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OBSERVATIONS
MAGNETISM AND METEOROLOGY,
MADE AT
MAKERSTOUN IN SCOTLAND,
IN THE OBSERVATORY OF
GENERAL SIR THOMAS MAKDOUGALL BRISBANE, BART.,
G.C.B., G.C.H., D.C.L., LL.D., F.R.S., F.R.A.S., H.M.R.I.A., PRESIDENT OF THE ROYAL SOCIETY OF EDINBURGH,
AND CORRESPONDING MEMBER OF THE INSTITUTE OF FRANCBE,
In 1845 anv 1846.
FORMING VOL, XIX. PART I. OF THE TRANSACTIONS OF THE ROYAL SOCIETY OF EDINBURGH.
EDITED BY
JOHN ALLAN BROUN, Esa,
DIRECTOR OF THE OBSERVATORY.
EDINBURGH:
PRINTED BY NEILL AND COMPANY.
MDCCCXLIX.
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CONTENTS.
InTRODUCTION—
Position and Description of the Observatory,+++++-+...:+01eserenceeeeeseneeesneeeeressseeneae ees enenes
System of Observation, and Staff of Observer's,.++++--.+:ssseseesescessseseersesseseteeseeseaecsetaeens
Declinometer—
Description of the Declinometer, asta lala aietorete wlaltictc ticiais's.cisisusiclaicle w cvsiel eveieis/aleine nuleiwaisielaclelansiaanieawece
Baaeerotithie isiclile Divisionas;-s4c<cts0csssedscsanisoncscsslosWevardedecabeveds).beasnccveracs
Scale Readings for the Magnetic Axis, Sratetarataictheciereicinierslam ete clatclele-cleiatelewraiattle tisisvame cin sere te ete ciate
COrrections,-.-+++seecssssseee see tee eee eee eee scenene stent nsec eee ees see eeraer ene enercsteescenesenenes
Removal of Torsion, SEC., ver eee eees shoe eeeecevcce ener er esa cen ceseeeseeeneccecsarerenecceseeneeten
Teper: iS VEST Ea SGE cae Se CUO geo ECE coe ann EE SiO AHP OP Oia OB PR
Method of Observation, Rees atria fata witeswiocahatesiciaiw sie aoa dl siartinitbieluio’eltaeante sci aiaaieleiplelave /atajauiais Sauiolnere tices
Absolute Magnetic Declination, Seistesistceeteisic ste Ire eines Toteraiein sta Triacete hain) alos stolel 6ihejaip.are elolelajanterelersiale ala
Unifilar Magnetometer and Observations of the Absolute Horizontal Intensity of the Earth’s
Magnetism—
Position and Description of the Instrument, --++--+++++e.-sseeeeeseeeeeeeenee eee ereese ecu ees
Formula of Reduction, methods of Observing, &€., -++-++++-sereseeteeetee esse eceee ren ees
Results of Observations (see Addendum).
Bifilar or Horizontal Force Magnetometer—
Description of the Instrument, miata la cietoretersioinistcrerrisiviviaie‘slcialeip sie's/ejeteisiaiave'e.0je.ciaeiersiasiaicita ats Saleie Mawr desolate
Usual formula of Reduction, ----++.. ccsceseecccceeceereccen ee cosencectccsseeteneenecesenens
New formula of Reduction, --:---+2+seesesesessesececcneceecenscreeeneecesenercesssteeeereeaees
Determinations of the Coefficient of Reduction, ---++-+++:+-eseseseeeeseneeeereeeseeeeesees
Coefficients applicable to the observations since 1841, «.----+++.sesseeereereeeeee eee new ene
Constants for Reduction after turning the Arms of the Torsion Circle, «-----.-.......
Time of Vibration of the Bifilar Magnet, ----+-.++:seseseseeessccnseescssceueeeeaeea eee renees
Mode of Observation,-------- SA RD OA AAS ROE Bate COED COG TREDEO COACH EFA: U0 NEC CE CAME: REET es anes Ae
Balance or Vertical Force Magnetometer—
Description Of the Instrument, ...--+eeseesseceseeeeeseerecsesnccereceseeesescecencesseeeenens
Usual formula of Reduction, Stat aterahstei Vetta tate veee avoloave sicTt tate arclasetetaiommle austere clalerwecaleiafe:d lala veivie Qioeteiacteialereen
Times of Vibration, Pama SRD EE CEG DEC ORDO OGOC ODE OAR CETERA CRULCECC CCE ORC EEE eE EDO TE nSe cer aee
Conclusions from the observations of the Time of Vibration, --.---+-++--+-seeesereeeee
Observations to discover the causes of the anomalies in the Time of Vibration, -.--
Insufficiency Of the usual formula, ---+-+---sesceeeeeereeeeeeeeeeersceeneeeeeeeeereeseern ees
Observations for a statical determination of the Balance Coefficient, .-----...-...--...
Adjustment of the Balance, and connection of the Observations, -------+-++s++-+s0e0-5-
Method of Observation, --++1--+++sseeeeeseeceeescesuseesee cau senseeees PEN SCAT ite AMT Ea eee RS
The Temperature Coefficients of the Deflecting, Balance, and Bifilar Magnets—
Temperature Coefficient of the Deflection Magnet, -..--.+++s+eseessseeeeereeeeserennaeees
Coefficient Constant for High and Low Temperatures,- ..----.--++-:eseseesereeeeerseeees
Temperature Coefficient of the Bifilar Magnet by hot-water experiments, ...---+-.-+-
Coefficient Constant for High and Low Temperatures,:--+-++++.:.erssceereseeeesereceeeee
PAGE
xX1x
Xx
XXV
XXVii
XXVI1
XXVIil
XXXi
XXXIil
XXXili
XXXIV
XXXV
XXXVI
XXXVI
XXX1X
val
CONTENTS.
Method of determining the Coefficient by the comparisons of the usual observations,
Conclusion that the Variations of the Horizontal Component are independent of
the temperature of the soil and atmosphere, ...---++++eeserererer eee eee eee eee eee eeenes
Determinations of the Coefficient, --+++csesseeeerteteetenersceee ene ccseeercsteeeaseentencseees
Error of the determinations by hot and cold water experiments,.------++++++++++e+eeees
Temperature Coefficient of the Balance Magnet by hot-water experiments, ----------
Coefficient Constant for High and Low Temperatures,-------+++--++++esereeeeeeeree ess ene
Conclusion that the Variations of the Vertical Component are independent of the
temperature of the soil and atmosphere, :-----+++---- one
Determinations of the Coefficient by comparisons of the usual observations,.-----.---
Inclinometer—
Description of the Instrument, -----+--+++++++esetereeeeeeee arte reteetiticny nil raph Nie weder tees
Observations for the determination of Instrumental Errors, -------+++++++++eese+e+seeees
Method of determining the Absolute Vertical Component and Inclination (footnote)
Barometer—
Description of the Instrument, .--+++++++:-+e++++e8+ Pasnle wives Some Me ee SReemacaeess sie voce eae
Indirect Comparisons with the Standard of the Royal Society of London, -..-....--
Corrections applied to the Observations,-----++++++++++++e++++ sdcnbs Saccedoo cae
Thermometers—
Description and Position of the Dry and Wet Bulb Thermometers, ----------.-.+-++-+
Seale Hrvors, -»asthciactes,ancnteotcessstens ater ssaeeehee eat peteee ER SENG ce otacy nea
Maximum and Minimum Thermometers, --+-++-++-seeceeeeecceeecee cee eeeeceeeeeseeeecaers
Actinometer—
Description of the Instrument, --...+--++++ssssrececeeenseesnnensceceestocessacssessessessecees
Method of Observation, «-+++++++++++++ re fon ee
Effect of Plate-Glass Cover,-.-+++++++:+:scececseseesecseccsenescrtscsenseenccenseescenecnessees
Rain-Gauges—
Description and Positions of the Gauges, --++-+se1:-:eeeeeseeceseeeeeee sees eeeeeeeeceneesees
Vanes and Anemometer—
Position of the Vanes, -+++++--+eeecesceeceessceceenereeseseeenesceensnseneeneesersrr eee seaeeeees
Description of the Anemometer, «----++--+++ssssseessceensnsnseessennesceeneeesecererseeeeenses
Mode of Observation, Siera.cie lia aisie ici ve \aiarn'e(blosieie eialets nites ereleteisteieeie tial nate aeeatetsRataaieis a snip ele o,ai6.0 sera
State of the Sky—
Mode of estimating the Extent of Sky Clouded, and the Motions of Clouds, --......
Symbols used for the amount of Sunshine and Rain, ----++++++++se- seers eres ee ee ec ee eee
Clock, &c.—
State of the Clock in the Magnetic Observatory, &€., --+-+-++eseseeeeeeeceeeee erence eee ees
Description of the Tables of the Observations, aici lola, ee pistafolaia ety ns nmin iwgnbtiateleainisiealysipaicisiniciuip'e/e) sisi «=. 0.0/0 aioe
Reference to the Abstracts of Results, hietaiaipi aie elvte elaiuis/aininie'einiwiataliatalielnlaleictei wisi alma alain eturnin lnfaleratsiels (bin(eletols\e'e <ae'e (sip
Account of the Curves projected by the Anastatic Process,:+++-++++-+++0+eesereeceeeeee crs ece rcs eeecee
ADDENDUM—
Results of Observations for the Absolute Horizontal Intensity, made with large bars,
Observations for Induction and Temperature Coefficients of small bars, ---.--..-----
Results of Observations for the Absolute Horizontal Intensity, made with small bars,
CONTENTS. vil
PAGE
MaewneticaL Opservations, 1845—
Hourly Observations of Magnetometers, ----...+---+++sesssecssesseccnsnseessseceseeenesesesnceenss 1
Term-Day Observations of Magnetometers, Molpiavere'sis Tole Vein elavaiainimtatsicialCiatayaieratarate dg lcislcte s elecicisie's slersiaiaisic's 69
Extra Observations of Magnetometers, siolottalate'alatele e/sluretefatsinie| svete sia rihelalstemereislsteceveraisuielsinstelsiareisiaiais 2 ciatoate 89
Notes on the Aurorz Boreales seen at Makerstoun, -.++:++.-.seesesessecenessseeseeeeeeaes 118
Observations of Magnetic Dip and Absolute Horizontal Intensity,.-........:sesseeeeseeceee 129
METEOROLOGICAL OBSERVATIONS, 1845—
Hourly Meteorological Observations, »--......:00::scsssssseeeenesescceeecccaeeseesseseseeseseeaees 135
Daily and Extra Meteorological Observations, -++++++++++++++esessreeeeeeee Sal oleletulelafetsters/t'areleislercie'e 273
Maximum and Minimum Temperatures, and Amount of Rain,-.+.+...:.s.seceeeeeeeees 274
Temperature of Water in Pump-Wells, -----:::ssssececesecneecessccceeeeerecenentseeneseses 276
Observations of the Actinometer,..----++++:++ecsteseeesrteneenrcsseteecccnnsecteeeeteeereneeres 277
Additional Meteorological Notes, Flowering of Plants, &., ---+s.+sescesecesecneeeeees 282
MAGNETICAL OBSERVATIONS, 1846—
Daily Observations of Magnetometers, slalateteteiptarsiitn sloltielersistaia oid Semieratelclale's aialein stsiure'siae's's e\scicte cie'e's cttae’ cicle 287
Extra Observations of Magnetometers, Rrafaieleroteinit a sieleleielcaisiate atsts’sletursintele’e cieteiele\s'cielee srstscteiste’ svc cis clsialee ites 325
Notes on the Aurore Boreales seen at Makerstoun,-----+++++2+:+-sseseereereeeeneee eee 342
Observations of Magnetic Dip, and-for the Absolute Horizontal Intensity,--...........+.- 348
Observations for the Absolute Horizontal Intensity with Small Magnets and Circle
Magnetometers, etek Tar aon a ee oheta eet Ceasorie ota chasis aia inns es wlerniiacs, dims ote aimisroalciacnse wis laiaie owlaw oats 349
MerTEoROoLOGICAL OBsERVATIONS 1846—
Daily Meteorological Observations, orate retobaiaee ei rta elcid orel nines ate iniicetate io etalOvatace eievale atoie'eve/eisis\s aialels Sis saucioleretolale micas c 353
Daily and Extra Meteorological Observations, -++--+++++++seeeesereceseeersetereressa eae eeneerene 411
Maximum and Minimum Temperatures, and Amount of Rain,.-.-.-+-.-...000-..sssees 412
Observations of the Actinometer, hoes is terere}alcrete aleters/aisVels/a:sleiniuraceraiwleisistetarevcteis’slsiaca's’asacaele cle etelctels weveleinete 414
Dates of Flowering of Plants, Temperature of Water in Wells, &€., --+++-+-++seseeeee 420
CORRIGENDA IN THIS VOLUME OF OBSERVATIONS FOR 1845 ann 1846.
Introduction, page xx., lines 9 and 10, substitute P for p and Q for g
— xxi., line 5 from foot, for termination. read termination,
— xxi., line 3 from foot, for seconds, read seconds:
— xxii., line 6, make the correction given below for 1844, Introd., p. xxii., line 11
— xxvii., line 4 from foot, and p. xxviii., lines 2, 7, and 16, substitute P for p and Q for g
— xi, heading of page, for Bifilar or Horizontal read Balance or Vertical
Page 25, 94 15, column “ Balance Corrected,” for 416°3 read 516°3
— 39, 244 18, column “ Bifilar Corrected,” for 552°8 read 512'8
— 51, 244 104, column “ Balance Corrected,” for 457°8 read 487°8
— 58, 54 8b, column “ Balance Corrected,” for 478°6 read 5786
— 59, 114 22h, column “ Declination,” for 18°93 read 08°93
— 148, 14 235, column “ Gott. M. T.” for 14 235 read 14 2335
— 182, line 6 from foot, column “ Gott. M. T.,” for 54 0» read 64 Ob
— 312, line 1, 2d column, ‘‘ Gott. Mean Time,” for 24 2 0™ read 5b 2h Om
— 312, ,, i “ Balance Corrected,” for 387°7 read 479°7
— 316, 224 104, column “ Balance Corrected,” for 3721 read 2661
— 320, 264 104, column “ Balance Corrected,” for 131:0 read 231:0
— 322, 23410", column “ Balance Corrected,” for 272:1 read 143:3
CORRIGENDA IN THE VOLUME OF OBSERVATIONS FOR 1844.
Introduction, page xiv., line 13, for n read (1+) 2
— xx.,, lines 9, 10, and 13, substitute P for » and Q for q
— xxii, line 11, for {1+k ()—b,) —¢ (to—t,)} read {1-k (b)-b)) +49 (t—t,) }3
(This accidental error does not extend to the reductions which were performed by
the latter form.)
— xxix, lines 10, 15, 20, and 29, substitute P for p and Q for g
— xli., heading of page, for Bifilar or Horizontal read Balance or Vertical
Page 202, 204 104, column “ Wind. Force in 10™,” for 6:0 read 0:0
— 235, 184 225, column “ Wind. Force in 10™,” for 2:2 read 0:2
CORRIGENDUM IN THE VOLUME FOR 1843.
Introduction, page xlii., line 21, for X tan (u—9d) read C X tan (u—d); C being a constant
POSITION AND DESCRIPTION OF THE OBSERVATORY.
1. The Magnetical and Meteorological Observatory at Makerstoun, in Rox-
burghshire, was erected by General Sir THomas MAkDOUGALL BRISBANE, Bart., in
the year 1841. The geographical co-ordinates are as follow :—
Latitude, : : : : : 55° 34’ 45” N.*
Longitude, : : é : : 0" 10™ 3:5: W. of Greenwich.
‘Height of the barometer cistern above mean water at Berwick, 213 feet.{
2. The Magnetical Observatory is situate nearly on the summit of a ridge, which
occupies the left or northern bank of the Tweed, being 540 feet distant from, and
80 feet above, that river. The Astronomical Observatory is upon the highest part
of the ridge, 140 feet due west of the Magnetic Observatory. A fair horizon is seen
from the Observatory hill, being bounded about 10 miles to the east by a slightly-
swelling ground, which, to the east-south-east, seems to join the Cheviot Hills. The
view is bounded about a mile to south and south-west by a ridge, forming the right
bank of the Tweed; about 500 feet to the south-west and north-west by masses of
trees in the Makerstoun grounds ;§ and from | to 3 miles to north-west, north, and
* Ast. Nach., vol. x., p. 214.
+ Deduced from the longitude of the Astronomical Observatory, Mem. Roy. Ast. Soc., vol. xi.,p. 171.
{ Obtained from levels for a railway, and from barometric comparisons.—See Makerstoun Ob-
servations for 1843, Introduction, p. ix.
§ The above view, taken from a point about fifty yards to the NE. of the Magnetic Observatory,
shews the trees in the grounds at their most unfavourable elevation.
MAG. AND MET. oBS. 1845 anp 1846. ¢
x INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
north-east, by an elevated ridge, which forms, to some extent, the northern boundary
of the valley of the Tweed. From north, by the east, to the south, the elevation of
the horizon, with a slight exception, is under 2°; from the north to the north-west,
increasing from 2° to 4°; from the north-west to the south-west, the tops of the
trees are elevated from 5° to 8°; and from the south-west to the south the eleva-
tion is under 4°. The highest point of the Cheviots, which is 2656 feet above the
level of the sea, is about 18 miles to the east-south-east ; it is occasionally referred
to in the meteorological remarks on clouds.
3. The Observatory hill, it is believed, is composed of felspathic trap. The
Tweed, immediately to the south, and for a mile to the east and west, flows more
or less through this rock, which does not appear upon any part of the hill. The
opening for a foundation to the Observatory shewed only masses of rolled pebbles,
and boulders of greywacke and trap.
4. The Observatory is rectangular in its plan, 40 feet by 20 feet internally. It
is formed of wood ; copper nails were used ; and iron carefully excluded from every
part of the structure. The pillars for the magnetometers and telescopes are of
stone, from 22 inches to 19 inches in diameter, and are placed upon excellent stone
foundations, completely unconnected with the floor, and every part of the building.
By a reference to the plan and elevation, the following details will be understood.
(Plate I.)
There are two windows to the south, with the door between ; and three to the
north, which open like folding doors. The dimensions of the principal apartment
are, 40 feet long, 12 feet broad, and 12 feet high. The two ante-rooms are each
15 feet long, 74 feet broad, and 12 feet high. The instruments are indicated in the
plan as follow :—
D, The Declinometer.
t, Its Reading Telescope.
A, The Azimuth Circle and Transit.
H, The Bifilar or Horizontal Force Magnetometer.
t’, Its Reading Telescope.
P, A Pillar for a Collimator (not used).
V, The Balance or Vertical Force Magnetometer.
I, Pillar for the Inclinometer (not used here).
B, The Standard Barometer.
W, The Anemometer.
W’, The Wind-Vane Dial-Plate.
T, The Thermometer Case.
C, The Mean Time Clock.
ns, The Astronomical Meridian.
Dt, The Magnetical Meridian.
DECLINOMETER. os
The vane farthest to the right in the elevation, Plate I., belongs to the anemo-
meter ; the others give the direction of the wind.
SYSTEM OF OBSERVATION, AND STAFF OF OBSERVERS.
5. In the beginning of 1843, the number of daily observations was increased to
nine, at two-hourly intervals, commencing with 18" Gottingen mean time (5" 10™ a.m.
Makerstoun mean time); these, together with all the other daily observations, were
made by Mr WELSH and myself. In the end of 1843, I recommended to Sir THomas
BrisBANE to add Mr ALEXANDER HoGe, who had been previously employed in the
term-day observations, to the establishment, for the purpose of obtaining a complete
diurnal series of observations. Sir THomAs, with his usual anxiety to render the
Observatory in every respect useful to science, at once complied with my recom-
mendation ; and, in the beginning of the year 1844, hourly observations were com-
menced, which were continued till the end of the year 1845. In 1846, the num-
ber of daily observations was diminished to nine at two-hourly intervals, as in 1843 ;
three additional observations of the magnetical instruments were made daily, namely,
at 234, 1, and 7" Gottingen mean time. The other observations in the magnetical
observatory, consisted of term-day observations once a-month (discontinued in
1846) ; extra magnetical observations during magnetic disturbances ; observations
of magnetic dip ; observations of absolute horizontal intensity ; and extra observa-
tions of various meteorological phenomena. All the observations have been made
by Mr Jonn WeELsH, Mr ALEXANDER Hoce, and myself; Mr Dons assisting in
the term-day observations, and on a few occasions during disturbances. The more
difficult observations for the magnetic dip, absolute horizontal intensity, and the
determinations of constants were made by Mr WELSH and myself.
I beg again to express here how much I am indebted to Sir THomAs BrisBaNneg,
in every matter connected with the conduct of the Observatory. Without his will-
ing co-operation, unceasing kindness, and the confidence which he has placed in my
labours from the commencement, it would have been irksome for so small a staff to
have performed conscientiously so large a mass of work. Science is not only in-
debted to Sir THomas BrisBaNe for the foundation and support of the Observatory,
but also for the manner in which his expenditure has been made fruitful.
I owe my best thanks to my principal assistant Mr Joun WELSH, for the care
and assiduity with which he has assisted me on all occasions, whether connected
with the making or reducing of the observations. Mr Hoce also has been of much
use, especially in observing, and in many matters of handicraft, which his previous
experience and inventive skill have rendered available to the purposes of the Obser-
vatory.
Every care was taken by the observers to examine the observations made by
those immediately preceding them ; in this way it is believed that few errors have
escaped detection. Accidental errors in the times of observation have always been
Xil INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
noted, and generally the director of the Observatory believes that he has an easy
task in bearing the responsibility connected with the honest discharge of the duties
of his assistants.
DECLINOMETER.
6. The declination magnetometer was obtained from GruBsB of Dublin. The
magnet a is 15 inches long, $ inch broad, and 4 inch thick ; it fits into a stirrup 0,
whose two eyes receive an axle to which the suspension thread is attached ; near
the north extremity it carries a scale divided on glass, c; near the other, at a dis-
tance from the scale of about 12 inches, the focal length, it carries a lens of 14 inch
diameter, d. A marble slab m, cemented to the top of the stone pillar p, carries two
copper tubes ff, 35 inches long, which are connected at the top by a mahogany
tie g, bearing the torsion-circle and suspension apparatus ¢, and, about 7 inches
from the slab, by another wooden cross-piece h, which supports a glass tube e enclos-
ing the suspension thread. The magnet is enclosed by a rectangular wooden box k,
formed of two pieces fitting into each other in the middle by a groove and tongue,
glazed at the extremities, and having only a small aperture in the centre for the
DECLINOMETER. xiii
suspension thread: this box also enclosed a copper ring for checking the vibrations
of the magnet; it was removed October 15, 1844, and is not shewn in the figure :
a cylindrical wooden drum 2, together with two lids (not shewn in the figure), fitting
by pegs upon the cross-piece A, enclose the box and magnet. There are two glazed
apertures also in the wooden drum, opposite those in the rectangular box ; one to the
north, where a small mirror / throws light upon the glass scale; the other to the
south, between the lens and reading telescope. All the joints of the boxes, including
those in contact with the marble slab, are covered with velvet, and both boxes are
pressed firmly against the marble slab by means of leaden weights, which were pre-
viously determined to have no effect upon the position of the magnet. In order to
destroy any effect of radiation, both boxes were covered with gilt paper, externally
and internally. The suspension apparatus is covered by a wooden cap (not shewn
in the figure). In order to prevent the variation of humidity within the boxes as
much as possible, the whole apparatus was covered, February 14, 1844, by a thick
double cotton hood, tied round the stone pillar, and having only small openings
at the glazed apertures of the boxes. The reading telescope is fixed to a stone
pillar ; the object glass is 8 feet to the magnetic south of the magnet lens.
7. The pillar of the azimuth circle, used for determinations of the absolute
declination, is between the pillars of the magnetometer and its reading telescope.
This theodolite is by TroucuTon ; the circle is 15 inches in diameter, is divided to
5 minutes, and is read to 5 seconds with three verniers. The lines of collimation of
the theodolite and reading telescopes coincide when the middle wire of the former
is seen, in either telescope, coinciding with the vertical wire of the latter. The
circle is retained in the same position on its pillar, but the transit telescope is re-
moved, excepting when required for observations of absolute declination.
8. The following are the data used in reducing the observations of the decli-
nometer :—
Values of the declinometer scale divisions in angular measure.
The adopted mean value of one division of the long scale of 500 divisions = 06725*
During the observations of absolute horizontal intensity, the magnet with the
long scale, usually in the declination box, was removed to the unifilar box in the
intensity house, and a magnet with a short scale was substituted.
The adopted mean value of one division of the short scale of 300 divisions = 0'°7500*
From the adopted values of the long and short scale divisions, the coefficient
for reducing the divisions of the short scale to the same value as the divisions of the
long scale = 1:115 ; the reciprocal = 0°897.
* For details, see Introduction to the Observations for 1843, pp. xiii. and xiv.
MAG. AND MET. OBS. 1845 AND 1846. d
xiv INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 anp 1846.
The adopted zeros of the declinometer scales are as follow :—
Reading of the long scale at the magnetic axis, . , : : : 257-14*
Correction for the effect of the bifilar and balance magnets, . ; , + 016
Adopted zero for the long scale in 1845 and 1846, : : : 257°30
Reading of the short scale at the magnetic axis, . , ; ’ ‘ 147-11*
Correction for the effect of the bifilar and balance magnets, . : ‘ + 0-14
Adopted zero for the long scale in 1845 and 1846, ; : : ; 147-25
9. The determinations for the effects of the different magnets upon each other
are given in the previous volumes. The plate-glass in the declinometer boxes was
found to have no effect upon the reading of the magnet. The determinations of
the corrections are given in the volume for 1843.
10. Correction for the torsion force of the suspension thread.
The errors due to the torsion force of the suspension thread are produced, first,
by the magnet moving out of the plane of detorsion ; secondly, by the variation of
this plane (due generally to the varying humidity of the atmosphere). The error
due to the former, even in the most marked cases, is less than the probable error of
the observations, and it is altogether inappreciable, compared with the error due to
the second.
If the plane of detorsion be that of the magnetic meridian, and the magnet be
deflected through an arc w by turning the arms of the torsion circle w, the torsion
is w—u, and the equation of equilibrium is
mXu=(w—u) H
where m is the magnetic moment of the bar, X is the horizontal component of
the earth’s magnetic force, and H is the torsion force for an arc equal to radius,
whence, if m X = F,
is the quantity by which the deviations of the magnet from the plane of detorsion
should be multiplied to obtain the decrements due to torsion. If be the observed
deviation, (1 + ©) = the true deviation. The following observation for the value
of ® for the suspension thread placed in the instrument, June 22, 1843, and for the
long scale magnet will serve for the observations in 1845 and 1846 :—
Dec. 262 23%, 1844. Arce-! w = { tapes are"! a = hei ‘aean value of © —0-00140.
* For details, see Introduction to the Observations for 1848, pp. xv. and xvi.
DECLINOMETER. XV
This value has not been used for this correction; it has been employed in the
observations of absolute horizontal intensity made in 1845 and 1846.
11. The second and most important error due to the torsion force is that pro-
duced by the variation of the plane of detorsion. Unless when the period and extent
of change is known, this can only be corrected by removing it; this is done occa-
sionally in the following manner :—The magnet, with its stirrup, being removed, a
brass bar and stirrup of nearly the same weight aud dimensions is suspended ; the
rectangular box being removed, the cylindrica] box being completely closed, and the
shutters removed from the glazed lid, the extremities of the are of vibration are
observed through the latter; the marble slab beneath having radii drawn for every
5° on each side of the magnetic meridian, the positions of rest at the extremities
of the ares are estimated to 4°; the deviation of the mean position from the magneti¢
meridian is known, and the arms of the torsion circle are turned through an equal
angle in the opposite direction ; the position of rest is then in the magnetic meri-
dian. Much time and care were bestowed upon these observations, as the error
due to this cause is by far the most serious that occurs in connection with the de-
clinometer.
12. The following are all the observations for the elimination of torsion made
in 1845 and 1846, together with all the occasions on which the magnet was touched
or removed from its box. When the mean position of rest for the north end of the
brass bar was found to the east of the magnetic north, the torsion existing is con-
sidered positive, and the effect of + 10° of torsion=—0'-84 (from the previous obser-
vation for the value of ®.) In the first case below, the north end of the brass bar
was found to rest 74° west of the magnetic north ; and the brass bar was thereafter
made to coincide with the magnetic meridian.
Feb. 5433" 1845. Torsion removed, —74°. The torsion could not have been
more than 3° at first, but the north end of the brass bar moved slowly westward as
if affected by currents, or as if the suspension thread were affected by moisture.
March 234 233° 1845. Torsion removed, — 182°.
April 24 23%, 1845. Torsion removed, — 34°. The line of detorsion of the
supension thread varied during the observation ; at first it was about N. 3° E. and
S. 3° W.; ultimately it was N.5° E. and S. 5° W. The torsion circle was turned 34’.
May 8¢ 33", 1845. Torsionremoved, —}°. June 184 21", 1845. Torsion re-
moved, + 14°.
Sept. 214 223», 1845. Torsion removed, + 19°. This amount of torsion may
possibly be due to the dampness arising from washing the floor of the Observatory.
September 204, the brass bar was suspended, with some difficulty in the manipula-
tion, but it is not conceived that much torsion could have been thus introduced.
Dec. 29° 03", 1845. Torsion removed, 0°. The magnet with the short scale
was placed in the declinometer box after this examination of torsion, the long scale
magnet being removed to the intensity house for an observation of absolute hori-
xvi INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 anp 1846.
zontal intensity. Dec. 294 191", 1845. Torsion removed, — 11°. Dec. 304 7" 40”,
1845. The deflecting bar was vibrated in the declinometer box after which the tor-
sion was removed, + 74°. Dec. 314 0". Torsion removed, 0°. The suspension
thread found slightly stretched ; it was wound up about 4 inch, and torsion removed,
+ 12°. The readings of the declinometer before and after the removal of the tor-
sion were compared with the readings of the unifilar in the intensity house ; allow-
ance being made for the torsion removed, both comparisons gave the same differ-
ence of readings.
Feb. 154 234", 1846. Torsion removed, — 9°. Feb. 1640?—2", magnet with
short scale in declinometer box; 3"—5" deflecting bar vibrated in declinometer box.
Feb. 164 53", 1846. Torsion removed, + 5°.
April 134 223", 1846. Torsion removed, + 3°. At 23" the magnet with short
scale was placed in the declinometer box. April 14473, the deflecting bar vibrated
in the declinometer box ; at 84", torsion removed, + 84°.
April 14* 20°, 1846. Torsion removed, + 34°. Comparisons of the unifilar and
declinometer readings were made before and after removing the torsion, the differ-
ences of the readings agreed when allowance was made for the torsion removed :
these comparisons shew that no torsion is introduced during the manipulations con-
nected with the exchange of magnets, and the suspension of the brass bar.
The declination magnet remained untouched from April 144 20", 1846, till
May 124 5", 1847, when the torsion removed was — 144°.
13. The times of vibration of the declination magnets are as follow :—
Ss.
The time of one vibration of the declination long scale magnet=17:8*
« spiee als au monies wate osha cee BBO ember short scale ...... =17-0
14. The observations of the declinometer were made in the following manner :—
The points of the scale which coincided with the vertical wire of the reading tele-
scope were noted at the extremity of the magnet’s vibration occurring between
27 seconds and 9 seconds before the minute of observation, and at the extremities
of the two following vibrations: the scale readings at these periods being a, 6, and
a+2b+c
eS
seldom above 3’, and is generally less than 2’; during disturbances, however, the
arc is often considerable, and frequently in these cases only two observations are
made, the mean position being obtained at once from the mean of the two readings
at the extremities of the vibration which occur between 18° and 0° before, and between
0° and 18*after, the minute of observation.
15. All the observations of declination in this volume are absolute. They are
rendered so as follows :—
c, the mean position is deduced by the formula The arc of vibration is
* See Introduction, 1843, p. xxi.
DECLINOMETER. XVll
The middle wire of the theodolite telescope is brought to coincide with the ver-
tical wire of the fixed reading telescope (7.); the three verniers of the horizontal
circle are then read; the theodolite telescope is turned (on the vertical axis of the
circle) until its middle wire coincides with the vertical line on the north meridian
mark of Sir THomMAs BrisBANE’s (the western) transit in the Astronomical Obser-
vatory, and the verniers are again read. In order to obtain the reading of the
horizontal circle for the astronomical meridian, the theodolite telescope was placed
as nearly as possible in the meridian, and being accurately levelled, the time of the
sun’s transit was observed by the Magnetic Observatory clock. The sun’s meridian
passage was also observed by Sir THomas BrisBANE with his western transit in the
Astronomical Observatory, and the clocks in the two observatories being imme-
diately compared, the true time of transit by the clock in the Magnetic Observatory
was obtained. The difference, if any, between the true and observed times, was
due to error of azimuth ; the latter, being very small, was obtained from the former
in multiplying by the factor,
cosine sun’s declination
cosine sun’s altitude
16. If A’ be the difference of the horizontal circle readings for the wire of the
fixed telescope and for the north mark, Z be the azimuth of the north mark, and
D be the angle at any instant contained by the line of collimation of the reading
telescope and the adopted zero scale reading, the true westerly declination at that
time will be
180° — A’ + Z=+D.
The values of 180°— A’=A, obtained in 1844, 1845, and 1846, are given in the
following Table :—
MAG. AND MET. OBS. 1845 AND 1846. é
xvii
Date.
INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 anp 1846.
TABLE 1.—Determinations of the Value of Angle A.
Readings of Horizontal Circle
For Wire of Declination Telescope.
Verniers
Mean.
B.
32-2
37:9
52-1
34-2
29-2
23-3
47-1
39-2
17. The mean value of angle A from
in 1844, 1845, and 1846, :
The mean value of angle A from
in 1844,
For North Mark.
Verniers
all the
all the all
observations
The value of angle Z (Table 8, Introduction, 1841-2),
Whence angle A + Z,
=23°
= 25°
te
Angle A.
24"°5
23'°9
388
Har |
The absolute westerly declination, therefore, corresponding to the zeros of the
scales, No. 8, =25° 28°04. This value has also been employed for the observa-
tions in 1845 and 1846. For other scale readings differing from the zero by the
angular quantity + D, the declination is obtained from the formula, declination
= 25° 28°04 ==).
UNIFILAR MAGNETOMETER. X1X
UNIFILAR MAGNETOMETER AND OBSERVATIONS OF THE ABSOLUTE HORIZONTAL
INTENSITY OF THE EARTH’S MAGNETISM.
18. In the beginning of April 1843 two small wooden houses were erected about
19 yards to the north of the Magnetic Observatory ; the larger of the houses contains
the unifilar magnetometer and the dip circle, and the smaller, which is 10 feet to
SSE. of the larger, contains a reading telescope for the magnetometer.
The unifilar magnetometer resis on a strongly-braced wooden stand, which is
fixed by copper battens and plaster of paris to a stone slab, resting on a stone founda-
tion separated from the floor ; the top block of the stand, a solid piece of mahogany,
carries a vertical box enclosing the suspension thread and supporting the torsion
circle, this box is open on two opposite sides near the stand top; a horizontal box
slides on the vertical one, and when close to the stand top the magnet is completely
enclosed ; an internal box was afterwards added, and all the precautions already
indicated (6.) for the declinometer were taken. The magnet used when observations
of absolute horizontal intensity were made was that usually in the declinometer, a
spare magnet being fitted with a short scale (8.) was substituted for it ; the telescope
(that intended for a collimator to the bifilar) was placed in the smaller wooden house,
on a stand in all respects similar to that for the unifilar: the two houses were con-
nected, during observations, in the line of collimation of the telescope and magnet by a
wooden tube blackened within. A beam of straight well-seasoned fir, 11 feet long,
32 inches broad, and 1# inches thick, was placed on each side (outside) of the larger
wooden house, in the line passing through the centre of the suspended magnet, and
at right angles to the magnetic meridian ; each beam was let into the tops of two
strongly-braced wooden trestles, 7 feet apart, which rested on wooden posts driven
into the ground, and which were fixed to the latter by catch-pins, allowing a slight
adjustment for the distance of the beams from the magnet; the trestles and beams
being removed after each observation. The beams were carefully divided with the
aid of a brass standard yard made by Messrs TRouGHTON and Simms; the gradua-
tions were adjusted to their distance from the suspended magnet in the following
manner :—a well-seasoned fir rod, shod with brass at one extremity, and terminated
at the other by a capstan-headed screw, by which the rod was accurately adjusted to
a length of six feet, was passed through holes in the sides of the wooden house and
unifilar box ; the middle of the rod coinciding with the suspension thread, the catch
pins of the trestles were then loosened or forced in till the extremities of the six-feet
rod coincided accurately with the division 3 feet on each beam. The deflecting
magnet was adjusted to the graduations on the beams with the aid of a lens; in 1844
the graduations were marked on brass pin-heads placed in the beams. The fixidity
of the trestles was verified in general after each observation, and the accuracy of the
graduations on the beams was verified usually before each observation.
Xx INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
19. The value of the absolute horizontal intensity is determined from the ob-
servations as follows :—If7r be the distance from the centre of the suspended magnet,
at which the centre of the deflecting bar is placed on the wooden beam, its axis being
in the line at right angles to the magnetic meridian passing through the centre of the
suspended magnet; and if wu be the resulting angle, through which the suspended
magnet is deflected, then since, by Gauss’s theory, the ratio of the magnetic moment
m of the deflecting bar to X, the horizontal component of the earth’s magnetic force,
is given by the following formula
il
m 1
—=—,* tan uz
xX P
q
1+ te + &e.
where p and q are quantities depending on the mode of distribution of the magnet-
ism in the magnetic bars, the value of the ratio may be determined from observa-
tions at three distances; tan wis obtained from the formula
1+k (6,—6,)
1l—g (ta—tv)
tan wu=tan [ps {(u, + u—% + ou) — f (d,+,d—d,+,d)} (1 + 2) |.
where a is the angular value of one division of the long scale, f is the coefficient for
reducing the divisions of the short scale to the value of divisions of the long scale ;
u, and yu are the observed mean scale readings of the unifilar magnetometer, the de-
flecting bar, with its north pole towards the east, being at a given distance to the
east and west respectively of the suspended magnet; similarly, w, and ,w are the
mean scale readings when the deflecting bar, at the same distance, has its north pole
towards the west: d,, .d, &c., are the simultaneous mean scale readings of the de-
clinometer corresponding to wm, wu, &c.: (1 + ®) is the torsion factor. [The quan-
tity within brackets is given for each distance in the column of the observations,
“ Deflection corrected for Torsion.” | The last factor reduces the value of the tangent
to the value of X and m at the time of vibration, & being the coefficient for reducing
the scale divisions of the bifilar magnetometer to parts of horizontal force, bz, and 6,
are the mean scale readings of the bifilar at the times of deflection and vibration re-
spectively ; q is the temperature coefficient for the deflecting bar, t, and t, are the
mean temperatures of the bar during deflection and vibration respectively.
The values of log 4 7° tan wu are given for each distance, pages 166 and 167.
20. The following are the values of the constants used in the previous formula :—
a = 4035 (No. 8.) f = 1-115 (No. 8.) q = 0:000288.*
In 1845, & = 0:000140. In 1846, & = 0:000135.
For the thread in the unifilar box and long scale magnet, ® = 0:00212.
21. The comparative observations for u and d were rendered simultaneous thus :
* See Introduction, 1843, p. xl.
UNIFILAR MAGNETOMETER. XX1
The times of vibration of the unifilar and declination magnets being nearly the same,
the time at which the unifilar magnet attained one extremity of its arc of vibration
was instantly indicated by me to Mr WELSH, who could observe my motions through
one of the north windows of the Observatory. He immediately commenced counting
the beats of the mean time clock, and at the end of the 18th second (the time of
one vibration) both observers commenced making readings of the magnetometers ;
those by Mr WeLsH being made at the end of the 18th, 36th, 54th, &c., seconds,
and those by myself at the extremities of the arcs of vibration. From 7 to 12 con-
secutive readings were made thus at every position of the deflecting bar, and from
these the mean readings are deduced. In order to render the ares of vibration of
the unifilar as small as possible, the deflecting bar was at first moved gradually up
to its nearest distance (5 feet); in placing it at the next distance, it was moved
rapidly nearly half way, and 18 seconds counted, when it was immediately shifted
the other half. When the farthest distance was attained, it was placed vertically,
and after 18 seconds, laid down in the reverse position ; it was then moved as before,
by half-shifts, to its next position, and so up to the nearest. After comparative
readings for that position, the magnet was again placed vertically, and carried to
the beam on the opposite side of the suspended magnet ; at the end of 36 seconds
it was laid down at the same distance, and with the north pole in the same direc-
tion as before. In general, the vibrations were small, seldom above 10’; when
larger, the magnet was checked by slightly approaching or removing the deflecting
bar at proper times, with reference to the directions in which the suspended magnet
was moving. Mr WELSH observed the bifilar magnetometer before and after each
comparison, and after each comparison I observed the temperature of the deflecting
bar by means of a thermometer lying beside it.
22. The value of the product m X is obtained from the formula
K x?
NGS
where 7 is the ratio of the circumference to the diameter, T is the true time of one
vibration of the deflecting bar deduced from the observed time T’ by the formula
ao 2 s
T=T (1-45 )a+9)" (1 - samp
where a and q’ are the semiarcs of vibration in parts of radius at commencement
and termination. @ is the ratio of the torsion force to the horizontal component of
magnetic force for the declinometer thread with the deflecting bar suspended, s is
the daily rate of the clock in seconds, K is the moment of inertia of the deflecting
bar obtained from the formula
Nf! 2
K =3(r7+77)M. 72-7?
MAG. AND MET. oBS. 1845 anp 1846. rh
xxll INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
where 7; and 7, are the internal and external radii of a regular metallic ring, M is
the mass of the ring in grains, T, is the true time of one vibration without the ring
(obtained by the above formula for T), T, is the true time of one vibration with the
ring placed horizontally on the magnet, and is obtained from the observed time T,
by the formula
T.=T/(1-S2)a+a7(1 — S50) {2+ # Go —%) -—2 mv —4)}
where the symbols in the first four factors have the same meaning as given above
for T, it being remembered that ® is the ratio of the torsion force to the horizon-
tal force for the declinometer thread when carrying both the deflecting bar and ring.
The last factor contains the reduction of the time of vibration to the value of the
horizontal component for which T, was the time of vibration without the ring; &,
therefore, is the bifilar coefficient, given previously, 6, and 6, are the mean bifilar
readings when the times of vibration T, and T, were observed, g is the temperature
coefficient for the deflecting bar, given above, ¢ and are the mean temperatures of
the bar corresponding to the observations T, and T;. As the observations for de-
flection are corrected for temperature to the temperature at the time of vibration,
the value of m at the time of vibration is taken as the standard value for the series,
as far as temperature is concerned, but it requires a correction for the inductive
action of the earth, due to the position of the magnet during vibration in the plane
of maximum magnetic force ; during deflections the magnet is placed at right angles
to the magnetic meridian, and is therefore unaffected by induction : the first equa-
tion, No. 22, therefore becomes
mn wie Bes
fie (1 + —)
m
oy is the induction coefficient, and is obtained from the formula
m
dm n+s—26
m n— Ss
where n and s are the mean scale readings of the bifilar magnetometer when the
deflecting bar is placed in the magnetic meridian with its north end towards the
north and south respectively, its centre being in the prolongation of the bifilar
magnet, b is the bifilar reading with the deflecting bar away.
The deflecting bar was vibrated in the declinometer box after the observations
of deflection; it was suspended in a stirrup of silk fibres of the same thickness as
the suspension thread, and a small thread of paper bemg gummed to the extremity
next the reading telescope, the times of transits of the paper at the wire of the read-
ing telescope towards right and left were observed for every 5 vibrations each way
UNIFILAR MAGNETOMETER. Xxill
up to the 96th vibration. A moveable object-glass fits upon the object-glass of the
reading telescope, in order to bring the paper slip into view without altering the ad-
justment of the telescope.
23. The following are the values of the constants used in the preceding formule.
® for the declinometer thread, with the deflecting bar suspended, is obtained from
the value when the long scale magnet is suspended by multiplying the latter by the
ratio of the moments of the two magnets; thus, moment of long scale magnet is to
moment of deflecting bar, as 1-000 is to 0°942, whence, from the values of © for
the long scale magnet (No. 10), we have for the deflecting bar and declinometer
thread,
During 1845 and 1846, © = 0:001482.
The rate of the Observatory clock was generally less then 2 secondsa-day. No
correction for rate was therefore employed in the determination of T.
24. The following are the details for the determination of K. |
The deflecting bar is 1°25 feet (= a) in length; 0-0719 feet (= 6) in breadth ;
6216°7 grains in weight (= W). The value of K had been previously determined
a? + 6
12
termine it by the more accurate formula given previously ; as it was doubtful whether
the declinometer thread could sustain the deflecting bar and an additional weight,
a stronger thread was substituted, for which ® was determined.
from the formula x W. In January 1848, it was thought desirable to de-
The deflecting bar was vibrated in a stirrup of silk without any appendages,
the results are :
Jan. 114 1848. Observations made by chronometer, DEN7, No. 1665, rate — 5*-0.
Semiares of vibration, are~ 1 « = 103° are ~! a =6°. Temperature of bar 38°4 Fahr.
Mean observed time of one vibration from 160 vibrations, Ty’ = 15::9037.
Bifilar magnetometer observed every 5™ during vibration, mean during vibration corrected
for temperature = 553°9 sc. div.
Deflecting bar with scale and lens suspended in a stirrup of silk as during vibration, 6=0-00200.
Deflecting bar with scale and lens suspended in brass stirrup, © =0-00193.
The true value of one vibration, T, = 15°-9014.
The deflecting bar having been placed in a stirrup of silk fibres, of the thick-
ness of the suspension thread, it was vibrated with the vertical circle of the inclinometer
balanced horizontally upon it ; the results are :
Internal radius of ring = 0:39541 feet. External radius of ring = 0-43779 feet.
Weight of ring = 9628-6 grains.
Semiares of vibration, are—! « = 12°, are—~10/ = 73°, temperature of bar = 38°-0 Fahr.
Rate of chronometer, Dent, No. 1665, s = — 5:0.
Mean observed time of one vibration from 120 vibrations, T,’ = 27:-8006.
xxiv INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
Bifilar magnetometer, observed every 5™ during vibration ; mean during vibration cor-
rected for temperature = 569°3 sc. div.
Deflecting bar with scale and lens suspended in brass stirrup, ® = 0:003966.
As all the observations for the time of vibration of the deflecting bar had been
made previously with the bar suspended in a stirrup of silk fibres, in order to employ
the second formula for K, given above, depending on the dimensions and weight of
the bar, it was necessary in the present case, to determine the value of K for the
same mode of suspension. The two values of © given above for the bar suspended
ina brass and in a silk fibre stirrup, without the ring, give ® with brass stirrup
suspension, to ® with silk stirrup suspension, as, 193: 200, whence, from the value
of ® above for brass stirrup suspension and magnet with the ring, = 0:003966, we
find ® for silk stirrup suspension and magnet with ring = 0°004109.
Since 6, — 6, = — 15-4 se. div., k = 0-000135, 4, — ¢, = + 0°4, g = 0:000288.
The true time of one vibration with the ring (reduced to the value of X for T,) T, = 275-8403.
25. From the above, therefore, we find for the deflecting bar without ap-
pendages,
Log K, = 2°9091359 at the temperature of 38°:4 Fahr.
The value of K used in the reductions in the present volume has been obtained
from K, by the formula
K =K,{l+e (% — 38)?
where ¢ is the dilatation of steel for 1° Fahr. = 0:0000068, and ¢, is the temperature
of the bar during vibration.
2 2
From the formula K = "4" W, log K = 29096331.
26. The following are the observations for the value of the induction coefficient
™m
oOo
Nov 15, 1847. A strong wooden beam having been fixed horizontally in the
mm
prolongation of the magnetic axis of the bifilar magnet which lies at right angles
to the magnetic meridian, the deflecting bar was mounted in a wooden block having
a groove cut to contain the bar; when the deflecting bar was in its place, it was in
the same horizontal plane with, its axis was at right angles to, and its centre was in
the prolongation of, the axis of the bifilar magnet. The block was fixed to the
wooden beam: the deflecting bar when removed and replaced, was carried with a thick
cloth glove or silk handkerchief, to prevent variation of temperature in handling.
In reversing the magnet, the same side was always kept next the bifilar magnet.*
* Tt will in general be preferable to place the deflecting bar to the east or west (as in the present
observations), rather than to the north or south of the bifilar magnet, since I have found that the
centre of figure may differ considerably from the centre of magnetism; perhaps, for the same reason,
when observations are made only on one side of the bifilar magnet, the deflecting bar should be in-
verted when it is reversed, since the magnetic axis may be nearer one side of the bar than the other.
UNIFILAR MAGNETOMETER. XXV
TABLE 2.—Determination of the Induction Coefficient for the large Deflecting Bar.
Gotti Position of | _Bifilar thee Sum of _| Difference 3m
ngen OS1t1i0N O. 1 eading, * um oO:
Mean Tai Deflector. Reading. Deflector Deflection. | Defections. | f Deflec- ee See
Away. tions.
d hem: Sc. Div. Se. Div. Sc. Diy. Se. Div.
1847.
Nov. 5 0O 11 | Away 157-12
15 | N. Pole S. 265-35 156-05 109:30
19 | N. Pole N. 42-57 154.97 112-40
23 | Away 153-90
0 24 | Away 154-22
273) N. Pole S. 263-60 154-95 108-65
30 | N. Pole N. 43-47 155-47 112-00
33 | Away 156-10
0 36 | Away 156-75
403) N. Pole S. 266-90 157-32 109-58
44 | N. Pole N. 46-75 157-72 110-97
48 | Away 158-20 ©
Nov. 6 1 12 | Away 150-50
15 | N. Pole 8. 259-12 150-42 108-70
18 | N. Pole N. 39-57 150-35 110-78
21 | Away 150-27
1 23 | Away 150-75
26 | N. Pole S. 259-46 150-97 108-49
29 | N. Pole N. 39-67 151-18 111-51
33 | Away 151-47
1 34 | Away 151-27
37 | N. Pole S. 261-10 151-44 109-66
40 | N. Pole N. 40-60 151-60 111-00
43 | Away 151-77
1 45 | Away 152-17
48 | N. Pole S.| 260-97 151-98 108-99
50 | N. Pole N. 39-97 151-85 111-88
54 | Away 151-60
27. The adopted value of ao = (Hie,
This value is very large, more than twice as great as that obtained for small
4-inch bars, and is evidently not to be neglected in the rudest mode of observation
for the horizontal intensity. [For the final results, see the addendum to the In-
troduction. ] }
BIFILAR OR HoRIZONTAL ForcE MAGNETOMETER.
28. This instrument was made by Gruss of Dublin, and is similar in its general
construction to the declinometer, having two boxes, gilt internally and externally as
in the latter instrument. The magnet a a, whose dimensions are 15 inches, % inch,
and 4 inch, is placed in a stirrup 6, which carries below it a tube ¢, having a lens d
MAG. AND MET. OBS. 1845 AND 1846. g
xxvi INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AnD 1846.
at the extremity next the reading telescope, and a glass scale at the other : the scale
has 280 divisions, and the graduation at the 300th division ; increasing readings of
the scale indicate increasing magnetic force ; the axle of a grooved wheel ¢ fits into
the suspension eyes of the stirrup 6; the magnet, with these appendages, is borne
by a silver wire f, passing round the grooved wheel, and having its two extremities
pegged into a suspension roller g: the roller is supported by the torsion circle h,
which also bears, beneath the roller, a micrometer-headed screw 2, right-handed where
it meets one extremity of the wire, left-handed where it meets the other. The screw
serves to render the distance of the extremities of the wire equal to the diameter of
the grooved wheel ; the screw and suspension roller turn with the verniersk. A
copper ring encircles the magnet, in order to check the vibrations. A thermometer
by ADIE and Son is enclosed by a glass tube passing through both boxes, the stem
of the thermometer, with the graduations, being above the lid of the outer box; the
bulb of the thermometer rests in a cup, formed in a brass bar of the same dimensions
as the bifilar magnet; the brass bar is supported on a wooden stand, and lies parallel
to the magnet ; the bulb of the thermometer is also covered loosely by a small brass
cap. It was found from comparative observations (p. xxx., Introduction, 1843) that
a thermometer, with its bulb free, would differ 1° from the thermometer resting in
the brass bar in the course of a daily change of 10° of temperature. The whole in-
strument was covered with a double thick cotton cover Jan. 3146" 1844, The read-
ing telescope is fixed to a stone pier, 8 feet south of the magnet.
29. In the adjustment of the instrument, the magnet is forced to a position at
right angles to the magnetic meridian, by turning the arms of the torsion circle.
As, in forcing the magnet from the meridian, the upper extremities of the wire will
move through a greater angle than the lower extremities, the wires will be no longer
vertical, and the magnet and appendages will be raised; the forces producing equi-
librium will, therefore, be the weight suspended endeavouring to attain the lowest
point, and the horizontal component of the earth’s magnetic intensity acting on the
free magnetism of the bar.
BIFILAR OR HorIzONTAL ForcE MAGNETOMETER. XXVil
30. If v be the excess of the angular motion of the arms of the torsion circle,
or upper extremities of the wire, over w, that of the lower extremity or magnetic bar
in moving the latter from the meridian, the equation of equilibrium will be
2
5 a .
m X sin u = W —-sin v
m, X, W, a, and / being respectively the magnetic moment of the bar, the hori-
zontal component of the earth’s magnetic force, the weight suspended, the interval,
and the length of the wires. The differential of this equation (u = 90°) divided by
it, gives
<= =nacotv+t (Q+2e—e')
n being the number of scale divisions from the zero, or scale reading when u=90",
a the arc value in parts of radius of one scale division, ¢ the number of degrees
Fahrenheit which the temperature of the magnet is above the adopted zero, Q the
coefficient of the temperature correction for the varying magnetic moment of the
A fe} / . .
bar or the value of —" for 1° Fahr., e and e’ the coefficients of expansion for the
brass of the grooved wheel and silver of the wires.
31. It is assumed, in the previous investigation, that the suspending wire does
not act by any inherent elastic force; that the torsion force depends wholly on the
length and interval of the two portions of the wire and the angle of twist: it seems
extremely probable that this condition will not be rigorously sustained, and it is
very possible that there may be considerable twist in the suspending wire or thread ;
for this reason, the following methods, which are independent of the angle of torsion,
were employed to determine the coefficient :—
32. If the equation of equilibrium for the bifilar magnet at right angles to the
magnetic meridian be
TODS ce i 9 ce an Sal el rach le Oak ie ema OS
and if a magnet whose magnetic moment is M be placed with its axis in the mag-
netic meridian passing through the centre of the bifilar bar, the centres of the two
bars being at a distance r, and the resulting angle of deflection be n scale divisions
=v, the equation of equilibrium will be
2M Deeg _w
m{ X+20 (1+ 444) } cos Av=F.
For a value of the earth’s horizontal foree X+4X, which would alone have pro-
duced the deviation av, we have
m(X+4X) cos av=F';
xxvill INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
whence
AK 3 DM 7a ne
<a Ge a
If the deflecting bar be now employed to deflect a freely-suspended unifilar magnet,
in order to determine the value of x as in the ordinary observations for absolute
horizontal intensity ; w being the angle of deflection for a distance r, we have
2M 54
ssc = 7? tan saa
x pe
Tee
If the bifilar and unifilar bars are of the same dimensions p and qg, which are quan-
tities depending upon the distribution of the magnetism in the bars, may be consi-
dered equal to p, and q, and if the deflections for both bars be made at the same
distances, or r=r, then
and k=
(3.
If, however, the bifilar and unifilar magnets are of different dimensions, the value
.2M : ; ‘ : :
of x should be obtained from the deflections of the unifilar at different distances,
p, and q, being eliminated ; that value being substituted in equation (2.), and defiec-
tions of the bifilar being obtained for different values of r, p and qg also may be
eliminated.
33. Wooden beams having been placed in the prolongations of the bifilar mag-
net, and at right angles to these, lines were drawn upon them, passing through the
centre of the magnet,—one in the magnetic meridian, the other at right angles to
it; several distances from the centre of the suspended magnet were marked off on
each side with a beam compass; a similar structure was erected for the declinome-
ter. The following observations were then made :—
34. 1st, A cylindrical magnet, 3:65 inches long, was employed to deflect the bifilar
and declinometer magnets; these two magnets are of the same dimensions, 15 inches
long, and were obtained at the same time from the same maker. ‘The short de-
flecting bar was placed at different distances to the east, and at the same distances
to the west, of the bifilar bar, and the deflections of the bifilar were observed in
scale divisions. Observations of deflection of the declinometer magnet were then
obtained with the same deflector—the deflector, however, being placed at the same
distances, as in the other case, to the north and south of the declinometer magnet :
in both cases, the prolongation of the suspended bar, in its normal position, passes
through the centre of the deflector. The results are obtained in the Ist portion
of Table 3.
BIFILAR OR HORIZONTAL FoRCE MAGNETOMETER. XX1X
2d, The same deflecting bar was placed to the north and south of the bifilar
magnet, and to the east and west of the declinometer magnet, the prolongation of
the axis of the deflector in both cases passing through the centre of the suspended
bar. The results are given in the 2d portion of Table 3.
35. 3d, A large deflecting bar (15 inches long) was employed in the same manner
as the small bar in the Ist instance.
4th, The large deflecting bar was employed in the same manner as the small
bar in the 2d case.
36. In the 3d case, deflections of the bifilar could only be obtained to the E, and,
in the 4th case, to the S of the bifilar magnet, owing to the proximity of the bifilar
to the walls of the Observatory. It was easy, however, from the observations with
the small bar to make the requisite corrections for the difference of deflection on
the opposite sides: the correction is small. The results for the 3d and 4th cases are
contained in the 3d and 4th portions of Table 3.
TABLE 3.—Observations of Deflection for the Determination of the Coefficient of
the Bifilar Magnetometer.
No. Deflections of Bifilar Magnet. Deflections of Declination Magnet.
£ Resulting
0
Series ; : ¢ : OG
Date. Distance. |Deflection.| Mean. | Therm.|| Date. Distance. |Deflection.| Mean. | Therm.
1847. | Feet. Se. Div. | Sc. Div. ° 1847. | Feet Se. Div. Ge Uh
E 133-4 N 94-30
f May 11 | 2-2 ie 138-5 136-0} 53-6 || May 14| 2-2 : 92-25 62 43) 62-6 || 0-0001345
: (i 64:4 : N 45-85
1 May 13 | 2-7 Vw 66-4 65-4] 61-9 || May 14] 2-7 9 45-00 30 33] 62:6 || 0-0001359
E 34-3 N 24-20
May 12 3-267) W 35.4 34-9| 58-5 | May 14 3-267) 8 23.70 16 6} 62-6 |) 0-0001342
May 11/25 JN | 1184 | 319.0] 53-9 | May 15/25 {Z| 8160 [55 9! 60.0 | 0-0001350
Ss) 119-6 W | 82-40
N 60-9 E 42-05
2 May 13 3.167) 5 60-7 60-8| 60-9 | May 15 3-167) W 42.75 28 31] 60-0 || 0-:0001364
N 21-0 E 14-34
May 12 4583/5 21-0 21-0) 56-4 || May 15 4-583 ty 14.58 9 43} 60-0 | 0-0001346
IN casos. E 82:56
_{ ay Gate Basito.a 1198) May 15|6-917{%,) S5'4 (55 37| 61-5 | 0-0001351
INP) séceen E 50:13
May 15 8-209) Beo|) ail a= May 15 8-209 Wy soa [33 38] 61-5 | 0.0001370
E 125-1 N | 102-48 |,
: May 19) 5-5 i pie 126-0] 55-2 || May 15) 5-2 {5 103-28 69 11); 61-8 | 0-0001350
E 42.9 iN ple chant
May 19 7192) ao 43-0] 55-2 || May 15 6-833) § 44.23 29 45) 61-8 || 0-0001357
37. 5th, In May and August 1847, a theodolite magnetometer by Mr Jonzs of
London was converted into a unifilar horizontal force magnetometer, the suspended
MAG. AND MET. oss. 1845 anp 1846.
h
xxx INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
bar having been deflected through an angle (w — 0) as in Dr Lamonvt’s method, the
variations of horizontal force were deduced from the scale readings, reduced to angu-
lar measure by the formula
AS = — cot (u— ) (Au — Ad) +q¢(t— t,)
where w is the angle which the deflected magnet makes with the astronomical meri-
dian (negative when to the east) and 6 is the westerly declination, a u being the are
value of the change of reading, and a 6 the are value of the simultaneous change of
declination obtained from the declinometer : g being the temperature coefficient of
the deflecting bar (=0°00021), t the standard temperature of the deflecting bar, and
¢ the temperature of observation.
In May 1847, only three comparisons of the two instruments were obtained
during a moderate magnetic disturbance ; the results are given as a specimen of the
accuracy that may be expected from this method.
Bifilar (Au-Ad
)
Date. Corrected. be 3 x cot 39° 40’ : q (¢~t) &
Se. Div. i - .
May 7222 0™ 4799 —14 42:88 25 16:82 484 y
8 1 32 571-9 —14 2028 25 4-00 + 0°005331 49+1 —0:000084 0:0001344
The mean of the two values of k=0-0001336.
In August 1847, a series of comparative observations were made of the bifilar
and a unifilar horizontal force magnetometer : these observations were made every
hour for three days ; the results were grouped so as to obtain the greatest differences
of readings for comparisons ; the mean angle of deflection of the unifilar (w—0) was
equal to 65°. The final result of the whole groups was, that the changes of the uni-
filar scale readings were to those of the bifilar scale readings as | to 0-974, the value
of k for the unifilar being 0-0001389, therefore that of & for the bifilar = 00001353.
The changes of horizontal force from which this result was deduced were small.
38. The following, then, are the values of k, deduced by the five different pro-
cesses above :—
Short deflector, E. and W. of bifilar magnet, and N. and S. ofdeclination magnet, s=0-0001349
BPR, a EP Nu and B.,.5s05 sate bones shone doneg lite SO EERE... Sheba a
Largedeflector, Hic) URW ones ce eee se ING GS eis <<< sa +s -aeenee k=0-0001360
Ree OeeTS S. SEATS Ea Ot Si con 25 Sc RIED SLU UN 6S.
Comparisons of unifilar and bifilar horizontal force magnetometers, k=0-0001353
The mean of all the results gives 4£=0:0001354
The adopted value of k=0-0001385
BIFILAR OR HORIZONTAL ForcE MAGNETOMETER. XXX1
39. The value of the coefficient deduced from the angle of torsion of the sus-
pending wire is
1847. k =a cot v = 000032675 x cot 69°-3’ = 0-:0001251.
The ratio of the true value of & to that determined by the angle of torsion — = 1:08.
40. The true values of & from 1841, obtained from the formula 1:08 x a cot v
are given below :—
July 114 20 1841—July 234 551841, . . . . . &=0:000128
Aug. 4 20 1841—Sept. 7 5 1841,... . . k=0-000164
Sept. 7 20 1841—Sept. 30 5 1841,. .. . . k=0:000158
Geta 6 20, 1841—Oet.) 19428) 1841.00.) « «>. 4=0:000141
Oct. 19 23 -1841—April27 4 1843, .. . . . &=0-000135
April 28 2 1843—Nov. 8 22 1843,. . . . - k=0-000130
Noy. 10 8 1843—Dec. 31 12 1845, . . . . . k=0:000140
Jan. O 12 1846, and afterwards, .... . . &=0:000135
In order to reduce the variations of the horizontal component given, pages 229
to 238, in the volume for 1843, to their true values in parts of the whole horizontal
component, they must be multiplied by the factor 1-316.
41. The bifilar magnet was adjusted November 104 1843, when the angle v was
found = 68° 18’, the bifilar scale reading 173. The angle v remained unaltered,
excepting for short periods during disturbances, till January 1, 1846. (See No. 43.)
42. During considerable disturbances the collimator scale, which contains too
small an angle, goes out of the field of the reading telescope, it was found necessary
in these cases to turn the arms of the torsion circle until it reappeared ; afterwards
the arms of the torsion circle were turned to their original position : experiments
were made in the end of 1842, during periods of slight change, which shewed, after
turning the arms of the torsion circle a few degrees in either direction, that on re-
curring to the original value of v, the scale readings were unaltered. If @ be the
small angle through which the arms of the torsion circle are turned, 1 be the scale
reading minus 170 (the adopted scale zero), then N, the number of scale divisions
from the zero (corrected for temperature) for the same force when 8 = 0, is ob-
tained from the formula,*
5 sing B cos (v+f)
N= cos (v ia 1)
a COS Vv COS v
= A +nB +t¢
+ig
6 is considered negative when v is diminished, n is negative when the reading is
below the zero (170), ¢is the temperature of the magnet minus 26°, and q’ is the
temperature coefficient in scale divisions.
* Introduction, 1843, p. xxx.
xxxii INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
43. The arms of the torsion circle were turned during disturbances,* as follows :
Se. Div.
1845. Apr. 13915 0O™— 46" B=—1V12” A=—658 B=1:052.
1845. Apr. 135 15" 46™—21" 30™ B= —0°9'5 A=— 85.
The arms of the torsion circle were turned to their original position at April
134 21" 30™.
Se. Div.
1845. Dec. 347" 2>— 49m B= +3°13°5 A= +1600 B=0°857.
1845. Dec. 34 75 49m™— 44 235 B= —O0° 6° A=— 55.
The arms of the torsion circle were turned at Dec. 44 24", to within 1’ of the
original reading ; the observations from that time till January 1, 1846, have been
corrected by — 1:0 sc. div. for this error of torsion circle reading.
1846, January 1° 35°. On account of the readings of the bifilar approaching
too near the top of the scale, the arms of the torsion circle were turned from 110° 16-5
to 109° 31, or through 45"5, the angle v being changed from 68° 18’ to 69° 35. The
constants for reducing the observations after January 1, 1846, to scale divisions of
the same value as in 1844 and 1845, are
1846. B= + 0°45°5 A= + 39°7 se. div. B = 0:967.
These reductions have not been made, but the observations from January 0*
13", 1846 to 1* 3" have been reduced by the quantities
A = — 39°7 se. div. B = 1-033
to the same scale values as the other observations in 1846, and in the abstracts the
observations for 1846 have been rendered comparable with those for 1845 by the
following process :—The scale reading immediately before turning the arms of the
torsion circle was 218:7, therefore n = 48°7 sc. div.; and from the constants A and B
and the previous formula, N = 9°3 sc. div., whence the readings after the adjustment,
the horizontal force remaining constant, should have been 179°3, the temperature of
the magnet being 40°-9, the tabular reading before adjustment (corrected for tempera-
ture + 300) = 547-0, and the reading after adjustment (corrected for temperature
+ 300) = 508°7; since these two readings are for the same value of the horizontal
force and the zero for 1845 is taken in the abstracts of the results as 500, z the zero
for 1846 will be obtained from the equation
(547-0 — 500-0) 0:000140 = (508-7 — z) 0:000135
whence z = 460:0.
* In 1847, it was found more convenient during disturbances, to bring the scale of the bifilar
magnet into the field of the reading telescope, by means of a small deflecting magnet placed on a
beam of wood at known distances from the centre of the bifilar magnet. The effect of the deflecting
magnet was afterwards determined with the aid of a second deflecting bar.
BIFILAR OR HORIZONTAL FORCE MAGNETOMETER. XXXill
300 sc. div. being added to all the readings for 1845, 340 has been added to all
those for 1846, and the same zero, 500, is applicable to both.
44. The mean time of one vibration of the bifilar magnet, is between 26s and 27s :
the natural are of vibration is generally very small, and when considerable, the time
of vibration was found less than from large artificial vibrations.* 255 or 26s has been
used in the observations for 1845 and 1846.
45. The observations of the bifilar were made as follows: The point of the
scale coinciding with the vertical wire of the fixed telescope is estimated to the
tenth of a scale division at 258 before the minute of observation, at the minute, and
25s after it; the three readings being a, b, and c, the mean is deduced from the
a+2b+e
aeT
26° Fahr.,a constant quantity has been added to all the corrected means. If N be
the observed mean, and ¢ be the observed temperature of the bifilar bar, the cor-
rected means n, given in this volume, are obtained from the formule
formula The mean thus obtained is corrected to the temperature of
1845. »=N + 3000 + (¢—26°) 1:90
1846. » = N + 340-0 + (¢—26°) 1:975
1:90 and 1-975 being the temperature coefficients in scale divisions in 1845 and 1846
respectively.
The means fin parts of the whole horizontal force given in the abstracts of re-
sults, are obtained by the formule
1845. f= (n — 500) 0-:000140
1846. f= (nm — 500) 0:000135
0:000140 and 0:000135 being the values of & for 1845 and 1846 respectively.
No correction has been applied for the effect of the balance magnet, which is
constant.
BALANCE OR VERTICAL ForcE MAGNETOMETER.
46. The balance magnetometer was made by Rosinson of London ; it is com-
posed of a magnetic needle cfc, 12 inches long, about # inch broad, and about 1
inch thick, with knife-edged axle /, which rests upon agate planes ; brass rings ¢ ¢ are
attached to the extremities of the needle, each ring carrying a cross of spider threads.
The needle is placed at right angles to the plane of the magnetic meridian, it is ac-
curately adjusted to horizontality by a screw e which balances the needle, another
screw d working vertically, regulates its sensibility. The apparatus, and a ther-
mometer h which gives the temperature of the needle, is covered by a rectangular
box k having glazed openings on both sides opposite the spider crosses ; those on one
side allowing light to be thrown on the crosses from two small mirrors, (one of which
* Introduction, 1841-2, pp. xxvill., xxix.
MAG. AND MET. OBS. 1845 anp 1846. a
xxxiv INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
1 is indicated in the figure) ; those on the other, for viewing them and determining
their position, which is done accurately by the microscopes b b carrying micrometers ;
the micrometer heads a @ are divided into 50 divisions. The supports g of the
~+-4----------------------------------44
=
t
needle are fixed to a marble slab m, cemented to the stone pillar s ; the horizontality
of the slab is indicated by a level n, the lower edge of the rectangular box is covered
with velvet, and it is screwed hard to the slab by the screws 27. A four-fold cover
of thick cotton cloth was placed over the rectangular box, July 184 12" 1844, in
order to keep the temperature as uniform as possible; the box itself is covered with
gilt-paper internally and externally.
47. If m be the moment of free magnetism of the needle, Y the vertical com-
ponent of the earth’s magnetic force, G the weight of the needle into the distance of
its centre of gravity from its centre of motion, and € the angle contained by the line
joining these two centres and the magnetic axis of the needle, the latter being hori-
zontal, the equation of equilibrium is
m Y = G cos €
differentiating this equation, dividing by it, and having regard to the sign of a ¢
AY Am
— =tané Ae — —
m
where
72
tan € = cot 0 75
where @ is the magnetic dip, T’ is the time of one vibration of the needle in a horizontal
BALANCE OR VERTICAL FoRCE MAGNETOMETER. XXXV
plane, and T is the time of one vibration in a vertical plane.* 4 € is obtained from
the observations in micrometer divisions, one division being = 0'°1003.+
The time of one vibration in the horizontal plane, 'T’ = 12*00.t
Time of vibration in the vertical plane.
The needle being in its usual position on the agate planes, the moveable wire
of the left micrometer is made to bisect the spider-cross ; the needle is then vibrated
by means of asmall piece of steel, through an angle of about 40 micrometer divi-
sions or 4’, and the periods of the cross passing the wire, are estimated to a tenth of a
second (See Table 12, Introd. 1843, p. xxxix.) The are of vibration at the com-
mencement was measured by means of the right micrometer, it was usually taken
very small on account of the difference in the times of vibration with difference of
are (afterwards noticed, 54), although it is now certain that large arcs of vibration
give a time which satisfies better the previous equation and the true coefficient of
the instrument.
The following Table contains the observations for the value of T made in 1845
and 1846.
The number of vibrations observed, is given in the column after that contain-
ing the are of vibration at commencement.
TABLE 4.—Values of T, the Time of Vibration of the Balance Needle in a Vertical
Plane, with the Temperature of the Needle, in 1845 and 1846.
Arc at Number} Time | Tempe-
Number} Time | Tempe-
of one | rature
Vibra- of
tion. | Needle. P ‘ions. tion. | Needle.
Gottingen Gottingen
Mean Time. 2 5 Mean Time.
May
May
May
May
June 2
* See Dr Luoyp’s Account of the Magnetical Observatory of Dublin, p. 38.
t Introduction, 1848, p. xxxviii. t Introduction, 1841-2, Table 15, p. xxxv.
xxxvi INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 anpD 1846.
TABLE 4.—continued.
Mean Time ae eae im ee ones eo eee Com- of of one | rature
CoD ETE mence-| Vibra- | Vibra- of 3 mence-| Vibra- | Vibra- of
ment. | tions. | tion. | Needle. ment. tions. | tion. | Needle.
Arc at |Number| Time Tempe-
Gottingen
°
41-7
50-4
48. 1st, It has been concluded from Table 5, Introduction 1844, that after the
needle has been vibrated by any means through a large arc, its time of vibration
has been increased ; this will be apparent from the observations of vibration be-
fore and after April 304 74, July 244 184, July 264 31, November 54, and November
84 215, 1844. On all these occasions the needle was vibrated through large arcs,
either from the accidental approach of iron, or from the removal of the box for a
short period.*
49. 2d, It is obvious, from the observations for 1844, 1845, and 1846, that
the time of vibration depends upon the temperature of the needle, a change of +1°
of temperature causing a change of from + 05-05 to 0510 in the time of one vibration.
* See Transactions of the Royal Society, Edinburgh, vol. xvi., p. 69, Table I.
BALANCE OR VERTICAL FoRCE MAGNETOMETER. XXXVI
The amount of change in the time of vibration, for 1° of temperature can only be
determined from the changes within short periods, since,
50. 3d, The time of vibration diminishes with time. The balance needle was
adjusted, Jan. 272 1844, the times of vibration after the adjustment were
Feb. 12— 6%, 1844, Mean time of one vibration, 98:24 Temperature of needle, 33°-9
1S oy se 7") | A SGD! Wiggs eh oemektl. wher ag oleae 32°:0
DS CS 10 EEE ees a eee, ecco oe aoe ane GSO ea Pet Med As 33°°7
ety | ee eee ae GEO pcnse ie eaca: ce ohindde dacan-s « 33°5
The temperature of the needle is nearly the same in these cases ; it appears,
therefore, that the time of vibration has diminished fully two seconds in the first ten
months. This diminution is altogether independent of any variation in the magnetic
moment of the needle, since the time of vibration in a horizontal plane remains nearly
constant. From the beginning of 1844, to the end of 1845, the mean position of the
needle had varied about 300 micrometer divisions. Since the position of the needle
also varies with temperature, it does not at first appear improbable that the variation
in the time of vibration is due to the varying position alone. Increasing tempera-
ture at the same time raises the north end of the needle and increases the time of
vibration ; from the beginning of 1844 till 1846, however, the north end of the
needle has been rising, while the time of vibration has been diminishing. It is pro-
bable from this, and certain from other observations, that the time of vibration is
nearly constant for any angle which the magnetic axis of the balance needle makes
with the horizontal. During a considerable magnetic disturbance, April 174 1844,
observations of vibration were obtained for positions of the balance needle varying
400 micrometer divisions, yet the observed time of vibration only varied four-tenths
of a second, and that not directly with the inclination of the needle, but from errors of
observation and variation of temperature. Such a variation of position, if due to
temperature alone, would have required a change of 50° Fahr., which would have
produced a change of about 3*°8, in the time of vibration.*
51. In order to determine more distinctly whether change of inclination of the
magnetic axis affected the time of vibration to any considerable extent, the follow-
ing observations were made during an adjustment of the instrument.
January 18, 1848. The balance needle with its magnetic axis m the magnetic
meridian, nearly horizontal, mean position + 160 mic. div.
Arc of vibration at commencement, 32’. Time of one vibration, 8°-05.
After this observation, turned out the horizontal screw one revolution, which changed
the reading from + 160 mic. div. to — 818 mic. div.
Arc of vibration at commencement, 32’. Time of one vibration, 85-12.
* Transactions of the Royal Society, Edinburgh, vol. xvi., p. 72, Table IV.
MAG. AND MET. oBs. 1845 anp 1846. k
xxxvill INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
The horizontal screw was now turned in two revolutions, or one revolution farther
in than at first, when the reading was changed from — 818 mic. div. to + 1120
mic. div.
Arc of vibration at commencement, 21’. Time of one vibration, 8°00.
Finally, the horizontal screw was turned owt one revolution, as at first, the
mean reading becoming as at first + 160 mic. div., when
Are of vibration at commencement, 32’. Time of one vibration, 85-12.
52. These results are very consistent, and speak much in favour of the excel-
lence of the knife edges of the axle. It is quite certain, therefore, that the varia-
tions in the time of vibration observed in 1844, 1845, and 1846, were not due to the
varying position of the needle, since all the observations from 1844 till 1846 were
obtained from the needle when in positions varying lessthan 400 micrometer divisions.
53. As it was believed, that during considerable disturbances when the hori-
zontal component of the earth’s magnetism increased considerably, the north end of
the needle might be drawn slightly out of its position at right angles to the mag-
netic meridian, the following observations were made to determine whether such a
result would affect the time of vibration.
January 14¢ 1848. The balance needle being placed on its agate planes with its
magnetic axis at right angles to the magnetic meridian, the following observation
was made ; position of needle, micrometer reading + 180.
Are of vibration at commencement 84. Time of one vibration 115-27.
Needle vibrated excessively by a pair of magnetic SCISSOTS.
Are of vibration at commencement 48. Time of one vibration 115-28.
Brought a 4-inch deflecting magnet close to the side of the balance box near
the west extremity, in order to draw the needle out of the plane at right angles to
the magnetic meridian; after considerable vibration, always checked by changing
the position of the duflectur; the following observation was made :
Are of vibration at commencement 30. Time of one vibration 11s-28.
Performed the same operation with the deflector, and again observed,
Arc of vibration at commencement 8:0. Time of one vibration 11:12.
Now litted the needle by the Ys, lowered it, and observed the time of vibration
with a large are.
Are of vibration at commencement 100’-0. Time of one vibration 11:-27.
BALANCE OR VERTICAL FoRCE MAGNETOMETER. XXX1X
Again vibrated the needle by means of the deflector placed at the side of the
needle near its east extremity, so as to displace the needle from the plane at right
angles to the magnetic meridian, and observed time of vibration,
Are of vibration at commencement 90’:0. Time of one vibration 115-29.
None of these operations seemed to alter the time of vibration to any distinct
amount ; the box was accordingly lifted off, and the needle was placed about 3° out
of the plane at right angles to the magnetic meridian, the north pole (2.2. west ex-
tremity) being moved towards the north, the following observation was then made :
Are of vibration at commencement 9"0. Time of one vibration 105'58.
Although the time of vibration in this position differs somewhat from that in
the normal position, the previous observations prove that any deviations due to
natural changes of force, would be insufficient to cause the differences evident in
the Tables for 1844, 1845, and 1846.
54. 4th, It was found in 1844 and 1845, that the time of vibration depended
greatly upon the are of vibration, the time being greatest for large arcs. (See
Trans. Roy. Soc. Ed., vol. xvi., p. 70, Table IT.)
55. It is difficult, if not impossible, to offer any explanation of the anomalies
in the time of vibration noted above, the knife-edged axle is a fruitful resource in
instruments of this class, for the explanation of all difficulties. In this case, the
needle is by the best maker (RoBiNsoN) ; when examined by a lens, the knife edge
appears perfect, and finally, the anomalies disappear at certain times without any
apparent difference in the state of the instrument ; thus, in the observations already
given, Jan. 14, 1848, the time of vibration for an arc of 3’ is exactly the same as
for an are of 100’; the observations also for the time of vibration with the needle
differently inclined to the horizontal (Jan. 18, 1848), speak distinctly in favour of
the excellence of the knife edges. It should also be remarked, that previously to
the adjustment, Jan. 27, 1844, the curious effect of temperature upon the time of
vibration was scarcely exhibited ; and it may be added, that in eight months since the
needle has been adjusted with its axis in the magnetic meridian, the time of vibra-
tion appears to remain nearly constant and equally independent of temperature and
are of vibration.
56. It appears certain from these results, obtained from an instrument of the
best character, treated with the greatest care, that the time of vibration in a vertical
plane cannot be depended on as an element in the reduction of the observations of
the balance magnetometer..
57. The question still remains, to what extent these anomalies in the time of
vibration affect the observations for the varying vertical component of the magnetic
force? The following fact appears to render it certain that they have no effect
whatever. In determining, by the method of comparisons (see pages xlviii. and xlix.),
the effect of achange of 1° Fahr. upon the position of the needle, it has been found
xl INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
that this effect is nearly constant, while the time of vibration in the vertical plane
has varied from upwards of 11 seconds in 1843, to less than 6 seconds in 1846
(No. 77, 3d); the differences of the results for the temperature coefficient being in
all probability due to considerable changes of vertical force in the periods selected
for the determinations, and certainly having no relation whatever to the varying
time of vibration. Since the temperature coefficient in micrometer divisions (q’)
has remained constant, it follows that the coefficient of reduction (k) must also be
constant. This conclusion renders it the more desirable that the value of the angu-
lar motion of the needle in parts of the vertical component should be determined by
another method which does not involve the time of vibration; the statical method
already described for the bifilar magnetometer, has been employed for this purpose
with some modification.
58. January 6, 1848. Wooden beams having been placed horizontally at right
angles to the magnetic meridian, and a line having been drawn upon them, which
was a projection of the prolongations of the balance needle, a small deflecting bar
(3°65 inch long, and having a temperature coefficient = 0-000285), was placed verti-
cally at different distances on the beam, and the angles of deflection of the needle
were observed ; the centre of the deflecting bar was in the prolongation of the axis
of the balance needle when horizontal, and the distances were measured from the
knife edges of the axle, which, however, was found not to be the centre of magnetism
of the needle. The resulting deflections and values of & for each distance will be
found Table 5.
January 10, 1848, the balance needle was taken out of its box, and attached to
the brass detorsion bar of the declinometer ; the brass bar was mounted with a glass
scale and lens, and was suspended in the declinometer box ; the balance needle was
then deflected by the bar used for the previous deflections, which was placed to the
north and south of the suspended needle, so that in both series of deflections the
prolongation of the balance needle in its normal position passed through the centre
of the deflecting bar. The deflections for three distances are given, Table 6.
TABLE 5.—Observations of Deflection of the Balance Magnet resting upon the
Agate Planes, January 6, 1848.
| Bar E. Order Bar W. Bar E. Bar W.
Dis- | N. end of N. end N. end N. end Defiec-
tance of pea | Wpeer up. | down. down. i | tion at Value of k.
Balance. || vation. | Balance. Balance. Balance. 32".
Mic. Div. Mic. Div. Mic. Div. Mic. Diy. | Mic. Div. | Mic. Div.
+ 36-7] 14 |+ 69-5 — 49-0 ‘
+ 967-0|| 13° |-- 38355 = Ailes: — 382-2]) 308- 309-0 | 7-94533 || 0-0000099
+ 333-5) [+ 471-5 282-0 — 479-7) 391. 392-3 || 8-06003 || -0000099
+ 444.] || + 632-0 401-2 — 625-5 525. 506-5 || 8-18828) -0000099
+ 612-2 l+ 875-5 — 583-5 3 |— 850-5 | . 731-5 || 8-33067 || -0000099
+ 907-5 + 1238-2 — 890-0 — 1227-0) 5:7 | 1067-4 | 8-49577 || -0000099 }
+ 1184-5 + 1500-5 — 1125-0 — 1505-5 -9 | 1331-0 || 8-58925 | -0000096
IOP wwe
= 66:5 + 28-5 — 44:5
+ 190-2 + 338-0 — 280-7 — 349-5 . 290-1 || 7-94533 || 0-0000101
+ 899-0 + 1172-0 == i705) — 1188-0 -4 | 1047-5 || 8-49577 || -0000103
[eo o>)
BIFILAR OR HorizoNTAL ForcE MAGNETOMETER. xh
TABLE 6.—Observations of Deflection of the Balance Magnet suspended horizontally
by the Declinometer Thread, January 10, 1848.
Mean Deflection :
Distance of | Observed | Opserved | Value of | Corrected | Value of | Resulting | Temp. of
Defiecting Deflec- modere 14's for One Deflec- | Deflecting
Bar. tion. a Torsion, | Sc: Div. tion, Bar.
Se. Diy. *
25:37 | 1:00851| 25-59 0-746 32:0
52-46
52-91
117-43 118-43
From the deflections, Table 6, and the formula
M Pr, g
= 7? tan u (+—3+-4)
we find !
log z =9-13614 — log p, = 9-88791 Sales gazis 11654
From the previous equation,
M 1
tani 2 ==
x
r1+o,h
the values of = z —, p,, and g,, given above, and the values of r from the first column
of Table 5, oe substituted in this equation, the values of log tan u, column 12,
have been obtained. |
59. If Y, the vertical component, be substituted for X, in equation (2.), No. 34,
we shall have, since Y = X tan 0
KY.) M Py fy
ae X tan 9 = ei Ge
whence
tan w
n tan 6
. AY : Sgt:
where & is the value of a for one micrometer division, « and n are the corrected
horizontal and vertical deflections for the same distance 7; the former in angular
MAG. AND MET. oBS., 1845 anp 1846. l
xlii INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 anp 1846.
measure, its logarithmic tangent being given, column 12, Table 5; and the latter in
micrometer divisions, reduced to the temperature of the deflecting bar during hori-
zontal deflections ; 0 is the magnetic dip, the adopted value being 71° 20’. The
temperature coefficient of the deflecting bar = 0-000285.
The mean of all the values of k, 13th column, Table 5 = 0-00000994.
60. When the vertical deflections of the balance needle made July 14 and 2¢
1846, are compared by the previous method, with the horizontal deflections of the
same needle, given Table 6, allowance being made for the loss of magnetism of the
deflecting bar between July 1846 and January 1848, & is found = 0-00001025.
The adopted value of & for the balance magnet =0-0000100
This value of one micrometer division in parts of the whole vertical component
may be considered applicable to all the observations of the balance magnet since
1841: it has been used in the abstracts of results for the present volume,
61. The balance needle was deflected July 1 and 2, 1846, for the purpose of de-
termining the value of k, it was readjusted on July 24.
As the readings of the micrometer had become previously too much negative,
the horizontal screw was turned in a little, the following comparisons of observations
before and after the adjustment were made for the purpose of oa the two
series.
Mic. Div.
Mean balance reading corrected for temperature, June 294 and 304, . = 383-0
tn FBrcca tesa Rte is ways ae Ries eee ns sk ins cients een ae July 34and 44, . = 957-0
Difference of readings before and after adjustment, . . .. . . = 5740
Mean balance reading corrected for temperature, June 14—134,. . . = 396-5
* -wdSchnianesee th aad eumetehict «Ris « qaase acetate meee ~ June 154—274,. . . = 396-0
Mean change of reading for 14 days,. . . =— 0°5
Mean reading, therefore, before adjustment, commie to “ Sy, 1a - ow © 5 Bo5G
Mic. Div.
Mean balance reading corrected for temperature July 64— 184, = 966-4
Aes cfo ites sin 8b ine wei nT siaee 47a Cie ey -ioe oi sexta aen el Ree ee nO. ==. Olga
Mean ‘change.of reading for 14 days, ...). 2°] .:. . == 89
Mean reading, therefore, after adjustment, corresponding to July 134, . . . = 973-1
The readings after adjustment are therefore greater than before adjustment, by 5775
A comparison of the mean for the fortnight before adjustment, with that for the
fortnight after adjustment, rejecting days of disturbance, and allowing for secular
change, gave 577.
Mic. Div.
} 576-0.
The readings after adjustment, are therefore considered greater than those
Wefore adjustmbat, by 221228: tee Se ee eee ae
TEMPERATURE COEFFICIENT OF THE DEFLECTION MAGNET. xhi
The observations after July 24 are reduced to those before that date by the
above quantity.
62. The observations of the balance magnetometer are made in the following
manner :—The moveable wire of the right micrometer is made to bisect the spider-
cross half the time of vibration in the vertical plane before the minute of observation,
and that of the left micrometer as long after the minute; the mean of the two read-
ings gives the position of the needle at the minute. The readings increase posi-
tively when the north pole of the needle moves below the horizontal. The tabular
observations given, in this column, are obtained thus: n being the observed reading
of the needle (generally negative), ¢ that of the thermometer, giving the temperature
of the needle, g’ the temperature coefficient in micrometer divisions = 7:90, and R
the quantity in the column, “ Balance Corrected”
Jan. 141845—July 141846. R= 700 + ¢’ (¢,— 26) +n;
July 34 1846—Dece. 314 1846. R= 124+ ¢7 (¢— 26) +2;
increasing tabular values, therefore, indicate increasing vertical force.
THE TEMPERATURE COEFFICIENTS OF THE DEFLECTING, BALANCE, AND
BririnaArR MAGNETS.
Deflecting Magnet.
63. The temperature coefficient of the large deflecting bar (15 inches long), used
in the observations for the absolute horizontal intensity, was determined November
11, 1843, by hot and cold water experiments, see pages xlu. and xlii., Introduction
1843, for the details: the mean of all the observations gave
The correction for 1° of Fahr., 7 = 0-000288
64. The observations from which this result was obtained were very good, con-
sidering that the whole angle of deflection was less than 3°, and it may therefore be
worth examining the individual results for the highest and lowest temperature. The
whole number of results was 15, the mean difference, from the final result given
above, =0°000025, and the probable error of a single result was therefore about
0:000021.
The mean of 9 results for the mean temperature 49°°7 gave g = 0:000289
The mean GPG: ......0.6....-+.4 OE ie ote Gone hagee g = 0:000286
so that the temperature coefficient for this bar is constant within the ordinary tem-
peratures occurring during the observations in which it was employed.
xliv INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
Bifilar Magnet.
65. The temperature coefficient for this magnet was also determined by means
of hot and cold water experiments, Nov. 9 and 10, 1843. See page xli., Introduc-
tion, 1841-2, for the details. The whole number of results was 30: the mean gave
The correction for 1° Fahr., Q = 0:000294.
66. If the 27th and 28th results (counting from the top of the last column of
Table 19, p. xli., Introduction, 1841-2) be rejected, as it is believed that the great
difference of both from the mean was probably due to one error in reading, we find
the average difference of the 28 results from the mean = 0-000021, and the probable
error of a single result was therefore about 0-000017. | Combining the results from
high temperatures together, and similarly for those from low temperatures, we find
The mean of 15 results for the mean temperature 48°:0 gave Q = 0:000292
The meamjof 13> sw. x.0:).0-dessec set -desleve nd eee eee oh a Q = 0:000295
so that for the bifilar magnet, also, the temperature coefficient is constant within the
ordinary temperatures of 32° to 80° Fahr.
67. The correction for the expansion of the silver wires and brass grooved
wheel, =0°000010, being added to the value of Q above, we have
The temperature correction for 1° Fahr., from hot and cold water experiments, g = 0:000304.
68. As the observations in connection with the balance needle had shewn that
there might exist variations due to temperature, other than those due to the varia-
tion of the magnetic moment of the magnet, such as the varying elasticity of the
suspending wire of the bifilar magnet, the temperature coefficient was determined
in the following manner, which had at first been found to give consistent results for
the balance needle.
69. A series of days being selected in which the magnetic irregularities are
small, and in which the variations of temperature are as considerable as possible, if
we compare the mean instrumental readings for any two days, and if a R be the
difference in scale divisions, this difference is due to change of temperature of the
magnet, and to change of the horizontal component of the earth’s magnetism, let the
portion of change of reading due to the former = A, and to the latter = a X, so that
A. Ri Ac NEE
If the difference of the mean temperatures of the magnet for the same two days
be 47, then the correction for 1° of temperature in scale divisions
TEMPERATURE COEFFICIENT OF THE BIFILAR MAGNET. xlv
A
Bie
whence
», AR 4X
iaemea At
Let a series of such values be obtained by comparing the mean scale reading, and
mean temperature of the magnet for each day with those for each day following in
the period selected : if we consider the differences a ¢ positive, when the succeeding
day’s mean temperature is less than that for the preceding day, and sum the whole
number of differences for which a ¢ is positive,* then
STAR | raex
AIR F Sra
,
If we neglect the last member, the whole error of the determination of ¢ will
depend on the sum of variations of the mean horizontal force 2 4 X ; asin asufficient
number of determinations, it is probable that these variations will be as much posi-
tive as negative, and, therefore that the numerator will nearly vanish, the last mem-
ber may be neglected in the determination of gq’, and this with the more accuracy
the larger the sum of the differences of temperature = 4 ¢. Again, if the differences
for which a ¢ is negative are summed, we shall have
TAR 2AX
nate Age
,
2
The sign of the first member on the right remains as before, since a R also
changes sign. Reasoning as in the previous case, 3 a X may be supposed nearly
zero, and the last member of the equation negligible. If, however, the supposition
that the sign of A X varies positively and negatively with reference to the sign of
A t be inaccurate, it must be supposed either that the horizontal component remains
constant, and therefore, that A X = 0, or that it varies in one direction only, in-
creasing continuously, or diminishing continuously, throughout the period selected,
and, therefore, that the sign of 4 X is the same for both equations. In the latter
case, it is evident that by taking the mean of the values of ¢’ from the two equations,
the last members will nearly destroy each other. It has been supposed that the
variations of X are altogether independent of the variations of the temperature, a
supposition which is borne out by every method of examination of the results. The
details of aseries of comparisons are given, pages li., lii., and lii., Introduction, 1843,
from these it appears :
70. 1st, That the value of gq’ is the same, when a sufficient number of compari-
* If the scale readings increase with increasing horizontal force, A R will generally be negative
when A f is positive, and vice versa. The sign of A tis used as the argument, so that if A R be
positive when A ¢ is positive, that value of A R will be subtracted from the sum of differences 3 A R.
MAG. AND MET. OBS., 1845 anpD 1846. m
xlvi INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
sons have been obtained, whether it has been obtained from comparisons of daily
means, at 1, or 2, or 3, . . . . or 14 days’ interval.
71. 2d, That the value of g’ is the same, whether the differences of temperature
have been due to natural or artificial causes, and when the differences of temperature
of the magnet have had an opposite sign from those for the temperature of the ex-
ternal air.
72. From the second result, it follows, that the variations of the horizontal
component of the earth’s magnetism are wholly independent of the temperature of
the air, and from both results it appears probable that they are imdepereeay of the
temperature of the soil.*
73. The following Table contains the sums of differences of the daily mean
temperature of the bifilar magnet, and the value of ¢ which has resulted from each
series of comparisons. The series of comparisons for 1845 have been made since
the publication of the series for 1844, for the purpose of verifying the constancy of
the result.
TABLE 7.—Determinations of the Temperature Coefficient of the Bifilar Magnet.
Sum of =
Period. pif, | Value of
Temp. ad
Period.
1844. 2 Se. Div.
May 9—May 24] 320-6 2-22
May 29—June 28 | 1610-7 1-83
July 17—July 30 | 270-0 1-77
Sept. 2—Sept. 25 | 1164-4 1-96
Nov. 26—Dec. 13 833-3 1-99
1845.
Jan. 13—Feb. 12
Feb. 26—Mar. 28
June 2—July 2
Dec. 8—Dee: 31
The series of observations for 1844, giving each result an equal weight, give g = 1:95 se. div.
MORES 6 Sco si. |. ads Me TBAB, bacee- mihiccnn ch ER ads.
sjaie/is\n"=Isis o\siate lefelstata'=ie aisiefeiaimi€)s\<ie/s|e)al=isfain\elejn@ 1844, giving the results the weights DAZ, give A = 1:92
sje slelo.c)neleleieieje sie) sole/*leiate(ofel ste sfelels/x' sisal ain]s vieleiat= 1845, ---see esse et eee eee ceeeeeneeerseeeeeeteeeeeeee ener estes {= 1:95
Whether the results for each year have equal weights, or have weights depend-
ing on the sums of differences of the daily mean temperatures (2 A ¢), we find
g = 1:93 se. div.
The adopted value of the temperature coefficient of the bifilar magnet,
q’ = 1:90 se. div.
The value of one scale division in parts of force for the period of comparisons
(1844 and 1845), being & = 0:000140.
Whence, the correction for 1° Fahr., from comparisons of observations, is g = 0:000266.
* See foot-note, p. 395 of the volume for 1844.
TEMPERATURE COEFFICIENT OF THE BALANCE MAGNET. xlvi
74. The result from hot and cold water experiments is nearly } more. It ap-
pears, therefore, that the determination of the temperature coefficient, by removing
the magnet from its position in the instrument and varying its temperature by means
of hot and cold water, cannot be depended on. It appears also, that when a sufh-
cient number of observations is included, the method of comparison previously de-
scribed gives, under very different conditions, consistent, and, therefore, it is pro-
bable, accurate results.*
Balance Magnet.
75. The temperature coefficient of the balance magnet was determined by means
of hot and cold water experiments August 24, September 1 and 2, and November
13, 1843, and January 27, 1844. See pages xlii., xlil., and xliv., Introduction, 1841-2,
for the details. The mean of the whole observations, properly weighted, gave
q = 0:000073.
76. The only good series was that obtained January 27, 1844, which included
changes of temperature from 35° to 65° only ; the other series are too inaccurate to
be employed for the determination of the value of q for high and low temperatures ;
from series of comparisons of the usual observations of the balance it has been
found, however, that the value of gq’, the temperature correction for 1° Fahr. in mi-
crometer divisions, is the same for high and low temperatures, thus—
Mic. Div.
From 7 series of comparisons in 1844 and 1845, about the mean temperature 40°, ¢ = 8°33
ACT Oa), RETA, 5.0 or LANA Sl ahs. We arha tenn danke ohiee Sil ce vale ative eee wenengees 60°, 7 =8:30
As the first result is the mean of 7 values of q’, obtained from comparisons of
the mean readings of the balance magnetometer for about 170 days, in the months
of January, February, November, and December 1844 and 1845; and as the second
result is the mean of 8 values of q’, obtained from comparisons of the mean readings
of the balance magnetometer upon about 190 days in the months of May, June, July,
August, and September 1844 and 1845 ; it is extremely probable that the tempera-
ture coefficient for the balance magnetometer is constant for the ordinary tempera-
tures of observation.
77. As it was found impossible to determine & the value of one micrometer
division in parts of the whole vertical component, by means of the vertical vibra-
tions, the value of g obtained from hot and cold water experiments could not be em-
ployed, since the observations could not be reduced to parts of vertical force, nor
could the value of g be reduced to micrometer divisions. In consequence of this
* It should be remarked, that these conclusions do not depend wholly upon the results for the
Makerstoun instruments, their accuracy has been verified by an examination of the observations made
in other places.
xlviii_ INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
difficulty, the method already described for the bifilar magnetometer was first em-
ployed for the determination of g’ the temperature coefficient in micrometer divi-
sions: the details of several of these comparisons will be found, pages xlv., xlvi.,
xlvii., xlvili., and xlix., Introduction, 1843. It was found from these comparisons,
lst, That the value of ¢’, when a sufficient number of comparisons had been
obtained, was independent of the interval between the days compared.
2d, That the value of g’ remained the same after various adjustments of the
needle ; the vertical screw for adjusting the sensibility never having been touched.
3d, That the value of g’ has remained constant while the time of vibration ina
vertical plane has varied from upwards of 11° to less than 6°; from which result it
has been concluded that the value of & also has been constant.
4th, That the value of q’ is the same, whether the differences of temperature of
the magnet have been due to natural or artificial causes, and whether the differ-
ences of temperature of the magnet have had the same sign or an opposite sign from
those of the temperature of the air.
78. From the 1st and 4th conclusions, it follows that the variations of the ver-
tical component of the earth’s magnetism are independent of the temperature of the
air and of the temperature of the soil.*
79. The mean of all the results in the volume for 1843, Introduction, pages
xlvi. and xlviii., gave
g = 7:90 micrometer divisions ;
and adopting the value of &, obtained from deflections, No. 59,
q = 0:000079.
Which result is only d more than that obtained from the hot and cold water ex-
periments : it appears in the case of the Makerstoun instrument that the errors of
the usual methods are found chiefly in the determination of & ; this, however, is not
always the case.
The observations for 1843, 1844, 1845, and 1846, in micrometer divisions, have
been corrected by the value
g = 7:90 micrometer divisions.
80. Since this value was obtained, several other determinations have been made,
by comparisons of observations in 1844, 1845, and 1846; all the results obtained are
given in the Table below ; several of the results obtained more lately have been de-
duced from periods ill fitted to give a good value; the whole, however, have been
given in order to shew the amount of error that may be expected in using bad series.
In one or two of these cases the amount of disturbance has not been very consider-
able, but the greatest variations of the daily mean vertical force have happened to
“
* See foot-note, p. 395 of the volume for 1844.
TEMPERATURE COEFFICIENT OF THE BALANCE MAGNET. xlix
occur at the same time with the greatest variations of mean temperature ; it is
believed that it is to this cause chiefly that the differences of the results are to be
attributed.
TABLE 8.—Determinations of the Temperature Coefficient of the Balance Magnet.
Value of Pernod. Diff. Value of
1844. 2 Mic. Div.
Nov. 4—Nov. 30 | 1066-2
Dec. 2—Dec. 28 | 939-0
1845.
Jan. 6—Feb. 8 | 2086-3
Feb. 26—Mar. 28 | 1830-1
Apr. 10—May 10 | 1279-1
June 2—June 30 | 1551-6
July 7—Aug. 6 | 1069-8 | 10-01
Sept. 9—Oct. 13 | 1580-6
Dec. 11—Jan. 10 | 1585-2 10-17
1846.
Nov. 30—Dec. 26 | 1190-2
1843.
Jan. 16—Jan. 21
Jan. 23—Jan. 28
Jan. 30—Feb. 4
Feb. 6—Feb. 11
June 1—June 30
Sept. 6—Sept. 16
1844.
Jan, i—Jan. 26
Feb. 5—Mar. 6
May 9—May 24
May 29—June 29
July 4—Aug. 3
Aug. 4—Sept. 6
Giving the differences for all the series equal values, and dividing the sums of
differences of the daily means in micrometer divisions by the sums of differences of
the daily mean temperatures of the needle, we have
g = 8:23 mic. div. ;
but if the results from the bad series for July 7—August 6, 1845, and December
10, 1845—January 10, 1846, be rejected, the value would be
g = /09 mie: div:
If the whole series were properly weighted, it is believed that the resulting value
of qg would be less than 8:00 mic. div. The excellent series, November 30—De-
cember 26, 1846 (after an adjustment July 1846) gives
g = 7°12 mic. div.
The adopted value of the temperature coefficient for the balance magnet = 7:90 mic. div.
It is believed that this value, which has been used in correcting all the observations
since the commencement of 1843, is within one-tenth of a division of the truth.
81. The following matters should be attended to in determining the tempera-
ture coefficient by the previous method.
1st, The period selected should be free from considerable magnetic irregularities.
2d, There should be a considerable change of daily mean temperature, the tem-
perature at the beginning and end of the period being nearly the same.
3d, The smaller the duration of the period consistently with the 2d the better.
4th, It will be found best, in general, to correct the daily means at first by an
approximate coefficient, and
MAG. AND MET. OBS., 1845 AND 1846. n
] INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AnD 1846.
5th, To eliminate the secular change approximately, if it be considerable.
Both the latter methods were employed in many of the determinations given in
Table 9.
INCLINOMETER.
82. The dip instrument was made by the late Mr Roprnson of London. The
vertical circle is 92 inches in diameter ; it is divided to 10’, the graduations counting
from 0° on the horizontal to 90° on the vertical; 17 is estimated with the aid of
lenses attached to a glazed case ; the vertical circle turns with a copper framework
on a vertical axis, centred in a horizontal circle ; the latter is 6 inches in diameter,
is divided to 30’ and is read to 1’ by means of a vernier. A sliding framework
carrying Ys moves within that bearing the agate planes on which the axle of the
needle rests; the Ys serve to lift and lower the needle on the agates, but they have
been found to act very irregularly, at times giving the needle a pitch in a certain
direction. A level screwed to the basement plate indicates the horizontality of the
agates ; this was, however, also verified occasionally by means of a small level placed
upon them; it was found that the level varied according as the door of the case
inclosing the instrument was shut or open; it was, therefore, always tested with
the door shut, as it is during observations. The reading of the horizontal circle,
when the vertical circle is in the magnetic meridian, was obtained with the aid of
a horizontal needle, carried on a pivot whose arms rest on the agate planes. There
are two dipping needles, numbered 1 and 2, and one end of each needle is marked
A, the other end is marked B; all the marks are on one face of each needle. The
needle is observed in four positions with one end dipping, namely, with the marked
face of the needle on the same side as, and opposite to, the graduated face of the
circle, the latter being in the meridian, first to the east, and then to the west; as
each extremity of the needle is observed, there are thus eight readings obtained.
The poles being changed, and the other end dipping, other eight readings are similarly
obtained. The means of the two readings for each position are given in this volume.
In changing the poles, the needle was placed on a small wooden block having
a hole to receive the axle; it then received eight strokes on each face (as in the
method of double touch) from two magnets, each 9 inches long, 3 inch broad.
The inclinometer occupied a strong wooden pillar in the intensity house uncon-
nected with the floor. ”
83. Observations were made on April 18 and May 2, 1843, in different azi-
muths, in order to determine the correction due to the irregularity of the needle’s
axle, or perhaps to the presence of iron in the vertical circle ; these observations
have been already given (Table 21 and Table 22, Introduction, 1841-2.) The cor-
rection deduced was about — 11’ for needle No. 1. A short series of similar obser-
vations was made, May 10, 1845, the details of which will be found among the other
observations ; the following values of the magnetic dip are deduced from the incli-
nations 7 and 2’ of needle No. 2, observed in two planes at right angles to each other,
by the formula
<q
INCLINOMETER. li
Cot 76 = cot 2n + cot 27!
Azimuth, 0° 7 = 71° 26°75 Azimuth, 90° 7 = 89° 57°25 6= 71° 26-75
Me Sh 80° 7 = 73° 25°50 seseeseee 120° of = 80° 27°56 6= 71°° 7-73
SENSO? DODD |. i ihansesss 150° » = 73° 30°62 =k, 9:65
ron
S
[e}
=
|
The dip from the observations in the magnetic meridian differs considerably
from the values of @ obtained from the observations in other planes ; the latter agree
pretty well with those deduced from needle No. 1, April 18, 1843 (Introduction,
1841-42, Table 22, first series.) This coincidence of the results from two needles
seems to place the source of error in the metal of the instrument, rather than in the
axles of the needles.
March 31, 1846. The vertical circle of the inclinometcr was removed from
the instrument and placed horizontally, the dip needle, No. 1, was suspended by a
silk fibre within the circle, the needle and circle being in the same plane, the needle
was then vibrated horizontally, the zero of the graduations being placed in different
azimuths ; taking the zero on the right of the horizontal diameter (the circle being
in its usual vertical position) as the commencement of the graduations, and counting
downwards and onwards to 360, the following are the means for different positions
of about 80 vibrations (commencing with a semiarc of 18°, and ending with a semiare
of 6°) :-—
N. end of needle at graduation, 50° Mean time of one vibration, corrected for are, 6-257
Se Unis ve ini RRS a calcoe sn's es 20° Bee ate Pe ea ans mane ne cet ncn scviccinwannkebanenne™ 1GEDOD
Pn vials 2 ig Ea sy ped ve 350° Se Mea eA Sento ienshiddcawge<detecrscestee METH
Be eens corns pce MME en 2s eis om x 320° Le debs. ER CRCORE ECR Sse el REC oR ere Rone mem 510217 3
Pee anc 2s ie ss he Loe 290° eee, See Mecca sisenacseieicnsawes- «| GOR
Flac aes 3s (od Ms ne rnc 260° REE TER oh idows i osudvcestecssanGecasess. 11 G2TR
The time of vibration varies little with the exception of that for the first posi-
tion ; the last two means are for positions occupied by the needle in the observations
of inclination, given above.
84. The true dip, and the cause of the differences in different azimuths, is still
a question. No correction has been applied to the observations in this volume. The
difficulties noticed in connection with the lifter in the Introduction for 1843 were
experienced more or less in 1845 and 1846, but considerably less than in 1844.*
* Observations were made in the following manner for the determination of the magnetic dip
in February 1846. The dipping needle having been placed on its supports in the inclinometer, it was
defiected by a magnet placed at known distances, in order to determine the ratio of the magnetic
moment of the deflecting bar to the vertical component of the earth’s magnetism ; the moment of the
bar was obtained from observations of deflection and vibration for the absolute horizontal intensity,
whence the vertical component could be determined, and the dip from the ratio of the two com-
ponents. The advantage of this method over others, consists in the capability of using a powerful
deflecting bar whose moment can be determined with the accuracy of the observations for the hori-
zontal intensity,
hi INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 anp 1846.
BAROMETER.
85. The barometer is by NEwMAN. The tube is 0°552 inch in diameter; the
scale is attached to a brass rod, terminating in an ivory point, which at each ob-
servation is moved by means of an endless screw till it meets its image in the mer-
cury of the cistern; the cistern is about 3 inches in diameter ; the vernier professes
to read to 0:002 inch, and that 0-001 inch may be estimated, but the graduation is
so inexact as to give changes in error from 0-002 to 0-003 inch, when the reading is
made alternately at the two extremities of the vernier.
86. In 1841, the barometer was compared indirectly with the standard baro-
meters of the Royal Society of London, by means of one made by NEwmaw for the
Due of ARGYLE. The comparisons of the DuKE of ARGYLE’s barometer with the
readings from the flint and crown glass tubes of the Royal Society (both tubes being
connected with the same cistern) are given, Table 23, Introduction, 1841-2. They
are not consistent. A consistent series of comparisons of the Makerstoun barometer
with the DuxE of ARGYLE’s is given, Table 24, Introduction, 1841-2. The results
of these comparisons are
in.
DUKE of ARGYLE’S barometer minus Royal Society’s crown and flint glass, = + 0-009
Makerstoun barometer minus DUKE of ARGYLE’S, . ...... . =+0003
Makerstoun barometer minus Royal Society’s crown and flint glass, . . =+ 0-012
87. In July 1847, a series of comparisons was made by myself of a barometer
by TRouGuHToON, marked B, belonging to Sir THoMAs BRISBANE, with the flint-glass
barometer of the Royal Society of London. The same barometer (TRouGHTon B)
was a few days afterwards compared by myself with the Makerstoun standard baro-
meter: these comparisons are given, Tables 10 and 11.
TABLE 9.—Comparisons of the Barometer TRouGHTON “ B” with the Flint-Glass
Standard Barometer of the Royal Society of London, July 2, 1847.
Royal Society’s 3
Flint-Glass Standard. Broughton’ B.
Royal Society
Standard
—j
Corrected to minus
; Tempera- F Tempera- Temp. of Troughton “B.”
Height. fee! Height. face. Royal Aaetety
Standard.
in. ° in. eS in. in.
30-302 63-6 30-262 66-0 30-256 + 0-046
+304 63-9 -267 66-4 -261 043
-300 64-2 -266 66-8 +259 -041
+291 64-8 +254 65:8 -251 -040
«292 64-8 +255 66-2 +251 -041
64-5 +229
BAROMETER. hii
TABLE 10.—Comparisons of the Makerstoun Standard Barometer with the
Barometer TRoUGHTON “ B,” July 84—104, 1847.
Makerstoun Standard. Troughton “ B.”
Troughton “B”
minus
Corrected to Makerstoun
, Tempera- : Tempera- Temp. of i
Height. ture. Height. ture. Makerstoun nerd
Standard.
in. S wyres iS in. in.
29-722 68-7 29-682 73:0 29-671 — 0-051
29-717 66-4 29-667 66-8 29-666 -051
29.924 71-3 29-882 74-9 29-873 | -051
30-061 61-5 30-020 65-2 30-010 | -051
29-987 67-0 29-946 71-3 29-935 -052
From these comparisons we find
in.
TROUGHTON B minus Royal Society’s flint-glass, . . . . =—0-0417
Makerstoun standard minus Troughton B, . . . . . . =+ 0-0512
Makerstoun standard minus Royal Society’s flint-glass, . . = + 0:0095
In the comparisons made in 1841, the mean of both the crown and flint glass
tubes has been employed: making use of Tables 23 and 24, Introduction, 1841-2,
we find
in.
DuKE of ARGYLE’S barometer minus Royal Society’s flint-glass, . . = + 0:0055
Makerstoun standard barometer minus DUKE of ARGYLH’S, . . . =+ 0:0029
Makerstoun standard barometer minus Royal Society’s flint-glass, . =-+ 0:0084
The comparisons in 1841 and 1847, therefore, differ only one-thousandth of an
inch.
88. All the observations of the Makerstoun standard barometer are corrected
by—0-012 inch to the mean of the Royal Society’s flint and crown glass barometers ;
they are also corrected for temperature to 32° Fahr., by ScHUMACHER’S Tables, given
in the Report of the Committee of Physics of the Royal Society of London. The
cistern of the barometer is 213 feet above the mean level of the sea at Berwick-upon-
Tweed.
THERMOMETERS.
89. The dry and wet bulb thermometers aa are by ADIE and Son. The bulbs
bb are 0°3 inch in diameter, and tenths of a degree can be estimated with accuracy
on the scales aa; the thermometers are attached to a wooden slab c, fixed to the
MAG. AND MET. OBS. 1845 AND 1846. 0
liv INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AnD 1846.
moveable front d of the wooden case, 4 feet above the soil ; the bulbs project below
the wooden slab c, and as holes are cut in the wooden case behind them, they are
exposed to freely-circulating air. The wooden
case, which has slightly-projecting top and sides
at the front, and a double sloping back, revolves
on a post f, and can be turned from within the
Observatory by means of cords and pulleys g g.
When an observation is made, the case is turned
till the thermometers face the window h, being
9 inches distant from it ; after reading, which is
done through the glass (thus avoiding any error
due to proximity of the observer, or the light at
night), the case is again turned with the back
towards the window, or towards the wind if it
rain. It was found early in the summer of 1843,
that in spite of the precaution of turning the back of the case towards the sun
before 7" A.M. and after 5" p.M., if the sun shined brightly, the temperature indi-
cated by the thermometer was visibly increased. In all such cases, therefore, the
moveable front d was lifted off the case and suspended in the shade, at an equal
height from the soil, on the west or east wall of the Observatory, being kept apart
from it by projecting knobs. Observations at different times shewed, that, all
other things being equal, the temperature was the same in all the three positions,
but when the sun shined on the case, it might be one or two degrees less to the east
or west than to the north. The observations made to the east or west are indicated
in the column of differences by a cross, thus }, for the first observation after re-
moval from the case, and by a cross, thus |, for the last observation before replacing
the thermometers on the case.
90. It sometimes happens, when the air is very humid, during frost, and on
clear nights, especially when the temperature is falling, that the dry bulb thermo-
meter reads less than the wet bulb ;* when such is the case, the difference of the
readings of the two thermometers has not been given, and in the summations for
* This apparent anomaly in frosty nights, it is conceived, is due to the deposition of moisture
on the silk cover of the wet bulb, which is frozen as it is deposited, till it becomes a thickish coat
of silk and ice; the dry bulb receives, at the same time, a thin coat of moisture, and becomes a
more facile wet bulb, In clear, humid nights, without frost, nearly the same explanation will apply ;
the dry bulb will radiate its heat into space with more facility than the wet bulb. It might be
preferable, therefore, on these occasions, to make use of the readings of the wet bulb for the tem-
perature of the air, and of the readings of the dry bulb for the temperature of evaporation during
frosty nights; where, however, the differences of the readings may be considered due chiefly to the
different radiating powers of the two bulbs, the readings, perhaps, should be considered the same ;
this has been done in all cases in the present volume.
THERMOMETERS. lv
the abstracts of results, the reading of the wet bulb has been considered the same
as that of the dry bulb.
91. In January 1843, a series of comparisons of different thermometers, in water
of different temperatures, was made with a standard thermometer by Newman:
the results are given in the Introduction for 1843, Table 23, p. lvu. The readings
of the standard, and the dry and wet bulb thermometers, in a mixture of pounded
ice and water, at the time of the comparisons in 1843, and in 1845 and 1846, are as
follow :— :
Jan. 7, 1843. NmwMAn’s standard, 32°00. Dry bulb, 32°7. Wet bulb, 32°6
oe lo 0): ele yal Sa Mae Sha glo blac awe 32°65
Gb MSHI RO I ea eae lb Aa a i aaa te 82°°7
Dec itmrmrnmen arcati teh wir tire Ol ny Wiles. Bares Dike ENS. 32°-7
It appears, therefore, that the index errors of the dry bulb thermometer were
about two-tenths of a degree greater in 1845 and 1846 than in 1843, and the index
errors of the wet bulb, about one-tenth of a degree greater; making allowance for
this change in Table 23, Introduction for 1843, we obtain
TABLE 11.—Corrections of the Dry and Wet Bulb Thermometers to the
Temperature by NEwMAn’s Standard, in 1845 and 1846.
Corrections. Corrections.
Tempera- Tempera-
ture.
On December 18, 1846, the standard and dry and wet bulb thermometers were
compared in water :—
Standard, 58°8. Dry bulb, 59°-3. Wet bulb, 59°1.
Correcting the standard reading for its index error of 0°-1, the corrections for
the other thermometers near 60° are
Dry bulb — 0°°6. Wet bulb — 0°4.
The following corrections were obtained from comparisons with the standard in
the external atmosphere :—
1845. Jan. 30, The correction for the dry bulb thermometer at a temperature of 1°-5= —0°3.
1846. June 3. The correction for the dry bulb thermometer at a temperature of 82°5= — 0:15.
lvi INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 anp 1846.
The observations of the dry and wet bulb thermometers, given in this volume
are not corrected for the errors of the thermometers ; but the corrections have been
applied to the abstracts of results.
92. The maximum and minimum self-registering thermometers, on RUTHER-
FORD’s construction, were made by ADIE and Son; they were attached to a frame
fixed to the north side of the Observatory, about three feet from the ground, and
near the dry and wet bulb thermometers. A self-registering mercurial thermome-
ter, with a black bulb, by R. Aprz, of Liverpool, was placed, in the end of May
1844, within the enclosed space occupied by the Observatory rain-gauge, exposed
to the sun, for the purpose of obtaining the maximum amount of solar radiation ;
another self-registering alcohol thermometer, with black bulb, by the same maker,
was placed near the other in September 1844, with its bulb in the focus of a para-
bolic metallic reflector, for the purpose of obtaining the minimum of terrestrial
radiation. The observations of the self-registering thermometers have all been cor-
rected for the scale errors of the thermometers. The observations of the minimum
thermometer for the temperature in the shade are apparently in all cases from 1° to
2° less than the lowest temperature indicated by the dry bulb thermometer; the
difference, it is believed, is due to the greater exposure of the minimum thermo-
meter to radiation and deposition of dew.
93. Another thermometer was employed for the determination of the tempera-
ture of the water in two pump-wells, which are within about 200 yards of each
other ; the pumps are nearly on the same surface-level, the depth of the cottage-
well being 10 feet,—that of the garden-well 21 feet. On one occasion, it was found
that there was one foot of water in the cottage-well, and two feet of water in the
garden-well. In obtaining the temperature, the water was pumped till the reading
of the thermometer remained constant. All the observations have been corrected
for the scale error of the thermometer used.
ACTINOMETER.
94. The actinometer was made by STEVENSON of Edinburgh; it consists of a
hollow cylinder of glass filled with ammonio-sulphate of copper. One extremity of
the cylinder is joined to a thermometer tube, terminating in a hollow bulb; the
other extremity is cemented to a metallic cap, through which a screw, working in a
collar of leather, passes into the cylinder; a scale of 100 divisions is attached to
the thermometer tube; the cylinder and thermometer tube were inclosed in a maho-
gany box, open at one side; the compartment containing the cylinder filled with
the blue liquid is lined with black velvet, and is covered by a slip of plate-
glass. The dimensions were as follow:—Glass cylinder, 54 inches long; mean
external diameter, about 1:05 inch; the mercury, filling four inches of the thermo-
meter tube, weighed 16-7 grains; the length of 100 divisions of the scale are equal
ACTINOMETER. lv
to 5°51 inches. The cylinder of this instrument was destroyed in the winter of
1846-7, by the freezing of the liquid. The previous dimensions of the cylinder
belonging to the actinometer, from June 1844 till February 1847, are considered
‘to be very near the truth; they are, however, only given from the dimensions of
the cylinder in the actinometer at present, which is of the same size. The ac-
tinometer was placed in a small revolving frame during observations after June
1844, by means of which the face of the actinonieter was always presented to the
perpendicular incidence of the sun’s rays; at the end of the same table upon which
the revolving frame was placed, a double wooden screen was hung by cords passing
over pulleys; the instrument could be shaded or exposed to the sun by the observer
instantaneously.
95. In making an observation, the cylinder was exposed to the sun’s rays at
a perpendicular incidence for 60 seconds, the scale readings of the fluid in the tube
being observed at the beginning and end of the minute. A screen was then inter-
posed for one minute, or for one minute and a half; if for one minute only, the last
observation in the sun was also noted as the first in the shade ; if for one minute and
a half, the first reading in the shade was not made till the instrument was shaded
half a minute. At the end of 60 seconds the scale reading was again observed, and
the screen was removed, that reading being also noted as the first in the sun. When
the liquid mounted near the top of the thermometer tube, the screw was withdrawn
nearly half a revolution, when the liquid fell to near the bottom of the tube. The
times were noted from a box-chronometer by Dent, No. 1665.
96. The following are the results of series of observations for the amount of
heat stopped by the plate-glass, marked A, used in the instrument after June
1844 :—
Se. Div.
1846. June 1410" 16™ a.m. Mean time. Glass plate A on; mean effect of sun in 60°= 9°47
BREN IM cd<fesa,shahs, Die osorahc 9 0! sheie, aiprs ister ns Gibrst ft. Settee ees eh. Pardes = 12:04
Be NE stalk ss oipis ad oe, soatagtele munya eae Mi a cedy cays ah dn oy 0 Vey Ades = 9-70
Mean effect of sun in 608, glass plate A on = 9°58
Proportion of whole heat stopped by the glass plate A, =0°204.
Se. Div.
1846. June 3* 9°51™ a.m. Meantime. Glass plate A on; mean effect of sun in 608= 9:29
CNRS NSE, Uh A, OE ON OT pie atikabae yt a IR Ce He = 12°83
BTM) F.) Vile sis. Net Lies dhik's UemewNy ch GONE HA gee teltteae ee = 9°82
MR ei areie Ssh2in jopandd-tieraicta la stdabe ec ciek GEE LRA RRR =12°88
PE ea ccnfa. sf as arog oninioprmeech Movies OI pn hala wr aepaeaeser PEM aI. = 10°33
Mean effect of sun in 605, glass plate A off =12°85
i, li ener on == isi
Proportion of whole heat stopped by glass plate A, = 0°237.
MAG. AND MET. OBS. 1845 AND 1846. p
lviii INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
Giving the last result two values, we find, from both determinations,
Proportion of whole heat stopped by glass plate A, =0°226.
97. Besides the breaking of the cylinders by the freezing of the liquid, the
instrument has been rendered useless for good experiments several times by the
deposition of a brownish oily sediment, which finds its way into the thermometer
tube, and this though the liquid had been long prepared by the maker. When this
deposition of sediment occurred, the instrument was sent to the maker to be
cleaned ; the observations, therefore, in this volume, are nearly unaffected by it.
RAIN-GAUGES.
98. The Observatory rain-guage is placed in a space, enclosed by a paling on
the top of the Observatory hill, with a good exposure on all sides. The funnel-mouth
is 6:1 inches in diameter, 8 inches above the soil, and 218 feet above the level of
the sea. The quantity of rain is measured at noon by pouring it into a glass tube,
graduated with reference to the aperture of the funnel.
99. The monthly results of two other gauges are given in the abstracts. One
is placed on the top of the greenhouse roof, 680 feet NNE. of the Observatory
gauge ; the funnel-mouth is 6°7 inches in diameter, it is connected with a graduated
tube within the greenhouse, it is 18 feet from the ground, and 192 feet above the
levelofthesea. This gauge is sheltered to the E. and NE. by trees, and its indica-
tions are therefore less trustworthy, especially during easterly winds ; the amount of
rain received in the funnel is also affected by the gusts of wind deflected from the
sloping roof. The other gauge is in the middle of the Makerstoun garden, with a
good exposure ; the funnel-mouth is 6:7 inches in diameter, is 61 feet above the
soil, 171 feet above the level of the sea, and about 620 feet N by E. of the Obser-
vatory gauge. The funnel is connected with a graduated tube. The greenhouse
and garden gauges were observed by Mr MaccGAtt, the head gardener, the former
daily, the latter monthly.
VANES AND ANEMOMETER.
100. The vane is placed on the north wall of the Observatory, and by means
of a rod and geering-wheels it indicates the direction of the wind on a dial-plate
within the building ; this vane (occupying the position W’ in the plan, Plate I.) was
found too heavy for light winds, and the directions of these were estimated for some
time from a ribbon-vane. On November 13, 1844, a vane was formed of four large
feathers from a turkey’s tail, this vane was mounted on along and light fir-rod, which
passed through the roof of the Observatory, and had an index attached to its lower
extremity, which indicated the direction of the wind on a compass fixed to the ceil-
VANES AND ANEMOMETER. lix
ing of the Observatory. This vane indicated the direction of the lightest winds,
and the direction of the wind was generally taken from it after November 13, 1844.
On December 4, 1846, a light frame covered with oiled silk was substituted for the
turkey feathers. The direction of the wind is indicated in this volume by the num-
ber of the point of the compass, reckoning N = 0, E = 8, S=16, W = 24.
101. The anemometer, the invention of Mr R. ADIE, of Liverpool, was made by
Messrs ADIE and Son, of Edinburgh; it occupies the north-east corner of the Obser-
vatory. This instrument will be best under-
stood by a reference to the annexed figure :
a@ is a cistern containing water to the level 5,
c being a turn-cock for letting the water off
to the exact level, and da glass-gauge to shew
when the water becomes too low, from eva-
poration or otherwise ; an inverted vessel ¢
is suspended in the water by a cord passing
over the wheel f, whose axle rests on friction-
rollers at g and h; 21s a spiral, which has a
cord wrapped onit carrying a weight k, which
balances the vessel e; J is a dial, graduated
\ on the face near the circumference ; m an in-
: dex, attached to the common axle of the
| wheel and spiral ; a loose index under the
j index m, which the latter carries forward by
means of a projecting pin near the extre-
mity ; oa tube passing under the cistern a,
which, entering the bottom, proceeds upwards
within the vessel ¢ till its open extremity is
above the level of the water in a neck of the
Se
ae
woe
pos vessel ¢; the other end of the tube o is six
ae
ny
is
k feet above the outer wall of the Observatory,
roa
aed
where it is capped by a vane p; at the top
of the tube o three brass rods are joined,
i}
4) asta teeerinkn tia
L, which carry a small tube in which a pinwithin
cae
.
ee eet
the top piece q rests or turns ; the tube o is
oe a double at the top, containing between the
\/ tubes a quantity of mercury to the level r,
the continuation of the cylindrical body of
the vane enters the mercury, and a double portion s acts as an outer cover to the mer-
cury cistern ; tis an aperture, 2 inches square. When the wind blows, this aperture is
presented to it, the wind then presses on the column of air within the tube o (being
prevented from escaping under the vane by the mercury), and ultimately on the top
lx INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
surface of the vessel e, forcing the latter up, turning the axle carrying the index m,
which carries before it the index n, leaving it at its farthest excursion. The dial is
graduated as follows :—The surface of the top of the vessel e on which the wind
presses is 78 square inches, therefore a pressure of 1 lb. on this surface is equivalent
to 144 Ib. on a square foot. Different weights are suspended on the wheel f, acting
oppositely to the vessel e, and the position of the index for each weight shews the
pressure on a square foot of surface equal to the weight suspended multiplied by the
above ratio. The spiral, on which the weight & acts, is the involute of a circle whose
. R ' ‘ ‘ ’
radius 7 = ae where R is the radius of the wheel f, and 2 7 is the circumference
to radius of one, if the vessel e were homogeneous throughout its depth, the equal in-
crements of motion in the index would correspond to equal increments of pressure.*
102. The instrument is observed in the following manner :—About 2™ before
the observation hour the pressure shewn by the index n is registered as the maxi-
mum pressure ; this index is then put back to zero, and from 7™ to 10™ afterwards,
the position to which it has again been carried by the index m is noted as the pre-
sent pressure ; the index n is then set to zero, and a similar double observation
made at the next observation hour. It is conceived that this instrument can be de-
pended on for the purpose of determining the laws of variation of the pressure of
wind ; for absolute results, an integrating instrument is essential.
STATE OF THE SKY.
103. The extent of sky clouded is estimated ; the whole sky covered with clouds
being noted as 10, and the complete absence of clouds as zero. The motions of the
clouds are determined as follows :—A well-marked portion of cloud which passes,
or has passed, through the zenith, is watched till the direction is found in which it
seems to run down, or parallel to, one corner of the Observatory ; the walls of the
Observatory are in the meridian and prime vertical, and the points of the compass,
reckoning from each corner as a centre, are marked upon the paling surrounding
the Observatory ; the observer, therefore, sees at once the direction of motion of the
cloud on the paling ; when a portion of cloud cannot be seen which has passed, or is
* The application of the involute of the circle as the spiral is due, I believe, to Professor Forszs.
It is easily shewn that if the vessel e be homogeneous, w being the weight of a ring whose depth is one
inch, P the pressure which the wind exerts on the top of e diminishing its weight, @ the corresponding
are through which the circumference of the wheel f moves (or the length of cord wrapped on the wheel),
W the weight of the counterpoise &, and o the specific gravity of the material (zinc) of which ¢ is
formed, then
Ey egal
~~
a constant ratio,
Crock, &c. Ixi
about to pass, through the zenith, it is generally easy to determine very nearly the
vanishing point of the motion of any portion of cloud, by watching its progress for a
short period ; there can be no hesitation in saying, that the motions of the upper
currents of air thus observed, are better determined than the motion of the lower
or surface current observed from the vane. The directions of motion of the clouds
in three strata (scud, including cumuli; cirro-stratus, including cirro-cumuli; and
cirri), are given in numbers of points of the compass, reckoning N = 0, E = 8,
S=16, W=24. The nomenclature adopted is that of Mr Howarp, with certain
combinations, which are, in general, sufficiently descriptive.
104. Full sunshine is indicated in the column of meteorological remarks by the
symbol © ; when the sun shone through a cloud so as to project a distinct shadow,
it is indicated by the symbol © ; when the cloud was very thin, this is indicated
occasionally by the symbol © ; and when the sun’s disc only was visible, the symbol
@ is used; similar symbols are used for the moon. The heaviness of the rain fall-
ing at the time of observation has been estimated, and is noted in the column of
meteorological remarks, upon the supposition that the heaviest fall is 10: thus,
rain’, is rather heavy rain ; rain’, is the heaviest observed in 1844; rain, is just
perceptible ; and rain®”, is a light, spitting, Scotch mist.
Cock, &c.
105. The mean time clock is by Dent of London; itis kept at Gottingen mean
time by comparisons with the transit clocks in the Astronomical Observatory, the
errors of which are determined by Sir THoMAs BRISBANE, by myself, or by Mr
Weisu. The rate of the clock is kept small.
106. A fire-place was formed in the space marked F (Plate I.), in October
1845, the east anteroom being employed afterwards as a computing room; the
chimney was formed of fire-brick tubing (which it was found could not appreciably
affect the positions of the magnets), the grate and fire-crons were of copper.
DESCRIPTION OF THE TABLES OF OBSERVATIONS.
107. Hourly and Daily Observations of Magnetometers, 1845 and 1846, pages
1-68 and 288-323.
The first column contains the Gottingen mean solar time, astronomical reckon-
ing, of the observations of the declination magnetometer. Gottingen time is 49™ 50°
in advance of Makerstoun time. The second column gives the absolute westerly
declination in degrees, minutes, and decimals of a minute, deduced as described,
INiow! 174
The third column contains the observations of the bifilar magnetometer in scale
divisions, corrected for temperature to 26° Fahr. (see Nos. 69 and 73); increasing
numbers indicate increasing force. The bifilar is observed 2™ after the declination.
MAG. AND MET. OBS. 1845 AND 1846. q
lxii INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
The fourth column contains the temperature of the bifilar magnet in degrees of
Fahrenheit.
The fifth column gives the readings of the balance magnetometer in micrometer
divisions, corrected for temperature to 26° Fahr. (see No. 79); increasing numbers
indicate increasing force. The balance is observed 3™ after the declination.
The sixth column contains the temperature of the balance magnet in degrees of
Fahrenheit.
The seventh column contains the observer’s initial (see No. 5).
At the foot of each page the time is given during which the declination mag-
net has remained untouched, or the amount of torsion found in the suspension thread
when that has been determined (see No. 12). The value, k, of one scale division of
the bifilar magnetometer, the whole horizontal component being unity (see No. 40),
and the value, k, of one micrometer division of the balance magnetometer, the
whole vertical component being unity (see No. 60), are also given.
108. Term-Day Observations of Magnetometers, 1845, pages 72-87.
The first column contains the minute of Gottingen mean time of the declina-
tion observations, the hour being given in the middle of each triplet of columns.
The first column of each triplet contains the absolute westerly declination ; the
second and third columns contain the bifilar and balance magnetometer readings,
reduced to the temperature of 26° Fahr., as in the hourly observations. The
temperatures of the magnets at the commencement of each hour will be found
with the hourly observations, and the observer’s initial for each hour are in the same
place. The corrections for temperature are applied to the observations in the fol-
lowing manner :—The correction to the first observation of each hour being applied
for the known temperature of each magnet, the temperature is supposed to change
uniformly throughout the hour, and the corrections for the intermediate observations
are interpolated between the initial corrections.
109. Extra Observations of Magnetometers, 1845 and 1846, pages 90-117 and
326-341.
These observations are made generally during magnetic disturbances. The
same remarks apply with reference to temperature corrections, &c., as for the term-
day observations, excepting that the Gottingen day and hour are given in the first
column, and the minute is given for the observations of each instrument. Notes
upon the Aurore boreales observed are given, with the times of the phenomena in
Gottingen mean time, pages 118-127 and 342-343.
110. Observations of Magnetic Dip, and for the Absolute Horizontal Intensity.
See Nos. 19, &c., 82, and Addendum to Introduction.
111. Hourly and Daily Meteorological Observations, 1845 and 1846, pages 136-
272 and 354-409,
The first column contains the day and hour, Gottingen mean time, of the obser-
vations, all of which are made within a few minutes of the hour, and generally in
DESCRIPTION OF THE TABLES. lxili
the order noted below. When the observation has been made more than 4™ too
late, the minute of observation is noted at the foot of. the page ; when less than 4™
too late, the true minute (for the declination observation) will be found in the first
column of the hourly and daily magnetical observations. The Gottingen mean time
is 49™ 50° in advance of the Makerstoun time. The second column gives the height
of the barometer, corrected to 32° Fahr. (see No. 88). The barometer is generally
observed between the observations of the declination and bifilar magnetometers, that
is, about 70° after the hour.
The third and fourth columns give the observed readings of the dry and wet
bulb thermometers in degrees of Fahrenheit, wncorrected for scale errors (see No. 91),
and the fifth column gives the difference of the observed readings of the two thermo-
meters. The dry and wet bulb thermometers are generally read about 14™ before
the hour. The sixth column contains the maximum pressure of wind on a square
foot of surface which has occurred since the previous observation (see No. 102); this
maximum is generally noted, and the index set back 2™ or 1™ before the hour.
The seventh column contains the maximum pressure of wind on a square foot
of surface within from 8™ to 10™ at the time of observation, namely, from 2™ or 1™
before the hour till 6™ or 9™ after the hour.
The eighth column contains the direction of the wind read from the dial-plate
of the vane, and given in numbers of points of the compass, reckoning N =0, E = 8,
S = 16, W = 24. )
The ninth column gives the directions of motion of three strata of clouds in
numbers of points of the compass, namely, of scud, cirro-stratus, and cirrus ; thus,
June 134 20" 1845, the surface wind, by the vane, blowing from 8 (E.), the scud
was moving from 4 (NE.), the cirro-cumulo-stratus was moving from 20 (SW.), and
the cirri were moving from 21 (SW by W.) (see No. 103).
The tenth column contains the estimated extent of sky clouded, the whole hemi-
sphere covered being 10.
The eleventh column contains the species of clouds observed, with other meteoro-
logical notes (see Nos. 103 and 104).
The observer’s initial will be found at the corresponding hour of hourly mag-
netical observations.
112. Daily Meteorological Observations, 1845 and 1846, pages 274-276 and
412-413.
The first column contains the civil day of observation, and the first column of
each division of columns thereafter contains the minimum temperature noted from the
self-registering thermometer about 10" a.m. ; the second column contains the maxi-
mum temperature noted from the self-registering thermometer at 5” p.M., the third
and fourth columns contain the minimum and maximum of radiation (see No. 92);
and the fifth column contains the amount of rain found at noon in the Observatory
lxiv INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AnD 1846.
rain-gauge. In pages 276 and 420, the temperature of water in two pump-wells
is given (see No. 93.)
113. Extra Meteorological Observations, 1845 and 1846, pages 277-286 and
414-420.
The first column of observations of the actinometer contains the Makerstoun
mean time of the first reading given in the third column, the reading in the fourth
column being made 60 seconds after; the second column tells whether both of these
observations have been made with the actinometer in the sun or in the shade; the
fifth column gives the change of reading in 60°; the sixth column contains the effect
of the sun in changing the reading; the seventh column contains the mean effect
for a group; and the eighth column contains the sun’s altitude for the mean time
corresponding to the middle of each group.
The readings of the barometer (corrected to 32° Fahr.) and of the dry and wet bulb
thermometers, together with meteorological remarks, are given in the foot-notes ;
other observations will be found in their proper places among the hourly observations.
114. Additional meteorological notes are given after the observations of the
actinometer ; these consist of observations of shooting stars, thunder-storms, dates
of flowering of plants, times of the commencement of the morning-song of birds, &c.
115. The Abstracts of Results, will be found in the next volume forming Part
II. of Vol. XIX. of the Edinburgh Transactions.
These Tables have appended or prefixed to them all requisite explanations,
together with remarks on the conclusions deduced. In all cases where any of the
ordinary hourly or daily observations had been omitted, the mean of the previous
and succeeding observations has been substituted in the summations.
116. Ourves of Term-Day Observations.
The term-day observations, as corrected, pages 72-89, having been projected
and drawn with the greatest accuracy by Mr WELSH on lithographed curve paper,
they have been transferred by the anastatic process, in 12 Plates, given at the end
of the volume.
( Ixv )
ADDENDUM.
117. The process of making and reducing the observations for the absolute hori-
zontal intensity made according to the method of Gauss with a 15-inch deflecting
bar, has been already described (Introduction, Unifilar Magnetometer), and the ob-
servations of deflection and vibration will be found, p. 133-4, 347-8. The results
are as follows :—
TABLE 12.—Results of the Observations for the Absolute Horizontal Intensity,
made with the 15-inch deflecting bar, in 1845 and 1846.
a Mean E X Reduced
Date. Pairs of Distances. Log. x Log. m X. Xe ent ; Stee ene
for 1845.
1845. ee Feet. d Sc. div.
Dec. 29 | 5-083 and 9-7083] 0-454510 | 1:515975 | 3-3942
5.250 --- 9-83 0-454.094 3-3958 |>3-3921 548-9 33869
5:5 10-25 0-456497 3-3864 .
Dec. 30 | 5-0 6-5 0-455291 1-513839 | 3-3828
5-0 7-0 0-455826 33807
5-5 7-0 0-455640 3-3815 |} 3-3812 | 539-1 3:3807
5:5 7-5 0:455766 3-3809
6:0 7-5 0-456009 3-3800
1846.
Feb. 16 | 5-0 6-5 0-455309 | 1-516163 | 3-3918 |)
5:0 7-0 0:454785 3-3938
5:5 7-0 0:454664 3-3943 |} 3-3929 | 553-2 3-3866
5:5 7-5 0-455078 3:3927
6:0 8-0 0-455281 3:3919
April 14 | 5.0 6-5 0-453826 | 1-514334 | 3-3904
5-0 6:0 0-453431 3-3920 |+ 3-3904 | 562-3 3-3800
5-5 6-5 0-454274 3-3887
118. The value of m X, for December 30, is deduced from the 2d series of vibra-
tions made upon that day, as there was obviously some error involved in the Ist
series ; for a similar reason, the deflection at the distance of 8 feet has not been
employed.
The mean value of X from the previous Table reduced to the mean
biti amepterenmtor USAGI! lee sense, dete sosieseearacs spo slepicnusgiqtnc tes cna = 3'38355
The mean value of X from the observations for 1844, reduced to the mean
Wiel seem OLA i. Wiuptncens snerustivenek ss en die nhenn ane gem aial tua ee + = 338005
Whence the secular change from 1844 to 1845 in parts of X, ........ ...... = 000104
From the readings of the bifilar magnetometer the secular change 1844
SE ag es ance dais celesil sain ine iia die diana adr ala = 0:00142
MAG. AND MET, OBS. 1845 anp 1846. r
lxvi INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 anp 1846.
The observations, therefore, for the absolute value of X in 1844 and 1845-6,
shew rather less secular change than is indicated by the bifilar magnetometer. See
Introduction for 1844, p. xxvii.
119. In addition to these observations, others were made in 1846 and 1847,
according to Dr Lamont’s modification, with small magnets and instruments con-
structed by Mr Jonrs of London. The observations of deflections will be found,
p- 349-351; and the results for the observations of vibration, p. 352.
120. The determinations of the torsion, induction, and temperature coefficients,
were performed in a similar manner to those for the large bar. As the observations
for the induction and temperature coefficients may have some value independently
of their direct application, they will be given somewhat at length.
121. Observations of deflection were made June 23, 1846 and January 2, 1847,
with a six-inch circle magnetometer (belonging to Professor ForBEs), and May 31,
June 15, September 11, and September 13, 1847, with a nine-inch circle magnet-
ometer belonging to Sir THomMAs BrisBANE. The observations for the induction
coefficients were made with the nine-inch circle, fitted with a bifilar torsion circle
and magnet with mirror parallel to its axis (lent by Mr Jongs), and in a manner
precisely similar to those for the large bar described, Introduction, No. 26. The
following table contains a specimen of the results :—
TABLE 13,—Fifth series of Observations for the Induction Coefficient at Makerstoun,
of the Makerstoun Collimator Deflection Magnet, September 15, 1847.
sas Interpolated 3
iar Bifilar Reading, Deflection Sum of prone Val 3m
Reading. Deflector * | Deflections. : alue of m
Deflector. & Deflections.
Away.
So. Diy. Se. Div. Se. Diy. Se. Div. Se. Div.
Away. 188-35
N. Pole N. 10-67 188-11 177-44 ;
N. PoleS. | 363-65 | 187-87 | 175.78 | 393-22 oN
Away. 187-62
N. Pole N. 10-32 187-43 177-11
N. Pole S. | 362-90 | 187-24 | 175.66 | 99277 ee
Away. 187-05
N. Pole N. 9-80 187-02 177-22
N. Poles. | 36257 | 18699 | 175.58 | 39280 an 0,00 FGF
Away. 186-95
N. Pole N. 9-65 186-80 177-15
N.PoleS. | 362-42 | 186.65 | 175-77 | 992-92 eo |
Away. 186-50
N. Pole N. 9-25 186-43 177-18 ‘
N. Pole S. | 361-90 | 186.36 | 175-54 | 20242 “Aes eget
Away. 186-30
N. Pole N. 9-25 186-33 177-08
N. Poles. | 362-00 | 186-36 | 175-64 | 922-72 es eee
Away. 186-40
The angle of torsion of the bifilar was, v = 53° 45’.
The arc value of one scale division, = 1’:025.
i.
ADDENDUM. Ixvil
122. The following are the final results for all the bars operated on* :—
Makerstoun 3°65-inch collimator named M, unmarked, Ist series, 6 determinations, 0:00390
eee et, Ge OT OLIB Cd Bo aivline Ge os BOR wertes, 4 ook... ocd heashen nO 00465
Ree ed eee ne rere SLE ENE gLnaES Aa teiald BOONE Motel 3d series, 4 ................... 0:00403
ae) eee eh eee Dn eA Tn ertese ane eee tee. = ORO
DUIS CICN.O Gece ne. 0:00435
ee ee er er era)
ce nee ca aeees IR ROOAL ads RO. OF Mean of all determinations, 0:00417
Prof. BACHE’S 3°65-inch collimator, named B, marked 4, series of 4 determinations, 0:00627
Prof. ForBEs’s 3:65-inch solid bar, named F, unmarked, ................cceceseceseeeues 0:00569
123. In the observations for the temperature coefficients, the water was con-
tained in a small wooden vessel fixed upon the deflecting rod of the Makerstoun
theodolite (unifilar, or nine-inch circle) magnetometer; the temperature was ob-
tained from two thermometers with bulbs of different dimensions, one placed at each
end of the immersed magnet, the mean of both indications being employed. The
following table contains the-results for 5 bars :—
TABLE 14.—Observations for the Temperature Coefficients of different Magnets,
September 8, 1847.
THERMOMETERS. | Upifilar [Declination| pigjay Unifilar Temperature
Scale Scale | Gorrected,| Circle Reading | Qocsicient.
Reading. | Reading. Reduced.
Se. Div. Sc. Div. a ,
182-42 6-30 236 54-79
200-20 . . 192 54-47
193-65 . : 48-03 .000088
185-52 : : 39-25 000089
192-47 : : 46-15 ;
204-85 . : 58-80 000098
198-20 . : 51-93
-000090
190-10 . . 43-40
; -000087
196-95 . . 50-43 .000098
207-05 . : 60-63
227-8 : : 17-75
7 7 0-000094
221-00 : : 10-53
‘ -000080
214-05 . : 3-25
; -000083
220-25 : : 9-63
-000100
229-30 . . 18-86
-000095
222-97 . . 12-25 000088
215-00 : 3-93
96-00 : 26-73
e : a 0-000098
304-15 : 34-79
-000110
311-55 . 42-45
-000103
304-00 . 4 . 34-65 000094
297-50 . 27-67
171-47 | 12: Ca a nee
195-75 | 12. B00 caagaa
220-40 | 12- 68-29
336-00 | 11. 66820! elogabid
320-05 | 11- 5078 6. saggnee
303-90 | 11. 34.26
0:000088
h.
0
1
1
1
1
2
2
2
2
2
5
5
5
5
5
5
5
6
6
6
6
6
6
6
6
7
7
7
* Each determination, it will be seen from Table 18, commences with the deflecting bar having
the same end to the north ; this should have been avoided, since, in the event of increase of tempe-
lxviii INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
124. From these we find for
Professor BACHE’S bar, named ) 63°-9 to 90°3 ¢g=0:000095 ie 5 rh
i) Guarkedi4. | 381 to 63°9 g=0-000089 { Variation of g for 25° Fahr. =
Professor BACHE’S bar, named ) 65°-4 to 89°:8 g=0-000096
B—, unmarked, 39°8 to 65°°4 g=0°000084
Sir THoMAS BrISBANE’S bar, ) 64°7 to 89°°6 g=0:000106
named M, unmarked, ------ 39°8 to 64°7 g=0:000096 { pynd
Professor FoRBES’s bar, named | 64°:8 to 88°:2 g=0-000295
F, unmarked, 39°:5 to 64°:8 g=0-000316
Sir THOMAS BRISBANE’S bar, | 67°'8 to 94°:1 g =0-000200
marked L293, a cspcne ..... | 38°8 to 67°°8 g=0-000184
Ce i ee i ed
eee Peet ree wee rene tees eee eeeeeee ——
sete ewes ee ences
125. For these magnets, therefore, the temperature coefficient varies from 1
8 :
to J, of its mean value from the mean temperature of 50° to that of 75°, the co-
elficiort being greater at high temperatures than at low temperatures. A similar
result was obtained by Mr CurisTIE long ago,* and lately by Mr Atry and Colonel
SaBinE. This difference has not been found to exist for the large variation magnets
(see Introduction, p. xliv.).
126. The following are the results of series of observations for the temperature
coefficients of different magnets.
TABLE 15.—Results of Observations for the Temperature Coefficients of different
Magnets, the Temperature Rising and Falling, made 1843-7.
Temperature .
Pp Difference
Description of Magnet. gene: pe i ing
—_ _——— minus
q: q: Falling.
Nov. 9, 1843] Bifilar Magnet (15-inch) 0-000290 | 0-000298 | + 0.000008
11, 1843 | Deflection Magnet (15-inch) 0-000278 | 0-000296
Jan. 27, 1844| Balance Magnet (12-inch, very ee 0-000067 | 0-000079
June 30, 1846 | 3-65-inch Magnet, named F. --.---+2+--.ee0+0+
May 21, 1847] 3-65-inch Magnet, unmarked
0-000280 | 0-000289
0-:000311 | 0-000301
0000408 | 0:000395
0-000747 | 0-000745
0-000264 | 0-000278
0-000210 | 0-000212
0-000323 | 0-000333
0:000100 | 0.000121
0-000091 | 0-000091
0-000089 | 0.000092 /|+ 0-000003
0-000098 | 0-000104 |+ 0.000006
3-inch Magnet, marked S. 43
3-inch Magnet, marked S. 29
3-inch Magnet, hollow, marked B. 6.
5-inch Magnet, hollow, marked I. 23. --.----
« 3-65-inch Magnet, named F.
May 28, 1847 | 3-65-inch Collimator, named M.
Sept. 8, 1847| 3-65 Collimator Magnet, marked 4, named B.
3-65 Collimator Magnet, unmarked, named B.—
3-65 Collimator Magnet, named M.
NWRANAAMOND
The observations in some instances are too few, and with too large probable
errors to be sufficient for the determination of the difference of the coefficient, for
rature in handling during the removal of the bar, an error would be introduced always of the same
sign if the north end has always the same position at the beginning.
* Philosophical Transactions, 1825, p. 63.
—"
ADDENDUM. . lxix
ascending and for descending temperatures ; on the whole, however, they indicate
that the coefficient deduced from such rapid changes is greater for the same mean
temperature (about 65°), when the temperature is increasing than when it is
diminishing. The greater part of the observations were made without any inter-
mediate temperature, so that there are not sufficient data to determine whether the
difference is greater at high mean temperatures than at low mean temperatures.
Mr S. H. Curistiz found that the temperature coefficient increases with the
temperature, the increase becoming more rapid for temperatures above 80°; and
that beyond 100°, a portion of the magnetism is permanently lost.* The previous
results seem to indicate that (in such experiments at least), a portion of the magnet-
ism is lost even at the lower temperatures for certain kinds of steel.+
The observations of deflection with the circle magnetometers have been reduced
by the formula (see Introduction, p. xx.)
qT Er sine 2 5
D hiatt e
where
aay embs Sin U, 1 +k (ba — 4)
Oe Ne dm 1l—g (tz —¢t)
1 — — sin uw,
ae oe
u, being the observed deflection corrected for declination change (see column 9, De-
flection, p. 349-351).
The observations of June 23, 1846, and of January 2, 1847, were made with
Professor ForBEs’ 6-inch circle magnetometer ; the remaining observations were made
with Sir Tuomas BrisBANE’s instrument, the dimensions of the magnets employed
will be found, p. 351: the values of one scale division for the suspended magnets
are as follow :—
June 23, 1846. Jan. 2, 1847. May 31 and June 15, 1847. Sept. 11 and 13, 1847.
0”:995 0-995 1025 2-017
The solid bars are about 0°3 inch diameter, and the collimator bars about 0:4
inch diameter.
All the observations, excepting those of September 11 and 13, were reduced by
the method of least squares, the equations of condition having the form
1 al “Tanne
Lt geoR age Qi gr sinew =0
* Philosophical Transactions, 1825, p. 63.
+ The previous results seem to indicate that while it will always be necessary to determine the
temperature coefficient for the magnetometers from the observations with the magnet in its box,
yet it will be desirable to determine it also by the usual method of hot and cold water experiments.
MAG. AND MET. oBs. 1845 anp 1846. s
lxx InTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846.
The observations of September 11 and 13, made at three distances only, were
reduced by the formula
m Aja+A,B+ Ary
es a+B+y
where
oer ee 2_ 72 1 1 i
SL SB 83 gi wy Boa yl so bdeeee aed Boe:
Ys ar ? B = os a a? 7 GL rei a ry” 03 rs
Ay = ry sin UW, Ag =3 re sin U2, As =i r,° sin Uz
The observations of vibration were made in the usual manner, the following is
a specimen of the details :—
Table 16. Observations for the Time of Vibration of the Collimating Deflector M,
June 15, 1847.
North End of Magnet moving Hast. North End of Magnet moving West.
Time of
Transit. : Transit.
Vibrations.
. s. m. s.
21-7 | 25 24-9
52-0 24-7
22-5 24-7
53-0 24-7
23-3 24-5
54-0 24-7
24.4 24-8
55-0 24-7
25-5 24-8
56:0 24-6
The observations of vibration were reduced by the formula already given (In-
troduction, p. xxi). The formula for the time of vibration with the ring (Introduc-
tion, p. xx11*), having the more convenient form
’
a
7 Ss 2 ese Sob 2s tnaataet
T=T, (-+--3 ) (1-4/5 =% + @/e=4+ 0)
The values of K the moment of inertia have been deduced by the formule al-
ready given, pages xxi and xxiv. The times of vibration and the dimensions of the
rings are given, page 352.
The following are the results of the observations with the circle magnetometers :--
* See Corrigenda.
ADDENDUM. Ixxi
Table 17. Results of Observations for the Absolute Horizontal Intensity made
with Circle Magnetometers in 1846 and 1847.
Result. X at the
Magnet- igo Pp. Q. Log m X. Mean
ometer.
Bifilar | Bifilar
Reading. | for 1845.
6-in. Circle. 9-1603750 |+0-016708 | —0-003344 | 0-2146240 |3-3661 | 568-7 | 3.3528
6-in. Circle. 9-1564802 |—0-005080 | + 0-002391 | 0-2107538 | 3-3662 | 560-9 | 3.3564
9-in. Circle. 9-1810278 |+0-000655 | —0-000600 | 0-2420858 | 3-3926 | 574-8 | 3.3764
9-in. Circle. 9-1731457 |+0-000172 | —0-000526 | 0-2344397 | 3-3935 | 576-7 | 3.3765]
9-in. Circle. 9-1732756 |+0-000899 | — 0-000729 | 0-2310949 |3-3799 | 545-0 | 3.3774]
9-in. Circle. 9-0952645 | —0-002388 | + 0-000387 | 0-1518040 | 3-3750 | 524-9 | 3-3816
The resulting values of X, by Professor ForBEs’ instrument, differ considerably
from those by Sir THoMAS BRISBANE’s, while the latter agree much better with the
results obtained with the 15-inch bars, see Table 12.
Makerstoun, March 1849.
oy eit | vs ; Fons :
AL eA ie at — — ee ee =,
f ; r ,
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HOURLY OBSERVATIONS
MAGNETOMETERS.
eee
MAKERSTOUN OBSERVATORY,
1845.
MAG. AND MET. oBs. 1845.
HovurLy OBSERVATIONS OF MAGNETOMETERS, J ANUARY @—6, 1845.
Gottingen BIFILAR. BALANCE. + | Gottingen BIFILAR. BALANCE. 3 =
Mean Time || Duciina- > = | Mean Time || Decrina- >
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 3 ‘3 | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| $2
tion Obs. rected. | meter. || rected. | meter. 5 a tion Obs. || rected. | meter. rected. | meter. S =
d. are aah ey Se. Div. Mie. Div. = eae fis Ts 35 Reare ae Se. Div. fe Mic. Div. "eg ma
013 O |] 25 11-51]) 528-6) 37-9 || 616-3] 38-0 | B 221 O| 25 13-05}| 539-9} 34-1 || 607-7| 34-5 | B
14 0 12-93 || 529-9| 37-7 || 616-9| 37-7 || B 22 0 14-23 |] 538-7] 34-1 || 605-2| 34-5 | H
5) 0 11-17 || 532-8| 37-4 || 615-3) 37-3 B 23 0 14-80 || 538-0} 34-1 | 606-0| 34-4 | H
16 Ot 08-05 || 526-3} 37-1 || 603-4) 37-1 B oe 10) 30 16-73 || 534-:7| 34-1 || 605-8} 34-5 | H
7 =) 11-91 || 533-1} 36-9 || 610-4| 36-8 B i 0 16-86 || 535-6| 34-2 || 604-1; 34-7 | H
sy) 12-40 |] 533-6] 36-7 || 613-8] 35-6 || B 2-0 16-12 || 638-1] 34-3 || 607-7| 348 | H
19 O 13-36 || 533-1] 36-3 || 617-0) 36-2 || W ay 0) 15-31 || 536-1| 34-4 |) 609-4} 34.9 | H
20 O 12-76 || 533-2] 36-0 || 615-9| 35-8 || W 4 0 15-05 |) 536-2} 34-6 || 610-9] 35-1 / H
Pal (0) 12-48 | 535-0) 35-7 || 617-5| 35-3 || H 5 0 14-13 | 537-8} 34-8 || 613-0] 35-4 || H
22, 0 13-36 || 533-5] 35-4 || 614-0} 34-9 || W 6 0 14-03 |} 539-1] 35-0 || 610-9| 35-7 | W
Zo 14:06 || 531-4] 35-1 612-7| 34-7 | W 7 #0 13-59 || 539-9| 35-2 || 611-4] 36-0 | W
i 0) 10 14-91 || 529-8} 34-9 | 611-7} 34-4 || W Se0 13-76 || 538-8] 35-4 || 611-2] 36-1 || W
1 0 16:10 || 526-9} 34-7 || 612-1| 34-4 || H 9 0 13-72 | 537-9] 35-6 || 612-2] 36-3 || W
7) 17-76 || 528-6} 34-6 || 621-1] 34-4 || W 10 0O 13-25 | 538-1] 35-7 || 611-9| 36-4 | W
3a) 10) 16-97 || 526-2) 34-5 || 633-1] 34-4 || W ith 0) 13-17 | 536-0| 35-8 || 611-7] 36-4 / B
4 0 12-08 || 528-7} 34-4 || 643-2| 34-3 || W L2e 0 13-12|| 536-7| 35-8 || 609-2] 36-4 | B
5.6 (0 12-20 || 537-1] 34-3 || 640-3] 34-3 || W |
610 14-44 || 533-7] 34-3 | 633-8] 34-5 B 13 0 || 25 12-82] 534-9] 35-9 || 607-7] 36-4 || B
7 Ot 12-67 || 531-9| 34-3 || 631-9| 34-5 H 14 0 11-69 | 535-2| 35-9 || 605-8} 36-4 | B
8 0 11-34 |) 536-2} 34-3 || 626-5| 34-6 || H 15 0 11-37 | 539-9| 35-9 || 593-5| 36-3 B
9 0 12-96 || 536-2) 34-3 || 621-2] 34-7 || H 16 0O 12:02] 535-6] 35-8 || 598-8} 36-3 B
10 0O 08-19 || 537-4} 34-3 || 620-7| 34-7 B 17.0 12-69 | 537-2| 35-8 || 598-5] 36-2 B
iO 11-61 || 532-9} 34-3 || 619-1] 34-7 || H 18 140 13-12 | 537-6] 35-8 || 599-1] 36-2 B
12550 11-39 || 531-2} 34-3 || 614-6] 34-7 | H 19 0 13-03 || 537-3| 35-7 || 600-0] 36-1 || W
20 0 13-74 || 536-5] 35-7 || 600-4] 36-0 | W
13 0 | 25 14-41 ]} 529-7| 34-3 || 614-5] 34-7 || H 21 0 13-27 || 537-9| 35-6 || 598-1] 35-9 | H
14 0 13-59 || 531-2} 34-3 || 611-1] 34-6 || H 220 13-02 || 538-2} 35-5 || 596-4| 35-8 WwW
15 0 12-92 || 530-9} 34-3 || 610-8) 34-6 || H 2B O 13-64 || 538-7] 35-5 || 594-0} 35-8 | WwW
16 0 15-07 || 533-0} 34-3 || 611-8] 34-7 || H 4 0 0 14-37 || 539-3| 35-5 || 594-2] 35-9 | W
Li 0 17-33 || 532-3] 34-3 || 610-6| 34-7 || H eit) 15-11} 539-1] 35-5 || 592-5] 35-9 | H
18 0 14-30 || 535-3| 34-3 || 609-2) 34-7 | H Fhe 8) 14-57 || 538-9] 35-6 || 599-0} 36-0 | W
19 0 13-74 || 539-8] 34-3 || 608-5| 34-7 B 3, 0 13-72 || 536-5| 35-7 || 600-2} 36-2 | H
20) 0 13-14 || 537-9| 34-2 || 610-4] 34-6 B 4 0 14-35 || 537-2] 35-8 || 606-3} 36-4 | W
21 5 14-26 || 532-4| 34-1 || 612-2] 34-5 || W 2) 40 14-06 || 537-3] 35-9 || 604-7| 36-6 | W
22 0 12-42 || 537-6] 34-1 || 610-8] 34-4 B 6 0 14-06 || 538-0| 36-1 || 605-4] 36-8 | B
23 O 13-91 || 536-1] 34-0 || 610-4| 34-3 || W 7 #0 13-99 || 539-6| 36-3 || 605-1] 37-0 B
P) (0) 10} 15-20 || 533-C} 34-0 || 609-2] 34.3 || W 3 0 14-20 || 540-1] 36-6 || 605-5} 37-2 B
1 0 16-21 || 531-8| 34-0 || 608-2} 34.4 || W 90 13-47 | 539-0| 36-8 || 605-8} 37-5 B
2 0 16-60 || 532-6} 34-0 || 612-8] 34.4 || W 10 0O 13-23 || 540-1] 37-0 || 606-1} 37:8 B
3 40 15-86 || 539-1} 34-1 || 617-5) 34-5 || W 10 13-97 || 537-5| 37-3 || 607-5} 338-1 H
4 0 14-71 || 532-8} 34-3 || 620-4| 34-7 || W 12 0 13-66 || 538-2| 37-7 || 609-0} 38-5 || H
Bye) 13-17 || 531-1] 34-4 || 621-9] 34.9 B
6 O 10-43 |} 535-4] 34-5 || 620-4] 35-0 || H 5 13 0 | 25 14-17|| 537-7] 44-8 || 609-2] 45-4 B
if @ 13-49 || 540-4] 34-6 || 619-6] 35-1 H 14 0 14-03 || 539-1| 44-9 || 604-4) 45-5 B
Sao 13-94 || 538-7] 34-7 || 617-3] 35-2 || H 15 O 14-33 | 539-6] 44-9 || 601-7| 45-6 B
9 0 13-16 | 535-7| 34-7 || 620-5] 35-2 | H 16 0 14-17 | 539-9| 45-0 || 598-7| 45-7 | B
10 0O 06-68 || 529-6| 34-7 || 632-5] 35-2 || H 17 40 13-86 | 540-1] 45-1 || 596-7| 45-8 B
iO 13-05 || 536-0} 34-7 || 621-5) 35-1 || W 18 0 13:37 | 540-9] 45-3 || 594-9] 45-9_, B
1210 13-09 || 535-8} 34-7 || 617-6] 35-1 || W 19 O 13-12|| 539-7| 45-4 || 594-4] 46.0 | H
20 0 13-32 | 539-2] 45-6 || 595-3] 46-2 | H
13 O || 25 15-76] 534-5| 34-7 || 610-2} 35-0 || W By 30 13-77 || 538-3| 45-7 || 595.4| 46-3 W
14 0 14-58 || 534-1] 34-6 || 607-4] 35-0 || W | 22 0 14-38 || 540-6| 45-8 || 590-7] 46-3 | H
Hay 0) 13-27 || 534-3] 34-6 |) 608-0] 34-9 || W 231 0 15-38] 541-5} 45-8 || 590-7] 46-3 | H
16 0O 13-43 || 536-1] 34-5 || 607-0) 34-8 || W 6 0 O 15-74 || 541-7] 45-8 || 592-5] 46-3 | H
7 @ 13-19 || 536-1] 34-4 || 607-0] 34-7 || W 1 0 15-44 || 543-7] 45-8 || 595-7| 46-3 || H
18 0 13-49 || 537-3] 34-3 ||-606-9| 34-6 | W 2 0 13-93 | 541-9] 45-8 || 599-3] 46-2 | H
19 O 13-16 || 537-8| 34-2 || 607-9| 34-6 || H a 0 13-99 | 540-8| 45-8 || 600-4) 46-2 | H
20 O 13-10!! 536-9} 34-1 || 610-5] 34-5 || H 4 0 14-57 || 539-1| 45-7 || 600-7] 46-1 | H
DECLINATION. Magnet untouched, Dec. 30¢ 1844—Feb. 54 1845.
BIFILAR. Observed 2™ after the Declination, s—0-000140. BALANCE. Observed 3™ after the Declination, s—0-000010.
+ Extra Observations made.
Gottingen
Mean Time
of Declina-
tion Obs.
eooo co.cc
HovurLy OBSERVATIONS OF MAGNETOMETERS, J ANUARY 6—10, 1845.
DECLINA-
TION.
25 14-73
14-46
14-46
14-55
14.53
13-84
13-93
14-30
13.34
13-88 |
13-43 |
12-16 |
11-66
12-78
13-14
13-46
13-83
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
eocooococooooooeoocooeocooococe|e|scsd
14-92
15-79
16-15
15-5]
14.33
14-87
15-41
16-65
16-10
14:44
13-19
14-15
13-96
08-92
13-96
14-50
14-62
14-77
14-85
14-48
14-17
13-66
14-33
17-60
17-54
17-61
15-12
14-71
14-68
13-66
14-50
15:09
14-46
14.40
14-44
13-86
13-79
14-06
12-72
BIFILAR.
Cor-
rected.
Se. Div.
539-4
540-7
541-2
538-4
041-8
540-6
539-2
541-1
543-2
540-3
540-4
539-6
541-2
539-3
539-6
540-8
540-3
539-0
537-0
Cor-
rected.
Thermo-
meter.
Mie. Div.
599-1
597-2
595-1
45-6
45-5
45:3
598-0
602.2
602-0
602-3
602-7
45-0
44-8
44-4
44-0
603-1
598-1
595-3
589-1
590-0
589-1
589-4
590-9
588-7
586-7
592-3
595-7
595-0
597-7
598-9
599-8
600-7
599-1
602-6
608-8
614-6
615-7
607-5
596-9
599-7
604-4
602-4
600-5
598-1
597-4
596-6
596-5
597-2
593-1
598-6
604-2
603-2
605-9
607-8
607-2
605-5
603-1
601-1
599-0
596-2
593-7
593-9
596-1
38:8
BALANCE.
Gottingen
Mean Time
of Declina-
tion Obs.
Thermo-
meter.
Observer’s
Initial.
46-0
45-7
45-4
45:0
44-6
44.0
43-5
+
Addn motte dssaas dguouwu ns |
SS ee
10
Soro ero e. So oS S'S
=
cooocooscoceoec$o
40:3
40-3
40-2
40-0
39-7
39-1
38-8
WHER SeSeesensesesrsesentntrees gaoass
ooooocoecocso
DECLINA-
TION.
25 09-77
11-66
11:71
12-75
12-45
11-93
13-81
14-41
14-77
15-67
17-98
16-46
19-89
22.37
21-90
20-42
15-47
16-43
12-93
06-59
00-27
04-14
56-61
06-70
45-27
04-95
| 55-47
06-09
10-90
12-48
14-46
14-50
15-85
16-08
15-92
16-41
15-45
13-59
14.67
14-46
14-94
16-06
10-92
09-74
13-61
13-66
12-73
25 15-71
12-69
12-01
14-33
14-46
15-85
15-29
15-79
44-54
BIFILAR.
Cor- |Thermo-
rected. | meter.
Se. Div. 3
535-0] 38-6
536-7| 38-3
538-7 | 38-0
541:5| 37-7
545-7 | 37-4
542-3 | 37-1
541-:7| 36-9
542-0} 36-7
539-5
540-3
538:7
538-1
546-9
533-0
532-7
534-5
536-9
537-6
535-4
525-0
558-8
499-7
443-0
438-3
543-6
479-2
445-4
500-3
524-1
522-9
551-5
529-7
532-7
535-1
534-3
534-1
538-5
538-8
534-8
535-8
536-2
535-7
537-2
518-7
537-3
527-6
531-4
532-8
537-9
527-6
528-3
532-7
535-7
535-8
539-0
539-7
41-2
41-6
41-9
42-1
42:3
BALANCE,
Cor-
rected.
Mie. Div.
600-3
596-2
596-7
592-3
584-4
083-8
Thermo-
meter,
38:5
38-1
37:8
37-5
37-2
36-8
36-6
36-5
36-3
35:9
35-8
35-7
36-0
36:5
37-2
37-8
38-3
38-8
39-6
39-2
38-9
38-7
38-5
38-4
43-3
Observer’s
Initial.
5 a El a GE Ee |
SSMEtme tees ee erm esas
43-4
BIFILAR.
Observed 2™ after the Declination, s—0:000140.
DECLINATION.
BALANCE.
{+ Extra Observations made.
Magnet untouched, Dec. 304 1844—Feb. 52 1845.
Observed 3™ after the Declination, k=0°000010.
Gottingen
Mean Time
of Declina-
tion Obs.
ooococoeoocooe coc os
13
oo oc oo oo oo oo Oo Oo 'oo oS oc Co o oo
cocooocooocococecqocec]e
BIFILAR.
Hourly OBSERVATIONS OF MAGNETOMETERS, JANUARY 10—16, 1845.
DECLINA-
TION.
° ,
25 15-14
16-62 |
17-10
16-66
16-60
16-13
14-78
14-73
13-86
14:78
07-24
14:53
14-17
14-35
14-11
13-56
25 17-20
14-80
13-05
15-61
21-91
17-26
14-71
15-61
16-05
16-92
16-68
17:53
18-13
17-15
15-24
15-61
14-77
13-83
13-96
12.95
14.24
13-36
12.53
13-52
25 14:15
14-06
14-33
14-24
15-17
14-24
13-79
14-28
14-50
15-62
18.43
18-45
19-58
18-03
15-17
14:58
BIFILAR. BALANCE,
Cor- |Thermo-|| Cor- |Thermo-)
rected. | meter. || rected. | meter.
Sc. Div. co Mie. Div. oi
538-2} 42-6 || 599-8] 43-5
536:6| 42-7 || 599-2| 43-5
536-7 | 42-7 || 599-0) 43-5
534:9| 42-7 || 601-3] 43-5
534-1} 42-8 601-2} 43.7
538-2) 43-0 || 605-9} 44.0
535:3| 43-4 || 614-8} 44.5
536:5| 43-7 || 617-0| 44-7
534-6| 43-8 || 621-9} 44.7
535-2| 43-8 || 620-2| 44.7
538:4| 43-7 || 619-3) 44.4
5317 | 43-6 613-2] 44-2
538-0} 43-3 603-0] 43-8
536:7| 43-1 600-3} 43-4
535-9} 42-8 || 601-2} 43.0
534-4| 42-6 || 603-3] 42.5
535-4| 37-9 || 577-5) 37-5
531-3) 37-7 || 591-5| 37.2
530-8} 37-3 595-9! 36-8
528-8| 36-9 || 600-2} 36.4
522-3| 36-6 || 595-8] 36-1
533-9| 36-3 580-4} 35-9
536:3| 36-1 595-1} 35-7
538-0] 35-9 || 598-5} 35.4
536-6| 35-7 || 601-6| 35.2
534-3] 35-4 || 603-0! 34.8
528-5} 35-2 || 608-0) 34.8
530-1} 35-1 606-0} 34.8
532-0} 35-0 || 608-3} 35-0
535-9| 35-0 || 610-9} 35.0
530-6| 35-0 || 618-2] 35.2
538-5] 35-1 611-0} 35-3
538-7| 35-2 611-1} 35-7
538-6} 35-4 || 609-7| 35-9
538-1| 35-6 || 608-9| 36-2
535:6| 35-8 || 609-2| 36-4
535-7| 35-9 || 604-9] 36.5
538-4| 36-1 600-7| 36-6
537-9] 36-2 || 599-4} 36-8
538-5 | 36-3 596-8} 37-1
538-1} 36-5 || 596-4| 37-2
537-5| 36-7 || 597-1| 37-4
538-7| 36-8 || 595-5| 37-4
539:5| 36-8 595-4] 37-5
539-1} 36-9 || 594-4] 37-6
540-5] 37-0 || 593-9| 37-7
541-7| 37-1 593-1| 37-8
539-8| 37-2 || 593-6] 37-9
537-8| 37-4 596-7} 38-1
532-1] 37-6 || 599-2] 38-2
527-1| 37-7 598-8} 38-3
535:0| 37-8 598-1} 38-5
533-7| 38-0 || 597-1] 38-7
539-9| 38-2 || 593-2] 38-9
539-4| 38-4 || 593-3] 39-0
542-4| 38-6 596:3! 39-2
DECLINATION.
Observer’s
Initial.
Conmhinndadadadae |
SSSSSSSP SST PR SSeeer errr reer seeeeas
Gottingen
Mean Time
of Declina-
tion Obs.
d.
14
Soro Sore fo oi8
+
15
ooocoeoococooocoococooococoooco
++
© © © S'S ©:-S:0 oS cc C Oo SC 6: SC o.o C:.6:. 0 S
DECLINA-
TION.
25 15-49
14-84
14-75
14-38
12-72
12-75
11-17
09-76
25 16-48
12-98
12-18
11-72
12-65
13-07
14-24
14-64
14-80
14-57
14-94
16-39
17-42
17-19
16-06
14.57
14-64
13-90
14-17
12-09
13-91
14-20
02-77
12-62
25 14-64
14-60
14-55
14-11
14-20
14:53
14-87
14-10
13-47
13-49
15-01
17-20
16-68
19-17
17-67
17-33
15-81
14-60
13-83
13-49
13-37
13-39
13-47
13-46
BIFILAR.
Cor-
rected.
Se. Div.
534-4
534-1
539-3
539-7
540-3
540-6 |
544-9
534-5
537-2
533-5
534-5
536-0
542-5
541-3
539-9
542-4
539-5
534-2
527-9
534-1
534-6
536-7
539-2
539-4
540-4
540-3
540-1
540-8
539-2
539-7
546-4
533-4
535-4
534-0
535-1
535-7
539-2 |
540:3
539-0
539-8
536:8
537-5
535-5
536-5
531-3
535-2
535-4
535-9
538-0
539-4
539-9
539-5
539-8
538-2
534-1
534-2
Thermo-
meter,
BALANCE.
Cor- |Thermo-
rected. | meter.
Mie. Div. E
601-8} 39-5
607-3| 39-7
605-7| 39-9
602-5| 40-0
601-8} 40-1
598-1] 40-1
576-4} 40-1
572-1| 40-1
40-1
40:1
40-0
40-0
39-9
39-8
39-7
39-7
39-5
39-4
39-3
39-4
39-5
39-9
40-2
40-7
40-9
41-0
41-1
40-9
570-3
577-7
582-2
586-9
583-9
583-1
587-0
585-3
588.2
590-8
595-1
593-0
588-4
588-8
589-1
591-4
589-7
593-0
593-1
592-0
593-2
591-0
582-8
576-2
40:3
40-0
39-6
566-6
574-2
580-5
583-1
583-3
584-5
587-1
388-4
592-7
596-1
595-6
592-6
593-5
593-6
598-5
596-8
597-4
597-5
40-7 |
597-3
597-6
596-2
596-1
598-8
600-1
Observer’s
Initial.
Mada dcgh enemies se Soo oo oi bt |
Observed 2™ after the Declination, =0'000140.
BALANCE.
+ Extra Observations made.
Magnet untouched, Dec. 304 1844—Feb. 54 1845.
Observed 3” after the Declination, k=0:000010.
HovurLy OBSERVATIONS OF MAGNETOMETERS, JANUARY 16—22, 1845. 5
Gottingen BIFILAR. BALANCE.
Mean Time || DEcLINA-
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. || rected. | meter. || rected. | meter.
Gottingen BIFILAR. BALANCE,
NMegieiimne || DECLINA- |---| —~COYS
of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter.
Observer’s
Initial.
Observer’s
Initial.
2 if Se. Div. Mic. Div. 2
25 13-36 || 529-7 . 603-5| 33-7
13-83 || 534-6 3 589-1] 33-7
13-36 || 536-2 : 594-7
13-94 || 541-1 . 593-6
14-10|| 541-6 . 594-2
13-39 || 544-0 . 593-6
18-30 |) 540-8 3: 596-5
15-31 || 544-2 . 583-1
14-71 || 541-2 . 592-5
15-41 || 540-9 : 593-2
16-05 || 537-2 . 596-1
16-55 || 535-6 : 596-3
17-17) 535-4 . 599-3
16:99 || 537-3 . 599-3
16-25 |) 540-7 . 598-8
15-25 || 537-7 : 597-9
15-39 || 543-2 . 592-1
14-85 || 543-1 : 590-6
14-91 || 540-8 . 592-0
12-02 || 530-5 : 605-1
11-54 || 530-8 . 608-2
537-1 . 601-1
540-8 : 593-4
538-4 : 588-3
CT AakY Se. Div. © Mic. Div. ©
25 15-83) 531-5| 34-8 || 504-1] 34:3
17-49 || 530-2 : 522.4} 34-0
20:00 || 522-7 : 542-0} 33-8
22-25 || 529-1 . 555-2
22-25 || 530-0 3: 564-6
24:99 || 535-4 : 585:9
23-65 || 531-4 E 621-3
18-52 || 530-8 . 675°7
16-68 || 531-6) 35. 642-7
17-70 || 530-8 . 624-2
16:01 | 535-6 . 606-1
11-19 || 522.5 . 621-1
13-12 || 521-7 . 607-0
09-12 || 532-4 . 586-6
12-06 || 531-9 . 584-8
13-83 || 537-8 575:8
ecoooocos
=
Soo ooo oo Some Sree wis
15-44 || 536-7 574-6
15-01 |) 535-9 . 579-6
14-13 || 536-3 . 581-3
14-78 || 537-4 : 580-0
14-53 || 539-0} 35- 576-6
19-69 || 539-3 -3 || 569-3
13-67 || 538-6 . 555-1
14:53 || 538-8 . 567-7
15-52 || 537-1 . 571-4
16-65 || 541-3 572:8
16-38 || 539-2} 35. 579-3
16-10}| 536-1 ‘ 587-9
540-7 : 588-0
535-4 . 588-1
535-1 : 596'3
535-4 . 591-6
536-9 . 593-0
13-96 || 538-9 . 590-0
14-26 || 535-4 : 590-6
533-7 }. 602.2
13-67 || 534-8 . 589-6
14-11 || 534-1 . 588-4
09-39 || 537-2 . 580-4
11-93 || 537-9 . 563-3
woocdooocoecocococoococoe
—
537-3 ; 587-4
537-7 q 585-1
536-9 : 584-8
534-1 : 580-4
537:8 : 578-1
542-2 : 578-2
536-4 : 583-0
540-9 : 582-0
543-3 . 582-1
532-9 : 583-3
532°3 : 588-3
532-3 . 584-8
533-5 : 584-4
527-7 . 585-3
17-34 || 537-1 . 589-6
16-15 || 536-5 . 591-6
15-11 |) 538-1 . 592-6
14-33 || 539-5 . 591-9
14-11 || 540-2 . 590-7
13-64 || 541-0 : 588-4
13-63 || 540-4 : 585:5
13-43 |) 539-3 . 586-7
13-70 || 539-4 . 586-1
13-69 || 539-9 584-4
eoqooo oqo oo Co oc oo ooo oC oo oo ole >
12-70|) 531-4] 36. 572-9
14-78 || 535-1 : 574-5
10-87 || 534-2 . 072-9
13-83 || 535-7 . 571-7
11-24]| 538-1 9 572-1
13-90 || 539-2 . 571-3
14-50 || 539-6 . 574-0
14-43 || 543-0 : 573-7
14-13 || 522-4 . 571-5
16:30 |} 523-0 : 574-5
16-95 || 522-9 . 579°7
16-86 || 538-3 . 585-4
16-63 || 542-3 . 583-7
17-07 || 544-5 . 580-7
16:01 || 535-1 . 592-9 :
15-85 || 537-8! 40-5 || 596-1) 41-8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
44-83 || 493-5 399-8
54-79 || 512-4 . 363-2
03:50 || 423-4 . 198-8
04-31 |) 537-8 . 305-3
06-88 || 539-8} 35. 330-0
13-72 || 543°6| 35- 385-3
17-22 || 545.9 . 436-4
19-59 || 535-7| 35-0 || 476-1
——
SSOmHeOee Saree re Wwe See eer WeOnnnmhddddwdddoddmen |
7 we
DHn Wms sss Ser Se womnnmhddddadddy |
ooooocooococcooocoso
eo Soo 'S Sei
DECLINATION. Magnet untouched, Dec. 304 1844—Feb. 54 1845.
BIFILAR. Observed 2™ after the Declination, =0:000140. BALANCE. Observed 3™ after the Declination, s=0-000010.
+ Extra Observations made.
MAG. AND MET. oss. 1845. a
HourLy OBSERVATIONS OF MAGNETOMETERS, JANUARY 22—27, 1845.
Gottingen BIFILAR. BALANCE. ‘ | Gottingen BIFILAR. BaLANCE. = =
Mean Time || DEctina- |||," & | Mean Time || Decrina- = aes
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|) 3°2 | of Declina- TION. Cor- |Thermo-| Cor- |Thermo-|| 2’E
tion Obs. rected. | meter. || rected. | meter. || S~ | tion Obs. rected. | meter. || rected. | meter. || 5“
d. i an peter t ge Se. Div. 2 Mice. Div. : dy hs. “ane = , Se. Div. = Mic Div. a
292 5 O| 25 16-72|| 540-3; 41-1 590-6} 42.2 | H 24 13 oT 25 07-49 || 519-9} 43-0 || 600-7 W
6 0 16-16 || 541-2] 41-3 || 591-1] 42-4 | W 14 ot 15-34} 529-1] 42-7 || 572-5 WwW
Ta 16-86 || 539-4) 41-6 || 592-4] 42-5 || W 15 Ot 04-29 || 530-4] 42-5 || 549-6 WwW
8 0 15-67 || 541-4| 41-7 || 594-4] 42-4 || W 16 O 13-59 || 531-9| 42-1 583-6 W
9 0 11-44 || 540-8] 41-7 || 604-8) 42-4 || W ihrem 19) 12-36 || 532-3] 41-8 || 593-6 W
10 0O 14-77 || 536-0} 41-7 || 604-9] 42-5 B 18 0 13-02 || 536-7} 41-6 || 591-9 WwW
Lo 13-84 || 539-3| 41-8 || 602-9} 42-8 B 19) +0 12-89 || 538-8} 41-2 || 587-6 B
12 0 14-18 || 558-4) 41-9 || 573-8} 43-0 B 20:0 18-03 || 538-5| 40-9 || 584-7 B
215 40 17-09 || 538-1} 40-8 | 581-1 H
13 O |] 25 12-29} 532-6] 42-0 || 579-9| 43-2 D 22y, 00) 18-90 || 542-7| 40-6 || 578-0 H
14 0 12:90 || 535-6} 42-2 |) 580-3} 43-3 D 20 17-09 || 532-5) 40-6 || 590-6 H
15) 10 11-03 || 532-8} 42-3 || 583-3] 43-5 D' 1-25) FOa0 18-27 || 540-8) 40-7 || 597-4 B
16 0 11-69 || 533-6] 42-5 || 586-0} 43-6 D Poo 20-27 || 521-7} 40-8 | 609-3 H
Lio 11-37 || 537-5 | 42-6 || 583.3] 43-8 D 2 iL 19-29 || 542-4| 41-3 | 628-4 B
18 0 12-72 || 539-7| 42-8 578-2} 44-2 || H 3.0 22-13 | 537-9] 41-8 | 626-2 H
19 O 15-04. || 540-5| 43-0 || 575-8] 44-5 H 4 0 13-86 || 536-4| 42-2 | 648-8 H
20 O 13-32} 543-9] 43-2 || 571-1] 44-9 181 5 ot 21-06 || 533-4) 42-6 | 646-7 | H
Pil {0) 14-68 || 546-4| 43-7 || 569-0] 45-4 || H 6 OT 13-16 || 542:5| 43-0 | 641-7 W
22710 16-68 || 542-7} 44-0 || 570-3] 45-6 || W 7 Ot 12-16 || 534-2] 43-5 | 642-4 W
23 0 19-37 || 536-0] 44-3 || 579-1] 45-7 || W 8.0 14-03 | 536-2| 43-9 | 620-9 W
By (0) 0) 21-81 || 541-8| 44-7 || 582-6] 45-8 || W 9 Ot 09-05 | 529-1| 44-4 | 610-7 WwW
1 O 16-60 || 540-6} 44-9 || 579-5] 46:0 || W 10 Ot 10-16 || 530-0| 44-9 || 589-3 W
eA (0) 19-75 || 538-4] 45-1 591-9} 46-2 B 11 Ot 11-37 || 534-7} 45-3 | 586-2 H
3 0 17-12 || 525-2] 45-4 || 616-6) 46-4 B 12 Ot 10-20 || 546-9| 45-8 | 577-2 H
4 0 18-68 || 538-2} 45-6 || 611-1} 46-6 || W
sy 0) 17-20 || 531-0} 45-8 || 620-4] 46-8 | W I 26 13 Ot 25 14-18 || 530-0] 39-5 || 524-7 B
6 0 16-18 || 539-3| 45-9 || 605-4] 47-0 D 14 ot 12-49 || 537-3| 39-0 || 558-2 B
7 ©) 14:50 || 540-4} 46-2 || 594-1] 47-3 D 15 ot 07-11 || 520-8] 38-6 || 558-4 B
S 20 14-77 || 535-8| 46-4 | 593-9} 47-7 D 16 Ot 05-00 || 526-8} 38-2 || 569-0 B
eo) 10-74 || 522-5] 46-6 || 619-2] 48-2 || H 7/0) 08-48 || 529-7} 37-8 || 583-8 | B
10 Ot 11-99 || 527-2} 46-8 594.2] 48-3 H 18 Ot 07-62 || 533-1| 37-5 || 580-0 B
Ly AO 12-92 || 529-0) 46-9 || 588-9} 48-2 B 19 OT 12-85 || 536-2! 37-2 || 579-9 H
12 | 01-83 | 529-6] 46-9 | 574-4] 48-0 B 20 O 12-69 || 539-6| 36-9 || 587-5 H
| | PHL) 15-94 || 538°3| 36-7 || 582-4 W
13. O || 25 10-20] 528-1} 46-9 || 589-6] 48-0 B 225 5G 16-77 || 533-6} 36-5 || 580-6 H
14 OF 09-89 || 529-2} 46-9 || 586-0] 47-8 B 23) 16 18-88 || 531-1] 36-3 || 583-1 H
15 Ot 12-36 || 522-1) 46-9 || 520-5) 47-7 B 21+) 05.20 15-92|| 527-0| 36-1 || 597-0 H
16 Ot 02-86 || 536-4] 46-8 || 480-0| 47.7 B 1, 30 17-51 || 537-8} 36-0 | 601-4 H
17 Ot 11-81} 530-0| 46-8 || 506-0} 47-6 B 2 ds 19-75 || 531-4] 36-1 || 605-0 H
sy 6) 11-68 || 532-2| 46-7 | 531-2] 47.4 B By 15-56 |) 546-2} 36-2 || 616-3 H
19 0O 13-02 || 534-7] 46-7 | 551-7] 47.2 || H 4 0 17:96 || 534-7| 36.2 | 617-0 H
20 O 15-58 || 539-9} 46-5 | 555-0} 47.0 || H By) HCD) 14-87 || 539-6| 36-3 || 612-1 H
21 O 19-51 || 531-2} 46-3 || 561-2} 46.8 || W 6 0 15-27 || 537-5 | 36-3 606-4 B
22 0 14-91 || 537-4] 46-2 |) 559-4] 46-5 H wea 14-04 || 540-4] 36-2 | 597-8 B
433, (6) 18-34 || 536-1| 46-0 || 564-0] 46.2 || H 8 0O 14-23 || 539-8| 36-1 | 595-9 B
24 0 O 17-22 | 526-6| 45-7 || 579-7] 45-8 || H 9 0 12:55 || 535-6] 36-0 || 600-2 B
1 O 20-42 |} 533-7| 45-4 || 580-9] 45-5 H 10 Ot 01-41 || 555-0] 35-9 || 578-5 B
4X0) 16-43 || 537-0} 45-1 579-8| 45-2 || H 11 OF 15-05 || 543-4] 35-8 | 567-3 W
3.40 16-10 }} 535-2| 45-0 || 585-2) 45.3 H 127.0 10-97 || 538-8] 35-7 || 563-6 | W
4 0 16-15 || 537-7] 44-9 || 591-6} 45-0 || H |
5. (0 17-39 || 541-7) 44-8 | 601-9} 45.0 | H 13 O |} 25 12-11]] 534-6] 35-7 || 572-0 WwW
6 Ot 11-74 || 519-6| 44-8 || 644-6] 45-0 B 14 0 14-75 || 536-5] 35-6 | 575-5 W
7 Ot 16-80 || 524-6| 44-7 || 653-2) 44-9 B 15e20 12-75 || 534-8| 35-6 | 577-3 WwW
8 Ot 15-34 || 547-3| 44-5 || 629-4] 44.6 B 16 0 13-86 || 535-0} 35-5 || 580-3 WwW
9 Ot 15-47 || 539-0] 44-3 || 618-9} 44.3 B lle © <6) 13-50 || 537-5] 35-4 || 580-9 WwW
10 O 14-20]| 534-8] 44-0 |} 612-4} 43-8 B TSK. 20 13-47 || 539-6| 35-3 | 580-8 W
11 “a 14-15 || 545-3} 43-7 || 571-8| 43.4 | W 19 0O 13-86] 538-7} 35-1 || 582-5 B
12 Ot 09-42 || 515-0} 43-3 || 562-6| 43-2 || W 20530 14-06 || 540-0} 35-0 || 580-0 B
DECLINATION. Magnet untouched, Dec. 304 1844—Feb. 5¢ 1845.
BIFILAR. Observed 2™ after the Declination, k—0:000140. BALANCE. Observed 3™ after the Declination, k=0-000010.
+ Extra Observations made.
Jan. 224 10b—234 105. Term-Day Observations made.
HovurLy OBSERVATIONS OF MAGNETOMETERS, JANUARY 27—F EpRuaARY 1, 1845.
Gottingen
Mean Time
of Declina-
tion Obs.
ds 2h.
ecocoooocococ oo oo cs
a
as
29
eooocoocococoococonvwroocooocooo
ceooeooocoocoececcoceo
DECLINA-
TION.
25
25
25
25
24
25
25
14:38
15-47
16-23
16-86
15-01
15-71
18-20
19-34
15-38
13-05
16:26
09-10
12-15
13-12
06-19
59-66
13-25
21-56
12-92
14-15
11-44
13-16
23-45
25-11
24-84
21-73
16-03
14-75
17-09
18-87
17-46
18-03
17-80
59-63
05-29
16-68
14.43
03-60
12-80
09-69
12-73
14-87
16-26
12-01
12-29
12-01
15-91
13-83
13-96
15-81
16-89
17-70
17-89
17-65
16-48
18-48
BIFILAR. BALANCE. rake
Sa
Cor- |Thermo-|| Cor- |Thermo- 8 -o
rected. | meter. || rected. | meter. || 5 ~
Sc. Div. = Mic. Div. 2
538-1] 34.9 || 572-1} 34-9 H
537-2] 34-8 || 570-8] 34-6 H
535-5] 34.7 || 572-5] 34-6 H
538-6| 34.6 || 572.9| 34-6 | H
532-6| 34-6 || 572-0} 34-7 H
546:5| 34-6 || 567-2] 34-9 H
548-9} 34.8 578-1| 35-3 H
540-1] 35-0 || 603-0] 35-5 H
524-9} 35-1 623-1| 35-6 H
528-1] 35-1 638-6] 35-7 || W
528:0| 35-1 633-4] 35-7 || W
540-4] 35-1 641-4] 35-7 || W
531-0| 35.1 632-5] 35-7 || W
524-3] 35-1 632-3] 35-7 || W
523-1} 35-1 600-5| 35-7 H
548-8] 35-0 || 542-8] 35-7 H
528-3] 35-0 || 550-9] 35-7 H
533-7| 35-0 || 541-0] 35-7 || H
529-8| 34-9 || 537-7] 35.4 H
533-8] 34-8 || 560-0} 35-2 H
534-3] 34-6 || 566-4] 34.7 H
536:3] 34-3 567:3| 34-3 H
534-8} 34-0 || 558-6] 34-0 || W
539-6] 33-7 || 534-5] 33-6 || W
536-5] 33-4 || 529-2} 33-3 B
539:0| 33-1 524.8} 32-8 || W
539-6| 32-7 || 541-2} 32.4 || W
541-4} 32-6 || 563-9] 32-4 | W
539-4] 32-5 || 565-1] 32-4 H
541-4] 32-4 || 567-8] 32-5 || W
535-2| 32-5 || 572-2| 32-7 || W
534:9| 32-6 578-0} 32-8 || W
540-9) 32-7 || 581-0} 32-9 || W
532-5| 32-7 || 622-2) 32-7 || H
524:7| 32-6 || 645-0} 32-7 H
531-2} 32.4 || 656-3] 32-6 H
527:0| 32-1 616-8] 32-2 || H
084-2] 31-8 || 544-8] 31-5 H
533-3] 31-4 || 516-0} 30-9 B
526-2} 31-0 || 529-5| 30-5 B
521-9} 30-6 || 547-4] 30-1 B
528-9} 30-1 564-1] 29-7 B
528-0] 29-7 || 570-3} 29.2 B
532-2] 29.3 567-7| 28-7 B
530-4} 28-9 || 575-5) 28-3 B
533-9] 28-6 || 576-9| 28-0 B
533-3] 28-3 || 576-1] 27-3 H
522-5| 27-9 || 574.4] 26-8 | H
533-2| 27-6 || 564-2) 26-4 || W
534-1] 27-3 || 564-1} 26-2 H
533-0] 27-0 || 565-8] 26-0 || H
535-0} 26-8 || 570-4] 26-2 || H
533-3} 26-8 || 569-1] 26-6 | H
535-0] 27-0 || 578-3| 27-2 | H
537-9| 27-3 || 582-6] 28-1 H
541-7! 27-8 || 591-3] 28-5 ll H
DECLINATION.
BIFILAR. Observed 2™ after the Declination, =0-000140.
Gottingen
Mean Time
of Declina-
tion Obs.
————s
coeocececooocooocoocooono
(Se G=) (==)
+
BALANCE.
DECLINA-
TION.
25
13-59
12-58
13-93
15-74
16-72
18-43
16-89
18-54
17-09
15-91
15-32
15-41
15-07
15-01
14-65
13-43
13.25
13-43
25 14-15
19-55
13-72
14.15
14.77
13-76
14-62
13-17
12-87
13-77
15-72
17-26
17-46
16-92
18-18
17-26
15-67
16-18
15-04
13-81
13-59
13-72
13-46
14-06
BIFILAR.
Thermo-
meter.
Cor-
rected.
BALANCE.
Cor-
rected.
Se. Div.
529-6
538-9
536-1
523-7
535-1
529-9
535-9
535-1
534-5
533-4
533-6
533-7
533-1
533-9
534.0
536-9
534-4
526-6
521-3
522-5
526-6
531-3
532-4
533-6
537-8
535-5
535°8
535-2
535-5
532-6
533-3
533-7
535-7
535°3
529-0
532-5
535-1
535-4
533-8
535-2
534-9
533-4
034-0
932-3
529-4
532-9
535-8
534-1
036-4
536-1
034-9
038-9
538-4
535-9
535-5
043-5
28-3
28-6
28-8
28-8
28-7
28-5
28-2
27-8
Mie. Div.
591-6
598-9
600-9
608-3
583-1
582-2
570-6
564-7
562-2
599-9
560-0
999-3
557-6
596-3
595:8
509°8
597-3
557-2
558-3
570-3
575-6
586-6
585-4
589-2
598-4
587-9
583-9
580-6
580-2
578-1
574-6
575-5
570-5
567-5
564-6
569-1
572-6
572-6
574-9
574-0
576-8
574-2
575-0
574-3
576-9
074-4
574-6
583-2
587-7
586-9 |
084-6
582:8
080-9
581-1
579-3
31-7
565-2
31-5
7
Observer’s
Initial.
\PWMMGtEBeSeeeeesesr setters pees sesse www ssees ddeeeuen |
Magnet untouched, Dec. 304 1844—Feb. 54 1845.
Observed 3™ after the Declination, k=0:000010.
{+ Extra Observations made.
8 Hovur.Ly OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 2—7, 1845.
Gottingen BIFILAR. BALANCE. * _.| Gottingen BIFILAR. BALANCE, % F
Mean Time |} Drcurna- P -ai| Mean Time |-Decnina- |-——> || ——__- -e 3
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 22] of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|) $2
tion Obs. rected. | meter. |} rected. | meter. 5 a tion Obs. rected. | meter. || rected. | meter. 5 ra
dd.) hb. ms © ¢ Se. Div. WY Mic. Diy. 2 d. h m. e , Se. Div. a Mie. Div. °
913 0) | 25) 14-33) Posie! oll lito7293)| o2-O) Wi 421 0O || 25 13-07]| 538-4] 38:7 || 565-9| 38-9 || W
14 0O 13-81 || 536-5} 31-4 || 574-1] 32-4 || W 2210 13-96 || 536-1} 38-6 || 566-5| 38-7 || H
15 0 14:50 || 536-9| 31-7 || 572-9} 32-6 || W os 0 15-98 || 534-6] 38-4 || 568-1] 38-7 || H
16 0 14:68 || 537-3] 31-9 || 571-6] 32-8 || W 5 0 0 17-65 || 535-6} 38-4 || 573-5| 38-7 || H
10 14-48 || 535-6) 32-1 572:0| 33-1 W 0 18-72 || 538-7| 38-5 || 579-7| 39-2 || H
18 0 13.44 || 537-4| 32-3 || 571-3) 33-3 || W 20) 19-26 || 543-1| 38-9 || 578-8} 39-8 || H
19 O 13-90 || 540-1] 32-5 || 571-4] 33-5 B Bi W) 19-05 || 538-3} 39-4 || 582-6| 40-4 || W
20 O 12-65 || 540-6| 32-7 || 573-1] 33-7 || B 4 0 21-50 || 546-9} 39-9 || 597-1] 40-8 || W
PAM (0) 13-07 || 537-7| 32-8 || 577-6| 33-8 || H 5 ot 27-42 || 535-5] 40-2 || 640-1} 41-2 | W
220 14-46 || 535-2} 32-9 || 576-2) 33-8 || H 6 Ot 24-77 || 530-8} 40-6 || 746-0| 41-4 B
23 O 15-49 || 533-3] 33-2 || 580-6] 34-2 || H Fi ot 15-22 || 528-9] 40-7 || 717-3) 41-5 B
3 M6 17:36 || 527-5| 33-6 || 585-0] 35-0 B 30 16-10 || 532-7} 40-8 || 645-3] 41-5 B
ib 0) 18-63 || 532-1] 34-2 || 585-6} 36-2 || H ST0) 15-24 || 536-9| 40-7 || 630-5] 41-3 B
20 17-54 || 535-1} 35-0 || 586-0| 37-3 B 10 O 12-89 || 534-4] 40-4 || 626-5} 40-8 B
ai) 16-79 || 537-2} 36-0 || 582-1} 38-0 || H LP 0 13-16 || 535-9} 40-1 || 612-7] 40-4 | W
4 0 15-14}] 537-6| 37-2 || 579-4| 39.0 || H 2 Or 11-88 || 533-6| 39-8 || 609-4] 40-0 | W
6) (0) 14-60 || 538-4] 38-2 || 580-9] 39-8 || H
6, 0 14-30 || 540-4} 38-8 || 580-8} 40-2 || W 13 Ot 25 09-46 || 528-6| 39-6 || 599-0] 39-7 | W
a © 14-:04|) 540-0) 39-0 || 578-9} 40-3 || W 14 ot 08-88 || 531-8} 39-3 || 585-1] 39-4 | W
8 0 14-03 || 539-1] 39-2 || 578-0) 40-3 || W 15 0 11-77 || 530-7-| 39-0 || 592-3} 39-0 | W
9 0 13-:76|| 538-4] 39-2 || 576-9| 40-0 || W 16 0O 13-47 || 531-6} 38-6 || 590-0} 38-4 || W
10 O 13-83 || 537-0} 39-0 || 576-4| 39-7 | W 17 70 12-60 || 537-3| 38-2 || 587-3| 37-9 | W
tie) 13-43 || 536-5| 38-8 || 577-3| 39-4 || H 18 0 12-73 || 537-3| 37-8 || 584-2] 37-4 | W
12 0 10-90 || 534-1| 38-6 || 577-5) 39-1 H 19 O 18-63 || 530-0} 37-4 || 583-8! 36-9 B
20 O 13-77 || 534-7] 37-0 || 570-8! 36-5 B
13 0 || 25 11-89|| 541-4] 38-3 || 565-5] 38-8 || H 210 15-34 || 531-1] 36-7 || 566-1] 36-0 || H
14 0 13-97 || 529-7| 38-0 || 570-7} 38-4 || H 22) 0 19-21 || 510-9] 36-3 || 579-9] 35-6 || H
15 0O 07-94 || 535-3| 37-7 || 558-6] 38-0 || H 23 O 23-72 || 520-2} 35-9 || 583-7] 35-3 B
16 0O 12-11 || 535:5| 37-4 || 562-1) 37-5 || H 6 0 0 22-01 || 528-3} 35-6 || 585-3] 35-3 || H
17 O 13-52 || 537-6| 37-1 562-6} 37-0 || H "0 20-02 || 532-3] 35-5 || 583-8] 35-3 || H
18 0 12-15 || 537-7| 36-8 || 567-8} 36-5 H 2 0 17-40 || 533-3} 35-5 || 587-8] 35-4 B
19 O 12-31 || 538-6] 36-4 || 569.4| 36-1 W 3° 0 15-98 || 533-6] 35-4 || 586-3] 35-5 | H
20 O 12-85 || 538-9| 36-0 || 567-6] 35-6 || W 4° 0 15-15 || 533-3} 35-4 || 589-2] 35-6 || H
PAL (0) 13-97 || 538-4] 35-6 || 564-3] 35-1 B 5) °0 13-86 || 533-1) 35-5 || 587-5] 35-7 | H
22650 15-42 || 537-2| 35-2 || 557-7| 34-7 || W 6 0 13-66 || 532-4] 35-6 || 583-6| 35-7 || W
733) (0) 17-40 }) 533-6| 34-9 || 561-7| 34-5 || W i, 20 13-29 || 533-7] 35-5 || 580-3} 35-5 || W
4 0 0 19-64 || 535-3] 34-7 || 561-5| 34-7 || W 8 0 12-83 || 534-5| 35-3 || 573-0| 35-0 || W
10 19-48 || 535-5] 34-8 || 574-5) 35-3 || W 9 0 12-58 || 532-5} 35-0 || 573-5| 34-6 || W
2°30) 19-37 || 537-7| 35-3 || 580-9] 36-1 || W 10 0 12-69 || 533-7| 34-7 || 574-9] 34.2 || W
a 0 16-84 || 536-0] 36-1 || 584-7| 37-2 || W Le 20 12-51 || 533-5| 34-4 | 575-8] 33-9 | H
4 0 16-16 || 535-7| 36-9 || 585-2} 38-0 || W P= (0) 11-98 || 533-8} 34-0 || 573-2] 33-5 || H
5) 0) 15-67 || 535-5| 37-7 || 581-4] 38-7 || W
6 0 14-73 || 537-0] 38-2 || 575-6| 39-2 || H 13 O |} 25 13-12} 532-6] 33-6 || 574-4| 33-1 H
wt 0 14-33 || 537-7| 38-5 || 572-6] 39-4 || H 14 O 13-52 || 532-9} 33-2 || 574-0] 32-7 | H
8 0 13-23 || 531-0| 38-7 || 575-4] 39-6 || H Loe x0 ' 13-86] 533-1] 32-9 || 574-3] 32:3 | H
9 0 13-14 || 537-1] 38-8 || 580-2| 39-7 || H 1670 14-57 || 535-0] 32-6 || 571-8] 32-1 H
10 0 13-52 || 536-9| 39-0 || 577-0] 39-8 || H be 70 13-74 || 535-1} 32-3 || 569-3] 31-9 || H
13 en!) 12-92 |) 536-5| 39-1 || 577-8] 39-9 B 18 0 13-00 || 537-8} 32-1 || 564-9] 31-6 || H
1 0) 12-45 || 537-8| 39-2 || 574-7| 40-0 B 19 O 11-74|) 540-2} 31-9 | 561-4] 31-3 || W
20 0O 13-03 || 540-1} 31-6 || 559-6} 31-1 || W
13 0 || 25 13-59 || 536-3} 39-3 || 572-9] 40.0 B Pale (0) 13-69 || 536-9} 31-4 |} 562-:0| 30-9 B
14 0 14.92 |} 538-8| 39-3 || 571-8] 40-1 B 22 0 13-81 || 535-6} 31-2 | 561-5| 30-7 || W
15 0 15-18 || 537-9) 39-3 || 569-8| 40-0 B 23 0 15-98 || 534-4| 31-1 563-6] 30-7 || W
16 0 13-94 || 539-4} 39-3 || 567-4] 39-9 B «@ 1070 18-13 || 534-2| 31-0 || 561-5] 30-7 || W
W7e 20 13-64 || 539-6| 39-3 || 567-5] 39-8 B I~ tO 18-40 || 536-7| 31-0 |} 564-6) 31-0 || W
18 0 13-69 || 539-8} 39-1-|| 566-8} 39-6 B 210 17-56 || 540-2} 31-2 } 568-5) 31-4 || W
19 0 13-29 || 539-5| 39-0 || 563-9] 39-4 || H 3 (0 16-79 || 535-7| 31-5 || 575-1} 31-9 || W
20 O 13-12!) 538-5! 38-8 || 564-2! 39.2 | H 4 0 16-89! 536-4! 31-7 || 583-4] 32-3 | W
DECLINATION. Torsion removed,—Feb. 54 344,—74°.* Effect of + 10° of torsion= — 0°84.
BrrinarR. Observed 2™ after the declination, s=0-000140. BALANCE. Observed 3™ after the declination, k=0:000010.
+ Extra Observations made.
* Feb. 52 334. The torsion could not have been more than 3° at first, but the north end of the brass bar moved slowly towards the west,
as if affected by currents, or as if the torsion of the thread were affected by moisture.
Hovrty OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 7—12, 1845. 9
Gottingen BIFILAR. BALANCE. | Gottingen BIFILAR. BALANCE. ‘ bs
Mean Time || Decrina- 2.2] Mean Time || DeciiNa- FG
of Declina- TION. Cor- |Thermo-|| Cor- /Thermo- g & of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 22
tion Obs. rected. | meter. || rected. | meter. || © tion Obs. rected. | meter. || rected. | meter. S *
ae) x0 ° - Se. Div. 3 Mic. Div. 2 Gi ete 6 ms o % Se. Diy. Cl Mie. Div. 2
7 5 O|| 25 15-89]| 533-7] 31-9 || 582-3| 32-4 | W] 1013 O | 25 12-43] 535-5] 35-3 |) 562-7] 35-5 B
6 0 14:70 || 537-9| 32-0 | 576-3/ 32-5 || H 14 0 14-11 || 535-1} 35-1 || 556-3} 35-3 B
wee 0 14-43 || 538-6| 32-1 || 574-1] 32-6 || H 15 O 16-55 || 539-8} 34-9 | 556-2} 35-0 | B
8 0 13-46 || 537-6| 32-0 | 573-4] 32-6 || H iG) (0) 13-69 || 531-4| 34-7 | 559-0} 34-7 || B
9 0 13-49 || 535-5] 32-0 | 576-2] 32-5 || H 17 0 12-85 || 535-4] 34:5 | 560-2] 34-4 B
10 Ot 05-29 | 527-2| 32-0 | 587-8] 32-5 || H 18 0 12-92 || 537-2| 34-3 || 562-2) 34.2 B
TiO 11-57 || 531-6} 32-0 || 575-4} 32-5 B 19 0 12-95 || 537-7] 34-0 || 560-2} 34-0 || H
12 0 13-47 || 535-5} 31-9 || 574-6} 32-5 B 20.0 13-20 || 536-9} 33-8 | 560-1| 33-7 || H
Zi O 13-17 || 536-9} 33-6 || 562-9] 33-4 | W
13 0 || 25 12-80] 534-8] 31-9 | 571-6] 32-3 B 22,50 13-49 || 534-1| 33-4 | 568-2| 33-2 || H
14 0 13-47 || 536-3] 31-8 || 570-9| 32-2 || B 23 0 14-50 || 532-8] 33-2 || 567-1| 33-0 | H
ome O 13-07 || 535-8} 31-7 || 570-5} 32-0 Baty Ono 15-51 || 531-8) 33-2 || 564-4) 32-9 || H
Lavr0 14-95] 538-0] 31-6 || 566-6] 31-7 | B 1 O 16-48 || 532-5] 33-1 | 562-7) 32-8 || H
ys a0) 12-15 || 535-2] 31-4 || 568-3} 31-4 || B 210 17-61 || 536-6} 33-0 | 567-2| 33-0 || H
18 0 12-11 ]) 534-2] 31-2 || 568-4} 31-2 B B) 15-71} 535-5| 33-1 || 573-3) 33-2 || H
19 0 12-22|| 535-6] 31-0 || 568-0] 30-9 || H 4 0 14-70 || 540-5| 33-1 | 577-6| 33-3 || H
20 0 12-18 || 538-8] 30-8 | 565-3} 30-6 || H 5 0 14-33 || 541-5| 33-1 |) 575-8] 33-4 || H
Zee 0 11-82 || 532-9] 30-7 || 563-0} 30-3 || W 6 0 13-94 || 540-2) 33-1 | 579-0| 33.4 B
22-0 13:39 || 536-4] 30-5 || 561-7] 30-2 | H “0 12-26 || 531-3] 33-1 || 582-1] 33.4 B
23 0 15-24 |) 530-0] 30-4 || 565-9] 30-2 | H 8 0 12-13 |) 5388-2] 33-0 || 577-5] 33-3 B
on Oe 0 17-19] 529-2} 30-2 || 562-5} 30.2 | H 90 12-45 |) 536-1] 33-0 || 577-7) 33-3 B
0 17:51 || 533-3) 30-3 | 568-3] 30-3 || H 10 O 11-46 || 536-2] 33-0 | 577-6| 33-3 B
2 0 17-29 || 537-5} 30-5 || 572.9) 30-5 || H iO 10-85 || 537-4] 33-0 || 570-7} 33-2 || W
30 15:98 || 536-4] 30-8 || 577-8) 31-3 || H 12 0 13-79 | 541-3| 32-9 || 563-7| 33-2 || W
4 0 14-98 || 538-6] 31-3 || 582-4] 32-0°|| H
5.6 (0 14-20 || 537-4] 31-9 | 583-1] 32-7 || H 13 0 || 25 12-80} 537-5| 32-9 || 559-4] 33-1 || W
6 60 13-69 || 538-4| 32-4 || 580-5} 33-3 B 14 0] 13-22 || 537-1] 32-8 || 563-1] 33-0 || W
7 #O 13-12|| 536-5| 32-7 || 577-8] 33-4 || B Toe 0) | 13-16 }) 537-6] 32-8 || 566-0} 33-0 || W
8 0 13-27 || 535-7| 32-8 || 576-8} 33-4 || B 16 0 | 13:05 || 539-4| 32-7 || 566-0} 32-9 || W
9 O 12-62]| 535-0} 32-8 || 573-3] 33-3 B 0 13-02 || 540-8} 32-7 || 566-0} 32-8 || W
10 0 12-35 || 536-3| 32-8 || 571-8] 33.2 B 18 0 13-19 || 539-5} 32-6 || 565-1} 32-7 || W
iO 11-98 || 535-8] 32-7 | 569-8] 33-1 || W 190) 5) 13-02 || 540-7| 32-5 || 563-1) 32-6 || B
12 0 12-98 || 536-7| 32-6 | 562-1) 32-9 | W PAY 0) 13-25 || 539-3] 32-4 || 563-8) 32-5 B
21 0 | 13-59 || 540-3) 32-3 || 562-4) 32-4 || H
9 13 O || 25 09-42]| 539-5] 31-8 || 561-1] 32-4 || H 22/980 14-68 || 536-8| 32-2 | 565-8} 32.3 || H
14 Ot 04-68 || 532-3] 32-0 || 556.5| 32-5 || H 23 40° || 15-18 || 534-4| 32-1 || 566-0} 32-3 || H
15 0 08-56 || 535:3| 32-2 || 545-7| 32-7 | H [12 0 O 17-20 || 533-6] 32-0 || 569-8| 32-3 B
16 0 13-17 || 533-9] 32-3 || 547-5} 32-9 || H 130") 17-86 || 523-6| 32-0 | 578-8| 32-5 B
Te 0) 12-04] 539-0] 32-4 || 550-9] 33-1 || H Py 10) 17-60 || 527-7| 32-1 || 576-8| 32-6 || B
18 0 15-49 || 527-7| 32-5 || 556-5] 33-2 || H o7d0 17-33 || 535-9| 32-1 || 576-3) 32-6 || H
19° 0 14-70 || 536-8] 32-6 || 548-2) 33-2 || W 4 0 15-67 || 535-6| 32-2 || 582-2} 32-7 || H
20 0 12-29 || 541-4] 32-7 || 557-0] 33-4 || W 2 0} 14-33 || 538-0] 32-2 | 580-6] 32-7 || H
21.3 14-46 || 541-8] 32-9 || 558-0) 33.4 B 6 0 13-61 || 588-3) 32-2 || 578-7| 32-7 || W
22 0 15-67 || 536-3| 32-9 || 562-0} 33-5 || W 7h Os al 13-03 | 538-6| 32-2 | 575-3) 32-7 | H
23 0 16-10} 527-6} 33-0 || 571-8} 33-7 || W i} 0) 12-98 || 538-8] 32.2 | 573-6] 32-7 || W
10° 0 0 17-15 || 526-0] 33-3 || 568-1] 33-9 || W Sae0 12-08 || 537-9] 32-2 || 572-4] 32-7 || W
0) 17-73 || 533-6] 33-7 || 564-4) 34-3 || W 10 0O 12-80 || 538-5| 32-2 || 569-9} 32-7 || W
2:7 10 18-01 || 533-0} 34-1 || 567-5| 34-8 || W nT (0) 12-65 || 539-0| 32-2 | 568-0} 32-7 || H
3 0 16-95 || 537-2) 34-6 || 575-9] 35-3 || W 12) 0 11-81 || 538-8) 32-3 | 566-4] 32-7 || H
4 0 14-80 || 537-5| 34-9 || 579-3] 35-7 || W
5 0 13:10]| 537-5] 35-2 || 579-6} 36-0 || W 13 0 | 25 09-26] 538-2} 32-4 || 559-3] 32-8 || H
60 13-19|| 538-7| 35-5 || 576-8| 36-3 || H 14 0 14-43 || 554-6} 32-4 || 536-2} 32-9 || H
7 O 12-98 || 539-2] 35-7 || 574-2) 36-6 || H 15 0 11-44 |) 534-4) 32-6 || 521-7) 33-2 |) H
SiO 13-25 || 538-4] 35-7 || 571-6] 36-5 || H 16 0O 10-21 || 537-3} 32-8 || 536-7) 33-5 || H
9 0 11-03 || 534-6} 35-8 || 571-0| 36-5 || H 17 0 10-83 || 534-9] 33-1 || 548-4] 33-8 || H
10 0O 11-32 |) 536-7] 35-7 || 568-9) 36-3 || H 18 0 11-44 || 541-2) 33-4 | 551-8) 34-1 | H
1910 11-77 || 536-9} 35-6 || 566-7| 36-1 B 19 0 11-69 || 542-4} 53-7 || 552-5] 34-4 || W
12 0 12-48! 537-1] 35-5 || 564-7! 35-8 '| B 20 O 12-48!) 542-6! 33-9 || 553-3! 34-7 || W
DECLINATION. Magnet untouched, Feb. 54—March 234,
BIrILaR. Observed 2™ after the Declination, s=0:000140. BALANCE. Observed 2™ after the Declination, k=0°000010.
MAG. AND MET. oss. 1845.
t+ Extra Observations made.
Hovur.Ly OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 12—18, 1845.
DECLINA-
TION. Cor-
rected.
= 4 Se. Div.
25 13-69 | 535-1
13-54 || 538-5
13-93 | 539-0
13-59 | 539-5
“12-90 | 539-5
13-46 || 540-5
12-45 | 542-6
13-02 | 540-1
25 12-72] 539-4
11-39 | 542-1
11-61) 540-2
12-11 | 538-8
12:09 | 540-7
| 541-6
| 540-5
12-95 | 541-0
12-85 | 540-1
537-1
12-69 | 535-9
13-86 | 536-5
16-26 | 539.2
16-32 || 538-1
17-19 || 539-3
16-99 || 538-8
15-58 || 535-6
526-8
533-2
14-21 || 536-8
| 540-9
12-67 || 541-3
12-85) 539-3
| 539-5
— —
ro—)
S ©
to
“I
wo
oS
wo
ve
ow
Ye
ie)
ns
w
©
So
25 12-70|| 539-0
12-78 || 538-6
12-82 || 538-5
12-75 || 539-3
12-65 | 539-9
12-48 | 540-6
12-72 | 539-2
13-36 | 538-1
12-69 | 540-3
12-75 | 535-2
14-06 | 533-7
15-81 | 533-0
17-02 | 533-6
16-97 | 536-7
16-25 | 539-2
14-64 | 539-4
13-72 || 538-7
13-66) 539-4
13-49 | 540-6
13-09 || 540-4
12-87 | 541-4
12-73 | 539-6
12-72 | 538-4
11-48 | 536-8
BIFILAR.
Thermo-
meter.
36-2
36-4
36-6
38-2 |
38-0 |
Cor-
|Mic. Div.
566-3
564-5
ox
a
oS
©
or or
or or
Sop
oO
on
or
oe
Or
Or
Oo
_
on
Or
on
o
rected. | meter. |
BALANCE.
Thermo-)
S
or
Mise e eee woh mowssse es See Sh | eae
37-8
Observed 2™ after the Declination, s=0-000010.
10
Gottingen BIFILAR. BALANCE. ‘ | Gottingen
Mean Time || DEcLINA- ? = | Mean Time
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°g | of Declina-
tion Obs. rected. | meter. || rected. | meter. || S'~] tion Obs.
Gl desig eS M4 Se. Div. e Mic. Div. e d. h. ms
12 21 O]} 25 13-94) 539-5] 34-1 || 558-1] 34-9 B LS 5" 0
2) (0) 13-96 || 535-3} 34-4 | 559-3] 35-2 || W 60
23 (0 14-18] 532-4| 34-7 | 558-6) 35-4 || W vo
OPO 16-05 || 532-8) 35-0 || 558-7] 35-7 || W 8 0
0 17-33 || 533-1] 35-3 || 560-5| 36-1 || W 9 0
2 0 17-33 || 531-4] 35-7 || 561-7| 36-5 || W 10 0
3.0 16-36 || 540-3] 36-2 || 563-8] 37-2 || W UA Nie 0)
4 0 15-39 || 541-2} 36:8 || 570-7| 37-8 || W 12 0
by 0) 13-29 || 536-3} 37-3 || 570-4| 38-2 || W
6 0 13-86 || 540-0} 37-6 || 571-0| 38-6 || H | 16 13 0
“10 13-63 || 539-3} 37-9 || 565-5} 38-9 || H 14 0
3} 13-44 || 538-9] 38-2 } 567-4| 39-2 || H 15 0
oe 0 13-12|| 538-5] 38-5 |} 569-3| 39-5 || H 16 0
10 O 13-19 || 539-0] 38-6 || 568-9} 39-6 || H r7 to
ik, @ 12-04 || 538-3] 38-7 || 566-6] 39-6 B 18 0
Wel 0) 12-56 || 538-1] 38-8 || 565-6) 39-5 B 190
20 0
13 0 | 25 12-87 || 538-2} 38-7 || 560-9} 39-3 B 210
14 0 16-50 |) 541-9| 38-6 || 553-1} 39-1 B 22)" 0
15 0O 13-90 || 537-9| 38-4 || 551-1] 38-8 B 23° 0
16 0 12.35 || 536-7] 38-2 || 554-5} 38-6 B 7) ORO
iO 12-06 || 539-0) 38-0 || 555-8} 38-3 B 0
18 0 12-22 || 539-6} 37-8 || 555-8| 38-0 B 2 0|
19 0 12-58 || 540-7| 37-6 || 554-5] 37-7 || H 30]
20 O 13-00 || 540-0] 37-4 || 557-7) 37-5 || H 4 0
Pall (0) 14-84 || 536-9| 37-2 || 558-7] 37-3 || W 5-0
22 0 15-54 | 537-0) 37-1 556-3| 37-2 | H 6 Ot}
23 =O 15-61 || 535-0} 36-9 || 556-8} 37-1 H 7*0O
14 0 0O 15-72 || 532-8] 36-8 || 562-1) 37-1 H 8 0
0 17-06 || 535-3] 36-9 || 557-3| 37-3 || H 9 0
Py (0) 16-32 || 534-9] 37-0 | 555-2| 37-5 || H 100
3.0 16-05 || 536-8] 37-0 || 560-9] 376 || H 12%0
4 0 15-14 | 538-0} 37-2 || 565-9] 37-7 || H 120
5 0 | 13-67 || 538-9} 37-4 || 567-6] 37-8 || H
6 0 | 13-69 || 538-5] 37-6 || 566-3] 38-0 B 13210
hod || 13-76 | 539-1} 37-6 || 563-5] 38-0 B 14 0
8 0 13-29 || 539-8| 37-5 || 563-1] 37-9 B 15 0
oP "0) 12-98 || 538-2} 37-4 || 562-1] 37-7 B 160
10 0O 12-25 || 539-4| 37-3 || 561-3] 37-5 B iby foe (5)
ul 0) 12-78 || 538-7] 37-1 || 556-0] 37-2 | W 18 0
12 0 12-85 || 537-7| 36-9 |} 555-2| 37-0 | W 19 O
20 O
13 0 || 25 12-93 || 538-0| 36-7 || 554-6| 36-7 || W 21-0
14 0 | 13-12 || 537-7| 36-5 || 555-4| 36-4 | W 22 0
15 0 12-92 || 537-4| 36-2 || 556-1} 36-1 | W 23 «0
16 0 12-89 || 537-3| 35-9 || 555-8) 35-7 || Ws Oe
17 0 13-02 || 538-2} 35-6 || 555.2} 35-4 | W ra)
I} 0 @ 12-76 || 537-6| 35-3 || 556-6} 35-1 || W 2750)
19> 0 12-72 || 538-3] 35-1 || 558-9| 35-0 B 3.0
20 0 12-82 || 538-6] 34-9 || 559-1] 34-9 B eX)
21 0O | 13-05 || 537-9| 34-8 || 559-7| 34-8 || H 5 0
a2, 0) 12-95 || 536-7} 34-7 || 559-1| 34-7 || H 6 0
23 0 14-37 || 535-1 | 34-7 || 559-7| 34-7 | H TO
sy Oy 15-14|| 536-0| 34-8 || 561-7| 34-9 B 8 0
1 0 15-34 || 535-1] 34-8 || 554-9) 35-2 | H hunt 0)
2 0 15-71 || 538-1} 35-1 || 555-6) 35-6 || H 10 O /
3 0 15-61 || 539-1 | 35-5 || 560-5) 36-1 B 12e10;}
me 4 0] 13-83 || 535-7! 35-8 || 564-6! 36-5 || H 1260)!
DECLINATION. Magnet untouched, Feb. 54—March 234.
BIFILAR. Observed 2™ after the Declination, k=0-000140. BALANCE.
+ Extra Observations made.
HovurtLy OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 18—24, 1845. ET
Gottingen BIFILAR. BALANCE. 7 | Gottingen BIFILAR. BALANCE. i is
Mean Time || Drciina- 2.2 | Mean Time || Decrina- ee
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| %°g } of Declina- TION, Cor- |Thermo-|| Cor- |Thermo-|| 3 “2
tion Obs. rected. | meter. || rected. | meter. 5 rt tion Obs. rected. | meter. || rected. | meter. 5 =
d. h m. ° U Se. Div. ° Mie. Div. g Gls ial m. 2 f Se. Diy. e Mic. Div. a
18 13 O || 25 11-08|| 536-2} 37-7 || 555-8| 37-5 || H | 20 21 O || 25 19-44]) 535-2] 38-9 || 527-7| 39.2 || B
14 0 12-55 || 536-9} 37-3 || 556-0} 37-1 H 22 0 16:72 || 534-6| 38-8 || 532-9} 39-0 || W
15 0 12-85 || 537-9| 37-0 || 555-0] 36-6 | H 23 0 18-01 || 528-1| 388-7 || 542-4] 38-9 | W
16 0 12-25 || 536-9] 36-6 || 555-0} 36-2 | H | 21 0 O 20-60 || 520-6] 38-6 || 552-4] 39-0 || W
17 0 13-02|| 537-3| 36-2 || 552-8] 35-7 || H 1 Ot 22-15 || 526-7) 38-7 || 554-3] 39-1 || W
18 0 12-89 || 537-8| 35-8 || 548-0} 35-2 || H 2 Ot 20-63 || 534.8} 38-7 || 554-8] 39-3 || W
19 O 12-65 || 536-9] 35-4 || 546-9| 34-7 || W By (0) 17-70 |) 530-2} 38-8 || 578-2! 39-4 || W
20 O 12-01 || 537-1] 35-0 || 546-6} 34-3 || W 4 0 17-00 || 541-6] 38-9 || 576-5| 39-5 || W
Bile sO 12-42|| 536:5| 34-6 || 548-3] 33-8 B 5 (0 15-34 || 540-4] 39-0 || 578-4] 39-7 || W
22550 12-80 || 534-3| 34-2 || 547-3] 33-4 || W 6 of 25 11-37 || 529-7| 39-1 || 596-6| 39.9 || H
2a 10 14-10|| 534-1] 33-9 || 542-9] 33-2 || W 7 O | 24 59-41} 526-5] 39-2 || 610-0) 40-0 | H
19 0 0 16-06 || 535-4] 33-7 || 542-5} 33-3 || W 8 0 | 25 14-68] 539-1] 39-3 || 588-5] 40-0 || H
i 20 16-62 || 537-7| 33-6 || 539-4] 33-4 || W 9 0 03-23 || 546-3| 39-4 || 577-7| 39-9 || H
2)" 0 16-75 || 541-8| 33-7 || 540-6} 33-8 || W 10 0O 14-53 || 537-0] 39-3 || 554-1| 39-7 || W
3) 15-83 || 540-9| 34-1 || 542-1} 34-5 | W SS (0) 08-11 |) 540-6] 39-1 || 548-9} 39-6 || W
4 0 15-12|| 542-5| 34-7 || 548-9] 35-4 || W 1220 08-82 || 527-3} 39-0 || 540-5] 39-5 || W
oO 14-20 || 543-0) 35-3 || 549-6} 36-1 || W
6 0 13-90 543-1] 36-0 || 546-2| 36-6 || H 13 O || 25 16-79) 531.4] 38-8 || 509-4] 39-3 D
70 13-64 || 542:0] 36-3 || 547-6| 36-9 || H 14 O 13-81 || 534-6| 38-7 || 508-7} 39-0 || D
(oe 10) 14-08 | 540-5] 36-5 || 546-1] 36-9 ||"H 15 O 12-28 || 533-3 38-5 || 533-4] 38-8 || D
SiO 13-86 || 540-7| 36-6 || 547-7] 37-0 || H 16 0 10-68 || 583-7} 38-2 || 540-4] 38-6 || D
10 0 13-59 || 546-0] 36-7 || 544.4] 37-1 H 710 11-93 || 527-2| 37-9 || 540-5} 38-4 || D
Pe- +0 11-21 || 539-8] 36-6 || 549-0] 37-0 || W 18 0 13-22 || 533-9] 37-7 || 543-6] 38-2 || B
12) 0 12-75 || 540-1] 36-6 || 548-6] 36-9 || W 19 O 13-47 || 535-1| 37-6 || 540-8| 38-0 | B
20 O 12-62 || 537-6} 37-4 || 537-9| 37-7 || B
13 0 || 25 12-33)| 547.6) 36-5 || 528-5] 36-8 || W 210 13-52 || 524-4] 37-2 || 537-0| 37-4 || H
14 0 11-22|| 541-3] 36-4 || 529-4] 36-8 || W 22,00 16-59 || 518-4} 36-9 || 548-2] 37-0 || H
tae 11-59 || 538-8] 36-4 || 534.2] 36-8 || W 2aM nO 16-35 || 529-5| 36-7 || 549-4] 37-0 | H
16 0 11-93 || 537-8] 36-3 || 539.9] 36-7 || W ]22 0 0 18-60 || 527-3| 36.7 || 552-2] 37-0 || H
17 O 10-83 || 539-7| 36-2 || 538-6] 36-5 || W 1 0 17-20 || 532-2] 36-8 || 556-6} 37-4 || W
18 0 11-19 || 542-8} 36-1 || 536-3] 36-4 || W 2 sO 21-44 || 533-3] 37-0 || 564-9] 37-8 || W
19 O 11-35 || 546-2} 36-0 || 534-3) 36-3 B 3. #20 19-19 || 532-5| 37-3 || 573-6} 38-2 | W
20 0 12-35 || 543-3] 35-9 || 536-2) 36-2 B 4 0 19-29 || 536-9] 37-7 || 586-3] 38-5 || W |
210 12-75 || 540-5} 35-8 || 534-8] 36-0 || H o 0 09-98 || 527-5| 37-9 || 617-0| 38-8 D
22-0 13-49 || 541-2) 35-7 || 533-3] 35-9 || H 6 0 16-25 || 533-7] 38-1 || 605-8) 39-0 || D
23--0 15-04 || 542-0] 35-6 || 527-2} 35-9 || H 7 10) 15-92 || 538-8] 38-2 |) 581-8] 39-0 | H
20 0 O 17-49 || 541-4] 35-7 || 525-0] 36-0 || H 8 0 14-33 || 541-8] 38-2 || 573-0] 39-0 | H
PO 21-91 ]| 555-1] 35-8 || 525-4] 36-5 || H 9 0 12:09 || 541-8] 38-2 || 575-9| 39-0 || H
20) 19-39 || 538-4] 36-5 || 541-8] 37-4 B 10 O 06-63 || 545-4] 38-1 || 576-2} 38-9 | B
3 0 22-03 || 544-1] 37-2 || 547-1] 38-4 || H LI} 0 10-36 || 533-0] 38-0 || 571-5} 38-6 || B
4 0 16-21 || 537-8} 38-0 || 555-7] 39-3 || H 12 0} 25 13-63} 536-1} 37-9 || 567-4] 38-3 B
a 0 15-67 || 542-1| 38-7 || 563-0] 40-0 || H
6 0 15-17 || 542-0} 39-1 || 560-1] 40-3 || W | 23 13 Of) 24 52-87] 528-1} 38-7 || 505-4} 38-8 || W
a0 14-85 || 544-8) 39-4 || 555-4] 40-4 || W 14 ot| 25 09-30 || 528-0} 38-6 || 525-1] 38-8 || W
8 0 14-24 || 542-5] 39-6 || 558-7) 40-5 || W 15 Of 15:72 || 519-0] 38-5 || 518-6] 38-8 | W
9 0 14-67 || 543-9| 39-7 || 560-0) 40-5 || W 16 Ot 17-36 || 513-4] 38-4 || 476-7) 38-7 || W
10 Ot 12-31 || 550-0] 39-7 || 565-1| 40-4 || W 1h OF 18-61 || 529-7| 38-3 || 458-2) 38-6 || W
11 Ot 07-92 || 528-3] 39-7 || 578-5] 40-5 || H 18 OF 11-71 || 528-7] 38-3 || 484-7] 38-6 || W
12 0 06-77 || 540-6| 39-7 || 571-0) 40-5 || H LO OF, 14-57 || 533-8| 38-1 | 498-0] 38-6 | B
20 O 14-04 || 529-3] 38-0 || 507-5| 38-4 || B
13 O |} 25 08-85 || 542-9] 39-6 || 564-6) 40-4 || H 21 O 15-41 || 532-6] 37-9 | 518-6) 38-2 || H
14 0 09-42 || 533-7) 39-4 || 572-3) 40-3 || H 22 0 15-81 || 524-5| 37-9 | 526-7} 38-1 | Hf
fa0 09-82 || 536-0} 39-3 || 564-2} 40-1 | H 23 0 13-88 | 531-1) 37-9 || 540-7} 38-3 || H
16 Of 14-40 || 525-6| 39-2 || 555-8| 39-9 | H | 24 0 0O 19-31 || 528-7| 38-0 | 548-7) 38-6 || B
17 ot 18-13 || 534-7} 39-1 || 511-3) 39-8 || H 1 O 21-93 || 538-0| 38-3 || 557-5] 39-1 || H
18 0 08-34 || 534-5! 39-1 || 514-0} 39-8 | H 2 0 17-56 || 539-1| 38-7 || 569-0] 39-4 | B
19 O 09-84 || 533-4| 39-1 || 524-8} 39-8 | W 3.0 18-14 || 537-4] 38-8 || 576-5| 39-4 || B
20 Ot 18-75 |! 529-2! 39-0 || 527-9! 39-5 || W 4 Ot 06-06 | 547-1! 38-8 || 617-0! 39-4 || B
DECLINATION. Magnet untouched, feb. 54—March 234,
BIFILAR.
Observed 2™ after the Declination, =0-:000140.
BALANCE.
Observed 3™ after the Declination, k=0:000019.
+ Extra Observations made.
Feb. 214 102—224 10h.
Term-Day Observations made.
12 Hourly OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 24—28, 1845.
Gottingen | Birimar. BALANCE. _:| Gottingen BIrivar. BALANCE. | % =
Mean Time || DEcuina- Poa | Mean Time -/-Deciina- |———|> > ee
of Declina- TION. Cor- |Thermo-| Cor- /Thermo-|| 2°¢ | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| $°E
tion Obs. | rected. | meter. || rected. | meter. 5 | tion Obs. rected. | meter. || rected. | meter. S 3
a.) hy an ° uf Se. Div. S || Mie. Div. 2 ad He im, 2 s Se. Diy. zi | Mic. Diy. ‘2
24 5 0} 25 13-46] 542-1) 38-9 | 595-3} 39-5 || H | 26 13 0 | 25 12-72] 533-2) 38-7 || 512-8] 39-3 || W
6 0O || 25 14-15], 538-1| 39-1 | 581-6] 39-6 |) W 14 0 11-42 |) 529-4| 38-7 || 533-1] 39-3 || W
a ot 24 48-81 || 558-2) 39-3 || 587-9) 39-7 || W 15 Ot 18-47 || 530-2| 38-7 || 506-8| 39-1 || W
8 Of 24 50-73 || 534-3} 39-3 || 575-9) 39-6 || W 16 0 12-62 || 534-5| 38-6 || 522-3] 38-9 || W
9 Ot 25 09-33 || 515-5] 39-1 || 553-6| 39-3 | W L7gae 12-38 | 535-5| 38-4 || 539-0] 38-6 || W
10 Ot 19-66 || 521-2) 38-9 || 480-9) 39-0 | W 18 0 12-28 || 534-5| 38-1 || 542-6) 38-2 || W
1 1 a0, 05-79|| 516-8| 38-6 || 492-8| 38-5 | H 19 0 12-72 || 536-6| 37-8 | 547-6| 37-9 B
12 Ot 08-73 || 524-5] 38-2 || 471-1) 37-9 || H 20 0 12-38 || 535-9| 37-6 | 549-3| 37-6 || B
Dingo 11-52]| 531-4| 37-4 | 554-7| 37-4 || H
13 Ot 25 11:66 || 520-9] 37-8 || 444.6) 37-5 | H 22.10 15:07 || 523-5| 37-2 ) 553-7] 37-2 || H
14 Of 04-61 || 529-2) 37-3 || 465-8| 36.9 | H yp WU 15-14) 527-1) 37-1 || 551-9] 37-4 | H
15 Ot 10-20 || 520-3] 36-8 || 478-8; 36-3 | H | 27 0 O 18-82 || 533-9| 37-3 || 552-2) 38-0 || H
16 0 12-35 || 533-1] 36-3 || 487-6| 35-6 || H 1px 19-71 || 537-5 | 37-8 | 550-5| 38-9 || H
lg @ 09-03 || 518-4] 35-8 | 513-7| 34-8 ]| H 20 22-03 || 541-2| 38-7 || 560-8} 39-8 || B
18 0 16-28 || 527-9} 35-2 || 471-3) 34-1 H a. 10 17-81 535-0| 39-4 | 567-2) 40-6 || B
19582 10-31] 532-3| 34-6 || 474-8] 33-4 || W 4 0 17-02 | 538-1} 40-0 | 572-3} 41-2 || B
20. O 14-18 || 523-0| 34-0 || 511-1] 32-7 || W Bega 14-80 || 537-1| 40-6 || 574-2) 41-6 | B
21 0 17-89 || 528-7] 33-4 || 518-3] 32-1 B 6 0 14-80 || 539-1| 40-9 || 580-4) 41-8 | W
22 0 15-05 || 521-0) 32-8 || 531-1] 31-5 || W 7248 13-49 || 537-9| 41-0 | 576-6| 41-8 | W
23 0 14-99.|| 526-0| 32-4 || 543-4] 31-2 || W 8 Ot 25 01-59|) 549-2] 41-0 |) 575-1] 41-5 | W
25 0) 0 15:05 |, 527-2} 32-2 || 548-8| 31-3 | W 9 Of] 24 52-40] 544-3} 40-9 | 574-4] 41-4 | W
0} 20-25 || 535-8] 32-2 || 555-1] 31-9 || W 10 ot 25 04-32 || 526-5| 40-7 || 565-6| 41-3 | W
a 22.45 || 534-1} 32-5 || 581-2} 32-9 || W 1b v0 10-25 || 531-4} 40-5 || 560-8| 41-2 | H
3) <0T 15-72 || 547-4| 33-1 || 616-6) 33-9 || W 12 0 08:95 || 534-5| 40-3 || 550-3] 40-8 || H
4 Ot 21-10 || 532-3) 34-1 || 616-0} 35-1 || W
5 Ot 15-64 || 544-9] 35-0 || 607-9} 36-0 || B 13 0 || 25 14-13} 529-0} 40-0 || 543-8] 40-6 || H
6 Of 05-05 || 543-5| 35-6 || 609-0! 36-5 || H 14 0 19-48 || 524-1] 39-8 || 502-4| 40-3 | H
7 Ot 06-97 || 528-3] 36-0 || 613-8] 37-0 || H 15 0 11-41 |) 534-8| 39-6 || 518-0) 40-0 || H
8 0 07-31 || 538-1] 36-4 || 603-8} 37-3 || H 1690 15-18 || 528-2] 39-4 || 543-8] 39.7 || H
9 0 13-02] 540-4] 36-7 || 593-3) 37-4 || H 170 13-32 || 535-3] 39-2 || 543-6} 39-5 | H
10 0 12-69 | 539-9| 36-7 || 566-0| 37-4 || H 18 0 12-65 || 535-2! 39-0 || 551-6) 39-2 || H
Wil hy 13-22 || 530-4| 36-7 || 527-0) 37-2 || B 19 0 12-15 |) 540-2} 38-8 || 554-7; 38-9 || W
12 Ot 14-84 || 544-6| 36-7 | 450-5) 37-3 B 20 O 13-83 | 537-3) 38-7 || 558-5| 38-7 || W
| 21 0 12-11}, 535-0} 38-6 || 560-7| 38-5 B
13 Ot 25 06-97 || 528-3) 36-8 || 467-9| 37-5 || B 22 0 12-09 || 529-7) 38-4 || 564-3] 38-3 || W
14 Ot 09-82 || 520-0) 36-9 | 479-3} 37-7 || B 23 0 13-91 || 527-3] 38-3 || 558-3) 38-3 || W
15 0 14.94 || 522-7| 36-9 || 483-6| 37-7 | B | 28 0 O 19-66 || 533-1] 38-3 || 551-5} 38-3 || W
16 0 14-51 || 528-8} 36-9 || 500-5} 37-7 || B 1680 20-92 || 523-8| 38-3 | 554-6| 38-5 | W
ty 11-07 || 534-0} 36-9 || 523-9] 37-7 || B 2 0 23-01 || 530-6] 38-5 || 561-5] 38-8 || W
18 0 08-72 || 524-8} 36-9 || 527-5| 37-6 B 3.0 19-84 | 530-6) 38-7 || 563-9| 39-2 || W
Ue) 0) 17-93 || 534-5| 37-0 | 509-7 2Yfer/ \\e dal 4.0 19-35 || 538-1] 39-0 || 567-6| 39-6 || W
20 O 13-19 || 537-9| 37-0 || 507-0| 37-7 || H 5 0 16-72 || 532-9| 39-4 || 585-6} 39-9 || W
alo) 12-42 || 533-6| 37-1 || 525-6| 37-8 || W 6 0 07-47 | 539-6| 39-4 || 596-4) 40-0 || H
22 0 16-73 || 539-6] 37-2 || 541-6) 38-0 || H Te 0 12-95 || 542-4] 39-4 || 582-0) 39-6 || H
23 0 15-81 || 525-2| 37-4 || 542-9) 38-2 || H St) 13-19 |) 534-8) 39.2 || 580-8] 39-1 H
26 0 0 20-56 || 533-8| 37-6 | 539-1| 38-4 | H 9 0 12-11] 536-5| 38-8 || 567-1} 38-5 || H
1 OT 17-46 |) 511-6| 37-8 || 563-8| 38-6 || H 10 Ot 01-95 || 543-0} 38-5 || 568-9) 38-1 || H
ao 22-89 || 523-0} 38-0 | 582-3 38-9 | H 11 OF) 09-40 || 531-2} 38-1 || 566-5) 37-7 || B
3 ot, 23-54 || 541-8) 38-2 || 591-3) 39-2 || H G0) 11:99 || 534-4} 37-8 || 565-3) 37-3 || B
4 ot 03-34 || 546-6] 38-3 || 668-4] 39-2 | H
5 0 | 17-33 || 539-9} 38-5 | 618-6| 39-3 | H 13. O || 25 10-94) 529-4) 37-4 || 561-8 36-8 B
6 0 14.71 || 536-1] 38-7 || 603-5} 39-3 || B 14 Ot 05-60 || 533-0] 37-0 || 504-2| 36-4 || B
710 13-58 || 535-3} 38-7 || 591-1) 39-4 | B 15 0 08-82 || 528-0| 36°7 || 527-2| 36-0 | B
SO) 14-80 || 535-6] 38-8 || 578-7| 39-4 | B 16 0 11-08) 528-8} 36-3 || 542-0) 35.5 | B
9 0 11-52 |) 537-5| 38-7 | 571-9| 39-4 | B i (0) 11-30) 530-8) 35-9 || 551-2) 35-1 B
10 0O 11-64 || 541-8} 38-7 || 550-8] 39-3 B 18 0 13-07 || 532-2) 35-6 || 558-1) 34-8 || B
11 O 09-19 || 533-3] 38-7 || 554-3) 39-2 | W 190) 13-05 || 534-7| 35-3 || 558-6) 34-4 || H
12 90; 12-89 || 525-4! 38-7 || 538-6! 39-3 || W 20 O 12-98 || 533-3| 35-0 ll 562-9) 34-1 || H
DECLINATION. Magnet untouched, Feb. 54—March 234,
BiFiILaR. Observed 2™ after the Declination, s=0-000140. BALANCE. Observed 3™ after the Declination, k=0-000010.
+ Extra Observations made.
Hourty OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 28—Manrcu 6, 1845.
13
Initial.
Gottingen BIFILAR. BALANCE. % _| Gottingen BIFILAR. BALANCE. %
Mean Time || DEcuINa- 2-8] Mean Time || Decuina- Ea
of Declina- TION, Cor- /Thermo-|| Cor- |Thermo-| 2‘3 | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 3
tion Obs. rected. | meter. || rected. | meter. 5 7] tion Obs. rected, | meter. |) rected. | meter, 5
a. . © i Se. Div. ? Mie. Div. 0) d. izes 2 A Se. Diy. 0 Mice. Div. a
98 21 0 || 25 13-05|| 531-8| 34-7 || 566-8| 33-9 || W 4 5 O|| 25 14-48] 539-5] 36-5 555:8| 37:0 H
22) 10 12-65 || 528:5| 34-4 || 567-5! 33-8 H 6 20 13-99 || 540-2} 36-6 || 555-9} 36-9 B
2a) 10 13-66 || 528-1| 34-2 || 561-2} 33.8 || H 7 0 14-40 || 542-1] 36-6 || 554-3] 36-8 B
1 40) 0 16-92 || 528-1| 34-2 || 558-1} 34-0 H 8 0 13-72 || 541-9| 36-5 || 553-7| 36-6 B
1 0 17-80 || 531-1) 34-2 || 558-8| 34-1 H 9 0 13-84 || 541-8} 36-2 || 554-7| 36-3 B
2510 19-68 || 534-9} 34-2 || 558-5| 34-3 H 10 O 10-83 || 541-3} 35-9 || 550-3] 35-9 B
io) 10) 19-24 || 538-0} 34-3 || 562.2) 34-5 H Nat) 13-37 || 540-9| 35-6 || 550-0] 35-5 W
4 0 17-15 || 538-3} 34-5 571-0| 34-7 || H 1250 11-24 || 540-6} 35-3 || 540-3} 35-1 W
ir 0) 14-73 || 537-7| 34-7 || 575-7) 35-0 || H
6 0 14-51 || 538-4] 34-8 || 576-6) 35-0 B 13 O || 25 12-48 || 540-8} 35-0 | 534.6) 34-8 W
“am 0 14-01 | 538-3] 34-8 || 573-5] 35-0 B 14 0O 11-66 || 536-2} 34-8 | 545.1) 34-5 ‘W
8 0 12-16 || 540-4| 34-8 || 572-5] 35-0 B 15 O 12-78 || 537-4] 34-6 || 549.8] 34-3 W
BT) | 13-32 || 537-0} 34:8 || 570-9} 35-0 B 16 0O 12-35 || 537-9| 34-3 || 551-7] 34-0 || W
10 0O 12.43 || 538-8} 34-7 || 568-9} 35.0 B ia) 12-51 || 537-2] 34-0 || 551-4) 33-7 || W
ie <0 12-80 || 537-3| 34-7 || 568-1] 34-9 || W 18 0O 12-04 || 538-9] 33-7 552-5| 33-4 W
12 0 12.63 || 538-4| 34-7 || 565-6] 35-0 || W 19 O 11.86 || 538-1] 33-5 || 555-4] 33-2 B
20 O 11-42 || 537-0} 33-3 || 559-2) 32.9 B
213 O || 25 12-82] 537-3| 39-2 || 560-0} 40-0 H 21 O 10-61 || 535-1} 33-0 || 557-2| 32.7 jal
14 0 12.28 || 537-9| 39-2 || 557-6] 40-0 || H 22000 11-27 || 533°5)) 32:9) 555-01) 32:7 H
15 0 12.28 || 537-1) 39-2 || 558-4] 40-0 | H 2a 10 13-12 || 531-1} 32-8 || 558-7) 33-1 B
16 0 12-80 || 537-6} 39-2 || 552-8) 40-0 | H 5 0 0 15-54 || 534-8} 33-0 || 555-9} 33-5 H
ty. 30 10-54 || 539-2) 39-2 || 547-9} 40-0 H i 70 17-15 || 536-5| 33-5 555-0| 34-3 H
18 0 09-59 || 536-8) 39-2 || 552-0) 39-8 H 20 17-19 | 537-7] 24-2 || 555-0} 35-2 H
19 O 11-77 || 5387-7| 39-1 || 548-6} 39-7 || W 3 10 16-63 || 539-8] 34-9 || 554.7] 35-8 || B
20 0 12.22 || 540-2} 39-0 || 548-2} 39.7 || W 4 0 15-36 || 538-8} 35-6 || 558.4] 36-4 W
Al 8) 11.46 || 534.9} 39-0 || 557-0} 39-6 B Bie (0) 14-13 || 539-1} 36-2 | 560-0} 36-9 B
22 0 11-75 || 531-9} 39-0 || 558-3} 39.5 || W 6 0 13-69 || 539-1| 36-6 || 555-7| 37-1 WwW
23 O 13.64 || 525.9! 39-0 || 557-3| 39-4 || W (0) 13-91 || 539.6] 36-7 || 551-8] 37-1 W
3 10° 20 15.83 || 528-3] 39-0 || 550-9] 39-3 | W 8 0 13-59 || 540-2} 36-7 || 550-4] 36-8 W
We) 17.19 || 532-8) 38-9 || 547-0] 39-3 | W 9 0 13-30 || 540-6] 36-4 || 549-5] 36-4 ‘W
2 30 18-88 || 537-8] 38-9 || 548.3} 39.3 W TO) 10-70 || 543-4) 36-0 || 545-8} 36-0 W
or 0 17-42 || 538-6] 38-9 || 553-3! 39.3 || W 11 O 12-23 || 541-1} 35-7 || 546-1] 35-6 H
4 0 15-69 || 538-0| 38-9 || 556-3} 39.2 W 2) 40 13-32 || 539-1] 35-3 548-0] 35-2 H
6) (0) 14.26 |} 541-6| 38-8 || 557-5] 39-1 W
6 0 14-18 || 536-0] 38-8 || 561-3] 39-0 H 13 O || 25 13-19 |] 539-7| 35-0 || 548-9| 34.8 H
410 12-78 || 539-8| 38-7 || 561-9| 38-8 | H 14 O 12-82 || 538-4) 34-7 || 550-4] 34-5 Jal
8 0 14-85 |) 540-2) 38-5 | 560-5] 38.7 H ilo (0) 12-62 || 538-6| 34-4 || 550-4] 34.1 H
9 Ot 09.35 || 540-1) 38-4 || 571-7] 38-5 H 16 0 12-51 || 538-3} 34-0 548-3] 33-8 H
Os 20 12.33 || 536-1| 38-2 || 562-5] 38.5 H ibe (0) 12-38 || 537-9| 33-7 || 549.4] 33.5 H
Hie 10 12-98 || 537-9| 38-1 558-7| 38-3 B 18 0 12-13 || 537-7| 33-4 || 549-2] 33.2 H
2) <0 13-27 || 540-4) 37-9 || 555-1] 38-0 B 19 O 11-84 || 537-7 | 33-2 || 549-0} 32-9 W
20 O 11-62 || 537-8| 33-0 || 547-6| 32-7 W
3 0 | 25 12-90|| 540-6) 37-7 || 551-2] 37-7 | B 21 O 10-56 || 536-1} 32-8 || 553-2} 32-6 B
14 0 12-36 || 538-1] 37-5 || 549-2! 37-5 || B 22 0 11-30 || 531-0} 32-7 || 554-0] 32-5 W
15 0 11-44] 536-3) 37-3 || 550.1] 37-2 || B 743) 0) 11-77 || 529-3| 32-7 || 554-1] 32-6 W
16 O 11-15] 535-3| 37-1 551-7] 36-9 B (oy 10) 13-83 || 530-3} 32-7 || 549-8] 33-0 W
17 O 11-71 || 536-9] 36-8 || 552-8] 36-7 B tO 16-18 || 533-2| 33-0 || 547-2) 33-5 WwW
18 0 12-08 || 537-9} 36-6 || 554-0] 36-5 B 2 70 17-42 || 5386-1} 33-5 || 540-6] 34-1 W
19 O 12-04 || 537-8| 36-4 || 555.2) 36.3 H an 10 17-96 || 536-9| 34-0 542.2) 34.7 W
20 O 13-39 || 538-5| 36-2 || 555-0) 36-1 || H 4 0 16.79 || 539-7| 34-6 || 546-1] 35.3 W
Zl «0 13-79 || 534-1] 36-0 || 558-5] 35-9 || W 5 (0) 15-11 || 540-1] 34-8 || 546-8) 35-4 ‘W
2250 12-82 || 535:0| 35.9 | 558-1] 35-9 H 6 0 | 14-23 || 540-4] 35-0 || 548-3] 35-5 H
23 (0 13-99 || 534-1] 35-9 || 558-6| 36.0 || H i 20 14-33 || 540-8} 35-0 || 544-3] 35-5 || H
ASO), 20 15-51 || 532-4| 35-9 | 550-7| 36-2 H 8 0 13-54 || 542-1] 35-0 |) 545-3! 35-5 H
ie, e0) 18-07 | 537-7| 36-0 | 549-9] 36-5 H 9 0O 13-19 || 543-1} 384-9 || 544-6] 35.4 H
280 16-38 || 537-1) 36-2 | 548-3) 36-7 || H 10 O 13-12 || 543-0| 34-8 | 545.4] 35-3 || H
oues0 15-89 | 538-6] 36-3 | 550-3| 36-8 H TT 0) 13-16 || 542-3} 34-8 || 546-9] 35-2 B
4 0 15-04 | 538-8! 36-5 | 552-5! 37-0 H 12 0O 12-92 || 542-6! 34-7 | 546-4! 35-1 B
DECLINATION. Magnet untouched, Feb. 54—March 234.
BIFinar. Observed 2™ after the Declination, k—=0:000140. BALANCE. Observed 3™ after the Declination, k=0:000010.
+ Extra Observations made.
a SR SER SSS
MAG. AND MET. oBs. 1845.
14 Hovurty OBSERVATIONS OF MAGNETOMETERS, MARcH 6—12, 1845.
Gottingen BIFILAR. BALANCE. | % | Gottingen BIFILAR. BALANCE. ||%
Mean Time || DECLINA- | 2a} Mean Time || Dectina- | ———__— |
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| $°2 ] of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| $°3
tion Obs. rected. | meter. || rected. | meter. 5 m tion Obs. rected. | meter. || rected. | meter. hee
GIF ie ae ° ud Se. Div. © Mie. Div. i ad. oh. “m. ° fi Se. Div. 2 Mic. Div. =
6 13 O || 25 13-07 || 542-0] 34-6 | 546-8] 35-0 || B 9 21 O |} 25 11-46|) 536°0| 40-7 || 549.3) 41:0 W
14 0 12-92 | 541-4] 34-6 || 546-8) 34-9 B 2250 12-78 || 527-3] 40-6 || 551-5| 41-0 || H
5 0 12-87 || 542-2} 34-5 || 546-5| 34-9 B Fea ee 72 15-39 || 524-6| 40-5 || 551-8] 41-0 || H
16 O 12-85 || 541-3] 34-5 |) 545-8} 34.9 B 10) (ON0m 17-47 || 521-0} 40-6 || 552-6) 41-2 || H
Migg (0) 12-80 || 541-4] 34-5 || 545-1] 34-9 | B 2055) 18-63 || 527-6] 40-8 || 551-8} 41-5 H
18 0 12-28 | 541-7| 34-5 || 545-2) 34-9 B 2 <0 19-37 || 530-0} 41-0 || 557-6| 41-9 || H
19 O 12-01 || 542-0} 34-5 || 543-3) 34-9 | H 3) 10) 17-67 || 537-4] 41-3 || 563-6] 42.2 || H
20 O 11-48 || 540-4| 34-5 545-1| 34-9 | H 470%! 16-53 || 540-5| 41-7 || 568-1] 42-5 H
PAL (0) 10-16 || 536-6| 34-6 || 551-7} 34-9 || W or a 15-34 || 543-5] 42-0 || 569-1] 42-8 || W
22 0 09-96 || 529-8| 34-7 || 550-1| 35-2 || H 6 0] 14-04 || 538-7| 42-3 || 567-3] 43-0 B
23° 70 12-18 || 529-5| 34-8 || 546-0} 35-5 || H 7 +O 13-12 || 540-4| 42-4 || 564-6] 43-1 B
4 070 16-32 || 529-1} 35-0 || 539-3] 35-8 | H 8 40) | 09-69 || 538-9| 42-5 || 565-2) 43-2 B
il 90-85 || 534-4] 35-3 || 529-4| 36-2 | H 9) 40 11-98 || 539-3 | 42-5 || 561-4] 43-0 B
20 20:00 | 531-8} 35-9 || 535-5| 36-7 || H 10 0O 09-87 || 538-8| 42-4 || 557-0| 42.7 B
By MW) 20-58 || 540-0} 36-4 || 539-3] 37-3 | H Ti 20 12-06 || 539-6} 42-1 553-6] 42-3 || W
4 0 16-73 || 544:5| 36-9 || 544:0| 37-7 H 12° 0) 10-97 || 542-6] 41-8 || 548-5] 41-8 || W
5 15-54 || 545-3] 37-3 || 548-5] 38-1 H
6 0 15-41 | 545-0] 37-6 || 547-5| 38-3 B 13. O || 25 11-96) 537-7} 41-5 || 552-2) 41-3 || W
7 0) 14-84|| 544-3) 37-7 || 551-5| 38-5 | B 14 0 | 13-05 || 536-8} 41-1 552-6] 40-8 || W
8 0 13-64 || 545-0| 37-8 || 560-3} 38-5 B 15: © 13-12 || 536-4] 40-7 || 555-0] 40-3 || W
9 0 12-11 || 538-7| 37-8 || 570-5] 38-5 B 16 0 14-06 || 537-8} 40-3 || 549-5} 39-6 || W
10 Ot 09-49 || 540-6] 37-8 || 571-5| 38-5 || B 17° 4O 12-09 || 538-0} 39-8 || 551-4) 39.0 || W
Le 0 10-30 | 539-6| 37-8 || 560-4] 38-4 || W 18 0 11-77 || 536-2} 39-3 || 554-4! 38-4 || W
12 0 13-61 || 540-2] 37-8 || 558-4] 38-4 || W 19 O 11-42 || 536-2| 38-7 || 555-0| 37-8 || B
| 20 O 11-27 || 534-9| 38-2 || 553-1] 37-3 B
13 0 || 25 14.35] 543-7] 37-8 || 552-2) 38-4 || W PU XY) 10-70 || 531-1] 37-8 || 554-6| 37-0 || H
14 O 13-37 || 588-9| 37-7 || 553-5| 38-3 || W 22) +0 11-77 || 528-7) 37-4 || 558-9] 36-8 || H
5. 0) 12-85 | 538-3] 37-7 || 552-3] 38-2 | W 25-790 13-07 || 526-1) 37-3 || 557-7| 36-8 || H
16 0 12-38 || 539-3} 37-6 || 550-8| 38-1 W iit “0x0 15-52 || 528-6| 37-4 || 560-4] 37-3 B
17 0 11-37 || 541-0| 37-6 || 547-7} 38-0 | WwW 1 0 18-35 || 534:3| 37-5 || 553-2| 37-7 || H
ts' 70 11-86 | 539-6] 37-5 || 547-1) 38-0 | W 250 19-21 || 537-3| 37-7 || 554-1} 38-1 B
19 O 12-36 | 538-7| 37-5 || 546-3} 38-0 | B ye) | 19-41 || 534-6] 38-0 || 552-0! 38-6 H
20 O 12-38 | 538-8] 37-5 || 545-6| 38-0 | B 4°30) 18-14} 540-0] 38-5 559-5} 39-1 B
91 O 11-10} 535-5] 37-5 || 543-5] 38-0 H 5» 0 15-05 || 537-1] 38-9 || 569-1| 39-5 || H
BP (0) 12-95 | 532-0| 37-5 || 546-2) 38-2 | H 6 0 13-86 || 538-7| 39-2 || 567-6| 39-7 || W
93 O 13-86 | 525-2) 37-7 || 547-7| 38-4 | H 7 Ot 07-57 || 536-2} 39-3 || 573-9} 39-6 || W
8 0 5 17-91 | 524-5] 38.0 || 545-5| 38-7 | H 8 0 11-21 || 541-4] 39-3 || 565-8| 39-5 || W
Thun) 19-88 || 529-5) 38-4 || 542-1| 39-3 || H 9 0 12-60 || 538-7] 39-0 || 559-1} 39-1 || W
29 0 20-16 || 532-0} 38-9 || 546-1) 39-9 B 10 OT 06-07 || 535-7| 38-7 || 556-1) 38-6 | WwW
3. .@) 18-48 || 538-6] 39-4 || 555-1| 40-5 | H Ts 0) 11-10 || 536-4} 38-3 || 551-9} 38-3 || H
4 0 16-97.)| 540-8} 40-0 || 564-8! 41-0 | H 12650 12-53 || 539-0| 38-0 || 548-6| 37-8 || H
5 0 13-39 || 538-1} 40-4 || 573-5| 41-5 | H
6 0 13-19 | 540-3| 40-8 | 566-9} 41-7 | W 13. O || 25 13°91 || 537-7| 37-7 || 547-1| 37-3 || A
“t 13-74 || 540-7| 41-0 || 558-3} 41-8 | W 14 0 14-41 || 538-7] 37-3 || 543-4} 36-9 || H
8 0 12-93 || 542-5| 41-0 || 557-2| 41-8 || W 1D~ 0 12-92 || 536-3} 36-9 || 551-2| 36-6 || H
9740 12-76 || 539-2| 41-0 || 558-5) 41-7 | W 16 O 12-75 || 537-2| 36-6 || 556-7] 36-2 || H
10 O 13-37 || 542-3) 41-0 || 554-2) 41-6 || W 17 10 12-78 || 537-8] 36-3 || 557-8] 35-9 || H
1h (0) 13-52 || 543-2] 41-0 || 551-9| 41-5 || H 18 0 12-55 || 559-4] 35-9 | 557-5] 35.5 || H
12 O 13-22 || 542-4] 40-9 | 553-8} 41-6 || H 19 0 12-11 || 538-9] 35-6 || 555-4| 35-1 WwW
20 O 11-69 || 538-6] 35-3 || 557-7] 34.6 || W
913 O || 25 12-25) 539-9} 41-1 || 550-5) 41-4 B PAK) 10-77 536:0| 35-0 || 562-6| 34.4 B
14 Ot 14-75 || 536-6| 40-9 || 552-6] 41-3 B 2250 11-17 || 532-2] 34-7 || 558-4] 34.3 || W
15 O 12-55 || 533-6} 40-9 || 540-2) 41-4 B 23.0 12-11 || 530-0] 34-7 || 555-5] 34.5 | W
16 a 14-53 || 538-3} 40.9 || 513-6] 41-5 B 12) 0) Oy 13-66 || 532-4| 34-8 || 551-7) 35-0 || W
ite, 08-99 || 534-8} 40-9 || 538-0} 41-5 B It (0) 16-68 || 533-2] 35-2 || 552-0] 35-8 || W
18 0 09-47 || 539-5] 40-8 || 542-0} 41-3 B 2) 10 17-98 || 534-8) 35-8 || 551-8] 36-8 || W
19 O 11-27 | 538-1] 40-8 || 545-1] 41-2 | H a: 10M! 18-25 || 539-6| 36-7 || 558-4] 37-7 || W
20 O 11-74 || 535-4} 40-7 || 545-8] 41-0 ll H 4 0 17-15 || 542-1| 37-5 || 564-1| 38-4 || W
DECLINATION. Magnet untouched, Feb. 54—March 232.
BIFILAR. Observed 2™ after the Declination, s=0-000140. BALANCE. Observed 3™ after the Declination, s=0-:000010.
+ Extra Observations made.
HovurtLy OBSERVATIONS OF MAGNETOMETERS, Marcy 12—17, 1845.
Gottingen BIFILAR. BALANCE. % _;| Gottingen
Mean Time || Drecuina- e 3 Mean Time
of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-|| 3°g | of Declina-
tion Obs. rected. | meter. || rected. | meter. | S'~] tion Obs.
a Se. Diy. e Mic.Div.| °° de hs! mn.
12 5 O|] 25 15-11|| 541-5} 38-3 | 563-2; 39-0 | W |] 14 13 0
6 0 13-81 || 539-9] 38-7 || 560-4] 39-4 | H | 14 0
i (0) 13-69 || 541-2} 38-9 || 554-5] 39-3 | H 15 0
8 0 13-39 || 542-3] 38-8 || 550-6} 39-1 || H 16 0
9 0 13-22 || 541-0] 38-4 || 548-4) 38-6 || H 17 0
10 O 12-85 || 540-5] 38-0 || 544-0| 38-0 || H SO
1l O 12-46 || 541-2} 37-6 || 542-3] 37-2 || H 19 O
eA (0) 12-38 || 540-2) 37-1 || 542-2} 36:5 | B 20 0
21 6
13 0 || 25 12-06|| 539-8] 36-5 || 541-9} 35-8 | B 22, 0
14 0 12-11|} 537-7| 35-9 || 544-2] 35-1 B 23 0
15 0O 11-21 || 540-4) 35-4 || 538-6) 34-4 | BJ15 0 0
16 0O 11-44]|) 538-6] 34-8 || 543-0) 33-8 | B 1 O
17 O 12-09 || 540-3) 34-3 || 542-2) 33-2 || B 2 0
18 0 11-86 || 540-8) 33-7 || 543-6] 32-7 | B Bee
19 0 12-15 || 538-9) 33-2 || 546-4) 32-3 ] H 4 0
20 0 12-65 || 535-9] 32-8 || 554-4) 31-9 | H 5 0
21 O 15-04 || 528-1] 32-5 || 558-3} 31-6 | W 6 0
22 0 15-52 || 530-1} 32-2 || 551-5) 31:5 | H do
23 «0 16-48 || 526-2| 32-1 || 547-2] 31-6 || H 8 0
i 00 19-71 || 526-1) 32-1 || 552-8) 32-1 | H 9 O
150 22-74|| 526-7] 32-4 || 551-3) 32-8 | W 10 0
2 AD) 23-45 || 531-1| 33-0 || 552-2) 33-7_|| H | 11 0
3 0 21-98} 534-7| 33-8 || 554-0) 35:0 | H 12 0
4 0 18-85] 538-5) 34-8 || 569-8} 36-1 | H
5 0 15-79|| 540-5] 35-8 || 573-7| 37-0 | H | 16 13 0
6 0 13-36 || 543-5] 36-7 || 574-:7| 37-7 | B 14 0
a0 13-81 || 539-6] 37-4 || 568-2) 38-0 || B 15 0
8 0 13-23 || 542:8| 37-6 || 560-7| 38-0 || B (G0)
9 0 11-68 || 539-3) 37-5 || 557-9| 37-7 | B hee 0)
10 O 12-63 || 542-3} 37-3 || 550-7| 37-3 || B 18 0O
ll O 13-32 || 542-0| 36-8 || 546-9| 36-8 | W 19 0
12 0 12-92 || 541-1] 36-4 || 543-9} 36-3 || W 20 0
21 0O
13 O || 25 12-60]| 541-5) 35-9 || 543-4) 35.7 | W 22 0
14 0 12-11 || 541-6} 35-5 || 542-6) 35.2 || W 23 0
ton ‘0 11-19 || 541-4] 35-0 || 540-6| 34.7] W]17 0 0
16 0 13-25 || 545-2| 34-6 || 536-9} 34-3 || W ©
17 0 08-45 || 543-6} 34-3 || 535-3) 33-8 || W 2 0
18 0 11-14 || 543-6} 33-9 || 536-6| 33-4 || W 3 0
19 O 09-93 || 539-2| 33-6 || 541-5] 33-0 || B 4 0
20 Of 11-21 |) 530-0) 33-2 || 545-4} 32.5 | B 5 0
21 Ot 19-31 || 520-5) 32-8 || 543-4} 32-1 || H 6 0
22 st 20-94 || 532-9} 32-4 || 532-8) 31-9 | B 7 0
23 OT 13-52 || 526-3} 32-2 || 538-5) 31-8 | H 8 0
14 0 0 18-38 || 527-6} 32-0 || 534-3] 31-8 | H 9 O
i <0 18-60 || 532-7) 32-0 || 535-5| 32.2 || H 10 O
KY) 21-19] 535-1) 32-3 || 541-1] 32-8 || H 1k)
an) 21-79 |) 535-7) 32-9 || 552-3) 33-6 || H 12, 0
4 0 20-18 || 543-1} 33-4 || 558-2] 34-4 || H
a 10 15-81 || 539-2) 34-0 || 568-2) 35-0 | H 13 0
GeO 15-72 || 541-3] 34-6 || 571-7) 35-1 || W 14 0
“a0 04-55 || 528-8} 34-6 || 604-3) 34-9 || W 15 0
8 0 09-93 |) 534-0) 34-4 || 593-1] 34-7 || W 16 0
9°10 07-04 || 532-3) 34-1 || 581-5| 34-3 || W 17 0
10 0 02-08 || 542-8) 33-8 || 556-7) 33-8 || W S70
11 0 10-67 || 539-8] 33-5 || 544.5] 33-4 || H 19 0O
20 06-66 | 533-1! 33-2 || 539-2! 33.0 | H 20 O
DECLINATION. Magnet untouched, Feb. 54—March 234.
BIFILAR. Observed 2™ after the declination, <=0-000140. BALANCE.
DECLINA-
TION.
° ,
25 11-49
11-12
11-91
13-05
14-08
14-92
17-46
20-30
19-51
18-20
15-52
12-78
13-12
13-34
12-72
10-90
13-36
07-13
11-79
12-31
13-69
12-72
12-15
12-18
12-25
11-95
10-47
25
BIFILAR. BALANCE.
Cor- |Thermo-|| Cor- |Thermo-
rected. | meter. |} rected. | meter.
Se. Diy. iS Mic. Div. °
535-2} 32-8 531-6| 32-5
530-4} 32-4 || 537-5} 32-1
530-6} 32-1 542-0) 31-7
532-4] 31-7 529-6| 31-2
532-4) 31-4 || 527-7| 30-8
532-7} 31-1 528-1} 30-5
533-5| 30-7 || 535-1] 30-2
533-4} 30-4 536-3} 29-9
527-3| 30-2 || 541-5| 29-7
523-3} 30-0 || 540-8| 29-6
527-4] 29-9 || 540.0} 29-8
527-3| 30-1 536:9| 30-6
533-5| 30-9 || 535-5| 31-8
531-0} 31-9 || 537-0} 33-0
541-7| 32-9 || 542-2) 34-0
543-0} 33-8 545.6| 34-7
546-8 | 34-8 || 553-9} 35-8
540-4| 35-6 577:9| 36-3
540-3| 35-9 || 592-8) 36-5
542-9} 35-9 || 583-1] 36.4
531-6| 35-7 || 581-2] 35-9
544-8| 35:4 || 562-8) 35-4
548-4] 34-9 525-6| 34-9
539-5| 34-3 || 527-6] 34-3
527-7| 32-7 || 482-0} 32.7
531-7| 32-6 || 487-7| 32-6
534-2| 32-4 || 503-3] 32-5
525-3} 32-2 || 515-3) 32-3
524.4) 32-0 || 513-1) 32-0
532-5| 31-8 508:5| 31-7
533-1] 31-6 || 527-7| 31-4
533-1} 31-3 536-6] 31-1
530-4} 31-1 544-7] 31-1
523-9| 31-0 || 546-5] 31-1
528-5| 31-2 || 543-5} 31-7
526:0| 31-7 540-0} 32-4
530-9} 32-3 541-2] 33-3
533-1} 33-0 || 541-5] 33-9
537-8| 33-7 549-7| 34-8
535-5 | 34-6 598-8 | 35-7
544.8] 35-2 || 569-6] 36-2
542.2} 35-7 563-8] 36-7
540-7| 36-0 || 563-9] 36-9
541-7| 36-1 599-4] 36-9
547-0| 36-0 || 551-7] 36-8
539-0| 36-0 || 545-1] 36-7
543-7| 35-9 539-4| 36-6
541-3! 35:8 521-9} 36-4
534-2} 35-6 || 525-8) 36-1
536:0| 35-4 533-3| 35-8
535-2) 35-2 || 538-3} 35-5
535-1} 35-0 || 538-6| 35-2
535-5| 34-8 || 540-3) 35-0
536-2} 34-6 || 541-0] 34-8
533-1} 34-4 || 546-2) 34-6
536-8! 34-2 || 546-5} 34-4
a
Ox
Observer’s
Tnitial.
Toren nee se eres seus Sst Hemmmnnddddddddeggmmmnnn |
Observed 3™ after the declination, s=0°000010.
+ Extra Observations made.
16 HourRLy OBSERVATIONS OF MAGNETOMETERS, Marcu 17—22, 1845.
Gottingen BIFILAR. BALANCE. + | Gottingen BIFILAR. BALANCE. | + &
Mean Time || DEctInNa- |——,_____||___|_]] & 2] Mean Time || Drontna- |e s
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°2 | of Declina- TION. Cor- |Thermo-|| Cor- Thermo-| a
tion Obs. rected. | meter. || rected. | meter. 5 1 tion Obs. rected. | meter. || rected. | meter. | S “a
ie eek eo Lay op aeeal ie So.Div.| _¢ || Menee tecn a
0 | 25 11-49 || 532-1| 34-0 || 550-8] 34-3 || W }] 20 5 O || 25 17-78|| 562-6| 36-5 o73| 37-7 | W
0 12-56 || 530-2] 34-0 || 550-9| 34-2 | H 6 0 06-46 || 545-5| 37-4 | 783-5) 38-5 | D
0 15-25 || 526-3) 34-2 || 548-3) 34-5 || H hy iO 15-51 || 533-7| 38-2 || 699-0] 39-3 | D
0 16-99 || 530-7| 34-4 || 543-0] 35-2 || H 8 0 14-55 || 535-1| 38-7 || 616-2) 39-6 | D
(@) 19-10 || 530-6| 35-0 || 536-4] 35-8 || H 9 —0 13-14|| 536-7] 38-8 || 586-7} 39-9 | H
0 19-62 || 535-2} 35-6 || 536-9| 36-6 | H 10 0O 13-72 || 536-6| 38-8 || 569-7| 39-6 | H
0 19-10 || 538-9| 36-4 || 542-5| 37-7 || H 1i 0 13-29 || 536-2| 38-5 || 566-6| 39-1 | B
0 17-33 || 538-8| 37-5 || 551-4) 38-8 || H 12) 30 12-53 || 536-8] 38-1 || 564-9] 38-5 | B
0) 12-31 || 534-2] 38-7 | 580-4| 40-2 || H |
0 12-80|| 538-4| 39-8 || 587-8| 41-1 || B 13. 0 |) 25 10-43 || 535-5| 37-7 || 562-8) 37-9 | B
0 13-39 || 543-0} 40-6 | 572-7| 41-6 | B 14 0 10-56 || 535-3| 37-2 || 556-2| 37-2 | B
0 14:06 || 538-6| 41-0 || 574-3} 41-9 || B 15... 07; 18-37 || 532-2} 36-7 || 538-3| 36-6 | B
0 11-71 || 542-7) 41-2 |) 570-7] 41-9 | B 16 OF 14-68 || 536-9| 36-2 | 471-2) 36-0 | B
Ot 03-37 || 558-2| 41-1 || 534-3] 41.7 | B 17 OF 09-24 |) 533-3} 35-8 || 517-5| 35-5 || B
0 06-19 || 541-9] 40-9 || 518-4) 41-4 || W 18 0 10-67 || 532.8} 35-4 || 539-2) 34-9 | B
12 0 13-23 || 534-6] 40-7 || 529-1) 41-2 | W 19 O 11-71 || 536-3] 34-9 || 546-3] 34-3 || H
20 O 10-68 || 533-9} 34-4 | 552-3| 33-8 | H
0 | 25 13-76|| 538-0] 40-3 || 535-5) 40-7 || W 2iy 40 10-90 || 528-2| 34-1 || 560-0) 33-7 | W
0 13-03|| 537-7| 39-9 || 537-6) 40-0 || W 22 0 11-08 || 526-8| 33-9 || 557-8} 33-7 | H
0 11-48 || 535-2] 39-4 || 541-2} 39-3 || W 25) 10 14-08 || 520-0] 33-8 || 563-7) 33-9 | H
0 13-99 || 536.5| 38-9 | 534-9] 38-6 || W] 21 0 O 16-03 || 527-4| 34-0 || 552-4| 34-4 | H
0 11-08 || 536-7| 38-4 || 536-9] 38-0 || W 1, gd 19-08 || 534-1] 34-3 || 546-1] 349 | H
0 10-21 || 535-7] 37-9 || 540-2} 37-5 || W 2, 0 19-68 || 534-2} 34-6 | 550-2) 35-4 |
19 O 10-65 || 534-0] 37-5 || 542-2] 36-8 || B 3.0 18-41 || 538-3] 35-0 || 553-3] 35-8 | H
0 10-56 || 536-9} 37-0 || 543-7| 36-3 || B 4 0 16-53 || 537-9| 35-4 || 557-7| 36-2 || H
0 10-23 || 528-0} 36-6 || 550-5| 36-0 || H 5». 0 14-67 || 539-3) 35-7 | 559-8| 36-5 || H
ayy (0) 11-10 }| 527-6) 36-3 || 552-4] 35.9 | H 6 0 13-12 || 538-8} 36-0 || 559-1) 36-7 || B
0 13-91 || 524-7] 36-1 || 546-4| 36-0 || H £30 12-87 || 540-5} 36-3 || 553-9] 36-9 | H
0 0 16-59 || 528-0| 36-1 || 545-9] 36-3 || B 8 0 12-76 || 547-0| 36-6 || 556-0| 37-3 || H
1 0) 18-88 || 530-8] 36-2 || 544.8! 36-5 || H 9 OF 09-26 || 532-2| 36-9 || 565-6| 37-7 || H
2) {0} 19-44 || 533-7] 36-2 || 551-9] 36-7 || H 10 Of 13°96 || 547-8| 37-2 || 505-9| 38-4 | H
a (0) 18-81 || 542-0] 36-4 || 554-0! 37-0 || H 1l 0O 08-36 || 530-7| 37-7 || 482-5} 38-9 || W
4 0 16-57 || 542-7] 36-8 || 555-5| 37-4 || W 12) 0 10-78 || 531-6| 38-3 || 495-9} 39.4 || W
5 10 15-54 |) 548-4) 37-1 || 561-9} 37-6 || H
6 0 12.23 || 537-6] 37-3 || 581-3] 37-6 || W 13 Of! 25 12-29]| 537-0| 38-7 || 500-3} 39.8 || W
730 03-41 || 530-0) 37-1 || 609-2} 37-3 || W 14 0 15-49 || 533-8] 39-1 || 494-2} 40.4 || W
8 0 09-79 || 526-5} 36-9 || 607-8| 37-0 || W 15.46 09-42 || 529-8} 39-5 || 505-4) 40.7 || W
9 Ot 16-28 || 528-1} 36-7 || 542-8} 36-7 || W 16, OF 10-92 || 519-5| 39-9 || 497-1] 41-0 | W
10 O 06-51 || 527-7) 36-4 || 570-1] 36-5 || B 1740 06:90 || 536.4} 40-2 || 492-5] 41.3 || W
10 21-46 || 536-4] 36-2 || 533-2] 36-3 || B 18 0 07-27 || 541-4| 40-6 || 506-4| 41-6 || W
12 0 09-69 || 530-0} 35-9 || 506-3) 36-0 | B 19 O 12-45 || 534-9} 40-9 || 518-6] 41-9 || B
20 0 14-03 || 533-1] 41-2 || 525-4] 492.2 || B
13 0 || 25 10-60}| 527-6| 35°6 || 481-1] 35-6 || D 21, x0 11-07 || 532-2] 41-4 || 532-5] 49.4 || H
14 0 03-21 || 535-5} 35-3 || 467-5| 35-2 || D 22,40 12-62 || 528-4} 41-7 || 537-8) 492.6 || H
omno 13-77 || 515-0) 34-9 || 468-7| 34-8 || D 23 0 13-49 || 523-0| 41-9 || 540-7) 43.0 || H
16 0 07-34 || 535-5] 34-6 || 447-4) 34.5 || D | 22 0 O 17-13 || 526-8] 42-4 || 529-5) 43.5 || B
le (ON 04°95 || 534-4) 34-2 || 469-1] 34-0 || D 1, 40 19-17 || 525-9| 42-8 || 526-9] 44.0 || H
18 0 06-91 || 529-4] 33-8 || 474-9) 33.6 || H 2, 10 21-39 || 532-1] 43-3 || 529-7| 44.7 || H
19 0 12-26 || 537-4| 33-4 || 485-6! 33.0 | H 3 0 19-71 || 533-6| 44-0 || 547-5| 45.4 | B
20 0| 09-46 || 533-9] 33-1 || 503-1) 32-5 || H | 4 0 16-77 || 537-7| 44-8 || 560-0} 46.1 || H
220 09-39 || 532-0} 32-7 || 519-9) 32-1 || W |} 340 14-35 || 541-3} 45-4 || 568-3] 46.6 || B
22: 40 11-84 |} 526-4} 32-4 | 523-4| 32.1 || W | 60 12-38 || 539-1| 45-8 || 562-1] 46.9 | W
BO 15-47 || 514-:9| 32-3 || 534-4) 32-3 || W aw 11-66 || 538-4] 46-2 || 557-4] 47.2 || W
0 0 17-94|| 524-6] 32-3 || 538-1] 32-8 | W 8 0 12-01 || 539-8} 46-4 || 551-1] 47.3 | W
1 O 21-23 || 525-9| 32-8.) 532-6| 33-6 || H 9e<0 12-08 || 539-7] 46-6 || 550-0] 47-3 || W
210 22-33 || 535-3) 33-5 || 531-4| 34-7 || B | 10 O 10-92 || 541-2} 46-6 || 549-2} 47-4 || W
3 0 20-36 || 545-0) 34-4 | 531-4] 35-7 || B | iG, 11-35 || 538-8} 46-7 || 545-3} 47-4 || H |
4 0| 18-41 || 547-5! 35-4 || 545-9] 36-7 || W 12" 40 12-56 || 539-5} 46-8 || 544-7| 47-5 || H
DECLINATION. Magnet untouched, Feb. 54—March 234.
BIFILAR. Observed 2™ after the Declination, s=0:000140. BALANCE. Observed 3™ after the Declination, <=0-000010.
+ Extra Observations made.
March 194 10%—204 10%, Term-Day Observations made.
Gottingen BIFILAR. BALANCE,
Mean Time || DECLINA-
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter.
d. | S Z ¥ Se. Div. & Mic. Div. o
2313 ot 25 08-06 || 538-8| 50-1 || 507-0) 49-8
14 Ot 17-53 | 535-3| 49-7 || 406-5) 49-4
15 ot 04-37 || 532-2| 49-3 || 407-0| 49-0
16 ot 04-01 || 529-6| 48-8 |} 461-9) 48-5
V7 s07 05-65 || 508-6| 48-4 || 461-8] 47-9
18 Ot 13-39 || 537-3| 47-9 || 475-6} 47-3
19 O 09:30 |] 537-2| 47-4 || 521-8) 47-7
20 0 09-91 || 539-0} 47-0 || 523-3] 46-1
21) 30 11-08 || 526-1] 46-6 || 540-4) 45-7
22) 20 13-10 || 521-7) 46-2 |) 544-2} 45-5
2a 50 | 16-62 || 519-5| 45-9 || 540-3} 45-6
24 0 O 18-30|| 525-6] 45-8 || 533-0} 46-0
+0 29.57 || 525-7| 46-2 || 536-1] 46-6
2 0 23-54|| 540-7| 46-6 || 541-4] 47-3
3 0 24.69 || 548-5] 47-0 || 558-7] 48-0
4 0 24-32 || 538-8] 47-6 || 589-0} 48-5
a «2 23-01 || 544-9] 48-1 || 616-3} 49-0
6 ot 15-51]] 540-4] 48.6 || 644-8] 49-3
Ui Ot 08-58 || 548-1} 48-9 || 631-3] 49-4
8 Ot 07-17 || 532-6] 49-0 || 611-2} 49-5
9 0 07-54 || 532-5] 49-0 || 602-6) 49.4
10 0O 10-83 || 533-5} 48-8 || 582-0} 49-0
11 2t 09-33 || 535-8] 48-4 || 558-4] 48-3
12 ot 16-25 || 536-7| 48-0 || 544-2] 47-7
13 Ot 25 05-96 || 543-5] 47-6 || 439-8) 47-1
14 Ot 24 53-721|| 512-6| 47-1 || 430-0| 46-5
15 Of] 25 04-14 505-8] 46-6 || 418-2} 45-9
16 ot 00-71 || 533-8} 46-0 || 352-7} 45-3
17 ot 05-11]| 511-3) 45-4 || 421-2} 44-7
TS) 10 10-03 || 532:2| 44-9 || 483-7| 44-0
19 O 09-98 || 529-4} 44-3 || 521-9) 43-2
20 O 10-53 || 517-2] 43-6 || 543-9] 42.4
21. 10 10:90 || 520-9} 43-0 || 555-4) 41-9
22540 12-04] 518-4| 42.6 || 553-7| 41-7
Pew (0) 15-04 |} 511-0) 42-2 || 550-7] 41-7
ao 0 0 16-45 || 517-4] 42.2 || 548-6} 42-2
> 50 19-51 || 530-8] 42.4 || 548-6] 42-7
2 10 20-35 || 533-6| 42-7 || 560-1) 43-3
ae <0 18-16 || 542-3] 43-2 || 573-4] 44-0
4 0 17-40 || 540-8| 43-8 || 577-1] 44-5
re 0 15-12 |) 533-1} 44-2 || 601-9] 45-0
6 Ot 10-30 || 542-1} 44-6 || 615-6} 45-2
7 13-66 || 541-5) 44-8 || 583-5} 45-3
8 0 12-55 | 539-1] 44-8 || 570-0] 45-3
9 0 11-77 540-3} 44-8 || 565-3] 45-2
10 0O 10-43 || 541-2] 44.7 || 561-5} 495-0
11 O 09-80 }| 536-3} 44-6 || 556-5} 45-0
125 0 11-30 || 543-0] 44-4 || 543-7} 44-8
13 Ot 25 04-89 || 550-9| 44-3 || 498-9| 44.7
14 Ot 04-86 || 532-4) 44-1 || 508-1| 44-5
15 0 11-91 || 527-1| 44-0 || 504-6| 44.2
16 0 08-29 |) 531-2) 43-7 || 517-6] 44-0
17 O 10-58 || 532-0| 43-5 | 534-9] 43-6
18 0 12-29 || 534.6] 43.2 || 539-9} 43-2
19 O 08-83 || 528-6| 42.9 || 548-9] 42.7
20 0 10-67 || 527-7| 42-6 || 557-4] 42-3 |
DECLINATION. Torsion removed, March 234 2335, -18}°.
Birinar. Observed 2™ after the Declination, k—=0'000140.
HovurLy OBSERVATIONS OF MAGNETOMETERS, MArcH 23—28, 1845.
Observer's
Initial.
|
SSomMttet oee sees sree See SS
Gottingen
Mean Time
of Declina-
tion Obs.
+
aoooooo oce co Comic cr
et
—
as
eocoeocococecoce@ccococoosqsooos
SL Stoo So (SO SSS ae ene,
MAG. AND MET. oBs. 1845.
BALANCE.
DECLINA-
TION.
25
11-21
14-15
18-81
19-91
17-34
17-54
15-18
13-05
12-58
06-03
09-29
08-79
09-67
09-13
25 12-28
14-80
12-69
12-56
10-20
10-75
10-47
09-30
09-37
09-89
11-00
15-99
18-52
18-16
17-60
16-05
BIFILAR.
Cor-
rected.
Sc. Div.
526-6
526-8
536-4
535-6
540-0
Thermo-
meter.
42-3
42.1
42-1
42-3
42-6
43-3
44-0
48.4
48-9
Cor-
rected.
Mie. Diy.
559°8
559-2
557-6
548-3
540-2
554°6
570-1
582-8
594-4
626-0
| 618-5
549-8
568-5
539-2
496-8
502-0
499.3
507.4
447-7
477-8
513-0
532-9
534-3
545-6
550-2
553-2
556-8
550-0
544-9
548-2
558-9
562-9
600.4
605-5
611.5
603-5
531-1
546-6
537-1
532-7
537-7
532-5
535-9
531-4
537-9
535:9
539-3
544-5
541-9
539-4
532-9
524.8
523-0
535-8
543-7
550°2
BALANCE.
Thermo-
meter.
49.4
49-7
pe
~y
Observer’s
Initial.
MOM ddd sees Seu soMmmnnsdddddddy |
Effect of + 10° of torsion = — 084.
Observed 3™ after the Declination, k=0°000010.
{ Extra Observations made.
18 Hourly OBSERVATIONS OF MAGNETOMETERS, MArcH 28—ApRIL 2, 1845.
Gottingen BIFILAR. BALANCE. | * | Gottingen BIFILAR. BALANCE. % =
Mean Time || DrcuiNna- a "6 | Mean Time | Deciina- |_| >| —_ eee
of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-| 2°2 | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2 °2
tion Obs. rected. | meter. || rected. | meter. 5 ‘*} tion Obs. rected. | meter. |] rected. | meter. 5 _
Gly | iy Sank 2 a Se. Div. oi Mic. Div. 2 m. = , Se. Div. ° Mic. Div. =
28 5 O || 25 14-20] 544-7} 49-4 || 558-9} 50-0 | B O || 25 10-13 || 540-2} 48-3 || 535.2] 48.3 || H
6 0 12-51 || 542-3] 49-7 | 565-0} 50-2 | W 0 09-98 || 539-0| 47-8 || 540.0| 47-7 || H
Chel) 12-11 || 542-2} 49-8 || 562-2} 50-2 || W 0 09-24 || 537-4| 47-3 || 542.1]. 47-1 || H
8 0 12-11 |) 540-9} 49-8 | 556-7| 50-0 | W 0 07-74 || 535-2) 46-8 || 545.6] 46-5 || H
9 it} 25 08-68 |) 540-4] 49-6 || 551-4} 49-5 || W 0 08-82 || 535-6| 46-3 || 544.5] 45-8 || H
10 Of] 24 56-27|| 541-6] 49-2 | 547-5| 49-1 | W 0 08-63 || 535-4| 45-8 || 546-2] 45-2 || H
11 Of] 25 04-91] 525-6] 48-8 | 545-4| 48-7 || H 0 10-43 || 533-9| 45-3 || 546-7) 44-6 || W
12 0 10-13 || 533-7] 48-4 || 539-7) 48-5 || H 0 08-39 || 532.4] 44-8 || 547.0] 44.1 || W
4 07-67 || 529-3| 44-4 || 553-7] 43-7 || B
13 0 |) 25 11-71]| 535-7] 48-0 | 542-9] 47-9 || H 0 08-53 || 524-4} 44-0 || 554.3] 43-6 || W
14 0 11-21 || 533-9| 47-7 || 547-4] 47-3 || H 0 11-07 | 522-6] 44-0 || 556-1] 44-0 || W
15 0 11-64 || 533-9] 47-3 | 548-9] 46-7 || H 0 14-04 || 522-3} 44-1 || 548-1] 44.5 || W
16 0 10:16 || 534-6] 46-9 || 549-3] 46-2 || H 0 17-26 || 526-8| 44-6 || 544-5] 45-1 || W
We AO) 09-96 || 532-2) 46-4 } 551-9] 45-7 || H 0 17-98 || 530-9| 495-1 || 545-1] 45-9 || W
18 0 10-53 || 533-9] 46-0 | 549-1] 45.3 || H 0 17-29 || 533-4| 45-8 || 550-2] 46-6 || W
19; 0 09-12 || 5382-9] 45-7 || 547-4] 45-0 | W 0 15-61 || 538-5} 46-5 || 546-7] 47-3 || W
20 O 10:94 || 533-1] 45-3 || 547-0} 44.6 | W 0 13-90 | 542-0| 47-1 || 549-1] 47-9 || W
21 0 13-14 || 526-3} 45-0 || 550-1} 44.4 | W 0 12-42 || 545-5| 47-7 || 550-2] 48-6 || H
22 0 14-71 || 522-9| 44-8 || 552-9| 44.5 || W 0 12-02 || 543-4| 48-3 | 550-0] 49-1 || H
23 0 15-98 || 521-4] 44-8 || 555-0] 44-8 | W 0 11-98 || 546-3] 48-7 | 549.3] 49.2 || H
29 OY 40 13-36 || 528-3} 44-9 || 548-0} 45.3 || W 0 07-64 || 541-6| 48-7 || 551-0] 49.2 || H
1) 18-23 || 537-9| 45-4 || 535-3} 46-0 || W 10 0 10-50 || 543-3] 48-7 || 544.0] 49-1 || H
2 0 21-41]! 533-9] 46-0 | 536-6] 46-7 || W LS oC) 12-18 | 542-1] 48-6 || 540-5] 48-8 | B
oF a3 21:14|| 542-8) 46-7 || 548-7| 47.4 || W 12 0 12-08 || 540-8] 48-4 || 542.7] 48.5 || B
4 0 18-60 || 535-9| 47-4 || 565-5} 48-2 || W
5 0 16-79 || 543-8} 48-0 || 567-9] 48-8 || W 13. O || 25 11-41 || 540-7} 48-1 | 539-3] 48.0 || B
6 0 12-89 || 541-1] 48-6 || 575-9} 49-2 || W 14 0 10-87 || 540-0] 47-7 || 535-3] 47-6 || B
a0 07-37 || 548-8} 49-0 || 582-7] 49.4 || H 15 0 09-56 || 536-2} 47-3 || 538-7] 47-1 B
8 0 10-33 || 541-9| 49-1 | 577-4) 49-5 | H 16 0 11-91 || 539-7} 46-9 || 528-6] 46-5 || B
9 0 09-30 || 543-9} 49-0 || 575-2] 49.3 | H 17,0 10-01 | 536-8] 46-4 || 528-9] 45-9 || B
10 Ot 05-69 || 539-3} 48-9 || 541-1/ 49.0 || H (80 08-32 || 537-9] 45-9 || 532-9] 45-3 || B
11 OF; 03-90 || 530-7] 48-6 || 518-7| 48-7 || B 1960 08-52) 536-6| 45-4 || 538-3] 44-7 || H
12 0 07-85 || 533-7} 48-3 | 506-8] 48-4 | B 20 0 08-56 | 536-7| 44-9 || 543-5] 44-2 || H
2180 08-01 || 532-6| 44-5 || 547-9] 43-8 || W
30 13 0 | 25 11-35|| 538-9} 43-0 || 539-9] 43.2 | W 22 0 08-41 || 528-4] 44-1 || 545-8] 43-6 || H
14 0 10-95 || 536-9] 42-9 || 547-6] 43-1 || W 23 0 11-98 || 526-0} 43-9 || 540-0] 43-7 || H
15 0 11-12] 537-1] 42-8 | 550-8] 43:0 | WT2 0 0O 15-29 | 525-2] 43-8 || 535-4] 44-0 || H
16 0 09-74 || 536-1] 42-7 || 554-3} 42-8 || W io 18-55 || 527-6 | 44-1 || 522-0] 44.6 || H
Wry 0) 09-82 || 534-7| 42-6 || 554-8] 42-5 || W 2 0 20-99 || 531-4] 44.8 |} 529-1] 45.7 || H
18 0 10-01 || 536-6] 42-4 |) 554-1] 42-2 | W 3 0 21-00 || 537-0] 45-9 || 539-4} 47-2 || H
19 0 09-66 || 534-8} 42-1 || 558-5|) 41-9 || B 4° 0 18-03 | 539-3| 47.3 || 542-5] 48-7 || H
20 O 09-02 || 533-1| 41-9 || 560-8] 41-8 || B' ay 0 15:34 | 541-5| 48-6 || 544-2] 50-0 || H
21 0 09-44 |) 531-0} 41-8 | 560-1] 41-7 || H 6 0 13-49 || 544-2] 49.8 || 540-8] 50-9 || B
22 0 10-00 || 527-0} 41-8 || 562-6] 42-0 || H ZO 12-15 | 545-5| 50-6 || 551-5] 51-5 || B
23 0 11-95 || 524-2] 41-9 | 561-0) 42-5 || H 8 0 08-18 || 545-9| 50-9 || 555-8] 51-5 || B
ot ORO 14-60 || 525-3} 42-4 |) 545-5] 43-4 || H 9 0 09-35 || 543-9) 50-8 || 556-3] 51-3 || B
10 17-93 || 528-7| 43-2 || 541-9) 44-4 || H 10 0 11-00 | 545-8} 50-7 || 549-6] 51-0 || B
2 0 19-04 || 532-7| 44-2 | 538-1| 45-5 | H EO, 11-07 || 545-7 | 50-4 || 541-7| 50-5 || W
3 0 18-84 || 537-0| 45-4 || 542-3) 46-7 || B 1210 09-74 | 545-1} 50-0 || 536-1] 49-9 || W
4 0 16-48 || 539-0] 46-6 || 546-9} 48-2 | H
5 0 13-70 || 539-6} 47-9 || 551-4| 49-4 | B 13 0 || 25 09-76) 541-8] 49-5 || 532-9] 49-3 || W
6 0 12.46 || 542-8} 49-1 || 554-7] 50-2 || W 14 0 10-36 || 542-3] 48-8 || 535-7] 48-5 || W
80 12-28 || 543-5| 49-8 || 553-5] 50-7 || W 15 0 09-79 || 540-2} 48-2 || 540-2] 47-7 || W
Se0 12-35 || 545-1 | 50-0 || 549-6] 50-7 || W 16 0 09-51 || 539-4] 47-6 || 541-5} 46-8 || W
90 12-09 || 545-9} 50-0 || 546-8) 50-4 || W 7 10 08-79 || 539-4} 46-9 |) 542-2} 46-0 || W
10 O 12-15 || 545-1 | 49-7-|| 544-1] 50-0 || W lite) AU. 08-14 || 539-4) 46-3 || 535.4] 45-3 || W
ll 0 11-61 || 542-5} 49-3 || 545-2) 49.5 || H 19570 06-76 | 539-3| 45-6 || 540-9] 44-6 || B
12 0 12-35 || 546-4! 48-8 || 541-1! 49-0 | H 20 O 06-41 || 535-3! 45-0 || 547-4! 43-9 || B
DECLINATION. Torsion removed, April 24 245,—34°.* Effect of + 10° of torsion =—0’84.
BIFILAR. Observed 2™ after the Declination, s=0-000140. BALANCE. Observed 3™ after the Declination, s=0-000010.
* April 24 23h,
The line of detorsion of the suspension thread varied during the observation ; at first it was about N. 3° E. to
S. 3° W.; it was ultimately N. 5° E. to 8. 5° W.
+ Extra Observations made.
——|
Gottingen
Mean Time
of Declina-
tion Obs.
=e
OCWBONIMNRWNRK OWNS:
a.
2
bo bo 0
ow
eeoeooocooocoooooo oer
a
HovuRLY OBSERVATIONS OF MAGNETOMETERS, APRIL 2—8, 1845.
DECLINA-
TION.
25 07-13
07-67
13-17
16-75
21-71
23-27
19-22
16-90
14-64
13-43
14-13
eoconooooococococoeocoecoco
eeocooococeqoeqcoeces
08-59
06-59
06-43
09-93
13-49
25 12-18
11-49
10-25
10-06
12-62
12-31
10-40
09-93
06-26
08-01
11-15
15:96
19-91
20-49
18-81
16-28
13-74
11-57
10-09
09-76
09-94
10-20
10-77
09-82
bo
On
09-96
11-17
10-70
11-17
09-69
09-06
07-94
05-82
06-41
07-10
10-47
14.33
19-53
19-76
18-08
15-56
BIFILAR. BALANCE.
Cor- |Thermo-|| Cor- |Thermo-
rected. | meter. || rected. | meter.
Se. Div. © Mic. Diy. Y
530-2} 44-4 |) 550-7} 43-5
524-3! 43-9 || 554-3} 43-2
515-9} 43-7 || 553-4} 43-1
521-3} 43-5 || 541-9} 43-0
530-3 | 43-4 || 535-7) 43-4
529:5| 43-6 || 536-0} 43-9
531-0} 44-1 548-9} 45-0
542-4] 45-2 || 554-2] 46-2
540-6| 46-4 | 554-6] 47-6
546-3} 47-8 || 565-5| 49-0
545-8} 49-0 || 586-8] 49-8
546-2} 49-7 || 602-1| 50-2
539-0; 49-9 || 570-2| 50-2
538-3} 49-9 || 568-4} 50-0
537:7| 49-7 || 557-0| 49-7
540-8] 49-2 || 545-8} 49-2
539-8| 48-7 || 540-6] 48-5
538-6| 48-2 || 541-5] 47-8
538-4} 47-7 || 542-0} 47-2
541-0} 47-2 || 542-4| 46-6
541-0| 46-7 || 541-4] 46-1
544-7| 46-2 || 537-6| 45-6
543-1] 45-8 || 539.3) 45-1
538-1] 45-4 || 549.2] 44-7
532-:9| 45-0 || 548.3] 44-3
529-6| 44-7 | 551-6] 44-0
521:8| 44-4 || 553.3] 43-8
515-5| 44-1 548-1} 43-8
514:9| 44.0 | 540-9] 43-8
520-4} 44-0 || 542.2) 43-9
535:4| 44-0 || 546-1| 44-0
538:0| 44-0 || 552-8) 44.2
538-1} 44-1 559-8| 44-3
539-4| 44.2 |) 561-4) 44.5
542-1| 44-1 561-6] 44-5
541-0} 44-0 || 561-3} 44.5
542-1; 44-0 || 559-6} 44-3
539:6| 44:0 | 559.9] 44-1
541-7| 43-9 || 557-3| 44-0
544-2| 43-8 |) 542-8] 43-9
538-8| 43-7 || 540-8] 43-7
538-1] 43-6 || 546-9| 43-5
539-0] 43-4 || 551-0| 43-4
540-7} 43-3 || 552-1] 43-2
536-8] 43.1 553°8| 43-0
538-2] 42.9 || 555-0| 42-9
536-8| 42-8 || 556-6| 42-7
535:3| 42-7 || 562-0) 42.5
528-0] 42-5 || 565-9] 42.4
522-4| 42.3 || 563-3] 42.4
519-2} 42.4 || 559-6] 42.5
515-7| 42.4 54g 2 42.7
524.8] 42.8 | 532-8] 43.4
529-8} 43.4 | 533-5] 44.5
535-6] 44-4 | 541-0| 45-7
537-6| 45-7 || 549-4! 47-0
BiFILAR. Observed 2™ after the Declination, :=0:000140.
Observer’s
POMS od ae midgddgrondmunme |
Gottingen
Mean Time
of Declina-
tion Obs.
Initial.
Gli gloiy
5
6
W
8
9
Sooo OROOE
lon)
I
oqo o oe oo oc oo coo eo oS e'cre's"s'" S'S
—
SOON D UB WD &
jon
_
oOoQoooacqoocooooqoqoocoqcnooceoco
—
bo
DECLINA-
TION.
25 14.20
12-20
11-37
10-48
10.38
10.65
10-85
09-54
25 09-86
10-75
10-61
10-47
12-15
10-80
09-69
07-51
08-46
09-74
12-63
15-45
16.21
20-65
20-25
15-69
14-77
12-72
10-78
06-76
12-11
11-61
11-54
10-92
25 11-62
11-69
10-87
10-47
10-47
10-60
09-64
07-40
06-63
08-01
10-60
12.95
17-15
19-02
17-93
19-81
14-13
12-26
11-32
11-12
10-94
11-12
07-69
08-92
BIFILAR.
Thermo-
meter.
Cor-
rected.
Se. Div. )
541-6
544-0
546-5
545-4
543-9
541-7
542-7
540-5
540-6
538-8
538-2
538-8
537-5
538-8
535-9
533-7
527-9
522-5
515-2
526-4
529-4
534-3
542-6
543-7
544:5
547-7
547-2
549-0
542-3
541-3
542-2
541-3
546-1
544-1
536-7
537-5
537-5
538-6
537-9
535°3
530-2
524-5
518-5
521-5
524-0
529-6
539-4
539-0
538-0
541-8
543-1
543-0
542-6
543-1
540-6
539-9
47-3
46-9
BALANCE.
Thermo-
meter.
Cor-
rected.
Mic. Div.
544-4
544-7
539-1
541-6
543-0
540.1
538-6
539-2
48-2
49-1
49-5
49-5
49-5
49-0
48-4
47-8
537-0
537-2
536-3
529-5
512-7
526-9
535-9
541-0
543-1
549-6
555-2
048-9
044:5
548-9
537°5
523-6
525-9
533-9
542-7
554-5
557-1
555-6
548-6
544-0
542-2
542-8
544-1
48-1
47-7
47-3
46-8
46-3
SSR OO Wee eee eee See Hom mttntntseseseseseseesenestntete due wwe |
19
Observer’s
Initial.
~
DECLINATION. Magnet untouched, April 24—May 84.
Observed 3™ after the Declination, k=0-000010.
{+ Extra Observations made.
BALANCE.
20 HovurRLY OBSERVATIONS OF MAGNETOMETERS, APRIL 8—14, 1845.
Gottingen BIFILAR. BALANCE.
STURT rr eo | Re ORIN AN
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter.
i el Se. Diy. ° Mie. Diy.| °
25 04-86]| 531-1} 41-3 || 557-9} 41-0 |
06-07 || 524-9} 41-2 || 554-0} 41-1
09-79 || 521-9| 41-2 || 553.2) 41-4
14-15 || 522-1) 41-4 || 540-9] 41-7
18-10 |} 525-8] 41-7 || 533-8} 42-1
19-81 || 532-6 : 536-0| 42-5
19-08 || 534-2 : 542-6| 42-9
17-09 || 536-3 . 547-0] 43-3
14.46 || 543-1 3: 552-:0| 43-6
541-6 : 557-1| 43-7
546-5 : 551-4} 43-7
545-3 : 549-4] 43-7
544-8 : 550-1} 43-5
545-6 : 549-6} 43-2
541-3 : 547-7| 42-8
542-3 : 543-5 | 42-3
Gottingen BIFILAR. BALANCE.
Mean Time || DECLING§ |= = ol ae
of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-
tion Obs. rected. rected. | meter.
Observer’s
Initial.
Observer’s
Tnitial.
|
Sc. Div. Mic. Div. bd
537-7 ‘4 || 546-3| 45-7
538-5 . 549-2} 45-2
538-5 . 552-9| 44-6
539-4 . 554-2} 44-0
539-4 . 556:0| 43-3
540.4 . 559-4| 42-7
538-6 : 564:0| 42-0
536-4 . 568-6| 41-6
528-6 . 570-7| 41-4
521-0
518-9
522-7
529-0
537-5
541-7
541-7
548-3
545:1
544-8
548:8
543-7
543-7
544-2
552-6
541-6| 42-0 || 542-4] 41-8
541-6| 41-6 || 544-2] 41.3
540-1] 41-2 || 546-8] 40-8
540-4} 40-8 || 547-1] 40-3
540-2| 40-4 || 549.6| 39.8
541-8} 40.0 || 551-2| 39.3
541-3| 39-6 || 555-6] 38-8
538-7| 39-3 || 558-2] 38-5
532-1| 39-0 || 561-1] 38-5
526-0 559-6| 38-5
523-3| 38-8 || 557-0] 38-7
543-2 555-3| 39-5
529.0 548-3] 40-3
535-9| 40-1 || 544-2] 40-8
536-9 || 549-6] 41-5
539-9 552.0| 42.2
544-2] 42.1 || 556-9] 43-1
542-8| 42.7 || 561-3] 43-5
545-2| 43-0 || 560-0] 43.8
545-2| 43.3 || 559-2] 44-0
548-1| 43.4 || 552-2] 44.0
543-0| 43-4 || 552-0] 44-0
542-2} 43.3 || 547-9] 44-0
541-3] 43.2 || 543-9| 43-7
Se o1ore Sle Clore ole elore Clore Clo ooo oF
542.4
540-1
539-7
540-4
540-6
541-5
539-1
536-7
532-5
526-7
523-4
526-8
18-25 || 530-8
19-22 || 535-9
18-01 || 543-3
15-69 || 543-0
14-68 || 540-9
12-31 || 543.2
11-81 || 544-1
11-68 || 545-3
11-52 || 543.6
11-34 || 543-2
11-57 || 543-9
10-77 || 544-3
OOnNouPP wd =
_
_
453-0 . 180-2} 43-3
427-5 . 216-0} 43-0
291. 2 . —4-5| 42-9
528-0 . 288-6| 42-8
524-5 . 448.2| 42-7
537-0 . 499-9| 42-6
531-0 . 518-5] 42-5
539°8 . 509-6] 42-5
522-7 : 523-7| 42-4
526-2 : 530-8} 42-7
531-2 : 525-0| 42-9
517-8 . 531-8] 43-2
525-2 : 532-9| 43-3
517-6 . 560-8] 43-5
533-1 . 569-1} 43-6
538-6! 43-2 || 650-6! 43-7
_
(ov)
ee
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11-17 || 542-5
11-03 || 541-1
10-88 || 540-8
10-70 || 540-6
10-09 || 539-9
09-44 || 540.3
08-16 || 539-8
06-37 || 537-2! 41-5
Tord Keres eee See Sense eree Hndddddnomunonnmowddddad |
to
SO OOS SFO SS oro SiS Oo SOS So Oo oro Oro So
SOMO Seah MS SSeS SHR aesesses gun ew emnninimmmms |
ocooooocoococococococqcow
ocoooococeo
+
DECLINATION. Magnet untouched, April 24—May 84.
BIFILAR. Observed 2™ after the Declination, s=0-000140. BALANCE. Observed 3™ after the Declination, s=0-000010.
+ Extra Observations made.
HourLy OBSERVATIONS OF MAGNETOMETERS, APRIL 14—18, 1845. 21
Gottingen BIFILAR. BALANCE. | Gottingen BIFILAR. BALANCE. * F
Mean Time || Decuina- |__| || £3] Mean Time |] Decuina- |) | 2.5
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°2] of Declina- TION. Cor- |Thermo-]| Cor- |Thermo-| 2 °¢
tion Obs. rected. | meter. || rected. | meter. 5 7 tion Obs. rected. | meter. || rected. | meter. | 5 mn
elie XT. o f Se. Div. ©) Mie. Diy. ip d. hy me ° , Se. Div. a Mie. Diy. 9. |
14 5 ot 25 16-87]|| 541-8} 43-4 || 603-5| 44-0 H te 13) O |) 25) 11-199)" 5381) 51-5) |) 537-1) o1-0 B
6 ot 11-59|| 543-5] 43-6 || 619-8} 44.2 B 14 0 11-10|| 536-7} 51-0 || 523-2) 50-4 | B
ie ot 00-57 || 543-8} 43-7 || 633-7| 44-3 B 16) 0) 10-18 || 535-2} 50-5 || 529-7) 49-8 | B
8 0 06-74 || 536-7) 43-8 | 593-3) 44-2 B 16 0 09-19 || 533-3| 50-0 || 537-8| 49-3 B
9 0 11-64]| 531-7} 43-6 || 570-8} 44-0 B 7, (0) 09-44 || 533-3] 49-5 || 544.2] 48-9 | B
10° 5 11-98] 541-0} 43-4 || 550-4) 43-7 B 18 0O 08-95 || 533-41 49-0 || 549.3} 48-4 || B
1} 12-36}} 530-3| 43-2 || 512-1} 43-5 || W 19 0 08.48 || 531-4} 48-7 || 553.4| 48-0 H
(2 ot 16-43 || 531-1] 43-0 || 470-5] 43-4 || W 20 0 07-55 || 527-8| 48-3 || 558-6| 47-8 H
21) 70 06-56 || 525-6} 48-1 559-1} 47-6 || W
13 90 || 25 12-55|) 535-2| 42-9 || 483-5) 43-3 W py D) 08-38 || 522-6] 48-0 || 555-1| 47-6 H
14 6 09-67 || 527-7| 42-8 || 499-4] 43-2 W 23 O 11-41 || 521-1) 47-9 || 545-8) 47-6 | H
ioe 10 11-37 || 529-9| 42-7 || 504-6] 43-0 || W]17 0 O 13-69 || 522-8) 48-0 || 538-6) 48-2 | H
16, 40 10-30 || 530-3) 42-6 || 521-5] 42-9 || W LO 14.85 || 522-0} 48-2 || 535-3) 48-8 H
ive 0 11-54 || 533-3} 42-5 || 524-6) 42-8 WwW 2 *0 16-66 || 530-3} 48-8 || 540-1| 49-7 H
18 0 11-15] 525-7] 42-4 || 528.3) 42-7 || W 3 0 15-47 || 536-0] 49-8 || 540-2} 50-7 H.
19 O 10-75 || 533-1); 42-4 || 531-6] 42-6 B 4 0 14-01 || 537-3) 50-7 || 540-8} 51-7 || H
20° 0 07-87 || 532-0] 42-4 || 541-4] 42.7 B > 0 13-74 || 540-6] 51-6 || 541-5] 52-7 H
21 0 07-29 || 527-7] 42-4 || 545-0] 42-9 | H 6 0 12.16 || 542-9} 52-5 || 541-3] 53-6 | W
22° ‘0 09-19 || 524-4} 42-6 || 550-9} 43-2 || H TaO 11-66 || 544-2} 53-1 540-5] 54.2 H
23 0 11-34 || 525-7} 42-9 || 530-4] 43-6 H 8 0 10-70 || 542-0| 53-7 || 546-1] 54-5 H
15 0 O 15-01 |} 521-5} 43-5 || 528-8) 44.3 H 9 0 07-87 || 546-2| 53-9 || 547-4] 54-6 H
1 O 15-74|| 522-4} 44-1 520-6] 45-0 || H 10 O 10-14 || 540-4) 54-0 } 546-4] 54.5 H
2 0 18-10} 530-2] 44-7 || 531-7| 45-5 H To 0) 09-96 || 538-5] 53-9 || 543-9] 54-3 || W
a 10 17-94|| 526-1] 45-4 || 543-7| 46-2 H 1270 10-74 || 538-5| 53-7 || 537-9) 54.1 W
4 0 14-91 |} 535-9] 46-2 || 555-7| 46-7 H
5) 5 (0) 12-92 || 546-3] 46-8 || 561-0} 47-2 H 13 0 || 25 10-53] 538-4] 53-4 || 537-3) 53-8 || W
6 0 11-49 || 545-8| 47-2 || 560-7| 47-4 | W 14 0O 10-54 || 537-7} 53-1 536-5] 53-4 || W
a0 12-72 || 547-4| 47-4 || 546-3) 47-5 || W iB (0) 10-33 || 537-2) 52-9 || 536-5} 53-0 | W
8 0 09-67 || 543-5| 47-4 || 545-9| 47-4 || W LoeO 09-40 || 537-3} 52-6 || 537-2) 52-7 || W
9 0 02-99 || 549-9} 47-3 || 540-2) 47-2 || W i 08-79 || 536-4| 52-4 || 537-0) 52-4 | W
10 O 07-57 || 539-9] 47-0 || 532-9| 46-9 || W 18 0 08-08 || 535-0] 52-2 || 540-0} 52-2 || W
i 0 10-97 || 535-4] 46-6 || 529-3) 46-5 H 19 O 06-73 || 533-3| 52-0 || 540-6} 52-0 jal
12 0 10-13|) 538-9} 46.2 || 521-6] 46-1 H 20 O 06-06 || 531-8} 51-8 || 539-9] 51-7 H
Pail (0) 06-53 || 529-2} 51-7 || 538-3] 51-7 H
13 0 | 25 10-98 || 539-3] 45-8 || 514-6| 45-7 H 22° 0 08-92 |) 525-4) 51-6 | 537-4] 51-7 H ]
14 0 10-90 || 537-9} 45-4 || 512-9] 45-3 H 23 0 11-07 | 523-6} 51-6 || 537-5] 51-9 H
15 O 08-63 || 532-6| 45-0 || 517-3) 44-9 H 18 0 0O 15-11 || 526-1] 51-8 || 531-2) 52.2 | H
1G: 20 11-07 || 525-6) 44-6 || 524-4] 44-5 H i (0) 16-68 |) 531-1; 52-0 || 520-9} 52-5 lal
7-0 10-36 || 532-9) 44.2 || 525-6) 44-1 H P {0) 18-07 || 538-0} 52-3 || 524-2} 52.8 B
iS 10 09-02 || 535-1} 43-8 || 528-2) 43.7 H a) i) 19-89 || 551-5] 52-7 || 529-2] 53-3 H
19 O 07-72 || 533-5| 43-4 || 536-2} 43-2 || W 4 0 18-47 || 541-1] 53-0 | 552-3) 53-7 || H
20 -0 07-92 || 531-6] 43-0 || 541-0| 42-8 || W bye) 17-96 || 5386:6| 53-3 570-0} 54-0 B
21 0 07-38 || 530-4| 42-7 || 544-1] 42-6 B 6 0 16-33 || 553-1} 53:5 || 564-6] 54-2 || W |
22" 40 07-87 || 527-0| 42-7 | 545-7| 42-8 | W 7c 0 13-23 || 550-6} 53-7 || 579-5] 54-3 | W
23° 10 10-48 || 523-7| 42.7 || 548-0) 43.4 || W 8 ot 08-32 || 543-9! 53-6 | 593-6) 54-1 W
16 0 0 13-91 || 525-5) 43-6 || 542-9| 44-5 || W 9 Ot 03-50 || 531-7] 53-5 || 574-2] 54.0 | W
Ie 70 16-45 || 523.3] 44-8 || 539-6| 45-7 H 10 Ot 01-59 || 533-1] 53-3 | 546-6] 53-7 || W
Py 19) 17-15 |) 531-8} 46-3 || 537-4] 47-1 ‘W ll O 08-80 || 538-0} 53-0 || 550-6] 53-2 H
3) (0) 16-23 || 535-4| 47-7 || 537-3) 48-5 ‘W 1A) 10-20 || 538-3} 52-8 || 544-7| 52-7 Jal
4 0 ERG) ||) ccoscc |) geen or Ww
Dyn) 15-18]| 538-4] 50-7 || 537-6| 51-2 | W 113} Ot 25 10-16|| 539-7} 52-4 || 539-1) 52-2 H |
6 0 13-22 || 541-6| 52-0 || 549-6] 52-2 H 14 Ot 07-89 || 536-2] 52-0 || 477-7] 51-7 H |
7 O 10-67 || 544-5} 52-8 || 557-7.) 52-8 H 15 ot 00-94 || 525-1} 51-7 || 482-0} 51-4 | H
8 0 09-29 || 543-9} 53-3 || 561-2) 53-0 || W i) (0) 08-41 || 521-3} 51-4 || 500-7] 51-0 || H
9 0 09-12) 539-9) 53.2 || 557-2) 53-0 || H 17 O 08:05 || 536-5} 51-0 | 485-3) 50-6 H
10 O 10-61 | 539-9} 52.9 || 548-3] 52.7 H 18 0O 05-60 || 534-1} 50-7 || 507-9} 50-2 H
1) 10-53 || 538-4| 52-5 || 544-4] 52.3 B 19 O 04-04 || 535-0} 50-3 || 521-8) 49-7 | W
P20 10-95 || 538-6! 52-0 || 540-6! 51-7 B 20 O 04-48 || 530-0} 50-0 || 526-2! 49.3 || W
DECLINATION. Magnet untouched, April 24—May 84.
BIFILAR. Observed 2™ after the Declination, s=0:000140. BALANCE. Observed 3™ after the Declination, s—0000100..
+ Extra Observations made.
April 164 954. The cotton cover of the bifilar magnetometer was replaced, having been removed at 134 15h.
MAG. AND MET. oBs., 1845. F
22 HovuRLY OBSERVATIONS OF MAGNETOMETERS, APRIL 18—24, 1845.
Gottingen | BIFILAR. BALANCE,
Mean Time || -DrEciriNna-
Gottingen BIFILAR. BALANCE.
of Declina- | TION, Cor- |Thermo-|} Cor- |Thermo-
Mean Time || DrecLiIna- a a
of Declina- TION. Cor- |Thermo-| Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter.
Observer’s
Initial.
Observer’s
Initial.
tion Obs. rected. | meter. || rected. | meter.
Sc. Div. F Mic. Div. °
540-3) 55-7 || 543-8) 56-8
545:9| 56-7 || 539-5| 57-4
544:0| 57-2 || 541-9} 57-9
544-6| 57-4 || 541-7! 58-0
540-2| 57-4 || 539-0} 57-7
538-8| 57-2 || 534-9] 57-3
542-4! 56-8 || 526-5] 56-7
535-6] 56-3 || 517-5
Mie. Div. 2
533-1| 49-2
531-0| 49.2
534-4] 49.5 |
527-1| 49-8 |
513-8| 50-4 |
515-3] 51-1 |
523-9| 51-9
527-9| 52.7 |
539-1] 53-2 |
541-2
555-7
557-4
534.2
540-2
543-4
| 529.9
MS Seeeow tht ew dws seed PERS to oo tl it |
Se ooo Solos
538-0| 55-7 | 521-3
535-8 -0 | 529-7
534.9 E 534-5
534-6 F 537-5
534-1 . 535-3
533-3 . 534-5
532.7 3 531-2
530-6 - 531-6
525-6
523-7
521-2
524-7
527-0
536-2
536-5
539-4
543-1
547-4
550-4
| 550-3
549-3
544-5
546-5
| 544-4
eocoocoqcooeocomemo woos:
434-0
467.2
514-8
524.9
525-4
522.6
529-1
547-1
552-7
558-2
557-1
550-3
| 538-8
542-0
546-3
540-3
534.5
534-1
544.0
552-0
552-5
549.2
540-7
| 533-5
+
bo
eo
Soqoeoococooceqcocoqoocoqooqce
540-5
542-6
542-4
| 540-3
| 536-0
536-5
535-6
534-1
530-6
522-7
523-4
523-7
525-1
537-4
528-4
565-5
547-1
560-7
545-6
544-5
543-4
542-0
540-1
538-6 |
0
0
0
0
0
0
8
0
0
0
0
0
3
0
0
0
0
0
0
0
3
0
0
0
1 Or Or CY Or cr Gr Or cr
aaa pag bee ee ere
ODM Nowra
9
=>
rer)
| 512-5
523-8
| 533-4
| 540-4
531-5 |
| 533-3
537-9
551-3
| 559-2
| 554-0
| 546-2
| 539-2
| 535-6
1 540-2
547-7
549.7! 55-9
gedsmnhinmm mmdod chm noOn med daadas OOMMnMnddddddade |
Sqooqooqoocoqooaooq*eos ooo oo ] 6 © 6
eye Ser eS SIS SS SSS SS)
DECLINATION. Magnet untouched, April 24—May 84.
Birinak. Observed 2™ after the Declination, s=0:000140. BALANCE. Observed 3™ after the Declination, s=0°000010.
+ Extra Observations made.
April 234 104-244 10h, erm-Day Observations made.
€
HovurRLy OBSERATIONS OF MAGNETOMETERS, APRIL 24—30, 1845. 23
Gottingen BIFILAR. BALANCE,
Morminnoe | DECLINA-.|\>— 5, I
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter.
Se. Div. 9 Mic. Div. 2
540-9} 52-6 || 529-9] 52-4
536-6} 52-2 || 532-7] 51-8
535-9| 51-8 || 535-6] 51-2
535-8} 51-3 || 539-8] 50-6
534-4} 50-9 || 540-6) 50-2
531-3} 50-4 || 543-0
531-9| 50-0 || 539-8
534-1] 49-7 || 513-1
06-46 || 534-4] 49-3 || 516-2
07-54 |) 525-7 : 514-2
13-22) 518-0 . §23-2
15-34 || 508-9 : 531-8
19-37 || 526-3 : 504-9
24-12 || 524-8 : 566-5
24.80 || 536-6 . 567°3
21-86 || 535-8 : 573-7
19-62 || 547-1 . 585-7
08-85 || 546-5 : 605-4
08-92 : : 592-2
09-42 : : 571-5
10:50 : . 570-4
06-93 : . 545-7
10-16 : [. 517-7
09-62 : 498-0
Géttingen BIFILAR. BALANCE.
Mean Time || DECLINA- :
of Declina- TION. Cor- Cor- |Thermo-
tion Obs. rected. . || rected. | meter.
Observer’s
Initial.
Observer’s
Initial.
© C Se. Div. Mie. Div. 2
25 04-79 || 520-4 4 | 613-1) 51-2
09-93 | 510-7| 51-3 | 514-4] 51-3
13-88 || 509-1 -4 | 518-5] 51-5
16-39 || 516-6 ‘6 | 518-9} 51-9
19-71 || 518-0 : 533-8] 52-3
19-46 || 530-1 : 557-9| 52-7
17-10 || 542-2 . 572-3 | 53-2
13-99 | 548-2 : 591-5} 53-8
13-23 || 550-1 3:5 || 581-6] 54.3
12-58 || 548-8 3-8 || 567-6] 54-5
08-79 || 541-0 . 559-4 | 54-6
08-01 || 544-4 . 555-3} 54-6
06-98 || 540-8 . 045:5| 54-5
11-89 || 536-9 . 932-5 | 54-3
11-52 || 538-5 : 525-3} 54-0
10-20 || 538-8 : 519-2} 53-6 |
du |
ececooeeoeoseoocooeoecocoosoeeoeseseoooos
Soocoooof Soe aco ooet
- 11-41 |) 543-5 3: 497-9} 53-2
06-97 || 536-0 -9 || 492-8) 52-9
09-10 || 532°4 : 495-1} 52-5
08-61 || 529-8 : 498-7| 52-2 |
08-48 || 530-7 . 502-1} 51-8
06-66 || 528-7 : 513-7) 51-4
06-73 || 525-0 . 522-9) 51-3
05:45 || 526-6 . 521-9) 51-2
05-97 || 522-6 . 915-4) 51-3
09-17 || 519-4 . 508-7 | 51-7
12-25 || 522-8 : - 52-2
15-89 || 526-0 2. }* 52-7 |
19-32 || 526-8 oy | ; 53-7
19-84 || 525-4 . . 54-7
17-91 || 524-1 : . 59-3
15-65 || 526-6 b : 56-0
13-54 || 534-5 . : 06:5
12-78 || 540-6 8 | . 56-6
11-30 || 546-8 : : 56-6 |
09-26 || 541-9 : 44. 56-5
10-25 || 540-4 : : 56-2
11-57 || 538-7 2 : 59:9 |
11-52 || 537-3 2 | . 55-5
11-10} 536-6
10-38 : 504-1
11-41 . 513-5
14-04 : 509-2
10-80 . . 516-4
09-77 : 3: 521-5
08-01 . 527-8
08-97 : 529-4
07-07 S 530-7
07-60 : : 534-1
09-42 . 529-1
12-51 . 525-8
16-57 3- 526-7
21-34 |) 521-1 . 523-7
21-97 | 531-0 : 516-3
20-18 || 540-1 . 519-6
17-34 || 547-8 : 522-3
15-52 || 550-0 : 531-2
13-66 || 545-1 : 538-3
11-79 | 552.3 . 535-1
10-28 || 554-6 ‘ 533-4
10-58 | 547.4 . 537-1
10-04 || 546-4 }° 531-7
10-54 || 541-0 . 524-0
10-56 || 539-3 . 523-7
bo
Rs)
cooompoqceqceqcoocoeqcoqoqcoqcoeqdcoase
10-95 || 537-0
10-90 || 536-1 : 4] 544
10-60) 534-8| 54- 9] 54-1
10-47 || 534-7] 53. -9| 53-8 |
10-18] 534-8] 53- 9| 53-5
09-49 || 534-0] 53- .9| 53-2 |
08-21 || 535-7) 53- 6| 52-9
06-76 || 531-9} 52-9 || 539-4] 52.7
07-79 || 526-2| 52-8 || 534.6] 52-7
10-50] 519-7| 52-8 || 528-7] 53.0 |
13-39 || 519-4] 53- 23-6| 53-5 |
15-01 | 521:5| 53-2 || 516-5! 53-7 |
17-70 | 523-7| 53-4 || 511-5| 54-0 |
17-22 | 532.2| 53-7 || 508-5| 54-4 |
16-89 | 529-9| 54-0 || 522-9] 54.7 |
14-17 || 532.1 55-0 |
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
|
0 |
0
59-73 || 529-5 . 265-5
59:37 || 545-4 : 426-3
O1-01 |) 535-4 : 483-4
57-53 || 529-0 . 465:8
21-32 || 487-6 . 231-3
05-49 | 524.8 : 359-2
02-50 | 523-6 : 476-3
04-19) 528-1 : 504-2
S30 ROM eee POOR se cRadalalalabaichc icc tc eckc choke catatatalalale
POW tnWweseeeee SSW WOW sss
|
SS oie (Store oS (SSS Sore
: DecLiInaTIoON. Magnet untouched, April 24—May 84.
BiFritar. Observed 2™ after the Declination,k=0-000140. BaLANcE. Observed 3™ after the Declination, s=0:000010.
+ Extra Observations made.
4 Hovurty OBSERVATIONS OF MAGNETOMETERS, APRIL 30—May 5, 1845.
Gottingen BIFILAR. BALANCE. * = Gottingen BIFILAR. BALANCE. on
Mean Time || DEcLINA- Piss || Mean Time’ |, DecLiNa- |————| |= = =a 3
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 3°2] of Declina- TION. | Cor- |Thermo-|| Cor- |Thermo-|| 3°E
tion Obs. rected. | meter. || rected. | meter. 5 = tion Obs. | rected. | meter. || rected. | meter. o*
Gl i ARG 9 if Se. Div. < Mic. Div. 2 GEE tie m..|| 2 f \| Se. Div. 2. | Mie. Div. 8
30 5 O |] 25 12-31]| 536-7) 54-7 || 531-7| 55.4 B 213 O || 25 10-63) 536-6| 53-3 || 525-9] 52-8 || W
6 0 11-62 || 541-7} 55-0 || 536-8) 55-7 || W | 14 0} 10-70 | 536-9| 52-8 || 527-3) 52-3 || W
7 11-01 || 552-2! 55-2 || 534-6] 55-8 || W } L510 10-36 | 533-9] 52-4 | 529-4) 51-8 | W
Ss) 10 13-50]| 551-5| 55-3 || 529-8] 55-8 || W 16 0 09-87 | 535-4| 52-0 | 529-5) 51-3 || W
S10; 11-75 || 553-7] 55-3 || 528-7) 55-8 || W 170 08-70 | 534-6) 51-7 || 530-9} 50-8 || W
OP 30r| 10-45 || 550-6| 55-2 || 529-4) 55-7 || W 18 0 06-74 | 531-9} 51-3 || 536-8) 50-4 || W
ite gs) 03-54 || 552-8| 55-1 || 483-7) 55.4 | H LOMO 05:05 | 531-3) 50-9 |) 541-3| 50-1 B
A Ot 25 07-76 || 538-1] 55-0 || 483-0| 55-5 || H 20 0 03-50 | 528-2) 50-7 | 537-1) 50-0 B
| 2140 04-75 | 527-6} 50-5 | 524-8} 49-9 || H
1k} ot 94 57-35 || 518-1] 54:8 || 409-1] 55-4 | H 22 0 07-47 | 526-5| 50-4 522-2; 50-0 || H
14 ot, 24 56-90] 533-2) 54:7 || 255-5) 55-2 || H 237-70 10:78 523-7| 50-4 || 520-1] 50-2 || H
15 Ot 25 09-08 || 507-9| 54-5 || 256-1) 55-0 || H so Obs0 13-37 || 520-3} 50-5 || 521-0|} 50-4 || B
16 Ot 08-52|| 516-1} 54-4 || 153-6] 54-8 || H 40 15-01 || 524-5] 50-8 |) 518-9| 50-8 || H
ily 0 | 07-47 || 534-8} 54-2 || 367-4) 54-6 || H 2 0 15-67 || 530-1] 51-1 || 527-0} 51-4 B
18 0O 14-37 || 524-9| 54-0 || 442-5) 54-3 || H 3m 0 13-90 || 532-2) 51-5 || 526-3} 52-0 || H
19% <0 09:00 || 529-8} 53-9 || 447-0| 54-1 || W 4. 10 11-91 || 536-5| 51-9 || 528-2) 52-5 || H
20 O 09-17 || 532-4] 53-8 || 475-6} 54-0 || W a2 50 10-18 || 541-0} 52-3 || 527-5] 53-0 | H
ZO) 15-29 || 522-1) 53-8 || 483-3] 53-9 B 6° 10 10-43 | 544-4] 52-8 || 532-3) 53-5 || W
22 0 13-83 || 522-2] 53-8 || 491-5| 54-2 || W T2200 10-30 || 545-9} 53-3 || 532-8} 54-0 || W
23, 10 16-90 || 526-8} 53-9 || 500-6| 54-5 || W $10 10-54 || 545-6| 53-7 || 529-3] 54.2 || W
1, FOes0 18-00 || 530-0} 54-3 || 504-8| 54-8 || W 9230 10-77 || 541-6| 53-7 || 525-3] 54-0 || W
i133 17-63 || 529-9} 54-6 || 519-6| 55-2 || W 100 11-08 || 543-3] 53-6 || 523-1} 53-7 || W
2010 18-11 || 537-1| 54-7 || 534-7] 55.3 || W Teo 11-25 || 541-7| 53-2 || 521-7] 53-1 H
3) (0) 16-92 || 534-5] 54-8 || 549-3} 55-4 || W 12750 11-08 || 543-1] 52-8 || 520-2) 52-5 || H
4 0 12-55 || 534-2) 55-1 567-5| 55-9 || W
5 6~O 11-10|| 542-2) 55-4 |] 571-3) 56-3 | W 413 0O || 25 11-10]] 539-8} 50-5 || 530-4| 49.9 B
6 0 10-60 || 546-7| 55-7 || 561-5) 56-4 | H 14 0 10-74 || 540-7| 50-1 || 532-4) 49.5 B
7 O 09-05 || 550-9| 55-9 || 558-5| 56-5 H ifs) (0) 10-63 || 540-0} 49-7 || 534-2| 49-0 B
8 0 10-61 || 543-0} 56-0 || 548-9| 56-5 | H 16 0 10-90} 540.0} 49.2 || 535-7| 48-5 B
9 0 11-17 || 538-6| 55-8 || 537-4] 56-1 | H W720 08-18 || 537-3] 48-8 | 538:5| 48-0 B
10 O 11-34 || 538-4] 55-4 || 530-9| 55-5 || H | 18 10 07-54 || 535-3] 48-3 || 545-1] 47-4 B
hil (0) 11-77 || 537-7| 55-0 || 527-5| 54-9 B 19 0O 06-14 || 531-3| 47-9 || 548-4] 47.2 || H
iy (0) 11-84 || 536-3] 54-6 || 526-6] 54-3 B 20) 70 05-96 || 527-5| 47-7 548-7| 47-0 || H
21 O 06-57 || 523-5] 47-5 || 543-3) 46-8 || W
13 0 || 25 11-71) 533-9) 54:1 || 527-6| 53-7 B 22510 10:06} 521-0| 47-4 || 544-7) 47-0 || H
14 0 11-14]) 533-2) 53-7 || 529-4| 53-2 B 23 0 11-81 || 521-6] 47-4 || 545-2| 47-2 || H
15 O 10-74 || 533-0} 53-3 || 5380-9} 52-7 B Hy Ord: 14-30 || 524-4) 47-5 || 541-9| 47-5 || H
iitoy (0) 09-86 || 533-0} 52-9 || 533-3] 52-2 B 1) 15:89 || 528-4] 47-7 | 534-3] 48-0 || H
ly 09-03 || 533-2] 52-5 || 536-0} 41-8 || B 2 60 15-76 | 535-0} 48-1 || 533-6) 48-6 || H
18 0O 07-54 | 531-8] 52-2 || 537-7| 51-3 || B 340 14-77 || 536-8] 48-5 | 535-7) 49-2 || H
19 305) 06-63 || 532-7| 52-0 || 536-9) 51-2 | H 4 0 13-46 || 541-7} 48.9 || 539-4) 49-6 || H
20 0 | 05-52 || 531-3) 51-8 || 540-1] 51-2 | H 5 60 12-13 || 543-6] 49.3 || 546-2) 50-0 || H
21 0O 07-20 || 529-9} 51-7 || 538-0] 51-2 | ‘W 6 0: 10-28 || 548-4] 49.9 || 555-5| 50-3 B
220 | 09-24 || 528-3] 51-6 || 537-1| 51-4 || H 7 10) 09-76 || 550-2| 50.2 | 558-6| 50-4 B
7B} | 10-85 || 526-2} 51-6 || 529-6) 51-6 H S30 09-80 || 547-5| 50-4 || 556:0! 50-5 B
2 (0) 0) 12-83 || 525-8] 51-8 || 521-5| 52-0 | H a0) 09-80 |) 543-8] 50-5 || 553-9| 50-5 B
1 O 14-57 || 526-7) 52-1 || 521-1] 52-5 | H LOO) 11-71] 542-1] 50-3 | 543-1 | 50-1 B
2H (0) 15:05 || 530-1] 52-5 || 526-1| 53-2 || H 1k 0 12-22 | 540-9] 50-0 || 538-2) 49-7 || W
31° © 14-50 || 534-1) 53-0 || 529-2) 54.0 || H 12 0 12-08 || 539-2] 49-6 || 537-5| 49-3 | W
Ay 70 13-22 || 540-3] 53-5 || 530-4| 54.6 | H | |
5 0) 12-01 || 541-4) 54-0 || 533-4] 55-0 | H 13 0 || 25 12-25 | 539-1] 49-3 || 538-0! 48-9 | W
6 O iy 10-94 || 543-8) 54-5 || 533-6] 55-2 | B 14 0O 11-46 | 537-6] 49-0 || 540-0} 48-5 || W
(ae) 10-01 |} 542-7} 54.8 | 532-5] 55-4 B 15° 4O))) 11-27 | 536-6] 48.7 542-0 | 48-2 || W
8, 20 09-86 | 543-1] 54-9 || 529-7] 55-3 B 16 0) 10-51 | 536-7| 48-4 || 544-6! 47-9 || W
a) (0) 11-03 || 539-9] 54-8 || 525-6] 55-0 || B LO 08-97 || 535-9| 48-1 || 548-7| 47-6 || W
10 O 11-03 |) 539-1} 54-5 || 522-8] 54:5 | B 18> 70" 06-19) 532-1| 47-9 || 554-7| 47-4 || W
ik 0) 10:63 || 537-7| 54-1 || 522-7| 54-0 || W 19 0O 04:55 || 529°7| 47-7 || 552-5| 47.2 B
12 0 10-56!) 536-3! 53-7 || 526-5! 53-4 || W | 207 10 04-51 | 527-7! 47-6 || 548-7! 47.2 B
DECLINATION. Magnet untouched, April 24—May 82.
Biriuar. Observed 2™ after the Declination. =0:000140. BaLaNce. Observed 3™ after the Declination, s=0-000010.
+ Extra Observations made.
Hourly OBSERVATIONS OF MAGNETOMETERS, May 5—10, 1845.
Gottingen BIFILAR. BALANCE.
Mean Time || DECLINA-
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter.
dd: eh. m. was 74 Se. Diy. e. Mic. Div. °
5 21 0 || 25 06-50] 525-1) 47-5 || 539-1) 47.3
22 0 10:36 |) 522-9| 47-5 || 546-7} 47-4
23 0 13-72|| 519-5| 47-6 || 541-9] 47.7
6 0 0 16-72 || 521-1] 47-8 || 538-5) 48-0
10) 17-70 || 528-5] 48-0 || 531-2) 48-5
2 0 15-52 || 537-4| 48-6 || 538-2} 49-0
3230 13-59 || 542-6] 49-0 || 538-6) 49-5
4 0 11-79 || 545-0} 49-5 || 544-8} 49-9
oy 20 10-50 |} 544-1| 49-9 || 548-3) 50-3
6 0 10-45 || 545-5] 50-1 || 547-2] 50-5
7a) 11-42|| 548-1) 50-3: || 542-9} 50-5
8 0 10-67 || 544-4] 50-2 || 542-7| 50-3
9 0 10-47 || 546-0} 50-0 || 540-1; 50-0
10 O 08-97 || 544.4| 49-9 || 536-0] 49-8
is 40 10-07 || 541-2} 49-7 || 529-1} 49-5
12 0 11-21] 540-3) 49-3 || 531-0} 49.2
13 O || 25 11-551|) 540-1] 49-0 || 532-1} 49-0
14 0 10-56 || 538-5} 48-8 || 536-7) 48-7
15 0 11-03 || 539-7| 48-5 || 536-8) 48.2
K6: -10 10-95 || 539.2} 48-2 || 538-6] 47-7
te 0 10-63 || 539-9| 47-9 || 542-4] 47.4
1s 0 08-21 || 535-8] 47.7 || 543-6} 47-1
19° 0 06:50 || 533-0| 47-5 || 549-4} 46.9
20 O 04-68 || 528:7| 47-3 || 549-1] 46.7
21 O 06:83 || 520-7] 47-1 || 541-6) 46-7
22 0 10-01 || 519-4) 47-1 || 538-5] 46-8
23 (0 13-59 || 520-4] 47-1 || 531-4| 47.0
7 0 0 17-02 || 520-:0| 47.2 || 531-2} 47.2
1 0 18-82 || 528-9) 47.3 || 533-7] 47-5
25 10 18-70 || 533-3) 47-6 || 536-6} 47-7
3.0 15-85 || 537-8| 47.7 || 545-2} 47-8
4 0 14-03 || 551-4] 47-7 || 549-8] 47-8
5 0 11-98 || 541-4) 47-7 || 561-0) 47-7
6 0 10°54 || 549-2] 47.5 || 553-6} 47.3
tae) 10-67 || 544-1] 47.3 || 554-2| 47-0
8 0 10-83 || 545-9} 47.1 || 549-6| 46-7
9 0 11-37 || 546-3] 46-8 || 543-8} 46.3
10 O 11-55 | 545-5} 46-5 || 544-5) 46-0
i 0 10-74] 543-4] 46.3 || 546-2} 45-7
12 0 11-00 || 541-0} 46-0 || 547-8} 45-5
13. O || 95 11-17|| 540-6] 45.8 || 550-0} 45-3
14 0 10-74 || 539-9) 45.6 |} 551-0] 45-0
15 0 10-90 || 539-6] 45-3 || 551-6] 44.7
16 0 10-27 || 539-2! 45.0 || 554-6] 44.5
7 9) 09-42] 538-6] 44.8 || 557-4| 44.2
18 0 07-00 || 535-4] 44.6 || 561-2) 43-9
19 0O 05-83 || 533-1] 44.4 || 560-6] 43.7
20 0 05-22 || 528-8) 44.2 || 561-5! 43-7
Pell 0) 06-37 || 524-5] 44.1 || 557-9| 44-0
22 0 09-29 || 521-8] 44.9 || 546-1] 44.3
23° 0 13-25 || 522-5] 44.6 || 539-5| 44-7
= 0 0 16-38 || 525-8} 44.8 || 530-5] 45.3
1*-0 17-56 || 531-3] 45-4 || 526-0] 45-8
74 (0) 17-58 || 538-2] 45-8 || 528-5] 46-3
oO 17-10] 543-7] 46-3 || 531-5} 46.8
4 0 16-36 || 543-6! 46.8 || 548-1] 47-5
DECLINATION. ‘Torsion removed,—May 84 34», — 3°.
BIFILAR. Observed 2™ after the Declination, k=0-000140.
MAG. AND MET. obs. 1845.
4ddeeeSen teow row wees sess sdddeesussM Mddessseereeed
Observer’s
Initial.
Gottingen
Mean Time
of Declina-
tion Obs.
ole Lae
8
Some Some Sor
ee OS SSS. S SiS SSS So oer aaa Sore:
—
SOON ADUF WWE
S939 Se SSeS SSS) S&S) SYS SS (Sy SSS)
12
DECLINA-
TION.
25
25
11-64
10-90
11-12
BALANCE.
10-70
Observer’s
BIFILAR.
Cor- |Thermo-|| Cor- |Thermo-
rected. | meter. |} rected. | meter.
Se. Div. e Mic Div. io
549-6| 47-4 || 554-0] 48-2 |
549-9} 47-9 || 558-6| 48-7
551-2} 48:4 || 556-0} 49-0 |
550-8} 48-7 | 547-4] 49-0
547-3| 48-6 || 541-5] 48.8
547-7| 48-4 || 534-0} 48-5 |
544-6] 48-1 531-9} 48-2 |
543-1| 47-8 || 529-6| 47-7
544-8 | 47-5 526-6| 47-2
543-1} 47-1 531-3] 46-8
542-5) 46-7 || 535-4] 46.4
542°1| 46-4 || 536-8} 46-0
539-8} 46-1 540:6| 45-6
535°8| 45-8 || 540-6} 45.3
532°8| 45-6 || 539-5} 45.0
519-1} 45-3 539-1} 44.9
525-2| 45.0 || 534-4] 44.8
523-2} 44-8 || 526-2) 44.7
526:5| 44-8 514-5} 44.7
528-0} 44-8 | 514-6} 45.0
533-0} 45.0 || 416-3| 45.4
538-6| 45.3 || 521-1] 45.8
537:3| 45.8 || 536-4| 46.8
543-6] 46-6 || 539-7| 47.2
549-2} 47-1 940-9} 47-7
549-8) 47-6 || 543-7] 48-0
551-0} 47-8 | 543-1! 48.2
549-9| 47.9 940-4} 48.2
547-6| 47-9 | 537-9| 48.2
545-1} 47-7 || 532-6] 48-0
543-0} 47-5 530-8) 47-7
546-4} 47-3 || 526-2) 47.5
541-1} 47-1 527-3| 47-3
042-1} 47-0 | 524-0} 47.1
539-5| 46-9 || 528-2} 47-0
539-8| 46-7 || 530-7! 46-8
538-4] 46-5 534-0} 46-5
539-1] 46-4 | 534-4] 46.2
538:8| 46-3 534-9| 46-2
536-0} 46-2 || 531-8] 46.2
531-9] 46-2 || 521-5) 46.3
528-2| 46-4 | 519-1] 46-6
524-8] 46-7 || 520-9] 47.1
523-7} 47-0 || 517-3] 47.5
526-6| 47-5 || 519-8] 48-0
531-4 |" 47-9 || 522-2) 48.5
535-4] 48-3 || 526-2] 48.9
544-6} 48-7 || 547-1] 49.3
548-8} 48-9 || 531-2} 49.5
990-1} 49-1 536:6| 49.7
552-6] 49-2 || 533-2} 49.5
547-5| 49-4 || 531-1] 49.9
545-2} 49-6 || 528-9} 50-0
544-6] 49-6 || 521-6) 49.8
541-2} 49.4 || 524-0) 49.6
540-6] 49.2 || 522-8) 49.3
bo
Or
Initial.
Sette eh seseseeeseaesesetite pes sess gdowwww |
BALANCE.
Effect of + 10° of torsion =
— 0°84.
Observed 3™ after the Declination, =0-000010.
al
Observer’s
Initial.
+ Extra Observations made.
26 Hovurty OBSERVATIONS OF MAGNETOMETERS, May 11—16, 1845.
Gottingen - BIFILAR. BALANCE. i. _ | Gottingen BIFILAR. BALANCE,
Mean Time || Decrina- 2 | Mean Time || Decrina-
of Declina- TION. Cor- |Thermo-| Cor- /|Thermo-|| &‘Z | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. rected. | meter. rected. | meter. ||5'~ | tion Obs. rected. | meter. || rected. | meter.
iy) 510 cs v Se. Div. o | Mice. Div. a a is ans Y f Se. Div. ° Mic. Diy. <
11 13 O || 25 04-31 | 533-7| 52-3 | 482-9) 52.5 || W | 13 21 O |) 25 06-84|| 526-3| 48-9 || 518-7| 48.4
14 0 06-59 | 535-6} 52-0 | 495-1] 52-3 || W 22) 0 10-33 || 523-8| 48-8 || 512-6] 48-7
15 0 08-75 | 538-9| 51-7 | 497-4] 51-9 || W 23 «(0 14-38 || 524-9| 49-0 || 506-2} 49-5
1650 09-08 | 538-2} 51-5 | 499-6] 51-5 || W414 0 O 18-23 || 523-6| 49-6 || 503-8} 50-3
Wea 07-40 | 535-9} 51-2 || 505-2] 51-0 || W 1f-0 20-62 || 529-5} 50-1 |} 504-1} 51-0
18 0 08-18 || 534-4] 50-9 || 500-9] 50-6 || W ZUG 19-95 || 536-6] 50-7 || 503-9] 51-5
19 O 06-19 || 535-2] 50-8 || 522-5] 50.5 || H 3.0 19:51 | 557-1] 51-2 || 505-9] 52-0
20 O 05-45 || 535-6| 50-7 | 508-9] 50-5 || H 4 0 17-96 || 549-5} 51-5 || 521-0] 52-5
21 O 06-86 |) 531-1} 50-7 || 497-6| 50-5 || H 5 0 16-75 || 548-5] 51-8 || 527-8) 52-6
22 0 08-82 || 530-4} 50-6 || 477-4] 50-7 || H 6 0 10-77 || 553-5| 51-9 | 549-8] 52-5
23 0 14-31 || 531-6; 50-7 || 483.9] 51-2 || H Fle 11-27 || 547-4} 51-9 || 545-8] 52-5
12 0 O 17-22 || 530-1] 51-0 || 489.7] 51.8 || H 8 0 12-02 || 551-3] 51-9 || 529-0] 52-4
1x0} | 18-72 531-8} 51-5 || 483-0] 52.4 || H 9 1G 12-11] 545-4| 51-9 || 521-1} 52-3
2 30 18-16] 538-8| 52-2 || 493.0] 53-0 || H 10 O 11-88 || 550-2| 51-8 || 514-4] 52-2
3 0 17-51 || 537-0} 52-7 || 498-6] 53-7 | H TH 10 13-41] 550-2] 51-7 || 511-1] 52-2
4 0 15-24 | 541-2} 53-0 || 509-0] 54-0 || H 12 OF 11-71 || 550-4} 51-6 || 492-9] 52-0
5 0 14:46 | 549-0} 53:3 || 518-4] 54.2 | H
6 0 13:43 || 554-2] 53-5 || 516-2} 54.3 || W 13° Of] 25 13-16) 549-7) 51-5 |) 461-1] 51-9
7 0 12.08 | 554-3] 53-7 || 510-3] 54.5 || W 14 0 09-20 || 539-9} 51-3 || 465-0} 51-7
8 0 12-40 | 552-8] 53-7 || 508-1] 54.4 || W 195 6 09-20 || 536-5} 51-2 | 483-1) 51-4
9 O 12-29 | 553-8] 53-7 || 505-5| 54-1 | W 16 0 07-58 || 537-7| 51-0 || 495-6] 51-1
HOP SO 11-66) 550-3} 53-4 || 503-6] 53-8 || W tie TO 06-46 || 538-3| 50-8 || 505-1} 50-8
LLERO 11-48 || 545-2} 53-1 || 503-5] 53.4 || H 18: © 04-24 || 536-9} 50-7 || 510-8} 50-5
12) 0 10:94 || 542-7} 52-8 || 500-0] 53-0 || H HS) (0) 05:97 || 535-6} 50-5 || 507-6) 50-3
20 0 06-90 || 535-4} 50-4 || 500-3] 50-3
3 0 || 25 10-77) 542-2} 52-5 | 501-8] 52-6 || H Alls (9. 10-77 || 531-0} 50-3 || 497-6] 50-4
14 0 10-48 | 541-2} 52-3 || 503-1] 52.2 || H 22 0 11-03 | 528-4] 50-3 || 491-4] 50-6
15 0 10-18 540-6] 52-0 || 503-6] 51-7 || H 23 «0 14-18 | 519-5| 50-7 || 489-7] 51-3
16 0 10-03 | 541-3} 51-5 | 504-8] 51-0 || H | 15 0 O 18-63 || 519-9] 51-3 || 490-5} 52-2
17 10 08-80 || 540-0} 51-0 | 511-6] 50-5 || H 1 0 21-50 || 526-1] 52-0 || 492.6] 53-2
18 0 07-85 || 540-4] 50-7 | 514-0] 50-0 || H 2° 0 20-96 || 529-3| 52-9 || 502-5) 54-2
T9550 07-34 || 537-4] 50-4 | 516-6] 49-7 || W SO 19-51 || 541-7} 53-8 || 501-2} 55-2
20 O 07-18 || 532-9} 50-2 || 518.4] 49-6 || W 4 0 17-76 || 546-9} 54-8 || 519-7} 56-2
Pall) 08-29 || 525-8} 50-1 || 517-6} 49-7 | W 5 10 15-51 | 554-7| 55-7 || 538-1] 57-1
22 0 10-11 || 527-7} 50-0 || 508-2} 49.9 || W 6 0 12-22] 558-3} 56-4 || 563-8; 58-0
23500 12-48 || 524-3] 50-2 || 494.6] 50-3 || W Tiel 09-96 || 553-7| 57-1 || 584-8} 58-5
i, 10) 0 15-39) 528-5] 50-4 || 484.7] 50-7 || W 8 0 09-49 || 553-8] 57-6 || 570-8} 58-5 |)
ow 18-67 || 543-1] 50-8 |) 475.4] 51-2 || W 9° 0 07-54 || 544-3] 57-6 || 556-5] 58-5 |
2910 19-89} 541-9] 51-2 |) 485.6] 51-7 || W 10 O 05-82 | 540-5] 57-5 || 526-3] 58-3
By (0) 19-39) 540-7] 51-6 || 498.0] 52-2 || W i1 0 07:55 || 538-7| 57-3 516-2| 58-0
4 0 16-21] 542-9] 52-0 || 507-7] 52-7 || W 12 0| 10-30] 539-1} 57-1 || 514-8] 57-8
5) 0 14-82] 547-6] 52-4 || 509.6] 53-2 |) W
6 0 10-92] 553-6] 52-8 || 516-2} 53-8 || H 13. 0 | 25 10-13 540-9] 57-0 || 513-0} 57-6
7 O 12-11 || 554-8) 53-2 || 518-5] 54.2 || H 14 0} 11-27 | 539-7| 56-9 || 511-0] 57-4
8 0 12-65 || 551-4] 53-6 || 516-0] 54-5 || H 15, “OF 10-11 || 537-0] 56-7 | 509-6} 57-2
2) 9) 12-62] 550-3) 53-7 || 511-8) 54-3 | H 16 0} 09-89 | 538-3] 56-4 | 510-4] 56-8
10 0 08-66 | 540-9} 53-7 || 511-2} 54-0 || H Lie 08-48 || 537-0| 56-2 | 519-3} 56-4
<0) 08-85 | 539-9) 53-3 || 506-0] 53-4 || D 18° OF 07-64 || 538-0} 56-0 | 524.4] 56-2
12% 0 | 07-24 534-9} 52-8 || 502-1] 52-8 || D 19 0 04-59 || 540-1} 56-0 526-4] 56-1
| 20 0'| 05-35 || 539-1] 55-9 || 520-4| 56-0
13 0 | 25 09-30) 535-2) 52-4 || 499.2] 52-4 || D 210 05-82 || 534-0} 55-9 | 510-7] 56-2
14 0 07-71 | 533-3| 52-0 | 491-6] 51-9 || D 22 0} 06-30] 521-3} 56-0 | 503-5| 56-4
15 0 11-10 | 539-7| 51-5 |) 449-8} 51-1 D 23) 708} 13-86 || 522-3] 56-2 | 499-5] 56-8
16 0 06:73] 548-6] 50-9 || 450-2} 50-2 | D|16 0 0. 15-20 || 530-9| 56-6 | 495-3) 57-6
17 0 07-15 | 536-2) 50-5 || 474-5] 49-3 || D Io 17-06 || 528-7| 57-4 || 497-9] 58-5
18 0 06-48 | 529-6) 50-0 || 500-1] 48-8 || D 2 0 20-65 || 538-8} 58-2 | 492.9} 59-5
19 0O 06-66 | 532-2} 49-5 || 516-4] 48-5 | H 3) 4) 21-51 || 531-7] 59-0 || 494-3] 60-3
20 O 07-35 | 528-8} 49-0 | 515-5! 48-3 || H 4 0 16-97 | 535-3! 59-8 ' 501-8! 61-1
DECLINATION. Magnet untouched, May 84—June 184.
BIFILAR. Observed 2™ after the Declination, k=0:000140. BALANCE. Observed 3™ after the Declination, s=0:000010.
Sa eeeeeurseseeerrrh assessor rooms seses to ts ts ot tt i |
a
Hovurty OBSERVATIONS OF MAGNETOMETERS, May 16—21, 1845. 27
Gottingen BIFILAR. BALANCE. 7. _| Gottingen BIFILAR. BALANCE. % “
Meaaeimren||) DEcnind= |---| Bs] Mean Time: || Decrana- |_| |-—__ PA
| of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-|| & ‘24 of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-|| $-e
tion Obs. rected. | meter. || rected. | meter. || S| tion Obs. rected. | meter. || rected.| meter. || 6 ~
d. m. 2 a Se. Div. S Mic. Div. 4 he ms ° 4 Se. Div. o Mie. Diy. ©
16 ot 25 22-03|| 578-4| 60-7 || 495-7| 62-0 || W 13 O || 25 11-27)}| 539-3} 49-8 || 529-6| 49-5 B
ot 15.47 || 528-6| 61-2 || 565-9} 62-5 B 14 0 11-30 || 537-6} 49-6 || 530-5| 49-2 || B
ot 13-49 || 543-3] 61-5 | 567-5] 62-7 || H 15 0O 13-02 || 538-5] 49-4 || 527-3} 49-0 B
0 11-84]| 548-2] 61-7 || 545-6] 62-7 || H 16 0 10-65 || 538-1] 49-2 || 523-5} 48-8 | B
0 11-79 || 548-5| 61-7 || 529-7| 62-4 || H ie 0) 08-29 || 537-7} 49-0 || 532-2] 48.5 B
0 10-41 || 545-9} 61-3 || 518-5] 61-7 || H 18 0 07-00 || 535-0} 48-8 || 537-7] 48.4 B
0 11-39 || 543-9} 60-9 || 512-5] 61-0 B 19 0 05-69 || 531-7) 48-7 || 543-4) 48-4 || H
0 541-2} 60-5 | 512-5} 60-4 B 20 0 05-63 || 526-2) 48-6 || 547-7) 48-3 || H
21 O 06-64 || 521-3) 48-5 || 550-9} 48-3 || W
0 541-4| 60-0 | 511-9 B 22 0 08-66 || 520-4| 48-4 || 539-5} 48-4 || H
0 539-1] 59-5 |) 516-8 B 23 0 12-82) 525.4| 48-5 || 527-3} 48-7 | H
0 || 536-8! 59-1 || 520-6 B 0 0 16-48 || 529-2} 48-7 || 520-6} 49-0 | H
0 537-2| 58-7 || 522.2 B 1 O 19-35 || 536-1] 49-0 || 518-9| 49-4 ||
0 635-1} 58-3 || 530-0 B 2, 70 21-29 || 542-3} 49-4 || 526-4) 49-7 || H
0 533-9 : 532-8 B a 10 21-39 || 543-7| 49-8 || 532-5} 50-3 | H
0 530-5 . 536-4 H 4 0 17-67 || 545-7| 50-2 || 536-6] 50-8 | H
0 526-3 : 535-3 H 5 0 15-12 || 545-6} 50-7 || 541-8) 51-5 | H
0 522.4 . 529-0 ‘W 6 0 12-98 || 552-0] 51-1 || 544-5] 51-9 B
0 521-6 : 520-4 H 7 O 11-81 |) 554-3] 51-5 || 5386-4] 52-1 B
0 523-0 . 503-7 H 8 0 11-35 |} 551-0} 51-7 || 529-6] 52-1 B
0 525-8 : 491-8 H 9 0 11-68 || 552-5] 51-6 || 527-4} 52-0 B
0 | 533-7 : 495.3 Jel 10 O 11-66 || 552-4] 51-4 || 519-6] 51-6 | B
0 541-8 ‘ 501-8 H 1G 76 10-87 || 545-3} 51-2 || 523-7| 51-3 || W
0 548-4 : 507:3 H 12 0 10-68 || 549-8} 50-9 || 516-3] 50-9 || W
0 565-1 : 505-0 H
0 552-7 . 517-8 H 13 0 || 95 07-67|| 535-7| 50-6 || 495-6| 50-6 || W
0 553-1 : §22.5 B 14 0O 07-67 || 534-4! 50-4 || 482-3} 50-3 | W
0 552-5 . 526-8 B 15 0 05-32 || 536-8} 50-1 || 490-4) 50-0 || W
0 551-8 : 524.7 H 16 0 06-46]! 538-1] 49-9 || 500-9} 49-6 || W
0 546-5 . 529.2 B 17 0 08-26 || 524-1] 49-6 || 516-5} 49.3 || W
0 541-8 . 527-2 B 18 0 09-69 || 530-2} 49-4 || 511-5} 49-1 || W
0 540-2 : 524-0 W 19 0O 05-97 || 535-8] 49-2 || 512-5] 48-9 B
0 533-5 : 532-1 WwW 20 O 06-29 || 528-6] 49-0 || 524-3] 48.7 B
21, 10 06-83 || 522-2) 48-8 || 522-8) 48-7 || H
Ot 540-9 : 445-1 H 22 0 09-37 || 521-1] 48-8 || 517-1] 48-7 || H
oT 522.7 : 372-8 H 25) 10 12-98 || 526.4] 48-8 || 516-1} 49-0 | H
Ot 533-4 . 403-5 H 0 O 16-12]} 529-5| 49-0 |) 519-0] 49-4 || B
ot 508-3 : 363-7 H 1 0 18-23 || 529-5| 49-5 || 527-5} 50-0 | H
Ot 526-7 : 379-0 H 2 0 17-73 || 536-0} 50-1 || 533-8} 50.8 B
Ot 527-7 : 451-1 H 3 0 17-29 || 542-7) 50.8 || 535-4) 51-7 |
8 522-6 : 495-7 ‘W 4 0 16-35 || 545-6} 51-5 || 542-3] 52.4 B
0 525-6 : 505-1 W 5 0 13-86 || 552-6} 52-1 || 545-1] 53-1 B
0 529-7 . 505-7 B 6 0 12-18 || 550-8] 52-7 || 547-4! 53-8 || W
0 11-69 || 530-7 . 497.9 W 7 +O 10-09 || 551-9} 53-1 || 548-2] 54-1 || W
0 15-22 || 521-8 . 496-7 W 8 0 10-75 || 550-5) 53-3 || 539-4] 54.1 | Ww
0 21-01 | 524.2 : 498.4 W 9 0 11-25 || 546-6] 53-2 || 530-6] 53-9 || W
0 20-99 || 522-5 : 506-4 WwW 10 O 08-85 || 548-5) 53-0 || 518-1] 53-5 || W
0) 19-81 || 534.7 . 518-2 W 11 0O 09-96 || 541-4) 52-7 || 509-5) 53-1 || H
0 17-46 || 541-0 -6 || 517-0 W LO 08-12 || 540-1} 52-5 || 499-0} 52-7 || H
0 17-56 || 547-3 : 528.7 W
0 15-47 || 544.4 : 536-5 WwW 13 0 || 25 09-76|| 536-0| 52-2 || 488-4] 52.3 || H
0 14:30 || 547-5 : 637-3 H 14 0 06-73 || 530-6| 51-9 || 486-4) 51-9 || H
0 13-02 || 549.0 : 537-6 H 15 0O 10-30 || 536-6] 51-6 || 484.7] 51-5 || H
0 11-74 || 551-1 ; 537-2 H 16 0 07-37 || 537-2} 51-3 || 497-5] 51-1 | H
0 11-51 || 543-5 . 537-2 H 17 O 06-56 || 535-6] 51-0 || 513-6] 50-6 || H
0 10-09 || 541-9 . 537-6 H 18 0 04-55 || 534-9| 50-7 || 519-6} 50-2 | H
0 12-11 || 541-4 : 533-1 B 19 O 03-57 || 534-8} 50-4 ] 522-8) 49-9 || W
0 0 02-62 || 524-5! 50-1 || 523-7] 49.6 || W
12-38 || 542-4 . 531-2} 49-7 20
; DECLINATION. Magnet untouched, May 84—June 184.
BirILaR. Observed 2™ after the Declination, s=0-000140. BALANCE. Observed 3™ after the Declination, s=0-:000010.
t+ Extra Observations made.
May 16419. The reading of the Balance is doubtful, to the extent of 5 mic. div., owing to an error in reading one of the micrometers.
HovurLy OBSERVATIONS OF MAGNETOMETERS, May 21—27, 1845.
28
Gottingen
Mean Time || DECLINA-
of Declina- TION.
tion Obs.
ds hs m. ° nd
21 21 5 || 25 05-06
2250 08-36
23 0 13-16
22 0 0| 15-71
1 O 18-75
74 (i) | 20-69
3.40 20-02
4 10 | 17-86
5) (0) 16-13
6 0 12-25
fo) 11-49
ts} (0) 10-98
9 O 09-96
10 O 02-99
HI GOT} 10-43
12 0 10-97
135 10) 2a 24:
14 0 11-59
50) 10-81
16570 10-78
7, ~ © 09-56
18 10 06-53
19 0O 07-27
PAN 0) 05-52
PHL 0) 05-70
Bp) (0) 10-07
DRY ~ (0) 14-13
23 0) 20 17-76
1 O 17-96
200 17-76
3.4 16-89
4 0 15-38
5 0 12-45
6 0 11-41
7 O 10-74
8 0 10-60
9 0 10-47
10 0O 11-07
1 10 10-00
120 11-41
13° 0 | 25 11-34
14 0 10-92
15 O 10-74
16 0 09-89
17 O 08-53
iS? 10 07-64
19 0 06-03
PRY = (0) 04-02
Pa 11-30
22) 10 14-46
23) 10 14-96
124 0 O 17-17
hee @) 18-40
2 0 17-74
3 (0 16-15
4 0 15-41
Observer’s
Initial.
MS dd odes Soe SS mide dmw |
BIFILAR. Observed 2™ after the Declination, s=0:000140.
BALANCE.
BIFILAR. BALANCE. % _:| Gottingen BIFILAR. BALANCE,
z-£| Mean Time || Drcura-
Cor- |Thermo-|| Cor- |Thermo-|| 3°3 } of Declina- TION. Cor- |Thermo-| Cor- |Thermo-
rected. | meter. || rected.| meter. || 5'~| tion Obs. rected. | meter. || rected. | meter.
Se. Div. * Mic. Div. 2 d. h. Mm, e: ‘ Se. Div. e Mic. Div. od
528-7| 49-9 || 521-6] 49-5 B | 24 5 O|f 25 14-26] 543-7) 49-7 | 527-0] 49-9
524-8) 49-9 || 521-9} 49-6 || W 6) 40 12-25 || 549-2} 49-8 || 527-7) 50-0
522-8] 49-9 || 513-9} 49-9 || W rie SY 11-05 | 552-2| 49-7 | 525-6} 49-9
527-8) 50-0 || 505-0| 50-2 || W 8 0 09-66 | 545-1} 49-6 || 530-1) 49-7 |
528-8| 50-2 || 507-1| 50-4 || W 970 10-16 | 543-7| 49-5 | 529-5) 49-5
527-8| 50-4 || 516-0| 50-6 || W 10 O 11-48 || 539-3| 49-3 | 525-0) 49-3
542-3} 50-7 || 516-:0| 51-0 | W 11F RO 11-88 | 539-7| 49-1 || 521-1] 49.2
555-3| 51-0 || 527-4] 51-5 || W 12 0 11-77 | 538-6| 49-0 | 520-0] 49-0
557-6| 51-5 || 548-8) 52-1 || W |
558-0| 51-9 || 572-5] 52-5 | W | 25 13 O || 25 10-67 |] 541-7] 48-6 | 522-1) 48-5
556-5} 52-2 || 571-4) 52.7 || H 14 0 10-28 || 541-6} 48.4 | 522:0) 48-2
554-8} 52-2 || 561-5| 52-7 || H 15 0 10-01 || 540-8} 48-2 | 523-1) 48-0
549-8} 52-1 || 549-3| 52-5 || H 16 0 09-73 || 541-5] 48-0 527-2| 47-8
538-6| 52-0 |) 534-8| 52.1 || H 7 0) 08-82 || 540-8| 47-8 } 532-:5| 47-6
540-0| 51-8 | 522-0] 51-7 B 18 0 07-81 || 539-4] 47-7 | 532:3| 47-3
542-7| 51-5 |} 518-7] 51-3 B 19 0 07-76 || 538-7] 47-5 | 531-5) 47-2 |
20 0 07-57 || 535-4] 47-4 || 534.2] 47.2 |
541-5] 51-2 || 521-0) 50-9 || B 21 0 07-22 || 529-8] 47-4 || 526-9} 47-3 ||
541-0] 50-9 || 523-9] 50-5 B 22) 10 07-67 || 524-3| 47-4 || 518-9| 47-4
539-6| 50:6 || 523-2} 50-1 B 23 0 10-23 || 524-8] 47-4 || 516-6| 47-4
537-0] 50:3 || 523-9) 49.8 B | 26 09%0 14-73 || 528-4} 47-4 || 514-8) 47-4
538-1] 50-0 || 520-2} 49-5 B 10 15-14 || 532-7] 47-4 || 513-8| 47.4
532-6} 49-7 || 521-7| 49.2 || H 2 0 15-41 || 536-9} 47-4 || 517-9| 47-5
531-2} 49-4 || 518-6| 49-0 | H 3 0 15-07 || 539-6] 47-5 || 521-9} 47-6
530-0} 49-2 || 515-6] 48-8 | W 4 0 14-26 || 543-4] 47-5 || 517-5) 47-6
525-6} 49-1 || 517-3| 48-7 || H 5) 0 12-95 || 543-6| 47-5 || 531-6) 47-6
523-6] 49-0 || 506-8) 48-7 || H 6 0 12:28 || 546-1} 47-6 || 532-8} 47.6
528-2] 49.0 || 497-3} 49-1 H 7 0 11-93 || 546-4} 47-5 || 533-7) 47-5
531-9} 49.2 || 494-7] 49-6 || H 8 0 11-79 || 546-6 | 47-4 || 533-1) 47-4
537-1) 49.6 || 489-0} 50-0 || H oo) 11-41 | 545-6| 47-3 || 531-7| 47-3
541-0] 50-0 || 498-9| 50-5 || H 10 0O 10-74 || 544-3} 47-2 || 530-0} 47-2
545-8] 50-5 || 512-3} 51-1 H Li 10-48 || 542-8; 47-1 | 528-4] 47-1
544-2} 51-9 || 523-0) 51-5 | H 12°70 10-30 || 542°5| 47-0 || 526-8| 47-0
549-9] 51-1 | 530-0) 51-7 || B
549-8| 51-3 || 534-4] 51-7 B 13 O || 25 10-48 || 543-4] 47-0 || 527-5| 47-0
551-2} 51-3 || 531-0} 51-6 B 14 0 10-60 || 542-8} 46.9 || 527-2) 46-9
548-5| 51-2 || 516-9} 51-4 B 15 0 10-54 || 543-1| 46-9 || 528-6| 46-9
547-8] 51-1 || 523-3} 51-2 B 167-10 09-96 || 542-2} 46-8 || 529-8} 46-8
548-8] 50-9 || 517-4) 50-9 || W We) 09-32 || 541-8| 46-8 || 531-5] 46-8
547-1] 50-7 || 513-6| 50-6 || W 18) 10 08-26 || 541-6| 46-7 | 534-6] 46-7
543-3] 50-5 || 513-9} 50-3 || W 19-0 07:72 || 541-3} 46-7 || 534-9] 46-7
20 0 07:31 || 537-6| 46-7 || 533-8| 46-7
542-3) 50-3 || 515-4] 50-0 | W 21 0 07-82 || 532-3} 46-7 || 528-5| 46-7
539-5] 50-0 || 519-5| 49-7 || W 22 0 08-38 || 529-2) 46.7 || 529-6] 46-9
538-5] 49-8 || 522-5] 49-5 || W 23 0 11-49 || 526-6| 46-9 || 524-5) 47-2
538-8| 49-6 || 526-1} 49-3 || W127 0 O 13-69 || 530-6} 47-1 || 512-5] 47-5
539-2] 49-3 || 528-4] 49-0 || W 1, 40 14-84 |} 533-1] 47-3 || 503-9] 47-7
537-1} 49-1 || 529-9} 48-8 || W 2 0 15-94 || 536-3} 47-6 || 512-8} 48-0
533-4] 48-9 || 528.9] 48-5 B 3. 0 16-32 || 540-7] 47-8 || 520-1] 48-3
520-8| 48-7 || 536-0} 48-4 B 4 0 15-45 || 543-1} 48.0 |) 531-2] 48-5
511-3| 48-6 || 532-0) 48-4 | H a0 14-50 | 545-0} 48-1 | 531-7) 48-5
514-8} 48-5 || 528-0| 48-4 || H 6 0 12-72 || 549-7] 48.3 | 531-5] 48-6
522.4| 48-5 || 521-6] 48-4 || B 7 O 11-28 | 550-7} 48-3 | 535-1] 48-7
530-1] 48-6 || 505-5) 48-6 || H 8 0 10-70 || 549-6| 48.3 | 537-2] 48-6
532-1] 48-8 || 498.5] 48-9 || H S50 10-67 || 547-5| 48-2 | 532-2) 48.4
538-3] 48-9 || 498-2] 49.2 || H 10 O 11-05 | 544-8] 48-0 | 528-3} 48.2
534-6} 49-0 || 507-6| 49-5 || H 1) 0 10-85 || 543-7] 47-9 || 526-2/ 48-0
537-41 49.4 " 525-1] 49-8 B T2020 10-56 || 542-9! 47-8 || 523.9| 47-8
DECLINATION. Magnet untouched, May 84—June 184,
Observed 3™ after the Declination, s=0°000010.
Hovurty OBSERVATIONS OF MAGNETOMETERS, May 27—JuNE 2, 1845. 29
Gottingen BIFILAR. BALANCE, H _:| Gottingen BIFILAR. BALANCE. * a
Mean Time || Decrina- P=] Mean Time || DEcrina- aie
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|) 2°g | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 3 °s
tion Obs. rected. | meter. || rected. | meter. S aa tion Obs. rected. | meter. || rected. | meter. 5 7
d. m. £ 4 Se. Div. is Mie. Div.| P. d. m. g 4 Se. Div. ° , || Mie. Div. 2
27 13 0 || 25 10-16|| 541-6) 47-6 || 524-0] 47-6 | H } 29 21 0} 25 08-18]| 531-5] 49-0 || 507-5] 48-9 || H
14 0 10-58 || 542-8| 47-4 || 523-8) 47-4 || H 22enO 08-75 || 525-0| 49-0 |) 504-8] 49-2 || H
15 0 09-89 || 542.1] 47-2 || 525.4) 47-2 || H 23 0 10-33 || 523-4| 49-2 || 497-9] 49-7 || H
16 0 09-47 || 542-8| 47-0 || 526-6] 47-0 | H | 30 0 O 13-30 || 529:-4| 49-8 | 500-6] 50-5 || H
17 0 08-52 || 542-9} 46-9 || 530-3} 46-8 || H ew 16-25 || 537-4| 50-4 || 499-4] 51-3 | H
18 0 07-40 || 542:4| 46-7 || 528-4| 46-6 | H 2750 18-10 || 542-9} 51-2 || 496.2} 52.2 || H
Loe 0 06-98 || 542-8| 46-6 || 527-4) 46-4 | W 5) (0) 18-00 || 540-6| 52-0 || 496-8] 53-0 || H
ZORO 06-91 || 537-6 | 46-5 || 531-5| 46-3 || W 4 0 16-08 || 542-3} 52-7 || 502-3} 54-0 || H
Zl 0 07:31 || 534-6| 46-5 || 529-2} 46.4 || B 5) | 0) 13-90 || 541-8} 53-3 || 509-8| 54-5 || H
220 08-68 || 530-1! 46-6 || 525-9| 46-7 || W 6 0 13:07 || 554-1| 53-7 || 511-3] 54-8 || W
Poh (0) 11-71 || 528-9| 46-8 || 518-4] 47-1 | W 7 O 12-02 || 565-2} 53-9 || 513-1| 54-8 || W
28 0 0| 13-77 || 529-6| 47-2 || 506-2! 47-6 | W te) (0) 07-60 || 557-2| 54:0 || 537-7] 54-8 || W
togO | 14.98 | 536-6) 47-7 || 504-5] 48-3 | W 9 O 07-62 || 547-6| 54-0 || 540-2) 54-6 || W
2 «0 15-29 || 539-0} 48-3 || 513-7| 49-0 | W 10 O 10-36 || 542-0) 53-8 || 530-4) 54-2 || W
3) (0) 15-09 || 541-8| 48-9 || 516-2} 49-7 | W ih 07-13 || 534-3} 53-5 || 522-4) 54.0 B
4 0 14-06 || 545-4) 49-6 || 522°2| 50-3 || W T2570 03-70 || 530-8} 53-3 || 508-4] 53-7 B
a0 12-51 ]] 548-3] 50-2 |) 524-2} 51-0 | W
6520 10-53 || 551-8) 50-8 || 527-4) 51-6 | H 13 0 | 25 05-27 || 533-0} 53-0 || 490-2} 53-5 D
ie 10 09-35 || 551-7| 51-2 || 528-6| 51-7 | H 14 0 05-45 || 536-6] 52-8 || 461-6] 53-3 D
S00 10-09} 551-5) 51-3 || 525-6) 51-7 || H 15p 0 02-82 || 535-7| 52-6 || 444-4] 53-0 || D
9 0 10-54 || 551-2} 51-2 || 521-9] 51-5 || H 16 0 03-81 || 534-2} 52-4 || 455.0] 52-6 D
Loy 0 10:53 || 548-3} 51-0 |. 517-9| 51-1 || H 7 0} 10-53 || 530-3] 52-2 || 472-8] 52-3 D
it: <0 11-17 || 546-9| 50-7 || 514-0} 50-6 |] B 18 0 03-87 || 540-8} 52-0 || 458-0] 52-0 || H
12 0 11-46 || 546-5| 50-4 || 509-5| 50-2 | B 19 0 04-14 || 540-9) 51-9 || 479.9) 52-0 || H
20 O 04-91 || 524-6; 51-8 || 488-5] 52-0 || H
13 0 || 25 10-63] 544-4] 50-0 || 508-4] 49-8 B 210 13-57 || 516-5} 51-8 || 491-1] 52-2 | H
14 0 10-54 || 542-8} 49-7 || 5C9-7| 49-4 || B 22; 0 14-98 || 523-6] 51-9 || 476-8] 52.4 || W
tay 30 10-20 || 541-5} 49-4 || 511-7| 49-0 || B 23 O 18-14 | 527-7| 52-2 || 471-6] 52.9 |) W
16 0 09-67 || 541-6) 49-1 || 514-8] 48-6 | B | 31 0 O 20:09 || 517-7| 52-7 || 481-1] 53-6 || W
70 07-94 || 542-1) 48-8 || 519-6] 48-3 B 1 O 24.55 || 523-7} 53-2 || 486-3] 54.5 || H
sys 30) 07-49 || 542-7| 48-5 || 519-8) 48-0 B 2,40 29-93 || 5381-5] 54-0 || 500-6] 55-5 || H
19 0 07-32 || 542-0} 48-2 || 518-4| 47-7 || H 3 0 31-52 || 534-6] 55-0 || 520-8] 56-6 || H
20 O 07-07 || 538-4} 48-0 || 518-5) 47-5 || H 4 0 24-73 || 539-1] 56-1 || 546-1] 57-7 B
2A) 0 07-24 | 532-8) 47-9 || 516-7] 47-5 || W 30 17-06 || 545-7| 57-0 || 548-4] 58-5 B
22, 0 08-45 || 529-7| 47-8 | 507-0| 47-5 || H 6 0 14-40 || 544-2} 57-7 || 544.0] 59-0 D
23 0 10-25 || 532-8] 47-8 || 497-7| 47-7 || H “a Y 11-96 || 539-6| 58-3 || 543.2} 59-5 D
29 0 O 13-52 || 531-5| 47-9 || 492-6) 48-0 | H 8 0 11-39 || 544-4] 58-6 || 524-7} 59-7 || W
1 0 16-12 |) 533-4] 48-2 || 490-0} 48-5 || H 9 0 09-66 || 546-3| 58-8 || 525-5] 59-8 B
2) 40 17-94 || 536-1] 48-6 || 492-4| 49-1 || H 10 O 10-92 || 544-8) 58-7 || 524-9] 59.7 | W
3 0 17-39 || 541-5} 49-1 || 499-9| 49.7 || H 11 O 11:44] 547-0! 58-3 || 511-9] 59.0 B
4 0 15-12 |) 545-4} 49-8 || 515-1) 50-5 || H 12750 10-25 || 537-4| 57-9 || 480-6] 58-3 B
5 (0 13-25 || 549-5] 50-3 || 523-3) 51-0 | H
6 0 11-17 || 551-2] 50-8 || 526-5) 51-5 B 113 O | 25 11-64} 541-6) 58-0 || 505-7] 58-3 || W
a0 10-16) 551-4] 51-1 |) 522-8} 51-8 | B 14 0 11-14 || 540-4) 57-8 || 505-8} 58-0 || W
8 0 10-83 || 552-1] 51-3 || 517-2} 51-8 | B Toy 50 10-09 | 538-8} 57-6 || 507-6] 57-8 || W
@) 0) 11-24 |) 550-1} 51-3 || 514-9] 51-6 | B le © 10-23 || 536-9; 57-4 || 509-7| 57-6 || W
10 0 10-21 || 550-5] 51-1 || 511-3] 51-3 B 17 O 08-79 || 537-2| 57-2 || 515-2] 57-3 || W
15 0) 11-14 || 544-4} 50-9 || 511-5] 51-0 | W 18 0O 08-66 | 538-1) 57-0 || 506-7} 57-1 W
12 0 10-98 || 543-9] 50-7 || 507-4} 50-6 | W 19 0 09:96 || 537-6| 56-9 || 508-9] 57-0 || B
20 0 06-06 || 536-9} 56-8 || 506-8] 56-8 B
13 0 || 25 13-56 || 544-8) 50-4 || 497-3] 50-3 || W PAL (0) 07-81 || 534-3| 56-7 || 506-7] 56-9 || H
14 0 09-89 || 544-5) 50-1 || 491-8} 50-0 | W 22 0 09-67 || 531-5] 56-8 || 505-8} 57-3 || H
15 0 05-89 || 535-9! 49-9 || 487-2} 49-7 || W 23 0 11-64 || 530-6] 57-2 | 505-0] 57-7 || H
16 0 04-34 || 538-4] 49-7 || 497-2] 49.4 || W 2 0 0 14-94 | 537-4] 57-7 || 498-0) 58-3 || H
ue 0 04-35 || 540-6| 49-4 |) 506-6| 49-1 || W 1 0 16-82 || 543-3] 58-2 || 488-6} 59-0 | H
18 0 03-87 || 540-0} 49.2 || 509-7} 49-0 | W 2 0 16-18 || 543-6} 58-7 || 494-0| 59-4 B
19 0 04-19 || 539-9} 49-1 || 510-0) 48-9 || B 3 0 15-47 || 543-0} 59-1 || 500-3) 59-9 B
20 O 05-82! 537-0| 49-0 || 523-7! 48-8 || B 4 0 14-20 || 547-9! 59-5 || 503-3] 60-4 || H
DECLINATION. Magnet untouched, May 8’—June 184.
BIrILaR. Observed 2™ after the Declination, k—0:000140. BALANCE. Observed 3™ after the Declination, s=0-000010.
May 304 10314 105. Term-Day Observations made.
MAG. AND MET. oBs. 1845. a
30 HourLy OBSERVATIONS OF MAGNETOMETERS, JUNE 2—6, 1845.
Gottingen BIFILAR. BALANCE. % -i| Gottingen BIFILAR. | BALANCE. - =
Mean Time || Decrina- || | —_ | 2. 8 | Mean Time || Decurna- TE pee iar &
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2° | of Declina- TION. Cor- Thermo-| Cor- |Thermo-|| $°2
tion Obs. rected. | meter. || rected. | meter. || 5“ | tion Obs. rected. | meter. | rected. | meter. || 5 ~
d. A co v Se. Div. ¥ Mice. Div. 3 daw ebae) |a0s, e “ Se. Div. | Y | Mic. Diy. © hae
2 5 O|| 25 13-03]| 541-7| 59-9 | 515-3| 60-6 || B 4 13 0 || 25 11-49|| 538-7! 55-2 | 484.9] 55-1 || W
6 0 11-77 || 541-8} 60-0 || 517-8] 60-8 || W 14 0 08-53 || 536-2) 54-9 | 492.7| 54.7 || W
“a w 10-54 || 546-6| 60-1 || 519-9} 60-8 || W L540 10-16 | 535-4 54-6 | 505:9| 542 || W
8 0 10-83 || 545-3| 60-2 || 518-0] 60-9 || W 16 0 11-84 |) 538-2) 54-2 | 512-5| 53-8 || W
9 0 10-65 |) 543-3) 60-2 || 518-6) 61-0 | WwW 17 0 07-82 || 538-0! 53-9 | 525-0| 53-5 || W
I@ © 10-58 || 542-0} 60-1 || 516-4] 60-6 || W 18 0 04-71 || 537-4! 53-7 || 535-0] 53-2 || W
LO 10-03 || 543-8] 59-8 || 508-1] 60-0 || H 19> 30 05-70 || 535-8) 53-4 | 536-2] 52.8 B
12 0 11-03 | 541-5| 59-4 || 514-1) 59-5 | H 20 0 06-61 | 533-4| 53-1 | 536-6| 52-7 || B
| 21 0 05-92 || 521-4) 52-9 | 527-4| 52-7 || H
13 0 || 25 10-03 || 540-7} 58-9 || 506-6] 58-9 || H 220 10 12-33] 524.0! 52-8 | 520-4] 52-7 || H
14 0 10-50 || 537-7| 58-4 || 509-1} 58-3 || H 23 0 13-32 || 528-9 | 52-8 | 514-3} 52-9 || H
157 705) 11-19 || 537-9} 58-0 || 510-4] 57-7 || H 5) (OP 50 15-34 || 534-0 53-0 | 506-0} 53-2 | H
16 0| 09-98 || 536-6} 57-6 || 513-2} 57-1 || H 1 O 17-93 || 539-6) 53-3 | 507-8) 53-7 B
VO) 09-35 || 536-3} 57-2 || 518-6! 56-5 || H 250 17-12 || 545-3| 53-7 | 511-4] 54-5 || H
18 0 08-31 || 535-5] 56-8 || 521-5] 56-2 || H 3: 0 17-49 || 547-0, 54-4 | 512-0} 55-5 || H
19 O 06-48 || 536-5| 56-5 || 525-0| 56-0 || W 4 0 16-35 || 544-1) 55-2 | 516-8| 56-2 || H
20 O 07:07 || 532-4] 56-3 || 523-9] 55-8 || W piG 14:46 || 552-7| 55-8 || 522-9| 56-6 || H
PAB) 08-45 || 530-1} 56-1 || 520-4} 55-9 B 6 0 13-70 || 550-6) 56-3 | 531-0| 57-0 || W
22) 50 09-84 || 529-9] 56-1 || 510-3} 56-3 || W Te 12-01 || 545-6| 56-6 / 528-7| 57-4 || W
23 0 11-00 || 525-6] 56-3 || 492-0} 56-7 || W 8 0 11-68 || 546-7| 56-8 | 522:3| 57- W
370 @ 14-01 || 528-4) 56-7 || 485-5] 57.2 || W 9-0 10-67 | 546-6} 57-0 | 514-0) 57-9 || W
LO) 17-24 || 536-7} 57-2 || 491-3) 57-8 || W 10 O 10-18 || 549-7} 57-2 || 508-1] 58-0 || W
Py PA 16-95 || 545-2} 57-7 || 499-1] 58-3 || W 1-0 09-22 || 544-6) 57-2 | 510-3] 58-0 || H
3 0 15-98 || 550-7} 58-2 || 507-0| 58-8 || W ) 09-76 || 544-9) 57-3 | 510-8] 58-1 H
4 0 14-71 || 547-4} 58-7 || 521-4] 59-3 || W |
5 0 12-73 || 544-2} 59.0 || 526-2} 59-7 || W 13 O |] 25 09-73 || 546-6| 57-3 || 500-8} 58-0 || H
6 0 10-83 || 543-3] 59-2 || 519-2} 59-8 || H 14 0 09-86 || 546-3] 57-2 || 503-0| 57-6 || H
(aa) 10-45 || 543-8} 59-3 || 513-7] 59-8 || H 15°"0 09-19 || 543-9| 57-0 || 492.4| 57.2 | H
8 0 10-90 || 543-1} 59-2 || 504-2) 59-7 H 16 0 07-74 || 534-1] 56-7 | 502-0| 56-7 || H
9 0 10-83 || 543-5} 59-0 || 502-2} 59-5 H 1p30 05-65 || 541-8) 56-4 || 501-4) 56-3 || H
10 0O 11-10|| 545-1] 58-7 || 497-2] 58-9 || H 18 0} 05.45 | 539-7| 56-1 || 507-8| 56-0 || H
11 O 11-22] 544:0| 58-4 || 497-9] 58-3 B 19 O 05-43 || 539-3| 56-0 || 514-2} 55-9 || W
12) 0 11-03 || 543-3} 58-0 || 500-0} 57-7 B 20 O 05-35 || 535-3) 56-0 || 519-3) 56-1 || W
21530 05-60 || 527-6) 56-0 || 523-4| 56-4 || B
13. O || 25 10-74|| 542-1| 57-6 || 502-9] 57-1 B 22. 0 07-07 || 525-3) 56-2 || 517-9| 56-7 || W
14 0 11-10 || 540-7 | 57-1 || 506-1) 56-5 B 23 0 10-67 || 526-0| 56-5 | 512-2| 57-0 | W
15 O 10-95 || 540-8} 56-6 || 507-2] 55-8 B 6/0 0 15-20 | 528-3| 56-8 || 501-1| 57-4 || W
16 0 11-03 || 540-0} 56-1 || 512-2) 55-2 B 1 0 17-51 || 530-1} 57-1 || 492-3| 57-8 || W
V7 0 12-51 || 536-7] 55-6 || 512-2} 54-6 || B 2' 30 18-01 | 535-7| 57-4 || 493-6] 58-0 || W
18 0 10-98 || 537-6| 55-2 || 506-4) 54:3 B 3 0 18-74 || 539-3| 57-6 | 495-4) 58-2 || W
19 30 | 04-61 || 537-9} 54-9 || 515-2} 54-2 | H 4 0 17-60 | 548-3! 57-8 | 495-1] 58-4 || W
20 0} 04-71 || 537-9| 54-8 || 517-6| 54-2 | H 5 0 15-32 || 546-2! 58-0 | 507-9| 58-6 || W
Pall (0) 06-06 || 534-8) 54-7 || 526-9| 54-2 || W 6730 12-65 || 552-2} 58-2 | 513-8| 58-8 || H
22 01 09-06 || 534-1) 54-7 || 525-9| 54-4 | H 30 11-27 || 550-3} 58-2 | 515-7] 58-7 || H
2B) (0) 15-25 ||. 535-7 | 54-7 || 512-4| 54-7 || H 8 0| 10-83 || 552-7) 58-1 | 514-4] 58-5 || H
4 0 0 20-15 || 534-7| 54-8 || 501-3) 55-2 H 9 0} 10-27 || 548-6| 58-0 | 513-5} 58.4 || H
10) 22-15 || 550-3} 55-0 || 497-4] 55-7 || H 10 0 10-28 || 551-1| 57-8 | 505-6] 58-2 || H
20) 15-12|| 535-4| 55-4 || 511-1] 56-2 || H ES (0) 10-80 || 545-9| 57-6 | 503-8] 57-8 || B
3-0; 19.24 || 558-3) 55-8 || 520-8) 56-5 | H 12 0 10-45 || 550-8} 57-4 | 499-7| 57-4 || B
4 Ot 19-51 || 533-7] 56-0 || 553-1] 56.6 | H
5) ot 17-12 || 547-9| 56-2 || 571-8} 56-7 || H 13° 0 || 25 09-02) 548-6| 57-1 | 500-5} 57-0 || B
0) 15-31 || 554-4) 56-2 || 580-0} 56.7 || B 14 0 08-46 || 545-9} 56-9 | 504-3} 56-7 B
he © 12-35 || 543-5] 56:3 || 578-1] 56-7 | B 15 0 08-03 |) 545-0] 56-6 | 506-1) 56-4 || B
8 0 12-26 || 546-3} 56-4 || 565-6} 56-8 || B 16 0 06-83 || 544-4) 56-3 | 511-0} 56-0 || B
2) 12-11 || 547-8} 56-4 || 549-5] 56-8 || B 17 0 06-39 || 543-2} 56-0 | 515-6] 55-7 || B
10 O 08-32 || 541-6} 56-2 4) 538-2) 56-4 || B 18 0O 04-42 |) 539-3) 55-8 | 519-4] 55-5 || B
i) 09-46 |} 547-0} 56-0 | 516-6| 56-0 || W 19 0 04-37 || 533-8) 55-6 | 525-1] 55-4 || H
¥2) 0) | 08-99 || 533-6} 55-6 || 500-7) 55-5 || W 20 O 04-41 || 530-9| 55-4 | 529-9| 55-3 || H
DECLINATION. Magnet untouched, May 8’—June 184.
BIFILAR. Observed 2™ after the Declination, s=0-000140. BALANCE. Observed 3™ after the Declination, k=0°000010.
+ Extra Observations made.
Gottingen BIFILAR. BALANCE. % = Gottingen BIFILAR. BALANCE. % re
Mean Time || DEcLINA- ——————|| 2 = | Mean Time || Decuina- |-——————_— aes
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- 28 of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2 ‘2
tion Obs. rected. | meter. || rected. | meter. || © tion Obs. rected. | meter. || rected. | meter. S Bs
Gl ie je f Se. Div. bg Mic. Div. Se dad oh m. 3 4 Se. Div. a Mie. Diy. ®
6 21 0 25 05-421! 525-9] 55-4 | 524-5] 55-5 / W]10 5 O | 25 15-58]! 552-3] 60-8 || 481-0] 61-9 | H
220 08-72 || 523-6| 55-5 || 515-3) 55-8 || H 6 0 13-63 || 553-6| 61-4 || 496-3) 62-5 || B
23 0 14-24|| 523-5] 55-7 || 505-9; 56-2 | H ia 12-01 || 565-4| 61-9 || 506-7) 62-8 || B
7:0 +0 17-54 || 528-1] 56-2 || 491-6) 56-8 | H 8 Ot 07-05 || 560-1] 62-2 || 536-6] 63-0 || B
eo 19-95 || 537-1| 56-8 || 483-0] 57-7 || H S10 11-34 || 547-9) 62-3 || 536-8] 63-0 || B
2 0 20-83 || 540-9| 57-6 || 486-4| 58-7 | H 10 O 11-61 || 549-8} 62-3 || 522-0) 63-0 || B
a2 20-33 || 547-3| 58-4 || 485-3] 59-7 || H Wil @) 11-48 || 549-7] 62-3 || 508-2| 62-9 || W
4 0 18-13 || 548-7| 59-2 || 491-0| 60.5 | H 12 0 09-73 || 546-0} 62-2 || 504-1} 62-7 || W
5°10 15-98 || 548-7] 59-8 | 498-2] 61-0 | H
6 0] 13-74|| 551-2| 60-2 || 502-7} 61-2 || B 13 O || 25 10-36 || 542-1] 62-0 || 501-6) 62-4 || W
7 0 . 12-26 || 554-0) 60-6 || 510-1| 61-4 | B 14 0 10-25 || 541-2) 61-7 || 505-6| 62-0 || W
8 0 11-37 || 553-9| 60-7 || 510-2) 61-4 | B 15 0 09-79 || 540-3] 61-5 || 502-8] 61-7 || W
9 0 10-92) 550-9} 60-7 || 511-2} 61-3 B 16 0 08-21 || 541-3} 61-2 || 504-3} 61-4 | W
10) 0 11-82) 546-0] 60-6 | 504-1| 61-0 | B iin 0 07-42 || 543-2! 61-0 || 509-5} 61-1 | W
1b 0 08-88 || 543-3| 60-4 || 502-1} 60-8 || W 18 4 07-89 || 539-7| 60-7 || 513-1} 60-8 || W
12 0 09-46 || 541-6} 60-1 || 501-1; 60-5 | W 19 O 08-48 || 538-0] 60-7 || 515-2} 60-7 | B
20 5 09-54 || 532-1} 60-7 || 513-0} 60-9 | B
8 13 Of| 25.07-78|| 539-9] 57-2 || 479-5| 56-8 H mA” (0) 12-15 || 529-3) 60-8 || 508-3} 61-2 | H
14 0 | 05-22 || 531-0} 56-8 | 475-6| 56-3 | H 22 0 16-43 || 527-7) 61-0 || 504-9} 61-5 | H
15 0 05-89 || 537-4) 56-3 | 482-8| 55-8 | H 23 0 13-29 || 526-8} 61-5 || 502-3] 62.2 | H
160 05-25 || 538-5| 55-9 | 480-7) 55-3 || H | 11 0 0 16-16 || 528-4) 62-0 || 484-3] 62-8 | B
iy a0) 03-65 || 538-4| 55-6 || 490-1) 55-1 H i 0) 15-94 || 533-7| 62-6 || 473-1] 63-5 || H
18 0 02-66 || 537-2| 55-4 | 494.6| 55-0 | H 2.)'O 17-53 || 538-5] 63-3 || 481-2} 64-3 || B
19 0 03-16 || 536-9| 55-4 | 498-0] 55-0 | W 3.0 18-58 || 541-4] 64-0 || 487-5} 65.2 || B
20 O 04-10 || 537-2| 55-3 | 495-8} 55-0 | W 4 0 17-29 || 554-3] 64-9 | 497-6| 66-2 | B
21.0 07-05 || 530-3} 55-4 || 487-2] 55-2 |) B 5 (=O 18-10 || 544-2} 65-8 || 525-5} 67-0 || B
22720 08-92 || 523-9| 55-4 || 486-9] 55-5 | W 6 0 15-94 || 542-0} 66-6 || 534-3} 67-7 || W
23 0 13-52 || 522-5| 55-6 | 487-4| 55-8 | W iW 12.48 || 549-2} 67-0 || 533-5] 67-9 || W
9 0 C0 16-21 || 528-7| 55-8 || 486-1) 56-2 || W Smo 11-82 || 548-7) 67-6 || 527-2} 68-3 | W
Uo) 20-22 || 533.0} 56-0 || 484-6| 56-5 | W 9 3 10-80 || 546-8; 68-1 || 521-8; 69-5 || W
20 21-97 || 538-1| 56-4 | 486-5| 56-8 | W LOG: 10-74 || 543-9} 68-4 || 516-6] 69-5 || W
By) 19-86 || 543-3| 56-7 | 493-7! 57-1 || W HH) 11-10 |) 543-0] 68-4 || 499-6] 68-7 || H
4 0 16-97 || 544-4] 56-8 | 511-0| 57-2 || W 12 0 11-08 || 541-8] 68-2 || 496-0} 68-2 | H
5 0 16-15 || 553-7) 56-9 || 531-2} 57-2 || W
6 0 13-83 || 558-6| 56-9 | 539-9] 57-2 | H 13 O || 25 10-61 || 539-9] 67-8 || 494-6] 67-9 |
7 AW 14-06 | 560-1} 56-8 | 535-3] 57-2 || H 14 0 11-64 |) 540-5} 67-2 || 493-7] 67-5 | H
8 0 12-72) 554-6| 56-8 || 535-5| 57-2 || H 15 0 11-51 || 538-4] 66-7 || 494-9| 66-7 | H
0 12-63 || 552-6| 56-8 || 534-5] 57-1 | H 16 0 08-50 || 536-1} 66-1 |) 504-8; 66-0 | H
10 0 12-18 || 546-6] 56-7 | 525-7] 57-0 | H 17 O 06-23 || 534-5] 65-7 || 514-7} 65-2 | H
ii 0 11-30 || 545-0| 56-7 | 519-1} 56-9 | B 18 0 05-42 || 532-7) 65-2 | 520-7] 64-7 || H
12550 08-85 || 545-1| 56-6 || 503-8) 56-8 | B 19 0O 04-81 || 530-9} 64-9 || 523-1} 64-3 WwW
20 0 04-86 || 529-3] 64-6 | 522-6; 64-0 | W
13 0 || 25 08-39|| 541-9] 56-5 || 505-6| 56-7 | B 21 5 05-50 || 529-0} 64-3 |) 514-7] 63-8 | B
14 0 08-68 || 546-1} 56-4 | 504-8} 56-5 | B 22 0 08-06 || 527-3] 64-3 | 499-5] 64-0 || W
15 0 09-44 || 547-2} 56-3 | 504-2| 56-4 | B 23 0 12-67 || 517-7| 64-3 || 497-4] 64.5 | W
16 0 07-64 || 545-8) 56-2 | 508-9] 56.3 B]12 0 O 18-47 || 516-7| 64-7 || 495-2| 65.3 | W
7 0 07-84 |) 547-3} 56-1 | 509-6| 56-2 | B i (0) 18-84 || 527-2} 65-5 || 487-9] 66-6 | W
18 0 05-76 || 543-0} 56-0 | 509-6| 56-2 | B 2 0 17-80 |} 530-8| 66-6 || 483-5] 67-9 | W
19.0 03-95 || 540-3) 56-0 || 509-5) 56-3 | H 3.40 16-79 || 543-1] 67-8 || 479-8] 69-3 || W
20 0 05-29 || 536-2} 56-1 | 507-7| 56-5 | H 4 0 17-37 || 546-0] 69-0 || 483-6] 70-5 || W
21 0 05-69 || 534-0] 56-4 | 505-6] 56-9 | W 5 (0 14-91 || 539-2] 70-2 || 483-7) 71-6 | W
22 0 07-64 || 528-7] 56-7 || 502-1} 57-3 H 6 0 13-05 || 543-3] 71-1 || 484-6| 72-3 | H
23 0 12-06 || 530-4] 57-1 || 493-5| 57-8 || H f W 11-52 || 548-2] 71-8 || 485-0} 73.0 | H
10: 0 0 15-27 || 532-4] 57-6 | 490-0| 58-3 || H 8 0 11-44 || 547-8] 72-3 || 496-3] 73-5 || H
0 18-03 || 537-1] 58-1 || 485-6| 59-0 | H i 10-83 || 549-1] 73-0 || 501-4| 74-4 || H
20 19-71 || 537-4} 58-8 || 470-7| 59-7 || H 10 0 10-98 || 544-4) 73-0 || 500-5| 74-0 || H
3 0 19-31 || 544.4} 59-5 || 458-8} 60-5 | H ll 0O 10-97 || 542-2} 72-8 || 494.8] 73.4 || B
4 0] 17-06 | 545-7} 60-2 | 467-7! 61-2 | H 12 0 10-54 || 540-1] 72-4 || 495-3] 72-7 | B
DECLINATION. Magnet untouched, May 84—June 184.
Birizar. Observed 2™ after the Declination, s=0:000140. BALANCE. Observed 3™ after the Declination, k=0-000010.
+ Extra Observations made.
Gottingen
Mean Time
of Declina-
tion Obs.
0
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
0
0
0
0
0
0
0)
0
ocoooooococo
HovurLy OBSERVATIONS OF MAGNETOMETERS, JUNE ]2—18, 1845.
DECLINA-
TION.
Bir
ILAR.
BALANCE.
Cor-
rected.
Se. Div.
538-7
538-2
531-7
533-1
533-9
534-3
533-1
530-4
528-2
524-5
522-1
522-0
Thermo-
meter. .
71:8
Cor-
rected.
Mice. Div.
491-6
479-2
489-8
501-0
512-4
522-4
525-4
529-7
538-3
530-1
521-4
493-0
484-3
490-8
487-1
485-4
487-9
491-0
493-9
491-7
487-6
| 487-6
486-1
483-5
485-1
489-1
495-5
502-7
510-2
518-7
517-9
518-5
511-2
509-9
495-2
474-1
479-5
487-6
494-0
489-4
488-8
488-5
488-9
487-1
492-4
497-2
491-7
484-4
510-8
510-5
517-7
521-9
524-4
528-2
533-7
532-4
Thermo-
meter.
71-8
70:0
69-1
68-5
67-8
67:7
67-9
68-7
69-2
69-8
70-8
71-7
72-6
73-2
73-6
73-9
74-2
75-0
74-4
74-0
73-2
72-5
71-5
70-6
69-7
69-0
68-2
67-4
67-4
67-5
67-7
68-2
68-6
71:8
72-0
71-4
70-2
69-6
65-3
65-0
64-7
64-4
64-0
63-6
63-2
70-9 |
68-0 |
67-7 |
71-2 ||
71-6 |
71-9 ||
70-8 |
63-0 |
Observer's
Initial.
Hhesddbdhh Mesa Se Se SSeS sees Seer Sea
Gottingen
Mean Time
of Declina-
tion Obs.
a ik *m.
15 21 10
22
Po
~I
SSSR) Sa a tS (SSS) IS
ocoooocoocococoooooco
ococoqoooqoeoeoqcoeoqoeqcecooqcoqococo ]
DECLINA-
TION.
25 06-03
08-01
12-49 |
15-92 |
17-53
17-91
17-54
14-67
13-36
11-64
10-53
11-10
11-17)
11-71
11-37
12-16
10-40
11-25
08-18
08-77
07-24
07-27 ||
07-81 |
08-05
08-92
09-46
12-92
15-54
16-48
16-48
15-14
13-79
12-20
10-80
10-13 ||
09-76
11-00
10-41
11-51
11-19)
10-83
10-60
09-94
08-45
’ BIFILAR.
BALANCE,
08-06
05-45
04-31
04-48
04-78
07-54
10-31
13-86
15-31 ||
15-45
15-31
13-44
Cor-
rected.
Sc. Diy.
529-1
529-7
528-5
533-9
537-2
537-9
540-2
542-0
543-8
546-5
548-8
548-2
548-6
551-1
547-3
546-4
044-5
044-9
539-1
538-3
537-4
536-1
533-3
527-9
527-2
523-2
528-7
534-4
538-7
539-8
540-5
541-0
545-0
543-8
546-1
549-9
548-6
545-3
541-6
540-0
539-4
538-5
538-4
535-4
536-0
533-4
031-5
528-8
525-4
521-1
522-8
525-9
534-7
540-5
540-8
542-9
Thermo-
meter.
63-4
63-2
63-3
63-4
63-5
63-7
64-0
64-2
64-3
64-6
64-7
64-7
61-2
Cor-
rected.
| Mic. Div.
528-8
520-2
513-5
509-8
491-3
496-5
507-0
512-4
521-4
526-6
519-4
| 319-4
519-0
516-5
515-4
514-0
524-6
517-5
513-3
501-0
505-7
015-5
Thermo-
meter.
63-0
63-0
63-3
63-5
63-7
64-0
64-2
64-5
64-7
65-0
61-7
Observer’s
Initial. |
4s4saseuesummmen Midst eens Soa
Effect of + 10° of torsion = —0’-84.
Observed 3™ after the Declination, s=0-000010.
DECLINATION. ‘Torsion removed, June 184 244, +1}°.
BirILAR. Observed 2™ after the Declination, k=0:000140. BALANCE.
June 131.9, The Sun shining on the case of the balance magnetometer.
) Gottingen
Mean Time
of Declina-
tion Obs.
eoqooeooe o#
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
OONOUAWNK ©
10
11
12
So oc oso Sie o So See S168) S.SiSs1e SoS
HovurLy OBSERVATIONS OF MAGNETOMETERS, JUNE 18—23, 1845.
DECLINA-
TION,
25 11-74
11-21
11-05
10-92
10-63
10-63
10-14
10-11
10-23
10-16
09-87
09-49
08-14
05-89
04-89
05-32
06-37
08-79
12.33
16-75
17-61
19-05
18-52
16-33
14-55
11-35
10-63
09-89
12-43
08-61
07-38
03-94
02-97
06-32
06-61
10-14
12-58
15-20
18-13
18-18
15-58
13-41
11-81
10-87
10-97
10-95
11-44
11-66
11-95
11-37
BIFILAR.
Cor-
rected.
Sc. Diy.
543-1
546-6
549-2
550-7
549-4
547-9
546-9
546-1
045:3
546-0
543-6
544-0
643-1
537-9
536-2
533-7
528-0
526-0
524-1
529-7
537-8
543-0
543-0
044-5
547°8
548-5
549-5
549-0
546-9
045-8
545-7
545-7
546-4
543-9
544.9
043-1
541-0
540-1
533-9
031-4
530-7
523-6
021:3
524-0
532-7
042.1
045-4
552-3
551-9
952-0
555-1
952-2
552-5
048-4
549-2
545-4
Thermo-
meter.
BALANCE.
Cor-
rected.
Mie. Div.
527-3
527-0
524-4
520-2
520-0
502-4
499-1
497-6
495.2
490-3
489-5
489-0
492.0
494.9
497-0
495.4
491.9
488-8
486-5
478-7
471-6
468-6
473-7
483-3
492-6
493-2
501-0
489-6
494.]
488-1
485-1
483-7
483-5
486-8
487-8
487-7
488-3
486-9
493-1
492-6
500-7
498-0
491-4
454-4
491-4
492.4
497-9
502-7
502-6
498-7
488-0
486-1
| 481-8
| 479-8
476-9
66-3 || 467-9
Thermo-
meter.
62-2
62-7
63-0
63-0
63:0
62-9
62-9
Observer’s
Initial.
44sec ehbheuey 4agnmnmd |
mise e eset Setavcacemmy”
Gottingen
Mean Time
of Declina-
tion Obs.
oooccooocoocococoococorooce
oooocoocceo
| DECLINA-
TION.
25 09-80
09-62
11-22
07-27
05-32
03-65
02-84
04-22
04-76
08-72
16-38
19.84
21-26
20-62
20-58
08-39
09-39
09-32
05-18
04-24
04-10
BIFILAR.
BALANCE.
Cor-
rected.
Se. Diy.
543-3
541-7
540-8
540-9
539-1
538-9
536-7
530-8
523-8
521-8
, 024:8
529-2
535:8
539-7
046-8
549-2
547-1
093-0
552:8
552-9
549-3
547-1
544-1
540-6
040-4
539-8
538-5
539-0
539-3
536-2
532-8
529-2
526°3
523-3
524-1
529-2
539-0
542-0
590-5
554-6
553-9
550-8
546-0
551-1
550-2
047-8
548-5
047-8
540-9
540-0
539-9
539°3
541-5
539-6
537-3
533-2
Thermo-
meter.
Cor-
rected.
Mic. Diy.
472-8
475-0
476-8
481-6
488:5
490-9
491-1
490-7
486-7
481-6
469-9
462-7
470-0
469-5
475-6
485-1
493-1
492-8
492-9
491-9
486-1
480-3
475:1
477-2
487-0
491-5
495-7
502-2
509-7
518-0
025-1
515-2
518-7
510-1
492-9
488-1
495-0
489-5
502-6
502-2
508-1
513-2
523-2
520-9
517-7
508-2
498-6
488-5
485-2
490-6
479-9
481-7
482-7
489-3
491-9
503-0
Thermo-
meter,
65-8
65-2
64-5
64-0
63-5
33
Observer’s
Initial.
ddim mma sofso <I Beeltsoliseliseltsoltselicelisellselisells-/e— (eee E=| ggmnnmndedeeedegddmnnmmn |
BIFILAR.
DECLINATION.
Magnet untouched, June 184—Sept. 214.
Observed 2™ after the Declination, k=0-:000140.
BALANCE.
Observed 3™ after the Declination, k—=0:000010.
MAG. AND MET. oBs. 1845.
June 184 10h—194 10h,
Observer C. Mr CHISHOLM.
Term-Day Observations made.
34 HOvuRLY OBSERVATIONS OF MAGNETOMETERS, JUNE 23—28, 1845.
Gottingen BIFILAR. BALANCE, % _;| Gottingen BIFILAR. BALANCE. %
Mean, Time. ||\/ DECLINA=" || >— = aed || | Mean Time. ||. DEcuina= ||———__|____ lmao 3
of Declina- TION. Cor- |Thermo-|} Cor- |Thermo- ga “3 | of Declina- TION. Cor- |Thermo-|| Cor- /Thermo-|| 2 =|
tion Obs. rected. | meter. |] rected.} meter. ||O'*} tion Obs. rected. | meter. || rected. | meter. 5 re
GE an m. Q “ Se. Div. 2 Mic. Div. 2 ao he ent ei / Se. Div. e Mic. Diy. °
23 21 O | 25 05-63 || 530-6} 59-5 || 503-3] 59-2 | W | 26 5 O |] 25 14-821] 549-9] 58-7 || 498.0] 59.5 | H
22 0 08-25 || 527-7| 59-4 || 501-6] 59-2 | W 6 0 11-54 || 547-7| 59-0 || 501-1] 59-8 || W
2B (i) 10-13 || 525-0] 59-4 || 501-8] 59-4 || W i 0 10-80 || 551-6} 59-3 || 501-3} 59-8 || W
24 0 0 12-28 || 527-9| 59-5 || 485-0} 59-5 | W 8 0 10-70 || 552-2| 59-3 || 497-0| 59-7 || W
1 O 14-99 | 532.4] 59-5 || 483-8] 59-7 || W 9 O 10-40 || 549-4] 59-2 || 494.2] 59.5 || W
2 0 16-92 || 538-S| 59-6 || 496-8] 59-8 || W 10 O 10-30 || 548-2] 58-9 || 489-7} 59-0 || W
3 0 17-98 || 545-3| 59-8 || 500-8] 60-0 ||. W Lit a0 10-67 || 545-1] 58-6 || 488-3] 58-6 || H
4 0 16-38 || 550-5| 59-9 || 503-7] 60-3 || W 129 40 10-65 || 545-0] 58-3 || 487-7] 58-4 || H
5 0 14-23 || 554-3] 60-0 || 512-4] 60-4 || W
6 0 12-62 || 555-8} 60-1 518-3] 60-5 || H 13. O || 25 10-09 || 544-0} 58-0 || 486-3] 57-9 || H
i 12-04 || 552-8| 60-1 519-2| 60-2 || H 14 0 09-53 || 543-3] 57-7 || 492-1} 57-3 H
8 0 11-66 || 551-6| 60-0 || 515-5| 60-0 || H 1550 09-02 || 541-8} 57-3 || 491-5} 56-8 || H
yo) 12-15] 551-1| 59-8 |} 511-1] 59-5 || H 16 0O 08-55 || 540-7| 56-8 || 496-6] 56-3 || H
10 0 11-51 || 544-6] 59-4 || 508-6] 59-0 || H 17> 0 06-84 || 539-4] 56-3 || 501-8] 55-7 || H
11 O 11-37 || 543-0] 59-0 || 504-7| 58-5 D 18 0 05-49 || 537-8} 55-9 || 506-9] 55-2 | H
2 0 11-08 || 544-2} 58-7 | 500-3} 58-3 D 19 0 05-69 || 537-0] 55-7 || 509-9} 55-0 | W
20 O 05-15 || 536-5] 55-4 || 512-0] 54-9 || W
13. 0 | 25 08-82|| 543-0] 58-5 || 492-8] 58-0 D 215 10 05-55 || 536-4] 55-3 517-9] 55-0 || W
14 0 09-69 || 539-8] 58-2 | 499-4] 57-7 D 22% 10 08-16 ]| 532-8} 55-3 509-6| 55-4 || W
Is (0) 09-42 || 540-6} 57-8 || 503-0} 57-3 D 238 10 12-82|| 530-7] 55-6 || 497-5] 56-0 | W
16 0 12-78 || 540-5| 57-4 | 508-1] 56-9 D | 27 (0) 10 15-22}|| 534-3] 56-0 || 484-7] 56-6 || W
ee (0) 07-69 || 540-5} 57-1 515-4] 56-5 D 1 10 17-36 || 536-9| 56-5 || 483-7] 57-2 || W
18 0 06-98 || 539-1} 56-9 || 520-1] 56-3 D 28 V0 19-01 || 541-8| 57-0 || 479-6| 57-8 || W
19 9 07-40 || 537-2) 56-7 || 522-4] 56.2 || H 3) 40 18-43 || 541-9] 57-4 || 482-3] 58-1 W
20 O 07-13 || 536-2] 56-5 || 521-6] 56-2 | H 4 0 16-72 || 544-2] 57-7 || 488-4] 58-3 Ww
21 0 07-52 || 536-7] 56-5 || 513-7] 56-3 || W a 0 14-11 |] 545-6| 57-9 || 499-4] 58-5 || W
22 0 08-29 | 534-5] 56-5 || 506-8} 56-5 || H 6 0 11-98 || 548-2} 58-0 || 501-9| 58-5 | W
23 +O 10-40 | 533-3} 56-7 || 504-5} 57-0 | H 7. 107) 12-15] 553-3] 57-8 || 507-9] 58-2 || W
25 ) 0) 30 13-72 || 535-4] 57-0 || 501-0] 57.5 || H 8 0 11-77 | 555-6] 57-6 || 507-0} 57-8 || W
0) 16-35 || 538-8] 57-4 || 497-5] 58.4 | H 9 0 11-34 || 554-1] 57-3 || 505-2] 57-3 H
7 (0) 16-21} 542-2} 58-2 || 503-5| 59-5 H 10 O 11-00 || 554-5] 57-0 || 504-4] 56-7 H
3 0 17-15 || 543-9] 59-1 507:9| 60-5 | W Lie 30 11-57 || 549-5] 56-6 || 504-5} 56-4 D
4 0 16-59 || 548-5] 60-1 504-8] 61-5 | H 12 10, 09-05 || 545-9] 56-3 || 495-0] 56-1 D
By 0) 14-33 || 547-6| 60-8 || 504-2] 62-0 | H
6 0 12-04 | 552-3] 61-3 || 502-0] 62.3 || W 13. O || 25 08-80]} 542-6] 56-0 || 493-3] 55-8 D
7 W 11-82) 550-2] 61-4 || 505-0] 62-5 | H 14 0 07-64 || 542-3} 55-7 || 493-8] 55-5 D
8 0 11-44]| 548-8] 61-4 || 508-5| 62-2 || H- lo, 0 07-62 || 541-4] 55-4 || 497-2} 55-2 D
9k 40 10-70) 546-3} 61-3 || 503-8] 61-8 || H 16 0O 08-72 || 547-8} 55-1 498-8} 54-8 D
10 0 10-70 || 544-8| 61-0 || 500-4] 61-5 | H 7 6 04-39 || 544-5} 54-8 || 502-9] 54.5 D
Lily 00) 11-66 || 546-4] 60-7 || 493-0] 61-0 | W 18 0 07-49 || 544-6] 54-6 || 503-4} 54-3 D
12 0 11-91 | 545-8] 60-3 |} 491-5} 60-5 || W 19 OO} 06-06 || 539-9} 54-3 || 506-9! 54-1 H
20 0! 08-65 || 538-0| 54-2 || 508-8} 54.0 | H
13 0 || 25 11.42]) 543-5] 60-0 || 492-3] 59-9 || W PAE (0) 4) 07-87 || 531-4] 54-1 506-6] 54-0 | W
14 0 10-36] 540-1} 59-6 || 494-8} 59-3 || W 22 10.) 07:78 || 527-5| 54-0 || 494-6] 54-0 || H
15 0 09-17 || 539-7| 59-2 || 498-7} 58-8 || W 238 10e| 11-86 || 517-0] 53-8 || 482-9) 53-5 || H
16 0 09-33 || 538-9] 58-7 || 504-2} 58-3 | W428 0 O 22-67 || 519-7 | 53-7 || 476-9] 53-2 || H
17 0 06:77 || 539-1] 58-2 || 510-0} 57-8 || W 15, 40: 18-11 || 525-2} 53-3 || 470-1] 52.8 || H
18 0 ; 06:19 || 536-1] 57-8 || 517-0} 57-3 || W 20 22-40 || 544-8} 53-1 490-3| 52-7 || W
LOR NO 05-30 || 534-5] 57-6 || 516-4| 57-0 H 30 100) 19-04 || 539-6! 53-0 || 502-6} 52.5 || W
20 0 05-90 || 532-0] 57-4 || 516-0} 657-0 || H 4. 10) 12-90 | 550-3 52-9 || 514-3} 52-6 || W
21 O 06-14 | 527-0} 57-2 || 519-7] 57-0 || H ON raw|| 11-62] 548-1} 52-9 || 528-4] 52.8 | H
22 0 08-05 || 523-7} 57-1 513-4] 57-0 | H 6 0 11-66 || 550-1} 53-0 526-2| 53-0 | H
23 «0 11-10) 521-6] 57-0 || 498-7| 57-2 || H te OuN| 11-30 || 550-8 | 53-0.}| 530-3} 53-0 H
26 0 O 16-05 | 525-5] 57-2 || 485-5| 57-4 || H 8 0] 12:16 || 546-7} 52-9 || 521-8} 53-0 || H
1 O 16-62 || 529-6] 57-3 || 479-8] 57-7 || H 9 0} 12-42 || 547-1] 52-8 520-4} 52-8 H
yy 0) 17-09 || 533-9} 57-7 || 487-2| 58-2 || H 10 O 10-80 || 547-8] 52-8 || 517-9] 52-6 || H
3 16-75 || 529-1] 58-0 || 490-2) 58-7 || H Ii 40 i 11-55 || 545-5] 52-6 || 511-8) 52-5 || W
4 0 17-22 | 542-5! 58-3 | 496-8} 59-1 H 12508! 10-65! 545-3! 52-4 |i 512-5| 52-1 WwW
DECLINATION. Magnet untouched, June 184—Sept. 214.
BIFiLAR. Observed 2™ after the Declination, h = 0:000140. BALANCE. Observed 3™ after the Declination, = 0-000010.
June 264 24. Observatory being swept.
Gottingen
Mean Time
| of Declina-
tion Obs.
30
Seeoqoceooceceoocoooocesooooes
coooocoococococeococeoceceo
ocoowoococoao
BIFILAR.
HourLy OBSERVATIONS OF MAGNETOMETERS, JUNE 29—JuLY, 4, 1845.
Observer’s
Initial.
THSassessese SSN SS eee Sse eeyeseys vomnnmn<daddedgeddmmmmnm |
Gottingen
Mean Time
of Declina-
tion Obs.
bo
bo
iY)
oo
Seeceooooooooooocoer
OONDoOK WHF OS
oo
—
S1S59 S11 1S (S29 ClO SO) Cle S19 OC Grote Ore)
aN
(= NSS SSS Say SS) (SS =)
BIFILAR. BALANCE.
DECLINA-
TION. Cor- |Thermo-|| Cor- |Thermo-
rected. | meter. |] rected. | meter.
c ‘ Se. Div. ¥ Mic. Div. 9
25 12.45 || 542-7 5:5 || 486-8! 56-0
13-02 || 537-4| 55-2 || 478-1] 55-7
10-23 || 537-9 55-0 || 478-3] 55-5
07-18 || 542-2} 55-0 || 479.9) 55-5
04-81 || 543-8| 54-8 || 487-9] 55-3
04-15 || 538-0] 54-8 || 493-3) 55-4
06-16 || 537-5 | 55:3 || 497-7] 55-7
09-47 || 532-0] 55-5 || 496-6| 55-9
13-29 || 524-1] 55-6 || 498-5] 56-1
13-59 || 529-9] 55-9 || 488-7] 56-5
13-72|| 530-5] 56-4 || 489-0] 57-1
14-94 || 532-2| 56-9 || 472-6] 57-9
14-53 || 540-4] 57-5 || 458-8) 58-6
15-12 || 545-2} 58-2 || 460-9} 59-4
15-44 || 550-4} 59-0 || 472-0} 60-3
15-25 || 550-4 | 59-8 || 481-2} 61-1
13-02 || 553-8| 60-4 || 490-2) 61-5
10-53 || 553-6| 60-8 || 507-5| 61-7
12-75 || 551-1} 60-8 507-2| 61-7
13-39 || 559-1| 60-7 |) 491-2] 61-5
12-04 || 548-5) 60-5 || 491-3} 61-5
11-44 || 548:5| 60-3 || 486-0} 61-0
09-54 || 550-0} 60-1 470:0| 60-4
09-73 || 534-4) 59-8 || 444-1] 60-2
25 01-41 || 533-8} 59-6 || 415-0} 59-9
05-55 || 535-7| 59-4 || 409-2} 59-6
06-93 || 537-6} 59-2 || 392-8) 59-3
15-27 || 521-5| 58-9 || 403-4] 58-9
06-59 || 537-4| 58-7 383-6| 58-5
07-51 || 539-4) 58-4 || 422-3) 58-3
08-26 || 531-0) 58-0 || 446-5] 58-0
06-77 || 530-4| 57-7 || 461-0) 57-7
07-54 || 523-8}) 57-6 || 472-6] 57-5
09-19 || 526-8} 57-4 || 473-2) 57-2
11-34|| 530-1} 57-2 || 471-0| 57-2
14-06 |} 537-0] 57-1 463-5| 57-1
15-44 || 545.2} 57-1 453-4] 57-3
14-99 || 532-6) 57-2 || 468-0} 58-0
15-41 || 552-5) 57-7 || 470-0} 58-3
15-04 || 550-6} 57-9 || 477-7| 58-4
13-93 || 549-8] 58-0 || 480-8] 58.4
13-00 || 552-6} 57-9 || 484-5] 58.2
12-63 || 550-5| 57-7 || 486-1] 57.9
13-22]| 548.4] 57-5 || 486-2) 57-5
11-62 || 548-5| 57-2 || 484-6| 57-2
11-48 |} 546-4] 57-0 || 491-1| 56-8
09-87 || 541-4) 56-8 || 490-3] 56-5
09-64 || 540-5) 56-5 || 488-0] 56-3
25 09-86 || 539-8] 56-3 || 485-2} 56-0
08-97 || 539-3] 56-0 || 486-7| 55-8
09-35 || 539-9] 55-8 || 488-0] 55-5
11-19 || 540-7] 55-6 || 484-8] 55-3
06-61 || 542-5| 55-4 || 485-2] 55-1
06-21 |} 536-4] 55-3 || 493-6) 55-1
06-03 || 533-1| 55-4 || 497-2| 55-3
08-01 1! 531-4] 55-4 || 492-7! 55-5
DECLINATION.
Observed 2™
DECLINA-
TION,
° ,
25 08-34
08-41
10-53
09-00
12-65
13-16
12-85
13-66
13-86
14-73
12-60
12-45
11-68
11-41
10-77
10-77
25 09-71
10-50
08-14
09.46
08-08
06-06
10-28
07-17
08-63
11-14
12-28
15-17
15-78
15-59
15-69
16.93
15-14
14-64
12-82
12-95
12-75
11-64
10-97
25 10-65
11-48
08-50
07-38
07-34
07-31
05-72
05-32
05:56
07-35
10.23
13-02
16-19
19.34
19-41
18-07
16-86
BIFILAR. BALANCE,
Cor- |Thermo-|/| Cor- |Thermo-
rected. | meter. || rected. | meter.
Se. Diy. °. Mic. Div. °.
530-9] 55-6 || 488-0] 55-7
525-4! 55-7 || 488-1] 56-0
523-2} 55-8 || 487-5| 56-4
531-4] 56-2 |) 483-2] 56-8
536-1] 56-7 || 482-2} 57-7
549-2| 57-3 || 490-5] 58-6
547-8| 58-2 || 497-8] 59-5
556-9} 59-1 || 498-4} 60-5
553-3! 60-0 || 514-2] 61-5
546-3} 60-8 || 516-8) 62-2
550-6} 61-7 || 502-0} 62-8
547-5| 61-9 || 499-9] 62-8
546-1 62-1 || 489-8] 63-0
545-4] 62-1 || 482-1) 62-8
531-8| 62-0 || 477-6} 62-5
541-6| 61-6 || 476-3} 62-0
540-4] 61-3 || 475-2! 61-5
539-7| 60-9 || 474-8} 61-0
538-3| 60-4 || 476-0! 60-5
541-2| 60-0 || 475-2} 60-0
539-4| 59-7 || 481-5] 59-5
533-3| 59-3 | 481-0] 59-0
535-8| 59-0 || 477-0} 58-7
535-0| 58-7 || 461-0] 58-4
528-5| 58-4 || 462-5) 58-2
527-7| 58-3 || 468-8} 58-0
528-6| 58-0 || 478-9] 57-8
529-9} 57-9 || 461-2} 57-8
537-7| 57-8 || 463-6] 57-8
539-2| 57-8 || 467-3) 57-8
542.4] 57-8 || 481-8] 57-8
547-4| 57-8 || 492-2} 57-8
546-6| 57-8 || 498-4] 58-0
551-1| 57-8 || 501-7) 58-2
553-0] 58-0 || 504-0) 58-3
548-6] 58-0 || 500-1} 58-4
547-9| 58-0 | 495-5] 58-4
545-3) 58-1 494-4; 58-4
543-2| 58-2 || 489-6} 58.4
541-0] 58-2 || 488-6} 58-3
543-7| 58-1 || 485-7] 58.3
542-1| 58-1 |) 485-2] 58-3
540-0] 58-0 || 486-7} 58-2 |
538-5| 57-9 || 487-2} 58-1 |
540-5| 57-7 || 487-7| 57-7
538-7| 57-4 || 485-5] 57-4
536-0| 57-4 || 488-8] 57-4
534-0| 57-4 || 491-3} 57-3
531-6| 57-4 || 493-5] 57-3
529-6| 57-4 || 491-0} 57-3
528-7] 57-4 || 491-3} 57-5
530-9] 57-6 || 493-8} 58-2
536-0| 57-9 || 491-2] 58-7 |
543-8] 58-7 || 482-1] 59-5 |
546-7| 59-2 || 481-2] 60-2 |
552-7! 59-8 || 488-4! 61-0 |
co
Or
Observer’s
Initial.
HERMES RUC CUUSS Ubmmmnddadddeedd etki mhidddedmimehinimmnn |
Magnet untouched, June 184—Sept. 214.
after the Declination, =0:000140.
July 34 2h,
BALANCE.
Observed 3™ after the Declination, s—0-000010.
A small insect seen on the south cross-plate of the balance magnet.
36 HovurRLY OBSERVATIONS OF MAGNETOMETERS, JULY 4—9, 1845.
Gottingen BIFILAR. BALANCE. eo. Gottingen BIFILAR. BALANCE, % 5
Mean Time || DECLINA- 2-8] Mean Time || Dectina- |——j————_ eS | 7 PS
of Declina- TION. Cor- |Thermo-)| Cor- |Thermo-|| 2°=] of Declina- TION. Cor- |\Thermo-|| Cor- 'Thermo-|| %‘E
tion Obs. rected. | meter. || rected. | meter. S= tion Obs. rected. | meter. | rected. | meter. ar
GL Tay sey Sep ae Se. Div. ° Mic. Diy.| ds shee ite ai a Se. Div. e Mic. Div. °
4 5 0|| 25 15-74] 549-3} 60-5 | 498-7] 61-5 || H “a t3 Ot 25 18-50|| 540-0} 66-5 || 412-8) 66-7 || W
Garon 13-72 || 555-0} 61-1 || 502-4] 62.0 | W 14 0 08-66 || 539-4| 66-1 || 419-7) 66-2 || W
i 2 12-49 || 552-0! 61-2 || 489-9] 61-6 | H 15 0 | 09-15 || 538-0] 65-7 || 442-2) 65-5 || W
8 0 12-63 || 550-4] 61-3 || 491-3] 61-7 | H LEP -10) | 07-89 || 537-8 | 65-2 | 459-8| 64-9 || W
oF 0H 11-54 || 549-2] 61-5 || 493-6] 62.7 | H Leon 07-08 || 536-9| 64-7 | 468-4) 64-3 || W
10 0O| 12-22 | 549-8] 61-7 || 482-6) 62-5 || H 18 0 06-03 || 534-5] 64-4 || 472-0} 63-7 || W
11 O 09-86 || 543-7| 61-3 | 479-4| 61-7 || W 19% -O | 05-32 || 536-6] 64-0 || 475-1) 63-5 || H
12° OF 04-82 || 548-0] 60-9 | 471-1} 61-0 | W 20 0] 05-72] 535-1] 63-8 || 478-1] 63-5 || H
/ BAN (0) 07-37 || 528-6| 63-7 || 473-6! 63-5 || B
13. 0 || 25 09-46 || 541-1; 60-5 | 469-7) 60-3 | aN 22,10) | 10-87 || 524-7 | 63-7 || 467-9) 63-6 || H
14 0 09-30 || 541-6] 60-0 | 472-7] 59.6 || W 23 0 13-41 || 522-6| 63-8 || 466-2! 64.0 || H
15 0 08-70 || 539-8] 59-4 || 479-2] 58-9 || W So VOrPO 16-59 || 527-6| 63-9 || 465-2] 64.3 || H
16 0 08-29 || 539-7] 58-9 | 484-6] 58.2 || W 140): 18-58 || 531-0| 64-3 || 459-6) 64.6 || B
il? @) 09-44 || 538-4] 58-4 487-9| 57-6 || W 2 0 20-08 || 544-5! 64-6 | 461-3) 64.9 || B
18 0 07-91 || 538-6] 57-9 || 484-5] 57-3 || W 3 40h 19-82 || 546-7| 64-8 || 468-0} 65-3 | B
Ue) 06-29 || 537-3| 57-9 || 494-2] 57.2 | H 4) Or 18-90 || 551-3| 65-2 || 475-1| 65-7 || H
20 O 06-97 || 534-3] 57-8 || 490-2] 57.2 || H 5 0 16-23 || 548-2} 65-6 || 488-5! 66-1 B
2170 07-20 || 532-6| 57-7 || 490-9] 57-3 || D 6 0) 14-23 || 551-6! 65-9 || 486-8| 66.4 || W
22 0 10-53 || 532-4| 57-7 || 482-0] 57.7 || H 7, OO 12-82 || 564-2! 66-1 | 480-6] 66-4 | W
23 0 11-03 || 536-3} 57-8 || 480-8] 58.3 || H 8 oft 11-46 || 552-8 | 66-1 || 496-2) 66-2 || W
2 0) 0 15-85 | 542-0] 58-2 || 471-4) 59.0 | H 9. 10h} 09-51 || 552-3 | 66-0 || 500-1} 66-0 || W
0) 16-16 || 532-4| 58-9 || 457-0! 60.2 || H 10 0| 08-88 || 543-4| 65-7 | 492-5] 65-5 || W
DAO! 15-71 || 533-5| 60-0 || 464-6] 61-2 || H LIPO) | 09-66 || 543-4} 65-3 | 485-0) 65.1 | H
3a. 0 14-84 || 539-5| 61-0 || 474-3] 62.5 || H 12, <0) | 10-36 | 542-1} 65-0 || 470-7; 64.5 || H
4 0 14-37 || 543-4| 62-0 || 471-3] 63.4 || H |
on a0 13-91 || 545-3) 62-9 || 475-0] 64.2 | H 13 0 | 25 11-00|| 542-5] 64-7 || 467-0| 64.1 || H
6 0 13-34 || 551-4] 63-9 || 471-4| 65-1 || W 14 0 10-09 || 539-5 | 64-2 || 464-9] 63.7 || H
fe 10 11-41 || 555-5] 64-6 || 466-8] 65-3 || W 15 0 09-82 || 537-6| 63-9 || 471-9! 63-3 || H
8 0 10-90 || 554-1} 65-0 || 466-9| 65-7 || W 16 0 08-92 || 539-6) 63-6 471-6} 62-8 || H
9 0 10-61 | 553-1| 65-4 | 467-0| 66-7 W 17 Ot 16-82 || 526-3] 63-2 || 472-1| 62-5 || H
10 O 11-07 || 551-4] 65-6 || 457-2) 66-5 || W 18 0 15-34|| 536-7| 62-7 || 418-3] 62-0 || H
Hi 10-16 || 546-3} 65-3 || 457-2| 66-0 || H T9570 05-99 || 539-5 | 62-5 || 436-1| 61-7 || W
0) 10.33 || 548-0| 65-0 | 452-2] 65-3 | H 20 0 06-74 || 533-9] 62-3 || 448-5] 61-5 || W
21 0 | 07-34 || 529-4} 62-1 || 460-1] 61-5 | B
613 0 || 25 10-94 || 546-5| 63-3 || 455-8] 62.9 || D 22 0: | 08-95 || 525-2} 62-0 || 467-6] 61-7 || W
14 0 08-95 || 548-0] 63-1 | 448-4] 62-7 || D 23 0 | 09-00 |) 525-1| 62-0 || 466-5| 61-9 | W
15 0 04-98 || 542-1} 62-8 || 434-3] 62.4 || D 5° 0) 0 11-98 || 526-9} 62-2 || 456-9| 62.3 || W
16 0 11-82 || 535-1| 62-5 | 429-7] 62.1 || D 1 6 14-15 || 528-0} 62-6 || 456-8! 62.9 || W
ity 20) 05-33 || 541-6] 62-2 || 429-0] 61-7 || D 2 0 15-85 || 531-1} 62-9 || 458-9} 63-3 || W
LSr 10) | 02-82 || 539-8} 61-9 | 457-7| 61-5 D 3 0 16-38 || 536-6| 63-3 || 462-5| 63.9 || W
19 O 02-77 || 546-8] 61-8 || 471-2] 61-2 | H 4 0 15-01 || 542-5| 63-6 || 468-8) 64.1 || W
20 O 03-85 || 533-1] 61-5 || 477-6] 60-9 || H 5 0 13-56 || 544-0} 63-8 || 481-9) 64.3 || W
mt (0) 07-69 || 531-5] 61-4 | 480-2| 61-0 || W 6) 0 11-54 || 548-0| 64-0 || 483-3| 64.4 | H
22 0 11-91 || 532-0| 61-2 | 468-2; 61-2 | H iO 09-87 || 549-0} 64-0 || 484-7) 64.2 || H
23 0 13-07 | 529-7} 61-3 | 463-4| 61-5 | H 8 0 09-10 || 551-4} 63-8 || 484-7| 64.0 || H
“ZO © 13-66 || 532-2| 61-7 | 468-4; 62.2 || H So. 0 09-69 || 548-2| 63-5 || 482-4) 63-5 | H
i 17-70 || 538-4} 62-3 | 466-0) 63-0 | H 10 O 10-16 || 544-0} 63-2 || 479-3| 63-0 || H
Py (0) 17-56 || 544-2) 63-0 | 467-8} 63-8 || H Li x0) 09-67 || 541-8| 62-9 || 475-3) 62-5 || B
8) (0) 17-83 || 542-9] 63-8 | 476-0) 64-6 || H 12) 10 09-57 || 545-1] 62-5 || 468-6| 62-0 || B
4 0 17-36 || 548-9] 64-3 || 487-7! 65-4 | H
By 0) 16-01 || 544-1} 65-1 || 504-6] 66-0 | H 13 O || 25 07-72|| 542-6| 62-1 || 455-0} 61-5 || B
6 0 13-14 || 545-0) 65-7 | 507-1| 66-7 || W 14 0 08-93 || 537-4} 61-7 || 460-2) 61-0 || B
7 O 11-32 || 548-7| 66-3 || 499-8) 67-0 | W 15 0 10-74 || 538-8] 61-3 || 449-5| 60-6 || B
8 0 10-20 || 547-5| 66-7 | 489-6| 67-4 || H I 4) 09-64 || 538-1] 60-9 || 437-7} 60-2 || B
9 0 09-93 || 547-9| 67-1 | 480-3] 68-3 || H 70 07-11 || 536-8} 60-6 || 464-6} 59-8 || B
10 O 09-08 || 543-3 | 67-3 | 466-0; 68-0 | H 18 0 04-88 || 536-5} 60-3 || 481-8] 59-5 || B
ih (0) 10-36 | 543-1} 67-3. ||-460-0| 67-7 || W 19 0 03-65 || 534-7| 60-0 || 490-9| 59-5 || H
12 OF 11-14 || 546-0} 66-9 || 454-5! 67-2 || W 20 O 04-22 || 533-6| 59-9 || 497-0! 59.5 || H
DECLINATION. Magnet untouched, June 184—Sept. 214.
BiFILAR. Observed 2™ after the Declination, s=0-000140. BaLance. Observed 3™ after the Declination, <=0:000010,
+ Extra Observations made.
July 549". The sun shining on the case of the balance magnetometer.
|,
|
|
HovurLy OBSERVATIONS OF MAGNETOMETERS, JuLY 9—15, 1845. on
Géttingen BIFILAR. BALANCE. % | Gottingen BIFILAR. BALANCE. i" ¥
Mean Time |) DECcLINA- > .& | Mean Time || Dectina- ae
of Declina- TION. Cor- |Thermo-|| Cor- /Thermo-|| 3 °2 } of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|) $°s
tion Obs. rected. | meter. || rected. | meter. || S5'~ | tion Obs. rected. | meter. || rected. | meter. || 5
Wea.) “mm Fe, te Se. Div. 2 Mie. Diy. g doh. a0. o, ti Se. Diy. °. Mie. Diy. o
9 21 0 || 25 04-73|| 528:-4| 59-9 | 498-5} 59.8 | W112 5 O || 25 14-94] 546-0} 60-7 | 514-8] 61-5 | B
22.0 04-68 || 524-4] 60-0 | 498-6} 60.2 || H 6 0 13-12 || 557-3] 61-1 || 516-2) 61-7 | H
23.0 09-60 || 522-1| 60-4 | 496-5] 61-0 || H Go 12-04 || 555-7| 61-1 || 520-9| 61-7 || H
m6 0 0 13-93 || 524-1] 61-2 || 484-2) 62-2 || H 8 0 12-06 || 541-7| 61-1 || 512-2} 61-7 | H
10 16-05 || 531-9] 62-2 || 478-5] 63-4 || H 9 0 11-51 || 551-0} 61-0 || 502-1} 61-4 | H
2 20 18-34 || 537-9| 63-7 || 473-5| 64.9 | H 10 O 10-45 |} 543-0] 60-7 || 501-0} 60-8 || H
a 0 17-51 || 540-6} 64-2 || 465-5} 65-6 | H it @) 12-04 || 543-6) 60-4 || 494-0} 60-4 | B
4 0 17-06 || 548-5} 65-2 || 462-7| 66-6 | H 12 0 11-51 || 542-6| 60-0 || 489-3] 60-0 || B
5 (0 16-41 || 550-9] 66-0 || 467-8} 67-2 || H
610 14-94 || 549-5] 66-6 || 483-2] 67-8 || B | 13 13 0 | 25 10-54}| 541-5| 57-3 || 494-9] 57-3 || W
a x0 13-63 || 552-2] 67-0 || 480-2} 68-0 || B 14 0 10-18 || 541-9} 57-1 || 494-3} 57-1 || W
8 0 12-45 || 549-2| 67-2 || 480-4} 68-0 | B ey 0) 09-47 || 540-8} 56-9 || 493-7} 56-9 || W
90 10-70 || 547-5] 67-2 || 480-3} 68-0 || B 16 0 08-38 || 541-0] 56-7 || 495-7| 56-7 || W
16540 11-64 || 543-8| 67-0 || 470-5| 67-6 || B i790 07-00 || 541-1] 56-6 || 499-5] 56-5 || W
00) 10-21 || 544-2} 66-8 || 464-2] 67-3 || W 18 0 05-30 || 538-0} 56-4 || 503-1] 56-3 || W
12) 0 11-57 || 545-2| 66-5 | 460-8] 66-8 || W 19 O 04-95 || 536-3) 56-2 | 504-3) 56-1 || B
20 O 04-84) 531-1) 56-0 || 504-3} 56:0 | B
13 0 || 25 10-53) 543-5] 66-0 || 457-7! 66-2 || W 21 O 05-74 || 526-:5| 55-9 || 500-7) 55-9 || H
14 0 10-36 || 543-0] 65-5 |) 459-8) 65-6 || W 2240 08-34 || 524-6| 55-9 || 491-6| 56-0 || H
15 0 09-37 || 539-5] 65-1 || 463-8] 65-0 || W Zar 0 11-30 || 525-7| 56-0 || 493-9| 56-2 || H
16 0 12-01 || 537-1| 64-6 || 470-0) 64-3 | W714 0 O 14-06 || 530-7| 56-1 || 484-7| 56-5 || B
iT) 08:34 || 535-8| 64-0 | 471-3] 63.4 || W 1 0 16-52) 531-5| 56-5 | 479-6| 57-2 || H
18 0 05-02 || 537-6| 63-4 || 475-0| 62.7 || W P3 {0) 17-36 || 535-2| 57-1 || 477-4] 58-0 || B
19 0 03-90 || 535-4) 62-9 || 479-9) 62.0 || B 3B}. (0) 15-91 || 539-1| 57-7 || 477-4| 58-7 || H
20 O 03-99 || 531-1) 62-4 || 479-2] 61-5 || B 4 0 14-10 || 546-8| 58-4 |) 481-5| 59-3 || H
21 0 04-37 || 524-4} 62-0 || 479-9! 61-2 || H 5 0 13-36 || 551-2| 59-0 || 485-7] 59-8 || B
22 0 07-98 || 520-0} 61-7 | 478-3) 61-2 | H 6 0 14-68 || 558-7| 59-4 || 489-9] 60-3 || W
273) oY) 11-08 || 521-2} 61-7 || 474-5) 61-5 | H GW 13-05 || 553-2| 59-7 || 487-6] 60-5 | W
Mm 00 14-03 | 525-7| 61-7 || 469-7] 61-5 | B 8 0 13-43 || 556-5| 60-0 || 484-8) 60-6 || W
0 15-20 || 533-7) 61-8 | 465-0] 61-5 | H 9 0 12-75 || 552-9| 60-1 || 482-6] 60-5 || W
20) 17-76 || 533.4| 61-8 | 469-5] 61-7 || H 10 O 11-77 || 552-6| 60-0 || 480-6| 60-2 || W
33 17-49 || 545-5| 61-9 | 473-2| 62.0 | H 11 0 10-60 || 550-5| 59-7 || 482-8| 59-8 || H
4 0 17-53 || 546-8| 62-0 || 482-6] 62.5 || H 12) 40 09-54 |) 545-3} 59-4 || 482-7] 59-4 || H
5 0 15-24 || 547-2) 62-4 || 492-4| 62.7 | H
6 0 12-75 || 548-3} 62-5 || 493-6| 62-7 | W 13. O || 25 09-19]| 544-9} 59-0 || 477-6} 59-0 | H
740 11-24 |) 547-4] 62-5 || 492-5] 62-6 || W 14 0 08-70 || 543-5] 58-6 || 480-0| 58-5 || H
8 0 11-10 |) 552-2| 62-4 || 489-7| 62-4 || W 15 0 08-21 || 540-1} 58-2 || 483-4] 57-9 | H
9 0 11-72]; 549-1} 62-2 || 485-9] 62.1 | W 16 0 08-41 |) 540-8) 57-8 | 483-0| 57-2 || H
10 O 11-66 || 545-8| 61-9 |) 481-4] 61-7 || W 170 06-24 || 539-3| 57-2 |} 488-4] 56-5 | H
11 0 11-51 || 545-7) 61-6 || 477-8] 61-2 || H 18 0 04-61 || 536-0} 56-8 || 491-9} 55-9 | H
12 0 10-74 || 542-7) 61-2 || 476-5] 60-7 || H 19 O 04-78 || 534-7| 56-4 || 492-9} 55-6 || W
20 O 05-03 || 531-3 56-0 || 492-0) 55-3 | W
13 0 || 25 11-84|| 543-3] 60-9 || 477-6] 60-4 || H PA) 07-98 | 529-7| 55-7 || 495-2} 55-2 | B
14 0 10-20 || 541-9] 60-6 || 475-1] 60-0 || H 22a 11-49 || 531-0| 55-5 || 484-8] 55-2 || W
5) RO 10-18 |) 541-2| 60-2 || 479-9] 59.5 || H 23 0 13-56 || 533-2] 55-5 || 492-3) 55.4 || W
160 09-19 || 541-2) 59-8 || 487-2) 59.0 | H [15 0 O 15-88 || 533-0| 55-6 || 485-8} 55-7 || W
eS 08-66 || 541-1} 59-4 || 496-7] 58-5 || H tO 17-63 || 535-1] 55-7 || 483-5] 56-0 || W
18 0 09-47 || 536-6) 59-0 || 492-0] 58-0 || H 210 18-21 || 535-9} 56-1 || 484-3] 56-6 || W
19 0 07-64 || 535-3] 58-6 || 485-9| 57-6 || W 30 16-41 || 541-8] 56-7 || 485-4] 57-3 || W
20°10 08-59 || 535-5] 58-2 || 486-7] 57-3 || W a0) 14-60 || 548-0| 57-4 || 491-9] 58-2 || W
Pi 0 09-98 || 534-6| 57-9 | 486-9] 57-0 | B 5 0 13-16 || 554-1| 58-0 | 491-7] 58-8 || W
ves) 10-90 || 531-1] 57-7 | 486-8} 57-1 | W 6 0 12-02 || 555-2| 58-6 || 497-2} 59-5 || H
2451 (0) 12-87 || 528-9] 57-7 || 491-9] 57-4 || W wo) 12-51 || 554-3] 59-2 || 501-8} 60-0 | H
m 0 0 15-96 || 536-2| 57-8 || 485-5] 58-0 | W 8 0 12-51 |) 555-5| 59-7 | 501-1] 60-5 || H
1 0 16-93 || 529-1] 58-2 |) 481-9] 58-5 | W 9 0 12-45 || 552-7| 60-1 | 498-8] 61-1 || H
vy) (0) 16-16 || 541-8} 58-7 | 481-9] 59-3 | W 10 O 12-02 || 547-2} 60-3 | 491-5| 61-0 || H
a 17-02] 540-9] 59-4 || 494.6] 60-1 | W 11 O 11-46 || 546-3] 60-1 | 485-6} 60-4 | B
4 0 15-31 || 549-2] 60-0 || 504-5] 60-9 || W 12 0 10-83 || 544-3! 59-8 || 480-6] 59-9 | B
DECLINATION. Magnet untouched, June 18¢—Sept. 214.
Biritar. Observed 2™ after the Declination, s—0:000140.
MAG. AND MET. OBS,
1845.
BALANCE.
Observed 3™ after the Declination, s—=0:000010.
38 HOURLY OBSERVATIONS OF MAGNETOMETERS, JULY ld5O—21, 1845.
Gottingen BIFILAR. BALANCE. ‘ | Gottingen . BIFILaR. BALANCE. % 4
Mean Time || Dectina- | |, | 2.5] Mean Time || Dectina- | £8 ,
of Declina- TION. Cor- |Thermo-| Cor- |Thermo- g 3 of Declina- TION. Cor- |Thermo- 2 at)
tion Obs. rected. | meter. || rected. | meter. ||}O tion Obs. rected. | meter. Sit
ie mM: Le) . Se. Div. 0 Mie. Div. P d. h m. oe 36 Se. Diy. e
15 13 O |] 25 10-83 ]] 544-5] 59-4 || 478-7] 59-5 B | 17 21 O | 25 07-45) 527-6| 57-5 Bi
14 0 09-98 || 542-7| 59-0 | 477-8} 59-0 || B 22,00 06-76 || 524-3} 57-5 WwW
ey (0) 09-87 || 541-0] 58-7 || 478-2] 58-5 B 239/10 09-19 || 524-3] 57-6 WwW
16 0 09-47 || 540-4] 58-3 || 479-3] 58-0 | B|18 0 O 13-36 || 524-7| 57-7 WwW
17 0 06-73 || 537-2) 57-9 || 484-0] 57-5 B 1 tO: 17-84 || 536-4| 57-9 WwW
18 0 05-02 || 533-5) 57-6 || 485-5] 57-0 || B 270 19-61 || 539-9} 58-4 WwW
19 0 05-56 || 532-8} 57-5 | 487-7| 57-0 || H Bo (0) 18-77 || 539-4} 59-0 WwW
20 O 04-64 || 531-6} 57-4 || 494-4] 57-0 | H 4 0 17-54 || 539-6} 59-5 W
PAL) 07-65 || 531-2} 57-4 || 498-4) 57-1 | W a 60 15-51 || 547-6 | 60-0 B
22 0 09-96 || 529-5] 57-3 || 485-8| 57-3 || H 6 0 13-52 || 548-4] 60-5 H
23 0 12-02 || 532:5| 57-4 || 476-6] 57-9 || H 7 #0 11-55 || 548-9} 61-0 H
16 0 O 14-73 || 538-6| 58-0 || 473-4] 58-8 || H 8 0 11-57 || 543-7} 61-4 H
ew) 16-55 || 537-4} 58-6 || 472-9| 59-7 || H 9 0 10-47 || 548-7| 61-7 H
PA Ih) 16-79 || 542-3] 59-3 || 467-8| 60-6 || H 10 0O 10-74 || 550-3) 61-7 H
370 15:38 || 544-1] 60-4 || 478-9} 61-9 || H 110 10-14 || 546-2] 61-7 B
4 0 15-22 || 544-4] 61-5 | 469-5| 63-0 | H 1230 10-80 || 545-7} 61-4 B
5 O 14-20 || 546-0] 62-4 || 463-3} 63-7 || H
6 0 13-19 || 544-5] 63-0 || 457-8} 64-0 | B 13 0 || 25 08-38 ]| 543-2) 61-1 B
a0) 11-98 || 547-0] 63-3 || 459-3} 64-0 B 14 0 07-38 || 537-5} 60-8 B
8 0 11-77 || 550-8} 63-3 || 461-5] 63-8 B 1s 0 06-36 || 539-9] 60-5 B
9 O 11-55 || 551-7} 63-2 || 462-8| 63-6 || B 16 0 07-58 || 539-9) 60-1 B
10 O 10-63 || 548-3} 62-9 || 462-7| 63-1 B 17 0 07-98 || 541-6} 59-8 B
11 0O 10-50 || 547-0} 62-5 || 459-0] 62-6 || W MS 0 05-85 || 540-4] 59-5 B
12 0 09-76 || 544-7| 62-0 || 459-4| 62-0 || W 19 0 07-38 | 538-9} 59-1 H
20 O 04-61 || 533-8] 58-8 H
13 0 || 25 09-24 |] 543-3] 61-5 | 460-0] 61-2 | W VAN =: 12-04 || 529-2] 58-7 WwW
14 0 09-56 || 542-9] 60-9 || 459-3} 60-3 || W 22010 11-03 || 529-4] 58-7 H
15 0 08-92 || 541-4] 60-3 || 462-0) 59-5 || W 23. 0 12-42 || 530-1| 58-7 Hi
16 0 08-58 || 539-6] 59-7 || 468-6) 58-8 || W119 O O 15-39 || 537-1] 58-8 H
ite? 0) 08-06 || 539-6} 59-1 || 473-5| 58-2 || W 10 18-90 || 540-7} 59-1 H
is 0 06-09 || 536-8] 58-6 || 478-6] 57-7 || W 2° 10 20-76 || 542-8| 59-5 H
19 0 07-32 || 533-7| 58-2 || 480-6) 57-2 B a) 19-14 | 541-7) 59-9 H
20 5 07-20 || 534-5] 57-8 || 476-7| 56-8 B 4 0 17-89 || 540-0} 60-4 H
ie O 07-24 || 533-5| 57-4 || 474-3] 56-6 || H 5 (0 16-08 || 544-0] 60-7 H
29970 07-72 || 529-3] 57-2 || 461-1) 56-6 || H 6 0 13-36 || 547-8| 61-0 B
Qanm0 09-35 || 528-0} 57-1 || 467-7| 56-9 || H 253 11-07 || 556-1} 61-2 B
0 0 14-82) 527-8| 57-3 || 470-2| 57-3 B 8 0 10-09 || 553-9} 61-2 B
iL © 18-79 || 532-6] 57-4 | 467-8] 57-5 || H 9 0 10-00 | 554-5} 61-0 B
» 21-23 || 540-6] 57-7 || 467-2} 58-0 || H 10 O 08-48 || 550-0} 60-8 WwW
3) W) 20-89 || 543-0] 57-8 || 467-7| 58-2 || H VITO 08-99 || 546-1! 60-6 WwW
4 0 17-49 || 544-0} 58-0 || 473-9| 58-5 || H Zz 0 09-66 | 544-8} 60-4 WwW
be 0 13-90 || 548-7] 58-4 || 481-8} 59-0 B
6 0 11-54 |) 549-1] 58-8 || 482-2} 59-3 || W | 20 13 O || 25 10-40]| 543-6] 57-3 H
7 0) 10-58 || 554-7} 59-0 || 482-5| 59-5 || W 14 0 10-40 || 539-8| 57-0 H
8 0 11-12] 554-2] 59-1 || 484-2] 59-7 || W 15 0 08-79 || 539-0! 56-9 H
9 0 08-80 || 553-7]. 59-3 || 486-2| 59-7 || W 16 0O 12-25 |) 536-7} 56-7 H
10 O 10-13 || 547-6] 59-3 || 482-4| 459-7 || W 170 10-23 || 539-5| 56-6 H
11 0 10-14]| 546-1] 59-2 || 478-6} 59-5 || H 18 0 06-91 || 540-1} 56-5 H
12 0 07-00 || 544-5] 59-0 || 469-0} 59-5 || H 19 30 08-61 || 535-3] 56-3 wi
20 O 08-09 || 536-7| 56-3 WwW
13 0 || 25 08-32]) 542-7! 58-9 || 469-8] 59-2 | H 2190 08-16 || 529-4| 56-2 B
14 0 08-59 || 541-7] 58-8 || 470-6} 59-0 | H 220 09-19 || 522-5] 56-1 Wi
15 0 08-21 || 542-6] 58-5 || 469-9} 58-7 || H py (0) 10-06 || 517-6} 56-0 WwW
16 0 08-79 || 543-4] 58-3 || 470-6] 58-5 || H | 21 0 0 11-99} 526-1] 56-0 WwW
720 07-51 || 541-5] 58-2 || 475-0] 58-2 | H he 16-01 || 525-0] 56-1 WwW
18 0 05-62 || 537-8} 58-0 || 477-8} 57-9 || H Qrar0 17-56 || 525-0} 56-3 WI
19 0 08-14 ]) 536-3] 57-7 || 472-3] 57-6 || W 3.0 17-46 || 541-2} 56-4 We
20 +O 07-05 || 532-5| 57-6 || 472-3] 57-6 || W 4 0 17-94} 552-8! 56-6 wi
!
DECLINATION. Magnet untouched, June 184—Sept. 214.
BIFILAR. Observed 2™ after the Declination, s = 0-000140. BaLANCE. Observed 3™ after the Declination, k = 0:000010.
Gottingen
Mean Time
of Declina-
tion Obs.
cooooooco:
22
eceoococeoeccooocoocoocoocoococe so
23
coooooooooocoooooooocecosd
BIFILAR,.
HOURLY UBSERVATIONS OF MAGNETOMETERS, JULY 21—Z0, 1540.
DECLINA-
TION.
|
25 15-79
13-05
12-18
11-10
09-86
09-87.
09-77
09-22
09-53
09-42
10-27
09-74
07-84
06-23
25
| 07-22
06-36
07-35
09-06
12-31
14:10
17-61
19-28
17-93
16-01
14-46
13-23
12-06
10-74
10-74
10-50
10-21
09-47
09-44
09-33
08-95
08-56
07-08
05-92
03-54
03-65
03-02
03-70
09-64
14-13
17-80
18-50
18-11
17-29
15-02
13-07
13-50
11-57
11-33
10-54
09-76
25
09-84
rected.
Mic. Div.
BALANCE.
Cor-
55-5
59-6
477-0
481-1
481-2
478-6
467-1
468-4
461-7
473-4
476-0
476-5
466-0
470-4
473-9
488-7
488-4
501-3
530-0
552-9
556-8
547-1
532-3
498-4
481-1
476-0
459-4
405-0
328-1
280-6
304-2
285-7
320-2
350-9
382-2
398-8
437-3
451-2
466-8
482-9
487-0
496-3
499-1
497-7
512-5
511-3
488-7
453-0
446-1
453-7
456-3
455-3
456:5
456-7
454-2
460-7
467-6
465-8
Thermo-
meter.
iw
We
Observer’s
Initial.
wesddedses SoU er OOM Se SOmM mood wuMw adeno |
Observed 2™ after the Declination, s=0:000140.
+ Extra Observations made.
July 234 10h—24¢4 ]0n.
BALANCE,
BIFILAR. BALANCE, < | Gottingen BIFILAR.
ie ‘=| Mean Time || Drouina-
Cor. |Thermo-|| Cor- |Thermo- g s of Declina- TION. Cor- |Thermo-
rected. | meter. || rected. | meter. ||O tion Obs. rected. | meter.
Se. Div. o, Mie. Div. s Gh 30 m. 2 4 Se. Diy. oI
547-3| 56-7 || 485-9] 57-0 || W | 23 13 O || 25 08-18|| 547-1| 54-9
548-7| 56-8 || 487-7| 57-2 | H 14 0 09-59 || 542-8} 55-0
548-2| 56-9 || 492-5| 57-2 | W 1 10-58 || 545-0} 55-0
548-7| 56-9 || 488-1] 57-1 || W 16 0 11-91 || 541-8] 55-0
548-6| 56-8 || 484-3) 57-0 | H 17 O 09-69 || 545-0} 55-0
544.3] 56-7 || 483-3| 56-8 | H 18 0 11-48 | 536-6} 55-0
542.4| 56-6 || 480-6} 56-6 B 19 0 10-47 || 539-8| 54-8
542-6| 56-4 || 479-5] 56-4 B 20 O 05-18 || 540-1} 54-7
21 0 04-51 || 537-0} 54-6
540-9} 56-2 || 479-4) 56-2 B 22 0 06:39 || 532-7| 54-6
540-3 56-0 || 479-6| 56-0 B 2300) 08-61 || 529-0} 54-7
539-3] 55-9 || 481-0] 55-8 B |} 24 0 O 10-43 || 529-0] 54-8
540-7| 55-7 || 479-8| 55-6 B 1 0 13-32 || 530-8} 55-0
541-0| 55-6 || 484-3] 55-4 B 2 0 14-40 || 526-9} 55-4
538-8| 55-4 || 481-7| 55.2 B a0 16-53 || 542-5| 55-8
536-7| 55-2 || 481-1| 55-0 || H 4 0 15-76 || 557-4| 56-3
533-3| 55-0 || 484-1} 54.9 || H 5 0 15-67 || 561-1| 56-7
528-7| 54-9 || 486-0] 54-8 | W 6 0 13-91 || 555-2) 57-1
523-8| 54-8 | 481-9] 54.7 || H 7 0 11-55 || 559-1) 57-4
521-0| 54-8 || 476-5] 54-6 || H 8 0 11-00 || 548-9} 57-5
525-0| 54-7 || 463-2| 54-7 | H 9 O 06-68 |) 543-5} 57-6
530-4| 54-8 || 448.6] 549 | H 10 O 05-55 || 542-3] 57-7
537-5| 54-8 || 439-9] 55.0 | H LE) 08-93 || 534-5] 57-8
545-7| 54-9 || 442.2] 55.2 | H 12 0 07-55 || 538-1] 57-7
546-2} 55-0 || 457-2) 55-4 || H
546-3] 55-0 || 473-6] 55-5 || H 13 0 || 25 03-30 || 536-0} 57-7
551-4] 55-1 || 482-9} 55-5 B 14 Ot|| 24 54.26 |) 523-5) 57-6
552-0} 55-1 || 489-0} 55-5 B 15 Ot 24 55-78 || 527-2) 57-5
551-3) 55-1 || 489-1] 55-3 B 16 Ot 25 08-90 || 546-4) 57-4
547-7| 55-0 || 488-2} 55-1 B il7/ Ot 21-56 || 512-3) 57-3
542-3} 54-9 || 486-5) 54-9 B 18 Ot 99.87 || 552-8| 57-3
542.2| 54-7 || 482-8) 54-7 || W 19 0+ 19-07 || 518-1| 57-1
540-8) 54-5 || 483-1] 54-5 || W 20 oT 16-82 || 518-9] 57-0
2i1e, 10 16-53 || 514-3] 57-1
541-4] 54-3 || 482-6] 54-3 || W 22 a. 20-33 || 516-9| 57-1
540-3} 54-1 || 483-7) 54-0 || W 23 Ot 18-60 || 500-4| 57-2
540-3} 54-0 || 487-4] 53-8 || W725 0 Ot 18-81 || 505-7| 57-6
§40-2| 53-8 || 491-5] 53-6 || W 1 O 17-65 || 529-8] 58-0
540-7| 53-6 || 494-2) 53-3 || W 2E00 17-19 || 538-2} 58-5
538-2| 53-4 || 496-7| 53-1 || W Bh, 62 16-57 || 540-0} 59-1
537-2| 53-3 || 494-1] 53-0 B 4 0 15-02 || 538-9} 60-0
542-3} 53-1 || 486-9} 52-8 B 5 0 14-17 || 546-2} 60-8
541-2} 53-0 || 483-1| 52-8 || H 6 0 13-27 || 558-5] 61-6
527-8| 53-0 || 481-0} 53-0 || H 7 #0 11-28 || 546-3} 62-2
526-3] 53-0 || 473-5| 53-2 || H 8 0 10-30 || 546-2) 62-5
529-0} 53-0 || 459-3| 53-4 || H 9 O 08-72|| 555-4| 62-7
532:0| 53-3 || 456-1| 53-7 || H 10 Ot 03-13 || 539-6| 62-7
536-4| 53-6 || 458-1) 54-1 B 11.20 08-58 || 534-7} 62-5
549-2] 53-9 || 460-1} 54-5 || H 12). 0 06-51 || 535-2] 62-1
541-6} 54-2 || 477-5} 55-0 || H
549-5) 54-5 || 487-3] 55-2 B 13 O || 25 09-20)| 534-6| 61-7
545-7| 54-8 || 494-9| 55-4 || W 14 0 08-38 || 535-7| 61-2
554-6 | 55-0 || 497-4) 55-5 || W 15 0 08-08 || 535-0] 60-7
559-3| 55-0 || 503-9| 55-5 || W 16 0O 07-89 || 534-4] 60-3
557-:0| 55-0 || 501-1) 55-5 || W 17 0 08-79 || 533-8} 59-8
549-6] 55-0 || 499-3] 55-5 B 18 0 06-36 || 533-9} 59-4
550-8} 54-9 || 493-7} 55-5 B 19 0 07-35 || 529-2] 59-0
549-0| 54-9 || 485-0} 55-5 B 20 O 08-83 || 528-0} 58-7
DECLINATION. Magnet untouched. June 184—Sept, 214.
Observed 3™ after the Declination, <=0-000010.
Term-Day Observations made.
40 Hovurty OBSERVATIONS OF MAGNETOMETERS, JULY 25—31, 1845.
Gottingen BIFILAR. BALANCE. a Gottingen BIFILAR. BALANCE, = pi
Mean Time || DECLINA- |= _—_,— > | a cs |) lean Dime” || DE CLIN A=: || Ss om || ee a 2
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| $°& | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-| 2's
tion Obs. rected. | meter. || rected. | meter. | 5 “| tion Obs. rected. | meter. || rected. | meter. || 5 s
d hh. m. 2 i Se. Div. a Mic. Div. S do. (ht, “ane e. a Se. Div. e Mic. Div. 2
25 21 O || 25 10-03 || 528-5} 58-4 || 468-8] 58-2 || H | 29 5 O || 25 11-75|) 546-5} 59-4 || 484-7| 60-5 || H
22 0 10-09 || 525-8} 58-3 || 469-6] 58-2 || H 6 0 09-26 || 546-6| 60-0 || 473-2) 61-0 || W
23 0 09-89 || 527-8| 58-2 || 470-8] 58-3 | H ZO 09-71 || 547-8} 60-5 || 477-6| 61-3 || W
26 0 0 11-24 || 529-3} 58-3 || 466-8} 58-5 || H 8 0 10-77 || 545-9} 60-8 | 474-3] 61-4 | W
ne) 14-77 || 535-5| 58-5 || 469-5) 58-9 || H 9 0 10-60 || 545-2] 60-8 || 473-3} 61-3 | W
20 17-36 || 539-8| 58-9 || 471-0} 59-5 || H 1050 11-14 || 543-7} 60-8 | 471-3| 61-2 | W
3 (0 16-30 || 532-5} 59-3 || 466-6} 60-0 | H 1150 11-00 || 543-2) 60-5 || 467-2] 61-0 | H
4 0 15-47 || 538-5| 59-8 || 474-2] 60-4 || H 12 0 09-57 || 542-7] 60-2 || 465-1] 60-5 || H
5 0 14-77 || 541-9| 60-1 | 471-5] 60-7 || H
Gar0 14-20 || 545-7| 60-5 || 483-3} 61-1 | W 13 0 || 25 09-94 || 542-6] 59-9 || 462-9| 60-0 || H
7 +O 12-38 || 550-4| 60-7 || 484-9} 61-3 || W 14 0 09-79 || 541-5] 59-5 || 459-6| 59-5 || H
Sino 11-59 || 547-1} 60-8 || 483-2} 61-3 | W 15 0 08-41 || 538-7| 59-0 || 462-1| 59-0 || H
9 0 11-41 || 545-1] 60-8 || 477-7| 61-2 || W 16 0 08-63 || 538-0] 58-5 || 465-5) 58-4 || H
10 O 10-92 || 545-6} 60-6 || 472-3; 61-0 | W PO 07-74 || 537-4| 58-0 || 471-4] 57-7 || H
110 08-34 || 539-4| 60-4 || 471-8} 60-7 | H 18 0 06-73 || 537-8} 57-5 || 469-3} 56-9 || H
12 0 08-61 || 538-2] 60-3 || 459-8} 60-5 || H 19 0 07-07 || 536-2| 57-3 || 473-2] 56-5 || W
20 0 07-37 | 535-1| 57-0 | 473-6| 56-2 || W
27 13 0 || 25 09-15 |) 536-9) 61-2 || 441-8) 60-5 || B 21 0 07-81 || 531-0} 56-7 || 472-4! 56-1 B
14 0 10-41 || 536-5} 60-6 || 447-3] 59-7 || B 22' 0 08-28 || 529-6] 56-5 || 475-3) 56-3 || W
15 0 09-86 || 534-4} 59-9 || 457-5] 58-9 || B 23 0 11-41 || 529-8] 56-7 || 471-9} 56-9 || W
16 0 09-32 || 535-4| 59-3 || 460-1] 58-2 | B | 30 0 O 13-94 || 533-0} 57-0 || 465-9} 57-7 || W
17 0 08-85 || 535-3] 58-7 || 463-3] 57-5 || B 1oao 16-75 | 533-5| 57-7 || 464-7| 58-6 | W
18 0 10-33 || 532-6| 58-0 || 467-7] 56-8 || B 2 0 17-96 || 542-0} 58-4 | 460-3] 59-5 || W
19 0 06-79 || 532-1] 57-7 || 465-2} 56-5 || H 3 0 15-99 || 547-7} 59-2 | 452-1) 60-3 | W
20 O 06-41 || 530-4| 57-4 || 470-1| 56-4 || H 4 0 13-79 || 545-8] 59-9 | 464-5] 61-0 || W
21 O 08-28 || 525-5| 57-3 || 475-0} 56-4 || W 5 (0 12.92 || 547-8] 60-5 | 470-2} 61-6 || W
22 0 09-94 |) 526-2) 57-1 || 473-9] 56-5 || H Gro 12.42 || 538-3} 60-8 | 477-3] 61-8 | H
23 0 13-02 || 523-9| 57-1 || 469-6| 56-8 || H The) 10-06 || 553-1] 61-0 | 490-4} 61-8 || H
28 0 0 14-46 || 528.2} 57-2 | 466-3] 57-5 || H 8 0 08-77 || 548-8} 61-0 || 496-1] 61-5 || H
0 15-27 || 530-5| 57-8 || 463-7| 58-5 || H 9 0 08-80 || 543-9} 60-7 || 495-1] 61-2 || H
2 0 15-47 || 537-5| 58-4 | 476-9] 59.5 || H 10 O 07-81 || 542-6] 60-5 | 483-0| 61-0 | H
3 0 15-41 || 541-1] 59-2 || 483-5) 60-2 || H 11970 09.29 || 541-1} 60-3 || 474-2) 60-5 | B
4 0 13-32 || 541-7] 59-9 || 487-7} 61-1 || H 12 0 09-02 || 544-9| 60-0 || 467-7} 60-3 | B
oy (0) 11-52 || 549-2} 60-5 || 483-5] 61-5 | H
6 0 10-67 || 548-7} 61-1 || 486-2} 62-2 || B 13 0 || 25 08-88 || 544-0] 59-8 | 465-8] 60-0 | B
7 0 11-37 || 551-7] 61-5 || 482-4} 62-2 | B 14 0 08-03 | 540-7] 59-5 || 465-4] 59-6 | B
Sea0 10-28 || 547-7| 61-7 || 491-5] 62-2 | B 15 0 07-57 || 540-4} 59-2 | 462-5] 59-3 | B
9 O 10-54 || 544-7| 61-9 || 488-9| 62-2 | B 16 0 09-10 || 543-8] 58-9 || 456-2} 59.0 | B
10 0 11-10 |) 543-3] 61-8 || 477-7| 62-0 || B Le ao 03-60 || 538-3] 58-6 | 465-4) 58-6 | B
Wits) 11-25 || 541-6} 61-5 || 470-9] 61-5 || W 18 0 06-27 || 536-5] 58-3 || 473-8) 58-2 || B
12 0 11-24|| 540-0| 61-1 || 465-8] 60-9 | W 19 0 05-92 || 533-0} 58-2 | 481-4) 58-0 || H
20 0 07-00 || 530-4} 58-0 | 478-0| 58-0 || H
13° 0 || 25 10-60) 538-4] 60-6 || 464-5} 60-3 || W 21° 0 08-08 |) 521-1} 58-0 || 477-5} 58-0 || W
14 0 10-54 || 538-9| 60-0 || 463-6} 59-5 | W 22 0 10-43 || 523-9} 58-0 || 468-7| 58-2 || H
15 0 10-23 || 537-1] 59-4 || 464-2] 58-6 | W 23 0 12-69 || 532-1] 58-1 |) 457-3] 58-7 || H
16 0 09-37 || 535-8| 58-7 || 467-4) 57-8 || W131 0 0 15-41 || 538-1] 58-7 || 439-0) 59-5 || H
17 0 08-59 || 534-4] 58-0 || 477-2| 57-0 | W 1 0 16-68 || 541-0} 59-2 || 435-5} 60-3 || H
18 0 06-44 || 536-1 | 57-4 || 479-9| 56-2 | W 2 0 17-15 || 544-9] 59-9 || 445-4) 61-0 | H
19 O 06-74 || 533-2) 56-7 || 487-9} 55-4 | B 3-0 15-89 || 547-1} 60-2 || 448-5} 61-0 || H
20 0 06-66 || 528-8} 56-1 || 488-4} 54-9 | B 4 0 14-30 || 546-1} 60-3 || 462-0| 61-0 || H
21 O 07-10 || 524.4] 55-7 || 492-2} 54.8 | H oy 40 12-62 || 547-3] 60-3 || 466-5| 61-0 || H
22 0 09-57 || 523-7| 55-5 || 490-5] 55-0 || H i) 12-09 || 548-3| 60-2 || 472-2) 60-8 || B
23 0 13-39 || 524-8] 55-4 || 485-8} 55-4 | H 7 O 07-99 || 551-0} 60-1 || 473-6} 60-5 | B
29 0 0 15-49 || 527-5) 55-8 || 481-8] 56-0 | B | 8 0 10-68 || 546-9} 60-0 || 471-4] 60-2 | B
1 0 17-34 || 529-1| 56-2 || 476-9} 56-9 || H a) 10-70 || 547-3} 59-7 | 465-1) 59-8 || B
2 0 17-12 || 535-2| 57-0 || 475-9} 58-0 | B 10 O 10-25 |) 545-6] 59-4 | 464-6] 59-5 | B
3. (0 16-12}| 539-0| 57-9 || 480-4) 58-8 | B 60) 09-96 || 543-9] 59-1 || 464-3) 59-0 | W
4 0 14-11 || 543-5] 58-7 || 482-1) 59-7 || W 120 09-39 || 542-5] 58-9 || 465-71 58-8 | W
DECLINATION. Magnet untouched, June 184—Sept. 214.
Birimiar. Observed 2™ after the Declination, s=0-000140. BALANCE. Observed 3™ after the Declination, s—0:000010.
Hourly OBSERVATIONS OF MAGNETOMETERS, JULY 31—AvuGusT 6, 1845. 41
Gottingen BIFILAR. BALANCE.
Mean Time DECLINA-
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter.
Gottingen BIFILAR. BALANCE,
Mean Time || DEcLINA-
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter.
Observer’s
Tnitial.
Observer’s
Initial.
o / Se. Diy. G) Mic. Divy- a
25 12-11]| 509-8} 57-8 | 459-6] 57-9
13-69 | 507-2] 57-9 || 461-4] 58.2
18-13 505-3] 58.2 || 463-8
18-37] 511-9] 58-7 || 467-9
21-29 | 527-5] 59-2 || 462.3
20-77 | 531-8] 59-9 || 473-8
15-17 || 558-5! 60-4 || 506-7
16-25 || 538-7] 61-0 || 517-9
14-96 | 556-9| 61-7 || 517-1
12-51 || 547-0| 61-9 || 519-4
12-76 | 552-7] 62-0 || 497-3
12-90 | 547-1] 61-9 || 482-5
10-97 || 548-1] 61-7 || 475-5
10-81 | 543-7| 61-6 || 472-3
08-41 || 546-0| 61-3 || 460.2
07-64 || 544.0 447.4
e f Se. Div. 2 Mic. Div. ©
25 09-73 || 540-7| 58-6 || 466-6| 58.4
09-15 || 540-4) 58-3 || 468-1}
08-99 || 539-8; 58-0 || 468-6
08-95 || 539-4| 57-7 || 469-2
07-98 | 540-6] 57-5 || 469-2
06-23 || 538-0] 57-2 || 470-3
05-32 || 534-4} 57-0 || 476-3
04-84 || 530-3} 56-8 || 480:3
04-81 || 528-7) 56-7 || 480-3
06-97 || 529-7} 56-7 || 471-5
09-26 || 533-8| 56-7 || 458-6
13-57 || 540-4] 56-9 |; 451-0
17:76 || 551-6| 57-3 || 447-5
558-7| 57-9 || 458-7
539:8| 58-7 || 468-6
555-5] 59-3 || 488-1
546-9} 59-9 || 560-7
552-5} 60-4 || 569-4
549-1 : 537-2
554-3 . 506-9
549°2
547-4
551-8
535-3
edgnnmnhin mmdddddedgunemon |
SSS SSS SS SSeS 55905!
09-76 || 540-9 440-8
05-83 | 537-7| 60- 435.3
06-12] 535-3 ‘8 || 444-9
16-08 | 531-9 . 432-7
13-36 | 534-8 . 425-9
07-91 || 527-3 : 436-7
04:88 | 525.3 : 461-8
05-56 || 529-4 : 469-8
07-82 || 530-3 . 479-7
08-28 || 523.9 . 467-6
10-51 || 521-3 : 473-0
14:48 | 523.2 : 482.4
15-85 || 531-0 ° 476-6
13-81 || 537-9 ‘ 488-3
15-20 | 546-5 490-2
14-50 | 553-3 483-7
12-11 |) 547-4 : 475-5
11-10} 547-0 : 472-6
10-01 | 541-5 : 467-8
10-04 | 545-6} 64. 466-4
09-69 || 545-5 ; 463-5
10-01 || 541-2 . 463-4
07-78 | 537-8] 63. 465-8
09-86 | 539-5 459-6
onocoaeoasaoaocooacoooqcoocoo or
SS
534-5
535-6
531-0
541-5
541-6
539-6
533-9
529-8
524:3
522.8
529-9
531-3
539-5
530-8
540-6
041:5
545-0
548-9
300-4
550-2
10-45 | 543-5
09-86 || 546-3
06-26 || 534-6
05-92 || 540-9
Or
oocqo OSC oo OOo Goo Co oo oo oo eo
09-84 || 539-2 459-0
09-39 || 537-5 : 462-9
08-11 || 535-9 466-4
10-41 || 554-6 ; 465-5
09-22 || 533-7 2 466-2
06-46 || 530-4 . 465-9
07-10} 527.4 : 465-9
06-14 || 527-3) 60- 467-5
08-19 |) 527-7 6 466-9
11-35 |) 523-7 : 466-0
14-10 |) 522-0 . 467-6
17-20 || 520-9 . 460-9
19-17) 530-9} 60- 450-2
19-12} 538-7} 61- 458-8
17-36 || 535-1 2- 470-0
13-97 || 532-4 . 463-9
=
Hem tttseeseeseeseseseurssntreere mndddddumwonobmnowddddda |
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
25 (11-00)| (540-0)
11-52 || 530-3
14-82] 544.2
07-49 | 540-6
04-41 || 537-2
05-60 || 534-6
04-71 || 532-6
09-57 || 517-2) 57-8
Cres SSS Soo 1S OSS eS
WHS SS
PISO OOS ew bodes
loecoooceco
P DECLINATION. Magnet untouched, June 184—Sept. 214.
Birinar. Observed 2™ after the Declination, k=0-000140. BALANCE. Observed 3™ after the Declination, x=0:000010.
+ Extra Observations made.
Aug. 34131. The quantities in parentheses are approximate, and have been used in summations.
MAG. AND MET, OBs., 1845. L
42
Gottingen
Mean Time
of Declina-
tion Obs.
d.
6
SooNtCoOoOOS
eoqooqocoo OO OO oo 0 C'S © Oo 2 oS Oo oc
Ss
cCcocoooocooocoooocoooooocoooocoqose
BIFILAR.
Hourty OBSERVATIONS OF MAGNETOMETERS, AUGUST 6—11, 1845.
DECLINA-
TION.
25
25
07-20
06-26
06-53
05-56
06-34
14-94
14-89
16-38
18-74
20-79
20-32
19-02
17-06
14-13
11-68
10-09
10-43
10-13
11-28
06-93
09-53
BIFILAR. BALANCE.
Cor- |Thermo-|) Cor- |Thermo-)
rected. | meter. |} rected. | meter.
Se. Div. ° Mie. Div. 3
543-7| 63-8 || 486-5| 65-3
552-7) 64-5 || 484-5] 65-9 |
548-9| 64-8 || 477-8| 66-0 |
551-8} 64-9 || 469-8| 65-6
548-2} 64-7 || 466-0] 65-4
545-9| 64-5 || 461-1] 65-2 |
542-5| 64-3 || 458-7] 65-0
546:7| 64-0 || 434-1) 64-5
542-4) 63-7 || 443-0] 64-0
539-7) 63-4 || 453-6| 63-7
541-7] 63-1 455:5| 63-3
538-3} 62-8 || 461-8] 62-9
542-5} 62-5 || 460-0| 62-5
540-6] 62-2 || 465-7) 62-1
534:0| 61-9 || 466-6} 61-6
524-5| 61-7 || 470-3| 61-4
533-7| 61-4 |) 462-1| 61-3
523-0} 61-3 || 465-9] 61-3
524-7| 61-3 || 461-3] 61-6
525:3| 61-6 || 452-2} 62-2
530-1} 62-0 || 459-5) 62-9
536:3| 62-6 || 466-4] 63-2
539-2| 63-0 || 486-1] 64-0
546:5| 63-5 || 490-4} 64.4
543-0| 63-9 || 492-9) 64-6
545-8} 64-0 || 489-1] 64-8
545-0| 64-0 || 479-3) 64-7
547-2} 64-0 || 467-3| 64-7
547-3} 64-0 || 464-5] 64-5
545-4] 63-9 || 463-6} 64-3
542-5] 63-6 || 460-0} 63-9
544-0} 63-3 | 451-9) 63-5
542-3} 63-0 || 444-3] 63-1
529-8] 62-6 || 407-9] 62-6
532-9} 62-3 || 390-8| 62-2
540-6| 62-0 || 402-8) 61-8
537°5| 61-6 || 432-4) 61-2
531-8] 61-2 || 455-3) 60-5
530-5} 60-9 || 465-0} 60-3
525-8} 60-6 || 470-4| 60-0
516-1] 60-3 | 471-5) 59-9
517:7| 60-3 | 464-1) 60-0
517-5} 60-3 | 464-1} 60-3
524-0] 60-5 | 456-0] 61-0
525-2) 61-0 || 451-8] 61-9
532-5| 61-7 || 455-5| 62-8
537-7| 62-6 || 461-2} 63-8
549-4| 63-5 || 464-1) 64-7
552-4| 64-4 || 467-7| 65-5
547-9| 65-1 | 479-7| 66-7
548-0! 65:5 || 476-1} 66-5
547-2} 65-8 || 463-3) 66-5
545-3) 65-8 || 463-2| 66-5
550-0| 65-7 || 457-6) 66-2
547-6) 65-2 || 451-4 | 65:5
| 545-1) 64-9 || 444-4 65-0
DECLINATION.
Observer’s
Initial.
|
|
Wont eee ee ese SS PSS aes Serbo
Observed 2™ after the Declination, k=0°000140.
+ Extra Observations made.
Aug, 84194.
6ttingen
Mean Time
of Declina-
tion Obs.
COnnaunrwhwnro&
—
="
12
10
11
ooooococo
| DECLINA- ||
|
Seoqqoo qo sc eq ce Soo SS oO Co ooo >
| 25 15-44
TION.
° ,
10-45
10-21
17:33
07-11
04-64
(06-00)|
07-51
10-36 |
11-10
14-06
16-15
25
BIFILAR. BALANCE.
Cor- |Thermo-| Cor- |Thermo-
rected. | meter. || rected. | meter.
Se. Diy. ty Mic. Div. S
544-0} 64-6 || 440-2) 64-5
540-4} 64-2 || 424-5] 64-1
535-0} 63-8 || 429-9| 63-6
533-6| 63-4 || 409-8] 63-1
535-3 | 63-0 || 434-0) 62-6
536-4| 62-7 || 458-5] 62-2
(533-4) -+-++. (466-5) --.--.
530-4| 61-9 || 474-5| 61-7
528-9; 61-6 || 471-7} 61-0
526-4) 61-3 || 481-5) 61-0
523-0! 61-2 || 471-4] 61-0
525-5) 61-0 || 459-3) 61-0
527-0| 61-0 || 445-5! 61-0
342-8) 61-0 || 447-8| 61-0
537-6| 60-9 || 467-8; 60-8
543-3} 60-8 || 474-8} 60-7
953-5} 60-7 || 488-6) 60-4
|| 544-2} 60-5 || 506-5! 60-0
541-5| 60-2 || 516-9} 59.7
546-6} 59.9 || 504-5! 59-3
|| 543-4! 59-6 || 492-4! 59.0
542.2! 59-3 || 484-2] 58.7
043-7| 59-0 | 479-8) 58-5
550-6| 58-8 || 438-1) 58-3
|| 542-3] 58-1 || 468-1] 58-1
538-0); 58-0 || 458-2! 58-0
837-2| 57-8 || 466-5| 57-8
538-0| 57-7 || 476-6} 57-7
540-3} 57-6 || 480-8] 57-5
| 539-6| 57-5 || 485-4| 57-4
3 || 538-0| 57-4 |} 490-4| 57-3
531-0} 57-4 || 499-9| 57-3
| 531-4] 57-4 || 495-8] 57-5
|| 528-4] 57-4 || 496-8] 57-8
3 || 525-3) 57-7 || 481-4) 58-2
| 522-7] 58-1 || 475-5| 58-7
| 531-2] 58-5 || 471-9| 59-2
|| 535-9] 59-0 || 480-0| 59-7
| 537-9| 59-5 | 483-0; 60-3
542-1} 60-0 || 483-4] 60-8
543-2} 60-5 || 492-7] 61-3
545:0| 60-9 || 495-9; 61-7
549-1} 61-1 495-0} 61-7
547-6| 61-0 | 483-8]. 61-5
545-0| 60-7 | 477-8| 61-0
544-6| 60-4 || 473-2} 60-6
542-3} 60-1 || 470-2| 60-2
541-4] 59-9 || 467-0] 59-8
540-4] 59.6 || 467-2} 59-4
538-3] 59-3 || 470-1] 59-0
538-7| 59-0 || 471-2} 58-7
538-6] 58-8 || 471-9} 58-5
537-9] 58-5 || 477-3] 58-2
|| 537-6} 58-2 || 483-6] 58-0
535-8} 58-0 || 487-0] 57-7
532-9! 57-8 |! 486-0] 57-5
ui
BALANCE.
Magnet untouched, June 184—Sept. 214,
Observed 3™ after the Declination, t=0-000010.
Observer’s
Initial.
Mord WW eee eee SWS Se Serer eee eh
The quantities in parentheses are approximate, and have been used in summations.
Hour.Ly OBSERVATIONS OF MAGNETOMETERS, AUGUST 11—16, 1845. 43
>
server's
BIFILAR. BALANCE, Gottingen BIFILAR. BALANCE.
Mean Time || DecLiIna-
of Declina- TION. Cor- |Thermo-| Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter. ||
Gottingen
Meamenime || DECLINA= | ae |
of Declina- | TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. rected, | meter. || rected. | meter.
Ob
Observer’s
Initial.
Initial.
Sc. Diy. 2 Mic. Div. S
551-8} 58-5 | 472-8} 59-1
548-9} 58-7 | 473-4] 59-2
547-0} 58-6 || 471-8] 59-2
549-6| 58-5 || 470-5| 59-0
551-7| 58-4 || 468-7] 58-7
58-3 || 468-5] 58-5
58-1 || 469-6} 58-3
467-0
a.
14
Se. Div. 3 Mic. Div. Gs
529-4| 57-7 || 480-5] 57-4
525-8] 57-7 || 472-4] 57-3
526:5| 57-6 || 473-1
57-7 || 472-4
57-7 || 468-0
57-7 || 466-9
57-8 || 468-1
57-8 || 475-0
57-9 || 481-0
57-9 || 484-7
57-9 || 481-7
475-5
481-2
477-6
476-3
474-9
Seo eerse eels
466-3
462-1
467-8
466-6
477-1
474.3
471-9
476-5
473-3
464.9
458-0
445-5
443-9
453-6
| 483-3
502.3
537°8
048.1
539-6
501-7
485-7
476-2
474-0
473-0
oooooocooceoeooo:
475-9
472-2
472-4
475-7
482-8
482-6
493-0
500-0
496-6
494.0
490-8
475-2
461-7
472-1
475-5
481-6
485-3
489-8
485-1
| 475-3
469-8
| 467-9
468-6
460-0
ooo oo Sooo oo oo So SO oo o Oo So ooo 'S
470-7
542-4| 56-1 || 470-7
540-3| 55-8 || 471-9
538-8] 55-4 || 474.9
538-0| 55-1 || 481-5
535-5| 548 || 485-7
531-9| 54-5 || 489.7
525-7| 54.2 | 494.9
520-3} 54-0 || 497-4
518-7 | 502-8
521-4| 53-9 | 492.7
529-4| 54.0 || 487-8
539-6| 54-3 || 488-0/
545-4 5
547-0
555-9
544.4
08-83 | 542-0
09-53 | 543-7
10:03 | 545-6
10-80 || 542-2
10-20 | 544.6
10-41 || 543-7
10-04 | 543-4
0
0
0
4
0
0
0
0
0
0
0
0
0
0
7
0
0
0
0
0
0
0
0
0
Hens seseseses Sere Whew OOO eee See ce cob itt |
| 460-8
460-6
462-9
465-2
473-0 |
478-6
478-5
480-5
|| 479.7
‘9 || 477-3 |
527.2 9 || 472-0
531-6 9 | 461-9
538-1 -1 || 454-8 |
542.3 5 || 454-7 |
546-6 9 || 463-2
' 549.1 3 || 463-9° 59.0
4o44seeueeumrnmme tins seseseseue twits dgobu own mann a |
eooocoocooccocococeNcecococo$so
ocoqcooeoecsce coc ed >
Mnsesdestomwteod
DECLINATION. Magnet untouched, June 184—Sept. 214.
Brritar.. Observed 2™ after the Declination, k=0-:000140. BALANCE. Observed 3™ after the Declination, k=0-000010.
t+ Extra Observations made.
44 HovurLy OBSERVATIONS OF MAGNETOMETERS, AuGusT 17—22, 1845.
Gottingen BIFILAR. BALANCE. ‘ | Gottingen BIFILAR. BALANCE. % a
Mean Time || DecLina- 2 -&| Mean Time || Decrina- Es
of Declina- TION, Cor- |Thermo-|| Cor- |Thermo-|| 2°] of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-| ¢°z
tion Obs. rected. | meter. || rected. | meter. 5 1 tion Obs. rected. | meter. || rected. | meter. 5 =
a Ty ae i} 8 Se. Diy. g Mic. Div. 5 dois) eras|| ee ns Se. Div. q Mic. Diy. e
17 13 O || 25 01-34 || 531-8] 56-2 || 421-8} 56-4 | B | 19 21 O || 25 05-67|| 528-7| 53-7 || 472-5] 53-5 | B
14 0 04-91 || 537-8| 56-0 || 434-0} 56.2 | B 22 a0) 09-29|| 520-1] 53-6 || 474-9] 53-5 | W
15> NOt 16-15 || 529-5] 55-9 || 423-3) 56-1 | B 23 0 14-41 || 516-0| 53-6 || 477-6| 53-5 || W
16 Ot 08-25 || 548-2| 55-8 || 366-3| 56:0 | B | 20 0 0 16-75 || 521-6] 53-6 || 476-0} 53-7 || W
Lie Or 01-95 || 538-4] 55-7 || 404-0) 55-9 | B i (H) 17-67 || 527-4| 53-7 || 474-9| 53-9 | B
18 0 11-10 || 525-6| 55-6 || 425.2) 55-8 || B -2, 0 18-32 || 535-2] 53-7 || 475-1] 54-2 | W
19 O 10-33 || 527-9| 55-4 || 428-6] 55-7 || H 3 30 17-13 || 541-4} 53-9 || 479-4| 54-4 | W
20 O 13-22 || 530-4| 55-3 || 440-7| 55-6 | H 4 0 14-80 || 550-3} 54-0 || 482-2) 54-6 | W
21 0 11-69 || 528-7| 55-4 || 444-7) 55.8 || W 5 0 11-96 |) 553-1| 54-3 | 488-9) 54-8 || W
22 0 11-79 || 518-1} 55-4 || 449-4} 56-0 | H 6 0 10-09} 553-0| 54-4 || 489-2} 55-0 | H
23 0 13-17 || 518-5| 55-8 || 438-8| 56-4 | H oA 08-46 || 547-5] 54-5 |) 486-4) 55-2 | H
18 0 O 16-15 || 516-4| 56-3 || 446-8| 57-2 | H 8 0 08-83 || 545-8| 54-5 || 480-1| 55-2 | H
iL (8) 19-86 || 523-6| 57-0 || 471-8) 58-2 | H 9 0 08-79 || 550-5| 54-5 || 474-7) 55-0 | H
2 0 19-51 || 535-7] 57-8 || 489-6) 59-2 || H 10 O 09-56 |) 546-1} 54-4 || 475-1) 55-0 || H
3. (0 19-61 || 542-7) 58-5 || 494-0} 59.7 || H 1iaG 09-35 || 545-0| 54-3 || 472-0| 54-7 | B
450 18-13 || 548-0} 59-0 || 497-6} 60.2 || H 12 0 09-13 || 543-4] 54-1 || 472-2} 54-5 || B
5 (0 12-55 || 539-5| 59-4 || 496-6] 60.7 || H
6 0 08-90 || 544-2} 59-9 || 492-4) 60-8 || B 13. 0 || 25 08-82) 543-0] 54-0 || 472-0] 54-2 | B
7 0 07-98 || 543-4| 60-0 || 488-5) 60-9 || B 14 0 08-68 || 543-4] 53-8 || 472-4) 54-0 || B
is) @ 08-99 | 542-5] 60-1 || 477-1| 60-9 || B 15°90 09-30 || 545-0} 53-7 || 472-4] 53-7 || B
e) 09-39 || 546-4| 60-2 || 466-9| 60-7 | B 16 0 07-64 || 544-3] 53-5 || 472-6} 53-5 | B
10 O 09-42 | 545-0] 60-0 || 464-3] 60-5 || B Lien 06-79 || 542-8} 53-3 || 478-3] 53-3 || B
iit (3) 09-27 || 543-5] 59-8 || 462-7| 60-2 || W 18 0 05-15 || 539-8| 53-1 || 482-4] 53-0 | B
12 2 09-60 || 539-8| 59-5 || 463-4) 59.8 || W 19 0 04:37 || 536-2} 53-0 || 482-7| 52-9 || H
20 0 03-99 || 530-0| 52-8 || 485-6} 52-9 || H
13 0 || 25 09-69) 538-4] 59-3 || 464-1] 59-5 || W 21 0 04-55 || 520-6] 52-8 || 485-6} 52-9 || W
14 0 09-49 || 539-1] 59-0 || 465-5) 59-1 | W 22 0 07-37 || 513-9] 52-8 || 483-2} 53-2 | H
iy (0) 09-56 || 539-9| 58-7 || 466-0) 58-7 || W 23 0 11-44] 514-4] 53-0 || 474-5] 53-4 || H
16 0 09-02 || 538-9| 58-4 || 467-3) 58-4 || WJ 21 0 0 15-91 || 520-8] 53-3 || 466-3) 54-3 || H
76 X0) 08-45 || 538-4] 58-1 || 471-1} 58-0 | W eG 18-70 || 529-8) 53-9 || 464-4| 55-0 || H
18 0 07-37 || 537-6] 57-8 || 476-3) 57-7 || W 2 0 18-77 || 539-4| 54-3 || 459-8| 55-5 || H
19 25 05-92 || 531-8| 57-5 || 482-9) 57-2 || B 3.0 16-68 || 543-0} 54-8 || 466-3| 55-8 || H
20 O 06-53 || 529-3| 57-3 || 484-8] 57-1 B 4 0 14.28 || 546-0| 55-0 || 476-4} 56-2 || H
yl (0) 05-92 || 521-4] 57-1 || 480-5| 57-0 || H 5 0 11-51 || 547-1) 55-5 || 480-3) 56-5 | H
22, 0 09-79 || 517-4| 57-0 || 478-3] 57-0 || H 6 0 09-96 || 546-2] 55-9 || 481-2] 56-7 || B
23 0 14-13 || 516-1} 57-0 | 474-7| 57-2 || H “ 09-86 || 547-8] 56-1 || 476-8| 57-0 || B
iy @ @ 16-06 || 533-4] 57-0 || 460-8] 57-3 || B Seo 10-41 |} 547-5) 56-3 || 470-5} 57-0 || B
1 O 17-70 || 536-4] 57-1 || 458-9] 57-3 || B Io 10-23 || 547-7| 56-3 || 468-9] 57-0 || B
2 0 18-43 || 535-6; 57-1 || 462-5] 57-3 | B 10 0 10-00 || 545-6} 56-2 |) 467-0} 56-7 || B
3 0 19-28 |) 542-8} 57-1 || 469-4} 57-3 || B TIO: 10-20 || 543-8} 56-0.|| 466-2} 56-5 || W
4 0 17-02 || 540-2| 57-0 || 483-5] 57.2 || B 12 0 09-19 || 543-2} 55-7 || 463-6] 56-0 | W
5 0 14-33 || 552-0| 57-0 || 476-1] 57-1 | H
6 0 10:94 || 549-2) 56-9 || 476-2) 56-9 || W 13 O |) 25 08-82] 542-9} 55-4 || 464-4] 55-6 || W
gc © 09:59 || 547-2] 56-8 || 478-9] 56:7 || W 14 0 07-87 || 548-0] 55-1 || 463-3} 55-1 || W
8 0 10-04 |} 550-9} 56-6 |) 474-6| 56-4 || W 15 0 08-14 || 547-2| 54-7 || 464-7} 54-5 | W
2) 0 09:71 || 549-2| 56-4 || 472-2) 56-2 || W i) 07-37 || 544-7 | 54-2 || 467-5) 53-8 | W
10 O 09:73 || 547-3] 56-1 || 470-2} 55-9 || W Iie (0) 06-90 || 543-8} 53-7 || 470-0) 53-1 || W
LO 09-35 || 546-6| 55-8 || 470-6] 55-7 || H 18 0 05-36 || 539-0} 53-2 || 476-8} 52-5 || W
12 0 09-08 || 545-0! 55-6 || 471-6] 55-4 || H 19 0 05-52 || 537-2) 52-8 || 482-3] 52-0 || B
20° 0 04-37 || 533-6] 52-5 || 484-2] 51-8 || B
13. 0 || 25 08-45 || 544-5} 55-3 || 470-7) 55-2 | H 210 05-80 || 527-1} 52-2 || 483-4] 51-7 || H
14 0 09-02) 543-5] 55-1 || 471-7| 55-0 | H 22 0 09-79 || 522-8} 52-2 |) 485-9] 52-1 || H
15 0 09-76 || 543-0] 54-9 || 468-9| 54-6 || H 23 0 13-77 || 522-9| 52-3 || 474-8] 52-7 || H
16 O 09:19 || 541-6] 54-7 | 467-0| 54-3 | H | 22 0 0 17-70 || 529-9} 52-8 || 475-7| 53-6 || B
Wan) 09-02 || 542-1) 54-4 || 464-8] 54-0 | H HW) 18-84 || 534-8] 53-5 || 477-1] 54-8 || H
18 0 06-77 || 537-6| 54-2 || 470-4] 53-8 | H Pj (0) 20-08 || 544-1] 54-6 || 471-6| 55-8 |} B
NS) 06-88 || 534-4] 54-0 |. 473-4) 53-7 || W 3 0 18-77 || 541-6} 55-6 | 479-3} 57-0 || B
20 O 05-72! 534-0! 53-8 | 476-7! 53-5 | W 4 0 17-15! 544-0! 56-6 || 483-8! 58-0 H
DECLINATION. Magnet untouched, June 184—Sept. 214.
BiFrizar. Observed 2™ after the Declination, k=0:000140. BALANCE. Observed 3™ after the Declination, s=0-:000010.
¢ Extra Observations made. .
Aug. 194 19h—22h, Workmen engaged with scythes outside the Observatory ; the iron removed to a distance during observations.
Gottingen
Mean Time
of Declina-
tion Obs.
HourLy OBSERVATIONS OF MAGNETOMETERS, AUGUST 22—27, 1845.
DECLINA-
TION.
25 14-35
11-88
11-00
05-82
09-89
09-74
08-97
08-21
coooooooF
25 07-20
02:01
04-98
05-80
08-61
08-16
09-06
07:55
10-50
11-24
13-07
15-94
19-78
20-50
19-53
17-98
12-98
10-90
10-27
10-03
09-59
06-29
06-44
07-37
cooocooocoocococoeocococococococe
25 07-42
05-16
07-42
14-21
03-40
04-42
05-38
05-38
06-79
10-18
13-61
16-99
18-37
19-55
17-89
16-26
12.22
10-20
09-59
09.22
09-32
07-60
09-22
09-49
cooecececoesocoooooocoooooeccoea
Observer’s
Tnitial.
BIFILAR. BALANCE.
Cor- |Thermo-] Cor- |Thermo-
rected. | meter. || rected. | meter.
Se. Div. 2) Mie. Diy. 2)
551-5| 57-4 || 490-2] 58-6
548-1} 57-9 || 491-0] 59-0
548-6} 58:3 || 486-5] 59-1
550-8] 58-3 || 483-3} 59-1
550-0} 58-3 || 472-5} 58-8
547-9] 58-1 || 468-3] 58-7
545-8| 57-9 || 464-4] 58-5
549-1| 57-7 || 458-1} 58-3
549-9! 57-6 || 450-9| 58-2
538-1] 57-4 || 447-5) 58-1
536-4] 57-3 || 455-2) 58-0
537-2| 57-2 || 459-7| 57-9
535-0| 57-2 || 463-4] 57-7
541-9| 57-1 || 449-8] 57-5
542-6| 57-1 449-5| 57-5
535-4] 57-0 || 447-3] 57-5
536-1] 57-0 || 440-5| 57-5
529-6} 57-1 || 445-3] 57-7
527-2) 57-4 || 442-3] 58-0
528-0} 57-6 || 448-3} 58-3
534-2| 58-0 || 452-0} 58-8
535:0| 58:5 || 456-0) 59-5
539-6] 59-0 || 455-7] 60-0
541-7} 59-6 || 464-1] 60-8
539-3| 60-3 || 483-0] 61-3
546-1} 60-7 || 479-5} 61-5
547-6| 60-8 || 473-1| 61-5
551-3] 60-8 || 464-9] 61-5
548-4] 60-6 || 461-7] 61-0
541-3] 60-3 || 465-4| 60-7
538-4] 60-0 || 455-2) 60-2
545-3| 59-7 || 450-0] 59-7
543-3] 58-9 || 431-6| 58-9
540-2} 58-6 || 429-0} 58-5
542-1} 58-3 || 435-8} 58-3
539-4} 58-0 |} 430-7| 58-0
543:5| 57-7 || 418-1| 57-7
542.7| 57-5 || 428-8) 57-3
543-8} 57-3 || 439-5] 57-0
540-8} 57-1 449-0} 56-8
530-4| 56-9 || 452-8} 56-7
524-5| 56:7 || 450-6| 56-6
§24-5| 56-7 || 454-3) 56-7
528-8] 56-7 || 446-0| 56-8
538-0| 56-7 || 444-9] 57-0
536:9| 56-9 || 446-3] 57-2
536-7| 57-2 || 463-8] 57-8
537-8} 57-8 || 472-8] 58-6
548-0} 58-4 || 477-2} 59-2
547-5| 58-8 || 476.9} 59-5
548:5| 59-0 || 468-8} 59-8
547-4| 59-3 || 468-6] 59-8
545-0} 59-3 || 470-0] 59-8
590-1} 59-3 || 462-1} 59-8
546-5| 59-2 || 453-4] 59-5
545-6! 59-0 || 448-7| 59-2
DECLINATION.
MAG. AND MET. oBs. 1845.
Ditton sss ses pwd sss see mmdddad |
Mteeeqauuk
Gottingen
Mean Time
of Declina-
tion Obs.
SSS) SSSI) (SUSI SSS) SS) SSS SSS SSIS)
Soo coc S'S
DECLINA-
TION.
| 25 09-05
09-47
09-05
07-74
07-47
02-35
03:06
05-25
15-34
17-84
19-12
19-07
16-62
17-76
11-74
10-72
09-59
09-15
06-76
07-71
07-67
07-07
08-50
09-66
07-60
07-99
07-13
06:09
07-24
25
06-83 |
08-82
09-94
14-80
17-02
18-00
16-75
14-73
14-26
10-50
09-76
09-69
10-11
10-40
08-70
07-81
09-05
08-06
07-82
07-74
07-74
07-24
25
06-10
06-16
05-72 ||
02-66 |,
09-73 ||
BIFILAR. BALANCE.
Cor- |Thermo-|| Cor- |Thermo-
rected. | meter. || rected. | meter.
Se. Div. ° Mie. Div. a
542-2| 58-8 451-1] 59-0
542-5) 58-4 451-1| 58-5
541-8] 58-0 451-3) 58-0
542-9| 57-7 || 452-8] 57-5
542-7| 57-4 || 455-6| 57-2
544-4) 57-1 461-4 | 56-9
540-2} 56-9 465:3| 56-5
534-0| 56-7 || 467.4| 56-3
530-3} 56-5 || 464-2) 56-3
532-4| 56-4 || 455-5| 56-3
532-1) 56-4 449-8} 56-5
532-3} 56-6 || 446-3| 57-0
535-1] 57-1 438-5 | 97:9
547-8| 57-7 || 434-7| 58-7
560:6| 58-4 437-2) 59-4
562-0} 59-0 || 466-1) 60-0
552-1} 59-6 || 503-4| 60-7
550-6) 60-2 || 528-4! 61-2
545-6 | 60-7 || 526-7| 61-6
543-2} 61-0 || 501-5) 61-7
547-0| 61-0 | 474-1] 61-5
538-2! 60-7 || 459-3) 61-0
541-2} 60:3 456-4| 60-6
538:4| 60-1 || 453-0} 60-2
534-5| 59-8 454-2} 59-8
535-2| 59-3 || 456-7) 59-0
532-9} 59-1 459-8| 58-8
534-3| 58-7 || 456-9] 58-4
536:5| 58-4 || 464-8} 58-2
534-3 | 58-1 465:6| 57:8
532:0| 57-8 || 469-7| 57-6
524-9| 57-7 || 476-1 | 57-5
525-9| 57-5 || 474-8] 57-3
524-5] 57-3 || 475-4] 57-3
524-7| 57-3 || 477-2) 57-6
528-2} 57-5 || 467-6] 58-0
531-7] 57-8 || 468-7] 58.3
534-1; 58-0 || 470-4] 58-7
533°8| 58-4 471-8] 59.2
535-5! 59.0 || 471-2] 59-7
537-7| 59-4 || 470-6] 60.2
542-7} 59-9 471-6} 60-5
545-4] 60-2 466-9} 60-8
546-5 | 60-5 || 466-0} 61-0
546-3} 60-6 || 462-5} 60-7
539-8 | 60-3 458-8] 60-5
541-9} 60-1 458-6| 60-0
543-9} 59-8 452-5] 59-7
544-0} 59-5 448-7| 59-3
538-0] 59-2 || 451-2) 59-0
537-4| 58-9 || 455-2] 58-5
538-3] 58-5 457-5| 58-0
537-5| 58-0 || 460-0| 57-5
536-5| 57-6 || 463-9} 57-0
535-1| 57-2 || 467-2| 56-5
533-8 | 56-9 468-9| 56-2
Magnet untouched, June 184—Sept. 214.
Observed 3™ after the Declination, s=0-000010.
Observed 2™ after the Declination, s—=0:000140.
BALANCE,
Wesesseseses SSUES eee eee ese Pees ses eeeseseestteeee |
45
Observer’s
Initial.
t+ Extra Observations made.
LE SE LT I SE ER PE ET EES SEES
46 Hour.Ly OBSERVATIONS OF MAGNETOMETERS, AUGUST 27—SEPTEMBER 2, 1845.
Gottingen BIFILAR. BALANCE.
Mean Time || DECLINA-
of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-
tion Obs. rected. rected. | meter.
Gottingen BIFILAR. BALANCE.
Mean Time |} DECLINA-
of Declina- Cor- |Thermo-
tion Obs. rected. | meter.
Observer’s
Initial.
Observer’s
Initial.
2 4 Se. Div. Mie. Div. e
25 07-57 || 528-4 . 469-3] 56-0 |
08-95 || 526-7 . 459-9| 56-2 |
11-39 || 526-8 . 469-1} 56-6
14-28 |) 531-0 : 459.9) 57-6
16-25 | 536-9 : 449-9) 58-9
16-15 || 538-0 : . 60-4
14-40 | 539-1] 60. 9} 62-0 |
12-78} 538-6 : . 63-5 |
12-06 || 543-2 . : 65-0 |
10-65 || 544-8 : : 66-2 |
09-13 || 548-0 . . 66-8 |
09-35 || 553-4 . : 67-1
08-95 || 541-8 . . 67-3
09-89 || 544-9 . y1- 67-3
07-87 || 543-8 . . 67-0 |
03-84 || 540-2 }
eo
oF
Se. Div. 2
540-3} 67-7
548-4| 68-6
544-0} 69-0
543-8} 69-1
534-1} 69-0
540-6} 68-9
537-8 | 68-7
531-4
eoooooce o oF
i)
_
535-4
532-8
525-4
533-4
535:3
531-8
532-3
526-6
521-4
525-4
516-0
529-4
534-5
542-5
548-2
| 049-4
537°3
541-3
550-0
550-0
542-8
539-1
539-3
536-9
oooqcqoo cos ooo ooo cE
05-72 | 542-9
06-73 || 539-8
04-71) 536-9
07-13 || 538-2
06-76 || 539-3
08.34 || 540-6
06-74 || 540-6
09-20 || 537-0
17-73
16-65
15-47 || 539-0
16-12
18-13
21-95
22:98
14-87
12.95
11-51
51-17
01-78 || 548-1
04-08 |} 531-9
45-87 || 508-5
00-99 |) 538-7
09-96 || 541-7
—
eoooocscooocqcocqcocqcoeooqooqooqcooqoccd:dcS
536-1
532-9
525-3
540-3
528-8
533-3
532-6
+
—
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
02-08 || 531-1
57-75 || 529-5
08-45 |) 511-0
10-58 || 520-5
04-10 |) 534-1
08-28 || 535-5
11-71 || 526-5
15-11 || 509-9
15-94 || 506-4
13-43 || 521-4
12-38 || 528-9
16-65 || 523-4
16-41 || 527-1
16-93 || 536-6 |
17-33 || 525-9| 65-7 |
09-89 || 539-7' 66-7
513-3
i)
529-6
529-5
524-9
16-32 || 542-0
08-82 || 537-1
10-60 || 535-5
08-19 || 544-6
05-06 |) 538-0
00-47 |, 536-1
04-17 || 541-6
05-43 || 532-4
09-46
>
mesma dddos Settee ses eews seo midge do mh ohhh |
SSrer mee tee ee eee See tah Ron nin tte gaduwavan
Sooo ooo © ooc.0 oC 6 oo Oo ooo oS oS
ecsccocooococoooooeocse
a G
WF COONOAUFWNrR OC?’
DECLINATION. Magnet untouched, June 184—Sept. 214.
BIFILAR. Observed 2™ after the Declination, s=0:000140. BALANCE. Observed 3™ after the Declination, <=0°000010.
+ Extra Observations made.
Aug. 294 105304 105. Term-Day Observations made.
uN
~J
HourRLy OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 2—8, 1845,
Gottingen BIFILAR. | BALANCE. 7 _ | Gottingen BIFILAR. BALANCE. ie fae
Mean Time || Decuina- 7 -& | Mean Time || Decrina- poe
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| ‘3 | of Declina- TION. Cor- |Thermo-| Cor- |Thermo-|| 3 °2
tion Obs. rected. | meter. |] rected. | meter. ||S'~] tion Obs. rected. | meter. || rected. | meter. || 5'~
Sean. mM. ree e Se. Div. S Mic. Div. CH 7 Tenis ce ‘| Se. Div. e Mic. Div. G
213 O || 25 07-20|| 534-0} 60-7 || 405-7) 59-5 || W 4 21 0O || 25 08-03 || 521-8] 55-3 || 490-1} 55-3 || W }
és 00) 04-07 || 533-4] 60-0 || 411-6] 58-7 || W 22; 0 10-74 | 518-6} 55-3 || 484-1} 55-6 || H
15 0O 11-72 || 534-3) 59-3 || 433-1| 57-9 || W 23 0 13-67 || 519-3] 55-5 || 472-9] 56-0 || H
16 0 04-32 || 529-7! 58-6 || 443-8} 57-0 || W 5 00 10 | 16-82 || 533-4] 85-8 || 469-0] 56-4 || H
17 0 06:06 || 536-1} 57-8 || 461-6] 56-1 || W aera [ey 80) 18-54 || 534-2} 56-1 | 474-1] 56-8 || H
18 0 05-23 || 537-2] 57-2 || 473-3] 55-4 || W 2 0 17-80 | 541-2} 56-6 || 482-5] 57-4 || H |
eo) 05-32 || 531-2] 56-5 || 490-0) 54-8 || B 3 0 14-62 || 543-9} 57-2 || 490-6| 58-0 || H
20r 0 08-05 || 527-9] 55-8 || 491-6] 54-2 | B 4 0 12-15 || 547-7| 57-8 || 494-7| 58-6 || H
21 0 07-38 || 521-0] 55-2 || 497-1} 54-0 || H 5 (0 07-81 || 541-7} 58-3 || 500-4} 59.2 || H
22 0 09-29 || 519-3] 55-0 || 488-9} 53-8 || H 6 0 06-32 || 543-0} 58-8 || 502-1} 59-5 B
23 0 15-24 |] 515-8; 54-8 || 492-4} 54.2 || H i 09-19 || 543-9} 59-0 || 485-5} 59-7 || H
3 0 0 15-91 || 523-0] 54-9 || 496-4] 54-8 || H 8 0 08-48 || 543-2] 59-2 || 484-4) 59-5 || H
9) 19-84 | 530-8} 55-2 || 502-6] 55-5 || H 9 O 07-78 || 543-7| 59-0 || 466-6] 59-3 || H
Pa) 20-11 |) 538-1} 55-9 || 512-4} 56-4 |) B 10 O 07-76 || 537-3] 58-8 || 471-7| 59-0 | H
S10 21-19|| 550-6} 56-7 || 530-7] 57-4 || B LI 0 07-67 || 542-6] 58-6 || 460-4] 58-4 || W
4 ot 10-47 || 542-2} 57-6 || 584-0} 58-4 B 12 0 02-20 || 534-3] 58-2 |) 460-5} 57-9 || W
5 0 14-98 || 549-7] 58-4 || 573-7) 59-2 | B
6 0 12-49 || 540-9] 59-0 || 544-5] 59-8 | W 13. 0 || 25 07-78] 535-0} 57-7 || 462-3) 57-3 || W }
7) 12-31 || 546-9] 59-4 || 503-7] 60-0 || W 14 0 08-82 |} 535-8} 57-1 || 464-0] 56-5 || W |
8 0 10-72 || 539-9] 59-6 || 502-0} 59-9 || W 15 0 09-26 || 536-0} 56-5 || 471-8| 55-8 || W |
9 ot 01-45 || 534-0} 59-5 |) 503-3) 59-8 || W 16 0 09-02 || 534-8) 55-9 || 473-8] 55-0 || W
LOW “Ot 04-51 || 541-3) 59-4 || 485-2) 59-7 || W lias) 08-06 || 533-9} 55-3 || 478-1] 54-3 || W
1 a XO) 08-43 || 539-3] 59-1 || 474-3] 59-3 || H 1810 07-22 || 532-7| 54-7 || 482-4) 53-7 || W
12 0 09-66 || 539-3| 58-8 || 469-9} 58-9 || H 19 O 06-23 || 529-6} 54-1 || 489-6} 53-0 B
20 0 07-11 || 524-7} 53-7 || 491-7| 52-5 B
3 0 || 25 08-86]] 538-7| 58-4 || 467-1} 58-57) H 21 0 07-57 || 524-1) 53-2 || 484-6) 52-2 || H
14 0 07-40 || 538-8} 58-0 || 454-3} 58-2 || H 22 0 10-65 || 520-3] 52-9 || 484-5) 52-2 || H
15 0 09-57 || 537-0] 57-8 || 463-4] 57-8 || H 23 0 14-20 || 518-3} 52-7 || 480-7) 52-2 || H f
16 0 08-95 || 536:0| 57-5 || 469-6) 57-5 || H @ WO) 17-71 || 526-8} 52-7 || 479-3) 52-5 B
17 0 07-47 || 582-3} 57-3 || 474.3] 57-1 || H 1 O 18-40 || 528-8] 52-8 || 477-2) 53-0 || H |
key 0) 10-67 || 526-2} 57-0 || 476-5| 56-8 | H 2 0 19-14 |) 543-0} 53-2 | 485-1) 53-7 B
ey {0 12-31 || 528-1] 56-8 || 468-8} 56-5 || W 3.0 15-51 || 541-6} 53-8 |) 500-7) 54-5 B
20 O 11-49 || 526-6] 56-5 || 469-1) 56.2 || W 4 0 12-42 || 540-0| 54-6 || 505-8| 55-4 B
et 0 09-49 || 524-0) 56-3 || 467-5| 56-0 B 5 0 10-45 || 546-7| 55-3 || 504-0} 56-2 || B
22 0 12-53 || 512-2] 56-2 || 470-1} 56-2 || W 6 0 09-62 || 548-0} 55-9 || 501-3} 56-8 || W
23 0 16-41 | 500-9) 56-3 || 484-1] 56-4 || W i 05-49 || 543-9] 56-4 || 500-0! 57-0 || W |
Or 0 18-67 || 520-6} 56-4 || 483-3] 56-8 || W 8 0 07-10 || 544-7 | 56-6 || 495-7} 57-2 || W
ie 20 18-50 || 530-6] 56-7 || 483-1] 57-3 || W go 0 09-96 || 542-8) 56-6 || 486-7] 57-1 Ww
2 0 17-26 || 539-0} 57-0 || 496-6} 57-6 || W 10 O 09-46 || 541-1} 56-6 || 480-0} 57-0 || W
3 0 14-78 || 543-3} 57-3 || 513-5) 57-9 || W ES (0) 09-39 || 542-9} 56-3 || 473-5] 56-6 || H
4 0 06-93 || 564-4) 57-5 || 529-3) 58-1 || W 12 0 09-22 || 542-4] 56-0 || 470-0} 56-2 || H
5 «(OO 11-55 |) 535-7} 57-7 || 539-0} 58-3 || W
6; 0 09-44 || 536-8} 57-9 || 526-9] 58-4 || H 7h Ue ot 25 22-00} 526-6] 54-9 || 456-3] 54.7 B
0 11-03 || 540-8} 58-0 || 502-9) 58-4 || H 14 0 11-64 || 533-8] 54-5 || 396-7| 54-5 B
8 0 10-72 || 541-4] 57-8 || 488-1} 58-2 || H Seon 07-47 || 530-4] 54-1 || 400-7] 54-0 B
a0 10-11 |) 543-2) 57-7 || 483-0] 58-0 || H 16 0 | 02-28 || 529-7} 53-7 || 412-4] 53.5 B
10 0 07-99 || 540-5) 57-6 || 481-7] 57-8 | H V7 00),| 03-61 || 530-6} 53-3 || 415-5] 53-5 B
Le "0 03-47 || 542-2) 57-4 | 472-2) 57-5 || B 18 0O 01-31 || 539-0} 52-9 | 441-3] 52-5 B
12, 0 04-78 || 536-4] 57-2 || 456.2} 57-2 || B 19 O 04-86 || 534-9} 52-6 || 459-8} 52-1 H
| 20 0 05-02 || 527-1| 52-3 | 471-8] 51.7 || H
13 0 || 25 13-39}! 536-8} 57-0 || 424-6| 57-0 | B Zn) 11-57 |) 510-8| 52-1 | 485-8] 51-7 || W
14 0 07-71 || 538-2] 56-8 | 441-0] 56-7 || B 2280) | 14-92 || 517-4) 52-0 | 480-8] 51-7 || H
15 0 06-32 || 542-5] 56-6 | 456-6| 56-5 B 23)-40 || 15-64 || 518-4] 52-0 | 479.6] 52.2 || H
HOO) 11-71 || 539-4} 56-3 | 454-1] 56-2 || B SO) Om 17-89 || 521-5] 52-3 || 473-1] 53-0 || H
ti; 0 08-12 || 534-7] 56-1 || 466-9| 56-0 || B i @ 18-87 || 522-9] 52-9 || 483-0] 54-0 || H
18 0 06-71 || 534-3) 55-9 481-0} 55:7 B 20) 17-04 || 531-7| 53-7 || 496-8} 55-0 || H
19° 0 06-86 || 534-3) 55-7 | 482-7) 55-5 || H 33 0) 17-33 || 537-9] 54-5 | 502-7| 55-8 || H
20 O 07-07 || 527-4| 55-5 | 489-0] 55-4 || H 4 0 16-35) 535-8! 55-5 || 504-4! 56-7 || H
DECLINATION. Magnet untouched, June 184—Sept. 214.
BirtLar. Observed 2™ after the Declination, s—0:000140. BALANCE. Observed 3™ after the Declination, k=0-000010.
a + Extra Observations made.
48
Gottingen
Mean Time
of Declina-
tion Obs.
|
coscooooos
eoococoeocococes@coocooocooocoecs
—_
Seeeooooocoqcoqoqcoooqo a © oo o.oo
HovurRLY OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 8—12, 1845.
DECLINA-
TION.
25
25
=
BIFILAR. BALANCE. % _| Gottingen BIFILaR. BALANCE. ||%
z-& | Mean Time || Deciina- Pe
Cor- |Thermo-|| Cor- /Thermo-|| $°¢] of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°s
rected. | meter. || rected. | meter. || S5'~ | tion Obs. rected. | meter. || rected.| meter. || 6
Se. Div. 2 Mie. Div. 5 d. m. Se 7 Se. Div. . Mie. Diy. 2
546-8) 56-4 || 501-9} 57-7 | H | 10 13 0 || 25 09-15]; 543-1} 56-6 || 457-8] 56-0 || B J
542-9| 57-4 || 506-6| 58-5 || W 14 0 09-08 || 546-1| 56-3 | 448-7) 55-7 || B
549-4| 58-0 || 493-0} 59-0 || H 15 0 08-12 || 539-6| 55-9 || 458-3] 55-4 || B
545-6| 58-4 |) 481-9} 59-1 || B Gy) 06-37 || 540-6| 55-6 || 452-6| 55-1 || B
545-9| 58-5 || 476-1} 59-1 || B 17 a0 09-96 || 536-1| 55-3 || 457-1) 54-8 || B
544-6] 58-4 || 469-8/ 59-0 | B LS ano 07-52 | 540-5| 55-0 || 454-2) 54-5 | B
| §43-9| 58-2 || 463-5| 58-6 || W 19 0 07-87 || 541-3| 54-8 || 456-0| 54-2 | H
544-9} 58-0 || 461-1} 58-4 || W 20 0 06-56 || 534-3] 54-5 || 458-1} 54-0 || H
21 0 07-67 || 531-1} 54-3 | 459-3) 54-0 |) W
541-7] 57-8 || 459-9] 58-2 | W 22 0 08-99 || 526-5] 54-1 || 462-5| 54-0 || H
543-1| 57-6 || 411-9} 58-0 || W 23 0 11-44] 524.7| 54-1 | 460-9| 54-0 || H
539-5| 57-4 || 429-2! 57-8 || WJ] 11 0 O 15-11-| 524-1] 54-0 | 455-0} 54-0 || H
539-3| 57-3 || 440-3] 57-6 || W i) 19-44 || 530-5] 54-1 | 452-2] 54-4 || H
541-0} 57-1 || 448-7| 57-4 || W 2 0 17-39 || 531-2] 54-4 || 452-6] 54-8 || H
540-8} 57-0 || 454-2) 57-2 || W 3 (0 16-53 || 535-3| 54-8 || 476-2] 55-4 || H
541-8} 56-9 || 459-5; 57-0 || B 4 0 11-51 || 537-8| 55-3 || 492-9] 56-0 || H
535-8| 56-8 || 462-2} 57-0 || B 5 0 10-70 || 539-7} 55-8 || 490-3] 56-5 | H
530-2} 56-8 || 460-1; 57-2 || H 6 0 08-82 || 543-9] 56-4 || 476-3) 56-8 | B
520-3} 56-9 || 460-8} 57-3 || H i 20 08-90 || 547-5| 56-8 || 466-0] 57-0 || B
521-8] 57-0 || 460-1} 57-5 || B SG 08-36 || 548-9] 56-9 || 468-4] 57-0 || B
513-5} 57-3 || 461-2} 58-0 || H ao 03-02} 544-6] 56-8 | 474-4] 56-8 || B
521-3] 57-8 || 465-8} 58-5 || B 10 0 08-32 || 543-2] 56-7 || 465-8} 56-6 || B
527-6| 58-3 || 470-4} 59-0 || B Une) 07-81 || 546-1} 56-5 || 456-6} 56-4 || W
534-7| 58-8 || 472-1] 59-5 || B 12 0 08-65 || 544-1] 56-3 || 447-8] 56-2 || W
539-9| 59-1 || 473-0| 60-0 || B
543-8} 59-6 || 470-3) 60-4 || W 13 0 | 25 09-29] 541-5] 56-1 || 446-0} 56-0 || W
546-9| 59-8 || 468-2} 60-6 || W 14 40 09-00 || 543-0) 55-9 || 447-4] 55-8 || W
540-7| 60-0 || 474-8} 60-7 || W 15 0 08-80 || 543-3| 55-7 || 445-5] 55-5 || W
541-6] 60-1 || 476-1} 60-8 || W 16 0 08-95 || 545-1] 55-4 || 437-2) 55-3 |) W
541-6} 60-2 || 466-5} 60-8 || W 17 40 09-46 || 547-1} 55-2 || 418-1} 55-0 || W
544-5] 60-3 || 456-6} 60-8 || W 18 0 07-24 || 547-4} 55-0 || 406-3] 54-8 || W
545-3} 60-2 || 447-1] 60-7 | H LOO 08-05 || 534:5| 54-8 || 418-7} 54-7 || B
542-2| 60-1 || 446-4; 60-5 || H 20 O 08-66 || 535-5| 54-7 || 434-2] 54-5 || B
21 0 07-24|| 531-6] 54-5 || 432-1] 54.4 || H
543-2) 60-0 || 438-5] 60-3 || H 22 0 11-66 |) 525-5] 54-5 || 453-7} 54-7 || H
046-0} 59-8 || 412-3] 60-1 || H 23 0 14-43 || 518-9] 54-7 || 458-5] 55-1 || H
537-1| 59-7 || 425-6} 59-8 || H } 12 0 O 19-26 || 524-5} 55-0 || 460-0] 55-7 || H
540-3] 59-5 || 431-3] 59-5 || H LO 19-19 || 531-7] 55-6 || 445-3) 56-3 || B
541-5} 59-2 || 438-9] 59-4 || H 20 19-28 || 541-3) 56-2 | 458-9} 57-2 || B
540-4} 59-0 || 444-1] 59-1 || H 3 0 17-20 || 542-0] 57-2 || 472-0} 58-4 || H
541-0) 58-8 || 450-3} 58-8 || W 4 0 12-16 || 533-3] 58-4 || 484-4] 59-7 | H
533-7| 58-6 || 455-0) 58-3 || W 5 0 11-27}) 544-8] 59-5 || 499-9} 60-8 || H
|| 524-2} 58-3 || 460-8} 58-0 || B 6 0 11-27 || 536-7] 60-4 || 498-6} 61-5 || W
523-4) 58-0 || 460-3) 57-8 | W ft 0 07-96 || 543-8] 60-9 || 487-9] 61-5 || W
| 527-3| 57-9 || 455-7| 57-6 || W 890 05-92 || 542-8} 60-8 || 489-0} 61-3 || W
| 627-4] 57-8 | 455-2] 57-6 || W SO 09-05 || 539-2} 60-7. | 476-6| 61-1 | W
534-:5| 57-7 || 452-8] 57-6 || W 10 0 07-71 || 540-3] 60-5 || 469-1] 60-8 || W
| 540-1| 57-6 || 456-7] 57-6 | W 1) 08-65 || 541-2) 60-0 | 463-7} 60-3 || H
545-8) 57-6 || 460-6; 57-6 || W 12 0 08-97 || 541-5] 59-7 || 455-6) 59-7 || H
537-5| 57-7 || 461-9} 57-8 || W
541-8| 57-8 || 462-5] 58-0 || W 13 0 | 25 09-66)) 552-8} 59-2 || 435-7) 59-1 || H
543-6| 57-9 || 458-5| 58-2 || H 14 0 06-09 || 543-2] 58-7 | 419-2) 58-5 |) H
544-0] 58-0 | 458-6) 58-2 || H 15 0 06-06 || 534-5] 58.2 | 429-5) 58-0 || H |
544-8} 57-9 || 453-2) 58-0 || H 16. 0 06-41 || 535-5} 57-7 | 439-6| 57-3 || H |
544-1] 57-7 || 448-1] 57-5 || H ge 05-99 || 537-6) 57-2 | 441-2} 56-7 | H
543-6| 57-4 || 452-8) 57-0 || H Iss @ 06-32 |) 538-8) 56-8 ] 445-9} 56-2 || H
| 542-1] 57-2 || 457-4| 56-7 || B 19.50 08-26 || 536-0} 56-4 | 452-0) 55-8 || W
| §42-1' 56-9 || 457-6! 56-4 | B 2000 06-86 || 528-5! 56-0 | 456-1! 55-3" W
BIFILAR. Observed 2™ after the
DECLINATION. Magnet untouched, June 184—Sept. 214.
Declination, s—=0:000140. BALANCE. Observed 3™ after the Declination, <=0-000010.
Sept. 10414". Declination magnet oscillating through 13’.
HovurLy OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 12—18, 1845.
TELEET UL ELLLLLLELE EL eee er eee
Observer’s
Initial.
=
J
Gottingen
Mean Time
of Declina-
tion Obs.
ooocoocoo os
See 5S) (SSS SS) (SS) (SENS) SY OS) SSS SS KES)
et
SWOT SS SO OS (OS SO SO Ore SS Sore oro
I
2
3
4.
9)
6
a
8
9
10
11
12
|
|
|
BALANCE.
BIFILAR.
| DECLINA-
TION. Cor- |Thermo-|| Cor- |Thermo-|
rected. | meter. || rected. | meter.
3 te Se. Diy. ° Mie. Diy. e
25 10-38] 539-7} 55-9 466-:0| 57-0
09:10 || 545:0| 56-4 || 459-2) 57-5
09-49 || 547-0| 56-7 || 456-6] 57-5
09-08 || 549-4] 56-8 449-6} 57-5
08-46 || 547-5| 56-8 451-5| 57-5
04-12 || 538-8] 56-6 || 460-5} 57-2
08-08 || 541-5} 56-4 || 452-3} 56-8
07-71)| 541-7| 56-1 || 447-6] 56-5
25 07-07|| 541-1} 55-8 || 444-7] 56-1
07:55 || 538-0] 55-6 448-0} 55-8
6:24 || 539-1 55:3 447-0} 55-5
06-41 || 539-0} 55-0 | 446-5) 55-1
09-39 || 540-1] 54-8 || 447-5| 54.8
07-42 || 542-4] 54.5 446-1} 54-5
07-67 || 540-3] 54.2 451-4] 54:3
07-51 || 535-0} 54-0 || 453-9) 54-1
09-00 || 529-2] 53.9 457-3| 54-0
11-91 || 523-5] 53.8 || 453-7| 54-0
13-49 || 523-6} 53-8 |] 452-1] 54.2
16-93 || 529-3] 53-8 || 439-8] 54.5
19-10 }} 531-5] 54-0 || 446-3] 54.7
18-34 || 534-0] 54-2 || 454-9] 55-0
15:99 || 540-8} 54-3 || 459-7} 55-2
13-05 || 545-2} 54.7 || 470-7) 55:5
10-31 || 543-0} 55-0 || 479-4) 55-7
10:09 || 543-8} 55.3 480-8} 56-0
10-14}} 545-8} 55-6 || 473-8] 56-3
11-17 || 545-7| 55-9 473-7| 56-5
10-13 || 543-4] 56-0 || 472-3| 56-7
10-80 || 555-3] 56-2 || 456-6} 56-8
25 01:45 || 535-0} 56-4 || 447-2] 56-8
24 49-10]! 530-4| 56-5 || 410-8| 57-0
24 56-16]! 506-5} 56-6 || 339-6| 57-3
25 00-40 || 525-0) 56-8 239-0] 57-5
08-95 || 533-2] 57-0 | 316-1] 57-6
06:50 || 538-7] 57-0 || 400-0} 57-5
06-81 || 538-9| 56-8 424-3] 57-2
04-28 || 545-4! 56-6 || 427-9] 57-0
06-70 || 540-6| 56-4 |} 424.3] 56-7
13-79 || 517-8| 56-2 || 425-9] 56-4
23-38 || 523-0] 56-1 |} 402-8] 56-4
17-31 || 524-0! 56-0 || 407-9| 56-5
13-16 || 530-2) 56-1 416-9| 56-7
14-13 || 529-7] 56.3 422.0] 57-2
17-96 || 539-2} 56-8 || 426-4] 57-5
15-51 || 5386-1} 57-0 | 434-5) 57-7
15-20 || 528-0} 57.2 || 449-7} 58.0
12:78 || 531-6} 57-5 || 454-9} 58.3
10-75 || 538-3] 57-8 || 460-5!) 58-5
09-62 || 541-9} 58-0 || 460-9} 58-7
08-97 || 542-3} 58-1 456:2| 58-7
09-62 || 543-0} 58-1 450-0) 58-6
09-53 042-0} 58-0 || 445-7] 58-5
08-73 || 540-4) 57-9 || 445-3] 58-3
07-67 || 540-8} 57-7 | 442.4| 58-0
05-72 || 540-0 | 57-4 | 431-2) 57-7 |
49
Observer's {
Tnitial.
MUSSSSeSsnnu tnt tt eens see seses Serre WOOO eee See eee eS
Gottingen BIFILAR. BALANCE.
Mean Time || DECLIN«- | |
of Declina- TION. Cor- |Thermo- as aed
tion Obs. | rected. | meter. || rected. | meter.
d. ss. || G é Se. Div. e Mic. Div. C
12 21 3 || 25 12-78|| 523-7| 55-7 || 461-6] 55-0
22) 0 09-77 || 526-4] 55-4 | 458-1] 54-8
23: 0 12-95 || 526-5| 55-1 || 454-7] 54-8
te 0 0 || 15-98 || 526-8] 55-0 || 453-3) 55-0
i 20 18-47 || 534-2) 55-2 || 454-2) 55-4
2, 20 17-26|| 533-5] 55-5 || 461-8| 55-8 |
33. @ 13-52 |) 541-1) 55-7 || 469-0} 56.2 |
4 0 11-14|| 544:7| 56-1 || 467-0) 56-5
by (0) 09-49 || 549-7| 56-4 | 468-6} 56-9
6 0 08-80 || 537-8| 56-7 || 471-2) 57-2
7 #O 09:73 || 545-7| 57-0 || 460-8} 57-3
8750 09-05 || 553-9! 57-0 || 462-4) 57-8
9 0 03-57 || 531-8} 57-0 | 465-1] 57-5
10 0O 08-88 || 540-3} 57-1 || 458-1] 57-5
Lie SS 08-93 || 540-2) 57-1 || 460-0! 57-5
12 0 09-02 || 539-9! 57-0 || 458-6] 57-3
1413 O || 25 09-89}} 535-2} 57-0 || 450-5] 56-2
14 0 08-85 || 535-9| 56-4 || 444-3) 55-5
oe 10 08:03 || 536-3) 55-7 || 450-6; 54-8
16 0 07:94 || 535-2] 55-0 || 455-5) 54-0
1) 07:94 || 535-3} 54-3 || 455-1) 53-0
Se sO 07-64 || 536-4| 53-6 || 455-0} 52-2
19° O 07-31 || 536-0} 52-9 || 461-0) 51-3
20 O 07-65 || 532-8} 52-2 || 468-6! 50-5
21 <0 08-14|| 529-8| 51-7 || 474-8] 50-2
PRAT 09-82 || 526-0) 51-2 || 476-2} 50-2
Zar (0 11-89 |) 522-9] 51-0 || 468-5] 50-4
> 0: 0 13-05 || 529-8| 51-2 || 469-6} 51-3
1 0 14-89 || 535-4} 51-8 || 474-1] 52-5
2 0 14-20 |) 539-0} 52-6 || 478-8) 53-5
a0 12-04 || 539-9) 53-3 || 481-6| 54-4
4 0 10-06 || 541-0} 54-0 || 480-6] 55.2
5y (0) 09-06 || 542-7] 54-7 || 474-4] 55-7
6 0 09-12 || 543-6} 55-3 || 467-7| 56-2
20 09-56 || 545-7| 55-7 || 463-5) 56-4
8 0 09-57 || 544-6] 55-8 || 459-6) 56-4
9 0 09-42 || 542-5] 55-7 || 457-3) 56-2
10 0O 09-22 || 542-4| 55-6 || 455-9} 56-0
Li 0 09-00 || 542-9} 55-3 || 454-5) 55-7
2) 0 08-58 || 543-3] 55-0 || 453-8} 55.4
13 0 || 25 08-43 |) 542.2) 54-7 || 453-0) 55-0
14 0 08-31 || 542-2] 54.4 || 452-8) 54-6
15 0 09-66 || 540-2) 54-0 || 457-0} 54-2
16 0 07-27 || 542-1| 53-7 || 451-0| 53-6
0 08-01 | 537-9} 53-3 || 453-2| 53-0
18 0 08-82 || 540-4/ 53-0 || 452-1] 52-5
19 0O 07-99 || 538-4] 52-6 || 458-1| 52-1
20 O 08-23 || 534-6| 52-3 || 462-7| 51-7
Bile 0) 09-26 || 530-3) 52-0 || 465-9| 51-5
220 11-34 || 526-6) 51-8 || 467-0) 51-4
23 0 13-34 || 528-7) 51-7 || 461-1] 51-9
16 0 0 15-96] 532-4| 52-1 || 455-1} 52-8
0) 18-01 || 537-9} 52-7 || 450-3} 53-7
2 0 16-38 || 541-6| 53-4 || 457-8| 54-6
a0) | 14-26 || 540-6} 54-3 || 468-8} 55-5
4 0 12-28 | 536-2! 55-2 || 469-9! 56-4
DECLINATION.
Brrizar. Observed 2™ after the Declination, k=0-000140.
BALANCE.
Magnet untouched, June 184—Sept. 214.
Observed 3" after the Declination, k=0-000010.
+ Extra Observations made.
Sept. 144 18h,
MAG. AND MET. oss. 1845.
A very minute insect seen on the north cross-plate of the balance magnet.
50 HovurLy OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 18—24, 1845.
Gottingen BIFILAR. BALANCE. | Gottingen BIFIvar. BALANCE, % F
Mean Time || DrcuiNna- > .2]| Mean Time || DecuiNa- z 3
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-| 2°E } of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°2
tion Obs. rected. | meter. || rected. | meter. |5'~] tion Obs. rected. | meter. || rected. | meter. ||S~
d. he a 5 f Sc. Div. Z Mic. Diy. 2, ad he “my ss! ‘ Se. Div. o Mie. Diy. 4
18 13 0 |] 25 05-99|| 534-6} 57-2 || 428-0] 57-5 || H | 21 21 O || 25 08-31|| 527-8] 51-8 || 456-6] 50-7 || B
14 0 09-51 || 529-0) 57-0 || 430-7| 57-2 | H 22) 0 09-05 || 527-5] 51-4 || 450-4} 50-5 || W
15 0 10-38 || 534-6! 56-8 || 406-3] 56-8 || H 23 «0 11-91 || 523-7| 51-2 || 452-0} 50-5 || W
16 0 09-73 || 539-5| 56-5 || 397-0) 56-5 | H | 22 0 O 14-46 || 528:0| 51-2 || 450-6] 50-7 || W
i710 09-33 || 528-2} 56-3 || 385-2) 56-2 | H He) 17-61 || 532-4] 51-2 || 444-1] 51-0 |} W
18 0 06-56 || 545-4] 56-0 || 386-8} 55-8 || H 2) 0 17-17 || 537-1] 51-3 || 451-1] 51-2 |) W
19 0 11-68 || 532-0} 55-8 || 400-0} 55-5 || W 3.420 15-24 || 541-6} 51-4 || 457-7] 51-5 || W
20 O 12-80 || 526-2] 55-5 || 415-5] 55-2 || W 4 0} 13-44 |) 542-2] 51-6 || 458-9] 51-7 || W
210 10-97 || 534-1] 55-1 || 405-4| 54-8 | B on 0 11-86 || 543-3] 51-7 || 459-3] 51-8 || W
22) 0 12-75 || 525-2| 54-8 || 419-2) 54-5 || W 6 0 10-87 || 544-0} 51-7 || 456-7| 51-8 |} H
23 0 14-48 || 522-2) 54-7 || 421-4) 54-4 || W Wao 11-24} 544-7| 51-7 || 453-6] 51-6 || H
HD 0) (0 17-09 | 525-1| 54-6 || 4296-5] 54-7 || W 8 0 10-87 || 545-7] 51-5 |) 448-6] 51-3 |] H
it (0) 16-46 || 530-4| 54-7 || 432-7] 55-1 || W 9 70 10-74 || 544-4] 51-3 || 448-3} 51-0 || H
270 17-93 || 537-8} 55-0 || 443-2] 55-6 || W 10) “0 08-99 || 542-6} 50-9 || 447-9| 50-5 || H
3. 0 16-39 || 534-4] 55-6 || 463-5] 56-3 || W Lio 09-96 | 541-8] 50-5 || 449-5} 49.8 B
4 0 13-83 || 538-5] 56-1 || 480-5] 56-7 || W 12; “0 10-14 || 541-7] 50-0 || 449-5} 49.2 || B
Sv (0) 12-83 || 541-1] 56-6 || 486-9] 57-3 || W
6) 50 10-16 || 545-1] 57-0 || 475-5) 57-6 || H 13 O || 25 10-06 || 532-1] 49-5 || 451-2] 48-5 || B
“¢ @ 09-93 || 545-5| 57-2 || 473-5| 57-3 || H 14 0 09-60 || 540-6} 48-9 || 453-5) 47-8 || B
8 0 09-74 || 540-0] 57-1 || 480-2| 57-2 || H 15 0 09-42 || 540-3] 48-4 || 455-8] 47-2 || B
9 Of] 25 07-44|| 528-4} 57-0 || 475-0} 57-0 | H 16 0 09-32 || 540-6] 47-9 || 456-2| 46-5 B
10 Of} 24 59-09}| 538-3} 56-8 | 429-6) 56-8 H Wr a0) 09-53 || 541-6] 47-3 || 457-8| 45-9 || B
11 O | 25 05-77 || 525-3] 56-6 || 433-8] 56-5 | B 18; 6 09-22 || 542-3] 46-7 || 459-0] 45.2 || B
We 10) 07-67 || 535-4| 56-3 || 431-6] 56-0 | B 19 0 08-82 || 540-9] 46-1 || 465-8] 44-7 || H
20 O 07-87 || 536- 45-5 || 475-4] 44.2 || H
13 0 |) 25 09-17 || 536-1] 55-9 || 440-3} 55-5 || B 2) 10 07-47 || 531-1] 45-0 || 475-8| 43-8 || W
14 0 09-08 || 535-8] 55-4 || 446-3] 54-8 || B yr) 07-76 || 526-0} 44-7 || 470-2| 44-0 || H
15 0 09-13 || 535-1] 54-8 || 450-6} 54-0 || B 23000 09-77 525-9| 44-7 || 464-7] 44.2 || H
16 0 08-25 || 536-5] 54-1 || 450-3} 53-2 | B [23 0 O 12-67 || 528-7| 44-8 || 458-0] 44.8 || H
We) (0) 06-46 || 534-6] 53-5 || 451-8} 52-3 || B orl} 15-44 |} 532-6] 45-0 || 455-0] 45-4 || H
18 0 07-27 || 540-1] 52-9 || 450-3] 51-5 || B 2,20 16-55 | 537-5] 45-5 || 456-6] 46-2 || H
We) 11-27 || 539-7] 52-2 || 451-7] 50-8 || H a 0" 15-24 | 540-4] 46-1 || 462-2] 47-0 || H
20) 40 08-79 || 524-6} 51-7 || 461-5] 50-3 || H 4 0} 13-84 | 543-1] 46-9 || 464-5) 47-5 || H
21 O 11-59 || 521-5| 51-3 |) 463-7] 50-0 || W a7 0 12.45 546-0] 47-6 || 464-0} 48-3 || H
22 0 08-99 || 523-9} 50-9 || 465-9| 50-0 || H 6 0 | 11-39 || 547-2} 48-2 || 460-7} 48-9 || B
23 0 10-40 || 521-2} 50-9 || 469-0] 50-3 || W Tao” 11-17 || 549-7] 48-7 || 458-7] 49.1 B
200) 50 13-52|| 521-3} 51-0 || 463-9] 51-4 | H 8 0 | 10:74 || 548-4| 48-9 || 455-8! 49-2 || B
0 14-91 || 524-4] 51-6 || 487-7) 52-2 | H 9) 40) 10-53 || 548-7] 48-8 || 452-1} 49.0 || B
2 0 15-07 || 530-2} 52-2 || 446-2] 52-8 || H 10} 3.0 10-87 || 546-9} 48-5 || 447-2] 48-6 || B
5} 0) 14-67 || 534-5] 52-7 || 455-8] 53-7 || H 11° 60 10-65 || 546-3] 48-2 || 444-5] 48-2 || W
4 0 13-25 || 535-1] 53-3 || 469-2) 54-5 || H 12) 10 08-95 || 551-9] 47-8 || 436-1] 47-6 || W
0) W) 10-70 || 536-9| 53-7 || 476-4| 54-7 || H
6 0 10-47 || 542-3} 53-9 || 463-4] 54-8 || B 13 O || 25 09-19} 550-2} 47-4 || 439-6] 47-1 || W
Tf (0) 10-04 || 545-2} 54-0 || 451-8) 54-7 || B 14 0 08-83 | 549-6] 47-0 | 440-3} 46-5 || W
8 0 09-82 || 543-4) 53-9 || 449-5] 54-5 || B 15) 0 08-26 || 546-0] 46-5 || 443-0) 45-9 || W
8) 09-13 || 545-1] 53-9 || 451-6] 54-5 || B 16 0 06-59 || 543-0} 46-0 || 443-1) 45-3 || W
10 OF 04-22 || 540-0} 53-9 || 457-9| 54-6 || B ee 0) 09-02 || 546-6} 45-5 || 437-5| 44-7 || W
it (0) 01:78 || 527-8| 53-9 || 443-3] 54-7 || W 18 0 05-13 || 546-9] 45-0 || 417-0| 44-2 || W
12) 0 09-39 || 533-8} 54-0 || 436-1] 54-7 | W 19 0 05-23 | 546-8] 44-5 || 421-7| 43-5 B
| 20 O 06-27 || 541-4} 44-0 || 427-9| 43-0 || B
21 13 O || 25 08-66]| 539-1] 55-0 || 431-5) 55-2 || H Ze PO 07-47 || 541-6] 43-7 || 440-2| 42-9 || H
14 0 11-71 || 537-9| 54-7 || 433-6] 54-7 || H 22) 70 09-05 || 526-1] 43-5 || 447-4| 43-2 || H
Ney 0) 08-56 || 539-6| 54-2 || 431-4] 54-0 || H Pp} KU) 12-01 || 522-3] 43-6 || 446-0} 43-8 || B
16 0 07-40|| 539-6| 53-8 |} 433-1] 53-2 || H | 24 0 O 18-84 | 535-7] 44-0 || 440-9} 44.7 || H
7s 0) 07-71 || 539-2] 53-3 || 437-0] 52-6 || H x0) 18-84 || 533-3] 44-9 || 451-9] 45-8 || H
18 0 08-14 || 539-0| 52-9 || 440-8} 52-1 | H 2 0 18-67 || 546-3] 45-8 || 442-8] 46-8 || B
1) 96} 07-17 || 539-3 | 52-5 || 445-4] 51-6 || W 3 0 15:85 || 541-8] 46-8 || 450-4) 48-0 || H
20 O 06-90 || 536-0} 52-1 || 449-4; 51-1 | W 4, 10" 14-01 |) 543-4] 47-6 || 455-3) 48-7 Il H
DECLINATION. Torsion removed, Sept. 214 22}h + 19°.* Effect of + 10° of torsion = —0’-84.
BIFILAR. Observed 2™ after the Declination, k=0-000140. BALANCE. Observed 3™ after the Declination, k=0-000010.
Sept. 204 2h_6h, The floor of the Observatory washed: doors open throughout the day.
* Sept. 214 223», This change of torsion may possibly be due to the dampness arising from washing the floor on Sept. 20: the brass
bar was suspended with some difficulty, but it is not conceived that much torsion could have been thus introduced.
+ Extra Observations made.
Hovurty OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 24—29, 1845. Di
| a n
Géttingen BIFILAR. BaLaNnce. |\%_,] Gottingen BIFILaR. BALANCE. = ||"5
Mean Time || DEcLINAa- | 2-8] Mean Time |} Decrina- Pe
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-)| & iC of Declina- TION, Cor- |Thermo-|| Cor- Thermo-| g ‘2
tion Obs. rected. | meter. || rected. | meter. |o tion Obs. rected. | meter. || rected. | meter. || 5
is || ° .- “|| se. Div. g Mic.Div.| ° || a sey omen eet as SouDine ° Meee ll ce
94 5 O|| 25 12-75|| 546-5| 48-1 || 452-5] 49-1 | B | 26 13 0 || 25 11-57 |} 542-1] 52-0 || 428-0| 51-8 | WwW
6 0 11-57 || 542-3| 48-6 || 453-9] 49-4 || W 14 0 11:08 || 542-1} 51-7 || 421-5] 51-3 | W
7 mS) 11-25 || 545-7| 48-7 || 449-3} 49-5 || W 15 0 07-04 || 534-9} 51-3 || 425-3| 50-9 | W
gy 0 11-10 || 557-7| 48-8 || 441-3) 49-5 | W 16 0 05-40 || 532-5] 51-0 || 426-8) 50-5 |W
9 0 10-95 || 557-7| 48-9 || 437-4| 49-6 | W 17 +O 09-24 || 537-4] 50-7 || 431-7| 50-3 | WwW
10 O 10-80 || 555-2] 48-9 || 457-8) 49-5 | B 18 0 09-47 || 539-2} 50-5 || 435-7} 50-1 | W
Tie “0 10-13 || 549-4| 48-9 || 442-7} 49-5 | B 19 0O 09-67 || 541-5} 50-3 || 437-8} 50-0 | B
12 0| 10-77 || 551-8| 48-9 || 442-4] 49.5 || B 20 O 09-77 || 535-0| 50-2 |) 443-6] 50-0 | B
21 0 11-41 || 531-4] 50-0 || 445-0; 50-0 | H
13 0 || 25 01-01 || 539-9) 48-8 || 435-6} 49-5 | D 22 0 14-20 || 522-2| 50-1 || 452-1| 50-2 | H
14 0 || 24 59-09|| 541-9} 48-8 || 400-4] 49.5 | D 23 0 17-60 || 526-0} 50-2 || 449-9} 50-5 || H
15 0 || 24 57-51] 528-9| 48-8 || 351-6] 49-5 | D [27 0 O 17-63 || 523-8] 50-6 || 450-0} 51-0 || B
16 0 || 24 53-38|| 530-4] 48-8 || 278-0] 49-5 | D 1 O 16-99 || 528-8} 51-0 || 451-1} 51-7 || H
17 0 || 25 01-61 |) 543-7| 48-8 || 261-1] 49-6 | D 2 0 15-64 || 535-6] 51-7 || 449-2} 52-5 | H
18 0 11-74 || 520-2| 48-8 || 256-7| 49.7 | H op 10 14-85 || 534-6| 52-4 || 456.2) 53-3 || H
19 O 17-84 || 517-8] 48-8 || 297-0] 49-6 | H 4 0 16:77 || 541-4| 53-0 || 462-6] 54.1 | H
20 O 12-82 || 506-6| 48-8 || 352-9} 49-5 | H 5 0 07-79 || 526-2} 53-8 || 490-5) 54-8 || W
oN 0 19:04 || 508-8] 48-7 || 382-4} 49.4 | W 6 O || 25 11-37 }| 540-3} 54.4 || 504-7) 55.2 | W
292 0 16-15 || 528-7) 48-7 || 392-5] 49.3 | WwW ia Ot 24 43-06 || 555-0} 54-8 || 487-1] 55.5 | W
23 0 17-42 || 521-5| 48-7 || 416-4} 49.5 | WwW 8 0 || 24 57-56 || 528-9} 54-8 || 485.2} 55-5 || H
25 0 0 16-08 || 525-1] 48-9 |) 430-7} 49-7 || W 9 O || 26 01-21 || 514-2} 54-8 || 476-6) 55-3 || W
1 0 21-83 || 524-9] 49-3 || 448-3] 50-2 || W 10 O 07-29 || 536-0) 54-6 || 452-0} 55-0 | H
74, AD) 23-341] 542-1] 49-9 || 551-5} 51-0 | B 11 ot 16-93 || 519:6| 54-4 || 338-8} 54-7 || W
on 0 19-24|| 528-0] 50-8 || 579-2} 52-1 B 2F (0) 09-57 || 537-1| 54-0 || 342-8] 54-5 || H
4 0 21-59 || 525-8] 51-7 || 519-3} 53-0 | D
op 0 17-63 || 568-9] 52-6 || 486-4} 54-1 | D 7 28 13 0 || 25 07-92)] 533-1) 52-2 || 420-7} 51.7 B
6 0 07-99 || 564:0| 53-3 || 706-6] 54-8 || W 14 0 08-08 || 536-7] 51-9 || 414-9} 51-3 B
ma 40 07-15 || 540-0} 53-8 || 554-2] 55.2 || W 15 0 07-52 || 532-1] 51-5 || 421-9} 50-9 | B
8 0] 12-26 || 538-7] 54-1 || 485-6} 55-3 || W ler 10 10-68 || 534-9] 51-1 || 424-1} 50-5 || B
9 0 || 25 09-26] 533-7) 54-2 || 476-5] 55.5 || H tir 0) 09-08 || 535-1] 50-8 || 424-0} 50-0 B
10 0 || 24 56-40]| 544-0] 54-2 | 453-0) 55-4 || H 18 0 11:57 || 535-3) 50-4 || 424-2) 49.6 || B
11 3 || 25 07-81 || 547-7] 54-0 || 409-0| 55-0 || B L950, 12-56 || 538-7} 50-0 || 419-9| 49.3 || H
IP) 07-71 || 534-9| 53-8 || 396-5] 54-5 || B 20 O 11-71 || 534-2] 49.8 || 431-8} 49.0 | H
| 215 0 13-50 || 530-6} 49.5 || 433-1| 48-9 || W
13 0 || 25 09-84 || 534-8] 53-5 || 385-9] 54-0 || B 22 0 13-93 || 528-2| 49.4 || 431-8} 49.0 | H
TAs 0 08-08 || 535-5] 53-2 || 388-4] 53-5 || B 3) 10 15-01 || 525-3) 49-4 || 435-8} 49-2 || H
15 0O 05-79 || 525-6| 52-8 || 397-7] 53-0 || B | 29 0 O 15:61 || 534-7) 49-6 || 440-0} 49-8 | H
16 0 14-13 || 518-6] 52-5 || 382-4] 52-5 || B 0) 15-83 |) 535-4] 50-0 || 441-1| 50-5 | H
7 60 12-76 || 529-8} 52-1 || 388-0} 52-0 || B 2 0 14-58 || 535-8] 50-5 |) 449-1] 51-2 || H
18 0 09-42 |) 536-1] 51-8 || 413-9] 51-5 | B 3) 40) 14-17 || 539-1] 51-2 || 454-7] 52-0 || H
19) 20 15-07 || 523-1] 51-4 || 420-4) 51-0 | H 4 0 12-23 || 541-6] 51-9 || 458-1] 52-6 || H
20: 0 11-14]| 529-7] 51-0 || 431-3] 50-5 | H 5. (0 08-99 || 531-6) 52-3 || 462-3} 53-0 || H
21 0 12-58 || 530-2] 50-7 || 437-1} 50-2 | W 6 0 08-75 || 541-8] 52-6 || 472-6] 53-2 || B
OE) 10) 11-54 || 530-5] 50-4 || 435-8} 50-0 | H “i 08-58 || 544-3) 52-7 || 465-4} 53-1 B
237 0 12-85 || 525-5] 50-4 || 445-4] 50-3 | H 8 0 06-73 || 538-0] 52-6 || 451-5] 52-8 || B
26 0 0) 17-53 || 526-7) 50-4 || 442-3) 50-5 | H 9 0 06-39 || 536-6| 52-3 || 446-0) 52-5 || B
808 16-79 || 532-7| 50-7 || 442-6] 51-2 | H 10 O 04-71 || 533-2} 52-0 || 442-5) 52.2 | B
2 0 15-58 || 533-0] 51-0 || 446-9] 52-0 | H 11 0 06-71 || 535-2] 51-8 || 431-9] 52-0 || W
Bp 10° | 14-48 || 531-0) 51-7 || 449-7] 52-5 | H 12 0 05-85 || 529-3} 51-6 || 415-9] 51-7 || W
4 0 14-77 || 532-4| 52-2 || 465-9] 53-0 | H
5 0 09-57 || 531-6] 52-7 || 472.8] 53-5 | H 13. 0 || 25 07-85 || 524-1] 51-4 || 406-3) 51-4 || W
6 0 11-48 || 539-5] 53-1 || 464.0] 53.9 / B 14 0 06-76 || 531-0] 51-2 || 391-9] 51-1 || W
7h 40) 10-60 || 544-9} 53-4 || 455-3] 54-0 || B 15 0 01-88 || 535-3) 51-0 || 392-2) 50-9 || W
S70 09-93 || 541-1| 53-4 || 453-5} 53-8 || B 16 0 04-69 || 538-2) 50-8 || 396-9) 50-7 || W
9 0 08-16 || 535-1] 53-2 || 457-1] 53-5 || B 7 (0) 09-06 |) 537-6) 50-6 || 410-0} 50-5 || W
10 O 10-09 || 536-4) 52-9 || 451-9) 53.0 | B 18 0 08-59 || 539-6| 59-4 || 416-6] 50.3 || W
M0 10-53 || 539-0] 52-6 || 445-0] 52-6 || W 19 O 10-56 || 538-4} 50-2 || 424-7) 50-0 || B
12 0 11-07 || 538-1] 52-3 || 442-6! 52.2 | W 20 0 11-42 || 537-8] 50-0 || 432-0} 49-8 || B
DECLINATION. Magnet untouched, Sept. 214—Dec. 294.
BiFitar. Observed 2™ after the Declination, :=0:000140. BabLancr. Observed 3™ after the Declination, s=0-000010.
+ Extra Observations made.
Sept 244 10%—254 10»,
Term-Day Observations made.
or
2 HovurRLy OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 29—OcTOBER 4, 1845.
Gottingen | BIFILAR. | BALANCE. " _ | Gottingen BIFILAR. BALANCE. Pe i
Mean Timets||| WD RCLINA= || —-s-- ncaa oeeneet ll emanate (ted = Mean Time | DECLINA- | ———__, ___ 4 a eee Pe ;
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- 2 ‘E | of Declina- TION. Cor- |Thermo-| Cor- |Thermo-|| $2}
tion Obs. | rected. | meter. | rected. | meter. || | tion Obs. rected. | meter. | rected. | meter. ae :
a: RL. an. ree we Se. Div. ° —||Mie. Div.| ° a. he ee, il’Sathe: e |/Mie.Diy.| ©
29 21 O|} 25 10-92} 533-6; 49-9 || 434-2) 49-7 || H 2 5 O || 25 11-71] 533-9} 53-2 || 456-9| 54-1 Hy
22 0 |i 10-74 || 526-4! 49-8 || 440-2} 49-8 | H 6 0 11-12|) 541-2} 53-4 || 449-8) 54.2 BI
23050) | 10-70 || 531-9 50-0 || 438-6} 50-0 | H th asl) 11-15 || 544-1) 53-5 || 442-4) 54-2 BT
30 O O|} 13-81 || 534-6) 50-4 || 441-5) 51-0 | B 8 0 10-13 || 544-2} 53-5 | 440-0] 54-1 B
ee |) 16-48 535-8 | 51-1 | 446-8) 52-0 | B 9 0 09-96 || 543-1] 53-4 || 438-0] 53-9 B
2 0 16-25 |) 537-6) 51-6 || 449-7| 52-3 B 10:-40 10-00 || 542-5) 53-2 | 437-2| 53-7 BY
3 0) 14-43 || 539-0} 52-0 || 452-9} 53-0 || H Live® 10-09 |) 542-7} 53-1 || 435-1] 53-4 || W
4 0 13-09 || 540-5) 52-7 || 454-0] 53-5 || H 120 10-04) 543-3) 52-9 / 434-6; 53-1 || W
5 0 10-83 || 538-9; 53-0 | 453-9] 54-0 || H |
6 0 09-00 || 542-4; 53-1 | 450-6} 53-9 || W 13 0 | 25 10-56] 541-1! 52-7 || 436-6] 52-8 | W
te VO 09-64 || 541-0) 53-1 || 445-8] 53-5 || W 14 0 10-51 || 541-7; 52-5 | 436-3] 52-5 || W
8 0 10-00 || 541-7!) 52-8 || 443-3} 53-1 || W nt) 10-21 || 542-5} 52-3 | 436-2| 52-1 || W
9 O 10-07 || 541-4! 52-5 || 439-3] 52-6 || W 16 0 10-23 || 542-4| 52-0 | 437-1] 51-8 || W
10 O 10-36 || 540-6| 52-1 |) 439-4] 52.0 | WwW 17" 0 10-45 |) 541-8| 51-7 || 437-8) 51-4 || W
1S) 10-13 || 541-3) 51-7 | 436-9] 51-4 | H 18 0 10-23 || 542-1) 51-4 || 436-7] 51-0 || W
12 0 08-79 || 539-9| 51-2 | 434-2) 50-8 | H 19 0 09-62 || 542-2) 51-1 || 438-5} 50-6 B
} 20° “O 09-08 || 538-8} 50-9 || 442-7] 50-3 B
13 0 | 25 09-42)! 539-1) 50-8 || 434-8] 50-3 || H Zire 07-57 || 533-8| 50-6 || 448-5] 50-2 || H
14 0 09-66 || 538-1] 50-4 || 438-6] 50-0 || H P72) aU) 09-13 || 526-2! 50-3 || 449-0] 50-0 || H
itsy (0) 10-53 |, 537-9| 50-0 || 438-3} 49-7 || H 250 | 11-61 || 527-0} 50-2 || 439-9| 49-8 || H
IG 12-11|) 540-9| 49-8 || 431-7] 49-5 || H BT (1) al 16-36 || 525-4} 50-0 || 433-2! 49-7 || H
ily 10:30 || 539-9| 49-6 | 434-3] 49-2 | H 1arko 18-77 || 528-5} 50-0 || 430-5| 49-7 || H
18 0 11-08 || 540-3) 49-4 || 437-0] 49-0 || H 2°40 20-15 || 529-5| 49-9 || 439-3] 49-7 B
19 0O| 10-03 542-8} 49-2 | 439-4] 48-8 || W 3 0 18-57 || 529-4| 49-8 || 447-6] 49-6 B
20 O 11.64 |) 538-0) 49-0 || 442-8) 48-7 | W 4 0 15-91 || 537-2) 49-8 | 452-0] 49-5 B
21, 0 08-83 || 536-4} 48-9 || 445-5] 48-7 B 5 Ot 07:04 || 534-1] 49-7 || 475-7] 49-4 B
22570 09-46 || 526-6| 48-9 | 449-5| 48-9 W Gee 11-75 || 535-9] 49-6 || 482-6] 49-5 Ww
2an0 14.21 || 527-9| 49-0 | 448-7] 49-3 || W 120 11-24 |) 537-5| 49-5 || 472-7) 49-5 || W
0) 00) 16-77 || 522-7) 49-5 |} 451-1] 50-0 || W SO) || 11-01} 540-2] 49-5 || 467-2) 49-5 || W
1 0 19-28 || 530-4] 50-1 || 447-6| 50-8 || W 9 0 10-48 |) 542-0} 49-4 | 459-7} 49-5 || WH
20 18-00 |) 532-0) 50-8 || 453-5] 51-8 || W 10°70 10-48 || 543-0} 49-4 || 453-3] 49-4 || W
3 0] 16-63 || 538-1] 51-6 || 455-5] 52-5 || W i 0) 09-08 || 540-6) 49-3 || 452-7] 49-5 || H
a (y) | 12.82 || 541-1] 52-2 | 472-8] 53-1 W 12 Ot 04-37 || 547-5; 49-3 || 433-1] 49-4 | H FF
5) (0) * 12.70|| 537-6| 52-7 || 475-2| 53-5 || W
6 0 10-60 || 540-5| 52-8 || 470-2] 53-6 || W 13. O || 25 08-41 || 540-3} 49-3 | 432-3} 49-4 || H |
g¢ 10-30 || 538-0] 52-9 | 472-3) 53-7 || W 14 Of 18-77 || 550-1} 49-2 || 407-0] 49-4 || H
8 0 10-01 || 537-7| 53-0 | 465-0| 53-6 || H By 5) 08-16 || 540-8} 49-2 || 414-0] 49-4 || H
9 0 08-41 || 540-5} 52-9 || 455-7) 58-5 || H 16 0 08-46 || 542-1| 49-2 || 424-1] 49-2 || H
10 0 05-76 || 536:9| 52-8 || 441-8] 53-3 | H 17°30 08-97 || 543-9] 49-1 | 427-9] 49-1 H
Lie eo 08-45 || 540-7| 52-7 || 443-9} 53-2 B 18 0 08-48 || 542-0] 49-0 || 432-9) 49-0 || H J
12 0O 09-64|| 541-8| 52-6 || 438-7] 53-0 | B 19 O| 10-11 || 542-5] 48-8 || 434-8] 48-7 | W
| 20 0 || 08-75] 542-2| 48-7 | 438-4} 48-5 | W
13 0 | 25 08.41 || 534-2| 52-4 | 433.2) 52-8 B 21 GO 08-21 || 536-3| 48-6 || 445-5! 48-3 B
14 0O| 08-45 || 537-3} 52-3 || 409-8} 52-7 || B 20) |i 08-85 || 532-2] 48-5 || 446-8] 48-3 | Ww
oO 08-48 || 539-0} 52-2 || 410-0} 52-5 B 2B) ()) 12-16 |) 529-8} 48-4 || 439-7) 48-3 || W
116) 20 13-90 || 551-1) 52-1 396-1| 52-4 || B 4. '0F 40 14-82 || 529-2) 48-4 || 436-3) 48-5 || W
il7e (OP) 11-37 || 540-2; 52-0 || 408-7} 52-2 B j eo) 16-19 || 526-1] 48-6 || 433-5| 48-7 || W
18 0 10-72 || 544-1] 51-9 || 419-3} 52-0 | B 240 16-55 || 532-0| 48-7 || 435-1) 48-9 || WP
19 O | 10-07 || 541-6| 51-7 | 428-5| 51-8 || H B00 16-10 || 538-6] 48-8 || 441-4] 49-0 || W
20 O| 08:09 || 540-4| 51-5 || 435-9} 51-5 || H 450 13-83 || 539-9| 48-8 || 445-9] 48-9 || W
PAL (0) 09-08 || 534-2| 51-4 || 439-4} 51-3 || W 50 12-09 || 541-5] 48-7 || 478-5} 48-7 || W
22 0 11-17 || 528-0} 51-2 || 439-1] 51-3 | H 6 0 11-10) 542-0| 48-5 || 446-6} 48-6 || H
23500 11-37 || 527-7) 51-2 | 439-2) 51-5 | H 7) 11-01 |) 543-6] 48-3 | 441-7] 48-3 | H
2 n0nn0 16-45 || 537-7] 51-4 || 426-9} 51-7 || H 8 0 10-41 || 543-0} 48-1 | 441-2] 48-0 || H |
>) 16-48 || 531-6| 51-7 | 431-4] 52.2 | H 9 O 10-14|} 543-0} 48-0 || 440-7] 47-7 || H |
2 0 16-59 || 534-1) 52-0 | 435-0] 52-6 || H 10 O 09-84 || 542-2) 47-8 || 441-4| 47-5 || H
5) 15-34 || 536-4] 52-4 |) 443-6] 53.2 | H 1 0) 10-03 || 541-9] 47-7 | 443-4] 47-3 B
450 || 13-63 || 537-6! 52-8 | 452-4! 53-7 || H L250" 10-03 || 541-4! 47-5 | 444-3! 47-0 By
DECLINATION. Magnet untouched, Sept. 214—Dec. 294.
BIFILAR. Observed 2™ after the Declination, k=0-:000140. BALANCE. Observed 3™ after the Declination, k—0-000010.
|
; ff
+ Extra Observations made. |
HovurLy OBSERVATIONS OF MAGNETOMETERS, OcTOBER 5—10, 1845. DS
Gottingen BIFILAR. BALANCE. % 4] Gottingen BIFILAR. BALANCE. * -
Mean Time DECLINA- s Ss Mean Time DECLINA- q 5
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- a & | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- g &
tion Obs. rected. | meter. || rected. | meter. || 5 tion Obs. rected. | meter. |] rected. | meter. || ©
SP 2 |IMic. Div.) ° dS Bin Ties ll ett ea Se. Diy.| © Mic. Div. °
5 13 O|| 25 09-54|| 545-1) 47-0 | 436-1] 46-5 W117 21 O|| 25 07-65]|| 534-0! 46-6 || 439-0] 46-4 |] W
14 0 09-29 || 543-8} 46-5 || 437-5| 45-9 | W 22 0 08-25 || 531-4] 46-4 || 439-7) 46-3 || H
15 0 09-86 || 541-7] 46-0 || 439-5| 45-3 | W 23 0 10-90 || 529-1] 46-3 || 439-7] 46-3 | H
16 0 10-33 || 541-7] 45-5 || 441-3) 447] WI8 0 0 13-67 || 531-1] 46-3 || 435.2} 46-5 | H
17 +O 09-51|| 542-6] 44-9 || 442-2} 44.0 | W 1d 15-39 || 532-1| 46-5 || 436-8] 47-0 || H
18 0 09-60 || 542-0] 44-4 || 442.9] 43.4 || W 200, 16-08 || 536-3] 47-0 || 442-2) 47-6 | H
Lo 0 09-59 || 539-4| 43-9 | 444-0] 42-8 B anO 15-31 || 539-6] 47-6 || 447-2) 48-4 | H
20 0 09-00 || 533-8| 43-3 || 446.2| 42.2 || B 4 0 12-58 || 542-6] 48-2 || 451-9) 49.2 | H
21 0 09-08 || 536-7| 42-8 | 445-6] 41-8 || H 5 O 11-75 || 544-2| 48-9 || 449.9] 49.7 || H
| 22 0 07-87 || 530-5| 42-5 || 447-6| 41-7 || H 6 0 10-75 || 545-2| 49-4 || 449-4] 50-0 B
23 (0 11-27 || 526-4| 42-3 | 440-7] 42.0 || H “ 11:10 || 544-9) 49-7 || 447-2] 50-2 || B
6 0 0 14-73 || 522-3| 42-3 | 440-5] 42.5 || B 840 10-70 || 544-4] 49-8 || 446-6] 50-1 B
0 18-30 || 536-9] 42-7 || 440-3} 43.5 || H 9 0 11-15 || 544-3] 49-7 || 444.0] 50-0 | B
2 0 19-28 || 549-3] 43-7 || 448-8] 45-0 B 10 O 10-77 || 546:8} 49-6 || 437-5] 49-8 || B
3.0 19-34 || 546-8] 44-9 || 461-9} 46-7 || H Hi 06-95 || 551-7] 49-4 || 429-7] 49-7 || W
. 4 0 16-53 || 542-2} 45-9 |) 466-6| 47-2 | B 12 0 07-52 || 548-5| 49-3 || 422-6] 49-6 || W
. 5. (0 10-70 || 541-2| 46-8 |) 477-2] 47-8 || H
2 6 0 10-06|| 536-0| 47-3 || 484-9| 48-1 || W 13 O || 25 07-82 || 542-0} 49-3 || 424-4] 49-6 || W
+O 10-50 || 541-5| 47-4 || 481-7| 48-2 || W 14 0 08-79 || 540-7 | 49-3 || 427-1] 49-6 || W
8 0 07-72|| 536-8] 47-6 || 481-6| 48-3 | W 15,70 07-37 || 543-9| 49-3 || 426-7] 49-6 || W
9 0 08-93 || 540-8| 47-6 || 470-9| 48.3 || W 16 0 07-11 || 543-9| 49-2 || 425:8| 49.5 || W
10 0 10-72]| 545-5| 47-5 || 455-5] 48-1] W 17 O 06-68 || 543-3) 49-2 || 427-6] 49-5 || W
Lte0 10-51 || 544-7| 47-4 | 449-7| 48-0 | H ey) 08-28 || 540-9} 49-1 || 428.2} 49.5 || W
12 0 11-61 |) 554-1} 47-2 || 431-6} 47-8 || H 19-0 08-25 || 541-9} 49-0 || 427-6} 49.3 | B
20 O 09-35 || 541-6} 48-9 || 434-9] 49-1 B
13 © || 25 06-73|| 544-5] 47-1 || 429-6] 47-6 || H 20 07-13 || 539-3} 48-8 || 436-4] 49-0 || H
14 0 10-16 || 544-0] 47-0 || 428-1] 47-5 | H 220 08-31 || 534-5| 48-7 || 441-7] 48.8 || H
15 0 08-29 || 541-0| 46-9 || 433-8| 47-3 | H 23 0 10-27 || 530-2} 48-7 || 429-6] 49-0 | H
16 0 08-66 || 541-4| 46-9 | 437-2} 472] H}9 0 O 12-80 || 532:3| 48-7 || 437-0] 49.7 || B
7 20 10-09 || 548-1] 46-8 || 455-6] 47-1 | H 10 14-60 || 535-5| 49-0 || 435-1] 50-3 || H
18 0 07-78 || 544-3] 46-7 | 438-0] 47-0 ] H 2 0 14-53 || 540-1] 49-7 || 435-7} 50-9 || H
19 O 08-03 || 542-7| 46-6 || 437-5] 46.9 | W a (0) 14-18 || 544-6] 50-5 || 437-1] 51-6 | H
20.20 07-60 || 538-5] 46-5 || 441.6] 46-9 | W 4 0 12-95 || 546-1] 51-2 || 436-2} 52.2 || H-
21 0 07-79 || 535-6| 46-5 || 442-5] 46-8 | B 5 0 12-45 || 545-8] 51-9 || 439-8] 52-7 || B
22) 50 08-66 || 529-2] 46-5 || 442.6] 46-9 | W 6 0 11-51 || 541-9] 52-2 || 436-3] 52-8 || W
v3.0 11-44|| 525-8] 46-6 || 444.6| 47-2 || W “a 12-26 || 547-1| 52-3 || 443-7] 52.8 ] W
mm (0-0 14-82 || 528-0| 46-8 || 440-9| 47-5 || W 8 0 13-17 || 551-0 | 52-3 || 445-0] 52-5 || W
ti0 16-63 || 532-1] 47-2 || 440-3| 47-8 || W 9-0 11-82.]) 549-4| 52-0 || 449-0] 52-2 || W
2rK0 16-65 |) 536-1) 47-5 || 442-7) 48-3 W 10 O || 25 04-82} 536-4] 51-7 || 446-5] 51-7 | W
5) a0) 16-13 || 542-8| 47-8 || 445-3| 48-7 | W 11 Of|| 24 43-72) 512-3] 51-3 || 420-3) 51.2 | H
4 3 13-29} 546-2} 48-2 || 446-7| 48-9 Wi 12 OfF|| 24 53-32]} 499-1] 51-0 || 236-8] 50-8 || H
5 0 11-12} 544.2} 48-3 || 452-8| 49-0 || W
G0 09-12] 539-5} 48-4 || 456-4| 49-0 | H 13 Of] 24 54-01 || 496-7| 50-7 || 298-3] 50-6 || H
0 11-95 || 543-5| 48-4 || 452.4| 49-0 || H 14 OF|| 25 01-65 |) 526-6] 50-4 || 323-4) 50-3 || H
8 0 10:70|| 545-4| 48.4 || 450-9| 49-1 | H 15 OF 00-06 || 533-1} 50-1 || 319-5} 50.0 || H
oe0 10-16 || 545-9| 48-4 || 446-7| 49-0 | H 16 0 06-73 || 535-2| 49.9 || 372-6] 49.7 || H
10 0 09-74 || 540-5] 48.3 || 444-8] 48-9 || H 17 O 10-50 || 536-4} 49-7 || 398-6| 49-4 || H
Li>-O 09-03 || 543-7] 48-2 || 440-5| 48.7 | B 18 0 10-00 || 542-4} 49-4 || 419-2) 49-1 | H
12 0 06:06 || 540-1] 48-1 || 433-3] 48-5 || B 19 0 10-03 || 534-3) 49-1 || 435-5] 48-8 || W .
20 0 10-51 || 537-5 | 48-8 || 438-0} 48-5 || W
13 0 || 25 07-13)| 541-9] 48-0 || 409-0} 48-2 || B 2 4: 12-92 || 510-5| 48-6 || 444-7| 48.2 || B
14 0 06-59 || 539-6| 47-9 || 414-4] 48-0 | B 22 0 20-77 || 521-1| 48-3 || 436-7| 48-0 || W
15 0 06-84 || 542-0) 47-7 || 422-1] 47-8 | B 23 3 16-92 || 528-5] 48-2 || 437-6) 47-9 || W
16 0 08-05 || 542-1] 47-5 || 426-6) 47-5 | BJ]10 0 O 18-72 || 531-0} 48-2 || 442.2) 48.3 | W
ie ©O 07-84 |, 541-5} 47-3 || 430-7| 47-3 || B 1 O 18-94 || 520-3} 48-4 || 460-0] 48-8 | W
18 0 08-66 |) 541-4) 47-1 || 433-5) 47-1 B aes 18-61 || 531-9} 48-8 || 478-5} 49-3 || W
9) 0 08-41 || 541-9] 47-0 || 435-8] 46-9 | H 3.13 17-19 || 530-5} 49-3 || 470-3) 49-8 | W
20 0 07-71 || 540-6| 46-8 || 436-4! 46-7 || H 4 0 15-39 || 534-9] 49-5 || 465-0! 49-9 || W
} DECLINATION. Magnet untouched, Sept. 214—Dec. 294.
Birizar. Observed 2™ after the Declination, <=0-000140. BALANCE. Observed 3™ after the Declination, k—0:000010.
+ Extra Observations made.
Oct. 74 152.
Oct. 94—124,
A small insect seen on the north cross-plate of the balance magnet.
Workmen engaged erecting a fireplace in the east anteroom.
MAG. AND MET. oBs. 1845.
54 HovurLy OBSERVATIONS OF MAGNETOMETERS, OcToBER 10—15, 1845.
Gottingen BIFILAR. BALANCE. % | Gottingen BIFILAR. BALANCE. $ x
Mean Time || Drcuina- 7 -£ | Mean Time || Decuina- P=
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°g | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 3
tion Obs. rected. | meter. || rected. | meter. SB" tion Obs. rected. | meter. || rected.| meter. om ‘
Gb iy Fave = ¢ Se. Div. & Mice. Div. 2 de) thy, ans 2 ’ Se. Div. 4 Mic. Div. £ b
10 5 O || 25 11-51|| 531-8) 49-6 || 474-9) 49-9 | B | 13 13 O |) 25 10-03]| 543-6} 52-9 || 430-9) 53-9 || B FF
6 0 09-27 || 540-0| 49-7 || 476-6} 50-0 || H 14 0 09-59 || 543-3] 53-0 || 429-5) 54.0 || B Ff
é 20 10-75 || 546-2| 49-7 | 465-7] 50-0 || H 15 0 09-91 || 543-4) 53-1 || 427-5) 54-1 | BY
8 0 10-16 |) 537-7; 49-6 | 468-9; 49-8 | H 1G) 20 09-93 || 544-0} 53-3 | 423-8| 54-2 || B
3) i) 09-08 || 541-3] 49-5 || 462-6| 49-7 || H if 20 09-08 || 545-0} 53-4 || 422-2} 54.3 || B
10 O 07-20 || 539-7| 49-4 || 452-5| 49-5 || H 18 0 11-74 || 542-0} 53-6 || 420-6; 54-5 || B
LO, 08-92 || 539-3] 49-2 | 444-2) 49-2 || B 19 O 10-54 || 536-9| 53-7 || 412-2) 54-5 || H
12 0 09-24 || 535-2] 49-0 || 427-7| 48-9 || B 20 0 09-05 || 543-9| 53-7 || 413-7] 54-5 || H
rail ADD || 07-45 || 538-3} 53-7 |) 419-3] 54-5 || WP
13. 0 || 25 10-97 || 537-8] 48-8 || 432-0) 48-5 | B 22 0 | 08-52 || 533-6) 53-8 | 417-6) 54-7 || H
14.0 09-29 || 538-1] 48-5 || 434.9! 48-2 || B 23 0 | 11-71 || 531-0) 54-0 | 412-4} 54-8 || H
Lomr0 10-36 || 539-3] 48-2 || 435-8; 48-0 | B | 14 0 0} 14-03 || 533-4| 54-0 || 412-1] 55-0 | H
LOMO) 08-34 || 537-4| 48-0 || 437-1| 47-8 || B tO 13-72 || 534-7| 54-3 || 416-9] 55-3 || H
Wr 0) 08-75 || 538-7| 47-8 || 437-2) 47-6 || B 2 0} 12-35 || 537-7| 54-7 || 417-4) 55-7 || H
18 0 13-30 || 533-5] 47-7 || 439-4| 47-5 || B 3.0 | 11-57 || 539-0} 55-0 | 418-0} 56-0 || H
190 13-32 || 544-9| 47-5 || 429-1) 47-5 || H 4 0} 10-38 || 539-7} 55-3 || 418-2] 56-3 | H
20 O 10-06 || 539-8| 47-4 || 435-4| 47-4 || H 5 (0 ) 09-69 | 539-5| 55-8 | 413-5] 56-6 || H
21 0 11-37 || 536-7| 47-4 || 440-9} 47-3 || W 6280 | 10-09 | 542-5) 56-0 | 408-1} 57-0 | B
22 0 09-82 || 529-4] 47-3 || 448-9} 47-2 || H 770 | 10-09 || 543-5| 56-2 || 404-8} 57-0 | B
23 «(0 12-82 || 534-7] 47-3 || 450-0] 47-3 || H 8150!) 09-56 || 542-1} 56-3 || 405-5) 57-0 || B
i Ore0 13-79 || 522-9} 47-4 || 452-3] 47-5 || H Soy 09-64 || 542-0} 56-4 || 408-4) 57-0 | B
it 16-52 || 525-1] 47-5 |) 456-3] 47-9 || H LOSSO 09-08 | 545-8| 56-4 || 406-2) 57-0 || B
270 14-37 || 531-8] 47-8 || 448-8] 48-2 | W hit 0) / 09-35 || 542-0| 56-4 || 407-2] 56-9 || W
Sie 10) 14-92 || 535-1} 48-0 || 456-5) 48-5 | H 125 30) |} 08-16 || 543-8}. 56-3 || 405-4) 56-8 || W
4 0 10-00 || 530-7] 48-4 | 467-1} 49-0 | H |
20 09-06 || 543-8} 48-8 || 481-5) 49-4 | H 13. 0 | 25 09-29 || 541-6) 56-2 | 404-6; 56-6 | W
6 0 09-77 || 538-1 | 49-1 || 468-0} 49-6 | B La S01! 10-56 || 541-8] 56-1 || 404-4) 56-4 || W
0 10-77 || 542-6} 49-4 || 456-3) 49-8 | W 15 0O ) 12-56 || 540-8| 55-9 || 404-1) 56-2 | W
sj 0) 10-63 || 542-7| 49-6 || 452-7} 50-0 || B 16> 0 | 09-89 | 543-2} 55-7 || 403-0] 56-0 || W
9 0 09-89 || 540-9} 49-6 || 450-9} 49-8 || B LSD 10-03 | 544-1! 55-6 || 403-2) 55-8 || W
10 O 07-31 || 541-5] 49-5 || 449-0] 49-6 || B L850) 09-54 || 543-8] 55-4 || 403-9) 55-7 | W
11 O 09-87 || 543-7| 49-3 || 443-1] 49-3 || W ey 09-10 || 542-8} 55-3 || 404-9] 55.7 || B
12 0 09-71 || 540-9] 48-9 || 443-1] 48-9 || W 20 0 08-28 || 540-7} 55-3 | 409-3] 55-7 || B
| 21 0 07-37 | 536-3| 55-2 | 410-4] 55-7 || H
12 13 0 || 25 09-69 }| 540-4] 49-0 || 437-8] 49-1 || H 22 0 | 07-91 || 531-6] 55-2 | 410-5} 55-7 || H
14 0 10-36 || 541-3 | 48-8 || 437-6] 48-8 || H 23 0 | 11-21 || 531-3} 55-2 | 406-1) 55-7 || B
15 O 09-44|| 542-5) 48-7 || 435-3) 48-5 || H }15 O 0O| 14-53 || 534-0| 55-2 || 403-4) 55-7 || B
16 0 10-48 || 541-1} 48-5 || 435-2| 48-3 || H 0 14-87 || 540-5] 55-2 || 405-7) 55-7 || H
17 0 10-47 || 541-9| 48-2 || 432-2| 48-2 || H 2 EO! 14-73 || 542-2] 55-3 || 414-1] 55-9 || B
18 0 09-27 || 544-8| 48-0 || 427-3] 48-0 | H SO 14-46 || 541-9) 55-6 || 420-9} 56-2 || B
Ite) Ww) 08-68 || 545-6 | 48-0 || 431-0] 48-0 || W 4 0} 14-06 || 543-4| 55-9 || 427-4) 56-5 || B
20 O 08-31 || 543-2} 47-9 || 434-7] 47-9 | W d 0 15-09 | 538-6] 56-0 | 433-5) 56-7 | B
21 0O 08-09 || 534-7] 47-9 || 440-3] 48-0 | B 6 0 13-00 || 535-8| 56-2 || 433-1] 56-8 || W |
22 O 09-12 || 530-4] 47-9 || 437-9| 48.2 || W Peo: 10-00 | 539-5) 56-3 | 430-5] 56-7 || W
23 0 |} 11-42 || 530-0} 48-0 || 437-4] 48-5 || W 8 0 | 10-27 | 546-2} 56.2 | 421-6) 56-5 | W 7
3; O40) | 13-93 || 533-4] 48-4 || 4388-4) 49-0 || W 950 08-79 | 541-4) 56-0 || 418-1) 56-3 || W
LO) | 14-40 || 536-6| 48-8 || 442-4] 49.8 | W LO M07, 06-73 || 540-6| 55-8 || 414-9) 55-9 | W
y= (0) 13-79 || 538-8| 49-5 || 443-6| 50-3 | W Liao 05-20 || 537-0] 55-5 || 413-9| 55-5 || H
3 0 12-55 || 540-3 | 49-9 | 445-0| 50-8 | W 12 0 09-24)) 540-5] 55-1 || 412-0| 55-2 | H
4 0 11-27 || 542-6 | 50-4 || 450-0} 51-3 | W
5 0 09-77 || 540-7| 50-7 || 447-8} 51-7 | W 13. 0 | 25 09-84) 541-9] 54-8 | 413-0) 54-8 || H #
(1 10-06 || 542-3} 51-0 | 443-9] 52-0 || H 15920) } 09-39 | 539-3) 54-5 || 415-1] 545 | H |
a0 10-50 || 543-3] 51-4 || 439-4} 52.3 | H 1d 0 09-76 || 539-7] 54-2 || 415-4] 54-1 | H
8 0 10-47 || 543-8) 51-7 || 486-9] 52-7 | H 16 0 10-27 || 541-2) 53-9 || 415-7| 53-8 | H
9 O 10-53 || 542-7| 52-0 || 435-7| 52-9 | H Liao 09-54 | 540-9) 53-6 | 417-3) 53-5 | H
10 O 09-64 || 548-9} 52-2 || 431-1] 53-2 || H LS ao 09-35 || 541-4] 53-3 || 415.4) 53-1 || H
nO) 09-44 || 543-2] 52-5 || 431-4] 53-5 || B ug) 19) 09-54 || 538-6} 53-1 || 417-9) 52-8 | W
12 0 10-27 || 543-81 52-7 |, 430-7! 53-7 || B 20 0 07-84 || 538-3| 52-9 || 424-1' 52-6 || W
DECLINATION. Magnet untouched, Sept. 214—Dec. 294.
Birizar. Observed 2™ after the Declination, s=0-000140. BaLANCcE. Observed 3™ after the Declination, k—=0-000010.
+ Extra Observations made.
Or
On
HourLy OBSERVATIONS OF MAGNETOMETERS, OcTOBER 15—21, 1845.
Gottingen BIFILAR. BALANCE. % _,] Gottingen BIFILAR. BALANCE. ” sf
Mean Time || DECLINA- 2.2] Mean Time | Drcurna- rs
of Declina- TION, Cor- |Thermo-|| Cor- |Thermo- g ‘< | of Declina- TION. Cor- /Thermo-|| Cor- |Thermo-|| $ -=
tion Obs. rected. | meter. || rected. | meter. || O77 tion Obs. rected. | meter. || rected. | meter. Ss -
bee iu. || 7 Se. Div. e Mic. Diy. 2 GL lig any |i] Oo 2 Sc. Div. ° Mic. Diy. ©
15 21 0 || 25 07-60] 533-0] 52-7 | 430-1] 52:3 || B } 18 5 0 || 25 12-45|| 544-0] 56-4 |) 427-5] 57-0 || H
22 0 09-35 || 525-9] 52-5 |) 429-1| 52.2 | W 6 0 12-85 |} 548-0} 56-6 || 423-4) 57-0 || W
23 0 13-52 || 521-8] 52-3 || 426-9] 52.3 | W a Y 12-31 || 549-7| 56-5 || 420-5] 56-7 || W
6 0 0 15-41 || 524-8] 52-4 || 429.8] 52-5 || W 8 0 11-44 || 544-4] 56-2 || 422-8) 56.4 | W
iP 0 16-82 || 530-2] 52-6 || 433-1] 53-0 || W 9 0 11-14] 545-3) 55-9 || 419-2| 56-0 || W
2 0 16-05 || 533-4] 52-9 || 436-2] 53-7 | W 10 O 08-43 || 552-5] 55-6 || 416-7] 55-6 || W
3. 0 13-97 | 535-5| 53-4 |) 443-6] 54.3 || W i 0) 06-39 || 540-5} 55-2 || 419-3} 55-2 || H
4 0 12-58 | 539-8] 53-8 || 445-6] 54.6 | W 120 09-42 || 543-1] 54-9 || 416-9| 54.7 || H }
5 0 11-10|| 539-0] 54-1 |) 439-5| 54-7 || W
G70 11-24 || 542-4] 54-1 | 432-0) 54-7 | H | 19 13 0 || 25 07-74|| 550-3] 53-7 || 406-2) 54-3 || B |
mo LO 10-51 || 544-0} 54-0 | 428-4] 54.5 | H 14 0 02-82 || 540-5] 53-8 |) 405-3] 54-4 | B |
8 0 10-56 || 539-2} 53-9 || 429-4] 54-2 | H 15 O 05-96 || 542-9} 53-9 || 406-1] 54-5 || B
9 0 09-15|| 541-2} 53-7 | 430-1] 54-0 | H 16 0 06-19 || 541-1} 53-9 || 408-3] 54-5 || B
10 O 10:09 || 542-2] 53-4 || 426-7) 53-6 || 17 0 07-00 || 544-7} 53-9 |) 410-1) 54-3 || B
es 08-88 || 543-7] 53-2 || 423-7] 53.3 || B 18 0 09-08 || 544-0} 53-8 || 411-4] 54-0 || B |
12 0 08-68 || 543-6] 53-0 || 421-7] 53-0 || B FOO 10-09 || 541-1} 53-4 || 411-2] 53-5 || H
20 0 09-06 || 540-4) 53-1 || 416-7] 53-0 || H
13 0 || 25 08-52|| 542-9) 52.9 || 420-7] 52-9 || B all (0) 08-08 || 539-1] 52-8 || 419-5] 52-6 || W
14 0 08-28 || 543-9| 52-7 || 422-7| 52.8 | B 22 0 07-20 || 540-3] 52-5 || 408-5] 52-2 | H
15 0 06-86 || 542-8] 52-6 || 422-9] 52.7 || B Za 0 12:65 || 535-0| 52-2 || 398-0} 52-2 | Hf
16 0 12:01] 544.7] 52-4 || 420-6] 52-6 | B | 20 0 0O 16-87 || 535-8 | 52-2 || 395-5) 52.2 || H
rn 10 08-14 || 551-7] 52-3 || 404-9) 52.5 || B 1 0 18-00 || 539-9] 52-1 || 401-3) 52-3 || H f
SiO 09-40 || 550-0] 52-2 || 406-0} 52.4 || B 2, 0 21-54 || 552-7| 52-1 || 417-4) 52-3 || H
19 0 14.57 || 547-9] 52-1 || 401-7] 52.3 || H 3) VOT 25-43 || 542-7) 52-2 || 445-5) 52-5 || H
20 0 13-05 || 540-5] 52-0 || 405-3] 52-2-| H 4 of 20-05 || 536-2} 52-3 |) 461-3} 52-7 || H
21 +O 12-09 || 537-9] 52-0 || 404-8| 52.0 | W 5 0 13-07 || 542-2] 52-4 || 450-7) 52-5 || H
22 0 08-48 | 529-5) 51-9 || 411-0] 52.0 || H 6 0 11-91 || 542-8) 52-3 |) 440-0} 52-3 || W
23 «0 11-46 || 526-3] 51-8 || 416-2} 52-0 || H i ) 11-64 || 541-8} 52-1 || 431-6] 51-9 || B }
7, ‘0.0 14-15] 530-4] 51-9 || 422-6) 52.2 | H 8 0 11-74 || 541-6] 51-8 || 429-0] 51-4 || B f
L220 15-99 || 525-9} 52-0 || 421-2] 52.5 || H 9 0 11-28 || 541-4] 51-4 || 428-4] 50-9 | B
2% \) 16-57 || 537-4] 52-2 || 425-6] 52.7 || H 10 0 10-77 || 539-2] 51-0 || 432-0} 50.4 | B
3 MU) 20-46 || 538-9] 52-4 || 439-1] 53.0 | H EOF 08-95 || 533-0] 50-6 |] 438-3) 49.9 || W
4 0 19-55 || 538-2] 52-5 || 453-6) 53-0 || H 12 0 || 25 05-79|| 539-1} 50-3 || 441-2] 49.6 || W }
5 (0 15-67 || 538-1) 52-7 || 463-2] 53.2 || H
6 0 14-01 || 539-5] 52-8 || 467-6] 53.3 | B 13 Ot 24 58-33 || 539-2] 50-0 || 400-5) 49-3 || W
ato 11-91} 541-2) 52-9 |) 465.2] 53.5 || B 14 0 || 25 01-85 |} 535-9) 49-6 || 404-2} 49.0 || W
8 0 11-84], 544-6] 53-0 || 453-9] 53-8 | B 15 0 00-38 || 540-5} 49-3 || 395-6] 48-6 || W
9 0 10-09 || 542-8) 53-2 || 447-6] 54.0 || B 16 0 06-06 || 538-2] 48-9 || 397-2] 48.2 || W }
10 O 09-96 || 539-6] 53-4 || 444-8] 54.2 | B We Oh 12-01 || 538-8] 48-6 || 388-0] 47-8 || W |
11 ot 25 12-48 || 552-9] 53-6 || 425-4] 54-5 || W LSPBOF 17:54 || 521-6] 48-2 || 364-9] 47-5 || W |
12 0 || 24 59-76}! 540-3) 53-9 || 423-7,) 54-8 || W LONSOT 19-91 || 518-4] 47-9 || 396-3] 47.2 || B f
20 O 17-89 || 539-3} 47-6 || 399-8} 47-0 | B |
13. 0 || 25 04-41} 534-7] 54-1 | 431-1] 55-0 || W 21 O 10-34 || 531-8} 47-4 || 420-2} 46-9 | Hf {
14 0 02-75 || 534-4] 54-4 || 424.6} 55.2 || W 22 0 13-36 || 527-7| 47-2 || 419-8| 46.7 || H |
15 0 06-36] 535-9] 54-6 || 426-6] 55.4 | W 23 70 16:68 || 526-4] 47-1 || 411-5] 46-8 || B
16 0 06-41 | 540-7| 54-7 || 421-7] 55-5 | W721 0 O 19-28 || 513-0] 47-0 || 428-5] 47-1 | H
0 08-65 | 539-6] 54-7 || 425-0] 55-5 | W 1 O 20-65 || 530-1} 47-2 || 452.6] 47-4 | B }
18 0 10-65 || 540-6] 54-7 || 424.4] 55.5 | W 2 4 23-16 || 524-9} 47-3 || 455-1} 47-7 || Hf
19-30 09-73 || 543-0] 54-8 || 423-1] 55-5 || B 3) 14-80 || 533-9] 47-6 || 484-5] 48-0 | B f
20 0 08-79 || 539-3] 54:8 || 426-7] 55-4 || B 4 0 16-01 || 534-4] 47-9 || 475-7} 48-3 || B
21 0 08-25 || 537-5| 54-8 || 430-0| 55.4 | H 5 0 12-45 || 537-3} 48-1 || 463-3) 48-6 || B
22 0 09-98 || 529-1] 54-8 |) 431-4] 55-4 || H 6 0 11-48 || 539-3] 48-3 || 458-0) 48-9 || W |
23 0 12-29) 530-9] 54-8 || 425-9| 55-5 || H 10) 11-51 |) 540-3} 48-5 || 453-6] 49-2 | W
ES, 0 0 14-94} 535-7| 55-0 || 423-8] 55-7 | B 8 0 10-95 || 541-9] 48-7 || 450-7) 49-3 || W
oO 15-36 || 538-7] 55-2 || 419-4] 56-0 || H 9 Of! 25 08-12] 5382-0] 48-8 || 453-3] 49-5 || W
270 15-91) 545-1} 55-6 || 415-5) 56-3 || B 10 4! 24 46-59 || 534-3) 49-0 || 466-1] 49-8 || W
30 14-87 || 545-6] 55-9 || 423-8] 56-7 || B 11 OfF| 25 07-13} 536-3| 49-2 || 445-8) 50-0 || H |
4 0 13-25 || 545-3! 56-1 || 428-5! 56-9 || B 120 01:07 | 530-5| 49-4 || 403-3] 50-0 || H
DECLINATION. Magnet untouched, Sept. 214. —Dec. 294.
BIFiLaR. Observed 2™ after the Declination, & — 0:000140. BALANCE. Observed 3™ after the Declination, = 0:000010.
+ Extra Observations made.
56 HourRLy OBSERVATIONS OF MAGNETOMETERS, OcTOBER 21—27, 1845.
Gottingen BIFILAR. BALANCE. | Gottingen BIFILAR. BALANCE, So
Mean Time || Decrrna- || ——— | |) 2k | Mean Time ||) Deciina- |—@ >| — Pel
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°g | of Declina- TION. Cor- |Thermo-| Cor- |Thermo-|| 3°5 }
tion Obs. rected. | meter. || rected. | meter. 5 “1 tion Obs. rected. | meter. || rected. | meter. Ss ae |
diwike. me 2 , Se. Diy. ° Mie. Div. * dy hs ame ° , Se. Div. ° Mic. Diy. 2 i
121 13 O || 25 04-75 || 517-0| 49-4 || 369-1] 50-0 || H | 23 21 O || 25 11-48]| 536-0] 50-2 || 433-9] 50-3 | H Ff
14 Of, 08-95 || 532-7} 49-4 || 318-6] 50-0 | H 22) 0 12:85 || 527-5) 50-0 || 435-9] 50-2 | H |
15 OT 06-06 || 510-9} 49-3 || 306-7] 49-8 || H 23 0 15-94 || 527-2| 50-0 || 435-2} 50-2 || H |
16 Ot 17-46 || 528-6] 49-3 || 306-2] 49-8 HH W24 OF 0 16-86 || 530-6| 50-0 || 436-8} 50-4 || H ¥
77 40) 11-10 || 535-8] 49-3 || 346-1] 49-8 || H 10) 17-36 || 532-3| 50-1 || 440-3| 50-5 B
ifs} () 07-52 || 535-7| 49-2 || 389-7] 49-7 || H 210 19-41 || 542-9! 50-3 ||) 442-6] 50-8 B ft
19 0 | 08-82 | 536-9} 49-1 || 409-1] 49-5 WwW Bi) 14-68 || 527-8| 50-5 || 446-8] 51-0 || H
20) Or || 08-90 || 539-4| 49-0 || 426-6] 49-4 || W 4 0 14-13 || 540-8} 50-7 || 461-4] 51-2 BI
Py td) 08-48 || 533-0| 48-9 || 428-4] 49-2 B Hiei) 13-46 || 540-4] 50-8 || 468-6] 51-5 || H
22 0 | 09:96 || 527-9| 48-8 || 440-0] 49-2 || W 6 0 12-26 || 536-4! 50-9 || 470-8] 51-5 || W
23 0 12-87 |] 528-8} 48-8 || 428-3] 49-2 || W Tel) 08-92 || 537-5! 50-9 || 468-2} 51-5 || W
92 0" "0 | 14-17] 533-4| 48-9 || 428-4] 49-5 | W 8 0 09-02 || 537-7) 51-0 || 461-5] 51-5 || W
1.) 16-35 || 530-2} 49.2 || 434-1] 49-8 | W 9 0 10:90 || 537-2} 51-0 || 454-9] 51-5 | W
Ail) 16-43 || 534-7] 49-6 || 430-5] 50-3 || W 10 O 08-19 || 543-7! 51-0 || 446-0} 51-5 || W
oF 14-31 || 538-4] 49-9 || 437-7| 50-8 || W 1 So 07-72 || 540-2} 51-0 || 442-0] 51-5 || H
4 0 11-86 || 538-6} 50-4 || 438-9] 51-3 || W 12550 08-72 || 543-4] 51-0 || 4384-5] 51-5 | H |
>» 0} 11-44 || 541-0} 50-8 || 460-2} 51-7 || W
or 30 | 01-58 || 540-3] 51-0 || 467-3} 51-8 H 13. 0 || 25 08-68 || 543-0|] 50-9 || 430-3] 51-5 |) H
7 30 12-18 || 540-0] 51-1 || 454-3] 51-9 || H 14 0O 08-59 || 542-7} 50-9 || 426-0] 51-5 || H
SUs0r | 09-93 || 542-3) 51-0 || 435-5] 51-7 H Jo.e0 09-46 || 540-9} 50-9 || 417-3] 51-5 || H
9 0] 10-80 || 543-4] 51-0 || 444-1] 51-7 || H 16 0 07-47 || 541-5| 50-9 || 408-6) 51-5 || H
LOMO) 10-40 || 542-2] 51-0 || 440-0] 51-7 || W aly os» 0) 11-44 || 543-7| 50-8 || 395-8} 51-2 || H
HL eC 09-59 || 541-4} 51-1 || 431-8] 51-8 || W 18 0 11-52|| 546-9} 50-7 || 380-0} 50-7 || H |
120) | 09-56 || 538-9} 51-2 || 436-2] 52-0 || W 19 0O 10.95 || 544-9] 50-4 || 385-4] 50-3 || W
| 20 0 11-49 || 535-5] 50-1 || 398-9] 49.9 || W
13 O | 25 10-90}} 540-9} 51-4 || 415-5] 52-2 D ZieaG 15-64 || 526-8} 49-8 || 413-5| 49-4 || B
14 0 11-00 || 537-9} 51-4 || 421-0] 52.4 D 22 "0 15-47 || 525-2] 49-4 || 416-2] 49.1 || W
tor 70") 10-00 || 538-2| 51-4 || 430-1] 52.4 D Za, 0 16-35 || 523-0} 49-1 || 418-2] 49-0 || W
16 0O 10-94 || 539-8] 51-5 | 431-0] 52-5 D 25 10°80 18-37 || 527-9| 49-0 || 425-0] 49-0 || W
17 0) 10-31 || 542-3} 51-6 | 418-4] 52-6 D 16 17-67 || 526-7| 48-9 || 438-0} 49-3 || W }
ier 10 09-47 || 543-3| 51-7 || 421-0] 52.6 B 2E 0 16-55 || 536-7] 49-3 || 447-7) 49-8 | WE
OF 107 | 10-06 || 541-3} 51-6 || 430-0] 52-5 B 3 a0 13-81 || 539-8} 49-7 || 455-2] 50-4 | W |
20 O | 09-54 || 537-6} 51-5 || 435-8] 52-3 B 4 0 12-31 || 542-5) 50-1 || 462-1] 50-9 | WE
Pil Os 08-99 || 534-2} 51-3 || 431-3] 52-0 H 5 «(0 10-54 || 540-0! 50-7 |} 465-1} 51-5 || W
22° "0" | 10-09 || 529-6} 51-2 || 434-0} 52-0 || H 6 0 10-51 || 539-5| 51-0 || 462-9} 51-7 || H
23° 0 12-46 || 528-1] 51-0 || 431-0} 51-9 H 7, 30 09-86 || 537-9| 51-0 || 456-6] 51-4 || H |
ze 10) 10 13-94 || 529-9} 51-1 || 431-3} 52-0 || H 8 0 10-60 || 540-9} 50-8 || 451-5| 51-0 || H |
iat) 14-99 || 532-7} 51-2 || 433-6| 52-2 W 9) +0 07-78 || 538-8} 50-5 || 426-8] 50-5 | H
Zar) 14-41 || 535-7] 51-4 || 433-3] 52-3 || W 10 (0) 07-04 || 532-6} 50-0 || 444-2) 50.0 || H
oF 0 12-98 || 538-7| 51-6 || 437-1] 52-4 || W 11 O 06-09 || 532-7} 49-6 || 440-8} 49.4 | B #
4= 10" | 11-27 |} 539-9| 51-6 || 438-0} 52-5 H L2P eG 05-11 || 531-7] 49-2 || 431-8] 48.9 B
5 0 10-40 || 541-0} 51-7 || 436-7) 52-5 H L
6 0 10-94 || 542-7} 51-8 || 431-6] 52-6 D | 26 13 O || 25 07-81 || 540-7| 47-6 || 438-8] 48-0 || W 7
7 O 10-48 || 543-2} 51-9 || 433.4] 52-8 D 14 0O 08-59 || 539-5] 47-7 || 438-6) 48-1 | W ]
oF 0" 10-33 || 542-9] 52-1 || 431-3] 53-2 B L510 10-13 || 541-4] 47-8 || 439-2} 48-3 | W
OF 30 10-50 || 542-5] 52-2 || 429-9} 53-3 B 16 O 10-06 || 542-7} 47-9 || 440-9) 48-4 || W
10 0 | 10-56 || 542-2) 52-2 || 429-6] 53-3 B 17 O 09-53 || 544-3} 47-9 || 440-7} 48-5 || W
71° %0) | 10-67 || 541-8} 52-3 || 427-9} 53-0 || W 18 0 09-53 || 544-2} 48-0 || 440-4] 48-6 || W 7
2 sO" | 10-65 || 541-5} 52-0 || 425-6} 52-6 || W 19 O 09-15 || 544-6] 48-2 || 441-0] 48-8 B é
| 20 0 09-49 || 542-9] 48-3 || 441-5] 48-9 / B |
13 O | 25 10-21 || 543-0} 51-8 || 424-0] 52-3 || W BT 10 08-45 || 541-0] 48-4 |) 439-9] 49-0 | H |
14 0 09-47 || 542-9| 51-6 || 424-7] 52-0 || W 22 nO 09-27 || 537-0} 48-6 || 439-2) 49-2 || H
tome) 09-96 || 542-3] 51-4 || 426-5| 51-7 || W Peay (0) 11-68 || 533-3] 48-8 || 435-7| 49-4 B
16 0O 10-00 || 543-5] 51-1 || 425-4| 51-4 || W } 27 O O (13-72) (534-6) Bootion (434-2) seeeee ‘
17 O 10-23 || 543-0) 50-9 || 425-8] 51-1 W 1 0 15-67 || 536-0] 49-2 || 432-8} 49-8 B
is 0 09-59 || 543-7} 50-7 || 426-4] 50-8 || W 2 0 16-01 || 536-8] 49-4 || 436-8} 50-2 || H
TS) oO ah 09-69 || 543-8] 50-5 || 427-8] 50-6 B oF 15:20 || 537-7| 49-7 || 447-6| 50-4 || B
20 O 10-53! 541-1) 50-3 || 433-01 50-4 B 4 0 15-20 || 541-9! 50-0 || 453-2! 50-6 || H |
DECLINATION. Magnet untouched, Sept. 21¢—Dec. 294.
Birinar. Observed 2™ after the Declination, k=0-000140. BALANCE. Observed 3™ after the Declination, s—0-000010.
{+ Extra Observations made.
Oct. 224 10h—234 104, Term-Day Observations made.
Oct. 274 0h. The quantities given in parentheses are approximate, and have been used in summations.
Hovurty OBSERVATIONS OF MAGNETOMETERS, OCTOBER 27—31, 1845. 57
Gottingen BIFILAR. BALANCE. | Gottingen BIFILAR. BALANCE. Er:
Mean Time || Drcuina- > -& | Mean Time || Decrina- PS
of Declina- TION. Cor. /Thermo-|| Cor- |Thermo- g 8 of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- z 5
tion Obs. rected. | meter. |} rected. | meter. ||O tion Obs. rected. | meter. || rected. | meter. ||
ad ih. m. i eee Se. Div. g Mic. Div. 3 Gh in m. g ty Se. Div. g Mic. Div. °
1 27 5 0 || 25 15-111) 536-2] 50-0 | 454-9| 50-7 || B | 29 13 O || 25 08.58|| 542-8] 52-6 || 420-5] 52.9 | W
6 0 12-75 || 540-1} 50-1 | 452-0] 50-8 | W 14 0 08-08 || 540-1} 52-6 || 419-8} 52.8 || W
it of) 10-56 || 544-3} 50-2 | 445-7| 50-9 | W 15 0 10-11 | 543-3} 52-5 | 416-1] 52.8 || W
8 0 10-09 || 543-9| 50-3 || 442-8} 51-0 || W 16 0 09-24 || 545-4) 52-5 || 411-2] 52.8 | W
Ph a) 10-00 || 543-7| 50-4 || 441-3] 51-1 | W 17 0 09-39 || 546-6] 52-5 || 411-0] 52.8 || W
10 0 10-03 || 543-2) 50-5 || 441-1] 51-2 || W 18 0 08-41 || 545-9| 52-6 || 413-6) 53-0 || W
le 70 08-52 || 542-5) 50-6 || 437-8] 51-5 || H 19250 09-00 || 545-5} 52-7 || 414-6] 53.2 | B
LZ 0 10-54 || 544-1} 50-8 || 436-0| 51-7 || H 20 0 08-95 || 543-8) 52-8 || 415-8| 53.3 || B
21° "0 08-61 || 541-2) 52-8 || 420-6] 53.4 || H
13 0 || 25 10-38 || 544-1] 51-0 | 437-1] 52-0 || H 22 0 08-31 || 536-3] 52-9 | 421-6] 53.5 || H
14 0 10-36 || 543-7] 51-2 | 434.3) 52-0 || H 23 O 09-86 || 534-6] 53-0 || 420-5] 53.7 || H
15 0 10-36 || 544-0} 51-4 | 432-4) 52.2 | H | 30 0 O 12-45 || 536-8) 53-2 || 421-4] 53.9 | B
16 0 10-41 || 544-6} 51-7 | 431-7) 52-4 | H 10 15-42 || 542-0 | 53-4 || 4299.2] 54.2 | H
iO 10-16 || 544-3) 51-8 |) 429-5| 52-5 | H 2 0 15-78 || 541-4) 53-7 || 424-5} 54.5 || Hi |
i8 0 11-01 || 544-5] 51-9 |) 428-2) 52-7 | H 3 0 14-26 || 542-6) 53-9 || 420-8} 54.8 || H
19> 0 09-64|| 544-8] 52-1 || 425-8| 52-8 || W 4 0 12-89 |) 546-8 | 54-2 || 421-1} 55.2 | H
20 0 09-08 || 543-5] 52-2 || 425-3} 52.9 || W 5 0 11-30 || 547-6| 54-6 || 418-2} 55-3 || B
21 0 08-45 || 540-8} 52-2 | 426-7} 52-9 | B 6 0 11-12} 546-3) 54-7 || 414.8} 55.3 || W
22 0 09-35 || 541-5| 52-4 || 422-8] 53-0 || W 7 0 10-25 || 546-4] 54-6 || 411-2} 55-0 || H
23 (0 11-44 || 538-1} 52-5 || 422-3] 53.2 || W 8 0 10-16 || 546-8) 54-4 | 407-2] 54.5 || W
Zo 0 0 12-89 || 538-9| 52-7 || 424-8] 53:6 || W 9° 70 09-10 || 546-0} 54-0 || 407-5] 54-0 || W
i “0 14-67 || 537-6| 52-9 |) 423-1} 53-8 || W 10 0 09-42 || 546-0} 53-6 || 407-1} 53-4 || W
2 0 13-63 || 540-4] 53-0 || 423-6] 54-0 || W 11 0O 09-24 || 544-0} 53-1 || 408-7| 52-8 || H
3 (0 12-82) 544-7] 53-2 || 422.2) 54.2 || W 12 0 08-80 || 541-0} 52-6 || 412-3] 52-2 || H
4 0 11-89 || 545-3] 53-4 || 421-1] 54-3 ||) W
5 (0 10-94|| 545-6] 53-5 || 419-3] 54-3 || W 13 O || 25 09-42) 542-6| 52-2 || 414-3] 51-7 || H
6° 0 11-14|| 545-3) 53-5 || 416-9] 54-3 || H 14 0 09-73 || 543-7} 51-8 || 413-0} 51-0 || H
viaem() 10-45 || 547-4) 53-5 || 415-7] 54.2 || H 15 0 10-03 || 543-3] 51-3 || 414-8] 50-5 || H
8 0 10-47 || 545-4] 53-5 || 417-3| 54.2 | H 16 0 09-42 || 545-0) 50-8 || 413-5} 50-0 | H
9.0 10-09 || 545-0) 53-5 |) 418-1) 54-2 || H 17 0 09-47 || 547-0) 50-3 || 413-3} 49-5 || H
10 O 09-96 || 545-2] 53-4 || 417-8] 54-1 || H 18 0 08-06} 546-3 | 49-8 || 417-3] 49-0 | H
tr 0 08-38 || 545-0} 53-3 | 417-5| 54-0 || B 19 0 07-94 || 545-6] 49-4 || 419-5] 48-5 || W
£2" “0 03-40 || 537-9] 53-3 || 413-5] 54-0 | B 20 O 07-87 || 544-1] 49-0 || 423-6] 48-0 || W
21 5 07-58 || 538-5| 48-6 || 432-3} 47-5 | B
13 0 || 25 07-27) 548-6] 53-2 || 393-9| 53-9 || B 22 0 07-76 || 532-8} 48-3 | 438-7) 47-5 || W
14 0 08-48 || 542-5] 53-2 | 399-6] 53-8 | B 23 0 09-40 || 530-8} 48-0 || 437-3] 47-7 || W
va 0 09-02 |) 540-9) 53-1 | 404-3} 53-7 | B | 31 0 O 11-57 || 532-0} 48-1 || 439-6] 48-0 | W
16 0 07-05 || 543-4) 53-0 | 408-4] 53-6 || B 1 0 12-62 || 534-6] 48-3 || 443-1] 48-5 || W
7 0 07-79 || 544:0| 53-0 | 407-6] 53-5 || B 2 0 13-46 || 542-1] 48-5 | 439-4] 48-8 || W
18 0 10-85 || 544-3} 53-0 | 403-0] 53-5 || B 3) (0) 12-65 || 544-0) 48-7 | 440-2] 49-2 || W
19 0 09-69 || 543-5} 53-0 || 406-0] 53-5 | H 450 11-64 || 547-1] 49-0 | 437-9] 49-5 || W
20 O 08-55 || 541-1} 53-0 |) 411-5} 53-5 | H ay (0) 11-25 || 547-3] 49-4 || 431-8] 49-9 | W
21 0 07-78 || 537-3] 53-0 || 421-5] 53-5 || W 6 0 11-07 || 546-9| 49-7 || 427-9] 50-2 | H
22 0 08-31 || 532-8} 53-0 || 421-7] 53-5 | H ia0 10-54 || 547-7} 50-0 || 426-4] 50-5 | H
23 0 11-71 || 532-7] 53-0 | 419-3] 53-5 || H ts)» (0) 09-24 || 548-0) 50-0 || 426-4| 50-8 || H
29 0 0 13-09 | 528-2] 53-0 || 423-6| 53-7 || H 9 O 09-42 |) 545-9} 50-0 || 425-7) 50-7 || H
Lome’) 14-51 || 533-3) 53-0 || 424-7] 53-8 || H 10 0 || 25 09-12) 549-1] 50-1 |) 425-6) 50-7 || H
20 15-20) 538-8} 53-2 || 427-5| 53-9 || H 11 Of|) 24 59-27) 532-9| 50-2 || 435-4) 50-7) B
3 0 13-79 || 537-2) 53-2 || 431-1] 54.0 || H 12 0 || 25 01-75] 541-1] 50-3 || 429-7} 50-8 || B
4 0 12-65 || 539-7) 53-3 || 428-6] 54-0 || H
5 0 12-11 || 542-9) 53-3 || 426-5] 54-0 || H 13 0 || 25 03-54]) 531-1] 50-4 | 416-9] 50-8 | B f
6 0 10-18 || 544-8] 53-3 || 423-6] 53-9 || B 14 0 06-68 || 542-8} 50-4 | 403-9} 50-8 || B
70 10-06 || 539-4] 53-2 || 426-1] 53-7 || B 15 0 07-49 || 544-3} 50-3 || 383-1} 50-7 || B
s 0 10-58 | 543-9) 53-1 || 422-7] 53-5 || B 16 0 09-00 || 542-1} 50-2 |) 402-3} 50-5 | B
50 09-06 || 543-2] 53-0 || 423-3] 53-4 || B 17 0 08:75 || 545-2) 50-1 || 411-6} 50-3 || B
10> =O 08-26 || 544-2} 52-9 | 423.5] 53-2 || B 18 0 08-82 || 546-4) 49-9 || 413-1} 50-0 || B
ia ~0 06-97 || 546-1} 52-8 || 419-7] 53-1 || W 19 0 08-83 || 549-9) 49-7 || 409-9} 49-9 || H
12 0 09-05 || 543-5| 52-7 || 420-4] 53-0 || W 20 O 08-65 || 553-5] 49-6 || 409-2} 49-7 | H
DECLINATION. Magnet untouched. Sept. 214—Dec. 294,
BIFILAR. Observed 2™ after the Declination, <=0:000140. BALANCE. Observed 3™ after the Declination, s=0:000010.
MAG, AND MET. oss. 1845.
+ Extra Observations made.
Initial.
POMMnnnsdedddddo sen Mineo ddim eee de dow
58 Hourly OBSERVATIONS OF MAGNETOMETERS, OCTOBER 31—-NoVEMBER 6, 1845.
Gottingen BIFILAR. BALANCE. “ 4 Gottingen BIFILAR. BALANCE. %
Mean Time || Drciina- i. P-:= | Mean Time || DECLINA- z
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2's | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| ¢
tion Obs. rected. | meter. || rected. | meter. || S | tion Obs. rected. | meter. |! rected.| meter. || 5
Gi Mie ean = f Se. Div. o Mic. Div. a dad. By” om. ‘A Se. Div. 4 Mic. Div. e
31 21 0 || 25 07-45|| 547-4| 49-4 || 412-0] 49-3 || W 4 5 O || 25 12-80}) 542-8] 42-0 || 477-0| 43-2
22 O 17-36 || 535-6| 49-1 || 414-4] 49.2 || H 6° 0 11-68 || 545-5 | 42-7 || 466-6) 43-5
ryay (0) 12-60 || 537-0; 49-1 || 411-3} 49.2 || H ip 0) 10-78 || 545-2} 43-0 || 461-5} 43-7
1 0 0 13-25 || 526-6| 48-9 || 427-4| 49-2 || H 8 0 09-86 || 542-3] 43-0 || 457-4] 43-5
x0) 13-52 |) 530-6} 49-0 || 433-3} 49-5 || H 9, OF 05-99 || 535-4| 42-8 || 464-7] 43-3
7) 15-58 || 531-9| 49-0 | 434-1] 49-7 || H 10 OF 03-45 || 529-7| 42-6 || 449-8| 43-0
3440 14-64 || 533-7} 49-2 || 437-3| 50-0 || H 110 02-50 || 531-5] 42-3 || 446-2} 42-6
4 0 14-87 || 534-6| 49-4 || 457-0; 50-0 | H 12> OT 05-33 || 545-2) 41-9 || 424-5] 42-1
5 Ot 02-82 || 532-6} 49-6 || 474-3) 50-2 | H
64,107 10-23 || 537-2} 49-7 || 481-5] 50-3 | B 13 0 |} 25 08-14}} 535-8] 41-7 || 406-4] 41-9
7120 11-71 || 534-9| 49-8 || 469-4| 50-5 || B 14 0 07-37 || 540-2| 41-5 |) 418-8] 41-7
8 0 05-60 || 523-8} 49-9 | 467-1} 50-5 || B 15 0 09-29 || 541-1] 41-3 || 430-7] 41-4
9 Of] 25 02-39 || 526-0} 49-9 | 467-2] 50-3 | B | 16 0 07-87 || 540-7} 41-0 || 435-2] 41-1
10 0 || 24 59-19] 515-4] 49-9 || 449-8] 50.4 || B 17 O 12-80 || 542-3} 40-7 || 434-2} 40-8
11 O |){25 01-73] 529-6| 49-9 || 446-2) 50-3 | W 1870 07-87 || 548-5} 40-5 || 431-5} 40-5
12050 09-73 || 535-5| 49-8 || 433-9] 50-2 || W 19 0 10-30 |} 551-2} 40-2 | 430-3) 40-2
20 O 10-45 || 543-6] 39-9 | 436-4] 39-8
213 O || 25 08-41] 540-8) 46-7 || 433-1] 46-7 || H 21 0 09-24 || 539-9] 39-7 | 438-6] 39-5
14 0 10-28 || 541-2] 46-5 | 434-3] 46-5 | H 22 0 10-67 || 528-3] 39-4 || 444-3) 39-4
15 Of 17-83 || 544-7| 46-3 || 400-5} 46-5 || H 23° 0 10-97 || 532-9| 39-3 || 442-6] 39-4
16 OF 06-46 || 544-3) 46-2 || 398-5] 46-4 || H a 0° 0 12-38 || 533-8| 39-4 || 445-9} 40-0
17 0 08-59 || 545-9) 46-1 || 406-2) 46-3 || H I (0) 14-94 || 537-9| 39-8 || 444-1] 40-7
ite; (0) 08-88 || 543-2} 46-0 || 413-1] 46-2 || H 2 0 15-62 || 538-6] 40-5 || 451-6] 41-7
19 Of 12-55 || 545-0| 45-9 || 414-5] 46-0 || W a OF 20-77 || 530-4] 41-4 || 476-8} 42-9
20 0 14-84) 530-6| 45-8 || 422-1} 45-9 | W 4 Of 22-47 || 543-4] 42-4 || 518-0} 43-9
21 0O 16-35 || 527-3} 45-8 || 437-8| 45-8 || B 5 OF 20-97 || 543-1] 43-2 || 573-1| 44-7
22 0 13-41 || 530-9| 45-7 || 433-3) 45-6 || W 6 Ot 21-50 || 538-1} 43-9 | 600-6} 45-2
23 (0 13-29 || 530.6] 45-6 || 435-7| 45-7 | W 7 Of] 25 12-25 || 532-3] 44-4 | 618-8] 45-5
a, -ORRO 14-10} 530-5} 45-6 || 435-7| 45-7 | W 8 Of! 24 58-49 |) 526-7| 44-6 || 478-6| 45-7
10 15-49 || 533-5] 45-6 || 441-7] 46-0 || W 9 Of] 25 05-32|) 532-5| 44-7 | 536-8) 45-8
2 0 15-54 || 537-3| 45-8 || 447-4] 46-3 || W 10 O 09-91 || 538-2} 44-7 || 505-5) 45-7
3. (0 12-82 || 535-1] 46-0 || 458-7] 46-7 | W dis FO 09-59 || 539-5] 44-7 || 477-6} 45-5
4 0 11-71 || 543-2| 46-5 |) 459-6] 47-2 || W 12) 0 10-09 || 540-6] 44-5 || 462-9} 45-5
a 10 11-00 || 542-7| 46-8 || 453-6] 47-3 || W
6 10 10-31 || 542-8) 46-9 || 449-0) 47-4 | W 13 O || 25 10-95]] 540-5] 44-5 || 458-1} 45-5
7 0 10-03 || 542-6] 46-8 || 444-7) 47-2 || H 14 0 11-07 || 539-7| 44-5 || 458-3} 45-5
8 0 09-39 || 543-4! 46-7 || 440-6] 46-7 | H 15 0 10-83 || 541-2} 44-5 | 458-2] 45-5
i) () 07-29 || 542-7| 46-3 || 437-6] 46-2 || H 16 0 11-05 || 543-4|] 44-7 || 458.9} 45-7
10 O 05-27 || 538-0} 45-9 || 439-2] 45-7 || H 7p Ui 10-77 || 544-2] 44-8 || 460-1] 46-0
Wa (0) 06-61 || 539-0} 45-5 || 426-4} 45-2 | B LSC 10-47 || 544-7| 45-0 || 459-0} 46.2
12 0 05-87 || 539-9} 45-1 || 428-2] 44.6 || B 19 0 09-82 || 545-7| 45-4 || 458-1| 46-6
20 0 09-62 || 545-9} 45-8 || 458-8} 47-0
13 O || 25 07-47 || 540-4] 44-6 | 432-1} 44.0] B } 21 O 09-22 || 540-1} 46-2 | 461-6] 47-4
14 0 10-23 || 538-8) 44-1 || 437-7] 43-4 || B 22) #0 09-69 || 535-0} 46-6 || 458-6} 47-7
15 0 09-15 || 538-3] 43-5 | 441-6] 42-8 | B 23) ©0 11-46 || 532-6] 46-9 || 453-6] 48-2
16 0 10-01 || 539-3| 43-0 || 446-1] 42-2 || B 6 OO 12-95 || 531-6] 47-4 || 449-6| 48-8
LO 09-39 || 540-4] 42-4 || 446-3) 41-6 | B | iO 13-77 || 532-9} 48-1 || 449-6] 49-6
SiO 09-42 || 540-3] 41-9 || 448-8} 41-0 | B 2 0 13-56 || 537-5] 48-9 || 445-4] 50-4
195510 09-03 || 542-5| 41-4 || 449-5; 40-6 | H 3 0 12-58 || 542-4) 49-7 | 444-0] 51-3
20 0 09-13 || 538-3| 40-9 || 452-9| 40-2 || H | 4 0 11-39 || 544-8] 50-4 || 438-4} 51-9
21 0 08-39 || 535-0} 40-5 || 454-1 | 39-6 || W | a) LO 10-92 |} 545-1} 50-8 || 432-4] 52-2
22 0 08-03 || 531-5) 40-1 | 461-2) 39-3 || H 6 0 10-30 || 545-5| 51-0 | 426-2) 52-5
23 0 11-54 || 530-2; 39-8 || 454-0} 39-1 | H TW 10-13 || 544-7] 51-2 | 424-6] 52-5
4 0 0 13-41 || 531-6| 39-7 || 449-1} 39-3 || H 8 70 10-00 || 545-0} 51-4 || 423-0] 52-6
10 15-29 || 536-7| 39-6 || 452-8} 39-7 | H } 90 09-69 || 542-9} 51-6 || 421-6] 52-6
20 15-41 |) 540-6| 39-8 | 464-8} 40-5 || H | 10 O 08-90 || 544-8} 51-6 || 419-2) 52-3
3) (0) 14-26 || 542-0} 40-4 | 471-5) 41-3 || H UE) <0) 09-42 || 545-2) 51-6 || 415-2} 52-6
£10 12-02 || 543-4) 41-2 || 474-1] 42-3 | H 12 0 10-03 || 543-8! 51-7 || 415-1) 52-7
DECLINATION. Magnet untouched, Sept. 214—Dec. 294.
BiFiLar. Observed 2™ after the Declination, k=0-000140. BaLaNnce. Observed 3™ after the Declination, s=0:000010.
t+ Extra Observations made.
sa ac
Hour.Ly OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 6—12, 1845. 59
Gottingen BIFILAR. BALANCE. | Gottingen BIFILAR. BALANCE. * we
Mean Time |} Ducurna- > 5 Mean Time || Decuina- eae
_ of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-|| 2°g ]] of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 3 ‘2
tion Obs. rected. | meter. || rected. | meter. 5 ~] tion Obs. rected. | meter. |! rected. | meter. || =~
Ge. =m. kd “A Se. Div. y Mice. Div. ° m. ° , Sc. Div. ° Mic. Div. °
6 13 O| 25 10-09|| 542-0} 51-7 | 413-9] 52.6 B 0 || 25 09-73) 541-2|) 44-9 || 435-1] 44.7 | W
14,0 10-43 || 542-9] 51-6 || 412-7) 592-5 B 0 12-04 || 538-8| 44-8 || 433.8) 44.7 | H
; tor 0 10-03 |) 542-8} 51-6 || 413-2] 592.4 B 0 12-42 || 539-4| 44-7 || 432.5] 44.7 | H
HGy 10 12-18 |) 543-9) 51-5 || 409-2] 52.3 B 0 14-46 || 542-5| 44-7 || 434.3} 45.0 | H
ie 0 10-28 || 546:8| 51-5 | 393-6) 59.3 B 0 14-67 || 541-0] 44-7 || 438.2} 45.2 | H
| 18 0 08-14 || 545-9| 51-4 | 399-6| 592.2 B 2 0 13-83 || 542-9} 44-9 || 441.0) 45.5 || H
19 0O 08-34 || 548-4] 51-3 || 400-9] 52.2 || H 3. (0 13-12) 545-0) 45-1 | 438-9] 45.7 || H
20 O 09-76 || 553-9| 51-3 || 407-8] 52.2 || H 4 0 11-68 || 545-8} 45-4 || 441-6] 46.2 | H
zie 50 13-91 | 535-1] 51-4 || 417-0] 52.2 || W 5 60 10-03 | 547-9} 45-8 || 443-9] 46.5 || H
22) 0 15-31 || 528-3] 51-4 || 419-3] 59.1 H 6 0 10-90 | 543-9] 46-1 || 444-9] 46.8 B
23. 0 17-04) 532-2} 51-4 || 416-6] 59.0 || H Gn0 07-10) 541-9] 46-3 || 447-3] 47-0 | B
1 7 0 O 17-86 || 531-9} 51-5 || 420-4] 592.3 || 8 0 11-00) 543-2} 46-5 || 447.2} 47.2 B
1 0 18:35 || 532-7) 51-7 || 425-1] 592.5 || H 0 08-75 || 543-4| 46-7 || 447.3] 47.4 || B
2 0 19-31 || 535-6] 51-9 || 426-9| 592.7 || H 0 08-09 || 541-3] 46-8 || 443-7] 47.5 B
3 0 17-33 || 539-0} 52-3 | 435-5) 53.3 || H Ot 00-72 || 541-3] 46-9 | 434.4| 47.5 || W
4 0 16-48 || 539-4] 52-5 || 438-4] 53-5 || H 0 06-39 || 542-6} 47-0 || 430.5| 47-7 | W
a 10 15:07 || 535-2} 52-7 || 451-3) 53.6 || H
6 0 14-70 || 530-3| 52-8 || 468-1) 53.4 B ot 25 12-89] 544-8| 47-0 | 417-1| 47-7 | W
0 11-68 || 531-2| 52-7 || 472-6| 53.2 B 0 08-29 || 550-1} 47-1 || 389-9| 47-8 | W
ro! (0) 09:05 || 538-7| 52-6 || 459-3} 53-0 B 0 05-90 || 539-5] 47-2 || 388-8) 47-8 | W
9 40 08-48 || 536-5) 52-4 || 450-3] 52.9 B 0 07-27 || 546-4] 47-2 || 385-7] 47-7 | W
10 O 07-82 || 539-5) 52-3 | 439-8| 52.9 B 0 05-52 || 543-3] 47-1 || 394.9| 47-7 || W
is 0 03-04 ]) 541-3] 52-3 || 423-3) 52.8 || W 0 07-55 || 546-0] 47-1 || 405.0| 47-6 | W
12.0 04-71 || 532-8] 52-3 || 419-4] 52.8 || W 0 07-27 || 548-3} 47-0 || 408-5) 47-5 B
0 08-06 | 545-7} 46-9 || 410-5] 47-2 B
13 0 || 25 10-07]) 542-0) 52.2 || 407-5! 52.7 |. W 0) 08-88 || 540-7] 46-7 || 412-3] 46-9 || H
14 0 10-28 |} 540-0} 52-1 |) 410-1} 52.6 | W 0 09-64 || 537-5| 46-5 | 415-6| 46-7 || H
15 0 11-34 || 541-2) 52-0 || 410-8} 52.5 || W 0 11-54]) 535-1] 46-3 || 416-0} 46-6 || H
16 O 12-31 || 543-8) 52-0 | 411-5} 52.4 || W 0 13-56 || 536-5] 46-2 || 419.4| 46-6 B
7 20 12-08 || 540-2} 51-9 || 411-1| 52.3 || W 0 14-70 || 538-2] 46-4 || 497-4| 47-0 | H
13; +0. 11-98 || 543-9] 51-8 || 395-1] 52.3 || W 0 13-77 || 542-5] 46-7 || 433.9] 47-5 | H
19 O 09-29 || 544-3} 51-8 || 403-1] 52.3 B 0 13-79 | 544-3] 47-0 || 441-8| 48.0 B
20 O 08-38 || 540-4} 51-8 || 408.4] 52.3 B 0 11-77 || 542-5) 47-3 || 444.0} 48-5 || H
Zin 50 08-23 || 537-3] 51-8 || 414-0] 52-3 || H 0 12-22) 541-5| 47-7 || 442-9| 48-5 | H
22 .0 09-35 || 536-4) 51-8 | 415-5! 52.3 | H 0 06-14 |) 542-5| 47-8 || 444.4] 48.5 | W
2a) 0 12-29 || 534-3] 51-8 || 414-4] 52.3 B 0 09-39 || 544-8] 47-8 || 435-4] 48-5 || W
8 0 O 13-99 || 535-1] 51-9 || 414-9] 52.5 || H 0 09-27 || 543-9] 47-8 || 433-7| 48-5 | W
1 P10} 15-41 || 538-4} 52-0 || 416.3} 52.7 || H 0 08-82 || 544-4] 47-7 || 431-5] 48-3 | W
2 50 14-85 || 540-0} 52-1 | 418.6] 52.8 || H 0 06:73 || 545-7) 47-6 || 427-8| 48-0 | W
de 20 12-92 || 541-5) 52-2 | 496.9) 53.0 | H 0 08-58 || 544-4| 47-3 || 421-3] 47-6 | H
4 0 11-10 |) 545-0} 52-3 || 427.6! 53-0 B 1X0 09:49 || 543-9} 47-0 || 420-3) 47-2 | H
a) 0 11-19 || 543-9} 52-4 || 424.3] 53.0 || W
G40 10-51 || 543-8] 52-5 || 422.8) 53.0 | W 13 O | 25 09-22)) 543-1| 46-7 || 426-5] 46-8 | H
(AY) 10-11 }| 542-1] 52-4 || 429.0| 52.9 | W 14 O 09-49 || 543-8} 46-3 || 425-2) 46-4 || H
s <0 10-21 |) 543-2] 52-3 || 420.2] 52.7 || W 115) 10) 09-73 || 544-:0| 46-0 | 4256)! 46-0 | H
9 O 09-56 || 544.2} 52-2 |) 419.1] 52.5 || W 16 0 10-67 || 542-3) 45-7 || 427-0| 45-6 | H
10 O 09-67 || 544.4] 52-0 || 417-4] 52.3 || W iy (0) 11-07 || 541-3) 45-4 || 425-1] 45-2 | H
(0) 09-22 |) 543.1] 51-8 || 415.5| 52.0 || H 18 0 09-62 || 544-2} 45-0 || 423-0] 44-8 | H
P27 (0) 09-73 || 542-6) 51-6 |) 414.0] 51-7 || H 19 O 08-80 | 543-8| 44-7 || 427-5) 44.5 | W
20 0 08-43 || 542-6} 44-4 || 430-6) 44-2 | W
9 13 O | 25 09-69) 542-6] 47-5 || 425.7] 46.9 B 21 20 08-11 || 5389-4] 44-1 | 434.3) 43-9 ] B
14. 0 10:09 | 542:0| 47-1 || 426-2) 46.5 B 22) 10 18-93 || 536-8] 43-8 || 435.4] 43-6 || W
ET) 09-56 || 542.4) 46-7 || 425.8] 46-1 B 23 0 11-10 |} 535-7] 43-6 || 438-3] 43-5 || W
16 0 10-90 || 541-9] 46-3 || 428.4] 45.7 B 12 0 0 12-96 || 538-8] 43-6 || 442.4) 43.7 | W
7) 09-76 || 543-7} 45-9 || 426-9} 45-3 B 0) 13-46 || 541-7) 43-7 || 443-9] 44-1 || W
18 0 08-65 || 544-6] 45-6 || 430-0} 45-0 B (0) 13-81 | 543-6] 43-9 || 445-4| 44-6 B
19 O 08-82 || 543-6| 45-3 || 432-4| 45.0 | H 5) (0) 12.45 || 545-8] 44-3 || 447-1) 45-1 | W
20.0 09-47 || 545-0| 45-0 || 432-4] 44.8 || H 4 0 11-89 || 546-2] 44-7 || 445-4| 45-4 || W
DECLINATION. Magnet untouched, Sept. 214—Dee. 294.
p BiFlLak, Observed 2™ after the Declination, k—0-000140. BALANCE. Observed 3™ after the Declination, k=0:000010.
+ Extra Observations made.
60 HouRLY OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 12—17, 1845.
~ an
Gittingen BIFILAR. BALANCE. * | Gottingen BIFILAR. BALANCE. ° a
| Mean Time |} DEcLina- £5] Mean Time || DEcuINa- z 3S
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 23'S | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 3°
tion Obs. rected. | meter. || rected. | meter. 5 | tion Obs. rected. | meter. || rected. | meter. 5 _
ral Tee wet | Se. Div. & Mic. Div. 2 GB ine teris || G2 Se. Diy. ° —‘|!Mie. Div. 2 a
12 5 O |] 25 10-36) 547-9] 44-9 || 444-5) 45-6 || W] 14 13 0 || 25 10-36|| 545-0] 41-9 || 434.6] 42-4 | H
6 0 10-70 | 544-7} 45-0 || 443-9} 45-7 | H 14 0 08-29 || 543-2) 41-7 || 433-8] 42-1 | H
A 10-87 | 545-9] 45-0 || 440-9] 45-7 || H 15" 10 10-09 || 545-0} 41-5 || 432-5) 41-8 || H
8 0 10-01 | 546-6| 45-0 || 439-2} 45-5 | H 16 0 10-21 || 546-4] 41-2 |) 431-8] 41-4 | H
YW 09-76 || 546-6| 44-8 | 436-6] 45-2 || H Lit, 70 09-56 |) 546-1} 40-9 || 431-7] 41-0 | H
10770 06-70 || 540-6] 44-7 || 442-4) 45-0 | H 18) 30 09-32 || 546-1} 40-7 |) 432-1] 40-7 | H
11 O 09-39 | 543-2| 44-4 || 436-9] 44.5 | B 19 0 09-02 || 545-7} 40-4 || 433-6] 40-3 | W
1250 09-26 | 542-4| 44-1 || 436-9} 44-2 || B 20 0 09-06 || 543-6| 40-1 || 435-3] 40-0 | W
| 21 O 09-15 | 540-5] 39-8 || 439-1| 39-7 | B
13. O || 25 09-69 || 541-9] 43-8 || 436-2] 43-8 | B 22 0 09-93 || 538-7] 39-5 || 438-7| 39-5 || W
14 0 09-76 || 542-5] 43-5 || 436-9} 43-5 || B 23 0 11-66,|| 537-9| 39-4 || 433-9] 39-4 | W
15 0 10-03 | 542-6] 43-2 || 436-5] 43-1 | B |15 O O 12-89 || 539-1] 39-3 || 437-4] 39-5 | W
16 0 09-22 | 544-1] 42-9 || 436-8) 42-8 || B 0 12-92 || 542-5} 39-4 || 443-4] 39-9 | W
eo 08-85 || 545-3] 42-6 || 436-5] 42-5 || B 2 0 11-86 || 544-6} 39-6 || 446-2) 40-3 | W
18 0 08-48 || 546-0] 42-3 |) 435-7] 42.2 | B 3 0 10-72 || 546-3] 39-8 || 448-4] 40-8 | W
19 O 08:77 || 544-9] 42-0 || 435-2} 42-1 | H 4 0 10-45 || 547-7| 40-2 || 447-6} 41-3 | W
20 O 09-05 || 544-0} 41-8 || 435-8] 42-0 || H a 710 10-58 || 548-7] 40-6 || 444.3) 41-7 | W
Pat (0) 09-02 || 541-4) 41-7 || 439-9] 41-7 |] W 6.0 10-27 || 548-8) 41-0 || 442-7| 42.2 | H
22 0 09-40 || 537-7| 41-5 || 440-8] 41-5 || H 7 0 10-00 || 549-4] 41-5 || 440-3] 42-7 | H
23 0 10-41 || 537-5] 41-4 || 441-5] 41-5 | H 8 0 09-53 | 548-8] 41-8 || 437-8] 43-0 || H
3! Oe 30 12-26 || 538-4] 41-3 || 443-6] 41-6 || H 9 0 09-42 |) 546-5] 42-1 || 438-9] 43-5 || H
1 O 10-80 || 541-1} 41-3 || 447-6] 41-9 || H 10 0 09-12 || 547-0} 42-4 || 437-1] 43-7 | A
2 0 12-63 || 543-8] 41-6 || 451-1] 42.4 | H 11 *0 08-92 || 546-3] 42-8 || 437-9] 44:0 | B
3 0 11-98 || 545-7] 42-0 || 453-4] 43-0 || H 120 08-41 || 548-0] 43-1 || 435-9] 44-3 ] B
ak (0) 11-30 || 547-0] 42-3 || 451-4] 43-4 | H
5 0 11-14 |) 546-6| 42-6 || 452-0] 43-7 || H | 16 13 0 || 25 08-28}; 545-2] 46-2 || 423-3] 46-8 | W
O70 10-06 || 548-4} 42-9 || 448-4] 43.9 || B 14 0 09-20 || 544-4} 46-1 | 424.1] 46-7 | W
tho) 09-67 || 547-5] 43-1 || 445-1] 44-0 || B 15 0 09-84 |) 542-3} 46-0 || 420-1] 46-5 || W
8 0 09-15 || 547-3) 43-2 |) 443-9] 44-1 || B 16 0 10-48 || 549-9} 45-9 || 413-9] 46-3 | W
9 0 08-95 || 547-5} 43-3 || 443-0] 44.2 || B 17-40 08-50 || 551-7| 45-7 || 414-3] 46-1 || W
10 0 08-95 || 547-1] 43-4 || 441-5] 44.2 || B 18 0 07-74|| 554-5| 45-6 || 412-7] 45-9 | W
Mhoes(G) 08-88 || 546-9} 43-4 || 440-8] 44.2 | W 19° 0 09-22 || 557-6] 45-4 || 410-0} 45-8 | B
12 0 09-29 || 545-3} 43.3 |) 442-4] 44.2 || W 20 *0 09-62 || 555-2] 45-3 || 409-0| 45-7 | B
21 0 10-36 || 544-4} 45-1 | 410-0} 45-5 || H
13. 0 || 25 09-53 || 545-6| 43-3 || 441-0] 44-1 || W 22: O07; 16-79 || 510-9} 45-1 |) 422-9] 45-5 || H
14 0 09-79 || 545-4] 43-3 |) 439-1] 44-0 || W 23 SOT 24-12 || 528-1] 45-0 || 411-3] 45-5 || B
Uj 0 10-06 || 545-5} 43-2 |) 437-9] 43-9] W117 0 O 19-14 | 526-5] 45-0 || 422-5] 45-5 || B
16 0 09-74 || 544-8] 43-1 || 435-5] 43-6 || W 1 40 21:97} 524-5) 45-1 || 433-4] 45-7 | B
iO 08-92 || 544-7} 42-9 || 435-2} 43-3 || W 2 0 19-02 || 537-5] 45-2 || 442-3) 45-7 | H
150 09-62 || 546-6] 42-6 || 433-9} 42-9 || W 3 0 19-75 || 548-5} 45-2 || 460-9] 45-8 || H
IG) (0) 09-00 || 545-3| 42-3 || 434-2] 42-5 | B 4 0 10-27 || 540-6| 45-3 || 489-5] 45-8 || H
20 O 08-99 || 543-7] 42-0 || 433-9] 42.0 || B 5 0 15-64 || 538-7] 45-3 || 467-1] 46-0 || H
21 O 09-08 || 541-6] 41-7 || 435-8] 41-6 || H 6 0 11-28 || 542-7| 45-4 || 461-0} 45-9 || W
22) 0 09-66 || 538-6| 41-4 || 437-5] 41-4 | H 7 Of|| 25 09-57|| 536-1} 45-3 || 512-9] 45-8 | W
23 0 11-48 || 538-9| 41-2 || 436-8] 41-3 || H 8 Of|| 24 58-82]| 526-1] 45-3 || 516-8] 45-8 || W
14 0 O 13-27 || 539-5] 41-0 || 441-0] 41.4 || H 9 Of|| 25 07-32)|| 522-3) 45-3 || 502-9] 45.8 || W
0 13-79 || 542-6] 41-1 || 448-0) 41-6 || B 10 Of 05-82 || 538-5| 45-3 || 455-1| 45-7 | W
2 0 12-51 || 543-9| 41-2 || 449-8) 42-0 || H Bi 06-12) 535-9} 45-0 || 432-2] 45-5 | H
a “0 11-17 || 543-6] 41-5 |) 452-4] 42-4 | B 12 0 07-94 || 533-8] 44-8 || 402-7| 45.2 | H
4 0 10-33 || 544-0} 41-8 || 451-2) 42-8 | B
a 0 11-03 || 546-7} 42-1 || 450-0| 43-2 | H 13. 0 || 25 07-69 || 537-1| 44-6 || 402-4] 44-9 | H
6 0 10-72 || 549-6| 42-4 || 441-6] 43-4 | W 14 0 08-75 || 533-9] 44-4 || 416-2] 44-5 || H
7 Y 10-40 || 547-8} 42-5 || 439-1] 43-4 || W 15 0 09-82 | 536-0| 44-1 || 421-7] 44.2 | H
3 08:73 || 547-5] 42-5 || 437-7) 43-3 | W 16°90 10-13 || 536-5] 43-8 || 428-6] 43-8 | H J
970 09:27 || 546-5] 42-5 || 437-1) 43-2 | W 7 30 09-03 || 538-5] 43-6 || 432-3] 43-5 || H
LOO 09-06 || 546-2} 42-4 || 436-1] 43-0 | W 18990 09-05 || 538-9] 43-3 || 431-8] 43-2 | H
11 O 09-46 || 544-8} 42-2 || 436-4) 42-9 || H 19| +0 09-08 || 538-8] 43-0 || 435-1] 43-0 | W
3) 10) 09-06 || 546-1} 42-0 || 435-0] 42-6 || H 20) "0 09-66 || 538-4! 42-8 || 438-0] 42-8 Wg
DECLINATION. Magnet untouched, Sept. 214—Deec. 294.
BIFILAR. Observed 2™ after the Declination, k = 0-000140. BALANCE. Observed 3™ after the Declination, = 0:000010.
+ Extra Observations made.
HovurLy OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 17—22, 1845. 61
Gottingen BIFILAR. BALANCE, |e Gottingen BIFILAR. BALANCE. Ble
Mean Time || DECLINA- 2-8] Mean Time || Decuina- | a
of Declina- TION. Cor- |Thermo-] Cor- /Thermo-| 2°2 | of Declina- | TION, Cor- /Thermo-|} Cor- /Thermo-|] 2 ‘2
tion Obs. rected. | meter. || rected. | meter. lo” tion Obs. | rected. | meter. || rected. | meter. || 6 ~
ia) bs, am. C ‘ Se. Div. Si Mic. Div. 2 | de athe am. , Sc. Div. Go Mie. Diy. °
17 21 0 | 25 09-76)| 538-0| 42-6:|) 436-9) 42-6 | B | 20 5 O | 25 08-88|| 543-5] 46-5 || 431-5; 47-0 || B
22 0 | 09-20 || 534-9] 42-5 || 434-4} 42.5 | W 6 0 | 08-12 || 545-9| 46-5 || 429-2} 46-8 | W
23 0 11-54 || 535-4] 42-4 || 428-8) 42.5 | W Ol) 08-36 | 544-5| 46-3 || 428-3) 46-5 || W
18 0 0 71-28 || 535-0} 42-3 || 429-6] 42-5 | W 8 0 | 08-00 || 542-2) 46-1 | 429-6} 46-3 | W
ro 12-73 || 536-3] 42-3 || 436-3] 42-7 | W 0) 07-64 || 543-2) 45-8 || 430-3] 46-0 || W
Za) | 15-34 || 540-0} 42-4 || 444-7) 42.8 | W 10 O 07-54| 543-7] 45-6 || 427-0| 45-7 | W
Pe): || 12-85 || 532-9) 42-5 || 451-1] 43-1 | W 11 O 08-01 | 541-8} 45-4 | 425-8| 45.5 | H
4 0 10-74 || 539-0] 42-7 |) 461-0} 43.4 / NAY 12 0 07-51 | 541-5] 45-1 |) 426-2} 45.2 || H
5 0 || 25 11-79] 535-9] 42-9 | 470.4] 43.8 | W |
6 Of| 24 54-32] 532-3) 43-1 472-2) 44.2) H 13 0 || 25 07-52] 540-2} 44-9 || 426-7| 45-0 | H
7 0 || 25 03-43|| 539-8} 43-5 || 464-7} 44.5 | H 14 0 08-03 | 540-8} 44-7 | 426-0; 44.7 || H
8 0| 09-62 || 545-2| 43-7 || 450-5| 44-7 | H Nes 0) 08-01 | 541-8| 44-4 || 427-1] 44.5 || H
9 0 08-18 || 544-2| 43-9 || 445-0/ 45-0 | H 16 0 08-28 | 542:3|) 44-2 || 428-4) 44.2 | H
10 O || 25 07-37.|| 538-2| 44-1 || 446-0} 45.1 | H Ii) 07-87 || 541-5| 44-0 || 431-2| 44-0 || H
11 4ft| 24 54.57 |) 549-8 44.3 || 434-1} 45-2 | B 18 0 08-52] 541-7| 43-7 || 431-0} 43-7 || H
12 Of| 25 03-43] 535-0) 44-5 | 429-4| 45-4 || B 19 0 07-42 || 542:7| 43-5 || 431-1| 43-4 | W
20 O 07-37 || 542:3| 43-2 || 430-3] 43-1 || W
13 0 || 25 06-06|| 541-2} 44-7 | 414-2} 45.6 || B AM 07-47 || 541-3| 42-9 | 431-3] 42-8 || B
14 0 05-38 || 539-2) 44-9 | 417-2! 45-8 || B 22 0 08-29 || 540-7| 42-7 || 432-5) 42-6 || W
15 0 13-39 || 542-3) 45-0 || 403-7| 46-0 || B 23 0 08-73 || 538-1) 42-6 | 433.2| 42.5 || W
16 0 06-19 || 544-6] 45-2 |) 403-6| 46-1 13 || Bil 0) 10-00 || 534-1) 42-4 || 433-6] 42-5 || W
yO 08-61 || 540-9| 45-4 || 416-9) 46.3 | B 0 10-97 || 539-7) 42-4 || 434.0] 42-5 || W
18 0 08-82 || 543-2} 45-6 || 422-4] 46-5 | B 2 0 10-51 || 541-8} 42-4 || 434-0} 42-7 | W
19 0 10-25 || 544-7) 45-8 || 420-3} 46-8 || H 3. 0 09-35 || 541-1] 42-6 || 439-6] 43-0 || W
20 O 11-14|} 538-8} 46-0 || 423-8| 47.2 || H 4 0 07-04 || 539-3] 42-8 | 445-0] 43-4 || W
Zl 0 12-35 || 532-3] 46-3 || 428-0| 47-4 || W 5 0 07-82 || 547-5) 43-0 | 439-4) 43-6 || W
22 0 13-27 || 531-9| 46-6 || 426-3) 47.5 || H | 6 0 08-08 || 546-8} 43-0 || 439-5} 43-7 | H
23 0 08-53 || 535-7) 46-8 || 430-3) 47-7 | H nO) 07-91 || 545-2) 43-0 | 437-3] 43-5 || H
m9 0 0 10-47 |} 540-2) 47-1 || 435-8} 47.9 || H 8 0 04-64 || 544-8} 42.8 | 434.6] 43-3 || H
0 11-84] 538-8] 47-2 || 435-5) 48-2 || H 2 Y 07-54 || 546-9] 42-7 | 431-0) 43.0 | H
2 8 11-21 || 542-9| 47-4 || 436-2} 48.5 | H 10 O 07-81 || 545-0] 42-5 || 428-0| 42.6 || H
Bee 11-61 |} 540-9} 47-7 || 443-8] 48.7 | H 11 O 07-67 || 544-1| 42.2 || 428.3) 42.2 | B
4 0 10:90 || 534.3] 47-9 || 446-5} 48-9 || H 12 0 07-54 || 543-9} 41-9 | 428-7] 41-8 | B
5 Of 08-46 || 530-7) 47-9 || 443-5} 48-7 | H
GO 06-26 || 541-3] 47-9 || 441-3} 48-7 | B 13 0 || 25 08-03 | 543-7| 41-6 || 429.2) 41-4 | B
ie) 07-87 || 543-0} 47-9 || 434-1} 48-6 | B 14 0 07-98 || 543-2} 41-2 || 429-9) 41.0 | B
8 0 08-45 || 543-7] 47-8 || 429-3] 48-5 || B 15 0 09-37 | 544-5] 40-9 || 429-5] 40-6 || B
9 0 04-76 || 542.2| 47-7 || 428-7] 48-4 || B oe (0) 08-05 | 544-3} 40-5 | 431-1] 40-2 | B
10 0 08-21 |} 541-2) 47-7 || 426-3} 48-3 | B 17 O 07-67 | 545-4} 40-2 | 431-6] 39-8 || B
1 0 04-69 || 537-5] 47-6 || 424-3] 48.2 || W 18 0 08-56 || 544-1] 39-8 || 433-7) 39-5 || B
12 0 07-11 || 538-9| 47-5 | 422.2|) 48.1 | W 19 O 08-14] 547-0] 39-5 || 431-9] 39.2 | H
20 O 07-44 544-6] 39-2 || 432-5) 38-8 || H
13 0 || 25 08-11} 540-0] 47-4 || 420-8] 48-0 | W 21 0 08:03 | 541-0; 39-0 |) 436-4) 38-6 || W
14 0 08-77 || 546-1] 47-4 | 412-6| 47-8 | W 22 O 09:08 | 540-1) 38-7 | 436-6) 38-4 | H
15 0 05-63 | 545-5] 47-3 || 403-6| 47-7 | W 23 0 11-10} 538-9} 38-5 || 438-1] 38-3 || H
16 0 06-26 || 541-3) 47-2 | 407-8) 47-6 | W]22 0 0 11-77 || 526-6| 38-5 || 444.2} 38-5 || H
17 0 06-95 || 545-5] 47-1 || 408-8} 47-5 || W i 0 12:33 || 540-7} 38-7 || 449-8} 39.2 | H
18 0 08-25 || 544-9} 47-0 | 410-7} 47-4 || W 2 0 11-44 || 544-2} 39-1 | 452-7| 40-0 || H
19 0 11-00} 541-1| 46-9 || 410-8} 47-2 || B 3 0 11-34 |) 545-2} 39-7 || 455.4} 40-7 || H
20 0 10-00 | 545-6} 46-8 || 409.2} 47-1 || B 4 0 09-86 |) 544-2} 40-3 || 457-3} 41-5 || H
21 0 10-77 || 543-6| 46-7 || 411-7} 47-0 | H 5 0 08-31 || 542-3} 40-9 | 454-9} 42-0 || H
22) 70 11-01 || 539-4] 46-5 || 415-7| 46-8 || H 6 0 08-80} 546-9} 41-2 | 449-4) 42-1 | B
23 0 12-04|) 536-0] 46-4 || 416-0] 46-6 || H a 0 08-48 || 547-2] 41-3 | 445-8] 42-1 | B
20 0 0 12.45 || 536-3) 46-3 || 417-0} 46-6 | H | Se 02-59 || 545-3) 41-3 | 443-7] 42-0 | B
i <0 11-24) 538-4| 46-3 | 420-9] 46-6 || B 9 0 06-50 | 543-6] 41-2 | 444-1] 41-9 | B
Zz 0 11-10|} 537-0} 46-3 || 425.7| 46-8 || B 10 0O 07-55 | 540-8) 41-1 | 443-1] 41-7 | B
3) (0) 10-92}) 541-5} 46-4 || 429.2] 46-9 || H 11 0 06-81 | 542-4) 41-0 | 440-7] 41-6 | W
4 0) 09-69 | 542-5! 46-4 |! 431-2! 47-0 || H 12 0 07-60 || 542:0| 40-9 || 438-5| 41-5 | W
DECLINATION. Magnet untouched, Sept. 214—Dec. 294.
BIFILAR. Observed 2™ after the Declination, k=0:000140. BALANCE. Observed 3” after the Declination, s=0:000010.
t+ Extra Observations made.
MAG. AND MET. oBs., 1845. : Q
62 Hour.Ly OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 23—28, 1845.
Gottingen BIFILAR. BALANCE. Fea: Gottingen BIFILAR. BALANCE, | * |
Mca Cire ||| Deus LN Ae Ua A ex vn TAD ml >a
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°35} of Declina- TION. Cor- |Thermo-|) Cor- |Thermo-| 3°
tion Obs. rected. | meter. |] rected. | meter. 5 “1 tion Obs. rected. | meter. || rected. | meter. 5 =
Gh 7) They ia coe Se. Diy. 2 Mice. Div. S ad. ih, ams Oe a, Se. Div. ° Mic. Diy. C
23 13 O || 25 08-01] 543-3] 37-9 || 443-6] 38-2 | H | 25 21 O || 25 08-05|| 545-5] 46-8 || 413-4] 48-2 | H |
14 0 08-36 || 543-4] 37-8 || 444-8] 38-2 | H 22 0 09:05 || 545-8} 47-2 || 410-4) 48-5 || H
15 0 08-41 || 544-2! 37-7 || 440-8} 38-0 | H 230 20 08-75 ||. 544-8) 47-7 || 411-4) 48-9 || H
16 0 08-41 || 545-3] 37-6 || 439-7] 37-9 | H | 26 0 O 09-64|| 545-4] 48-0 || 409-7] 49-3 | H
rf 0) 07-96 || 546-9| 37-5 || 438-8] 37-7 | H ie 0 09-84 | 546-4) 48-4 || 405-7] 49-7 || H
18 0 08-31 || 547-0} 37-4 || 437-0| 37-4 | H 2, 0 09-76 || 549-3} 48-8 || 400-9} 49-9 B
19 4 07-54 || 548-1] 37-2 || 435-4| 37-1 | W 3.0 09-32 || 548-3} 49-1 || 402-1] 50-2 | H
20 O 07-07 || 546-7| 37-0 || 436-9] 36-8 || W 4 0 08-75 || 548-5| 49-4 || 401-1} 50-5 || H
2150 07-13 || 543-:6| 36-7 || 438-4] 36-5 B dD, 0 09-42] 550-1} 49-6 || 399-5) 50-5 B
22 0 08-41 || 541-7] 36-5 || 438-5] 36-2 || W 6 O 08-73 || 548-7) 49-7 || 400-2) 50-6 || W
By (0) 10-88 || 538-9| 36-2 || 436-1| 36-0 | W 7% 0 08-63 || 547-5] 49-8 || 399-4| 50-7 || W-
24 0) 40 12-48 || 537-4] 36-0 || 440-5] 36-0 || W 8 0 07-72 || 548-9} 49-9 || 399-1| 50-7 || W
0) 12-08 || 539-5| 36-0 || 444-7| 36-3 || W 9 0 07-20 || 547-4| 49-9 || 400-0] 50-8 | W
2 0 12-23 || 543-7| 36-2 || 445-2| 36-7 || W 10 O 07-27 || 545-6} 50-0 || 400-7} 50-8 || W
3e a0 11-59 || 545-7} 36-6 || 452-1) 37-3 | W 11 ot 03-57 || 550-6} 50-0 || 394-4] 50-8 || H
4 0 12-15 || 543-6) 37-0 || 460-1] 37-8 || W 12 0 02-86 || 543-5] 50-1 || 388-1} 51-0 || H
ei) 09-46 || 542-6| 37-4 || 462-5; 38-1 || W
6) 70 08-68 || 543-2} 37-5 || 458-3] 38-3 || H 13. O || 25 08-34 || 547-1] 50-2 || 389-1] 51-1 H
a wo 08-75 || 543-3] 37-7 || 454-4] 38-2 || H 14 0 08-23 || 548-1} 50-2 || 387-1) 51-0 || H
8 Ot 05-11 || 537-2| 37-7 || 455-6| 38-2 || H 1d, 0 08-26 || 550-8} 50-1 || 385-0} 50-8 || H
9 0 02-01 || 540-7| 37-6 || 445-5] 38-2 || H 16 0O 07-65 || 550-5; 50-0 || 382-9) 50-6 || H
10 O 04-51 || 538:0| 37-6 || 444-1] 38-2 || H 17 0 08-26 || 548-4} 50-0 || 385-4; 50-5 | H
1 0 07-17 || 540-2} 37-6 || 446-8] 38-2 B 18 0 07-58 || 548-1] 49-8 || 383-9] 50-3 || H
12 0 07-94 || 542-7| 37-6 || 446-4} 38-2 B 19 0 07-50 || 550-3| 49-7 || 383-7| 50-2 | W
20, -0 07-32 || 548-7| 49-6 || 384-4] 50-0 || W
13 0 || 25 08-61 |] 544-8] 37-6 || 443-4} 38-2 | B 21, «0 06-83 || 546-9] 49-5 || 387-5! 49-8 B
14 0 09-39 || 545-1] 37-6 || 442-3] 38-3 B 22) «G@ 06-97 || 544-2} 49-4 || 389-9} 49.7 || W
15 0O 08-11 || 542-5] 37-7 || 442-1] 38-4 | B 23 0 08-66 || 541-6] 49-4 || 388-7] 49-7 || W
16 0 12-11 |} 541-9] 37-8 || 437-9} 38-6 Bf 2¥ LoOreo 09-86 || 541-9| 49.4 || 391-6} 49-8 || W
eo) 04-89 || 550-6| 37-9 || 431-0} 38-8 B 1, 0 12-11 |} 544-6] 49-5 || 393-5] 50-0 || W
18 0 06-70 || 549-3] 38-2 || 437-9] 39-2 || B 240 11-15 || 546-5| 49-6 |} 394-3] 50-0 | W
19 O 06-76 || 549-8| 38-6 || 439-0] 39-7 | H 3. 0 10-06 || 547-5| 49-6 || 395-3] 50-0 || W
20 O 07-60 || 549-9} 39-0 || 438-2| 40-3 || H 4 0 09-02 || 547-6} 49-6 || 394-6} 50-0 || W
21 O 07-71 || 548-6] 39-4 |) 439-4) 40-7 | W 5 60 08-48 || 548-8] 49-6 || 393-7} 50-0 | W
22) 40 08-12]| 544-5] 39-8 || 437-6] 40-9 || H 6: 40 08-16 || 549-4] 49-6 || 391-5] 50-0 || H
23, 0 09-77 || 544-3] 40-1 | 436-6| 41-2 || H Z, 0 07-89 || 550-0} 49-6 || 391-3} 50-0 || H
25 0 O 11-14]| 544-1| 40-4 | 438-1| 41-6 | H &, .0 07-74 || 549-5] 49-6 || 391-3] 50-0 || H
Tei0 10-83 |] 546-1] 40-8 |] 438-6] 42-0 || H 9 16 07-71 || 549-8} 49-6 || 391-2} 50-0 || H
2. 0 10-00 || 546-5| 41-1 |) 437-5] 42-4 || H 10 O 06-73 || 545-5} 49-7 || 394-3} 50-1 H
se@ 09-47 || 547-5| 41-5 || 436-3] 42.7 || H 11 Ot 02-20 || 541-0) 49-7 || 403-7} 50-1 || B
4 0 08-59 || 546-1} 41-8 || 437-2) 43-0 || H 12} 40 05-92 || 540-9] 49-7 || 401-6] 50-2 | B
5: 0 08-52 || 546-3| 42-0 || 436-4| 43-2 | H
6 0 09-15 || 550-6} 42-2 || 434-6] 43-5 || B 13. O || 25 06-03 |) 546-1} 49-8 || 394-2} 50-2 B
Ww 09-08 | 546-2| 42.4 | 436-5| 43-7 | B 14 0 05-96 || 545-8} 49-8 || 395-2} 50-2 || B
8 0 08-28 || 547-4| 42-7 || 437-7| 44-0 | B 15. <0 05-15 || 542-9) 49-8 || 395-7} 50-1 B
9 0 06-59 || 547-4] 42-9 || 437-7| 44-2 || B 16 O 07-49 || 549-5} 49-8 || 392-4} 50-1 B
10; 0 03-67 || 556-9| 43-1 || 428-0] 44.4 B (0) 08-01 || 551-4| 49-8 | 389-5] 50-0 | B
iP 0) | 07-51 || 543-8] 43.4 || 432-6| 44-7 || W 18 0 06-98 || 549-9| 49.7 || 388-5] 50-0 | B
125 0) 06-64 || 543-9} 43-7 || 432-4) 45-0 || W 19 Ot 15-34/]| 548-1] 49-7 || 372-2} 50-0 || H
20 O 09-08 | 554-7} 49-7 | 372-1) 49-9 || H
13. O | 25 07-31 || 543-9] 44-0 || 430-2} 45.2 || W Zl, xO 10-21 || 535-5} 49-6 || 382-7] 49-8 W
14 0 08-31 || 547-3} 44-3 || 425-5) 45-5 || W 22. 0 10-23 |) 527-3] 49-5 || 375-5| 49-7 || H
15 0 08-28 || 548-0] 44-6 || 422-4} 45-8 || W 23, 0 14-46 || 518-4] 49-4 || 393-5] 49-6 || H
16 0 08:16 || 548-3} 45-0 || 420-9} 46-2 || W] 28 0 0O 12-55 || 522-8] 49-3 || 404-6] 49-5 || H |
17a 10 07-64 || 549-6] 45-3 || 417-2] 46-5 || W 1 O 11-51] 538-7} 49-2 || 417-8} 49-5 | H
18s 16 07-65 || 549-7| 45-7 || 416-1] 46-9 || W 2» a} 12-96 || 542-8} 49-2 || 418-1] 49-5 || H |
19. 0 07-71 || 547-5| 46-1 || 415-4] 47-3 || B 3s 10 11-10 || 542-8} 49-1 || 413-0] 49-5 | H |
20 O 07-941! 546-3! 46-4 || 414.6! 47-7 B 4 0 09-76 | 543-3! 49-1 || 409-8: 49.5 | H |
DECLINATION. Magnet untouched, Sept. 21’—Dec. 292.
BrrizaR. Observed 2™ after the Declination, k=0-000140. BALANCE. Observed 3™ after the Declination, k=0-000010.
+ Extra Observations made.
} a.
28
Gottingen
Mean Time
of Declina-
tion Obs.
cooooooos
29
eoeoooooococoeocoooooooooocoooco
30
CONDUBWNKe ©
10
11
12
ocoooocooocoecoccooococoqceooco
DECLINA-
TION.
25 08-88
07-91
08-36
07-98
07-47
06:39
07-15
06-83
25 06-97
07-74
11-37
07-64
05-52
07-17
08-68
07-38
07-92
05-38
07-89
09-56
10-31
11-55
11-00
09-89
00-40
02-93
08-19
08-03
06-97
05-47
03-77
00-99
25 07-24
09-22
09-64
08-68
07-47
07-78
08-03
07-67
07-24
07-13
07-74
09-66
10-68
10-87
10-30
09-15
07-44
08-53
08-21
07-87
05-69
06-09
06-59
08-23
Hovurty OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 28—DECEMBER 3, 1845. 63
nee ee ee
BIFILAR. BALANCE. 7. =| Gottingen | BIFILAR. BALANCE. ome
is ‘S| Mean Time | Dxcrina- rae
Cor- |Thermo-| Cor- |Thermo-|| 2 a of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-| % ‘3
rected. | meter. || rected. | meter. 5 tion Obs. rected. | meter. || rected. | meter. || 5 ~
Se. Div. $ Mic. Diy. 2 GE) The sig I) e Se. Div. S || Mic. Div. oS |
542-7| 49-1 | 405-2] 49-6 || H 113 0} 25 03-88]) 541-2} 41-6 | 416-4) 42-0 | W
543-9| 49-2 | 403-3} 49-6 || B 14 0 07-45 || 542-6] 41-5 | 417-4] 41-8 | W
542-5| 49-2 | 400-2] 49-6 | H 15 0 07-65 || 545-8| 41-3 | 416-5) 41-6 || W
541-2| 49-1 || 403-2} 49-5 || B 16 0 06-93 || 546-7| 41-1 || 416-8} 41-4 || W
540-8| 49-1 | 405-6] 49-5 || B 17 0 07-44 || 548-1] 41-0 || 418-3) 41-2 || W
541-1) 49-1 || 405-9} 49.5 | H 18 0 07-10 || 550-5] 40-8 || 417-5] 41-0 || W
541-3| 49-2 || 407-0] 49.7 | H 19 O 07:07 || 551-5| 40-7 || 418-4| 40-8 B
542-5| 49-4 | 405-9| 50-0 | H 20 O 08-80 || 551-0} 40-6 || 416-1] 40-7 || B
215 40 11-28 || 547-1} 40-4 || 417-6] 40-7 || H
541-1} 49-7 || 404-8] 50-3 || D 22; 20 11-48 || 541-0} 40-3 || 421-5] 40-7 || H
539-1} 49-8 || 401-4] 50-4 |) D 23 0 12-31 |) 537-9| 40-2 || 423.2) 40-7 || H
538-4| 49-9 | 376-9] 50-5 || D 2 0 0 13-32 || 535-8} 40-3 || 431-8] 40-8 || B
542.:0| 49-8 | 375-4] 50-4 || D to 14:65 || 533-7} 40-4 | 435-2] 41-1 || H
543-0) 49-7 | 380-5] 50-3 || D 2 0 16-01 || 538-6| 40-7 | 441-3} 41-4 || B
543-3| 49-6 || 381-0] 50-1 || W By 14-50 || 542-5] 40-9 || 445-2] 41-7 || H
543-6] 49-5 | 381-9] 49-9 || W 4 0 11-64 || 542-7} 41-1 || 452-3) 42-0 || H
540-8] 49-3 | 386-0] 49-8 || W], 5 0 08-79 || 544-8] 41-1 || 446-8} 42-0 || H
541-4} 49-2 | 387-1] 49-7 || W 6 0 08-16 || 545-6] 41-2 || 442-5) 41-9 | W
534-8| 49-0 | 392-8} 49-4 || B “70 08-12 || 544-9) 41-1 || 439-0] 41-8 || W
539-0| 48-8 | 388-1] 49-1 || B 8 0 07-87 || 544-1| 41-0 || 437-4] 41-7 | W
537-4| 48-6 | 394-5] 49-0.|| B 9 O 04-91 || 538-7; 41-0 || 438-4} 41-6 || W
535-2| 48-6 | 401-1] 49-1 || H 10 0O 06-27 || 539-1} 40-9 || 437-4} 41-5 || W
529-7| 48-6 | 407-9] 49-2 || H 11 O 07-67 || 541-8} 40-8 || 430-1} 41-3 || H
535:9| 48-7 | 411-3} 49-4 | H 12 0 05-05 || 541-1} 40-7 || 429-8} 41-3 || H
Breas 4) 209-2) 49-25) B 13 0 || 25 06-86] 542-5| 40-6 || 429-7| 41.2 | H
522.2| 48-6 | 424-7| 49.0.|| B
14 0 08-31 || 543-5] 40-5 || 428-5) 41-0 || H
538-4| 48-5 || 422-7| 49.0 || D
15 0 08-55 || 544-0} 40-4 || 428-9) 40-9 || H
540-9] 48-4 | 409-8| 48-9 || D =
16 0 09-08 || 545-0} 40-3 || 428-9} 40-7 || H
544-3] 48-3 | 404-5| 48-9 || W 2
ae 17), OF 15-14 |) 553-4| 40-1 || 423-7) 40-5 || H
543-9] 48-1 | 402-0| 48-6.] W iS 3
18 Of 07-17 || 556-6] 40-0 | 413-1} 40-5 || H
543-4| 47-9 | 395-8} 48-2 || W :
19 0 10-13 |] 557-4| 39-9 | 413-8} 40-4 | W
eee | 802 1) 477 )| 8 20 0 11-41) 548-2] 39.7 | 415-5) 40-0 || w
545-3| 47-0 | 388-3] 47-0 || H Alias Gl laee es
| 21 10 13-05 | 535-8 | 39-5 || 422-4) 39-6 || B
544.6| 42.2 | 431-2| 42-8 | B 225 50 12-42 536-6 39-3 426-1 39-3 || W
| 23710 14-68 || 531-9] 39-1 || 425-6| 39-2 || W
544-8) 42-5 | 438-2] 43-2 || B § :
3 105 10 19-19 |) 528-6} 39-0 || 427-6| 39-3 |) W
545-0} 42-8 | 420-4] 43-5 || B : :
0 15-71 || 529-3] 39-1 | 446-7; 39-7 || W
545-8} 43-1 | 421-3] 43-8 || B = Z
20 10) 15-04 || 545-0} 39-2 || 451-7} 40-0 || W
546-0) 43-3 | 423-6] 44.0 | B 2 :
| 3 0 17:09 || 539-4] 39.6 || 473-0) 40-4 || W
545-8} 43-4 | 420-4} 44-1 B ; oS
4 of 20-43 || 544-6] 39-8 || 670-9, 40-7 || W
547-5| 43-4 | 426-2} 44.0 || H 5
| 5) (0) 04-41 || 553-3] 40-0 || 723-2} 41-1 || B
544-3) 43-3 | 416-5] 43-8 | H ae
| 6 0 00-48 || 565-0} 40-5 || 847-0] 41-7 || W
542-2} 43-1 || 424-9] 43-5 || W oe
7 +O 26-03 | (730-0), 40-7 || 853-2) 42-1 || H
539-0] 42-9 || 424.5] 43.2 || H 3
8 0 02-96 || 621-0} 41-0 || 816-5} 42-5 || B
536-9| 42-7 || 424-1] 43-0 || H 2 ‘
OF OT, 08-88 || 477-3} 41-1 | 551-0} 42-6 | W
537-0} 42-5 | 423-1} 43-0 | H :
10 Of) 25 08-45 || 484-8} 41-0 || 560-7] 42-5 || H
537-9| 42-5 || 426-6] 43-0 || H 1 0 57.3 3.7 529-5! 49.2 || B
540-3| 42-5 | 498.3] 43-1 | H Pe adlieaay caer cotaeieeeol ts
542:5| 42.6 | 430-8| 43-2 || H eee de ina aa ae ak
543-7-| 42-7 | 431-8] 43-2 | H 13 Of|| 24 50-93 || 457-7} 40-6 || 489-4) 41-5 | B
543-5| 42-7 || 434-1| 43-3 || H 14 OfF|| 24 53-88 | 464-7] 40-3 || 401-4} 41-3 || B
545-3} 42-7 | 430-1] 43-2 || H 15 Of] 25 02-42|| 485-7| 40-1 || 430-8] 41-0 || B
545-1} 42-6 | 427-0] 43-0 || H 16 OF 00-20 || 511-0} 39-9 || 383-1| 40-6 || B
544:5| 42-4 | 426-4] 42-8 || B 7h 7 10) 05-79 || 519-7| 39-5 || 444-0] 40-1 | B
041:8| 42-2 | 427-9| 42-6 || B 18 0 08-14 || 523-9| 39-1 || 484-4] 39-5 | B
542-8) 42-1 || 426-4] 42-5 || B 19 0 09-59 || 528-2] 38-7 || 480-3} 38-8 || H |
541-6} 42-0 || 428-5| 42-3 || W 20 0 09-79 || 528-0} 38-2 || 478-9] 38-4 || H |
546-7! 41-8 || 421-7! 42-2 || W 21940 07-96 || 529-6! 37-8 || 480-4} 38-1 | W
DECLINATION. Magnet untouched, Sept. 214—Dec. 294,
BiFILAR. Observed 2" after the Declination, k=0-000140.
tT Extra Observations made.
Nov. 284 10b—2924 10},
Dec. 34 7h Qm,
Dec. 34 12h,
after the times of hourly observation.
BALANCE.
Chserved 3™ after the Declination, :—0-:000010.
Term-day Observations made.
Bifilar scale out of sight, reading estimated.
Observations accidentally omitted ; the quantities in parentheses are the means of observations made 5™ before and 5™
See Hatra Observations.
64
Gottingen
Mean Time
of Declina-
tion Obs.
cocooocoocooocococoeoooeces eceoooocoocoocoeceqcooqooqooqoroeo ss Soooe om oom eo ao or
HourLy OBSERVATIONS OF MAGNETOMETERS, DECEMBER 3—9, 1845.
DECLINA-
TION.
25 08-08
08-61
10-43
09-76
09-82
09-89
08-45
08-68
10-97
11-10
08-92
08-06
07-79
07-57
07-74
07-67
08-72
09-40
07-92
10-04
05-23
07-25
09-35
09-10
11-99
12-46
12-67
14-73
14-91
13-02
13-90
15-74
12-85
08-83
08-46
07-94
07-57
07-71
07-65
06-63
06-59
05-43
08-58
08-38
07-37
07-99
08-41
08-52
09-20
09-76
11-32
11-07
11-42
11-30
11-03
10-60
08-34
25
25
BIFILAR.
BIFILAR. BALANCE. | % | Gottingen BIFILAR. BALANCE.
2 -=| Mean Time || Decuina- a
Cor- |Thermo-|| Cor- |Thermo-| %°3 | of Declina- TION. Cor- |Thermo- Thermo-
rected. | meter. |] rected. | meter. S 1 tion Obs. rected. | meter. |} rected. | meter. ||
“Se. Div. ° Mic. Diy. a ds eho gms Lee Sc. Diy. ° Mie. Div. 2
530-4} 37-5 || 477-2] 37-7 || H 6 7 O | 25 10-04|| 538-5} 40-8 || 463-2] 41-5
532-:8| 37-2 || 484-9] 37-7 || H 8 0 08-41 || 539-7} 40-8 || 462-9) 41-5
533-5| 37-1 || 478-5| 37-7 || H 9 0 08-90 || 538-0} 40-8 || 463-0} 41-5
531-6} 37-1 || 474-8] 37-8 || H 10 O 07-67 || 538-1] 40-8 || 460-3! 41-5
537-1] 37-3 || 478-2] 38-2 || H Hy 0) 02:62 || 544-0} 40-8 || 456-1] 41-3
537-3| 37-6 || 480-2] 38-5 || H 12 0 04-78 || 537-6| 40-6 || 455-0) 41-0
534-9| 37-9 || 480-0} 38-6 || H
542-9} 38-0 || 478-6| 38-7 | H 713 O | 25 08-08]) 537-1| 36-7 || 451-1! 36-4
535-3| 38-2 || 481-9] 39-0 | B 14 0O 08-05 ||, 536-6} 36-4 || 446-3] 36-0
540-2} 38-4 || 478-6] 39-1 B 15 0 08-45 || 536-8| 36-0 || 446-8] 35-7
540-5| 38-5 | 477-8] 39-2 | B 16 0O 08-58 || 537-7| 35-7 || 447-3| 35-4
538-0| 38-6 || 475-5| 39-3 | B Ne wl) 07-76 || 539-9| 35-4 || 447-7) 35.3
537-9| 38-7 || 475-5] 39-4 | B 18 0 07-60 || 541-9! 35-2 || 447.9) 35-1
535-8| 38-9 || 473-4] 39:6 | W 19550 07-67 || 541-7| 35-0 || 450-4| 35-0
534-9} 39-0 || 472-1} 39-8 | W 20 O 07-67 || 540-5} 34-9 || 452-2) 35-0
2 , 21 O 10-68 || 541-9} 34-8 || 451-2] 34-9
SoPO erie lean at] Ow] \ Banko 07-60|| 538-9| 34-7 || 451-8] 34.9
535-5| 39-4 || 470-4] 40-2
= : 23° 0 09-66 || 533-6| 34-7 || 455.4] 35-1
539-8| 39-6 || 466-6] 40-5 | W %
5 : = 3 “0550 09-59 || 535-9] 34-8 || 454-3] 35-2
537-5| 39-8 || 465-6] 40-7 | W
110 12-82 |) 540-1} 34-9 || 454.8] 35-4
541-4} 40-0 || 462-6] 40-9 | W
2 0 11-77 || 539-7| 35-2 || 456-1] 35-9
545-1| 40-2 || 459-0] 41-0 | W 5
3 0 11-44 || 541-0| 35-6 || 460-2} 36-4
543-0} 40-4 |) 458-5| 41-1 | B
4 0 10-74 || 539-9} 36-0 || 462.4] 36-8
541-5| 40-5 || 456-4] 41-2 | B 5
zi : 5 0 09-35 || 541-0] 36-6 || 460-5) 37-4
536-9} 40-5 || 455-2] 41-2 | H =
2 6*"0 08-88 | 541-5) 37-1 || 458-8] 37-8
526-4| 40-5 || 459-7} 41-2 || H : =
aa Tide) 05-96 || 539-7) 37-5 || 460-9} 38.2
529-8| 40-6 || 456-1] 41-2 | H =
8 0 07-98 || 543-7| 38-0 || 457-1] 38-6
531-0} 40-7 || 461-3] 41-4 ] B
: 9° 0 07-55 || 543-6] 38-4 | 454.5] 39.0
528-0| 40-8 | 464-1] 41-6 || H
10 O 07-47 || 544-0! 38-7 || 452-9] 39.3
527-4| 41-0 || 466-0] 41-8 | H =
x ie We (0) 07-00 || 541-8} 38-9 || 453-1] 39.7
Bete eerie: te oel 12 0 07-57 || 542-0| 39-1 || 451-2| 40.0
533-9} 41-5 || 494.0] 42-2 | H
528-8| 41-5 | 504-8| 42.2 | H 13 0 || 25 07-69 || 542-8| 39-5 || 448-2] 40.3
531-6} 41-5 || 504-8) 42-2 | W 14 0 07-78 || 542-2| 39-8 || 446-9] 40-5
537-0| 41-6 || 493-7) 42.2 | W 15. 0 08-05 || 543-1) 40-0 || 443-9] 40-7
538-3| 41-5 || 478-9] 42-0 | W 16 0O 08-72 || 542-8; 40-1 || 441-4] 40-7
536-3| 41-3 | 471-5} 41-8 || W 17A40 08-80 || 544-7 | 40-2 || 440-6) 41-0
536-7| 41-1 || 466-1) 41-6 || W 18 0 08-59 || 544-4} 40-3 || 440-4) 41-1
536-3| 40-9 | 462-0) 41-5 | H 19), 40 07-79 || 547-1 | 40-4 || 439-3) 41-1
536-0} 40:8 || 458-4} 41.2 | H 20: 0 07-92 || 545-0} 40-4 || 439-0} 41-0
537-5| 40-7 | 456-6| 41-2 | H 21.440 07-40 || 544-4} 40-3 || 439-6] 40-9
22 0 06-68 || 541-3 | 40-3 || 442-6| 40-9
537-3| 40-6 || 451-3} 41-1 || H
23) 10 08-01 || 538-3} 40-3 | 442-8} 40.9
536-6| 40-4 || 449-4] 40-9 | H
9 6.0 09-27 || 538-8| 40-5 |] 443-8| 41.2
528-2} 40-3 || 452-2) 40.8 || H
1530 09-94 || 540-3} 40-7 || 443-2) 41-5
540-2| 40-2 || 446-8) 40-6 | H
2), 10 10-47 || 540-9} 41-0 || 445-1] 41-8
539-9} 40-0 || 450-8} 40-5 | H
3440 09-77 || 543-7| 41-4 || 444-7] 42-1
543-0} 39-9 || 450-7) 40-4 | W
4 0 08-01 || 542-2} 41-7 || 445-6) 42.3
541-9} 39-8 || 451-0} 40-3 | W =
50 07-52 || 546-0} 41-8 |} 442-5} 42.4
536-1| 39-7 || 453-8) 40-2 || B =
3 6 0 08-05 || 544-5} 41-7 || 440-8) 42.4
534-2} 39-7 || 454-5} 40-1 || W r 3
7220 07-71 || 543-8} 41-7 || 442-0] 42-3
532-8| 39-6 || 454-1] 40.0 || W
8 0 08-39 || 542-9] 41-6 || 440.7| 42-2
534-6| 39-6 || 456-2} 40.2 | W >
9 0 07-81 || 543-6] 41-5 || 439-1] 42-0
535-9} 39:8 || 458-0} 40.5 || W
10,40 07-34 || 542-1] 41-3 | 438-1] 41-8
537-8| 40-1 || 460-8] 40-9 | W
i) 07-71 || 543-2} 41-2 | 439-0} 41.7
Se ae HIME Ne coh oo a emt 07-87 | 543-9| 41-1 | 436-5] 41-5
536-9| 40-7 || 473-2] 41-5 || W
539-3| 40-8 || 468-9) 41.5 || W 13. O | 25 08-14} 542-6} 40-9 || 435-5] 41-3
536-9 | 40-8 || 468-4! 41-5 | H 14 0 08-38 || 543-3 40-8 434.6] 41-2
DECLINATION. Magnet untouched, Sept. 214—Dec. 294.
Observed 2™ after the Declination, s=0:000140.
BALANCE.
Observer’s
Initial.
we WHNKnnh dea g¢ede eos en SSS oes SR
Observed 3™ after the Declination, s=0-000010.
Hour.Ly OBSERVATIONS OF MAGNETOMETERS, DECEMBER 9—15, 1845.
s
asa 4s BIFILAR. BALANCE. % .| Gottingen BIFILAR. BALANCE. re 2
ME Tie DECLINA- F ‘E | Mean Time | Decrana- : [£5
of Declina- TION. GCor- |Thermo-|| Cor- |Thermo-|| 2°E | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|) % *Z
tion Obs. rected. | meter. || rected. | meter, 5 - tion Obs. rected.| meter. || rected. | meter. S =
ee |< save °. |mepw! - a. et. any ||| eo), A SeDiv.| ° {Mie Div.| ° |
915 0 || 25 08-72|| 544-8! 40-7 | 433-5) 41-1 || B | 12. 0 O | 25 09-15] 534-9) 39-9 || 430-5) 40-2 | W
16 0 08-72 || 545-4] 40-6 || 432-0] 41-0 || B 1 0 13-41 || 542-2| 39-9 || 434-0] 40-2 || W
0 08-82 || 545-6] 40-4 || 430-8) 40-8 || B 2 0 13-46 || 543-8} 39-9 || 434-1] 40-3 | W
18 0 08-25 || 545-7| 40-3 || 430-3} 40-6 || B 3.0 13-34 || 545-9} 39-9 || 437-7| 40-4 || W
19 0 08-08 || 546-7| 40-0 || 429-1} 40-4 || H 4 0 10-63 || 547-0| 40-0 || 437-2] 40-5 || W
20 O 08-39|| 548-2] 39-9 || 427-8| 40-2 || H 5 0 09-29 || 547-2} 40-0 || 436-0} 40-5 || W
21 0 08-19 || 546-1} 39-8 || 429-6| 40-0 || W 6 0 09-93 || 544-4} 40-0 | 435-5] 40-3 || H
22 O 08-97 || 543:1| 39-6 || 431-4] 39-8 || H i 09-10 || 541-4} 39-8 || 437-0} 40-1 || H
23 «O 09-22 || 542-5) 39-4 || 431-7| 39-7 | H SO 10-61 |) 533-7| 39-6 || 451-0] 39-8 || H
HO} '0"''O 10-80 || 537-5] 39-3 || 434-1} 39.8 | H 9 0 06-86 || 540-9) 39-4 | 445-2) 39-4 || H
ee O 13-99 || 540-8) 39-4 || 436-1} 40-1 || H 10 0 07-24 || 543-0) 39-0 || 440-7} 39-0 || H
2 0 13-43 || 538-1| 39-7 || 438-0} 40-5 | H Hl @) 07-04 || 541-4| 38-7 || 436-3) 38-6 || B
310) 10-83 || 538-5] 39-9 || 441-1} 40-7 | H 12 0 06-79 || 540-5| 38-3 || 436-3] 38-2 || B
BO) za eae) 402) 447-0) 41-0 | | 13. 0 || 25 06-97|| 538-7| 37-9 || 435-4) 37-7 | B
Bo | 08:61 || 544-9] 40-2 || 446-4) 41-1 H i
14 0 05-42 || 537-5| 37-5 || 429-5] 37-2 || B
6 0 07-81 || 546:9| 40-4 || 443-4] 41-2 | B :
le 15 0 07-44 || 537-7| 37-0 | 431-3) 36-8 || B
70 07-65 || 546-4) 40-5 | 440-2) 41.2 | B : :
16 0 08-08 || 538-0| 36-6 || 431-4) 36-3 | B
8 0 07:47 || 545-8] 40-6 | 439-3] 41.2 || B ; |
Mi 0 07-34|| 538-5] 36-1 || 432-8] 35-8 | B
9 0 07-17|| 545-5 | 40-7 || 440-0] 41-3 | B :
SiO 07-60 || 539-7} 35-6 || 433-1) 35-3 | B
10 0 07-04 || 543-6| 40-8 || 441-4} 41-5 || B
19 O 06-86 || 542-5] 35-1 |) 431-3] 34-9 || H
eee |) eae) 408. | 440-8) 41-7, | H 20 0 07-34|| 542-6| 34-7 || 430-6] 34.4 || H
7-45 || 543-4] 41-1 || 440-9) 41-9 | W 2 : | wie, Al
12 0 ge 21 0 06-59 || 543-7| 34-4 || 430-0] 34.1 || W
3 0 || 25 06-90|| 542-5] 41-4 || 441-8} 42.3 | W 22 O 06-77 || 544-0) 34-1 || 428-8) 33-7 ||
14 0 07-84 || 545-1) 41-8 || 439-8| 42-7 || W 23 0 08-99 || 533-7| 33-7 || 431-2} 33-5 || H
15 0 08-14 || 545-6| 42-2 || 436-9) 43-1-| W]13 0 0 14.98 || 523-1| 33-6 || 437-1) 33-5 || H
16 0 08-61 || 546-2) 42-6 || 434.2) 43-5 || W 0) 20-53 || 523-9} 33-6 || 444-5| 33-9 || H
0 08-41 || 545-8} 43-0 || 433-4) 43-9 || W 2,0 21-32 || 5343) 33-7 |) 456-1) 34-3 || H
18 0 07-94 || 546-3} 43-4 || 430-4) 44.2 || W 3.0 18-60 |} 538-4} 33-9 || 464-0] 34-7 || H
OO 07-67 || 545-8} 43-6 |) 427-8] 44.2 || B 4 Of 14-23 || 542-1] 34-2 || 485-1) 35-1 || H
20-0 07:54 || 545-0} 43-7 || 427-4) 44.2 || B 5 OF 11-98 || 534-2} 34-6 || 492.8) 35.5 || H
PAN) 07-40 || 544-0} 43-7 | 429.1) 44.2 || H 6 5f| 25 06-32] 540-0} 35-1 || 494-6} 35.9 || B
22 0 06-97 || 540-9} 43-5 | 427-5| 44.0 || H 7 Of] 24 48-45) 542-9| 35-5 |) 504-1| 36-2 || B
23 0 08-38 || 539-3] 43-4 | 424-6} 43-7 | H 8 0] 25 05-85 || 532-2) 35-7 || 482-7] 36-4 || B
11 0 o| 09-76 || 540-1} 43-4 || 425-5) 43-8 || H 9 0 | 25 05-85 || 529-4) 35-8 || 476-8} 36-3 || B
| Nadal 10-88 || 542-6) 43-4 |) 427-4] 44.0 || H 10 Of} 24 50-78] 525-5] 35-7 || 470-9| 36-2 || B
2 0 10-97 || 545:0| 43-5 || 430-2] 44.2 || H 11 0 || 24 59-84]| 520-0] 35-6 || 444-0] 36-2 || W
3 0 10-28 || 547-3 | 43-6 || 431-5| 44-1 || B 12 0 | 25 03-65 || 528-7] 35-4 || 416-0} 35-9 || W
ee eee ee) 28! | Be ta is 0 | 25 07-81] 542-4) 406 || 438-6| 41-2'|| a
ay Y) 08-19 || 548-4] 43-7 || 428-4) 44.0 || H % P
14 0 07-72 || 543-7| 41-0 || 436-2] 41-7 || H
6 0 07-51 || 546-1] 43-5 || 427-0] 43-8 || W 2
15 0 08-09 || 543-3} 41-4 || 434.8] 42.2 || H
(a) 07-84 || 546-9) 43-3 || 424-4) 43.6 || W
16 0 08-11 |) 544-0] 41-8 || 432-0] 42.5 || H
8 0 07-54|| 545-1} 43-1 || 425.2] 43.4 || W || * |
z 7 7/0) 11:03 || 543-4] 42-1 || 427-8] 42-7 || H
Sar0 07-07 || 544-5] 42-9 | 424-0] 43-2 || W a : :
18 0 | 08-18 || 547-6} 42-3 || 416-1} 42-9 ||
10 0 07-37 || 543-2; 42-7 || 425-0} 43-0 || W |
a oe SOs 11-10 || 544-4] 42-4 |) 415-7] 42-9 || W
ey. 0 07-31 || 541-1) 42-5 || 426-5] 42-8 || H 4 E =
12 0 05-69 || 539-1| 42.2 | 497.3| 49.6 || H 20 O 05:97 || 546-0} 42-4 || 417-2} 42.9 || W
5 i ; 21.0 07-00 || 546-1| 42-3 || 416-8] 42.7 | B
13 0 || 25 08-55 || 538-2) 42-0 | 424.5] 42.3 || H 22 O 05-85 || 544-3) 42-2 || 419-4] 42-5 || W
14 0 07-92 || 539-4] 41-8 || 423-9] 42-0 || H 23 0 07-81 || 537-2} 42-0 || 419-1] 42.4 || W
io) 0 07-91 || 541-5] 41-6 || 424.8) 41-7 | H | 15 0 O 13-77 || 519-8] 41-9 || 427.4] 42.3 || W
16 0 08-19 || 542-3} 41-4 | 423-4) 41-5 | H 1 0 12-38 || 528-3] 41-9 || 424.9] 42.5 || B
17 0 08-25 || 544.9] 41-1 | 421-0} 41-2 || H 2 0| 12-98 || 535-1} 42-0 || 431-7] 42-7 || W
18 0 07-96 || 645-0) 40-8 | 422-9) 41-0 || H 3) OF | 11-05 || 530-6} 42-3 || 445-0) 42-9 || W
Eo) 06:79 || 546-7) 40-6 | 421-5} 40-7 || W 4 0 10-60 || 543-5| 42-4 || 442-8] 43-0 || W
20 O 07-64 || 546-0} 40-4 | 421-1) 40-5 || W 30) | 08-41 |} 544-2) 42-4 || 437-8} 43-0 || W
21 0 07-20 || 544-4} 40-3 | 425-3] 40-4 || B 6 0 | 25 08-80|) 541-0) 42-3 || 437-8) 43-0 || H
22 0 07-25 || 538-5} 40-1 | 428-7| 40.3 || W 7 ot 24 49-22 /| 519-6] 42-2 || 459-3] 42-8 || H
23 0 09-08 || 530-7! 40-0 | 432-1! 40.2 | B 8 O |! 25 06-39" 534-5! 42-0 ' 450-1! 42.7 || H
DECLINATION. Magnet untouched, Sept. 214—Dec. 294.
Breiuar. Observed 2™ after the Declination, <—0:000140. BALANCE. Observed 3™ after the Declination, k=0-000010.
+ Extra Observations made.
MAG. AND MET. oss. 1845.
66
HovuRLY OBSERVATIONS OF MAGNETOMETERS, DECEMBER 15—20, 1845.
Gottingen BIFILAR, BALaNceE. H | Gottingen BIFILAR. BALANCE.
Mean Time || DEcLINA- z= | Mean Time || Decurna-
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 3°g ]} of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. rected.| meter. || rected.| meter. ||S'~| tion Obs. rected. | meter. || rected. | meter
it h m. = “ Se. Div. = ‘Mie. Div. 2 d. ie m. = ‘ Se. Div. | Mic. Div. ?
15 9 Of|| 24 46-21 527-7| 42-0 || 442-0} 42-7 | H | 17 17 0 || 25 07-64 || 541-8| 35-7 || 424-0} 36-2
10 0 || 25 05-62|| 537-6) 42-0 || 430-6| 42-8 | H 18) 0 08-68 || 539-0| 35-6 || 426-5| 36-2
i) 05-63 || 541-7] 42-1 || 428-2) 42-8 | B 190: 08:08 || 543-2} 35-6 || 424-7} 36-2
Wee O 07-31 || 543-8} 42-1 || 425-6| 42-7 | B 20 O 08-06 || 539-4| 35-6 || 426-5] 36-1
- 21.0 08-06 || 542-3} 35-6 || 426-5] 36-1
13 0 || 25 09-93 || 539-6| 42-0 || 409-6) 42-6 || B 2200 08-48 || 540-8} 35-7 || 427-1} 36-2
14 0 06:98 || 539-1| 42-0 || 411-6| 42-6 || B 23 -0 10-20 || 535-7| 35-7 || 428-7) 36-3
15 0 09-89 || 538-4| 42-0 || 405-1} 42-6 | B 118 0 O 10-87 || 528-8| 35-8 || 437-0| 36.4
160 08-68 || 543-5] 42-0 |) 391-2] 42-7 | B ed) 13-76 || 532-7| 36-0 || 438-1] 36-7
Ui 11-86 || 542-3| 42-0 || 390-8| 42-7 || B 2:80 15-32 || 531-6| 36-3 || 440-6] 36-9
18 O 09-29 | 542-1} 42-1 || 397-8) 42-8 | B 3 0 14-60 || 535-0| 36-6 || 451-8) 37-3 |
19 0 09-15 | 543-3) 42-1 || 403-7} 42-8 || H 4 0 10-97 || 534-8} 36-9 || 455-5} 37-6 ||
20 O 08-50 || 539-1} 42-2 || 417-6| 42-9 | H 5 0 15-78 || 541-1} 37-2 || 455-8} 37-8
21 0 08-36 || 542-7) 42-3 || 424-1) 42.9 | W 6710 00-98 || 550-2} 37-2 || 451-3) 37-8
22 0 08-39 || 541-0} 42-2 || 424-6] 42-8 || H 7 O |} 25 08-77]| 542-4] 37-2 || 444-6] 37-8
23 O 09-05 || 538-2} 42-1 || 425-5) 42-7 | H 8 0 || 24 59-83]| 546-5| 37-1 || 440-4] 37-8
TGmOe 70 10:14 || 536-8] 42-0 || 425-6] 42-7 | H 9 0O || 25 06-95 || 538-7| 37-0 || 439-3) 37-7
tO) 11-88 | 532-8] 42-0 || 426-0} 42-7 | H 10 0 07-04 || 539-8| 36-8 || 433-8] 37-3
2 0 13-46 || 540-4] 42-0 |) 433-2| 42-7 || H 0 04-98 || 541-0] 36-6 || 429-6} 36-9
3 0 10-36 || 538-7} 42-1 || 435-8) 42-7 || H 12 0 06-36 || 537-8| 36-3 || 427-7] 36-5
ie vee pa soeelkan. © ae ¥ 13 O || 25 08-28] 540-6] 36-0 || 425-6] 36-2
5 (=O 08-68 || 538-3} 41-9 || 441-5| 42-5 | H
2. 14 0 07-76 || 540-4} 35-7 || 425-8] 35.9
(3) (0) 07-02 || 537-2] 41-9 || 441-3} 42.3 ] B z
= 15 0 07-76 || 541-0) 35-5 || 427-9] 35-7
iL OF 00-67 || 537-3] 41-8 || 438-0} 42-2 || B : ‘
1620 08-06 || 542-0} 35-3 || 428-5] 35.5
8 0 02-93 || 543-0] 41-7 || 432-2] 42-1 ] B E
5 e = 7210 08-34 || 541-6) 35-1 || 429-5] 35-4
g) 90} 07-25 || 539-1] 41-5 || 429-5] 41-9 | B
2 ; 18 0 08-90 || 541-9} 35-0 || 428-7] 35.3
10750 05:32 || 539-0} 41-3 || 428-3] 41-7 | B :
19 70 08-16 || 542-1] 34-9 || 428-1] 35.3
11 O 04-02 || 539-4] 41-2 || 424-8) 41-4 | W ae
12 0 01-191 536-71 41-0'|' 411-0] ‘41.1 | Way!) 2000" |e es0R ie hres) Sede eee
21-0 | 08-08 || 542-1] 34-9 || 434-0) 35.7
13. 0 || 25 06-50 || 538-7] 40-7 || 410-5] 40-8 | W 22 0 07-20 || 540-3} 35-1 || 433-4) 35.9
14 0 04-91 || 536-2] 40-4 || 414-1} 40-5 | W 23 (O 07-34 || 540-4} 35-3 || 432-8) 36.2
15 0 10-61 || 540-7] 40-1 || 413-2} 40-2] W719 0 O 09-02 || 540-1] 35-7 || 434-2} 36.5
16 O 10:38 || 536-8] 39-8 || 411-5] 39-8 || W eo 10-23 | 538-8} 36-1 || 440-2] 36.9
7/0) 08-83 || 541-9] 39-5 || 407-4] 39-5 | W 2.0 10-70 || 540-1] 36-5 || 436-9} 37-3 |
Wey 0) 08-72 || 542-3} 39-2 || 407-9| 39-0 | W 3 0 10-60 || 542-9} 37-1 || 439-2} 37-7
19 10 10-63 || 545-6} 38-8 || 409-9| 38-6 || B 4 0 09-19 || 544-7) 37-6 || 440-6] 38-3
20/0 12-42 || 540-5] 38-5 || 412-8] 38-3 | B 5.80 08-61 || 544-9] 38-0 || 439-6] 38-7
21 0 10-90 || 535-5} 38-1 || 417-6| 38-1 || H 6 0 07-92 || 546-0} 38-3 || 436-6) 38-7
22 0 09-67 || 530-1] 37-8 || 418-8| 37-8 | H 140 08-05 || 544-5] 38-3 || 433-9| 38-7
23 0 11-88 || 530-2] 37-6 || 418-4| 37-6 || H 8 0 07-94 || 544-2} 38-3 || 437-3} 38-7
7 OO 08-99 || 534-1] 37-4 || 420-4] 37-5 || H 9.00 07-31 || 544-2} 38-2 || 429-2} 38-5
ho) 11-37 || 529-2] 37-3 || 428-5] 37-5 || H 10 0 07-34 || 544-2] 38-1 || 424-1] 38-5
2 0 | 10-67 | 536-0] 37-2 || 434-0] 37-5 || H 140 07-32 || 543-7] 38-0 || 431-5] 38-5
3770 12-45} 539-9| 37-2 || 441-4| 37-7 | H 12)10 07-37 || 542-7] 37-9 || 425-7) 38-5
$i O ee ee eee leo tdkarr el cecd 2 Pe 18 cOheenaera|) 542.3) "57g detest ieee
d 0 09-02} 540-8] 37-5 || 448-0} 38-0 || B pe =
| ‘ 140 07-72 || 544-5] 37-8 || 421-1] 38.3
6 0 || 07-32| 542-8] 37-6 || 443-6] 37-9 || W is et 7G
= 15 O 06-84 || 545-9] 37-7 || 416-1] 38-2
i OS} 07-24| 544.5] 37-5 || 437-9] 37-8 || W : .
a F 7 16 0 08-38 || 542-4| 37-6 || 415-:5| 38-1
8 0 06-70 | 540-0] 37-4 || 435-3] 37-6 || W e es
= ‘ 17 +O 08-48 || 544-7| 37-5 || 417-2) 37-9
9° 0 | 04-44] 544.2) 37-2 || 431-6] 37-3 | W & ;
18 0 07-87 || 546-4| 37-4 || 417-2] 37-8
10 O 06-59 | 541-2) 37-0 | 426-9} 37-0 | W seats us
| 5 . 19 0 07-34 |) 547-5] 37-3 || 426-1] 37-8
Wik (0) 06:59 | 540-6] 36-7 || 425-9| 36-7 | H : z
12 0 04-42| 540-5| 36-4 || 423.9| 36-6 | H 258 DE OA 84613109 haa oe
‘ 21 0 07-69 || 545-8] 37-1 || 417-8] 37.7
13 0 || 25 06-39 || 535-3] 36-2 || 416-7] 36-5 | H 22 0 07-13 || 544-5| 37-1 || 426-8] 37-7
14,0) |) 06:01} 538-3] 36-0 | 411-6] 36-4 | H 20, 10 06-71 || 540-4] 37-1 || 426-0} 37.7
Wisy (Oi) 07-07] 538-8} 35-9 || 418-6) 36-2 | H | 20 0 0O 07-84 || 539-3] 37-2 || 424-8| 37-8
16 0 07-37! 541-1! 35-8 |! 422-7! 36.2 || H (0) 10-16 540-2! 37-2 |) 429.2! 37.8
DECLINATION. Magnet untouched, Sept. 214—Deec. 29¢.
BIFILAR. Observed 2™ after the Declination, k=0°000140.
BALANCE.
Observer's
Initial.
Motte e eee ses See Sl wemntmhndodduded dn
Observed 3™ after the Declination, k=0°000010.
{+ Extra Observations made.
anmee
Gottingen
Mean Time
of Declina-
tion Obs.
|
= a
SDOMTH AA wr!
{ 21
| 22
COMDNRBAAhwWHe
—
BiFiLan.
DECLINA-
TION.
25 10-77
10-85
09-62
08-61
08-05
08-19
07-99
02-64
02-96
03.43
05-72
06-98
07-64
06:39
07-52
06-90
06-50
09-29
07-71
07-54
08-03
08-31
11-46
10-94
10-70
09-59
09-15
09-06
09-02
08-08
05-97
07-78
07-64
06-53
07-57
08-36
04-41
06-51
07-47
06-86
07:54
07-37
08-14
07-98
08-52
08-55
09-69
11-14
10-50
10-74
10:09
09-19
10-67
05-79
09-62
07-87
07-74 |
BIFILAR. BALANCE. _ _;| Gottingen BIFILAR. BALANCE.
2-8] Mean Time || Decutna- || —— 7
Cor- |Thermo-| Cor- |Thermo-|] 2‘2] of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
rected. | meter. || rected. | meter. Ss ‘a tion Obs. rected. | meter. || rected. | meter.
Se. Dive 2 Mie ey. S (ol, daly Seal 3 ow Se. Div. 2 Mie. Div. G
542-7| 37-3 | 426-9] 38-0 | H | 23 11 0 |} 25 07-98]| 547-4] 39-8 || 416-9| 40-5
545:9| 37-4 | 429-6] 38-0 B 12900 08-06 || 548-0} 39-8 || 414-5] 40-3
545:0| 37-6 || 430-6| 38-2 | H
545-1} 37-7 || 428-2 38-3 H 13 O || 25 08-12}} 547-7} 39-6 || 412-1} 40-2
546-4| 37-8 || 429-0] 38-4 || W 14 0 08-11 || 545-3] 39-4 || 411-5] 40-0
546-5| 37-9 || 429-8| 38-5 || W Tho 0 08-72 || 546-8| 39-1 409-8| 39:8
545-7| 37-9 || 429-6] 38-5 || W 16 0O 07-89 || 544-3] 38-9 || 409.0} 39-5
542-7| 37-9 | 433-2] 38-5 || W hee 10) 07-20 || 544-0} 38-8 || 409-3} 39-2
542.3| 38-0 | 430-1] 38-5 || W 18 0 07-60 || 545-0] 38-6 || 408-1] 38-8
541-2} 38-0 | 433-3] 38-7 H 19 O 07-17 || 545-8 | 38-4 || 408-7} 38-5
540-4| 38-0 || 429-9| 38-8 | H 20 O 07-32 || 544-5} 38-1 || 409-9| 38-1
542.3| 34.4 | 429.4| 34.6 B Pall (0) 07-37 545-0 37-8 408-5 37-7
5 2250 07-52 || 544-0) 37-4 || 408-8] 37-4
541-:9| 34-3 || 423-9] 34-6 B
P 23 +O 09-12] 540-8} 37-2 || 408-8} 37-2
540-8| 34-3 | 423-5] 34-6 B
24 0 0 11-69 || 538-3) 36-9 || 409-1} 37-0
541-9! 34:3 || 423-4] 34-7 B 5
: 10 12-75 || 540-8| 36-8 || 409-7| 37-0
544.2| 34-3 || 424-4] 34-7 B =
. 2 00 12:83 || 543-4! 36-7 || 410-0} 37-1
551-0! 34-3 | 422-3) 34-8 B
Bi) 11-22 || 542.2) 36-7 || 417-0] 37-2
549-5| 34-4 | 423-3) 35-0 H : aif
= 4 0 10-77 || 539-3| 36-8 || 423-6] 37-4
548-4| 34-7 || 424-6} 35-3 jel e is
: ao 10) 06-98 || 545-8] 36-9 || 424-7| 37-5
547-1} 35-0 || 427-3] 35-7 || W ; =
6 0 08-41 || 545-1 | 37-0 || 423-4} 37-7
547-2| 35-4 || 421-4] 35-9 H i
: ho Ad) 08:99 || 544-1) 37-2 || 424-0} 38-0
543-6| 35-7 || 422-5] 36-2 | H :
8 0 08-65 || 547-0} 37-4 || 424-6) 38-3
542-4] 36-1 | 422-8] 36-8 || H z :
Ge x0 08-65 || 540-5| 37-7 || 429-2} 38-6
543-2] 36-7 || 424-1] 37-5 H
S NO (0) 06-66 || 544-2] 38-2 || 429-0} 39-0
547-7| 37-3 || 423-0} 38-2 || H : - 2
; Ly 6 06-63 || 546-5) 38-7 || 424-2} 39-7
Bee 04))/ 425-1 |, 38-6.) H 12 0 07-84 || 546.6] 39-4 || 418-9] 40.4
547-6] 38-5 || 425-2) 39-0 | H
547-3| 38-7 || 427-0] 39-4 | H 13 O || 25 07-62] 546-3} 40-3 || 415-5] 41-4
546-4] 38-9 | 426-9] 39-4 B 14 O 07-25 || 545-9) 41-1 414-4] 42.2
548-1} 39-0 || 425-1] 39-4 B ilsy 0) 07-45 || 544-5} 41-9 || 410-0] 42.9
542.9| 38-9 || 425-6] 39-3 B 16 O 07-98 || 545-2] 42-7 || 407-5| 43.7
546-1| 38-8 || 422-8] 39-1 B W710} 07-74 || 546-1] 43-3 || 405-4) 44-5
545-4) 38-7 | 421-4] 39-0 B TSe 0 07-40 || 547-8| 44-0 || 402-7| 45.0
542-4] 38-6 || 423-2) 38-9 || W 19 O 07-34 || 547-0] 44-4 || 400-1} 45.4
543-4| 38-4 || 421-4} 38-7 | W 20 O 07-13 || 546-7| 44-7 || 398-5) 45.6
543.8| 38.3 | 418-1] 38-6 | w 2 (0) 07-04 || 545-4 44-9 397-9 45-8
3 22450 07-38 || 544-0] 45-1 396-6) 45-7
544-2} 38.1 411-9] 38-4 | W 5
23000 08-63 || 543-2] 45-1 || 398-2) 45.7
541-8] 38-0 | 414-7| 38-3 || W : x
25° BOe 10 09-26 || 542-5] 45-1 400-1] 45-7
542-6| 37-9 || 414-5] 38-2 || W ze ; = 5
it (6) 10-75 || 543-3} 45-1 400-2} 45.9
544-1) 37-8 || 414-8] 38-2 | W ae :
2) 10 10-45 || 545-1] 45-3 || 399-5] 46.3
545-7] 37-8 || 416-3] 38-3 || W : uf
3) (0) 10:47 || 546-5| 45-6 || 399-7| 46.7
545-1] 37-8 || 418-0} 38-3 B in
4 0 09-00 || 547-0} 46-0 || 395-6] 47-0
544-4] 37-8 | 418-5] 38-3 B 5 A :
5), 10) 08-18 || 546-8} 46-1 392-2) 47-1
543-7| 37-8 | 418-8] 38-4 || H ; : A
6 0 08-11 || 547-4] 46-2 || 389-4] 47.2
545-3} 37-8 | 419-2} 38-5 Jaf = Ss :
70 07-87 || 547-3] 46-4 || 385-4) 47-3
543-7| 37-9 || 418-5] 38-5 H es
e 8 0 07-84 || 546-8] 46-4 || 384-8] 47-7
943-5| 38-2 || 418-2] 38-8 | H a
9 O 07-78 || 546-3 | 46-4 || 386-4} 47-7
546-4] 38-5 || 418-0} 39-2 | H Ae 3
10 O 07-15 || 543-4! 46-3 || 385-6| 47-5
547-4} 38-8 | 418-0} 39-6 | H :
. faba ys} 06-95 || 544-9} 46-1 385-0} 46-8
ee 2219-5) 40°05) H 12 0 06-53 || 537-6] 45-8 || 387-1] 46.3
548-1| 39-5 | 422-1] 40-2 | H
548-9} 39-7 | 422-3] 40-4 H 13 O || 25 06.24 || 541-2} 45-4 || 387-9} 45-8
546-2; 39-8 | 421-7| 40-5 | W 14 0O 05-89 || 541-0} 45-1 387-7} 45-4
538-0} 39-9 | 432-9| 40-6 | W 15 O 07-32 || 543-4| 44-7 || 385-0} 45-1
548-5| 39-9 || 423-3) 40-6 || W (oy (0) 06-25 || 543-0} 44-4 || 383-1] 44-8
548-3] 40-0 || 419-7] 40-5 | W ly 0 07:25 || 542-9] 44-2 || 384-3] 44-5
548-4] 39-9 || 418-1} 40-5 || W 18 O 06-741! 546-7| 44-0 || 384-9} 44-3
DECLINATION. Magnet untouched, Sept. 214—Dec. 294.
Observed 2™ after the Declination, s—0:000140.
Dec. 244 104—2524 10h,
BALANCE.
Observed 3™ after the Declination, k=6-000010.
Term-Day Observations made.
Observer’s
Initial.
Sesas eettoctitsesestittwerwyyyyy adored esse sees sete oe |
=
68 HovurR.Ly OBSERVATIONS OF MAGNETOMETERS, DECEMBER 25—31, 1845.
Gottingen BIFILAR. BALANCE. aed Gottingen } BIFILAR. BALANCE. I Pa
Mean Tine || DECLINA- 7 2.21 Mean Time || Dectina- |... = |=. eS z
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°E | of Declina- TION. Cor- |Thermo-| Cor- |Thermo-| $°2
tion Obs. rected. | meter. || rected. | meter. 5 ze tion Obs. rected. | meter. || rected. | meter. 5 I
(ly AN m. © = Se. Div. 2 Mice. Diy. ° de) ih. Vim. i i Se. Div. e || Mie Div. 2 |
25 19 O || 25 06-29|) 546-8) 43-8 || 386-7} 44-1 B-} 29 4 0 || 25 05-77 543-8 | 36-8 | 428-1| 37-7 | H
20 O 06-93 || 547-6] 43-6 || 386-6] 43-9 || B a) (0) 04-95 | 545-6! 37-3 || 424-5/ 38-4 | H
21 0 07:64 || 549-3] 43-4 || 386-0) 43-8 | H 6 0 04:68 | 547-3) 38-0 || 418-7) 39-1 B
22 0 07-94) 545-6| 43-4 || 391-2) 44-0 || H on) 05-82} 547-1} 38-6 | 414-7) 39-8 | W
2B\ (0) 08-80 || 542-9) 43-4 || 394-3] 44.2 || H 8 0 05-74 546-8 39-2 || 411-5) 40-3 | W
26 0 O 09-69 || 540-8] 43-6 || 396-5] 44-5 | H 90 05-73, 546-2) 39-7 || 409-4) 40-9 | W
Le 0 10-77 || 543-3] 43-8 || 399-2] 44-8 || H 10 O 05-51) 545-3) 40-3 | 409-7) 41-7 | W
270" | 10-90 | 546-8| 44-1 || 402-3} 45-2 || H a!) 05-13 | 546-2) 40-9 || 408-4] 42.5 | H
3P0: | 10-77 || 548-2) 44-4 || 403-5] 45-6 || H 1270 05-50| 547-4| 41-6 | 406-0} 43-3 | H
4°90 | | 109-69) 5482) 4a 201-2) 256 A | a3, .0 | 25 05-73 547-0| 423 || 404-0) toed
3)» 0) 09-10 || 548-1] 44-9 || 399-4] 45-8 || H |
14 0 05-74| 548-5; 43-0 | 401-6) 44-7 | H
6 0 08-66 || 547-5| 45-0 || 396-6] 45-8 || W d Pee d
15 0O 06-26 | 548-2| 43-6 || 396-7| 45-2 | H
i 10 08:31 || 548-1} 45-0 || 394-9] 45-8 || W 2 )
16 0 06-18 | 550-2; 44-0 || 391-3] 45-6 | H
3} 0) 07-84 || 548-5] 45-0 || 391-4] 45-5 || W |
a‘ 7a {0 13-68 | 546-2! 44-7 | 384-1) 46-1 H
9 0 07-76 || 548-9] 44-8 || 391-3] 45-2 || W Les |
18 0 06-52| 556-3, 45-0 | 363-5| 46-5 || H
10 O 07-24 | 546-8| 44-6 || 382-0) 44-9 || W g | el |
19°" 6 07-51 || 556-4) 45-5 | 361-0) 46-8 | W
i) 06:90 || 544-6] 44-3 || 394-5| 44.7 || H 20 a | 540-0 9 | 365-4
12 0 06-36) 544-5] 43-9 || 395-5] 44.2 | H : peer pte o) fig
21730 08-41 | 544-7| 46-3 || 371-0) 47-5 B
13. 0 || 25 07-20]| 544-5] 43-6 || 393-5] 43-8 || H 22 0 06-86 | 541-6} 46-5 | 371-5| 47-5 | W
14 0O 07-15 || 544-4] 43-2 || 394-3] 43.4 || H 23 10 09-31 || 539-6| 46-6 || 378-8) 47-5 | W
16 O 07:04|| 545-3] 43-0 || 392-4] 43.1 | H 130 0 O 10-77 | 533-9| 46-6 || 382-8] 47-6 || W
fo} (8) 07-35 | 544-8) 42-7 || 392-3) 42.7 || H iy 0) 10-89 || 530-0} 46-7 || 395-3) 47-6 || W
7, 0 07-34 || 548-5|. 42.4 || 389-4] 42-3 || H ZO) 15-56 || 533-3) 46-8 || 407-1| 47-7 || W
18, 0 07:98 | 546-0| 42.2 || 391-5| 42-0 H oF 10 01-84| 542-7} 46-9 || 441-7) 47-8 | W
19, 10 07-76 | 545-2| 41-9 || 393-4] 41-7 || W 4 0] 16-82| 540-4] 47-0 || 430-1] 47-9 || W
20 O 07-10| 545-4] 41-6 || 394-0] 41-4 || W 5 0O 06:00} 539-8} 47-1 | 428-6| 48-0 | H
21 0 08-58 | 546-0) 41-3 || 394-6] 41-0 | B 6750 04-60] 534-7| 47-2 | 430-8) 47-8 | H
22 O 08-08 | 542-4} 41-0 || 396-9} 40-8 | W Ca ty 07-29 | 534-5] 46-9 | 438-9| 47-4 | H
Zp) (0) 09-00 | 543-1| 40-8 || 395-0] 40-6 || W 8 0 07-07 | 532-0| 46-6 || 425-7) 47-0 | H
27 0 O 10-50 | 542-4] 40-6 || 398-9] 40-5 || W 9 O || 25 08-08 | 537-3] 46-3 || 398-2) 46-5 | H
ih 11-84 || 542-5] 40-4 || 402-4] 40-5 || W 10 O || 24 59-83] 540-0} 45-9 || 396-5| 46-0 | H
Z! 20 11-74 || 540-8} 40-3 || 403-9] 40-5 | W 11 O || 25 08-55| 534-6| 45-5 || 389-3} 45.4 BY
3 (0) 11-24 |) 532-1) 40-3 || 412-0} 40-5 | W 12 0 06-12) 535-1] 45.0 || 385-5] 44-8 | B Ff
gh Se el ile bec 13 0 | 25 05-56] 533-7) 44-5 | 382-7| 44-1 | B
5 50 11-12]| 541-6] 40-1 || 413-1] 40-5 || W :
= : 14 0 09-12) 538-1] 43-9 | 381-6| 43-4 || B
a (0) 09-02 || 546-0} 40-0 || 412-5] 40-6 || H
pe 15” *0 09-24 | 537-3| 43-3 || 382-2) 42-8 || B
7 (0) 08-99 || 542-9} 40-0 || 413-5] 40-7 || H <
4 16 0 10-90} 538-1] 42-8 | 386-6] 42.2 || B
8 0 07-84 || 542-8| 40-0 || 412-7) 40-8 || H re aay
L770 09-24 || 537-9} 42-3 || 391-3} 41-8 || B
9 0 07-42 || 542-5| 40-1 |} 413-6] 41-0 | H
18 0 10-40 | 539-2} 41-9 || 393-8] 41-5 B
10 O 05-45 || 542-4} 40-3 || 413-8] 41-3 | H aol :
19 0O 12-51 || 540-4] 41-6 || 392-1} 41-3 || H
Wit (8) 06-63 || 545-1} 40-7 || 413-1] 41-7 B 2 0 10-33 | 544-3 3 : H
12 0 06-93 || 547-1| 41-2 || 409.7| 42.3 | B g Be eee bee ol eee |
PA) 12-02 | 541-3] 41-0 || 396-4} 40-8 | W
28 13 0 || 25 07.40] 540-7| 38-1 || 407-3] 37-4 | W 22 0 11-62 || 537-5] 40-7 || 396-2} 40-7 H |
14 0 07-51 || 540-5| 37-7 || 409-4] 37-1 || W Zor 10 12-89 | 535-2] 40-7 || 399-3} 40-7 | H |
15) 10 07-60 || 541-7| 37-4 || 409-9) 36-7 | WJ] 31 0 0 12-08 | 534-7] 40-5 || 405-2] 40-7 | H ;
16 O 08-18 542-7| 37-0 || 410-1} 36-4 || W ib 0) 12-16 || 535-0] 40-5 || 409.2} 40-7 | H FF
7p 0) 07-34 | 543-4] 36-7 || 407-3] 36-0 || W 2740 10-72) 535-4| 40-6 || 418-8} 40-9 || H |
Se 0 07-22) 544-1] 36-4 || 406-8] 35-7 || W 3) 10-70 | 544-0} 40-7 || 423-2} 41-2 | H
19 O 07:07 || 544-3) 36-1 || 409-7| 35-5 B 4 0 10-09} 541-3] 40-8 || 425-7| 41-5 H I
20 O 07-11] 543-6} 35-8 || 410-0] 35-3 B 5 10 09-49 || 543-4) 40-9 | 424-3) 41-6 H
21 70 06:83 || 542-9] 35-6 || 410-6) 35-3 || H 6 0 08-99 | 543-9! 41-0 || 420-0] 41-7 || B
22" 50 06-98 |, 542-8] 35-4 || 406-0] 35-2 | H 1 30 08-99 | 542-6} 41-0 | 417-0} 41-7 | B
23 0 07-87 || 541-8] 35-4 |) 404-1) 35-3 || H 8 0 07-72), 541-5] 41-1 | 416-9| 41-7 Be
PAS) (O)- (0) 08:75 |) 541-3] 35-4 || 410-9] 35-5 || H 9 0 00-53 | 536-9] 41-1 | 418-6] 41-8 | B
UE (0) 06-42 || 542-8] 35-5 || 415.4] 36-0 | H 10 O 07-31 || 541-0; 41-2 | 416-7} 42-0 | B
2 10 07:05 || 535-1} 35-8 || 419-4] 36-5 | H hs 0) 12-35 | 537-8] 41-4 | 413-2} 42-1 | W ]
33° 0) 06-27 || 542-9| 36-3 || 425-9} 37-1 H { 12930 06-04 || 538-4! 41-5 | 410-4] 42-3 || WH
DECLINATION. Torsion removed,—Dec. 294 0%», 0°; 294 194, —11°; 304 9b, +74°*; 314 Ob, 0°, +12°*%. Effect of + 10° of |
torsion = — 0-84. |
Biriuar. Observed 2™ after the Declination, k=0-000140. BALANCE. Observed 3™ after the Declination, s=0:000010.
Dec. 294 1h—304 7h. Magnet with short scale used in the declinometer. The declination at 294 5h—6h, and 30d 8h—9h, has been deduced from observa-
tions of the unifilar.
* Dec. 304 8h. The deflecting magnet vibrated in the declinometer box.
Dec. 30d10h—11h. The declination magnet seems to have a tendency to vibrate through large arcs even after the arc has been made very small by checking.
* Bee 31d 0b, Suspension thread wound up about 3 of an inch; torsion again removed. The declination at 31d 0h deduced from an observation of the |
unifilar. |
eh if “ A> oan ik Aug ok ie
4 mM Daa S Ly f TA ee
y
TERM-DAY OBSERVATIONS
= ae ae: yon
ee
MAKERSTOUN OBSERVATORY,
‘7
1845.
ae
*
5 ae ie ak
—-
2
ia G
S) :
o
“em
vee 4
to Ad
70 TERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845
Mean time JANUARY 22, 23:
0
re unaien Decuina- | BiritaR | BaLance | DeEc.ina- Birizar | BaLance | Decuina- BrritaR | BALANcE | DeEcuina- | Birivaz | BALanc!
servation. TION. Corrected.| Corrected. TION. Corrected..| Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected
Min. Ee te Se. Div. | Mic. Div. Se. Div. | Mie. Div. 4 4 Sc. Diy. | Mic. Div. Se. Div. | Mic. Di
102, 142. 185, 22,
0 25 14-77| 536-0 604-9 | 25 12-90] 535-6 580-3 | 25 12-72| 539-7 578-2 | 25 16-68 | 542-7
5 14-67 | 533-9 607-3 11-98 | 536-5 579-3 12-13 540-9 578-0 16-08 | 541-4
10 14-71 | 536-5 604-9 11-54] 536-6 bg 12-45 | 540-4 577-8 16-48} 540-5
15 13-88 | 538-4 604-2 11-64} 536-1 579-8 12-40 | 541-3 576-2 16-39 | 539-4
20 13-79| 538-5 604-5 11-00 | 534-8 - 12-58 | 540-9 576-4 16-92 | 538-2 (575-1
25 14-10} 539-6 604-2 10-81 | 535-6 581-2 12-56 | 539-5 576-3 17:36 | 537-7 576-0
30 14-37 | 540-0 603-9 11-39| 535-3 581-3 12-72] 539-1 576-2 18-03 | 539-1 576-6
35 14:37 | 537-5 605-1 10-92} 535-1 582-3 12-63 | 538-0 575-7 18-90 | 539-1
40 14-44| 536-0 604-8 10-33 | 533-9 582-1 12-46 | 538-7 575-8 18-82 | 539-4 577-8
45 14-50] 535-0 695-8 10:03} 532-8 582-8 13-07 | 538-7 575-7 19-61 | 540-1 579+
50 13-86 | 536-4 604-6 10-51] 532-8 582-1 14-03 |} 538-6 a 20-00 | 538-0 579-0
55 13-52} 538-6 | 603-6 10-85! 531-8 = 14-75 | 539-5 575-9 | 536-9
114, 15%, 194, 23h,
0 25 13-84| 539-3 | 602-9 |] 25 11-03] 532-8 | 583-3 | 25 15-04] 540-5 575-8 | 25 19-37| 536-0 579-
5 14-21) 539-0 603-1 10:78} 532-8 fs 15-20} 541-2 Ss 18-81 | 537-5 579-
10 14-10} 541-3 | 600-5 10-72| 533-1 583-2 15-04! 542-2 573-4 19-04) 538-1 579-6
15 15-02} 541-4 601-4 10-65 | 533-8 584-0 15-17 | 542-3 573-2 19-51 | 537-8 580-3
20 15-22} 540-9 601-8 11-03 | 534-3 m. 15-04 | 542-0 571-2 18-85 | 538-5 579-4
25 15-74| 540-6 598-4 11-19} 533-9 583-8 14-46} 542-0 ss 18-37 | 542-1 577-6
30 07:65 | 548-5 590-0 11-21} 534-0 a 14-20} 542-1 570-2 18-48 | 541-8 578-4
35 01-07 | 564-3 582-3 11-61 | 533-3 584-3 13-72} 543-1 i 17-42) 542-5 578-5
40 01-07} 572-9 578-9 10-87 | 532-6 584-5 13-61} 543-4 570-0 18-68 | 543-0 580-5
45 03-57 | 574-6 577°3 10-94} 532-5 | 13-47] 543-1 ps 19-84} 542-7 581-6
50 06-09| 577-0 574-3 11-30} 531-6 586-4 13-16| 543-9 570-0 20-63 | 543-5 582- 2
55 10:31) Slel Ws oiva-7 11-68 | 532-0 | cs 13-61 | 544-1 | _ 541-9
12%, 164, 204, oh,
0 25 14-18| 558-4 573-8 | 25 11-69| 533-6 586-0 | 25 13-32| 543-9 571-1 ] 25 21-81| 541-8 582-6
bs) 14-80 |} 554-2 571-8 12-11 534-1 585-1 13-56} 544-3 574-5 21-59} 540-4 582-1
10 17-98 | 546-4 573-0 11-37 | 535-1 a3 13-29| 545-6 576-9 20-18} 538-0 581-5
15 20-72| 534-6 576-3 11:55 535-4 584-4 13:10| 544-7 578-5 19-49} 540-7 581.
20 22-03 | 524-9 578-6 11-61) 533-9 584-7 13-84} 544-5 578-0 19-42} 538-4 581-5
25 21-46| 518-5 580-8 10:94 | 534-7 583-9 14-21) 546-0 576-5 19-19} 538-3 re
30 17-73 | 519-3 580-0 11-27 535-8 - 14-46| 546-2 | 574-6 18-45 | 539-0 579-7
35 14-44| 524-8 578-8 11-48 | 533-9 584-2 14-46 | 545-3 573-1 17-94! 538-2 580-1
40 12-46} 530-0 578-2 11-10 | 535-3 583-1 14-53 | 546-4 571-0 17-27| 538-2 | 579-6
45 11-64) 533-2 578-4 10:94) 536-3 33 14-70 | 546-3 570-4 17-20| 538-2 i
50 12-16) 535-4 578-5 10-63 | 535-4 581-8 14-89 | 544-8 569-4 16-59| 534-7 E.
55 12-70| 533-4 | 380-5 10-30} 536-7 581-5 13:79 | 548-6 568-7 539-5
135 172, 21%. 14,
0 25 12-29) 532-6 579-9 | 25 11-37| 537-5 583-3 | 25 14-68] 546-4 569-0 | 25 16-60| 540-6 579-5
5 11-35) 533-5 579-8 11-84] 537-7 585-6 14-53 | 544-8 a 16-77 | 540-0 582.
10 11-05 | 535-4 580-1 12-28 | 537-7 585-8 14-65 | 544-5 570-6 17-15 | 541-9 583-4
15 11-30) 536-5 579-4 12-43 | 538-2 585-5 14-30 | 544-7 570-6 18-25 | 542-0 | 584-6
20 11-88 | 536-7 579-5 12-62) 539-9 584-3 15-01! 546-8 569-8 18-94! 543-9 585-0
25 12:45 | 537-3 580-6 13-14] 539-1 584-2 15-24} 548-7 567-9 20-29 | 544-4 586-6
30 13-25) 537-9 580-5 12-75| 538-0 583-3 16-05 | 550-1 566-9 20-05 | 541-5 586-0 }
35 13-61 | 537-9 579-5 12-35! 539-0 583-1 16-82 | 549-1 567-2 19-59} 539-1 586.1
40 13-76 | 537-6 579-5 12-75 | 539-6 581-6 16-82} 548-2 | 566-9 18-10} 536-1 584:
45 13-91 | 537-6 580-2 13-00} 539-6 581-4 17-06 | 545-8 567-3 16-77 | 535-8 585-d
50 13-69 | 538-6 578-9 12-72} 539-8 580-9 17-09 | 545-3 568-0 18-34| 537-7 587
55 13-70! 536-6 578-9 fee eee 540-9 579-5 16-70 | 543-5 569-1 538-6
BIFILAR. Observed 2™ after the Declination, k=0:000140. BALANCE. Observed 3™ after the Declination, s=0-000010.
The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
Observations of Magnetometers.
When double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the previous
position being appreciable, the micrometers were not altered. Wi
Jan. 22411» 25m. Declination magnet commenced moving eastwards. 11 39™. Bifilar reading, 569°0. 115 44™. Bifilar reading, 5740,
. ah
ff
nq
.
TERM-DAy OBSERVATIONS OF MAGNETOMETERS, 1845.
| Gottingen JANUARY 22, 23. Frpruary 21, 22.
Mean Time
j of
Declination
bservation.
BALANCE
Corrected.
BIFILAR
Corrected.
DEcuINA- BirinaR | BALANCE
TION. Corrected. | Corrected.
BALANCE DECLINA-
Corrected. TION.
Mic. Div. ds
BIFILAR
Corrected.
DECLINA-
TION.
BALANCE
Corrected.
Mic. Div.
BIFILAR
Corrected.
DECLINA-
TION.
§ 4 Se. Div. Mic. Diy.
| Min. hae Se. Diy. Se. Div. Se. Div. | Mic. Div.
Qh. 62, 104, 145.
iBoee 25 19-75| 538-4 539-3 | 605-4 | 25 14-53| 537-0 | 554-1 | 25 13-81| 534-6 | 508-7
5 19-31} 537-2 | 594-1 539-7 | 604-1 13-36 | 536-5 | 553-0 13-34] 533-6 | 510-2
} 10 20:27| 536-5 | 596-3 541-0 | 604-1 12-13) 535-4 | 552-6 12-83 | 534-2 | 515-5
15 20-99) 539-0 | 598-4 541-0 | 601-0 11-42] 534-3 | 553-1 12-35| 533-5 | 516-8
20 20:77 | 534-4 | 601-1 540-1 | 600-1 10-58| 532-2 | 552.4 12-23 | 534-2 | 518-8
25 20-52| 535-0 | 603-7 539-8 | 599.2 09-39} 533-1 552-1 11-95| 534-7 | 519.9
30 20-27| 537-6 | 605-5 538-9 | 599-3 08-45 | 532-3 | 552-8 11-81] 534.9 | 522.5
35 19-82] 532-5 | 608-5 539-2 | 598-0 07-94 | 533-5 B 12-01) 534-3 | 525.4
40 17-40] 532-5 | 608-6 539-0 | 596-2 07-37 | 534-4 | 552-5 12-40| 532-8 | 527-1
45 17-33) 534.3 | 610.4 539-3 | 595-7 06-97 | 535-4 | 551-9 12-02) 533-6 | 528.4
50 17-:04| 529-2 | 614-0 539-7 | 595-7 06-76 | 536-8 | 550-5 12-28) 534.2 | 531-4
525-4 | 616-8 540-2 if 07-31 | 538-6 | 549-3 12-89 | 533.4 3
3h, : 114, 152.
0 25 17-12| 525-2 | 616-6 540-4 | 594-1 | 25 08-11] 540-6 | 548-9 }| 25 12-28] 533-3 | 533.4
5 18-07| 526-8 | 615-3 540-2 if 09-05 | 537-2 | 547-8 11-91} 533-9 | 535-9
10 18-90] 527-5 | 615-1 540-1 | 592-6 08-61] 538-6 | 546-5 11-69 | 534-2 | 537-4
15 19-78| 524-8 | 615-7 540-6 | 591-1 09-19 | 540-1 544.1
20 20-85| 525-3 | 614-5 540-4 - 09-19} 540-9 | 542.8
25 21-57 | 525-2 | 614.3 539-6 | 590-2 10-03 | 537-2 | 542-4
30 21-07 | 526-6 | 608-8
35 20-77 | 528-6 | 608-2
40 19-61) 532.4 | 609.4
45 19-04 | 535-1 611-9
50 18-84 | 534-8 | 610-4
538-4 yi 09.12| 537-6 | 541-4
539-7 | 590-6 09-60| 534-9 | 541-6
540-0 | 589-7 09-76| 532-8 | 541-2
542-2 ‘ 09-89| 531-9 | 540.9
538-7 | 592-8 09-80| 533-0 | 540-7
531-0
: cM
535°8 593-9 | 25 08-82| 527-3 540-5
535-1 | 597-1 07-60) 527-1 041-1
qh
5 18-60} 541-9 | 613-4
10 19-10] 541-5 | 615-6 534-8 of 07-74| 525-4 | 541.8
iG) ae 09-05 | 528-0 | 540-7
532-9 | 599-9 10-67 | 529-4 | ......
25 19-28 | 542-4 | 619.7 533-1 id 11-61| 531-5 | 534-2
30 19-78] 540-9 | 622-4 533-1 | 603-3 13-83| 531-0 | 532-1
532-8 “ 15-79| 533-0 | 528-5
532-2 | 606-6 18-21| 531-0 | 523-6
530-8 18-40] 528-5 | 519-7
528-2
BIFILAR. Observed 2™ after the Declination, k=0:000140, BALANCE. Observed 3™ after the Declination, <=0:000010.
nee, The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
Observations of Magnetometers.
“When double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the previous
position being appreciable, the micrometers were not altered.
Jan. 23210". BHxtra Observations made.
Gottingen
Mean ee
of
f Declination
| Observation.
Min.
TERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845.
Ferpruary 21, 22.
DECLINA-
TION.
25
25
25
25
,
13-22
12-65
13-32
13-19
12-62
12-72
12-04
11-98
12-82
13-29
13-66
14-13
13-47
14-03
14-26
14-87
14-40
14-03
13-23
12-83
12-25
12-65
12.42
12-45
12-62
11-72
11-51
11-77
12-06
11-25
11-41
12-67
12-11
11-95
13-07
13-16
13-52
13-76
14:77
14-64
11-44
15-85
15-62
14-91
14-91
15-05
16-32
16-35
BIFILAR
Se. Div.
BALANCE
Corrected. | Corrected.
Mie. Div.
543-6
542-8
9
544-4
543-4
541-7
541-6
541-5
542-0
541-7
540-7
540-4
540-8
539-3
538-1
538-3
537-7
536-7
536-1
536-6
536-0
538-1
538-3
537-5
537-9
537-6
537-5
538-2
539-5
540-0
539-3
540-2
540-1
539-2
539-0
539-1
537-0
536-3
537-4
539:3
DECLINA-
TION.
25
25
25
BIFILAR
Se. Div.
pom
518-4
519-5
520-9
521-4
525:8
525-7
527-0
529-1
527-3
528-1
526-9
Zan
529-5
Corrected.
528-1 |
BALANcE
Corrected.
BIFILaRz
Corrected.
DECLINA-
TION.
BALANCE
Corrected.
BIFILAR
Corrected.
DEcLINA-
TION.
BALANCE
Corrected.
BIFILaR. Observed 2™ after the Declination, k—=0-000140.
Mic.Div. | ° ’ Se. Div. | Mic. Div. Sc. Div. | Mie. Div. J
gh. 6h,
548-2 | 25 21-44! 533-3 | 564-9 533-7 | 605.8 |
G5 20-65! 533-0 | 564-9 535-4 | 603-5
548-4 20-30} 535-3 564-8 535-6 | 600-0
” 20-79| 536-8 565-6 . 535-8 | 598-2
549-0 20-11; 535-1 566-8 16-45| 536-8 | 594-0
5 19-41} 536-2 566-7 16-48} 538-0 | 591-7
548-9 19-37 | 536-0 566-5 16-32} 539-0 | 589-7
HS 19:37 | 538-5 566-6 16:59) 538-8 | 587-2
eS 19-14) 538-7 567-4 16-41} 540-7 | 583-6
548-8 19-49 | 540-0 568-5 15-71) 542-3 | 582-6
” 20-43 | 540-6 | 571-0 15-32| 543-3 | 582-2 |
25 19-76| 535-6 | 573-3 15-47, 540-1 582-6 |
3h, 7h,
549-4 | 25 19-19| 532-5 573-6 | 25 15-92| 538-8 | 581-8
“f 18-32] 531-6 | 574-2 16-12| 536-6 3
7 18-41) 533-1 574-9 15.94) 538-7 | 583-3
549-7 19-28| 537-7 | 575-7 15-88) 539-4 | 581-7
= 20-13} 539-4 | 577-2 15-44! 539-2 | 580-6.
D 20-50} 538-1 579-8 15-09| 538-2 | 579-1.
549-9 20-09| 535-2 | 580-7 15-12} 538-5 | 578-5 _
5 19-59| 535-4 580-4 14-98| 539-5 577-2 |
5 19-51} 535-2 | 581-2 14-53 | 539-6 | 575-8
Ss 19-10} 536-1 582-9 14-30| 540-2 | 575-3
551-4 18-94| 537-7 583-1 14-17) 541-5 | 574-1
ee 19-62} 541-4 583-4 14-20| 542-7 573-0
4h, gh,
552-2 | 25 19-29! 536-9 | 586-3 | 25 14-33] 541-8 573-0
» 19:93 540-3 586-7 13-99} 542-3 572-7
551-8 20-67 | 540-5 589-9 13-91 | 540-2 | 575-2.
+5 21-56| 536-6 | 592-9 14-03 537-8 576-7 |
55 20-40| 527-7 | 597:8 14-43 | 537-3 576-5
553: 19-91} 526-4 | 600-2 13-86 | 537-2 Pe
5 19-37| 523-9 | 602-0 13-56| 536-2 | 578-8 |
a 17-74.| 527-2 55 14:01} 536-3 578-7 |
554-6 16-82| 519-1 606-7 13-94| 535-9 580-0
555-9 16-65} 513-8 | 608-4 13-63 | 537-3 579-7
os 14-67| 514-0 | 613-7 13-43} 537-4 | 579.0 |
3 11-61} 520-4} 614-1 13-02] 538-0 | 577-2
5h, gh,
556-6 | 25 09-98| 527-5 | 617-0 | 25 12-09) 541-8 | 575-9
557-6 08-41] 529-3 | 619-5 12-72} 540-0 | 578-1
558-6 08-58} 535-3 621-0 12-02} 540-7 | 578-0 |
559-5 09-26| 541-2 | 623-5 12-40} 538-0 | 577-7 |
559-3 10-47| 540-4 | 625-8 09-35| 534-0 | 578-2
559-5 11-07} 543-9 | 622-6 06-54] 534-9 | 578-2
559-7 11-81} 540-8 | 624-3 05-79} 533-7 | 579-3
559-5 12-46} 540-4 | 622-3 02:99} 536-8 579-2
560-4 14-18} 540-9 | 619-2 02-15] 542-7 | 578-7)
561-9 15-91} 538-3 | 616-4 03-75! 543-6 | 578-7 |
562-8 16-33 535-6 | 611-0 04-64|] 545.3 578-0
563-8 15-88] 533-7 | 610-3 05-52} 546-1 577-0 |
BALANCE. Observed 3™ after the Declination, s=0-000010.
—
The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
Observations of Magnetometers.
When double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the pre |
position being appreciable, the micrometers were not altered.
aI
1Sttingen
TERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845.
Marcu 19, 20.
73
Poca pune
jeclination DECLINA- BiF1Lar | BALANCE DECLINA- BiFILar | BALANCE DECLINA- BIFILAR | BALANCE DECLINA- BIFILAR | BALANCE
poservation. TION. Corrected. | Corrected. TION. Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected.
Min. 2 y Se. Div. | Mic. Div. © v Se. Div. | Mie. Div. P f Se. Div. | Mic. Div. ¢. 4 Se. Diy. Mic. Div.
102. 144, 18h, 29h,
0 25 06-51| 527-7 570-1 | 25 03-21] 535-5 467-5 | 25 06-91 | 529-4 474-9 } 25 11-84) 526.4 523-4
5 08-56 | 521-5 573-1 01-93 | 532-8 a 08-26} 528-0 476-6 13-52 | 523-4 524-8
| 10 08-50} 522-0 573-0 00-85 | 529.9 464-8 07-60} 530-2 477-0 13-29 | 522-1 525-2
fed!) 09-10} 530-7 570-6 00-77 | 524-9 465-6 07-85| 530-1 480-5 12-43 | 517-3 525-3
20 10-56 | 534-4 567-1 } 25 00-31 | 522-4 464-1 08-92} 531-77] 482-1 14-77 | 515-3 526-5
25 11-05] 535-1 565-2 | 24 59-44| 519-9 3 08-32) 535-2 482-9 13-86 | 517-4 526-2
30 11-71} 535-1 563-9 | 25 00-20) 518-5 465-3 10-63 | 534-9 484-5 14-84 | 525-3 527-8
| 35 12-78} 537-8 560-2 01-54 | 517-6 467-0 10-36} 536.8 482-6 15-51) 515-2 527-9
40 14-40} 541-4 553+1 04-39 | 516-2 470-3 09-93 | 538-3 482-6 16-15} 513-5 oe
| 45 15-59 | 538-6 546-8 07-34 | 513-4 ° 10-67 | 538-3 484-6 14-80} 511-2 529-9
50 15-86 | 538-9 541-7 09-35 | 510-5 469-8 11-51} 537-4 485-5 15-47 | 511-9 532-5
| 55 17-71 | 540-8 537-9 11-99} 511-1 ba 11-62! 536-4 486-5 16-84} 512-5 534-2
112. 152. 192, 23h.
0 25 21-46| 536-4 533-2 | 25 13-77| 515-0 468-7 | 25 12-26| 537-4 485-6 | 25 15-47| 514-9 534-4
5 21-27) 533-6 527-0 14.24} 515-0 465-3 11-42) 540-1 ” 13:79 516-8 532-5
10 19-96| 528-6 520-1 14-51) 519-6 459-1 10-09 | 540-2 484.9 12-42 | 518-3 532-0
15 16-41 | 529-6 515-8 14-30} 525-3 458-5 10-01 | 538-4 486-2 12-22} 521-1 532-5
20 13-86] 532-6 | 514-1 14.33) 528.3 457-1 09-19 | 537-3 489-5 13-43 | 525.4 534:8
25 13-32 | 534-2 513-3 13-91 | 532.4 456-0 09-08 | 537-4 491-0 15-51 | 520-8 538:3
30 12-55 | 535-6 513-6 13-97 | 534-0 453-4 09-89 |} 536-2 493-6 15-36 | 519-4 539-3
35 11-17| 537-4 | 511-5 14-06] 535-6 | 449.6 10-23 | 535-7 496-0 15-78 | 520-8 539-9
40 10-72} 538-6 510-1 13-46 | 535-7 és 10-18} 535-7 496-7 16-38 | 522-5 539-2
45 10-33 542-8 | 509-0 11-91] 535-8. | 447.6 10-34 | 534-8 499.2 17-12] 523-4 539-0
50 11-37] 538-2 508-9 10-23 | 537-5 446-1 10-74} 533-0 502-3 17-33 | 524-2 538-5
55 11-15] 533-0 506-9 08-73 | 536-7 Pe 09-89 | 533-3 | 502-5 18-07 | 523-3 538-8
125, 164, 20%, oh,
/ 0 25 09-69) 530-0 506-3 | 25 07-34| 535-5 447-4 | 25 09-46) 533-9 503-1 | 25 17:94] 524-6 538-1
5 08-11} 531-3 505-7 06:76 | 536-5 451-5 09-20} 534-1 506-4 18:37 | 528.2 536-8
| 10 07-32) 534-1 504-5 06-64 | 535-1 454-0 08-82} 533-5 507-6 18:70 | 527-7 536-8
15 06-81 | 538-9 504-1 05-76! 536-2 458-1 08-43] 533-4 | 508-2 19-37 | 528-4 536-6
20 08-77 | 537-8 502-6 05-38 | 537-5 3 08-55 | 534-2 510-7 19-44 | 526-9 536:3
25 09-96 | 535-5 498-5 05-25 | 538-8 458-9 08-85 | 532-5 512-8 19-78 | 529-2 536-1
30 10-27} 532.2 496-9 05-27 | 538-0 os 08-92} 531-4 513-8 20-02 | 531-7 534-5
35 10-06 | 529.1 491-4 04-84 | 537-1 461-0 08-68} 531-8 516-7 21-23 | 531-5 534:3
40 09-12} 527-5 489-3 04-61 | 537-0 463-0 08-82} 531-0 517-5 21-43 | 531-2 533-8
45 09-73 | 524.5 487-4 04-15] 537-0 A 08-46 | 531-2 519-0 21-41 | 531-4 d03'4
50 10-06 | 523-1 484.7 04-24) 536-8 464-8 08:92] 533-6 Ae 22-10} 531-1 532-1
55 11-10} 524.9 484-1 04:19} 536-8 466-6 09-49 | 531-6 520-2 21-66 | 528-1 532-4
134, 17}, 21h, 1h,
0 25 10-60) 527-6 481-1 | 25 04-95 | 534.4 469-1 | 25 09-39| 532-0 519-9 | 25 21-23) 525-9 532-6
5 09-79| 528.4 478-4 05-08 | 533-2 467-2 09-49) 531-7 520-5 21-10} 527-1 531-8
10 09-86} 529-5 477-0 05-49} 532-3 471-5 10-01} 530-9 521-2 20:85 | 526-8 533-4
15 09-54} 532-4 476-8 06-61 | 531-6 472-6 10-09} 531-1 521-4 21-17} 526-1 534-6
20 09-29) 538-3 : 07-78 | 530-9 475-8 10-27 | 527-7 521-7 20-72) 527-2 533-9
25 10-20) 537-1 476-0 08-72} 531-6 475-9 09-10} 529-0 521-7 20-60 | 533-4 532-1
30 09-33} 539-6: | 475.2 09-32} 532-4 476-4 08-88 | 528-4 521-7 22-91 | 546-5 530-5
35 08-26 | 542-0 475-2 09-54) 533-6 475-9 08-85 | 530-6 sie 22-64] 539-5 531-4
40 07-20 | 543-3 472-9 10-09} 530-8 tr 09-79 | 530-8 522-5 22-92 | 539-8 530-9
45 05-63 | 540-4 O4 09-77 | 530-4 473-8 10-98 | 531-1 523-1 22-67 | 534-9 531-8
50 04-79} 540-1 470-7 08-92} 526-6 472-9 12-46 | 528-1 524-1 22:27 | 532-9 531-6
55 03-58 | 538-3 5 07-31 | 528-8 Fi 11-66} 526-1 523-5 22.24) 534-1 531-8
Birizar. Observed 2™ after the Declination, s—0-000140. BALANCE. Observed 3™ after the Declination, k=0:000010.
The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
Observations of Magnetometers.
When double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the previous
position being appreciable, the micrometers were not altered.
Mar. 194 9h—10b, Extra Observations made.
MAG. AND MET, oss. 1845,
74 TeRM-DAy OBSERVATIONS OF MAGNETOMETERS, 1845.
Gottingen Marcu 19, 20. AprIL 23, 24, .
: poe q
Bpclination Decuina- | Biriuar | Batance | Decuina- | Birmar | Batance | Decrina- | BiriaR | BALANcE f Deciina- | Birizar | BALAnce
Civ bon: TION, Corrected. | Corrected. TION. Corrected.| Corrected. TION. Corrected.| Corrected. TION. Corrected. | Corrected.
Min. G 4 Se. Diy. ’ Mice. Div. es 2 Se. Diy. | Mic. Div. FE 4 Se. Div. | Mic. Div. F 4 Se. Div. | Mie. Diy,
a 6 102. 142,
0 25 22-33 | 535-3 531-4 | 25 06-46] 545-5 783-5 | 25 09-47| 544-5 540-8 | 25 10-50) 542-6 523-5
5 22-13) 537-1 530-6 04-69 | 554-9 818-1 09-42| 543-2 541-3 10-16 | 544-7 Pr
10 21-90) 538-7 529-9 06-84| 539-6 | 828-0 09-35| 543-5 541-2 09-87 | 544-6 522-1
15 21-97 | 537-0 532-0 10-53} 530-7 | 824-6 09-73 | 549-6 538-5 09-73 | 542-6 524-1
20 21-48} 536-4 532-6 10-48 | 528-9 | 808-4 10-56] 551-5 535-1 09-40; 540-2 524.3
25 21-26) 538-6 533-0 10-36 | 526-3 789-6 09-89 | 550-2 532-2 09-02) 540-4 524-5
30 21-32} 538-9 532-1 10-23 | 528-8 766-7 08-12] 543-3 $s 08-79 | 540-9 s
35 21-09 | 539-8 533-0 13-47 | 533-5 748-4 07-00 | 539-2 534-9 09-05 | 540-7 525-5
40 20-89 | 542.4 531-8 17-06 | 528-9 740-0 06-98 | 539-1 537-1 09-22) 539-4 s
45 20-89 | 543-2 532-1 17-06 | 525-2 730-5 | 07-55 | 538-9 538-6 08-85 | 544-1 525-9
50 20-56) 541-5 532-3 17-12| 527-0 723-3 08-26] 542-6 - 09-73 | 543-3 524-4
55 20-02) 543-7 531-9 15-99 | 530-9 710-1 } 09-13 | 547-2 534-0 09-27 | 542-8 Ss
a we 115, 152.
0 25 20-36 | 545-0 531-4 | 25 15-51] 533-7 699-0 | 25 10-13| 546-5 533-5 | 25 08-88 | 542.4 523-5
5) 20-00 | 546-0 530-8 15-31} 530-4 699-2 09-82 | 542-7 = 09-08 | 540-5 F.
10 20-11 | 547-2 530-9 14-46 | 534-5 679-2 09-87 | 541-5 535-9 08-82) 540-6 g
15 19-79 | 545-7 532-1 15-12} 532-7 669-1 09-33 | 542-7 x 08-41) 541-0 523-6
20 19-64} 543-1 534-0 15-58} 531-9 658-9 09-47 | 543-4 533-8 08-93 | 541-3 023-9
25 19-08] 545-4 533-5 15-49 | 532-4 648-9 09-29 | 542-8 Ae 09-42} 540-2 %
30 19-91 | 546-5 535-5 15-25 | 536-7 639-7 09-76 | 541-2 534-1 09-73 | 538-5 526-0
35 19-39 | 550-4 537-6 14-91 | 541-9 630-5 10-30 | 537-4 536-5 10-06 | 538-1 526-2
40 19-66 | 537-8 542-8 15-45} 541-6 625-6 10-23 | 537-6 am 10-16 | 538-7 523-6
45 18-10} 543-2 541-8 14-98 | 538-3 623-4 | 10-31 | 542-4 533-2 09-76 | 539-3 x
50 19-07 | 551-4 542-3 14-30} 539-1 620-1 11-10} 541-4 531-9 09-26 | 539-9 522-2
598 18-60} 552-5 545-0 14-43 | 535-2 619-3 10-47 | 541-8 529-6 09-02) 540-4 és
4h. 8h. igh: 164.
0 25 18-41 | 547-5 545-9 | 25 14-55! 535-1 616-2 | 25 10-97| 544-4 528-9 | 25 09-02) 540-3 i
5) 18-03 | 537-4 550-0 14-73 | 532-4 616-4 10-43 | 542-3 5 08-73 | 539-5 520-5
10 17-63] 529-4 550-5 15-01 | 530-6 615-0 10-33 | 541-9 = 08-25 | 539-6 és
15 17-20| 538-1 348-3 13-86} 534-1 | 619-2 10-13 | 541-7 528-9 08-11) 538-2 522-5 |
20 17-29] 554-2 | 545.9 13-77 | 534-6 607-6 10-09 | 540-5 = 07-65 | 538-1 523-3
25 18-03 | 567-1 547-6 13-69 | 535-0 603-3 10-16 | 540-4 > 07-71 | 537-2 523-1
30 17-63 | 562-4 553-0 13-36} 535-2 601-0 09-93 | 540-1 530-3 07-52) 536-6 =O
35 17-26 | 555-9 557-0 13-50| 536-1 599-3 09-15 | 538-4 A 07-34 | 536-6 530-8
40 16-86 | 557-3 559-5 13-77 | 536-0 | 596-4 10-04 | 539-6 532-1 07-20 | 536-1 537-7
45 16-99 | 559-7 562-1 13-72 | 537-1 | 592-5 10-36 | 541-3 07-29 | 535-9 531-3
30 16-59 | 560-6 566-1 13-72] 537-1 590-7 10-60 | 542-4 _ 07-35 | 536-3 528-2
By) 17-22) 557-6 571-8 13-29} 536-7 589-3 10-90 | 542-6 531-0 07-47 | 535-7 %
au gh. este 175.
0 25 17-78| 562-6 575-6 | 25 13-14] 536-7 586-7 | 25 10-56] 540-5 531-9 | 25 07-40) 536-0 526:
B) 18-87 | 564-5 583-6 12-98 | 535-7 584-4 10-88 | 540-9 531-8 07-35 | 536-2 530-2
10 20-20 | 554-7 995-2 12-92| 535-7 | 583-6 10-77 | 539-7 4 07-34 | 535-9 530-
15 20-20} 543-8 610-3 13-25 | 536-3 582-0 10-45 | 539-4 531-3 07-54| 536-1 531-4
20 20-85 | 549-1 627-8 13-39 | 535-8 | 580-7 | 10-83 | 539-5 532-5 07-67 | 536-1 532-4
25 18-55} 548-1 | 648-9 13-43 | 535-8 | 578-8 10-88 | 540-9 + 07-49 | 536-5 533-2
30 16:59 | 535:9 | 670-1 13-52 | 535-4 | 578-0 | 11-17} 539-8 532-6 07-35 | 536-6 i,
395 13-34] 532-1 674-9 13-47 | 535-8 | 577-4 11-32) 540-8 532-4 07-24 | 536-6 533-7
40 12-45] 544-9 646-7 13-52 | 536-3 5795-9 | 11-17} 541-8 530-2 07-18 | 536-8 533:
45 12-42 | 546-0 | 652-1 13-52 | 536-0 573-7 11-25) 543-7 527-4 07-31} 536-9 533:
50 11-91] 542-0 674-9 13-52 | 535-6 572:8 11-74 | 545-4 526-7 07-04 | 536-7 3
55 10-63 | 541-0 | 717-7 13-66 | 536-0 572-2 | 11-19} 544-8 re 07-35 | 536-5 532-9
BIFILAR. Observed 2™ after the Declination, k=0-000140. BALANCE. Observed 3™ after the Declination, k=0-000010.
The temperature of the bifilar and balance ma
gnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
Observations of Magnetometers.
When double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the previous
position being appreciable, the micrometers were not altered. _—
March 204 155. Extra Observations made. 1
TERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845. ite
tingen APRIL 23, 24,
ao e
ination DECLINA- BIFILAR | BALANCE DEcLINA- BIFILAR | BALANCE DECLINA- BIFILAR | BALANCE DECLINA- BIFILAR | BALANCE
rvation. TION. Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected.
Min. eae Sc. Diy. | Mic.Div.f ° ’ Sc. Div. | Mic. Div. ° ’ Se. Div. | Mic.Div.f ° / Se. Div. | Mic. Diy.
18h, 22h, on, 6h,
0 25 07-13 | 536-5 | 534:3 | 25 08-95| 522-7 | 542-8 | 25 22-24) 537-4 | 521-5 | 25 18-85| 560-7 | 571-1
5 07-11 | 536-1 | 534-5 09-00) 521-4 | 543-1 22:47| 538-2 | 522-0 18-32] 563-5 | 574-0
10 07-29) 536-5 | 534-3 08-66 | 522-7 | 542-1 22-78| 543-2 | 521-9 18-55) 567-2 | 574-3
15 07-81| 536-4 | 534-8 08-59| 523-4 | 541-4 93-14} 540-7 | 522-9 18-32| 568-6 | 575-5
20 07-81 | 535-8 | 535-0 08-79 | 523-2 | 541-9 23-38) 541-6 | 524-6 | 18-55 | 565-8 | 580-8
25 07-72 | 535-1 | 535-6 08-90} 523-3 | 541-5 22-91| 538-4 | 526-1 17:98| 562-1 | 583-2
30 08-05 | 534-3 aS 09-26) 522-1 | 541-9 23-54| 539-9 | 527-9 18-34) 560-3 | 587-4
35 08-18} 534-4 | 536-4 09-26| 521-1 | 542-1 23-48 | 535-7 | 530-4 18:90} 550-6 | 591-4
140 08-48 | 535-6 | 536-7 09-08} 521-4 | 541-0 22:75| 529-4 | 532-6 | 18-23| 547-2 | 594-0
145 08-32} 535-1 | 536-2 09-47 | 523-3 | 539-5 22:40! 534-6 | 532-6 17-39| 547-4 | 5
150 08-38 | 535-6 | 536-0 10-27| 524.2 | 536-7 22-85] 535-0 | 533-0 16:39| 546-1 | 592-0
55 08-65 | 536-0 - 10-70| 524-2 | 536-6 23-271 526-7 | 536-8 15-67 | 543-7 | “5
19%. 23h, 3h, fia
| 0 25 08-56| 535-6 | 537-0 } 25 11-34| 523-4 | 537-1 | 25 21-19| 528-4 | 537-2 h 25 15:85] 545-6 | 593-5
5 08-26) 535-5 | 538-0 11-64| 523-2 | 536-9 21-53) 538-3 | 535-0 | 14-80} 546-9 | 592-2
110 08-28 | 535-7 | 537-6 11-88 | 522-2 | 536-5 22-44! 543-1 | 532-4 | 14:73 | 547-4 | 589-3
15 07-71| 535-6 | 537-7 12-33 | 521-5 | 536-4 22-00) 546-0 | 532-2 f 14-68| 547-0 | ‘
20 08:16} 535-5 | 538-8 12-38) 520-8 | 536-2 22.37| 549-4 | 531-9 | 15-25| 546-8 | 589-0
| 25 08:18} 536-0 | 538-5 12:65 | 521-8 | 535-7 21-93} 548-3 | 531-6 } 14-80| 543-8 | 587-4
30 08-72) 535-6 | 540-1 12-93 | 522-1 534-7 22-27| 555-7 | 530-8 | 14:37| 544-9 | 584-0
35 08-55| 535-0 | 540-0 13-39 | 522-3 534-7 23-19} 558-2 | 530-8 13:99| 544-7 | 584.3
40 08:18} 535-4 | 539-9 13-59} 522-6 | 533-3 22-33) 563-1 530-3 | 13-90} 542-7 | 581-9
45 08:28! 534-9 | 539-9 13-88 | 523-1 | 532-7 22-40; 571-5 | 529-8 § 14:13) 546-5 | 577-9
50 08-14) 535-1 hs 14:17 | 524-47) 531-7 23-31] 578-6 | 529-3 14-23} 544-3 | 577-0
55 08-14| 533-9 | 539-6 14-65} 524-8 | 530-9 22-50| 568-6 | 532-2 | 14:53 | 544-3 | 574-4
208; 04. 4h, gh,
0 25 07-81| 534-1 | 539-6 | 25 14-91} 523-7 | 530-6 | 25 22-11| 565-5 535-1 | 25 14-50] 544-5 572-9
5 07-49| 533-3 | 539-3 14:98} 523-6 he 22-18| 563-9 | 537-5 14-:20| 542-0 iS
10 06:97 | 533-0 5 15-54| 523-3 | 530-7 21-91} 562-1 540-3 13-47 | 544-3 567-2
15 06-93 | 530-6 | 541-1 15-83 | 522-8 | 531-1 21-51) 563-7 540-9 13:09 | 544-6 | ft:
20 07-34| 529-5 | 541-8 16:05} 522-7 | 531-0 21-95| 563-0 | 542-0 12-58) 545-1 | an
| 25 07-82} 530-6 | 541-2 16-25]| 522-9 | 530-6 21-68} 556-8 546-4 12-63 | 546-9 564-0
30 08-34) 530-9 | 541-9 16-75 | 522-5 | 530-5 20-79 | 553-3 | 548-9 12-63 | 546-0 | 563-5
| 35 08-61 | 530-2 | 542-6 16-86 | 522-4 | 529-7 21-04} 552-2 550-2 12-78| 545-4 561-7
40 09-32| 529-7 a 17-26) 522-5 528-2 20-76] 553-6 550-2 | 13:02} 545-2 560-4
45 09-35 | 530-2 | 541-3 17-46 | 522-6 | 528-3 20-82] 552-7 | 551-7 | 13-:00| 546-3 | 558-7
50 09-46} 530-3 | 541-0 17-71| 523-7 | 526-8 20-38| 549-7 | 553-9 | 12-85 Noto 1 || Baees
55 09-60} 530-4 | 539-9 18-00 | 524-8 | 526-0 19-69| 545-6 | 555-4 | 12-98} 543-3 | 556-3
215. 14, 5h. a gh,
0 25 09-69| 530-6 | 540-0 | 25 18-30| 525-1 | 525-9 | 25 19-31| 547-1 | 556-2 | 25 12-65) 543-4 | 555-4
5 10-16) 529-9 | 540-0 18-70} 523-8 | 526-5 18:77 | 545-2 | 556-9 12-62| 543-2 | 554-8
10 09-76| 529-1 | 539-9 18-70| 525-2 | 525-8 19-61 | 551-2 | 555-5 12-89} 542-9 | 554-5
15 09-66} 528-0 | 540-1 19-02} 528-1 525-3 10-82}. 552-4 | 557-0 12-92} 543-2 | 552-5
20 09-56} 527-3 | 540-4 19-51 | 529-2 | 524-6 20-03} 555-9 | 556-2 12-55 | 542-2 | 551-2
25 09-35} 527-7 | 540-7 19-96} 532-9 | 522-4 19-98} 561-9 | 555-1 12-38; 541-8 | 550-5
30 09-33} 525-7 | 541-5 20-56| 535-6 | 521-6 20-25} 563-3 | 556-6 12-15| 541-2 | 550-1
35 08-82} 526-4 | 540-3 20-97 | 535-5 521-4 19-64} 562-0 559-3 11-75 | 541-8 | 548-5
40 09-00} 526-1 | 541-0 21-44| 536-5 | 520-3 19-64} 566-1 562-0 11-61) 543-6 | 547-4
45 08-93} 525-1 540-7 21-70| 536-7 | 520-4 19-51] 561-9 564-5 11-71} 541-5 547-9
50 08-86} 523-9 | 541-8 22-20; 538-6 | 520-6 19:21} 561-7 | 567-9 11-61) 540-6 | 546-6
55 08-88 523-3 | 542-2 22-13| 537-8 | 521-1 19-24} 561-5 | 570-7 11-52} 541-0 | 546-3
| |
Birinzar. Observed 2™ after the Declination, s=0°000140. BALANCE. Observed 3™ after the Declination, k=0-000010.
.
.
|’ The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
Jbservations of Magnetometers.
When double commas (,,) occur in the column for the balance magnetometer,
bosition being appreciable, the micrometers were not altered.
the needle was examined, and no change from the previous
76 TERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845.
Gottingen May 30, 31,
oie :
prec suation Deciina- | Brrinar | BaLANce | Dectina- Brrizar | Batance | Decriwa- | Brrrean | Batance | Decurwa- | Brervar BALAncE
servation. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Correcter
Min. £ ve Se. Div. Mice. Div. 2 te Se. Div. Mic. Div. = 4 Se. Div. Mic. Div. “3 ‘3 Se. Div. | Mie. Diy
104. 14h, 18%, 228.
0 25 10-36| 542-0 530-4 | 25 05-45| 536-6 | 461-6 | 25 03-87| 540-8 458-0 | 25 14-98| 523-6 | 476.8
5 09-82} 540-8 530-3 04-59 | 538-7 > 03-65 | 542-6 | 458-9 | —----.. 524-1 476-2
10 09-57) 542-3 528-2 03-25 | 540-6 455:3 03-63 | 543-8 | 459-3 15-38 | 526-0 | 475-5
15 09-22) 541-5 527-7 01-45 | 541-8 452-3 03-50 | 544-1 460-8 15-74 | 526-1 475.3
20 08-45} 540-5 527-8 00-60 | 541-5 451-0 03-16) 545-2 | 462-9 16-10} 527-3 | 475-1
25 08-25 | 538-2 529-2 00-33 | 539-9 ~ 03-47 | 544-6 464-4 17-04 | 530-1 474.9
30 07-74 | 536-6 530-3 00-20| 538-0 450-2 03-09 | 542-8 | 466-5 17-51 | 532-7 | 472.8
35 07-81) 535-6 529-8 00-42 | 534-9 oy, 02-87 | 542-8 470-6 17-86 | 533-5 472.6
40 07-82) 536-4 528-9 00-17 | 533-7 449-6 03-20| 544-0 | 472-8 18-75 | 530-7 471-6
45 08-06} 536-1 527-7 00-77 | 533-7 449-7 03-50 | 543-2 | 475-5 18-13} 529-8 | 471-0
50 08-18} 537-0 525-3 02-01 | 534-6 a: 03-77 | 542-9 | 476-9 18-45 | 531-4 470-7
55 07-99 | 535-0 523-6 02-60 | 534-8 “ 04-10 | 542-1 478-5 18-65 | 530-4 471-
=
ie 155, 19}, 234, '
0 25 07-13| 534-3 522-4 | 25 02-82) 535-7 444-4 | 25 04-14] 540-9 479-9 | 25 18-04| 527-7 | 471-6
5 06-64 | 533-8 522-0 03-09 | 535-6 442-8 04-31/| 540-4 | 479-6 17-73 | 525-4 472-0
10 05-94 | 531-5 521-0 02-86 | 535-4 © 4: 04-21) 540-1 480-8 17-24) 524-9 | 471-6
15 05-33 | 532-6 518-9 02-82) 534-4 441-5 04-64} 539-6 482-4 18-11} 523-5 | 473.4
20 04-34] 535-9 | 516-9 02-96) 533-3 442-4 04-76) 538-1 483-1 18-18} 523-4 | 473-1
25 02.42| 532-7 514-5 03-27 | 533-0 445-0 04-78 | 536-3 484-2 17-73) 525-9 | 472.4
30 01-36} 531-7 514-3 03-23 533-4 446-2 04-91 | 535-1 484-9 18-61 | 527-7 471-8
35 01-11} 532.7 513-0 03-37 | 534-2 445-6 04-53 | 533-2 | 485-6 19-17} 529-0 | 472.5
40 01-19| 534-2 511-6 03-27 | 533-6 449-1 04-78 | 533-1 485-9 18-63 | 527-5 | 4728
45 01-61 | 535-0 510-9 03-43 533-7 451-9 04-91} 529-1 486-8 18-14) 522-7 | 474.7
50 02-25 | 534.3 509-3 03-23 | 533-9 453-2 04-39 | 528-9 486-8 18-52) 523-3 | 476-4
55 02-91 | 533-9 508-5 03-37 534-1 455-3 04-59 | 526-3 | 487-7 19-24; 521-1 | 478-9
ee 16%, 20% 0.
0) 25 03-70 | 530-8 508-4 | 25 03-81] 534-2 455-0 | 25 04-91) 524-6 488-5 | 25 20-09| 517-7 | 481.
5 04-44! 530-8 507-0 04:07 | 534-2 458-4 05-29 | 522-9 489-2 20-38 | 517-8 483-3
10 05-09! 532.0 504-7 04-37 | 535-2 459-1 05-45 | 521-8 490-4 21:32) 518-6 483-2
15 05-67 | 532-5 501-9 05-02 | 535-8 460-4 07-37 | 522-6 491-2 21-97) 520-7 | 483-3
20 05-76) 531-4 | 499-8 05:49 | 535-9 461-5 07-07 | 518-2 491-6 22-48 | 524-2 | 482.2
25 05-76 | 530-5 498-2 06-06 | 536-8 468-6 06-86} 515-5 492-1 22:47 | 520-2 | 483-8
30 05-32 | 530-4 496-7 06-16 | 537-3 464-8 06-79 | 514-3 492-6 22-57 | 522-1 484-1
35 05-05 | 531-3 494-6 07-07 | 535-0 466-6 06-79 | 513-4 491-9 23-31! 522-1 484-5
40 04:71) 533-4 493-5 07-13 | 534-5 468-7 08-06 | 513-4 491-3 23-68 | 523-7 | 483-7
45 05-00 | 534-1 492.4 07-47 | 533-9 468-9 08:99} 514-6 491-6 23:88 | 525-2 | 483-4
50 05-18 | 533-3 491-7 09-27 | 531-5 469-9 10-20} 514-9 491-1 24-05 | 525-4 | 483-9
55 05-45 | 532-7 | 491-6 10-13 | 530-3 472-9 11-74} 515-8 491-6 24-48 | 524-5 | 485-2
“ 1H ress 2a as
@) 25 05-27| 533-0 490-2 | 25 10-53 | 530-3 472-8 | 25 i3-57| 516-5 491-1 | 25 24-55| 523-7 | 486-3
5) 05-29 | 533-3 488:8 10-95 | 532-3 | 472-1 14-65 | 516-6 489-5 24-67 | 521-5 487-8
10 05-52 | 533-9 486-1 11-69 | 533-7 470-8 14-46 | 516-4 486-7 23-86 | 526-1 487-7
15 05-50} 533-1 483-0 11-44] 535-5 | 467-5 14-92} 518-7 484-2 23-81 | 522.4 491-0
20 05:99 | 532-6 = 11-21] 536-8 | 465-1 14-57 | 518-3 482-4 24:05 | 528-5 489-3
25 06-93 | 532.9 482.4 10-80 | 538-2 461-8 14-85 | 523-0 479-2 24-25 | 549-7 4838
30 | 07-49 | 532-3 479-1 09-89 | 540-4 | 457-9 15-67} 525-0 477-6 27-84| 566-2 481-4
35 07-91 | 532-8 477-0 08-79 | 540-8 455-0 14-31} 521-3 477-4 27-19 | 544-3 488-4
40 07-25 | 532-5 474-0 07-38 | 542-0 | 453-3 13-88 | 521-9 476-5 25-83 | 525-8 497-
EON We 8 eiaecot 531-6 469-5 06-59 | 540-9 | 453-0 14-13 | 525-2 475-5 27-02 | 524-6 498-4
50 06-50 | 531-9 467-9 05-25 | 541-4 | 454-5 14-26 | 526-5 475-4 27-24 | 528-7 496-9
Dd 06-26) 534-1 466-1 04-34 | 541-2 +5 15-32 | 525-3 476-6 28-22 | 539-9 496-6
BIFILAR. Observed 2™ after the Declination, k=0:000140. BaLANCE. Observed 3™ after the Declination, k=0-000010.
The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
Observations of Magnetometers.
When double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the previous
position being appreciable, the micrometers were not altered.
TERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845. i
Gttingen May 30, 31. June 18, 19.
Mean Time
peslination DECcLINA- BiriILaR | BALANCE DECLINA- BIFILAR | BALANCE DECLINA- BiFiLaR | BALANCE DECLINA- BIFILAR | BALANCE
)bseryation. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected.| Corrected. TION. Corrected. | Corrected.
Min. ° ‘ Sc. Div. | Mic. Div. ] ° d Se. Div. | Mic. Div. | ° 4 Sc. Diy. | Mle. Div. } ° ( Se. Div. ! Mic. Diy.
gh. op , 10°. 144,
0 95 29-93) 531-5 500-6 | 25 14-40| 544.2 544-0 7 25 10-63 | 547-9 502-4 | 25 10-16| 546-0 490-3
5 31-34| 531-8 501-8 13-47 | 539-2 547-2 10-53 | 547-9 501-0 10-27 | 546-8
10 33-43 | 537-2 498-4 12-75 | 536-5 550-9 10-47 | 547-5 500-3 10-40 | 546-3 488-9
| 45 34.44| 548.4 | 493-3 12-31| 536-7 | 551-8 10-43 | 547-2 | 500-6 10-34| 545-6 2
20 33-53) 559-4 488-9 11-99 | 536-2 553-5 10-36 | 547-7 500-0 10:07 | 544-9 489-1
25 30-79 | 556-7 490-7 11-62) 538-4 551-7 10-54 | 547-8 499-7 09-93 | 544-9 488-3
30 29.27| 547-0 496-7 11-51} 541-8 550-6 10-61 | 547-4 499-6 09-98 | 544-0 487-7
35 29-16 | 543-5 502-1 11-51 | 543-0 949-3 10-63 | 546-8 499-5 09-56 | 544-5 487-0
40 99.361 537-8 506-9 11-44} 545-6 548-0 10-43 | 547-1 499.0 09-66 | 544-8 45
45 80-10! 536-0 511-5 11-52.) 545-3 546-5 10-38 | 546-0 499-6 09-74 | 541-9 489-1
50 31-26| 532-0 | 516-2 11-57| 540-4 | 546-9 10-40} 544-9 | 499.4 09-33 | 542-7 “
| 55 | 31-86| 533-7 518-5 11-82 | 539-8 044-8 10-30 | 546-3 499.2 09-56} 543-3 489-3
3h, 7. es a2:
0 25 31-52| 534-6 | 520-8 | 25 11-96] 539-6 | 543-2 | 25 10-14| 546-9 | 499-1 ] 25 09-87| 543-6 | 489.5
5 31-75| 538-3 523-7 12-08} 540-4 543-1 10-33 | 547-2 498-3 09-80| 544-4 os
10 31-92| 540-1 | 525-5 11-91) 542-8 | 540.2 10-33| 546-9 | 498.3 10-03 | 544.4 a
15 31-01 | 536-9 526-9 11-71 | 544-2 537-3 10-40} 546-8 498-7 10-01 | 544-5 488-9
20 30-04] 534-8 536-9 11-46| 545.2 034-6 10-43 | 545-9 498-7 09-80 | 544-9 487-9
25 29-50! 529-6 541-1 11-44} 546-9 532-2 10-36 | 544-7 498-8 09-96} 545-0 487-2
| 30 29-06| 531-7 543-0 11-21 | 551-5 529-8 10-30} 546-1 498-5 10-09 | 544-6 *
35 99-14| 531-0 | 544.3 11-25) 552-9 | 528.9 10-34| 546-5 | 497-9 10-06| 544-5 | 487-6
40 28-40| 529-7 | 544.8 11-57| 549-4 | 529.2 10-45| 546-1 | 497-9 10-00] 544.4 | 486.9
45 26-35| 529-9 | 545-7 12-11) 546-7 529-5 10-20} 546-1 497-7 09-93 | 544.2 | 487-5
50 25-47 | 532-4 546-7 12-20| 547-6 527-0 10-33 | 545-9 497-5 09-79] 544-3 e
55 25-19! 537-0 546-6 11-89| 547-1 525-8 10-25 | 545-6 497-9 09-69 | 544-1 488-8
4h, ths Ip 16°.
0 25 24-73 | 539-1 546-1 | 25 11-39) 544.4 524-7 | 25 10-11] 546-0 497-6 | 25 09-49| 544-0 489-0
5 94.17] 542-6 544-5 11-37 | 544.3 523-8 10-23 | 546-1 497-0 09-39 | 544-0 G5
68610 23-19} 540-4 545-4 10-77 | 544.4 523-4 10-23 | 545.4 497-0 09-40) 543.4 488-8
ae 22.71] 545-8 | 543-0 10-14} 545-6 522-5 10-14} 543-9 | 497.1 09-15| 543-9 | 489.7
20 22.65 | 550-8 539-1 09-82 | 548-3 521-5 09-98 | 541-2 499.2 09-29) 543-7 489-7
25 21-71) 550-6 544-4 08-79 | 549-5 521-1 09-87 | 540-8 499-8 09-20 | 544-0 Fy
30 21-34} 551-1 543-8 07-99 | 552-8 521-4 09-98 | 542.4 499.2 09-29 | 544-8 490-8
35 20:89 | 546-6 546-1 07-98 | 553-3 521-5 10-23 | 542-9 498.4 09:05 | 545-5 491-6
40 20-08 | 530-6 551-4 08-56 | 551-9 521-7 10-14] 543-7 498-1 09-29 | 543-8 491-6
45 19-59 | 531-7 552-5 09-26 | 549-6 021-8 10-23 | 544-5 497-6 08-97 | 543-6 an
50 18-16} 533-4 551-1 09-53 | 546-5 322-9 10-31 | 545-8 496-9 08-58 | 543-8 491-5 |
55 17-74| 542-8 552-5 09-59 | 547-1 524-9 10-31 | 545-3 496-2 08-55 | 543-2 491-4
5h, gt, 13°, 17,
0 25 17-06| 545-7 548-4 | 25 09-66] 546-3 525-5 | 25 10-23 | 545-3 495-2 | 25 08-14} 543-1 492-0
5 16-87} 546-9 545-8 09-86 | 545-6 526-9 10-13 | 545-3 496-8 08-34) 543-2 491-4 f
10 16-86} 540-7 545-8 10-00 | 546-3 527-0 10-31 | 545-3 494-4 07-94 | 541-9 a
15 17-24] 532-5 546-7 10-16 | 547-0 525-3 10-18 | 544-8 rp 08-11 | 540-8 493-9
20 16-70} 531-7 545-8 10-36] 545-7 526-1 10-00 | 544-4 494.3 07-81 | 540-8 494-0
25 16-19} 534-5 543-9 10-48 | 546-5 525-2 | 10-04} 545-1 493-9 07-44} 540-2 494-1 |
30 16:08 | 544.3 539-3 10-30 | 546-3 525-2 | 10-11) 545-1 490-8 07-99 | 540-1 494-9 |
35 16-39 | 555-0 530-9 10-33 | 546-0 rs 10-03 | 544-7 491-9 07-62) 539-9 495-4
40 16-77 | 561-0 529-4 10-77 | 546-2 526-5 10-01 | 544-8-| 492.3 07-38 | 539-7 495-5 |
45 16-59) 560-6 528-7 11-07 | 546-2 526-0 10-13 | 545-1 492-2 06-36 | 537-9 496-3
50 16-19} 556-0 532-9 11-30] 545-1 525-9 10-13] 545-2 2 07-49 | 538-7 496-1
55 15-14} 550-4 537-9 11-28) 544-6 525:3 10-20| 545-3 489-3 06-77 | 537-9 495-5
BiFiLar. Observed 2™ after the Declination, <=0:000140. BALANCE. Observed 3™ after the Declination, k=0-000010.
‘ The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
Observations of Magnetometers.
When double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the previous
| position being appreciable, the micrometers were not altered.
MAG. AND MET. oss. 1845.
TERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845.
78
Gottingen
eau TIe
Oveatvation|| DECEINA-
Min. C v
0 25 05-89
3 06-41
10 04-91
15 05-42
20 05-11
25 05-45
30 05-76
35 05-72
40 05-87
45 05-92
30 05-58
55 05-35
0 25 04-89
3 04-24
10 04-08 |
15 04-41
20 04-44
25 05-30 |
30 05-08 |
35 04-78
40 04-10
45 05-05
50 05-18
55 04-81
0 25 05-32 |
5 05-55 |
10 05-70 |
15 04-68
20 05-53
25 05-69
30 05-62
35 06-81
40 06-21
45 06-63
50 06-46
55 07:08
0 25 06-37
5 06-70
10 07-20
15 | 05-62
20 | 07:27
25 07-45
30 07:87
35 06-77
40 06-59
45 | 07-25
BOF || \- 07-29
55—Ci|| Ss 08-21
Se. Div.
18h,
537-9
537-5
537-8
537°8
537-8
537-1
538-0
536-8
536-8
536-9
536-5
537-1
195,
536-2
534-7
535-4
536-4
536-4
535-7
534-3
533-9
534-3
539-2
534-3
534-2
205,
533-7
532-9
531-4
531-9
532-9
532-5
531-7
530-0
530-2
529-9
529-0
528-3
PO
528-0
529-5
529-0
529-7
527-1
526-0
525-3
526-0
525-5
525-5
526-8
526-4
BIFILAR
Corrected. | Corrected.
BALANCE
Mic. Div. J ° if
494-9 | 25 08-79
494-2 09-03
495-6 09-49
495:8 09-54
496-5 10-20
496-5 10-23
496-7 10-30
497-0 10-67
496-6 11-10
499-6 11-32
500-1 11-72
498-7 11-93
497-0 | 25 12-33
496-2 12-67
495-6 12-96
496-2 13-64
495-0 14-03
495-4 14-57
495-1 14-55
495:3 15-01
495.2 15-44
494.3 15-64
494.7 15-99
494-7 16-46 |
495-4 | 25 16-75
495-6 17-06
494.9 17-29
495-1 17-39
494.2 17-61
494-6 17-49
495-0 17-46
494.9 17-40
494-8 17-37
494-8 17-47
494-9 17-44
493-7 17-56
491-9 |] 25 17-61
491-5 17-56
491-1 18-03
489-0 18-00
493-1 18-01
494.2 18-10
494-6 18-25
493-2 18-47
491-5 18-79
» 18-77
489.2 18-81
489-1 18-90
DECLINA-
TION.
June 18, 19.
BIFILAR
Se. Div.
p78
526-0
525-5
524-2
523-3
522-7
522-9
523-1
523-1
5230
522-5
521-9
523-1
Zone
524-1
525-1
526-1
525-9
525-2
524-9
526-4
527-2
527°3
528-2
528-4
529-1
or,
529-7
530-5
531-0
531-6
532-8
534-5
535-6
5358
936-5
536-4
537-7
538-3
1
537°8
339-9
340-2
539-2
539-1
041-4
042-1
543-1
341-5
542-2
541-2
541-4
BALANCE
Corrected. | Corrected.
Mice. Div.
488-8
488-0
488-1
487-2
486-5
485-6
485-6
485-1
485-5
484-9
485-5
485°5
486-5
487-1
486-7
486-9
487-5
486-9
485-3
484-0
483-1
482-2
480-8
479-9
478-7
478-2
477-9
477-3
476-4
475-0
474-1
472-9
473-0
472-0
471-8
471-4
471-6
471-1
471-4
472:3
472-5
472-4
472-2
471-6
471-3
469-8
469-5
468-7
DEcLINA-
TION.
25
bo
.
14-55
14-17
13-90
13-63
13-36
13.20
13-05
12-60
12-33
11-99
11-74
11-51
BIFILAR
Corrected.
Sc. Div.
gh
543-0
543-2
541-1
538-4
541-1
545:8
546-5
045-8
545-9
545-9
546-1
545-6
Be
543-0
542-3
543-4
542-5
537-9
541-4
538-9
544-3
542.4
542-0
543-0
544-2
ae
544-5
545-0
546-6
546-9
546-6
547-2
546-9
547-0
547-4
546-4
546-2
546-5
pee
547-8
547-9
547-6
547-4
548-1
049-2
548-9
546-7
546-7
547-1
547-2
546-8
BALANCE
Corrected.
Mie. Div.
468-6
468-7
469-3
471-4
472-0
471-2
471-3
472-2
472-0
472-5
472-5
473-3
473-7
473-9
474-6
475-3
476-5
477-1
478-3
480-1
481-7
482-0
482.4
482-8
483-3
484-3
484-9
485-9
486-4
487-2
488-3
489-4
490-3
490-9
491-5
492-4
492-6
493-1
493-6
493-6
493-7
493-6
493-7
493-7
493-8
494-6
493-6
493-4
DEcLINA-
TION.
° ’
25 10-65
25 11-17
10-63
10-75
10-60
10-43
10-61
10-40
10-47
10-74
10-54
-
BiriLaR | BALANCE
Corrected. | Corrected,
Se. Diy.
|
|
E
Mie. Diy.
493-2
492.8
492.2
492.3
492.5
BriFILAR. Observed 2™ after the Declination, k=0:000140.
The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
Observations of Magnetometers.
When double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the previous
BALANCE. Observed 3™ after the Declination, k=0:000010.
position being appreciable, the micrometers were not altered.
—F
TERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845.
79
dttingen JULY 23, 94.
een tae
selination DECLINA- BrriLar | BALANCE DeEcLINA- BIFILAR | BALANCE DECLINA- BrFILAR | BALANCE | DeEcuiina- Biritar | BALANCE
servation. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. |
Min. 2 e Sc. Div. | Mic. Div. 2 @ Se. Div. | Mic. Div. ° e Se. Div. | Mic. Div. % ih Se. Div. | Mic. Div.
108, 14", 18", | 29h,
0 25 10-54] 549-6 | 499-3 | 25 09-59| 542-8 | 481-1 | 25 11-48) 536-6 | 468.4 | 25 06-39| 532-7 | 476-5
5 10-33 | 548-2 | 499-1 08-92} 543-0 | 481-1 } 11-41} 536-4 | 467-3 06-:71| 532-5 | 475-9
10 09-96) 549-0 498-5 08:70| 545-7 480-6 11-37 | 536-5 464-8 | 06-88} 531-9 474-4
15 10-63 | 549-5 498-5 09-69} 543-1 481-7 11-27| 537-2 464-3 | 07-18} 531-9 473-5
20 09-66 | 550-0 | 498-0 09-37 | 542-9 | 481-5 | 12:38| 537-6 | 464.2 07-31} 531-1 | 473-0
25 09-54) 549-7 | 498.4 09-15} 543-9 | 481-2 } 12-31] 539-1 | 463.7 07-31) 531-0 | 471-9
30 09-47} 549-6 | 497-8 09-19} 543-3 | 481-5 12-89! 539-2 | 462.7 07-47| 531-1 | 470-5
35 09-46} 548-9 | 497-7 09-47| 542-6 | 481-5 | 12:98} 539-3 | 461-7 07-51) 531-0 | 469-4
40 09-54| 549-5 | 497-8 09:39 | 542-4 | 481-5 | 12-51] 539-8 | 461-1 08-41} 532-8 | 468-5
45 09-60| 549-2 | 497-2 09-39} 543-0 | 481-5 | 11-71) 541-7 | 460-3 09-39| 531-4 | 469-2
50 09-64} 549-5 | 496.2 10-:74| 542-6 | 481-5 } 10-87 | 543-0 | 460-0 09-54} 530-8 | 468-7
55 09:87) 549-6 | 495-7 10-94; 543-9 | 480.1 11:00' 540.9 | 460-1 09-42! 529-0 | 467-7
115, 15}, 19. Qany
0 25 09-76| 550-8 | 493-7 | 25 10-58| 545-0 | 481-2 | 25 10-47) 539-8 | 461-7 | 25 08-61, 529-0 | 466-0
5 09-91} 550-9 | 492-3 10-47} 544.0 | 481-0 | 09-64) 538-4 | 462-5 | 08-72| 530-7 | 465-7 |
10 10:00} 549-9 492-1 09-84] 544.3 481-0 08:63} 538-1 463-5 H 09-19} 531-2 465-8
15 10-18] 548-9 491-4 10-03] 543-7 481-3 | 08-11) 535-9 465-0 09-54! 529-2 466-9
20 09-79| 547-6 490-8 09-73| 546-1 479-5 | 07-27) 537-7 466-4 | 09-44| 528-3 467-4
25 09-42} 547-8 | 490-1 09-80} 546:3 | 481-3 06:36| 539-6 | 466-3 | 09-74) 527-1 | 468.3 |
30 09-51); 549-0 489-0 09-96| 545-9 482-8 06-77 | 539-8 470-4 hi 09-13| 527-4 468-3
35 09-15) 549-5 | 488-1 10-01) 546-5 | 482-7 § 07-44! 538-2 | 470.7 | 09-24} 527-8 | 468-0
40 09-37 | 549-4 487-5 10-16] 546-5 482-8 | 06-44 | 538-7 471-4. 09-24| 527-3 468-4
45 09-53 | 549-6 486-5 09-59| 547-5 481-0 06-12] 539-8 471-0 09-32) 527-9 468-7 |
50 09-46) 548-7 | 485-3 09-89| 546-5-| 481-0 05-92} 541-7 | 472-0 09-69} 528-9 | 469-1
55 09-49] 549-0 485-0 10-54| 545-6 480-9 07-08 | §38-2 474.2 | 10-06 529.0 470-2
12, 164, 20°. 0°.
0 95 09-84| 549-0 485-0 | 25 11-91, 541-8 478-6 1 25 05-18] 540-1 473-4 | 25 10-43] 529-0 470-4 |
5 10-04) 548-5 484-5 12.27} 540-2 477-8 05:38! 540-4 474.2 | 10-30) 528-9 470-8
10 09:80} 547-9 483-6 12.04] 540-6 476-7 05-62) 540-3 475-0 10-68) 530-2 470-6
15 10-40) 548-1 | 483-2 12-75 | 543-1 474-6 05-62; 539-6 | 475.3 | 10:97} 528-8 | 471-1
20 10:53) 548-3 | 481-6 13-47) 543-4 | 472.0 | 05-72} 538-4 | 476-1 11-54) 528-4 | 471-6
25 10-50| 549-8 | 479.6 12-35| 545-1 | 468-6 | 05-38} 538-2 | 475-8 } 11-74| 527-8 | 471-8
30 09-93| 549-3 477-6 10-98) 546-9 468-5 | 05-15] 537-9 476-3 12-16) 526-9 471-7
35 09-53) 548-7 | 477.3 10-97| 546-1 | 464.8 | 05-05 | 537-3 | 475-8 12-36) 527-0 | 471-1
40 08-85| 548-1 | 476-5 09-59| 547-2.| 464-6 | 04:97; 538-4 | 476-1 12:76| 527-8 | 471-6
45 08-41} 548-2 | 476.2 09-17) 545-2 | 464.4 f 05:52} 535-3 | 476-5 } 13-02} 528-8 | 472-0
50 08-:06| 547-5 | 476-7 08-01; 545-2 | 464-1 | 04-59; 536-1 476-3 12:96 | 529-7 | 472.4
55 07-82| 547-9 476-6 08-14, 544-7 | 465-8 | 04-37 537-0 476-1 | 13-10| 531-5 472-6
13%, 174, 914, es
0 25 08-18| 547-1 | 477-0 | 25 09-69: 545-0 | 467-1 | 25 04-51| 537-0 | 476-0 | 25 13-32 530-8 | 473-9
5 08:18] 546-6 | 479.2 10-63 542-0 | 469-5 | 04-64) 536-5 | 477-4 13-50; 528-5 | 476-5
10 08-18} 546-3 | 478.2 09-82) 541-2 | 471-8 | 04:78 | 535-5 | 477.3 13-84| 528-5 | 477-4
15 08-65] 546-2 | 478-6 10-70} 541-0 | 473-1 | 04:73 | 534-4 | 477-7 | 14:03} 531-2 | 478-2
20 09:32] 544-9 | 478.7 11-77| 538-4 | 474.2 04-28} 536-3 | 477-1 14.17] 533-5 | 478-7
25 09-15| 544-7 | 479.6 12:02) 535-6 | 474.3 04-75] 536-0 | 477-5 f 14-20) 535-4 | 480-0
30 09-42} 545-2 | 479.7 11-57} 535-1 | 474.4 § 05-20| 536-2 | 478-6 14-73 | 535-8 | 480-5
35 09-62) 545-3 481-1 10-83} 535-0 474-0 | 05-43 | 533-8 478-6 | 14-71 | 535-6 482-3
40 09-60} 543-9 | 480-8 10-97) 535-7 | 474.0 | 05-50] 534:5 | 478-6 14:77 | 532-9 | 484-0
45 09-33) 544-4 480-2 11-25| 536-1 473.8 | 05-83 | 534-1 479-1 h 14-46} 530-3 486-2
50 09-71} 545-8 480-8 11-27!) 536-3 471-9 06-14; 533-0 478-8 | 14-41 | 528-5 487-8
55 09-76} 544-5 480-8 11-17 | 537-0 470-2 06-10} 533-1 477-9 | 14-30) 526-8 488-3
Birinar. Observed 2™ after the Declination, k = 0-000140. BaLaNCcE. Observed 3™ after the Declination, 4 = 0:000010.
| The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
| Observations of Magnetometers.
The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
Observations of Magnetometers.
July 244114, Extra Observations made.
Aug. 294 10h,
For observations before the commencement of the Term-Day Observations, see the Extra Observations of Magnetometers.
See also the Notes, after the Extra Observations, upon the Aurora Borealis, seen before and after 104.
80 TERM-DAY OBSERVATIONS:OF MAGNETOMETERS, 1845.
Géttingen JuLy 23, 24. Aveust 29, 30.
Mean Time
of
Peclination DEcLINA- Birizar | BALANCE § DEcLINA- BirinaR | BALANCE "a | BirizarR | BALANCE | DEcLINA- BIFILAR | BALANCE
5 2Or TION. Corrected. | Corrected. TION. Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected.
Min. 2 a Sc. Div. | Mic. Div. e Us Se. Div. | Mic. Div. £ g Se. Div. | Mic. Div. os , Se. Div. | Mie. Diy.
gh, 6h, 102, 142,
0 25 14:40} 526-9 488-7 | 25 13-91] 555-2 552-9 | 24 45-87; 508-5 224-5 | 24 57-75 | 529-5 272-6
5) 15-01 | 525-7 489-8 13-23 | 554-7 553-4 | 24 33-34) 526-4 235-6 57-41 | 531-7 276-1
10 15-38 | 523-9 491-2 13-56| 558-0 554-9 | 24 30-07| 566-3 235-4 57-68 | 531-4 278-9
15 15-54| 524-5 492-1 13-77 | 560-3 554-0 | 24 46-28} 560-6 242-9 57-01 | 525-0 289-0
20 15-74 | 529-2 490-7 13-90} 561-9 552-7 | 24 58-70) 551-3 264-2 54-93 | 522-8 298-0
25 16-21 | 530-7 490-6 14-33 | 561-4 554-8 | 25 04-34] 538-5 305-1 54-38 | 522-6 304-5
30 16-43 | 532-6 489-8 14-57 | 559-7 555-1 | 25 02-45) 531-0 326-0 54-55 | 523-2 313-6
35 17-02} 535-1 489-1 14-04) 562-7 555-5 | 24 59-24] 531-4 334-2 56-38 | 520-1 314-2
40 16-43 | 536-1 487-7 13-66 | 560-3 555-6 | 24 55-94} 541-3 344-4 56-82 | 517-5 321-2
45 16-55 | 539-5 487-5 13-46 | 562-7 554-1 | 24 56-07} 549-8 345-9 57-08 | 520-0 321-7
50 16-32 | 529-9 488-0 13-:10| 558-8 556-7 | 24 59-01) 546-7 347-4 | 24 59-51) 515-1 328-4
59 16:50 | 540-3 488-5 12-15 | 558-4 555-8 | 25 03-11! 535-0 350-5 | 25 02-12) 513-4 334-8
3h, f 7h, 114, 15,
0 25 16-53! 542-5 488-4 | 25 11-55| 559-1 556-8 | 25 00-99, 538-7 348-7 | 25 08-45; 511-0 | 328.2
52 16-53 | 543-7 488-5 12-01 | 556-1 557-2 00-51 | 535-4 | 346-5 05-90 / 515-0 322-5
10 16-52 | 542-2 490-2 11-91] 557-6 554-8 00-87 | 536-6 342-2 05-47 | 517-8 319-5
15 16-08 | 542-9 490-7 12-35] 560-8 553°3 01-54) 539-4 | 341-1 04-64! 515-6 321-0
20 16-87 | 544.7 492-2 13-67 | 558-4 553-2 02:73 | 537-2 341-0 04-71) 514-4 322-8
25 16-66 | 542-3 494-3 13-76} 554-5 553-7 04-07 | 537-2 336-8 04:59 515-1 332-5
30 16-25 | 543-2 495-0 11-68} 555-1 551-9 04-21 | 537-2 | 334-1 05-00! 518-0 336-7
35 15-85 | 545-9 496-2 10-83 | 553-5 550-5 04-49 | 538-8 330-0 05-80} 522-1 343-5
40 16-03 | 549-5 497.2 10-58 | 554-7 548-0 07-52) 535-4 322-9 07-45) 524-1 346-3
45 16-21} 551-2 498-8 11-41} 553-3 547-7 08-34! 544.1 306-4 08-77 | 524-5 347-2
50 16-26] 554-6 499-0 12-04} 550-9 547-8 09-64] 554-0 290-6 10-06 525-0 343-0
55 15-98 | 555-3 499-9 11-84] 549-4 547-3 10-43 | 553-4 272-9 10:03 524-7 3428
4h, gh, 12h, 164,
0 25 15-76| 557-4 | 501-3 | 25 11-00] 548-9 | 547-1 | 25 09-96 541-7 258-3 | 25 10-58) 520-5 342-5
5 15-86] 556-0 502-7 10-77 | 547-1 548-8 08-19, 540-0 251-6 10-04) 517-8 | 343-3
10 16-18] 560-8 505-4 07-64| 546-0 | 548-5 08-75 | 538-7 249-6 09-57 | 520-3 | 339-2
15 16-19} 559.2 |* 507-4 08-52 | 546-1 546-0 10-30} 534-4 247-2 09-66 | 521-7 | 334-4
20 15-24] 559-2 510-6 07-64.| 548-4 544-5 11-34] 534.4 242-7 09-22 | 525-8 330-5
25 15-67 | 561-6 512-4 07-47 | 548-1 542-4 12:80} 524-3 235-1 09-29 | 533-7 326-5
30 16:05 | 558.7 516-0 08-08 | 546-0 542.2 12:38 | 514-5 237-9 09-71 | 533-7 328-5
35 15-86| 552.2 521-0 08-68! 546-1 539-9 08-31] 511-3 239-3 09-71 | 532-7 | 333-7
40 14-40| 550.1 524-6 08-97 | 543-9 540-2 02-12} 529-1 242-9 10-14) 534-1 334-3
45 12-58 | 552.3 525-7 07-54| 543-8 537-9 00-20} 534-8 233-6 09-66 530-6 338-6
50 14-06 | 559.2 526-1 05-72) 544-0 535-2 00-60 | 538-8 227-3 06-68 | 531-2 342-2
55 14-53 | 563-3 526-9 05-65 | 543-8 533-9 01-61} 536-9 224-9 05:03 533-5 347-6
5h, gh, 13}, 174,
0 25 15-67)| 561-1 530-0 | 25 06-68! 543.5 532-3 | 25 02-08| 531-1 224-0 | 25 04-10] 534-1 353-5
5 15-69| 560-1 532-1 06:97 | 541-1 530-1 01-02! 535-4 220-9 02-89 | 533-5 359-8
10 15-71] 554.8 535-9 06-03 | 538-7 527-8 01-72) 531-5 222-0 02-10} 535-3 363-3
15 14:06 | 552-6 538-9 04-17 | 538-5 525-0 02-91 | 528-4 221-7 03-52} 535-2 368-3
20 13-64 | 555.3 540-9 02-69 539-0 524-4 04-39 | 518-4 219-9 04:08 | 533-5 370-6
25 12-95 | 558-7 541-7 01-85} 543-2 521-5 03-82 | 510-6 222-7 03-97 | 534-5 370-2
30 13-52] 557-3 544-3 03-95) 541-8 519-4 | 25 02-08} 509-8 225-9 04:07 | 535-4 371-4
35 13:96] 553-4 547-3 05-55 | 537-7 518-0 | 24 59-77) 516-8 234-1 04:76 | 534-0 374-9
40 13-79 | 552-5 548-6 06-79 | 532-1 514-1 | 24 57-79| 524-1 239-7 03-81 | 533-6 377-3 |
45 14-46 | 553-1 551-0 06-36| 533-4 506-4 | 25 00-77} 528.1 247-4 04-58 | 534-0 377-9
50 14-92) 552.8 552-3 06-23 | 536-5 506-3 | 24 58-92) 528-8 253-1 05-50 | 535-1 378-9 |
55 14:37 | 554.4 553°3 05-99| 540-4 500-9 | 24 58-62) 527-5 272-1 06:32} 536-9 377-6 |
BIFILAR. Observed 2™ after the Declination, k=0-000140. BALANCE. Observed 3™ after the Declination, s=0-000010.
TERM-DAay OBSERVATIONS OF MAGNETOMETERS, 1845. 81
Gottingen AUGUST 29, 30.
Mean Time
Declination DECLINA- Brrizak | BanancE ff Decnina- | Birizar | Bauance§ Decuina- | Birizar | BaLance | Decuina- | Biritar | BALANCE
Observation. TION, Corrected.| Corrected. TION. Corrected.| Corrected. TION, Corrected.} Corrected. TION. Corrected.| Corrected.
Min. 2 f Sc. Div. | Mic. Div. a f Se. Div. | Mic. Div. C i Se. Div. | Mic. Div. Se. Div. | Mic. Div. ]
182, Qoh, on: 6h, |
0 25 08-28 | 535-5 379-1 | 25 13-43} 521-4 452-0 | 25 16:93) 536-6 479-8 548-4 456-9 |
5 07:72} 533-5 379-8 14-30} 517-5 458-4 16-57 | 534-6 481-4 544-0 457-2
[10 07-74| 531-4 381-7 15-20 | 517-3 460-1 16-52 | 530-7 484.4 549-9 456-6
jC 07-40} 530-9 384-5 16-65 | 521-7 461-2 16:62 | 529-0 486-6 551-2 457-2
20 07-60 | 530-4 388-5 17-09 | 520-7 462.2 16-65 | 535-9 485°8 548-0 459-2
| 25 07-60} 531-4 394-2 16-32 | 520-6 462-8 17:19 | 536-2 486-8 545-1 461-0
30 08-72} 531-3 398-9 16-08 | 521-0 463-0 17-44.| 533-5 488-3 543-5 465-4
1 35 09-06 | 532-7 402-5 15-34 | 520-3 462-9 17-71 | 535-3 489-2 536-5 470-2
40 09-54| 534-7 406-3 14-17 | 522-9 462-6 17-39 | 535-9 490-4 534-1 475:5
45 10-60| 532-3 409-8 13-22 | 524-1 464-1 17-49 | 529.8 492-5 531-6 479-6
50 10-83 | 530-4 411-4 13-32 | 526-7 465-1 18-10 | 526-3 493-6 527-3 | 482-7
55 10-50| 530-5 412-3 12-58) 527-3 466-8 18-40 | 527-4 494-1 530-4 485-5
19}, 93h. 3h. 7,
0 25 11-71| 526-5 414-3 | 25 12-38] 528-9 466-9 | 25 17-33] 525-9 493-9 544-0 482-6 |
5 11-71 | 527-4 413-2 13-36 | 530-5 467-1 15-74 | 525-2 493-9 554-5 488-2
10 12-62] 526-4 414-7 13-83 | 529-5 467-6 15-51 | 526-7 494-3 559-4 487-1
15 13-02] 523-1 415-7 12-53 | 527-5 468-1 15-58 | 526-5 494-8 566-9 485.0
20 14-67 | 520-5 415-4 14-33 | 524-0 468-6 15-81 | 527-2 493-6 565-3 487-6
25 14-87 | 516-2 416-5 13-90 | 527-9 466-4 15-44 | 527-0 493.2 558-2 488-1 |
30 14-53 | 509-6 417-3 14-30 526-2 466-7 15:58 | 528-1 492.3 545-5 487-9
35 G 14-94} 508-2 419-1 14-94 527-5 465-7 15-01 | 527-7 491.7 549-7 486-0 |
| 40 16-62} 505-9 419.3 15-17| 524-4 466-0 15-15 | 532-8 490-8 552-2 485-8
45 18-03 | 503-0 419-1 15-14) 524.0 467-3 14-70 | 530-6 491-9 549-4 485-2
50 18-54 | 498-0 418-9 15-76| 521-6 468-0 12-42) 535-9 493-2 550-1 483-3 |
55 16-75 | 503-3 417-5 15-91 | 524-6 468.4 10-43 | 536-2 496-6 546-0 485-3 |
208, on. 4h, gh,
0 25 15-11 | 509-9 417-2 | 25 16-65| 523-4 469-1 | 25 09-89| 539-7 497-7 | 543-8 485-8
5) 14-06} 519-9 417-0 16-68 | 524-7 469:7 09-54) 543-7 498-7 543-0 485-4
(We) 15:78 | 526-5 417-6 16-32) 527-8 469-4 09-15| 542-0 499-9 546-1 485-4
: 15 16-89 | 523-1 420-5 16-75 | 526-1 471-5 09-53 | 545.2 499-9 549-1 483-7 |
5] 20 16-33 | 520-7 421-5 16-59 | 533-7 469.4 10-18} 542-9 499-1 544-5 483-7
25 14-87] 517-2 | 423-1 16-99 | 528-2 471-2 11-:34| 540-7 497-5 538-4 483-7
30 13-25 | 508-6 427-1 16-62] 526-4 473-0 11-95 | 537-6 493-6 540-0 481-9
35 11-03 | 507-4 430-1 16-65 | 524-5 474.4 12-28 | 538-0 488-0 543-2 480-2
40 11-51) 512-7 430-6 16-70 | 522-2 473-6 12-28 | 538-7 483-8 544-1 477-8
45 09-15 | 509-7 433-0 17-20] 523-7 474-4 12-29) 535-9 480-4 542-3 477-5 |
50 08-88} 510-6 436-3 17-47| 522-3 473-8 12-11} 535-5 476-3 541-9 477-1 |
55 12-95} 513-6 439-9 17-22} 523-1 472-8 11-99 | 533-1 473-9 539-7 477-3
; 214, 14, 5h, gh, f
| 0 25 15-94| 506-4 443-5 | 25 16-41! 527-1 471-6 | 25 11-84| 540-3 469-5 534-1 479-2 |
: 5 13-81 | 503-0 444.3 16-15} 533-2 468-1 11-34] 538-7 468.4 533-9 478-7
| 10 15-52} 503.4 445-7 17-27 | 532-0 469.2 11-28] 543-3 463-0 536-4 476-7
jy 3853 | 15:91 | 499-5 447-8 16:99 | 533-6 469-8 11-14 | 548-0 463-0 538-6 473-0
i 20 16-28) 501-2 447.7 16-65 | 533-2 471-0 10-50 | 545-3 464-3 | 541-7 467-5 |
25 17-02] 505-5 449.6 15-61 | 536-7 471-4 10-25 | 542-9 465-3 545:3 462.4 j
30 17-36 | 497-3 451-1 15-41 | 534-2 473-9 10-04| 540-4 466-1 540-8 461-0 |
‘| 35 15-91 | 501-7 448.3 15-58 | 535-1 474.4 10-50 | 538-4 465-2 532-0 461-6 |
| 40 15-85 | 503-9 446.4 16-45 | 536-8 475-1 10-04} 543-0 463-8 529-8 461-3 |
| 45 17-33 | 497-3 451-4 16-86| 538-2 475-3 10-41} 542-9 460-1 530-8 461-1
| 50 15-27| 501-9 452-6 16-84| 539-8 476-0 10-38 | 542-1 459-0 532-3 462-5 |
| 55 13-32 | 512-2 452-5 16-86 | 542-4 476-7 10-43 | 545-0 458-2 538-6 463-5
|
| Brriar. Observed 2™ after the Declination, s—0-000140. BALANCE. Observed 3™ after the Declination, k=0-:000010.
| The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
‘| Observations of Magnetometers.
Aug. 304 95 32™, Bifilar magnet vibrating 12 sc. div.
~#
MAG. AND MET. oBs. 1845. x
82 TERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845.
Gottingen SEPTEMBER 24, 25.
Mean aoane ’
oO
eokination DECLINA- BIFILAR | BALANCE DECLIN A- BIFILAR | BALANCE DECLINA- Briritar | BALANCE DECLINA- Birizak | Bavanc
BOLV ALON. TION. Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Correete
2. é Se. Div. | Mic. Div. 2 u Se. Div. | Mic. Div. Sc. Div. | Mic. Div. Se. Div. | Mic. Diy
104, 14°. 18, 22h,
559-2 437-8 | 24 59-09| 541-9 400-4 | 25 11-74| 520-2 56- , 528-7
004-1 438-5 58-49 | 539-3 388-8 07-44 | 515-3 : 7 524-1
505-0 438-4 57-31) 539-1 384-4 06-56 3: . }* 523-1
557-1 437-6 56-20 | 536-7 379-0 10-53 : . . 524-9
557-3 438-7 53-67 | 533-8 373-7 10-04 3: 3: . 525-1
504-1 : 53:00 | 528-0 370-5 10-50 : . . 525-7
556-3 . 51-99| 524-1 365-6 10-33 : , ; 523-9
549-4 . 52-64| 516-9 363-0 11-00 . . , 523-3
544-5 . 52-70| 516-6 360-6 11-03 : : . 524-4
| §42.4 . 53-52, 520-8 361-8 14-23 . . : 521-6
546-4 . 54-92| 525-1 | 361-9 17-07 “2 | } . 521-6
548-4 . 56:58 526-9 | 358-9 18-58 . )° -29 519-7
114, 15%, , 23h,
549-4 . 57-51) 528-9 | 351-6 | 25 17-84) . . : 521-5
549-5 . 57-51) 526-9 . 17-70 6 | . : 523-9
548.5 59-04| 525-5 . 18-47 7 | -60 | 523-7
| 546-8 . 00-40) 525-8 . 18-79 6 | : . 521-4
548-7 . 59-21) 530-2 2- 18-27 ‘0 | . 5. 520-5
551-5 3- 59-56 | 529-6 16-21 . 3: . 520-2
| 552-5 | 59-77 | 531-3 | 12-95 18 | 525-2
5| 549.7 . 58-27 | 534-0 | 13-37 : . : 521-9
548.2 . 55-84 | 533-4 | 14-10) . . . 528-0
547-5 | . 53-88 | 528-7 | 297- 13-02 | . . : 523-4
544-9 : 52-46| 528-0 | . 12-82 | . 2. 65 | 526-5
548-7 | . 53-27 | 527-4 | 287- 12-29 | 6 | . 52) 524-9
|
12h, 164,
551-8 | -4 | 24 53-38) 530-4 | 278. 12-82
550-9 : 52-80| 533-4 | 274. 13-86
| 549-3 2. 52-50| 535-3 | 271. 13-52
550-1 ° : 53-31 | 538-3 | 269-5 16-68
552-5 38. 54-82| 542-1 | 266. likens
556-1 : 55-44| 544-7 | 269. 19-31
554-3 ; 55-73 | 547-2 | : 18-77
552-0 : 57-49| 549-5 | 267. 19-07
547-5 31- 24 58-80} 551-6 | P 17-76
543-5 : 00-27} 554-3 | : 18-34
538-2 | 435. 01-36 | 550-0 | 4 20-25
| 539-1 | 436- 01-79| 548-3 52. 20-32
ests 17
539-9 435: 25 01:61| 543-7 | : 19-04 |
542-9 : 02-33| 536-8 | 25 19-28
01-73 | 542-4 130-§ 03-47 | 544-2 19-68
02-45 | 544-7 28- 05-99} 545-1 | 254- 18-67
03-61 | 544-9 25- 08-45 | 537-9 19-93
03-43 | 546-3 . 07-62| 535-9 | 248-5 21-70
01-95 | 547-4 : 06:73 | 536-8 | . 21-39
02-50 | 547-2 . 07-27 | 535-8 | 247- 19-53 |
01-51 | 545-3 6 07-27) 535-5 | 248. 18-50
00-92 | 546-1 9: 08-36) 533-4 | 17-81
25 00-75 | 544-6 . 10-13 | 530-3 18-01
| 24 59-97 | 543-5 . 12:04| 527-4 | 17-40 |
BIFILAR. Observed 2™ after the Declination, s=0-000140. BALANCE. Observed 3™ after the Declination, k=0-000010,
The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
Observations of Magnetometers.
TreRM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845. 83
dttingen SEPTEMBER 24, 25. OcToBER 22, 23.
ean Time
0)
jeation DEcCLINA- BIFILAR | BALANCE DECLINA- BiFrinak | BALANCE DEcLINA- BIFILAR | BALANCE DEcLINA- Birinar | BALANCE
4 TION. Corrected. | Corrected. TION. Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected.
Min. 2 2 Se. Diy. Mic. Div. Se. Div. | Mic. Div. 2 u Se. Diy. Mice. Div. 2 i Se. Div. Mie. Div.
Qh, 62, 104, 142,
0 25 23-34| 542-1 551-5 564-0 706-6 | 25 10-40| 542-2 | 440-0 | 25 11-00| 537-9 | 421-0
5 26:43 | 543-1 574-3 558-4 709-2 10-40 | 542-7 436-0 10-95 | 538-5 424-8
10 24:05 | 549-9 594-0 541-4 672-4 10-51 | 542-2 436-0 11-24) 539-0 429-3
15 27-04| 547-0 624-0 537-0 652-7 10-54 | 541-9 436-6 11-37} 539-9 427-1
20 25-53 | 533-3 638-7 536-2 637-9 10-38 | 541-8 434-1 11-08} 539-4 423-3
25 22-24) 536-4 638-3 535-0 616-2 10-36 | 542-2 430-2 10-74} 540-2 425-9
30 22-06} 536-1 634-1 539-4 607-0 10-18 | 542-2 431-8 10-36} 540-5 429-6
| 35 21-23 | 541-9 625-5 538-6 596-9 09-80| 542-1 433-7 10-06 | 540-6 427-7
| 40 21-44| 546-6 612-3 533-9 589-4 10-03) 542-2 433-5 09-59 | 540-3 424-6
| 45 21-26) 550-9 603-4 532-8 584.4 | 09-98 | 542-2 432-1 09-47 | 539-5 424.2
50 21-26) 546-4 596-8 532-2 576-3 09-87} 541-6 429-1 09-32) 539-1 422-6
55 18-94] 540-2 587-3 539-9 565-0 09-77 | 540-8 430-3 09-35} 538-6 425-9
3h, 74, 112, 15},
0 25 19-24! 528-0 579-2 540-1 554-2 | 25 09-59| 541-4 431-8 | 25 10-00 | 538-2 430-1
5 18-70} 534.9 566-2 539-6 545-3 09-86) 542.1 428-3 10-06 | 538-9 430-2
10 19-91! 540-1 555-6 539-0 536-0 10-00 | 543.2 426-4 10-01 | 538-5 428-8
15 21-48) 545-5 547-6 537-8 528-6 10-47 | 542.3 426-2 09-87 | 537-8 426-5 |
20 21-53 | 538.3 544-2 536-0 521-5 10-30 | 541-5 425-5 10-38 | 537-0 427-0
25 21-12) 535.0 539-7 534-0 516-0 09-79 | 541-2 425-2 10:01 | 538-1 422.2 |
30 22-10) 545-5 535-1 532-8 511-1 } 09-53 | 541-8 425.4 10-36 | 537-4 423-1
| 35 21-57 | 545.9 532-1 534-5 505-8 09-47 | 541-1 426-0 10-40) 537-1 429-3 |
| 40 22-03 | 544.4 531-7 533-4 501-4 09-51} 540-8 426-7 10-50 | 537-5 431-6
45 22-67 | 536-2 530-1 532-6 498-6 08-99} 540-0 427-2 10-67 | 538-5 430-7 |
| 50 22-27 | 531-8 527-3 536-6 492-9 08-73 | 539-6 429.4 11-00 | 538-5 432-8 |
55 21-68) 525-5 524-8 537-8 487-7 08-97 | 539-0 434-3 10-83 | 539-4 431-8
4h. gh, 12%, 162.
0 25 21-59| 525-8 | 519-3 538-7 | 485-6 | 25 09-56| 538-9 | 436-2 | 25 10-94| 539-8 | 431-0
ey 21-37 | 529-4 514-0 537-7 483-9 10-47 | 539-5 436-3 11:14] 539-5 | 429.9 |
| 10 20-18 | 5293 507-9 535-4 483-8 11-37) 541-9 433-5 11-44) 538-8 430-5
f 15 19-19} 530-6 501-9 537-9 481-4 11-42} 543-7 | 431-} 11-08 | 539-7 426-0
20 17-84 530-8 | 495-7 536-8 480-0 11-57 | 542.3 427.2 10-72| 540-1 424-5
25 17-00) 534.4 489-5 535-4 480-1 11-21) 542-0 423-8 10-83 | 540-6 425-4
30 16-45 | 535-0 487-3 534-3 480-4 10-70 | 541-3 419-1 10-75 | 541-5 425-8
35 16-36| 541-6 483-2 537°6 478-0 10-51 | 540-3 418-4 10-65 | 542-0 419-4
40 16-97 | 549-6 479.2 538-8 476-9 10-53 | 539-0 | 421-1 10-53 | 542-7 418-4
45 17-29 559-1 475-4 540-8 475-7 | 09-22| 539-8 | 419-0 10-40| 542-4 | 413-7
50 18-38 | 569.4 475-7 538-8 475-0 10-67 | 540-9 422.0 10:06 | 542-8 | 413-0
5d 18-18} 569-5 480-2 535-7 475-2 11:07! 541-0 | 418-2 10:33 | 542-3 415-4
5h, gh. 132. 178.
0 25 17-63} 568-9 486-4 533-7 476-5 | 25 10-90| 540-9 415-5 | 25 10-31| 542-3 418-4
i) 18-70 | 575-6 497-0 535-2 476-3 10-74| 540-4 417-0 10-09 | 542.3 421-5
10 20-02) 572-1 511-6 538-5 474.0 11-00 | 539.7 416-8 09-62 | 542-6 418-7
15 22-13] 557-0 527-9 538-4 473-8 10-94 | 539.5 416-4 09-53 | 543-2 418-0
20 21-21) 549-5 548-1 536-0 473-1 10-98 | 539-4 416-9 09-60 | 542-6 416-9
25 17-94] 551-0 568-7 536-5 472-2 10-98 | 538-9 417-2 09-47 | 542-3 418-1 |
30 14-13] 546-8 579-8 536-3 470-4 10-54! 539-3 422-0 09-57 | 542-3 415-3
35 10-80} 548-5 581-9 537-6 468-3 10-56} 539-1 425-3 09-62 | 542-3 417-8
40 09-64} 560-2 581-0 539-0 467-0 11-17 | 538-5 422-0 09-57 | 542-2 417-6
45 10:03 | 558-8 585-7 542-3 462-7 11-03 | 537-2 420-6 09-40} 542-1 416-1 |
50 11-21} 554-4 603-4 | 25 02-62) 543-6 459-6 11-32] 536.7 420-9 09-27 | 542-4 415-0 |
55 10-09 | 548-7 643-9 | 24 59-06| 540-3 457-2 10-90 | 537-0 420-4 09-15 | 543-3 418-6 |
BIFILAR. Observed 2™ after the Declination, s—0:000140. Bauance. Observed 3™ after the Declination, s=0-000010.
|
|
|
| Observations of Magnetometers.
\
Y
The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
84 TERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845.
Gottingen OctosBeEr 22, 23.
se ime
Qbrerratien.|( DRCEIA: | CBA | ia ee ee ee ee ee ee ee
Min. ° U Se. Div. Mic. Div. C) i Se. Div. Mic. Div. 2 y, Se. Div. Mic. Div. 9 ‘ Se. Div. Mie. Diy.
18h, Q2h, Qh. 64. ;
0 25 09.47) 543-3 421-0 | 25 10-09! 529-6 434-0 | 25 14-41] 535-7 433-3 | 25 10-94| 542.7 431-6
5 09-89 | 542-2 423-4 09-86 | 529-9 433-1 14:44 | 536-6 434-4 10-80} 542.4 431-8
10 09:46) 542.7 426-3 09-94| 529-6 432-3 14-24 | 537-0 434.1 10-90 | 542-8 433-1
15) 09-60 | 542-5 427-5 10-23 |} 530-3 431-7 14-40 | 536-8 435-0 10-83 | 542-9 432.5
20 09-57 | 541-4 426-6 10-47 | 530-9 430-7 14-03 | 535-9 435-2 10-80) 542.7 432-5
25 09-62| 541-5 | 429.4 11-10} 530-0 | 431-6 13-91 | 537-9 | +--+. 10-60| 542-3 | 432-6
30 09-40} 542-3 432-5 11-12) 529-6 431-0 13-96 | 538.4 435-2 10-67 | 542-5 431-6
35 09-62) 542-1 429.8 11-07} 529-9 430.3 13-96 | 537-0 436-3 10-60 | 542-7 432-4
AQ 09-77 | 541-5 426-7 11-57} 530-8 430-2 13-59 | 538-1 436-0 10-67 | 543-2 433-8
45 09-54 541-5 428-9 12-15 | 528-3 430-8 13-69 | 539-0 436-4 10-63 | 543-4 432-
50 09-86 | 541-6 432-5 11-41) 526-6 430-7 13:39 | 538-0 436-9 10-63 | 543-4 433-2
55 09-80 | 540-7 433-4 11-21 | 528-6 430-3 13-16 | 538-4 436-9 10-51 | 543-4 433-3
19h, 23h, 3h, 7h, :
0 25 10-06] 541-3 430-0 | 25 12-46] 528-1 | 431-0 |] 25 12-98| 538-7 437-1 | 25 10-48] 543.2 433-4
55) 09-79| 540-7 428-2 11-91 | 527-1 431-6 12-83 | 538-8 437-5 10-56 | 543-2 432-4
10 09-77| 541-2 429-5 11-74 525-7 | 431-7 12-75} 539-6 447.2 10-56 | 543-5 432-4
15 09-76| 541-5 430-8 12-01 | 526-4 431-9 12-69; 540-0 437-6 10-51 | 543-6 432-9
20 09-79| 540-8 427-8 12-18 | 526-5 432-3 12-46) 539-3 437-6 10-45 | 543-6 432-2
25 09-76| 540-3 426-7 12-09 | 527-6 432.1 12-22) 539.3 437-5 10-48 | 543-4 434-4
30 09-74} 540-0 428-2 12-36 | 528-4 432.2 12-11 | 539-1 437-7 10-38 | 542-7 433-6
35 09-74) 539-4 428-2 13-05 | 528-4 432-0 11-98 | 540-4 438-5 10-36 | 542-8 434-2
40 09-82) 539-3 430-8 13-05 | 528-5 432-1 11-77 | 539-2 438-2 10-40 | 543-2 432-2
45 09-87 | 539-1 432-9 13-14 | 528-8 431-4 11-66 | 539-7 438-1 10-33 | 543-1 432-6
50 09-79 538-6 435-1 13-16 | 530-0 431-1 11-62| 539-7 438-6 10-41 | 543-1 432-1
55 09-60) 538-0 434.2 13-56! 529-3 431-8 11-41 | 539-2 438-1 10-40 | 543-0 432-1
202. oh, 4h, gh,
0 25 09-54| 537-6 435-8 | 25 13-94) 529-9 431-3 | 25 11-27| 539.9 438-0 | 25 10-33] 542.9 431-3
5 09-15 | 537-0 436-9 14-10 | 529-8 431-2 11-27) 540-1 438-0 10-40 | 542-8 430-3
10 09-00 | 538-0 435-6 14-01 | 529-9 430-8 11-22) 539-5 437-4 10-50 | 542-7 431-3
15 09-08 | 538-3 433-1 14-26} 530-5 430-8 10-83 | 538-9 438-3 10-43 | 542-6 431-
20 09-45 | 536-3 434.4 14-33 | 530-7 430-3 10:90} 538-7 | 438-1 10-51 | 542-5 431-1
25 09-06 | 533-5 436-7 14-23 | 532-0 429-9 10-50} 538-5 437-8 10-41 | 542-5 431-2
30 08-99 | 534-8 438-2 14-68 | 533-6 430-0 10-54! 539-5 438-0 10-36 | 542.4 431-6.
35 09-35] 535-5 437-5 14-67 | 533-1 430-1 10-87 | 539-9 437-3 10-43 | 542-4 430-9
40 09-49 | 536-2 435-8 15-20 | 532-6 431-3 10-53 | 540-2 437-4 10-43 | 542.4 430-9
45 09-60 | 535-4 433-7 5:05 | 529-0 432.3 10-48 | 541-0 437-6 10-47 | 542-4 430-6
50 09-30 | 534-4 430-6 14-91 | 530-0 432-6 10-41} 540-7 437-2 10-50 | 542.5 430-
55 09:08| 534-2 430-1 14-84| 531-4 432-2 10-47 | 540-2 437-2 10-56 | 542.5 430-3
214, 14, 5h. gh,
0 95 08-99 | 534-2 431-3 | 25 14-99] 532-7 | 433-6 | 25 10-40) 541-0 436-7 | 25 10-50| 542-5 429.9
5 09-29 | 532-4 432-0 14-85 | 533-7 433-2 10-41} 541-6 436-4 10:50! 542-4 429.6
10 08-72 | 532-2 433-1 15-17| 533-7 433-4 10-43 | 539-2 436-2 10-50} 542-2 429-5
15 08-68 | 532-2 435-0 15-22 | 532.2 433-7 10-43 | 542-1 436-0 10-50} 542-1 429-5
20 08:25 | 533-2 435-4 15-05 | 533-1 433-7 10-43 | 542-7 436-0 10:50} 542.2 429-8
25 08-66 | 532-9 435-1 14:99 | 535-1 433-1 10-43 | 541-9 436-0 10:50| 542-2 429.9
30 08-38 | 532-1 434-9 15-27 | 533-9 433-0 10-43 | 540-9 436-0 10-50 | 542-3 429.6
35 08-88 | 532-1 435-1 14-75 | 534-0 433-5 10-36 542-9 435-8 10:50| 542-4 429.3
40 09:05 | 532-2 435-7 14-94 | 532-7 433-7 10-43} 540-8 435-5 10-51 | 542-6 430-0
45 09-35 | 531-8 434-6 14:57. 534-1 433-9 19-56) 541-5 435-6 10-50] 542-5 429.6
50 09-53 | 531-3 434-3 14-40} 534-8 433-9 10-60 | 542-1 434.4 10-50] 542-4 429-6
55 09-60 | 531-4 434-2 14-35 | 535-5 433-4 10-67 | 542-3 433-4 10-50] 542-5 429.7
BIFILAR. Observed 2™ after the Declination, k=0-000140. BALANCE. Observed 3™ after the Declination, =0-000010.
The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding “hours in the Hourly
Observations of Magnetometers.
TerM-DAay OBSERVATIONS OF MAGNETOMETERS, 1845.
Novemser 28, 29.
rottingen
ean Time
aieatton DEcLINA- Brrizar | BALANCE DECLINA- BiritaR | BALANCE DECLIN A- Brrizar | BALANCE DECLINA- BIFILAR | BALANCE |
»servation. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. }
Min. 9 ¢ Se. Diy. Mie. Div. C t Se. Diy. Mic. Div. Cl bs Se. Div. |! Mic. Div. 2 & Sc. Div. | Mic. Diy.
|
| 102. 144, 182, Bon.
0 25 06-39| 541-1 405-9 | 25 07-74| 539-1 401-4 § 25 07-17| 543-3 381-0 | 25 05-38 534-8 392-8
5 06-43 | 541-7 405-6 08-61 | 537-7 400-9 07-29 | 540-8 381-3 05-11| 536-8 592-0
10 06-61) 542-1 405-0 08-36 | 539-2 400-2 07-15 | 543-1 382-0 05-29 | 537-0 390-8 |
15 06:59} 542-0 405-3 08-43 | 541-5 398-2 07-87 | 540-6 381-8 05:77 | 537-5 390-8 §
20 06:73 | 542-7 407-0 07-45 | 541-7 396-8 07:74 | 540-9 382.4 05:05| 535-2 389-2 |
25 06:70) 542-0 | 406-2 07-13 | 540-8 393-3 07-99 | 543-4 382-0 05:05 | 540-5 387-9 |
30 06-37 | 541-9 406-2 06-71) 540-0 392-2 07-87 | 545-4 381-3 06-90 | 537-5 589-1 |
1 35 06-39 | 541-9 406-5 08-70 | 538-3 391-7 08-38 | 542-8 381-5 05-79 | 538-4 387:7 |
40 06-43 | 542-1 407-2 09-82 | 537-5 390-6 07:94) 541-2 380-8 06-26 | 537-0 387-5 |
45 06-43 | 542-3 407-2 10-77 | 540-5 386-6 07-82} 542-1 382-6 05-82 | 537-0 387-1
50 06-48 | 542-7 406-9 11-77 | 540-4 384-9 07-81 | 542-4 381-6 07-32] 539-2 388-1 |
55 06-83 | 541-7 407-1 12-:29| 539-1 382.4 07-85 | 543-2 381-4 06-09 | 539-2 387-4 |
114, 154, 19}, 23h,
0 25 07-15 | 541-3 407-0 | 25 11-37| 538-4 375-2 | 25 08-68| 543-6 381-9 | 25 07-89 | 539-0 388-1
5 07-10} 541-1 407-2 11-37 | 541-5 370-5 07-85 | 545-6 381-1 07-94 | 534-1 389-4
#; 10 07-00} 541-5 407-3 08-66 | 540-9 368-6 07-74 | 542-7 381-9 07:05 | 538-8 389-4 f
1) 15 06-90} 542-1 406-5 07-13 | 540-4 367-2 07-24) 544-7 381-7 09-15] 537-6 389-5
1; 20 07-08 | 542-4 | 406-0 06-36} 541-0 369.2 07:84 | 543-9 382-0 08-48 | 536-8 389-9
25 06-86 | 543-2 405-7 06-64 | 539-4 370-2 08-11) 545-7 381-6 08-52 | 538-1 390-7
30 07-13 | 543-3 405-5 06-66 | 538-7 372-4 08:19 | 542-9 381-9 07-94 | 537-1 390-9
35 06-79 | 542-4 | 406-4 06-88 | 539-1 373-2 07-35 | 545-5 382-4 07-98 | 538-0 392-2
40 06-73 | 542-4 406-0 07-18 | 540-3 375-3 07-76 | 542-2 382-8 08-72 | 536-9 |° 392-8
| 45 06-76 | 542-7 405-2 07-57 | 540-3 375-9 07-85 | 543-7 382-9 07-67 | 537-0 393-5
50 06-86} 543-5 406-1 08-11} 540-7 376-1 07-20) 543-4 382-9 09-08 | 537-5 393-6
} 55 07-05 | 543-3 406-0 08-05 | 541-1 377-0 06:46} 542-4 384-6 09-82 | 536.2 395-3
125, 164, 202% on.
| 0 25 06-83 | 542-5 405-9 | 25 07-64) 542-0 376-9 | 25 07-38| 540-8 386-0 | 25 09-56| 537-4 394-5
5 07-17 | 542-3 406-4 07-49 | 542-6 378-1 07-44] 544-1 384-5 09-77 | 536-8 395-2 |
10 07-25 | 541-6 406-9 07-47 | 542-2 378-1 07-74| 545-5 384-4 09-22 | 537-0 394-8
15 07-07 | 540-6 406-2 06-90 | 543-4 378:°3 06:98 | 543-0 384-0 09-57 | 537-7 394-5 |
| 20 06-93 | 540-3 406-6 07-31) 545-5 378-8 07:18 | 544-0 384-0 09-42 | 538-4 395-2
| 25 07-37 | 540-9 406-4 07-34| 544-2 378-8 06-50} 543-1 384-7 09-54 | 536-7 395-9
| 30 07-47 | 541-7 406-8 06-95 | 544-1 378-2 07-57 | 541-9 386-7 09-32 | 535-9 396-2
| 35 07-15 | 541-3 405-6 06-26 | 543-9 378-1 07-89 | 542-7 386-5 09-57 | 534-0 396-3 |
| 40 06-90 | 541-6 405.3 05:58 | 542-6 378-1 07:35 | 544-6 385-4 09-66 | 536-2 396-7
45 07-07 | 541-8 405:3 04.84 | 543-0 378-4 07:45 | 543-8 385-4 09-56| 535-4 396-9 |
| 50 07-08 | 543-1 405-5 04-81 | 543-3 378-9 07-38 | 544-9 385-9 09-19} 534-8 398-0 |
55 07-05 | 541-8 405-7 05:02 | 543-4 378-9 07:58 | 543-1 385-6 09-12} 535-3 400-0
13 175, 2s 1h,
0 25 06-97 | 541-1 404-8 | 25 05-52| 543-0 380-5 | 25 07:92} 541-4 387-1 | 25 10-31} 535-2 401-1 |
5 07-37 | 541-3 404-0 05-94] 542-0 382-5 07-85 | 539-3 388:8 10-33 | 534-2 401-9 |
| 10 07-58 | 540-7 404-0 05-69 | 543-3 381-7 06-63 | 539-9 389-3 10-47 | 535-7 402-6 |
| 15 07-04} 540-1 404-8 05-63 | 542-3 382-3 07:31} 541-0 389-8 11-41} 534-2 402-9
| 20 07-07 | 540-9 404-3 06-53 | 542-9 382-5 07-07 | 538-2 390-2 11-39} 538.1 404-0
. 25 07-07 | 540-3 402-1 06-17 | 542-4 381-7 06:12} 539-1 391-9 11-61 | 538-9 403 4 |
| 30 07-07 | 539-6 403-4 05-82| 544-0 381-1 06:93 | 535-4 393-1 12-45 | 538-5 403-6 }
1 36 07-32 | 538-9 403-0 06-06} 541-5 381-5 06-12) 536-5 393-7 12-22] 535-7 404-7 |
40 07-54| 539-8 401-0 06-12} 542-8 381-6 06-16} 534-1 394-2 11-91] 534.1 405-7
45 07-71 | 540-0 402-3 06:16) 544-8 380-3 05-63 | 533-5 394.4 11-98 | 533-9 405.4
50 07-89 | 540-3 401-9 06-26 | 544-1 380-0 05-05 | 532-4 394-2 12-45 | 534-2 406-0
155 08-08 | 539-8 401-2 06-23 | 544.9 380-7 04-98 | 535-1 393-5 11-77 | 532-3 406-2
.
| Brriuar. Observed 2™ after the Declination, s=0-000140. BALANCE. Observed 3™ after the Declination, s—0-000010.
:
;
| The temperature of
bservations of Magnetometers.
MAG. AND MET. oss. 1845.
the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
86 TerM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845.
Gottingen NoveEmBer 28, 29. DEcEMBER 24, 25,
Mean fume
| Declination DECLINA- BirinaR | BALANCE DECLINA- Brrivar | BALANCE DECLINA- BiritaR | BALANCE DEcLINA- BIFILAR — C
Observation, TION, Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected.| Corrected
Min. | ° < Se. Div. * Mic. Div. 2 fe Se. Diy. | Mie. Div. ¥ ¥ Se. Div. | Mic. Diy. Se. Div. | Mic. Diy.
gu 6b. 104, 145,
0 | 25 11-55 | 529-7 407-9 | 25 02-93 | 538-4 422-7 | 25 06-66| 545-2 429-0 | 25 07-25) 546-9 414.4
5 11-32) 528-7 | 408.7 04-55| 537-8 | 421-9 05-92| 545-0 | 428-3 07-07| 547-1 | 414.0
10 11-01| 527-0 | 410-1 05-18 | 536-3 | 421-3 05-47| 544-5 | 428-5 07-04] 546-8 | 413.0
i || 10-77| 527-7 | 411-1 06-34| 536-8 | 421-0 05-49| 544-9 | 427-5 07-10} 546-5 | 413-7
20 | 10-21) 528-1 412.4 07-82| 532-9 | 420-9 05:42 | 543-2 | 428-4 07-00} 546-4 | 413.3
25 09-56 | 528-5 413-7 06-39 | 538-2 417°8 05-29 | 543-7 428-1 06-93 | 546-6 411-8
30 09-05 | 529-7 415-4 07-13] 540-2 416-6 05-43 | 545-1 428-2 07-08 | 546-5 412.4
35 10-00} 533-1 416.4 07-15] 542-9 414-3 05-76 | 546-0 425-6 07-10 | 546-2 | 410.8
40 09-79 | 535-8 415-2 07-31 | 544-5 412-6 06-06 | 545-4 426-8 07-17 | 545-7 411-5
45 11-34} 537-1 414-9 08-21 | 545-5 / 411-7 | 06-07 | 544-2 426-9 07-17 | 545-5 411-3
50 11-81) 537-0 413-8 09-02} 544-3 410-4 06-46 | 545-3 426-7 07-35 | 545-5
55 11-41 | 536-0 412-6 09-05 | 543-1 | 408-9 06-59 | 546-3 425-6 07-40 | 545-7 411-1
gh. 7h 112, 154,
0 25 11-00| 535-9 | 411-3 | 25 08-19| 540-9 | 409-8 | 25 06-63) 547-5 | 424-2 | 25 07-45 | 545-5 410-0
5) 09-73 | 537-2 410-2 08-38) 542-5 | 409-8 06-71 | 547-2 423-4 07-44) 545-0 | 409-7
i 10 10-16) 539-4 409-5 08-95 541-5 | 408-8 06-53 | 547-1 422-7 07-57 | 544-9 33
15 10-33 | 540-1 | 408-8 08-82| 542-6 | 409-1 06-86 | 546-1 422-4 07-31) 545-4 | 409-9
i 20 10-06| 540-3 | 408-6 08-95 | 541-5 409-3 06-79 | 545-8 422-7 08-01 | 545-4 407-7
25 09-89| 540-0 | 408-0 08-58 542-5 | 408-3 06-84 | 546-8 422-0 08-25 | 545-3 408-4
30 09-89 | 541-1 408-0 08-43) 543-0 | 408.8 07-24 | 547-6 421-8 07-78 | 545-8 408-4
35 10-09 | 542-3 | 407-8 08-50) 543-4 | 407-4 | 07-27 | 547-3 420-3 07-71 | 545-9
40 10-13 | 542-2 408-1 09-19! 544-4 | 407-4 07-54 | 546-4 420-7 ' 07-74) 545-8 408-2
45 10-11 | 542-0 408-1 08-41) 544-9 405-7 07-54) 547-8 | 420-2 07-91 | 545-9 407-0
50 10-06} 545.0 | 408-6 08-08 | 544-7 405-0 07-72 | 547-7 | 419-4 07-98 | 546-2 | 406-1
55 08-86| 543-0 | 407-2 08-21, 544-6 | 405-0 07-65 | 547-5 418-8 07-98 | 546-3 406.
4h. gh, 12h, 162,
0 25 09-89| 541-7 409-2 | 25 08:03| 544-3 | 404-5 | 25 07-84| 547-6 418-9 | 25 07-98| 546-2 | 407-5
5 10-16 | 542-7 409-7 07:92) 544-5 405-4 07-82 | 548-1 418-1 08-03 | 546-5 406-3
10 10-06 | 544-8 408-8 07:74 | 544-1 405-3 07-82 | 547-5 418-2 08-08 | 546-6 407-0
15 09-62| 545-4 409-4 07-60 | 543-9 405-4 07-78 | 546-9 418-0 08-09 | 546-4
20 09-96 | 544-9 409-4 07:55 | 543-4 404-6 07-84| 546-6 418-7 07-89 | 546-5 406-9
25 10-16 | 544-3 409-8 07:78 | 543-1 403-5 07-72 | 546-6 418-5 07-71 | 546-5 406
30 10-16| 543-9 410-7 07-67 ) 543-3 404-6 07-84 | 547-0 418-2 07-65 | 546-5 405-4
H 39 10-51 | 541-2 411-8 07-60, 543-1 403-9 07-79 | 547-4 417-7 07-74 | 547-0 405-6
| 40 11-24) 537-2 413-9 07-47 | 543-3 403-1 07-82 | 547-2 417-9 07-76 | 546-8 406-2
) 45 11-68 | 528-6 416-9 07-25 | 543-9 403-1 07-74 | 546-7 418-2 07-78 | 546-9 405-2
50 09.44) 517-7 421-4 07-13 | 543-3 402-9 07-78 | 546-8 417-3 07-78 | 546-8 405-3
55 05-25 | 518-0 | 423-7 07-13 543-9 402-7 07-72 | 547-0 | 418-2 07-72 | 547-0 | 405-2
ae. gh. Le". UY aos
0 25 00-40| 522-2 424-7 | 25 06.97 | 543-9 402-0 | 25 07-62) 547-3 | 415-5 | 25 07-74! 547-1 405-4
D 25 01-54} 523-1 427-0 06-98 | 544-0 400-9 07:69 | 547-5 416-1 07-81! 547-1 405:4
10 24 57-28) 524-5 430-1 06-93 | 544-0 398-5 07-81 | 547-3 415-9 07-79 | 547-0 | 406.
15 56-63 | 525-7 431-2 06-74 | 544-5 400-1 07-69 | 546-8 415-8 07-74 | 547-1 405-8
20 56-34 | 529-7 430-2 06-74 | 545-0 397-4 07-57 | 546-7 415-3 07-67 | 547-1 406-5
25 56-94| 532-4 | 428-6 06-76 | 543-4 397-2 07-62 | 547-2 - 07-67 | 546-9 | 4060
} 30 58-22| 534-1 427-9 06-39 | 543-9 396-6 07-57 | 547-2 | 415-8 07-65 | 546-7 405.
} | 39 57-07 | 538-7 | 425-7 06-27 | 543-6 396-6 07-67 | 547-4 415-0 07-58 | 546-3 405-4
40 58-09 | 540-3 425-7 06-56 | 542-9 396-6 07-51 | 547-2 414.9 07-54 | 546-9 4048
45 24 59-09) 539-6 424-6 06-51 | 541-7 396-9 | 07-51 | 547-3 414-6 07-51 | 547-7 404.
} 50 25 00-11) 539-7 423-8 05-12} 541-3 396-5 | 07-60 | 547-4 414-3 07-51 | 548-0 403.
} 55 25 01-51 | 539-8 423-6 05-65 | 542-0 396-2 07-60 547-0 =: 07-78 | 547-7 | 403:
| aera 1 4
BiriLar. Observed 2™ after the Declination, k=0-000140. BALANCE. Observed 3™ after the Declination, s=0-000010.
The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourlg
| Observations of Magnetometers.
When double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the previous
position being appreciable, the micrometers were not altered.
TeRM-DAy OBSERVATIONS OF MAGNETOMETERS, 1845.
ttingen
an Time
'- of
Plination || Drcrina- | Brrivar
ervation. TION. Corrected.
Min. ° , Se. Diy.
| 185,
0) 25 07-40| 548-8
5 07-25 548-6
10 07-20 | 548-4
15 07-05 | 548-5
20 07-05 | 548-7
25 07-10 | 548-6
30 | 07-10] 548-6
35 07-18 | 549-0
| 40 07-34} 549.0
145 07-44 | 548-5
50 07-47 | 548-1
55 07-34) 548.3
195,
0 25 07-34| 548-0
5 07-20} 548-0
10 07-17| 548-5
15 07-20| 548-0
20 07-07| 548-0
| 25 07-07 | 547-9
30 | 07-01] 548.6
35 07-13) 548-6
| 40 07-07 | 547-7
| 45 07-08 | 548-0
| 50 07-15 | 547-6
| 55 07-17 | 547-6
20%,
1 O 25 07-13 | 547-7
1} 5 07-27 | 547-7
| 10 07-18| 547-1
15 07-20) 546-8
20 07-29} 546-5
25 07-07 | 546-5
30 07-05 | 546-8
35 07-05 | 546-6
| 40 07-13} 546-3
| 45 07-31] 546-5
50 07-17 | 546-7
55 07-10| 546-1
91.
0 25 07-04| 546-4
| 5 07-10 | 546-9
1 10 07-20 | 546.2
15 07-10 | 546-6
|, 20 07-40 | 546-5
25 07-10 | 546-7
} 30 | 07-07 | 546-0
35 07-24 | 545-9
I 40 07-24 | 545-9
> | 07-32 | 545-7
50 07-27 | 545-5
| 55 06-83 | 545.2
DeEcEMBER 24, 25.
87
BALANCE DECLINA- BIFILAR | BALANCE DECLINA- BiFILaAR | BALANCE DECLINA- Biritar | BALANCE
Corrected. TION. Corrected. | Corrected. TION. Corrected, | Corrected. TION. Corrected. | Corrected.
Mic. Diy. iS p Se. Div. |! Mic. Div. 0 “ Se. Div. Mic. Div. 2 f Se. Div. Mie. Diy.
22 gH 6h,
402-7 | 25 07-38| 545-0 396-6 | 25 10-45) 546-1 399-5 | 25 08-11 | 548-4 389-4
402-4 07:46 | 545-1 397-0 10-38 | 545-8 399-6 08-29} 547-9 388-6 |
401-8 07-81) 545-4 397-3 10-51 | 546-4 399-4 08-38} 547-5 388-6
400-4 07-87 | 545-1 397-0 10-75 | 546-6 399-5 08-38] 547-0 re
401-4 07-47 | 544-9 396-9 10-81 | 546-3 399-3 08-56] 547-4 388°3
401-3 07-81] 544-5 396-8 10-78 | 547-8 399-4 08-21) 548-0 387:8
400-9 08-08| 545-2 396-9 11-14| 547-6 399-7 08-29 | 547-9 385-4
400-7 07-87 | 544-9 396-9 10-80 | 546-6 399-8 08-38 | 547-7 386-0
400-6 08:08 | 545-3 396-8 10-63 | 546-9 399-5 08-28] 547-6 386-2
400-5 08-31 | 544-6 397-2 10-70 | 547-1 399.2 08:08 | 547-7 387-1
400-1 08-11} 544-6 397-5 10-54 | 547-4 399-1 08-14} 547-9 386-5
399-9 08-52) 544-1 397-8 10-43 | 547-4 399-4 07-94] 548-0 385-9 |
23h, 3h, ne
400-1 } 25 08-63 | 544-2 398-2 | 25 10-47| 547-5 399-7 | 25 07-87| 548-3 385-4
400-1 08-65 | 543-7 398-5 10-23 | 547-7 399-1 07-84} 548-2 385-5
400-0 08-70 | 543-3 399-0 10-14] 547-7 399-1 07-85 | 548-2 384-2
399-6 08-52} 543-2 399-2 10-06 | 548-3 398-9 07-85 | 548-2 384-9
399-3 08-41 | 543-2 399-5 10-07 | 548-5 398-7 07-87 | 548-5 385-9
399-8 08-80} 543-1 400-2 09-89 | 548-2 398-0 07-84] 548-5 385-7
399-3 08-82 | 542.4 400-7 09-86 | 548-6 397-9 08-03 | 548-6 383-7
399-2 09:05 | 542-6 400-6 09-77 | 548-0 397-3 07-92 | 548-1 384-4
399-3 09-19 | 543-0 400-0 09-56 | 547-7 396-9 07-87 | 548-1 384-4
399-3 09-19} 543-2 | 400.4 09-42 | 548-1 395-9 08-01) 548-2 384-2
398-9 08-72) 543-3 400-0 09-35 | 547-7 395-9 07-51 | 548-2 384-4
398-9 09-35 | 543-3 399-9 09:19 | 547-8 395-6 07-74 | 548-2 384-6 |
oh, 4h, 8).
398-5 | 25 09-26| 543-5 400-1 | 25 09-00] 548-0 395-6 | 25 07-84| 547-8 384-8
398-7 09-62) 543-7 399-4 08-99 | 548.0 395-2 07:78 | 547-8 384-8
398-5 09-79] 543-8 399-6 08-85 | 547-4 394-9 07-71 | 547-8 385-8 |
399-1 09-59| 543-1 399-8 08-79 | 547-4 395-0 07-60) 548-1 385-8
399-1 10-27 | 543-3 399-9 08-72) 547-4 394-5 07-60 | 548-1 387-1
399-0 10-16} 543-0 399-9 08-65 | 547-4 394-7 07-67 | 547-7 387-2
398-9 10-33 | 542-6 400-1 08-55 | 547-5 394-2 07-78 | 547-8 386-6
398-6 10-30} 544-5 400-4 08-53 | 548-1 392-9 07:76 | 548-2 386-7
398-6 10-30] 543-3 400-3 08-34 | 548.4 392-3 07-71 | 547-8 386-5
398-7 10-30] 543-8 400-2 08-21} 548-4 392-3 07-91} 547-1 386-5
398-5 10-54] 544-3 400-1 08-21} 548-4 392-7 07-81} 547-4 386-6
398-4 10-83 | 544-2 399-8 08-34 | 548-1 392.8 07-81 | 547-5 386-6
1}, 5b. gh,
397-9 | 25 10-75| 544.3 400-2 | 25 08-18] 547-8 392-2 | 25 07-78 | 547-3 386-4
397-9 10-65 | 544-6 399-9 08-18} 547-6 392-0 07-78 | 546-8 386-2
397-6 10-70 | 544-7 400-2 08-21 | 547-7 392-4 07-76| 546-2 387-0 |
397-9 10-70 | 544-9 400-6 08-31} 548-3 391-7 07-74| 546-6 386-9 |
397-6 10-34 | 545-0 400-1 08-28 | 548-5 391-3 07-67 | 546-0 387-4
397-5 10-53 | 544-8 399-6 08-23] 548-5 391-3 07-67 | 545-9 387-3
397-7 10-30 | 544-4 399.7 08-31 | 549-3 389-8 07-54 | 546-4 387-8
397-6 10-20 | 545-4 399-4 08-34 | 548-9 390-3 07-57 | 545-8 387-7
397-6 10-30 | 545-4 399-3 08-34 | 548-3 390-2 07-84 | 545-1 386-5 |
397-2 10-18 | 545-6 399-8 08-41 | 548-2 390-5 07-60 | 545-2 385-2
396-8 10-47 | 546-0 399-8 08-31| 548-6 390-1 07-47 | 544-8 385-6
396:0 10-51 | 546-3 399-3 08-28} 548.5 389-7 07-52) 544.1 384.9
BALANCE. Observed 3™ after the Declination, s-=0-000010.
BiFinar. Observed 2™ after the Declination, k=0-000140.
it
The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly
Observations of Magnetometers.
} . . .
|) When double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the previous
position being appreciable, the micrometers were not altered.
:
LT RTE 6 ASST
Vey
a“
ba
EXTRA OBSERVATIONS
OF
ss MAGNETOMETERS
\
ys
- MAKERSTOUN OBSERVATORY.
mw .
1845.
' MAG. AND MET, ops. 1845.
gaia
90 ExTRA OBSERVATIONS OF MAGNETOMETERS, JANUARY 0—9, 1845.
Gott. Gott. Gott.
a DECLINATION. Pts aay ; iam: Mean DECLINATION. Pikccceae | oe Mean DECLINATION,
ime, wisi Time. Time.
Gh 4a Min. ~ ‘ Min. | Se. Div. || Min. | Mic. Div. Gh! ire Min. = U Min. Se. Div. | Min. | Mie. Div. ao oe Min. . a,
OMS) (0) S250 ny 2 | 532-8 3 | 615-3 9 7 || 15 | 25 11-01] 17 | 534-1|) 18 | 665-1 9 10
10 12-92|| 12 | 540-9] 13 | 611-9 25 09-96 || 27 | 537-3 || 28 | 663-5 9 11*! O |} 24 566
15 13-81 || 17 | 541-3) 18 | 611-5 30 09-08 || 32 | 530-4] 33 | 667-6
30 15-98 || 32 | 534-0|) 33 | 605-9 35 09-26 || 37 | 531-5] 38 | 668-8 1 55-3
45 11-08 |] 47 | 532-1 |) 48 | 599-6 9 8*i O 06-59 2) o25-0 3 | 688-4 ;
55 08-68 || 57 | 527-9} 58 | 601-6 5) 06-43 7 | 524-1 8 | 695-0
0 16*|| O 08-05 2 | 526-3 | 3 | 603-4 20 07-78 || 22 | 530-5 |] 23 | 726-3 5 | 46-8)
(3) 08-14 7 | 526-8 8 | 606-0 25 07-51 || 27 | 536-5]! 98 | 731-1 ‘
Ly 09-96 || 17 | 528-9) 18 | 609-1 32 | 534-0]| 33 | 730-5 1 44.7
20 10-98 || 22 | 529.4 | 23 | 611-2 35 09-08 || 37 | 536-2'|| 38 | 726-9
25 11-39 || 27 | 530-0|| 28 | 610-1 50 09-49 || 52 | 522-9] 53 | 728-4 9 46-2
OM7 0 11-91 2) Bey 3 | 610-4 55 05-45 || 57 | 528-2]! 58 | 733-6 10 46-71
—|——|———____| —— 9 9*| O | 25 00-27|| 2 | 558-8]| 3 | 766-6
1 4 0 | 25 12-08 2 | 528-7 3 | 643.2 5 | 24 59-12 7 | 580-0 8 | 832-4 12 48-8}
10 10-77 || 12 | 537-6 || 13 | 641-0 10 59-23 || 12 | 554-4 || 13 | 869-7
15 11-44]]| 17 | 537-5 15 58-42] 17 | 542-1] 18 | 848-6 4
1 TRE ES; 0 12-20 2 | a3 fl 3 | 640-3 || 20 57-34 || 22 | 528-7 || 23 | 820-1 15 | 24 54-7
il ¥¢ 0 12-67 2 | 531-9 3 | 631-9 25 58-94 || 27 | 516-5 || 28 | 806-9
10 04-44 |} 12 | 535-6} 13 | 630-1 30 | 24 59-43 || 32 | 504-4/| 33 | 789-0
15 04.24 || 17 | 539-7 | 18 | 629-3 35 | 25 00-60]| 37 | 503-4|| 38 | 767-9
20 01-65 || 22 | 547-5 || 23 | 627-4 40 | 24 56-13 || 42 | 520-9)! 43 | 738-1 19 | 25 00-2
25 03-43'|| 27 | 549.2) 28 23 45 | 24 58-36]) 47 | 515-411 48 | 733-0 20 | 25 00-0
30 06-63 || 32 | 544-7] 33 | 628-4 50 | 24 59-06]! 52 | 511-1]}} 53 | 729.9 22 | 24 59.2
40 11-44 ]} 42 | 538.4 55 | 25 00-18]) 57 | 504-3 || 58 | 704-9
if es) 0 11-34 2 | 536-2 3 | 626-5 9 10*/| O 04-14 2 | 499.7 3 | 682-3
30 13-93 || 32 | 534-7 || 33 | 624-6 Bs) 04-31 7 | 543-8 8 | 694-5 25 58
iy) 0 12-96 2 | 536-2 3 | 621-2 10 07-13 || 12 | 503-6|| 13 | 640-9
1 10 0 08-19 2) oa1>4: 3 | 620-7 15 | 25 04-66) 17 | 511-5]! 18 | 605.4 27 49-9,
10 08-82 || 12 | 537-4|| 13 | 620-6 20 | 24 51-86 || 22 | 599-2]! 23 | 633-4
1 0 11-61 2 | 532-9 3 | 619-1 24 26-43 || 24 | 587-7 29 41-0
$$ | | ——_______|| —__ —_—|——__— 25 19-63 || 26 | 561-2 30 39
2 10 0 | 25 06-68 2 | 529-6 3 | 632-5 26 18-89 || 27 | 543-7 || 27 | 580-0
10 07-34 || 12 | 530-3 || 13 | 632-6 28 | 534-4 ae 41-2
Oeil 0 13-05 2 | 536-0 3 | 621-5 29 22-32 || 29 | 529-0
S SS —— 30 31-07 || 30 | 517-0|| 31 | 517-6 35 41-1
By hiss 0} 20 11-37 2 | 539-9 3 ) 593-5 Be My isis
10 10-56 || 12 | 538-3) 13 | 595.2 32 32-89 || 32 | 515.2 37 41-1
3 16 0 12-02 2 | 535-6 3 | 598-8 33 | 515-4|| 34 | 557-9
cll ect Ee al a 35 31-74 || 35 | 514.7 40 41-7
Tae) Om 2a A444! wae 537°3 3 | 602-6 36 34-00 || 36 | 509-9
15 13-46 37 | 506-1 || 37 | 502-3
32 15-51 || 33 | 535-0] 34 | 610-0 38 36-05 || 38 | 501-8
iv <8 0 13-19 2 | 532-0 3 | 608-8 39 | 501-2)) 39 | 499-8 45 47-7
; 40 33-87 ;
i Ball 0 | 25 17-60 2 | 540-0 3 | 597-2] 42 41-70) 42 | 493-9 47 47-1
15 18-07 || 17 | 542-0 43 | 490-1] 43 | 487.0
7 22 0 17-54 2 | 541-8 3 | 593-1 44 | 485-2
| a ee a ee 45 40-63 || 45 | 481-3 50 39-0
ee 0 | 25 22-37 2 | 533-0 3 | 607-0 46 | 479-4
10 D499) 2 5at-O Us) ould } 47 | 475-9
20 24-59 || 22 | 528-7 || 23 | 614-2 48 | 473-6|| 48 | 471-4
30 93-11 || 32 | 530-2]| 33 | 614-2 49 | 474-6 55 39-0
40 22-87 || 42 | 534-1 || 43 | 612-0 50 37-29 || 50 | 477-0
oy 8) 0 21-90 PA |) Ber! 3 | 614-6 | d1 | 483-2)
9525 (0) 15-47 2 | 536-9 3 | 647-9 52 40-15 || 52 | 481-2)
15 19-73 || 17 | 533-1] 18 | 658-2 I 53 | 480-1] 53 | 410-9}
20 20-29 || 22 | 532-0} 23 | 658-5 || 54 | 479-7 9 12*/ 0 44.3!
30 20-65 || 32 | 532-7|| 33 | 658-2 55 48-27 | 55 | 478-9
9 6 0 16-43 P|) Baro 3 | 653-4 | 356 | 473-5
Oia 0) 12-93 2 | 535-4 3 | 663-0 | 57 471-0
10 12-2211 12 | 532-511 13 | 665-3 58 | 466-5 || 58 | 368-1 5 50:8
Bririnar. k=0:000140. BALANCE. k=0-000010.
* See notes on the Aurora Borealis, after the Hxtra Observations of Magnetometers.
Jan. 94 102 23m, Bifilar reading probably highest (615) at this time.
Jan. 9411» 22m, Bifilar vibrating 20 sce. div.
S585 So EE i i i ey RT ORS) ORS Ay) A Re ee
* See notes on the Aurora Borealis, after the Extra Observations of Magnetometers.
Jan, 92 15h 4m,
Jan, 92 15h 5m,
Bifilar vibrating 20 div.
Bifilar vibrating 12} div.
EXTRA OBSERVATIONS OF MAGNETOMETERS, J ANUARY 9—10, 1845. 91
IFILAR BALANCE Gott. BIFILAR BALANCE Gott. BIFILAR BALANCE
rrected. Corrected. Mean DECLINATION. Corrected. Corrected. Mean DECLINATION. Corrected. Corrected.
Time. Time,
.| Se. Diy. || Min. |Mic.Diy.J 4. bh. || Min.}| ° = ” Min. | Sc. Div. || Min. | Mic. Div.J d. h. || Min.| ° ” Min. | Se. Diy. ||Min. |Mic. Diy.
458-4 O2 6 | 477-3 9 14 || 45 | 54 54-84]] 47 | 445.4 || 48 | 650.2
455-4 7 70-8 7 | 381-9 49 | 423.7
446-0 9 | 24 48-67 2) 461-2 8 | 385-2 50 | 25 00-37 || 51 | 429-3 ]| 52 | 633-9
443-0 10 47-96 || 10 | 464-5 53) | 497.3
445.1 ||" 3 | 375-6 11 | 470-5/| 11 | 388-0] 54 | 429-8
447.4 12 47-35 || 12 | 469-9 55 04-31] 57 | 426-8 || 56 | 618-2
454.9 13 | 474-5 || 13 | 386.2 59 | 451-1 ]) 58 | 611-3
455-6 15 | 476-5 9 15 0) 04:95 2 | 445.4 3 | 603-5
463-3 16 | 480-6 || 16 | 408-8 4 | 430.7
467-1 8 | 367-4 il7/ 46-72 || 18 | 497-2)| 18 | 425-6 0) 08-29 7 | 426-9 8) |) 572-7
466-7 19 | 499-5 9 | 436-5
462-2 20 47-35 || 20 | 495-9 10 14-91 || 12 | 422-6]! 13 | 598.8
459-0 |} 11 | 353-8 21 | 494-0 14 | 424.6
462-3 22 49-17 || 23 | 490-2]) 23 | 456-0 15 26-65 || 16 | 413-1
470-2|| 13 | 339.8 24 | 482-0 17 | 407-7 || 17 | 608-7
474.7 25 49.74 || 25 | 477-3 18 | 408-7
474-2 27 | 474.4 19 | 409-8 || 19 | 612-0
472.3 || 16 | 314.9 28 | 479-6)|| 28 | 454-6 20 29-77 || 22 | 427-5 || 23 | 626-3
470-8 30 49-51 || 31 | 480-4 21 27.68
463-3 || 18 | 300-1 32 | 481-0}) 33 | 477-1 24 23-96 || 25 | 461-6 || 26 | 659-5
460-5 34 | 495-9 27 21-63 || 28 | 486-2]| 29 | 661-0
458-7 || 21 | 299-3 35 | 24 53-27]| 36 | 507-31] 36 | 506-0 30 18-45 || 31 | 494-9 || 32 | 641-7
474.2 37 | 513-6|| 37 | 517-8 33 | 495-6 || 34 | 634-6
470-2 || 23 | 313-2 40 | 25 00-40 || 41 | 525-1 35 | 497-2
460-1 42 | 523-3]| 43 | 544-4 36 | 25 05-69) 38 | 499-8 || 37 | 643-5
449.3 45 05-42 || 46 | 511-1]| 48 | 539-4 40 | 24 57-89 || 42 | 507-3 || 43 | 645-7
449.2 || 26 | 323-1 49 | 529-5 45 56-57 || 47 | 503-3 |] 48 | 640-7
450-0 50 114-22 51 | 549-6 50 98-82 | 52 | 499-8 || 53 | 642-5
458-9 || 28 | 359-9 52 | 502-1 9 16 0 55-47 2 | 500-3 3 | 631-1
471-5 53 | 547-7|| 54 | 557-5 5 | 24 57-68 7 | 506-7 8 | 631-8
479-1 (53) 10-50 || 56 | 567-5 20 | 25 00-03 || 21 | 526-0 || 22 | 630-1
473-9 || 31 | 368-3 57 late oll oe | ald 36 09-05 | 37 | 502-6|] 38 | 633-6
470-4 58 | 567-0 51 05-52 | 52 | 512-3
465-9 || 33 | 360-7 59 | 558-3 9 17 0 06-09 2 | 524-1 3 | 647-1
459-0 9 13*| O 06:70 2 | 543-6 3 | 594-3 10 08-36 | 12 | 510-8|| 13 | 643-5
460-4 || 36 | 349-2 5 08-68 7 | 5348 8 | 631-6 30 09-82 || 32 | 510-3 || 33 | 642.3
459-6 10 | 25 07-05 || 12 | 502-8 || 13 | 618-3 51 10-33 | 52 | 521-7|| 53 | 632-3
459-0 || 38 | 342-1 14 | 497-9 9 18 0 10-90 2 | 522.9 3 | 629-4
453-9 15 | 24 55-47 || 17 | 498-3]] 18 | 575-2 15 13-49 || 16 | 525-5 || 17 | 619-1
450-3 || 41 | 333-1 20 54-92 || 22 | 476-1 || 23 | 528-49 9 19 0 12-48 Dae sole 3 | 614-0
446-1 24 | 474-7 10 13-03 || 12 | 529-8 |] 13 | 615-8
B | 445-41) 43 | 335-1 25 59-43 || 27 | 488-8 || 28 | 545-2 20 13-57 || 22 | 530-9 |} 23 | 614-0
> | 446-5 29 | 496-2 9 20 0 | 14-46 | 2 | 529.7 3 | 611-3
441-8 || 46 | 345-7 30 54-10 || 32 | 514-7]| 33 | 578-3 = - ——
443-0 || 48 | 363-2 Bi) 47-76 || 37 | 505-6|| 38 | 561-27 10 8 0 | 25 10-92 2 | 518-7 3 | 648-5
447-1 36 47-84 || 39 | 502-6 10 11-98 || 12 | 519-4 || 13 | 652-7
446-9 40 48-33 || 42 | 495.4|| 43 | 546-7 30 13-72 | 32 | 525-9 || 33 | 643-9
447-6 45 52-70 || 47 | 498-7|| 48 | 562-5 50 04-58 || 52 | 552-3 |} 53 | 612-5
444.9 50 51-49 | 52 | 486-6 || 53 | 571-9 50) 06-46 || 57 | 554-2]! 58 | 604-0
439-9 || 53 | 362-5 55 46-70 || 57 | 476-8|| 58 | 555-7} 10 9 0 09-74 2 | 537°3 3 | 604-6
436-5 9 14*/ Oo 45-27 2 | 479.2 3 | 570-4 5 06-63 7 | 534-0 8 | 600-7
430-5 5 44.32 7 | 475-2 8 | 576-9 10 04-37 || 12 | 543-2]] 13 | 595-0
429-4 10 44.76 || 11 | 448-2]) 12 | 552-6 15 06-27 | 16 | 543-5]| 17 | 593-3
423-9 13 | 441.2 25 10-67 || 27 | 540-9 || 28 | 589-5
414-7 || 58 | 329-5 15 49-98 || 17 | 458-5 || 16 | 551-4 30 14-13 | 32 | 537-1 || 33 | 590-8
411-9 19 | 472-7 || 18 | 568-5 35 14-89 | 37 | 527-8]| 38 | 594-8
422-6 20 53-07 || 22 | 479-0]| 23 | 593-9 41 13-81 || 42 | 526-9|| 43 | 597-0
438-3 25 51-19 || 27 | 478-1 |} 28 | 605-49 10 10 0 13-61 2 | 527-6 3 | 601-1
450-7 3 | 335-3 30 51-43 || 32 | 472-1] 33 | 605-547 10 13 0 15-71 2 | 537-9 3 | 581-2
463-8 35 52-15 || 37 | 460-4] 38 | 609-5 10 14-85 || 12 | 537-5 |} 13 | 579-1
) | 472-7 40 53-20 || 42 | 464-1 || 43 | 640-74 10 14 0 12-69 2 | 527-6 3 | 589-6
BIFILAR. k=0-:000140. BALANCE. k=0:000010.
EXTRA OBSERVATIONS OF MAGNETOMETERS, J ANUARY 10—21, 1845.
92
Gott. BIFILAR BALANCE Gott.
Mean DECLINATION. Corrected. Corrected. Mean
Time. Time.
de 7h Min. 2 id Min. | Se. Div. || Min. | Mic. Div. Gh lit
10 14 | 15 | 25 11-91] 17 | 527-9]! 18 | 590-14 16 19
10 15 0 12-01 2 | 528-3 3 | 597-5
AS 2 ee eS ee es 16 20
ih 7 0 | 25 07-24 2 | 538-4 3 | 619-3
10 08-25 || 12 | 535-9]| 13 | 619-2} 16 21
20 08-38 || 22 | 541-4 || 23 | 616.4 =
30 10-36 || 32 | 540-5 19 13*
iM s 0 14:53 2 | 531-7 3 | 613-2
12s OFN25 17-20 2 | 535-4 3 | 57025
30 14-91 || 32 | 541-3] 33 | 583-6
12 14 0 14-80 2 | byshile3} 3 | 591-5
12 16 0 15-61 2 | 528-8 3 | 600-2
30 15-34 || 32 | 532.5 || 33 | 593.2
P27, 0 21-91 2 | 522.3 3 | 595-8
11 22-74 || 12 | 520-2] 13 | 592-8
15 21-93 |] 16 | 520-4 || 17 | 590-2
PAil 19-04 |] 28 | 529-3 || 29 | 582-6
40 18-82}! 41 | 531-8 || 42 | 579-8] 19 14
By) 17-65 || 57 | 532-41] 58 | 580-8
12 18 0 17-26 2 | 533.9 3 | 580-4
30 15-61 || 32 | 535-6]| 33 | 588-2
12 19 0 14-71 2 | 536-3 3 | 595-1
14 11 (0) |) 7455, ahilew/7/ 2 | 544-9 3 | 576-4
10 09-93 || 12 | 545-9]! 13 | 573-7 !
15 09-33] 17 | 545-5 || 18 | 572-4
35 09-17 || 37 | 538-0]| 38 | 570-7
40 09-02 || 42 | 536-3 || 43 | 570-1
f 14 12 0 09-76 2 534-5 3 | a72-l torts
10 11-71 |) 12 | 529.2) 13 | 574.5
15 11-81 || 17 | 529-5]| 18 | 575-4
35 13-90 || 37 | 533-3 || 38 | 574.7
14 13 0 16-48 2 | 537-2 3 | 570-3
10 16-65 || 12 | 537-7|| 13 | 569-2
38 13-22) 39 | 537-9 || 40 | 569-2
14 14 0 12-98 2 D8o-5 3 | 577-7
15 11 0 | 25 02-77 2 | 546-4 3 | 582-8
10 03-47 || 12 | 552-4]! 13 | 580-69 19 16
15 01-14 |) 17 | 557-4]| 18 | 576.4
20 05-02 || 22 | 559.7] 23 | 573-5
25 05:87 || 27 | 560-0]| 28 | 570-8
30 07-10) 32 | 555-2]| 33 | 570-44 19 17
40 08-29 || 42 | 542-1 || 43 | 571-5
50 08-66 || 52 | 534-8 || 53 | 574-64 19 18
7 15 12 0 12-62 2) 533-4 3 | 576-24 19 19
15 15-88 || 17 | 542-9|) 18 | 569-0
30 15-58 || 31 | 542-3 || 32 | 562-0] 19 20
45 14-06 || 46 | 534-9 || 47 | 564-0
15 13 0 14-64 || 2 | 535-4 3 | 566-6] 19 21
45 13-22 || 47 | 535-9]| 48 | 571-3
15) 14: |) © 14-60|| 2 | 534-0] 3 | 574-2
| ————_— || ——_|—_—_ — 19 22*
1 16 19 0 | 25 18-30 2 | 540-8 3 | 596-5
10 22-20 || 12 | 537-7 || 13 | 596-5] 20 2
15 23-07 || 17 | 538-4 || 18 | 594.9
20 22-50
25 21-61 || 27 | 543-1 |) 28 | 588-0
30 20-40 || 32 | 546-3 || 33 | 585-5
35 19-41 | 37 | 547-9 || 38 | 583-4) 20 3
BiFILaR. k=9-000140.
DECLINATION.
Min On
40 | 25 18-23
55 15-67
0 15-31
16 14-40
0 14-71
0 | 24 44.83
5 43-63
10 44-30
15 44.88
20 47-37
25 48-36
30 48-77
35 48-80
40 47-64.
45 46-41
50 47-46
55 51-05
0 | 24 54-79
10 | 25 02-23
20 03-63
30 04-81
35 04-89
40 05-38
45 03-70
50 02-96
55 01-95
0 03-50
5 05-29
10 08-52
15 10-70
20 12-18
25 13-14
30 13-44
35 15-11
40 15-31
50 07-78
0 04-31
10 06-97
30 03-94.
45 05-02
0 06-88
30 10-20
0 13-72
0 17-22
30 19-28
0 19-59
15 20-09
3 15-83
15 15-85
20 15-64
0 17-49
0 | 25 24-99
20 20-18
30 21-63
45 24-69
51 25-63
0 23-65
BIFILAR
Corrected.
Sc. Div.
42 | 549-2
57 | 547-4
2 | 544-2
17 | 541-9
2 | 541-2
Min.
BALANCE
Corrected.
Min.
43
58
3 | 583-1
18
Mic. Div.
581-4
2 | 493-5
7 | 492-8
493-3
501-7
509-5
516-3
520-0
540-7
516-5
511-4
512-6
2 | 530-2
2 | 535-4
534-0
537-5
532-7
533-9
2 | 531-4
BALANCE.
k=0:000010.
20
20
20
20
20
20
20
20
20
20
20
DECLINATION
5 | 25 24.36
10 21.36
15 19.0
20 15-6
25 15
35
40
46
50 5
50 4
0 59
10 ;
20 16-1
44 16.95
0 16-6
37 16-6
0 17-70
0 16-0
0 11-19
15 06:0)
30 05.7
0 13-1
30 14.31
0 09:
0 12.0
15 13:3
Zo 14-58
0 13-8
10 12.9
0 15-4
0 | 25 19.6
10 24.8}
15 24:8
20 23-6;
25 22-1
30 21-8:
35 20-1
40 18:3
0 13-6
0 | 25 03-3
5 05-9
10 07-47
20 09-35
30 12-20
40 13-1
0 13-6
0 09-38
10 10-28
33 12.0
0 11:
31 08-2)
35 08-4
50 11-6
0 12-71
20 12-11
0 14-78
0 10-8;
29 11-77
0 13-83
* See notes on the Aurora Borealis, after the Extra Observations of Magnetometers.
Jan. 204 2b 51m,
Clock put right ; error previously +45°6.
ExTRA OBSERVATIONS OF MAGNETOMETERS, JANUARY 20—24, 1845. oo
Gott. BIFILAR BALANCE Gott. BIFILAR BALANCE
<a saan Mean Ses amen: Corrected. Corrected. Mean Bem MON, Corrected. Corrected.
Time. Time.
r Sc. Div. |} Min. |Mic.Diy.f 4. h. |] Min. = & Min. | Sc. Div. || Min. | Mic. Div.j dd. h. Min. . e Min. | Se. Div. || Min. Mic. Div.}
7 | 526-3 8 | 629-4] 22 9 0 | 25 11-44 2 | 540-8 3 | 604-8] 24 6 || 20 | 25 14-10]| 22 | 524-8]) 23 | 647-1
» | 529-4|| 13 | 636-2 16 14-06 || 17 | 540-7 |] 18 | 602-9} 30 13-20 || 32 | 524-5} 33 | 650-34
7 | 524-5 || 18 | 643-8] 38 16-75 || 39 | 535-2] 40 | 604-6] 24 7 0 16-80 2 | 524-6 a | Goan
2 | 533-6]|| 23 | 649-4} 45 16-41 || 46 | 535-7 || 47 | 603-2] 36 07-84 || 37 | 518-0]| 38 | 659-1
537-5 || 28 | 654-5] 22 10 0 14-77 2 | 536-0 3 | 604-9 40 03-77 || 42 | 534-8 |} 43 | 648-8
7 | 534.5|| 38 | 663-3 —— = 45 10-47 || 47 | 533-0] 48 | 647-9
2 | 538-6]| 43 | 665-09 23 10 0 | 25 11-99 Ph |) year?) 3 | 594-24 * 50 12-15 || 52 | 530-7 || 53 | 642-51
7 | 538-6|| 48 | 667-7 15 02-01 || 17 | 536-1]| 18 | 587-8} By5) 08-14 || 57 | 550-5|| 58 | 629.0
D | 590-5|| 53 | 674-6 20 01-41 || 22 | 537-6]| 23 | 588.7} | 59 | 556-5 i
7 | 528.211 58 | 677-6 25 02-96 || 27 | 537-5 || 28 | 594.1] 24 8 0 15-34 2 | 547-3 3 | 629.4 }
2 | 530-8|| 3 | 675-7 30 05-82 || 32 | 536-8 5 19-53 7 | 532-5 8 | 631-4]
2 | 534-4|| 13 | 670-1] 23 11 0 12-92 2°] 529-0 3 | 588-9] 10 90-74 || 12 | 527-7) 13 | 632-3
2 | 535-6]| 23 | 665-1 20 09-35 || 22 | 531-8]; 23 | 587-0} 15 18-50 || 17 | 531-2]) 18 | 628-0
> | 538-011 46 | 651-2 40 06-77 || 42 | 531-7 || 43 | 582-6 20 18-30 || 22 | 532-6]| 23 | 627-5
2 | 531-6 3 | 642-7] 50 04-41 || 52 | 530-9}] 53 | 578-2] 30 16-08 || 32 | 534-9 || 33 | 624-6]
8 | 531-6/| 38 | 631-5 55 03-23 || 57 | 529-6|| 58 | 576-01 40 15-07 || 42 | 536-8 || 43 | 623-0
2 | 530-8 3 | 624-2} 23 12 0 _ 01-83 2 | 529-6 3 | 574-4 50 13-41 || 52 | 544-7]| 53 | 616-6
2 | 535-6 3 | 606-1 10 01-45 || 12 | 527-2|| 13 | 575-9] 24 9 0 15-47 2 | 539-0 3 | 618-9
2 | 522-5 3 | 621-1 20 03-02 || 22 | 534-9 || 23 | 579-2 10 15-74 |] 12 | 535-7]| 13 | 619-3}
523-0|| 18 | 621-4 390 05-40 || 37 | 533-3 || 38 | 581-9} 24 10 0 14-20 2 | 534-8 3 | 612-4
2 | 523-1]| 33 | 618-0 50 08-83 || 52 | 529-2] 53 | 587-6 10 10-27 || 12 | 538-7|| 13 | 612-1
Paogi=7 3 | 607-04 23 13 0 10-20 2 | 528-1 3 | 589-5 20 | 25 03-81 ]] 22 | 543-0] 23 | 608-5}
2 | 524-6|| 33 | 603-0] 23 14 0 09-89 2 | 529.2 3 | 586-0] 24 | 553-6
532.4 3 | 586-6f 10 14-33 | 12 | 532-5 || 13 | 579-4 25 | 24 59-50 |} 26 | 561-9 ;
2 | 531-9 3 | 584-8 | 15 14-46 || 17 | 533-9 || 18 | 570-3 27 | 562-5]| 28 | 599-4]
7 | 535-3 || 18 | 581-7] 20 13-02 || 22 | 533-4 || 23 | 563.2 29 | 563-3
7 | 534-2]| 28 | 581-2 25 10:77 || 27 | 533-6 || 28 | 558-4] 30 | 25 03-06 || 32 | 562-7|| 33 | 595.5
2 | 537-8 3 | 575-8 30 07-67 || 32 | 537-7 || 33 | 554.3 35 05-15 || 37 | 562-3 || 38 | 592.2]
Piieass-1 || 13d | 574-2 35 07-00 || 37 | 536-1 || 38 | 553-0 40 09-66 || 42 | 556-9 || 43 | 589-6]
2 | 536-7 3 | 574-6 40 06-70 || 42 | 534-3 || 43 | 550-5 45 13-19 || 47 | 546-6] 48 | 588-3
45 07-65 || 47 | 534-5 || 48 | 547-9 50 14.91 || 52 | 538-9] 53 | 585-14
2 | 539-3 3 | 569-3 50 08-70 || 52 | 536-5 || 53 | 542-3 | 595 12-62 || 57 | 543-4] 58 | 577-5
2 | 539-3 || 13 | 567-6 55 11-91 ]} 57 | 529-9 || 58 | 533-9] 24 11 0) 14-15 2 | 545-3 3 | 571-8]
7 | 539-5} 18 | 564-0} 23 15 0 12-36 2 | 522-1 3 | 520-5 i) 15-81 7 | 543-3 8 | 567-0
2 | 540-6/| 22 | 560-1} 5 11-37 7 | 516-0 8 | 506-4 * 10 16-63 || 12 | 540-8 || 13 | 562-7
7 | 542-8]] 28 | 556-7 10 09-79 || 12 | 511-7 || 13 | 496-1} 15 17-67 || 17 | 536-3 || 18 | 559-1]
2 | 540-1]| 33 | 555-4 15 08-11 || 17 | 505-21) 18 | 486-9} 20 17-76 || 22 | 530-5|| 23 | 557-0
7 | 540-8]| 38 | 552-8 20 04-71 || 22 | 506-5 || 23 | 483-2} 25 — 16-12] 27 | 523-4] 28 | 555-9 |
25 | 25 00-45]| 27 | 519.4 || 28 | 484-7 30 12-48 || 32 | 520-7|| 33 | 554.4
2 | 538-6 3 | 555-1 * 30 | 24 59-36) 32 | 527-8 || 33 | 486-1] 390 09-76 || 37 | 521-4] 38 | 553-6
——— 35 | 25 00-44) 37 | 531-6 || 38 | 486-5 40 07-67 || 42 | 521-5 || 43 | 553-6]
2 | 533-7 3 | 602-2 40 01-38 || 42 | 534-6 || 43 | 486-3} 45 05-52 || 47 | 522-5] 48 | 552-4}
7 | 533-9 8 | 602-2 45 02-22 )| 47 | 536-8 || 48 | 484-0} 50 04-98 || 52 | 523-8]) 53 | 541-4]
2 | 535-6|| 13 | 599-9 50 02-96 || 52 | 535-3 || 53 | 483-34 24 12 0 09-42 2 | 515-0 3 | 562-6
2 | 539-3 || 23 | 595-3 55 02-75 || 57 | 536-2 |) 58 | 481-7] 5 07-08 7 | 514-0 8 | 566-5
2 | 536-6]| 33 | 592-9] 23 16 0 02-86 2 | 536-4 3 | 480-05 10 06-68 || 12 | 512-9} 13 | 570-24
2 | 534-6] 43 | 591-0 b) 03-50 7 | 535-7 8 | 478-1} 15 05-45 || 17 | 515-5]] 18 | 573-75
2 | 534-8 3 | 589-6 30 06-06 || 32 | 522-1 || 33 | 485-7 20 04-55 || 22 | 514.2]} 23 | 575-8]
B | 537-2 3 | 580-4 35 06-12 || 37 | 521-8] 38 | 489-4} 25 03-35 || 27 | 510-9] 28 | 578-8
2 | 536-4|| 13 | 579-9 55 10-18 || 57 | 528-6 | 58 | 503-7 30 03-04 || 32 | 513-3 }) 33 | 581-5}
4 | 536-2|| 35 | 578-3] 23 17 0 11-81 2 | 530-0 3 | 506-0 35 04-46 || 37 | 514-7] 38 | 584-0
2 | 537-9 3 | 563-3 10 13-16] 12 | 530-4 || 13 | 508.4} 40 04.24 || 42 | 512-3}| 43 | 586-9}
2 | 526-6|| 33 | 569.7 20 12-48 || 22 | 533-7 || 23 | 510-0} 45 04-58 || 47 | 512-4|| 48 | 592-0
5 | 528-4] 37 | 571-4 30 11-84 || 32 | 533-3 || 33 | 513-4} 50 . 05-13 || 52 | 513-7]] 53 | 594-8
529-5 || 52 | 573-9] 23 18 0 11-68 2 | 532-2 3 | 531-2] 55 06-46 || 57 | 518-1] 58 | 598-7
2 | 531-4 3 | 572-94 23 21 0 19-51 2 | 531-2 3 | 561-2 24 13 0 07-49 2 | 519-9 3 | 600-7
2 | 532-8 || 23 | 572.7 15 19-48 || 17 | 535-2 |) 18 | 560-7 5 07-45 7 | 521-3 8 | 600-7
2 | 535-1 3 | 574-5] 23 22 0 14-91 2 | 537-4 3 | 559-4] * 10 07-62 || 12 | 521-3}| 13 | 599-3}
2 | 534-2 3 | 572-9 20 05-76 | 22 | 524-1]| 23 | 600-1
) 531-7], 31 | 572-1] 24 6 0 | 25 11-74 2 | 519-6 3 | 644-6 31 09-32 || 32 | 525-1] 33 | 601-8
my | 535-7 3) |) earhllar 10 12-76 || 12 | 522-6]| 13 | 646-6 35 10-13 | 37 | 525-81] 38 | 598-5
BIFILAR. k=0:000140. BALANCE. k=0:000010.
* See notes on the Aurora Borealis, after the Extra Observations af Magnetometers.
. MAG, AND MET. oss. 1845, 2A
94 ExtTRA OBSERVATIONS OF MAGNETOMETERS, JANUARY 24—27, 1845.
Gott. Gott. Gott.
Mean DECLINATION. Gare é Eee Mean DECLINATION. peti fae Mean DECLINATION,
Time. Time. Time.
Gl eh WP itteg yy) % Min. | Se. Div. || Min. | Mic. Div. d. ih. || Min. |] ° 4 Min, | Sc..Div. || Min. |Mic. Div. d. bh. || Min.] © ¢
24 13 || 45 | 25 12-26). 47 | 527-8|| 48 | 588-5] 25 6 || 25 | 25 12-96] 27 | 525-5|| 28 | 657-0] 26 14 || 41 | 25 13.3)
50 14-38 || 52 | 525-1 || 53 | 583-9 30 11-05 || 32 | 525-7 || 33 | 656-6 45 11-29
24 14 0 15-34 2 | 529-1 3 | 572-5 | 35 06-79 || 37 | 529-8 | 38 | 653-4 50 09-56
10 13-12 || 12 | 536-0)}) 13 | 562-0 40 05-49 || 42 | 543-9 || 43 | 647-6 55 08-52
15 16-73 || 17 | 538-4}) 18 | 561-3 45 11-52 || 47 | 535-5 || 48 | 650-4] 26 15 0 07-11
20 21-44 || 22 | 533-41 23 | 556-3 50 11-01 |} 52 | 534-3 || 53 | 646-9 #5 05-32
25 22-03 || 27 | 535-5 || 28 | 553-8 55 13-29 || 57 | 536-0] 58 | 644-6 | 10 05-15
30 20-80 || 32 | 529-7 || 33 | 547-7] 25 7 0 12-16 2 | 534.2 3 | 642-4 | 15 | 04.4§
35 15-59 || 37 | 529-5 |) 38 | 541-1 10 13-46 |} 12 | 532-1]) 13 | 639-1 | 20 04-32
40 11-21 || 42 | 532-3 || 43 | 537-8 20 11-15 |} 22 | 531-9}| 23 | 636-4 25 03-87
45 08:05 || 47 | 532-9|| 48 | 536-0 30 11-37 || 31 | 537-6 || 32 | 633-4 30 03-48
50 06-59 || 52 | 531-2|| 53 | 538-1 45 14-13 || 46 | 534-1] 47 | 628-6 | 35 04.8
24 15 0 04-29 2 | 530-4 3 | 549-6] 25 8 0 14-03 2 | 536-2 3 | 620-9 46 05-65
10 07-78 || 12 | 527-41) 13 | 560-3 30 12-18 )| 31 | 535-6} 32 | 616-3 50 | 05-74
15 09-35 || 16 | 526-5} 17 | 562-7 50 12-78 55 05-5:
30 12-95 || 32 | 525-4]| 33 | 573-5) 25 9 0 09-05 2 | 529-1 3 | 610-7} 26 16 0 05-00
45 12-35 || 46 | 529-6 || 47 | 578-1 5 | 25 00-20 7 | 538-1 8 | 601-7 *) 10 05-49
24 16 0 13-59 2 | 531-9) 3 | 583-6 10 | 24 52-50|) 12 | 565-9] 13 | 590-4 15 06-59
31 12-58 || 32 | 532-5 || 33 | 590-5 14 | 569-8 25 07-7
24 17 0 12.36 2 | 532-3 3 | 593-6 15 | 24 58-65|) 16 | 569-0 | 35 08-38
34 13-46 || 35 | 535-0 ]| 36 | 5932-7 17 | 567-7 || 18 | 589-1 40 08-58
24 18 0 13-02 2 | 536-7 3 | 591-9 19 | 566-2 | 45 07-7!
24 19 0 12.89 2 | 538-8 3 | 587-6 20 | 25 03-47 || 22 | 560-3 || 23 | 588-9 50 07-64
20 14.40 || 22 | 536-4] 23 | 588-2 25 02-93 || 27 | 555-1 || 28 | 585-7] 26 17 || O 08-4§
30 14.33 || 32 | 536-5) 33 73 30 02-59 || 32 | 555-2) 33 | 582-5 20 07:38
24 20 0 18-03 2 | 538-5 3 | 584-7 35 04-91 || 37 | 549-5 || 38 | 582-9] 26 18 | O 07-6)
24 23 0 17-09 2 | 532-5 3 | 590-6 40 06-66 || 42 | 541-7 || 43 | 584-5 i 08-0
30 16-41 || 32 | 534-4) 33 | 601-2 45 07-18 || 47 | 534-5 || 48 | 586-5 25 10-8
43 16-35 || 44 | 539-1 || 45 | 598.3 50 07-87 || 52 | 533-5 || 53 | 586-5 30 11-4
25 0 0 18.27 2 | 540-8 3 | 597-4 55 08-65 || 57 | 533-4] 58 | 587-1 : 35 13-4
12 20-13 || 13 | 540-5 || 14 | 598-1] 25 10 0 10-16 |} 2 | 530-0 3 | 589-3 | 40 11-4
ol 0 20-27 2. | 521-7 3 | 609-3 10 11-57 || 12 | 535-1] 13 | 588-8 | 45 12.95
12 | 526-9} 13 | 614-5 20 14.43 || 22 | 535-1 || 23 | 585-8 50 11:2
30 21-66 || 31 | 533-6 || 32 | 621-2 30 12-87 || 32 | 539-1} 33 | 581-2 | 55 12-(
37 | 524-5 || 38 | 623.4 45 12-95 || 47 | 533-01 48 | 583-4] 26 19 0 12
40 19-64 || 42 | 526.7 25 11 0 11-37 2 | 534-7 3 | 586-2 5 114
53 | 538-8 || 54 | 625-4 10 11-93 || 12 | 536-1 |} 13 | 587-0 | 10 12-0
25 2 0 19-29 2 | 542-4 3 | 628-4 20 11-51 || 22 | 537-6 || 23 | 585-7 | 15 12+
10 21-06 || 12 | 540-9 || 13 | 628.2 30 12-96 || 32 | 534-0} 33 | 587-6 25 il
50 99.20|| 52 | 538-9] 53 | 628-0 40 13-02 || 42 | 533-1 | 30 12:3
25 3 0 22-13 2 | 537-9 3 | 626.2 52 | 536-7 || 53 | 583-7 | 45 12-4
40 22-64 || 42 | 518-4) 43 | 640-6] 25 12 0 10-20 2 | 546-9 3 | 577-2] 26 20 || O 12-69
25 4 0 13-86 2 | 536.4 3 | 648-8 10 11-86 || 12 | 564-3] 13 | 565-8 30 15-0:
10 13-29 || 12 | 542-8] 13 | 652-8 15 15-94 || 17 | 558-4] 18 | 563-8] 26 21 0 15-9
25 15-04 || 27 | 543-2]| 98 | 653-9 26 18-84 || 27 | 540-2 |) 28 | 562.0 )
35 18-34 || 37 | 544-0] 38 | 653-7 30 18-07 || 32 | 536-0} 33 | 561-8] 27 3 O | 25 15-4
45 20-05 || 47 | 543-1 || 48 | 652.6 40 14-82 || 42 | 532-6|| 43 | 557-5 30 18:0
55 21-90 || 57 | 535-5 |) 58 | 650-2 = 27. 4 0 17-96
PAS 5) 0 21-06 2} 533-4] 3 | 646-7] 26 13 0 | 25 14-18 2 || 930-0 3 | 524-7] 27 6] 0} 15-2
10 18-94 || 12 | 527-3] 13 | 642.9 *! 10 11-95 || 12 | 532-0} 13 | 529-0 15 | 15-0
20 17-56 || 22 | 531-1/]| 23 | 642.3 15 11-14]| 17 | 534-7)}| 18 | 531-1] 27 7 0 | 14-04
25 17-06 || 27 | 529-9 28 | 644-4 20 11-59 || 22 | 530-4]) 23 | 535-3 |
30 17-10 || 32 | 527-4) 33 | 647-5 30 09-39 || 32 | 527-9]] 33 | 539-4] 27 10 | O | 25 014
35 14-64 || 37 | 528-5] 38 | 643.2 | 35 08-66 || 37 | 531-3 || 38 | 542-0 5 01-4
40 10-97 | 42 | 540-1} 43 | 640.8 40 09-02 || 42 | 533-9 || 43 | 545-5 | 10 02-6
45 11-14]| 47 | 545-3 || 48 | 640-3 55 10-70 || 57 | 536-9 || 58 | 554-8 20 04:5
50 11-10 }) 52 | 544-2] 53 | 641-5) 26 14 0) 12-49 2 | 537-3 3 | 558-2 | 30 05-6
25 6 0 13-16 2 | 542-5 3 | 641-7 oi 15: 18-94 || 17 | 532-2 || 18 | 558-1 40 08-01
10 15-07 || 12 | 536-6 | 13 | 644-1 20 18-32 || 22 | 532-9 | 50 10-83
15 16-48 || 17 | 528-0/| 18 | 649-5 25 18-67 || 27 | 532-4 Ze Ud 0 15-00
20 16-62 || 22 | 524-5 | 23 | 655-5 30 16-46 || 32 | 532-3 || 10 15-94
BIFILAR. k=0:000140. BALANCE. k=0:°000010.
* See notes on the Aurora Borealis, after the Extra Observations of Magnetometers.
BALANCE
Corrected.
Min,
43
48
53
58
EXTRA OBSERVATIONS OF MAGNETOMETERS, JANUARY 26—29, 1845.
Gott.
Mean
Time.
Mic. Div. d. h.
553-0] 27 11
553-9 |
555-9] 27 12
557-5
558-4
559-7} 27 13
562-7} 28 4
563-2
566-1} 28 5
567:8
568-4
569-0 |
574-5
576-4
578-2
580-6
583-8 | -
583-4
580-0
581-0
582-2
582:3
28
580:8 |
581-2
579-2
579-9
580-9
28
580-5
580-8
583-7
587:°5
586-7
582-4
28 10
616-3
615-2
617-0
606-4
600-1
597:8
578-5
578:3 |
578.4
580-3} 28 11
578:8
579-6
580-4
567-3
563-4
DECLINATION.
Min. e G
35 | 25 10-63
40 10-43
0 10-97
10 10-67
45 12-22
0 12-11
0 | 25 19-34
15 17-06
50 17-80
0 15-38
25 09-56
35 07-07
40 08-01
45 08-73
50 12-75
By) 12-95
0 13-05
10 14-73
20 14-30
35 15-12
16-26
13-72
10-41
11-30
09-10
09-87
06-32
12.04
01-51
09-73
12-45
07-74
10-14
12-15
12-35
10-92
10-97
08-03
06:76
03-92
03-67
08-12
09-13
13-12
12-40
10-38
08-75
07-64
06-26
04-04
04-24
05-11
05-35
06-19
09-86
16-13
18-68
22-50
19-73
02-80 |
BIFILAR
Corrected.
Min.
37
42
Se. Diy.
538-4
12
47
538-4 |
2 | 538-8 |
535-9 |
534.5 ||
534.6 ||
|
BALANCE
Corrected.
DECLINATION.
Min.
38 | 560-6
43 | 561-0
3 | 563-6
13 | 566-4
48 | 570-0
572-0
540-1
543-1 |
525-2 |
524.9 |
520-7 |
603-0
614-4
618-0
638.2
640-7
639-9
639-3
Mic. Div.
623-1}
08-34
11-62
10-43
10-40
12.04
13-25
16-82
21-56
24-25
23-12
16-92
23-49
23-54
23-49
24.35
24-32
24-32
24-08
20-11
25-76
23-24
26-13
24-86
23-32
23-11
24.84
25-67 |
23-85 || §
22.58
22-67
20-94
21-73
22-92
17-60
58-05
58-99
00-91
00-71
a 00-48
59-97
02-12
56-23
59-66 |
04-41 |
12-92 ||
13-29 |
14-15 |
24.08 |
24-22 || 5
26-18 |
20-92 |:
21-86 || <
16-03 |
59-63 |
BIFILAR
Corrected.
95
BALANCE
Corrected.
Min. -
42
ai
910-4
522.2 ||
Se. Div. || !
52
57
539-7
545-9 |
548-8 |
543-5 ||
540-4 |
528-3 |)
523-6 |
525-0
521-3
528-3
531-1
533-7
522-9
520-8
526-9
529-8 |
532-3 |
533-8
534-8
536-1
536-4
537-1
541-3
540-8
539-3 |
541-9 |
539-6
535-7
536-6
534-4
532:5
534-8
539-6
541-3
543-3
546-0
542-6
540-0
541-3 |
543-3 |
539-0
533-9
540-7 |
539-6 |
532-5
537-7 |
539-4
538-7
543-4
542-9 |
540-2 |
|
| 936-8 ||
540-9 |
535-5 |
546-7 || ¢
in. | Mic. Div. }
529-0
539-5 |
545-5 |
545-4]
542-8
542.3
544.6]
547-4 |
549.3
550-9 |
549-4
541-0
537-4 |
534.7 |
531-6]
537-7 |
547-2]
560-0}
558-6]
556-1
BIFILAR.
k=0:000140.
BALANCE.
k=0-000010.
* See notes on the Aurora Borealis, after the Extra Observations of Magnetometers.
96 EXTRA OBSERVATIONS OF MAGNETOMETERS, JANUARY 29—-FEBRUARY 35, 1845.
ae BIFILAR BALANCE Gott. BIFILAR BALANCE Gott.
lean DECLINATION. Gorrected: Gonmectedt Mean DECLINATION, | Ghisrrait Goce Mean DECLINATION,
Time, Time. Time. ‘
hang | vere) 2 7 Min. | Sc. Div. || Min. |Mic.Div.J[ 4d. h. || Min.} ° 7” Min. | Sc. Diy. || Min. |Mic.Div.J 4. h. || Min.] © ©
29 61] 50 | 25 03-81 || 52 | 545-3 || 53 | 632-9] 30 5 | 40 | 25 14-13 || 42 | 536-8|) 43 | 594-0] 5 5 || 30 | 25 21-8
55 11-21 || 57 | 521-2|| 58 | 645-8] 30 6 0 14.53 2 | 538-9!) 3 | 598-9 | 35 22-35
29 7 0 05-29 2 | 524-7 3 | 645-0 30 17-56 || 32 | 534-7 || 33 | 599-6 40 22.20
* 5 06-30 7 \o27-4 8 | 647-7} 30 7 0 16-68 | 2 | 536-1 3 | 600-9 45 21-08
15 13-69 || 17 | 531-4] 18 | 679-2] 30 8 0 | 25 02-89 2 | 523-7 3 | 608-3 | 50 21-25
20 12-22 || 22 | 521-3 || 23 | 702-6 5 | 24 56-54 7 | 532-4|| 8 | 606-4 55 23-6
25 04°75 || 27 | 527-5 || 28 | 685-5 10 53-81 || 12 | 544-2) 13 | 603-7 2 “GG 24-7
30 07-55 || 32 | 527.4}| 33 | 674-1 15 55-33 || 17 | 547-7/|| 18 | 602-5 5 24.93
35 08-99 || 37 | 533-6]| 38 | 662-2 | 20 55-20 || 22 | 550-1); 23 | 600-8 10 23-23
40 12-18 ||-42 | 536-4|| 43 | 659-4] 30 8 || 25 56-13 || 27 | 556-8 || 28 | 595-8 15 22-98
50 18-30 || 52 | 529-6]| 53 | 659-7 39 57-10 || 32 | 558-4 || 33 | 592-2 20 23-12
29 8 0 16-68 2 | alo 3 | 656-3 35 | 24 58-45] 37 | 559-9]! 38 | 589.3 25 21-0
10 14-67 || 12 | 529.3]| 13 | 654-2 40 | 25 01-78|| 42 | 556-6) 43 | 586-5 30 20-32
30 17-37 || 32 | 534.1] 33 | 633-2 45 03-92 || 47 | 551-2]| 48 | 584-6 35 18-18
29 9 0 14-43 2 | 527-0 3 | 616-8 50 05-56 || 52 | 545-9|| 53 | 583-3 40 | 17-60
10 02-05 | 12 | 535-6] 13 | 600-3 55 07-60 || 57 | 539-6 |] 58 | 583.0 50 14-58
15 05-00 || 17 | 541-8|| 18 | 596-5] 30 9 0 07-74 2 | 535-1 3 | 583-1 By 7 0 15-22
25 08-55 || 27 | 541-6] 28 | 586-5 10 07-13 || 12 | 524-3) 13 | 584-5 10 15-61
40 12-28 || 42 | 522.3]] 43 | 588-2 15 05-99 || 17 | 528-7}|| 18 | 582.9 20 16-12
50 | 25 05-15 || 52 | 543-1] 53 | 578-8 20 05-99 || 22 | 531-0 30 16-12
55 | 24 57-24) 57 | 577-9|| 58 | 560-2 41 10-70 || 42 | 529-8 || 43 | 584-5 40 16-3:
29 10 0 | 25 03-60 2 | 584-2 3 | 544-8 45 11-71 || 47 | 528-7 || 48 | 584.2 50 16-28
5 10-14 7 | 569-3 8 | 539-4 55 12-08 || 57 | 527-8 || 58 | 583-5] 5 8 0 16-1¢
10 14-46 || 12 | 552-1] 13 | 531-6] 30 10*/ O 12-01 2 | 529.9 3 | 582-2 *! 30 14.94
15 14-80 || 17 | 543-6|| 18 | 524.8 10 13-20) 12 | 532-7|| 13 | 579-9] 5 9 0 15-2
20 16-82 || 22 | 537-0 20 13-61 || 22 | 531-8 || 23 | 579-0 *| 30 11-68
30 17-49 || 32 | 523-0|| 33 | 526-6 30 13-63 || 32 | 532-4 || 33 | 576-9] 5 10 0 12-89
45 15-47 || 47 | 526-2|| 48 | 522-7] 30 11 0 14-03 2 | 535-9 3 | 570-6 * 10 13-12
29 11 0 12-80 2 | 533-3 3 | 516-0 — 5 11 0 13-16
10 16-89 || 12 | 521-2]| 13 | 509-5] 31 2 0 | 25 18-54 2 | 531-3 3 | 586-6 * 10 12-
15 15-15 || 17 | 513-2}! 18 | 513-0 30 16-05 || 32 | 529-9 || 33 | 538-2 46 12-6
20 09-96 || 22 | 514-9}; 23 | 516-6] 31 3 0 17-09 2 | 532-4 3 | 585-4 9 12 0 11-88
25 05-32 || 27 | 518-5 || 28 | 519-7 |———_|_ — — *| 10 11-8)
30 01-34 || 32 | 528-2)| 33 | 521-6 1M Oy 0 | 25 13-46 PAN sy 1595] 3 | 579-3 2455 12-6:
BYs) 01-51 || 37 | 547-1]| 38 | 521-9 15 10-00 || 17 | 545-3 || 18 | 571-9 35 12-25
40 04-95 || 42 | 539-2]; 43 | 523-0 30 11-71 || 32 | 536-2|| 33 | 573-8 40 11-3
45 08-46 || 47 | 536-2|| 48 | 519.7 50 12-95 || 52 | 544-9} 53 | 568-3 45 11-0
50 09-86 || 52 | 532-0 55 13-86 || 57 | 545-1]) 58 | 566-7 50 10-3)
29 12 0 09-69 2 | 526-2 3 | 529-5 Til 0 14-06 2 | 543-5 3 | 565-2 55 09-8:
5) 08-65 7 | 525-9 8 | 532-0 * 12 12-46 || 13 | 539-7] 14 | 563-5 5 13 0 09-4¢
10 07-44 || 12 | 528-8] 13 | 532-5 30 11-14]| 31 | 536-8 || 32 | 565-2 od [oat 10-09
20 09-86 || 22 | 529-7 || 23 | 536-1 47 11-54 |) 48 | 533-3 || 49 | 567-0 10 06-88
25 10-43 || 27 | 529-9|| 28 | 536-8 sss ——= ——— 15 08-01
30 11-46 || 32 | 530-9|| 33 | 537-7 3 lo 0 | 25 07-94 2 | 535-3 3 | 558-6 20 06-05
40 12-93 || 42 | 530-3 || 43 | 540-0 30 11-24) 32 | 535-7 || 33 | 563-3 25 04-14
50 14-43 || 52 | 528-5|| 53 | 543-27 3 16 0 12-11 2 | 535-5 3 | 562-1 30 04-58
29 13 0 12-73 2 | 521-9 3 | 547-4 = =— = 35 06-
10 09-10] 12 | 525-8]| 13 | 549-9} 4 8 0 | 25 13-23 2'| 531-0 3 | 575-4 40 06:3:
20 11-10 | 22 | 527-3}| 23 | 556-1 15 10-94 || 17 | 531-8|/ 18 | 579-1 45 06-59
30 13-09 || 32 | 526-2|| 33 | 559-7] 4 9 0 13-14 2 | 537-1 3 | 580-2 50 06:
29 14 0 14.87 2 | 528-9 3 | 564-1 = H_—__|-——_} 5 14 0 08-8
10 15-07 || 12 | 529-2] 13 | 566-9] 5 4 0 | 25 21-50 2 | 546-9 3 | 597-1 10 08-78
29 15 0 16-26 2 | 528-0 3 | 570-3 6 23-88 7 | 543-7 8 | 600-0 30 09-18
10 17-09 || 12 | 529-4|) 13 | 570-3 10 23-88 || 12 | 541-1]! 13 | 601-7] 5 15 0 11-77
15 17-51 | 20 23-54 || 22 | 543-7 || 23 | 603-0 5 19 0 18.
29 16 0 12-01 2 | 532-2 3 | 567-7} 5 5 | O 27-42 2 | 535-5 3 | 640-1 10 19-13
15 12-82 || 16 | 530-1]| 17 | 571-9 | 9 24-89 || 7 | 535-8 8 | 643-9 20 18-40
29 17 0 12-29 2 | 530-4 3 | 575-5 | 10 25-09 || 12 | 542-1]| 13 | 655-7 30 16-5
| 15 26-23 || 17 | 535-6]! 18 | 668-5 40 15-0
30 5 0 | 25 16-62)) ° 2 | 529-6 3 | 591-6 | 20 25-49 || 22 | 531-0/| 23 | 682-2] 5 20 0 13-7
32 | 534-6 || 33 | 597-5 25 | 23-27 || 27 | 527-9|| 28 | 687-0] 5 22 0 19-2
BiFiLaR. k=0-000140. BaLAncE. k=0-000010.
* See notes on the Aurora Borealis, after the Extra Observations of Magnetometers.
ExTRA OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 5—20, 1845. 97
j
BIFILAR BALANCE Gott. BIFILAR BALANCE
fe ae DECLINATION. Corrected. Corrected. aoe DECLINATION. Corrected. Corrected.
= = : cou Divd Min. ° ‘ Min.} Sc. Div.|| Min. | Mic. Div. Gee he Min. o 4 Min. | Se. Div. |} Min. | Mic. Div.
“| 56.5|| 33 | 689-4 30 | 25 25-83] 32 | 509-3|| 33 | 580-4] 12 15 | 10 | 25 11-71|| 12 | 534-9] 13 | 593-8
529.6 || 38 | 690-8 46 23-95 || 47 | 514-1]/ 48 | 581-0 30 11-77 || 32 | 536-1}| 33 | 530-0
531-2|| 43 | 695-8 0 23.72|| 2| 520-2) 3 | 583-7] 12 16 | oO 10-21] 2 | 537-3|| 3 | 536-7
534.0 48 | 698-3 20 20-38 || 22 | 527-2|| 23 | 579-1] 2S
537-8 || 53 | 705-8 34 20-18 || 35 | 533-4] 36 | 579-0] 13 14 | 0 | 25 16-50|| 2] 541-9] 3 | 553-1
533-11 58 | 721-6 0 22-01|| 2 | 528-3) 3 | 585-3 30 12-28] 32 | 536-5|| 33 | 551-8
530-8|| 3 | 746-0 | —— || —= 13 15 0 13-90 || 2 | 537-9] 3 | 551-1
524.4|| 8 | 754-4 0 | 25 05-29|| 2 | 527-2|| 3 | 587-8
596-5 || 13 | 763-2 10 06-76 || 12 | 526-1|| 13 | 589-6] 17. 6 || 0 | 25 09.33|| 2 | 526-8] 3 | 584-3
529.0| 18 | 769-5 20 06-63 || 22 | 527-1] 23 | 594-1 5 06:74) 7 | 530-8] 8 | 585-7
526-4|| 93 | 778-0 30 10-83 || 32 | 533-5|| 33 | 592.4 10 06-46 | 12 | 535-4|| 13 | 586-9
599-7|| 98 | 784-5 40 13-84 || 42 | 540-4|) 43 | 582.9 15 06-79 || 17 | 537-5|| 18 | 586-6
526-8 || 33 | 787-7 0 11-57|| 2 | 531-6|| 3 | 575-4 31 12-78 || 32 | 537-9] 33 | 585-9
596-8 || 38 | 777-9 10 09-35 || 12 | 533-7|| 13 | 574.4 35 13-83 || 37 | 534-6|| 38 | 585-4
525-8 || 43 | 769-6 15 09-47 || 17 | 533-3|| 18 | 575-3 45 15-24 || 47 | 532.8|| 48 | 584.8
524-51 53 | 739-3 0 13-47|| 2 | 535-5|| 3 | 574-67 ~ 55 16-28 || 57 | 532-6]| 58 | 584.4
528-9 Sieg Wes 0 13-07 2 | 535-8 Sl onOsoielin wa 0 16-06 2 | 533-2 3 | 583-5
530-9|| 13 | 701-3 10 14-11 || 12 | 534-74) 13 | 571-6] —||——— ——
9 | 531-3|| 93 | 688-7 15 14-40 || 17 | 535-2 19 13 | 0} 25 12-33]) 2| 547-6] 3 | 528-5
3 | 539-11 33 | 664-9 0 14-98 || 2 | 538-0|| 3 | 566-6 11 12-11) 12 | 545-8|| 13 | 527-5
2 | 537-1] 43 | 655-7 9 13-52|| 10 | 538-9|| 11 | 564.6 20 11-57 || 22 | 542-6|| 23 | 527-0
2 | 534-4|| 53 | 649-0 0 12-15 || 2 | 535-2|| 3 | 568.3 40 11-54|| 41 | 540-9] 42 | 528.5
2 | 532-7| 3 | 645-3 as : 19 14] 0 11-22|| 2| 541-3] ,3 | 529.4
2 | 534-8]| 33 | 637-0 0 | 25 09.42 2 | 539-5 3 | 561-1
2 | 536-9| 3 | 630-5 15 10-77 || 17 | 538-4|| 18 | 561-0] 20 1 || 0 | 25 21-91|| 2 | 555-1|| 3 | 595.4
2 | 537-7|| 33 | 622-6 0 04-68 || 2 | 532-3]| 3 | 556-5 10 21-90|| 12 | 545-1]] 13 | 530-9
21 534-4 3 | 626-5 10 06-57 || 12 | 529-6}} 13 | 554-6 26 24-05 || 27 | 549-0]| 28 | 533-0
21 534-7]| 13 | 626-5 20 10-58 || 22 | 527-8 || 23 | 562-2 45 18-21 || 47 | 529-7]| 48 | 539.7
2 | 535-9 3 | 612-7 30 14-11 |} 32 | 534-6|| 33 | 558-8] 20 2 0 19-39 2 | 538-4 3 | 541-8
2 | 534-9|| 13 | 613-4 45 12-70|| 47 | 537-5|| 48 | 549-1 30 23-34 || 32 | 553-1 |] 33 | 543-9
7) 531-5|| 48 | 615-1 0 08-56 2 | 535-3 3 | 545-71 20 3 0 22-03 2] 544-1 3 | 547-1
2 | 533-6 3 | 609-4 15 11-54] 17 | 534-0)! 18 | 544.3
2) 528-1]| 13 | 613-1 30 11-84 || 32 | 530-1 || 33 | 547-8] 20 10 0} 25 12-31 2 | 549-9 3 | 565-1
7 | 531-0}| 28 | 610-7 0 13-17 2 | 533-9 3 | 547-5 5 05-42 7 | 553-1 8 | 565-9
7 \ 532-41) 38 | 605-6 0 15-49 || Berar 3 | 556-5 10 | 25 01-81] 12 | 557-8] 13 | 564-8
42 | 529-7|| 43 | 603-5 10 16-82 || 12 | 525-9 || 13 | 554-2 15 | 24 58-20|| 17 | 552-0] 18 | 565-0
147 | 526-8] 48 | 602-8 0 14-70 2 | 536-8 3 | 548-2 20 56-10 || 22 | 543-7] 23 | 567-9
Wo2 | 525-51) 53 | 601-2 15 12-72 || 16 | 539-7 || 17 | 548-8 25 53-41 || 27 | 537-2|| 28 | 570-9
157 | 526-0] 58 | 600-2 38 12-18]| 39 | 541-2]| 40 | 552-7 30 52-53 || 32 | 533-6]| 33 | 574-4
2 | 528-6 3 | 599-0 0 12-29 2 | 541-4 3 | 557-0 35 53-51 || 37 | 533-8] 38 | 577-2
M7 | 528-1 8 | 598-0 |__| —_|—__ 40 56-47 || 42 | 534-3 |) 43 | 578-8
[12 538-4 || 13 | 589-4 0 | 25 12-43 2 | 535-5 3 | 562-7 45 | 24 59-77|| 47 | 532-5] 48 | 580-1
WL7 | 536-0) 18 | 583-6 5 12-85 7 | 544-3 8 | 559-8] 50 | 25 02-66 || 52 | 530-6] 53 | 580-4
22 535-7 || 23 | 582-3 10 14-30 || 12 | 544-9]} 13 | 558-2} 20 11 0 07-92 2 | 528-3 3 | 578-5
27 | 535-0} 38 | 580-5 30 07-46 || 32 | 539-0]| 33 | 555-8 10 10-50 || 12 | 528-6|| 13 | 575.7
32 | 534-4] 33 | 581-6 0 14-11 2 | 535-1 3 | 556-3 | 20 10-60 || 22 | 531-1]] 23 | 572.2
37 533-4 || 38 | 584-2 0 16-55 2 | 539:8 3 | 556-2 | 30 10-09 || 32 | 535-1 || 33 | 569.8
1k2 | 530-8] 43 | 584-9 9 17-12]| 10 | 540-7|} 11 | 553-9} 20 12 0 06-77 2 | 540-6 3 | 571-0
17 532-4 || 48 | 584-3 0 13-69 2 531-4 3 | 559-0] 15 09-32 || 17 | 532-4|| 18 | 572.4
Ib2 | 535-5 || 53 | 583-1 | Se | a4 120 13 | Oo 08-85 || 2 | 542-9|| 3 | 564.6
\2 531-8 3 | 585-1 0 | 25 10-85 2 | 537-4 3 | 570-7 30 07-84 || 32 | 530-7 || 33 | 572-8
2 528-5 || 13 | 585-0 15 11-59 || 16 | 539-3 || 17 | 569-9} 20 14 0 09.42 Bh ll Byeisi7/ 3 | 572:3
i 1 | 527-0|| 32 | 588-6 0 13-79 2 | 541-3 3 | 563-7} 20 16 0 14-40 2 | 525-6 3 | 555-8
} 2) 530-7] 3 | 592-3 —— — 10 16-18 || 12 | 528-2/| 13 | 553-0
)2 | 530-0 3 | 583-8 0 | 25 09-26 2 | 538-2 3 | 599-3 20 18-47 || 22 | 532-2|| 23 | 546-9
Wi2 | 530-9] 13 | 581-4 20 08-97 || 22 | 535-3 || 23 | 556-7 25 21-12)|| 27 | 527-0|| 28 | 543-6
|2 532-4 || 23 | 576-5] 12 14 0 14-43 2 | 554-6 3 | 536-2 30 22-67 || 32 | 524-1|| 33 | 541-3
2 | 535-41) 33 | 572-0 10 15-74 || 12 | 549-7]| 13 | 530-4 35 22-57 || 37 | 523-5 || 38 | 539.2
WE2 | 537-1] 43 | 565-5 20 16-19 || 22 | 546-3 ]} 23 | 525-1 40 23-66 || 42 | 524-2|| 43 | 530-7
42 | 534-7 3 | 570-8 30 15-20 || 32 | 539-8]| 33 | 522-0 45 23-14)|| 47 | 526-3] 48 | 5298.2
W'2 | 510-9 3 | 579-94 12 15 0 11-44 2 | 534-4 3 | 521-7 50 22-57 || 52 | 526-7 || 53 | 521-0
BiFiLaR. k—0-000140. BaLancr. k=0:000010.
* See notes on the Aurora Borealis, after the Extra Observations of Magnetometers.
eel en eee
MAG. AND MET. oBs., 1845. 2B
20 18
20 19
20 20
20
20 2
20
Piles 1
21 3
21
21
aoe
21.7
21 8
ail)
EXTRA OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 20—24, 1845.
Dacsenean, BIFILAR BALANCE Ba movie BIFILAR BALANCE See. D 3
Corrected. Corrected. 5 Corrected. Corrected. : ECLINATION
Time. Time.
Min. 2 #, Min. | Se. Div. || Min. | Mic. Div. di.m| She Min. e: 4 Min. | Se. Div. |} Min. | Mic. Div. dei. Min. a
55 | 25 20-11] 57 | 530-9|| 58 | 515-1 23 12 || 58 | 24 51-66 23 19 | 30 | 25 16.5
0 18-13 2 | 534-7 Byeiiiles)| | 285 115? 0 52-87 2 | 528-1 3 | 505-4 35
10 15-11] 12 | 533-5 || 13 | 506-9 5 55-44 7h 4) BBB ErE 8 | 511-3 50
20 12-04 || 22 | 534-8 ]| 23 | 507-9 10 | 24 58-47] 12 | 531-9] 13 | 518-4] 23 20 0
30 11-96 | 32 | 532-0|| 33 | 509-5 15 | 25 01-98}} 17 | 533-0]| 18 | 523-3 20
0 08-34 2 | 534-5 3 | 514-0 20 04-41 || 22 | 529-4 || 23 | 527-1] 23 21 0
10 07-38 | 12 | 539-0]} 13 | 517-8 25 05-53 || 27 | 525-2 || 28 | 525-7
20 08-08 || 22 | 539-6 || 23 | 520.3 30 05-63 || 32 | 526-8] 33 | 523-5] 24 4 0 | 25
0 09-84 2 | 533-4 3 | 524-8 35 05-60] 37 | 528-6] 38 | 521-2 5
36 15-27 | 37 | 527-11|| 38 | 529-9 41 07-17 || 43 | 527-8|| 44 | 521-3 10
40 15-61 || 42 | 529-2)| 43 | 529.5 45 08-50 || 47 | 526-0] 48 | 521-4 TS
53 17-93 || 54 | 534-4] 55 | 526-0 50 08-70|| 52 | 526-0}) 53 | 521-3 30
0) 18-75 2 | 529-2 3 | 527-9 55 09-76 || 57 | 526-1]) 58 | 522-7 35
12 18-50 || 13 | 526-0] 14 | 529-64 23 14 0 09-30 2 | 528-0 S|) o2p-l 47
it 17-96 || 28 | 531-1 ]| 29 | 528-9 10 09-12 || 12 | 529-3 || 13 | 526-9] 24 5 0
40 19-91 || 41 | 535-3 || 42 | 527-2 35 10-80 || 37 | 518-0}| 38 | 528-1 i
0 19.44 2 | 535-2 By) eines 40 09-46 || 42 | 516-9 || 43 | 527-6] 24 6 0 | 25
15 20-97 | 17 | 540-2]| 18 | 526-6 45 09-10} 47 | 518-8 |} 48 | 529.2 58 | 24
20 19-58 || 22 | 538-6 || 23 | 526-2 50 10-18] 52 | 524-6]) 53 | 527-7] 24 7 0
0 16-72 2 | 534-6 3 | 532-9 595 13-69} 57 | 521-4|| 58 | 524-6 5
38 13-25 || 39. | 529-2|| 40 | 541-0] 23 15 0 15-72 2 | 519-0 3 | 518-6 10
0 18-01 2 | 528-1 3 | 542-4 5 17-83 7 | 519-5 8 | 510-7 15
0 22-15 2 | 526-7 3 | 504-3 10 18-82 || 12 | 521-0|| 13 | 499-5 20
20 22-67 || 22 | 541-7]} 23 | 551-2 15 18-63 || 17 | 519-1 || 18 | 489-6 25 | 24
30 21-37 || 29 | 525-1 20 17-68 || 22 | 517-9 || 23 | 482-4 30 | 25
32 | 535-8 || 33 | 554-1 25 16-97 | 27 | 517-1 || 28 | 479-3 3a. | 25
34 | 536-5 30 15-54 || 32 | 520-6} 33 | 482-6 50 | 24
35 21-88 || 37 | 541-2]] 38 | 552-9 30 16-41 | 37 | 523-8 || 38 | 485-8 55
40 23-01 || 42 | 545-5 |] 43 | 552-2 40 16-46 || 42 | 525-0 || 43 | 482-8] 24 8 0
45 24-08 | 47 | 542-9]| 48 | 553-5 45 17-13 || 47 | 521-3 || 48 | 478-9 bad |
By) 21-86 57 | 534-9]| 58 | 554-4 50 18-10] 52 | 516-4 || 53 | 477-9 10
0 | 20-63 2 | 534-8 3 | 554-8 55 18-00 || 57 | 514-3|| 58 | 478-1 15
10 18-84 || 12 | 534.4|| 13 | 555-74 23 16 0 17-36 2 | 513-4 3 | 476-7 20
20 19-28 || 22 | 545-2]) 23 | 557-9 5) 15-99 7 | 509-4 8 | 474-1 25
30 23:04) 32 | 544-1 || 33 | 564-8 10 14-44} 12 | 508-3|| 13 | 471-6 30 | 24
4] 22-71 |) 42 | 538-3]| 43 | 569-4 1 12-63 || 17 | 513-9 || 18 | 471-8 35; | 25
45 21-70 || 47 | 536-0]| 48 | 572-0 20 12-33 | 22 | 512-8] 23 | 472-5 40
0 17-70 2) 930-2 3 | 578-2 25 13-19} 27 | 513-4]| 28 | 474-7 45
30 15-27 || 31 | 542-3]|| 32 | 583-1] 30 15-14] 32 | 512-6 || 33 | 475-9 50
0 17-00 2 | 541-6 on |, DOO 35 15-88 || 37 | 516-3]| 38 | 474-4
0 11-37 2 | 529-7 3 | 596-6 40 16-23 || 42 | 522-3 || 43 | 473-1 55
10 | 25 07-98 || 12 | 528-7]] 13 | 598-2 45 16-65 || 47 | 527-2|| 48 | 472-8] 24 9 0
30 | 24 59-50) 32 | 534-1 |] 33 | 599-2 50 17-29 || 52 | 530-5 || 53 | 468-5 * 5
35 58-42 || 37 | 534-9 55 18-45 | 57 | 528-3] 58 | 463-2 | 10
45 57-24 || 47 | 527-7|| 48 | 606-3] 23 17 0 18-61 QN529-7 3 | 458-2 18
50 57-41 || 52 | 529-0 10 17-10 |) 12 | 536-8 || 13 | 458-8 | 20
0 | 24 59-41 2 | 526-5 3 | 610-0 15 16-12) 17 | 538-8 || 18 | 458-5 | 25
10 | 25 02-45) 12 | 529-8]) 13 | 609-6 20 14-58 || 22 | 535-6]; 23 | 462-0 | 32) | 2a
30 | 08-75 || 32 | 534-3 |) 33 | 603-4 30 14-01 || 32 | 528-7 || 33 | 465-7 || 35 | 24
0) 14-68 2 | 539-1 3 | 588-5 46 08-08 | 47 | 534-9 || 48 | 476-2 | 403) 24
0 03-23 2 | 546-3 By ByAr/ars 50 08-95 || 52 | 533-6]| 53 | 481-2 45 | 24
10 06-06 | 12 | 543-8 || 13 | 575-2 53) 09-69 || 57 | 533-6 || 58 | 482-4 50 | 25
35 06-29 | 37 | 544-6|| 38 | 564-9} 23 18 0 11-71 2 | 528-7 3 | 484.7 55
0 14-53 2 | 537-0 3 | 6504-1 i) 09.44 an OoD-0 8 | 483-0] 24 10 0
10 10-56 || 12 | 531-8] 13 | 482-7 ball.
ae Tika ree “Tod 20 08-03 || 22 | 538-0|| 23 | 487-0 | 10 :
0 | 25 06-63 2 | 545-4 on ona-2 25 08-95 || 27 | 533-0 || 28 | 491-3 15 09-8
10 09-53 || 12 | 538-7]| 13 | 576-1 30 09-40 || 32 | 531-3 |} 33 | 493-5 20 08.
20 | 09-89 | 22 | 535-9} 23 | 573-9 23 19 10) 14-57], 2 | 533-8 3 | 498-0 25 2
40 10-75 || 42 | 535-8 |} 43 | 570-8 10 14-53 || 12 | 532-1]} 13 | 498-5 30 4 )
0 10-36 2 | 533-0 3 | 571-5] 26 15-32 || 27 | 531-4|| 28 | 502-0 35 09-5
BIFILAR. k=0-000140. BALANCE. k=0:000010.
* See notes on the Aurora Borealis, ajter the Extra Observations of Magnetometers.
Feb. 234 18h 20m,
Feb. 244 4h $m,
Feb. 244 8h 40m,
The declination and bifilar magnets have been moving backwards and forwards through a few divisions.
The instruments have evidently been slightly disturbed throughout the day.
Bifilar vibrating 13 sc. div.
ExTRA OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 23—25, 1845. 99
Gott. BIFILAR Batance | Gdtt. BIFILaR BALANCE
eens Gecot. Menu DECLINATION. Corrected. Corrected. Mean DECLINATION. Corrected. Corrected.
Time. Time.
& Sc. Diy. || Min. |Mic. Div.} 4. h. Min. |} ° ’ Min. | Se. Div. || Min. |Mic. Div. d. h. Min. 2 a Min, | Se. Diy. || Min. |Miec. Div.
2 | 530-9|| 33 | 502-6) 24 10 || 45 | 25 05-36}| 47 | 522-8] 48 | 487-2] 25 4 | 10 | 25 17-44] 12 | 641-5] 13 | 616-0
7 | 527-7 || 38 | 504-3] 24 11 0 05-79 2 | 516-8} 3 | 492-8 15 17-29 || 17 | 548-5 || 18 | 616-5
2 | 527-4|| 53 | 504-8 * 10 03-07 || 12 | 526-0 || 13 | 494.2 20 17-36 || 22 | 551-0|| 23 | 616-6
2 | 529.3 3 | 507-5 15 03-20 || 17 | 530-0] 18 | 492.1 25 17-70 || 27 | 546-3 || 28 | 616-2
ieesst-O |) 22 | 511-7 20 06-46 || 22 | 534-9) 23 | 490.4 30 18-10 || 32 | 539-3} 33 | 616-3
2 | 532-6 3 | 518-6 25 09-03 | 27 | 533-5 || 28 | 490-3] 25 5 0 15-64 2 | 544-9 3 | 607-9
30 09-35 || 32 | 532.3] 33 | 487-9 17 16-43 | 18 | 542-1] 19 | 601-8
2 | 547-1 2 | 617-0 35 08-23 || 37 | 532-2] 38 | 485-7 20 16:08 || 22 | 544-1 |; 23 | 600-0
7 | 551-0 8 | 615-2] 24 12 0 08-73 2 | 524-5 3 | 471-1 32 | 527-5
2 | 544-5|| 13 | 614-0 * 10 13-22 || 12 | 525-3]) 13 | 474-2 33 | 528-2] 34 | 601-7
7 | 544-5|| 18 | 611-2 20 15-61 || 22 | 533-9] 23 | 458.4 35 13-66 || 36 | 530-8 || 37 | 601-7
2 | 544-8 || 33 | 606-1 25 14.98 || 27 | 541-6|| 28 | 447-6 47 | 546-2|| 48 | 605-5
7 | 546-1 || 38 | 604-3 30 14.11 || 32 | 545-0] 33 | 438-1 49 | 545-6
3 | 545-4]; 49 | 600-3 35 14-57 || 37 | 541-5 ]| 38 | 433-4 50 08-79 || 52 | 542-7 || 53 | 607-8
2 | 542-1 3 | 595-3 40 14-37 || 42 | 537-4 |) 43 | 433-2 55 06-12 || 56 | 544-1]| 57 | 607-4
2 | 541-0] 33 | 589-5 45 13-76 || 47 | 533-9]) 48 | 433-61 25 6 0 | 25 05-05 2 | 543-5 3 | 609-0
2 | 538-1 3 | 581-6 50 13-63 | 52 | 530-1 |) 53 | 436-8 10 | 24 58-32] 12 | 553-01] 13 | 609-3
9) 554-1 24 13 0 11-66 2 | 520-9 3 | 444-6 15 | 24 58-82|| 17 | 551-8]) 18 | 609.4
2 | 558-2 3 | 587-9 *! 10 14-50} 12 | 531-0} 13 | 451-4 20 | 25 02-82]| 22 | 542-6] 23 | 612-7
559-1 8 | 586-0 20 03-99 || 22 | 537-0]) 23 | 454-2 25 03-84 || 27 | 537-6 || 28 | 603-5
561-9 || 13 | 582-1 25 00-84 || 27 | 538-2 30 04:15 || 32 | 538-7 || 33 | 614-0
7 | 559-1|| 18 | 576-6 30 02.75 || 32 | 539-9 || 33 | 454-1 40 05-58 || 42 | 533-1
561-4 || 23. | 571-5 40 04.08 | 42 | 536-8 | 43 | 457-6 50 04-61 | 52 | 530-0}) 53 | 614-7
557-0 || 28 | 569-4 55 04-48 | 57 | 530-7 || 58 | 463-7} 25 7 0 06.97 2 | 528-3 3 | 613-8
551-0 || 33 | 569.1] 24 14 0 04-61 2 | 529-2 3 | 465-8 22 02-50 || 23 | 528-1] 24 | 611-1
548-3 || 38 | 567-8 10 04.84 || 12 | 526-4]|| 13 | 467-3 30 00-53 || 32 | 535-5 || 33 | 611-4
526-5 || 53 | 578-0 * 20 04-31 || 22 | 522-3)|| 23 | 471-5 45 04-95 || 47 | 533-3 || 48 | 609-4
529-9 || 58 | 576-7 30 04.58 || 32 | 516-3 || 33 | 472-5] 25 8 0 06-63 2 | 538-1 3 | 603-8
| 534-3 3 | 575-9 40 08-01 || 42 | 510-5 || 43 | 477-2 30 11-37 || 32 | 530-9 || 33 | 604-4
. 537-8 8 | 574-8 45 08.34 || 47 | 513-9] 48 | 480-57 25 9 0 13-02 2 | 540-4 3 | 593-3
2 | 531-7|| 13 | 573-8 50 08-85 || 52 | 516-2] 53 | 478-4] 25 11 0 13-22 2} 530-4 3 | 527-0
526-5|| 18 | 576-1} 24 15 0 10.20 2 | 520-3 3 | 478-8 10 12-38) 12 | 534-5 || 13 | 522-0
528-5 || 23 | 572-1 10 12.04] 12 | 525-3] 13 | 487-8} 15 14-50 || 17 | 542-4]) 18 | 515-8
548-7 || 28 | 564-5 22 14.80 | 23 | 530-3 || 24 | 491-2 20 16-15 || 22 | 548-4) 23 | 506-7
548-4 || 33 | 561-7 30 18.43 || 32 | 524-1]| 33 | 493-2 25 16-57 || 27 | 553-7 || 28 | 495-2
546-3 || 38 | 559-0 35 18-82 | 37 | 521-0]) 38 | 489-4 30 16-15 || 32 | 556-4 |) 33 | 484-7
546-2 || 43 | 552-8 40 17-53 || 42 | 520-9]) 43 | 485-0 35 15-83 || 37 | 559-0]) 38 | 477-6
551-6 || 48 | 539-9] 24 16 0 12.35 2 | 533-1 3 | 487-6 40 15-79 || 42 | 559-7 || 43 | 470-2
alge oo | 551-1 30 11-03 | 32 | 530-1] 33 | 510-2 45 16-52 || 47 | 559-2) 48 | 462-9
509-6 24 17 0 09.03 2 | 518-4 3 | 513-7 50 16-15 || 52 | 554-3 ]| 53 | 457-2
513-1 || 58 | 550-7 20 15.18 || 22 | 511-0] 23 | 503-1 55 15-67 || 57 | 550-4] 58 | 453-5
515-5 3 | 553-6 35 16-38 | 37 | 517-2]) 38 | 485-7] 25 12 0 14-84 2 | 544-6 3 | 450-5
516-2 8 | 556-4] 24 18 0 16.28 2 | 527-9 3 | 471-3 5 15-04 7 | 537-6 8 | 449-4
518-6 || 13 | 557-2] 24 19 23 10-31 4 | 532-3 5 | 474-8 10 15-58 || 12 | 527-4]) 13 | 453-7
518-9 15 10-09 | 16 | 528-8]| 17 | 482-8 yp 10-50 || 23 | 502-2 || 24 | 466-4
523-3 || 23 | 556-9 36 12-15 || 37 | 528-8]| 38 | 494-8 25 05-87 || 27 | 509-1 || 28 | 468-8
532-4 || 28 | 550-54 24 20 0 14.18 2 | 523-0 3 | 511-1 30 | 25 00-84) 32 | 519-0] 33 | 468.3
521-7 15 12-02] 16 | 529.2]) 17 | 511-1 35 | 24 59-95 || 37 | 524-0] 38 | 466.4
520-2 || 38 | 538-7} 24 21 0 17-89 2 | 528-7 3 | 518.3 40 | 25 01-66|| 42 | 525-4]| 43 | 469-1
554-4 || 43 | 518-0 10 18-03 | 12 | 522-6] 13 | 520-4 | 45 05-45 || 47 | 524-3]/ 48 | 471.5
564-4 || 48 | 499-5 20 16-95 || 21 | 523-5 |) 22 | 521-1 50 07-40 || 52 | 523-3]) 53 | 472.9
535-5 || 53 | 493-1] 24 22 0 15-05 2521-0 3 | 531-1 55 08-21 |) 57 | 521-6]) 58 | 471-9
540-2 || 58 | 488-3 25 13 0 06-97 2 | 528.3 3 | 467-9
521-2 3 | 480-9) 25 3 O25 5-72 2 | 547-4 3 | 616-6 6) 04-98 7 | 534-6 8 | 464-9
516-3 8 | 477-8 18 17-49 || 19 | 542-2|| 20 | 615-6 10 04-10 | 12 | 538-4 || 13 | 465.2
515-6 || 13 | 468-9 21 17-19 | 22 | 536-4 || 23 | 614-4 | 15 05-32 || 17 | 535-9]| 18 | 465-6
520-5 || 18 | 477-9 25 19-48 || 27 | 536-3 || 28 | 614-0 || 20 06-71 || 22 | 529-5 || 23 | 466-5
523-6 || 23 | 474-0 30 17-98 || 32 | 535-7) 33 | 609-4 51 10-83 || 52 | 511-6} 53 | 480-9
516-7 || 28 | 474-5 49 21-03 || 50 | 546-3 || 51 | 607-7{ | 55 10-41 || 57 | 513-0}, 58 | 478.4
913-0 || 33 480-2 52 21-26 || 53 | 546-9 || 54 | 608-74 25 14 0) 09-82 2 | 520-0 3 | 479-3
511-4|| 38 | 483-2] 25 4 0 21-10 2 | 532-3 3 | 616-0 10 11-42}| 12 | 521-5}) 13 | 482-1
BIFILAR. k=0:000140. BaLance. k=0-:000010.
* See notes on the Aurora Borealis, after the Extra Observations of Magnetometers.
Bifilar vibrating 15 sc. div.
Bifilar vibrating 10 sc. div.
Bifilar vibrating 10 sc. div.
Feb. 254 3h 20m,
Feb. 254 115 12m,
Feb. 254 112 17m,
100 EXTRA OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 25—Marcu 9, 1845.
Gott. es Gott. Gott. J
Mean DECLINATION. a eiemery Cae Mean DECLINATION. re ae ee Mean DECLINATION,
Time Time. Time.
(cb, Jats Min. i ’ Min. | Se. Diy. || Min. | Mic, Diy. Gn he Min c @ Min. | Se. Div. || Min. | Mic. Div. Goh Min. P ia
25 14 | 15 | 25 11-51] 17 | 525-1] 18 | 483-5] 26 15 || 40 | 25 14-40]] 42 | 533-9] 43 | 510-5] 28 14 || 25 | 25 06-15
25 15 0 14-94 2b 22-7 3 | 483-6] 26 16 0) 12-62 2 | 534-5 3 | 522:3 35 05-6
10 16:19 || 12 | 519-4 || 13 | 487-5 31 11-98 || 32 | 532-0] 33 | 533-5 46 06-53
15 15-67 || 17 | 520-6|| 18 | 490-09 26 17 0 12.38 2 | 535-5 3 | 539-0 55
25 16 0 14-51 2 | 528-8 3 | 500-5 0
25 18 0 08-72 2 | 524-8 3) |) OQ Nee Toes 0 | 25 22-03 2 | 541-2 3 | 560-8 —
| 10 10-48 | 12 | 522-0] 13 | 530-7 13 18-27 || 14 | 530-2]| 15 | 562-1 0 | 25
15 11-84 17 | 521-8] 18 | 529-6] 27 3 0 | 17-81 2 | 535-0 3 | 567-2 5
25 19 0 17-93 2 | 534-5 3 | 509-7 10
15 15-81 || 17 | 541-1]| 18 | 502-0] 27 8 0 | 25 01-59 2 | 549-2 3 | Sifoel 15
30 14-71 | 32 | 540-0} 33 | 505-1 10 | 24 59-79|| 12 | 546-2}! 13 | 573-8 25
25 20 0 13-19 2 | 537-9 3 | 507-0 15 | 24 59-70|| 17 | 541-9|| 18 | 574-8 35
20 | 25 O1-22|| 22 | 536-8]! 23 | 578-7 50
PAG Al 0 | 25 17-46 2 | 511-6 3 | 563-8 30 | 24 58-76|| 32 | 530-7 || 33 | 580-5 0
12 | 518-7 || 13 | 573-0 35 56-10 || 37 | 533-1]] 38 | 578-5 ==
115) 14-46 || 17 | 524-5 || 18 | 573-9 40 | 54-59 || 42 | 535-1 |] 43 | 578-5 0 |.25
20 21-46 || 22 | 523-7]| 23 | 577-1 45 52-82 || 47 | 534-5 || 48 | 577-8 10
30 21-71 || 32 | 529-0 || 33 | 581-0 50 50-90 || 52 | 537-2|| 53 | 575-2 15
Zan 2, 0 22.89 2 | 523-0 3 | 582-3 55 49-91 || 57 | 543-1 || 58 | 574-4 0
PRS 3} 0 23-54 2 | 541-8 3 | 591-3] 277.9 0 52-40 2 | 544.3 3 | 574-4 10
10 23-48 || 12 | 522-9|| 13 | 594-9 5 55-77 7 | 541-7 8 | 574-2 20
30 25-06 | 32 | 532-0] 33 | 616-2 10 | 24 57-37 || 12 | 539-9|| 13 | 573. 0
35 21-53 || 37 | 522-0] 38 | 628-2 22 | 25 01-46] 23 | 535-1 || 24 | 570-0 —
40 11-24 | 42 | 527-8] 43 | 637-3 30 03-94 || 32 | 532-6]| 33 | 567-2 L 25
45 08-31 | 47 | 532-9|| 48 | 651-8 53) 04-42 || 56 | 523-2]! 57 | 565-7 10
50 06-97 || 52 | 532-4|| 53 | 660-9} 27 10 0 04-32 2) 526-5 3 | 565-6 15
55 03-47 || 57 | 543-7] 58 | 665-2 10 06-12 || 12 | 533-0} 13 | 563-8 0
26 4 0 03-34 2 | 546-6 3 | 668-4 20 07-44 || 22 | 533-2|| 23 | 562.2 —
10 06-06 || 12 | 549-2) 13 | 668-S# 27 11 0 10-25 2 | 531-4 3 | 560-8 0 | 25 09
25 13-49 | 27 | 541-8 || 28 | 651-7) 27 12 0 08-95 2 | 534-5 3 | 550-3 10
30 14-06 || 32 | 542-4]| 33 | 644-2 ae 13-52 || 34 | 529-71] 35 | 551-3 15
40 16-59 || 42 | 545-7 || 43 | 632-7] 27 13 0 14-13 2 | 529-0 3 | 543-8 20
50 17-67 | 52 | 540-2] 53 | 623-4] 27 14 0 19-48 2 | 524-1 3 | 502-4 25
26 5 0 17-33 2 | 539.9 3 | 618-6 10 16-45 || 12 | 526-6]| 13 | 494-6 30
25 16-15 || 27 | 537-0]|| 28 | 611-9 20 14-73 || 22 | 530-3 |} 23 | 495-0 0
26 6 0 14-71 2 | 536-1 3 | 603-5 30 13-52 || 32 | 529-9]) 33 | 499.3 —
27 15 0 11-41} 2 | 534-8 3 | 518-0 O | 2a
26 10 0 | 25 11-64 2 | 541-8 3 | 550-8 ——_ ——_-— | — 10
10 10-23 || 12 | 542-5} 13 | 548-8] 28 6 0 | 25 07-47 2 | 539-6 3 | 596-4 15
15 10-48 | 17 | 543-2]| 18 | 548-7 10 09-15 || 12 | 536-6 || 13 | 595-9 20
26 11 0 09-19 Pal B3aya}33) 3 | 554-3 30 12-11 || 32 | 526-6] 33 | 591-3 25
40 07-99 || 41 | 538-1 ]| 42 | 554-9] 28 7 0 12-95 2 | 542-4 3 | 582-0 30
52 13-39 | 53 | 536-0]) 54 | 544.2 35
BY) 13-56 || 57 | 530-1] 58 | 541-6] 28 10 0} 25 01-95 2 | 543-0 3 | 568-9 40
26 12 0 12-89 2 | 525.4 3 | 538-6 5 01-01 7 | 542-6 8 | 568-1 45
10 10-70 | 12 | 522-1]) 13 | 538-9 15 02-89 || 17 | 534-1 ]| 18 | 566-4 0
15 DES) Diioale2) is) | sa9e2 20 02-23 || 22 | 529-3|| 23 | 566-5 10
20 14-94] 22 | 535-6 || 23 | 536-0 25 01-92 || 27 | 527-3 15 8
25 16-92 || 27 | 536-5 || 28 | 530-3 30 02-37 || 32 | 526-5} 33 | 567-5 20 4
30 17-36 || 32 | 538-7 || 33 | 523-1 35 03-58 || 37 | 529-2|| 38 | 567-7 25 2
35 17-83 | 37 | 537-6|| 38 | 517-1 40 05-70 30 7
40 17-29 | 42 | 536-9] 43 | 512-6$ 28 11 0 09-40 2 | 531-2 3 | 566-5 35 1
ol 13-86 || 52 | 533-1 || 53 | 509-9 | 10 10-88 || 12 | 533-7)]/ 13 | 565-9 40 20-2
26 13 0 12-72 2 1) 533-2 By Pty -s: on 11-55 || 32 | 529-9} 33 | 568-2 45 0
20 09-93 | 22 | 536-3 || 23 | 520-5] 28 12 || Oo 11-99 2 534.4 3 | 565-3 50
26 14 0 11-42 2 | 529-4 3) | S33 aP2Sar3 0 10-94 2 | 529-4 3 | 561-8 0
26 15 0 18-47 2 | 530-2] 3 | 506-8 10 14-10 |} 12 | 526-6|| 13 | 559.7 10 74
6 16-93 | axaiilars 8 | 499-8} 28 14 0 05-60 2 | 533-0 3 | 504-2 15 -€
Tom 16-53 17 | 538-2|| 18 + 499.7 5 05-05 7 | 530-8 8 | 503-0 20 09-62
20 17-39 | 22 | 536-2]) 23 | 500-9 10 05-05 | 12 | 528-5 | 13 | 504-9 25 09-4¢
30 15-22 | 32 | 533-6]| 33 | 504-0 15 05-11 | 17 | 527-5 30 09.2
BiFILar. k=0-000140. BALANCE. k=0:000010.
* See notes on the Aurora Borealis, after the Extra Observations of Magnetometers.
Feb. 252 184 10™, The magnets evidently disturbed throughout the night, but within small limits.
March 42 105 15™. Instruments slightly disturbed.
ExtTrA OBSERVATIONS OF MAGNETOMETERS, FreBRUARY 28—Marcu 17, 1845.
IFILAR
rrected.
. | Se. Div.
522-5
524-5
526-1
526-5
| 528-0
540-1
552-5
558-1
551-8
549-2
546-8
537-7
536-1
541-3
546-6
543-7
540-9
541-4
539-9
540-6
543-4
539-5
539-1
541-1
540-6
539-6
536-9
| 535-3
j| 535-8
| 536-5
:
| 539-6
|) 536-6
539-3
541-4
542-1
541-5
540-4
539-5
537-7
536-2
533-6
538-3
544-3
552-5
555-9
557-1
553-4
549-1
544.8
542-2
538-3
1534.0
1533-3
|534.6
1535-2
|535-8
I
h 154 11%.
.
.
|
Min.
BALANCE
Corrected.
Mice. Div.
Brrinar. k=0-000140.
Instruments slightly disturbed.
MAG. AND MET. oss. 1845.
101
BIFILAR BALANCE ea Dr : BIFILAR BALANCE
DECLINATION, Corrected. Corrected. eee CN ao: Corrected. Corrected.
Min. ° ‘ Min. | Se. Div. || Miu. Mie. Div. ale Matt Min 2 Vv i Miu. yaa Diy. || Min. | Mic. Div,
35 | 25 09-44|| 37 | 534-9] 38 | 527-7] 14 7 0 | 25 04-55 2 | 528-8 3 | 604-3
40 09-35 || 42 | 534-5|/ 43 | 530-6 10 00-87 || 12 | 536-9]| 13 | 601-0
0 08-99 2 | 534-8 3 | 538-0 15 00-80 || 17 | 538-7 || 18 | 600-7
20 02-22 |) 21 | 540-1 || 22 | 600-0
0 | 25 18-63 2 | 527-6 3 | 551-81) 14 8 0 09-93 ||. 2 | 534-0 3 | 593-1
18 90-92 || 19 | 532-8]| 20 | 554-6] 14 ~9 0 07-04 2 | 532-3 3 | 581-5
40 90-50 || 42 | 530-9]! 43 | 557-4 10 06-86 || 11 | 532-41] 12 | 581-7
0 19-37 2 | 530-0 3 | 557-6] 14 10 0 02-08 2 | 642-8 3 | 556-7
12 04-07 || 14 | 546-0]] 15 | 555-0
0 | 25 09-69 2 | 538-9 3 | 565-2 20 05-58 || 22 | 540-8 ]| 23 | 553-6
10 10-09 || 12 | 540-5]) 13 | 564-9 30 07-17 || 32 | 537-9]| 33 | 952-5
0 11-98 2 | 539-3 3 | 561-49 14 11 0 10-67 2 | 539-8 3 | 544-5
10 08-65 | 12 | 537-2)| 13 | 543.1
0 | 95 07-57 2 | 536.2 3 | 573.9 20 07-17 || 22 ae 23 | 541-0
3 : = 30 07-04 || 32 | 538-4
10 09-15 || 12 | 537-6]) 13 | 574-7
14 12 0 06-66 7} ) RBYa 33.00 | 3 | 539-2
20 09-69 || 22 | 540-9] 23 | 570-6
‘ % 15 10-47 | 17 | 532-4]) 18 | 540-1
25 09-96 || 27 | 541-5]| 28 | 569.4
Spe 14 13 0 11-49 2) 3042 3 | 531-6
30 | ° 09-98] 32 | 542-9]) 33 | 567-8 = :
.f 14 14 0 10-16 2 | 530-4 Bh I Bair)
40 09-49 || 42 | 541-41] 43 | 566-6 3 et
Se 15 09-53 || 17 | 529-01 18 | 540-4
0 11-21 2 | 541-4 3 | 565-8 =
a 40 11-48 || 42 | 528-6]| 43 | 542.9
0 06-07 P| \pyae7/ 3 | 556-1 pa :
14 15 0 13-76 2-| 530-6 3 | 542-0
5 05-11 7 | 540-4. 8 | 554-6 5 os :
14 0 16-68 2 | 532-4 3 | 529-6
10 06-01 || 12 | 540-6} 13 | 554-8 pee
z 10 15-41 | 12 | 534-7|| 13 | 527-8
15 06-32 || 17 | 540-9] 18 | 554-8 4
z 20 14-92 || 22 | 534-5 ]| 23 | 529.4
25 07:98 || 27 | 540-1] 28 | 555-3 14.17 0 10-97 9 | 539-4 3 | 597.7
0 11-10 2 | 536-4 3 | 551-9 ;
— =| aaa 15 6|| 0} 25 05-02| 2 | 540-4) 3 | 577-9
0 | 25 13-25]| 2 | 545.2]. 3 | 536-9 10 02-79 || 12 | 544-1]] 13 | 579-2
38 08-99 || 39 | 540-3} 40 | 534-8 20 03-70 || 22 | 547-5 |] 23 | 582.7
0 08-45 2 | 543-6 3 | 535-3 35 06-32) 37 | 545-6 |] 38 | 588-3
26. 11-24 || 27 | 544-3) 28 | 536-2 45 07:78 || 47 | 542-0]] 48 | 592.0
0 11-14 2 | 543-6 3 |Pooo-ON Lor. 7 0 10-81 2 | 540-3 3 | 592-8
0 11-21 2 | 530-0 3 | 545-4 15 12:58} 17 | 544-0 || 18 | 588-2
10 12-58 || 12 | 524-0]] 13 | 547-5 50 12-53 | 52 | 5386-7]! 53 | 586-7
18 15-11] 19 | 527-1 15 8 0 12-04 2 | 542-9 3 | 583-1
20 12-93 || 22 | 523-2]! 23 | 546-9 | — —
25 13-76 || 27 | 521-7|| 28 | 546-3] 16 13 0 | 25 04-71 CA Oe ar! 3 | 482-0
30 15-36 || 32 | 520-6] 33 | 546-2 10 03-34 || 12 | 526-6]) 13 | 477.4
35 15-81 || 37 | 516-0]) 38 | 546-8 20 05-29 || 22 | 522-7 || 23 | 477-6
40 16-21 || 42 | 511-7|| 43 | 546-3 30 08-11 || 32 | 522-4]) 33 | 479-5
45 15-94 || 47 | 513-6] 48 | 545-5 40 10-65 || 42 | 524-2) 43 | 486-4
0 19-31 2 | 520-5 3 | 543-4 50 12:49 || 52 | 527-8] 53 | 488-2
10 19-91 || 12 | 523-0) 13 | 542-19 16 14 0 12-93 54 || Bibel 3 | 487-7
15 90:92 || 17 | 525-2) 18 | 539-3 15 15-39 || 17 | 529-4] 18 | 485-2
20 20-70 || 22 | 528-4 ]) 23 | 538-2 30 15-29 || 32 | 530-1]) 33 | 487-5
30 20-89 || 32 | 529-0) 33 | 535-3] 16 15 0 16-05 2 | 634-2 3 | 903-3
5 20-94 6 | 532-9 7 | 532-8 30 11-68 || 32 | 530-0} 33 | 507-1
15 21-66 || 17 | 535-2] 18 | 533-0] 16 16 0 08-21 DANO 20-3 3) i ailltya3}
25 19-14 || 27 | 537-5]) 28 | 532.3 10 09-42) 12 | 522-6]} 13 | 518-9
35 17-86 || 37 | 524-9] 38 | 535-5 20 11-03 || 22 | 521-6) 23 | 522-0
45 15-24 || 47 | 526-71} 48 | 537-0 30 13-22 || 32 | 520-7] 33 | 523-0
25 13-83 || 57 | 524-3 || 58 | 538-9 40 14-84|| 42 | 519-3 || 43 | 522-8)
0 13-52 2 | 526-3 DI | 098-0 50 14-80 || 52 | 522-71} 53 | 517-6
10 13-29 | 12 | 528-8] 12 | 537-5] 16 17 0 15-88 2 | 624.4 8) i oulsiall
20 14-10] 22 | 528-5] 23 | 537-7 30 13-07 | 32 | 511-0|| 33 | 506-6
32 16-35 || 34 | 529-3) 35 | 537-8) 16 18 0 14-50 25 a2-0 3 | 508-5
0 18-38 2 | 527-6 3 | 534-3 |} -——— _|——_ = oe _—_—_| —___—
0 18-60 DL |) 3 P407/ 30 | Oo0-O1 ye eng. 0 | 25 10-90 2 | 547-0 3 | 551-7
20 18-54 | 21 | 524-6] 22 | 541-9 15 11-52] 17 | 550-3 || 18 | 547-1
0 21-19 2 | sdo0-1 3) 541-1 30 12-65 || 32 | 543-7 || 33 | 541-1
BALANCE. k=0:000010.
h 134 15 and afterwards. Declination reading higher than its mean value; the magnet was watched, but no change of importance took place.
2c
102 EXTRA OBSERVATIONS OF MAGNETOMETERS, Marcu 17—24, 1845.
Gott. BIFILAR BALANCE Gott. BIFILAR BALANCE Gott. .
Mean DECLINATION. Gonnectoat Gonncerede Mean DECLINATION. Gosnectod: Gonmeeisae Mean DECLINATI
Time Time. Time, ™
Gh thy ||| inte Min. | Sc. Diy. || Min. |Mic.Div.J 4. h.||Min.}| ° / Min. | Se. Div. || Min. |Mic.Div.J d. hh. || Min. } 2 7
17 10 0 | 25 13-36 2 | 539-0 3 | 545-14 21 9 0 | 25 09-26 2 | 532:2 3 | 565-6} 23 15 0 | 25 045
17 11 0 07-13 2 | 543-7 3 | 539-4 10 15-72 || 12 | 553-2|| 13 | 536-3 5 05-§
10 08-21 |) 12 | 549-6] 13 | 535-2 15 15-67 || 17 | 547-0} 18 | 537-1 15 07.
15 09-19 || 17 | 552-9] 18 | 532-9 20 11-77 || 22 | 561-5 || 23 | 530-2] 23 16 0 04.
20 10-27 || 22 | 552-1] 23 | 531-1 25 18-38 || 28 | 555-7 || 29 | 522-1 10 02.5
35 09-79 || 36 | 545-5] 387 | 527-2 30 22-27 || 32 | 536-0] 33 | 521-0 15 04.
Lia2 0 11-79 2 | 541-3 3 | 521-9 35 18-20 || 37 | 528-5 || 38 | 522-9 20 03-
| == 40 09-56 || 42 | 541-2|) 43 | 516-8 25 02.
1S: 7 0 | 25 13-39 2 | 543-0 3 | 572-7 45 07-54 || 47 | 549-4 || 48 | 514-0 30 01
30 15-11|| 32 | 542-9] 33 | 571-3 50 09-69 || 42 | 549-7 || 53 | 511-9 35 Ol.
LSians 0 14-06 2 | 538-6 3 | 574.3 55 11-77 || 57 | 545-2}| 58 | 508-3 40 01
189) 0 11-71 2 | 542-7 3 | 570-7] 21 10 0 13-96 2 | 547-8 3 | 505-9 51 02-1]
18 10 0 03-37 2 | 558-2 3 | 534-4 15 11-48) 17 | 531-5} 18 | 506-54 23 17 0 05.
5 05-15 7 | 555-6 8 | 532.4 25 | 07-57 || 27 | 537-8 || 28 | 498-4 10 9.
* 10 06-70 | 12 | 548-9} 13 | 533-2 30 | 07-67 || 32 | 534-7 || 33 | 493-0 20 10
20 05-53 || 22 | 538-6] 23 | 531-4} 21 11 0 | 08-36 2 | 530-7 3 | 482-5 36 12.
25 02-96 || 27 | 546-7 || 28 | 528.3 15 07-34 || 17 | 528-2} 18 | 484.4 45 13
30 03-90 || 32 | 548-3 || 33 | 526.4 45 07-40 || 46 | 532-3] 47 | 496-1] 23 18 0 13.
35 04-64 || 37 | 548-3] 38 | 523-4) 21 12 0 10-78 2 | 531-6 3 | 495-9 10 10-
45 06-04 || 47 | 540-4} 48 | 521-2} 21 13 0 12-29 2 | 537-0 3 | 500-3 20 10
50 06-06 || 52 | 539-5] 53 | 521-2 10 15-31 || 12 | 536-6|| 13 | 498-0] 23 19 0 09.
LS 0 06-19 2| 5419 3 | 518-4 20 16-63 || 22 | 535-3) 23 | 495-1
15 05-47 || 17 | 540-2] 18 | 518-7 30 17-63 || 32 | 534-5] 33 | 493-2] 24 6 0 | 25 1
30 08-80 || 32 | 538-0] 33 | 522-4 40 16-15 || 42 | 534-5) 43 | 490-8
18 12 0 13-23 2 | 534-6 3 | 529-1] 21 14 0 15-49 2 | 533-8 3 | 494-2 15 | 25
eee ees | ee eee ——_|———_} 21 16 0 10-92 2 | 519-5 3 | 497-1 20 | 25
19 6 0 | 25 12:23 2 | 537-6 3 | 581-3 11 10-63 || 12 | 524-1] 13 | 488-7 25 | 24
25) 08-83 || 27 | 530-5 || 28 | 597-9 15 10-50 |} 17 | 527-4) 18 | 485-6 30 | 24 53
45 04-24 || 47 | 527-6} 48 | 606-1 35 09-19 || 37 | 531-3] 38 | 484.4 35 | 24 59
LORS 7 0 03-41 2 | 530-0 3 | 609-2] 21 17 0 06-90 2 | 536-4 3 | 492-5 40 | 25 Q3
19 8 0 09-79 2 | 526-5 3 | 607-8 20 | 06-59 || 22 | 542-5} 23 | 495-9 45 05
19 9 0 16-28 2 | 528-1 3 | 542-8] 21 18 0 07-27 2 | 541-4 3 | 506-4 50
| 9 06-84 7 | 518-8 8 | 546-1} 21 19 0 12-45 2 | 534-9 3 | 518-6 55
10 10-36 | 12 | 524-0} 13 | 551-1 15 12-78 || 17 | 533-0] 18 | 520-8] 24 7 0
15 06-06 || 17 | 532-9] 18 | 554-5 25 12-78 || 26 | 533-6 || 27 | 522.9 10
20 05-96 || 22 | 529-3 23 | 554-6] 21 20 0 14-03 2 | 533-1 3 | 525-4 15
25 05-58 || 27 | 528-1 || 28 | 554-9 || —_|\—_—_——__ || ——_ —||———|— 20
30 04-68 || 32 | 530-2]| 33 | 556-35 23 13 0 | 25 08-06 2 | 538-8 3 | 507-0 45
45 02-96 || 47 | 528-0 || 48 | 563-4 Al ia 06-74 || 16 | 524-6) 17 | 502-3 50
* 50 03-06 || 52 | 527-4] 53 | 565-6 18 | 520-4 55
19 10 0 06-51 PHS P-7S7( 3 | 570-1 19 07-60 || 22 | 513-8] 23 | 500-0] 24 8 0
- —|——— ———— — 24 | 507-3 ; 10
20 15 0 | 25 18-37 2 | 532-2 3 | 538-3 25 08-48 || 27 | 504-5 || 28 | 496-9 20
5 21-63 7 | 536-8 8 | 531-4 30 08-72 || 32 | 506-0} 33 | 487-4 30
10 22-50 || 12 | 541-0] 13 | 522-3 35 | 08-28 || 37 | 515-1 || 38 | 480-6 45
15 24-72} 17 | 540-8] 18 | 510-3 40 08-05 || 42 | 528-3} 43 | 472-7 55
20 24-99 || 22 | 538-3] 23 | 498-9 45 09-76 || 47 | 539-3 || 48 | 459-4] 24 9 0
| 25 24-28 || 27 | 538-6 || 28 | 486-8 50 13-25 || 52 | 541-4]) 53 | 440-2 32
|| 30 22-27 || 32 | 536-3 || 33 | 476-2 55 16-01 || 57 | 538-1] 58 | 421-99 24 10 0
35 19-93 || 37 | 535-9. 38 | 469-9] 23 14 0 17-53 2 | 535-3 3 | 406-5] 24 11 0
40 17-56 || 42 | 535-3 | 43 | 466-4 EPs 18-21 7 | 530-9 8 | 391-1 20
45 15-61 || 47 | 537-2|| 48 | 465-1 10 17-73 || 12 | 528-3] 13 | 381-7 25
50 13-96 || 52 | 539-7 || 53 | 467-2 15 17-37 || 17 | 523-9}, 18 | 375-1 31
595 15-01 ] 57 | 540-5] 58 | 469-3 20 16-21 || 22 | 521-9] 23 | 373-64 24 12 0
20 16 0 14-68 2 | 536-9) 3 | 471-2 25 14-77 || 27 | 522-6} 28 | 373-5} rf
21 11-21] 22 | 533-1 || 23 | 492.7 30 12-92 || 32 | 523-5 || 33 | 371-7 10
30 11-55 |] 32 | 534-6] 33 | 497-4 35 13-82 || 37 | 522-3] 38 | 370-9 15
ZO wy, 0 09-24 2 | 533-3 By | yl i7io's) 40 10-80 || 42 | 523-1} 43 | 376-9 20
10 10-33 || 12 | 533-5] .13 | 522-0 45 09-15 || 47 | 525-1} 48 | 381-7 25
35 09-15 || 36 | 534-6 || 37 | 528-6 50 06-8] || 52 | 528-3}! 53 | 387-2 30
20 18 0 10-67 2 | 532-8 3 | 539-2 Bp) 05-52 || 57 | 529-7} 58 | 397-0 35
BIFILAR. k=0:000140. BALANCE. k=0-000010.
* See notes on the Aurora Borealis, after the Extra Observations of Magnetometers.
IFILAR
orrected.
Sc. Div.
532-2
531-8
532-1
529-6
528-2
525-1
Si i EI |
™ Ww
527-4
524.7
519-8
516-7
519-1
508-6
506-5
514.0
522-5
532-5
537°3
540-8
538-8
| 537-2
Jy
Taw wNnwws
ND bk W™
540-4
551-9
544.9
545-4
554-5
570-3
574-0
557-5
548-2
551-1
552-3
548-1
524.3
526-1
528-5
536-2
535-5
534.0
532-6
535-3
536-9
534-7
529.2
530-6
532-5
534-4
533-5
535-8
535-5
534-4
530-4
536-7
537-8
2 | 541-6
7 | 545-9
B | 553-9
7 | 554-1
B | 544.2
7 | 539-8
m i)
oN ww
Oh bo SI bo hn Ww bh SI I BO OD ND DD ™! DD! BD! BD
ExtTRA OBSERVATIONS OF MAGNETOMETERS, Marcu 23—26, 1845.
BALANCE
Corrected.
Min.
8
18
Mic. Div.
407-0
419-3
433-3
461-9
465-9
466-3
459-7
456-7
456-3
453-9
457-1
461-8
466-2
463:3
465-4
468:8
475-6
480-8
489-8
521-8
644-8
679-2
699-8
713-7
692.3
668-0
654-1
653-5
648-1
638-8
632-7
631-3
636-9
638-1
636-0
615-9
612-5
611-5
611-2
606-4
598-0
594-5
600-8
602-6
602-6
591-7
582-0
558-4
557-1
559-0
561-8
544-2
524.7
506-8
482.4
466-4
458-5
452-8
451-1
Gott.
Mean
Time.
due
24 12
24 13
DECLINATION.
40 | 25 08-53
45 05-83
50 04-68
55 05-18
0 05-96
15 09-87
26 08-73
30 07-62
35 | 25 02-64
40 | 24 56-94
45 52.94
50 54-16
55 54-35
0 53-72
6 53-20
10 52-60
20 52-60
25 52-84
35 54-08
45 | 24 56-75
56 | 25 00-33
0 04-14
5 07-32
10 08-08
15 08-68
20 09-39
30 11-10
45 07-87
0 | 25 00-71
6 | 24 59-36
11 | 25 01-41
15 02-84
25 04-73
30 03-30
0 05-11
25 09-39
45 09-22
0 10-03
0 09-98
25 11-57
0 10-53
0 | 25 15-12
36 04-51
40 06-19
45 07-49
50 07-79
0 10-30
22 12:25
0 13-66
0 | 25 04-89
10 04-89
20 06-79
BIFILAR
Corrected.
Min. | Se. Diy.
42 | 538-3
47 | 541-2
52 | 546-0
57 | 546-5
2 | 543-5
17 | 525-5
27 | 510-5
29 | 506-5
31 | 501-9
32 | 499-3
34 | 496-3
36 | 496-8
38 | 499-3
41 | 502-3
44 | 514-3
47 | 516-6
52 | 516-5
57 | 511-0
2 | 512-6
7 | 508-7
12 | 509-0
22 | 504-8
26 | 506-6
37 | 503-3
47 | 507-5
57 | 510-2
2 | 505-8
7 | 503-7
12 | 508-7
17 | 511-7
22 | 514:3
32 | 515-7
BALANCE
Corrected.
in. | Mic. Div.
449-6
449-0
446-1
442-0
439-8
439-8
438-0
437-1
435-9
433-0
431-6
430-5
427-6
430-0
427-2
426-7
429-6
431-1
431-2
429-6
425-8
418-2
407-5
396-1
390-0
386-2
379-9
373-4
352-7
358-8
360-6
360-8
358-8
362-6
392-4
421-2
457-2
471-9
483-7
521-9
533-7
543-9
601-9
621-6
622-0
620-4
618-7
615-6
603-6
583-5
498-9
499-2
504-5
Gott.
Mean
Time.
Te,
25 13
25 14
25 15
26 10
26 11
26 12
26 13
*
26 14
DECLINATION.
Min. 2 4
30 | 25 08-45
40 09-12
50 07-29
0 04-86
10 03-30
20 04-48
30 06-77
0 11-91
10 13-66
20 13-47
0 08-29
30 07-87
0 10-58
(O) |) Bay UAH are
10 07:47
15 06-84
20 08-16
40 10-70
10) 08-11
10 01-72
13 00-40
20 02-69 |
25 06-76
30 08-48
0 | 25 05-06
50 | 24 58-15
55 | 24 59-01
0 | 25 04-19
5 08-93
10 13-52
Ns) 15-94
20 13-66
25 09-12
30 10-41
40 10-51
50 10-95
0 12-02
45 11-88
0 16-93
10 15-58
20 16:77
30 11-24
oO) 06-90
40 05-27
45 05-36
50 05-94
0 08-82
15 07:74
25 04:48
35 05-38
45 06-50
BY) 08-38
0 09-06
10 09-35
20 09-12
30 09-82
0 09-84
10 08-31
30 10-09
0 11-64
BIFILAR
Corrected.
103
BALANCE
Corrected.
Min. | Se. Diy.
32 | 536-5
42 | 532-4
52 | 532-4
2 | 532-4
U2 S337)
22 | 530-6
32 | 528-8
2 | 527-1
12 | 528-9
22 | 534-7
2 | 531-2
32 | 530-4
2 | 532-0
2 | 542-1
12 | 545-1
17 | 553-0
22 | 554.5
41 | 542-2
2 | 536-7
12 | 543.2
17 | 553-4
22 | 556-0
27 | 558-2
32 | 551-5
2 | 544.9
52 | 543-1
o7 | 549-4
2 | 553-2
7 | 945-8
12 | 536.2
17 | 520-7
22 | 518-0
27 | 529.9
32 | 531-4
42 | 535.3
52 | 534-2
2 | 534.9
47 | 540.4
2 927-9
12 | 543-1
22 | 530-7
32 | 527-0
37 | 536-0
42 | 541-0
47 | 542-7
52 | 544-3
2 | 540-7
17 | 524-6
27 | 531-9
37 | 530-8
47 | 536-1
57 | 540-7
2 | 544-1
12 | 542-3
22 | 540-8
32 | 539-8
2 | 530-1
12 | 530-3
32 | 527-2
2 | 516-3 |
Min.
33
53
Mie. Div,
908-3
508-5
508-1
506-9
506-6
004-6
504-7
504-6
517-6
526-1
534-9
594-4
599-1
602-9
606-3
620-4
626-0
627-7
625-7
624-9
623-0
620-9
618-5
560-4
504:1
549-8
548-7
Birinar. k=0:000140.
BALANCE. k=0:000010.
* See notes on the Aurora Borealis, a/ter the Extra Observations of Magnetometers.
104 EXTRA OBSERVATIONS OF MAGNETOMETERS, Maron 25—Aprit 13, 1845.
Gott. Gott. Gott. a
Mean DECLINATION. Gee a wer Mean DECLINATION, See, o eee Mean DECLINA’ rIC
Time. Time Time.
d. h. || Min. pe a Min. | Sc. Div. || Min. | Mic.Div.§ 4d. h. Min. 4 Min. | Sc. Div. |} Min de) he Min. o
26 14*/ 10 | 25 10-87] 12 | 516-8|| 13 | 502-5] 28 9 || 12) 25 08-68] 3 | 540-4] 4 13 13
30 13-84 || 32 | 524-5] 33 | 488-8 10 05-82] 12 | 540-8] 13 30 | 24 31-4
35 16-41 | 37 | 521-2|| 38 | 483-5 15 05-35 || 17 | 544-2]| 18 31 31.1
40 18-05 | 42 | 519-0|| 43 | 474-6 31 | 25 04.44]| 32 | 541-0] 33 35 8.9
45 20:05 | 47 | 517-0] 48 | 468-1 57 | 24 57-51 36
50 21-59 || 52 | 513-8] 53 | 461-3] 28 10 || 0 56-27 || 2| 541-6] 3
55 22-20 || 57 | 510-5 || 58 | 453-3 5 54.28] 7 | 543-1] 8 40
26 15 | O 20-87] 2 | 513-0|| 3 | 447-7 10 54-55 || 12 | 543-4] 13 41
10 18-87 || 12 | 518-2]) 13 | 440-5 15 55-78 | 17 | 540-9] 18
15 19-28 || 17 | 520-3|| 18 | 441-2 20 57-02 || 22 | 538-8 45
20 18-67 || 22 | 526-9|] 23 | 445-8 30 | 24 57-68|| 32 | 536-2] 33 46
25 18-48 || 27 | 531-4]|| 28 | 450-0 40 | 25 00-80|| 42 | 529-1] 43
30 16-95 | 32 | 534-3 || 33 | 453-7 50 04-12]| 52 | 521-41] 53 50
45 12.82 || 47 | 535-5 || 48 | 465-8] 28 11 || 0 04-91|| 2] 525-6] 3 51
26 16 || O 09-22|| 2 | 537-5] 3 | 477-8 10 06-97 || 12 | 528-2]] 13
10 08-25 || 12 | 536-5]) 13 | 481-8 20 08-14 || 22 | 527-3 || 23 55
30 04-44 || 32 | 538-1] 33 | 490-4 30 07-81 || 32 | 532-0] 33 56
35 04-44 45 11-51|| 47 | 531-9]] 48
2617 | 0 08-01] 2] 530-0] 3 | 513-0] 28 12 || 0 10-13|| 2 | 533-7] 3 13 14 |} 0 | 24
15 07:22 | 17 | 529-1}, 18 | 515-0] -———-_|-__ aes bl | 95
55 14-77 || 57 | 526-4]| 58 | 531-8] 29 10.|| 0 | 25 05-69|| 2 | 539-3] 3 5 | 24
26 18 || 0 14:92] 2 524.1) 3 | 532-9 10 03-37 || 12 | 536-7] 13 10
10 13-59 | 12 | 522-8]| 13 | 565-1 20 00-47 || 22 | 541-5 || 23
26.19 lo O lw 11-62] 210536-3 ) 3 | 534-3 30 00-74 || 32 | 538-0] 33 15
40 01-16 || 42 | 537-5|| 43 16
27 5 || 0| 25 15-18] 2 | 518-8] 3 | 600-4 50 03-04|| 52 | 533-2] 53 20
10 10-27 | 12 | 532-6] 13 | 603-1] 29 11 || O 03-90|| 2] 530-7] 3 21
21 11-41 | 22 | 538-4) 23 | 609-1 * 15 08-82 || 17 | 531-2] 18
30 10-77 | 32 | 546-1 || 33 | 602-2 25 08-52 || 27 | 529-8] 28 25
40 13-00 || 42 | 551-3|} 43 | 597-0 35 06-39 || 37 | 537-6|| 38
50 14-03 | 52 | 548-9|| 53 | 597-6 50 06-50 || 52 | 536-5 || 53 30
27 6/1 O 13-05 || 2 | 539-6] 3 | 605-5] 29 12 || 0 07-85 || 2] 533-7] 3 31
7 7 He O 12:58] 2 | 542-3] 3 | 611-5 | a aes
42 09-53 || 43 | 523-6]| 44 | 616-4] 3 9] O| 25 06-59] 2] 539-0] 3 35
45 05:79 || 47 | 529-4|| 48 | 613-9 15 10-20 || 17 | 529-8 || 18 36
50 04-71 || 52 | 538-9] 53 | 610-7 25 07-51 || 27 | 537-1] 28
55 07-05 || 57 | 540-9|| 58 | 607-2 30 08-31 || 32 | 537-9] 33 40
27 8] O 06-03 || 2 | 540-3]) 3.| 603-5 45 08-08 || 47 | 536-0 48 41
5 04:98] 7 | 536-9] 8 | 603-7] 3 10] 0 06-43 || 2 | 538-3] 3
10 | 25 00-57 || 12 | 536-6|) 13 | 599-0 10 06-03 || 12 | 538-4] 13 45
15 | 24 58-47] 17 | 539-2] 18 | 596-7] 3.11 || O 09-93 || 2 | 537-7] 3 46
90) | 24055658 |) 9901 555-8 23 | 584.5 ee —s
24 | 561-4 12 0O|| O| 25 14-35]) 2] 543-2] 3 50
25 | 24 59-36 10 15-74|| 12 | 544-6] 13 51
26 | 25 01-75|| 27 | 569-2] 28 | 574-21 12 1 || O 18-45 || 2] 529-0] 3
29 | 574-1 = — : 55
30 03-57 || 32 | 577-2|| 33 | 560-4] 13 11 || 25 | 24 53-88] 26 | 541-6] 27 56
35 09-29 || 37 | 569-7|| 38 | 552-6 *! 30 48-56 || 31 | 545-8 || 32
40 14-33 | 42 | 547-3]| 43 | 547-3 45 43-52|| 47 | 579-6|| 48 13 15 | Oo
44 | 539-0 51 | 24 45-74] 52 | 588.3) 53 5
45 13-37 || 47 | 534-0|| 48 | 542.4113 12 | O| 25 01-54]) 2] 563-6] 3
| 50 10-50 || 52 | 534-4|| 53 | 536-8] 13 13 | 3 | 24 52-40]) 4] 453-0] 5
56 09-32|| 57 | 531-7|| 58 | 532-0 *! 10 43-42|| 12 | 482.5] 13 10
27 9/1 O 09-29] 2 | 527-4] 3 | 531-1 15 34-74 is
10 02-73 | 12 | 528-0] 13 | 532-0 16 33-29 || 17 | 464-7 || 18
15 00-74|| 17 | 538-0]/ 18 | 530-5 18 | 438-9 15
20 03-37 19 32-55 16 | 24
47 08-05 || 48 | 535-0] 49 | 541-8 20 32-86 || 22 | 396-4 23 20 | 25
27 10 | O 08-79 || 2 | 533-3|| 3 | 546-6 24 | 371-9
10 08-05] 12 | 533-2] 13 | 548.7 25 29-56
Diaibs 4 |le0 09-67|| 2 | 530-8|| 3 | 537-1 26 26-45 || 27 | 346-7 || 28 25
BIFILAR. k=0:000140. BALANCE. k=0:000010.
* See notes on the Aurora Borealis after the Extra Observations of Magnetometers.
EXTRA OBSERVATIONS OF MAGNETOMETERS, APRIL 13—18, 1845. 105
FILAR BaLaNCE See BIFILAR BALANCE Gott. BIFILAR BALANCE
-rected. Corrected. Mean DECLINATION. Corrected. Corrected. Mean DECLINATION, Corrected. Corrected.
Time. Time.
| Se. Diy. |} Min. |Mic. Div.j 4. h. Min. e. 4 Min. | Se. Div. |} Min. | Mic. Div. d. h. |} Min. 2 y Min. | Se. Div. || Min. | Mic. Div,
363-4 5) 1155 .|| 29 | 591-3 114 6 | 20 |.25 11-68]) 22 | 549-3]| 23 | 621-1
405-8 || 33 83-0 * 30 | 24 53-17]|| 32 | 559-3 | 33 | 267-6 30 09-79 || 32 | 550-0|| 33 | 622.7
391-7 34 | 539-0 45 07-81 || 47 | 535-8 || 48 | 624.0
35 48-36 || 37 | 519-9]| 38 | 251-9 | 5d 04-12 || 57 | 541-0|| 58 | 630-4
| 419-7 || 38 | 155-7 39 | 525-0 114 7 0 | 25 00-57) 2 |.543-8|| 3 | 633-7
430-9 40 45-04 10 | 24 57-04] 12 | 555-9} 13 | 624.3
41 45-20 || 42 | 525-7 || 43 | 266-0] 15 | 24 59-36]| 17 | 564-6] 18 | 618-8
397-0 || 43 | 213-6 44 | 516.4 25 | 25 03-48 || 27 | 556-0 |) 28 | 612-5
400-2 45 43-89 || 473] 505-9 || 483) 280-8 50 07-81 || 52 | 536-8 || 53 | 599-1
50 44-19 | 52 | 508-9] 53 | 299-0] 14 8 0 06-74|| 2 | 536-7 3 | 593-3
414-4|| 48 | 224.5 54 | 515.4 35 10-06 || 37 | 533-4]! 38 | 576-9
| | 422.9 30) 45-07 || 57 | 521-5] 58 | 317-4] 14 9 0 11-64 Dales 3 | 570-8
59 | 525.2 14 11 | O 12-36] 2 | 530-3] 3 | 512-1
D 432-0 || 53 | 224-8} 13 16 0 47.19|| 2 | 528-0] 3 | 288-6 30 12-78 || 32 | 529-0|| 33 | 501-7
5 | 414-5 =) 49-57 || 7 | 526-1 8 | 369-54 14 12 0 16-43 Des oil 3 | 470-5
j 10 50-18} 12 | 519-8 |) 13 | 392-7 11 15-56 || 12 | 531-2] 13 | 469-8
5 406-9 || 58 | 185-5 15 | 24 57-24) 17 | 517-6] 18 | 403-9 20 14-40 || 22 | 530-2) 23 | 471-0
§ | 426-6 20 | 25 00-20) 22 | 519-6|| 23 | 412-6 30 12-38 || 32 | 530-9]| 33 | 475-1
427-5 30 02-32 || 32 | 518-2] 33 | 434-24 14 13 0 12-55 2 | 535-2]) 3 | 483-5
437-9|| 3 | 216-0 40 02-66 || 42 | 526-1 || 43 | 443-0 —||_|— -——|- =
453-2} 8 | 239-5 45 08-36 || 47 | 514-9} 48 | 441-9] 15 9 0 | 25 02-99 2 | 549-9|) 3 | 540.2
1 | 482-8} 13 | 220-8 50 07-78 || 52 | 509-2] 53 | 441-4 25« 06-66 || 27 | 543-6)| 28 | 535.3
1 487-3 By iliz/ 0 | 25 06-46) 2 | 524-5 3 | 448-2] 15 10 0) 07-57 2 | 539-:9|| 3 | 532-9
10 | 24 58-42|| 12 | 525-3] 13 | 455-0 a eee ee eine 3
| | 478-3 || 18 | 184-0 14 | 530-8 18 8 0 | 25 08-32)| 21] 543-9] 3 | 593-6
| 475-2 15 | 25 00-80} 17 | 525-3 || 18 | 457-74 16 04-68 || 17 | 536-3 || 18 | 608-0
2 475-5 || 23 | 181-5 22 | 534-21) 23 | 459-1 20 03-84 || 22 | 535-6] 23 | 611-2
J | 484-0 25 | 24 59-01 |) 27 | 538-8] 28 | 464.4 25 05-15 || 27 | 540-4}| 28 | 610-9
b | 484-6) 28 | 162-5 35 | 25 04-10] 37 | 535-3] 38 | 476-3 30 04-69 || 32 | 548-9 || 33 | 604-1
476-6 45 02:96 || 47 | 540-11! 48 | 487-1 35 07-81 || 37 | 547-3) 38 | 594-9
55 03:09 | 57 | 533-4) 58 | 493-3 40 09-84 || 42 | 541-8] 43 | 583-3
469-3 || 33 | 113-4} 13 18 0 02:99|| 2 | 537-0] 3 | 499-9 45 08-95 || 47 | 539-1 || 48 | 579-6
460-1 10 05-09 || 12 | 536-8] 13 | 506-5 55 05-63 || 57 | 530-6] 58 | 577-3
20 07-78 || 22 | 532-0}| 23 | 511-0} 18 9 0 03-50 Zalooiler likmio: |lmaveo
455-4 || 38 83:04 13 19 0 07-38 || 2 | 531-0] 3 | 518-5 5 01-93 7 | 5382-2) 8 | 570-7
455-6 15 05-00 | 17 | 530-0} 18 | 517-1 10 | 25 00-38) 12 | 535-4|| 13 | 567-0
13 20 0) 03-23 || 2 | 539-8 3 | 509-6 15 | 24 59:32) 17 | 537-5 || 18 | 563-1
445-0|| 43 64-4 10 09-35 || 12 | 532-0] 13 | 514.6 20 | 25 00-10] 22 | 537-4 || 23 | 559-0
453-2 20 08-31 || 22 | 533-5 |) 23 | 519.4 Ba) 01-68 || 37 | 531-0|| 38 | 549-6
L3H 0 06-59 PAN yer) Baleaaz 40 02-35 || 42 | 529.5 || 43 | 549-6
433-9 || 48 |— 0-8 45 02-25 || 47 | 529.2|| 48 | 549.4
445-9 14 °2 0 | 25 20-69 2 | 517-61) 3 | 560-8 55 01-68 || 57 | 533-1] 58 | 548-1
30 20-29 || 32 | 529-0} 33 | 564-9) 18 10 0 01-59 |) 2 | 533-1 3 | 546-6
434-3 || 53 |—27-4) 14 3 0 20-50 7) |) BS spl 3 | 569-1 15 03-90 || 17 | 530-8} 18 | 550-3
408-7 14 4 0 14:50 || 2 | 538-6] 3 | 650-64 18 11 0 08-80 || 2 | 538-0] 3 | 550-6
10 08-99 || 12 | 556-3! 13 | 667-24 18 13 0 10-16) 2 | 539-7) 3 | 539-1
| 382-2] 58 |— 2.4 15 03-20|| 17 | 571-5]| 18 | 669-8] 10 18-38 || 12 | 542-7|| 13 | 527-8
310-2 20 05-79 || 22 | 581-2]) 23 | 667-7 15 15-98 || 17 | 546-5 || 18 | 511-7
291-5)) 3 |— 4-5 25 10-83 || 27 | 569-4 || 28 | 665-6 21 12-29 || 22 | 550-4 || 23 | 497-6
318-8 30 15-71 || 32 | 546-6 || 33 | 654.7 25 10-11 || 27 | 552-1 || 28 | 489.8
346-8 || 8 |— 20-5 35 17-02 || 37 | 544-7) 38 | 643-2 30 08-79 || 32 | 553-0 || 33 | 482-5
386-9 40 17-71 || 42 | 539-6 |) 43 | 633-5 ain 09-03 || 37 | 549-1 || 38 | 478-5
45 17-80 || 47 | 537-5 || 48 | 625.4 40 08-92 || 42 | 544-2|| 43 | 476-4
367-7 || 13 19-4 50 17-80 || 52 | 538-7]| 53 | 617-4 45 08-12 || 47 | 538-6]| 48 | 476-1
369-2 14 5 0 16-87 || 2 | 541-8] 3 | 603-5 50 07-15 || 52 | 536-4 3 | 475-6
10 16-80 || 12 | 538-2]) 13 | 600-44 18 14 0 07-89 || 2 | 536-2 3h \P abeerlo ri
363-5 || 18 | *33-7 40 18-23 || 42 | 562-8 || 43 | 587-3 30 03-16 || 32 | 535-5}| 33 | 476-0
393-6 50 18-20 || 52 | 556-2) 53 | 598-6] 18 15 0 00-94 Qe \vo25-1 3 | 482-0
458-8 || 23 | 146-2 55 14-91 || 57 | 546-1] 58 | 610-0 10 00-91 || 12 | 524-0}} 13 | 487-7
469-2 14 6 0 11-59 ||} 2 | 543-5}) 3 | 619-8 20 01-61 || 22 | 522.4)| 23 | 492-9
586-0 |} 28 | 255-7 10 11-30 || 12 | 555-9 || 13 | 618-6 30 02-05 || 32 | 524-1|| 33 | 496-8
t BIFILAR. k=0-:000140. BALANCE. k=0-:000010.
| * See notes on the Aurora Borealis, after the Extra Observations of Magnetometers.
| April 134 145 57™ 30s,
April 134 15 Om,
The horizontal component diminished rapidly, and the bifilar scale went out of the field of the reading telescope.
The arms of the bifilar torsion circle were turned through 1° 12’; they were turned at 15» 46™ to within 9/5 of their
jriginal position, and at 21 30™ to their original position: all the observations made between 15" 0™ and 21» 30™ have been corrected to the
See Introduction, p. xxxii.
ormal reading of the torsion circle.
| MAG. AND MET. oss. 1845.
2D
106 ExTRA OBSERVATIONS OF MAGNETOMETERS, APRIL 18—May 18, 1845.
eat DECLINATION Pee eae ie DECLINATION ees ae ua D AT }
5 : Corrected. Corrected. z : Corrected. Corrected. scr ECLINATIC
Time. Time. Time.
ids) ih. Min. 2 , Min. | Se. Div. || Min. | Mie. Diy. as "hs Min. o s Min. | Se. Div. || Min. | Mic. Div.
18 16 0 | 25 08-41 2 | 521-3 3 | 500-7] 27 14 || 30 | 24 59-19}} 32 | 536-8|| 33 | 459.4
18 17 0 08-05 2 | 536-5 3 | 485-3 45 | 25 01-07 || 47 | 543-5} 48 | 474-9
30 05-32 || 32 | 534-3 || 33 25 01-01 2 | 535-4 3 | 483-4
18 18 0 05-60 2 | 534-1 3 25 02-55 || 32 | 527-2} 33 | 488-9
24 57-53 2 | 529-0 3 | 465-8
19 5 0 | 25 16-28 2 | 570-1 3) 25 02-42|| 12 | 526-8] 13 | 473-5
TN 573-4 8 00-58 || 22 | 523-1 || 23 | 469-0
22 | 572-4 || 23 01-88 || 32 | 508-9] 33 | 443-1
25 15-54 || 27 | 554-2 28 03-54 || 37 | 495-5 || 38 | 430-0
30 15-51 || 82 | 547-1]| 33 03-87 || 42 | 484-4] 43 | 416-3
45 15:32|| 47 | 540-7 || 48 17-76 || 47 | 461-5 | 48 | 346-0
19 6 0 12-72 2 | 547-6 3 23-41 || 52 | 509-4 || 53 | 327-0
30 09-42 || 32 | 551-0 ]] 33 25-09 || 57 | 507-2]| 58 | 292-5
19 7 0 11-51 2 | 549-0 3 21-32 2 | 487-6 3 | Babs
19 9 0 01-11 2 | 538-4 3 19-24 7 | 504-5 8 | 215-7
10 09-35 || 12 | 524-5 || 13 16-21}; 12 | 500-5 || 13 | 214-6
15 08-97 || 17 | 528-7 || 18 13:39 || 17 | 502-0} 18 | 232-1
25 09-76 || 27 | 534-0 }| 28 13-16 || 22 | 517-4] 23 | 238-4 |
30 10-60 || 32 | 534-0]| 33 10-40 || 27 | 522-2|| 28 | 238-7] 30 16
19 10 0 07-82 2) 534-5 3 09-37 || 32 | 524-6]} 33 | 243-9
— || ——}] —_—_—_——_}; ——_| —_____ || ——_ 07-34 || 37 | 529-7 || 38 | 254-0
20 13 0 | 25 15-17 2 | 519-6 Bi 08-92 || 42 | 521-6]) 43 | 279-1
5 13:70 7 | 523-7 8 07-02 || 47 | 523-3 || 48 | 302-2
HOE PLS SS NAN 529-74 06-61 || 52 | 524-6 || 53 | 328-7
ie: 09-79 || 17 | 529.6) 18 05-06 || 57 | 526-3 || 58 | 347-5
25 07-54 || 27 | 536-4 || 28 05-49 2 | 524-8 3 | 359-2)*14 12
30 07-13 || 32 | 537-0|| 33 03-87 || 12 | 525-7] 13 | 387-8
52 05-29 || 53 | 533-6 || 54 03-88 || 37 | 526-2]| 38 | 443-1
20 14 0 04-32 2 | 530-5 3 02-50 2 | 523-6 3 | 476-3
335) 05:86 || 37 | 527-9]| 38 04-19 Dy lPo28>1 3 | 504-2
20 15 0 08-75 2 | 530-5 3 04-51 || 12 | 522-2}| 13 | 509-9
20 18 0 13-54 2 | 524.4 3 04-79 2 | 520-4 3 | 513-1
16 14-13 || 17 | 529-3 || 18 09-93 2 | 510-7 3 | 514-4
20 19 8 08-05 9 | 530-2); 10 12-62 |} 12 | 509-5) 13 | 517-3
——— — 13-88 2 | 509-1 3 | 518-5
Pda 4 OO) 260 24-1/9 2 | 524-8 3 — —_——
42 23.54 || 43 | 532-8 || 44 25 03-54 6 | 552-8 7 | 483-7
2ouee 0 24-80 2 | 536-6 3 07-31 || 17 | 544-6|| 18 | 482-8
10-09 || 32 | 537-2]) 33 | 483-6
25 11 0 | 25 10-16 Pg | Says)p°6) | 3 07-76 2 | 538-1 3 | 483-0
15 11-77 || 17 | 548-8 || 18 01-81 || 27 | 534-8 || 28 | 467-5
35 11-07 || 37 | 543-51) 38 00-80 || 32 | 534-6) 33 | 460-1
25 12 (0) 09-62 2-| 536.4 3 01-01 || 42 | 527-9} 43 | 449-1
25 00-10|| 52 | 522-4] 53 | 430-0
24 57-35), 2 | 518-1 3 | 409-1
56:00 || 7 | 518-2] 8 | 399-8
27 13 O | 24 59-73]| 2 | 529-5 3
10 | 25 03-16}| 12 | 534-7 || 13
15 04-21} 17 | 524-6]| 18 56-30 || 12 | 514-0] 13 | 384-8 D
20 03-70 || 22 | 528-0]| 23 24 57-34 || 17 | 512-7) 18 | 370-7 f
25 05-09 || 27 | 527-9|| 28 25 02-99 || 22 | 520-2] 23 | 365-8 1
30 04-82 || 32 | 534-0]} 33 07-37 || 27 | 520-1] 28 | 330-6 q
35 04-21 || 37 | 534-4 ]| 38 07-25 || 32 | 516-0] 33 | 335-5 }.
06-16 || 37 | 520-0} 38 | 303-9
03-75 || 42 | 524-5 3 | 294-8
25 01-76 || 47 | 528-2) 48 | 282-9
40 02-40 || 42 | 534-6] 43
45 | 25 00-87 |) 47 | 536-91] 48
50 | 24 59-53 |] 52 | 537-6|| 53
essooewwros
|
55 | 25 00-00 || 57 | 535-1|| 58 24 59-03 || 52 | 528-11} 53 | 261-8 is
27 14 0 | 24 59:37|| 21] 545.4|| 3 58-63 || 57 | 534-5 || 58 | 255-4 7:
5 | 25 01-68|| 7 | 544-0]) 8 56:90) 2 | 533-2)|- 3 | 255-5 03.7
10 04-81 |] 12 | 538-9]] 13 56-70 || 7 | 536-6] 8 | 255-9 034
15 00-64 || 17 | 541-7] 18 |. 55-65 || 12 | 527-2] 13 | 258-8 00.
OL
20 01-68 || 22 | 540-5 }] 23 53-92 || 17 | 522-0} 18 | 271-3
25 00-001 27 | 534-7 || 28 51-27 || 22 | 517-1 || 23 | 286-
BIFILAR. h=0:000140. BALANCE. k=0:000010.
=
* May 144 125,
April 254, Instruments evidently slightly disturbed throughout the evening.
May 162 5» 25m, Clock put right ; error previously — 28%.
ExTRA OBSERVATIONS OF MAGNETOMETERS, APRIL 30—JuLy 24, 1845. 107
Gott. BIFILAR BALANCE Gott, BIFILAR BALANCE
Leia teceeted. Mean BECIENATION, Corrected. Corrected. Mean DECLINATION. Corrected. Cornsoreed,
Time. Time.
.|Mie.Div.] a. ob. |tMin| © ¢ Min. | Se. Div. || Min. | Mic. Div] a. oh. || Min.| ° / Min. | Sc. Diy. |[Min. |Mic. Diy.
292-91 18 14 || 35 | 25 03-67]| 37 | 530-0] 38 | 385-91 4 12 || 10 | 25 06-73]) 12 | 541-1] 13 | 473-1
295-2 45 03-02 || 47 | 531-9|| 48 | 398-0} 20 08-28 || 22 | 541-6 || 23 | 472-8
291-6} 18 15 0 09-32 || 2 | 533-4|| 3 | 403-5] 40 10-20|| 42 | 542-8 || 43 | 470-2
288-5 15 17-60 || 17 | 537-9|| 18 | 395-5] 4 13 0 09-46 || 2 | 541-1 3 | 469.7
280-9 25 17-94 || 27 | 542-1]] 28 | 378-3] —||———| || —||———
275-6 35 17-60 || 37 | 546-9|| 38 | 367-9] 7 12 0 | 25 11-14]| 2 | 546-0]| 3 | 454-5
266-6 45 17:02 || 47 | 538-6] 48 | 364-2 10 13-32 || 12 | 546-0]) 13 | 450-7
256-1} 18 16 0 20-62 |) 2 | 508-3)| 3 | 363-7} 20 12-78 || 22 | 547-5 || 23 | 442-5
228-8 10 25-06 || 12 | 502-6 ]) 13 | 351-2 35 14-06 || 37 | 548-0 || 38 | 432.7
215-9 20 27:75 || 22 | 506-0 ]} 23 | 319-6} 40 14:85 || 42 | 548-1 |) 43 | 428-8
194-5 25 23-19 || 27 | 513-7 || 28 | 303-8] 45 15-78 || 47 | 544-4 || 48 | 425.7
185-3 30 18-61 || 32 | 514-1]| 33 | 287-9} 50 16-41 || 52 | 542-7 ]| 53 | 426-2
167-4 35 13-27 || 37 | 520-4) 38 | 287-6] 55 17-53 || 57 | 540-9 |) 58 | 417-4
175-4 40 10-60 |) 42 | 521-3] 43 | 284.7] 7 13 0 18-50 2 | 540-0 3 | 412-8
148-6 45 09-82 || 47 | 520-8 || 48 | 291-1} 5 16-92|| 7 | 539-2|) 8 | 408-0
132-31 18 17 0 10-11 2 | 526-7|| 3 | 379-0] 10 16:01 || 12 | 537-5} 13 | 405.4
127-2 15 08-19 || 17 | 524-1} 18 | 369-0} 20 13-12 ]| 22 | 537-9|| 23 | 401-7
134-4 45 07-69 || 47 | 528-3] 48 | 432-3} 46 08-48 || 47 | 539-0 }| 48 | 409-5
153-6] 18 18 0 08-14]) 2 | 527-7) 3 | 451-1] 7 14 0 08-66 || 2 | 539-4]) 3 | 419-7
172.4 27 | 523-0|) 28 | 477-2) -||———|_-——_|—_—_ ——_;__—
202:51 18 19 8 08-39 || 9 | 522-6]! 10 | 495-7} 8 8 0 | 25 11-46)) 2 | 552-8] 3 | 496.2
249.2 20 08-11 || 22 | 523-0|| 23 | 497-9} 10 12-65 || 12 | 542-7 || 13 | 504-8
309-9] 18 20 0 08-19|| 2 | 525-6] 3 | 505-1] 15 12-69 || 17 | 538-0]| 18 | 507-2
367-4 —| - —— 25 09-62 || 27 | 545°8 || 28 | 506-7
20 13 25 07-67 2 | 535-7 3 | 495-6] 30 09-02 || 32 | 550-8 ]| 33 | 505-5
492-9 3] 06-66 || 32 | 535-2 || 33 | 490-3 40 08-85 | 42 | 552-2]| 43 | 503-7
480-8} 20 14 07-67 || 2 | 534-4|| 3 | 482-37 8 9 0 09-51 || 2 | 552-3]) 3 | 500-1
472-8 —|_—_—_|_____—__—_||_ —
461-1} 22 10 0 | 25 02-99]; 2 | 538-6] 3 | 534-8 8 17 0 | 25 16-82] 2 | 526-3)) 3 | 472-1
10 03-60 || 12 | 542-3)) 13 | 529-6) 10 18-87 || 12 | 527-3|| 13 | 467-0
495-7 20 05-99 || 22 | 540-9 || 23 | 527-9} 15 20:35 || 17 | 527-9]! 18 | 460-5
502-1} 22 11 0 10-43 || 2 | 540-0|| 3 | 522-0} 20 20-52 || 22 | 529-9}| 23 | 454-8
509-4 —|———|——_—_——_ || —_ : 30 19-84 || 32 | 531-3 || 33 | 442-7
513-1} 29 13 0 | 25 13-56], 2 | 544-8] 3 | 497-3} 40 18-34 || 42 | 533-0 || 43 | 433-2
520-1 35 10-18 || 37 | 545-2]) 38 | 492-91 8 18 0 15-34 2 | 536-7 3 | 418-3
524-8] 29 14 0 09-89|| 2 | 544-5]| 3 | 491.8 32 10-23 || 33 | 541-2|| 34 | 423-0
534-3 —||————|--——— = » 8 19 0 05-99 2 | 539-5 3 | 436-1
565-9, * 1 ONP255 22-15 2 | 550-3 3) 497-4) =| ae pee | Ee | ee ea | SS
575-1 30 22-27 || 32 | 551-9|| 33 | 500-37 17 2 0 | 25 21-23|| 2 | 540-6]| 3 | 467-2
Bf | ak 0 15-12|| 2 | 535-4] 3 | 511-1 40 21-26 |, 42 | 541-2] 43 | 468-5
567-54 4 4 0 19-51 PRESS: 1) Oost pian 3 0 20:89} 2 | 543-0]! 3 | 467-7
; 15 20-58 || 17 | 551-1 |) 18 | 548-5]
505-0 25 19-01 || 27} 562-1|| 28 | 547-14 17 8 O |} 25 11-12 2 | 564-2 3 | 484-2
512-6 35 18-13 || 37 | 562-7|| 38 | 550-9 31 07-87 || 32 | 554-3 || 33 | 486-4
517-8 45 17-83 || 47 | 557-7|| 48 | 559-77 17 9 0 08-80 || 2 | 553-7]| 3 | 486-2
4 5) 0 19-12]) 2| 547-9] 3 | 571-8]
445-1 30 15-11 |} 32 | 551-9|| 33 | 577-29 17 12 0 | 25 07-00 2 | 544-5 3 | 469-0
416-4 45 14.64 |] 47 | 552-1|| 48 | 577-8} 30 08-14 || 32 | 543-8 |} 33 | 468-8
403-7] 4 6 0 15-31 2| 554-4|| 3 | 580-0] 17 13 0 08-32 || 2 | 542-7); 3 | 469-8
390-7 |_| 2 || _—|—_-——_] —— -|| ——
371-9] 8 13 || 0 | 25 07-79/| 2]| 539-9] 3 | 479-5] 18 13 || 0 | 25 08-38] 2 | 543-2]| 3 | 439-2
361-7 20 04-98 || 22 | 539-8 || 23 | 473-6] 15 06-06 || 17 | 539-8 ]) 18 | 444-5
367-0 30 04-76 || 32 | 538-9}| 33 | 472-1 20 05-42 |, 22 | 538-5 || 23 | 445-8
372-6] 8 14 0 05-22 2 | 531-0 3 | 475-6} 18 14 0 07-38 | 2 | 537-5 3 | 452-3
377-0 = & ua a
375-9110 8 || 0| 25 07-05]| 2] 560-1|| 3 | 536-6118 21 | 3 | 25 12-04|| 4 | 599.2l| 5 | 470-5
371-0 15 09-20 || 17 | 557-6 || 18 | 540-3 15 13-52 || 17 | 530-5 || 18 | 467-1
372-8 30 10-20 || 32 | 551-7) 33 | 540-8 32 12-87 | 33 | 528-1]| 34 | 463-5
374:0} 10 9 0 11-34 2 | 547-9 3 | 536-8} 18 22 0 11-03 || 2 | 529.4 3 | 457-1
373-4 = = — m —|| | —_______ ——
377°8 T4 12 0 | 25 04-82 2 | 548-0 3 | 471-1] 24 11 O | 25 08-931| 2 | 534-5 3 | 481-1
, BIFILAR. k=0:000140. BALANCE. k=—0-000010.
| June 4¢ 1h, + July 44 12h,
Duly 174 8» om,
: The declination and bifilar magnets vibrating slightly and irregularly ; the declination changing its mean position to a small
pa it has gradually gone eastward till 30™ ; the bifilar has been nearly stationary.
EXTRA OBSERVATIONS OF MAGNETOMETERS, JuLY 24—AvcusT 4, 1845.
108
Gott. BIFILAR BALANCE Gott.
Mean DECLINATION. Ganmectad Gorrecned: Mean DECLINATION.
Time. Time,
a. h. || Min cp we Min. | Sc. Diy. || Min. | Mic.Div.f d. h. || Min.| 2 7
24 11 || 20 | 25 09-10] 22 | 538-1 || 23 | 479-54 24 20 0 | 25 16-82
24 12 0 07-55 PAN Bicol 3 | 476-0 10 18-40
24 13 0 03-30 2 | 536-0 3 | 459-4 20 19-04
15 | 25 03-23 || 17 | 531-2}| 18 | 450-5 30 17-53
24 14 0 | 24 54-26 2 \7a23°5 3 | 405-0} 40 19-49
10 | 24 58-58 || 12 | 520-3}| 13 | 394-9 50 14-50
15 | 25 00-84]} 17 | 521-9 18 | 386-0} 24 21 0 16-53
20 02-17 || 22 | 529-9) 23 | 377-9 15 14-13
245) 02-57 || 27 | 533-5 || 28 | 367-4 32 17-36
30 02-48 |) 32 | 530-0]} 33 | 359-8] 24 22 0 20-33
35 01-38 || 37 | 524-0 || 38 | 352.1 20 17-46
40 | 25 00-67 || 42 | 521-3 || 43 | 343-5 25 17-96
45 | 24 58-62]| 47 | 518-7 || 48 | 337-7 40 18-43
50 56-50|| 52.| 514-41) 53 | 333-3] 24 23 0 18-60
a0 54-95 || 57 | 520-7]|| 58 | 331-3 15 19-17
24 15 0 55:7 Pa) Ap (4 3 | 328-] 30 22-84
5 56-63 7 | 529-0 8 | 322-81 25 0 0 18-81
LO) | B457-Gl | Leaeoale a lela. | alsa
15 | 25 00-27} 17 | 536-2]| 18 | 314.4 35 18-67
20 03-35 || 22 | 538-2] 23 | 312-0] 25 1 0 17-65
25 09-39 || 27 | 546-0) 28 | 306.5 30 16-32
30 13-05 |] 32 | 554-21) 33 | 295-3] 25 2 0 17-19
35 11-81 || 37 | 554-1 |} 38 | 281-8
40 07-57 || 42 | 548-4 || 43 | 275-5] 25 10 0 | 25 03-13
45 07-40 || 47 | 550-6 |] 48 | 273-4 10 02-99
50 05-94 || 52 | 551-9 ]) 53 | 276-8 20 05-89
ao 08-03 || 57 | 547-3] 58 | 279-6] 25 11 0 08-58
24 16 0 08-90 2 | 546-4 3 | 280-6] - ——
15 12-58 || 17 | 529-1 ]) 18 | 290-0 Dee? 0 | 25 23-88
20 14.24 || 22 | 520-7 }| 23 | 295-2 10 25-09
25 15-51 || 27 | 519-0) 28 | 296-3 25 26-74
30 16-55 || 32 | 517-5) 33 | 293-8 30 28:04
35 16-41 | 37 | 515-4]| 38 | 288-4 40 26-50
40 16-26 || 42 | 510-0}) 43 | 284.3 50 23-95
45 17-73 || 47 | 506-5 ]] 48 | 285-2 ( : 0) 22-99
50 19-07 || 52 | 510-3 }| 53 | 291-5 10 21-64
55 90-16 || 57 | 513-6]| 58 | 300-3 16 23-14
24 17 0 21-56 2} 512.3 3 | 304-2 20 22-67
5 24-33 CMe oka 8 | 302-1 25 21-97
10 97-15 || 12 | 514-3) 13 | 298-2 30 21-46
15 29-90 || 17 | 525-3} 18 | 291-1 35 21-24
20 29.26 || 22 | 535-6 || 23 | 283.8 40 21-12
25 26-81 || 27 | 527-7 || 28 | 278-2 45 21-68
30 94.19 || 32 | 526-0) 33 | 274.4 50 21-24
35 23-341 37 | 525-2]| 38 | 274.7 55 21-50
40 22.77 || 42 | 520-2] 43 | 277-2 1 4 0 20-55
45 24-52 || 47 | 522-.9]| 48 | 278.2
50 25-54 || 52 | 523-3,) 53 | 280-0 335) 22.80
55 24-82|| 57 | 516-0]) 58 | 281-6
24 18 0 22-87 2 | 512-8 3 | 285-7 1 ees 0 19-91
5 29.28 7 | 514-0 8 | 288-5 10 18-77
15 20-89 || 17 | 513-4} 18 | 289-3 20 | 19-37
40 18-30 | 42 | 516-2]) 43 | 315.4 30 | 18-50
24 19 0 19-07 2) 518-1 3 | 320-2 40 21-06
10 19-04 || 12 | 514-9]|| 13 | 322-7 50 29-20
15 18-20] 17} 512.4) 18 |'327-51 2 6 | o 19-41
25 19-61 || 27 | 514-0]; 28 | 328-4 155 16-68
30 19-81 || 32 | 510-2}| 33 | 334-7 30 | 14-53
40 18-77 || 42 | 515-5 || 43-| 341-1 en? 0 | 25 13-25
50 17-22 || 52 | 508-1 || 53 | 349.0 |
55 17-00 | 57 | 515-011 58 | 349-2 10 5 | 24 54.01
BiFILAR. k=9:000140.
July 244 14 15m. A very small insect climbing along one of the balance spider crosses ; length of the insect about 7 micrometer divisions, ¢
rather more than a thousandth of an inch.
July 254.
The instruments slightly disturbed throughout the evening.
BIFILAR
Corrected.
Se. Div.
518-9
520-3
525-7
518-2
511-7
2 | 514-3
512-8
513-0
2 | 516-9
505-9
503-3
2 | 500-4
497-9
2 | 505-7
510-5
2 | 529-8
535-3
2 | 538-2 ||
6 |} 551-8
517-8 ||
503-9 ||
499-5 || ;
BALANCE
Corrected.
» |Mic. Div.
3 | 350-9
355-0
360-5
361-4
368-0
375-4
3 | 382-2
388-1
396-2
3 | 458-7
465-9
471-4
470-0
464-1
468-1
3 | 468-6
481-4
480-4
476-5
474-2
473-8
475.3
479-7
481-4
484-2
3 | 488-1
493-7
502-5
525-6
3 | 560-7
575-9
575-3
569-8
562-3
565-6
3 | 569-4
566-9
3 | 537-2]
7 | 408-9
Time.
473-7]
576-9 |
Gott.
Mean
BALANCE.
k=0:000010.
DECLINATI
4
= OCC eS hk
|
/
FILAR
rected.
Se. Div.
551-0
548-6
545-4
544:8
544-6
537-0
532-9
535-3
534-2
536-5
536-2
538-3
534-3
534-5
537-1
535-0
534-8
536-2
535-6
533-6
343-1
547-4
541-6
535-2
531-0
540-1
544-3
541-5
534-7
531-5
533-4
541-6
534-6
545-9
551-1
540-9
530-3
527-1
527-1
529-2
| 532-4
| 539-6
541-8
542-6
544-2
542-0
540-6
517-2
513-7
509-8
558-5
535-1
538-7
537-7
535-7
BALANCE
Corrected.
Min.
EXTRA OBSERVATIONS OF MAGNETOMETERS, AuGusT 1—31, 1845.
Mic. Div.
406-9
407-5
408-8
408-4
408-7
408-5
404-7
7 16
374-0] 7 17
462-2
452-6
427-1
426-45
9 12
15 3
423-7
430-7
429-9
427-0
422-61 15 4
419-4
415-2
412-4
410-8
410-3
410-3
422-8
438-3
472-1
463-1
459-6
15 5
17 13
17 14
17 15
506-7
518-3
517-9
435-1
437-4]
17 16
DECLINATION.
Min. |. ° ,
0 | 25 06-12
0 16-08
15 15-44
30 14-53
0 13-36
0 | 25 06-14
16 15:07
0 08-19
0 | 25 12-83
15 09-76
30 08-18
45 05-42
0 04-56
10 06-63
20 10-33
30 12-42
45 17-83
51 21-90
55 24:79
0 26-16
5 25-02
10 22-64
15 18-70
20 15-22
25 12-98
30 11-64
35 11-64
0 07-20
30 06-39
0 06-26
0 | 25 00-69
5 00-96
10 00-51
0 | 25 22-80
PA) 21-86
| 30 21-23
45 20-52
55 20-89
0 19-86
15 19-28
25 18-25
35 17-42
45 16-75
0 15-94
0 | 25 01-34
10 00-67
0 04-91
0 16-15
15 20-11
20 23-21
25 23-27
30 20-99
35 18-16
50 11-24
0 08-25
10 04:84
BIFILAR. k=0-000140.
BIFILAR
Corrected.
Min.
2
2
17
32
2
Sc. Div.
535-3
531-9
530-9
532-1
534-8
527-3
527-1
527-7
542-3
641-1
542-0
540-5
529-8
532-6
535-2
534-6
537:8
534-9
533-3
532-9
531-9
533-2
535-2
538-0
539-5
539-6
538-8
540-6
540-3
537-5
550-6
546-8
544-3
513-7
559-8
565-6
568-1
572-6
563-6
542-3
537-6
541-3
546-1
550-8
531-8
526-8
537-8
529-5
550-8
597-5
555-8
552-0
549-3
547-2
548-2
547-7
BALANCE
Corrected.
Min.
3
18
Mic. Div.
444.9
432-7
430-8
429-7
425-9
467-5
451-9
466-9
444.3
389-9
393-6
398-1
407-9
411-1
411-6
408-9
402-4
400-0
397-8
390:8
382-8
377-7
3723
371-7
373-7
379-9
385-1
402-8
418-9
432-4
438-1
438-7
441-2
483-3
482-0
482-6
487-4
494:5
502-3
521-6
529-6
533-3
544-9
537-8
421-8
422-8
434-0
423°3
414-3
406-5
393-2
379-5
372-0
365-4
366-3
369-1
* See notes on the Aurora Borealis, after the Extra Observations of Magnetometers.
Aug. 84 1]h—19h,
MAG. AND MET. oss. 1845.
The magnets moving irregularly at intervals.
109
Gott. BIFILAR BALANCE
Mean DECLINATION, Corrected. Corrected.
Time.
da. fh. Min. e. a Min. | Se. Diy. || Min. | Mic. Diy.
17 16 || 20 | 25 01-61 || 22 | 542-5) 23 | 375-6
30 00-87 || 32 | 535-6 || 33 | 388.5
45 02-42 || 47 | 535-1 || 48 | 399-1
tefl 0 01-95 21 538-4 3 | 404-0
35 06-79 || 37 | 519-3) 38 | 421-1
L218 0 11-10 2 | 525-6 |} 3 | 425.2
22 14 0 | 25 02-01 2 | 538-1 3 | 447-5
10 01-41 || 12 | 536-1} 13 | 448.5
20 01-95 || 22 | 536-8 || 23 | 449.6
30 02-64 || 32 | 534-9 || 33 | 452-0
22 15 0 04-98 2 | 536-4 3) | 455-2
24 16 0 | 25 14-21 2 | 539-4 3 | 430-7
10 13-79 || 12 | 546-3 || 13 | 420-7
30 07-10 || 32 | 547-5 || 33 | 411-5
24 17 0 03-40 2) 543-5 3 | 418-1
26 4 0 | 25 16-62 2 | 562-0 3 | 466-1
Sih 18-84 || 38 | 545-5 || 39 | 491-5
40 19-12) 42 | 550-9 || 43 | 491.2
26 5 0 17-76 2 | 552-1 3 | 503-4
28 12 0 | 25 03-84 2 | 540-2 3 | 446-0
15 06:64 || 17 | 544-2|| 18 | 444.0
35 04-61 | 37 | 541-8] 38 | 440-4
28 13 0 05-72 2 | 542-9 3 | 432-3
29 3 0 | 25 22-98 2 | 560-9 3 | 462-5
10 23-12 || 12 | 552-0] 13 | 465-3
20 21-36 || 22 | 534-1 |) 23 | 471.2
25 20-80 || 27 | 529-6 || 28 | 472.92
35 16-93 || 37 | 537-2) 38 | 453-8
29 4 0 | 25 14-87 2 | 553-3 3 | 477-4
PAS) 7 O | 24 51-16 2 | 549-9 3 | 493-4
5) 48-58 || 7 | 560-1 8 | 494.4
10 46-41 || 12 | 568-7 || 13 | 493-8
15 46-11 || 17 | 578-1 || 18 | 489-6
20 50-25 || 22 | 574-9 || 23 | 489-3
25 52-91 || 27 | 569-7 |) 28 | 489.8
30 45-56 || 32 | 559-1 || 33 | 493-2
40 57°84 || 42 | 552-4 |] 43 | 494-5
50 | 24 57-84]| 52 | 545-1 || 53 | 494.0
29 8 0 | 25 01-78 2] 548-1 3 | 490-6
20 01-41 || 22 | 542-1 || 23 | 484.6
40 05-32 || 42 | 534-4 || 43 | 477-7
29 9 0 04-08 2] 531-9 3 | 461-0
15 03-74 || 17 | 515-7 |) 18 | 440.0
20 | 25 01-21 |) 22 | 511-8]) 23 | 418-5
25 | 24 59-57 || 27 | 530-2|| 28 | 386-5
30 57-31 || 32 | 512-3]] 33 | 349.5
35 53-11 || 37 | 511-9 |) 38 | 327-3
40 43-65 || 42 | 515-1 || 43 | 285-0
45 46-73 || 47 | 521-7] 48 | 244.1
50 52-20 || 52 | 519-7 || 53 | 206-1
*) 55 46-41 || 57 | 496-3
29 10 0 | 24 45-87 2 | 508-5 3 | 224-5
31 15 0 | 25-17-12 2 | 525-4 3 | 418-1
10 17-49 || 12 | 528-6]| 13 | 406-1
30 13-91 || 32 | 531-8 ]] 33 | 383-2
BALANCE. k=0:000010.
ir
110 ExtTrA OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 1—19, 1845.
Gott. Gott. Gott.
Mean DECLINATION. Ruliaay meme Mean DECLINATION. Pictiave Gta on DECLINATIO
Time. Time. : : Time. :
‘ash; Min. ° ‘ Min. | Se. Div. || Min. | Mic. Div.} d. h. || Min. © i! Min. | Se. Div. || Min. | Mic. Diy. d h. | Min. [2 =
31 16 0 | 25 08-92 1 | 533-4 385-3} 3 20 | 24 58-45 |} 22 | 541-2] 23 | 498-4] 17 10 O | 25 104
a Be eS ee ee — 41 | 24 59-81]|} 42 | 545-7 || 43 | 490-8 10 07:
1 8 0 | 25 01-85 2 550-0 | 3 | 472-6 51 | 25 03-16]! 52 | 544-0 |) 53 | 488-3 20
15 02-93 || 17 | 550-4) 18 | 467-4 55 04-81 || 57 | 539-5 |) 58 | 487-8] 17 11 0
30 08-45 || 32 | 555-6) 33 | 453-97 3 10 0 04-51 2 | 541-3 3 | 485-2 20
45 07-60 || 47 | 538-6] 48 | 449-5 10 06-32 || 12 | 542-5] 13 | 480-6 307125
19 0 05-11 2 | 542-8 3 | 445-9] 3 11 0 08-43 2 | 539-3 3 | 474-3 35 | 24
| — ———|——— —- 42
ied 0 | 25 17-06 2 | 525-3 3 | 410-4] 4 4 0 | 25 06-93 2 | 564-4 3 | 529-3 45
10 18-77 || 12 | 531-0} 13 | 400-5 10 05-56 || 12 | 557-7 || 13 | 537-1 50
20 17-60 || 22 | 535-1 |} 23 | 390-4] 4 5 0 11-55 2 | 535-7 3 | 539-0 aD
40 15-31 || 42 | 539-2|| 43 | 376-8 15 10-70 || 17 | 534-1} 18 |. 538-2] 17 12 0
1G 0 09-66 2 | 540-3 Bebe WA OKC)! | sate! oa) 0 09-44 2 | 536-8 3 | 526-9 5
Lialv¢ 0 12-18 2 | 528-8 3 | 387-0 10
25 16-79 || 27 | 520-7) 28 | 395-8] 4 13 0 | 25 13-39 2 | 536-8 3 | 424-6 20
35 19-17 || 37 | 522-0}| 38 | 393-5 15 12-31] 17 | 537-6 || 18 | 424-6 | 25
45 21-59 || 47 | 529-2] 48 | 385-3] 4 14 0 07-71 2 | 538-2 3 | 441-1 30
1 18 0 16-41 2 | 533-3 3 | 370-4 §——-|__————__||_| - — | 40
10 13-52|| 12 | 530-7 || 13 | 374-7] 7 13 0 | 25 22-00 2 | 526-6 3 | 456-3 50
1 19 0 12-58 2 | 532-6 3 | 395-2 10 22-06 || 12 | 531-2] 13 | 441-4] 17 13 0 | 24
——_—— —||_ 20 20-55 || 22 | 538-0) 23 | 419.2 15) | 25
2) 5 0 | 25 08-82 a4) B38 y7 fall 3 | 553-9 25 18-23 | 27 | 536-8 || 28 | 412-0
10 03-37 || 12 | 546-0 ]} 13 | 552-5 40 12-42 || 42 | 540-0} 43 | 404-9 20
20 04-17 || 22 | 554-6] 23 | 551-1] 7 14 0 11-64|| 2 | 533-8 3 | 396-7
30 08-38 || 32 | 546-9]| 33 | 546-2] 7 16 0) 02-28 | D529-7 3 | 412-4
55 10-83 || 57 | 534-9 || 58 | 524-2 10 03-02 |} 12 | 529-6 || 13 | 415-1 25
Zino: 0 10-60 pa |! 5983575) 3 /ES2007 il aie elev, 0 03-61 2 | 530-6 3 | 415-5
2 9 0 | 25 00-47 2 | 536"1 3 | 486-9 10 02-01 || 12 | 531-0]| 13 | 419-3 30
10 | 24 57.17]| 12 | 551-7]| 13 | 464-3] 7 18 0 01-31} 2 | 539-0 3 | 441-3 35
15 | 25 02-75 || 17 | 547-2]] 18 | 458-9 10 02-69 || 12 | 538-9 || 13 | 445-7 40
20 | 24 55-13] 22 | 556-2]| 23 | 447-4] 7 19 0 04-86 2 | 534-9 3 | 459-8 45
25 | 24 56.54]) 27 | 564-3] 28 | 437.2 | ———-—|_|—__—__|| —_- —. 50
30 | 25 00-40 || 32 | 547-3 |) 33 | 431-4] 8 14 0 | 25 08-36 2 | 543-1 3 | 411-9 55
35 02-82 || 37 | 555-7 || 38 | 425-0 15 08-73 || 17 | 541-7} 18 | 414-4] 17 14 0
40 06-86 || 42 | 550-2]! 43 | 420-5] 8 15 0 05-52 2 | 539-5 3 | 429-2 11
50 12-73 || 52 | 516-3 || 53 | 422.5 —|—_|\—_— — — 20
55 04-81 || 57 | 530-4|| 58 | 423-4} 9 13 OF 25; Last 2 | 543-2 3 | 438-5 40
2 10 0 04-17 2 | 541-6 3 | 421-8 15 14-80 || 17 | 548-5 |} 18 | 427-9 45
el 5 09-89 7 | 530-8 8 | 422-41 9 14 0 10-07 2 | 546-0 3) 412-37 VAs 0
10 11-37 || 12 | 517-7 || 13 | 427-3] 9 16 0 07-24 2 | 540-3 3 | 431-3
15 07-24 || 17 | 522-6]| 18 | 431-2 20 05-60 || 22 | 540-5 || 23 | 434-7] 17 19 0: | 25
20 06-39 || 22 | 529-0 || 23 | 435-7 1 35 06-30 || 37 | 540-3 || 38 | 437-6 20
25 06-63 || 27 | 529-1 |] 28 | 438-5] 9 17 0 06-46 2 | 541-5 3 | 438-9 40
7) lal 0) 05-43 2 | 532-4 3 | 451-8 —||——— — - 17 20 0
Be 0 09-46 Zao als 3 | 400-7] 11 9 0 | 25 03-02 2 | 544-6 3 | 474-4 20
* 15 07-20 | 17 | 543-8 |) 18 | 394.9 15 06-06 || 17 | 541-51 18 | 473-1] 17 21 0
2°13 0 07-20 2 | 534-0 3 | 405-7] 11 10 0 08-32 2 | 543-2 3 | 465-8 10
Pa 15) 0 11-72 2 | 534.3 3 | 433.1 | ————|—_ -- 25
15 09-27 | 17 | 537-2|| 18 | 428-7} 12 13 0 | 25 09-66}} 2 | 552-8 3 | 435-7 42
2 16 0 04-32 2) 2987, 3 | 443-8 15 07-13 || 17 | 548-1} 18 | 426-5] 17 22 0
30 06-34 || 32 | 543-4 |) 33 | 424.3 —||_——
3) val 0 | 25 10-47 2 | 542.2) 3 | 584-0] 12 14 0 06-09 2 | 543-2 3 | 419-27 18 12 0 | 25
15 17-93 || 17 | 531-9) 18 | 587-6 =| |—_-——- - 30
25 16-89 | 27 | 522-5] 28 | 582-7] 13 9 0 | 25 03-57 2 | 531-8 3.| 465-11 18° 13 0
40 16-21 || 42 | 535-0} 43 | 580-6 10 04:07 || 12 | 537-0] 13 | 463-7 —-|——— -
50 13-16 | 52 | 542-9|) 53 | 576-6 30 07-54|| 32 | 540-9) 33 | 461-5] 19 9 0 | 25 OF
3. 5 0 14-98 2 | 549-7 3 |oia-1 ps LO 0 08-88 2! 540-3 3 | 458-1 | 15 “
: — = ; 30 | 25507
3.9 0 | 25 01-45 2 | 534-0 3 | 503-3] 16 10 0 | 25 04-12 2 | 538-8 3 | 460-5] 19 10 0 | 24 59:
10 | 24 59-68} 12 | 537-6) 13 | 501-0 10 04-26 || 12 | 536-9 |) 13 | 460-4 10 | 25 04
115) 58-25 || 17 | 538-6! 18 | 499-47 16 11 0 08-08 2 | 541-5 3 | 452-3 20 | 24 58
BIFILAR. k=0-000140.
BALANCE. k=0-:000010.
* See notes on the Aurora Borealis, after the Hatra Observations of Magnetometers.
Sept. 174 10 46m,
Clock put forward 16%; error afterwards + 25,
ExtTRA OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 17—OcTOBER 20, 1845. lll
4 Gott. BIFILAR BALANCE Gott. BIFILAR BALAN
oer aad. Mean DECLINATION. Corrected. Corrected. Mean DECLINATION, Corrected. Conant
Time. Time.
Se. Div. || Min. | Mic. Div. da: ih Min. c Y Min. | Se. Div. |] Min. | Mic. Div. doh: Min. e 4 Min. | Se. Div. |} Min. | Mic. Div.
555-3 3 | 456-67 19 10 || 30 | 24 57-21} 82 | 524-3] 3; | 431-0] 3 15 0 | 25 08-16 2 | 540-8 3 | 414.0
543-0 || 13 | 458-8 40 | 24 59-70] 42 | 524-4] 43 | 430-2 ed pees
546-1 || 23 | 456-74 19 11 0 | 25 05-77 2 | 525-3 3 | 433-8 6 12 0 | 25 11-61 2 | 554-1 3 | 431-6
535-0 3 | 447.2 —_———— ooo — 15 08-65 || 17 | 548-2]) 18 | 428.3
539-0 || 23 | 423-37 20 10 0 | 25 04-22 2 | 540-0 3 | 457-9 6 13 0 06-73 544-5 3 | 429-6
524-2 || 33 | 422-5 10 | 24 57-10} 12 | 553-6] 13 | 447-9 — Be
525-2|| 38 | 426-1 15 54-68 || 17 | 559-9] 18 | 443-4 9 11 0 | 24 43-72 mols 3 | 420-3
§32-1 || 44 | 428-1 20 54.92 || 22 | 560-1] 23 | 440-2 5) 42.71 || BERD 8 | 403.4
536-6 || 48 | 424-1] 30 | 24 56-97} 32 | 544-5] 33 | 439-3 10 42-44 12 | 524-5] 13 | 393-6
539-4 || 53 | 416-07 20 11 0 | 25 01-78 2 | 527-8 3 | 443-3 15 44-97 | 17 | 518-1]) 18 | 377-5
538-5 || 58 | 412-2 P4ll 05-89 | 22 | 533-1} 23 | 443-4 20 | 24 53-58 || 22 | 499.7 || 23 | 357-5
530-4 3 | 410-84 20 12 0 09-39 2 | 533-8 3.) 436-1 25 | 25 02-48] 27 | 476-9 || 28 | 328.3
524-5 8 | 408-8 | |_| | 3 10-36 || 32 | 457-2) 33 | 296-0
516-5 || 13 | 404-37 24 8 0 | 25 11-10 PN IS T(Orl 3 | 441-3 35 13-74 | 37 | 472-1} 38 | 305.9
511-7 || 23 | 398-6 20 10-98 || 22 | 551-7] 23 | 442.4 40 11-77 || 42 | 433-1]} 43 | 263-8
509-9 || 28 | 394-5] 24 9 0 10-95 PA || SNS I/EP 3 | 437-4 45 | 25 00-98 || 47 | 450-7 || 48 | 245.4
512-9 || 33 | 389-5 30 11-21 || 32 | 557-2) 33 | 436-8 50 | 24 55-36] 52 | 482.2 )|| 53 | 239-8
506-6 || 43 | 373-4} 24 10 0 10-80 2 | 555-2 3 | 437-8 55 53-74 || 57 | 493-7 || 58 | 233-8
505-3 || 53 | 362-1 }- == — - 9 12 0 53-32 2 | 499-1 3 | 236-8
506-5 3 | 339-64 25 10 0 | 24 56-40 2 | 544-0 3 | 453-0 BY 53-54 7 | 491-5 8 | 243-1
468-8 || 18 | 266-8 10 | 24 56-57 || 12 | 542-5]/ 13 | 449-1 10 52-50 12 | 498-1 || 13 | 244.8
466-2 25 11 3 | 25 07-81 4 | 547-7 5 | 409-0 15 52-46 || 17 | 495-4 || 18 | 248-9
461-1 20 09-86 | 22 | 541-6|| 23 | 406-1 25 46-65 || 27 | 503-4 |) 28 | 262.5
461-0 || 23 | 238-1] 25 12 0 07-71 2 | 534-9 3 | 396-5 30 46-52 || 32 | 504-0 |) 33 | 266-8
462-7 40 48-83 | 42 | 501-6 || 43 | 272-8
468-3 25 16 0 | 25 14-13 2 | 518-6 3 | 382-4 50 56:07 || 52 | 498.2 || 53 | 281-6
471-8 || 28 | 225-9 31 17-26 | 32 | 521-5 || 33 | 377-6 9 13 0 | 24 54-01 2 | 496-7 3 | 298-3
481-9 || 33 | 216-2} 25 17 0 12-76 2 | 529-8 3 | 388-0 15 | 25 01-14]) 17 | 510-0]) 18 | 344-1
501-3 || 38 | 216-3 ———_|———__ - 32 05-97 || 33 | 518-7 || 34 | 360-0
815-6 |) 43 | 215-7] 27 7 0 | 24 43-06 2 | 555-0 3 | 487-1 9 14 0 | 25 01-65 2 | 526-6 3 | 323-4
529-6 || 48 | 215.7 5 46-18 7 | 559-7 8 | 482-3 15 | 24 55-76] 17 | 526-8|| 18 | 309-5
33:6 || 53 | 224-1 10 52-04 || 12 | 553-2) 13 | 482-6 30 | 24 52-94]) 32 | 519-5 || 33 | 307-3
632-3 || 58 | 229-7 15 55:37 || 17 | 542-0) 18 | 484-1 45 | 24 57-78] 47 | 517-7]| 48 | 314-1
525-0 3 | 239-0 20 57-08 || 22 | 533-1 || 23 | 485-5 9 15 0 | 25 00-06 Dalvaso-1 3 | 319-5
924-3 || 13 | 261-2] 27 8 0 | 24 57-56 2 | 528-9 3 | 485-2 15 00-06 | 17 | 539-4) 18 | 318-5
519-6 || 23 | 277-6 40 01-61 || 42 | 538-8] 43 | 350-2
923-8 || 43 | 292.0] 27 11 0 | 25 16-93 2 | 519-6 3 | 338-8 9 16 0 06-73 2 | 535-2 3 | 372:6
526-4 || 48 | 292.9 10 05-35 || 12 | 535-3) 13 | 319-3
533-2 3 | 316-1 15 00-80 || 17 | 561-9] 18 | 324-0] 9 22 O | 25 20-77 2 "a2 NI 3 | 436-7
20 04-24 || 22 | 560-6 || 23 | 323-7 36 15-54 | 37 | 533-2] 38 | 429-5
540-6 3 | 424-3] 27 12 0 09-57 Pra easy | 3 | 342-8 9X23 3} 16-92 4 | 528-5 5 | 437-6
043-4 || 23 | 420-1 _———$— | ——= ——
935-6 || 43 | 418-9 1 16 0 | 25 13-90 2 | 551-1 3 | 396-1] 15 10 0 | 25 06-73 2 | 540-6 3 | 414-9
517-8 3 | 425-9 10 10-65 || 12 | 550-3) 13 | 397-4 6 04-24 7 | 544-2 8 | 412-9
517-4 || 23 | 425.2 1eeS 0 W-Si7 2 | 540-2 3 | 408-7 20 00-48 || 21 | 544-8] 22 | 410-2
523-0 3 | 402-8 ———_|—___. — iy li 0 05-20 2 | 537-0 3 | 413-9
623-9 || 13 | 402-7 Bes, 0 | 25 07-04 2) 534-1 3 | 475-7 =
529-8 || 28 | 404-6 20 04-56] 22 | 546-6|) 23 | 483-41 17 11 0 | 25 12.48 2 | 552-9 3 | 425-4
526-1 || 44 | 408-1 25 07-07 | 27 | 541-4] 28 | 484-8 45 06-29 || 27 | 540-6}| 28 | 418-0
524-0 3 | 407-9 30 07-47 || 32 | 541-3] 33 | 485-2 45 | 25 03-27 || 47 | 530-6|| 48 | 421-6
ed 3. 6 0 11-75 2 | 535-9 3 | 482-6] 17 12 0 | 24 59-76 2 | 540-3 Bi |) CPB a7/
540-0 3 | 431-2 33 | 25 02-72) 34 | 534-3] 35 | 430-4
536-8 || 33 | 425-8 a2 0 | 25 04.37 2 | 547-5 3 | 433-1] 17 13 0 04-41 PAA || BysY4l87/ 3 | 431-1
534-6 || 3 | 428-0 10 03-70 || 12 | 545-3|| 13 | 433-3]- os | eae 2 eS Sa ES ee tee
————||$—_— 20 03-95 || 22 | 542-51 23 | 431-8} 19 14 0 | 25 02-82 2 | 540-5 3 | 405-3
§28.-4 3 | 475-0 Beis Wh (0 08-41 2 | 540-3 3 | 432-3 30 04-91 || 32 | 541-7] 33 | 407-5
539-2 || 18 | 465-9 3 14 0 18-77 2 | 550-1 3 | 407-0] 19 15 0 05-96 2 | 542-9 3 | 406-1
540-1 || 33 | 447-9 10 14-70 | 12 | 546-9}) 13 | 399-9
538-3 3 | 429-6 20 10-40 | 22 | 545-3 |) 23 | 399-1] 20 3 0 | 25 25-43 2 | 542-7 3 | 445-5
517-7.) 13 | 427-5 30 08-93 | 32 | 544:0]) 33 | 401-8 15 24-75) ie Poaseo|| le) | eto2-.
515-6 || 23 | 432-5 40 08-61 || 42 | 542-2]) 43 | 406-4 25 22-10 | 27 | 527-3] 28 | 455-7
BIFrimuar. k=0:000140. BaLance. k=0:000010.
Sept. 204165, Instruments slightly disturbed throughout the night.
Sept. 284 13h_18h, c
Sept. 294 13h—_18h,
Idem.
Idem.
20
20
20
20
20
20
20
20
21
21
21
21
21
21
12
13
15
17
13
14
DECLINATION.
Min.| ° u
30 | 25 22.37
40 22-91
50 21-97
0 20-05
15) 17-86
25 16-21
40 13-99
0 13-07
0 | 25 08-95
15 03-02
Buf 05-18
0 | 25 05-79
0 | 24 58-33
6 58-15
10 57-78
20 58-43
30 | 24 57-37
47 | 25 00-38
0 01-85
42 03-02
0 00-38
0 12-01
20 14-55
30 18-95
35 21.27
40 20-99
45 20-16
50 19-24
0 17-54
10 16-15
0 19-91
20 16-15
40 17-89
0 17-89
0 | 25 08-12
Oo) | Zo 0bala
10 | 24 59-32
15 54-46
20 58-67
25 55-71
30 43-72
35 32-63
36 30-82
39 32-10
40 33-15
45 40-89
50 44-03
55 43-85
0 46-59
10 51-16
20 | 24 55-93
0! 25 07-13
30 07-00
0 01-07
30 05-05
0 04-75
0 08-95
22 11-10 |
EXTRA OBSERVATIONS OF MAGNETOMETERS, OCTOBER 20—NOVEMBER 5, 1845.
BIFILAR
Corrected.
Se. Div.
528-6 || 33
522-0
534-1
2 | 536-2 3
531-2
535-1
537-5
2 | 542-2 3
2] 533-0] 3
531-2
529-5
2 | 539-1] 3
2 | 539-2] 3
7 | 534-3] 8
529-4
526-8
529-5
538-7
2 | 535-9], 3
537-0
2 | 540-5] 3
2 | 538-8] 3
532-0
532-1
534-6
535-6
532-6
529-1
2) 521-6] 3
520-4
2] 518-4] 3
533-2
537-2
2 | 539-3] 3
2 | 532-0] 3
7 | 519-0] 8
510-9
518-5
520-5
526-2
528-7
552-1
561-6
560-8
548-4
538-6
537-3
2 | 534-4] 3
524-8
523-0
2 | 536-3] 3
539-7
2 | 530-5) 3
524-3
2 | 517-0), 3
2 | 532-7], 3
544-7 || 24
BIFILAR.
BALANCE
Corrected.
in. | Mic. Div.
457-4
459-6
459-1
461-3
463:5
461-2
456-7
450-7
438-3
441-8
448-7
441-2
400-5
397-9
397-7
402-0
404-4
404-1
404.2
401-3
395-6
388-0
387-8
384-6
378-4
371-1
366-9
364-1
364-9
371-4
396-3
392-2
397-6
399-8
453-3
459-2
462-4
466-9
476-9
490-7
506-4
502-9
482-9
477-9
473-6
469-0
466-1
467-4
467-1
445:8
415-7
403-3
389-9
369-1
318-6
283-0
k=0-000140.
Gott.
Mean
Time.
21 15
1 10
2 16
17
19
bo bo
DECLINATION.
Min. id u
30 | 25 08-14
45 05-49
50 06-73
55 08-26
0 06-06
10 08-28
15 11-51
20 15-24
25 17-80
30 19-98
35 20-38
40 19-34
45 18-23
0 17-46
30 13-29
0 11-10
0 | 25 01-58
15 06-23
40 11-54
0 12-18
0 | 25 03-40
10 05-23
0 07-27
0 | 24 59-27
10 | 24 58-79
20 | 25 00-24
40 00-13
0 01-75
0 | 25 02-82
10 04-17
20 03-70
30 02-69
42 03-97
0 10-23
10 12-92
20 12-55
30 13-93
40 13-05
0 11-71
0 | 25 02-39
10 | 24 59-86
20 58-15
45 57-44
0 59-19
0 | 25 17-83
10 13-59
15 12-38
30 09-33
45 06-32
0 06-46
30 09-03
0 08-59
0 12-55
25 15-01
48 15-20
0 14-84
BIFILAR
Corrected.
Sc. Div.
546-4
527-1
520-5
512-7
2 | 510-9
514-7
513-0
509-6
508-2
BALANCE
Corrected.
in. | Mic. Div.
286-9
301-9
306-8
307-0
3 | 306-7
306-8
304-0
300-0
296-0
295-0
293-0
291-1
291-9
3 | 306-2
316-4
3 | 346-1
3 | 467-3
468-8
459-6
3 | 454-3
3 | 449-8
3 | 400-5
391-7
388-9
388-7
392-0
3 | 398-5
403-3
3 | 406-2
3 | 414-5
418-2
421-6
2 | 530-6 ||
BALANCE.
3 | 422-1
k=0-:000010.
* See notes on the Aurora Borealis, after the Extra Observations of Magnetometers.
Clock put back 8%; error afterwards 05.
Noy. 54 7h 55m,
Gott.
Mean
Time.
4.
4
h.
9
“I
DECLINATIE
yi > be
sessssessses
25
ou
25
9NN Ree ee
= bo <O ~I OO DB
WNHNNNHN = WL
25
24
Extra OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 4—27, 1845. 118
Gott. BIFILAR BALANCE Gott. BIFILAR BALANCE
pen a narra ven DECLINATION. Corrected. Corrected. Mean DECLINATION. Corrected. Corrected.
, Sc. Div. || Min. |Mic.Div.} 4. oh. |] Min.]| © = ” Min. | Se. Diy. || Min. | Mic.Div.f d. oh. || Min.| ° 7” Min. | Sc. Div. |] Min. | Mic. Div.
535-4 3 | 464-7] 5 9 0 | 25 05-32 2 | 532-5 3 | 536-8] 17 10 0 | 25 05-82 P| 5 te308) 3 4 abel
547-4 || 23 | 450-9 21 07-67 || 22 | 535-9}| 23 | 528-6 16 06-21 || 17 | 540-8 || 18 | 443.8
541-0| 33 | 448-3) 5 10 0 09-91 2 | 538-2 3) |) eae) | |e liz a 0 06-12 21 535-9 3 | 432-9
542-0 || 43 | 446-3 ]- —— 30 08-88 || 32 | 546-9|| 33 | 419.3
534-0] 53 | 448-0] 7 11 0 | 25 03-04 2) 541-3 3 | 423-34 17 12 0 07-94 2 | 533-8 3 | 402-7
529-7 3 | 449-8 40 02:86 || 42 | 532-0}) 43 | 420-8 | 30 (5-85 || 32 | 540.9] 33 | 404.2
530-3]| 13 | 450-4] 7 12 0 04-71 2 | 5328 3 | 419-4] 17 13 0 07-69 2) sic 3 | 402-4
530-9 | 23 | 451-9 || —— | a
531-5 3 | 446-2] 7 17 0 | 25 12-08 2 | 540-2 3 | 411-1) 18 6 O | 24 54-32 2 | 532-3 3 | 472-2
529-7 || 23 | 444-5 32 15-07 || 33 | 544-3 || 34 | 402-5 | 10 | 24 57-37 || 12 | 545-7
545-2 3 | 424-5 50 14-08 || 51 | 545-8 ]] 52 | 397-0 20 | 25 00-84 ]| 22 | 542-4); 23 | 471-4
543-4] 13 | 414-2] 7 18 0 11-98 2 | 543-9 3 | 395-1]. | 30 04-10 || 32 | 536-5|| 33 | 470-4
841-9} 18 | 412-1 | ————|__|___- Se re 0) 03-43 2} 539-8 3 | 464-7
539-0} 28 | 410-54 10 11 0 | 25 00-72 2 | 541-3 3 | 434.4 30 08-11 |} 32 | 542-3]) 33 | 457.2
535-3 || 48 | 411-0 10 | 24 57-22|| 12 | 538-5|| 13 | 435-0] 18 8 || 0 | 25 09-62 2) 545-2 3 | 450-5
535-8 3 | 406-4 15 | 24 56-43|| 17 | 536-0]| 18 | 486-71 18 11 4 | 24 54-57 5 | 549-8 6 | 434-1
20 | 24 57-49 || 22 | 535-4|| 23 | 437-4 10 53-98 || 12 | 557-2|| 13 | 429-2
542-3 3 | 434-2 38 | 25 03-43)| 39 | 535-4] 40 | 438-0 | 15 54-15 || 17 | 557-4]] 18 | 427-0
543-0], 18 | 432-8} 10 12 0 06-39 2 | 542-6 3 | 430-5 20 53-49 || 22 | 555-0]| 23 | 425-2
548-5 3 | 431-5] 10 13 0 12-89 2 | 544-8 3 | 417-1 | 25 54-35 || 27 | 549-7 || 28 | 425-8
15 15-39 || 17 | 546-9 || 18 | 409-6 | 30 55-42 || 32 | 543-9|| 33 | 426-1
530-4|| 3 | 476-8 35 10:50 || 37 | 545-3 || 38 | 401-1 35 55-49 || 37 | 541-5 || 38 | 426-3
50 | 24 59-59]| 52 | 533-0]| 53 | 429.2
18 12 0 | 25 03-43] 2 | 535-0]) 3 | 429.4
621-4 10 14 0 08-29 2 550-1 3 | 389-9
eos) | 497.012 ee ee ee |
541-3) 43 | 504-1] 16 22 0 | 25 16.79|| 21] 510-9|| 3 | 422-9 15 10-36 || 17 | 539-1]] 18 | 424.6
545-6 || 53 | 509-4 15 90-58 || 17 | 509-7|| 18 | 422-6 30 10-43 || 32 | 543-6]] 33 | 417-0
| 549-9 || 58 | 511-2 30 25-22!) 32 | 508-2]! 33 | 417-9] 18 13 || 0 06:06 || 2 | 541-2]| 3 | 414-2
|| 543-4] 3 | 518-0 45 25-94|| 47 | 533-9]] 48 | 411-6 -|—— — er
548-6 || 13 | 523-8 51 25-09 || 52 | 535-41] 53 | 408-71 19 5 0 | 25 08-46] 2 | 530-7|| 3 | 443-5
}) 543-1] 3 | 573-1] 16 23 0 24-:12|| 2 | 528-1]] 3 | 411-3 20 01-09 |} 22 | 545-0]/ 23 | 443-6
|| 539-2 13 | 574.3 10 21-50 |} 12 | 529-5]] 13 | 410-4 30 02-45 || 32 | 546-21] 33 | 444.0
i} 535-3 || 18 | 585-3] 17 O 0 19-14|| 2 | 526-5]| 3 | 422-5119 6 0 06-26|| 2 | 541.3]| 3 | 441-3
547-5 || 23 | 586.4 — ——— | —
549-5] 28 | 582-9] 17 6 0 | 25 11-28} 2 | 542-71 3 | 461-01 22 8]! O | 25 02-59] 2] 545-3]| 3 | 443-7
550-1]| 33 | 583-4 * 42 13-16]] 43 | 534-8 || 44 | 480-5 | 10 | 24 59-39 ]] 12 | 552-9]! 13 | 443-0
550-8 || 38 | 585-9] 17. 7 0 09:57 ;| 2 | 536-1]] 3 | 512-9 20 | 25 01-01 |] 22 | 549-1 || 23 | 445-0
544-5) 43 | 594-3 *! 61 25 07-10|| 7 | 525-3]| 8 | 535-6] 22 9 0 06:50 || 21 543-6|| 3 | 444-1
546-9) 48 | 593-5 10 | 24 58-55]! 12 | 533-3]] 13 | 528-0 EF _—_—.
545-7 || 53 | 594-9 15 | 25 02-40|| 17 | 535-8 || 18 | 527-9] 24 8 O | 25 05-11]/ 2 | 537-2]| 3 | 455-6].
538-1] 3 | 600-6 20 | 25 04-86 10 | 24 59-12]} 12 | 551-0]| 13 | 451-9
540-3] 8 | 600-6 25 | 25 05-00]] 27 | 536-8]| 28 | 571-9 15 | 24 57-34]|.17 | 563-3]/ 18 | 448-1
537-8] 18 | 607-5 30 | 24 59-73 || 32 | 530-5|| 33 | 554-6 20 | 24 58-92|| 22 | 564-4|| 23 | 446-8
537-7 || 28 | 606-9 35 | 24 59-17]|| 37 | 536-0]| 38 | 532-7 25 | 25 00-53 || 27 | 561-4|| 28 | 445.5
i 533-1|| 38 | 616-4 40 | 25 01-11] 42 | 533-9] 43 | 519-1 30 02-55 || 32 | 559-4|| 33 | 444.9
45 | 25 01-07 || 47 | 527-4]] 48 | 516-2 40 04-17 || 42 | 543-3]| 43 | 444.6
| 533-2]! 58 | 620-3 50 | 25 00-18]| 52 | 524.4|) 53 | 515-3] 24 9 0 02-01] 2 | 540-7]| 3 | 444.4
| 532-311 3 | 618-8 55 | 24 57-42]] 57 | 528-7] 58 | 514-1 30 05-58 || 32 | 549-0]} 33 | 444.4
i} 533-9) 8 | 616-2117 8 0 | 24 58-82]| 2 | 526-1]| 3 | 516.8] 24 10 0 04-51]| 21 538-0] 3 | 444.1
i) 534-2 || 18 | 607-3 5 | 24 57-56|| 7 | 528-2)) 8 | 515-4 —|———. — |—— —
533-7 || 38 | 591-0 15 | 24 55-33)] 17 | 526-8]] 18 | 518-3] 26 11 0 | 25 03-57]] 2 | 550-6]|| 3 | 394.4
| 550-7 || 48 | 576-1 30 | 25 02-25 || 32 | 521-7|| 33 | 509-7 15 04-41 || 17 | 552-4]| 18 | 393.4
538-0] 53 | 578-4 *| 50 07-07 || 52 | 521-7]|| 53 | 503-0 30 02-48 || 32 | 566-1]] 33 | 384.2
} 536-1] 58 | 572-3 56 08-55 || 57 | 524-3]| 58 | 501.7 40 03-87 || 42 | 558-9 || 43 | 384.0
526-7|| 3 | 578-64 17 9 0 07-32|| 2 | 522-3] 3 | 502.9] 26 12 0 02-86]| 2 | 543-5]| 3 | 388-1
526-1]| 8 | 583.2 *| 6 02-12!) 7 | 531-5/| 8 | 499.4 30 07-78 || 32 | 543-9]| 33 | 391-1
) 531-4] 13 | 579-3 11 04-21 || 12 | 538-4]| 13 | 484.9] 26 13 0 08-34} 2 | 547-1|| 3 | 389-1
534-1] 18 | 572-6 15 O7-87 elm 535-71) 18) | 471-0, ———— —— —
528-8 || 23 | 566-2 20 04-39 || 22 | 531-7|| 23 | 464-7] 27 11 0 | 25 02.20|| 2 | 541-0] 3 | 403-7
i 528-6) 28 | 561-9 25 09-47 || 27 | 530-7]| 28 | 461-2 10 03-16 || 12 | 541-7]) 13 | 403-3
531-4|| 33 | 559-9 35 09-49 || 37 | 528-6]! 38 | 458-8 25 04-17 || 27 | 543-7]| 28 | 402-2
533-5 || 48 | 546-6 50 06-57 || 52 | 536-7|| 53 | 459-2] 27 12 0 05-92 || 2 | 540-9]] 3 | 401-6
’ BIFILAR. k&—0:000140. BALANCE. &—=0:000010.
* See notes on the Aurora Borealis, after the Extra Observations of Magnetometers.
IAG. AND MET. oBs. 1845. oF
|
|
|
114 EXTRA OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 27—DECEMBER 3, 1845.
Gott. Gott. Gott.
Mean DECLINATION. A ae ae Eee Mean DECLINATION. a ede reese 3 Mean DECLINATION,
Time. . Time. , Time.
ad. h. | Min.| ©o » Min. | Sc. Diy. || Min. |Mic. Diy.J 4d. h. || Min.| ° 7” Min. | Se. Div. |} Min. | Mic. Div.J da. hb.
27 19 0 | 25 15-34 2 | 548-1 3d \aers 3 5 || 16 | 24 56-67/|-16 | 635-8 35 Ts
10 12:04} 12 | 559-2|| 13 | 368-7 17 | 24 55-67 || 17 | 641-3 || 17 | 768-0
20 08-90 || 22 | 557-0|| 23 | 368-0 18 | 644.6
40 08-25 | 42 | 555-3] 43 | 370-9 19 | 653-6 || 19 | 757-3
27 20 0 09-08 2 | 554-7 3 | 372-1 20 | 25 02-55|| 20 | 660-+ || 20 | 760-4
—|—— (out |of field)|| 21 | 763-4
Zu, 0 | 25 05-05 2 | 541-1 3 | 429-8 22 14-26 22 | 763-5
30 06-66 || 32 | 542-0 || 33 | 428-9 23 | 647-
2 1183 0 06-86 2 | 542-5 3 | 429-7 24 32-39 || 24 |611-1 |} 24 | 730-1
2D 32-26 || 25 | 588-1
7 Al? Ope25. Toa! 2 | 553-4 3) | 423-8 26 1578-5 || 26 | 711-6
10 16-35 || 12 | 555-1 || 13 | 421-2 27 23-54 || 27 | 571-8
20 13-46 | 22 | 558-6]} 23 | 415-2 28 19-58 || 28 | 573-3 || 28 | 739-8
30 10-16 || 32 | 561-7]| 33 | 413-5 29 | 13-16 || 29 | 564-1 || 29 | 746-7
40 09-56 | 42 | 559-9 ]) 43 | 411-3 30 | 07-64 || 30 | 569-7 || 30 | 745-2
50 07-31 || 52 | 559-5 || 53 | 412-0 31 |583-5 || 31 | 744-5
218 0 07-17 2 | 556-6 3 | 413-1 32 07-44 || 32 | 590-3
15 08-08 || 17 | 554-3 || 18 | 415-1 33 06-23 || 33 |597-5 || 33 | 736-1
2 19 0 10-13 2 | 557-4 3 | 413-8 34 09-02 || 34 | 616-4 || 34 | 721-3
a5) 16-48 || 35 | 632-9 || 35 | 703-9
3.4 0 | 25 20-43 2 | 544-6 3 | 670-9 36 30-94 || 36 | 633-4 || 36 | 683-8
10 13:70 | 11 | 539-3 || 12 | 674-6 37 | 25 50-83 || 37 | 616-4 || 37 | 660-0
15 12-11} 17 | 543-3 || 18 | 657-8 38 | 26 03-88 || 38 |589-2 || 38 | 637-2
20 16-43 | 22 | 541-5]) 23 | 676-5 39 | 26 13-31 ]] 39 | 551-3 || 39 | 624-6
25 16-65 || 27 | 545-6]| 28 | 738-1 40 | 26 15-39|| 40 |532-2 || 40 | 629.2
29 | 551-4 41 | 26 11-76|| 41 |523-6 || 41 | 690-5
30 02-93 || 31 | 563-5 | 42 | 26 02-37 || 42 |509-8 || 42 | 718-2
32 | 582-9] 33 | 729-3 | 43 | 25 36-49]| 43 | 562-7 || 43 | 762-5
34 | 578-2 44 24-86 || 44 | 642-7 || 44 | 802-4
ao 18-40 35 | 708-3 45 21-90 || (out |of field)|) 45 | 845-2
36 | 573-7 | 46 18-08 46 | 877-1
of | O7 1-9) BS || F215 47 11-57 47 | 914-9
39 | 565-5 48 09-08 48 | 941-4
40 15-74 49 09-15 49 | 954-4
41 13-43 || 41 | 558-0 *!| 50 08-95 || 50 | 642- 50 | 954-5
42 11-52 || 42 | 556-1 || 43 | 762-9 51 10-00 || 51 | 630-8
44 | 549-9 52 07-27 || 52 | 620-8 || 52 | 944.2
45 13-22 45 | 754-2 53 04-53 || 53 | 622-4 || 53 | 935-3
46 16-68 || 46 | 540-2 54 05-58 || 54 | 621-9 || 54 | 928-4
47 17-15 || 47 | 530-6|| 48 | 765-6 55 07-72 || 55 1613-6 || 55 | 914-2
49 | 530-1 56 10-09 || 56 | 599-4 || 56 | 901-7
50 07-64 50 | 767-6 57 07-74 || 57 | 587-0 || 57 | 891-6
51 05-99 || 51 | 531-2 58 06-27 || 58 |575-9 || 58 | 883-7
52 04-58 || 52 | 530-9 || 53 | 759-0 59 02-39 || 59 |571-9 || 59 | 876-8 Bis wr
04 | 538-0 3° 6 0 | 25 00-48 0 | 565-1 0 | 871-0
BY) 04-44 55 | 756-1 * 1 | 24 57-07 1 | 559-8 1 | 866-3
56 | 537-5 2 59-19 2 | 565-2 2 | 859-5]
| O¢ 04-21 || 57 | 537-5 || 58 | 749-2 3 54-68 3 | 568-8 3 | 847-1
| 59 | 542-7 4 55-24 4 |575:8 4 | 827-7
3) 15) 0. 04-41 0 | 744-2 5 | 24 58-99 5 | 586-7 5 | 814-2}
1 Soler 6 | 25 03-84 6 | 592-5 6 | 802-4
| 2) 553-34 3 | 723-2 [a cA 08-68 || 7 |595-3 || 7 | 798-4]
| 4 | 560-0 8 13-36 8 | 592-2 8 | 798-0
Be 14-44 6 | 559-2 5 | 712-4 9 16-48 || 9 |579-6 9 | 798-0}
| 7 | 558-0 8 | 718-5 10 15-17 || 10 | 576-0 || 10 | 803.4
8 | 13-81 9 | 584-0 1] 09-93 | 11 |579-9 || 11 | 821-4
10 | 16-32 || 10 | 583-8 || 11 | 736-5 12 02-45 | 12 | 594-1
12 | 592-5]| 13 | 753-2 | 13 00-84 | 13 |603-9 || 13 | 826-0
13 12-04 | 14 | 603-5 14 02-45 | 14 | 604-6 || 14 | 820-7
14 | 25 06-73 15 06:59 | 15 | 606-6 || 15 | 813-9
15 | 24 58-25 || 15 | 619-8 16 10-23 | 16 | 607-1 16 | 808-8
BIFILAR. k=0:000140. BALANCE. k=0-000010.
* See notes on the Aurora Borealis, after the Hxtra Observations of Magnetometers. a
Dec. 34 7 2m, Arms of the bifilar torsion circle turned from 110° 165 to 107° 3’.. The observations of the bifilar, between 75 2™ and 48% |||.
have been corrected to the original torsion circle reading. See Introduction, p. xxxii. Ve
#7
EXTRA OBSERVATIONS OF MAGNETOMETERS, DECEMBER 3, 1845. 115
Gott. BIFILAR BALANCE Gott. BIFILAR BaLAaN
eee: aa, Mean DECLINATION. Corrected. Corrected. | Mean DECLINATION. Corrected. Ohereaee
Time. Time.
Se. Div. d. — Min. “1 4 Min.| Se. Div. || Min. | Mic. Div. d. h. || Min. be if Min. } Se. Div. || Min. | Mic. Div.
603-6 3 7/1 18 | 25 12-11]| 18 | 559-5]| 18 | 829-57 3 8 | 19 | 24 50-85]) 19 | 551-4]| 19 | 833.5
603-9 19 12-16 || 19 | 570-9/| 19 | 835.4 20 45-54 || 20 | 531-8] 20 | 828.75
603-8 20 07-71 || 20 | 580-1 |} 20 | 845.7 21 42.78 || 21 | 520-2] 21 | 818.2
605-9 21 02-42 || 21 | 604-4|} 21 | 859.4 22 38-06 || 22 | 516-9}; 22 | 808.8
615-7 92 02-52 || 22 | 620-0]} 22 | 861-5 23 36-11 || 23 | 513-1]| 23 | 800-5
616-9 23 05-22|| 23 | 627-3|| 23 | 857-3 24 31-39 || 24 | 509-4 || 24 | 786.7
621-4 24 10-27 || 24 | 629-0]) 24 | 842.1 25 28-87 || 25 | 554-1|| 25 | 783-2
627-2 ¥| 25 16-48 || 25 | 628-9 || 25 | 822.9 26 | 608-1/| 26 | 792-2
628-4 26 25-06 || 26 | 639-8 || 26 | 811-0 27 28-72 || 27 | 615-3]| 27 | 793-2
641-7 27 26-23 || 272) 606-6 || 27 | 804-0 28 29-54|| 28 | 597-4]| 28 | 785-5
639-2 28 15-98 28 | 791-6 29 24-03 || 29 | 595-7 || 29 | 785-3
630-3 29 10-72 || 2924 657-1 || 29 | 789-1 30 19-10 || 30 | 615-11] 30 | 793-2
606-0 30 32-96 || 301} 615-2|| 30 | 768-6 31 19-94] 31 | 619-8|| 31 | 778-3
579-8 31 26-10|| 31 | 642-8) 31 32) 37°53 || 32 | 633-1 ]| 32 | 750-1
568-6 32 | 25 59-45 || 32 | 637-8]| 32 | 720-5 33 51-93 || 33 | 652-3 || 33 | 782-3
586-5 33 | 26 10-62/| 33 | 576-2|| 33 | 669-6 34 44-79 || 34 | 624-6]| 34 | 816-0}
602-4 34 | 26 24-71] 34 | 534-7 35 33-29 || 35 | 602-3 || 35 | 832-8
619-8 35 | 26 22-59/|| 35 | 486-6|| 35 | 706-8 36 | 24 20-83)! 36 | 602-1 || 36 | 809-3
647-5 36 | 25 47-35] 36 | 534-7|| 36 | 834-0 37 | 623-8]| 37 | 736-5]
660: 37 30-11 ]| 37 | 597-5|| 37 | 882-8 38 | 25 01-88 |) 38 | 650-6] 38 | 702-3
of field) 38 23-27 || 38 | 640-3 || 38 | 885-8 39 05-69 || 39 | 628-3|| 39 | 760-0}
39 24.35 || 39 | 634-8]) 39 | 881-5 40 09-73 || 40 | 607-4|| 40 | 758-5
40 20-38 || 40 | 644-3]| 40 | 854-2 4] 09-02 || 41 | 573-4]] 41 | 782-8
613-3 41 28-79 || 41 | 656-1]| 41 | 828-0 42 | 25 01-78/|| 42 | 536-5|| 42 | 790-0
550-8 42 23-21 || 42 | 652-5 || 42 | 817-2 43 | 24 49-41|) 43 | 528-4]! 43 | 785-8
533-9 43 37-33 || 43 | 627-7 || 43 | 843-3 44 50-98 || 44 | 521-4]] 44 | 780-6
§34-1 44 27-31 || 44 | 602-3 || 44 | 858-6 45 42-51 || 45 | 503-4 ]| 45 | 784-0
544-6 45 27-10}| 45 | 591-8]| 45 | 855-4 46 37-83 || 46 | 489-7 || 46 | 761-2
575-1 46 27-91 || 46 | 503-7|| 46 | 834-2 47 | 482-3 || 47 | 727-7
601-4 47 25-93 || (out lof field) 47 | 796-5 48 39-18 || 48 | 500-0]] 48 | 722-1
611-3 48 20-99 48 | 771-4 49 37-12 || 49 | 507-8 || 49 | 720-2
604-0 49 18-81 49 | 769-2 50 41-57 || 50 | 505-6] 50 | 682-5
591-8 50 16-48 || 50 | 410-6]| 50 | 774: 51 43-92 || 51 | 492.4]| 51 | 659.4
574-4 51 12-82 || 51 | 420-9]| 51 | 781-3 52 | 481-6]] 52 | 632-5}
577-2 52 08:95 || 52 | 4386-2 || 52 | 795.2 53 47-08 || 53 | 482-4]| 53 | 615-6
598-0 53 05-72 || 53 | 462-3 || 53 | 797.3 54 47-42 || 54 | 483-6] 54 | 600-0
614-6 54 04-98 || 54 | 499-2] 54 | 796-7 bys) 51-56]! 55 | 487-3 || 55 | 565-6
646-7 55 04-91 || 55 | 524-9|| 55 | 795-3 56 | 24 59-56|) 56 | 484-8] 56 | 556-1
f field) 56 03-43 || 56 | 543-8 |) 56 | 797-0 57 | 479-6|| 57 | 551-8
57 02-55 || 57 | 561-7|| 57 | 798-2 58 | 25 05-38]| 58 | 482-7|| 58 | 536-6
58 03-77 || 58 | 571-0]| 58 | 800-6 59 10-33 || 59 | 490-41] 59 | 537-0
59 03-50 || 59 | 586-7 3.9 0 08-88 0 | 488-3 O | 552-2
BS 0 02-96 0 | 597-1 0 | 808-8 1 | 483-4 1 | 564-6
wil 1 01-27 613-2 1 | 790-2 2 | 477-3 2 | 559-9
2 00-94 2 | 621-0 2 | 814-1 3 | 471-2 Bi |} Gallet)
3 | 623-2 3 | 816-5 4 04-14 4 | 470-5 4 | 552-5
4 01-34/| 4 | 625-0|| 4 | 816-5 5 04-44 5 | 472-1 5 | 562-0
a 00-84|| 5 | 625-0 6 | 476-7
713-7 6 00-40|| 6 | 649-5|| 6 | 817-8 fi 02-59|| 7 | 483-1]| 7 | 567-1]
700-3 a 01-34 || (out jof field)|| 7 | 810-9 8 | 488-3 8 | 563-5
704-6 8 05-22 8 | 798-2 ¢) 04-64 9 | 493-8
685-0 9 05-82 || 9 | 647-0|| 9 | 792-0 10 06-16
672-3 10 02-62 || 10 | 645-7 || 10 | 797-7 12 10-47 || 12 | 497-0]| 13 | 560-9
657-3 11 | 25 02-69)| 11 | 631-5|| 11 | 802-9 14 09-26
634-9 12 | 24 57-31]| 12 | 611-9) 12 | 815-5 | 15 | 25 05-69 || 17 | 489-0] 18 | 568-3}
605-2 13 57-31 || 13 | 599-7 || 13 | 827-7 | 20 | 24 56-74 || 22 | 490-9|| 23 | 547-2
578-1 14 53-54 || 14 | 587-5]|| 14 | 839-9 | 25 56-74 || 27 | 488-0 || 28 | 534-1
557-2 15 | 588-7] 15 | 844-1 | 30 59-32 || 32 | 494-6] 33 | 536-8]
549-0 16 | 576-5|| 16 | 837-1 | 35 | 24 57-98|| 37 | 488-2] 38 | 531-3]
547-0 il7¢ 51-25)| 17 | 569-7 40 | 25 01-21 || 42 | 514-4}} 43 | 531-2
548-3 18 49-61 || 18 | 564-0 || 18 | 836-7 45 13-05 || 47 | 518-3 || 48 | 571-0
BiFILaR. k=0-000140. BALANCE. k=0:000010.
See notes on the Aurora Borealis, after the Hztra Observations of Magnetometers.
ec. 34 7h 30m, The bifilar magnet moving backwards and forwards with great rapidity.
ec. 3474 48m, Arms of the bifilar torsion circle turned back from 107° 3’ to 110° 23/-0.
47™ have been corrected (by — 5:5 sc. div.) to the original reading of the torsion circle.
ec. 32 8h 37m. The declination magnet moved westwards from 36™ to 37™.
The observations of the bifilar from 74 48™ till
See Introduction, p. xxxii.
ExTRA OBSERVATIONS OF MAGNETOMETERS, DECEMBER 3—13, 1845.
1 BO
Ba So ES SS 2S Se Se > So So SS Se St
es
116
}
le ; BIFILAR BALANCE Gait. BIFILAR BALANCE Gott.
ean BCLINATION:: | ‘Corrected. Corrected. wees Boe AON Corrected. Corrected. | Mean DECLINATI
Time Time. Time.
don wh, Min. 7 ia Min. | Se. Div. || Min. | Mic. Div. ids th, Min. °. £ Min. | Se. Div. |} Min. | Mic. Div. d.° th. Min. =
3 9 || 50 | 25 02-62] 52 | 507-7|| 53 | 567-3] 3 13 7 | 484-5 8 | 484-5 3 14
595 06-59 || 57 | 521-6] 58 | 580-2 9 | 492-1
3 10 0 08-45 2 | 484.8 3 | 560-7 10 | 24 52-40] 11 | 491-9
5 12.95 7 | 467-6 8 | 554-8 12 | 490-1]) 13
10 09-12 || 12 | 476-9 || 13 | 566-8 15 50-04} 17 | 501-6|| 18
15 | 25 04-14|| 17 | 481-8]] 18 | 586-9 20 45-98 || 22 | 502-1 || 23
20.| 24 54-65 |) 22 | 511-9|| 23 | 600-0 25 49-17 || 27 | 514-4|| 28
25 52-20 || 27 | 502-0}; 28 | 600-0 30 52-70 || 32 | 500-0} 33
30 50-22 || 32 | 507-3 || 33 | 583-8 34 | 488-7
30 49.74 || 37 | 527-0 |] 38 | 572-5 30 53-27 || 37 | 477-8 || 39
40 | 24 57-37 || 42 | 533-7 || 43 | 568-5 40 54-45 || 42 | 481-9}} 43
45 | 25 03-81 || 47 | 520-4 || 48 | 571-9 45 53-88 || 47 | 485-9 || 48
50 | 25 01-34 || 52 | 489-8] 53 | 561-3 50 54-18 || 52 | 485-3 || 53
55 | 24 57-78 || 57 | 485-7 || 58 | 539-6 55 55-80 || 57 | 474-8 || 58
Ba Gt 0 57-34 2 | 493-7 3 | 529-5] 3 14 0 53-88 2 | 464-7 J
al 55 52-33 7 | 486-7 8 | 526-2 5 53-20 7 | 459-6 8
10 53:38 || 12 | 500-6 |] 13 | 530-9 10 50-92 || 12 | 472-0}| 13
15 53-88 || 17 | 504-8 || 18 | 536-1 15 49-51 || 17 | 477-2}) 18
20 57-28 || 22 | 498-5 || 23 | 540-9 20 49-37 || 22 | 473-4|| 23
25 | 24 58-82)| 27 | 495-9] 28 | 537-5 24 | 482-6
30 | 25 00-40]| 32 | 506-7 || 33 Pa 25 | 24 56-30] 27 | 471-2|| 28
35 | 25 01-72|| 37 | 496-4]| 38 | 537-9 29 | 474-8
40 | 25 57-51 || 42 | 468-1 || 43 | 486-6 30 | 25 03-20]| 32 | 483-3 || 33
45 | 25 02-08 ]) 47 | 438-4) 48 | 452-7 35 | 25 05-32] 37 | 470-0] 38
50 | 25 02-69 ]} 52 | 454-3]! 53 | 457-3 | 39 | 462-3
55 | 25 04-95 |] 57 | 460-9 || 58 | 520-4 40 | 25 01-41 || 41 | 448-1
a0 12 5 | 24 43-52 7 | 533-2 8 |Paliien 42 | 451-8]) 43
10 | 24 44-50|/ 12 | 541-8} 13 | 505-5 44 | 456-9
25 | 24 57-07|| 27 | 516-2 45 | 24 58-25] 46 | 463-0
40 | 25 03-97 || 42 | 461-9|| 43 | 509-7 47 | 471-0}! 48
50 | 24 54-59]! 52 | 477-0]] 53 | 514-6 49 | 477-9
aus 0 50-93 2 | 457-7 3 | 489-4 50 | 25 00-00]} 51 | 488-8
all es 50-95 6 | 476-4
Birinar. k=0-000140. BALANCE. k=—0:000010.
* See notes on the Aurora Borealis, after the Extra Observations of Magnetometers.
EXTRA OBSERVATIONS OF MAGNETOMETERS, DECEMBER 3—31, 1845.
BIFILAR
Corrected.
Min.
Sc. Div.
528-7
535-6
551-9
559°6
545-0
532-8
528-5
540-1
538-6
542-7
535-6
544-8
538-3
598-4
558-7
552-6
546-0
544-0
551-2
550-5
543-4
547-5
539-0
542-0
541-7
537-9
541-3
534.4
542-0
Min.
Gott. Gott.
. on - < ea Mean DECLINATION. ike aaa “ ae Mean DECLINATION.
Time. Time. |
Se. Diy. || Min. |Mic. Div.] d. h. Aue |S 4 Min. | Se. Div. || Min. |Mic. Diyv.} d. h. Min. } ° é
-479.4|| 53 | 414-4] 13 4 || 50 | 25 12-04] 52 | 514-41) 53 | 492-3] 15 9 0 | 24 46-21
478-7 ils) 5} 0 11-98 2aosa-2 3 | 492-8 5) 43-15
480-9}! 58 | 421-7 15 14-26 || 17 | 538-2], 18 | 492-6 10 43-29
“485-7 3 | 430-8 25 13-66 || 27 | 540-4]| 28 | 491-0 15 49-54
473-6 8 | 419-8] 13 6 5 06-32 6 | 541-0 7 | 494-6 20 | 24 59-53
479-7 || 13 | 402-2 30 07-40 || 32 | 520-7]) 33 | 506-8 25 | 25 04-17
477-8 || 23 | 384-9 35 | 25 01-54|| 37 | 508-9|| 38 | 517-1 30 04-04
489-6 || 28 | 370-9 40 | 24 48-36 | 40 02-32
492-3 || 33 | 363-2 41 47-69 || 42 | 533-1] 43 | 511-6] 15 10 0 05-62
497-6 || 38 | 361-3 44 | 535-5 | tortie Co 05-63
497-0 || 43 | 363-6 45 47:69 || 47 | 535-2 || 48 | 508-6 20 01-88
487-0 48 | 364-2 50 48-50 || 52 | 534-7 |) 53 | 509-5] 15 12 0 07-31
494.2 || 53 | 362-9 55 48-90 || 57 | 534-9]| 58 | 509-1 —_|—__—__—_
501-9!) 58 | 370-1 IBEW 0 48-45 2 | 543-9 3 | 504-1] 16 7 0 | 25 00-67
~611-0 3 | 383-1 b) 52-94 7 | 548-6 8 | 510-6 10 | 24 54-82
515-0 8 | 393-1 | 10 | 24 57-04 15 | 24 57-71
516-6 || 13 | 401-9 20 | 25 00-74 || 22 | 527-2]| 23 | 495-6 20 | 25 01-81
§12-2)| 18 | 418-2 45 06-90 || 47 | 527-3 |) 48 | 488-1 35 04:95
511-4/| 23 | 428-8] 13 8 0 | 25 05-85 PIES BR Boe 3 | 482-7] 16 8 0 02-93
515-3 || 28 | 432-1] 13 10 0 | 24 50-78 2 | 526-5 3 | 470-9 —||———|__——_
512-4|] 33 | 431-8 6) 48-77 7 | 529-8 8 | 468-5] 18 6 0 | 25 00-98
515-1 || 48 | 422-5 15 51-05 || 17 | 528-1]| 18 | 466-5 10 | 24 59-73
519-7|| 3 | 444-0 30 54-82 || 32 | 517-6 || 33 | 462-9] 18 7 0 | 25 08-77
|—— - 50 58-49 || 52 | 519-5 || 53 | 452-1] 18 8 0 | 24 59-83
543-1/| 3 | 485-1] 13 11 0 | 24 59.84 2 | 521-0 3 | 444-0 10 | 25 03-81
529-7'| 13 | 495-9 —|——|——_—_—__ || —_| —-_-—— 35) 05-32
519-3 | 18 | 502-3] 15 7 0 | 24 49.22 2 | 520-6 3 | 459-3] 18 9 0 06-95
024-2 | 23 | 499-3 5 49-15 7 | 520-3 8 | 461-1 =| ——|—_- —~—
532-0 | 28 | 497-7 10 49-88 }} 12 | 519-3 || 13 | 463-9} 31 9 0 | 25 00-53
535-9 | 33 | 494-7 20 54-75 || 22 | 523-4]| 23 | 465-4 10 00-13
537-4 38 | 492-2 30 | 24 59-46 || 32 | 529-6] 33 | 463-7 30 03-50
538-3 43 | 492-17 15 8 0 | 25 06-39 2 | 535-5 3 | 450-1] 31 10 0 07-31
BiFILAR. k=0-000140. BALANCE. k=0-:000010.
ec. 134 6h 20™,
lec 134 105 15m—_30™.
The instruments read nearly as at 6% 0™.
Magnets moving very little and steadily in one direction.
Evy
BALANCE
Corrected.
Mic. Div.
442-0
441-1
438-2
437-0
439-5
439-7
439-5
434-7
430-6
428-2
429-8
425-6
438-0
432-4
433-8
434-7
432-5
432-2
451-3
448-7
444-6
440-4
439-9
438-6
439-3
418-6
419-2
422-9
416-7
ec. 254 11" 20m. Declination magnet moved eastwards slowly and regularly from 0™. The magnets, especially the declination magnet, were
eady throughout the night.
| MAG. AND MET. oss., 1845.
|
118 Notes To THE Extra OBSERVATIONS OF MAGNETOMETERS, JANUARY 0—9, 1845.
NOTES ON THE AURORA BOREALES SEEN AT MAKERSTOUN.
d) Vhae an:
Jan. 0 15 10. The sky looks more milky to N. than in any other quarter. Aurora?
Jan. 16 5, Aurora to W.; faint and diffuse. Fog commencing; dense fog at 20™.,
Jan. 7 Aurora seen in Orkney.
9 10. Faint auroral band 8° high. 20™, Slight pulsations in the aurora,
iT
8 5. Fine auroral arch, about 10° altitude at the vertex.
8 15. Measured and found the summit of the arch 15°65 altitude, the one extremity meets the horizon at —
N. 45° E., the other about W. 13° N., but this extremity is so diffuse that the measure is but
rough.
8 35. The a nearly meets the horizon at NE. ; faint and diffuse to W. 55™. Triple arch; the middie
one has its greatest altitude 29° ; brushes. below the arches to NNE.
9 5. The aurora in a series of four arches, stretches across the sky from WSW. to ENE., crossing near
the zenith ; diffuse broad arches with dark strips of sky between. The E. extremity rises in
brushes a few degrees above the horizon.
9 19. Aurora in two arches, one passing 5° or 6° N. of zenith, the other 20° high; 40° of sky between the
arches. 24, The upper arch passes through the zenith ; faint brush to NNE. below the lower
arch. 29™, Faint portion of upper arch with the W. extremity visible ; lower arch breaking in
the middle, the two portions making a sharp angle with each other ; pencils below to N by E. |
34m, The western extremity of the upper arch has two branches, one passing 10° to S., the other
10° to N. of zenith; pencils to N by E.
9 42. Aurora bright to W. » passing 25° S. of zenith, terminating in a bright patch to E.; middle of W.
extremity of arch W. oo. S., of E. extremity of arch E. 18° N. Altitude of jawen arch 23°.
45. W. portion of upper arch 60° in length, split into two; lower arch bright to NE. 49™, Pencil risen
from W. 28° S. 51™, Three pencils from the same point ; patch of aurora, altitude of centre
76° above E. 14° N ; disappeared at 52™. 54™. The upper extremity of the W. pencils attains”
the altitude 29° above S. 24° W. 55™. Lower arch very steady and complete azimuths of thes
extremities W. 3° N., and N. 48° E.
56. Brushes to W. brighter, varying in intensity. Lower arch, altitude 24°, breadth about 4°. (The
measures of altitude of the summit of arches are always made i in the magnetic meridian, and the
highest portion of the belt is taken).
8, Western portion of the upper arch nearly extinct.
10 4. The lower arch has broken into a seried rank of pencils, very beautiful and of a bright light-green ;
a portion of a lower arch visible at the E. extremity; the whole of the arches consists of series
of pencils or brushes. 6™. A very luminous pencil to NNW., very bright to N. 7™. Bright to
NW. The pencils start up everywhere, moving both vertically and sideways ; generally they
are of a beautiful light-green, but some of the most vivid are tinged with red. The pencils rarely
if ever exceed 10° in length ; no long streamers seen. 8™. A patch to SW. ; the pencils below the
arch are now less distinct.
12. Auroral arch below quite diffuse; mass of streamers, not distinct. 13™, Faint patches cross near }
the zenith like a portion of the upper arch again.
13}. Meteor with reddish, sparky tail, from 37° to 27° of altitude above E, 35° S., shot nearly vertically |
down. |
15. The lower arch now an amorphous mass of patches. 153™. Arch forming, altitude 65°, disappearing |
immediately ; pencils to NE. |
16-17. Patch to ENE., 25° altitude. This patch, which has reappeared frequently, seems to belong to |
the highest arch. 183™. Portion of an arch nearly across the zenith, another to S. of zenith |
from W., as at first. 19™. Bright patches to NE. ;
20. Bright arch passes 10° SSE. of zenith, altitude of summit of lower edge 61° above SSE. 21™, Sum- |
mit of lower edge 56° above SSE. The lower arch to N. in one diffuse mass. |
. The arch passing to 8. of the zenith, has split into two portions ; the azimuths of the extremities of the |
lower portion are W. 33°S., and E.138° N. 24™. Streamer due W. , bright to W., streamer to N. |
25. The lowest edge of the arch to S. has the altitude of 37° above SSE. There has been a belt of — |
cirrous clouds from W. to N. throughout these observations.
10 30. Auroral arch to S., about 30° altitude; bright to SW. be
32. Still bright to SW., but the arch is nearly away. 386™. Bright patch on SW. horizon; aurora |
faint to N.; cirro-strati rising. |
40. Patches to SSW., 20° altitude, faint; aurora faint to N., with faint streamers below ; fainton SW. |
horizon ; cirro-strati rising to N. ce
55. Rapid pulsations and streamers.
11 3. Pulsations to an altitude of 50°.
bo
bo
tole
Notes To THE ExTRA OBSERVATIONS OF MAGNETOMETERS, J ANUARY 9—-24, 1845. 119
NOTES ON THE AURORA BOREALES SEEN AT MAKERSTOUN.
Gi. ey
Jan. 911 7. Streamers and pulsations from an amorphous massto N. 8™. Rapid pulsations ; aurora in patches
forming broken arches ; altitude of highest about 32°. 12™. Bright patch, with rapid pulsations,
to NNE., since last observation. 13™. Rows of streamers to N. 15™. Mass of faintish
streamers, with pulsations to NNE. A mass of cirro-stratus due N., altitude 10°, apparently sta-
tionary. 17™. Large amorphous masses pulsating, especially to NE. 23™. Nearly as at 17™,
: but not bright, occasionally brushes near horizon. 24™. Pencils to NNE. and NE.
| 27. Large mass, about 60° in length from NE., pointing to 10° S. of zenith; pencils occasionally to
: NE. 32™, Aurora diffuse, faint pulsations nearly to zenith. 35™. Pulsations like waves revolv-
: ing from NNE. 38™. A digitate mass to NE. 41™. The mass of cirro-stratus to N., like a
| black island lying in a sea of light, seems nearly stationary, its middle is about due N., and has
an altitude of 10°; thin cirri to NW.
52. Aurora rather diffuse, stretching from NNE. to W.; a faint, variable belt from W. to NE., altitude
50°, with lateral pulsations ; few pulsations in the body of the aurora.
12 0. Aurora on the whole brighter; patches to NE.; the mass of cirro-stratus still exists, but is more
spread out towards the NW.
9. A belt of nebulous patches stretches from W. to NE. through Polaris ; many patches in NW. quarter
of the sky, to altitude 55°; the principal part’ of the aurora is to N., very bright; one streamer
seen in the brightest portion of it; bright patches to NE.
11. Obscured to NNW. by cirro-stratus ; pulsations among the patches of aurora.
17. Patches appearing and disappearmg with great rapidity all over the N. portion of the sky as high
as the zenith ; they seem to spread from the NNE., where there are still many bright patches.
22. Aurora fainter; many bands stretching from NE. to W by S8., appearing and disappearing in a
: second or two, also many patches; the bands seem to have their origin in the NE., they seldom
attain nearer than 30° of the W. point of the horizon.
26. As before, the bands rather more persistant.
30. Much as before ; lateral pulsations to NE. among bright patches ; brushes.
39. A series of broken bands from NE. to altitude of 70°—90° above N.; not many pulsations.
44. <A faint belt can be traced from WSW. to NE., altitude 60° above NNW. ; aurora generally fainter.
13 4. An arch of very faint light stretching from NE by N. to W by S., altitude 75°: streamers and
bright patches to N. near the horizon; most of the aurora is now obscured by the cirro-stratus.
10. Cirro-stratus and cirri over the aurora, and in no other part of the sky.
15. No pulsations can be perceived; aurora fainter,
26. Bands from NE by N. through 10° SSE. of zenith to SSW., composed principally of patches. 31™,
The same; some of the streaks seen to 60° above SSE. The aurora seen through clouds to N.
40. Faint streaks and patches over N. sky, and to 15° S. of zenith.
14 9. Scarcely any of the aurora can now be seen for clouds ; no patches are seen near the zenith.
21. Patches and bands of light; a thin haze seems spreading over the sky, which probably diminishes
the intensity of the auroral light ; the clouds to N. obscure the aurora there.
Jan. 19 12 0. Sky nearly coveredwith woolly cirri or cirrous haze; an indistinct lunar halo seen; conceived there
was an auroral light to N., but was not certain, on account of the moonlight (B.) When the ob-
server (H.) went to the Observatory at 13", he found the magnets considerably disturbed.
22 10. Cirri rising in tufts from NNW., and radiating from that point, with the curls of the tufts on all sides
turned towards the magnetic meridian ; very dense on the horizon, like a mass of auroral light,
and in single tufts higher.
Jan. 20 11 10. Large corona when the moon is covered by thin watery cloud, and small bluish corona in the appa-
rently pure sky. Auroral light to N.; doubtful, from moonlight. Aurora seen in Orkney.
(See Meteorological Notes on growing cloud.)
Jan. 21 8 10. Large lunar corona. Auroral light to N.; doubtful, from moonlight.
Jan. 23 15 34. A break in the clouds, to N., shews auroral light.
Jan. 24 7 46. Cannot detect any appearance of aurora, probably on account of the bright moonlight.
11 10. Cirri in thin bands, much like those described previously (Observations for 1844, Nov. 28, page 325),
as apparently connected with aurora.
13 10. There is a great similarity in the appearance of the filmy cirri with that of aurora; the cirri shoot
up from about NW by N., (a few degrees from the magnetic north ;) bands of nearly stationary
black clouds are lying on the NNW. horizon in a white light, just as in appearances of aurore.
There seems little doubt that the light on the NNW. horizon is a combination of this cirrous cloud
and the aurora. The bands, which reach as far as the zenith, move very slowly; at some times it
was imagined that they were pulsating; this, however, was doubtful, a slight change of the direction
of vision being sufficient, with the moonlight, to give an unsteady appearance to the filmy bands.
LS SSS SSS SSS SSS SSE SEES SESS YSERA SORTS ASRS SY 7 SIRE
120 Notes ro THE ExtTRA OBSERVATIONS OF MAGNETOMETERS, J ANUARY 26—FeEpRUARY 1, 1845.
NOTES ON THE AURORA BOREALES SEEN AT MAKERSTOUN.
Jan.
Jan.
Jan.
Jan.
Feb.
a ah.
26 13
14
15
12
25.
10.
10.
20.
Very thin cirri radiating in bands, as on the 24th, from NW by N. and SE by S., forming a very
irregular halo round the moon; the cirri seem to spring in tufts from the border of the halo, in
the direction of the radiations, namely, from SE by S.
The halo rather better defined, although still irregular. The colours of the interior corona are also
more distinct. There may be auroral light to N., but if so, it is completely masked by the ei
and moonlight.
Cizri much as before, very like a bank of auroral light from NW by N., eastward. There is some-
thing decidedly peculiar about these cirri. At 14" 10™ observed towards SW., altitude 45°, a series
of parallel narrow bands of irri, some nearly 30’ broad; watched them very attentively, in order
to see if any pulsations occurred ; could not see that they moved excepting longitudinally ; at 14m
they had arrived at the moon and broken the halo into bands; they had thus moved bodily about
40° in less than 4™. It is conceived that the length of the bands are increased as well as their
number. It is to be remarked, that these bands did not lie in the same direction as the other
cirrous streaks, the latter le nearly in the magnetic meridian, the bands lie nearly east and west.
The bands from NW by N. span the sky in complete arches. Were the cirri not seen plainly
near the moon, and the connection traced to the N., the appearance on the N. horizon would be
noted wnhesitatingly as the common homogeneous bank of auroral light.
Halo gone at present, but cirrous bands nearly as before. A black patch of cirro-stratus near the
NW. horizon; this was also noticed at 13". 15™. It has been noticed throughout, that the decli
nation magnet moves uregularly, by fits or jerks, the vibration often ceasing, or nearly so, suddenly,
30™. W. portion of halo visible; many patches of cirro-stratus or scud risen on NW., N. ant
SW. horizon. 45™. A rather thicker cirrus coming up to the meridian, moving slowly, with
patches of cirro-stratus. The clouds continued moving up more quickly, becoming more and
more dense till 16" 10™, when the moon was totally obscured, though thin cirri were still seen to E,
Light seen through the clouds to N.
Auroral light seen through the clouds to N.
As far as the aurora can be seen it appears to be quite amorphous ; no pulsations or streamers.
Auroral light to N. 30™. Auroral light becoming fainter.
There seems a faint auroral light among the haze to N., but it is doubtful.
The magnets having exhibited some slight irregularities in their motions, the observer looked to see
if he could detect any appearance of aurora, the sky being perfectly clear, but he could not;
having again entered the Observatory for a minute, he returned at 9™, and found the sky suddenly
(in a minute or so) turned milky, with the exception of a streak of blue, reaching from SW. to-
wards NE., another streak meeting it near the zenith (from NE. ?) at the same time it became much
lighter to N. and especially to NE. There was now without doubt aurora, with faint pulsations,
A most strange aurora; one portion extends in a bank along the horizon from SW. to NE. to am
altitude of 45° above WNW., another similar portion to E.; pulsations all round, especially te
SE. ; just now streaks with the bluish sky to E., altitude 45°.
The western bank brightest on the whole; there is a sort of radiation from SW. and NE. ; six-tenths
of the sky covered by aurora, and as much to S. as to N.; at times no pulsations visible, but the
aurora seems to extend like a thin haze over the deeper blue of the sky ; the general position of the
great boundaries are pretty permanent for some time.
Very bright pulsation ; meteor shot rapidly towards the zenith from 60° altitude above NE. ; streaks
to E. still bright; patch to SSW. with pulsations ; all the stars distinctly visible through the
aurora,
Much as before ; the Pleiades are immediately out of the W. bank, as they have been throughout the
whole time.
Sky nearly covered with the milky aurora; bank of cirro-stratus during the whole period to
SE.; no other clouds visible ; streaks of blue sky to NW; dark space throughout the observa- |
tionsin N. horizon. The edge of the cirro-stratus in E. and S. horizon, seems to be rather brighter |
than the rest, just like the clouds in the N. horizon during aurora. y
The observer watched the appearance of this aurora till 13" 10™. In its general features it con- —
tinued much as before ; a rather wide streak of sky to NW. noticed at 50™ (which, it is belie
existed before that minute), passing immediately below the Pleiades seems very permanent in its
form and relation to the bank of aurora, The W. bank was on the whole brightest, although very
variable in its brightness throughout. The luminosity of each mass was rather uniform, excepting —
a patch to SSW. which was much brighter than the surrounding aurora. The dark space on the ~
N. horizon mentioned at 50™, was something like that under the usual auroral arch, but ill formed, —
and not easily separated in some places from the aurora.
Notes To THE ExTRA OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 5—7, 1845. 121
NOTES ON THE AURORA BOREALES SEEN AT MAKERSTOUN.
The appearance, as noted at 9™, was much the same as if sheets of the very thinnest vapoury haze
had been suddenly illuminated by a rising moon. The stars were as well defined in the aurora
as in the dark spaces unoccupied by it, the only difference consisting in the grownd on which they
were seen. The moon did not rise for several hours after this, but there was not the slightest
doubt as to the auroral character of the phenomenon. (B.
[All the remarks on aurora are given almost verbatim as they were noted during the phenomena.
The above is a description of a phenomenon which I have named milky aurora, interesting for its
peculiar character. It was observed on this occasion for the first time, but has been several times
observed since, and always during very minute magnetic irregularities ; in several instances it
covered the sky uniformly, giving an unusual degree of luminosity to a starlight night. One
distinctive difference between this appearance and that of thin cirrous haze, is the clear definition
of the stars; stars within the ordinary phenomenon of auroral sheets are-seen exactly as if ob-
served through a telescope with an illuminated field; this is the case during milky aurora; in
haze, however, the stars become blurred even when the haze is thinnest. October 1848. B.]
‘eb. 5 8 5. Bank of auroral light to NNW. like strong twilight.
30. Aurora brighter, and extending rather higher.
9 10. Auroral light in form of a segment of a circle, summit of the arch in the astronomical meridian.
30. As before.
10 10. Aurora quite steady, not so bright as last hour.
11 10. Faint auroral light behind the clouds to N.
12 10. Faint aurora in form of an arch, altitude 5°, crown in the magnetic meridian.
20. Arch measured, azimuths of extremities N. 273° E. and N. 67° W., centre of arch N. 20° W., altitude
of summit 8°.
38. Streamers shooting out from the arch all along. 44™. Streamers fainter and fewer; one rather
bright to NNE.
45—50. A low auroral arch, quite black below, with bright persistent streamers to (WNW.?) The sky
decidedly blacker immediately without the arch than at a distance from it.
49. One very vivid pencil to NW. moving eastward, disappeared before 51™,
54. A bundle of pencils to NW. moving E., no other pencils along the arch. 57™. Arch faint, several
streamers breaking out in all parts of it.
13 4. Aurora altogether much fainter, one or two very faint streamers. 11™, Aurora brighter ; patches close
on horizon, like the tops of streamers from a lower arch ; arch broken up into pencils to NW., a
black streak of cirro-stratus there. 14™, Arch quite broken; a number of bundles of pencils ;
streak of cirro-stratus still to NW. ; shooting star to N., altitude 30°, moving towards N. horizon,
19m, The streak of cloud has disappeared; aurora quite amorphous, and much diminished in alti-
tude; masses of streamers interpsersed, none of them bright. 24™, Aurora fainter, a great
number of very faint streamers. 29™. Much as before, several small patches of cloud near N.
horizon ; after this the aurora gradually became fainter, and at 50™ could scarcely be distinguished.
The greatest altitude of the arch did not exceed 12°. The previous observations after 10 10m
were made by Mr Welsh at the Observatory; the following were made by myself at my own
residence, about 300 yards from the Observatory.
138 10—15. Archas before, altitude not above 6° or 7°, no streamer at 10™, black within the arch, afterwards
streamers from the same point as before, and, within the black, others rise all along the horizon ;
they shew what I could not observe before, several small black patches of (cirro-stratus ?) within
the black to (NW. ?) the blackish sky without the arch extends to 45° altitude, and is blackest in one
point. This cannot be a deception due to the effect of the adjacent light on the eye, since, when
the aurora is shut out from view, the blackness still subsists as before. The stars seem duller,
as if covered by a thin cloud in the black. The darkness seems however greater and more ex-
tended when the brightness of the streamers is greatest. The form of the external blackness is
much that of the arch, but, as mentioned, extends farthest beside the bright streamers. Ido not
remember to have observed this blackness so decided on any previous occasion, <A shooting star
was seen about 12 46™, and another about 132 12™, both moving rapidly (B.) See notes on rosy
beams seen at sunrise lying nearly in the magnetic meridian. Meteorological Notes, Feb. 5420".
jeb. 7 14 5, Cirrous clouds like cirrous haze cover the greater part of the sky, rendering the stars dim, especially
to S.
10. On amore careful examination the sky seems covered with the milky aurora, as seen on February
1st, thick cirrous haze obscures the stars to altitude of 45° from S.; they become more and more
distinct to zenith, where the appearance is milky. Faint Pulsations ?
MAG. AND MET. OBS, 1845. =
122 Noves to THE Extra OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 7—Marcu 7, 1845. —
NOTES ON THE AURORA BOREALES SEEN AT MAKERSTOUN.
den Hage
Feb. 7 14 15, Pulsations without doubt, the wedge of pure sky pointing nearly NNE. as on February 1st; fre~
quent pulsations to NE., and especially on the edges of the loose cirro-stratus to NE.
30. Very fine milky aurora; nearly as distinct as on February 1st, bright to W., with pulsations ; parallel
bars of dark and light sky, altitude about 45° from W., pointing nearly NNE.; pulsations all
round ; stars getting brighter to S.
40. Aurora much off; stars very clear and distinct; very faint aurora now; very faint pulsations ?
neither would have been detected unless carefully watched.
50. Much as at 40™; most distinct about NNE., where the point of the wedge of sky is still well seen,
15 0. Very faint; as before.
5. Bright again with pulsations; nearly the whole sky covered. An amorphous mass of cirrous cloud
on SSW. horizon, which seems to pulsate (or merely reflects the pulsations of the rest of the sky 2);
it is dense on one side, and extends into thin cirri on the other (W.) side.
20. Faint again, with pulsations around.
30. The cloud to SSW. has extended into long strips of cirrus ; radiating from that point, it completely
obscures the stars, excepting at the extremities, where the stars are seen dimly. The strips have
a slight curvature, the concavity to E., are blackish, and quite different from the milky aurora.
They reach now to zenith ; pulsations to E.
35. Idem.
16 0. Overcast; pulsations to NNE.?
10. Loose, chequered cirro-cumuli to S. (B.)
Feb. 24 8 5. A very faint auroral bank, 5° altitude. 25™. Aurora as before ; very faint, sky quite clear, and no
moonlight.
35. The auroral light can with difficulty be detected.
44, The aurora, which has been very faint, was now broken into bundles of streamers some of them
reaching to an altitude of 20°.
49. <A low indistinct arch, crown about N by W., altitude 5°; a few faint streamers to NNW., reaching
to an altitude of 25°.
56. Arch from NE by N., to NW by W., a few pencils at the eastern extremity.
9 1. Flat arch about 7° altitude. :
15. Measurements of arch; extremities N. 27° E. and N. 70° W., altitude of summit 8°, centre of arch
N. 20° W, ; afew patches within the arch. 20™, The arch has much diminished and is very faint,
afew patches on the horizon.
25. Two arches, the upper one very faint, the lower broken and about 23° altitude; a dark space, not
cloud, among the aurora to N. 28™. Aurora much fainter. 30™. Growing brighter, chiefly com
posed of broad patches which commence on the horizon and spread upwards.
38—40. An irregular mass of light from about N. $° W. to N., where it breaks abruptly ; the mass moves
slowly eastward ; at the termination of the light there is a dark space, and a little farther east
ward a few streamers ; the light breaks up into patches, filling up the dark space ; it then swells”
out into a dense mass of light, and moves westwards, apparently pushing an intensely black pa:
before it.
45. All broken up, a few bright patches. 51™. The moon rose about this time, and obscured the aurora,
some streamers were seen occasionally afterwards. (W.) . i
10 0. Faint streamers seen to NNW. |
Feb. 2811 O—80. The sky seems milky all over, witha slight appearance of radiation from N by E. ; it seems pro=
bable that thisis milky aurora. There is rather more light to N. than elsewhere. Cannot be s re
that there are any pulsations. There are dark-looking patches (of cloud?) to NW., through
whose edges at least stars are visible, ee
12 0. Evidently auroral light to N., but very faint; in fact only a little lighter than the rest of the sky,
which is much as before ; the black patches to N. are away, at least from their previous position ; ;
if clouds they were very ‘thin.
13 4, Cirri radiating from 8 by W., sky milky as before; some cirrous haze.
14 4. Cirri with cirrous haze, cirri radiating from about S. and N. Faint auroral light to N. It may be
remarked that the character of the disturbances on the nights of milky aurora has been the same.
March. 7 14 10. Clouds cleared off from zenith, and to an altitude of 45° above NE., where the sky seems milky and
lighter than nearer the zenith ; cirro-cumulous clouds to NW. are very black, and seem lying in
a milky sky. Speck of light near horizon at NNW. At the edges of the clouds the sky seems
milkier than elsewhere, or if milky in no other place, it seems milky there ; this has been frequently
noticed before, is it merely an optical deception? (B.) 4
: J
Notes To THE ExTRA OBSERVATIONS OF MAGNETOMETERS, Marcu 18—Avucust 29, 1845. 123
NOTES ON THE AURORA BOREALES SEEN AT MAKERSTOUN.
m™m.
15. There is little doubt there is an aurora; along with it, however, there is the phenomenon of auroral-
like cirrous streaks. A series of arches of cirrous streaks extend from WSW. to NE., altitude
of the highest 45° above NNW., breadth of streaks about 8°, then a belt of sky, and from 25° or
so above the horizon the whole is aurora or cirri, or both, with dark streaks amidst ; the moon-
light renders all doubtful.
29. Cirrous streaks within 10° of zenith.
49. The cirrous arches in strips now cover nearly the whole sky, rising from SW by W.and NE.? A
lunar halo is formed in the streaks. Afterwards the cirri moved off towards SE.
‘March 19 10 10. Auroral light to N.; rendered faint by the moonlight. 115 10™ and 122 10™. Auroral light. 13
| 10™, Faint auroral light.
March 23 13 10. Aurora. Streamers? vear horizon. Linear cirri radiate from SSW., a lunar halo is formed in
them, which is barred by the strips of cirri; cirro-stratus on N. horizon.
14 10. Aurora not well marked on account of the bright moonlight.
March 24 15 5. Clear to N.; sky very milky near horizon.
March 26 11 10. The sky seems rather light, especially to NNW. and SSE., the former probably due to faint aurora,
the latter to a rising moon ? the banks of clouds on both these points render it difficult to deter-
mine, Two or three flashes of lightning seen about 104.
13 10. Auroral light to N.? seen above cirro-stratous scud; doubtful, however, from moonlight.
14 10. Sky milky; the moon projects the shadow of the clouds in the air. Faint aurora? Stormy about 12".
March 29 11 15. Faint auroral light to NNW.; sky milky.
35. Aurora rather brighter, brightest near N.; pulsations ?
45. Less bright ; cirri radiate from NNW. ; sky milky, whiter in some places than others ; like thin haze
to W. and S. and NW. ; stars seen dimly through it ; a bank or arch like a crepuscular arch to E.
April 13 11 10. An auroral arch about 15° altitude, brightest towards the E., the W. end probably being rendered
fainter by the light of the moon; very little change till about 18™, when it suddenly broke en-
tirely up into patches and bundles of streamers, some of the streamers reaching to about 50°
altitude; some of the patches very bright, they moved about considerably, but in no particular
direction : after a little the aurora grew fainter.
12 0. Aurora faint.
13 19. Vivid aurora, with, large, broad and persistent streamers. 26™. Auroral arch about 35° altitude,
with pencils imside the arch, very vivid. 3838™. Arch irregular, continuous and rapid pulsations,
streamers, &c. 88™. Arch broken and diffuse, with slight variation, few streamers. 42™—43™.
Arch flat, 15° (2) altitude; aurora homogeneous, slight change. 47™—48™, Arch higher and
brighter, much of it covered by cirro-cumulus and cirro-stratus. 52™—53™. Nearly as before,
bright to NE. 57™—58™. Arch higher, much as before in brightness, but becoming more and
more covered with clouds.
14 6. Clouds 9.5. Aurora brightest to NE.
23. Aurora apparently much fainter; seen through the openings of the clouds. 34™, Aurora much
brighter. 48™. Vivid patches seen between the clouds,
53—54. Vivid streamers.
15 29. Aurora vivid. 35™. Aurora extends to an altitude of 50°, nearly homogeneous, with pulsations.
: 50™. Aurora evidently fainter ; wind rising.
16 4. Auroral patches in zenith? Aurora to 8.?; light to S. 9™. Sky milky? or aurora; not very
bright to N., but clouds there. 25™. Sky overcast with hazy cloud; rain commencing.
=
Ss:
d.
March 18
¥ 18 5—15. A long strip of light above the sun (E by N.), like the sun reflected from much rippled water,
ty: cirri radiating from NNW. (magnetic north.)
April 19 11 5. Milky-like to NNW. Aurora?
April 30 11 15. Faint auroral light to N. ¢
} 13 10. Idem.
Bre. 29 9 55. A bright and very complete belt of auroral light stretching entirely across the sky from ENE. to
¥ WSW.., the part nearest the zenith having an altitude of 80° from the SSE. ; at both extremities
of the belt there was a slight turn towards the N.; the breadth at the broadest part was about
2° or 23°, becoming less near the horizon; a diffuse auroral light to northward.
10 7. The belt has now gradually disappeared, except a small portion to WSW., which still remains in
the form of a narrow streamer; a few faint streamers to NNW.
15. A portion of an arch to westward, composed of wisps of auroral light placed en echelon, about 2° or
3° apart, and their length from 5° to 10° each, varying in width, and more or less irregular ; a belt
of light to eastward; the highest wisps point to NW., the lowest to WSW., the directions vary-
ing gradually between these.
124 Noves to THE Extra OBSERVATIONS OF MAGNETOMETERS, AUGUST 29—NoOvVEMBER 17, 18 45,
NOTES ON THE AURORZ BOREALES SEEN AT MAKERSTOUN.
da ae sero.
Aug. 29 10 20. The belt portion of the arch does not join directly with the wisp portion, but has a twist a few
degrees to S. of the zenith, the direction of the belt near the junction is at right angles to the di-
rection of the wisps.
20. A falling star to E., altitude 20°, moving towards E by S., first magnitude.
24, The belt has shifted slowly to 10° S. of the zenith; the portion to westward is now of a homoge-
neous character ; patches or wisps still in the zenith; fading to E.
The light has always been very persistent ; no corruscations or pulsations being discernible.
35. The band has the appearance of a rope of two strands teased out at the ends, extending from W.
to a little past zenith.
45. The bandstill subsists to W., a few small patches to SSE., altitude 70°. A shooting star to SSW,
altitude 30°, moving S. The aurora has been always faint to NNW.
55. The band has all disappeared except a small portion to WSW., which has assumed the form of t
short streamers.
11 0. Almost every trace of aurora has now disappeared; there is still a very faint light to NNW.
50. Aurora becoming rather brighter, still quite diffuse ; patches of cirro-stratus and cirrus interspersed.
55. A small shooting-star to S., moving to SSW.
12 35. Streamers breaking out to N by W.; the aurora considerably obscured by clouds.
45. Faint streamers thrown up throughout the aurora.
13 25. Diffuse patches of auroral light.
Sept. 210 5. Faint auroral light and faint streamers, 20° altitude, to NW.
11 50. Occasionally very vivid streamers close to the NW by N. horizon, length about 5° (B.) ;
12 0-30. A band of very faint light, stretching from ESE. point of horizon to S., altitude 30°, the breadt
perhaps 10°. The light however was so very faint as to create a suspicion of its being an optical
illusion ; it was certainly not the milky way ; no traces of it could be seen at 13> (W.)
Oct. 20 13 5. Faint auroral light, with patches and small streamers, altitude 5°, Moon shining.
Nov. 412 5. Diffuse auroral light, to altitude 6°, interspersed with streamers, some of which rise to 15° or 20°
altitude.
20. Aurora nearly imperceptible.
Nov. 5 6 50. Faint auroral arch; azimuths of extremities N. 42° E. and N. 72° W., greatest altitude of uppei
edge 12°. At this time M. Hansteen observed an aurora at Christiania, consisting of an arch
of 10° altitude, with its summit at the NW., visible from 5}* till 84, when the sky became over
cast. So that 43° farther north the aurora has had no greater altitude than at Makerstoun.
Mem. Acad. Roy. de Belgique, tome xx.
Nov. 17 6 40. Faint auroral arch, about 7° altitude. 55™. Auroral arch, altitude 13°.
7 5. Arch has become diffuse and broken, extends from N. 38° E. to N. 82° W., altitude 123°. 15
The arch has now a depression at the middle, about 3° east of the magnetic meridian; a faint
patch to N by E., altitude 26°.
20-25. A portion of another arch, altitude 27°, also some appearance of a third arch close to the
horizon ; streamers throughout the aurora from the horizon; the whole seen as through a fog.
30. The upper arch gone; a bright patch due W. moving a little to S.; streamers to NNE.
35. Auroral arch to N., in the form of a seoment of a circle, altitude Liye: the western extremity of
an arch has formed, which, if completed, would have been about 30° altitude ; this had disappeared —
at 39™; the aurora altopether diminished. .
42. Very anne moon rising.
45. Arch becoming rather more vivid, dark space below it, with small streaks of cloud to N. and n
by W.; strips of cirro-stratus to NNE. 50™. Nearly as before. 55™. A faint streamer to NW.
within the arch. There have been patches of cirro-stratus among the aurora almost the whole
time.
7 57-59. The auroral light, which had sprung up towards NE., rolled gradually westward in the da
space under the arch (like fire sweeping along a heath in a dark night), breaking at one time it
two opposing combs, the teeth vertical. At 59™ a bright meteor, first magnitude, fell vertically
from an altitude of about 25° above NNW., (7. e., im the. magnetic meridian) ; it moved with consi-
derable slowness, occupying perhaps two oi ines seconds, till it met the auroral arch, where e
was suddenly and completely extinguished.
8 50. Double arch, the upper one 12° altitude, and the lower 4° altitude ; the lower archis the most vivids
a brush to NW.; at 46™ and again at 52™ irregular streaks of cirri to S. 55™. Bright masses of
light forming to 'N by E., proceeding westwards and saa a portion of an arch 8° altitude
58™, Bright brush to N by E.; bright horizontal band to N., altitude 3°. 59™, Brushes and
patches scattered throughout the aurora.
Nores To THE ExTRA OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 17—DEcEMBER 3, 1845. 125
NOTES ON THE AURORA BOREALES SEEN AT MAKERSTOUN.
eet: .
Nov. 17 9 5. Bright patches and bands, forming combs, brushes, and streamers.
7. Bright brushes and streamers to NNW. 10™. Faint streamers to N by W.., occasionally bright.
15™, Faint streamers throughout.
20. Altogether faint.
55—59. Patches and brushes breaking out.
10 16. No aurora visible.
Dec. 8 5 50. Auroral arch about 35° altitude, vivid pencils and brushes within the arch.
56. Very bright to NNW.
58. Double arch, bright to NW.
59. Like rows of spears, bright to NW.
| 6 0. Vivid broken pencils or double brushes.
1. Bright beams to NNW. from the lower arch, andwithin the upper arch the latter has an altitude of 25°.
4, Vivid brushes from a low arch to NW by N.
7. Arch of short brushes about a degree in breadth.
. 8. Inferior side of arch of brushes 5° altitude.
9—10. Vivid green brushes to NNE., which break up the arch.
10. The arch of brushes like a reaping-hook, the apex of the circular portion in the magnetic meridian.
. 11. Brushes and patches detached, of much breadth.
13. The arch of brushes now forms two, like the arches of a bridge, the junction of the two being in the
magnetic meridian ; a patch of black cloud in the upper auroral arch to NE.
14. Brush arch quite flat.
15. Vivid green spears to NNE.
16. Undulated arch of brushes.
18. Vivid pencils and brushes, the most vivid to NNW;; the pencils are penetrating the upper arch.
21. Black cloud still stationary in auroral arch to NE. ; bright to NNE.
23. Upper arch rather higher, 27° altitude.
24. Brushes close to horizon.
25. Double row of brushes, bright in some places.
26. Portion of an arch close to horizon to N., rising.
27. Cloud to NE. becoming smaller, but still in the same position.
28. Like a lake of flame to N.
31. Cloud to NE. disappeared; streamers vivid to NE.
32. Low arch of brushes 4° inferior altitude, vivid pencils to NNE.
35. Upper or permanent arch faint; three rows of brushes, vivid to NNE. and NNW.
36. Beautiful, undulating, and travelling masses of green brushes.
37. Again the curve somewhat like a reaping-hook.
39. Three piles of brushes (one above the other), bright to NW.
40. Brushes chiefly to NW.
41. Much fainter.
42. Amorphous mass of light to NE., arch disappearing or falling in.
44. Streamers above the upper arch and also close to horizon.
45. The permanent arch still visible.
50, Aurora faint till now, vivid streamers to W., arch about 30° altitude, but faint; black cloud to
NW. in the aurora.
52. Faint. The previous observations were made within the Observatory from one of the north windows.
53. Upper arch disappearing. As the disturbance was still considerable the observer went out of the
Observatory to see the phenomena more completely, when he found—
54. <A broad arch through zenith, very diffuse to W., and bent from ENE, to the S. with a great bay.
56. An arch springing from ENE., about 10° broad, taking a large bend towards the S., and crossing
at about 10° tothe §. of the zenith; the southern edge passes within 2° of Aldebaran, touches the
Pleiades, the belt then stretches straight across the sky, passmg through Cygnus, the northern
edge touching « Cygni.
9. The arch moving off towards the S., altitude 50°; streamers springing from the eastern extremity.
7 O. Arch going still farther towards the south.
8. Auroral arch through zenith, faint ; bright pencils to E., en echelon.
18. Vivid pencils as before to N., with black cloud to NW.
20. A series of broken arches to N., under 60° altitude; the arch to the S. has disappeared.
21. Three broken arches with the altitude of 60°. Amorphous brushes to NE.
24. Brushes to NE., inclined irregularly to different points.
|
}
\
H
MAG, AND MET. oBs. 1845, 21
126
Notes To THE ExTRA OBSERVATIONS OF MAGNETOMETERS, DECEMBER 3, 1845.
NOTES ON THE AURORA BOREALES SEEN AT MAKERSTOUN.
Dec.
d.
3
h.
7
m. 4
27. Serried rows of brushes moving and undulating in three rows or arches coloured green, with —
y
occasional red.
28. Faint arch 25° altitude; clouds to NNW.
30. Irregular brushes to NNE.
31, At this time commenced the most beautiful phenomenon of the evening which it is impossible to de- —
scribe completely. A vertical scroll or sheet of beams, with one extremity nearly fixed to NE by
N. or NNE., altitude 10° at the bottom, commenced unwinding itself, assuming the forms of a—
succession of scrolls, which undulated with a worm-like motion; meanwhile the beams of green
rolled backwards and forwards ; the foremost or advancing portion of the scroll was generally red-_
dish, and moved towards the NW. The whole period of unfolding the scroll could not be above 1™,
Another scroll-like mass of pencils to NE.
36. Low arch of brushes ; black band below them for some time.
38. Irregular mass of brushes.
42. A sheet unfolding to W., and rolling along ; gorgeous.
46. Most magnificent lights to W., with beautiful green and red.
49. Aurora faint, pencils above the arch.
51. Pencils rismg from WSW., and broken arches passing nearly through the zenith.
59.—8, 5m, Like a large pair of wings pulsating near zenith, appearing and disappearing.
0. A wavy sheet of auroral light, passing about 10° to S. of the zenith, principally composed of patches,
each patch having the appearance of a pair of half-expanded wings, the front of them being to-
wards the E.; very rapid pulsations proceeding along the belt from eastward, several times in a
second ; the patches become faint or nearly disappear, in the intervals between the pulsations.
4. Sheets unfolding and rolling along to N.
5. An arch to N. about 45° broad, altitude of the lower edge 40°; the lower edge is formed upon un-
folding sheets. The belt through the zenith has disappeared.
11. Vivid extremity of an arch to NE.
14. The arch brightest to NE.
16. <A patch of scud to SW., and a black patch below the arch to NNE.; diffuse homogeneous light
over the whole of the north portion of the sky.
21. Bright auroral arch, with patches of black cloud.
26. E. extremity of arch a sea of flame, with black, island-like clouds in the midst.
30. An arch, with a very brilliant border.
32. Pencils on the arch at considerable distances from each other; a bright speck on NNW. horizon.
34. Brushes below the arch to N by W., arch cycloidal at the terminations.
36, Arch like a portion of an ellipse.
38. <A portion of a bright arch, formed under the former arch.
40. The arch is rather breaking up, altitude 10°.
41. A beam immediately above the moon, which is setting, to WSW.
55. The eastern portion of an arch to SE. altitude 35°; homogeneous light to N.
58. Pencils to NE.
5. There is still a portion of a faint arch to S. altitude 25°.
9. Arch to S. very faint, 20° altitude; amorphous light to N.
35. Cireular segment of auroral light to altitude 15°. An arch 45° altitude composed of patches of
nebulous light, pulsations throughout the aurora.
45. Faint bands and patches all over the NW. portion of sky to altitude of 70°.
0. Flash of ightning on SSW. horizon ; auroral arch still bright.
15. Auroral arch stretching from W by S. to NE., altitude of inner edge 15°, 10° to 15° broad ; occa-
sional bands and patches, to an altitude of 45°; very little change has occurred for an hour.
15. Auroral arch falling in the middle, with brushes below.
25. Arch about 10° broad in bands with brushes.
32. Arch somewhat elliptical on the inner edge, and circular on the outer edge, altitude of inner edge
about 10°, of outer edge 20°.
39. The eastern side of the inner edge of the arch slopes off like the outer edge, the western side re-
maining more vertical, as at 32™.
50. Arch formed of irregular bands, total altitude 40°, altitude of inner edge, rather fallen in in the
middle, 10°.
5. Arch again complete. 12™. Brushes within the arch to NNE.; a second arch forms occasionally
by frequent pulsations at an altitude of 35°.
14. Bright pencils to NE.; second arch of short pencils.
Nores To THE Ex?TRA OBSERVATIONS oF MAGNETOMETERS, DECEMBER 3, 1845. UZ
NOTES ON THE AURORA BOREALES SEEN AT MAKERSTOUN.
Gl WA fale
Dec. 3 14 22. Pulsating arch about 35° altitude, 23™. The lower arch falling into bright brushes; rapid pulsa-
tions between the upper and lower arches.
26. Rapid pulsations ; row of brushes below the lower arch, altitude 5°.
28. Continuous pulsations ; bright brush on NNW. horizon, pencils from it ; rows of brushes below the
lowest arch.
31. Pulsations upwards from the arch, brushes all below, pulsating arch gone ?
35. Bright pencils and pulsations, the former within, the latter without, the low arch. 41™. Arch fainter.
44. Arch formed of rapidly pulsating bands, with streamers here and there.
50. A continuation of the rapid flashes from the arches.
15 10. Pulsations chiefly about 20° altitude, sometimes vivid. The arch getting lower wholly within about
12° altitude.
27—28. Streamer to NNE., brushes, continuous pulsations.
30. Pulsating brushes low,
39. W. extremity of an arch visible; the original arch now composed of pulsating brushes. Streaks of
cirro-stratus to WNW. and NNW. all apparently radiating from about NNW. Rapid pulsations.
16 4, Masses of cirro-stratus increased, middle of the masses about NNW: as if branching from that point
(magnetic north) ; rapid pulsations ; no complete arch.
15. Clouds separating ; aurora rather increasing ; homogeneous segment with pulsations above. The
clouds do not seem to move away, but simply to increase or diminish in bulk, disappearing alto-
gether at times. (This growth and disappearance of cloud has been frequently observed during
exhibitions of aurora, and will be found noticed in future notes. B.)
24. The eastern portion of clouds remaining, the rest gone, excepting a few specks to NNW.
29. Nearly homogeneous circular segment of light, pulsations famt, 32™. Clouds gone.
46, Auroral light within 10° altitude at NNW. ; faint, with faint pulsations.
The same time is employed in these Notes as in the Hatra Observations of Magnetometers, namely, Gottingen mean time, astronomical reckoning,
Ven
pe wey,
T ouphe ud
OBSERVATIONS OF MAGNETIC DIP,
AND FOR THE
ss ABSOLUTE HORIZONTAL INTENSITY.
-
ie 4
ot a
#
MAKERSTOUN OBSERVATORY,
1845.
it MAG. AND MET. ons. 1845,
eo!
xn
2k
130 OBSERVATIONS OF MaGngtic Dip, JAnuARY 7—May 9, 1845.
) NEEDLE. FACE OF CIRCLE E. FACE OF CIRCLE W. 2
Gottingen a SSS SS Ee
at an : ne Nae aon tip Mark on Needle Mark on Needle Mean. ees P ;
Observation. ber. ture. | ping. b. W. E. w. c=)
d he, 2: m e 3 y c , ° , ° ‘ ° , ° ,
dene 7 OW 30 sce 2 37 B 12, 22-5 |) (1 29:0) |) 7a) 35-0 70 57-5 || 71 36- 00";
Jan, ff 4.10 20 2 36 B 72 22:0 | 71 28-5 71 42-0 70 55-0 || 71 36- aol | 71 29-72
Jan. 7 4 45 20 2 36 A TL 22:07 1-72) 1-0 70 41-0 71 14-0 || 71 23- o0*|
Jane | f2smo0 38 2 43 A TiS) 72 6-5t 70 38-0F| 71 18-5 ||71 20-37
idan. § (0 115 20 2 45 A ITSO 2) wore 70 39-5 71 17-0 || 71 20-25 71 29.98
Jan. 8 0401] 20 2 46 | Bo 72 39.0 | 71 1-5" i 71 51-5 || 70 39:0 |\74 37-75
i Jan. 8 1 45 20 2 46 B 72 38-0 | 71 19-0 71 54-0 70 44-0 || 71 38-75
| Jan. 16 22 40 25 2 37 B Wot step al gl or 71 49-5 70 44-0 ||71 39-00
Jane e010 25 2 39 B 72 44-0 | 71 24-5 71 55-0 70 42-0 || 71 41-37 71 30.90
Jan. 17 O 30 25 2 42 A il 1-0) Wi 2e 2955 70 20-0 71 30-0 || 71 20-12
Hein, 7 il Bie 20 2 43 A 71 6:0 |} 72 30-5 70 17-0 71 39-0 || 71 23-12
Jan. 20 22 50 7 2 35 A me © 1-0) 7 2828-5 70 14-0 71 28-5 ||71 18-00
Jan. 21 4 40 20 2 38 A Wi 2:5) 72) 2a-b |7Oet9-5 71 32-0 || 71 19-87 71 28.68
Jan. 24 0 O 32 2 40 B 72 30-0 | 71 22-0 | 71 53-0f| 70 48-5 ||71 38-37
Jan. 24 4 40 16 2 41 B 72 28-5 | 71 22-5 71 55-0T| 70 48-0 | 71 38-50
Hebe an22145 21 2 37 A tt 7-0' | 72) 19-0 708 27-5 | 71 92:0" Fl 18:87
Feb. 4 4 45 20 2 45 A i Beye || fieh Uist, 70 32-5 71 26-5 171 18-87 71 97-31
Feb. 7 0 0] 20 2 | 34 | Bol92' 28-5 ul 71-19-04 9 4a 4. 79 41-5 71 Sauas Yi
Feb. 7 4 50 20 2 32 B 72 32-0 | 71 19-5 || 71 53-0 | 70 44-5 || 71 37-25
Feb. 10 22 30 20 2 32 A ll 3:0) 172) 26-0 70 11-5 71 25-0 || 71 16-37
Feb. 11 4 35 20 2 33 A Wilt 20M 29 2725 70 18-5 71 24-5 71 18-12 }>|- 71 28-68
Feb. 13 22 30 19 2 36 B 72 51:0 | 71 13-0 (he 1165) 70 35-0 || 71 40-12
Feb. 17 23 50 20 2 36 B 72 58:0 | 71 16-5 72 8-5 70 34-5 || 71 44-37
Feb. 18 4 55 20 2 51 B 12 ok) |) 71) 160 72 9-0 70 44:5 ||71 45-25 71 32-06
Feb. 20 22 50 18 2 Bys A 7 4-0) (072) 11-0 70 31-0 GA 27-5. nl Sasa
Feb. 21 4 50 25 2 41 A Ue AGe 72s (ies 70 34-5 71 30-5 || 71 20-25*
Feb. 24 23 30 26 2 36 B Tarp tl 20-0 71 55-0 70 42-0 ||71 38-62
Heb; 25) 5) 0 PAE 2 44 B 72 27-0 | 71 18-5 71 58-0 70 48-5 || 71 38-00 71 28.53
Feb. 27 23 30 25 P| Sys) A 71 «1c 721920 70 25-5 71 29-0 ||71 18-75
Feb. 28 4 45 21 2 42 A 70 53-5 | 72 9-0 70 34-5 71 38-0 || 71 18-75
Mary see?) 45 25 2 38 B C2 435 et ledieO Te PHO) 70 41-0 || 71 40-87
Mar, 4 4 45 25 2 36 B Theda leisy Wer (ie i lir(os oe Med 70 41-5 || 71 40-50 71 29.43
Mar. 6 22 30 30 2 37 A 70 54:0 | 72 30-5 70 15-5 71 35-5 || 71 18-87
Mar. 10 22 35 20 2 44 A 70:°58-0 | 72 31-5 70 13-5 71 35-0 || 71 19-50*
Mar. 11 4 50 ware 2 44 A f0,56-0) |) 125 165 70 22-5 71 45-5 171 20-25
Mar. 12 5 O 15 2 49 A 70 50:0 | 72 24-0 70 21-5 71 41:0 || 71 19-12 71 26-52
Mar. 17 22 20 30 2 37 B 72 10:0 | 71 26-5 71 44-0 70 58-0 || 71 34-62
Mar, 18 4 50 sisie 2 59 B 72 4.0 | 71 23-5 71 44-0 70 57-0 ||71 32-12
Mar. 20 22 40 25 2 36 B 12 9-5° |) TiR285 71 43-0 70 51-5 || 71 33-12
Mar. 22 4 50 20 2 54 B 12) 3°50 FL) 26-0 71 42-0 70 58-0 || 71 32-37 71 27.40
Mar. 24 22 50 20 2 56 A Tle 270 72) 27-0) 70 22-0 71 32-5 || 71 20-87
Mar: 25 5 0 20 2 50 A (1) 5-0 ev2e2sen 70 28-5 71 36-0 || 71 23-25
Apr. 3 22 50 35 2 40 A 70 56:0 | 72 15-0 70 24-0 71 28-5 || 71 15-87
Apr. 4 4 50 26 2 46 A 70 56:0 | 72 12-0 70 29-5 71 30-0 || 71 16-87 71 28.43
Apr 97 23) 10) 23 2 50 B 72 26-0 | 71 21-0 72 3-0 70 53-0 ||71 40-75
ioe, &) 8) @ 20 2 Bye B (20295 171205 de 92:0 70 49-0 || 71 40-25
oe il OO 25 2 45 A al) 1-5) 72" 16:0 70 23-0 71 34-5 || 71 18-75
Apr Ll) 5) 0 2a 2 46 A 70 59-5 | 72 16-0 70 23-5 71 34-0 || 71 18-25 71 27-59
Apr. 24 22 50 22 2 50 B 72 20:0 | 71 29-5 71 48-0 70 53-0 || 71 37-62
Apr. 25 4 50 20 2 65 B 72 14555) 71 Bo-5 71 48-0 70 55-0 || 71 35-75
Apr. 28 23 25 25 2 62 A 71 1-0 | 72 19-0 70 22.5 71 37-0 || 71 19-87
Apr. 29 4 50 15 2 65 A C1) QO 721955 70 18-5 71 36-0 ||71 19-00 71 27.96
May 1 23 50 20 2 61 B 1228-0) Fetal Ss5 Al BO) 70 45-0 || 71 36-62
| May 2 4 50 20 2 62 B 1 BHO Nr Wee leat 70 46-0 || 71 36-37
May 9 23 tee 2 53 A 70 48:5 | 72 10-0 70 32-0 71 43-5 ||71 18-50 71 26-75
f Azimuth 30° 2 53 A 73 2-0 | 73 48.5 72 39-0 73 28-5 1173 14-50
Azimuth 60° 2 53 A 79 47-5 | 80 49-0 79 34-0 80 45-5 ||/80 14-00
Azimuth 90° 2 53 A 89 27-0 | 90 45.0 89 14-5 90 23-0 || 89 57-37
Azimuth 120° 2 53 A 80 51-5 | 79 35-0 81 1:5 80 4-0 {180 23-00
—
* Observations considered goo + Observations considered bad or unsatisfactory.
Jan. 74 23h 30m, The two readings {+ were aan as the needle when lifted always vibrated through 5° or 6°; this did not happen in observations imme-
= after at 84 0h 15m
Jan. 24d 0h and 24a 45, The readings {+ were fy for the same reason as above.
April 34 22h, Horizontal level rather out. April 4d 4h. Instrument levelled before this observation. et
May 94. Observations made in different azimuths, for the results, see the Introduction, article Inclinometer. The dip given opposite, May 94 28h, is dedu
from the observation at that time, A dipping, and from the observation, May 10d 2h 40m, B dippin g, both observations having been made in the magnetic meri
OBSERVATIONS OF Macnetic Dip, May 10—Aveaust 29, 1845. 131
NEEDLE. FACE oF CIRcLe H. Fack or CIRCLE W. =
Giéttingen ape Te Ce
Mean ime | toe” Tum.| Tem-| End || Mark on Needle Mark on Needle Mean. we Fe
Observation. ber. | tare. ae E. W. E. W. oa
ad. he. 7m. m. 2 2 a c ‘ ° ‘ ° ’ ° , ° j
Azimuth 150° be 2 53 A 73 39-0 | 72 41-0 || 73 51:0 | 73 16-0 || 73 21-75 Ww
May 10 2 40 2 53 B 72 45 | 71 26-5 || 71 43-5 | 71 5-5 ||'71 35-00 WwW
Azimuth 30° 2 53 B 74 3-5 | 73 27-0 || 73 39-0 | 73 16-5 ||73 36-50 WwW
Azimuth 60° 2 53 B 81 9-5 | 80 16:0 || 80 39-5 | 79 57-0 || 80 30-50 ‘WwW
a 90° 2 53 B 90 39:0 | 89 45-5 | 90 7-5 89 16-5 || 89 57-12 WwW
Azimuth 120° 2 53 B 80 1:5 | 80 39-5 || 80 21-0 | 81 6-5 | 80 32.12 WwW
Azimuth 150° aru 2 53 B 73 16:5 | 73 43-5 || 73 26-5 | 74 11-5 ||73 39-50 WwW
May 12 23 20 20 2 59 B 72 65 | 71 26-5 || 71 46:0 | 71 1-5 || 71 35-12 WwW
\ 13. 4 25 19 2 64 B 72 4:5 | 71 23-5 || 71 43-0 | 71 2-0 || 71 33-25 71 26.55 WwW
15 22 50 Ben 2 70 | A 71 85 | 72 4-0 || 70 37-5 | 71 29-0 | 71 19-75 f Ww
16 4 50 20 2 fey A 7 6-5 | 72) 2-0.) 70 35-5 | 7128-5 || 71 18-12 WwW
19 22 30 25 2 50 B 72 17-5 | 71 23-5 || 71 50-0 | 70 58-5 || 71 37-37 Ww
20 4 50 20 2 Poe B 72 11-5 | 71 27-0 || 71 48-5 | 70 59-0 | 71 36-50 71 27.62 WwW
22 22 20 26 2 51 A 71 2-0 | 72 23.0 | 70 17-0 | 71 31-5 || 71 18-37 } WwW
23 4 50 20 2 55 A 71 0-0 | 72 22.0 || 70 17-0 | 71 34-0 71 18-25 WwW
27 23 0 20 2 53 B 72 18-0 | 71 20-5 || 71 53-5 70 52-0 | 71 36-00 B
28 4 50 18 2 65 B 72 22:0 | 71 30-0 || 71 42-0 | 70 49-5 | 71 35-87 71 98.77 B
223 0 25 2 67 A 71 17-0 | 72 9-5 || 70 38-0 | 71 29-0 | 71 23-37} : B
3.5 0 20 2 66 | A 71 14:0 | 72 10-0 || 70 31-5 | 71 24-0 | 71 19-87 B
5°23 10 25 2 64 B 72 8-0 | 71 30-0 || 71 45-0 | 70 54-0 ||71 34-25 B
6 5 20 15 2 63 B 72 8-0 | 71 32-5 || 71 41-0 | 70 51-5 || 71 33-25 71 26.69 B
9 23 30 25 2 64 A 71 15-0 | 71 59-0 || 70 39-5 | 71 25-5 || 71 19-75 ' WwW
10 4 50 20 2 65 A 71 15-0 | 71 58-5 || 70 42-5 | 71 22-0 || 71 19-50 WwW
20 22 20 16 2 64 B 72 25-5 | 71 19-0 || 71 55-5 | 70 56-0 || 71 39-00 WwW
21 4 45 20 2 78 B 72 19-5 | 71 20-0 || 71 55-0 | 70 55-5 | 71 37-50 71 28.75 WwW
23 22 30 20 2 62 A 71 12:0 | 72 22-5 || 70 16-0 | 71 28-0 || 71 19-62 ; WwW
24 4 40 15 2 62 A 71 10-0 | 72 21-0 || 70 14-5 | 71 30-0 | 71 18-87 WwW
6 23 45 20 2 73 B 72 23-5 | 71 20-5 || 71 58-0 | 70 51-5 | 71 38-37 WwW
7 4 50 2 79 B 72 20:0 | 71 18-5 || 71 52-0 | 70 52-0 ||71 35-62 71 27.50 Ww
11 22 40 22 2 64 | A 71 2-0 | 72 40-0 | 70 1-5 | 71 31-5 | 71 18-75 # WwW
12 4 50 2 70 A 71 40 | 72 30-0 || 70 2-0 | 71 33-0 ||71 17.25 WwW
14 23 25 20 2 60 B 72 33-0 | 71 23-0 || 71 58-0 | 70 48-0 | 71 40-50 WwW
15 5 O 20 2 74 B 72 29-0 | 71 19-0 || 71 56-5 | 70 49-5 ||71 38-50 71 29-59 WwW
17 22 45 20 2 62 | A 71 15-0 | 72 11-5 || 70 31-5 | 71 20-0 |}71 19-50 Ww
18 5 O 2 68 A 71 145 | 72 8-0 || 70 34-5 | 71 22.5 || 71 19-87 WwW
21 23 40 18 2 53 B 72 30-0 | 71 24-5 || 71 47-0 | 70 52.0 ||71 38-37 Ww
22 5 0 2 56 B 72 22.0 | 71 24-0 || 71 46-0 | 70 50-0 |/71 35-50 71 99.34 Ww
24 23 0 25 2 62 | A 71 13-0 | 72 22-0 || 70 26-5 | 71 29-0 ||71 22-62 4 Ww
25 4 50 20 2 74 A 71 9-0 | 72 13-5 || 70 30-0 | 71 31-0 || 71 20-87 WwW
28 22 50 15 2 72 B 72 29-0 | 71 24:0 | 71 49-5 | 70 50-5 | 71 38-25 B
euro 60 15 2 73 B 72 21-0 | 71 17-0 || 71 50-0 | 70 51-5 ||71 34-87 71 98.68 B
1 22 45 30 2 65 A 71 21-5 | 72 7-5 || 70 37-5 | 71 17-0 ||71 20-87 B
2 4 50 25 2 66 A 71 16-5 | 72 9-0 || 70 34-5 | 71 23-0 | 71 20-75 B
5 23 0 20 2 81 B 72 9-0 | 71 20-0 || 71 46-0 | 70 58-5 || 71 33-37 WwW
fo 0 22 2 74 B 72 11-5 | 71 18-5 || 71 45-0 | 70 55-0 ||71 32-50 71 26.59 WwW
8 22 40 30 2 59 | A 71 2-5 | 72 27-0 || 70 22.0 | 71 35-0 ||71 21-62 ‘ WwW
3) By) 20 2 55 A 71 3-0 | 72 26-0 || 70 14-5 | 71 32-0 || 71 18-87 WwW
11 22 30 25 2 57 B 72 31:0 | 71 24-5 || 71 49-0 | 70 50-0 | 71 38-62 WwW
12 4 50 15 2 59 B 72 27-0 | 71 24-0 || 71 48-0 | 70 49-0 | 71 37-00 71 28:03 || W
14 22 25 30 2 57 A 71 11-5 | 72 35-5 || 70 1-5 | 71 24-5 | 71 18-25 WwW
18 23 40 25 2 oon A 71 5-0 | 72 31-5 || 70 9-5 | 71 29-0 | 71 18-75 B
195 0 20 2 53 A 71 6-0 | 72 33-5 || 70 1-5 | 71 20-0 | 71 15-25 71 24.90 B
2223 0 2 64 B 72 13-0 | 71 26-5 || 71 37-5 | 70 56-0 | 71 33-25 ; B
23) aD) 20 2 67 B 72 9-0 | 71 25-0 || 71 37-5 | 70 58-0 | 71 32-37 B
26 22 40 23 2 62 | A 71 18-5 | 72 8-5 || 70 32-5 | 71 20-0 || 71 19-87 WwW
aio 0 20 2 Tl A 71 15:5 | 72 5-5 | 70 39:0 | 71 23-0 | 71 20-75 71 28.96 WwW
28 23 30 25 2 82 | B 72 29:0 | 71 13-0 | 72 1-5 | 70 48-0 ||71 37-87 4 WwW
29 4 50 20 2 86 | B 72 28:0 | 71 14-0 | 72 2-5 | 70 45-0 | 71 37-37 WwW
| t+ Observation considered bad.
132 _ OBSERVATIONS OF MAGNETIC Dip, Sept. I—Dec. 1, 1845.
NEEDLE. FACE OF CIRCLE E. FACE oF CIRCLE W. 1
Gottingen SS SSS Py
eet) 2am ke a fe Mark on Needle fice |) an #
Ap ersac. ber. | ture. es E. Ww. E. Ww. oF
d h. m. m. ° ° , ° ¢ ° , ° , ° , ° ,
Sept. 1 22 40 20 2 57 A 71 85 | 72 19-5 || 70 23-0 71 27-0 ||71 19-50
Sept. 2 4 50 20 2 64 A 71 10-0 | 72 19-5 || 70 24-0 71 28-0 || 71 20-37 71 28.87
Sept. 4 22 40 25 2 65 B 72 32-5 | 71 16-0 | 71 57-0 70 47-0 ||71 38-12
Sept. 5 4 50 15 2 68 B 72 30-5 | 71 14:0 || 71 57-5 70 48-0 || 71 37-50
Sept. 9 0 O| 20 2 63 | A | 71 11-5 | 72 26-0 | 70 18-0 | 71 15-0 || 71 17-62
Sept. 9 5 O 20 2 64 A 71 50 | 72 22-5 || 70 19-5 71 25-0 ||71 18-00 71 25-12
Sept. 11 23 0 20 2 64 B 72 16-0 | 71 22-0 || 71 44-0 70 54-0 ||71 34-00
Sept. 12 5 0 20 2 76 B 72 9-0 | 71 19-5 || 71 42-0 70 53-0 || 71 30-87
Sept. 16 22 50 20 2 57 A 71 17:0 | 72 9-0 || 70 34-5 71 26-0 ||71 21-62
Sept. 17 5 0 20 2 60 A 71 12:0 | 72 65 || 70 34-5 71 25-0 || 71 19-50 71 31-68
Sept. 18 22 45 || 20 2 54 | B | 72 49-0 | 71 36-0 || 71 57-5 | 70 39-5 ||71 45-50
Sept. 19 6 20 25 2 64 B 7246-5) 1°71) 17-0) 72) 1:0 70 36-0 || 71 40-12
Sept. 22 23 0 20 2 59 A 71 4-5 | 72 27-0 || 69 58-5 71 33-0 ||71 15-75
Sept. 23 4 50 20 2 64 A 71 2-0 | 72 25-5 | 70 12.0 71 24-0 ||71 15-87 71 26-87
Sept. 25 23 0 25 2 57 B 72 32-5: | 71 20-0 | 71 55-0 70 49-5 ||71 39-25
Sept. 26 5 O te 2 60 B 72 28:0 | 71 24:0 || 71 47-5 70 47-0 ||71 36-62
Sept. 29 23 15 20 2 62 A 71 11-0 | 72 19-5 || 70 40.5 71 34-0 ||71 26-25
Sept. 30 4 50 15 2 54 | A || 71 7-0 | 72 16-5 | 70 39.5 | 71 28-0 ||71 22-75 1 97.98
Oct. 5 23 15 20 2 58 B 72 5-0 | 71 23-5 || 71 39-0 70 52-0 ||71 29-87
Oct. 7 4 40 15 2 49 B 72 12-5 | 71 24-5 || 71 34.0 70 50-0 ||71 30-25
Oct. 9 22 50 20 2 47 A 71 10-5 | 72 19:5 || 70 22.0 71 23-0 | 71 18-75
Oct. 10 4 50 vee 2 50 A 71 13-0 | 72 16-5 || 70 27-0 71 22-5 || 71 19-75
Oct. 13) 22-40 25 2 56 B 72 50:0 | 71 15-0 || 72 5.0 70 38-0 ||71 42-00 71 29.90
Oct. 14 5 O ace 2 64 B 72 42:0 | 71 13:0 | 72 2.0 70 41-5 ||71 39-62
Oct. 16 23 25 30 2 595 A 71 10-0 | 72 21-5 | 70 16-0 71 26-5 ||71 18-50
Oct. 17 5 O 20 2 53 A 71 6-5 | 72 22-0 || 70 17-0 71 30-5 ||71 19-00
Oct. 21 23 20 || 20 2 50 | B_ | 72 28-0 | 71 23-0 || 71 45-0 | 70 48-0 ||71 36-00
Oct. 22 5 0 25 2 a4 B 72 24:0 | 71 24:0 | 71 48-5 70 52-0 ||71 37-12 71 28.06
Oct. 24 0 15 20 2 52 A 71 16-0 | 72 11:5 || 70 30-0 71 19-0 ||71 19-12
Oct. 24 4 50 15 2 52 A 71 16-0 | 72 12-0 || 70 30.0 71 22-0 ||71 20-00
Oct. 28 22 50 20 2 52 B 72 19-5 | 71 19-5 || 71 47-0 70 50-0 || 71 34-00
Oct. 29 5 O wee 2 51 B 72 19:0 | 71 19-5 || 71 46-0 70 50-0 ||\71 33-62 71 26-09
Oct. 31 22 50 || 25 2 46 | A | 71 2-0 | 72 44-5 || 69 58-0 | 71 26-5 ||71 17-75 ;
Nove | 70 0 25 2 49 A 71 6-0 | 72 41-5 || 70 0-0 71 28-5 ||71 19-00
Nov. 3 22 50 25 2 35 B 72 42:0 | 71 20:5 || 71 48-0 70 31-5 ||71 35-50
Nov. 4 4 40 20 2 52 B 72 41:5 | 71 20-0 || 71 58-0 70 36-0 ||71 38-87 71 28.87
Noy. 6 22 20 25 2 50 A 71 19-5 | 72 21-0 || 70 21-5 71 25-0 || 71 21-75 '
Nov. 7 4 30 tee 2 51 A 71 9-5 | 72 18-5 | 70 24-5 71 25-0 || 71 19-37
Noy. 10 23 0 20 2 46 B 72 29-0 | 71 18-0 || 71 50-0 70 42-0 171 34-75
Noy. 11 4 50 20 2 47 B 72 27-5 | 71 16-5 || 71 51-0 70 43-0 ||71 34-50 71 27.87
Nov. 14 .0..0 || 20 2 42 | A | 71 23-0 | 72 13-0 | 70 30-0 | 71 19-0 ||71 21-25 ;
Noy. 14 4 45 20 2 42 A 71 21-0 | 72 12-0 || 70 32-0 71 19-0 ||71 21-00
Noy. 18 23 40 20 2 49 B 72 26-5 | 71 22:0 || 71 56-0 70 44-5 ||71 37-25
Nov. 19 4 45 20 2 46 B 72 26:0 | 71 22-5 || 71 46-5 70 50-0 ||71 36-25 71 27-65
Nov. 20 22 30 20 2 39 A 70 57-5 | 72 27-0 || 70 21-5 71 38-5 ||71 21-12
Nov. 21 7 20 25 2 33 A 70) 51-5 | 72) 27-0 ||| 70 5-0 71 40-5 ||71 16-00+
Nov. 21 22 30 25 2 35 A 70 53-5 | 72 21-0 || 70 24-0 71 37-5 |71 19-00
Nov. 22 4 40 || 25 2 39 | A || 70 57-0 | 72 20-5 | 70 15-5 | 71 35-0 71 17-00 71 96-28
Noy. 24 23 25 20 2 44 B 72 40:0 | 71 12-0 || 71 56-0 70 31-0 ||71 34-75 i
Nov. 25 4 25 20 2 44 B 72 36-5 | 71 13-0 || 71 52-0 70 36-0 ||71 34-37
Noy. 27 23 0 25 2 46 A 70 58-0 | 72 20-0 | 70 14-5 71 33-5 ||71 16-50
Nov. 28 4 30 22 2 48 A 70 53-5 | 72 19-0 |) 70 17-5 71 38-0 ||71 17-00 71 26-18
Dec. 1 23 25 50 2 40 B 72 48-0 | 71 10-0 || 71 51-5 70 33-0 || 71 35-62
t Observation not satisfactory.
Oct. 224 55, Instrument rather out of level.
Oct. 244 02, Levelled the instrument.
Dec. 14 235, Observation unsatisfactory, lifter getting unsteady.
ie i D
OBSERVATIONS OF DEFLECTIONS FOR THE ABSOLUTE HorIzoNTAL INTENSITY, 1845. 133
Gatti DEFLECTING Bar. DECLINOMETER. BIFIvar.
Ottingen : Deflection a memes |maaeee
M Ti Unifilar : Log.
hae a Distance N. | Tempe-|| Observed Reduced Reading. Sees d for nen Ther- 4 7 tee U.
Observation. =, End, | rature. || Reading. ae OUBLOT Lee ee
d. him. Feet ° Sc. Diy. | Sc. Div. Se. Diy. PNT a oe
Dec. 29 2 27 nJ| E | 40-7 || 6-04 | 6-73 | 479.24 545-5 | 36-0
7 re w | 393 || 616 | 6-87 | 37-34 > | 5446 | 36-4 ||
425 | 08) (| E | 405 | 712 | 7.93 | 478.09 |(? 28 1)? | 547-6 | 37.0 |7 04520220
3 23 1}w|396\|| 636 | 7.09 || 39-75 544.6 | 36-4
2 33 ig E | 40-0 || 6-04 | 673 || 459-93 546-0 | 36.0
3 12 w | 39.4| 630 | 7.02 | 57-61 544-4 | 36.4
419] >?) j| B | 40-7 | 710 | 7.01 || 458.04 a 14 10-5 I 547.7 | 37.0 |¢ 04524765
3 26 w| 39-7] 634 | 7.06 || 59-75 544.4 | 36.5
2 36 . E | 400 | 5-87 | 6.54 || 433.02 545.9 | 36.0
3 8 w | 39-3 || 653 | 7.98 || 84.00 544.7 | 36.3
«jo EY wi| E | 409 | 7-21 | 8.04 || 432.66 1 57 140 |) 546.4 | 36.9 |¢ 04927822
3 29 w | 39-7] 628 | 7.00 || 95-55 544.2 | 36.5
2 40 = E | 39-9 | 6-00 | 6.69 || 290-19 546-0 | 36-1
3 0 ; w | 39-3] 637 | 7.10 || 296.99 ,. | 5449 | 36-3
55) | Meio! wi| E| 40-4 || 718 | 8.00 || 291-21 0 21 226 | 546.0 | 36.9 |( 4938295
3 36 w| 39-7] 6-35 | 7.08 || 297-02 543-9 | 36-5 |
2 44 Bf E | 39-7 || 617 | 688 || 289.01 545-3 | 36-1 |
2 57 ; w| 3931 656 | 7-32 || 298.42 544.6 | 36.2
Goad | 7279) | By | 403 | 7-05 | 7-86:| 290-01 |(° 2° 359 || 545-1 | 36.8 | °4°4849
3 39 w | 39-7 | 647 | 7.21 || 298.33 543-8 | 36-6
2 48 Ze E | 39-7 || 6-36 | 7-09 || 985-91 544-6 | 36-1
2 52 w| 39-7 || 6-41 | 7.14 || 231-66 544-6 | 36.2
3 51 |10-250 wi| E | 40-0 || 695 | 7-75 || 286.37 018 140 | 544.6 | 36-7 |¢ 04554807
3 42 | w| 39-71] 661 | 7.37 || 232.07 543-5 | 36-7
(Diff.)
Se. Div.
2 10 nee 5-44 | 6-06 || 257.52 251-46
4 32 en y 7.25 | 8-09 || 259-65 251-56
Dec. 30 2 43 5 E | 48.0 || 23-11 | 25-76 || 496.39 539-4 | 469
4 35 w | 404 || 9-67| 10-78 | 20-59 540-4 | 47-1
Bae 2 008 w| E | 47:8 || 23-30 | 25.97 | 496-79 2 35 25-2 || 536.9 | 46.9 | 04509181
4 45 WwW | 40-5 | 13-27 | 14.79 | 23-93 537-0 | 47-1
3 41 el E | 486] 439] 4-89 | 418.29 551-8 | 47-0
4 31 wi 406! 368! 9.68 | 76-53 541-0 | 47-1
ag | 0? w5| E | 47-8 | 22-53 | 95.11 | 439.21 156 50:8 | 5441 | 46.9 |( 0:4918898
3 35 wi 4382/1 851! 948 | 76-53 554-6 | 47-0
3 49 = E | 48-7 || 421] 4-69 || 378.54 544-6 | 47-0
87 ||. w| 4101 3848| 9.45 | 115-91 sara | 471
pg | 0-000 w| Z| 47-9 | 21-13 | 23-55 | 397-89 |? 30 8-4 | 546.5 | 46.9 |( 9-4523740
3 31 w| 48-0] 9-41 | 10-49 || 117-22 550-6 | 47.0
3 53 - E | 48-8] 412] 4.59 || 350-00 546-3 | 47-0
4 23 wl 41-0] 7.26] 98-10 || 143-02 541-5 | 47-1
3 7 | 6500 w5| £ | 48:0 || 19-42 | 21-64 || 367-49 |! 1° 573 | 546.7 | 46.9 |( 94527087
3 28 w | 47-9 || 10-39 | 11-58 || 146-77 549-8 | 47.0
3 56 ‘ E | 48.7 3.32] 3-70 || 328.29 546-9 | 47.0
4 19 w| 423 652] 7-27 | 163-12 541-4 | 47-1
3 11 | 7000 w| E | 48-0 | 17-38 | 19:37 || 344.41 0 56 53-4 | 547.9 | 46.9 | 04933288
3 25 w | 47-8 || 11-70 | 13-04 | 169-09 548.2 | 46.9
| 0 2 E | 48-4 | 9236] 2.63 || 311-43 543-2 | 47.0
| 4 13 w | 460] 5-75 | 641 || 177-90 541-5 | 47.0
! pei | 7 PC8 see | 480 | 15-92 | 17-74 || 396.94 | ° 46 173 | 5475 | 46.9 |y 0-4536889
ig 3 22 Ww | 478 || 12-65 | 14-10 | 185-86 548-0 | 46.9
4 . E | 48-5 | 2.99] 3-33 || 300-43 540-5 | 47-0
4 9 w| 462) 4571 5-10 || 188-76 540-1 | 47.0 fe.
3 17 | 8-000 w/| E | 480 | 14-73 | 16-41 | 313-59 0 38 13-9 | 546.5 | 46.9 |¢ 04546369
3 20 Ww | 47-9 || 13-87 | 15-46 || 199-16 547-1 | 46-9
(Dift.)
Se. Div.
2 20 4.18 | 4.66 || 245-34 240-68
4 52 ME SI Egy | 16-59 | 18.49 || 258.87 240-38
MAG. AND MET. ogs. 1845. 21.
oe
134 OBSERVATIONS OF VIBRATIONS FOR THE ABSOLUTE HORIZONTAL INTENSITY, 1845.
N. END oF MAGNET MOVING E. N. END oF MAGNET MOVING W. BIFILAR.
Date. No. Time No. Time Time of || No. Time No. Time Time of || Time | Read- | Ther-
of of of of one of of of of one of ing | mome-
Vib Transit. | Vib. Transit. Vib Vib.| Transit. | Vib.| Transit. Vib. Obs. Cor. ter.
ih. aoe) [ge Msn eae 5 m. Ss. m. 8. s. h. m. | Se. Div. <
0/5 15 53-4 | 70|)5 34 09 15-536 1/16 82) 71)34 15.3 15-530 || 5 21 | 549-2 | 37-7
6 17 26-5 76 35 34-1 BBA 5/17 10-4) 75/35 17-3 527 33 | 548-9
10 18 28-7 | 80 36 36-2 536 || 11 | 18 43-6 | 81/36 50-4 526 38 | 548-3
16 20 2:2 | 86 38 9.4 531 15 | 19 45-7 | 85) 37 52-4 524 47 | 549-1
20 21 43 | 90 39 11-6 533 || 21. |21 18-8 | 91|39 25-6 526 52 | 548-9
26 22 37-4 | 96 40 44-8 534 || 25 |22 21-2 | 95) 40 27-7 521
30 23 39-6 | 100 41 46:9 533 || 31 | 23 54-3 |101)42 0-8 521 || Mean | 548-9
Dec. 29] 36 25 12-8 | 106 43 20-0 531 || 35 |24 56-4 |105/43 2-7 519
40 26 14-8 | 110 44 22.1 533 || 41 | 26 29-6 | 111|44 35-9 519
46 27 48-3 | 116 45 55-5 531 || 45 |27 31-7 |115|45 38-0 519
50 28 50-3 | 120 46 57-6 533 || 51 |29 4-8 |121|47 11-0 517
56 30 23-6 | 126 48 30-7 530 || 55 |30 6-7 | 125/48 13-1 520
60 31 25-7 | 130 49 32-9 531 || 61 | 31 39-9 |131|49 46-2 519
66 32 58-9 | 136 51 6-0 530 || 65 | 32 42-0 |135|50 48-4 520
Mean observed time of one vibration = 1585274. Semi-arc of vibration, commencing 6°, ending 2°. Temperature
of magnet, 40°°0.
0|7 43 27-4 | 50/7 56 28-6 15-624 1 |43 41-6 | 51/56 41-5 15-604 || 7 45 | 543-6 | 46-6
6 45 1-3] 56 58 2-3 620 5 | 44 44-1 55|57 44-3 604 50 | 546-3
10 46 3-7 | 60 59 4-8 622 || 11 |46 17-8 | 61)|59 17-7 598 55 | 541-1
16 47 37-4 | 66/8 0O 38.4 620 | 15 |47 20-3 | 65| O 20-0 594 || 8 2 | 534-0
20 48 39-9 | 70 1 40-9 620 | 21 |48 53-8 | 71] 1 53-4 592 5 | 533-1
Dec. 30]|| 26 50 13-7 | 76 3 14-7 620 | 25 |49 56-4 | 75| 2 55-7 586
30 51 16-2 | 80 4 17-1 618 | 31 |51 30-0 | 81| 4 29-0 580 || Mean | 539-6
36 52 49-8 | 86 5 50-8 620 || 35 | 52 32-3 | 85] 5 31-4 582
40 53 52-4 | 90 6 53-3 618 || 41 |54 5-9] 91] 7 4-6 574 |
46 55 26-0 | 96 8 27-0 620 || 45 |55 8-4 | 95| 8 6-7 566
Mean observed time of one vibration = 15*6041. Semi-are of vibration, commencing 6°, ending 13°. Temperature
of magnet, 48°-4.
0/8 52 4-7 | 60|/9 7 38-6 15-565 1 |52 20-6} 61] 7 54-3 15-562 | 8 55 | 538-8 | 46-3
6 53 38-3 | 66 9 12-0 562 5 |53 22-7 | 65| 8 56-6 565 | 9 2 | 539-3
10 54 40-6 | 70 10 14:3 562 || 11 |54 56-2 | 71/10 30-0 563 5 | 539-0
16 56 13-8 | 76 11 47-6 563 || 15 |55 58-4 | 75)11 32-3 565 11 | 538-8
20 57 16-2 | 80 12 50-0 563 || 21 157 31-8 | 81/13 5-7 565 15 | 538-4
Dec. 30] 26 58 49-6 | 86 14 23-4 563 || 25 |58 34-2 | 85/14 8-1 565 | 20 | 537-8
30 59 51-8 | 90 15 25-7 565 || 31 0 7-5 91|)15 41-5 567 |
36 19 1 25-2 | 96 16 59-1 565 || 35 1 9-7 | 95|16 43-8 568 | Mean | 538-7
40 2 27-4 | 100 18 1-4 567 || 41 2 43-1 |101}18 17-3 570
46 4 0-8 | 106 19 34-8 567 || 45 | 3 45-4 |105)19 19-6 570
50 5 3-0 | 110 20 37-0 567 || 51 5 18-7 | 111} 20 52-9 570 |
56 6 36-4 | 116 22 10.4 567 || 55 | 6 21-0 | 115] 21 55.4 573 ||
Mean observed time of one vibration = 1555658, Semi-are of vibration, commencing 5}°, ending 14°. Temperature ;
of magnet, 47°°6.
- HOURLY METEOROLOGICAL
= | OBSERVATIONS.
MAKERSTOUN OBSERVATORY,
1845.
136
Gott BAaRO-
Mean METER
Time at 32
ily re in
0 13 || 29-999
14 || 30-004
15 013
16 013
17 010
18 009
19 008
20 017
21 038
22 050
23 052
110 051
1 044
2 041
3} 038
4 040
5 041
6 039
7. 036
8 042
9 042
10 042
11 035
12 037
13 || 30-021
14 014
15 010
16 || 30-004.
17 || 29-981
18 969
19 962
20 957
21 954
22 956
93 941
2) 0 923
1 903
D) 876
3 857
4 838
5 819
6 799
7|| 781
8 aaa
9 760
10 745
11 727
12 708
13 || 29-676
14 667
15 664
16 649
17 625
18 610
19 590
20 592
HourLty METEOROLOGICAL OBSERVATIONS, JANUARY 0—2, 1845.
THERMOMETERS.
Dry. | Wet. | Diff.
30-9 | 30-7 | 0-2
31-2 | 31-0 | 0-2
29-3 | 29-5 | -:-
28-2 | 28-4 | ---
29-4 | 29.2 | 0-2
28-8 | 28-8 | --:
33-4 | 32-1
34-2 | 32-7 | 1-5-
WIND.
Maximum
force in
Ts, 10™:
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.= 8, S.= 16, W. = 24.
s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
motions of the three strata of clouds, Se. (seud), ©
Jan. 0¢ 16 4m,
Jan. a 212,
Observation made at 21» 5™.
Clouds,
Sc.: C.-s.: Ci.,]]| Sky :
ion moving _|/clouded. Species of Clouds and Meteorological Remarks. —
from
pt. pt. pt. pt. 0—10.
18 2-5 | Cirro-cumulo-strati.
20 8-2 Id.
20 1-0 Td: faint aurora to N 2?
20 | 20:—:—|| 1-0 | Misty scud ; cirro-cumulo-strati; aurora to N 2
17 |—: 8:—]| 6-0 | Cirro-eumulo-strati; fog just gone.
20 |—: 8:—]| 5-0 Id. ; lunar corona.
24 3-0 ile id.
22 3-5 | Cirro-cumulous seud.
92 ||—: 4:—]| 6-0 Id.
24 i Fa Id.
22 |—: 6:—|| 7-0 Id.
20 |—: 6:—|| 9-0 | Cirro-cumulous scud.
22 2 7-0 | Cirro-cumulous scud ; woolly cirri.
96 | —:10:— 8-0 | Cirro-cumulous scud; cirro-cumuli.
23 |/—:10:—}| 9-0 liek ¢ id.
18 | 10:10:—j| 9-8 | Seud; cirro-cumulous seud ; drops of rain.
92 |10:10:—]|| 9.8 ide id.
20 10-0 diss id.
20 10-0 Id.; dark.
18 10-0 (cee arts
10-0 idise jad:
17 10-0 Id.
18 10-0 Id.
30 10-0 Id.
20 10-0 Id. ; rain?
18 10-0 Id.
17 10-0 Id.
17 10-0 Id.
20 10-0 Id.
18 9-9 Id.
17 10-0 Id.
—: &:—] 9-8 | Cirro-cumulous seud: stratus.
4 ||—: 7:—]| 2-5 Id: .: id.
6 ||\—: 8:—|]| 9-8 | Cirro-stratous scud: id.; objects invisible at 1 m
24 |}—: 7:—|| 9-9 Id.
20 |—: 6:—|| 9-9 tar; very thin fog.
20 8-0 | Seud; cirro-cumulous scud; drops of rain.
20 9-8 Td; id. ; slight fog.
12 || 4:——:— || 9:6 Id. ; id. ; drops of rain.
12 | 4:—:—j] 9-7 | Seud; slight fog.
17 |—: 4:—|| 9-9 | Cirro-stratous scud; fog denser.
26 10-0 Id.
20 10-0 Id.
21 9-9 Id. 5 stars dim.
16 10-0 Id.
18 10-0 Id. 4
24 10-0 Id. Kelso bells heard (4 miles distant.)
20 10-0 Id.
22 2-0 | Scud to E. and N.
18 10-0 | Seud.
20 10-0 Id.
21 10-0 Id.
20 10-0 Id.
20 10-0 Id.
18 10:0 ; Id.
20 10-0 Id.
Patches of misty scud moving very quickly from SW. (20.): 165 8™, fog rapidly covering the sky, forming al
corona ; a lunar fog-bow opposite the moon of 40° span, and less than 20° altitude. Fog moved off about 17» 0™.
HovurLty METEOROLOGICAL OBSERVATIONS, JANUARY 2—6, 1845. 137
THERMOMETERS. WIND. Clouds
eutt. | Bano- Nias Se.: C.-s. aor Sky
. ag 30°. Dry. | Wet. | Diff. ee: a rom yoee clouded. Species of Clouds and Meteorological Remarks.
14,|10™,
iS h. in. R 2 2 lbs, Ibs. | pt. || pt. pt pt 0—10.
2 21 || 29-589 || 34-7 | 33-3 | 1-4 | 0-2 | 0-1 | 18 || 20:—:—| 10.0 Nearly homogeneous seud.
22 589 || 35-2 | 33-7 | 1-5 || 0-1 |0-1 | 21 10-0 Id.
- 23 579 ||36-0 | 34-8 | 1-2 ||0-4 |0-4 | 21 |} 21:—:—J| 10-0 inch drops of rain.
3 0 572 || 36-9 |35-9 | 1-0 || 0-7 | 0-4 | 22 || 21:—:—]| 10.0 Id. ; slight shower of sleet since last observation.
1 561 || 37-6 | 36-4 | 1-2 || 0-4 | 0-7 | 21 || 21:—:—J]| 10-0 Id.
2, 545 || 38-0 | 37-0 | 1-0 || 0-6 |0-7 | 20 10-0 Id.
3 554 || 39-0 | 38-0 | 1-0 | 1-2 |0-8 | 20 | 22:—:—| 10-0 Seud ; cirrous mass.
4 563 || 39-2 |38-1 /1-1 || 1-0 |0-2 | 20 |) 20:—:—] 9-5 Id.; cirro-cumuli; cirrous mass.
5 577 || 39-4 |38-1 |1-3 0-4 |0-3 | 22 || 22:—:— 9-9 Id.; cirro-strati.
6 586 || 38-9 | 38-2 |0-7 ||0-6 |0-1 | 21 9.0 leks id.
7 606 || 38-0 | 37-3 |0-7 ||0-2 |0-1 | 20 6-0 Scud, cirro-strati; stars dim.
a8 623 || 36-7 | 36-1 |0-6 || 0-1 |0-0 | 20 9-0v.|| The same.
9 650 || 38-6 | 37-7 |0-9 |/0-1 | 0-0 | 22 7-0v. Id.
10 669 || 38-3 |37-5 |0-8 || 0-0 |0-0 | 18 9-5 Id.
11 691 || 36-3 | 35-7 |0-6 || 0-1 |0-0 | 14 0-8 Cirri.
12 707 || 36-5 | 36-0 |0-5 || 0-1 |0-0 | 20 0:8 Id.
13 || 29-730 || 37-4 | 36-2 | 1-2 ||/0-1 |0-1 | 20 0-2 Thin cirri on E. horizon.
14 741 ||37-2 | 35-9 | 1-3 || 0-2 |0-3 | 21 0-0
15 758 || 36-9 | 35-5 | 1-4 10-3 |0-4 | 21 0-0
16 773 || 38-5 | 36-7 |1-8 || 0-6 |0-3 | 21 0-2 Thin cirri on W. horizon.
17 791 || 37-5 |36-0 | 1-5 ||0-3 |0-3 | 22 0:0
18 800 || 38-8 | 36-4 | 2-4 ||0-6 |0-5 | 24 0-2 Thin cirri on N. and S. horizon. »)
19 816 || 35-0 | 33-8 |1-2 ||0-3 |0-0 | 16 0-1 Faint lunar corona. y
20 833 || 34-6 | 33-3 | 1-3 ||0-1 |0-0 | 20 0-3 GbE thin cirri, scud on Cheviot. y
21 843 || 34-5 | 33-2 |1-3 || 0-1 |0-0 | 20 4.0 Patches of scud ; cirrous haze.
22 850 || 35-6 | 34.3 | 1-3 || 0-1 | 0-0 | 22 3:0 Light cirri and cirrous haze. (0)
23 842 || 37-1 | 35-7 | 1-4 || 0-4 | 0-2 | 20 9-0 Cir. and cir. haze over the sky; traces of ahalo. ©
0 836 || 38-0 | 36-6 | 1-4 |/0-2 |0-1 | 22 10-0 Cirrous clouds, becoming very dense.
1 813 || 38-6 | 37-0 |1-6 ||0-3 | 0-3 | 17 || —:22:—]| 10-0 Dense cirro-strati.
2 789 ||39-5 |37-9 | 1-6 || 1-2 |0-4 | 20 || 22: 22?:—/| 10-0 Seud : dense cirro-strati.
3 768 || 39-8 | 38-2 |1-6 |/1-7 |0-9 | 19 || 22:—:—|| 10-0 Td. ; id.
4 742 || 41-0 |39-3 | 1-7 || 1-0 |0-8 | 20 || 21:—:—|| 10-0 Scud; dense homogeneous mass,
5 726 ||41-6 | 39-7 | 1-9 || 3-5 |1-3 | 19 || 21:—:—J] 10-0 As before.
6 708 || 41-1 | 39-3 |1-8 || 2-0 |0-8 | 20 10-0 Id.
7 681 || 42-3 | 40-4 |1-9 ||2-3°] 1-7 | 20 10-0 Id.
8 661 ||43-2 | 41-1 |2-1 ||2-7 | 1-5 | 20 10-0 Id.
9 624 || 43-4 | 41-4 | 2-0 || 3-2 |3-8 | 20 10-0 Id.; very dark.
10 602 || 43-7 | 41-8 | 1-9 || 3-4 | 2-5 | 20 10-0 Id. ; id.
11 543 || 44-4 | 42-7 | 1-7 113-5 | 2-0 | 20 10-0 Id.; light band on N. and S. horizon.
12 518 || 44-3 | 42-8 | 1-5 113-7 | 3-6 | 20 10-0 Id.; clouds broken.
23 || 29-561 || 50-4 | 48-3 | 2-1 |/3-5 | 1-8 | 22 ||23:—:—|| 10.0 Scud ; dense cirro-strati.
13 || 29-445 || 48-3 | 46-6 | 1-7 || 5-2 | 2-6 | 20 10-0 Seud; rain 9?
14 441 || 47-9 | 46-7 | 1-2 ||3-6 |2-9 | 20 10-0 Id. ; drops of rain.
15 445 ||47-9 |46-7 | 1-2 || 3-0 | 2-4 | 19 10-0 Id. ; id.
16 431 ||47-6 | 46-3 | 1-3 || 3-8 | 2-2 | 19 10-0 Id. ; id.; very dark.
7 427 || 48-9 | 47-4 |1-5 ||3-2 |2-3 | 20 10-0 As before.
18 441 || 49-0 |47-5 | 1-5 || 2-6 | 1-9 | 20 10-0 Id.
19 480 || 50-0 | 47-0 | 3-0 1 {1-4 | 21 4-0 Seud ; cirro-strati.
20 528 || 50-2 |46-5 | 3-7 || 1-9 |1-6 | 24 || 24:—:—|| 9.0 eke id.
21 587 || 47-6 | 43-4 |4-2 || 1-9 | 1-6 | 23 ||24:22:—|| 6.0 Scud; cirro-strati; cirri.
22 638 || 45-8 | 42-0 | 3-8 || 1-7 |1-0 | 22 || 24:—:22]) 8-0 Seud ; woolly cirri and cirro-strati.
23 681 || 45-8 |42-0 |3-8 || 1-1 |0-5 | 23 ||24:—:21 9-0 Id. ; id., lying WSW. to ENE. =)
6 0 703 || 45-0 | 40-7 |4-3 || 1-4 |0-7 | 23 || —:—:22]| 8.0 Id. ; id., id, S)
725 |144-2 |40-2 |4-0 11-0 11-1 | 22 ||—:—:22]| 8.5 Id.; id., id. rs)
;
The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, H. = 8, S.=16, W.= 24. The
motion of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
MAG. AND MET. oss. 1845. 2™M
138
HourLy METEOROLOGICAL OBSERVATIONS, JANUARY 6—8, 1845.
THERMOMETERS. WIND.
Gott. || Baro- Clouds, —
Mean || METER Maximum eae 1 ha a Species of Clouds and Meteorological Remarks.
Time. || at 32° Dry. | Wet. | Diff. force in |pPyom pi clouded.
rom
14, , 10,
Gly | tae in. g 2 e Ibs. | Ibs. | pt. pt. pt. pt. 0—10.
6 229-771 || 44-7 | 40.0 | 4-7 | 0.4 | 0-2 | 22 ||} 26:—:22|) 9-0 | Scud; woolly cir. and cir.-str., lying WSW. to ENE. €
3 790 ||44-7 |40-0 |4-7 |10-3 | 0-3 | 22 ||26:—:22]} 9-0 Patches of scud ; woolly cirri; cirro-strati. 2)
4 815 || 42-2 | 38-8 |3-4 0-3 |0-2 | 23 | —:—:22]} 9-5 || Woolly cirri; cirro-strati; haze.
5 838 || 41-0 | 37-9 |3-1 || 0-2 | 0-2 | 18 7-0 Idt 3 id. ; id.
6 862 || 36-8 | 35-2 |1-6 ||0-1 | 0-0 | 22 8-0 ids; id. ; id.
7 884 || 37-0 | 35-3 | 1-7 ||/0-1 | 0-0 | 20 7-0 || As before.
8 899 || 35-3 | 34-0 | 1-3 |/0-1 | 0-1 | 21 5-0 Id.
9 928 || 34-8 | 33-7 | 1-1 || 0-2 | 0-1 | 10 4-0 Id.
10 938 || 32-5 | 31-8 |0-7 || 0-1 | 0-0 | 17 4-02 Id.; stars dim.
11 948 || 31-4 | 30-9 |0-5 || 0-0 | 0-0 | 16 2-0 || Cirri and cirrous haze.
12 951 || 31-2 | 30-8 |0-4 0-0 | 0-0 | 16 4-0 Id.
13 || 29-953 || 31-2 | 30-9 |0-3 ||0-1 | 0-0 | 20 7-0 || Cirri and cirrous haze.
14 958 || 32-3 | 31-8 |0-5 0-0 | 0-0 | 20 8:0 Td.
15 959 || 32-9 | 32-1 |0-8 0-0 | 0-0 | 22 4-0 Id.
16 958 || 32-8 | 32-2 |0-6 ||0-0 | 0-0 | 20 10-0 Id.
17 955 ||33-6 | 32-9 |0-7 ||0-0 | 0-0 | 24 10-0 Tdhs drops of rain.
18 952 || 33-7 | 33-1 |0-6 0-0 |0-0 | 24 10-0 || Rain %,
19 958 || 34:0 | 33-6 |0-4 || 0-0 |0-0 | 20 10-0 || Cirri, &c.; Rain °°’; a few stars very dim.
20 966 | 34-3 | 33-8 |0-5 | 0-0 |0-0 | 21 10-0 Id. id,
21 967 || 34-2 | 33-7 |0-5 || 0-1 | 0-0 | 20 || —: 23: 10-0 || Cirro-stratous scud ; cirro-strati.
22 973 || 34:8 | 34-3 |0-5 ||0-1 |0-0 | 20 9-9 || Mass of cirro-stratus.
23 983 || 35-6 | 35-0 | 0-6 || 0-1 | 0-0 | 20 9-8 || Thick mass of wavy cirro-stratus.
iw 987 || 37-2 | 36-3 |0-9 ||0-1 | 0-2 | 24 9-8 || Cirro-stratous scud ; cirro-strati; cirri.
1 972 || 38-0 |37-2 10-8 ||0-1 |0-0 | 27 ||: 22:—|| 9-0 || Cirro-eumuli; cirro-strati; cirrous haze. C
2 947 || 38-3 | 37-4 |0-9 ||0-1 | 0-0 | 16 || —:22:— 3-0 || Wo. cir.-cum; stratus to E. ; cir.-str. scud ; cir. haze.
3 966 ||38-3 | 37-3 |1-0 ||0-1 |0-0 | 27 1-5 || Linear cirri; stratus to E. and S.
4 968 ||35-5 | 35-0 |0-5 |0-1 | 0-0 | 20 1-5 id: id, 3 cirro-strati.
5 959 33-3 | 33-0 |0-3 || 0-0 | 0-0 2.5 || Woolly ee 2 id. : id.
6 957 || 30-9 | 30-7 |0-2 || 0-0 |0-0 | 22 2.0 || Cirro-strati and cirri on horizon.
i 962 || 31-1 | 30-9 |0-2 ||0-0 |0-0 | 24 6-5 || Cirrous clouds.
8 969 || 32-6 | 32-2 |0-4 ||0-0 | 0-0 10-0 Id.
9 965 || 33-0 | 32-6 |0-4 | 0-0 | 0-0 | 24 10-0 || Dark.
10 968 || 34-1 | 33-9 |0-2 | 0-0 |0-0 | 22 10-0 Id. ; fine particles of rain.
11 963 || 34-5 | 34-2 |0-3 || 0-0 | 0-0 10-0 || Dense fog.
12) 964 || 34-9 | 34-5 |0-4 | 0-0 |0-0 | 22 10-0 Id.
13 || 29-960 || 35-0 | 34-7 | 0-3 || 0-0 | 0-0 10-0 || Fog clearing away.
14 950 || 35-2 | 34-8 | 0-4 ||0-0 | 0-0 10-0
15 946 || 35-2 | 34-8 | 0-4 ||0-0 | 0-0 | 24 10-0 || Dark.
16 926 ||35-7 | 35-2 |0-5 ||0-0 | 0-0 10-0 Id.
17 914 || 36-2 | 35-8 |0-4 10-0 | 0-0 | 20 10-0 Id.
18 908 || 36-5 | 36-1 |0-4 ||0-0 | 0-0 10-0 Id.
19 909 || 37-0 | 36-6 |0-4 ||/0-0 |0-0 | 22 10-0 Id.
20 909 || 37-3 |36-9 |0-4 10-0 |0-0 | 28 || —:20:— 9.9 || Cirro-stratous scud ; cirro-strati.
21 917 || 39-6 | 39-2 |0-4 || 0-0 |0-0 | 16 ||} —:17:— 9.9 Id.
22 912 ||41-9 | 41-0 |0-9 || 0-0 |0-0 | 16 ||16:16:—|| 3-0 || Masses of scud and cirro-strati.
23 911 ||41-7 |40-7 | 1-0 ||0-1 | 0-0 | 20 || 16:—:12]} 2-0 || Scud; loose cumuli; cirri; cirro-strati.
re) 899 || 43-3 | 42-1 | 1-2 10-0 | 0-0 | 18 ||} 16:—:— 2-0 || Scud; loose cumuli.
1 879 || 42-0 | 40-8 | 1-2 ||0-5 |0-3 | 14 || 17:—:14]| 4-5 Mel ides woolly cirri; cirrous haze.
2 874 || 43-3 |41-6 | 1-7 || 0-4 |0-2 | 15 || 17:—:15]| 6-0 Id. ; id. ; cirro-strati; cirri; cirrous haze.
3 865 || 40-7 | 39-4 | 1-3 || 0-2 |0-2 | 16 || —:16:— 9-7 || Dense cirrous clouds and haze. ,
4 865 || 40-6 |39-1 |1-5 0-5 |0-1 | 16 || 18: —:— 9-8 || Scud; woolly cirrous clouds, very low; much haze.
5 864 || 40-3 | 38-6 | 1-7 || 0-3 | 0-0 4)17:—:— 8-0 || As before. :
6 873 || 35-3 |34-7 |0-6 ||0-1 | 0-0 | 18 3-0 || Cirro-strati; haze.
7 864 | 32-7 | 32-3 |0-4 |/0-1 | 0-0 | 16 0-2 || Patches of light clouds to W.
8 870 || 32-8 | 32-2 |0-6 || 0-0 | 0-0 | 20 0-5 || Haze round horizon.
9 870 | 32-3 |31-7 |0-6 ||0-1 |0-0 | 23 0-5 Id. ; patch of scud to H.
Jan. 64 8b, Jt was found that the balancing weight of the anemometer acted at about two inches from the extremity of the spiral
the index was at 0; the indications for some time must consequently have been rather too small :
was now ehoerencal so as to allow the weight to act correctly.
Jan. 74 22h,
same point.
Masses of loose cirro-stratus evaporating very rapidly, whilst scud is forming as quickly; both currents moving from the
wh
the suspending cord of the inner a
HovurLy METEOROLOGICAL OBSERVATIONS, JANUARY 8—10, 1845. 139
‘ime, || at 32°. Dry. | Wet. | Diff.
734 || 43-3
734 || 42-3
708 | 30-8
706 || 30-7
684 || 28-7
10 655 || 29-0
11 632 || 29-9
12 616 || 30-3
13 || 29-601 || 29-1
14 568 || 28-8
15 551 || 34:9
16 043 || 35-4
17 520 || 36-3
18 505 || 38-0
19 491 || 38-4
20 486 || 38-8
21 466 || 38-9
22 458 || 39-7
23 457 || 41-2
436 || 41-7
398 || 43-0
374 || 42-8
340 || 43-2
311 || 43-2
43-2
254 || 43-6
223 || 44-0
201 || 43-9
160 || 45-3
10 116 || 45-4
079 || 47-0
12 060 | 46-7
13 | 29-049 || 47-0
14 044 || 46-9
15 045 | 46-9
16 044 || 47-7
OOWIHeTKRWNH S&S
bo
(ee)
Ne)
oy
—
32-0
31:8
30-4
30-5
29-9
29-5
29-9
43-2
44-3
44:5
44.8
45-0
45-1
46:0
THERMOMETERS.
ee Ww Bw
Maximum
WIND.
force in |from
308
10™,
Clouds,
Se. :C.-s.: Ci.,
moving
pt.
STTTi1s
from
pt.
pt.
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Cirri and haze on horizon.
Cirri radiating from SW. and NE.
Id.
Cirri; stars dim.
Id. ; id.
Thin cirri; stars dim.
Cirri thicker; id.
fide
Cirri radiating from SW. and NE.
Seud ; cirro-strati.
Id. ; id.
Cirro-cumuli; cirro-strati; cirri; red to SE.
ifehe id. ; id.
Woolly cirri; cirro-strati; haze.
Id. ; (65.5 id.
Id. ; der id.
Sky nearly covered with woolly cirri.
d
ids: cirro-strati.
Cirro-strati; cirri lying NE. to SW. since 84 185.
Thin cirri.
Band of thin cirrus; faint aurora to N.
IGE fine auroral arch.
Id. ; bright aurora.
Id. ; id.
Cirro-strati to N. ; id.
Id. to NW.
Cirro-strati to N.
Id. to N.; aurora obscured.
Cirro-strati, cirri, and haze.
Cirro-strati and cirrous haze.
Id.
Td.
id? cirri radiating from SW. |
Cirro-stratous scud? reddish to SE.
Seud; cirro-cumuli; cirro-strati; cirri; red to SE.
Cirro-cumulous scud ; loose scud ; cirro-strati; cirri. Qj
As before ; scud on Cheviot.
Scud ; cirro-strati; cirri.
~yvEe6sge000
Id.; woolly cirri; cirro-strati. @
Id. ; cirro-strati; cirri.
Id. ; id.
Id. ; id. ; cirrous mass.
Td. ; id. ; id.
Id. ; id. ; cirrous haze. }
Scud and cirro-strati.
Td.
Id. ; rain”
Id. ; rain’?
Id. ; id.
Id. ; clouds broken.
Scud and cirro-strati; rain”?
Id. ; id.
Id. ; stars dim.
Id. ; rain! ®
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.=8,8.=16,W.= 24. The
_ Motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
140 Hovurty METEOROLOGICAL OBSERVATIONS, JANUARY 10—13, 1845.
THERMOMETERS. WIND. @louds
uaa Hee Se. :C.-s.:Ci.| Sky
Mean || METER Maximum Thovins’ llclonfad: Species of Clouds and Meteorological Remarks.
Time. || at 32°. | Dry. | Wet. | Diff. force in |Prom eee
14, ) 10,
do ih: in. 2 2 Rs Ibs. | lbs pt. pt. pt. pt 0—10.
10 17 || 29-031 || 47-2 | 46-1 | 1-1 || 3-0 | 2-0 | 17 10-0 || Scud and cirro-strati; rain?°-
18 050 || 46-0 |45-0 | 1-0 || 2-1 |0-4 | 18 10-0 Id. ; rain!?.
19 072 | 45-1 |44.0 | 1-1 ||0-8 |0-7 | 18 10-0 Id.
20 113 | 43-8 | 42-4 | 1-4 ||0-7 | 0-7 | 19 || 20:—:— 6-5 || Send.
21 161 || 42-2 | 40-6 | 1-6 || 1-3 |0-5 | 19 || 20:—:— 1-5 || Loose scud ; cirro-stratous scud.
22 179 | 42-4 |40-8 |1-6 || 1-1 | 0-7 | 20 || 21:18:—|| 6-5 || Scud: cirro-strati; woolly cirri.
23 210 || 42-9 | 41.1 | 1-8 |) 1-5 | 1-2 | 18 ||) 21:—:19]| 2-5 || Scud: woolly cirri; loose, ragged cumuli to SE.
11 O 243 ||44-0 |}415 | 2-5 |/0-8 |0-5 | 18 |} 21:—:—J]| 1-5 || Seud; loose cumuli; cirri; cirro-strati.
1 274 ||44-2 | 41-3 | 2-9 || 1-3 |0-9 | 19 1-0 Id. ; Id.
2 277 || 44-0 | 41-0 | 3-0 || 1-7 |1-0 | 18 1-0 || Cumuli to SE.; cir. and cir.-str. to SW. and E. (
3 300 |/43-0 | 40-0 | 3-0 || 1.2 | 0-4 | 20 | 21:—:18]| 7-0 || Scud: mottled and woolly cir.; rad. from S by W.
4 325 || 42-2 | 39-7 | 2-5 || 0-4 | 0-4 | 18 | 21:—:18|| 7-5 || Scud: woolly cirri; cirro-strati.
5 351 || 40-8 | 38-7 | 2-1 || 0-7 |0-6 | 16 | 20:—:—|| 8-0 | Scud and loose cumuli; dappled grey cir., cirrous hs
6 374 || 38-4 |37-1 |1-3 || 0-7 |0-3 | 16 5:0 Ids to S. woolly cirri.
7 383 || 37-9 | 36-5 | 1-4 ||0-5 |0-2 | 18 1-0 || Seud cirrous haze; lunar corona.
8 391 || 37-0 | 35-3 | 1-7 ||0-2 |0-1 | 19 0-5 || Cirri and haze on horizon ; lunar corona.
9 396 || 36-9 | 35-3 | 1-6 || 0-4 | 0-3 | 18 0:5 Tid-5 id.
10 391 | 36-2 | 34-9 | 1-3 || 0-3 |0-3 | 18 0-5 || Id.; id. to E.
11 401 || 36-3 | 34-9 | 1-4 ||0-4 |0-2 | 24 0-8 || Cirri and cirro-strati to NE.
12 408 || 34-7 | 33-7 | 1-0 ||0-1 | 0-0 | 25 0-8
12 0 || 29-590 || 40-3 | 39-1 | 1-2 |/0-5 |0-4 | 18 || 20: —: 20 Sunday. Scud and cirri.
12 13 || 29-581 || 27-2 |...... --» 110-4 10-0 | 20 2-0 ?|| Rather dense fog.
14 567 || 26-6 | 27-3 | --- || 0-0 | 0-0 7-02 Id.
15 551 || 27-6 | 27-8 | «++ || 0-0 | 0-0 10-0 Id.
16 535 || 28-0 | 28-0 | --- ||0-0 |0-0 | 18 10-0 Id.
17 520 || 27-4 | 27-7 | --- || 0-0 | 0-0 6 10-0 Id.
18 500 || 28-5 | 28-3 |0-2 || 0-0 |0-0 | 18 10-0 IGE clearing off at 18" 30™.
19 492 || 28-0 | 27-8 |0-2 ||0-0 |0-0 | 16 10-0 || Stratus in the hollows 2
20 475 || 28-0 | 27-8 | 0-2 ||0-0 | 0-0 | 17 || 10:—:—J|| 10-0 || Seud.
21 456 || 32-3 | 32-0 |0-3 |/0-1 |0-1 | 7 || 5:—:—|| 10-0 | Id.; a few drops of rain at 20 50™.
22 436 || 36-6 | 36-0 |0-6 || 0-1 | 0-1 9 7:—:—j| 10:0 || Ta; Scotch mist.
2a 413 || 37-7 |37-0 | 0-7 || 0-2 |0-2 | 10 9:—:—|| 10-0 Id. ; fog to N.
13 0 386 || 37-3 | 36-9 | 0-4 ||0-2 |0-2 | 10 || 10:—:—]! 10-0 Id. ; id.
1 364 || 39-3 | 38-0 | 1-3 || 0-4 | 0-4 | 11 || 12:—:—J]} 10-0 Id.
2 338 || 39-8 | 38-2 | 1-6 || 0-6 | 0-3 9 || 12: —:—j]| 10-0 |) Id.
3 321 || 40-7 | 38-7 | 2-0 || 0-4 | 0-3 8 || 12:—:—¥]| 10-0 Ide; clouds breaking to S.
4 299 || 40-7 | 38-5 | 2-2 || 0-4 | 0-3 7 |11:—:— 8-0 lise woolly cirri.
5 291 || 40-0 | 38-9 | 1-1 ||0-5 | 0-3 7 ;12:—:—]} 9-9 || Id.
6 287 | 40-0 | 38-4 | 1-6 ||0-3 |0-5 | 11 10-0 || Thick scud; drops of rain.
7 280 || 39-0 | 37-7 | 1-3 || 0-6 |0-3 | 11 10-0 Tdi; id.
8 278 || 39-0 | 38-0 |1-0 0-4 |0-1 |] 8 10-0 || Thick seud or cirro-strati; rain”?
9 284 || 40-1 | 39-3 |0-8 || 0-1 | 0-1 | 12 10-0 Id. ; id,
10 290 || 41-3 | 40-0 | 1-3 ||0-5 | 0-4 | 12 10-0 Id.
11 290 || 40-9 | 39-6 | 1-3 || 0-4 |0-2 | 12 9-8 Id.
12 306 || 39-5 | 38-3 |1-2 ||0-3 |0-3 | 13 5:0 || Scud.
13 || 29-325 || 36-9 | 35-9 | 1-0 ||0-5 |0-1 | 12 1-0 || Clouds to E.
14 325 || 36-6 | 36-1 |0-5 || 0-3 | 0-1 4 5:0 || Scud.
15 340 || 39-2 | 37-8 | 1-4 || 0-1 | 0-1 8 10-0 Id
16 353 || 40-3 | 39-4 |0-9 || 0-4 |0-5 | 10 10-0 IES rain?”
7 369 | 41-3 | 39-8 | 1 0-8 |0-4 | 13 10-0 Id
18 399 || 41-4 | 39-8 | 1-6 ||0-7 |0-6 | 12 10-0 Id
19 428 ||41-1 |39-6 |1-5 || 0-7 |0-5 | 12 10-0 Id
20 460 || 40-7 | 39-4 |1-3 ||0-7 | 0-3 | 12 9-5 Id.
21 507 || 40-8 | 39-6 | 1-2 || 0-4 |0-3 | 13 || 13:—:—J| 10-0 Id.
22 546 || 41-0 | 39-6 | 1-4 | 0-5 10-2 | 13 ||} 13:—:—|| 10-0 Id.
ri
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, S.=16, W.=24. Th
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
xGtt.
Viean
‘ime.
bo
hw
OMIM pAwnwor Ow
{
758
749
Hovurty METEOROLOGICAL OBSERVATIONS, JANUARY 1L3—16, 1845. 141
THERMOMETERS.
Dry. | Wet. | Diff.
wo
[e.e)
or
wo
J
bo
Sr GOdOMNDOAONWARODORNMNWOWWA HEROUMHRAOKROSHDOH?
eo
=}
i=}
bo
ie ok ees
I
ooo
Oru w
28-1 | 28-0 | ---
26-2 | 26-0 | 0-2
eesoooesosso sseosessssseeo
soosooscescs¢
oo OF eR eK bO
WIND.
From
Clouds,
Se. : C.-s. :Ci.,
12 :—:—
12:—:—
—:22:—
Species of Clouds and Meteorological Kemarks.
— : 262: —
Cirro-stratous scud.
Seud.
Id. ; cirro-strati.
IGS id.
Id. ; id.
Cirro-stratous scud.
Id.
Scud or cirro-strati to E., patches to W.
Seud.
Scud; cirro-stratous scud. }
IG@l,g id.
Cirro-stratous scud ; cirro-cumulous scud.
Clouds much denser.
As before.
Id.
Id.
Clouds broken ; stars dim.
Broken cirro-stratous scud.
Seud ; broken cirro-stratous scud.
Cirro-strati ; cirro-stratous scud round horizon.
Bank of dense cirro-strati round horizon.
Seud: cirro-cumuli; cirro-strati.
Tides id. ; id.
Id. ; Idi; id.
Id. ; finely mottled cir. to W., lying NW. and WSW.
Id.
Id.
Watery cirro-cumuli; irregular lunar corona.
licks id.
Thin cirri ; sky milky ; lunar corona and halo.
As before; sky very milky.
Band of cirri to S., very thin haze.
Cirri and cirrous haze.
6 O08
vy yyy
Cirri and cirrous haze.
Cir.-cum. to W., streaks of cir. and cir. haze to N. }-
Hazy on horizon.
Id.
Hazy, stars dim.
Cirrous haze over the sky.
Dense cirrous mass ?
Id.
Id.
Id.; fog, objects invisible at 4 mile.
Id. ; dense fog, objects invisible at 1 mile.
Id.
Td.
Id. 4 mile
Id. id.
Cirro-cumulous seud ; cirri; fog clearing off.
Stratus ; cirro-strati; cirri.
Id. ; id. ; id. ; lunar corona.
VY
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H. = 8, S.=16, W.= 24. The
’
MAG. AND MET. oss. 1845.
‘7 of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
573
29-562
THERMOMETERS. WIND.
Maximum
Dry. | Wet. | Diff.|| force in
SONOnNOODUUANOS On:
FPOBNTN NWO OWWeRE WOO
QS
on
=
aI
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Loose misty scud; fog gone off; faint halo.
Id.
Seud.
Id.; thin haze.
Cirro-cumulous scud.
Thick seud.
Thick seud.
Seud ; cirro-strati.
Id. ;
Teds
ds
ides
ds
itd:
Loose cir.-cum. ; cir.-str.; cirrous haze; clouds red,
Ids; id. ; id.
Id. ; id. ; id.
Id. ; nis be id.
Watery cirri; masses of cirro-strati; cirrous haze.
Patches of scud ; cir.-str.; loose cir.-cum. ; woolly cir.
Nearly as before.
Id.
Id.
Seud ; cirro-strati.
Id. ; id.
Idi: id.
Id. ; id.
Cirro-cumulous scud.
Watery cir.-cum. ; cirri; cirrous haze ; lunar corona.
Idk: id.
Watery cirro-cumuli, denser.
As at last hour; sky to E.
Id.
Cirro-strati; thin cirri.
id.
id., or cirrous haze.
; cirro-strati.
dense homogeneous cirro-strati; rain’?
cirro-strati breaking up.
id.
cirro-strati ; cirri.
loose ragged cumuli; cirro-cumulous seud.
cumuli to E.; cirro-strati; cirri.
Scud ; cirro-strati; cirri.
des Td. + drops of rain.
|| Watery cirro-cumuli; sky milky ; lunar corona.
Id.
Id.
Cirro-stratous scud ; cirri.
Cirri; cirrous haze; faint lunar corona and halo. 7
| Cirrous haze over the sky ; lunar halo.
Id. ; halo disappeared.
) { Sunday—variable. a.m. Cirro-cumulo-strati. ; cirri, €
snow. P.M. Dense, cirrous mass; snow and sleet. _
The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, H.= 8, S.=16, W.= 24.
motions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Jan. 174 122,
Observation made at 12h 12m,
_—
Ma ia cons oNMé
a
et
we ww
19
20
29-784
765
778
rigs
778
774
789
803
THERMOMETERS.
Dry.
29-5
|| 28-9
27-5
27-3
25-7
25-8
26-0
28-7
26-9
Wet.
42.7
42-8
Diff.
BSB OO RM RBH eee
SOG PW HNO ON
Cw WRNWADS
WIND.
Maximum
force in |Hyom
14,, 10m
lbs lbs. pt.
1-1 | 0-1 | 30
0:0 |0-1 | 24
0-0 | 0-1 | 20
0-1 | 0-0 | 20
0-0 | 0-1 | 17
0-1 | 0-0 | 16
0-0 |0-0 | 24
0-1 /0-0 | 24
0-1 | 0-0 | 16
0-1 |0-0 | 18
0-2 |0-0 | 18
0-1 |0-0 | 23
0-3 | 0-2 | 20
0:5 | 0-4 | 23
0-5 |0-5 | 26
3-2 | 0-4 | 29
0-4 |0-1 | 26
0-2 /0-1 | 22
0-2 |0-1 | 23
0-2 | 0-2 | 26
0-4 | 0-2 | 26
0-9 | 0-9 | 27
0-9 | 0-7 | 28
0-8 | 0-4 | 29
0-5 .|0-3 | 28
0-3 | 0-4 |24v
0-1 | 0-1 | 28
0-2 |0-1 | 29
0-1 |0-1 | 18
0-0 | 0-0 | 18
0-1 | 0-1 | 20
0-1 | 0-1 | 20
0-1 |0-0 | 20
0-1 | 0-2 | 20
0-2.|0-1 | 25
0-1 | 0-1 | 21
0-1 |0-0 | 20
0-2 0-1 | 22
0-2 | 0-1 | 20
0-3 |0-1 | 18
0-3 |0-3 | 17
0-2 |0-0 | 16
0-6 |0-3 | 18
0-5 |0-3 | 18
0:5 | 0-2 | 18
0-7 |0-7 | 18
0-6 | 0-8 | 18
2-0 | 1-4 | 19
1-0 | 0-5 | 18
1-2 |0-9 | 19
1-1 | 0-4 | 20
0-6 | 0-1.| 20
0-2 |0-0 | 14
0-5 | 0-4 | 20
0-8 | 0-2 | 20
0-2 |0-0 | 22
Clouds,
Se. : C.-s. : Ci.,
moving
from
pt. pt. pt.
|
Be
|
20 : 22: —
20 :—:—
HourLy METEOROLOGICAL OBSERVATIONS, JANUARY 19—21, 1845.
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Cirro-cumulo-strati ; cirro-strati.
elas Tol! & cirri.
I Be Ke KP id.
Id. ; ids; id.
Id.; id.
liclhs id.
Cirro-strati near horizon.*
Woolly cirri ; cir.-strati; cir. haze; loose cum. to SE.
Woolly cir. and cir.-str.; scud on the flank of Cheviot.
Woolly cirri; cirro-strati.*
Loose woolly cirri, as before.
Haze on horizon.
Cirro-strati to NE.
Loose cirro-strati, 2 30™ Rainbow.
EGE loose nimbi and shower to N.
Loose cumuli and cirro-strati.
Cirro-strati and thick cirrous haze on horizon.
Id. on N. horizon.
Seud : cirro-strati.
Cirro-strati on SE. horizon.
Td. SE. and N. horizon.
Id. to E.
Watery, loose cirro-cumuli; lunar corona.”
Cirro-cumulo-strati.
Cirro-cumulo-strati; sky in zenith.
lich. cirri ; faint lunar corona.*
Id. ; id.
Id. ; denser.
Id. ; id.
Id.
Seud : clouds broken.
Id.; cirro-cumulo-strati; cirro-strati.
Loose cirro-cumuli ; cirro-strati.
Fleecy, woolly cirri; cirro-cumuli; cirro-strati.
Cirro-cumulo-strati ; cirro-strati; cirri.
As before.
Cirro-stratous scud ; wavy cirro-strati ; cirri.
Io [2 id.
Id.; id.
Scud : cirro-stratous scud ; red tinged cirri to W.
Misty scud : thin cirro-strati and cirri.
Chiefly smoky seud.
23 cirro-strati; lunar corona.
Dense, nearly homogeneous mass of seud.
Nearly as before, but varying.
Nearly homogeneous.
Id.
Loose scud: cir.-cum.; cir.-str.; coloured lunar cor.
Glee cir.-str. ; thin haze, causing a col. cor.
Homogeneous; drops of rain.
Id. ; id.
Thick scud and cirro-strati.
Id.
Smoky scud ; cirri.
Id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.=8,S.=16, W.=24. The
aotion of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Jan. 204 3h 40m,
ee Heavy showers of snow and sleet with strong wind.
_* See additional Meteorological Notes after the Hourly Meteorological Observations.
ee
BEB ASIN RASA ON ONO N OR ORES)
po St
}
y|
144
Gott. BaRo-
Mean METER
Time at 32°
de hs in.
21 21 || 29-821
22 825
23 834
22 0 846
1 846
2 823
3 815
4 824
5) 795
6 786
7 788
8 780
9 791
10 790
11 781
12 767
13 || 29-737
14 701
15 660
16 593
V7 556
18 529
19 498
20 478
21 460
22 439
20 418
Zon 10 404
1 387
2 360
3} 318
4 297
5 286
6 274
i 279
8 260
9 251
10 233
1] 224
12 210
13 || 29-195
14 168
15 160
16 154
ibZf 146
18 142
19 147
20 186
21 242
22 290
28) 340
24 0 380
il 414
2 439
3 477
4 516
The direction of the wind is indicated by the number of the point of the compass, reckoning N. — 0, E. = 8, 8S. = 16, W. = 24.
motions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Jan. 224 3h,
HourLy METEOROLOGICAL OBSERVATIONS, JANUARY 21—24, 1845.
THERMOMETERS. WIND.
Maximum
Dry. | Wet. | Die.|| force in From
1h, 10™.
2 2 & Ibs. | Ibs. pt.
43-1 |}42-3 |0-8 ||0-1 |0-2 | 24
42-3 |41-8 |0-5 ||0-3 |0-1 | 20
41-4 |41-1 |0-3 ||0-2 |0-1 | 22
45-3 | 43-7 | 1-6 || 0-2 |0-1 | 20 ||
46-0 | 43-8 | 2-2 ||0-4 |0-2 | 19
46-4 | 44.3 | 2-1 |10-8 |1-0 | 19 |
45-9 | 43.7 | 2-2 ||0-6 |0-6 | 19
44-6 |42-2 |2.4 11-1 |0-5 | 19
41-7 |40-2 | 1-5 0-8 | 1-1 | 18
41-0 |39-9 | 1-1 || 1-6 |0-9 | 19
41-8 |40-5 | 1-3 || 1-2 |0-6 | 17
42-6 |41-3 | 1-3 || 0-8 |0-1 | 20
43-1 |41-7 | 1-4 10-9 |0-8 | 18
43-0 |41-7 | 1-3 || 1-6 |0-6 | 18
42.2 |41-2 |1-0 ||/0-8 |0-2 | 18
42-8 | 41-6 [1-2 |0-5 |0-2 | 15
41-4 |40-2 | 1-2 ||0-9 | 1-6 | 17
39-5 | 38-7 |0-8 |10-5 | 0-1
42-1 |40-8 | 1-3 || 0-0 | 0-0
44-7 |43-6 | 1-1 ||0-7 | 0-6 | 17
46-1 | 45-1 | 1-0 || 1-5 | 1-1 | 20
46-3 |45.9 | 0-4 || 1-6 | 1-1 | 18
48-6 | 48.0 | 0-6 || 1-2 |0-7 | 20
48-8 |47-8 | 1-0 ||2-9 |2.6 | 18
49-2 |47.9 | 1-3 12.3 |1-4 | 19
49-7 |47.5 | 2-2 || 2.9 |2.3 | 20
00-0 | 47.1 |2.9 ||4-1 |5-0 | 19 ||
51-1 | 46.9 | 4-2 |16-3 |4.2 | 18
50-0 | 46-6 | 3-4 || 6-3 | 3-4 | 19
50-0 | 46-7 | 3-3 || 4.3 | 4.2 | 18
49-8 146.8 | 3-0 || 4-6 |3-7 | 18
49-3 | 46.4 |2-9 || 4.5 15-2 | 18
48-9 |46.4 |2-5 15.2 13-5 | 19
47-8 | 45-8 | 2-0 13-6 | 2-8 | 18
48-1 |46-0 | 2-1 || 2-7 |9.7 | 20
47-6 | 45-8 |1-8 || 3-2 |2.5 | 17
46-5 |45.8-0-7 || 2-2 |0.8 | 18
46:0 | 44.7 | 1-3 |} 1-3 |1-3 | 18
45-7 | 44-3 | 1-4 10-8 |0-4 | 18
45-5 |44.0 | 1-5 ||0-5 10-5 | 18
45:3 | 44-0 | 1-3 || 0-2 |0-2 | 17
44.8 |43-7 | 1-1 | 0-3 |0-0 | 17
44-1 |43-3 |0-8 ||0-0 |0-0 | 17
44-1 | 43-7 |0-4 |10-1 |0-0 | 15
43-8 | 43-4 |0-4 ||0-0 |0-0 | 14
43-7 | 43-3 |0-4 || 0-0 |0.0 0
44.0 |43-2 |0-8 ||0-0 |0-1 | 21
43-3 | 42-4 | 0-9 |/0-1 |0.1 | 24
38:7 | 38-0 | 0-7 || 1-8 |1-5 | 30
37-4 | 36-2 | 1-2 11-5 |0-6 | 31
37-7 | 36-7 | 1-0 || 0-9 |0-7 | 28
39-0 | 37-8 | 1-2 ||0-9 |0-9 | 28
41-0 | 39-2 | 1-8 ||}1-1 | 1-7 | 28
42-3 | 40-0 | 2-3 11-3 |} 1-3 | 28
42-9 | 40-0 | 2-9 |} 1-0 |0-7 | 29
43-2 |39-7 |3-5 11-2 |0-7 | 28
PAT
PANS
20:
2073
18:
Bil:
Eel:
Clouds,
\Se.: C.-s. :Ci.,
: 24
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Smoky seud ; cirrous mass.
Tae: wo. cir, lying from NE. to SW.; ha
Woolly, mottled, and linear cirri; solar halo.
Smoky scud, various cirri radiating from SW.
ihe cirro-strati ; cirri.
Id. ; 1d. id. ; cirrous haze; halo,
Seud ; woolly cirrri lying SW. to NE. ; cirro-strati,
Td; id. lying S by E. to N by W. id.
lds; id.
Seud ; cirri. :
Cir.-str. ; cir. and cir. haze; faint lunar halo and cor,
Scud; cirri; cirrous haze ; halo and corona.
Thick scud.
Id.
Id.
Scud ; cirro-strati; cirri.
Scud.; mass of cirri; lunar halo.
Thin, watery cirri.
Thick scud ; cirro-strati.
igs rain?,
des rain??,
Td. rain”,
Id. ; rain”? ; wind in gusts.
Id.
Id.
Scud ; cirro-strati.
Id. ; id. ; cirri.
ike iGlhs id.
Id.
Id. ; rain to E. ?
Id.
Id.; rain to SE.
Thick seud.
Scud ; cirro-strati ; cirri; drops of rain.
IGee id.
IG: id. ; rain??,
Id.; id. ; rain?®.
Tdes id. ; rain??,
Id.; watery cirrous haze; no halo visible.
Cirro-strati ; watery haze; faint halo.
Cirro-strati; gradually becoming denser; broken to$
Cirro-strati, or cirro-stratous scud,
As at 13"; particles of rain.
Td rain??,
Seud ; cirro-strati.
Id. ; id. ; drops of rain.
Ile id. ; rainl,
Id. ; Ids rain’,
Ist, 3 ade rain®.
Id.; cirrous mass; rain”.
Td, ; id.
Scud on S. horizon ; dense cirrous mass.
Smoky scud round horizon ; cirro-strati.
Cirro-strati; cirri; snow on Cheviot.
Patches of scud; cirro-strati; woolly cirri.
Cumulo-strati ; cirro-strati; cirri.
The smoky scud seems to have a sort of internal motion.
663
654
629
609
575
539
512
494
435
416
386
362
345
301
269
250
202
156
109
29-050
28-983
933
944
28-918
29-026
306
29-302
287
240
175
120
062
29-006
28-970
944
920
888
880
868
857
838
830
825
821
821
823
Hovurty METEOROLOGICAL OBSERVATIONS, JANUARY 24—27, 1845. 145
THERMOMETERS.
Dry. | Wet. | Diff.
40-9 | 38-2
37-6 | 36-7
35-7 | 34.4
36-5 | 34-5
33-4 | 32-5
32-9 | 32-1
37-1 | 35-0
33-4 | 32.3
31:8
33-6
32-9
33:0
35:0
37-0
38-4
38:8
39-2
42-4
44-0
46-0
47-0
47-5
47-2
47-5
47-8
48-0
48-9
49-0
49-2
49-0
48-7
43-2
42-7
35-5
CSC os OMe rn
>-N CODE RHNWONOWDD
27-4
26-6
26-0
26-9
28-6
28-6
29-1
28-9
29-4
28-8
30-6
32-0
32-2
32-1
32-4
31-8
30-8
31-0
31-2
31-0
AADWHSH
WIND.
Maximum
force in |Prom
Clouds,
Se.: C.-s,: Ci.,
moving
from
pt. pt. pt.
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Cumulo-strati; cirro-strati; cirri; clouds tinged red.
Cirro-strati ; haze on E. horizon.
Moon risen very orange-coloured.
Streaks of cirri to N.
Cirri to E.
Cirri to SW.; scud on Cheviot.
Bands of cirri lying NW by N. to SW by S. ; patches of scud.
Bands of cirri: portion of a halo.
Cirri; cirro-strati.
Cirri and cir.-str. on hor. ; patches of scud to NW.
Sheets of thin cirro-strati and cirri.
Cir.-cum. ; sheets of cir.-str. ; cir. haze; lunar halo and corona,
Seud ; cirro-cumuli; cirro-strati.
Thick scud and cirro-strati.
Scud ; watery cirrous haze and cirro-strati.
Cirro-cumulous scud; id. ; tinged red on SE.
Id.
Loose, watery scud ; cirro-stratous scud ; cirrous mass.
Id. ; id.
Id. ; cirro-strati; cirro-cumuli; wild sky.
Id. ; id. ; id.
Id.
Id. ; id. ; id.
16S id. ; id.
Id. ; id.
Loose scud; dense homogeneous cirro-strati.
Occasional rain "—! since 62.
Rain 05
Hele
Id.
Rain 15
Misty scud ; cirro-strati; cirri
Rain 2
Patches of seud; woolly cirri; cirro-strati slowly.
Cloudy throughout the day, occasional © and flakes of snow, P.M.
wPyvy vyyuYyYTY
Very thin cirri; lunar halo and corona.
Auroral cirri ; id. ; id.
Td.; id.
Cirrous mass, gradually growing denser.
Id., less dense ; cirro-strati below.
Homogeneous mass of cirri.
Id., snow! ; snow began at 18 30™.
Id., snow 7°; 14 inch deep.
Snow? ; 23
Flakes of snow ; 3
Snow?
Flakes of snow.
Cirrous mass; mean depth of snow 2°9 inches.
Cirro-strati ; cirrous mass.
Seud ; dense cirro-strati.
Cirrous scud ; cirro-strati; woolly cirri.
Scud, cirro-strati, cirri; clouds tinged red.
Homogeneous mass; breaks to SW. and W.
Snow 1, (since 6" 15™.)
Snow |, fine particles.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H. = 8,8. = 16, W. = 24. The
}Motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Sky purplish on HE. horizon; at 64, dark red on SW. horizon, and slightly orange above.
See Notes on the Aurore Boreales.
qj) Jan, 244 5h,
Jan. 244 114 and 135, and 264 134,
MAG, AND MET, obs. 1845.
146 Hovurty METEOROLOGICAL OBSERVATIONS, JANUARY 27—29, 1845.
BaRo-
METER
ato oee
Jan, 274 1]4—234,
THERMOMETERS.
Wet.
17-2
WIND,
Maximum
force in [yom
pt.
30
31
pow Oe
DD A bo bo
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Snow’; fine particles.
Id.
Snow!
Id.
Clouds not so homogeneous.
Homogeneous.
Id.
Scud; cirro-strati; clouds broken.
Tass id’ 5 id.
Id.; id.
Thin seud; cirro-strati ?
Cirrous seud ; cirro-strati; cirri; stratus to E ?
Tas Id. ids: id.
Scud ; snow!; stratus to E.
Cirro-strati to W.; cirrous mass; solar halo.
Scud; cirrous mass; solar halo.
Id.; snow®; snow 63 inches deep.
Id.; dense cirro-strati and haze.
Id. ; id.
Dense cirrous mass ; snow’ since 34,
Id. ; snow’
Scud ; dense cirro-strati; slate-blue to NW. and
| Cirro-strati; haze; stars dim.
‘Kae id. ; id.
As before ; faint aurora.
Id.
Seud ; cirro-strati on horizon ; faint aurora.
lids; id. ; id.
Bank of cirro-strati to S.; haze.
| Cirro-strati ; cirri; lunar corona.
Td. ; id.; lunar halo.
IC RE id. ; id.
Id. ; ad. 5 id.
IGE id. ; id.
| Send; thin haze; faint lunar halo.
Id.; cirri; cirro-strati; lunar corona.
Gite sheatous scud ; diffuse cirri; loose eum. ou ies
Woolly cirri; masses of scud on horizon.
Scud; woolly cirri and cirrous haze.
Woolly cir. a haze; cum. in hazeto NE. ; solar halo.
solar halo.
id.
id.
id.
Cirri ; atmospheric haze.
Cirro-strati; cirri; dense cirri to E.
Cirro-strati and haze round horizon. 7
faint auroral ligh’
id.
Cirri; faint aurora ?
Id.2 snow®® for a little.
Cirri ?
Id.
Id. denser.
Anemometer vane frozen up.
Jan. 284 8b, The vane of the anemometer being frozen up it was released : ;
Jan, 284 20%, here is scareely any moisture deposited on the stems, &c. of the external thermometers, a very unusual cir cuiataa 1
so low a temperature.
Jan. 294 8b 30™,
Dry thermometer reading 7°°7.
the wind commenced blowing about 7» 40™,
Hourty METEOROLOGICAL OBSERVATIONS, JANUARY 29—31, 1845. 147
THERMOMETERS. WIND.
Clouds,
ee | n0- To Se.:Cs.:Ci.,|| Sk
‘ean || METER eT oom | (dled ah a Species of Clouds and Meteorological Remarks.
ime. | at 32°. |) Dry. | Wet. | Diff. force in [Fyom ae ;
1b, |10™,
h. in. eo S e lbs. | lbs. pt. pt. pt. pt. 0—10.
| 16 || 28-985 ||15-3 | 15-4 | --- 10-0 |0-0 | 18 8-0 || Thin cirri; stars dim; halo. }
17 976 || 17-4 | 17-2 |0-2 | 0-0 |0-0 | 21 || —:22:—j| 4-0 |) Cirro-cumulous scud; thin cirri; fine halo. }
18 980 | 15-8 | 16-0 | --- || 0-0 |0-0 | 20 2:0 || Thin cirri; faint halo. ))
19 981 || 18-4 | 18-0 | 0-4 || 0-0 |0-1 | 20 1-5 || Cirro-strati; cirri. }
20 || 28-979 || 22-0 | 21-3 | 0-7 || 0-2 |0.2 | 20 1-5 || Bank of cirro-strati on E. horizon ; cirri. »)
21 || 29-000 || 20-0 | 19-9 | 0-1 | 0-0 |0-0 | 26 || 20:—: 22 3-0. || Patches of seud: cirri; cirro-strati; cirrous haze.
p22 006 || 17-0 | 16-7 | 0-3 || 0-0 |0-0 | 20 || —:—:22|| 4-0 Id. ; id. ra)
23 013 || 18-8 | 18-3 |0-5 || 0-1 |0-0 | 18 3-0 || Cirro-strati; cirri all round horizon. ()
ie O 021 || 21-3 | 20-9 | 0-4 || 0-0 |0-0 | 18 5-0 lols id. oO
1 023 || 23-6 | 22-7 |0-9 | 0-0 |00 | 20 || —:—:20]} 3-5 || Woolly cir. and loose woolly cir.-str.; faint solar halo. 6
2 011 || 24-0 | 23-2 |0-8 || 0-1 |0-0 | 20 3-0 Id. ; id. oO
3 014 || 25-9 | 24.3 | 1-6 | 0-1 |0-0 | 18 || —:—:20]) 5-0 | lich 3 id. (0)
4 033 || 23-6 | 22-6 |1-0 0-1 /0-0 | 17 || —:—:20] 8-0 || Woolly cirri and cirro-strati. (5)
5) 046 || 21-0 | 20-6 | 0-4 ||0-0 | 0-0 —:—:20 9-0 Id.
6 072 || 17-1 | 17-1 | -:- || 0-0 |0-0 8-0 Id.
7 080 || 12-4 | 12-8 | .-. || 0-0 |0.0 4-0 Id.
8 093 || 9-8 | 10-0 | -.- || 0-0 | 0-0 0-5 || Haze on horizon.
9 110 || 8-4] 8-6] +. |] « |0-0 0-5 || Haze to N.; faint aurora?
10 126 | 6-4 | 6-6 | --- || --- |0-1 | 20 0-0 || Haze on horizon; faint aurora.
11 136 5-4 | 5-2] --- | ==» 10-0 0-2 Id.
| 12 W539 W4-3 | 4:5}. | = 10-0 | 18 0-2 Id.
13 || 29-173 || 4:0 |} 4-0] --- |] --- |0-0 | 18 0-2 || Haze on horizon.
14 195 2-3 | 2-8 | «« || --- 10-0 | 18 0-0 Id.
} 15 206 | 0-5 | 1-1 | --- || «+ 10-0 0.2 Id. ; cirro-strati to SE.
16 BOsle2-0 | 2:0 ie i] = | 0-0.) 18 0-1 tds; id. »)
a.7 253 || 1-3] 1-5 | -- || -- |0-0 | 18 0-0 || Clear. »)
} 18 278 ||-1-1 |-0-4 | ... |] --- |0-0 | 16 0-1 || Cirro-strati to SE.; haze to E. y
M19} 309 |-0-2|... | --- || --- [0-1 | 18 0:4 || Cirro-strati to E. »)
20 333 1-7 | 1-9 | ... || --- |0-1 | 16 0-8 Id. ; and cirri to E. and 8. »)
} 21 365 || 1:0 | 1-2] ... || --- |0-0 | 20 1-0 ide cirri; haze.
22 ADO NM BA Halos ||| soo HOLO 0 1-0 Id.; id.; id.; cumuli. oO
23 498 || 6-4] 64]... |] --- |0-0 0-8 || Cumuli; cumulo-strati; haze on horizon. ©
0 451 || 10-0 | 9-8 |0.2 || --- |O-1 ee 0-5 Id. ; id. (a)
me 472 1114-7 | 14-3 |0.4 | --- |0-1 | 19 0-5 | Id; id. ©
2 475 || 22-8 | 21-0 | 1-8 || --- |0-0 0-5 || Cumulo-strati to E.; cirri to S. ©
3 493 || 24-4 | 21-8 |2-6 || --- |0-0 | 28 0-1 Id. (0)
4 500 || 23-2 | 20-7 | 2-5 || --- |0-0 0-1 2)|| Cirri; cirrous haze. ©
5 515 || 15-4 | 14-8 | 0-6 || --- |0-1 | 18 0-8 || Cirri; cirro-strati, and cirrous haze.
6 529 || 10-4 | 10-2 | 0-2 || --- |0-0 | 20 0:7 || Cirro-strati to N.; cirrous haze on horizon.
7 546 || 8-6 | 8-5 |0-1 || --- |0-0 | 20 || —-: 2:—]| 0-4 || Cirro-strati; cirrous haze.
8 553 || 8-3 | 8-2 ]|0-1 || --- |0-:0 | O 1-0 || Cirro-strati to N.
9 562 || 13-3 | 12-7 | 0-6 0-0 | 12 9-0 || Cirro-strati moved up from northwards; sky to N.
/ 10 576 || 16-7 | 15-8 | 0-9 || --- |0-1 | 18 7-0 || Cirro-strati; cirri and haze.
11 578 || 26-7 | 25-0 | 1-7 || --- |0-2 | 28 3-0 || Cirro-strati to E. and N.
| 12) 587 || 27-8 | 26-3 | 1-5 || --- |0-8 | 28 4-0 Id.
. 13 || 29-597 || 28-3 | 26-9 | 1-4 0-8 | 28 1-5 |Cirro-strati to E. and N.
; 14 596 || 29-0 | 27-3 | 1-7 0-8 | 28 1-5 Id. to E.; thin cirrous clouds to N.
15 608 |] 29-2 | 28-0 | 1-2 0-5 | 31 1-0 Id.
16 613 || 29-2 | 27-2 | 2-0 0-8 | 30 0-5 Id.
a7 628 || 30-0 | 28-4 | 1-6 |) --- |0-8 | 28 0:5 de; to SE. }
| 18 648 || 28-7 | --- | ees |] «- 10-5 | 28 1-5 || Cirro-cumulo-strati to SE. y
| 19 655 || 28-4 | --- | «-- |] «- 10-5 | 29 1-0 || Cirro-strati to E. y
| a 668 || 30-5 | 28-1 | 2-4 || --- |0-8 | 29 || 0:—:—]| 1-5 || Seud and cirro-strati to E. and SE. »)
21 700 || 28-8 | 26-7 | 2-1 || --- |0-7 | 30 |} —: 2:— 2-0 || Cir.-str. scud ; cirro-strati ; cirri; cumulo-strati to NE.
| 22 712 || 30-6 | 28-3 | 2.3 || --- |0-5 | 29 ||: 2:—|| 9.0 || Cir.-cum. seud; woolly cirri; cumulo-strati to NE.
23 722 || 32-6 | 30-1 | 2-5 || --» {0-2 | 29 || —:—: 1]| 7-0 || Woolly cirri; cirro-strati and cumulo-strati to E. ©
j| The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, HB. = 8,S.= 16, W.= 24. The
j/motion of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
j}, Jan. 292 17h, The anemometer has been partially frozen, its indications are therefore not trustworthy : the pressure of the wind has not
})5een more than 0:2 1b. during the night.
148
Gott. BARo-
Mean METER
Time. at 32°,
ad h. in.
1 0 || 29-737
1 743
2 749
3 751
4 768
5) 781
6 798
a 805
8 821
9 832
10 838
11 845
12 844
233| 29-801
2 13 || 29-660
14 656
15 654
16 651
17 652
18 659
19 673
20 681
21 710
22 720
23 741
3 0 760
1 791
2 793
3 809
4 852
5 874
6 893
7 901
8 914
9 952
10 956
11 967
12 984
13 || 30-004
14 || 29-995
15 || 30-006
16 || 30-010
17 || 29-992
18 989
19 975
20 974
21 978
22 978
23 975
4 0 969
1 928
2 904
3 896
4 871
5 867
HovurLy METEOROLOGICAL OBSERVATIONS, FEBRUARY 1—4, 1845.
Dry. | Wet.
40-3
31-2
32-2
32:5
34-0
32-4
31-2
30-2
27.2
27.9
23-7
23-8
20-2
32-4
37-5
36:8
37-0
36-3
37:8
37-1
36-0
35-0
34:8
35-1
36:3
37-9
40-2
40-7
40-7
39-3
38-2
37-1
37-0
35:8
34-6
34-0
33-2
31-3
29-8
30-0
29.2
31-3
28-0
26-8
28-0
28-0
27-5
30-1
33-0
35:3
37-6
38-5
39-2
38-6
37-9
THERMOMETERS.
Diff.
=e DONS Se
: .
WIND.
Maximum
force in |pPyom
14, |10™
lbs. | Ibs. pt.
«+» 10-0 14
0-0 | 20
0-2 | 28
sae | 0-2) 31
0-2 | 28
eee |O-1 | 29
0-1 5
ae ORO | 7
0-1 | 22
0-0 | 18
0-0 | 18
0-1 | 22
0-1 | 22
0-2 | 22
Sco 03) (20
0-1 | 18
0-2 | 17
ee NOLO Wks
0-1 | 18
0-0 | 17
0-2 | 19
0-1 | 19
Sore |e! 18
0-1 | 17
0-1
0-1 | 26
0-1 | 23
0-1 | 28
oe Oem 30
0-2 | 0.2 2
0-2 |0-2 3
0-2 | 0-0 0
0-6 |0-5 2,
0-8 | 0-6 2
1-1 |0-1 3
0:7 | 0-4 1
0:9 |0-2 | 31
0-1 | 0-1 | 21
0-1 |0-0 | 19
0-1 |0-0 | 31
0-1 |0-1 | 18
0-1 |0-1 | 22
0-1 |0-1 | 26
0-1 |0-0 | 19
0-1 |0-1 | 19
0-2 |0-1 | 20
0-2 |0-1 | 19
0-1 |0-1 | 21
0-4 |0-4 | 18
0-6 |0-2 | 18
0-9 |1-0 | 20
1-0 |0-9 | 19
2-0 | 1-6 | 20
1-7 |1-7 | 21
1-3 |1-7 | 20
Clouds,
Se.:
C.-s.: Ci,
moving
pt.
|
roan |
24:
from
ace |
|
Sky
clouded.
Species of Clouds and Meteorological Remarks.
As before.
Woolly cir. ; cir. haze; cir.-str.; faint solar halo €
Woolly, curled, and mottled cirri; cirro-strati.
Seud ; cirro-cumuli; cirro-strati; cirri.
Scud; cirro-cumuli in bands, lying N. and S.; slight snow since 3%,
Cir.-str. scud ; cir.-cum. as before; cum.-str. to E. —
IGEe cirri radiating from S by W. and N by E
Id. ; cirri round horizon.
dis id.
Id. ; id.
id? cirri to E. and S.
Cirri to SE.
fd:
Sunday—overcast ; cirrous mass; cirro-strati. .M..
\ shower of snow.
Dense mass of cirro-strati; drops of rain.
Scud and cirro-strati; sky to N.; drops of rain.
Id.
Ile stars dim.
Id.
Id. on horizon ; stars bright.
Cirro-strati; cirri on E. and S. horizon.
Strati; scud on Cheviot ; cirro-strati to S.
Strati; scud on Cheviot; cirro-strati to E.; clouds tinged red. =
Cirro-strati on S, and E. horizon; mist in valleys. @
As before.
Cirro-stratous scud ; slight fog in valleys. C
fds: bank of cirro-strati to E. ; stratus. ¢
Id. ; atmospheric haze. ¢
Bank of cirro-strati; cumulo-strati to E.
Seud ; cirro-strati; cirri; drops of rain.
Id.; cirro-stratous scud; cirro-strati.
Seud.
Id.
Id.
Seud and cirro-strati on horizon.
Id. on E. horizon.
Id. id.
Id. id.
Seud and cirro-strati on E. horizon.
Id. id.
Id. round horizon.
Id. on E. horizon.
Clear.
Id.
Cirro-strati on horizon.
Cirro-strati and patches of cirri over the sky.
Linear and woolly cirri.
Patches of cirro-strati and cirri.
cirro-cumuli; cirro-strati and cirri.
Masses of cirro-strati on horizon.
Cirro-strati; cirro-cumuli; woolly cirri.
Id. ; id.
Cirro-cumulo-strati ; cirro-strati. 1
Cir.-cum.-str. ; cir.-str.; loose cum. to SE. and patches of seud to N, | |
el |
Scud; cirro-cumuli and dense cirro-strati to NE.; thin woolly cirri. if
O000r
Oo
seen’
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, KE. = 8,8. = 16, W. = 24. bo ii
>
motions of the three strata of clouds, Sc. (seud), C
Feb. 24 204.
Feb. 34 20h,
.-8. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
The sky on SSE. horizon is yellowish, becoming slightly orange to SH. ; to B. it is orange, becoming reddish ; to ENE., red;
to NE., purple: patches of growing scud on K. horizon, lying in a horizontal line, and at about equal intervals. it
Masses of stratus in the hollows of Cheviot, afterwards rising above the hill.
oa
HovurLy METEOROLOGICAL OBSERVATIONS, FEBRUARY 4—6, 1845. 149
THERMOMETERS. WIND.
Clouds,
= fees ee ena Al fee Species of Clouds and Meteorological Remarks.
me. || at 32°. || Dry. | Wet. | Diff. a nes From pa
i? in. ° iY 2 bs. | Ibs. | pt. || pt. pt. pt. |] O—10,
6 || 29-853 || 39-7 | 37-4 | 2-3 111-6 |0-6 | 23 | 94:—:— 9.9 Scud; cirro-cumuli and dense cirro-strati to NE. ; thin woolly cirri.
ic 849 || 42-0 | 39-2 | 2.8 || 3-2 | 2-0 | 20 9-9 Id.
8 843 || 42-0 | 39-4 |2-6 || 2-1 |0-6 | 20 | 10-0 Id.; dark
9|| 839 || 42.2 | 39-6 | 2.6 || 0-4 |0-3 | 20 10-0 Ibe ils
10 830 || 41-2 | 39-2 |2.0 || 0-5 | 0-2 | 20 | 10-0 Id. ; clouds broken.
11 811 || 42-7 | 40-2 |2.5 |, 0-8 |0-8 | 20 10-0 Id.; cirri above.
12 793 ||42-8 | 40-4 | 2-4 || 1-4 |0-4 | 20 10-0 Id. ; id.
13 || 29-770 || 41-9 | 39-4 | 2-5 || 0-4 |0-4 | 20 9-8 || Scud; clearing to W.
14 768 || 41-4 | 38-4 |3-0 || 1-0 |1-0 | 24 0-8 || Cirro-stratous scud ?
15 766 ||39-4 | 36-7 | 2.7 ||0-7 | 0-4 | 24 3:0 || Cirro-strati 2
16 739 |\38-7 | 36-2 | 2-5 ||0-8 |0-6 | 23 3-0 Id; cirri; stars dim.
17 734 | 38-7 | 35-8 | 2.9 | 0-8 | 0-6 | 26 0-5 Id. 2
18 723 || 38-6 | 35-8 | 2-8 || 1-3 | 1-2 | 27 0-2 || Cirri on S. horizon 2
19 734 ||37-8 | 35-0 | 2-8 || 1-7 | 1-3 | 28 0-5 || Cirro-strati; cirri on S. horizon.
90 719 137-3 | 34-5 | 2-8 || 1-5 | 1-6 | 25 0-2 || Patches of scud and cirri on E. and S. horizon.
21 719 137-3 | 34-0 |3-3 || 1-5 |1-3 | 26 0:6 || Cirro-strati on horizon; mass of loose cumuli to SE. ©
92 716 || 38-3 | 35-0 | 3-3 || 1-9 | 1-8 | 28 0-5 || Bank of cirro-strati on E. hor. ; loose cumuli toS. ©
23 712 1139-7 | 36-2 |3-5 || 2-2 |1-7 | 28 0-8 || Scud and cirro-strati on horizon ; id. (0)
0 705 ||41-2 |36-6 14-6 || 1-8 |1-6 | 28 0-2 || Cirro-strati and cirri on EK. horizon ; loose cumuli. ©
671 ||41-8 | 38-0 | 3-8 || 2-0 |1-6 | 25 | 28:—:—|| 0-8 || Scud; cirri; loose cumuli. (0)
2 642 || 42.1 | 38-0 | 4-1 || 2-1 |2-3 | 26 || 27:—:—J) 7-0 || Seud and loose cumuli; cirri. r=)
3 596 || 42-6 | 38-5 | 4-1 || 2-6 |1-8 | 25 || 26:—:—]| 7-0 || Loose, ragged cum.; drops of rain; cirro-strati to E. ©
4 572 ||42.9 | 38-6 | 4-3 ||3-38 |3-6 | 25 | 296:—:—j]| 4-0 Id. ©
5 551 1149.3 | 38-3 | 4-0 ||6-5 |3-0 | 29 || 96:—:— 9-0 Scud; dense black mass to NE., falling in rain or snow. 5h 15™, rain?
6 583 || 38-0 | 36-4 | 1-6 || 4-2 |1-8 | 29 || 29:—-:—| 10-0 || Id.; cirrous mass; cumulo-strati to E.; rain!
7 597 ||35-7 | 34-1 11-6 ||3-6 | 2-3 | 30 4-0 Id.; cirro-stratous scud; 6 10™, sleet and hail?
8 623 1136-3 | 33-9 | 2-4 || 2-2 | 1-0 | 30 3:0 || Id.; id ; auroral light.
9 641 || 35-0 | 32-9 | 2-1 || 1-0 | 0-8 | 29 1:0 || Cirro-strati to SE. and to NNW. among aurora.
10 649 || 34-1 | 32-4 | 1-7 || 1-4 |0-4 | 29 3-0 Td. to W. and N.; auroral bank.
11 654 || 34.0 | 32-0 | 2-0 ||0-8 | 0-7 | 28 3-0 || Scud and cirro-strati; faint auroral light.
12 657 ||33-5 | 30-7 | 2-8 ||0-9 | 0-9 | 29 2-0 || Cirrous clouds ; id.
13 || 29-667 || 33-6 | 30-2 | 3-4 || 2-3 | 1-6 | 29 0:0 || Clear; faint aurora.
14 665 | 32-5 | 29-5 | 3-0 | 2-1 | 1-3 | 30 0-1 Id.; small patches of cloud to N.
15 661 || 32-1 | 28-6 | 3-5 || 3-9 | 2-2 | 31 0-1 Id.; cirro-strati on N. horizon.
16 656 ||31-7 | 28-7 | 3-0 |/4-1 | 3-5 | 30 0-0 Id.
17 668 || 31-0 | 27-7 | 3-3 || 3-4 | 2.4 | 30 0-0 || Very clear.
18 680 || 30-4 | 27-4 | 3-0 |] 2-8 | 2-1 | 30 0-0 Id.
19 696 || 30-7 | 27-7 | 3-0 || 4-2 | 3-0 | 30 0-5 || Cirro-stratous scud on E. horizon.
20 719 || 29.4 | 27-4 | 2-0 || 2-4 | 2.4 | 30 0-5 Id.*
21 723 ||29-4 |27-5 |1-9 || 2-3 | 2-0 | 30 0-5 Id. ; tinged red.
22 738 ||30-6 | 28-1 | 2-5 | 3-0 | 4-7 | 29 0-8 || Scud and cirro-strati on E. horizon. ©
23 768 || 32-5 | 29-5 |3-0 5-8 | 4-3 | 30 |} —:31:—J|| 1-5 || Cirro-stratous scud. ro)
en!) 792 ||\33-2 | 29-4 | 3-8 ||4-5 | 3-3 | 30 0:—:— 9-5 || Scud and loose cumuli; flakes of snow.
1 808 || 32-7 | 29-0 |3-7 ||3-8 |3-8 | 30 | 0:—:—|_ 6-0 Id.
2 831 || 33-8 | 29-8 |4-0 || 4-4 | 2-6 | 31 0:—:—|| 8-0 Td.
3 834 || 31-9 | 28-8 | 3-1 || 3-9 | 3-4 | 31 2-0 Id. round horizon. O}
4 859 ||31-2 | 27-3 | 3-9 ||4-8 | 2.2 | 31 2-5 Id. ; cirro-strati on horizon. (0)
5 868 || 29-8 | 26-6 | 3-2 | 2-5 | 0-7 0 1-0 Id. ; id. on K. horizon. ©
6 868 || 28-7 | 25-6 | 3-1 | 1-7 | 1-4 | 30 1:5 || Loose cumuli; cirro-strati to SW., tinged with red.
7 870 || 28-3 | 25-0 |3-3 || 1-8 |1-4 | 0 0-7 || Scud and loose cumuli.
8 878 || 27-4 | 24-9 |2-5 || 1-6 |0-6 | 30 0-2 || Clouds on horizon.
9 876 || 27-3 | 24-8 | 2-5 11-5 | 1-3 | 31 1-0 || Seud.
10 873 || 27-1 | 24-7 | 2-4 || 1-9 | 0-9 | 30 0-5 || Id.
11 896 || 27-0 | 24-3 |2-7 || 1-7 |0-6 | 31 1-0 | Id. on E. horizon.
12 888 || 26-2 | 23-8 | 2-4 || 2-0 |0-6 | 30 0:5 || Id. id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N.=0, HK.=8,8.=16,W.=24. The
otion of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Feb. 542, The snow has nearly all disappeared; there are still a few patches in the valleys. Several mole-hills thrown up near the
Feb. 545" 20m, Barometer 29-570 in. (rain and sleet)# [Observatory.
* See additional Meteorological Notes after the Hourly Meteorological Observations.
MAG. AND MET. oBs. 1845. 2P
Time. at 32
Gan: in,
6 13 || 29-891
14 885
15 870
16 851
7 845
18 851
19 843
20 860
21 883
22 874
23 877
7 881
1 870
2; 864
3 865
4 860
5 863
6 874
7 885
8 888
9 891
10 891
11 890
12 894
13 | 29-892
14 894
15 894
16 891
7 893
18 893
19 897
20 898
21 898
22 908
23 904
8 0 907
1 899
2 896
3 875
4 874
5 867
6 868
7 869
8 862
9 855
10 855
11 843
12 835
9 03] 29-634
13 || 29-457
14 452
15 450
16 438
17 431
18 421
Hovurty METEOROLOGICAL OBSERVATIONS, FEBRUARY 6—9, 1845.
THERMOMETERS.
Dry.
26-7
26-4
27-7
27-4
27-5
27-4
27-3
34:3
34-4
Wet.
24-6
24:8
25-9
Diff.
°
OHoOHyd|AAT.A HSH
wb NO Re Be ee Re ee &
32-5
32-4
32-6
32-7
33:3
33-4
WIND.
Maximum
force in |From
14, (.10™,
Ibs. lbs. pt.
1-0 | 0-9 | 30
1-2 |0-6 | 30
0-6 | 0-5 | 30
0-8 |0-7 | 30
1:0 | 1-0 | 30
0-7 |0-5 | 30
1-1 |0-9 | 30
0-9 |0-6 | 31
0-8 | 0-4 | 29
0-7 |0-6 | 29
0-7 |0-5 1
0-8 | 0-8 0
1-3 | 0-7 2
0-6 | 0.2 1
0-6 | 0-4 0
0-4 | 0-2 0
0-3 | 0-1 1
0-2 |}0-2 } 31
0-2 |0-1 | 31
0-2 |0-1 | 26
0-2 | 0-1 | 29
0-2 | 0-2 | 28
0-1 | 0-1 | 28
0-0 | 0-0 | 17
0-0 | 0-0 | 20
0-0 | 0-0
0-0 |0-0 | 20
0-0 | 0-0 | 20
0-0 | 0-0 | 20
+++ |0-1 | 20
0-1
0-1 | 24
0-0 | 22
0-0 | 24
0-0 | 22
0-1 | 26
0-1 17
0-1 liv,
0-1 16
0-1 19
0-0 | 19
0-1 Wi
Onda U7.
0-1 | 17
0-1 18
0-1 18
0-1 18
Ont | 17
0-6 | 0-2 | 16
0:5 | 0-0
0-2 | 0-1 18
0-1 |0-0 | 18
0-1 | 0-0
0-1 | 0-1 20
0-1 | 0-0 | 22
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, KE. = 8,8. = 16, W.= 24.
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
4h, New silk put on wet bulb.
* See additional Meteorological Notes after the Hourly Meteorological Observations.
Feb. 84 54.
Clouds,
Se.: C.-s.: Ci.,
moving
from
pt. pt. pt.
wm vo oo |
|
18 :—:—
fees ge
—:27:—
—:28:—
Cirro-cumulo-strati radiating from NNW. and SSE.
Sky
clouded.
| Sunday. Overcast; snow from 8" 23! till 94 5".
Species of Clouds and Meteorological Remarks. —
Id.; flakes of snow.
Id.; snow!
Seud and cirro-strati.
Id. ; a few flakes of snow.
Cirro-stratous scud, falling in snow’.
Scud ; flakes of snow; fine linear cir. ; faint solar halo. |
Loose cumuli; thin cirri and haze.
IRS id.
Scud and loose cumuli; woolly cirri.
Cirro-stratous scud ; loose eum. ; particles of fine snot
Id. s cirro-strati; cirri; flakes of sno}
Seud ; cirro-strati; nimbi to NE.; flakes of snow.
Id.; id.
Id.
Id.; dark; flakes of snow.
dee id.
Id. ; id.
Id.? cirro-strati?
Id. ? id.
Nearly as before.
Cirzo-strati; cirri; stars dim.
ds; id.; milky aurora over the sky.
Cirrous clouds ; chequered to S.
Cirro-strati; cirrous haze; stars seen dimly.
Nels id. ; id.
Nai: 1d. id.
ida cirrous mass.
Dense homogeneous cirrous mass; cum. on E. horizon
Id. ; faint halo.
ids: cumuli on horizon ; faint hal
Woolly cirri; cirrous mass ; faint halo.
Id.
Scud and loose cumuli; woolly cirri.
Id. ; id.
ifeh © id.; cirro-strati.
Cirro-cumulo-strati ; cirri; cirrous haze.
Loose cirro-cumuli; id. ; id.
Id. ; ides id.*
Cirrous mass? dark.
lids; id.
dS id.
Overcast with dense clouds.
Id.
Dense cirrous mass ; snow!
Id.
Tides snow".
Hourty METEOROLOGICAL OBSERVATIONS, FEBRUARY 9—12, 1845. 151
: THERMOMETERS. WIND. Clonds:
ie) AO Se,:C.-8.: Ci.) Sk
2an METER Maximum . a , y ,
om at 32°. Dry. | Wet. | Diff. force in |Ryom ee clouded. Species of Clouds and Meteorological Remarks.
rom
14, | 107.
h. in. ° ° ° Ibs. | Ibs. | pt. || pt. pt. pt. || O—10.
19 || 29-414 || 34-0 | 33-3 | 0-7 | 0-0 |0-0 | 20 10-0 || Dense cirrous mass.
20 412 || 34-7 | 33-6 | 1-1 || 0-3 |0-1 | 20 10-0. || Scud and cirro-strati.
21 414 || 35-0 | 34-0 }1-0 || 0-1 |0-1 | 19 || —:24:—]] 10-0 |) Cirrous clouds ; cirro-stratous scud.
22 411 || 36-0 |34-7 |1-3 ||0-0 |0-0 | 18 ||/-—:22:—j]] 9-9 || Cirro-stratous scud ; cirro-strati.
23 407 ||37-9 | 36-0 |1-9 || 0-2 | 0-0 | 20 || —:24:—]| 9-9 Id. ; id.
| 0 401 | 37-9 | 36-0 | 1-9 ||0-1 |0-0 | 24 | 20: 20:—|| 10-0 | Thin misty scud ; cirro-strati.
1 392 1139-6 |37-5 |2-1 0-0 |0-0 | 22 || 20:—:— 9-7 || Loose scud; cirro-strati; cirro-cumuli.
2 379 || 39-0 |37-6 | 1-4 ||0-0 |0-0 | 28 | 20:—:—J]] 10-0 || Scud; cirro-strati; cirrous clouds.
ino 377 || 39-4 | 37-7 | 1-7 ||0-1 | 0-0 2 /19:—:—] 10-0 Td. ; id.
4 375 ||38-6 | 37-2 | 1-4 ||0-0 |0-0 | 16 10-0 Id. ; id.; thin fog or haze to E.
5 373 || 37-5 | 36-4 |1-1 0-0 |0-0 | 6 | 19:—:22|| 9-9 || Id.; woolly cirri and cirro-strati; thin fog.
6 389 || 35-2 | 34-4 |0-8 ||0-:0 |0-0 | 14 | 18:—:—]] 9-9 Id.; cirro-strati.
74 402 || 34-0 | 32-7 | 1-3 ||0-2 |0-1 | 16 9-0 lds id.; stars dim.
8 419 | 33-0 | 31-8 | 1-2 0-1 |0-2 | 16 9-9 Td 7; id.
9 428 | 31-8 |32-2 | --- 10-4 |0-2 | 18 9-0 Td. ; id.; clouds broken.
10 453 || 31-3 | 30-0 | 1-3 ||0-2 |0-3 | 17 9-0 lok id.
11 485 || 31-2 | 29-8 | 1-4 | 0-4 | 0-4 | 16 9:0 Td. ; id.; cirrous haze; stars dim.
12 520 | 30-6 | 29-2 | 1-4 || 1-0 |0-4 | 16 10-0 Id. ; id. ? id. 2
13 || 29-548 || 30-4 | 28-8 | 1-6 0-5 |0-7 | 15 10-0 || Nearly as before; very dark.
14 581 || 29-9 | 28-5 | 1-4 0-5 |0-3 | 15 10-0 Id. ; id.
15 610 || 29-7 | 28-2 | 1-5 || 1-2 |0-7 | 15 10-0 Id.
16 630 || 30-0 | 27-9 |2-1 | 0-7 |0-6 | 15 10-0 Td.
17 651 || 29-7 | 27-3 |2-4 11-5 |0-8 | 15 10-0 Id.
18 687 || 29-8 | 27-8 |2-0 || 1-1 | 1-2 | 15 10-0 Td.
19 709 || 29-8 | 27-4 |2-4 || 1-6 |1-5 | 16 10-0 Id.
/ 20 751 || 29-8 | 27-7 | 2-1 ||1-3 |0-8 | 16 10-0 || Dense cirrous mass.
21 779 || 30-0 | 27-8 |2-2 || 1-6 |1-4 | 16 10-0 Td.
22 807 || 30-6 | 28-2 |2-4 || 1-8 |1-8 | 16 | —:28:—|] 10-0 || Cirro-stratous scud ; cirro-strati ; cum. on E. and S. hor.
23 832 131-2 |28-3 |2-9 || 1-8 | 1-8 | 16 10-0 lice id. ; flakes of snow.
m0 840 | 31-0 | 29-4 | 1-6 | 1-2 |0-6 | 16 10-0 Id. ; snow”.
a 861 || 32-2 | 30-2 |2-0 || 0-7 |0-2 | 15 || 18:—:—J] 10-0 || Scud; cirro-strati.
2, 880 || 32-9 | 30-3 | 2-6 ||0-4 | 0-1 | 22 10-0. || Id.; cum. on E. hor. ; cirro-strati; cirrous mass.
3] 892 || 32-0 | 30-2 | 1:8 |}0-3 |0-1 | 23 10-0 || Loose seud to E. ; id. ; id.
4 911 || 32-3 |30-3 | 2-0 ||0-1 | 0-1 | 22 10-0 |] Dense cirrous mass.
5 939 || 32-2 | 30-0 | 2.2 ||0-1 | 0-1 | 20 || —:24:—J| 10-0 || Thick, wavy cirro-stratus.
6 959 || 31-6 | 29-9 | 1-7 || 0-2 | 0-0 | 20 10-0 Td.
74 971 || 31-4 | 29-4 | 2-0 ||/0-2 |0-1 | 18 10-0 || Dense mass.
8 974 |31-6 |30-0 | 1-6 |/0-3 | 0-3 | 19 10-0 Td.
9 || 29-985 || 31-7 | 30-2 | 1-5 || 0-3 |0-2 | 20 10-0 Id.
10 || 30-001 || 31-9 | 29-8 | 2-1 || 0-4 |0-3 | 19 10-0 Td.
11 013 31-9 | 29-7 | 2-2 ||/0-5 |0-2 | 22 10-0 de
12 020 || 31-8 | 29-7 | 2-1 |/0-5 |0-3 | 20 10-0 Td.
13 || 30-030 || 31-8 | 29-6 | 2-2 ||0-7 |0-3 | 20 10-0 || Dense mass.
14 040 || 31-4 | 29-4 }2-0 ||0-5 |0-1 | 23 10-0 Id.
15 045 || 30-7 | 28-6 |2-1 ||0-5 | 0-6 | 22 7-0 || Cirro-strati and cirrous haze 2
16 040 || 29-9 | 27-7 | 2-2 ||0-5 | 0-4 | 21 8-0 Id.
{17 047 || 30-1 | 27-9 | 2-2 |/0-5 |0-4 | 21 10-0 Id.
38 056 || 30-0 | 27-8 | 2-2 ||0-4 |0-2 | 19 10-0 Id.
19 062 || 29.4 | 27-2 | 2-2 0-3 |0.2 | 18 10-0 Id.
20 059 || 29.4 | 27-3 |2-1 || 0-2 |0-2 | 18 || —:20:—}] 10-0 Id., breaking ; fog at a distance; red to SE.
21 074 || 29-5 | 27-2 | 2.3 ||0-4 | 0-4 | 20 || —: 20: —}| 10-0 Id.; tinged red to H.; id.
22 077 || 29-4 | 27-2 | 2.2 10-5 10-2 | 20 7-0 Id.; woolly cirri; fog getting nearer. 0)
23 066 | 31-5 | 28:7 |2-8 ||0-2 |0-1 | 19 || —:20:—/| 10-0 || Cirro-strati; cirrous haze.
0 057 || 32-8 | 30-0 | 2-8 || 0-3 |0-3 | 19 | —:19:—J|| 10-0 || Undulated cirro-strati; atmosphere hazy.
| 043 | 33-4 | 30-0 | 3-4 || 0-4 | 0-2 | 22 | —:20:—| 10-0 Id. ; cirrous mass; atmosphere hazy.
2 030 || 33-1 | 30-0 | 3-1 1|0-8 |0-5 | 21 || —:20:—|} 10-0 Id. ; id. ; id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, S.= 16, W.= 24. The
Feb. 104 14»,
‘ight; the vane was released at 14h 15™,
jotions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
The vane of the anemometer frozen up with the opening towards SW.; the indications have been too small during the
Heb. 124 21h,
Hebe 1357/30
The sky is unusually clear beyond.
Clouds bluish to H.;
motions of the three strata of clouds, Sc. (scud), C.-s. eta and Ci. (cirrus), are indicated i ina iajilee manner.
the scud is lower than the top of Cheviot. 34
Large masses of loose cumuli and scud, which, when thin, produce an indistinct corona while passing over the moon
13¢ 184 5, Twilight beginning to break. Sky milky to altitude 30° from E.
152 HovurLy METEOROLOGICAL OBSERVATIONS, FEBRUARY 12—14, 1845.
‘hase THERMOMETERS, WIND. ise
Se es Maxi 8e.: C.-8: Ci, Sky '
aoe | uEnen acta ae pea ee moving élewiea Species of Clouds and Meteorological Remarks,
14, | 10™, Pat
iP ds: “bh. in. 2 S a Ibs. | lbs. | pt. pt. pt. pt. 0—10.
112 3) 30-028 || 32-4 | 30-8 | 1-6 || 0-8 |0-6 | 18 10-0 || Nearly homogeneous cirrous mass ; snow since 2",
4.| 30-004 ||31-9 | 30-0 |1-9 || 0-7 |0-5 | 18 10-0 | Undulated cirro-strati and cirrous mass.
5 | 29-988 || 32-0 | 30-2 | 1-8 || 0-73/0-6 | 19 10-0 || Nearly homogeneous cirrous mass,
6 | 976 |) 32-1 |30-4 |1-7 | 0-6 |0-3 | 20 10-0 |; Homogeneous clouds ; snow’.
i 972 ||31-3 | 30-4 |0-9 | 0-4 |0-2 | 19 10-0 Id. ; snow’.
8\| 946 || 32-4 | 31-6 |0-8 | 0-5 |0-8 | 18 10-0 || Snow? ; vivid flash of lightning at 88 10™,
9| 909 ||32-7 | 31-6 | 1-1 | 1-1 |0-6 | 18 10-0 Id.
10|| 879 || 33-7 | 32-5 | 1-2 | 3-7 |3-0 | 17 10-0 Id.
11 873 || 33-8 | 32-4 |1-4 || 2-9 |1-4 | 18 10-0 || Seud.
12 855 || 33-4 | 32-0 | 1-4 || 1-7 | 1-2 | 18 10-0 Id.; snowl.
13 || 29-828 || 33-7 |32-3 | 1-4 12-3 |2-3 | 17 10-0 || Seud; snow.
14 785 ||35-5 |33-0 | 2-5 || 2-2 |2-2 | 18 10-0 Id.
15 756 || 37-8 | 36-4 | 1-4 | 3-8 | 3-2 | 20 10-0 Id. ; rain?,
16 713 ||/38-8 |37-0 |1-8 ||4-6 |6-2 | 21 10-0 Id.
17 685 || 38-0 | 36-5 | 1-5 || 5-0 |3-8 | 20 10-0 Id. ; rain?
18 652 || 38-2 | 36-5 | 1-7 || 5-0 |3-6 | 20 10-0 Id. ; rain!
19 623 || 38-7 | 36-7 |2-0 || 4-0 |3-8 | 20 10-0 Id.
20 590 || 38-9 | 36-9 | 2-0 || 3-9 | 2-4 | 20 || 20:—:—|| 10-0 || Loose seud; dense cirro-strati.
21 567 || 39-9 | 37-8 |2-1 || 6-1 |3-4 | 19 || 19: 23:—)|| 10-0 || Thin, loose emi loose cirro-strati; cirro-strati.
22, 536 || 40-4 | 38-7 |1-7 | 4-6 |3-1 | 20 || 20:24:—] 10-0 Id. ; id.
23 506 || 40-7 | 39-4 | 1-3 | 3-3 |2-5 | 19 | 20:—:— |] 10-0 Gee id. ; drops of rain.
13 0 493 || 40-2 | 38-9 | 1-3 | 2-7 |1-7 | 18 || 20: —:—|| 10-0 Id. ; id. ; id.
1 458 || 42-4 |41-0 | 1-4 |] 2-2 |0-8 | 19 10-0 ids id.
2 426 || 44-0 | 42-1 | 1-9 | 1-8 | 1-7 | 18 || 20: 23 :— 9:0 Tals 1d: blue cir.-str. to E.
3 388 || 43-7 | 42-0 | 1-7 | 2-9 |1-9 | 20 | 21:23:—1]} 10-0 Ish id: drops of rain.
4 374 ||43-8 |42-7 | 1-1 || 1-8 |1-0 ] 18 10-0 || Seud, after thicker ; cirro-strati’ drizzle®?.
5 372 ||45-0 {43-2 | 1-8 || 1-6 |0-7 | 21 || 24:22:22] 6-5 Id. ; cirro-cumulous scud ; many varieties of cirri.
6 377 ||44-5 | 40-8 | 3-7 |} 3-3 |0-1 | 20 || 24:24:—]) 8.0 IGE id. ; cirri ; sky red.
7 377 || 43-7 | 40-3 | 3-4 |) 1-2 [3-5 | 25 ||25:—:—]]} 2-0 Id. : id.
8 407 ||42-7 | 40-0 | 2-7 || 3-1 | 1-5 | 23 9-5 tds: shower since last.
9 415 ||41-7 | 38-8 | 2-9 ||0-9 |0-6 | 20 9-0 || Seud and cirro-strati.
10 406 || 40-0 | 37-4 | 2-6 | 1-3 |0-8 | 20 4-0 || Cir.-cum. seud; loose cir.-str. ; bands of thin cirri.
11 395 || 39-4 | 36-4 |3-0 | 1-0 | 1-2 | 20 || 24:—:— 1-8 || Patches of seud; bands of cirri; bluish corona.
12 399 || 37-5 | 34-7 | 2-8 || 1-1 |0-6 | 20 0-0 || Faint lunar corona.
13 || 29-404 || 37-1 | 34-4 |2-7 ||0-6 |0-6 | 21 0-0 || Very clear; 125 5™, meteor from zenith to NW.
14 393 || 36-3 | 33-6 | 2-7 ||0-6 {0-5 | 20 0-2 || Seud to W.
15 402 || 36-3 | 34-1 |2-2 || 1-0 |0-5 | 21 0-0 || Clear; stars twinkling very hard.
16 414 || 34-8 | 32-8 |2-0 ||0-6 |0-1 | 20 0-5 || Cirro-strati to E.
17 407 || 35-2 | 32-8 | 2-4 | 0-5 |0-7 | 20 0-0 || Clear.
18 398 || 34-4 | 32-2 | 2.2 |0-8 |0-7 | 22 0-1 || Streak of cirro-stratus to E.; sky getting milky tol
19 399 || 34-4 | 32-2 | 2-2 | 1-0 |0-6 | 24 0-1 || Seud on Cheviot and on horizon.
20 402 || 34-8 | 32.2 | 2.6 | 0-5 |0-4 | 22 ||30:—:—j| 8-0 || Id.; cirro-strati; hoar-frost on the ground.
21] 415 ||35-5 | 33-0 |2-5 | 0-7 |0-7 | 26 ||—:28:—]| 9-8 |] Cirro-strati and loose hanging cir. clouds ; scud to 8!
22) 430 || 35-6 | 33-0 |2-6 | 0-7 |0-7 | 26 |—:30:—J| 9-0 || Loose cirro-cumuli; cirro-strati; scud on Cheviot
23) 456 || 37-7 | 34-4 |3-3 || 1-1 |0-4 | 26 || —:31:—|| 9-0 || As before. }
114 0O 481 || 37-3 | 35-0 |2-3 || 1-1 |0-5 | 30 || 28:—:30 9-0 || Scud; wo. cir. and cir. haze; cir.-str. ; cum. on E. ha
i 491 || 38-2 | 35-2 |3-0 | 0-6 |0-5 | 29 ||31:30:—|| 9-0 || Seud and loose cumuli; cirri; cirro-strati; haze.
2' 520 |/37-9 | 35-0 |2-9 | 0-7 |0-3 | 31 |131:—:—|| 10-0 Id. ; cir.-str. ; slight snow-shower.
3 535 || 37-1 | 34-5 | 2-6 | 0-4 |0-2 | 31 | 31 :—:— 9-5 id: s id. [N
4 | 549 38-3 135-2 3-1 10:2) 0-3 || 30 130: —=:— | 955 IGE id.; loose seud; cumuli
5|| 560 || 36-7 | 34-2 |2-5 | 0-5 0-2 | 28 | 30:—:—|| 9-8 tds; id.; loose cum. on E. ho
6 | 587 || 35-3 |32-9 | 2-4 0-1 |0-0 | 31 ||30:—:—]] 10-0 Id. ; ener shone around. :
7 | 612 || 33-5 | 32-5 |1-0 | 0-4 |0-1 | 30 | —:30:— || 4-0 | Watery cirro-cumuli; cirro-strati; fine lunar cor.
8) 633 || 32-5 | 31-5 | 1-0 || 0-2 |0-1 | 26 | —:30:— 2-0 de id.
9) 662 || 34-2 | 31-7 | 2-5 | 0-3 | 0-6 | 30 10-0 Id., much denser.
10 G83 33-8 a fl Lact 0-8 | 0-4 | 29 1-8 =
t. BarRo-
an METER
ae, at 32°,
h. in,
11 || 29-701
12 718
13 || 29-725
14 737
15 741
16 742
17 734
18 734
19 741
20 737
21 747
22 737
23 735
0 734
1 730
2 717
3 713
4 696
5 687
6 688
” 687
8 691
9 687
10 686
11 680
12 697
0 || 29-708
13 || 29-651
114] 650
15|| 645
16|| 636
17|| 635
18 638
\19|| 636
20 636
(21 646
| 22 655
| 23 662
1 0 668
pal 671
| 9] 668
‘@3 663
4 671
5 670
76 681
71 680
. gi 691
19 700
10|| 708
wt Cle
12) 726
| 13 || 29-736
14 739
15 746
16 743
Hovurty METEOROLOGICAL OBSERVATIONS, FEBRUARY 14—17, 1845.
THERMOMETERS.
Dry. | Wet. | Diff.
32-7
32-4
29-3
30-7
29-2
30-9
WIND.
29-5
29-1
28-6
28-0
27-3
37-8
39-2
39.8
40-7
39-7
39-3
38-7
38-0
37-4
37-4
35-9
34-5
33-7
31-8
29-2
30:5
29-3
30-8
RO G2 W RO OY LO wD OY O2 WO Bw Oy OY ID w
OwWOdMHHEWHAREE HE QYS
2-7
TON On OR
BREDORBARANANO AN
2-9
0-1
Maximum
force in |fyom
14,|10™.
Clouds,
Se. : C.-s. : Ci.,
moving
from
pt. pt.
pt.
30:
Sky
clouded.
153
Species of Clouds and Meteorological Remarks.
Seud; cirro-strati on horizon ; small lunar corona.
Id. ; id.
Cirro-cumulous scud, causing a lunar corona.
Clouds near horizon.
Cirro-cumulous scud ; cirro-strati.
Overcast.
Id.
Id.
Scud.
Cirro-cumulous scud; red to E.
dics cirro-strati.
Cirro-stratous scud ; id,
lige id.; sky greenish to N.
de: woolly cirro-cumuli ; cirro-strati.
Cirro-cumulous scud ; nds ; id.
lds ade. id.
Id. ; id. ; id.
Cirro-strati ; cirrous mass.
Cirro-stratous scud ; undulated cirro-strati.
Dense cirro-strati.
Id.
Id., breaking to N.
Id.
Id., becoming looser.
Id.
Id.
Sunday—Cloudy, with gleams of © ; cirro-stratous
\ scud; woolly cirro-cumuli. p.m. Wind WNW.?
Dense scud.
Id.
Id.
Id.
Id.
Id.
Id.
Id.
Id.; hazy.
Tay id. to N. rs)
Id.; cirro-strati; cirro-cumuli.
Scud and cirro-strati.
Cirro-stratous scud; cirro-strati; cumuli on NE. hor.
Id. ; id.
INCL F id.
Id. ; id.; very hazy. [blue.
Id. ; ide. id. ; clouds orange and
Id. ; hazy atmosphere.
Td. P|
Id. }
Watery cirro-cumuli. >|
Td. }
Id. ; hazy ; coloured lunar corona. }-
Id. ; id. ; id. }
Thin cirri; haze. »)
Id. ; id. ; lunar corona, y
Loose cirro-cumuli. }
Cirro-cumulous seud.
) The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E.=8, 8S. = 16, W.= 24. The
notion of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
MAG. AND MET. oss. 1845.
2a
154 HourLy METEOROLOGICAL OBSERVATIONS, FEBRUARY 17—20, 1845.
THERMOMETERS. WIND.
Gott BaRo-
Mean METER Maximum
Time. || at 32°. || Dry. | Wet. | Diff.) force in [Prom
1h, | 10™,
do ah. in. o 7 os Ibs. | lbs pt.
17 17 || 29-751 || 31-9 | 31-8 | 0-1 ||0-0.|0-0 | 22
18 754 || 32-7 | 32-3 |0-4 ||0-0 |0-0 | 22
19 763 || 34-4 | 33-6 |0-8 | 0-0 | 0-0 | 26
20 775 || 34-7 | 33-7 |1-0 ||0-0 |0-0 | 24
21 779 || 32-8 | 32-2 |0-6 || 0-1 |0-2 | 19
22 795 || 36-2 | 34-8 | 1-4 ||0-2 |0-0 | 24
23 806 || 36-9 | 35-2 | 1-7 || 0-2 |0-2 | 22
18 0 820 || 37-8 | 36-0 | 1-8 ||0-2 | 0-2 | 24
1 813 || 40-8 | 38-4 | 2-4 ||0-1 |0-0 | 24
2 813 || 40-7 | 37-8 | 2-9 || 0-0 |0-2 | 28
3 812 ||41-5 | 37-8 |3-7 || 0-1 |0-0 | 26
4 812 || 43-9 |40-0 | 3-9 | 0-1 |0-1 | 22
5 812 || 40-6 | 37-2 |3-4 | 0-1 |0-0 | 23
6 817 || 38-3 | 35-8 | 2-5 ||0-2 |0-1 | 25
Th 825 || 33-8 | 32-7 | 1-1 || 0-3 |0-0 | 16
8 844 || 29-0 | 28-6 | 0-4 || 0-0 | 0-0
9 857 | 27-6 | 27-9 0-0 |0-0 | 20
10 863 || 26-2 | 26-9 0-0 |0-0 | 16
11 882 || 29-7 | 29-6 | --- ||0-0 10-0 | 20
12 878 || 29-9 | 29-5 | 0-4 ||0-0 |0-0 | 20
13 || 29-882 || 28-0 | 28-0 0-2 |0-1 | 20
14 887 || 25-8 | 26-0 0-2 |0-0 | 17
15 893 || 24-6 | 25-0 0-0 | 0-0
16 891 || 25-8 | 25-8 0:0 |0-0 | 16
17 898 || 26-0 | 26-0 0-1 |0-0 | 20
18 907 || 25-2 | 25-1 '0-0 | 0-0
19 910 || 24-9 | 24-7 | 0-2 || 0-0 | 0-0 | 22
20 910 || 24-8 | 24-6 | 0-2 | 0-0 | 0-0 | 24
21 926 || 25-6 | 25-3 | 0-3 || 0-1 | 0-1 | 20
22 923 || 28-0 | 27-6 | 0-4 || 0-2 | 0-1 | 24
23 927 || 29-3 | 28-9 | 0-4 ||0-1 | 0-1 | 25
19 O 927 || 31-6 | 30-8 |0-8 || 0-0 | 0-0 | 26
1 918 || 33-5 | 32-1 | 1-4 | 0-2 | 0-0
2 907 || 36-3 | 35-0 | 1-3 || 0-2 |0-0 | 12
3 891 || 37-2 | 35-4 | 1-8 || 0-0 | 0-0 6
4 884 || 37-7 | 36-0 | 1-7 0-0 0-0
5 885 | 36-6 | 35-0 | 1-6 || 0-2 | 0-2 | 16
6 888 || 33-2 | 32-3 |0-9 || 0-2 |0-2 | 16
7 892 | 35-0 | 33-5.| 1-5 ||0-2 |0-1 | 21
8 885 || 35-0 | 33-5 | 1-5 || 0-2 |0-1 | 24
9 888 || 34-9 | 33.4 | 1-5 || 0-2 |0-2 | 18
10 889 || 34-3 | 33-3 | 1-0 || 0-2 |0-2 | 18
1i 887 || 34-6 | 33-3 | 1-3 || 0-1 |0-0
12 886 | 34:8 |33-5 | 1-3 ||0-0 | 0-0 | 20
13 || 29-882 | 34:5 | 33-2 | 1-3 || 0-0 |0-0 | 18
14 868 || 34-0 | 33-0 | 1-0 ||0-0 |0-0 | 18
15 860 || 34-0 | 32-6 | 1-4 || 0-4 |0-1 | 20
16 851 || 33-9 | 32-6 | 1-3 || 0-3 |0-1 | 18 |
V7 838 || 33-9 | 32.6 | 1-3 || 0-2 |0-1 | 16
18 820 || 32-2 |31-9 |0-3 || 0-5 | 0-2 | 17
19 818 || 32-0 | 32-0 | .-- || 0-7 | 0-1 | 18
20 821 | 33-0 | 32-0 | 1-0 | 0-3 |0-3°| 18
nll 824 | 34-0 | 32-3 | 1-7 | 0-1 |0-3 | 20
22 818 || 35-7 | 34-0 | 1-7 || 0-3 |0-3 | 17
23 801 || 36-4 134-1 | 2-3 ||0-5.10-9 | 21
120 0 799 || 39-4 | 36-2 | 3-2 ||0-7 ‘1-0 | 18
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, 8S. = 16, W.= 24. the
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Feb. 194 5». There has been a very dense haze in the atmosphere throughout the day ; objects being invisible at a distance of thre
miles.
Clouds,
Se. :C.-s.: Ci.,
moving
from
24:30): —
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Loose cirro-cumulous secud ; cirri; atmosphere hazy,
Id. ; bank to S.; id. to]
Cirro-stratous scud ; cirrous mass; hazy. ‘
ide; 1das id.
Cirro-strati ; cirrous mass; hazy.
Cirro-stratous scud ; cirro-strati; haze on horizon.
Loose cumuli; cirro-stratous scud; streaks of cirri x
Td; id. ; id.
Td <i; id. ; haze
Td id. ; id.
Ges id. ; streaks of cirri,
Streaks of cirri; haze on horizon.
as: id.
Tas; id.
Thin cirri over the sky; haze.
Large cirro-cumuli.
Id.
Clouds and haze on E. horizon.
Id.
Id.
Haze on horizon ; very thick to E.
Very hazy round horizon ; a patch of cloud to E.
Haze brown to E., bluish to W ; loose cirri to S
Loose misty scud; general haze.
Hazy ; very thick on horizon; no clouds visible. —
As before. i
Id.
Id.
Cirro-strati and cirri in haze near horizon.
Cirro-cumulous scud ; very hazy.
Loose cirro-strati ; id.
Cirro-strati ; id.
Cirro-cumulous scud ; id.
Tde; id.
Id.; id.
Id.
| Seud 2 id.
Id.
Seud ?
Id., cirrous clouds above.
Id. :
Id.
Homogeneous. 5
Cirrous clouds and haze.
Cir.-cum.-str. ; cir.-str.; hazy to E.; fiery red to §
Lele id. ; id.
IRE ade id.
d's id. ; id.
ies Toles id. 0) |
Cirro-cum. scud ; loose cirro-str. ; cirri; cir. haze. O}
|
155
tt. Bano-
an METER
ne. || at 32°.
h. in.
1 || 29-783
“4 768
3 761
4 754
5 754
6 748
7 746
8 741
9 733
10 723
11 719
12 710
13 || 29-703
14 692
15 684
16 662
ilfd 660
18 642
19 624
20 621
21 625
99 622
93 615
0] 600
1 581
oD 563
3 544
4 525
45 508
6 502
7 498
8 492
9 475
10 452
11 438
12 415
13 | 29-401
14 391
15 364
16 329
17 313
18 298
19 288
20 279
21 276
22 272
23\| 269
a) 270
a 268
2 255
3 253
4 250
5 252
6 251
7 262
8 262
WIND.
THERMOMETERS.
Maximum
Dry. | Wet. | Dift.|| force 12 [Prom
14, | 10".
9 e = lbs. | lbs, pt.
41-3 | 37-0 |4-3 ||0-9 | 1-0 | 18
44.5 | 40-0 | 4-5 | 1-3 | 1-4 | 18
43-3 | 39-7 | 3-6 | 1:0 |0-5 | 18
42-8 |39-7 | 3-1 | 0-9 |0-9 | 18
41-5 | 38-7 | 2-8 || 0-7 |0-3-| 18
40-7 |38-3 | 2-4 ||0-3 |0-1 | 16
40-2 | 38-0 | 2-2 0-1 |0-0 | 18
37-8 |36-0 | 1-8 ||0-7 |0-4 | 21
37-1 | 35-7 | 1-4 ||0-4 |0-1 | 20
37-2 |35-7 | 1-5 |'0-4 |0-4 | 20
36-0 | 34-9 | 1-1 ||0-4 |0-2 | 20
36-0 | 35-0 | 1-0 ||0-:3 | 0-3 | 18
37-3 | 36-1 | 1-2 ||0-4 |0-3 | 20
37-8 | 36-4 | 1-4 ||0-5 |0-3 | 16
37-0 | 35-8 | 1-2 ||0-2 |0-1 | 18
37-0 | 36-0 | 1-0 || 0-3 | 0-3 | 20
37-3 | 36-0 | 1-3 || 0-4 | 0-2 | 20
35-8 | 34-8 | 1-0 || 0-2 |0-2 | 18
35-4 | 34-4 | 1-0 ||0-5 | 0-5 | 20
34.4 | 33-7 |0-7 || 0-5 |0-2 | 20
36-1 |35-0 |1-1 || 0-4 |0-3 | 20
37-6 | 36-2 | 1-4 0-5 |0-1 | 20
39-3 | 37-4 | 1-9 || 0-4 |0-4 | 21
40-6 | 38-6 |2-0 ||0-5 | 0-4 | 18
41-1 | 39-2 |1-9 ||0-5 | 0-3 | 20
40-2 | 39-0 | 1-2 ||0-6 |0-4 | 18
39-7 | 38-6 | 1-1 ||0-4 |0-3 | 19
41-5 | 39-7 | 1-8 || 0-4 |0-1 | 19
41-8 | 39-3 | 2-5 ||/0-4 |0-1 | 20
40-2 | 38-0 | 2-2 ||0-4 | 0-1 | 20
38-4 | 36-8 | 1-6 |/0-2 |0.2 | 19
33-0 | 32:3 |0-7 || 0-2 | 0-1 | 20
30-9 | 30-4 |0-5 || 0-1 | 0-0
32-3 | 31-9 | 0-4 || 0-4 |0-0 | 18
31-0 | 30-6 | 0-4 || 0-0 |0-0 | 28
98-0 |28-0 | --- ||0-1 /0-0 | 28
27-0 | 27-4 0:0 | 0-0 | 22
28-7 | 28-7 0-0 | 0-0
27-8 | 28-2 0-1 | 0-0
27-7 | 28:3 0-1 | 0-0
30-0 | 30-0 0-0 |0-0 | 15
30-0 | 30-0 0-0 | 0-0 8
28-9 | 29-0 0-0 | 0-0 6
27-7 | 28-0 0-0 | 0-0
98-9 | 29-0 | --- ||0-:0 10-0 | 16
32-6 | 31-8 |0-8 || 0-1 |0-0 | 10
33-5 | 30-0 |3-5 || 0-5 |0-3 | 17
34:0 | 30-0 | 4-0 | 0-6 |0-5 | 14
32-7 | 29-2 | 3-5 ||0-5 |0-4 | 10
37-2 | 32-5 | 4-7 |'0-4 |0-3 | 14
37-0 | 32-8 | 4.2 0-3 |0-4 | 12
36-7 | 32-6 | 4-1 ||0-5 |0.2 | 11
35-0 | 31-3 | 3-7 || 0-4 | 0-2 | 10
33°7 | 30-7 | 3-0 || 0-2 |0-2 | 12
33-0 | 30-2 | 2-8 | 0-2 |0-2 | 14
32-4 |30-4 | 2-0 | 0-4 |0-1 | 16
Clouds,
Sc. :C.-s. : Ci.,
moving
from
pt.
>28):
128):
:28:
>» 28k:
S iLts} &
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Seud; loose cirro-strati; cirrous haze.
Id. ; cirro-cumulo-strati ; cirro-strati.
Id. ; id.
5 id.
id.
Thick scud; reddish cirro-strati to NE. and NW.
ioks cirro-strati.
Masses of seud and cirro-strati.
Scud ; loose cirro-cumuli.
Iiok & aida =
ih: id.
Cirro-cumulo-strati.
@00_
wy
drops of rain.
Cirro-cumulo-strati.
Seud ; cirro-cumulo-strati ; cirri.
ales id.
lighe
lige
Loose cirro-cumulo-strati ; cirro-strati.
Scud ; loose cirro-strati.
Id.; cirro-strati; patches of linear cirri.
Loose scud on hor. ; cir. scud ; cirro-strati ; cirri ; shower }
Scud ; cirro-stratous scud ; cirro-strati. [to NE. ©}
Idi. id. ; lel, © drops of rain.
1fglge id. ; id. ; id.
Id. ; TOL? id.; id.
Thick scud ; cirro-strati; occasional rain "”-
Seud ; loose cumuli; cirro-strati; cirri.
Id. ; TG |S Th id.
iG; Ae id.
lige ri ae id., tinged red.
Id. ; id. ; id.
Clouds to E. yd}
Loose scud ; cirro-strati; woolly cirri to E. DI
Fine sheets of cirro-cumuli. >|
Streaks of thin cirro-strati; very slight haze. »)
Patches of loose cirro-strati ; id. y
Patches of loose cirro-strati. y
At 135 40™ sky clouded = 9; cir.-cum.-str. ; corona.
Woolly cirri.
Dense fog.
Id.; objects invisible at 200 yards.
Id. ; id.
Id. ; id. 150.
Loose cirro-cumuli; fog as at last hour.
Id. ; cirri; fog at a distance.
Cirro-cumulo-strati ; id.
lich, 2 cirro-strati; cirri; fog on hor. ©
Loose cirro-cumuli ; cirri; cirrous haze ; no fog. eC}
Woolly cirro-cumuli ; woolly cirri; cirro-strati; fog. |
Id. ; cirro-strati ; cirrous haze. (>)
Nearly homogeneous cir.-str. and cir. haze; faint halo. 6
Patch of scud ; dense cirro-strati and haze.
Cirro-strati; haze; woolly cirri.
lok = id.; cirrous mass.
Id. ; id.
Dense cirrous mass.
‘ The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, EH. =8,S.= 16, W.= 24. ‘The
notions of the three strata of clouds, Se. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Gott Barko-
Mean METER
Time at 32°
de ib. in
22 9 || 29-263
10 261
11 264
12 261
233|| 29-218
23 13 || 29-266
14 271
15 276
16 278
17 277
18 301
19 326
20 365
21 389
22; 429
23 458
24 0 513
1 564
2 605
3) 645
4 665
i) 689
6 713
th 740
8 764
9 781
10 804
11 823
12 834
13 || 29-859
14 873
15 878
16 876
17 881
18 878
19 874
20 889
21 896
22 882
25 876
25 0 864
1 840
2 802
3 763
4 (tk
5 701
6 666
7 631
8 599
9 549
i0 499
11 440
12 373
13 || 29-319
14 283
Hovurty METEOROLOGICAL OBSERVATIONS, FEBRUARY 22—25, 1845.
36:3 | 33-8 | 2-5 | 0-5 | 0-2
35-4 |33-4 | 2-0 || 0-2 | 0-4
37-2 | 33-2 |4-0 | 0-6 | 0-6
39-2 | 33-9 |5-3 11-5 | 1-2
34-4 | 32-8 | 1-6 || 2-2 |0-8
34:8 | 32-6 | 2-2 | 1-0 | 0-8
34-4 | 31-9 | 2-5 | 1-3 | 0-6
34.4 | 32-0 | 2-4 10-8 | 0-4
33-5 | 30-3 | 3-2 | 0-4 | 0-1
27-7 | 26-6 | 1-1 | 0-0 | 0-0
24-7 | 25-0 0-0 | 0-0
24.4 | 24.7 0:0 | 0-0
25-2 | 25.3 0-1 | 0-0
23.4 | 23-8 0-0. | 0-0
23-7 | 23-3 | 0-4 || 0-1 | 0-0
23-4 | 22-9 |0-5 || 0-1 | 0-1
21-3 | 21-3 0-1 | 0-0
21-3 | 21-3 0-1 | 0-1
20-3 | 20-3 0-1 | 0-1
19-2 | 19-2 0-1 | 0-1
19-2 | 19-2 > || 0-2 | 0-2
18-1 | 18-1 0-0 | 0-0
16-9 | 17-0 | ..- || 0-0 | 0-0
19-8 | 19-6 | 0.2 | 0-2 | 0-1
23-0 | 22-3 |0-7 || 0-2 | 0-0
35-8 | 34-6 |1-2 || 0-9 | 0-8
36-4 | 35-0 | 1-4 | 0-8 | 0-5
37-0 | 35-8 | 1-2 || 1-2 | 0-4
36-7 | 35-9 10-8 || 0-5- | 0-5
THERMOMETERS. WIND.
Maximum
Dry. | Wet. | Diff.|| forcein [From
14, , 10™.
g o |e Tbs. | Ibs.
32-5 | 31-0 | 1-5 || 0.2 | 0-2
32-0 | 30-2 | 1-8 || 0.2 | 0-0
32-6 | 30-5 |2-1 || 0-0 | 0-0
32-0 | 30-3 | 1-7 || 0-1 | 0-0
32-1 | 28-5 | 3-6 || 0-2 | 0-0
33-6 | 32-5 | 1-1 110-5 | 0-0
33-4 | 32-5 |0-9 ||0-0 | 0-0
33-8 | 32-6 |1-2 ||0-0 | 0-0
34-0 | 32-5 | 1-5 || 0-0 | 0-0
34-7 | 32-6 | 2-1 0-3 | 0-3
36-0 | 33-0 | 3-0 || 0-4 | 0-2
36-8 | 33-8 | 3-0 || 0-5 | 0-3
Clouds,
Sc. : C.-s.: Ci.,
moving
from
wes
canno!] SS
alwolosI®&
|
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Dark; 95 15™, particles of snow.
Cirro-strati, more broken than at 9".
Id.
Td.
Sunday—a.om., clear; a few woolly cirri. P.m.—Oy
cast with cirro-stratous scud ; air very dry all day
Thick seud and cirro-strati.
Id.
Cirro-stratous scud.
Id. ; drops of rain or snow.
Id. [white to ]
Loose seud ; cirro-stratous scud, orange-coloured ; grou
ids cirro-cumulo-strati ; cirro-strati.
Cirro-stratous scud ; cum. and cum.-strati on horizon.
Loose cumuli ; id. :
Loose scud ; loose cumuli; cirro-stratous scud ; hail showers aroun
1G hs Tdi: id. ; id.
Id.; particles of hail and snow; id.
Id.; cirro-stratous scud ; cumuli to E.
UGlaes id, on horizon.
Tals id. id. bd
Loose cumuli to E.; slight cirrous haze on horizon.
Patches of cirro-stratous scud to N.; cir. haze to SW
Very clear; very faint aurora. 4
ike auroral arch 8° altitude.
Streak of cloud to NE.
Linear cirri to 8.; auroral light to N.
Id.
Id.
Cirro-strati; cirri to S.
lets id. to SW.
Cirro-strati and cirri to SW.
Thin cir. and cir. haze near hor., cum. low on E, hor,
Cirro-strati and cirri. ;
Id. to SW.
Clear ; a few patches and streaks of cirri.
Slight cirrous haze on horizon ; cirro-strati to SW.
Patches of cirri and cirro-strati to W. and SW.; thick haze to E,
Id.; id.
Striated and vertebrated cirri; haze on horizon.
Masses of cirro-strati and cirrous haze to W.
Cir.-cum. scud and loose cir.-str.; cirri; cirrous haze; faint ha
Loose cir.-str.; mass of cir. lying NW byN.; cir.
Cirro-strati and cirrous mass.
Cirrous mass.
Id. ; dark.
Td: 5 id.; snow?”
Id. ; id.; rain®?
Td. ; id.; rain?
Tas?) zat.
Id. ;? rain”
iGbs rain?
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.= 8, 8.= 16, W.= 24 he
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Hexahedral particles of snow or hail, plano-convex; snow outside, with an icy crystal within.
Feb. 244 85, Zodiacal light to W. 25¢ 1. Many spots on the sun to-day, and for the last three days.
Feb. 234 20,
itt.
2an
me.
h.
15
16
‘ile
18
BaRo-
METER
at 32°.
in.
29-245
773
791
787
HourLy METEOROLOGICAL OBSERVATIONS, FEBRUARY 25—27, 1845. 157
THERMOMETERS.
Dry. | Wet.
36-8 | 36-0
37-7 | 37-1
39-1 | 38-1
40-4 | 38-4
39-9 | 37-9
41:0 | 38-7
41-1 | 39-0
41-3 | 39-2
42-5 | 39-8
41-0 | 39-3
39-7 | 38-2
39-4 | 37-6
39-2 | 37-3
38-8 | 37-7
35-7 | 33-1
36-6 | 34-1
Diff.
St
BS Pe © ONT
WIND.
|| Maximum
nee ehOzaS
bo
bo
CO ee Se eS Se EH OO
force in |Fyom
Clouds,
Se. : C.-s. :Ci.,
moving
from
pt. pt. pt.
24:—:—
24: — :—
24 :26:—
| [eres esr vebris
|
|
22: ==
12:—:—
13: 14:—
13:13:—
Sk
clouded.
Species of Clouds and Meteorological Remarks.
Clouds rather broken ; rain”?
Seud; rain”®
Id.; cirrous clouds; rain at intervals.
Patches of scud, very low; watery cir,-str.; corona, ) |
dis cirro-strati.
Jick id.; _ cirrous mass.
Dense homogeneous mass ; patches of scud ; rain?”
isle rain!
Seud ; cirrous mass.
ligls ¢ id. ; rain?
Ife he id.
Loose seud ; cirro-strati; cirrous mass.
des idles id.
tae id. ; id. ; rain?
Tigi, & id. ; id.
Id. ; cirro-stratous scud ; cirro-strati, red to E.
Cirro-stratous scud.
Very dark.
Id.
Id.
Overcast with dense clouds; rain”?
lich 2 id.
Cirro-cumuli ; cirro-strati.
Tdi: id.
Id. to S.; milky to N.
Scud in detached masses ; cirro-cumuli to S.
Cirro-cumulous seud ; cirro-cumuli.
Thick scud and cirro-strati.
Id. ; red opening to H.
Loose scud ; cumuli to N.
Scud and loose cumuli; cumuli; cirro-strati; cirri.
Cumuli; cumulo-strati; cirro-strati; haze on hor.
Ich. 8 cirro-strati; haze on horizon.
Scud and loose cumuli; cirro-strati.
Id. ; id.
Seud ; loose cumuli and cumulo-strati,
Id.; cirro-stratous scud ; cirri.*
Cirro-stratous scud ; linear cirri.
IG Tiel, halo.
Scud ; cir.-str. ; cirri and cir. haze ; cum.-str. on K. hor.
Idi; id; mot. cir.; cir. haze; id.
Seud and cirro-strati.
Overcast.
Id.; sky clouded = 6 at 95 30™.
Scud and cirro-strati.
ns
© OD0O000O
Id.
Scud and cirro-strati; dark.
Id.; id.
Id. ; clouds breaking.
Id.
Id. ; drops of rain.
Id.
Dense scud.
Scud; cirro-stratous scud.
iliclaes id.
Loose ragged scud; cirro-stratous scud.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H. = 8,8.=16, W.= 24. The
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
* See additional Meteorological Notes after the Howrly Meteorological Observations.
MAG. AND MET. oBs. 1845.
158 Hovurty METEOROLOGICAL OBSERVATIONS, FEBRUARY 27—Manrcu 3, 1845.
Gott. BaRo-
Mean METER
Time at 32°.
Gly) mln in.
27 23 || 29-789
28 0 794
1 786
2 THUS
3 i
4 767
5 770
6 779
a 779
8 775
9 776
10 776
11 776
12 771
13 || 29-769
14 757
15 742
16 736
Wi ei
18 728
19 730
20 oe
21 731
22 726
23 721
1 O TNS
1 700
2 688
3 678
4 667
5 664
6 665
7 663
8 656
9 653
10 650
11 644
12 639
234 29-691
2 13 || 29-487
14 467
15 457
16 460
17 482
18 485
19 505
20 541
21 589
22 626
23 646
13 0 676
1 685
2 693
3 705
4 || 720
THERMOMETERS.
WIND.
Maximum
Dry. | Wet. | Dift.|| force in [Prom
1». | 10™,
@ eo lbs. | Ibs. pt.
37-7 | 34-7 | 3-0 || 1-2 | 1-2 | 14
38-1 | 35-1 | 3-0 | 1-7 |1-3 | 13
39-4 | 35-3 | 4-1 || 2-3 |1-3 | 15
38-8 | 34:3 | 4-5 || 2-3 |1-8 | 15
38-4 | 34-4 |4-0 | 2-2 | 1-8 | 15
36-7 | 33-0 | 3-7 || 2-2 | 2-2 | 15
34:3 | 31-0 |3-3 || 1-8 | 1-4 | 15
31-3 | 29-0 | 2-3 ||0-7 |0-6 | 15
30-7 | 28-7 | 2-0 || 1-2 |0-9 | 14
30-7 | 28-4 | 2-3 || 1-1 |1-0 | 14
31-0 | 28-4 | 2-6 || 1-6 |1-1 | 14
30-4 | 28-0 | 2-4 || 1-4 | 1-1 | 14
29-7 | 27-6 | 2-1 || 1-8 |1-2 | 15
28-8 | 26-9 | 1-9 || 1-5 | 1-2 | 15
28-4 | 26-9 | 1-5 || 1-4 | 1-0 | 15
28-8 | 27-0 | 1-8 || 1-4 {0-9 | 15
28-3 | 26-7 | 1-6 |) 1-4 | 1-2 | 15
29:0 | 27-3 | 1-7 || 1-4 |0-9 | 15
29-6 | 27-8 | 1-8 || 1-2 | 1-0 | 15
29.8 | 27-9 | 1-9 || 1-3 |0-6 | 16
29-8 | 27-8 | 2-0 | 0-9 |0-5 | 16
30-0 | 28-0 | 2-0 || 1-1 | 0-4 | 16
30:7 | 29-0 | 1-7 0-4 |0-2 | 16
32-6 | 31-0 | 1-6 || 0-2 |0-2 | 15
34-0 |32-0 | 2-0 | 0-3 |0-2 | 14
35-0 | 32-6 | 2-4 ||0-2 |0-1 | 20
35-3 | 32-8 |2-5 ||0-3 10-3 | 16
35-7 | 33-8 | 1-9 || 0-3 |0-3 | 20
35-3 | 33-8 | 1-5 || 0-3 |0-2 | 20
34-8 | 34-0 10-8 | 0-3 | 0-2 | 17
34-2 | 33-4 |0-8 ||0-2 |0-1 | 20
33-7 | 33-0 | 0-7 || 0-2 10-1 | 19
33-3 | 32-7 |0-6 || 0-1 |0-0 | 19
33-3 | 32-6 | 0-7 || 0-2 |0-1 | 19
33-3 |32-6 |0-7 || 0-1 |0-0 | 19
33-3 | 32-6 | 0-7 ||0-0 |0-0 | 19 |
33.4 | 32-7 |0-7 || 0-2 |0-0 | 21
33-3 | 32-6 |0-7 || 0-0 | 0-0 | 20
40-7 |37-5 | 3-2 | 0-8 |0-5 | 28 |
41-2 | 40-0 | 1-2 | 0-5 |0-2 | 20
40-8 | 39-8 | 1-0 | 0-2 |0-1 | 22
38-9 | 38-2 |0-7 || 0-1 |0-0 | 27
40-7 | 39-0 | 1-7 || 0-7 | 0-6 | 31
37-0 | 36-2 | 0-8 || 1-2 |0-3 | 31
38-6 | 37-9 | 0-7 || 0-8 | 0-6 | 30
38-2 | 37-9 |0-3 || 1-1 | 0-4 2
36-9 | 36-4 | 0-5 || 0-6 | 0-5 3
36-9 | 35-9 | 1-0 || 0-5 | 0.2 4
36:6 | 35-4 | 1-2 || 0-6 | 0-3 9
36-1 |35-0 | 1-1 || 0-5 {0-1 | 10
35-8 | 34-8 | 1-0 | 0-2 |0-1 | 12
37-3 | 35-7 | 1-6 || 0-2 |0-1 | 10
37-6 | 35-0 | 2-6 || 0-2 | 0-1 8
36:6 | 34-2 | 2-4 0-3 |0-2 | 12
136-3 | 34-0 | 2-3 ||0-4 |0-2 | 12
18:—:—
Wor ae Species of Clouds and Meteorological Remarks.
0—10.
9-9 | Scud; loose cumuli; cirro-stratous scud.
9-5 || Id.; id.
9-0 || Id.; id.
5:0 Ids id. loose cirro-strati.
6-0 || Id; ade: id. > patches of cir,
3:0 || Id.; ads: id: thin cirri.
2-0 | Woolly cir. ; masses of scud ; cir.-str. ; part of a halo.
5-0 | Masses of scud ; cirro-strati.
4:0 | Scud; cirro-strati; woolly cirri.
2.0 || Id; id.
6:0 | Chiefly thin clouds; lightish to W.
3-0 | Clouds to E.
1-0 | Cirro-strati? to E.; sky milky; hazy on horizon.*
0-8 | ihe id. ; i
3-0 || Cirri; cirrous haze; sky milky ; hazy on horizon,*
6-0 || Id.; id. ; ides faint aurora ?
3-0 || Cir.-str. ; cir. ; cir. haze ; id. ; id.
9-5 Id. ; cirrous haze.
10-0 lass id.
10-0 || Id.; id. ; much thicker.
10-0 | Seud and cirro-strati; reddish to E.
10-0 | Cirro-strati; cirrous mass.
10-0 | Dense cirro-strati; fine mealy snow’?
10-0 td; id.
10-0 |) aes flakes of snow.
10-0 | Seud? dense cir.-strati; id.
10-0 || Id.; id.
10-0 | Id.; id. ; snow’?
10-0 || Id.; id. ; snow!
10-0 || Id.; id. ; snow"?
10-0 |, Id.; nde snow”
10-0 | Homogeneous mass of cirro-strati ? snow?
10-0 | As before; snow?
10-0 | Id.; snow?
10-0 | Id.; snow’?
10:0 | Id.; snow?
10-0 Id.
10-0 | Id.; sky clouded = 9°8 at 11 30™.
Vos a.M. Generally clear; loose woolly cirro-stt
Hage |) p.m. Overcast with dense cirro-strati.
7-0 | Scud; stars dim; sky milky to N.
8-0 de; id.
9-9 Id.
10-0 Id. ; dark.
9-5 Tes rain’?
10-0 }) Id.
10-0 || Misty seud; rain”?
10-0 | Id.; — rain®?; clouds yellow to E.
10-0 | Seud.
10-0 || Id.
10-0 | Id.
10-0 | Id.
10-0 | Id.
10-0 | Id.; moving very slowly.
10-0 Id.; dense mass of cirro-strati.
10-0 | Ia; id.
The direction
Feb. 284 9h,
Feb. 284 125,
of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E.= 8, S.= 16, W.= 24.
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
The water in the wet bulb cistern is not freezing.
The water seems to be freezing at the bottom but not at the top of the wet bulb cistern.
* See additional Meteorological Notes after the Hourly Meteorological Observations.
HourLy METEOROLOGICAL OBSERVATIONS, Marcy 3—5, 1845. ; 159
THERMOMETERS.
WIND.
at 32°. Dry. | Wet. | Diff.
x
Ro)
—
w
NS)
oo
ww
=
3 oo
Cor = te ee PD NO
Om wwoarnwaiH.PN ?
779 || 30-8 | 30-2 | 0-6
Do PWN RF OWN FOO ON OOF wW NF OC ON OOF WN Fr OWNFOOCON OO RW NRO ONS Or
wo
(=)
S ~I
S We)
oe) or
wo wo
bo i)
=) “I
bo bo
No) (oo)
vw mS
wo bo
on) oo
oon an
i=)
> 1S)
(Sv)
bo
v
bo
oO
ive)
—
lee}
ie
S
Oo
_
bo
eel
for)
bo
lor)
I
SS)
We)
Maximum
force in
DS
SOOO S29 SSO 2009 2°
Mm DOK KH DOD BD BR RK RB RK SB OF KF KS IK
10™
i-a
77
eS esosooooos
— (a eel ee el ce ee
=
ANOCKHAANOCOMOANUNALKL A
—
bo
Clouds,
Se. : C.-s. :Ci.,
moving
from
pt. pt. pt.
20 :—:—
—:12:—
oeol | | ae
[Tlasol lt
|
ws
|
|
Sky
clouded,
Species of Clouds and Meteorological Remarks.
Scud; dense mass of cir.-str.; a few fine particles of snow.
Tas role Be snow?”
Id. ; nel & id.
lich, § id.
Ile, 2 id. dark.
Id. ; nl 2 id,
Cirro-strati; cirri; cirrous haze; sky milky.
Id. 2
‘Cirro-strati 2
Id. 2
ld; cirri; cirrous haze; stars seen.
ld; Glee id.
Id. ; TO id.
Hele broken to E.
lGee 1d. 5 flakes of snow.
Id. ; dense cirrous mass ; sky to S.; haze to N.
Cirro-strati and dense cirrous haze. (2)
Patches of scud ; cirro-strati and dense cirrous haze. @
Loose seud; cir.-str.; cir. mass; haze; flakesofsnow. @
Cirro-strati; dense cirri; haze; snow!
ay; ik, id.; snow?
Id. ; id.
dee 10) snow !
Seud ; cumuli; cumulo-strati ; cirro-strati ; snow?
Id.; cirro-stratous scud ; cumulo-strati to E.
Cirro-cumulous secud.
Id., radiating from NNW.
Cirro-stratous scud on E. horizon.
1G, & zodiacal light visible.
Cirro-cumulous scud.
Loose scud; cirro-strati; flakes of snow.
Id. ; id.
Snow °?
Id.
Stars dim.
Clouds near horizon.
Snow °°
Snow !
Snow 2
Cirro-cumuli ; snow °° ‘
Seud and cirro-cumuli.
Seud; cumuli; cirro-strati on horizon; snow °°?
Cirro-cumulous seud ; snow 9?
Id. ; cirrous haze,
Send ; cirro-cumuli; fine cumuli to SW. and NE.
Id. and loose cumuli ; id. on horizon.
Loose cumuli and nimbi; snowing around.
Seud ; cumuli and nimbi; flakes of snow.
ligh® id. ; snowing around.
ligle id.
Cumulo-strati and haze on horizon.
Clouds near horizon. ;
Thin clouds.
Snow °°
Snow ?
Clouds to E.
©COO08e OO O
he direction of the wind is indicated by the number of the point of the compass, reckoning N. =0, B.=8,S.=16,W.=24. The
ion of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
flarch 42 3h. The snow has melted on reaching the ground, throughout the day.
larch 44 6h, Observation made at 62 20™,
xiii aa oo
160
Gott. BarRo-
Mean METER
Time. at 32°
Gans in.
5 13 || 30-109
14 V7
15 118
16 121
17 130
18 143
19 144.
20 ent
21 170
22 177
743) 179
6 0 188
1 186
2 183
3 182
4 183
5 181
6 186
ih 187
8 193
9 189
10 187
ll 194
WV} 196
13 || 30-189
14 187
15 190
16 189
W7¢ 183
18 189
19 187
20 192
2) 206
22 203
23 215
7 217
1 215
2 200
3) 192
4 183
5 177
6 165
7 163
8 161
9 163
10 161
1] 156
12 149
13 || 30-140
14 Lehr
15 131
16 118
17 iil y/
18 Il}
19 Lil7é
20 121
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.= 8,8. =16,W.=24. |
motions of the three strata of clouds, Se. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
March 64 202. White smoky scud rising, as if from a fire, on N. horizon.
Hourty METEOROLOGICAL OBSERVATIONS, Marcu 5—7, 1845. 4
THERMOMETERS.
Wet.
COD = BOR Re Se eS
37-9
38-4
Ananahwad bBNUWaAAaANSD
Diff.
Maximum
force in
10e.
StS Hee SSSOSHEHSSSSSSSSSSS
SJE RO BP wOadawWIdMNMHSOOwMHEBHFSOeAeAe
0-6
Oz;
WIND.
From
Ne ARNO NWON KNW KOO
wNMNonwsonrK OC KF OrFNNOFOS
Clouds,
Sc. : C.-s. :Ci.,
moving
from
pt. pt. pt.
eS
IO
AOD
ae ee | ae ee
4:—
4: 6:—
Sky
clouded.
Shower of hail since 194.
Species of Clouds and Meteorological Remarks,
Snow?
Seud.
Flakes of snow.
Stars dim.
Seud ; snow??
lds:
Dense mass of cirro-strati; snow"?
Cirro-stratous scud ; cirro-strati; flakes of snow.
snow?
id.
snow?”
sky toSW.
Clouds broken ; stars dim.
Seud.
Td.
Id.
Cirro-stratous seud ;? sky on zenith.
Id. 2
Td. ?
Id. ; 2
Td. 2
Id. 2
Cirro-cumulo-strati; day-break.
Scud and cirro-cumulo-strati; loose cumuli.
icles: id. ; haze.
Seud ; dense cirro-stratous scud and cirro-strati.
Id.; cirro-stratous scud.
iGheg id. ; rain”?
Cirro-cumulo-strati; cirro-strati.
Seud. ; cirro-strati.
If loe 1d.
ifs Ae id. [cirro-st
Low detached masses of scud ; ragged cumuli on N. |
Smoky scud; cirro-stratous scud.
Seud ; id.
id. :
td;
Id. ;
drops of rain.
a few hail-stones.
Loose scud ; cirro-cumulo-strati 2
Hovurty METEOROLOGICAL OBSERVATIONS, Marcu 7—1LI1, 1845.
: THERMOMETERS.
Stt. Baro-
2an METER
me at 32° Dry. | Wet. | Diff.
h. in. S bd 2
91 || 30-131 || 40-0 | 38-6 | 1-4
22 144 || 41-0 | 39-0 | 2-0
23 153 || 42-3 | 40-0 | 2-3
0 165 ||41-6 | 39-8 | 1-8
a 168 || 43-3 | 40-2 | 3-1
2 167 || 44-0 | 40-7 | 3-3
3 162 || 43-7 | 40-8 | 2-9
4 162 || 44-8 | 41-0 | 3-8
5 165 || 42-3 | 40-3 | 2-0
6 172 || 40-6 | 39-2 | 1-4
7 173 || 40-3 | 39-3 | 1-0
8 190 || 40-4 | 39-6 | 0-8
9 196 || 40-6 | 39-7 | 0-9
10 210 || 40-8 | 39-7 | 1-1
11 222 || 40-2 | 39-2 | 1-0
12 234 || 40-2 | 39-2 | 1-0
234|| 30-244 || 42-3 | 39-6 | 2-7
13 || 30-156 || 40-6 | 38-3 | 2-3
14 147 || 39-4 |37-7 | 1-7
15 131 || 38-8 | 37-3 | 1-5
16 123 || 39-7 |37-6 | 2-1
17 112 || 39-9 |37-6 | 2-3
18 101 || 38-9 |37-4 | 1-5
19 083 || 38-9 |37-5 | 1-4
20 089 || 39-2 |38-0 | 1-2
21 082 || 41-0 | 39-6 | 1-4
22 077 || 40-4 |39-7 | 0-7
23 060 || 43-7 |41-7 | 2-0
| 0 046. || 45-2 | 42-2 | 3-0
1 036 || 46-0 | 42-5 | 3-5
2 018 ||45-8 | 42-2 |3-6
3 ||30-001 || 46-3 | 42-4 | 3-9
4 || 29.972 ||46-5 | 42-1 | 4-4
| 5 948 || 46-1 | 41-5 | 4-6
16 937 || 44-7 | 40-8 | 3-9
tiv 928 || 43-5 |40-6 | 2-9
18 958 | 37-5 | 36-4 | 1-1
19 966 || 36-8 | 34-9 | 1-9
110 |} 960 | 36-4 | 33.5 | 2-9
‘ll 953 || 35-2 |32-1 | 3-1
(2 961 || 33-0 |30-0 | 3-0
13 || 29-957 || 33-2 | 29-8 | 3-4
14 941 || 32-2 | 28-9 | 3-3
15 928 || 31-0 | 28-1 |2-9
16 900 || 30-7 | 27-7 | 3-0
17 890 || 30-7 | 27-3 | 3-4
18 881 || 29-4 | 27-0 | 2-4
19 873 || 30-6 | 26-9 | 3-7
20 859 || 31-2 | 29-5 | 1-7
21 871 || 32-8 | 31-6 | 1-2
| 2 853 || 33-8 | 31-4 | 2-4
23 873 || 35-7 | 32-4 |3-3
1} 0 869 || 34-3 | 31-3 | 3-0
ine 858 || 35-8 | 32-3 |3-5
| 2 831 ||37-1 |32-4 | 4-7
| March 82 04.
March 104 194.
WIND.
Maximum
force in |Prom
14, | 10™.
lbs. lbs. pt.
0-6 | 0-6 2
0-8 | 0-6 2
0-9 |0-5 3
0-8 |0-9 2
1-0 |0-8 2
1-2 | 1-0 3 |)
1-2 | 1-2 3
1:5 | 0-5 2
1-2 | 1-7 4
1-5 | 1-2 3} ||
0-9 |0-8 | 2 |
1-1 |0-7 2
0-7 | 0-6 3
0-8 |0-5 3
0-6 | 0-4 3
0-5 |0-4 3
0-6 |0-1 0
0-9 |0-6 0
0-6 | 0-1 0
0-3 | 0-1 0
0-4 |0-1 0
0-4 | 0-4 0
0-7 |0-6 | 29
0-5 |0-6 | 30
0-4 |0-2 | 20v.
0-4 |0-3 | 29
0:3 |0-2 | 29
0-3 |0-4 | 30
0-7 | 0-7 1
0-8 |0-7 | 31
0-7 | 0-4 0
0-4 |0-3 | 30
0:4 |0-3 | 30
0-5 |0-2 | 30
0-4 |0-2 | 29
0-2 |0-2 | 29
2-5 | 1-7 2
3-0 | 1-0 1
2-5 |3-0 1
3-7 | 2-7 0
2-2 10-5 0
2-9 | 1-7 0
1-8 | 1-7 0
1-8 | 1-3 | 31
1-4 /1-9 | 31
2-3 |0-8 | 29
1-4 |0-5 | 29
1-0 |1-1 | 29
2-1 |1-6 | 29
1-2 |1-5 | 29
1-4 |1-3 | 31
3-0 |2-5 | 31
2-5 |1-6 | 31
2-3 |2-3 | 30
3-6 |2-3 | 31
Observation made at 04 5m,
The ice removed from about the vane of the anemometer ; some of the last indications of the anemometer are too small,
5 the vane was fixed, with the opening towards N by H.
* See additional Meteorological Notes after the Hourly Meteorological Observations.
wwrmoARAKRAAAE
bo
(SX) oo
Clouds,
Se.: C.-s,: Ci,
moving
from
|
+
“rg
(—
Ll bole
Sky
clouded.
eeeeee
161
Species of Clouds and Meteorological Remarks.
Loose secud; cirro-cumulo-strati? cirro-strati.
Id. ; id. ; id.
id. ; cumuli to N.
cirro-cumuli; woolly cirro-cumuli.
Id. ; 1s id.
Seud ; cumuli; cirro-cumulo-strati.
Id.; woolly cirro-cumuli.
©
Id.; cir.-str. seud; cir.-str.; 4" 8™, hail-shower.
Id.; id. ; showers of rain since 44,
Dense scud ; rain!—?
Id. ; id.
iG&e rain”?
Id. ; rain occasionally.
Very dark.
id.
Id.
Sunday—Overcast ; cirro-cumulo-strati; scud.
Scud.
Id., &c.; slight shower lately.
Id.; cirro-cumulo-strati? sky milky.
Id. ; id. ; aurora seen. to N.
Id. ; id. ; drops of rain.
Id. ; id. ; 18 10™, shower?®
Loose scud and cirro-stratous scud.
Id.
Dense mass of cirro-strati; nearly homogeneous.
Id. ; fogey ; 215 50™, Scotch mist.
Id.
Cirro-stratous scud ; cirrous mass.
Scud ; cirrous mass.
Id.; cirro-stratous scud.
lige id.
Id. ; id. ; cumuli on E. horizon.
Cirro-stratous scud ; loose cumuli and scud.
Scud ; cirro-stratous scud ; clouds coloured.
Heavy electric-looking masses of scud.*
Seud ; rain?
Id.; sky to NNE.
Id.; shower of fine-grained snow!
Id.
Id.
Scud ; shower of snow?
Id.
Id.
Id.
Id.
Td.
Thin scud.
Cir.-cum.scud; snowshowersatintervals; snowing around.
Id. ; snow”
Thin scud ; cumuli and cirro-strati on horizon.
Id. ;
oO
cir.-cum.-str. ; cir.-str. ; cum. to S. ; nimbi.
Scud ; loose cumuli; haze on horizon. ©}
Id. ; dees cumuli and cirro-strati. ©
Id. ; id. ; id.
MAG. AND MET, oss. 1845.
Gott. BARo-
Mean METER
Time. || at 32°.
Gh Jak in.
11 3\| 29-826
4 804
5 803
6 802
7 797
8 793
9 788
10 789
11 789
12 781
13 || 29-777
14 770
15 762
16 752
17 753
18 747
19 752
20 753
21 754
22 745
23 736
Ne) 725
1 718
2 707
3 700
4 698
5 698
6 695
7 701
8 706
9 702
10 702
11 694
12 685
13 || 29-678
14 674
15 655
16 647
if 646
18 652
19 664
20 678
21 689
22 680
23 690
3 0 677
i 656
2 634
3 605
4 583
5 556
6 538
7) 526
8 522
9 511
10 500
HourLy METEOROLOGICAL OBSERVATIONS, Marcu 11—13, 1845.
Dry. | Wet. | Diff.
29-2
28-0
27-1
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8,S.= 16, W.= 24.
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
March 124 192.
32-0
31-6
31-5
30-1
22-2
22-7
23-1
23-2
22-5
23-4
23-7
25-3
25-7
26-7
27-9
28-7
29-2
28-9
28-9
27-0
26-1
25-0
24-6
THERMOMETERS.
WIND,
Maximum
force in |Pyom
yh, | 102,
o
AORuoaUWWwWNWN HK ©
Clouds,
Sc. : C.-s.: Ci.,
moving
from
pt. pt pt
eS)
o
27 :—:—
Ice removed from the vane of the anemometer.
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Seud ; cirro-strati; nimbi.
Id.; loose cumuli; id.
Id. ; id. ; id.
Cumulo-strati ; nimbi and cirro-strati on horizon.
Seud; cumulo-strati; nimbi; cirro-strati.
Cumulo-strati, &c., on horizon.
Clouds on horizon.
Id.
Id.
Id.
Clouds on horizon, principally to E.
Id., id.
Seud ; snow!
Id. ; snow?
Clouds to E.
Id.
Snow?
Seud; loose woolly cir.-cum.; snow-showers since last obs
Id.; loose cum. ; woolly cir.-cum.; snow at intervals,
Woolly cir.-cum.; cum.-str. on E. and N. horizon.
Cumuli and cum.-str. to E. and N,; cir.-str.; patches of cirri, |
Loose cum. to E. and N.; nimbito NW. patches of cir.¢
Cumuli and seud, both white. Z
Id. [snow. |
Td. ; thick watery cloud to E., falling i
Seud and cum. ; sheets of watery cloud. f
Loose cumuli and cumulo-strati.
idly cumulo-strati ; cirro-strati.
Cumulo-strati; cirro-strati and haze on horizon.
Clouds and haze on horizon.
Id. on E. horizon.
Id.
Cirrous clouds to E.
Cirro-strati to E.
Cirro-strati to E.; very clear.
Id. ; clouding over very quickly.
Cirro-strati ?
Cirrous clouds ; snow"?
Td: 5 id.
Id.
Id.
Cirro-cumuli and cirro-stratous scud; cirro-strati. —
Cirro-cumulo-strati to SE.
Td. and haze on E. horizon.
Patches of scud and haze.
Td.
Patches of scud and cirro-strati.
Patches of cirri to N.
Id.
Patches of cumuli; cirro-strati.
Cumuli and cirro-strati on horizon.
Loose cirro-strati and cirro-cumuli; cum.-str. to NE,
Id. and cirrous haze. uy
Cirro-strati; thin cirri; lunar corona.
Cirri.
Hazy on H. horizon ?
Hourty METEOROLOGICAL OBSERVATIONS, Marcu 13—16, 1845. 163
THERMOMETERS. WIND.
ae Clouds,
4 an Maximum Bere Cee Ot Sky Species of Clouds and Meteorological Remark
ne. || at 32°. | Dry. | Wet. |Dift.|| force in [From eee Clouded : Sate k eee OLY eae
1h, |10™,
h. in. Ss ¢ y lbs. | Ibs. pt. pt. pt. pt. 0—10.
11 || 29-488 | 26-5 | 24-0 | 2-5 || 0-2 |0-2 | 24 0-5 || Sheets of thin filmy cirri, chiefly to N. y
12 482 | 26-5 | 24-3 | 2-2 ||0-5 |0-2 | 24 0-3 || Patches and sheets of thin cirri. y
13 || 29-488 || 25-6 | 23-9 | 1-7 || 0-2 |0-1 | 20 2:0 || Thin cirri and haze over the sky.
14 485 || 26-3 | 24-9 | 1-4 || --- |0-4 | 26 2-5 || Thick clouds to E.; haze; stars dim.
15 480 || 26-7 | 25-2 | 1-5 || 0-8 |0-7 | 31 2-0 || Cirro-strati and cirrous clouds.
16 481 || 27-0 | 25-3 | 1-7 || 1-4 |0-6 | 31 0-5 |) Cirro-strati near horizon.
17 496 || 26-0 | 24-2 |1-8 | 0-8 | 0-3 | 30 0-2 || Cirro-strati to E.
18 500 || 24-0 | 22-6 | 1-4 | 0-5 |0-2 | 28 0-8 || Cirro-strati and cumulo-strati to E.
19 500 || 22-8 | 21-6 | 1-2 | 0-4 |0-3 | 29 || —:31:—| 0-8 | Cir.-str. scud; coloured to ESE.; purplish to WNW.
20 491 || 25-3 | 23-1 | 2-2 | 0-5 |0-4 | 28 |} —:31:— 1-0 Id. (0)
(21 479 || 26-4 | 24.2 |2.2 10-5 |0-5 | 25 || —:28:—| 2-0 Id. ; cirro-strati.
22 475 || 28-8 | 25-8 |3-0 ||0-6 |0-5 | 24 || —:25:—J) 10-0 || Wavy cir.-str. and cir.-str. scud ; cum. on SE. horizon.
23 484 | 28-9 | 26-4 | 2-5 ||0-4 |0-3 | 18 || —: 8:—]} 10-0 || Cirro-stratous seud ; particles of fine hail.
0 489 || 31-5 | 28-9 | 2-6 ||0-4 |}0-2 | 12 || —: 9:—|| 2-5 libs cirro-strati ; nimbi. ©
1 511 | 35-2 | 32-2 | 3-0 || 0-2 |0-2 | 10 ||} —:10: — 8-5 Id. ; id. ; loose scud; cir.mass.Q
2 511 || 30-9 | 28-9 | 2.0 || 0-4 | 0-3 4 |}11:—: 6] 7-0 || Seud; woolly cirri; mass of cir.; cir.-str.; cum.-str. ©
3 518 || 34-3 | 31-0 | 3-3 | 0-4 |0-5 | 10 |} 11: 9:— 9:0 Id.; cirro-stratous scud; flakes of snow.
4 526 || 32-7 | 29-8 | 2.9 || 1-2 |1-2 | 8 ||11:—:—j] 9-9 || Id.; cirro-cumuli; cirrous-mass; stormy-looking.
5 547 || 29-2 | 28-2 | 1-0 || 1-9 | 1-6 8 9:—:—| 10-0 Id.; cirrous clouds; snow 4
6 579 || 28-3 | 26-7 | 1-6 || 2-2 | 2-0 8 9:—:—]| 10-0 Id. ; id. ; id.
7 617 || 27-7 | 25-3 | 2-4 |} 2-9 |1-8 | 7 10-0 || Nearly homogeneous.
8 638 || 27-2 | 24-6 | 2-6 || 2-0 |1-2 | 7 9-7 || Cirro-stratous scud.
9 656 || 26-0 | 23-6 | 2-4 || 2-1 |0-6 5 0-1 || Clear; one or two patches of cirri. y
10 664 || 25-3 | 22-3 | 3-0 || 1-3 | 0-6 4 6:—:— 1-0 || Scud. y
11 663 || 25-5 | 22-7 | 2-8 ||0-5 |0-3 | 2 || 4:—:—|| 4-0 | Scud; sky milky to N. and E. y
12 675 || 23-8 | 21-3 | 2-5 0-5 |0-3 | 2 5-0 || Cirro-cumulo-strati; bank to W. »)
13 | 29-679 || 24-0 | 21-8 | 2-2 |/0-6 |0-5 | 2 8-0 || Cirro-cumulo-strati. y
14 685 || 23-8 | 22-8 | 1-0 || 0-6 | 0-3 4 9-5 || Scud; shower of snow since last observation.
15 682 | 23-0 | 22-7 | 0-3 |/0-7 |0-2 | 2 9-5 || Id.
16 693 || 23-0 | 22-8 | 0-2 || 0-2 |0-1 2 10-0 Id.; snow;
17 699 || 19-6 | 19-0 |0-6 |}0-1 |0-3 | 6 3-5 |} Id.
18 715 || 22-0 | 21-8 | 0-2 ||0-3 |0-2 | 4 10-0 Id.; snow?
19 723 || 23-0 | 22-4 |0-6 ||0-3 |0-3 | 6 || 6:—:—|| 9-8 || Id.; cirrous haze; snow ceasing.
20 735 || 21-6 | 21-1 |0-5 || 0-2 |0-0 | 30 |} 6:—:—|| 3-0 || Id.; cirro-stratous scud. (0)
21 755 || 18-8 | 18-5 | 0-3 || 0-1 |0-0 | O || —:—: 6] 9-0 || Cirrous-like scud ; loose cirro-cumuli; snow !
22 758 || 25-0 | 24-3 |0-7 || 0-6 | 0-1 4 || 7:—:—] 9-8 || Seud; loose ragged cumuli; haze ; snow occasionally. ©
23 763 || 25-6 | 24-6 | 1-0 ] 0-1 |0-1 | 3 3-0 || Loose cumulo-strati around; fine blue sky. oO
0 769 || 31-6 | 29-8 | 1-8 0-6 |0-4 | 1 || 6:—:—| 7-0 | Scud and loose cumuli; passing showers of snow. e
1 763 || 30-6 | 28-9 | 1-7 |/0-6 | 0-5 1 7:0 Id.
2 756 || 28-6 | 27-6 | 1-0 0-5 |0-2 | 2 10-0 || Shower of snow 4
3 759 || 28-7 | 27-0 | 1-7 || 0-1 |0-1 8 | 9:—:—|| 3-0 || Scud; cumulo-strati and nimbi. (0)
4 764 || 30-7 | 28-3 | 2-4 || 0-1 | 0-4 6 || 10:—:—| 3-0 || Thin fleecy scud, rather high ; nimbi; shower of snow! ©
5 770 || 25-9 | 24-4 | 1-5 ||0-6 {0-2 | 7 || 10:—:—|| 4-0 || As before; shower to E. ©
6 789 || 25-3 | 24-7 | 0-6 || 0-2 | 0-3 8 |} 10:—:—] 8-0 Id.; | nimbi. e
7 802 || 22-8 | 22-2 |0-6 || 0-2 | 0-1 2 ||10:—:— 5:0 Id. : id.; haze.
8 821 || 21-3 | 20-6 |0-7 0-2 |0-1 | 4 8:0 || Scud.
9 821 || 21-8 | 20-8 | 1-0 || 0-1 |0-1 6 1-5 Id. y
10 826 || 21-4 | 20-2 | 1-2 || 0-2 | 0-0 1-0 || Cirro-cumulous scud. »)
11 837 || 18-6 | 17-9 |0-7 | 0-0 | 0-0 —: 6:—]] 2-5 Id. y
12 831 || 17-2 | 17-0 | 0-2 || 0-0 |0-0 | 10 9-5 Id. }
0) 29-726 | 30-7 | 28-6 |2:1 }0-9 |0-3 | 4] ||... Sunday—Overcast ; light showers of snow occasionally.
13 || 29-604 || 26-0 | 25-4 |0-6 0-8 |0-2 | 4 10-0 || Scud; flakes of snow.
14 597 || 26-2 | 25-0 | 1-2 || 0-2 |0-2 | 28 10-0 Id.
15 583 | 26-6 | 25-7 |0-9 | 0-5 |0-5 | 28 10-0 lich id,
16 572 | 26-2 | 25-1 |1-1 ||0-8 |0-5 | 29 10-0 Id.
March 13¢ 15. The vane of the anemometer found frozen up, with the opening towards SW.,ice removed ; the wind commenced to blow
March 134 22h, Observation made at 22 5m, [about 145 20™,
March 144. Flocks of lapwings, plovers, and herring-gulls, moving westward : particles of snow at 2.
March 144 214, Observation made at 215 6™.
March 144 23h. Snow 4 inches deep.
BE ES ES EE RT TLR a EET SEE
164 HourLty METEOROLOGICAL OBSERVATIONS, MArcH 16—19, 1845.
| Time. || at 32°. || Dry. | Wet. | Diff.
16 17 || 29-551 || 25-9
ie Ls 549 || 25-4
19 541 || 26-0
20 550 || 27-0
21 550 || 29-7
22 552 || 32-7
23 547 ||35-0
117 0 544 || 37-2
1 543 || 37-1
2 533 || 38-1
3 523 || 39-1
4 516 || 37-9
5 517 || 35-4
6
7
8
517 || 36-8
520 || 34-2
527 || 32-0
9 530 || 31-2
10 533 || 30-8
11 536 || 29-7
12 537 || 30-5
13 || 29-537 || 29-9
14 537 || 29-7
15 529 || 29-8
| 23 592 || 34-0
119 0 612 || 33-5
March 174 5%. The observation of the barometer was omitted, the reading given is a mean of the preceding and succeeding observations.
WHOANHNAOHAYUNHWSwHW SO
BUAawYAawW®UOMAO CHE AUWAHE AW
THERMOMETERS.
WIND.
Maximum
force in |Ryom
ph,
Oa
Clouds,
Se. : C.-s.: Ci,
moving
from
pt. pt. pt.
mero! » |
|
|
199);
Sky
clouded.
March 17419, Kelso town bell (4 miles distant) heard very distinctly.
March 184 6. Brownish atmospheric haze, very dense and even electric-looking from NW. to E.: the sun projects a strong shadow of
) the clouds in the haze. 74. Scud, forming in ragged strings below the cirro-stratous scud, and falling in showers? to N. eu
.|| Cirro-cumulo-strati.
Species of Clouds and Meteorological Remarks.
Scud.
Streak of sky on NE. horizon.
Dense homogeneous cirro-strati.
Id.
Cirrous mass ; Cirro-strati on horizon; solar halo. —
Dense irregular cirro-strati; bluish to N.
Id.
Nearly homogeneous mass of cirro-strati; sky to N.
Jigs id.
Cirro-strati, breaking in zenith.
Id.
Id.
Cirro-strati; cirrous mass.
Id. ; dee sky to NW.
Cirro-stratous scud; cirro-strati.
Cirro-cumulo-strati ; lunar corona.
Cirro-strati.
Id.?
Id.
Cirro-strati.
Id.
Mass of cirro-stratus.
As before.
Darker.
Nearly homogeneous mass of cirro-stratus.
Id.
Cirro-strati and cirrous mass.
Dense cirro-strati; rather hazy.
Td.
Id.
Cirro-cumulo-strati ; cirro-strati; haze.
Id. to 8S.
ids cirro-strati ; haze.
ids 2 BO id. on horizon.
Woolly cirro-eumuli ; haze.
Cirro-stratous scud ; woolly cirri; cirro-strati.
Loose cirro-cumulo-strati ; very hazy atmosphere.
Scud ; cirro-stratous scud ; showers to N.?
ile id..s rain®?; sky to NW.
Cirro-cumulous scud.
Td; aurora @
Scud or cir.-str. to 8. ; bands of cir. to N. ; faint halo.
Linear cirri scattered over the sky; halo.
Cirri to SE.
Clouds to NW. and SE. ; clear.
Seud.
Clouds on E. horizon.
Seud, &c., on E. horizon.
Thin cir.-cum.-str. ; cum. and cir.-str. scud on horizon
Cirro-stratous scud ; thin cirro-cumuli. 4
Thin cirro-cumuli ; cirro-strati. ig
Scud and.e#ro-cumulo-strati; flakes of snow. ~
Td. ‘
Scud ; loose cumuli; cirro-cumulo-strati.
HovurLty METEOROLOGICAL OBSERVATIONS, Marcu 19—21, 1845. 165
THERMOMETERS. WIND. Groniel
t. ieee Se.:C.-s.:Ci.,|| Sky : F
3 meee Minty dein moving Alwnaleal. Species of Clouds and Meteorological Remarks.
h. c pt.
1 29-0 | 4. : : 0 226): : Scud ; loose cumuli; cirro-cumulo-strati.
2 29.0 | 4- : : :—: ; i cirro-strati.
3 29-0 | 4: : : 229 : : : cirro-cumulo-strati.
4 29.1 | 4: : af 2: : My id. ; id.
5 27.5 |3- : ‘ -—! 3 cirro-cumulo-strati.
6 27.6 | 4: : : :—? C id.
7 27-4 | 3- . : 3 id.
8 25-5
9 25-4 | 2- : . :—: : .; cirro-cumulo-strati, causing a lun. cor. at 95 30™,
0 25-3 | 2-3 |0- : : #9 ade sky very clear. »
1 23.9 | 1- : ; . Cirro-stratous scud to E.; auroral light. y
2 Tas id. y
3 Cirro-stratous scud to E.; faint auroral light. y
[4 »)
5 )
6 )
7 »)
8 . . . . . -1_ || Clouds on E. horizon.
20 . : . . . . Cirro-strati on E. horizon. 0)
22 . . . : : oy Cirro-strati to E. Oo
23 . : . . : . Cirro-strati on E. horizon. (0)
0 Id. on NE. horizon. (0)
1 Cirro-strati and haze on EH. horizon. 0)
2 Cirri to 8.; haze or stratus on horizon. ©
3 Id. ; id. ©
4 Id. ; id. O)
‘5 : . . : : . Hazy on horizon. ©
6 Cirro-cumulo-strati to W.; haze. ©
” Cirri; cirro-strati ; much haze on horizon.
8 Thin cirri and cirrous haze over the sky. }
9 . Sky very hazy. »)
10 1:5 Woolly and linear cirri and cirrous haze. y
11 1-3 Thin and loose cirro-cumuli ; cirri in belts.* »)
12 1-7 Cirro-cumuli ; cirri. »
13 1-6 Cirro-cumuli ; cirri. »)
14 1-2 Sky milky ; faint aurora. y
15 0-5 Cirri; faint aurora. »)
16 1.1 Bands of thin cirri to W.; milky cirri. yy)
17 0-7 Id. ; idea
18 0-8 Woolly cirri; cirro-strati; red vapours to E.
19 1.2 Scud ; linear and woolly cirri, tinged red.
20 1:3 Id. ; id. ; parhelia seen at 203°. ©
21 2-7 . Id.; dense cirro-strati.
22 2:3 1-4 Id. ; id.
23 1-3 Id. ; id,
0 0-7 Ee id.
1 36-4 1-3 ; dense homogeneous mass of cirro-strati and haze.
2 -2 | 36-4 2-3 ; id.
3 ‘7 | 36-4 1-5 : i
4 -8 | 37-2 2-1 :
(5 36-7 0-8 :
6 ‘7 | 37-8 1-6
7 38-3 2.2
8 907 39-5 3-7
The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, H.=8,S.=16, W.=24. The
otion of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
* See additional Meteorological Notes after the Hourly Meteorological Observations.
MAG. AND MET. ogs. 1845. 27
166
Gott. BarRo-
Mean METER
Time. || at 32°.
da: hb. in.
121 9 || 29-864
10 847
10 810
12 802
13 || 29-779
14 797
15 822
16 798
V7 797
18 806
19 812
20 847
21 852
22 846
23 835
122 0 811
1 792
2 766
3) 743
4 Tilo
5 692
6 695
VE 719
8 705
9 697
10 692
11 711
12 Tell
23 1 || 29-755
13 || 29-768
14 763
15 776
16 783
17 795
18 804
19 813
20 833
21 847
22 858
23 869
24 0 877
1 875
2 874
3 852
4 848
5 835
6 838
7 838
8 843
9 850
10 843
11 838
12 832
13 || 29-820
14 812
Hourty METEOROLOGICAL OBSERVATIONS, MARrcH 21—24, 1845.
THERMOMETERS,
Dry. | Wet. | Diff.
42-7 | 40-3 | 1-4
43-4 | 41-2 | 2-2
43-6 | 41-4 | 2.2
44-4 |42.2 | 2-2
45-2 {43-1 | 2-1
44-6 | 42-7 | 1-9
44-1 |42-9 | 1-2
45-7 | 44-4 | 1-3
45-6 | 44:0 | 1-6
45-1 | 43-7 |B4
44-8 | 43-9 | 0-9
45-5 |44-3 | 1-2
45-9 | 44-8 | 1-1
47-7 | 46-4 | 1-3
48-2 | 46-7 | 1-5
49-9 |48-1 | 1-8
51-7 | 49-2 | 2-5
53-4 | 50-3 | 3-1
51-8 | 49-4 | 2.4
52-0 | 49-2 | 2-8
50-8 | 48-7 | 2-1
49-6 | 47-3 | 2-3
47-8 |}46-3 | 1-5
48-4 | 46-6 | 1-8
49-6 | 47-9 | 1-7
48-9 | 47-6 | 1-3
48-7 | 47-4 | 1-3
49-2 147-8 | 1-4
53-7 | 46-0 | 7-7
38-7 | 36-7 | 2-0
38:1 | 36-0 | 2-1
37-6 | 35-7 | 1-9
37-7 | 36-0 | 1-7
35:3 | 34-0 | 1-3
36-0 | 34-5 | 1-5
35-3 | 34-0 | 1-3
36-7 | 35-0 | 1-7
41-9 | 38-4 | 3-5
43-8 | 39-7 | 4-1
46-4 | 39-8 |6-6
46-5 | 40-0 | 6-5
48-3 | 40-1 |8-2
50-0 | 41-7 | 8-3
48-2 | 41-2 | 7-0
49-7 | 42-7 | 7-0
48-2 | 41-8 |6-4
47-8 | 41-7 | 6-1
44-0 | 39-7 | 4-3
40-8 | 37-7 | 3-1
39-3 | 36-6 | 2-7
34-4 | 33-0 | 1-4
32-7 | 31-7 | 1-0
31-7 | 31-0 | 0-7
31-9 | 31-3 | 0-6
28-9 | 28-6 |0-3
ila Clouds,
Maximum Se.: C.-s.: Ci.,
force in [Ryom moving
1, |10™, ae
Ibs. lbs. pt. Dinepie spt.
5-3 |4:0 | 18
5-3 |4-6 | 18
4-7 |3-9 | 19 | 20:22: —
5-0 |3-4 | 20
4.8 |4-1 | 19
6-2 |4.6 | 20
4.2 |0-6 | 19
2-6 | 1-5 | 19
2-2 |2-2 | 19
2-2 |1-2 | 19
2-4 /1-2 | 19 120: 24:—
1-0 |0-4 | 19 | 20: —:—
0-8 | 0-4 | 21
0-5 |0-3 | 18 | —: 20:—
0-9 |0-7 | 18
1-3 | 2-0 | 18 1.20 =— -—
2.4 |1-8 | 18 | 19:—:—
2-0 |2-0 | 20 | 290: —:—
3-6 | 3-1 | 20 | 20:—:—
2-8 | 2-5 | 20 | 20: —:—
el 225) | Qi) 20 4 —- —
Se 4 2-4 2 20) =
2: 7oh\ 20rd ADS IO 3e2e :
1-7.11-2 | 19 |
1-8 | 1-4 | 18 |
2-1 /)1-4 | 18 ||
1-3 | 1-0 | 18 | 21: 20:—
0-8 | 1:0 }17 |) 21 2: —
2-9 |1-1 | 22 | —:24:—
325 y i022) |) Dep — ve. 95
0-6 | 0-2 | 26 | —:—:95
0:25\0-05)..250K— 726 - —
0-3 | 0-1 | 20 | —:26:—
0-1 |0-0 | 16 | —: 26:—
0-2 |0-0 | 16 | —:26:—
0-1 | 0-2 | 17
0-1 | 0-2 | 22
0-3 |0-1 | 23
0-3 |0-2 | 93 |
0-7 |0-6 | 28 | 29: —:—
0:670-55) 229) 99. ==
0-6 | 0-2
0-6 | 0-4 | 28 | 28: —:—
0-5 | 0-5 | 28 | 26: —:—
0-9 0-3 | 28 | 26:—:—
Ona O=2 926 a OG ee
(Onis 9| OSs Aip D el ee Ae, =
0-3 | 0-4 | 22
O22 OSs) QO = 3 24
0-1 | 0-0 | 22
0-0 | 0-0 |
0-0 | 0-0
0-1 | 0-0 | 18 |
0-0 |0-0 | 20
0-0 |0-0 | 17
Sky
clouded.
| Cirri; sky greenish near the moon.
Species of Clouds and Meteorological Remarks.
Loose scud ; woolly cirri; cirro-strati.
lids: id.
Id. ; cirro-strati ; cirro-cumuli; cirrous haze,
As before; traces of a halo at 114.
Scud ; loose cirro-strati; shower at 12 30™.
Scud and cirro-strati ; drops of rain.
ater rain?®
ides id.
Id.
Id.
| Smoky scud ; loose cirro-strati; cir.-cum.-str. ;
Homogeneous scud; streaks to E.
Id.
Cirro-stratous scud ; cirro-strati; cirrous mass.
Nearly homogeneous mass of scud.
Scud ; cirro-strati; drops of rain.
ides id.
Id. ; id. ; drops of rain.
Aids id. ; id.
Smoky seud ; cirro-strati; cirrous mass.
Td: de) id.
Loose scud ; homogeneous cirro-strati.
Tid. id.
tdi; id.
Id. ; cirri and cirro-strati.
IGE id.
Id., very low and quickly ; woolly cirri ; cir.-str.
fd. id. ;
Sunday—a.m. Clear; with a few cumuli. p.m. Ove
\ cast with cirri and cumuli.
Woolly cirri; linear cirri; aurora; halo.
Id. ; cirri ; cirro-strati on horizon; aurora,
Cirro-cumulo-strati; cirro-strati; cirri; aurora?
Id.
Id.
Id.
Seud ; cirro-cumulo-strati to E.
Cirro-strati on E. horizon,
Cirro-cumulo-strati to SE.
Id.
Loose cumuli; cumulo-strati.
Id. ; id.
Id.
Scud and loose cumuli.
Cumuli.
Id. ; cirro-strati.
Id.; cumulo-strati; cirro-strati.
Loose cirro-strati; cumulo-strati.
As before ; cirri; red haze on horizon.
Patches of cirro-strati; hazy on horizon.
Id.
Id., radiating from SE. towards NW.
Id., scattered over the sky, chiefly to S. and
As before ; portion of a lunar halo.
Id. ; id.
ii
The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E.= 8,S.=16, W.= 24. The
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. “
~ NW
Aur wW NRF COMNMDEUhWNK OWN =
20
21
|22
091
080
29-084
105
119
135
159
175
210
234
259
293
Hovurty METEOROLOGICAL OBSERVATIONS, Marcu 24—26, 1845..
THERMOMETERS, WIND.
Maximum
Dry. | Wet. | Dit.|| force 12 [From
1b, , 10",
C ic © lbs lbs pt.
30-3 | 30-0 | 0-3 ||0-0 |0-0 | 18
28-6 | 28-7 0:0 |0-0 | 18
27-1 | 27-9 0:0 |0-0 | 20
26:9 | 27-1 0-0 | 0-0 | 20
26-7 | 27-2 | ... ||0-0 | 0-0 | 20
31-0 | 30-6 | 0-4 || 0-0 | 0-0
33-9 | 32-2 | 1-7 ||0-0 | 0-1 | 20
38-6 | 36-6 | 2-0 ||0-2 |0-0 | 30
44-8 | 40-8 | 4-0 || 0-4 |0-3 | 18
47-7 | 43-2 | 4-5 ||2-5 | 1-7 | 18
47-8 | 44-2 |3-6 || 1-5 | 1-1 | 18
48-3 |45-4 | 2.9 || 2-1 | 1-3 | 20
48-5 | 45-2 | 3-3 ||2-0 | 1-3 | 19
46-0 | 45-0 |} 1-0 || 1-5 |0-5 | 20
45-5 | 43-4 | 2-1 || 1-1 |0-6 | 22
44.2 | 42.9 | 1-3 |/0-6 | 0-4 |.19
43-7 |42-1 | 1-6 ||0-9 | 0-3 | 18
42.9 |41-0 |1-9 }}0-5 | 0-1 | 20
41-7 | 39-7 |2-0 || 0-4 | 0-1 | 20
41-2 | 40-0 | 1-2 || 0-2 |0-2 | 21
41-2 |40-1 | 1-1 |}0-5 |0-1 | 22
39-9 | 38-9 | 1-0 ||0-3 | 0-3 | 21
38:3 |37-7 |0-6 || 0-4 | 0-1 | 23
37-3 | 36-0 | 1-3 ||0-2 |0-1 | 26
36-4 | 36-0 | 0-4 || 0-1 |0-1 | 23
35-3 | 34-9 |0-4 ||0-1 |0-0 | 18
34-7 | 34-2 |0-5 || 0-1 |0-1.| 28
34:0 | 33-4 |0-6 || 0-1 |0-J | 22
34-9 | 34-1 |0-8 ||0-6 |0-4 | 22
35-7 | 35-0 |0-7 || 0-3 |0-1 | 23
41-0 | 39-3 |1-7 ||0-6 |0.7 | 19
42-4 | 40-0 | 2-4 ||0-8 |0-6 | 19
45-4 |40-2 |5-2 | 1-5 | 1-8 | 21
46-0 | 39-6 |6-4 | 1-8 | 1-3 | 20
47-6 |41-0 |6-6 || 2:0 | 2-7 | 21
49-2 |41-7 | 7-5 || 1-9 | 1-4 | 22
50-3 | 42-0 |8-3 || 2:3 | 1-7 | 22
49-2 141-5 | 7-7 || 3-3 | 1-6 | 21
46-2 |42-1 |4-1 || 2-4 | 2-6 | 19
45:0 |41-0 | 4-0 || 3-6 | 2-2 | 18
43-1 | 40-4 | 2-7 | 3-6 |1-8 | 18
43-0 |41-0 | 2-0 || 2-4 | 3-1 19
42.8 |}41-2 |1-6 |}4-:0 |4-3 | 18
44-5 | 42-8 | 1-7 || 5-2 14.6 | 19
43-7 | 42-5 |1-2 | 4-8 |1-6 | 21
45-7 |42-5 |3-2 || 1-8 | 1-7 | 21
44-7 |42-1 |2-6 ||/6-3 11-4 | 22
44-4 | 40-4 |4-0 || 3-3 13-6 | 24
43-4 |40-4 | 3-0 || 2-9 | 2-4 | 24
43-2 |39-6 |3-6 || 5-2 | 3-6 | 24
44-0 |39-7 |4-3 ||3-7 |3-5 | 24
44-0 | 40-0 | 4-0 | 4-3 |3-0 | 25
44-4 |40-0 |4-4 |} 4-2 |2-6 | 24
45-2 |40-8 | 4-4 || 3-1 |2-3 | 24
46-9 |41-8 | 5-1 || 4-7 | 3-2 | 25
47-8 |43-0 |4-8 ||4-6 13-9 | 26
Clouds,
Se. : C.-s.: Ci.,
moving
from
pt. pt. pt.
: 24:
pe
24:
167
Sky
clouded. Species of Clouds and Meteorological Remarks.
0—10.
4:0 || Woolly cir. and cir.-str., chiefly to S.; lunar halo. }
7:0 || Woolly and curled cir. over the sky ; part of a halo. }-
4-0 Id. y
2-5 Id.; lying NNW. toSSE.; corona. )
4-5 Id.; lying NW. to SE. ;. pectinated cir.
8-5 Id.; cir.-str. ; part of a halo. ©
9-0 || Woolly and linear cirri; cirro-strati; haze. ©
6-5 || Loose cirro-strati; cirri; haze. (0)
9:0 Id. ; cirro-cumulo-strati ; haze.
9.9 Ieelse id. ; id.
10-0 || Scud ; cirro-strati; cirri.
9.5 Id. ; cirro-cumulo-strati ; cirri. (9)
10-0 Id.; cumuli; cirro-strati.
10-0 Id.; Scotch mist.
10-0 || Id.; cirrous mass.
9-9 Id.; dense cirro-strati; patch of sky to N.
9-7 || Cir.-str. scud ; cir.-cum.-str.; red to E.; cum.-str. to N.
9-7 || Cirro-stratous scud; cirro-strati; cirri.
9-8 || Sky to NW.; lightish there.
10-0 || Overcast.
10-0 Id.
9.0 Id.; stars dim; lunar halo. }
9-0 || Clouds broken ; stars dim; lunar halo. &
3-0 || Loose cirro-strati. »)
9-9 Td.
9-9 Id.
10-0 || Scud. %
1-5 || Cirro-cumulo-strati; cirro-strati to E.
1:5 || Scud ; cirro-strati and cirrous haze to E. ©
3:5 Id.; a few cirro-strati to E. 0)
8:0 | Cirro-stratous scud.
5:0 |] Scud; loose cumuli. ro)
6:0 || Detached cumuli. 0)
1-5 Id. (0)
9-0 || Scud and loose cumuli.
3-5 Id. (0)
3-0 Id.; thick woo. cir., spreading out from NW.©
9:0 Id.; cirri and sheets of cirro-strati,
9-8 || Scud ; thick cirrous haze ; cirro-strati; halo.
10-0 | Id.; id.
10-0 Id. ; id.
10-0 || Id.; rain!
10-0 Id.; dark; rain}
4-0 || Loose scud.
0:5 || Cirro-stratous scud (?) on N. and SE. horizon.*
10-0 || Scud; rain®?
5-0 Id.; cirro-stratous scud to N ; aurora, 2*
1:0 | Id.; sky milky ; id. ? »)
0-8 | Id. toS.; sky milky. »)
0:5 Id. ; id. »)
0:5 Id. »)
0-8 || Id.; streaks of cirri to E. »))
2-0 || Id.; woolly cirri. 0)
2-0 Id. ; id. ; haze. (0)
4-0 Id.; mottled and woolly cirri. (=)
5:0 || Id.; id. (0)
The
he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.= 8, S.= 16, W. = 24.
tions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner,
* See additional Meteorological Notes after the Hourly Meteorological Observations.
168 Hourty METEOROLOGICAL OBSERVATIONS, Marcu 26—29, 1845.
|
5
5
oO
Es
(sy)
1S)
ro}
bo bo
IO >
i}
bo
oo
_—
iN
2
(ee)
aN
~vT
On
_—
eo
OOMOIAMNAWNHH OW
_ oo
a) wo
Ro) on
on nN
S Ye)
or _—
eS i
Co or
— NI
bo wo
e AN
28
924 || 51-7 | 42-3 | 9.4
951 || 50-1 | 40-7 | 9-4
THERMOMETERS,
Dry. | Wet. | Diff.
as
=
o
n
Se rere
Oompadmneor!?
wWwNrFOoroOrrrerhy NW bd
OWwWNeaAenwnawned Haar
Maximum
force in
19=.
Op MOomH wor
oo
ao
March 27410". The pressure of the wind would have been estimated at upwards of 7 lbs., in some cases ; the anemometer has not she
4 lbs.; the index is frequently tugged back 2 lbs. in strong gusts, and the gust is over before it can mark. This i is evidently due to the ap
WIND.
From
Clouds,
Se.: C.-s: Ci.|| Sky
moving clouded.
from
pt. pt. pt. 0—10.
2G tre
24:—:—|| 7-5
24:—:26|| 7-0
24 :—:— 9.9
24:—:—|| 10-0
21:—:—|| 10-0
23:—:—|| 10-0
24 :—:—]} 10-0
24:—:—|| 10.0
10-0
10-0
10-0
9-5
10-0
10-0
9-9
22:—:—|| 7-0
9-8
24:—:—|| 9-7
24 :—:— 8-0
24:25 :— 3-0
23 : 25 :— 3-0
24 :—:— 4-0
24:—:—|| 7-0
24 :25:— 8-0
25:—:— 6-0
25:—:— 7-0
25 :—:— 4:5
26:28 :— 6-0
25: 26:— 4-0
27:—:—|| 40
26 : 26:— 2-0
2-0
1:0
0-8
0.7
1-0
1-5
2-0
0-5
0-1
0-1
0-1
0-2
0-3
0-2
0-3
30 :—:— 0-5
29 :—:— 2-0
28 :—:—]|| 6-0
3-0
29:—:— 3-5
29 4.0
29 2-0
29:—:—| 2-5
2-0
Species of Clouds and Meteorological Remarks,
Scud and loose cumuli; cirri.
lids 5 id.; cirro-strati,
Id. ; woolly cirri; cirro-strati.
Id.
Id. ; cirrous mass.
Id. ; 1d 5 drops of rain,
Scud; cirrous mass; solar halo.
Id.; mass of cirro-strati.
Electric-like scud ; cirro-strati ; showers.
Seud ; cirrous mass.
Ids; adv; drops of rain.
Id. ; id. ; id.
Id. ; id. ; lightest drizzle.
Idi ade id.
Scud ; cirrous mass; lightest drizzle.
Id. ; dy: a shower at 138 30™.
Id.; cirro-cumulo-strati; shower? at 145 30™.
Tle id.
Scud and loose cumuli.
Thick scud and loose cumuli; sky slightly milky. —
Scud ; loose cum.; sky slightly milky ; showers a
Id.; woolly cirro-strati; sky slightly milky.
Id.; id. ; id.
Id.; part of a rainbow.
Id.; loose cumuli.
Id.; cirrous haze to E.
Id.; cirro-strati; drops of rain.
Scud and loose cumuli ; cirro-strati.
Scud ; loose cumuli; cirro-strati.
itl idee id.
Id. ; id. ; nimbi; cirro-strati to N.
Id; idee sheets of cirro-strati.
Masses of scud ; cirro-strati and cirrous haze to
Cirro-strati to N., and patches scattered about.
Id.
GI faint auroral light.
Nish id.
Cirro-strati on N. and E. horizon.
Clouds to E. and N.
Id. on E. horizon.
Thin clouds on E. horizon.
Id.
Cirro-strati on E. horizon.
Bank of cirro-strati on E. horizon.
Scud above Cheviot; patches of cir.-str. on E. hor.
Nearly as before.
Id. ; thin streaks of cirri to E.
Patches of scud and loose cum.; streaks of cir. to!
Detached cumuli.
Cumuli; milky-looking near the sun.*
Id.
ture in the vane being presented obliquely to the wind, which creates a vacuum in the tube.
March 284 04, ‘The clouds seen blown into thin vapour or rain.
* See additional Meteorological Notes after the Hourly Meteorological Observations.
Hourty METEOROLOGICAL OBSERVATIONS, Marcu 29—Aprit 1, 1845. 169
THERMOMETERS. WIND.
., Se.:0-0:Ci,) SI
; c.: C.-s.: Ci. ky
at 32°, ea moving : clouded. Species of Clouds and Meteorological Remarks.
a © . . i .
Krom fi
.|10™, Pass
in. ls pt. pt. pt. I
29-972 . : . Of : 29 : 29: — : Cirro-stratous scud.
29-988 : : : . : 30 . Td. ; cumuli to N.
30-025 : : . . . : Id.
032 . . ‘ . ’ | . Id.
036 : . . . . iN?/ . Streaks of cirri with aurora to N.; sky milky.
30-042 5 : ‘ . . 177 Cirri radiating from NW by N.; faint aurora; sky hazy and milky.
02 29-823
43 521
3 || 29-540 . : : . Cirro-strati.
608 ( ; ; , : : Td.
653 . : : . : : . Stars dim,
678 . : : : . . Cirro-strati to E.
719 : 3.7, | Be ; : F Id.
762 : . . : . : GEE scud to SE. and §.; thin cirri to E.
810 . . - POE . Cirro-stratous scud on Cheviot.
854 : ‘6 | 2- : . 9 : : leks
883 j
Sunday—Scud and mass of cirro-strati; rain throughout the day.
on E. horizon.
thin cirri to N.
Cirro-strati and cirri on E. horizon.
919 Seud and haze.
940 . : : Scud ; cirro-strati ; haze.
938 . . : : . Id. ; ada id.
938 : : : 3 :—?: . Id.; cirro-strati with mottled edges; haze.
945 : Woolly cirri; cirro-strati; patch of scud.
953 : Wo. and mot. cir.; lin. and curl. cir. ; cum.-str.*
957 ; : j : : —:—:26 : Id id.
962 . Scud ; loose cumuli; cumulo-strati; cir.-str.; cirri*
967 : : : . Woolly cirri; cirro-cumuli; cirro-strati; cumuli to E.
972 . . : . : : : : dks id. ; 7 Erde
975 . : 2 . ; : lel € cirro-strati and cirrous haze.
977 . Cirro-strati and cirri.
978 stars dim.
982 round horizon.
id.
Cirro-strati and cirri round horizon.
Id., principally to E.
Td stars dim.
Id. ; id.
Id. }
Cirro-cumulo-strati ; cirri; cirro-strati.
Woolly cirri; cir.-str. ; cir.-cum.; cir.-haze ; parhelia.*
Woolly cirri; cir.-str.; cir.-cum.5 cir, haze; thick linear cirri to E.
like aden 161, id. (=)
Cir.-str. in sheets, woolly, mot., and lin, ; patches of cir.-str. scud. @
Cirro-cumuli ; cirro-strati; woolly and linear cirri. ©}
Cirro-cumulo-strati; cirro-strati; cirri.
ders TOBE id. (2)
Takes id. ; id.
Dense cirro-strati, becoming rather homogeneous.
Cirro-strati; cirro-cumulo-strati and cirri.
lich, 2 id. id.
: id. id.
id.
id.
u
4
5
6
7
8
9
0
1
2
3
0
1
2
3
4
5
6
7
8
9
10
}
OOOO0O000000rrY
DeowN=SOCMIAMHW
es clouds broken.
8 | 38-8 | 2. : : . Cirrous clouds.
39-6 | 38-3 | 1- . : . Id.
DH ODDIAATIA w
March 294 125 25m, Barometer 30:043.
March 314 3h4h, Portion of a halo.
April 14. Swallows said to have been seen at Kelso.
* See additional Meteorological Notes after the Hourly Meteorological Observations.
MAG. AND MET. ogs. 1845. 2uU
Hovurty METEOROLOGICAL OBSERVATIONS, APRIL 1—3, 1845.
ry
‘THERMOMETERS. WIND. , -
Gott. || Baro- ~ — ec eae sky -¥
Mean ere 8g ete spat -_ moving ‘Teepaaae | Species of Clouds and Meteorological to
1h, )10m, oC
dn he in ° ° ° i} ips. | Ibs. | pt. |] pt. pt. pt. |} 0-10. Fe
1 13 || 29.924 || 38-4 | 37-4 | 1-0] 0-0 | 0-0 2-0 || Cirrous clouds. re
14 918 || 34-4 | 34-0 | 0-4 |/0-0 | 0-0 0-0 || Hazy near horizon. 4
15 909 || 33-0 | 32-6 | 0-4|/0-1 | 0-0 | 18 1-0 || Cirri radiating from ESE. Be
16 901 || 31-9 | 31-2 | 0-7|/0-0 |0-0 | 16 1-0 Id.
17 899 || 29-5 | 29.3 | 0-2|/0-0 |0-0 | 18 1-5 Id.'; vapours ae pee to E.
18 891 || 29.4 | 29.4 ..- 10-1 | 0-0 | 18 7:0 Id., coloured ; of
19 897 || 34-2 | 32-5 | 1-7|/0-1 | 0-0 7-5 || Woolly and ‘linear cirri.
20 899 || 35-0 | 33-0 | 2-:0|/10-0 }0-0 | 7 10-0 || Cirrous mass; dense fog ; object invisible at 150y.
21 900 || 36-0 | 35-6 | 0-4/0-0 |0-0 | 4 10-0 || Damp fog; objects invisible at 140 yards.
22 907 || 39-5 | 39-0 | 0-5 || 0-0 | 0-1 7 10-0 lick objects invisible at 170 yards. .
23 903 || 42-5 | 41-4 | 1-1|/0-1 | 0-1 7 || —:—:24] 6-0 || Woolly cirri; cirro-strati; fog clearing off. aa
2 0 892 || 47-9 | 44.9 | 3-0||0-2 | 0-1 4 6-0 ides id., motion imperceptible,
1 893 || 53-1 | 45.7 | 7-4110-2 | 0-2 il 8-0 lighe cirrous haze.
2 880 || 56-7 | 49.3 | 7-4|/0-1 |0-0 | 15 8-0 lighs id.
3 864 || 61-0 | 51-0 {10-0 || 0-7 | 0-6 | 16 || —:—:20] 8-0 Id. ; id.
4 862 | 61-5 | 50-2 11:3 ||0-8 | 0-7 | 14 || —:—:22]| 7-5 Id. ; id.
5 857 | 60-3 | 49.3 |11-0]|0-6 |0-3 | 13 || —:—:22] 8-5 IGE id.
6 860 || 55-6 | 47-4 | 8-2110-7 | 0-4 | 16 | —:—: 24 8-0 || Wool. and lin. cir., becoming thick cir.-str. to N B.
7h 862 || 50-2 | 44.3 | 5-9]/0-8 |0-5 | 13 | —:—:25] 8-5 Tass id.* ;
8 869 || 45-9 | 41-9 | 4-0] 0-3 | 0-1 8 8-0 Id. ; id. ; very a
9|| 887 ||41-8 | 40-4 | 1-4] 0-1 |0-0] 6 2-0 || Cirri radiating from NW. ; sky milky. |
10 886 |} 40-0 | 38-8 | 1-2|/0-1 |0-0 | 3 1-0 Id. ; hazy near horizon.
11 887 || 35-6 | 35-1 | 0-5|/0-0 |0-0 | 8 0-0 || Clouds or haze on horizon ?
12 890 || 33-7 | 33-6 | 0-1 || 0-0 | 0-0 0-0 Id.
13 | 29-884 || 31-1 |31-0 | 0-1|]0-0 |0-0 | 16 | 0-0 || Clouds or haze on horizon ?
14 875 || 29-6 | 29.4 | 0-2|| 0-0 | 0-0 0-0 || Thin fog.
1 863 || 28-4 | 28.4 00 | 0-0 0-0 Id.
16 853 || 28-4 | ... | ... {10-0 {0-0 | 18 | 0-0? || Fog rather dense.
17 854 || 28-3 | 28-6 | ---|/0-0 |0-0 | 26 | 0-0?2|| Fog; objects invisible at 300 yards.
18 857 || 30-2 | 30-1 | 0-1 || 0-0 | 0-0 | 10-0 |) Id.; id. 200 yards. ;
19 854 || 31-9 | 31-5 | 0-4|/0-1 |0-0 | 4 | 10-0 || Id.; id. 100 yards ; hoar-frost. Hl
20 854 || 31-6 | 31-3 | 0-3)/0-1 |0-0 | 4 | 10-0 || Id.; id. 120 yards. E
21 832 || 33-0 | 32-3 | 0-7|/0-1 |0-0 | 8 | 10-0 || Id.; id. 150 yards. }
22 830 | 34-5 | 34-3 | 0-2)0-1 | 0-1 | 23 | 10-0 || Id. on the ground, objects invisible at 250 yards.
23 824 || 38-2 | 37-5 | 0-7||0-0 | 0-0 | 24 10-0 || Id.; objects invisible at 1 mile. &
3 0) 812 || 40-7 | 39.3 | 1-4|/0-1 |0-1 | 12 | 27:—:— 5-0 || Fog-clouds ; fog at 5 miles; clearing.
1 791 || 43-4 | 41-4 | 2.0]0-1 |0-0 | 7 | 1-0 || Very hazy on horizon. ri
2 758 ||49-9 | 45-7 | 4-2|/0-0 |0-0 | 4 | 0-5 Id. be
3 742 || 55-3 | 48-3 | 7-0||0-1 | 0-1 if 0-5 |) Cirrous clouds and haze on horizon. 7
4 720 || 59-2 |49-5 | 9-7|/0-1 | 0-0 4 || 0-5 || Brownish hazy clouds to E.
5 709 || 60-3 | 49-8 |10-5||0-2 |0-2 | 8 || 0-5 Id.
6 703 || 57-4 |50-1 | 7-3]/0-5 |0-5 | 4 2-0 || Thick haze on horizon ; cir.-str. and cirri among it
if 709 || 48-4 | 45-3 | 3-1]/0-5 | 0-2 6 2-5 || Cirro-strati and thick hous on horizon.
8 720 || 43-5 | 41-9 | 1-6] 0-2 | 0-1 4 || 2-5 || As before; the sun set at 7 16™, very red and large like.
9 726 | 40-0 | 39-5 | 0-5] 0-0 /0-0 | 4 | 1-0 | Very hazy ; slight fog.
10 728 || 35-7 | 35-6 | 0-1)/0-1 |0-0 | 12 || 1:0 | Id.
li 739 || 33-2 | 33-0 | 0-2]/0-0 | 0-0 i 1-0 Id.
12 755 || 34-0 | 33-8 | 0-21|/0-1 |0-0 4 | 10-0 || Dense fog; no stars visible.
13 || 29-760 || 34-4 | 34-6 | 0-1]] 0-0 | 0-0 10-0 || Dense fog; no stars visible.
14 784 || 33-6 | 33-3 | 0-3/1 0-5 | 0-4 4 | 10-0 ielae ‘dark.
15 790 || 34-9 | 34-7 | 0-2/0-4 [0-3 | 6 10-0 td; id.
16 793 || 35-2 | 35-0 | 0-2|/0-3 | 0-1 2 10-0 Id.
17 795 || 36-2 | 36-0 | 0-2]0-1 |0-1 | 4 | 10-0 Id.
18 || 799 | 35-2 | 34.8 | 0-4//0-2 |0-1 | 4) | 10-0 | Id.; objects invisible at 1} mile.
19 811 || 35-6 | 35-1 | 0-5)/0-1 |0-2 | 0 | 10-0 || Scotch mist at 2 miles.
20'| 833 || 36-1 | 35-8 | 0-3]10-5 10-1 | 31 || 10-0 Id.
he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, S.= 16, W.= 24. Th
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
* See additional Meteorological Notes after the Howrly Meteorological Observations. a
=
HourLy METEOROLOGICAL OBSERVATIONS, APRIL 3—7, 1845. 171
THERMOMETERS. WIND.
Clouds,
; Se. :C.-s.: Ci.,|/ Sk 4 pes 7
“ec ag oe i oat m oving ae ee Species of Clouds and Meteorological Remarks.
1, (10, Rach
h. e) 9 ° lbs. | Ibs. | pt. || pt. pt pt 0—10
1 38-0 | 37-4 | 0-6] 0-1 |0-0 | 20 || 4:—:—J] 10-0 | Misty scud; slight mist (indistinct at 3 miles.)
wy 40-0 | 39-2 | 0-8} 0-0 | 0-0 Qi) 4o— ssi 100) iol: id.
i3 40-8 |39-6 | 1-2||0-3 |0-1 | 6 10-0 Id. ; id.
0 42-8 |40-6 | 2-2]|0-2 |0-1 6 5:—:—|| 10-0 Id. ; rather homogeneous ; fog on horizon.
i 42-5 | 40-5 | 2-0] 0-2 |0-1 6 10-0 ieee id. ; id.
2 42-6 |41-1 | 1-5 || 0-4 | 0-2 4 10-0 el 8 id; id.
3 43-1 | 41-3 | 1-8] 0-3 | 0-2 4 10-0 Id. ; nl & id.
4 43-6 | 42-0 | 1-6||0.2 | 0-1 5 10-0 Td. ; id. ; id
5 43-3 |41-6 | 1-7]/0-3 | 0-1 2 || 6:—:—| 10.0 Td. ; id. ; id
6 42-3 |40-5 | 1-8|/0-2 | 0-1 5 10-0 lich id. ; id
7 41-4 | 39-S | 1-6}|0-3 | 0-2 9 10-0 Ife 3 haze on horizon.
8 40-8 | 39-4 | 1-4]/0-2 |0-2 7 10-0 Id
9 40-2 | 39-1 | 1-1}/0-2 |0-1 7 10-0 Id
0 40-0 |38-9 | 1-1]|0-1 | 0-1 4 10-0 || Dark
1 39-8 | 38-9 | 0-9}/0-1 | 0-0 9 10-0 Id
12 39-1 | 38-4 | 0-71/0-1 | 0-1 4 10-0 Id
13 39-0 | 38-2 | 0-8]|0-0 | 0-0 6 10-0 || Dark
4 38-7 | 38-0 | 0-7|/0-2 |0-1 | 16 10-0 Td.
15 38-4 | 37-7 | 0-7||0-0 |0-0 | 16 10-0 Id. ; lightest rain.
6 38-0 | 37-2 | 0-8]/0-0 |0-0 | 16 10-0 Id.
17 38-0 |37-0 | 1-0]/0-1 |0-0 | 10 10-0 || Lighter.
8 37-9 | 36-9 | 1-0||0-0 |0-0 | 13 || 14:—:—|| 10-0 || Nearly homogeneous scud.
9 37-6 | 36-6 | 1-0}|0-0 |0-1 | 13 10-0 Id,
0 38-1 | 37-0 | 1-1]/0-1 |0-0 | 14 10-0 Id
Hk 38:0 | 36-9 | 1-1] 0-1 | 0-0 4 10-0 Id
12 37-9 | 36-6 | 1-3]/0-1 | 0-0 4 10-0 Id
13 40-9 | 39-0 | 1-9}|0-2 |0-1 | 12 10-0 Id.
0 41-6 | 39-0 | 2-6|| 0-2 | 0-2 6 |—:14:— 6-0 || Cirro-stratous scud ; cirro-strati; cirrous haze. oe}
| A 45-7 |42-3 | 3-4]/0-2 |0-1 | 28 || —:12:—J 4-0 || Cirro-cumulous scud ; woolly cirri; haze. ©
2 47-8 |43-7 | 4-1]|0-1 |0-0 | 12 3-0 || Woolly cirri; cirro-strati; haze. oO}
: 3 50-5 |45-2 | 5-31/0-1 |0-0 6 7-0 || Loose cirri; cir.-str.; mottled cirri; small cir.-cum, ©|
4 51-6 | 45-6 6-0 || 0:5 |0-5 7 7-5 As before ; cir.-cum. larger; linear cirri radiating from NW. oO}
| 50-7 |45-0 | 5-7|/0-4 [0-2 | 2 3-0 Td. |
48-0 | 42:9 | 5-1] 0-4 |0-3 Palit rae 0) 2-5 || Woolly and linear cirri; hazy on horizon. 0}
17 44.0 | 40-7 | 3.3]/0-4 10-3 | 2 2.0 || Mottled, linear, and tuft cirri; id.* fo}
| 41-1 | 38-9 | 2-21/0-3 |0-0] 3 1-5 || Cirri and haze; purple to W. f
| 36-9 | 36-0 | 0-9}/0-1 | 0-0 3 0-5 || Haze on horizon.
33-0 | 32-7 | 0-3]/0-1 |0-0 | 20 0:0 || Clear.
| 31:5 |31-1 | 0-4]/0-1 |0-0 | 20 0-0 Id.
| 30-3 | 30-2 | 0-1] 0-0 | 0-0 0-0 Id.
51-0 |42-2 | 8-8 || 0-2 | 0-0 0-0 || Sunday—Beautiful day ; cloudless.
| 57-3 |44-5 |12-8]] -.. | -- .-.... || Light wind sprung up about 5%.
| 39-4 | 39-1 | 0-3)/0-7 | 0-1 1 10-0 || Dark; lightest rain.
| 39-8 | 39-4 | 0-4||0-0 | 0-0 10-0 Id. ; id.
40-3 | 39-9 | 0-4 || 0-0 | 0-0 10-0 Icl2 id.
40-7 | 40-2 | 0-5 || 0-1 |0-0 10-0 Id. ; id.
41-0 | 40-4 | 0-6|| 0-0 |0-0 | 17 10-0 Id.
40-9 | 40-4 | 0-5]/0-0 |0-0 | 20 | —: 6:—J]} 10-0 || Cirro-stratous scud; cirrous mass.
41-6 |40-7 | 0-9|/0-1 |0-0 | 22 10-0 || Dense mass of thick scud and cirro-strati.
43-6 | 42-4 | 1-2]/0-0 |0-0 | 24 | —: 4:—|| 9-9 || Cirro-stratous seud.
46-0 | 44-1 | 1-9]/0-2 |0-1 | 18 ||16: 9:—|| 9-0 || Hazy scud; loose cirri-cumuli; very hazy. )
49-7 |46-6 | 3-1}/0-1 |0-0 | 14 | 10:—:—|| 9-8 || Seud; loose woolly cirro-cumulo-strati. t
51-2 |47-2 | 4-01 0-1 |0-0 | 20 10:0 || Hazy scud and loose cirro-strati.
| 54-1 | 49-3 | 4-8]/0-1 |0-0 | 16 || —: 16: — 9-8 || Cirro-stratous scud and cirro-cumulo-strati.
51-9 |46-8 | 5-1]'0-3 | 0-1 6 |16:—-:—|| 3-0 || Loose scud ; slight haze. ©
The direction of the wind is indicated by the number of the point of the compass, reckoning Weise Oy S's SSS UG, Wie SS ines
Ptions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
April 5164. Three swallows seen near the Observatory.
* See additional Meteorological Notes after the Hourly Meteorological Observations.
Gott BanRo-
Mean METER
Time at 32°
ume in.
7 2) 29-626
3 590
4 553
5 523
6 508
7; 493
8 476
9 465
10 443
11 413
12 392
13 || 29-359
14 324
15 288
16 270
it7/ 236
18 220
19 202
20 175
91 163
92 144
23 129
f=) (0) 122
1 107
2 077
3 062
4 043
5 031
6 041
lh 033
8 027
9 028
10 019
11 009
12 005
13 || 29-000
14 || 28-984
15 964
16 944
17 929
18 927
19 927
20 924
21 918
22 906
2B} 900
9 0 897
1 889
2 877
3 861
4 860
5 861
6 868
i 879
8 894
9 901
HovurLy METEOROLOGICAL OBSERVATIONS, APRIL 7—9, 1845.
THERMOMETERS.
Dry. | Wet. | Diff.
1-6
40-5 | 39-4 | 1-1
39-4 | 38-3 | 1-1
38-8 | 37-6 | 1-2
40-3 | 38-4 | 1-9
39-0 | 37-0 | 2-0
40-1 | 37-6 | 2-5
40-6 | 37-9 | 2-7
41-6 | 38-9 | 2-7
42-0 | 40-4 | 1-6
46:3 | 44-0 | 2.3
40-3 | 38-1 | 2-2
38-4 | 37-0 | 1-4
35-9 | 34-6 | 1-3
35-2 | 34-1 | 1-1
35:0 | 34-2 | 0-8
32-8 | 32-1 | 0-7
32:0 | 31-6 | 0-4
32-4 | 31-8 | 0-6
32-1 | 31-3 |0-8
29:8 | 29-4 | 0.4
28-6 | 28-5 | 0-1
31-6 | 31-2 | 0-4
34:5 | 34-0 |0-5
38-0 | 36-7 | 1-3
40-8 | 39.2 | 1-6
44-7 |41-7 | 3-0
46-6 | 40-9 | 5-7
47-7 | 41-3 | 6-4
48-4 | 42-0 | 6-4
49-2 | 43-2 | 6-0
48-3 | 42-0 |6-3
46-8 | 40-6 |6-2
45-3 | 39-7 | 5-6
43-7 | 38-4 | 5-3
40-6 | 38-0 | 2-6
39-0 | 36-9 | 2-1
WIND.
Maximum
force in |Prom
14, ,10™,
Ibs. | Ibs. pt.
0-2 |0-1 4
0-4 | 0-3 6
0-5 | 0-5 4
1-0 | 1-1 | 14
153) 1-3 9S
0:7 |0-3 | 15
0:3 | 0-4 | 17
0-5 |0-4 | 17
0-5 |0-1 | 17
O00) 9) kz
0-2 | 0-0
0-4 |0-3 | 18
0-2 | 0-0
0-8 |0-4 | 15
0-3 |0-2 | 18
0-6 | 0-3 | 18
0-5 |0-2 | 18
0-6 |0-4 | 17
0-5 |0-6 | 17
1:0 |0-5 | 18
0-9 |0-6 | 18
1-1 |0-7 | 21
0-8 |0-4 | 20
0-7 | 0-4 | 24
0-7 \O-7 | 20
1-2 |0-3 | 18
1-1 |1-2 | 18
2-9 |}1-8 | 21
2-2 |1-6 | 19
1:0 |0-5 | 21
0-5 |0-3 | 20
0-9 |0-4 | 18
0-3 | 0-0
0-0 | 0-0 | 22
0-4 |0-1 | 21
0-3 |0-0 | 10
0-2 |0-0 | 28
0-2 |0-1 | 18
0-1 | 0-1 | 20
0:0 |0-0 | 20
0-1 |0-0 | 16
0-2 | 0-0 8
0-0 | 0-0 4
0-0 |0-0 | 16
OE Oats tia
O50) V5
0-1 | 0-1 2
0-1 | 0-1 10
0-2 |0-2 6
0-1 | 0-3 8
0:8 }O:3e0 7
0-6 | 0-7
0-5 | 0-2 7
0-4 | 0-2 6
0-4 | 0-2 4
0-2 '0-0 2
Clouds,
Se. : C.-s.: Ci.,
moving
from
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Loose cumuli and scud; hazy.
lice very hazy on horizon.
Id: very hazy.
lige ae id. [at iy ni
ids); dense haze; objects iny
As before ; sun blood-red.
Haze on horizon, &c.; as before.
Id.
Id.
Hazy on horizon.
Thin cirri; stars dim.
Thin cirri; stars dim.
Td; radiating from S.
lds sky in zenith.
Cirrous clouds.
Cirro-strati; cirri.
Loose cirro-strati; rain”?
Scud ; woolly cirri.
Id.; cirro-cumulo-strati.
Id.; loose cirro-strati.
Id.; cirrous mass; cirro-strati; cumuli.
id. ; id. ; afi IR id.
Cirro-stratous sie ; cirrous mass. .
Seud ; cirrous mass ; shower since 02,
Seud and loose cumuli ; cirro-strati; cirri; shower
dos id. ; nimbi.
Seud ; cumuli to N.; nimbi.
abe Gh id.
Cirro-stratous scud; nimbi; cirri; cirro-strati.*
Tide id.; id.; piles of cumuli,
tds cirro-cumuli. ¢
hd: cirro-strati.
Streaks of cirro-strati; very clear.*
Patches of cirro-strati to E. and W.
Patches of cirro-strati.
Clear.
Patches of cloud; stars rather dim.
Clear.
Id.; cirro-strati to NE.
Cirro-strati and haze to E. ,
Loose seud to S. ; cirro-strati and cirrous haze to E
Seud ; cumuli; cirro-strati; cirri on horizon.
As before ; hazy to E.
Cirro-cumulo-strati; cir.-str. to S.; haze on E. hor.
Ide; cumuli to N.
Loose cumuli; cumuli; cirro-strati; haze.
Cumuli; cirri. :
Id.; cumulo-strati ; cirri ; clouds moving variou us
Blectric-looking cumuli and cumulo-strati.
Id.
As before ; clouds scarcely moving ; haze on horizon
Cumuli; cirro-strati; haze. '
Cum.-str. and cir.-str. to S.; brownish haze to W.
Cirro-strati and haze round horizon. :
Cirro-strati on horizon, chiefly to NE.
Scud.
é
The direction of the wind is indicated by the number of the set of the compass, reckoning N. = 0, E.= 8, 8.= 16, W. = 24.
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
April 74 34,
April 84 18h 83m,
The clouds seem to be acted on by various currents.
The sun just above the horizon.
* See additional Meteorological Notes after the Hourly Meteorological Observations. be
Hovurty METEOROLOGICAL OBSERVATIONS, APRIL 9—11, 1845. 173
THERMOMETERS. WIND.
rae ma Sk
7 = we moe pee Species of Clouds and Meteorological Remarks.
ry. et. iff,
Om:
lbs. | lbs. 6 é le
0-3 10- L . Seud.
0:3 |0- : Id.; lightest rain.
Id.
m= bo
oo
Seud ; rain”?
Id.; rain?
Id.; rain?
Id.
Id.
Id.; cirro-strati; cirrous mass.
Scud and dense cir.-str. ; nearly homogeneous ; rain”?
liebe Te be id.
Id. ; rain”?
Scud ; loose cumuli; cirro-strati; rain”?
des id. ; shower of hail at 225 30™,
Thick seud and loose cumuli; shower!
de; rain”?
Rain’, slightly mixed with sleet.
Scud ; loose cumuli; cirro-strati; cirro-cumuli.
Tdes id.
; showers around ; milky haze above.
; id. ; id.
; dense cirrous mass.
ae id. ; rain!
3
3
3
hoHwonmnoonmnnAs yA
RPE WNP ee NE Nee
LH PRO m= bo
wwwwwezr
id.
clouds broken.
thin cirri.
As before.
As before.
Id.
Id.; sky in zenith.
Id.
Seud ; cirro-cumuli; cirri ; shower”?
Id.; drops of rain.
Id.; rain?; 195 10™, sleet; 20™, parhelion.
Id.; cirro-cumulo-strati; cir.-str.; frequent showers.
Loose scud and nimbi; showers around.
Id. ; cir.-cum.-str. ; nimbi; cirri; rain?
id. ; TMS yl
loose cumuli; nimbi. @
cumuli to N.; id.
id, ; cirro-strati.
Scud and loose cumuli; cumulo-strati; cirro-strati.
Nig cirro-strati.
ich s id.
Scud ; cirro-stratous scud.
Cirro-stratous scud. ra)
KP COOONOUBRWNHYK CO
_
12
bi
a
mt
Do
Soot
PEIN OE ts CO ae IN
KOMOWNAINONONAONKH LE
| | WONNWNMHNWN WNW WW WW Wow
»)
) [NE. )
broad strips of thin cirri lying SW. and
PN WRNONHE NOE NF NNR SE Be BPO BEE RF OF NRF REDO NNW WE WW Wb
bo
»
Haze or thin cirro-strati to N.
Cirro-strati to NE.
Cirro-strati.
Cirro-stratous scud.
The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, H.= 8,S.= 16, W.= 24. The
stion of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
MAG, AND MET. oss. 1845. 2~
174
Gott. BaRro-
Mean || METER
Time at 32°.
id.) 7h in.
1117 || 29-493
18 486
19 495
20 492
PN 481
22 476
23 468
1250 461
1 451
2 437
3 422
4 418
5 424
6 433
vf 436
8 441
9 446
10 445
11 445
12 443
13 O | 29-134
8 || 28-924
if 884
13 || 28-914
14 920
15 946
16 962
17 || 28-976
18 || 29-000
19 017
20 037
21 056
22 079
23 128
14 O 171
1 208
Ded 238
3 268
4 304
5 339
6 372
‘l 416
8 467
9 498
10 528
11 558
12 598
13 || 29-624
14 548
15 695
16 734
7 785
18 833
19 870
20 |} 904
HovurLy METEOROLOGICAL OBSERVATIONS, APRIL 11—14, 1845.
Dry. | Wet.
42-0 | 40-5
43-5 | 46-4
43-9 | 40-4
43-3 | 39.0
43-2 | 39-5
40-9 | 37-7
41-3 | 37-7
41-8 | 38.2
40-6 | 38-6
39-9 | 38.7
40-6 | 39-0
41-9 | 39-6
42-3 | 39-6
42-2 | 39-5
42.7 | 39-8
42-3 | 39-5
42-6 | 40-0
43-4 | 40-4
THERMOMETERS.
Diff.
ee a aro)
OO WNWNWW OD WY
wie woe mre oe
Nw oe Oe OO WE
3-2
WIND.
Maximum
force in |Prom
1s | a oss
CORE CTECS (OSURO Fe ee
CHNTMOEBNANwWWHAeE
—"
ry
pt.
oo
oocroococ.c[ca
eo
Nore ocoocorcore
Clouds,
Se. : C.-s.:Ci.,
moving
from
2:—:—
Sky
clouded.
7:0
Species of Clouds and Meteorological Remarks,
j
| Cirro-stratous seud.
1GE Cheviot covered with snow.
Id.
| Id.
| Id.
Td.
Id.
Seud ; cirro-stratous scud.
| Tidy: id.
lick id. J
_Id.; fine woolly cirri; cirro-strati ; cumuli; haze.
| Id.; cirro-strati ; cumulo-strati ; haze.
| Cirro-stratous scud ; cirrous mass.
Scud; dense mass of cirro-strati; rain”?
de: id. ;
Ids; Iden clouds very red ats mse
Scud ; cir.-str. ; cir. haze ; coloured lunar corona.
Thin cirri and cirrous haze.
Id.
Ld! 55 lunar corona.
| Sunday. Showers throughout the day.
| Cirro-stratous scud ; cirro-strati ; cirri; vivid aurora
| Cirro-str. scud? &c., radiating from SSW.; id.
| ithe aurora. 7
Scud and cirrous clouds; drops of rain; aurora.
Id. ; rain”; rain® since 16"
|Seud; cirri; cirro-strati; cirrous,haze.*
Id.
Id.; cirro-strati; cirrous mass.
>
Id.; dense mass of cirro-strati; rain”?
Fd): id. ; rain”?
de: id. ; rain®
Id. ; id. ; rain”?
Id.; ram?
Id,; xram??
Id.; cirro-strati; woolly cirri.
ide id. ; nts Bee cumuli.
Id. ; id. ; id. ; loose cumuli.
Id.; cirro-str. seud; cirri; cirrous haze to NI V
iGks ids; woolly and mot. cir.; cir. haz
Id.; cirro-strati; cirri.*
Tide de; woolly cirro-cumuli.
GES id.
de Tes rain”? .
ligke Tess rain?’
Seud ; cirro-strati; rain®?
Ikikys id.
tde: id
dee id
Ids; id
Id. ; id
Id.; cirro-cumulo-strati; cirro-strati.
dss id. ; id.
% “The direction
motious of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
8. Observation made at 7" 45m, 114, Observation made at 115 10™.
April 132 0>.
April 14¢ 105.
* See additional Meteorological Notes after the Hourly Meteorological Observations.
of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, S. = 16, W. = 24. The
Observation made at 235 50™,
Observation made at 10% 5m,
t Baro-
n METER
e at 32°.
he in.
21 || 29-947
22 969
3 || 29-995
0 || 30-004
1 037
2 043
3] 066
+f 078
5 102
6 123
7 141
8 154
&9 188
10 201
tl 216
12 218
13 || 30-216
14 234
15 231
16 247
17 244
8 254
9 263
20 270
21 270
2 271
23 269
0 259
i 267
} 92 264
13 250
Ez! 245
im) 238
16 232
Pf 233
! 8 255
9 271
10 271
‘1 285
12 283
/13 || 30-284
| 14 284
15 285
16 279
iy 272
18 275
19 276
| 20 289
21 286
22 285
23 273
0 264
1 244
2 233
| @ 218
4 202
HourLy METEOROLOGICAL OBSERVATIONS, APRIL 14—17, 1845. 175
THERMOMETERS.
WIND.
Maximum
Dry. | Wet. | Diff. force in [Fyrom
jh.) 10™
- a og Ibs. | lbs. pt.
44-2 |41.2 | 3-0 || 4-5 | 3-1 1
45-2 |41-2 | 4-0 || 5-2 | 3-8 1
46-2 |41-8 | 4-4 || 5-0 | 4-4 1
46-4 | 41-9 | 4-5 || 6-5 | 4-5 1
47-0 | 41-2 | 5-8 || 5-0 | 4-0 1
47-4 |42-0 | 5-4 || 5-1 | 3-8 1
46-5 |41°3 | 5-2 || 5-1 | 3-3 2
46-3 | 40-7 | 5-6 || 4-2 | 3-3 2
46-2 |41-2 | 5-0 || 2-6 | 2-6 2
45-1 | 40-5 |4-6 || 2-2 | 1-8 2
43-8 | 39-9 | 3-9 || 2:0 | 0-5 2
41-6 | 38-6 | 3-0 || 1-0 | 0-0 3
39-3 | 37-6 | 1-7 || 0-4 | 0-0 | 31
39-7 | 38-3 | 1-4 |/0-1 | 0-1 | 31
38-4 | 37-3 | 1-1 || 0-1 | 0-1 | 31
37-8 | 36-8 | 1-0 || 0-1 | 0-0 | 30
35:4 | 34-9 | 0-5 || 0-0 | 0-0
37-2 |36-2 | 1-0 || 0-0 | 0-0
37-2 |35-7 | 1-5 || 0-1 | 0-1 | 30
35-9 | 34-8 | 1-1 | 0-0 | 0-1 | 30
33-1 | 32-6 | 0-5 || 0-1 | 0-1 | 22
33-4 | 33-0 |0-4 |/0-1 | 0-1 | 20
37-1 | 35-4 | 1-7 ||0-0 | 0-0 | 20
38-5 | 36-8 | 1-5 || 0-1 | 0-0 | 22
40-9 | 39-0 | 1-9 || 0-1 | 0-0 4
42-9 | 40-7 | 2-2 ||0-2 | 0-0 4
45-3 {41-2 | 4-1 || 0-2 | 0-0 0
51-9 | 46-1 | 5-8 | 0-1 | 0-0 | 18
52-1 | 46-3 | 5-8 |/0-2 | 0-1 | 11
52-7 |46-3 |6-4 ||0-2 | 0-1 | 11
53-5 |47-0 | 6-5 || 0-2 | 0-1 8
54-3 | 46-9 | 7-4 ||0-2 | 0-1 6
55-0 | 48-0 | 7-0 || 0-3 | 0-2 4
93-0 | 46-5 | 6-5 || 0-3 | 0-3 4
51-0 | 45-8 | 5-2 || 0-3 | 0-1 4
47-2 | 43-6 | 3-6 || 0-2 | 0-0 4
45-0 | 42-2 | 2-8 | 0-1 | 0-1 4
43-4 | 41-4 | 2-0 || 0-2 | 0-1 5)
41-0 | 39-5 | 1-5 || 0-0 | 0-0
37-4 | 36-9 |0-5 ||0-0 | 0-0 | 17
38-5 | 37-9 | 0-6 ||0-0 | 0-0 | 17
36-8 | 36-3 |0-5 | 0-1 | 0-0 | 17
39-4 | 38-7 | 0-7 || 0-0 | 0-0 | 20
40-5 | 39-6 |0-9 ||0-0 |0-0 | 19
40-9 |39-5 | 1-4 |/0-1 | 0-1 | 20
41-3 |39-9 | 1-4 ||0-1 | 0-0 | 24
42-3 |41-0 | 1-3 || 0-1 |0-0 | 25
44-3 | 42-3 | 2-0 || 0-1 | 0-0
48-4 | 45-0 | 3-4 || 0-0 |0-0 | 22
48-2 | 44-0 | 4-2 ||0-2 | 0-1 | 26
51-3 | 46-6 | 4-7 || 0-1 | 0-1 | 17
57-0 | 51-5 | 5-5 |/0-1 | 0-1 | 14
59-8 |53-0 |6-8 || 0-1 | 0-1 7
08-0 | 51-4 | 6-6 || 0-2 | 0-1 7
57-9 | 50-9 | 7-0 || 0-2 | 0-2 6
58-2 | 51-8 | 6-4 || 0-2 10.3 6
Clouds,
Se. : C.-s, : Ci.,
moving
from
. pt. pt.
NNN NWNWNH WW Db wy
bo
ro bo |
|
|
|
;
|
|
|
eee gpa
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Scud ; cirro-cumulo-strati ; cirro-strati ; cirri.
lic as rele id.
Id. ; id.
Scud and loose cumuli.
Id.
Td.
Id.
Id.
Td.
Id.
liche cirro-strati and haze on hor.
Cirro-strati and haze on horizon.
Cirro-strati on horizon; clear.
Seud.
Large cirro-cumulo-strati ; milky to N.
Id.
Cirro-cumuli and cirro-strati on horizon.
Seud.
Cirro-strati on horizon ; thin cirrous clouds to W.
Id. ; clouds to BK. and SE.
Woolly and linear cirri radiating from NNE ; cir.-str.
As before; cirri tinged red. [on horizon.
Mottled and woolly cirri ; cirro-strati on horizon.
Woolly cirri; cirro-strati.
Patches of seud ; linear, woolly, and tufted cirri.
Small patches of scud; linear cirri; cir.-str. ; cir. haze.
Cirri, chiefly tufted ; cirro-strati; cirrous haze.
Woolly cirri and cirrous haze ; solar halo.
Id.
Cirri; cirro-strati; patches of scud to N.
Id.; loose cumuli to N.
Cirro-strati and patches of scud on horizon.
Cirro-strati ; haze, and patches of scud on horizon.
Id. ; id.
Woolly cirri; cirro-strati.
Woolly cirri and cirrous haze ; cirro-strati.
lies lunar corona.
Cirro-cumulo-strati ; cirrous haze; cirro-strati.
Cirri ; halo-circle of light and corona.*
Woolly cirri and cirro-cumuli; corona.
Woolly cirri and cirro-cumuli, getting thicker.
Cirro-strati ; cirri.
Id. ; id.
Id. ; id.
Cirro-stratous scud.
1 Kc Pa cirro-strati.
Thick cirro-strati.
Cirro-stratous scud ; cirro-strati ; cumuli.
Id. ; id.
Cirro-cumulo-strati ; cumuli ; haze.
Id. ; id.
Id. ; id.
vy ~yyyYvyv0000 O00 OO
SS SAS CSAS SONONOHOMOO) Ol, OO) TO)
The direction of the wind is indicated by the number of the point of the compass, reckoning N. =0, E.=8,S.=16,W.=24. The
pes of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci, (cirrus), are indicated in a similar manner.
See additional Meteorological Notes after the Hourly Meteorological Observations.
|
THERMOMETERS.
WIND. f
Gott. || Baro- Clouds,
ihteeen [Il pts Maximum Sea: C.-s. :Ci.,
Time. |} at 32°. || Dry. | Wet. | Dif.|) forcein [From] Mavs
14, | 10”,
Gly diy in. ° Md 2 Tbs. || Ibs. | pt. || pt. pt. pt.
17 5 || 30-187 158-2) | 51-5 6:7 || 0-3 10:3 | 15 |= 299. ——
6 172 || 56-8 |50-1 |6-7 0-3 |0-1 | 7
7 167 ||56-0 | 50-4 |5-6 || 0-2 | 0-1 5
8 172 || 53-8 | 49-2 |4-6 ||0-1 |0-1 Gales
9 TG 72 ae fe AS 2 see 2 Oe 45a |i
10 167 || 49-3 | 46-0 13-3 ]0-1 |0-:0 | 4 |}: 29:—
11 166 || 48-4 | 45-9 |2-5 0-1 10-0] 4 ||—: 2:—
12 164 || 48-4 | 46-3 |2-1 |0-0 |0-0
13 || 30-155 || 47-6 |45-3 |2.3 |0-0 |0-0| 4
14. 143 || 47-8 | 45-7 |2-1 ||}0-0 | 0-0
15 138 || 48-0 | 46-0 | 2-0 || 0-0 |0-0
16 || 126 || 47-2 |45-9 |1-3 |}0-0 |0-0
17|| 120 47-5 |45-8 |1-7 0-0 |0-0 | 2
18 121 || 47-7 | 46-1 |1-6 || 0-0 | 0-0 =o
19 124 ||48-3 146-8 |1-5 ||0-0 |0-0 | 2
20 122 || 50-2 |48-1 |2-1 0-1 |00 | 4
21 118 || 51-9 | 49-7 | 2-2 ||0-0 |0-:0 | 8
22 119 || 52-4 |49-8 |2-6 10-1 |0-1 | 6 —: 2:—
23 122 || 52-3) 49:3) |3-0 |0-2)10:3 | 5 i|—s 3:—
15/00 120 ||.54-2 |51-2-|/3:0 || 0:3: |0:2'|) 7 ||—- 2s 4:—
1 ALON S35: 5-22-3088, 023 \iegall —— tl 2 —
2 O01 | b4°3) | 51-4. 9259) 10:6" )/O:50 ees: || 15 t=
3 107 || 54-0 | 51-0 |3-0 0-6 |0-4 | 5 || 5:—:—
4 093 || 53-6 | 51-0 | 2-6 || 0-4 | 0-3 7 5:—:—
5 089 | 53-6 | 51-4 |2-2 10-4 |0-3 | 4] 5:—:—
6 083 || 51-3 |49-9 | 1-4 10:3 |}0-2 | 6 || 5:—:—
7 090 || 48-3 | 47-4 |0-9 0-8 |0-4 | 4
8 105 || 44-6 | 44-2 |0-4 ||0-6 | 0.2 4
9 115 || 44-0 | 43-6 |0-4 ||0-4 |0-4 | 5
10 118 || 43-0 | 42-6 |0-4 ]0-3 |0-2 | 3
11 115 || 42-7 | 41-9 |0-8 ||0-1 |0-0 | 4
12 111 || 42-4 | 41-0 | 1-4 0-1 |0-1 3
13 || 30-103 || 42-3 |40-9 | 1-4 |10-1 |0-1 2
14 095 || 42-2 |40-8 |1-4 0-1 10-0] 8
15 084 || 41-9 |40-6 |1-3 |0-1 10-0] 4
16 075 || 41-4 |40-3 |1-1 0-2 10-0! Oo
17 074 || 41-4 | 40-2 |1-2 |0-0 |0-0 | 30
18 071 || 40-4 | 39-4 | 1-0 | 0-0 |0-0 | 4 ]}—: 2:—
19 077 || 41-3 |40-0 | 1-3 || 0-1 |0-0
20 080 || 44-1 | 42-6 |1-5 ||0-0 |0-0
21 072 ||46-7 |44.3 |2-4 10-2 10-4] 2 || 4:—:—
22 071 || 48-3 |45-1 |3-2 //0-4 }0-2 | 5 | 4:—:—
23 061 || 50-2) 46-7 1375. 05: 10:5, 03, | 4232 —
19 0 054 | 52-0 |47-9 |4-1 10-6 |0-5 | 4 || 4:—:—
1 048 | 51-3 |46.7 |4-6 || 0-7 | 0-7 5
2 045 | 52-1 147-7 |4-4 11-0 |0-6 | 7
3 031 | 51-2 | 46-6 |4-6 || 1-2 |0-7 | 11
4 023 151-4 | 47-0 |4-4 1-0 |0-6 | 7
5 022 | 50-1 | 45-7 |4-4 0-7 |0-6 | 6
6 020 | 48-8 | 45-0 |3-8 0-9 |0-4] 4
7 016 | 47-8 | 44-5 |3-3 0-4 |0-4 | 3
8 021 | 45-0 | 43-0 | 2-0 || 0-4 | 0-2 2
9 025 | 42-0 | 40-8 |1-2 0-3 |0-2 | 3
10 031 | 40-7 | 39-8 |0-9 0-2 |0-1 | 3
11 035 ||39-8 |39.3 |0-5 0-3 |0-1| 4 || 5:—:—
12 039 | 40-5 |39-9 |0-6 0-1 10-0 | 3
Hour.Ly METEOROLOGICAL OBSERVATIONS, APRIL 17—19, 1845.
Sky
clouded.
Species of Clouds and Meteorological Remarks, :
“
Cirro-cumulo-strati ; cirro-strati; haze.
Cirri; cirro-strati and haze on horizon.
Bank of cirro-strati to E.; cirri.
Cirro-stratous scud.
Td.
Cirro-cumulo-strati; lunar corona.
Cirro-strati; cirro-cumulo-strati.
lial ¢ id.
Cirro-strati; cirro-cumulo-strati.
Cirro-cumulo-str ; cirro-strati lying in ridges N. to
Homogeneous.
Seud and cirro-strati broken up.
Thick cirro-strati.
Thick rippled cirro-strati.
Id.
Id.
Cirro-strati; cirrous mass.
Jt Bs id.
Cirro-stratous scud.
Id.
Seud.
Id.
Id.
Misty scud breaking.
Seud ; cirro-strati.
libs ad: mist at 3 miles.
Scotch mist at 1 mile.
Td. ;
Seud. ; light drizzle.
Id.
Id.
Seud.
Id.
Id.
Id.
Cirro-stratous scud ; cirro-strati; cirri.
Cirro-cumuli ; cirro-strati; woolly cirri; cirrous haz
Thick cirro-stratous scud and cirro-strati. 4
Homogeneous mass of cirro-strati? ; patches of scud,
Misty scud ; cirro-stratous scud ; slightly foggy. —
Thick scud.
Seud ; loose cumuli.
IGS id.
des id.
Patches of scud.
Id.
Id.
Cirro-strati and haze on horizon.
Td.
Id.
Haze round horizon.
Id.
Cirro-strati and haze.
Misty scud moving rapidly ; corona; milky to N.
ide or fog at } mile. _
light drizzle.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H. = 8, 8S. = 16, W.= 24. — The
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Baro-
METER
at 32°.
Dorp w
VK OOON
807
806
811
813
811
815
812
‘|| 29-804
797
796
778
768
768
‘April 204 175,
April 20¢ 19%,
(meters removed to the eastern side of the Observatory before 64.
HovurLty METEOROLOGICAL OBSERVATIONS, APRIL 20—22, 1845.
THERMOMETERS.
Dry.
53-2
37-6
36:6
36-6
56-9
55-7
51-0
48-1
45:3
40-4
37-0
35-4
34-2
34:0
33:8
31:7
33-6
Wet.
°
49-6
36-9
36:3
36-4
33-9
34-6
35-0
37-6
39-4
43-2
47-2
49:8
51:0
03-0
55:0
53-0
52-4
o1-9
50-7
33-3
Diff.
WIND.
Maximum
force in |Pyom
jx,
10™,
—_
—_
Clouds,
Sc.: C.-s,: Ci.,|
moving |
from
pt. pt. pt.
Sky
clouded.
Species of Clouds and Meteorological Remarks.
177
Sunday—Very clear all day ; very faint streaks of cirrus seen near hor. §
Very clear ; heavy dew.
liGihe id.
Very thin cirri to SW. ; corona.
Thin cirri to SW.; cirrous haze on E. horizon.
Cirri to H. and S.
Id.
Thinnest cirrous streaks near horizon.
Td.
Id.
Id
Thinnest patches of scud to S.
Patches of scud and cumuli to S. ; cirrous streaks.
hae id,
Tdi; haze on horizon.
liGhe id.
Streaks of haze.
Id.
Id.
Vertebrated cirri.
Woolly cirri; hazy on horizon.
dhs id.
Thin cirrous clouds to SW.
Id.
Id.
Linear cirri on NE. horizon.
Tal hazy.
idles id.
Clear ; slightly milky to E.
Id.
Cirri and haze on horizon.
Cirro-strati on NE. horizon.
Clear.
Milky streaks.
Id.
Clear.
Thin streaks of cirri to S.
Clear.
near horizon.
Thin streaks of cirri to E.
Id.
Haze round horizon.
Id.
Clear ; greenish corona, 3° diameter.
Id.
Clear ; faint corona.
Td.
Id.
Reddish vapours.
Tdi
Haze.
« Liyre was visible till 174 26™; the sun’s upper limb was above the horizon at 17" 31™.
Observation made at 19» 8m,
\pril 212 185, + Thermometers removed to the western side of the Observatory before 18". 214 21. | Returned after 215. 224 64, + Ther-
224 8b. | Returned after 8.
See Introduction, p. liv.
See additional Meteorological Notes after the Hourly Meteorological Observations.
MAG. AND MET. oBs. 1845.
oY.
OCOVOOOOOO0O00000 vvvyy vryvrwrv(S0000000000000 yvrvy
Ovyeyryy yyy
| 24
Gott Bako-
Mean METER
Time at 32°
d. h in.
22 19 || 29-761
20 754
21 746
22 739
23 724
Dei 10 704
1 693
2 678
3 663
4 647
5 628
6 625
7 624
8 624
9 652
10 620
ial 619
1 625
13 || 29-614
14 606
15 598
16 596
17 587
18 587
19 592
20 597
21 601
22 601
23 594
0 584
1 566
2 359
3 548
4 DBM
i) 537
6 531
Ff 519
8 541
9 542
10 541
11 546
12 548
13 || 29-545
14 541
15 537
16 ya7h
7/ 529
18 530
19 528
20 539
21 530
22 525
23 501
Zo) 0 474
1 448
2 434
?
Hovurty METEOROLOGICAL OBSERVATIONS, APRIL 22—25, 1845.
THERMOMETERS. WIND.
Maximum
Dry. | Wet. | Diff.|| force in | Prom
14, | 10m,
‘ 2 oF) tbsee | ose pt
36-1 |35-1 | 1-0}| 0-1 | 0-0 | 20
40-2 | 38-1 | 2.1]] 0-1 |0-0
45-2 | 42.4 | 2.9]) --. | ...
50-7 |45-0 | 5-7|/0-1 |O-1] 8
55-3 |47-8 | 7-5]|0-3 |0-2 | 7
57-7 149-8 | 7-910-5 |0-4) 7
59-2 |51-4 | 7-8110-6 |0-5 | 7
59-0 | 50-6 | 8-4]/0-7 |0-7 | 6
57-8 |49-2 | 8-6111-0 |0-7 | 7
56-8 |49.2 | 7.61 1-2 |0-7 | 7
57-2 149-2 | 8.0/0-7|0-5 |] 5
53-7 |47-6 | 6-11||0-6 |0-4 | 7
51-3 |46-6 | 4.7t] 0-4 |0-2| 6
45-4 |42-7 | 2.71 0-4 |0-2 | 7
42.2 140-7 | 1.5||/0-2 |0-1)} 4
39-8 | 39-2 | 0-6||0-1 |0-1] 7
38-3 | 38-2 | 0-1 || 0-1 | 0-0
38-2 |38-1 | 0-1 || 0-1 | 0-0
37-2 |37-0 | 0-2|| 0-0 | 0-0
36-8 | 36-7 | 0-1 || 0-0 | 0-0
35-9 | 35-7 | 0-2]| 0-0 | 0-0
35-6 |35-3 | 0-3] 0-0 | 0-0
34-0 | 33-8 | 0-2|/0-0 |0-0 | 22
33-4 | 33-2 | 0-2] 0-0 |0-0 | 20
35-0 |34-8 | 0.2] 0-0 | 0-0
36-2 | 36-0 | 0.2//0-:0 10.0 | 8
37-2 |37-0 | 0-2|/0-1 | 0-1 | 10
40-5 |39-8 | 0-7||0-2 |0-1 | 7
44-3 |42-9 | 1.4]/0-1 10-1 5
46-0 | 43-8 | 2-2/0-3 |0-2| 4
50-6 |46-2 | 4.4] 0-3 0-3] 4
54-0 |47-7 | 6-3]/0-5 |0-5 | 4
52-7 |47-7 | 5-0]/0-7 |0-7 | 3
52.6 147-8 | 4.8]/0-7 |0-7 | 5
51-0 |46-7 | 4.3/0-8105] 3
50:3 |46-6 | 3-7||0-5 10-3 | 3
48-3 |45-3 | 3.0/0.5 |0-4 1 3
44.7 |43-3 | 1.4||0-3 | 0-1 2
41-7 |41-1 | 0.6//0-2}0-0| 4
39-7 |39-6 | 0-1//0-2 10-0 | 6
39-7 | 39-6 | 0-1 || 0-1] 0-1 7
39-6 |39-5 | 0-1] 0-1 | 0-0
39-3 | 39-2 | 0-1//00 | 0.0
39-3 | 39-2 | 0-1 || 0-0 | 0-0
38-8 | 38-6 | 0-2]/0-:0 |0-0 | 8
38-2 |38-0 | 0-2]/0-0 | 0-0 | 15
37-9 | 37-7 | 0-2||0-0 |0-0
37-7 |37-5 | 0-2|/0-0 |0-0 | 18
38-0 | 37-8 | 0-2||0-0 | 0-0 | 28
38-4 | 38-2 | 0-2|/0-0 |0-0 | 26
40-5 |40-3 | 0-2]0-0 |0-.0 | 4
43-4 142.7 | 0-7|/0-1 |0-1 | 8
45-1 |44.0 | 1-1]0-2 |01| 4
50:7 |47-8 | 2-9110-3 |0-2} 4
58-6 |53-2 | 5-41/10-5 10-5 | 4
65-6 |55-3 {10-3 || 1-5 12-0 | 15
Clouds,
Se. : C.-s.:Ci.,
moving
from
pt. pt. pt.
8:—:14
—:—:14
—:—:14
—:—:14
—:—:16
—:—:14
—:—:14
—:—:14
4: 9:—
—:—:10
6:—
12:—: 24
14:—: 24
16: —
Sky
clouded.
Species of Clouds and Meteorological Remarks,
| Cumuli to S.; woolly cirri;
Very thin cirrous cloud to E.
Id.
Linear cirri and haze to E.
Id.
Woolly and linear cirri to E.
Patches of scud; woolly cirri and haze.
de’; id.
Woolly and linear cirri.
Id.
Id.
Woolly linear and diffuse cirri; halo.
Es id.
Id. ; fog bank to E.
Td: 5 id.
Tas; id.
Cirrous mass and haze.
Fog; objects invisible at 100 yards.
Fog ; objects invisible at 100 yards.
Id.
Id.
Id.
Id.; objects invisible at 300 yards.
ids id. 200 yards.
ids; id. 250 yards.
Id. ; id. 500 yards.
lise id. 3 mile.
igh: id. 3 miles.
Fog-cloud ; cirro-strati.
Cirri; portion of a halo ; Cheviot invisible.
Td. ; id. ; patches of scud.
Id. oC BR id.
Tide Tes cirrous haze.
ides ide; id.
Id. hazy to E.
aes id.
Id.
Haze on horizon.
Id.
Fog commenced at 9" 55™ from eastward.
Fog; objects invisible at 200 yards.
Id. ; id. 100 id.
Fog ; objects invisible at 100 yards.
itd; id. 200 yards.
hel id. 200 yards.
Id. ; id. 200 yards.
Isles id. 200 yards.
lds id. 200 yards.
Id. ; id. 250 yards.
das id. 300 yards.
ligles id. 350 yards,
Tale id. 4 mile.
Fog clearing off; loose foggy scud.
Detached cumuli; id. ; id.
Cum. ; cir. and cir. haze : electric-looking ; very hazy.
very hazy on horizon.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8,8.=16, W. = 24. he
‘.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
It was found on trial that when the feather-vane was pointing from the north, its index pointed to NNE. ;
this error could have existed for a short period only.
motions of the three strata of clouds, Sc. (scud), C
April 24¢ Oh 40™,
was set right ;
; the index E |
é
q =
Be an ap)
|
|
|
|
=
|
“lf
|
+5
HourLy METEOROLOGICAL OBSERVATIONS, APRIL 25—28, 1845. 179
THERMOMETERS. WIND.
sz Clouds,
ie) BARO- Maxi Se.: C.-s.: Ci.,|] Sky ,
Mean || METER ae cell aleandedl Species of Clouds and Meteorological Remarks.
Mime. || at 82°. || Dry. | Wet. |Dis.) forcein [From] “Mrs jjooue®
14, |10™,
° ° © || Ibs. | Ibs. | pt. || pt. pt pt. || O—10.
63-4 |54-7 |8-7 || 1-7 | 1-1 | 14 || 16:—:—|| 9-5 || As before; solar halo.
62-8 | 53-9 |8-9 || 2-0 | 1-7 | 13 10-0 || Nearly homogeneous cir. haze; patches of cum. to SW. ©
60-9 |53-7 | 7-2 || 1-9 | 1-3 | 14 10-0 || Thick cirrous haze. H
58-3 | 52-4 | 5-9 || 1-5 |0-5 | 14 10-0 Id.
57-2 | 51-3 |5-9 ||0-7 | 0-3 | 13 10-0 Td.
56-8 | 50-6 |6-2 ||0-9 | 0-5 | 12 |} —:16:—|| 10-0 || Cirro-stratous seud ; cirro-strati; cirrous mass.
56-7 | 50-3 | 6-4 |} 1-2 | 1-2 | 14 10-0 ils 3 id. ; id.
55-7 |49-8 |5-9 11-3 | 1-5 | 14 10-0 || Scud and cirro-strati.
55-6 |49-6 |6-0 ||2-0 | 1-5 | 14 10-0 Ids: light, as from a fire on S. horizon.* |
54-4 |49-6 | 4-8 || 2-1 |0-6 | 14 10-0 Id.
53-3 | 49-4 |3-9 || 1-8 | 1-8 | 14 10-0 || Scud and cirro-strati ; drops of rain.
52-7 | 49-7 |3-0 ||3-3 | 4-3 | 15 10-0 Id. ; rain; light on hor. to N by E.*
52,7 | 50-8 | 1-9 || 3-7 | 3-0 | 14 10-0 Kd. ; rain
51-6 | 50-2 | 1-4 ||3-4 | 1-5 | 14 10-0 Id. ; rain!
51-8 | 50-2 |1-6 || 2-4 | 2-7 | 15 || 14:—:—J|| 10-0 || Scud; scud and cirro-strati ; rain °°
51-5 | 50-2 | 1-3 || 1-7 | 1-5 | 14 || 14:—:—] 10-0 lic Be id. ; id.
51-6 | 50-3 | 1-3 |} 1-5 {1-6 | 15 || 14:—:—|| 10-0 Id. ; 10.) rain 1°
53-2 | 52-0 | 1-2 |} 2-0 }1-3 | 16 || 15:—:—|| 10-0 ill, 2 id. ; id.
54-4 |53-0 | 1-4 || 1-2 |0-4 | 15 ||} 16:—:—J| 10-0 || Id.; dense mass of cirro-strati; drops of rain.
55-0 | 53-0 |2.0 |/0-8 |0-3 | 16 10-0 || Id.; TORS raint® —[thick.
56-0 | 54-4 11-6 ||0-8 |0-6 | 17 || 17:—:—|j 10-0 ae ides clouds dark and
54-0 | 51-8 | 2-2 || 1-4 | 1-4 | 20 |} 20:—:—]| 9-9 || Id.; cirro-strati; cirrous mass; sky to SW.
55-8 | 51-7 |4-1 || 2-4 11-6 | 18 || 20: —:— 9-5 Id. ; loose cumuli; cirro-strati ; woolly cirri.
55-9 | 50-4 | 5-5 |] 2-2 | 1-6 | 22 || 20:—:—|| 4-0 || Loose cumuli; nb & id. Oo}
56-0 | 49-8 | 6-2 || 2-3 | 1-7 | 20 || 20:—:—]] 2-5 Td. ; 165.6 id. ro)
57-2 | 50-8 |6-4 || 1-7 | 1-3 | 18 || 19: —:—]| 3-0 Mase: cumuli; cirro-strati. (0)
57-4 |48-4 |9-0 || 1-8 |0-6 | 20 |) 18:—:— 1-5 gl. fo)
56-2 |48-3 | 7-9 ||0-7 |0-2 | 16 |}16:—:—]| 3-5 lig cirro-stratous scud ; cirri. ©
50-1 | 46-9 | 3-2 ||} 2-5 |0-4 | 16 | 14:—:— 9-5 || Scud; cumuli; nimbi; cumulo-strati ; cirri; showers.
49-6 |45-6 |4-0 ||0-5 |0-4 | 15 || —:14:—J| 9-0 || Cirro-stratous scud ; rain?
47-3 | 44-4 |2-9 ||0-4 |0-2 | 14 || —:14:—] 7-0 Id.
48-0 | 45-3 | 2-7 || 1-4 | 1-0 | 16 10-0 Id.
47-2 |45-3 |1-9 || 1-0 |0-3 | 17 | 9.8 Id.
47-9 |45-7 |2-2 ||1-0 |0-5 | 18 10-0 || Rain °?
| 233) 98.976 || 55-0 |50-7 |4-3 |14-2 |2.6 | 16 || 16:18:—|] 10-0 Neate ane cirro-cumulo-strati ; showers through-
2713 | 29.117 || 48-9 | 46-7 | 2.2 | 4-2 | 1-3 | 20 5:0 || Scud.
} 14] 144 | 48.4 | 46-4 | 2-0 | 2-0 | 1-1 | 20 4-0 || Id
} 15 158 || 47-8 | 46-2 | 1-6 || 2-2 | 1-6 | 20 7-0 Id.
1916) 177 47-9 | 46-7 |1-2 | 1-6 |1-1 | 18 | 20:—:—]| 9.5 || Ia; rain?
| 7 191: || 47-8 | 46-2 | 1-6 ||/1-8 | 1-1 | 20 7-0 Id.; woolly cirri, lying WSW. and ENE.
Sd 206 ||47-2 | 45-4 | 1-8 || 1-2 |1-0 | 20 || 21:—:21]| 7-0 Ihe 1d, lying SW by W. and NE by E.
19 233 {148-6 |46-5 | 2-1 |} 1-5 |0-5 | 18 || 21:—:— 7-0 Id.; loose cumuli; cirro-cumulo-strati.
} 20 251 1150-6 | 47-9 |2-7 || 1-4 |0-7 | 20 || 20:—:—J]} 9-9 || Id.; dense cirro-strati and cirro-cumulo-strati.
21 277 || 51-2 | 48-1 |3-1 || 1-0 |0-8 | 20 || 20: 21:—| 10-0 Ikke id.
22 288 1151-9 | 48-4 |3-5 || 1-2 |1-0 | 19 || 20:21: 21 9-5 Id.; woolly cirri; cirro-cumulo-strati; shower °”
i Bo 300 || 53-7 | 50-2 |3-5 | 1-6 | 1-1 | 19 || 20: 21 : — 9-8 Id. ; cirro-strati ; drops of rain.
28 311 ||}54-7 | 50-2 | 4-5 || 1-3 | 1-4 | 20 9-9 Id. ; id.
(| Maat 326 ||55-9 | 51-7 /4-2 | 1-4 |1-3 | 19 | 20:—:—] 9-8 | Ia; id.
72) 336 1156-7 | 51-3 |5-4 1-7 [0-9 | 20 ||20:—:—] 98 || Ia; id.
3 339 || 57-9 | 51-6 |6-3 ||1-0 | 1-2 | 21 || 20:22: 22 9:8 Id. ; loose cumuli; woolly cirri; cirro-strati. (2)
Es 345 || 57-0 | 51-2 |5-8 || 1-2 |0-9 | 20 || 20: 21:—¥| 10-0 lice ides cirro-cumulo-strati; cirro-strati.
5 351 || 56-1 | 50-3 | 5-8 || 0-7 |0-3 | 19 10-0 | Thick cirro-strati and cirro-cumulo-strati. |
1g 366 || 54-8 | 48-8 |6-0 ||0-2 |0-1 | 21 10-0 || Scud ; cirro-strati; cirrous mass.
ig 369 152-8 | 48-3 | 4-5 |'0-2 |0-2 | 18 || 20:—:—|| 10-0 | Ia.; id: ; ids drops of rain.
8 389 ||50-6 {47-5 | 3-1 ||0-7 | 0-1 | 18 10-0 || Thick cirro-strati.
April 264 6 40™. Heavy shower, with gusts of wind.
s April 264 235, Observation made at 23" 20™.
April 2841», Observation made at 1» 6™.
* See additional Meteorological Notes after the Hourly Meteorological Observations.
29
OCOnNaAUBhwnwr ce
a
—
12
30
Hovurty METEOROLOGICAL OBSERVATIONS, APRIL 28—30, 1845.
THERMOMETERS.
Dry. | Wet. | Diff.
oe
(00)
uN
aN
i=)
ROO st
No aonb Onna
1-4
1-4
51-3 | 49-8 | 1-5
51-0 | 49-4 | 1-6
50-5 | 48-6 | 1-9
50-8 | 48-4 | 2-4
50-8 | 48-2 | 2-6
SSSCSCSCOHPH HHH HH eH
WIND.
Maximum
force in
Pe (Om.
PEP AaWweAwowHann
From
pt.
20
The direction of the wind is indicated by the number of the point of the compass, reckoning N.=0, E.=8, 8.=16, W.=24. The |
C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Clouds wild and stormy-like.
motions of the three strata of clouds, Sc. (scud),
April 304 1:—
2h,
Clouds,
Se.
: C.-s.: Ci.,
moving
pt.
from
pt.
pt.
,
Species of Clouds and Meteorological Remarks,
Thick cirro-strati; rain!
dre rain!
Id. ; 2 rain!
| | Seud and cirro-strati; sky to W.
Seud and cirro-strati.
Id.
| Cirro-stratous seud.
| iid,
Smoky seud ; cirro-strati; cirro-cumuli.
Id. ; id. ; cirri. 4a
Cirro- earaalee strati ; ani of cirro-strati round hor. | 1
Id.
Loose cumuli; cirro-strati to E.
Tidy; ids cumuli. q
lds; cumuli; cum.-str. ; cir.-str.; cirri.
Sond and loose cum. ; cum.; cir.; portion of faint halo.€
Tdi. cirrous mass.
Id*; id. ; faint halo.
Tae id. ; id.
id= id. ; id
ithe id. ; id
Seud ; nearly homogeneous cirrous mass, thicker.
Id. ; id.
Homogeneous cirrous mass ; rain”
Scud ; homogeneous cirrous mass ; rain”?
Td: = real rain’?
Rain"?
Id.
Seud and cirro-strati.
Id.
libbe drops of rain.
Seud ; loose cirro-cumulo-strati.
Loose seud ; thick cirro-strati.
dys cirri to W.
Id.
Id.
Hie cirro-strati ; cirri.
Td. id.
Id. ; id.
Fa id.
Smoky scud; scud ; cirro-strati; cirrous mass.
Mottled cirro-strati; seud ; cumulo-strati.
Scud ; cirro-strati.
Id.; cirro-stratous scud ; masses of cirro-strati.
Ide; id. ; id. 7.
Id.; woolly cirri and cirro-strati.
Id.; cirro-strati ; drops of rain.
Id.; woolly cirri; cirro-strati; shower! .
Id.
Id.
Id.; auroral light to N.; rain?
Id.; clouds broken.
Seud ; faint auroral light to N.
lig Bs id.
Hovurty METEOROLOGICAL OBSERVATIONS, APRIL 30—May 2, 1845. 181
THERMOMETERS. WIND.
xott. Un: || a a | | = RT ‘ an
Ten METER Maximum fea a aah a Species of Clouds and Meteorological Remarks.
Mime. || at 32°. || Dry. | Wet. | Diff. || force in
50-5 . . . ° :—: : Smoky scud ; cirro-strati.
50-3 : : : . : : Heb, id.
51-0 : : . : :—: : lol, & id.
50-4 | 48. : . : = . Scud ; loose eumuli.
52-6 . : . . : : : Loose scud ; linear cirri; cirro-strati.
53-6 : : . . 2D . “3 loose cirro-strati; cirri; cirrous haze.
54-1 . . : : :—: . y: woolly cirri; cirrous haze; clear to N.
lel? cirro-strati.
ong loose cumuli; linear cirri; cirro-strati.
nimbi; cirro-strati; shower!
onal: nimbi.
nimbi; cirro-strati ; passing showers.
il, 2 id. ; double rainbow.
cumuli; nimbi; cirro-strati; very fine double rainbow.*
1d. id.
TBR id.; showers.
cirro-strati.
® ©0000 O00000
Seud and cirro-strati on horizon.
Scud ; cirro-stratous scud ; light to NNW.
Id. ; 1des sky rather milky.
Scud ; cirro-stratous scud ; sky rather milky.
id. ; rain”
cirri.
cirro-strati ; cirri.
bet et et DO te
TOO OO Ne
ON Oe pi J SS)
=aWWID RE ONYWA HB WENO
Tel 8 cumuli ; cirri.
id. ; Ws Tels
cumuli; nimbi; cirri; 0" 10™, rain!
loose a cumuli ; woolly cirri.
woolly cirri.
id.
ins id. ; cumuli; cumulo-strati; cirri.
Id. ; id. ; Kol, © id. ; id.
Loose cumuli; nimbi.
Masses of woolly cirri, like fir branches ; scud.
Id., much denser; passing showers; scud, &c.
Masses of cirri and cirro-strati.
Id.
Dense clouds.
Cirrous clouds.
>
?
>)
>
3
>
bd
.; loose cumuli.
a
?
>
>
>
>
SHNSWANINTNOONOKLOAOGAH OH SGE
OOO O00 O
222
a &
Cirrous clouds and haze.
Cirro-strati.
Id.
Id.
Scud ; cirri and cirrous haze.
Id.; thick cirro-strati and haze.
Id.; nearly homogeneous cirro-strati and cirri.
Id. ; id.
IGhs id.
Id.; cirrous mass.
Id. ; id. ; cirro-strati.
45-2
45:8
46-2
J TS 1 TY SS (Se) LS
OCHobhAAD AOL
April 304 214 30™, Portion of a solar halo.
May 14. Thunder and lightning at Wolflee, about 13 miles SSW. of Makerstoun.
May 1414. Observations made at 14 13™,
* See additional Meteorological Notes after the Hourly mee Observations.
MAG. AND MET. OBS. 1845.
182 Hour Ly METEOROLOGICAL OBSERVATIONS, May 3—5, 1845.
THERMOMETERS.
Gott. Barko-
Mean METER
Time. || at 32°. || Dry. | Wet. | Diff.
dane in. 2 2 2
3 0 || 29-426 | 52-6 | 47-8 | 4-8
1 418 || 53-6 | 48-2 | 5.4
2 417 || 53-1 | 48-1 | 5.0
3 422 |53-2 | 48-2 | 5-0
4 425 | 53-2 |47-6 | 5-6
5 430 | 54-8 | 48-7 | 6-1
6 445 || 55-0 | 47-0 | 8-0
7 471 || 51-2 | 44 6T 6-6
8 491 | 48-0 | 43-6 | 4.4
9 508 | 46-2 | 42-1) 4-1
10 521 || 44-4 | 40-4 | 4-0
11 537 |43-3 | 39-8 | 3-5
12 540 || 43-3 | 40-8 | 2-5
234 29-541 || 50-1 | 44-2 | 5-9
4 13 || 29-685 || 38-6 | 37-5 | 1-1
14 684 || 38-5 | 37-2 | 1-3
15 676 ||39-7 | 37-5 | 2-2
16 666 || 40-0 | 37-0 | 3-0
17 662 || 40-6 | 37-6 | 3-0
18 659 || 42-0 | 38-7 | 3-3
19 658 || 43-0 | 39-7 | 3-3
20 652 || 43-3 | 40-0 | 3-3
21 638 || 45-9 | 41-0 | 4.9
22 656 || 43-8 | 41-8 | 2-0
23 664 || 45-8 | 42-4 | 3-4
5 0 681 || 46-5 | 41-2 | 5:3
1 683 || 48-2 | 42-0 | 6-2
2 686 || 47-7 | 41-4 | 6-3
3 690 ||47-5 | 40-7 | 6-8
4 695 || 48-3 |41-8 | 6-5
5 695 || 47-3 |41-7 | 5-6
6 700 || 46-0 | 40 st 5-2
7 703 || 45-4 | 40-4 | 5-0
8 708 || 42-9 | 38 sl 4-1
9 707 || 40-4 | 37-7 | 2-7
10 710 || 38-3 | 36-9 | 1-4
11 711 || 40-3 | 38-7 | 1-6
12 702 || 41-3 | 39-7 | 1-6
13 || 29-695 || 41-7 | 40-5 | 1-2
14 685 ||42-5 | 41-4 | 1-1
15 670 | 42-3 | 41-3 | 1-0
16 654 | 42-1 | 41-2 |0-9
17 647 | 42-3 | 41-2 | 1-1
18 640 | 42-8 | 41-6 | 1-2
19 636 || 43-7 | 42-0 | 1-7
20 634 || 45-3 | 43-5 | 1-8
21 622 || 45-7 | 43-2 | 2-5
22 608 ||47-0 | 43-9 | 3-1
23 601 | 47-6 | 43-8 | 3-8
5 0 599 ||48-3 | 44-7 | 3-6
1 596 |\48-4 | 44-2 | 4.2
2 601 || 48-2 | 43-9 | 4-3
3 604 || 49-2 | 43-4 | 5-8
4 605 || 48-8 | 44-3 | 4-5
5 619 || 47-4 |43-9 | 3-5
The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E.= 8, S.=16, W.= 24. The
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
WIND.
Maximum
force in
Mus
rpm AwoR Dd tw ae
CO, KF KF NN KR KK KH DH
to
10™,
From
wNwWwWwwanwNnwhd =
—
NASTY TOON A DN
May 4718, Observations made at 184 10™.
30:
eee e crc ig | | 4
Owoonnnaoaanrh PSs
<a |) coven lop teaieaal cencon | | |
[alps leet al eal -lRe| lela lat le tsa]
ee fo Re eld lint | les el anh
Sky
clouded.
1S cane nimbi; and passing showers of ©
| Seud and loose cumuli.
Species of Clouds and Meteorological Remarks,
Seud.
Id.
Id.; cirro-strati; cirri.
Id.; woolly cirri; cumuli; cirro-strati.
Id.; cumuli; cumulo-strati ; cirro-strati ; cirri.
Id.; woolly cirri; cumuli, &c., as before.
Cumuli; cumulo-strati; nimbi; rainbow.
Id. ; 10 B28 woolly cirri; cirro-strati.
Id. ; id. and cirro-strati on horizon.
als id. id.
Takes id. id.
Id.; —_cirro-strati.
Seud ; id.
hail and rain.
Cirro-strati ; sky rather milky.
Id., (2) on E. horizon.
Cirro-strati.
Cirro-cumuli; cirro-strati.
Cirro-stratous scud ; woolly cirro-strati; cir.-cum.
Id.
Cirro-cumuli ; cirro-strati.
iol 2 id.
Cumuli; cirro-strati.
Cirro-stratous scud; cirro-strati.
Seud and loose cumuli.
Td.
Id.
Id.
Id.
Id.
Id.
Loose cumuli.
Id. €
Id. —¢
Cirro-str. scud ; streaks of cirri radiating from NW.
Td; id.
Overcast.
Id.
Overcast.
Id.
Id.
Thick seud.
Id.
Loose scud ; cirro-stratous scud ; rain’?
Smoky scud ; cirro-stratous scud ; cirri. a
Smoky and cumulous seud ; cirro-stratous scud; rain®
IGS id. ®:
lds woolly cirro-cumuli.
Id.; cir.-str. scud ; cir.-cum. €
Cumulous scud ; cirro-stratous scud. . a
Id. : id. zt ‘
Nd. s id.
id
Cumulous scud ; cumuli. BG
ice cirro-stratous scud.
ii
i]
f
=
7
itt. BaRo-
2an || METER
‘me. |} at 32°.
h. in.
6 || 29-621
“Zi 636
si 645
9|| 659
10| 672
| 11 681
| 12| 692
AB 29-696
}14} 701
15|| 703
16| 692
17| 685
18|| 668
19|| 657
20) 645
21 630
122 617
23); 609
0| 597
1 586
2\| 573
3] 554
4|| 545
5]| 533
6|| 502
7\| 492
8 493
9 486
10 467
li| 454
}12] 446
y
| 13 | 29-433
114i) 415
15] 414
16|| 405
17) 391
/18|} 386
19] 375
20|} 366
21} 359
22/) 351
23|| 342
0} 332
1]} 322
| 2] 312
| 298
4] 290
5] 281
6] 282
7| 282
‘| 8| 294
|9! 301
10 309
‘11 ~=310
12|| 313
HovurLy METEOROLOGICAL OBSERVATIONS, May 6—8, 1845.
THERMOMETERS.
Dry. | Wet. | Diff.
46-4
45-4
44-7
44-6
42-9
40:7
41-2
39-6
39-1
39:3
39-4
39:5
39-8
39-6
39-0
38-3
38-4
38-0
37-7
38-1
39-0
40-2
41:5
41-9
42-7
42.4
40-4
43-9
42-9
41-8
42-0
41-7
40-4
40-1
38-9
38-6
37-4
36-3
NTP OOF OO Wp
Maximum
force in
ens
Soe kKH OF ee L
2 :
3-1
ee WWI) Coe Ge
orempyas wad
0-0
0:0
CHHHWOAE
WIND.
TOm:
From
AK OAK wh Oe
PHONNNNKWKhWeENNNKOCOCOCONWAWwW,A
PP BIR ON NOWRPWADAWWH BD EK
we
Clouds,
Sc. : C.-s.: Ci,
moving
from
pt.
aL Ghs
Kan os
roto em bo | cow
bo bo bo bo
|
Bs deell | OD
iS
|
ono a
|
Sky
clouded.
a oS Cay oe Ta.
Species of Clouds and Meteorological Remarks.
Cumulous seud ; cirro-stratous scud.
Scud.
Id.
Id.
Id.; rain”
Id.; rain?
Id.; id.; dark.
Seud; rain? ; dark.
ld esses id.
IGE S {s6b9 id.
Id.; cirro-stratous scud ; cirrous mass.
Id. ; id. ; id.
Cirro-stratous scud; wavy cirro-stratus; cirrous mass.
Loose scud to E.; dense cirro-strati over the sky.
Loose scud in patches; cirro-stratous scud.
at; id.
Scud ; cirro-strati and cirrous haze.
Thick seud.
Id.
Id. ;
lel, ¢
Id. ;
Id.
Id.
Id.
Rain”?
Rain!
Scud ; rain
ldesy jad!
Very dark; rain?
Id. ; id.
rain?®
shower? >—2
rainl—3
rain?
dense mass of cirro-strati above? rain®®
dense cirro-strati and haze; rain”?
we we ve
Very dark; rain”?
Scud; showers!
Id.; showers!—?
Id.
Id.; cirro-stratous scud ; linear cirri.
Id. ; id. ; mottled and linear cirri.
Cirro-stratous scud ; scud near horizon; rain?
|
|
|
|
Id. ; id, 0)
Scud ; cirro-stratous scud. e
Id.; loose cumuli; cirri and cirro-strati.
Id. ; id.
Id. ; id. 5 cirro-strati; cirrous haze.
Id. ; id. ; id. ; id.
Id. ; id. ; id. ; id.
Id. ; id. ; haze breaking ; solar halo.
Id. ; id. ; cirro-strati ; woolly cirri. (=)
Id.; woolly cirri. ©
Id. ; loose cumuli; woolly cirri. (s)
Id. ; cirro-stratous scud ; woolly and linear cirri. ©}
Cirro-statous scud; woolly and linear cirri.
Tay scud on horizon ; masses of cirri.
Id. ; masses of cirri.
Scud and cirro-strati, near horizon radiating from N.
Id.
a he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.= 8, 8S.=16, W.= 24. The
ptions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
8
184 Hourty METEOROLOGICAL OBSERVATIONS, May 8—11, 1845.
THERMOMETERS. WIND. Clouds
Gott. BaRo- |——@_—___- || ——__—__——_- Sr
ine ll naan Maximum Sc.: C.-s: Ci.) Sky
Mime. |||) at ols. Dry. | Wet. | Diff. force in |Pyom ee clouded.
rom
14, | 107.
a Phe} in. 2 2 < lbs. | Ibs. pt. pt. pt. pt. 0—10.
813 | 29-317 || 37-0 | 36-7 |0-3 ||0-0 | 0-0 7:
14 317 || 38-4 |37-9 |0-5 || 0-0 |0-0 10-0
15 318 || 39-0 | 38-5 |0-5 ||0-0 |0-0 9:8
16 | 321 || 39-6 | 39-0 |0-6 || 0-1 |0-0 4 9-5
17 321 || 39-1 | 38-3 |0-8 || 0-1 | 0-0 4 |10:10:— 8-0
18 329 || 38-7 | 38-0 |0-7 || 0-0 | 0-0 4 5:10:— 3-0
19 332 || 39-5 | 38-9 |0-6 || 0-0 | 0-0 3 5:—:—]| 10-0
20 331 || 41-7 | 41-3 | 0-4 |/0-1 | 0-1 4 5:—:—|} 10-0
21 329 || 39.2 | 38-7 |0-5 ||0-8 |0-2 2 6:—:—| 10-0
22 320 || 42.2 | 41-0 | 1-2 |/0-3 |0- vo 4:—:—j| 10-0
23 316 || 44-9 | 44-7 |0-2 ||0-6 |0-1 | 12 }10: 9:— 9-5
9°0 314 147-5 |44-4,|3-1 ||0-4 | 1-3 8 9:—:— 9-8
1 319 || 47-0 | 43-4 |3-6 || 1-1 | 1-1 | 10 9:10:—]| 9-8
2 317 ||49-.2 |}45-0 | 4-2 | 1-4 | 1-1 9 |10:11:—j] 9-0
3} 312 | 49.2 | 45-8 | 3-4 |} 1-1 | 1-1 7 110:11:— 8-5
4 310 | 50-4 |46-0 | 4-4 || 1-0 |0 9 | 10:—:— 9-0
5 308 || 47-2 | 44-2 |3-0 || 1-2 | 0-5 8 | 10:—:— 9-9
6 327 146-1 | 44-0 |2-1 || 1-0 |0-5 8 9:—:—] 10-0
if 328 || 45-6 | 43-5 | 2-1 ||0-6 | 0-6 8 9:—:— 9-8
8 331 || 45-1 | 42-9 | 2-2 || 0-7 |0-2 7 \|—:10:— 7-0
9 329 | 42-1 | 40-7 | 1-4 ||0-3 | 0-0 2 7:—:— 7-0
10 334 || 42-7 141-9 |0-8 || 0-2 | 0-0 2 10-0
11 331 ||42.7 |42-1 |0-6 || 0-1 | 0-0 10-0
12 324 || 42-9 | 43-3 |0-6 || 0-0 | 0-0 10-0
13 || 29-323 ||42.9 | 42-4 |0-5 ||0-1 |0-0 4 9-9
14 326 || 42-7 |42-2 |0-5 ||0-1 | 0-0 10-0
15 324 | 41-3 | 41-0 |0-3 ||0-1 |0-0 8 9-5
16 327 ||41-7 | 41-2 |0-5 || 0-0 |0-0 7 10-0
V7 332 41-8 | 41-3 |0-5 ||0-1 | 0-0 7 \||—: 4:— 9-9
18 342 | 41-6 |41-0 |0-6 || 0-1 | 0-0 3 4: 1:— 9-8
19 352 || 44-0 |42-8 | 1-2 ||0-1 | 0-0 4 }|—: 6:— 9-9
20 363 || 44-6 | 42-9 | 1-7 ||0-2 |0-0 4}}—: 4:— 9-5
21 369 || 46-1 | 43-2 | 2-9 {10-2 | 0-1 7 6: 8:—| 6-5
22 375 1148-6 | 44-8 |3-8 || 0-3 | 0.2 6 7:—i— 9-8
23 386 || 48-3 | 44-3 |4-0 || 0-4 | 0-4 4 10-0
10 O 399 ||48-7 | 44-7 |4-0 || 0-5 |0-5 7 6:—:—|| 10-0
1 405 || 47-6 | 43-7 | 3-9 ||0-6 | 0-6 5 6:—:—| 10:0
2 415 || 47-4 | 43-8 |3-6 ||0-7 |0-3 5 4:—:—]| 10-0
3 420 ||49-0 | 44-6 | 4-4 || 0-6 | 0-3 6 10-0
4 4.27 ||47-7 | 44-0 13-7 ||0-5 |0-3 4 4:—:— 9-5
5 434 | 47-0 | 43-5 | 3-5 ||0-4 |0-3 5 4:—:— 9-5
6 440 || 48-0 | 44-3 |3-7 110-3 |0-3 4 4:—:— 8-5
7 462 || 47-3 | 43-7 | 3-6 ||0-2 |0-2 3 2:—:—| 7-0
8 483 || 46-8 | 43-3 |3-5 |/0-2 |0-1 3 1-5.
9 500 | 43-0 |41-3 | 1-7 ||0-1 |0-1 2 1-0
10 527 || 41-8 | 40-2 |1-6 || 0-1 | 0-1 2 9:8
11 533 || 42-4 |40-8 | 1-6 ||0-3 |0-1 3 9-9
12 538 || 42-3 | 40-7 | 1-6 ||0-1 |0-0 | 30 10-0
11 13 29-529 57-3 | 48-7 | 8-6 ||0-5 | 0-1 | 20 || —: 24:—
13 || 29-410 | 45-9 | 45-0 |0-9 || 1-9 |0-8 | 21 1-5
14 409 ||\47-3 | 45-9 | 1-4 ||0-7 |0-1 | 23 8-0
15 411 || 45-2 | 43-0 | 2-2 ||0-6 |0-2 | 21 2-0
16 415 || 42-2 | 40-5 | 1-7 || 0-4 |0-2 | 22 2-0
17 420 || 42-3 | 40-3 | 2-0 ||0-5 | 0-2 | 22 2-0
18 435 ||44-9 | 42-0 | 2-9 ||0-5 | 0-5 | 24 0-8
Species of Clouds and Meteorological Remarks. —
Scud and cirro-strati.
Overcast ; drops of rain.
Thick scud and cirro-strati.
Id.
Id.
Thin misty scud ; cirro-strati; cirro-cumulo-strati,
Id.
igh: rain!
Id. ; cirro-strati ; rain?
IGS id.
Thin seud ; cirro-cumulo-strati; cirro-strati; cirri.
Seud ; id.
las loose cumuli; cirro-strati.
lise id.5 id. ; cirri.
id’: 1d. 3 id.3 id.; cumuli
Thin seud ; loose cumuli; cirro-strati; cirri.
Seud ; cirro-strati; rain?
Id. ; loose cumuli; cirro-strati; shower lately.
Id. 5 id. ; id.
Cir.-cum-str. ; loose cum.; cir.-str. and cum.-str. to E
Scud ; cirro-strati; cirro-cumulo-strati.
Loose misty scud ; cirro-strati; shower”?
Seud; rain?
Id.
Seud.
Id.; rain?
Id. ; cirro-strati.
ites id.
Dense mass of cirro-strati.
Cirro-stratous scud ; cirro-cumuli; cirro-strati.
Cirro-cumulo-strati ; loose cumuli to E.
Ge scud and cumuli on horizon.
Seud ; loose cumuli. S
des id), s cir.-str. scud ; cirro-cum.-str,
Td id. ; id.
Id.; thick cirro-stratous scud and cirro-strati. —
ies id.
Id.; loose cumuli; dense cirro-strati.
IGS mob id. and cir.-cum.
tds neers ides id.
Id. ; adr Td. id
Id. ; id. ; 1d: id.
Tide ee id. = cirro-strati. :
Cumuli; cjrro-strati ; cirrous haze on ho
Cirro- peri: ; haze on horizon.
Seud ; cirro-cumuli,
Thick scud and cirro-strati.
Id.
Sunday—a. m. Cumuli and cumulo-strati; cirri and
thick cirro-strati at 7}.
Cirro-strati to N. and W.; very faint auroral light i.
Scud ; cirro-strati on horizon; lightish to N. @
Seud nad cirro-strati on horizon.
Cirro-stratous scud and cirro-strati on EK. horizon.
Id.
Masses of cirro-strati and scud ; cumulo-strati to :
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, S.=16, W. = 24,
motion of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
HourLy METEOROLOGICAL OBSERVATIONS, May 11—14, 1845. 185
THERMOMETERS. WIND. Glenda:
ee ae Se.:C.-8.:Ci,| Sky
eae. Dry. | wet. | Die Aaa Pe ee clouded: Species of Clouds and Meteorological Remarks.
14,| 10™.
in. 2 3 $ lbs, lbs pt pt. pt. pt. 0—10. k
29-450 || 45-9 | 42-6f/ 3-3 | 0-6 | 0-3 | 24 | — :—:20] 0-8 | Woolly cirri; cirro-strati; cumulo-strati. Oo}
0 444 || 48-0 | 43-6 | 4-4 | 0-8 |0-7 | 26 | 28:—:20| 4-0 || Patches of seud; cirri; cirro-strati ; cumulo-strati. O}
1 448 || 50-0 | 44-31) 5-7 | 1-0 | 1-0 | 28 || 30:—:—] 5-0 Ilel, 5 10s id. ; id. (}
2 455 || 52-0 | 45-3 | 6-7 | 1-3 + 1-7 | 30 || 30:—:—}] 6-0 || Send and loose cumuli; cirri; cirro-strati; cum.-str. Of
23 480 || 52-2 | 46-0 | 6-2 | 1-3 | 0-6 | 30 || 30:—:—| 8-5 || As before. (s)
0 493 || 53-4 |46-0 | 7-4 || 1-7 | 0-8 | 30 | 30:—-:—]) 7-5 Id. a)
J 495 || 54-4 |47-0 | 7-4 || 1-3 | 1-1 | 30 | 29:—:— 5:5 Id. Oo}
2 506 || 56-0 | 48-0 | 8-0 | 1-7 | 0-8 | 31 || 29:—:— 9-0 Id.; cumulo-strati to 8. ; electric-looking. (o)
ae 554 || 47-2 | 45-9 | 1-3 | 2-6 |0-7 | 0 ||80:—:—j]) 9-0 || Scud; cum. ; cum.-str. ; cir.-str. ; cirrous mass ; showers.*
4 568 || 50-2 | 46-4 | 3-8 || 2-2 | 3-1 0 | 30:—:—] 9-8 Id.; cumulo-strati; cirro-strati; rain*
+45 574 || 50-7 | 46-6 | 4-1 || 2-1 |0-2 | 30 || 30:—:—|| 6-0 lich, = id. ; id.
6 586 || 54-3 | 49-6 |4-7 || 0-2 |0-1 | 30 5:5 Id. ; watery cirro-strati; cumulo-strati; drops of rain.
7 612 || 46-1 | 45-77|/0-4 | 1-3 |0-1 | 0 ||/31:—:—] 6-5 | Scud and nimbi to S.; cum.-str. to N. and E.; cir.-str.*
8 643 || 48-0 | 46.0]] 2-0 || 0-2 |0-2 | 29 || 31:—:— J 8-5 || Thick scud and cirro-strati; rain”?
9 659 || 47-6 | 44-4 |3-2 | 0-5 10-5 | 31 || —:29:—|| 9-5 || Cirro-stratous seud.
0 || 689 || 46-8 | 44.8 |2-0 | 0-7 |0-6 | 0 9-8 Id.
il 707 | 45-4 | 43-5 | 1-9 | 0-5 |0-2 | 30 9-8 aly
12 719 || 45-2 |43.8 | 1-4 ||0-1 |0-1 | 28 9-0 Id. }
3 || 29-736 | 42-9 | 41-4 | 1-5 || 0-1 |0-2 | 28 1-5 || Cirro-stratous scud.
4 || 766 || 43-0 | 41.2 | 1-8 | 0-4 | 0-2 | 30 1:5 | Id.
783 || 42-3 | 40-0 | 2-3 ||0-4 |0-4 | 29 1:5 || Seud ; cirro-strati.
796 || 40-9 | 38-9 | 2-0 || 0-4 |0-2 | 27 2-0 lil, 3 id.
812 || 41-7 | 39-2}| 2-5 | 0-4 |0-3 | 30 ||) —:—:28]| 4-0 || Woolly cirri, radiating from NW. and SE, cirro-strati.
829 || 44-0 | 41-0 | 3-0 ||0-4 |0-7 | 28 || —:—:28]| 8-0 iiels s id.
845 || 46-4 | 42-4 | 4-0 0-9 |0-5 | 29 || —: 28:28] 7-0 || Loose woolly cirro-strati and cirri.
865 || 48-9 | 44-0 |4-9 11-3 |0-5 | 29 || —:—+28 6-5 || Woolly cirri and cirro-strati ; patches of cumuli. ©
890 || 49-8 | 44-7) 5-1 || 1-9 |0-8 | 30 || 30:—:—|| 5-0 || Loose cumuli; cirro-strati to S. ©
903 || 51-1 | 45-5 | 5-6 | 1-7 | 1-0 0 ||30:—:—|| 8.0 Td.
923 || 52-9 | 46-4 |6-5 || 2.0 | 1-4 0 || 30 :—:— 9-0 Td.
942 || 52-6 | 45-6 | 7-0 ||2.:0 |0-7 | 0 ||\380:—:—]| 9.7 Id. ; thick cirro-stratous scud.
959 || 52-9 | 47-1 | 5-8 | 1-6 | 0-6 3 /31:—:—|| 9.9 liek, 2 id.
975 || 52-5 | 47-5 | 5-0 11-3 | 0-6 3 0:—:—| 9.9 lick 2 cirro-cumulo-strati.
29-986 || 53-7 | 48-3 | 5-4 ||0-7 10-8 3 || O:—:—] 9-0 oa id. (2)
30-002 || 54-1 | 48-9 | 5-2 || 1-0 | 0-8 3 || O:—:—|| 8-5 Id. ; id. ra)
014 | 53-3 | 47-7 |5-6 || 1-2 |0-8 § 2: 0:—|| 5-0 dies id. 0)
028 || 51-8 |46-5f) 5-3 || 0-8 | 0-7 3 3:—:—|| 2-5 Id. ; cirro-strati; cirri. ©
055 || 50-0 | 44.9 | 5-1 || 0-6 | 0-4 2 2-0 || Loose seud; cumuli on horizon ; woolly cirri. ©
078 || 47-8 | 43-8 | 4-0 |0-3 |0-1 2 2-0 || Patches of scud; cirro-strati ; id. ©
100 || 44-0 | 42.3]) 1-7 | 0-1 |0-1 3 2:0 || Cumuli; cirro-strati; woolly and linear cirri. »))
111 || 40-8 | 40-0 | 0-8 || 0-1 | 0-1 1 2-0 || Cirro-strati; cirri; cirrous haze ; small lunar corona. ))}
119 || 41-2 | 39-7 | 1-5 || 0-1 |0-0 | 30 1:0 || Cirri and cirro-strati. ‘ y
131 || 36-8 | 36-7 | 0-1 | 0-0 | 0-0 0-2 Id.
3 || 30-137 || 35-3 | 35-3 |0-0 || 0-2 |0-0 | 16 0-2 || Cirri and cirro-strati.
141 || 33-1 | 33-1 |0-0 || 0-0 | 0-0 0-5 Id.
148 || 33-3 | 33-3 | 0-0 | 0-0 | 0-0 2:0 Id.
154 || 33-1 | 33-1 |0-0 || 0-0 | 0-0 3:0 Id.
150 || 35-3 | 34-7 |0-6 || 0-2 |0-0 3:5 Td.
160 || 36-6 | 36-2 | 0-4 ||0-1 |0-0 | 20 1-5 Id. [parhelia. ©
161 || 42-3 | 40-3 | 2-0 || 0-0 | 0-0 —:—:3l 7-5 || Woolly cirri; cirro-strati; cirrous mass; solar halo and
161 || 46-8 | 44-6 | 2.2 ||0-1 |0-0 | 16 || —:—:31 8:5 Id.; id.
152 || 52-3 | 48-2 |4-1 | 0-0 | 0-0 10-0 || Milky cirrous haze over the sky ; cirro-strati; halo. ©
142 || 57-2 | 50-3 |6-9 | 0-1 | 0-0 10-0 || Cirro-stratous scud ; cumuli; cum.-str.; cirrous mass. ©
136 || 53-9 | 48-2 |5-7 || 0-2 |0-3 | 296 || 24:—:—|| 10-0 || Scud; cumuli; cumulo-strati; cirrous mass.
132 || 56-0 | 50-0 | 6-0 | 0.4 | 0-3 | 24 | 24:—:—|| 10-0 Id.; cumulo-strati; cirrous mass.
134 || 50-8 | 47-4 | 3-4 | 0-4 |0-5 | 25 10-0 Id.; dense cirrous mass; rain!
2 138 || 50-3 |47-4 |2-9 ||0-4 10-3 | 24 10-0 Id. ; 1658 - id.
| MAG, AND MET. oss. 1845.
| The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.=8,8.= 16, W.= 24. The
otions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
May 12¢ 3%, Twoclaps of thunder heard. 64 45m, Shower®, with bright double rainbow. 6» 50™—7» 0™, Two peals of thunder to SW.
_ p, Loose nimbi, spreading out in some places into masses of watery cirro-stratus ; slate-blue homogeneous clouds to SSW.
* See additional Meteorological Notes after the Hourly Meteorological Observations.
3A
186 HovurLy METEOROLOGICAL OBSERVATIONS, May 14—16, 1845.
| THERMOMETERS. WIND.
ao Clouds,
sie Bano. Ninenenn Se. :C.-s.:Ci.|| Sky : = :
sex | ees | ay RENOIR rere Eline: moving Miandad Species of Clouds and Meteorological Remarks.
; rom
| | 1h, | 10m,
dae i. in. } 5 2 i Ibs. | lbs. pt. || pt. pt. pt. 0—10.
14 3 | 30-126 | 51-6 | 49-2 |2-4 10-3 |0-1 | 24 ||} 24:—-:—J| 10-0 || Loose scud ; dense cirrous mass; rain!
4 117 | 51-3 |48-7 |2-6 0-7 | 0-2 | 24 || 24:—-:—]| 10-0 Idi; id. ; id.
5 | 098 51-0 | 48-7 | 2-3 10-3 |0-2 | 20 || 24:—:—|| 10-0 || Seud; id. rain?
6 085 || 51-0 | 49-6 | 1-4 || 0-3 |0-3 | 19 || 24:—:—¥) 10-0 Id.; rain!
7 O81 | 50-8 | 48-8 | 2-0 | 0-3 | 0-3 | 22 || 24:—:—| 10-0 Id. ; mass of cirro-strati.
8 082 || 50-2 | 48-3 | 1-9 | 0-7 |0-2 | 23 || 25:—:—| 10-0 els id.
9} 083 |49-6 |48-3 | 1-3 ] 0-4 [0-1 | 20 || 25:—:—|], 10-0 || Ia; id.
10° 082 | 49-2 |48-2 | 1-0 |0-1 |0-0 | 20 |} 25:31:—|| 9-9 Id. ; cirro-stratous scud.
11} 079 | 46-9 | 46-4 |0-5 0-0 |0-0 | 20 |}27:—:—} 3-5 Id., moving quickly; cir.-str. on hor.; faint lun. cor.
12| 077 ||45-7 | 45-4 |0-3 }0-0 |0-0 | 24 0-5 || Masses of scud and cirro-strati.
13 | 30-078 | 46-0 |45-6 | 0-4 | 0-1 |0-0 | 24 7-5 || Cirro-stratous seud.
14) 081 |46-9 | 46-4 |0-5 || 0-1 | 0-0 | 24 9-0 Id.
15 079 | 46:8 | 46-4 |0-4 0-0 |0-:0 | 6 4-5 || Seud; loose cum. ; cirro-strati; cirri; cirrous haz
16| 074 | 44-6 |44-4 |0-2 | 0.0 |0-0 | 16 |29:—:—|| 9-0 || Id.; cirri; cirro-strati.
17 | 082 |43-0 |43-0 |0-0 0-0 | 0-0 | 20 || 30: O: O 8-0 Id. to E.; woolly cir.; cir.-cum. ; cir,-str, ; mist on the groun
18| 089 | 45-8 |45-6 |0-2 | 0-0 |0-0 | 24 ||—:31:—]] 9-8 || Cirro-stratous scud ; loose ena to E.
19] 092 49-1 |48-3 |0-8 | 0-0 |0-0 | 16 || —: 0:—|| 10-05 || Cir.-cum. scud ; undulated cir.-str. and cirro-cumul
20 | 094 ||52-4 | 51-0 | 1-4 | 0-0 | 0-0 —: 0:—/| 10-0 || Sheets of cirro-stratus. ,
21) 099 || 55-8 | 54-0 | 2-8 10-1 |0-0 | 15 10-0 Id.
22 | 097 | 58-0 | 55-2 | 2-8 || 0.1 | 0-2 2 10-0 || Loose scud ; cirro-strati; cirrous mass.
23 | 082 || 62-0 | 57-3 |4-7 | 0-3 |0-3 | 27 || —:31:-—]| 10-0 || Cirro-stratous scud ; cirro-strati; cirrous mass,
15 0| 081 || 62-6 | 56-8 | 5-8 || 0-6 | 0-7 | 29 ||31:—:—J| 10-0 || Patches of scud ; sheets of cirro-stratus.
1} 082 || 63-0 |57-3 | 5-7 |0-8 |0-7 | 30 ||/31:—:—]| 9-8 || Loose cum.; cum.-str, ; cir.-cum.-str. ; cirri.
2| 078 | 65-3 |58-3 |7-0 | 0-9 | 1-1 | 30 |31:—:—]) 9-2 ld id.; woolly and mottled cirri. —
3] 074 || 65-4 |58-4 |7-0 10-9 |0-5 | 31 ||] 31:—:—|]| 9-5 Id. ; id. ; id.
4 066 | 67-2 |59-7 |7-5 10-5 |0-6 | 2 ||}30:—:—|]| 9-5 id: 5 id.
5 067 || 64-4 | 58-1 |6-3 | 0-6 | 0-5 4 || 29 3.311 :—|- 8:0 IGE id.; _ cirro-stratous seud ; cirri.
6 | 084 | 58-0 | 54-74| 3-3 || 0-9 | 0-4 5 || —:30:—|| 8-0 || Cirro-stratous seud ; cirro-cumulo-strati.
7 | 102 | 55-0 | 52-7 | 2-3 0-5 | 0-3 6 || 4:30:—|| 9-8 || Scud; cirro-stratous scud.
8 109 || 53-7 |52-0 | 1-7 || 0-3 | 0-2 4 || 4:30:—1 10-0 Td: id.
9) 111 || 52-7 | 51-34) 1-4 | 0-2 | 0-1 4:31: —]| 9-0 Id.; cirro-stratous scud ; cir.-cum.-str. ; cirri.
10 111 ||52-5 | 51-3 | 1-2 0-1 | 0-0 10-0 || Cirro-stratous scud, nearly homogeneous. :
1 113 || 52-3 | 51-2 | 1-1 | 0-0 | 0-0 10-0 || As before.
12 112 || 52-1 | 51-1 | 1-0 || 0-0 | 0-0 | 20 10-0 Id.
13 || 30-112 || 52-0 | 51-2 |0-8 |] 0-0 | 0-0 10-0 || As before.
14 107 || 52-0 | 50-9 | 1-1 || 0-0 | 0-0 | 20 10-0 Id. nearly homogeneous.
15 102 ||50-7 | 49-2 | 1-5 || 0-2 | 0-1 | 21- 9-5 || Scud ; cirro-stratous scud ; cirro-strati.
16 102 || 48-9 | 47-9 | 1-0 || 0-2 | 0-1 | 22 6:0 Id. ; mele ide citi. am
il7/ 098 || 48-3 | 47-0 | 1-3 0-2 |0-2 | 23 4-0 | Cum.-str. to W.; bank of cirro-stratus to S. ; cirri
18 102 || 48-8 | 47-44) 1-4 ] 0-3 |0-2 | 23 || —:—: 0 6-0 || Woolly cir. ; cirro-strati; cumuli ; cumulo-strati.
19 103 || 51-3 148°7 || 2:6 OS 0-3" |) 24°) — - 31 + — 8-0 || Varieties of cirro-strati; cum.-str. to NW.; loose cum. to SE.
20 098 || 52-1 |49-0 |3-1 10-5 |0-4 | 24 ||— =: 30: 30 7:0 Woolly cir. and cir.-str.; cir.-cum.; small cum.-str.; cum, to SV
21 105 1135-9 151 8] AST MWOssniiGsanl, Con) —— 220 -— 9-0 Loose cir.-str. or cir.-cum.-str., mixed with cum, ; cir, haze. —
22 | 084 || 57-3 | 52-8 | 4-5 |10-3 | 0-4 | 26 || 28: 30:30 6-5 || Patches of cum.; woolly cirri ; cir.-str. ; cir.-cumuli.
23 O81 || 60-1 | 55-1 |5-0 | 0-4 |0-3 | 26 || 25:28:—|| 7-5 Id. ; cirro-cumulo-strati ; cirro-strati.
16 0 057 || 62-6 | 56-0 | 6-6 ||0-7 |0-5 | 26 || 26:—:—J]| 8-0 || Loose cumuli; cirro-stratous scud ; cirro-strati.
1 044 || 64-0 | 56-5 |7-5 10-6 |0-5 | 28 || 26:29:—]| 9-5 Id. ; cirro-strati.
2 025 ||65-0 | 58-0 | 7-0 || 1-2 |0-4 | 26 || 26: 29: — 9-5 Tass id., becoming more homg
3 014 || 64-8 | 57-7 | 7-1 || 1-2 | 1-4 | 28 ||29:29:—| 7-0 Id. ; id.; cir.-cum.-str.; wooll
4 || 30-005 || 64-9 | 57-8 | 7-1 | 1-0 |0-5 | 29 || 28 :—:— 8-0 Tay id.; cirri; cirrous haze.
5 || 29-995 || 63-2 | 55-8 |7-4 | 1-1 |0-8 | 27 || 28:—:—|| 9-2 || ns (Be cumulo- pheataes ; cirrous haze; halo. |
6 993 | 60-3 | 54-1f/6-2 || 1-1 {0-7 | 26 ||} 27:—:—]| 6-0 | Id. ; id. ; cirro-strati ; ‘woolly ¢i
7 992 ||56-0 | 51-9 |4-1 ||0-7 |} 1-3. | 28 || —:30:— 9-0 | Cirro-stratous scud ; Geren ; woolly cirri. :
8 989 || 53-8 |50-3 |3-5 || 1-0 |0-7 | 28 || —: 0:—|| 9-9 || Cirro-cumulo-strati ; id. ; id.
9 997 || 52-0 |47-8]| 4.2 ||0-7 | 0-1 | 24 10-0 | Cirro-stratous scud and cirrous mass ; small corona
10 980 || 50-8 |47-6 | 3-2 10-6 10-3 | 24 9-0 || Cirro-strati; woolly cirri; cirrous haze; lunar co: Al
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.=8, 8. = 16, W.= 24, ‘The |
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
ott. BaRo-
ean || METER
me. || at 32°.
hn: || in.
111 || 29-978
12 966
13 || 29-961
14 947
15 924
16 923
117 921
18 922
19 937
20 958
21 957
22 968
23 965
0 978
1 958
2 969
3 961
4 958
5 956
6 959
7 963
8 973
9 982
10 982
11 982
j12 || 971
|232 29-813
ca a a
DI Som a eatin iene eyes eae
ce a
Pr
Hourty METEOROLOGICAL OBSERVATIONS, May 16—19, 1845.
THERMOMETERS. |!
Dry. | Wet. | Diff.
48-0
48-1
48-7
49-1
49-3
49-3
49.4
49.8
Maximum
force in
yh,
WIND.
10™,
ow
SCORN NEFNNF KEK WWNnNN OS
(JU)
WNNWWW NW NYONKREPNNNOKFONWREKE NONKFNWWN O&O
KBeee woOmNwWANOANAREwWAdHOnDON
SSSS SOSSH SEH EMH SS NEES
Clouds,
Se. :C.-s. : Ci.,
moving
from
30:
oo Cw
oo
ccoosccno!l a)
WNNDNH eee
3) 2
Sky
clouded.
187
Species of Clouds and Meteorological Remarks.
Cirro-stratous scud; cirro-strati; cirrous haze.
Id.; id. ; id.
Id. ; id.
Id. ; id.
Id. ; id.; drops of rain lately.
Id.; id.
Id. ; id.
Scud; cir.-str.scud; dense cir.-str. ; slight shower
Id. ; id. ; rain! [lately.
Id.; cirrous mass.
Loose cumulous scud ; fleecy cirro-cumuli ; cirri. (2)
al id. ; id. (2)
Woolly cirro-cumulo-strati ; cirro-strati ; id. (S)
Loose cumulous scud ; cirro-cumulo-strati; id. e
Id. ; 10.45 id. e
Id. ; id.; cum.; id. (s)
IGE Idee eae ad. ©
Id. ; cirro-strati ; cirri. ‘S)
Loose cumuli ; id. ; id. ©
Cirro-stratous scud ; cirri. ©
Cirro-cumulo-strati ; cirri, radiating from NW. (0)
Id. Ee}
Id. ; cirri; cirrous haze. »)
Tae; id. ; id. »))
Cirro-strati ; cirri. DI
Id., id. »))
t
Sunday—Thick scud ; a continued succession of ligh
showers throughout the day.
Scud ; cirro-strati. »)
Id. ; id. -
Id. ; id.
Id. and cirro-cumulo-strati.
Id.; cirro-strati; drops of rain.
Cir.-cum.-str.; wool.cir. radiating from NNW. ; cir.-str. Q}
Scud ; cirro-stratous scud ; cirro-strati and cirri.
Id.; loose cumuli; cirri to N.
Id; ides; cir.-cum.-str.; cirri; cir. haze.
lee id. ; cir.-str. ; thick cir.-cum.-strati.
ds; id. ; ide ® id.
Id. ; id. ; id. ; id,
lle iden cirro-strati. r=)
dy; id. ; id.
iol 2 id. ; cirro-cumulo-strati. (2)
Loose cumuli; cirro-cumulo-strati. (=)
Id. ; thick cirro-strati.
Scud ; id.
Id. ; id.
ales id.
lok 3 id. ; drops of rain.
lida id. ; rain”
Id.
Id.
Seud and loose cumuli.
Seud and cirro-stratous scud 2
Id.
| | The direction of the wind is indicated by the number of the point of the compass, reckoning N. — 0, H. = 8,S.= 16, W.= 24. The
otions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Observation made at 19% 8m,
"May 184 21. Observation made at 21) 5m,
-
May 184 195,
188 HovurLy METEOROLOGICAL OBSERVATIONS, May 19—22, 1845.
THERMOMETERS. WIND.
Gott. || Baro- Ro aie a CLO re
Mean || METER Maximum Se. : Cs Ci, 1 ae A Species of Clouds and Meteorological Remarks. —
Time. || at 32°. || Dry. | Wet. | Diff.|| force in [Fyrom ig mi clouded.
1», ,10™,
d. h in. a 3 2 Ibs. | Ibs. | pt. || pt- pt pt 0—10
19 17|| 29-769 || 42-2 | 41-0 | 1-2 |0-1 | 0-0 ok 8.2 || Cirro-stratous scud.
18 778 ||44-1 | 42-6 |1-5 0-1 |0-0 | 31 || 2: 1:—|| 9-5 Tees cirro-cumulo-strati.
19 790° || 45-2 |43-3' | 1-9 0-1 10:3") O—=: 2:— 1 100 Id.
20 778 | 46-2"|43:3°/2-4 0.2500 |} 1 |: 2: —| 10-0 Id.
21 786 ||46-5 | 43-8 | 2-7 |/0-3 [0-2 | 2 || 2:—:—|| 10-0 || Thick scud; drops of rain.
22 783 ||48-7 | 45-2 13-5 0-7 |0-7 | 2 | 2:—:—]] 10-0 Id.
23 770 || 49-2 | 46-4 | 2-8 10.5 | 0-2 0 ||—: 1:—J| 10-0 || Cirro-stratous scud ; cirrous mass.
20 O 761 ||48-7 |45-0 |3-7 10-5 |0-3 | 2]|—: 0:—l| 9.9- Id. ; id.
1 747 ||50-7 |46-2 |4-5 |0-7 10-4] 2] 0: 1:—]] 9-9 Id: cirro-cumulo-strati.
2 738 ||51-0 | 46-4 |46 10-9 |0-7] 1] 0: 1:—|| 9-9 nk id.
3 732 ||51-0 | 47-2 |3-8 | 1-1 |0-6 1 oO” oo == 9-0 || Loose cumuli; cirro-cumulo-strati; cirri.
4 723 || 52-2 |47-3 |4-9 1-0 |0-6 | 5 131:30:—|| 9-0 Id; id. id.
5 713 || 51-9 [47-2 |4-7 ]1-2 |1-0] 5 | 0:30:—|| 8-5 || Scud; loose cumuli; cirri. ,
6 713 ||49-4 | 45-1 |4-3 | 1-0 |0-9 D) Oy aot ioe ee 9.8 Id.; loose cumuli; cir.-str. seud ; cir.-str. ; cir,
7 715 47-8 | 45.4 }2.4 10-7 |0-5 | 21) 2:31:—]| 9-5 || Id.; id. ; id. ; id.
8 708 1146-6 | 43-8 | 2-8 || 1.4 | 0.4 2 2 3 () 5-0 Id.; cirro-cumulo-strati; mottled cirri.
9 718 || 46-3 | 44-2 |2-1 |0-7'10-3 | 3 || 3:31:—| 9-8 || Id; id. ; cirro-strati ; cirri.
10 Tlge WAdewe 43007 O-seKOrnt) Teal =n zane
11 710 | 44-6 | 43-0 |1-6 0-1 |0-1 | 2 10-0 || Thick seud.
12 707 || 45-0 | 43-2 |1-8 10-6 10-5 | 2 10-0 Id.
13 || 29-699 || 44-7 | 42-8 11-9 0-7 |0-5 | 2 10-0. || Thick seud.
14 700 ||44-7 | 42.4 |2.3 11-0 10-4 | 3 10-0 Id.
15 698 || 44-2 142.3 11-9 10-9 |0-3} 3 10-0 Id.
16 695 || 43-9 | 42-3 |1-6 ||1-0 |0-6 | 3 || 2:—:—| 10-0 Id
17 695 | 43-5 | 41-8 |1-7 11-0 |0-5 | 3.) 3:—:—ll 10-0 Id
18 703 || 43-7 | 49-1 |1-6 || 1-1 |1-0 | 4 || 2:—:—|| 10.0 Id
19 714 ||44-9 |43.2 |1-7 10-8 }0-7 | 4 || 3:—:—l]| 10-0 Id.
20 716 ||45-0 | 43-1 |1-9 0-7 |0-4 | 3 || 2:—:—l] 10-0 Id
21 726 || 45-7 |44-0 |1-7 |0-6 |0-6 | 4 10-0 Id
22 726 || 46-4 |44-5 |1-9 | 0-6 |0-9 | 3 || 3:—:—|| 10-0 Id.
93 708 ||49-6 146-7 |2-9 10-8 |0-8 2 ie ee g.5 || Scud and loose cumuli; cirri.
21 O 706) || 50-0 | 4727, 3-30 |le.| Melt ten 2) || 02 — > —— ||| O20 id. ; tufts of cirri.
1 695 || 52-3 | 48:3 14-0 | 1-3:10-9.) 2 9:—:—]|- 9.0 Td: ; cirri.
2 691 ||53-0 | 48-7 [4-3 11-0 |0-8 | 3 || 2: 0:—|| 9.9 || Seud, in two currents.
3 683 ||51-5 |47-5 14.0 11-1 10-9 | 4 || 2: O0:—ll 9-5 Id.
4 667 ||54-0 |49-1 |4-9 11-0 |1-0 3 Diane Se 9.5 || Seud; cirrous haze; solar halo.
5 659 || 52-9 | 48.4 14.5 11-4 11-3 2 Ne a ee 9.9 dee = id., thicker, ; halo disappearing.
6 GEN SOES saeval Sole lidewoneles 3 a oe 9.3 Id.; thick cirri; cirro-strati and cirrous haze.
"7 663 || 49-6 | 47-0 |2-6 || 1-4 10-6 9 Daa 8 9.9 Id.; woolly cirri; cirro-strati; cirrous haze.
8 670 || 48-1 146-0 | 2-1 |11-3 | 1-2 3 Ore OO Id. ; cirri and cirrous haze.
9 675 || 46:7) 44.6./2-1 '9.111-9 | 3.1) Ds-se—|) 10.0 |) id
10 683 || 46-0 | 44-2 |1-8 || 1-2 |1-2 | 2 10-0 || Id.
11 695 | 45-5 | 44.0 |1-5 12-0 11-3 | 4 10-0 || Id.; _—_cirro-strati.
12 694 || 45-0 |43-8 |1-2 |/1.3 10-6] 4 10-0 || Id.; id.
13 || 29-690 || 44-9 | 43-2 11-7 |/1-2 |0-9+ 2 10-0 || Scud.; cirro-strati.
14 688 || 44-4 |43-2 11.2 11-2 |0.4 | 2 10:0) |) las; id. ; drops of rain.
15 682 || 44-3 | 42-7 |1-6 1-7 |1-6] 2 10-0 || Id.; id.; id.
16 683 | 44-2 | 42-6 }1-6 12-0 |1-4] 2 || 2:—:—|! 10-0 | Id; id
7 697 || 44-2 | 42-4 11-8 |/1-2 |0-6 | 2 || 2:—:—|]| 10-0 || Id.; id
1s 697 | 44-5 |42-4 |2-1 11-2 |0-8 | 3 || 2:—:—| 10-0 | Id.; id.
19 700 |\44-3 | 42-9 | 1-4 | 1-5 | 0-5 3) 9.-—-:—|| 10-0 || Thick scud and cirro-strati.
20 704 45-4 |.43-3°| 9-1 11.2 |0e7 | 3°) S725 221) 10.0 Id. 9
21 714 ||46-3 144-4 |1-9 | 1.3 | 1.2 3 Av secmenbae 9.9 || Smoky seud ; cirro-cumulo-strati. id
22 TVA 46% | 45-6.) Lode dese eletl bwlleedan = =| Ses des id ; drizzle lately. —
23 717 ||\48-3 145-1 13-2 11-5 11-3 | 4 10-0 || Thick seud. 5
22 0 724 \|48-7 |45-7 |3-0 1-5 11-3 | 3']) 3:—:—lIl 10-0 Id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H. = 8, 8S. =16, W.= 24. 1
motions of the three strata of clouds, Sc. (scud), ©.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. j
HovurLty METEOROLOGICAL OBSERVATIONS, May 22—24, 1845. 189
THERMOMETERS. WIND.
Clouds,
is Saal Maximum Se.: C.-s.:Ci.,|| Sky
: ee PP dt te bathe ss ae moving _ |[clouded. Species of Clouds and Meteorological Remarks.
from
14, | 10™,
h. in. & i o Ibs. | Ibs. pt. pt.. pt. pt. 0—10.
1 || 29-727 || 47-7 | 45-0 | 2-7 || 1-3 | 0-7 ) 3:—:—/] 10-0 || Thick scud.
9 727 ||49-3 | 46-3 |3-0 || 0-8 | 0-5 4 10-0 Id.
3 723 ||51-3 |47-8 |3-5 || 1-4 |0-8 4 || 2: 4:—]|| 9-8 || Seud; cir.-cum.-str. ; cir.-str. scud; clouds broken. ©
4 721 || 50-0 | 46-6 | 3-4 || 1-2 | 0-7 4 | 3:—:—] 9-8 Id.; cirro-stratous scud. (=)
+5 719 || 49-6 | 46-2 | 3-4 || 1-5 | 0-7 6 4:—:— 9-8 Ile id. is)
6 721 || 48-9 | 46-0 | 2.9 || 1-1 | 0-6 4 3:—:— Id. ; id.
ri 723 ||47-0 | 44-4 | 2.6 || 0-7 | 0-6 4 i 95 Id. ; id.
8 730 || 45-6 |43-5 | 2.1 || 0-6 | 0-3 3 2:—:—/| 10-0 ids id.
9 741 || 44-3 | 42-8 |1-5 || 0-4 | 0-4 3 10-0 ViGh id.
0 752 || 43-4 | 42-3 | 1-1 || 0-4 | 0-2 4 10-0 Il. id.
{1 755 ||43-3 |42-5 |0-8 || 0-4 | 0-4 3 10-0 Id
12 761 || 43-4 | 42-5 |0.9 ||0-4 |0-5 | 3 10:0 || Id.; slight spit of rain.
3 || 29-755 || 43-2 | 42-3 |0-9 110-5 | 0:3 3 10-0 || Scud
14 750 || 42-9 | 42-3 |0-6 ||0-4 | 0-3 3 10-0 Id. ; fine rain®?”
5 746 || 42-7 | 42-2 |0-5 || 0-4 | 0-2 3 10-0 Id. ; id.
6 742 || 43-3 | 42-6 |0-7 ||0-3 |0-2 | 3 || 2:—:—]] 10-0 Td. ; fine rain”!
bd 743 || 43-7 | 42-4 | 1-3 ||0-5 | 0-4 3 i) 2:>——-——|! 10:0 lds id.
8 746 || 43-8 | 42-6 | 1-2 || 0-5 | 0-3 3 10-0 Id.
9 748 || 43-7 | 42-8 |0-9 ||0-4 |0-3 | 3 | 2:—:—| 10-0 Td.; fine rain™!
0) 753 || 44-8 | 43-0 | 1-8 || 0-4 | 0-4 3] 2:—:—l 10-0 Id. ; id.
1 750 || 46-9 | 44-7 | 2-2 ||0-5 |0-4 | 3 | 3:—:—J| 10-0 Id. ; dense cirro-strati.
2 732 || 48-7 145-8 | 2-9 || 0-4 | 0-4 3 10-0 Id. ; id.
3 746 || 50-2 | 46-7 |3-5 || 0-4 |0-1 4 || 2:—:—| 10-0 Ids; id.
0 742 || 52-2 |48-8 | 3-4 |/0-4 | 0-3 4 10-0 Id. ; id.
1 739 || 51-3 |48-2 |3-1 || 0-4 |0-6 Pe —:—| 10-0 JiGhye id.
vy) 738 ||51-0 | 47-5 |3-5 || 0-4 | 0-4 4 2:—:—] 10-0 Id. ; id.
3 741 || 50-0 | 47-2 | 2.8 || 0-5 |0-3 5 10-0 ides id,
\4 730 || 49-2 | 47-4 |1-8 || 0-4 | 0-4 4 | 2:—:—] 10-0 Id
15]| 731 ||47-8 | 45-0 | 2.8 |/0-5 |0-4| 4 || 3:—:—] 10-0 || Ia
} 728 ||48-0 | 45-7 |2-3 |10-5 | 0-2 3 3:—:—| 10-0 Id
\% 731 || 46-9 | 44-4 |2.5 || 0-4 |0-4 4 3:—:—| 10-0 Id.
| 735 || 46-1 | 44-1 | 2-0 || 0-4 | 0.3 3 | 3:—:—|| 10-0 Id
19] 745 | 45-6 | 43-6 |2.0 0-5 |o4 | 3 10-0 || Id
0 749 | 44.4 |43.0 | 1-4 |/0-5 |0-2] 1 10-0 || Id.
4 754 || 44-0 | 43-2 | 0-8 || 0-6 | 0-3 4 10-0 Id. ; light drizzle.
1D) 751 || 44-2 | 43-3 10-9 ||0-4 | 0-3 3 10-0 IGE id.
ls 29-760 || 44-2 | 43-2 | 1-0 ||0-4 |0-3 4 10-0 || Seud.
\4 757 || 44-2 |42-8 | 1-4 ||0-3 | 0-2 3) 10-0 Id.
15 772 || 44-2 | 42-6 |1-6 || 0-4 |0-1 4 10-0 Id.
16|| 770 | 44-0 | 42-4 |/1-6 |0-2 |0-2| 2 10-0 |) Id.
\7 779 || 43-8 | 42-4 | 1-4 || 0-2 |0-1 0 10-0 Id. ; cirro-stratous scud.
8 779 || 43-9 |42-5 | 1-4 || 0-4 | 0-4 4 || —: 3:—J|| 10-0 || Thick cirro-stratous scud.
9) 799 || 44.3 |43-2 |1-1 ||0-4 0-5 | 3 || 4:—:—J]| 10-0 |] Nearly uniform mass of scud.
1}, «810 || 44.2 | 43-0 | 1-2 ||0-4 {0-4 |} 3 || 4:—:—]] 10-0 Id.
PL) 813 || 44-3 | 43-3 | 1-0 || 0-5 | 0-3 4 10-0 Jd
2 800 || 46-0 | 44-3 | 1-7 ||0-6 | 0-5 4 4:—:—| 10-0 Id
3 803 ||46-3 | 44-4 |1-9 || 0-8 |0-6 3 4:—:—|| 10-0 Id
40. 791 || 47-5 |45-7 |1-8 ||0-7 |0-7 4 10-0 Id
‘it 784 || 48-0 |46-2 |1-8 ||0-7 |07 3 10-0 Id
|2 780 48-3 |46-4 |1-9 ||0-9 |0-7 4 2:—:—|| 10-0 Id
73) 778 || 48-4 |46-3 |2-1 ||0-9 |0.8 4 3:—:—| 10-0 Id
4 775 || 46-3 | 44-9 | 1-4 || 0-9 | 0-9 4 10-0 Id
5 771 | 46.2 |45-1 |1-1 1-0 |0-7| 6 10-0 Id
6 774 || 45-4 |44-0 | 1-4 |10-8 | 0-4 4 || 10-0 Id.
7 766 || 45-3 |44-0 |1-3 ||0-7 |0-4 | 3 10-0 Td
8|| 765 || 44-3 | 43-1 }1-2 110-6 '0-4 3 10-0 Id
__the direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E.= 8, S.=16, W.= 24. The
‘Mions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
fay 222 18%, Observations made at 18> 10™,
+
AG. AND MET. ozs. 1845. 3B
190 HovurLty METEOROLOGICAL OBSERVATIONS, May 24—27, 1845.
THERMOMETERS. WIND.
Soi eens Gee ae ad Sky
ree a rieani teeal e Gee “ie Bd movin ¢ "donde. Species of Clouds and Meteorological Remarks.
14, |10m
dh. in. © 3 i Ibs. | lbs. | pt. pt. pt. pt. 0—10.
24 9 | 29-769 || 44-0 | 43-0 |1-0 0-8 |0-4 | 3 10-0 || Nearly uniform mass of scud ; light drizzle.
10 764 || 43-6 | 42-5 | 1-1 || 0-5 | 0-2 3 10-0 Id.
11 764 ||43-3 | 42-4 |/0-9 || 0-4 | 0-2 2 10-0 Id. ; light drizzle.
12 759 ||43-0 | 42-4 | 0-6 || 0-4 | 0-2 3 10-0 Id.
231|| 29-703 || 47-0 | 44-6 | 2-4 0-5 |0-3 | 6 || 4:—:—|| 10-0 || Sunday—Nearly uniform mass of scud.
25 13 || 29-656 || 43-4 | 43-0 |0-4 ||0-5 |0-3 | 2 10-0 || Nearly uniform mass of scud.
14 655 || 43-3 | 41-7 [1-6 0-3 |0-2 | 4 10-0
15 630 || 43-0 | 41-8 | 1-2 0-4 |0-2 | 2 10-0 || Scud; slight drizzle.
16 628 || 42-8 | 42-1 |0-7 ]}0-2 |0-1 | 2 10-0 || Id.
iz 616 || 43-3 | 42-5 |0-8 | 0-2 |0-1 | 2 | 3:—:—]| 10-0 || Misty send; fine rain®?
18 597 | 43-6 | 43-0 | 0-6 || 0-4 |0-6 2 3:—:—] 10-0 Id.; cirro-stratous scud ; clouds breaking.
19 600 || 44:6 | 43-3 | 1-3 0-7 |0-6 | 3 | 3:—:—|| 10-0 Td. ; id.
20 590 || 45-2 | 43-8 | 1-4 || 1-2 | 1-7 4 || 3:—:—]| 10-0
21 596 | 44-9 |43-9 | 1-0 | 1-8 | 1-1 | 3 || 3:—:—|) 10-0 || Dense clouds, chiefly misty seud ; light drizzle.
22 602 || 45-3 | 44-0 | 1-3 | 1-1 | 0-6 3 |) 3:—:—|] 10-0 Id.
23 592 || 44-8 | 44-2 |0-6 | 1-2 |0-8 | 2] 3:—:—]) 10-0 IGE rain”
26 0 572 ||45-4 |44-2 |1-2 1-9 |1-6 |] 3 10-0 || Dense clouds.
1 565 || 44-8 | 44-0 | 0-8 || 2-5 | 1-2 4] 3:—:—] 10.0 Thal 2 rain!
2 547 || 45-2 |44-3 |0-9 | 1-7 |0-7 | 3 10-0 Id. ; rain”
3 541 || 45-0 | 44-1 | 0-9 | 2-3 | 1-8 2) 3:—:—| 10-0 ide rain®
4 541 || 44-7 | 44-4 | 0-3 | 1-7 | 1-3 2) 3:—:—|| 10-0 Id. ; rain!
5) 537 ||44-6 | 44-2 | 0-4 | 2-8 | 1-3 3 10-0 Tay; rain”
6 531 || 44-0 |43-8 | 0-2 | 1-8 | 1-1 3 10-0 || Dense scud; rain?
i 533 || 43-6 | 43-6 | 0-0 | 2-0 | 1-7 3 10-0 igh rain*
8 532 || 43-9 | 43-7 |0-2 2-0 {1-2 | 3 10-0 || Scotch mist, objects invisible at 1 mile ; rain? ?
9 536 || 44-3 | 44-1 | 0-2 |) 1-4 }1-1 3 10-0 Id. ;. _ rain?
10 551 || 44-8 | 44-6 |0-2 || 1-6 ]0-9 | 4 10-0 Td. 54, .raint
11 562 || 45-5 | 45-4 |0-1 | 1-4 | 0-7 4. 10-0 Ide 5, . ras?
12 584 || 45-6 | 45-4 | 0-2 |/0-8 | 0-6 4 10-0 Id. ; id.
13 || 29-592 || 45-5 | 45-3 |0-2 10-7 |0-3 | 4 10-0 || Scotch mist; rain®?
14 598 ||45-3 | 45-0 | 0-3 || 0-6 | 0-7 3 10-0 dss id.
15 622 || 45-0 | 44-7 | 0-3 || 0-8 | 0-5 6 10-0 ids: id.
16 635 || 44-7 | 44-3 |0-4 10-6 /0-1) 5 10-0 Id.
17 648 || 45-0 | 44-6 |0-4 ||0-4 |0-4 | 7 | 7:—:—|| 10-0 || Misty scud; dense mass of clouds.
18 667 || 44-6 | 44-2 |0-4 || 0-7 |0.3 6 | 6:—:—| 10-0 || As before; rain®?
19 690 ||45-0 | 44-5 |0-5 || 0-5 | 0.5 4 || 5:—:—/| 10-0 GES id.
20 709 || 46-1 | 45-4 | 0-7 || 0-7 |0-5 d || 5:—:—|| 10-0 dee rane
21 727 ||46-7 |45-9 |0-8 || 0-7 [0-7 | 4 | 5:—:—|] 10-0 Id,; . xan”
22 752 |\46-7 | 45-9 |0-8 | 0-8 |0-6 | 4 || 5:—:—/| 10-0 || Misty scud; Scotch mist.
23 766 || 47-0 | 46-0 | 1-0 || 1-2 | 1-1 5 5:—:—]|| 10-0 Id. ; id. ; rain?
27 0 788 || 46-8 |45-9 |0-9 | 1-1 |0-5 | 4 | 5:—:—J]} 10-0 Id ; clouds breaking.
it 800 || 46-8 | 45-9 |0-9 | 0-7 |0-7 | 4 || 5:—:—|] 10-0 IGE: id.
2 819 || 47-7 | 46-3 | 1-4 || 0-9 | 0-6 4 | 4:—-:—|| 10-0 || Seud; id.
3 828 || 47-2 | 45-6 | 1-6 ||0-7 | 0-6 4] 4:—:—] 10-0 ids: id.
zt 834 || 47-3 | 45-3 | 2-0 | 0-9 |0-9 | 4 | 4:—:—J] 10-0 | Id.; id.
5) 847 ||46-7 | 44-5 | 2-2 | 1-3 | 1-0 4) 4:—:—| 10.0 Id.
6 852 || 46-4 | 44-2 | 2.2 | 0-9 |0-5 | 4] 5:—:—]| 10-0 || Id.; clouds breaking.
7 865 || 45-6 | 43-5 | 2-1 | 1-0 | 0-5 4} 4:—:—] 10-0 Id.
8 879 || 45-0 | 42-9 | 2-1 || 0-6 |0-5 6 4:—:—|| 10-0 Id
9 887 || 44-0 | 42-4 | 1-6 || 0-7 |0-7 4 10-0 Id
10 896 || 44-2 | 42-4 | 1-8 || 0-4 | 0-2 4} 3:1—:—|| 10.0 Id
11 913 || 43-9 | 42-2 | 1-7 || 0-4 | 0-3 4 10-0 Id
12 915 || 43-5 | 41-4 | 2-1 || 0-4 | 0-3 4 || 10-0 | Id
13 || 29-922 | 43-2 |41-7 | 1-5 | 0-3 |0-2 | 3 | | 10-0 | Seud.
14 925 || 43-1 | 41-2 |1-9 | 0-4 |0-3 3 | 10-0 || Id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, K. = 8, 8S. = 16, W. = 2a
motions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
*
' Hourty METEOROLOGICAL OBSERVATIONS, May 27—29, 1845. 191
< THERMOMETERS. WIND. louds,
ee) @XtO- Maxi Se. : C.-s.:Ci.,]] Sk
ean || METER EU SUVENE PR Velanded Species of Clouds and Meteorological Remarks.
me. || at 32°. || Dry. | Wet. |Diff.|| force in |Promi) Teves = jouees:
from
14,; 10™
h. in. 5 y : Tbs. | lbs. | pt. pt. pt. pt. 0—10.
15 || 29-926 || 42-9 | 40-7 | 2-2 ||0-6 | 0-5 3 10-0 || Scud.
16 928 || 42-8 | 40-7 | 2-1 || 0-4 | 0-3 3 10-0 Id.
7 933 || 42-8 | 40-7 | 2-1 ||0-7 | 0-4 4. 10-0 Id. ; cirro-strati.
-18 935 || 43-4 | 41-0 |2-4 |}0-7 |0-5 | 4 10-0 || Mass of cirro-stratus.
19 940 || 44-0 | 41-6 | 2-4 06 | 0-3 3 || 4:—:—|] 10-0 |] Scud ; dense mass of cirro-stratus.
20 946 || 45-3 | 42-3 |3-0 ||/0-9 |0-7 | 5 ||—: 4:—] 10-0 || Cirro-stratous scud, breaking.
) eal 948 || 46-4 | 43-4 | 3-0 || 1-2 | 0-8 2 || 4:—:—]| 10-0 || Scud, with other clouds above.
99|| 947 |/48-7 | 45-0 |3-7 1-0 1-1 | 4] 5:—:—]| 9-8 || Ia. id. r=)
23 941 || 48-4 | 44-9 |3-5 || 1-2 | 1-0 4 10-0 Id., id.
ate) 945 ||49-4 | 45-6 |3-8 | 1-4 | 1-1 4 9-9 || Id.; cirro-strati.
1 937 ||48-9 | 45-4 |3-5 | 1-4 | 0-9 5 |i —: 5:—|| 8-0 || Cirro-stratous scud ; patches of cirro-strati. ()
2 927 ||51-6 | 48-1 |3-5 || 1:0 |}0-4 | 5 ]}—: 4:—|| 9-0 || Scud.; patches of cirro-strati and cirri. )
3 920 ||48-7 | 45-1 | 3-6 || 1-3 | 1-0 6 || —: 5:—|| 4-0 || Id.;_ cirri to SE. ©
4 908 ||49-8 | 46-1 |3-7 || 1-4 }1-2 | 4 ||—: 5:—]| 7-0 || Id; id. ©
| 5|| 898 | 48-8 | 45-0 [3-8 1-2 }0-9| 6 ]|—: 4:—]| 6-5 || Id.; woolly cirri. r=)
6 888 || 47-7 | 44-3] 3-4 |} 1-1 | 0-9 5 ||—: 5:—|| 8-0 | Id.; id.
7 891 || 46-0 | 43-7 | 2-3 || 1-0 | 0-7 4)—: 5:—] 10-0 Id. ; cirro-strati.
8 886 || 45-6 | 42-8 |2-8 1-2 |0-7 | 4 9-9 || Id.; id.
9 891 || 43-4 | 41-74) 1-7 || 1-2 |1-3 | 3 10-0 || Dense mass of scud and cirro-stratus.
10 887 || 44-2 | 41-8 | 2-4 || 1-3 | 0.2 4 10-0 Id.
11 886 || 44-0 | 41-6 | 2-4 || 1-1 | 0-5 4 10-0 || Seud 2
| 12 880 || 43-9 | 41-1 | 2-8 |) 1-1 | 1-0 4 10-0 Id.
) 13 || 29-873 || 43-5 | 41-0 | 2-5 |/0-8 | 0-4 3 10-0 || Seud 2
| 14 858 || 43-3 | 40-9 | 2-4 | 0-7 | 0-9 2 10-0 Id.
) 15|]| 854 |/42.9 | 40.3 |2-6 |/1.0 |0-7 | 3 10:0 || Id.
16 841 | 43-0 | 41-0 | 2-0 || 1.1 | 0-6 2 10-0 Id.
a aL7 837 || 43-0 | 41-0 | 2-0 | 1.0 |0-4 | 2 | 3:—:—] 10-0 Id. ; cirro-stratous scud.
18 $23 || 43-4 | 41-4 | 2:0 110-6 | 0-5 2 3:—:—]| 10-0 Id. ; id.
. 19 818 || 43-7 | 41-0 | 2-7 ||0-7 | 0-5 3 4:—:—/ 10-0 Id. ; id.
20 812 || 44-2 | 41-3 | 2-9 |} 1.2 | 0-7 3 4:—:—J] 10-0 Id. ; id.
21 807 || 45-0 | 42-0 | 3-0 || 1-3 | 1-0 4 5:—:—|| 10-0 Id. ; id.
} 22] 799 || 46-2 | 43-2 |3-0 | 1-4 |0-7 | 3 |) 5:—:—|| 10-0 | Ia.; id.
H923]) 795 || 47-2 | 44-0 |3-2 11-5 |1-0 | 3 || 5:—:—|]| 100 | Ia; id.
0 788 || 49-1 | 45-4 |3-7 |/ 1-3 | 1-8 3 5:—:— 9-9 Id. ; id.
al 785 {150-0 | 46-2 | 3-8 11-3 | 1-1 4 5:—:— 9.9 Id. ; id.
2 777 || 51-9 | 47-7 | 4-2 || 1-1 | 0-9 2 §:—:— 9-9 Id. ; id.
3 763 || 52-0 | 48-0 |4-0 ]1-0 |0-8 | 5 || 4:—:—] 9-0 Id.; loose cumuli. e
4 750 || 51-0 | 46-9 | 4-1 || 0-7 | 0-4 2 4:—:—]| 9-5 Id.; cirro-strati; loose cumuli.
5 750 || 50-8 | 47-0 | 3-8 || 0-9 | 0-6 3 || 4:—:—]| 9-5 Id. ; id. ; id.
6 750 | 49-6 | 46-1f| 3-5 || 0-9 | 0-4 3} pie (aye = 6:0 || Cirro-stratous scud; cirro-strati; cirro-cumuli. ©
7 750 ||47-8 | 45-2 |2-6 10-7 |0-6 | 4 ||—: 3:—J]] 10-0 |] Dense mass of cirro-stratous scud.
8 762 ||46-0 | 44-2 |1-8 ]0-8 |0-5 | 4 ||—: 4:—J| 9-8 || Cirro-stratous seud.
no 773 || 45-4 | 44-0 |1-4 10-6 |0-3 | 4 || 4:—:—|| 9-5 |) Loose cirro-stratous scud.
10 782 || 43-7 | 42-7 |1-0 || 0-3 | 0-1 3 4:—:— 8-0 Id.
ial 773 \\44-1 | 43-2 |0-9 ||0-1 | 0-1 3 4:—:— 9-5 Id.
12 781 || 45-4 | 44-4 | 1-0 || 0-4 | 0-2 3 9-8 Id.
13 || 29-784 || 45-3 |44.6 |0-7 ||0-3 |0-2 | 3 9-9 || Loose cirro-stratous scud. [N. and NE. hor.
14 784 || 43-8 | 43-3 |0-5 ||0-1 | 0-0 3 3-0 || Scud to S. ; clouds moving off’; cirro-strati and haze on
15 785 ||39-5 | 39-3 |0-2 || 0-0 |0-0 | 30 1-0 Id. SE. ; cir.-str. to NE.; haze on NE. horizon. )
16 786 || 36-1 | 36-1 | 0-0 ||0-0 | 0-0 | 20 0-8 || Nearly as before ; stratus on the ground, red to NE.
| 17 788 || 38-0 | 38-0] 0-0 || 0-0 | 0-0 | 20 . 0-5 || Seud on SE. horizon; cirro-strati to N. ©
(18 792 ||40-7 | 40-4 |0-3 ||0-0 |0-0 | 20 | 5:—-:—j}| 3-5 || Loose misty scud ; id. 0)
} 19 803 | 46-0 | 44-8]} 1-2 | 0-0 |0-0 | 10 | 4: 4:—|| 9-5 Id. ; cirro-stratous scud.
20 817 || 48-8 | 46-8 | 2-0 ||0-3 | 0-2 3 3: 4:— 9-8 Id. ; id. @
21 839 || 50-2 | 47-7 | 2-5 ||0-5 | 0-5 2 3: 4:— 9-0 Id. ; id. (=)
| 22 824 || 52-5 | 49-0 | 3-5 |0-7 |0-6 | 4 | 3: 4: 5]! 9-0 || Scud; loose-cumuli; woolly cirri.
: The direction of the wind is indicated by the number of the point of the compass, reckoning N. =0, E.=8,8S.=16,W.=24. The
notions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
May 29° 64. Cirro-stratous scud becoming cirro-stratus, some portions of it slightly cymoid : cirro-cumuli and cirro-cumulo-strati.
y
192
Gott.
Mean
3
B
oO
Ne
w bo
oof
OMNIA MBwWwWr OW:
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, S. = 16, W. = 24.
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Hovurty METEOROLOGICAL OBSERVATIONS, May 29—JuNE 2, 1845.
THERMOMETERS.
Dry.
55-6
54-2
Diff.
WIND.
Maximum
force in From
1h, ;10™,
=
a
n
=
wig nest
n
wg
bo
°
a
APRA OAs
i=)
bo
=
i=)
Wor DKH WL
>)
S
=
S
i)
Se.
Clouds,
:C.-s. :Ci.,
moving
NoOoNnNwWWWWwFt
from
:22:—
7 24:—
bo
ow
o
|
Sky
clouded.
"
Species of Clouds and Meteorological Remarks. —
Scud ; loose cumuli.
Id. ; id. ; cumuli ; cirro-strati.
Id. ; idee id. ; id.
Loose cirro-stratous scud ; cumuli; cirri. ;
Ta? ; id. ; id, 5 cirro-st) ati,
Td; id, 5" a5% id.
Td. ; cirro-strati ; cum.-str. ; ¢;
Cir.-cum.-str.; patches of scud below, and of cir. aboye
Td.
Cirro-cumulous scud ; cirro-cumulo-strati.
dhe id.
Cirro-stratous scud ; cirro-cumulo-strati.
Id. ; id.
itd; id.
Cirro-stratous scud ; cirro-cumulo-strati.
Id. ; id.
Id. ; id
ds id
Seud; loose cumuli; cumuli; cirro-strati; cirri.
Cirri anal cirrous hemes fine cumuli on N. horizon. —
Cirro-cumulo-strati ; cum.; cum.-str.; cir.-str.; cir.
Scud and loose cumuli; cumuli, &c.; as petons 4
As before ; rather electric-looking.
Loose cumuli; woolly cirri and cirro-strati.
idly. cirro-stratous scud ; cirri ; cirro-st ati.
Cumuli ; loose cirro-strati.
has: id.
Td! 3 id
ligles id
Seud ; cumuli ; cirro-cumulo-strati.
Fdis "vad: id.
ICR. aGhe id.
Cirro-cumulo-strati; cumuli and cumulo-strati on hor,
Tid 5 cumulo-strati to N.
Cirro-stratous scud ; cirro-strati; cirri.
Cirro-strati and haze near horizon.
Cirro-stratous scud and haze near horizon. [from WS}
Cirro-strati and haze to N; faint milky streaks of cirri radiat
Sunday—Scud, cum., and cir.-cum.-str. ; cloudy, wi
1 occasional sunshine and showers ; electric-looking.
Overcast ; scud 2 q
ligke id.
at id.
Nearly homogeneous.
Loose scud; densely clouded.
iGhs id.
ide id.
Tass cirro-cumulo-strati.
nc id.
Id. ; TGS cirri. ¥i
Id. ; id.; id. }
GRR id. ; wo. and curled cir.
id; id. ; id. ;
Seud; cir.-cum.-str.; tufts of cir. and cir. haze; sky stormy-like
Id. ; id. ; id. ; solar halo. |
Idos id. :
Hovurty METEOROLOGICAL OBSERVATIONS, JUNE 2—4, 1845. 193
THERMOMETERS. WIND. aia
Bano- 0;
: TER Maximum See, en Rey Species’ of Clouds and Meteorologi cs.
re || at 32°. Dry. | Wet. |Diff./ forcein |From| "ve aoe 4 Was ee
1h, | 10™,
h. in. 2 2 S lbs. | lbs. pt. pt. pt. pt. 0—10,
5 | 29-521 | 59-4 | 54-4 | 5-0 || 1-8 | 1-1 | 20-22 ;—:— 9-9 || Scud; tufts of cirri and cirrous haze.
6 AOI Mioee | 53-2 4-407) Led | 22) 90 = + 9:8 Id.; various kinds of cirro-strati; cirri.
tg 498 57-0 | 52-6 | 4-4 || 1-4 | 1-6 | 20 || 23 :—:— 9-5 Id.; cir.-str. ; cirri and cirrous haze ; imperfect halo.
8 486 || 55-2 51-67 3:6 || 1-7 | 1-4 | 19 9-5 Sky covered with cirri; cir.-str. and cir.-haze; halo and parhelia. Q
9 482 || 52-9 | 50-1) 2-8 | 1-2 |0-6 | 20 |—:—:12]| 9-0 || As before; hale just disappearing.
10 471 || 51-3 | 49.2 | 2-1 || 0-6 |0-6 | 18 7-0 Id. ; cirri thinner.
11 465 || 49-1 | 48-0 | 1-1 || 0-7 |0-4 | 19 7-0 || Cirro-strati, cirri, and haze.
12 458 || 48-3 | 47-0 | 1-3 || 0-2 | 0-1 | 20 3-0 Id.
13 || 29-439 || 45-7 | 45-3 | 0-4 || 0-2 |0-0 | 20 3-0 || Cirro-strati, cirri, and haze round horizon.
14 419 || 46-4 | 45-7 | 0-7 || 0-1 | 0-0 | 22 4-0 Id.
15 396 || 45-7 | 45-3 | 0-4 || 0-1 | 0-0 | 18 || 20:—:—/| 10-0 || Smoky seud ; cirro-strati; cirrous mass.
16 371 || 49-4 | 48-3 | 1-1 || 0-5 |0-3 | 18 || 20:—:—J|| 10-0 || Scud; dense cirrous mass.
17 353 150-2 | 48-4 | 1-8 || 0-4 |0-2 | 17 10-0 dis id.
18 340 || 51-2 | 49-3 | 1-9 || 0-2 |0-2 | 17 10-0 || Dense cirrous mass.
19 324 || 53-1 | 51-1 | 2-0 || 0-3 | 0-6 | 19 || 20:—:—J|| 10-0 || Seud and dense cirro-stratus.
20 298 || 56-4 | 53-6 | 2-8 | 1-8 | 1-0 | 18 || 20:—-:—J}) 3-0 || Seud; woolly cirri and sheets of white cirro-strati. ©
270 || 59-7 | 55-5 | 4-2 | 2-1 |0-9 | 18 | 19:17:—|| 8-0 || Cumulous scud; id. 0)
22 942 || 59-1 | 54-8 | 4-3 || 1-0 | 1-0 | 19 || 19:—:— 9-5 || Scud and loose cumuli; cirri and cirro-strati.
3 221 || 60-6 | 55-1 | 5-5 || 1-3 | 1-3 | 18 || 18:—:—]| 9-4 || Seud; cumuli; cirro-strati.
0 201 || 60-0 | 54-6 | 5-4 |} 2.9 | 1-8 | 18 || 19:—:—]| 9.7 Jicles” aiclee id. (2)
1 160 || 61-0 | 54-1 | 6-9 || 3-4 | 2-3 | 18 ||20:—:—]| 9.7 IGE CRY acl (=)
2 124 || 62-5 | 54-1 | 8-4 | 3-1 | 2-2 | 19 || 18:—:—]| 6-5 || Cumuli; white cirro-stratus to W. (2)
3 074 || 62-2 | 55-0 | 7-2 || 3-5 | 1-8 | 19 | 18:—:—|| 7-5 || Loose cumuli; woolly cirri and cirro-strati.
4 037 || 61-4 | 53-6 | 7-8 || 3-0 | 2-1 | 18 |} 18:—:— 9-3 Nae dense cirro-stratus and haze.*
5 29-003 || 59-9 | 52-6 | 7-3 || 2-9 | 1-7 | 18 |18:—:—]] 9-5 |! Seud; loose cumuli ; id.
6|| 28-967 || 59-7 | 53-3 | 6-4 || 2-0 |0-8 | 18 | 18: —:—J]} 10-0 Id.; dense cirro-stratus and haze.
4 954 || 55-0 | 51-2 | 368 | 1-4 |} 1-1 | 20 | 18:—:—J| 10-0 Id. ; id. ; rain”
8 921 || 50-8 | 49-4 | 1-4 || 1-5 |0-7 | 18 | 18:—:—]} 10-0 Id.; rain!
19|| 909 | 49.8 | 47-7 | 2.1 || 2-6 |0-7 | 20 10-0 || Nearly homogeneous ; rain”
‘10 889 || 48-0 | 46-8 | 1-2 ||0-6 | 0-3 | 21 10-0 || Scud; cirro-strati ; cirrous mass,
\DT 874 || 47-7 | 46-4 | 1-3 || 0-7 |0-6 | 19 9-5 Id.; cirri.
fe 876 || 47-7 | 45-5 | 2-2 || 1-5 |0-9 | 20 10-0 || Id.
113 || 28-899 || 45-7 | 42-9 | 2.8 || 1-9 |0-9 | 22 10-0 || Scud.
14 909 || 45-8 | 43-3 | 2-5 || 1-2 |0-7 | 22 10-0 Id. ; cirro-strati; cirri.
(15 929 || 44-9 | 42-3 | 2.6 || 1-2 |0-6 | 22 | —:24:— 4-5 Cirro-stratous scud ; woolly cirro-strati.
16 949 || 43-3 | 41-2 | 2-1 || 1-1 |0-2 | 22 || —:24:—]| 2.0 Id. ; id.
17 957 || 43-6 | 41-74] 1-9 || 0-6 |0-8 | 20 || 24:—:25]) 4-5 || Seud; cir.-str. scud; mottled, woolly, and linear cirri. ©
|18 973 || 45-4 | 43-3 | 2-1 11-3 |0-6 | 21 || —: 24: 25 2-0 || Cirro-stratous scud ; cirri; cirro-strati. ©
#29) 28-996 | 49-3 | 46-2 | 3-1 11-5 | 1-5 | 21 | 22:—:— 5-0 || Scud; cirro-strati; cumulo-strati; cumuli; cirri. ©
120|| 29-001 || 50.4 | 46-8) 3-6 || 1-7 | 1-2 | 20 | 23:—:—J| 6-0 || Scud and loose cumuli; cirro-strati, &c., as before. ©
21 002 || 53-5 | 48-7 | 4-8 || 2-0 | 1-8 | 20 | 21:—:—J]|} 4-0 || Loose cumuli; loose cirro-cumulo-strati, (2)
(22 015 || 54-7 | 49-5 | 5-2 || 2.5 | 2-1 | 21 | 22:—:— || 5.0 Id. ; cumuli; cumulo-strati; cirro-strati. ©
(23 016 || 56-3 | 49-5 |6-8 || 2-6 | 2-4 | 19 ||}22:—:—]| 6.0 Id. ; id. ; id. ; id. (2)
40) 026 | 55.4 | 48-3 | 7-1 | 3-3 | 2-7 | 20 ||22:—:—]| 6.0 Id. ; nde id. ; nimbi.
1} 047 | 54-8 | 49-8 | 5-0 || 4.3 | 1-7 | 21 | 22:—-:—|| 9.0 || Seud; id. ; id. ; id.; | rain?
v4 057 || 53-4 | 48-7 | 4-7 || 2-8 |2.3 | 20 |22: —:—|| 9.8 Iiels 8 id. ; id. ; id.; rain!
085 || 51-3 | 48-2 | 3-1 || 3-7 |3-g | 18 || 22:—:—|| 9-5 Id. ; rls P id. ; id.; rain?
096 || 49-8 | 48-0 |1-8 || 2-6 | 1-5 | 20 || 22:—-:—]| 9-8 || Scud and loose cumuli; cumuli; cirro-strati.
100 || 52-2 | 49-4 | 2-8 || 1-6 | 1-2 | 19 | 23:—:— 4.5 lhe id. ; id. ; rainbows.
116 || 53-5 51-0 2-5 1-7 8 BAA) || 33 of —— 7-5 Scud; cumuli; cum.-str.; nimbus; cir-str.; rainbows and showers.*
129 || 51-8 | 49-3 | 2-5 || 1-2 |0-9 | 20 | 22:—-_:—|| 3-5 || As before. ()
146 || 50-2 | 48-1 | 2-1 | 1-3 |0-6 | 19 | 22: —:— 9-0 || Scud; cirro-stratous scud ; cumulo-strati ; nimbi ; cirri.
170 || 49-1 | 47-0]| 2-1 || 0-8 |.0-2 | 19 || 22:—_:—1]| 8-0 || As before.
178 || 48-6 | 46-7 | 1-9 | 0-6 |0-2 | 19 | —:22:—]) 4.5 || Cirro-stratous scud.
186 || 45-0 | 44-0 | 1-0 || 0-1 |0-0 | 18 7:5 Id.
188 || 47-1 | 46-0 | 1-1 || 0-2 |0-4 | 18 |) 8-0 Id. ; drops of rain.
June 24 21h, Observations made at 214 5m,
June 3451, Greenish sky to H.; cirro-strati of a slate-blue colour to NW.
June 34195, Observations made at 19 30™,
June 44 6", 74, and 8h, Passing showers. The lowest stratum of clouds just touches the top of Cheviot.
* See additional Meteorological Notes after the Hourly Meteorological Observations.
MAG. AND MET. oss. 1845. 3c
HourLy METEOROLOGICAL OBSERVATIONS, JUNE 4—6, 1845.
THERMOMETERS. WIND.
Gott BARO-
Mean || METER Maximum
Time. |) at 32°. |) Dry. | Wet. | Diff. force in |Fyom
14, ,10™,
a h. in. 2 e 2 lbs. | Ibs. pt.
4 13]| 29-196 ||46-2 |45-4 |0-8 || 0-5 | 0-1 | 17
14 196 ||45-5 | 44-9 | 0-6 ||0-3 |0-1 | 17
15 187 ||48-7 | 47-5 | 1-2 | 0-2 |0-1 | 16
16 172 ||48-6 |46-6 |2-0 | 0-4 |0-2 | 17
17 179 ||48-1 |46-3 | 1-8 || 0-4 | 0-1 | 19
18 187 ||47-9 |46-4 |1-5 0-3 |0-1 | 14
19 175 ||48-2 |47-0 | 1-2 |0-3 |0-2 | 14
20 159 | 49.5 | 47-7 |1-8 0-3 |0-3 | 15
21 150 151-2 |49-5 |1-7 ||0-5 |0-7 | 15
22 137 || 56-6 | 53-0 | 3-6 || 0-7 |0-8 | 16
23 115 || 57-7 | 54-8 | 2-9 || 1-6 | 1-7 | 16
D0 122 ||56-4 | 54-2 |2-2 || 1-1 |0-8 | 17
1 113 || 59-8 | 56-4 |3-4 |} 1-1 | 1-3 | 21
2 113 || 62-3 | 58-4 | 3-9 || 2-3 | 2-4 | 20
3 117 ||61-8 | 57-8 |4-0 || 2-8 | 0-7 | 21
4 121 || 58-2 |56-0 | 2-2 ||0-5 |0-2 | 19
bs) 095 ||61-4 | 57-4 | 4-0 |} 1-2 |0-4 | 18
6 069 || 60-8 | 56-6 | 4-2 || 1-6 | 0-4 | 16
all 047 ||61-5 |57-0 | 4-5 ||0-6 |0-5 | 16
8 || 29-017 ||60-9 | 56-4 14-5 | 1-3 |0-7 | 15
9 || 28-987 || 60-0 | 55-8 | 4-2 || 2-9 |3-0 | 16
10 960 ||59-2 | 55-4 | 3-8 || 2-5 | 2-4 | 16
11 954 ||59-2 | 55-2 | 4-0 || 4-1 |3-8 | 15
12 951 || 57-7 | 54-4 |3-3 13-7 | 3-3 | 20
13 || 28-961 || 50-9 |48-9 |2-0 || 1-6 | 1-0 | 20
14 944 || 49-8 | 47-2 |2-6 || 1-4 |1-1 |] 18
15 925 151-4 | 48-3 |3-1 | 2-7 |1-3 | 18
16 922 ||51-5 | 48-4 |3-1 | 1-6 |0-8 | 17
17 893 || 53-0 49-2} 3-8 || 1-8 |1-9 | 17
18 901 ||55-2 | 51-3 |3-9 || 3-3 |1-8 | 16
19 899 || 56-0 52-3] 3-7 | 3-1 |2-7 | 16
20 903 || 57-4 | 54-0 | 3-4 || 3-7 13-3 | 16
21 935 ||55-9 | 53-0 |2-9 || 2-8 | 1-4 | 19
22 936 ||60-9 | 55-0 |5-9 | 3-1 |4-1 | 18
23 955 159-7 | 53-4 |6-3 | 5-5 |3-4 | 19
6 O 963 || 60-7 | 54-0 |6-7 | 6-4 |4-6 | 18
1 968 ||56-7 |52-7 | 4-0 | 6-6 |3-5 | 18
2 || 28-988 || 58-2 | 54-4 | 3-8 || 6-4 | 3- 19
3 || 29-025 || 57-1 |54-0 | 3-1 |/6-1 | 2-6 | 19
4 052 ||58-9 | 54-7 | 4.2 14-8 |3.9 | 18
5 101 || 58-0 | 53-4 | 4-6 || 5-8 13-3 | 19
6 137 ||56-7 |52-3 | 4-4 | 4.2 |2.4 | 19
ih 183 ||56-4 | 51-8 | 4-6 || 3-7 |2-2 | 19
8 194 || 54-3 |50-8 |3-5 || 3-7 | 1-6 | 19
9 254 || 53-8 | 50-4 | 3-4 2-0 |0-6
10 260 || 52-4 | 49-5 |2.9 1-5 11-4 | 18
11 296 || 52-2 |49-4 | 2.8 |} 2-0 |0-9 | 21
12 327 ||51-6 | 48-8 | 2.8 111-5 10-5 | 21
13 || 29-340 | 51-6 | 48-9 | 2.7 11-3 10-7 | 19
14 357 || 50-6 | 47-9 |2-7 ||0-8 | 0-8 | 18
15 370 || 50-6 | 47-7 | 2-9 || 1-1 | 1-4 | 19
16 390 || 49-7 |47-4 | 2-3 ||0-9 | 0-7 | 19
17 414 50-0 |47-1 | 2-9 | 1-1 | 1-2 | 19
18 432 || 50-4 | 47-8 | 2-6 ||0-7 | 1-3 | 21
19 459 || 53-2 |50-2 |3-0 || 1-6 | 1-0 | 19
20 474 || 55-0 | 50-2 (4-8 || 1-7 | 1-2 | 19
Clouds,
Se. : C.-
s.: Ci.,
moving
from
:18
:18
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Cirro-stratous scud,
Seud ; cirri and cirro-strati.
Thick scud. (rippled ; tinged with yellowish
Cir.-str. and haze ; scud to N. and on Cheviot; cirro-strati s igh
Dense cirro-stratus and haze.
Id. ; showers?”
Td: rain!
Ragged scud below mass of cirro-stratus ; rain”?
Id.
Seud ; id
diy id
Iida: id
Loose seud ; scud.
Id. ; id.
Seud ; cirro-strati; cirri.
dis id.
Idi; id.
Id.; locse cum.; cir.-str., gloomy and electric-looki
Id.; cirro-strati and cirrous haze.
ide id.; _ cirro-cumuli and cirrous haze.
lice id. ; id.
i Co BS id. and cirrous haze.
chee id.
Thick scud ; rain?
Bank on E. horizon.
Id.
Scud and cirro-strati round horizon.
Seud ; cirro-strati ; cirri.
Id.; woolly cirri; dense bank of cirro-strati to E.
Smoky scud ; cirri; id. to E and
Scud in two currents ; sheets of cir. & cir.-str. ;
Id. ; cirro-strati ; a few drops of rain.
Id. ; shower?’®
Seud and loose cumuli; cirro-strati.
Toss id.
Thick scud and loose cumuli.
Id.; drops of rain.
Td; id.
Nid sjs id.
Scud ; sheets of cirro-strati and woolly cirri.
Thick scud ; cirro-strati.
Id.
Thin scud; cirro-cumulo-strati ; woolly cirri.
Id. ; id. ; id.
dy: id. ; ids cirro-strat
Thick ice ; cirro-strati; cirrous mass.
Scud ; cirro-stratous secud ; cirro-cumulo-strati.
Id.; clouds denser than before.
Seud and cirrous clouds; sky in zenith.
Id. in patches ; cir.-cum.-str. radiating from Shy b
IiGlos id.
Id. ; id. (rad. from § |
Scud in patches and on hor. ; detached cir.-str. ; wool. and curl. mm}
Nearly as before, with net-like cirri. ;
Seud and loose cum. ; woolly cirri; cum. ; cir- stratus
Id. ; ide; id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H. = 8, 8S. = 16, W. = 24.
motions of the three strata of clouds, Sc. (scud), C
June 44 204. The scud below cirro-stratus just touches the top of Cheviot.
June 64 12h, The anemometer index rests at —
* See additional Meteorological Notes after the Bourn Meteorological Observations.
Ss. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
0:2; set right before this observation, and the observation of maximum 1 pressure corre ct d
Hovurty METEOROLOGICAL OBSERVATIONS, JUNE 6—10, 1845. 195
THERMOMETERS. WIND.
Clouds,
ey) seo- aaa Se.:C.-8.: Ci., || Sk
- mor pry. | Wet. | Dist “arcane eee moving _ clouded. Species of Clouds and Meteorological Remarks.
14, |10™, ior
hb in. e Zt 3 Ibs. | Ibs. | pt. pt. pt. pt 0—10
11 | 29-489 || 56-7 | 51-0 | 5-7 || 1-8 | 1-6 | 18 || 20:—:—| 4-0 || Scud and loose cum. ; sheets of cir.-str. and woolly cir. ©
12 508 | 59-8 | 53-0 | 6-8 || 2-3 | 2-0 | 18 | 20:—:—|| 6-5 Id. ; id. 0)
510 || 60-8 | 53-2 | 7-6 ||2-0 | 1-2 | 19 || 20:—:— | 6-0 IGG s cum.-str. and cirro-stratito E. ©
0 518 || 60-5 |53-2 |7-3 |} 1-7 | 1-7 | 19 || 20:—:—|| 7-0 Td: cumuli ; cirro-strati. (0)
1 511 ||60-7 |52-6 | 8-1 |}2-1 | 1-2 | 18 ]/19:—-:—]| 6-0 Id. ; id. ; id.; cirri. ©
2 540 ||63-8 |55-8 |8-0 || 1-8 |0-9 | 18 | 19:—:17 9-0 Id. ; woolly cir.; cum.; cir.-str.; haze. ©
3 528 || 62-8 | 54-2 |8-6 || 1-1 |0-6 | 19 9:8 || Patches of seud; sky nearly covered with cirro-strati
4 513 || 60-0 | 52-7 | 7-3 || 1-2 | 0-2 | 21 9-9 || As before. {and cirrrous haze.
5 507 || 60-5 | 53-5 |7-0 210-0 | 24 || 16:—:— 10-0 || Cirro-stratous seud; cumuli; cirro-stratus.
6- 489 || 61-6 | 53-4) 8-2 || 0-2 | 0-2 8 17:—:— 9-2 || Loose scud forming below cir. haze ; piles of cauliflower cum.-str.
7 “490 || 56-6 | 52-7 | 3-9 || 0-6 | 0-1 8 || 12:12:—- 9-9 Scud; cir.-str.: cir. haze ; passing showers ; electric-like to SE.
8 477 ||55-3 | 52-4 |2-9 10-2 |0-1 5 || —:13:—| 10-0 || Hazycir.-str.scud and cir.-str.; piles of loose cum. on hor.
9 468 ||54-7 |52-3 |2-4 ||0-3 | 0-1 9 10-0 || Nearly as before; rain”?
0 453 || 53-1 |51-9 | 1-2 ||0-1 | 0-1 3 10-0 ligkes id.
1 439 || 52-3 | 51-7 |0-6 |/0-2 | 0-1 4 10-0 || Scud and cirro-strati; rain!
2 413 | 51-6 | 51-0 |0-6 || 0-3 | 0-2 3 10-0 Ils 2 id.
% ; Sunday—Overcast, with cumuli; occasional showers
33) 29-402 | 59-6 |53-1 |6-5 1-2 /0-3 | 6 |) 1:30:—]| ..- | ;
and sunshine.
8 || 29-845 148-5 | 45-2 | 3-3 | 2-1 |0-5 | 21 2-5 || Cirro-strati.
4 861 ||47-5 | 44-6 |2-9 ||0-7 | 0-8 | 21 1.5 || Patches of scud; cirro-strati.
5 877 ||47-0 | 44-3 |2-7 ||0-9 |0-4 | 18 ]}/—:25:—J] 3-5 || Cirro-stratous scud; id.
6 892 ||47-2 | 44-8 |2-4 ||0-4 | 0-6 | 19 || 25:—-:— || 5-0 || Seud; cirro-strati; woolly cirri.
e 919 ||49-7 | 45-3}) 4-4 ||0-8 | 0-6 | 20 | 25:—:—|| 8.0 Id. ; dees id.
8 930 ||49-2 | 45-8 | 3-4 ||0-6 |0-6 | 20 | —:—: 28 6-0 || Mottled cir. and cir.-str. ; cymoid cir.-str, scud on E. horizon. (0)
19 943 ||51-6 |47-5 | 4-1 ||0-6 |0-5 iff 7-0 Cir.-str. to E., thick cir. haze and woolly cir. to W.and NW.;masses of cum. to NW. ©)
20 963 || 54-0 | 48-1 | 5-9 || 1-2 | 1-2 | 22 |) 93 :— .— 9-5 Masses of loose cum, woolly cir. and cir. haze; cir.-str; portion ofa solar kalo. ©
Pi 972 ||55-9 | 50-74) 5-2 || 2-1 | 1-3 | 20 || 23:—:—] 9.0 || Allas last hour, with drops of rain. ra)
22 967 155-9 |50-0 | 5-9 111-7 | 1-7 | 20 || 21 :—:—|| 10-0 || Masses ofloose cum. ; dense cir, haze, becoming cir.-str.; dropsof ©
23 970 ||55-9 | 50-1 | 5-8 || 2-3 |0-7 | 18 | 22:—:—] 10-0 Id. ; id. [rain.
J 0 958 ||57-7 | 52-3 | 5-4 || 1-6 | 2-5 | 20 | 22:—:—|| 10-0 || Masses of scud; cirro-strati and cirrous haze.
ini 956 || 58-1 | 52-5 |5-6 || 3-2 | 2-0 | 18 || 21:—:—|| 10-0 Id. ; id. @
in} 972 157-3 |51-7 |5-6 13-9 | 1-5 | 20 || 22:—:—|| 10-0 || Scud; dense cirro-stratus and haze.
13 972 || 55-0 | 51-4 | 3-6 || 4-0 | 2-7 | 20 | 21:—:—| 10-0 Id. ; id.
| 4 967 || 54-6 | 51-6 | 3-0 || 2-7 | 2-4 | 20 | 20:—:—| 10-0 Id. ; id.
5 980 ||54-3 |51-3 | 3-0 ||3-0 | 2-3 | 19 | 20: —: — |] 10-0 Id. ; id.
. 6 974 ||54-8 | 52-2 |2-6 |/2-8 | 1-7 | 19 |20:—:—]] 10-0 || Ia.; id.
17 |) 29-987 || 55-2 | 52-7 | 2-5 | 2-0 | 1-2 | 18 | 20:—:—| 10-0 Id. ; id.
8 | 30-005 || 54-7 | 52-8 | 1-9 || 1-6 | 1-6 | 21 || 20:—:—]) 10-0 Jick = id. ; drops of rain.
| 9 013 || 55-0 | 53-0 | 2-0 || 1-7 | 0-6 | 21 ||} 20:—:—|| 9-9 Id.; cirro-strati.
0 015 || 54-5 | 52-8 |1-7 1-0 | 1-7 | 21 | 20:—:—| 10-0 Id.; mass of cirro-stratus.
/ 1 020 || 53-9 |52-7 | 1-2 || 1-0 | 0-8 | 21 ||21:—:—]| 9-5 || Smoky seud; cirro-strati; cirrous haze.
2 022 153-5 | 52-3 | 1-2 || 1-2 | 0-6] 21 5:5 lice id. ; id.
| 3 30-016 || 53-7 | 52-5 | 1-2 ||0-7 | 0-6 20 3-0 Cirri radiating from SW by W. and NE by E.; patches of cir.-str.
i 4 017 || 54-6 | 53-4 | 1-2 ||0-8 | 0-7 | 22 6-5 || Scud; cirro-strati ; cirri radiating from SW by W.
5 028 | 55-0 | 53-6 | 1-4 ||0-7 | 0-2 | 22 10-0 || Cirro-stratous scud.
6 021 || 54-7 | 53-8 |0-9 || 0-7 | 0-7 | 20 | 20:—:—)]] 10.0 || Misty scud, very low and moving quickly.
17 026 || 54-6 | 54-0 | 0-6 | 1-1 |0-7 | 20 || 20:23:—]| 9-8 Id. ; cir.-str.; cir.-cum.-str. and cir. seen through
18 044 || 56-8 | 55-8 | 1-0 0-8 | 0-5 | 18 10-0 |) As before. [the scud.
19 || 041 ||57-4 |56-0 | 1-4 0-9 |0-8 | 18 || 21:—:—]| 10-0 | Scud; cirro-strati and a cirrous mass.
20 064 || 58-7 | 56-7 | 2-0 || 1-2 | 0-7 | 20 ||} 20:—:—J| 10-0 Id. ; id.
Rt 071 ||58-8 | 56-7 |2-1 ||0-9 |0-9 | 19 ||20:— :—]) 10.0 |] Thick scud.
22 072 || 62-5 | 59-2 | 3-3 0-8 | 0-9 | 21 9-9 Id. ; cirro-strati.
23 072 || 62-2 |58-3 | 3-9 |}1-1 | 0-3 | 20 || 20:—:—|| 9-8 || Seud; cirro-cumulo-strati; cirro-strati; cirri.
10 068 || 62:9 | 59-2 | 3-7 ||0-7 |0-7 | 21 |} 21:—:—] 9-8 || Id.; ids ; id. ; id. @
1 071 || 65-0 | 60-5 | 4-5 ||0-9 | 0-5 | 21 || 21:—:—| 9-9 Id. ; id. ; id. ; id. @
a] 2 072 | 63-5 |59-3 | 4-2 ||0-8 0-7 | 21 121:—:—Il 9-9 || Id; id. ; id. ; id.
: The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E.= 8, So 6) Wii 24. The
i tions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
_|June 74 6, Atmosphere close, and appearances electrical, in about 15™ ; portion of a solar halo and fine drops of rain.
J
9
10°
|
|
|
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, EH. = 8, S.=16, W. = 24. r
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
June 104 20h,
June 114 214,
Hovurty METEOROLOGICAL OBSERVATIONS, JUNE 10—12, 1845.
THERMOMETERS. WIND.
Maximum
Dry. | Wet. | Diff.|| force in
14, | 10™,
o c ° lbs. | Ibs
66:0 | 60-7 | 5-3 || 1-0 | 0-6
64-8 | 60-2 | 4-6]|0-9 |0-7
62-7 |58-7 | 4-0] 0-8 | 0-7
62-7 59-0T 3-7 || 0-6 | 0-6
61:4 | 58-0 | 3-4||0-7 | 0-3
60-8 | 57-7 | 3-1]|0-5 |0-3
58-9 56-8] 2-1 || 0-4 | 0-4
58-0 | 56-3 | 1-7] 0-3 | 0-1
57-7 | 56-2 | 1-5 || 0-4 | 0-2
57-4 | 55-8 | 1-6|/0-3 | 0-1
56-4 | 55-1 | 1:3]/0-3 | 0-1
56-6 | 55-1 | 1-5||0-1 | 0-1
56-7 |55-1 | 1-6] 0-7 | 0-3
55-4 | 54-2 | 1-2]10-3 | 0-1
56-0 | 54-7 | 1-3 ]/ 0-3 |0-1
57-7 | 56:0 | 1-7||0-1 | 0-0
60-9 58-4F 2-5 ||0-4 | 0-2
61-1 | 58-0 | 3-1]/0-5 | 0-3
61-4 58-0] 3-4 ||0-8 | 0-6
66-0 | 61-0 | 5-0]/0-8 | 0-5
68-5 | 62-2 | 6-3]/ 1-2 | 1-2
67-3 |61-2 | 6-1]} 1-1 | 0-8
68-0 | 61-4 | 6-6] 1-3 | 1-1
69-0 | 61-5 | 7-5||0-8 | 1-5
70:0 |62-2 | 7-8] 1-2 | 1-2
71-7 | 63-4 | 8-3|/ 1-1 | 0-5
70-6 |62-7 | 7-9]|0-9 | 0-5
69-0 61-9 7-:1||0-9 |0-3
68-3 |61-6 | 6-7 ||0-4 | 0-2
66:5 | 60-4 | 6-1]/0-2 | 0-1
63-1 | 59-61) 3-510-0 | 0-0
60:0 | 57-7 | 2-3||0-1 | 0-0
7-0 |55-8 | 1-2}0-1 | 0-0
54-2 | 53-5 | 0-7] 0-0 | 0-0
53-2 |53-0 | 0-2/||0-0 | 0-0
53-7 | 53-2 | 0-5 || 0-0 | 0-0
52-8 | 52-2 | 0-6]0-1 | 0-1
51-7 |51-3 | 0-4] 0-1 | 0-0
52-2 |51-9 | 0-3 /0-1 |0-0
53-7 | 52-7+) 1-0] 0-0 | 0-0
56-1 | 54-9 | 1-2||0-1 | 0-0
59-3 56-9 2-4 |/0-1 |0-0
64:5 |61-1 | 3-4]/0-1 | 0-0
68-5 | 63-9 | 4-6 || 0-0 | 0-0
71-1 | 65-7 | 5-4]/0-1
1
62-4 |59-5]| 2-9] 0-2 | 0-1
Observations made at 20 5™,
Observations made at 21» 5™,
From
Clouds,
Se.: C.-s: Ci.| Sky
from
moving
. pt. pt.
clouded.
Species of Clouds and Meteorological Remarks, —
Seud and loose cumuli ; cirro-strati; cirri.
Id.; id. % id.
id: 5 it: id} ay
Misty cir.-str. scud ; cum. on horizon; sheets of ¢
ides sheets of mottled and diffuse ¢
Misty scud ; cir.-str. seud; sheets of cir. ; cum. on he
1G a id. 5; id. scud denser than b 4
Ide; id. ; cirro-strati.
Seud and cirro-strati.
Td.
Seud and cirro-strati.
Id.
Seud.
Id.; cirro-cumulo-strati ; cirrous haze.
Loose scud ; woolly cirri and cirro-cumuli.
Id. ; cirro-strati and cirri.
Misty scud ; cirro-cumulo-stratus.
Patches of loose scud ; cirro-cumulo-stratus.
tds; cirro-strati and cirrous mas
Cirro-cumulo-strati ; cirro-strati; cirri.
Id. ; loose cumuli ; cirro-strati ; cir
Scud and loose cum. ; cir.-str.; diffuse and mot. cir.
Alo kes id.
Td. isle id.
Id. ; 1d, = id.
Ids: id. ; id.
1s id. :
id.) patches of cirri and cir.-cum,
Sheets of woolly and mot. cir.; loose cum. near hor
Flat cumuli to N.; sheets of cirro-strati and cirri
Sheets of cirro-strati and cirri.
Cirro-cumulo-strati ; cumulo-strati on E. horizon,
Cirro-strati and cirri ; id.
ic Be id.
Cirro-cumulo-strati ; cirro-strati.
dee id. on horizon ; woolly
Cirro-strati and haze on horizon.
Cirro-cumulo-strati ; cirro-strati.
As before ; cir. haze ; mass of electric-looking clouds’
As before ; very hazy round horizon.
Cirro-cumulo-strati ; very hazy near horizon.
Id. ; id. :
Patch of scud ; wo. and diff. cir; atmosphere very haz}
Cirri, &c.; atmosphere very hazy. 3
Woolly and linear cirri; atmosphere very hazy. —
Masses of loose cumuli; streaks of cirri; very hazy
Tas; id. ; id.
ia id.; less cum. and haz
| Small masses of cumuli; cirri near horizon; hazy.
| Cum.-str. to SE.; woolly cir. to NW.; hazy on hor
Cum.-str. to E. and SE.; woolly cir.; hazy on hor,
1GEE idee id.
Tid. 5 id. ; id.
ich adi id.
Dense bank of cir.-str. and haze on E. hor.; wo. of
| Cirro-strati; cirri and haze.
HovurLy METEOROLOGICAL OBSERVATIONS, JUNE 12—15, 1845. 197
THERMOMETERS, WIND.
: Sk
= Te ' vate eden Species of Clouds and Meteorological Remarks.
ry. et. ;
58-7 : : . . . Cirro-strati; cirri to north,
57-6 ; c : : . Id. ; id.
56-0 : . . : : Cirro-strati; cirri, coloured red to NNE.
: : ts id.
: id. [the ground. |
cirri, coloured crimson to NE.; mist on
Strips of woolly cirri to NW., radiating from SW. and NE. ; hazy.©}
liga very hazy.©
Glee id. ©
Patches of scud and woolly cirri round horizon. (0)
Patches of cumuli ; woolly cirri and loose cirro-strati. ©}
Id. ; band of woolly cirrus lying from NE. to SW. ©]
Id. ; woolly cirri and cirro-strati. (Ss)
Woolly cirri and cirro-strati; patch of scud to W. O}
!
h.
1
2
3
4
5
6
7
8
9
0
]
2
3
U
1
2
3
4
5
6
7
8
9
0
1
2
3
4
©
patches of scud to 8S. ©
id.
ee id.
Patches of cumuli to SE. ; diffuse cirri to N.
; id.
id.; haze on E. hor.
id. ; id.
Cirri and haze.
Id.
Cirrous haze on horizon; faint lunar corona.
Cirro-strati to N.; cirri to SW.
VvvO000000
Cirro-strati to N.; streaks of cirri forming.
Cirro-cumulo-strati.
cirri.
id.
lying in ridges, in some places.
tufts of curled and woolly cirri. ©
Scud; patches of cir.-cum.-str.; sheets of woolly and linear cirri,
Id.; cirro-strati; cirrous mass. POOR SES
Id. ; id. ; cirro-cumulo-strati.
Id. ; cirro-cumulo-strati; cumuli; woolly cirri.
Scud and loose cumuli; cirro-strati; woolly cirri; haze.
Id. ; idee ids; id. ©}
Id.; woolly cirri; cirrous haze; solar halo.©
Cirro-cumulo-strati ; cirrous haze ; woolly cirri; halo.6}
Loose cumuli, moving in two currents; woolly cirri. ©
Woolly cirri; patches of scud and cumuli.
Cumulo-strati to S.; cirri.
Woolly cirri; cumulo-strati; faint solar halo. cS)
IGE cir.-str. ; a slight tendency to a parhelion. @
Cirro-cumulous scud ; woolly cirri.
Id. ; cirro-cumuli, cirri, and cir. haze. ))
Id. ; id., id.
Id. ; id.
64-2 Sunday—Overcast, with thick scud and cirro-stratus.
53-9 | 1- : : : Cirro-strati.
54-0 . . . . Id.
53-9 . : : : Id.
53-9 i ; ‘ : Id.
DH SODIAMAWNIHEOHNEHSOHIAM
ane
NN SS Orr (Ole ee
SmMONEHENONO TAMAS
—
PRK BOR ADNONWHADOD MH
Mitercamerrr|
Ls)
o
June 124 135 (1h 10™ a.m. Mak. M.1T.) Strong twilight, the smallest type read with ease.
June 124 16 20™. The mist on the ground has a purplish tinge at some places.
June 13212". Observation made at 12h 5m,
June 144 0b, Observation made at 02 5™,
MAG, AND MET. oss, 1845. 3D
198 Hourty METEOROLOGICAL OBSERVATIONS, JUNE 15—18, 1845.
Time. ain BP, Dry.
16
17
18 0 577 || 58-5
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, S. = 16, W. = 24. Ti
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Wet.
52:5
52-8
52-3
51-7
51-8
51-0
52-0
52-0
52-7
52-0
53-6
56-1
THERMOMETERS.
Dee eee POF
June 154 214. Observation made at 21» 10™,
June 184, New turkey feather vane erected to-day.
WIND.
Maximum
force in | Prom
14, | 10™.
Tbs. |bs. | pt.
0-0 | 0-0
0-0 | 0-0
0-0 | 0-0
0-0 | 0-0
0-0 | 0-0 6
0-0 | 0-0
0-1 | 0-1 9
0-1 /0-1 | 10
0-1 |0-1 | 16
0-1 |0-1 | 17
0-1 |0-1 | 20
0-2 |0-1 | 19
0-1 |0-2 | 20
0-2 |0-1 | 20
0-1 |0-0 | 20
0-0 | 0-0 | 20
0-1 |0-0 | 22
0-1 |0-0 | 20
0-0 | 0-0
| 0-0 0-0 | 20
10-0 | 0-0 | 22
0:0 | 0-0 | 20
0:0 | 0.0 | 22
0-0 | 0-0 | 20
0:0 | 0-0 | 20
0:0 |0-0 | 24
0-0 | 0-0 | 23
0-1 | 0-0
0-0 | 0-0 | 17
0-0 | 0-0
10-1 | O-1 8
0-1 | 0-1 6
10-2 | 0-1 4
0-2 | 0-1 | 10
| 0-2 | 0-1 4
10-1 | 0-1 6
0-1 | 0-1 8
|0-1 | 0-0 4
0-2 | 0-1 6
0-1 | 0-0
0-0 |0-0 | 24
0-0 | 0-0
0-0 | 0-0 | 17
0-0 | 0-0
0:0 |0-:0 | 16
'0-0 | 0-0 | 18
0-1 |0-1 | 20
0-1 | 0-0 | 20
|0-1 |0-0 | 20
| 0-1 | 0-0 |
/0-0 | 0-0 |
0:0 |0-0 | 18
0-1 | 0-0 | 18
0:0 | 0-0 | 22
'0-1 | 0-0 | 16
0-0 0-0 | 20
Clouds,
Sc. : C.-s.: Ci.,
moving
16:
16:
from
ia:
a0 4
Sky
clouded.
| Seud; dense cirro-stratus ; rain"">
Species of Clouds and Meteorological Remarks,
Cirro-strati.
Id. and scud ; smart shower.
Id. ; nearly homogeneous ; rain”?
ids ides rain??
Patches of scud to W.; dense cirro-stratus,
Scud and cum. on NW. hor. ; dense cir.-str. ; rain
Td: = id.
Scud; cirro-strati; cirrous mass; rain’
ides ad. id.
dee id. ; id.
Ids; 1d..3 id.
Ides id.; scotch mist.
Ide: id.
Id.; cirro-cumulo-strati ; occasional showers. —
Loose seud ; cirro-stratous scud; _ id.
Id. ; id.
Ids 5 id. ;
Cirro-stratous scud.
Scud and cirro-stratus.
drops of rain,
Id. ; very light drizzle.
Scud and cirro-stratus ; very light drizzle.
Id.
ids 5 id.
Loose low misty scud to N.; scud; dense cir.-str.; ra
Nearly as before, clouds more homogeneous ; rain’
Loose misty scud, moving very slowly ; loose cir.-str. ; cir.-cu
Scud and cirro-cumulo-stratus.
Scud ; cirro-strati; cirro-cumulo-strati ; cirri.
tdi: id. ; id.
ida id..: id.
tds idisy3 id.; drops of rain.
Id.; cirro-cumulo-strati.
Id. ; id. ; rain?”
Id. ; ides id.
Id.; thick cirrous mass ; rain! ; showers?— sineg
Id. ; id.
Id.; dense cirro-cumulo-strati and cirro-strati.
Id.; dense cirro-strati; misty on horizon.
Id. ; id. ; id.
id. niles id.
ids: ide s id.
Iisiee id.
Nols id.
Scud ; dense cirro-strati.
Id.; cirro-strati; cirrous mass.
dbs 1a, cumulo-strati to E.
Cirro-cumulo-strati ; wavy cirro-str. ; loose scud to
Sky covered with wavy cirro-strati, dark blue to ¥
Cirro-cumulo-strati ; wavy cirro-strati ; cum.-str. t
Dense cirro-stratus.
lige drops of rain.
Id. ; id.
Clouds homogeneous ; rain”®
Dense cirro-stratus ; rain’?
Id. ; drops of rain.
Hourty METEOROLOGICAL OBSERVATIONS, JUNE 18—20, 1845.
THERMOMETERS.
WIND.
60-4
62:5
65:7
63-4
65-0
67-6
67-2
67-3
67-7
63-0
59-9
876
880
Wet.
53-9
Diff.
6-0
Maximum
force in |Rrom
1h, |10™,
i
=
nS)
esesoosoesos
DponweepeHeeeRe
oS
AAI
pt.
16
Clouds,
Se. : C.-s.: Ci.,
moving
from
30:
Bills
: 28
Sky
clouded.
199
Species of Clouds and Meteorological Remarks.
Dense cirro-stratus; drops of rain.
Patches of scud; dense cirro-stratus.
Masses of thick scud ; id.
Thick electric-looking scud; dense cirro-strati.
Scud; dense cir.-str.; much haze; rather electric-looking.
Td. ; id. ; id.
Id. ; id. ; id.
Id. ; ids: id. ; electric-looking.
Patches of scud ; dense homogeneous cirro-strati; drops of rain.
Scud and dense cirro-stratus.
Id. ; drops of rain.
Id.; rain!
Rain?
Seud and cirro-strati.
I@ise rain!
Id.
Scud ; cirro-cumulo-strati; cirro-strati.
Seud and loose cumuli; cirro-strati; woolly cirri.
Cirro-cumulo-strati; cumuli; id; id.
oO
lol cirro-strati; patches of scud to N.©
Scud and loose cumuli ; cirro-strati. ©
Id.
Id.
Id.
Id.
Cirro-cumulo-strati and cirro-strati.
Seud and cirro-stratous scud.
Cirro-stratous scud ; cumuli.
Id.
Td.
Id. ; eumuli. (2)
Id. ©
Id. ©
Cirro-cumulo-strati ; cirro-strati.
Cirro-strati. y
Cirro-cumulo-strati to N. dt
Cirro-cumulo-strati to N. »)
Id.
Thick scud.
Seud ; cirro-cumulo-strati.
Id.
Id.; cirri.
Id.; cirro-stratous scud.
licks id.
Seud and loose cum. ; cir.-cum.-str. ; cirri. e
Cirro-stratous scud ; id.
Seud and loose cumuli. S)
Id. ; cirro-strati. o)
Id. ; id. (0)
Id. ; id. 0)
Id. ; cir.-cum.-str. ; cir.-str.; cirri ©
Id. ; id. ; id. e
Id. ; ides: id.; cumuli.©
Loose cum. and cum.-str.; cirro-strati to NW. ©
Cumulo-strati; cirri and cirro-strati. 0)
Cirri and thin cirro-strati; scud and loose cumuli. ©
. he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. =/8,S.= 16, W.= 24. The
tions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Gott BaRo-
Mean METER
Time at 32°
Gy ast in
20 9 || 29-887
10 886
11 886
12 880
13 || 29-869
14 855
15 850
16 833
il7/ 833
18 829
19 829
20 821
2 830
22 839
23 839
21 0 830
1 813
2 809
3 810
4 814
5 808
6 811
7 804
8 814
9 830
10 837
11 837
12 846
22 13) 29-785
13 || 29-822
14 829
15 831
16 840
7 850
18 859
19 860
20 872
21 872
22 869
23 871
23 0 863
1 859
2 851
3 843
4 827
5 828
6 823
i 824
8 823
9 $20
10 |- 818
11 817
12 807
13 || 29-800
14 791
Hovurty METEOROLOGICAL OBSERVATIONS, JUNE 20—23, 1845.
THERMOMETERS.
WIND.
Maximum
Dry. | Wet. | Diff. force in |From
14, |10™,
° ° ° lbs. | Ibs. | pt.
56-4 52-2] 4-2 |0-3 |0-0 | 24
54-3 | 50-4 | 3-9 | 0-1 |0-0 | 20
53-0 | 48-7 | 4-3 | 0-1 |0-0 | 24
53-9 | 50-7 |3-2 | 0-2 |0-1 | 20
54-3 | 50-6 | 3-7 ||0-1 |0-0 | 23
53-0 | 50-3 | 2-7 ||0-2 | 0-1 | 20
54-0 | 50-7 |3-3 || 0-2 |0-2 | 21
54-9 |51-0 |3-9 ||0-5 |0-3 | 20
54-9 | 51-3 | 3-6 || 0-4 |0-3 | 22
56-4 52-8T 3-6 || 0-4 |0-3 | 20
56-9 53-24 3:7 ||0-7 |0-8 | 22
58-0 | 54-3 | 3-7 ||0-9 |0-9 | 22
60-1 | 56-0 | 4-1 || 0-7 | 0-2 | 23
60-6 | 56-8 | 3-8 ||0-5 |0-1 | 20
61-6 | 58-1 |3-5 ||0-4 |0-1 | 24
64-1 | 58-7 |5-4 || 0-4 |0-1 | 26
65:6 | 57-9 |7-7 || 0-7 |0-8 | 28
66-7 | 57-8 | 8-9 ||0-9 | 0-6 | 26
65-1 | 57-0 |8-1 ||0-9 |0-7 | 24
65-0 | 56-5 |8-5 | 1-1 |0-3 | 24
64-3 | 55-6 | 8-7 ||0-8 |0-6 | 26
62-5 55-2T 7-3 |\0-5 |0°3 | 26
62-4 | 56-4 |6-0 ||0-3 |0-2 | 30
61-2 | 56-8 |4-4 || 0-4 | 0-3 | 24
57-8 | 52-6 |5-2 ||0-3 |0-1 | 10
56-2 51-0} 5-2 ||0-2 |0-3 | 30
54-3 | 50-3 | 4-0 ||0-1 |0-0 | 28
51-8 | 48-9 | 2-9 ||0-1 |0-0 | 26
60-4 | 53-8 |6-6 || 0-7 |0-2 | 22
46-0 | 45-0 | 1-0 || 2-4 | 0-1 | 20
45-6 |44-2 | 1-4 ||0-1 |0-0 | 22
45-2 |43-7 |1-5 ||0-1 |0-0 | 23
44-7 |43-0 | 1-7 || 0-2 |0-2 | 23
45-1 43-7 1-4 ||0-5 |0-0 | 22
47-0 | 44-8 | 2-2 ||0-3 |0-4 | 24
50-6 | 46-7 |3-9 | 0-5 |0-4 | 24
52-7 |47-8 |4-9 ||0-4 |0-3 | 22
55-6 50-34 5-3 || 0-3 | 0-1 | 22
56:0 | 50-2 |5-8 || 0-4 |0-4 | 23
56-7 | 50-0 |6-7 ||0-4 |0-6 | 22
60-7 | 53-2 | 7-5 || 0-4 |0-4 | 24
60-4 | 52-8 |7-6 10-5 |0-4 | 25
60-9 | 51-0 |9-9 ||0-5 |0-5 | 29
61-7. | 53-0 | 8-7 || 0-4 | 0-2 | 30
63-0 | 55-3 |7-7 ||0-4 |0-3 | 26
62-2 |55-2 |7-0 ||0-4 | 0-3 | 24
60:6 |54-6 |6-0 | 0-4 |0-3 | 23
60-0 | 54-3 |5-7 110-4 |0-3 | 25
59-3 | 54-6 |4-7 ||0-3 |0-1 | 24
57-3 |53-7 |3-6 ||0-5 |0-2 | 22
54-0 | 51-9 |2-1 || 0-2 |0-0 | 25
51-9 | 50-5 | 1-4 ||0-1 |0-1 | 20
49-3 | 48-3 |1-0 ||0-1 |0-1 | 15
49-4 |48-3 |1-1 || 0-3 |0-2 | 21
48-3 |47-7 |0-6 ||0-2 |0-1 | 18
pt.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.=8, 8.=16, W.= 4,
motions of the three strata of clouds, Sc. (seud),
from
pt.
| | ror
Clouds,
Se. : C.-s.:Ci.,
moving
pt.
Sky
clouded.
Species of Clouds and Meteorological Rema
Cirri and cirro-strati.
Cirro-strati; cirri and cirrous haze; red to
dy: cirro-cumulo-strati.
IGEE id.
Cirro-strati ; cirro-cumulo-strati.
Id. ; id.
lids; clouds tinged red to E.
Id. ; mass of cirro-stratus. ;
Id. ; dense cir.-str. ; cum. to W.; str. to E, andon Ch
Cirro-stratous scud ; cir.-str. ; woolly and mottled
Loose scud ; thick cir.-str. and cir.-str. seud; cirri
Seud and cirro-strati,
Seud ; cirro-strati.
Scud and cirro-strati.
Id.
Loose cumuli.
iGhe patches of cirri.
des cirri and cirro-strati near horizon.
Id. ; id.
lide. streaks of cirro-stratus near horizon.
ais: cirro-strati and cumuli on horizon,
Cirro-cumulo-strati ; woolly cirri. :
ids id.
Id. : 1d cumuli to
Cirro-stratous scud ; cirro-strati; cirri.
Id. and loose cumuli.
Seud ; cirro-strati; light cirri.
Sunday—The mean quantity of clouds about 6; suns
Woolly cirri and cirro-strati radiating from NNY
Woolly cirri and cirro-strati.
Diffuse cirri; cirro-strati; patches of scud to
Cirri and sheets of cirro-strati.
Cirro-cumuli and cirro-strati.
Id. ; scud on Cheviot.
des haze on horizon.
ihe scudand loose cum. to
Cirro-stratous scud ; loose cumuli; cirri.
Cirro-cumuli and eirro-strati; cumuli; cirri.
Scud and loose cum. ; detached cir.-cum. ; woolly cir.-cum., ; @
Loose cumuli ; icicle « ; cirri.
Seud and loose cumuli; cirro-strati; very hazy 0 on |
lies ids id.
isle ida cirri; haze.
Tidl i ida. id.; “alm
Cirro-strati and cirro-cumulo-strati; scud; cum.; cum.-str,
Cir.-str. ; cir.-cum.-str.; masses of seud and loo!
Loose cirro-strati ; ale strati to E.; masses ¢ of
Id. ; masses of scud.
Thin Have ; cirro-stratous scud to E.
Thin cirri and cirrous haze; cirro-strati on horiz
Gls id. 4
Thin cir. and cir. oe cir.-str.; patches of scudto N.
Thin cir. and cir. haze; cir.-str.; patches of scud to N,; lunar
1h s ad: id. ;
C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
HovurLy METEOROLOGICAL OBSERVATIONS, JUNE 23—25, 1845. 201
THERMOMETERS. WIND. >
, Clouds,
Baa) BAzO- = aes Se.: C.-8.:Ci,|| Sey ;
: aa Dry. | Wet. | Diff force in |rom inoying clouded. Species of Clouds and Meteorological Remarks.
15,/10™,
h in. 2 s 2 lbs 1b pt. || pt. pt. pt 0—10,
5 || 29-770 || 49-0 | 47-8 | 1-2 || 0-3 | 0-1 | 26 || —:29:— || 3-0 |} Cirro-cumulo-strati ; cirro-strati ; cirri; lunar corona. ))
6 748 || 49-0 | 47-3 | 1-7 ||0-1 |0-1 | 22 || —:28:—]) 6.0 Id. ; dees id. y
7 724 || 48-5 | 47-54/ 1-0 ||0-1 | 0-0 | 20 || —:26:—|]] 7-0 Td. ; iol id. (2):
708 || 50-7 | 48-8 | 1-9 ||0-1 | 0-1 | 23 || —:24:— 8-5 IGUe id. ; id. ; cum.-str. to H.©
9 682 || 53-7 50-74 3:0 || 0-2 | 0-1 18 10-0 Cir.-cum.-str.; dappled cir.-str., like small cir.-cum. ; cir.-str. and cir. i
0 668 || 55-6 | 52-4 | 3-2 ||0-5 | 0-4 | 22 | 91 : 20°: —|| 10:0 Patches of loose scud; dense cir.-str, and cir.-haze. thaze. j
1 659 || 56-9 | 53-6 | 3-3 || 0-6 |0-1 | 21 || 20:—:—| 10-0 || Masses of scud ; dense cirro-stratus and cirrous haze.
2 638 || 58-6 | 54-5 | 4-1 ||0-5 |0-1 | 22 | 20:—:—|| 10-0 || Scud; dense cirro-stratus and cirrous haze.
3 605 || 56-8 | 54-5 | 2-3 |/0-1 | 0-1 | 24 | 20:—:—]| 10-0 IG. id. 5 rain?
Q 577 || 57-0 | 55-0 | 2-0 ||0-1 |0-0 | 16 | 10-0 || Scud and dense cirro-stratus ; continuous rain!”
\ 544 || 57-4 | 55-0 | 2-4 ||0-0 | 0-0 | 16 || 15:—:—|| 10-0 || Scud; dense mass above ; id.
2 506 || 58-2 | 56-0 | 2-2 ||0-2 |0-0 | 12 || 15:—:—|] 10-0 liGls 3 idee id.
3 474 ||59-5 155-7 13-8 ||0-1 |0-0 | 12 || 16:—:—|| 10-0 || Loose and eumulous scud ; cirro-strati; rain? »
1 445 | 58-2 | 53-7 | 4-5 ||0-1 |0-0 | O 10-0 || Heavy masses of cum. scud ; cir.-str. scud and cir.-str. |
5 430 || 54-3 | 52-3 | 2-0 || 0-2 | 0-1 0 || 31:—:—|| 10-0 || Thick scud; rain!”
5 430 || 53-S | 51-4 | 2-4 ||/0-3 |0-3 | 29 ||27:—:— | 10-0 lick 2 cirro-strati and a cirrous mass.
if 432 51-8 | 49-5 | 2-3 ||0-7 |1-0 | 31 || 27:—:—|] 10.0 lich ¢ id.; rain!
434 || 51-0 | 49-0 | 2-0 ||0-6 |0-2 | 30 || —:28:—|| 10-0 || Cirro-stratous seud; cirro-strati.
) 432 || 51-2 | 49-0 | 2-2 |/0-3 |0-3 | 30 || —:28:—|| 10-0 ices id.
) 432 ||50-9 | 49-2 | 1-7 || 0-2 |0-1 | 26 10-0 Id. ; id.
427 || 50-8 | 49-2 | 1-6 || 0-1 | 0-1 10-0 like id.
HY 425 || 50-7 | 48-4 | 2-3 ||0-2 |0-1 | 22 || 9-8 IGke id.
29-419 || 49-9 | 48-4 | 1-5 |/0-2 |0-1 | 22 10-0 || Cirro-strati on N. horizon ; rain®®
t 420 || 49-3 | 47-7 | 1-6 ||0-2 |0-1 | 24 6-0 Id.
PA 417 || 46-9 | 45-8 | 1-1 ||0-2 |0-1 | 22 | 3-0 Id
ha 419 || 46-7 | 45-4 | 1-3 || 0-2 |0-2 | 22 6-0 Id.
‘ 420 || 47-1 | 45-8 | 1-3 |/0-3 |0-2 | 28 0-7 || Patches of scud.
: | 425 || 48-6 | 46-7 | 1-9 ||0-2 |0-2 | 24 2-0 Id.
Ny 437 1 53-6 | 50-7 | 2-9 | 0-2 10-3 | 25 || —: 28: — 7-0 | Cirro-cumulo-strati and cirro-strati. ©
| 440 || 54-3 | 50-5 | 3-8 || 0-7 | 0-4 | 30 || 28:—:—]| 9-0 || Cirro-stratous seud ; id. e
|| 438 || 56-5 | 52-0 | 4-5 ||0-5 | 0-2 28:—:—j]| 9-8 || Loose cumuli; cirro-strati.
Py 6445 | 55-6 | 51-7 | 3-9 ||0-7 |0-5 | 28 |, 29:24:—]| 9-0 Id. ; cirro-cumulo-strati; cirro-strati.
$} 450 | 59-2 | 52-8 | 6-4 ||0-9 | 0-4 | 28 |, 28:25:—] 8-0 Id. ; id. ; id.; cumuli.
py} 451 61-7 | 53-7 |8-0 || 0-5 | 0-2 | 26 || 28:26:—1|| 6-0 Id. ; 1 4 © id.; cum.-str.
\e) 445 || 63-7 | 55-2 | 8-5 || 1-0 | 0-5 | 26 || 27:—:—|| 6-0 || Seud and loose cumuli; cumuli; id. ; id. ©
by 441 |/61-3 | 54.0 |7-3 || 0-7 |0-6 | 22 | 27:—:—|| 4.0 Td. ; id. : ia aay
hai 437 || 63-4 | 54-5 |8-9 ||0-7 |0-7 | 22 || 28: 28:— 6-0 Cumuli: patches of civro-strati; dark to NW., clouds slate-blue. ©
| | 449 || 62-2 | 55-2 |7-0 ||1-0 10-2 | 99 || 27:—:— 9-0 Id. ; cir.-str. ; fantastic columns of cum. to N.; cirrous-crowned cum..- }
} | 460 || 54:0 | 51-2 |3-8 || 1-0 |0-2 | 95 || 28:—:— 9.5 As before, but clearer to W.; rain2— since last. str. to NNW. 65
Ni) 457 || 57-0 | 52-7 | 4-3 ||0-4 |0-3 | 24 || 26:—:—] 8.0 || Cirro-stratous scud ; cumulo-strati round the horizon.
}}| 474 || 55-0 | 51-0 | 4-0 || 0-5 | 0-4 | 26 || 26:—:—] 9-0 || Scud; cumulo-strati; cirri; rain’?
MW 477 || 53-2 | 50-5 | 2-7 || 0-3 | 0-1 | 22 || 28:—:—] 9-5 Id. ; id. ; rain!
| 489 | 52-3 | 51-3 | 1-0 |/0-2 |0-1 | 20 |} 28:—:—|| 9.8 lel, 2 id. ; cirrito N.; clouds slate-blueto SE. |
] | 500 || 51-8 | 49.2 | 2-6 ||0-1 |0-0 | 24 |) 28:—:— 6:0 Id.; cir.-cum.-str.; linear cir., rad. from WNW.. clouds tinged red. |
‘ || 502 || 48-7 |46-9 | 1-8 ||0-1 |0.0 | 20 8-0 Id.; cum.; cum.-str. on hor.; lin. cir, and cir.-str.; slightly red to |
| 502 || 47-9 | 46-4 | 1-5 || 0-1 |0-0 | 20 7-5 || Id.; cumuli; cumulo-strati. INW.
: |} 29-511 47-0 | 45-3 | 1-7 ||0-0 |0-0 | 16 9-0 || Scud and loose cumuli.
Hy 6914 | 48-3 | 45-3 | 3-0 | 0-1 | 0-0 | 28 9-8 Id.
; } 518 || 47-0 | 44-8 | 2-2 |/0-0 |0-0 | 22 9-5 || Thick cirro-stratous scud.
| i 526 || 46-0 | 43-5 | 2-5 ||0-1 10-0 | 22 || 26:—:—|| 9-0 | Seud; cirro-stratous seud ; cir.-str., tinged with red.
a Wy 534 || 46-0 | 43-3 | 2-7 0-1 |0-1 | 18 ||20:—:25] 8-0 | Id; id. ; thick sheets of cirri.
| 533 || 46-0 | 43-5 |2.5 ||0-0 |0-0 | 18 | 20:—:—]] 3-0 | Scud; cirro-stratous scud ; patches of cirri. (2)
YW 537 || 47-3 44-97| 2-4 || 0-2 |0-1 | 24 || —:24:—]] 3-0 || Cirro-cumuli; woolly cirri; cirro-strati. (0)
Wy 537 || 47-8 | 45-4 | 2-4 0-2 | 0-4 | 24 || —:24:—] 3-0 liels = id. ; id. ; patchesof scud; cum. OQ}
4) 541 || 51-6 | 46-7]| 4-9 ||0-4 |0-6 | 25 ||26:—:— | 2-5 || Loose cumuli; cirro-strati; cirri. (0)
ie 544 || 54.4 | 48.2 |6.2 |l0-7 10-4 | 22 ||: 29:—|| 8-5 || Cirro-stratous scud; cumulo-strati; cirro-strati. (2)
fe direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.=8,S8S.=16, W.=24. The
mons of the three strata of clouds, Se. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
jme 244 19h, Observation made at 19» 9m,
fne 252.12 6m. A shooting star to NW., altitude 20°, moving towards SW.., inclined to the horizon about 30°.
_jne 252174. Some of the cirro-stratous scud spreading out like branches; dark and undulated to H.
_ | MAG. AND MET. ozs. 1845. 3E
|
-
202 HourLy METEOROLOGICAL OBSERVATIONS, J UNE 25—28, 1845.
THERMOMETERS. WIND.
PA Clouds,
ee anaes Maximum Ble OE a) Species of Clouds and Meteorologieal Remeenamn
Time. || at 32°. Dry. | Wet. | Diff. force in |Prom se clouded. P tT ur eee Te ;
14, {10™,
ok deb in. e o 7 Ibs. | lbs. | pt. || pt. “pt pt. 0—10.
5 23 || 29-550 || 53-8 | 48-2 |5-6 0-5 |0-3 | 20 || —:28:—) 9-9 || Cirro-stratous scud ; cumulo-strati ; cirro-strati ; eam
6 0 550 || 56-3 | 50-2 |6-1 ||0-2 |0-2 | 26 || 28:—:—|| 9-9 || Seud ; cirro-strati; cumuli. 4
1 554 || 58-2 | 51-1 | 7-1 ||0-3 |0-3 | 26 || 28:—:—J| 9-8 || Scud and loose cumuli; cirro-strati. [horizon.
2\| 552 ||59-3 |52-4 |6-9 |10-4 |0-2 | 26 | 29:—:—] 9.8 Id. ; id.; sky greenish on NI
3 549 ||57-0 | 51-8 | 5-2 | 0-3 | 0-3 | 28 || 28:—:— 9-3 Nd: : id; id. g
4 548 || 59-3 | 51-8 | 7-5 | 0-7 |0-3 | 28 || 28:—:— 9-5 ae id. ‘
5 548 57-7 | 51-3 | 6-4 0-6 | 0-4 | 28 ||27:—:—]| 9-9 || Thick semifluid scud ; cum. ; cir.-str. and cir.-cum.
6 554 || 59-2 | 51-2 |8-0 | 0-6 |0-5 | 30 || 28:—:—|| 9-5 || Thick seud ; cum.-strati ; cir.-str.; a shower since las
7 561 || 55-6 | 49.2 | 6-4 | 1-0 |0-3 | 30 || 26:—:—|| 9-0 || Cirro-stratous scud ; cirro-strati. :
8 571 ||53-0 | 48-7 | 4-3 ]0-4 |0-1 | O || 26:—:—)] 9-0 | Thick seud ; cirro-strati; a slight shower commencing
9 576 || 51-8 | 48-4 |3-4 || 0-1 | 0-1 0 || 25:—:—| 7-0 || Cirro-stratous scud ; loose cumulo-strati on horizon,
10 588 ||50-4 | 48-4 |2-0 0-0 |0-0 | 26 || 25: —:— 9-5 Id. :
11° 593 || 47-8 |46-8 | 1-0 ||0-1 |0-0 6-5 Td; id.
12 581 || 44-0 | 43-8 |0-2 | 0-1 |0-0 | 17 3-5 Id. ; cirro-strati. .
13 || 29-578 ||44-6 | 44-2 | 0-4 |/0-1 | 0-0 | 21 2-5 || Cirro-stratous scud ; cirro-strati.
14 573 ||44-1 | 43-5 |0-6 0-0 |0-0 | 18 6-0 Tdts cirro-cumulo-strati.
15 563 || 43-6 | 42-8 |0-8 | 0-1 |0-0 | 18 7-0 Id. ; cumuli; woolly and linear cirri
16 546 || 40-4 | 40-2 | 0-2 || 0-1 | 0-0 | 20 7-0 Tas; ids id.; cloudsz
17 549 ||42-5 | 42.0 |0-5 ||0-0 |0-0 | 16 6-5 Cir.-cum.-str.; dense cir.-str. to E.; cum.-str. to S., various cin
18 534 || 43-2 | 42-3 |0-9 ||0-1 | 0-0 8 ||—:24:— 7-0 Woolly cir.-cum. ; various cirri; cir.-str. seud ; cirro-strati; eum
19 529 | 45-4 | 44.2t) 1-2 ||0-0 |0-0 | 20 || —:24:-—| 4-0 || Cirro-cumulo-strati; loose cumulo-strati to N. and E
20 518 || 52-8 | 50-5}) 2-3 || 0-0 | 0-0 2 ||12:22:—|| 9-7 || Masses of scud and loose cumuli; cirro-cumulo-strati
21 504 || 54-0 | 51-3 | 2-7 10-1 |0-0 4 || 9:24:—|| 6-0 || Seud and cumuli; cirro-cumulo-strati.
22 490 || 59-1 | 52-7 |6-4 10-0 |0-0 | 12 || 10: —:— 9-8 ds id.
23 469 || 59-9 | 53-2 |6-7 ||0-2 |0-1 | 14 || 10: —:—J| 10.0 Ibe id.
O/ <0 451 || 59-3 | 53-0 | 6-3 ||0-3 |0-1 | 16 || 10: —:—|| 10-0 ids cirro-stratus. (ho:
1 429 ||59-2 | 53-3 |5-9 | 0-6 | 0-4 | 12 | —:16:—| 10-0 Thick cir.-str. clouds ; scud and loose cum. ; clouds electric-like n
2 419 || 56-9 | 52-1 |4-8 0-7 |0-7 | 6 || 14:14:—)| 10-0 || Scud; cumuli and cirro-stratous clonds. a
3 397 ||57-4 | 52-2 |5-2 0-9 |0-9 8 || 12:—:—]| 10-0 || Masses of loose cumuli; dense cirro-stratus and haz
4 374 || 56-0 | 51-3 | 4-7 || 1-3 [1-5 9 || 12:—:—/ 10-0 1G id. {
5 364 || 53-2 |50-0 | 3-2 || 1-2 |0-8 | 10 || 10:—:—|| 10-0 Id. ; id.; drops of ra
6 355 ||50-8 | 49.7 | 1-1 || 1-2 | 0-5 8 9:—:—|| 10-0 || Scud; rain? ;
rf 323 || 50-8 | 49-7 | 1-1 ||0-7 | 0-9 7 7:—:— 10-0 Nee 1d
8 302 || 49-6 | 48-5 | 1-1 ||0-8 | 0-5 8 || 8:—:—]| 10-0 Id.; dense cirro-stratus ; rain!—*
9 277 ||49-5 | 48-5 | 1-0 || 0-8 | 0-4 6 8:—:—| 10-0 igh = id: rain!
10 264 || 49-0 | 48-0 | 1-0 || 0-5 | 0-5 4 10-0 Id.; rain?
11 214 || 48-0 | 47-3 | 0-7 || 1-3 | 0-8 4 10-0 Id.; rain?~*
12 195 ||48-2 | 47-6 |0-6 | 1-8 | 1-3 5 10-0 Id.; rain!
13 || 29-163 || 48-8 | 48-2 |0-6 || 1-1 |0-8 4 10-0 || Seud; rain!
14 130 || 48-7 | 48-2 | 0-5 || 2-0 | 1-6 4 10-0 Id.; rain!
15 105 || 49-2 |48-8 |0-4 || 1-7 | 1-0 4 10-0 Id.; rain*
16 086 || 49-3 | 48-9 | 0-4 || 1-8 |0-8 4 10-0 Id.; rain!
17 078 ||49-6 | 49-3 |0-3 || 0-8 | 0-7 4 10-0 Id.; rain?
18 064 || 50-2 | 49-6 |0-6 || 1-5 | 0-5 4 10-0 Id.; rain?
19 060 || 50-8 | 49-8 | 1-0 | 0-7 | 2-0 2 2:—:—|| 10-0 Id.; rain?
20 055 150-3 | 49-2 | 1-1 || 2-6 | 2-8 1 2:—:—| 10-0 Id.; rain?
21 068 || 49-0 |47.6 | 1-4 ||6-1 | 3-7 1 1:—:—|} 10-0 Id.; rain”?
22 087 || 47-7 | 46-8 |0-9 || 7-0 | 4:8 0 0:—:—] 10-0 Id.; rain®®
23 110 || 47-4 | 45-9 | 1-5 ||5-3 | 4-2 0 0:—:—]| 10-0 Id.; rain®>
28 0 139 || 48-0 | 46-0 | 2-0 | 5-5 | 3-8 il 0:—:—| 10-0 Id.; rain?—*
1 168 || 47-7 | 46-0 | 1-7 || 4-3 | 3-0 0 |) 0:—:—| 10-0 Id
2 188 ||48-2 | 45-7 |2-5 || 3-7 | 2-3 0 | 31:—:—|| 10-0 Id
3 225 ||48-1 | 45-8 | 2-3 13-1 |0-8 | 31 || 30:—:—| 10-0 Id
4|| 253 | 50-2 |46-7 | 3-5 || 2-4 | 2-0 0 || 31:—:—}| 10-0 Id
5 274 || 50-7 | 46-7 |4-0 || 2-4 | 1-2 0 |}31:—:—|) 9-9 Id. ; cirro-strati ; cirrous mass.
6 31 || 30:—:— 9-5 ligha’s 1d": id.
301 || 50-0 | 46-3 | 3-7 || 1-4 ‘0-5
The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E.= 8, S.=16, W.= 24
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
WDE oOwMnaN,
—y
loo
KSonmvys3]3HMApwWw
WE SOOMDTHMAWMOH OWN
| The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, HB. = 8, S.= 16, W. = 24.
otions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Hourty METEOROLOGICAL OBSERVATIONS, JUNE 28—JuLy 1, 1845.
THERMOMETERS.
Dry. | Wet.
49:8
51-7
49-7
44-2
44-0
43-7
Diff.
KBEAWOHWaANWOANMASOHWOOCOA
203
MERE: Clouds,
a sae ge See eis Species of Clouds and Meteorological Remarks.
from
1h, | 10™.
Ibs. | lbs pt. || pt. pt. pt 0—10.
0-9 |0-3 0 |30:—:—j] 9-9 || Scud; cirro-strati; cirrous mass.
0-3 |0-3 | 31 | 30:—:—)|| 9-5 || Cirro-stratous scud; cumuli to S. ; cirro-strati.
0-2 |0-2 | 30 || 30:—:— | 8-5 |] Scud and loose cumuli; cirro-cumuli; cirro-strati.
0-1 |0-1 | 28 1-0 || Patches of seud and cirro-strati round horizon.
0-1 |0-1 | 28 0-7 || Masses of scud and cirro-strati on horizon.
0-2 |0-1 | 26 0:5 || Cirro-strati near horizon; sky very clear.
DO uOs00| 20 loos. all cae yeoman cumuli; cirro-strati; slight showers
about 25.
1-5 |0-1 | 12 10-0 || Scud and cir.-str.; rain”
0-3 |0-5 | 16 || 19:—:— J 10-0 Id.
0-5 |0-1 | 18 }19:—:—J] 3-0 Id. ; cumulito W. and§.; cir.-str.; woolly
0-2 |0-2 | 20 |} 21:—:—J] 8-5 Id. ; id. ; id. [cirri.
0-8 |0-4 | 20 || —:21:—]} 5-0 || Cirro-cumulo-strati; cirro-strati. (0)
0-8 |0-5 | 20 || —:22:—]} 3-0 Id. ; id. ; cum.-str.; nimbi to S.©
0-7 |0-7 | 17 || 22:—:—||. 2-5 || Cum. and cum.-str. on hor. ; patches of scud, loose cum.,
0-8 |0-6 | 20 |) 22:—:—] 2-0 || As before. 0) [and cirro-strati. ©
0-8 |0-7 | 18 || 22:—-:— || 6-0 || Loose cumuli; patches of cirro-stratus. ©
1-4 |0-7 | 20 | 21:—:—| 7-0 Id. ; cir.-cum.-str.; hazy cirri to S. (3)
1-4 | 1-3 | 20 || 21:—:—] 3-0 Id. ; cirro-strati to S. 2)
1-8 | 2-0 | 21 ||22:—:—]| 2-0 Td. ; cum.-str. ; masses of cirro-strati. ©
2-5 |1-8 | 20 || 21:—:24]] 7-0 Id. ; id.; cir.-str. ; woolly cirri. ©
1-5 | 1-5 | 22 || 20:22:—|| 7-5 Jil id. ; id.; id. e
eu ile se Se D1 vs SS AON. Td. ; id. ; id. ; shower! at 2h 30™.6
1-9 |} 1-4} 21 ||}21:—:—]| 9.8 Id. ; id. ; id. ; woolly cirri ; shower!
1-7 |0-8 | 20 || 20:—:—|| 9-5 Id. ; thick scud; raining to N.
1-4 |0-7 | 22 ||} 22:—-:— || 9.8 |) Thick seud ; cumuli and cumulo-strati to S.; rain!
0-7 |0-7 | 20 || 22:—:—| 9-8 Id. ; id.
1-0 |0-6 | 20 || —:22:—} 6.0 || Cirro-cumulo-strati; loose seud ; cirro-strati. ©
1-0 |0-2 | 24 || 19:22:— 8-0 || Scud; cirro-cumulo-strati ; id.
0-6 |0-2 | 20 ||19:22:—|| 9.0 | Ia; id. ; id.
0-4 |0-2 | 19 10-0 Id.
0-2 |0-4 | 20 10-0 Id. ; rain °°
0-6 | 0-4 | 20 10-0 || Scud.
0:4 | 0-3 | 20 10-0 Id.
0-3 |0-2 | 16 10-0 || Id.
0-1 |0-1 | 19 9:7 Id.
0-2 |}00/] 8 10-0 Id.; rain!
0:0 |0-:0 | 8 10-0 Id.; rain?
0-1 | 0-1 8 ||17:—:—|| 10-0 Id.; cirro-strati; cirrous mass; scud on Cheviot.
0-2 | 0-0 8 || 16:—:—|| 10-0 || Cirro-stratous scud ; id. ; rain?
0-1 |0-1 | 12 || 12:—-:—|| 10-0 || Scud; dense cirro-stratus ; rain®®
0-9 |0-8 | 14 10-0 || Seud on horizon ; id. ; rain?
0-5 |0-5 | 14 | 14:—-:—]|| 10-0 |] Patches ofscud ; id. ; rain2—3
2-1 |1-5 | 15 || 14:—-:—|| 9-9 || Seud; cirro-strati; loose cumuli to SE.
2.5 |2-0 | 18 |/18:18:—]| 8-0 Id.; loose cum, ; cir.-str.; cumuli; nimbi. (2)
4:0 }1-8 | 16 ]/17:—:—|| 9-8 Id. ; id. ; id.; showers occasionally. @
3-5 |1-0 | 20 || 18:—:—J]] 10-0 Td. ; id. ; id. ; id,
3-8 | 1-8 | 20 || 18: —:—]] 10-0 Id.; rain?
3-9 |5-2 | 19 | 19:—:—]] 10-0 d= Sd!
6-0 |5-3 | 19 || 20:—:—]) 10-0 || Id.; drops of rain.
4-6 |1-6 | 21 || 23:—:—| 10-0 Id. ; id.
2-8 | 1-7 | 22 || 23:—:—|| 10-0 Id.; rain’
2-3 |0-9 | 22 ||23:—-:— || 9-8 || Id.; dense mass of cirro-strati; sky to W.
of (ial | 20) 04 -255-— || 9:9 || Id. id.
1-6 | 1-1 | 22 |24:—-:—] 9.8 Id.; cirro-strati.
1-4 |0-8 | 22 9-8 || Scud and cirro-stratus.
The
204 Hour.y METEOROLOGICAL OBSERVATIONS, JuLY 1—3, 1845.
THERMOMETERS. WIND.
Gott Baro-
Mean METER Maximum
Time. || at 32°. || Dry. | Wet. | Diff.|| force in | from
1b, ,10™.
da. h. in. 2 eo e Ibs lbs. pt.
1 13 || 29-036 || 52-7 |49-9 | 2-8 |0-6 | 0-4 | 22
14 073 || 52-0 | 49-2 | 2-8 || 1-0 |0-9 | 23
15 111 || 52-0 | 49-0 | 3-0 || 1-1 |0-5 | 24
16 149 | 50-7 | 48-3 | 2-4 ||0.7 | 0-3 | 22
17 197 || 51-2 48.4 2-8 ||0-7 |0-7 | 23
18 237 || 52-6 | 49.4 |3-2 111-8 |0-8 | 24
19 285 || 54-0 | 50-0 | 4-0 | 1-6 | 1-3 | 26
20 332 || 55:3 |50-8 | 4-5 111-5 | 1:3 | 22
21 374 || 55-4 | 50-54) 4-9 | 1-1 | 1-2 | 22
22 395 || 56-7 | 51-0 | 5-7 111-5 | 1-2 | 24
23 441 || 58-0 | 51-0 | 7-0 || 1-3 | 0-4 | 20
PEG) 473 || 59-0 |51-7 | 7-3 11-5 |0-4 | 23
] 493 ||60-6 | 52-4 18-2 |0-7 |0-3 | 26
Pe 515 || 60-5 | 51-7 | 8-8 | 0-7 | 0-7 | 26
3 525 | 60-4 | 51-9 | 8-5 110-5 | 0-3 | 30
4 538 || 62-3 | 52-6 |9-7 ||0-6 | 0-4 | 28
5 547 ||62-5 | 52-7 |9-8 ||0-6 | 0-4 | 26
6|| 560 | 61-3 |53-74/7-6 || 0-2 |0-0 | 22
af 571 || 58-3 |52-9 | 5-4 110-0 | 0-0 | 22
8 583 || 56-8 | 52-41) 4-4 |0-0 | 0-0 | 20
9 590 || 53-9 | 50-9 |3-0 | 0-0 |0-0 | 18
10 604 |/51-8 | 49-8 | 2-0 | 0-0 | 0-0 | 18
it 617 ||50-3 | 48-5 | 1-8 ||0-0 |0-0 | 24
12 613 || 49-7 | 48-6 | 1-1 10-0 |0-0 | 17
13 || 29-613 |} 49-6 |48-3 | 1-3 10-0 | 0-0 | 28
14 600 || 49-6 |48-3 | 1-3 || 0-0 | 0-0 4
15 576 || 50-8 | 49-0 |1-8 || 0-0 | 0-0 4
16 575 || 50-4 | 49-4 | 1-0 ||0-0 | 0-0 4
7 577 || 50-4 |50-0 | 0-4 || 0-0 | 0-0 4
18 572 ||51-0 | 50-5 | 0-5 || 0-1 | 0-1 3
19 556 || 52-0 | 51-3 |0-7 || 0-1 | 0-2 4
20 544 | 52-4 | 52-0 |0-4 10-2 | 0-2 4
21 533 |53-0 | 52-5 |0-5 110-5 | 0-5 2
22 518 || 53-9 |53-4 |0-5 || 0-4 | 0-3 6
23 509 || 54-2 | 53-6 |0-6 | 0-6 | 0-5 6
3. «(0 484 || 53-6 | 53-2 |0-4 | 0-6 | 0-7 3)
1 477 || 54-9 | 54-3 10-6 || 0-7 | 0-3 3
2 466 || 55-3 | 55-0 |0-3 || 0-4 | 0-2 3
3 458 || 55-0 | 54-5 |0-5 | 0-4 | 0-3 2
4 416 || 55-6 | 55-0 | 0-6 || 0-4 | 0-2 3
5 391 || 56-6 | 56-3 |0-3 || 0-5 | 0-2 4
6 374 || 57-6 | 56-9 |0-7 || 0-4 | 0-2 4
Tf 363 || 58-8 |57-9 |0-9 || 0-3 | 0-1 3
8 350 || 57-6 |57-4 |0-2 || 0-2 | 0-2 3
9 342 | 56-5 | 56-4 |0-1 | 0-3 | 0-1 4
10 314 || 56-4 |56-4 |0-0 || 0-2 | 0-1 3
11 313 || 56-2 | 56-0 |0-2 ||0-1 |0-0 | 16
12 Silo odd 478 24. Ie Oe Onl 6
13 || 29-320 || 56-0 | 53-3 | 2-7 ||2-4 |0-8 | 16
14 333 || 54-4 | 52-1 |2-3 || 1-7 11-2 | 16
15 325 || 54-7 |50-9 | 3-8 11-3 10-5 | 16
16 316 || 54-0 | 50-7 | 3-3 ||2-9 | 1-7 | 16
17 321 || 55-0 |50-1 |4-9 ||3-3 |4-9 | 16
18 325 || 53-0 | 49-6 | 3-4 |14-5 15-7 | 16
19 391 | 52-4 | 50-8 | 1-6 || 4-9 | 2.7 | 18
20 452 ||54-3 | 51-2 | 3-1 {13-4 12-0 | 20
Clouds,
Se. : C.-s.: Ci,
moving
from
ROD AKA
|
|
15:16:—
4,12:16:—
21: 20:—
21:20:—
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Scud and cirro-stratus.
Seud ; cirro-strati and cirro-cumulo-strati.
Id.; cirro-strati; woolly cirri.
Cirro-strati, tinged with red to NE.
| Masses of cirro-strati ; woolly cirri and cirro-e nul
| Cirro-strati and cirro-cumulo-strati. :
| Patches of scud and loose cum. ; sheets of cirro-stra
'Cir.-str. scud; cir.-str.; woolly cir. ; patches of seu
ideas id.; cumulito N.; id.
Loose cirro-strati ; id. ; id.
Seud and cumuli round horizon. :
Loose cumuli; cumulo-strati; cumuli; cirro-strati
Seud and loose cumuli. ; i
I6Ge cum.-str. ; cum. ; cir.-str.
Scud ; cumulo-strati; cumuli; cirro-strati; cirri.
Id.; woolly cirri; cum.-str.; cumuli; cirro-strati
Woolly cirri ; cum.-str.; cum. ; cir.-str.; solar hale
Masses of scud and loose cumuli; woolly cirri.
Cir.-str. ; wo. cir. and cir. haze ; masses of cum. round
ile) 2 id. ; id, =
Idx; id. ; id.
Seud in patches to SE. ; thick cir. haze and woolly cir. ; sunset ver
| Scud ; cirrous haze; woolly cirri.
Id. ; id.
|
| Seud ; cirrous haze.
id= idee cirro-strati.
Cirro-stratous scud ; mass of cirro-strati.
Id: id. ; drops of r
1G byes id. ; . ram
nds" id. ; rain!
Misty scud ; cirro-stratous scud and cirro-strati; rai
Td. rain”?
licks rain”?
Tdi, s Seotch mist; rain®®
Td id. ; rain?”
Td. ; id. ; rain?? =
Thick Scotch mist ; objects invisible at half a mile
Mist ; objects invisible at 3 of a mile.
Nearly as before.
Mist at a mile; clouds homogeneous.
Mist ; objects invisible at 4 of a mile.
Mist clearing off ; homogeneous mass.
Cirro-stratous scud ; cirro-cumulo-strati. e;
Misty scud ; scud; loose cumuli; shower!” since 1
Scotch mist ; objects invisible at } of a mile.
Dense fog ; objects invisible at { of a mile.
Scud and haze round horizon.
Small patches of scud and cumuli on horizon.
Seud to W.
Seud and cirro-strati.
Id.; cirro-cumulo-strati.
lids; id. ; drops of rain.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, S.=16, W.= 24. ‘Th
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 1
July 247, Observations made at 7» 30™,
Hovurty METEOROLOGICAL OBSERVATIONS, JULY 3—7, 1845. 205
THERMOMETERS.
WIND.
Dry. | Wet. | Diff.
AAAPWESSSSOSOS
YAHROSHHWEHRE EEK
Maximum
force in |Pyom
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Seud and loose cumuli.
ae cirro-strati.
3 cirro-strati on EK. horizon.
a3 range of cumuli to N.
: id.
q id.
as cumuli ; cirro-strati.
Masses of cumuli; cirro-cumulo-strati and cirro-strati.
Id. ; cirro-strati.
Piles of cumuli and cumulo-strati on N. horizon.
Patches of cumulo-strati on N. horizon.
Id.
Patches of cirro-stratus to N.; very clear.
Patches of cirro-stratus on horizon.
OODOVOO0O0O0 ODO
Send and cirro-stratus.
Id.
Cirri and cirro-strati to SE.
Id. to E.
Cir. and cir-.str. near hor.; a mass of cum.-cir.-str. to S.©
Ii 8 cumulo-strati to SSW.
A few cumuli on N. and S. horizon ; cir.-str. near hor. ©
Scud and loose cumuli.
©
id.
id.; woolly cirri.
ils e id.
c woolly cirri; cumuli.
Woolly cirri; cumuli and cumulo-strati.
Sheets of cirri; patches of scud; cumuli; cir.-str.
Cumulo-strati to EH. and N.; cirro-strati on horizon.
(OMONSHONOTO)
Sheets of cir.-str. and woolly cirri; cum.-str. to EH.
Cirro-cumuli ; woolly cirri and cirro-strati.
Cirro-cumulous scud ; woolly cirri and cirro-strati.
Id. ; cirro-strati and cirrous haze.
Id. ; cirro-strati.
Seud ; cirro-strati and cirrous haze.
Sunday—a.m. Masses of cir.-str., cir. haze, and solar
‘ halo. p.m. Scud and cir.-str. ; slight showers about 5".
Seud; rain!
OOO000
dense fog.
id.
id.
Jigs p id.; objects invisible at + of a mile.
Dense fog ; objects invisible at + of a mile.
Homogeneous clouds; the sun beginning to break through ; mist
Scud; cirrous mass; mist clearing off. aptae,
Id.; cumuli to N.; cirro-strati; cirri:and haze.
Id. ; id. ; id. ; id.
Cirro-cumulo-strati ; ide cirri.
Seud; cirro-cumulo-strati; cirro-strati; cirri.
98
‘S)
y The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, H. = 8, S.=16, W.= 24. The
otions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
MAG. AND MET, oss. 1845.
motions of the three strata of clouds, Sc. (scud), ©
July 72 155.
line lying NNW. to SSE.
8. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Loose muddy cirro-stratus moved upand covering nearly al] the sky except to NH., where the front of it is nearly as
206 Hour.ty METEOROLOGICAL OBSERVATIONS, JuLY 7—9, 1845.
THERMOMETERS. WIND. Clouds
oe are NIA Se.: C.-s. :Oi., Sky Speers uf Glduda and: Meteorciaetaela og
Time. |) at 32°. || Dry. | Wet. | Dif. || force in [ppom| "OVINE _ [louded. ia
1h, |10™,
ads eae in. c 2 2 lbs. | lbs. | pt. pt. pt. pt 0—10,
7 3 || 29-675 || 68-2 | 61-3 |6-9 ||0-7 |0-5 | 21 |19:18:—] 9-2 | Seud; cir.-cum.-str.; cir.-str.; sheets of cir. ; sa
4 677 || 68-0 | 60-0 | 8-0 || 0-9 |0-8 | 21 | 20:—:—|| 9-0 | Seud and loose cumuli; cirro-strati; cirri ;
5 678 || 70-0 | 61-8 | 8-2 | 1-0 {1-0 | 20 | 18:—:—|| 8-0 || Loose cumuli; woolly cirri to SE.
6 677 || 67-2 | 60-4f/ 6-8 | 0-8 |0-5 | 20 | 16:—:18] 3-0 Id. ; woolly cirri.
7f. 676 ||63-7 | 58-4 |5-3 || 0-5 |0-3 | 22 3.0 Id.; id.
8 684 ||62-8 | 57-7 | 5-1 || 0-4 |0-2 | 22 | —:—:18 4:0 || Woolly cirri; loose cumuli ; cirro-strati.
9 688 || 59-0 | 55-7 | 3-3 || 0-2 |0-1 | 19 || —:—:18]| 4.0 Id.; eumulo-strati ; cumuli ; cirro-strati
10 688 ||57-0 | 54-71} 2-3 || 0-1 | 0-1 | 23 4.0 Id. ; id.: ia
11 685 || 55-2 | 53-6 | 1-6 || 0-0 |0-0 | 22 6-0 || Seud and cirro-strati.
12 687 || 53-0 | 52-2 |0-8 || 0-0 |0-0 | 18 7-5 || Scud, cirro-strati, and cirri.
13 || 29-673 || 52-3 | 51-7 | 0-6 || 0-0 | 0-0 8-5 || Scud, cirro-strati, and cirri.
14 655 || 52-0 | 51-4 |0-6 ||0-0 |0-0 | 22 7-0 || Cirro-strati, cirrous haze, and patches of seud.
15 645 | 52-0 | 51-6 | 0-4 | 0-0 |0-0 | 24 | —:18:-—J]| 9-5 || Cirro-stratus, cumulo-strati, and cirrous haze to ]
16 641 || 51-4 | 51-0 | 0-4 || 0-0 | 0-0 —:18:—|| 10-0 || Cir.-str. and cir. haze ; clouds tinged with red to:
17 636 || 52-0 | 51-3 |0-7 || 0-0 |0-0 | 28 | —:18:—1 10-0 i i drops of rain.
18 628 || 53-6 | 52-7 | 0-9 ||0-0 |0-0 | 24 |—:18:—|| 8-5 enraintons scud ; cirro-strati.
19 613 || 57-0 | 55-OF| 2-0 || 0-1 |0-0 | 22 |} —:18:—|| 8.5 Id. ; id.
20 606 || 60-2 | 57-5 | 2-7 || 0-2 |0-1 | 20 }—:18:— 9-8 Id. ; id.
21 608 || 60-9 | 57-8 | 3-1 |0-0 |0-1 | 19 | 18:—:—]| 10-0 || Scud ; cumuli; cirro-strati; rain®?
29 601 | 61-7 | 59-0]} 2.7 |} O2 | 0-2 | 19 1 17:—:—] 9-5 Id.; cumulo-strati ; cirro-strati.
23 579 ||65-2 | 59-8 | 5-4 | 0-4 |0-4 | 19 118:—:—]|| 9.8 lds id. ; id.
Bi 562 || 66-7 | 60-0 | 6-7 | 0-5 |0-3 | 19 ||} 20:18:—|| 9.8 Id.; cirro-cumulo-strati ; cirro-strati.
1 574 ||57-6 | 56-2 | 1-4 || 1-2 |0-4 | 18 10-0 || Nearly homogeneous cirro-str. scud and cir.-str. ; 1
a) 553 165-0 | 61-3 | 3-7 | 0-3 |0-7 | 18 | 20: —: — 9-5 || Scud ; cumuli; cirro-strati ; cirri.
3 534 [64-1 |58-6 | 5-5 | 1-3 }1-3)19 }19:—:—|| 45 | qa: ia.
4 526 || 64-6 |57-6 | 7-0 | 2-1 | 1-4 | 21 }19:—:*|| 2.5 Tesh aw ars by iGhs id. ; nimbi.
5 520 | 64-3 |57-3 |7-0 | 1-8 |1-3 | 19 1-8 /-Id.;° id..; id.
6 513 || 63-3 | 57-8f|/ 5-5 | 1-7 |1-0 | 20 | 19:—:—] 2.5 || Loose cumuli; id; id.
7 517 || 59-9 | 55-8 | 4-1 ]1-0 |0-7 | 21 | —:18:—)| 8-7 || Cirro-stratous scud ; masses of scud and loose cumm
8 510 || 58-7 53-7] 3-0 | 0-7 |0-5 | 20 | 19:19: — 7-5 Thick scud ; sheets of cir.-str.; cum.-str. on NE. hor. ; drops of
9 501 || 56-4 | 53-7 | 2-7 |0-7 |0-2 | 18 2-5 || Seud to W..; cirro-strati; nimbi and cum.-str. to §
10 482 || 53-9 | 52-4 |1-5 | 0-6 |0-1 | 18 | 9-0 || Cirro-strati, cirri, and cir. haze ; masses of loose cu
iil 476 |53:4 | 52:3 1) 1-1 10-2 10-1 | 20 8-5 || Scud; cirro-strati ; rain!”?
12 || 463 [53-4 154-3 [1-1 | 0-2 | 0-1 | 19 | 10-0 | Ia; ia.
13 | 29-450. || 55-3 |54-1 | 1-2 | 0-5 |o-1 | 19 4-0 || Seud ; cirro-strati.
14 || 459. ||53-8 | 52.4 | 1-4 || 0.2 |0-1 | 23. | 8-0 | Id; id.
15 451 || 53-0 | 52-0. | 1-0 | 0-1 |0-0 | 24 | 22:—:—] 8.0 Soul cirro-cumulo-strati ; cirro-strati.
16 452 || 54-0 | 52-6 | 1-4 | 0-4 | 0-4 | 22 | : 92: — 9-8 || Cirro-str. seud ; cirro-strati; clouds tinged red toE
7 462 || 54-3 | 52-3 | 2.0 |0-6 |0-5 | 22 |—:23:—]) 8.5 Id. ; id. ; woolly cirri. q
18 466 | 54-0 | 52-3 | 1-7 | 0-3 |0-1 | 21 | 22:23:—|) 3-5 || Smoky Seidl: cin tienes atte id.; _cirro-strati
19 466 || 56-0 sah 2-6, 04 (0-6, | 22.99 .— - 9-9 || Thick seud ; cirro-strati. a
20 469 || 57-7 | 54-71) 3-0 | 1-2 |0-7 | 21 | 22:—:—T]| 9-0 || Seud; loose cumuli ; cirro-strati. q
21 || 490 |59-6 |55-3 |4-3 | 1-0 | 1-0 | 21 |23:—:—] 98 || Ia; id. ; id. [cirri to W
29 493 || 60-8 | 55-5 |5-3 || 1-6 | 1-8 | 21 ||23:22:—]| 8.7 Icke id. ; id.; _cir.-cum.-str. ; mo
23 || 506 ||63-0 | 57-4 |5-6 | 1-3 |0-7 | 20 || 292:—-:—||~ 9.9 Id. ; ides id.
9 0 |i 509 || 62-6 | 56-9 | 5-7 || 1-1 |2-0 | 20 23 :—:— 9-5 Hohe 1d. woolly cirri and cir.-str. ;
1 | 514 |/66-7 |60-3 |6-4 | 1.8 |1-0 | 19 }22:—:—]| 9.0 || Ia; id.; cirro-strati.
2) 525 62-1 | 56-1 |6-0 | 2-2 | 1-8 | 20 | 23:—:—|| 7.0 Td 4; id. ; id.
3 | 526 || 60-0 | 56-3 | 3-7 | 2-6 | 1-7 | 20 | 23:—:—|]| 9-8 Id. ; id.% 1h shower? at 2" 40)
4 523 ||58-0 | 54-8 | 3-2 12-6 |1-6 | 21 122:—:—]| 9.9 Id. ; id. ; Id; slight passing shi
5 520 160-3 | 55-5 |4-8 | 3-8 | 1-8 | 22 | 21 :23:—| 10-0 Id. ; nde id.; occasional sigh hor
6 522 || 58-6 | 53-9 | 4-7 | BO. eon) D2vel2 il 123) — i, OES Id.; cirro-cumulo-strati ; deep -strati.
7 526 || 55-9 | 52-7 | 3-2 || 2-1 |0-7 | 21 | 23:—:—]| 10-0 Id.; id.
8 5S |55:4 5283 3-0 Wes 0-5) | 22h 23 Sees Voto Id. ; Tabi id.
9 | 516 ||53-7 |51-8 | 1-9 || 1-4 |0-5 | 22 | —:22:— 9-0 || Cirro-cumulo-str. ; cir.-str. scud ; cirro-strati ; cirri
1o | 512 |/53-2 |51-4 11-8 0-8 |0-4 | 22 |—:22:—] 8-0 Id. ; ide id. ;
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, 8S. = 16, W. =a. 0
HourLy METEOROLOGICAL OBSERVATIONS, JuLY 9—11, 1845. 207
| nt
THERMOMETERS. WIND. @igadel
i Se. : C.=s.:Ci.,|| Sk . a
“calories eee soe movin g cee Species of Clouds and Meteorological Remarks.
rom
1b,| 10™
@ & o Ibs lbs. pt. pt. pt. pt. 0—10.
52-0 | 50-6 | 1-4 |/0-9 | 0-2 | 22 | 22:—:—J| 8-0 || Smoky seud; cirro-stratous scud ; cir.-cum.-strati.
52:6 |51-7 | 0-9 ||0-4 | 0.2 | 18 9:5 || Nearly as before.
52-6 | 51-6 | 1-0 || 0-3 | 0-2 | 18 9-5 || Scud; cirro-stratous seud ; cirro-strati; cirri.
52-7 |51-6 | 1-1 || 0-2 | 0-0 9-9 || Sheet of cirro-strati; sky on N. horizon.
52-3 |51-6 |0-7 || 0-0 |0-0 | 18 9-5 || Cirro-stratous scud ; cirro-strati radiating from SSE.
52-7 |52-0 |0-7 10-1 | 0-1 | 18 || —:22:—]| 9.5 Ibs id.
53-3 | 52-3 | 1-0 || 0-2 | 0-0 —:21:—| 9-5 Id.; id.
54-6 |53-4 | 1-2 || 0-0 | 0-0 | 18 || 22:—:—| 9-8 || Smoky and cirro-stratous scud ; cirro-cumulo-strati.
57-7 |55-8 | 1-9 || 0-0 | 0-0 22:—:—| 9-8 || Seud ; cirro-strati. ®
58-9 |55-8 |3-1 | 0-0 |0-0 | 28 || 22:—:—|| 9.5 leks id. ®
60-1 | 55-0 |5-1 || 0-0 | 0-0 0 || 25: 22:—|| 3-0 || Loose cumuli; cirro-strati and cirro-cumulo-strati. ©
62-5 | 56-2 | 6-3 || 0-0 | 0-0 25:22:—|| 8-5 Jigs id.
65-5 |58-5 | 7-0 |/0-1 | 0-1 | 28 | 24: 21:— |] 9-5 Hobie id. @
68-0 | 60-0 | 8-0 ||0-1 | 0-2 | 29 || 21:—:—| 9-0 leks id.
67-3 | 58-5 | 7-8 0-1 |0-0 | 28 9-8 Id. ; id. ; woolly cirri.
65-8 |57-2 | 8-6 ||0-3 |0-2 | 28 || 20:—-~:— || 9-5 Td. ; cirro-strati ; woolly cirri. @
67-3 | 58-9 | 8-4 }/0-2 | 0-2 | 31 || 24:22:—| 9-8 idles cir.-str.and cir.-cum.-str; woolly cirri.
66-4 | 57-4 | 9-0 0-4 | 0-3 | 25 |) 21:—:—|| 8-0 Ils woolly cirri; cirro-strati. ‘S)
66-3 |57-3 |9-0 || 0-4 | 0-1 | 28 ||; —:21:—J] 9-0 || Cirro-cumulo-strati; cirro-strati ; cirri; cumuli. e
66:3 |57-4 | 8-9 || 0-3 | 0-3 | 24 || 25:22:—}) 9-0 || Cum.-str.; cir.-cum.-str.; clouds hazy and electric-like
64-0 | 57-47| 6-6 | 0-3 | 0-1 | 30 || 25:22:—] 8-5 || As before; very black to E. ; rain there? [on hor. @
61-3 | 56-11) 5-2 || 0-2 | 0-1 | 28 || 25:22:—|| 8.2 || Cum-str.; cir.-cum. ; cir.-str.; hazy on horizon. ©
55-9 | 53-0 | 2-9 || 0-1 | 0-1 | 22 |, —: 22:19) 7-0 | Cir.-cum.-str.; curled cirri; piles of cum.-str. to ESE. ))
55-1 | 52-2 | 2-9 0-0 |0-0 | 21 | —:25:—] 9-0 Td): cirri and cirrous haze. y
53:5 | 52-2 |1-3 || 0-0 | 0-0 | 18 8:5 || Cir.-str. scud ; cirro-strati and cumuli on horizon.
53-6 | 52-0 | 1-6 || 0-0 | 0-0 | 20 ~ 9-0 Id.
51-5 | 50-4 | 1-1 || 0-0 | 0-0 0 5-0 Id.
50-8 | 49-6 | 1-2 ||0-0 | 0-0 | 24 8-5 || Cirro-cumulo-strati and Girro-strati.
49-6 | 48-4 | 1-2 |/0-0 |0-0 | 16 5:0 || Scud; cir.-cum. ; cir.-str. [tinged red to NE.
45-8 |45-3 |0-5 ||0-0 |0-0 | 22 2:5 Id. ; Tiel, id.; cir. haze on hor.; upper clouds
46-8 | 46-0 | 0-8 ||0-0 |0-0 | 18 |} 0:28:—| 9-5 || Thin scud; cirro-cumulo-strati.
50-3 | 49-5 | 1-0 ||0-0 | 0-0 | 22 1 2O°0 Td. ; cirro-strati.
52-8 |51-3 | 1-5 ||0-0 | 0-0 | 26 || 2:—:—|] 10-0 Tide: id.
55-8 | 53-0 | 2-8 || 0-0 | 0-3 2 3: 0:— 9-9 lids cirro-cumulo-strati.
55-6 |52-:8 | 2-8 ||0-4|0-6} O |} 2: 1:—] 9-9 ligh.e id.
54:0 | 52-9 | 1-1 || 0-6 | 0-6 8 3h eg oll Bos 9-0 Id. ; id. ; cum.; cir-str.; shower? lately.
56-4 | 53-2 | 3-2 || 0-8 | 0-8 3 4:—:—|| 10-0 || Seud and cirro-stratous scud. 6
53-3 |51-2 |2-1 11-3 |0-6 |) 2 || 3:—:—| 10-0 || Seud; drops of rain.
55-7 | 52-0 | 3-7 || 0-9 | 0-6 4 || 3:28:—||| 9-0 Id.; cirro-cumulo-strati; cirro-strati.
56-7 |52-2 14-5 0-8 |0-6 | 4 || 4:28:—] 9-5 Tdi ys id.
57-4 |53-0 | 4-4 110-6 | 0-3 Ae 9-0 Id. ; id. ; loose cum. ; cir.-str. (=)
57-5 |53-3 |4-2 0-6 |0-4 | 4 |) 3:28:—]| 9-8 liek s id.
56-0 |51-8 | 4-2 | 0-5 | 0-3 3 4:—:—| 10-0 Id.; mass of cirro-strati.
| 54-1 |51-1 | 3-0 |0-3 |0-1 | 4 || 0:—:—]| 9-7 || Scud and dense cir.-str.; sky to H. ; drops of rain.
54-0 | 51-2 | 2-8 || 0-1 | 0-1 3 0:28:—1|| 10-0 || Seud; dense cirro-stratus ; drops of rain.
53-7 |51-0 | 2-7 || 0-0 | 0-0 8 2:28:—|| 9.8 Id.; cirro-strati; sky on H. hor. ; breaking to W.
| 52-1 | 49-9 | 2-2 |/0-0 |0-0 | 4 || 28:28:—]) 10-0 || Thick scud and cir.-str. ; very thick and dark to W.
50-8 |49-2 | 1-6 |/0-0 |0-.0 | 6 | 27:25:—|| 9-0 || Scud; cirro-strati; drops of rain.
'50-2 | 49-1 | 1-1 ||0-0 | 0-0 7 10-0 Id.
50-2 | 49-6 |0-6 || 0-1 | 0-0 | 20 10-0 || Id.
'49-8 |49-1 |0-7 ||0-0 |0-0 | 30 10-0 || Scud; rain®
48-2 | 47-5 | 0-7 || 0-0 | 0-0 0 10-0 Id.; rain!
47-8 | 47-5 | 0-3 || 0-1 | 0-0 9 10-0 Id.; cirro-strati; sky to W.
145-9 |45.7 | 0-2 || 0-0 | 0-0 5-0 || Cirro-cumulo-strati; cirro-strati.
.45-4 | 45-2 | 0-2 {10-0 | 0-0 —:28:— 8-0 || Cirro-stratous seud ; cumuli; woolly cirri.
: he direction of the wind is indicated by the number of the point of the compass, reckoning N.=—0, H.=8,8S.= 16, W.=24. The
lions of the three strata of clouds, Se. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
july 1042. Observation made at 2h 20m,
r
“|
208
Gott BaRo-
Mean || METER
Time at 32°
id. he in.
11 18 || 29-619
19 634
20 646
21 665
22 666
243) 664.
12 0 659
1 655
2 659
3 651
4 683
5 683
6 684
a 692
8 700
9 708
10 TA
11 712
12 709
13 1 || 29-622
13 || 29-526
14 528
15 528
16 ei!
17 544
18 570
19 607
20 638
21 660
22 677
23 692
14 0 707
1 717
2 714
3 7835)
4 748
5 762
6 783
7 797
8 811
9 833
10 847
11 859
12 870
13 || 29-877
14 877
15 873
16 877
17 877
18 885
19 889
20 893
21 904
22 898
23 896
Hovurty METEOROLOGICAL OBSERVATIONS, JULY 11—14, 1845.
THERMOMETERS.
WIND.
Maximum
Dry. | Wet. | Dif. force in {Prom
1h, ; 102.
ce 2 L lbs. | lbs. pt.
47-0 |46-0 | 1-0 || 0-0 | 0-0 | 25
48:0 | 47-2 |0-8 || 0-0 | 0-0
51-4 |49-1 | 2-3 || 0-1 | 0-0 6
50-6 |48-5 | 2-1 || 0-0 | 0-0
51-9 |49-2 |2-7 || 0-1 |0-0 0
55-8 | 53-6 |2-2 ||0-1 |0-1 | 26
56-3 | 52-2 | 4-1 || 0-3 |0-0 | 30
58-0 | 53-2 |4-8 | 0-3 |0-1 | 24
59-7 |53-:0 |6-7 ||0-5 |0-4 | 24
60-5 |52-0 |8-5 ||/0-4 |0-5 | 26
60-9 |53-3 |7-6 ||0-6 |0-6 | 28
53-0 |50-3 |2-7 || 0-7 | 1-3 6
52-3 |50-4 |1-9 || 0-2 |0-1 6
55-1 {52-0 |3-1 || 0-1 |0-1 | 18
54-4 | 50-0 | 4-4 || 0-3 | 0-2 0
50-4 | 49-3 |1-1 ||0-1 |0-1 | 25
49-0 |48-2 | 0-8 || 0-1 |0-1 | 18
48-6 | 46-3 |2-3 ||0-1 |0-0 | 18
46-2 | 45-3 |0-9 ||0-0 |0-0 | 20
59-8 |55-0 |4-8 || 0-3 |0-1 | 18
52-3 |50-8 | 1-5 || 0-5 | 0-3 | 20
51-7 |50-1 | 1-6 || 0-3 |0-2 | 20
52-4 | 50-7 | 1-7 || 0-4 |0-3 | 21
52-9 |50-8 |2-1 || 0-4 |0-4 | 21
52-8 |51-0 | 1-8 ||0-2 |0-1 | 24
51-4 |50-0 | 1-4 || 0-5 | 0-4 0
49-3 | 48-6 |0-7 | 0-7 |0-3 2
49-7 | 48-3 |1-4 || 0-5 | 0-4 2
51-2 |48-3 | 2-9 ||0-6 |0-6 1
55-1 |49-9 | 5-2 ||0-7 |0-7 1
56-3 |51-5 | 4-8 ||0-5 |0-3 1
56-8 |51-8 |5-0 ||0-7 |0-5 | 30
58-6 | 52-8 |5-8 ||0-9 |0-7 | 28
60-1 |54-0 |6-1 | 1-1 |0-7 | 30
58-8 | 54-3 | 4-5 ||1-7 |0-3 | 30
56-3 |52-1 |4-2 || 1-1 |0-2 | 29
52-7 |52-5 |0-2 || 1-5 10-3 | 30
54-4 | 50-4 |4-0 || 2-7 | 1-2 3
56-0 51-6T 4-4 10-5 | 0-3 4
53-1 50-54 2:6 10-6 |0-1 | 30
50-9 | 49-5 | 1-4 110-2 |0-0 | 22
50:3 |48-6 | 1-7 || 0-1 |0-0 | 26
49-0 | 47-5 |1-5 ||0-2 |0-1 | 25
47-9 |45-9 | 2-0 || 0-5 |0-1 | 26
47-0 |45-7 | 1-3 || 0-2 |0-1 | 26
46-0 | 44-4 | 1-6 ||0-1 |0-0 | 25
44.2 |42-7 | 1-5 || 0-1 |0-1 | 26
44-8 |42-7 |2-1 || 0-1 |0-0 | 30
47-0 |44-5 | 2-5 |/0-2 |0-1 | 28
48-7 | 45-5 | 3-2 ||0-1 |0-2 | 27
50-4 |46-8 |3-6 || 0-2 |0-2 | 29
51-1 | 47-2 | 3-9 || 0-3 | 0-1 | 30
52-0 | 47-3 |4-7 || 0-4 | 0-6 | 30
54-6 | 48-9 |5-7 ||0-5 10-3 | 31
56-0 | 49-0 |7-0 || 0-9 10-7 | 30
Clouds,
Se. : C.-s. :Ci.,
moving
from
ales
OF
Sk
y
clouded.
9-8
a2
Species of Clouds and Meteorological Remarks,
Smoky scud ; cir.-cum.-str.; cir.-str.; cir. ; clouds very troubled
Loose scud ; dense cirro-strati. [slowl
Loose ragged scud ; loose cum. scud; cir.-str. mo
1G ee sheets of cir.-cum.-str. and cir,
Scud ; loose cumuli; cirro-strati.
Loose cumuli; cirro-strati to SE.
nimbus to W.
cumulo-strati to S.
id.
Loose cum., acted on by different currents ; cirro-strati to Wa
Loose cumuli; cumulo-strati; linear cirri; cirro-stra
Thick dark scud and cum, ; cum.-str, ; cir.-str.; shower? 10 a
Seud and loose cumuli; cirro-strati; cirri. 4
Thick seud ; woolly cir. moving rather quickly ; cir
Seud ; thick woolly cirri; cirro-strati. '
a cumulo-strati ; cirro-strati; cirri.
Seud ; Th AS id.
Cirro-strati ; cirro-cumuli; cirri.
Cirro-cumulo-stratus ; cirro-sirati.
1 Sunday—Dense cirro-stratus and scud; rain o
sionally after 2).
Cirro-stratus and cirro-stratous scud ; sky to N.
as id,
Thick scud ; cirro-strati.
Cirro-stratous scud ; cirro-strati.
Tdi» id.
Thick misty scud ; drops of rain.
Id. ; rain! in fine drops.
Misty scud ; cirro-stratous scud ; cirro-strati; rait
Cirro-stratous scud ; cumuli to N. id. ,
Cir.-str. seud ; cir-cum.-str.; cum. on Cheviot; woolly cir.
Scud and loose cumuli; cirro-strati.
Loose cumuli; cumulo-strati and nimbi ?
ibs id.
as |e id.
Id. ; id. ; rain falling to
Cir.- -cum. -str. ; woolly cir. ; cum. and nimbi round h
As before ; passing showers. (rainbow to 1
Thick scud and cumuli, falling in rain to SE., cum.-str.; cir
Seud and loose cumuli; cirro-strati. :
Scud and cirro-strati.
Scud and cirro-strati.
Id.
Id.
Id.
Seud ; cirro-cumulo-strati; cirro-strati.
Dense mass of cirro-stratous scud and cirro-strati
Cirro-stratous scud.
Td. .
ras very dense. j
Scud ; loose cumuli ; cirro-strati.
lke id.
July 124 4h,
July 144 6}.
wet bulb.
The reading of the barometer is somewhat doubtful.
The wet bulb found partially dry ; the difference previously to wetting it was 27. 74. A new piece of silk put om te
The direction of the wind is indicated by the number of the sae of the compass, reckoning N. = 0, EK. = 8, 8. = 16, W.= 2.
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. i
TOO AWN EHK OWN EK SODTAOMUAW NE CHHIBDNBWNHKSCWNKFOOCWNBARW YNREOCWNOUR WNP OF |
664
661
660
661
662
667
683
HourLy METEOROLOGICAL OBSERVATIONS, JULY 15—17, 1845.
THERMOMETERS.
WIND.
Maximum
Dry. | Wet. | Diff.|| force in [From
14, | 10™,
cs 2 9, Ibs. Ibs. pt.
56-0 | 48-7 |7-3 || 1-0 |0-4 | 0
59-9 |51-3 |8-6 |/0-7 |0-8 | 0
59-7 |50-9 | 8-8 || 1-5 |0-7 | 31
61-1 | 52-0 | 9-1 ||0-5 |0-7 | 4
59-7 |52-2 | 7-5 1-3 10-3 | 2
59-0 | 51-74| 7-3 ||0-4 |0-2 | 2
56-9 | 50-3 |6-6 |/0-7 |0-4 | 2
57-4 |50-7 |6-7 0-5 |0-3 | 3
54.0 | 48-7 |5-3 |/0-5 |0-2 | 6
51-3 | 48-01) 3-3 0-3 |0-1 | 4
49-8 |47-6 |2.2 0-1 |0-0| 4
47-7 | 46-2 | 1-5 |) 0-1 |0-0 | 20
48-3 | 46-9 | 1-4 10-0 | 0-1 | 22
48-2 |46-8 | 1-4 | 0-1 |0-0 | 20
47-8 | 46-7 | 1-1 | 0-0 |0-0 | 22
47-5 | 45-1 | 2-4 0-0 | 0-0 | 30
44-8 |44-0 | 0-8 |/0-0 | 0-0 | 24
44-0 | 43-1 |0-9 | 0-0 |0-0 | 20
46-7 | 45-0 | 1-7 | 0-2 |0-1 | 25
48-7 |46.4 | 2-3 ||0-2 |0-1 | 31
50-4 | 46-9 | 3-5 ||0-1 |0-0 | 26
53-1 | 48-2 |4-9 0-0 | 0-0 | 28
54-2 | 47-5 |6-7 || 0-1 | 0-1 | 28
56-4 | 50-4 |6-0 ||0-2 |0-1 | 18
60-7 | 53-4 | 7-3 0-2 |0-2 | 12
59-1 | 52-5 |6-6 |/0-1 |0-1 | 14
59-8 |51-6 |8-2 0-2 |0-1]| 8
63-4 | 55-0 | 8-4 0-1 |0-1 | 14
59-6 |53-8 |5-8 0-4 |0-4| 3
57-3 |51-7 |5-6 0-6 |0-9 | 6
54-9 |50-0T/ 4:9 |/0-8 |0-6 | 4
55-2 |50-2 |5-0 |/0-8 |0-3 | 4
52-9 |49-41/3-5 0-4 |0-1 |) 4
50-1 | 48-3 | 1-8 || 0-1 | 0-0
48-6 | 47-6 | 1-0 || 0-0 | 0-0 | 20
47-0 | 46-5 |0-5 | 0-0 | 0-0 | 16
45-7 | 45-4 |0-3 || 0-0 |0-0 | 24
44.2 | 44-0 | 0-2 ||0-0 | 0-0 | 18
42.0 |41-8 |0-2 0-0 |0-0 | 7
42.5 | 42-3 |0-2 |/0-0 |0-0 | 9
44.2 |44-0 |0-2 | 0-0 |0-0 | 20
46-4 | 46-0+/0-4 0-0 |0-0 | 2
47-9 | 47-0 |0-9 | 0-0 | 0-0 | 26
49.3 | 48-3 |1-0 0-1 |0-0 | 0
51-7 | 50-2 |1-5 |0-0 |0-0 | 4
53-2 | 51-74) 1-5 0-1 |0-0 | 3
54-7 |52-5 |2.2 0-1 |0-0 | 4
56-5 |53-7 [2-8 0-1 |0-1 | 4
58-1 | 55-3 | 2-8 ||0-0 0-0 | 18
57-7 |56-3 | 1-4 | 0-2 |0-1 | 14
58-8 |57-0 | 1-8 | 0-1 |0-0 | 17
60-0 | 57-8 | 2-2 || 0-1 | 0-0
59-8 |57-7 |2-1 | 0-1 |00) 4
60-8 | 58-4 |2-4 0-1 )00] 4
60-0 | 58-1 | 1-9 | 0-3 |0-5 | 22
58-4 |57-3 | 1-1 ||0-3 |0-0 | 22
Clouds,
Sc. : C.-s. : Ci.,
moving
from
Sky
clouded.
209
Species of Clouds and Meteorological Remarks.
Loose cumuli and cirro-stratous seud.
Loose cumuli. (0)
Id. ; cirro-strati. ©
Ifel. & id.
Id. ; id. 0)
Id.; id. ©
ly; id. ©
Cirro-cumulo-strati ; cirro-strati. (0)
Id. ; id. ©
IIel5 & id. (Oo)
Patches of seud ; dark ramified cirro-stratus to N.; cir.-cum.-str. »)
Loose seud ; cirro-cumulo-strati. »)
Dense scud.
Dense scud.
Seud ; cirro-cumulo-stratus ; sky in zenith.
Cirro-stratous scud ; cirro-cumuli; cirro-strati.
Il. = id.
lil id.
HIGl, 8 id. (0)
Id. ; cumulo-strati to N. ; cirro-strati. ©}
Loose cumnli; cirro-strati. a)
Id.
Td. oO}
Id.
Id. (2)
Thin scud ; loose cumuli. ©
Cirro-cumulo-strati; loose cumuli; woolly cirri. oO}
Loose cumuli; woolly cirri.
Id.; band of woolly cirri lying from NNW. to SSE.©
Band of cirrus from NW. to zenith ; cum. to S.and N.; haze onhor. ©
Loose cumuli; strips of linear and woolly cirri rad. from NW. (Ss)
Scud moving rather quickly ; loose cumuli; cirri as before.
Id. ; id. ; id. (0)
Cirro-stratous scud; cirri rad. from NW by W.; cir. haze on hor. ))
Loose scud ; cirri as before. }
Woolly cirri. }
Cirri and cirrous haze. }
Cirri and cirrous haze.
Fog, objects invisible at about 300 yards ; cirri.
Woolly cirri and loose cirro-strati ; fog, objects invisible at 250 yards.
Cirro-strati and cirrous clouds; hazy; fog-bank to HE.
A few patches of scud, in different currents; cir.-str. and cir. haze; 4
Dense cirro-stratus. [faint rainbow.
Loose scud in patches ; sheets of cir.-str. ; drops of rain. |
Thin scud ; sheets of cirro-stratus ; drops of rain.
Id. ; cirrous mass ; rain!
Id. ; id. ; rain’?
Scud ; cirrous mass ; rain?
lil, 3 id. ; fine rain”!
ae: id.
Td. ; nls € fine rain”?
Id. ; id.
Id. ; id.
Thick scud; cirrous mass; rain! [of rain. |
Thick scud to N. and W.; cir.-str.; sky to S.; drops }
Scud and cir.-str. ; occasional heavy showers since 64, |
——
uly 154 10% 9m,
A shooting-star of the first magnitude to S by W., moved from altitude 35° to near horizon.
® uly 164 64, The simple lines of cirri lie at right angles to the strips. The surface current is from NH., the scud current, which is about 2500
fit high, is from SW by W., the loose cumuli, perhaps about 3500 feet high, are from W by S., and the cirri, probably many thousand feet high,
afrom NW.
4 uly 16220, Observation made at 204 5m,
MAG. AND MET. oBs. 1845.
July 1745 15m, A thunder-shower+—S, the drops being large ; clouds thick and black to W.
3G
210
Gott.
Mean
Time.
OOnNanavurwnw
10
11
12
231
20 13
The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, H. = 8, 8.=16, W.= 24
Bako-
METER
at 32°.
971
29:979
29-975
HovurLy METEOROLOGICAL OBSERVATIONS, JULY 17—20, 1845.
THERMOMETERS. WIND.
Clouds,
Weeearirinn Se.: C.-s.: Ci.,
é j movin
Dry. | Wet. | Diff. Sapa From rac
° 2 2 lbs. | lbs. pt. pt. pt. pt.
56-1 |55-1 | 1-0 || 0-4 | 0-3 | 22
55-2 | 54-4 |0-8 || 0-3 | 0-1 | 22 || 92 :—:—
54-7 |53-6 | 1-1 || 0-2 |0-2 | 22 || 24:22: —
54-7 153-4 | 1-3 ||0-2 | 0-1 | 22
53-8 |52-4 | 1-4 ||0-2 | 0-1 | 22
53-2 |52-:0 |1-2 ||0-1 |0-0 | 20
52-3 150-9 | 1-4 ||0-2 | 0-1 | 20
51-4 |50-7 |0-7 || 0-1 |0-0 | 23
S10 W495 (eo WOe2 Ons 2205 =:
50-4 | 49-5 |0-9 ||0-2 |0-1 | 20 || 94: —: 25
52-0: | 50-6 | 1-4 || 0-2 | 0-3 | 20 | —:26:—
55-5 |53-0 | 2-5 || 0-3 |0-4 | 22 | 96.: 28 :—
55-4 | 52-4 |3-0 || 0-8 |0-2 | 23 || 96 :— : —
56-5 | 53-6 | 2-9 ||0-3 | 0-3 | 23 | 298: 26:—
58:9 | 54-7 | 4-2 ||0-3 |0-2 | 23 ||: 26: —
60-4 | 56-3 | 4:1. || 0:2 |0-1 | 23 | 97.-—:—
61-2 |56-0 | 5-2 || 0-3 | 0-1 0 || 26 :— : —
64-2 |58-3 |5-9 || 0-3 | 0-3 0
65-4 |58-6 |6-8 {10-3 |0-1 | 28 | 98:——:—
63-6 |57-7 |5-9 10-3 |0-0 | 31 || 298:—:—
62:0 | 57-0 | 5-0 || 0-1 | 0-0 6 |) 27 :—:—
65-0) 59:8: 5-2 0:2) | 0:1 |-22.)|— 139: —
64-5 | 58-3 |6:2 10-2 |/0-1 23 || = - 30: —
64:3 159-0 5-3 |/0-L 0:1 \322 ||]. 30: ——
59-6 | 56-4 |3-2 || 0-2 |0-1 4 ||—:31:—
57-7 | 55-3 | 2-4 10-2 | 0-1 oe || — RD ae
55-0 [53-5 | 1-5 || 0-2 | 0-1 4
53-1 |51-8 | 1-3 ||0-1 | 0-0 2 |i
50-4 | 49-8 |0-6 || 0-0 | 0-0 4 |}—:31:—
48-3 | 48-0 |0-3 ||0-0 |0-0 | 16 |
49-7 |49-2 |0-5 ||0-0 | 0-0 4
51-0 |50-5 | 0-5 || 0-0 | 0-0 4 | — =: 0: —
51-0 | 50-5 | 0-5 || 0-0 | 0-0 4 2: 0:—
51-0 |50-5 | 0-5 || 0-0 | 0-0 | 24
52-9 |51-9 | 1-0 || 0-0 | 0-0 | 25
53-7 |52-5 | 1-2 ||0-0 | 0-0 | 24
55-7 |54-3 | 1-4 ||0-1 | 0-0 | 25
56-7 | 55-4 | 1-3 || 0-1 |0-1 3 4:—:—
57-9 | 55-6 | 2-3 || 0-3 | 0-2 4 |) 4:—:—
58-2 | 55-3 | 2-9 || 0-3 | 0-4 6 4:—:—
60-0 | 56-4 | 3-6 || 0-4 | 0-4 6 4:—:—
58-3 | 55-0 | 3-3 |10-5 | 0-3 4 4:—:—
58-0 | 54-2 | 3-8 |10-5 | 0-2 5 o:—i—
59-2 |55-0 | 4-2 ||0-4 | 0-4 6 72-1 —
59-6 | 55-0 |4-6 ||0-5 | 0-3 6 6:—:—
58-7 | 54-0 |4-7 || 0-4 | 0-5 il 6:—:—
56-3 | 53-2 |3-1 110-5 | 0-3 6 6:—:—
55-6 | 52-5 |3-1 || 0-4 | 0-2 hi 5:—:—
55-1 | 52.4 | 2-7 || 0-2 | 0-2 4 5:—:—
54-2 | 52-0 |2-2 || 0-1 | 0-1 4 d:—i—
53-4 |51-0 | 2-4 || 0-0 | 0-0 6 ||
53-1 | 50-9 | 2-2 || 0-0 | 0-0 6
51-8 | 49-0 | 2-8 || 0-2 | 0-1 4 4:—:—
55:4 |53-2 | 2-2 ||0-7 | 0-7 3 —:i—
52-2 | 51-8 | 0-4 0-6 4
1-5
motions of the three strata of clouds, Sc. (scud), C
Observation made at 23 20m,
July 194 23.
Sky
clouded.
Species of Clouds and Meteorological Remarks,
Scud and eirro-stratus.
Id.
Seud ; cirro-strati.
Id.; cirro-cumulo-strati.
Id.; cirro-strati ; drops of rain.
Seud ; cirro-strati.
idl: ads > cirro-cumulo-strati.
Id, ; 0 id.
itd? id. ; id.
Thin scud ; woolly cirri ; cirro-cumulo-strati ; oie
Ce ens scud ; id.
Seud ; cirro-cumulo-strati ; cirro-strati ; cir,
Patehes of scud ; a uniform mass of cirro wea ,
ass id.
Dense cirro-stratus ; patches of seud to S.
Thick seud ; dense cirro-stratus.
Loose cumuli, and cirro-stratous seud.
Loose cumuli and cirro-strati.
Masses of thick scud and cumuli; cirro-strati.
A mass of black electric-looking scud to N.; cum.; eum,-str.;
Scud ; loose cumuli ; cirro-stratous scud.
Cirro-cumulo-stratus ; cumulo-strati.
Id. ; id.
Ides cirro-strati.
lisse ade cumulo-strati,
edt i: id. ; id.
Id. ; id.
Td. 4
Cir.-cum. ; cir.-str. near horizon ; mist on the grom
Cirro-cum.-str.; cir.-str. near hor.; mist on the gre
Dense mass of scud ? and cirro-cumulo-stratus. —
Cirro-cumulo-stratus.
Misty scud ; cirro-cumulo-stratus.
Homogeneous mass of misty seud.
Id.
Tah Scotch mist.
Ids s id.
Misty scud ; a dense mass of clouds.
Nas id.
leks id.
Seud ; dense cirrous mass.
Tay; id.
Edi id.
GU id.
Ida; id.
Td; id.
Id.; dense mass of cirro-stratus.
Tass id. :
Id. ; cir.-cum.-str. radiating from N., clouds breal
Tie id.
Cirro-stratous scud.
Id.
Scud, breaking.
Sunday—tThick seud ; a slight drizzle throughout ut
' of the day.
Homogeneous mass.
.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Hovurty METEOROLOGICAL OBSERVATIONS, JULY 20—22, 1845. 218
THERMOMETERS. WIND.
Clouds,
Se.: C.-s.: Ci.|| Sky
moving __|iclouded. Species of Clouds and Meteorological Remarks.
from
Maximum
Wet. | Dift.| force in [Prom
pt. pt. pt.
=)
woe COMIA AP
Homogeneous mass.
Id.
Id.
Id.
dee showers? since last.
Thick, nearly homogeneous, misty seud.
as mist at 2 miles.
liye mist at 5 miles.
Scotch mist; light drizzle ; objects invisible at 3 miles.
IGbe id. id.
Nearly homogeneous scud ; mist cleared off.
slight drizzle commencing.
slight drizzle.
slight mist.
id.
id.
Scotch mist.
id.
HBHSODNIRNKRWNHH Ow
Scotch mist.
slight drizzle.
id.
id. [miles.
Scotch mist; objects invisible at 5
Id. ; id. ; id.
Scud ; Scotch mist; objects invisible at 2 miles.
Id.; Ide id.
Thick misty scud ; Scotch mist and light drizzle.
IGE id.
; id.
919
AwAP AR AA AD
Id.; nearly homogeneous. [ drizzle.
Misty scud, in blue and yellowish bands to W.; slight
Nearly as before.
Id.
Id. ; drops of rain.
A few drops of fine rain.
914
917
918
919
920 :
917 0 | 48-3
907 ‘dO | 48-6
892 DO | 48-2
879 6 | 48-3
877 -0 | 48-0
875 7 | 47-7
870 -2 | 48-1
872 -2 | 49-1
' 876 8 | 49-4
870 ‘0 | 50-7
aN
Slight drizzle.
Homogeneous scud ; slight drizzle.
Id. ; id.
Id.; id.
he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.= 8, S.= 16, W.= 24. he
muons of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
ily 204.194, Observation made at 19 30™.
212
; Gott. || BaRo-
| Mean || METER
} Time. | at 32°.
decir ih amet
22 22 | 29.868
23 | 867
23° 0] 859
1 852
2) 849
3 846
4 842
5 838
6 836
a 839
8 836
9 829
10 830
11 827
12 827
13 || 29-825
14 821
15 813
16 808
lz 816
18 792
19 792
20 801
21 807
22 808
25 811
24 0 811
1 810
2} 806
33 805
4 785
5 774
6 769
i 768
8 764
9 762
10 756
11 755
12 742
13 728
14 wale
15 705
16|| 698
17 694
18 | 695
19 699
20 701
oil 701
22 698
23) 692
25 0} 692
1 687
2 674
3 | 673
4) 661
Sill 651
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, B. = 8, S.= 16, W. <2
Hovurty METEOROLOGICAL OBSERVATIONS, JULY 22—25, 1845.
THERMOMETERS.
Dry. | Wet.
52-4 | 50-9
52-4 | 51-0
53-0 | 51-4
55-4 | 52-4
55-0 | 52-1
54-7 | 52-2
59-7 | 52-3
54-7 | 51-9
Diff.
FOOMNW AH RO A
GUNN RO) i fe
OUNDorRNnNN UND
3:0
WIND.
Maximum
force in
135
10=.
motions of the three strata of clouds, Sc. (scud), C
From
PERE ONNOOOBR RW KRWWNWNWWNND NNN KNWNWHWKhWNNW
16
.-S. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Se.
wrmnrpAA AT
wp ww
Wwww ww hd bd ww
i
_
o
Dit
25):
Clouds,
: C.-s: Ci,
moving
from
Sky
clouded.
Species of Clouds and Meteorological Remarks,
Scud; misty.
Id.; slight drizzle.
Id.; id.
Scud breaking ; cirrous mass above.
Scud ; occasional showers.
Id.; drops of rain.
Id.
Id.; occasional showers.
Id.
Id.
Id. ; the upper clouds seem to be breaking.
Id. ; ; drops of rain.
Id.
Seud.
Id.
Id.
Id.
Cirro-stratous scud.
Misty scud ; slight drizzle.
Td. ; rain!
Scud breaking ; slight drizzle.
Seud.
Id.; rain? in a few minutes.
Id. ; dense cirro-stratus.
Id.; a tendency to break to S.
ida id.
Td.
Td.
Id. and cirro-stratous.
Id, id.
Td. id,
Id. id.
Id. id.
Id. id.
Id. id.
Id. id.
Id. id. 2
Id. id. ; very still. [drops of r
Clouds, in strips, radiating from SSW. and
Cirro-strati; drops of rain.
Scud ; cirro-strati.
Nearly homogeneous scud ; cirro-strati. 4
Td: ; id. ,
Cirro-stratous scud ; cirro-strati; cirro-cumulo-sit
ae: id. 4
Id. ; id.
Id. ; id.
dee id.
ide: id.
Id. ; id.
Cirro-cumulo-strati.
Id.
Iles loose cumuli.
Loose cumuli.
—_ - .
Hovurty METEOROLOGICAL OBSERVATIONS, JULY 25—28, 1845. 213
THERMOMETERS. WIND.
Baro- :
METER Maximum
at 32°. || Dry. | Wet. | Diff. force in /From
1h, }10™.
(i in. c 2 © lbs. lbs. pt.
29-646 || 65-7 | 58-6t/7-1 | 0-4 |0-3 | 24
648 || 62-3 | 56-0 |6-3 || 0-3 |0-3 | 27
657 ||57-3 | 53-7 |3-6 |10-2 | 0-2 | 22
662 || 54-0 | 51-2]/2-8 |} 0.2 |O1 | 22
663 | 51-7 | 49-3 | 2-4 |/0-2 |0-1 | 22
661 || 48-9 | 47-6 | 1-3 ||0-1 |0-0 | 21
660 || 49-0 | 47-6 | 1-4 || 0-1 |0-1 | 24
29.652 || 48-6 | 47-3 |1-3 |/0-1 |0-1 | 22
650 || 50-4 | 48-1 |2-3 |10-1 |0-0 | 24
636 || 50-2 | 48-4 | 1-8 || 0-1 |0-1 | 24
626 || 50-7 | 48-6 | 2-1 |/0-2 {0-1 | 22
622 ||50-8 | 49-1 | 1-7 ||0-1 |0-1 | 18
623 || 51-8 | 49-9 | 1-9 10-3 |0-3 | 23
627 || 52-9 | 50-7 |2-2 |/0-5 |0-3 | 19
626 || 54-3 | 52-0 | 2-3 || 0-3 | 0-4 | 20
623 || 55-3 | 52-5 |2-8 |/0-6 | 1-1 | 21
612 157-5 | 54-0 |3-5 || 1-1 |0-5 | 20
605 ||57-7 | 54-0 |3-7 |10-9 |0-9 | 22
603 || 59-2 154-8 | 4-4 10.9 |0-6 | 20
597 || 62-3 | 56-2 |6-1 || 1-4 |1-0 | 20
581 || 63-2 | 57-0 | 6-2 || 1-6 | 1-2 | 20
575 || 61-2 |56-2 |5-0 || 1-6 |0-6 | 21
555 ||61-7 |56-7 |5-0 || 0-8 | 0-8 | 20
550 || 63-0 | 57-8 |5-2 | 2-0 |1-2 | 20
546 || 59-8 | 55-4 | 4-4 |} 1-1 |0-8 | 18
541 || 60-2 | 54-9 |5-3 |11-1 |0-6 | 20
533 ||57-1 | 53-4 |3-7 || 1-4 |0-7 | 18
519 || 56-8 | 53-9 |2-9 ||0-7 |0-5 | 20
] 505 56-1 | 53-7 | 2-4 111-2 |0-5 | 22
] 495 || 56-2 | 54-0 | 2-2 ||0-7 |0-8 | 20
1} 476 | 56-8 | 54-3 |2-5 ||0-6 |0-6 | 20
§1)) 29-318 || 63-9 | 59-9 | 4-0 || 2-2 |0-9 | 19
j | 29-427 || 46-0 | 44-4 | 1-6 || 2-8 |0-1 | 20
jj} 431 || 43-0 | 42-3 |0-7 | 0-2 |0-0 | 20
] 425 || 43-6 | 42-4 |1-2 || 0-4 |0-3 | 21
i 429 || 42-4 | 41-6 |0-8 || 0-4 |0-0 | 30
J] 428 || 43-6 | 42-6 | 1-0 ||0-1 |0-1 | 22
] 432 ||45-2 | 43-8t| 1-4 |/0-3 |0-0 | 20
l 435 ||49-4 | 47-7 |1-7 || 0-1 |0-1 | 14
é 435 ||51-5 | 48-3 | 3-2 0-3 |0-4 | 20
é 427 || 55-3 | 50-11/ 5-2 0-6 |0-9 | 18
é 426 ||57-2 |51-0 |6-2 || 0-9 |0-9 | 20
¢ 423 || 58-0 | 51-0 |7-0 || 0-8 |0-9 | 18
} 422 || 60-0 | 53-4 |6-6 ||\0-7 |0-7 | 20
420 || 63-7 | 55-8 |7-9 || 0-7 |1-2 | 16
413 || 63-4 | 54-7 |8-7 ||0-6 |0-2 | 15
415 || 58-7 | 52-0 |6-7 || 0-4 |0-2 | 31
411 || 60-7 | 52-4 |8-3 || 0-6 | 0-2
411 || 62-7 | 53-3 | 9-4 || 0-4 |0-4 | 18
410 || 58-8 | 52-64] 6-2 || 0-5 |0-4 | 10
413 | 58-8 | 50-4 |8-4 |0-4 |0-1 | 17
" 421 |\55-6 | 49-9 |5-7 10-3 |0.2 | 14
438 | 51-4 |48-51|2-9 | 0-1 |0-0 | 20
5 440 | 47-4 |46-0 | 1-4 || 0-0 |0-0 | 18
| 443 | 43-9 | 43-3 |0-6 | 0-0 |0-0 | 0
1 444 | 42.7 | 42.2 | 0-5 ||0-0 |0-0 | 18
Clouds,
Se.: C.-s,: Ci.,
—:28:—
Sky
clouded.
eee eee
Species of Clouds and Meteorological Remarks.
Cir.-cum.-str. ; linear cirri rad. from NNE., with tufts
As before. (S) [of cirri. ©
Woolly cirri, diverging from NE. and SW. ; cir.-str. ©
Woolly and linear cirri becoming cir.-str., rad. from SW by S. and
Nearly as before. (NW by N.; scud on Cheviot.
Cirro-strati and woolly cirri.
Cirro-cumuli and cirro-strati. &
Cirro-cumuli and cirro-strati. iy
Id.
Cirro-strati.
Id.
Thick cirro-stratus ; scud on Cheviot.
Patches of scud to N. ; thick cir.-str.; scud on Cheviot.
lids; id. ; id.
Id. ; id. ; id.
Cirro-stratous seud ; id. ; id.
Id. ; id. ; patches of scud.
Id. ; scud; mass of cir.-str.; scud to S.
Seud ; cirro-strati; cirrous mass; rain?
Id. ; id. ; id.
Ils 3 dss id.
Ila = id. ; id,
Id.; cirro-cumulo-strati; cirro-strati; woolly cirri.
Td. ; id. ; id.
$ . . °
Scud, loose cumuli, and thick cirro-stratus.
Id.; cirro-strati; cirro-cumulo-strati ; cirri.
licl.5 id. ; id. ; id.
II. x0 id. ; id.
Id"; id.
Id. ; id.
Scud and cirro-strati.
Sunday—Sunshine and showers ; clouds, loose cumuli and nimbi.
Cirro-cumulo-stratus ? radiating from NW. »)
Patches of cloud on the horizon. »)
Patches of cirrus on horizon ; scud on Cheviot. »)
Id. ; id. »)
Patches of cirri and cirro-strati ; id. (0)
Patches of scud ; cirri and cirro-strati over the sky. ©
Seud ; cirri. ©
Woolly cirri and cirro-strati; scud round horizon. ©
Loose cumuli; cirri and cirro-strati ©
icles id. ra)
lig 2 id. ro)
Seud ; loose cumuli; cumuli; cirro-strati; cirri. (=).
Cirro-stratous scud; _ id.; id. ; id. e
Loose cumuli ; id. ; (015 & id,
Scud and loose cumuli ; cirro-strati, &c., as before. ©
Cir.-cum.-str.; cum.-str.; sheets of cir.-str.; woolly cirri; nimbi;
Nearly as before. r=) [rain to E.
Scud ; cirro-cumulo-strati ; nimbi; cirro-strati; cirri. ©
Id. ; id. ; id. ; id. id. ©
Nearly as before; stormy appearance moved up to ENE. ©
Cir.-cum.-str. ; cum. and nimbi on NW. and SE. hor. ; cir.-str, and cirri
Cir.-cum.-str. ; woolly cirri. [ad-from'SSW. ; cirri red.
Thin cirri and cirrous haze ; cirro-strati on horizon.
Id. id.
‘e direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.=8,8.=16, W.=24. The
mons of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
ly 28472, Very dark and stormy-like to BSH.; vertex of a solar halo.
AG. AND MET. oBs. 1845.
214 Hovurty METEOROLOGICAL OBSERVATIONS, JULY 28—30, 1845.
THERMOMETERS.
Time. || at 32°. || Dry. | Wet. | Diff.
28 13 || 29-446 | 42-5 | 42-1 | 0-4
14 442 || 42-5 |42-1 |0-4
15 439 || 41-4 | 41-0 | 0-4
16 444 || 37-3 | 37-0 |0-3
17 443 || 38-2 | 38-0 | 0-2
18 456 || 40-0 | 39-6 | 0-4
19 472 || 43-9 | 42-9 | 1-0
20 479 ||48-5 | 47-3 | 1-2
21 482 || 55-0 | 52-5 | 2-5
22 476 || 55-4 |51-2 |4-2
23 473 || 58-0 | 52-0 | 6-0
465 || 60-7 | 52-9 | 7-8
462 || 58-2 |52-4 | 5-8
29
30
19 193 |) 49-7 | 48.4 | 1.3
20 193 || 53-3 |51-0 | 2-3
WIND.
Maximum
force in
qe Lox,
16
18
22
20
22
4
0
0-3 | 0-3 4
0-2 | 0-2 4
0-3 | 0-3 6
0-4 | 0-3 5
0-3 | 0-1 B)
0-2 | 0-1 3
0-1 | 0-0 | 20
0-1 |0-1 | 18
0-1 |0-1 | 21
0-1 |0-1 | 20
0-1 |0-0 | 24
0-1 | 0-1 | 23
0-1 | 0-0 | 20
0-1 |0-0 | 16°
0-1 |O-1 | 20
0-2 |0-1 | 20
0-3 | 0-2 | 22
0-3 | 0-2 | 24
0-2 | 0-1 0
0-1 |0-1 | 20
0-1 |0-1 | 16
0-2 |0-1 | 14
0-2 | 0-1 8
0-5 | 0-4 | 20
0-6 |0-2 | 26
0-2 |0-1 | 16
0-3 |0-1 | 22
O-1 |} 0-1} 14
0-7 |0-8 | 17
0-9 |0-3 | 12
1:3 |0-3 | 13
0-6 | 0-5 | 12
0-7 |0-5 | 12
0-6 |0-3 | 14
0-4 |0-3 | 12
0-3 | 0-1 6
0-2 | 0-1 4
0-2 | 0-0 | 12
0-0 | 0-0 | 16
0-0 | 0-0
0-1 |0-1 | 16
0-1 | 0-0 | 14
0-0 |0-0 | 14
0-0 | 0-1 | 30
0-5 10-3 | 16
Clouds, ‘
aa mech 4 Species of Clouds and Meteorological Remarks,
from
pt. pt. pt. 0—10.
2-5 || Cirro-strati on horizon.
2-0 Id.
2-5 || Cirro-cumuli, cirro-strati, and cirri.
5-0 Joe id. ; id.
—:12:—]| 3-5 iiGhe id. ; id.
4:—:—|| 10-0 | Loose scud moved up since last observation.
10-0 || Misty scud, nearly homogeneous. ;
3:—:—|} 10-0 Td. breaking ; fog ; objects invisible at 3 mij
—: 3:—|| 9-5 | Thin seud ; cirro-cumulo-strati ; cirri.
3... — 7:0 || Loose cumuli ; cumuli; woolly cirri.
Pi — i ess licks id, id.
i) A 8-5 Loose black cum. ; cum.; cir. in streaks ; clouds look rather el
29:—:—|| 9-0 Tid id. ; id.
328 =) oO icles id.; cirrous haze round E, horizor
les 9-0 ds Ide > id.
29:—:—j|| 6-0 || Cum. ; cum.-str. ; cir.-str.; cirri; id.
29:—:—]| 9-0 tdi; id. ; nt ee id. ; id.
28:16:—|| 6-5 || Id.; id. ; idles woolly cirri.
26:—:—|| 8-5 one cum. aoa cum, an ; cir.-str.; cir. and cir. ha
27:—:—|| 9-5 Tl; id.
28:—:—|| 9-0 || Seud; cirro- Saeed
7-0 || Id.; loose cumuli ; cirro-strati.
5-0 | Cirro-strati ; cirri.
5-0 | Seud and cirro-strati ; clouds broken.
2-0 || Cloud to E.
0-2 | Id.
0-2 | Cirro-strati and cirri on E. horizon.
0-2 Id.
0-2 Td.
0-5 | Cumulo-strati on NE. horizon ; woolly cirri to N
—:—:20 0-5 | Wool.and tufted cir., nearly stationary ; cir.-str. & cum.-str. td
0-8 || Sheets of cirri ; cumulo-strati to NE. ; small patches of seud |
92 :—:— 0-8 Loose cum. and scud, chiefly round hor. ; streaks of cir. to N. |
21:—:— 3-5 || Detached cum., having a kind of internal rotatory motion; p
20 :—:— 7-0 || Scud ; loose cum., and loose cir.-cum.-str.@ (fe
21:—:—|| 8-0 || Loose cumuli; cirro-strati.
20:—:—|| 7-0 ak = cirro-cumulo-strati ; patches of cir
9-0 Id. ; cirro-strati ; cirri ; shower intel
16: —:— 9.5 || Thick scud and loose IRS ; cirro-strati and cir
9-5 Scud and loose cum. on hor. ; cir. haze and cir.-str.; faint solar
13 :—:— 9-7 Scud and loose cumuli ; cirro-strati and cir, haze; slight show
14:—:—| 9-5 || Thick smoky scud ; id.
—:13:—J]| 9-9 || Cirro-stratous scud ; cirro-strati ; cumuli on horiz
10-0 Id.
13 : —:—|| 10-0 || Seud and cirro-stratus ; rain?
10-0 Id.
10-0 Id 2 very dark ; rain”
10-0 Id ? id.; rain?
10-0 || Seud and cirro-stratus ; very dark; rain?
10-0 Id. ? rather broken ; dark ;
8:—:—| 5-0 Id. 2 fog on the ground.
1-5 || Cirro-stratous scud ; woolly cirri ; fog i in the ho llo
—:13:—] 1-5 Td. ; cirro-strati; cirri; id.
—:13:— 1-8 de; 1d; id.
1-0 || Bank of cir.-str. round horizén : patch of ual to
16:14:— 2-5 || Thin scud ; cirro-cumulo-strati ; cirro-strati.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H. = 8, S.= 16, W.= 24.
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner,
Hovurty METEOROLOGICAL OBSERVATIONS, JuLY 30—AvucustT 2, 1845. 215
THERMOMETERS. WIND.
Clouds,
[ : Se. : C.-s.: Ci.,|| Sk .
; lees te sac i. moving éloiz Hs * Species of Clouds and Meteorological Remarks.
14, | 10™
I 2 Q G lbs lbs. pt. pt. pt pt 0—10.
| 55:6 | 51-3]/4-3 || 0-8 |0-8 | 14 | 15:12:—|| 7-5 |] seua; broken masses of loose cir.-str.; loose cum. & cum.-str. on hor.
2 59-1 | 53-8 | 5-3 | 0-7 | 0-3 | 15 | 14:12:— 6-0 || As before; cumulo-strati to W.
; 61-4 | 54-8 (6-6 || 0-6 | 0-5 | 14 |} 13:—:—|| 8-0 || Scud and loose cumuli; cumuli; cirro-strati.
) 62:8 | 56-5 |6-3 ||0-7 |0-3 | 14 || 14;—:—|| 7-0 Td.; id. ray
| 63-0 | 54-8 | 8-2 0-6 | 0-3 | 14 || 14:—:—|]| 7.5 Id.; id. =
) 57-0 | 51-0 | 6-0 | 0-9 | 1-3 |16v.|| 14:—:—|]| 9-0 || Thick black scud ; cirro-strati; cumuli; rain?*
H 53-3 | 51-7 | 1-6 ||0-8 | 0-2 | 14 || 14: —: —|| 10-0 Td.; id. ; id.; rain!
: 92-8 | 51-7 | 1-1 | 0-2 |0-2 | 2 | 14:—:—|| 10-0 || Send; cirro-strati; cumuli.
99-8 | 52-0 | 3-8 0-3 |0-0} 6 | 11:—:—] 9-9 || Ia; id. ; id.; nimbi around.
i 93-4 | 50-3 [3-1 0-9 |0-3 | 6 || 14:—:— || 9-9 | Cirro-stratous scud ; nimbi; cirro-strati.
53-8 | 51-0 | 2-8 |/0-5 |0-4 | 6 | 13:—:—] 9-9 || As at 62; still looking electrical ; drops of rain.
' 53-2 | 50-4 | 2-8 | 0-5 | 0-5 6 |} 12:—:—|| 9-0 || Ragged scud; cir.-str. seud; cum.; cum.-str.; nimbi; cirro-strati;
! 53-4 | 50-3 |3-1 |/0-5 |0-3 | 12 10-0 Nearly as before. [showers around.
| 52-2 | 50-3 | 1-9 || 0-3 | 0-1 6 9-8 Id.
52-0 | 50-3 | 1-7 0-1 |0-0 | 2 9-8 || Thick scud ; loose cumuli; cirro-strati.
52-3 | 50-2 | 2-1 || 0-2 |0-0 | 12 9-9 | Thick dark clouds; small openings here and there.
51-6 | 50-2 | 1-4 |/0-2 }0-1 |) 4 10-0 || Thick dark clouds.
51-6 | 49:9 | 1-7 ||0-3 | 0-1 4 9-9 Id.
51-7 |50-1 | 1-6 ||0-1 |0-1 | 14 9-8 || Thick scud.
50-7 | 50-0 |0-7,//0-2 |0-1 | 6 9-8 || Scud and cirro-stratus.
51-1 | 49-7 | 1-4 || 0-1 | 0-0 10 | 12:—:— 9:9 Thick ragged scud, tinged with red to NE.; masses of scud lower.
50-9 | 50-0 |0-9 |/0-1 |0-0 | 4 || 10:12:—] 9-7 || Scud; cirro-stratous scud.
52-1 | 50-6 | 1-5 | 0-0 | 0-0 8 /}10:12:—j] 9-9 Id. ; id. ; cirro-strati.
53-8 | 51-8 | 2-0 0-1 |0-1 | 8 | 10:12:—] 9-8 || Loose smoky scud; misty cir.-str. ; cir.-cum.-str.
57-9 | 53-9 |4-0 ] 0-1 |0-1 | 8 || 13:—:—] 10.0 Id. ; cirro-cumulo-strati ; rain”?
57-0 | 53-2 |3-8 | 0-1 | 0-2 | 14 || 12:—:—] 10-0 || Seud; cirro-strati.
57-3 | 53-4 |3-9 0-1 |0-1 | 10 ||} 13:12:—] 9-0 Id.; cirro-cumulo-strati; cumuli; cirro-strati. ©
59-1 | 53-5 | 5-6 || 0-2 | 0-1 4 14:16 :— 9-0 Black masses of scud ; cum. scud; cum. andnimbi; cumulo-strati.
63-7 | 59-2 |4-5 || 0-3 | 0-2 14 | 14:16 :— 8:5 Masses of cum. ; cir.-cum.-str. and woolly cirri; passing showers. (S)
59-0 | 55-7 | 3-3 || 1-1 | 0-1 | 22 || 14:16:16] 9-5 || As before; rain” ; occasional showers with gusts of wind.
63-7 | 57-9 | 5-8 || 0-2 |0-1 | 20 || —:17:— 8-0 Cir,.-cum.-str. ; piles of cauliflower cum., and cum.-str, around hor. ©
61-7 | 55-4 |6-3 0-1 | 0-5 | 22 | —:20:—]] 9-9 || Cirro-stratous scud ; cirro-strati; cumuli.
57-6 | 53-8 | 3-8 |/0-3 | 0-2 | 30 | 20:—:—|| 7-5 | Pilesofcum.,cum.-str., & nimbi; cir.-cum str. ; rain” ©
56-7 |53-47/ 3-3 110-5 | 0-4 Gn oa —— 9.9 Thick dark scud ; 55 55m—6h 5m, shower 3-4; cum.-str. on hor.
53-6 ee Sa O2n Ota 2On | 1s=— 2 —— 9-5 || Seud; cir.-str.; cum.-str. on hor.; thick and dark to SW.
| 52-9 | 52-0 |0-9 ||0-1 |0-1 | 22 || —:—-: 90 6-5 || Woolly cirri; scud; loose cum.-str. and cir.-str. on hor.
if 51-4 | 50-7 |0-7 ||0-1 |0-0 | 24 |} 20: 20:—|} 8-0 || Scud; cirro-stratus and cirri.
l 51-1 | 50-4 | 0-7 ||0-0 | 0-0 8 8-0 Id.; cirro-strati; cumuli.
50-2 | 49-7 | 0-5 || 0-1 | 0-0 9-8 Id. ; id.
49-8 | 49-2 | 0-6 ||0-1 | 0-0 9-5 Id., clouds broken.
1 49-9 149-5 | 0-4 110-1 | 0-0 10-0 || Scud; drops of rain.
I 50-0 | 49-5 |0-5 || 0-0 | 0-0 9.9 Id. ; id.
1 49-3 | 49.0 |0-3 ||0-0 | 0-0 8-0 Id ; id. ; stars dim.
1) | 49-7 | 49-1 |0-6 |/0-0 |0-0 | 23 ||16:—:—] 9.0 | Smoky scud; cirro-strati.
1 49.7 |49-0 |0-7 ||0-1 | 0-1 Fal — Gh. 9.8 || Cirro-stratous scud ; mass of cirro-strati.
51-7 |50-5 |1-2 10-1 [0-1 | 10 |—:16:—|| 9-9 Id. ; id.
1 53-5 | 52-2 | 1-3 ||0-0 | 0-0 6 || 16:—:—]| 10-0 || Scud and cirro-stratus.
2 55-7 | 53-6 | 2-1 ||0-0 | 0.0 6 ||—:16:—|| 9-8 || Cir.-str.; cir.-cum.-str.; masses of scud near horizon.
2 58-1 | 54-9 | 3-2 10-1 | 0-1 7 \|12:16:—|| 9-9 || Smoky scud; loose cum.; cir.-str.; cirri; drops of rain.
2) || 58-5 | 55-3 | 3-2 | 0-2 | 0-1 | 21 || 16:16:—|| 9-9 || Scud; cirro-strati.
2 65-3 |59-7 15-6 ||0-1 10-1 | 13 114:16:— 9.8 || Scud and loose cum. ; cir.-cum.-str. ; cirro-strati.
64-6 | 58-6 |6-0 ||0-6 |0-6 | 16 || 14:—:— 9.7 || Scud; loose cumuli and cirro-strati.
; 67-4 |59-7 |7-7 10-6 |0-2 | 12 |} 14:—:— 8-5 || Cum.; cum.-str. ; cirro-cumulo-strati and cirri. ©
63-7 | 57-6 |6-1 ||0-8 |0-3 | 14 ||} 15:—:— 9.7 || Thick dark seud and cum. to W.; scattered cum. to E.
] 63-1 |57-1 |6-0 || 0-4 10-1 6 13:—:—| 9-7 Black scud to W.; patches ofragged scud below; cum.on E. hor.; sky
60-0 | 55-2 | 4-8 ||0-4 10-4 | 25 |113:14:— 9-5 || Scud; cir.-str.; wool. cir.; 34 50™, muttering of thunder to NW, [to E.
A - 175, Distant thunder in NE,; very dark to NE. and SSW. 5 10™—15m, Two flashes of lightning seen to NE. ; no thunder heard.
A). 1241h, Observation made at 11) 5m,
Ay. 29 2h, Thunder in W. at 24 5™; at 7™, a flash of lightning, with thunder in 148; 12™, thunder in 48 after the lightning ; 12™—22™, about 4 or 5
ieard to NW.; 22™, thunder in 168 after lightning, the peal lasting 308; 28™, thunder to NW., interval 19, peal lasting 38°; 30™, a long streak of light-
igo NW., from altitude 15° to horizon, thunder in 53, lasting 478. From 2h 4m__j0™, rain®>; no thunder was heard after 2h 35m; about 15 peals were
ro * See additional Meteorological Notes after the Hourly Meteorological Observations.
THERMOMETERS. WIND. Clouds
Gott. BaARo- ?
Mean || METER Maximum Se. C.-s.: Ci.,
Time. || at 32°. || Dry. | Wet. | Dift.|| force in (Prom kee
1h, |10™,
Gh in, in. ° ie e. Ibs. | Ibs. | pt. pt. pt. pt
2 5 || 29-199 ||61-0 | 57-2 | 3-8 || 0-3 |0-0 | 25 || 13 :—:—
6 195 161-3 |57-9 | 3-4 ||0-1 | 0-0 | 23 || 12:—:—
7 188 || 60-0 |57-3 | 2-7 ||0-1 |0-0 | 22 || 13:—:—
8 178 || 58-4 | 56-0 | 2-4 || 0-1 |0-1 | 21 | 13:13:—
9 172 || 53-8 | 52-0 | 1-8 | 0-1 |0-0 | 20 | —:13:—
10 169 ||51-3 | 49-8 | 1-5 || 0-1 | 0-0 1 |}—:14:—
11 161 || 52-0 | 51-8 | 0-2 || 0-1 | 0-0 2
12 148 || 52-0 | 51-8 | 0-2 ||0-0 | 0-0
233|| 29-107 || 62-6 | 57-0 | 5-6 || 2-2 | 1-0 | 20
By 1S¥ MH Beans 306 Soilless Sica lusieis
14 || 29-212 || 51-6 | 50-4 | 1-2 | 4-0 |0-5 | 21
15 224 ||52-4 | 50-9 | 1-5 || 0-7 | 0-5 | 19
16 933 || 52-7 |51-3 | 1-4 || 0-4 |0-3 | 18
17 943 1152-9 | 51-4 | 1-5 || 0-4 |0-5 | 20 | 20:—:—
18 261 || 53-0 | 51-6 | 1-4 || 0-6 |0-5 | 21 || 21 :—:—
19 280 || 55-1 | 52-9 | 2-2 ||0-9 | 0-4 | 19 | 22:23 :—
20 290 || 59-8 | 56-2 | 3-6 ||0-5 |0-5 | 19 || 23:24: —
21 299 || 60-0 | 56-3 | 3-7 ||0-5 |0-2 | 19 || 22: 23:—
22 312 ||61-2 | 57-7 | 3-5 || 0-6 |0-3 | 16 || 22:—:—
23 320 || 61-6 | 58-2 | 3-4 || 0-6 (Oe 18 | 21:—:—
4 0 319 ||64-7 |59-0 | 5-7 ||0-9 10-6 | 18 | 22:—:—
1 335 || 56-0 | 55-3 | 0-7 || 1-2 |0-9 | 19
2 345 ||61-0 | 56-9 | 4-1 || 1-5 |0-8 | 19 | 21: 22:—
3 346 || 62-5 | 57-5 | 5-0 || 1-1 |0-5 | 20 || 21:—:—
4 359 ||61-0 | 56-4 |4-6 || 1-0 |0-6 | 19 || 21 :—:—
5 367 || 62-4 | 56-5 | 5-9 || 0-9 |0-7 | 20 || —:22:—
6 373 ||58-4 |54-9 |3-5 ||0-8 |0-4 | 20 || —:22:—
7 381 || 58-1 | 55-2 | 2-9 ||0-4 |0-2 | 22 | 22:—:—
8 395 ||57-5 | 54-0 | 3-5 ||0-5 |0-2 | 23 || 22:22: —
9 402 || 56-2 | 53-0 | 3-2 | 0-3 )0-1 | 26 || 21 :—: —
10 416 || 53-6 | 51-6 | 2-0 ||0-1 |0-0 | 24
11 424 ||49-8 | 48-9 |0-9 | 0-1 |0-1 | 18
12 426 || 50-0 | 49-0 | 1-0 || 0-1 |0-0 | 18
13 || 29-431 || 48-3 | 47-9 | 0-4 | 0-1 |0-0 | 22
14 437 ||48-3 | 47-7 | 0-6 || 0-0 | 0-0
15 449 || 46-7 | 45-3 | 1-4 || 0-0 |0-0 | 23
16 452 ||47-2 | 46-9 | 0-3 ||0-0 |0-0 | 25
17 463 || 47-0 | 46-8 | 0-2 ||0-0 |0-0 | 26
18 473 || 49-2 | 48-8 | 0-4 || 0-2 |0-1 | 25
19 481 || 52-0 50-0F 2:0 ||0-1 |0-0 | 24 || 20:—: 22
20 487 ||54-9 |52-9 |2-0 ||0-0 |0-0 | 24 || —:—:19
21 490 || 56-7 | 53-34) 3-4 || 0-2 |0-1 | 26 || —:—:19
22 491 || 60-7 | 55-7 | 5-0 || 0-1 |0-0 | 16
23 494 || 65-0 | 58-0 | 7-0 || 0-1 |0-1 | 30 || 20: —: 20
5 0 495 || 64-2 | 56-4 | 7-8 || 0-1 | 0-1 6
1 496 || 67-7 | 58-7 |9-0 || 0-2 |0-1 | 18
2 499 || 67-1 | 58-2 | 8-9 || 0-2 |0-1 8 || —:18:—
3 496 || 68-5 | 59-6 |8-9 ||0-1 | 0-2 8 | 20:18:—
4 500 || 63-4 | 57-0 | 6-4 || 0-3 |0-3 5 || 20:—:—
5 507 ||61-6 | 57-4 | 4-2 || 0-3 [0-1 | 12
6 516 || 60-7 | 57-4 | 3-3 || 0-2 |0-1 | 14 4:—:—
7 528 || 59-0 | 56-8 | 2-2 || 0-1 |0-0 | 20 4:—:—
8 538 ||57-7 | 56-4 | 1-3 || 0-1 |0-0 | 16
9 535 ||55-7 | 54-0 | 1-7 | 0-1 |0-0 | 18
10 541 || 54-3 | 53-2 | 1-1 ||-0-1 |0-0 | 26 |
HovurLy METEOROLOGICAL OBSERVATIONS, AUGUST 2—5, 1845.
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Scud and cumuli; cirro-strati and cirri.
Id. ; id.
dies id. ; cum.-str.
Scud and cir.-cum.-str.; range of cum. on E. horizon; cir.-str.; cum.-str.; rain 02. €
Cir.-str.-scud; cum.-str.; cir.-str.; fog rising from the ground.
Td. s id., denser.
Fog ; onjetis invisible at 150 yards,
IGIRS id.
Suriday—-O vereast, chiefly loose ragged cumuli; o¢-
; casional showers.
Cirro-strati round horizon; cirrous haze to S.
Seud and cirro-strati.
Id.
Id.
Send; cirro-strati and cirro-cumulo-strati.
Misty scud very low ; cirro-cumulo-strati; cirro-strati
Id. ; id. ; id.
Scud ; id. ; id.
Id.; cirro-strati; cirrous mass.
Seud and loose cumuli; cirrous mass.
Td.
tds shower?—?
Seud ; cum.-str. ; cir.-cum.-str. ; cir. ; drops of rai
Loose cumuli; cirro-strati. [to
Seud; loose cum. ; cir.-str.; dense black mass of cloud id
Cir.-cum.-str. ; cir.-str. ; cae and cumuli on horizon. |
Cirro-strati ; masses of scud and cum.-str. on horizon.
Seud and cirro-stratus ; cumulo-strati on horizon.
licks thick dark clouds to NW.
cirro-cumulo-strati.
id. cirri. a
Id.
woolly cirri.
Homogeneous mass ; fog, objects invisible at 2 nil
Id. ; objects invisible at 1 mile.
Misty scud to S.; linear cirri ; traces of a solar halo.€
Woolly cirri ; loose scud to S.; partial solar halo. €
Diffuse cirri ; scud and loose cum. on hor.; solar halo.€
Td. ; cir. haze ; loose cum, round horizon ; solar halo.€
Detached cum. ; cir. and cir. haze; towering cum. to S. ; solar halo, (
Td!) id.
der ide; solar halo.
Cirro-cumulo-strati ; loose cumuli; cirrous haze. (
Loose cum.; cir.-cum.-str. ; cir.str. and cir haze; portion of a sole
Loose cum. moving very slowly ; dense cir.-str. and cir. haze. a4}
a
(
Dense mass of cir.-str. and haze; masses of scud and loose cumu
Scud ; mass of cirro-stratus. ; rain? [below; drops of rai
its id. ; slight drizzle.
Cirro-stratous seud; wavy cirro-strati; cir.-cum.-str.
Cir.-str.; wavy cir.-str. radiating from NNE. and SSW
Cirro-cumulo-strati: cirro-strati. ee to |
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.=8, S.=16, W. = 24. Thi
.-S. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
motions of the three strata of clouds, Sc. (scud), C
Hourty METEOROLOGICAL OBSERVATIONS, AuGuUST 5—7, 1845. vel ri
THERMOMETERS. WIND.
Sky
clouded. Species of Clouds and Meteorological Remarks.
Maximum
Wet. | Diff.|| force in [From
Bank of cirro-stratus on E. horizon, rad. from SSW., thin at the
As before; sky clearer. ledges; sicy millry.
As before, with cirrous haze.
Fog; cirro-stratus and cirrous haze ?
Id., objects invisible at about 200 yards.
Id. 250 yards.
Id. 400 yards. [cir.-cum.
Id. 300 yards; wo. cir. and
Cir.-cum.-str.; thick woolly cirri; cirrous haze ; fog clearing off. G
Id. ; id. ; id.
Woolly and linear cirri; cir.-cum.-str. : cirrous haze and cirro-strati.
As before ; cirri radiating from N. and S. ©
idl, id. ; cum. and haze on hor.©
Loose cumuli; woolly cirri; cirro-strati; cumuli.
Ula. F ide 3 cumuli.
Nein é cir.-cum.-str. ; cir.-str.; cumuli; cirri.©
Seud ; cirro-strati; cumuli.
Cirro-cumulo-strati ; cumuli; cumulo-strati ; cir.-str. @
aN SRE A TR cE oe Ti ll a hae pip
Scud and loose cumuli ; id. ; id. Of
Scud ; cum.-str.; cirro-strati; cirri; drops of rain.
Id. ; “Gl, 2 nimbi; cirri; heavy rain to ESE.
Nearly as before; showers around ; clouds quite blue to NNW.
} Dense scud and cirro-stratous scud ; showers!
iy Id.
‘ tel, 2 rain”?
Id. ; drops of rain,
29.446 || 54-7 | 53-9 | 0-8 ||0-1 | 0-1 | 20 10-0 || Dark.
445 || 54-0 | 53-4 | 0-6 ||0-1 |0-0 | 20 10-0 Id.
441 || 53-6 | 52-9 | 0-7 || 0-0 | 0-0 | 20 10-0 || Thick scud.
440 || 53-0 | 52-4 |0-6 || 0-0 |0-0 | 20 10:0 || Dense cirro-stratus and scud.
436 || 52-7 | 52-1 |0-6 || 0-0 | 0-0 | 20 10-0 Id.
438 || 52-8 |52-0 |0-8 ||0-0 |Q-0 | 24 || 26: —: — 9:0 || Thin seud; cirro-strati.
445 || 54-0 | 52-1 | 1-9 || 0-3 | 0-3 | 23 || —:27:— 8-2 || Cir.-str. seud; cir.-cum.-str. ; scud on horizon ; cirri.
450 || 55-7 152-8 |2-9 ||0-3 |0-4 | 20 || 26: 26:— 6-0 Scud ; cir.cum.-str.; cirro-stratous scud on hor. ; cir.-str.; cirri.©
454 || 56-6 | 53-0 | 3-6 ||0-3 |0-3 | 26 5:5 || As before. (S)
449 || 58-8 | 53-9 | 4-9 || 0-6 | 0-3 | 22 || 27:—:—]| 5-5 || Loose cumuli; cirro-cumulo-strati, &c., as before. ©
450 || 62-2 | 56-9 |5-3 ||0-6 | 0-3 | 26 || 27:—:—|| 8-0 licks id.
451 || 63-0 | 56-5 | 6-5 ||0-6 | 0-4 | 27 || 24:—:—]| 8-5 lich, ¢ cumulo-strati.
451 || 62-8 | 55-9 |6-9 || 0-7 |0-3 | 28 || 27:25:—| 8-5 || Scud; loose cumuli; cumuli; cumulo-strati; cirri.
458 || 63-3 | 56-7 |6-6 || 0-6 |0-3 | 26 || 28:25:—|| 9-0 Id. ; Tels § id. ; id. ; id. (>)
458 || 63-0 |57-0 |6-0 || 0-2 |0-4 | 28 |) 28:25:— | 8-0 || Loose cum. ; piles of cum. and cum.-str. ; cir.-cum.-str.
466 || 63-5 | 56-4 | 7-1 || 0-3 |0-3 | 30 || 27:26:—j| 8-0 || Nearly as before; very black to W.
476 || 61-4 | 56-2 | 5-2 ||0-3 | 0-3 | 30 || 27:26: — 9-9 || Scud; dense cirro-cumulo-stratus and nimbi.
475 || 62-9 |58 3T 4-6 ||0-4 |0-1 | 28 9-7 || Loose cir.-str. and cir.-cum.-str. ; cum.-str. on horizon.
482 || 60-7 | 57-0 | 3-7 || 0-2 |0-2 | 27 || —:28:—J|| 9-9 || Cirro-cumulo-strati ; cumulo-strati; cirro-strati.
490 || 59-3 | 56-0 | 3-3 ||0-2 |0-1 | 10 ||30:28:—]| 9-0 Id. ; cirro-strati; cumulo-strati.
493 || 55-3 | 54-01] 1-3 || 0-1 | 0-1 | 30 8-5 Id. ; id. ; id.
505 || 51-7 |51-1 | 0-6 |/0-1 |0-0 | 20 3-0 || Cirro-strati and cirro-cumulo-strati.
510 || 51-6 | 51-2 | 0-4 ||0-1 | 0-0 2-0 Id. round horizon.
510 || 49-7 | 49-2 |0-5 || 0-0 |0-0 9-0 || Seud and cirro-strati.
29-505 || 51-0 | 50-6 | 0-4 || 0-0 |0-0 | 14 9-5 || Seud.
503 || 51-6 | 51-0 |0-6 || 0-0 |0-0 3:0 Id.
505 || 50-9 | 50-2 |0-7 || 0-0 |0-0 | 20 0-2 || Cirro-strati on E. horizon.
502 || 48-7 | 48-3 |0-4 ||0-2 |0-1 | 17 || —:28:—|| 1-5 || Cirro-stratous scud.
506 || 49-7 | 49-3 |0-4 |]0-1 |0-1 | 22 ||} —:27:—1) 1-0 Id. ; cirro-strati.
Aug. 54135 5™. A meteor from altitude 80° to W by S., fell vertically 30°.
Aug. 649. Observation made at 91 7m,
Aug. 74 3. Clouds looking electric throughout the day ; showers around.
Aug. 74114 7™_36™, Five shooting-stars seen.
Aug. 71 144 40m_44m, ‘Two shooting-stars seen.
MAG, AND MET. oss. 1845. 31
218 Hovurty METEOROLOGICAL OBSERVATIONS, Avueust 7—10, 1845.
THERMOMETERS.
WIND.
HAIADSOOH
7
SSeS Ol See
SwabhKRSHOA A SWEEF SONNE GNSRHOWO
wre KH ORK OF (=) Pe OOD
08
& co
Maximum
force in
PWwWWOCrFOFNWN COC COFPSCOCCNN— WHEE Ww DDO
WO WW WB OF Or Or Or BB DOD BK OD
Sky
clouded.
Species of Clouds and Meteorological Remarks. —
Cirro-stratous scud ; cirro-strati.
Scud and loose cumuli to S. ; cirro-strati to E.
Masses of scud and loose cum. on hor. ; cirro-strati to E. and N
As before ;_ cirro-strati and sheets of thin cir. to N.
Masses of scud and loose cum. ; cir.-str. to E. and N
Scud and loose cumuli ; cirro-strati.
id.
Tele id.
Loose cumuli: cirro-cumulo-strati.
Id. ; id.
tds; id.
Cirro-cumulo-strati and loose cirro-strati.
Cirro-stratous scud ; masses of cirro-strati ; cirri.
id.
Cirro-stratous scud.
dks cirrous haze.
Cirro-cumulo-stratus ?
Id.
Id.
Seud ; cirro-stratous seud.
Scud.
Loose scud ; thick seud and cirro-stratus.
Id. ; ide; rain?”
i rain!
at
rain?
rain? * =
rain?
rain!
rain”? 5
Scotch mist ; rain’
id. ; clouds more broken; rain
id. ;
drops of rain.
mass of cirro-strati.
id.
cirro-stratous scud.
loose cumuli ; cirro-cumulo-strati.
eirro-cumulo-strati: cirri.
cumulous scud.
loose eumuli.
The direction of the wind is indicated by the number of the point of the compass, reckoning N = 0, B. =8, 8.= 16, W=Ze
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
782
Hovurty METEOROLOGICAL OBSERVATIONS, AUGUST 11—13, 1845.
THERMOMETERS. WIND.
Maximum
Dry. | Wet. | Diff. force in |Ryom
1h, ;10™,
us is Ibs. | lbs. | pt.
58-2 |53-7 14-5 ||0-7 | 0-6 4
60-4 | 55-5 | 4-9 || 0-7 | 0-5 3
60-1 | 55-1 | 5-0 || 0-7 | 0-6 3
60:3 | 55-0 | 5-3 || 1-0 | 0-7 3
59-9 | 55-7 | 4-2 || 1-2 | 0-4 3
59-9 | 55-3 | 4-6 || 0-7 | 1-2 3
55-4 | 54-0 | 1-4 || 1-4 | 1-0 3
55-2 | 53-2 | 2-0 |10-9 | 0-9 2
53-3 |52.4 | 0-9 || 1-1 | 0-5 1
53-6 | 52-0 | 1-6 || 1-0 | 0-6 2
53-3 152-5 |0-8 || 0-8 | 0-6 1
53-5 | 51-5 | 2-0 || 1-2 | 0-3 0
53-4 |51-8 | 1-6 || 0-6 | 0-4 1
53-9 | 50-9 | 3-0 || 1-2 | 0-9 1
53-8 | 50-8 | 3-0 | 1-1 | 0-7 3
53-7 | 50-5 | 3-2 |10-9 | 0-4 0
53:3 | 50-6 | 2-7 ||0-6 | 0-2 1
53-1 | 50-4 | 2-7 | 0-3 | 0-2 1
52-7 |50-7 | 2-0 ||0-3 | 0-3 | 30
52-7 | 49-8 | 2-9 || 0-3 | 002 2
53-2 | 50-2 | 3-0 || 0-3 | 0-2 0
53-7 | 49-6 | 4-1 || 1-0 |0-6 0
54-9 | 50-7 | 4-2 ||0-7 | 0-6 0
56-7 |51-4 | 5-3 || 0-8 | 0-8 ]
55-5 |51-0 14-5 |10-9 | 0-5 1
54-0 | 51-4 | 2-6 || 1-1 | 0-2 | 31
54-4 | 52.2 | 2-2 ||0-4 |0-3 | 30
55:3 | 51-2 | 4-1 || 0-6 | 0-7 1
55-4 | 50-8 | 4-6 || 0-6 | 0-4 2
55-2 149-8 | 5-4 |/0-8 | 0-4 0
54-8 | 50-3 | 4-5 || 0-4 | 0-3 0
54-0 | 50-7 | 3-3 ||0-2 | 0-1 | 30
52-6 | 50-4 | 2-2 |10.2 | 0-1 1
51-0 | 50-0 | 1-0 || 0-1 | 0-1 4
51-0 | 49-0 | 2-0 || 0-1 | 0-1 1
50-0 | 48-4 | 1-6 ||0-0 | 0-0 | 28
48-9 | 46-3 | 2-6 || 0-1 | 0-1 0
47-5 |45-7 |1-9 ||0-1 | 0-1 | 28
45-6 |44-5 | 1-1 | 0-0 |0-0 | 26
45-8 | 44-9 |0-9 0-0 |0-0 | 26
45-8 | 44-9 |} 0-9 | 0-1 |0-1 | 22
46-3 | 45-2 | 1-1 ||0-2 |0-1 | 24
46-1 |45-3 |0-8 ||01 |0-1 | 24
48-8 | 47-2 | 1-6 | 0-1 |0-0 | 24
51-2 | 48-9 | 2-3 ||0-1 |0-1 | 24
53-1 | 48-9 | 4-2 ||0-2 | 2-0 | 22
57-3 | 51-3 | 6-0 || 0-2 |0-3 | 28
59-6 | 53-2 |6-4 10-3 |0-2 | 25
61-4 | 52-4 | 9-0 ||0-2 |0-2 | 29
61-0 | 51-5 |9-5 ||0-3 | 0-3 | 28
62-6 | 53-4 |9-2 |10-4 | 0-3 | 28
62-1 | 52-3 |9-8 10-3 |0-2 | 30
60-4 | 52-8 | 7-6 ||0-2 | 0-1 | 29
60:0 | 52-8 |7-2 ||0-2 |0-1 | 29
58-4 |53-1 |5-3 10-1 | 0-1 0
56-5 | 52-7 |3-8 || 0-0 | 0-0 3
Clouds,
Se. :C@.-s. : Ci.,
moving
from
es
=—-NNNWNWNNNWWhF
pt.
8
HoorerreKKFH Oooo
look
Oo cw
—
|
is)
om
28):
726):
219
Sky - :
slondede Species of Clouds and Meteorological Remarks.
0—10.
9-9 || Scud; loose cumuli.
9-5 ays id.
9.9 Id. ; id.
9-0 Iele id.
9-5 lols id. ©
9-9 Id. ; id.; woolly cirriand cir. haze; part of a
10-0 Id.; cirrous mass; slight drizzle. [solar halo.
10-0 lick ate Be cirro-strati.
10-0 Id. ; id. ; id.';) | ram
10-0 IGee nC; F id.
10-0 Id.; cirro-strati.
10-0 Id.; id.
10-0 Id.
10-0 |) Seud.
10-0 Td.
10-0 || Id., radiating from N by E.; clouds breaking.
10-0 leg id.
9-5 || Id.; cirro-strati.
9-5 || Id.; id.
9-2 || Id.; id.
10-0 || Id.; id.
9:9 || Dense cirro-stratous scud ; scud below to E.
10-0 Td. ; scud below to N. and E.
10-0 Id. ; id.
10:0 || Scud; cirro-stratous scud ; cirrous mass.
10-0 Id.; slight drizzle.
10-0 Id.
9-9 || Id., clouds breaking ; sky greenish on E. horizon.
9-9 lich dys id.
9-9 || Cir.-str. ; thick wavy cirro-strati; id.
9-8 || Patches of scud; cirro-stratus ; sky on E. horizon.
9-9 || Scud ; cirro-cumulo-stratus ; clouds breaking.
10-0 Id.; rain”?
10-0 Id.; loose scud on horizon ; occasional showers.
10-0 Id.
9-8 Id.; cirro-stratus and cirrous haze.
9-0 Id. ; id.
9-0 || Seud; cirro-stratus and cirrous haze.
3-0 || Clouds round horizon; sky hazy.
9-8 || Cirro-strati.
9-9 Id.
9:5 || Cirro-cumulo-strati.
9-8 Id.
9-2 Id.
7:0 || Cir.-cum.-str. ; sheets of cirri; patches of scud to SE.©
4-0 Woolly cirri; cir.-cum.-str.to W.; secud on NW. & N.hor.; cir.-str. ©
6-0 || Loose cumuli; woolly cirri; cirro-strati ; cumuli. ©
8-0 || Scud & loose cum; cir.-str.; long lines of cirri radiating from N. by E.
9-5 || Scud and loose cum.; cirri and cir. haze; solarhalo. ©
9-5 | As before. ©
9-2 || Seud and loose cum. ; cir.-cum.-str. ; cirri; cir. haze. ©
9-2 || liek 2 id. ; id. ; id. ©
9-8 || Cirro-stratous seud ; cirri; cirro-strati.
9-9 || Scud; cir.-str. seud; nearly homogeneous mass of cir.-str.
10-0 || Scud; dense cirro-stratus and haze.
10-0 || Thick cirro-stratous scud ; dense cir.-str. and haze.
_ Che direction of the wind is indicated by the number of the point
_ titions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Observation made at 32 7.
Aug. 134 3h,
Aug. 134 Gb 20m__40m,
of the compass, reckoning N. = 0, E.= 8, 8S. = 16, W. =24. The
Cthe masses have Spicule pointing upwards; green sky above Cheviot.
A long line of loose scud to ESE. lying close to the ground, and creeping along the lower Cheviot hills ; some
220 HourLy METEOROLOGICAL OBSERVATIONS, AUGUST 13—15, 1845.
THERMOMETERS.
Time. || at 32°. Dry. | Wet. | Diff.
13 8]| 29-785 || 54-3 | 52-2 | 2-1
5) 791 ||53-4 |51-9 | 1-5
10 793 ||52-5 | 51-4 | 1-1
11 799 ||51-0 | 50-3 | 0-7
0-9
1-0
12 798 ||49-2 | 48-3
13 || 29-778 || 49-9 | 48-9 | 1-
14 761 || 48-9 | 48-0 | 0-9
15 754 ||49-2 | 48-3 | 0-9
16 732 || 50-0 | 48-2 | 1-8
ites 716 || 51-2 |48-8 | 2-4
18 707 ||51-7 | 49.0 | 2-7
19 698 ||/52-1 | 49-3 | 2-8
20 693 || 53-3 | 50-1 | 3-2
21 694 155-5 | 51-4 | 4-1
22 691 || 54-4 | 51-3 | 3-1
23 684 || 56-0 | 52-2 | 3-8
0 674 ||59-0 | 53-9 | 5-1
1 661 || 59-6 | 53-3 | 6-3
2 651 || 60-7 | 54-3 | 6-4
3 642 || 59-9 | 53-6 | 6-3
4 624 || 57-8 | 53-4 | 4.4
5 614 || 56-4 | 52-7 | 3.7
6
7
8
9
14
599 || 55-9 | 52-3 | 3-6
598 || 54-8 | 52-2 | 2.6
599 || 53-2 | 50-8 | 2.4
593 || 52-9 | 50-4 | 2-5
10 589 || 52-2 | 50-2 | 2-0
11 582 || 51-7 | 49-8 | 1-9
12 574 || 52-2 | 49-6 | 2-6
13 || 29-566 || 51-9 | 49-5 | 2-4
14 577 || 56-3 | 49-4 | 0-9
15 578 || 50-2 | 48-6 | 1-6
16 578 || 48-7 | 46-5 | 2-2
17 577 || 47-0 | 45-0 | 2-0
18 587 ||47-7 | 45-3 | 2-4
19 588 || 49-3 | 46-2 | 3-1
20 592 || 51-2 | 47-2 | 4-0
21 596 || 52-3 |47.9 | 4.4
22 602 || 53-0 | 48-2 | 4-8
23 597 || 52-5 | 48-8 | 3-7
0 594 || 54-3 | 47-8 | 6-5
1 600 || 57-4 | 50-6 | 6-8
2 612 || 56-3 | 49-8 | 6-5
3 622 || 57-52} 49-0 | 8-52
4 618 || 56-3 | 49-2 | 7-1
5 617 || 56-7 | 49-8 | 6-9
6
7
8
9
15
622 || 54:8 | 47-7 | 7-1
632 || 53-4 | 47-8 | 5-6
649 || 52-6 | 47-3 | 5-3
656 || 49-7 | 45-8 | 3-9
10 674 || 50-6 | 46.4 | 4.2
11 672 || 49-8 | 45-7 | 4-1
12 669 ||50-3 | 45-4 | 4.9
13 || 29-670 || 49-9 | 45-1 | 4-8
14 668 || 49-4 | 44-8 | 4.6
WIND.
Maximum
force in
Th, /) LOm.
Se. :
Clouds,
C.-
s.: Ci.,
moving
from
pt. pt.
26:26:
reir asl ll celle asda cel li ge
pt.
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Masses of scud ; cirro-stratous and cirrous haze.
Id: : id.
Seud and dense cirro-stratus.
Seud, cirro-stratus, and haze.
Id.
Seud, cirro-stratus, and haze.
Seud and cirro-stratous scud ; cirro-strati.
Cir.-str. scud ; sheets of cirro-strati; scud on Cheyi
Dense cirro-stratus. 4
1 BS patches of scud to E.
Patches of scud; dense sheets of homogeneous and w
As before ; rain”? [cirro-strati; drops of r
Patches of scud to S. ; dense homogeneons cirro-strat
Masses of send and loose cum. ; homogeneous cir.-si
Ta; id.
As before ; drops of rain.
Cirro-stratous scud and dense cirro-stratus.
Id.
Tae drops o Py
Ids drops of 1
Cirro-stratous scud and dense cirro-stratus.
Scud; showers! lately ; rain”?
Id.; cirro-strati; sky to N
as 1d. 3 id.
Cirro-stratous scud.
Loose and cir.-str. secud, tinged blue, yellow, and orange ; sky on h
Cirro-stratous scud ; undulated cirro-stratus.
IGS cirro-strati.
Seud and loose ecumuli; cirro-strati.
iGike id.
id: = id.
Loose cumuli; cumulo-strati; cirro-strati.
Scud and loose cum. ; piles of cum. to N.; cum.-si
As before. (Oo) [cirro-strati
Id.; = woolly cirro-cumulo-strati.
Id.; sky greenish on E. horizon.
Td.
Seud and loose cumuli; cirro-cumulo-strati. ;
Idi id. ; thin cir
Cirro-stratous scud.
Cirro-stratous scud.
Cirro-strati and cirro-cumulo-strati ; clouds br
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, S.= 16, W.= 24,
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated i in a similar manner.
Hourty METEOROLOGICAL OBSERVATIONS, AuGUST 15—18, 1845. 221
THERMOMETERS. WIND.
Maximum Sky
7 wet. | pig.|| force in |p clouded. Species of Clouds and Meteorological Remarks.
ry. et. | Diff. rom
44-7 | 4. . . : Cirro-strati and cirro-cumulo-strati.
44-6 |3- . : . Seud ; cirro-stratus.
44-6 | 3. : : : ; . ielee id.
44-3 | 2- : : :—: : Id.; cirro-stratous scud.
; Cirro-cumulo-stratus ; scud to E.
liek id. [scud to W.
IG, masses of cirro-strati; patches of
Id. id. 3)
patches of scud to W.
oo
SS) TS
WIA AND AROAHOCONH
D> or wo)
(5%)
Scud and cirro-stratus.
Id.
Id.
Id.
Id.
Cirro-cumulo-strati and cirro-strati.
—_
pe OOO
234) 29-581 : ; . : : Sunday—a.m. Scud and cir.-str. p.m. Scud and showers.
B 29-422 : P . . : y >: : Seud ; cirro-cumulo-strati? rain”?
4] 418
416
405
399 : : . . . :—: : Cirro-stratous scud ; cirro-strati; cirri.
dys cirro-cumulo-strati ; cirri.
Id. ; woolly cirri; cir.-str.; cum. to N.
Thin seud ; woolly and mottled cirri; cumuli to N. @
Loose ragged scud and loose cumuli; cirro-strati.
Seud and loose cumuli; cumulo-strati; cirro-strati.
Loose cumuli; cumuli; id. ; i
Id. ; id. ; id. ;
Scud and loose cumuli; id. ;
lik 2 161.2
Scud ; cumuli; rain?
Thin scud; scud and loose cumuli; cirro-strati.
As before ; cumulo-strati on E. horizon.
Loose scud ; cum. and cir.-cum.-str.; piles of cum.-str. on ESE. hor. ©
Cir.-str. scud ; loose cir.-cum.; piles of cum,-str. and nimbi on hor.
Nearly as before.
Id.
Cirro-cumulo-strati.
eeoooooos
coor — = = bO
Scud and cirro-stratus.
Cirro-stratous scud, causing a diffuse lunar corona. }-
Cirro-cumulo-strati.
28 . Misty scud and cirro-stratus.
—— . Id.
; ; , é 20 bye eee ; Misty scud ; cirro-stratus ; gathering of swallows.
51-6 |1.- é : 12 ; :— 9. Id. ; id. )
20 53-6 | 52-3 | 1- : 0 | 12 :20:— . Id.; woolly cir.-cum. ; piles of cum.-str. on N. hor.
t
| |The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E. = 8, S.=16,W.= 24. The
tions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci, (cirrus), are indicated in a similar manner.
Aug. 184195, Observation made at 19 25m,
_| MAG, AND MET. oss. 1845. hs
222
THERMOMETERS. WIND.
Gott BARO-
Mean || METER Maximum
Time. || at 32°. || Dry. | Wet. | Diff.) force in [Prom
14, |10™.
Ol tg in. S 2 S Ibs. | lbs. | pt.
18 21 | 29-300 || 55-8 | 53-3 | 2-5 ||0-0 |0-0 | 10
22 || 290 | 55-7 | 53-7 |2-0 10-1 |0-2| 6
23 | 283 | 55-0 | 53-4 /1-6 |/0-5 |0-5 | 5
19 0| 263 54-1 | 53-0 |1-1 |/0-9 |0-9 | 3
1| 256 |53-8 |52-9 |0-9 0-8 |0-9 | 3
Q| 244 | 52-6 |51-6|1-0 1-5 |09]| 2
3 | 228 | 53-0 |52-6 |0-4 1-3 |1-0 | 2
4 | 215 | 52-4 51-1 /1-3 11-5 11-0] 2
5 | 195, || 52-3 |51-0 |1-3 1-3 10-7 | 2
6 181 | 51-8 |50-6 | 1-2 ||1-0 |0-4 | Oo
7 | 168 | 50-7 |49-9 |0-8 10-8 {0-4 | 2
8 157 | 50-4 | 48-7 | 1-7 |10-9 |0-9 | 1
9 | 145 | 50-4 | 49-2 |1-2 10.9 |0-7 | 1
10 115 | 51-0 | 49-1 | 1-9 || 1-7 |1-4 | 31
11 097 || 50-2 | 48-2 | 2-0 ||2-3 }1-7 | 0
12 079 || 50-0 | 48-0 | 2-0 ||2.5 | 1-4 | 31
13 || 29-064 || 49-7 | 48-7 | 1-0 || 1-7 |0-7 | 30
14 045 | 49-7 | 48-8 |0-9 || 1-1 | 1-2 | 30
15 028 || 49-8 | 48-8 | 1-0 || 1-5 |1-2 | 30
16 || 021 | 49-8 |48-8 |1-0 || 1-7 | 1-3 | 30
17 || 015 | 49-9 | 48-9 | 1-0 | 1-4 |0-5 | 30
18 || 012 | 49-9 |48-9 | 1-0 || 1-5 |0-9 | 29
19 | 009 | 50-3 | 48-9 | 1-4 |} 1-9 | 1-4 | 29
20 | 008 || 51-0 |49-6 | 1-4 |} 1-9 |1-7 | 29
21 | 027 | 52-2 |50-0 | 2-2 | 2.4 |1-8 | 29
22 || 040 | 52-5 | 50-3 | 2-2 |/1-9 | 1-3 | 30
23 || 042 | 53-3 | 51-1 | 2-2 | 3-3 |1-8 | 28
20 0], 062 |53-4 | 51-0 | 2-4 | 2-7 | 1-9 | 28
1 | 086 | 54-9 | 52-2 | 2-7 | 2-3 /1-7 | 28
2|| 116 | 54-3 |52-4 |1-9 | 5-0 | 1-1 | 28
3 | 138 | 55-1 |52-4 |2-7 |1.3 | 10 | 28
4 || 160 | 55-6 | 53-1 |2-5 |/1-8 |0-7 | 29
5 || 177 | 56-4 |53-6 |2-8 1-9 11-4 | 28
6 || 202 55-2 | 52-7 |2-5 111-5 | 1-1 | 29
7 | 9231 |54-0 | 51-8 | 2-2 | 1-2 |0-9 | 28 |}
g | 261 | 53-0 | 50-7 | 2-3 | 2-3 | 1-0 | 30
9 | 285 | 52-4 |50-0 |2-4 | 1-1 |0-8 | 29
10 | 306 | 52-0 | 49-4 |2-6 {1-2 |0-6 | 30
11 | 329 |50-9 |48-8 | 2-1 0-8 | 0-1 | 26
12 | 350 |51-2 | 48-4 | 2-8 0-3 |0-2 | 29
13 | 29-362 | 49-8 | 48-3 |1-5 |l0-2 |0.0 | 20
14 386 | 50-4 |48-2 | 2-2 10-1 10.1 | 22
15 | 407 | 50-0 | 47-4 | 2-6 10-2 |o0.1 | 22
16 | 424 | 49-3 |47-4 | 1-9 |/0-1 | 0.0 | 22
17 | 428 | 49-4 | 47-3 | 2-1 | 0-3 |0.3 | 24
18 | 449 48-6 | 46-3 | 2-3 | 0.3 | 0.2 | 24
19 | 468 | 49-3 | 46.7 | 2-6 | 0-4 |0-3 | 23
20 490 || 49-6 | 46-4 | 3-2 | 0.4 |0-5 | 23
21 522 | 52-7 |48-6 | 4-1 | 0-2.}0-1 | 27
92 | 541 | 55-8 | 49-8 |6-0 | 1-2 10-6 | 29
23 555 | 55-8 | 49-0 |6-8 || 1-5 | 1-2 | 30
21 0 573 || 56-8 | 50-0 |6-8 | 0-9 |0-2.| 30
1 592 | 56-3 |50-0 | 6-3 | 0-3 |0.2 | 24
2 610 | 56-7 | 50-3 |6-4 0-4 10.2 | 23
3 623 || 58-0 | 51-0 | 7-0 | 0-4 |0-2 | 27
4 || 634 |57-2 |51-0 |6.2 |10-4 |0.3 | 21
ko
DNWNWWWWWwWKhRaAOBS
Hovur.Ly METEOROLOGICAL OBSERVATIONS, AuGusT 18—21, 1845.
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Misty scud ; cirro-strati.
Td:,; cirrous mass.
Id. ; id. ; rain?
Id. ; fine rain”®
Ka; fine rain?
Jc e fine rain!
Tide; fine rain!
id: ; fine rain!
1k fine rain!
Masses of loose scud ; dense mass of cir.-str. ; rai
As before ; rain’ [yellow to NW. ; rai
Patches of loose scud; dense cirro-str. ; cloudil tin
Scud and cirro-stratus ; continuous rain!” }
Rain!
rain’?
rain”?
rain!
rain’?
rain”
rain!
rain!
rain!
Loose scud ; dense cirro-stratus ; rain!—?
Id. ; rain?”
ligbs rain’’®
Hd.; ram’
Id. ; rain?’®
rain!
rain!
rain”?
rain! {nearly vi
dense cirro-str ; drops of rain ; sun’s
Masses of scud ; homogeneous cirro-stratus ; rain”
Patches of seud ; id. [stratus ; rain’
Masses of scud and cir.-str. to S. ; homogeneous ci
iidS id.
Seud ; rain’?
Id.
Mass of cirro-stratus.
Id. ; lower cir.-str. radiating from ]
Mass of cir.-str.; lower cir.-str. radiating from }
Id., thinner ; id.
Id., much thinner; patches of scud. —
Loose cirro-strati; cirro-cumulo-str. ; clouds broke
As before. } [cum.; sky rather wild-looking
Loose cir.-cum.-str. ; dense cir.-str. ; woolly cir, ; cirro-
Cirro-cumulo-strati ; cirro-strati ; woolly cirri.
Woolly cirri ; id. ; scud,
Cirro-cumulo-strati ; woolly cirri.
lds id. ; cirro-strati.
Scud and loose cumuli ; cirro-strati ; woolly cirri
tds; id.
Cirro-stratous scud ; wavy cirro-strati; cirri.
Thick cirro-stratous seud. }
Seud ; cir.-cum.-str. ; cum.-str. on E. hor. ; cir.-str
As before.
et
fa By Gs Ba
we ee we ee we ee we
The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E.= 8, S.= 16, W.= 24, he
motions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
568
B 556
Simm 6555
|8i} 560
| 569
562
1) 578
}2i| 584
Hourty METEOROLOGICAL OBSERVATIONS, AUGUST 21—23, 1845.
THERMOMETERS.
49-9
148-9
51-0
49-1
48-4
WIND.
Maximum
force in |Pyom
15.| 10m
lbs. lbs. pt.
0-1 |0-1 | 26
0-3 |0-1 | 23
0-2 | 0-2 | 22
0-4 | 0-1 | 22
0-2 |0-1 | 20
0-3 | 0-3 | 22
0-3 | 0-2 | 22
0-1 |0-1 | 22
0-1 | 0-1 | 22
0-1 | 0-1 | 21
0-1 | 0-0
0-0 |0-0 | 14
0:0 | 0-0 | 18
0-1 | 0-1 | 20
0-2 |0-1 | 21
0-2 | 0-4 | 22
0-3 | 0-4 | 20
0-6 | 0-5 | 20
1-3 | 1-2 | 20
1-1 | 1-0 | 20
1-7 | 1-3] 21
1:6 | 0-9 | 20
2-4 11-3 | 20
1:5 | 0-8 | 20
1-9 | 1-6 | 21
1-7 | 1-1 | 20
1-0 | 1-2 | 20
1-9 | 0-8 | 20
2-3.|1-2 | 19
1-7 | 1-1 | 19
1-7 | 1-2 | 19
1-4 | 1-2 | 19
1:6 |0-6 | 18
1-8 | 2-0 | 20
2-6 |2-4 | 18
1-8 |0-7 | 17
1-6 | 2-0 | 18
2-2 |0-5 | 18
1-4 | 1-3 | 20
1-5 |0-4 | 18
0-8 |0-4 | 18
0-9 |0-8 | 18
1-8 | 1-5 | 19
2-1 | 1-3 | 20
2-1 11-6 | 19
2-5 |1-1 | 18
2-3 .)1-5 | 19
2-7 |2-1 | 19
2-3 | 1-6 | 21
2:5 |1-8 | 19
1-5 |0-5 | 19
0-6 | 0-2 | 17
0-2 | 0-0 | 17
0-5 | 0-3 | 18
0-3 | 0-1 | 20
0-2 10-1 | 20
Clouds,
Se. : C.-s. : Ci.,
moving
from
pt. pt.
aS 8 28}
29)
29:
2:29:
Leafeafealelealsse—fehicsfesp<e|
Sky
clouded.
223
Species of Clouds and Meteorological Remarks.
Large cirro-cumalo-strati; cirro-strati; cumuli. (=)
As before. [rather electric looking.
Inky detached seud; cir.-cum.-str. ; cum.-str. on hor. ;
Cirro-cumulo-strati ; cirro-strati.
Id. ; id.
Td. ; id.
Id. ; id.
Id.
Cirro-stratus on E. horizon.
Light cirrus to N.; cirro-stratus or scud to SE.
Cirri and cirro-strati on horizon.
Cirro-strati, &c., to E.
Cirri and cirro-strati.
Cirro-cumuli ; cirrous haze. © [cap of scud. ©
Loose cir.-cum.-str. ; small cir,-str.; lin. & tufted cir.; Cheviot has a
ri —)
Cir.-cum. in patches ; cir.-str. ; scud on Cheviot & N. hor. ; cir,; cir:
Cir.-cum. ; cir.-str.; scud on horizon. © (haze. ©
Loose cum.; cir.-cum.-str.; cir.-str.; loose seud on hor. ©
As before.
Loose cum. ; cir.-cum. ; tufted cirri ; portion of a halo.
Id. ; id. ; cir.-str.; cir. mass; halo. @
Id. ; ides id. 9
Id.; many whale-like cir.-str. on hor. ; mot. cirri & thickening
Nearly as before. (cir. haze. ©
lids cir. haze less dense & portion of a halo
Scud ; cir.-str.; cir.-cum. and cir. haze. [visible.©
Scud ; cirro-stratus and haze.
das id.
Id.; cirro-stratus.
Id.
Id.
Id.; streak of light on E. horizon.
Scud ; rain”?
Id.; drops of rain
Id.
Tdos) ram?
Scud moving rapidly ; cirrous mass above.
Scud; drifting rain?
Id-; ram'*; sky fo NW.
Id.; cirro-strati.
Loose seud ; loose cumuli and cirro-cumuli. S)
Scud and loose cumuli. (0)
Id. ; cirro-strati on E. horizon. ©
Id. ; slight showers occasionally.
Id. ©
Id. ©
Id.
lids cirro-cumulo-strati. a
Id. ; slight shower.
Scud; cir.-cum.-str.; cum.-str.; cir.-str.; rainbow; rain!? ©
As before ; nimbi; sky wild-like ; passing showers.
Scud ; very thick dark scud ; cirro-strati; showers?—
Thick scud. [since 72.
Seud and cirro-strati.
Id. }
Cirro-cumulo-strati. )
3 he direction of the wind is indicated by the number of the point of the compass, reckoning N. =0, E.=8,8.= 16, W.=24. The
‘Mions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
- foug. 224 5 45m,
A parhelion and solar halo were seen.
224 Hovurty METEOROLOGICAL OBSERVATIONS, AUGUST 23—26, 1845.
THERMOMETERS.
Gott BARO-
Mean METER
Time. || at 32°. | Dry. | Wet. | Diff.
daaeh: in. 2 2 e
23 234|| 29-641 || 61-3 | 55-8 | 5-5
24 13 || 29-668 || 51-3 | 49-6 | 1-7
14 654 || 49-7 | 48-2 | 1-5
15 646 ||50-1 | 48-4 | 1-7
16 625 || 50-9 | 49-4 | 1-5
17 606 || 51-8 | 50-1 | 1-7
18 587 || 52-2 | 50-7 | 1-5
19 588 || 52-8 | 51-5 | 1-3
20 575 || 53-4 | 52-0 | 1-4
21 563 || 53-0 | 52-0 | 1-0
22 555 || 54-6 | 53-3 | 1-3
23 538 ||57-7 | 55-3 | 2-4
17 767 || 54-3 | 50-1 | 4-2
18 802 || 54-2 | 50-1 | 4-1
WIND.
Maximum
force in From
1h, 10m
lbs. | Ibs. pt.
0-8 |0-4 | 24
1-5 |0-1 | 18 |
0-1 |0-1 | 20
0-2 |0-1 | 20
0-1 |0-1 | 19
0-2 |0-2 | 18
0-2 |0-2 | 16
0-4 |0-2 | 18
0:3 |0-3 | 17
0-2 |0-2 | 18
0-3 |0-2 | 17
0-7 |0-6 | 17 |
0-6 |0-2 | 18 |
0-8 | 0-4 | 17 |
0-9 |1-2 | 18
17) | 1-3) | as
1-4 |0-8 | 17
1-2 |0-9 | 18 |
1-0 | 0-5 | 19 |
1-2 |0-7 | 19 |
1-2 |}0-9 | 18
0-8 |0-3 | 28
0-1 |0-1 | 20 |
0-2 |0-1 18 |
0-2 |0-1 | 20 !
0-2 |0-1 | 24
0-2 |0-1 | 24
0-2 |0-1 | 23 |
0-1 |0-1 | 22
0-2 |0-2 | 19 |
0:2) 0-221)
0-2 |0-1 | 22 |
0-2 |0-1 | 22 |
0-7 |0-5 | 22 |
O27 N07 1623
1-1 |0-8 | 23
1-4: 1-5 | 26.)
ef Og, lmao
1-8 | 1-2 | 26
1-8 |1-4 | 24
ee |\ ee, | 20:
2-8 |1-8 | 24
1-9 |1-8 | 26
PALSY (lil oBF Nee) 1
15) 2)" 26")
1-0 | 2-2 | 26 |
1-9 | 1-2 | 22
1-3 |1-0 | 24
1-6 |0-4 | 24 |
0-4 |0-4 | 20
1-1 |0-3 | 26
|0-3 10-2 | 24 |
0-6 | 0-2 | 28
0-5 |0-7 | 28
0-5 |0-9 | 28
Clouds,
|Se.: C.-s. :Ci.,
moving
from
pt. pt. pt.
24:—:—
Sky
clouded.
Species of Clouds and Meteorological Remarks. H
,
Sunday—Scud and loose cum. ; showers in the foren
Cirro-cumulo-strati.
Id.
Id.
Seud and cirro-stratus.
Thick scud ; cirro-stratus.
Thick cirro-stratus and seud ; rain®”?
Loose scud ; mass of cirro-strati.
Seud ; id. ; rain?
clas ids; rain!
id? : id.
tds id.
Tats id.
ick id.
ds id); clouds breaking.
Scud and loose cumuli; cumulo-strati; cirro-strati.
Td; id. rain!
Td: ; id.
Seud ; cirro-stratus ; rain}?
Id. ; id.
Drizzling rain!”
Seud and cirro-stratus.
Id., clearing off from westward.
Seud and cirro-strati.
Id.
Cirro-cumulo-strati.
Ids cirrous haze.
Seud and cirro-strati.
Id.
Cirro-stratous seud.
dys mass of cirro-strati.
Cirro- FR
Patches of loose scud ; cirro-strati and cir.-cum. ta :
Nido id.
lds id. e
Scud and loose cumuli ; cirro-strati and woolly cirri,
Id. ; cirro-stratus and woolly cirti.
ies thick cirrous haze and cir.-s
Tele id.
ifs Bie id.
Masses of scud and loose cumuli; cirro-strati.
Scud ; loose cum., cir.-str., and cir.-cum.-str.
Woolly cirri and cirro-strati ; scud and cum. near hor.
ids id.
Scud and cirro-stratus.
Id.
Id.
Id.
Id.
Seud and cirro-stratus.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, HB. = 8,8.=16, W.= 24. Th
motions of the three strata of clouds, Sc. (scud),
C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
WIND.
THERMOMETERS.
BarRo- eee. sl) | B(ole-wnron
METER oe eigen
at 32°. || Dry. | Wet. | Diff. || *0TC° 12 [From ee
14, | 10™,
in. 2 % ul Ibs lbs. | pt pt. pt. pt
29-822 || 54-3 | 50-2 | 4-1|/ 1-0 | 0-5 | 30 | —:30:—
851 || 54-8 | 50-8 | 4-0//0-8 | 0-4 | 29 | —:30:—
866 || 56-6 | 52-0 | 4-6] 1-2 |0-5 | 28 |} —: 0:—
893 || 58-1 | 53-2 | 4-9/1 1-6 | 1-2 0 0:—:—
915 || 60-0 | 54-3 | 5-7 |) 1-1 | 0-8 0 0:—:—
934 || 59-7 | 54-2 | 5-5 || 0-8 | 0-2 0 0:—:—
1 955 || 58-7 | 54-7 | 4-0] 0-5 | 0-4 2 0:—:—
2 968 || 60-2 | 54-8 | 5-4 || 0-4 | 0-3 3 0:—:—
3 977 || 59-6 | 54-8 | 4-8]/0-3 | 0-2 4 |—:30:—
4 987 || 60-3 | 55-0 | 5-3 || 0-3 | 0-2 1 |—:30:—
5 || 29-999 || 59-7 | 54-4 | 5-3 ||0-3 | 0-2 6
6 || 30-005 || 59-4 | 53-7 | 5-7|/0-3 | 0-1 4 | 28:—:—
7 017 || 59-0 | 54-7 | 4-3 | 0-2 | 0-1 4 )}—:29:—
8 042 || 53-3 | 52-0 | 1-3] 0-2 | 0-1 4 |}—:29:—
9 052 || 49-0 | 47-4 | 1-6|/ 0-0 |0-0 | 30
10 068 || 49-3 | 48-8 | 0-5 || 0-1 | 0-0
1] 079 || 50-2 | 49-4 | 0-8 || 0-1 |0-0 | 18
12 083 || 50-3 | 49-6 | 0-7 || 0-0 | 0-0 | 20
13 || 30-078 || 48-3 | 47-8 | 0-5||0-0 |0-0 | 20
14 D 0-0 |0-0 | 26
15 0-0 |0-0 | 22
0-0 | 0-0 | 16
0-0 |0-0 | 22 || —: 1:—
0-0 |0-0 | 24 |} —: 1:—
0-0 |0-0 | 20 23 1
0-0 |0-0 | 24/16: 2: 1
0-1 |0-0 | 17
0-1 {0-0 | 15
0-1 |0-1 | 26
0-1 |0-1 | 20
0-1 |0-1 | 22
0-1 |0-1 | 20 | 16:—:—
0-1 | 0-0 2
0-0 |0-0
0-1 | 0-1 2
0-1 |0-0 | 19
0-1 |0-1 | 21
0-1 |0-1 | 24
0-1 | 0-0 0
0-1 |0-0 | 18
0-1 | 0-0
0-0 | 0-0
0-1 |0-0 | 18
0-0 | 0-0 | 20
0-0 |0-0 | 16
0-1 |0-1 | 24
0-2 | 0-1 | 24
0-1 |0-1 | 22
0-1 |0-0 | 24
0-1 |0-1 | 19 |} 298:—:—
O-250:1 | 18 95 :— > —
0-1 |0-1 | 21 | 26: —:28
(O22 0-1 |) 18:1) 27 :—= : —
0-1 |0-1 | 20 | 27:—:—
0-1 |0-1 | 30 || 26: —:—
0-3 |0-2 | 28 || 26:—:—
Sky
clouded.
HourLy METEOROLOGICAL OBSERVATIONS, AUGUST 26—29, 1845. 225
Species of Clouds and Meteorological Remarks.
Sky covered with cirro-strati.
Cirro-cumulo-strati ; cir.-str.; patches of scud to N. ©
Sheets of cirro-strati; patches of scud to S. ©
Loose cumuli; cirro-strati; patches of seud to S. @
Id. ; id.
Id. ; id.
Id. ; id.
ide; id. (2)
Cirro-cumulo-strati; cirro-strati. (s)
Cumulo-strati ; cirro-strati; woolly cirri. oO
Cirro-strati ; woolly cirri. ©
Scud ; cirro-strati and light cirri. ©
Detached cir.-str., rad. from NNW. ; cirri; ragged scud on Cheviot. ©
Cirro-strati; woolly cirri and haze.
Bands of woolly cir.-str., rad. from NNE. and SSW. ; cirrous haze.
Cirro-strati and haze.
Overcast.
Id.
Clouds on horizon,
Cirro-strati; stratus on the ground,
Cirro-cumuli ; id.
Cirro-strati.
Cirro-cumulo-strati; clouds tinged with red to E.
Id. ; cirro-strati.
Loose cirro-strati ; cirro-cumuli.
Patches of loose seud ; loose cir.-str. ; cir.-cum.; all to E.
Cirro-strati on S. horizon.
Id.
Scud and cirro-strati on SE. horizon.
Seud, cirro-strati, and haze, on SE. horizon.
Id., id., id. round horizon.
Small cumuli; cirro-stratous bank ; cirrous haze to E.
As before.
Small cumuli, cirri, and cirro-strati.
Id., id., id.
Id., id., id.
WITS
OOOO OO0O0O0000
Woolly cirri; cirrous haze.
Nels id.
Clear ; one or two patches of cirrus.
Id.
Id.
Clear.
Id.; haze on NE. horizon.
Cirro-strati and haze on KE. hor.; mist in the valleys, ))
Dense fog ; a star visible in zenith.
Id. ; objects invisible at 2 of a mile.
Misty scud and cir.-str. round hor.; fog clearing off.©
Seud to S.; cirro-strati and cirri near horizon. (0)
Patches of scud ; cirri to NW. (0)
Id. ; streaks of cirri rad. from N by E. ©
Loose scud ; cirri. ©
Scud and loose cumuli; cirri.
GBs id. 2)
Id. ; id.
Id. ; id.
MAG. AND MET, oBs. 1845.
Sei
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H. = 8, 8. = 16, W.=24. The
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
226
: THERMOMETERS. WIND.
Gott. Baro-
Mean METER Maximum
Time. |) at 32°. || Dry. | Wet. | Dift.|/ force in [Prom
14, | 10™,
GE ins in. 3 © e Ibs. | lbs pt.
99 3 || 30-116 || 71-4 | 64-1 | 7-3 || 0-3 |0-1 | 22
4 122 || 70-2 | 63-2 |7-0 || 0-3 | 0-2 | 26
5 119 || 70-0 | 62-5 | 7-5 ||0-3 | 0-1 | 25
6 117 || 68-6 | 61-87T/6-8 ||0-2 |0-1 | 22
7 114 || 64:8 |61-7 | 3-1 ||0-1 | 0-0 | 24
8 128 || 62-2 58-71 3-5 10-2 | 0-1 | 24
9 135 || 57-8 | 56-0 | 1-8 ||0-2 | 0-1 | 22
10 140 | 55-8 | 54-5 | 1-3 ||0-1 |0-1 | 22
11 145 || 52-6 | 52-1 |0-5 ||0-1 |0-0 | 18
12 147 || 51-8 | 51-7 | 0-1 || 0-0 |0-0 | 20
13 || 30-136 || 50-5 | 50-2 |0-3 || 0-0 | 0-0 | 19
14 140 || 50-2 | 50-0 | 0-2 || 0-0 | 0-0 | 24
15 145 ||48-9 |48-8 | 0-1 || 0-0 | 0-0
16 141 || 47-8 | 47-7 | 0-1 || 0-0 | 0-0
il 145 ||46-9 | 46-7 | 0-2 ||0-1 |0-0 | 20
18 142 || 48-0 | 47-6 | 0-4 |/0-1 |0-0 | 18
19 150 || 49-0 | 48-6 |0-4 ||0-0 |0-0 | 20
20 159 || 54-1 | 53-5 | 0-6 || 0-1 | 0-1
Pal 167 || 60-0 | 58-8 | 1-2 ||0-1 | 0-2 | 24
22 164 || 63-7 | 60-8 | 2-9 ||/0-3 | 0-3 | 24
23 160 || 67-2 | 61-8 |5-4 ||0-3 | 0-3 | 24
30 O 161 || 69-2 | 62-7 |6-5 ||0-4 |0-4 | 25
1 148 || 71-0 |63-7 | 7-3 || 0-4 | 0.2 | 22
2) 144.|| 71-6 | 64-5 |7-1 || 0-4 | 0-2 | 21
3) 141 || 72-6 |64-6 |8-0 ||0-6 |0-3 | 24
4 140 || 70-7 |63-1 |7-6 ||0-5 | 0-4 | 28
5 130 || 69-3 63-4T 59 || 0-4 | 0-2 | 27
6 126 || 67-9 | 61-7 |6-2 || 0-3 |0-1 | 28
7 125 || 64-8 60-7] 4-1 ||0-3 |0-3 | 27
8 140 || 62-5 |58-9 | 3-6 ||0-3 | 0-1 | 22
9 141 | 61-5 |57-9 |3-6 || 0-7 |0-3 | 22
10 152 || 58-9 | 56-6 | 2-3 || 0-3 |0-1 | 23
11 157 || 57-9 | 56-0 | 1-9 || 0-1 | 0-1 | 24
12 153 || 55-7 | 54-6 | 1-1 || 0-1 | 0-1 | 16 |
233 30-175 || 65-4 | 59-6 | 5-8 |/ 0-1 | 0-1 4 |
3113 || 30-162 || 53-1 | 52-4 |0-7 || 0-6 | 0-0
14. 154 || 54-0 | 53-4 | 0-6 || 0-0 | 0-0
15 148 || 54-8 | 54-0 |0-8 || 0-0 | 0-0
16 137 || 55-0 | 54-1 |0-9 || 0-0 | 0-0
17 124 || 55-0 | 54-0 | 1-0 ||0-0 | 0-0 | 24
18 125 || 55-0 | 54-1 |0-9 ||0-0 | 0-0 | 20
19 121 || 56-1 | 55-1 | 1-0 || 0-0 | 0-0 | 22
20 123 ||58-5 |57-0 | 1-5 ||0-1 |0-0 | 22
21 122 || 63-0 | 60-0 | 3-0 ||0-1 |0-0 | 18
92 113 || 65-9 | 61-2 | 4-7 ||0-0 |0-0 | 20
23 105 || 68-5 | 62-7 |5-8 ||0-1 |0-1 | 24
ie 8) 094 ||68-2 |62-1 |6-1 |/0-1 | 0-1 0
1 089 || 69-4 | 63-6 |5-8 |/0-1 | 0-1 | 18
2 075 || 70-0 | 62-6 | 7-4 ||0-1 | 0-1 | 30
3 059 || 70-6 | 62-0 |8-.6 || 0-1 | 0-1 | 28
4 047 || 72-9 | 63-8 |9-1 ||0-2 | 0-3 | 28
5 041 || 67-7 |62.4 |5-3 || 0-4 | 0-4 4
6 039 || 65-0 | 60-5 | 4-5 || 0-3 | 0-2 6
Ff 048 || 62-0 | 58-7 | 3-3 |/0-4 | 0-3 4
8 064 ||58-2 | 56-3 | 1-9 ||0-6 | 0-5 3
HourLty METEOROLOGICAL OBSERVATIONS, AUGUST 29—SEPTEMBER 1, 1845.
Clouds,
Se.: C.-s.: Ci.,
moving
from
pt.
. .
| Id.
Species of Clouds and Meteorological Remarks.
Scud and loose cumuli.
Scud ; cirri.
Loose cumuli ; cirri.
ifsl, 2 id.
Loose eee 3 cirro-strati ; cirri and haze round h
Cirro-strati ; cirri and haze on horizon.
dl: id.
Patches of cirro-stratus to N.; faint aurora.
GES id.
tds id.
Haze and cirrous clouds to N.; faint aurora.
Cirro-strati to N.
Patch of cloud.
Id. q
Cirro-cumuli ; cirro-strati; cirri; fog in hollows,
Woolly, mottled, and linear cir. ; patches of cir.-e
As before. @ (cir.-str.; fog in he
Cirri ; cirrous haze and cirro-strati over the sky.
Seud ; cirri as before, with large feathers rad. from
Patches of scud ; woolly cirri; sheets of cirro-strat
Seud, cirri, &c., as before. © fh
Patches of seud ; woolly cir, and cir. haze; faint
Thick woolly cir. ; cir.-str. ; cir. mass.
Woolly cirri.
iGhE cirrous haze; patches of cumuli.
itd: id. and cirro-strati.
Woolly cirro-cumulo-strati; cirri; cirro-strati,
Woolly cirri ; cirrous haze.
Id. ; id.
fy; id.
Cirrous bands radiating from N by W.
Cirri to N.
Cirri and cirro-strati, chiefly to N.
Faint Aurora seen through clouds.
Sunday—-a.m. Nearly clear, a few cirri. p.m. Ovi
{ with a loose sort of cirro-stratous scud or cir.-cul
Mass of cirro-stratus.
Cirro-stratous scud.
Id.
Id.
Id.,
|| Cirro-cumulo-strati.
: Td.
| Seud ; loose cumuli ;
Id. ; Id.
or large cirro-cumulo-strati
eirro-cumulo-strati.
ida
Seud ; loose cumuli ;
Cirro-stratous seud.
hazy towards horizon.
hazy.
Id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, H. = 8,8. = 16, W.= — ni
motions of the three strata of clouds, Sc. (scud), C
Aug. 304 11 56.
the horizon.
8. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. ;
A shooting-star to E., magnitude 2, passing, towards the N., over 20° in 2 or 3 seconds; the course inclined
HourLy METEOROLOGICAL OBSERVATIONS, SEPTEMBER 1—3, 1845.
Dry. | Wet.
55-7
55-2
59-1
54-8
54:5
54-3
54-0
54-0
53-8
53-6
54-8
04:8
57-2
56-6
56-1
56-0
55-9
55-5
55-3
55-2
54:8
54-4
55-2
56-3
54-9
52-8
53.4
52-4
52-8
57-3
56:7
57:8
56-0
55-3
54.2
52.9
50-8
47.4
42.6
42.4
DIAMAR W WH SCOHDIRUAWNHOWNK SOHNYARUHA w wow? |
Sowa
NES
i)
oa
oo
53-9
52:3
53-0
52-4
51-0
48-4
47-4
47-0
47-2
47-4
Wr COMNMAANHRWNHH OS
(=)
ew
bo
30-049
052
15 047
47-9
48-0
47-4
49-8
48-3
THERMOMETERS.
WhRAROCUAAKRHONMWOAR HORA?
4:5
WIND.
Maximum
force in
An.
SS See Seees 2
ee
From
wnwo Rw p AS
— — bO
PORDRODFEARAKHRADA
oo
i)
for)
SCOUWWNWHK OWN OO
21
Clouds,
Se. : C.-s. : Ci.,
moving
from
pt. pt. pt.
ro | eres
oo
ept. 14 112,
Kept, 24 12h 5m_Q5m,
} 45°,
Sept. 24 14h 5m,
Sept. 24 15h 5m,
Observation made at 11» 10™,
Five shooting-stars seen to SE., all at about 30° altitude, moving generally towards S., but the directions vary-
Sky
clouded.
Species of Clouds and Meteorological Remarks.
227
Cirro-stratous scud.
Id.
Id.
Id.
Cirro-stratous scud.
Misty scud ; cirro-stratous scud.
Dense homogeneous mass of cirro-stratus.
Ike
Misty seud.
Id.; rain?
les id.
Cirro-stratous scud ; cirrous mass.
Id.
Seud ; cirro-cumulo-strati.
Cirro-strati.
Scud on horizon ; cirro-stratous scud.
Cirro-stratous seud ; cirro-cumulo-stratus.
ielae id.
Cirro-cumulo-stratus.
Faint auroral light with faint streamers to NW.
Very clear; a faint light, low on N. horizon.
Cirro-stratus on N. horizon.
Cirro-stratus on N. horizon.
le
Cirro-stratus to N.
Scud.
Id.
Id.; cirrous haze to W., tinged with red.
Cir.-cum.-str.; id. ; fog bank to E.
ars sheet of cirrous haze to S.
Td.
lighe patches of scud on horizon.
Seud ; cirro-cumulo-strati.
Id. ; id. ; cirro-strati.
Loose cumuli; woolly cirri.
likes cirro-cumulo-strati.
id.
1615 =
ids:
Cirro-cumulo-strati ; cirrous haze.
td:
Thick scud.
Id. ;
Very dark.
Td.
Td.
id.
dark.
Very dark.
Id.
stratus on the ground.
cirrous haze to S.
fine rain"
8880008000
reticulated cirri; cirrous haze.
Shooting-star to SH., altitude 25°, moving eastward, magnitude 2.
Shooting-star to E., altitude 5°, moving towards ESE., magnitude 1; at 6™, another to S. moving southward.
THERMOMETERS. WIND.
Gott. BARO-
Mean | METER Maximum
Time. | at 32°. || Dry. | Wet. | Dif.) force in [from
14, | 107,
‘deeb. in. i 2 i lbs. | lbs. pt.
3 16 || 30-045 || 48-5 |47-6 |0-9 ||0-0 |0-0 | 20
17) 045 | 48-8 | 47-8 | 1-0 || 0-0 |0-0 | 20
18 046 || 48-5 | 47-2 | 1-3 | 0-0 |0-0 | 20
19 055 || 49-4 | 48-3 | 1-1 ||0-0 |0-0 | 22
20 067 || 51-6 |49-7 |1-9 || 0-1 |0-0 | 22
21 073 || 53-5 |49-9 | 3-6 0-1 | 0-0 6
22 072 || 55-0 | 50-6 |4-4 | 0-1 | 0-0 6
23 069 | 57-6 | 52-4 | 5-2 | 0-0 | 0-0 8
4 0 072 |56-6 | 51-0 |5-6 || 0-1 | 0-1 6
1 077 155-1 | 50-4 | 4-7 || 0-1 |0-1 4
2 074 || 55-8 | 50-8 |5-0 | 0-1 | 0-1 4
3 068 || 54-9 | 50-7 |4-2 ||0-1 | 0-1 6
4 065 || 55-4 | 50-6 |4-8 | 0-1 |0-1 | 10
5 060 || 55-0 |50-5 | 4-5 || 0-1 | 0-1 8
6 059 || 53-7 | 50-3 | 3-4 | 0-2 | 0-1 4
a 058 || 52-7 | 50-2 | 2-5 ||0-1 | 0-1 8
8 061 || 51-9 |49-7 | 2-2 ||0-1 |0-0 7
9 064 || 50-5 | 49-0 | 1-5 | 0-1 |0-1 | 31
10 070 || 50-0 | 48-7 | 1-3 || 0-1 | 0-0
11 070 ||49-5 | 48-7 |0-8 || 0-0 |0-0 | 28
12 066 ||49-1 |48-6 |0-5 || 0-0 |0-0 | 25
13 || 30-057 ||48-9 |48-3 |0-6 |10-0 |0-0 | 25
14 053 || 48-9 |48-2 |0-7 || 0-0 | 0-0
15 046 | 49-2 | 48-4 |0-8 0-0 |0-0 | 25
16 041 || 48-7 | 48-0 |0-7 || 0-1 |0-0 | 25
17 035 || 48-2 |47-5 |0-7 || 0-0 | 0-0 | 24
18 034 || 47-2 |46-5 |0-7 || 0-0 | 0-0 | 20
19 036 ||47-7 | 47-0 |0-7 || 6-1 |0-0 | 12
20 037 || 51-7 | 50-3 | 1-4 || 0-1 | 0-0 8
21 042 || 53-4 | 51-0 | 2-4 |0-1 |0-0 6
22 045 || 53-7 | 49-7 |4-0 || 0-1 | 0-1 4
23 046 | 54-8 | 50-3 | 4-5 || 0-2 | 0-1 6
by 0) 046 || 55-3 | 49-7 | 5-6 || 0-3 | 0-3 Tf
1 049 | 54-0 | 48.8 | 5-2 || 0-3 | 0-2 6
2 046 | 55-0 | 49-0 |6-0 | 0.3 | 0-2 4
3 036 || 56-0 | 49-4 |6-6 || 0-3 | 0-2 4
4 022 155-7 | 49-3 |6-4 10-3 |0-1 | 12
5 027 || 54-7 | 49.2 | 5-5 ||0-2 |0-1 | 10
6 030 | 53-5 48-1 5-4 || 0-2 | 0-1 7
i 037 || 50-8 | 47-4 | 3-4 || 0-1 |0-1 | 20
8 047 || 49-0 46-9} 2-1 || 0-1 |0-1 | 23
9 058 || 48-0 | 46-4 | 1-6 || 0-1 | 0-0 | 20
10 057 ||44-8 |44-2 | 0-6 || 0-1 | 0-0 8
11 062 | 41-8 |41-1 |0-7 || 0-1 |0-0 | 20
12 | 066 | 38-9 | 38-5 |0-4 ||0-0 |0-0 | 20
13 | 30-072 || 38-7 |38-3 | 0-4 || 0-1 |0-0 | 24
14) 072 || 38-3 | 38-0 |0-3 | 0-0 |0-0 | 18
15 077 ||37-8 | 37-4 |0-4 || 0-0 |0-0 | 18
16. 080 || 40-4 | 40-0 |0-4 || 0-0 |0-0 | 20
17) 082 || 39-5 | 39-1 |0-4 ||0-0 |0-0 | 22
18 | 090 | 40-0 |39-4 |0-6 || 0-1 |0-1 | 24
19 | 097 | 41-7 | 40-7 | 1-0 | 0-1 |0-0 | 15
20 | 093 || 44-7 |43-2 |1-5 |/0-0 | 0-0 | 24
21 | 098 || 47-0 | 45-2 | 1-8 || 0-0 |0-0 | 20
22 097 || 50-8 | 48-4 | 2-4 10-1 10-0 | 24
23 | 105 || 53-4 | 50-2 | 3-2 || 0-0 | 0-0 | 28
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, S.= 16, W.= 24
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Clouds,
Sc.: C.-s: Ci.,
moving
from
pt.
pt. pt.
warm | | I,
Sky
clouded.
Hovurty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 3—5, 1845.
Species of Clouds and Meteorological Remarks,
Seud.
Cirro-stratous scud.
ids;
Cirro-cumulo-strati.
Id.
Scud, chiefly on horizon ; cirro-cumulo-strati,
Masses of loose cumuli; cirro-cumulo-strati,
ides id.
ae id,
Thick scud and loose cumuli.
Thick cirro-stratous scud.
Id.
Id.
Id.
Id.
Id.
Id.
Id.
Id.
Id.
Id.
Thick cirro-stratous scud.
Scud and cirro-cumulo-stratus ?
Id.
cirro-strati.
—_-
bi
4
'
é
— | Ss Ss Se ee ee
sky to NE.
Loose ragged scud and cirro-cumulo-stratus.
Cirro-cumulo-strati; cirro-strati; loose scud.
Isles id. ; id.
Scud and loose cum. ; large loose cirro-cumulo-str
Tides cumuli ; cirro-strati.
Jakes ids id.; pat. of
Scud and loose cumuli; cirro-strati; haze.
Cirro-cumulo-strati ; ada id,
Seud and loose cumuli ; id. ; id.
lise ad. id.
ic he id.
Masses of cirro-strati ; 1d. id,
Cirro-stratous scud ; cirri to N.
Cirro-cumulo-strati ; id.
Cirro-stratous scud.
Id.
Clouds on E. horizon,
Clear.
Id.
Clear.
Cirro-stratus to N.
Seud and cirro-stratus.
Id.
Seud; cirro-cumulo-strati.
Cirro-stratous scud.
Id. ; cirri.
Id. ; id.
Id.
Id.
Id.
reer EE EE ee
Hovurty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 6—9, 1845. 229
THERMOMETERS. WIND. Clouds,
; Se.: C.-s.: Ci] Sk
Dry. | Wet, | Diff Rear Aa FOURS eel Species of Clouds and Meteorological Remarks.
1h, |10™.
2 C 2 Ibs. } lbs pt. pt. pt. pt 0—10.
56-7 | 51-6 | 5-1 | 0-1 {0-1 | 16 | 16:—:—| 10-0 |] Cirro-stratous seud.
58-0 | 52-S | 5-2 |/0-1 {0-1 | 23 |} 14:—:—| 9-8 Id.
58-3 | 52-7 |5-6 |/0-1 |0-0 | 14 || 13:13:— J] 9-0 |] Seud and cirro-cumulo-strati ; atmosphere very hazy.©
59-3 | 53-4 | 5-9 0-1 10-1 | 12 ||} 138:13:—] 9-8 Id. ; id.
58-0 | 51-6 |6-4 | 0-1 |0-1 | 12 ||} 12:12:—J]| 9-8 || Loose cumuli and cirro-cumulo-strati ; id. ®
56-8 | 51-0 |5-8 | 0-1 |0-1 | 6 | 4:12:—| 9-8 || Scud; cumulo-strati; hazy atmosphere.
54-6 | 50-6 |4:0 | 0-1 | 0-1 7 \||\—:12:—|| 8-0 || Cirro-cumulo-strati ; cumuli on horizon.
54-0 | 51-2 |2-8 |/0-1 |0-1 | 10 |} —:12:—]) 8-0 Id. ; atmosphere hazy.
50-0 | 48-3 |1-7 | 0-1 |0-:0 | O 7-5 Id. ; id.
49-0 | 47-8 }1-2 ]0.0 |}0-0 | 6 8-0 Id.
46-8 | 46-0 |0-8 | 0-0 |0-0 | 24 5:0 || Thin sheets of cirro-cumulo-strati scattered over the sky.
43-9 | 43-6 |0-3 | 0-0 | 0-0 4-0 || Cirro-strati.
42-8 | 42.4 |0-4 | 0-0 |0-0 | 20 4-0 Id.
51-4 |49-8 |1-6 }0-1 |00 |; | sf ween
43-5 | 43-0 |0-5 || 0-5 | 0-0 9-8 || Cirro-cumulo-strati.
42-3 | 41-9 |0-4 || 0-0 | 0-0 7-0 Id.
41-2 | 40-9 |0-3 ||0-0 |0-0 | 22 5-0 Id.
41-1 | 40-9 | 0-2 ||0-0 |0-0 | 16 8-0 Id. ; cirri ?
43-3 | 43-0 | 0-3 || 0-1 |0-1 | 24 9-5 Id., denser ; sky red to E.
44-3 |43-9 |0-4 ||0-0 |0-0 | 18 || —:20:—J| 9-9 || Cir.-str. scud ; cir.-cum.-str.; very red to E. ; fog in the
45-3 | 45-0 |0-3 || 0-0 |0-0 | 22 10-0 || Cirro-cumulo-strati; cirro-strati. [hollows.
46-8 | 46-2 |0-6 | 0-0 |0-0 | 23 10-0 || Cirro-stratous scud ; cirrous mass.
52-2 | 50-6 |1-6 | 0-0 |0-0 | 22 || 22:—:—J]| 10-0 || Seud; thick cirrous haze and cirro-stratus.
56-0 | 53-1 | 2-9 ||0-3 |0-3 | 20 || 22:—:-—| 10-0 || Id.; id.
58-2 | 53-5 |4-7 |/0-5 |0-5 | 20 | 22:—:—| 10-0 || Ia.; icles solar halo.
60-0 | 55-8 | 4-2 ||0-5 {0-5 | 18 ||} 19:—:— 9-8 Id.; thick cirrous haze. (Ss)
59-7 | 54-8 | 4-9 | 0-7 |0-5 | 18 || —:—:19] 9-9 |) Thick woolly cirri; cirro-stratus. @
61-7 | 56-0 |5-7 ||0-6 |0-5 | 20 9-9 Td; id. [patches of scud. ©
61-8 | 56-8 |5-0 | 0-6 |0-5 | 19 || —:24:—]) 4-5 || Woolly cir.-cum.; cir.-str. with mottled edges; cir. haze;
62.7 |57-0 | 5-7 || 0-5 |0-4 | 20 || —:—:26]) 4-5 || Woolly cirri; sheets of cirro-strati; cumuli. (0)
61-8 | 56-6 | 5-2 || 0-5 |0-2 | 18 || —:—:27] 7-5 || Sheets of woolly cirri; cirro-cumuli and cirro-strati. ©
60-7 | 55-4 |5-3 |/0-5 |0-3 | 19 || —:—:26]| 9.0 Id. ; id.
57-3 | 53-3 |4:0 | 0-4 |0-3 | 22 7-0 Id. ; id. »)
53-6 | 51-2 | 2-4 |/0-3 |0-1 | 22 8-0 Id. ; id.
53-3 | 50-8 | 2-5 |/0-3 |0-3 | 20 5-0 Td. ; id.; sky in zenith.
52-9 | 50-5 | 2-4 |/0-3 |0-1 | 16 7:0 || Cirro-strati; cirri.
51-6 | 49-4 | 2-2 |/0-1 | 0-0 | 21 8-0 Td.
51-7 | 49-6 | 2-1 ||0-1 |0-0 | 20 9-8 Id.
52-9 | 51-0 | 1-9 || 0-4 |0-1 | 18 9-9 || Cirro-strati.
53-5 | 51-2 | 2-3 10-3 |0-3 | 22 9-9 || Scud and cirro-stratus.
54-1 |51-7 | 2-4 || 0-6 |0-5 | 19 9-7 || Seud ; cirro-strati.
53-5 | 51-6 | 1-9 || 0-4 |0-3 | 20 9-0 Ill. id.
54-1 | 51-9 | 2-2 || 1-1 | 0-1 | 18 9-9 || Id.; id.
54-4 | 52-1 |2-3 || 0-7 |0-0 | 12 | 20:22:—|| 9-7 |] Loose scud; cirro-strati. [cir.-str. and cir.-cum.
56-3 | 54-0 | 2-3 || 0-6 |0-2 | 24 || 21:23 :— 9-0 Id. seems to form at an altitude of 15°—20°;
58-0 | 55-1 | 2-9 | 0-6 |0-5 | 20 | 21:24:—1]| 9-5 || Occasionally thin patches of scud; loose and dense masses
58-7 | 55-6 |3-1 || 1-1 |0-7 | 20 || 21:24:—|| 9-9 || As before. [of cirro-strati.
60-2 | 56-8 | 3-4 || 1-2 |1-2 | 20 |} 21:24:—|| 9.9 Id.
61-5 | 57-7 |3-8 || 1-4 |1-5 | 21 || 21:22:-~|) 9-9 || Patches of secud ; dense masses of cirro-strati.
61-3 | 57-8 | 3-5 | 2-0 | 1-7 | 22 |}20:20:—|| 9-9 Id. ; id. [rain.
61-4 | 58-2 | 3-2 | 1-2 | 1-1 | 21 || 20:20:—|| 9-9 || Masses of scud and cirro-strati; occasionally drops of
61-3 | 58-1 |3-2 |) 1-1 |1-0 | 22 |}21:—:—| 9.9 Id.
62-1 | 59-0 | 3-1 || 1-2 |1-2 | 20 || 21:21:—j) 9-5 Id. ; sky in patches.
62-1 | 59-0 | 3-1 || 1-7 | 1-7 | 21 10-0 Id.
59-7 | 58-0 | 1-7 || 1-6 |0-5 | 20 || 21:—:—|| 10-0 ' Loose misty scud, moving rapidly.
he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, 8S. = 16, W. = 24. The
mOpns of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
_ AG, AND MET, oBs. 1845. 3M
10
23
at
Hourty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 9—11, 1845.
THERMOMETERS.
Dry. | Wet.
°
58-4
57-4
57-3
57-4
56-1
54-3
53-5
60-9
59-0
54-2
51:3
52-9
54:8
52-5
51-7
51-0
50-6
50-8
50-9
50:3
51-6
51-0
50-7
50-4
50-3
50-2
49-0
47-8
47-0
46:0
46:8
46:5
46-5
46-6
46-9
47-2
47.3
47-1
47-3
47-1
47-7
48-3
49-4
30-0
51-4
51-7
51-2
53-0
51-0
51-0
50-2
49.4
48-9
48-7 | 1
48.4 | 1
48-5 |1-
47-3 | 1
NRE eee eee eb
ONODONONUN ANE
50-1
49-7
Nhe direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8,S.= 16, W.=" 24.
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Diff.
WIND.
Maximum
force in |p
IDE || es
Ibs. | Ibs.
1:7
0-4
0-3
0-7
LK PHAR VWA MATAR WWwWPR wD We
aol
NOWRA HDURD KR WOANWNYRDONARHHASOO
rom
Clouds,
Se. :C.-s.: Ci.,
moving
from
Boo BB OP PP WB OO &
DOM OM
714:
x16:
14:
14:
ba
nae ea. Species of Clouds and Meteorological Remarks,
0—10.
3-0 || Loose misty scud, moving rapidly ; cir.-cum.-strati,
10-0 Tae id. 13
9-5 || Seud.
9-9 || Id.; cirro-cumulo-strati.
9-0 || Id.
4:5 || Id.; cirro-strati.
10-0 || Id.; id.
5:0 || Seud; cirro-strati.
1-5 \\tae id.; mist in the hollows.
10-0 || Id.; id.
10-0 || Id.; rain®?
10-0 Id.
10-0 || Id.
10:0 || Loose misty scud ; drizzling rain?”
10-0 id? id.
10-0 ide id.
10-0 || Seud.
10-0 Id.
10-0 Td.
10-0 Id.; cirro-stratous scud.
10-0 de; id.
10-0 aes id.
9-5 Id. ; id. ; clouds breaking.
4-0 Id.
9-0 || Cirro-stratous scud.
7-5 || Scud and cirro-stratous scud.
10-0 Id.
10-0 Id.
10-0 Id.
10-0 Id.
10-0 Id.
10-0 || Scud and cirro-stratous scud.
10-0 Id.
10-0 Id.
10-0 Id. 4
10-0 Id. :
10-0 Is slightest drizzle of
10-0 Id.
10-0 Id. ; id.
10-0 || Dense cirro-stratus and scud.
10-0 Td.
10-0 Id.
10-0 Id.
10-0 Id.
9-9 Id.
8-0 || Cirro-cumulo-strati ; cirro-strati.
2:5 lial id.; woolly cirri. —
8-0
9-8 || Scud ; cirro-stratous scud.
10-0 || Id.; id.
10-0 || Ia.; id.
10:0 des id.
10-0 as id.
10-0 lide: id.
10-0 || Id.; id.
i
:
HourLy METEOROLOGICAL OBSERVATIONS, SEPTEMBER 1]—14, 1845. 231
! THERMOMETERS. WIND. Clouds
eae seo A ee Se.: Cs: Ci.,| Sky '
: ty 3°. Dry. | Wet. | Diff. force in |pyom moving Noleneedd Species of Clouds and Meteorological Remarks.
from
14, |10™,
le in. ci IY 2 Ibs. | Ibs. | pt. || pt. pt pt 0—10.
3 || 29-875 || 49-4 | 47-7 | 1-7 || 0-0 |0-0 | 20 10-0 || Scud; cirro-stratous scud,
1 870 || 49-4 |47-9 | 1-5 ||0-0 | 0-0 | 16 10:0 || Dark; very slight drizzle.
) 867 || 49-0 | 47-6 | 1-4 ||0-0 |0-0 | 22 10-0 Id.
5 857 || 49-0 | 47-9 | 1-1 || 0-0 | 0-0 10-0 Id.; very slight drizzle.
7 848 || 48-9 | 47-8 | 1-1 ||0-0 |0-0 | 22 10-0 |] Thick seud and cirro-stratus.
3 849 || 49-0 | 48-0 | 1-0 || 0-0 | 0-0 10-0 Td.
i 858 || 49-2 |48-2 | 1-0 || 0-0 | 0-0 8 || 16:—:—J| 10-0 || Dense send and cirro-stratous scud.
yy 854 || 51-3 | 49-1 | 2-2 ||0-0 | 0-0 | 30 || —:17:— || 9-9 |) Cirro-cumulo-stratus. r)
l 858 || 54-7 | 51-3 | 3-4 |/0-1 | 0-1 2 ||\—:17:— | 8-0 lish § scud to W. @
2 862 || 56-2 | 52-2 | 4-0 ||0-1 |0-0 | 14 ||} —:17:—J| 9-9 || Cirro-cumulo-strati and cirro-strati. ®
3 854 ||58-2 |53-5 | 4-7 ||0-1 |0-1 | 14 || —:18:—] 9-9 || Cirro-cumulo-strati.
2, 847 || 61-4 | 56-2 | 5-2 |/0-2 |0-1 | 15 | 18:—:—j 8-5 || Loose cumuli; cirro-strati. e
l 843 || 60-6 | 55-0 | 5-6 || 0-2 |0-1 | 18 |17:—:— | 4.0 Id. ©
2 830 || 62-2 | 55-4 | 6-8 ||0-3 | 0-1 | 20 || 16:—:—j| 6-0 Id., with a peristaltic motion. (0)
3 819 | 64-4 157-0 | 7-4 ||/0-2 |0-1 | 23 |16:—:— 2-5 Id. ; very hazy on H. and S. horizon. ©
t 803 || 63-7 | 56-4 | 7-3 |/0-1 |0-1 | 18 | 20:—:—|| 3-5 Id. ; id. O
) 792 61-5 | 56-5 | 5-0 |/0-1 |9-0 | 20 3-0 Id. ; id. ©
} 788 || 58-9 | 55-4 | 3-5 ||0-0 |0-0 | 16 2-5 || Patches of scud and cir.-cum.-str.; much atmospheric
f 791 || 55-3 | 53-0 | 2-3 |/0-2 |0-2 | 18 |22:—:—|| 4-0 || Seud; haze. [haze. ©
}} 791 | 51-2 |49-8 | 1-4 |/0-3 |0-1 | 16 1-0 ids rad: »)
y}} 794 | 50-9 | 49-6 | 1-3 | 0-0 |0-0 | 24 0-3 || Haze on horizon. d
Y|| 796 | 48-8 |48-0 | 9-8 | 0-0 |0-0 | 24 || —:18:—J| 2-0 || Cirro-cumulo-strati to S.; haze on horizon. y
785 || 46-0 | 45-7 | 9-3 || 0-1 | 0-0 | 18 0-5 || Haze on horizon. y
| | 783 || 42-9 |42-5 | 0-4 110-1 |0-0 | 18 2-5 || Cirro-cumulo-strati to S.; haze on horizon. >
:
i 43-2 | 42.9 | 0-3 ||0-0 10-0 | 17 6-5 Cir.-cum.-str., rad. from SW by W.; haze on hor.; mist on the ground;
43-5 |43-3 | 0-2 10-0 |0-0 | 22 9-0 || As before. [very hazy. }.
45.4 |45-1 | 0-3 |/0-0 | 0-0 | 20 7:5 Id.
44.0 | 43-8 | 0-2 |/0-0 |0-& | 22 2-0 || Clouds and haze round horizon.
44.3 | 44-1 | 0-2 |0-0 |0-0 | 22 9-8 || Cirro-cumulo-strati and cirro-strati.
44.7 | 44.3 |0-4 | 0-1 |0-0 | 22 || —: 18: —J|| 10-0 || Cirro-cumulo-strati.
46-0 | 45-6 | 0-4 |/0-:0 /0-0 | 24 || —:19:—]] 9-9 Id., or cirro-stratous scud ; slight fog on horizon.
47-8 |47-1 |9-7 || 0-0 | 0-0 —:18:—|} 10-0 || Cirro-stratous scud ; slight fog towards horizon.
49-6 |48-6 | 1-0 |/0-1 | 0-0 | 24 || —:18:—|} 10-0 lick id.
52-7 |51-1 | 1-6 ||0-0 |0-0 | 28 || —:18:—J]} 10-0 Id. ; id.
56-4 |54-1 | 2:3 | 0-0 | 0-0 10-0 Id.
59-1 | 56-1 | 3-0 || 0-0 | 0-0 0 | 18:—:—J] 10-0 || Scud and loose cum. ; dense cir.-str. scud and cir.-str.
60-1 | 56-8 | 3-3 | 0-0 | 0-0 | 16 || 18:—:— |) 10-0 || Patches of scud; dense mass of cir,-str. ; loose cum.-str.
61-3 |56-7 | 4-6 | 0-1 | 0-1 | 22 10-0 || As before. [to SE.
61-3 |57-2 | 4-1 || 0-1 | 0-1 | 18 || —:18:—J|| 10-0 |] Dense cirro-stratus and cirro-stratous scud.
61-0 | 56-8 | 4-2 || 0-1 | 0-0 | 16 || —:17:—|| 9-9 || Dense cir.-str.; cum.-str. to SE.; sky in patches to NW.
60-0 | 56-6 | 3-4 |/0-1 |0-0 | 20 10-0 || As before.
58-5 |55-7 | 2-8 |/0-0 |0-0 | 20 || —:17:—|| 10-0 Id.; sky in patches to NW.
56-7 |55-0.|1-7 ||0-1 | 0-0 | 24 10-0 Tele id.
55-3 |54-2 | 1-1 || 0-1 |0-0 | 20 10-0 || Cirro-cumulo-strati, with scud below.
54.7 |53-3 | 1-4 ||0-1 |0-0 | 24 10-0 Id.
53-4 |51-9 | 1-5 ||0-1 | --- | 31 9-8 || Dense cirro-cumulo-strati and cirro-strati.
53-8 151-3 | 2-5 | 0-1 | 0-1 | 18 10-0 Td.
54-6 |52-1 | 2-5 || 0-5 | 0-2 | 15 10-0 || Cirro-strati and scud ? radiating from SW.
f : ; Ly Le Sunday—Loose cumuli ; cirro-cumulo-strati and wooll
oie Bea LE 2D de: za) os5-* ‘ cirri; slight showers occasionally. ;
37-0 | 36-7 | 0-3 || 1-1 | 0-0 0-8 || Masses of scud to SE. »)
37-2 |36-9 | 0-3 || 0-0 | 0-0 | 22 0-2 || Clouds to E. »))
35-4 | 35-2 | 0-2 ||0-0 | 0-0 | 20 0:0 || Very clear. »»)
34-7 | 34-5 | 0-2 0-0. | 0-0 | 22 0-0 Id. y
33-4 | 33-2 |0-2 || 0-0 |0-0 | 22 0-2 || Cirro-stratus and haze on E. horizon. y
34.2 |34-0 |0-2 ||0-0 |0-0 | 22 0-5 || Cir.-str. and cirri; hoar frost; mist rising from the river.
th direction of the wind is indicated by the number of the point of the compass, reckoning N.=0,E.=8, 8.= 16, W.= 24. The
10tins of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
®t. 134115, Observation made at 114 8m.
j
232 HovurLy METEOROLOGICAL OBSERVATIONS, SEPTEMBER 14—17, 1845.
THERMOMETERS, WIND.
Go | Be ee elec ee ee ¢ Clouds and |
Se | saan 12 C.-8.: Ci, 3 . :
ree eae? Dry. | Wee. | Die. Carer in ace tn vin g Maciek. Species of Clouds and Meteorological Remarks.
14, |10™, saa
d. bh. in. ° ° ° |! Ibs. | Ibs. | pt. || pt. pt. pt. || 0-10.
14 19 || 29-205 || 35-5 | 35-3 |0-2 || 0-1 |0-0 | 20 0-8 | Linear and woolly cirri.
20|| 213 ||38-9 | 38-7 | 0-2 ||0-1 {0-1 | 20 | —:—:20] 1.0 Id. (0) [WSW. ; hag
21 219 || 44-3 | 43-7 | 0-6 || 0-1 {0-0 | 25 4-0 Id. ; radiating from ENE. ,
22 222 || 50-2 | 48-2 | 2-0 || 0-1 |0-1 | 22 4-0 || As before, with patches of scud to N. and cum. to
23 235 || 55-8 | 51-6 | 4-2 | 0-1 |0-1 | 20 | 24:—:22)) 4-0 || Loose cum. ; linear, curled, and woolly cir. ; po
15 0O 233 ||57-6 | 51-6 | 6-0 || 0-3 |0-1 | 23 | 22:—: — 7-0 || Loose cumuli; cirri as before. (2) [solar hal
1 229 || 58-7 | 52-4 | 6-3 3 |0-1 | 20 | 22:—:—]| 7-0 ice cumuli; cirro-strati; woolly ci
2 227 || 59-2 | 51-6 | 7-6 ||0-2 |0-1 | 30 || 22:—:— || 6-5 aes 1d id. 3 id.
3 227 || 58-6 | 51-6 | 7-0 | 0-1 |0-3 | 21 || 21:—:— || 8-2 id id.;- cirri.
4 230 || 58-7 | 51-8 | 6-9 | 0-7 |0-3 | 21 || 20:—:— 8-5 Id. Tb id. ; cirro-strati.
5 238 || 54-8 | 50-4 | 4-4 |/0-5 |0-1 | 24 || 20:23:—|| 9-0 || Seud; loose cirro-strati; cum.-str. , showers to N,
6 243 || 53-8 | 50-1 | 3-7 || 0-1 |0-0 | 20 | 21:—:—}] 7-0 || Id.; id. ; great piles of cumulo-stra
7 254 || 50-5 | 48-3 | 2-2 10-0 |0-0 | 20 | 20: —:— 4-0 || Scud; cirro-strati.
8 264 || 47-5 | 45-9 | 1-6 || 0-1 | 0-0 2 7-0 |\ Cirro-cumulo-strati.
9 265 || 48-6 | 46-9 | 1-7 ||0-0 |0-0 | 16 8-0 Id.
10 272 || 47-3 | 46-2 | 1-1 || 0-0 | 0-0 4 9-0 Id.
11 280 || 46-8 | 46-0 | 0-8 ||0-1 |0-0 | 17 || —:20:—|| 8-5 Id. ; cirro-strati.
12 286 ||48-3 | 47-4 | 0-9 ||0-1 |0-0 | 23 || —:20:— 6:5 Tat’; id.
13 || 29-291 ||45-7 | 45-1 |0-6 || 0-1 |0-0 | 17 1-5 || Cirro-cumulo-strati; cirro-strati.
14 293 || 42-5 | 42-3 | 0-2 || 0-1 |0-0 | 17 1-0 Id. to S.
15 294 |) 41-3 | 41-1 | 0-2 | 0-1 |0-0 | 18 0-2 || Thin cirri; cirro-strati to W.; mist on the grout
16 290 || 42-5 | 42-0 | 0-5 || 0-1 | 0-0 | 22 0-0 || Very clear. 1
17 303 || 42-8 | 42-3 |0-5 ||0-2 |0-1 | 24 0-2 || Streak of cirri on E. horizon. d [Chevi
18 307 || 42-0 | 41-4 | 0-6 || 0-2 |0-1 | 26 0-5 Td. 5 cirro-strati ; seud
19 319 || 42-0 | 41-0 | 1-0 ||0-0 |0-0 | 20 || 20: —: 26 1-0 || Scud to W.; woolly and mottled cirri. q
920 328 || 44-9 | 44-1 |0.8 | 0-2 |0-1 | 18 |} 20:—:— 2-5 || Loose scud to S.; patches of cirrus. © [quiel
21 335 ||48-9 | 47-4 | 1-5 ||0-3 |0-3 | 20 || 19:—: 26 1-2 || Loose scud on hor. ; flame-like cir. ; both strata m
92 340 || 51-3 | 49-0 | 2-3 10-3 |0-3 | 24 ||20:—:— 2-0 || Masses of scud and loose cum. ; cir.-str. near hor.
93 330 || 54-3 | 51-0 | 3-3 ||0-5 10-5 | 18 || 20: —:— 7-0 || As before.
16 0O 315 || 55-8 | 50-8 | 5-0 || 0-6 | 0-3 | 18 || 21:—:25 5-0 || Scud and loose cumuli; cirri and cirrous haze. ©
1 308 | 58-0 | 51-8 |6-2 || 0-5 |0-4 | 20 | 21:—:— 8-0 || As before; traces of a solar halo.
D) 294. || 58-5 | 52-2 |6-3 ||/0-9 |0-4 | 20 | 21:—:— 9-0 Id.
8} 278 || 60-0 | 53-0 |7-0 | 0-5 |0-2 | 21 |20:26:—|| 9-0 GES cirro-cumulo-strati.
4 264 1157-6 | 50-2 | 7-4 || 0-6 |0-2 | 20 ||18:24:—]] 9-8 Har: ; id.
5 250 || 58-0 | 51-3 | 6-7 || 0-3 |0-1 | 18 || —:24:—}} 9-7 || Cirro-cumulo-strati; loose cumuli to S.
6 242 | 56-3 | 50-4 | 5-9 || 0-1 | 0-0 —:24:—| 9-0 Id. ; woolly cir.-cum. ; cir.-str. ;
bi 246 || 52-0 | 48-7 | 3-3 ||0-0 |0-0 | 15 ||19:—-:—]} 9-8 || Cirro-stratous scud ; mass of cirro-stratus.
8 232 || 49-0 | 47-3 | 1-7 | 0-1 |0-0 | 31 || —:24:—J| 9-8 |) Cirro-cumulo-strati ; id.
9 222 || 48-6 | 47-0 | 1-6 0-0 |0-0 | 31 || —:24:—]] 9-8 Id. ; id.
10 217 || 46-7 | 45-7 |1-0 10-0 |0-0 | 24 |] —:24:— 9.9 Id.
11 203 ||45-9 | 45-2 |0-7 ||0-1 |0-0 | 16 || —:23:—|| 9-8 Id.
12 194 || 46-6 | 45-7 |0-9 || 0-0 |0-0 | 23 10-0 || Cirro-stratus scud and cirro-cumulo-strati.
13 || 29-184 || 46-9 | 46-1 |0-8 || 0-1 |0-0 | 20 10-0 || As before; shower®® since 122.
14 176 ||47-2 | 46-4 | 0-8 |}0-0 |0-0 | 18 10-0 || Clouds denser.
15 162 || 47-8 |46-9 | 0-9 || 0-0 |0-0 | 18 10-0 || Thick mass of cirro-stratous scud 2
16 148 || 48-3 | 47-7 | 0-6 || 0-0 | 0-0 4 10-0 Id. ; slight drizzle.
17 126 || 48-4 | 47-9 | 0-5 || 0-0 |0-0 3 10-0 Td. ; id.
18 113 | 48-8 | 48-3 | 0-5 ||0-0 |0-0 8 || 14:—:—]| 10-0 Id
19 116 || 49-3 | 48-9 | 0-4 || 0-1 | 0-0 6 || 15:—:—] 10-0 Id.
20 092 ||50-7 | 50-2 |0-5 || 0-1 | 0.0 4 ||—:19:—J| 9-9 |) Cirro-cumulo-strati and cirro-strati.
91 071 || 52-0 | 51-1 |0-9 || 0-1 |0-0 6 9-8 Id.
22, 040 || 54-0 | 52-8 | 1-2 || 0-1 |0-0 2 ||—:20:— 9-8 Id. \
93 || 29-009 || 54-7 | 53-2 | 1-5 10-1 |0-1 3 ||—:20:— 9-9 dee patches of seud
17. 0|| 28-983 || 54-4 | 53-8 |0-6 |10-1 |0-0 3 || 16:—:—|| 10-0 || Scud; dense cirro-strati; rain?
1 933 || 55-4 | 54-7 |0-7_]|0-1 |0-1 6 || 6:—:—]| 10-0 ilGhs id. ; raint
2 898 | 54-4 | 54-2 | 0-2 || 0-1 | 0-2 3 || 4:—:—T|! 10-0 || Loose scud; dense mass of cirro-stratus; rain
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, S.=16, W.= 24, Th
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. be
tt BaRo-
an || METER
ae, || at 32°.
CONIMABRW WHOODNHANA Ww!
[o'0)
ww
uw
6 499
534
8 568
g 594
10 612
Hovurty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 17—19, 1845. 233
THERMOMETERS.
WIND.
Clouds,
Maximum hie ae
: force in
Dry. | Wet. | Diff. “sun From Goth
a 2 Ibs. | lbs. | pt. pt. pt. pt.
55-7 |55-2 |0-5 || 0-2 | 0-2 3 6:20:—
56-6 |55-8 |0-8 |/0-1 |0-2 | 12 6: 20 :—
60-5 | 58-6 | 1-9 || 1-2 |0-8 | 18 |} 20:21: —
59-3 | 56-9 | 2-4 |) 1-1 |0-6 | 20 || 20: 21:18
57-7 | 55-5 | 2-2 0-8 |0-3 | 20 |} 20:—:—
56-1 | 54-6 | 1-5 || 0-5 |0-3 | 19
56:9 | 56-0 |0-9 || 0-7 | 0-2 | 19
56-7 | 56-2 |0-5 ||0-3 |0-1 | 19
56-6 | 56-1 | 0-5 || 0-3 |0-1 | 20
57-0 | 56-0 | 1-0 ||0-5 | 0-8 | 19
56:3 | 55-1 | 1-2 || 1-3 | 1-0 | 20
55-1 | 53-7 | 1-4 | 1-9 | 0-4 | 20 || 20:—:—
53-8 | 52-4 | 1-4 |/ 1-2 | 0-7 | 19 |} 20:—:—
53-6 | 51-8 | 1-8 || 1-1 | 1-8 | 18
51-6 | 50-3 | 1-3 || 0-9 | 0-3 | 18
52-2 | 50-7 | 1-5 ||0-5 |0-2 | 19 || 20:—:—
51-5 | 50-2 | 1-3 ||0-7 | 0-1 | 19 |} —: 20: —
52-6 | 50-8 | 1-8 |'0-6 |0-1 | 18 |} 19: 20:—
96-7 | 53-7 | 3-0 || 0-3 {0-2 | 16 ||} 18:22 :—
57-0 | 53-4 | 3-6 |/0-6 | 0-2 | 16 || 18;:—:—
60-0 | 55-8 | 4-2 || 0-4 |0-3 | 18 || 19:—:—
58-9 | 55-7 | 3-2 || 0-3 | 0-3 |14 v.|| 19: —:—
56:0 | 54-4 | 1-6 || 0-3 | 0-1 19:—:—
58-0 | 55-7 | 2-3 |/0-1 | 0-1 6 4/19); —= + ——
60-4 | 56-9 | 3-5 || 0-1 | 0-1 | 26 || 22: 22:—
58-4 | 55-7 | 2-7 || 0-1 |0-1 | 24 || 22:—:—
56-3 | 55-2 | 1-1 |} 0-1 |0-1 | 20 || 22: —:—
56-4 | 54-4 | 2-0 || 0-1 | 0-1 | 19 || 22: 22:—
54-8 | 53-4 | 1-4 || 0-0 |0-0 | 20 || 23:23 :—
53-4 |52-1 | 1-3 |/0-3 |0-1 | 22
52-8 | 51-2 | 1-6 |/0-3 | 0-2 | 20
52-4 | 50-8 | 1-6 |/0-3 | 0-1 | 22
52-3 | 50-3 | 2-0 || 0-2 | 0-2 | 20
51-0 | 49-2 | 1-8 || 0-3 | 0-3 | 20 || 22:—:—
50:5 | 48-7 | 1-8 || 0-2 | 0-2 | 18 || 22:— :—
50-7 | 48-8 | 1-9 || 0-2 | 0-2 | 20
50-2 |48-6 | 1-6 || 0-1 | 0-0 9
49.8 |48-8 | 1-0 || 0-1 | 0-0 2
48-8 |48-3 |0-5 || 0-5 | 1-7 0
47-7 | 46-7 | 1-0 || 1-7 |0-9 | 29 ||}30:—: —
46-5 | 45-1 | 1-4 || 2-0 | 1-3.| 29 || 30: —:—
47-0 | 45-4 | 1-6 || 1-6 |0-6 | 29 || 29 :—;—
49.2 | 46-1 | 3-1 || 1-4 | 0-7 | 28 || —:29:—
50:3 | 46:6 | 3-7 || 1-8 | 1-1 | 29 ||299: 28:—
53-1 | 47-6 | 5-5 11-8 | 1-5 | 28 ||29:28:—
54-4 | 48-0 16-4 || 1-5 |0-5 | 29 || 29 :—:—
54-5 | 47-6 |6-9 || 1-5 |0-2 | 28 |}29:—:—
57-1 | 49-0 | 8-1 ||0-7 | 0-8 | 29 || 29:—:—
56-1 |48-4 | 7-7 ||0-7 |0-4 | 28 || 29:—:—
56-5 | 48-0 | 8-5 |/0-4 |0-3 | 28 ||299:—:—
56-3 | 48-4 | 7-9 || 0-4 |0-4 | 30 || 28 :—:—
53-4 | 47-5 | 5-9 ||0-1 |0-1 | 28 || 98: —:—
49-3 | 46-0 |3-3 | 0-1 |0-0 | 28 || 28:27:—
50-0 | 47-0 | 3-0 || 0-1 | 0-1 0
49-0 | 45-4 | 3-6 || 0-1 |0-1 | 20
46:8 |43-8 |3-0 10-1 |0-1 | 23
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Loose misty seud; thick cir.-str. scud; both currents
Patches of loose scud ; thick seud. [moving rapidly.
Loose misty seud ; cirro-cumulo-strati and cirro-strati.
lice cir.-cum.-str. ; wo. cir. ; showers around.
liye TGees id. ; id.
Id. ; GbE id. »
Ida: 10 a5 showers”? }
Id.; cirre-strati; cirro-cumulo-strati.
Id. ; id. ; Tiel
Seud ; cirro-strati; cirro-cumulo-strati; drops of rain.
As before ; drops of rain from a thin hazy cloud.
Scud.
Scud and loose cumuli.
Id. ») [rain.
As before, with cir.-str. and cir. haze on hor. ; drops of
Cir.-str. scud ; piles of nimbi on hor. ; very black to SE.
Scud ; cirro-stratous scud ; cirri; cumuli on horizon.
Id.; cirro-cumulo-strati; cirro-strati. ©
IGF id. ; id.
Cirro-stratous scud ; loose scud on hor. ; cirro-strati.
Td. ; loose scud ; thick cirro-stratus.
Seud; cirro-stratous scud.
Cirro-stratous scud ; loose scud; thick cirro-stratus.
Seud ; cirro-cumulo-strati; showers occasionally.
Id.; cirro-stratous scud ; cumulo-strati to N.
drops of rain.
uYyY
Id. ; TORE Gh e rain”
Thick cirro-stratus and scud.
Id.
Id.
Id.
Id.
Scud and cirro-strati. )
ligh® cumulo-strati. )
Scud ; cirro-cumulo-strati. }
Id.
Id.
Id.; rain?
Id.; rain?
Td.
Loose scud ; dense homogeneous cirro-stratus.
Iles ides sky to N.
Mass of cirro-stratus and cirri; scud on horizon.
Masses of scud ; cirro-strati; cirro-cumulo-strati.
Masses of scud and loose cum. ; cir.-str., woolly cirri,
As before. 0) [and cirrous haze. ©
Id. (0) [a solar halo.©
Masses of scud and loose cum. ; linear cirri; portion of
Loose cumuli; patches of cirri.
dss id.
Id.
Id. ; cumulo-strati to S.; haze. ©
Id. ; id. ; cirro-strati.
Seud and cirro-strati.
Id. ; very dark clouds to E.
Scud and cirro-cumulo-strati. * }
Whe direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E.—8,8.=—16, W.=24, The
Titions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
MAG. AND MET. oBs. 1845.
3N
234
Gott BaRo-
Mean METER
Time at 32°
d h. in
19 11 || 29-638
12 645
13 || 29-659
14 671
15 674
16 670
17 662
18 664
19 672
20 667
21 662
22 657
23 641
20 O 623
1 600
2 581
3 555
4 535
5 515
6 504
if 482
8 470
9 440
10 412
11 379
12 353
231|| 29-240
21 13 || 29-222
14 238
15 262
16 279
17 308
18 329
19 360
20 380
21 420
92 436
23 466
22 0 487
1 517
2 ByPAll
3 565
4 594
5 625
6 661
7 686
8 700
9 733
10 754
11 Wide
1Z 790
13 || 29-803
14 822
15 841
16 _ 854
Hovurty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 19—22, 1845.
THERMOMETERS.
Dry. | Wet. | Diff.
41-3 | 40-4 | 0-9
42-3 | 40-8 | 1-5
38-8 | 38-3 | 0-5
37-7 | 37-3 | 0-4
35-2 | 34-8 | 0-4
34.2 | 34-0 | 0-2
33-6 | 33-1 | 0-5
36-8 | 36-4 | 0-4
49-0 | 45-5 | 3-5
48-7 | 44.0 |4-7
50-0 | 43-9 | 6-1
51-4 |44-2 | 7-2
48-9 |43-1 | 5-8
36-5 | 34-8
36-5 | 34-6
35-0 | 33-1
33-7 | 32-3
1-8
1:7
1-9
33-7 | 32-4 | 1-3
1-9
1-4
1:3
32-9 | 31-6
WIND.
Maximum
force in |Ryom
1 ako
Clouds,
Se. :C.-s. : Ci.,
moving
from
pt. pt. pt.
—:21:—
18:—:—
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Thin cirro-cumulo-stratus.
Thick cirro-cumulo-stratus.
Thick cirro-cumulo-stratus on hor. ; faint lunar co r.
lice id.
Id. ; id.
Td. to SW., and on E. hor.
Thincir.-cum.-str.and cir.,rad. from WNW.; lun.eo
Cir-cum.-str., thick to SW.; bright window of sky to]
Seud ; cir. of ; cir. toS.; cum. to E.; rainbow 18! 49
Tigose scud ; woolly cirri ; cumulo- strat to NE.
Woolly civ, cirro-strati, and cirrous haze.
Mass of cir.-str. ; cir. haze; patches of scud to S. ; faint solar ha
Loose cumuli; woolly cirri and cirrous haze. 1
Seud and loose cum. ; cir.-str.; cir. haze; woolly ¢
Thick cirrous mass ; loose cumuli; solar ‘hinds
Seud ; cirro-cumulo-strati ; cumuli.
Id.; thick mass of binroaieaaet
Id. ; id.
Id. ; id.
Cirro-stratous scud ; cirro-strati; cirrous haze.
Tides ids id.
Gee id. ; drops of rain.
Dark masses of scud and cirro-strati; id.
Id.
Id5.: id.
Scud and cirro-stratus ; a slight shower since 11!
Sunday—Overcast with loose cum. scud and cir,
\ str. ; showers ; continuous rain in the evening.
Dense mass of none and cirro-stratus. :
Id. ; raint
Id. ; rain”
Id. ‘
Idi; passing showe
Loose scud ; dense cirrous mass ; rain”?
Seud ; drops of rain.
Id.; rain?
Id.; mass of cirro-stratus ; drops of fine rain.
Loose seud ; cirro-cumulo-strati,
ighe id,
diss id.
Tao; id.
Thick scud and cum.; nimbus to N.; cir.-cum.-si
Loose cumuli and cumulo-strati; cirro-cumulo-strati
lids id.
des id.
Scud; loose cum. and cum.-str. ; nimbi to E. and S., falling in r
Cumulo-strati ; cirro-strati; cumuli.
Seud and cirro-strati on horizon.
Very clear; haze on S. horizon.
lige id.
A few patches of cirrous clouds on horizon.
Very clear.
Very clear.
Id.
Id. ; hoar-frost.
Tae id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, 8. = 16, W.= 2 The
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Sept. 194 16".
Sept. 214 19».
The clouds somewhat cymoid, and moving rather quickly.
Observation made at 19¢ 5m.
NEO
SOMO A WwW DH OM
446
430
397
375
361
350
327
Hovurty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 22—25, 1845.
THERMOMETERS.
Dry. | Wet.
50-5
52:3
47-9
49.3
Diff.
Maximum
WIND.
force in
10m,
From
Clouds,
Se. :C.-s. : Ci.,
moving
from
Sky
clouded.
235
Species of Clouds and Meteorological Remarks.
Belt of cirro-stratus to E.; hoar-frost. »)
Cirro-cumulo-stratus on N. and E. hor.; hoar-frost. )
de cum.-str. on HK. hor. ; hoar-frost on the
Cumulo-strati on EH. horizon. (0) [ground. ©
Cirro-cumulo-strati; cumulo-strati on EK. horizon. ©
ide iden cirro-strati. ©
Loose cumuli ; id. (=)
ays id. eo}
Td; cirro-strati. (2)
Icke id. (2)
ides id. (=)
dis id.; cirri to NE. ©
As before. © [atmospheric haze near hor. ©
Patches of cum. ; tufts of cirrilike tadpoles ; cir. and
Cirro-cumulo-stratus and cirrous haze on horizon.
Id.
Patches of cloud on E. horizon ?
Clear.
Id.
Id. »)
Clear )
Id. »)
Id. »)
One or two streaks of cirrus to NW. »)
Light fog. y
Fog to H.; cirro-strati and cirrous haze on E. hor. __))
Streaks of thin cirri, radiating from SSW. ; fog over the Tweed. ©
Thin cirri over much of the sky ; solar halo. (9)
Woolly cirri and cirrous haze; patch of scudtoS. ©
Scud; cirri, &c.; as before; halo. © [solar halo.
Seud on hor.; woolly & linear cir. & cir. haze thickening;
Scud and loose cum.; woolly cir. & cir. haze; solar halo.
iokie cirro-strati ; cirri.
dy: woolly, linear, and mottled cirri. ©
As before. @
Scud; dense mass of cirro-stratus.
Patches of scud ; dense mass of mottled cirro-stratus.
Thick muddy cirro-stratus, descending.
Dense mass of cirro-stratus.
Id.
Id.
Td.
Id.
Id.
Dense mass of cirro-stratus.
Seud ; cirro-stratus.
Il, = id.
Gl id.
Loose scud ; cirro-stratus and cirro-cumulo-strati.
lich § id.
Scud ; cirro-stratus; a slight shower at 22 20”.
IG ders drops of rain.
fe direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.= 8,8S.=16, W.= 24. ‘The
adons of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
236 Hovurty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 25—27, 1845.
THERMOMETERS.
Time. || at 32°. Dry. | Wet. | Diff.
10 366 || 44-7 | 43-4
12 361 || 48-4 | 46-5
13 || 29-354 ||45-7 | 44-6
14 353 || 42-0 | 41-3
15 341 || 43-4 | 42-5
16 329 || 44-1 | 43-0
17 348 || 40-7 | 40-2
18 356 || 38-8 | 38-6
19 380 || 40-4 | 40-2
20 384 || 45-2 | 44-0
21 395 || 47-6 | 46-0
22 409 || 50-0 | 47-4
23 408 || 53-2 | 49-0
26 0 414 || 52-5 | 49-4 | 3.1
2
3
4
5 470 || 53-2 | 47-4 |5.8
6
7
8
9 552 || 45-8 | 43-4 | 2.4
10 557 || 43-8 | 42-2 | 1.6
ee 553 || 44-2 | 42-3 | 1.9
12 547 ||44-3 | 42-6 | 1.7
13 || 29-531 || 41-9 | 41-0 |0.9
14 497 ||42-8 |41-9 | 0.9
15 477 |\46-0 | 44-6 | 1.4
16 451 ||46-8 | 45-2 | 1-6
17 418 || 48-4 | 46-5 | 1.9
18 388 || 49-3 | 46-6 | 2.7
19 365 ||49-4 | 46-9 | 2.5
20 322 ||49-9 | 48-0 | 1.9
21 278 || 51-1 | 49-1 | 2.0
22 245 ||53-7 | 52-2 11-5
23 197 || 55-8 | 54-0 |1-8
27 0 168 || 58-0 | 55-2 | 2-8
ONG DB WD
1)
So
co
on
~T
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.=8, S.=16, W.= 24,
motions of the three strata of clouds, Se. (scud), C
woe Clouds,
Maximum ae er
force in
eee From from
e s lbs. | Ibs. | pt pt. -pt. pt
29-320 || 56-0 | 52-0 | 4-0 || 1-8 | 1-6 | 19 | 19:—:—
316 || 58-6 | 51-9 |6-7 || 1-0 |1-0 | 20 || 22:—:—
SIdy|| O79 0-3) 7-6) \\l-2 0:6) | 2h 2 ee
310 || 57-7 | 50-2 | 7-5 1-1 |0-4 | 21 || 23 :—:—
. 1-1 | 0-6
343 || 52-7 | 47-3 | 5-4 |10-6 | 0-2 | 18 || —: 23:—
349 || 49-8 | 46-6 | 3-2 |0-4 | 0-4 | 20 || 22: —:—
350 | 48-0 | 45-2 |2-8 ||0-5 | 0-4 | 18
351 || 47-2 | 45-0 | 2.2 ||0-2 |0-2 | 18
1-3 ||0-2 | 0-2 | 17
1-6 || 0-3 | 0-1 | 20
1-9 | 0-7 |0-3 | 21
1-1 |}0-3 |0-1 | 20
0-7 0-1 |0-1 | 18
0-9 | 0-4 | 0-3 | 19
1-1 | 0-4 |0-5 | 18
0-5 || 0-4 |0-1 | 18
0-2 || 0-1 |0-0 | 18
0-2 || 0-1 | 0-2 | 18
1-2 | 0-2 | 0-1 | 19>) 280. ——
1-6 0:2 |} 0:1 | 20,22 -—=: —
2-6 0-2 |0-3 | 18 | 94:29:—
42 "083! O-d0 \ee2e bos ce 7
0-8 |} 0-2 | 20 || —: 23 -—
422 ||55-4 | 49-7 | 5-7 |/0-4 | 0-5 | 22 | 292: :—
422 || 55-5 | 49-7 |5-.8 09 40:3 260) —- 26, —
433 ||55-8 | 50-0 |5-8 | 1-0 | 1-3 | 26 || 26:—:—
456 ||53-6 | 48-0 |5-6 || 1-3 |0-5 | 26 || 25:—:—
0-9 |0-6 | 21
505 || 50-9 | 46-7 | 4-2 10-6 | 0-1 | 21 || —:27:—
528 ||47-4 | 44-4 |3-0 |/0-1 |0-1 | 21
544 ||46-7 | 43-7 13-0 10-3 | 0-4 | 21
0-3 |0-3 | 21
0:3 |0-3 | 21
0-4 | 0-2 | 20
0-2 |0-1 | 20
0-1 |0-0 | 14
0-1 | 0-1 | 19
0-2 |0-1 | 18
0-1 |0-1 | 18
0-8 |0-3 | 19
0-9 |0-7 | 19 .
Pe ed 9 1-20 96 > =
HS) ) Wall i] iS) eye
LSS Oe eo y= =
Wea 1-220") 19 ==
1-5 | 1-0 | 21 || 20:—:—
2-8 a-a | 20) || 21 s—— » —
170 |/58-8 | 56-3 | 2-5 | 2-3 |1-0 | 18 || 22:—:—
163 || 59-2 | 56-3 |2-9 | 1-9 | 1-0 | 20 || 23:—:—
166 || 60-6 | 52-0 |8-6 || 2-5 | 2-3 | 24
185 || 59-2 | 52-6 |6-6 || 3-2 | 3-4 | 21 | 93:—:—
50:6 | 6-5 ||4-3 | 2-2 | 21 94 -—: —
237 || 54-6 | 49-0 | 5-6 || 2-2 | 1-6 | 22 | 23:—:—
271 || 52-4 |49.0 | 3-4 111-4 |0-7 | 21
282 || 49-2 | 46-3 | 2-9 || 0-4 10-2 | 20
Sky
clouded.
Loose cumuli ; cumuli; cirro-strati; cirri.
Species of Clouds and Meteorological Remarks.
Scud and loose cumuli; cirro-strati.
fds id.
Cirro-cumulo-strati ; loose cumuli.
Seud; cirro-strati.
Scud and cirro-strati.
Id.
Id.
Id.
Seud ; rain!
Patches of cloud near horizon.
Cirro-cumulo-stratus to E.
Td.
dh faint aurora to N.
Td.
Id.
ie Be cirro-strati.
Cir.-cum.-str. ; cir.-str.; woolly cir.; patches of se
Patches of scud ; cirro-stratus and cirrous haze.
Seud ; id.
Seud and loose cumuli; cirro-strati; cirri.
Cirro-cumulo-strati ; cumuli; cirro-strati; cirri.
Seud and loose cumuli; cirro-strati; cirri.
Cirro-cumulo-strati ; cumulo-strati; cirro-strati.
Loose cumuli ; cumulo-strati on horizon.
Id: i; id.
IGE id.
Loose cirro-strati and cirri; hazy near horizon.
Patches of cirro-strati and linear cirri; hazy neai
Id.
Patches of cirro-strati.
Cirrous haze on W., horizon.
Thin cirrous haze over the sky.
Cirrous haze and cirro-strati.
Cirrous haze and cirro-strati.
Id.
Id.
Dense cirro-stratus.
Id.
Id.
Loose ragged scud ; mass of cirro-strati.
licive id.
Idi; id
iG id. ; rain! —
Gls id.
Td. 5 id.
Thin seud ; cirro-strati and cirri.
Seud ; id. ; passing shower
hd: id. ; ids; id.; haze.
Scud and loose cumuli.
Td.
Scud ; shower"?
Id.; and cirro-strati.
-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
HovurLty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 27—30, 1845.
THERMOMETERS. WIND.
Clouds,
| oe Massinaren Se. : C.-s.:Ci.,|/ Sky
i ae 1a ae aa _ Rc oes clouded. Species of Clouds and Meteorological Remarks.
i in. is Ss o lbs lbs. pt. pt. “pt. pt. 0—10.
N19 || 29-293 || 49-7 |46-7 |3-0 || 0-5 |0-1 | 18 | 0-2 || Faint auroral arch, altitude 7°.
0 315 || 49-8 | 46-8 | 3-0 | 0-5 |0-4 | 19 | 9-7 || Seud; auroral light to N. seen through the clouds.
1 300 || 48-6 |46-7 | 1-9 || 1-2 | 1-0 | 19 9-5 Id.
297 ||48-7 |46-0 | 2-7 || 1-7 |0-7 | 20 1-5 Id.
Ba) 29-364 || 52-8 | 47-3 | 5-5 || 2:3 | 2-2 | 20 | 23:—:—]| ......
3 || 29-468 || 44-6 | 42-5 | 2-1 || 3-2 10-8 | 20 1:5 |) Cirrous scud 2
4 474 || 43-3 | 41-8 | 1-5 || 1-2 |0-3 | 18 1-0 Id.
5 474 || 43-0 | 41-9 | 1-1 | 0-7 |0-3 | 19 1:5 Id. ; 155 30™, shower”?
6 || 475 || 42-4 | 41-6 |0-8 | 0-8 |0-3 | 20 1-0 Id.
479 || 42-1 | 40-9 | 1-2 ||0-3 |0-3 | 19 0-5 Td. )
i} 480 || 42-2 | 41-1 |1-1 0-3 |0-3 | 20 || 23:25:—|| 5-0 Smoky and cirro-stratous scud ; cirro-cumuli. y
9 491 || 42-4 | 41-3 | 1-1 | 0-3 |0-2 | 22 ||94:—:—|| 8.0 lids id. [bow.@
i) 485 || 45-2 | 43-9 |1-3 || 0-3 |0-3 | 22 || 94:—:—]| 8.0 Id. ; id. ; cir.-str.; rain-
il 488 || 47-3 | 45-8 | 1-5 || 0-9 |0-3 | 26 | 21:—:—|| 9-5 |! Scud; cirro-cumulo-strati ; cir.-str.; passing showers. Q
476 || 47-7 | 45-8 | 1-9 || 1-4 |0-3 | 22 ||92:—-:— || 8.0 ae; id. ; id. 8
3 464 | 51-4 | 48-0 | 3-4 | 1-2 | 1-5 | 18 || 22:24:—]| 7-0 Id. ; id. ; id. (0)
D 4954 || 52-4 | 48-8 | 3-6 | 1-7 |0-7 | 20 ||23:—:—|| 7-5 || Loose cumuli; cumulo-strati; cirro-strati. ©
| 440 |) 53-2 | 47-7 |5-5 || 2-2 | 1-1 | 19 || 23:—:—]| 5-0 |! Seud and loose cum. ; cum.-str. ; cir.-str.; cirri. ©
p 420 |\50-0 | 49-2 | 5-8 || 1-7 | 1-2 | 22 ||99:—:—]| 6.5 lick F id. ; id.; nimbitoS. ©
3 414 || 54-2 | 47-9 | 6-3 || 1-9 |0-8 | 20 || 22:—-:—]] 7-0 Id. ; id. 5 id. ©
400 | 53-5 | 47-8 |5-7 || 1-0 | 0-4 | 20 || 21:22:—|| 8-0 |] Loose scud; cirro-cumulo-strati ; cumulo-strati. (S)
5 388 || 49-0 | 46-0 | 3-0 || 1-1 |0-5 | 20 | —:22:—]) 9-5 |] Cirro-stratous scud; dense mass of cirro-stratus.
5 376 ||47-4 | 45-0 | 2-4 || 0-7 |0-4 | 20 || —:24:24]) 4-5 |] Cirro-cumuli; ribbed cirri; cirro-strati; cumulo-strati.
7 366 || 45-0 | 43-5 |1-5 |10-7 |0-3 | 20 1-5 || Cirrous and cirro-stratous seud, and nimbi on hor. ; cirro-
351 || 45-6 | 44-1 |1-5 || 0-4 10-2 | 20 8-8 || Scud and cirro-strati. [strati.
> 340 || 47-3 |45-4 |1-9 ||0-7 10-8 | 20 9-5 Hel 3 very dark to W.
De 322 || 46-9 | 45-3 |1-6 || 0-7 |0-4 | 19 9.9 Id.
1 304 || 46-8 | 45-2 | 1-6 ||0-5 |0-7 | 20 9-9 || Scud; slight showers.
2 i 284 || 45-8 | 45-0 |0-8 || 0-4 | 0-3 | 19 2-5 Id.; clouds cleared off rapidly ; occasional showers.
| 29-271 | 46-1 | 45-0 |1-1 | 0-5 |0-5 | 20 9-5 || Scud.
f) 277 ||47-6 | 45-8 | 1-8 | 0-8 |0.1 | 20 10-0 || Id.; shower!
5] 260 || 47-6 | 46-4 | 1-2 | 0.3 |0.3 | 21 9-8 |) Ta.
Ba 246 || 46-8 | 45-7 |1-1 ||0-7 |0-8 | 20 1-5 Id.
] 246 || 45-8 | 44-5 | 1-3 ||0-9 | 0-4 | 20 2-0 Id.; drops of rain.
By) 6-249 | 45-0 | 43-9 | 1-1 | 0-5 [0-3 | 19 | 24:—:—] 25 || Ia. [horizon. ©
j 266 || 43-2 | 42-5 |0-7 || 0-4 |0-1 | 20 || —:23:—J|] 3-0 || Loose cir.-cum. and cir.-str.; scud on Cheviot and N.
) 262 || 45-9 | 44-3 | 1-6 | 0-3 |0-3 | 20 || 23:—:23 1-5 || Loose cumuli and nimbi; woolly cirri. ©
1} 258 | 48-1 | 46.0 |2-1 |/0-9 |0-6 | 19 ||} 94:—:— 1-5 || Scud to N.; cumuli; woolly cirri to 8. ©
Zi 247 51-7 | 48-3 | 3-4 || 1-0 | 1-2 | 21 | 23:—:—] 5-0 || Scud and loose cum. ; cir.-cum.-str.; cir.-str.; wo. cir.
By | 241 ||53-3 | 48.3 | 5-0 | 1-8 | 1-6 | 22 |92:99-— 9-0 Thin scud; cir.-cum.-str. ; cirro-strati; cirri; cumuli; nimbi to S.Q
Dd, 244 |/52-8 | 49-0 | 3-8 | 2-7 |1-2 | 21 ||91:—:23] 9-5 || Scud; woolly and ribbed cirri; passing showers. rs)
227 ||48-2 | 46-2 |2-0 || 1-8 |0-8 | 21 |} 92:—-— 5-0 Id.; loose nimbi, heavy showers around ; id.
224 ||53-3 | 48-6 | 4-7 || 1-3 | 1-3 | 22 ||/23:—-:— || 2-0 |] Loose cumuli; cumulo-strati to E. Oo}
213 || 53-4 | 47-6 |5-8 || 2-3 10-7 | 21 || 93:—-:— 2-5 licks id. ; nimbi to W. (0)
215 | 49-9 |46-7 | 3-2 | 1-7 |0-4 | 24 | 92:_-: — | 9.0 || Scud; cumulo-strati to E.; rain falling to W.
Db 227 | 46-8 | 44-4 | 2.4 | 1-6 | 1-6 | 22 | 92:—-:—J 9.0 || Scud hanging in bags, with cirrous pendants ; shower?
Di 227 || 46.2 | 43-3 | 2.9 | 0-8 | 0-4 | 24 || 24:—:—]| 5.0 || Scud; nimbi and cumulo-strati on E. horizon.
T}| 237 ||44.0 |41-5 |2-5 1-5 |1-2 | 19 | 1-5 || Scud and nimbi.
Bi} 257 || 42-8 | 41-2 |1-6 || 0-8 |0-1 | 18 2-0 || Seud.
) | 279 || 44-6 |42.2 |2.4 |/0-9 | 1-5 | 20 10-0 || Id.; shower!—*
) | 289 |/41-1 |40-0 |1-1 || 2-5 |0-3 | 20 1-0 Td.
ie 296 || 40-4 | 39-4 |1-0 | 0-3 | 0-4 | 20 0-2 || Seud and cirro-strati on horizon.
, 296 ||42-4 |41-0 | 1-4 ||0-4°] 1-3 | 20 | Sle) Id.
42-5 |1-3 || 0-6 | 0-2 | 19 8-0 || Scud and cirro-strati on horizon.
330 || 46-0 | 44-0 | 2-0 ||0-3 10-3 | 20 9-0 hE rain?”
Sept. 272105, A few minutes after 101, bright streamers seen rising from NNW. and N. horizon.
Sept. 294 6b, Sheets of cirro-strati lying E. and W.; scud on Cheviot: small cumulo-strati to E.
Sept. 30214. Observation made at 1) 7m,
Sept. 3045. Beautiful and complete double rainbow, with supplementary bows.
{AG. AND MET. oBs. 1845.
238 HovurLty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 30—OcTOBER 2, 1845.
Gott. BARo-
Mean METER
Time. at 32°.
deh, in.
30 15 || 29-336
16 353
17 367
18 375
19 391
20 418
21 442
22 456
23 470
1 O 456
1 444
2 445
3 429
4 430
5 431
6 432
7 419
8 413
9 411
10 397
iit 389
12 388
13 || 29-400
14 405
15 408
16 413
17 413
18 405
19 414
20 424
21 434
22 446
23 453
2) 0 461
il 458
2 454
3 440
4 446
5 450
6 457
U 456
8 450
9 457
10 493
11 460
12 446
13 || 29-426
14 437
15 431
16 430
17 394
18 370
19 396
20 400
21 414
22 386
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, S.= 16, W.=24. The,
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
THERMOMETERS. WIND.
Maximum
Dry. | Wet. | Diff.|| force in
14,| 10™
© ° © Tbs. | Ibs
46:0 |43-7 | 2-3 ||0-9 | 0-4
45-2 |42-8 | 2-4 || 0-5 | 1-1
44-6 | 43-2 | 1-4 || 1-6 | 0-2
46-6 |44-0 } 2-6 || 0-8 | 0-5
46-5 }44-0 | 2-5 || 1-3 | 1-1
46:7 \45-0 | 1-7 ||0-8 | 0-1
49.9 | 47-4 |2-5 ||0-8 | 0-9
52-0 |48-7 | 3-3 || 1-0 | 1-0
52-0 |48-0 | 4-0 || 1-7 | 1-5
54-0 | 49-6 | 4-4 3-3 1-9
54-4 |48-3 | 6-1 || 2-6 | 2-2
54-3 | 48-6 | 5-7 || 3-5 | 2-0
54.7 | 49-4 | 5-3 || 3-2 | 3-0
54-0 | 49-2 | 4-8 || 2-4 | 2.3
52-8 |49-1 | 3-7 || 3-0 | 0-9
52-3 148-6 | 3-7 || 1-7 | 0-9
52-0 148-6 |3 4 || 1-2 | 0-6
51-5 | 48-4 | 3-1 || 1-6 | 1-2
51-0 | 48-0 | 3-0 || 1-6 | 1-1
50-8 | 47-8 | 3-0 || 1-8 | 1-4
51-0 |48-3 | 2-7 || 2-3 | 1-8
50-0 | 47-8 | 2-2 || 1-8 | 0-9
49-8 |47-7 | 2-1 || 1-8 | 1-2
50-8 | 48-4 | 2-4 || 1-2 | 0-6
50-0 | 47-0 | 3-0 |} 1-3 | 0-7
48-0 | 45-2 | 2-8 10-5 | 0-2
46-8 | 44-7 | 2-1 || 0-2 | 0-1
46-0 |44-3 | 1-7 || 0-1 | 0-0
46-8 |44-8 | 2-0 |/0-1 | 0-1
47-4 |45-3 | 2-1 |10-1 | 0-0
49-0 |46-9 | 2-1 ||0-1 | 0-1
52-2 | 49-4 | 2-8 |/0-1 | 0-1
54-2 | 50-2 | 4-0 |/ 0-1 | 0-0
53-2 |48-0 | 5-2 || 0-1 | 0-0
53-4 | 48-7 | 4-7 || 0-1 | 0-1
55-8 | 50-2 | 5-6 || 0-2 | 0-1
55-4 | 50-0 | 5-4 || 0-2 | 0-0
54-3 |49-7 | 4-6 || 0-1 | 6-0
52-8 | 49-4 | 3-4 || 0-1 | 0-1
50-4 | 48-1 | 2-3 || 0-0 | 0-0
48-8 | 46-7 | 2-1 || 0-0 | 0-0
49-0 | 46-4 | 2-6 ||0-1 | 0-0
48-1 | 46-2 | 1-9 || 0-1 | 0-0
47-0 |46-4 |0-6 ||0-1 | 0-0
46-3 |45-8 |0-5 || 0-0 | 0-0
45-4 | 44-8 |0-6 || 0-1 | 0-1
45-0 | 44-2 |0-8 || 0-1 | 0-0
45-3 | 44-3 | 1-0 || 0-3 | 0-1
44-7 |43-9 |0-8 || 0-5 | 0.4
44-8 |44-1 | 0-7 || 1-7 | 0-4
44-0 |43-5 | 0-5 || 1-1 | 0-9
44-9 |44-5 |0-4 || 1-6 | 1-2
45:5 | 44-9 | 0-6 || 1-4 | 0-6
45-7 |45-0 | 0-7 || 1-1 | 0-8
46-0 | 45-3 | 0-7 || 1-4 | 0-6
46-3 | 45-7 | 0-6 |.1-6 | 1-1
we
BWP awwhQ Do
Clouds,
Se. : C.-s. :Ci.,
moving
pt.
OAH
from
pt. pt.
aes
RIDA
i
Species of Clouds and Meteorological Remarks,
Scud and cirro-strati on horizon.
Id.
Id.
Smoky seud ; cirro-strati.
Scud; loose cumuli, and cirro-strati on horizon.
dS: id: id.
Id.; watery cirro-cumuli.
Id.; cirro-strati; thin cirro-cumuli.
Id.; loose cumuli; patches of cirri.
a
ids; id. § woolly cirri.
ike id. 5 idss cirrous haze. |
Hohe id. id.* id. :
Id. ; id. ; id. ; id. 5
Id. ; id. ; id.; id. A
Thick scud and loose cumuli; cirrous haze. |
Thick scud ; cirro-strati.
Td. f
tds; id), stars dim. "
Seud ; a1 be haze; stars dim. q
Id. ; id. ; id. ; id. 4
dis cirrous haze ? id. "
Id. ; id.; id. !
Dark mass of cirrous scud (?) to W. x
Id.
Seud? breaking to W.; shower lately.
Id.? sky to N., rather milky.
Id.? sky in zenith.
Cirro-cumulo-strati ; cirrous haze ?
Cirro-strati radiating from ENE. and WSW.
Id.
Cirro-strati ; cirro-cumulo-strati.
ies ad.; patches of seud.
Loose scud ; dense mass of cirro-strati. @ [ ir,
Woolly cir. rad. from WSW.; loose seud to N.;
As before ; flocks of swallows flying about.
Scud and loose cumuli; dense mass of cirro-strat
Cirro-cumulo-strati and cirro-strati; cumuli.
Scud ; sky covered with cirrous haze.
As before. {and moving slightly in various directi
Blotched mass of cirro-stratus with patches of scud forming
As before; flock of lapwings moving north at 6%
Id.? very dark.
Id.; rain in a few minutes.
Id.; rain!
a.
Id.
Seud ; rain!—?
Id.; continuous rain!®
Id.; rain?
Id.; rain?
HovurLy METEOROLOGICAL OBSERVATIONS, OCTOBER 2—6, 1845.
239
SE
THERMOMETERS, WIND.
Clouds,
_ | eral enim Se.:C.+8.:Ci.,|] Sky CT, OO Re SPER
" ee gg°, aed. act Rsee ate an, mae novi clouded. pecies oO ouds an eteorologica. emarks,
Pas Om.
h. in. Si © 2 Ibs. | lbs. pt. pt. pt. pt 0—10.
3 | 29-366 || 46-5 | 45-8 |0-7 || 1-7 |2-7 | 4 || 5:—:—|| 10-0 || Seud; drifting rain!
0 372 ||46-9 |46-3 |0-6 2-2 |1-4 |] 3 || 5:—:—| 10-0 Td); rain?
1 334 | 46-8 | 46-4 |0-4 || 1-6 |2-8 | 6 || 5:—:—j 10-0 || Id.;_ id.
2 312 | 46-9 | 46-3 |0-6 || 2-4 | 1-8 5 || 5:—:—| 10-0 | Id.; rain (Scotch mist)”?
3 291 ||47-0 |46-4 |0-6 2:3 /1-0] 5 10-0 Ids; rear
d 287 || 47-2 | 46-7 |0-5 || 1-5 | 0-7 5 || 5:—:—|| 10-0 Id.; rain?
209 | 48-0 | 47-3 |0-7 | 2-7 |2-3 | 5 | 6:—:—/ 10-0 || Id.; rain (Scotch mist)”
218 | 47-8 | 47-3 |0-5 | 3-1 |0-8; 4 || 6:—:—] 10-0 Id.; rain?-3
208 || 47-7 | 47-4 |0-3 0-9 |0-6 |} 3 10-0 dss Sraims
201 || 48-0 |47-7 |0-3 |/0-9 |0-7 | 2 10:0 ||Rain®?
200 || 48-2 | 47-7 |0-5 | 0-9 | 0-5 2 10-0 Id.
202 || 48-4 | 47-7 |0-7 || 0-8 | 0-8 2 10-0 Id.
218 || 48-3 | 47-4 | 0-9 || 1-0 | 0-6 2 10-0 || Scud.
234 | 47-8 |47-3 |0-5 || 1-0 |0-5 | 3 10-0 Id.; rain”
29-248 | 466 | 46-0 |0-6 || 1-6 | 1-1 3 10-0 || Scud ; rain®?
256 | 46-0 | 45.2 |0-8 1-3 |0-8 | 2 10-0 Id.
261 | 45-4 |44-7 |0-7 || 1-0 |0-5 2 10-0 || Id.
269 || 45-6 |44-6 | 1-0 | 0-6 | 0-3 2 9-0 Id.
281 | 45-4 |44-3 | 1-1 ||0-4 |0-4 2 8-0 Id.; stars dim; slight drizzle.
279 | 45-3 |44.2 |1-1 ||0-4 }0-8 | 2 || 2:24:— | 8-0 || Smoky scud ; cirro-cumulo-strati.
292 | 45-3 | 44-2 | 1-1 |}0-6 |0-1 3 || 2:—:—| 10-0 || Loose scud.
304 | 45-9 | 44-6 | 1-3 ||0-2 |0-1 3 32—+—|| 10-0 Id.; rain”? commencing.
320 | 46-0 | 44-8 | 1-2 || 0-2 |0-1 2 4:—:—|| 10-0 Id.; mass of cirro-stratus ; mist around,
323 || 44-9 | 44-4 |0-5 0-8 | 0-3 1) 4:—:—| 10-0 Id.; drizzling rain??
323 | 47-1 |46-3 |0-8 ||0-5 | 0-3 2 4:—:—| 10-0 Id.; dense homogeneous cir.-str. ; drops of rain.
321 || 48-2 | 46-2 | 2-0 | 0-5 | 0-5 3 || 4:—:—] 10-0 Id. ; id. ; id.
322 | 47-6 |45-7 | 1-9 || 0-9 | 0-4 2 || 3:—:— 10-0 ils ids id.
315 || 47-2 | 44-7 | 2-5 || 1-2 |0-8 1 3:—:—|| 10-0 Ihe id.
315 || 45-7 | 44-0 | 1-7 || 1-0 | 0-5 2 |) 3:—:—j]| 10-0 Id. ; Ide rain!
316 || 45-0 | 43-5 | 1-5 |0-7 |0-3 | 2 10-0 ele id. ; id.
328 | 43-9 | 42-9 | 1-0 || 0-5 |0-3 2 10-0 Tde\ id. ; id.
336 || 43-7 |43-0 | 0-7 || 0-2 |0-1 2 || 2:—-:—|| 10-0 || Scud; homogeneous mass ; rain?
344 || 43-0 | 42-0 | 1-0 ||0-3 |0-2 | O 10-0 leks id. ; id.
359 | 42-3 {41-0 | 1-3 |}0-8 |0-2 | 2 10-0 || Id.; id.
374 | 42-0 | 41-2 |0-8 ||0-1 |0-1 | 28 10-0 ides id.
382 || 42-5 | 41-0 |1-5 || 0-1 | 0-2 | 30 8-5 Id.; clouds broken.
401 || 42-0 | 39-7 | 2-3 | 0-3 | 0-2 | 31 9-0 || Thin cirro-strati.
| 422 || 41-3 | 39-0 | 2-3 || 0-2 |0-1 | 30 8-5 Id.
Ba) 29-663 | 44-0 | 39-9 | 4-1 |/0-4 |0-2 | 20 || fs wees Sunday—generally clear ; a few loose cumuli.
29-726 || 32-3 |32-2 |0-1 |/0-3 | 0-0 | 24 0-3 || Patches of thin clouds.
. 718 || 32-1 |32-1 | --- ||0-0 |0-0 | 22 0-3 Id. ; stars rather dim.
: 706 | 31-0 | 31-4 0-0 | 0-0 0-3 || A few clouds near the horizon.
704 || 29-0 | 29.4 0:0 |0-0 | 22 0-5 Td.
698 || 29-3 | 29-6 0-0 |0-0 | 16 0-3 Id.
690 | 28-3 | 28-5 --- 110-0 | 0-0 20 0-8 Masses of scud to SW. [the valleys.
698 || 28-7 | 28-5 |0-2 ||0-0 |0-0 | 22 || —: —: 20 3-0 Stripes of woolly cir., lying E. & W.; cir.-str. on S. & N.hor.; fog in
702 || 30-8 | 30-5 |0-3 ||0-0 |0-0 | 20 || —:—:20] 5-0 || Nearly as before. 0)
700 | 33-0 | 31-7 | 1-3 ||0-1 |0-1 | 20 4-0 || Woolly cirri; cirro-strati and patches of scud to N. ©
688 || 37-3 | 36-7 | 0-6 ||0-1 | 0-1 0 2-0 Id. ©
676 || 43-7 | 42-0 | 1-7 ||0-1 | 0-1 6 1-0 Id. and haze round horizon. ©
665 || 49-3 | 45-4 |3-9 ||0-3 |0-3 | 15 || 16:—:20)) 2-0 || Patches of cumuli; woolly cirri. ©
645 || 51-8 |46-7 |5-1 |/0-3 |0-2 | 15 || 15:—:—] 4-0 || Loose cumuli; id. 0)
631 || 53-6 | 47-8 |5-8 ||0-4 |0-3 | 15 |) 15:—:— 4:5 Id.; id. ©
606 | 52-4 | 46-6 | 5-8 ||0-5 | 0-3 —:—:18]) 5-5 || Woolly cirri; loose cumuli. ©
596 || 49-7 | 44-5 | 5-2 ||0-3 |0-3 | 15 || 15:18:18] 8-0 || Cum.; cir.-cum.; woolly cir. thickening into cir.-str. ©
he direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, H.=8,8S.=16, W.=24. The
Mliions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Swallows seen to-day in considerable numbers, for the last time.
Portion of a halo lately ; parhelion at 4" 30™.
240 HovurLy METEOROLOGICAL OBSERVATIONS, OCTOBER 6—8, 1845.
: THERMOMETERS. WIND. Glouds
Gott: || BAEC Se.: C.-8. :Ci,|| Sk 3
Mean || METER Maximum ates lain B A Species of Clouds and Meteorological Remarks
Time. |] at 32°. || Dry. | Wet. | Ditt.| forcein |From) "puns
1h, | 102.
d. h. in. S 2 e lbs. | Ibs pt. pt. pt. pt. 0—10.
6 5|| 29-587 | 48-5 | 44-4 |4-1 | 0-2 |0-1 | 14 |} —:18:18]) 9-5 | Thick woolly cirri; cirro-strati and cirrous haze
6 592 || 46-7 | 43-4 | 3-3 || 0-2 |0-1 | 12 || 14:—:—| 10-0 || Seud; dense cirro-stratus and haze.
7 587 || 46-0 | 42-7 | 3-3 ||0-1 | 0-1 8 | 10-0 || Dense cirro-stratus and seud. j
83 579 || 44-4 | 42-1 | 2-3 ||/0-1 |0-0 | 11 | 10-0 Id.
9 565 || 44-0 | 42-0 | 2-0 ||0-1 |0-1 4 10-0 Id.
10 550 || 44-6 | 42-5 | 2-1 ||0-1 |0-0 2 | 10-0 | Td.
11 543 || 44-4 | 42-8 | 1-6 || 0-0 | 0.0 ) 10-0 | Td.
12 527 ||44-5 | 43-0 | 1-5 || 0-1 |0-0 6 | 10-0 |, Id. rain!
13 || 29-506 || 44-0 | 43-4 |0-6 |/0-1 |0-:0 | 2 10:0 | Dense cirro-stratus and seud; rain”?
14 472 ||44-1 | 43-5 |0-6 | 0-1 | 0-1 2 10-0 Td rain?
15 445 || 44-0 | 43-4 |0-6 ||/0-2 |0-1 2 | 10-0 idee rain?”
16 406 || 44-3 | 43-4 |0-9 0-2 |0-2 | 4 10-0 Id. ; rain!
17|| 383 | 44-1 | 43-7 |0-4 ||0-2 |0-2 | 2° 10-0 | Scud; slight drizzle.
18 355 || 45-0 | 44-3 |0-7 || 0-2 | 0:3 2" 10-0 id: ; id.
ig) 324 || 45-4 | 44-7 |0-7 ||0-4 |0-3 | 2 10-0 | Id.; drops of rain.
20 311 || 45-9 | 45-0 | 0-9 |/0-4 |0-2 | 2 |) 4:—-:—]| 10-0 || Loose seud ; drizzling rain®®
21 291 || 46-0 | 45-0 | 1-0 || 0-5 | 0-3 2 || 3:—:—] 10-0 Id.
22 260 || 46-8 | 45-5 | 1-3 || 0-9 | 0-4 2 A ||) 10:0 Id. ; dense mass of cirro-stratus.
23 238 || 49-1 | 47-1 | 2-0 || 0-5 | 0-1 1 3 —- ——}, 10-0 des id.
vf 213 || 49-0 | 47-5 | 1-5 ||0-8 |0-5 | O 1:—:—|| 10-0 de id.
1 183 | 51-0 | 48-7 | 2-3 || 0-8 |0-7 | 31 0:14:—J]} 10-0 || Send; cirro-strati; cirro-cumulo-strati.
2 160 || 49-2 | 47-4 | 1-8 || 1-0 |0-6 | 31 |31:—:—J]| 10-0 |) Id.; drizzling rain”?
3 146 || 48-1 | 46-3 |1-8 || 0-8 |0-3 | 31 10-0 Id.
4 135 || 47-7 | 45-9 | 1-8 || 0-5 3 | 28 | 27:—:—|| 10-0 Id.
5 125 || 47-4 | 45-2 | 2-2 | 0-4 |0-2 | 26 |27:—:—]] 10-0 Id.
6 109 47-1 | 44-4 | 2-7 ||0-7 |0-2 | 22 || 27:—:—]| 9-8 Id.; cirro-strati.
7 112 || 47-2 | 44.0 | 3-2 ||0-4 |0-5 | 21 | 9-9 ide; id.
8 099 || 46-7 | 43-8 | 2-9 |/0-3 | 0-2 | 20 | 10-0 id? id.
g) 097 || 46-2 | 43-7 | 2-5 ||0-2 |0-2 | 19 10-0 TIGRE id.
10 100 || 45-4 | 42.7 |2-7 |10-3 |0-2 | 18 | 7-02} Id.; ads: stars dim.
11 103 || 44-4 | 42-4 | 2-0 ||0-4 |0-1 | 20 | 9-8 || Thin Gm acatt the stars seen dimly in some pl
12 107 || 44-7 | 42-9 | 1-8 ||0-3 | 0-7 | 19 | 10-0 || Cirro-strati @
13 || 29-110 || 44-7 | 42-8 | 1-9 ||0-4 |0-4 | 19 | 10-0 || Cirro-strati ?
14 112 | 44-0 | 42-3 |1-7 ||0-4 |0-4 | 19 | 10-0 Td.
15 116 {42-9 | 41-5 | 1-4 |/0-3 [0-4 | 19 | 7-5 Td.
16 126 || 42-6 | 41-0 | 1-6 ||0-4 |0-1 | 20 | 7-02 Td. cirrous haze ; stars dim.
17 135 || 41-9 | 40-6 |1-3 ||0-3 |0-1 | 20 | 9-0 lice: id. ; id.
18 146 || 41-2 | 40-0 | 1-2 || 0-2 |0-0 | 24 | 9-0 Id. ; ids id.
19 157 || 39-7 | 39-0 |0-7 ||0-1 |0-1 | 24 | 4-0 Id; id.
20 158 || 39-7 | 39-3 |0-4 ||0-1 |0-0 | 16 8-5 Id. woolly cirri; cirro-cumulo-strati.
21 161 || 42-3 | 41-5 |0-8 || 0-0 |0-0 | 12 |—:18:—J]| 10-0 || Thick cirro-stratus; small cumulo-strati and haze
22 164 || 45-8 |44-3 | 1-5 |10-0 |0-0 | 10 |—:18:— || 9-9 || Cirro-cumulo-strati; cirro-strati.
23 158 || 47-4 | 45-4 | 2-0 || 0-0 | 0-1 4 |—:18:—] 99 | Id.
8 0 149 || 50-0 | 47-3 | 2-7 ||0-1 |0-0 | 8 |—:18:—]| 80 | Id.
1 127 || 52-4 | 48-3 |4-1 {0-1 |0-2 | 14 |14:—:13]) 5-0 | Loose cum.; woolly and mottled cirri; cir.-str.; |
2 1 13 53-8 48-6 5-2 0-5 0-3 1} 14 —— 4-0 | Loose cum,; woolly and mottled cir.; cir.-str.; cum.; cum.-str.; dense haze
3 103 || 52-2 | 47-8 | 4-4 ||0-3 |0-2 | 12 |18:—:—| 4-5 || Seud and loose cum.; cum.-str. and haze round ]
4 084 || 53-3 | 48-3 | 5-0 ||0-7 |0-2 | 12 2-5 || Woolly and linear cirri ; id.
5 O47 | ole3) WA7=2) 4-1 1,057. 022 | 12 =— = 17, 3-0 || Woolly and linear cir.; cum.-str. and haze round hor. ; pat. of
6 069 ||48-0 | 45-4 |2-6 || 0-4 |0-2 | 10 | —:14:— || 7-5 | Cir.-str. ; cir.-cum. ; cir.; cir. haze; seud on
7 061 || 45-3 | 43-9 |1-4 10-1 |0-0 8 2.5 | Cirro-strati; cirri. ») [atmospheric }
8 048 || 47-0 | 45-0 | 2-0 ||0-8 |0-7 | 10 5-0 | Id. ; id.
9 044 || 46-9 | 44-6 | 2-3 ||0-4 |0-3 | 12 9-0 | id: ; id.
10 || 29-009 || 47-8 | 45-0 | 2-8 ||0-6 |0-9 | 11 8-0 | Td. ; id.
11 || 28-984 | 49-6 | 46-8 | 2-8 || 1-1 |0-5 | 11 |12:—:— || 9-9 | Scud; cirro-stratus and haze.
12 || 28-966 || 50-6 | 48-0 | 2-6 ||1-4 11-1 | 11 10-0 ie Be id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, 8S. = 16, W.= 24,
motions of the three strata of clouds, Sc. (scud), C
8. (cirro-stratus), and Ci. (cirrus), are indicated 3 ina enlae manner.
HovurLy METEOROLOGICAL OBSERVATIONS, OCTOBER 8—10, 1845.
241
THERMOMETERS. WIND.
a Bano- Maximum
no || METER :
», || at 32°. || Dry. | Wet. | Dift.|| force in | From
1b, |10™,
° 2 lbs. lbs. pt.
49-7 |48-0 | 1-7 ||0-8 |0-3 | 12
49-4 | 47-6 |1-8 || 0-4 |0-2 | 12
48-2 | 46-6 | 1-6 || 0-7 |0-2 | 14
48-1 |46-3 |1-8 ||0-7 |0-7 | 14
46-9 | 45-7 | 1-2 || 1-3 |0-1 | 19
43-3 | 42-6 |0-7 || 0-1 |0-0 | 12
43-0 |42-0 | 1-0 || 0-1 | 0-0 | 26
43-6 | 42-3 |1-3 | 0-1 |0-0 | 20
43-2 | 42-6 |0-6 || 0-1 | 0-0
46-4 | 44.0 | 2-4 || 0-1 | 0-0 1
3 49-6 | 47-0 | 2-6 ||0-1 |0-1 | 15
0 51-3 | 47-9 | 3-4 || 0-0 | 0-0
1 52-0 | 48-2 | 3-8 || 0-1 |0-1 | 20
2 54:8 |48-3 |6-5 ||0-1 |0-1 | 19
3 53-8 | 47-8 |6-0 ||0-1 |0-1 | 21
4 52-8 | 47-8 | 5-0 || 0-2 |0-1 | 18
5 49-6 |45-7 |3-9 ||0-1 |0-0 | 18
6 44.0 | 42-3 | 1-7 ||0-0 |0-0 | 20
iF; 40-0 | 39-0 | 1-0 ||0-0 |0-0 | 22
8 39-9 |39-1 {0-8 ||0-0 | 0-0 | 18
9 39-7 | 39-1 |0-6 ||0-0 | 0-0 | 28
0 37-5 |37-0 |0-5 ||0-0 |0-0 | 20
1 40-0 | 39-7 |0-3 ||0-1 |0-1 | 18
12 139 || 39-9 | 39-6 | 0-3 || 0-0 | 0-0
13 || 29-154 || 41-3 | 40-7 |0-6 || 0-0 | 0-0
4 152 || 42-0 | 41-7 | 0-3 || 0-0 | 0-0
\5 139 || 42-8 | 42-4 |0-4 || 0-0 | 0-0
6 135 || 42-9 | 42-7 |0-2 || 0-0 |0-0 4
114 || 42-5 | 42-1 |0-4 ||0-0 | 0-0 | 26
105 || 42-0 | 41-6 | 0-4 || 0-0 | 0-0 6
092 || 42-2 | 41-6 |0-6 || 0-0 | 0-0 | 26
087 || 42-2 |41-7 |0-5 || 0-0 |0-0 | 20
090 || 42-3 | 41-9 |0-4 ||0-1 | 0-1 | 20
091 || 44-3 | 43-8 |0-5 || 0-1 |0-0 | 22
088 || 48-0 | 46-4 | 1-6 || 0:0 | 0-0 2
084 || 48-7 |46-7 | 2-0 ||0-1 | 0-0 | 20
084 || 53-0 | 49-9 |3-1 ||0-0 |0-0 | 16
090 || 52-0 | 47-8 |4.2 ||0-4 |0-5 | 16
101 || 51-7 | 47-0 |4-7 || 0-6 |0-1 | 15
121 || 48-0 | 46-0 |2-0 ||/0-5 |0-1 | 16
120 || 48-0 | 46-3 | 1-7 ||0-2 |0-1 | 13
128 || 47-8 |46-0 | 1-8 ||0-2 |0-2 | 14
137 || 47-0 | 45-2 | 1-8 ||0-4 10-2 | 15
147 || 46-3 | 44-7 | 1-6 ||0-2 |0-2 | 15
152 ||43-5 | 42-4 | 1-1 10-2 |0-1 | 14
167 || 42-8 | 41-8 | 1-0 ||0-1 |0-1 | 16
174 || 41-6 | 40-6 |1-0 || 0-1 |0-1 | 15
169 || 41-9 | 40-8 | 1-1 || 0-1 | 0-0 4
29-159 || 41-4 | 40-4 | 1-0 || 0-1 | 0-0 2
154 || 43-3 | 42-0 | 1-3 || 0-3 | 0-1 8
148 || 44-7 | 43-3 |1-4 ||0-1 |0-1 | 12
141 || 46-0 | 44-0 |2-0 || 0-1 |0-1 | 10
149 || 46-8 |55-0 | 1-8 ||0-3 | 0-3 | 15
152 || 45-6 | 44-6 |1-0 ||0-7 |0-3 | 12
159 || 44-9 | 43-9 | 1-0 || 0-4 |0-3 | 12
180 || 45-3 |43-7 | 1-6 ||0-3 |0-1 | 18
Clouds,
Sc. : C.-s.: Ci.,
moving
from
pt. pt. pt.
2):
Ppl 2t:
6
Salele:
ee
—:20:—
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Dark ; a slight shower lately.
Id.
.3 rain%—10
Id.
Scud and cirro-stratus.
Seud, cirro-strati, and cirrous haze.
Scud on §, horizon ; cirro-strati; cirrous haze.
Idi}
As before.
Id.
cir.-cum.-str. ; cirro-stratus rad.from SE. ;
[eir. haze; sky to SSW.
{haze; solar halo. (s)
Scud and loose cum. on S, hor.; thin cir.-str., woolly cirri, and cir.
As before; sky to S.
Loose cumuli; cumuli; cirro-strati; cirri.
Id. ; 10 BS id.
Id.; id. ; id.
licks id.
Cirro-cumulo-strati; woolly cirri.
Woolly cirri and cirrous haze.
Cirro-strati ; woolly cirri; cirrous haze.
Cirro-cumuli.
Cirro-cumulo-strati.
Patches of cirro-cumulo-strati ; woolly cirri.
Scud and cirrous mass.
Id.
Scud and cirrous mass; rain!
Seud ; rain!
idee ide
Id.; rain
Id.; rain!
Id.; id.
Dense mass of cirro-stratus ; rain! ?
Continuous rain!—?
Scud ; cirro-stratous mass; sky to SSW ; rain?
Loose seud ; cirro-strati; cirro-cumulo-strati.
YY YY OOO00O0O
Patches of seud ; woolly cir.-str., moving very slowly.©
Scud and loose cumuli; woolly cirri.
Id.
Id.
Id. ; cirro-strati.
Thick scud and cirro-stratus ; slight rain lately.
Id. ; id.
Id.
Id.
Scud and cirro-strati.
Cirro-cumulo-strati and cirro-strati; cirri.
Id. ; id.
Sheets of woolly cirri and cirro-strati.
Mass of cirro-stratus.
Mass of cirro-stratus ; a few stars dimly visible.
rain! commenced.
continuous rain!”
Cirro-stratous scud ; mass of cirro-stratus.
wYyyy
jhe direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, KE. = 8, 8S. = 16, W. = 24.
nions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Observation made at 32 13m,
det. 104 3h,
The
MAG. AND MET, oBs. 1845.
242 Hourty METEOROLOGICAL OBSERVATIONS, OcTOBER 10—14, 1845.
THERMOMETERS. WIND.
Clouds
Bott. .|| BeEo- : Se.: C.-s.: Ci, || Sky
Mean || METER Maximum eens ’ laeuden. Species of Clouds and Meteorological Remarks,
Time. || at 32°. | Dry. | Wet. | Diff. force in |Fyom pipes
14, | 10™.
ds, Ds in. ¢ ? ° Ibs. | Ibs pt. pt. pt. pt. 0—10.
10 21 || 29-202 || 45-2 | 43-7 |1-5 || 0-8 |0-2 | 14 || —:18:—J} 9-9 || Dense cirro-stratus.
22 221 ||47-0 |44-8 | 2-2 | 0-4 | 0-3 | 14 10-0 Td.
23 241 || 48-8 |46-2 |2-6 ||0-2 |0-2 | 14 |/—:16:—| 9-8 Id.
11 0 260 || 50-9 |47-8 |3-1 ||0-2 |0-2 | 14 || 18:16:—J| 8-0 || Loose seud; cirro-cumulo-strati.
1 273 || 51-2 | 47-8 | 3-4 ||0-4 |0-3 | 17 || 18:—:—|| 9-9 || Smoky scud; id.
) 288 || 51-0 | 48-1 | 2-9 || 0-3 |0-0 | 16 || —:20:—1|| 9-5 || Cirro-stratous scud; cirro-strati; loose camuli,
3 307 || 53-3 | 49-8 |3-5 ||0-1 |0-1 | 16 || —:21:— || 8-8 IGS id. ; id.
4. 326 || 52-2 |48-0 | 4-2 ||0-2 | 0-1 | 18 || 23:—:—| 9-0 || Seud; cirro-cumulo-strati ; cirro-strati.
5) 352 || 51:0 | 47-2 | 3-8 || 0-1 | 0-1 | 20 2-5 || Id.; ides id. _—_— round horiz
6 389 ||49-5 | 45-5 |4-0 |/0-1 | 0-1 | 21 || 23:24:—| 9-5 || Id.; (6 eae id.
oi 409 || 46-8 | 44-7 |2-1 | 0-2 | 0-0 4 9-0 || Cirro-cumulo-strati.
8 432 || 45-0 | 43-6 |1-4 || 0-1 |0-1 | 28 | 0-5 Id. on horizon.
9 454 | 40-2 | 39-8 |0-4 ||0-1 | 0-1 | 20 | 0-2 Id.
10 469 | 39-9 |39-7 |0-2 ||0-1 |0-1 | 20 0-5 Id.
11 490 || 38-5 | 38-2 |0-3 || 0-1 | 0-0 | 20 | 7-0 Gee cirro-strati.
12 514 | 40-2 | 40-0 | 0-2 ||0-0 | 0-0 | 18 9-9 || Scud and cirro-stratus.
12 03) 29-775 | 55-5 |49.5 |6-0 0-4 |0.2[ 23) S|] ee \ ies reheat epar= mar a
13 || 29-898 || 42-3 |41-0 | 1-3 || 0-7 | 0-1 8 10-0 || Dense cirrous mass.
14 892 || 45-8 | 43-2 |2-6 ||0-2 | 0-2 | 16 10-0 Id.
15 896 | 46-2 | 43-7 | 2-5 ||0-2 |0-1 | 24 10-0 Tdkys rain’?
16 893 || 46-4 | 44-0 | 2-4 || 0-1 | 0-1 9 10-0 Id. ; id,
17 887 || 45-6 | 44-4 | 1-2 || 0-1 | 0-0 10-0 kets rain”?
18 883 || 46-5 | 45-2 |1-3 || 0-2 | 0-1 | 17 10-0 1s be rain!”
19 874 || 47-0 |46-0 | 1-0 || 0-4 | 0-1 | 16 10-0 || Thick cirro-stratus and seud ; rain”®
20 878 | 47-8 | 46-8 |1-0 || 0-7 | 0-3 | 17 || —:20:—)) 10-0 Tdig id.
21 886 || 49-1 |48-1 |1-0 || 0-4 | 0-3 | 17 || 17:19:—) 10-0 || Loose seud; cirro-stratous scud ; cirro-strati;
22 884 || 50-5 | 49-4 | 1-1 || 0-8 | 0-2 | 17 || 18:—:—/]] 10-0 || Seud; dense cirro-stratus.
23 879 || 52-6 |50-9 | 1-7 || 1-1 |0-8 | 16 || 16:19:—|| 10-0 || Id.; id.
13 0 878 | 55-4 | 53.0 | 2-4 || 1-0 | 1-3 | 18 || 18:—:—|] 10-0 | Id.; id.
1 880 || 56-2 | 53-3 | 2-9 || 2-8 |1-0 | 17 || 18:—:—] 10-0 || Id.; id.
D) 901 | 56-5 | 53-8 |2-7 || 1-8 | 0-5 | 18 || 18:—:—| 10-0 als id.
3 895 | 56-7 | 54-2 12-5 ||0-5 |0-4 | 18 || 19:—:— |] 10.0 Ids id.
4 878 |57-9 |54-9 | 3.0 | 0-7 | 0-7 | 20 || 19:—:—]| 10-0 || Id.; id.
5 889 || 57-7 | 54-8 | 2-9 | 0-9 | 0-7 | 18 | 19: 23:—]| 9.9 || Id.; cirro-cumulo-strati ; cirro-strati.
6 902 || 57-7 | 54-4 |3-3 || 1-1 | 1-0 | 18 | 19: —:— 9-9 || Id.; id. ; id.; clouds tinged
7 913 || 57-3 | 53-8 |3-5 || 1-5 | 0-7 | 18 || 9-8 || Id.; id. ; id. r
8 941 ||57-4 | 53-9 | 3-5 || 0-8 | 0-5 | 20 10-0 || Id.; id.
9 960 || 56-8 | 53-8 | 3-0 || 0-3 | 0-2 | 18 | 10-0 || Dense mass of cirro-stratus.
10 964 | 56-1 | 53-4 |2-7 || 0-2 | 0-1 | 19 10-0 Id.
11 972 || 56-4 | 53-4 | 3-0 | 0-4 | 0-4 | 18 | | 10-0 Id.
12 983 | 56-3 |53-3 |3-0 || 1-1 |0-5 | 18 | 10-0 Id.
13 | 29-987 | 55-5 | 53-2 | 2-3 | 0-7 | 0-8 | 18 || | 10-0 | Dense mass of cirro-stratus ; a few drops of very 1
14 || 30-001 | 54-6 | 53-4 | 1-2 | 1-1 | 0-6 | 18 | 10-0 || Scud; id. 2 rain?’3 f
15 | 004 || 54-7 | 53-6 | 1-1 || 0-7 | 0-4 | 19 / 10-0 || Scud and cirro-strati; clouds rather broken ;
16 000 ||56-8 | 54-4 | 2-4 || 0-7 |0-4 | 18 | | 10-0 id. id.
17 013 || 56-2 | 53-7 | 2-5 | 0-7 | 0-3 | 19 |, 10-0 || Scud ; cirro-strati; cirro-cumulo-strati.
18 012 | 54-3 | 52-0 | 2-3 ||0-5 {0-8 | 18 | 9-2 de 1d. id.
19 017 || 53-8 | 51-2 |2-6 10-5 | 0-4 | 19 | —:19: 21 9-0 || Cir.-str. seud ; thick woolly cirri and cir.-str. ; scud 01
20 032 || 54-7 | 52-0 | 2:7 110-2 10-1 | 20 || —:19:—J]| 9.5 || As before. @ [ch
21 043 || 55-3 | 51-4 | 3-9 |-0-2 | 0-1 | 20 ||20:—:—] 9-5 || Loose seud; loose cir.-cum.-str.; sheets of cir. and cir
92 040 | 54-6 | 51-3 |3-3 ||0-3 |0-1 | 16 || —:20:21|| 7-5 || Cirro-stratus and woolly cirro-cumulo-strati. ’
23 038 | 56-0 |51-8 | 4-2 ||0-1 |Q-1 | 20 || —: 21: 21 8-5 || Thick woolly cirri and cirro-stratus.
14 0 017 59-2 | 54-5 )4-7 0-1 |O-1 | 18 || —: 21: — 9-0 || Woolly cirro-eumuli ; woolly cirri and cirro-s
1 130-005 || 60-3 | 55-0 | 5-3 || 0-2 | 0-1 | 16 || —:21:—]| 8.5 Id. ; id.
2 || 29-975 |\61-4 | 54-3 | 7-1 ||/0-3 |0-8 | 19 || —:21:—! 9.0 | els id. a
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8,8.=16, W.= 24, The j
motions of the three strata of clouds, Sc. (scud), ©.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Oct.:184 115. Observation made at 11» 10™,
Oct. 184 22h. Sheets of thin cirro-stratus having an arborescent structure, and having the appearance of very thin mottled scud when
passing over the zenith, moving rather quickly.
a
HovurLty METEOROLOGICAL OBSERVATIONS, OCTOBER 14—16, 1845.
61-4
62:5
61:3
59-2
58-0
58:5
58-4
56-6
56:9
57-9
48-7
49-0
1 673
THERMOMETERS.
WIND.
53:8
09:0
54:0
52-9
52:3
50:7
51-4
50-2
49-3
49-3
48-5
48-0
47-8
47-7
49-3
51-6
51:8
52-0
52-7
46-6
47-0
47:8
47-6
46-7
46-6
46:3
46-2
46-6
46-0
45-3
45-7
Dry. | Wet. | Diff.
Maximum
force in
1G
oe Oe
NWOMDCOODOK KD
0-4
Ox
Clouds,
Se. : C.-s.: Ci.,
moving
from
22:
PP) &
Bp.
Sky
clouded.
243
Species of Clouds and Meteorological Remarks.
Woolly cir.-cum. ; woolly cir. & cir.-str.; loose scud toN.6
Loose ragged cir.-str. scud ; cir.-cum.-str; cir.-str. and
Nearly as before. [cirri.©
Id.
Id.
Ta.
Cirro-stratous-scud and cirro-strati.
Id.
Id.
Thick cirro-strati and cirro-cumulo-strati.
Thick cirro-strati and cirro-cumulo-strati.
Masses of cirro-stratous scud ; cirro-strati and haze. }-
Cir.-cum.-str. ; cir.-str. & cir. haze; portion of a lunar
As before. [halo. }-
Dense cirro-stratus.
Id.
Cirro-stratous scud; clouds red to ESE.
Id.
slight drizzle.
id.
Ragged scud ; mass of cirro-stratus; deep blue to E.
Seud on horizon; cirro-cumulo-strati; cirro-strati.
Loose scud ; id. ; id.
Td; sheets of thin cirro-strati.
Idi.'s cirro-cumuli ; cirro-strati.
Scud ; cirro-strati.
Cirri and cirro-strati to E.
Cirro-strati to SE.
Id.
Scud moving rapidly.
Scud ; cirro-cumulo-strati.
Scud ; cirro-cumulo-strati.
Id. on E. and S$. horizon.
Id.
Cirro-cumulo-strati ; cirro-strati.
Seud ; drops of rain.
Id. ; shower? since last. [cir. haze to E. )
Seud on Cheviot & in patches round hor. ; thin cir. and
Cirro-strati and cirrous haze on horizon. ©
Scud; cirro-strati; cirri. © [woolly cirri. ©
Masses of scud and loose cum. ; patches of cir. -str. and
YYyeyry ewwtvvuy
Id. ; sheets of curled cir.-str. to SE. ©
Id. 0)
Id. ©
Scud and loose cumuli. 0)
Id. ©
Td.
Id. oO}
Thick scud.
Id.
IGEF cirro-cumulo-strati. »)
Seud ; 76 |e cirro-strati ; cirri. }
Id.; cirrous mass; lunar halo. }
I direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E. = 8, S.= 16, W. = 24.. The
ins of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. ‘
244 Hourty METEOROLOGICAL OBSERVATIONS, OcTOBER 16—19, 1845.
THERMOMETERS. WIND. Clouds
2018 Bano: Masia, Sc.: C.-s : Cis, Sky : F
cise ae a4 Cece a movin g |\cloudea. Species of Clouds and Meteorological Remarks.
rom
1h, | 10™,
in. 3 a 2 lbs. Ibs. pt. || pt. pt. pt. 0—10.
29-657 || 50-0 | 46-4 | 3-6 || 1-2 |0-8 | 19 | 23:—:—1| 10-0 || Seud.
632 || 50-1 | 46-9 | 3-2 || 1-4 | 1-1 | 19 | 10-0 Id. J
[a few drops of rain,
29-622 || 50-4 | 47-3 | 3-1 || 2-7 |1-1 | 19 || 10-0 || Scud on hor. ; sky covered with cir. haze; lunar halo
| 590 || 49-7 | 47-3 | 2-4 {12-6 |1-7 | 19 10-0 | As before, haze rather denser.
| 579 ||50-1 | 47-6 | 2-5 || 3-2 |3-4 | 19 || 24:—:—|| 10.0 | Id.
| 580 |} 49-8 | 47-6 | 2-2 || 3-1 | 1-6 | 19 10-0 || Scud; thickening cirrous haze ; rain”?
564 || 49-7 | 47-6 | 2-1 || 1-8 |1-9 | 19 | 24:—:—|| 10-0 || Patches of scud; thickening cir. haze ; drops of ain,
553 || 50-0 | 47-6 | 2-4 || 2-0 |2-2 | 19 10-0 tds: id. ; id.
| 569 49.6 |47-7 | 1-9 || 2-7 |1-6 | 20 || 23:—:—]| 10-0 td. id. ra
| 577 | 48-4 | 46-6 | 1-8 || 1-6 |0-8 | 21 || 23:—:—]| 10.0 Id. 5 id. }
| 570 || 49-3 | 47-8 |1-5 || 0-7 |0-5 | 19 || 23:—:—|! 10-0 || Thick scud; rain"® i
| 550 | 50-5 | 48.7 | 1-8 || 1-3 |0-7 | 18 || 23:—:—]| 10-0 Id. ; flock of gulls moving westward. \
535 || 52-3 | 49-3 | 3-0 |) 1-8 |1-0 | 20 || 23:—:—J| 10-0 | Seud; cirro-cumulo-strati; cirro-strati. b
538 53-0 | 50-3 | 2-7 || 1-3 |1-1 | 20 || 23:—:—¥] 10-0 Id.; mass of cirro-stratus and cirrous haze. ?
512 || 53-7 | 50-8 | 2-9 || 1-7 |0-1 | 19 || 23:—:—] 9-9 || Id; id.
496 || 53-5 | 50-7 | 2-8 || 1-2 |1-1 | 20 |) 23:—:—| 10-0 Id. ; id.
473 || 54-9 | 51-3 | 3-6 || 1-1 |0-7 | 19 || 22:—:—| 10-0 Td. ; ‘rain®®
449 || 52-4 | 51-7 |0-7 || 0-5 |0-4 | 18 || 23:—:—| 10-0 Id.; Scotch mist; rain?®
436 || 53-2 | 52-7 | 0-5 ||0-6 |0-5 | 20 || 24:—:—} 10-0 | Id; id: 5 rain?”
443 || 54-8 | 53-8 | 1-0 || 0-5 |0-3 | 22 || 24:—:—| 10-0 Tide: id. ; rain?” 4
452 || 55-6 | 54-0 | 1-6 || 0-5 |0-4 | 22 10-0 IGE id. ; id.
453 || 57-0 | 54-3 | 2-7 || 1-7 |0-8 | 21 10-0 Id
465 || 56-8 | 54-3 | 2-5 || 1-4 |0-6 | 21 10-0 || Id.; drops of rain.
477 || 57-0 | 54-5 | 2-5 || 1-4 |0-9 | 21 10-0 Id. ; id.
470 || 58-0 | 54-7 | 3-3 |/2-1 |1-5 | 20 10-0 Id
498 || 57-9 | 54-6 | 3-3 || 2-6 | 2-5 | 21 10-0 Id.
29-501 | 58-0 | 54-3 | 3-7 113-3 | 1-5 | 21 10-0 || Scud
508 || 56-2 | 53-9 | 2-3 113-8 |2-2 | 21 10-0 Id
517 || 56-0 | 53-2 | 2-8 |} 2-6 | 1-7 | 20 10-0 Id
543 || 55-7 | 52-2 | 3-5 13-7 13-4 | 21 10-0 Id
556 || 55-3 | 51-7 | 3-6 || 3-8 |2-0 | 21 10-0 Id
551 || 54-9 | 51-1 | 3-8 114-5 |3-7 |) 20 || 24 -——: — 9-8 Id. '
569 || 54-4 |50-6 13-8 ||3-1 |1-5 | 21 ||94:—:—]] 9.2 Id. ; cirro-cumulo-stratus. [eir. and cir. our
564 || 55-4 |50-6 14-8 ||2-9 |1-9 | 20 || 24:26:—|| 9-2 || Loose scud resting on Cheviot; cir.-str. scud ; mottl
565 || 55-7 | 51-0 | 4-7 || 2-6 |1-6 | 20 || 24:—-:—|| 9-0 || Seud; cirro-cumulo-strati; cirri.
558 || 56-3 | 51-6 | 4-7 ||3-3 14-3 | 20 ||/23:—:—|| 9.8 Id.; cirro-strati.
547 || 56-7 | 53-2 |3-5 113-2 |2-3 | 21 ||23:25:—]) 9.8 Id.; cirro-cumulo-strati.
532 || 57-3 | 53-3 | 4-0 || 3-3 | 2-7 | 22 || 24:—:—|]| 9.9 || Id.; a few drops of rain. wy
538 || 58-0 | 54-2 | 3-8 || 3-0 [2-7 | 20 || 24:—:—/| 10-0 | Ia; id. [sionally.
| 529 | 58-7 | 54.2 | 4-5 |/3-5 |5-5 | 23 || 24:—:—| 6-0 | Scud or loose cumuli; cirri to E.; drops of rain oe¢
| 556 ||58-6 |54-1 14-5 ||5-2 14.2 | 26 ||94:—:—|| 92.9 Tats id. Fi
597 || 55-7 |49-8 |\5-9 117-3 |2-1 | 24 195:—-:——]] 1-5 Tdi id. a
| 653 || 53-3 147-6 |5-7 13-2 |3-6 | 21 ||96:—:—]| 3.5 lidse woolly and mottled cirri.
| 676 ||52-1 | 47-4 |4-7 || 2-7 |1-3 | 24 ||}26:25:—]| 3-0 || Seud; sheets of thin mottled cirro-stratus.
| 717 -| 51-4 | 47-3 | 4-1 11-6 | 1-3 | 22 1-5 || Scud and patches of cirri. a
| 763 ||50-0 | 46-4 13-6 || 1-0 |0-2 | 20 0:3 | Patches of scud and streaks of cirri. z
—-786 || 49-3 | 45-9 | 3-4 10-5 [0-7 | 21 0-2 Id. ;
813 | 48-6 | 45-4 | 3-2 |] 0.7 |0-2 | 21 0-2 || Cirri.
| 830 || 46-7 | 44-0 | 2-7 || 0-4 |0-4 | 21 2:0 || Woolly cirri to S. 4
| 870 |) 46-0 | 43-8 | 2-2 |/0-2 |0-1 | 18 8-5 | Cirro-strati; cirro-cumulo-strati and cirri. _
| '{Sunday—Cloudy, with occasional sunshine and heay
' FE ee ee ee eee iacaliels Waleed kere i showers ; scud from W by S. %
29-509 || 54-4 | 53-4 | 1-0 113-9 |1-9 | 20 10-0 || Seud ; cirro-stratus ; rain! f%
| 493 | 54-0 | 52-9 | 1-1 || 4-2 | 2-6 | 20 || 22:—:—|| 9-5 | Id.; loose cir.-cum.-str.; rain”®; lunar corona. —
| 470 || 53-9 | 52-7 | 1-2 || 3-4 | 1-7 | 20 10-0 || Id.; id. ; rain! x
| 507 ||49-7 |47-2 |2-5 || 3-1 | 1-6 | 20 10-0 | Id.; id. ; rain!
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.= 8, 8.=16, W.=24. Thi
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. e
Oct. 164 115, Observation made at 115 8m, _.
Oct. 1715". Portion of the turkey-feather vane disappeared, so that the directions for a day or two have probably been taken a poin
too much south of west. = |
iB
f
1
2
3
4
5
7
8
9
a
Hovurty METEOROLOGICAL OBSERVATIONS, OCTOBER 19—22, 1845. 245
Dry.
Diff.
WIND.
Maximum
force in
1
10™,
pt.
328°:
226):
2268:
ara ly Species of Clouds and Meteorological Remarks.
0—10.
10-0 || Thick mass of scud and cirro-stratus ? rain!
10-0 Id. ; id.
5-0 || Scud; scud lying on Cheviot; cirro-strati on horizon.
2:5 || Id.; cumuli and nimbi; cirro-strati. ‘S)
7-0 | Scud and loose cumuli; wild-looking sky.
6-0 || Id. fa)
8-0 Id. ra)
3-0 Id. ©
1:5 Id. ©
3-0 Id. ©
0-8 Id. ©
0-2 || Patches of scud and haze on horizon. ©
0-2 Id. 0)
0-3 || Patches of scud and loose cumuli to S.; thin cirri.
0-0 || Clear.
0-0- || Id.
0-0 Id. »))
0-0 Id. y
0-0 Id. »))
0-0 Id. y
0-0 || Clear; faint auroral light; altitude 5°. y
0-0 Id. »)
0-3 || Thin cirri, causing a coloured lunar corona. y
0-0 || A very thin cirrous haze seen near the moon. »)
5-0 || Thin cirri over the sky ; portion of a lunar halo. yp
7-0 || Cirro-cumuli; cirrous haze. >
6-0 Td. cirro-strati; cirrous haze. »)
5-0 Fine mottled and ribbed cir.-cum. ; cir.-str. in patches; cir. haze
8-5 || Cirro-cumulo-strati and cirro-strati; cirrous haze. ©
9-0 || Thick woolly and mottled cirri; cir.-str. ; cir. haze. ©
9-5 || Sheets of cir.-str., rad. from N. and S. ; cir.-cum. ; scud
9-8 || As before. [on Cheviot.
9-2 Id.
9-8 || Thick mass of cirro-strati.
10-0 lich 3 bank of cir.-str. scud on hor.
9-8 || Scud; sheets of cir.-str., rad. from N. and S$. ; cir.-cum.©
9-9 IIGl, 3 id. ; id.
10:0 || Patches of seud ; cir.-cum.-str. ; cir.-str. and cir. haze,
10-0 || Dense mass of cirro-stratus.
10-0 Id.
10-0 Id.
10-0 Id.
8-5 Id. ; stars dim.
6:0 || Cirro-cumulo-strati, cirro-strati, and haze. }
1-0 || Cirro-strati, cirri, and cirrous haze; lunar corona. y
3-0 || Cirro-cumulo-strati; cirrous haze ; id. y
3-5 Id. ; faint auroral light to N. »)
0-5 Cir.-str. and woolly cirri; faint auroral light to N.; col. lun. cor. ))
1-5 Td. ; id. ; id. j
1-5 Id. ; coloured lunar corona. y
7:0 || Woolly cirri; cirrous haze; cirro-strati; lunar cor. )
9-5 || Patches of scud ; woolly cirri and cirro-strati. =)
7-0 || Woolly cirri and cirro-strati; cir.-str. seud on hor. ©
9-7 || Scud; cirri and cirro-strati.
7-0 Id. ; id.
6:5 Id.; sheets of woolly cirri and cirro-strati. (S)
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8,8. = 16, W.= 24. The
_ | Motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
)
|
MAG. AND MET. oss. 1845.
3@Q
246 HourLty METEOROLOGICAL OBSERVATIONS, OCTOBER 22—24, 1845.
THERMOMETERS. WIND.
Gott. || Baro- Hie ae Cee cl eas
ae aE Bet Dry. | Wet. | Diff aha” mat meas ; eee! Species of Clouds and Meteorological Remarks,
1s, |10™. eae a
dad. h. in. 2 2 ci lbs. | lbs. | pt pt. pt. pl 0—10.
2 130-127 | 52-8 |48-1 |4-7 ||0-9 |0-5 | 23 ||26:—:—] 9-7 || Scud; sheets of woolly cirri and cirro-strati.
2 113 | 53-0 | 47-8 | 5-2 || 0-9 | 0-8 | 22 || 26:—:—]| 8-7 | Scud and loose cumuli; woolly cirri and cirro-stra
3 118 || 54-3 | 48-1 |6-2 || 1-3 |0-7 | 23 |26:—:—|| 7-0 Tdi 5 id.
4 114 | 52-7 | 48-1 |4-6 ||0-9 |0-2 | 20 || 25:28:28] 9-5 Tdi; woolly cir. and cir.-str. thicker
5) 117 || 50-6 |46-7 |3-9 || 0-8 |0-4 | 21 | 25:26: 26 9-8 || Scud and loose cumuli; cirri and cirro-strati. _
6 124 | 48-4 |45.2 |3-2 | 1-7 |0-2 | 21 | 25:—:—J| 8-5 || Scud; cirri and cirro-strati; cloud tinged red.
i 143 | 48-0 | 45-3 |2-7 0-6 |0-3 | 22 1-5 || Id. on S. horizon.
8 170 || 47-4 | 45-0 | 2-4 ||0-2 |0-2 | 20 2-0 Id
9 177 || 48-4 | 45-6 | 2-8 ||0-3 |0-3 | 22 8-0 Id.
10 172 || 47-3 |44-9 | 2-4 || 0-4 |0-3 | 19 0-5 || Scud near horizon.
11 173 || 45-4 |43-6 |1-8 0-1 |0-3 | 22 0-2 || Hazy near horizon.
12 176 || 46-0 | 44-1 | 1-9 ||0-3 |0-0 | 12 0-3 || Scud or cirro-stratus near horizon ; lunar corona
13 || 30-165 || 45-2 | 43-9 | 1-3 ||0-2 |0-2 | 21 0-3 || Seud or cirro-stratus near horizon ; lunar corona,
14 157 || 46-5 |45-3 | 1-2 |/0-4 |0-2 | 19 9-5 || Cirro-stratous scud ; cirro-cumulo-strati ; rain”?
1G 172 || 47-1 |45-6 | 1-5 || 0-2 | 0-0 10-0 ligits id. r
16 152 147-7 |45-3 | 2-4 ||0-1 |0-4 | 20 8-5 ides id.
17 138 || 46-4 | 44-2 | 2-2 ||/0-3 {0-2 | 19 ||_-:94:—]|| 3-0 Ides id. ; lunar ¢
18 153 || 43.6 |41-9 | 1-7 ||0-3 |0-1 | 21 5:0 Id. ; id.
19 170 || 46.4 | 44-1 | 2-3 ||0-2 |0-2 | 16 9-2 des id.
20 174 ||48.0 | 44-5 |3-5 ||0-2 |0-1 | 19 ||: 24:—|| 9.8 idly; patches of loose scud on Cheyio
21 167 || 48-4 | 45-8 |2-6 ||0-4 |0-3 | 21 ||—-:24:—]| 9.8 des id. [eix.-str.
22 158 || 49-6 |46-3 |3-3 ||0-7 |0-8 | 20 || —:24:—|| 9.0 Ids id.
23 158 || 50.2 | 46.2 |4-0 | 0-9 |1-0 | 24 ||: 25:—] 8-0 || Loose cirro-stratus ; cirro-str. ; cirri; patches of
Oey (0) 157 || 50-4 |46-4 |4-0 0-8 |0-8 | 19 || —:24:— 9-8 || Cirro-stratous seud; id. ; id,
1 147 || 51-0 | 46-9 |4-1 |/0-7 |1-1 | 20 || 94:—-:— || 9-6 || Scud; cirro-stratous seud. :
2 128 ||51-0 | 46-7 |4-3 || 1-3 |0-5 | 20 || 23:—:—J] 9-8 || Id.; id.
3 121.,].51-2,,)47-0 | 4:2. 110-9 |0-3 | 20 |193:—:—]} 9:8 || Id.; id.
4 120,4),50-3.):46-7.0).d-6 0 les) 0:6.) 20 4193 :— » — 9-7 || Civro-stratous scud ; cirro-cumulo-strati.
5 121 || 49.4 |46-2 |3-2 ||0-7 |0-8 | 20 ||23:23:—]} 9.8 ides id.
6 122 ||49-0 |46-0 |3-0 ||0-7 |0-3 | 21 10-0 Id
7 126 | 48-8 |46-0 | 2-8 | 0-8 |0-4 | 19 10-0 Id
8 126 ||48-5 | 45-6 | 2-9 || 0-9 |0-6 | 20 10-0 Id
9 127 || 48-3 | 45-4 | 2-9 ||0-9 |0-8 | 19 9-9 Id
10 115 || 48-3 | 45-1 |3-2 |}0-9 |0-8 | 18 9-9 Id
11 093 ||48-2 |44-6 |3-6 || 1-1 |0-9 | 19 8-0 Id.
12 080 || 47-7 | 44-3 | 3-4 || 1-3 |1-2 | 20 6-0 Tdees cirro-cumulo-strati.
13 | 30-077 ||47-9 | 44-6 | 3-3 || 2-1 |1-0 | 20 7-5 || Cirro-stratous scud ; cirro-cumulo-strati.
14 061 ||47-9 | 44-4 | 3-5 || 1-1 | 1-2 | 22 9-0 ie bee id.
15 048 || 47-0 | 43-4 |3-6 11-2 |0-8 | 20 ]/_-:22:— || 7.0 Tides id.
16 042 47-6 |43-6 | 4-0 || 1-3 |0-4 | 18 9-8 Td; id.
17 032 || 47-6 |43-5 | 4-1 ||0-8 |0-6 | 18 9-8 Id. ; id.
18 026 || 46-9 |42-6 |4-3 ||/1-5 |0-3 | 19 ||: 22:—]|| 8.0 d's id.
19 020 ||46-8 |42-8 |4-0 ||0-7 |0-4 | 21 || —:22:—J] 9-5 ds id.
20 024 1148-1 |43-5 |4-6 ||1-3 |1-0 | 21 ||—:22:—]| 9-8 Id.
2 022 ||48-2 | 44-3 |3-9 ||0-6 |0-2 | 20 || —: 22:—|| 10-0 lich dense mass of cirro-stratus. :
22 005 ||49-2 | 45-3 | 3-9 ||0-4 |0-6 | 21 |} —:22:—|| 10-0 Ids; id. a
23 || 30-001 || 51-3 | 47-4 |3-9 || 1-3 |0-5 | 19 || —:22:—]| 9-5 Tdi; sheets of cirro-strati.
24. 0|| 29-997 || 51-6 | 47-2 |4-4 || 1-3 |0-4 | 20 ]}—:22:— | 9-8 Tass; id.
1 969 ||52-3 |47-7 |4-6 || 1-7 |0-6 | 19 || 21:20: — 6-0 || Seud ; cirro-cumulo-strati.
2 938 || 52-4 |47-9 |4-5 || 2-4 |1-3 | 20 || 21: —:— 9-5 || Loose and cirro-stratous seud,
3 912 || 51-7 | 49-0 | 2-7 || 1-0 |0-8 | 19 || 20:21:—}| 10-0 || Seud; cirro-stratous scud.
4 888 51-5 | 48-2 13-3 |/1-6 [1-2 | 18 || 20:21:—|| 9-0 || Id.; cirro-cumulo-strati.
5 874 || 50-3 | 47-4 | 2-9 || 1-7 |0-8 | 19 || 20:—:—] 10-0 Id. ; id.
6 854 | 49-7 | 47-0 | 2-7 ||0-9 | 0-7 | 19 || 20:—:—J| 10-0 Td 5 id
7h 843 || 49-6 | 47-0 | 2-6 || 0-5 |0-6 | 19 10-0 aes id
8 815 | 49-8 | 47-4 | 2-4 |/1-3 [0-9 | 18 10-0 ides id
ma
The direction of the wind js indicated by the number of the point of the compass, reckoning N. = 0, H.= 8, 8S. = 16, W. = 2
motions of the three strata of clouds, Se. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
. HourLy METEOROLOGICAL OBSERVATIONS, OcTOBER 24—27, 1845.
THERMOMET
lor)
—_
Ke)
on
(or)
my
52-2
52:3
52-1
ERS.
. | Diff.
Pw WH SCHIAMARWHYHOwUNE
52-0
WIND.
Maximum
force in rout
1h, |10™.
a
a
SeoeOorre KF Cee
NNO WE OO NAD wWwWs
So — — bw We bd WwW
© ON Ore Orc or
Clouds,
Se.: C.-s.: Ci.,
moving
from
pt. pt pt.
26:
24:
22:
Sky
clouded.
eeeeee
247
Species of Clouds and Meteorological Remarks.
Seud.
Seud and cirro-stratus.
Id.
Id.
Scud and cirro-stratus; sky to S.
Id. ; very dark ; rain?
Id. [large lunar corona. }-
Civ.-cum.-str. and cir.-str.,radiating from NE. and SW.;
Thick woolly cirri and cirrous haze.
Bands of cirro-strati and woolly cirri to SE.
Cirro-strati to SE.
Cirro-strati, cirri, and cirrous haze on horizon.
Streaks of cirri and haze on horizon.
Id.
Id.
Patches of cumuli to N.; cirrous haze on horizon.
A few patches of cumuli ;
Td. ;
Id. ;
Masses of cumuli; cirri and cirrous haze.
Seud ; cirrous haze.
Id.; id.
Haze on horizon.
Id.
Id.
Id.
Ci1rous streaks.
Patches of cirro-strati and cirri.
©©O00000 vry
Sunday—Overeast ; scud and cirrous haze.
Scud and cirro-stratus ; drops of rain.
Id.
Id. ; drops of rain.
Id.
Id.
Id. ; very slight drizzle.
Patches of scud ; thin cirro-stratus ; drizzling rain”? )
Scud ; cirro-stratus.
Id. ; id.
a; id.
Id. ; id.
Id. ; id.
Id. ; id.
ide) id. ; drops of rain.
Td. ; id. ; drizzling rain”?
Cirro-stratous scud; cirro-stratus ; rain?
Seud; cirro-stratous scud ; cirro-strati ; rain”?
Seud and cirro-stratus ; rain”?
Tiek, 2 id.
Dark; rain”?
Td. ; id.
IGl. 2 id.
Id.
Td.
Dark.
Scud and cirro-stratus.
he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, So le) Wis) he
}tions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Gott. BaARo-
Mean METER
Time. || at 32°
edn. in.
27 15 || 29-572
16 582
17 586
18 590
19 600
20 614
21 625
22 625
23 629
28 0 647
1 644
2 637
3 643
4 626
5 639
6 628
7h 638
8 639
9 630
10 620
11 610
12 621
13 615
14 616
15 612
16 610
17 608
18 593
19 579
20 583
21 576
22 576
23 589
29 0 587
1 575
2 561
3 551
4 527
5 516
6 dil
i 498
8 481
9 463
10 444
11 429
12 407
13 || 29-385
14 374
15 357
16 343
17 353
18 370
19 398
20 437
Pall 470
99): 510 |
Hovurty METEOROLOGICAL OBSERVATIONS, OCTOBER 27—29, 1845.
Wet.
1-7
oO
—_
bo
e 5 5 .
o 5 oe
DOPE KhOOSOADONWNHAHODWWKHKHRO NOND
51-0
51-1
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, HE. = 8, S.= 16, W.= 24.
motions of the three strata of clouds, Se. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. ;
THERMOMETERS.
Diff.
WIND.
Maximum
force in
yh, (10™.
Clouds,
Sc. : C.-s.: Ci.,
moving
from
pt. pt. pt.
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Scud and cirro-stratus ; stars dim.
GES very dark.
d..s clouds broken. °
dis id.
gtd
Seud ; cir.-str. ; the upper clouds tinged with red t
Id.; cirri; cirro-strati.
Loose scud ; cirro-stratous scud ; cir.-cum. ; cir.-
Seud ; cirro-strati.
d= id. ; cirri.
Id. ; Ids id.
Ihe ns id.
Id. ; id.
de: id.
Id? ; id.
Id. ; id. ; rain?”
Tans id.
Tide: id.
Id. ; id.
Scud and cirro-stratus.
Id.
Thin cirro-stratus scud ?
Seud on horizon.
Scud; cirrous haze ? ?
Id. ; id.
Id.
Td’
Id.
Id.
Td.
Id.; cirro-stratous scud and cirro-stratus.
Id.; dense cirro-stratus and haze.
Tdi 5 id. ; rain?”
Id. ; id. ; rain!
Tale: id.
IGE id. ; rain®?
Id. ; id.
Id. ; id.
Gb id.; rain!
Gh id, ; slight drizzle
Id.; rain
Td id.
Id.
Vos, ® id.
Id.; very dark; rain”?
Rain®®
Id.
Dark
Id.
Very slight drizzle.
IGS clouds broken at 155 40™. —
Seud.
Id.
Id. ; cirri.
Id.; rain! 2
Id. ; cirro-cumulo-strati; cirro-strati; cirri.
Id. ; cirro-strati.
BUH SCHONATHW DH OODIBAARWYOHOD”
CO
or
@
LT
rh
932
932
931
938
961
973
985
979
982
980
977
976
976
980
our wnre © Wb r os
Oct, 314 214,
THERMOMETERS. WIND.
Maximum
Dry. | Wet. | Difr.|]| force 12 |From
14, | 10™,
3 iS is lbs. | lbs pt.
52-2 | 48-0 | 4-2 || 1-9 | 1- 23
53-4 | 47-2 |6-2 || 1-8 | 1-8 | 24
53-3 |46-8 |6-5 ||1-8 |0-7 | 21
52-7 |45-3 | 7-4 ||2-4 11-6 | 21
53-2 |46-6 | 6-6 || 1-7 | 1-1 | 22
51-6 | 46-1 | 5-5 || 1-3 {0-1 | 20
48-7 | 44-7 | 4-0 ||0-6 | 0-7 | 22
46-1 | 43-1 |3-0 ||0-6 | 0-1 | 20
45-0 | 42-0 | 3-0 ||0-2 | 0-1 | 16
41-4 |40-0 | 1-4 ||}0-2 | 0-1 | 22
42-9 | 41-1 | 1-8 |/0-1 |0-1 | 18
43-0 | 41-4 | 1-6 ||0-1 | 0-0 | 23
40-5 | 39-6 |0-9 ||0-1 |0-1 | 25
40-7 | 39-8 |0-9 || 0-1 |0-0 | 17
39-5 | 38-8 |0-7 || 0-1 | 0-1 | 16
39-3 | 38-4 | 0-9 ||0-2 |0-1 | 16
38-8 | 38-0 | 0-8 || 0-2 | 0-1 | 24
38-8 | 38-0 | 0-8 || 0-2 |0-1 | 18
40-7 | 39-0 | 1-7 ||0-2 | 0-4 | 22
38-8 | 37-8 | 1-0 || 0-3 |0-1 | 24
42-2 | 40-0 | 2-2 ||0-5 | 0-4 | 20
39-0 | 38-0 | 1-0 || 0-4 | 0-0 | 16
44-3 | 41-9 | 2-4 ||0-2 | 0-3 | 20
46-6 | 44-0 | 2-6 ||0-7 |0-7 | 18
48-8 |45-3 | 3-5 || 1-7 | 1-3 | 19
49-7 |46-3 | 3-4 || 1-4 |0-8 | 19
50-0 | 46-9 | 3-1 |/ 1-0 | 0-4 | 20
52-0 | 48-3 | 3-7 || 0-9 | 0-6 | 19
52-0 | 48-6 | 3-4 || 1-0 | 0-3 | 18
53-6 | 50-1 | 3-5 || 1-0 |0-3 | 19
50-7 |48-2 | 2-5 10-9 | 0-4 | 18
49-8 | 47-6 |2-2 ||0-5 10-8 | 18
49-7 | 47-4 | 2-3 ||0-6 |0-2 | 18
50-4 |48-0 | 2-4 ||0-7 | 0-5 | 20
50-0 |48-0 | 2-0 || 0-8 |0-3 | 24
49-5 | 47-7 | 1-8 || 0-7 |0-1 | 17
49-8 |47-6 | 2-2 ||0-3 |0-3 | 20
50-4 | 46-2 |4-2 ||0-4 | 0-6 | 21
48-8 | 45-4 | 3-4 ||0-3 | 0-2 | 22
47-8 |45-0 | 2-8 ||0-2 | 0-2 | 21
46-3 | 44-0 | 2-3 ||0-4 |0-1 | 21
46:3 | 43-9 | 2-4 ||Q-2 |0-2 | 21
46-0 | 43-7 | 2-3 ||0-3 |0-1 | 21
43-6 | 42-2 |1-4 ||/0.2 |0-1 | 21
42.8 |41-4 | 1-4 || 0-1 |0-1 | 22
42.3 |41-0 | 1-3 ||0-1 |0-1 | 23
43-1 | 41-8 | 1-3 ||0-0 |0-0 | 21
46-3 | 44-3 | 2-0 ||0-1 |0-0 | 23
47-8 | 45-8 | 2-0 ||0-0 }0-0 | 15
50-8 | 46-2 | 4-6 ||0-0 |0-0 | 23
51-2 | 46-3 | 4-9 || 0-1 |0-0 | 20
50-2 | 46-0 | 4-2 ||0-1 |0-0 | 23
50-2 | 46-2 |4-0 ||0-0 |0-0 | 26
49-0 | 45-6 | 3-4 ||0-0 |0-0 | 31
48-0 | 45-0 | 3-0 ||/0-1 |0-0 | 31
147-6 |44-0 | 3-6 |!0-0 | 0-0 8
Clouds,
Sc.:C.-s.: Ci,,
moving
from
pt.
T2951
225:
: 26
HourLty METEOROLOGICAL OBSERVATIONS, OcTOBER 29—-NOVEMBER 1, 1845.
Sky
clouded.
249
Species of Clouds and Meteorological Remarks.
Scud and loose cumuli; cumulo-strati; cirro-strati. ©]|
Loose cumuli; thin cirro-strati. ©
Ile cirro-strati; cumuli. (0)
Cirro-stratous scud; streaks of cirri and cirrous haze. ©
like id, ©
Tides cirro-strati; cirrous haze. ©
leks cirri; cirrous haze.
Id.
Cirro-strati to S.
Clear.
Td.
Patches of cloud.
Streak of cloud to N.
Clear.
Clear
Td.
Id.
Id.
Cirro-strati on 8. and W. horizon. i
Patches of clouds to E. [the sky. |
Patches of cir.-str. on hor.; light cirri spreading over |
Cirro-strati to N.; thin cirri over most of the sky.
Id. ; thin cirri; patches of scud to N. ©
Woolly cirri, cirro-strati, and woolly cirro-cumuli. ©
Masses of seud, woolly cirri, cirro-cumuli, and cir.-str. ©
Seud ; woolly cirri; cirro-strati. (s)
dks id. ; id.
Id.; cirro-cumulo-strati; cirri; cirro-strati. (2)
Cirro-stratous scud.
Id. ; cirri; cirro-strati. oO}
Id. ; idles id.
Id. ; Tels id.; clouds tinged red.
Id.
Very dark
Td.
Scud. [light to N. ; aurora ?
Patches of seud ; cir.-str.; thin cir. haze over sky ; milky
Thin cir.-str. and cir. haze round hor. ; milky to N.; clear in zenith.
Cirro-strati; cirrous haze.
Id. ; id. [milky to N.
As before ; stars seen dimly over 7:0 of sky; rather
Cirro-strati and cirrous haze on horizon.
Cirrous haze on E. horizon.
Id. ; sky milky to E by S.
Cirro-strati and cirri on horizon.
Woolly and mottled cirri, rad. from E. and W. ; cir.-str.
Cirro-cumulo-strati; cirri. (s)
Id. ; id. @
Id. ; id. .)
@
Cirro-cumulo-strati and cirro-strati ; cirri.
Cirro-stratous scud ; cirro-strati.
Dense mass of cirro-stratus.
Id.
Td.
Id.
Id.
Observation made at 215 5™,
MAG. AND MET. oBs. 1845.
‘The direction of the wind is indicated: by the number of the point of the compass, reckoning N.= 0, E. = 8, S.= 16, W.= 24. The
otions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
250
Gott. BaRo-
Mean METER
Time at 32
ad li in.
1 7 || 29-987
8 992
9 993
10 999
11 || 29-998
12 || 30-005
2 13] 30-116
13 || 30-138
14 128
15 124
16 109
il 103
18 099
19 098
20 108
Pail 120
22 125
23 125
3 0 124
1 115
2 104
3 091
4 088
by 085
6 080
7 092
8 091
9 097
10 O91
11 068
12 061
13 || 30-050
14 || 30-028
15 || 30-012
16 || 29-997
17 979
18 970
19 960
20 953
21 949
22 942
23 925
4 0 909
1 886
2 853
3 836
4 $24
5) 810
6 796
7 792
8 ae
9 761
10 741
11 708
12 680
Hourly METEOROLOGICAL OBSERVATIONS, NOVEMBER 1—4, 1845.
THERMOMETERS. WIND.
Clouds,
Maximum Se. :C.-8. 2 C15
Dry. | Wet. | Diff. force in irom ee
1h. |10™,
2 2 S Ibs. | lbs pt. pt. pt. pt.
47-2 |43-7 | 3-5 ||0-0 |0-0 | 28
46-4 | 43-8 |2-6 ||0-0 |0-0 | 28
47-0 | 43-5 | 3-5 || 0-0 |0-0
46-4 | 43-6 | 2-8 || 0-0 | 0-0
45-4 | 43-5 | 1-9 | 0-0 | 0-0
45-0 | 43-3 |1-7 ||0-0 | 0-0 | 18
48-0 | 44-0 | 4-0 || 0-1 | 0-1 8 ||—: 8:—
42-2 |40-0 | 2-2 |0-3 |0-1 | 17
42-8 | 39-7 | 3-1 || 0-2 |0-1 | 16
42-3 | 39-3 |3-0 || 0-4 |0-1 | 17
42-5 | 39-0 |3-5 ||0-2 |0-2 | 18
41-8 | 39-3 | 2-5 ||0-1 |0-1 | 18
41-5 | 38-9 | 2-6 || 0-1 | 0-1 | 18
41-6 | 38-9 | 2-7 ||0-2 |0-1 | 16
40-8 | 38-7 |2-1 |/0-1 |0-0 | 18 |}; —:19: —
41-4 | 39-4 |2-0 | 0-0 |0-0 | 18 ||, —:18:—
42-7 |40-0 | 2-7 ||0-1 |0-0 | 18 |} —:18:—
43-5 |40-6 |2-9 |, 0-2 |0-1 | 16 |} —:19:—
44.6 | 41-4 | 3-2 0-1 |0-1 | 18 || —:20:—
45-0 | 42-0 |3-0 ||0-1 |0-0 | 20 || —: 21:—
47-4 | 43-3 |4-1 || 0-1 |0-0 | 20 || —: 20 :—
46-7 | 42-5 |4-2 10-1 |0-0 | 20 || —:21:—
44-8 | 41-2 |3-6 ||0-1 |0-0 | 18 || —: 20: —
37-7 |36-6 | 1-1 || 0-0 |0-0 | 18
34-3 | 33-6 |0-7 ||0-0 |0-0 | 16
32-1 | 31-4 |0-7 || 0-1 |0-0 | 23
30-7 | 30-5 | 0-2 || 0-0 | 0-0
30-6 | 30-2 | 0-4 || 0-0 | 0-0
29-6 | 29.4 |0-2 || 0-0 | 0-0
29-7 | 29-3 | 0-4 || 0-0 | 0-0
29-8 | 30-5 | --- ||0-0 | 0-0
28:0 | 27-9 | --- || 0-0 | 0-0
29-2 | 29-0 |0-2 || 0-0 | 0-0
27-1 | 27-1 | ... |0-0 | 0-0
28-0 | 27-4 |0-6 || 0-0 | 0-0
28-0 | 27-7 |0-3 || 0-0 | 0-0 | 24
28-5 | 28-0 | 0-5 ||0-0 | 0-0 | 22
29-5 | 29-3 | 0-2 || 0-1 |0-0 | 26
28-4 | 27-6 |0-8 || 0-0 |0-0 | 22
29-0 | 28-6 |0-4 | 0-0 |0-0 | 18 |,
31-7 | 31-4 |0-3 || 0-0 |0-0 | 20 | —:—: 20
34-4 | 32-4 |2-0 |0-0 |0-0 | 28 | —:—: 20
37-9 |37-1 |0-8 ||0-0 |0-0 | 26 ja 20
39-8 |38-7 | 1-1 | 0-0 | 0-0 | 22 || —:—:20
45-3 | 40-0 | 5-3 || 0-1 |0-0 | 22 i — : 20
47-3 | 40-8 |6-5 ||0-2 |0-1 | 21
43-5 | 39-7 |3-8 ||0-1 |0-0 | 18 |!
39-1 | 35-3 |3-8 || 0-1 |0-0 | 20 |
37-2 | 32-9 | 4-3 | 0-1 |0-0 | 18
32-6 | 30-0 | 2-6 | 0-0 | 0-0
31-0 | 28-6 | 2-4 | 0-0 |0-0 | 17
29-0 | 27-0 |2-0 ||0-0 |0-0 | 16
31-9 | 28-7 {3-2 ||0-1 |0-0 | 14
35-8 | 31-4 |4-4 |/0-4 | 0-4 | 17
38-0 | 32-9 |5-1 |} 1-2 11-0 | 17
Sky
clouded,
Species of Clouds and Meteorological Remarks,
Very dark.
Td.
Id.
Cirro-stratous-scud ? clouds tending to break.
Homogeneous.
Id.
Cirro-stratous scud.
Seud.
Id.
Id.
Id.
Id.
Td.
Id.
Cirro-stratous scud.
Id. ; thick and flame-like cirri to SE
td. cirrous haze and cirro-strati.
Id. ; id.
id.- cirri and cirrous haze.
Id. ; id.
iid: id.
ide; id.
Tides id.
Cirri and cirrous haze ; patches of scud to W.
Cirri and cirrous haze on horizon.
Id.
Cirrous haze on horizon.
id
Id.
Clear ; hoar-frost on the ground.
Id.
Clear.
iti
Id.
Id.
Id.
Id.
Cirro-strati and cirri on E. horizon.
Cirri and cirrous haze on E. horizon.
Cirri and cirro-strati to SE.
Woolly cirri and cirro-strati rad. from SW. and N
Td. .
Id. ; cirrous haze
lds id.
Id. ; id.
GEL cir. haze onh
Id. ; id. @
iia; cirrous has
Id. ; id.
Clear ; haze on horizon ?
Id.; id.
Id.
Id.
Id.; very faint auroral light to NNW.
Id. ; aurora.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8,8. = 16, W.= 24. the
motions of the three strata of clouds, Sc. (scud), C
.-S. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
HovurLy METEOROLOGICAL OBSERVATIONS, NOVEMBER 4—6, 1845. 251
THERMOMETERS. WIND.
in. Clouds, (
fe METER Maximum ee Gs is 1 Sry Species of Clouds and Meteorological Remarks.
», || at 32°. || Dry. | Wet. | Di] force in [ppom|] ™Movins _ |i*touded.
jh 10m
He ° ° @ lbs. | Ibs. | pt. |] pt. pt. pt. |} 0—10.
3 36-4 | 33-2 | 3-2 |/0-9 | 0-3 | 18 0-0 || Clear
4 34-9 | 32-2 | 2-7 |/0-4 |0-1 | 19 0-0 Id.
5 35-5 | 32-4 | 3-1 ||/0-4 |0-1 | 24 0-0 Id
6 34-2 | 31-0 | 3-2 || 0-1 |0-0 | 20 0-0 Id
7) 31-6 | 29-8 | 1-8 || 0-0 | 0-0 8 0-0 Id
8 31-4 | 29-4 | 2-0 |] 0-0 | 0-0 0-0 Id.
9 31-9 | 30-2 | 1-7 | 0-1 |0-1 | 18 0-0 Id.; fine red on E. horizon.
35-5 | 32-7 |2-8 ||0-6 {0-5 | 16 0-0 Id. ; reddish on W. horizon.
i} 34-5 | 32-1 | 2-4 0-3 |0-1 | 26 0-2 Id. ; cloud on S. horizon. ©
2 37-6 | 34-4 | 3-2 ||0-2 |0-0 0 0-2 Id. ; thin cirri and haze on horizon. ©
Bt 39-7 | 36-3 | 3-4 | 0-0 |0-0 | 16 0-2 Id. ; id. ©
0 42-7 | 38-4 |4-3 10-1 |0-0 | 16 0-5 || Streaks of cir. to E. and W., radiating from about N, ; hazy on hor. ©
11 45-5 | 41-3 |4-2 0-2 |0-1 | 12 || —:20:—| 0-7 || Loose cirro-stratus; cirro-strati; cirrous haze. 0)
2 47-7 | 43-7 | 4.0 0-2 |0-1 | 11 || —:18:— 6-5 Cir.-str. scud and loose cir.-str. ; cum.-str. ; woolly cirri and haze.©
Bu 47-1 | 43-4 | 3-7 10-4 |0-1 | 14 0-8 Patches of loose cir.-str. ; cir.-cum.-str. ; cir. ; brownish atmospheric
4 44-4 | 41.5 | 2.9 0-1 |0-0 | 12 || —:—:19]] 1-5 || Woolly and mottled cir. ; cir-str.andhaze. © ‘haze.@
GF 42-6 | 40-3 | 2-3 |}0-1 |0-0 | 12 5:0 Id. ; id. »))
6 38:5 | 37-5 | 1-0 || 0-0 | 0-0 | 30 1-0 || Cirro-strati and cirri. »))
36-8 | 36-1 | 0-7 || 0-0 | 0-0 0-5 || Patches of cirri; cir. haze; coloured lunar corona. )
35-3 | 34-8 | 0-5 || 0-0 | 0-0 2-0 || Cirro-str., cir.-cum., and cirrous haze; lunar corona, }-
36-6 | 35-9 | 0-7 || 0-0 |0-0 | 16 10-0 || Scud? the sky became overcast about 8" 30™.
41-4 | 40-5 |0-9 10-5 | 0-0 6 9-0 || Cirro-stratus and haze.
42-9 |41-9 | 1-0 0-1 |0-1 | 22 10-0 Id.
43-6 |42-6 | 1-0 ||0-1 | 0-0 10-0 Id.
3 | 29-370 || 45-4 | 44-1 | 1-3 ||0-0 | 0-0 10-0 || Very dark.
4 45-9 |44-9 | 1-0 || 0-1 |0-i | 16 10-0 Id.
5 49-3 147-9 | 1-4 ||0-3 | 0-0 8:5 || Clouds broken.
6| 49-4 | 48-0 | 1-4 |/0-0 | 0-1 | 18 9-8 || Scud.
a 51-7 | 49-7 | 2-0 || 0-6 | 0-2 | 16 10-0 Id.
isl 51-8 | 50-0 | 1-8 || 0-4 |0-2 | 16 10-0 Id.
9] 50-5 |48-7 | 1-8 ||0-5 |0-2 | 16 ||} 18:—:—]} 3-0 Id.; cirro-strati.
0} 49-6 | 48-0 | 1-6 0-4 |0-3 | 16 || 20:—:—J| 2-5 || Patches of scud; sheets of cir.-cum.-str.; cirri and haze.
| 00:3 |48-5 | 1-8 ||0-5 |0-5 | 15 || —:16:— 5-0 || Loose cir.-cum.-str.; scud ; flame-like and linear cirri. ©
2 | 51-4 | 49-5 | 1-9 || 0-5 |0-3 | 16 || 16:—:—J| 5-0 || Cirro-cumulous scud; sheets of cirro-strati and cirri ©
| 52-0 | 49-8 | 2-2 | 0-9 |0-7 | 16 || 17:—:—|]| 5-0 || Scud; cirro-strati. a)
60 56:0 | 52-4 | 3-6 || 0-8 | 1-0 | 16 || 18:16:—]| 4-0 Id.; patches of cirro-strati and cirri. )
iH 54:1 | 51-1 | 3-0 10-8 |0-5 | 14 5-0 || Scud near horizon ; cir.-cum.-str. and woolly cirri. ©
pI 56-1 | 52-3 | 3-8 0-9 |0-5 | 15 || —:16:—|| 4-0 |) Cirro-cumulo-strati; woolly cirri. (0)
3] 54-0 | 50-9 | 3-1 | 1-5 | 1-0 | 15 || —:15:—|| 3-5 || Sheets of cirro-strati and cirro-cumulo-strati.
if 52-2 | 50-0 | 2-2 || 1-7 |0-9 | 14 ||} 14:15:—H} 3-0 || Loose scud near horizon; cirro-cumulo-strati.
5 | 52-0 | 49-8 | 2.2 || 2-2 | 1-2 | 14 || 14:15:— 7-5 || Patches of scud; cir.-str.; cir.-cum.-str.; brown haze on
6} 52-7 | 50-5 | 2-2 |} 1-1 | 1-3 | 14 || —:14:—J]| 8-5 || Cirro-cumnulo-strati and cirro-strati. }- [hor. >
vAll 53-0 | 50-7 | 2-3 |} 1-3 | 1-5 | 15 9-8 Id.
Bi 52-8 | 50-3 | 2-5 11-3 |0-4 | 13 10-0 || Scud and cirro-strati.
p| 53-3 | 50-2 | 3-1 || 1-2 | 1-2 | 12 9-9 Id.
‘ 52-4 | 49-8 | 2-6 | 1-9 |1-8 | 14 10-0 Id.; cirrous mass.
Ay 51-2 | 48-7 | 2-5 10-9 | 1-1 | 12 10-0 Id. ; id.
F 50-9 | 48-6 | 2-3 |} 1-1 |0-1 | 12 10-0 || Very dark.
B| 29-083 || 50-8 | 48-5 | 2-3 |/0-3 |0-2 | 7 | 10-0 || Very dark; a few drops of fine rain.
|| 29-039 || 50-1 | 48-5 | 1-6 0-3 | 0-4 | 11 | 10-0 Id. 5) rain??
>’ 50-0 | 48-6 | 1-4 || 0-6 | 0-4 | 11 | 10-0 Id. ; shower! since last hour.
| | 50-7 |48-9 | 1-8 | 1-3 |0-7 | 13 10-0 || Cirro-strati; rather broken to E.
| 50-7 | 49-2 |1-5 | 2-0 | 0-7 | 14 10-0 tO dark,
B 50-5 | 49-2 | 1-3 || 1-3 |0-2 | 14 10-0 || Scud and cirro-strati; clouds broken to S.
51-2 | 49-5 | 1-7 ||0-6 |0-2 | 14 9-8 Id.
152-3 149-5 |2-8 111-5 11-5 | 18 119:18:—|| 8-5 || Loose scud; dense mass of wavy cirro-strati.
‘
yi he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H. = 8,8. =16, W.= 24. The
‘Mions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
jov.5¢ 7h. Auroral arch 12° altitude to NNW.
252 HovurLy METEOROLOGICAL OBSERVATIONS, NOVEMBER 6—10, 1845.
THERMOMETERS.
Time. at 32°. Dry. Wet.
1 164 || 48-8 | 48-0
2 150 || 49-0 | 48-1
Diff.
WHNDEHAHONSCSOHNODOHAOAWNVOSND
Maximum
force in
yn) Lom
[=>}
eo
HOMME EH OSOSHHOHOF:
ouwnwonrwnrwowonwonys?
HORE H OOOH
HKohONMA WOO
°
or
WIND.
From
17
22
Clouds,
Se. : C.-s.: Ci.,
ize
14:
sGi:
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Patches of scud ; woolly and linear cirri.
Woolly and linear cir.; scud and cir.-str. round
Scud and loose cumuli; cirro-strati; cirri.
ick 2 id.
Loose scud and cirro-strati round horizon.
Td.
Woolly cirri; cirro-strati; haze.
Scud ; woolly cirri; cirro-strati ; haze.
Cirro-stratus ; cirri and cirrous haze.
Cirro-cumulo-stratus ; cirro-strati; cirrous haze.
Thickening cir.-str. and cir. haze ; drops of rain.
Cirro-cumulo-strati ; cirro-strati ; showers occasic
Patches of scud ; cirro-strati; cirrous haze.
Dark ; rain?
Scud ; cirrous haze.
Cirri and cirrous haze.
Seud and cirro-strati.
Id.
Drops of rain.
Seud and cirro-strati.
Id. [on hori
Cir.-str. scud ; cir.-str.; homogeneous cir. mass;
Scud ; cirro-strati, &c., as before.
Nd id.
Ia. ; id q
Tidy, id. ’
Id..; id.; drops of rain,
fds- id. ; rain?”
Dense mass of undulated cirro-strati.
Loose scud ; cirrous mass; rain”?
Scud ; dense cirro-stratus,
Scud and cirro-strati; stratus on the ground.
Cirro-cumulo-strati ; two bats seen.
Tdi cirro-strati.
Tas id.
Tdi. id.; stratus on the grot
Ikbs id.; mist on the groun
Td. ; woolly cirri ; id. ;
Sunday—Cirro-strati ; cirri ; occasional sunshine
| fogey throughout the day. %
Cirro-cumulo-strati; fog on the ground.
ih id. q
Id. ; id.; drops of ra
Dark; clouds homogeneous. "
tds; id.
ide id.
Clouds homogeneous.
Misty scud ; cirrous mass; foggy.
Seud ; slight fog.
id; id.
Seud ; cirro-strati; slight fog.
ids de fog on horizon.
Id. ; id. ; id.
IGE id. ; id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, 8S. = 16, W.= “4, Th
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Hovurty METEOROLOGICAL OBSERVATIONS, NOVEMBER 10—12, 1845. 253
THERMOMETERS. WIND. Olendy,
Wetec Se.: C.-s.:Ci.,|| Sky J :
Dry. | Wet. | Diff force in| from at clouded. Species of Clouds and Meteorological Remarks.
14, | 10™,
| 2 2 ¢ lbs. | Ibs. pt. pt. pt. pt 0—10.
49-1 | 48-2 |0-9 |0-0 |0-0 | 2 || 5:14:—j 9-8 || Misty seud ; cirro-strati; fog on horizon. Ce)
48-8 |48-3 |0-5 ||0-1 | 0-0 3 || 5:—:—]| 9-6 Id. ; id. ; id.
48-3 | 47-8 |0-5 ||0-1 |0-1 4)}—: 6:— 9-5 || Cirro-cumulo-strati ; cirro-strati.
47-4 |47-1 |0-3 0-1 |0-0 | 4 10-0 Id. 2 drops of rain.
47-3 | 46-9 | 0-4 || 0-1 | 0-0 4 10-0 Id.
47-4 |47-1 | 0-3 || 0-1 | 0-0 6 10-0 Td. ; rain!
47-2 | 46-9 | 0-3 || 0-0 | 0-0 10-0 Id.
46-7 | 46-5 |0-2 ||0-0 |0-:0 | 8 || —:15:— 8-0 || Thin cirro-cumulo-strati ; fog on the ground. >}
45:0 | 44-7 | 0-3 | 0-0 | 0-0 —:14:— | 9-5 || Cirro-cumulo-strati; stratus in the valleys. }
44.7 | 44.4 |0-3 || 0-0 | 0-0 4 9-9 || Scud; cirro-cumulo-strati.
45-5 | 45-0 |0-5 || 0-1 |0-0 2 10-0 || Scud; cirro-cumulo-strati.
45:5 |45-1 | 0-4 | 0-0 | 0-0 10-0 || Id.; id. ; nearly homogeneous.
45-6 |45-3 |0-3 0-0 |0-:0} 4 9-9 Ile id
44.8 |44-3 |0-5 || 0-0 | 0-0 9-7 Id. ; id.
42-7 | 42-1 |0-6 || 0-0 |0-0 | 12 8-0 Id. ; id.
41-9 | 41-0 |0-9 || 0-1 |0-0 | 14 0-5 || Masses of seud.
38-3 | 37-8 |0-5 ||0-2 |0-1 | 14 0-5 || Cirro-cumulo-strati on E. horizon.
38-4 | 38-0 |0-4 || 0-1 | 0-0 | 28 ||} 14:10:—|) 5-0 || Loose misty scud ; cirro-cumulo-strati.
36-7 | 36-5 |0-2 ||0-0 | 0-0 | 17 1-0 || Cirro-strati on horizon. 0)
39-0 | 38-6 | 0-4 || 0-0 | 0-0 4 1-0 || Cirro-strati and cirrous haze. 0)
42-1 | 40-7 | 1-4 || 0-1 | 0.0 3 || —:—:13)| 2-0 || Thick woolly cirri; cirro-strati; stratus on horizon. ©
43-6 | 42-0 | 1-6 || 0-0 | 0-0 8 || 13:13:— 1-0 || Loose cumulo-stratus and cirro-cumulo-stratus ; haze or
45-3 |43-3 |2-0 |/0-0 |0-0 | 2 /13:13:—|| 4-0 || As before. © [stratus ? on hor. ©
46-2 | 43-9 | 2-3 ||0-0 |0-0 | 31 || 12:—-:— || 9-5 || Scud; cumulo-strati ; cirro-strati.
46-9 | 45-1 |1-8 |/0-1 |0-0 8 || 10,12:13:— 9-5 Misty scud on hor.; cir.-str. seud; cum.-str.; cir-cum-str.; foggy-
46-5 | 45-4 |1-1 || 0-1 |0-0 | 28 || 11:—:—]] 10-0 || Scud; cirro-strati, &c., as before.
45-7 | 44-7 |1-0 || 0-1 |0-1 5 || —:12:—]| 7-5 || Cir.-cum.-str.; cir.-str.; cum.-str.; cir.-str. ; cir. haze.
43-6 | 43-1 |0-5 || 0-0 |0-0 | 28 9-0 || As before.
42-5 | 42-1 |0-4 ||0-0 | 0-0 98 || Cirro-stratous scud ; cirro-cumulo-strati.
40-4 | 40-1 |0-3 || 0-0 | 0-0 0-5 || Cirro-cumulo-strati; slight fog on the ground. d
38-7 | 38-3 |0-4 || 0-0 |0-0 | 28 9-5 Id. ; GES col. lun. cor. }-
36-4 | 36-1 | 0-3 || 0-0 | 0-0 | 17 1-0 || Patches of cir.-str. ; rather thick fog, causing a colourless lun. cor. ))
33-3 | 33-0 |0-3 ||0-0 |0-0 | 17 || —: 8:— 2-5 || Cirro-cumulo-strati ; dense fog ; lunar corona. y
34-7 | 34-2 |0-5 |/0-0 |0-0 | 18 | 8:—:—|| 10-0 || Misty scud ; fog clearing off.
36-7 | 36-5 | 0-2 || 0-0 | 0-0 17 10-0 Thick mass. {lunar corona. }
36:8 | 36-5 |0-3 || 0-0 |0-0 S) pao Gb 3 6-0 Cir.-cum.-str. ; woolly cirri; stratus on hor.; mist on the ground;
34-9 | 34-7 |0-2 0-0 |0-0 | 2 || 4:—:—|} 9-0 || Misty scud; dense fog. }
35-4 | 35-0 | 0-4 | 0-0 |0-0 | 28 | —: 3:—| 9-0 || Cirro-cumulo-strati; foggy. >}
34-2 | 34-0 | 0-2 || 0-0 |0-0 | 17 9-5 || Scud ; dense mist.
35-7 | 35-3 | 0-4 || 0-0 | 0-0 2 3-0 Id.; woolly cirri.
; 35:6 | 35-5 | 0-1 || 0-0 | 0-0 | 20 3-0 Id.; bands of cirri stretching from N by E. toSby W.
é 36-4 | 36-2 |0-2 || 0-0 |0-0 | 16 |] 4:—-:— | 6.0 Id.; cirri. [like cirri.
; 37-6 | 37-2 |0-4 ||0-0 |0-1 | 18 SO) 1:8 Loose scud and cum., with cum.-str. on hor. ; woolly, linear, and flame-
43-0 | 42-6 |0-4 || 0-0 |0-0 | 30 1:—:—| 9-7 || Scud and loose cumuli; cirro-strati and cirri. (2)
46-0 | 44-9 |1-1 || 0-0 |0-0 0 1: 9-8 Id.
46-2 | 44-6 |1-6 ||0-3 |0-2} O | O:—:—] 2-5 Id. ; patches of cir.-cum.-str. ; cirri.
47-4 |45-0 |2-4 |/0-5 |0-3 | 31 || O:—:—]| 2-5 Id. ; id.
R 47-1 | 44-3 |2-8 || 0-4 |0-3 | 30 | 0:—-:—|| 9-5 || Loose cumuli; cirro-stratous scud; cirro-cum.-str. ©
46-7 | 44.2 |2-5 10-2 |0-2 | 30 || 0:—:—]) 7:5 Id. ; id. ; patches of cirri.
44-5 | 42-5 |2-0 ||0-2 |0-0 | 28 ||31:—:— || 2-5 as id.
| 42.9 | 41-1 |1-8 | 0-0 |0.0 | 26 || 0:—:—l|| 5-0 Td. ; id. y
t 40-2 |39-4 |0-8 ||0-0 | 0-0 | 26 0-2 || Cirro-cumulo-strati and cirro-strati. »)
4 38-2 | 37-8 |0-4 ||0-1 |0-0 | 20 0-2 || Cirro-strati and haze. »))
35-8 | 35-5 | 0-3 ||0-1 |0-0 | 16 0-2 Id. »))
36-2 |36-0 | 0-2 ||0-1 |0-0 | 17 2-0 || Cirro-cumulo-strati to SE. ; lunar corona. }-
y 34-4 | 34-0 |0-4 110-1 10-0 | 14 li_: 2:—]| 1-0 Id. ; haze on horizon. }
fle direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, S.=16, W.= 24. The
mons of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
_ {AG. AND MET. oBs. 1845, ae
;
‘i
13
14
Gott BARo-
ean METER
Time at 32°.
11 in.
12 11 || 29-500
12 508
13 || 29-518
14 526
15 531
16 546
17 557
18 571
19 581
20 601
21 628
22 646
23 656
0 661
1 665
2 663
3 665
4 680
by 693
6 TA
7 723
8 736
9 746
10 758
11 763
12 776
13 || 29-777
14 773
15 lis
16 776
17 778
18 783
19 798
20 800
21 809
22 808
93 815
0 804
1 789
D) 769
3 763
4 758
5 750
6 743
Wf 741
8 737
9 730
10 716
11 706
12 700
13 || 29-689
14 671
15 658
16 631
17 618
HovurLy METEOROLOGICAL OBSERVATIONS, NOVEMBER 12—14, 1845.
THERMOMETERS.
Dry. | Wet. | Diff.
34-1 | 33-8 -| 0-3
32-7 | 32-6 | 0-1
31-8 | 31-5 | 0-3
33-7 | 33-3 | 0-4
34-8 | 34-4 | 0-4
34-8 | 34-4 | 0-4
35-8 | 35-4 | 0-4
37-4 | 36-7 | 0-7
34-8 | 34:5 | 0-3
34-4 | 34-0 | 0.4
32-4 | 32-2 | 0-2
34-9 | 34-7 | 0-2
37-0 | 36-7 | 0-3
40-8 | 39-8 | 1-0
45-2 | 43-0 | 2-2
46-0 | 43-4 | 2-6
45:4 | 42-8 | 2-6
44-7 | 42-3, | 2.4
43-7 | 41-8 | 1-9
42:6 | 40-8 | 1-8
42-2 | 39-9 | 2-3
40:7 | 39-0 | 1-7
41-3 | 39-2 | 2-1
1-5
0-9
0-8
40-1 | 38-6
39-0 | 38-1
38-8 | 38-0
38-2 | 37-4 | 0-8
36-4 | 36-0 | 0-4
33-2 | 33-0 | 0-2
30-9 | 30-4 | 0-5
28-7 | 28-8 | ---
30-5 | 30-1 | 0-4
WIND.
Maximum
force in |fyrom
14,
10™
Clouds,
Se. : C.-s. :Ci.,
moving
from
pt. pt. pt.
|
ocoococe
|
—:27:28
—:19:—
Sky
clouded.
Species of Clouds and Meteorological Remarks
t
oo
Sky milky ; faintly coloured lunar corona,
Sky milky ; streaks of cir.-str. to N.; faintly coloured lunar
Thin cirro-cumulo-stratus ; lunar corona.
Id. ; faint lunar corona.
Id.
Cirro-cumulo-stratus.
Id.
Id.
Id.
des bank of cirro-strati to E.
Id. ; wild ducks flying west.
Id.
Id. ; cirro-strati.
Cir.-cum.-str. ; scud and loose cum. to W.; cite
Scud and loose cumuli ; cirro-strati ; haze on hori
td. ; Id: 5 ide
Scud ; dense mass of cirro-stratus.
Id. ; id.
Id.; cumulo-strati.
Thick cirro-cumulo-strati.
Td.
ds; a few drops of fine
Id.
Id.
Id.
Id.
Thick cirro-cumulo-strati ; moon eclipsed.
Loose cirro-cumulo-strati.
Cirro-cumulo-strati on horizon.
Idd patches of cirri.
Cirro-cumuli and cirro-strati. 4
Cirro-cumulo-strati.
Id.
Id.
Td. woolly cirri. (cir, haze on
Woolly cir. rad. from NNW. ; cir.-cum.-str. ; cir.-str.; cum-
Woolly cirri; cirro-cum.-str. ; cir.- haze ; solar ]
Cirro-cumulo-strati ; woolly cirri; cirrous haze.
Id.; cir.-cum. ; thin cir.-strati ; cirri and cirrous
As before. 8 [str. to E. ; cir-str
Cir.-cum.-str., with ragged and mottled cir. scud forming bi
Nearly as before ; clouds rather denser.
1G Bye foggy to E. j
Cirro-cumulo-strati ; cirro-strati.
Loose cirro-cumulo-strati; slight fog on the grout
Ilys id. 3
Id.
Cirro-cumulo-strati. !
Id. ; haze. Wl
Clear. ‘
y
Cirro-cumulo-strati to W.
Id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.=8,S.= 16, W. = 24, The
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
HovurLy METEOROLOGICAL OBSERVATIONS, NovEMBER 14—17, 1845.
THERMOMETERS.
5
&
|
isl
EI
Dry. | Wet. | Diff.
30-5
31-2
32-6
35-3
35-3
38-7
142-3
44-3
45:8
46-7
46-0
45-6
46-1
46-4
47-2
46-7
47-2
46-9
46-9
°
Re a a ae ae
30-6
30-7
31-5
34:3
35:0
37-7
40-6
42-4
43-4
44-0
44-0
44-0
44-6
44-6
45-4
45-2
46-5
45-9
45-9
46-8
48-7
42-2
40:8
40-1
41:1
40-6
40:8
41-0
40-9
41-1
41-2
41-8
41-5
42-0
41-7
41-5
41-8
40-4
39-6
38-2
37:3
35:5
36-6
36-7
36-8
wee ew nse
i)
©
—_
ROUND Sts ea a ee OS ea ee ee RON a Oe Se
BAU IHAGAD Qh SCONMHHADONKROSCNSWORG:
36-3
35-8
33:8
34:3
34-7
35-9
36:5
36-9
37:8
38-6
EP
?
WIND.
Maximum
force in From
1, |10™,
lbs. | lbs. pt.
0-1 |0-0 | 31
0-0 | 0-0
0-0 |:0-0 4
0-1 |0-3 | 18
0-1 |0-0 | 30
0-2 | 0-3 | 16
1-1 |0-4 | 18
0-6 |0-2 | 17
0-7 |0-7 | 18
1-6 |0-7 | 18
0-9'|0-8 | 17
0-6 |0-2 | 16
0-3.|0-5 | 17
0:9:/0-9 | 18
1-8 |0-9 | 17
0-9 |0-8 | 18
0-9 |0-8 | 18
0-4 |/0-1 | 18
0-2 |0-2 | 18
0-3 | 0-0 9
2-9 /1-5 | 10
3-1 |0-4 | 17
1 ce
1-3 |0-5 | 18
0-7 |0-8 | 18
0-7 |0-4 | 19
0-6 |0-2 | 19
0-4 |0-1 | 19
0-2 |0-1 | 20
0-4 |0-3 | 22
0-5 |0-4 | 22
0-4 | 1-0 | 26
0-8 |0-4 | 27
2-4 |2.2 | 27
1-6 |0-9 | 24
1-1 |0-7 | 22
0-7 |1-0 | 24
1-9 |0-7 | 23
1-6 | 1-2 | 23
1-9 |1-1 | 22
1-0 |0-4 | 21
0-5 |0-2 | 20
0-2 |0-2 | 20
0-8 |0-2 | 20
0-7 |0-2 | 18
0-3 |0-4 | 17
0-4 |0-2 | 26
0-0 |0-0 | 28
0-0 |0-0 | 12
0-0 |0-:0 | 10
0-0 | 0-0 2
0-0: | 0-0 4
0-0 | 0-0 2
0-1 | 0-0 4
0-0 |0-0
Clouds,
Se. : C.-s.:Ci.,
moving
from
216:
11:—:—
17 :—:—
Sky
clouded.
10-0
10-0
jhe direction of the wind is indicated by the number of the point of the compass, reckoning N.— 0, H.=8,S.=16,W.=24. The
255
Species of Clouds and Meteorological Remarks.
Yow Hlienaeetn renner Ls
Cirro-cumulo-strati to W.; cirro-strati and haze.
Cirro-cumulo-strati; cirro-strati.
id. ;
id.
slight fog.
OO
Seud; dense cirro-stratus and haze.
Patches of scud ; cirro-stratus.
Scud ; dense cirro-stratus.
Loose seud ; cirro-strati; rain?”
Thick scud; cirro-strati; rain”?
Td.
des
dts
H cirro-strati.
>
Ilse
2
b]
id.
Tek ;
Id. ;
Id. ;
Seud; cir. mass; rain'. Sunday—Overcast, nearly as at
Scud ; cirrous mass. [2 throughout the day.
.; Slight drizzle.
; id.
Seud. [corona ; cir.-cum. to S. }-
Loose scud, moving rapidly & producing a coloured lunar
Loose cirro-stratous scud ; coloured lunar corona. >
Scud ; cirro-strati. =
Td. ; id. ; lunar corona. y
Id. ; id.
Id. ; id. at 10™; rain®?
Loose scud ; dense mass of cirro-stratus.
Dense mass of cirro-stratus.
Scud ; sheets of cirro-strati; sky looking wild.
Patches of scud ; cirro-stratous scud ; cirro-strati.
Id. ; woolly cirro-strati ; sheets of cir.-str.
Scud ; id. ; id.
Cirro-stratous scud ; sheets of cirro-strati.
Tal: id.
iel 5 dense mass of wavy cirro-strati.
Sheets of cirro-strati ; thin cirri to W.
Scud and cirro-strati on horizon.
Cirro-strati on horizon; aurora.
Patch of cir.-str. to NE.; auroral arch 12° altitude. )
Woolly cirri scattered over the sky; faint aurora. _)
Streaks of cirrus ; aurora occasionally.
Band of woolly cirri lying from NW. to SE.; faint
Streaks of cirri. ») [auroral light. )
Streaks of cirri lying from H. to W. »)
Cirri and cirrous haze ; lunar halo. »))
Sky nearly covered with cir. haze ; faint lunar halo ; large lun. cor. ))
Dense cirrous mas. )
Scud ; slight drizzle. )
Id. ; rain!
Rain!
Rain? [visible two miles off to E.
Patches of secud; dense cir. mass; rain”; objects in-
Loose scud in patches ; dense cirro-stratus.
njions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Tov. 174 02,
‘bids, with a light blue between, somewhat like diffraction spectra.
Woolly cirro-strati moving quickest, and as it approaches the sun, exhibiting a beautifully coloured corona of two pinkish
256
a
B
®
—
Nop
oo sy
OONANKRWNHWRH OW:
729
Hovurty METEOROLOGICAL OBSERVATIONS, NOVEMBER 17—20, 1845.
THERMOMETERS. | WIND.
Clouds,
: C.-s. :Ci.,
moving
from
|| Maximum
Dry. | Wet. | Diff. force in
pt. pt.
40-2
41-1
43-2
44-2
46-0
45-4
44-8
43-8
44-0
45-2
45-6
43-9
44-1
40-7
OWNNOrYKD
bo bo bo DOK Ree =
WORN HONDO DW
RE OEP SOP EEE HOOF PWN wr wr
DPOOUM MEAD HOWONTA ADSAWND
38:8
Sky
clouded.
Species of Clouds and Meteorological Remarks,
Dense, nearly homogeneous, mass of cir.-str. ; Scoteh
As before.
Seud; dense cirro-stratus.
Thick seud.
Seud; cirro-strati; portion of a rainbow.
Id.; woolly cirri.
Id.; cirro-strati.
id.
id.
dark.
Clouds on horizon.
Id.
Thin cirro-cumulo-stratus.
Scud and thin cirro-stratus.
round horizon.
Scud and dense cirro-stratus.
Id.
Td. ; rain?’
Seud ; cirro-stratus ; drops of fine rain.
ids i id.
des rain!
IIGh& rain®—>
Nearly homogeneous ; rain!
Cirro-stratus ; masses of scud; sky to W.
Scud and loose ecumuli.
dey; cirro-strati.
Loose scud ; loose cumuli; cirro-strati; cirri.
td? thick woolly cirro-stratus.
As before, with nimbi; rain to S.; sky wild-lik
Loose cumuli; cumuli; cirri-strati ; woolly cirri,
Seud ; thick woolly cir.-str.; woolly cir.-cum.; n
Scud ; cirro-stratus ; cirri; sky looking wild.
Toe ides rain’5-1
Ids: id. cirrous haze; stars dim.
Dark ; rain?
Id.; rain?—* at intervals.
Seud ; cirrous haze? rain! at intervals.
Loose scud ; shower?
Seud ; cirro-strati.
Seud ; cirro-strati.
id: drops of rain.
Scud ; cir. and cir. haze; drops of rain ; lunar corol
Ife id.
ence masses of scud to S. and SE. ; thin loose ci
Seud ; cirro-strati. [cirri ; faint lunar cor
Gimre cteatous scud; sheets of cirro-strati ; woo
1G he cirro-strati ;
Scud and cirro-stratous scud ; cirri.
Id. ;
As before.
Thin scud ; loose-edged cum. to S. ; woolly cir.
Scud and dark cumuli; woolly cirri; cirro-strati.
Seud ; cumuli; nimbi and cirro-strati on horizon.
Scud near horizon.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, 8S. = 16, W.= 24.
motions of the three strata of clouds, Sc. (scud), C
.s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Hovurty METEOROLOGICAL OBSERVATIONS, NOVEMBER 20—22, 1845. 257
THERMOMETERS. WIND. Glonds,
ARO- : ‘ er
i Maximum Bae oh pele Species of Clouds and Meteorological Remarks.
at 32°. || Dry. | Wet. | Diff. force in | From fr id < ‘
15, |10™.
ans ° ° ° || ibs. | Ibs. | pt. || pt. pt. pt. || O—10.
|| 28-763 || 39-9 |37-9 | 2-0 ||0-7 |0-3 | 21 0-5 || Scud near horizon.
777 || 40-7 | 38-3 | 2-4 ||0-8 |0-6 | 20 6-0 || Thin seud.
809 | 41-1 | 38-6 | 2-5 || 0-7 | 0-5 | 20 5:0 Id.; a vivid glare of lightning seen.
850 || 39-8 | 37-7 | 2-1 ||0-3 | 0-3 | 18 3-0 Td.
868 || 40-5 | 38-2 |1-3 || 1-2 | 1-1 | 20 2:0 || Cirro-strati on horizon.
897 || 40-0 | 37-8 | 2-2 || 1-8 | 1-0 | 20 0-5 || Thin seud and cirro-strati.
28-926 || 39-9 | 37-7 | 2-2 || 1-1 | 0-4 | 20 3:0 || Thin scud and cirro-strati; lunar corona.
t 951 || 38-7 | 37-2 | 1-5 || 1-5 | 0-4 | 20 2:5 || Cirro-strati and woolly cirri ; id.
959 || 37-6 | 36-0 | 1-6 || 0-5 | 0-4 | 21 || 24:—:— 3-0 |) Thin scud ; thick woolly cirri; id.
963 || 39-0 |37-3 |1-7 || 1-2 |0-8 | 21 || 24:—:—]| 2:5 ligl 2 es coloured lunar corona. }-
985 || 38-7 | 36-9 | 1-8 || 0-2 |0-1 | 22 6:0 || Thick woolly cirri; cirro-strati; lunar halo and cor. }-
28-996 || 38-9 | 37-0 | 1-9 ||0-2 |0-2 | 21 6:0 || As before. } [halo and corona. }-
29-018 || 38-7 | 36-8 | 1-9 || 0-4 |0-3 | 20 3-0 || Cir.-str. on hor.: thin haze over the sky ; faint lunar
054 || 37-0 | 35-7 | 1-3 ||0-6 |0-1 | 19 4-0 Cirro-strati, cirri, and cir. haze ; masses of scud : clouds red to SE. ))
071 || 37-5 | 36-2 | 1-3 ||0-3 |0-6 | 20 || —:—:16 9-5 Cirri and thin cirro-strati dispersed across the sky; scud on hor. }+
083 || 39-4 |37-8 | 1-6 || 0-6 |0-8 | 20 || —:20;— 9-8 || Cirro-strati and haze becoming thicker ; a few patches of scud.
108 || 40-7 | 38-4 | 2-3 || 0-4 |0-2 | 19 10-0 Id.
125 || 41-3 | 39-3 |2-0 ||0-5 |0-2 | 20 || —:20:— 9-8 || Cirro-strati; cirrous haze; cirro-cumulo-strati.
125 || 42-6 | 40-1 | 2-5 || 0-4 [0-2 20 || 24:20:— 9-8 || Masses of scud ; cirro-strati; woolly cirri. 8
122 || 43-1 | 40-6 |2-5 ||0-7 [0-3 | 20 9-0 Id. ; Ten id, (2)
138 |) 44-2 | 40-7 |3-5 ||0-7 |0-1 | 20 || 25:—:—}| 2-5. || Patches of seud; woolly cirri. (0)
152 || 39-6 | 37-9 |1-7 ||0-2 |0-0 | 18 |}25:—:— 1-0 ies id; cirro-strati. ©
164 || 36-0 | 35-0 |1-0 |/0-1 |0-0 | 20 1-5 || Scud and cirro-strati on horizon.
177 || 35-2 |34-0 |1-2 || 0-1 |0-1 | 20 0:5 Id.
189 || 34-2 | 32-8 |1-4 ||0-1 | 0-1 | 28 0-2 Id.
207 || 34-7 | 33-3 | 1-4 || 0-1 |0-2 | 20 0-2 || Clear; haze on horizon.
} «=. 224 || 33-7 | 32-5 | 1-2 || 0-2 | 0-1 | 20 0-0 Id.
| 216 || 33-9 | 32-8 |1-1 |/0-1 |0-1 | 21 0-0 Id.
|| 231 || 33-3 | 32-2 |1-1 10-3 |0-1 | 19 0-2 || Streaks of cirro-stratus to N.
| 233 || 34-3 | 32-8 |1-5 ||0-3 |0-2 | 19 0-2 Id. »»)
|| 29-238 || 31-9 | 30-9 | 1-0 || 0-3 | 0-0 0-2 || Streaks of cirro-stratus to N. y
4] 239 || 29-6 | 29-0 |0-6 || 0-1 |0-1 | 28 0.2 Id. to NE and SE. y
: 237 || 32-0 | 31-0 | 1-0 || 0-2 |0-3 | 19 0-8 || Cirro-stratus ; cirri. y
245 ||30-6 | 30-0 |0-6 || 0-3 | 0-0 | 18 0-8 IIGIRE id. y
| 251 || 32-8 | 31-8 |1-0 || 0-2 | 0-1 | 20 0-8 || Cirri to S. »)
i) ©6252 || 31-2 | 30-5 |0-7 | 0-1 | 0-1 | 19 0:5 Id.; very clear throughout the night. »))
; ! 1 270 ||31-5 | 30-6 |0-9 || 0-1 |0-1 | 20 0-5 || Thin seud, cirri, cir.-str., and patches of scud on hor. )
_ 270 || 33-3 | 32-1 | 1-2 ||0-2 |0-1 | 18 3 0-7 || Cirri, cirro-strati, and patches of scud on hor. »))
2 289 || 32-4 | 31-6 |0-8 ||0-2 |0-1 | 16 1:0 Id., id., id. ©
2!) 307 || 33-0 | 32-2 |0-8 || 0-1 | 0-2 | 20 1-7 Wh Tah® | Sak, id. 0)
: 5 318 || 36-6 | 35-2 | 1-4 ||0-2 |0-1 | 21 2.5 Id., id., id. ; scud on Cheviot. ©
( 325 || 39-3 | 36-7 | 2-6 || 0-3 | 0-1 | 21 3-0 liek, ide, id. 0)
qv 329 || 40-7 |37-7 | 3-0 || 0-2 |0.1 | 22 1-0 || Thick woolly cirri; cirrous haze; scud on Cheviot. ©
: 344 || 41-3 | 38-3 |3-0 ||0-3 |0-1 | 22 2:0 dies id.; cir.-str.; id. ©
a 346 || 41-4 | 38-0 | 3-4 | 0-2 | 0-2 | 21 |} —:—: 4 3-0 lle id. ; id. ; id. ©
WA 355 || 39-7 | 37-0 | 2-7 || 0-3 | 0-1 | 22 | 5-0 Id.; id. ; id.; cum.-str. (0)
; : 374 |\37-5 | 35-7 |1-8 || 0-1 |0-1 | 22 1:0 || Cirro-strati, cirri, and cirrous haze on horizon.
“| 397 || 35-0 | 33-6 | 1-4 || 0-1 |0-0 | 24 1-5 likes id., id.
4 417 || 36-2 | 34-3 |1-9 ||0-1 |0-0 | 26 9-5 Id., id., id.
e 435 || 37-9 | 35-7 | 2-2 ||0-2 | 0-2 | 29 10-0 || Cirro-stratus ?
g 456 || 38-5 | 36-2 | 2-3 ||0-2 |0-1 | 28 10-0 Id.
: ( 473 || 38-0 | 35-9 |2-1 || 0-1 |0-1 | 28 10-0 || Thin cirro-stratus; a few stars dimly visible.
4 492 || 36-8 |35-0 |1-8 | 0-1 |0-1 | 27 4-0 || Thin cirro-stratus and cirrous haze.
lL 515 || 35-5 | 33-7 |1-8 ||0-1 |0-0 | 26 1-5 || Cirro-strati.
a 29.662 || 34-6 |32-0 | 2-6 || 0-4 |0-0 | 22 1:0 Sheets of cirri and cirro-strati; a slight covering of snow on Cheviot.
et
_ T> direction of the wind is indicated by the number of the point of the compass, reckoning N.—0, H.=8,8S.=16, W.= 24. The
notins of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
$44 . 204 21. Observation made at 215 5m,
MAG. AND MET. oss. 1845. 3 T
a
1
2
3
4
B) 835 || 33-0
6 832 || 32-7
rf
8
9 780 || 34-7
10 736 || 34:8
11 694 || 36:8
12 668 || 37-3
13 || 29-609 || 38-8
14 546 || 39-7
15 510 || 40-8
16 476 || 41-2
17 447 || 43-0
18 443 || 46-4
19 446 || 45-3
20 471 || 42-7
21 480 |) 41-1
92 486 || 42-5
23 500 || 44-0
5 0 490 || 44-7
1 477 || 45-0
D) 474 || 45-3
3 472 || 45-0
4 | 472 || 44.7
5 478 || 44-3
6
7
8
463 || 45:3
442 || 45-7
406 || 46-5
9 369 || 47-1
10 339 || 47-9
11 295 || 48-1
12 247 || 48-6
13 || 29-217 || 49-4
14 186 || 49-8
15 166 || 50-2
16 149 || 50-5
17 114 || 51-3
18 119 || 53-5
19 111 || 54-7
20 132 || 54-9
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, S.=16, W.= 24,
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 3
Wet.
THERMOMETERS.
Diff.
wwe pore
wWwds eS eee Joa? [OV TS TV Pe PNY RO} OPS) 1) VS
DOH AHHH ANH OHaWHETHHhOKRGUOLGOYW
a
—_
WIND.
Maximum
force in
ya. | 10™.
0-2 | 0-0
0-1
en NO NONE ON ey
i=)
—
oo9000
coo rFrryKee ee
Www SO=S
From
Clouds,
Se.: C.-s.: Ci.,
moving
from
pt. pt. pt.
—:—:30
—:—:30
—:—:31
2 =
25 = — : —
24 :——-——
24 :—:—
24 :—:;—
23 :—:26
22
23
2426 2 ——
23 :—:—
24:—:—
| 24:—:—
Hourty METEOROLOGICAL OBSERVATIONS, NOVEMBER 23—25, 1845.
Sk
y
clouded.
Cirri and cirro-str. near hor. ; cum.-str. in haze
has 1. 3 woolly cirri.
Smoky scud ; cirro-stratous scud ; woolly cirri.
Id. ; ade; drops of rain
Scud ; cirrous mass ; rain”?
lids 5 id. ; id.
Id. ; id. ; Jupiter seen dimly.
Id. ; id. ; id.
fd: id.
1S ol. 2 very slight drizzle.
Hales id. ; id.
Seud.; cirrous mass; very slight drizzle.
ice 1d: id.
Dark; slight drizzle.
Rain??
Seud ; cirro-stratus.
Scud.
Id.; cirri.
Species of Clouds and Meteorological Remarks.
Scud ; rain®?
Id.
Bank of clouds on SE. horizon
Seud and eirro-strati.
Cirro-strati on E. horizon.
Id.
Id.
Cirri and cirro-strati. ) [to E.; lineare
Homogeneous woolly cirri ; loose cum.-str, ;
Woolly cirri; cirro-cumuli ; cirro-strati.
Isles cirrous haze ; cumulo-strati on E,
Tdi. 2 To We id.
As before. © [hori
Sheets of mottled cir. and cir.-str. ; cum.-str. low
Mottled and woolly cirri and cirro-strati.
Cirro-stratus becoming thicker, radiating from N
Cirro-stratus.
Id. ; very dark
Td; id.
Tdi. id.
Td; id.
Tals id.
Id. 2 id.
Cirro-stratus ? very dark.
Id. ? id.
Id. ? id.
Td. 2 id.; rain
Rain?
Seud and cirro-stratus ; fine rain?”
Seud and cirro-stratus.
Loose scud ; cirro-strati; cirri; scud on Cheyi
Seud ; cirro-strati on E. horizon.
Id.; cirro-strati; rainbow.
lies ils rain?
Ike td. 3 scud on Cheviot.
Id.; thick woolly cirri; cirro-str. ; scud on ©)
Id.; cirro-strati; scud on Cheviot.
Id. ; cirro-cumulo-strati.
Nov. 234 20%. Vane of anemometer found frozen up.
Nov. 24¢ 4%, The cirri and cirro-stratus, radiating from N by W. and S by E., and having transverse bars.
i i ee ae
THERMOMETERS. WIND.
Maximum
Dry. | Wet. | Difr.|| force in |From
14, ; 102.
JZ in. G g ° Ibs. | Ibs. | pt.
Sel || 29-135 || 54-8 | 50-4 | 4.4 13-3 |3-7 | 21
2 150 || 54-7 | 50-8 | 3-9 || 2-7 | 1-4 | 23
3 141 || 55-0 | 51-1 |3-9 |11-8 | 1-0 | 21
an) 150 ||52-0 | 49-4 |2-6 | 1-3 |0-4 | 25
l 139 ||54-6 | 51-2 |3-4 |] 1-1 | 2-2 | 20
2 145 || 54-3 | 50-3 |4-0 || 2-4 | 1-6 | 20
3 134 ||53-8 | 49-7 | 4-1 || 2-1 | 2-0 | 20
4 146 | 52-0 | 49-0 | 3-0 || 1-3 | 2-1 | 20
5 146 || 51-4 | 48-3 | 3-1 |} 1-1 |1-7 | 21
128 || 51-4 | 48-4 {3-0 11-5 |1-3 | 20
7 143 || 52-5 | 49.2 |3-3 | 2-8 | 1-3 | 19
3 131 ||52-6 | 49-1 |3-5 || 2-1 |2-9 | 20
p) 136 ||53-1 | 49-0 | 4-1 || 3-2 | 2-1 | 20
p 134 ||53-1 | 49-0 | 4-1 ||4-3 | 2-3 | 21
150 ||51-3 |46-9 | 4-4 | 4.6 | 2-2 | 22
2 164 ||51-5 | 46-7 |4-8 | 3-2 | 2-8 | 22
3 || 29-208 || 51-1 | 46-0 | 5-1 || 6-2 | 2-8 | 21
226 ||50-7 | 46-2 | 4-5 ||3-7 | 2.8 | 22
5 253 || 49-2 | 44.9 |4.3 |/2-8 |1-5 | 21
6 261 || 49-3 | 45-1 | 4-2 || 2-0 |3-0 | 21
282 || 48-3 | 44-7 |3-6 || 2-5 |0-7 | 21
8 321 || 48-4 | 44-2 | 4.2 | 1-7 |1-3 | 22
g 339 ||48-5 | 44-5 |4-0 | 1-0 |0-0 | 20
0 342 || 47-0 | 43-7 |3.3 |/0-3 |0-2 | 18
1 350 || 47-9 | 46-8 | 1-1 0-9 | 0-3 | 18
9 357 || 48-7 | 46.3 | 2.4 |/0-8 | 1-3 | 19
3 368 || 49-0 | 45-6 |3-4 || 1-2 |0-5 | 19
D|| 377 ||50-2 | 46-3 | 3-9 || 1-4 |0-3 | 21
1} 370 | 49-4 | 46-5 |2-9 | 0-4 |0-1 | 19
2 371 || 48-1 | 46-4 |1-7 ||0-2 |0-1 | 18
3), 356 || 47-6 | 46-7 |0.9 ||0-3 |0-1 | 18
4\) 354 || 47-4 | 46-5 |0-9 ||0-2 |0-0 | 20
5|| 330 | 47-4 | 46-6 |0-8 | 0-2 | 0-2 | 21
16) 319 || 50-3 | 48.4 | 1-9 || 2-2 | 2.0 | 20
7 313 || 50-8 | 48-2 |2-6 || 2-7 | 2-0 | 20
j8}} 304 ||50.7 | 48-3 |2-4 2-9 | 1-8 | 20
19) 314 || 50-8 | 48-2 |2-6 ||2-0 |1-5 | 21
0 316 || 50-6 | 47-9 | 2-7 || 1-6 |0-8 | 21
1 313 || 50-2 |47-7 |2-5 || 1-1 |0-9 | 21
2} 6-312 | 50-1 | 47-5 | 2-6 | 1-3 |0-7 | 20
3} 29-312 || 49.7 | 47-3 | 2.4 11-3 |0-6 | 21
4 306 ||49-6 | 47-3 | 2-3 |}1-0 |0-6 | 19
5} 305 || 49-6 | 47-1 | 2.5 || 1-4 10-6 | 19
6 300 || 49-2 | 46-4 | 2-8 || 1-0 [0-4 | 19
7| 284 ||48-3 |45-9 | 2-4 1-4 |0-4 | 19
{3 274 || 47-0 | 45-2 |1-8 ||0-3 |0-3 | 18
9] 266 147-5 | 45-6 |1-9 10-4 |0-1 | 18
0} 251 || 46.9 | 44.8 | 2.1 10-4 |0-1 | 18
3% 255 || 46-8 | 45-5 |1-3 | 0-7 |0-3 | 18
2 249 ||47-0 | 45-7 | 1-3 0-3 |0-1 | 16
3|| 237 ||48-0 | 46-8 | 1-2 |/0-1 |0-0 | 16
80 214 || 48-4 | 46-8 |1-6 | 0-2 |0-1 | 16
1 194 ||48-5 |46-8 |1-7 10-6 |0-3 | 16
2 168 || 49-3 | 47-1 | 2-2 |10-5 |0-3 | 16
3 149 || 49-4 |46-9 | 2-5 ||0-8 |0-4 | 17
4\| 127 ||48-7 | 46-4 | 2-3 10-5 |0-4 | 17
Clouds,
Se. : C.-s.: Ci.,
moving
from
Sky
clouded.
Hourty METEOROLOGICAL OBSERVATIONS, NOVEMBER 25—28, 1845. 259
Species of Clouds and Meteorological Remarks.
Seud ; cirro-strati.
Id. ; ade) § drops of rain.
Id.; cirrous mass.
Id. ; id. ; rain?”
Id.; cirro-strati. [rain?®
Loose scud ; nearly homogeneous mass of cir.-cum.-str. ;
As before.
Loose scud; dense mass of cirro-stratus.
Id. ; aca rain”?
Seud and cirro-stratus.
Scud.
Id.; 11" 35™, a flash of lightning on NE. horizon.
Scud on horizon.
Scud on horizon.
Scud.
Id.; a few drops of rain.
Scud and cirro-stratus.
Smoky seud; hazy cirro-stratus ; cirro-cumuli.
Seud. (=)
Cir.-cum.-str. ; scud near hor. ; portion of a rainbow.
Masses of seud ; cir.-cum.-st1. & loose cir,-str. ; portion of a rainbow.
Seud; dense cirro-stratus ; drops of rain.
Id. ; 1d. slight drizzle.
lige rel = id.
Loose scud ; cirro-stratus ; id.
Seud; drizzling rain”?
Id.
Id.
Id.
Id.
Id.; clouds broken.
Id.; cirrous clouds ?
dy; id.
Scud; cirrous clouds ; clouds broken to S.
Tals; id. id.
Helse id
lide; id
Nol = id
Cirro-strati; cirrous haze ?
Scud and cirro-strati.
Id.; cirrous haze.
Id.; dense homogeneous cirro-stratus ; rain’?
lil; & id.
Id. ; id
dees id. ; rain”?
els = id. ; id.
Loose scud; cir.-str.scud; sheets of cir.-str.; scud lying
Scud ; masses of cirro-stratus. [on Cheviot.
HCE id.
he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.= 8, S.=16,W.= 24. 'he
iitions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
260 Hovurty METEOROLOGICAL OBSERVATIONS, NOVEMBER 28—DECEMBER 1, 1845.
| THERMOMETERS. WIND. Cine
Bete a ees : Se.: C.-8: Ci! Sky
Mean METER Maximum moving 4 lguaen: Species of Clouds and Meteorological Remarks,
Time. | at 32°. Dry. | Wet. | Diff. force in |Pyom feoiii
14, | 10™.
@ lt6 Ih in. : g. 2 lbs. | Ibs. pt. pt. pt. pt. 0—10.
8 5 || 29-115 ||48-7 |46-5 | 2-2 | 0-4 |0-1 | 17 10-0 || Scud; masses of cirro-stratus.
6 108 || 48-3 |45-9 | 2-4 | 0-6 |0-4 | 16 10-0 licks id.
7 |i 103 || 48-4 | 46-2 | 2-2 ||0-6 |0-3 | 16 10-0 Ndss id.
8 || 101 ||49-1 |46-5 | 2-6 ||0-8 |0-7 | 16 10-0 Ifslge id.
9 084 || 48-6 |46-0 | 2-6 || 0-6 | 0-7 | 16 10-0 Tide: id.
10 067 || 48-2 | 45-9 | 2-3 || 1-4 |0-5 | 16 10-0 lige id.
11 047 || 49-3 | 46-3 | 3-0 || 2-2 | 1-5 | 16 10-0 Id.
12 | 044 ||49-2 | 46-6 | 2-6 | 2.4 |1-8 | 17 9-8 || Id.; passing showers.
13 || 29-056 || 46-3 | 43-2 | 3-1 || 2-2 |0-6 | 18 2-5 || Clear
14 045 || 44-3 | 42-2 | 2-1 || 1-0 |0-2 | 16 0-0 Td.
15 || 29-020 || 44-3 | 41-8 | 2-5 | 1-0 |0-5 | 16 } 0-0 || Ta. [shower at 16"
16 || 28-977 || 44-4 | 41-6 | 2-8 || 2-0 |2-2 | 16 0-0 Id.; a few drops of rain; no clouds visible; ah
17 954 ||44-6 | 42-5 | 2-1 || 3-9 | 2-0 | 17 3-5 || Seud.
18 937 ||45-0 | 42-3 | 2-7 || 7-6 |5-7 | 17 8-0 Id.
19 960 || 44-1 | 41-3 | 2-8 ||8-3 | 2-0 | 19 2-5 Td.
20 || 28-986 || 43-9 | 41-4 | 2-5 || 2-1 |1-4 | 18 ||} 290:—:—]} 9-8 Id.; drops of rain.
21 || 29-036 || 43-2 | 41-2 | 2-0 || 3-7 |2-3 | 19 || 91:_-:— ]] 9-5 Id. ; cirro-stratus.
22 097 ||45-0 | 42-2 | 2-8 || 3-9 | 2-4 | 19 ||93:24:—]] 9-0 Id.; woolly cirro-strati ; linear cirri.
93 || 185 ||46-3 |41-9 |4-4 | 3-8 13-5 | 20 |/o4:—:—| 9-2 || 1a; id. ; id. © jtion ofl
29 0 966 || 47-0 | 41-8 |5-2 || 2-5 |1-7 | 21 ||94-__- 91 8:0 Id.; little flocks of wo. cir.; linear cir. dispersed oyer the sky
1 286 ||/46-3 | 42-1 | 4-2 | 2-1 |0-9 | 21 || 23:—:21]| 7-0 || Patches of seud; woolly cirri; haze.
2 312 ||45-6 | 40-7 |4-9 || 1-5 | 1-2 | 21 |} 93:—-:21 8-0 || Cumulous scud ; cirri; cirro-strati.
3 324 || 43.4 | 40-4 | 3-0 | 2-0 |1-2 | 18 | 93 :—: 91 8-0 || Scud; woolly cirri; cumuli; cirro-strati.
4 339 || 42-7 | 38-7 | 4-0 | 1-8 | 1-0 | 20 || —:—:21]| 6-5 || Woolly cirri radiating from SW. and NE.; she
5 351 || 41-3 | 38-9 | 2-4 | 1-4 |0-8 | 19 | 292:—:— || 1-5 || Patches of seud; woolly cirro-strati. [cir.-
6 375 || 40-1 | 38-0 | 2-1 || 0-3 |0-3 | 21 1-0 ae: id.
Zl 377 || 38-7 | 36-9 | 1-8 ||}0-4 |0-2 | 17 0:5 || Clouds on E. horizon.
8 382 || 38-6 | 36-7 |1-9 ||0-8 |0-1 | 20 0-2 || Clear; a patch or two of cloud to E.
9 376 || 38-1 | 36-4 | 1-7 || 0-6 |0-8 | 21 0-0 Id.
10 376 || 37-7 | 36-1 | 1-6 || 0-5 |0-7 | 20 0-3 || Masses of scud to S.
11 381 || 37-8 | 36-2 | 1-6 ||0-2 |0-1 | 22 0-5 || Clouds on E. horizon.
12 371 || 36-7 | 35-4 | 1-3 ||0-2 |0-1 | 22 0-2 Id. i
23 29.481 || 38.6 | 37-4 | 1-2 || 1-0 |0-2 | 20 || —:24:—]| ....-. ve eitro-straims ; ‘patches of send a
morning. v.M., curled cirri and cirro-strati.
30 13 || 29-047 || 48-1 |46-6 | 1-5 || 8-5 | 2-4 | 18 10-0 || Scud and cirrous clouds? rain”?
14 012 || 48-5 | 47-3 | 1-2 || 3-7 |1-9 | 19 10-0 des rain?” [at inter
15 047 || 46-3 | 44.2 |2-1 |} 2-9 | 1-1 | 20 10-0 Td. ; very dark; rain’, showe
16 058 || 44-7 | 42.3 | 2-4 || 1-1 | 1-6 | 20 2-0 || Cirrous scud 2 h:
(7 098 || 41-5 | 38-9 | 2-6 || 3-4 |1-7 | 20 0-8 Id
18 135 || 38-6 | 37-2 |1-4 || 1-9 |0-3 | 20 9-2 || Seud
19 157 || 40-6 | 37-8 | 2-8 || 2-4 |1-0 | 20 9-0 Id.
20 170 || 37-7 |35-5 | 2-2 || 2-1 |0-6 | 21 0-2 || Scud lying on Cheviot; streaks of cirri to E.
21 171 || 37-9 | 36-0 | 1-9 |) 1-6 | 1-5 | 19 | 23:—:—|} 1-5 || Scud; atmosphere hazy.
22 179 || 38-9 | 36-9 | 2-0 || 2.4 |2-8 | 18 || 92:—:— | 6-0 Id.
728) 182 ||/41-5 | 38-4 |3-1 || 3-0 |3-2 | 21 | 22:—:22] 4.0 Id.; woolly and mottled cirri.
i Ol 177 || 42:3 | 38-4 | 3-9 || 3-7 |3-3 | 19 || 22:—-:—|| 9-0 || Scud and loose cumuli; cum. ; cir.-str.; cirrous h
1| 178 || 42-0 | 38-3 | 3-7 || 3-7 | 2-2 | 20 | 22:—-:—|| 6-0 || Seud; cumuli; cirro-strati. (0) [sh
21 182 || 41-2 | 38-9 | 2-3 | 3-2 |2-7 | 21 | 22:—:24|| 7-0 || Scud; thick woolly cirri; cum. ; cirrous haze; f
3 || 198 || 43-0 | 39-2 | 3-8 || 5-0 | 2-8 | 20 | 22:—-:—]| 9.5 Id.; rain falling to NE. and W.; stormy-like.
4 | 215 |/40-5 | 38-2 | 2-3 | 3-0 {1-8 | 19 || —:23:—)|| 2-5 || Cirro-stratus; smoky scud on S. horizon. e
5 244 || 38-6 | 36-7 | 1-9 | 2-5 | 1-1 | 20 | 23:—:—J] 6-0 || Scud; loose watery cirro-stratus ; drops of rain. —
6 || 266 || 38-2 | 36-4 | 1-8 || 3-0 | 2-0 | 20 || 6-0 || Cirro-stratous scud. ®
7 | 284 || 37-8 | 36-4 | 1-4 || 1-S | 1-2 | 20 |, 3-0 Id.
8 312 || 38-5 | 36-9 | 1-6 || 1-6 | 1-0 | 19 || 1-0 Id. ; drops of fine rain. .
9 335 || 38-5 | 36-9 | 1-6 || 1-1 | 1-1 | 19 9.5 Id. uy
10 || 349 || 37-1 | 36-3 | 0-8 || 2-3 {1-1 | 18 | 5-0 Id. ; heavy showers occasionally. _|
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, S.=16, W.= 24,
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. :
405
404
378
258
222
114
094.
|) 29-011
28-999
29-001
|| 28-990
| 983
963
970
971
974
995
982
si} 983
28-993
|29-000
| 000
015
069
091
177
200
216
29-235
250
268
286
298
be, 24 21h,
_ MAG, AND MET. oss. 1845.
Is
THERMOMETERS.
|
NRE NTRWNOAWREO HO
WNOKRNWANWFR AMO OW OW
003 |
050 |
121 |
149 |
Maximum
force in
phy
SOS eros
Se T0OrF OOH eS
Clouds,
moving
from
pt. pt. pt.
20:—:—
— 722322
25090
_ {he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.=8,8S.=16, W.= 24. The
mons of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Observation made at 21 10™.
Se.: C.-s.: Ci.,
Hourty METEOROLOGICAL OBSERVATIONS, DECEMBER 1—3, 1845. 261
Species of Clouds and Meteorological Remarks.
Seud to N.; 115 5™, a flash of lightning.
Rain®?; a slight shower of hail lately.
Seud.
Streaks of cloud to NE.
Thin clouds near the horizon.
Thin clouds and haze over the sky.
Scud on horizon.
Id.
Cirro-stratous scud ? drops of fine rain,
Seud.
Id.; scud on Cheviot, clouds tinged red.
Cirro-stratous scud ; scud on Cheviot. ©
Id. 3 id. [part of a halo.Q
Scud; woolly, mottled, and linear cirri and cir.-str., rad. from W. ;
Thick woolly cirri; cirro-strati; scud on horizon. ©
Thickening woolly cirri and cirro-strati; scudn hor. ; solar halo. @
Dense mass of cir.-str. ; loose scud and cir.-str. on hor.
As before.
Scud; masses of cirro-strati; cirrous mass.
Send and cirro-stratus.
Scud.
Id.
Rain?
Seud and cirro-stratus.
Id.
Td: haze.
Scud and cirro-stratus ; rain?
Id.
Id.
Id. ; rain?
Nays drops of rain.
Id. on horizon.
Masses of scud and thin cirro-stratus.
Scud and cirro-strati. [strati and cirri.
Seud, cumuli, and cumulo-strati on hor. ; woolly cirro-
Woolly cirro-strati and cirri ; cumuli on NE. horizon. ©
lil. id. ©
Loose scud ; cirro-strati and cirri; cumulito NE. ©
Scud ; cumulo-strati to NE.; cirro-strati. ©
Id.; cirro-strati.
Id. ; id.; cum.-str. on NH. hor. ; snow on Cheviot.
Cirro-strati ; cumulo-strati on NE. horizon.
Seud. y
Cirro-stratous scud to S.; double auroral arch. »))
Id. ; aurora. »))
Id.; black patch of cloud below auroral arch to NNE.
Clear; aurora. See notes to Extra Magnetical Obs. of this date.
Flash of lightning on SSW. horizon ; auroral arch still bright.
Bright auroral arch about 10° altitude; streamers at 50° altitude.
Very clear; arch about 8° altitude internally, 8° broad.
Id.; rapidly pulsating arch.
Masses of cirro-strati to NNW., radiating from that point ; aurora.
Faint, nearly hom. aurora within 10° of hor.; rows of pulsating brushes.
262 Hovurty METEOROLOGICAL OBSERVATIONS, DECEMBER 3—6, 1845.
THERMOMETERS.
Gott BaRo-
Mean METER
Time. || at 32°. || Dry. | Wet. | Diff.
ly ng in. & e 2
3 18] 29-312 || 30-4 | 28-9 | 1-5
19 326 || 30-4 | 29-1 | 1-3
20 341 | 30-6 | 29-6 | 1-0
il 352 || 33-0 | 31-7 | 1-3
22 371 || 34-4 | 33-1 | 1-3
23 371 || 33-4 | 32-7 | 0-7
au 369 || 36-2 | 34-4 | 1-8
1 353 || 37-1 | 35-2 | 1-9
2 342 || 38-4 | 35-9 | 2-5
3 323 | 38-3 | 36-0 | 2.3
4 301 | 38-8 | 36-6 | 2-2
5 287 || 39-4 | 37-4 | 2-0
6 261 | 39-3 | 37-7 | 1-6
vf 215 || 37-1 | 36-2 |0-9
8 162 || 39-6 | 38-1 | 1-5
9 112 || 39-7 | 38-4 | 1-3
10 || 29-030 || 40-1 | 38-5 | 1-6
11 || 28-989 || 40-9 | 39-3 | 1-6
12 925 || 41-0 | 39-6 | 1-4
13 || 28-865 || 41-1 |40-0 | 1-1
14 823 || 43-9 |43-1 |0-8
15 815 || 44-1 | 41-9 | 2.2
16 809 || 43-4 |39-6 | 3-8
17 784 ||41-4 | 38-4 |3-0
18 811 || 42-0 | 38-6 | 3-4
19 812 || 41-8 | 38-4 | 3-4
20 812 || 41-6 | 37-7 |3-9
21 820 || 41-6 | 37-8 | 3-8
22 835 || 41-4 |37-9 | 3-5
93 855 || 41-0 | 38-6 | 2.4
by 0) 859 || 40-9 | 37-7 | 3-2
1 860 || 39-4 | 37-2 | 2.2
2 876 || 40-4 | 37-3 | 3-1
3 887 || 39-0 | 37-0 | 2-0
4 906 || 40-8 | 38-0 | 2-8
5 914 || 40-5 | 37-2 |3-3
6 932 || 38-6 | 36-3 | 2.3
7 929 || 38-9 | 36-9 | 2-0
8 929 || 37-4 | 35-8 | 1-6
9 931 || 37-3 | 35-4 | 1-9
10 937 || 37-9 | 36-1 | 1-8
1l 948 || 37-9 | 35-9 | 2-0
1 921 || 37-7 | 35-5 | 2.2
13 || 28-921 | 38-7 | 36-4 | 2-3
14 926 || 38°7 | 36-2 | 2-5
1 O12 || 44-1 | 41-3
WIND.
Maximum
force in |Fyom
1b, ;10™.
Ybs. | Ibs. | pt.
0-3 |0-2 | 21
0-2 |0-1 | 20
0-2 |0-2 | 19
0-2 |0-2 | 19
0-4 |0-2 | 20
0-4 |0-8 | 19
0:8 | 0-4 | 20
0-4 |0-7 | 19
1-3 |0-9 | 19
0-8 |0-4 | 20
0-5 |0-5 | 19
1-2 |0-5 | 20
0-4 |0-1 | 19
0-0 | 0-0
0-5 |0-4 | 18
0-7 |0-5 | 18
1-3 |0-6 | 18
0-5 |0-2 | 18
0-5 |0-4 | 18
0-7 |0-6 | 18
1-4 |0-9 | 19
1-1 |0-5 | 20
2-5 | 1-8 | 2H
2-9 {1-4 | 19
2-4 /1-4 | 21
5:0 | 2-8 | 22
3-4 11-8 | 20
4-2 {3-1 | 22
3-4 |4-2 | 21
4-0 | 2-4 | 22
3-9 |2-3 | 19
2:8 |0-8 | 20
2-5 |2.2 | 22
3-1 |0-5 | 19
aT Fa ar (ee 4 |
1-2 | 1-2 | 20
1-3 |0-5 | 19
0-7 | 0-4 | 20
0-7 | 0-3 | 19
0-6 |0-3 | 20
0-6 |0-9 | 19
1-4 |0-8 | 20
1-4 | 1-3 | 20
2-0 | 1-6 | 19
2-2 11-8 | 20
1-3 | 1-3 | 20
PAI Wit} i Pail
1-3 |0-5 | 20
0-6 |0-3 | 19
1:0 |0-3 | 19
0-5 |0-7 | 19
0-5 |0-1 | 19
0-2 |0-1 | 20
0-1 |0-0 | 18
0-1 |0-0 | 16
0-3 | 0-2 | 18
2a)?
Clouds,
Se. : C.-s.: Ci.,|}
moving
from
Sky
clouded.
Species of Clouds and Meteorological Remar
Clear ; very faint auroral arch about 10° alt., still yi
Id.; patch of seud on Cheviot.
Id.; cirro-strati.
Woolly cirro-strati and cirri; cum.-str. on ENE.
dacs cirro-strati and se
Loose cirro-strati; sheet of cirro-strati.
Cirro-cumulo-strati; loose scud.
Cir.-cum.-str. and cirro-stratus ; cum.-str. ; wool.
Thick cir.-str. ; sheets of cir.-strati ; cir. ; haze; s
As before. [Cheviot
Id.
Dense mass of cirro-stratus ; cirro-strati.
Patches of scud and sheet of cirro-stratus.
Td, 3 clouds br
Cirro-stratus ; clouds broken.
Scud and cirro-strati; sky in zenith.
Ids); clouds broken.
Td.
Id.
Very slight drizzle.
Id.
Clouds on horizon.
Scud ; occasionally drops of rain.
Id.
Td.
Id. on SE. horizon.
Dense mass of cirrous fringed scud.
Scud ; cirro-strati on E. horizon ; drops of rain.
Loose cirro-strati; cirro-strati and haze on hori
dhs 145 nim!
Scud and cir. masses of cir.-str. like the tops of nil
Loose scud, cirro-strati, cumuli and nimbi.
As before ; cumulo-strati.
Id.; — nimbi all round horizon.
lids; id. ; sky looking very
Cirrous masses of cir.-str, ; nimbi ; dense clouds t
Seud. } [ sto: my
Id.
Td.
Id.
Td.
Id.; rain®?
Id. and eirro-strati on horizon.
Seud and cirro-strati on horizon.
Seud and cirro-strati.
Clear ; clouds on N. horizon.
ihe id.
Id.; clouds on NE. and SW. horizon.
Cirro-strati.
Seud.
Id.
Cir.-str. scud with cir. fringes; woolly and mottled em
Seud ; cirro-strati and woolly cirri.
As before.
Id.
Id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, KE. = 8, S. = 16, W. = 24.5 Th e
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. P
HovurLy METEOROLOGICAL OBSERVATIONS, DECEMBER 6—9, 1845. 263
ee | Clouds,
“METER Maximum as ee tie Species of Clouds and Meteorological Remarks.
at 32°. || Dry. | Wet. |Die.|) forcein [rrom|) “ae
1», |10™,
@ G i. lbs Ibs. pt. pt. pt pt. 0—10.
41-0 | 39-2 | 1-8 ||0-2 | 0-0 | 19 ||22:22:—¥) 9-5 | As before.
39-9 | 38-2 | 1-7 ||0-3 |} 0-1 | 17 ||22:—:—]| 9-9 Id.; cumulo-strati on NE horizon.
38-9 | 37-6 | 1-3 || 0-1 |0-0 | 16 || 22:—:—| 8-0 GEE id.
36-7 | 35-7 | 1-0 || 0-0 |0-0 | 20 ||—:21:—] 9-5 || Cirro-stratous seud. }
37-4 | 36-4 | 1-0 ||0-0 |0-0 | 18 10-0 Id.
38-2 | 37-2 | 1-0 || 0-0 | 0-0 | 26 10-0 | Id. ; rain”?
37-6 | 36-9 | 0-7 ||0-:0 |0-0 | 4 10-0 Id.
36-5 | 36-0 |0-5 ||0-0 |0-0 | 26 || —:28:—J 9-0 || Cirro-cumulo-strati and cirro-stratous scud. }
34-0 | 33-6 | 0-4 || 0-0 |0-0 | 24 5-0 Id. »))
32-9 | 32-7 | 0-2 ||0:0 | 0-0 0-5 || Cirro-stratous scud on S. horizon. »)
30-6 | 30-0 | 0-6 | 0-0 |0-0 | 20 0-0 || Clear. »)
36-0 | 33-7 | 2-3 ||0-3 | 0-1 | 28 || —:28:—|| 2-0 || Loose cirro-cumulo-strati; p.m. clear.
27-5 |27-5 | ... || 0-4 | 0-0 8-0 || Cir.-cum.-str. lying in bands from N by W. toS by E.
30-6 | 30-0 | 0-6 || 0-1 |0-0 | 18 9-5 || Cirro-cumulo-strati.
31-9 | 30-5 | 1-4 | 0-0 | 0-0 | 19 10-0 Id.
33-1 | 31-6 | 1-5 |/0-1 |0-0 | 22 8-5 || Cirro-strati.
32-6 |31-5 | 1-1 ||0-1 | 0-0 | 24 2-0 Id.
32-4 |31-4 |1-0 |0-0 |0-:0 | 6 6-0 Id.
31-8 | 31-0 | 0-8 || 0-0 | 0-0 | 26 3-5 || Thin cirro-strati radiating from about SE.
33-6 | 32-5 | 1-1 || 0-0 |0-0 | 24 10-0 || Nearly homogeneous mass of cirro-stratus.
33-4 | 32-5 |0-9 ||0-0 |0-0 | 26 10-0 || Cirro-stratous scud; undulated cirro-strati.
34-0 | 32-6 | 1-4 || 0-0 | 0-0 | 31 10-0 || Nearly homogeneous mass of cirro-stratus.
35-9 |35-0 | 0-9 ||0-:0 |0-0 | 6 10-0 Id. ; foggy.
39-3 | 38-2 | 1-1 || 0-3 |0-2 | 19 | 20:—:—]| 9-9 || Misty and cirro-stratous scud.
41-2 |39-8 | 1-4 ||0-2 |0-2 | 19 ||: 20:—|| 9-9 || Cirro-stratous scud. ©
40-8 | 39-3 | 1-5 |/0-3 |0-3 | 18 | 21:—:—|| 9-0 || Misty and cir.-str. scud; cir.-cum.-str.; particles of the
41-3 | 39-8 | 1-5 ||0-3 |0-1 | 19 ||/21:—:—}]} 10-0 Id. [finest rain.
40-6 | 39-8 | 0-8 || 0-2 | 0-1 | 20 | 24:—:28]| 7-0 |) Smoky scud; mottled cirri; cirro-strati.
42-5 | 41-2 | 1-3 |/0-2 | 0-0 | 20 || —:25:— || 9-8 || Cirro-stratous seud.
42-1 | 40-9 | 1-2 ||0-1 | 0-0 | 20 9-7 || Scud ; cirro-cumulo-strati.
43-1 |41-4 | 1-7 ||0-6 |0-4 | 18 9-8 Tike id. }
43-5 141-7 | 1-8 || 1-0 | 1-2 | 19 || 24: —:— 4:0 Id. ; cirro-strati. y
40-8 | 39-6 | 1-2 ||0-9 |0-4 | 19 0-3 || Cirro-strati on horizon. »)
42-9 | 40-7 | 2-2 || 2.5 | 2-0 | 18 10-0 || Overcast.
43-0 {41-5 | 1-5 | 1-7 | 1-5 | 21 || 24:—:—]) 6-5 |) Scud and cirro-cumulo-strati. ‘
44.2 |42.2 | 2-0 || 1-1 |0-5 | 24 ||\24:—-:— || 7-5 || Scud; woolly cirri; cirrous haze; lunar corona. >}
44.2 |40-7 | 3-5 |) 1-1 | 1-2 | 23 ||}25:—:—| 7-0 || Scud; woolly cirri; lunar corona.. »
43-9 | 40-0 | 3-9 || 1-6 | 1-5 | 22 3-0 || Cirro-strati and woolly cirri; lunar corona. >
44.0 | 40-4 | 3-6 | 2-1 | 1-0 | 25 || —:26:—]} 4-0 |] Cirro-cumulo-strati; sky milky on horizon.
42-2 | 38-9 | 3-3 || 1-6 | 1-5 | 24 0-2 || Clear; clouds on 8S. horizon.
42-2 | 39-0 | 3-2 | 1-7 | 0-8 | 24 0-2 Id. ; id.
41-6 | 38-0 |3-6 | 1-7 | 1-1 | 24 0-2 Id. ; id.
41-2 | 37-6 | 3-6 | 1-6 |0-8 | 22 0-3 || Cirro-strati on horizon.
40-7 | 37-5 | 3-2 | 0-9 |0-7 | 21 0-5 || Scud and cirro-strati to S. [drops of rain.
41-3 | 38-0 |3-3 | 0-9 | 1-7 | 21 || 25:—:26]| 3-0 .|| Smoky scud; woolly watery-like cirri, orange tinted ;
42-4 | 39-0 | 3-4 | 2-1 |2-3 | 23 || 26: 26:—J]} 3-0 |] Seud; cirro-cumulo-strati.
43-4 | 39-3 | 4-1 | 1-9 | 2-0 | 25 0-5 || Loose seud and cirro-strati on horizon. (0)
43-9 |40-3 | 3-6 || 3-9 | 1-7 | 26 || 26:—:— || 1-0 || Loose scud and cumuli. ©
41-5 |38-3 | 3-2 || 4-3 | 1-5 |24v. 3-0 || Cir.-str. & scud near hor. ; loose nimbus; slight shower. ©
42-7 | 39-2 |3-5 | 2-5 |2-1 | 23 | 26:—:—|| 4.0 || Seud; cirro-strati; slight passing shower.
42.2 | 38-0 |4-2 || 2-1 | 1-0 | 25 2-0 || Scud and cirro-strati towards horizon. ©
41-8 | 38-4 | 3-4 |/1-5 |2-1 | 26 |) 26:—:— | 3.0 Id.
40-9 |37-3 | 3-6 || 1-9 |1-8 | 25 || —:25:—J]| 3-0 || Loose cirro-cumulo-strati. »)
39-9 | 36-8 | 3-1 || 2-3 | 1-8 | 25 0-1 || Scud on Cheviot. yy
40-2 |37-0 | 3-2 | 2-0 | 1-0 | 26 1-0 || Cirro-strati to W. and SW. y
Ti direction of the wind is indicated by the number of the point of the compass, reckoning N. "0, B. = 8, S.= 16, W.= 24. The
otils of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
264
Gott. BaRo-
Mean || METER
Time at 32°
d. h. in.
9 8|| 29-752
9 779
10 810
11 843
12 871
13 || 29-888
14 906
15 933
16 970
17 || 29-990
18 || 30-010
19 030
20 044
21 063
22 078
23 102
10 O 100
1 090
2 071
3 059
4 045
5 || 30-005
6 || 29-986
7 959
8 903
9 839
10 793
11 725
12 656
13 || 29-607
14 bY5}5)
15 524
16 495
17 500
18 494
19 485
20 459
21 445
22 442
23 485
11 O 507
1 523
2 555
3 601
4 659
5 412
6 755
a 796
8 842
9 878
10 917
11 951
12 || 29-954
13 || 30-004
14 025
Hovurty METEOROLOGICAL OBSERVATIONS, DECEMBER 9—11, 1845.
THERMOMETERS.
WIND.
Dry. | Wet. | Diff.
ay
o
to
oo
o >
a ee ee
ANAwwoOWHAaK
nS
wo
for)
w
oe)
i
PwornnrnP nwo
44.0 | 38.4 |5-6
37-7 | 34-1 | 3-6
37-9 | 34-0 |3-9
37-9 | 34-2 | 3-7
38-3 | 35-8 | 2-5
The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E.=8, 8S.=16,W.=24. Tl
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Maximum
force in |Fyom
OOH WONONOH WOH
ya, (10=.
=
i=
n
=
o
a
KPO RP Ree
wmpoO WRN O Ov
S
ee}
Clouds,
Se. : C.-s.: Ci.,
moving
from
pt. pt. pt.
|
|
28.:—:—
—:—:30]|
—:—:30
—:22:—
|
Pye
25 :—:—
25 :—:—
28 :—:—
29 :—:—
30 :—:—
30 :—:—
30 :—:—
30 : —:—
31:—:—
31:—:—
= 8 Joe
Sky
clouded.
Species of Clouds and Meteorological Remarks. .
Cirro-strati to W. and SW.
Cirro-strati and cirrous haze on horizon. a |
As before. y [corona and halo
Thin cir.-str. and streaks of cir. lying E. and W. ; Tur
Nearly as before ; lunar corona and halo. ,
Woolly cir. and cir. haze ; lunar cor. and halo ; two sho
Cirri in streaks and parallel bars. | ) [ing-stams
Strips of thin cirri lying NW. and SE., barred a
Thin cirri and cirrous haze ; lunar corona. i
Id. fal
Cirro-strati. 4
Id. [cirro-strati to
Band of cir.-str. and cir. to E.; clouds on E. ho
Patches of scud; woolly cirri; cir.-str.; cirrous haz
Woolly cir. and cir. haze; scud; cir.-str.; solar halo at 22h om
Sky nearly covered with woolly cirri and cirrous haze
Id. :
Tidss faint solar h alo
Cirro-stratus and cirrous haze.
Id.
Undulated cirro-stratus and cirrous mass. Py
Id., radiating from N by \
Mass of cirro-stratus. [and S by
Id. \
Id. 4
Thin cirro-stratus.
Cirro-stratus. ri
Id. f
Seud and cirro-stratus. :
Scud and cirro-stratus ; drops of rain.
Mele id.
Scud; coloured lunar corona.
Id.; a patch of cir.-str. producing a diffuse coloum
Seud ; coloured lunar corona. ») [lunar cor
Seud and loose cumuli. |
Patches of scud. : :
Id. ; long cirrous streaks radiating from §)
Streaks of cirri and patches of scud on horizon. y
Patches of scud and haze on horizon. te
Loose seud. it
Seud and loose ecumuli. “4
Id. 4
Id. t;
Cirro-stratous scud. “6
Id. ¥
Id. i
Seud.
Id.
Id.
Id. :
Scud and cirro-stratus on horizon. g
Id.
Seud and cirro-strati on E. horizon.
Scud and cirro-strati on E. horizon.
Cirro-cumulo-strati. ‘
*.
a) ae
_ MAG. AND MET. ops, 1845.
, nd
is
Hovurty METEOROLOGICAL OBSERVATIONS, DECEMBER 11—14, 1845. 265
THERMOMETERS.
Dry. | Wet. | Diff.
37-0
37-2
37-2
37-5
38-0
37-0
36-3
37-0
38-0
39-0
39-2
39-0
37-3
36-5
30-4
33-3
31-7
31-2
31-5
26-9
25-2
40-9
47-2
48-2
48-0
46-4
44.7
42.7
42-8
41-0
25-8
25-0
23-6
24-8
24-7
29:3
30-6
28-3
26-6
26-7
24-9
40-0
46-0
46-7
45-0
43-0
41-0
39-0
38-7
37-7
motions of the three strata of clouds,
Dee. 1326, Observation made at 64 5™,
WIND.
. *
Maximum
force in
oO
oOo Fee eS
Clouds,
Se.: C.-s.: Ci.,
moving
from
pt. pt. pt.
ar SEE EAP IE EE: FES
a ]
Sky
clouded. Species of Clouds and Meteorological Remarks.
2-0 || Cirro-strati, cirri, and cirrous haze; small lunar cor.
3-0 || As before; lunar hale.
4:—:30
a= 2 Bil
1:—:—
0:31:—
2:—:—
Die Ors 10
—:28:—
— :28:—
—:—:30
—:28:—
—: 0:—
pa ise 5 | ees
21:—:—
26 :—:—
26:—:—
i
27: —:—
6:0 || Thick cirrous haze; lunar halo.
4-0 || Cirro-strati; thin cirrous haze over the sky.
7-0 || Cir.-str. and cir. haze, slightly tinged with red to SE.
5-02 || Scud on horizon ; cirri and thin cirro-strati.
)
D!
3-0 Id. ; id. |
4
8-0 ||, lelas id.
9-5 || Scud ; cirro-strati, cirri, and cirrous haze.
9-8 || As before ; portion of a solar halo.
9-5 || Loose cum. and scud to E.; cirro-strati and cir. haze.
7-0 HIgh 2 cirro-strati and cirri. ©
2-0 || Cum.-str. and cir.-str. on K.and 8. hor.; patches of cirri. ©
2:0 || Large cumulo-strati on H. horizon ; patches of cirri.
0-8 lide slight haze.
1-0 || Cirri and cirrous haze to E.
0-2 Id.
0:2 Id.
0-1 || Cirrous haze on horizon.
0-1 Id.
0-0 || Rather hazy on H. horizon ; faint corona.
0-0 Id. ; very faint corona.
0-2 || Cirri? to K.; very faint corona.
0:0 || Very clear; thick hoar-frost; very faint corbna.
ne id.
1:0 || ‘Sheet of thin cirrus to W. ; id.
1:0 || Thin cirri, radiating from NW. ; id.
1-0 || As before ; part of a lunar halo.
7-0 || Cirro-cumulo-strati, cirro-strati, and cirri.
4-0 || Cirro-strati ; cirri.
9-5 lighys id.
9-5 ick 3 id.
7-0 || Woolly and mottled cirri; cirro-strati.
»)
)
)
)
»
»)
»)
)
0-0 || Rather hazy on E. horizon; very faint corona. »)
»
)
»)
)
)
»)
>
®
©
9-0 || Cirro-stratous scud ; linear cirri.
3-0 || Cirro-cumulo-strati, cirre-strati, and cirri. =)
1-0 || Cirro-strati and cirri round horizon. ©
2-0 || Cirro-strati; clouds tinged red.
9-5 || Cirro-stratous scud; cirri and cirrous haze.
9.5 liek, 2 cirro-cumulo-stratus.
4-0 || Cirro-cumuli. -
0:8 liobs cirrous streaks. »))
0-2 || Patches of cirri. yi
0-0 || Very clear; milky light (?) to N. yp;
0-0 Id. )
0-2 Id. ; streaks of cloud te NW. )}
sree Loose scud ; dense homogeneous cirro-stratus. |
10-0 || Scud and cirro-strati; rain! :
10-0 | LG IS rain??
10-0 || Scud; dense mass of cirro-stratus. ):
10-0 || Id.; id. i
10-0 dis id. y]
9.8 || Id.; cir.-cum.-str. rad. from WNW. ;cir.-str.; lun. cor. }-
7-0 || Cirro-cumulo-strati; cirro-strati. yi
6-0 |! Woolly cirri; cirro-strati. yl
The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E. = 8, S.= 16, W. = 24. The
Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
OR ease es ee
4
f
f
I
l
a
266 Hovurty METEOROLOGICAL OBSERVATIONS, DECEMBER 14—17, 1845.
|| THERMOMETERS. WIND. Clouds
a a ari Wee ioe) a Sc. :C.-s. : Ci., Sky é.: Te {
nen uae Tara seig roel i age movi ng _||clouded. Species of Clouds and Meteorological Remarks,
14, ; 10", ae
d. oh. in. ° Q) e WEE AES jae ilies ae ||| Caly 3
14 21 || 29-332 || 41-8 | 37-1 | 4-7 | 2-4 |1-4 | 24 | 26:—:—| 2-0 || Seud on hor. ; woolly cir. lying from WNW. to E&
22 345 | 40-9 | 36-9 | 4-0 || 2-0 | 1-4 | 24 | 26:—:—|| 1-5 || Loose scud; cirro-strati/ © [barred ae
23 357 || 41-2 |37-8 | 3-4 || 1-9 | 1-3 | 22 1-0 1S id.
15 0 355 || 43-6 |38-9 |4-7 | 2-4 |2-1 | 24 || 25:—:—| 2-5 || Scud; bandsof cir. toSW.,lying from WNW. to E
1 350 || 43-6 | 38-8 |4-8 || 3-4 | 2-2 | 24 || 25:—:—|| 2-0 || Patches of seud ; id.
2 329 || 43-6 | 39-4 |4-2 || 2-1 |0-6 | 24 || 25:—:—|| 2.5 Gee id.
3 319 || 40-6 | 38-5 | 2-1 | 3-3 |2-8 | 24 | 25:—:26|! 3-0 || Scud; cirri as before; shower” at 2h 30™,
4 332 || 41-3 | 39-0 | 2-3 | 2-5 | 3-8 | 27 | 25:—:26)| -6-5 || Scud and loosenimbi; bandsof cir. and cir.-str.; sho
5 333 | 41-0 | 38-2 | 2-8 | 2-1 |1-7 | 24 | 25:—:27]| 3-5 || As before ; the cirri barred at right angles to the b
6 330 | 41-8 | 38-4 | 3-4 || 3-3 | 2-2 | 24 3-0 || Scud and cirro-stratus ; drops of rain.
Ti 329 || 41-8 | 39-0 | 2-8 | 3-7 |3-0 | 24 5-0 Ta: ; rain’; part of a lunar rainbe
8 320 || 42-3 | 39-0 |3-3 || 2-2 |1-8 | 23 || 27:—:—|| 2-0 || Loose cumali.
9 316 || 41-9 | 39-0 | 2-9 || 2-7 | 1-6 | 25 || 27:—:—|| 3-0 || Loose seud; cirro-strati and cirri.
10 310 || 41-9 | 38-7 |3-2 || 2.3 | 1-1 | 25 3-0 ld? linear cir., rad. from SE. ; clea 01
11 306 || 42-7 | 39-0 | 3-7 || 2-7 |3-2 | 23 9-5 || Seud on hor. ; woolly cirri, rad. from about SE. ;
12 303 | 43-3 | 39-6 |3-7 || 2-0 | 1-7 | 24 | 26:—:—|| 9-2 || Scud; cirri nearly as before ; lunar cor. }-
13 || 29-287 || 43-2 | 39-5 |3-7 || 2-2 |1-9 | 23 9-5 || Scud ; cirri nearly as before ; halo and corona.
14 273 || 43-3 | 39-9 | 3-4 || 2-0 | 2-2 | 24 8-0 || As before ; halo indistinct ; drops of rain occasional
15 244 || 45-0 | 40-2 | 4-8 || 3-2 |2-8 | 24 9-8 Id. ; id.
16 230 || 44-8 | 40-5 |4-3 || 5-0 | 4-1 | 24 10-0 Id. ; id.
17 210 || 44-1 |40-7 |3-4 || 3-6 | 2-6 | 24 10-0 || Scud ; cirri becoming thicker ; corona ; drops of rai
18 202 || 43-3 | 39-8 | 3-5 || 3-7 | 2-7 | 24 10-0 || Id.; id.2 ides id.
19 207 || 42-8 | 39-3 |3-5 || 2-6 |2-2 | 24 9-5 || Thick woolly cirri. yy [scud ; rain!
20 228 || 42-2 | 39.0 |3-2 | 3.4 |3-2 | 24 9-8 Id. and cir.-str., rad. from ESE. ; lo
21 256 || 41-7 | 37-6 |4-1 || 3-8 | 2-3 | 26 9-5 || Thick ribbed and dappled cirro-stratus.
22 274 || 41-3 |37-2 |4-1 || 2-6 |2-5 | 26 ||_-:27:—|| 9.0 Tiss patches of s
23 298 ||41-6 | 37-0 | 4-6 || 1-8 | 2-5 | 25 ||: 97:— 9-0 Thick ribbed and dappled cir. str. ; patches of scud; cum, oma I
16 0 325 || 41-6 | 37-2 |4-4 || 2-5 | 1-6 | 26 ||: 26: — 8-5 Cir.-cum.-str. ; ribbed & dappled cir.-str. ; rad. from WNW. & ESE
] 337 ||41-6 | 36-8 |4-8 ||} 2-3 | 1-1 | 24 || _:—:927 8-0 Reticulated, &c. cir., rad. from NW by W. and SE by E. cu n
2 336 || 41-6 | 37-0 |4-6 || 2-2 | 1-3 | 24 || _-: —: 927 8-0 || As before. @ (on E. hor.; patches of s¢
3 338 || 40-7 |36-7 |4-0 || 2-1 | 1-4 | 24 || —_:—:97]| 7.5 Id.; cirri more broken ; dappled cirro-strati
4 340 || 40-4 | 36-5 |3-9 | 2-1 | 1-8 | 24 | —:—:27]| 7-0 | Woolly cirri and cirro-strati; scud near horizon.
5 338 || 38-6 | 36-9 | 1-7 || 1-7 | 1-0 | 24 || —:—:27]] 8-0 || Nearly as before.
6 354 || 39-5 | 36-4 | 3-1 || 2.4 |0-8 | 24 3-0 || Radiating cirri and cirro-strati.
7 358 || 39-5 | 35-7 |3-8 || 2-2 |1-0 | 24 0-5 || Cirri to SE.
8 380 || 38-0 | 34-6 | 3-4 | 1-6 |0-6 | 25 1-0 || Woolly cir. lying NW by W. and SE by E.) [hale
9 401 || 38-2 | 34-8 |3-4 || 1-8 |0-8 | 26 2-0 || Patches of scud ; thin cirri ; lunar cor. and po
10 414 ||37-0 | 34-2 | 2-8 ||0-9 |1-2 | 25 1-0 || Spotted woolly cirri, with corona; halo and paras
11 423 || 35-7 | 33-3 | 2-4 || 1-3 |1-0 | 28 0-5 || Cirri and cir. haze on hor. ; very faint lunar co
12 459 || 34-3 | 32-2 |2-1 | 1-0 |0-0 | 20 | :29:-——|| 1-0 || Sheets of cirro-stratous seud ; very thin cirrous hi
13 || 29-477 || 33-3 | 30-7 |2-6 |/0-1 |0-3 | 19 0-5 | Small tufts of cloud from NW. to SE. ; streaks of
14° 476 || 35-3 |31-7 | 3-6 | 0-6 |0-5 | 26 0-5 | Bands of cirri lying from NW. to SE. -
15 502 || 34-4 |30-8 | 3-6 | 0-5 |0-3 | 25 0-3. | Streaks of cirri. .
16 526 || 29.6 |27-9 | 1-7 || 0-4 |0-0 | 22 0-4 | Cirri and cirro-strati to SW. ad
17 536 || 28-3 | 26-7 | 1-6 | 0-0 |0-0 | 18 3-0 || Woolly and mottled cirri; a diffuse lunar a
18 540 || 30-9 | 28-5 | 2.4 | 0-0 |0-0 | 20 | —:28:—|| 2-5 |) Cirro-cumulo-strati.
19 536 || 27-8 | 26-8 |1-0 || 0-0 | 0-0 | 20 8-0 Id.
20 545 || 28-8 | 27-7 | 1-1 || 0-0 |0-0 | 18 9-0 || licks thicker to W.; sky to E.
21 548 || 29.3 | 28-3 | 1-0 ||0-0 |0-0 | 18 || —:27:— 9:0 || lke clouds tinged red to E.
22 552 || 30-2 | 28-8 | 1-4 ||0-0 |0-0 | 18 9-8 || Cir.-str.,rad. from NW by W. and SE by E.; cir. mas
23 548 || 31-3 | 29-9 | 1-4 ||0-1 |0-0 | 23 ' 9-8 || Cirro- piatt and cirrous haze ; solar halo.
17 0 536 || 32.2 | 30-7 | 1-5 || 0-0 | 0-0 7 || —:26:—]| 9-5 Id. ; id. d
1 516 || 32-7 | 31-2 | 1-5 |/0-0 |0-0 | 28 || —:26:—j 8-0 || Woolly and mottled cirri ; cir.-str., rad. from
2 505 || 35-6 | 33-0 | 2-6 ||0-0 | 0-0 | 28 || —:26:—|| 8-0 || As before. oO [and ENE
3 483 || 34-7 | 32-7 | 2-0 || 0-0 | 0-0 —— 126 7—'|| (8-0 Id.; stratus on horizon.
4 472 |'32-5 | 31-0 | 1-5 || 0-0 | 0-0 4 ||\—:26:— 9-8 Id. ; id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H. = 8, S.= 16, W. = 24
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Dec. 162 4%, The cirri radiating from NW by W.; the cirri do not seem to extend far towards the NH., as they terminate a
to NE., at an altitude of about 20°; this has been the case all day. ‘
Dec. 164 194. Observation made at 19» 10™,
Hovurty METEOROLOGICAL OBSERVATIONS, DECEMBER 17—19, 1845.
7 THERMOMETERS. WIND.
it. || Baro-
an || METER Maximum
ie. || at 32°. | Dry. | Wet. | Diff.|| force in From
. 1b, )10™,
| ah. in. S ‘4 e Ibs. | lbs. pt.
) 5 || 29-457 | 30-9 | 29-6 | 1-3 ||0-0 |0-0 | 2
6 448 || 29-8 | 28-6 | 1-2 ||0-0 |0-0 | 2
7\| 446 || 27-0 | 26-6 |0-4 || 0-0 |0-0 | 16
1si| 440 || 26-1 |26-4 | ... || 0-0 | 0-0
19] 419 || 28-3 | 27-9 | 0-4 |0-0 | 0-0
10 410 || 30-0 | 28-8 | 1-2 ||0-0 |0-0 | 2
11 398 || 29-2 | 28-6 |0-6 || 0-1 |0-0 | 10
12|| 388 || 28-9 | 28.2 |0-7 ||0-0 | 0-0 | 12
13 || 29-383 || 30-5 | 29-6 |0-9 |0-0 |0-0 | 6
14|| 369 || 30-3 | 30-0 |0.3 | 0-0 |0-0] 4
115 371 ||32-0 |31-8 |0-2 ||0-0 |0-0 | 4
16 359 || 33-0 |32-5 |0-5 |/0-:0 |0-0| 2
117 351 || 33-7 |33-4 |0-3 0.3 |0-4 {| 2
18 353 ||34-8 | 34-2 |0-6 |/0-9 |0-6 | 2
119 366 || 34-6 | 33-9 |0-7 |/0-6 |0-4 | 3
'20 371 || 34-3 | 33-6 |0-7 ||0-4 |0-2 | 2
121|| 406 || 35-5 | 34-4 |1-1 10-3 |0-3 | 2
122!) 406 ||35-5 | 34-4 |1-1 |0-5 |0-4 | 0
123|| 416 ||35-8 | 34-7 |1-1 |10-8 |0-6 | 0
$0] 424 |136-0 |34-9 /1-1 |10-6 |0-1 | 2
}1 424 ||36-1 |35-0 |1-1 0-2 |0-1 | 1
12|| 412 36-1 |34-9 | 1-2 |/0-2 |0-1 | 0
} 3] 424 |/36-0 | 34-6 | 1-4 | 0-6 |0-5 | 31
14] 429 |/35-0 | 34-2 |0-8 |/0-9 | 0-2 | 31
| 5 443 ||34-8 133-1 |1-7 |10-5 |0-4 | 0
16] 427 |/31-8 | 30-2 | 1-6 ||0-2 |0-1 | 2
17|| 416 || 28-8 | 28.4 | 0-4 |/0-1 |0-1 | 17
18] 410 || 29.2 | 27-8 | 1-4 ||0-1 |0-1 | 19
9|| 390 || 26.2 | 26-0 |0-2 ||0-1 |0-1 | 20
356 || 27-3 | 27-1 |0-2 |/0-1 |0-1 | 18
331 || 27-4 | 26-9 | 0-5 ||0-0 |0-0 | 22
'12 283 || 27-3 | 27-0 |0-3 ||0-0 |0-0 | 20
113 | 29-227 || 28.3 | 27-6 | 0-7 |0-0 [0-0 | 18
{14 183 || 29-2 | 28-5 |0-7 ||0-0 | 0-0 | 18
5 141 |/31-i | 30-0 | 1-1 ||0-0 |0-0 | 18
\16 29-058 || 31-8 | 31-0 | 0-8 || 0-2 |0-3 | 16
7 || 28-943 || 31-4 | 30-5 | 0-9 || 0-4 [0-2 | 18
8 848 ||34-8 | 32-7 |2-1 |/2-1 |2-1 | 18
19) 787 ||34-7 |33-7 | 1-0 | 2-0 | 1-6 | 17
20) 690 |/35-3 | 34-4 [0-9 || 2-1 | 1-4 | 16
21|| 604 || 37-4 | 36-6 |0-8 || 2-5 |1-9 | 18
22 563 || 38-5 |37-9 |0-6 || 1-7 |0-6 | 18
23) 550 || 40-7 | 39-2 | 1-5 || 1-7 |0-4 | 21
1} 0} 528 |/41-2 | 38.3 | 2-9 |/0-9 |0-6 | 22
1} 539 || 40-3 | 37-3 | 3-0 || 0-6 |0-5 | 21
|) 2) 512 || 41-0 | 37-0 | 4-0 || 1-0 |0-8 | 20
3|| 497 ||39-7 |36-7 |3-0 ||0-3 |0-4 | 20
4) 473 |/38-2 |35-9 | 2-3 || 1-1 |0-8 | 20
5] 458 | 35-9 | 34-4 |1-5 11-1 |0-3 | 19
16) 433 || 35-4 | 33-9 | 1-5 |0-7 |0-4 | 19
17) 417 ||35-7 | 34-5 | 1-2 || 0-9 | 0-4 | 20
8] 398 ||35-7 |34-5 | 1-2 0-5 |0-7 | 19
| 9|| 363 ||36-9 | 35-4 | 1-5 || 1-6 |1-1 | 19
}10)) 343 37-1 | 35-4 | 1-7 [12-0 | 1-0 | 19
ape 314 || 36-7 | 35-2 |1-5 || 1-2 |0-7 | 18
}12\| 296 1135-5 | 34-1 | 1-4 ||0-7 10-6 | 19
Clouds,
Se. :C.-s.: Ci.,
moving
from
PR ww
eo
|
224:
Sky
clouded.
267
Species of Clouds and Meteorological Remarks.
Cirro-cumulo-strati; cirrous haze ; foggy to E.
Cirro-strati ; cirrous haze over the sky.
Cirrous haze.
Id.
Cirro-strati and cirrous haze.
Scud and cirro-stratus.
Id. ; dense cirrous haze.
Ilys id.
Scud and cirro-stratus; fine flakes of snow.
snow!
Homogeneous mass ; sleet.
ligt id. )
Sleet!
Sleet?
Homogeneous mass of scud ; rain”?
Id. ; id.
Clouds broken up; scud; cirro-cumuli and cir.-str.
Patches of scud; cir.-cum.-str., the motion scarcely perceptible.
Cirro-stratous scud on horizon ; id.
Gk cirro-cumuli.
Seud and loose cumuli; cirro-strati.
Seud; cirro-stratous scud; rain”?
Td.; id.
Cloud and haze on horizon.
Id.
Id.
Id.
Cirro-stratus and haze.
Mass of cir.-str. and cir. haze; a few stars dimly visible. )
Id. ; id. )
Mass of cirro-stratus, denser; moon scarcely visible. )
Id., id. [about 15» 15™,
Id., id.; commenced snowing
OOO
Homogeneous mass of clouds.
Cirro-stratous scud (?) moving rather quickly ; cir.-str. ;
Homogeneous mass. [clouds broken. )
Id.
Seud ; cirro-strati seen through break to S. )
Id.; dense homogeneous cirro-stratus.
Id.; id.
Loose scud ; cirro-stratous scud ; cir.-str. ; sky to NW.
Loose cirro-strati ; cirro-strati and cirrous haze. oO
IIGEs id. ©
Cirro-strati; haze and patches of scud round hor. ©
Id. 0) [cirrous haze.
Thick scud rising to W.; cir.-cum.-str. ; woolly cirri ;
Loose cirro-strati and cirro-cumulo-strati; cirro-strati.
Id.
Id.
Cirro-stratous scud? drops of rain.
Id.?; shooting-star from y to 6 Urse Majoris.
Id.; drops of rain.
Scud and cirro-stratus.
Id.
sf The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8,S.=16, W.= 24. The
_ jotions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
| Dec. 184 175 11,
Wind commenced blowing 0:8 lb., barometer 28-925.
174 40™,. Wind blowing 2:0 1b., barometer 28-876.
19 30”,
/ind blowing 1:6 1b., barometer 28°735. 20 30™, Wind blowing 2°5 lb., barometer 28°647. 21 30™. Barometer 28°581.
i
268 Hourty METEOROLOGICAL OBSERVATIONS, DECEMBER 19—22, 1845.
EE —
THERMOMETERS. WIND. Pitas
Gott BaRo- mh ase
Mean || METER Maximum ete 1 es q Species of Clouds and Meteorological Remarks
Time. || at 32°. || Dry. | Wet. | Diff. force in |fyom ae clouded.
14. ,10™,
d. h. in. 2 X e lbs, lbs. pt. pt. pt. pt. 0—10.
19 13 || 28-292 || 33-5 | 32-8 |0-7 ||0-9 | 0-0 | 22 3-0 || Scud and cirro-stratus.
14 287 || 35-0 | 33-9 | 1-1 | 0-0 | 0-0 | 18 9-7 Id.
15 282 || 33-4 | 32-7 |0-7 | 0-1 |0-1 | 18 | 3-0 Td.
16 283 ||35-0 | 34-0 | 1-0 ||0-1 | 0-0 | 24 3-0 || Send ;, cirro-cumulo-strati.
7/ 298 || 34-3 | 33-4 |0-9 | 0-1 | 0-0 8 9-8 Tah: id.
18 319 || 33-7 | 33-1 |0-6 || 0-0 |0-0 | 16 | 10-0 lige id
19 356 || 34-0 | 33-4 |0-6 |0-0 |0-0 | 22 10-0 Id. ; id.
20 393 || 35-4 | 34-1 |1-3 |/0-1 | 0-1 | 30 9-5 libs nil = faint corona.
21 400 || 36-0 | 34-4 | 1-6 | 0-3 |0-3 | 31 0:—:—|| 10-0 Id.; cirro-strati. .
22 469 || 35-9 | 33-9 |2-0 ||0-5 | 0-3 | 28 0:—:—)| 9-9 || Cirro-stratous scud ; cirro-strati; clouds broken,
293 502 || 35-2 | 34-6 |0-6 ||0-7 | 0-6 | 28 1:—:— 9-0 lids 1d. woolly cirri to
20 0 531 || 36-6 | 34-4 | 2-2 0-6 |0-3 | 28 || O: 2:—] 9-5 | lal & woolly cirro-cumuli.
1 563 || 37-8 | 35-3 | 2-5 || 0-4 | 0-4 | 28 1:—:—J/ 9.9 || Seud.; cirro-strati.
D) 586 || 38-4 | 35-8 |2-6 | 1-1 | 1-1 | 31 |—: 1: 7-5 || Loose cirro-strati; cirro-strati; woolly cirri.
3 631 || 38-7 | 36-2 | 2-5 S| Or est 0: 2: 2) 6-0 || Loose and cirro-stratous scud ; woolly cirri.
4 681 || 39-2 | 36-3 |2-9 ||/2.0 | 0-3 | 30 1:—:—]| 9-8 Id.
5 722 || 39-4 | 36-3 {3-1 1-5 | 1-1 | 31 Q0:—-:—)| 8-0 || Cirro-strati and cirro-cumulo-strati.
6 770 || 38:3 | 35-5 |2-8 || 1-5 |0-6 | 28 1-5 || Seud and cirro-strati.
a 811 || 35-3 | 34-9 | 0-4 10-9 |0-7 | 30 10-0 || Rain.
8 854 || 36-2 | 35-3 |0-9 | 1 0-8 | 29 10-0 | Id.
9 899 || 39-1 | 37-1 | 2-0 || 2-8 | 2-9 | 31 || 10-0 || Dark; drops of rain.
10 || 28-951 || 39-3 | 36-7 | 2-6 | 3-8 | 4-3 | 30 10-0 || Id.
11 || 29-010 || 38-2 | 35-7 | 2-5 14.2 |4-0 | 31 10-0 || Id.
12 072 || 38-8 | 36-4 | 2-4 || 4-2 | 2-2 | 30 10-0 Id.
233) 29-514 || 33-7 hae .-- | 8-6 |0-8 | 30 ee pe 3.0 || Masses of scud and loose cum.; a slight sprinkling of dry, po
2 Bal) B65. SAF) OLR ee lest eoel SerellD bs Ge Ball stoke (now 5, Chevioliaaas
13 || 29-439 || 34-0 | 31-8 | 2-2 |/2-3 |.0-4 | 18 10-0 || Cirro-stratus ; stars dimly visible in zenith.
14 387 || 34-9 | 32-7 | 2-2 10-6 | 0-9 | 19 10-0 Id.
15 330 || 34-3 | 33-2 |1-1 || 1-0 | 1-5 | 19 10-0 | Id. ? slight fall of snow since last hour.
16 253 || 35-1 |33-8 | 1-3 || 2-2 | 1-1 | 19 10-0 | Id. ? drops of rain.
17 147 || 35-5 | 34-3 | 1-2 || 2-3 | 2-8 | 20 10-0 | Id. 2 rain?”
18 || 29-028 || 36-5 | 35-0 |1-5 | 4-8 | 3-8 | 20 10-0 | Scud; cirro-stratus? rain”?
19 || 28-936 || 37-5 | 36-0 | 1-5 | 5-2 |3-3 | 18 10-0 || Id.; id. ; id.
20 898 || 38-3 | 37-1 | 1-2 13-8 | 1-7 | 19 10-0 || Id
21 832 || 39-2 | 38-1 | 1-1 | 2-4 |0-6 | 21 | 25:—:—J 10-0 Id.
92 793 ||44-2 | 41-3 |2-9 111-5 | 1-2 | 22 |95:—:—j|| 9-5 Id.; sheets of cirro-strati.
23 771 || 44-7 | 41-3 | 3-4 | 2.5 |2-6 | 25 |26:—:—|| 9-5 Id. ; id. ; mass of cirro-stratus
22 0 713 || 43-3 | 39-7 | 3-6 ||4.5 |7-8 | 26 ||—:—:28] 3-0 || Woolly cirri; cirro-strati.
1 718 || 42-5 | 39-4 |3-1 ||3-9 | 1-7 | 27 || 1-5 || Cumulo-strati and cirro-strati round horizon.
2 719 || 42-7 | 39.2 |3-5 ||2.8 | 2-7 | 95 1-5. | . Id.
3 685 | 41-8 | 38-2 | 3-6 | 2-6 | 2-3 | 23 |25:28:—|| 3-0 || Scud moving rapidly ; loose cirro-strati.
4 668 || 40-7 | 37-4 |3-3 | 2-3 |0-6 | 26 || —: 28 : — 6-5 || Cirro-stratous scud.
5 655 || 38-5 | 35-6 | 2-9 || 2-8 | 1-3 | 23 1-0 || Seud and cirro-strati on horizon.
6 637 || 38:3. | 35-2 |3-1. || 1-8 | 1-5 | 24 0-8 || Cirro-strati on horizon. 4
7 617 || 38-9 | 35-5 | 3-4 || 2-7 | 1-8 | 23 | 5-0 | Thin cirro-stratus ; stars seen dimly through most
8 610 || 37-1 | 34-3 | 2-8 |}2-0 | 0-9 | 24 | 6-0 || Clear.
9 590 || 36-8 | 34-2 | 2-6 || 1-0 | 0-8 | 25 | 0-0 Id.
10 568 || 37-2 | 34-1 |3-1 | 2-4 |1-9 | 25 0-0 Id.
ll 564 || 37-3 | 34-4 | 2-9 ||3-2 | 2.1 | 26 | 0-5 || Seud on E. horizon.
12 570 || 37-2 | 34-3 |2-9 | 3-1 |1-6 | 26 0-3 Id.
13 || 28-601 || 37-3 | 34-1 | 3-2 ||2.8 | 2.9 | 97 2-0 || Scud.
14 639 || 35-2 |34-1 | 1-1 || 4-1 | 1-0 | 28 , 3-0 || Thin scud; slight showers lately.
15 661 || 35-8 | 34-4 | 1-4 || 1-8 | 1-1 | 27 10-0 || Rain®®
16 689 || 37-8 | 35-7 | 2-1 |-2-7 | 2-5 | 28 | 10-0 || Scud.
17 754 || 39-3 |36-3 | 3-0 || 4-1 12-6 | 28 | 9.9 || Thick scud. °
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, 8.=16, W.=
motions of the three strata of clouds, Sc. (scud), O.-s. (cirrostratus), and Ci. (cirrus), are indicated in a similar manner.
a
Hovurty METEOROLOGICAL OBSERVATIONS, DECEMBER 22—25, 1845. 269 |
THERMOMETERS. WIND.
Baro- ||———_____—_
METER Maximum
at 32°. || Dry. | Wet. | Digt.|| force in |From
Sk
Date ab Species of Clouds and Meteorological Remarks.
in. © 5 3
28-819 ‘7 |35-7 | 1: : : . Shower!—? of rain and hail.
885 ‘0 | 35-4 | 2. . : | , Scud on horizon.
|| 28-971 +3 | 35-5
1 || 29-040 ‘7 | 36-5
2 37-6
38-2
39-2
39-6
39-2
39-0
38-3 i
37-3 : : : . Scud ; cirro-stratus.
37-6 | 3- : . : Id. ; id.
37-2
36-5
36-5
35-7 ;
34-8 | 2. : : . - on horizon.
34:3
33-8 | 2. . : . Scud.
33-5 | 2. . . . Id.
34-0 | 1- . : : Id.
32-0 | 2. : : . Clouds on E. horizon.
31-0 | 1- : : . Id.
29-4 | 1- : : : Clear.
27-4 |0- : : . Id.
: Thin cirri and cirrous haze ; lunar corona.
27-5 : . ‘ : 2 . Orange-coloured woolly and linear cir, radiating from NNE. and SSW.
29-4 | 1- : : 1: . Woolly cir, and cir. haze radiating from N by E. and
30-9 | 1- . : :—: . As before. e [S by W.
32-1 | 2. . . : Cirro-strati and cirrous haze ; traces of a solar halo. ©
33-9 |3- . : . Ile id. e
34-1 | 2. . . : As before, clouds becoming thicker.
35-1 | 2. : . : 30: . Cirro-strati ; cirro-cumulo-strati and cirrous haze.
35-7 | 2- . . 127 2 . As before.
37-3 | 2. . . 228: : Patches of scud to S. ; cir.-str. in dense irregular masses.
Scud.
Id.; stars dim.
Id. ; drops of rain.
Id.; very dark.
Very dark.
Id.
Id.
Very dark.
Id.
Id. rain?’8
Stars faintly visible here and there; rain®
Dark; rain”?
Id.; drops of fine rain.
Scud; clouds broken ; rain”?
Cirro-stratous seud ; cirro-strati; cirrous haze. )
_— . Cir.-cum. radiating from WSW.; woolly and linear cirri from SW. ;
: 24 : Various cirri; cirro-strati. @ __ [send on horizon.
. Id. ; id.
—:—:24 : Id. ; id.
=a 5 BE : Id. ; cirrous haze,
|
lox
cirro-strati.
: id.
Loose cirro-strati ; loose scud and cirro-strati.
Scud and cirro-strati ; cumulo-strati.
passing showers.
i a)
wo co
41-2
41-3
42-2
42:9
43-7
44:3
44-7
44:8
45-1
45-2
45-7
43-3
40-0
39-6
40:5
40-4
41-2
SO eS SO
a Pe ROWH HKHRWKH Or
or —— DLO — — — LO
LFOUODwWe WOOF
5 CUO AS SS et eh ee ee eae
QS
to to
te direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, H.=8,S.=16,W.=24. The
mcons of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
pe. 232218, Sky of a beautifully-green colour to SH.
AG. AND MET. OBS. 1845, ee
270 Hourty METEOROLOGICAL OBSERVATIONS, DECEMBER 25—27, 1845.
THERMOMETERS. WIND.
Clouds,
ae co Maximum Se. : C.-s.:Ci.,|| Sky Species of Clouds and M logical a
Time. || at 32°. Dry. | Wet. | Diff. force in |Prom ema clouded. pecies of Clouds and Meteorologi Remar .
1h,; 10™
eee in. of 2 lbs. | Ibs. pt. pt. pt. pt. 0—10.
25 2|| 29-913 || 44-7 | 41-0 | 3-7 || 0-3 |0-2 | 20 || 24:—:—|| 3-0 || Masses of loose cumuli; thin cirri.
3 918 || 44-3 | 40-6 | 3-7 ||/0-4 | 0-4 | 20 || 25:—:—] 2.0 Id. ; id.
4 934 | 42-9 | 39-6 | 3-3 ||0-4 | 0-3 | 21 || 25:—: 25 6-0 || Patches of scud ; mottled cirri and small cirro cun
5) 950 | 39-1 | 37-2 | 1-9 ||/0-2 |0-0 | 20 || 25:—:26] 7-5 Id. ; beautifully-mottled and lin.
6 974 || 41-4 |38-6 | 2-8 ||/0-2 |0-2 | 21 3-0 || Seud. LN. and 8.
a 973 || 37-9 | 36-4 | 1-5 || 0-2 |0-1 | 20 1-5. || Id.; cirro-strati.
8 973 || 37-4 | 36-4 | 1-0 || 0-2 | 0-0 | 20 1-5 || Thin cirrous clouds and cirro-strati.
9 969 | 36-8 | 36-0 |0-8 ||0-2 | 0-1 | 25 5-0 || Cirro-stratus and cirrous haze.
10 948 | 38-0 | 37-1 |0-9 ||0-2 |0-1 | 20 7-0 Tat: sky very hazy. —
il 926 | 38-5 |37-5 |1-0 ||0-3 |0-0 | 19 5-0 Id.
12 895 || 37-0 | 36-3 |0-7 ||0-1 |0-0 | 19 8-0 Id.
13 || 29-860 | 38-0 | 37-3 |0-7 ||0-1 | 0-0 | 16 10:0 || Thick cirro-stratus.
14 812 | 40-0 |39-0 | 1-0 || 0-2 |0-1 | 16 10-0 Td.
15 766 | 40-5 | 38-8 | 1-7 ||0-9 | 1-0 | 17 9-0 Id.
16 718 || 40-1 | 38-4 | 1-7 || 2-4 |0-8 | 18 4:0 || Cirro-strati.
17 662 | 40-3 | 38-4 | 1-9 [11-3 |0-1 | 17 10-0 || Dark.
18 601 | 41-7 | 39-5 | 2-2 || 2.0 | 1-3 | 18 10-0 || Id.; drops of rain.
19 561 || 40-5 |39-7 | 0-8 ||0-5 | 0-0 | 18 10-0 || Id.; rain?
20 492 || 43-3 | 42-4 |0-9 ||0-1 | 0-1 | 20 ||} 20:—:—| 10-0 || Send.
21 433 || 46-9 |45-2 | 1-7 ||2-1 | 1-8 | 20 || 21:—:— || 10-0 Id.
22 407 | 46-3 | 44-7 | 1-6 ||3-7 | 1-9 | 18 |} 21:—:—| 10-0 Id.
23 371 | 46-7 |45-0 | 1-7 || 1-3 |0-9 | 18 |} 21:—:—j| 10.0 Id.
26 O 317 ||46-8 | 45-4 | 1-4 14-8 | 1-7 | 18 |121:—:—]| 10-0 Id.
1 251 || 47-4 |45-9 | 1-5 || 3-8 | 2-2 | 19 || 21:—:—H 10.0 Id.; drifting rain!
D) 200 || 47-6 |46-0 | 1-6 || 4-2 | 2-2 | 20 || 20:—:—]) 10-0 des id.
3 162 | 47-3 | 46-3 | 1-0 || 3-6 | 2-1 | 17 || 20:22:— |! 9.9 || Id.; mass of cirro-stratus ; rain?
4 145 ||48-0 |46-7 | 1-3 || 1-9 | 0-6 | 20 ||22:—-:—J|| 10-0 || Id.; cirro-cumulo-strati; cirro-strati.
5 168 || 45-7 |41-8 |3-9 || 3-7 | 1-2 | 20 || 24:21:—]] 7-0 Tas ides rain? —
6 162 | 44-5 |41-0 |3-5 || 2-3 | 2-8 | 21 1-0 || Loose smoky scud; cirro-strati; sky looking wi
7 170 | 41-6 | 38-0 | 3-6 || 3-8 | 2-2 | 20 4-0 || Scud on horizon.
8 162 || 40-9 | 36-8 | 4-1 || 4-5 |1-8 | 19 1-0 Id. 4
9 165 || 40-0 | 36-6 | 3 3-7 |3-9 | 20 0-4 Id. [off scons a Haale lightnin
10 165 || 36-5 | 35-6 |0-9 ||6-6 | 2-9 | 20 10-0 Very dark ; shower lately, with heavy gusts of wind; clouds
11 172 || 36-2 |35-0 | 1-2 || 4-3 | 2-0 | 21 2-0. || Scud; rain? at 105 55™,
12 212 | 36-8 | 34-8 | 2-0 || 2-6 | 1-6 | 20 3-0 || Scud and cirro-strati.
13 || 29-228 | 37-6 | 35-3 | 2-3 || 1-1 |0-2 | 22 7-5 || Scud and cirro-strati.
14 262 || 38.2 | 35-3 | 2-9 {11-3 | 0-8 | 21 3-0 Id.
15 294 || 36-8 | 35-0 | 1-8 || 3-0 | 0-2 | 24 7-5 Id.
16 324 || 36-0 | 34-8 | 1-2 || 2-7 | 0-5 | 22 2-5 Tdes drops of rain.
17 348 | 37-0 | 35-2 | 1-8 || 1-3 | 1-5 | 22 3-0 Nd: rain"?
18 389 || 36-0 | 34-4 | 1-6 || 2-4 | 1-6 | 24 10-0 || Seud; rain!
19 434 || 33-6 | 33-2 | 0-4 || 2-3 | 2.3 | 22 10-0 || Snow!
20 445 | 33-9 | 33-3 |0-6 || 2-4 10-4 | 24 9-5 || Seud and cirro-strati.
21 478 | 36-0 | 33-9 | 2-1 || 1-3 | 1-7 | 22 9-8 Td 5 snow!
92 D2 360M 33-852: 2all Qed en || Oe ee 9-8 || Loose scud ; cirro-strati; snow’?
23 515 | 35.2 [34-0 | 1-2 || 0-8 | 0-4 | 24 || 26:—:—|| 5.0 || Loose nimbi and seud ; cir.-str. ; cirri ; passi
27 (0) 524 | 36-8 | 34-8 | 2.0 || 2-1 |0-3 | 20 7-0 || Thin cirro-strati and cirrous haze. (2)
1} 516 | 38-6 |36-0 |2-6 || 0-6 |0-3 | 20 | 24:—:— | 10-0 || Masses of scud ; cirro-stratus and cirrous haze,
2 489 | 37-7 | 36-0 | 1-7 ||0-8 | 0-1 | 20 || 24:—-:— 1] 10.0 tdi id. ; becoming thie
3 449 | 37-9 | 36-1 | 1-8 || 1-1 |0-6 | 19 || 23:—:—] 10-0 IG ae id.
4 405 | 38-4 | 36-7 | 1-7 || 1-8 |0-3 | 19 || 22:—:—|| 10-0 1G id.
5 296 || 39-6 | 37-8 | 1-8 |} 1-2 | 1-0 | 17 || 19:—:—J| 10-0 || Thick ava rain??
6 184 | 40-7 | 39-4 | 1-3 || 1-8 | 2.2 | 18 10-0 Id. ; rain2—3
7 || 29-089 | 40-6 | 39-8 | 0-8 || 5-0 | 4-5 | 18 10-0 Id. ; rain® ; very stormy.
8 || 28-964 | 43-0 | 42-0 | 1-0 || 5-1 13-9 | 17 10-0 || Scud; rain®? ; id.
9 889 | 46-0 | 45-2 |0-8 || 4-2 | 2.6 | 20 10-0 |! Id.; rain!
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.= 8, 8.= 16, W.= = 24
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Hovurty METEOROLOGICAL OBSERVATIONS, DECEMBER 27—30, 1845.
THERMOMETERS.
Maximum
force in
yh, | 107.
Dry. | Wet. | Diff.
48-2 | 47-0
52-1 | 47-8
49-6 | 44-6
35-7 | 33-6
30-8 | 29-6
30-3 | 29-2
29-1 | 28-4
27-6 | 27-6
29-6 | 29-1
29:9 | 29-5
33-2 | 31-8
35-2 | 32-7
35-6 | 33-8
37-2 | 35-3
38-3 | 36-4
39-6 | 37-0
41-0 | 38-1
39-4 | 38-3
39-2
39-8
40-4
44-6
46-7
48-6
49.4
49-0
49.7
50-0
49-9
6 BROS
——
OOm WNP DHE ant COCWFHTFWOWOUNeH OD
PPE BOB
Tole) CONSO SSP ie
m— Ww O or OH NI bo 00
45-6
46-1
45-3
46-7
45-7
45:5
44-8
38-9
39-7
34-4
42-6
38-8
37-7
36-0
35-6
33-4
34-3
32:7
33-0
35-8
33-2
32-0
31-4
30-3
30-7
30-2
30-7
32-7
FSOSCHIGAAWNKOCHNHKSHHTSA: oo
‘he direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E.= 8, 8.= 16, W.= 24,
.-8. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
utions of the three strata of clouds, Sc. (seud), C
Dec. 274 12h 16m. Barometer 28-879.
Dec, 304 4h,
idly.
WIND.
From
Clouds,
Se. : C.-s.:Ci.,
moving
from
pt. pt. pt.
Sk
y
clouded.
271
Species of Clouds and Meteorological Remarks.
Scud.
Id.; cirrous scud ?
Thin scud ? stars very dim.
| Sunday—a.m. Dense cirro-stratus, breaking up about
04. p.m. Sheets of woolly cirri.
Clear.
Td.
Id.
Cirro-strati and thin haze.
Id.
Cirro-strati and cirrous haze.
Cirri, radiating from SE. ; cir.-str. and cirrous haze.
Id. ; id. ; clouds red to SE.
As before ; patches of scud.
Seud ; woolly cirri and cirro-strati; cirrous haze.
Id. ; id.; cirro-cumulo-strati ; id.
Id.; cir.-str. ; mass of cir.-str.; sky looking wild.
Id.; thick woolly cirri and cir.-str. ; sheets of cir.-str. ©
Id.; mass of cirro-stratus; rain!
Id. ; id.
Td; id.
lgke id.
Id.
Id.
Stars indistinctly visible.
Seud and cirro-stratus ; drops of rain.
Id. ; id.
IGS rain?
Id.
Seud and cirro-stratus ; drops of rain.
Id. ; rain!
Td.
Vole stars dim.
Ifel id.; rain
Td.
Rain®®; a few stars occasionally visible.
Scud and cirro-strati on horizon.
Cirro-stratous and loose scud ; cirrous haze.
Seud ; cirro-strati; rain!—?
Scud and nimbi.
Seud and loose nimbi ;
Scud; cirro-strati and loose nimbi ;
Id.; drops of rain.
Id. ; id.
Thick seud ; rain!
Seud ; cirro-strati ;
; rain!
passing showers.
rain”?
cirro-cumulo-strati.
Seud on E. horizon.
Id.
Hazy on horizon.
Id.
Hazy on horizon.
Cirro-strati to E. and N.
Td.
“The
The wind commenced to blow violently at 4" 0™, and changed its direction about the same time; the barometer rising
Gott. BaRo-
Mean METER
Time. || at 32°.
ds) he in.
30 16|| 29-605
7s 612
18 626
19 638
20 636
21 617
22 613
23 605
31 O 546
1 480
2 420
3 366
4 290
5 213
6 136
ws 071
8 || 29-025
9 || 28-971
10 970
11 980
12 982
HovurLy METEOROLOGICAL OBSERVATIONS, DECEMBER 30—31, 1845.
THERMOMETERS,
Dry. | Wet.
35-9
37-2
34-0
35-2
35-1
34-7
34:0
36-5
36:8
37:7
39-7
40:5
40-4
40-0
39-6
39-3
38-6
39-4
40-5
42-3
42:3
38:8
38-0
Diff.
RO ee 1 IE Oe
NADAARNME OO ®
WIND.
Maximum
force in | from
i
1-6
Bee OCOOR ==
m Crm CO DO Cr Cr CO HAT
pt.
pt.
Clouds,
Se. : C.-s. :Ci.,
moving
from
pt.
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Cirro-strati to E. and N.
Id.
Loose cirro-strati.
Cloud radiating from SE.
Scud and cirro-strati; cirrous haze ; clouds tinged 1
Cirro-strati, cirro-cumulo-strati, and cirrous haze,
Loose seud ; scud ; cirro-strati; mass of cirro-strat
Scud ; cirro-strati; mass of cirro-stratus.
Id.; cirro-cumulo-strati; cirro-strati.
Id.; cirro-strati; mass of cirro-stratus.
IGES id. ; id.
Ge id. ; id.
Ide id. ; id, * rain”?
Id. ; id.; rain!
Id. ; id.
Td. ; id.
Td. ; id.
dp: (Be drops of rain.
IGE id.
Id.
Id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8,8.=16,W.=24. 1@
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
|
|
1
ye
en
Pe ee eee ey ee, vie
hall vf ne ao
DAILY AND EXTRA
MAKERSTOUN OBSERVATORY,
1845.
;, AND MET. ogs. 1845.
METEOROLOGICAL OBSERVATIONS.
274 DaILy METEOROLOGICAL OBSERVATIONS, JANUARY—JUNE, 1845.
TEMPERATURE.| RADIATION. | Rainin|| TEMPERATURE.| RADIATION. | Rainin|| TEMPERATURE.| RADIATION.
Gauge a Peas Pedal Rae ae eee
Max. |at Noon.|| Min.
Max. |at Noon. Min. Max. Min. Max.
Max. Min.
Min.
Max. Min.
J ANUARY. Marcu. May.
1 25-2 | 33-4 | 23-5 | 39-0 |0-000 || 26-7 | 36-2 | 22-7 | 37-7 |0-000 | 48-5 | 57-2 | 45-4 | 76-1
2 28:2 | 36-4 | 24-1 | 40-9 -000 |} 31-9 | 45-1 | 30-7 | 45-2 +113 | 42-2 | 56-2 | 39-2 | 81-0
3 29-5 | 38-8 | 25-7 | 38-8 -000 || 34-5 | 37-9 | 33-5 | 39-5 -175 || 42-4 | 55-2 | 38-7 | 80-5
4 | 32-0 | 44.02| 27-3 | 44-02] -000 | 29-4 | 36-9 | 26-3 | 39-8 | -000 | 37.2 | 53-2 | 30-6 | 90-0
5 44:02| 51-2 | 44.02] 51-0 | ----.- 19-6 | 36-5 | 13-0 | 59-7 052 | 35-8 | 49-6 | 29.2 | 81-0
6 42:0 | 50-02] 39-3 | 49-1 | -000 || 20-3 | 36-9 | 14-3 | 41-5 | -057 | 36-0 | 50-8 | 26-4 | 73-3
a 29:2 | 37-9 | 23-6 | 55-8 -018 || 31-9 | 42-1 | 28-8 | 56-7 -000 | 38-2 | 47-3 | 38-0 | 53-3
8 .
9
27-8 | 43-2 | 24.3 | 62-4 000 |} 32:9 | 44-4 | 29-2 | 46-4 | «----- | 34-0 | 50-4 | 27-4 | 71-0 | -19,
10 26-1 | 47-0 | 20-4 | 46.7 003 || 37:0 | 46-4 | 32-2 | 47-5 104 39-3 | 50-3 | 36-3 | 65-8 0
11 40-1 | 43-9 | 36-1 | 54-5 052 || 27-4 | 36-9 | 23-0 | 46-8 046 || 35-9 | 61-0 | 29-5 | 96-7 | --am
12 30-0 | 40-3 | 24-8 | -cceee | seeeee 21-7 | 35-0 | 12-8 | 48-5 057 || 40-2 | 56-4 | 33-4 | 99-0 -000
13 24-4 | 40-4 | 21-3 | 51-5 014 || 16-8 | 34-3 | 11-0 | 58-7 000 || 38.2 | 54-8 | 39-9 | 77-5 17
14 33:4 | 43:0 | 27-8 | 44-0 004 || 21-0 | 36-4 | 15-2 | 50-4 000 | 31-5 | 59-3 | 27-8 | 80-6 @
15 35-2 | 45-5 | 30-7 | 56-5 000 || 17-6 | 35-9 | 12-5 | 55-3 300 | 41.2 | 67-0 | 33-8 | 81-2 | -OF
16 24-1 | 31-7 | 21-8 | 32-2 000 || 15-3 | 33-8 7-7 | 50-2 | ceveee 46-2 | 65-6 | 41-6 |102-0 -000
hey 24-0 | 44-8 | 20-1 | 51-0 000 || 24-0 | 40-2 | 22-0 | 51-7 022 | 45.4 | 56-0 | 43-3 | 92-5 -06:
enews
bo
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j=)
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a
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uw
lee}
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~“
_
or
ay
_
oO
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w
in?)
—
i)
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rs
oo
bo
or)
eo
wo
Or
ww
<
J
ie)
or
vo
as
m>
Oo
bo
ww
w
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bo
bo
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i=)
jon
&
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—
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ow
143
-004
-006
-C
-0
-O0€
-O6€
-000
-000
006
w
a
|
bo
i=)
bo
Se
ies)
]
_
on
i=)
or
Oo
or
(=)
S
So
ww
[or]
lor)
or
on
bo
ww
—_
~I
lea)
(—)
[=r)
S
vo)
Oo
w
ae!
bo
aD
_—
~T
bo
©
[o'9)
a
i=)
Qo
bo
27 27-9 | 42-3 | 24.0 | 67-6 000 || 45-2 | 57-7 | 41-0 | 73-7 | «sees 37-9 | 62-3 | 32-5 | 81-5
28 31-2 | 39-3 | 24-7 | 48-7 000 || 45-7 | 58-3 | 42-0 | 69-2 | -111 | 47-0 | 51-6 | 46-5 | 68-4
29 40-9 | 59:5 | 35-8 | 81-0 076 || 38-0 | 60-4 | 32-5 | 95-7
30 45-2 | 62-4 | 42-8 | 77-8 032 || 46-8 | 64-1 | 45-1 | 93-5 —
DAILY METEOROLOGICAL OBSERVATIONS, J ULY—DECEMBER, 1845. 275
TEMPERATURE.| RADIATION. | Rainin|| TEMPERATURE.| RADIATION. Rain in|| TEMPERATURE.| RADIATION. | Rain in
eel (ona RT|, OLUEC. || TGRiGa) = as ce | raape Gauge
Min. Max. Min. Max. |at Noon.|| Min. Max. Min. Max. |at Noon.|| Min. Max. Min. Max. |at Noon.
° i ° ° ° ° in. ° °
JULY. SEPTEMBER. OVEMBER.
45-7 é f F ; 113-5 ‘ : 33-0
44:8 : 16 . Fla 0) | 9% Bi 28-8
41.8 5 |: ; 8 | 32:0 |103-4 | - ; 38-1
46-2 5 : . 9. i rela lt : : 22.0
33-4 OH 5. 5 1\. 95-5 | - ‘8 | 17-8
41-6 ; . : 8 | 94-6 | - 33. 8 | 29.5
51-8 . . 3 {100-0 : 6 | 440
43-2 F : : : 35. 90-5 . : ; 42.5
47.2 ; 9. ' 69-5 F 9. , 35.2
44.4 é : : ‘ 4. j ; : 30.2
37-8 ; : : ; ; ‘ 35. : 31-0
36-9 : : Wi i . ; F F 28.8
35-5 : ; : 9. : : 30- 6 | 27.5
47.5 ‘ 4 Bs i : F : 24.0
36-0 ‘ : ; Bl Sie ? : 3. 6. 24-6
35-5 F ; : : : : - : ; 40-8
34.2 : 05 9. ( : ‘ : ‘ 37-0
44.7 é ¢ : ‘ : : : ; 28-0
38-8 : 6
46-7
50:8
48:8
47-2
32-5
37-2
39-4
35-0
37-8
OcTOBER. DECEMBER.
34-7 : : : : 31-8 | 45-0
40-5 : 2 5 : é 43.3
49.9 d 5 ‘ ci A 46-4
40-0 5 . ). J O 50-5
23.7 : : ; : ; 50-4
37-5 6 6 , ‘ " ; 47-5
31-8 . ri cd + e 46-5
35:4 : : . : 2. 47-3
32.2 : é 4 { 48-5
32-8 : : : 52-4
41-5
46-5
46:5
51-0
41-0
49-3
45-0
47-5
46:5
44-5
46-5
42-0
38-2
55-7
46-7
41-5
56-2
50-6
51-2
43-8
276 EXTRA METEOROLOGICAL OBSERVATIONS, 1845.
NOTES TO THE OBSERVATIONS OF THE SELF-REGISTERING THERMOMETERS.
d. ih.
Jan. 4 23. The temperature has risen during the night, so that no minimum could be obtained; the ma
mum given for Jan, 44 most probably occurred this morning (Jan. 52)
Jan. 11 The maximum temperature given occurred between 104 19 and 104 225,
Jan. 22 The minimum temperatnre seems somewhat uncertain.
Jan, 24 The maximum temperature seems somewhat uncertain.
Jan. 31 The minimum radiation thermometer and the standard thermometer immersed in snow, at a ten
perature of 32° and of 20°, when the former read 0°1 less than the latter. A new coati
of lamp-black varnish put over the mimimum radiation bulb, which was afterwards roughene
Feb. 3 About 1°-5 of alcohol found detached in the minimum radiation thermometer ; the thermome
was adjusted Feb. 8" 4", and the observations previously were corrected for the induced ind
error, which has been done in all similar cases. :
Mar. 15 5. The temperature has been varying much and irregularly to-day ; the reading given is quite ace
rate; the maximum, therefore, probably occurred before 1".
Mar. 21 22. There has been no minimum during the night.
Mar. 23 20. About 0°7 of alcohol found detached in the minimum radiator ; this must have again joinedt
column of alcohol, as it could not be seen on the 28th.
Apr. 11 The minimum temperature from the self-registering thermometer lost ; the quantity given is es
mated from the observations of the dry-bulb thermometer.
Apr. 16 The bulb of the minimum radiator was covered anew with lamp-black, the last coatiug ha ving
been nearly washed off by tbe rai. The maximum radiator was placed about 3 inches abo
the surface of the soil, and a shade from the wind was placed round it: it has been 15 inche
above the soil since November.
Apr. 30 20. About 0°-4 of alcohol found detached in the tube of the minimum radiator; the bleb was ne
the top of the tube on May 5, and on May 6¢ 5h it had disappeared.
July 18 7. 2°-6 of mercury found detached from the column in the maximum thermometer.
July 27 22. The index of the maximum thermometer out of order; the temperature at 274 25 was 66°4
Aug. 6 8. The speculum of the minimum radiator was resilvered. [the dry-bulb thermometer
Sept. 1 The bulb of the minimum radiator was reblackened.,
Oct. 380 The mercury and index of the maximum thermometer adhere.
Nov. 10 and 184. The index of the maximum thermometer has probably been adhering to the mercury.
Dec. 25 The maximum radiating thermometer raised 18 inches above the soil, in order to allow the si
to shine more perfectly upon it.
Dec. 30 1. The minimum thermometer was set at 1934, The maximum is that since Dec. 294 22,
TEMPERATURE OF WATER IN PUMP WELLS.
por Temperature of Water. hy Temperature of Water. Pics Temperature of V
Gottingen Gottingen Gottingen 3
ann Pump Wells. — Pump Wells. seas Pump Wells
Observations. Cottage. Guten Observations. Cottage. ardent Observations. Cottage: E
d. oh. : & hk , he 4
Jan. 6 5 44.4 47-7 May 12 5 44-0 Sept. 15 5 49-6
13 5 44-1 47-6 20 5 44-6 22 9 49-7
20 5 43-7 47-3 26 5 44-8 29 5 49-7
27 5 43-6 47-1 June 2 5 45-2 Oct. 6 5 49-6
Hebs Woigso 43-1 See mea 45-4 13 6 tee
10 5 42-6 16 5 46-0 14 4 49-4
17 5 42:3 23 «5 46-2 PA 5) 49-1
24 5 42-3 ae 30 5 46-6 Dalieo 49-0
Mar. 3 5 42-1 46-1 Julyued ied 47-3 Nov. 4 5 49-0
10 5 42-0 46-1 14 5 47-5 10) 5 48-3
17 5 41-6 45-7 2a 5 47-8 Lik 47-6
24 5 41-6 45-9 28 #5 48-1 24 5 47-2
April 2 5 41-9 46:3 Aug. 4 5 48-4 Decig Lovo 47-0
7 5 42-2 46:5 ll 5 48-7 8 5 46-2
14 5 42:5 46-6 18 5 49-0 15~ 5 45:5
21 5 oe 46-6 26 5 49-1 22 5 45:0
28 5 43-1 46-7 Sept. 1 5 49-4 31 5 44-6 |
May 5 5 43-7 46-8 So) 49-4 “
EXTRA METEOROLOGICAL OBSERVATIONS, 1845. 277
ACTINOMETRER.
Ob ti Makerstoun Ob ti
In Sun Servation. | Change| Effect | Mean | Sun’s Mean Time | 0 Sun servatlon. | Change| Hffect | Mean | Sun’s
or in of of Alti- Of or in of of Alti-
Shade. Begun.|Ended. 60s. | Sun. |Group.| tude. | Pirct Reading. Shade. |Begun|/Ended. 60s. | Sun. |Group.| tude.
Se. div.}Sc. div.| Sc. div. | Se. div. ] Se. div. c ad Beier S : Se. div.| Sc. div.} Se. div. | Se. diy.| Sc. div. si
Marcu, 11, 12. Marcu 12.
Sun | 25-4 |29-0 | +3-6 12 2 9 30| Sun |19-4 |22-1 | +2-7 | 3.5 }
Shade] 29-0 | 28-2 | —0-8 | 4-4 4-50| 30.7 11 0} Shade} 22-0 | 21-1 | —0-9 | 3-6
Sun | 28-2 |31-9 | +3-7 | 4-6 } 12 30} Sun | 20-9 | 23-5 | +2-6 | 3-5
Shade | 31-8 | 30-8 | —1-0 14 0O| Shade} 23-3 | 22-4 | —0-9 | 3-4 }3-47| 25.8
Be 36.7 139.3 | aaa 15 0} Sun | 22-4 |24.8/ +24 | 3.2
> 16 30} Shade | 24-7 | 23-9 | —0-8 | 3-4
Shade] 32-1 | 31-5 | —0-6 | 4-1 17 30| § 93 26-7 9.8 | 3-7
Sun [31-5 |35-0| +35 | 4.4 i cE eee |
19 O| Shade | 26-6 | 25-7 | —0-9
Shade | 34-7 |33-5 | —1.2 | 4.6
Sun | 32-9 |36-2 | +3-3 | 4.5 |(4-19] 30-9
Shade| 35-7 |34-6 | —1-1 | 4-0 Marcu, 12, 13.
Sun |34-6 |37-1 | +25 | 3.6 12 21 23 12| Sun |17-1 |18-8 | +1-7
Shade |36-7 |35-5 | —1-2 | 4.1 24 42| Shade|18-7 118-2 | -—0-5 | 2.2 /)
Sun |35-5 |38-8 | +3.3 25 42| Sun |18-2 |19-9|+1-7 | 2-3
tise deeded 27 12| Shade| 19-7 |19-0 | —0-7 | 2-4
k 28 12) Sun | 19-0 | 20-7 | +1-7 | 2-4
Shade| 16-7 |15-9 | —0.8 | 3-7
29 42| Shade| 20-4 |19-7 | —0-7 | 2-3
Sun |15-9 |18-9 | +3.0 | 3-8
30 42| Sun |19-7 | 21-3 |+1-6 | 2.4
Shade| 18-7 |17-9 | —0-8 | 3-7
d 32 12| Shade| 21-2 | 20-4 | —0-8 | 2-5
Sun |17-9 |20-6 | 42.7 | 3-5
33 12| Sun | 20-4 | 22.2 | +1-8 | 2-5
Shade | 20-3 |19-4 | —0-9 | 3-6 :
3-77| 30-6 34 42| Shade| 22.0 |21-3 | —0-7 | 2-5
Sun 19-4 92.1 +2-7 3-7 ~ iS 23 1 8 9 5
Shade] 21-8 |20-7 | -1-1 | 4-0 Say alli taal eh Gee Laie |
37 12| Shade| 22-9 | 22-2 | -0.7 | 2-5
Sun | 20-7 |23-7|+43-0] 4-0
es 5 o54 caus & 38 12| Sun | 22-2 |24-1 | +1-9 | 2-6
Sun | 22-4 | 25-3 |+2.9 | 3.9
2-40 | 23-1
2
40 42) Sun | 23-4 | 25-3 | +1-9 | 2-6
39 42| Shade| 24-0 | 23-4 | —0.6 | 2-5
Begs) 22-9 | 23:8) — 10 42 12| Shade} 25-1 | 243 |-08 | 27 |[, ool os
Sun | 10-2 | 12-7 | +2. 43 12] Sun | 24-3 |26-3 | +2.0 | 2-8 |[7 ;
Shade | 12-6 |11-7 | —0.9 | 3-4 44 42) Shade| 26-1 | 25-3 | —0-8 | 2-7
Sam 11-7 | 14:3 4%9-6./ "3.4 45 42) Sun | 25-3 |27-1 | +1-8 | 2-7
Shade| 14-1 |13-4 | —0-7 | 3.4 47 12) Shade| 26-9 | 26-0 | —0-9 | 2-8
Sun / 13-4 |16-2 | 42-8] 3.4 48 12| Sun | 26-0 |28-0 | +20 | 2.9
Shade] 16-1 | 15-6 | —0-5 | 3-3 |t, 40] 99.4 49 42| Shade|27-7 | 26-8 | —0-9
Sun |15-6 |18-4 | 42.8 | 3.4 ;
Shade| 18-3 |17-6 | —0-7 | 3-4 12 22 9 12| Sun | 14-1 | 16-2 | +2-1
Boa | 7-6 |20'1 | 4295, |" 3.9 10 42] Shade| 16-1 | 15-3 | —0-8 | 3-0
Shade | 20-0 | 19-2 | —0.8 | 3-5 11 42| Sun |15-3 |17-6 | +2-3 | 3-1
Sun | 19-2 | 22-0 | 42.8] 3.5 13 12| Shade|17-3 |16-5 | —0-8 | 3-0
Shade | 21-8 | 21-2 | —0.6 14 12| Sun /|16-5 |18-6 | +2-1 | 2-9 143.03} 27-0
15 42| Shade|19-0 |18-2 | —0-8 | 2-9
ae seal Ae He 3-5 13.50 28-1 16 42| Sun | 18-2 | 20-4 | +22] 3-1
18 12| Shade} 20-1 |19-1 | —1-0 3.2 ||
Sun | 13-0 | 15-6 | +2-6 19 12] Sun |19-1 | 21-3 | +2-2 | 3-2
Shade| 15-3 114-4 | —0.9 | 3.5 20 42| Shade} 21-0 | 20-0 | -1-0 | 3-3
Sun | 14-4 117-0 | 42.6 | 3-4 21 42! Sun | 20-0 | 22-3 | +2-3 | 3-3
Shade| 16-9 |16-1 | —0-8 | 3-5 23 12| Shade| 22-1 |21-1 | —1-0 | 3-4 |}3.34| 27-7
Sun | 16-1 [18-9 | +2-8 | 3-6 |}3-43] 26-6 24 12} Sun |21-1 | 23-6 | +2-5 | 3-4
Shade | 18-8 118-1 | —0-7 | 3.4 25 42| Shade | 23-2 | 22-3 | -0-9 | 3-4
| aa | 17-7,| 20-3 | 4.916 | 3.3 26 42] Sun | 22-3 |24-7 | 42-4 | 3-4
: 8 30] Shade| 20-1 !19.4 | —0.7 | 3.3 28 12| Shade | 24-4 | 23-3 | —1-1
Mareh 114 23" 31m, Clear near the sun; scud to H. 34™ 30s. Scud approaching the sun. 35™ 0s. Scud onsun. 37™. Clouds over
“Psun. 38™. Clouds off the sun. 44™—48m, Clouds on or near the sun.
h 124 0h 43m, No clouds within 30° of the sun. 53™. A very thin haze passing over the sun. 58™. Clouds coming over the sun.
_ March 124 1» 28m, Tioose scud within 4° of the sun, and over the sun for 58. 33™. A small patch of vapour near the sun.
|March 124 2h 4m, A cloud over the sun for 10%. 7™. Thin cloud over the sun. 19™. Thin cirrous cloud coming near the sun, and
lerspreading the whole of the sky, so as to render further observations useless; snow at 24™,
- |Mareh 124 21h 93m, A patch of cirro-stratus 20° to eastward of the sun; no haze visible. Observations made at east end of Observa-
y. 27™, The patch of cirro-stratus has disappeared. 45™. The sky has been very favourable since about 27™.
Fy March 124 22h 9m, Patches of cloud on horizon to south, 25° distant from the sun.
4 March 124 22 15m, he instrument was exposed to the sun a few seconds too long; the observation was taken at the proper time.
_|' 50™, Dry thermometer, 287, wet thermometer, 25°°7.
| MAG. AND MET. ops. 1845, ae
278 ExtTrRA METEOROLOGICAL OBSERVATIONS, 1845.
ACTINOMETER.
kerst : Makerst : |
Meena [In Sun | Observation. | Change| Effect| Mean |Sun’s] ean Tine | In Sun | Observation. | Change| Béfect| Mean |
of or = Ty ls of of | Alti- or in of of |
of
First Reading. | Shade. |Begun.|Bnded.| 60° | Sun. |Group.| tude. | Pirst Reading. | Shade. /Begun.|Ended.| 60°. | Sun. cr
Gly eh Sc. diy.| Sc. diy.} Sc. diy. | Se. div. | Se. div. Z do) eens. Se. div.| Se. div.| Sc. div. | Se. div.| Se. diy. E
Marcu 12, 13. Marcu 13.
12 23 9 17| Sun | 21-4 | 24-1 | 42-7 ee | 12| Sun _ | 20-3 | 22-7 | +2.4
2
10 42) Shade} 23-8 | 22-7 | —1-1 | 3-6 3 42] Shade| 22-5 | 21-7 | —0-8
11 42} Sun | 22-7 | 25-1 | +2-4 |] 3:5 4 42} Sun | 21-7 | 24-1 | +2.4
13 12| Shade| 24-7 | 23-6 | —1-1] 3-5 6 12] Shade} 24-0 | 23-2 | —0-8
14 12} Sun | 23-6 | 26-0 | +2-4 | 3-6 7:12} Sun | 23-2 | 25-7 | +2-5
15 42) Shade} 25.7 | 24-4 | —1-3 | 3-8 |;3-69| 30-5 8 42] Shade} 25-6 | 24-7 | —0-9
16 42] Sun | 24-4 | 27-0 | +2-6 | 3-8 9 42! Sun 24-7 | 27-1 | +2-4
18 12| Shade} 26-8 | 25-7 | —1-1 3-7 11 12} Shade} 26-8 | 25-9 | —0-9
19 12] Sun 25-7 |28-3 | +2-6 | 3-8 12 12} Sun 25-9 |28-3 | +2-4
20 42| Shade] 27-9 | 26-6 | —1-3 | 3-9 13 42| Shade] 28-1 | 27-2 | —0-9
21 42) Sun | 26-6 | 29-2 | +2-6 | 3-9 }\ 14 42) Sun | 27-2 | 29.7 | +2-5
23 12| Shade] 28-9 | 27-6 | —1-3 3-9 16 12) Shade} 29-4 | 28-4 | —1-0
24 12} Sun 27-6 | 30-3 | +2-7 | 4-0 17 12} Sun 28-4 131-0 | +2-6
25 42) Shade} 29-9 | 28-7 | —1-2 | 3-8
26 42| Sun 28-7 | 31-3 | +2-6 3-9 |$4.04] 30-9113 1 30 42] Sun 17:6 | 20-2 | +2-6
28 12| Shade} 30-9 | 29-5 | —1-4 |] 4-0 32 12| Shade] 19-8 |18-7 | —1-1
99 12| Sun | 29.5 | 32-1 |4+2-6] 4-1 33 12}| Sun 18-7 | 21-5 | +2-8
30 42| Shade} 31-6 | 30-0 | —1-6 | 4:3 34 42] Shade} 21-3 | 20-4 | —0-9
31 42) Sun 30-0 | 32:9 | +2-9 | 4-5 35 42) Sun | 20-4 | 23-3 | +2.9
33 12] Shade} 32-3 | 30-8 | —1-5 37 12] Shade} 23-2 | 22.2 | —1-0
38 12| Sun | 22-2 | 25.2 | +3-0
39 42] Shade] 25-0 | 24-2 | —0-8
40 42} Sun | 24-2 | 27-0 | +2-8
42 12} Shade} 26-8 | 26-0 | —0-8
De Rees eee ee 43 12| Sun | 26-0 |29.0 | +3-0
45 42| Shade| 29.6 |21-1|—1-5 | 4-1 })
OMe eee eet te 13 1 50 12| Sun | 19.4 |92.6 | +32
48 12) Shade| 23-3 | 21-9 | -1-4 | 3.9 po ae
49 12| Sun |21.9 |24-3 | +24 | 3.9 a acl Gen or 3, lade ee
50 42| Shade| 23-8 |22.2 | 1-6 | 4-0 22 22 | OU Abe ae eee
54 12| Shade| 24-3 | 23.3 | —1.0
51 42) Sun | 22-2 |24.6 | +24 | 4.0 |/3.96| 31-5 atoll Gin | oa Pane ee
53 12] Shade] 24-0 | 22-3 | —1-7 | 4-1 36/40 | Shade | O62. tans en
54 12| Sun | 22-3 |24.7|+42.4 | 4.0 pride | San (esta toe ee
55 42| Shade| 24.0 | 22-5 | —1-5 | 3.9 sodioll Graal fae. |S ee
56 42| Sun | 22-5 |24.9/+2.4] 3.8 ig 2 Otol Sun lor-ettae. eee
58 12| Shade| 24-3 |22.9 | 1.4 | 3.8 || al
1 42| Shade} 30-2 | 28-9 | —1.3
59) 12) Sangh ze" pears i 24 42) Sun | 28-9 | 32-2 | +3.3
2
4 12| Shade} 17-4 | 16-3 | —1-1
5 12] Sun | 16-3 | 19-8 | +3-5
6 42) Shade} 19-4 | 18-3 | —1-1
13 O 26 12} Sun 9-1 | 11-3 | +2-2 7 42) Sun | 18-3 |21-7 | +3-4
27 42) Shade} 11-1 | 10-0 | —1-1 | 3-3 9 12] Shade} 21-3 | 20-0 | —1-3
28 42| Sun | 10-0 | 12-3 | +2-3 | 3-4 10 12] Sun | 20.0 | 23-4 | +3-4
30 12) Shade} 12-0 | 10-9 | —1-1 | 3-4 |}3-42) 31-4 11 42] Shade} 23-0 | 21-8 | —1-2
31 12} Sun | 10-9 | 13-2 | +2-3 | 3-5 12 42} Sun | 21-8 | 25-0 | +3-2
32 42) Shade| 12-9 | 11-7 | —1-2 | 3-5 14 12] Shade} 24-6 |23-0 | —1-6
33 42| Sun | 11-7 | 14.0 | +2-3 15 12] Sun | 23-0 126.2 | +3-2
March 124 23h 16m, Small patches of cloud coming near the sun. 21™. Patches of very thin cloud coming over the sun occasi0
they seem not to affect the indications of the instrument. 33™. Quite clear since 25™; dry thermometer 29°8 ; wet thermometer 2
March 134 14 2m, Observations made on the south side of the Observatory ; no clouds near the sun. 5™. A patch of cloud about
eastward of the sun. 6™. A patch of cloud passed near the sun; no others passed within 15° of the sun. 18™. Dry thermometer
wet thermometer 27°-7. ; Y
March 134 14 30™, Observations made within the porch of the Observatory.
March 134 2h 4m Qs, The screw of the actinometer withdrawn a little.
March 134 2h 9m, Very thin clouds about 25° to westward of the sun; they seem to disappear when within 20° of him. 15™,
of cloud coming within 10° of the sun.
_
j <
ExtTrRA METEOROLOGICAL OBSERVATIONS, 1845.
279
ACTINOMETER.
i ' Makerst ;
eC In Sun | Observation. Change | Effect | Mean | Sun’s ees In Sun | Observation. Change | Effect | Mean | Sun’s
‘of or in of of Alti- of or a in of of Alti-
Reading Shade. Begun.|Bnded. 605s. Sun. |Group.| tude. | pipst Reading. Shade. Begun.|nded. 60s. Sun. |Group.| tude.
foi s Ss. Sc. div. lsaiaaes Se. div. Se. div. Se. div. ! 4 de hs ae Ss. aS lege dive Se. div. Se. div. Se. ao |
. Marcu 28. APRIL 21, 22.
18 27 30| Sun |17-0 |17-9 | +0-9 21 19 35 30| Sun [31-6 [35-1 | +3-5 | 3-8 [|
29 0| Shade|17-8 | 17-3 | —0-5 | 1-3 37 0| Shade|16-7 | 16-4 | —0-3 | 3-9
} 30 O| Sun /|17-3 |18-1 | +0-8 | 1-3 38 0O| Sun |16-4 | 20-1 | +3-7 | 41
| 31 30| Shade/18-0 | 17-6 | —0-4 | 1-2 39 30) Shade} 20-1 |19-7 | -0-4 | 4.0 ||, oo] o4.5
32 30) Sun /17-6 | 18-4 | 40-8 | 1-2 |+1-24) 6-5 40 30| Sun /19-7 | 23-2 | +3-5 | 3-9
| 34 O| Shade|18-3 | 17-9 | —0-4 | 1-2 42 0] Shade| 23-1 | 22-7 | —0.4 | 3-9
1) 35 0; Sun /17-9 | 18-7 | +0-8 | 1-2 43 0| Sun | 22-7 | 26-2 | +3-5 | 3-9
| 36 30| Shade} 18-5 | 18-0 | —0-5 | 1-3 44 30| Shade| 26-1 | 25-7 | —0-4 | 3-9
| 37 30] Sun /|18-0 | 18-8 | +0-8 | 1-4 45 30| Sun | 25-7 |29-3 | +3-6
| 39 0| Shade|18-7 | 18-0 | —0-7 | 1.7
mee 0) Sue 118-0 | 19-1 | +11 | 1-7 | 1.57] 7.6121 20 23 0| Sun |10-6 140 | +3-4
| 41 30] Shade| 19-0 | 18-4 | —0-6 | 1-7 24 30| Shade| 14-1
ade -1 |} 14-2 | 40-1 | 3-4
1 42 30| Sun | 18-4 | 19-4 1-0) 1-5
25 30| Sun |14-2 |17-8 | +3-6 | 3.5
| 44 0O| Shade] 19-3 | 18-9 | —0-4 | 1-4 27 0| Shade|18.0 | 18-1 ailuleais
1 45 0| Sm |18-9 |19-9 | +1.0 ge) Bee ainsi dl Gl © etl see
. ; 28 0O| Sun |18-1 | 22-0 | +3-9 | 3.8
BI9 54 30| Sun | 17-9 | 20-4 | +2-5 29 30] Shade | 22-4 | 22-5 | +0-1 | 3-9 |!3.84] 30-9
| 56 0| Shade] 20-5 [20-5] 0-0 | 2-5 30 30| Sun | 22-5 |26-7 | +4-2 | 4.1
| 57 0O| Sun / 20-5 | 23-1 | +2-6 | 2.7 32 0| Shade| 26-5 | 26-7 | +0-2 | 4.0
| 58 30] Shade | 23-2 | 23-1 | —0-1 | 2-7 33 0| Sun | 26-7 |30-9 | +4-2 | 41
iso 30| Sun | 23-1 | 25-8 | +2-7 | 2-8 34 30] Shade |31-1 | 31-1 0-0 | 4.2
20 1 6| Shade | 26-0 | 25-9 | —0-1 | 2-8 |+2-79| 18-5 35 30| Sun | 31-1 [35-4 | +4-3 | 4.3
) 2 O| Sun -| 25-9 | 28-5 | +2-6 | 2-7 37 0| Shade|35-7 |35-7 | 0-0 | 4.3
3 30| Shade | 28-6 | 28-4 | —0-2 | 2-9 38 0O| Sun /|35-7 |40-1 | +4-4 | 4-4
_ 430] Sun | 28-4 | 31-2 | +2-8 | 3-0 39 30| Shade | 40-2 /40-1 | —0-1 | 46 ||, gel oo.o
© 6 0| Shade| 31-2 | 31-0 | —0-2 | 3-0 40 30] Sun |40-1 |44-7 | 44.6 | 4.7 :
7 «6(0}-Sun | 31-0 | 33-8 | +2-8 42 0| Shade| 44-9 | 44-8 | —0-1 | 4-8
1% 43 0] Sun |44-8 | 49-5 | 44-7 | 5.0
19 Aprit 21, 22. 44 30| Shade|49-7 | 49-2 | —0-5 | 5-1 |
18 23 0| Sun | 20-6 | 22.7 | +2-1 45 30| Sun |49-2 |53-8 | +4-6
_ 24 30} Shade | 22-5 | 22-0 | —0-5 | 2-6 |}
7... "i < EB is
eee 220 241 eal) 26 21 21 23-uollcan titel i t5-89) 4407
| 27 0) Shade] 24-0 | 23-4 | —0-6 | 2.8 24 301 Sh
q ade|15-6 | 14-8 | —0-8 | 5.3
/28 0O| Sun | 23-4 | 25-7 | +2.3 | 2-9
25 30] Sun | 14-8 |19-1 | +4-3 | 5.3
29 30| Shade| 25-5 | 24-9 | —0-6 | 2-8 |$2-78| 14-5
27 O| Shade|18-8 117-6 | —1-2 | 5-5
30 30] Sun | 24-9 | 27-0 | +2-1 | 2-7
i 28 0] Sun |17-6 /21-9 | +4-3 | 5-5
} 32 0| Shade| 26-9 | 26-3 | —0-6 | 2.8 ;
Nf 29 30] Shade| 21-5 | 20-2 | —1-3 | 5-5 |'5-53| 38-0
33 0O| Sun | 26-3 | 28-6 | +2-3 | 2-9
30 30] Sun | 20-2 | 24-3 | +4-1 | 5-5
| 34 30] Shade | 28-4 | 27-8 | —0-6 | 2.9
Wes 30| sun | 27.8 |301 | 42.3 32 0| Shade | 23-9 | 22-4 | —1-5 | 5-7
it 33 0O| Sun | 22-4 | 26.6 | +4-2 | 5-7
2119 23 0| Sun | 16-4 | 19-7 | +3-3 34 30| Shade | 26-0 | 24-4 | —1-6 | 5.8
} 24 30] Shade | 20-3 | 20-1 | —0-2 | 3-4 35 30| Sun | 24-4 | 28-6 | +4.2°| 5-8 f
| 25 30) Sun / 20-1 | 23-2 | +3-1 | 3-3 37 0| Shade] 28-0 | 26-5 | —1-5 | 5-7
27 «0| Shade | 23-3 | 23-0 | —0-3 | 3-5 38 0O| Sun | 26-5 |30-7 | +4.2 | 5-7
28 0| Sun | 23-0 | 26.2 | +3-2 | 3-5 39 30| Shade | 30-2 | 28-7 | —1-5 | 5.6 eA alg
29 30] Shade | 26-2 | 25-9 | —0-3 | 3-4 |'3-52| 22.9 40 30] Sun | 28-7 | 32-8 | +4-1 | 5.8 ;
)} 30 30| Sun | 25-9 | 29.0 | +3-1 | 3-4 42 0| Shade | 32-2 | 30-4 | —1-8 | 5-9
32 0} Shade} 29-0 | 28-7 | —0-3 | 3-6 43 0| Sun |30-4 |34-5 | +4-1 | 5.8
|} 33 0| Sun / 28-7 |32-1 | +3-4 | 3-7 44 30| Shade | 33-8 | 32-1 | —1-7 | 5.9
34 30! Shade! 32-0 |31-6 | —0-4 | 3-9 || 45 30| Sun [32-1 |36-3 | +4.-2
March 284 1gh 30m,
- |April 212 1g 25m,
| April 214 19 23m,
{April 214 21 93m,
A few thin sheets of cirrus to east, about 10° above the sun.
A slight haze to Hast, like the remains of a fog
Thin haze round the horizon.
ading was taken at the proper time.
} April 214 20h 3gm_4gm,
36™ 40s,
A slight breeze.
Actinometer removed to west end of Observatory: puffs of wind.
; a very slight fog in the valleys.
194 24m, The instrument was exposed to the sun’s rays a few seconds too long
The screw withdrawn.
; the
280
Makerstoun
Mean Time | Im Sun
or
of
First Reading. | Shade. |Begun.|Ended.| 60°.
dy Hyyimoy hss
Observation.
Change | Effect | Mean
in
APRIL 21, 22.
21-9
20-9
26-7
25-8
31-6
30-7
36-5
36-3
21 22 21 O} 16-3
11-9
10-3
15-9
14-1
19-7
17-8
23-2
21-2
26-7
24-4
29-8
27-3
32-7
21 23
21 23
22 0
April 214 22 21™,
has been corrected proportionally.
April 214 235 26™.
April 224 2h 16™ 46s.
+5-6
—0-8
+5:8
—0-7
+5-8
—0-6
+5:8
— 0-8
+5-7
—1-3
—2-8
+5-4
Observations made in front of the Observatory. 29™ 305.
Observations made at west end of Observatory. j
2» 30™, There has been a slight condensation of vapour inside the plate-glass covet
38™ 15s. The screw withdrawn. :
The screw withdrawn.
some time, probably caused by the currents of air sweeping over the instrument.
Extra METEOROLOGICAL OBSERVATIONS, 1845.
ACTINOMETER.
Sun’s oe In Sun
of of | Alti- of or
Sun. |Group. Shade
Sun
6:5 Shade
6-5 Sun
6-5 Shade
6-5 6-49 Sun
6-4 Shade
6-5 Sun
Shade
Sun
6-9
6-9 Sun
6-9 Shade
6-9 Sun
6-8 |}6:96 | 46-4 Shade
6-9 Sun
7-0 Shade
7-2 Sun
7-1 Shade
7-2 Sun
7-2 Shade
7:3 Sun
7:2 41 30] Shade
7-1 pate os 43 O| Sun
7-1 44 30] Shade
7-1 46 0O| Sun
7-1
22 155) 70) (Sun:
Al 56 30] Shade
7.9 58 0] Sun
a 222 1 a os
un
7:3 |'7-20| 46-7 2 30! Shade
7-1
7] 4 0} Sun
7.9 5 30]! Shade
7 O|} Sun
8 30! Shade
10 O} Sun
7:7 11 30] Shade
7-6 13 O} Sun
7:7 14 30] Shade
8-1 16 O} Sun
8:0 |+7-86 | 45-7 17 30} Shade
7-9 19 O} Sun
7:8 20 30)| Shade
7-8 22 O} Sun
8-1 23 30] Shade
25 O| Sun
47™ 1658,
: |Begun.|Ended.
The screw withdrawn.
Observation. Change | Effect | Mean |
| | eal ne in of of
et
Sc. div.] Se. div.| Sc. div. | Se. div.| Se. divs] _
APRIL 22.
+5-5
—2.4
+5-4
—2-8
+5-5
—2-6
+5-7
—2-8
+5-5
+58
—2-1
+6-1
— 2-0
+ 6-2
—2-0
+6-5
—1-8
+ 6-4
—2-1
+5-8
—2-7
+55
—2-6
+59
+5:3
— 2-9
+45:3
— 2-8
+5-4
— 3-2
+5-1
—3-2
+5:6
0.7
+5-7
~2.9
+5-6
—3-2
+5-5
—3-2
+5-3
—3-3
+5:8
—3-0
+5-7
The instrument was exposed 5§ too long; the eading
i) or
Reading. | Shade. |Begun.|Ended.
. m.
2 26
28
29
31
32
34
35
37
| 38
| 40
| 41
43
} 44
| 46
47
1 49
50
‘
kerstoun
an Time
30
0
30
0
30
pril 224 3h 35m,
pril 224 5b 36m,
Se. div. | Se. div.
APRIL 22.
36:3
Extra METEOROLOGICAL OBSERVATIONS, 1845.
33-0
40:8
36-4
44-0
38-8
46-1
40-9
28-0
23-4
30-4
25-7
32.9
27-7
34.3
27-8
33-9
27-7
33-9
27-4
33-6
27-9
34-3
28.4
34.8
in
So. div.
—3:3
+5:5
— 3-3
+5:2
—3-7
+5-2
— 3-6
+5:2
—3-4
+4:8
—3-4
+5-1
—3-7
+4-6
—4:5
44-2
—4:3
+45
—4:5
+ 4-4
—4.0
4+4:5
—4-2
+4-6
—3-9
+4-5
—4.4
+43
—4.2
+4-7
—4.3
+4:5
— 4-2
+47
—3-9
+4-6
—4-2
+47
—3-7
+4:-5
—3-9
+4-4
—4-1
+42
—4-1
+44
In Sun | Observation. Change | Effect
of
Sc. diy.
ACTINOMETER.
Mean | Sun’s
of | Alti-
. |Group.| tude.
Sc. div. g
8-80 | 37-6
8-58 | 36-8
8-62 | 36-0
35-1
SS SS es ee)
34-2
33-3
32-4
aS
31-5
30-6
Makerstoun
Mean Time
of
First Reading.
Gee Deen (Sa
281
Effect | Mean | Sun’s |
Observation. Change
aa ea cect of of | Alti- |
- |Begun.|/Ended. 60s. | Sun. Group. tude.
Se. div.| Sc. diy.| Sc. div. |Sc.div.|Se.div. °
APRIL 22
21-3 | 24-7 | +3.4
23-3 | 19-9 | —3-4 | 6-7
21-3 | 24-6 | +3-3 | 6-8
23-1 | 19-6 | —3-5 | 6-7 t
20-8 | 24-0 | +3-2 | 6-7 |+6-66 | 22-9 |
22-7 | 19-3 | —3-4 | 6-6
20-6 | 23-8 | +3-2 | 6-6
22-4 |19-0 | —3-4 | 6-5
20-0 | 23-1 | +3-1
22.4 | 25.3 | +2.9
25:0 | 23-7 | —1-3 | 3-9 |
24-7 | 27-0 | +2-3 | 3-7
26:4 | 24.9 | —1-5 | 3-8
25-8 | 28-2 | +2.4 | 4.1 i
27-6 | 25-8 | —1-8 | 4-1 |:3-93 | 12-6 }
26:8 | 29-0 | +2-2 | 3.9
28-3 | 26-6 | —1-7 | 4.0
27:4 | 29-7 | +2-3 | 4-0
28-8 | 27-0 | —1-8 | 3-9
27-6 | 29-5 | +1-9
19-6 | 21-1 | +1-5
20-2 | 18-1 | —2-1 | 3-5
18-6 | 19-9 | +1.3 | 3-4
19-0 | 16-9 | —2-1 | 3-5
17-3 | 18-9 | +1-6 | 3-8
18-2 | 16-0 | —2-2 | 4-1 |+3-48] 9-0 }
16-6 | 18-8 | +2.2 | 4.0
18-4 | 17-0 | —1-4 | 3.2
17-8 | 19-3 | +1-5 | 2-9
19-1 | 17-7 | —1.-4 | 2-9
18-4 | 20-0 | +1-6 | 3-0 |}
19-4 | 18-0 | —1-4 | 3-0
19-0 | 20-6 | +1-6 | 3-3
20-1 | 18-2 | —1-9 | 3.3 f
18-6 | 19-8 | +1-2 | 2-9 |}3-10| 7-2 }
19-3 |17-7 | —1-6 | 3-0 }
17-9 | 19-4 | +1-5 | 3-2
19-0 | 17-1 | —1-9 | 3-2
17-3 | 18-3 | +1-0 | 3-0
17-4 | 15-2) | = 9.9) | ore
15-1 | 15-3 | +0-2 | 2-5
14-3 | 11-9 | —2.4 | 2.5
11-9 | 11-9 0-0 | 1-7 ;
22-7 | 21-7 | —1-0 | 0-5 |$1-77| 5-4 |
21-4 | 20-4 | —1-0 | 0-6
19-5 | 17-3 | —2:9' | 1.7
17-0 | 16-9 | —0-1 | 1-9
15-9 | 14-0 | —1-9 | 1-7
13-8 | 13-5 | —0.3
MAG, AND MET, oss. 1846.
pril 224 34 20m. The spot of moisture, which has been inside the plate-glass cover since about the commencement of this series (15 55™),
jp the middle of the plate of glass, oval shaped, about 1} inch long and # inch broad.
At the end of this series of observations it was found that there was a small globule of air in the bulb of the actino-
Wer about one-tenth of an inch in diameter.
A slight milkiness in the sky to westward ; the sun tolerably favourable.
hpril 224 5 59m, The observations after this time were made on the roof of the Observatory, the actinometer being put into the shade
Diowering it below the parapet wall.
| pril 224 6 33m 15s, The screw turned in a little. Trees intervened after 64 42™, preventing further observations.
282
1845.
ds) be ome
Jan. 19 19 19.
Jan. 19 22 10.
derns PAO) tab ilo).
Jan. 20 18 10.
darn, PO) ileh 5y
Feb. 5 17 40.
Feb. 5 20 5B.
ebay gone
Keb: 14537
Feb. 21 12 0.
Feb: 2% 3
Hebe 28riil
Mar. 10 7
Mar. 14 8 58
Mar. 20 11 3
ExtTrA METEOROLOGICAL OBSERVATIONS, JANUARY 19—Marcu 20, 1845.
ADDITIONAL METEOROLOGICAL NOTES.
A meteor considerably brighter than Venus burst at azimuth, N. 38° W., altitude 10° ; its cour
was towards SW., being inclined to the horizon at an angle of about ‘45°: only a few degre
of its course were seen.
Cirri rising in tufts from NNW. and radiating from that point, with the curls of the tufts, «
all sides, turned towards the magnetic meridian ; very dense on the horizen, like a mass
auroral light, and in single tufts higher.
Large corona when the moon is covered by thin, watery cloud, and small bluish corona on #]
apparently pure sky. Auroral light to N.?
When the watery cirro-cumulo-stratus is over the moon it produces a beautiful corona of a ve
fine light-green colour.
Faint lunar corona. The sky seems very clear around the moon, yet the very faint light-gre
can be detected to a radius of about 4°; inner circle of brownish light, about 10’ bro:
145 10™, The cirro-cumulo-stratus exhibited the phenomenon previously described (see volun
for 1844, p. 324, Sept. 264.) It moves rapidly, and seems always about to leave the mot
but does ‘Bat; in fact, the cloud seems to grow at the prime vertical ; all to the north of it
sky, and all to the ain is cloud. 152 5m, Faint corona as before. Cirro-cumulo-s
now on the east and west horizon.
Shooting-star to WNW., altitude 40°, moving very rapidly towards NNW.
Sky coloured on S. to E. horizon. A beam of reddish light 4° or 5° broad, extends from ES
to an altitude of about 45°, inclined to E. horizon at an angle of nearly 75°: another, b
narrower beam, having the same origin, is inclined 20° to the E. horizon. 20° 12™, A bright
beam, about the same dimensions as the first noted above, in fact like its opposite extremil
springs from about NW by W.; also a lower band, which forms the greater part of an ar
its apex having an altitude of 15° above the NNE.; all the bands are rather rose-colom
20" 15™—20™, There are now six bands springing from about NW. (or NW by W. 2) poi
of horizon, like broad streamers, with equal or rather less spaces of sky between: all th
bands are rose-coloured, and rise from about 4° above horizon; sky dark blue. The ban
nearest the vertical (inclined about 75° to the horizon) rise perhaps 20°; the lowest band
extend like arches. 20" 30™, The whole now form a band of rosy light on N. horizon
brightest about NW. (2), like an auroral bank. The sun rose shortly after this about ES
Sky rather milky ; milky aurora? The new moon is shining; some of the milky spots are1
doubtedly cirri, lighted by the moon. The cirro-cumuli now radiate from W.
Beautifully-coloured lunar corona, nearly 8° diameter. The colours are very deep and distin
much more so than usual. The cloud in which the corona occurs, the watery cirro-cumul
grows about the zenith; at 111 a very faint small corona, although the sky seems perfectly
clear.
The dry and wet bulb thermometers shewed the same temperature (28°-0) ; at 12" 40™ the we
bulb read 31°:0 when the dry bulb thermometer read 27°-0; at 0™ the water in the
was not frozen ; at 40™ it was beginning to freeze; the increase of temperature was th
probably due to the emission of latent heat during freezing (this has been frequently obse
Cirri lying NW and SE. The cirro-stratous scud and scud reaches from Cheviot to NW
unbroken mass, with sky on each side; Cheviot covered with snow. The upper ¢
cirrus appears to move rather quicker than the cirro-stratous scud.
Sky milky (see Notes to Extra Magnetical Observations, p. 122). 17™—25™, Three met
seen, one moving nearly past zenith, the others moving NE. and NW., respectively,
about 60° altitude. 40™,. Another meteor from 50° altitude above N., moving N by E
Very wild-like black masses of scud with a light homogeneous background, perhaps scud
in showers : the wind commenced suddenly at 74 10™ blowing 2°5 Ib. ; at 20™, rain?.
wind veered from NW by N. to N by E. at 7" 10™, .
A fine meteor brighter than Venus to NNE., moving downward very slowly towards NN
through about 30°, no sparks.
Cirri radiating in belts from N. to S.; hazy near horizon ; indistinct lunar corona.
cumuli growing in a few minutes ; none seen at 10" 58™.
ExtTRA METEOROLOGICAL OBSERVATIONS, Marcu 20—Aprit 14, 1845, 283
ADDITIONAL METEOROLOGICAL NOTES.
°°.
yr. 20 16 Ph, Milky-like cirri radiating from N.; if cirri, they are of the very thinnest kind, the sky only
appearing milky here and there. 17 4m, Cirri radiating from N by W.; sky milky. 17520,
t Altitude of crepuscular arch 30°; reddish vapours to EH. 18". Sky pinkish to ESE., blood-
red to E., deep purple to ENE; “cirri radiating from NNW. 195. Cirri radiating ai before.
_ 20" 30m, Parhelia seen. The western parhelion very bright.
ir. 26 10—11". Several flashes of lightning seen ; wind blowing strongly at 128 10™; at 12" 15™, wind blow-
1 ing 6:0 Ibs. ; heavy rain. 14%. Sky milky; the moon projects the shadow of the clouds in
the air; eeen of aurora, 17h 4m, Crepuscular arch about 8° altitude. 175 45™, Begin-
ning to colour on the E. horizon. 18" 20™. « Lyre seen quite distinctly with the naked eye.
. 28 12 25. A shooting-star to WNW., altitude about 45°, moving from S. to N.
17 7. Crepuscular arch about 10° altitude. 35™. Sky colouring to E.
329 0 The sky seems very milky near the sun ; this has generally been observed when the difference of
the dry and wet bulb thermometers was considerable, as to-day ; the mixture of vapour with
the air rendering it more transparent. At 11%. Sky milky and hazy-like near horizon ; faint
aurora.
r. 830 17 10. Crepuscular arch, 9° altitude.
pol 63 Patches of cumulo-stratus to N. ; woolly and mottled cirri from W by N.; linear and curled cirri
from W. ; cirri radiating from NW by W.; portion of a halo. 45. Fine mottled, linear, and
cymoid cirri; cirro-strati radiating from NW by N. and SW by S8.; halo brighter than before.
55. A long string of scud, loose cumuli, and cumulo-strati extends from Cheviot to N.,
moving from SSW. ; masses of cirro-strati; mottled and woolly cirri and cirrous haze. The
cirro-strati are in rounded cake-like pieces one above another; sky altogether stormy-like.
\ 55 20m, The cirro-strati to E. have regular serrated ridges. 6". Patches of a halo. 7.
Clouds pinkish or slightly claret-coloured to W.
ir. 81 18 50—19 15. Parheliaseen; they were at no time very bright ; the distance of each from the sun, from
several measurements, was 223°; they were sometimes elongated horizontally, and sometimes
vertically. The parhelia were coloured red on the side nearest the sun, and greenish-yellow
on the opposite side ; the clouds in which they were produced were dense cirro-strati and cir-
rous haze. In the zenith woolly cirri, having a slightly cirro-cumulous disposition. 21" 15™.
Top of a halo seen. 225, The cirro-stratus is composed of various kinds of cirri ; patches of
loose cumuli or cirro-stratous scud to N.
1 17 10. Bright crepuscular arch, altitude 11°; an arch of reddish vapour 5° altitude. 18" 5™, w Lyre
1 seen through cirri with the naked eye. Sky nearly covered with cirri, radiating from ESE.
. and WNW., coloured orange, red, and yellow ; deep-red vapours to E.
ar. 2 6 Cirri dispersed irregularly over the sky, radiating to some extent from WNW. ; hazy on horizon.
| 7", Flame-like cirri; atmosphere very hazy to E.; Cheviot invisible. 138° 5™, Shooting-
: star to E., altitude 30°, moving slowly towards E by S., magnitude 1 to 2.
i 5 7 Finely-mottled cirri to W., altitude 20°, which shew colours exactly like diffraction spectra from
ie irregularly-striated bodies ; deep purple vapours to W.; thick to K.; Cheviot invisible.
Passing showers ; clouds falling in cirrous curtains as if bent by the wind ; there must be snow in
the upper strata, as the rainbow is seen at the extremities only, and the sun is shining on the
whole. 84. Sky of aslate-blue to EK. 105 15™. Sky very clear ; stars of the third magnitude
seen within a degree of the horizon; a dark speck of cloud appears about 15° above NW., it
rapidly increases, is very thin at first, gradually becomes denser, extending itself ; in 5™ it
covers two-tenths of the sky, extending from NW. to SE. ; throughout it has been surrounded
by sky ; im about 10™ it becomes much thinner ; stars of the second magnitude being visible
through it in many places, and is again rapidly disappearing but without any motion. Streaks
of cirro-strati to NNW., quite stationary. Zodiacal light very distinct.
Wr. 13 16 25. Sky overcast with a thick hazy-like cloud; rain commenced. 18? 5™—15™. A long strip of
light to E by N. vertically above the sun, like the sun reflected from rippled water ; the strip
is slightly broken, like a series of not very regular repetitions of the sun’s image ; the cirri in
4 which these images are formed radiate from NNW.
ar. 14 7 Cirri radiating from NNW. and SSE., but moving from N.; ill-defined portion of a solar halo.
ik 8", Cirro-strati blood-red from NW by W. to W., seen in fiery patches through the gray scud ;
sky yellowish to N. 9, Clouds now radiating from N by E.
_
284 Extra METEOROLOGICAL OBSERVATIONS, APRIL 16—JuLy 31, 1845.
ADDITIONAL METEOROLOGICAL NOTES.
1845.
d. h. m. |
Apr. 16 11 Cirri radiating from about NE by E., but they are formed of bars lying NW by N. and SE by
there is a circle of light round the moon of the usual dimensions of the halo, but the inte
of the circle is as luminous as the circumference ; the corona is not well coloured.
Apr. 21 16 10. Crepuscular arch, 7° altitude ; sun’s upper limb visible at 17% 20™.
Apr. 22 16 7%. Crepuscular arch; reddish vapour, 8° altitude ; bright yellow, 6° altitude ; white, 9° altitud
17 27. a Lyre watched till now, when 1 of the sun’s diameter is visible above fs horizon ; had
eye been a little better cared for at first, I have no doubt but it might have been seen
the sun was completely above the horizon ; the eye was kept upon the star by placing t
eye, the star, and a corner of the Observatory in the same vertical.
Apr. 25 11 Light on horizon to S. $ W., like from a fire. 134 58™. Very bright to N by E., altitude I
as if the moon were shining through the clouds. 14° 6™. Bright-red glare, covering a ¢
cular space of 10°; the reflection (?) is only from the upper clouds (cirro-strati 2) and the
is a black patch in the midst of the glare: this is perhaps the reflection of a fire as it 0
in exactly the opposite point of the horizon from the light seen at 11".
May 1 5. Beautiful and vivid double rainbow, the extremities within 150 yards of the observer ; fou
currences of the red could be observed in the supplementary bows, but the red or reddish col
only could be detected, forming narrow bows within the primary ; the secondary bow
distinct.
May 1 11. Strong twilight (?) to NNW. 11" 6™. Meteor to E., altitude 45°, moving towards §
Thunder-storms to-day 13 miles off to SSW.
May 4 12 59. A meteor moved wp from about 45° above SE., to 65° above E. Crepuscular light through
the night.
May 15 19. Many ae one of cirro-strati, chiefly in woolly sheets ; a few sheets of mottled cirro-strati, lim
of cirro-strati lymg N. and §., like lines of very small cumulo-strati; zigzag lines to N
cumulo-strati to NW.; loose cumuli on Cheviot.
July 31 1 50. Clouds moving up from S. and SE., very thick and black, the clouds have a variety of motions
inter se. 28 0™, Thunder to SE. 2™. Rain®. 4™, Another peal to SE. Very little rair
after 20™.
2 15—20. Occasional peals from SE.
22. A flash of lightning, thunder in 75.
25. A fine streak to E., altitude 45°; thunder in 635.
26. A fine streak to E., from altitude 20° to horizon, having the appearance of waves in a rope
shaken.
27. <A double flash to E., forming an arch from E by S. to E by N., altitude 15°.
29. A very complex flash to E., altitude 6°, interval 12s.
30. Streak to E., altitude 6°. j
35. A large streak went parallel to the horizon to NE., and then bisected itself at right angles, stre
ing over about 30° of horizon, interval 125., altitude 10°.
38. A streak about 10° long inclined to the horizon at 80° to NE., interval 8°, like an illumin
serpentine copper wire.
40. About 20 flashes have been seen since 20™, the rolls have been almost uninterrupted.
40. Flash to NNE., interval 105. | Ly
41. Flash to NNE., interval 8s—105, a7
43. Two flashes, one to NE by E., and the other to N., interval 225. fo |
44, Flash to NNE., interval 135, altitude 5°. 1.
45. Three streaks pependicular to the horizon to N by E., interval 30s. j
Flash to N by E., interval 335, ca
One to NE., altitude 15°, and another to N., interval 11s from NE.; the thunder continue od
at intervals to NE. and N. ;
3.10. A flash to NE by N., altitude 10°, interval 145 ; this is the only flash seen since 24 45™, although
the lightning was looked for, All the flashes or streaks had the same character, viz.,
the undulations of a slack rope. The thunder like the sound of a cart’s wheels moving ae
very irregular pavement, with many variations of intensity. Thunder heard last about 3" 35m
1845.
jeb. 22.
ExtTrRA OBSERVATIONS, 1845.
DATES OF FLOWERING AND LEAFING OF PLANTS, &c.
Primula acaulis in flower. Crows coming
to their nests.
larch 21—23. Ranunculus Ficaria, in flower.
23.
23.
23.
31.
mo 686i,
Corylus Avellana, with catkins 2 inches
long fully open, probably open a week
or more ago.
A bat seen.
Ribes Grossularia, leaves open.
Humble bees, tortoise-shell butterfly and
toads seen.
Fragaria vesca in flower.
12 Viola canina in flower.
2.
. Petasites vulgaris in flower.
. Zsculus Hippocastanum in leaf.
d.
‘Feb. 13
ODAAAIAAMN ww
Tussilago Farfara in flower.
Ulmus montana in leaf.
. Alnus glutinosa in flower some days.
Larix Europea in leaf.
. Corylus Avellana in leaf.
- Mercurialis perennis in flower.
. Pulmonaria officinalis in flower.
. Erodium cicutarium in flower ; must have
flowered by the 12th.
. Cerasus Padus in leaf.
. Lamium album in flower.
. Prunus spinosa in flower.
1845.
April 27
7
27.
27.
27.
27.
27.
27.
29.
30.
May 3.
20
Nov. 8
h.
1. p.m. (Mak. M. T.).
. Fagus sylvatica in leaf for 3 days ?
Agraphis nutans in flower.
Pyrus aucuparia in leaf about 7 days.
Glechoma hederacea in flower about 3 days.
Myosotis (arvensis ?) in flower about 2 days.
Tilia Europea in leaf.
Erysimum Alliaria in flower.
Caltha palustris in flower.
The cuckoo heard for the first time.
Fraxinus excelsior (young tree) in leaf
about 3 days.
. Pyrus Malus, in flower about 2 days.
. Asculus Hippocastanum in flower.
. Quercus Robur in leaf.
. Swallows seen at Kelso.
nearly finished.
. Three swallows seen (Hirundo rustica).
. Swifts seen (Cypselus apus).
. Young Redbreasts seen.
54, Swallows seen in considerable numbers
for the last time this year.
. Fraxinus excelsior, leaves off one tree.
. Fraxinus excelsior, Fagus sylvatica, and
Platanus occidentalis, have lost the greater
part of their leaves.
74, Two bats seen,
Thrush nest
Temperature of the interior of a large ash-tree, 31°8 ; the temperature of
the air in the shade being 44°-0. At 4" the temperature of the ash-tree was 31°-9 ; when
the temperature of the air was 45°-0. The bulb of the thermometer was inserted about
5 inches into the tree, and the aperture closed, leaving the stem of the thermometer outside
the tree.
ee
Feb. 14 4. p.m. (Mak. M.T.) Temperature of the ash-tree, 32%7, of the air, 36°7.
Seger et nc catorrenc cates ese atin BOCA, ain eon. dtt 40°-6.
17 43. S42: 6 aseaneee 41°°4
19 4. 38a. lam anemaseasss 366
22 4. B50, -cincan obs 35°-0
Mar, 20 3. BOP Oa ieaentease 37°-2
May 16 3. BHO. y edema na 64°83
|MAG. AND MET. ops. 1845.
i
285
286 ExTRA OBSERVATIONS, 1845.
MAKERSTOUN MEAN TIME OF THE COMMENCEMENT OF THE MORNING SONG
OF BIRDS.
1845. 1845.
d. bh m. dé em. .
Feb. 14 7 aM. Thrush. April 30 3 5 a.m. Larks (probably sooner). 3°10
14 5 pM. Blackbird. Thrush.
15 6 a.m. Blackbird or Thrush. May 4 2 42 Lark. 58™, Thrush. Land-
17 6 50 ... Thrush. 7" 10™a,.m. Pigeon. rails heard.
17 .. Thrush and Linnet throughout the 6 250 ... Larks. 3" 0™. Thrush.
19 6 25 ... Blackbird, &c. [day. 7 250... Larks. 35 9m, Thrush.
90 510. Thrush, &c. 9 2 40 Larks. 25 50™. Thrush.
22 6 20 Thrush. 12 218 Larks. 2% 35m, Thrush,
24 6 5 Pigeon. 65 10™ a.m. Thrush. eee Lark.
6" 40™ a.m. Blackbird, &. 14 610 ... Cuckoo.
256 Gt LOwte. nw Birds: te 216 Lark, 2 28m, Thrush.
Mar. 4eobieB5uc ctodthonash. ee: OE Lark, 2 25m, Thrush.
17. 5 80 ... Thrush and Linnet. 17 125 ... Landrail. 2h 15™. Lark.
19. -BrL5 enie Birds: 19 2 0... Lark. 2" 24m, Thrush:
20 5 15 Birds, the Redbreast first. 21 2 28 ... Thrush.
23 4 40 Blackbird, Thrush? Partridge. 22 225 .. Lark. 243m, Thrush.
25 4 40 ... Blackbird, Thrush? Partridge. 26 2 0... Lark. 2 25, Thrush,
26 4 35 Blackbird, Thrush? Partridge. 27 2 5 ... Lark, 2" 22", Thrush.
27 4 5D Blackbird, &c. 28 214 ... Lark. 2h 22m, Thrush,
29 4 27 Lark. 30™, Thrush. 30 1 40 Lark. 25 0”, Theos
31 4 25 Thrush. June 4 2 5 ... Thrush.
April 1 4 27 ... Thrush. 5 2 5 .. Thrush.
2 420 Thrush, 6 1 36 Lark. 25 0m, Thrush.
3 4 22 Thrush. 7 122 ... Lark. 2° 5”, Thruste
5 415 Pigeon. 25™, Thrush. 9 1 33 Lark.
eA TF Lark and Thrush. 10 1 10 Lark. 1° 43m, Thrush.
8 414 Larks. 25™, Thrush. 1a) 1, 14 Lark. 1" 43m, Thrush.
9 3 68 ... Lark. Cuckoo.
At 445. Birds 13 120 Lark. 12 45™, Thrush.
12 4 0 Lark and Thrush. 14 1 25 Lark. jh 42™, Thrush.
14 4 10 ... Lark and Thrush. 17 138 ... Lark, 2° 0. Thrush.
GSD Ps Lark and Thrush. 21 1 42 : Lark. gn 14m, Thrush.
1% aiSu)5Oinde ta Leriaaca crete 26 1 40 Lark, 2" 1, Thrush.
18 8 45 Lark and Thrush. oil Lark, 2» 15m. Thrush. .
19,3 32 .. luck, So™, Uheaee: aly we Ser 0 Lark not heard early in the morn-
21 3 30 Gare ing after this date.
93 3 14 ‘ Mhreratens gba Taek Swile57 Swallow. 2 30™, Thrush.
25 8: 86° 1h, Dhrudieagl Mie 10 1.40 .... Swallow. ¢ 28 a
26 3 oy ... Birds singing. Y 3 a Pe
28) “312 . Thrush. d
29 3 45 Lark (may have been earlier).
Sandpiper throughout the night.
32 10™. Thrush.
It has generally been doubtful whether the Thrush or Blackbird was heard at first, owing to the distance of the birds from the oboe
but it is believed that the Thrush is generally before the Blackbird.
DAILY OBSERVATIONS
OF
MAGNETOMETERS.
MAKERSTOUN OBSERVATORY,
1846.
BALANCE,
Cor- |Thermo-
rected. | meter,
288 DAILY OBSERVATIONS OF MAGNETOMETERS, J ANUARY 0—6, 1846.
Gottingen Birizar. || BALANCE. " | Gottingen BIFILAR.
Mean Time || Deciina- = o Mean Time || DECLINA-
of Declina- TION. Cor- |Thermo-| Cor- |Thermo-|| 3°s | of Declina- TION. Cor- |Thermo-
tion Obs. rected. | meter. / rected. | meter. 5 “1 tion Obs. rected. | meter.
d. h, m. ° ae Se. Div. 2 Mic. Div. io) d. h, m. 2 ‘ Se. Diy. 2) Mie. Div.
013 O || 25 08-21 || 542-5] 41-6 | 409-5| 42.3 || W 222 O || 25 08-25) 545-4) 36-9 || 413-2
14 0 09-27 || 543-9| 41-6 || 407-5} 42.3 || W 23 0 09-39 || 543-7 | 37-0 || 411-9
15) 09-56 || 544-1] 41-6 | 407-3) 42-2 || W 2 0) 0 10-50 | 542-1 | 37-1 || 412-6
16 0 09-32|| 545:5| 41-5 || 406-7} 42-1 ‘W 1) 10-97 || 543-4 | 37-4 || 412-9
Lie 11-14 || 544-6] 41-4 | 405-1} 41-9 || W 2 0 11-10}| 544-3 | 37-7 || 411-8
18 0 08-85 || 548-2] 41-4 | 404-4] 41-8 || W ay 10) 11-14 || 543-5} 38-0 | 414-6
19 0 08-59 || 547-8) 41-3. | 406-4} 41-8 B 4 0 11-14 || 545-9} 38.5 || 417-5
20 0 08-72 || 547-8| 41-2 | 404-9] 41.7 B 5 0 09-39 || 547-1 | 39-0 || 420-5
PAL 0) 08-65 || 548-1} 41-1 404:8| 41-7 | H 6 0 09-13 || 550-5 | 39-4 || 421-7
22 0 08-26 || 542-3} 41-0 | 404-5} 41-5 || H 7 AG) 08-68 || 551-1} 39-7 || 419-1
23 0 08-38 || 544-1| 40-9 || 400-8] 41-2 | H 8 0 08-45 || 550-5 | 40-0 | 417-5
I 0) a0) 10-18 || 543-1) 40-8 || 402-4) 41.3 H 9 0 06-77 || 545-4| 40-3 || 420-8
0 11-88 | 540-9} 40-8 || 407-3) 41-5 13) 10 0 07-67 || 545-8 | 40-7 || 422-7
2 0 12-01 || 546-3} 40-8 || 407-6) 41-5 H hike 08-05 || 547-8 | 40-9 || 415-0
370 11-55 || 550-1) 40-9 || 408-8} 41-5 H 1250 03-23 || 541-4| 41-3 | 412-5
, : : 410- é
4 0 10-09 || 548-9| 41-0 10:0} 41-5 || W 413 0 || 25 07-78|| 545-7| 40-0 | 406-2
5 0 09-10 || 547-7) 41-1 410-0} 41-5 iI 8
é 14 0 07:37 || 543-0| 39-7 || 404-8
6 0 08-86 || 546-1} 40-9 || 410-0) 41-3 | W
~ 15; -0 08-12|| 540-7 | 39.4 || 405-8
7 0 09-08 || 544-5| 40-7 || 409-6| 41-1 2]
16 0 08-48 || 543-6 | 39-1 || 403-2
8 0 08-41 || 544-6} 40-5 407-5 | 40-7 H :
2 170 08-39 || 544-4] 39-0 405-6
9 0 05-38 || 542-9] 40-2 || 407-9} 40.3 H z
: ; LS 50 07-79 || 546-3) 38-8 || 405-9
10 O 03-06 || 543-5| 39-9 || 408-9! 40.0 || W
19 O 08-38 || 546-7) 38-6 || 405-5
Ti 0 07-60 || 543-2] 39-7 || 403-7| 39.7 | H
12 0 08-52 || 543-5| 39-3 || 401-7) 39.2 | H 20 0 08-11] 546-9) 38-3 | 4045
21 0 08-08 | 545-1 | 38-0 406-9
13. 0 || 25 08-95 || 543-9] 39-0 || 403-2) 38.8 H 22 9 07-55 || 544-2] 37-8 || 405-9
14 0 08-95 || 544-1} 38-7 || 403-9] 38-5 H 23 «0 09-62 || 542-0} 37-6 || 402-6
5) 0) 09-53 || 545-6 | 38-3 405-4| 38-2 H 5 0-0 11-44 || 544-0} 37-4 400-9
16) 0 10-85 || 545-0| 38-0 404-6 | 37-7 H 10 11-77 || 544-3 | 37-4 404-3
Wri aD) 08-32 || 547-4| 37-7 || 406-6) 37.5 H 2 0 12-04 || 547-6| 37-5 || 407-0
18 0O 08-55 || 548-2| 37-3 408-4| 37-2 | H 3) 11-51 || 548-4| 37-7 || 409-7
19 O 08-82 || 547-0| 37:0 || 410-6) 36-8 || W 4 0 10-60 || 547-7) 38-2 || 411-2
20 O 08-56 || 547-3| 36-7 || 411-2| 36-6 || W 5 0 09-86 || 550-1} 38-6 || 411-0
21 O 08-52 || 546-0] 36-4 || 412-9] 36.2 B 6 0 09-53 || 550-7 | 38-9 || 410-5
2250 08-34 || 545-3] 36-1 410-6| 35.9 || W ef (0) 09-02); 550-9} 39-0 |} 409-4
23 0 08-95 || 543-8] 35-8 || 408-7) 35.7 || W 8 0 08-99 | 550-8} 38-9 || 408-6
20,0 09-69 || 545-0} 35-6 || 408-6} 35-7 || W 9 0 08-70 || 550-3 | 38-9 || 409.4
it 09-76 || 543-3| 35-6 || 412-5) 35.8 B 10 0O 06-44 |) 541-1| 38-9 || 416.6
20) 11-10]| 543-2} 35-7 || 415-5| 36.2 || W I Tieeo 01-54 || 540-6] 38-9 || 426-5
3 0 10-16 || 547-9| 36-0 || 418-0| 36-7 | W 123.0 05-76 || 545-5 | 38-9 | 420-0
4 0 09-35 || 549-6| 36-6 422-0| 37.2 Ww 13 0 || 25 05-77|| 541-8| 38-9 417-7
5 O 08-79 || 549-5) 36-9 || 420-6) 37.5 || W
14 0 11-75 || 540-9} 38-9 || 405-3
6 0 08-08 || 550-4] 37-2 || 420-4) 37.7 || H
& 15,50 04-73 || 543-7) 38-9 || 397-3
7 ~#O 08-41 || 549-9} 37-3 || 418-8} 37.8 H :
S rs 16 0 06-86 || 545-8 | 38-9 || 404-5
8 0 08-55 || 548-6} 37-4 || 417-9] 37.8 H
Ne 0) 08-48 || 548-2] 39-0 || 404-8
9 0 08-18 || 545-6 | 37-3 417-6| 37.7 H
Ute} (0) 08-28 || 552-0) 39-1 | 403-1
10 O 08-01 || 546-2| 37-2 || 419-2} 37.6 H
ae : 19 0 08-36 || 951-7| 39-2 || 403-9
al (a) 07-60 || 541-9| 37-1 416-6 | 37-5 B 551-2 06-3
i250 08-16 || 545-8| 37-0 || 412-4] 37.4 | B at 07-64 | 2002) 30-6) ee
| 21 0 08-41 || 551-3 | 39-8 || 403-5
13. 0 |) 25 08-39 || 543-3| 36-9 411-5| 37.3, B 92 O 07-94 || 548-5 | 40-0 399-2
14 0 08-11 |) 542-9} 36-9 || 410-6] 37.2 B 23 0 09-12|| 542-4| 40-4 || 400-5
15 0 09-00 || 543-7} 36-8 || 411-0) 37-2 B 6" 0770 10-77 || 945-1 | 40-7 || 403-4
16 0 08-12 || 546-4} 36-7 || 404-9} 37.2 B 1520 11-57 || 543-1) 41-1 || 407-5
17 O 08-52|| 546-3} 36-7 || 409-7) 37.2 B Zin 11-84 || 545-6} 41.3 || 407-2
18 0 08-41 || 548-2} 36-7 || 413-0) 37-2 | B 3D) 12-58 || 549-4} 41-7 || 405-8
19 O 08-52 || 549-0| 36-7 || 413-3) 37.2 | Hf 4 0 12-42 || 548-7 | 42-0 || 409-7
20 O 08-85 || 548-6] 36-7 || 414-7 | 37-3 H 5 11-14 ]| 545-8} 42-5 || 413-3
21 0 08-59 546-8! 36-8 || 414-5! 37-4 || W 6 0 10-07 || 553-2! 42-9 || 407-2
DECLINATION. Magnet untouched, Jan. 01—Feb. 154.
BirILaAR. Observed 2™ after the Declination, s=0-000135.
Jan. 14 34h,
See Introduction, p. Xxxii.
BALANCE.
Observed 3™ after the Declination, =0-000010. |
37-5 |
37-6 |
37-7 |
38-2 |
38-5 |
38-7 |
39-1 |
39-7
40-2 |
40-5 |
40-8
41-1
41-5 |
41-7 |
42-0
The arms of the bifilar torsion circle were turned through 455: the observations from Jan. 04 13» till Jan. 1¢ 3?
been made comparable with those after the latter date ; and the observations in 1845 and 1846 have the same zero, though not the
scale unit.
Observer’s
Sssctidtisttsts presses sr rrr sssaes Seo DU W ERR ro ooS |
DAILY OBSERVATIONS OF MAGNETOMETERS, JANUARY 6—12, 1846.
BIFILAR. BALANCE. * | Gottingen | BIFILAR. BALANCE.
DECLINA- >| Mean Time || Decuina-
TION. Cor- |Thermo-|| Cor- |Thermo-]| $°3 | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
rected. | meter. || rected. | meter. || S'~ | tion Obs. rected. | meter. |} rected. | meter.
=| og “$e. Div. ° Mic.Div.| ° Gli Tye Tene} Oven Se. Diy. ° Mic.Diy.| °
0 | 25 09-00|| 553-3) 43-3 |} 403-2] 44-7 || B 8 15 0 || 25 08-77 || 546-4) 48-5 || 373-7] 48-9
0 08-32|| 552-2} 43-7 || 401-4} 45-0 || B 16 0 08-52 || 546-3} 48-4 || 373-9] 48-8
0 07-74 || 551-5] 44-1 || 400-3) 45-4 || B 17 0 08-21 || 547-6| 48-3 || 371-2| 48-5
0 07-57 || 549-5 | 44-5 || 398-5] 45-7 || B 18 0 08-05 || 546-5] 48-1 || 370-0| 48.3
mM” 60 07-35 || 549-3} 44-8 || 396-0} 45-9 | W 19 0 08-66 || 548-9| 47-9 || 370-6! 48.2
12 0 09-59 || 548-6} 45.0 || 392-7} 46-0 || W 200 08-79 || 548-8) 47-8 || 371-7] 48-1 |
Bg 2505-49) 550-9| 45.2 || a85-4| 46.2 | w] 22 0 | O8ta) ote) Are | 3730| 47-9 |
22 0 07-76 || 545-1] 47-6 || 374-8) 47-7 |
14 0 07-04 || 539-2| 45-3 || 382.9} 46-3 | W
2377 0 08-72 || 540-4| 47-4 || 373-3] 47-5
15 0 08-61 || 547-1| 45-4 |} 384-3] 46-4 | W :
2 OO 10-43 |) 539-8 | 47-3 375-5 | 47-5
16 0 07-96 || 544-5) 45-6 || 388-7) 46-5 || W rs |
1 0 11-46 || 540-2} 47-2 || 377-2] 47.5
En, 0 07-51 || 547-6| 45-6 || 387.2) 46-5 | W
| 2°70 13-05 | 544-8| 47-2 || 392-9] 47.5
18 0 06-09 || 547-4| 45-7 || 386-0| 46-6 | W
: 3 0 11-24] 543-7] 47-2 || 396-6] 47-5
19 0 08-93 || 540-2) 45-8 || 387-6] 46-7 | B
| | 4 0 10-36 || 548-9| 47-2 |) 399-3] 47-5
20 O 07-40 || 548-1} 45-9 387-6 | 46-8 B
: 2 0 09-69 || 547-9| 47-2 || 397-9] 47-5
21 0 07-18] 550-3} 45-9 || 388.7) 46-8 || H ;
6 15 09-33 || 548-0| 47-2 || 395.2} 47.5
22 0 10-56 || 550-6] 46-0 || 386-9; 46-9 || H
Thane) 08-23 || 548-4| 47-1 || 394-3] 47.4
23 0 10-33 || 541-8} 46-0 || 386-9} 46-9 | H
8 0 07-44 || 546-7| 47-0 || 396.2| 47-2
0 0 11-12]] 539-0] 46-2 || 384.5] 47-0 B :
9 0 08-05 || 549-6| 46-9 || 396-3] 47-1
car 0 12-62|| 547-1] 46-4 || 383-0} 47-2 || H
10 O 07-47 || 546-8} 46-8 || 399-5] 47-0
| a 12-36 || 549-6| 46-5 || 383-0| 47-3 | H
. 11 0 08-79 || 544-6} 46-6 || 397-1] 46.7
Bee) 1222) 849-2) 467 | 884-2) 279 | BT 2 0] 08-95] 547-3] 46-5: | 396-2] 46.6
4 0 11-88) 547-4] 46-8 || 389.9] 47-6 B
jo 0 07-98 || 552-3] 46-9 || 389-6| 47-7 || H 13 0 || 25 08.48 |) 546-5) 46-4 || 396-9) 46-5
16 Ot 00-28 || 532-4] 47-0 || 405-4} 47-8 || W 14 0 08-97 || 545-5} 46:3 || 396-9] 46.3
iy OT 01-18 || 539-5] 47-2 || 416-9| 48-0 | W 15 0 08-80 || 545-6} 46-1 || 397-0] 46-2
8 0 07-64 || 551-5] 47-4 || 398-8] 48-3 | W 16 0 08-46 || 546-7| 46-0 || 396-5! 46.2
9 0 04-96 || 544-5| 47-5 || 403-5] 48-3 | W 17 O 08-34 || 547-5| 45-9 || 395.2! 46-1
10 0 06-93 || 549-5| 47-5 || 395-1] 48-2 | W 18 0 08-61 || 549-1| 45:9 || 392-6! 46-0
im. O 08-12|| 546-1] 47-4 || 390-0] 48.2 | H 19 0 08-41 || 549-3} 45-8 | 392-4] 46-0
12 0 07-71 || 543-6| 47-4 || 386-4| 48-1 | H 20 0 07-72 || 540-4| 45-7 || 392-1} 46-0
Pill (0) 07-67 || 549-8 | 45-7 || 393-8] 46-0
13 0 || 25 09-67 |] 541-4) 47-3 || 370-9| 48-0 | H 22 0 07-20 | 547-9| 45-7 || 395-2] 46.0
jl4 0 03-65 || 545-2| 47-3 || 361-3) 48-0 | H 23 0 07-27 || 546-7| 45-7 || 393-8] 46.0
‘15 (0 04-81 || 536-6] 47-3 | 365-2} 48-0 | H | 10 0 O 09-15 || 547-5} 45-7 || 392-8} 46-1
(16 0 10-67 || 541-3] 47-3 || 365-1| 48-0 || H 1 0 10-38 || 547-2) 45-8 || 394.2) 46.2
17 «OO 10-23 || 543-0] 47-3 || 369-8) 48-0 || H 20 11-00 | 549-8| 46-0 | 396-3} 46-5
118 0 07-07 || 551-5) 47-3 || 371-2] 48-0 || H 3 0 11-41 || 551-5| 46-2 || 398-6] 46.9
19 0 08-18 || 548-9] 47.4 || 374-3] 48-0 | W 4 0 11-05 || 548-1) 46-4 || 403-6] 47-2
20 0 09-39 || 543-6} 47-4 || 379.3} 48-0 | W 5 0 09-56 || 545-6] 46-7 || 404-1] 47.3
21 0 12-75 || 539-8] 47-4 || 380-2] 48-0 | B 6 0 09-24 || 553-1| 46-8 | 399-8} 47.4
(22 0 12-96 || 540-6] 47-4 || 381-5] 48:0 | W 7 0 09-62 || 552-7| 46-9 || 396-2] 47.5
/23 0 11-98) 536-1] 47-5 || 387-3] 48-0 | W 8 0 09-46 || 550-8| 47-0 || 396-1] 47-6
£0 0 14-38 || 539-0| 47-6 || 385.4| 48-1 | W 9 0 08-52 || 547-9| 47-1 || 398-0| 47-7
b.0 11-51] 530-7) 47-6 || 393.3] 48-3 || W 10 0 07-29 || 549-0] 47-1 || 398-3] 47.7
2 0 13-41 || 539-9) 47-7 || 390-9| 48-4 | W 11 0 06-16 ]| 551-1} 47-1 |) 396-4] 47-7
3 0 15-20 || 542-6} 47-9 || 390-6| 48-5 | W 14 (0) 05:72 || 548-6| 47-1 || 394-6] 47.7
| 4 0 14-60 |) 547-4) 48-0 || 395-7| 48-8 | W 1119 0 | 25 11-48| 556-6] 43-3. || 387-1 | 43-7
5 0 06-77 || 551-1} 48-2 || 397-7) 49:0 | W
. | 20 0 07-04 || 555-1| 43-3 || 385-8} 43-7
6 0 09-30 || 549-7| 48-4 || 387-7) 49-2 || H
22 0 10-33 || 547-1] 43-2 386-4] 43-4
a. 0 09-49 || 549-0} 48-5 || 383-8] 49-2 | H
23 0 12-25 || 546-0] 43-1 || 387-6! 43.3
jaa, 0 08-09 | 546-0) 48-7 || 385-0] 49-4 || H Q
12 0 O 13-69 || 541-4} 43-0 399-7 | 43-3
2» 0 04-41 | 547-9| 48-7 || 385.6} 49-5 | H :
7; 1 0 15-74 || 535-9) 43-0 || 403-2! 43-3
10 0 06-59 || 543-0] 48-7 || 384.4] 49-3 }| H U
2 0 17-94 | 549-0} 43-0 || 433-7] 43.4
aj 11.0 07-51 || 546-4) 48-7 || 382-9) 49-3 | W
12 0| 08.34| 546-8] 48.7 | 382.1| 49.3 | D PE eM aTIREe ete ee ice”
bow 6 0 10-14 || 546-5} 43-0 || 416-9} 43.4
13 0 || 25 07-08 |) 546-1] 48-7 || 380-1| 49-2 | D 8 0 07-17 || 538-3} 42-7 || 418-7) 42.7
5| 14,0 07-92 || 543-9} 48-6 || 376-4| 49-1 | D 10 0 04-841) 543-8| 42-1 1 412.21 41.8
DECLINATION. Magnet untouched, Jan. 04—Feb. 154.
|BIFIZAR. Observed 2™ after the Declination, k—=0:000135. BALANCE. Observed 3™ after the Declination, s=0:000010.
} Extra Observations made.
“MAG. AND MET. ops, 1846, 4D
bo
ies)
Ne)
Initial.
DAILY OBSERVATIONS OF MAGNETOMETERS, JANUARY 12—22, 1846.
mond aadenghigesee sadddgugmsem addghichessmm ¢4dgmunemene
Initial.
A
2
>
‘5
o
mn
Q
jo)
290
Gottingen BIFILAR. BALANCE.
Mean Time |} DECLINA-
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter.
ds ah.) ons: ) U Se. Div. bs Mie. Div. p:
12 18 0O || 25 09-05 || 545-7) 39-3 411-0} 38-8
20 O 08-41 || 545-5 | 38-8 411-9} 38-4
22 O 07-71 || 543-0} 38-3 413-8| 37-9
23 0 09-12 ]| 542-1) 38-1 418-2) 37-7
13 0 0 09-59 || 539-7 | 37-9 424-5| 37-5
1 O 10-23 || 539-9| 37-7 424-8| 37-5
2 0 12-38 || 542-3} 37-6 418-7} 37-5
4 0 11-07 || 545-1] 37-4 413-3) 37-5
6 0 08-90 || 549-3} 37:5 413-6| 37-7
¢ © 09-69 || 547-8 | 37-5 413-2] 37-8
8 0 09-71 || 547-6| 37-6 412-5} 37-9
10 O 04-95 || 542-9 | 37-6 418-1) 38-0
18 0 || 25 15-71 ]) 546-1] 37-9 358-6 | 38-7
20 O 07-76 || 555-0| 37-9 386-8 | 38-5
22) 0 08-34 || 542-9| 37-9 392-2) 38-3
23 +O 10-61 || 542-0] 37-9 395-8] 38-3
14 0 0 12-90 || 532-2] 37-8 405.4| 38-4
em) 11-17 || 534-2} 38-0 416-4| 38-7
240 12-31 || 544-5] 38-3 416-6| 39-1
4 0 10-00 || 548-2| 39-0 425-4| 40-0
6 0 09-20 || 545-8 | 39-4 419-2) 40-4
7 O 06-93 || 545-6 | 39-7 416-4} 40-7
8 0 04-21 || 541-0] 39-9 420-9| 40-9
10 0O 04-66 || 544-4] 40-2 380-9} 41-1
18 0O |} 25 09-73 || 550-2} 40-8 394.3 | 41-7
200 09-42 || 548-5] 40-8 393-6] 41-7
22". 0 13:37 || 545-9] 40-9 392-7| 41-6
23 O 12-18 || 547-3 | 40-9 395-7| 41-6
15 0 0 11-30 || 547-8] 40-9 396-0] 41-5
1 "0 09-42 || 544-9) 41-0 396-6| 41-7
2 0 12-65 || 545-6] 41-1 403-2] 42-0
4 0 09-69 || 548-5] 41-6 407-9| 42-6
6 0 09-30 || 551-6} 42-2 401-1 | 43-2
Tie) 09-05 || 550-5 | 42-4 399-6] 43-4
8 0 08-61 || 548-3] 42-5 400-3] 43-5
10 0O 08-38 || 549-6 | 42-4 395-8| 43-1
18 0 || 25 08-05 || 546-6} 40-7 392-2| 40-7
20 O 09-12 || 547-0} 40-1 392-2} 40-1
PPX oll) 08-95 || 548-3 | 39-7 394-0| 39-5
23 0 09-82 || 547-8 | 39-4 392-5| 39-3
16 0 0 12-53 || 545-0] 39-2 397-3 | 39-0
1 13-86 || 551-8] 39-1 397-2) 39-0
20 14-68 || 552-3] 39-0 399-9| 39-0
4 0 09-79 || 547-8} 39-0 407-7 | 39-0
6 0 09-13 || 550-4] 38-8 405-6| 39-0
7 O 09-93 || 549-4] 38-7 404-3 | 39-0
8 0 08-18 || 549-1} 38-7 403-1} 38-9
10 O 05-99 || 541-0} 38-5 405-5| 38-6
18 0O || 25 10-70]|| 555-8] 37-3 394-7 | 37-7
20 O 14-94 || 540-3} 37-0 | 381-4] 37-3
22 0 10-92 || 541-8} 37-0 387.2| 37-2
23 4.0 11-30 || 540-8) 37-0 396-9| 37-2
lar 10-0 13-14 || 543-5] 37-0 406-0 | 37-5
1 0 12-18 || 545-0! 37-1 406-1! 37-7
DECLINATION.
BIFILAR. Observed 2™ after the Declination, k=0:000135.
Gottingen
Mean Time || DEcLINA-
of Declina- TION.
tion Obs.
ae |i ane ie ie
li ©2% Ob 1) 2a ah2-26
4 0) 25, L-19
6 0O |] 25 12.92
7 O |] 24 55-65
8 O || 25 03-82
10 O || 24 59-06
18 18 0 25 06-16
20 O 09-29
22 0 12-15
2372 14-03
19 0 O 13-16
i beabt 12-58
2" 0 11-17
4 0 09-15
60 10-43
(i: 06-09
8 0 09-86
10 O 09-00
18 0 25 07-98
20 O 07-79
po 09-29
23 0 10-20
20. 50" 0 10-70
1” oO 11-74
et) 10-87
4 0 09-02
6 0 09-02
vee) 08-88
8 0 08-46
10 0O 08-16
18 0 || 25 07-24
20 O 11-27
22" 0 09-69
23. 4 11-00
21 0 0 11-52
1 0 11-91
2 0 13-19
4 0 10-94
67 0 09-84
7 10 08-82
8s 0 09-29
10 O 08-97
18 0 || 25 06-93
20 0 07-40
22 0 09.29
23 0 10-43
22 0 O 12-13
TO 10-00
Pe wil 13-59
4°0 10-23
nO) 09-32
) 08-92
Se .0 09-19
LOW 0 08-41
Magnet untouched, Jan. 04—Feb. 154.
Observed 3™ after the Declination, =0:000010.
BALANCE.
BIFILAR.
Cor- |Thermo-|| Cor- |Thermo- g
rected. | meter.
Se. Div. e
550-7 | 37-4
538-9 | 38-0
547-2 | 38-7
545-8 | 39-1
542-3 | 39-3
544-8 | 39-9
557°3
546-1
543-7
544-2
543-3
549-3
549-9
548-2
547-0
538-6
548-5
547-7
549-3
547:-4
545-0
541-2
043-4
544-2
547-1
546-6
548-6
048-5
550-2
548-3
547-5
541-6
548-0
546-0
544-3
547-4
551-9
551-2
549-9
551-1
501-4
558-5
549-4
548-2
544-1
541-2
539-8
542-0
546-9
049-5
550-2
592-6
552-4
553-6
BALANCE.
rected.
Mic. Div.
410-7
427-9
428-8
442-6
433-2
| 424-4
398-9
397-7
400-3
401-0
405-3
405-3
409-5
408-9
410-7
416-3
412-5
407-7
398-1
397-1
396-6
398-7
396-8
394-0
392-5
393-7
398-6
397-8
395-7
397:8
390-5
390-1
390-0
390-3
392°5
394-3
393-5
399-7
400-3
402-8
399-7
399-5.
393-6
393-2
398-4
400-3
401-0
399-4
397-3
399-0
394.8
| 393-6
| 395-6
| 392-0
meter.
38-2
38-8
39-7
40-1
40-4
40-8
40-6
40-4
40-2
40-2
40-4
40-6
40-7
41-0
41-4
41:5
41-7
42.0
43-2
43-4
43-6
43-7
43-8
43-9
43-9
44-0
44-0
44-0
._-
DaILy OBSERVATIONS OF MAGNETOMETERS, J ANUARY 22—FEBRUARY 2, 1846. 291
BIFILAR. BALANCE. % | Gottingen BIFILAR. BALANCE. th Re
Drorns--|—<——_ |, or lls | (Mean Time || Decuina= |\—_.____ || 0 | os
TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°¢] of Declina- TION. Cor- |Thermo-|} Cor- /Thermo-|| 2°¢
rected. | meter. || rected. | meter. 5 | tion Obs. rected. | meter. || rected. | meter. |S '~
m. ° - Se. Div. ° Mice. Div. . da, jh.) “mn, 3 ? Se. Div. . Mic. Div. fe
0 || 25 07-64 |} 549-8} 43-5 384-1} 43-9 H |} 28 2 O/} 25 15-17]| 537-4] 45-5 379-4| 45-8 WwW
0 07-40 || 547-1) 43-0 386-4) 43-2 H 4 0 13-17 || 542-3) 46-2 412-2) 46-6 H
0 08-06 || 543-9| 42-6 388-2 | 42.7 W 6 0 10-28 || 549-5) 46-5 397-1] 46-9 WwW
0 09-39 || 541-5] 42-4 || 388-6) 42.4 H 7 09-29 || 549-1] 46-6 390-5| 46-9 || W
0 10-03 || 539-5] 42-3 390-6 | 42-5 W YI 8 0 08-73 || 549-0} 46-4 383-1 | 46-7 WwW
0 11-05 || 542-4] 42.3 389-4 | 42-7 H 10 O 07-29 || 547-9| 46-2 376-1] 46-3 W
0 11-44 || 546-6) 42-5 391-7) 43-2 WwW
0 09-64 || 547-2] 43-2 395-7 | 44-2 H 18 0 || 25 02-40 || 546-7) 45-0 333-3 | 45-3 H
0 09-08 || 552-5] 43-7 390-4| 44-5 W 20 O 07-40 || 543-3) 44-9 368-5 | 45-2 H
0 08-61 |} 553-1] 44-0 389-9 | 44-7 W 22 0 06-97 || 538-6] 44-9 376-9| 45-1 W
0 08-38 || 553-7 | 44-0 389-0 | 44-8 W 2B) (0 09-29 || 536-5 | 44-8 376-7 | 45-2 H
0 06-84 || 559-1] 44-2 385-1 | 44-9 Wi29 0 0 11-19 || 539-7 | 44-9 373-0] 45-3 WwW
1° 0 11-62 || 542-9} 45-0 371-5} 45-5 H
0 | 25 08-11 ]) 553-2} 43-5 374-0} 44-0 H 2 0 12-43 || 549-4} 45-2 372-5 | 45-7 iE
ot 26-37 || 559-1} 43-2 333-0| 43-7 H 4 0 10-77 || 551-7} 45-6 383-5 | 46-2 H
0 19-86 || 537-9} 43-1 332-7 | 43:5 WwW 6 0 10-28 || 550-2) 45-9 381-9| 46-5 W
0 13-99 || 538-2] 43-1 338-0] 43-3 H we {Y 10-20 || 551-2| 46-0 380-:0| 46-6 || W
0 12-38 || 536-0} 42-9 365-8} 43-3 W 8 0 09-62 || 555-5 | 46-1 377-8 | 46-7 W
0 11-84 || 534-2} 42-8 377-6 | 43-3 H 10 O 08:32 || 554-5) 46-1 375:0| 46-5 W
0 13-93 || 538-6 | 42-9 384-5 | 43-5 W
0 13-12 || 538-6| 43-7 400-2} 44-6 H 18 0O | 25 08-41 || 553-8] 45-7 367-9| 46-0 H
0 | 25 09-08 || 548-2] 44-6 400-6 | 45-2 W 20 +O 08-28 || 546-4] 45-6 372-3] 45-8 H
It 24 49-54 || 512-8) 44-7 400-0] 45-3 ‘W 2270 08-29 || 543-1] 45-4 372-8| 45-6 W
0 | 24 53-15 || 559-9] 44-7 403-4| 45-3 W 93 +O 10-20 || 543-7] 45-3 371-9] 45-5 H
0 | 25 02-12]! 533-7| 44-7 390-7 | 45-2 Wi30 0 O 10-92} 548-1] 45-3 373-6] 45-5 WwW
1 O 10-85} 542-6} 45-28! 374-1] 45-5 H
0 || 25 08-41]! 547-9) 47-0 372-2) 47-4 H 2520 11-51 |} 547-3] 45-3 377-7| 45-9 WwW
0 07-65 || 545-4] 46-9 374-1} 47-4 H 4 0 09-96 || 550-4] 45-8 385-7| 46-5 H
0 08-52 || 543-2} 47-0 376-2| 47-3 WwW 6) 10-27 || 554-6| 46-4 385-0| 47-0 W
0 10-00 || 542-3] 47-0 376-2 | 47-4 H 70 09-74 || 548-8| 46-6 385-9| 47-2 W
0 11-99 || 540-8) 47-1 382-2| 47-7 W 8 0 | 25 08-88 || 548-0| 46-7 386-5 | 47-3 WwW
0 12-85 || 540-1] 47-3 383-2| 48-0 H 10 0O | 24 58-05 |) 546-6} 46-9 385-1] 47-4 WwW
0 12-43 || 542-1) 47-6 385-2| 48-3 W
0 09:86 || 546-2| 48-2 381-0] 49-0 H 18 0 || 25 05-06 || 549-7| 46-7 367-3 | 47-0 H
0 08-92 || 547-7] 48-6 || 374-0] 49-3 || W 20 0 08-88 || 553-3| 46-8 || 366-7] 47-3 || H
0 08-72 || 547-7| 48-7 371-6| 49-3 W pipe (0) 09-33 || 543-2) 47-0 371-4] 47-5 WwW
0 08-41 || 547-3] 48-6 || 370-0} 49-1 || W 23 0 10-43 || 539-0] 47-2 || 375-9] 47-7 || H
0 08-21 || 547-0] 48-5 371-0} 48-9 Wi/31 0 0 11-08 | 538-3] 47-4 375-9 | 47-8 Ww
! er 11-77 | 541-2) 47-5 377-1} 48-0 H
0 || 25 08-18 || 548-5] 47-5 || 366-2) 47-6 || H 2 0 11-27|| 545-1] 47-7 || 379-1] 48.3 | W
0 07-37 || 546-3 | 47-3 366-8] 47-3 H 4 0 08-86 |} 547-9| 48-1 382-3| 48-7 H
i 0 08-19 || 541-0} 47-1 370-5 | 47-2 ‘W 6 0 08:85 || 545-4] 48-5 385-2| 49-2 WwW
0 09-69 || 538-7| 47-1 |) 371-0] 47-2 | H “0 09-29 || 548-7| 48-6 || 379-5| 49-3 || W
0 10-83 || 540-2] 47-0 370-6} 47-2 W 8 0 08-63 || 548-1] 48-7 378-4 | 49-4 WwW
0 12-11 | 543-0] 47-1 || 369-9] 47-5 || H 10 O 07-78 || 548-6| 48-9 || 374-6] 49-5 || W
0 14-17 || 547-9| 47-4 370-0 | 47-9 WwW
0 11-68 || 545-6] 47-8 375-3] 48-5 H 118 0O || 25 11-77) 546-8} 43-1 375-2 | 42-9 H
0 06-64 || 548-2) 48-2 378-3 | 48-7 W 20 O 07-52 || 544-9| 42-7 384-1 | 42-3 H
0 08-21 || 550-5 | 48-2 372-3 | 48-7 ‘W 22 0O 10-65 | 543-0] 42-3 388-2) 41-8 W
0 07-74 || 549-7 | 48-2 370-5 | 48-6 W 23 «(O 12-31 |} 539-0) 42-1 387-9! 41-7 H
0 02-69 || 549-8 | 48-0 371-6| 48-2 W 2 0 0 14-28 || 538-7| 42-0 389-2] 41-9 W
1 On| 14-24 || 542-0) 42-1 395-2] 42-5 H
0 || 25 05-43 || 547-0} 46-3 360-8 | 46-2 H 4 (0) 14-58 || 545-1} 42-4 401-0] 43-1 W
0 05-44 || 546-6| 46-0 364-0} 45-7 H 4 0°] 10-58 | 546-8 | 43-7 414-7} 44.5 H
0 08-85 || 543:5| 45-7 365-3 | 45-5 ‘W 6 0 07-62 || 544-9| 44.4 411-0; 45-1 WwW
0 10-50 || 541-0) 45-6 || 366-2) 45-5 || H 720 06-56) 541-7| 44.6 || 410-8] 45-3 || W
0 13-12 || 545-2) 45.4 367-3 | 45-4 W 8 0 07-81 || 545-6) 44-7 400-1} 45-3 W
0 15-4411 542-71 45-4 375-0! 45-5 H 10 OO! 02-52 || 556-0 44-7 387:5 | 45:3 WwW
DECLINATION. Magnet untouched, Jan. 0¢—Feb. 154.
BIFILAR. Observed 2™ after the Declination, s=0:000135. BALANCE. Observed 3™ after the Declination, s=0°000010.
t+ Extra Observations made.
292 DaAILy OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 2—12, 1846.
Gottingen BIFILAR. BALANCE, ‘ | Gottingen BIFILAR. BALANCE.
Mean Time || Deontna- |[——>— |) |e We | Mean “Sime | Deciaa- | ——— =|}
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| $°Z | of Declina- TION. Cor- |Thermo-|| Cor- |Therme
tion Obs. rected. | meter. || rected. | meter. 5 a: tion Obs. rected. | meter. || reeted. | meter,
ig ese ey 0 Se. Div. @ Mic. Diy. 0 d@: Gh: m:)||cn eZ | Se. Div. ° Mic. Diy. ° gi
18 0 || 25 06-43 |) 549-8} 44-2 || 375-5 | 44-7 H 4 2k 10%) 2aw3-59 | 544-0] 42-7 389-1] 43-6 |}
20 O 08-16 || 549-4} 44-4 || 377-6| 45-0 H 4 0 13-46 || 550-2| 43-4 || 412-9] 44.5 |
22 0 09:76 || 542-1 | 44-6 382-7 | 45-2 W 6230 11-66 || 543-9} 43-8 || 428-5] 44.6 |
py (Y 11-84 ]| 541-9| 44-7 382-1 | 45-3 H ta 0 08-95 |) 543-8| 43-8 || 423-3) 44-6 |
0 O 11-21 || 538-2| 44-9 387-0 | 45-5 W 8 0 08-52 || 547-8| 43-7 || 412-3] 44.4 |
1a (0) 11-86 || 540-0) 45-1 382-4 | 45-8 H 10 0O 08-75 || 548-8| 43-4 || 400-0] 43-8 |
2 0 12-08 || 544-0} 45-4 || 381-7| 46-2 ‘W 1
4 0 08-72 || 540-6| 46-0 || 397-7| 47-0 H 8 18 0O || 25 07-05 | 536-9| 37-1 387-1} 36-6 |
6.10 08-61 || 550-7| 46-4 || 387-9| 47.2 WwW 20 0 09-44 || 547-8 | 36-7 388-6 | 36-4 ||
7 O 08-41 || 551-1] 46-7 387-4 | 47-4 W 22 O 14-84 || 542-8} 36-4 || 397-1| 36-2 ir
8 0 08-59 || 548-4] 46-8 386-7 | 47-5 W 23 OT 08-85 | 556-8] 36-4 || 395-1| 36-2 |
10 0O 08-19 || 547-6| 46-8 384-1 | 47-3 W oS 0ma0 11-22 | 552-0} 36-3 400-4| 36-3 ||
16 09-46 | 547-8| 36-3 | 407-3] 36-5 |]
18 0 || 25 07-74|| 547-2} 44-4 || 378-1] 44.3 H 240 15-62 | 543-0} 36.4 || 414-3| 36-7 |)
20 O 08-41 || 549-1 | 43-7 379-7 | 43-2 H 4 0 11-05 | 540-7] 36-8 || 457-9] 37-2 IF
22 0 10-53 || 551-4} 43-0 395-1] 42.4 W 6 0 09-84 || 548-5] 37-2 || 424.2) 37-7 |
23 0 11-61 || 546-3 | 42-7 390-2 | 42.2 H 720 11-07 | 545-1] 37-2 |) 415-9) 37-6 |
0 0 11-34 || 542-9} 42-5 394-1] 42-2 W 8 0 09-69 | 546-1} 37-2 || 413-1] 37-5
1 go) 12-85 || 542-7 | 42.4 388-8 | 42-4 H 10 0 07-24 || 542-5| 37-0 || 410-6| 37-1
Zia 11-28 || 542-1] 42-5 389-7 | 42-8 W q
4 0 09-15 || 541-0 | 42-9 400-6} 43-5 lal 18 9 || 25 08-18] 540-9| 34-7 || 402-4] 34.4 |
(oy (9) 08-18 || 540-2 | 43-2 394-7 | 43-8 W 20 O 08-14 | 542-4} 34.3 401-0} 33-9 |
“GY 04-22 || 543-3 | 43-3 400-1} 43-8 W 22 0 09-27 | 543-1] 33-8 400-5 | 33-6 ;
SHO 07-99 || 548-6} 43.2 398-8 | 43-7 W 23° 0 09-44 || 544-2] 33.7 385-7 | 33-6 '
10 O 06-86 || 548-9} 43-0 || 390-6] 43-5 Wiio0 0 O 08-11 | 546-1] 33-7 389-0] 34-0 |
e 1 20 10-27 | 546-8] 34.0 || 392-8| 34.6 |
18 0 || 25 08-38]) 550-0] 41-9 382-8 | 42-2 1el 2540) 09-80 || 555-9} 34-4 388-9} 35-2 |
20 O 08-14 || 549-0} 41-7 385-1 | 42-0 H 4 0 10-53 | 545-5] 35.4 395-1] 36:3 i}
22 0 07-84 || 544-7 | 41-5 394-9 | 41-7 ‘W 6 0 03-06 || 543-4] 36-0 || 412-4] 36-7 |
23 0 09-42 || 543-8] 41-5 394-2] 41-7 H 7 0 07-99 || 543-9] 36-0 407-7 | 36-7 |
0 0 10-36 || 541-0} 41-5 396-1} 41-9 W S50 09-22 | 547-5| 36-6 || 398-8} 36-6 |}
1 O 11-22 || 541-9} 41-5 394-2 | 42-2 H 10 0 08-19 || 545-3] 35-9 396-6 | 36-5 |
2 0 11-61 || 541-1} 41-9 394-1] 42-6 ‘W if
4 0 10-30 || 545-9] 42-6 391-1] 43-1 H 18 0O || 25 08-25 || 548-6] 35-5 386-8] 36-0 |
6 0 08-66 || 549-4] 43-0 392-7| 43-8 WwW 20 0 08-80 || 550-1} 35-6 384-1 | 36-1 |
uw 06-63 || 547-4] 43-0 392-0] 43-7 H 22 0 08-88 || 549-7] 35-6 385-0] 36-2 |
8 0 08-45 || 548-2} 43-0 390-7 | 43-5 H 23 0 10-03 || 549-8| 35-9 | 385-3] 36-6
10 O 07-24}} 550-5} 42-7 385-0 | 42-9 Wet iF 20050 10-38 || 545-0] 36-2 389-3 | 37-0 || I
i Lama 10-90 || 549-1] 36-7 390-7 | 37-7 | ]
18 0 || 25 08-14} 548-9} 40-7 386-0 | 40-7 H 2020 11-44 || 546-5 | 37-2 || 389-9} 38-4 | I
20 O 07-98 || 548-4] 40-3 391-4] 40-2 H 4 0 09-82 || 550-2| 38-6 393-3 | 39-9 |
22 0 07-57 || 542-8 | 39-9 399-1] 39-7 WwW 6 0 08-75 || 548-0} 39-5 390-2| 40-7 i H
23 0 08-59 || 538-9] 39-7 398-9 | 39-5 H (eX!) 08-46 || 550-4] 39-8 386-8 | 40-9 | I
0 0 10-68 || 538-8} 39-6 396-4 | 39-6 W ts} (0) 07-18 || 546-5 | 39-8 387-2} 41-0 |
it (9) 12-01 || 540-7] 39-6 || 402-4] 39-8 H 10 0 07-74 || 547-1] 39-9 385-8 | 41-0 |
20:0 12-22|| 543-6] 39-6 || 399-1] 40-1 || W i
4 0 10-03 || 546-7} 40-0 |} 402-1] 40-5 H 18 0 || 25 07-47 || 549-2) 39-5 374-8 | 39-9 }
6 0 07-85 |) 548-8} 40-3 |} 402-9} 40.9 W 20 0 08-46 || 548-4} 39-0 373-0} 39:3 | W
70 08-45 || 549-6] 40-4 || 402-9} 41-3 W 22 0 09-35 || 547-6 | 38-7 || 369-0} 38-7
8 0 08-43 || 550-7} 40-6 || 400-0} 41-5 W 23 0 11-89 || 544-7| 38-6 368-4 | 38-7 |
10 O 08-80 || 550-3 | 41-2 398-3 | 42-2 Wil2 0 0 15-01 || 539-5 | 38-5 369-5 | 38-5 i
1 a) 13-90 | 545-1) 38-7 || 379-2) 39-3 |
18 0O | 25 04-21 || 552-5] 42-6 || 368-9} 43-2 H 2 0 13-79 || 551-0] 39-0 385-9 | 40-2 |
20 O 08-31 || 551-3 | 42-5 368-9 | 43.2 H 4 0 10-43 || 550-0 | 40-7 391-6} 42-2 |)
22 0 10-81 || 542-0] 42-5 380-1 | 43-2 W 6 0 09-32 | 549-3} 42-7 382-8| 44-0 ||
23 «0. 11-44 || 542-8) 42-5 381-2| 43-2 || H fia WV 08-79 || 560-8 | 43-2 377-8 | 44:5
7 OW 11-64 || 545-2} 42-5 383-0] 43-2 | W 3:00) 08-75 || 550-9 | 43-5 | 373-3 | 44-6
1 13 13-52 || 540-9) 42-5 388-8 | 43-5 Jee 10 O 02-59! 555-31 43-8 366-3! 44-7
DECLINATION. Magnet untouched, Jan. 04—Feb. 154, J
4
BIFILAR. Observed 2™ after the Declination, s=0-000185. BALANCE. Observed 3™ after the Declination, s=0:000010. —
4
t+ Extra Observations made.
f Bosgen BIFILAR. BALANCE. aa Gottingen BIFILAR.
Pan Time || Decuina- 2-5] Mean Time || Drecrina-
Declina- TION. Cor. |Thermo-|} Cor- |Thermo-|| 2's | of Declina- TION. Cor- |Thermo-
ion Obs. rected. | meter. || rected. | meter. 5 ‘2 tion Obs. rected. | meter.
m, ou 7 Se. Div. ° Mie. Div. 2 di) A, cms CHAZ Sc. Diy. °
0 || 25 07-32 |) 547-8] 42-0 | 365-9} 42-1 W/]18 2 0] 25 12-82] 541-6) 44-0
0 07-54 || 546-2} 41-4 367-1} 41-1 WwW 4 0] 25 12-48 |) 543-7) 44-8
0 08-31 || 542-5] 40-9 || 371-7] 40-8 || H 6 O | 24 59-64]|| 555-7) 45-7
0 09-53 || 542-2} 40-7 371-2} 40-8 WwW 7 +O || 25 04-51 || 546-6} 45-8
0 11-01 || 544-7 | 40-7 373-1} 41-2 H 8 0 | 25 04-91 | 544-8) 46-0
0 11-25 || 544-5} 40-9 379-7 | 41-7 B 10 O || 24 59-70) 546-5} 46-5
0 10-83 || 546-8} 41-4 380-4| 42-5 H
0 09-26 || 551-1] 43-0 382-0} 44-5 H 18 0 | 25 06-83 || 547-2| 44-8
0 08-14 || 550-2] 44-5 377:4| 45-7 H 20 0 07:18 || 545-0| 44-5
0 09-22 || 552-7|] 44-9 368-8 | 45-7 H 22550 08-05 542-6} 44-3
0 09-06 || 552-7 | 45-0 365-8] 45-7 H 23:5 0 02-84 || 540-9} 44-1
rN) 08-82 || 547-1} 44-8 370-3 | 45-4 ST 19) OPO 10-48 || 540-1| 44-1
1 0 10-94 || 542-4) 44-1
6 || 25 04-71 || 549-7} 42.9 356-6] 43-0 WwW 2 0 10-94 || 544-4) 44-3
0 07-37 || 552-5] 42-6 359-3 | 42-8 W 4 0 08-72 || 548-5| 44-5
0 10-88 || 542-5] 42-3 358-7| 42-6 H 6 0 08-09 |} 550-1} 44-7
0 12-51 || 544-5] 42.3 355-0| 42-6 WwW 7 #0 07-17 || 550-5} 44-7
0 13-79 || 550-7 | 42.3 358-8 | 42-7 H 8 0 08-72 || 551-4} 44-7
0 13-76 || 551-5} 42-4 364-7 | 43-0 H 10 O 07-89 || 551-6} 44-6
0 14:96 || 550-6} 42-6 368-0} 43-4 H
0 12-78 || 572-2] 43-2 370-2} 44-0 ‘WwW 18 0 || 25 06-37 || 548-3} 43-9
0 10-18 || 552-8} 43-7 372-1] 44-5 H 20 O 06-81 || 547-0} 43-7
0 09-39 || 556-0} 43-8 | 368-5/ 44.6 || H 22 0 08-58 || 543-0] 43-4
0 09-05 || 558-9] 44.0 363-1} 44-7 H 23 0 09-56 || 541-3} 43-3
0 07-81 || 550-4] 44-0 373-0| 44-7 H | 20 0 0 10-60 || 543-6} 43-1
1 0 10-83 || 546-5} 43-1
0 || 25 07-47 || 547-7) 44-8 425-9| 45-0 W 2540 10-63 || 550-2} 43-2
0 16-65 || 555-0] 44-7 430-8| 45-0 ‘W 4 0 08-63 || 549-8| 43-4
0 10-74 || 539-8} 44-6 400-3 | 45-0 H 6 0 07-24 || 552-7} 43-6
0 14-50 || 528-5 | 44-7 413-0] 45-2 WwW hoy) 07-78 || 553-6} 43-7
b 0 13-61 || 530-2] 44.8 421-4) 45-5 H 8 0 08-38 || 553-9} 43-7
1 0 11-89 || 532-0] 45-0 420-5 | 45-7 H 10 Ot 00-84 || 552-6} 43-8
m2 0 10-65 || 537-3| 45-5 || 383-3] 46-3 | B
m4 0 08-10 || 559-2} 46-3 382-8 | 47-2 B 18 0O || 25 05-22)! 549-4) 43-9
6 O |] 25 05-55 || 551-2} 47.2 385-7 | 47-5 H 20 O 06-84 || 552-4) 44-1
/ +7 ot 24 49.48 || 533-8) 47-2 382-4} 47-7 H 22510 07-38 || 548-9] 44-4
1 8 0 || 24 53.88 561-0] 47-2 363-8 | 48-0 H 23 O 08-82 || 544-3) 44-9
10 0 || 24 57-62)) 535-0} 47-3 || 354-5| 47-7 | H | 21 0 0 09:76 || 547-3| 45-3
|. 1 0 10-54 || 548-8} 45-8
18 0 || 25 06-97|| 547-0] 45-9 348-8 | 46-0 WwW 2 0 10-53 || 547-8! 46-3
120 0 07-35 || 543-4] 45-6 352-9| 45-6 W 4 0 09-56 || 548-7 | 47-3
| 22 0 09-54 || 543-2] 45.2 355:3 | 45-2 H 6 0 08-39 || 547-5 | 48-1
| 23 0 09-71 || 541-1} 45-1 355-1} 45-3 WwW 7 O 02-35 || 553-0] 48-2
1 70° (0 09-02 || 545-7 | 45-2 357-5 | 45-7 H 8 0 09-02 || 550-8 | 48-3
i » 0 10-54 || 547-7] 45-4 360-3 | 46-2 H 10 0O 05-45 || 550-0| 48-4
| 2 0 09-64 || 545-5 | 45.7 365-4| 46-5 H
| 4 0 10-98 || 554-2 | 46-1 366-5 | 46-8 W {| 22 18 O | 25 05-18]| 551-7} 49-8
6 0 05-79 || 551-5 | 46-3 373-6 | 47-0 H 20 O 05-58 || 551-8} 49-9
p iaty 07-13 || 548-3 | 46-4 || 369-7} 47-0 H 22550 06-90 || 551-6] 50-0
8 0 08-56 || 550-5} 46-4 367-1] 47-0 H 23° 0 07-78 || 548-6| 50-0
10 0 00-44 || 542-9} 46-4 347-8] 46-7 F235 100 08-79 || 547-0| 50-1
L5G 08-68 || 550-6} 50-4
118 O || 25 05-77 || 545-6| 44-8 353-3 | 44-8 WwW Bt) 07-98 || 550-1} 50-6
| 20 0 06-21 || 547-4] 44-4 354-6 | 44-3 W 4 0 08-36 || 549-1] 51-1
22 0 08-34 || 542-7 | 43-9 353-9 | 43-9 H 6 0 08-43 || 549-3) 51-5
|} 23 0 09-71 || 539-6 | 43-8 360-5} 43-9 WwW 7 Xi) 07-94 || 550-6} 51-6
I! 0 0 11-93 || 541-2] 43-8 362-9} 44-0 H 8 0 07-60 || 551-8} 51-6
a) au, 0 11-91 || 544-1! 43-8 365-91 44.3 H 10 0! 07-07 | 552-1/| 51-4
’
DAILY OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 12—23, 1846.
BALANCE.
DECLINATION. Torsion removed, Feb. 154 2334,
|Birinar. Observed 2™ after the Declination, s=0-000135.
| t Extra Observations made.
Feb. 164 0h—2h, Magnet with short scale in the declinometer box.
MAG. AND MET. oBs, 1846.
= 97s W6diSRBe 5S
BALANCE.
| Mic. Div.
Cor- |Thermo-
rected. | meter,
372-7 | 44-7
385-7 | 45-7
389-6 | 46-2
385-6 | 46-5
385-5 | 46-6
355-9 | 46-5
362-2] 45-0
364-0 | 44-7
371-1] 44-4
370-6 | 44-5
370-3 | 44-5
371-8 | 44-7
374-6 | 44.8
377-9 | 45-2
374-7 | 45-3
371-5 | 45-3
369-6 | 45-3
365-1 | 45-1
363-1 | 44-3
362-9 | 44-0
364-5 | 43-6
365-0 | 43-5
366-2 | 43-5
365-9 | 43-5
369-1 | 43-7
371-7 | 44-0
371-3 | 44-3
370-9 | 44-5
370-6 | 44-5
370-9 | 44-5
367-1} 44-5
364-1] 44-8
363-1 | 45-3
365-2 | 45:8
367-3 | 46-4
368-9 | 46-7
372-2 | 47-3
376-5 | 48-3
380-4 | 49-0
382-2 | 49-2
371-8] 49-2
369-0 | 49-2
343-3 | 50-1
342-1 | 50-2
347-0 | 50-3
349-9 | 50-4
348-5 | 50-5
343-4 | 50-8
345-1 | 51-2
349-1} 51-9
341-5 | 52-1
341-8 | 52.2
341-2 | 52-1
343-8 | 52-0
Effect of + 10° of torsion = — 0:84.
Observed 3™ after the Declination, s—=0:000010.
3%—_5h, Deflecting bar vibrated in the declinometer box.
45
stdmstsmn seemae |
293
Observer’s
Initial.
RMR SH Ses Ritts Mss aa
294 DAILY OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 23—Marcu 5, 1846.
Gottingen BIFILAR. BALANCE. % | Gottingen BIFILAR. BALANCE. | '%
Mean Time |} DECLINA- FS] Mean Time || Deciina-
of Declina- TION, Cor- |Thermo-|| Cor- | Thermo- & 2] of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-|] 2
tion Obs. rected. | meter. || rected. | meter. || tion Obs. rected. | meter. || rected.| meter. b
(GE Tiky Baal ° ’ Sc. Div. 2 Mice. Div. gS d. h m ° , Se. Div. ° Mice. Div. e
23 18 0 |] 25 05-89|| 551-4) 50-7 || 339-0] 50-9 | W128 2 O || 95 19.87]| 550-8] 50-2 || 341-9] 51-0
20 O 06-16 || 548-5 |. 50-6 || 340-0] 50-8 || W 4140 09-32|| 550-9} 51-0 || 383-1] 51-8
22 0 06-86 || 546-9} 50-5 || 343-4] 50-7 H Ga0 06-79 || 548-8] 51-5 || 379-2] 52-2
23 0 08-08 || 545-8] 50-5 || 341-8} 50-8 || W 70 07-37 || 550-7| 51-6. || 369-5| 52-2
24 0 0 10-11 | 548-1} 50-6 || 342-4] 51-0 | H Sao 06-76 || 552-0] 51-6 || 368-0] 52-2
a0 10-09 | 549-9 | 50-8 343-0} 51-2 H 10% 0 03-47 || 549-9 | 51-5 364-4| 51-7
2 0 10-13 | 551-6} 51-0 || 344-0] 51-5 || H
4 0 08-36 | 551-3 | 51-6 345-9 | 52.4 WwW 118 O || 25 05.94|| 547-1} 48-4 375-4| 48-6
6 0 07-91 | 550-0| 52-2 || 332-6] 52-2 H 20 O 05-49 | 545-0! 48-3 || 375-2) 48-5
th) 07-74] 551-9} 52-3 || 337-9] 52-7 || H 2250 04-89 || 537-8} 48-2 || 371-5| 48-5
8 0 07-18 | 552-9} 52-3 || 338-8] 52-7 | H 25.70 07-78 || 540-1 | 48-2 || 367-6| 48-7
10 O 06-66 | 550-1 | 52-1 341-6] 52-5 H 2 100} 09-98 || 534-2) 48.4 366-1} 49-0
LG! 12-51 || 535-3 | 48-8 || 365-1] 49-7
18 0 || 25 04-76|| 547-6| 51-8 |} 338-1] 51-8 || W 2 0 15-241) 544.3| 49.4 || 365-2) 50-2
20 O 05-27 || 546-3| 51-6 |} 340-2} 51-4 || W 40 11-54 || 545-1] 50-2 || 382-8} 50-9
22 0 06-06 || 543-7} 51-0 |} 341-1} 51-1 H 0) 07-45 || 549-6| 50-4 || 386-2! 50-9
2350 08-46 || 543-4] 51-0 || 338-7] 51-1 || W 720 07-741 551-8| 50-4 || 375-9] 50-6
Jo 10— 0 10-47 || 545-0} 51-1 || 339-0} 51-3 || H 8 0 07-57 || 552-0| 50-2. || 372-6] 50-5
1 0 11-30 |} 549-1} 51-1 336-8} 51-5 H 10 0 06-43 || 5535-6 | 49-8 365-9 | 49-8
210 11-08 || 550-6| 51-3 || 338-5] 51-7 || H
4 0 08-43 || 556-2 | 51-7 350-7 | 52-1 WwW 18 O || 25 05-76|| 547-1] 47-8 372-3 | 47-7
6 0 11-55 || 559-0} 51-7 || 358-5) 52-1 H 20 O 04-48 || 544.4| 47-4 |] 378-5| 47-2
0 14.33 || 551-1} 51-6 || 361-9] 52-0 | H 22 0 05-35 || 538-1| 47-2 || 375-7| 47-1
8 0 11-77 || 545-9 | 51-6 368-2 | 51-7 H 23:0 07-98 || 535-8 | 47-2 372-1| 47-2
10 Ot 15-76 || 522-6} 51-1 || 416-9] 51-0 | H 3F On 10-90 || 536-6 | 47-2 || 366-9| 47-4
0. 13-14 | 541-7 | 47-4 362-9 | 47-8
18 0 || 25 05-29 || 544-2] 48-3 375-9 | 47-7 W 2 10 13-59 || 547-5 | 47-7 369-0 | 48-4
20 0 06-68 || 540-2 | 47-7 || 379-0) 47-1 W 4 0 10-741! 552-9| 48-4 383-4| 49-2
22 O 09.32 || 540-0 | 47-2 376-6 | 46-8 H 6 0 04-81 || 548-7] 49-0 391-4) 49-6
23 0 09-29 || 542-2 | 47-1 373-1] 46-8 H Tmo 07-65 || 553-5 | 49-2 || 382.5] 49-8
26 (0:20 10-56 || 548-9] 47-1 369-5 | 47-1 W 8 0 07:42 || 552-3 | 49-3 377-6 | 49-8
1 O 10-90 |} 549-0! 47-3 365:8 | 47-5 B 10) 0 06-23 || 553-1} 49-4 371-0} 49-9
2 0 11-64 || 546-4] 47-6 371-9} 48.2 W
4 0 11-08 || 540-0} 48-8 400-2} 49-6 H 18 O || 25 07-341] 548-7 | 49-5 364-8 | 49-8
6 0 08-43 || 557-2] 50-0 401-9} 50-6 H 20 O 04-91 || 549-2 | 49-4 362-1 | 49-8
7 Ot 07-37 || 546-4] 50-2 418-0 | 51-0 H 22 0 05-38 || 540-0} 49-5 361-4} 49-8
8 0 06-86 || 545-2) 50-4 418-3 | 51-0 H 23:0 08-28 || 536-6] 49-6 362-0} 49-9
10 0 02-35 || 541-4| 50-5 || 382-4! 51-0 H 4 4109-0 11-67 || 539-7 | 49-6 || 357-0} 50-0
| | 1, 0 13-93 || 536-6 | 49-7 || 360-6) 50-2
18 0 | 25 05-60 | 544-6} 49-7 || 353-2) 49.8 | W 290 15-85 || 543-6] 49-8 || 363-4} 50-2
20.840 09-89 || 539-6} 49-5 352-3 | 49-6 W 4 0 11-27 || 553-9 | 50-1 374-8 | 50-7.
22.) '0 11-34 || 536-5] 49-4 348-3 | 49-7 H 6 0 06-73 || 553-2 | 50-4 379-6 | 51-0 |
23 O 09-32 | 543-5 | 49-6 348-4} 50-0 W Tw0 07-17 || 554-0! 50-5 372-1| 50-7 jj
a 0 0 1J-10 | 547-0} 49-8 352-4) 50-5 H 8 0 06-76 || 553-9| 50-4 368-3 | 50-5
1 0O 11-30 | 548-8] 50-1 350-6} 50-8 H 10 O 00-28 || 562-3.) 50-0 360-5 | 50-0
2 0 11-39 || 550-8 | 50-6 359-6 | 51-5 H
4 0 08-68 || 547-9 | 51-5 373-8 | 52-3 W 18 0O || 25 05-77 || 550-3 | 47-8 357-5 | 47-3
6 0 06-86 || 548-2 | 52-0 370-1) 52-6 EL 20 O 05-50 || 547-5 | 47-1 366-1} 46-5
7 0 | 25 05-32) 550-6] 52-1 365-4 | 52-6 jal 22-0 07-91 || 540-6 | 46-6 372-7 | 46-2
8 0O | 24 56-63 || 551-4} 52-0 366-7 | 52-7 B 23 +0 09-86 || 542-6 | 46-4 371-9} 46-2
10 O || 25 04-86 |} 545-0] 52-0 || 361-7| 52-5 B 40: 710 12-83 || 542.4| 46-4 || 373-3) 46-6.
Mb Dt 12-72]| 546-9| 46-7 || 373-4) 47-0
18 0O || 25 03-74)| 545-9} 50-6 359-9 | 50-5 W 23 13-59 || 556-5 | 47-0 376-9 | 47-5
20 O 05-65 || 542-9 | 50-2 363-0 | 49-9 W 4 0 07-51 || 553-4} 48-4 385-6| 49-3 _
22 0 07-04 || 538-8 | 49-7 366-1 | 49-5 H 6 O 07-40} 553-2 | 49-8 374-4] 50-5 —
23 «0 08-59 539-7 | 49-6 367-5 | 49-7 W 7 (0) 07-60 || 552-6 | 50-3 368-1| 50-7 |
28 0 0 10-40 || 542-2 | 49-7 365-6! 50-0 H 8 0 07-51 || 551-9 | 50-2 364-7| 50-5 | 1
LO 11-74 | 546-8! 50-0 365-7! 50-4 H 10 O 06-79 || 550-2 | 48-8 361-2) 49-7 |i Hu
DECLINATION. Magnet untouched, Feb. 164—Apr. 134, a
BIFILAR. Observed 2™ after the Declination, s=0:000135. BALANCE. Observed 3™ after the Declination, k=0-000010
t+ Extra Observations made.
BIFILAR. BALANCE.
DECLINA- iad Vaan | eee
TION. Cor- |Thermo-|| Cor- |Thermo-
rected. | meter. || rected. | meter.
Gottingen BIFILAR. BALANCE.
Mean, Dime™ | DECKINA= || a all ee
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. rected. | meter. |] rected. | meter.
Observer’s
Initial.
Observer’s
Initial.
Se. Diy. ? Mic. Div.
539-8 | 45-9 366-7
550-0 | 44-9 373-4
542-4 | 44-0 378-4
540-5 | 43-7 376-7
544-5 | 43-5 370-8
542-2 | 43-5 376-1
547-3 . 378-9
552-7 : 387-9
552-0 . 385-1
553-4 : 383-6
554-6 : 380-8
550-8 . 383-5
Se. Div. . Mic. Div. -
552-9} 48-0 364-3 | 49-0
558-9 | 49-2 370-3 | 50-2
555-3 | 50-4 366-5} 51-1
559-4| 50-7 359-3 | 51-3
556-1} 50-7 362-1} 51-0
549-1] 50-3 366-0 | 50-3
ecooocoos
548-9 | 46-7 || 356-3 46-0
549-5| 46-0 || 357-6| 45-6
540-3| 45-7 || 361-8 | 45-5
536-5| 45-7 || 364-9 | 45-7
543-8] 45-8 || 361-2) 46-1
547-4| 46-1 357-3 | 46-7
554-4| 46-7 || 354-6) 47-3
555:0)| 48-1 371-9 | 49-0
550-8 | 49-1 375-2 | 49-8
548-4 | 49-5 370-7 | 50-0
549-8} 49-6 || 370-8) 49-9
553-8 364-5 | 49-8
eoocoocooowoocooos
=
bo
551-5 . 376-4
550-0 : 372-8
544-9 “ 376-9
544-4 . 366-2
546-6 : 364-1
549-7
552-2 :
551-0 : 386-1
552-7
555-3
554-3
547°5
oooosooooococo
551-0 352-4 | 48-5
546-5 . 349-8 | 48-3
546-1 : 348-8 | 48-2
548-1 . 331-7 | 48-2
549-9 : 328-3 | 48-4
534-0 : 341-0} 48-9
541-4 363-2 | 49-4
599-8 437-1} 50-7
561:8 575-5 | 51-5
040-9 . 472-1) 51-5
540-9 : 454-9 | 51-5
522-6 396-5
cooooocooooooo
548-8
546-7 : 375-9
540-5
538-4
540-0 : 383-1
542-9 : 380-2
545-2 . 383-4
551-2 . 392-9
547-6 : 401-2
551-2 . 394.7
553-3 . 390-3
553-8 . 385-9
—
ow
eqoqoococo o>
545-2 345-3
531-7 | 47-9 319-5 | 48-0
531-1) 47-8 350:3 | 47-8
529-5 | 47-8 363-9
527-4| 48-0 || 368-6] 48-6
528-1] 48-5 || 381-5) 49-2
531-9} 49-0 || 417-8} 49-8
561-1] 49-9 || 496-3 | 50-5
548-3| 50-4 | 471-4) 51-0
548-5} 50-6 | 448-3) 51-0
543-4| 50-5 | 391-2) 51-0
543-4} 50-3 319-8 | 50-4
+
0
0
0
0
0
0
0
0
0
0
0
0
tS
552-2 : 377-7
552-5 : 376-2
549-6 : 376-2
548:5 . 376-0
549-6 . 370-5
549-1 . 367-7
552-2 . 372-0
552-8 . 382-4
07-11 || 550.4 . 381-0
08-09 |, 550-3 : 375-4
07-31 | 554-7 : 371-4
06-29 || 553-4 : 367-6
S'e'S'o eo © CS oOo SO
543-5 | 46-5 | 371-5 | 46-5
546-1] 46-2 | 373-5) 46-7
538-5 | 46-4 | 378-3] 46-9
539-1] 46-6 | 377-1) 47-1
536-7| 46-7 | 372-3) 47-2
539-9) 46-9 | 370-1) 47-4
19-55 || 552-8] 47-1 | 368-8] 47-7
12-48 |) 546-1} 47-3 | 381-4| 48-0
08-66 || 549-5] 47-6 | 396-1| 47-8
03-00 || 553.2} 47-3 | 411-3} 47-3
59-04 || 549-0] 47-0 | 407-0/ 47-1
10-30 || 552-8! 46-3 | 264-4) 46-5
ooooocoocoococoooceo
05-79 || 552-6 : 360-9
05-13 || 550-1 . 363-1
06-23 || 544-1 : 365-9
08-14 || 546-5 . 367-1
10-51 || 546-4 : 366-6
11-37 || 550-3 : 362-8] 48-2
Soro Otol e te eae
SJaegtseustsrte strsersersrserm seaeeretsersete seeertenerare ga4ane |
Metis sededeitsersesit sees setenSenn Peeters seres Hr stress |
cooooco
Fl
DECLINATION. Magnet untouched, Feb. 164—Apr. 134.
Birizar. Observed 2™ after the Declination, <=0-000135. BALANCE. Observed 3™ after the Declination, s=0:000010.
{+ Extra Observations made.
BIFILAR.
Cor-
rected.
Se. Diy.
539-8
547-7
552-7
598-4
952-0
548-1
551-1
547-2
534-8
533-7
534-5
538-3
542:-8
550-7
562-0
559-9
557-7
553-4
Thermo-
meter.
35-1
35-4
36-0
36-3
36-5
36-6
rected. | meter.
Mic. Div. .
| 379-6
BALANCE.
Cor- |Thermo-
371-9
388-5
399-4
397-8
403-0
397-1
35-7
36-0
36-8
37-1
37-2
37-2
38-2
37-5
37-5
37-8
38-5
39-5
40-3
41:5
42-4
42-6
42-8
42-6
365-0
371-8
376-2
370-1
365-4
365-6
371-3
380-3
377-7
375-6
376-1
373-9
363-3
367-4
367-7
370-3
363-6
364-3
41-2
40-7
40-8
363-5
370-1
378-4
384-3
385-0
370-9
356-7
359-4
359-0
358-2
349-3
345-3
350-8
362-9
368-6
363-4
356-5
353-3
347-9
346-9
354-8
348-2
353-7
349-0
354-6
395-1
= <5 —~w a ee ee
375-8
374.8
353-7
—_—_—_ ~— ow a
296 DAILY OBSERVATIONS OF MAGNETOMETERS, Marcu 16—26, 1846.
Gottingen BIFILAR. BALANCE. ‘ | Gottingen
Mean Time || Decuina- z-= | Mean Time | Decnrna-
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°g | of Declina- TION.
tion Obs. rected. | meter. || rected. | meter. || S| tion Obs.
Gq iy ay || Se. Div. ° Mic.Div.} ° dhs rasa cee a
16 18 0 || 25 06-19 || 542-3] 43-3 || 335-8) 42-5 | H | 21 2 O | 25 14.37
20 0 04-64 || 544-0] 42-2 | 353-6; 41-2 | H 4 0 11-00
22 0 05-85 || 536-8} 41-3 || 367-3| 40-4 || W 6 0 09-37
23 «+O 10-23 || 534-7} 41-0 | 368-1) 40-4 || H 7 «4 07-84
17 0 0 13-32 || 529-2} 40-8 | 379-1| 40-4 | W 8 0 04-55
10 16-92 || 524-2} 40-7 || 401-8; 40-4 || H 10 10 06-06 |
2 0 22.25 || 537-4| 40-6 || 422-1] 40-4 || W
4 0 16-21 || 556-4! 40-6 || 430-7] 40-8 | H | 22 18 0 | 25 03-54
6 0 07-27 || 544-8| 41-0 || 439-7] 41-4 | W 20 O 03-00
te) 07-89 || 552-1| 41-2 || 424-6) 41. W 22 0 03-79
8 Of 05-94 || 543-6; 41-3 || 423-4] 41-3 || W 23 0 06-66
10 Of 01-85 |} 542-1| 40-9 || 333-0} 40-9 | WJ 23 0 0 10-30
40 12-45
18 0 || 25 07-57 || 549-4] 38-8 || 352-8] 38-5 || H 2 0 13-39
20 0 07-72 || 533-0} 38-4 | 379-8) 38-2 || H 4 0 10-83
22 0 04-89 || 536-3| 38-1 || 390-7) 37-8 || W 60 08-21
23 2 06-73 || 528-9} 38-0 || 381-3] 38-0 || H Trnall) 07-20
18 0 0 12-04 || 517-8| 38-2 || 388-3} 38-5 || W 8 0 07-55
| an) 14-64 || 542-0} 38-7 || 385-8) 39-2 || H 10 0O 06-50
Yj 0) 17-09 || 539-9} 39-1 389-9} 40-0 || W
4 0 13-39 || 541-8) 40-2 | 410-0] 41-0 H 18 0 | 25 04-78
6 0 07-67 || 549-5 | 40-5 | 398-3] 41-1 || W 20 0 02-75
7 0 06-79 || 548-6} 40-4 || 395-7} 40-9 || W 22730 03-60
8 0 || 25 06-98 |) 550-7] 40-1 387-4| 40-5 || W 23 0 07-89
10 0 || 24 58-29|| 574-8] 39-6 || 364-9| 39-7 || W] 24 0 0 11-84
0 14-73
18 0 | 25 05-27] 543-9} 35-3 |) 376-8] 34-0 || H 20 15-47
20 0 04-61 |} 540-4] 33-7 || 380-7] 32-2 || H 4 0 15-41
22 0 05-58 || 533-2} 32-4 || 377-5] 30-9 || W 6 0 07-67
23 (0 08-85 || 530-0} 32-0 || 375-5} 31-0 | H we O 07-02
19 0 0 10-40 |) 531-1} 31-9 || 377-3] 31-4 || W 30 05-72
0 12-28 |) 534-3] 32-0 |) 381-8] 32-3 | H 10 0 06-32
2 0 14-15 || 543-9] 32-6 |) 387-4| 33-4 || W
4 0 11-54} 550-4] 35-0 |) 406-1} 36-4 || H 18 0 || 25 04-22
6 0 08-99 || 550-4| 37-3 || 404-8] 38-2 || W 20 O 01-41
0) 04-05 || 554-7 | 38-0 || 404-3} 38-7 || W 22 0 | 02-79
8 0 06-86 || 550-9} 38-2 || 394-8} 38-7 || W 23 °0 06-39
10 O 05-60 || 557-9| 37-9 || 378-8} 38-3 || W] 25 0 O 10-23
1) 0 13-43
18 0O || 25 05-15 || 548-6} 35-3 || 373-8} 35-1 H 2° 0 14-01
20 O 04-17 || 548-1] 34-6 |) 379-1) 34-2 || H 4 0 09-46
22 0 03-52 || 534-1 | 34-2 || 377-7} 34:0 || W GAG 06-44
23 0 07-05 || 529-2} 34-2 || 376-9| 34.4 || H a) 05-06
20 0 O 11-82 || 527-8} 34-3 || 374-9] 34-8 || W 3) (Y) 06-41
1 6 16-75 || 534-3} 34-8 || 375-2] 35-6 || H 10 O 06-76
2 0 15-89 || 539-6 | 35-4 || 379-7] 36-6 || W
4 0 13-36 || 552-3} 37-2 || 389-9] 38-5 || H 18 0O | 25 05.79
6 0 08-18 || 555-5} 39-1 || 398-5) 40-3 || W 20 0 08-73
nO 07-87 || 553-4] 40-0 || 399-2} 41-0 || H 22 0 04-58
8 0 07-98 || 552-9} 40-2 || 391-3] 41:0 | H 23°" 10 09-24
10 0 02-13 | 556-6 | 39-8 || 375-4| 40-3 || W | 26 0 OF 16-36
0 15-81
18 0 || 25 04-64|| 547-4] 35-5 || 365-8} 34-8 || H 2 Of 22-10
20 0 02-30 || 545-9} 34-8 || 375-1] 34-5 || H 4 0 09-66
22 0 04-01 |) 538-7] 34-7 || 371-9] 34-4 || W 6 0 05-69
23 0 03-77 || 539-2} 34-6 || 368-4] 34.6 || W 7 +O 06-24
21 0 O 09-39 || 540-8] 34-7 || 365-4] 35-0 || W 8 0 04-28
16 13-09 | 540-6! 34.9 | 369-7! 35-5 B 10 5 00-65
DECLINATION. Magnet untouched, Feb. 164—April 134.
BirizaR. Observed 2™ after the Declination, k=0-000135.
BALANCE.
} Extra Observations made.
Observed 3™ after the Declination, k=0°000010, |
r
NO
SOISKMWHOUN SOF]
S)
Oo
+
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oooooo eceooocoocoecooco”—
sponse) (eee) OE
DaILy OBSERVATIONS OF MAGNETOMETERS, Marcu 26,—APpRIL 6, 1846.
BIFILAR. BALANCE. Tas Gottingen BIFILAR. BALANCE. “se
> <1 Mean Time || Decrina- PS |
Cor- |Thermo- Thermo-|| 2° } of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2's
rected. | meter. meter. or tion Obs. rected. | meter. || rected. | meter. aa Hl
Sc. Diy. Q a Gy (hye ma © u Se. Diy. o Mic. Diy. ° }
552-6} 43-2 43-3 H} 1 2 O |] 25 16-35]| 544-0] 46-1 332-8 | 46-7 W I
548-1] 42.8 42-8 || H 4 0 12-40 || 555-1 | 46-4 || 350-6] 47-2 || HY
535-0 | 42-6 42-8 WwW 6 O 07-72 || 551-7 | 47-1 372:2| 47-8 W |
529-4| 42.7 43-0 | H 7 06-86 || 553-5 | 47-3 374-6 | 48-0 Ww
536-1] 42:8 43-4 W 8 0 07-81 || 556-1 | 47-4 366-8 | 48-0 W I
549.7 | 43-1 43-9 B | 10 O 06-03 || 555-2! 47-4 361-8] 48-0 W i
549-7 | 43-7 44.6 W
550-6 | 45-0 46-0 b 18 O | 25 09-53 |) 562-1) 46-2 332-2) 46-4 H
561-8 | 46-2 47-1 W { 20 O 03-94 || 552-3 | 45-8 342:0| 46-0 jal |
543-0 | 46-7 47-4 W 2240) 04-78 || 536-6} 45-9 354-4 | 46-3 W I
554-8 | 46-9 47-5 W Za 3 05-99 || 534-0 | 46-3 349-8 | 46-9 W i
554-0 | 46-8 47-2 W 2 208-0 10-21 || 536-1] 46-8 340-2 | 47-7 W i
| 1 0 14:96 || 534-9] 47.4 332-6] 48-5 isl
551-4| 44.4 44-3 || H | 0) 16-25 |) 538-4] 48-3 || 341-6] 49-5 || W |
547-9 | 43-8 43-7 H 4 0 11-48 || 555-3 | 50-3 356-9} 51-5 H |
530-6 | 43-5 43-5 WwW 6 0 07-74 || 562-3 | 51-4 349-9 | 52-5 W
521-0} 43-4 43-7 H «0 06-70 || 561-3 | 51-7 346-4] 52-6 W
526-5 | 43-6 44.1 WwW 8 0 06-79 || 558-8] 51-8 345-7 | 52-5 W
535-0] 43-8 44-5 B 10 O 06-66 || 559-8 | 51-4 332-1] 51-8 W i
545-0 | 44-2 45-0 W
548-3 | 45-0 46-0 ie] 18 O || 25 04-14]| 554-4] 49.0 347-5 | 48-9 H
556-2 | 45-7 46-3 ‘W 20 O 00:50 || 553-2] 48-5 349-7 | 48-3 H |
557-9 | 45-9 46-3 WwW 22 0 07-34 || 543-7] 48-0 331-6] 47-7 W
556-2 | 45-9 46-2 W 235) 0 10-43 || 535-5 | 47-9 331-3] 47-5 B
553-5 | 45-4 45-4 W a.) O20 13-46 || 537-7 | 47-7 318-7 | 47-4 W
r ¢ 14-70 || 542-2| 47.7 324-1] 47-2 Jal |
554-3 | 41-8 41-7 lal 2540 16-36 || 545-9| 47.4 326-9 | 47-1 W |
549-0} 41-3 41-3 lal 4 0 13-19 || 547-1 | 47-2 346-4] 47-0 H |
533-0} 41-2 41-4 WwW 6 0 07-17 || 555-7 | 47-1 364-6 | 46.9 W
526-6} 41-2 41-8 jel 7 0) 06-10 || 553-8] 47-0 362-8 | 46-8 W |
527-5 | 41-7 42-7 W 8 0 06-61 || 553-1 | 46-9 355-7 | 46-6 W YI
529-1) 42-5 43-9 H 10 0 05-94 || 550-9 | 46-3 361-7 | 45-7 W
538-5 | 43-6 45-0 W
561-1) 45-7 47-2 H 18 0 || 25 04-21 || 550-7] 42-2 365-7| 41-2 H
550-9 | 47-5 48-7 WwW 20 O 02-08 || 548-7 | 41.2 376-3] 40-2 H
555-8 | 47-9 48-8 W 22 0 01-48 || 534-3] 40-7 380-8} 40-1 W |
555:4 | 48-1 48-7 W yy 0) 04-41 || 532-0} 40-7 382-1] 40-5 EH i
554-1 | 47-6 48-1 W 4 0 O 07-67 || 531-5] 40-9 375-1] 41-1 B |
1 0 14-40 || 539-8 | 41-3 358-2} 41-8 B |
552-4) 44-8 44.7 H 20 17-39 || 546-7| 41-8 355-4 | 42.4 B
549-3 | 44-1 43-5 H 4 0 13-32 || 557-0] 42.3 371-5| 43-0 H
536-1] 43-4 43-2 WwW 6 0 06-59 || 552-6] 42-6 397-8 | 43-0 W
532-4] 43.2 43-3 H (an) 04-07 || 549-2 | 42-5 412-6} 42-8 W
530-2] 43-3 43-7 W 8 0 06-54 || 554-7] 42-3 397-2] 42.5 W |
533-6 | 43-7 44-5 H 10. O 02-77 || 554.2} 41-9 389-4 | 42.0 W YI
539-0} 44-3 45-2 W
552-4 | 45-7 46-7 H 5 18 0O | 25 04-73 || 548-1} 40-2 338-1} 40-2 W I
554-3 | 46-7 47-5 W 20 O 02-48 || 551-2) 39-9 340-6} 40-0 W
557-7 | 46-9 47-7 W 22 O 03-60 || 543-7 | 40-0 358-2/ 40.4 H
558-9 | 47-0 47-7 W 234 (V 07-94 || 535-4} 40-3 361-6} 41-0 W Yt
558-8 | 47-0 47-5 ‘W 6 0 O 18-60 |! 530-2} 40-9 367-3 | 42-0 H
eo) 17-09 || 536-3 | 41-5 368-0] 42-4 B
555-5 | 45-7 46-0 13) 2 0 16-33 || 554-7 | 42-0 402-4| 43-1 WwW
549-8 | 45-4 45.7 H 4 ot 25 20-90 || 585-6] 42-8 432-3 | 43-7 H
539-4 | 45-6 46-0 W 6 ot 24 56-37 || 582-4| 43-2 524-4] 44.1 180%}
556-5 | 45-7 46-2 H 7 O || 25 11-98] 566-0) 43-3 507-2} 44-1 H }
525-6| 45-9 46-4 W 8 Ot 24 46:19) 542-7 | 43.3 462-7 | 44.0 H if
541-5 | 46-0 46-6 H | 10 Ot 25 15-31! 431-3] 43-3 84-0 | 44-3 Hf
DECLINATION. Magnet untouched, Feb. 164—April 132,
BIFILAR. Observed 2™ after the D
MAG. AND MET. oBs. 1846.
eclination, k=0:000135.
BALANCE.
Observed 3™ after the Declination, k—=0:000010.
t+ Extra Observations made.
4
298
Gottingen
Mean Time || DECLINA-
of Declina- TION.
tion Obs.
a oh. m: By gd
618 0O | 25 01-66
20 O 01-86
22 ot 15-39
23) 10 10-31
a7 OVO 12-80
1 0) 13-25
2 0 13-16
4 0 06-51
6 O || 25 06-03
Uf. ot 24 53-17
8 0 || 25 02-19
10° 0 03-50
18 0 || 25 07-96
20 O 04-64
22 0 06-26
23 0 06-53
8 0 0 10-27
iP 0) 13-32
2 10 15-44
4 0 10-63
670 06-79
7 O || 25 03-67
8 0 || 24 59.64
10 O || 25 06.19
18 0O | 25 04.48
20 O 00-96
22 0O 02-08
23 «0 05-35
9 0 0 08-83
1-0 13-16
2) (0 14-15
4 0 11-34
6 0 05-90
7 O 05-03
8 0 04-51
10 O 04-95
18 0O |] 25 05-42
207 0 02-59
22' © 02-13
23 +O 05-53
10 0 O 08-65
1540 11-12
20) 13-22
4 0 12-96
6 0 05-83
110 07-84
8 Ot 02-37
10 O 05-70
18 0O || 25 06-64
20 O 03-25
22) 10 05-72
PBS 15) 08-28
Ti Ov 10 11-00
1 O 14-37
BIFILAR.
Cor-
rected.
Se. Div.
535-9
543-8
516-8
538-1
538-0
544-4
541-2
552-8
551-0
561-7
549-6
540-6
550-3
538-3
530-1
531-9
533-0
528-6
537-0
549-4
564-4
557-4
550-2
547-4
DECLINATION.
BIFILAR.
Apr. 134 23144 7h, Magnet with the short scale in the declinometer box; 144 74» the deflecting bar vibrated in the declinom:
See Introduction, p. xvi.
box.
+ Extra Observations made.
Thermo-
meter.
42-1
41-7
41-4
41-6
41-7
42-0
42.4
42-8
43-3
43-4
43-5
43.4
44-2
44-3
DAILY OBSERVATIONS OF MAGNETOMETERS, APRIL 6—16, 1846.
BALANCE.
Cor- The: rmo-
rected. | meter.
BALANCE. % | Gottingen BIFILAR.
> .£ | Mean Time || Dectina-
Cor- |Thermo- 2 ci of Declina- TION. Cor- |'Thermo-
rected. | meter. 16 tion Obs. rected. | meter.
Mic. Div. a ds hs) ns & % Se. Div. S Mie. Div.
260-7 | 42-2 Wi 1l 2 O|] 25 17-42|| 533-0] 44-5 354-1
342-1) 41-3 W 4 0 13-69 || 540-9| 45-3 368-3
366-9 | 41-7 H 6 0 09-87 || 568-7 | 46-0 367-4
361-3} 41-6 WwW TQ 02-99 || 555-1] 46-3 389-4
366-1 | 41-7 ET 8 0 05-15 || 561-2} 46-4 || 380-3
374-4| 43-0 Jel 10 O 07-78 || 555-8| 46-6 361-0
376-4] 43-3 H
391-2) 43-7 W112 18 0O | 25 02-55) 549.4| 50-2 || 338-0
404-4] 44-2 H 20 O || 24 59-98 || 547-1| 50-0 || 337-9
419-0| 44-3 H 22 0} 25 03-35 || 532-2) 50-0 336-9
409-4} 44-5 H 2a 0 05-69 || 533-4| 50-0 332-3
384-3 | 44-2 Hy i OF 13-30 || 522-5) 50-1 331-6
0 16-52 || 541-3| 50-4 329-7
301-1) 43-0 Ww 2° 0 16-75 || 545-3 | 50-8 345-9
350-8 | 42-9 W 4 0 17-89 || 559-5| 52-0 || 369-8
375-1 | 43-0 H 6H 16-28 || 567-0} 53-0 426-0
373-1 | 43-2 WwW 7 Of 13-72 || 555-9| 53-4 || 470-8
370-:9| 43-5 | H 8 0 02-80 || 553-9} 53-4 452-7
376-1 | 43-9 H 10° 0 10-06 || 553-3 | 53-2 266-9
379-8 | 44-5 H |
386-3 | 45-3 W 18 0 | 25 02.40] 546-5] 51-7 332-0
390-1) 45-5 H 20 0] 00-60 || 543-8} 51-2 341-7
399-9 | 45-6 H 22) 0 01-54 || 535-9 | 50-8 341-9
395-9 | 45-5 H 23" -@ 05-98 || 533-1] 50-9 || 341-4
379-8 | 45-2 H | 14 0); 0 10-99 || 533-1] 51-2 |) 343-1
1 Os 16-32 || 531-0} 51-5 344-6
354-1 | 42-7 WwW 2 10) || 16-91 || 536-8} 51-8 348-8
365-2| 42-3 || W 4 0| 14-51 || 561-3} 52-8 | 358-8
364-7 | 41-9 H 6 0] 07-35 || 551-6 | 54-0 360-5
367-8 | 42-3 W Teo 06-07 || 559-5| 54-2 353-9
370-2| 43-2 H 8 Of| 25 03-93 || 562-2} 54-4 370-1
368-8| 44.0 || H 10 Of) 24 48-27) 554.6) 54-6 | 342-6
370-7 | 45-0 H
374-3 | 46-4 WwW 18 0 | 25 01-04) 552-7| 52-6 332-6
375-7 | 47-5 H 20 O | 01-49 || 548-9} 52-0 333-7
372-0 | 47-6 H 22° 0 01-68 || 530-2) 51-4 343-6
371-0 | 47-7 il 23 «60 05-35 || 529-3) 51-2 342-9
366-5 | 47-5 Him oF 0 13-23 || 533-7) 51-1 338-9
1 0 | 15-88 || 530-3) 51-8 339-7
355-5 | 44-0 WwW 2° 0 17-83 || 546-3| 50-7 || 342-7
363-9 | 43-4 | W 4 0 16-15 || 540-0| 50-4 | 370-8
370-0 | 43-7 H 6 0 09-08 || 554-8| 50-1 | 373-3
367-1 | 44-2 W 77 iO} 06-06 || 561-4} 50-0 378-2
363-8 | 45-2 H 8 0 || 25 00-87 || 551-4] 49-7 384-3
358-7 | 46-2 H 10 O || 24 59-90]| 544-0} 49-5 374-6
354-2 | 47-2 H
360-1 | 48-5 WwW 18 0 || 25 04-04 || 549-7| 48-1 302-4
399-7 | 49-5 H 20 0 07-32 || 546-4| 47-8 278-0
411-7 | 49-7 H 22 0 | 08-82 || 515-6| 47-7 321-6
443-8 | 50-0 H 23° OT; 08-82 || 505-9| 47-8 | 340-3
383-2 | 49-5 Ef 86 0b © 15-02 || 524-3] 48-0 | 409-4
i ay) 19-10 || 529-4} 48-4 394-0
261-0) 45-3 W 2 0 | 19-51 || 548-6} 48-7 412-5
291-1) 44-5 W 4 Of! 15-94 || 566-2| 49-7 490-5
325-7 | 44-2 H 6 Ot) 25 10-80 || 560-2} 50-6 501-2
328-8 | 44-3 W 7 Of| 24 59-32]) 591-9} 51-1 458-3
339-1] 44-5 H 8 Of) 25 00-53 || 557-6) 51-3 427-1
347-61 44-8 | H 10 Ot) 24 44-731] 585-5! 51-6 253-9
Torsion removed; Apr. 134 224», + 3°; 144 8th, + 8}°,
Observed 2™ after the Declination, <=0:000135.
BALANCE.
144 20h, + 32°.
Effect of + 10° of Torsion, =—0*
Observed 3™ after the Declination, k=0:0000
45-2
46-0
46-7 —
47-0
47-2
47-2 |
50-2 |
50-0 |
50-0 |
50-3 |
50-5
51-0 |
51-7 |
52-9 |
54-0 |
54-5
54-7 |
54-0 |}
51-7 |
51-0
50-8 |)
51-0 |
51-7 |
52-3 |
52-7 ||
54-0 |
55-0 |
55-2 |
55-2 |)
55-4 |
52-4
51-6 |
50-9 |)
50:8 |
50-7 |
50-5 |
50-4 |
50-1 |
49-7
49-7
49-5
49-3 |
47-38 | W
47-7 |
47-9
48-0
48-5
49-0 | #
49-5) 1%
50:3
51-5
52-0
52-0
52-5
DarILy OBSERVATIONS OF MAGNETOMETERS, APRIL 16—27, 1846. 299
BIFILAR. BALANCE. ‘ | Gottingen BIFILAR. BALANCE. , oa eS
men = | eo || Mean Time || Deciana- |-——-———_ |---| b. 3
TION. Cor- |Thermo-|| Cor- /Thermo-|| 2‘3] of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-| $°3
rected. | meter. || rected. | meter. 5 t tion Obs. rected, | meter. || rected. | meter. | 5 ze
hb mi ° 4 Se. Div. © Mic. Div. 7 d. h. m. 2 4 Se. Div. e Mic. Div. |
18 0 | 25 03-09|| 550-1) 50-7 288-4] 50-8 W | 22 2 O|| 25 15-27]] 545-5] 44-7 352-5 | 45-3 W
(20 ot 09-27 || 519-3] 50-4 328-0} 50-5 W 4 0 11-69 || 555-2 | 45-5 372-8| 46-1 | W
22 0 09-35 || 531-0! 50-1 314-8} 50-3 H 6 0 07-08 || 585-7] 46-5 395-0} 47-0 H
23 0 08-95 || 526-6] 50-0 318-8 | 50-2 WwW tan 10 07-07 || 566-2] 47-0 419-9} 47-5 H
0 0 11-41 || 524-1} 50-0 325-2] 50-2 H 8 0 03-60 || 558-5 | 47-3 419-4} 47-7 H
1 0 14-50 || 531-4) 50-0 328-6 | 50-2 H 10 O 06-32 || 554-6] 47-3 384-4] 47-2 H
B82 0 16-80 || 539-1} 50-0 336:8 | 50-5 H
Bd o 09-76 || 555-9} 50-0 378-9 | 50-4 W 18 0 || 25 02-70)|| 543-6) 45-1 368-6} 45-0 W
6 0 07-40 || 566-3} 50-0 380-1] 50-3 H 20 O 01-04 || 541-1) 44-9 369-2] 44-8 W
wiz o 00-91 || 560-6; 50-0 382-5 | 50-2 H 22 0 02-62 || 531-4] 45-0 364-9 | 45-2 H
8 0 06-03 || 556-3) 49-9 371-9} 50-2 H 23 O 05-32 || 532-4) 45-1 358-0] 45-5 ‘W
B10 O 02-01 || 547-2} 49.7 333-4 | 50-0 H | 23 0 O 08-95 || 539-1] 45-4 356-5 | 46-0 H
1 O 11-95 || 540-4] 45-7 350-3 | 46-2 H
718 O || 25 04-64] 544-1} 48-6 346-9 | 48-5 W 2) 10 14.84 |) 541-3 | 46-0 350-1 | 46-7 H
20 O 00-84 || 543-8) 48-3 356-4] 48-1 ‘W 4 0 09.82 || 552-1} 47-0 357-2] 47-8 W
322 0 04-44 || 528-0} 48-1 358-4 | 48-2 H 6 0 07-40 || 559-9 | 47-7 360-9| 48-3 || H
323 «#0 05-27 || 528-9| 48-0 356-2) 48-3 WwW 7 0 06-17 || 558-7| 47-7 361-5 | 48-3 H
0 0 07-84 || 525-9| 48-0 352-9 | 48-5 H 8 0 06-04 || 558-6) 47-7 362-2} 48-3 ii
1 0 12-51 || 527-3 | 48-3 348-3 | 49-0 H 10 O 06-90 || 563-2] 47-4 353-1] 47-6 H
2 0 14-13 || 528-9} 48-7 345-1) 49-2 H
4 0 10-77 || 543-6 | 49-4 351-8 | 49-9 W 18 0 || 25 04-86 || 557-7) 46-0 349-0] 46-0 W
6 0 07-13 || 554-2} 49-8 369-4 | 50-2 H 20 O 02-25 || 554-0] 45-7 357-4] 45-8 WwW
a. 0 06-53 || 556-8 | 49-9 373-6 | 50-3 H 22 0 02-59 || 537-0] 45-7 360-8} 45-8 H
gs (0 06-14 || 558-1) 49-8 372-2 | 50-2 H 23 0 04.84 || 534-1) 45-7 360-2] 46-0 WwW
10 O 06-39 || 551-7 | 49.7 360-5 | 49-7 H | 24 0 0 08-92 || 529-4] 45-7 358-6 | 46-1 H
tk O 13-29 || 536-7 | 45-9 351-4} 46-2 B
18 0 | 25 01-95|| 544-5) 44.7 324-4] 44.0 W 2 0 15-38 || 538-8 | 46-0 354-2] 46-4 H
20 0 01-61 || 549-0} 44-1 330-7 | 43-8 W 4 0 11-54 || 534-9} 46-2 361-0) 46-6 W
22 0 03-55 || 535-7 | 44-1 350-1 | 44-5 H 6 0 07-47 || 571-4] 46-3 369-2| 46-8 H
2 0 05-52 || 532-2) 44-3 351-5 | 44-7 WwW (Lo) 06-43 || 573-9} 46-4 382-2} 46-8 H
oo. 0 08-92 || 532-3 | 43-7 350-7 | 45-0 H 8 0 05-72 || 560-1} 46-5 379-7| 46-8 | H
a 0 12-11 || 535-0] 45.2 345:8 | 46-0 H 10 O 06-23 || 564-0} 46-5 360:6| 46-7 || H
5 0 13-81 || 536-4] 45-8 346-2 | 46-7 H
4 =0 11-91 || 542-7) 47.4 358-2 | 48-3 WwW 18 0 || 25 08-48 || 549.6} 46-0 285-7! 46-1 WwW
5. 0 09-02 || 557-0| 48-7 357-3 | 49-5 H 20 O 05-82 || 544-1] 45-8 313-0] 46-0 W
7 0 10-06 || 565-4} 49.2 368-9 | 49-7 H 22 0 06-21 || 535-0} 45-9 340-3| 46-5 | H
8 0 00-85 || 563-5} 49-7 390-5 | 49-8 WwW 23 «+O 05-79 || 529-5 | 46-4 348-7| 47-0 | W
10 0 04-58 || 556-8 | 49-4 370-9 | 49-2 H |25 0 0 08-86 || 531-8} 46-9 350-6 | 47-7 B
1 O 12-38 || 533-2} 47-5 352-6] 48-5 H
118 0 || 25 02-42] 547-2) 45-8 359-6 | 45-1 W 2 0 14-64 || 544-8 | 48-2 353-7 | 49-4 H
20 0 02-23 || 543-4] 45-0 362-9 | 44-3 W 4 0 11-81 || 549-3} 49-8 366-4] 50-7 W
i 22 0 04-46 || 534-2} 44-6 363-0] 44-5 H 6 0 07-40 || 557-4} 51-1 370-0} 52-2 | H
; 23 0 06-03 || 531-0} 44-6 362-1 | 44-7 H 7 O 06-21 || 565-7) 51-7 365-8] 52-4 H
0 0 09-62 || 533-2) 44.8 364-2] 46-5 H 8 0 04-51 || 566-2} 51-9 372-2] 52-4 || H
i 0 12-31 || 540-1 | 45-5 343-7 | 46-2 B 10 O 04-42 || 556-0) 51-5 360-0] 51-7 H
| 2 0 14-15 || 542-3| 46.2 | 344.1] 47-2 || H |
2 0 11-21 || 550-5| 47-5 357-9 | 48-3 W | 26 18 O || 25 03-09 || 549-2} 43-4 355-4| 42-2 | W
6 0 07-98 || 541-1} 48-2 357-3 | 48-8 H 20 0O 03-06 || 548-1) 42-7 358-4} 41-7 | W
7 0 05-22 || 555-1 | 48-2 365-1 | 49-0 H 22 0 05-13 || 539-4) 42-5 368-6] 42-2 | H
1/8 0 06-01 || 557-9} 48.2 363-0] 48-8 H 23 0 07-89 || 532-5] 42-6 370-6| 42-6 | W
: 10 0 06-79 || 555-3] 47-9 359-5 | 48-3 oF (ORO 10-31 || 528-0} 42-8 372-3| 43-1 || H
1 O 11-88 || 537-6 | 43-2 364-3 | 43-7 H
18 0 || 25 02-39|| 543-8! 45-0 | 344-9] 44.4 W 2 0 15-14]| 552-4) 43-6 370-9| 44-2 H
20 0 04-49 || 552-1| 44.3 342-9] 43-8 WwW 4 0 07-34] 550-1] 44-3 399-7 | 45-0 W
| 22 0 04-41 || 538-1} 44-0 359-8 | 44-0 H 6 0 06-86 || 547-9} 45-0 400-6| 45-7 | H
23° 4 06-53 || 532-4) 44.0 562-6} 44-3 W 7 0 06-27 || 562-8} 45-2 393-1] 46:0 | H
2 0 0 10-77 || 541-8 | 44.0 347-5 | 44-6 H 8 0 06-46 || 561-2} 45-2 384-7| 46:0 | H
| 1 0 15-78 |! 532-6 | 44.2 350-7 ) 44-7 H 10 0! 06-39 || 555-0} 45-2 377-2| 45-7 H
DECLINATION. Magnet untouched, April 144, 1846—May 1847.
t a Observed 2™ after the Declination, <—0:000135. BALANCE. Observed 3™ after the Declination, s=0°000010.
| + Extra Observations made.
300 DAILY OBSERVATIONS OF MAGNETOMETERS, APRIL 27—May 7, 1846.
Gottingen ~ BIFivaRr. BaLaNcg. ae Gottingen BIFILAR. BALANCE, |
Mean Time || DEcLINA- z-£) Mean Time || Decurina- =
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2-2 | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter. 5 Eo tion Obs. rected. | meter. || rected. | mete
d. ih. m. a a Se. Div. & Mic. Div. e. ad. Hh: am 3 Z Se. Div. “4 Mic. Div. P. -
27 18 O | 25 04-59]| 547-6} 43-1 361-3 | 43-0 W 2 2 0] 25 11-86] 540-6] 54-8 || 312-9] 55.9
20 O 04:04 || 540-8} 42-7 || 369-6) 42-5 W 4 0 10-61 | 557-4 | 56-4 340-9 | 57-5
22 0 04-17 || 532-7 | 42-7 376-8 | 43-0 H 6 0 08-08 | 561-1| 57-4 || 366-6| 57-7 |
2B) (U 06-73 || 526-1| 42-9 || 377-0; 43-6 W 7 O || 25 06-90 | 568-6} 57-4 || 377-3) 58-2
28 0 O 08-38 || 526-9} 43-4 373-0 | 44-4 isf 8 0 || 24 59-83 || 563-9] 57-3 || 388-5| 58-0 |
1 0 11-01 || 534-2 | 44-0 || 366-7 | 45-2 H 10 O || 25 05-23 |) 559-0] 56-8 376-4| 57-2 |
250 12-90 || 543-5 | 44.7 362-5 | 45-7 H a
4 0 09-35 || 551-7| 45-8 371-1| 46-7 || W 3.18 O || 25 07-00 || 522-4] 53-3 300-9 | 52-5 |
6 0 06-81 || 558-1) 46-7 || 376-1] 47-5 H 20 O || 24 59-74] 545-0] 52-7 || 297-5| 51-7
“a 10 05-96 || 561-5 | 46-9 377-8 | 47-7 H 22 0 || 25 05-32 || 531-7} 52-0 || 322.9] 51-0 |
8 0 06-16 || 559-9 | 47-3 375-4| 47-8 || W 23° 10 07-78 || 528-6 | 51-7 || 327-4| 50-7 |}
10 O 05-15 || 558-7 | 47-1 365-8 | 47-5 H 4 0 0 13-16 || 532-8] 51-4 328-1] 50-3 |
1 0 15-78 || 537-6} 51-1 330-6 | 50-2 |
18 0 || 25 02-35 |) 550-0] 43-8 || 365-5| 43-2 | W 2710 18-92 || 551-2] 50-7 || 335-6| 49-7 |
20" 0 01-58 || 546-5 | 43-3 368-9 | 42-7 || W 4 Of 21-32 || 579-3 | 50-1 418-1} 49-3
22 0 01-88 || 539-8} 43-0 376-2 | 43-2 H 6 0 12-23 || 564-0| 49-7 || 487.4] 48-8 |
py (0) 03-32 || 532-7 | 43-3 373-9 | 43-7 WwW 0 08-28 || 569-4] 49-3 || 460-5) 48-5 |
29 0 O 14-18 || 541-3) 43-7 369-8 | 44-7 H 8 Of|| 25 04-88 |) 573-1] 49-0 504-2| 48-2 |
10 10-30 || 536-4 | 44-5 368-0 | 45-6 H 10 Of) 24 51-59 || 490-4 | 48-5 291-1} 47-8 |}
2) 10 12-15 || 553-0} 45-4 367-4| 46-5 H a)
4 0 12-08 || 554-3 | 47-3 360-0 | 48-3 WwW 18 0 || 25 03-06 |) 529-1] 47-2 234-7 | 46-8 |]
6 0 09-60 || 557-4 | 48-7 373-0 | 49-7 H 20E80 02-84 || 543-5 | 47-0 293-3| 46-9 |}
ft 10 08-21 || 560-1 | 49-3 374-1 | 50-4 H 22°10 05-72 || 535-7 | 47-4 || 323-2) 47-7 |
8 0 08-01 || 563-8 | 50-2 360-6 | 50-7 H 23 «0 07-27 || 533-6 | 48-0 || 332-0) 48-7
10 0O 06-59 || 559-7 | 50-2 || 355-1 | 50-7 H a 0 0 10-41 || 535-8 | 48-7 || 327-0} 49-5 |}
1 O 13-16 || 536-7 | 49-4 || 327-8] 50-2 |
18 O} 25 00-89] 553-1] 47-5 341-9} 47-0 W 2 5 15-25 || 540-5 | 50-4 || 338-6| 51-5 |}
20 0 01-68 || 552-1 | 46-9 346-1 | 46-5 W 4 0 13-57 || 557-2) 52-2 || 356-9} 53-5 #
22°70 03-63 || 550-2] 46-7 || 354-4| 46-6 H 6 0 09-17 || 564-9 | 53-9 || 419-1] 55-0 |
23 ~O 05-80 || 541-0 | 46-7 || 357-2} 46-8 H 7 10 07-37 || 578-4 | 54-4 || 427-8] 55-2 |
30 0 O 10-01 || 530-0} 46-9 361-5 | 47-3 H 8-0 04-75 || 560-9| 54-4 || 420.7] 55-2 }}
16 11-77 || 538-2 | 47-3 350-8 | 48-0 H 10 O 03-70 || 546-4| 54-0 || 393-9| 54.7 ff
2 0 13-52 || 552-6 | 47-8 347-7 | 48-5 H |
4 0 10-23 || 552-9| 48-6 || 368-0] 49-3 || W 18 O || 25 03-47 || 544-0] 51-4 |} 285.4} 51-2
6 0 09-02 || 550-2) 49-3 373-9 | 50-0 H 20 O 03-70 || 533-8 | 51-0 333-6| 50-7 |)
710 07-20 || 559-9| 49-7 || 369-4] 50-3 H 22 0 04-21 || 533-8] 50-8 356-4| 50-7 |
8 0 06-53 || 560-4} 49-8 368-8 | 50-5 H 23°10 05-22 || 530-6} 50-8 367-7| 51-2 |
10 O 05-89 || 558-6} 49-8 358-4 | 50-2 H 6 0 0 08-73 || 532-7| 51-0 || 365-4] 51-4
1 0 10-75 || 548-4} 51-3 362-3| 51-8 |
18 0O || 25 03-50 |} 555-3 | 48-6 351-0 | 48-6 W 2 0 11-42 |) 543-1| 51-7 371-7| 52-4 | ¥
20 O 04-56 || 552-3 | 48-3 355-2| 48-4 WwW 4: 0 09-35 || 552-0} 52-8 389-5 | 53-8 |]
22 0 05-06 || 541-9} 48-4 || 353-9] 48-8 H 680 07-67 || 566-6 | 54-0 || 401-1] 55-1 |}
23 0 07-31 |} 533-8 | 48-7 || 353-3] 49-4 | W 70 07-00 || 555-9| 54-7 || 400-8} 55-5 1
1 0 0 09-53 || 529-8] 49-4 || 349-3] 49-8 H 8 0 02-64 || 570-5 | 54-9 392-3 | 55-7 || V
1 0 12-45 || 533-6] 49-8 339-8 | 50-7 H 10 0O 03-84 || 548-7] 55-0 || 388-4] 55:5 | ¥
2 0 13-36 || 542-4 | 50-4 || 336-5| 51-3 1e6
4 0 10-81 || 552-6| 51-6 || 350-0} 52-6 WwW 18 0 || 24 59-57 || 544-3] 52-2 || 363-5) 51-7
6 0 06-03 || 559-2) 52-5 358-4] 53-5 H 20 O || 25 00-57 |) 538-1] 51-7 || 370-5| 51-0
a) 06-06 || 560-0) 52-7 || 357-7| 53-7 isk 22° 0 04-66 || 541-6} 51-4 || 369-6} 51-2
8 0 06-23 || 559-7) 52-8 || 353-7] 53-8 H 23 «0 06-76 || 537-6} 51-5 366-5 | 51-7
10 O 05-79 || 556-3| 52-8 || 346-6] 53-7 fal % 0-0 10-47 || 541-2] 51-7 || 353-5) 52-1
hg) 13-72 || 536-1] 52-0 || 357-8} 52-7
18 0 || 25 03-02]| 553-3 | 52-9 342-9 | 53-3 WwW 2750) 14-11 | 548-5} 52.4 355-5 | 53-0
20 0 03-23 || 552-3 | 52-9 342-0 | 53-3 WwW 4 0 11-01 || 557-2} 53-0 || 360-5] 53-9"
22 0 03-14 || 543-4 | 53-0 337-4 | 53-8 H 6 0 04-04 || 577-7 | 53-7 | 418-8] 54-0
23 0 06-21 || 531-2) 53-3 339-3 | 54-2 Ww 70 04-98 || 564-3] 54-0 || 432.1) 54-7
2 30> 10 08-34 || 531-9] 53-7 || 333-3} 54.7 H 8 0 02-79 || 559-0} 54-1 430-7 | 54-8
1 > 70 11-10!) 536-7! 54-2 || 321-71 55-2 Jal LON 02-19 || 547-0} 54-0 || 402-5| 54-3”
DECLINATION. Magnet untouched, April 144, 1846—May 1847. ' =
BIFILAR. Observed 2™ after the Declination, s=0:000135. BALANCE. Observed 3™ after the Declination, k=0°000010
+ Extra Observations made.
DAILY OBSERVATIONS OF MAGNETOMETERS, May 7—18, 1846. 301
BIFILAR. BALANCE. % _: | Gottingen BIFILAR. BALANCE. 7. ii
DECLINA- 2.2 Mean Time || Deciina- PS
TION. Cor- |Thermo-|| Cor- |Thermo-|| 3°3 | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| $°3
rected. | meter. || rected. | meter. 5 } tion Obs. rected. | meter. || rected. | meter. || 5'~ |
fen. ||.92 Se. Div. ° Mic. Div. 2 Gh In, weg OR Se. Diy. o Mic. Diy.| °°
18 0 || 24 58.42] 545-8] 51-4 || 332-1] 50-7 H|13 2 0 || 25 14-26] 541-8} 56-3 || 368-0} 57-3 || W
20 O || 25 00-75] 544-5; 51-1 353-3 | 50-7 H 4 0 03-87 || 598-5 | 57-8 || 404-6] 58-7 || H
22 0 05-08 || 541-9} 51-1 358-4| 51:0 | W 6 0 07-92 || 576-4) 58-9 | 395-2) 59-5 || W
ae 0 05-89 || 542-5] 51-2 || 353-7) 51-7 H 7 +O 09-15 || 555-7 | 59-1 375-3 | 59-6 || W
0 0 10-18 || 541-3] 51-8 |) 352-4 52-3 W 8 0 04-10)} 560-6) 59-1 389-7 | 59-5 || W
10 11-79) 551-1 | 52-4 |) 350-3) 53-2 B 10 O 04-34 || 543-2) 58-4 || 353-8) 58-3 || W
2 0 11-10 | 555-5} 53- 352-1] 54-1 W
4 0 09-35 || 566-2) 54-7 364-8 | 55-7 H 18 0 || 25 01-24] 546-5] 54-4 | 310-1! 53-5 H
6 0 07-64 || 566-3) 56-1 393-4] 57-0 || W 20 0 00-28 || 530-9| 53-7 | 360-6) 53-0 || H
7) 07-60 || 563-3} 56-7 |) 414-5] 57-5 || W 22) (0 01-98 || 524-5 | 53-5 || 364-4) 53-2 || W
8 0 07-57 || 560-2} 57-0 || 404-1] 57-7 || W 23 0 05-35 || 521-3) 53-6 || 362-5) 53-5 H
10 O || 25 01-05)}| 556-5) 56-8 || 391-0} 57-0 | WH 14 0 O 07-71 || 531-6| 53-8 | 362-7) 54-0 || W
0 10-00 || 546-4| 54-2 || 363-9) 54-7 || H
18 0 | 24 58-69 || 541-9} 52-7 || 344.8} 51-7 H 2 0 10-09 || 556-9 | 54-7 || 376-9| 55-3 || W
0 0O || 25 00-40} 537-6] 52-1 362-3 | 50-7 H 4 0 07-51 || 555-6 | 55-9 || 405-8| 56-4 || W
p2 O 04-71 || 533-1] 51-7 || 369-1) 51-3 Ww 6 0 05-72 || 569-1| 57-1 389-1] 57-4 || W
5 a) 07-74) 532-7) 51-8 370-0] 52-2 || H 7 +O 07-07 || 559-2| 57-6 | 381-0) 57-8 || W
0 0 08-48 || 543-9} 52-3 353-0] 52-8 || W 8 0 11-41 || 576-1} 57-9 | 371-5} 58-0 || W
1 0 13-19 || 530-2} 52-9 || 359-5) 53-8 | H 10 O 06-37 || 551-4] 57-7 | 348-2] 57-4 || W
2 0 13-76 || 564-4] 53-8 || 367-4| 54-9 || W
4 0 13-20 || 557-8) 55-7 || 410-9} 56-7 H 18 0 || 25 01:34] 543.3) 53-5 | 309-3] 52-5 H
6 0 07-54 || 562-6) 57-0 || 457-5) 57-9 || W 20 O 00-99 || 535-9| 52-8 || 340-1} 52-0 || H
a 0 06-97 || 565-8} 57-3 || 415-8] 58-0 || W 22- 0 05-49 || 519-8] 52-5 || 348-9] 52:0 || W
8 0 || 25 06-39] 564-1} 57-4 || 413-9] 58-1 WwW 23 0 08-09 || 522-5] 52-5 || 347-0) 52-2 || H
0 O || 24 57-56]) 541-1} 57.3 372-6| 58-0 | WHE15 0 6 11-64|) 526-0} 52-7. || 345-7} 53-0 || W
1 0 13-56 || 531-6} 53-2 | 346-3) 54-0 || H |
8 0O || 25 01-70] 543-5| 53-2 || 378-3] 52.2 | H 20 11-77 || 540-8} 53-9 || 356-6] 54-8 || W
20 «0 02-01 |) 539-2] 52-7 377-8 | 51-9 H 4 0 09-42 || 564-3) 55-6 || 372-5) 56-5 || H
2 0 05-40 |) 530-8} 52-6 || 364-5] 52-3 || W 6 0 08-28 || 568-1] 57-3 || 374-2) 58-1 WwW
3 0 07-81 || 530-3) 52-7 359-2] 52-7 || H 7 O 09-08 || 562-9| 57-7 || 369-3] 58-3 || W
M0 Oo 12-11 || 536-0; 53-0 || 360-5} 53-2 || W 8 0 08-39 || 559-3] 57-8 | 366-8] 58-3 W
a 0 13-56 || 536-4} 53-4 361-5} 53-9 | H 10 0 06-97 || 552-4] 57-2 | 360-8] 57-3 | W
2 0 13-44 || 551-8| 54-0 || 357-5] 54-7 || W
4 0 10-83 || 555-4| 55-4 || 357-8| 56-0 H 18 0 || 25 03-45 ]| 546-4| 52-8 |) 372-2) 51-7 H
6 0 07-58 || 566-4| 56-6 368-3 | 57-1 WwW 20 0 00-77 || 535-1] 52-2 || 386-6] 51-2 || H
7 0 04-49 || 567-0} 57-0 || 388-3} 57-3 || W 22 0 00-50 || 527-9} 51-9 || 379-6} 51-5 W
18 0 06-73 || 570-0) 57-2 || 382-1] 57-4 || W 23 0 03-94 || 525-6] 52-0 || 373-9) 52-0 || H
7}0 O |] 25 03-55|| 557-8} 56-8 375-4| 56-7 || W716 0 0 07-37 || 528-7 | 52-3 || 362-8] 52-7 || W
| 17 0 09-39 || 532-8} 52-8 || 356-7) 53-5 H
‘8 OF 24 51-10 }} 529-2) 52-8 || 235-7} 52-0 isl 2 0 11-10}) 541-1] 53-4 || 353-6] 54-4 || W
0 OF| 24 58-63) 508-2} 52-7 || 286-7) 51-7 H 4 0 10-61 || 548-6} 55-2 || 356-0} 56-2 H
12 0 | 25 11-99] 517-7) 52-4 || 282-5) 52-3 | W 6 0 09-37 || 565-1] 56-5 || 359-1| 57-2 || W
i 13 Ot 10-43 || 492-4] 52-6 || 315-8] 52-9 | W 7 O 07-67 || 563-8 | 56-7 || 362-9} 57-3 || W
12:0 ‘Of 19-61 || 509-1 | 53-0 || 324-1) 53-8 || W 8 0 06-19 || 567-6} 56-8 || 365-8) 57-3 || W
#1 ot 16-41 || 522-8} 53-8 || 335-3) 54-8 || H 10 0 || 25 04-79|| 557-7| 56-4 || 369-0! 56-4 || W
112 0 15-45 || 534-5] 54-8 || 339-9] 55-8 || W
27-0 10-06 || 555-4] 56-6 || 486-5| 57-6 | W |] 17 18° 7 || 24 59-73)) 550-5} 50-3 | 366-3| 49-8 || H
a\6 0 06-61 || 643-9| 57-6 || 483-3] 58-4 || W 20 O || 25 00-04 || 546-3} 50-2 || 371-1) 49-8 || H
| OF] 25 17-61) 572-8} 57-8 || 412-9] 58-5 | W 22 0 02-55 || 537-2] 50-4 | 361-2} 50-5 || W
8 OF) 24 56-18] 577-8} 57-8 || 375-6| 58-6 | W 23 0 04-86 || 536-5] 50-7 || 360-0} 51-0 || H
"(0 OF) 24 58-16) 520-8] 57-6 || 219-6] 58-1 Wiis 0 0 07-34 || 541-2} 51-0 | 344-3) 51-5 || W
Ie 0 09-53 || 546-6| 51-4 | 339-3/ 52.0 || H
8 O | 25 02-39) 531-3) 55-0 || 319-8] 54-7 H 2 O 11-34 || 552-3) 51-7 | 336-4| 52-2 || W
500 03-82 || 535-2) 54-4 || 347-4] 54-2 | H 4 0 11-12]} 562-5] 51-9 | 346-2) 52-2 || H
2 0 06-06 || 522-3} 54-3 || 342-0} 54-56 | W 6 0 11-00|| 574-0] 52-0 || 363-8) 52-3 || W
“PO 10-87 || 515-2} 54-5 353-2] 55-0 | W 7 O 08-48 || 572-8) 52-0 || 380-1] 52-3 || W
13) 0 12-13 || 530-4] 54.8 354-6] 55-5 | W 8 0 08-55 || 570-4| 51-9 | 375-5} 52-3 || W
yl Oo 16-06 || 534-11 55-4 || 352.41 56-3 | H 10 0 06-14! 565-8! 51-8 || 365-51 52-0 Ww
7 DECLINATION. Magnet untouched, April 14¢ 1846—May 1847.
FILAR. Observed 2™ after the Declination, k=0-000135. BALANCE. Observed 3™ after the Declination, s=0:000010.
t Extra Observations made.
_ jAG. AND MET. oss. 1846.
302 DaILy OBSERVATIONS OF MAGNETOMETERS, May 18—28, 1846. .
BIFILAR. BALANCE. Géttingen BIFILAR. BALANCE.
Mean Time || Drecrina= |——____
of Declina- TION. Cor- |Thermo-| Cor-
tion Obs. rected. | meter. || rected. | meter.
Gottingen
Mean Time || DECLINA- | sae, een SUR ta mice Coot a
| Cor- |Thermo-| Cor- |Thermo-
| rected. | meter. | rected.
of Declina- TION.
tion Obs.
Observer’s
Initial
4 | Se. Diy. \|Mic. Div.
25 12-67) 546-1} 51-0 | 296.2
02-05 || 573-0 | 50-8 317-9
04-88} 540-1} 51-3 351-7
07-00} 535-0) 51-7 || 357-8
09-29) 535-6 2 | 358-8
10-83 | 534-8 ‘7 | 359-9
14-99 | 557-7 2 || 349.7
10-97 | 557-7 ‘6 || 359-9
07-15 | 584-3 ‘8 || 374-9
05-58 || 579-6 4 | 410-1
03-74 || 566-1 : 425-4
07:92 || 558-6 : 387-0
a.
23
° , Se. Div. as Mic. Diy. o -
25 17-94 || 555-5 | 55-6 362-4| 56-0 |
15-14 || 583-8 : 396-4| 57-5 |
07-10 | 562-0 . 413-2) 59-0 |}
08-77 || 554-9 : 413-9} 59.7 |
07-49 | 557-4 r 390-9} 60-1 |
05-94 | 558-0 : 372-8} 60-0 ||
+
Scooooos
05-11 | 543-8 : 340-5 | 57-3 |)
01-12) 535-1 : 354-3] 57-5 |}
02-69 | 534-3 : 360-3| 58-3 ||
06-64 || 530-4 : 362-4| 58-7 |
11-72|| 537-3 : 363-1] 59-3 |)
12-63 || 529-2 . 373-7| 59-8 |)
09-42 || 565-3 . 398-4| 60-3 |}
10-95 | 558-3 . 443-2] 61-5 |
09-06 || 573-1 . 397-0| 62-7
06-86 || 552-7 . 410-1| 63-2 |
06-48 | 564-9 . 401-7| 63-5 |
03-57 || 555-3 . 379-7| 63-3 |]
i
02.79 | 543-6 : 376-8 | 57-0 |
59-12] 535-7 . 376-9| 56-5 |
06-54 || 533-9 . 354-5| 56-5 |}
09-05 | 538-9 : 332-1] 57-0 |i
11-84 || 541-4 “2 328-8| 57-2 |
14-33 || 548-2 : 331-6 |
14-91 || 556-4 . 344-6
10-95 || 554-4 : 375-7
08-31 | 556-2 . 373-2
07-10 | 565-4 : 367-0
05-80 | 563-6 : 366-5
06-48 || 559-1 : 355-6
08-41 | 529-2} 53. 334-7
59-43 | 546-9) 53- 3323
02-48 || 524-1 . 350-5
08-52 || 531-8 . 351-4
10-56 || 529-5 . 354-8
09-49 || 549-3 . 362-9
10-77 || 547-8 . 381-2
06-51 || 559-4 : 395-6
02-97 || 578-4 . 411-9
04.44 || 574-8 . 399-1
05-36 || 587-2 . 400-6
05-94 || 557-7 374.7
oooococeoococeo
eoococoocoooceS
04-22 || 547-8 355:8
00-31 || 543-7 : 366-6
03-92) 530-1 . 368-9
06-48 || 524-1 | 53- 358-8
13-25 || 516-4 6 || 357-2
13-29 || 538-5 : 352-7
16-52 || 559-8 347-3
07-64 | 566-2 423-1
05-15 || 570-6 392.3
00-06 |) 570-4 . 407-9
03-35 || 569-9 ° 410-7
07-31 || 559-0 386-9
eoecococoowsoocoooso
01-18} 546-1 : 364-1
00-98 || 539-9 : 368-0
01-58 || 535-0 “ 360-5
06-29 | 534-8 . 359-7
09-62 || 539-7 = 347-5
12-31 | 544-0 : 358-9
13-52 || 545-7 , 361-7
11-44 | 553-0 : 384-8
05-79 || 562-1 : 389.7
05-09 | 563-4 : 387-2
05-70 | 565-7 . 377-2
06-12 || 557-7 )- 373-9
Seceeqoeeeee S
01-14] 544-6 378-5
57-93 || 527-0 55-6 || 393-0
03-13 || 513-9] 55-6 | 387-9
08-88 || 517-7 378.4
11-34] 534.9 376-1
09-22) 534-6 377-3
15-83 | 556-6 397-2
13-79| 533-1] 57-3 || 401-7
05-79 | 552-2| 57-9 || 405-6
03-75 | 553-2| 57-9 || 412-7
01-61] 563-4| 57-8 || 410.2
06-84 || 551-9 382-5| 57-3
eoeoococoeocsceo
02-79 | 548-4 : 381-9
59-36 | 547-4 : 386-5
03-34 | 539-3 : 376-8
04-68 | 538-1 | 52- 322-7
09-05 | 537-4 . 368-8
11-17 || 539-9 . 365-2
12-72) 549-3 . 361-8
11-41 | 552-0 : 380-7
07-45 || 558-7 : 384-1
06-50 || 565-3 . 378-7
05-52 || 563-5 . 376-7
06-26 | 556-8 | 59-0 | 363-8
eoecoeo ce cqooqod
00-85 | 546-6 380-7 | 55-5
00-62 || 527-6 : 385-0| 55-3
06-63 | 523-2 : 365:4| 55-3
11-62) 533-5 : 357-7) 55-2 |
13-52] 540-6 | 55- 352-0) 55-3
16-08 | 543-9} 55-2 |! 356-5! 55-5
mgnghin godgndndmghn s4dgnigmeadmm gaddmdnddden ddggnemeggnn |
ocoooococcoceoeco
ocooooco
DECLINATION. Magnet untouched, April 14°, 1846—May 1847.
BIFILAR. Observed 2™ after the Declination, k=0-:000135. BALANCE. Observed 3™ after the Declination, s=0:000
+ Extra Observations made.
DAILY OBSERVATIONS OF MAGNETOMETERS, May 28—Junze 8, 1846. 303
BIFILAR. BALANCE. % | Gottingen BIFILAR. BALANCE. 5 1
DECLINA- >. | Mean Time || Dectina- ae
TION. Cor- |Thermo-|| Cor- /Thermo-|| 2°2 | of Declina- TION. Cor- |Thermo-|| Cor- /Thermo-|| 3 °2
rected. | meter. || rected. | meter. || S'~ | tion Obs. rected. | meter. || rected.| meter. | 6~
m. 2 i Se. Div. 2 Mic. Div. © di bs) xn. > 4 Se. Div. 2 Mie. Div. P
0 || 25 01-76}| 549-0} 56-0 373-9 | 55-5 H 3 2 O| 25 12-56]) 550-1) 70.4 387-6| 71-5 H
0 || 24 57-81 || 543-9} 55-7 375-4 | 55-4 H 4 0 11-61 | 560-0) 72.9 374-0| 74-2 W
0 || 25 03-30] 535-6] 55-7 373-5 | 55-9 WwW 6 0 08-79 || 558-9) 75-4 385-9| 76-5 H
4 06-70 || 535-0| 56-0 372-5 | 56-5 W 7 O 02:08 || 563-1] 76-4 393-3 | 77-3 H
OF. 0 08-32 || 539-5 | 56-6 367-3 | 57-5 ‘WwW 8 0 06-63 || 558-5| 77-0 414-3| 77-5 H
eO 13-67 || 542-8 | 57-4 363-1 | 58-7 H 10 O 07-24 || 549-8| 77-0 410-4] 77-5 H
20 14-60 || 539-3 | 58-7 362-0 | 60-2 H
AO 11-74 || 560-0} 61-2 345-2] 62-6 isl 18 0 || 25 03-77 || 536-4} 72.3 408-7 | 71-0 W
6 0 08-29 || 566-8) 63-0 363-8] 64.2 ‘W 20 O 01-18 || 529-5] 71-3 428-4} 70-2 W
7 0 07-34 || 566-1} 63-6 367-7 | 64-6 ‘W 220) 01-98 || 527-0} 70-7 415-3| 70-0 | H
8 0 06-36 || 567-3 | 64-0 368-4 | 65-0 W 23 0 04-29 || 529-5| 70-7 407-3) 70-5 W
10 O || 25 06-48 || 560-6 | 64-3 358-2 | 65-2 WwW 4 0 0 06-98 || 530-3) 70-8 393-1/ 71-2 || H
1“ 11-14 || 540-8) 71-5 394-4] 72.5 H
18 0 ]| 24 57-37] 551-8) 59-9 329-5 | 59-3 H Zi) 12-01 || 549-9| 72-5 399-3 | 73-5 H
20 O|} 25 00-84) 548-6} 59-7 356-3 | 59-2 H 4 0 12-02 || 560-9| 74-7 417-6} 75-8 W
22 0 04-71 || 539-9 | 59-7 354-0 | 59-8 ‘W 6 0 12-23 || 562-6| 76-8 432-2| 77-7 H
23 O 10-13 || 539-7 | 59-8 347-5 | 60-3 H 7 O 07:00 | 569-4] 77-6 424.9| 78-4 H
0 0 13-96 || 546-3 | 60-3 341-2| 60-8 W 8 0 06-73 | 557-7 | 78-2 417-0| 78-7 H
19:0 16-92 || 557-4} 60-7 341-3 | 61-0 H 10 O 07-17 || 544-3} 78-2 409-8] 78-3 H
2 0 15-86 || 554-5} 61-1 349-3 | 62-0 W
4 0 12-55 || 559-7 | 62-7 367-2 | 63-5 W 18 0 || 25 00-30] 531-1] 72-2 430-3 | 70-4 WwW
6 0 10-56 || 583-7 | 64-2 385-7 | 65-0 W 20 O 03-88 || 534.2) 71-0 401-8) 69-3 W
7a 00-35 || 571-8 | 64-9 425-0 | 65-6 W 22 0 05-08 || 538-2] 70-3 381-6] 69-3 H
8 0 04-93 || 565-6 | 65-4 404-0 | 66-0 W 23 0 08-65 || 537-7| 70-3 380-3] 69-9 W
10 0 05:58 || 563-6] 65-5 376-6 | 66-0 W 9 0 0 11-17 || 530-5 | 70-5 378-1} 70-7 H
1 0 12-95 || 535.6] 71-7 380-7 | 71-7 || H
18 0 || 25 03-90) 530-2) 63-0 342-5 | 61-9 W 2 0 12-58 || 547-5| 72-0 385-5 | 72-8 H
20 0 02-42 || 533-7 | 62-4 349-4 | 61-3 ‘W 4 0 12-70 || 552-0| 74-1 386-6| 75-0 | W
22 0 06-70 || 532-6} 61-8 347-5 | 61-3 H 6 0 09-51 || 564-1] 76-2 387:0| 77-2 H
Zo. 0 07-58 || 533-6} 61-9 343-9 | 61-9 H 1 GAO 07-07 || 556-2| 76-8 397-8| 77-7 || H
0 0 10-81 |) 538-3 | 62-4 345-9 | 62-8 H 8 0 05-69 || 558-4] 77-2 406-1| 77-8 H
Mm OO 11-27 || 546-3 | 63-3 357-0 | 64-2 H 10 0 || 25 06-90 || 552-4] 77-3 413-5) 77-5 H
2 0 12-62 || 539-7 | 64-4 359-6 | 65-7 H
4 0 12-29 || 558-7 | 67-0 362-2| 68-2 H 18 0 || 24 59-09|| 542.2] 72-7 361-7| 71-4 W
6 0 09-33 || 550-6 | 69-5 379-0] 70-7 H 20 O|| 24 59-23 | 531-2) 71-8 406:7| 70-5 || W
7.0 06-06 || 568-2] 70-6 396-3 | 71-7 H 22 0 || 25 02-72} 541-3] 71-2 398-8 | 70-5 H
Hs 0 06-43 || 565-0) 71-4 398-4 | 72-3 H 23 0 06:04 || 541-1} 71-2 404-4) 70-8 W
/10 0 07-00 || 555-2 | 72-0 402-2) 73-5 H 6 0 0 09-89 || 545-0} 71-4 384.9 | 71-5 H
1 0 11-74 || 538-5] 71-8 || 391-4] 72-3 | H
\18 0 || 25 02-37 || 537-1| 67-4 220-5 | 66-5 H 2 0 11-64 || 544-0] 72-7 389-3 | 73-5 H
(20 0 00-53 || 525-4| 66-6 288-0) 65-7 H 4 0 11-88 || 550-2| 74-7 395-0| 75-5 ‘W
(22 0 07-22 |) 512-8 | 66-3 345-7| 66-0 W 6 0 10-67 || 568-5 | 76-2 416.8} 76-8 H
/23 0 10-60 || 523-9 | 66-4 349-7 | 66-7 H 7 #O 08-06 || 567-2} 76-7 433-1 | 77-2 H
/ 0 0 14-40 || 538-3 | 67-0 350-9 | 67-8 W 8 0 08-11 570-8] 77-0 426-7| 77-3 H
a) ni .0 13-54 || 544-3 | 67-8 359-9 | 68-8 H 10 0O 04-21 || 550-4} 76-8 413-8 | 77-3 H
ei 2 0 14-98 || 550-1] 69-0 371-2| 70-1 ‘W
es 4 0 11-88 || 550-4} 71-2 367-6 | 72-5 H 7 18 20 || 25 01-52|| 539-4) 66-7 403-5 | 65-3 W
6 0 08-61 || 563-0 | 72-8 371-6 | 73-9 W 20 O 00-40 || 534-4) 66-0 || 411-8] 64-8 W
“a0 06-98 || 565-6 | 73-3 387-5 | 74-5 WwW 2280 02-62 || 531-0} 65-5 411-9| 64-7 H
18 ot 01-09 || 549-4} 73-9 440-5 | 74-8 W 7a) 2 (0) 04:14 || 533-0} 65-3 406-6} 64:5 | W
7110 0 01-61 |) 549-4] 74-2 387-2| 74-7 WwW 8 0 0 07-20 || 536-9| 65-2 402-7| 64-5 | H
, 10 09-74 545-2] 65-0 | 398.9] 64-7 | H
78 0 | 25 01-65 || 534-4| 69-4 334-4 | 68-2 WwW 20 18-21 || 544-9} 65-0 400-5) 65-0 H
. 20 0 00-92 || 517-4| 68-7 389-7 | 67-5 Ww 4 0 12-22}! 547-3] 65-4 411-7| 65-4 W
122 0 06-76 || 533-7 | 68-0 390-4} 67-5 H 6 0] 08-08 | 552-1} 65-8 414-0! 65-7 H
Pee3i5 0 10:47 || 533-3} 68-1 382-8 | 68-2 H 7 #0 06-63 || 554-7| 66-0 414-9 66-0 H
40 0 12-18 || 535-5) 68-5 369-2 | 69-0 H 8 0} 05-42 || 558-7 | 65-9 412-6, 66-0 H
} 1 0 13-09 || 543-41 69.4 371-7! 70-3 H 10 O| 05-55 || 556-8 | 65-7 416-1 65-5 H
il, DECLINATION, Magnet untouched, April 144, 1846—May 1847.
_ pIFILAR. Observed 2™ after the Declination, s=0:000135. BALANCE. Observed 3™ after the Declination, s=0-:000010.
—|
+ Extra Observations made.
304 DaILy OBSERVATIONS OF MAGNETOMETERS, JUNE 8—18, 1846.
| | 1
Gottingen BIFILAR. BALANCE. oF Gottingen BIFILAR. BALANCE. %
Mean Time || DECLINA- Z.= | Mean Time |} Deciina- Pa
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2-2 | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-| 2°5
tion Obs. rected. | meter. || rected. | meter. 5 1 tion Obs. rected. | meter. || rected. | meter. 5
Gly Mn Gals om ae Se. Div. © Mic. Div. ° CS We iets = ‘ Se. Div. ° Mic. Div. =
818 0O | 25 00-20} 531-1} 63-4 312-2| 62-8 Wi13 2 O | 25 20-90 || 531-9| 66-0 386-8 | 67-0 Hg
20 0 || 24 58-67 || 530-7| 63-0 347-7 | 62-6 WwW 4 0 13-86 || 566-4| 68-3 394-3 | 69-4 BI
22 0 || 25 05-72}| 530-1} 63-0 371-5 | 63-0 H 6.0 09-53 || 562-3) 70-0 398-2) 71-2 Hf
23 «OO 04-41 || 534-0] 63-4 393-1] 63-7 W i 0) 07-37 || 570-6 | 70-5 401-8} 71-5 H
s° O88 06-46 || 537-6] 63-8 || 400-7| 64-5 || H 8 0 06.21 || 565-8| 70-8 || 414-2} 71-6 | H
12 11-01 || 545-1} 64-5 415-4} 65:3 H 10 0O || 25 06-23 || 566-6| 70-8 400-2) 71-5 Hj
2) 0 13-27 || 548-4} 65-3 425-3 | 66-2 H | ;
4 0 | 25 12-29]| 562-6) 66-6 431-9| 67-5 W {14 18 0 || 24 57-91 || 547-3) 69-6 334-5 | 68-3 WI
6 Ot] 24 59-66 || 604-0) 67-8 507-1| 68-7 H 20 0O || 24 58-77 || 540-0| 68-5 406-8 | 67-3. | W
7 O || 25 07-10}) 571-7} 68-3 496-8 | 69.2 H 22 O || 25 08-45 || 521-0] 67-8 412-0} 67-2 He
8 0 07-76 || 564-0] 68-8 460-6 | 69-5 H 23° 0 10-09 || 519-0| 67-8 408-1} 67-6 | W
10 O 05-32 || 547-2) 68-9 412.3) 69-3 HO} Ss" 08 0 03-84 || 527-8 | 68-0 412-3| 68-0 || Hy
V0 10-70 | 532-7| 68-3 || 417-3| 69-0 || He
18 O || 25 01-.49]| 538-8] 65-8 351-9| 65-5 Ww 2 0 12-53 || 546-0} 69-0 409-3| 69-7 | H
290 0 || 24 58-87]| 525-3) 65-4 407-9| 65:0 || W 4 0 11-75 || 559-0| 70-7 || 414-4] 71-6 | WwW
22 0 || 25 01-29) 521-2) 65-2 418-1] 65-2 H 6 0 06-46 || 595-0 | 72-6 452-3 | 73-4 He
m5) (0) 05-22 || 520-0} 65-3 420-9 | 65-6 W 7 +O | 25 04-98 |) 587-5 | 73-3 468-8 | 74-0 H
10 0 O 08-90 || 523-0] 65-6 411-9} 65-9 H 8 0 || 24 58-45 || 573-2) 73-7 466-2} 74-3 WwW
0) 11-07 || 543-1 | 66-0 402-6} 66-5 H 10 Ot 24 53-65 || 569-5 | 73-8 412-4) 74-0 Hg
20 12-62 || 553-8] 66-4 405-0} 67-2 H
4 0 10-43 || 575-4| 67-6 440-6} 68-2 Ww 18 0O || 25 04-15 || 542-1 | 69-0 373-0| 67-8 WwW
6 0 09-73 || 560-8] 68-0 460-2) 68-5 H 20 O 07-40 || 526-1) 68-3 393-7 | 67-2 W
vf 09-53 || 563-0] 68-0 || 441-5| 68-5 H 22 0 03-81 || 531-6 | 67-8 399-3 | 67-2 H
8 0 08-48 || 557-3 | 67-8 423-4) 68-2 H 23 (0 02-79 || 527-6 | 67-8 396-7 | 67-8 WwW
10 0O 07-47 || 553-7) 67-3 412-6| 67-3 H Lié 00 08-85 || 515-9 | 68-0 410-0| 68-5 Ho
1 0 07-87 || 526-9} 68-8 418-1| 69-7 pei
18 0 || 25 01-72|| 538-9} 63-7 414-2} 62-8 W 20 08-55 || 540-8 | 70-0 425-2| 71-2 Ys
20 0 || 24 59-46 }} 532-3) 63-2 430-8 | 62-4 ‘W 4 0 12-63 || 572-0 | 72-4 461-5 | 73-7 WwW
22 0] 25 00-44 }) 523-2} 62-8 424-8 | 62-4 H 6 0 11-27 || 564-4 | 74-3 410-0 | 75-2 pei
2310) 03-72 || 519-2} 62-8 416-9| 62-7 WwW 720 09-02 || 572-5 | 74:8 407-0) 75-5 H
11 0 0 08-12 || 526-9} 62-9 410-9} 63-0 B 8 0 07-45 || 561-8 | 75-3 416-2} 75-8 el
0 10-70 || 535-8] 63-2 || 407-0} 63-5 B 10> 0 07-54 || 552-3 | 75-6 405-6 | 76-2 ah
7 (0) 12-72 || 544-7 | 63-7 403-7 | 64-4 H “
4 0 11-84 || 553-3} 65-0 403-0 | 65-8 W 18 0 || 25 06-21] 545.9| 70-5 404-6) 69-5 Ww
6 0 08-86 || 558-3] 66-1 410-9 | 66-6 H 20° 0 01-95 |) 537-8} 69-8 413-8) 68-8 Wo
GW 07-07 || 561-0} 66-1 410-2} 66-7 H 22 0 01-24 |) 518-1} 68-7 410-5 | 68-7 det
8 0 06-39 || 558-7} 66-1 410-2} 66-7 H 23 (0 10-87 || 529-1] 69-2 401-7} 69-3 w
10 O 05-85 || 555-1} 65-7 405-4] 66-0 Beige (Oo 11-84 || 542-6 | 69-7 380-4| 70-2 H
ag 13-90 || 538-2| 70-5 394-2) 71-5 H
18 0 || 25 00-53 || 546-1] 62-6 414-1} 61-9 W 2°70 12-90 || 551-9} 71-6 386-6| 72-8 H
20 0 || 25 00-04 || 538-0} 62-0 417-7| 61-4 WwW 4 0 14-94|| 557-6] 74-2 395-3 | 75-3 fl
22 0 || 24 59-88 || 545-6] 62-1 411-3} 62-1 H 6 0 08-32 || 559-7| 76-6 413-7| 77-7 H
23 0 || 25 03-41 || 529-1| 62-3 402-7| 62-8 W 70 06-50 | 563-6 | 77-5 414-6} 78-3 pi
n2e 100 08-77 || 531-7 | 62-8 392-7 | 63-5 H 8 0 07-34 || 569-5} 78-2 418-2} 78-8 EE
1 0 12-72 || 532-3} 63-6 390-8} 64-2 B 10 O 06-50 || 562-8| 78-6 419-1} 79-1 Vi)
2 0 12-11] 545-0} 64-2 384-9 | 65-2 Jel
4 0 13-12 || 563-5] 65-9 398-0} 66-9 W 18 0 || 25 02-19]| 546-0} 73-7 433-3| 72:8 || W
6 0 08-28 || 567-2} 67-2 415-2} 68-0 H 20° 0 01-22} 535-3 | 72-9 446-2} 72:0 || W
1,0 08-46 || 565-1} 67-4 || 411-2} 68-2 H 22 0 03-74 || 533-4] 72-4 426-6} 72-0 H
8 0 05-85 || 564-9 | 67-6 413-2] 68-2 Ww Dome) 05-32 || 532-8 | 72-4 425-0| 72-4 || W
10 0O 06-51 || 557-6} 67-5 402-2] 68-0 H|18 0 0 04-75 || 543-6 | 72-7 414-4| 73-3 H
Wa). 1} 11-84 || 535-4] 73-5 411-4) 74-3 H
18 0O || 25 00-03 || 549-9} 64-1 415-1] 63-8 WwW 2500) 11-46 |) 547-5] 74-4 || 406-3} 75-5 H
20 O || 24 59-48} 543-3) 64-0 416-3} 63-6 WwW 4 0 09-15 || 539-4] 76-2 416-9) 77-1 WwW
22 0 || 24 59-43 || 539-6} 63-8 390-4] 63-8 | W | 6 0} 06-50 || 559-1] 76-5 404-8| 77-2 || H
23 O || 25 11-44|| 544-9| 64-0 378-0 | 64-2 | H { he) 07-17 || 555-1] 76-7 402-8} 77-5 V
30 00 08-48 || 563-8} 64-5 361-5| 65-0 || W j 8 0} 05-32 || 566-1] 77-0 402-:0| 77-5 | H
1 0 10-06 || 568-1! 65-7 370-9! 66-0 || H | 10 0 06-97" 551-8! 77-0 394-3! 77-2 I H
DECLINATION. Magnet untouched, April 144, 1846—May 1847,
BIFILAR. Observed 2™ after the Declination, k=0:000135. BaLANCE. Observed 3™ after the Declination, k=0-000010.
Tt Extra Observations made.
DAILY OBSERVATIONS OF MAGNETOMETERS, JUNE
18—29, 1846.
: BIFILAR. BALANCE. % 4 Gottingen BIFILAR. BALANCE.
> | Me DECLINA- >=} Mean Time || Decirna-
BI TION. Cor- |Thermo-||} Cor- |Thermo-|| 3°¢ f of Declina- TION. Cor- |Thermo-]} Cor- /Thermo-
|. ti rected. | meter. || rected. | meter. 5 if tion Obs. rected. | meter. || rected. | meter.
ids mas || ie! 2 Se. Diy. © Mic. Div.| ° CONN TET | Cs Pes Se. Div. ° Mic. Div.
1 3t 25 12-22|| 533-0) 73-2 386-1] 72-3 ‘W f24 2 O | 25 10-77|| 553-4) 58-0 382-5 | 58-2
7 L 0 . 08-14 || 544-3) 72-5 351-9| 71-7 W | 4 0 10-03 |} 565-9} 59-0 410-5 | 59-5
F | 0 04-91 || 533-0} 72-1 395-2) 71-7 H 6 0 03-09 || 565-1 | 60-0 425-0] 60-6
0 05-09 || 541-6| 72-1 394-4] 72-2 || WwW io 06-70 || 566-3 | 60-5 | 417-9} 61-0
719 0 11-07 || 540-7 | 72-6 399-7 | 73-2 H ce () 07-69 || 571-7) 60-9 404-5] 61-5
Gi tO 11-24 || 547-8] 73-2 394-1] 74-0 | H 10 0O 06-24 || 557-1] 61-1 391-8] 61-4
| ' 2 0 07-49 || 550-2} 74.3 SOBEL 7a e4e ih dal
i 4 0 08-23 || 548-4| 76-2 403-1| 77-0 | W 18 0 | 25 00-99} 547-0] 57-2 | 395-3) 56-5
i ™ 6 0 07-67 || 559-8 | 77-3 390-1| 77-8 H 20 O 01-41 || 543-0) 56-8 396-0! 56-3
| m7) 0 06-36 || 558-6| 77-6 391-6) 78-0 WwW 22 0 03-81 || 528-6] 56-7 377-0 | 56-7
l ™) Ss 0 07-08 || 557-2] 77-6 393-2) 78-0 WwW 23 0 05-25 || 536-8] 57-0 376-6 | 57-7
710: 0 06-59 || 550-4) 77-4 397:0| 77-3 Waites: LOO 07-54 || 548-2) 57-8 379-5 | 58-8
i 40 11-21) 551-1| 58-7 || 380-1] 59-5
18 O || 25 02-87 || 539-6) 71-2 416-0} 69-3 WwW 2.3 12-35 || 560-2) 59-3 383-0 | 60-3
i200 00-30 || 532-4) 69-6 403-3 | 67-5 W 4 0 10-20 || 552-8] 60-1 397-0| 61-0
. 22a 03-30 || 530-0) 68-3 390-0 | 66-4 H 6 0 07-76 || 568-0) 60-6 399-8| 61-7
| CRN 06-70 || 529-4) 67-9 389-2) 66-3 ‘WwW “ZO 05-06 || 580-6| 60-7 397-4) 61-5
. -20 0 O 11-91 |) 526-5} 67-7 384-8 | 66-3 H 8 0 07-52 || 562-2) 60-7 395-9 | 61-2
| | eg) 15-01 |) 541-2} 67-4 381-8} 66:3 H 10 0 06-26 || 556-8] 60-4 391-2} 60-5
| a 2 0 17-67 || 546.4] 67-4 379-6 | 66-6 H
ie 4 0 09-22 || 553-7| 67-6 379-0| 67-1 ‘W 18 0O || 25 01-31 | 545-7) 56-0 367-7 | 55-0
1} 2 6 0 04-98 |) 551-1] 67-7 390-5| 67-2 H 20 O || 25 00-22) 542-2) 55-2 379-5 | 54-7
ie To) 04-98 || 553-1] 67-7 390-1 | 67-0 H 22 O | 24 59-14) 536-6} 55-0 379-7 | 55-2
| | 8 0 05-08 || 555-4] 67-6 387-6} 66-9 H 23 O || 25 02-46]| 533-6] 55-5 375-5 | 56-0
7} 10 0 07-20 || 550-6) 67-3 393-1) 66-7 EH 26570) 0 07-17 || 533-2} 56-0 362-7 | 56-8
: - 1 0 10-00 || 541-3} 56-9 354-4| 57-8
“18 O || 25 02-28 || 548-8] 65-7 392-:0| 65-3 ‘WwW 20 12-45 || 548-4] 57-7 357-6 | 58-5
b 20 0 08-95 || 535-2) 65-4 399-5| 65-0 ‘W 4 0 11-99 | 554-8) 58-3 364-6 | 59-2
; | 22 0 11-00 || 536-3) 65-4 381-5 | 65-5 H 6 0 09-42 || 561-4| 58-7 370-4 | 59-5
is '23 0 12-49 || 539-8| 65-7 378-3 | 66-1 WwW iO) 08-36 || 569-7| 58-8 366-6 | 59-5
|22 0 0 14-10 || 546-6| 66-3 366-0} 67-0 H 8 0 07-05 || 568-9} 58-8 376-5 | 59-5
ie KO: 17-36 || 544-7) 67-2 364:4| 68-0 H 10 O || 25 06-43 || 564-5} 59.2 376-6 | 59-2
m2 0 14-70 || 555-3| 68-0 372-8| 69-2 H
4 0 11-19 || 562-9) 70-0 388-9| 71-3 WwW 18 O | 24 57-05| 538-7] 57-2 368-5 | 57-2
or 30 08-85 || 559-2) 71-8 410-2| 73-0 H 20 O || 24 59-88 || 552-4| 57-6 365-0 | 57-8
7 0 09-00 || 566-7| 72-4 404-1) 73-4 WwW 22 O | 25 01-46]| 537-3) 58-0 372-9 | 58-7
38). 0 07-74 || 566-2| 72-6 401-1) 73-5 iE 23 0 04-17 || 534-4| 58-6 373-7 | 59-3
10 O || 25 03-99} 559-1) 72-5 410-8| 73-0 B {27 0 O 07-10 || 535-4{ 59-1 375-5 | 60-0
1 0O 03-68 || 541-0) 59-7 371-8 | 61-2
18 0 || 24 58-45 || 542-9| 70-0 375-0 | 69-7 WwW 2 0 10-83 || 543-9} 60-3 355-9] 61-5
20 O || 25 02-20) 535-2} 69-3 394-1} 69-0 WwW 4 0 11-64 || 556-7| 62-0 364-3 | 63-0
22 0 04-93 || 532-6] 68-9 384-7 | 68-7 WwW 6 0 07-79 || 573-4| 63-0 388-6 | 64-0
23 0 08-21 || 538-1| 68-7 385-6| 68-5 WwW 7 0 06-64 || 567-8| 63-3 411-4| 64.2
0! 0 08-46 || 551-2| 68-7 379-0| 68-5 H 8 0 07-71 || 580-3) 63-5 413-8 | 64-3
1? 0 10-56 || 547-7| 68-6 386-8| 68-6 H 10 O 04-17 || 556-9| 63-4 414-5] 64-0
Zz 0 09-56 || 564-9} 68-6 384-4) 68-7 | H
4 0 09-96 || 555-4) 68-7 426:0| 68-8 | W | 28 18 0 || 25 03-94] 539-2) 61-4 344-3 | 61-0
Go! 0 07-91 || 564-5} 68-1 432-8) 67-7 H 20 O | 24 58-58 |} 545-1) 61-4 378-2] 61-5
a0 06-29 || 566-7} 67-7 434-7 | 66-9 H 22 0 | 25 03-02]} 524-4] 61-7 391-4] 61-8
8 O || 25 08-31 || 564-3} 67-0 427-8 | 66-0 H 23 0 03-23 || 531-5] 61-8 387-0} 62-2
0 O | 24 59-74] 554-5} 66-5 417-3} 64-2 H {29 0 0 06-03 || 537-1] 62-3 376-4] 62-8
1 0 09-08 || 533-5 | 62-6 374-1] 63-2
18 O || 25 00-72 || 540-5| 59-6 382-5 | 57-7 W 2 0 12-23 || 554-3) 63-0 378-2 | 63-8
20 0 02-06 || 539-5 | 58-3 377-6 | 56-6 W 4 0 10-09 || 560-9} 64-2 384-1 | 64-9
m2) 0 04-71 || 536-4| 57-5 379-9| 56-2 H 6 0 09-69 || 574-4] 64-9 384-6 | 65-4
b. 2a 07-22 || 535-0] 57-3 374-9 | 56-5 ‘WwW 7 O 07-94 || 578-7} 65-0 394-2) 65-4
24 0 0 09-84 || 545-6| 57-3 372-0} 56-7 H 8 0 07-76 || 576-5} 64-9 409-5 | 65-1
met) 0 12-51 || 550-8! 57-4 375-41 57-5 || 10 O,; 01-04! 556-6! 64-4 397-3' 64-3
DECLINATION. Magnet untouched, April 14¢, 1846—May 1847.
if BIFILAR. Observed 2™ after the Declination, k=0:000135,
MAG. AND Mer. ops. 1846.
} Extra Observations made.
BALANCE.
305
Observer’s
Initial.
Seeehisetististt phe stomerses Meese se Pees 4aaqng |
Observed 3™ after the Declination, s=0:000010. ~
306 DaILy OBSERVATIONS OF MAGNETOMETERS, JUNE 29—JuLy 9, 1846.
Gottingen BIFILAR. BALANCE. % _ | Gottingen ’ BIFILAR. BALANCE.
Mean Time || Drcuina- || ———7_——— ||| 2. 8] Mean Time || Decrrna- |——]7—___
of Declina- TION. | Cor- |Thermo-|| Cor- |Thermo-|| 2 ‘gj of Declina- TION, Cor- |Thermo-| Cor- |Thermo-)
tion Obs. rected. | meter. || rected.| meter. || 5" tion Obs. rected. | meter. | rected. | meter. |}
(eT ete 1
Gh a cis eo u Se. Div. 2 Mice. Div. e day hs) orn: ° 4 Se. Div. ° || Mie. Div. 2 |
29 18 0O | 24 57-26) 551-0} 61-7 || 338-2) 61-0 H 4 2 0] 25 15-79|| 540-6| 64-1 | 444-6} 65-3 ]}
20 O || 25 01-72) 543-5} 61-2 || 369-4] 60-8 H 4.0 09-32 || 566-2} 65-4 || 405-5) 66-9 |
22 0 02-33 || 527-9} 61-1 383-4| 61-0 WwW 6 0 06-83 || 564-9} 66-8 || 362-4) 68-5 !
23 0 08-01 || 525-0} 61-2 || 373-8} 61-2 H 1 eaO 08-08 || 564-1 | 67-4 364-6 | 69-1 |
30 0 0 10-58 || 534-2} 61-2 | 369-1| 61-4 WwW 8 0 07-78 || 567-5 | 68-2 || 369-6) 69-8 |
1% 0 12-36 |) 547-1} 61-5 || 371-4} 62-0 H 10 0 06-68 || 560-6} 68-8 || 369-3) 69-7 |
2 0 14-94 || 552-2} 61-9 || 375-1] 62-3 WwW
4 0 12-26 || 561-9} 62-5 || 375-3] 62-8 WwW 5 18 0 || 25 00-82|| 540-0} 66-4 325-7 | 65-2 |
6 0 09-62} 560-6| 62-4 || 406-1} 62-6 WwW 20 0 00-91 || 538-4| 65-7 379-2 | 64-2 |
a 08-23 || 569-5 | 62-2 || 411-8} 62-5 WwW 22°10 04-51 || 530-6| 64-9 || 379-1 | 63-5
8 0 05-79 || 573-8 | 62-1 416-8| 62-3 WwW 23 0 00-96 || 525-0} 64-5 356-8 | 63-2 |
1070 07-57 || 559-2 | 61-6 400-6| 61-5 W 6. 0<0F 19-68 || 497-2| 64-1 397-6 | 62-9 |
EKG) 12.22] 554-7} 63-8 371-5 | 62-7 |
18 0O || 25 07-44 |) 559-5] 58-8 357-8 | 58-2 re 2 0 16-59 || 560-1| 63-6 385-6 | 62-6 |
20 0 | 24 58-32) 537-3) 58-7 387-0| 58-2 H | Be (4, 08-01 || 553-8 | 63-2 397-6 | 62-7 |
22 0 || 25 01-65 || 530-3] 58-6 373°7| 58-6 WwW 6 0 08-34 || 564-1} 62-9 || 472-0) 62.2 |
23 0 07-15 || 534-5 | 58-8 377-3 | 59-2 H 7 0 02-15 || 566-6 | 62-7 || 465-8| 61-9 i
LO Ko) 09:77 || 537-0 | 59-2 370-8 | 59-6 Ww 8 0 05-35 || 568-9] 62-4 | 442-3) 61-6 |
150 11-69 || 542-4] 59-7 350-7 | 60-5 H 10 Of] 25 01-29] 558-2} 61-8 404-8 | 60-4
2 0 12-31 || 545-0] 60:0 || ------ Series at || SAVE y
4 0 10-23 || 566-6 | 60-5 || «+--+ | seeeee H 18 0 || 24 59-81 || 533-6| 58-4 342-3 | 56-7 |
6 0 08-50 || 578-3} 61-0 || e+.) | ceeeee WwW 20 0 || 25 01-05 || 539-2] 57-8 361-5 | 56-7 | E
Cheats 07-31 || 558-6} 61-1 |] ceeeee | cee eee WwW 22 0 03-79 || 536-7 | 57-7 383-5 | 57-3 |
8 0 0821 Lil] S91 61-30 laaeecest |) phone Ww B30 07-07) 529-7| 57-7 | 386-8) 57-7 |
OM 0 06-44 || 558-2} G1-4 |] e+eeee | eens WwW 7 0540 11-05 || 536-3 | 57-9 378-4 | 58-3 |
1 0 12-89 || 544-8] 58-2 || 374-2| 59-0 |]
18 0 | 24 54.21 |) 546-7) 60-8 || ------ | «++. H 2 0 15-25 || 559-4] 58-7 383-5 | 59-7 W
20 0 | 24 52.23)|) 534-7} 60-8 || «-.+-- | eevee H AO) 07-38 || 569-0 | 59-8 || 429-4] 61-5 |)
22 0 || 25 07-98 || 524-5| 61-2 |] .----. | nee. Ww 6 0 08-12 || 566-3| 61-1 || 407-8| 62-7 |W
23 (0 11-12!) 546-3 | 61-6 || «----6 | «eee H fe) 07-29 || 568-1 | 61:5 393-6 | 62-9 i V
2 0» <0 14-87 || 535-7 | 62-0 || ----0. | seeeee WwW 8 0] 06-34 || 570-6} 61-9 392-9 | 63-2 3
1570 17-42 || 533-6 | 62-6 || «cesses | weeeee H 10 0 07-34 || 549-9| 62-0 388-3 | 62-6 ;
2 0 W714 4c GH ROG | canbe lenis es WwW
410 16-15 || 560-2 | 64-7 || «-.-0 | eeeeee H 18 0 || 25 08-73 || 537-7 | 59-4 286-6 | 58-7
6 O 10-81 || 578-4} 66-0 || ses. | seeeee W 20 0 || 24 58-52]! 536-6} 59-0 366-7 | 58-5 |)
7 O 10-43 || 576-6] 66-5 || «eeeee | eeeeee WwW 22 0 || 25 02-15] 527-6] 58-9 395-5 | 58-9
8 0 09-26 || 570-3 | 66-6 || «+--+. | -eeee- W 23° 0 07-04 || 532-1] 58-9 386-2] 59-0 || W
10 0O 08-70 || 559-2} 66-6 || -.-e0. | eeeees WwW Ss 70V10 09-13 || 538-6 | 59-0 370-9 | 59-5 L Y
1 0 12-06 || 531-8} 59-2 373-1 | 59-7 |i
18 0O || 25 03-74 |) 549-2) 64-4 312-5] 64:5 || H 2+ 0 11-28 | 545-8] 59-3 353-6 | 59-7 |
20 0 11-86 || 540-1; 64-2 | 340-5] 64-2 H 4 0 09-08 || 557-0 | 59-3 379-5 | 59-7
22 0 11-55 || 528-1 | 64-0 364-9) 64-3 WwW 6 0 06-66 | 566-2} 59-3 385-3 | 59-5 || |
23 0 11-44 || 532-1 | 64-1 366-5 | 64-8 WwW 770 06-59 || 562-6 | 59-3 387-9 | 59-3 Ww
on Om Or 11-30 || 527-2) 64-3 366-2| 65-0 W 8 0 02-28 | 560-6| 59-1 403-8 | 59-0 i i
120 12-18 || 539-1 | 64-5 384-7 | 65-3 H 10 0 05-49 | 559-6 | 58-8 394-2] 58-5 ' y
2 0 13-94 || 544-3] 64-7 | 404.2| 65-4 | W Es
4/0 08-65 || 555-9} 65-0 477-4| 65-8 || H 18 0 || 25 01-96} 547-3 | 57-0 373-4| 56-2 || H
6 0 09-89 || 567-8 | 65-4 449-5| 66-0 WwW 20 0O || 25 03-57 || 532-8 | 56-6 389-7 | 56-0 | H
0) 08-43 || 567-7| 65-4 || 443-4] 65.9 || W 22 0 || 24 59-70]) 528-0} 56-4 || 391-6} 56-1 W
8 0} 08-21 || 567:9| 65-3 426-2| 65-7 WwW 23 0 || 25 04-73 || 523-9] 56-4 392-0| 56-2
10 O 07-47 || 558-7 | 65-0 || 416-0} 65-2 WwW 9 10-0 08-29 || 526-1] 56-4 373-5 | 56-3 —
1 O 11-48 || 535-9 | 56.4 374-3 | 56-4
18 0 | 25 02-26 || 515-4! 63-2 207-8 | 62-5 H 2. 0) ]| 12-45 || 545.9 | 56-4 378-0} 56-5
20 0 01-90) 536-8} 62-8 300-1) 62-5 del 4 0 12-35 || 559-3 | 56-6 390-8 | 56-9 |
22 0 05-52 || 526-3 | 62-8 356-2} 63-1 W ay) 08-50 |} 569-0} 56-9 | 402-6} 57-4 |
23 ~O 10-80 | 518-4) 63-0 364-3] 63-7 H 10 06-64 || 561-4] 57-1 405-8 | 57-7 —
4 0 0; 15-02 |) 543-1 | 63-3 355-0} 64-1 / WwW 8 0} 06-50 || 561-2] 57-3 394.9 | 57-8
Leon 15-41 || 537-9 ' 63-7 || 403-1' 645 | H J. 10 O 02-17 '' 556-7 57-5 || 393-5) 58-0
DECLINATION. Magnet untouched, April 144, 1846—May 1847.
BIFILAR. Observed 2™ after the Declination, s=0:000135. BALANCE. Observed 3™ after the Declination, s=0-000010.
July 14—24, Observations of defiection of the balance needle were made for the purpose of determining the value (h) of au
meter division, in parts of the whole vertical force. The observations after July 24 are reduced to be comparable with those bi
that date. See Introduction, p. xliii.
+ Extra Observations made.
DAILY OBSERVATIONS OF MAGNETOMETERS, JuLY 9—20, 1846. 307
BIFILAR. BALANCE. Gottingen BIFILar. BALANCE,
Mean Time |} DECLINA-
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter.
=
ct
8 eB | ' ‘
DECLINA-
TION. Cor- |Thermo-|| Cor- |Thermo-
rected. | meter. || rected. | meter.
Observer’s
Initial.
Observer’s
Initial.
=i
° , Se. Div. © Mic. Diy. e
25 11-27 || 550-1} 66-2 381-1] 67-3
08-16 || 565-4} 67-2 416-4| 68-4
08:88 || 557-8} 68-0 432-3] 69-3
08-72 || 565-0] 68-2 413-8] 69-3
04:98 || 560-7} 68-3 409-2} 69-1
05-23 || 558-0 392-3
Sisk |. Sc. Diy. | ° Mic. Div. 2
25 00-47 || 546-5 | 56-7 || 370-7} 56-6
02-59 || 537-8| 56-8 || 375-4] 57-2
02-97 || 531-5) 57-3 || 377-0) 58-4
04-82 || 527-0} 57-8 |} 373-3) 59-2
09-20 || 531-5 : 363-4 | 60-5
11-07 || 537-3 . 341-0 | 61-9
12-45 || 544-0 . 335-4
12-04 |) 560-9 . 365-3
09-62 || 577-1 . 386-3
08-85 || 574-1 . 387-6
08-05 || 568-9 . 385-5
06:14 || 559-7 : 373-4
-sgteas Sar
oe 8) Sao."
01-78 | 540-0 362-0
58-43 |) 541-2 : 382-8
00.06 || 531-3 ; 392-8
03-97 || 530-8 | 65- 375-7
07-94 || 521-7 : 363-2
12-55 || 529-2 : 360-0
12-69 || 547-3] 66- 340-9
11-30 || 568-2 : 381-4
06-16 |} 558-8) 66- 394-9
05-29 || 564-0 : 396-0
04-91 || 564-4 : 388-8
07-04 || 553-5
—
jor)
oe SMNAwDD
58-55 || 547-7 : 400-5
54-92 || 537-3 . 392-9
539-4 . 358-7
543-9 . 329-0
554-4 : 323-6
541-2 : 359-9
508-1 . 388-5
577-7 : 568-2
579-8 : 533-0
570-5 . 511-2
570-7 . 533-0
558-9 . 381-5
0 SONAR WH OHNE
ooo co fo oo ee So
01-75 || 548-3
04-17 || 539-4
04-55 || 529-6
09-96 || 535-0
08-85 || 540-1
09-02 || 546-9
09-82 || 547-9
09-35 || 546-9
08-08 || 578-8
03-23 || 580-9
06-12|| 559-7
06-77 || 554-1
+
mn gdeddhighgmdmn dadgug |
cooeccooceccoso o
—_
=
a
~T
542-8 : 353-2
044-0 . 374-5
538-0 . 386-9
536-7 . 385-5
526-2 . 375:8
536-7 : 377-1
541-6 : 384-3
565-4 : 409-1
596-5 ‘6 || 524-7
592-9 | 67- 547-4
570-4 : 499-6
542-5 . 427-3
Sree Slr Orie Serene
01-68 || 545-9
56:85 || 541:8
06-46 || 532-0 :
08-52 || 525-5 : 404-0
10-50 || 547-4 : 388-4
14-17 || 551-3 : 378-0
13-16 || 552-2 372-0
10-41 || 565-0 . 406-7
08-46 || 567-6 “2 481-3
05-92 || 560-1) 60- 485-4
07-20 || 564-1 . 441-7
07-31 || 568-4 || 394-8
—
co
541-0} 64. 364-2
532-8 . 374-5
522-2 : 395-2
518-1} 63- 390-8
532-5 | 64: 389-6
536-8 : 382-3
540-3 : 383-5
566-2 : 354-9
561-4 69- 377-4
563-0 . 388-1
574-1 . 387-6
| 599-6 . 399-7
¢¢dgngnenenm seeemenern
So SO oS So So So o'S
02-93 | 539-7 362-4
03-43 | 524-7] 59-2 || 389-1
02-45 | 523-4] 59-5 || 373-6
06-73 | 529-1] 59-8 || 371-5
09-05 || 547-8} 60-4 |) 365-4
08-77 | 952-7 | 361-5
09.06 | 554-6) 61.6 | 370-2
04-62 | 570-9| 62-8 | 392.2
06-86 | 566-0] 63-8 | 386.2
06-79 | 565-4| 64-2 |) 369-2
25 06-50 | 567-5] 64-4 | 369-1
24 59-83 | 561-4! 64.1 || 386-1!
=
©
546-8 : 317-4
549-1 . 337-1
538-0 : 389-6
526-3 . 397-7
| 541-4 . 374-4
551-5! 65- 372-5! 66-5
mdhighm ddddmgmdndh deggmgmgndmn gdgdededngnn ddadeamendmn |
Sos So SS) Oo OC oO Ge.
DECLINATION. Magnet untouched, April 144, 1846—May 1847.
Observed 2™ after the Declination, s=0°000135. BALANCE. Observed 3™ after the Declination, s=0:000010.
+ Extra Observations made.
308 DAILY OBSERVATIONS OF MAGNETOMETERS, JULY 20—30, 1846.
Gottingen BIFILAR. BALANCE, e 4] Gottingen BIFILAR. BALANCE.
Mean Time || DEcLINA- 7-5 | Mean Time || Drcrina- a
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2's | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter. Si tion Obs. rected. | meter. || rected. | meter,
Ge ub m. a) f Se. Div. ° Mic. Div. 2 ds 9 eh. "ans # ‘ Se. Div. 2) Mice. Diy. oo
20 18 O || 25 04-78] 548-4] 61-3 342-5 | 60-5 H [25 2 O |} 25 10-41) 544-6| 62-1 366-0| 63-4 —
20 O 03-09 || 538-6 | 60-8 360-4 | 60-2 H ° 4 Ot 12-98 || 579-5| 63-2 383-9) 64-7
22 0 04-93 || 537-7 | 60-6 370-3 | 60-4 W 6 0 10-04 || 574-8 | 64-2 414-1} 65-5 |
733 | 0) 07-24 || 534-2] 60-6 361-7 | 60-5 W 720 07-67 || 584-0| 64-6 406-6| 65-8 |
21 OF 40 07-13 || 547-6| 60-7 376-1] 61-0 W 8 0O |} 25 00-57 || 581-2| 64-8 418-7 | 65-7 |
1 O 10-43 || 557-6) 61-0 396-7 | 61-5 B 10 Ot 94 54-72|| 573-5) 64-5 308-2| 64-5 |
10) 10-07 || 555-7 | 61-3 394-9 | 62.2 W |
4 0 09:03 || 559-5 | 62-4 379-0 | 63-9 H | 26 18 0O || 25 01-01 ]| 548-0] 62-5 367-1] 62-1
6 0 07-27 || 569-2| 63-6 383-9 | 64-8 WwW 20 0 01-34 || 538-8} 62.4 370-9| 62-3 |}
7 15 07-57 || 561-2] 63-9 391-3} 64-9 WwW 22-2 06-53 || 534-8] 62-5 360-0} 63-1 |
8 0 05-18 || 561-7 | 63-9 391-8 | 64.7 W 2a) 0 10-09 || 534-8 | 63-0 360-2] 63-9 || B
10 O 06-44 || 555-1] 63-6 380-2] 63-9 WwW 127 00 11-21 || 539-2} 63-6 356-0 65-0 |
i) 12-22 || 541-6| 64-4 343-8 | 66-2
18 0O || 25 07-51 || 553-5] 61-3 347-2| 60-6 H 2 10 14-17 || 548-8] 65-4 350-4] 67-2 |
20 O 02-96 || 552-0} 60-9 341-4] 60-4 H 4" 0 12-22 || 560-4] 66-7 404-1} 68-7
22/510 00-96 || 536-4| 60:8 367-3 | 60-8 W 6 0 07-84 || 573-3 | 67-8 412-2} 69-5 |
23) 0 05-58 || 530-7 | 60-8 378-3 | 61-4 H 7 0) 02-69 || 569-7 | 68-0 423-9} 69-5 | J
22 ORO 08:77 || 533-3 | 61-2 379-8 | 62-0 W Seo 05-23 || 568-7} 68-0 403-6 | 69-2
1 0 10-87 || 539-5 | 61-7 373-3 | 62-8 ist 10 0O | 25 03-37 || 556-7] 68-0 374-8 | 68-5 q
2), 0 10-23 || 547-9| 62-2 368-1] 63-5 W ]
4 0 09-29 || 560-2) 63-2 388-1] 64-6 H 18 O |) 24 59-16 || 533-9) 66-3 332-6 | 66-2
6 0 05-29 || 583-9 | 64-0 415-9] 65-5 WwW 20 O || 25 01:54}| 536-3] 66-1 357-1} 66-0 |
i 02-69 || 569-6} 64.3 446-5 | 65-5 W 22)» 70 02:05 || 534-2| 66-0 362-9
8 0 07-11 || 561-9| 64-5 416-0} 65-3 W 23 0 03-94 533-2 66-1 360-4
10 O 07-40 || 560-6 | 64-2 386-1 | 64-5 Wi28 0 0 06-63 || 531-1} 66-6 354-1
if XH) 10-58 || 536-2] 67-0 350-8
18 0 || 25 01-41] 553-1] 61-8 390-5] 61-0 lel vy 1) 13-32 || 544-6 | 67-8 350-3
20 O 06-01 || 545-3 | 61-4 389-7 | 60-9 H 4 0 11-81 || 557-7 | 69-0 357-9
2250 10-03 || 528-6} 61-4 385:9| 61-5 W 6 0 08-21 || 565-9} 69-8 381-5
257 10 09-91 || 538-9} 61-5 361-9) 61-8 H 720 05-38 || 556-5] 69-8 391-2
23° (0) 10 14-87 || 547-0] 61-7 366-0 | 62-1 W Sez0: 06-26 || 563-3] 69-7 384-0
ie 20 15-20 || 552-4] 61-8 370-2| 62-3 H 10 O |] 25 05-02|| 559-7] 69-0 372-4
2am) 13-63 || 565-1] 62-0 388-6 | 62-5 WwW
4 0 10-83 || 565-6 | 62-4 415-9| 63-2 W 18 0 || 24 59-50 || 545-7| 66-7 391-3
6 O 09-87 || 552-1] 63-0 443-6 | 63-8 W 20 O | 24 57-01 || 545-5) 66-3 380-8]
7 (0) 08-06 || 561-8 | 63-0 419-6 | 63-7 W 22 0 || 25 00-85 || 535-4] 66-0 374-4
8 0 05-58 || 564-3} 63-1 413-8 | 63-7 W 23 0 05-55 || 535-5 | 66-0 377-5
10 O 04-91 || 549-4] 63-0 371-9 | 63-2 Wwi29 0 0 08-75 || 543-2} 66-0 355-7
ko) 13-27 || 544-0} 66-0 356-0
18 0O || 25 00-20)| 547-0} 61-0 390-2} 60-2 H 20) 16-55 || 546-5| 66-0 360-4
20a0 00-01 || 540-8} 60-7 403-7 | 60-2 H 4 Ot 16-80 || 575-0! 66-1 451-0
2210 02-46 || 537-2] 60-5 378-3 | 60-3 ‘W 6 Ot 14-78 || 614-9} 65-9 656-4
23° 10 05-42 || 537-8 | 60-4 379-3 | 60-7 H 7 OF 07-20 || 590-1] 65-6 552-2
24 07 10 09-19 || 545-8) 60-6 374-3 | 61-2 W 8 0 08-41 || 556-5 | 65-3 485-0
1 0 13-00 || 551-9 | 61-0 366-1 | 61-9 H 10 O 07-64 || 545-6] 64-7 401-0
2 0 14-64 || 556-3} 61-5 367-8 | 62-8 WwW
4 0 12-22) 575-4| 62-8 367-0| 64-3 H 18 0O || 25 02-15]| 545-4) 62-4 382-4
6750 10-40 || 587-1 | 63-7 374-5 | 65-2 W 20 0O 02-12|} 532-2) 62-0 383-3
7 O || 25 09-10} 599.5] 64-0 413-7| 65-3 W 225-10 04-14 | 527-3) 61-8 374-2
8 Ot 24 59-34] 563-4) 64-4 480-9| 65-4 ‘W 23) 0 07-00 || 528-7) 62-0 373-7
10 O |) 25 04-17} 564-3) 64-3 410-1) 64-3 W {30 0 0 10-09 || 529-1} 62-2 367-1
iL 13-02 || 536-0| 62-7 365-7
18 0 || 24 57-86|| 539-5 60-8 367-4 | 59-7 H 250 12-42 || 541-0} 63-1 356-7
20 O |) 25 01-01 || 536-8) 60-7 368-6 | 60-0 H 4 0 12-45 || 571-0| 64-4 363-5
22 0 02-52 || 536-5| 60-7 363-8 | 60-6 W 6 0 09-19 || 567-2) 65-7 390-1
a) (8) 05-62 || 536-6| 60-8 357-3 | 61-2 H f ao 07-64 || 577-7 | 66-2 393-0
2) JON0 08-41 || 540-5| 61-1 344-8 | 61-8 W | 8 0O || 25 07-27)|| 574-2} 66-6 397-9
10 09-56 || 552-5" 61-6 342-4) 62-7 H § 10 O11 24 51-931! 550-3! 66-7 386-6
DECLINATION. Magnet untouched, April 144, 1846—May 1847.
BirinaR. Observed 2™ after the Declination, s=0-000135. BALANCE. Observed 3™ after the Declination, s=0°0
{+ Extra Observations made.
BALANCE. Observed 3™ after the Declination, s=0:000010.
IFILAR. Observed 2™ after the Declination, k= 0:000135.
Extra Observations made.
ug. 1424. Qbservations of deflection of the bifilar magnet made to determine (k) the value of one scale division of the bifilar
»arts of the whole horizontal force : during these observations the bifilar thermometer was removed, and the observations at the
rs have meen eeeeoetce to the temperature of the balance magnet,
DaAILy OBSERVATIONS OF MAGNETOMETERS, JULY 30—Avue6usT 10, 1846. 309
BIFILAR. BALANCE. 7. | Gottingen BiFILAR. BALANCE. % Bs
DECLINA- Pp # Mean Time || Deciina- > 2
TION. Cor. |Thermo-|| Cor- |Thermo-|) 2's } of Declina- TION. Cor- |Thermo-|| Cor- /Thermo-| %°5
rected. | meter. || rected.| meter. ||S'~} tion Obs. rected.| meter. || rected. | meter. | 6 —~
- eee Ll =a fhe estas
on. 7 Se. Div. ° Mie. Diy. ° dy fis mye eee Se. Diy. ° Mic. Div. °
18 15 || 24 57-98 || 538-3] 64-6 || 303-2] 64-0 || W} 5 2 O | 25 11-74]] 551-0] 67-3 | 364-5] 68-0 | H
90 0 || 25 00-44]| 533-2) 64.2 || 355-6] 63-8 | W 4 0 08-82 || 548-8] 68-3 || 380-8] 68-8 || W
4 0 04-17 || 530-5} 64:0 || 363-6/ 63-8 || H 670 05-58 || 561-6) 69-5 || 370-3] 69-9 || W
2 0 05-99 || 542-5} 64-0 361-2) 64-3 WwW (a0) 04-37 || 560-2} 70-0 378-2} 70-5 Ww
0° 0 11-24 || 540-8} 64-3 358-3 | 65-0 H 8 0 04-29 || 558-0} 70-3 382-3 | 70-5 W
gay 13-90 || 539-5 | 64-7 || 347-9] 65-7 || H 10 O | 25 06-93]| 562-1) 70-4 || 365.3] 70-4 | W
2 0 11-07 | 557-0| 65-5 || 344-9] 66-9 || H
= 0 09-74 || 564-8} 66-8 375-4 | 68-3 Ww 18 0 || 24 57-31]| 545-0) 66-4 384-1] 65-8 WwW
6 0 02-59 || 588-8} 67-7 || 434-1] 68-7 || H 20 0 || 24 57.88 || 545-4) 65-5 | 380-9] 65-1 || W
7 «(OO 03-37 | 573-5| 67-7 || 434-8/ 68-3 || H 22 3 || 25 05-65/|| 540-4] 65-0 | 360-8] 65-2 || H
8 0 08-45 | 576-4} 67-7 || 389-2] 67-7 || H 23" 40 12-72 || 528-4) 65-1 || 358-9] 65-6 || W
10 0 05-55 || 558-0| 66-9 || 378-5] 66-7 || H 6 02 %0 12-23 || 546:0| 65-7 || 335-6| 66-5 || H
L 0 18-07 || 535-4| 66-7 || 335-8) 67-7 || H
18 0 || 25 00-17|| 534-6} 64-4 || 358-0) 63-6 || W wy 18-34 || 551-7| 68-1 || 331-0| 69.2 || H
20 0 01-65 || 538-6] 64-0 || 368-4} 63-6 || W 4° °0 05-47 || 562-7) 71-0 || 418-4] 72:0 || W
22 0 00-18 || 529-4) 64-2 374-0 | 64:3 H 6 0 06-83 || 577-7 | 73-7 418-6) 74:3 H
23 0 01-54 || 534-1] 64-4 || 374-9] 65-0 || W 780 | 05-25 || 561-9] 74-5 || 418-3] 74-8 | W
7° 0 07-17 || 530-9| 64-8 || 362-0] 65-9 || H 8 0 06-21 || 563-5] 75-0 || 420-9] 75-2 || H
m 60 09-46 || 538-0] ------ 334-1 | 67-2 H 10 O || 25 01-54]| 550-9} 74-8 396-1 | 74-5 H
2 0 10-77 || 524-9] ------ 344-1] 68-2 || H
4 0 08-58 || 555-5] «+++. 376-2| 70-3 || H 18 6 | 24 55-02)| 542-5) 69-0 | 251-5] 68-2 | W
iG” 60 01-98 || 586-8} ------ 434-7| 71-8 || H 20 Of) 25 07-20]| 525-3) 68-0 | 352-6] 67-5 || W
0 06-23 || 563-2) «----- 404.5] 71-9 || H 220; 07-00 || 504-6) 67-2 | 368-7| 66-8 || H
8 Of| 25 05-45 || 565-0} «----- 401-0| 71-7 | H 23°07 15-54 || 503-3] 67-1 | 365-5] 66-8 || W
1 0 || 24 57-78 || 549-8] «-.--- 349-0| 70-7 | H | 7 0 ot 16-25 || 513-1] 66-8 || 364-3] 66-9 | H
a 1 6 17-76 || 528-6| 66-8 | 409-9] 67-2 | H
18 0 || 25 00-45 |) 544-4] «++ 347-6 | 66-5 || W 2G 18-81 || 535-3] 67-0 || 390-4] 67-3 || H
20 0 03-34 || 534-3] ------ 355-9 | 66-5 || W 4 0 13-84 || 553-6] 67-2 | 433-7] 67-4 | W
ae 0 00-44 || 526-8] ----.- 365-8] 66-5 || H nO) 11-10 || 589-2) 67-2 || 440-8] 67-2 || H
23 0 04-58 || 543-3) ---+-- 379-2) 66-7 H hi G 07-54 || 571-1} 67-0 472-8 | 67-1 H
0 0 05-52 || 537-1 | +++. 385-8| 66-9 || H BHO 09-46 || 567-2) 66-8 | 443-9| 67-0 || H
a 0 07-54 || 540-1] «.---- 381-1 | 67-2 H LOF 0 04-21 || 552-7| 66-7 344-1 | 66-8 H
72 0 10-11 || 536-0] ------ 377-7 | 67-7 || H
40 09-13 || 561-9| 72-0 || 357-1] 68-5 || H 18 0 || 25 09-49|] 544-5] 65-7 || 269.6] 65-7 | W
5 0 03-97 || 574-8] 71-5 || 395-6] 71-5 || H 20 OF 13-23 || 533-5] 65-4 | 288-3) 65-5 || W
ta 0 00-44 || 565-8 | 72-0 417-9| 72-2 H 22 OF 08-41 || 502-5) 65.4 363-8 | 65-7 H
8 0 03-90 || 560-1] 72-5 || 397-1| 72-5 || H 23 0 09-49 || 519-4| 65-7 || 385-1] 66-0 | W
10 «0 05-82 | 562-0} 72-6 || 368-7] 72-3 || H 8 0 0 10-23 || 530-9] 65-8 | 387-8] 66-4 || H |
i= 170 13-37 || 529-1| 66-5 || 418-7] 67-0 || B
8 0 || 25 00-04} 544-5/ 67-6 || 389.7) 67-0 || W 2 Of 07-45 || 564-4} 66-9 || 448-2] 67-3 || H
20 0 || 24 59-70] 535-8| 66-7 || 399-1] 66-3 || W 4 0 10-33 || 578-2] 68-1 | 412.7| 68.7 | W
22 0 || 25 00-72 || 530-1} 66-4 || 405-5| 66-7 || H 6 0 || 25 03-67 || 573-6| 69-4 | 475-9) 69-8 | H
23 0 06-86 || 523-3} 66-6 || 399-5| 67-0 || W 7 0 || 24 59-93 || 562-4] 69-8 | 436-0] 70-2 | H
400 0 11-00 || 532-3} 67-0 || 378-3] 67-7 || H 8 Of] 25 04-96 || 582-0) 70-2 | 418-3/ 70-4 || H
‘10 11-42 |) 539-0] 67-6 || 360-8} 68-2 || H 10 0 04-42 || 551-2| 70-1 || 360-2} 70-2 | H |
iF 3 12-63 || 539-8| 68-3 || 367-2) 68-9 || H |
1/4 0 08-82) 551-2| 69-8 || 375-3| 70-3 || W] 9 18 O | 25 07-24|| 515-3} 64-2 || 294-2) 63-7 | W
Lag 04:48 || 558-4| 71-0 389-6 | 71-2 H 20 0 | 04-39 || 532-5] 63-6 358-9 | 63-2 W
Lae 0 03-90 || 564-8| 71-2 || 384-5] 71-5 || H 2260 | 07-62 || 519-2| 63-2 || 389-7| 63-2 || H
\8- 3 03-70 || 558-1) 71-2 || 391-3] 71-5 || H ZomeOn| 10-16 || 518-7) 63-3 || 387-3] 63-6 || W
10 0 04-37 || 554-8] 70-9 || 379-2} 70-8 | H | 10 0 0 10-67 || 532-6} 63-7 || 393-2} 64.2 | H
es 1 0 14-70 | 532-2| 64.2 | 406.9] 65-0 || H
8 4 | 25 00-08 || 544-7| 67-0 || 391-2] 66-8 || H 20% 14-13] 544-6] 65-0 | 435-1] 65-4 | H
ne 0 || 24 58-90 || 537-0| 66-6 || 394-6] 66-2 || H 4 0} 11-95] 550-8] 66-3 || 388-8} 66-9 || W
22 0 || 25 02-01 || 533-7| 66-0 || 385-9] 66-0 || W 6 0] 04-96 || 551-3} 67-3 || 450-5) 67-7 || H
R30 03-92 || 534-5| 66-0 || 387-4] 66.3 | W 7 m0 06-32 || 563-6| 67-7 | 465-3| 67-7 || H |
50 0 08-41 || 538-2| 66-4 || 381-6] 67-0 || W SiO 02-06 | 566-1) 67-5 || 444-7| 67-3 || H
ij 1 0 11-32! 545-0! 67-0 || 369-4] 67-5 H 10 O 03-45 | 550-8! 66-7 395-8! 66-6 H
DECLINATION. Magnet untouched, April 144, 1846—May 1847.
:
=
é AG AND MET. oss. 1846. 41
310
Gottingen
Mean Time
of Declina-
tion Obs.
ll
SIersioro1Olo1S OOO Sis
12
DAILY OBSERVATIONS OF MAGNETOMETERS, AUGUST
Orr OO OS OOS Sie
—
oo ooo ooo oo oS
14
ooooococqcoce.|c6€uc! [6m
—s
ocooooce
BIFILAR.
Teed Gottingen
FS Mean Time
26 | of Declina-
5 tion Obs.
d. He «my
H|15 2 0
el 4010
WwW 6 0
H TO
WwW 8 0)
H 10 0
Ww
H | 16 18 Of
W 20 0
W 22 0
|| W 23 0
Wil 27- 0440
i Oo
WwW 2550
WwW ae)
H 6 0
W Tt OF
H 8 0]
H 10 0
H
Ww 18 0]
H 20 0
H 22 0
H 23 0
Ho) 18) “0%. 0
1 0
W 2 0
Ww 4 0
H 6 0
WwW 148
H Sy.0
H 10 0
H
WwW 18 0
H 20 O
H 22 0
H 23 0
HE | 9) 0n 0
i> 6
W pF 0)
WwW 4 0
H 6 0
Ww a0
Ww 8 0
H 10 0
H
Ww 18 0
H 20 0
H 22 0°
H 23 0
H 120 0 O
t ©
W 2 0
WwW 4 0
H 6 0
WwW 7%0
H 8 0
H 10 0
DECLINA-
TION.
°
25
25
25
11-00
10-87
06-07
06-06
05-58
57:31
11-03
11-37
09-54
10-30
11-12
09-51
10-16
08-34
04:37
55:53
04-31
04-46
|
00-06
01-38
02-77
05-42
09-60
11-07
13-46
10-11
05-40
02-84
04-95
04-24
00-84
01-61
03-45
06-79
10-80
11-41
11-00
08-75
62-93
01-93
03-55
01-45 |
00-51
01-14
00-40
05-02
09-08 |
13-05
14-53
07-51
04-37
04-37
05-05
05-22 |
10—20, 1846.
BIFILAR.
Cor- |Thermo-
rected. | meter.
Se. Diy. a Mie. Div.
552-4| 61-2 444-4
573-8} 61-9 433-0
553-9 | 62-2 493-5
559-9} 62-3 466-6
554-4| 62-3 429-8
566-3 | 62-2 365-2
522-5 | 62-2 262-6
543-9} 61-7 284-2
524-2) 61-6 363-7
537-4| 61-8 368-5
539-8 | 62-2 353-9
536:4| 62-6 353-7
541-9} 63-2 356-2
547-1] 63-6 365-7
569-3 | 64-0 403-1
592-5| 64-2 446-8
560-1) 64-3 412.4
556-1} 64-3 373-6
541-9| 62-2 347-3
541-1] 61-6 357-8
535-3 | 61-2 372-0
530-7] 61-1 364-4
544-4 60-9 355-9
543-2} 61-0 362-2
045-2! 61-0 353-0
548-5 | 62-0 375-2
553-8 | 63-6 412-1
564-8 | 64-0
564-0} 64:3
552-8 | 64-0
545-6] 61-1
536-1) 60-3
529-9| 59-9
531-5| 60-0
529-2| 60-7
543-5 | 61-7
554-3 | 62-7
551-6 | 64-4
568-3) 65-9
564-5 | 66-7
559-1 | 67-0
550-5 | 66-8
542-6| 62-6
534-1} 61-7
533-6) 61-3
536-5 | 61-2
537-8 | 61-3
547-3 | 61-4
548-4] 61-6
552-5 | 61-9
565-3 | 62-2
558-5 | 62-2
558-1} 62-2
554-8 | 62-2
BIFILAR. BALANCE.
DECLINA-
TION. Cor- |Thermo-|} Cor- |Thermo-
rected. | meter. || rected. | meter.
2 4 Se. Div. © Mie. Diy. a
25 06-24 || 539-2) 62-7 357-4 | 62-2
07-22 || 543-4} 61-9 346-4 | 61-6
00-82 || 528-3 | 61-5 381-2) 61-5
04-69 || 522-2) 61-6 386-3 | 61-8
08-88 528-0} 61-7 382-2] 62-2
11-57 | 534-6! 62-0 382-9 | 62:5
12:80 | 544-3} 62:3 393-4) 62-7
11-34 || 555-4 | 62-8 407-6 | 63-5
08-01 | 564-8} 63-6 409-3 | 64-0
06-30 || 563-1 | 63-9 406-7 | 64-3
05-47 | 565-7) 64-0 391-5) 64-2
01-27 || 547-6 | 63-7 387-0 | 63-7
25 01-63 || 554-3} 61-3 362-7 | 61-0
04-58 || 540-9 61-0 375-8 | 60-8
00-74 || 537-7 | 60-8 393-1] 61-0
03-99 || 530-3} 60-9 388-1] 61-2
08-65 || 525-5) 61-2 387-1 | 61-5
10-23 || 541-3 | 61-6 382-3 | 62-2
11-52 || 551-2] 62-1 381-6 | 62-7
02-48 || 578-0} 63-1 495-9| 63-7
08-26 || 574-9] 64-4 510-1} 64:8
08-08 || 566-4 | 65-0 485-9 | 65-2
25 10-23 || 568-9} 65-1 441-0 | 65-3
24 57-71 || 539-5| 64-8 353-0 | 64-8
25 07-57 || 531-0} 62-4 325-4] 62-2
11-75 || 538-0} 61-9 343-2! 62-0
11-89 || 507-1 | 61-9 380-4 | 62-2
10-56 || 535-3} 61-9 371-2) 62-6
10-25 || 542-9| 62-4 379-7 | 63-0
11-54 || 529-2} 62-7 403-5 | 63-2
08-99 || 543-9 | 63-0 441-7 | 63-5
09-69 | 554-6| 63-5 498-6] 64-0
05-45 568-7 | 64-6 507-1 | 65-0
04-04 | 562-7 | 65-0 478-8 | 65-3
02-67 | 562-6| 65-2 468-8 | 65-3
06-79. 557-3 | 64-8 389-0 | 64-7
25 12-35 | 550-5 | 60-5 205-9] 59-8
06-88 | 544-7] 59-5 223-6) 58-9
02-01 | 527-6) 59-0 323-9] 59-0
07-27 | 528-3] 59-0 332-5 | 59-3
08-90 | 530-1 | 59-3 338-6 | 60-0
12-31 | 542-9| 60-1 345-5 | 61-0
14-92 | 558-2} 61-1 359-5 | 62-2
12-75 | 524-2) 63-3 540-4 | 64-0
08-11 | 554-0) 64-8 439-8 | 65-3
25 07-84 | 562-0} 65-2 403-0 | 65-7
24 59-93 564-3 | 65-4 431-0 | 65-5
24 57-71 | 532-1] 65.0 293-4 | 64-2
25 03-14 | 548-2] 61-7 301-6 | 61-4
00-42 | 527-1} 61-0 360-8 | 60-7
05-69 | 516-4 | 60-5 382-6} 60-5
07-60 | 521-8 | 60-6 394-5] 60-8
12-92 | 524-1 | 60-7 402-0} 61-0
15-27 | 528-44 60-9 402-7! 61-5
DECLINATION.
Observed 2™ after the Declination, s=0-000135.
Magnet untouched, April 144, 1846—May 1847. *
BALANCE. Observed 3™ after the Declination, k=0-00001 U.
+ Extra Observations made.
BALANCE. |
Cor- The mo .
rected. | meter. |
DAILY OBSERVATIONS OF MAGNETOMETERS, AUGUST 20—31, 1846. 311
BIFILAR. BALANCE. 3 Gottingen BIFILAR. BALANCE. oa
DECLINA- > 31 Mean Time |} DECLINA- | BS
TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°S | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2 ‘= |
rected, | meter. || rected.| meter. 5 | tion Obs. rected. | meter. |] rected. | meter. || 5 ~
7h. om. Cae i Se. Div. ° Mic. Diy. ° ad. oh. om: Babi Se. Div. © Mic. Diy. °
‘18 0 | 25 02.42] 547-4| 61-1 370-7} 61-1 W{] 26 2 Of] 25 15-14] 551-9} 59-7 || 341-4] 61-0 || W |
0 || 24 59-86 || 535-1) 61-0 || 383-3} 61-1 WwW 4 3 11-57 || 554-0| 62-2 || 369-4] 63-8 H |
22 0 || 25 05-52|| 530-9| 60-8 || 368-1} 61-0 H 6 0 08-38 || 559-6 | 64-4 || 368-4/ 65-8 || W }
23 0 06-14 || 534-6] 61-0 || 357-0| 61-3 || W 7 0 07-24 || 560-9| 65-0 || 359-4! 66.3 || W |
no 0 10-83 || 542-0] 61-2 || 346-9) 61-5 H 8 0 00-64 |} 563-3] 65-6 || 365-2) 66.6 || W
1 0 14-40 || 540-3} 61-7 || 343-9] 62-2 | H 10 0 || 25 06-59 || 553-9] 65-5 |) 352-7] 65-9 || W |
2.0 14-37 | 541-7| 62-2 || 353-1] 63-0 || H
ae O 10-38 || 551-7| 63-7 || 379-0| 64-3 || W 18 0 || 24 57-71 || 546-8} 60-5 || 296-9} 59.5 H
so. 0 06-97 | 562-9} 65-2 |) 363-9] 65-7 H 20 O |) 25 01-31 )| 534-6] 58-2 || 348-3] 58.2 Jel |
— 6 a 05-25 || 571-9} 65-6 || 367-7| 66-0 H 22 0 07-34 || 525-4) 58-5 || 366-0] 57-8 || W |
8 0 04.44 || 558-1) 66-0 || 401-3) 66-2 || H 23 0 11-77 || 532-6 | 58-2 || 360-8 | 58.0 tM
10 0 03-40 | 552-8] 65-7 || 373-5| 65.7 Ee 27 (0). 0 15-01 || 529-1} 58-3 || 368-3) 58-4 || W
q 1 0 13-09 | 539.0} 58-7 || 367-5] 59-5 || H |
ms 0 | 25 01-98 || 556-0| 62-9 || 374-1| 62-7 | W 2 0 12-49 || 547-9 | 59-5 || 359-7] 60-5 || W |
20 0 08-65 || 538-6] 62-3 || 365-5] 62-0 || W 4 0 08-88 || 555-8 | 61-8 || 362-4] 63-5 Hf
22 0 01-75 || 531-7} 61-8 || 362-5] 61-8 H 6 0 05-25 || 563-2| 64-0 |) 348-9} 65-3 W if
23 «0 06-73 || 529-3} 61-9 || 357-3] 62.3 || W 7 0) 03-13 || 581-4] 64-8 || 357-2} 65-8 || W }
0 0 12-72 || 533-9] 62-3 || 346-3} 63-0 || H 8 Of] 25 01-63]| 565-1} 65-2 | 410-5| 66-0 | W
a 60 17-70 || 538-1) 63-1 336-0} 64:0 | H 10 Of] 24 57-98 || 524-7) 65.5 | 318-4] 66.2 || W
2 0 17-93 || 552-3} 64-1 332-2| 65-2 || H
= 0 11-81 || 566-4] 66-5 || 346-7} 67-3 || W 18 0} 25 02-12|| 544-1] 63-0 || 350-8 | 62-5 H
ip 0 08-79 | 563-6| 68-7 || 378-5) 69-0 || H 20 0 || 24 58-85/|| 542-9} 62-0 || 370-5} 61-5 H
v 0 05-58 || 566-3| 69-2 || 390-4) 69-8 | H 22 0 | 25 01-21|| 536-6) 61-6 || 360-5) 61-5 || W |
8 O 05-29 || 558-7| 69-6 || 389-3) 69-7 || H 23 «+O 05-09 || 535-1] 61-6 || 348-3) 61-9 tal]
io Ot 16-08 || 533-7] 69-3 || 206-2} 69-2 | H | 28 0 O 10-88 || 535-0} 61-9 || 335-8| 62-8 | W
he 1 0 14.87 || 540-2 | 62-7 332-8 | 63-9 Ht
18 O || 25 00-89] 549-3] 60-4 || 386-7| 60-0 || H 2 0 16-13 || 556-3 | 63-6 || 329-9} 65-1 W
20 O || 24 59-54 || 543-6] 59-8 || 389-5) 59-6 H 4 3 09-29 || 566-1 | 65-7 || 354-6 | 67-2 H {
22 0 || 25 02.46] 533-6] 59-6 || 387-0) 59-6 || W 6 0 | 25 08-01 || 573-7| 67-2 | 432-0) 68-3 | W
Zo 0 05-25 || 532-9] 59-8 || 375-3) 60-1 H 7 Of|| 24 56-11 || 584-2] 67-7 || 462-6] 68-5 || W |
m0 10-30 || 533-1] 60-2 || 358-8] 60-8 || W 8 0 || 25 05-15 || 558-4) 67-9 || 428-4] 68-6 | W
0 14-65 || 539-7} 61-0 || 351-6| 62:0 || H 10 Of] 25 04-84 |} 549-5| 67-6 || 279-5] 67-9 || W
@ 0 15-41 || 544-2] 62-3 || 349-6] 63-1 | W
cl ) 11-28} 556-8] 64-0 || 370-3) 64-7 || H 18 O |) 24 58-85 |) 546-0} 65-0 || 349-4] 64-5 HY
B 0 08-52 || 569-5} 65-0 || 376-2) 65-3 || W 20 0 | 25 O1-65|| 523-7 | 64-2 |) 350-1] 63-9 | HT |
7 0 08-95 || 577-4) 65-3 || 382-9} 65-5 WwW 22 0 04-29 || 523-8) 63-7 |) 355-0!) 63-5 || W |
8 0 03-75 || 555-3| 65-4 || 401-1) 65-4 || W 23 0 10-13 || 521-6| 63-5 351-9 | 63-5 H
10 Ot 01-96 || 548-4) 64-9 | 325-1) 645 | W ] 29 O O 12-04 || 540-5 | 63-6 || 332-3] 63-8 || W |
f 10 15-36 || 555-8 | 63-7 || 328-7) 64-2 Hj
18 9 || 25 06-04) 526-7} 59-1 321-4) 58-0 H 20 14.94 || 554-4} 64-0 || 350-0| 64-6 || W |
) 0 00-00 || 537-6| 57-6 || 369-9] 56-7 H 4 0 11-44 || 553-4| 65-0 || 373-7] 66-0 H
22 0 04-86 || 521-1] 56-9 || 379-4) 56-5 || W 6 Of|| 25 00-60)| 590-3.| 65-8 || 394-8} 66-8 | W
23 0 09-76 || 523-6] 56-8 || 376-9} 57-0 || H 7 0 || 24 58-82)| 576-3) 66-0 || 413-9} 67-2 || W |
20 0 13-91 || 543-9} 57-3 || 364-5| 58-0 || W 8 0 || 25 05-11 || 562-3} 66-3 || 399-1] 67-0 || W |
hi 0 10-83 || 549-4] 58-3 || 378-9) 59.5 H 10 Of) 25 02-55 || 594-5) 66-1 301-7 | 66-3 || W |
12 0 12-42 || 547-4| 59-8 || 377-5] 60-8 | W
12. 0 11-59 | 556-8] 62-5 || 381-7| 63-3 H | 30 18 0 || 25 03-27 || 541-3) 64-0 || 349-5) 63-7 || H
1/6 0 07-00 || 568-5) 64-0 || 371-1| 64-7 | W 20 0 00-25 || 541-9| 63-4 | 364-0} 63-2 Hf
17 Of] 25 03-38 || 546-0] 64-6 || 410-4| 65-0 | W 22 O 03-28 || 535-4 | 63-1 367-6 | 63-3 || W |
18 O | 24 57-71 | 567-4] 64-8 || 386-0| 65-2 || W 23 «0 06-19 || 529-5 | 63-2 | 365-9} 63.4 H |
#0 0 || 25 05-11] 553-7| 64-6 || 357-6] 64-6 | W731 0 0 07-15 || 536-2| 63-3. || 347-3) 63-7 || W
io 1 0 09-00 || 536-5 | 63-4 || 345-4) 63-7 Jal
18 © || 25 00-57 || 543-9} 59-7 || 349-7] 59-0 || H 2 0 11-98 || 542-8} 63-3 | 343-7) 63-5 || W |
20 0 || 24 59-90) 531-2| 58-4 || 383-8) 58-0 H 4 0 09-37 || 550-2} 63-2 || 362-2| 63-5 jetg
22, 0 || 25 05-36 || 516-6] 57-7 || 375-4) 57-6 || W 6 0 06-01 || 555-5 | 63-3 || 371-4} 63-8 || W |
23 0 06-97 || 532-2| 57-7 || 364-6| 58-1 H ie all) 05-08 || 560-3} 63-5 || 372-4| 63-9 || W |
£0 0 11-52) 534-2) 58-0 || 356-8] 58-7 || W 8 0 04-15 || 561-2} 63-5 || 371-9} 63-8 | W |
a) 10 13-121! 549-8! 58-8 || 345.9! 59-9 || H 10 O 02-22 !' 554-0! 63-4 || 344-5! 63-2 || W |
DECLINATION. Magnet untouched, April 144, 1846—May 1847.
_ PIRILAR. Observed 2™ after the Declination, s=0-000135. BALANCE. Observed 3™ after the Declination, s=0:000010.
Extra Observations made.
tug. 27215. The declination was noted 25°:01’-41, but as it-was found to be 25°14”80 with little apparent change at 1) 20™, it was
‘Meved that the reading at 1" was 20 scale divisions in error, and it has been corrected accordingly.
DECLINA-
TION,
25
17-15
57-14
11-82
06-93
03-81
01-98
01-65
BiF1LAR.
Cor-
Se. Div.
557-2
634-6
625-1
560-1
552-1
| 513-4
539-8
536-7
526-7
| 630-4
536-9
538-4
541-2
550-7
547-8
548-7
548-0
545-4
540-1
530-1
527-2
528-0
526-8
541-5
558-7
593-6
588-1
569-8
536-9
536-8
538-1
533-4
519-9
526-0
528-7
537-9
550-6
555-6
562-3
553-9
551-7
548-8
540-7
533-6
529-9
529-6
537-8
540-0
540-5
509-4
557-3
556-8
553-6
543-1
312
Gottingen BiriuaR. BALANCE. ‘ | Gottingen
Mean Time || DECLINA- re 7 -= | Mean Time
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 3°35 } of Declina-
tion Obs. rected. | meter. || rected. | meter. 5 a tion Obs.
do the, m0: I , Se. Div. 2 Mic. Div. 2 de. hs om.
31 18 0O || 25 00-60|| 543-7] 58-8 366-7 | 57-5 H 2 22476
20 O 01-04 || 538-7) 57-7 389-3 | 56-2 H 4 ot
22 0 03-02 || 532-9} 56-8 328-2] 55-9 WwW 6 oT
Pippy ee iD) 06-39 || 537-2] 56-7 382-2} 56-2 H 7 Ot
rt 700 09-89 || 541-4| 56-7 370-2} 57-0 W 8 0
1) 13-12 || 551-8] 57-4 354-9 | 58-2 | H 10 ot
Pa (OR | 14-10 || 560-0| 58-3 352-4| 59-5 W
40 09.42 || 561-1} 61-5 346:4| 62-0 H 6 180
6 0° 06-16 || 555-3| 62-4 || 362-0| 63-6 || W 20 0
iO 05-02 || 558-0) 62-9 375-8 | 63-8 W DT a}
8 0 05-06 || 559-3} 63-0 373-4) 63-8 W 93 #0
10 O 04-58 || 556-9} 62-8 362-4 | 63-2 W ~ 10 *'0
1 0
18 0 || 25 00-13 || 547-0| 59-8 356-5 | 59-5 H 2°66
20 O 02-12 || 543-6) 59-2 361-1] 59-0 H 4° "0
23 0 04-88 || 536-5 | 58-9 365-6 | 58-8 W 6° 07;
23,0 08-31 || 539-4) 59-0 563:0| 59-1 H 4 Oo
PA Nie) 10-C0 || 538-9 59-0 355-7 | 59-5 W So"
a) 10-25 || 544-1] 59-5 352-6 | 60-5 H 10 0
2 10 12-3 552-6] 60-2 346-3 | 61-3 W
40 07:98 || 557-5| 61-8 346-8 | 63-0 H 18 0
6 0 05-38 || 562-1] 62-8 341-1} 63-8 W 20 ot
4 * 0 05-82 || 561-5! 63-1 343-7 | 64-0 W 22 0
30) 01-54 || 558-7} 63-3 349-3 | 64-0 W 23 0
LOE a) 05-52 || 556-9} 63-1 355-6 | 63-6 W OW)
1s)
18 0 || 25 00-64] 545-2| 60-3 364-8 | 60-0 H 2°"0
20 O 03:27 || 535-5} 60-0 370-6 | 59-7 igi 4 0
22:0 04-88 || 535-8} 59-8 357-3 | 60-0 W 6 0
23 0 08-29 || 534-4] 60-0 350-5 | 60-5 H ac *O
3 10:0 10-06 || 536-7| 60-4 345-0} 61-3 W 8 Ot
Leo 10-61 || 541-7] 61-2 339-3 | 62-4 H 10:0
2 0 11-19 || 548-3} 62-0 330-6 | 63-2 W
4 0 06-84 || 560-4) 63-2 340-5 | 64-2 H 1s. *"0
6 0 03-88 || 560-1} 63-8 347-3 | 64-7 W 20 O
«0 04:75 || 554-8] 64-0 345-9 | 64-8 W 220
80 05-08 || 558-3 | 64-0 345-6 | 64-8 W 23.5"
10 0O 05-50 || 558-7 | 63-9 348-6 | 64.4 W 3 10:5
E30
18 ot 25 12-51 || 536-7] 61-5 304-5 | 61-5 H 2 0
20 O 02-03 || 543-9} 61-2 273-7 | 61-2 H 4 0
22 “Or 17:56 || 530-5 | 61-1 302-9} 61-5 W 670
23 0 14:50 || 539-3) 61-4 360-6 | 62-0 H 0
4 00 16-57 || 526-8} 61-9 353-5 | 62-7 W 8 0
1 O 18-84 || 554-0} 62-4 361-7) 63-4 || H 10° 0
2 0 18-68 || 536-9} 63-0 || 406-0) 64-0 W
4 0 14-50 || 544-5| 64:4 | 415-9] 65-4 H 18 0
(cone) 06-73 || 548-5] 65-7 | 401-8] 66-7 WwW 20 0
ha) 06-16 || 547-3} 66-0 387-1] 66-8 W 220
8 0O || 25 06-12\| 552-3) 66-0 375-3 | 66:8 W EBA 0)
10 Ot 24 54-70 || 549-3] 66-0 376:8 | 66-5 Wii10 0 O
1 0O
18 O || 25 04-14]) 559-7) 63-5 336-9 | 63-5 H 2 0
20 Ot 12-01 || 527-9] 63-0 369-4} 63-0 | H 4 0
22) 07; 13-41 || 515-3] 62-7 | 379-9] 62-7 ‘W 6=0
23 Ot 15-04 || 517-6 | 62-7 415-1 | 62-8 lel 7° 0
a O © 18-82 || 521-6} 62-8 392-7| 63-4 H 8 0
1 Ot 20-72 || 556-1 | 63-4 418-4! 64-2 Jaf TORO
DECLINATION. Magnet untouched, April 144, 1846—May 1847.
Bririnar. Observed 2™ after the Declination, k=0-000135.
BALANCE. Observed 3™ after the Declination, s=0°000 01
¢ Extra Observations made.
Thermo-
rected. | meter.
63-9
65-9
DAILY OBSERVATIONS OF MAGNETOMETERS, AUGUST 31—SEPTEMBER 10, 1846.
BALANCE. |
Cor- |Thermo-|
rected.
Mic. Div.
387-7
739-2
601-5
| 475-3
440-2
132-7
372-1
382-1
381-4
| 369-4 |.
364-7
362-6
370-9
371-7
369-3
370-9
365-9
366-7
378-9
329-1
339-0
356-0
380-7
395-4
431-0
532-9
539-0
501-5
426-6
390-7
398-2
404-4
401-2
402-0
| 396-1
389-3
381-9
432-5
489-3
453-7
415-6
385-6
411-8
408-4
389-5
385-4
379-3
| 380-7
375-2
393-1
431-7
457-5
465-9
404-6
Pe
meter. |
|
65-2 |
67-3 |
68-6 | 7
69-2 |
68-8 |
68.0 |
65:8
65-2 —
DAILY OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 10—21, 1846. 313
BIFILAR. BALANCE. % _ | Gottingen BIFILAR. BALANCE. ‘ vi
BG UON AS lee ney eee PeMean Time |) DECLINA= Yq ne
TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°s | of Declina- TION, Cor- |Thermo-|| Cor- |Thermo-|| 3 °g
m rected.| meter. || rected. | meter. || S'“ | tion Obs. rected. | meter. || rected.| meter. || 5
h m, a s Sc. Div. P Mie. Diy. le Gey eh.) Ms B 3 Se. Div. 9 Mic. Diy. o
18 0 | 25 00-74/| 555-9| 59-4 368-9 | 58-8 H |16 2 O] 25 12-87) 544-3] 61-7 | 369-3] 62-3 W
20 0 04:37 || 529-2} 58-7 372-3 | 58-2 H 4 0 08-28 || 547-8} 62-8 362-4 | 63-5 Jal
2 0 20-30 || 534-1) 58-4 341-2] 58-3 | W (aj (0) 05-77 || 553-0] 63-5 309-4 | 64-2 W
3 0 16-55 || 542-6} 58-6 364-6 | 58-8 H 70 05-36 || 556-2| 63-7 357-0| 64:3 || W
0 0 17-78 || 525-4} 58-9 392-1} 59-5 W 8 0 05-30 || 556-8 | 63-8 355:0| 64-3 W
10 17-93 || 534-0) 59-6 413-7 | 60-5 H | 10 0 04-71 || 553-2] 63-7 357-7| 64-2 || W
) Ot 17-58 || 563-3| 60-5 || 452-5] 61-8 | W |
4 0 | 25 12-01 || 537-0] 63-1 477-4 | 64-8 WwW 18 0 || 25 04-75 || 548-7) 61-5 337-9| 61:0 | H
6 Ot 24 43-69 || 589-2) 65-5 741-9} 67-0 W 20 O 01-16 || 546-4} 60-7 358-2 | 60-2 | H
17 0 || 24 57-75 || 563-2| 66-2 529-4] 67-5 | W | 22 0 05-30 || 528-8] 60-3 367-5| 60-0 | W
8 0 || 25 03-77 || 550-8| 66-7 || 444-7) 67-7 WwW 2350 10-20 || 527-4} 60-2 362-5 | 60-0 H
1 Ot 06-50 || 579-3} 66-9 228-1] 67-6 Wor iy 700 0 12-56 || 537-2) 60-2 354-0 | 60-3 WwW
[ / 1,0 14-50 | 537-7| 60-4 || 361-5] 61-0 || H
18 0 || 25 01-31 || 532-0) 64-4 292-8! 64-2 | H 2 0 13-94 || 541-4} 60-9 368-4 | 61-5 W
20 0 06-44 || 519-9} 63-8 346-6] 63:7 | H 4 0 07-89 || 549-9} 61-9 365-8 | 62-7 W
22 0 08-52 || 520-3 | 63-6 378-6 | 63-7 || W 6 0 06-16) 559-3) 62-5 380-1] 63-2 W
23 0 12-15 || 527-4| 63-6 386-4 64-0 W | 7 O 05-65 | 547-1| 62-7 396-1} 63-2 W
io’ 0 09-98 || 524-5} 63-9 389-7| 64-5 || W 8 0 03-81 || 555-7| 62-7 389-6 | 63-2 ‘W
a 11-37 || 538-5 | 64-5 401:3| 65-7 | H 10 O 07-11 | 555-0] 62-6 312-8] 62-8 ‘WwW
2 0 13-16 || 558-4| 65-1 || 389-6| 66-3 | W
4 0 05-15 || 571-6| 66-8 477-2 | 67-8 H 18 0 || 25 03-90 | 548-8| 60-2 366-7 | 59-5 H
an) 05-92 || 543-7| 67-6 417-5 | 68:3 W 20 0O 02-45 || 543-5] 59-4 370-7 | 58-5 H
ay 02-75 || 558-5 | 67-6 397-8 | 68-0 WwW 220) 05:55 || 543-0) 58-7 363-6 | 58-2 W
'8 0 04-71 || 552-5| 67-4 374-1} 67-6 ‘W 23 0 08-99 | 538-6] 58-5 356-9 | 58-3 H
0 0 09-17 || 556-7 | 66-7 287:3| 66-8 | W]18 0 0 12-60 | 541-7] 58-6 362-2| 58-9 W
| it) 14-33 || 531-5| 59-0 365-3 | 59-7 H
8 0 25 01-68 || 550-4] 63-7 286-0 | 62-0 | H 20 12-75 | 544-1} 59-6 360-5 | 60-5 ‘W
20 ot 07-81 || 515-0} 62-7 343:0| 62:0 | H 4 0 08-77 | 544-4| 61-1 370-9 | 62-0 H
22 0 13-44 || 533-6] 62-0 326-5] 61-5 | W | 6e0R 05-42 | 549-4) 62-0 374-8 | 62:7 WwW
23 (0 16-65 || 554-4! 61-9 341-1} 61-8 H Te) 05-72 || 553-1] 62-1 365-8 | 62-7 W
‘0 0 14-91 || 537-1) 62-0 342-6 | 62-5 W | 8 0 || 25 05-29] 555-7) 62-0 363-0} 62-3 WwW
{2 0 12-82 || 534-1] 62-6 372-0| 63-2 H { 10 O || 24 59-61 |) 557-2] 61-3 359-7 | 61-0 ‘W
2 0 11-91 || 546-5} 63-1 413-3) 63-9 | W
14 0 08-58 || 557-1| 64-7 | 461-5] 65-9 | H 18 0 | 25 03-47] 547-7| 56-7 | 368-1] 55-6 || H
16 0 04-76 || 558-1] 66-2 || 402-3} 67-3 || W } 20/50 01-68 || 549-1} 55-8 377-7 | 55-0 H
7 0 02-82 || 554-1] 66-8 406-3) 67-7 | W 22 0 04-56 || 537-0} 55-1 382-2] 54-7 W
(8 0 02-33 || 550-6) 67-2 402-3| 67-8 | W 2340 07-67 || 538-7 | 55-0 373-6| 55-0 H
10 0 02-13 || 557-6} 67-2 355-4| 67-55 | WT 19 O 0 10-47 || 543-3 | 55-3 365-6 | 55-6 WwW
| | 1 10 14-20 || 542-7| 55-8 || 373-3| 56-2 | H
118 0 | 25 07-52 || 535-9} 63-7 314-5 | 63-0 | H 2 0 12-85 || 547-2} 56-3 378-2) 57-1 W
i 0 08-11 || 540-3) 62-7 334-3 | 62-0 | H 4 0 11-41 || 559-9| 57-2 389-0 | 58-0 Ey
i 0 | 14-07 || 507-3) 62-2 368-6 | 61-7 WwW 6 O || 25 11-72] 557-1} 57-8 422-2) 58-4 W
|23, 0 12-98 || 528-7 | 62-0 360-4} 62-0 W 7 ot 24 54-41 || 551-0} 57-9 477-7| 58-4 W
(0. 0 12-67 || 525-5 | 62-2 366-2 | 62-6 W 8 0 | 25 02-39 || 555-0} 57-9 413-4} 58-5 W
Hues 6 08-03 || 535-9} 62-8 363-0 | 63-7 H 10 O | 24 59-56 |) 552-6} 57-9 409-2] 58-3 W
i 2 0 12-75 || 529-3 | 63-6 365-6] 64-8 | W
;4 0 09-69 || 541-0] 65-7 |) 407-2] 66-8 H {| 20 18 O | 25 00-00]| 549-1] 56-3 358-7| 56-2 H
}6 0 04-55 || 556-4| 67-2 370-4 | 68-3 W 20 O 02-79 || 546-1} 56-1 353-5 | 56-0 H
| 7: 0 03-02 || 554-0} 67-8 371-1} 68-5 W 2250 04-44 || 540-5} 55-9 355-0 | 56-0 W
ji8) 0 03-95 || 553-8] 68-0 373-8 | 68-6 WwW 23 610 07:40 |) 540-7 | 56-0 349-1] 56-2 igi
10 0 00-99 || 546-0| 67-7 358-4 | 67-9 Wi 21 0 0 09-39 || 538-7| 56.4 350-4 | 57-0 W
ita 1 O 13-05 || 545-7} 57-0 351-6] 57:8 H
18 0 || 25 02-08 }} 543-5| 63-3 369-8 | 62-5 H 20 12-15 || 544-5| 57-6 353-1) 58-6 W
200 0 01-34 || 537-3 | 62-2 379-7 | 61-0 H 4 0 09-35 || 558-9} 58-9 348-8] 60-0 H
\22— 0 03-57 || 529-7] 61-3 374-5 | 60-5 WwW 6 0 08-46 || 564-8} 60-0 343-2 | 60-5 W
" (23° 0 06-43 || 528-8) 61-1 374-8 | 60-7 H 7 O || 25 08-73} 571-9} 60-3 362-2] 60-6 Ww
to 0 09-77 || 534-8} 61-1 366-6 | 61-0 WwW 8 Of| 24 41-23 || 567-2) 60-4 498-7 | 60-4 WwW
ol 0 11-48 || 544-4! 61-3 366-9 | 61-7 H 10 Of] 25 02-32" 551-1! 60-0 376-8! 60-2 W
DECLINATION. Magnet untouched, April 144, 1846—May 1847,
_ BIPILAR. Observed 2™ after the Declination, s—0:000135. BALANCE. Observed 3™ after the Declination, s=0:000010.
{+ Extra Observations made.
4k
+ Extra Observations made.
314 DAILY OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 21—OcTOBER 1, 1846. —
Gottingen BIFILAR. BALANCE. ‘ & Gottingen BIFILAR. BALANCE.
| Mean Time || DEcLINA- - 2] Mean Time || Decuina- =
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| &‘2 | of Declina- TION. Cor- |Thermo-| Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter. 5 “1 tion Obs. rected. | meter. || rected. | meter. |
Gh = Thoparreille 2 2 Se. Div. ° Mic.Div.| ° ds, eh. . foxe)|| nce Se. Div. e Mie. Div. i
21 18 O || 24 55-12|| 518-7| 56-6 119-4| 55-6 | W] 26 2 O |] 25 08-83] 548-8| 56-5 373-3 | 56-7
20 Of| 25 11-98 || 505-8 | 55-2 133-6) 54-0 H 4 0 ‘07-57 || 551-8 | 57-0 383-1] 57-6
22 0 14-10 || 472-3 | 54-0 298-4) 53-2 H 6 0 06-19) 553-9] 57-7 || 364-9) 58-2
23°60) 18-37 || 487-7] 53-8 || 395-7} 53-2 H Te) 04-89 || 556-9 | 58-0 || 358-1) 58-6
122) 0) 0; 15-47 || 532-0} 53-8 || 546-7} 53-2 H 8.0 05-79 || 556-8 | 58-2 360-6 | 58-8
1207; 15-41 || 591-2} 53-9 || 664-6) 54-2 H 10°70 02-96 || 550-2} 58-3 359-2] 58-7
2 OF 06-86 || 641-9} 54-2 || 650-9} 55-0 H
4 Of] 25 11-74|| 624-1] 55-7 607-5 | 56-7 H | 27 18 0O || 25 00-40|| 547-0] 56-6 || 331-1} 54-5
6 Of] 24 45-40)| 554-8] 56-9 || 453-3) 57-8 B 20 O 05-50 | 549-2] 54-4 || 339-4] 53-2
7 Of) 25 11-57 |) 463-6 | 57-1 257-6 | 58-0 B 22 0 01-45 || 534-7 | 53-3 358-6 | 52-3 |
8 Of] 24 21-92)| 515-4} 57-3 272-2| 58-3 B 2370 06-43 || 535-0| 53-0 || 348-8} 52-3 _
10 Of|| 24 47-59 || 362-2] 57-5 ||—21-6| 58-5 W] 28 0 O 07-58 || 533-5 | 52-8 || 338-3) 52-5
‘ ie) 09-87 || 539-6 | 52-8 340-7 | 52-7
18 0 || 25 18-47/|| 540-6] 56-4 210-4) 57-0 H 200 09-62 || 539-0) 52-8 333-0) 52-8
20 0 02:42 |} 536-5| 56-4 |) 301-1) 57-0 H 4 0 07-82), 554-6| 53-0 || 351-0| 53-2
22 0 03-75 || 532-4] 56-5 307-2| 57-0 W 6 0 || 25 06-97 || 558-5| 53-2 || 374-2) 53-5
23 0 07-04|| 532-8| 56-6 || 307-0) 57-2 H 7 Of) 24 56-23 || 581-4| 53-2 || 350-7] 53-5
23) 1050 08-65 || 532-7] 56-7 || 304-3} 57-3 WwW 8 O || 25 00-94 | 547-0) 53-3 358-8] 53-7
ie 0) 09-29 || 531-6| 56-8 306-3 | 57-4 jel TORSO 02-01 | 547-1} 53-3 352-6 | 53-7
2 10 09-33 || 534-2] 57-1 510-1 | 57-9 W
4 0 06-12 || 541-1] 57-8 || 313-4] 58-7 H 18 0 || 25 02-48 || 551-0| 53-0 || 343-2) 53-2
GO 05-65 || 550-1] 58-4 || 316-5] 59-3 W 20°, 0 01-01 || 549-8 | 53-0 || 344-3] 53-1
a0 05:43 || 552-0) 58-6 || 317-6} 59-3 WwW 22 0 02-32 || 537-9 | 52-8 || 342-9} 52-9
8 0 06-41 || 561-8) 58-7 323-4] 59-4 || W Pah (0) 04-39 || 534-3 | 52-8 335-9 | 53-0
10 O |} 25 04-82]| 544-9} 58-7 380-2 | 59-1 W E29 080 06-63 || 539-8 | 52-7 326-1} 52-8
i 30 08-21 | 544-4| 52-7 320-4 | 52-7
18 30 || 24 59-17 || 543-4] 56-6 317-2] 56-6 | W PD 09-15 || 548-1) 52-6 325-7 | 52-7
20 O || 25 02-26) 538-9] 56-3 329-6] 56-3 W 4 0 06-14] 550-5) 52-6 340-9} 52-8
22 0 04-95 || 529-3| 56-0 || 331-4] 56-2 || H 670 04-34 || 554-3 | 52-6 344-5 | 52-7
23 =O 08-52 || 527-8} 56-0 328-6| 56-3 || W «0 01-41 |) 556-1 | 52-5 349-8 | 52-8
24 0 O 11-84 || 536-7} 56-2 || 327-4) 56-7 H 8 0 04-04 || 549-6 | 52-5 357-2 | 52-8
1 O 11-41 || 540-0} 56-6 || 327-7) 57-3 H 10 O 01-01 |) 549-4} 52-5 363-3 | 52-7
2 0 12-58 || 544-9| 57-2 || 334-3] 58-1 H
4 0 06-84 || 546-2] 58-6 || 345-7] 59-8 || W 18 O || 25 01-75 || 553-1] 52-1 341-7} 52-3
6 0 05-32 || 553-6| 59-7 || 338-4] 60-7 ist 20 O 00-98 || 547-1 | 52-0 351-3 | 52-2
7 O | 25 05-221) 553-2} 60-0 || 364-7] 60-8 WwW 22/510 00-55 || 540-7] 52-2 || 339-6) 52-4
8 Of|| 24 52-57 || 571-3} 60-0 || 344-6| 60-7 H 23 0 02-89 || 537-4] 52-2 || 337-3] 52-8
10 O || 25 00-40 || 548-0| 60-1 360-5 | 60-5 iy |) 20) 10, 410 08-68 || 542-4) 52-6 || 328-3] 53-5
1 20 08-88 || 541-0} 53-1 331-3} 54-2
18 0O | 25 00-98 || 544-4| 58-9 344-3 | 59-0 W 20:0 09-49 || 549-7} 54-0 334-4! 55-3
20 O 00-98 || 540-6} 58-6 || 347-6] 58-8 WwW 4 0 06-32 || 549-9} 55-6 332-7 | 56-9
2250 02-45 || 534-6] 58-5 341-9} 58-7 H 6 0 04-59 | 550-9 | 57-0 341-9| 58-2
23 O 04.91 || 533-8] 58-6 || 341-2} 59-0 W fie 03-77 || 556-4| 57-6 || 340-1) 58-5
25 0 O 09-35 || 533-3 | 58-8 351-3} 59-6 || H 8 0 00-17 || 552-5 | 57-7 344-3 | 58-7
1G 09-56 || 541-7 | 59-4 || 333-7} 60-3 H 10 O || 25 01-95 ]| 546-2} 57-5 351-3} 58-2
20 11-72 || 541-3| 60-0 || 329-6] 61-2 || H Wh
4 0 10-16 || 545-5) 61-3 341-2] 62-4 | W 18 0O || 24 59-56} 550-1 | 55-5 324-3 | 55-5 bu
6 0 08-01 || 572-1] 62:0 || 344-7] 63-0 || H 20 0 || 25 06-74)| 541-8} 55-0 || 308-3) 55-3 7 W
me 08-01 || 558-1] 62-2 363-7 | 63-0 H 22 420 01-18 || 534-5} 54-8 || 320-4] 55-2
8 0 03-50 || 553-5] 62-2 || 369-7] 62-8 H 230 06-93 || 530-4| 54-9 321-4| 55-4
10 0O| 03-70 || 549-5| 61-8 || 357-6) 62-3 H if 100.0 07-79 || 534-3 | 55-0 || 322-7] 55-7 |
i (0) 08-34 || 540-5 | 55-2 329-5 | 56-0
18 0O || 25 01-68]| 541-3] 58-7 334-7 | 58-2 || W 290 12-15 || 554-8} 55-7 340-7 | 56-7
20 O 05-27 || 537-3| 57-9 || 349-1] 57-0 W 4 0 08-29 || 555-8} 57-2 || 365-7) 58-3 _
220i 09-66 || 522-4] 57-1 359-7 | 56-6 H 6 0 || 25 05-53) 560-4| 58-6 | 346-2) 59-7 f”
t 23) 0} 07-65 || 532-5) 56-8 || 356-8} 56-3 W 7 O || 24 59-73), 557-1 | 59-0 390-9| 59-7
#26 0 0} 08-85 || 533-8} 56-6 || 359-0} 56-2 | H 8 0 || 24 49-77 || 545-7) 59-0 362-1} 59-5
1 0 10-50 |! 532-7! -56-5 371-0) 56-7 H 10 O |! 25 03-851! 549-8| 58-4 344-7 | 58-5
DECLINATION. Magnet untouched, April 144, 1846—May 1847. "
BIFILAR. Observed 2™ after the Declination, k=0:000135. BALANCE. Observed 3™ after the Declination, k=0-00001
DECLINA-
TION,
—
eoococo oss So SoH
=
11-86
09-22
07-13
03-77
05-99
04-64
ooocococoocoroco
co SCONOKRNK OWN
25 03-47
03-50
02-79
04-95
07-84
08-92
10-77
07-02
05-65
04-44
03-82
03-60
pS
NO
—
© SCHONAARNHKOWNS
cooococoocoeoco
02-82
02-13
04-68
06-50
09-47
11-84
11-91
07-92
03-81
58-65
02-35
59-49
ww
KH OWNSCHO CONOKRNWHK CWHD
pc al" em
coooceocoocoeocoo
08-34
02-94
06-37
07-29
08-86
09-82
coococe
—_- -
ye ee eee
BIFILAR, BALANCE.
Cor- |Thermo-|} Cor- |Thermo-
rected. | meter. || rected. | meter.
Se. Div. © Mic. Div. °
546-9 | 53-9 333-9] 52-8
539-7] 52-7 335-2! 51-5
535-2} 51-8 336-4 | 50-7
526-1 | 51-6 330-7 | 51-0
535-9| 51-6 337:4| 51-5
547-8} 51-9 330-3 | 52-3
541-6 | 52-7 345-7 | 53-7
5d1-1| 54-5 353-6 | 55-7
535-6 | 55-8 401-9| 56-8
555-7 | 56-2 390-4 | 57-2
536-9) 56-5 377-1 | 57-2
539-7 | 56-2 258-3 | 56-6
538-8 | 54-2 197:9| 54-2
540-4 | 53-5 275-7 | 53-2
532-2] 52.8 306-1 | 52-7
533-6 | 52-7 313-0] 52-9
541-4] 52-8 315-7 | 53-4
540-5} 53-2 321-5| 54-2
545-0) 53-8 327-9} 55-2
557-4 | 55-5 327-8| 56-8
565-7 | 57:3 315-4} 58-2
552-0] 57-6 350-8 | 58-3
558-0] 57-6 340-0 | 58-0
558-0] 56-8 331-5 | 57-0
552-5 | 52-1 339-2) 52.4
546-6 | 52-1 342-3 | 52-6
540-6 | 52.7 348-4 | 53-2
536-7 | 53-0 347-7 | 54-0
538-6! 53-6 342-0 | 54-7
544-3] 54-1 334-1] 55-3
551-1} 54.7 336-1 | 55-7
539-8 | 55-4 368-7 | 56-4
550-1 | 56-0 343-5 | 56-8
553-2| 56-2 334-7 | 57-1
551-8 | 56-2 327-7) 57-2
552-6 | 56-6 322-3| 57-2
551-8 | 56-3 321-7} 56-8
548-6 | 56-2 322-2) 56-7
540-7 | 56-3 326-2] 56-9
537-4| 56-4 324-9) 57-0
539-4] 56-5 324-9 | 57-0
541-5| 56-7 329-2) 57:3
546-2 | 57-0 335-1] 58-0
549-7 | 57-7 365-0 | 58-6
546-5 | 38-3 371-8 | 58-7
554-6 | 58-3 365-6 | 58-5
548-6 | 58-0 397-3 | 58-2
539-5 | 57-2 329-4| 57-2
556-4 | 54-6 282-0) 54-2
550:5 | 54-0 309-0} 53-4
537-6 | 53-5 326-4| 53-1
534:6| 53-4 332-2) 53.4
537-5| 53-5 336-3 | 53-9
540-6! 53-8 342-0! 54-4
. .
we
Observer’s
Initial.
misdinss Mititsetitisits Ss Mite sss Ss pe desesas mm git tg |
Gottingen
Mean Time
of Declina-
tion Obs.
Seoeooocesr
ts :
loo)
et
SQ) Sos SS) SS]
Ne)
Sore Soro 1S So -S1S
—
—
i=
qooocoooowocqcoe
—
—
—
oooqcoooqooco coc
DECLINA-
TION.
25
25
11-66
11-03
13-46
16-79
14-26
15-27
04-91
05-49
02-39
04-68
02-89
07-13
13-12
08-46
13-29
15-20
09-29
08-01
04-37
03-63
56-77
02-69
DAILY OBSERVATIONS OF MAGNETOMETERS, OcTOBER 1—12, 1846.
BIFILAR. BALANCE.
Cor- |Thermo-|| Cor- |Thermo-
rected. | meter. || rected. | meter.
Se. Div. © Mie. Div. C
545-3 | 54-3 327-6| 55-0
559-6 | 55-1 389-9 | 55-8
555-01 55-5 432-5 | 56-0
549-8 | 55-5 443-7 | 55-8
525-8} 55-4 253-7 | 55-7
524-0] 55-2 311-3] 55-7
558-4 | 52-7 |-218-6| 52.3
506-0] 52-2 ||+189-8} 52-1
533-7| 51-8 295-9} 51-7
537-4] 51-8 331-3 | 51-8
540-8 | 51-8 342-6| 52-2
500-9 | 52-0 440-4| 52-6
565-1] 52-5 516-4 | 53-2
610-1] 53-4 666-6 | 54-5
546-0 | 54-0 544-4 |} 55-0
536-9 | 54-1 472-6| 55-0
532-1) 54-1 429.2] 55-0
538-1] 54-0 344-1 | 54-7
537-0] 52-4 298-5 | 52-3
534-7 | 52-0 327-0} 52-1
535-6 | 51-8 349-3 | 52-0
527-9| 51-9 350-2 | 52-2
515-3 | 51-9 364-8 | 52-3
534-2 | 52-0 377-4 | 52-5
536-4 | 52-1 368-1] 52-5
590-6 | 52-2 388-1] 52-6
550-5 | 52-4 399-9 | 53-2
549-9 | 52-7 395-2] 53-7
545-5} 53-0 382-7] 54-0
550-1) 53-7 329-5 | 54-7
558-5 | 54-7 95-9} 55-4
534-5 | 54.9 189-0] 55-7
518-4 | 55-0 301-0] 55-8
516-7| 55-3 335-4| 56-2
514-7} 55-7 334-4 | 55-6
523-6) 56-0 364-8 | 57-0
528-1 | 56-3 428-2) 57-2
551-1) 56-9 578-7 | 57-8
544-1 | 57-4 432-1] 58-7
547-0 | 57-6 413-6] 58-3
548-1 | 57-7 418-4] 58-2
549-0} 57-5 366-3 | 58-0
551-5 | 54-0 297-4} 54-4
043-8} 53-9 334-6 | 54-3
519-8| 53-8 326-9 | 54-2
531-5| 53-9 347-2} 54-3
539-9] 53-8 348-7 | 54-4
535-3 | 54-0 363-2] 54-7
544-6 | 54-0 386-7 | 54-7
540-0 | 54-1 380-2 | 54-6
553-0] 54-0 361-5 | 54-0
547-4| 53-7 375-4] 53-7
548-5 | 53-5 381-2 | 53-3
550-9} 53-0 356-3 | 52-9
co
—
Or
Observer's }
Tnitial.
HHS isis MiSs oss Pees mihi tes |
DECLINATION. Magnet untouched, April 144, 1846—May 1847.
4 IPILAR. Observed 2™ after the Declination, k—=0:000135.
BALANCE.
Observed 3™ after the Declination, k=0:000010.
Tt Extra Observations made.
BALANCE.
316 DaiLy OBSERVATIONS OF MAGNETOMETERS, OcTOBER 12—22, 1846.
Gottingen BIFILAR. BALANCE. + _ | Gottingen BIFILAR.
Mean Time || Deciina- P= | Mean Time || Decurna-
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 3°3 | of Declina- TION. Cor- |Thermo-|} Cor-
tion Obs. rected. | meter. || rected.| meter. || S'~ | tion Obs. rected. | meter.
ds bh m. ) sf Se. Div. 3 Mic. Div. ° mie }) ee i“ Se. Div. 2 Mic. Div.
12 18 O || 25 03-11]) 551-4) 50-1 349-0| 49-1 WwW O || 25 09-54 || 544-9} 52-2 || 314-4
20 0 02-75 || 547-2) 49-3 360-5 | 48-3 W 0 07-29 | 552-3 | 52-7 306-7
2270 04-68 || 538-5 | 48-8 363-8} 48-0 H 0 04-71 || 557-4| 53-1 304-7
23.80 09-22 |) 537-8 | 48-7 362-8 | 48-2 W 0 04-07 || 559-6 | 53-2 || 304-2
13 50,0 07-60 || 535-9 | 48-7 362-7 | 48-4 H 0 04-34) 557-7| 53-2 || 304-6
1,0 08-65 || 537-6 | 48-6 359-8 | 48-7 H 0 00-06, 559-1} 53-5 305-8
2 0 09-42 || 545-3] 48-7 || 356-2) 49.0 H
4 0 06-71 || 545-4| 49-0 365-6 | 49-3 WwW 0 || 25 02-62) 555-1] 52-7 302-4
6 0 || 25 04-64}) 548-54 49-0 371-3 | 49.2 Et 0 02-19 | 551-1} 52-5 311-9
7 O || 24 53-95|| 565-3 | 49-0 357-6| 49.2 H 0 01-72) 542-3} 52-4 327-5
8 0 | 25 02-66 || 547-2} 48-8 || 358-7] 49-0 Fell 0 04-82 | 539-7 | 52-5 || 315-8
10 0 02-99 || 545-1} 48-5 302-1] 48-5 H 0 08-53 |, 539-8 | 52-7 314-2
1 0 09-08 | 545-4} 53-0 315-8
18 0 || 25 02-22]) 553-1] 46-7 326-1] 46-5 WwW 2 0 08-39 || 550-7| 53-0 || 322-1
20 O 04-24 |) 552-9} 46-3 330-3 | 46-1 W 4 0 07-00 || 560-3] 53-4 || 324-5
22 0 04-48 || 542-3 | 45-8 345-0 | 45-7 H 65 0 06-70 | 549-9| 53-6 362-2
23° 0 06-73 || 532-9 | 45-7 347-2| 45-6 WwW 7 oo 10-45 || 551-6] 53-6 || 385-2
14 0 O 10-00 || 535-4} 45.5 340-9 | 45-5 H fe} 0) 05-67 || 556-9| 53-6 365-3
10 10-56 || 541-4 | 45-4 || 337-4] 45.5 H 10 O 03-48 | 553-1 | 53-4 345-3
2 (0) 10-03 || 544-3 | 45-4 335:5 | 45-5 jal
4 0 05-99 || 549-8] 45-4 345-4 | 45.8 WwW 18 10 || 25 01-09 || 554-8} 52-3 289-9
6 0 03-16 || 551-1 | 45-7 352-1 | 46-7 H 20 O 03-88 | 551-5} 52-1 317-2
th XY) 03-02 || 553-6 | 45-9 347-5 | 46-5 H 22 0 04-96 / 539-4 | 51-8 320-9
8 0 03-35 || 552-6| 45-9 347-2| 46-6 H 23° 0 04-34 || 540-3] 51-8 || 323-2
10 O 04-02 || 553-3) 46-2 348-8 | 46-7 H | 20 200 08-28 | 542-7| 51-7 322-0
t. 10 09-22 | 541-2} 52-1 315-2
18 0 || 25 02-97 || 555-5 | 46-6 329-8 | 47-0 Ww 2 0 11-49 549-2| 52-4 || 317-6
20 O 02-39 || 552-4} 46-7 335-9 | 47-2 WwW 4. (01; 13-29 | 550-1 | 53-2 326-4
22. 0 03-63 || 545-5 | 46-9 338-2 | 47-5 EL 650 06-30 | 553-1} 54-1 358-1
23 (0 06-09 || 543-8} 47-1 334-2 | 48-0 WwW (gral) 06-16 | 557-6| 54-3 331-5
i 3030 06-56 || 542-1} 47-6 326-4} 48-5 H St On) 00-62 | 554-5] 54-4 335-7
Ly 0 08-68 || 546-1 | 48-0 322-3 | 49-2 H 10 O 04-10 | 552-8| 54-3 322-8
2 0 08-99 || 549-0 | 48-6 317-5) 49-7 H
4 0 06-83 || 553-8 | 49-7 313-8 | 50-8 ‘W 18 0 || 25 02-53) 552-4] 51-7 319-9
6 0 04-31 || 553-8] 50-6 316-7 | 51-5 H 20 0 02-40 | 550-9) 51-0 326-6
te 02-43 || 556-0| 50-7 319-2) 51-7 H 221.0 02-26 | 541-0} 50-6 344-0
is} 0) 03-09 || 558-9] 50-8 310-8 | 51-7 H 2300 04-89 || 540-5 | 50-3 338-9
10 O 04-07 || 555-5) 50-8 314-9) 51-5 Ey | 2E FOe-0 07-24 || 534.6| 50-2 345-1
So) 12-38 || 546-5] 50-2 334-4
18 15 || 25 02-941) 559-9] 49.1 262-2) 49-3 WwW 20 09-22 || 549-4] 50-3 324-2
20.0 01-90 || 551-9} 48-8 295-4 | 49-0 WwW 4 0 08-58 || 557-5] 50-9 329-5
227 0 04-68 || 537-3 | 48-4 329-0 | 48-5 H 6 0 05-23 || 555-5] 51-5 327-4
23. 0 08-65 || 535-6 | 48-3 329-3 | 48-6 WwW 70 04-05 | 553-4] 51-6 329-1
16 0" 0 09-57 || 540-3 | 48.4 324-4 | 49-0 H 8 0 03-43 || 555-2} 51-6 || 327-4
1 0 10-28 || 539-4] 48-8 331-0] 49-5 H 10 O 02-01 | 566-2] 51-5 315-8
2 0 09-47 || 541-6 | 49-3 321-9} 50-3 H
4 0 07-57 || 549-1] 50-6 324-5 | 51-7 Ww 18 0 || 25 02-87 || 546-5| 50-5 282-3
6 0 03-06 || 551-6 | 51-6 320-3] 52-7 Jal 20 O 04-01 || 540-5 | 50-2 318-6
i a0 03-09 || 556-6 | 52-0 || 319-0} 53-0 H 22. 0 05.45 || 520-8] 50-0 332-6
8 0 03-43 || 555-7 | 52-2 316-7 | 53-0 H 20810 03-74 || 539-9 | 50-0 318-5
10 O 02-42 |) 550-1 | 52-3 323-4] 53-0 EH} 22) 702.0 10-90 || 545-7 | 50-0 328-2
Wy) 12-25 || 545-4] 50-0 338-1
18 0 | 25 02-50) 555-8 | 51-6 302-3 | 52-0 W 2 0 12-72 || 545-8} 50-1 355-6
20 O 02-87 || 558-6 | 51-4 299-8 | 51-8 ‘W 4 0 | 25 11-03) 552-7] 50-4 388-0
22 0 02-05 || 542-9 | 51-3 313-6 | 51-7 H 6 Of) 24 47-66} 537-6| 50-5 395-6
23 O 04-14 || 538-2) 51-4 || 316-5} 52-1 WwW 7 O | 24 53-00]! 534-4] 50-6 || 375-7
17 0 O 07-07 || 537-4} 51-6 || 312-9| 52-2 H 8 O || 25 02-84 || 541-7} 50-6 360-6
1 0 09-19 || 541-0} 51-8 312-7 | 52-6 1BL 10 O 03-70 || 555-61 50-5 372-1
DECLINATION. Magnet untouched, April 144—May 1847.
BIFILAR. Observed 2™ after the Declination, s=0:000135.
+ Extra Observations made.
BALANCE. Observed 3™ after the Declination, s=0-00001
The
rected. | meter, |
53-0 |
53-7 |
54-0
54.2 |
50-5 |
50-2 |
50-0 | 1
50-0 | I
50-0 |
DAILY OBSERVATIONS OF MAGNETOMETERS, OCTOBER 22,—-NOVEMBER 2, 1846. 317
— BIFILAR. BALANCE. ie, Gottingen BIFILAR. BALANCE. Be }
ee cchINA- |||. |. | Ba) Mean Time || Decuina- |, |__| b = |
eclina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 3° 4} of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| $=
n Obs. rected. | meter. || rected. | meter. 5 Po tion Obs. rected. | meter. || rected. | meter. 5 a
womi °° Sc. Div. ° Iie Dive ee Gis ihe em, ||| Ole.” Sc. Div. | ° Mic. Diy.| ° |
18 0 || 25 03-77 || 550-7 | 48-7 301-1] 48-5 H | 28 2 O || 25 09-82] 548-1] 47-8 290-0} 48-8 W I
120 0 01-31 || 544-7 | 48-2 324-6] 48-0 H 4 0 07-94 || 552-1] 48-7 304-1} 49-7 H }
22 O 05-89 || 527-3 | 47-9 335-8 | 47-7 WwW 6 0 05-65 || 557-5 | 49-3 298-2) 50-1 W I
0 07-13 || 533-1] 47-7 328-8 | 47-7 H 7 O 00-80 || 554-4} 49-5 303-0] 50-3 WwW
0 0 08-25 || 538-0] 47-8 307-8} 48-0 W ft 8 0 04-64 || 560-8] 49-5 296-4} 50-2 W iY
iol. 0 10-16 || 544-7 | 47-8 306-1] 48-2 H 10 O 01-61 || 562-7 | 49-5 298-4] 50-0 W |
2 0 11-07 || 546-3 | 48-0 311-8} 48-5 W
4 0 07-34 || 554-7 | 48-4 313-7| 49-0 H 18 0O || 25 03-00] 554-3] 47-8 282-1) 48-0 H
6 0 05-00 || 558-2} 48-9 310-6] 49-5 W 20 O 03:87 || 549-3 | 47-4 298-6 | 47-4 H
7 0 05-29 || 555-1] 49-2 312-:9| 49-6 W 22 0 04-86 || 541-7} 47-0 308-1} 47-1 W
8 0 03-65 || 557-1) 49-0 309-9 | 49.4 W 23 0 07-63 || 538-4] 46-8 300-6 | 47-0 181
10 O 02-52 || 555-0} 48-7 306:6| 48-8 Wi29 0 0 08-65 || 541-6] 46-8 299-2] 47-1 W
tO 08-80 || 539-9} 47-0 297-3 | 47-5 H
18 0 |) 25 06-63 || 548-7 | 46-7 290-6 | 46-5 H 2 0 09-82 || 551-5] 47-5 296-8 | 48-6 WwW
20 O 03-70 || 549-1 | 46-2 310-8] 46-2 H 4 0 08-08 || 557-0} 49-2 299-2) 50-2 Jal}
2 0 01-05 || 541-0] 46-0 324-2! 46-1 W 6 0 04-66 || 556-6] 50-5 290-1} 51-4 W
23 0 02-70 || 540-4} 46-0 311-3] 46-2 jal 7 (0) 03-09 || 559-3] 50-8 287-8} 51-5 H
0 O 06-16 || 543-5] 46-0 307-3 | 46-3 W 3) (0) 00-80 || 558-7) 50-8 295-1} 51-3 WwW
Hn. 0 08-08 || 545-1 | 46-2 311-3 | 46-7 H 10 0O 02-62 || 550-1] 50-3 302-3] 50-4 W
ia, 0 08-77 || 548-7 | 46-4 311-4| 47-0 W
4 0 06-63 || 551-8 | 47-0 323-5 | 47-8 H 18 0O | 25 04-58 || 552-0] 46-9 274-6 | 46-3 H
6 0 05-72 || 558-3 | 47-6 317-7 | 48:3 W 20 O 01-45 || 551-9} 46-1 300-5) 43-5 H
7 O || 25 06-12)| 555-9) 47-7 317-1} 48-3 W 22 0 02-25 || 547-0} 45.2 306-5 | 44-7 W
8 0 || 24 51-52]! 566-2] 47-7 322-7} 48-3 ‘W 23 «=O 03-99 || 539-7) 44-8 308-2) 44-5 H |
10 0 || 25 03-20|| 552-7 | 47-8 318-8} 48-4 W{30 0 0 10-21 || 532-0] 44-8 310-7| 44-5 W |
1) 12-58 || 536-4| 44-7 311-9} 44-7 H
18 0 || 25 02-25 || 553-5] 46-8 314-5 | 46-2 H 4 (4) 13-52 || 540-2] 44-7 318-2] 45-0 W i
20 O 02-55 || 550-4] 46-0 320-3 | 45-2 H 4 0 06-86 || 549-0] 45-4 325-0| 46-2 Hf
22 0 01-34 |) 545-0] 45-1 325-1] 44-6 W 6 0 05-72 || 554-7 | 46-3 303-9 | 47-0 WwW
mo 3 01-68 || 544-9} 44-8 323-9) 44-7 H c.0 04-14 || 556-3 | 46-7 301-5 | 47-2 WwW
0 0 07-76 || 544.0] 44-9 325:3 | 45-1 WwW 8 0 03-45 || 556-1] 46-9 298-7 | 47-3 W
a) 09-29 || 540-7 | 45-0 322.9 | 45-8 H 10 O 01-61 || 553-9] 46-7 298:4| 47-0 WwW
; Zz 0 11-82]) 548-6) 45-3 315-0} 46-0 W
4 2 07-51 || 556-3 | 46-7 321-6| 47-6 H 18 0 | 25 02-69] 554-0} 45-3 274-0} 45-6 H
6 0 06-29 || 551-4] 48-1 321-9| 49-0 ‘W 20 O 04-05 || 553-1] 45-3 286-0} 45-7 H
17 0 05-11 || 558-0] 48-5 318-8 | 49-2 W 22 0 02-72 || 547-1] 45-6 292-3| 46-1 W
‘8 0 06-36 || 559-6| 48-5 315-1] 49-0 W 23 0 05-69 || 541-6| 45-8 291-3] 46-3 H {
10 0 01-54 || 553-3) 48-2 317-2) 48-5 Wi3l 0 0 08-56 || 539-3) 46-0 288-3| 46-8 W {
i © 08-46 || 548-3] 46-4 287-7 | 47-2 Hf
18 0 || 25 02-80|| 553-7| 44-6 321-2] 43-8 H 2120 10-43 || 557-1} 46-9 292-7| 47-7 W
20 0 01-98 || 551-8] 43-4 323-6| 42-7 H 4 0 || 25 07-87 || 549-9} 47.7 303-6} 48-5 H
22 0 02-39 || 538-9] 42-4 334-9] 41-7 || W 6 O || 24 58-42]| 554-3} 48-1 299-9} 49-1 WwW
} 23 0 04-78 || 537-0 | 42-2 328-6) 41-7 H 7 O| 25 04-34]| 561-3) 48-4 291-4] 49-3 W
10 0 07-13 || 540-3 | 42-0 320-4| 42-1 W 8 0 02-15 || 557-8| 48-7 292-5] 49-6 W
1) 0 10-85 || 548-8} 42-2 315-8 | 42-7 H 10 O 03-63 || 558-7 | 49-1 283-0] 49-8 W i
= 0 10-63 || 545-8} 42-6 318-3 | 43-6 ‘W
14 0 08-11 || 551-6} 44-4 323-2) 45-7 H 118 0O || 25 06-97 || 555-9} 49.9 265-5] 50-0 H }
16 0 05-02 || 553-3 | 46-3 317-6 | 47-3 W 20 O 03-81 || 552-4) 49.9 269-4| 49.9 H {
7.0 04-59 || 559-1 | 46-7 307-8 | 47-5 W 22) 0 03-20 || 542-2) 49-8 283-3 | 49-8 W I
\g 0 05-23 || 560-0| 46-9 306-6 | 47-6 W Za 0 04-34 || 537-4] 49-8 287-1) 50-2 H |
10 0 01-07 || 550-2} 47-0 298-4} 47-7 W 3 (0) (0) 08-63 || 539-8 | 50-0 287-2} 50-5 WwW
i) 12-02 || 536-7 | 50-3 300-1} 51-0 Ea
18 0O || 25 03-37 || 553-6| 46-8 298-5] 47-2 H 20 12-55 || 536-4! 50-6 322-5| 51-2 W Y
20 O 02-72 || 553-7| 46-6 296-9| 47-2 H 4 0 07-10 || 554-7] 51-2 329-6| 51-9 H
22 0 01-52 || 547-8 | 46-7 308-3 | 47-3 WwW 6 O 03-43 |) 549-2) 51-5 337-1) 52-0 WwW
23 0 03-94|| 543-4] 46-9 302-8 | 47-5 WwW “a ov 02-40 || 544-6] 51-6 320-3 | 52-1 W
20 0 07-10 || 541-5} 47-1 292-4) 48-0 H 8 0 || 25 03-72]| 545-8) 51-6 313-6 | 52-0 W |
! 1,0 08-61! 544-5| 47-4 296-9! 48-3 H 10 O |] 24 54-45'| 543-6) 51-5 238-11 51-9 W Yt
DECLINATION. Magnet untouched, April 144, 1846—May 1847.
_ SIFILAR. Observed 2™ after the Declination, k=0-000135. BALANCE. Observed 3™ after the Declination, =0:000010.
:
: | MAG, AND MET, oBs, 1846. 4.
318 DAILY OBSERVATIONS oF MAGNETOMETERS, NOVEMBER 2—12, 1846.
Gottingen BIFiLaRr. BALANCE. 7 | Gottingen BIFILAR. BALANCE. —
Mean Time || Deczina- || ———~————_|__— | z. 5 |, Mean Time || Decuina- |, ;
of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-] 2°2 | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter. |5'~ | tion Obs. rected. | meter, || rected. | meter,
al thee ein: £ “8 Se. Div. eS Mic. Div. 3 ad bh. m. 2 2 | Se. Div. 2 Mic. Div. cf
218 O/]|| 25 04-48 || 549-9} 51-0 |) 279-5] 51-4 H|.7 2 O|] 25 10-18|| 550-7| 49-7 || 301-1} 50-09
20 0 05-29 || 555-0) 51-1 268-4} 51-3 Ht 4 0 06-32 || 553-2] 50-3 292-8} 50-8 |
22,0 05-05 || 534-1} 50-9 289-2) 51-1 WwW 6 0 04-62 || 559-3| 51-0 299-9| 51-5 —
23 0 08-75 || 541-2] 50-8 286-3 | 51-2 H 4. 0 04-71 || 557-2] 51-1 298-2) 51-6 |
ay) 0) 09-62 || 541-2} 51-0 283-5 | 51-5 Ww 8 Of) 25 00-74 )) 540-1| 5]-2 334-9} 51-7 |
Pro 11-17 |) 540-2} 51-3 293-8 | 52-0 H 10 O || 24 46-68 || 520-6} 51-4 251-6) 51-9 |
2 0 13-63 || 544-0] 51-6 304-3 | 52-4 || W |
4 0 07-04 || 555-1) 52-0 308-9 | 52-7 H 818 0 || 25 01-95 || 555-0} 49-5 294-0} 49:5 |
6 0 04-05 || 557-2) 52-4 287-4 | 53-0 WwW 20 0 03-70 || 553-0} 49-0 || 302-9| 49-0 }
fe 03-50 || 555-3.) 52-4 282-7 | 53-0 Ww 22 0 03-50 || 545-9} 48-6 301-6} 48-2 |
8 0 03-20 || 554-6] 52-5 284-0 | 53-0 WwW 23 0 04-81 || 539-3] 48-2 305-2} 48-0 |
10 0 03-20 || 559-2| 52-6 277-5 | 53-2 WwW 5 0-30 06-84 || 538-6} 48-0 303-7| 47-7 |
10 10-09 | 543-9} 47-8 298-0] 47:5 |
18 0 || 25 02-01 || 555-0} 52-5 276-4 | 52-7 H 2 300) 08-72 || 543-4] 47-8 302-2} 47-6 |}
20 O 02-39 || 550-3| 52-1 273-7 | 52-2 H 4 0 06-09 || 552-1] 47-6 309-9| 47-5
22 0 03-23 || 545-8} 51-8 283-0 | 52-0 WwW 650 03-90 || 555-9} 47-5 295-8| 47-3 |
23 110 04-86 || 541-5) 51-8 289-9 | 52.2 H 420 03-97 || 556-0 | 47-3 296-5 | 47-2
4 0 O 06-90 || 543-1} 52-0 285-8 | 52-5 W 8 0 01-52 || 552-0} 47-1 304-5 | 46-9 |
i) 07-35 || 548-3 | 52-3 281-3 | 53-1 H 10 O 01-21 || 551-0} 46-6 292-4| 46-2 |
PA 0, 06-09 || 549-9| 52-7 279-4!) 53-5 W d |
4 0 03-74 || 552-8} 53.4 273-5 | 54-3 H 18 0 || 25 03-04 | 556-4| 44-2 307-1)| 44-0
6 0 04-58 || 557-1} 53-9 270-1 | 54-8 WwW 20:20 01-88 || 554-6} 43-6 306-6} 43-2 |
Zh al) 03-63 || 556-1] 54-0 272-8 | 54-8 WwW 22 0 01-85 || 543-4] 42-9 309-4) 42-3 |}
8 0 03-48 || 556-8] 54-1 273-8 | 54-9 Ww 23 0 04-31 || 542-0} 42-5 308-6) 42-2
OE 3) 03-14 || 558-5| 54-1 275-5 | 54-9 Wi t0 so 10 08-43 || 535-7| 42-3 308-2| 42-2 |
LY Ue 08-41 || 540-9} 42.3 303-0] 42-6 |
18 0 || 25 02-121) 552-9] 53-1 269-1] 53-2 H Jeo 08-34 || 550-8| 42-6 304-2) 43-3 |
20 O 05-89 || 547-7| 52-7 279-8 | 52-5 H 4 0 06-06 || 557-1} 44-0 303-5 | 45-2 |
22 O 03-81 || 546-9} 52-1 293-1} 51-8 W 6 0 04-55 || 558-9] 45-7 293-0} 46-7 |
23 70 06-32 || 540-2) 51-9 291-9) 51-7 H 7 <0 03-88 || 560-0} 46-0 289-8| 46-8
o 10 70 07-08 || 541-8) 51-8 290-2} 51-8 Ww 8 0 03-70 || 559-9 | 46-1 287-9} 46-7 |i
i) 09-76 || 549-7 | 51-7 287°6 | 52-0 H 10 O 02-19 || 556-8} 45-8 289-8} 46-0 ©
2 0 09-46 || 552-9} 51-9 297-8 | 52-4 W : ||
4 0 06-26 || 554-0} 52.6 307-8 | 53-2 H 18 0 | 25 03-13 ]| 558-7} 42-6 296-7| 42-3
6 0 04-53 || 5955-0] 53-3 301-3) 54-0 Ww 20 0 01-95 || 554-2} 41-8 299-4] 41-5 |
co 02-99 || 556-0) 53.4 297-5} 54-0 WwW 22 0 02-08 || 548-9} 41-0 309-4} 40-6 |
8 0 || 25 03-37 || 557-9} 53.4 291-6] 53-9 WwW 23 0 03-81 || 545-1} 40-7 304-2] 40-2 |)
10 0 || 24 59.39 |) 557-8) 53-3 290-0 | 53-7 Wit 1 0 60 06-10 || 544-8] 40-4 307-5 | 40-3 |i
po) 08-34 || 553-1} 41-3 305-4| 40-5 |
18 0 | 25 04-64 || 554-3) 53-3 282-9 | 54-0 H 250 07-94 || 554-4} 40-4 306-2] 40-8 |
20 0 03-81 || 553-4] 53.2 280-7 | 53-8 H 4 0 05-62 || 559-7| 40-8 || 305-5} 41-5 |
92 O 02-37 || 547-3] 53.2 288-8] 53-6 WwW 6.0 05-32 || 558-5) 41-3 295-5 | 42-2 |
23 0 03-35 || 543-7} 53-1 278-6) 53-5 H (i) 07-34 || 554-1} 41-7 302-8 | 42-5 |
6 0 0 08-08 || 545-6} 53-1 277-3 | 53-5 W 8 0 || 25 04-53 || 558-5} 41-9 302-7 | 42-8 |
A) 07-67 || 541-7| 53-2 283-2 | 53-7 H 10 O || 24 53-64); 544-4} 42-2 309-9} 43-1 |
2*'0 07-74 || 549-8] 53-1 || 282-6| 53-8 || W | i}
4 0 05-79 || 553-2| 53-4 287-7 | 54-2 H 18 0 || 25 02-96 || 558-0) 42-8 279-6| 43-6 | :
a AU 04-22 || 558-5) 53-6 286-9 | 54-1 WwW 20 O 01-75 || 554-5] 43-0 284-3 | 43-7 |
ee. 04-95 || 560-2) 53-6 290-7 | 54-0 WwW 22.0 01-73 || 545-8 | 43-2 287-6} 44.0 |
8 0 03-63 || 557-5 | 53-4 || 291-7) 53-6 WwW 23 0 03-74 || 542-2) 43-3 286-2
OR 0) 03-84 || 553-4} 52.9 286-9 | 52-9 W ile 070 05-96 || 544.5] 43.4 279-5
iy) 07-47 || 546-4| 43-7 275-5
18 0 || 25 00-50 || 557-4| 50.7 275-6 | 50-2 H 20 08-12 || 550-2] 43-9 || 271-9
20 0 02-22 || 553-8] 50-2 286-7 | 49-7 H 4 0 06-59 || 556-1} 44-3 278-2
22 0 01-18 || 547-0} 49-8 293-6 | 49-5 WwW 6 0 05-08 || 558-7 | 44-6 276-7
23 0 03-48 ||.539-9| 49.7 296-6 | 49-5 H a 230 04-42 || 560-1} 44-8 275-3
Go On) 0) 06:50 || 540-8} 49.6 294-8 | 49-5 WwW 8 0 03-61 || 560-0| 44-9 275-9
ihe (0) 08-61 |! 544-5| 49.6 296-5 | 49-7 H | 10 O 03-14 || 561-0! 45-1 273-4
DECLINATION. Magnet untouched, April 144, 1846—May 1847. Z
BrritarR. Observed 2™ after the Declination, s=0-000135. BALANCE. Observed 3™ after the Declination, s=0-0000
+ Extra Observations made.
DAILY OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 12—23, 1846. 319
BIFILAR. BALANCE. ‘ | Gottingen BIFILAR. BALANCE. - 3
eA ee a teal Ce peleam Lame || DECLINA~ || > > 88
TION. Cor- {Thermo-|| Cor- |Thermo-] ‘= ] of Declina- TION, Cor- |Thermo-|| Cor- |Thermo-|| $ *2
rected. | meter. || rected. | meter. 5 ] tion Obs. rected. | meter. || rected. | meter. 5 x
m. S é Se. Div. 2 Mic. Diy. ei d. 11) Saas >) 4 Se. Div. cc Mie. Div. 2
0 || 25 02-17 |) 557-6} 45.4 271-6 | 46-1 H |} 18 2 0O/| 25 08-16 |) 545-2} 48-6 300-9] 49-7 H
0 01-85 || 558-5} 45-4 271-3 46-1 H 4 0 09-33 || 536-3] 49-2 331-4} 50-1 WwW
0 01-68 | 550-6] 45-6 276-6 | 46-2 WwW 6 0 04-73 || 550-9| 49-6 318-0] 50-2 H
0 03-14 || 546-9) 45-7 273-3 | 46-2 H Tha O) 03-35 || 548-6} 49-6 312-5} 50-5 H
0 0} 05-80 || 545-2} 45.7 268-3 | 46-3 W 8 0 02-69 || 549-0| 49-7 311-1} 50-5 H
Z 0°| 07-81 || 549-2] 45.7 269-6 | 46-5 H | 10 0 08-18 || 549-5 | 49-7 311-2} 50-4 Jal
2 0} 08-70 || 554-6] 45-9 268-1) 46-5 WwW |
4 0 07-00 || 557-6 | 46-0 272-2) 46-8 H 18 0 | 25 03-04] 549-4) 48-5 307-5 | 48-5 H
so 0 06-09 || 562-9) 46-3 268-1} 47-2 H 20 O 02-89 || 546-7} 48.0 307-8 | 48-3 H
7 0! | 06-39 || 559-2 | 46-5 270-4} 47-2 H 22) 0 03-30 | 543-2} 47-9 318-0} 48-0 W
8 O | 25 05-96 || 558-5) 46-4 279-3 | 47-2 H 23 O 05-15 | 539-1] 47-8 320-3] 48-0 WwW
10 O | 24 59-26) 558-8) 46-7 291-1) 47-5 H £9) FOP 10 06-04} 540-0} 47-7 321-7) 48-1 W
1 0 06-91 | 546-7| 47-8 | 320-6] 48-5 || H
18 0 || 25 01-92) 557-7} 46-0 252-3] 46-5 H 2 10 06-17 | 548-9} 48-1 319-0} 49-0 W
20 0 02-67 || 557-2] 45-9 265-6| 46-2 H 4 0 04-05 552-3 | 49-0 309-5 | 49-7 H
22 0 05-25 || 546-0} 45-8 270-3} 46-1 ‘W 6 0 03-48 || 557-0} 49.3 305-6 | 49-8 WwW
23 0 06-29 || 537-0) 45-7 275-6 | 46-0 W 7 O 04-48 || 558-2) 49.4 300-2} 49-8 WwW
0 0 07-65 | 547-7 | 45-6 273-4 | 46-0 W 8 0 05-25 || 560-1] 49-2 299-1] 49.7 WwW
i 0 08-95 || 550-4] 45-5 275-3 | 46-0 WwW 10 O 01-81 || 552-7} 49-0 316-0 | 49-5 W
2 0 08-11 || 551-0 | 45-5 279-2) 46-0 W
4 0 06-06 || 553-3 | 45-4 284-5} 46-0 Jal 18 O || 25 02-45 || 555-2| 48.7 299-2} 49-0 WwW
6 0 03-90 || 556-5 | 45-3 278-4} 45-8 W 20 O 02-75 || 552-9} 48-6 297-4} 49-0 W
7 0 03-67 || 557-2 | 45-3 279-1} 45-8 WwW Pp (0) 02-89 || 548-0| 48-5 300-2} 49-0 H
8 O || 25 03.43 || 554-6] 45.2 280-6} 45-6 W PB (0) 03-74 || 548-2) 48-6 303-0] 49-1 W
10 O || 24 58-25) 551-6] 45-0 290-5 | 45-5 Wi20 0 O 08-99 || 549-2] 48-6 299-7) 49-0 H
1.0 13-63 || 547-5 | 48-6 304-0] 49-0 H
i8 0 || 25 02-62 ]} 557-1] 42.3 282-9} 42-4 W 2 0 07-76 || 555-6] 48-7 304-3 | 49-2 H
20 0 01-34 || 557-2] 41-9 285-2| 41-8 ‘W 4 0 06-43 || 563-7 | 49-0 318-8} 49-6 ‘W
22 0 01-41 | 550-0{ 41-5 288-0| 41-6 H 6 0 07-96 || 559-5 | 49-0 326-6| 49-6 W
ya 0 03-48 || 547-2] 41-4 282-1| 41-7 W c10 03-04 || 558-0] 49-1 334-4] 49-6 WwW
0 0 06-12 || 549-6 | 41.4 283-9 | 42-0 H 8 0 || 25 04-78] 551-9} 49-0 336-8] 49-5 WwW
0 07-38 || 551-3 | 41-7 284-5 | 42-4 H 10 O || 24 59-24 || 567-6] 49-1 294-2) 49-6 W
12 0 07-29 || 552-2} 42-1 287-1} 43-5 H
4 0 06-23 || 555-9 | 42-8 278-3 | 43-9 W 18 O || 25 02-84] 551-2] 48-3 291-9} 48-6 W
16 0 04-41 || 557-3 | 43-2 273-3 | 44-2 H 20 0 01-75 || 552-4) 48-1 298-8 | 48-1 W
a 0 03-43 | 558-5 | 43.4 271-8) 44-2 H 22-0 00-57 || 548-4} 47-7 297-3) 47-5 H
8 0 03-02 | 559-7| 43.4 270-8 | 44-2 ET 230 05-35 || 546-6] 47-6 293-8] 47-5 W
10 O | 25 00-33 | 556-8} 43-3 280-2} 44-0 EE 2 30: 50 05-05 || 547-6] 47-5 291-5} 47-7 H
1 O 06-06 || 549-3] 47-6 300-6 | 48-2 H
18 O || 24 59-26} 563-8] 42.6 253-5 | 43.2 W 2) 10 04-98 || 547-7 | 47-8 302-7 | 48-5 H
20 0 || 25 01-68 || 561-2} 42.7 258-0 | 43-3 W 4 0 07-34 || 545-0} 48-1 316-0} 48-7 W
. 2 0 02-32 | 553-1) 42-8 269-7 | 43-5 H 6 0 04-04 || 559-3 | 48-2 309-9 | 48-7 H
; 3 0 03-52 || 550-6] 43-0 270-0} 43-8 WwW 7 O 04-91 || 555-2] 48-0 312-0] 48-7 H
7\0 0 05-92 || 548-2] 43-2 270-5 | 44-2 H 8 0 03-35 || 555-2} 48-0 308-9| 48-5 H
: 1p 0 09-79 || 553-7] 43-6 270-7 | 44-7 H 10 O 00-18 || 559-9} 47-8 292-8] 48-0 lal
’ 2 0 10-09 || 553-5] 44.0 277-4)| 45-0 H |
4 0 08-31 |) 557-2] 44.7 273:0| 45-8 W |} 22 18 O | 25 02-08 || 553-4] 42-8 289-6 | 42-7 W
16— ot 13-30) 564-3] 45-5 287-3 | 46-5 H 20 O 02-39 || 556-3 | 42-4 285-2) 42-2 W
|7 Ot 05-79 || 652-7] 46-0 823-4 | 47-0 H 22 O 01-90 || 550-2] 42-0 285-6} 41-7 H
beet 08-11 | 671-0} 46-7 796-8 | 48:3 H Pay KG) 04-31 || 546-8} 41-7 271-2} 41-6 W
0° 0 00-74 || 539-5 | 47-8 466-0 | 49-5 EL 23) FOO 05-11 || 544-9} 41-6 269-5 | 41-7 H
| P30 06-26 || 550-6] 41-5 | 273-2] 41-7 || H
18 15 || 25 06-26 |) 547-8] 48-1 252-7 | 48-8 W 2° 10 06-16 || 554-5 | 41-7 279-7 | 42-0 H
\ 0 04-42 || 549-0] 47-9 252-9 | 48-5 W 4 0 04-71 || 555-9} 41-9 285-1] 42-4 W
, =O 06-76 || 534-6 | 47-7 283-6 | 48-2 ial 6 0 04-01 || 558-4] 42-0 287-3 | 43-0 H
4 0 08-88 || 518-8 | 47-6 305-4} 48-3 W a 0 03-38 || 560-0) 42-3 282-2] 43.2 H
| 0 0 06-56 || 538-1] 47-8 298-5 | 48-7 H 8 0 03-57 || 557-6} 42-6 283-2) 43-7 H
7 : 70 09-19 | 542-8) 48-1 298-8 | 49.2 H 10770 02-46 || 556-3! 42-8 279-4| 43-7 H
' DECLINATION. Magnet untouched, April 14, 1846—May 1847.
{ lrinar. Observed 2™ after the Declination, s—0-:000135. BALANCE. Observed 3” after the Declination, k=0-000010.
=
+ Extra Observations made.
320 DaILy OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 23—DECEMBER 3, 1846.
Gottingen BIFILAR. BALANCE. ae Gottingen BIFILaR. | BALANCE. ]
Mean Time || DEcLINa- p=} Mean Time || Decurna- -||
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 3 ‘2 | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|)
tion Obs. rected. | meter: || rected. | meter. ||S'~ | tion Obs. rected. | meter. || rected. | meter, ||;
ds) (hs) im. $ 4 Se. Div. 2 Mic. Div. a ; aie ih: ant 2; < Se. Div. ‘2 Mie. Div. Oe
23 18 0 || 25 02-75)| 557-3 | 43-3 273-5 | 44-1 W ] 28 2 O || 25 07-07 || 550-0) 37-6 293-5 | 37-2
20 O 02-10 || 557-1) 43-8 276-7 | 44-7 W 4 0 || 25 05-02)) 552-7| 37-4 290-2} 37-2
22 O 01-48 || 548-2 | 44-2 283-5 | 45-4 H 6 0 || 24 59-63 |) 566-3} 37-2 303-7 | 37-3
23. 0 04-10 || 546-1 | 44-0 277-1 | 45-8 WwW 7 O || 24 56-16] 543-2) 37.2 284-3 | 37-3
24 0 0 05-58 || 548-2] 45-2 273-7 | 46-2 H 8 0 || 24 57-78 || 545-2) 37-2 304-8 | 37-3
ie <0) 07-64 || 550-1] 45-7 268-1 | 47-0 H 10 O |] 25 03-81 || 547-8| 37-0 294:0| 37-2
2 0 05-80 || 552-1 | 46-2 272-0 | 47-6 H
4 0 04-17 || 559-5 | 47-4 283-3 | 48-5 W {| 29 18 O || 25 02-59|) 559-9} 33.8 246-1) 34-0
6 0 03-38 || 560-0} 48-0 285-1 | 49-0 W 20 O 07-67 || 555-4| 33-7 247-3| 34-0
yf 03-23 || 558-3| 48-0 285-0} 49-0 H 22 12 03-13 || 546-1| 33-6 266-3 | 33.7
8.0 02-70 || 558-5 | 47-9 282-0} 48-7 H 23. 0 04-88 || 548-5 | 33-7 274-4 | 34.2
10 O 00-77 || 560-2| 47-6 274-3 | 48-0 H ik30' YO. 0 04-34 || 539-0} 33-9 276-9| 34-6
t 0 08-48 || 546-8 | 34-2 287-6 | 35-0
18 0 || 25 02-55 || 557-8! 45-6 292-5 | 45.6 W 2 0 07-62 || 556-0) 34-6 288-2| 35.4 |
20 O 02-19 || 556-7 | 45-2 299-4} 45.3 W 4 0 02-01 || 553-6} 35-2 334-0} 36-0 ||
22 0 02-79 || 549-1) 45-0 293-8 | 45-2 H 6 0 02-20 || 559-3 | 35-5 297-5 | 36-2
23 10 04-28 || 546-5 | 44-9 271-4} 45-1 W Tao 01-34 || 557-1] 35-4 291-6| 36-2
25 0 0 05-89 || 548-0) 44-8 273-4| 45-1 H 8 0 01-48 || 554-8} 35-4 290-5 | 36-0
1 0 06-46 || 549-6 | 44-7 274-8 | 45-2 H 10 O 01-75 || 554-1| 35-0 284-3 | 35-5
ra (0) 06-83 || 553-9] 44-8 277-7 | 45-2 H
4 0 05-18 || 558-6 | 44-9 279-5 | 45-4 Ww 18 0 || 25 02-94] 556-3) 34.3 267-5 | 34-8 |
6 0 04-12 || 557-2} 44-9 287-0 | 45-5 H 20 O 08-06 || 555-3| 34-4 261-2| 35-2 |
70 03-63 || 558-2 | 44-9 284-2) 45-5 sl 22. 0 03-02 || 552-4| 34-7 267-5 | 35-5
Sd 03-27 || 558-0| 45-0 285-1 | 45-5 H 235 10 03-38 || 550-0} 35-0 269-9 | 35-8 |
10 O 62-03 || 559-5 | 45-0 278-1| 45-6 H i "050 05-29 || 554-1] 35-3 275-1) 36-3 |
1 0 06-39 || 556-3 | 35-8 274-1 | 37-0
18 0 || 25 01-95]] 559-7| 45-2 271-1) 45-7 W 240 06-32 || 557-4| 36-6 274-7 | 37-9 ||
20 O 01-99 || 560-2) 45-1 269-9 | 45-5 W 4 0 04-24 || 559-5 | 37-9 288-2} 39-3 ||
2210 01-98 || 548-8 | 45-0 269-5 | 45-5 H 6 O |} 25 01-95]) 562-1] 38-7 F
23 «20 04-58 || 559-5 | 45-0 262-2) 45-5 W 7 O || 24 53-04} 576-4| 38-8
26 0 0 06-12 || 560-4 | 45-0 258-3 | 45-5 H 8 0 | 25 01-51 || 550-0} 38-9
i (0) 06-30 || 561-9 | 45-0 255-3 | 45-6 W 10 O 02-01 || 558-3} 38-7
2 0 06-83 || 566-5 | 45-1 262-3 | 45-7 Et
4 Ot 08-25 || 548-1 | 45-2 470-4 45-9 WwW 18 O || 25 05-15 }) 553-8] 36-1
6 Ot 11-77 || 596-2| 45-6 557-1 | 46-5 H 20 O 03-81 || 556-3) 35-2
7 Ot 25 10-09 || 597-4| 45-8 832-7 | 46-2 ie. 22 0 03-47 || 546-8} 34-4
8 0 || 24 54-55 || 535-6] 46-0 460-9 | 46-5 H 2a 0 06-01 || 532-8} 34-0
10 ot 24 45-81 || 575-3 46-0 131-0] 46-7 H 2 0.0 06-83 || 546-5 | 33-7
i 0 08-05 || 550-1] 33-4
18 0 || 25 03-37 || 553-7 | 45-6 273-2) 45-9 W 2 0 09-49 || 547-3) 33.3
20 ot 10-90 || 538-3 | 45-3 279-6 | 45-7 W 4 0 05-42 || 556-9} 33-6
22 0 08-18 || 553-2 | 45-2 303-5) 45-5 H 6 0 02-66 || 558-2} 33-7
Papy 0) 05-27 || 547-4 | 45.2 305-0) 45-5 W ¢ © 03-57 || 556-2} 33-7
27 0 O 08-99 || 549-2) 45-1 311-7| 45-4 H S10) 01-41 || 573-7| 33-4
1K) 10-00 || 539-2] 45-1 324-1) 45-3 H 10 0O 02-01 || 553-1] 32-8
2 0 09-26 || 540-7 | 45-0 353-0 | 45-2 H
4 0 08-23 || 557-3 | 44-8 332-8 | 44-9 WwW 18 O || 25 02-48 }) 556-7] 29-3
6 0 || 25 02-94 || 550-6) 44-3 333-1) 44-4 H 20 O 02-79 || 555-3 | 28-6 }
7 O || 24 59-19|| 542-0} 44-0 335-8 | 44-0 H 22 0 02-22 || 549-6} 28-0 :
8 0O | 24 58-72) 549-6} 43-8 322-0) 43-7 H 230.0 02-84 || 548-8] 27-9 .
10 O | 25 02-12) 552-8} 43.2 298-0 | 43-2 H 3 100 05-72 || 550-4] 28-0 )
E20 06-56 || 551-4] 28-2
18 0 | 25 03-16|| 554-5} 40-6 238-5 | 40-0 W I BA 10) 07-67 || 553-1| 28-8
20 0 02-64 || 548-5 | 39-7 264-4 | 38-8 Ww 4 0 05-09 || 559-2} 30-0
22.0 06-79 || 526-7 | 38-7 289-7 | 37-7 H 60 03-40 || 559-8 | 31-0
23 «0 05-60 || 538-9 | 38-3 299-3] 37-5 W «20 03-00 || 559-3 | 31-2
28 0 0 07-34 || 549-2| 38-1 293-0| 37-2 H 8 0 03-00 | 558-5 | 31-7
1 0 08-48 || 551-7 | 37-8 289-8 | 37-2 H 10 O 00-33 || 556-9 | 32-0
DECLINATION. Magnet untouched, April 144, 1846—May 1847.
BIFILAR. Observed 2™ after the Declination, s=0-000135. BALANCE. Observed 3” after the Declination, k=0° 00001 10.
+ Extra Observations made.
Nov. 274 2h. The declinometer was noted 25° 02’:52, but from the steadiness of the instruments during the day it was believ
the reading was 10 scale divisions in error ; it has been altered accordingly. y,
SHYIMARNHOHNOH SHOIBDABMHO
SOWHAANWHEKOCHUNSH
—s
j
oooocoococecoo ooooocoocoocoodcno
cooc co co co soos So
ocoooocco
ecooooeooooooos
DAILY OBSERVATIONS OF MAGNETOMETERS, DECEMBER 3—14, 1846.
DECLINA-
TION.
25 00-47
03-70
04-51
05-43
06-79
07-18
09.24
08-93
11-95
03-81
02-46
01-68
25 02-91
03:37
03-02
02-46
03-84
05-49
06-06
06-46
04-71
03-13
02-99
02-08
25 02-55
02-35
02.23
03-90
04-84
05-05
05-52
04-35
04-17
02-66
02-89
02-12
02-05
02-57
02-70
03-63
04-71
05-40
06-32
05-03
03-60
03-20
02-43
01-72
25 01-36
02-28
02.28
03-38
04-58
05-67 1
BIFILAR. BALANCE.
Cor- |Thermo-|} Cor- |Thermo-
rected. | meter. || rected. | meter.
Se. Div. @ Mice. Div. o
561-1] 32-6 263-0} 33-3
564-1} 32-4 242-8] 32.9
555-7 | 32-2 258:3| 32-5
554-1} 32-0 259-4} 32-5
545-8] 32-0 269-3} 32-8
549-0} 32-2 272-4) 33-2
553-7 | 32-5 277-2} 33-5
554-5 | 33-3 291-6] 34-3
552-5 | 33-8 322-2) 34-7
556-7 | 33-9 327-7| 34:8
548-7 | 33-9 331-4] 34-5
556-7 | 33-3 294-7] 33-8
563-4] 31-7 272-6 | 31-9
563-5 | 31-8 271-8} 32-3
556-1] 32-1 273-8 | 32-8
552-7 | 32-4 273-2| 33-3
551-6 | 32-8 270-9 | 33-8
554:0| 33-4 271-2} 34-5
557-1] 34-0 271-0] 35-2
557-9| 35-1 278-3| 36-7
559-9} 36-3 275-3| 37-6
560-9| 36-6 272-8) 37-7
561-6] 36-8 272-4) 38-0
554-3] 37-0 286-1} 38-2
561-8| 36-4 269-5 | 36-8
561-7 | 36-3 267-5| 36-7
556-3 | 36-4 266-5 | 36-7
554-7 | 36-4 270-6] 36-9
555-8] 36-6 270-4 | 37-2
553:3| 36-8 275-4) 37-5
557:2| 37-0 275-8} 38-0
561:0| 37-7 274:0| 38-5
561-9| 38-0 274:9| 38-8
558-3] 38-0 277-2| 39-1
562-3 | 38-2 273-3| 39-2
561-3 | 38-3 270-5 | 39-2
561-0] 37-6 267-0} 38-0
560-9 | 37-5 266-8 | 37-9
556-6 | 37-4 267-7 | 37-9
554-7 | 37-6 269-7! 38-0
554-1 | 37-7 269-4} 38-2
554-0] 37-7 266-4] 38-5
559-7 | 38-0 265-2) 38-8
561-7} 38-7 269-7| 39-7
563-5 | 39.2 267-6 | 40-3
564-8} 39-5 266-9} 40-5
564-3 | 39-7 266-7} 40-8
564-3} 40-0 267-5 | 41-2
564-9} 40-0 253-8| 40-8
565-6 | 40-1 255-9| 40-8
559-1} 40-2 261-1} 40-8
557-4] 40-2 266-5 | 40-8
553-2| 40-2 266-9| 40-8
553-8! 40-3 266-1! 41-2
* if Gottingen
P= | Mean Time
a oi of Declina-
S| tion Obs.
oe | Sek peas
WwW OF 2550
W 4 0
H 6 0
W 0
H 8 0
H 10 O
H
W 18 0
H 20 O
H 22 0
H 23 0
1eE 3) MON O50)
1 0
W 2) 10
WwW 4 0
H 6 0
WwW “ZO
H 8 0
H 10 O
H
WwW 1g 0
H 205-0
H 22
H 23. (0
Jel J) il @
ih @
W 2 0
WwW 4 0
H 6 0
WwW a Ww
H 8 0
H iO ©
H
W 18 0
H 20 0
H 22 0
H 23 0
Jal | IO ©
if 0)
W 2 0
WwW 4 0
H 6 0
WwW io
H 8 0
H 10 O
1gL
Wwii3i18 0
H 20 O
| 18t 22 0
H 23 ~0
asl || zy @ @)
i @
| W 210
W 4 0
H 6 0
WwW 7 O
H 8 0
H 10 0
DECLINA-
TION.
25
25
24
25
BIFILAR. BALANCE,
Cor- |Thermo-|| Cor- |Thermo-
rected, | meter. || rected. | meter.
Se. Diy. Ms Mie. Div. bd
557-4| 40-6 263-8} 41-7
561-7 | 41-4 270-8 | 42-6
565-0} 41-8 273-2) 42-8
564-9 | 41-9 274-1} 42-9
561-6 | 41-8 278-8} 42-7
560-5 | 41-6 302-2) 42-4
561-0} 41-5 244-3 | 42.2
558-8 | 41-7 259-6! 42-5
552-1) 41-8 271-9} 42-5
548-5 | 41-9 272-2) 42-5
552-6 | 41-8 270-2) 42-3
551-6| 41-7 273-5 | 42-2
551-7 | 41-6 266-4 42-0
555-7 | 41-2 281-7| 41-4
550-9} 40-5 304-1) 40-3
557-0} 40-0 286-3| 39-7
557-1] 39-7 290-8} 39-0
547-7 | 38-4 277-7| 37-5
561-0} 34-5 235-5! 33-5
556:-4| 33-8 249-5} 32-9
550-4 | 33-2 255-8} 32-5
548-5 | 32-9 260-0} 32-2
552-0| 32-7 263-1} 32-2
547-2| 32-6 267-5 | 32-3
551-8 | 32-4 268-0} 32-2
554-7 | 32-4 285-0| 32-4
554-0 | 32-3 286-2} 32-5
555-8 | 32-2 283-5} 32-2
555-3 | 32-0 285-7 | 32-2
550-5 | 31-8 281-2} 31-9
556-7 | 31-9 253-7 | 32-1
559-1} 31-9 250-2 | 32-4
557-4] 32-0 251-6) 32-5
553-0] 32-1 257-1} 32-6
552-0 | 32-2 260-1{| 32-7
549-2] 32-2 264-9 | 33-0
558-0] 32-5 259-1] 33-2
557:0| 32-8 264-0} 33-4
560-9 | 32-8 262-0} 33-3
561-9] 32-7 264-2] 33-2
561-1] 32-6 267-3) 33-1
553-2 | 32-3 275-1| 32-6
537-0] 28-0 261-4) 27-7
538-2 | 27-5 259-1| 27-4
555-3 | 27-0 256-7 | 26-8
554-3 | 27-0 258-3 | 26-8
552-7 | 27-0 259-3 | 26-8
554-2 | 27-1 260-3 | 27-5
556-7 | 27-4 258-4 | 27-9
560-8 | 28-2 257-6} 28-5
565-4| 28-7 256-6 | 29-3
560-7 | 28-8 257-9 | 29-4
559-5 | 28-9 263-0 | 29-4
598-0! 28-9 29.4
279-9 |
eo
bo
—
Observer’s
Tuitial.
a
a
DECLINATION. Magnet untouched, April 144 1846—May 1847.
Observed 3™ after the Declination, s=0:000010.
G. AND MET. oss. 1846.
ae
gitar. Observed 2™ after the Declination, k=0-000135.
BALANCE,
S4gtetgnsth seeddeenshes teeters Senses po i tt
DAILY OBSERVATIONS OF MAGNETOMETERS,
Observer’s
Initial.
445445 445544444444 Seeenehenenh aegehekgremm gemma sme
Gottingen |
Mean Time
of Declina-
tion Obs.
_—————
20
21
22
oooocoescocoocoeo
23
=
ooooqcocooecqces¢
—-
—
qgoeoococececsa
,Sooooos
ceoooocococece
DECLINA-
TION.
25
25
BIFILAR.
Cor- |Thermo-
rected. | meter.
Sc. Div. >
558-6} 37-8
562-0} 38-7
563-2} 39-6
564-6| 39-9
563-9] 40-2
560-8} 40-9
41-3
41-1
41-0
560-7
562.4
560-8
558-7
560-9
599.4
561-5
563-8
563-5
564-0
563-7
562-1
548-6
559-6
553-5
558-2
557-6
558-4
548-0
556-7
555-7
DECEMBER 14—24, 1846.
BALANCE. —
Cor-
rected. | meter. |
Mic. Div.
266-5
271-4
269-3
268-0
264-9
276-3
265-8
261-6
258-1
261-9
265-2
269-0
269-2
273-5
273-6
271-0
270-1
262-8
263-8
259-8
250-6
251-4
252-7
249-6
253-2
259-1
260-1
260-3
259-5
262-5
249-5
249-1
247-8
252-1
259-8
258-4
262-8
274-6
340-5
324-0
393-3
272-1
227-8
253-7
257-9
263-6
268-7
269-5
275.4
281-7
286-0
305-7
289-7
276-8
322
Gottingen BIFILAR. BALANCE.
Mean Time || DECLINA-
of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-
tion Obs. rected. | meter. || rected. | meter.
a h om ° , Sc. Div. P Mic. Div. 2
14 18 0O || 25 01-61 || 557-5} 28-7 272-1! 29.3
20 O 02-87 | 547-3] 28-8 259-5 | 29-5
22 0 05-42 || 555-2] 28-9 260-3 | 29-5
23 O 05-42] 551-5| 29-0 260-0 | 29-5
1: 1010 05-49 || 549-9} 29-2 263-5 | 29-8
130 06:63 || 552-9| 29.7 263-0} 30-5
2X0 06-79 || 557-6| 30-0 | 270-3] 31-0
4 9 04-84 | 559-4] 30-7 278-4) 31-5
6 0 03-30 || 560-8} 30-8 || 273-5) 31-5
7 O 03-41 || 560-4] 30-7 273-4| 31-5
8 0 03-02 || 559-5| 30-7 272-9) 31-5
10 0O 01-81 || 558-1] 30-9 274-2| 31-6
18 0 || 25 02-42] 558-6] 30-7 267-9 | 31-7
20 O 02-50 | 557-2} 30-6 266-3 | 31-2
22— 0 02-82 | 556-8} 30-5 265-3 | 30-8
23 0 04-14 || 555-1] 30-5 271-2} 30-9
16 0 0 05-02 || 554-4| 30-6 269-8 | 30-9
14°0 05-45 || 554-8] 30-7 267-0} 31-2
2-0 05-92 || 557-2| 31-0 271-2) 31-8
4 0 04-84 || 570-5} 31-8 277-0 | 33-0
6 0 03-70 || 561-0} 32-3 267-9 | 33-2
7 O 03-30 || 561-5} 32-5 267-2) 33-5
8 0 | 03-55 || 562-9| 32-7 266-5 | 33-6
10 O 03-16 || 559-5| 32-9 269-0 | 33-7
18 0 || 25 02.20} 558-3| 32-2 262-3 | 32-7
20 O 01-72 || 557-8] 31-9 263-4] 32-2
2210 02-33 || 554-2] 31-5 269-8 | 31-5
Za5 O 04.37 || 552-5] 31-4 267-7| 31-5
iy TO. 0 05-60 || 553-9] 31-3 266-6 | 31-7
i) 06-63 || 557-4] 31-4 265-8 | 32-1
2 0 06-64 || 560-2) 31-7 270-8 | 32-4
4 0 04-34 || 561-4} 32-3 273-6 | 33-5
6 0 03-54 || 564-5) 32-7 266-2 | 33-5
fo) 02-80 || 563-5) 32-8 265-7 | 33-5
8 0 02-89 || 564-1] 32.7 263-7 | 33-3
10 O 03-94 || 557-7| 32-5 271-5) 32-9
18 0 | 25 02-55] 561-0] 29-9 || 262-7| 29.3
20 O 01:58 || 559-5} 28-9 258-3 | 28-2
220 03-94 || 555-3} 28-2 256-4 | 27-5
23 6 Ohl 03-48 || 552-7| 27-9 257-3 | 27-4
18 0 0 06-81 || 556-3| 27-7 255-4 | 27.4
it 0) 07-94) 557-7| 27-7 259-4 | 27-8
20) 06-06 || 557-5| 27-9 266-1 | 28-5
4 0 04-71 || 561-6} 29-0 270:0| 29-8
6 O 05-55 || 563-5} 30-1 264-6 | 31-0
yin!) 02-96 || 555-7| 30-7 269-0} 31-7
8 0 || 25 03-65] 562-6} 31-2 264-7 | 32-5
10 O || 24 58-18] 550-4} 32-3 278:5 | 33-5
18 0 || 25 02-67 || 561-5) 36-0 263-1} 37-1
20 O 02-26 || 561-4} 36-5 258-7 | 37-5
22 0 02-13 || 558-5} 36-9 258-4| 37-9
23 0 03-21 | 557-1| 37-0 || 258-6] 38-1
19 700 04-17 || 555-0} 37-2 258-8} 38-3
1 0 05-72! 557-3 |. 37-5 261-31 38-6
DECLINATION.
BirinaR. Observed 2™ after the Declination, s=0:000135.
+ Extra Observations made.
Magnet untouched, April 144, 1846—May 1847. Be
BALANCE. Observed 5™ after the Declination, k=0-000010.
Therm 0-
°
33-5 |
32.9
3 DAILY OBSERVATIONS OF MAGNETOMETERS, DECEMBER 24—31]1, 1846. 323
sttingen BIFILAR. BALANCE. ae Gottingen BIFILAR. BALANCE. ae
an Time || DEctina- |__|", £. 8 | Mean Time || Dectina- ||— ae
Declina- TION. Cor- |Thermo-|| Cor- |Thermo-| 2g | of Declina- TION. Cor- |Thermo-| Cor- |Thermo-|| £ ‘2
on Obs. rected. |} meter. || rected. | meter. aie tion Obs. rected. | meter. || rected. | meter. ae
mi. mM. 3 £ Se. Diy. o Mic. Diy. 2 . m. 2 y Se. Div. G Mie. Div. a
18 0 || 25 01-43) 565-4! 31-0 || 266-1] 30-7 || H. | 28 18 O || 25 02-75) 562-3| 37-5 || 241-0) 38-6 H
+ 20 O 07-69 || 558-2) 30-7 || 270-2| 30-7 H 20 O 03-23 || 560-7 | 37-6 || 243.2] 38.5 Jal
22 0 04-51 || 559-9] 30-7 || 249-9| 30.7 WwW 22 0 | 02-91 || 556-0} 37-6 || 248-8] 38-2 | W
23 0 04-78 || 555-3} 30-7 || 253-6] 30-7 H 23 0 01-78 || 553-9 | 37-6 || 250-3] 38-2 H
0 0 05-82 || 556-9} 30-6 || 260-9} 30-7 | W729 0 0° 03-95 || 554-2) 37-7 || 248-5] 38-8 W
i 3 07-20 || 554-8} 30-7 | 266-4} 31-0 Jal tl Qs) 04-21 || 556-3] 38-2 || 242.8] 39.5 H
2 0 05-87 || 552-9} 30-9 | 272-8] 31-1 W ry 05-55 || 568-1] 38-6 || 240-0} 39.8 W
4 0 02-96 | 542-9} 31-2 || 290-4] 31-7 H ne 03-90 || 559-4 | 39-2 || 241-8] 40-5 H
6 0 02:93 || 556-4] 31-3 |) 283-0] 31-8 | W 6 0] 02-25 || 560-5 | 39-5 241-2} 40-5 WwW
7 O || 25 02-39] 561-0} 31-3 || 282-7) 31-9 H 7 0 || 25 03-02|| 560-0! 39-6 || 241-0| 40-6 H
8 0 || 24 58-08]| 559-8) 31-3 | 278-0} 32-0 H 8 0 || 24 56-03 ]) 573-4) 39-7 || 232.9) 40.7 H
10 0 | 25 02-46] 553-8] 31-3 | 269-4] 31-8 | W 10 0 | 25 01-66 || 559-1} 39-8 || 236-6) 40.7 Ww
18 0O | 25 02-01 || 556-8} 30-7 || 255-6} 31-1 H 18 0 || 25 01-78}| 561-9} 38-8 | 231-0] 39.2 H
20 0 01-75 || 554-9} 30-4 || 262-4) 30-7 H 20 O 01-34 |) 558-3 | 38-5 | 234-7) 38-7 H
22 0 04-37 || 550-1} 30-3 269-6 | 30-6 || W 22 0 | 01-97 || 555-9 | 38-1 239-9) 38-3 WwW
23 0 04-31 || 551-2) 30-4 || 272-1] 30-7 H 23 O 03-30 || 545-3) 38-0 || 242-6] 38-2 H
0 0 07-79 || 552-1} 30-5 || 268-8} 31-0 Wi 1730) 0) 07) 05-00 || 557:0| 37-9 || 245-8} 38-0 || W
1) 0 08-01 || 552-5] 30-8 || 269-8} 31-8 H 1 O 05-13 || 556-5 | 37-8 || 244.4] 38.2 H
2 0 || 25 06-66) 556-1] 31-4 || 277-7| 32-6 || W 2 0 05-43 || 558-4) 37-9 || 243-3] 38-4 W
4 0 | 24 59-50 || 552-5) 33-0 || 303-1} 34-5 H 4 0 03-14 || 560-7 | 38-6 || 250-0] 39-5 H
6 0 | 25 04-46] 559-1} 34-2 || 277-4] 35-3 || W 6 0 02-35 || 558-9} 39.2 || 244-8] 40-1 ‘W
7 0 02-79 || 558-6] 34-5 || 272-1) 35-5 || W fa) 01-83 || 557-7 | 39-3 245-2} 40-1 WwW
3 0 01-54 |) 557-2| 34-6 || 275-8} 35-5 WwW 8 0 01-92 || 560-5| 39-4 || 245-1] 40-1 WwW
10 0 00-65 || 555-5 | 34-5 271-5 | 35-2 || W 10 O 00-94 || 560-5) 39-4 || 243-5} 40-1 WwW
18 O | 25 02-13] 559-5| 30-8 || 261-1| 30-8 H 18 O || 25 01-98 ]} 562-8} 39.5 || 235-4] 40-2 H
20 0 02-99 | 560-3} 30-8 || 269-1} 31-7 H 20 O 01-68 || 561-7 | 39-5 || 253-8} 40-3 H
22 0 03-57 || 555-9] 31-5 || 273-8) 32-3 || W 22 0 01-78 || 559-3 | 39-7 || 251-5} 40.4 WwW
23 0 04-34 | 551-4} 31-8 || 276-7| 32-8 H 23 0 02-61 |) 558-5 | 39-8 || 253-0} 40-5 H
0 0 06-19 || 555-7| 32-3 || 275-2) 33-3 || Wf 31 0 O 03-27 || 558-9} 39-9 || 253-7] 40.7 WwW
1 0 06-63 | 557-0} 32-8 || 268-5) 34.2 H 1 0 04-07 || 557-8 | 40-1 254-3) 41-0 H
| 2 06-29 || 557-5 | 33-6 || 265-5| 34-8 || W 2 O 05-33 || 560-8 | 40-4 | 253-0; 41-2 || H
14 O | 25 04-64] 558-5| 35-0 || 271-9| 36.5 | W 4 2 03-30 || 560-7 | 41-0 || 251-2] 42.2 H
6 0 | 24 55-78) 561-8} 36-0 || 268-2] 37-2 || W 607) 02-46 || 563-1] 41-6 || 244-1] 42.5 W
17 O | 25 01-85 || 562-0) 36-4 || 261-6) 37-6 || W ww 01-88 || 563-3} 41-8 || 231-8} 43-0 H
1 8 O | 24 55-76) 567-1) 36-6 || 257-0| 37-7 || W 8 0O | 25 01-76)| 561-8) 42-0 || 241-0] 43-2 || H
10 O | 25 01-18 || 558-2) 36-9 || 249.2} 37-9 || W 10 0O |} 24 59-71 || 561-2)| 42.2 || 240-7) 43.1 W
il |
| DrEcLINATION. Magnet untouched, April 144, 1846—May 1847.
BIFILAR. Observed 2™ after the Declination, s=0°000135. BALANCE. Observed 3™ after the Declination, <=0-000010.
EXTRA OBSERVATIONS
MAGNETOMETERS.
MAKERSTOUN OBSERVATORY,
1846.
iG. AND MET. ops. 1846. 4n
=
326
Gott.
Mean
Time.
23 22
24 7
20
22
ExtTRA OBSERVATIONS OF MAGNETOMETERS, JANUARY 7—Marcu 14, 1846.
BIFILAR BALANCE
DECLINATION. Corrected. Corrected.
Min. S te Min. | Se. Diy. || Min. | Mic. Div.
0 | 25 00-28 2 | 532-4 S
30 | 24 55-22]| 32 | 545-1] 33
47 | 25 01-21 || 48 | 533-8 | 49
0 01-18 2 539-5 3)
15 06-14] 17 | 544-5 || 18
0 07-64 2 | 551-5 3
0 | 25 09-67 2 | 541-4 3
40 06-06 || 42 | 545-2 }) 43
0 03-65 2 | 545-2 3
0 | 25 26-37 2 | 559-1 3
10 26-47 | 12 | 562-6) 13
23 | 533-4 ]] 24
25 17-39 || 27 | 536-8 || 28
40 11-27 || 42 | 546-1 }| 43
0 | 25 19-86 2 | 537-9 3
0 | 24 49-54 2 | 512-8 3
5 43-52 7 | 520-3 8
10 39-19 || 12 | 525-9 || 13
15 34-82 || 17 | 535-7 || 18
20 36-99 || 22 | 543-2) 23
25 39-04 || 27 | 542-9]) 28
30 39-65 || 32 | 541-6 ]| 33
45 43-42 || 47 | 561-0]| 48
0 53-15 2 | 559-9 3
0 | 24 57-01 2 | 530-5 3
0 | 25 02-13 2 || ddan 3
0 | 25 08-85 2 | 556-8 3
5 10-75 7 | 554-4 8
15 12:38 || 17 | 550-2]| 18
20 12-82 || 22 | 552-7 || 23
30 12-35 || 32 | 552-6 3
0 11-22 2 | 552-0 3}
0 | 25 16-65 2 | 555-0 3)
2) 11-34 || 27 | 551-4 |) 28
0 10-74 2 | 539-8 3
0 | 24 49-48 2 | 533-8 3;
10 40-96 || 12 | 548-0]] 13
20 45-78 || 22 | 558-1 || 23
30 53-81 || 32 | 561-4 || 33
45 55:76 || 47 | 559-9 || 48
0 | 24 53-88 2 | 561-0 3
0 | 25 04-91 2 | 553-4 33
0 | 24 57-62 2 | 535-0 3
0 | 25 00-84 271 552:6 3)
10 01-14 }} 12 | 551-5 || 13
20 02-25 || 22 | 550-9 || 23
0 | 25 11-77 2 | 545-9 3
50 20-52 || 52 | 528-0|| 53
55 18-61 || 57 | 522-8]| 58
0 15-76 2 | 522-6 3
5 09-13 7 | 529.4 8
BIFILAR. k=0:000135.
Jan. 74 6%, Clock 105 fast, set right.
Jan. 244 7» 10m,
Feb. 274 19,
Gott. BIFILAR
Mean DECLINATION, Corrected. Smet
Time
days Min a ¢ Min. | Se. Div. || Min. | Mic. Div
25 10 || 10 | 25 06-53 || 12 | 531-6 || 13 | 421-0
35 | 25 06-70)! 37 | 532-1} 38 | 415-4
11 | 24 58-65|| 12 | 543-3]] 13 | 398.4
19 58-11 || 20 | 550-8 |} 21 | 408-7
7 0 | 25 07-37 2 | 546-4 3 | 418-0
30 02-96 || 32 | 539-41] 33 | 429.5
45 05-72 || 47 | 539-6 || 48 | 427-6
0 06-86 2 | 545-2 3 | 418-3
5 06-79 7 | 544-0 8 | 393-1
0 02-35 2 | 541-4 3 | 382-4
0 | 25 00-28 2 | 562-3 3 | 360-5
10 03-70 || 12 | 551-9} 13 | 360-9
20 05-72 || 22 | 547-3 || 23 | 362.9
0 | 24 58-55 2 | 549-8 3 | 370-8
0 | 25 00-40 2 | 551-7 3 | 369-2
0 03-82 2 | 593-8 3 | 364-5
0 | 25 22-96 2 | 541-4 3 | 363-2
5 21-09 7 | 543-5 8 | 364-2
15 19-59 || 17 | 545-0 || 18 | 371-5
35 17-29|| 37 | 546-0 ]} 38 | 385-8
0 21-09 2 | 545-2 3 | 402.8
25 21-59 || 27 | 538-7 || 28 | 423.6
46 25-78 || 47 | 559-4] 48 | 431-4
50 26-30 || 52 | 556-5 || 53 | 435-3
55 24-93 || 57 | 567-2]] 58 | 435-8
0 26-18 2 | 559-8 3 | 437-1
10 25-96 || 12 | 553-2]| 13 | 453-6
20 20-52 || 22 | 555-1 || 23 | 459-8
25 20-96 || 27 | 564-2] 28 | 458-3
35 22-53 || 37 | 563-0|| 38 | 462-5
50 21-79 || 52 | 563-9 || 53 | 482-7
0 19-41 2 | 556-7 3 | 489-0
10 20-52 || 12 | 545-7 || 13 | 500-8
15 17-80 || 17 | 552-7 || 18 | 500-8
25 19-95 || 27 | 558-1 || 28 | 490-9
35 19.98 || 37 | 576-2|| 38 | 495-0
45 19-84 || 47 | 577-4 || 48 | 532-7
50 18-18 || 52 | 578-5 || 53 | 551.4
55 15-98 || 57 | 576-7 || 58 | 579-7
0 15-24 2 | 561-8 3 | 575-5
5 02-94 7 | 559-5 8 | 564-4
10 04-39 || 12 | 565-0 || 13 | 584-9
15 00-87 || 17 | 587-8 || 18 | 615-4
20 05-47 || 22 | 635-3 || 23 | 670-4
24 | 626-6
25 | 25 06-12 || 26 | 628-11] 27 | 645-3
28 | 602-6|| 29 | 627-2
30 | 24 53-85 || 32 | 570-8]| 33 | 569-4
34 | 555-0
35 | 25 05-58 || 36 | 545-2
37 | 544-6|| 38 | 527-4
40 10-83 || 42 | 544-0]| 43 | 514-1
45 10-98 || 47 | 535-5 || 48 | 503-9
50 08-14)| 52 | 539-4|| 53 | 491-6
55 08-93 || 57 | 540-4 || 58 | 479-9
BALANCE. k=0-000010.
Clock 158 slow, set right.
Clock 368 slow, set right; rate 185; diminished. ?
Mar. 134 8h—104, The declination magnet was looked at occasionally ; there appeared to be little motion.
Gott. |
Mean
Time.
d. h.
March.
Wot ere
13 8
13 10
13 20
13
14
14
14
14 6
IFILAR
wrrected.
en
840-9
| 543-0
| 540-9
| 522-6
EXTRA OBSERVATIONS OF MAGNETOMETERS, Maron 13—26, 1846.
BALANCE
Corrected.
i. | Se. Div. || Min. | Mic. Div.
472-1
447-0
454-9
396-5
397-5
400-3
394-8
393-7
400-0
399-4
395-8
392-1
385-0
375-8
365-0
384-5
345-3
348-8
345-7
339-5
332-6
327-8
324-0
322-0
319-5
314-9
312-9
314-1
318-1
350-3
417-8
435-5
553-3
536-1
524-9
514-8
509-8
506-5
496-3
494-1
494-1
494-8
495-9
499-3
514-0
503-8
498-2
490-7
495-7
513-9
507-8
497-7
493-2
486-7
480-7
477-1
471.4
Gott.
Mean DECLINATION. eeecee
Time.
ds ihe} |vin’ |) ye ? Min. | Se. Div.
March.
14 6 10 | 25 09-49]} 12 | 536-1
20 08-34 || 22 | 539-4
30 05-45 || 32 | 547-3
40 08-59 || 42 | 552-6
50 | 25 05-50|) 52 | 539-4
14 7 O | 24 55-96 2 | 548-5
5 49-98 7 | 566-0
10 48-20 || 12 | 598-7
15 | 24 59-93)| 17 | 593-7
20 | 25 07-81 )| 22 | 567-0
25 | 25 06-23 || 27 | 551-8
30 | 25 05-52] 32 | 539.3
35 | 24 58-80]|| 37 | 550-6
45 | 25 01-88 || 47 | 546-8
55 | 24 55-51]| 57 | 545-0
14 8 0 | 24 56-03 2 | 543-4
10 | 24 59-37 || 12 | 528.4
35 | 25 00-81 || 37 | 542-0
14 10 0 | 25 08-88 2 | 543-4
15 | 24 57-71)| 17 | 552-1
30 | 25 02-22) 32 | 544-0
16,7 0 | 25 03-00 PA || By593334
10 | 24 58-53 || 12 | 554-4
42 | 25 02-32)|| 43 | 550-2
16 8 0 | 24 59-04 2 | 549-0
27 | 24 55-601! 28 | 536-5
40 | 25 01-18]} 42 | 535-7
50 07-67 || 52 | 538-9
16 9 0 04:07 2 | 547-2
5 07-27 7 | 529-9
10 05-22 || 12 | 526-5
a2) 03:67 1% || o25-7
19 | 541-3
20 | 24 58-25] 21 | 565-6
23 | 576-9
25 | 25 12-51] 26 | 573-6
28 17-67 || 29 | 569-4
30 22-80] 31 | 544-6
33 26-79 || 34 | 504-3
35 23-78 || 36 | 490-5
38 | 492-0
40 | 25 04-68] 41 | 507-0
43 | 24 57-55] 44 | 513-1
45 55:83 || 46 | 526-2
48 54-46 || 49 | 537-2
50 53-34 || 51 | 554-4
53 54:73 || 54 | 570-4
55 | 24 58-29|| 57 | 566-3
16 10 0 | 25 10-30 2 | 552-8
5 | 25 11-44 7 \By47033
10 | 25 03-50)}} 12 | 537-8
15 | 24 58-56)|| 17 | 545-1
20 | 24 59-50)|| 22 | 536-3
25 | 25 00-01 || 27 | 531-3
30 | 24 58-72|| 32 | 536-7
35 | 25 0O1-51)) 37 | 524-5
40 05-52 || 42 | 513-4
45 03-00 || 47 | 506-0
50 00-85 || 52 | 504-7
BALANCE
Corrected.
Min.
468-0
464-9
458-4
453-1
3 | 448-3
8 | 433-8
417-3
412-5
411-9
410-3
455-9
BIFILAR. k=0:000135.
Mic. Div.}
452-1}
Gott.
Mean
Time.
de pans
March.
16
16
16
26
26
26
26
10
11
12
22
10
—
BALANCE.
DECLINATION.
Min o ‘
55 | 24 56-47
0 56-40
5 56-14
10 52-87
15 50-75
20 49-98
25 52-60
30 | 24 58-18
35 | 25 01-27
40 | 24 58-70
45 57-51
48 57-51
50 56-03
oO) 50-69
0 51-76
5 53-95
10 54-80
15 | 24 59-57
20 | 25 08-25
25 13-05
30 15-85
35 14-99
40 10-16
45 04-14
50 00-71
55 01-32
0 03-75
0 | 25 22-25
(Q) |) B55 iler/a3
0 | 25 16-21
0 | 25 05-94
25 | 24 52-35
30 | 24 49-37
40 | 25 02-15
45 09-96
50 12-35
55 05-22
0 01-85
5 01-95
10 03-37
0 07-72
30 08-34
0 | 25 04-89
0 | 24 58-29
15 | 25 02-75
0 | 25 16-36
20 17-56
35 16-38
0 15-81
0 22-10
45 | 18-30
0 17-10
15 16-60
k=0:000010.
BIFILAR
Corrected.
Min. | Se. Div.
506-1
2 | 501-3
7 | 495-1
499-1
503-9
516-4
516-8
509-4
520-0
527-9
534-5
539-6
549-3
560-0
008-5
064-3
559-4
2 | 546-8
7 | 534.0
528-1
517-1
510-6
498-1
490-0
480-5
487-8
501-9
513-6
547-5
090-3
2 | 551-3
2 | 537-4
2 | 544-1
2 | 556-4
2) 543-6
584-8
589-4
572-9
553-0
532-0
534-2
2 | 542-1
7 | 548-9
552-4
2 | 533-0
531-3
2 | 536-3
2 | 574-8
562-5
2 | 524-2
344-7
531-5
2 | 541-3
2 | 565-9
555-3
2} 543-2
544-1
327
BALANCE
Corrected.
Min.
58
Mic. Div.
221-7
216-1
217-0
221-8
230-7
230-0
209-4
190-9
173-5
155:5
148-6
168-1
171-1
179-0
182-0
180-3
175-6
159-3
138-8
115-3
84-2
78-4
78-8
96-0
101-7
115-1
422-1
439-3
430-7
423-4
356-1
343-0
328-2
330-7
334-6
334-3
333-0
333-9
334-1
379-8
384.2
390-7
364-9
363-9
353-7
348-2
351-2
349-0
354-6
375-3
383:8
387-5
EXTRA OBSERVATIONS OF MAGNETOMETERS, MArcH 26—APRIL 16, 1846.
328
Gott BIFILAR BALANCE Gott.
Mean DECLINATION. Corrected. Corrected. Mean
Time Time.
rik, Lal Min a if Min. | Se. Div. || Min. | Mic. Div.f d. h.
March. April.
96 3 | 30 | 25 12-98] 32 | 552-0] 33 | 389-4} 6 10
26 4 0 09-66 2 | 556-2 3 | 395-1
27 71 0 | 24 59:16] 2/| 543.0] 3| 3889] © 2
15 | 24 53-95} 17 | 554-7] 18 | 387-7
Dip its! 0 | 25 03-48 2 | 554-8 3 | 378-2
30 0 | 25 05-32 Paleo 3 | 394-3
20 06-70 || 22 | 558-5 || 23 | 404-5
40 09-69 | 42 | 551-5 ]) 43 | 401-0
30 5 0 11-34 2 | 549-2 3 | 396-7
30 6 0 08-68 2 | 550-9 3 | 387-8
April. 6 12
6 4 0 | 25 20-90 2 | 585-6 3 | 432:3
10 18-75 | 12 | 575-1} 13 | 435-1
25 | 25 18-03 || 27 | 564-2}! 28 | 440-1
6 6 0 | 24 56-37 2 | 582-4 3 | 524-4
10 | 25 01-95) 12 | 576-9}| 13 | 522.7
20 04-82 || 22 | 571-8] 23 | 517-9] 6 13
40 09-42 || 42 | 567-0|| 43 | 507-8
Ont 7 0 | 25 11-98 2 | 566-0 3 | 507-2
55 | 24 44-23] 57 | 537-9] 58 | 485-8 6 22
6 8 0 | 24 46-19 PY AN Bey: 5254 6 3 | 462-7
5 | 24 50-18 7 | 552-4 8 | 443-0
11 | 25 00-71 ]) 12 | 549-6) 13 | 434-8] 6 23
15 03-23 || 17 | 539-6] 18 | 434-4
20 03-97 || 22 | 535-0]| 23 | 425-2] 7 7
25 03-43 || 27 | 528-7) 28 | 422-7
30 | 25 01-88 |) 32 | 526-8 || 33 | 420-0
46 | 24 57-41 |) 47 | 516-7]| 48 | 396-1 7208
50 | 24 51-32]! 52 | 522-9] 53 | 362-6] 7 10
55 | 24 55-73 || 57 | 508-2] 58 | 339-2] 7 11
6 9 0 | 25 00-00 2 | 490-6 3 | doles —
Be 2ae Syma 7 | 497-2 8 | 340-2] 10 8
10 52-87 || 12 | 492-3)) 13 | 325-1
15 54-89 || 17 | 487-7 || 18 | 305-8
21 56-37 || 22 | 481-3} 23 | 311-5] 10 9
25 51-90 || 27 | 481-6}| 28 | 289-1} 10 10
30 51-79 || 32 | 475-0} 33 | 257-4 —
34 | 474.1 ifey "7s
35 | 24 54-:82]| 37 | 471-3] 38 | 234-9
39 | 455-6
40 | 25 00-27] 41 | 438-9] 43 | 188-97 13 8
44 | 431-4 is 9
45 08-34 | 46 | 424.7 || 47 | 129-6} 13 10
48 | 433-4|| 49 | 110-8
50 12-65 || 52 | 411-2] 53 68:8
54 | 424-6 || 55 67:8} 14 8
554 14-06 || 57 | 437-2|| 58 68:0] 14 9
59 | 426-2
6 10 0 15-31 2 | 431-3 3 84-0
5 10-30 7 | 451-8 8 | 120-94 14 10
10 10-43 | 12 | 481-3] 13 | 160-9
15 07-67 | 17 | 490-3 | 18 | 172-2
| 20 05-52 || 22 | 488-3) 23 | 175-2
| 25 05-18 | 27 | 497-2} 28 | 183-3} 14 11
30 07-45 | 32 | 487-0) 33 | 198-7
35 02-89 | 37 | 509-1 || 38 | 209.9] 15 8
40 04:04] 42 | 521-7|) 43 | 201-2
45 10-97 || 47 | 510-5 || 48 | 156-5] 15 9
BIFILAR. k=0-000135.
DECLINATION.
Min. 2. ts
50 | 25 16-55
55 17-60
0 18-13
10 15-47
15 15-51
25 02-55
30 14-73
35 10-90
40 15-37
45 12-22
50 14-85
55 12-04
0 | 25 06-23
10 | 24 59-59
20 | 25 01-21
30 09-82
40 08-68
50 03-97
0 00-13
10 02-01
20 02-96
0 15-39
15 14-40
30 11-88
0} 25 10-31
0 | 24 53-17
5 | 24 54-59
20 | 24 59-53
0 | 25 02-19
0 03-50
0 04-51
0 | 25 02-37
15 02-99
By 05-38
0 05-29
0 05-70
0) 4-25: 13:72
37 04-61
50 01-51
0 02-80
0) 02-79
0 10-06
15 08-01
0 | 25 03-93
0 | 24 50-92
15 56-11
30 59-56
0 48-27
15 48-67
30 50-62
45 49-24
0 52-94
0 | 25 00-87
50 | 24 56-70
0 | 25 01-16
BIFILAR
Corrected.
Min. | Se. Div.
470-8
471-7
493-4
497-7
525-8
572-3
558-4
548-2
528-8
521-8
bo wom
etek Etc tow N bo
or
aD
ool
~I
BALANCE
Corrected.
Min. | Mic. Div.
140-1
135-5
143-9
83-4
76-7
105-3
124-9
140-7
152-3
160-5
186-1
199-7
3 | 200-2
182-6
176-1
187-2
194-6
209-4
211-6
215-5
215:8
366-9
361-3
359-9
361-3
419-0
418-3
417-5
409-4
384-3
363-5
wo—
bo tO Ww NT bo
443-8
436-2
424-2
405-7
383-2
470-8
478-0
461-8
452-7
414-1
266-9
271-8
52
2
370-1
407-6
379-4
365:8
342-6
336-7
335-4
333-5
332-3
3759
384-3 |
376-4 |
Gott.
Mean
Time.
d. ih.
April.
15 9
15 10
15 23
16
or
16
16
16
16
BALANCE.
k=0-000010.
a
‘LAR
cted.
. Div.
551-4
544-0
505-9
518-9
17-8
515-2
924-3
66-2
70-2
173-8
88-7
96-4
513-9
31-2
26-1
14-1
05-4
101-2
85-2
85-9
174-1
60-2
62-8
91-9
74-6
84-7
46-5
31-7
39-1
50-2
(54-8
56-6
(57-6
40-2
AR 4
35-1
EXTRA OBSERVATIONS OF MAGNETOMETERS, APRIL 15—May 11, 1846.
BALANCE eel
Corrected. cen
Time.
Min.
43
48
53
\Mic.Div.f d. h
372-1
374.6
1679
16 10
340-3
368-2
377-2
389-2
409-4
490-5
504-9
512:3
529-3
536-0
540-4
527-2
16 il
517-5
511-3
509-8
510-3
510-6
504-1
501-2
491-1
458-3
444.3
426-5
423-7
428-3
430-6
430-6
429-4
428-5
427-1
431-1
417-3
417-0
388-9
391-9
389-3
356-4
16 12
16 13
333-3
296-9
252-6
230-9
219-0
217-1
243-6
16 20
April.
DECLINATION.
56-00
00-60
00-55
57-01
52-50
57-75
05-69
06-12
07-94
07-60
07-07
0 08-32
5 09-79
08-34
04-71
00-60
55-06
51-09
49-10
0 | 25 09-27
BIFILAR. k=0:000135.
ie
IG. AND MET. ops. 1846.
BIFILAR
Corrected.
Min.
57 | 553-6
59 | 575-1
2 | 585-5
7 | 576-2
560-8
555-7
546-6
533-8
522-7
2 | 516-8
544-9
557-7
546:5
538-4
538-5
534-9
525-0
521-8
517-5
2 | 518-3
508-7
Sc. Div.
BALANCE
Corrected.
Min. | Mic. Div.
58 | 252-1
3 | 253-9
8 | 254-0
13 | 256-1
18 | 258-0
28 | 260-8
38 | 254-0
48 | 258-2
3 | 263-8
ils |) éyiloll
18 | 222.0
23 | 199-6
28 | 182-7
33 | 169-9}
38 | 149-0
43 | 173.4
53 | 177-1
58 | 175-3
3 | 166-5
LS) | Mioo-1
18 | 155-1
23 | 159.5
28 | 159-5
33 | 146-5
39 | 130.8
43 | 121-1
48 | 114-5
53 | 108-5
58 | 100-4
BI ers
8 68-0
13 76:8
18 82-3
23 84-5
28 86-0
33 89-4
38 90-0
3 | 328-0
Gott.
Mean DECLINATION.
Time.
d. h. || Min.] ° /”
April.
16 20 || 15 | 25 14-13
30 15-54
21 10 0 | 25 06-79
10 06-76
May.
4 2 O | 25 18-92
4 > 3) oo 22-50
4 4 0 21-32
10 18-54
15 19-58
20 18-34
25 16-86
30 16-23
35 14.17
40 12.98
45 12-35
Aas 0 14-46
15 15-04
30 15-04
50 09-76
4 6 0 12-23
4 8 0 | 25 04-88
4 9 0 | 24 59-83
35 49.48
40 51-72
45 56-30
50 58-70
55 55:40
4 10 0 51-59
10 50-13
15 49-37
20 46-61
25 44-90
30 43-58
35 43-72
40 44-53
45 49-14
50 53-54
55 54-72
4 11 0 52-67
5 50-46
10 50-04
20 52-87
9 10 0 | 24 57-56
10 | 24 58-72
11 18 0 | 24 51-10
10 50-89
20 53-27
| 30 53-79
BaLANcE. k=0:000010.
BIFILAR
Corrected.
Min. | Se. Div.
17
32
515-3
514-6
2 | 555-3
505-4
2 | 551-2
582-3
2 | 579-3
567-0
051-1
549-6
550-7
553-9
049-0
001-8
598-9
2 | 556-9
566-4
577-1
569-9
2 | 564-0
2 | 573-1
2 | 545-5
550-6
543-8
528-5
514-9
502-7
2 | 490-4
7 | 489-9
496-7
490-2
478-8
465-4
459-3
453-7
446-5
448-5
451-9
463-0
485-7
489-4
491-6
483-2
491-5
495-2
2 | 501-0
7 | 503-8
504-8
510-2
2 | 541-1
538-0
2 | 529-2
527°8
531-7
540-9
329
BALANCE
Corrected.
Min. | Mic. Div.
18 | 327-8
33 | 323-0
3 | 359-5
358-2
3 | 335-6
408-1
3 | 418-1
441-3
410-3
463-8
471-2
479-4
484-7
486-3
484.9
3 | 488-0
485-2
483-6
489-5
3 | 487.4
3 | 504-2
3 | 500-1
421-3
382-6
350-8
331-8
308-7
3 | 291-1
8 | 268-9
257-2
234-9
194.9
180-5
175-6
170-3
167.4
137-2
103-4
103-1
115-3
95-5
85-9
79:8
104-5
3 | 372-6
13 | 368-8
3 | 235-7
242-1
245-3
248-2
330 ExTRA OBSERVATIONS OF MAGNETOMETERS, May 11—13, 1846.
Gott. : BIFILAR BALANCE Gott. I
Mean DECLINATION. Corrected. Corrected. | Mean DECLINATION. seman ae DECL
Time. Time
GI dels Min. i} v Min. | Se. Div. || Min. | Mic. Div. ds, ) ii. Min. p. @ Min. | Se. Div. || Min. | Mic. Div§ d. h Min.
May. May. May.
11 18 || 50 | 24 54-62]) 52 | 554-3|| 53 | 258-6] 12 4 || 35 | 25 16-48|| 37 | 565-3|| 38 | 446-6] 12 11 5
11 19 0 | 25 00-33 2 | 554-1 3 | 261-0] 12 5 0 09-66 2 | 563:3 3 | 457-1
30 | 24 58-58 || 32 | 549-4] 33 | 263-8] 12 6 0 06-61 2 | 643-9 3 | 483-3 10
50 58-89 || 52 | 525-0] 53 | 279-5 5 13-29 7 | 627-3 8 | 528-1 15
55 57-41 || 57 | 514-5 ]| 58 | 282-3 10 03-02 || 12 | 610-9} 13 | 505-4 20
11 20 0 58-63 2 | 508-2 3 | 286-7 15 08-85 || 17 | 602-6) 18 | 482-7 25
4 | 503-0 20 04-91 || 22 | 603-1 |} 23 | 480.2 30
5 | 24 59-76 7 | 502-8 8 | 291-1 25 04-44 | 27 | 604-7 |) 28 | 479.0
10 | 25 01-48 }] 12 | 501-2]| 13 | 293-2 30 05-08 || 32 | 603-4|| 33 | 473-5 35
15 00-87 || 17 | 507-7 || 18 | 291-8 35 06-26 | 37 | 598-5 |) 38 | 465-7
20 01-27 || 22 | 502-5}|) 23 | 301-2 45 | 25 10-75 || 47 | 603-9]| 48 | 484-7 40
25 03-20 || 27 | 494-5 || 28 | 294.4 50 | 24 57-44) 52 | 639-1 || 53 | 477-9
30 05-29 || 32 | 498-6|| 33 | 290-9 55 | 25 06-45] 57 | 637-0|| 58 | 413-2 45
35 08-01 || 37 | 502-6]] 38 | 291-7] 12 7 O | 25 17-61 2 | 572-8 3 | 412-9 47
40 10-47 || 42 | 504-8]| 43 | 291-4 4 | 566-9 50
45 06-23 || 47 | 485-2 5 | 25 01-75 6 | 580-9 7 | 454-4 52
48 | 483-5 || 49 | 292.3 8 | 606-9
50 04-51 || 51 | 484-5 10 | 24 45-57 || 11 | 632-1|| 12 | 427-9 55
52 | 482-5 || 53 | 292-5 ey 51-14] 14 | 638-3
54 | 476-4 15 54-82 16 | 407-2} 12 12 0
55 04-55 || 56 | 469-9 17 | 630-9 || 18 | 401-9 2
57 | 466-1 || 58 | 293-9 20 | 24 59-53 || 22 | 623-6|| 23 | 390-1 4
59 | 462-9 25 | 25 02-67 || 27 | 615-0|) 28 | 383-5
11 21 0 01-19 1 | 467-3 30 04-37 || 32 | 603-9} 33 | 377-2
2 | 472-7 3 | 292-0 35 06-26 || 37 | 604-8 || 38 | 366-0 8
4 | 477-9 40 16-65 || 42 | 566-0|| 43 | 367-6 10
5 01-43 6 | 478-9 45 14-03 | 47 | 546-8|) 48 | 380-7 13
1475-7 8 | 294-3 49 | 554-7
10 03-55 || 12 | 482-5] 13 | 294.2 50 | 25 00-33 || 52 | 561-7|| 53 | 393-4
15) 04-61 || 17 | 486-2]| 18 | 294-5 55 | 24 54-28]! 57 | 574-2]| 58 | 387-4 17
20 11-44] 22 | 494-5] 23 | 296-1] 12 8 0 | 24 56-18 2 | 577-8 3 | 375-6 19
25 11-81 || 27 | 500-5 || 28 | 294-8 11 | 25 02-69 ]| 12 | 564-4]) 13 | 394-2 21
30 13-49 || 32 | 505-1]| 33 | 291-4 20 | 24 58-47] 22 | 577-3 || 23 | 401-2 23
35 11-71 || 37 | 509-9|} 38 | 287-0 30 | 25 04-98] 32 | 564-0|| 33 | 399-9 25
40 11-84 || 42 | 507-4|| 43 | 286-6] 12 9 O | 25 01-43 2 | 550-7 3 | 402-3 27
45 13-56 || 47 | 516-6]| 48 | 283-2 35 | 24 59-64] 37 | 536-7|| 38 | 310-3 29
11 22 0 11-99 Py alli7fe7i 3 | 282-5 40 | 25 03-16]! 42 | 526-2|| 43 | 270-7 31
30 11-00 || 32 | 517-1|) 33 | 290-6 45 07-91 || 47 | 512-7]) 48 | 246.2) 33
11 23 0 10:43 2 | 492.4 3 | 313°8 50 06-63 || 52 | 505-8 || 53 | 243-9 35
10 12-82 || 12 | 505-8} 13 | 315-2 55 | 25 00-94] 57 | 513-8]! 58 | 238-0 38
15 14-08 || 1¥ | 494-5 |) 18 | 320-0] 12 10 0 | 24 58-16 2 | 520-8 3 | 219-6 40
20 17-91 || 22 | 500-3 ]} 23 | 320-9 10 | 25 05-25} 12 | 510-4] 13 | 163-8 45
25 16-92 || 27 | 504-1|| 28 | 320-3 15 09-32 | 17 | 503-5|| 18 | 122-0 50 |.
30 18-95 || 32 | 497-0|| 33 | 320-6 20 14-33 || 21 | 477-4} 22 80-4 55
35 18-55 || 37 | 498-3 || 38 | 324.4 23 | 474-9 || 24 70-2} 12 13 0;
40 18-97 || 42 | 507-8 || 43 | 322-7 25 14-03 | 26 | .474-1}| 27 54-2 5
45 20-20 || 47 | 504-4|| 48 | 325-3 28 | 477-0|| 29 56-1 16
i 50 19-53 || 52 | 511-9 30 14-50] 31 | 510-6} 32 78-5
120 0 19-61 2 | 509-1 3 | 324-1 35 10-97 || 37 | 494-2]| 38 | 110-07 12 18 0
25 19-31 || 27 | 518-9 || 28 | 327-4 40 03-23 || 39 | 488-8 30
40 16-87 || 42 | 507-8 || 43 | 334-5 41 | 25 00-58 || 42 | 503-1 || 43 | 152-5] 12 20 Ong
50 17-39 || 52 | 509-7 || 53 | 335-7 45 | 24 52-17] 44 | 509-4 12425 0
| 0 16-41 2 | 522-8 3 | 335-3 46 51-76 || 47 | 507-7|| 48 | 151-6 30° i=
10 16-12] 12 | 524-2]) 13 | 336-0 50 48-83 | 49 | 505-9 13 40 0
30 15-07 || 32 | 538-4 || 33 | 333-4 51 48-36] 52 | 505-0} 53 | 152-8] 13 2 0
45 15-79 || 47 | 530-3 || 48 | 337-4 55 46-72 Wey 0°
Ps 4 0 15-45 2 | 534-5 3 | 339-9 56 46-28 || 57 | 503-9] 58 | 169-47 13 4 0}
1h. <3} 0 19-17 2 | 574-1 3 | 392-2] 12 11 0 43-65 L3:p4b 0}
32 14-98 || 33 | 568.4 || 34 | 465-2 1 43-82 2 | 514-7 3 | 169-4} 13 6 0 |
12 411 0 10-:06!| 2 | 555.41! 3 | 486-5 4 | 518-3 13 8 | a
BIFILAR. k=0:000135. BALANCE. k=0:000010.
May 114 226 10™. Clock 235 slow, set right.
AR
ed.
. Div.
ain!
a
S
SaSoROH HIS
>
He CO
Sbhu4oavobwnwwew wv
bean
EXTRA OBSERVATIONS OF MAGNETOMETERS, May 12—Juty 11, 1846.
ALANCE Gott. BIFILAR BALANCE Gott.
“eed Mean DECLINATION. Corrected. Corrected. Mean
Time. Time,
Min. | Mic. Div. d. h. Min, 2 u Min. | Se. Div. |} Min. |Mic. Div. dah,
May. June.
8 | 167-61 13 9 0 | 25 00-62 2 | 561-2 3 | 3861-8] 22 14
13 10 0 04-34 2 | 543-2 3 | 353-8
ta | tere 14 8 | 0 | 25 11-41] 2| 5761] 3 | azis| 2?
93 | 200-8 14 9 0 03-90 2 | 552-0 3 | 351-8
98 | 165-9 14 10 0 06-37 tee 551-4 3 | 348-2
33 98-74 18 18 0 | 25 12-67 2 | 546-1 3 | 296-2
40 03-70 || 42 | 549-7 || 43 | 290.8
37 91-9} 18 19 0 02-72 2 | 553-8 3 | 291-3
39 93-3 18 20 0 02-05 2 | 573-0 3 | 317-9] 22 16
42 | 99.2] —————— —_ OOVN7
44 | 102-2] 23 4 0} 25 15-14 2 | 583-8 3 | 396-4} 22 18
47 | 106-7 32 | 607-0|| 33 | 427-2 =
49 | 102-0} 35 06-83 || 37 | 614-0] 38 | 431-7} July.
52 | 102-4 40 08-45 || 42 | 614-9] 43 | 438-4] 3 18
45 09-19 || 47 | 607-0|| 48 | 443-97 3 19
50 09-08 || 52 | 608-0 || 53 | 444.3 3 20
57 73-3] 23-5 0 02-46 2 | 592-9 3 | 459-8 q-
59 52-2 10 01-11]; 12 | 583-5 || 13 | 472.6) 6 6
20 03-74 || 22 | 569-5 || 23 | 477-8
2 39-7 30 03:02 || 32 | 570-2 || 33 | 478-9
4 26-2} 45 05-69 || 47 | 562-3 || 48 | 475-6
6 5.91 23 6 0 07-10 2 | 562-0 3 | 413-2
|_| | —— 6 1
8 |/+ 2-1] June.
11 |—20-9} 2 8 0 | 25 01-09 2 | 549-4 3 | 440-5 6 10
13 |—43-1 } 5 | 24 55-29 7 | 545-7 8 | 453-3
15 |—93-6 10 47-62 || 12 | 560-2]) 13 | 458-5
17 |-113-6 15 37-16 || 17 | 587-6 || 18 | 441-3}
20 38-91 || 22 | 606-4 || 23 | 430-3}
19 |-115-7 25 47:79 || 27 | 590-8 || 28 | 430-0
30 50-49 || 32 | 580-3 || 33 | 434-9
23 |—92-5 40 54-38 || 42 | 567-1]| 43 | 436-0] 7 20
26 |—63-0} 2 9 O | 24 58-42 2 | 561-0 3 | 422.9
2 10 0 | 25 01-61 2 | 549-4 3 | 387-24 7 22
29 |-18-1 = |= ——||—— — ——__—
Boas 7-34.19 6 0 | 24 59-66 2 | 604-0 3 | 507-1) 11 2
10 | 24 59-231! 12 | 593-3) 13 | 519.5
35 11-8 20 | 25 00-44}) 22 | 598-4]! 23 | 517-4
of 21-8 45 07:54 || 47 | 579-1 || 48 | 504-0
43 41-6 9 7 0 07-10 2) || syyfiloy/ 3 | 496-8
48 60-0 —||———}——__ | —_
53 88-34 15 9 2 | 25 07-84 3 | 565-4 4 | 440-1
58 95-7 45 | 24 59-51) 47 | 558-6 || 48 | 427-5
3 | 116-1] 15 10 0 | 24 53-65 2 | 569-5 3 | 412-4
8 | 129-2 10 | 25 01-04} 12 | 559-8) 13 | 409-4
18 | 148-2 15 02-53 || 17 | 556-2|| 18 | 404-8
—||— | —-—— — — Gils 333
3 | 319-8] 18 18 0 | 25 12.22 2 | 533-0 3 | 386-2
33 | 333-5 50 16-21 || 52 | 538-4) 53 | 355.3
3 | 347-4] 18 19 0 17-80 2 | 538-5 3 | 350-5
3) | BEBE 15 19-84 || 17 | 542-3] 18 | 345-9
33 | 351-3 20 18-94 || 22 | 544-0]; 23 | 345-0
3 | 354-6 30 17-53 || 32 | 545-6 || 33 | 344-4
3 | 368-0 40 15-88 || 42 | 544-4}| 43 | 345-5
3 | 377-4] 18 20 0 08-14 2 | 544-3 3 | 351-9
3 | 404-6 =| ||————.||_ ++ eee |
3 | 394.4] 22 13 0 | 25 16-15 2 | 535-5 3 | 266-9
3 | 395-2 16 | 25 02-48] 17 | 537-4|| 18 | 246.4
3 | 389-7 25 | 24 59-01] 27 | 550-4]} 28 | 270-8] 11 4
BIFILAR. k=0'000135.
June 154 2,
DECLINATION.
Min e y.
O | 24 59-44
35 | 24 55-06
0 | 25 05-15
10 12-98
15 14-26
20 14-60
25 13-99
30 12-08
45 08-43
0 | 25 04.37
O | 24 58-69
0 | 24 58-45
0 | 25 02-26
O | 24 59-66
0 | 25 01-90
0 | 25 19-68
10 17-81
20 11-93
30 14-15
40 13-64
0 12-22
0 | 25 01-29
10 | 24 55-73
15 54-66
20 54:77
25 | 24 58-63
30 | 25 02-13
O | 24 58-52
25 | 24 57-64
O | 25 02-15
0 | 25 17-40
10 19-39
15 19-89
20 23-07
25 23-92
30 22-03
35 19-58
40 19-26
45 23-56
50 23-61
50 22-10
0 24-82
5 27-62
10 25-47
15 25-02
20 25-80
25 23-70
30 21-24
35 18-82
40 15-49
45 16-57
50 14-33
55 13-99
0 15-29
Min.
BIFILAR
Corrected.
Se. Div.
543-3
550-4
526-0
525-7
530-8
534-7
538-7
539:8
543-6
548-0
527-6
542-9
2 | 515-4
2 | 529.0
2
536-8
497-2
507-7
527:5
538-5
547-9
554-7
558-2
566-8
571-1
574-6
570-0
558-4
536-6
534-0
527-6
508-1
532-7
566-4
592-0
604-1
571-0
556-1
544-0
531-8
506-5
516-0
552-2
553°5
559-8
573:3
591-3
569-9
565-9
557-1
554-0
555-7
560-2
573-6
577-7
3
38
3
3
331
BALANCE
Corrected.
Min. | Mic. Div.
265-7
269-7
298-9
298-4
290-5
284-9
282-1
283-9
282-6
347:°5
375-0
207-8
262-6
300-1
397-6
395-6
390-2
389-7
383-9
371-5
404-8
391-6
387-0
378-7
373-7
370-2
366-7
558-9
567-7
563-9
568-2
BALANCE. k=0:000010.
Clock 268 fast, set right.
1)
11 5
1 6
13 6
NS} ef
13 8
DECLINATION.
Min. a ,
By | 5) aefeal'ze
10 15-24
15 16-72
25 15-58
30 14-87
35 13-29
40 13-46
45 12-75
55 14-46
0 14-40
5) 14-98
15 12-48
30 12-72
35 13-41
45 13-30
Q 13-05
0 | 25 06-32
15 07-47
0 14-80
5 12-78
10 07-00
15 02-08
20 | 25 00-10
25 | 24 56-77
30 58-73
35 56-50
40 56-30
45 | 24 58.52
50 | 25 03-04
0 11-34
10 03-43
20 05-99
30 05-79
45 | 25 05-45
30 | 24 59-50
40 | 24 58-79
0} 25 02-19
10 | 25 01-72
0 | 24 57-05
10 | 24 56-10
20 | 24 57-64
0} 25 14-01
0 09-42
0 03-48
0 | 24 59-83
10 | 25 02-15
0 | 24 59-34
10 | 25 02-15
20 03-37
0 04-17
0 | 25 12.98
20 10-27
30 10-06
BIFILAR
Corrected.
Min. | Sc. Div.
7 | 585-5
587-4
588-8
570-7
558-6
571-7
575-6
574-7
575-5
572-5
2 | 572-6
7 | 569-0
564-1
594-9
597-5
572-8
2 | 579-8
2 | 596-5
598.3
2 | 592.9
7 | 576-0
565-5
577-2
578-3
586-8
593-7
590-1
597-4
601-3
595-8
2 | 570-4
566-1
573-5
568-0
571-1
556-5
22
32
BALANCE
Corrected.
Min. | Mic. Div.
8 | 566-5
568-1
578-3
608-5
614-3
603-4
599-4
595-2
591-9
585-6
3 | 579-8
8 | 573-2
599-9
529-6
526-5
539-8
3 | 533-0
3 | 524-7
527-1
3 | 547-4
8 | 545-1
570-0
575-1
560-6
552-2
537-8
529-0
517-8
506-0
499-9
3 | 499-6
492-6
481-8
474-0
460-8
450-3
441-8
3 | 427-3
416-3
3 | 399-7
390-2
381-7
3 | 317-4
3 | 325-5
3 | 337-1
3 | 386-1
13 | 385-8
3 | 480-9
13 | 470-6
23 | 464-2
3 | 410-1
3 | 383-9
23 | 397-1
33 | 396-4
29 4
29 5
29 6
DECLINATION.
Min 2 U
0 | 25 10-04
0 00-57
10 02-26
0 |} 25 01.92
0 | 24 54.72
5 | 25 00-99
1 03-81
15 03-34
0 | 25 16-80
15 19-68
20 17-89
25 19-17
30, 16-92
35 17-42
40 16-36
45 15.47
50 17-33
55 19-28
0 18-50
10 18-84
25 12-51
35 13-70
40 13-12
50 11-24
0 14-78
5) 09-42
10 02-87
15 05-77
21 | 25 02-28
25 | 24 59-88
30 57-89
35 | 24 59-66
40 | 25 01-99
45 05-05
50 06-06
55 07-61
0 07-20
10 09-15
25 07-92
0 08-41
0 | 25 05-45
35 | 2451-32
40 46-52
45 50-04
50 56-40
0 | 24 59-95
10 | 25 05-29
20 03-28
30 | 25 03-37
O | 24 57-78
0 | 25 07-20
15 06-16
20 05-55
25 10-33
30 13-81
40 09-89
BIFILAR.
k=0:000135.
BIFILAR
Corrected.
Min. | Se. Diy.
2 | 574-8
2 | 581-2
12 | 580-1
2 | 559-2
2 | 573-5
7 | 560-0
552-3
553-0
2 | 575-0
595-2
611-1
607-7
590-3
600-0
603-1
606-0
597-4
587-7
2 | 595-2
610-2
607-2
618-2
615-4
624-9
2 | 614-0
7 | 610-3
614-0
610-2
609-8
583-2
584-5
588-7
588-8
581-4
084-4
588-6
2 | 590-1
575-1
573-7
2 | 556-5
2 | 565-0
562-4
581-8
586-8
586-8
2 | 570-6
570-3
064-0
562.2
2 | 549-8
2 | 525.3
482-7
490-6
510-1
508-2
480-5
BALANCE
Corrected.
Min. | Mic. Div.
Gott.
Mean
Time.
a, h.
Aug.
6 20
6 21
Soowawy ov
NI ww 0
ie.e}
7 10
7 20
BALANCE.
k=0-000010.
3
0).
7
3
6
4
6
1
4
4
1
3
9
4
3
5
1
7
1
6
5
3
8
6
1
2
2 ||
BALANCE
Corrected.
Min. | Mic. Div.
364-0
358°8
349-0
352-2
352-7
346-8
368-7
377-1
377-4
3759
375-0
373-0
369-4} 8 10
368-3
365-5} 12
363-7
387-9
410-6
412-8
364-3
407-6
428-6
414-7
409-9
404-1
390-4
396-3
433-7
472-8
451-6
443-9
376-3
350-2
362-9
318-8
318-7
337-0
345:6
350-6
351-1
352-1
350-8
344-1
288-3
298-7
323-1
363-8
361-2
373-4
385-1
448-2
456-6
439-9
424-7] 14 5
433-8
412-7] 14 6
BIFILAR
Corrected.
Min. | Se. Div.
57 | 590-8
2 | 586-6
7 | 579-3
17 | 579-4
27 | 572-5
573-6
569-7
062-4
582-0
566-2
544-9
556-9
551-2
578-0
582-9
575-8
574-9
039-5
527-6
507-3
510-9
517-4
535-5
512-2
546-7
058-5
551-8
545-3
553-4
539-6
538-0
534-6
524-4
535-3
554-6
556-0
553-3
568-7
550:5
530-2
544-7
524-2
589-9
598-1
595-5
592-8
575-5
562-5
560-1
574-9
581-6
578-3
571-7
559-9
554-0
507-14
BALANCE
Corrected.
Min. | Mic. Div.
24
25
25
24
24 57-31
24 57-98
BIFILAR
Corrected.
Min. | Sc. Div. |
564°3
560-3
554+1
544-7
523-5 |
543-3
547-5
566-3 |
566-4
“BIFILAR, k=0:000135.
AND MET. ons. 1846.
25 11:03
18-08
18-40
18-67
18-30
16-68
13-25
25 11-37
24 55:53
25 02-28
04-61
01-01
04-31
25 16-08
24 58-65
25 02-79
09-15
06-27
25 03-11
24 58-92
54-28
58:99
01-96
42.84
42-41
45.11
50-75
41-43
47-30
48-30
48.47
48.54
49-34
52:64
25 03-38
24 56-20
55-09
59-19
24 57-17
25 00-71
BALANCE.
24 57-81
24 57-71
522-5
517-6
513:8
512-9
515-9
534:6
546-7
543-9
592-5
568-2
045:4
553-3
560-1
533-7
577-0
572-5
548.3
529-6
528-8
535-7
557-4
549-5
548-4
538-0
048-8
535-9
529-3 || 4
524.1 |
532-1 ||
k=0:000010.
BALANCE
Corrected.
Min. | Mic. Div.
3 | 431-0
43 | 433-5
3 | 419-1
363-3
317-2
310-3
307-5
293-4
277-8
270-3
365-2
363-7
262-6
270-3
274-2
275-1
279-3
277-1
276-5
284-2
446-8
450-0
446-2 |
4357-6
412.4
206-2
207-2
199-6
201-7 |
218-1
238-5
260-8
279-7
289-7
325-1
228-0
223-3
212-6
198-7
182-6
183-1
185-9
187-4
192.3
196-0
410-4
416-7
412-0
401-6
386-6
388:°8
386-5
386-0
334 EXTRA OBSERVATIONS OF MAGNETOMETERS, AUGUST 25—SEPTEMBER 8, 1846.
Gott. Gott. : Gott.
Mein | Dzcumanos. | Buta | Batance | xem | Deouwanron. || BUNK | Batance | Sosy
Time. Time. Time.
ds ihe Min. © f Min. | Se. Div. || Min. | Mic. Div. id ail Min. y "i Min. | Se. Div. |} Min. | Mic. Diy. da: hy
Aug. Aug. Sept.
Zo, 9 0 | 25 01-48 2 | 554-7 3 | 366-1} 28 11 | 20 | 24 56-40]] 22 | 530-0]! 23 | 240-8] 5 O
25 10 0 05-11 24 \ ys B 7h 3 | 357-6 25 54-35 || 27 | 532-0]| 28 | 248.2 a) al
|| ——|———_—— | —— | ———- |] —_- 30 52-60 || 32 | 536-7|| 33 | 261-2
ie S 0 | 25 01-63 2 | 565-1 3 | 410-5 35 51-14 || 37 | 542-8] 38 | 271-2
30 | 24 55-94]| 32 | 545-4] 33 | 448-4 40 51-79 || 42 | 547-6|| 43 | 277-8] 5 2
40 51-70 || 42 | 538-0} 43 | 499-6 45 52-53 || 47 | 549-6]! 48 | 279-0 ab 4
45 40-76 || 47 | 554-4]] 48 | 520.0 50 54-63 || 52 | 549-1] 53 | 284-3
50 31-54 || 52 | 569-7} 51 | 530-5 55 57-34 || 57 | 545-6]| 58 | 294-0
53 26-50 || 54 | 581-3]| 54 | 504.0] 28 12 0 58-18 2 | 544.3 3 | 298-3
55 30-07 | 57 | 579-9|| 58 | 457-0 5 | 24 59-01 7 | 542-8 8 | 303-9
27 9 0 37-41 2 | 578-0 3 | 421-6 32 | 25 00-74)] 33 | 545-3 || 34 | 306-4
5 42-81 7 | 576-1 8 | 399-2] 28 12 | 35 | 25 00-80]|| 37 | 545-1]] 38 | 307-9
10 49-03 || 12 | 563-1] 13 | 388-3 —|| —— a ——s
20 54-89 || 22 | 546-4]) 23 | 371-9] 29 6 0 | 25 00-60 2 | 590-3 3.| 394-8) 455
30 50-92 || 32 | 533-4]| 33 | 360-1 25 | 25 01-24]! 27 | 572-2)! 28 | 405-5
40 55:02 || 42 | 535-6] 43 | 342-0 50 | 25 01-45 |) 52 | 569-2)| 53 | 410-6
27 10 0 57-98 2 | 524-7 3 | 318-4] 29 7 0 | 24 58-82 2 | 576-3 3 | 413-9] 5 6
10 | 25 00-31} 12 | 528-6]| 13 | 296-6] 29 8 0 | 25 05-11 2 | 562-3 3 | 399-1
20 | 25 00-51] 22 | 520-8]] 23 | 296-6] 29 9 || 52 | 24 54-68]| 53 | 580-1]} 54 | 318-4
30 | 24 54-95] 32 | 521-3]] 33 | 276-0] 29 10 O | 25 02-55 2 | 594-5 3 | 301-7
35 53-85 | 37 | 513-6|| 38 | 265-6 5 07-04 7 | 590-9 8 | 290-0
40 53-51 || 42 | 519-8 ]] 43 | 246-9 10 10-27 | 12 | 576-8]] 13 | 282-4
45 52:33 || 47 | 514-4 || 48 | 208-5 (5) 11-24}|| 17 | 565-2|| 18 | 274-0
50 | 24 56-87] 52 | 507-2]) 53 | 164.4 26 11-32 || 22 | 554-5 || 23 | 267-7
55 | 25 00-87 || 57 | 507-2]| 58 | 138-4 25 10-11 || 27 | 549-3 || 38 | 262-7
Papal 0 04-17 2 | 493-4 3 | 128-3 30 09-19 || 32 | 544-4]! 33 | 262-4
5 04-34 7 | 499-6 So Tiles =| | ——-—_ || —— —
10 03-30 | 12 | 495-6 || 13 | 122-2] Sept.
15 04-21) 17 | 492-3]} 18 | 112-8 3 18 Oy) 2a) 1251 2 | 536-7 3 | 304-5 ee’
20 | 25 04-05 | 22 | 472-5 |) 23 | 115-3 20 | 25 05-87 || 22 | 549-8]| 23 | 251-2
25 | 24 53-95 || 27 | 466-9]! 28 | 127-2 40 | 25 04-58 || 42 | 554-8}) 43 | 260.4
30 40-39 || 32 | 491-2]) 33 | 142-4] 3 19 0 | 24 58-42 2 | 559-4 3 | 257-8
35 32-25 || 37 | 552-2]) 38 | 139-4] 3 20 0 | 25 02-03 2 | 543-9 3 | 273-7
36 32.2? 39 | 569-1 3 22 0 17-56 2 | 530-5 3 | 302-9
40 37-74 || 42 | 555-4/] 43 | 128-2 20 16-79 || 22 | 537-9}} 23 | 320-3 5. 68
45 42:71 || 47 | 536-0] 48 99-7 30 14-98 || 32 | 538-0]| 33 | 340-4] 5 9
50 45-91 || 52 | 536-1 || 53 76:3 3) 2a 0 | 25 14-50 2 | 539-3 3 | 360-6 5 10
55 49-61 || 57 | 534-4]| 58 | 103-5
Dif V2 0 | 24 49-00 2 | 541:5 ao | L215 4 9] 55 | 24 58-74] 57 | 554-0]| 58 | 379-7
4 ||| ——_——— | 4 10 0 54-70 2 | 549-3 3 | 376-8
28 7 0 | 24 56-11 2 | 584-2 3 | 462-6 5 50-36 7 | 559-8 8 | 368-6
10 | 24 58-18] 12 | 574-7]| 13 | 459-8 10 49-34 || 12 | 579-5]! 13 | 356-3]
35 | 25 00-30} 37 | 563-7|| 38 | 450-0 115 50-22 || 17 | 595-7 || 18 | 338-2
28 8 0 05-15 2 | 558-4 3 | 428-4 20 | 24 57-28 || 22 | 590-7)| 23 | 327-9
28 10 0 04-84 2 | 549-5 3 | 279-5 25 | 25 02-96 || 27 | 583-6|| 28 | 320-4 7 20
6 15-27 7 | 540-0 8 | 239-1 30 | 25 06-86 || 32 | 579-7)! 33 | 313-1
10 19-82 || 12 | 513-7) 13 | 189-5}
13) 24-66 || 17 | 499-8) 18 | 135-8) 4 20 0 | 25 12-01 2 | 527-9 3 | 369-4 7 99
20 | 25 12-11 ]| 22 | 489-5)) 23 | 122-7 10 14-33 || 12 | 511-5]| 13 | 372-0
| 25 | 24 54-06} 27 | 542-2]| 28 | 158-1 15 13-91 || 17 | 528-9]| 18 | 371-0
30 44-12 || 32 | 580-3 || 33 | 181-7 30 15-58 || 32 | 520-3]| 33 | 365-5] § 8 |
35 45-11 || 37 | 584-9 ]} 38 | 184-5 45 08-55 || 47 | 536-9]| 48 | 374-0
40 49.91 || 42 | 591-4}| 43 | 190-5 4 21 0 07-62 2 | 532-2 3 | 366-7
45 | 24 56-90] 47 | 581-5]] 48 | 199-2] 4 22 0 13-41 Za|Polora 3 | 379-9
50 | 25 00-87 || 52 | 567-1 || 53 | 199-1 20 17-15 || 22 | 515-4]| 23 | 394-3
95 03-94 || 57 | 551-3]] 58 | 198-1 40 13-88 || 42 | 515-21) 43 | 393-1
28h 1 WeO 00-87 2-| 587-2 3 | 205-5 4 23 0 15-04 2a 76 3 | 415-1
i) 03-09 7 | 545-6 8 | 209-3 35 16-30 || 37 | 519-4]| 38 | 402-5 8 9
10 03-70 || 12 | 530-3 || 13 | 221-1 50 14-94 || 52 | 528-8]| 53 | 392-3
|| 15 01-34] 17 | 523-1) 18 | 229-87 5 O 0 18-82 2 | 521-6 3 | 392-7] 8 10
BrFinar. k=0-000135. BALANCE. k=0-:000010.
Aug, 27411», The balance needle has been vibrating the most of the evening.
Aug. 284 108 14™. Clock 15s fast, set right.
id.
Div.
7:7
6-1
1-2
7:8
Gel aaah
OB & to
o—
.
WH SCOHTUAAESSAEVEH GH AAHYVSGHV HUES ho
—— oe re
.
‘.
pA
pe
x)
oO
ee a er Cerca er ee
4
S2oOoWSOAKO
BALANCE
Corrected.
Min.
33
Mic. Div
407-0
418-4
473-1
487-6
479-7
739-2
705-9
674-0
Min “ ‘
0 | 25 01-98
40 | 25 03-25
50 | 24 59-88
O | 25 01-65
0 | 25 20-30
15 17-86
30 17-31
0 16-55
0 17-58
10 15-64
30 13-46
0 10-77
30 09-66
0 | 25 12-01
0 | 24 43-69
5 32-28
9 21-89
10 22-13
12 25-33
15 31-61
20 42-01
25 43-76
30 | 24 53-74
35 | 25 00-27
40 | 24 58-02
45 52-77
50 52°35
55 56-40
0 57-75
20 | 24 56-27
0 | 25 03-77
50 02-91
0 06-50
5 12-11
10 | 25 03-55
15 | 24 54.43
20 | 25 03-27
25 12-28
30 10-77
35 07-34
40 04-61
45 04-17
50 07-07
0 | 25 07-81
15 07-51
30 11-74
0 16-43
0 13-44
0 | 24 54-41
20 41-39
30 | 24 55-63
0 | 25 02-39
0 | 24 41-23
5 35-07
10 32-95
15 36-76
BiriLtaR. k=0:000135.
335
BIFILAR BALANCE Gott. BIFILAR BALANCE
Corrected. || Corrected. | Mean | DectinaTIon. || Corrected. Corrected.
Time.
Min. | Sc. Div. || Min. |Mic.Div.J ad. oh. || Min.}| ° 7 Min. | Se. Diy. || Min, | Mic. Diy.
Sept.
2 | 553-6 3 | 465-9] 21 8 || 20 | 24 37-53 | 22 | 584-4 || 23 | 495-6
42 | 538-3 || 43 | 427-9 25 39-95 | 27 | 577-5|| 28 | 506-2
52 | 545-3 || 53 | 416-1 30 37-91 || 32 | 578-4]) 33 | 478-8
2 | 543-1 3 | 404-6 35 37-26 || 37 | 555-4|) 38 | 404-8
40 37-56 || 42 | 576-8 || 38 | 421-5
2) 534-1 3 | 341-2 45 39-14] 47 | 571-6) 48 | 419-2
17 | 535-9 || 18 | 358-5 50 35-66 || 52 | 579-0] 53 | 400-1
BO) NSB BRE SB) 1) Bisiz(all 55 38-15 || 57 | 564-4) 58 | 353-7
2 | 542-6 3 | 364-64 21 9 0 48-16 2 | 554-1 3 | 343-9
2 | 563-3 3 | 452-5 5 | 24 55-53 7 | 546.2 8 | 343-1
12 | 554-5 || 13 | 470-8 UO) |) 25502-12)) 12 1° 536-2) 13 | 353-2
32 | 539-1 || 33 | 467-8 15 02-55 || 17 | 540-5 |) 18 | 376-1
2 | 566-8 3 | 459-7 20 | 25 00-48 || 22 | 543-2] 23 | 395-8
32 | 561-2) 33 | 470-2 25 | 24 55-26 || 27 | 558-7 || 28 | 394-0
2 | 537-0 3 | 477-4 30 53-98 || 32 | 551-7 |) 33 | 385-0
2 | 589-2 3 | 741-9 35 | 24 55-53 || 37 | 547-1 || 38 | 378-5
7 | 585-3 6 | 748-0 45 | 25 01-34) 47 | 551-8] 48 | 375-1
8 | 718-2] 21 10 0 02-32 2 | 551-1 3 | 376-8
11 | 600.2 15 02:94 | 17 | 558-2] 18 | 375-5
14 | 605-1]) 13 | 614-1} 21 12 O | 25 02-66 2 | 543-4 3 | 357-6
17 | 606-5|| 18 | 583-9} 21 13 0 | 24 54-52 2 | 529.7 3 | 185.4
22 | 593-4) 23 | 578-9 TE Dulecet 8 | 183-0
27 | 593-1 || 28 | 566-1 10 52-33 || 12 | 517-1) 13 | 198-6
32 | 5843]| 33 | 556-6 15 49-17 | 17 | 522-1] 18 | 233-6
37 | 552-8]| 38 | 564-1 20 47-62 || 22 | 529-8} 93 | 248.8
42 | 547-1|| 43 | 570-5 25 48-50 || 27 | 526-9} 28 | 251-8
47 | 554-7|) 48 | 561-8 30 49-84 || 32 | 522-7|| 33 | 251-8
52 | 566-6|| 53 | 549-7 40 48-70 | 42 | 532.9] 43 | 270-3
57 | 563-2|| 58 | 540-19 21 14 0 52-33 2 | 532.4 3 27 9a
2 | 563-2 3 | 529-4] 21 15 0 58-22 2, || Bye ler/ 3 | 304-6
22 | 556-4|| 23 | 493-8] 21 16 0 47-08 2 | 522-0 3 | 217-8
2 | 550-8 3 | 444-7 30 43-11 || 32 | 509-7] 33 97-3
52 | 556-4|) 53 | 289-6 40 45-85 || 42 | 525-7}! 43 24.3
2 | 579-3 3 | 228-1 50 45-67 || 52 | 534-6
7 | 553-8 8 | 200-4] 21 17 0) 46-08 2 | 525-4 3 | 141-5
12 | 560-2) 13 | 195-6 30 56:07 || 32 | 527-1] 33 | 191-6
17 | 590-6 || 18 | 178-0} 21 18 0 | 24 55-12 2 | 518-7 3 | 119-4
22 | 582.3) 23 | 173-5} 21 20 0 | 25 11-98 2 | 505-8 3 | 133-6
27 | 552-5 || 28 | 183-7 15 07-69 | 17 | 496-6] 18 | 147-6
32 | 533-5 || 33 | 186-9 25 10-01 || 27 | 492-6} 28 | 218-5
37 | 529-3 || 38 | 182-5 35 09-29 || 37 | 479-9 || 38 | 235-7
42 | 536-2|| 43 | 186-5 40 11-91 || 42 | 482-6 |) 43 | 234-7
47 | 545-3 || 48 | 193-5 50 15-18 | 52 | 493-1] 53 | 205-9
52 | 541-7]| 53 | 199-8} 21 21 0 11-51 2 | 486-5 3 | 207-1
10 12-28 || 12 | 486-6] 13 | 231-2
2) 515-0 3 | 343-0 20 16-32 || 22 | 476-7] 23 | 258-8
17 | 505-7 || 18 | 343-8 30 16-75 || 32 | 476-3) 33 | 273-6
37 | 520-1|| 38 | 343.7 40 17-58 || 42 | 469-1] 43 | 288-3
2 | 522-6 3 | 332-4 50 14-44 | 52 | 476-6) 53 | 286-3
2 | 533-6 8) |i BeXeas)| | hl Bey 0 14-10 2 | 472-3 3 | 298-4
—. — PA 23} 0 18-37 2 | 487-7 3 | 395-7
2 | 551-0 3 | 477-7 15 17-19 || 17 | 498-1] 18 | 454-0
| 22 | 554-31) 23 | 457-2 25 18-63 || 27 | 496-5 | 28 502-5
32 | 564-0|| 33 | 440-3 35 15-11 | 37 | 505-4} 38 | 524-1
2 | 555-0 3 | 413-4 45 14-87 || 47 | 516-5 || 48 | 523-8
sees — 22 0 0 15-47 2! 532-0 3 | 546-7
2 | 567-2 3 | 498-7 10 15-38 | 12 | 556-2] 13 | 574-6
7 | 578-4 8 | 505-2 20 14.78 || 22 | 541-0} 23 | 633-9
12 | 592-6|| 13 | 518-8 25 15-14} 27 | 550-1 |} 28 | 626-7
17 | 584-01 18 | 507-2 30 14-91 | 32 | 542-9|| 33 | 615-4
BALANCE. k=0-:000010.
396 EXTRA OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 22, 1846.
Gott.
Mean DECLINATION.
Time.
BIFILAR BALANCE
Corrected. Corrected.
BIFILAR BALANCE
DECLINATION. Corrected. Corrected.
in. | Sc. Diy. || Min. | Mic. Div. Min. - | Se. Div. || Min. | Mic. Div.
ad. h.
Sept.
571:3 636-94 22 3 | 25 | 25 04-78 646-6 668-3
563°8 653-9 04-28 642-7 634-5
577-7 692-1 07-34 640-0 617-2
581-9 678-7 07-02 )39- 615-8
591-2 664-6 06-53 . 602-5
628-9 693-3 08-95 27: 596-2
680-0 779-9 09-96 : 599-3
695-2 07-78 : 612-5
682-5 03-57 je 599-2
677-9 758:°1 05-29 : 2 | 581-9
708-0 776-5 05-08 : 577°3
735-2 698-4 06-26 . 574-4
707-0 08-59 Dd. 572-5
694-9 691-1 11-74 [+ 607-5
715-0 655-3 596-2
692-5 703-2 11-44 )62- 589-2
683-9 19-51 :
676-5 644.7 25-56 30- 5 612-9
661-8 24-66 : 644-8
650-9 17-42 : 666-8
629-8 11-03 : 671-4
716-8 11-30 : 672-4
657-6 26-97 75+ 674-5
759-4 31-28 : 680-0
673-0 32-69 : 689-4
30-87 : 714-1
817-1 25-29 26: 747-0
785-4 12-72 : 767-8
03-20 . 775-4
732-9 55-56 : 772-0
761-4 54-99 . 766-0
704-0 58-72 . 756-4
02-62 50- 758-2
701-1 04-17 : 763-1
07-24 : 770-3
731-3 09-86 : 7743
733-0 13-72 : 771-9
688-4 13-90 . 763-0
702-0 16-35 : 760-0
591-6 15-81 . 748-1
657-2 13-72 : 743-1
680-5 10-16 . 737-2
684-0 02-52 : 728-8
658-9 02-89 20- 718-8
629-5 03-37 23: 713-9
603-0 é 03-37 . 715-1
564-6 14-33 : 754-8
596:8 11-64 ' i 757-6
533-8 ; 13-96 )65- 5 762-8
559-4
663-1 33-70 : 750-5
685-4 47-42 : 755-5
700-0 51-11
704-2 36-59 “f 757-2
677-8 23-54 : 774-2
649-9 21-93 : 773-9
620-6 22-20 . 763-0
596-7 91-12 . 736-6
608-9 23-54 : 729-2
662-4 24-39 : 731-3
BIFILAR. k=0:000135. BALANCE. k=0:000010.
Sept. 224 1) 26m, Bifilar magnet out of the field of the reading telescope ; highest estimated reading perhaps 740 sc. diy. .
Sept. 2245 46m, ‘The bifilar magnet went rapidly out of sight ; highest estimated reading perhaps 760 sc. div. about 51™. hes
into view at 52™ 105, 4
DaiILty OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 22, 1846. 337
t BALANCE Gott. BIFILAR BALANCE Gott. BIFILAR BALANCE
1. Corrected. Mean DECLINATION. Corrected. Corrected. Mean DECLINATION. Corrected. Corrected.
Time. Time.
liy. || Min. |Mic.Div.J 4. h. || Min.] ° Min. | Sc. Diy. || Min. | Mic. Div.J 4. bh, || Min.| ° /” Min. | Se. Diy. || Min. | Mic. Diy.
Sept. Sept.
9 4 | 724-9] 22 6] 35 | 25 19-10]| 35 | 643-2] 35 | 579-1] 22 7 || 35 | 24 34-20] 35 | 517-2]) 35 | 495-7
e74 5 | 704-4 36 16-06 || 36 | 634-9 36 31-51 || 36 | 510-1 ]) 36 | 496-2
5 6 | 696-0 37 | 643-8 | 37 | 567-6 37 29-63 || 37 | 513-2] 37 | 499.7
, 7 | 689-4 38 07-25 || 38 | 664-0} 38 | 557-1 38 30-13 || 38 | 514-3] 38 | 494-8
8 39 06-73 || 39 | 663-3 39 29-73 || 39 | 525-7 || 39 | 486-3
io] 9 | 675-2 40 | 25 05-96)]| 40 | 652-5) 40 | 563-6 40. 32-99 || 40 | 534.9) 40 | 482-4
-2|| 10 | 662-8 41 | 633-5]| 41 | 573-2 41 30-78 || 41 | 526-8} 41 | 482-9
9 42 | 24 50-38 || 42 | 617-0 42 27-21 || 42 | 530-2 |) 42 | 485.4
-8 || 12 | 675-8 43 41-43 || 43 | 588-3 || 43 | 603-8 43 27-68 || 43 | 536-9) 43 | 480-9
2) 15 | 729-3 44 31-54|| 44 | 563-3] 44 | 618-3 44 27-51 || 44 | 535-6] 44 | 470-9
+31 17 | 758-3 45 25-36 || 45 | 558-4) 45 | 608-8 45 25-96 || 45 | 522-3) 45 | 462-5
-2|| 20 | 773-2 46 24-18|| 46 | 557-8 ]) 46 | 583-9 46 25-90 || 46 | 517-2) 46 | 455-0
-9|| 22 | 759-9 47 28-38 || 47 | 557-3|| 47 | 530-9} 47 25-53 || 47 | 516-0] 47 | 454-1
-1 |} 25 | 735-3 48 40-29 || 48 | 552-1 ]) 48 | 464-4 48 24.68 || 48 | 516-5
-9 || 27 | 724-6 49 51-16 || 49 | 542-4 || 49 | 453-9] 49 23-20 | 49 | 511-7]|) 49 | 433-4
2\| 30 | 746-7 50 51-90 || 50 | 533-5) 50 | 450-9 } 50 20-38 || 50 | 507-0 || 50 | 427-1
-7|| 38 | 812-6 51 | 526.7 51 18-40 51 | 503-1] 51 | 4192-7
-6 || 43 | 795-5 52 55-70 || 52 | 525-4) 52 | 443-5 52 16-28 || 52 | 504-6] 52 | 392.8
9 || 48 | 802-9 53 | 526-6 53 15-74 || 53 | 511-3) 53 | 378-3]
4. 2 54 57-08 || 54 | 521-7 |) 54 | 397-0} 54 16:55 || 54 | 513-1]) 54 | 356-8 |
d) 55 | 24 57-51/|| 55 | 522.7] 55 | 411-0 55 17-89 | 55 | 514-3) 55 | 335-5]
. 53 | 768-8 56 | 512-6] 56 | 391-1 56 19-03 | 56 | 514-51 56 | 332-0
5 57 | 25 08-141] 57 | 481-6 || 57 | 374-6 57 18-36 || 57 | 511-7|| 57 | 326-0
58 | 454-9 58 18-36 || 58 | 512-6] 58 | 314.0
2/| 58 | 717-9 59 | 448-6 ||.59 | 335-2 59 19-50 || 59 | 514-2]) 59 | 301-6
9 22—7 0 11-57 0 | 446-9 0 | 320-3] 22 8 0) 21-92|| O | 515-0 0 | 290-2
5 1 | 451-4 1 23-34 iL i Byileyor!
8 2) 491-3 2 20-06 2 | 463-6 2 | 268-4 2 24-68 2 | 515-4 2 | 279-2
9) 3 | 453-3 3 | 370-0 3 | 257-6 3 26-64 3 | 515-4 B) || arp)
4 | 432-2 4 26-87 || (out |of field) 4 | 227-0 4 27-80 4 | 514-6] 4 | 266-3
8 || 5 | 422.3 5 24-55 5 | 177-0 5 29-80 5 | 510-9 5 | 260-8
5 6 | 429-8 6 30-91 6 | 131-5 6 32-12 6 | 506-4 6 | 252-4
7 | 457-8 a 39-35 iG 96-1 7 32-89 7 | 503-1
7 8 50-37 8 | 162-1 8 33-26 8 | 502-1 8 | 236-9
6! 9 | 489-3 9 52-90 9 | 300-1 9 33°33 9 | 499-6 9 | 231-4
8|| 10 | 499-4 19 43-79 || 10 | 461-5 ]| 10 | 382-5 10 33-49 | 10 | 494-9|| 10 | 223-0
10-8 11 27-24|| 11 | 492-5 11 34-40 |} 11 | 490-7) 11 | 218-0
121 12 15-94 || 12 | 483-2] 12 | 346-7 12 34-13 | 12 | 486-9 || 12 | 207-6
413 )) 13 | 531-5 13 09-89 || 13 | 484-5 ]/ 13 | 330-2 13 33°93 | 13 | 485-2)| 13 | 200-1
961) 14 | 553-5 14 | 25 05-69 || 14 | 481-7]) 14 | 336-8 14 34-08 || 14 | 484-6] 14 | 190-1
183) 15 | 596-6 15 | 24 58-05 || 15 | 478-1 |) 15 | 342-8 5) 34-32 || 15 | 482-6]) 15 | 184-2
981} 16 | 630-1 16 53-67 || 16 | 475-5 |] 16 | 358-9 16 35-19 || 16 | 480-9] 16 | 172-2
57.0 || 17 | 648-6 17 51-99 || 17 | 483-8]| 17 | 365-4 17 37-46 || 17 | 479-4]| 17 | 163-3
6710 18 51-91 || 18 | 492-2]) 18 | 368.4 18 38-91 || 18 | 477-8]|| 18 | 159-3
1] 19 | 642.6 19 53-17 || 19 | 509-7} 19 | 370-9 19 39-21 || 19 | 475-1} 19 | 153-9
j 0 | 20 | 656-5 .20 56-90 || 20 | 526-3 20 38-80 || 20 | 473-5) 20 | 154-0
0 | 21 | 24 59-26|| 21 | 546-8|| 21 | 368-5 25 39-41 || 25 | 463-3|) 25 | 117-3
59:1 || 22 | 681-2 22 | 25 04-71)| 22 | 560-5 ]) 22 | 388-6 30 41-84 || 30 | 439-9) 30 76-2
5 331 || 23 | 686-2 23 | 25 01-98 || 23 | 564-8]) 23 | 405.6 32 44-12|| 32 | 432-9] 32 58-3
5816, 24 | 24 59-16|| 24-| 563-3 || 24 | 417-6 35 44-16 || 35 | 435-1} 35 27-4
8/4 || 25 | 670-4 25 57-71 || 25 | 561-6|| 25 | 440-2 37 45-31 || 37 | 430-6|| 37 |+ 0-5
59/0 || 26 | 654-8 26 54-18 || 26 | 559-7 || 26 | 460-7 40 45-98 || 40 | 429-5}| 40 | —19-9
‘10 || 27 | 646-8 27 46-90 || 27 | 564-9 || 27 | 462.3 42 46-48 || 42 | 442-1] 42 |— 22.4
71/0 28 43-65 || 28 | 575-4]| 28 | 456-8 45 46-95 || 45 | 464-0}| 45 |—13-3
70'0 || 29 | 665.4 29 43-55 || 29 | 574-8 || 29 | 440-8 48 52-13 || 48 | 479-4|| 48 |4+ 2-9
57,9 || 30 | 682.4 30 45-69 || 30 | 564-5 || 30 | 448-4 53 49-91 || 53 | 492-4|| 54 |4+47-6
8] 31 | 672-0 31 41-50 || 31 | 547-0] 31 | 463-4 55 58-92 |) 57 | 495-9|| 58 |+ 62-0
59\7 || 32 | 637-8 32 41-23 || 32 | 542-9] 32 | 474.0] 22 9 0 58-47 2 | 490-8 3 |+71-6
60)9 | 33 | 598-5 33 37-46 || 33 | 534-9] 33 | 486-0 5 51-22 7 | 457-9 8 |}+30-8
63/21 34 | 577-0 34 35-42 || 34 | 525-7|| 34 | 490-6 10 48-30 || 12 | 449-7], 13 |— 2-1
BIFILAR. k=0:000135. BALANCE. k=0:000010.
i. 7 3m 20s, The bifilar scale went out of sight. The force was least perhaps about 7™, when the estimated scale reading would pro-
y Bless than 300 sc. div.
i
Mi AND MET. OBS. 1846.
a
4a
338 EXTRA OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 22—OcTOoBER 8, 1846.
vee D = BIFILAR BALANCE ea teeters Brrinar || BALANCE
ane ECLINATION. Corrected. Corrected. ean INO Corrected. Corrected.
GIN Joke Min. oO v Min. | Sc. Div. || Min. | Mic. Div. : U Min. | Se. Div. | Min. | Mic. Div.
Sept.
22 9 || 15 | 24 47-69] 17 | 440-7|| 18 |—33-3 25 01-95|| 2] 535-3] 3 | 359-9
| 20 50-51 || 22 | 432.8 || 23 |—47-6 02-01] 2 | 547-1|| 3 | 352-6
25 53-71 || 27 | 414-7 || 28 |—64.3 oS ee es
30 55-09 | 32 | 395-2] 33 |—83-7 25 00-17|| 2 | 552-5] 3 | 344-3
35 57-64 || 37 | 372-0] 38 |-116-5 24 54.41|| 2 | 557-5|) 3 | 336-5
| 40 54-95 || (out jof field)| 43 |-135.2 25 01-95|| 2 | 546-2] 3 | 351-3
45 54-12 48 |-105-7 22) eo
50 51-32 53 |—68.4 |
55 47-35 5S | 71a 24 49-77|| 2] 545-7] 3 | 362-1
22 10 || 0 47-59|| 4 | 374. | 3 |-21.6 24 58.38 || 32 | 550-8] 33
5 22-84 | (out lof field)| 8 |—60-4 25 03-85 || 2| 549-8] 3 | 344-7 |
10 | 24 4-91 Sear Ss ree feme! Se Hd
Vielen Oise 0 | 24 48.30 Dar 5 55-7, 3 0}.
12 53-18 123] — 60-9 55-76 || 17 | 545-1]) 18 0
13 57-35 57-58 | 42 | 546-8] 43 0}
14 56-88 143|-— 77-8 57-24|| 2| 536-9) 3 0 |
15 51-43 53-52|| 2 | 539-7] 3 : ol
16 51-38 1631_-106-3 51-86 || 12 | 546-6] 13 | 263-5 30 |
17 57-25 | (out lof field)| 173 144-6 50-65 || 22 | 341-3| 23 | 26241 8 1] OFF
18 55-09 48.45 || 32.| 534-4| 33 | 262-0] 8 2] O}F
19 | 23 59-17 46-31 || 42 | 535-1) 43 3 15 |
20 | 515-8] 20 |-198-8 46.34 || 52 | 538-0|| 53 20 ;
22 | 502.9] 22 |-287-8 46-19 || 2 | 539-4] 3 |
23 | 24 25-02] 24 | 476-9] 24 |-356.3 48-23 || 12 | 527-3|| 13 :
25 36-65 || 26 | 440-3) 26 |-361-3 48.23 || 22 | 527-1|| 23 |
27 45-60 || 28 | 440.4|| 28 |-296-8 Vee Soe ea — |
29 49-41|| 30 | 476-1|| 31 +-164-8 0 | 24 53.58|| 2] 549-8|| 3
32 46-95 || 33 | 505-7 || 333/—98-3 50-08 || 12 | 553-5 || 13
34 39-72|| 35 | 511-2]) 35 114.3 55-83 || 22 | 546-4] 23
36 41-57 || 37 | 506-2]) 37 |-124-3 56-70 || 2 | 525-8] 3
38 47-62 || 39 | 518-2|| 39 |-120.3 30-60 || 9 | 538-9
40 49-64 || 41 | 513-2]| 41 |—72.8 33-37 || 12. | 541-4|| 13
42 47.82|| 43 | 518-4] 43 |—61-8 34-97 16
44 49-37 || 45 | 523-2|| 45 |—52.3 17 | 555-8 || 18
46 49.95 || 47 | 525-0] 47 |—32.3 19 | 560-1
48 50-62 || 49 | 520-9|| 49 |-18-3 38-71 || 22 | 567-2|| 23
50 51-96] 52 | 519-2|| 53 |— 0.8 24 49.27 || 27 | 563-3 |) 28
55 54-36 || 57 | 517-4] 58 |4+ 2-7 25 04-08 | 32 | 543.0|| 33
22 11 || 0 | 24 55-29] 2 | 504-2] 3 |—21-3 15-17 || 37 | 502-9|| 38
5 | 25 00-50] 7} 513-9 8 |— 9.3 39 | 499.3
10 03-43 || 12 | 517-2] 13 |— 5.4 25 09-46 || 41 | 495.7
15 05:96 | 17 | 512-2|| 18 |—28-0 42 | 497.0|| 43
20 04-98 | 22 | 516-9]| 23 |—15-3 24 44.73|| 44 | 505-8
43-82 || 47 | 525.9|| 48
22 18 | 0 18-47 || 21] 540-6] 3 |4+210.4] 44:12 || 49 | 534-6
20 10-20 | 22 | 543-8|) 23 | 229.2 44.90 || 52 | 537-01) 53
2219 | 5 03-30] 7 | 546-3] 8 | 263-3 43.45 || 57 | 537-4|| 58
22 20 | 0 | 25 02-42] 2 | 5365] 3 | 301-1 50-51|| 2 | 530-5]| 3
Bees eee ee Tee ree 51-46] 7 | 530-8|| 8
24 8 | 0 | 24 52.57] 2|.571-3] 3 | 344-6 51-02 || 12 | 538-2|| 13
| 10 | 25 00-10] 12 | 554.1) 13 | 351-9 52.33 || 17 | 536-7|| 18
| 25 | 24 58-42|| 27 | 547-3] 28 | 355-6 54-41 || 32 | 542.4 || 33
24 9|| 0 | 25 04-68] 21} 549-1] 3 | 355-3 56-01 || 47 | 524-1 |] 48
24 10 || 0 | 25 00-40] 2 | 548-0] 3 | 360-5 55-53 || 2| 524.0] 3
in ea 2 rey es SE ae 24 56-03 || 17 | 537-9 || 18
28 7 (|| 0 | 24 56-23]) 2] 581-4] 3 | 350-7
| 10 52-57 || 12 | 563-8] 13 | 348-4 24 50-08 || 2| 558-4|} 3 |-218-6
| 20 51-39 || 22 | 567-4|| 23 | 344-9 24 58-82|| 7 | 477-2|| 8 |-187-0
| 30 | 24 54-431] 32 | 565-0] 33 | 345-1 25 04-53 || 12 | 488-5 || 13 |-143-2
28 8 || 0 | 25 00-94] 2] 547-0] 3 | 358-8 12.45 || 17 | 492-5 || 18 |-123-9
BirinaR. k=0:000135. BALANCE. k=0:000010.
Sept. 224 95 35m, The bifilar scale again went out of sight, it just came into sight at 105 4m, and did not reappear again ti 11
j
=
DPOTOOOCWRDORAwWNwMAVNWIA
—~— See SK Ow
ExtTrA OpSERVATIONS OF MAGNETOMETERS, OCTOBER 8—NOVEMBER 17, 1846.
BALANCE
Corrected.
Gott
Mean DECLINATION.
Time
ahs «WME, MO e ¢
Oct.
8 3 24 | 24 46-33
25 47-42
26 48-70
27 53-47
29 | 24 56-97
30 | 25 01-04
35 04:78
40 15-91
45 11-64
50 | 25 07-17
55 | 24 57-81
8 4 O | 25 14-71
5 20-32
10 07-20
15 08-85
20 11-84
25 10-83
30 11-77
40 17-91
45 08-80
55 14-40
8) 5 0 16-35
5 07:79
10 01-38
15 00-47
20 01-58
25 00-17
|| 30 | 25 02-19
|| 40 | 24 48.43
45 49-91
50 50-38
55 47-56
8 6 0 51-59
5 51-59
10 48-83
6 45-89
20 53-54
25 57-84
30 55-26
41 55-76
50 | 24 58-49
8 7 0} 25 02-01
8 8 0 06-21
10 03-94
20 08-82
25 04-04
395 03-77
50 02-22
8 9 0 03-13
30 05-45
8 10 0 05-18
9 8 0 | 25 10-67
40 00-27
9 10 0 01-75
9 18 0 | 25 04-64
9 19 0 16-72
BIFILAR.
BIFILAR
Corrected.
Se. Div.
638-4
644-0
647-7
646-7
647-3
645-5
641-1
654-9
647-0
630-4
603-4
617-3
610-1
593-4
588-7
594-7
583-2
571-5
568-1
572-1
577-6
571-6
590-9
591-9
569-5
559-6
k=0-000135.
339
BALANCE Gott. BIFILAR BALANCE
Corrected. Mean DECLINATION. Corrected. Corrected.
Time
Min. |Mic. Div. da. Fie Min.} ° 4 Min. | Se. Div. || Min. |Mic. Div
ct.
24 | 700-4 9 19 10 | 25 16-95] 12 | 535-0) 13 | 147.3
25 | 681-4] 40 18-77 || 42 | 533-8 || 43 | 174-0
26 | 664-1 9 20 0 11-98 2! 534-5 3 | 189-0
27 | 666-0
28 | 669-9} 10 4 0 | 25 15-27 2 | 551-1 3 | 578-7
30 | 662-3 20 13-63 || 22 | 552-3 || 23 | 550-6
32 | 664-11 10 5 0 11-66 2) 555-6 3 | 522-0
38 | 766-8 10 6 0 04-91 2 | 544-1 3 | 432-1
43 | 805-1 | ———--—|——_ > —_
48 | 774-3] 13 7 O | 24 53-95 2 | 565-3 3 | 357-6
Da |eeoonl ; 10 | 24 56-10} 12 | 560-4]) 13 | 358-6
58 | 636-7} 13 8 0 | 25 02-66 2 | 547-2 3 | 358-7
3 | 666-6 — —||——_|- || _-
8 | 717-9] 22 6 0 | 24 47-66 2 | 537-6 3 | 395-6
13 | 682-4 a 38-80 7 | 543-1 8 | 383-1
18 | 642-1 10 34-63 || 12 | 569-2|| 13 | 369-3
23 | 631-9 15 39-58 || 17 | 579-4]) 18 | 365-9
28 | 606-9 20 46-08 | 22 | 573-7) 23 | 365-3
33 | 606-1 } 30 55-29 || 32 | 555-3 || 33 | 363-0
43 | 640-7 45 52-24 || 47 | 527-2|| 48 | 376-4
48 | 621-5] 22 7 0 | 24 53-00 2 | 534.4 3 | 375-7
58 | 619-4 30 | 25 00-60) 32 | 538-5 || 33 | 360.4
3 | 707-2} 22 8 0 02-84 2 | 541-7 3 | 360-6
8 | 700-4) 22 9 | 45 02-15 || 47 | 548-7 || 48 | 259.9
13 | 629.4 50 02-28 || 52 | 551-7|| 53 | 259.4
18 | 596-0] 22 10 0 03-70 2 | 555-6 3 | 266-1
23 | 584-5 —||_———__—— |] —
28 | 585-2] 24 8 0 | 24 51-52 2 | 566-2 S| Bier’
33 618-9 | 10 | 24 54-75 || 12 | 581-9] 13 | 315.9
43 | 614-4] 24 9 0 | 24 59-46 2 | 550-4 3 | 319-2
48 | 578-6} 24 10 0 | 25 03-20 2 | 552-7 3 | 318-8
53 | 570-8 —|| ——_|——_———_|| —.
58 | 550-4] Nov.
3 | 544-4 T*8 OQ | 25 00-74 2 {| 540-1 3 | 334-9
8 | 545-6 15 | 24 56-60]) 17 | 536-4)) 18 | 348-1
13 | 542-7 40 56-61 || 42 | 531-6} 43 | 339-0
18 | 519-9 7 91 50 46-32 || 52 | 518-6]| 53 | 267-9
23 | 510-1 Bt) 46-11 )| 57 | 517-4|| 58 | 256-5
28 | 509-7 7 10 0 46.68 2 | 520-6 3 | 251-6
33 | 502-6 10 49.75 || 12 | 515-0] 13 | 246-8
43 | 478-0 —||———
53 | 477-41 17 6 0 | 25 13-30 2 | 564-3 3 | 286-3
3 | 472-6 30 37-95 || 32 | 544-8 || 33 | 457-9
3 | 429.2 35 37-64 || 37 | 626-9
13 | 402.4 37 31-82 || 38 | 655-9 || 38 | 673-5
23 | 402-3 | 39 27:17 || 39 | 662-2
28 | 395-4 40 | 646-4] 40 | 704.4
38 | 390-7} 41 21-53 || 41 | 620-2
53 | 382-4 42 | 622-7|| 42 | 688-1
3 | 375-5] 43 16-90 || 43 | 625-0
33 | 352-7 44 | 620-9 || 44 | 685-2
3 | 344-1 45 16-77 || 45 | 626-0
aed ; | 46 26-05 || 46 | 654-7 |
3 | 389.7{ 47 19-44 47 | 669-8 || 47 | 692.4
43 | 371-8 48 20-35 || 48 | 688-0 || 48 | 695-4
3 | 329-5 49 23-34 || 49 | 690-5 || 49 | 694-5
50 22-40 || 50 | 667-3 || 50 | 695-5
Sl 19-78 | 51 | 648-8] 51 | 697-1
3 95-9 | 52 18-16 || 52 | 639-3 || 52 | 698-6
3 | 138-0 53 17-60 || 53 | 636-0! 53 | 708-7
BaLaNncE. k=0:000010.
340 | EXTRA OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 17—26, 1846.
Gott. BIFILAR BALANCE Gott. BIFILAR BALANCE Gott.
Mean DECLINATION. Corrected. Corrected. Mean DECLINATION. Corrected. Corrected. Mean
Time. Time. Time,
d. h. || Min. G v Min. | Se. Div. || Min. |Mic. Div. a. h. || Min. 2 i Min. | Se. Div. || Min. |Mic. Div. d h. ;
Nov. Nov. Nov. |
17 8 || 54 | 25 15-59] 54 | 636-9|| 54 | 714-4] 17 7 || 30 | 25 29-06|| 30 | 627-7 17s |
55 13-72 || 55 | 619-0]| 55 | 716-9 31 27-55 || 32 | 593-1]; 33 | 765-9 |
56 11-61 || 56 | 607-4|| 56 | 721-0 34 23-81 j
57 08-58 || 57 | 603-4 35) 23-21|| 35 | 625-2|| 35 | 763-4 |
58 06:07 || 58 | 611-2}| 58 | 740-1 36 22-40 || 36 | 631-4
59 05-11 || 59 | 621-1|| 59 | 756-8 37 20-40 || 37 | 637-3}| 37 | 765-2 |
end, 0 05-79 0 | 634-2 0 | 778-9 38 18-23 || 38 | 639-4|| 38 | 777-6 |
1 | 661-5 1 | 797-6 39 18-90 || 39 | 649-9 || 39 | 786-2 I
2 02-75 2 | 652-7 2 | 811-7 40 12-22 || 40 | 665-4]|| 40 | 787-3 }- i
3 02-12 3 | 666-8 3 | 823-4 41 11-77 || 41 | 672-9|| 41 | 782-0
4 | 25 00-40 4 | 663-1 4 | 844.8 42 11-71 || 42 | 685-0]| 42 | 778-2 {'
5 | 24 58-92 5 | 669-8 5 | 847-8 43 13-05 || 43 | 688-0|) 43 | 779-9 ,
6 57-31 6 | 679-3 6 | 859-4 44 | 692-0|| 44 | 776-9
a 58°59 7 | 689-6 7 | 869-6 45 08-75 || 45 | 702-0
8 | 24 59-59 8 | 698-9 8 | 877-3 46 | 704-0|| 46 | 761-4
9 | 710- 9 | 883-0 47 10-28 || 47 | 706-0
10 | 25 00-74 (out of field)|| 10 | 891-6 48 | 695-0]! 48 | 786-4
11 | 894.3 49 10-36 || 49 | 691-0
12 08-95 12 | 899-9 50 | 692-0} 50 | 780-4
13 08-68 || 13 | 684-0}) 13 | 901-7 51 12-15 || 51 | 696-0 179
14 04-04 || 14 | 656-5 |) 14 | 890-4 52 | 695-0 |) 52 | 787-3
15 01-05 || 15 | 651-0}} 15 | 873-0 53 10-70 || 53 | 698-0
16 01-11 || 16 | 656-6 || 16 | 864-7 54 | 704-0|| 54 | 792-6
17 04-01 || 17 | 649-2|| 17 | 847-9 55 09-93 || 55 | 707-0 ;
18 05-69 || 18 | 652-2)| 18 | 825.2 56 | 695-0|| 56 | 797-5
19 16-19 || 19 | 667-5 || 19 | 808-8 ial 05-92 || 57 | 677-0 17 10
20 09-56 || 20 | 681-0}} 20 | 796-8 58 | 674-0 || 58 | 796.8 |———_
21 13-32 || 21 | 681-7 |} 21 | 801-5 59 | 686-0 26° 4
22 14-51 || 22 | 693-2|| 22 | 801-2] 17 8 0 08-11 0 | 682-0
23 18-40 || 23 | 710: 23 | 807-4 1 | 674-0 1 795-3
24 21-56 || 24 | 684-0]} 24 | 814-4 2 11-03 2 | 671-0
25 27-01 || 25 | 666-1 || 25 | 812-9 3 | 657-0 3 | 796-8
26 30-04 || 26 | 659-6/|| 26 | 810-9 4 08-82 4 | 648-5
27 30-38 || 27 | 642-7 || 27 | 799-5 5 | 648-9 5 | 790-4
28 29.66 || 28 | 637-2|| 28 | 790-3 6 05-29 6 | 647-0
29 27-84 || 29 | 643-2 || 29 | 786-9 7 | 650-4 7 | 796-6
BIFILAR. k=0:000135. BaLANCE. k=0:000010.
Nov. 174 9 45™, Clock 215 slow; set right.
~
- Extra OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 17—DEcEMBER 24, 1846.
341
Gott. BIFILAR BALANCE Gott. BIFIL
I, eel Mean DECLINATION. Corrected. Corrected, | Mean DECLINATION. Genet siete ;
Time. Time.
iy. || Min. | Mic. Div. d. h. | Min I ls Min.} Se. Diy.}} Min. | Mic. Diy. d. h. |} Min. & Ms Min. | Se. Diy. |} Min. | Mic. Diy.
Ov. Nov.
6 2 4/1 50! 25 10-80|| 52 | 564-8]} 53 | 394-7] 26 20 || 30 | 25 06-32]| 32 | 547-7|| 33 | 288.2
6 9} 801-0} 26 5 0 14-91 2 | 568-7 3 | 402-8] 26 22 0 08-18 2) 553-2 3 | 303-5
2 15 08:14 || 17 | 554-1 ]| 18 | 431-2 —||—— |__| —__ —|———
-6|| 11 | 803-5 30 07-71|| 32 | 559-7 |) 33 | 426-14 Dee.
9 26 6 0 11-77 2 | 596-2 oNloo vel 9 8 0 | 25 05-65 2-| 561-6 3 | 278-8
3{ 13 | 792-1 7 | 598-3 8 | 576-9 9 9] 15 | 25 05-11} 17 | 549-1 ]] 18 | 293-7
-7\| 15 | 789-5 10 14-50 |) 12 | 601-2|| 13 | 573-4 9 10 0 | 24 40-47 2 | 560-5 3 | 302-2
U7 Ne782:3 15 96-87 || 17 | 582-2]! 18 | 640.5 5 41-70 7.| 558-8 8 | 293-0
‘1 || 20 | 803-2 20 20-69 || 22 | 590-5 || 23 | 682-1 10 43-62 || 12 | 558-8 || 13 | 2992.5
9 25 20-72|| 27 | 577-6 || 28 | 688-0 —||—_|—____—___}j___ ——
§1|| 23 | 819-0 30 93-24 || 32 | 563-1 || 33 | 691-7] 23 6 O | 24 58-60 2 | 552-8 3 | 340-5
4} 26 | 818-3 35 17:73 | 37 | 584-7]| 38 | 714.2 30 47-76 || 32 | 563-7 || 33 | 348-8
7\| 28 | 764-5 40 16:32 || 42 | 576-7 |] 43 | 707-1 50 52-03 || 52°] 561-1]] 53 | 332-3
3 || 33 | 745-0 45 19:37 || 47 | 585-1]| 48 | 710-84 23 7 O | 24 56-67 2 | 559-5 3 | 324-0
6|| 38 | 773-4 50 94-12} 52 | 575-4]| 53 | 745-44 23 10 0 | 25 08-88 2 | 551-9 3 | 143-3
8|| 43 | 806-6 55 14-43 || 57 | 594-0]! 58 | 787-7 5 | 25 07-54 7 | 540.4 8 | 160-1
3] 48 | 814-4] 26 7 0) 10-09 2) 597-4 3 | 832-7 10 | 24 59-53] 13 | 554.8]) 14 | 143-3
H6) 53 | 818-2 5 | 25 00-33 7 | 596.0 8 | 830-9 15 | 25 02-72} 17 | 555-9|) 18 | 142-6
§7 || 58 | 806.8 10 | 24 55-60]| 12 | 558-0]] 13 | 764-6 20 04-91 || 22 | 553-2|| 23 | 150-5
5 3 | 774-7 15 49-07 || 17 | 554-0 25 06-12 || 27 | 547-7|| 28 | 149-9
5 8 | 749-5 20 48-23 || 22 | 533-4/| 23 | 622-0 30 05-79 || 32 | 543-0] 33 | 137-5
mits | 735-1 25 50-85 || 27 | 535-6]|| 28 | 604-4 35 07-78 || 37 | 531-0}|| 38 | 133-6
9|| 23 | 666-1 30 49-71 || 32 | 524.4]! 33 | 577-8 40 05-90 || 42 | 517-4] 43 | 134-8
§|| 33 | 579-3} 40 41-97 || 42 | 525-5} 43 | 507-8 45 | 25 01-72) 47 | 510-1]| 48 | 144-1
8 48 | 500-4 45 44-90 || 47 | 532-7 || 48 | 490-7 50 | 24 53-45 |) 52 | 519-1] 53 | 158-0
5 3 | 466-0 55 53-00]] 57 | 535-6] 58 | 468-3 55 47-49 || 57 | 532-7] 58 | 162-9
—— 26 8 0 54-55 2 | 535-6 3 | 460-9} 23 11 0 46-48 PAN Bier! 3 | 168-1
1 3 | 470-4 30 57-31 || 32 | 533-2]| 33 | 393-2 5 45-98 7 | 545-3 8 | 175-8
1} 13 | 459-7} 26 10 0 | 24 45-81 2 | 575-3 3 | 231-0 10 47-96 || 12 | 542-5|| 13 | 177-8
0) 18 | 459-8 10 | 25 00-64}} 12 | 564-2]! 13 | 205-9 15 50-38 || 17 | 535-9
23 | 442-7 20 | 25 00-50) 22 | 541-3 || 23 | 188-8 20 51-27 |) 22 | 533-2] 23 | 176-4
9|| 28 | 425-0 30 | 24 58-62] 32 | 546-9]] 33 | 128-4 30 54-77 || 32 | 542-2]| 33 | 180-3
21 33 | 419-8 40 | 25 O1-01}} 42 | 558-7 || 43 | 127-2 oo —e —_
38 | 410-6 24 20 0 | 25 07-69 2 | 558-2 3 | 270-2
9|| 43 | 407-5} 26 20 0 10-90 2 |-538-3 3 | 279-6 15 07-49 || 17 | 561-5] 18 | 254-2
48 | 405-5 16 14:10} 17 | 530-5|| 18 | 289-2} 24 22 0 04-51 2 | 559-9 3 | 249-9
BiFinaR. k=0°:000135. BALANCE. k=0:000010.
|
oe
™*)| AND MET. os. 1846. 4R
‘
342 Novres To THE ExtTRA OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 25—SEPTEMBER 11,
NOTES ON THE AURORA BOREALES SEEN AT MAKERSTOUN.
ae iM. j
Feb. 25 "9 50. Auroral arch, upper margin passing through « Cygni.
55. Auroral arch, lower margin passing through # Cygni.
10 0. Arch 1° higher, steady; reaches from W by N. to NE by N. i
10 10. Arch nearly as before ; the eastern termination is rounded like portion of a circle, but the weste
termination, which is brightest, is sharp, starting in a nearly straight line, making an acute a
with the horizon.
35. Arch much fainter, the lower edge passing through « Cygni.
11 40™—50™. Bright fee oaiil arch like ermine, about 7° altitude ; black sky (?) within, ultimately b 0
up into several small arches with short streamers.
12 15, The arch is rather irregular, and consists solely of pencils. J
19. Arch irregular, but light more homogeneous. “
Feb. 26 10 30. Auroral light to N., with faint streamers shooting from the horizon. ‘
Mar. 16 8 55. Auroral light to N., to an altitude of 12°; partially obscured by clouds; throwing out fai
streamers. : &
9 0. Aurora obscured by clouds. -
9 40. An auroral belt passing through 4 Orionis and between Castor and Pollux; rather nearer Cast
than Pollux. >
34, The belt broken into two ; probably the whole semicircle would be visible if the sky were clear,
seen through haze. ‘
42. The arch is 4° broad, it passes south of Pollux through y Orionis and y Gemimorum to 45° al tite a
from E, horizon, where it is lost behind clouds ; the arch is now single.
45. The arch passes between a and y Orionis, south of Pollux and through ¢ Bootis. 50™. Thea ar
has a bend towards the south between the zenith and Orion. :
54. The arch fainter, passes through « Orionis and ¢ Bootis, it is about 3° broad. 55™. It now pass
about 4° to south of « Orionis, and 3° to south of ¢ Bootis. 4
10 3. Arch disappearing about the zenith. 10™, Arch still visible but very faint. 15™. Arch gone.
11 35. Auroral light seen throughout the night above the clouds on the N. horizon.
April 6 11 40. The sky has been somewhat milky to N., but owing to the moonlight and clouds it could not wi
certainty be called aurora. The sky throughout the evening generally covered with rather Ia
cirro-cumuli, a species of cloud which, if my memory serves, is rather common under the auspic
of an increasing or nearly full moon (B. )
13 8, Faint auroral light to NW. ? the clouds have moved off in that quarter, the sky merely looks mil
there however.
18. There is no doubt that there is a faint aurora. :
April 16 10 45. Faint auroral light to N.; it has appeared the same for some time, and no streamers have bet
observed.
11 35. Sky becoming overcast; light still seen to N. 13" 35™, Sky overcast.
Aug. 24 11 165, Diffuse auroral hight with occasional faint streamers. 20™. Faint streamers to NW.
Aug. 27 10 15. Diffuse, faint auroral light seen among the clouds; a faint broad beam to W by S., stretching t
wards the zenith ; much obscured by clouds.
25. Streamer rises from W by S., pointing south of zenith, another streamer is connected with it
about 15° altitude, the latter passes through the zenith. Auroral patches to N,
40. Streamer to W by S., narrow and distinct, making an angle of about 10° or 15° with the aire
through the zenith and W by S.
45, The origin of the streamer has moved further south on the horizon, but it is now very fair
Auroral bank to N., altitude about 10°. Cloudy to E., S., and N. Sky chiefly from N. to ¥
and to SW.
11 10. An auroral arch or bank, rather patchy and irregular ; occasionally short dumpy streamers. 19
Arch pulsating. 20™. Only the NW. quadrant visible, continuous and rapid pulsation as hig
as Ursa Major.
23. Patches disappeared, to a considerable extent. 26™. Patches reappeared but not so bright as hefo
36. Faint streamers from NW. horizon. 39™. Streamers bright.
41. Brightest streamer to WNW. 45™. Much fainter. 55™. Aurora nearly disappeared. Sky b
coming overcast.
Aug. 29 10 25. Slight magnetic irregularities ; aurora looked for, but none visible.
Sept. 10 9 40. Faint auroral arch about 7° altitude.
Sept. 11 10 34. Auroral beam 2° broad, rising to an altitude of 20° from W by S.; the rest of the aurora very fait
45™, Beam still continues, but fainter and shorter. 50™. Aurora very faint; the beam has di)
appeared.
fo ES TO THE EXTRA OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 21——DECEMBER 8, 1846. 343
}
| NOTES ON THE AURORA BOREALES SEEN AT MAKERSTOUN.
|
| Gab. mM.
ww
| Gott. M. T.
pt. 2113 0. Aurora to N., consisting chiefly of patches of light and bundles of streamers to an altitude of 40°,
with incessant pulsation throughout the whole extent of the aurora; the aurora is not very
bright, and it is obscured to a considerable extent by a black mass of clouds.
15. No material change in the aurora; it has a very confused appearance ;—an indescribable mass of
bundles of streamers and patches, with incessant and rapid pulsation.
| 13 30. Aurora become fainter.
t $8 8 20. Auroral light; fet streamers to N. and NW.
it 9 8 5. Several bright streamers sprung up from NNW.
t, 22 10 Faint auroral light seen through an opening in the clouds ?
By. 17 7 34, Bright aurora over the sky ; partially cloudy ; quite overcast a little ago. A portion of an arch to
south, perhaps 30° (?) altitude from SSE.
36. About this minute a bright patch of auroral light seen to ESE., altitude about 30°.
41. Broad streak of aurora reaching from SW. to SSW. ; altitude of the middle of the streak at its ter-
mination in azimuth § 20° W, is 18°. Diffused auroral light, mixed with cirrous clouds ; hazy
and dark spaces ; difficult to say where the aurora is bounded, or whether it be cut off by clouds.
43. The aurora forms a bay to SW.; bright to NE., from an altitude of 10°, over zenith to W.; dark
space to SW.; bay to W., persistent.
46. Centre of bay, 17° altitude, very bright above W 27° S. There seems no cloud in the dark space
at the bay, yet the stars seem dimmer in it than in the bright light of the aurora; cirrous clouds
to N., formed of parallel linear cirri.
) 50. Outline of auroral bay, like a reaping hook, the end of the handle in the horizon about W 30° S.;
the top of the handle, altitude 8° above W 44° S.; the middle of the hook, 13° altitude above
W 26° S.; and the top of the hook, 27° altitude above W 53° S. The light extends among
the clouds to N. and NE. up to the zenith.
51. The auroral light extends to the south of the zenith, about 70° altitude above SSW., where it mixes
with a light cloud, from which it can scarcely be distinguished ; aurora on SE. horizon, or cloud. ?
56. The clouds are moving off to E. The light to NE. springs from cloud, altitude 9°; its eastern
extremity is at E 20° N.
8 0. Incipient streamers amidst light to NE. and to W by N. The light is retrograding towards N., and
has nearly attained the W. and NE. points of the horizon.
2. Streamers more distinct to NE,
3. A streak of aurora, unconnected with the horizon, has appeared suddenly to 8. The streak is
about 2° broad and 10° long, and the middle of it (both as regards length and breadth) is due
south, at an altitude of 12°. The streak disappeared in a minute or two.
Incipient arch springs from W., altitude of summit 26°.
Light about equally luminous to NE. and WSW.; slightly more concentrated at the former. As
the clouds clear off, the greater part of the sky found covered with a milky aurora; faint, equally
diffused light, excepting that here and there the light, more condensed, has the appearance of
arches; the height of the well-defined aurora above the south is about 65°; this is only an ap-
4 proximation, as the light thins off.
11. The bay to WSW. is nearly obliterated. The southern portion of the light was at one time best
defined, but it is now like the rest,
19. Altitude of well-defined light from SSW., 65°. \
. 24. Altitude of well-defined light from SSW., 70°.
27. The clouds have moved more eastwards ; sky covered to north, from 70° above SSW., with milky
we
43. The altitude of well-defined aurora is now 85° above SSW. The northern semi-hemisphere is
covered with milky aurora as before. This milky appearance of the aurora is precisely of the
kind observed covering the sky, Feb. 1, 1845, &c. (See page 120.)
58. The auroral light has drawn nearer to the north.
59. Altitude of auroral segment above NNW., 57°.
8 0. Altitude of auroral sezment above NNW., 48°.
1. Altitude of auroral segment above NNW., 47°.
i 5. It again became cloudy, but the aurora crept nearer and nearer the N. horizon.
Ws; 8 915. Auroral arch toN, 10" 5™, Auroral arch to N.
aurora.
36. The well-defined aurora now only reaches to the zenith.
.
yy
ae
*
q OBSERVATIONS OF MAGNETIC DIP,
AND FOR THE
ABSOLUTE HORIZONTAL INTENSITY.
MAKERSTOUN OBSERVATORY,
1846.
Gs ND MET. oBs. 1846,
4s
346
Gottingen
Mean Time,
Middle of
Observation.
ad ho im
Jane e2e2aNao
Feb.
OBSERVATIONS OF MAGNETIC Dip, JANUARY 2—FrEBRUARY 14, 1846.
25
15
FACE OF CIRCLE E.
NEEDLE.
Num | pre | ap
ture. | ping.
2 39 B
2 B
2 45 A
2 A
2 47 B
2 45 B
2 29 A
2 35 A
2 32 B
2 35 B
2 44 A
2 39 A
2 44 A
2 38 B
2 (44 |B
2 43 | A
2 47 A
2 | 41 | B
2 | 42 | B
2 31 A
2 44 | A
2 44 B
2 48 B
Mark on Needle
E Ww.
72 37-0 | 71 19-5
72 44-0 | 71 17-5
70 56-0 | 72 18-5
70 58-0 | 72 17-5
72 22-0 | 71 17-5
72 23-0 | 71 19-5
71 10-0 | 72 24.0
71 5-0 | 72 23-0
72 36:0 | 71 18-0
72 30-5 | 71 18-5
71 3-0 | 71 58-0
71 17-5 | 72 85
71 70 | 72 7-0
72 14-0 | 71 20-0
72 10-0 | 71 23-0
GL V2:0)|ii2ens-0
fh et 5 iy 2)
72 24-5 | 71 22-5
72 19-5 | 71 26-0
71 20-0 | 72 18-5
71 10-0 | 72 13-0
72 18-0 | 71 16-5
72 16-5 | 71 16-5
FACE OF CIRCLE W.
Mark on Needle
E Vit
72 9-0 | 70 44-0
72 60 | 70 47-5
70 14:5 | 71 28-0
70 29-0 | 71 33-0
71 56-5 70 49-5
71 54:0 | 70 54-0
70 17:0 | 71 19-0
70 15-5 71 28-0
71 54:0 | 70 48-0
71 57-0 | 70 53-0
70 30-5 71 26-5
70 19-5 71 23-0
70 22-0 | 71 27-0
71 54-5 70 54:5
71 49-5 | 70 56-5
70 32-5 | 71 24-0
70 35-5 | 71 35-0
71 49-0 | 70 54-0
71 46-0 | 70 52-0
70 24-5 fl 17-5
70 32-5 71 22:5
71 45-0 | 70 51-5
71 45-5 70 49-0
* Unsatisfactory Observations, end B dipping.
4
Mean.
DEFLECTING BAR. DECLINOMETER. BIFILAR.
ae be Deflection
wissnce N. |Tempe-||Observed Reduced alin. corrected for || Reading | Ther- } pt mit
ie Pole. | rature. || Reading. te Tee Cor- | mome-
Unifilar. rected. ter.
d. h. m. Feet. © Se. Div. Se. Diy. Se. Div. C lb ” Se. nial °
aig 1.17 fi { E | 491] 7-75 | 8-64 || 481-15 540-1 | 45-1
2 0 w | 49-9 || 10-56 | 11-77 || 90.86 535-2 | 45-5 :
Bea °° wf | H| 496 | 10-12 | 11-28 | agi-72 |? °° 47° | 545.3 | 45.9 || 04515588
2 8 w | 49-5 || 10-06 | 11-22 | 90.94 5421 | 45.5
1 21 5 j E | 49-1 || 5-41 | 6-03 || 490.97 541-3 | 45.2
1 57 ; W | 50-2 |) 9-62 | 10-72 77-07 535-3 | 45.4
250 | °° wi|H| 496] 9:28 | 10:35 | 424-16 197 11-4 | S404 | 45.9 ip 0°4521956
2 12 w | 49-2 || 10-06 | 11-22 || 78.06 543-0 | 45-5
1 24 é { E | 49.2 | 4:36 | 4.86 || 379.92 538-8 | 45.2
1 54 w | 50-4 || 8-62 | 9-61 | 115.79 533-0 | 45.4
9 46 | &° wf | HE | 496] 824 | 9.18 | 383.41 1 30 25:3 || 540.1 | 45.8 || 9:4527909
2 15 w | 49-0 || 10-70 | 11-93 |) 118.49 543:8 | 45.6
1 27 - { E | 49.3 || 4-43 | 4.93 || 351.36 538:3 | 45.2
ai w | 50-6] 7-50 | 3-36 || 143.11 531-5 | 45.4
eis °° wi | | 493] 716 | 7.98 | 353-81 111 10-2 | 543.6 | 45.8 | 04530940
2 18 W | 48-8 9-71 10-82 145-91 544.8 45:6
1 30 4 E | 49-3 || 4-76 | 5-31 || 330-76 535-4 | 45.2
1 48 w | 50-7 || 696 | 7-76 || 163-51 531-2 | 45-4
239 | 7° wi|H| 491) 684 | 7.62 | 332.57 056-596 | 545.6 | 45.9 | 04531420
2 29 w | 48-8 || 10-06 | 11-22 || 167.59 545-5 | 45-6
1 34 " E | 49-4 | 3-16 | 3-53 || 313.02 534-6 | 45.3
1 44 WwW | 50-2 | 5-40 | 6-02 || 177.60 533-4 | 45.3
235 | 7° wif|E| 490 |) 7-46 | 8-32 |) 317-47 0 46 22-6 | 546.9 | 45.7 |( 0°4535303
2 25 w | 43-8 | 9-15 | 10-20 || 1892.00 546:3 | 45-7
1 37 " j E | 49-6 || 5-18 | 5-78 || 303-19 5315 | 45.3
1 41 w | 49-8 | 5-21 | 5-81 || 189.47 532.9 | 45.3
Bestel” wi | 489|) 8-96 | 999 | 307-15 038 15-4 | saat | 45.7 |[¢ 0-4538820
| 2 28 w | 48-8 | 9-79 | 10-91 |) 194.75 544.3 | 45.7
(Diff.)
Se. Div.
0 37 3-69 | 4-11 | 244.77 240-66
| 34 Mego \ 9-41 | 10-49 || 251-09 240-60
14 5 16 B { E | 55-7 || 13-28 | 14-80 || 492.81 554-2 | 53-7
| 4 42 w | 55-7 || 10-65 | 11-87 || 30.06 548-4 | 53-3
| 5 30 | °° ws | E | 59:0 13-91 | 15-0 || 493.01 |(? *4 998 || 551.6 | 53-7 | 04496891
| 6 0 Ww | 57-4 || 15-01 | 16-73 || 34-10 552-2 | 54-0
i 5 3 nf E | 54.7 || 11-78 | 13-13 || 434-18 552-9 | 53-6
; 4 46 WwW | 55-7 || 11-11 | 12-38 || 987-31 546-6 | 53-4
| eras | °° wf | Z| 586 | 14-04 | 15-66 || 436.47 |! 56 40-1 |) 550.1 | 53.8 || 04502303
! B55 W | 56-4 || 14-89 | 16-60 || 91-06 552-4 | 53-9
| Bee z j E | 54.6 | 11-90 | 13-26 || 394.86 550-5 | 53-5
4 50 W | 55-2 || 11-53 | 12-85 || 197.31 545-9 | 53-4
| pag | °° w {| E | 58-0 |] 14-19 | 15-82 || 397.07 130 121 550.6 | 53.8 | 94508358
5 51 w | 56-5 || 14-61 | 16-28 || 130.37 552-0 | 53.9
| Te - E | 54.7 || 11-97 | 13-34 || 366-51 548-8 | 53-4
4 53 WwW | 54-8 || 11-81 | 13-16 || 155-88 547-0 | 53-4
: as | °° wf| | 574] 14-41 | 16.06 | 368.91 110 540 | 551.7 | 53.8 |\f 04513829
5 47 W | 57-0 || 14-51 | 16-17 || 158-65 551-8 | 53-9
(Diff.
Se. Div.
2 50 3-50 | 3-90 || 252.74 248.84
6 7 Magny ayy: { 15-51 | 17-29 || 265-16 247-87
348 OBSERVATIONS OF VIBRATIONS FOR THE ABSOLUTE HorizONTAL INTENSITY, 1846.
Date.
Feb. 16
April 14
N. END OF MAGNET MOVING E.
No. Time
of of
Vib. Transit.
ee ees
(Os Ya 9 aS OW
6 48 39-1
10 49 41-2
16 51 14-5
20 52 16-7
26 53 50-0
30 54 52-0
36 56 25-0
40 57 27-3
46 59 0-6
500) 45.0) 227;
56 1 35-8
60 2 37-8
66 4 11-0
Mean observed time of one vibration = 15%*5270.
No. Time
of of
Vib. Transit.
Hike sare 9 EE
70|4 5 13-0
76 6 46-2
80 7 48:3
86 9 21-4
90 10 23-6
96 11 56-6
100 12 58-8
106 14 31-7
110 15 33-9
116 17 7-0
120 18 9-0
126 19 42-2
130 20 44-4
136 22 17-7
Time of Time
one of
Vib Obs.
s. h. m.
15-536 || 3 48
537 53
530 58
dae | 4 3
By! 8
530 13
531 18
530 23
526
526 || Mean
523
524
527
524
N. END OF MAGNET MOVING W.
Time of || No. Time No. Time
one of of of of
Vib Vib.| Transit. | Vib.| Transit
m. s. m. s.
15-533 1 | 47 21-5 71| 5 29-0
530 od |48 23-6 fou 6 SE
530 11 |49 57-1 81| 8 4-2
527 15 |50 59-2 | 85! 9 6-5
527 || 21 |52 32-4 | 91/10 39-6
523 || 25 |53 34-6 | 95|11 41-7
526 || 31/55 7-8 |101/13 15-0
524 |} 35 |56 9-9 | 105) 14 17-0
523 || 41 |57 43-2 {111/15 50-0
520 || 45 |58 45-3 | 115/16 52-1
519 || 51 O 18-6 |121|)18 25-2
320 || 55 1 20-6 |125)19 27-3
523 || 61 2 53-8 |131|\21 0-7
524 || 65 3 56-0 |135|22 2-7
of magnet, 48°:7. Rate of clock —1"7
Semi-are of vibration, commencing 8°, ending 2}°.
BIFILAR. |
Read-
in
Cor.
Sc. Div. |
550-2
552-3
551-6
555-4 |
557-0
557-7
552-5 |
549-2 |
553-2 |
Temperatu
0 |7 38 56-4
6 40 30-0
10 41 32-2
16 43 5-6
20 44 7-8
26 45 41-2
30 46 43-4
36 48 16-8
40 49 19-0
46 50 52:3
50 51 54:5
56 53 27:8
Mean observed time of one vibration = 15*:5576. Semi-are of vibration, commencing 7}°, ending 1}°.
7 54 30-0
56 3-4
57 5-4
58 38-8
59 40-9
8 1 14.2
2 16:3
3 49-6
4 51-7
6 24-9
7 27-1
9 0-4
15-560 1 139,12-8 | 61) 54 47-2
557 5 |40 15-1 | 65/55 49-5
553 || 11 |41 47-6 | 71/57 21-6
553 || 15 |42 51-0 | 75/58 25-0
552 || 21 |44 24-4 | 81/59 58-4
550 || 25 |45 26-7 | 85) 1 0-6
548 || 31 |47 0-1 | 91] 2 34-0
547 || 35 |48 2-5 | 95] 3 36-2
545 || 41 |49 35-7 | 101} 5 9-6
543 || 45 |50 38-0 | 105} 6 11-7
543 || 51 152 11-5 | 111] 7 45-1
543 || 56 |53 13-7 |115| 8 47.4
of magnet, 56°2.
15-573 || 7 43
57/33 48
567 53
567 58
567 1 8 3
565 9
565
562 || Mean
565
562
560
562
565-9
563-7
562-3
560-0
562-2 |
559-4
562-3
Temperat
OBSERVATIONS OF ABSOLUTE HoRIZONTAL INTENSITY, 1846—1847. 349
DEFLECTING Bar. UNIFILAR. BIFILAR.
Unifilar
Circle Reading|| Deflection. |; Reading | Ther-
Reduced. Cor- mome-
rected. ter.
Feet. Sc. Div. || Se. Div. Se. Div.
Declino-
Distance : Circle Seale meter.
Reading. | Reading.
Log.
4 3 sin, wu.
JUNE 23, 1
273-90 || 4-00
274-30 || 3-75
291-40) 3-15
280-10 || 5-52
285-80 || 8-00
290-20
272-70
287-90
275-50
277-40
272-40
283-40
282-60
277-50
271-60 . .
287-10 : : 9-1642171 |
281-80
279-60
281-10 : :
293.90 : ; 9-1637963
284-60
285-50
285-10
281-80
283-20
274-60
8
She hehse sheesh ser srsehsrens
9-1662338
9-1650658
sI~wJ
or
fo
9-1648515
x
2
So
9-1631516 |
Sa0ees ile Se pe Bee, oe
I a a a I
IANO
SOODS
CO COD
©
0g
im
o
Tm
2
=
PS)
=
JANUARY 2,
281-20 || 7-90
282-55 || 11-90
281-20 || 6-55
281.00 | 11-67
295-60 || 5-70
281-35 | 11-95
275-55 || 5-32
279-30 || 11-82
283-10|| 7-00
281-95 | 11-60
278-20 || 6-15
281-45 || 11-80
285-10|| 7-52
281-85 | 11-50
280-75 | 9-40
281-65 | 11-97
283-90 || 8-75
282-95 || 12-25
279-00 || 10-02
282-85 || 11-92
282-60 || 10-42
279-50 | 11-60
278-50 | 11-02
279-10 | 11-70
280-30 | 10-67
280-55 | 11-70
280-00 | 11-40
280-10 || 11-67
282-10 || 11-45
281-00 || 11-80
»
.
<4
9-1553068 }
9-1553784 |
ALAR AD DIA?
PT RO GE DONE DO TSS OK
mi BD oo O ~1 1
9-1554058
9-1552407 |
9-1556499
9-1556718
—y
9-1556812 |
Se gh an en er eh eh eran erenensansr
—
Anoroonna
350 OBSERVATIONS OF ABSOLUTE HORIZONTAL INTENSITY, 1847.
| DEFLECTING Bar. UNIFILAR. BIFILAR.
Gott. | Unifilar eae
Mean / Diataniee N. Tem- Circle Scale Ree Circle Reading|) Deflection. || Reading| Ther- | 1m
Time. | a Pole,| Pe?2- Reading. Reading. Reduced. Cor- mome-—
iv rected. ter.
Gy ie || Feet, Sil Za, oe, Se. Div. = oe eRe Se. Div. ° rt
{
May 31, 1847. |
3 53 Magnet away. 236 36 47 | 189-67|| 3-42 | 236 34 8 | | 4
414 B | E |75-5 || 266 16 23 , 192-60] 4.02 | 266 16 20 571-9 | 65:6
4 3 W |77-5 | 207 16 13 | 190-30] 3-07 | 207 14 28 573-0 | 65-3
4 26 98°) (| E | 74-8 | 266 16 23 | 174-30] 3.95 | 265 57 39 |(79 °! 4° | 569.9 | 65.8 |( 718088
4 10 w |76-7 | 207 16 13 | 169-02|| 3-32 || 206 52 29 573-8 | 65-5
4 35 zg §| E737 | 249 44 27 | 190-35 | 4.57 | 249 41 43 | 574.8 | 66-0
446 |, 1 W | 73-2 | 223 23 13 | 191-80] 4.77 | 293 21 51 ||, 4 4s | 579-5 | 66-2 ||, 15,19
440 | 11) | E |73-4 | 249 44 27 | 195-80| 4.29 || 249 47 33 578-3 | 66-1 |( >
4 50 W | 73-1 | 223 23 13 | 198-80] 5-70 | 223 98 25 || | 577-4 | 66-3
ae 5 J| E726 | 243 44 33 | 189.97| 6.45 | 243 40 12 | 587-5 | 66:7
4 55 || 135 Ww |72-7 | 229 37 3 | 189-52] 662] 92932 6 ||, , , | 580-3 | 66-4 ||| 5 1 coc
5 7135). | E |72-6 | 243 44 33 | 186-90] 6.00 | 243 37 21 | 585-9 | 66-8 ||(
4 58 Ww |72-8 | 229 37 3 | 186-65| 6.70 | 299 29 7 | | 584.4 | 66-5
5 13 5 J| E. | 726 | 240 31 50 | 210-37] 5-85 | 240 48 47 | | 576-9 | 669
5 23 ay W |726 | 232 23 13 | 189-52] 5-67 | 232 18 55 ||| , 4. « | 567-3 | 67-1 ll 5 ofl
5 17 | 16% j| E |726 | 240 31 50 | 211-70] 5-37 | 240 50 28 | 5 | 570.4 | 67.0
5 26 W | 72:7 || 232 23 13 | 190-65] 5-80 | 232 20 0 | 562-5 | 67-1
5 32 Magnet away. 236 36 50 | 191-32] 5-00 | 236 34 49
JUNE 15, 1847.
| >|
4 40 Magnet away. 236 26 3 | 194.05]) 1-17 | 236 29 25 |
4 53 5 E |62-6 | 265 19 30 | 191-87] 1-10 | 265 90 41 568-8 | 58-2 3
6 23 w |60-9 || 207 21 17 | 229.62] 4.45 | 207 51 44 | 580-7 | 582 ‘
4 57 |) _ (| B | 625 | 265 19 30 | 209-52/ 1.05 | 265 38 49 (7° 8 74 | 567.2 | 58-0 | 9 /28Nle
6 19 W |61-2 || 207 21 17 | 193-65|| 4-30 | 207 22 8 | | 580-8 | 58-2
5 9 | E | 62-3 | 249 27 23 | 188.32] 1-65 | 249 24 33 | | 566-8 | 58-2 ‘
6 5 w | 62.0 | 293 44 23 | 189.22) 4.45 || 293 40 26 | 574.9 | 58.2 a
5 6 | 11). f| B | 623 | 249 27 93 | 193-92/ 1.07 | 249 29 58 12 55 36 | 567.81] 592 | 7) ou
6 11 Ww 161-5 | 223 44 23 | 180.37] 4.20 | 993 31 42 | 575-0 | 582 |
5 15 | E | 62-2 | 243 30 7 | 188-83|| 1-77 || 243 27 43 567-0 | 582
5 56 W | 62-0 || 229 34 43 | 193.92|) 4.42 | 999 35 46 |||. - | 579.8 | 58-2 :
5 19 | 135) fj] E [62-2 | 243 30 7 | 190-57] 1.57 | 243 29 38 | 6 57 22 | e741 '| sao | 2 ofa
5 53 w | 62-0 | 229 34 43 | 190.00! 3-87 | 229 32 7 | 574-0 | 58-2 |
5 32 B | E |62-2 | 240 43 20 | 189-42|| 9.60 | 240 41 0 | | 567-0 | 58-2
5 40 W |62-1 | 232 16 47 | 196-70|| 3.07 | 232 91 35 | | 571-6 | 58-2
5 23 | 16% || E | 622 | 240 43 90 | 190-38] 2-50 | 240 42 3 | 410 22 | 565.7 | 58.9 | 9 1¢30e
5 45 w |62-0 | 232 16 47 | 195-17] 3-07 | 232 20 0 | | 575-7 | 58-2 | 4
6 30 Magnet away- 236 30 17 | 194-20}, 5-10 | 236 31 9 | s
| ..
:
SEPTEMBER 11, 1847. M4
7
3 30 Magnet away. 237 20 17 45:05 || 3-07 | 237 18 18 | | | &
3 37 | r { E /58-0 | 266 20 32| 45-30| 4.95 | 266 18 17 | 566-2 | 54-1 | 3
4 46 W /58-6 | 208 45 55 | 35-15] 8.85 | 208 20 6 568-6 | 54-1 ||. a
3 42/98) f E |57-9 | 266 20 32| 41.67/ 4.15 | 266 11 1 |? 52 10 | 563.2 | 541 [fo eee
4 42 —W (58.6 | 208 45 55 | 45-20] 8.65 | 208 40 30 569-0 | 54-1 | é
3 54 # { E [53-2 | 250 13 30) 46-90] 5-55 | 250 13 36 | | 564-5 | 54-1 || 2
4 31 | |W [58-6 | 294 27 35 | 44-93| 7-40 | 224 22 98 |I[_. . | 572-4 | 54-1 || 9 poe
350 11) (| E j581 | 250 13 30] 45-72| 5-15 | 250 11 29 [17 * >? | 563.6 | 541 | 9-173
4 35 W |58-6 | 294 27 35 | 48-40] 7-72 | 224 99 15 | 571-4 | 54-1 | é
aul af E 58-4 | 241 56 43) 45.07) 6.02 | 241 52 49 563-2 | 54-1 | 2
4 24 | W (58-6 || 232 49 47| 43-87] 7-10 | 232 42 44 571-0 | 54-1 Ill | -aamm
410 |'55)_§| B /584 | 241 56 43 | 45.00] 6.57 | 241 52 18 |f 4 *4 79 | 570.7 | 54.1 |(° 173889
4 21 W |58-7 | 932 49 47| 44-72] 7-10 | 232 44 26 570-6 | 54-1 ‘
| | | "
UNIFILAR. BIFILAR.
Unifilar [ata te
Circle Reading|} Deflection. || Reading| Ther- B-
Reduced. Cor- mome-
rected. ter.
Declino-
Scale meter.
Reading. Reading.
4 r3 sin. u.
Feet. iS 4 ie Sc. Div. |] Se. Div. Se. Div. Q
a
7
ack
SEPTEMBER 13—14, 1847.
56-41] 8-00
44-27 || 12-17
45-12|| 8-57
40-65 || 10-75
44-55) 8-85
46-52 || 11-07
40-37 || 8-55
45-37 || 11-05
45-85 || 9-92
45-96 ||. 10-55
44-76 || 9-87
45-67 || 10-62
44.74|| 7-15
23 46 15 : ‘9 ||? 9:0941498
10 44 40 : S|} 9-0945213 |
9-0948615
Sah Ssrsrsnsersuy
=
2
|
The observations, June 23, 1846 and Jan. 2, 1847, were made with a unifilar magnetometer, by Mr Jones of London, belonging to
ssor FORBES. The observations, May 31, June 15, Sept. 11, and Sept. 14, 1847, were made with a theodolite magnetometer, by
ONES, belonging to Sir THOMAS BRISBANE.
The following magnets were used in these observations :—
June 23, 1846. Suspended. Solid, 2°5 inch. Deflector. Solid, 3-65 inch. F.
Jan. 2, 1847. 3:0 inch. sonagcsss Idem. F.
May 31, 1847. Hollow (with mirror), 3-0 inch B. 6. Collimator, 3°65 inch. M.
June 15, 1847. Idem. Idem. M.
Sept. 11, 1847. Collimator, 3:0 inch. Pe crne Idem. M.
Sept. 14,1847. ...........e Idem. Collimator marked 4. B.
agnets used on the first two days belong to Professor FORBES’ instrument ; those used afterwards belong to Sir THomAs BRIs-
’S instrument, with the exception of the collimator deflector marked 4, used Sept. 14, 1847, which belongs to an instrument made
JONES for Professor BACHE of New York.
abstract of the observations for the times of vibrations of the different deflectors is given on the following page, and the final
ts will be found in the Addendum to the Introduction.
352 OBSERVATIONS OF VIBRATIONS FOR THE ABSOLUTE Horizontat INTENSITY, 1846-7
Gottingen Bar Ring No. of | Semiarcs | Temp. ee di
TG learn Win. -| on or | Vibra- : of ; of One
off. | tions. | Vibration.| Bar. Wabcation.
Gs) He , ’ ° =
1846.
June 24 4|| F On | 323 | 164043 65-4 | 12-14708
June 24 7 || F Off | 369 | 23— 4 67:5 | 4-96988
Dee. 31 2] F Off | 357 | 25— 3 48-0 5-01310
1847.
dena, ib 3} i 1 On | 319 | 283— 5 44-8 | 12-20431
May 31 10!) M Off | 351 | 35—10 71:3 5-03812
June 15 7 || M Off | 357 | 50—15 59-6 5-08227
Sept. 10 21 | M On 319 | 53—24 | 49-7 | 12-51917
Sept. 10 23 | M Off | 357 | 42—12 57-1 5-10007
Sept. 12 22 || B On 919 | 32—17 55-0 | 14-17608
Sept. 12 23 B Of ieSD fe2e—10 60-1 5-75353
BIFILAR. COEFFICIENTS FOR
Reading |Tempe-|| Torsion, | Tempera- a
Corrected. | rature. = 8. ture, = q. =e C
Se, Div. 2
562-4 59-3 | 0-002143 | 0-000300 | 0-00569
568-7 60-5 -001112 | -000300 | -00569
560-9 40-5 -000834 | -000300 | -00569
563-8 41-1 -001431 | -000300 | -00569
574-8 69-1 -000300 | -000100 | -00417
576-7 58-2 -000300 | -000100 | -00417
537°3 53-2 -002132 | -000100 | -00417
545-0 53-8 -000953 | -000100 | -00417
527-6 52-2 -001807 | -000090 | -00627
524-9 52-1 -000871 | -000090 | -00627
DIMENSIONS OF THE INERTIA RINGS.
For MAGNET F.
External Diameter, . 3°635 inch.
Internal Diameter, .. . 2°971 inch.
IMDICKNOSS) Fence a lieu 6 0:142 inch.
Wielghitsmeuenes en) ir 1074°77 grains.
See footnote to the previous page.
For MAGnet M.
3°515 inch.
2-912 inch.
0-187 inch.
125450 grains,
For MAGNET B.
3°604 inch.
2:932 inch.
0-172 inch.
1299-40 grains.
DAILY METEOROLOGICAL
OBSERVATIONS.
MAKERSTOUN OBSERVATORY,
1846.
G. AND Mer, ons. 1846. | au
354 DAILy METEOROLOGICAL OBSERVATIONS, JANUARY 0—2, 1846.
Time. || at 32°. Dry. | Wet. | Diff.
in. ef
0 13 || 28-998 || 40-7| 37-7
14 || 28-980 || 41-2} 37-5
15 || 29-015 || 40-2} 36-9
16 033 || 40-7| 37-1
17 077 || 40-8| 37-3
18 136 || 40-0} 36-9
19 052 || 36-0} 34-7
20 038 || 36-7] 35-3
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, 8S: = 16, W.=24
THERMOMETERS.
WIND.
Maximum
: movin
force in |pyom s
Dee
NOR ee eS RB RS we HK eS = dO
WNHrFONODE DOWDN Ww
1-8
10™,
motions of the three strata of clouds, Sc. (scud), C
Clouds,
Sc. : C.<s.: @1.,
from
pt. pt. pt. pt.
27 || 25:—:—
.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Sky
clouded.
Species of Clouds and Meteorological Remark
Masses of scud.
Td.
Id.
Id.
Id.
Id.
Seud and cirro-strati 2
Id. ; rain lately; sky to E.
Scud ; cirro-strati and cirri to E.; clouds tinge
Cumulo-strati on E. horizon ; cirro-strati;
Id. (0)
Tds* cirrous haze.
Id. 3 id.
Id. ; patches of scud; id.
Loose scud; cumulo-strati; cirro-strati.
Cumulo-strati on NE. horizon ; cumuli to SE.
Id.
Patches of scud and cumuli; a slight haze on ho
Haze round horizon.
Clear.
Td.
Id. ; haze on horizon.
es tay id.
igh. id.
Clear ; haze on horizon.
aes id.
Td. : idee streak of cloud to SW.
Id. ; Teg clouds on horizon.
ldo id. ; id.
Id. ; ada: id.
Masses of cirro-strati to E.
Cirro-strati and cirri to E.; cumulo-strati on E. h
Thin and barred cirri across the sky; id.
Cirro-strati and thin cirri.
Id.
Thin cirri; cumulo-strati on E. horizon.
Cumuli and cirri on E. horizon; cir.-cum.-str. to
Cirro-cumuli and cirri; cumulo-strati in haze to E
Td.
Cirro-cumulo-strati. [nearly at right angles
Cir.-str. lying in bands N by W. to S by E., with
Sky covered with cirrous haze.
Id.
Id.
Cirro-stratus and cirrous haze.
Id.
ids; a few stars dimly visih
Id.
Cirro-stratus and cirrous haze.
Id.; shower of hail, afterwards of rai 1
Id.; a few stars dimly visible. ;
Id.
Id.; rain?
lds id.
&
So
761
715
687
29-656
628
625
595
589
569
576
564
579
596
600
605
593
584
Se EE ee
;
ee
DAILY METEOROLOGICAL OBSERVATIONS, JANUARY 2—6, 1846. 355
THERMOMETERS. WIND. Clouds,
Riana Se.: C.-s.: Ci.,|| Sk : ;
Dry. | Wet. | Diff force in irom mT pose: al Species of Clouds and Meteorological Remarks.
1h, | 10™,
° ° C Ibs. lbs pt pt. pt. pt 0—10.
37-4| 36-1} 1-3|| 0-0} 0-0} 20 || —:20:—| 10-0 |] Thick cirro-stratus and seud,
39-2| 37-7| 1-5]) 0-2) 0-0} 31 || —: 20:—¥J| 10.0 Id.
39-5| 38-1} 1-4] 0-2} 0-2} 18 || —:20:—/] 10.0 Id.
40:5| 39-0| 1-5} 0-1} 0-1] 18 || —: 20:—|] 10-0 Id.
41-6| 40-0 1-6]| 0-2] 0-0| 16 ||—:19:—] 10.0 Ia.
43-4| 41-7] 1-7] 0-1| 0-2| 17 | —:19:—|| 10-0 Id.
44-7} 43-0] 1-7] 0-5| 0-8) 18 | 19:—:—|| 9.9 || Seud; cirro-cumulo-strati.
43-8) 42-4) 1-4]) 0-5] 0-0} 16 || 19:—:—|| 10-0 |] Id.: cirro-strati.
42:7| 41-3| 1-4] 0-3/ 0-1| 17 | 19:—:—|| 10.0
42.7| 41-4] 1-3] 0-2| 0-1] 16 10-0 || Scud ; cirro-strati.
44.7| 42.9] 1-8 || 0-5| 0-5] 17 10-0 lig 2 id.
43-2| 41-8] 1-4] 0-7| 0-2} 18 9-5 || Id.; id. >}
43-8| 42-4) 1-4|/ 1-3] 0-5; 18 || :19:— 9-5 || Cirro-cumulo-stratus ; lunar corona. }
43.2| 41-8} 1-4]] 0-8] 0-6] 17 7-5 Id. }-
43-9} 42-6) 1-3] 1-0| 0-5| 16 10-0 || Thick cirro-stratus and scud.
44-0] 42-9| 1-1]| 1-5| 0-3| 16 10-0 ld.
37-7| 36-3} 1:4|| 3-9} 0-1) 20 |} —:19:—|| 2.0 || Cirri and cirro-strati.
35-4] 33-6| 1-8] 1-2) 0-1} 19 9-5 || Seud and cirro-strati.
33-9| 32-4| 1-5] 0-1| 0-0] 18 3.0 Td.
35-3| 33-7| 1-6] 0-1} 0-1} 20 6-0 Id.
34-3| 32-9| 1-4]] 0-1] 0-0} 16 9.8 Td.
37-5| 35-3| 2-21 0-0] 0-0| 20 3.5 Td.
33-4} 32-3] 1-1] 0-1] 0-1] 20 3.5 Id.
30-7 | 30-1} 0-6 || 0-1] 0-0} 20 0-2 || Cirro-strati on SE. horizon.
29-4| 28-8} 0-6] 0-1} 0-0} 18 0:3 Td.
28-8 | +--+ se- || 0-0} 0-0) 17 1-0 2|| Seud on horizon ; thin cirri to N. ; very thin cirri to S. |
31-2) 30-4| 0-8]} 0-0] 0-0} 20 0-5 || Cum.-str. on E. hor. ; clouds on Cheviot; thin streaks
33:3] 32-1} 1-2] 0-1] 0-0] 20 0-8 || As before; more cirri forming to W. © [of cirri. ©
35-1} 32-7| 2-4]| 0-1) 0-0} 16 |} —:—:30]| 2-5 || Woolly cirri; cumulo-strati on E. horizon. ©
36-5| 35:0} 1-5 |] 0-0| 0-0 3.0 Td. ©
36-7| 35-2] 1-5 || 0-0] 0-0] 14 0:5 Id. Du) [a thin haze. ©
37-0| 35-3] 1-7]| 0-0) 0-0 1:0 || Cirro aud cirro-str.; Venus is visible, shining through
34-0} 33-1] 0-9] 0-0] 0-0) 4 4-0 || Cirro-strati and cirri radiating from NW.
34-4) 33-3) 1-1] 0-1] 0-0; 20 4-0 || Woolly cirro-strati and cirri.
36:0} 35-6) 0-4|| 0-0} 0-0} 26 9-8 || Cirro-strati and cirrous haze. )
34-:7| 33-7| 1-0] 0-1} 0-1| 20 10-0 || Cirro-strati and thick cirrous haze.
37-2| 35-7} 1-5]) 0-2] 0-1} 19 10-0 Td.
37-2| 35-6/ 1-6 || 0-2] 0-1] 16 10-0 || Thick cirrous-haze. )
37-0| 35-7| 1-3]| 0-1] 0-1} 20 10-0 lick § rain?”
36:9| 35-7| 1-2]| 0-8| 0-4} 17 10-0 || Scud and mass of cirro-strati; drops of rain. y
37-8| 36-4| 1-4) 0-7] 0-7| 17 10-0 Id.
39-1] 37-7| 1-4] 1-5) 1-4] 17 10-0 || Scud and mass of cirro-strati.
39-5| 38-2} 1-3] 1-7| 1-3] 17 10-0 Td.
41-1| 40-0} 1-1) 1-1] 0-3] 17 10.0 Id. ; rain’?
41-2} 40-0] 1-2 || 0-6} 0-1} 17 10-0 Td.
40-9| 39-9) 1-0]| 1-4] 0-6) 17 10-0 Td.
41-7} 40-4} 1-3 | 0-7| 0-5} 17 10-0 Id.
42-8| 41-4} 1-4] 0-4} 0-2} 18 10-0 Id.
45-6| 44:0] 1-6] 0-2} 0-2} 18 10-0 Id. ; clouds red to EK.
44-7) 43-6) 1-1 || 0-3) 0-2) 19 |) 24:—:—|| 10-0 |] Scud; dense homogeneous cirro-stratus.
46-2| 43-5| 2-7]|| 0-3/| 0-6} 21 10-0 || Cirro-cumulo-strati and cirro-str., radiating from SSE.
45-6 | 43-4| 2-2) 0-6| 0-2} 20 || —:28:—|| 10-0 || Ribbed cirro-strati; patches of scud ; sheets of cir.-str.
47-1| 44-6] 2-5|/ 1-1/ 0-2) 20 || 20:—.:—|| 10-0 |] Cirro-stratous scud ; mass of cirro-stratus.
47-0} 45-0} 2-0}| 0-8| 0-3] 19 10-0 Tdt3 id.
48:0| 46-7] 1-3 |) 0-4! 0-2] 18 || 21:—:—!! 10-0 Id. ; id.
° e direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, HK. = 8,S.=16, W.— 24. The
ons of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
356 DAILY METEOROLOGICAL OBSERVATIONS, JANUARY 6—8, 1846.
THERMOMETERS. WIND.
Gott. || Baro- |_—_———_—— eee Tes ris tahs sky
pew Prue A ree ae eae end moving gE ec Rel Species of Clouds and Meteorological Remarks.
1%, 10, as
de ti in. 2 ° ° Ibs. | Ibs. | pt. |] pt. pt. pt. || 0—10. 2
6 3 || 29-581 || 48-9} 47-3} 1-6]| 0-7] 0-3) 18 || 24:—:—J) 10-0 || Scud; mass of cirro-stratus. B.A
-E 589 || 48-9| 47-3] 1-6] 0-4} 0-1} 18 | 23:—:—] 10-0 Id. ; id. ;
5 600 || 49-7] 47-7} 2.0]] 0-3} 0-1] 18 || 22: —:—J| 10-0 Id.; cirro-strati, tinged red to W. .y
6 604 || 50-5| 48-2] 2-3 || 0-5) 1-1] 20 10-0 Id.; cirro-stratus. :
7 629 || 50-0] 48.0} 2-0]| 1-3} 0-8| 18 10-0 Ides id. ; a few drops of rain, t-
8 638 || 49-2) 47-7) 1-5) 0-9} 0-7) 18 10-0 Id. ; id. [fully coloured corons
9 639 || 49-1} 47-5| 1-6} 0-9) 0-9} 19 || 23:—:—]) 9-5 Id.; cir. and cir. haze; indistinct lunar halo; beau
10 639 || 48-4] 46-6] 1-8]} 1-1] 1-2] 20 ||} 23:—:—]| 9.2 Id: 5 id}: lunar corona. i
11 632 || 47-6| 45-7} 1-9] 1-3] 0-7} 20 9-5 || Woolly cirri and cirrous haze ; lunar corona. .
12 630 || 48-3 | 46-2} 2-1]| 2.2) 2-3} 20 9-5 || Seud; cirri and cirro-strati. ‘
13 || 29-654 || 48-1] 46-0] 2-1]] 3-0} 1-0] 20 9.7 || Scud ; cirri and cirro-strati. ,
14 655 || 47-7| 45-5| 2-2| 0-9| 0-9} 20 9.9 || Ia; id. 4
15 663 || 47-9| 45-2] 2-7]| 1-2] 1-3] 19 9-7 Id.; id. i
16 684 || 48-0| 44.9| 3-1|| 0-8] 0-4| 18 9.9 || Id.; id.
il¢ 694 || 47-5! 44.5| 3-0|| 1-2] 0-1] 20 10-0 ie We id. \
18 683 || 46-6] 44-1] 2-5] 0-7| 0-4] 18 10-0 Id. ; id.
19 709 || 47-6] 44-8} 2-8] 0-S| 0-7] 18 10-0 Tdi id.
20 707 || 46-8) 44.6} 2-2]| 0-5} 0-1} 17 9-9 Id. ; id.; the cirri and cir.-str. red to E
21 718 || 47-0| 44-7 | 2.3] 1-3] 0-9] 18 || 21:—:— 9-9 Id.; cirro-strati. ;
22, 688 || 47-0} 44-8] 2-2]) 0-9] 0-3] 20 || 21:—:— 9-8 lids: id. ; cirri.
23 729 || 47-4] 45.2} 2.2] 1-2] 1-6] 18 || 22:—:—|| 9.6 Id. 7065 id.
wa 733 || 48-1] 45-6] 2-5 || 2-4| 2-8) 19 | 22:20:—|| 9-5 Id. ; Adis id. ; drops of rain.
1 728 || 48-0| 45.9) 2.1] 4-0} 2-5} 18 ]}22:—:—]| 9.5 Id: 5 id..; woolly cirri.
2 734 || 48-5| 46-1] 2-4]) 4-5] 2-3] 19 | 22:—:— 9-8 Hdl ss id. ; id.
3 748 || 48-2) 45-8] 2.4]) 3-7] 2-6] 20 ||22:—: 24 9-0 Id.; thick woolly cirri.
4 785 || 48-7] 46-1} 2-6]) 1-9] 0-8] 20 | 21:—:—|| 9.8 Id. ; cirro-strati and cumulo-strati to E.
5 813 || 48-3] 46-0) 2-3] 1-1] 1-0] 20 | 21:—:—|| 949 Id.; cirro-strati.
6 828 || 48-4} 45.8] 2-6] IL-1] 1-7] 20 9-8 Id
7 842 || 48-6] 46-0] 2-6]| 1-8; 2-0} 19 || 22: —:— 9-8 Id
8 852 || 47-8) 45-6} 2-2] 1-3] 1-3] 20 || 22:—:—| 9.0 Id.; thin haze; diffuse lunar corona.
9 854 || 48-1] 45-9} 2-2) 2-2} 1-8] 19 9-7 Td.
10 863 || 47-0) 45-0] 2.0] 2:8] 1-4] 20 | 92: —:— 5-0 Id.; thin haze.
11 880 || 48-9| 45-4] 2-6]|) 1-8} 1-3} 20 || 22 :—:— 9.0 Id.; cirri and cir. haze ; lunar corona as before.
12 859 || 47-5| 45-2] 2-3]; 2-8) 3-0] 20 || 22:—:—]| 9.0 Id.; id., radiating from WSW.; id.
13 || 29-852 || 47-8] 45-2] 2-611 6-2| 3-7} 19 ||92:—:— 7.0 || Scud; cirri, radiating from WSW. ; the band of blue of corona get
14 858 || 48-2] 45.4| 2-8] 3-9] 45| 19 | 92:—:—|| 5.0 || Id.; cir. and cir.-str, }- fainter; the yellow isas bright as
15 862 || 48-3] 45-7 | 2-6]|) 6-2) 4-0} 18 ||. 6-0 || Id.; id.
16 877 || 48-1} 45-7] 2-4]/ 4-2) 2-8] 18 3-0 || Id.; cirro-strati and cirri.
7 882 || 47-5| 45-7} 1-8]| 4:5] 2-0} 18 9:0 || Id.; ids; cirrous haze.
18 926 || 47-7| 46-0} 1-7] 2-6] 1-5] 18 10-0 || Id.
19 947 || 47-9| 46-2} 1-7]| 1-6} 1-2} 20 9-9 Id.
20 964 || 48-0] 46-3) 1-7]) 1-6} 1-2) 20 || 9.5 || Id.; cir.-str. and cir. haze, tinged with red to SE.
21 || 29-993 || 48-0| 46-4] 1-6] 1-9] 1-7} 20 | 21:—:—|| 9-5 || Smoky scud; fine cirro-strati and cirri. .
22 || 30-021 || 48-6} 47-1] 1-5]] 2-2} 1-3) 18 |}22:—:—|| 9-5 Tides cirro-strati and cirrous haze.
23 044 || 49-4] 47-7] 1-7]| 1-7] 1-3) 19 | 21 :—:—|| 10-0 IGS id.
8 0 057 || 49-8] 48-0] 1-8]| 1-9| 0-4] 22 || 21:—:—|| 10-0 || Scud
1 067 || 50-3 | 48-4] 1-9) 0-8} 0-2 |20y.)| 21 : —:— 9-8 Id.
2 075 || 51-0) 49-0] 2-0] 0-3) 0-1) 20 | 22:—:—|| 9-5 Id.; cirro-strati.
3 084 || 50-8} 48.8] 2-0]| 0-1} 0-0] 20 | 22:—:— 9-5 id=; id.
4 109 || 50-6] 48-6| 2-0] 0-2} 0-1} 20 |) 22 : —:— 9:8 labs id.
5 132 || 49-9) 47-9} 2-0]| 0-6} 0-3) 20 | 22:—:—]| 8-0 IGbS id., tinged with red.
6 142 || 49-6] 47-3| 2.3] 0-7| 0-8] 20 || 9.9 || Id.
7 148 || 48-7] 46-8| 1-9]) 1-3] 0-8] 20 |22:—:— |) 8.5 || Id.; cirro-strati; small corona.
8 184 || 48-8] 46-7) 2-T || 0-5| 0-4} 19 8-5 || Cirro-cumulo-strati ; id.
9 187 || 48-8] 46-7} 2-1} 1-3] 0-8) 19 | —:22:— 9-5 Tat 5 id.
10 191 || 48-2} 46-2] 2-0]| 2-0] 1-0} 20 | —:24:— 5-0 |! Id. ; cirri.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, S. = 16, W. = 2450
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. a
Jan. 74105, Lunar corona; from the moon to about 3}° from it, is a uniform greenish-yellow colour, then a band of yellowish-red Hf
a degree broad, and last a band of blue about 13° broad; the extreme radius of the corona is about 6° or ies |
(PS SE SE SE A ES,
a
‘
Datty METEOROLOGICAL OBSERVATIONS, JANUARY 8—12, 1846. 357
THERMOMETERS. WIND. Cl
Baro- | ——_—_____—_ OD =
METER Maximum Sek Ci, bata a Species of Clouds and Meteorological Remarks.
at 32°. | Dry. | Wet. | Dist.|/ force in |Proml] "eS
1h, | 10™
a, in. Bae | ee ° Ibs. | Ibs. | pt. || pt. pt. pt. || 0—10.
811 || 30-215 || 48-4| 46-3] 2-1] 1-7] 1-0} 20 9:8 || Cirro-cumulo-strati ; coloured lunar corona. ap
is 240 | 46-6 | 45-1] 1-5]| 1-0} 0-3; 19 7-0 Id. y
239 |) 45-0] 43-7] 1-3] 0-6) 0-2} 20 2:0 || Woolly cirri lying E. and W. y
247 || 44-9| 43-4] 1-5} 0-3] O-L| 24 7:0 || Cirro-strati.
251 || 43-6 | 42-5} 1-1]| 0-7) 0-1) 19 4-0 Td. y
262 || 43-4] 42-3] 1-1]| 0-0] 0-0| 12 10-0 Id
267 || 45-4] 43-8} 1-6] 0-3) 0-0} 20 10-0 Id
256 || 45-4] 44-0] 1-4]] 1-5| 1-1] 20 10-0 Id.
964 || 45-0| 43-4] 1-6] 1-3] 1-4| 20 10-0 || Seud and cirro-strati.
971 || 44-2 | 42-2! 2-0]] 1-0| 1-2) 21 || 21:—:— J 9-9 Iek clouds red to E.
280 || 44-0] 42-3) 1-7] 2-2] 0-8] 21 || 21:—:—J|| 8-0 |) Seud; cirri and cirro-strati.
296 || 45-2| 43.2} 2-0]] 0-8) 0-7) 21 | 21:—:—|| 9-5 lide: id. 2)
296 || 46-2| 43-7| 2-5]| 1-6) 1-3] 20 || 21:—:— | 9.5 Id. ; id.
30-304 || 46-2) 43-8] 2-4]) 1-8] 0-4) 22 ||} 20:—-:—|| 9-0 |) Seud; cirri and cirro-strati.
985 || 46-3] 44.2) 2-1|| 0-8) 0-8) 22 | 20:—:—] 9-9 Id.; dense mass of cirro-stratus.
260 || 46.2} 43-9| 2-3} 1-3} 1-4| 20 ||—-:20:—|| 9-9 || Cirro-stratous scud and cirro-stratus.
253 || 45-7| 43-5] 2-2]) 1-1| 0-2) 21 || —:20:—]] 10-0 Td.
951 || 45-0) 43-3} 1-7]) 1-2) 0-5] 21 || —:20:—¥|| 10-0 Id.
243 || 44-3 | 42-6] 1-7], 1-5] 0-2} 20 10-0 || Dense mass of cirro-stratus.
225 || 44-0} 41-9| 2-1] 1-0} 0-7| 18 10-0 Td.
229 || 43-9| 41-7| 2-2] 1-5) 0-4] 18 10-0 Id.
213 || 44-0] 41-4] 2-6] 2-4| 1-6] 20 10-0 || Seud and cirro-strati.
202 || 43-7| 40-9] 2-8] 2-4] 0-8| 21 10-0 Id.
187 || 43-7} 41-0| 2-7}) 1-0] 1-6] 20 10-0 Td.
155 || 43-5| 41-3) 2-2|) 1-6] 1-3] 18 10-0 Id.
149 || 44-0] 41-6} 2-4}) 2-3) 0-6) 18 10-0 Id.
134 || 44.3] 41-5] 2-8] 2-6] 1-4) 19 10-0 Id.
109 || 44.4} 41-9} 2-5] 2.3] 1-9] 20 9-8 Id. ; drops of rain.
118 || 44-6| 42-0} 2-6] 2-3] 0-3} 21 10-0 Id.
093 || 44-8) 41-8] 3-0]| 1-6} 1-5] 20 10-0 Id.
097 || 45-1) 41-7| 3-4] 1-3} 1-0] 20 10-0 Id.
079 || 44-9 | 42-1] 2-8] 1-6] 1-4] 18 10:0 Id.
060 || 45-0 | 42-4] 2-6] 1-3} 0-3] 18 9-5 Id.
031 || 45-1] 42-7) 2-4)|| 1-5] 1-5} 20 10-0 Id.
032 || 45-0 | 42-7| 2-3] 1-2] 0-7} 20 || 23:—:—]] 10-0 fst,
050 || 45-4] 43.2} 2.2] 1-3| 0-7] 20 || 22:—:—|| 9.8 || Scud; cirro-strati and cirri. :
045 || 45-7| 43-4) 2-3)) 1-2] 1-2] 20 || 25:—:22]| 8.5 Id.; woolly cirri; cirro-strati. (s)
30-042 || 46-7 | 44.4) 2-3] 2-7| 1-5| 22 || 24:—:20}] 5-5 || Scud and cirro-stratous scud ; woolly cirri. 8
031 || 47-8} 45-3} 2-5} 1-3] 1-7| 20 || 20: 24:—J- 8-0 || Loose seud; loose cirro-strati; drops of rain.
013 || 48-2) 45-8| 2-4|| 2-6} 1-3) 20 || 20:24: — 8:5 lGGe id. ; woolly cirri. ‘s)
009 || 47-8 | 45-3) 2-5]| 1-4] 1-1] 21 |} 21:20:—|| 9.5 at ads 5 id,
018 || 47-6) 45-4} 2-2} 1-3) 0-5] 20 | 21:24:— || 9-9 Id. ; id.
010 || 47-0 | 45-4} 1-6]| 1-2] 0-3} 20 || —:24:—|| 10-0 || Cirro-stratous scud.
O11 || 47-3} 45-6]|.1-7]| 0-5] 0-3) 20 9-5 || Cirro-cumulo-strati ; cirro-strati.
007 || 47-4| 45-6) 1-8] 0-7) 0-1) 18 10-0 || Scud and cirro-strati.
017 || 47-6| 46-0} 1-6] 0-1] 0-0] 18 9-8 Td.
O11 || 48-0) 45-8} 2-2] 0-3) 0-3} 21 | 24:25:—|| 7-0 || Seud; cirro-cumulo-strati.
026 || 47-2| 45-6] 1-6] 0-5] 0-0} 18 9:0 || Id.; id.
030 || 47-3| 45-0} 2-3} 0-2| 0-2) 20 9-0 || Cirro-cumulo-strati and cirrous haze. }
051 || 46-5} 44-7) 1-8} 0-2] 0-1} 20 || 24:25:—|| 9-0 || Scud ; cirro-cumulo-strati. y
{| 30-057 || 38-7] 38-0| 0-7] 0-2} 0-0 20:—:—|| 3-0 || Loose scud; patches of cirri.
9 || 29-765 || 41-0} 39-7) 1-3] 0-5] 0-1] 16 10-0 || Scud and cirro-strati.
752 || 40-5 | 39-0) 1-5 || 0-2] 0-2] 17 10-0 Id.
742 || 39-9| 38-5] 1-4]| 0-2] 0-1] 16 || 21:—:—/|| 10-0 Ich 3 hazy.
722 || 40-1| 38-2| 1-9|) 0-2) 0-1] 20 ||22:—:—J| 10-0 || Scud; cirro-strati and cirrous haze ; traces of a halo.
direction of the wind is indicated by the number of the point of the compass, reckoning N,= 0, EH. = 8,8. = 16, W.= 24. The
of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
9264, Observations made at 64 15™.
MAG. AND MET. oBs., 1846. -
358 DaAILy METEOROLOGICAL OBSERVATIONS, JANUARY 12—18, 1846.
GIB i'm in. y
12 2 || 29-673 || 41-8
4 628 || 36-3
6 576 || 34-0
8 536 || 30-0
10 507 || 28-8
575 || 33-2
6 560 || 31-6
8 564 |) 30-4
10 573 || 31-0
8 545 || 42-9
10 550 || 42-6
234\| 29-515 || 41-4
18 18 || 29-197 || 39-1
20 139 | 39-2
THERMOMETERS.
WIND.
Maximum
force in
1h, | 10™.
From
pt. pt.
20 || 20
—
Oo
bo
NOK OKO OKHRNAEK
411:
16 |} 11:
16:
2's
LD:
Clouds,
from
pt.
54 Oe
:18
7) lee
220)
Se.: C.-s. :Ci.,
moving
pt.
5 AAO)
Sky
clouded.
| Scud and cirro-stratus.
Species of Clouds and Meteorological Remarks,
Scud and cirro-strati.
Woolly and mottled cir. ; cir.-str. and cir. haze on
Cirri, cirro-strati, and cirrous haze.
Loose seud ; cirro-strati. hal
Woolly cir., cir.-str., and cir. haze ; portion of a1
Cirro-strati and cirro-cumulo-strati ; cirrous haze.
Scud, cirro-strati, and cirrous haze.
Woolly cirri ; cirro-strati ; slight fog. [miles ¢
Fog ; cir.-str. ; cir. ; cirrous haze ; objects invisible
Patches of seud, nearly as at 0°; drops of rain.
Homogeneous mass ; rain"?
Scotch mist ; cir, ste. ; Venus visible through the ek
Cirri and cirro-strati.
Masses of scud to E. ; cirro-strati and cirrous h az
Cirro-cumulo-strati and cirro-strati.
Nearly homogeneous ; dense fog.
Loose smoky He. cirro-cumulo-strati ; slight fog.
Cirro-cumulo- Se cirro-strati ; haze.
Ibe des id.
Loose scud ; mass of dino seat!
Id.
Til cirrous haze,
Seud ; cirro-cumulo-strati ; cirrous haze.
Seud and cirro-strati round horizon.
Seud ; varieties of cirro-strati ; sheets of cirri.
Id.: dense cirro-strati; shower since last observatic
Id. ; id.
Cirro-stratous scud ; wavy cirro-strati.
Id.
Cirro-strati on horizon ; clear.
Cirri.
Cirro-cumulo-strati.
Dense fog ; objects invisible at 200 yards.
id.; apparently blue sky above
Fog ; objects invisible at 300 yards.
Nish © id.
Dense fog ; objects invisible at 200 yards.
dis id.
Fog clearing off a little ; one or two bright stars ¥
Fog.
Scud and cirro-cumulo-strati ; slight fog.
Fog ; objects invisible at 200 yards.
Id. ; objects invisible at 400 yards.
Send ; cirro-strati.
lice id.
Id. ; id. ; cirro-cumulo-strati.
Dense homogeneous mass of clouds.
Id.
Id.
Thick scud.
Scud and cirro-strati.
Id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, 8.= 16, W.= 4.
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
DaILy METEOROLOGICAL OBSERVATIONS, JANUARY 18—24, 1846. 359
THERMOMETERS. WIND. Clouds
Bano- Se.:C.-8.:CL,|| Sk
ea Dry. | Wet. | Dif omen ant Hoste oboe Species of Clouds and Meteorological Remarks.
1b, ,10™,
le in. 2 ° o lbs. | Ibs. pt. pt. pt. —pt 0—10.
99.077 || 42-5} 40-1} 2-4]! 1-3) 1-5) 10 || 12:—-:—J| 10-0 || Thick scud.
28-999 || 42-9] 41-0] 1-9|| 2-6) 0-8; 8 || 10:—:—]| 10-0 Id.; dense homogeneous cirro-strati.
901 || 42-9] 41-4] 1-5] 1-5) 0-5} 8 9:—:—|| 10-0 lil, ¢ id. ; rain?
819 || 43-4} 41-4] 2-0] 1-2) 1-3} 8 || 11:—:—/]| 10-0 || Scud; dense mass of cirro-strati.
759 || 43-6] 42-0] 1-6] 0-9} 0-1; 10 10-0 i@l, ¢ id. ; rain?
682 || 43-4} 42-5] 0-9] 0-3} 0-2} 6 10-0 || Dark.
625 || 43-4} 42-9] 0-5] 0-3} 0-3] 2 10-0 Id.
1} 28-504 || 45-2| 44.9] 0-3] 0-2| 0-0 10-0 || Fog, objects invisible at + of a mile.
524 || 44-7| 44.5] 0-2| 0-0| 0-0) 8 10-0 Id., id. 200 yards.
570 || 44-8} 43-5] 1-3] 0-4) 0-4] 19 || 21:—:—J]) 10-0 || Scud; homogeneous cirro-stratus ; rain”?
605 || 45-0) 43-5) 1-5|| 1-7) 1-2} 20 || 23:—:—J) 10-0 || Thick scud; drops of rain.
679 || 43-7) 41-9}| 1:8] 1-4] 0-6] 21 || 23:—:—J]| 10-0 Tigh’ rain!
754 || 43-2) 41-5} 1-7] 2-8] 1-5] 22 | 24:—:—]| 10-0 Id. ; id
810 || 43-6} 41-9| 1-7] 1-7] 1-4] 21 10:0 Ike rain?”
853 || 44-9) 41-9] 3-0] 2-5} 2-0) 21 10-0 Id.
98-894 || 44-9} 41-4] 3-5] 2-6] 2-2) 19 10-0 Id.
| | 29-015 || 38-6] 37-2| 1-4] 2.5] 0-5| 20 0-2 || Cirro-strati on S. horizon. y
027 || 37-5| 36-4] 1-1] 0-6] 0-2] 21 0-5 || Scud and cirro-strati on S. and E. horizon. »)
f}} 029 || 38-3| 36-7] 1-6] 0-3) 0-1/} 19 0-8 || Scud and masses of cirro-strati on horizon. oO}
/ | 031 || 43-0; 41-3] 1-7] 0-1] 0-0) 16 |} —:22:22]| 7-0 || Woolly cirro-strati and cirri; seud on horizon. ‘S)
} 29-019 || 45-8) 43-6) 2-2] 0-0 0-0/ 15 |} —: 21 :— 8-5 || Cirro-stratous scud ; cirro-strati and cirri.
| 28-987 || 43-7] 41-8} 1-9} 0-2) 0-1) 14 || —: 21:— 9-5 || Dense mass of cirro-stratus.
|i} 946 || 39-5) 38-4] 1-1] 0-1) 0-0} 6 7-0 || Cir.-str. and cir.-cum.-str.,in bands lying from W. to E. |
| 906 || 40-0] 38-7| 1-3] 0-0} 0-0 10-0 || Cirro-strati and cirrous haze.
| 829 || 41-9] 40-9} 1-0] 0-1] 0-0) 12 10-0 Id.
J 28-498 || 42-6) 42-4] 0-2) 0-2) 0-2/ 3 10-0 || Scud; rain!
‘ 502 || 42-9} 42-7) 0-2] 0-2] 0-2) 3 10-0 Id.; rain!
‘ 513 || 43-6| 43-2] 0-4]) 0-2] 0-1] 4 10-0 || Clouds homogeneous ; drizzling rain”?
) 568 || 44-4) 44-0] 0-4] 0-2} 0-0] 1 10-0 Id. ; id.
| | 646 || 44-2} 43.7} 0-5 |) 0-2) 0-2} 30 || 30:—:—|] 10-0 || Scud; dense cirro-stratus ; rain”?
; 721 || 43-8} 43-3] 0-5] 0-2] 0-1] 22 || 29:—:—|| 10-0 ligt, 3 id. ; rain”?
| 772 || 43:0] 42-5] 0-5 | 0-1] 0-0) 18 10-0 || Scud and dense cirro-stratus.
802 || 43-2) 42-6] 0-6] 0-0} 0-0} 22 10-0 Id. [clear about 95. |
| 802 || 44-0) 43-5} 0-5} 0-0} 0-0; 20 10-0 Id.; drizzling rain’; the sky was partially |
| | 28-838 || 36-0 | 35-5] 0-5 || 0-1| 0-0 1-0 || Scud and cirro-strati on horizon. D|
? || 845 || 38-3| 37-7) 0-6] 0-1| 0-0} 30 | 30:30:—]) 9-5 || Scud and cirro-cumulo-strati. Da
+ 869 || 39-5] 39-0] 0-5|| 0-0] 0-0} 20 || 22:22:—|| 9.8 || Seud and cirro-strati; rain”?
868 || 47-1} 46-4) 0-7] 0-0} 0-0 20:20:—|| 9-8 Id.
j 857 || 47-5] 46-2} 1-3 0-2) 0-1} 20 || 21:—:— 7-0 || Seud; cirro-strati; woolly cirri.
860 || 44-7| 43-5] 1-2|| 0-1] 0-0} 24 | 24: —:—| 9.0 Id. ; id.
879 || 43-6| 43-0} 0-6] 0-0! 0-0 10-0 || Cirro-stratous scud.
900 || 41-7| 41-5} 0-2) 0-0} 0-0 10-0 || Scud and cir.-str. ; a few stars indistinctly visible.
28-911 || 41-6| 41-4] 0-2] 0-0] 0-0} 22 9-7 || Scud and cirro-strati ; rain?
29-051 || 39-0} 38-6} 0-4 || 0-1] 0-0 10-0 || Scud.
/ 098 || 38-8} 38-4] 0-4|| 0-1] 0-0) 20 ||} —:29:—]} 9.8 || Cirro-cumulo-strati.
157 || 38-0| 37-6| 0-4] 0-0| 0-0 —:29:—|| 4.0 Tae patches of cirri.
204 || 42-4| 41-6] 0-8] 0-0| 0-0 —:98:—|| 9.7 Id.
223 || 45-7| 43-7] 2-0] 0-0! 0-0) 22 || —:24:— 3.5 || Cirro-strati and cirro-cumulo-strati. 0)
237 || 43-3) 41-4] 1-9]| 0-3] 0-2] 19 1-0 Id. on horizon. oO
? 274 || 39-8} 39-0} 0-8|| 0-1] 0-0} 26 3-0 || Scud.
A: 264 || 39-4| 38-5] 0-9] 0-0] 0-0| 24 9-7 || Id.
7 220 || 38-7| 38-3] 0-4|| 0-0] 0-0} O 4-0 || Cirro-strati and haze.
02) 28-815 || 50-2| 48-0] 2.2] 3-3/ 0-4] 18 || 21:—:—|] ----- Scud and masses of watery cirro-strati.
_ jhe direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.=8,8.=16,W.= 24. The
Mions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
360
Gott. Baro-
Mean METER
Time. || at 32°.
d. h. in.
25 18 || 28-758
20 756
22 757
26 0 753
2 743
4 754
6 761
8 HUES
10 789
18 || 28-855
20 888
22 || 28-942
127 0 || 29-009
4 2 054
4 088
6 137
8 181
10 192
18 || 29-055
20 || 28-997
22 967
Psy (0) 966
2 965
4 974
6 971
8 || 28-987
10 || 29-007
18 || 28-950
20 || 28-970
22 || 29-003
29 O 009
2 057
4 101
6 142
8 198
10 272
18 || 29-463
20 467
22 430
30 O 371
2 315
4 301
6 334
8 368
10 406
18 || 29-406
20 401
22 362
31 0 317
2 283
4 229
6 197
8 156
10 134
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, S.= 16, W. = 2
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Dairy METEOROLOGICAL OBSERVATIONS, JANUARY 25—31, 1846.
Dry.
47-6
47-2
48-1
50:0
50:7
50-3
46-4
46-6
46-4
50-3
50-3
THERMOMETERS.
WIND.
Wet.
46-5
45:9
46-5
47-7
49.2
48-2
44-9
45-5
45:3
43:3
44-3
46-0
47-4
°
eel eet 2 RE eel ell cell oe NI WO Oe
WR W KB WATRPOWRDON BERKS OP AWwWoawe
jh,
Maximum
force in
HOm.
=
ing
n
ee seooseoosce
bdo CO Be Be Oe KE eK KH OO:
0-7
From
Clouds,
Sc,: C.-s.: Ci,
moving
from
pt. pt.
20:—:
23:—:
pt.
a irs:
= 19
Sky
clouded.
Species of Clouds and Meteorological Remar!
Scud and cirro-strati.
Id.
Seud; thin cirri and haze.
Seud and cirro-strati; slight shower.
Td. ; id.
Seud ; cirro-strati and cirri seen above.
Id.
Scud and cirro-stratus.
Td.
Seud; hazy.
Id.; cirro-strati.
Td. id.
Id. ; id.
ide id. ; drops of rain.
Id.; woolly cirri; cirro-strati.
Id.
Sheets of cirro-strati and scud.
Cirro-strati and haze.
Seud ; dark.
Id.; dense mass of cirro-stratus ; rain!
Id.; continuous rain?—3
Id.; woolly cirri, cirrous haze, and cirro-strati
>
’
Id.; cirro-strati and cirri.
Id.; thick woolly cirri; cirro-strati.
Seud and cirro-strati.
Td.
Id.
Scud and cirro-strati; stars dim.
Scud.
Scud; dense mass of cirro-stratus ; drizzling rai
Id.; cirro-strati; cirri.
Id.; woolly cirri; cirro-strati.
Id.; mass of cirro-strati.
Id.
Id.; cirro-strati.
dis id.
Scud. [especially
Seud and cir.-str., cloud tinged red over the whol
Dense cirro-stratus, nearly homogeneous.
Seud ; cirro-strati.
Td; id.
Scud ; mass of cirro-strati and cirrous haze.
Patches of scud, cirro-strati, and cirrous haze.
Cirro-strati and cirrous haze,
Id. .
Seud and cirro-strati; rain”?
Id.
Scud ; dense cirro-stratus.
lice id.
Rds: Tens drops of rain.
Loose scud moving rapidly; woolly cirri; ¢
Seud ; rain occasionally since last observation
TGS in -
Id.; rain!
.
DAILy METEOROLOGICAL OBSERVATIONS, JANUARY 31—F EBRUARY 7, 1846. _ 361
THERMOMETERS.
WIND.
Dry. | Wet. | Diff.
44:8
LY USN reel alas
ANRMOSOWH SAGA
8
)
‘
;
S00!
NOK RAL aAhH Hows
RON Sage CORON ROOST ea NOE ROBE ROUNS Beara So ounce
wwIwaowsAS
Maximum
force in |Ryom
pt.
23
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Thick scud.
Cirro-strati.
Id. and woolly cirri.
Cirri and cir.-str., generally lying N by E. to S by W.©
Patches of cumuli and sheets of cirro-strati. ©
Cir.-str. and cir.-cum.-str.; masses of cum. on hor. ©
Scud ; mass of cirro-strati.
Dense cirro-stratus.
Id.
Cirro-strati and cirro-cumulo-strati.
Seud and cirro-strati; dark.
Scud ; cirro-stratus.
Dense homogeneous mass of clouds.
mass of cirro-stratus.
Scud; rain”; stormy.
Scud ; rain!
Id. and cumuli on S. horizon; snow on the ground.
Loose seud.
Woolly cirri and cirro-strati.
Seud and loose cumuli ; cirri and cirrous haze. 0)
Scud ; cirro-strati and cirrous haze.
lich; 6 id. }
Homogeneous cirro-stratus and cirrous haze. }
Patches of scud ; cir. haze ; faint lunar halo and cor. }-
Scud and cirro-strati.
Cirro-stratous scud ; loose scud ; cir.-str. ; drops of rain.
Seud ; cirro-strati.
Id.; cirri.
Scud and loose cumuli; linear cirri.
Cirro-stratous scud ; cumuli and linear cirri.
Cirro-strati on horizon ; scud and cumuli to W.
Woolly and mottled cirri and cirro-strati.
Thin cir.-str. and woolly cirri; portion of a lunar halo
Clouds on S. horizon. [and corona. }-
Loose scud ; cirri and cirro-strati; hazy.
Cirro-stratus and cirrous haze ; patches of scud.
Seud ; thick cirro-strati and cirro-cumulo-strati.
Id.; dense cirro-stratus and haze; rain”?
Loose scud ; ides rain?
Seud ; cirro-strati.
Seud and loose cumuli; cirro-strati; drops of rain.
Id. ; id. ; id.
Cloud on horizon. [showers ; wind in gusts.
Scud; cum. and cir.-str. on S. and E. hor. ; frequent |
Loose scud ; rain'~3; very stormy.
Seud ; the sky has been partially clear occasionally since
Scud ; woolly cirri. © [23"; drops of rain.
Cirro-stratous seud ; cirro-strati and cirrous haze. ©
Nearly homogeneous; cir.-str. and scud ; drops of rain.
Seud ; slight showers occasionally.
direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, K.= 8,8. = 16, W.= 24. The
Se. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
FB). 245%, Dense cirro-stratus moved up from about NW.., in large regular waves, lying ENE. to WSW.
l0tas of the three strata of clouds,
AG. AND MET. oBs. 1846.
362 Dairy METEOROLOGICAL OBSERVATIONS, FEBRUARY 7—14, 1846.
THERMOMETERS. || WIND. ee
Gott. BaRo- leper er aaa aT (a ee (Per ae Se . aes a Sky
Mean METER aximum ee Bey ae Species of Clouds and Meteorological Remar]
Time. || at 32°. Dry. | Wet. | Diff. force in |Pyom brea clouded. P gr :
rom
15, )10™.
(1 ns in. e 2 © lbs. | Ibs. pt. rae pt. pt. 0—10.
7 10 || 29-588 || 36:0! 34-0} 2-0]| 1-1} 0-0; 20 2-5 || Cirro-strati.
23 || 29-719 || 36-0] 32-0} 4-0]) 2-2] 1-2] 28 0-5 || A few cirro-strati on horizon.
8 18 | 30-022 || 35-6| 34-0) 1-6) 3-1) 0-6 31 9-9 || Seud.
: 2-5 || Id.; cumuli on horizon; nimbi on E. horizon,
20 039 | 34-5] 32-6) 1-9|| 0-7} 1-0} 31 2:—:—
22 076 | 36-0} 33-0} 3-0 || 2-0} 1-0} 30 || —: 0:—J 9-5 || Cirro-stratous scud ; shower of snow to E, ?
9 0 105. | 37-0} 33-8} 3-21) 2-3] 1-3] 31 || —: 0:—|| 10-0 id= heavy shower of snow about 25
2 110 || 33-6] 32-7| 0-9 || 1-7] 0-7| O 8-0 || Snowing heavily since 1", just ceasing, clouds
4 121 || 35-0} 33-5] 1-5|| 2-5] 1-6} 1 10-0 |} Scud; hail. (off {
6 132 || 33-2| 32-6] 0-6] 2-6| 0-4} 31 3:0 || Seud, nimbi,cum.,and cir.-str.; snowing heavily;
8 163 || 31-8] 31-0} 0-8]) 1-0} 0-1] 30 2 2-0 || Scud and loose cumuli; snow ‘about vice
10 186 || 29-3) 28-6} 0-7|| 0-1} 0-0} 4 2-0 Id.
18 || 30-238 || 26-3] 26-3] --- || 0-0} 0-0} 24 4:0 || Seud and cir.-cum.-strati; occasionally a few fla
20 254 || 25-8} 25-6} 0-2|| 0-0) 0-0) 24 10-0 || Homogeneous ; slight snow.
22 268 || 29-2| 29.4] --- || 0-0} 0-0 9-8 Id.; fog to N., objects invisible at 3 a-m
10 0 268 || 35-0] 32-7] 2-3}! 0-0| 0-0} 22 9-8 || Cir.-str. and cir.; foggy. [tance ; snow 43 in
2 235 || 35-3 | 34-0] 1-3] 0-0} 0-0 9-8 || Woolly cirri, cirro-strati, and cirrous haze.
4 204 || 34-0} 32-7} 1-3]] 0-1] 0-0 10-0 || Cirro-strati and cirrous haze.
6 172 || 30-4] 29-2} 1-2]| 0-1} 0-0} 18 10-0 Id.
8 122 || 33-0| 31-3} 1-7|| 0-1] 0-1] 20 10-0 || Homogeneous mass.
10 090 || 33-7} 31-8| 1-9|| 0-5} 0-2] 24 7-0 || Cirro-strati and cirrous haze ; lunar corona.
18 || 29-893 || 37-5] 35-6] 1-9] 1-5} 0-2] 24 2-5 || Seud ; cirro-strati.
20 876 || 37-2| 35-7] 1-5|] 0-1] 0-0} 20° || 30: —:— J] 5-0 | Id.; id. [and cum.-strati on E,
22 887 || 40-0} 37-4] 2-6|| 0-3 0-2] 28 9-0 || Dense mass of cirro-str. ; streaks of cirri to E.; ¢
11 0 896 || 41-5| 38-7} 2-8} 0.4) 0-3) 25 | —:—:29|| 8-5 |) Woolly cirri; cir.-str. and cir. haze ; a few pai
2 896 | 43-8} 40-0} 3-8)| 0-5| 0-1] 25 9-5 || Thick mass of cirro-stratus. @ [scud onk
4 888 | 42-1] 38-7] 3-4|| 0-1 | 0-0} 24 | —:—: 0|| 10-0 || Woolly cirri and cirro-strati. '
6 886 || 37-9} 35-6} 2-3]! 0-0| 0-0) 26 ||—: 0:— | 6-0 || Cirro-cumulo-strati; cirro-strati and cirrous haze.
8 882 || 40:0} 37-3} 2-7]| 0.1] 0-1] 21 10-0 ide’; id.
10 884 || 39-8] 38-1] 1-7|| 0.0] 0-0] 20 | 10-0 || Thick mass of cirro-stratus.
18 || 29-901 || 35-2} 34-6} 0-6]| 0-1} 0-0] 24 2-0 || Cirro-strati and cirri.
20 896 || 30-3} 30-0} 0-3]| 0-0) 0-0) 16 3-0 || Haze and cirro-strati.
22 914 || 36-8} 35-8] 1-0|| 0-1 | 0-1} 22 || —: 0:—)| 9-8 || Cir.-cum.-str. and thick woolly cir. ; cir.-str. ;
12 0 926 || 41-3} 39-0) 2-3) 0-2] 0-2] 21 2-0 || Cirro-strati, woolly cirri, and cirrous haze. '
2 930 || 45-5} 42-0] 3-5]| 0.2] 0-1] 19 3-0 AG umul
4 891 || 46-9} 42-6| 4-3|] 0.2] 0-1] 24 5-0 || Woolly cirri and cirrous haze ; cumuli.
6 884 || 43-7) 40-4] 3-3]} 0-2) 0-1] 20 || 25:—:— 6-5 || Seud and loose cum. ; cir.-str., woolly cirri, and cur
8 880 || 42-3) 39-8] 2-5|/ 0-1] 0-1] 20 10-0 || Mass of cirro-stratus. [haze ; clouds tinged
10 873 | 40-9) 38-8| 2-1|| 0-1| 0-1| 26 10-0 || Large cirro-cumulo-strati.
18 || 29-843 || 36-0} 34-6] 1-4]| 0-1] 0-0} 22 0-5 || Patches of cirro-stratus.
20 858 | 36-1| 34-6] 1-5 |] 0-2} 0-0] 24 | 31:—:— | 7-0 || Scud; patches of cirro-strati and streaks of cirm,
22 863 | 39-3} 37-7) 1-6|| 0-2) 0-1] 21 3-0 || Cirri; cirro-strati; patches of scud.
13 0 874 | 43-7} 41-5] 2-2)! 0-8} 0-2] 24 2-0 || Scud, cirro-strati, and haze on horizon.
2 869 | 47-3) 43-3] 4.0] 0-3] 0-1} 24 || 29:—:—J| 3-0 | Loose cumuli and cumulo-strati; cirro-str. a
4 865 | 47-0} 43-2| 3-8|| 0-3} 0-4} 26 | 28:—:—| 3-0 Id: bands of cir.-str. to NE. ; loos
6 861 | 44-1} 40-6} 3-5] 0-3] 0-1] 26 2-0 || As before ; clouds tinged red. [cirrous
8 863 || 40-6| 38-2] 2-4] 0-2) 0-1) 26 1-0 || Cirro-strati to NE. f
10 850 || 40-8| 38-6] 2-2] 0.2} 0-2) 25 3-5 || Woolly cirri and cirrous haze.
18 || 29-850 || 41-2) 38-3] 2.9]! 0-4] 0-2) 28 10-0 || Cirro-stratous scud.
20 864 || 41:0) 38-6| 2-4], 0-2) 0-0) 24 ||} —:30:—]} 10-0 Id.
22 897 || 43-2) 39-5) 3-7] 0-1 | 0-2) 27 || —:31:— 9-9 Id.
14 0 928 || 45-3| 41-6! 3-7|| 0-3] 0-1] 29 || —: 0:—] 10-0 Id.
2 957 || 45-7] 41-3] 4.4] 0-4] 0-1} 28 || —: 0:—|| 9-9 Hols: bands of cir.-str. to NE.;
4 958 || 45-5] 41-7| 3-8] 0-1] 0-0] 24 | —:31:—|| 8-0 | Cirro-cumuli. (ha
6 978 || 43-5] 40-4! 3-1] 0-1] 0-0] 22 |} —:31:— 9-9 Id.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, HE. = 8, S.=16, W.=
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. .
Feb. 9118. Observation made at 18h 9m.
Feb. 134185. Observation made at 18h 6m,
Dairy METEOROLOGICAL OBSERVATIONS, FEBRUARY 14—21, 1846. 363
} THERMOMETERS. WIND.
i Clouds,
= Maximum Se. Crs. :Ci/ « Sky Species of Clouds and Meteorological Remark
ae} at 32°. || Dry. | Wet. | Diff.) force in Prom fee plowase ‘ hip aaw | aee Re ee fF
| 1h, | 10m
i in. ° ° ° || rs. | Ibs. | pt. |] pt. pt. pt. |) o—10.
29-986 || 43-2} 39-8) 3-4|| 0-1] 0-1] 24 10-0 || Scud and cirro-stratus.
29-993 || 43-2) 39-8] 3-4|| 0-2} 0-1] 26 10-0 || Scud.
29-996 || 44-8} 41-8} 3-0] 0-4} 0-1] 20 3-0 || Masses of scud and loose cumuli; cirro-strati.
/ 29-941 || 45-6| 42-5} 3-1]] 1-5] 0-6] 26 | 10-0 || Thick cirro-stratus.
10) 29-959 || 45-0} 42-3] 2-7] 0-8} 0-1] 20 10-0 Id.
29-973 || 46-7| 43-7) 3-0|) 0-3) 0-1] 22 ||—: 0:—J| 9-5 | Cirro-stratous scud; scud lying on Cheviot.
@ 30-001 || 47-8) 44-3} 3-5] 0-2| 0-1) 18 |—:30:—]| 9-8 |) Cirro-strati; patches of scud.
30-013 || 48-6} 44-4] 4-2}| 0-1} 0-1} 23 9:8 || Wavy cirro-strati.
29:992 || 49-3} 45-4) 3-9] 0-1} 0-0} 23 || —:28:—J] 9-5 || Cirro-cumulo-strati.
986 || 44:0} 41-8] 2-2} 0-0} 0-0} 20 | —:28:— 5-0 Id. ; cirro-strati; haze.
994 || 42-6) 41-2] 1-4|| 0-0} 0-0] 10 10-0 || Dark.
996 || 42-9} 41-4] 1-5]| 0-0} 0-0} O 10-0 Id.
8 29-956 || 40-7) 39-4] 1-3] 0-1} 0-0] 18 9-8 || Seud and cirro-strati.
942 || 41-7] 39-3] 2-4] 0-0] 0-0] 24 || —:24:—]| 9-5 Td.
941 || 43-5/ 41-0/ 2-5] 0-1] 0-0 —:25:—J| 8-5 || Cirro-stratous seud; woolly cirri; patches of scud.
_ 910 || 47-0} 42-2} 4-8) 0.5] 0-3} 28 || 29:—:—] 9-0 || Scud and cirro-stratous scud ; cumuli and cirri.
| 880 || 46-7| 42-0] 4-7|| 0-4] 0-4] 30 9-9 Td. ; cirro-strati.
4 866 || 46-5| 42-4] 4-1] 0.3] 0-1} 28 || 28:—:—] 9-8 Idi ; slight shower to E.
| 847 || 44-5} 41-5} 3-0] 0-1} 0-1} 25 || —:29:—]) 10-0 || Dense mass of wavy cirro-strati.
| 836 | 43-2] 40-2) 3-0] 0-1] 0-0| 23 4-0 || Cirro-strati; clear in zenith.
1) §=—. 830 _ || 42-2} 39-8} 2-4|| 0.0] 0-0} 21 10-0 Id. ; dark.
| 29-776 || 39-7| 37-5] 2-2|| 0-1] 0-0] 24 9-5 || Cirro-stratous scud.
790 || 40-0} 37-9} 2-1] 0-1} 0-0} 24 |} —: 0:—| 10-0 Id.
797 || 42:0) 39-9} 2-1] 0-1] 0-0] 18 || —: 0:—/J 10-0 Id
) 809 || 45-5] 41-8} 3-7|| 0-0] 0-0) 22 ||—: 0:—] 10-0 Id
A 800 || 49-2} 44-3} 4-9] 0-1] 0-0] 22 |} —: 0:— 9-5 Id
4 788 || 48-5) 43-4] 5-1] 0-1] 0-0 9.5 Id.
B} «= 793 || 45-0| 41-2} 3-8] 0-1] 0-1] 21 | —:28:—] 8-5 Id. ; clouds tinged red to N.
: 788 || 43-9) 40-8} 3-1]] 0-1] 0-1] 23 10-0 Id. ; dark.
} 787 || 42-1| 40-0} 2-1] 0-1} 0-0] 21 10-0 IGhe id.
: 717 || 41-0} 38-6} 2-4} 0-2) 0-1] 19 9-9 || Cirro-stratous scud ; clouds broken.
f 729 || 41-0] 38-2] 2-8] 0-2] 0-1] 19 10:0 || Dense mass of cirro-strati.
2 735 || 42-9] 40-0] 2-9] 0-0] 0-0} 24 | —: 0:—/! 10-0 || Cirro-stratous scud.
U 748 || 46-0} 41-8} 4-2] 0-0] 0.0 —:30:—| 10-0 Id.
“ 747 || 45-1) 41-6| 3-5] 0-1} 0-1] 18 10-0 Td.
4 749 || 43-6} 40-4} 3-2]| 0-2] 0-1] 24 10-0 Td.
‘ 754 || 42-5] 39-6] 2-9] 0-1) 0-0} O || 28:—:—|| 10-0 || Thickscud; dense cirro-stratous scud and cir.-str. above.
: 769 || 41-9} 39-1| 2-8} 0-0| 0-0 10:0 | Dark.
i 786 || 41-9] 39-2} 2-7] 0-0} 0-0} 20 10-0 Td.
&| 29-796 || 39-3} 37-6} 1-7] 0-0| 0-0 10-0 || Dense cirro-stratous scud and cirro-strati.
( 801 || 39-0} 37-1} 1-9]| 0-0} 0-0} 16 10-0 Id.
: 804 || 39-8} 37-9| 1-9] 0-1] 0-0} 20 10-0 Id
i 806 || 41-7} 39-2} 2-5]| 0-1} 0-0} 18 || —:24:—|| 10-0 | Id
5 769 || 44-5) 40-3] 4-2]| 0-1] 0-0] 16 10-0 Td.
; 750 || 44-8} 40-0} 4-8]| 0-1} 0-0} 16 || —:24:—J| 10-0 || Dense cirro-stratus and scud.
q 754 || 43-4} 40-0] 3-4) 0-1] 0-0) 18 10-0 Id.
{ 747 || 42-8} 40-3] 2-5|| 0-1] 0-0} 22 10-0 Id. ; dark.
(| 739 || 42-3] 40-4] 1-9] 0-0} 0-0 10-0 Id. ; id.
Lf 29-684 || 46-6] 45-4] 1-2|| 0-2! 0-2] 16 10-0 || Densely overcast; some rain has fallen during the night.
4| 681 | 46-9| 45-6] 1-3]| 0-4| 0-1] 17 || 20:—-:—|| 10-0 || Thick scud and cirro-stratus.
2 655 || 50-3| 48-4] 1-9] 2-2| 2-5] 19 |} 19:—:—]| 9-8 || Scud; cirro-strati and woolly cirri.
a 670 || 50-6] 48-7} 1-9) 3-1} 1-4] 18 |} 19:—:—J 10-0 Id.; dense mass of cirro-stratus ; slight drizzle.
ie 640 || 52-4) 49-4] 3-0 || 3-0} 1-4] 19 || 21:—:—] 10-0 Id. ; id.
8 648 || 51-3! 48-4] 2-9) 2.8 1-4| 19 || 20: —:23]| 9-0 || Id.; woolly, linear, and diffuse cirri; cirrous haze.
¢ direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H. = 8, S.=16,W.= 24. The
olns of the three strata of clouds, Sc. (scud), ©.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
364 DatLy METEOROLOGICAL OBSERVATIONS, FEBRUARY 21—28, 1846.
THERMOMETERS.
WIND.
Time. || at 32°. Dry. | Wet. | Diff.
8 388 || 50-0] 47-3
10 382 || 48-5] 47-2
18 || 29-359 || 45-9} 45-2
20 366 || 45-0) 44-3
22 382 || 50-0} 48-4
28 0 392 || 56-6) 53-2
2 393 || 55-25 52-0
Maximum
force in
14, ,10™,
oS
ite}
SoU SS.9 (9 Pere hoe eS.
Are BHO OTD NDHEAMNH CGHERrON
aD NRONRK ONWH O
From
pt.
20
19
19
16
Clouds,
Se. : C.-s.: Ci,
moving
from
pt. pt pt.
1:—:—
bo
i=)
|
=
10.0)
17:17:—
ys == 2 1S
—:17:—
19:—:—
20 :—:—
Sky
clouded.
~ Species of Clouds and Meteorological Remark
Seud ; mass of cirro-stratus.
Id.; clouds broken,
Id.; cirro-strati and haze; stars dim.
ee and cirro-stratus. At 3h, the maximum pressure of ]
was 9°2 Ib.; and at 75, it was 11°0 Ib.
Very slight drizzle.
Thick scud and cirro-stratus.
Scud ; cirro-strati above.
,id.; cirro-cumulo-strati and cirro-strati.
Seud and loose cumuli; cirro-strati.
Id.
Tides cirro-strati.
Scud ; a few drops of rain.
Td.
Seud.
Id.; woolly cirri and cirro-strati.
Id.; woolly cirri.
IGE E id. ; passing showers.
Scud and loose cum. ; woolly cirri ; showers’— siz
Scud; woolly cirri and cirro-strati, [obsery
Id.; woolly cirri; cirro-strati.
Id.; dark; rain!
Id.; id; rain ;
Scud and cir.-str.; occasionally a few drops of rain,
Scud ; cirro-strati.
id=: id.
Id. ; id. ; cirri.
Seud and loose cumuli; cirri and cirro-strati.
Seud ; cirro-strati ; rain”®
Id. ; ida rain? 4
Taig id. [tremity of an auroral ard
Patches of scud ; long streak of cir.-str. from the E. ¢
Scud and cirro-strati.
Id.
Id. ; woolly cirri.
Seud ; cirro-strati; drops of rain ; rainbow.
Seud and loose cumuli.
Cir.-str. scud ; woolly cirri ; cir.-str.; patches of
Thick woolly cirri and cir,-str. ; cir.-str. ; drops
Seud; dark; rain!
Id.
Masses of seud and cirro-strati.
Seud.
Id. ; thick woolly cirri; cirro-strati.
Id.; dense mass of cirro-stratus and haze.
Thick mass of cirro-stratus ; patches of seud.
Scud and dense homogeneous cir.-str. ; sky to
Cir.-str. scud ; wavy cirro-strati; shower 15™
Seud and cirro-strati.
Id.
Cirro-strati on horizon.
Scud ; woolly cirri.
Cir.-cum.-str. and cir.-str. ; cum.-str. on E.
Scud; cirro-strati; cumuli and cumulo-strati.
Id.; mass of cirro-stratus.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, S.=16, W.= 24, Th
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Datty METEOROLOGICAL OBSERVATIONS, FEBRUARY 28—Marcu 7, 1846.
§ 28-998
3 29-042
082
9-148
176
197
216
215
238
254
280
293
29-256
0} 272
2} 278
D} 291
2} 282
‘2
|
|
|
4); 284
6} 268
B} 6252
0} 222
8 29.275
0} 315
2| 342
0|' 357
THERMOMETERS.
WIND.
Dry.
BO ee ON Se ee OHO ce
J HUW WRAOaAK HID
46-2
43-4
41-2
41.0
39-4
36-8
42-0
46-4
Diff.
Maximum
force in
IDEs |) UO}
=
aa ise
a
OW AnNDHKUNM]AYWH UW OGMHH!?
DO pO KR RK NR kK RK OW RK KH OF KS
CMP er oOwNoron +
RW DBAKRMoOmwWaAwWwonm LB
0-5
O-
Se.: C.-s.: Ci.,
Clouds,
220):
ea Sie
28
Sky
clouded.
365
Species of Clouds and Meteorological Remarks.
Masses of ragged scud ; dense homogeneous cir.-str. ; sky
Scud ; cirro-strati. [on W. horizon.
Id. ; id.; sky in zenith.
Niel, id.
Scud and cirro-strati.
Scud.
Id.
Scud and loose cumuli; cirro-strati. ©
Id. ; id. ©
Id. ; woolly cirri; mass of cir.-str.
Nearly homogeneous mass of cirro-stratus.
Smoky seud ; woolly cir. ; sheets of cir.-str.; cum.-str. on S. hor. ; cir.
Seud: cir-str ») [haze; clouds tinged yellow; sky stormy-looking.
5 Ss
Id.; id;
Seud ; rain”
Loose scud ; homogeneous mass of cirro-stratus ; rain!
Scud ; dense mass of cirro-stratus ; rain!
raint )
Id. ; id. ; rain?2
IGE id.
Ill, 2 id. ; rain?®
Id. ; id. ; id.
Id. ; id. ; id.
lich, = TELS id.
Seud and cirro-strati.
Seud: rain”? ; stormy.
Id. and loose cumuli.
Scud ; cirro-stratous scud.
Scud and loose cumuli.
streaks of cirri.
id. ; cum. to N.
yy © OO
Id.; cirro-strati.
Id. ; cumuli and cumulo-strati; nimbi to E.
Loose cum. ; piles of cum. ; cum.-str. ; nimbi on S. hor.
Cumuli; streaks of cirro-strati.
Seud and cumuli on N. horizon; streaks of cirri.
Quite clear.
Cirri to W.
Cirro-strati ; fog. [hoar-frost.
Id. id.; objects visible at 40 yards; much
Cir.-str. scud ; mass of cir.-str, and woolly cir. ; cum.-str. and haze on
ASO) {O)©) ©)
Cir.-cum.-str. and woolly cir. ; cum.-str. and cir. haze.Q [E. hor. @
Cumuli and cumulo-strati on horizon ; cirri to W. ©
Thick seud ; cirro-strati.
Ils id.
Scud and cirro-cumulo-strati ; cirro-strati.
Seud ; rain?
Scud and cirro-strati.
Scud ; sheets of cirro-strati and woolly cirri.
Seud; woolly cirri and cirro-strati.
Scud and loose cumuli; woolly cirri.
fOXOKO)
The irection of the wind is indicated by the number of the point of the compass, reckoning N.= 0, H.= 8,S.=16,W.= 24, The
HO) of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
h 24 4h 40m,
Mi : 34 2h. Observations made at 22 10™,
Tt)
‘NS. AND MET. ops. 1846.
The clouds were marked with hollows and hanging fragments ; heavy gusts of wind and drops of rain.
42
366 DarLty METEOROLOGICAL OBSERVATIONS, Marcu 7—13, 1846.
THERMOMETERS. WIND. Cianas
Ae Nash eee, Se.:C.-8.:Ci.,|] Sky
eee eae Felice oe Rored tt torg mee g |iclouded. Species of Clouds and Meteorological Rem
1», )10™,
d. h in. 2 i ce: Ibs. | lbs. pt. pt. pt. pt. 0—10.
7 2 || 29-369 | 48-5) 43-7| 4-8] 1-1] 0-7} 22 | 25:—:—|| 7-0 | Seud and loose cumuli; woolly cirri.
4 396 || 46-1] 41-7| 4-4] 0-8] 0-9] 25 || 26:—:— 8-5 || Loose cum. and cum.-str. ; sheets of cir. -str.3 @ 0
6 438 || 43-2] 39-8} 3-4|| 1-3] 0-1) 21 3-0 || Bank of cirro-strati and nimbi to W. ; cum.-str.
8 486 || 39-7| 37-0| 2-7|| 0-8| 0-2] 24 0-5 || Cirro-strati on E. horizon.
10 522 || 36-3} 35-0] 1-3] 0-2} 0-0| 20 0-1 || Haze on E. horizon.
233|| 29-625 || 44-2} 40-0/ 4-2]| 0-3) 0-1] 20 | 28:—:28] 0-5 || Patches of scud; sheets of cirri.
8 18 || 29-852 || 29-2} 29-2] --- | 0-6] 0-0} 18 0-2 || Cirri and cirro-strati on E. horizon.
20 906 || 32:0} 31-5| 0-5 || 0-0} 0-0| 20 || 22:—:—J}| 7-0 || Seud and cirro-stratus.
22 930 || 40-0} 38-7] 1-3) 0-0} 0-0] 22 || —:25:—J|| 7-0 || Loose cirro-cumulo-stratus.
9 0 945 || 45-8| 43-0} 2-8]| 0-2} 0-1] 20 || 22:—:—1|| 10-0 || Seud; rain®®
2 947 || 46-6| 43-6| 3-0 || 0-4| 0-2| 20 || 22:—-:—|| 9-7 || Id.; cirro-strati.
4 944 | 48-7) 45-2) 3-5] 0-1] 0-0) 20 || 26:—:—1| 9-9 || Thick smoky scud; cumuli; cirro-strati.
6 || 29-969 || 47-0| 43-5] 3-5 || 0-3] 0-0} 26 || 26:30:—|| 7-0 || Scud; cirro-cumuli.
8 30-012 || 44-1] 41-5] 2-6]) 0-1] 0-1) 25 7-0 || Cirri and cirro-strati; faint traces of a halo.
10 044 | 42-1) 40-3] 1-8] 0-1] 0-0} 20 | —:30:— 8-0 || Cirro-cumulo-stratus.
18 || 30-087 || 42:0} 40-0} 2-0]| 0-2} 0-1] 18 9-5 || Seud and cirro-strati. y
20 091 || 42-3] 40-2} 2-1) 0-3} 0-2) 16 ||—:24:—}) 9-5 || Dense mass of wavy cirro-strati and cirro-cum-
22 089 || 46-3] 43-2] 3-1]| 0-7| 0-4) 20 || —: 26: — 7-0 || Cir.-cum.-str., moving very slowly; sheets of cir.-str. and
10 0 084 || 50-2) 46-0] 4-2} 1-4] 0-9} 20 | —:24:— 6-0 Cir.-cum.-str.,cir.-str. & cir. haze; patches of scud; portione
2 064 | 51-3) 46-4] 4-9]| 1-7| 1-8) 22 | 23:—:— 9-5 || Masses of scud and loose cum. ; cir.-cum.-str. ; ¢
4 056 || 49-2] 44-6) 4-6]) 2-5] 1-3) 20 | 20:—:—J| 10-0 || Loose seud ; sheets of cirro-strati. 1
6 029 | 47-0) 43-6} 3-4] 1-1] 0-2| 22 || 20:—:—]) 10-0 | Patches of seud; dense cirro-stratus and haze.
8 || 30-016 || 44-6] 42-1] 2-5}|| 0-5) 0-2} 23 10-0 || Loose send, cir.-str., and haze ; fine coloured lu
10 || 29-992 || 46-3] 43-4] 2-9] 1-0] 1-1] 22 | 10-0 || Thick scud. [at 7
18 ||30-070 | 45-0} 44-0] 1-0|| 1-6] 0-0} 20. 10-0 || Scud and cirro-strati; rain!
20 144 || 45-0} 44-2] 0-8 || 0-0) 0-0} 22 10-0 || Cirro-stratous scud and cirro-stratus. Hee
92 917 || 46-5} 45-6] 0-9} 0-6} 0-0 A — oie 9-8 Cir.-cum.-str.; patches of loose ragged cum. on hor. ; showe
iil © 286 | 48-6) 44-4) 4-2] 0-8) 0-3) 4 || 5: O0:—|| 9-5 || Scud and loose cumuli; cirro-cumulo-strati.
2 303 || 48-5] 44-2) 4-3 |) 0-2) 0-0) 4] 8:—:—] 4-0 Id.
4 332 || 48-5| 44-0) 4-5] 0-2} 0-1) 7 || —:—:28|| 4-5 || Woolly and mottled cirri ; cirro-strati. }
6 345 || 46-3] 42-6| 3-7] 0-0} 0-0} 14 0-5 || Cirro-cumulo strati on horizon ; thin cirri over
8 352 || 39-5| 38-1] 1-41] 0-0} 0-0} 18 0-3 || Thin cir. and cir, haze toeastward; very faint lu
10 380 || 35-5] 34-9] 0-6 || 0-0} 0-0| 20 0-0 || Clear.
18 || 30.347 || 41-7| 40-7) 1-0|| 0-0} 0-0 10-0 || Cirro-stratus.
20 341 || 46-0} 44-8] 1-2] 0-1] 0-1} 20 | 21 :—:—J| 10-0 || Cirro-stratous scud ; mass of cirro-stratus and haze
22 332 || 48-1) 46-3] 1-8 || 0-4] 0-4} 20 | 2] :—:—]) 10-0 | Loose scud; dense mass of clouds ; slight fog.
12 0 307 || 52-0] 48-3] 3-7] 0-7} 0-4) 19 || 20:—:—] 10-0 || Scud; feed cirro-strati ; hazy.
2 261 || 52-6) 47-4] 5-2] 1-7] 1-1) 19 | 20:—:—J| 5-0 || Seud oh loose cumuli ; hazy.
4 225 || 50-4] 46-4] 4-0}] 2-1] 1-2] 19 | 20:—: — 8-5 Id. id. ; cirro-strati.
6 195 | 47-8] 44-8] 3-0]) 2-4] 1-1] 19 || 21:24:24 4-0 || Masses of seud ; woolly cirri and sheets of ei
8 165 | 45-0] 43-1] 1-9|| 3-0} 2.1) 20 4-0 ides woolly cir. ; paraselene to the north
10 149 | 47-1] 45-0} 2-1] 2-3) 1-5) 19 9-5 || Thick scud and loose cumuli. [moon; broken
che
18 || 29-996 | 46-7] 44-2} 2-5]) 3-4] 0-4] 18 9-5 || Seud and cirro-strati. ]
20 979 | 45-4] 44-4] 1-0]] 1-3] 0-7| 18 10-0 || Patches of seud ; homogeneous mass ; rain?”
22 950 | 47-0} 45-1] 1-9|| 2-5| 0-8| 20 || 22 :—:—]] 10-0 || Loose scud ; dense cirro-stratus.
13 0 920 | 52-6| 47-9] 4-7 || 2-2) 2.0) 20 || 23:—:—]| 8-0 || Scud and loose cumuli.
2 919 | 52-9} 46-7] 6-2|) 3-7) 2-8| 21 | 24:—:—]] 4.0 Id. q
4 906 | 52-2) 45-5} 6-7 |) 3-7| 3-0) 23 | 24: —:— 8-5 aps woolly cirri and cirro-s
6 911 | 47-3) 42-3) 5-0}| 3-1] 1-3] 21 || 24:28:28] 8-0 |! Scud; woolly cirri aud cirro-strati.
8 915 | 45-4] 41.4) 4.0] 1-3| 0-4) 22 8-0 || Cirro-strati and cirrous haze.
10 907 | 44-5| 40-2] 43)| 0-3} 0-2} 19 9-5 || Thick scud, cirro-strati, and woolly cirri.
18 || 29-626 || 44-3] 42-3] 2-0)| 2:5] 2-5] 19 10-0 | Homogeneous mass ; rain! ¢
20 522 | 45-6] 44-8} 0-8 | 2-8| 1-6) 20 | 22: 24:—)] 10-0 | Loose scud ; eieronstns scud ; cir.-str. and cir
22 458 | 53-1] 50-0] 3-1! 2-5! 3-0) 23 || 24:-—:—J| 10-0 | Thick seud. me
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, KH. = 8, Sh = = 16, Ww. = 24, |
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. x
Mar. 74 35, Great piles of Cumblo-sbrati and nimbi ; also masses of nimbus having the appearance of flames, with occasionally smal
streaks of cirro-stratus below. i
Mar. 11. Humble-bee seen.
Datty METEOROLOGICAL OBSERVATIONS, Marcu 14—20, 1846. 367
THERMOMETERS.
at 32°. Dry. | Wet.
422 || 26-6| 25-7
| 427 || 25-0} 24-4
i) | 29-434 |] 12.2] 12.3
|| 443 || 9-3] 10-0
449 || 17-0| 17-0
446 || 26-3| 24-0
430 || 31-4| 28-5
i §6=«-:- 436 ||: 32-3 | 29-2
440 || 31-3| 28-9
440 || 27-8| 26-2
441 || 26-5| 25-6
} 29-452 || 26-3] 25-8
‘ 466 || 25-5| 24-2
f 474 || 29.5| 27-6
33-9] 31-2
36-4| 33-6
36-7 | 34-6
35-0] 31-6
25-7 | 25-0
; 23-6 | 22-9
30-7 | 29.0
32-8| 30-2
Diff.
worror op
1s
WIND.
Maximum
force in |Pyom
10™.
eeeooeso oor
SCOR KR PNW WR RS RF yw
0-0
26:
26:
On
224:
24:
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Scud and loose cumuli; woolly cirri and cirro-strati.
Id. ; id.
Id. ; woolly cirri ; cirro-strati; cum.
Masses of scud and loose cum. ; woolly and mottled cirri.
Scud and cirro-strati. }
Cirro-strati and cirro-cumuli.
Masses of scud and loose cumuli; cirro-cumulo-strati ; cirro-strati ;
milky cirrous haze; causing a solar halo.
Scud and cirro-strati; rain®®
Seud ; mass of cirro-stratus; rain!
Id. ; id. ; id.
Scud and loose cumuli; cirro-strati and cirrous haze.©
Id. ; rain?
Id. ; nimbi on hor. ; rain or hailto W. and N.
Seud and nimbi; rain? and sleet.
Scud.
Id.; aurora seen through clouds.
Bank of scud on E. horizon. »)
Scud and cumuli on horizon; woolly cirri; haze. ©
Cir.-str. and cir. haze ; patches of scud ; cum. on E. hor.
Scud & loose cum. to N. ; cir.-str. & cir. haze ; sky to N.
Cum. ; cir.-str. and woolly cirri ; ill-defined solar halo.
Scud and cumuli; cirro-strati; cirrous haze. (S)
Id. 8
Thick scud ; a few flakes of snow. [tion.;
Dark; fine hail and snow occasionally since last observa-
Homogeneous mass ; snow 42 inches deep.
ick 2 snow?
Id.; snow’ ceased in a few minutes.
Cirro-stratus and cirrous haze.
Id.
Id. ; snow!
ICs sky on W. horizon.
Cir.-str. and cirri on E. horizon ; mist above Tweed. )
Cum., cirri, cir.-str., and haze on E. hor.; stratus in the
Patches of cumuli on NE. horizon. © [valleys.©
Hazy on horizon; streaks of cirro-stratus to E. ©
Loose cumuli and cirro-strati on E. horizon. ©
Cumulo-strati and haze on E. horizon.
Patches of scud and cum.; cum.-str. on EK. and N. hor.©
Seud, loose cumuli, and cirro-stratous scud.
Light snow commencing.
Seud ; cirro-strati.
Woolly cirri; cum.-str. and cir.-str. on horizon.
Cirro-strati towards horizon.
Id.
Id.
Id.
A few masses of loose cumuli and scud.
Haze round horizon.
Id.
Dense mass of cirro-stratus.
Nearly homogeneous.
OO0000Y
jhe direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8,8. =16, W.= 24. The
r ons of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
arch 161 2h, Heavy showers of hail since 1» 30™;
rain’? at present, with occasional flakes of snow.
arch 174 22h, Anemometer vane found frozen.
10
DAILY METEOROLOGICAL OBSERVATIONS, Marcu 20—27, 1846.
THERMOMETERS. WIND.
Clouds,
Maximum tae eer
c force in
Dry. | Wet. | Diff he. From erin
2 ° 2 Ibs. | lbs. | pt. pt. pt. pt,
34-3 | 31-5| 2-8] 3-8] 3-6] 16
34:8 | 34-3] 0-5 || 4-4] 3-1/16 v.
35:0] 33-4/ 1-6] 3-8] 1-3) 16
35-8} 34-8} 1-0|| 6-2) 1:3) 17 || 17:—:—
37-1] 35-2] 1-9} 2-8] 2-1) 16
35-2| 34-4) 0-8] 1-4] 0-1! 20 || 20:—:—
33-4| 32-9} 0-5 || 0-3] 0-0) 18
42.5] 40-8} 1-7]] 1-7| 0-8} 17 || 18:18:—
31-0} 32-0) --- 1-5} 0-0| 18 || —:—:18
35-8| 32-7) 3-1]| 0-0} 0-0) 18
39-7| 37-3| 2-4)/ 0-0} 0-0; 16 || —:20:—
44-8} 41-1] 3-7 || 0-3} 0-1} 16 || 16:—:—
42-0] 39-3] 2-7] 0-3| 0-2] 16 || 18:—:—
41-7| 39-2| 2-5]/ 0-2) 0-2) 14
42:0} 39-8} 2-2]| 0-5) 0-1} 16 || 18:—:—
39-1] 38-1] 1-0] 0-3] 0-1) 15
38-6) 38-0] 0-6] 0-1! 0-0} 20
35:2) 35-0) 0-2]| 0-1) 0-0! 14 || —:20:—
38-6 | 38-1] 0-5 || 0-0} 0-0| 20
42-8/ 41-1] 1-7|| 0-0} 0-0} 23 | 19:18:—
50-3] 46-4} 3-9] 0-1] 0-0} 14 || 15:16:—
49-4) 45-2] 4-2]] 0-2} 0-1| 16 || 15:16:—
46-5 | 42-8) 3-7|| 0-2] 0-1} 18 || 16:—:—
45-8} 42-7| 3-1]} 0-2] 0-1| 18 || 20: —:—
39-0| 38-2! 0-8) 0-0] 0-0
37-0| 36-5! 0-5 || 0-0} 0-0} 20
32-5 | 32-2] 0-3]/ 0-0/) 0-0] 11 || —: 21 :—
34-2] 34-0] 0-2]] 0-0} 0-0] 18 || —: 20:—
42.8| 41-0} 1-:8]) 0-0] 0-0} 17 || 20:—:—
45:5| 43-7] 1-8]| 0-0] 0-0 20 :—:—
46:3| 42-3} 4-0] 0-1] 0-1} 18 || 20: 20:—
47-7| 43-4] 4-3] 0-1] 0-1] 18 |} 21:—:—
48-6} 43-6] 5-0} 0-0} 0-0} 16 || 24:—:—
40:7| 39-1] 1-6|| 0-0! 0-0
34-8| 34-2] 0-6/| 0-0] 0-0} 20
32-6| 32-2] 0-4]) 0-0} 0-0} 18
35-0| 34-7} 0-3]) 0-0] 0-0] 18 ||—: 0:—
41-9) 40-1} 1-8] 0-0] 0-0} 24 | 0:—:—
44-7) 41-5] 3-2]) 0-0) 0-0} 26 || 29:—:—
46-7 | 43-7] 3-0]| 0-0) 0-0! 16 || 30 :—:—
46-0} 42-0] 4-0] 0-1] 0-1} 21 || —:24:—
44-7| 41-8] 2:9} 0-0] 0-0] 18 || —:28:—
41-4] 39-4] 2-011 0-0] 0-0} 18
37-9| 36-1] 1-8]| 0-0] 0-0} 22
39:2)| 37-2) 2-01) 0-2) 0-1) 22 05 - — = ——
40:7| 38-8] 1-9|] 0-1] 0-0| 20 || 24:25:25
44-3] 40-6) 3-7] 0-1] 0-1} 21 || 27:—:—
47-3 | 42-2] 5-1]|| 0-3| 0-2| 24 || 26: —:—
47-8} 41-6} 6-2)| 0-5] 0-2} 20 | 25) De
43-0} 39-7| 3-3]|_1-4] 0-1} 25 || 26:23 : —
46-2) 41-2/ 5-0]) 0-6| 0-2| 24 | 26: 25 :—
41-4] 38-5| 2-9] 0-2} 0-1) 21 || 26:—:—
38-9| 36-9! 2-01!) 0-1] 0-1] 18 |
Sky
clouded.
eeeeee
Species of Clouds and Meteorological Remark
Cirro-stratus and cirrous haze.
Snow?
Id.
Scud ; mass of cirro-stratus.
Seud and cirro-strati.
Seud ; several showers of rain since last obsery
Clear.
Seud ; woolly cirro-strati; showers occasionally
Woolly cirri; cir.-str. and haze; seud on Chey:
Woolly cirri and cirro-stratus ; cirro-strati,
Woolly cirro-strati.
Loose cumuli; cirro-strati.
Seud ; thick cirro-stratus.
Jeb s id.
Id.; dense cirro-stratus ; shower”?
ifel.s id. ; id.
Id.; rain?
Cirro-stratous scud and cirro-strati.
Woolly cirri and cirro-strati.
Seud ; woolly cirro-strati.
Ides id.
lds id.
Id.; cumulo-strati; cirro-strati ; drops of re
Scud; nimbi; loose cum. and cir. str. : rainingll (0
Seud and loose cumuli. [showers a
Scud and cirro-stratus.
Cirro-cumulo-strati ; cirro-strati; mist in the yall
Id. ; id.
Scud ; cirro-cumulo-strati; drops of rain.
Loose scud ; thick scud and cir.-str.; occasional sho
Scud and loose cum.; sheets of cir.-str. and wo. ¢
Scud and loose cum.; nimbi; cir.-str. ; woolly eit
Heavy cumuli and seud.
Thick woolly cir.-str. rad. from N by W., with the radii curved
Scud and cirro-strati. [wards the E. ; patches of
Dense mass of cirro-strati; hoar-frost on the gr
Seud ; mass of cirro-stratus.
Wiemses of loose cumulous scud ; cirro-cumulo-stral
Loose cumuli; cir.-cum.-str.; cum.-str. on hori 20
Seud, loose cumuli, and creer scud.
Cirro-cumulo-strati ; cumuli and cirro-strati.
IGl5 hazy.
Cumulo-strati to S.
Cirro-stratus and haze on horizon.
Cirro-stratous scud ; cirro-strati.
lds; woolly cirri and cirro-cumulo sir
Seud ; cirro-strati. q
Seud feel loose cumuli; cirro-strati.
Heavy cumuli; nimbi; partial showers to N. :
Scud and nimbi; cir.-cum-str. ; cum.-str. on hor,; heavy shower of hail late
Loose cum. ; cum.-str. ; nimbi to E. ; sheets of cir-stt.0
Scud and sheets of cirro-strati.
Id,
os
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, S. = 16, W. = 24. ;
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
March 214 102,
March 26¢ 102,
Observation made at 105 10™,
Observation made at 19» 5m,
re
Dainty METEOROLOGICAL OBSERVATIONS, MARcH 27—APRIL 3, 1846. 369
THERMOMETERS. WIND.
Clouds,
a aee Se.:C.s.: Ci. Sky
a ee! nee i cpeties oo moving alondade Species of Clouds and Meteorological Remarks.
rom
1h, |10™,
ee. in. > e' Ibs. | lbs. | pt. || pt. pt. pt. 0—10
99-374 || 35-8] 35-0) 0-8|| 0-1] 0-0 4:—:—)] 10-0 || Dense mass of cirro-stratous sceud.
387 || 37-8| 37-2| 0-6] 0-0} 0-0] 17 6:—:— 4-0 || Loose scud; cumulo-strati on E. horizon; cir.-str. ©
402 || 44-0] 40-7| 3-3]) 0-2} 0-3} 5 || 4:—:—] 8-0 || Heavy loose cumuli; cumulo-strati and scud.
| 410 | 43-7 40-0 3-7|| 0-7] 0-3} O || 4:—:—] 9-0 Id.
' 409 || 45.3] 40-4] 4-9]| 1-5] 0-7} 2 || 4:—:—|| 7-0 || Scud; loose cumuli; nimbi. (0)
411 || 44-2} 39-3} 4-9]| 1-9] 0-7] 3 3 :—:— 6-0 Id. ; id. ; cumulo-strati and mottled cirri. ©
429 || 40-0! 38-0} 2-0|| 1-7) 0-4] 0 3:—:— 3-0 lds id.; nimb. to SH., with great cir. crown. ©
453 || 38-3] 36-6| 1-7] 0-7| 0-1] 0 2:0 || Cirro-strati ; cumuli on horizon. »))
| 467 || 36-1| 35-0| 1-1]! 0-1] 0-0| 30 2-0 || Clouds on horizon ; a slight shower about 94.
/29-750 || 44-0} 37-9} 6-1]| 1-7] 0-3) 0 || O:—:—} 8-0 || Cumuli.
‘8 29.905 || 34-6| 33-7] 0-9|| 0-6} 0-0 9-0 || Cirro-stratous scud and cirro-strati.
| 909 || 36-4} 35-4) 1-0] 0-0} 0-0} 20 6-0 || Cirro-cumulo-strati aud woolly cirri; cirro-strati. ©
| 908 || 43-6| 40-7] 2-9]] 0.0] 0-0] 20 7-5 || Cir.-cum.-str. nearly stationary ; cum. on hor.; thin lin.
| 891 || 48-4] 42-1] 6-3 || 0-0} 0-0; 14 || 12:—:—] 7-0 || Scud and cumuli. [cirri and cirrous haze. ©
| 874 || 49-7| 42-6) 7-1]/ 0-0] 0-0) 10 || 14:—:—¥J 9-5 || Loose cumuli and cirro-cumulo-strati.
| 827 || 51-7| 43-3} 8-4] 0-1] 0-1] 12 |} 14:14:—] 5:5 Id. ; woolly cirri. ©
786 || 47-7} 40-7| 7-0] 0-3] 0-3) 15 || 14:14:—|| 7-0 Wek,
772 || 40-9) 37-9] 3-0] 0-5] 0-1} 14 8-0 || Cirro-cumulo-strati; homogeneous to S.
! 743 || 41-0| 37-9} 3-1]| 0-3] 0-1) 13 10-0 || Cirro-stratous scud.
18) 29-587 || 30-2} 29-6] 0-6}| 0-7) 0-0) 20 3-0 || Cirri and cirrous haze ; cirro-strati.
| 549 | 35-2) 33-8} 1-4] 0-0} 0-0) 18 9-0 || Mottled and woolly cirri and cirrous haze. ©
499 || 42-3) 38-3] 4-0]/ 0-0) 0-0} 20 9-5 || Woolly cirri; cirro-stratus and cirrous haze. (Ss),
449 || 47-8} 42-4| 5-4]| 0-0] 0-0] 18 9-5 Id. ; id. (s)
403 || 50-1] 44-1) 6-0] 0-0} 0-0} 20 10-0 || Cirro-stratus and haze, becoming denser.
| 331 || 48-8} 42-2) 6-6]/ 0-2} 0-2} 14 10-0 || Dense mass of cirro-stratus and haze.
291 || 47-0| 42-1) 4-9|| 0-0} 0-0 10-0 Id.
236 || 44-3] 41-3] 3-0] 0-0] 0-0] 14 || ——:18:—J] 10-0 Id., becoming thicker and looser.
} =: 190 || 42-3] 41-0| 1-3] 0-0) 0-0) 4 10:0 || Very thick and dark ; rain®?
29.078 || 42-5) 41-2] 1-3]] 0-9] 0-3] 20 9-8 || Cir.-str. scud ; cir.-str. and woolly cir. ; cloud red to E.
067 || 44-2] 42-7) 1-5]| 0-7] 0-6] 19 || —:—:22] 6-0 || Woolly cirri; loose cirro-strati; patches of scud. 0)
069 || 46-2| 43-2] 3-0]| 0-7} 0-4] 16 || 22:—:—)] 10-0 || Patches of seud; dense homogeneous cir.-str. and haze.
048 || 44-9] 43-1] 1-8|| 0-7] 0-0} 20 10-0 || Rain®®; dense mass of cirro-stratus and scud.
| 039 || 46-6} 44-8| 1-8|| 0-1] 0-1] 22 || 21:—-:—| 10-0 || Scud; cirro-stratus.
] «012 || 50-3| 47-4] 2-9)) 0-2] 0-1] 21 |) 21:—:—] 8.0 | Ia; id.
}) 29-003 || 47-0} 45-3} 1-7|| 0-1] 0-0) 18 || 22:—:—|] 10-0 Id. ; id,
§| 28-995 || 45-3] 44-6} 0-7] 0-1] 0-1] O 9-5 Id. ; id. }
y 988 || 43-6} 43-0; 0-6]] 0-1] 0-0] 26 8-0 || Scud and cirro-cumulo-strati.
5 28-968 || 41-6] 41-1} 0-5]) 0-1} 0-0} 20 || 22:—-:—|| 10-0 |] Scud; cirro-strati; mist in the valleys.
965 || 46-0| 44-7} 1-3 || 0-1} 0-1] 21 4-5 || Sheets of cirro-strati; woolly cirri; loose scud to N.
a} «956 || 52-3/ 49-0| 3-3 || 0-3} 0-1} 18 || 21:—:—| 7-0 || Scud and loose cumuli; sheets of woolly cirri. ©
! 941 || 53-7) 48-4] 5-3]] 0-1) 0-1} 16 || 15:—:—J| 4.0 Id. ; linear cirri. ‘s)
7 905 || 57-0| 50-5] 6-5|/ 0-1] 0-1) 4 || 14:—:14] 7-0 || Large cumuli and masses of scud ; thin woolly cirri. ©
4| 863 || 54-8) 49 7| 5-1] 0-9} 0-1} 10 |} —:14:—j] 8-5 | Cir.-cum.-str. and woolly cirri; cum. and cum.-str. ©]
E 845 || 50-2} 46-8} 3-4]| 0-3) 0-1] 6 8:—:—| 10-0 || Scud and loose cumuli; cirro-strati.
B} «852 || 44-2) 43-6) 0-6] 0-5) 0-2) 3 10-0 || Fog moved up from eastward about 7" 20™,
i 851 || 43-8| 43-3] 0-5] 0-4) 0-1) 4 10-0 || Drizzling rain”?
&| 28-823 | 43-0] 42-5) 0-5]; 1-2] 1-0) 1 10-0 |} Dense mass of cirro-stratus ; drizzling rain.
(| 856 | 42-4) 41-4] 1-0] 1-5] 1-3) 0 || 2:—:—| 10-0 || Scud; mass of cirro-stratus; drifting rain”?
2} 900 || 41-8} 40-1} 1-7] 3-8) 3-4| 1 1:—:—j] 10-0 || Id.; id. ; drops of rain.
O) 28-951 || 42-2| 40-4) 1-8|) 3-5] 3-3) 1 || 0:—:—} 10-0 Id.
3 29-026 || 42-:0| 39-0} 3-0]| 3-5} 1-6) O || 0:—:—| 10-0 Id.; drizzling rain commencing.
4 088 || 43-2) 38-2) 5-0]| 3-7) 1-7} O || 1:—:—|| 7-0 |] Seud and loose cumuli; woolly cirri. ©
¢ 145 || 42-4| 37-4} 5-0|| 3-1] 0-8) 1 1:—:—] 3-5 Id. ; id., nearly stationary.©
i) «211 | 36-9! 33-6! 3-3 1-2! 0-11 30 131:—:—|]] 2.5 || Seud. »)
1 direction of the wind is indicated by the number of the point of the compass, reckoning N. — 0, E. = 8, S.=16,W.= 24. The
ots of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Aril 24 3. Several peals of thunder heard to S., from 24 40™ till 3h 0™; a shower about 32.
MAG. AND MET. ops. 1846. 5A
Qa
370
Gott. BaRo-
Mean METER
Time. || at 32°.
d. why in.
3 10 || 29-259
18 || 29-357
20 366
in 22 351
4 0 319
2 272
4 231
6 216
8 189
10 178
2331) 29-135
5 18 || 28-962
20 || 29-069
22 069
6 0 070
2 078
4. 088
6 100
8 114
10 123
18 || 29-113
20 119
22 TB
¢ (0) 118
2, 128
4 123:
6 Hol
8 145
10 136
18 || 29-128
20 151
22 169
8 0 188
2 215
4 237
6 280
8 297
10 BPA
18 |) 29-370
20 393
22 410
9 0 413
2 409
4 401
6 405
8 444
10 439
18 || 29-466
20 482
22 488
10 0 432
2 490
4 473
6 459
Datty METEOROLOGICAL OBSERVATIONS, APRIL 3—10, 1846.
THERMOMETERS.
Dry.
Wet.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. — 0, E.= 8, S.= 16, W. =2
Diff.
WIND.
Maximum
force in
10™,
eoooesce SSoSeeeosee
ow wee — Ce et ee ce ee el
motions of the three strata of clouds, Sc. (scud), C
pt. pt.
aan |
Woe Oro OD
PrP PRP OBR D WNW NW WN WW Ww Ww
Clouds,
Se.: C.-s.: Ci.,
moving
from
pt.
Sky
clouded.
| Dense mass of cirro-stratus and seud ; drizzli
|| Loose cumuli; woolly cir. ; piles of cumuli
Species of Clouds and Meteorological Rem ar
Scud and loose cumuli.
Dense mass of cirro-stratus ; cumuli on E. hori
ide; cirro-strati.
Woolly and interlaced cirri : cumulo-strati to N.
Scud in patches ; masses of seud ; cirri and cir,
Scud; nearly homogeneous cir.-str.; slight show
Id.; cirro-stratus ; rain!
Id.; dense homogeneous cirro-stratus ; drops ¢
Densely overcast ; rain”? ; sleet occasionally.
Homogeneous cirrous haze.
Scud and cum.; cir. haze; solar halo throughout
Scud and cirro-stratus.
Seud ; cirro-cumuli.
Seud and loose cumuli; woolly and linear ci
Seud ; cumuli and woolly cirri.
Id.; dense cirro-str. ; shower of rain and sl
Scud and loose cumuli; dense mass of cirro-str;
Seud ; cirro-cumulo-strati ; cirro-strati; cir
Cirro-cumulo-strati ; cirro-strati and woolly cin
Id. ; id.
Seud ; cirro-cumuli and cirro-strati.
Tels id.
Id.; cirro-strati and cirrous haze.
dis id.
Id. ; id. ; rain??
Seud.
Id. ; cirro-cumulo-strati.
Td; id.
Id. ; cirrous mass; lunar corona.
Loose seud ; drizzling rain’?
fds § id
dss id
Scud ; id
Idss dense cirro-stratus. é
nds id. ; cirro-strati ; sky
Id. ; rs ye id.
Id.
Sheets of cirro-cumuli.
Id.
Cumuii, cirro-strati, and haze on horizon.
Seud and cumuli; cirro-strati.
IGE id. ; hazy on horizor
Scud and loose cumuli; cirro-cumulo-strati.
Scud and cumuli ; cumulo-strati; rain a i
Seud ; cumuli and cumulo-strati.
Seud oF cirro-strati.
Seud and cirro-strati.
Cirro-strati, cirro-cumuli, and cirri.
Loose scud and cumuli, cumulo-strati, and cir.-
Seud and cumuli; cirro-strati. a
Tdeis id.
Cumuli and cirro-stratous scud.
.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
i
Nf
4|
7
iG of the three strata of clouds, Sc. (scud), ©
815
794
29-728
730
717
707
700
698
Darity METEOROLOGICAL OBSERVATIONS, APRIL 10—17, 1846. 371
THERMOMETERS. WIND. Clouds,
eee a a Bos ds Species of Clouds and Meteorological Remarks.
Dry. | Wet. | Diff.) force in |From from af i
1h, |10™,
0 o 2 Ibs. | lbs, pt. pt. pt. pt. 0—10.
43-5 | 40-7} 2-8) 0-6| 0-2/ 18 || —:—:24|| 7-0 || Woolly cirri and cir.-cum.-str.; cir, haze; cir.-str. ;
37-7 | 37-0| 0-7|| 0-1} 0-1] 18 8-0 || Cirri, cir.-str.,and cir. haze; lunar halo. }- _[lun. cor. }-
35-0) 34-6] 0-4] 0:0) 0-0; 8 || —:18:—/! 10-0 || Cirro-strati and dense cirrous haze.
38-9| 37-9] 1:0) 0-0} 0-0 10-0 || Dense homogeneous cirro-stratus and haze.
46-7 | 44-0) 2-7 || 0-4} 0-9| 16 || 14:—:—J] 10.0 || Scud; mass of cirro-stratus.
47-0| 44.2) 2-8] 3-1} 1-3] 14 | 14:—:—|| 10-0 lick id.
49-0} 46-0} 3-0] 3-7} 1-3} 14 | 15:—:—]] 10.0 Id. ; id. ; rain?”
51-0} 47-8] 3-2} 1-5] 0-2} 12 || 14:—:—] 10.0 Id. ; id.
49-7 | 47-4| 2-3] 1-1) 0-2) 15 | 14:—:—] 10-0 |] Ia; id. ; rain?
46-0| 45.2| 0-8] 0-2) 0-1| 2|14:—:—|| 10.0 || Ia; id; rain!
45-4} 44.9/} 0-5]/ 0-3) 0-2) 4 10-0 Id. ; id. ; rain?2
58-2) 53-7| 4-5] 0-5] 0-4} 16 || 18:—:—|| 8-0 || Scud; cirro-cumulo strati; cirri.
49:0| 46-6] 2-4] 2-9) 0-4) 14 113:15:—/| 10-0 Patches of scud ; loose cir.-str. seud ; homogeneous cir.-str. and haze.
50-3| 48-2) 2-1] 1-2] 0-1| 14 |—:15:—-|| 10.0 || Cirro-stratous seud ; homogeneous cir.-str. and haze.
51-3 49-7| 2-1]) 0-5] 1-0} 16 |} —:15:—/|| 10-0 Id. ; id.
53-2| 50-6| 2-6|| 1-0] 0-7} 18 || 18:—:—J 9-8 |] Patches of scud; id.
58-0} 52-3] 5-7]|| 1-7) 1-6] 17 || 16:17:21] 7-0 || Thinscud moving rapidly; cum.; woolly & mottled cir. ©
58-6/ 53-1| 5-5 || 2-3) 0-8} 16 |} 18:—:—|| 5-0 |) Cumuli; sheets of cirro-strati. (2)
52-7} 50-8| 1-9 || 2-5] 0-2) 17 |} 18:—:—J]] 9.9 || Scud; cumuli and cirro-stratus; rain”?
50-0} 48-0} 2:0] 1-5] 0-8} 17 |} 18:—:— 9-5 || Seud and cirro-cumulo-strati; cirro-stratus.
50-0} 48-8} 1-2] 1-0] 1-1] 18 10-0 || Scud; dark; rain!; smart showers occasionally.
43-4] 42.8) 0-6] 1-3] 0-1] 18 1-0 || Light cirri over thesky. [gradually thicker since 18".
47-7| 46-0] 1-7] 0-1] 0-0| 24 10-0 || Dappled woolly cir.-str. and cir. haze, which has become
52-2) 49-5} 2-7] 0-0} 0-0} 16 || 16:—:—]| 10-0 || Cirro-stratous scud ; dense mass of cirro-stratus.
56-9} 52-2| 4-7] 0-0} 0-0} 14 || 16:—:—|| 9.5 || Scud; mass of cirro-stratus.
53-4) 50-4] 3:0] 1-1) 0-1) 4 ||—:16:—]| 7-5 || Cirro-cumulo-strati; cumuli and cirro-strati. 8
54-6| 50-4] 4-2] 0-1] 0-1) 7 || 16:—:—J| 10-0 || Scud; id.
56:2) 52-4| 3-8] 0-3) 0-1} 11 || —:16:—/|| 10.0 || Cirro-stratous seud ; dense mass of cirro-stratus.
51-6} 49-0| 2-6] 0-3) 0-1} 7 10-0 || Cirro-stratous scud and cirro-strati.
50:7 | 47-7| 3-0]| 0-0] 0-0) 7 9-8 || Scud; dark.
45-4| 45-1) 0-3] 1-2} 1-3} 3 | 4:—:—|| 10-0 || Loose misty scud; light drizzle.
44:5} 44-3) 0-2) 1-2) 0-7) 4 10-0 || Scotch mist ; objects invisible at 500 yards.
45:0) 44-6) 0-4] 1-3] 0-8} 4 10-0 Id. ; id. at 1 mile ; light drizzle.
45-6} 44-7] 0-9] 1-2) 0-8) 6 10-0 || Loose scud and Seotch mist.
45:8 | 45:4) 0-4] 0-8) 0-4) 5 10-0 Id.
45-1} 44-9} 0-2] 0-9) 0-3] 4 10-0 || Scotch mist; objects invisible at 1 mile; rain”?
45-2} 44-9| 0-3] 1-4] 0-3) 2 10-0 Id.
45:0) 44-5) 0-5 || 0-5/ 0-2] 6 10-0 Id. ; light drizzle.
44-8} 44-3) 0-5] 0-9) 0-2) 5 10-0 || Very dark.
44-7| 44-0| 0-7 | 0-3] 0-1} 4 1/10: 8:—/j] 10-0 || Two currents of scud.
46-2) 45-1} 1-1]} 0-1) 0-0} O |) 11:—:—!/| 10-0 || Scud.
49-3 | 47-1} 2-2}) 0-1) 0-1) 13 || 12:—:—J] 10-0 Id.
51-2) 48-6| 2-6] 0-1] 0-1} 16 || —:13:—)|] 10-0 || Cirro-stratous scud.
55-8 | 52:5| 3-3] 0-6! 0-1} 11 || —:14:— 9-9 Id.
53:3 | 50-5] 2-8) 0-3) 0-1] 13 |} 16:—:—)| 7-0 |] Scud; cirro-strati, cumuli, and cirrous haze. ©
52-2} 49-3} 2-9|| 0-4] 0-3] 18 |} 18:—:— 6-0
50:0} 47-8) 2-2] 0-4} 0-1} 14 || 18:—-:—J| 9-0 |] Scud and cirro-strati; cumuli and cirrous haze.
46-2] 45-2] 1-0] 0-7] 0-1) 14 1-0 || Patches of scud to N.; faint auroral light to N.
47-7) 46-6) 1-1] 1-0] 0-0] 17 | 16:—:—|| 10-0 || Scud; cirro-stratus.
47-8) 46-6 | 1-2|| 0-0} 0-0| 24 | 27:—:—|| 10-0 || Ia.; id. ; drops of rain; gloomy-looking.
48-5 | 47-6| 0-9] 0-1] 0-0 18:—:—/ 10-0 || Id.; id. ; light drizzle.
48-8| 47-7| 1-1] 0-0! 0-0] 16 10-0 || Homogeneous ; rain 1?
49-3 | 48-2] 1-1] 0-1] 0-0) 31 10-0 || Cirro-stratous scud ; mass of cirro-stratus; rain)?
47-6! 46-6} 1:0] 0-0! 0-0! Oo 10-0 || Thick scud; rain”; misty.
hdirection of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8,8. =16,W.= 24. The
-S. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. ‘
Ay 124. At 3% 30™, two or three faint peals of thunder heard; from 4 40™ till 5: 30™, much thunder was heard, chiefly from black
0 SE. and N., distance generally more than 3 miles; shower of rain about 4» 40™, and of hail about 64.
Ayl 142 5%, The wind blowing from NE by E. (5.)
DAILY METEOROLOGICAL OBSERVATIONS, APRIL 17—24, 1846.
THERMOMETERS.
Wet. |
41-7
43:0
44-1
43-8
force in |Ryom
pt.
31
30
DwWwnnwknnre we
bdo FP ODD WO OO
Clouds,
Sc. : C.-s.:Ci.,
moving
from
wnwmnre wok PD
|
ooontrw “TI
|
|
_—
10: 16:—
—:14:—
AONITTIAND
|
|
wmNoNwmNwr wh DW
ObheE BD NFwWNWWNNNWNaA NWOUAH BE
Or Or Or Or
|
|
; > ie
“Loose seud ; cir.-cum.-str., cir.-str., and woolly cirri
Species of Clouds and Meteorological Remarks.
Thick scud; rain”?; misty.
Scotch mist; object invisible at 1 mile.
Id. ; rain!
Misty scud ; rain”?
Scud; cirro-stratus.
iGhS id.
Id. ; id.
iGie id.
Tide: id.
de; id.
Td: id.
Id.; dark.
Scud and loose cumuli; cirro-stratus.
Seud.
Seud and cumuli; patches of woolly cirri.
Cumuli.
Id. on horizon.
Sheets of cirro-strati.
Cirro-strati on W. and NW. horizon.
Fog, objects invisible at 200 yards.
Id., id. half-a-mile.
Thin scud; woolly cirri, cumuli, and cumulo-strati.
Hid! loose cumuli, cirro-strati, and cirri.
Seud, cumuli, nimbi, cirro-strati, and woolly ci
Scud and cumuli; cirro-strati; showers occasion
Scud; thick woolly cirri, cir.-str.. and cirri; heavy shower of hail and na
Cir.-cum.-str. ; cirro-stratus, haze, and cum. ; thiek si
Scud and cirro-strati on horizon. [lying on Chey.
Seud ; cirro-strati and woolly cirri.
Id.; drops of rain.
Td; id.
Id.; shower? ; heavy shower of hail at 23.
Id.; cirro-strati; occasional showers.
Seud and cumuli.
Cirro-cumulo-strati ; cirro-strati. Li
Id. ; id.
Seud ; cirro-strati.
Id.; cirro-cumulo-strati.
ides id. ; cumulo-strati.
Id.; dense mass of cirro-stratus.
Id. ; cirro-stratus ; woolly cirri.
Id.; cirro-cumulo-strati; cirro-strati.
Thin scud; large cir.-cum.-str. ; cir.-str.; heavy shower of rain
E
‘
’
Scud ; cirro-stratus ; rain?—* hae at Bs
Ia. rs
Homogeneous scud and cirro-stratus; a tenden
Seud ; rain®? [
des | Bid:
Td.; rain®? .
Id.; drifting rain”?
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, 8. = 16, W. = 24
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
—
ee ee
“> & i
3
SN SH COO
AR A ce a en — —
SO coc
rash : oS te = D
7
MAG. AND MET. oss., 1846.
Daity METEOROLOGICAL OBSERVATIONS, APRIL 24—May 1, 1846.
373
THERMOMETERS. WIND.
Clouds,
Maximum Se.: C.-s: Ci, |] Sky A F
Dry. | Wet. | Die fee ky Ae a g clouded! Species of Clouds and Meteorological Remarks.
14, , 10™,
a Go lbs. | lbs. pt. pt. pt. pt. 0—10.
46:0| 45-3} 0-7 || 1-8) 0-7} 6 || 6:—:—|| 10-0 | Scud; drizzling rain”
45-4| 43-8] 1-6] 1-2} 0-5) 6 G2 S| 10-0 Id.; cumulous scud; woolly cirri; drizzling rain”?
45-3} 44-3] 1-0] 0-6) 0-1} 6 || 9: 8:—|| 98 | Thick scud; cirro-strati and cirro-cumulo-strati.
44.0} 43:0} 1-0] 0-2} 0-1} 5 10-0 || Scud and cirro-stratus.
43-0| 42-8} 0-2|| 0-0} 0-0 10-0 || Homogeneous mass of clouds ; misty.
45-0} 44-2} 0-8] 0-0} 0-0) 4 4:—:—| 10-0 lich 5 id.
48-7| 46-3} 2-4] 0-0} 0:0} 31 |) 8:11:—|| 8-0 || Seud; cirro-cumulo-strati; cumulo-strati. [lately.
51:0! 47-0] 4-0]) 0-1] O-1| 5 5: 8:— 9-8 || Loose scud ; loose cum. ; cir.-cum.-str. ; drops of rain
51:0} 47-6) 3-4|| 0-5] 0-3) 3 || 4: 8:—/j| 9.5 |] Scud and loose cumuli ; id.
50-1] 46-0} 4-1] 0-6] 0-1) 2 || 6: 8:—|] 7-0 || Seud; loose cumuli. ©
49-4| 45-8] 3-6] 0-2} 0-2} 2 2:—:— 9-0 || Scud and cirro-strati.
45-8} 43-3) 2-5]| 0-7! 0-2} 2 || 2:—:—| 10-0 Td.
44.2) 43-3] 0-9] 0-7| 0-7) 1 10-0 liol, § dark ; rain”?
40:5 37.4| 3-1 a7 2.7 1 Fd ca 7.0 { eo ateees a showers of rain, hail, and
35-6| 33-3} 2-3 || 4-5) 0-1) 28 ||—: O:—J]} 7-5 || Cirro-cumulo-strati; cumuli on horizon.
39-6| 35-7| 3-9 |] 1-8] 0-9} 29 ||—: 0:—|]| 4-0 lide; id. ©
42-5| 36-8| 5-7 || 1-5] 0-7} 29 || 0: O:—J]| 9-5 |] Seud and cirro-eumulo-strati ; cirro-strati.
45:-0| 38-4/] 6-6|| 1-2) 0-4} 28 |}31:31:— || 9-8 dey id.
45-3} 39-3| 6-0]| 0-7} 0-3| 27 ||: 29:—| 10-0 || Cirro-stratous seud.
46:6| 40-2} 6-4 |) 0-3) 0-1] 24 || 29: 29:—J| 10-0 || Thick seud and cirro-strati.
45-6| 39-8| 5-81] 0-0] 0-0] 22 || 29:29 :— 9-8 fds: cirro-cumulo-strati.
42-:7| 39-4| 3-3] 0-1) 0-0} 23 ||—:28:-—|| 9-5 || Wavy cir.-str. and cir.-cum. ; clouds tinged red to W.
40-0| 38-4] 1-6 || 0-0] 0-0} 20 8-0 || Scud and cirro-strati.
36-0} 35-1} 0-9 |) 0-0} 0-0 0: 0:— || 9-5 |) Thick cir.-str. and scud; a slight shower of rain and
40-8} 38-5} 2-3)| 0-0} 0-0; O ||28:—:—J]|| 9-5 || Cirro-stratous scud. [hail lately.
46-2) 40-2) 6-0|) 0-1) 0-0) O || 30:—:— 9-8 Nae; cumuli on N. and E. horizon.
45-4] 39-3 6-1] 0-2) 0-1/ 30 | 30:30:—j] 9-6 || Scud and cirro-cumulo-strati; cum.; rain falling to S.
46-3| 39-0/ 7-3|| 1-1} 0-3) 30 || 30:30: — 9-5 Id. ; id.; cumulo-strati.
46-5] 39-4| 7-1|| 0-8} 0-9) O || 30:—:— J 6-0 || Scud and cum. ; occasionally afew drops of rain and hail.
46-3| 40-3} 6-0|| 0-8] 0-2] 0 0-7 || Cumulo-strati and cirro-strati round horizon. ©
42.2) 37-7| 4-5] 0-3) 0-1) 4 |}29:29:— | O-8 || Scud and cirro-cumulo-strati. e
33-2} 32-2| 1-0] 0-0} 0-0) 20 0:2 || Cirro-strati on N. horizon. »))
33-4| 32-7| 0-7|| 0-0} 0-0) 18 0:7 || Sheets of woolly cirri and cirro-cumulo-strati. ©
42.7| 38-7| 4-0]) 0-1} 0-1] 22 || —:28:—j| 8-0 || Cirro-cumulo-strati.
48-0| 42-2] 5-8] 0-5} 0-2} 23 || 29:—:—|| 6-0 || Scud and loose cumuli; cirro-strati. (2)
51-2} 46-2} 5-0]) 1-2) 0-2) 28 || —:28:—)}]} 9-8 || Cirro-stratous scud.
52-7| 46-6] 6-1) 1-3) 1-6) 23 || 24: —:— 7:0 || Scud and loose cumuli; cirro-strati and woolly cirri.
52-0} 46-6] 5-4] 2-3) 1-2) 24 | 24:—:—j 6-0 || Cumuli.
52-5| 45-8} 6-7 || 2-6) 1-2] 25 2-0 || Loose cumuli; cumulo-strati and cirro-strati. ©
44.7} 42-7) 2-0]) 1-8] 1-2) 0 9-5 || Dense mass of thick scud.
40-2} 39-5] 0-7] 0-8; 0-1] 2 10-0 || Scud; rain! since last observation.
38-5] 37-1} 1-4]| 0-3) 0-0} 2 || —:28:—J|| 9-8 || Cirro-stratous scud and cirro-cumulo-strati.
42-4} 40-0} 2-4|| 0-0} 0-0) 17 10-0 || Dense cirro-stratus ; patches of scud to E.
46:0} 41-8! 4-2|| 0-0} 0-0} 17 10-0 Td.
50-3} 45-0) 5-3 || 0-0} 0-0} 18 || —:20:—| 10-0 Id.
49-2) 44-5] 4-7 || 0-1] 0-0} 18 || —:19:—¥| 10-0 Id.
50:4/| 47-0} 3-4|| 0-1} 0-1} 20 || 23:—:—} 10-0 || Seud and dense cirro-stratus ; light rain lately.
48-3| 46-0} 2-3} 0-0} 0-0 DP 8 HT TIO) Ile slight drizzle.
47-0| 44-3| 2-7)! 0-2| 0-0) 21 || 20:—:—} 10-0 || Cirro-stratous scud; smoky scud to N.; cirro-strati.
45-4| 43-4| 2-0] 0-0] 0-0} 19 10-0 Id.
44-4} 43-4} 1-0|) 0-0] 0-0 20 :—:—|| 10-0 || Thick scud and cirro-stratus.
48-9} 46-0} 2-9) 0-0) 0-0} 17 || 22 :—:—¥j 10-0 Td.
53-2} 49-0 | 4-2] 0-1} 0-0] 18 |} 20: —:—| 10-0 Id.
56-0} 51-2! 4-8]| 0-7] 0-5| 19 || 20:—:— | 10-0 || Seud and cirro-stratus ; atmospheric haze.
he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, EK. = 8, 8. =16, W.= 24. The
\pril 294 8h, A dense mass of thick scud has risen from N. and NE., and is now nearly over the whole sky; there are different shades
olour ; the lowest is whitish smoky scud, and is detached from the rest ; there is a bluish cloud, and a very black one; they are moving
various directions, but principally from N.
5B
344 DaIty METEOROLOGICAL OBSERVATIONS, May 1—7, 1846.
THERMOMETERS. WIND.
eee Se eRe: Clouds,
Maximum fe C.-s. :Ci.,|| Sky
Dr Wet. | Dig.|| forcein [promi MOV2e clouded,
a ; ; Jn 10m from
Species of Clouds and Meteorological Remark:
—||——————_—_—_|—_____
=
S
54-2 | 50-8
55-7
53-2
52-0
Seud and cirro-stratus ; atmospheric haze.
Scud ; dense cir.-str. and cir. haze ; atmospherie
Thin seud ; id: 3 id. —
ld.S id. ; id.
Nair: ide id ¥
Seud ; cirro-strati.
des id. ; cirro-cumuli.
ids: id.
Scud and loose cumuli; cirro-strati. @ [of en
Td. ; woolly cirri; cum.-str. ;
Masses of seud; cirro-cumulo-strati and cirro-st
Dense mass of cirro-stratus ; cirro-cumulo-str. al
Cir.-str. over the whole sky ; a few patches of:
As before.
Seud and cumuli.
weonrtdaar
- (ol oan)
Nearly homogeneous ; scud on E. horizon.
Scud ; dense cirrous mass: rain?”?
Id.; dense mass of cirro-stratus ; rain”
Dense cirro-stratus and send ; rain”?
Masses of seud ; cirro-strati; drops of rain.
Masses of wavy cirro-strati; loose scud ; rain!
Seud ; dense cirro-stratus ; rain? ; rain?—* 15™ ag
IIGES id. ; id.
Thick scud and cirro-stratus.
Neiie a=)
Seud ; mass of cirro-stratus.
IGE id.
Scud and loose cumuli; woolly cirri.
Thick scud.
Cumuli; woolly cirri.
Seud and cumuli; cumulo-strati and haze on horiz
Rain2—4; 55 45™, two peals of thunder, the interval for o le
Scud ; dense cir.-str. ; occasional shower2-+ ™
Rain! -*
Homogeneous ; rain”?
Cirro-stratous seud.
Thick seud and loose cumuli.
Thick scud and cirro-strati.
Id.
Cirro-cumulo-strati ; cumuli ; woolly cirri.
Scud, loose cumuli, and cirro-cumulo-strati.
Id.; cirro-strati ; id.
Scud and cirro-strati ; drops of rain.
oo Se DOR Re Ree OF OC OR KF NOK eK POF KF OF ES
NO OCONWUNNWOWa NOUWUOKHOWWSO A ST Oo bo or”
SF OF KF WW BWR Be Bee
CO Ot me eR OO Or Gr Cr &r
Cirro-strati and linear cirri on horizon.
Seud and loose cnmuli ; cumulo-strati on horizon. |
: : . pl! Scud and cumuli; woolly cirri.
47-8 | 8. : . IE : : Id.
46-6 | 6. 2. : Be : Seud, loose eumuli, and cirro-strati.
47-0} 6- . . pee . Id.
48-1| 5- : . =: : Scud, loose cum., cir.-cum.-str., woolly cir., and ¢
46-2] 3- : : nO4e: : Masses of cir-str. ; woolly cir. and cir. haze overt
45-6 | 2. . “Ta : Thick scud and cirro-stratus.
46-9] 43-9) 3- : : : eee . Seud ; cirro-strati.
50-4} 45-3] 5- . : : =— . Id. ; id.
53:0] 46-9} 6: . : : — : Cumuli.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, B. = 8, S. = 16, W.= 24 1
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. ;
May 74. Cuckoo heard.
=
a x ow apmwow
iw iy
BNON SH SHaBNONS
1
oo
LS,
one
~J
J
wT
OAD
Se
O
0
7
>
i
pO
40
|2
|
"|
955
939
| 29.885
876
6 |
| |8
‘10
8
20
p
THERMOMETERS,
WIND.
Dry. | Wet. | Diff.
56-0
57-9
59-2
57-6
52-1
47-0
40-4
47-7
57:2
59-4
POW WIE ww
wWAhOHe Won LEO
103,
os
do
Maximum
force in |from
Os
Clouds,
Se. :C.-s.: Ci.,
moving
24:
Parl
26:
220
from
: 20:
ee
Sky
clouded.
SH
Qu
OOo
Id.; linear cirri.
Masses of cirro-strati; cirrous haze ; solar halo.
Sheets of cirri and cir. haze; traces of a lunar halo. )) |
Cirri and haze round horizon.
Seud, cirro-strati, and cirri round horizon.
Cumuli; a few tufts of cirri.
Id.; woolly cirri.
Masses of cum. ; woolly cirri and cir. haze; solar halo. ©
Id.; woolly and mottled cirri; very hazy on hor.©
Thick scud and cirro-stratus.
Id.
Scud ; cir.-str. and cir. haze; portion ofa lunar halo. }-
Loose cumuli; showers of rain and hail about 52.
OOOO
Thick woolly cirri and cirro-strati.
Thick woolly cirri; part of a halo.
Woolly cirri and cirro-strati; patches of seud.
Masses of cumuli; woolly cirri and cirro-strati.
liclse cirrous haze and cirro-stratus. ©
Cum. ; cir.-str. and cir. haze ; hazy and electric-looking.
Seud and electric-looking cum. ; cirro-stratus and haze.
Thick dark seud ; cir.-str. and cir. haze; slight showers
Thick scud and cirro-stratus. (occasionally.
Scud and cirro-strati to S.; cirri and haze to N. ©
Scud and loose cumuli; cirri and cirrous haze. ‘S)
Id. ; id.
lds; id. (0)
Id. ©
Id. 0)
Id. ; cirri, 0)
Woolly cirri.
Id. ; cirro-strati. »))
@
S)
8
Thick woolly cirri and cirrous haze ; patches of scud.Q
Thick woolly cirri ; cumulo-strati to NW. S)
Seud and loose cumuli; cirri and cirrous haze. |
Masses of cum. ; woolly cirri and cir. haze ; solar haloO
Glare id. e
Thin scud and cumuli; woolly cirri.
Scud and cumuli; cirro-stratus and cirrous haze.
Woolly cirri, cirro-strati, and cirrous haze.
Scud ; cirro-stratus and cirrous haze. —
Cirro-stratous scud.
Scud and loose cumuli.
Id. ; woolly cirri. (S)
Nels id.
Masses of scud and cum. ; thin cir. and cir. haze ; halo.©
Id. ; thin woolly cirri.
A few small patches of scud and cum. ; woolly cirri. ©
Cirrous haze and cirri on horizon. ©
Cirri on horizon.
Homogeneous ; misty.
Cirro-stratous scud ; misty. ©
he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8,8S.=16, W.= 24. The
otions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
pls 124 20%, Very hazy round horizon ; small portion of a halo.
376 DaIty METEOROLOGICAL OBSERVATIONS, May 14—21, 1846.
Time. || at 32°. | Dry. | Wet. | Diff.
6 672 | 59-0) 54.4 4-6
8 722 || 53-3| 50-4 |12-9
THERMOMETERS.
WIND.
Maximum
force in |Pyom
1h, |10™,
lbs lbs.
0-1} 0-1
1:3| 0-8
0-9| 0-3
1-1] 0-2
1-1} 0-8
0-8} 0-4
0-4] 0-4
0-4] 0-0
0-1] 0-0
0-2} 0-2
0-8} 0-8
1-5} 1-5
Hes) Tet
1-3] 1-0
1-5] 0-9
0-5 | 0-3
1-1] 0-5
0-8} 0-3
0-3 | 0-0
0-3} 0-1
2:0] 2-0
1-8-7
1-1] 0-2
0-8] 0-7
0-7 | 0-4
0-6} 0-2
0-2) 0-1
0-2} 0-0
0-8 | 0-4
1-8] 1-0
1-9] 1-6
2.2) 2-4
3-1] 1-9
1-9| 1-6
1-9] 0-1
0-5! 1-0
2:5] 0-2
2-3} 3-0
2-8] 2-2
2-9} 1:3
1-2} 0-3
0-7 | 0:5
0-8} 0-1
0-2} 0-2
0-5} 0-1
0-2} 0-1
0-1} 0-0
0-2) 0-1
0-2} 0-1
1:0] 0-5
0-5] 0-2
0-3 | 0-1
0-3 | 0-2
at |
Clouds,
Sc.: C.-s.: Ci.,
moving
from
it ee a Species of Clouds and Meteorological Remarks
|
0—10. ||
0-4 | Masses of cumuli to S. and SE.
0-8 | Small detached masses of cumuli.
5-0 | Loose cumuli; hazy.
8-5 | Td: id.
8-0 |} ides id.
2-5 | Cirri and cirrous haze on horizon.
4-0 | Cirri, cirro-strati, and cirrous haze.
2-5 | Cir.-cum.-str., cir.-str., woolly cirri, and cirrous hi
2-5 | Woolly cirri and cirro-strati; hazy.
1-0 | Masses of loose cumuli; sheets of woolly cirri,
0-5 | Small patches of cumuli.
6-0 | Cumuli.
9-0 | Seud; cumuli and cirro-strati.
6-5 || Cumuli; streaks of cirri.
3-0 / Loose cumuli, woolly cirri, cirrous haze, and she
10:0 || Seud; rain? commenced at 94 50". [cir
10-0 | Misty seud; drizzling rain.
10-0 | Thick cirro-stratous seud.
7:0 || Cirro-cumulo-strati; cirro-strati; patches of seud
8-5 | Seud ; cirro-strati. [drops of 1
8-5 | Masses of scud and loose cumuli ; cirro-strati; a
9-8 | Seud, loose eumuli, and cirro-strati. }
10-0 | Scud and cirro-strati; showers since 12,
10-0 Id.
10-0 | Scud and cirro-stratus.
10-0 | Seud; rain
10-0 | Scud and cirro-strati; drops of rain.
10-0 | Cirro-stratous seud and cirro-strati.
10-0 | Seud ; cirro-strati.
8-0 | Scud and loose cum. ; sheets of cir.-str. and wool. ¢i
8-0 | Cumuli; cirri and cirro-strati, moving very slowl
9-5 | Seud, cumuli, and cirro-strati.
6-0 | Id, id. and woolly cirri.
2-0 | Cumuli; cirro-strati to S.
9-0 | Cirri, cirrous haze, and cirro-strati.
10-0 | Cirro-strati and cirrous haze.
3-0 | Cirro-stratous seud ; cirro-strati ; hazy on horizoi
4-5 | Scud and cirro-strati; hazy on horizon.
7-5 | Seud and cumuli.
9-0 Id. [in ragged mi
9-0 | Scud, nimbi, and cum.-str.; some of the seud hangi
9-8 | Scud and cum. ; cir.-str.; a peal of thunder heard to E
9-8 | Scud and cir.-str. [very heavy shower of hail about
9-0 | Cirro-strati, cirrous haze, and cirri.
4-0 | Cirro-strati aud cirri.
5-5 | Cirro-cumulo-strati and cirro-strati; haze on horizon,
6-0 | Id. ; haze on horizon. ; |
2-0 | Masses of scud and loose cumuli in two currents,
5-0 j Cumuli ; two or three peals of thunder to SE. ai
9-0 } Thunder-storm.
3-5 | Cir.-cum.-str., cum., and haze; thunder to 8.
1-0 | Cumuli and cirro-strati. Oo [i
3-0 Cirro-strati and cirri to W.; cumuli to EH.
May 15° 0, Observation made at 0 6™,
the last peal of thunder was heard about 1h 50™,
164 8h, Coloured parhelia and portion of a solar halo. 17418, Observation made at 18h7™,
May 204 2h, Between 12 45™ and 2h 0”, three peals of thunder heard towards the SE. ; slight shower.
May 214 2h, Thunder-storm since about 14 20", chiefly to northwards ; the intervals varying from 28 to 88, generally about 55; at 1h 37™, a yery
flash to NNE., consisting of three simultaneous streaks, followed immediately by a single one, from the horizon to 20° altitude, the interval being
1h 45™, it commenced raining, the drops being very large; at 1) 50™, it commenced to hail very violently, some of the hailstones being about 0°
diameter, afterwards becoming rain. The clouds are chiefly thick black scud and cumulo-stratus, moving from various directions, but principally fro )
THERMOMETERS.
j|| at 32°. || Dry. | Wet. | Diff.
|
in. ° ° °
29-750 || 46-2] 45-3| 9-9
29-810 || 49-2| 47.8| 1-4
$32 || 53-7| 51-3| 2-4
842 || 57-6| 52-2] 5.4
862 || 58-6| 53-5] 5-1
860 || 57-0| 52-4] 4.6
843 || 58-8| 53-2] 5-6
$31 || 53-6| 50-1] 3-5
857 || 52-0] 50-0| 2-0
871 || 51-5| 50-2} 1.3
29-920 || 52-2| 50.0| 2.2
29-970 || 53-2| 51-2} 2-0
130-015 || 49.3| 48-6] 0.7
014 || 52-3} 50-7| 1-6
016 || 56-7| 53-2] 3-5
| 30-008 56-9| 53-0| 3-9
29-991 || 58-7| 54.4 |t4.3
998 || 56-0} 52.4 he
998 || 51-3} 49-7] 1-6
29-988 || 56-4| 49.0] 7-4
29-878 || 54.4| 52.0] 2.4
| 866 || 57-7| 53-8| 3-9
2 867 || 58-0| 53-7| 4.3
) 828 || 60-8| 55.3] 5-5
B® 811 || 60-5| 54.8] 5.7
b= 801 || 62-0| 55-2] 6-8
} 778 || 59-3 | 53-5 |t5-8
B 801 | 56-3) 51-3 |15-0
} 811 || 50-6] 45-8] 4-8
3 29-829 || 48-8| 46-0) 2-8
20, «836 || 52-3/ 46-2/ 6-1
2) 838 || 54-6| 46.9) 7-7
| 838 57-7 | 48-8| 8-9
} | 837 || 59-1| 50-0} 9-1
t} 840 | 60-7} 51.4) 9.3
G 835 || 55-8| 48-4 |t7-4
) «845 || 52-4] 47-0] 5-4
10/831 || 49-9} 44.8] 5-1
18|29-793 || 49-9| 46-3| 3-6
} 795 || 51-5} 46-8] 4.7
773 || 53-7| 47-3| 6-4
769 | 54-1] 48.2) 5-9
b} «765 || 53-6| 49-8] 3-8
4) 763 || 56-4| 48.0] 8.4
6) 801 || 52-3| 46-4| 5.9
8) 822 | 51-0| 46-8] 4.2,
. 47-0) 45-0| 2.0
29 44.9| 42.2| 2-7
| / 49-4} 43-5| 5-9 |
22 54-4| 46-6| 7-8
0/29. 55-3| 47-2] 8-1
57-7| 48.4| 9-3 |
58-9| 49.2| 9.7
60-1] 50-7 |t9-4
WIND.
Maximum
force in
a. | Lom
1-3
bo 00
i)
to
ae Se SS BOIS SSS SS)
Beo eRe DDK wee
eC ON eo)
IOW ONKHDWDANOW wm
1-9
CcOoOrOrkH oo SS) FS (SS i aS
KB DBTORF OF DM ODWMOWOe bb
- jag. AND MET. oss. 1846.
From
Clouds,
Se. : C.-s.:Ci.,
moving
from
Dairy METEOROLOGICAL OBSERVATIONS, MAy 21—28, 1846.
Sky
clouded.
377
Species of Clouds and Meteorological Remarks.
Cirro-strati and cirri.
Misty scud ; woolly cirri and cirrous haze.
Seud ; cirro-stratus. [cirro-stratus.
Masses of scud and loose cum.; dense homogeneous
Patches of scud; dense homogeneous cirro-stratus.
Id. ; id.
Seud ; cirro-cumulo-strati.
Thick seud.
Id.
Id.
Dense mass of cirro-stratus.
Cirro-stratous scud ; cirro-stratus ; drizzling rain.
Misty loose scud ; slight drizzle since 20%.
Id.
Seud ; cirro-cumulo-strati.
Cirro-cumulo-strati and cirro-strati.
Seud and cumuli.
Cirro-stratous scud and cirro-cumulo-strati.
Cirro-strati.
Masses of cumuli; cirro-cumuli and linear cirri.
OO OOO
Seud ; woolly cirri; cirro-strati.
Td id. 3 id.
Id.; cirro-strati and cirri.
Id.; cirro-cumuli and cirro-strati.
Id.; cirro-cumuli, mottled cirri, and cirro-strati.
IGE S id.
?
2
©
Id.; sheets of mottled cirro-strati.
Id. id.
Id. cirro-strati.
Woolly and mottled cir. and cir.-str. ; patches of scud.
Scud and loose cumuli; cirro-strati.
Loose cumuli.
Id.
Id.
Id.
Id.
Scud ; woolly and curled cirri.
Id.; cirro-strati.
Scud; cirro-strati above.
Icke id.
Id.; cirro-strati and cirro-cumuli.
Thick scud ; cumuli on horizon to 8. and N. ; cir.-str.
Thick scud; cum, on horizon to S. and N.; cir.-str.; slight shower.
Id. ; id. to E. and N. ; rain”
Thick scud and loose cumuli. to E. about 7h:
Scud and cir.-str. ; drops of rain occasionally ; a portion of a rainbow
OO
(WO OKO)
Woolly cirri radiating from SSE. ; hazy on horizon.
Loose cumuli.
Cumuli.
Id.
Td.
Id.; woolly cirri.
Scud, loose cumuli, and cirro-strati.
©
©
©
10)
10)
‘S)
thdirection of the wind is indicated by the number of the point of the compass, reckoning N. = 0, EF. = 8,S.=16, W.= 24. The
iG of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Gott. BaRo-
Mean METER
Time. || at 32°.
dy bs in.
28 8 || 29-995
10 || 30-014
18 || 30-066
20 064
22 057
29 0 047
2 037
4 012
6 007
8 009
10 015
18 || 29-979
20 985
22 978
30-0 982
2 987
4 969
6 967
8 977
10 | 29-984
231) 30-002
3118 || 29-961
20 967
22 958
1 0 949
2 931
4 922
6 913
8 924
10 949
18 || 29-969
20 972
22 972
7) (0) 968
2 953
4 953
6 950
8 955
10 || 29-969
18 || 30-010
20 010
22 || 30-000
3 0 || 29-987
2 975
4 953
6 942
8 956
10 961
18 || 29-960
20 960
22 953
4 0 933
2 913
4 899
DAILY METEOROLOGICAL OBSERVATIONS, May 28—JunE 4, 1846.
THERMOMETERS.
Dry.
56-5
51:3
47-0
54:8
53:0
61-4
(ac?)
76:3
78-6
81-7
79:7
Gilby
63-2
56-4
63-0
72-7
79-8
81-6
82-0
Wet. | Diff.
49-3 |17-2
46-5| 4.8
45-2} 1:8
WIND.
Maximum
force in |Pyom
1.
10™,
pt.
Clouds,
Se.: C.-
s.: Ci.,
moving
NG:
hale
pt.
a)
ep
20:
ilies
20:
from
pt.
28
724:
pt
Sky
clouded.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, S.=16, W.=%4
.-S. (cirro-stratus), and Ci. coer are indicated in a similar manner.
motions of the three strata of clouds, Se. (scud), C
June 34. The dry thermometer was several times observed as high as 82°4
| Cumuli and cumulo-strati. ion
| Cumulo-strati and sheets of cirro-strati ; ha:
| Cirro-strati, cirro-cumuli, and masses of cumuli
|| Cirro-strati and cirro-cumuli to N.
|| Clear; haze on horizon.
Species of Clouds and Meteorological Rem
Cirro-cumulo-strati and cirro-strati.
Cirro-cumuli and cirro-strati.
Thick woolly cirri rad. from SSE. and NNW,
Id. ()
Woolly and tufted cirri; masses of cumuli; a t
Cumuli ; cirri. © [to a halo in th
Cirro-cumulo-strati.
Large cirro-cumulo-strati and loose cumuli.
Cirro-cumulo-strati.
Id.
Cirro-strati.
Cirro-strati, woolly cirri, and cirrous haze.
Cirro-cumulo-strati ; cirro-strati.
Scud and cumuli.
Id.
Id.
ats haze on horizon.
lich id. ; woolly cirri, —
Scud and masses of cirro-stratus ; woolly cirri.
Sheets of cirro-strati and cirri.
Detached masses of cumuli ; streaks of cirri.
Patches of cir. and cir.-str. ; hazy on hor., like:
Cirriand haze near horizon.© _ [ing off; heay
ils patches of cumuli t
Fane id.
ids: patch of cumulus to |
A few small patches of cumulus; milky haze.
Cum. and cum.-str. to W.; cum. toS. ; hazy roun
Cirri and cirrous haze round horizon.
Id.
Misty on horizon.
Hazy.
Small patches of cum. in a brownish haze aboutt
Masses of cum.-str. and small patches of cum. ; hi
As before; a smart shower at 34h for lum; 2 or 3 peals of thunder sinced)
GES id.
Ids; id.
Id. ; cumuli and haze on horizon.
Canali and cumulo-strati; hazy on hore ;
Id., having an interna.
Tae 2 cirro-strati; haze
Cumuli, cumulo-strati, cirri, and cirrous haze,
Cirro-strati, cirri, and cirrous haze.
| Haze on horizon, with a few patches of cirr
| Haze near horizon. ©
Cirro-cumulo-strati, cirro-strati, and cirro
Cumuli and cum.-str. ; much haze in the atm
| As before; distant thunder to E., first heard
| Cumuli and cumulo-strati; atmosphere ve
~I
co
a
. 63-6
DAILY METEOROLOGICAL OBSERVATIONS, JUNE 4—11, 1846. 379
THERMOMETERS.
Dry.
78-4 |t
73-8
62-8
52-8
73:7
78:2
80-6
81-0
78:3
72-8
67-4
55-0
62-0
74-3
Wet.
Diff.
76-2
80-6
77-6
73:8
70-0
63-7
69-2
56-9
60-0
57-8
62-0
64-0
68-1
64-2
59-3
58-5
56-4
60-3
65-9
66-4
66-7
66:6
68-0
65-2
60-0
59-0
62-1
66-3
66-8
70-5
65-4
64:0
60-7
59:3
55:1
58:8
61:5
59-0
58-2
57-8
51-1
53-9
58-4
65-7
66-0
55-7
54-8
$4.0
[4-9
3-1
10-0
11-2
WIND.
Maximum
force in
TEES ff aloes
2:6| 1-1
1-7| 1-0
Clouds,
Se. : C.-s.:Ci.,
moving
from
pt. pt. pt.
18 ;—:—
Si 99
eh aie a Species of Clouds and Meteorological Remarks.
| 0-10.
| 2-5 || Cumuli and cumulo-strati; atmosphere very hazy. ©
' 0-5 || Cirro-strati and haze round horizon. (0)
0-7 || Woolly cirri, cirro-strati, and cirrous haze. y
1-0 || Sheets of woolly and mottled cirri. ©
3-5 || Woolly and linear cirri ; haze on horizon. oO
7-0 Id. ©
7-0 liye cirro-strati and haze on hor.©
7-5 || Thick woolly cirri; patches of cum. on E. and SE. hor.
5:0 || Cumuli; woolly cirri and cirro-strati. i)
7-0 || Asbefore; Cheviotobscured bythe haze; solarhalo at 54. ©
9-0 || Thick woolly cirri; cum. to K.; very hazy on horizon. ©
10-0 || Cirro-stratous seud ; mass of cirro-stratus. +
2-0 || Thin cirro-cumuli and cirri over the sky. ©
2-5 || Cirro-cumuli, cirro-strati, and linear cirri. (o)
4-5 || Woolly cirri; cirro-strati and cirrous haze.
5-0 Id. ; cumulo-strati; very hazy on horizon. ©
8-5 || Wool. & mot. cir.; cum. & cum.-str. on hor.; very hazy. ©
8-5 || Woolly cirri, becoming thicker ; cumuli. re)
7-0 Cir.-cum.-str., cir.-str., and cir. ; cum, and haze on hor. ; halo at 55,©
4-0 || Cir.-str., cir.-cum., woolly and diffuse cir.; hazy on hor.©
9-0 || As before. 2
3-0 || Cum.; patches of cirro-strati; much atmospheric haze. ©
10-0 || Thick seud.
10-0 Id.
10-0 || Scud to N.; dense mass of cirre-stratus.
10-0 || Cirro-stratous scud.
10-0 || Nearly homogeneous.
10-0 || Dense scud and cirro-stratus.
10-0 || Dense scud.
10-0 Id.; slight drizzle.
9-5 || Cir.-str. seud and cir.-cum.-str. ; misty on horizon.
9-8 || Cirro-cumulo-strati and cirro-stratous scud.
9.8 || Patches of loose scud ; cirro-stratous scud.
6-5 || Cir.-cum.-str. and loose cum.; cirro-strati on N. hor. ©
9-0 Id. and cirro-stratus ; cumulo-strati on hor.
9-5 || Seud and loose cumuli; cirro-strati ; cumulo-strati.
10-0 || Thick scud and cumuli; distant thunder to E.
8-5 Cum. & cir.-cum,-str.; cum.-str, & haze round hor,; electric-like to E.
6:0 || Cir.-cum. and cir.-str. ; ragged cum. and haze on hor.©
8-5 || Cirro-stratous scud and cirro-cumulo-strati ; cir.-str.
10-0 || Dense uniform mass of clouds.
10-0 || Scud; densely overcast.
10-0 Id.; cirro-cumulo-strati and cirro-strati.
10:0 || Loose scud; cum. on N. hor.; dense cir.-str.; solar halo. @
10-0 || Cir.-cum.; cir.-str.; cum. to N.and E.; solar halo. ©
10-0 || Masses of scud & loosecum. ; homogeneous cir. haze &
10-0 || Scud; cir.-str. seud and cir.-str.; drops of rain. [cir.-str.
10-0 || Scud, moving rapidly ; rain? since last observation.
9-8 || Thick smoky scud; cirro-strati above.
7-0 || Seud; woolly cirri. r=)
6:5 Id. ; id. ; cirro-strati. =)
6:0 lols id. ; id. (5)
8:0 || Loose edged cum.; wool., mot., & diffusecir. & cir. haze.
8-5 || Cirro-cumulo-strati and cumuli; cirro-strati. @
Ts)
le 54 Qh,
direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E.= 8,S.= 16, W.= 24. The
ioths of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Very hazy on horizon ; broken portion of a halo.
+ e944h, Very thick electric-looking scud and cumuli, some of the scud hanging in detached patches ; uniform to H., distant thunder
“loccasionally since 3%.
i
—
380 DatLy METEOROLOGICAL OBSERVATIONS, JUNE 11—18, 1846.
THERMOMETERS.
WIND.
Time. |) at 32°. || Dry. | Wet. | Diff.
11 4 || 29-867 || 63-5) 56-0| 7-5
6 881 || 62-7) 56-2) 6-5
8 893 || 59-2) 56-7) 2-5
10 905 || 57-6| 54:9) 2-7
18 || 29-939 || 53.2] 52-2| 1-0
20 || 944 || 61-1] 57-9] 3-2
22 | 932 || 64-7| 58-7| 6-0
12 0 || 925 |) 66-7| 58-2| 8-5
2 || 902 || 68.4| 58-2|10-2
4 || 886 | 70-3] 59-0 |11-3
6 || 877 || 67-7] 59-7] 8-0
8 || 878 || 62-4] 57-2|+5-2
10 | 890 || 57-0] 54-2 12-8
18 || 29-876 || 67-0| 55-6} 1-4
20 897 || 62-0) 58-4) 3-6
22 898 || 66-1] 59-8} 6:3
130 897 || 69-0} 60-6] 8-4
2 882 || 73-2| 60-9 |12-3
4 888 || 71-8) 61-7 |10-1
6 889 || 68-6] 59-8} 8-8
8 884 || 67-2) 59-8] 7-4
10 902 || 62-8] 58-0} 4-8
231) 29-904 || 72-7| 64-5| 8-2
14.18 || 29-944 || 55-3] 53-7 |T1-6
20 949 || 60-7} 56-3 |14-4
22 971 || 66-3| 59-4} 6-9
15 0 988 || 67-7| 59-7} 8-0
2 988 || 71-6] 61-6 |10-0
4 979 || 73-7| 61-8 |11-9
6 || 973 || 70-4] 62-0 |t8-4
8 || 29-998 || 66-9} 59-7) 7-2
10 || 30-026 || 61-7] 56-0 |15-7
18 || 30-077 || 53-7| 50-3 |+3.4
20 || 091 |) 60-8) 54-3 |16-5
22 || 092 || 69-8) 60-3] 9-5
16 0 || 093 | 74-4| 62.0|12-4
2 || 088 | 78.4| 64-0 |14-4
4 || 087 | 74-2| 64-1|10-1
6 || 092 | 72-2) 63-9 |+8.3
8 || 100 || 69.2| 62-2] 7-0
10 | 115 || 61-7| 59-0 |12-7
18 | 30-114 || 53-9| 52-3 1-6
20 | 113 || 61-4} 58-1|{3-3
22 || 104 | 72-7) 64-3] 8.4
17 0 094 | 77-9] 64.2|13-7
2 073 || 79-8) 63-5 |16-3
4 | 045 | 81-8] 63-6 |18-2
6 | 018 || 79.2) 66-8 12-4
8 || 029 | 74.4] 65-4] 9.0
10 | 045 |) 66-0| 62-0] 4-0
18 | 30-008 || 57-7| 56-1 |T1-6
20 | 30-007 || 64-3] 61-3 |13-0
22 | 30-000 || 73-2| 64-7| 8-5
18 0 || 29-982 || 79-9! 68-8 |11-1
Maximum
force in
yp, | 10™,
eeoe SoSeoeoe9o OSS
NEOF FNwWHENHFe Re BE
fan)
oo
: 24
: 24
= 22
: 28
Sky
clouded.
Species of Clouds and Meteorological Remark
Scud ; loose cumuli; cirro-cumulo-strati,
Thick scud, cirro-stratus ; drops of rain.
Scud ; cirro-cumulo-strati.
Cirro-stratous scud ; cirro-strati and haze.
Loose misty scud. r) h
Seud ; cir.-cum. and patches of light cirri; eur
Loose cumuli; cirro-strati.
Seud and loose cumuli; cirro-strati above.
IGEE cumulo-strati on E. hor
Masses of cumuli ; cirro-cumulo-strati.
id woolly cirri.
Cirri.
Woolly cirri and cirro-cumuli; cirro-strati and
Cirro-strati, cirri, and cirro-cumulo-strati.
Thick seud.
Seud ; cirri; cirro-cumuli. ‘
Scud and loose cumuli ; cirro-cumuli and cirro-s
Id. ; id. ; woolly cirri
ligkhs hazy cirro-strati and cim
Cirro-stratous scud ; cirro-strati. [cirro-
Id.; wo. and mot. cir.; cir.-str. with mot. ed
Woolly and mottled cirri and cirro-strati.
Cumuli; cirri and cirro-strati; solar halo at 42
Cirro-cumuli, cirro-strati, and cirri.
Masses of seud to W,; cir.-cum., cirri, and ci
Cirro-cumuli, woolly cirri, and cirro-strati ; cir. }
Id. ; cirrous haze.
GES woolly cirri; cirrous haze.
Patches of cumuli; sheets of cirri. ;
Wo. and mot. cirri; cum. ; cir.-str. and haze on
Woolly cirri and cirrous haze ; cirro-strati,
Tides cirro-strati.
Patches and sheets of cirri.
Id.
Woolly cirri and cirro-cumuli; hazy on horizon.
Tide id.
Woolly cirri and cirro-strati ; id.
Sheets of woolly cirri; patches of cumuli.
Mottled and woolly cirri ; cirro-strati and haze on ho
As before.
Cirri and cirrous haze.
Woolly and feathered cirri.
Id.
Id.
A few cumuli on S. and N. horizon ; haze on he
Id.
Cumuli and haze. () [haze
Loose cum. ; patches of cirro-strati to E. ; atn
As before.
Cirro-strati and haze on horizon.
Much haze on horizon; heavy dew on the g
Id.
Patches of loose cum. to N. and SE. ; very hazy om hot
Cumuli and haze on hor. q
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, 8S. = 16, W. Th
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
DAILY METEOROLOGICAL OBSERVATIONS, JUNE 18—24, 1846. 381
THERMOMETERS. WIND.
pmo: Masur Se ees Sky
METER Maxi See Or See ae i i
| a Diy. | Wee. (pide | force it [Prom movin g ||clouded. Species of Clouds and Meteorological Remarks.
| 14, | 10™,
in. 2 g ° || Is, | Ibs: | pt. || pt. pt pt. ||- 0—t0.
29-944 | 79-3| 69-8} 9-5|| 0-2] 0-2) 4 ||} 16:—:— || 9-5 | Cumuli; thunder-storm. (See footnote.)
943 || 65-6] 63-0} 2-6|| 1-9} 0-0] 6 8-5 || Thunder-storm nearly ended.
913 || 76-7 |66-7 |10-0 | 0-2] 0-1] 8 9-0 || Dense mass of cirro-stratus. eC}
908 || 73-0} 66-5] 6-5 || 0-1] 0-0} 14 || —:16:— | 8-5 || Cirro-stratous scud ; cirro-strati and haze. e|
910 | 66-0|163-2| 2-8] 0-1] 0-0] 18 10-0 leks id.
29-862 || 60-3} 58-3 |T2-0 || 0-1| 0-0) 22 || —:18:— 9-0 || Cir.-str.; cir.-cum. and cirri; parhelia seen at 184 307.
861 | 67-0} 63-5 |13-5 | 0-1] 0-0} 20 | 9-5 | Cir.-str. and cir. haze becoming thicker ; a few cumuli. |
846 || 74-8} 67-4| 7-4|| 0-2} 0-1) 20 || —:—:16] 5-5 || Woolly cirri; cumuli and haze round horizon. O}
830 || 80-5} 68-2 |12-3 |] 0-3) 0-1] 21 ||} 18:—:— 5-0 Piles of cumuli to N. and W.; hazy on hor.; distant thunder to E. ©
821 | 83-6| 68-9|14-7|| 0-6) 0-3} 16 || 21:—:—) 8-0 | Cum.-str. ; cirri; cirro-strati; distant thunder to E. ©
831 || 75-1] 63-7 11-4 || 1-0] 0-1) 30 | 20:20:—)| 7-5 || Cumuli and woolly cirro-stratus. [occasionally till 7». ©
841 71-8 63-7 ie 0-6) 0-2} 18 —:24:—. 7-5 Cir.-cum.-str.; large cum.-str.; cir.-str. and cirri; distant thunder
850 | 69-7| 64-5 |[5-2|| 0-3| 0-0; 20 |, —:28:—j] 7-0 || Loose seud ; cir.-cum.; cirri.; cumulo-strati on hor. eC}
29-912 || 59-5) 57-5} 2-0] 1-8] 0-8 Z 4:—:—| 10-0 Scud ; the wind sprung up about 9h and scud came up about 9) 30™,
30-024 || 54-1) 51-8} 2-3] 0-8] 0-3) 2 || 4:—:—!| 10-0 |} Send.
053 |} 55-2} 51-7) 3-5]/ 0-7] 0-4] 2 || 3:—:—J] 10-0 Id.
078 || 56-6} 52-4| 4.2|| 0-8} 0-6) 2 || 3:—:—|] 10-0 Id.
095 || 58-7} 53-0] 5-7|| 0-8] 0-4) 4 3:—:—]| 9-8 Id. ; cirro-strati.
086 || 59-2} 53-1) 6-1|| 0-7| 0-7) 4 4:—:24) 7-5 || Scud and cirro-cumulo-strati; woolly cirri. ‘s)
089 || 57-5| 52-0] 5-5|| 1-1] 0-7) 4 || 5:—:24] 7-0 | Scud; woolly cirri, moving very slowly. ‘S)
092 || 56-8; 51-5) 5-3] 0-7} 0-2) 2 || —:—:24|| 7-0 || Woolly cirri; cirrous haze. (S)
101 || 54-6| 50-3 |f4-3 || 0-3} 0-3| 7 2-5 Id. ; cirro-cumulo-strati. ©
110 || 51-2) 49-2 /12-0| 0-3} 0-1) 2 |} 8:—:—|! 7-0 || Scud and cirro-cumulo-strati.
30-013 || 68-1} 58-4] 9-7 || 0-3] 0-2) 12 0-0 || Clear during the most of the day ; cirri in the evening.
29-798 || 54-0} 50-9 /73-1]] 1-1} 0-0; O || —:—:18 | 3-0 || Woolly and mottled cirri; cir.-cum. and cirro-strati. ©
779 || 60-6} 54-5 |16-1]) 0-0] 0-0) 12 7-0 || Woolly cirri and cirro-strati. (0)
742 || 69-9} 57-2|12-7|| 0-2} 0-1} 4 /—:—:18|} 6-0 Id. e
| 697 || 75-3} 59-4/15-9 || 0-5| 0-4) 14 || —:—:18] 8-0 1 Be very hazy on horizon. ©
652 | 77-7} 63-5 |14-2|] 1-0] 0-7| 16 ]}—:—:18| 6-0 Id. ; id. ©
593 || 76-0} 65-8 |10-2|| 1-4] 0-4] 12 |/19:16:— || 8.0 Scud to SW.; cir.-str. and cir. haze, becoming thicker ; portion ofa halo.
i 554 || 73-8 762-8 LEO R iin <4a |e foul —— se — «191 | 8-0 Woolly cirri and cir. haze ; seud and cum, to W.; portion of a halo-©
| 527 || 69-5 462-2 7-3 || 0-5| 0-2} 15 || 16:—:—|| 9-0 Cumuli; mass of cirri and cirrous haze; distant thunder to W.
1 538 || 65-3) 61-4} 3-9]| 0-9] 0-1} 18 || —:15:— | 10-0 || Loose and spotted cirro-strati; mass of cirrous haze.
q i 29-345 || 60-9| 60-2] 0-7|| 0-0] 0-0} 4 |}14:—:—|| 10-0 || Loose cum. ; cir.-str. and cir. haze ; portion of a halo.@
Pt 327 || 60-5] 60-0} 0-5 || 0-0] 0-0] 4 || 14:—:—|! 10-0 || Scud; dense mass of clouds; rain® since 19% 30™,
2| 256 || 63-3} 61-7| 1-6|| 0-2| 0-1} 6 || 5:—:—]| 10-0 || Thick scud; dense covering of clouds; rain!
0 215 || 64-0| 62-6} 1-4|| 0-2} 0-2} 7 | 5:—:—!| 10-0 | Id. ; Gey: rain?
Q 142 || 63-4} 62-1} 1-3] 0-3] 0-3} 2 || 4:—:—|] 10-0 | Scud; id. ; misty; rain®®
:, 097 || 57-9} 57-0} 0-9] 0-5} 0-5] 25 || 26:—:— || 10-0 || Thick scud; rain?—?
5 O66 || 52-7) 51-4) 1-3) 1-8] 1-1] 26 || 26:—:—] 10-0 Td. ; id.
& 055 || 51-7} 49-8| 1-9|| 1-6] 1-0}] 20 ||} 24:—:—| 9.9 Id. ; cirro-strati.
i 29-038 || 50-4] 48-2] 2-2/| 1-1] 0-6} 22 || 23:—:—T]] 10-0 Td.
(18 28-988 | 47-1] 46-0] 1-1|| 2-7] 1-7] 19 || 24:—:—]] 10-0 || Scud; dense homogeneous mass of clouds; rain!
20 29-003 || 50-0} 48-0} 2-0]] 2-1] 1-4] 22 || 24:—:—|] 10.0 lige id. ; rain”
42 030 | 53-8; 50-2) 3-6] 2-5] 1-8] 22 || 24: —:—|] 10-0 Id. ; id.
045 | 58-9) 52-7] 6-2) 2-3} 0-9} 22 || 24:—:—]| 9-8 | Scud and cumuli; woolly cirri and cirro-strati. ‘S)
4 6©—sS« OGD || 59-2} 52-6} 6-6] 1-8] 0-7 | 22 || 24:—:—|| 10-0 | Masses of scud ; dense homogeneous cir.-str. and haze.
f 4 080 || 59-9} 52-0} 7-9]] 1-3] 0-3} 23 |}24:—:—]] 10-0 Id. ; cir.-str. and cir. haze; portionof a solar halo.
5078 || 59-81 52-4|t7-4|| 1-1] 0-3] 28 |} 24:—:—l|]| 8.0 || Masses of scud and loose cum.; cir. and cir. haze. ©
\ 1184 2h—4h, Great piles of electric cumuli; masses of black scud and cumuli; uniform to E. ; very hazy ; distant thunder heard first at 15 50™, many
she ; three flashes of lightning from 1) 55™ till 2h 0™ to E. from horizon to altitude 5°, followed by irregular and rather faint peals. At 25 30™,a
alo SE., thunder in 308.
chiefly to NW., the peals not so ver.
44
AG. AND MET. oss. 1846.
|
re
to 4h 9m, Occasional flashes, with thunder in about 125 ; very heavy rain.
al was heard at 4h 15m;
2h 55™, There has been a continuous intermitting grumbling to E. and SE. since 24; thunder has now commenced to SW. and
e flashes seen to SW., altitude 5°, thunder following in about 255. From this time there was an uninterrupted thundering, sometimes 3 or 4 flashes
Sin a minute ; the flashes were generally from the horizon to an altitude of 7° or 8°, interval 208 to 25° ; about 34 25™, the thunder had come nearer,
Wals being 75 to 95, and the flashes reaching an altitude of from 20° to 30°, many of the streaks seeming to be repeated four or five times. 35 25™, Gusts
from about W., large drops of rain, clouds moving from N.; 30™,a streak reaching from SW. to WNW. at an altitude of 20°, interval 105 ; 30™—40m,
y y frequent; 43™, two very loud peals in rapid succession, intervals 348 and 1}§, large hailstones, with heavy rain.
4h 0™, Clouds beginning to clear off from SW., rain ceased at 4h10™; a
; very distant peals were heard occasionally afterwards ; during the storm the temperature fell to 60°:5.
1914h, About 3h it was very black to N., and a good deal of rather distant thunder was heard from that quarter, with wind, which lowered the tempe-
. bout 8°; the thunder worked round by E. to SE., where it now is, but rather distant; dark-looking all round the horizon; sky in zenith.
dD
382 DaiLty METEOROLOGICAL OBSERVATIONS, JUNE 24—JuLy 1, 1846.
Time. at 32°, Dry. Wet.
24 8 || 29-101 || 55-7| 50-7
10 122 || 49.5| 47-5
18 || 29-206 || 49-2) 46-8
20 223 || 52-0) 49-8
22 234 || 59-6] 54-5
25 0 238 | 62.0} 54-4
18 || 29-296 || 55-4] 53-7
THERMOMETERS.
Diff.
adiee Ce) lee COC ince
oowy HH wo
WIND.
Maximum
force in
rh.
fk eek peek ek eet et
QbhANWDWO DO
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, 8. = 16, W.=4
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. i
Om:
From
Clouds,
Sc. : C.-s. :Ci.,
moving
from
Sky
clouded.
10-0
10-0
Species of Clouds and Meteorological Rems
Nimbi near hor.; cir.and cir.-str.; indistinct parhe
Cirro-strati and cirrous haze.
Cirro-cumuli.
Masses of scud and cumuli ; cirro-cumuli.
Scud and loose cumuli; woolly cirri. © [rai
Scud and heavy masses of loose cum.; loose cir.-eu
As before ; a peal of distant thunder to SE. at 1h 55™; drops
Loose scud ; mass of cir.-str.; cum.-str, on horizon; rain f r
Cir.-cum.-str. and cir.-str.; cum.-str.@ [in?—3si
Woolly cirri ; cirro-strati and cumuli.
Cirro-strati and haze on horizon.
Fog ; trees invisible at 250 yards.
Sheets of cir.-str. and woolly cir.© [of a solar
Scud and loose cum. ; woolly cir. and cir. haze;
des dense mass of cirrous haze.
Seud ; mass of cirro-stratus.
Tide id. ; rain!
Ids to W:7 ads; rain?
Seud ; id. ; rain!
ide: id
Sheets of cirro-strati.
Scud and loose cumuli.
Fats; cirro-strati.
As before ; shower* about 10™ since. [looking
Cir.-cum.-str. ; cum,-str. on hor.; nimbi to SE.;
Thick scud and cirro-stratus ; loose cumuli on §
Scud ; cumuli and cumulo-strati on horizon ; rai
As before ; rain?
Cumulo-strati and cirro-strati.
Loose cum. ; thick cir.-str. ; heavy rain in the ey
Seud ; cirro-strati on S. horizon.
Scud and loose cumuli.
Loose cumuli ; rain falling to SE.
Id.; sheets of cirro-strati.
Scud and loose cumuli ; slight shower.
Scud and cum. ; woolly cirri to E. ; nimbi round
Seud and cumuli; woolly cirri and cirro-cumuli,
Seud and cirro-strati.
Seud.
Thick scud, cirro-cumulo-strati, and woolly cirri
ids id. ; showers occasional
Id.
Id.; occasional slight showers.
Ge id.
Scud ; rain?
Masses of seud and loose cumuli; cirro-strati.
Scud ; sheets of woolly cirri.
Id.
Scud and cirro-cumulo-strati; cirro-str. and we
Id. ; id. @
Masses of cumulous scud ; homogeneous ci
Scud ; homogeneous cirro-stratus ; drops of rat
IG Maser
Id.
087
080
096
100
099
115
172
228
Ig) 29.368
h| 399
418
460
478
496
512
521
548
| 29-576
587
599
590
J
}
]
a
x
’
1
7)
a
§
J
5
]
B
:
i
a
f
.]
yr)
3
lL
rs
4
DAILY METEOROLOGICAL OBSERVATIONS, JULY 1—8, 1846. 383
THERMOMETERS. WIND. Clouds,
Resin Se. :C.-s.: Ci.,]| Sky ; oi
eee, toe og oe moving alouded! Species of Clouds and Meteorological Remarks.
14, ;10™. —
ec eC 2 lbs. | lbs. pt. pt. pt. pt 0—10.
60-6| 58-2) 2-4]) 0-8} 0-5] 17 || 20:—:—| 10-0 || Scud. ; rain?
59-4!| 57-6| 1-8|| 0-9] 0-3} 20 || 21:—:—|| 10-0 Id.
58-8 | 57-6} 1-2|| 0-5| 0-4] 20 || 24:—:—]] 9.5 Id. ; cirro-strati.
59-9| 55-7| 4-2|| 0-7| 0-1] 22 |} —: 20: — 9.5 || Cirro-stratous seud and cirro-strati; woolly cirri. (S)
61-3 | 54-8 |16-5 || 0-6| 0-3} 18 |} 24:—:—| 9.0 || Scud; cirro-strati and woolly cirri. e
63-0} 55-6] 7-4]| 1-2} 1-0] 21 ||}22:—:—]| 9.5 Id. ; cirro-strati.
64-2} 57-3| 6-9|| 1-2| 0-8] 22 |) 23:—:—|| 5.0 || Scud and loose cumuli; sheets of woolly cirri. ©
65-8| 57-6] 8-2]| 1-4] 0-7| 24 ||} 23:—:—]| 8.0 Id. ; id.
67:5| 61-4] 6-1) 1-2} 0-7} 22 || 24: —:— 8.5 ich cir.-str. and woolly cirri; cum.
67-0| 60-6 |6-4 || 0-9) 0-4] 18 ||} 24:—:—J|| 9.0 || Scud and cumuli; cirro-cumuli and cirri.
62-4| 59-0 |13-4|| 0-5] 0-2} 20 || 25:—:—)) 9-7 || Thick cirro-stratus and scud.
59-8 | 57-2| 2-6] 0-5} 0-0| 20 10-0 || Cirro-strati, cirri, and cirrous haze.
60-0 | 59-0| 1-0|| 0-3] 0-2} 20 10-0 || Scud; dense mass of cir.-str. ; shower? 10 minutes since.
61-2} 59-3} 1-9]) 1-1} 0-6} 20 10-0 || Nearly homogeneous.
61-5} 59-1) 2-4}) 1-7) 2-5] 17 || 19:—:—]| 10-0 |] Scud.
62:9 | 59-2) 3-7]| 3-0) 1-5] 17 || 20:—:—| 10-0 Id.
63-6 | 59-3} 4-3 || 2-9} 1-6) 20 || 20:— :— 9-7 || Scud; cirro-cumuli and cirro-strati.
65-7 | 61-8| 3-9} 2-6) 1-6] 23 |} 21:—:— 9.9 Id.; cir.-cum.-str. and woolly cir. ; cum.-str. to E.
62-3 | 58-7! 3-6]| 1-2} 0-6} 20 || 20:—:—|| 10.0 Id.
61-3 | 57-4} 3-9]) 1-1) 0-1} 14 |) 20:—:—J|| 9.0 || Seud and cirro-strati.
59-8 | 56-6] 3-2|/ 0-3] 0-2! O || 20:—:—|! 10.0 Scud.
58-8 | 55-9) 2-9]) 1-3) 0-7} 16 || 20:—:—|| 9-9 || Scud and loose cumuli; Cheviot obscured.
61-:5| 58-7} 2-8]) 1-3} 1-0} 17 ||} 21:—:—J|| 9-9 || Scud; dense mass of cirro-stratus.
64-2} 60-2| 4-0) 1-7} 1-5} 20 || 20:—:—J] 9.8 Id.
64-5 | 60-2] 4-3] 2-1] 0-4] 18 10-0 Id.
69-2} 62-6) 6-6] 1-5] 1-1) 16 |} 21:—:—]] 6-5 Id.; linear cirri; the clouds broke up at 1". ©
68-8} 63-7] 5-1|| 1-1] 0-4) 22 ||} 18:—:—|| 92.0 || Patches of scud; woolly cirri and cirro-strati. ©
68-0! 62-1] 5-9] 0-7} 0-3) 22 1-0 Id. ; id. ©
63-2 | 58-3] 4-9|| 0-5] 0-5} 20 0-5 || Cirro-strati on horizon. (0)
56-0| 54-6) 1-4|| 0-3) 0-0} 18 0-5 || Haze and cirro-strati on horizon. »)
76-1} 68-3) 7-8]| 0-3) 0-0] 14 |} —:20:—J| 2.0 || Cirro-cumuli and cirro-strati. 0)
61-6) 60-2| 1-4]) 5-8} 0-0 8 4:15:—|| 10-0
56-3} 54-0} 2-3]| 1-8) 0-8] 20 |) 21:—:—]| 9.5 || Scud; cirro-strati and cirro-cumulo-strati. [tion.
56-5| 54-4| 2-1] 1-7] 1-8} 20 || 20:—:—|| 10-0 Id.; dense mass of cir.-str.; rain? since last observa-
54-0| 53-3) 0-7]| 1-6] 1-3] 18 || 20: —:—J] 10-0 Id.; homogeneous mass of clouds ; rain?—*
55-3 | 54-1) 1-2]) 1-3) 1-0) 18 || 18:—:—]| 10-0 liclys aeons id.
57-0 | 55-6! 1-4]} 1-8] 0-8} 18 |} 19:—:—|| 10-0 lds: ides rain!
58-5 | 55-6) 2-9] 1-3| 0-4) 18 ||} 20:—:—J] 10.0 Id.; undulated cirro-strati ; stratus on Cheviot.
56-3 | 55-0} 1-3 || 0-6] 0-4] 20 || 22:25:—| 10-0 || Two currents of scud.
54-8| 52-6| 2-2) 1-7| 1-0] 30 || 0:—:—J] 10-0 || Scud and cirro-stratus ; the wind changed shortly be-
53-4| 50-7] 2-7}) 2-3) 1-5] O |}31:—:—| 9-5 || Scud; clearing to NW. [fore 75.
51:0] 46-2) 4-8 ]] 1-7] 0-1} 28 || 27:—:— 7-5 || Scud and loose cirro-strati ; scud lying on Cheviot.
53-5 | 47-4| 6-1] 0-8] 0-7] 31 || 30:—:—J| 2-0 || Loose seud; cumulo-strati and cirro-strati on horizon. ©
55-9| 49-0] 6-9]/ 1-3] 1-6) 31 |} 28:—:— 6-5 || Loose cumuli, cirro-cumuli, and cirro-strati. e
59-1| 51-0} 8-1]] 1-2) 0-4} 28 || 28:—:—}| 8.0 || Scud and cumuli.
61-1] 52-1] 9-0] 0-4} 0-1) 23 || 30:—:—} 9.5 || Seud, cumuli, and cirro-strati.
62-1] 52-8] 9-3]| 0-3) 0-1] O || 25:—:— 8-0 || As before; cumulo-strati; electric-looking to N. ©
58-0] 52-9} 5-1|| 0-1} 0-1) O }\24:—:—|| 9-5 || Thick dark scud & loose cum., having an internal motion ;
57-2| 53-6} 3-6]| 0-3] 0-0} 22 3-0 || Scud and cumuli. (0) [slight shower.
53-2} 50-2) 3-0|| 0-1} 0-0} 24 | 9-0 || Scud and cirro-strati.
50-7 | 48-9] 1-8|| 0-1] 0-0) 4 | 10-0 || Cir.-str. scud ; dense cir.-str.; white strati on Cheviot.
54.9| 51-3] 3-6]| 0-3) 0-2| 3 112:—:—]) 10-0 Scud ; cirro-strati; dense mass of black clouds to SW.
54-2} 51-2} 3-0|) 0-4] 0-3] 4 || 12:—:—J 10-0 || Thick seud and cumuli; cirro-strati; slight shower.
58-4} 53-0] 5-411 0-5| 0-5! 6 116: 12:—J!| 10-0 |i Scud; cirro-stratus.
July 64 4h,
5%. Between 3h and 4h the sky became covered with cirro-stratus and cirrous haze; about 64, very thick electric scud and loose cumuli came up from
»/th thunder and high wind; from 65 till about 74 30™, there was a great deal of thunder and lightning, the intervals between the flashes and the reports
from 48 to 128; about 7}, the storm seemed to have passed off to eastward; about 75 15™, a loud peal was heard to SW., the interval being 118; at
a brilliant flash, followed in 28 by a deafening report resembling a rapid succession of discharges of artillery; no loud thunder was heard after this;
Covered with dense cirro-stratus, uniform to E. and NE., occasional flashes of lightning there; loose white strati creeping over Cheviot. There was
ous rain from 6} till 8h, and at night after 10h, 2:023 in. of rain fell in less than 24 hours.
384 Datty METEOROLOGICAL OBSERVATIONS, JULY 8—14, 1846.
THERMOMETERS. WIND. Clouds
Si TE : Sc.:C.-s.:Ci,| Sk
Mean || METER Maximum pas ‘| ieee = a Species of Clouds and Meteorological Remarks.
Time. || at 32°. || Dry. | Wet. | Diff. force in |Fyom For ‘
14,|10™,
d. h in. G o = lbs. | Ibs. pt. pt. pt. pt. 0—10.
8 2 || 29-590 || 55-6] 51-9] 3-7|| 0-5] 0-1} 8 || 12:—:—)} 10-0 || Thick seud and cirro-strati.
4 583 || 55-7! 51-3) 4-4] 0-4) 0-3] 4 || 13:—:—] 10-0 Id.
6 582 || 54-4] 51-8] 2-6|| 0-5| 0-1} 4 || 9:—:—] 10-0 || Scud and dense cirro-stratus ; rain®?
8 578 || 52-7} 51-7} 1-0|| 0-3] 0-2) 4 10-0 dss drops of rain.
10 579 || 51-9| 51-2} 0-7|| 0-2} 0-1} 4 || 12:—:—J) 10-0 || Thick scud; rain!”
18 | 29.544 || 52-7) 51-7] 1-0|| 0-3} 0-2] 6] 9:—:—] 10-0 || Scud; cirro-stratus ; Cheviot invisible.
20 554 || 53-5] 52-6] 0-9]) 0-3} 0-2) 2 || 7:—:—| 10-0 || Id; id. ; id. ; rain”?
92 549 | 54-0] 53-0] 1-0]| 0-5/ 0-5} 4 || 5:—:—| 10-0 || Seud; rain!
9 0 548 || 54-3) 53-4] 0-9]| 0-7| 0-5 4 4:—:—|| 10-0 Id.
2 540 | 56-9] 55-7} 1-2] 0-5} 0-2} 5 | 6:—:—] 10-0 Id.
4 547 || 56-2| 54-8] 1-4]) 0-4) 0-1] 5 | 10:—:—| 10-0 Id.
6 537 || 56-4| 55-2] 1-2] 0-4| 0-2} 4 || 7:—:—] 10-0 || Scud; rain! from 4% 30™ till 55 40™,
8 548 || 56-5| 55-1] 1-4] 0-3] 0-1} 5 || 7:—:—|] 10-0 || Id.; dense cirro-stratus.
10 576 || 55-0) 53-6| 1-4] 0-3) 0-2) 4 | 7:—: 10-0 Id. ; id. Fok soul
18 || 29-617 || 53-7] 52-8] 0-9 || 0-2) 0-0 —:28:—|| 9-8 || Large cir.-cum.-str. ; cir.-str. and haze on hor. ; pate
20 651 | 58-0] 56-2} 1-8] 0-0} 0-0] 16 |} 4:—:—)|| 10-0 || Seud ; cirro-cumulo-strati and cirro-strati above.
22 665 | 62-8| 58-0] 4-8] 0-0} 0-0} 24 | 28:28: 0} 7-0 || Masses of cum. and cir.-cum.; woolly and tufted e
10 0 673 || 66-0} 58-8] 7-2]| 0-3] 0-1} 21 || 26:26: 0 7-0 || As before; woolly cirri and cirro-strati.
D, 680 | 64-8] 58-0! 6-8] 0-1 | 0-1] 26 ||} 28: 28:—J]) 8.0 || Scud, cumuli, and cirro-cumulo-strati.
4 676 || 65-2| 58-8] 6-4|| 0-2| 0-1] 27 || 26:26:—| 9.8 || As before; very electric-looking.
6 684 || 65-4| 57-0 |78-4|| 0-5| 0-3} 26 5-0 || Loose cumuli, cirro-strati, and cirrous haze.
8 716 || 59-0| 53-6|15-4 | 0-7| 0-5] 26 || —:—:30|| 3-0 || Cirri and cirrous haze.
10 744 || 54-2] 51-4| 2-8]| 0-5| 0-1] 20 3-0 abt masses of scud to W.
18 || 29-797 || 52-7) 50-2] 2-5 || 0-2| 0-1} 20 |—:30:—|| 5-5 || Cir.-cum.-str. and cir.-str. ; woolly and mottled cirz
20 805 || 56-0| 51-7} 4-3|| 0-6] 0-4] 21 ||—:29:—|| 9.5 || Cirro-stratous scud and cirro-stratus ; linear cirri.
22 808 | 59-3| 52-7] 6-6|| 1-3] 0-9} 25 || 26:—:—]) 10-0 || Scud and loose cumuli; cirro-strati and cirrous ha’
11 0 808 || 59-9} 54-1} 5-8]} 1-2] 0-4} 24 || 24:—:—J]| 10-0 |] Thick cirro-stratous scud.
2 812 || 62-0} 54-7| 7-3|| 0-9| 0-7| 24 || 26:—:—|| 9-9 || Thick seud; cirrous haze ; portion of a solar halo,
4 817 || 61-7] 54-9] 6-8] 1-5] 0-7| 24 || 26:—:— |) 10-0 1 id.
6 826 || 58-4] 53-4] 5-0]] 1-0] 0-4] 21 |} 25:—:—]] 10-0 || Scud, cirro-stratus, and cirro-cumuli.
8 820 || 57-6| 52-2] 5-41) 0-4] 0-3) 20 || —: 26:—J]] 10-0 || Cirro-strati and cirro-cumuli.
10 826 || 56-1} 51-6] 4-5 || 0-5} 0-3] 24 10-0 || Cirro-stratus and cirrous haze.
2313) 29-681 || 58-2) 56-0| 2-2]| 3-1) 1-4] 19 ||} 22:—:—J]) 10-0 || Send, cirro-stratus and cirrous haze. [on Chevi
1218 || 29-737 || 61-9| 59-3 |t2-6|| 2-5] 0-1| 22 ||—:24:24] 5-0 | Cir.-cum.-str.; woolly cir.; cir.-str. and seud ; seud}
20 751 || 67-3} 63-4| 3-9]} 0-1] 0-0] 8v.|| —:24:—QJ 9-5 || Cirro-stratous seud and cirro-cumulo-strati.
22 757 || 64-4| 61-0|13-4]| 0-5| 0-5] 18 || 24:—:—] 10-0 | Scud; cirro-strati.
13 0 749 || 68-8] 64-1] 4-7 || 0-6] 0-4| 19 || 22:—:—| 10-0 1G Re id.
2 736 || 69-2} 64-4] 4-8] 0-8] 0-6] 19 | 22:—:—)j| 10-0 de id. ; cirro-cumuli.
4 705 || 69:3| 64-7} 4-6]) 0-8] 0-6] 18 || 22:—:—] 9-9 Nd: ¢ id.
6 677 || 67-6| 63-4] 4-2]| 0-9] 0-5} 20 || 20:22:— | 9-5 IGE mts eS cirri.
8 665 || 64-3} 60-3 |t4-0 | 0-6| 0-2] 20 | 20:22:—| 6-5 || Id.;_ cirro-cumuli. ;
10 660 || 58-4| 56-2] 2-2] 0-3] 0-2| 26 || 20:—:—1|| 2-0 || Masses of scud; sheets of cirro-cumuli.
18 || 29-546 || 54-2| 53-0 |f1-2|| 0-3} 0-0] 24 10-0 || Dense mass of cirro-stratus.
20 540 || 59-5| 57-3 |{2-2 | 0-1| 0-0} 20 || —:20:—} 9-9 || Cirro-strati and cirro-cumulo-strati. ;
22 523 || 64-7| 60-7| 4-0]! 0-0} 0-0} 26 ||—:19:—J] 9-8 || Cirro-cumuli; a few masses of cumuli on horizon.
14 0 493 | 71-3} 63-0} 8-3] 0-1} 0-1} 28 | —:18:—] 6-0 Id. ; masses of cumuli.
2 467 || 72-0| 62-2} 9-8] 0-2) 0-0) 8 ||—:18:—|] 7-0 Id. ; id.
4. 460 || 68-8] 63-3] 5-5] 0-3} 0-3) 4 || —:21:—J|| 9-0 || Cirro-cumulo-strati; cumuli and haze round horiz
6 461 || 65-3} 60-5) 4-8]| 0-5] 0-1 2 ||—:20:—j 9-8 || Cirro-cumuli; cirro-strati; cumuli; hazy.
8 476 || 63-7| 59-7} 4-0] 0-2] 0-1) 4 10-0 || Cirro-cumulo-strati; cirrous haze and cirro-strati.
10 499 | 61-8) 58-2} 3-6] 0-2| 0-1] 22 || 18:—:—J| 10-0 || Scud; cirro-strati and cirri.
18 | 29-534 || 57-7) 56-0| 1-7]| 0-4] 0-2} 23 || —:24:—j 6-0 | Cirro-cumulo-strati and cirro-strati; woolly cirri.
20 557 || 61-1| 57-4] 3-7] 0-5| 0-3} 22 | 24:—:—l| 9-9 || Seud; cirro-cumulo-strati and cirro-strati.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, HB. = 8, S.=16, W.= 24. '
motions of the three strata of clouds, Se. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 4
=
SR SE RE SS ESS SERS TES SY
DAILY METEOROLOGICAL OBSERVATIONS, JULY 14—21, 1846. 385
THERMOMETERS. WIND.
pe antes: Sky
eae ae ie a moving ‘l iewaedl Species of Clouds and Meteorological Remarks.
14, | 10m, 2
f in. ¢ e : Ibs. | Ibs. | pt. |] pt. pt. pt. || 0—10.
29-561 || 67-2) 62-0) 5-2|| 0-6} 0-3] 20 || 23:—:— || 10-0 || Seud and cumuli,
578 || 63-6| 60-7] 2.9} 1-1] 0-1 | 22 || 24:—:—J 10-0 || Seud; cirro-strati ; drizzling shower at 23,
568 || 68-0} 61-0} 7-0 || 0-7] 0-5] 28 || 23:—:—| 9-5 Id.; cirro-cumulo-strati.
575 || 66-4] 59-2) 7-2]| 0-9] 0-3| 21 || 22:—:—] 9-8 IIel; 3 Tels 3 cirro-strati.
561 || 67-0] 60-1) 6-9] 0-7] 0-1] 26 || 23:—:—}] 8.0 Tae id.
553 || 63-0] 59-7} 3-3 || 0-6] 0-4) 20 || 23:—:—] 9:5 Id. ; id.
549 || 60-6] 58-7} 1-9}! 0-6] 0-3) 18 || 21:—:—] 10-0
29-397 || 59-0} 58-0| 1-0|| 0-4} 0-2] 22 || 21:—-:—|| 10-0 || Scud; dense mass of cirro-stratus.
359 || 63-7| 61-1] 2-6]] 0-4} 0-2] 18 || 20:—:—] 10-0 licks id. @
326 || 63-4) 60-9| 2-5 || 0-7) 0-6] 18 || 19:—:—|| 10-0 lige id.
296 || 66-0} 60-2} 5-8 |} 2-0} 1-0} 18 || 19:—:—] 10-0 Id.; cirro-stratus and cirrous haze.
265 || 64-1) 58-6] 5-5 || 0-9| 0-7| 18 || 19:—:—] 10-0 Id. ; id.
234 || 62-0) 58-2} 3-8]| 1-6] 0-6| 18 || 20:—:—] 10-0 ligh.= id. @
186 || 62-6} 58-0} 4-6 || 0-4] 0-2) 19 | 20:—:— 10-0 Ihe id.
156 || 60-0) 56-9} 3-1 || 0-6} 0-1] 19 || 20:—:—| 10-0 Tas Tders cirro-cumuli.
29.112 || 57-5) 55-6| 1-9]| 0-3] 0-0} 4 ||} 20:—:—j} 9-8 || Scud and cirro-strati.
8 | 28-978 || 55-4| 54-6] 0-8] 0-1] 0-0] 19 || 21:—:—] 9-9 || Scud; cirro-strati; rain?
. 970 || 58-8| 57-5] 1-3 || 0-0} 0-0} 20 9-9 a id. ; rain!
967 || 61-0} 56-2} 4-8 || 0-4| 0-3) 24 ||} 22:24:—] 8-0 || Seud and loose cumuli; cirro-cumulo-strati. S)
966 || 60-1} 55-0] 5-1] 1-0} 0-5} 24 || 24 :—:—J 10-0 || Seud and cirro-stratus.
970 || 62-6] 58-4} 4-2] 0-9] 0-3] 23 || 24:—-:— | 10-0 || Thick scud; heavy shower at 14 30™.
1 977 || 60-2) 56-3) 3-9] 0-7) 0-4] 27 | 24:—:—]| 10-0 Id. ; wavy cirro-strati; showers occasionally.
5 | 28-990 || 59-2) 54-2) 5-0) 0-6) 0-3) 28 | 23:—:—| 9-8 || Scud, loose cum., and cir.-str. ; rather electric-looking.
29-000 || 57-2} 53-5] 3-7|| 1-1| 0-4) 24 ||24:24:—] 9.7 || Id. Tdets showers occasionally.
017 || 55-4) 52-0] 3-4 || 0-5} 0-7| 20 || 24: 24:—J 8-0 || Scud and cirro-cumulo-strati.
8 || 29-034 || 50-2| 48-7) 1-5|| 0-6} 0-1} 21 | —:22:—] 9-8 || Cirro-stratous scud ; woolly cirri and cir.-str. [halo.@
29-011 || 56-0} 53-0} 3-0]| 0-2} 0-1) 20 || —:19:—|| 9-5 || Cir.-cum.-str.; woolly cir. and cir.-str.; portion of a solar
28-973 || 60-6} 54.7] 5-9|| 0-3] 0-3) 15 | 14:—:—J] 10-0 || Scud; dense homogeneous cirro-stratus ; rain”?
915 || 60-5] 55-2} 5-3]/ 0-2] 0-2) 12 10-0 Id. ; id. ; id.
860 | 54-0) 53-0) 1-0|) 0-5| 0-2] 10 || 12:12:—)} 10-0 || Scud and dense homogeneous cir.-str. ; continuous rain!—
800 || 62-2} 58-2] 4-0|| 0-3] 0-4] 15 || 17:17:—J] 10-0 Id.
778 || 62-2} 58-2} 4-0|| 0-7] 0-6] 16 | 19:19: —]| 10-0 Id.
Bj} 787 || 53-3| 51-6) 1-7]| 1-6| 1-5] 22 | 24:20:—J] 10-0 || Two currents of scud; drizzling rain”?
| 28-860 || 51-2} 48-4] 2-8]) 1-8] 1-5] 23 || 25:—:—]| 6-5 || Seud.
‘| 29-183 || 59-2} 52-8} 6-4|| 2.8] 0-5| 22 || 22:—:—|} 8-0 || Cumuli, seud, and sheets of cirri.
B | 29-489 || 51-2) 50-2} 1:0|| 2-8) 0-0] 12 | 20:—:—J] 9.5 |] Seud; cumuli and cirro-strati.
519 || 61-2] 56-0} 5-2)) 0-3] 0-3} 16 || 20:—:—|| 7-0 || Scud and cumuli; cumulo-strati on horizon. ©
541 || 61-9} 56-3] 5-6]| 1-2) 0-6} 20 || 20:—:—| 7-0 Id.; sheets of cirro-strati and cirri. ©
549 || 64-4] 57-0} 7-4]] 1-5] 1-0] 20 || 20:—:—| 6.0 Id. ; cirro-cumuli.
572 || 63-4| 57-1] 6-3|] 2-4] 0.4] 22 |}20:—:—|| 7-0 Tides id.
584 || 64-3] 55-9] 8-4]} 2-5] 1-5] 20 || 19:—:23}]| 2.7 Tass cirri. ©
594 || 62-5] 56-2 |T6-3 |) 2-4] 1-0} 21 || 21:—:20] 6-0 Id. ; id. e
614 || 57-3| 55-3|{2-0|| 1-1} 0-3} 20 || 21:—:—] 9.8 Id. ; cirro-strati and cirrous haze.
614 || 54-6} 53-0] 1-6|/ 0-3] 0-1] 20 || 21:—:—j} 10.0 Id. ; id.
| 29-515 || 53-5| 52-7] 0-8 || 0-9] 0-1] 14 | —:18:—| 10-0 || Cirro--stratous scud and cirro-stratus ; rain”?
479 || 57-2) 55-2} 2-0}| 0-2] 0-1) 16 || —: 20:—|| 10-0 Id. [rain®?
444 || 59-6} 57-5| 2-1]| 0-5] 0-1] 16 | 16:—:—|| 10-0 || Scud; dense uniform mass of clouds above; drizzling
418 || 64:0] 61-2) 2-8} 0-2} 0-2| 20 ||18:—:— || 9-9 | Id.;_ cir.-str.; heavy rain at intervals since last obser-
390 || 65-0) 61-4} 3-6|| 0-6] 0-4] 21 || 20:—:— 9-5 Id. ; Td id. [vation.
355 || 65-4} 59-4| 6-0]| 1-3] 0-9} 18 || 22:22:—|| 9-5 || Seud and cirro-cumulo-strati ; cum.-str. and cirro-strati.
349 || 62-1] 59-0! 3-1} 1-8} 0-6| 20 || 22:—:—J]} 9-8 || Seud, loose cumuli and cirro-cumulo-strati.
338 || 59-6) 57-4| 2-2| 1-4] 0-5| 20 || 20:—:—| 10.0 || Scud; cirro-strati; rain occasionally.
10} 329 | 57-6| 56-6/ 1-0] 0-6] 0°3| 21 10-0 || Scud and cirro-stratus ; rain
18 || 29-386 || 54.5! 50-6 73-9 || 2-11 1-0! 21 || 24:—:28] 4-5 || Patches of seud; woolly cirri; cirro-strati. ©
direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H. = 8, S.=16, W.= 24. The
ms of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
MAG. AND MET. oBs. 1846. i
d. he in.
21 20 || 29-417
22 446
22 0 483
2 510
4 530
6 540
8 553
10 555
18 || 29-496
20 470
P 2D 430
123 0 379
2 346
4 305
6 286
8 282
10 327
18 || 29-410
20 424
22 439
24 0 440
2 448
4 447
6 454
8 465
10 477
18 || 29-535
20 550
22 573
25 0 597
2 610
4 628
6 639
8 677
10 707
23 || 29-826
26 18 || 29-661
20 668
22 695
27 0 709
2 726
4 735
6 756
8 764
10 773
18 || 29-809
20 825
22 832
28 0 841
2 838
4 825
6 828
8 || 823
10 || 824
Daity METEOROLOGICAL OBSERVATIONS, JULY 21—28, 1846.
THERMOMETERS.
Dry.
Wet.
Diff.
WIND.
Clouds,
Westen Se.: C.-s. Gi.
force in |p | moving
1b, |10™. Brom) from
lbs. | lbs. | pt. | pte pt. pt.
1-4] 0-7| 23 || 26: 26:—
pis) || be) I O.i55 3 a
2-5.| 0-9| 26 |} 25 :—:—
BHO |) Weil) Bio) | eee
1:8] 0-6) 22 | 293:—:—
eT Orsi] Qaeda
0:6| 0-2} 19 | 22 PN
0-3} 0-1) 18 ||
0-5] 0-1) 19 | 19:—:—
0-4} 0-1} 16 ||
1-3} 1-3) 16 | 17:—:—
1-8 | 2-2) 15 4 07 22 —
26 | 1-31 17 hh lg ce
3:8 2-43) Ton lye
3-0) 2:0)" LS ai 1S <a
3-:0| 2-0| 17 || 19:20:20
3-1] 1-4] 18 || 20:—:—
|
2.2) 0-5] 20 || 19: —: 20
1-3] 0-4] 19 || 20: 20:20
1-6} 1-0} 18 || 18: 20:—
2-5) Me2. RS: : os
Of) ea) LOW 18 3 —— 3 —
Dei eeu a antsy
Seo Le aelo) =" is
1-8 )).1-1,| 20.)
0-6] 0-0) 16
Ost | 20-1, 20) |) — = = 9
3) Oza te Oa
1:7] 1-2] 22 || 20:—:—
1-83 0-9)022 020 +=
Def | 5 20) 22)
D2) Wie |) QW 2D) eres
PSTD RCo) feel || "2. oe Se
1:6} 0-3) 18
0-4| 0-0| 20
0:2) 0.2) 20 || 20 :—:—
2:0! 1-2] 18 | 20 ——
125) 1025) 202 3 BOF
0-9| 1-3| 21 || 21: —
2:3) hf 1S) ae ——
DaGuiale gen LO oi a=
3:0) 1-4) 22 || 92 :——:—
1665) 50) 20) 21 == 24
Peal iad) || 20) |) Wives — se
1S) eh O20 2h <20)> —
They) OHS) NS) |) StS
1-6} 0-1} 18 |} 21 :—:—
1:4] 0-6} 18 || 21 :—:—
19) 4) ON 20 ===
2-4| 2.2) 22 ||}20:—:21
1:8] 1-3} 20 || 20 :—
Sis elkete i Sh, {Il P19) S200)
1-9) 0-1] 18 || —:21: —
| 1-3] 0-2} 18
Sky
clouded.
Id.; woolly cirri and cirro-stratus. r
Id.; thick cirro-stratus and cirrous haze. t
Seud and cumuli; woolly cirri to W. x
| Patches of seud ; woolly cirri and cirro-strati.
| Woolly cirri; scud and cumuli on horizon. ¢
| Seud and cirro- strati.
| Id.; cirro-stratus.
4
:
Species of Clouds and Meteorological Remarks.
Scud and cirro-cumulo-strati; woolly cirri. L
Scud and loose eumuli. 3
Id. 4
Id. 3
Tid. cumulo-strati on horizon.
Send, loose cum., cir.-str., and cir. haze ; solar halo at’
Thick cirro- -stratus and sud. ¢.
niGWe rain?? :
Seud ; wavy cirro-strati. i
Cirro-stratous scud and cirro-strati. t
Scud; dense cirro-stratus. 6
Id. ; nde}; rain! t
Tdi; id. }
Id. ; id. a
Id.; cirri and cirro-cumuli.
Id.; cirro-strati and cirrous haze.
Scud ; woolly cir. ; cum. on hor. ; portion of ah alo
Id.; slight drizzle.
Masses of scud and cumuli; tufts of cirri.
Patches of scud ; cirro-strati on horizon.
Cirro-strati on horizon.
Woolly cir. ; cir.-str. ; patches of scud on S. horizo
Seud and cumuli; woolly cirri and cirro-strati.
Cumuli.
Seud and cumuli; occasional slight showers. >
Tdi id.
Id. ; woolly cirri and cirro-strati.
Tabs id. © [the S. of the
Cir.-str. and woolly cir.: cum. on S. hor. ; parheli¢
Seud ; cir.-str. ; cir. haze ; cum. on S. hor.; drops of
Cumuli; linear cirri.
Seud ; light drizzling rain.
Id. ; cir.-cum. and cir.-str.; rain occasionally since
Gane stratous scud and cirro-strati.
Scud moving quickly; cir.-strati with mottled edges to W.;
Sand -Wcienosatestttentdicsents (covered with mist ; drops of
Scud ; woolly and mottled cirri; cirro-strati.
Misty scud ; cirro-strati.
id...; cirro-cumulo-strati ; cirro-strati.
Id.; slight drizzling rain.
; cirro-strati.
Id.; cumulo-strati on E. horizon. :
.; thick woolly cirri; cum.-str. on hor. ; porti¢
Id.; cirro-strati. [a he
Id. ; cirro-stratus.
Cirro-stratous scud and cirro-strati; woolly cirri.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, K.=8, 8. = 16, W.= = 2h :
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. a.
THERMOMETERS. WIND.
Maximum
Dry. | Wet. force in ©
10,
a f lbs.
59-7 : 0-0
55-6 0-2} 0-0
59-4 0:0} 0-0 4
59-6 0-0} 0-0 4
59-7 0-2) 0-2} 4
57°38 : 0:3 3)
55:8 0-2 4
55-6 0-2 4
55-2 0-1 4
57-1 0-4] 0-1 4
59-0 : 0-1 4
61-3 0-2; 0-1] 7
62-0 0-2} 0-2 3
64-7 0-2| 0-2 6
65-1 0-8} 0-8 2
62-3 0-6} 0-4 6
60-6 0:7 | 0-5 6
59-7 0-4| 0-2 6
57-9 0-2) 0-2 6
58-0 0-2) 0-1 6
59-6 0-2} 0-1 2
62-2 0-2} 0-2 8
61-4 0-7| 0-4 5
60-1 0-9} 0-5 a.
59-2 0-4| 0-4 2
57-8 0-4} 0-3 4
56-6 0-3) 0-1 4
508-5 0-2} 0-0 3
60-5 0-3} 0-1 3
62-4 0-2) 0-1 6
64-4 0-4) 0-3 8
64.4 0:6) 0-2 6
64-8 3:0| 0-4 2
64-9 0-8} 0-3 5
62:3 0-5) 0-3/ 5
61-4 0-4| 0-2 4
62-6 0-3! 0-1 2
62-0 0-5 | 0-0 4
62-9 . 0-0 4
64-2 0-2} 0-1 4
65-2 : 0-1 6
67-7 0-1 3
66-7 -3| 0-4) Sy.
761-7 0-3) 0-2) 12
62:8 0-3| 0-1| 11
60-4 0-1} 0-1 0
58-9 0-1 | 0-0 4
60-6 0-2} 0-2 4
62-1 0-2/ 0-2) 4
63:8 0-3) 0-2 6
62-5 0-5 | 0-3 8
63-5 : 0-2 4
61-0 0-2) 0-2) 12
60-4 0-2} 0-1! 10
Clouds,
Se.: C.-s.:
moving
from
pt. pt. pt.
19:—:
20: —
20, —
4:—
i
5:—
3:—
6:—:
7a Oe
6:—
5:—
5:—
5:—
5:—
5:—
—:10:
—: 8:
6:—
14:10:
13:—:
Ff ee
9:—:
COS 1133.8
If 2S:
10:14:
S: 16:
2s
Sky
clouded.
DarLy METEOROLOGICAL OBSERVATIONS, JULY 28—AvGustT 4, 1846. 387
Species of Clouds and Meteorological Remarks.
Scud and cirro-stratus.
id; rain?
Cirro-stratous scud. e@
Seud ; rain?
Nearly homogeneous.
Scud; rain?-+
Id.; rain
Rain? ; mist.
Rain®?; id.; no rain fell after 202.
Homogeneous mass.
Tae misty, objects invisible at 3 miles.
Seud ; misty on horizon.
Id. ; cirri. (S)
Misty scud ; cum. and cir.-cum.-str. ; woolly cirri; very
Dense mass of cirro-stratus. [hazy on EH. hor.©
Id.
Scotch mist ; objects invisible at 2 of a mile.
Tas id.
Misty seud.
Scud and loose cum. ; woolly cirri; very hazy on hor.©
Scud and cirro-stratus; hazy on horizon.
Misty scud.
Seud; cirro-stratus.
Misty scud; misty, objects invisible at 2 miles.
Very misty, objects invisible at 1 mile.
Mist, objects invisible at 500 yards.
Scud ; mist cleared off.
Id.; cumuli and haze on E. horizon.
Sheets of cirro-strati to S.
Cirro-cumulo-strati and cirro-strati.
Cumulo-strati and haze on HE. and S. horizon.
Cirro-cumulo-strati; cirro-strati and haze.
Misty scud ; mist coming on.
Very misty, objects invisible at + of a mile.
OODO0O
Thick foggy clouds.
Fog, objects invisible at 500 yards.
id... id. ; slight drizzling rain.
Jig id. 13 miles.
Id., id. 3 miles.
Seud and enmuli; woolly cirro-cumuli; hazy on hor.©
Cumuli; woolly cirri; cumuli and haze on horizon. ©
Woolly cir.; cum.-str. on 8. hor.; cir.-str. and haze on
Woolly cirri and cirro-strati. © [hor. ©
Woolly cirro-cumuli, cirri, and cirro-strati. »)
Fog, trees invisible at ? of a mile.
Seud.
Id.; cumuli and cirro-strati. ©
Two currents of cumuli; woolly cirri and cirro-strati.
Loose cumuli; woolly cirri; cirro-strati.
Scud ; loose cumuli; cirro-cumuli.
Td iden woolly cirri.
Scud and cumuli ; id. (S)
Severe thunder-storm from 11" till 13%, the lightning chiefly sheet, and the nearest distance of the thunder about half-a-
; a. rain all night, sometimes excessively heavy.
3:063 in. of rain fell in about 19 hours.
Observation made at 18 15™,
388 DAILy METEOROLOGICAL OBSERVATIONS, AuGusT 4—11, 1846.
THERMOMETERS. WIND. Clouds
Gott | sBaee: saci Se.:0.-8.:Ci,|| Sky
ee ae ee ie a moving eloudeid: Species of Clouds and Meteorological Remarks.
14, |10™, ian xy
al eee 2 nas jl ae ieee 5
a oh in. ° ° ° || tbs. | Ibs. | pt. || pt- pt. pt. |} o—10. 3
4 10 || 29-738 || 61-3] 59-8} 1-5|| 0-2] 0-1) 4 7-0 || Scud and cirro-cumulo-strati. 2
18 || 29-737 || 58-3] 57-8] 0-5|| 0-1] 0-0] 1 10-0 || Homogeneous ; misty. 4
20 747 || 60-0} 59-2) 0-8|| 0-0} 0-0 10-0 Tdi id. al
22 741 || 64-0} 61-0) 3-0) 0-1] 0-1} 4 | 6:12:—J 9-5 || Loose seud and cumuli; cirro-cumulo-strati. j
5 0 741 || 69-0} 63-6] 5-4|| 0-1] 0-1] 8 || 16:—:—J} 9-9 || Seud; loose cumuli; cirro-strati. ain
2 731 || 64-0} 62-5) 1-5]] 0-1} 0-1) 4 10-0 || Cir.-str. scud ; cum. ; several peals of thunder since (
4 722 || 70-5| 65-2] 5-3]} 0-3} 0-1] 14 | 12:—: 20 4:0 || Scud; loose cum. and cir.-cum.-str. ; patches of cirri,
6 722 || 69-9} 64-9} 5-0}| 0-1] 0-0] 16 | 22: 22 :— 9-7 Tid. id.
8 729 || 66-7| 63-8] 2-9|| 0-1} 0-1] 18 |—:24:—J| 9.5 || Cirro-cumulo-strati. -
10 745 || 60-0} 59-4] 0-6]] 0-1} 0-0} 20 | 1-0 || Cirro-strati and cirrous haze; stratus on the ground.
18 || 29-756 || 53-0] 52-8] 0-2]] 0-1] 0-0| 18 | 2-0 || Stratus. 4
20 762 || 59-0] 57-8} 1-2]| 0-0} 0-0] 20 0-5 || Patches of cirro-strati; fog on horizon. =
22 754 || 68-0] 64-2} 3-8 || 0-1] 0-1} 20 | 0-5 || Cirro-strati and haze on horizon ; cumuli on NE. hor
6 0 757 \| 72-0) 63:8) 8-2)! 0-1) O-1)\ 12. )|—: —: 24 5-0 || Woolly cirri; loose cumuli ; cumuli and haze on hor
2 733 || 74:7] 65-3] 9-4]| 0-1] 0-1} 14 | —:—:23]| 4.0 Hess id. ; id. :
4 707 || 76-9] 66-6 |10-3|| 0-1} 0-0] 30 7-0 Id. ; masses of cumuli. e
6 695 || 73-3} 68-0 |T5-3 || 0-2} 0-2} 3 3-0 Id. ; cumuli and fog on horizon. ae
8 700 || 68-5} 63-0 |15-5|| 0-3} 0-1] 1 |—:22:—| 3-5 || Cir.-cum.-str.; woolly and mottled cirri ; fog on hor,
10 700 || 61-2} 60-0] 1-2]] 0-1] 0-1} 2 2-5 || Mottled and woolly cirri and cirrous haze. 4
18 || 29-642 || 58-1| 57-4] 9.7]| 0-2] 0-1| 4 | 6:—:—|! 10-0 || Misty scud. y
20 647 || 62-4] 60-4] 2-0]| 0-1] 0-1 3 6.2 9-9 || Scud ; patches of cirri and cirro-cumuli. e
22 635 || 60-8} 60-3] 0-5|| 0-0| 0-0/ 4 | 5:—:—|} 10-0 || Scud; rain?~*; distant thunder to E. ; frequent hes
7 0 620 || 63-0] 62-0] 1-0|| 0-3] 0-6] 4 | 5:—:—|| 10-0 || Scud. [showers since 2
2 589 || 63-3} 62-1] 1-2|| 0-9] 0-4) 8 |—: 5:—T|| 10-0 | Cirro-stratous scud. [then, distance about an
4. 592 || 63-1] 63-0! 0-1]|| 0-8! 0.3 2 10-0 Very thick and dark ; rain‘~7 commenced at 3" 54™ ; a peal of thur
6 536 || 63-8} 63-2] 0-6|| 0-4] 0-5] 4 10-0 || Nearly homogeneous; misty; rain* '
8 518 || 63-2] 63-0| 0-2|| 0-5] 0-4) 6 10-0 || Thick mist, objects invisible at } of a mile ; rain!
10 515 62 8 62-6 0 2 0 5 0 3 6 10-0 { oe eeabr hase since 9h; there wns baz ocoasionslly thvasbeaia
18 || 29-406 || 62-4] 62-2] 0-2|| 0-6] 0-1] 4 | 7:—:—| 10-0 |) Misty scud. ~
20 427 || 64-8] 64-3] 0-5]] 0-1] 0-0} 8 || 6:—:—] 10-0 , Id. .
22 427 || 67-2| 65-2| 2-0]| 0-0} 0-0 10-0 Id.
8 0 426 || 69-2] 66-2] 3-0|| 0-1} 0-0] 31 |} 13:13:—J| 10-0 || Scud and cirro-cumulo-strati.
D) 418 || 67-8] 65-0] 2-8]] 0-4] 0-1/8 v. || 13:—:— 9-9 || Thick black mass to N.; cir.-cum.-str. and cir.-str.
4 405 || 72:4.) 69:0) 3-4 || 0-1) O.1 | 30 1.18 -—: — 8-0 Scud and loose cumuli; cir.-str.; occasional thunder to NE. and
6 4045) Sl? I NGreo ea cONmOstn|) Oil) vali -afisys 8-5 || Cir.-cum.-str.; cum. round hor.; thunder to NE.
8 404 || 65-6] 63-4] 2-2]! 0-1] 0-1] 18 4.0 IGE eumuli and fog on horizon. ;
10 423 || 61-8| 61-2] 0-6|| 0-1] 0-1} 18 eee 5s dee cirro-strati and fog.
223|| 29-508 || 67-3] 62-3] 5-0|| 0-5] 0-3] 20 | 20: —:— | 9.0 || Scud and loose cumuli; cirro-cumulo-strati and cir.
918 || 29-648 || 55-0] 54-5] 0-5/] 1:3] 0-1} 20 || 20:—:— 3-5 || Seud, loose cumuli, cirro-strati, cir.-cum., and cirri.
20 653 || 58-1] 55-7] 2-4/1 0-5] 0-3] 20 |20:—:—]| 3-0 || Id., id., cirri. .
22 645 || 63-2} 58-2] 5-0|| 1-5] 0-7| 21 |20:—:—] 3.0 | Id., id., id.
10 0 643 || 64:7] 58-7} 6-0|| 1-3] 1-2} 20 ||}20:—:—] 9-5 || Scud; cirro-strati. -
2 641 || 66-3| 59-4! 6-9]| 2-8! 1-.2/ 19 |19:—:— 7-0 || Scud and loose cumuli; woolly cirri and cirro-strat
4 628 || 64-6} 59-8] 4-8]| 1-9] 1-0] 19 |}18:—:—| 8-0 Id. ; id.
6 605 || 63-2| 58-6| 4-6]] 1-1] 0-6] 18 |}18:—:—]| 9-5 Id. ; id.
8 602 || 58-8] 56-2| 2-6] 0-7! 0-2| 19 |19:18:—)| 6-0 || Scud; wool. cir.-cum. ; cir.-str.; drizzling rain sineé
10 605 || 55-2! 53-5] 1-7] 0-5| 0-2] 20 | 0-2. || Cir.-str. onhor.; two flashes of lightning to SE. sinee €
18 || 29-580 || 55-0} 53-5] 1-5/} 1-1] 1-2] 21 | —:21:22) 6-5 || Cirro-stratous seud ; woolly and mottled cirri.
20 592 || 57-0| 53-7] 3-3]| 2-1] 1-1] 20 |22:—:—|| 9-8 || Scud; cirro-strati and woolly cirri.
22 600 || 59-9| 55-3] 4-6]] 1-8] 1-2} 22 || 22 :—:— 10-0 IGES id.
11 0 611 || 62-0! 57-41 4-6]| 2-1} 1-3! 20 |21:—:—Jl 9.8 Id.; cirro-strati and cirro-cumulo-strati.
Aug. 62 18h, Observation made at 18h 6™,
Aug. 64 20, The tops of cumuli seen occasionally to S. beyond the scud; several peals of distant thunder heard to SSW. since 19h 45m, The the
gradually came nearer till 21h when its distance was about 14 miles, it then passed off towards NE. ; nearly continuous heavy rain from 20) 25m™ till 21? 1
rain? afterwards. “|
Aug. 82 0b, From 02 20™ frequent distant thunder was heard to the S. and SW.; about 15 15™, it had approached nearer, when the thunder |
lightning in 208 ; about 1 30™, a black mass of cloud came up over the zenith, when loud peals of thunder followed the lightning in 5° to 8§ ; at 1 3 me
rain began to fall in spoonfuls, and when it ceased at 1h 55™ it was found that 0°590 inch had fallen in 20™. The storm moved off to NE., with occasion
of thunder afterwards. 2h 0™, Thick black mass to N., with loose detached patches below. ,
THERMOMETERS.
BARO-
METER
at 32°.
ott.
ean
Dry. | Wet. | Diff.
h. in. = $ 2
j 2 || 29-620 || 61-5) 56-6; 4-9
4 636 || 62-5| 57-0) 5-5
6 648 || 61-4| 56-7] 4.7
8 655 || 58-2| 55-1] 3-1
10 691 || 57-4] 54-8] 2-6
118 |) 29-754 || 55-0] 52-6] 2.4
}20 777 || 58-2| 54-8| 3.4
(22 789 || 60-7| 55-7 | 5-0
| 0 781 || 62-3| 57-5| 4-8
}2) 785 | 63-7) 58-2) 5-5
14 762 || 64-2| 57-1| 7-1
16 755 || 64-6| 56.2] 8.4
18 732 || 59-2| 55-8] 3.4
110 697 || 56-8| 54-2] 2.6
18 || 29-358 || 57-6| 56-8 | 0-8
20 299 || 60-7| 59-2) 1-5
22 226 || 65-7| 62-8} 2-9
10 172 || 61-0| 60-7] 0-3
12 118 || 64-3] 62-8] 1-5
4 157 || 66-0| 61-1} 4-9
16 215 || 63-2] 57-8| 5-4
18 331 || 59-4] 54-7| 4.7
10 415 || 56-2| 52-8] 3.4
118 || 29-589 |) 46-7] 45.0 |f1-7
20 || 614 || 52-9] 50.0 |12-9
p2 || 617 || 57-8| 51-4] 6-4
10 642 || 62-3] 55-5| 6-8
12 650 || 65-9| 57-8] 8-1
14 649 || 63-8] 56-7| 7-1
6|| 640 | 62-6) 56-0| 6-6
18 652 || 58-3] 54-0] 4.3
10} 619 || 53-0] 51-0] 2-0
18 || 29-504 || 53-6] 52-9] 0-7
po 461 || 57-0| 55-3} 1-7
p2 | 426 | 62-0) 58-6| 3-4
10 401 || 64-2] 60-2| 4-0
12}| 374 || 62-4| 60.7] 1-7
14) 357 || 62.2| 60.2] 2.0
16] 337 || 58-4| 57-0] 1-4
8} 339 | 56-9] 55-1] 1-8
0} 349 || 54-5] 53-2] 1-3
222) 29.425 || 62-4| 57-6] 4-8
(8 || 29-514 || 56-4} 55-0] 1-4
20 |} 523 || 60-4] 58-3| 2-1
221) 520 || 64-0; 60-1} 3-9
40]} 510 || 65-6| 59-6} 6-0
42} 508 || 61-8| 57-8] 4-0
4 489 || 62-6] 59-9} 2-7
6] 463 || 63-8] 60-3} 3-5
18i| 456 || 61-0] 58-7| 2-3
0) 446 | 58-0} 56-2) 1-8
} (8 || 29-316 || 56-0| 55-5] 0-5
0 305 || 57-0| 55-6| 1-4
-?2 || 295 || 58-0} 57-2! 0-8
MAG. AND MET. oss., 1846.
1
‘a
Maximum
force in
yh,
WIND.
10™,
>SNSoS 9990996
Ore DN KK NADH Ww
(=)
—
“IO ©
Clouds,
Se.: C.-s: Ci,
moving
from
12:
Ds
12:
DaiILy METEOROLOGICAL OBSERVATIONS, AuGust 11—17, 1846.
Sky
clouded.
389
Species of Clouds and Meteorological Remarks.
Seud ; cirro-strati and cirro-cumulo-strati.
Id.; cirro-cumulo-strati; sheets of cir.-str. on hor.
Id.; cirro-strati.
Id. ; id.
Td.
Scud and cirro-cumulo-strati.
Scud.
Id.
Cirro-stratous scud ; cumuli on N. horizon.
Id.
Scud ; loose cumuli; cirro-cumuli.
Cirro-strati ; woolly and mottled cirri.
Cirro-stratous scud and cirro-strati.
Td.
Seud ; cirro-strati; rain®?
Id. ; id. ; rain!
Td. ; id.
Id. ; rain®
Id. ; dense cirro-stratus ; rain?—®
Seud and loose cumuli; woolly cirri.
Cirro-cumulo-strati ; cumulo-strati to SE. ; cir.-str.
Cirro-stratous send and dense undulated cirro-strati.
As before.
Patches of cirri scattered over the sky; cirro-strati. ©
Patches of scud ; loose cum. on Cheviot; patches of cir.-
Loose cum. and cir.-str.; woolly cir.© [str. and cir.©
Loose cumuli and cirro-strati ; woolly cirri.
Loose eumuli; woolly cirro-cumuli and cumulo-strati. ©
Id. ; cirri and cirro-strati.
Cir.-str. secud ; woolly and mottled cirri; cir.-str. 0)
Cirro-cumulo-strati ; woolly cirri and sheets of cir.-str.
oO
oO
Seud and thick cirro-stratus ; rain”?
Id.
Id.
Id. ; drops of rain.
Id. ; rain”
Id.
Cirro-cumulo-strati and woolly cirri; cirro-strati.
Cumulo-strati and cirro-strati on horizon.
Scud and cirro-strati round horizon.
Scud and cumuli.
Thick scud and cirro-stratus.
Seud ; cirro-cumuli.
Id. ; id.
Cirro-cumulo-strati and cum.; woolly cir. and cir.-str. ©]
Cirro-stratous scud and wavy cirro-strati.
Scud; loose cumuli; cirro-strati; rain about 32.
Id. ; id. ; id. ; drops of rain.
Cirro-cumulo-strati ; cirro-strati and cumuli.
Scud and cirro-strati.
Scud ; mass of cirro-strati.
Td. ; id.
Id. ; id. ; rain?
di The direction of the wind is indicated by the number of thé point of the compass, reckoning N. = 0, H. = 8,8. = 16, W.= 24. The
} tions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
5F
390
Gott. BaRo-
Mean METER
Time. || at 32°.
denne in.
18 0O || 29-274
2 265
4 261
6 273
8 307
10 339
18 || 29-406
20 439
22 456
19 0 468
2 478
4 483
6 503
8 512
10 536
18 || 29-514
20 512
22 509
20 0 498
2 481
4 460
6 457
8 471
10 488
18 || 29-564
20 621
22 671
21 0 705
2 733
4 741
6 755
8 793
10 815
18 || 29-819
20 836
22 836
P44 \(9) 828
2 827
4 819
6 825
8 843
10 858
23 0 || 29-995
18 || 30-051
20 067
22 065
24 0 080
2 081
4 077
6 083
8 095
10 117
18 || 30-124
20 132
DaILty METEOROLOGICAL OBSERVATIONS, AUGUST 18—24, 1846.
THERMOMETERS.
Dry. | Wet.
58-8 | 58-4
63-6 | 61-0
66-7| 61-4
62:6 | 59-5
56-2} 55-0
50:8 | 55-6
52:0} 51-6
53:0 | 52-5
62-8 | 60-3
64:0} 58-8
65-0} 59-2
65-4| 59-0
64-0 | 59-0
59-2| 57-9
54:8} 54-2
52:8 | 52.3
57-0| 55-3
48-8 | 48-1
DOO AWNOKF ONION DONH OOD
ROU eo, OS ote Ol Fie ico
55-7 | 53-1
47-3 | 46-6
42-0] 41-7 |t
Maximum
force in
[e.
0-3
Slee Se SS SS
NWR DOR Ree eR
0-5
eooosoo00 Soos
20
16
20
Clouds,
.: C.-s. :Ci.,
moving
from
730:;
“BO:
Species of Clouds and Meteorological Remarks.
Seud; mass of cirro-strati; rain? ;
Id. ; loose cumuli; cirro-cumulo-strati. :
Loose cumuli. 5
Electric clouds to S. and W.; cumuli; woolly ci ri,
Scud ; cirri.
Overcast ; slight fog. q
Fog, rendering trees invisible at 4 of a mile.
Loose foggy scud clearing off ; seud and woolly ci
Misty scud; loose cumuli; woolly cirri. |
Seud and loose cumuli ; large piles of cumuli to Y v.
Loose cumuli.
Id.
Cum., cum.-str., cirri, and cirrous haze round horizon
Stratus and haze round horizon. Ff
Scud and cirro-strati ; misty.
3}
Cirro-cumulo-strati and cirro-strati. il
A few patches of scud ; cir.-str., cir.-cum., and cir, ha
Id. ; dense mass of cirro- Sina
Loose scud ; dee mass of cir.-str.; rain! since!
Scud ; Saat [observat 1
Id.; cirro-strati. . a
Id. id. e
Id.; cirro-stratus. by
TG e id.
Seud ; cirro-stratus. i
Id. =
Id. P id. a
Seud and cirro-cumulo-strati; cirro-stratus. 4
Ids3 id.
Scud and loose cumuli; loose cirro-cumulo-strati. _
Cirro-cumulo-strati. %
Seud ; woolly cirri.
Scud and cirro-strati.
Cirro-cum.-strati. | [from about WSW. an hour:
Fog, trees are invisible at 400 yards. The fog came
Cumulo-strati; cumuli and haze round horizon. —
Loose cumuli. bs
Id.
Scud and loose cumuli; streaks of cirro-stratus.
Loose cum. ; cir.-cum.-str.; cirri rad. from SW by *
Cirro-stratous scud. [very hazy on ho
Id.
Seud; drizzling rain.
Cirro-cumulo-strati ; woolly cirri. /
Tides id.: loose scud on 8.
Seud ; cirro-cumulo-str. ; both currents moving sloy
Masses of cumuli; cirro-cumulo-strati.
Tid 3 id.
Id. ; id.
Cumuli.
Haze and cirro-strati on horizon.
Very clear.
Streak of cloud on N. hor. ; mist in the valleys. C
Cirri radiating from NW. ; cum. and haze on N. hot
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, 8S. = 16, W. = 24. )
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. i
Two or three peals of thunder since 54 from 8. and SW.
Aug. 18 6,
:
bh in,
}22 || 30-123
121
101
091
\ 082
1s 076
10 079
1g || 30-040
20 047
2 || 039
0 || 30-019
2 || 29-991
4|| 965
6|| 951
8 || 950
10 959
18 || 29-920
20 | 927
22 921
oO 907
}o|| 889
14|| 870
16|| 851
8 || 865
10 882
18 || 29-908
20 |} 907
p2|| 922
ie)
co
oo
06 SHMRRNWO
ie)
—
or
8 {130-106
THERMOMETERS.
WIND.
Dry. | Wet. | Diff.
56-9
65-0
65-9
65-4
61-7
57-4
51-3
44:8
49-7
58-7
63-0
66-4
67-2
65-3
58-4
51-2
54-0
51-6
40-1
39-7
2-9
6-4
7-3
8-2
4-7
0-4
Maximum
force in |Prom
1D
0-2) 0-1
Clouds,
Se. : C.-s.: Ci.,
moving
from
pt. pt.
|
ane
16:
20:20:
:20:
: 212
LOK :
SG
Datty METEOROLOGICAL OBSERVATIONS, AuGusT 24—31, 1846.
Sk
y
clouded.
1-0
he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H. = 8, 8S. = 16, W. = 24.
tions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. ‘
} \Aug. 254105 5m, A very brilliant meteor was seen moving from about 6 Herculis to Arcturus, exploding about 2° N. of Arcturus ; its
ameter was about 10’ or 12’ ; it was of a bright white light, leaving a train of reddish sparks ; its form changed rapidly during its course
| |d after its disappearance, a small red ball continued for 5° or 6° in the same direction ; the meteor moved over about 30° in about 35.
391
Species of Clouds and Meteorological Remarks.
Detached masses of cumuli on hor. ; patches of cirri. ©
Scud and cumuli; cirrous haze.
Id.; woolly cirri, cir..cum., and cir. haze; solar
Scud ; cirro-strati and cirri. C°) [halo.@
Woolly cirri, cirro-cumuli, and cirro-strati.
Cirro-strati and cirrous haze.
Clouds and haze on horizon ; stars rather dim.
(0)
Cirro-cumulo-strati ; very misty. ®
Td. 5 mist clearing off. 1S)
Id. ©
Cumuli. oO
Id. oO
Id.; very hazy round horizon. ©
Id. ; id. (9)
Cirro-strati and cirrous haze on horizon.
Haze on horizon.
Woolly and mottled cirri; fog, objects invisible at 200
As before. @ [yards.
Cirro-cumuli. (s)
Cum.; cir.-cum.; the motion of the clouds is scarcely
Id., moving very slowly. Oo [perceptible. ©
Id. ; woolly cirri. ©
Seud, cumuli, and cirro-cumulo-strati ; woolly cirri. ©
Thick cirro-stratous scud.
Scud.
Woolly cirri, cirro-cumulo-strati and cir.-str.; misty.©
Cirri and haze on horizon. oO
Cirri and cirro-strati, chiefly to S. ; cum. on N. hor. ©
Woolly cirri; large piles and ranges of cum. on N. and
Cumuli ; cirri. [S. hor.©
Woolly and mottled cirri; cumuli round horizon. ©
Cumuli and cirri. (0)
Cirro-strati and cirri.
Overcast.
Homogeneous ; misty.
Cirro-stratous scud and cirro-stratus.
Thick cirro-stratus and scud.
Id.
Masses of scud and loose cum. ; cir. haze; solar halo.
Masses of scud ; cirro-stratus.
Cirro-cumuli ; patches of cumuli; cirrous haze.
lick, 2 cirrous haze.
Cirro-strati and haze near horizon.
@
8
Masses of loose cumuli; cirri and cirrous haze. (0)
Cirro-stratous scud and wavy cirro-strati.
Scud ; cirro-strati.
Id. ; id.
Thick scud ; rain!
Seud and cirro-strati; rain!
Scud ; cirro-strati; cirrous haze; solar halo. @
Scud and loose cumuli; cirro-cumulo-strati; cir.-str.
Id. »)
Id. »)
Woolly cirri, cum., and haze to E.; patch of scud to N.©
The
392 Daity METEOROLOGICAL OBSERVATIONS, AUGUST 31—SEPTEMBER 7, 1846.
Gott BaRo-
Mean METER
Time at 32°
dehy in.
31 20 || 30-122
22 121
1 0 106
72 086
4 072
6 076
8 082
10 078
18 || 30-038
20 047
22 056
210 043
2 041
4 029
6 023
8 034.
10 046
18 || 30-021
20 032
22 051
3 0 044
2 039
4 036
6 019
8 038
10 045
18 || 30-065
20 080
22 080
4 0 074
2 062
4 043
6 037
8 035
10 028
18 || 30-000
20 009
22 || 30-006
5 O || 29-986
v2) 955
4 929
6 905
8 904
10 903
223|| 29.790
618 || 29-685
20 689
22 690
7 0 680
2 661
4 626
6 597
8 597
10 591
THERMOMETERS.
Dry.
65-5
59-0
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, 8. = 16, W. = 24. a
Wet.
61-6
57:5
Diff.
Maximum
force in
J
e eeoo09909
“Oo Pp Bee nypneeeee
Om:
motions of the three strata of clouds, Sc. (scud), C
WIND.
From
pt.
20
25
16
24
21
23
22
24
20
20
.-8. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Clouds,
Sc.: C.-s.: Ci.,
moving
from
pt.
pt.
or
Sky
clouded.
Species of Clouds and Meteorological Remarks.
Woolly cirri and haze round horizon.
Cumuli and cirri near horizon.
Cumuli; cirri
IGES id.
Seud and cumuli; woolly cirri; cirro-strati.
Scud ; cirro-strati and cirro-cumulo-strati ; cir. b ae.
Cirro-strati and cirrous haze. 4
Cirro-strati and cirro-cumulo-strati.
Cir.-cum.-str.; cir.-str.; hazy on hor.; scud on Cheviot
Cirro- cmerrellesieeiele ahd cirro-strati.
Patches of scud, cirro-strati, cir.-cum. and cir. haz
Patches of scud and cumuli, woolly cirri, and cir.-str
Scud, cirro-strati, and cirrous haze. ‘
Id., id., and cirro-cumuli.
Id. ; cirro-cumuli; cirro-strati.
Masses of scud ; cirro-strati; cirro-cumuli.
Cirro-strati.
Seud ; cirro-strati.
Cirro-stratous scud ; sheets of cirro-strati; cir. haze
Masses of cirro-stratous scud ; milky cirrous haze.
Cirro-stratous scud ; woolly cirri; cirrous haze.
Id. i
Id? cirrous haze. e
Seud.
Masses of scud ; cirrous haze,
Ids: id.
Cirro-stratous scud.
Id.
Seud ; cirrous haze.
Id.
Dense mist, objects invisible at 500 yards.
Id., id. at 3 a mile.
Seud and cirro-strati; remains of a fog.
Loose cumuli; cumuli and haze on horizon.
IGS id.
Scud and cirro-cumulo-strati ; much haze.
ides id.
Cirro-strati and thick haze on horizon.
Id.
Seud and loose cumuli.
Cir.-cum.-str. ; cirro-strati ; foggy ; mist in the
Cirro-strati and fog round horizon.
Scud and loose cumuli.
Id.
Cumuli and cumulo-strati; much haze.
As before ; very electric-looking to E.
Cirri and cirrous haze; diffuse lunar corona.
we oO
a
i
58-4
61-7
64-9
65-0
62.5
66-5
63-8
57:0
53:8
49-8
56-5
62-4
64:7
66-9
62:7
62-6
54:0
46-7
39-2
45-4
55:6
61-6
62-6
64.4
62-7
55:6
50-5
53-4
56-8
63-0
68-6
72:8
73-0
69-3
63-1
59-2
56:0
59-5
64°7
68-8
67-7
65:0
59-9
57-6
57-0
59-0
46-8
51-2
60-7
67-0
67-0
69-0
68-5
60-4
57-4
59-9
60-9
59-5
64:3
59-1
THERMOMETERS.
Dry. | Wet. | Diff.
1
na
|
ay AG, AND MET. oBs. 1846.
WIND.
Maximum
force in From
10™
16
28
28
Clouds,
Sc. : C.-s.:Ci.,
24:
26:
PALE
26:
26:
B25) ©
2a:
aon & |
Sky
clouded.
Daity METEOROLOGICAL OBSERVATIONS, SEPTEMBER 7—14, 1846. 393
Species of Clouds and Meteorological Remarks.
Homogeneous; misty.
Scud and cumuli; misty. (2)
Woolly cirri and cirro-strati; scud and loose cumuli. ©
Seud and thick cirro-stratus.
Id. ; slight rain since 14,
Loose cumuli; cumulo-strati and cirro-strati. (0)
Id. ©
Cirro-strati ; cirro-cumuli and cirrous haze.
Cirro-strati and cirri. >
Cirro-stratous seud ; woolly cirri and cirro-strati.
Woolly cirri and cirro-stratus. e
Scud and loose cumuli; woolly cirri and cir.-str. (2)
Id. ; nel, § solar
Scud and loose cum. ; cir.-cum. and cir.-str. [halo.©
Scud ; cirro-strati and cumulo-strati.
Id. (0)
Cirro-strati to SE.
Patches of cloud to E. y
Woolly and linear cirri on horizon; mist in the valleys.
Id.
Cirri. ©
Patches of scud. ©
Id. (0)
Woolly and mottled cirri. 9)
Woolly cirri and cirro-strati.
Cirri and cirro-strati. y
Cirro-cumulo-strati and cirro-strati.
Cirro-stratous seud ; slight drizzling rain.
Cirro-strati and cirro-stratous scud.
Cirro-strati and cirro-cumulo-strati.
Masses of cirro-strati; woolly cirri.
Cirro-strati ; cirro-cumuli and woolly cirri.
Cirro-strati; cirri; cirrous haze.
Cirro-strati and woolly cirri.
Cirro-strati and cirrous haze; faint aurora.
OOO
Seud ; woolly cirri.
Cirro-cumulo-strati and cir.-str. ; motion imperceptible.
Id., moving very slowly.
Woolly cir.-cum.-str.; cirro-cumuli; detached cumuli.©
Scud and loose cumuli ; cirro-strati.
Seud ; cirro-cumnulo-strati.
Uniform mass of scud and cirro-stratus.
Id.
Overcast.
Misty scud ; cirri; fog in the valleys.
Fog on horizon. ©
Loose seud.
Scud and loose cumuli.
Scud, cumuli, and haze. ©
Cumuli; very hazy on horizon. oO
Scud and cumuli; much haze. (S)
Seud.
2 direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, H.= 8,S.=16, W.= 24. The
ns of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
t. 940, Observation made at 0» 5™,
ide Bh i
14 10 || 30-023
18 || 30-012
20 020
22 028
15 0 019
2 || 30-005
4 || 29-990
6 983
8 997
10 998
18 || 29-985
20 || 30-006
22 || 30-001
16 0 | 29-991
2 967
4 942
6 925
8 932
10 914
18 || 29-847
20 847
22 849
C7 0 829
2 808
4 792
6 780
8 789
10 792
18 || 29-799
20 793
22 795
18 0 790
2 754
4 738
6 708
8 706
10 699
18 || 29.584
20 560
22 527
19 0 492
2 461
4 444
6 423
8 415
10 402
223|| 29-367
20 18 || 29-531
20 557
22 572
21 0 578
2 570
4 556
6 566
DAILy METEOROLOGICAL OBSERVATIONS, SEPTEMBER 14—21, 1846.
THERMOMETERS.
Dry. | Wet.
57-1
49.3
57-2
62-7
66-5
68-6
67-5
67-0
58-9
51-5
46-2
50-1
58:3
57-2
55:0
56-7
50-0
49.0
0-1
0-1
SS BSS SOE OS)
won RFK ell Oe oc FF eK OF
WIND.
Maximum
force in
1O=.
From
eo bo
—— bo
ADEAOwWNW CNWOWMS
Clouds,
Se. : C.-s.: Ci.,
moving
pt.
26:
28:
oo
ons |
from
pt.
~30):
pt.
Sky
clouded.
| Cirro-cumulo-strati ; cirrous haze.
Species of Clouds and Meteorological Remarks
u
Scud.
Misty scud ; cirro-strati; mist on the ground. —
Cirro-cumulo-strati and cirro-strati; fog on horiz
Seud.
Seud and eumuli.
Idx; hazy.
Id. ; woolly cirri; very hazy. a
die sheets of cirri and cirro-strati.
Sheets of cirro-cumuli.
Haze on horizon; stratus in the valleys.
Cirro-cumulo-strati ; woolly cirri; fog, objects inyi
Thick woolly cirri; fog in the valleys. [at 300
Loose cirro-cumulo-strati. 2
Id.
|| Cirro-stratous scud.
Id.
Cirro-cumulo-strati.
Cirro-stratous seud.
vd hazy ; clouds nearly uniform.
Id.
Dark.
Seud ; woolly cirri. SI x
Cirro-cumulo-strati and cirro-strati on E. horizon
Loose cumuli. ;
Id. %
Id. d
Cirro-cumulo-strati. 2
Id.
Patches of cirri.
Seud.
Seud.
Cirro-cumulo-strati and seud.
ip. +
——
eS
Scud and cirro-stratus ; haze. :
Thick covering of cirro-stratus ; much haze.
Take ids
Densly overcast ; rain!
Td. id.
Id. ; very light rain.
f Masses of loose ecumulous seud ; cirro-cumulo-strati;
\ moving very slowly.
Cirro-stratous scud ; sky to E.; slight drizz
Cirro-cumulo-strati and cirro-strati. -
Cumuli ; cirro-cumulo-strati to SW.
Id.
—
— an
iteey
Seud and eumuli.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, S.= 16, W. :
motions of the thr¢e strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Sept. 174. The most of the swallows seem to have gone off to-day.
THERMOMETERS.
WIND.
f |] at 32°. || Dry. | Wet. | Diff.
J i in. te
413 | 29-585 | 51-3] 48-9
588 || 50-6] 48-6
| 29-561 || 35-0/ 34-7
Di 574 || 41-2) 41-1
575 || 51-0| 48-6
560 || 57-0| 51-5
523 || 58-7| 53-8
363 |) 47-3] 46-5
— 338 |) 53-2) 51-7
305 || 53-4] 52-6
296 || 52-0] 51-4
Maximum
force in |Ryom
iD
10™
=
BE DO OD CO OD
Clouds,
Se. : C.-s.:Ci.,
moving
from
pt. pt. pt.
—:14:—
W138 =: —
—:14:—
8:—:—
11:—:—
9:—:—
Sed; rain2—5 since 22h,
ae ept. 231 18h, Observation made at 18» 30™,
Sky
clouded.
DaiLy METEOROLOGICAL OBSERVATIONS, SEPTEMBER 21—28, 1846. 395
Species of Clouds and Meteorological Remarks.
Seud.
Id.; stars dim.
Cir.-cum. and cir.-str. ; str. in the valleys ; much dew.
Cir.-cum.-str.; cir.-str.on N. & E. hor.; str. clearing off. ©
Loose cumuli and cirro-cumulo-strati. ‘ ©
Seud ; cirro-cumulo-strati and cirro-strati. ©
Id. ; woolly cirri to W. ; cumulo-stratito N. and E.©
Cirro-strati and scud.
Scud and cirro-cumulo-stratus.
Cirro-strati and scud.
Seud ; cirro-strati.
Id. ; “mass of cirro-stratus ; rain”
Id.; dense uniform cir.-str.; stormy-looking ; rain!
Id.; dense cirro-stratus. [commenced at 22 10™,
Id.; cumuli; cirro-stati; rain till 08 50™.
Id.; dense cirro-stratus ; distant thunder to E. ; rain!®
Id. ; id. ; cum. on hor. ; drops of rain.
Cirro-strati ; slight fog.
Fog.
Fog, objects invisible at 200 yards.
liek, id. 400 yards.
Id., id. 13 mile.
Misty scud; cumuli and cirro-strati ; fog on horizon.
Cir.-cum.-str. ; cum.-str. on hor. ; very hazy on S. and
Thick scud and cumuli ; cirro-cumulo-strati. [E.hor.©@
Misty scud ; fog coming on.
Misty.
Id.; very dark.
Seud and cirro-stratus.
Id.
Cirro-cumulo-strati ; cirro-strati; cumulo-strati to E.
Cumuli; cirro-strati and cumuli.
Cirro-stratous scud and cirro-strati.
Seud and cirro-cumulo-strati.
Seud ; loose seud and cumuli.
Id.
Seud and cirro-strati.
Seud and cirro-strati.
Thick seud and cirro-stratus.
Td. ; rain!
Thick cirro-stratus ; id.
Cirro-stratous scud and cirro-stratus ; fog on horizon.
Seud ; cumuli; cirro-strati.
das.) gad: id. ; rain!
Scud and cirro-strati; stars dim.
Id. ; clear in zenith.
Scud and cumuli ; cirro-cumulo-strati.
Cirro-strati ; stratus in the valleys.
Cirri ; id.
Cirro-strati and cir.-cum.-str. ; scud lying on Cheviot.©
Loose scud ; dense mass of cirro-stratus and cir. haze.
Scud ; dense mass of cirro-stratus ; rain!
Id. ; rain?
Ppt. 224105. There is evidently a bright aurora, but it is almost wholly obscured by clouds.
ept. 2340, About 235 the wind changed for a short time, the clouds moving from WSW., shortly afterwards two currents were ob-
396 DaILy METEOROLOGICAL OBSERVATIONS, SEPTEMBER 28—OcTOBER 5, 1846.
Gott. BaRo-
Mean METER
Time. || at 32°.
Gk it in.
28 6 || 29-295
8 280
10 256
18 || 29-105
20 092
22 075
29 0 046
2 050
4 027
6 069
8 063
10 149
18 || 29-383
20 435
22 478
30 0 491
2 516
4 D2,
6 547
8 572
10 581
18 || 29-563
20 573
22 593
1 0 578
2 586
4 607
6 638
8 666
10 676
18 || 29-621
20 616
22 583
2 0 517
2 453
4 387
6 363
8 348
10 324
18 || 29-384
20 413
22 423
3 0 433
2 435
4 445
6 466
8 496
10 505
23 || 29-472
418 || 29-322
20 326
22 303
5 0 Pa i
2 241
THERMOMETERS.
61-6
59-3
. | Diff.
CE EN OU ES Ot Ou ewe
WOHMwWHE RS HHOHAUGDSHA AS
to
~_
0-4
WIND.
Maximum
force in |Prom
1h,
10™,
Seo oto ooo SSS > =]
Whee OFHwWwWHeEHor
Sce.: C.-s.: Ci.,
Clouds,
moving
pt.
10:
24:
29:
from
pt.
pt.
Sky
clouded.
Species of Clouds and Meteorological Remarks,
!
Scud ; rain®
Id.; rain?—
Id.; rain
Seud ; rain”? f
Loose scud near horizon; uniform mass above; rai
Scud ; uniform mass above ; rain
ish rch, 2 rain?
¥
Cirro-strati.
Seud ; cirro-strati.
Id.; cirro-cumulo-strati. '
Id. 7
Scud and loose cumuli; woolly cirri.
lds; id. »
Cirri ; masses of scud and cumuli.
Cirro-strati and cirri. $
Dense mass of cirro-strati. 4
Cirro-strati and cirro-cumulo-strati. ‘
Seud. re):
Id.; cirro-cumulo-strati.
Id.; cirro-strati.
Id. ; cirro-cumulo-strati. a
ies id. 4
Seud and loose cumuli; cirri. =
Cirri. r)
Thin cirri and cirrous haze. v,
Id. dy
Cirri; cirro-strati; stratus in the valleys ; much d
Lars id. ; stratus. Ri.
Woolly cir.-cum. ; fog, objects invisible at 14 mile.
Tele stratus ; patches of scud on E, and S. hi
Seud and cumuli; woolly cirro-cumuli; haze on h¢
IGE = cirro-cumuli. v
Scud and cirro-cumulo-strati ; cirro-strati. K
A few patches of scud ; cirro-strati and stratus.
Cirro-cumulo-strati and cirro-strati; foggy on hor.
Cirro-strati on horizon. "
A few patches of cirro-stratus. a
Patches of scud; cirro-strati and haze. ie
Scud and cumuli; cumuli and cirro-strati. <
ik s cumulo-strati on E. hor. i
Cumuli; cirri.
Cirro-strati and haze on horizon. i
Id. i
Id. be
Cirro-stratus and haze. .
Seud ; cirro-stratus and cirrous haze. 6
Id. ; id. ¥,)
Loose scud ; cirro-strati and cir.-cum.-str. ; cir. hai
Scud ; cirro-strati. i
Id.; id. i.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. — 0, E. = 8, .S.= 16) Wee 24, 4
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. _ i!
»
DAILY METEOROLOGICAL OBSERVATIONS, OCTOBER 5—12, 1846.
WIND.
THERMOMETERS.
Maximum
Dry. | Wet. | Diff.|| force in
1», ;10™,
° 2 2 Ibs. | Ibs.
58-7| 56:4) 2-:3)| 1-3) 0-5
57-8 | 56-4| 1-4] 0-7} 0-1
55:9} 54-0} 1-9) 0-6] 0-2
56-0 | 54-0! 2-0|| 0-2) 0-2
56-0) 53-8] 2-2] 1-0) 0-4
55:9| 53-7] 2-2]) 0-8} 1-0
57-3| 54-3] 3-0|| 2-0/ 0-8
57-6|. 55-4] 2-2) 1-6) 1-7
58-4| 51-2} 7-2) 3-8} 2-0
56-1} 50-0! 6-1]| 2-3} 1-4
51-0| 47-6| 3-4|| 1-7| 0-2
49-8] 47-3} 2-5] 0-8} 0-4
49-0 | 46-8} 2-2)| 0-5} 0-2
46-9 | 45-6) 1-3]| 1-9} 0-4
47-8| 46-4{ 1-4|| 1-3) 0-4
52-8] 49-7| 3-1 || 2-1] 1-5
54-2} 49-7| 4-5 |) 2-3} 1-3
56:0] 50-2| 5-8 || 2:8] 0-7
54-6 | 49-6} 5-0} 2-5] 1-2
52-2) 47-7| 4.5|| 1-5} 0-3
49-7 | 48-2] 1-5] 2-3} 1-6
46-0 | 45-2] 0-8] 1-2} 0-2
46-7 | 45-4] 1-3] 0-9] O-1
47-1} 46-0} 1-1|| 0-6] 0-7
51-2} 49-2} 2.0}) 1-1] 0-8
54-2] 50-7] 3-5 || 1-6] 0-8
54-8| 50-4] 4-4] 1-7} 0-7
53:2) 50-2} 3-0]) 1-6] 0-7
51-0} 48-3) 2-7 || 0-8} 0-7
49-5 | 47-7| 1-8) 1-1] 1-0
48-0) 46-7| 1-3)| 1-0] 0-3
50-0} 48-7] 1-3 || 1-3} 0-3
50-1] 49-0) 1-1] 0-4} 0-3
52-4] 50-8} 1-6] 0-4] 0-1
51-7] 50-4|} 1-3 || 0-5] 0-2
50-9} 49-5| 1-4] 0-4} O-L
54-9| 54-0} 0-9 || 0-3} 0-2
58-2| 57-3} 0-9|| 1-5| 1-7
57:0} 54-8] 2-2)} 1-8} 1-0
56-0] 53-8} 2-2) 1-7] 1-3
54-9} 53-3} 1-6}| 3-5} 0-9
56-4} 55-2} 1-2] 1-1} 1-2
59-3 | 57-2} 2-1] 1-1) 0-8
58-0] 57-1} 0-9|| 2-0} 1-2
59-0 | 57-6} 1-4] 1-8} 0-7
60-0} 54-3) 5-7 || 1-6] 1-7
56-7 | 52-6} 4-1] 1-9] 0-6
54-7/ 51-2] 3-5] 1-0} 0-5
54:2} 50-6| 3-6 || 0-9} 0-4
50-3 | 49-7} 0-6) 0-6} 0-1
52-1) 51-6| 0-5] 1-7) 1-7
52-3} 51-8| 0-5) 2-1] 1-8
52-8] 51-9} 0-9|| 1-9} 1-4
53-3 | 52:0! 1:3! 3-1! 3-8
Clouds,
Se. : C.-s.: Ci.,
moving
from
5) 2
A —=——"||
Abe
Sky
clouded.
397
Species of Clouds and Meteorological Remarks.
Seud ; cirro-strati.
licl.e id.
Scud and cirro-cumulo-strati. yt
Id. yi
Seud and cirro-strati.
Seud ; cirro-cumuli.
Id.; cirro-strati.
Id.; cumuli and cumulo-strati; cirro-strati.
Sead and loose cumuli; cirro-strati.
Td.
Patches of seud; cirro-strati and cirrous haze.
Scud and loose cumuli.
Id.
Scud and cirri. yy
Cirro-strati and woolly cirri; cumuli on horizon.
Thick woolly cirri ; cirro-strati ; seud lying on Cheviot. |
Seud and loose cum.; woolly cirri; cir.-str. on hor. ©
Scud ; cumuli and cirre-strati; rain”?
Scud and cumuli; cirri and cirro-strati.
220.80 ©
Thick seud ; id,
Dark ; rain?°
Cirro-strati to N. yd
Scud and cirro-strati. y
Cirro-strati and cirrous haze. |
Cirro-stratous scud and cirro-strati; cirrous haze. @|
Seud ; cirro-stratus and cirrous haze; rain”?
Id. ; id. ; cum. on hor. @
lil (el, 8 id.
Loose scud; loose cir.-str.; dense cir.-str. in yariously-coloured and
Cir.-str. and haze on N. and E. hor. }- [contorted sheets.
Seud; cirro-strati and haze. y
Seud and cir.-str.; thin haze, causing a faint lunar
Seud ; cirro-stratus. [ halo. )
Loose scud ; dense mass of cirro-stratus.
iGhe 1dy- rain!
iG: id. [rain.
Seud ; cir.-str.; bank of white clouds to H.; drops of
Scud moving rapidly ; cirro-stratus.
Scud and cirro-strati.
Seud; cirro-cumuli; drops of rain.
Id.; cirro-strati; rain occasionally.
Id. ; id.
Icke id.
ils id.
Scud and cumuli; sheets of cirro-strati and cirri. ©
Seud ; bank of cir.-str. to E.; cir.-str. and cirri to W.
Scud and cirro-strati; principally to E.
Nak dark.
Send ; cirro-cumuli and cirro-strati.
Seud; rain”?
Id.; rain?
Nidas, idk
Id.; rain! @
MAG. AND MET. ops, 1846.
_ fe direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H. = 8,8. = 16, W.= 24. The
Mons of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
DH
398 Daity METEOROLOGICAL OBSERVATIONS, OCTOBER 12—18, 1846.
Time. at 32°. Dry. Wet.
‘der ne in. 2
12 2 || 29-433 || 51-0
4 493 || 51-9
6 554 || 49-2
8 619 || 49-0
10 686 || 44-5
18 || 29-786 || 43-7
20 814 || 43-9
22 834 || 45-7
13 0 812 || 47-6
2 801 || 47-8
4 781 || 47-6
6 745 || 44-8
8 698 || 41-6
10 642 || 40-5
18 || 29-244 || 41-6
20 || 29-115 || 39-5
22 || 28-956 || 40-6
17 0 263 || 53-8
2 258 || 55-6
4 269 || 53-5
6 282 || 53-2
8 306 || 53-8
10 333 || 52-4
49-0
47-1
THERMOMETERS.
Diff.
We
ooo sosossseS SSeoe°9
pore ee ON Oe <a) ee ee
Maximum
force in
Toms
ecoorres ©
me DOr OW =
WIND.
From
i=}
wo eo
oOorOCOrFOorF OCONNNNWF
w
wre
bone ©
_
is)
WWNHOFEFNNTIOOD ONKFKRWDADAWMDHD OBHW
to
om
22 ||
20
Clouds,
ww pS
hd.4
He He Or Or OD DD
pt.
SS
ah:
218:
Se. : C.-s. : Ci.,
moving
from
pt.
Sky
clouded.
| Seud.
D
Species of Clouds and Meteorological Remarks.
Seud.
| Id.; cir.-str. and cir.-cum.; parhelion seen about |
\' Ide
| Id.; dark.
eds rain!
Id.
| Id.; cirro-strati.
| Cirro-strati and cirro-cumulo-strati.
Scud.
Id. ; stars dim.
Scud; a few spits of rain.
Id.; rain! since 18 20™,
Id}; rain! =?
Id.; rain?
Id.; rain
Seud ; cirro-strati.
dss id.
Slight drizzle; very dark.
Very dark.
Seud; misty. "
Fog, trees invisible at 200 yards ; scud and cir.-st
Cirro-cumulo-strati and cirro-strati; foggy.
Large cir-cum.-str. and cir.-str. ; cum.-str. on hor.
Scud and cumuli ; id. @ ,
Id. 5 4
Cirro-cumulo-strati ; cumulo-strati and cirro-s
Seud and cirro-strati.
1G 5 misty.
Fog, trees invisible at 200 yards.
Id., id.
Id., id., 1 mile.
Misty scud and cirro-cumulo-strati ; cirro-strati,
Id; id. Md
Ee
Seud ; cirro-strati aud cirro-cumuli ; cumulo-stre
Scud; rain®®
Id.; misty.
Scud and cirro-strati near horizon.
Scud; slight mist.
Id. ; id.
Id.
Id.; drops of rain. he
Smoky scud, very low, moving rather quickly. —
Send. ; rain?
Ides ) ram
Id.; clear in zenith.
Uniform misty scud.
Seud ; rain!
Dense mass of cirro- ee
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= 8, 8.= 16, W. =
motions of the three strata of clouds, Se. (scud), C
Oct. 15418. Observation made ‘at 18% 15m,
.-S. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
BaRo-
METER
at 32°.
in.
29-335
323
314
302
295
258
29-201
225
227
215
193
192
172
149
29-126
28-828
748
679
625
585
582
587
613
613
3 || 28-667
697
736
763
779
802
847
Be 893
28-940
3 || 29-165
: 241
298
352
381
403
424
418
396
29-192
183
191
197
190
209
243
278
345
1
j
]
!
SHOonwo,!
=
SNWONSH CHORRNONSH
CO o>
—
706
t
i
i
{
4 oe
ba
DaAILy METEOROLOGICAL OBSERVATIONS, OCTOBER 19—25, 1846.
THERMOMETERS.
44-8
46-0
49-5
32-0
32-5
Wet.
39-3
37-5
37-5
39-9
41-0
43-1
45-3
46-7
43-7
42-5
43-2
44:8
46-7
31-7
32-5
|
aS ROP Sat
hows) owmpbhwiud
a)
4:8
qs
SS SESSSr HHS SSOSSS9O°OF HO
—=—rpo KF OF NMWOWOUOWN KR Ke WwWwWwWNrFK OO ON
oS
(ee)
WIND.
Maximum
force in |Prom
102.
1:3
17
Clouds,
Se. :C.-s.: Ci.,
moving
from
Si:
214:
22
28 :
Sky
clouded.
399
Species of Clouds and Meteorological Remarks.
Thick seud ; rain?
Scud ; cirro-strati and cirro-cumuli.
Id.; cirro-strati.
Id. ; id.
Clouds near horizon; stars dim.
Seud and cirro-stratus ; faint auroral light.
Seud and cirro-cumulo-strati.
Cirro-cumulo-strati and cirro-strati.
Cirro-strati and thin cirri.
Woolly cirri and cirro-strati.
Cumuli; woolly cirri.
Scud and cumuli; cirro-cumulo-strati ; cirro-strati.
Thick cirro-stratous scud.
Seud and cirro-stratus.
Id.
Dense clouds ; break to SE.
Seud; rain!
Id.; uniform mass of cir.-str. ; rain till 21 40™.
Id.; woolly cirro-cumuli.
Cir.-cum.-str. and cir.-str.; scud and cumuli on hor.
Seud ; cirro-cumulo-strati; cirro-strati.
Thick dark scud and cum.; at 6415™, a peal of thunder
Dark ; rain’? [was heard ; rain! ° after 64 20™.
Rain?
Seud.
Cirro-stratous secud and cirro-strati.
Seud ; cirro-strati; rain?
lglg id. ; cumuli,
Id. ; id. ; id.
Loose scud; dense cir.-str.; white seud on SE. hor.; rain!
Cirro-strati and scud.
Tas
Id.
Cirro-stratous scud.
Thin seud ; cirro-strati and cumulo-strati.
Thin cirro-stratous scud.
Id.
Scud and loose cumuli.
Scud; woolly cirri, radiating from N. and S.
Thick seud.
Cirro-strati and scud.
Id.
OOO
occasional showers.
OOO
Uniform cirro-stratus ; loose scud below near horizon.
Seud and loose cirro-stratus ; slight rain occasionally.
Id.
Cirro-stratous scud.
Id.
Id.
Rain? ; the wind and rain commenced about 9% 30™.
Seud and loose cumuli.
Cirri on E. horizon; mist on the ground.
Woolly and linear cirri; bank of cirro-stratito W. O
Observation made at 18» 10™.
he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, HE. = 8, S.= 16, W. = 24.
Mions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
194 18,
The
31
118
DaAILy METEOROLOGICAL OBSERVATIONS, OCTOBER 25—NoveEMBER 1, 1846.
681
670
29-644
29-608
THERMOMETERS. WIND.
Maximum
Dry. | Wet. | Diff. force in |From
14,|10™,
51-7 | 49-2) 2-5
52-2| 49:8) 2-4
51-6| 49-6} 2-0
51-8) 49-6} 2-2
51-9] 49-5] 2.4
49-4| 47-2| 2-2
OS SSS
SOME OoOnereoe meio whee
ran}
o
pt.
2B ©
20:
19:
19:
20:
ot:
234
Pe
20:
20:
eye
Clouds,
Se.: C.-s.: Ci,
moving
from
pt.
ro oo eo | oo
pt.
Sk
yi
clouded.
Species of Clouds and Meteorological Remarks,
Seud ; cirro-strati.
Woolly cirri and cirro-strati ; seud and cum. on hg
Loose cumuli; wooly cirri. {
Cumuli and cumulo-strati round horizon.
Seud and cirro-strati.
Clear ; slight fog on the ground.
Id.
Cirri on E. horizon.
Cirri and cir.-cum. ; stratus in the valleys ; hoar-frost
Cirro-stratus scud.
Id.
Id. ; cumuli to E.
thik woolly cirri.
Seud ; woolly cirri.
Seud and cirro-stratus.
Id.
Seud and cirro-stratus.
Cirro-cumulo-strati ; cir.-str.; cir. and cirrous haze,
Cirro-cumulo-strati and cirro-strati.
| Seud ; cirro-cumulo-strati.
Gk e id.
Id; id. and woolly cir.; hazy onh
Cirro-cumulo-strati.
Id.
Seud, cirro-strati, and cirro-cumulo-strati.
|| Seud and cirro-strati.
Id.
Cirro-cumulo-strati ; haze on horizon.
A. few clouds on S. horizon; much haze on ho
Cumuli and cirro-strati on horizon ; haze on ho
Id. ; id.
Cirri and cirro-strati near horizon ; haze on ho
Cirro-strati and cirri.
Band of cirro-strati to E.; misty.
Linear cirri on E. horizon ; stratus in the valle
Seud ; cirro-strati.
igs id. ; hazy.
Seud on horizon.
Scud and cirro-strati; woolly cirri.
Seud ; cirro-strati.
Patches of cirro-strati and cirro-cumuli.
Sheets of cirro-cumuli.
Seud and cirro-strati.
Seud ; cirro-strati; woolly cirri and cirrous haze.
Id. ‘
7
~ eae oe Sees
Id.; cirro-strati.
Id.; sheets of cirro-strati. ;
; uniform mass of cirro-stratus ; drops of ri
lich = id.
Id.; drops of rain.
Scud ; cirro-stratus.
Scud and cirro-strati.
hy we ey
bes
i mln
ee
The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E. = 8, S.= 16, W.
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
DAILY METEOROLOGICAL OBSERVATIONS, NOVEMBER 1—7, 1846. 401
THERMOMETERS. WIND. CL
ouds,
Maximum ga? e ee a Species of Clouds and Meteorological Remarks.
Dry. | Wet. | Diff.|) forceim |From|| pom”
[ 1h, ;10™,
i: |
4 h in. 5 ¢ e Ibs. | Ibs. | pt. || pt. pt. pt 0—10.
120 || 29-611 | 49-8} 47-3) 2-5] 0-8/ 0-5) 18 | 16:—:— 9-5 || Cir.-str. seud ; cir.-str.; scud on Cheviot ; clouds tinged
22 617 | 51-1| 48-1} 3-0} 1-0| 0-4) 18 | —:15:—J| 9.0 || Cirro-strati and cirro-cumuli. (9) [red to K.
| 0 626 || 52-7/| 49-1] 3-6] 1-9] 0-9} 16 |} 17:15 :— 8-0 || Seud; cirri and cirro-strati.
12 599 || 54-0) 50-1| 3-9] 1-2} 0-8; 16 || 16: —:—J| 9-0 Id. ; id. (2)
14 586 || 50-7| 47-8| 2-9] 2.4] 2:1] 16 |/17:16:—] 9-5 || Id.; ddl; hazy round horizon.
16 || 598 | 51-0| 48.0] 3-0] 1-6] 1-7| 16 ||17:17:—-| 9-5 |] Scud and cirro-cumulo-strati.
i: 585 || 50-3] 47-6| 2-7] 1-7| 1-1] 16 9-0 Id.
B 570 || 50-4] 48-0} 2-4 |) 2.2) 1-0) 16 10-0 Id.
as 51-3} 50-0} 1-3) 1-5} 0-1} 20 | 17:17:—J| 7-5 || Scud and cirro-cumulo-strati.
20 49-2} 47-6| 1-6]| 0-1] 0-1} 23 |} 18:18:— 6-0 Id.
22 48-0| 47-0] 1-0 || 0-1] 0-0) 16 |, 18:—:—J]} 1-0 || Seud and loose cumuli. ©
10 714 || 53-3] 50-4] 2-9] 0-3] 0-1] 16 || 18:—:—|| 8-5 || Masses of loose cumuli near the hor.; woolly cir.-str.
2 717 | 53-4| 49-6| 3-8 || 0-4] 0-3] 16 9-8 || Thick cirro-stratus.
14 704 | 53-0] 49-0} 4-0]| 0-5] 0-1}| 16 || —:18:—]| 10-0 Td.
6 693 | 50-8} 48-9} 1-9]| 0-2] 0-1| 10 10-0 || Thick scud ; slight rain.
| 8 667 || 54-1) 52-2) 1-9]| 1-4/ 0-7] 16 ||18:18:—J|| 5-0 || Scud and cirro-cumulo-strati. y
0 654 || 53-0| 51-5| 1-5|| 1-8] 1-5|-18 3-0 Id. y
{8 || 29-722 | 48-3] 46.3| 2-0) 2.0] 0.3] 16 0-2 || Cirro-strati on W. horizon. >
20 714 | 47-9| 46-2] 1-7]| 0-4] 0-2] 16 2.0 || Cirro-stratus and cirrous haze.
p2 731 || 52-7) 50-3) 2-4]) 1-7) 1-0} 16 2.0 || Clouds on horizon. ©
oO 735 || 55-8} 52-3) 3-5]) 1-8] 1-3] 16 || 16:—:—J| 7-0 || Scud, loose cumuli, and sheets of cirro-strati. ra)
PA 713 | 56-0] 52-5] 3-5]) 1-3) 1-1] 16 || 16:—:16] 3-5 idles Gls & woolly cirri. ro)
4 710 || 54-7] 51-6) 3-1|| 2-7| 0-9) 16 || 17:—:— || 10-0 Td: 5 rain??
|6 || 714 || 54-0| 52-0| 2-0] 1-2] 0.8] 14 10-0 || Id.
18 727 || 53-6| 52.2] 1-4|| 0-8] 0-2} 16 9-5 || Id.
0 758 || 52-7) 51-9} 0-8] 0-5] 0-0] 18 10-0 || Scud and cirro-strati; rain”?
8 29-888 | 45-9! 45-5] 0-4] 0-5] 0-1] 16 9-5 || Cirro-strati and cirrous haze; lunar halo. }
0 922 | 41-5| 41-3] 0-2) 0-1] 0-1) 0 4-0 || Cirri and cirrous haze; mist in the valleys.
12 935 || 46-4] 45-4] 1-0) 0-1| 0-0} 2 || —:—:16] 4-0 || Woolly cirri. ro)
HO), 941 || 50-6) 49-0/ 1-6] 0.1) 0.0] 4 }—:—:16] 7-0 Id. (o)
}2]} 928 | 52-6} 50-0] 2-6] 0-1| 0-1] 6 ||—:—:18|| 5-0 Id. ©
140 906 || 53-0} 50-6| 2-4 || 0-3] 0-5} 12 || —:—:18 9-0 Id. ; haze on horizon. e
16) 899 | 49-4) 47-6] 1-8] 0-5] 0-3] 14 | 16:—:—|| 7-0 | Scud; cirro-strati.
\s 897 || 52-0| 50-0| 2-0} 0-8| 0-5} 16 9-8 || Id.
10}} 897 || 53-2] 51-8] 1-4] 0-6] 0-1] 16 10-0 || Scud; slight drizzle.
\s 29-892 || 52-8) 51-3] 1-5]| 1-1] 0-9| 16 9-5 || Seud, eirro-strati, and woolly cirri; lunar corona. — }-
07 912 | 49-5| 47-7| 1-8] 1-3} 0-3} 16 || —:18:— 9-0 || Cirro-stratous scud; woolly cirri and cirrous haze.
be 922 || 50-3] 48-0} 2-3 || 1-7] 0-3) 14 |} 15: 16:—J| 10-0 || Seud; cirro-strati; cirrous haze.
30 j 925 || 51-5} 48-4] 3-1] 0-8; 0-1} 20 || —:16:—J] 10-0 || Cirro-strati and cirrous haze.
2 ; 53:4} 49-7} 3-7]| 1-1] 0-2} 16 || —:17:—]| 9-8 || Cirro-strati and cirro-cumuli.
4 | 49-4| 47-4] 2-0) 1-5} 0-2} 2 ||14:17:—| 9-0 || Thin scud; woolly cirri and cirro-strati.
6 46-3} 44.5] 1-8] 0-4] 0-3} 12 9-0 || Cirro-strati ; cirrous haze.
2) | 46-4| 44.2] 2-2] 0-7} 0-1] 8 9-8 Id. ; id.
|| 45-6| 43-7| 1-9|| 0-3] 0-2] 14 9:5 Ids; id.
44-7| 43-0| 1-7|| 0-9] 0-1] 18 9-5 || Thick cirro-stratus and cirrous haze. )
42-0} 41-3] 0-7 || 0-1} 0-1} 18 9-5 Id.
45-0} 43-8} 1-2}| 0-1] 0-0} 20 || —: 20:—J|| 7-0 || Cirro-strati, cirro-cumuli, and cirri.
50-3| 47-2} 3-1} 0-3] 0-2) 18 || 20: —:—|| 10-0 || Patches of ragged scud ; dense cirro-stratus.
52-2) 49-0} 3-2] 0-3} 0-3} 16 || —:22:—J]| 8-0 || Cirro-cumulo-strati. ra)
51-2} 48-2] 3-0|| 0-4] 0-2] 22 || —:22:— || 6-0 | Id. ; haze round horizon. ro)
48-6) 47-2] 1-4] 0-1] 0-0} 18 9-8 || Seud and cirro-cumulo-strati.
48-1| 47-0} 1-1|| 0-0) 0-0} 16 5-0 Id. ; clouds breaking up.
Ps 48-6| 47-7} 0-9|| 0-1} 0-0] 24 10-0 | Id.
2330-174 | 50-7! 49-6! 1-11] 0-0] 0-0 10-0 || A uniform mass of cloud.
y
« he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.= 8,8.=16,W.= 24. The
: t ons of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Na ‘
3
MAG. AND MET. oss. 1846. 51
By
.
THERMOMETERS. WIND.
Eee 2 ere Clouds,
Maximum Se.:C.-s.:Ci.,| Sky :
Wet. | Di force in moving _||clouded. Species of Clouds and Meteorological Remarks
] ; from ;
°
pt. pt. pt.
, Mass of cirro-stratus.
Id.
Misty uniform mass of clouds.
Id.
Misty loose scud.
lid: hazy on horizon.
Thin misty scud.
Id.
Id.
Mist, objects invisible at 100 yards.
; Id.
wpe
ORAARNONOAF
Gy SIS a tS SS)
OwWNRoOWooO
a few patches of cloud to S.
diss id.
Cirro-strati and haze on horizon.
Haze on horizon.
tds slight fog coming on.
Cirro-cumulo-strati.
Seud and cirro-strati on S. and E. horizon ; misty
Cirro-stratous scud.
Scud ; mass of cirro-stratus.
: id.
ee SS SPSS SB SOS
wwe COO CO mS Be i
Very dark.
Homogeneous.
Id.
Id.
Td.
Td.
Id.
. : -0| 26 : Id.
38.3] 1. : : 8 : Id.
NO: ee SN Nine eae
KO pPwWwWewWNOaAntoe
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, S.= 16, Ween
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. :
q DaiLy METEOROLOGICAL OBSERVATIONS, NOVEMBER 14—21, 1846. 403
| [, THERMOMETERS. WIND. loud,
See |) acimam| (Se: C-s:: Ci. sky : :
i I a =a A) aging) encore ae moving —_||clouded. Species of Clouds and Meteorological Remarks.
ef} . ° et. iin.
h| ‘ 1h, 10m, ate
| ——|_____—
yin. ° ° ° || Ibs. | tbs, | pt. || pt. pt. pt. |] oo.
| 30-028 || 40-6! 39-5] 1-1]] 0-1] 0-0 10:0 || Homogeneous.
B 99-918 || 34-7| 33-9} 0-8 || 0-4) 0-1] 14 2:0 || Patches of scud and cirro-strati. y
) _ 914 || 40-0} 38-2; 1-8] 0-1] 0-1] 2 7-0 || Cirro-strati and patches of seud.
2} ©=- 908 || 42-5) 40-3} 2-2] 1-8) 0-4) 16 || 14:16:—| 3-0 | Loose seud; cirro-strati and woolly cirri. ‘S)
) | 875 || 46-0) 43-0) 3-0] 1-3) 1-5} 16 || 14:—:—)|| 4-5 |] Seud ; cirro-strati and cirrous haze. (0)
i 836 || 46-9) 43-2] 3-7] 4.6] 2-3] 14 || 14:—:—| 7.0 Id.; woolly cirri and cirrous haze. 6
i) ©6783 || 45-2| 42-3) 2-9] 2.4] 2-2] 14 | 14:—:24|| 7-0 | Ia; id.
5 | 761 || 41-3) 38-8| 2-5] 2-5] 0-7| 14 2.0 || Id., and cirro-strati.
hi) 764 || 42-2) 39-8) 2-4] 2-8] 1-8} 14 3-0 Id.
| 757 || 41:5| 39.2} 2-3] 3-2] 0-3) 14 5-0 || Seud and cirro-strati.
29-524 || 44-3] 42-.9| 1.4] 1-6/ 0-2 14 9-0 | Thin clouds; slight shower.
| 502 || 45-6] 43-9| 1-7] 0-4) 0-2] 20 10-0 || Patches of scud; dense cirro-stratus.
} 491 || 45-3} 43-8) 1-5] 1-9] 0-3) 18 10-0 Tay; id.
| 448 || 48:7} 46-6| 2-1 || 1-9} 0-8| 16 || 16: —:—/]| 10-0 || Seud; dense mass of cirro-stratus.
|} 416 || 48-8| 46-7} 2-1] 1-8] 1-7} 16 | 17:—:—J]| 10-0 Il. = id. ; drops of rain.
| 420 || 52-6| 50-4} 2-2) 2-0) 0-9) 17 ||} 18:—:—|| 10-0 Tides id.
]/ 456 || 50-7; 49-0; 1-7]) 1-0) 0-2) 18 9-9 || Scud and cirro-strati.
| 48-6] 47-1) 1-5) 0-3} 0-2| 18 3-5 Id; auroral arch.
1 | 48-0| 47-0) 1-0] 0-6} 0-4) 18 9-8 || Seud; slight drizzling rain.
it 45-3] 44-0] 1-3] 0-7| 0-2| 26 1-0 || Masses of scud.
45-0| 43-8) 1-2) 0-6] 0-3) 20 3-0 || Seud.
46-6| 44-9| 1-7]| 0-6) 0-4] 18 0-5 || Patches of seud ; cirro-strati and cirrous haze on hor. ©
50-7| 48-0} 2-7 || 1-6] 1-3} 18 ]}—:20:—J| 4.0 || Cirro-cumulo-strati; cirro-strati. ©
51-5| 48-3] 3-2] 0-9] 0-7} 18 || 20:—:— 9-0 || Scud ; id.
50-7 | 47-9| 2-8) 1-7| 0-5) 16 || 20:—:—J]| 9-0 Id.
50-0 | 47-1] 2-9] 1-3} 0-8) 16 7-0 Id.
49-5 | 47-2| 2-3 || 1-5) 1-0) 18 8-5 Id.; drops of rain.
48-6} 46-3} 2-3 || 0-9) 0-2} 18 8-5 Id.
45-7| 44-3) 1-4|| 1-4) 1-0] 18 10-0 || Scud ; slight drizzle.
44.3} 43-3} 1-0|| 1-4| 0-3) 18 | 22:—;— 3-5 Id. ; cirro-strati.
46-1} 44-6) 1-5] 1-2} 0-8} 20 |} 21:—:—|| 2-5 || Scud aad loose cumuli.
49-2) 46-0| 3-2]| 1-8] 2-6} 20 || 22:—:— 1-0 Id. ©
49-7| 45-1] 4-6|/ 2-9] 1-2) 21 ||92:—:22]) 92.0 Id. ; mottled cirri. (0)
47-2| 44.1] 3-1] 2-3} 0-7} 18 1-5 || Patches of scud ; woolly cirri. (0)
45-1| 43-3] 1-8]] 1-3] 0-3} 18 3-0 || Scud; cirro-strati.
47-8| 45-5| 2-3 || 2-0} 1-1] 18 1-0 Id.
49-4| 46-5) 2-9]) 2-2| 3.3] 18 3-0 Id.; a flash of lightning to SW.
49-6| 47-0) 2-6|| 4-2} 0-6| 15 9-0 || Scud; cirro-strati.
48-8} 46-5) 2-3 |) 1-8] 2-7| 16 10-0 lil id. ; drops of rain.
48-6| 46-3| 2-3|| 3-4| 2-2] 15 /14:—:—|/ 10-0 || Ia; ia; rain
49-0} 47-0} 2-0]| 5-2] 2-5) 14 | 14:—:—|) 10.0 Id. ; id,
51-0} 48-0) 3-0]| 4-4] 2-5] 14 ]117:15:—|| 9-8 Id., two currents.
49-8} 46-3| 3-5] 3-8) 2-0] 13 || 14:—:—-|| 10-0 Td.
47-9| 45-8| 2-1] 4-5) 4-1] 15 | 10-0 Id.; slight rain.
50-0| 49-0| 1-0] 5-1] 4-6} 18 10-0 ligt? id.
48-6} 45-1] 3-5 || 3-2) 1-0} 20 10-0 Id.
44-9 | 42-5) 2.4]| 5-8} 2-2) 19 3-0 || Seud.
43-1} 40-5| 2-6} 2-7) 1-7| 20 1-0 || Patches of scud ; cirro-strati.
44-6 | 42-2) 2.4|| 1-6| 0-9} 20 |—:—:21|| 3-0 || Woolly cirri; scud to W.; scud and cir.-str. on hor.©
46:9| 43-7| 3-2] 1-7| 0-9| 21 ||22:—:—l]| 4.5 || Seud; woolly cirri and cirro-strati. (0)
46-3| 42-8| 3-5 || 1-6] 0-6] 19 || 21:—:— 5-0 || Scud and cumuli; woolly cirri. oO
47-2| 44-2) 3-0]! 0-7} 0-3] 18:°}20:—:—|] 8-0 || Scud.
42-9) 41-9} 1-0] 0:4] 0-5) 16 4-0 Id. and cirro-strati. »))
44.0| 42-6] 1-4]| 0-5] 0-2] 18 10-0 || Dark; rain?
Gott Baro-
Mean METER
Time at 32°
ds hs in
2110 || 29.047
223|| 28-965
22 18 || 29-379
20 414
ye 444
23 0 441
») 423
4 401
6 384
8 370
10 320
18 || 29-177
20 204
22 228
24 0 248
2 262
4 283
6 312
8 369
10 359
18 || 29-323
20 289
22 273
25 0 240
2 185
4 131
6 088
8 || 29-016
10 || 28-952
18 || 28-829
20 851
22 || 886
26 0 916
2 925
4 945
6 || 28-983
8 || 29-010
10 027
18 || 29-137
20 185
22 242
Pare (0) 274
Zr 287
4 299
6 325
8 334
10 338
18 || 29-270
20 279
22 305
28 0 319
2 330
4 365
6 427
Daity METEOROLOGICAL OBSERVATIONS, NOVEMBER 21—28, 1846.
48-0
37-5
36-4
28-6
24-9
29-8
33-0
33:5
36-2
37-7
Wet.
THERMOMETERS.
Diff.
WIND.
Maximum
force in |fyom
jh,
er ooooc90
SIO Bee eee
0:7
10™,
Clouds,
Sc. : C.-s.: Ci.,
moving
from
Pde
PBhe
eae
22
_
ocoocw
126:
1122 ¢
Bi 4)e
Sky
clouded.
Species of Clouds and Meteorological Remarks,
Seud and cirro-strati.
Scud ; sheets of cirro-strati.
Haze and cirro-strati on horizon.
Id.
Woolly cirri; cirro-strati on horizon.
Cirro-cumulo-strati and cirro-stratus ; cirrous haz
Dense mass of cirro-stratus.
Cirro-stratus ; drops of rain.
Id.
ichs rain?”
Cirro-cumulo-strati and cirro-strati.
Id.
Clouds on horizon.
Id.
Cirro-cumulo-strati to SW.
Scud.
Id. ; cirro-stratus.
dis id.
Mass of cirro-stratus.
Ids 5 misty on horizon.
Patches of seud; dense uniform cirro-stratus.
Seud and cirro-strati; rain!
Id.
Seud and cirro-strati ; rain!
Rain!
Id.
Cirro-stratous scud and cirro-stratus.
Id.
Id.
Id.
Id. rain!
Id.
Clouds broken.
Rain!
Showers.
Seud ; cirro-strati.
ihe deg rain?”
lige id. ; cumuli on N. horizon.
Id.; frequent showers of drifting rain and hail.
Id. a
Id. and cirro-cumulo-strati.
Seud and cirro-strati on horizon.
Clouds on horizon.
Id.
Id.
Seud ; snow"?
Id.; showers of snow. ;
Scud and loose cumuli; occasional showers of snow
Cirro-strati; cirri and cumuli; lunar corona and portion }
Noy. 262 1» 25m, A portion of a halo 23° vertically above the sun, with the horns turned from the sun.
Nov. 264 43», eee
Nov. 284, Thunder said to have been heard to-day. Two flashes of lightning were seen by an individual at Sprouston (6 miles
from Makerstoun.) There were two or three showers of a sort of hail at Makerstoun. :
New silk put on wet thermometer.
BARo-
METER
at 32°.
in.
29-469
500
29-571
29-756
778
812
823
808
811
793
759
707
29-503
469
429
384
355
326
348
354
360
29-319
317
311
311
297
298
298
328
331
29-339
350
375
389
418
447
479
501
550
29-669
699
726
764
761
786
801
801
795
8 M29.648
599
540
464
378
373
SwOakwon:
is
i
2 ¢ rar) :
Ytions of the three strata of clouds, Sc. (seud), C
Dec. 42,
ea 18h,
THERMOMETERS.
WIND.
Dry. | Wet.
36-6
36-0
32-6
31-0
30-6
30-9
32-6
31:7
28-2
26-5
28:8
30-4
35-2
35:8
31-8
30-6
30-2
30-0
30-7
29-3
26-7
25-9
26-6
28-0
35:0
35-9
37-0
38-7
38-4
37-0
30:2
31-8
29-6
23-0
22-0
19-7
24:5
26-0
24-0
18-5
17-2
16-0
19-0
23-2
27-4
31-8
34:2
34-6
34-7
33:8
33°5
29-2
27-8
30-3
31-0
30-6
29:3
22-9
23-7
22-0
32-6
35-0
38-0
40-6
40-9
41-9
42-0
43-0
Diff.
Maximum
force in
yh,
10™,
lbs.
0-7
Clouds,
Se. : C.-s: Ci.,
moving
from
pt. pt. pt.
30:
5 Pxsy 3
: 26:
: 29
729
7 0)
28) a0r
2 PAI
DarLty METEOROLOGICAL OBSERVATIONS, NOVEMBER 28—DECEMBER 5, 1846.
Sky
clouded.
405
Species of Clouds and Meteorological Remarks.
Clouds on horizon. »)
Seud and cirro-strati.
{ Scud i cirrous-crowned nimbi.
during the night.
Slight snow.
Scud and cirro-strati.
Seud ; shower of snow; snow 63 inches deep.
Id.
Id.; woolly cirri; slight showers of snow.
Woolly cirri and cirrous haze.
Cirro-cumulo-strati.
ict, cirrous haze.
Cirro-strati and cirrous haze.
About an inch of snow has fallen
wy
Cirro-stratus.
Id.
Scud and cirro-stratus.
Cirro-cumulo-strati.
Cumulo-strati on E. horizon ; cumulo-strati.
Cirro-strati on horizon ; cumulo-strati to NE.
Id.
Very clear.
Cirro-strati on E. horizon.
Cumulo-strati and haze on E. horizon.
Cumulo-strati.
Cir.-str. to S.
Id.
Id.
Very clear.
; cum.-str. on E. hor. ; haze on horizon.
A few variable patches of cirri to E.
Cirri and cirro-strati on horizon.
Woolly cirri; cirro-strati and haze on horizon.
lich ¢ cumulo-strati on E. horizon.
Seud ; cirro-stratus; nimbus to NE.; shower of snow at Lh 45m.
OO¥Y YYUY' O00 vvyYy 00
licls id. ; slight shower of sleet.
Id.
Id. ; cirro-stratus.
Id.
Cirro-strati on horizon.
Seud to SE. ; cirro-strati on horizon.
Bank of cumulo-strati and cirro-strati to E. and SE. ©
Wool. cirri and cum.-str. ; cum.-str. and haze on E. and
yy wY
Cirro-strati and haze on horizon. © [S. hor. ©
Id.
Id.
Clouds to N. »)
Sky nearly covered with cirro-cumulo-strati. }
Cirro-stratus.
dss rain”?
Seud ; cirro-stratus.
Idi 3 id.
| Misty seud ; woolly and mottled cirri; cirro-strati.
Seud ; slight showers.
Observation made at 18» 8™,
he Biirection of the wind is indicated by the number of the point of the compass, reckoning N. =
.-8. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
A new vane, composed of oiled silk stretched on a light frame of wood, erected instead of the turkey-feather one.
0,E.=8,8.=16,W.=24. The
aK
406 DAILY METEOROLOGICAL OBSERVATIONS, DECEMBER 5—12, 1846.
THERMOMETERS.
Gott BARo-
Mean METER
Time at 32° Dry. | Wet. | Diff.
dean in. 2 © 2
5 6 || 29-358 || 39-8] 37-5) 2-3
8 378 || 36-9| 35-5] 1-4
10 397 || 38-2] 36-0] 2-2
7 0 968 || 38-3| 36.0| 2-3
2 977 || 39-6| 37-2| 2-4
4 || 29-999 || 38-7| 36.2| 2.5
6 || 30-014 || 37-0| 35-3] 1-7
8 048 || 35-1] 33-9] 1-2
10 060 || 33-0| 32-0] 1-0
18 | 30-089 || 36-.0| 35-5] 0-5
20 115 || 36-6] 36.0] 0-6
22 146 || 38-0| 37.4| 0-6
8 0 148 || 40-7] 39-8] 0-9
2 123 || 42-8] 41.6] 1-2
4 132 || 41-8] 40.9| 0-9
6 137 || 40-7| 39-6| 1-1
8 138 || 40-2] 39.1| 1-1
10 135 || 38-8| 37-7| 1-1
18 || 30-076 || 41-0] 39.2| 1.8
20 070 || 40-6| 39.0| 1-6
22 059 || 41-9] 41-1| 0-8
9 0 | 30-030 || 40-6| 38-8| 1-8
2 || 29-998 || 44-6] 42-2] 2.4
18 || 29-531 || 29-2} 26-6| 2-6
12 0 647 || 31-9} 30-6] 1-3
2 | 627 || 31-4| 29-2} 2-2)
WIND.
Maximum
force in
PRS) Lom:
2-8} 1-0
Ne)
bo
wpooCOrRrFR KF WOOF —
CONMNwWENWAaOS HN
Oe SS SR coe
From
Clouds,
Se. : C.-s. :Ci.,
moving
pt.
28:
oo
from
pt.
28:
Oo
724:
OSs
tN
pt.
SP
Sky
clouded.||:
Species of Clouds and Meteorological Remarks
Cirro-strati.
Cirro-strati and haze round horizon.
Cirro-cumulo-strati.
Seud near horizon.
Cirro-cumulo-strati and woolly cirri; lunar coron
Cumulo-strati; scud to EB.
Tas cirro-strati.
Woolly cirri, cirro-strati, and cirrous haze.
Woolly and mottled cirri; cirro-strati.
Cirro-strati, cirro-cumulo-strati, and cirrous haze.
Cirro-stratus.
Clouds on horizon ; stars dim.
Td.
Scud.
Id.
Seud and cirro-strati.
Id.
Id.
Id.
Td.
1 dark.
Id. ; stars dim.
Thick seud.
Id.
Send.
Woolly cirri; bank of cirro-strati to E.
Cirro-cumulo-strati ; woolly cirri.
Scud.
Clouds on S. horizon.
Clouds on horizon.
ids: auroral arch to N.
Scud ; in passing over the moon it produces a coloure
Seud ; shower at 192 45™. [cor
Id.; cirro-cum.-str. ; ragged cum. on N. and
Cirro-cumulo-strati and cirro-strati; loose scud. —
Send ; cirro-cumulo-strati; cum. on N, and E. hor.
Seud and eumuli. ‘
Clouds on horizon.
Id.
Id.
Cirrous haze over the sky; a sprinkling of sno
Cir.-str. and cir. haze ; cum. on hor. } [the g
Woolly cirri and cir.-str. ; scud and cum. on N. and
Id. ; snow?? e ft
Seud; woolly cirri; cirro-strati.
Masses of scud, cirro-strati, and cirri.
Seud and cirro-strati.
Id.
Id.
Heavy shower of snow. {
Cirro-str. and cir. haze ; occasional showers of
CS id.
Snows
Scud and loose cumnli; snow about 43 inches
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, 8S.= 16, W.= 24 The
motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. :
DaiLy METEOROLOGICAL OBSERVATIONS, DECEMBER 12—19, 1846. 407
THERMOMETERS. WIND.
[i a | ee Clouds,
Maximum Se. :C.-s.:Ci.,|| Sk Atel f
Dry. | Wet. | Diff. force in |prom ata clouded. Species of Clouds and Meteorological Remarks.
1h, ,10™,
= e: S lbs. | Ibs. pt. || pt. pt. pt 0—10.
31-0] 28-6] 2-4|| 0-9} 0-6} 29 1:—:—¥J 8-C || Seud and cumuli.
29-4] 27-4) 2-0]! 1-3] 1-0} 28 2:0 Id.
29-0| 27-0} 2-0) 1-5) 0-9} 29 1-0 || Patches of scud.
28-6] 26-6} 2-0}, 1-5] 0-6 | 30 1-0 || Clouds on horizon.
DORAN «2. i. 1:3) 0-4} 30 2-0
23-0 | +--+ vee |] see | OL | 23 0-2 |] Clouds on E. horizon. »)
24.7| 22.7| 2.0|| 0-1] 0-0} 20 1-0 || Bank of cirro-strati on E. horizon. »))
27-2| 25-0| 2-2) --. | 0-4) 28 || O:—: 0] 4.0 || Scud and woolly cirri; cumuli on horizon. O}
28-6 | 26-4| 2-2] -.. | 0-5| 27 || —:30:—|| 4-0 || Woolly cirro-strati; cumulo-strati on horizon. (0)
DOr 27 -2)|| Deo enn Oran) 23) 130 3 —— 2-5 Id. ; cumuli and nimbi to E. (0)
29.2| 26-3) 2-9]! ... | 0-2] 28 2-5 Nady: id.
29-2| 26-6| 2-6|| --- | 0-4] 28 0-5 || Clouds near horizon.
28-8 | 27-0| 1-8]| .-- | 0-5] 28 2-0 Id.
26-6 | 24-9} 1-7|| --- | 0-5} 28 0:5 Td.
30-3] 28-3| 2-0|| 1-0] 1:0] 0 9-8 || Scud ; snowing.
29-0| 28-0} 1-0}| 1-0] 0-3 0 9:8 Id.
29.2} 28-4| 0-8]| --- | 0-2) 31 10-0 || Shower of snow.
31-6} 30:3] 1-31] --- | 0-2) 28 0:—:—| 7-0 || Seud and nimbi; occasional showers of snow.
28-3 | 27-4| 0-9]) 0-2} 0-1} 28 2-0 || Scud to S. and E. ©
29-0} 27-4| 1-6] 0-6] 0:3} 27 2-5 || Cumuli, cirro-strati, and haze on E. horizon.
30-6 | 29-5| 1-1]| 0-9) 0-8] 28 1-0 || Clouds on horizon.
31-0} 29-8] 1-2|| 2-2} 1-2} 28 0-2 Id.
32-0] 30-6| 1-4] 1-8) 0-8} 0O 2-0 Id.
30-2] 28-2] 2-0]) 2.3] 0-8} 28 0-5 || Clouds on horizon. }
31-2] 28-7} 2-5] 1-2} 0-5] 28 5-0 || Cirri and cirro-strati. }
30-6] 28-0} 2-6|| 0-7| 0:4] 27 2-0 || Scud and cirro-strati on horizon. ©
| 32-1] 29.5| 2-6|| 0-5| 0-3) 27 2.0 Id. ro)
34-8 | 31-6| 3-2] 0-3| 0-2] 28 ||} —: 1:—|| 7-0 || Cirro-cumulo-strati.
34-7| 31-8| 2-9) 0-3] 0-2} 24 10-0 || Mass of cirro-stratus.
32-8] 32-2) 0-6)! 0-3] 0-1) 24 10-0 || Snowing.
32.5) 32-1) 0-4]| 0-1] 0-0} 20 10-0 Id.
31-6] 31-6] --- || 0-0| 0-0} 20 10-0 || A few flakes of snow falling.
24-8} 23-6] 1-2|| 0-1] 0-0 0:5 || Clouds on S. horizon.
20-8| 19-7} 1-1]) 0-1] 0-1) 23 1-0 || Bank of seud and cirro-strati to N. »))
29-0} 28-0} 1-0} 0-1] 0-1] 28 131:—:—J]| 8-0 || Scud.
33-3] 31-1] 2-2]| 0-8) 0-4) 28 | 0:—:—+]| 3-0 Id. ©
34-6] 32-6) 2-0|/ 1-5) 0-3) O | 1:—:—|| 10-0 |) Heavy snow showers since 1.
32-2 | --.++- se || 1-2] 0-1] 31 3-0 |} Cumuli and nimbi.
29-7| 27-8| 1-9} 0-2} 0-1 2 3-0 || Seud and cumuli.
27-4) 26-7| 0-7} 0-5| 0-0] 22 1-0 || Clouds on E. horizon.
25-6| 24-8] 0-8} 0-1} 0-0] 18 1-0 Id.
13:0} 13-0} --- | 0-0] 0-0} 18 1-0 || Cirro-strati and thin haze.
18-5] 18-0! 0-5}! 0-2) 0-1} 20 3-0 Td.
25-5| 24-4! 1-1] 0-2] 0-1} 24 5-0 || Cirro-strati and cirrous haze.
34-4] 32-3] 2-1) 0-6] 0-4] 22 |, —:28:—|! 10-0 || Cirro-strati; a parhelion at 23%.
36-8 | 34-6} 2-2) 1-5| 1-0) 20 || —: 26:—|| 10-0 Id.
38-5| 35-6| 2-9) 3-4/ 1-7] 20 |124:30:—|| 9-5 || Scud; cirro-strati.
38-6 | 36-8] 1-8) 1-8) 1-3} 19 9.5 Id. ; id.
39-6] 38-4| 1-2} 1-6} 1-0} 20 10-0 Id.
41-0} 39-5| 1-5) 1-5] 0-3} 19 10-0 Id.
39-4] 39-1] 0-3]| 0-9| 0-0} 12 3-0 || Seud and thin haze.
38-9| 38-6| 0-3|| 0-1| 0-0| 20 10-0 || Scud; the snow is disappearing rapidly.
38-8 | 38-4] 0-4 | 0-0} 0-0) O 10-0 || Fog, trees invisible at 200 yards ; slight drizzling rain.
40-7| 40-3| 0-4! 0-0] 0-0] 8 |}26:—:—|| 10-0 || Scud; cirro-strati; fog clearing off.
he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8,8. = 16, W.= 24. The
ons of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
2c, 124 104. Three bright flashes of lightning seen to K.
pe. 164 105. About 104 7™, it had become overcast and a shower of snow commenced.
408 | Daity METEOROLOGICAL OBSERVATIONS, DECEMBER 19 —25, 1846.
THERMOMETERS. WIND.
Gott BaRro-
Mean METER Maximum
Time. at 32°. Dry. | Wet. | Diff. force in |Pyom
14, |10™,
d. h. in. c S ° Tbs. | lbs.
19 2 || 29.456 || 46:0] 45-1! 0-9 || 0-6} 0-3
4 452 || 45-9| 45-0} 0-9] 0-7! 0-5
6 427 || 45-0| 44-3} 0-7 || 1-1] 0-1
8 414 || 45-4) 44-4! 1-0|) 0-8} 0-3
10 407 || 45-7| 44-1] 1-6]] 0-8} 0-6
23 || 29-176 || 43-9| 41-5) 2-4]} 2-3} 1-0
2018 | 28-851 || 39-8} 39-4)| 0-4 || 2-2) 0-0
20 778 || 39-3] 39-0} 0-3 || 0-0! 0-0
22 745 || 38-7| 38-4] 0-3]| 0-1} 0-1
21 0 708 || 41-8! 41-3} 0-5 || 0-1) 0-1
2 683 || 41-5| 41-0} 9-5] 0-5} 0-3
4 690 || 40-3| 39-1| 1-2] 0-4} 0-2
6 689 || 38-0; 37-1} 0-9]! 0-7) 0-9
8 708 || 37-9| 36-8} 1-1] 0-2} 0-1
10 717 || 35-2| 34-6) 0-6|| 0-1] 0-1
18 || 28-788 || 34-4] 33-5! 0-9} 0-1} 0-1
20 822 || 34-8} 34-1] 0-7]! 0-1] 0-1
22 848 || 34-5] 33-2) 1-3] 0-1] 0-1
22 0 861 35-2| 33-6] 1-6]| 0-1] 0-1
2 861 37-0| 34-7} 2-3|| 0-2) 0-1
4 859 || 35-7] 33-8} 1-9]! 0-2} 0-1
6 847 || 33-9| 32-2} 1-7]| 0-1} 0-1
8 820 || 33-3} 31-6} 1-7 || 0-1} 0-0
10 801 || 33-3) 32-6] 0-7]| 0-1] 0-0
18 || 28-681 |} 34-0} 32-8] 1-2]| 2-7} 0-9
20 689 || 33-0} 32-6| 0-4]] 2-8| 2-1
22 748 || 35-3| 33-7| 1-6]| 3-7} 1-5
23 0 787 || 36-9] 33-4) 3-5]| 2-4) 2-0
2 819 || 36-5| 33-0] 3-5|| 2-4] 1-6
4 849 || 33-8) 33-2) 0-6|| 2-8} 2.7
6 870 || 33-4! 33-0| 0-4]| 3-4] 2-1
8 899 || 33-9} 33-4} 0-5|| 4-4] 2.3
10 949 || 33-2} 32-7} 0-5|| 2:9] 0-4
18 || 29-096 || 30-0} 28-0} 2-0]} 1-3] 0-2
20 126 || 26-0| 25-3} 0-7] 0-1] 0-0
22 174 || 27-8] 26-6] 1-2|| 0-0| 0-0
24 0 207 || 31-1) 30-0] 1-1]) 0-1} 0-1
2 213 || 28-6| 27-6} 1-0} 0-4) 0-3
4 221 28-7 | 27-5) 1-2}} 0-5} 0-4
6 PAS | 27-1| 26-6! 0-5 || 0-4] 0-3
8 274 || 23-7| 23-0| 0-7}! 0-2| 0-1
10 295 || 23-4] 22-5] 0-9]| 0-2! 0-1
18 || 29-438 || 29-9} 28-4} 1-5 || 1-0] 0-4
20 498 || 31-0| 29-6} 1-4]] 0-3] 0-2
22 568 || 27-6| 26-2] 1-4]| 0-4] 0-3
Zon 636 || 29-2} 28-1] 1-1]! 0-7] 0-4
2 672 || 28-2) 26-7} 1-5)| 0-9) 0-4
4 707 || 28-3} 26-4] 1-9]! 0-4! 0-5
6 743 || 31-0} 28-4] 2-6]| 0-6} 0.3
8 792 || 31-3| 29-0} 2-3] 0-5! 0.3
10 | 832 | 31-4] 29-3] 2-1]! 0-6| 0-3
18 || 29-930 || 25-2] 24-6| 0-6]| 0-4) 0-0
20 || 29-925 || 32-4) 30-8| L-6]| 0-3) 0-2
22 || 30-010 || 34-8} 32-3] 2-5]) 0-3 0-3
Clouds,
Se.: C.-s.: Ci.,
moving
pt.
ile
19:
22s
from
pt.
74298
pt.
Sky
clouded.
a
=
Species of Clouds and Meteorological Remar’
Seud.
Loose driving scud ; seud ; cirri and cirro-strati.
Seud.
Id.
Id.
Seud.
Seud ; rain”?
Id.; rain?
Misty scud ; rain”?
Thick cirro-stratus and cirrous haze.
Seud; rain!
Seud ; cirro-stratus.
Seud and dense cirro-stratus.
ids; breaking slightly te
Cirro-stratus.
Scud and cirro-stratus.
Id.
Cirro-cumulo-strati; cirro-stratous scud and ci
Cirro-stratous scud ; cirro-strati.
Scud and cirro-stratus.
Id.
Seud and cirro-cumulo-strati.
Id.
Seud and cirro-stratus.
Scud ; snow on the ground.
Snow,
Scud ; shower of snow.
Id.; snow!
Heavy snow and sleet.
Continuous snow and sleet.
Id.
Seud and cirro-strati.
Cirro-cumulo-strati and woolly cirri.
Seud, cumuli, and nimbi; cirro-strati.
Id.
Cumuli and nimbi; parhelion at 1.
Id. (the zenith from
Cum. and scud on hor.; masses of clouds occasionally p
Clouds on horizon.
Clear.
Seud.
Id.; snow?
Seud and loose cumuli.
Cumulo-strati and nimbi on horizon.
Id.
Td. ; haze rou
Masses of cirro-stratus to SH.
Cirro-strati and haze on E. horizon.
Sheets of thin cirro-strati and cirri.
|
Clear.
Cirro-strati on E. horizon.
' Cirro-strati on N. horizon.
The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H. = 8, 8. = 16, W.=2
motions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
Dartty METEOROLOGICAL OBSERVATIONS, DECEMBER 26—31, 1846. 409
THERMOMETERS. WIND.
| —F7 alae Sie
# Maxi Cc.: U.-S.:U1., Mit ° .
7 Be a ee Re aeas pay moving clouded. Species of Clouds and Meteorological Remarks.
| '° y: . . i 10m from
| h. in. oc ° . lbs lbs pt pt pt. pt 0—10
50 || 30-045 || 34-3) 32-4] 1-9 1) 0-1} 16 0-5 |) Cirri and cirro-strati. 0)
12 065 || 36-6| 34-8] 1-8] 0-1] 0-1) 16 1-0 , ©
4 089 || 34-2} 33-2} 1-0} 0-1] 0-0) 19 || —:—: 0]| 5-0 | Woolly cirri, cirro-strati, and cirrous haze.
6 119 || 31-6] +. | --- || 0-1] 0-0} 18 3-0 || Woolly cirri. »))
8 154 || 29-0) 28-6} 0-4|| 0-1] 0-0) 16 2:0 || Cirrous haze and woolly cirri; lunar corona. »))
0 167 || 24-1} 23-9] 0-2); 0-0) 0-0) 18 0-0 || Clear. y
23 30-214 || 17-3 0-0| 0-0 10-0 || Woolly cirri and cirro-strati.
M8 || 30-104 || 36-6] 35-0) 1-6], --- | 0-1] 22 10-0 || Homogeneous.
0 115 || 38-2} 37-5) 0-7 || 0-1] 0-1} 21 9-5 || Scud and cirro-strati.
12 130 || 37-5| 36-7] 0-8 || 0-2| 0-2) 18 || 26:—-:— || 3-0 || Scud.
0 141 || 37-9| 37-0| 0-9|| 0-3} 0-2) 17 0-5 || Scud on horizon. (0)
12 140 || 39-7} 38-2] 1-5|| 0-2] 0-1) 16 || 28:—:— J} 3-0 || Seud. (0)
14 134 |) 38-3} 37-2] 1-1|| 0-4] 0-3] 18 |28:—:—J| 9-5 || Id.; cirro-stratus.
6 147 || 37-0) 36-3} 0-7]| 0-2] 0-1] 18 10-0 || Id.; id.
S 147 || 36-5| 36-1] 0-4|| 0-0} 0-0| 16 10-0 || Thin cirro-stratus and scud ; drops of rain. >
10 133 || 37-0} 36-6] 0-4 |) 0-0| 0-0} 20 10-0 || Cirro-stratus and scud.
j8 || 30-100 || 36-9] 36-6| 0-3|| 0-2) 0-0] 20 3-0 || Cirro-strati and scud.
0 105 || 36-8] 36-3] 0-5|| 0-1] 0-1] 21 5-0 || Woolly and linear cirri; scud on E. horizon.
131 || 37-6| 37-2] 0-4]| 0-3] 0-1] 18 |) 21:—:—J|| 2-0 || Loose scud; linear cirri. ©
90 125 || 40-0; 39-1] 0-9}| 0-3] 0-2) 18 9-0 || Woolly cirri and cirrous haze. e
|2 111 || 41-0} 40-1) 0-9|) 0.2) 0-2} 20 || 20:—:—J| 10.0 |] Misty scud; cirro-strati.
4 125 || 40-2} 39-3] 0-9] 0-5| 0-1) 20 | 24:—-:—¥J) 9.9 || Scud ; cirro-strati.
6 147 || 39-1] 38-3] 0-8|| 0-4] 0-0} 14 10-0 |] Scud and thick cirro-strati.
8 |; 161 || 38-9| 38-2] 0-7]| 0-2] 0-1} 20 10-0 Id. >
0 186 || 37-8} 37-5} 0-3 |] 0-2} 0-0} O || —:24:—|| 3-0 || Cirro-cumulo-strati. }
8 || 30-232 || 33-5) 33-3] 0-2] 0-3} 0-1} 18 5-0 || Cirro-strati; misty. »))
0 242 || 32-7| 32-5) 0-2|| 0-1] 0-1] 18 10-0 Td. id.
{2 260 || 34-3] 34-0] 0-3] 0-3} 0-1] 22 || 22:—=:26 4:0 || Loose scud: cirri.
10 278 || 34-8} 34-4] 0-4 || 0-3] 0-1] 18 0-5 || A few clouds near horizon. (0)
256 || 36-5) 36-2} 0-3] 0-1} 0-0] 20 0-5 Id. ©
261 || 39-2) 38-3} 0-9|| 0-2} 0-2} 22 || —:—: O|| 2-5 || Woolly cirri; hazy round horizon.
6 274 || 35-6] 35-2] 0-4}) 0-3} 0-1] 16 3-0 || Clouds and haze on horizon. ; y
8 274 || 36-6| 36-2} 0-4]! 0-1} 0-0} 20 10-0 || Scud and cirro-stratus.
0 263 || 37-4| 37-0| 0-4|| 0-0) 0-0} 18 10-0 Id.
8 | 30-269 || 39-2) 38-8} 0-4/| 0-3} 0-1] 19 10-0 || Scud and cirro-stratus.
0 271 || 40-8} 40-3; 0-5] 0-1] 0-1} 18 10-0 Id.
304 || 41-1] 40-6} 0-5) 0-1) 0-1| 22 || —-:28:—|| 8-0 || Cirro-stratous scud.
110 299 || 42-0} 41-5] 0-5]| 0-2] 0-1} 20 || 30:—:—|| 6-0 || Scud.
2 276 || 43-8] 43-2} 0-6] 0-1} 0-1} 5 9-8 || Cirro-cumulo-strati and cirro-strati.
4° 280 || 43-6} 42-8| 0-8] 0-1] 0-1] 22 9-9 || Wavy cirro-strati; loose scud on EK. horizon.
6 272 || 42-4) 41-8} 0-6]] 0-1} 0-0] 20 10-0 || Thick seud.
§ 283 || 40-2| 39-8 | 0-4]) 0-0] 0-0} 22 10-0 || Homogeneous.
i! 284 || 39-8} 39-6] 0-2 || 0-1} 0-0} 26 10-0 Id.
| he direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.= 8,8. = 16, W.= 24. ‘The
rt of the three strata of clouds, Se. (scud), ©.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner.
.
! MAG, AND MET. oss. 1846. _
Kh :
oe
Pe F:| BOND he XP teh
METEOROLOGICAL OBSERVATIONS
x
MAKERSTOUN OBSERVATORY, |
1846.
412 DAILy METEOROLOGICAL OBSERVATIONS, JANUARY—JUNE, 1846.
TEMPERATURE.| RADIATION. | Rainin] TEMPERATURE.| RADIATION. |Rainin]TEMPERATURE.| RADIATION.
ad REE CCU CON tere meee ie teal me | CS
Max. in. Max. |at Noon, in. in. . jat Noon,
COonaurfPwnd-
32-5 ?|—0-3
36-7
39-4
47-1
45-1
50-8
50-5
46-1
49-2
46-1
45-4
52-5
42-1
FEBRUARY.
34-2
Min Max. Min. Max.
a JULY
1 50-5 | 64:3 | 48-0 | 83-7
2 52-7 68-3 | 45-6 |102-3
3 55-2 | 66-5 51:8 78:8
4 55-4 | 71-3 53-3 |100-7
5 || 44-7 | 80-5 | 41-9 |114-0
6 52-1 60-5 | 44-4 | 61-4
We 48-0 64-5 | 45-6 {107-2
8 47-0 | 59-5 | 44-7 | 87-2
9 48:7 | 56-7 50-1 60-4
0 49-4 | 70-2 | 48-1 {112-3
1 46-5 | 64-5 | 42.7 | 88-5
2 52:0 | 68-3 B)ilonl 86-8
3 || 57-7 | 72-7 | 55-6 |100-8
4 50-6 | 78-0 48-3 1119.2
53-3 71:0 | 50-7 {108-8
; 55-9 70-0 56-5 | 82-0
7 52-4 | 64-3 52-7 | 88-3
45-6 | 67-1 42-1 75-0
3 45-5 63-9 | 42-1 95-7
J 47-4 | 65-1 46-2 | 95-8
50-7 69-5 48-7 | 88.2
50-8 65:7 47-6 |101-3
50-4 | 67-6 | 47-7 | 75-0
52:4 | 65-9 | 49-4 | 98-0
47-4 | 64-7 | 44.6 96-0
48-6 | 68-8 45-2 |102-3
52-4 | 72-3 52-2 96-2
58-9 | 75-1 59-2 |105-5
55:8 | 65:3 | 54:6 | 74-0
53-4 | 70-1 55-1 93-5
55:8 | 68-7 | 58-1 {114-0
AvGust
5400.2 | 72-3 |... 120-5
58-5 71-5 57-1 91-2
59-5 77:3 60-6 |114-8
(51-2 | 73-2 | 46-4 |113-5
54-3 72-1 48-3 |105-1
| 50-3 | 80-3 48-7 |118-6
| 51-3 68-2 | 45-9 | 79-8
Ss) 2) 75-2 | --se0e 89-9
) || 54-7 | 72-3 | 50.8 | 96-5
j 52-3 | 68-6 | 48-1 99.7
] || 49-2 | 65.8 | 45.2 | 88.2
] | 52-0 | 67-5 | 46-2 | 89.0
ma 52-1 | 67-4 | 52-1 | 77-0
a 43-7 | 69-1 39-3 1105-5
od] 50-3 | 65-2 | 47-1 70-0
4 || 47-7 | 66-5 | 45-4 | 99-5
; ] 50-3 | 67-6 | 44.7 | 99.4
d 53-8 | 69-4 | 52-6 | 92.5
J) 46-1 | 67-6 | 41-7 111-0
“ “ 48-3 64-7 | 43-5 65-6
ke a 55-7 | 70-4 | 55-6 94-6
“2 | 49-4 | 70-3 | 45-9 |106-5
4 | 53-3 | 57-3 | 57-6 | 65-0
§ 48-0 | 66-4 | 43-2 |114-0
Ri: 37:0 | 69-9 | 33-4 |107-0
é 39-8 | 66-7 36-2 |110-8
39-7 | 66-7 | 36.2 |114-6
47-1 68-3 | 41-6 {112-2
53-3 | 69-1 | 43-2 | 84.8
46:0 | 70-7 | 44-4 |102.3
i 54-2 | 66-5 51-1 73:5
7
TEMPERATURE.
RADIATION.
4: | MAG, AND MET. ozs. 1846.
Rain in
Gauge
at Noon.
ee ceee
eseeee
TEMPERATURE.| RADIATION. | Rain in
a Gauge
Min. Max. Min. Max. |at Noon.
° ° ° ° in.
SEPTEMBER.
37-8 65-1 34:9 |106-0 |0-121
49-2 | 67-4 | 44:6 | 93-5 -000
47-8 68:4 | 45-2 | 92-0 -000
49-6 68:02] 46-7 | «----- -000
53-3 | 74:3 52-2 |105-0 -000
52-1 74-2 | 47-2 |102-5 | «++.
53-9 74:1 51-7 |105-7 -087
53:3 68:7 50:6 | 80:8 -000
48-0 67:3 | 43-2 | 97-0 -005
36-5 63-5 33-6 94-3 -000
45-8 74-4 | 42-3 |110-5 -000
54-2 | 71-2 50:7 |103-3 -000
41-5 68-5 38:5 |112-5 | ------
46-9 | 71-7 | 44-5 |116-8 -000
47-4 71-3 44-5 |115-8 -000
44-8 70-0 | 43-0 | 79-7 -000
46-1 67-5 | 44-6 86:7 -010
42-5 60-1 37-4 |104-8 -000
40:0 | 64-0 | 34-9 | 79-5 -005
51-2 | 62-1 51-9 90-8 +245
50-0 58-3 50:6 |104-7 -103
33-2 59-0 29-8 |... -000
51-2 | 64-7 | 46-92] 75-2 644
47-1 65-0 | 43-9 | 99-0 -053
53-3 64:3 52-9 |103-8 -005
40-5 62-8 36:5 | 71-8 -040
47-9 | 61-2 | 46-2 94-5 -130
34-7 55-4 30-9 61-0 | 0-003
46-3 51-2 | 45-2 | 51-6 | 2-750
47-4 | 60-3 | 43-1 98-7 | 0-490
OcToBER.
44.7 65:5 40-1 99-6 | 0-016
34-4 | 61-9 30-7 | 96-0 -000
38-8 58-8 33-2 | 92-0 -000
36-9 55-7 | 31-4 | 60-3 | ------
49-7 61-9 | 48-0 | 67-9 -000
50-7 58:5 46-9 85-0 049
44.2 57:2 | 42-1 76-6 :095
41-7 56-1 38-9 | 71-9 -147
45-2 57-5 40-8 56-7 +158
52-3 60-4 | 49-4 69:7 +152
42.3 59-1 35:6 | 89:0 | .-----
49-7 53-5 50-2 | 59-0 -530
40-3 | 49-6 | 36-4 | 75-5 -080
37-3 48-7 | 33-1 52°35 -410
42-5 54:3 41-3 | 79.4 055
38-5 55-2 | 34-4 | 79-1 -002
45:3 56-1 39-7 | 67-7 -000
48-7 55-3 | 44-6 60-4 | «+++
48-2 | 56-1 48-3 69-0 -638
44.2 56-1 42-3 81-0 -032
36-5 54-9 31-9 68-0 -077
43-5 52:3 39-4 66-5 +239
39:7 | 47-3 35-4 75:3 +211
36:7 | 49-3 32-1 67-8 -294
40-5 51-5 39-6 | 68-8 -300
29-4 52-1 25:8 | 78-2 -026
25-5 | 48-7 23-3 80-5 -010
38-2 52-8 32-5 59-4 -001
37-5 50-5 32-7 82-8 -000
30-9 50-7 | 27-9 | 64-4 -000
35-2 52-1 31-1 53-7 -000
TEMPERATURE,
Min. Max.
N
49-0 | 53-2
44-9 | 54-0
43-3 54-4
43-0 | 55-8
39-0 | 52-3
46-0 | 53-2
40-4 53-5
46-7 51-5
38-5 43-1
28-2 | 45.3
26-4 44-5
38-4 45-3
42.1 45-5
40-1 42-3
38:2 | 41-5
32-0 | 46-5
37-0 52-1
40-9 51-6
41-1 49-5
43-0 | 52-5
41-6 | 46-7
36:0 | 42-3
33-0 42-8
40-3 54-9
36:3 44-5 2
41-1 45-6
40:0 | 44-5
23-0 37-1
26-2 34-5
28-1 32-3
D
25-4 | 40-9
17-6 | 26-4
14-4 | 37-6
26:5 | 33-2
20-6 | 43-1
30-4 38-4
34-5 39-6
30-1 42-7
34-7 44.2
31-1 45-72
24-8 | 30-2
Arar || Beez
23-9 | 29-5
16:0 | 29-7
24-1 32-1
27-6 | 34:3
19-4 | 38-7
10:6 | 42-3
36-9 45:8
39-7 | 44-7
eiiray |) “lilers
30:7 | 36-3
29:7 | 36-2
21-0 | 30-5
18-4 30-0 2
23-7 | 35-6
15:0 | 26-8
18-2 | 38-6
34-0 41-3
30-7 | 38-6
35-6 44.0
@ Datty METEOROLOGICAL OBSERVATIONS, JULY—DECEMBER 1846.
RADIATION.
Min. Max.
OVEMBER.
49.1 56-0
41-6 70-2
39-1 75:6
35:3 71-4
33-6 71-2
41-1 72:8
36-8 66-4
42.12) 53-0
34-1 57-2
26:8 76-5
23-2 51-8
34-1 46-5
41-9 46-8
39-4 43-2
37-9 42-0
27-2 53°5
30-2 51-0
38-4 64:5
38-5 65-0
39-2 62-2
39-1 62-2
32-2 59-0
28-6 46-6
40.2 69-8
Siloile Al Goovea
40-8 47-5
40-4 44:5
19-4 | 42-0
22-4 | 40-6
23-2 | 40-8
ECEMBER.
22.4 51-0
14.2 41-5
10-2 48-5
19-9 44-5
16-2 42-3
25-2 46-5
30-6 46-5
26-2 44-5
31-2 54-0
OF Gi Bentetevarons
18-9 32-2
25-4 34-0 2?
19-6 39-0
7:6 | 39-5
17-7 37-0
24.2 45:5
15-2 42-2
5:4 43-02
34-7 45-0
36-6 53-4
35-1 44.0
28-2 46-5
26-1 36-5
18-4 33-0
12-8 33-5
18-8 54-2
13:3 35-0
14:6 | 49-6
31-8 44-5
27-2 | 53-5
Ronco || alr is,
5M
413
Rain in
Gauge
at Noon.
eesene
414 ExtTrRA METEOROLOGICAL OBSERVATIONS, 1846.
ACTINOMETER.
|
MBan ige In Sun | Observation. | Qhange| Effect} Mean | Sun’s eee In Sun | Observation. | Change | Effect | Mean |
of 05 Sn litte KE ames alt Matt of of Alti- of Or: | = Ea eer of of |
First Reading. | Shade. |Begun.|Ended. 60s, | Sun. | Group. | tude. | First Reading. | Shade. Begun.|Ended.| 60°. | Sun. —
d. hm & Sc. div.| Se. div.| Sc. div. | Se. div.| Sc. diy. Ss dy. OR.) Bie e,. Se. div. | Se. div. | Sc. div. | Se. diy. Se. diy. |
May 15, 16, 1846. May 31—Junz 1, 1846.
15 23 31 O| Sun 13-8 | 20-3 | +6-5 31 22 47 45| Sun 33-2| 39-9 | +6-7
32 30| Shade} 20-7 | 20-8 | +0-1 6-4 49 15| Shade]! 38-7 | 35-8 | —2-9
34 O} Sun 23-8| 30-3 | +6-5 6-6 50 45| Sun 38-8 | 46-0 | +7-2
35 30) Shade} 30-3/ 30-0 | —0-3 | 6-7 52 15! Shade! 44-8] 41-7 | —3-1
37 O| Sun 33-0| 39-4 | +6-4 | 6-9 53 45| Sun 44-7 | 50-3 | +5-6
38 30| Shade) 39-1)38-5 | —0-6 | 6-9 6-80} 53-4 55 15| Shade! 48-3/44-0 | —4.3
40 0O| Sun 41-4|47-7 | +6-3 | 6-9 56 45| Sun 22-2) 27-6 | +5-4
41 30) Shade| 47-5|46-9 | —0-6 | 6-9 58 15| Shade} 25-7| 21-6 | —4-1
43 0} Sun 49-7 |55-9 | +6-2 | 69 59 45| Sun 24-2} 29-9 | +5.7
44 30} Shade} 18-3/17-5 | —0-8 | 7-0 31 23 1 15} Shade} 27-9| 23-7 | —4.2
46 0} Sun 20-3 | 26-5 | +6-2 2 45) Sun 25-8 | 30-8 | +5-0
_ BSR HeOS. £15) Sai] 987] 201 |"
29 O|} Shade} 24-8 | 22-4 | —2-4 | 5.9 \ 6.00 53-0
30 30) Sun 24-6| 27-0 | +2-4 | 6-1
32 0} Shade} 24-8/19-8 | —5-0 1 O 54 45] Sun 36:7 | 45-8 | +9-1
: 56 15} Shade| 46-0/ 45-7 | —0-3
May 31, 1846. 57 45| Sun | 49-4/58-0 | +8-6
31 21 26 45} Sun 17-9| 26-6 | +8-7 59 15! Shade| 58-0} 57-0 | —1-0
28 15| Shade| 27-2} 28-0 | +0-8 | 8-0 1 1 0 45) Sun 31-0 | 39-4 | +8-4
29 45| Sun 31-9| 40-7 | +8-8 | 8-2 2 15| Shade} 39-2] 38-1 | —1-1
31 15| Shade} 41-3]41-8 | +0-5 | 8-0 3 45) Sun 41-7| 49-8 | +8-1
32 45| Sun 45-6|53-8 | +8-2 | 7-9 5 15] Shade} 49-3} 47-9 | —1-4
34 15| Shade} 54-1|54-3 | +0-2 | 8-1 8-21} 47-4 6 45| Sun 51-6| 59-8 | +8-2
35 45] Sun 16-5 | 24-9 | 48-4] 8-4 8 15] Shade] 59-5 | 58-2 | —1-3
37 15| Shade} 25-2] 25-1 | —0-1 8-4 9 45| Sun 61-6 | 69-5 | +7-9
38 45) Sun 28-7| 36-9 |+8-2 | 8.4 11 15| Shade! 69-0| 67-4 | —1-6
40 15| Shade) 37-0| 36-7 | —0-3 | 8-5 12 45} Sun 30-7 | 38-6 | +7-9
41 45) Sun 40-3 | 48-6 | +8-3 14 15] Shade] 38-0) 36:0 | —2-0
31 22 9 45| Sun | 12-3/20-5 | +8.2 pe | ea] oes On et Be
11 15| Shade} 20-1] 19-0 | -1-1 | 9.0 } ade) Aaa eee
‘ 18 45} Sun 46-5 | 53-3 | +6-8
12 45| Sun | 22-7|30-4 | +7-7 | 9-1 20 25) Shade} 51-8|48-9 | —2.9
14 15| Shade} 29-9| 28-3 | —1-6 | 9-5 : 5 et
21 45} Sun 50-7 | 57-4 | +6-7
15 45| Sun 31-8/39-9 | +8-1 | 9-6 :
23 15} Shade! 56-1/ 52-8 | —3-3
17 15! Shade} 39-3|37-9 | —1-4 |] 9-4 f 9-39| 51-7 pate San 55-8 | 63.0 7.2
18 45| Sun | 15-9/23-8|+7-9| 9.7 5 La Shaicl Gotten eee
ade| 62-1/59-7 | —2.4
20 15} Shade] 23-0| 20-8 | —2-2 | 9-7 27 55| Sun 63-9| 71-3 | 47-4
21 45) Sun 23-7 | 30-8 | +7-1 9-3
eee 11 5045] Sun, | 175 209 | 445
52 15| Shade} 19-8} 14-8 | —5-0
31 22 31 45); Sun 5-3|14-5 | +9.2 53 45| Sun 17-2} 23:0 | +5-8
33 21) Shade} 16-0} 10.2 | —5-8 | 13-7 | 55 15] Shade! 21-1] 16-9 | —4-2
34 45| Sun 11-6/ 18-2 | +6-6 | 12-7 56 45| Sun 19-5 | 24-8 | +5-3
36 15] Shade| 16-9] 10-4 | —6-5 | 12-3 | 58 15| Shade| 57-4) 52-1 | —5-3
37 45) Sun 12-9} 17-9 | +5-0 | 12-1 |}11-97) 53.4 59 45| Sun 54-5 | 60-0 | +5-5
39 15) Shade| 15-3} 7-6 | —7-7 | 11-6 | 1 2 1 15} Shade} 58-0} 53-0 | —5-0
40 45] Sun 8-0) 10-7 | +2-7 | 10-4 2 45} Sun 55-5 | 61-3 | +5-8
42 15) Shade} 20-1] 12-3 | —7-8 | 11-0 | 4 15} Shade] 59-1| 53-9 | —5.2
43 45' Sun 14-2! 17-8 | +3-6 5 45} Sun 56-4| 61-6 | +5-2
May 154 235 44m, Screw withdrawn.
May 162 0 30™, Clouds near the sun.
May 314 21 35™. 308. Screw withdrawn.
May 314 22 10™, Dry thermometer, 67°:5, wet thermometer, 55°'5.
May 314 22h 31m—45m, Glass plate removed from the instrument, replaced after 22% 45m,
May 314 22h 34m 30s, Screw turned in.
May 314 22h 42m Qs. Screw turned in.
May 31¢ 22 58m. Sky somewhat milky.
May 314 23 6™. During the preceding observations, there was a small bubble of air about 0:1 inch in diameter in the bulb aft:
small piece of sediment.
June 14 1h 58m Qs, Screw turned in.
ExtTrRA METEOROLOGICAL OBSERVATIONS, 1846. 415
‘| ACTINOMETER.
rstoun Ob ti ) Makerstoun Observation
i Time | In Sun servation. | Change] Effect| Mean | Sun’s} jean Time | In Sun + | Change | Effect| Mean | Sun’s
or
in of of Alti- Of or in of of Alti-
tude. | Pirst Reading. Shade. Begun.|Ended. 60s. Sun. | Group. | tude.
eading. Shade. /Begun.|Ended. 608. | Sun. | Group.
My m. 5s. Se. div.| Se. diy.} Sc. div. Se: div.| Sc. div. da. Vhs 7m. Se Se. diy. ‘Se. diy.} Se. div. | Se. div.] Sc. diy. Gs
JUNE 1, 1846. JUNE 1, 1846.
7 15| Shade| 59-0 | 53-3 | —5-7 | 11-1 1 4 45 Sun 57-3 | 62-8 | +5-5 |
15| Shade| 61-8 | 58-7 | —3-1 | 8-7
45| Sun | 61-2/66-9 | +5-7 | 8-7
15| Shade| 65-8 | 62-8 | —3-0 | 8-5
Sun | 64-9|70-2 | +5-3 | 8-5 |} 8.61] 33-3
15| Shade| 68-9|65-6 | —3-3 | 8-6
55| Sun 68-7| 74-1 | +5-4 | 8-6
15| Shade} 73:4|70-3 | —3-1 | 8-7
45| Sun | 72-8|78-6 | +5-8
8 45| Sun | 55-3|60-9 | +5-6 | 11-1
10 15| Shade} 58-7 | 53-5 | —5-2 | 10-6
1 45| Sun | 55-2] 60-4 | +5-2 | 10.4
13 15] Shade| 58-1/52-8 | —5-3 | 10.3
14 45/ Sun | 55-0| 59-7 | +4-7 | 10-2
16 15| Shade} 57-1] 51-4 | —5-7 | 10-5
17 45| Sun | 53-4/58-3 | +4.9 | 10-4
19 15| Shade} 56-0| 50-6 | —5-4 | 10-4
20 45| Sun | 52-8/57-8 | +5-0 | 10-5 |}
22 15| Shade| 55-4| 49-7 | —5.7 tes ||
d
DOK OMADNAWwWpH OS
AN
OX
_— —
93 45| Sun. | 51-5/56-5 | +5-0 | 10-3 1 5 445! Sun | 51-3|56-1 | +48
95 15| Shade| 54-2|49-3 | —4-9 | 10-1 |+10.38 6 15. Shade| 55-0/52-1 | —2.9 | 7-6
96 45.| Sun | 51-6/57-1 | +5-5 | 10-5 7 45| Sun | 54-0|58-7 | +4-7 | 7-7
98 15| Shade| 54-4| 49.3 | —5-1 | 10-3 9 15| Shade| 57-4|54:4 | —3-0| 7-4
129 45/ Sun | 51-0) 55-8 | +4.8 | 10-2 10 45| Sun | 55-7|59-8 | +41 | 7-2
131 15| Shade! 53-2|47-4 | —5-8 |10-3 12 15| Shade] 58-6|55-4 | —3-2 | 7.3
132 45| Sun | 49-2/53-4 | +4-2 | 10-1 |}10-12 13 45| Sun | 57-2/61-3 | 44.1 | 7.4 |} 7.25] 24.1
34 15| Shade] 50-7/44-7 | —6.0 | 10-0 15 15|‘Shade| 60-1|56-8 | —3-3 | 7-2
$5 45| Sun | 46.4/50-3 | +3-9 | 10-0 16 45| Sun | 58-3|62-0 | +3-7 | 7-0
137 15| Shade] 57-6/51-4 | —6.2 | 10-1 |} 18 15| Shade| 60-6|57-2 | —3-4 | 7-0
138 45| Sun | 52-7/56-6 | +3.9 | 9.9 19 45| Sun | 58-7/62-1 | +3-4 |] 6.9
140 15| Shade| 53-9| 48.2 | —5-7 | 10-0 |} 9.92 21 15| Shade| 60-7|57-0 | ~3-7 | 7-1 ||
/41 45/ Sun | 49-9|54.6 | +4-7 | 9-9 || 22 45| Sun | 58-6| 62-0 | +3.4
143 15| Shade| 52-3|47-6 | —4.7 | 9.7
1 6 24 45} Sun 53-9 |57-2 | +3-3
26 15] Shade} 56-9|55-6 | —1-3 | 4-5 |}
27 45) Sun 56-8 | 59-9 | +3-1 | 4:5
29 15} Shade} 59-4/57-9 | —1-5 | 4-6
30 45) Sun 59-0 | 62:1 | +3-1 | 4-6
32 15| Shade| 61:6|60-0 | —1-6 | 4-5 4-43 | 13-3
33 45] Sun 61-2) 63-9 | +2-7 | 4.4
35 15] Shade| 63-2|61-4 | —1-8 | 4:3
36 45) Sun 62-5 | 64-8 | +2-3 | 4.2
38 15] Shade| 64-1) 62-1 | —2-0 | 4-3
39 45| Sun 63-0 | 65-2 | +2-2
146 15| Shade| 52-8|/48-3 | —4.5 | 9.9
147 45| Sun | 50-6/56-3 | +5.7 | 10-3
49 15| Shade| 54-4/49-7 | —4.7 | 10-1
50 45| Sun | 51-7/ 56-7 | +5-0 | 10-0
52 15| Shade| 54-2/ 48-8 | —5.4 | 9.8
453 45) Sun | 50-6/54-4 | +3-8 | 9.6
35 15| Shade| 51-6] 45-5 | —6-1 | 9.8
}96 45) Sun | 46-8] 50-4 | +3-6 | 9.6
158 15| Shade] 47-6|41-7 | —5.9 | 9-8
9 45] Sun | 43-2/47.4 | +4.2
144 45| Sun | 49-7/54-9 | +5-2 a)
J
\
|
=
1 7 6 45/ Sun | 33-4|34-8 | +1.4
8 15| Shade] 34-1/ 32-8 | —1-3 | 2-7}
9 45| Sun | 54-3/55-8 | 41-5 | 2.8 |
11 15| Shade| 55-3/54-1 | —1-2 | 2-5 ||
12 45| Sun | 548/560] 41.2} 2-4
14 15| Shade| 55-4| 54-2 | —1.2| 2.4 || 243] 7.9
15 45| Sun | 54-8/55-9 | 41-1 | 2.3
17 15| Shade| 55-3|54-0 | —1-3 | 2.3
18 45| Sun | 54.6/55-4 | +0-8 | 2-2
20 15| Shade} 54-9/53-4 | —1-5 | 23 |
21 45! Sun | 53-7154-5 | +0.8 |
o34 45| Sun 51-6] 57-2 | +5-6
66 15| Shade} 55-9} 52-8 | —3-1 | 8-7 |)
‘B37 45| Sun 55-0 | 60-7 | +5-7 | 8-7
99 15) Shade! 59-5|56-7 | —2-8 | 8.4
40 45) Sun 59-1|64-7 | +5-6 | 8-8
42 15| Shade! 63-4]59-:9 | —3-5 | 9-1 8:79| 36-9
43 45] Sun 62-3|67-9 | +56} 8-9
45 15] Shade} 66-6/ 63-4 | —3.2 | 9.0
46 45/| Sun 65-9. 71-8 | +5-9 | 8-9
5 15 Shade| 70-6|67-8 | —2-8 | 8-6 J
19 45| Sun 70-21 76:0 | +5:8
June 14 2h 25m. There has been a very thin cirrous haze over a considerable portion of the sky the most of the day.
June 14 2h 37m Qs, Screw turned in.
June 146 25m, No clouds near the sun; hazy near south horizon.
June 14 62 34m, Light breeze.
une 14 7h 9m 30s, Screw turned in.
416 ExtTrA METEOROLOGICAL OBSERVATIONS, 1846.
ACTINOMETER.
aie eae In Sun | Observation. Change| Effect | Mean | Sun’s ae ee In Sun | Observation. Change| Effect| Mean
of or PT ae ig | a in of of Alti- aye Or! liga yr ae in of of
First Reading. | Shade. |Begun.|Ended.| 60%. | Sun. | Group.| tude. | First Reading. | Shade. |Begun|Ended.| 60%. | Sun. | Grouy
d h m Ss. Se. div. ] Se. div.| Se. div. | Se. div.| Se. div. S ac i. om. is: Sc. div.| Sc. div.| Se. div. | Se. diy.| Se. diy,
JUNE 1, 2, 1846. JUNE 2, 3, 1846.
1 20 19 50| Sun | 45-4|52-4 | +7-0 | 218 21 0O| Sun | 46-8|50-5 | +3-7 |
21 20| Shade| 53-3/54-7 | +1-4] 5-4 22 30| Shade} 50-1| 48-8 | —1-3 | 4.9 |
22 50] Sun | 57-7|64-4 | +6-7 | 5-7 24 0O| Sun | 50-:0/53-6 143-6 | 5-2
24 20] Shade| 66-3|67-0 | +0-7 | 5-8 25 30| Shade} 53-0/51-2 | -1-8| 5-3
25 50/ Sun | 70-1/76-4 | +6-3 | 58 || 295 50.9 27 O| Sun | 52-7/56-1 | +3-4 | 5-1
27 20| Shade| 77-0/77-3 | +0-3 | 6-1 28 30| Shade| 55-4|53-7 | —1-7 | 5.3
28 50| Sun | 80-2/86-7|+6-5 | 6-2 30 O| Sun | 55-0/58-7 | +3-7 | 5-4
30 20| Shade| 87-0/87-4 | +0-4 | 6-1 31 30| Shade| 57-9/56-1 | —1-8 | 5-4
31 50| Sun | 54-3/60-8 | +6-5 | 6-3 33 0|.Sun. | 57-7|61-1 | 4. ares) eel
33 20| Shade| 61-2/61-3 | +0-1 | 6-3 34 30| Shade| 60-5|58-9 | —1-6 | 5-2
34 50| Sun | 64-7/71-0 | +6-3 | 6-3 36 0] Sun | 60-4|64-3 | +3.9 | 5-4
36 20| Shade| 71-2/71-2 | 0-0| 6-4 37 30| Shade| 63-7/62-4 | -1-3 | 5.3 |]
38 0] Sun | 75-0/81-5 |+6-5 | 6-6 |} 6-53] 40-5 39 0O| Sun | 64-5|68-5 | +4.0
39 20| Shade) 81-6|81-3 | -0-3 | 6-7 21915 0] Sun | 45-9151 | 45-2
40 50/ Sun | 53-7/60-0 | +63 | 6-7 16 30| Shade| 51-0/50-4 | -0.6 | 5-9
42 20| Shade| 60-0|59-6 | —0-4 | 6-7 ead ee 59.9 |58
43 50| Sun | 62-3/68-6 | +6-3 on leaolece i ee
19 30| Shade| 58-2/57-5 | -0-7| 6.0
21 O| Sun | 59-7|64-8 | +5-1 | 5-8
22 30| Shade} 64-5| 63-7 | —0-8 | 6-0
1 21 36 50| Sun | 41.8/47-1 | +5-3 24 0} Sun | 66-0/71-3 |+5-3 | 6-2
38 20| Shade| 46-1/43-8 | —2-3 | 7-4 |) 25 30| Shade| 71-0|70-1 | —0-9 | 6-1
39 50| Sun | 46-0/50-9 | +4.9 | 7-4 27 O| Sun | 72-6|/77-8 | +5-2| 6.2
41 20| Shade| 49-4/46-7 | —2-7 | 7-5 28 30| Shade! 77-6| 76-5 | —1-1 | 6-3
42 50| Sun | 48-4/53-1 | +4-7 | 7-6 |} 7-56] 48.4 30 0| Sun | 78-6|83-8 | +5-2
44 20} Shade} 51-7|48-6 | —3-1 | 7-9 22035 0| Sun | 3901461 1474
45 50) Sun | 50-4/55-3 | +49 | 7-6 36 30| Shade| 46-2/45-7 | -0-5 | 7.7
47 20| Shade| 54-4/52-0 | —2.4 | 7-5 oes a ins . PP ee. =
48 50! Sun | 54-3/59-5 | +5-2 on soe
39 30! Shade| 56-1|55-6 | —0-5 | 7-6
41 0| Sun | 58-7/65-6 | +69 | 7-5
42 30| Shade| 65-5|64-7 | —0.8 | 7.8
44 0| Sun | 67-7|74-7147-0| 7-9
45 30| Shade| 74-5|73-4 | —1-1 | 8-2
JUNE 2, 3, 1846. 47 0| Sun | 76-3/83-4 | +7-1} 8.2
21730 0| Sun | 443/469 | +2-6 a 4 ne oe ne 2a 8-3
31 30| Shade| 46-6| 45-7 | —0-9 | 3-3 |) a ; (2 Cee
33 0| Sun | 46-7/ 49-0 | +2.3 | 3-3 22145 O| Sun | 51-3/59-0 | +7-7
34 30| Shade] 48-6| 47-5 | -1-1 | 3-4 46 30| Shade| 58-6|56-8 | —1.8 | 9-3
36 0] Sun | 48-4/50-8 | +2.4 | 3-5 48 0| Sun | 60-0|67-3 | +7-3 | 9:3
37 30| Shade| 50-4/49-3 | —1.1 | 3-5 49 30| Shade| 66-8| 64.6 | —2.2| 9.3
39 0O| Sun | 50-3/52:9 | +26 | 3-6 |} 3-62! 15.8 51 O| Sun | 67-4.|74.4 | 47-0 | 91
40 30| Shade| 52-4/51-4 | -1-0| 3-6 52 30| Shade| 73-7|71-8 | —1-9 | 9-1
42 0| Sun | 52-5/55-:0 | 42-5 | 3-7 54 0O| Sun | 75-0/82-5 |+7-5 | 94
43 30| Shade| 54:4/53-0 | —1-4| 4-0 | 55 30| Shade| 82-1/80-2 | —1-9 | 9-5
45 0| Sun | 54-0/56-7 | +2-7 | 4.0 57 0} Sun | 83-4/91-0 | +7-6 | 9.4
46 30| Shade| 56-1|54-8 | —1-3 | 3-9 | | 58 30| Shade! 90-6/88-8 | —1-8 | 9.2
48 0! Sun | 55-9] 58-4 | +2.5 222 0 O| Sun | 66-7|73-8 | +7-
June 14 215 37m, Breeze; a few patches of cloud, none near the sun; hazy from horizon to 20° altitude.
June 24175 35m, Cloudless; haze on horizon.
June 24 204 35™. Sky very favourable.
June 24 21h 50™, Splendid sky.
June 24 215 59m 45s, Screw withdrawn.
a
i Extra METEOROLOGICAL OBSERVATIONS, 1846. 417
ACTINOMETER.
ine In Sun | Observation. | Change | Effect | Mean Sun’s aa ee In Sun | Observation. Change | Effect} Mean | Sun’s
\ of obi [bt ea of of | Alti- of On a mini rar i|| nin of of | Alti-
Reading. Shade. |Begun.|Ended. 60s. | Sun. | Group.| tude. | First Reading. Shade. Begun.|Ended| 60%. | Sun. | Group.| tude.
Lm Ss Se. div.| Se. diy.| Sc. div. |Sc. div.| Sc. div. C d h m s. Se. div.|Se. diy.| Se. div. | Se. div.] Se. diy. ©
JUNE 2, 1846. JUNE 2, 1846.
2 7 O| Sun 37-9 | 43-8 | +5-9 2 23 38 (0) Sun 43-8 | 50-2 | +6-4 |
8 30| Shade} 40-7 | 34-0 | —6-7 | 12-5 |) 39 30} Shade| 49-2/46-3 | —2.9 | 9.6 |)
10 O| Sun 69-2 | 75-0 | +5-8 | 12:3 41 0} Sun 49-1| 56-2 | +7-1 | 10-0
11 30| Shade| 71-3| 65-1 | —6-2 | 11-6 42 30} Shade| 55-2) 52-3 | —2.9 | 10-0
13 0] Sun | 66-7| 71-8 | +5-1 | 12-3 |}12-83] 51-5 44 0| Sun | 55-4|62-4|/+7-0 | 9-5 |} 9-79! 56-6
14 30| Shade} 68-6/ 60-4 | —8.-2 | 13-7 45 30| Shade! 61-5 | 59-3 —2-2 | 9-5
16 0} Suo 62-6 | 68-4 | +5-8 | 13-9 47 0} Sun 62-7| 70-3 | +7-6 | 10-0
17 30) Shade| 65-7| 57-7 | —8-0 | 13-5 48 30| Shade| 69-7| 67-2 | —2-5 | 9.9
1/19 O} Sun 59-9| 65-1 | 45-2
§ 28 0; Sun 63-7| 71-6 | +7-9
29 30) Shade} 70-9/ 68-8 | —2-1 | 9:8
} 31 0} Sun 72:1| 79:7 | +7-6 | 9-8
32 30] Shade| 79-0|76-7 | —2-:3 | 9-8
/ 34 0; Sun 79-8 | 87-1 | +7:3 | 9-8 9-81] 53-3
35 30) Shade} 86-1 | 83-3 | —2-8 | 10-0
37 0} Sun 62-3| 69-3 | +7-0 | 9-7
38 30| Shade| 68-4| 65-7 | —2-7 | 9.8 |}
40 0} Sun | 69-0| 76-2 | +7-2
|
4 43 0} Sun 80-6 | 87-4 | +6-8
| 44 30| Shade} 84-6| 78-2 | —6-4 | 11-8
146 0| Sun | 78-4/82-4 | +4.0 | 12-5
| 47 30| Shade | 78-9 | 68-2 |-10-7 | 13-9
149 0} Sun 68-4 | 70-8 | +2-4 | 13-4
| 50 30| Shade| 65-7 | 54-4 |-11-3 | 14-8
52 0| Sun 75:3|79-8 | +4-5 | 13-8 |-12-89}| 54-6
}53 30| Shade} 76-0| 68-7 | —7-3 | 13-2
155 0| Sun 71-5| 78-6 | +7-1 | 13.2
+) 56 30| Shade| 76-3 | 71-3 | —5-0 | 11-7
58 0; Sun 74-2 | 80-4 | +6-2 |11-5
59 30| Shade} 78-3| 72-6 | —5-7 | 12-0
0
Sun 74-5 | 80-8 | +6-3
m0) Sun | 68-6|75-8 | +7-2
IG 30| Shade| 75-0|72-7 | -23 | 9.8
WS 0] Sun | 75-8/83-6 | +7-8 | 10.2
9
ll
30| Shade| 82-6| 80-0 | —2.6 | 10-5
0/ Sun | 83-3/91-3 | +8-0 | 10-6 |$10-33| 55-6
~}12 30} Shade| 65-4| 62-9 | —2.5 | 10-5
|14 0} Sun | 66-3| 74-4 | +8-1 | 10-5
}15 30/ Shade} 73-9| 71-6 | —2-3 | 10-2
117 0} Sun | 74-7/82-3 | +7-6
June 2422h 7m—20m, Glass plate removed from the instrument; replaced after 20™.
June 2422 9m 45s, Screw turned in.
June 24 22h 13m, Two very small patches of cloud formed to SE. ; sun very clear.
June 24 22h 36m 458, Screw withdrawn.
A June 24 22h 43m—23h 2m, Glass plate removed from the instrument; replaced after 2™,
* June 24 23h 8m, Patches of cumuli appearing on various parts of the horizon.
is June 24 23h 12m 15s, Screw withdrawn.
: June 24 23h 43m, Cumuli increasing; dry thermometer 77°5 ; wet thermometer 62%4.
June 164 235 44m, A few cumuli about the horizon.
| | June 172 0b 31™ 308. Screw turned in.
June 174 04 36™. One set of observations missed.
T
; AG. AND MET. ozs. 1846. ON
418 ExtTrA METEOROLOGICAL OBSERVATIONS, 1847.
ACTINOMETER,
AEE eae In Sun | Observation. | Ghange| Effect| Mean | Sun’s ae In Sun | Observation. Change| Effect | Mean
of OF | Neale Ls of of Alti- of ory. (Gh = Ilene nul ee of of
First Reading. | Shade. |Beoun.|Ended. 60s. | Sun. | Group. | tude. } pirst Reading. Shade. /Begun.|Ended.| 60°. | Sun. | Group.
dis. hi mh yah: Sc. div.|] Sc. div.| Se. div. | Se. div. Suse | 2 da? hi~xi. oie; Se. div. | Se. div.| Se. div. | Se. div.] Sc. div.
JULY 2, 3, 1847. JULY 2, 3, 1847. B
2 21 23 12| Sun 43-2|57-7 |+14-5 2 23 12 12| Sun 39-9} 49-0 |+ 9-1 i
24 42| Shade| 58-2/57-9 |— 0-3| 14-7 13 42] Shade| 46-1) 38-1 |— 8-0| 17-6
26 12} Sun 63-5 | 77-8 |+14-3 | 14-9 15 12} Sun | 41-2)51-3 |410-1) 18-1
27 42) Shade} 81-3)| 80-4 }— 0-9] 15-0 16 42| Shade} 49-0/41-0 |— 8-0} 17-5 |}17-70| 4
29 12) Sun 11-7 | 25-7 |+14-0| 15-0 |+15-04 | 46-9 18 12} Sun 43-8 | 52-7 |4+ 8-9| 17-3
30 42) Shade} 25-9 | 24-8 |}— 1-1] 15-0 19 42] Shade| 49-1/ 40-2 |— 8-9| 18-0
32 12} Sun 30-0| 43-7 |+13-7 | 15-2 21 12} Sun | 43-0|52-3 |+ 9.3
33 42| Shade| 43-6| 41-7 |— 1-9] 15-5
35 12) Sun 46-7| 60-3 |4+ 13-6 2 23 40 12} Sun 44-1) 54-5 |4+ 10-4
| 41 42) Shade| 52-9/47-8 |— 5-1] 15-9
43 12} Sun 51-9 | 63-1 |411-2)| 16-6
2 21 57 12| Sun | 28-8] 40-2 |4+11-4 Fe © Snel eee es er :
un 59-5 | 70-2 |+ 10-7) 16-6 |+16-69
58 42] Shade| 38-0| 30-8 |— 7-2|18-8 |) 47 42| Shade| 68-3] 62-2 |— 6-1] 17-3
2 22 O 12; Sun 34-8 | 46-6 |4+11-8 | 19-2
1 42] Shade | 45-7) 38-1 |— 7-6] 18-7
3 12} Sun 41-5 | 52-0 |+ 10-5 | 18-7
4 42| Shade} 48-9| 40-2 |— 8-7/18-2 |}18-78 | 50-8
6 17| Sun 44-2| 52-8 |+ 8-6] 18-1
7 42| Shade} 49-2|39-0 |—10-2] 19-6
9
0
2
12) Sun 42-1} 52-3 |+10-2| 19-4
42| Shade| 49-4/41-1 |— 8.3] 18-3 ||
23 12) Sun 66-3 | 78-5 |+ 12-2) 17-9 |}18-36
2 22 39 12|/ Sun 25:0 | 35-2 |+10-2 27 42| Shade| 85-4] 77-9 |— 7-5} 19-6
40 42| Shade| 32-1] 23-3 |— 8-8] 18-4 |) 29 12) Sun 81-4/| 94-1 |4+12-7
42 12} Sun 26-7 | 35-7 |+ 9-0/17-8 |;18-10 | 54-2
43 42} Shade| 32-1) 23-3 |— 8-8) 18-1 3m 2pia 2 \sSun 19-7 | 30-4 |4+ 10-7
45 12} Sun 26-2/ 35:8 |+ 9-6 16 42| Shade] 28-8} 22.9 |— 5-9] 17-3 }}
18 12} Sun 26-9 | 39-1 |4+12-2] 18-3
19 42} Shade| 37-8| 31-6 |— 6-2| 17-7
9 22 50 12| Sun 38-1/46-7 |4 8.6 2 12) Sun 35-0 45-9 +10-9| 18-3 |+18-33
22 42] Shade} 44:-0| 35-4 |— 8-6] 19-6
51 42| Shade; 43-7|34-0 |— 9-7] 18-3
= 24 12) Sun 37-8 | 48-8 |+11-0| 19-0 if
53 12} Sun 37-0 | 45-6 |+ 8-6]17-9 |}18-07 | 55-0 é =
25 42| Shade! 47-2) 39-7 |— 7-5| 18-1
54 52| Shade} 40-7|31-8 |— 8-9|17-9 |} 27 12] Sun | 41-8] 52-0 |+ 10-2
56 12} Sun 34-3) 43-8 |+ 9-5
3 2 56 £2)|\4Sun 23-4 | 34-7 |4+11-3
57 42) Shade} 32-9] 27-0 |— 5-9} 17-2
2 22 59 12) Sun 36-8 | 42:4 |+ 5-6 59 12|) Sun 30-7 | 42-1 |4+11-4) 16-5
223 0 42] Shade| 37-2) 23-8 |—13-4| 18-6 |} 3 3 0 42| Shade} 41-0| 36-7 |— 4-3} 16-2
2 12) Sun 45-8 |50-7 |+ 4.9] 19.4 2 12) Sun 40-9 | 53-2 }+12-3) 17-1 |}16-81]|4
3 42| Shade} 45-6| 30-0 |—15-6/ 18-8 |}18-38 | 55-6 3 42| Shade| 52-0/46-7 |— 5.3/ 16-9
5 12| Sun 30-4] 31-8 |+ 1-4] 16-0 5 12} Sun 50-7| 61-7 |4+11-0| 16-6
6 42| Shade] 24-0] 10-4 |—13-6] 19-1 6 42} Shade} 59-8/53-9 |— 5-9} 17-2
8 12} Sun 13-2| 22-7 |+ 9-5 8 12} Sun 98-2| 69-8 |+11-6
July 24, 1847. The cylinder of the actinometer having burst in the previous winter, the broken parts have been replaced by new or
July 24 215 23m, Observations made at east end of Observatory.
July 24 215 30™, Dry thermometer, 63°:7 ; wet thermometer, 59°-7.
July 24 21" 57m, Observations made on the south side of Observatory.
July 24 22h 10™, Barometer, 29:945 in.; dry thermometer, 65°°2; wet thermometer, 58°-7.
July 24 22h 39m, Qbservations made at west end of Observatory.
July 24 22h 52m, Dry thermometer, 68°°3; wet thermometer, 61°-0.
July 24 22h 59m__23h 9m, Glass plate removed from the instrument; replaced after 9m,
July 24 23h 44m, Dry thermometer, 71°-6 ; wet thermometer, 62°-5.
July 34 1 22m, Dry thermometer, 75°0; wet thermometer, 61°7; too much wind.
July 34 2h 17m, Dry thermometer, 75°°6; wet thermometer, 61°-9.
ExTRA METEOROLOGICAL OBSERVATIONS, 1847.
419
ACTINOMETER.
y Makerstoun .
In Sun | Observation. | Ghange| Effect| Mean | Sun’s] jean Time | In Sun Observation. Change| Effect | Mean | Sun’s
OF Al--Thal te of of Alti- of (O52 | |S pea RN ME 821 of of Alti-
Shade. Begun.|Einded. 60s. Sun. | Group. | tude. | pings Reading. Shade. Begun.|Ended. 608. Sun. | Group. | tude.
|Se. diy.|Sc. div.| Se. diy. | Sc. div.| Sc. div. a Gh i, m5 ES Se. div.| Se. div.| Se. div. |Se. div.! Se. div. C}
JULY 3, 1847. JULY 3, 1847.
Sun 29-7 | 39-6 |+ 9-9 3) 7) 16502) sun 55-0 | 59-3) +4.3
Shade} 37-0| 29-3 |— 7-7| 17-6 ] 17 42} Shade} 58-6| 54:8 —3-8 | 7-8
Sun 31-9) 41-8 |+ 9-9} 18-0 19 12] Sun 55:8} 59-6 +3-8 | 7-9
Shade| 38-3 | 29-7 |— 8-6] 18-2 20 42| Shade} 58-6] 54-3! —4.3 | 7-9
Sun 31-8 | 41-1 |+ 9-3) 17-4 |+17-76 | 39-9 22 12| Sun 55:0} 58-4 43-4 7:6
Shade! 38-4|30-8 |— 7:-6| 17-4 | 23 42) Shade! 57-3} 53-2) —4.-1 | 7-3 FAQ Ses
Sun 33-9 | 44-1 |+10-2/ 18-0 25 12) Sun 53-8] 56-8) +3-0 | 7-1
Shade} 41-7 /33-7 |— 8-0/| 17-7 | 26 42| Shade] 55-8) 51-6) —4.2 | 7.3
Sun 36-8 | 46-0 |+ 9-2 28 12) Sun 52-0} 55-2) +3-2 | 7-5
29 42) Shade| 53-9} 49-6) —4-3 | 7-0
Sun 39-6/51-8 |4+12-2 31 12] Sun 50-0} 52-3 | +2.3
Shade} 50-:9| 45-8 |— 5-1 | 16-6
Sun 49-4 | 60-2 |+10-8| 16-3 8) 7h 40) TR) Hsien 46-2} 47-4| 41-2
Shade} 58-7|52-7 |— 6-0| 16-8 41 42) Shade} 46-0} 41-4) —4-6 | 5-5
Sun 55-9 | 66-6 |4+10-7| 16-8 |}16-44 | 33-3 43 12} Sun 41-3} 41-9) +0-6 | 5-4
Shade | 65-2|59-0 |— 6-2] 16-4 44 42} Shade! 40-3) 35.4) —4.9 | 5.4
Sun 62-2|72-0 |+ 9-8/ 16-2 46 12| Sun 35-1 | 35-5] +0-4 | 5-1
Shade} 70-2|63-7 |— 6-5|16-0 |} 47 42| Shade} 33-8] 29-2| —4-6 | 4.8
Sun 66-5 | 75-7 |+ 9-2 49 12} Sun 29-1} 29-2) +0-1 | 4-6 4-67 | 5-3
50 42] Shade] 27-3| 23:0] —4-3 | 4.3
Sun 50-3 | 61-0 |+ 10-7 52 12) Sun 22-8}] 22.8 0-0 | 4.2
Shade | 60-2/56-3 |— 3-9] 14-2 |) 53 42] Shade| 53-4} 49-3) —4-1 | 4.0
Sun 59-9 | 69-8 |+ 9-9) 14-3 55 12) Sun 49-0| 48-8} —0-2 | 4.2
Shade} 68-3 | 63-4 |— 4-9] 14-6 56 42| Shade] 46-8] 42-1 | —4-7 | 3.9 }
Sun 66-6 | 76-2 |+ 9-6| 14-5 |+14-40 | 26-4 58 12} Sun 41-3} 39-8) —1-5
Shade} 74-8|70-0 |— 4-8} 14-2
Sun 37-7 |46-9 |+ 9-2] 14-2 3° 8) 3) 12)sSun 24-4 | 23-2) —1-2
Shade} 45-6| 40-4 |— 5-2} 14-8 4 42) Shade| 21-2] 16-6) —4-6 | 3.2
Sun 43-5 | 53-6 |+10-1 6 12) Sun 15-4| 13-7) —1-7 | 2.5
7 42| Shade| 47-1} 43-2} —3-9 | 2.0
Sun 51-0 | 59-7 |+ 8-7 9 12) Sun 42-2} 40-0) —2-2 | 1-9
Shade} 59-1|55-8 |— 3-3)| 11-3 10 42| Shade} 38.2) 33-8) —4.4 | 2.3 2-29 | 3-0
Sun 58-0 | 65-3 |+ 7-3} 10-9 12 12) Sun 32-5] 30-5) —2-0 | 2-8
Shade | 64-6 |60-6 |— 4-0] 11-2 13 42| Shade} 28-8] 23-6) —5.2 | 3-0
Sun 62-8|69-8 |+ 7-0} 11-1 |}11-23 | 16-7 15 12| Sun 23-4} 21-0) —2-4 | 2-1
Shade} 68-9| 64:6 |— 4-3] 11-3 | 16 42| Shade} 19-2] 15-4) —3-8 | 0-8
Sun 66-7 | 73-6 |+ 6-9] 11-4 18 12) Sun 13-8) 10-1; —3-7 | 0-0
Shade | 72-2)67-5 |— 4-7] 11-4 19 42| Shade] 8-3] 4-7) —3-6 | 0-0
Sun | 69-2}75-8 |+ 6-6 21 12} Sun 3-:0|—0-6 | —3-6
32 3h 32m. Dry thermometer, 76°-0 ; wet thermometer, 62°8.
Dry thermometer, 74°°6 ;
Dry thermometer, 71°7 ;
Dry thermometer, 68°4 ;
Observations made near the rain-guage.
The sun is about 1}° distant from a ridge of land.
readings probably not affected by this.
wet thermometer, 62°-6 ; barometer, 29-859 in.
wet thermometer, 60°-7.
wet thermometer, 59°-7 ; barometer, 29°825 in.
58™, The last sun observation not good ; the sun near trees.
15™, The sun just touches the projecting branch of a tree, the
18™, About 0°4 of the sun’s face visible. 21™ 128. Sun invisible.
420
Feb.
TEMPERATURE OF WATER IN THE COTTAGE AND GARDEN PUMP-WELLS, AND IN THE RIVER TWE aD.
ti
Gott. M. T.
15.
15.
15.
15.
23.
24.
29.
March 1.
. Larix Europea in leaf.
d.
March 9
April
May
15
23
30
a ee ee
ExtTRA OBSERVATIONS, 1846.
DATES OF FLOWERING AND LEAFING OF PLANTS, &e.
Primula acaulis in flower. Crows coming.
Ranunculus Ficaria in flower.
Crategus oxyacantha in leaf.
Corylus Avellana, catkins open.
Crateegus oxyacantha, leaves more de-
veloped.
Two bats seen; one seen by the gardener
10 days ago. Toads coupling.
Pulmonaria officinalis in flower.
Buxus sempervirens in flower.
. Mercurialis perennis in flower.
. Lychnis diurna in flower.
. Sambucus nigra in leaf a week at least.
Larix Europea in flower.
Ulmus montana in flower.
Fragaria vesca in flower,
. Lamium purpureum in flower.
. Prunus spinosa in leaf.
Cottage. Garden.
h. % .
5 we 444 46-6
5 ws 444 ce
5 Ape: i es} secesseee 46°9
5 4 Ail acosse) 470
5 BrObanecor 2 2 (0159 46°95
= cea Aten 47-7
5 - 44:6 48:1
5 45:2 48°6
* June 184 18h.
March 1.
April 3.
Sept. 17.
Oct. 20.
31.
. Viola canina in flower.
. Frogs coupling.
. Humble bee seen.
. Cerasus Padus in leaf at least a week.
. Two swallows seen (Hirundo rustica.)
. Agraphis nutans in flower ; flower-stall
. Pyrus aucuparia in leaf two or three day,
. Fagus sylvatica, majority of leaves off,
. Ulmus montana, id.
ZEsculus Hippocastanum in leaf,
i
at
Mf
Swallows seen at Kelso.
very short, having been stunted by th
late frost. i
The most of the swallows seem to hay
gone off to-day. ,
Fraxinus excelsior, majority of leaves ¢
one tree. r
Platanus occidentalis, majority of lea
off.
.
€}
Fi
Gott. M. 7. Tweed. Gott. M. T. Tweed
a) Bin! ° aly ait
Virteey 8) 7/ ast June » 17.49
4 8 73°3 17° 1s
4193 67:6 13”
5 7 73:9 18 183
5 19 68°6 19 183
6 9 73°4 20" %
(he its) 66-7 21 183
16 8 75:2
River Tweed slightly discoloured by rain.
OBSERVATIONS
IN
MAGNETISM AND METEOROLOGY,
\"
a
MADE AT
MAKERSTOUN IN SCOTLAND,
IN THE OBSERVATORY OF THE LATE
ENERAL SIR THOMAS MAKDOUGALL BRISBANE, BART., G.C.B., F.R.S.,
PRESIDENT OF THE ROYAL SOCIETY OF EDINBURGH,
From 1847 to 1855,
PRINCIPALLY UNDER THE DIRECTION OF
JOHN ALLAN BROUN, F.BS.,
ASTRONOMER TO HIS HIGHNESS THE RAJAH OF TRAVANCORE.
BEING A SUPPLEMENT TO VOLUME XXII. OF THE TRANSACTIONS OF THE
ROYAL SOCIETY OF EDINBURGH.
EDITED BY
BALFOUR STEWART, M.A.,
DIRECTOR OF THE KEW OBSERVATORY.
EDINBURGH:
PRINTED BY NEILL AND COMPANY.
MDCCCLX.
Se,
,
aS
co
PREFACE.
Tue Makerstoun Observations down to the commencement of 1847 were published
at length in Vols. XVII. XVIII. and XIX. of the “ Edinburgh Transactions.”
Some time before the lamented decease of Sir T. Maxpoucatt BrisBanez, the
munificent founder of the Makerstoun Observatory (which took place on the 27th
January 1860), it had been determined to continue the publication of the “ Ob-
servations” down to the year 1855. ‘This was carried into effect at the joint ex-
pense of the Royal Society of Edinburgh and of Sir T. M. Brispanez, who had the
satisfaction of seeing these sheets in proof before his death.
The Editor thinks it right to state somewhat more explicitly than has been
done in the “ Introduction” which follows, the names of those who have been
from the first connected with the Makerstoun Observatory, and more especially
during the period to which the following pages refer; and this not only in token
of acknowledgment to those whose skill and labour produced valuable results, but
as a guarantee to men of science that the observations treated of in this volume
were carefully made and faithfully recorded.
The following statement is partly taken from a Report on the Makerstoun
Observatory, made to General Sir T. M. Brissane by Mr Joun ALLAN Brown,
and dated 1850.
The building was commenced early in 1841, but no observations were made
till July of that year. The system adopted was limited, in the first instance, to a
few daily observations, together with a participation in the complete series on
term days.
In April 1842, the original observer, Mr RussEL, having resigned, the Obser-
vatory was placed under the direction of Mr Jonn ALLAN Broun. In the be-
ginning of 1843 Mr Joun WELSH was, at Mr Broun’s recommendation, appointed
as assistant, and the scheme of the observations was very largely expanded. It
was next thought desirable to obtain the diurnal laws of magnetism and meteor-
ology, in consequence of which Mr Broun suggested the addition of another
1V PREFACE.
observer, and Mr ALEXANDER Hoee, an ingenious mechanic who had been engaged
in the construction of the Observatory (which was performed chiefly under his
superintendence), and who had been afterwards employed as an observer on Term
days, was in consequence appointed in the end of 1843.
In 1844 and 1845, a series of observations of all the magnetical and meteoro-
logical instruments was made hourly except on Sundays. It was originally pro-
posed that this hourly series should extend through only two years; in 1846,
therefore, the same system was adopted as in 1843. A more limited series of ob-
servations was made in the years 1847, 1848, and 1849.
After 1845 the ordinary observations at Makerstoun were chiefly made by
Messrs WELSH and Hoge. The latter continued the observations in 1849, and
thereafter, in accordance with instructions left by Mr Broun for his use, who also
examined the Observatory in 1851.
In the autumn of 1849 Messrs Broun and Wetsu left Makerstoun for Edin-
burgh, where the former continued the preparation of the last volume of the Maker-
stoun Results* for the press, Mr WELSH aiding in the reductions and preparations
of tables ; and with this work they were occupied till the spring of 1850.
In that volume the observations were fully discussed until the beginning of
1847, while certain results were obtained extending to November 1849.
It is the observations from 1847 to 1855 that are chiefly discussed in this
Appendix ; while, at the same time, certain general conclusions are drawn from
the whole series of observations.
From 1849 Mr Hoce was almost entirely responsible for the accuracy of the
observations—a duty for which his experience and fidelity rendered him well
qualified. Mr Broun and Mr WeEtsu occasionally inspected the instruments.
The former left England for India in November 1851. Mr Wetsu had already, in
1850, been appointed to the charge of the Kew Observatory, and continued, so far
as his other duties permitted, to take an interest in the Makerstoun Observations,
and aided the Editor of this Appendix with his valuable advice down to the period
of his premature decease in May 1859.
* Edin. Trans., Vol. XIX.
TABLE OF CONTENTS.
NO. PAGE
GENERAL REsuLTs oF THE MakEeRsTOUN OBSERVATIONS—
System of Observation in different YOATS, vee serseeeeeceeteeseneeecee eee eenseeeeeces D) xi
~ Maeneric Dectinatron—
Mean Declination and Secular Change, alatalafetetalatolat«?sfateteTaraistatalsfetefatslclalelctotela's' saree eee tines 4 Xil
Annual Variations—
Mean Declination, «++... +20s+..s+sssecenseeceeeeeeseceeenes Letemiaee ai eiaisins s ptisicieieseceapacre 7 Xi
Difference of Daily Means from the Monthly Means, «--.+++..+-+---:0+ssseeeeee 11 xiv
Diurnal Ranges, sbala\olalot state} nlelaials\e\s\atr\s(a)e\ix'n\ a-ha /e\afaiele elein\el\cieinitie/ajcjaleinjsiejaig/lela(e|=isisejesaisieieieiei deveicie's 12 XV
Ranges of the Monthly Mean Diurnal Variation, ....--+--0.-sssseeeseseseee ene 13 xvi
Effect of Disturbance on the Range of the Diurnal Variation, «.............. 15 Xvi
Mean Difference of an Observation from the Monthly Mean,.................. 16 xvii
Number of Positive Differences, resafcreisrainiciste wislate slat svainieraicatticlevpin wrsGininnieiosinciate Dae eetene 17 XVili
Probable Error of an Observation from the Monthly Mean, «..+..........++++ 20 xviii
Monthly Variations—
‘ ; ; Mean Declimation, .-+.-...c10.... secs sce cce eee e sc ece ence er ece ent eeetecnecsrseessecnes 91 xix
re Diurnal Ranges, binis{aleis(-iaisi=[=ivisteielsie‘e\a/alnis'e(e\s afejeinieieveis sic\s\e'sivisialele s(x sais e{ulain'e/e)niciaisie(sis vein ciaieleis ves 99 xix
Mean Difference of an Observation from the Monthly Mean,.-..-..-........... 24 xix
Diurnal Variations— |
Method of combining Results for Different Years, «---..-.-+0.:-sseeeereeeecenee 26 rox
Results from all the Observations, for each Month,:--.-+...+--:+-ssesseeeeserees 28 xxi
Results from all the Observations, for Groups of Months,---...--++..+see..-+- 32 xxii
Results from Undisturbed Days, for Groups of Months, --.+-.-.+0...-..se00 36 XXxili
Effect of Disturbance on the Mean for a Month and for the Year, -.------- 38 XXIV
Effect of Disturbance on the Mean for each Hour, --------++-+-+eeeeeseeeeeeeeee 39 XXiv
Frequency of the Positive and Negative Excursions from the Hourly Mean
POSUtION, --- 22+ -2-ee ee cece eee cet ee erence tener ere tnneercs see sancreceasersseesroscces 40 XXV
Sums of Disturbances from the Hourly Mean Position,...---...-++-..+++++++++ 42 XXvi
Mean Excursions of the Magnet from the Monthly Mean Position for each
HOUT, 2-2-2020 cece ce sencccencseccenevsrnscncccnensnes seers vessasenstecesseseetessenes 43 XXVii
Probable Error of an Observation from the Monthly Mean, .......++....+++« 46 = xxviii
Variations with reference to the Moon’s Hour-Angle,--.+-+-+1s0+1ssssseseeeeene 47 Xxix
vi
CONTENTS.
HorizontaL Component oF MaGnetic Force—
Horizontal Component in Absolute Measure, ------
Secular Change from Observations of Absolute Measure, «--+++++++++++++-+++
Mean Values of the Variations of the Horizontal Component ------++++---.-
Comparison of the Secular Change from Observations of Absolute Measure
with that from Observations of the Bifilar Magnetometer,.-.--++-----+--
Effect of Disturbance on the Mean Value, «+++.-+1esssseeeersencereeneeereeeeeees
Secular change employed in Deducing the Annual Variations,--.--.-..--.---
Annual Variations —
Mean Horizontal Component, -++-+++:++s+sereeeecessseeeeeeeeseeecencercteseesnenecans
Foot-note on the Annual Period Deduced from the Observations at Toronto
and Munich, sieisieisielelarotaiola; »:a1eTotsia\s\ofa/alalb iota olorale tele at aimee tenystsietetinteleelcts\e.e bia‘elerelv; sia uieinistetertatie
Effect of Disturbance on the Monthly Means, --+--.+-...-s+0+-++--
Mean Horizontal Component from Undisturbed Days, -+-+-+++++++++++se1++ +++
Differences of the Daily Means from the Monthly Means, ---+-+---++++-++++---
Diurnal Ranges, ©:n'a10 0 o(eie eleio.ejele oleinio\a,eteiaiaieie sieipie ds cieini@ MteuaInIa RENTER re ENaT Inia duals > oy Diale'< pial ge ancaipesete
Ranges of the Monthly Mean Diurnal Variation, from all the Observations
and from Selected Days, -+-+--++s+sseeeeeseereeseeeeneeesseeeeecreeseeererensees
Mean Difference of an Observation from the Monthly Mean,.---.-++-+++++++++
Probable Error of an Observation of the Horizontal Component, «-.--.-+--+-
Number of Observations greater than the Monthly Mean,.--.--+-.+0+++-...++
Monthly Variations—
Mean Horizontal Component, ajito o/s Sha iafare's ska eR Prieto eee cto ais ctainisre(» oceisia gio aan
Diurnal Ranges, ---+++-+seeeesseeeceeeeecscneeeesenetenceerer tases ren aeensessewensenaes
Mean Difference of an Observation from the Monthly Mean,
Diurnal Variations—
Results from all the Observations, for each Month,--------+++++++sseeeeeeeserees
Results from all the Observations, for Groups of Months,....-.--+++.++++++ ++
Results from Undisturbed Observations, for Groups of Months, --.-------..
Effect of Disturbance on the Hourly Means, «-++--+++--sseeeeseeesee eee sree scans
Frequency of Positive and Negative Departures from the Hourly wat
Positions, mala meferalelel minal pieieteiereleierereivistalalainiein’eletatsleialiatetatetelaicbekate stslata aleia’ei eis) e sig) aipislaieiaaeitale ite teed
Mean Difference of an Observation from the Hourly Mean Position for
Cach Hour, ----20+::sceteceeeeeeeeeeceeecsseeeseeueeeceoes eg cinielvie bios «leap ieicieee eit
Probable Error of an Observation from the Monthly Mean,..-...---.+++..+++
Variations with reference to the Moon’s Hour-Angle, -++--:+++++ssesesseeeees
VERTICAL ComPonENT OF MaGnetic Force—
Vertical Component in Absolute Measure, -::-- ales eaisialeisiois sw oie,areis es este miter etees
Adjustment of Balance Magnetometer in different Years, «-+--++++++++eseeee+-
Yearly Means of the Variations of the Vertical Component with the Secu-
lar Change, -++++sesseesssceeseceeec eee eencecneerseeeceseeeecesesnenseeeescstecees
Effect of Disturbance on the Yearly Mean, «--.+.+::+-sseseeessseeueeenseeeeeeeees
NO.
48
49
51
53
54
58
56
57
58
59
60
61
63
64
65
66
67
68
69
70
71
72
74
76
78
79
81
82
83
85
PAGE
XXXil
CONTENTS. Vil
NO. PAGE
Annual Variations— é
Mean Vertical Component, Slalblmais = PneielGie/aTa/olsiate cfefa'e|stetetaraisintalts eteye eleisininiat siieieaefeisinis'eis s sisies 86 xlvi
Mean Change of the Vertical Component from Month to Month,.-..-....+-. 88 xlvii
Effect of Disturbances on the Monthly Means, «.--.....+++ Stee eee cesses cece 89 xlvii
Difference of the Daily Means from the Monthly Means, ----.--++-++seceeeees 90 xlvii
Diurnal Ranges, stoked statefe totes ctetare cela ctara(s ofats clare isha’ olakije)e siosets aiste aici tatots wlayenticta eis! ala tele ef dee «vsieiesaee 91 xlviii
Ranges of the Monthly Mean Diurnal Variations from all the Observations,
and from: Selected Days) <6 ices cste> yasilsain» sian’ ipii ate soalsl ofeieis since weprommieinfehs 192, xlix
General Law of the Ranges of the Undisturbed Mean Diurnal Variation, 93 xlix
Mean Difference of an Observation from the Monthly Mean,.--....+..-.++8++ 94 xlix
Number of Observations greater than the Monthly Mean,..+...+0. ...sesee0e+ 95 xlix
Monthly Variations—
Mean Vertical Component, tae ee are elererciaet ore tate tases sleeved erst ele nc iislesansieteleininalesiobeaenn ce 96 ]
ADisirperra ol) Eri ex ee een ao todo a Seals Raion aia oR aaupicinsnjsive nese aunsornareonere 97 li
Mean Difference of an Observation from the Monthly Mean, «...+++--+-+++--+ 98 li
Diwrnal Variations—
Results from all the Observations, for each Month.--+..+-.+:-seseeeeeeeee sevens 99 li
Results from all the Observations, for Groups of Months,----.+++.++++0e+-.ee+ 100 liii
Results from Undisturbed Observations, for Groups of Months, .-.----.----- 101 liii
Effect of Disturbance on the Hourly Means, ....-.--.ssessseesescseennenenscneees 102 liv
Frequency of Positive and Negative Departures from the Hourly Mean
ED aibioni tee SePRM aR Ne Centeeeee Seen Er, ahh La cata 104 ly
Mean Difference of an Observation from the Monthly Mean Position for
CaCh Hour, verreersescecrececereerceeeeenceree sere estes essere see eeesetecnree ees eeeees 105 lvi
Mean Difference from Undisturbed Mean Positions for each Hour, -----.--- 108 lvi |
Variations with reference to the Moon’s Hour-Angle, «++-.+.ssseessssseeeeeres 111 lvii
Macyetic Dip—
Places of Observation for Different Epochs and General Remarks, ----..--- 113 lviii
Observations in 1849 on Original Dip-Pillar, «-----+-:se-seseeesseeen serene eeeees 114 lviii
Observations to determine Local Hrror, --+--+.:..-.eeseseseeereeseeereeeeeeeeeres 115 lviii
Secular Change, Reet cte te eta catctiralnisyeis[aversiessiaieVoinvais eis aieveslaisietelsisjslsjelslassiayelo vlessicieteelserte ce ets ee 116 lviii
Result of Observations with Inclinometer in different Azimuths, --.-..-..-+. 117 lix
Observations with the Inclinometer of the Royal Society of Edinburgh, --- 118 lix
‘Variations of Magnetic Dip, deduced from the two Component Magnetometers—
Similarity between Results for Magnetic Dip and for Horizontal Com-
MOTI CT bag e MMe 4n-itaicaegneeanvetnsiiecic<ecenrrileBereinenrtinaacece * 119 lix
Secular Change, -+s+e-ceessessses senses crcetencnccsseesesecescnesercreeeesetsserensenes 120 lix
Effect of Disturbance on the Yearly Mean, «---:+--.+::sesseeceeserereceesereeenes 121 lix
Annual Period, from all the Observations, --++->++++++s1sesseee senses eee eeeeeeene 122 lix
Annual Period, from Undisturbed Observations, -+++++++:ssscsssssseeeeeereees 123 Ix
Annual Variation of Ranges of Monthly Mean Diurnal Variation, --------- 124 lx
Variations of Magnetic Dip with the Moon’s Age,-++-:s+++++eerseereesseeneee ees 125 Ix
vr CONTENTS.
Variations of Magnetic Dip with the Moon’s Declination,.-.-..+.++.-.+...-+.+. 196
Remarks on the Variations of Ranges of Magnetic Dip,.--+-.+-++-++++e+seee.e 127
Diurnal Variations—
Results from all the Observations for each Month,.---.-.+++:+eseseessseseeeneee 128
Results from all the Observations, for Groups of Months,:---++1.+ --sessseee. 129
Results from Undisturbed Observations, for Groups of Months,:....-...-... 130
Effect of Disturbance on the Hourly Meas,.--+--+-++0-+seerseeeeeeeessneeeeen ene 131
Variations with reference to the Moon’s Hour-Angle---...+::+++sse-ssseseeeeee 132
Torat Macnetic Force—
Absolute Value,-----+---+:+sseenee senees we eleistdsiasiaeie teste sitiaismle's sic'e ce o's'swielsera ceaeetere 133
Secular Change, ois op. 1n wip ais YoValbl wisi wise eieye ‘sais avis eleiela aivieletelommataeeCietsie sine cle'elciniel cle scleeeeeerterae ere 134
Effect of Disturbance on the Yearly Mean Value,.--...---+:.s+eseseeeeneneneeeee 135
Anntial Period,..---+scs+ssereesrsceceescnccssrncoeesarssecerscensececssensecn sosensersnes ‘136
Effect of Disturbance on the Monthly Means,-- nee seaneae ten 137
Annual Variation of Ranges of Monthly Mean I Bimal Vass steteeeee 138
Variations with Reference to the Moon’s Age,------+:++++ssseeeceeteseeseeceeeeee 139
Variations with reference to the Moon’s Deaeabees, weet tee eeee neers eestor ees 140
Remark on the Variations of Ranges of Total Force,...---.-+-++++++sseseeseees 141
Diurnal Variations—
Results from all the Observations, for each Month,---+++++++-++seseeseneeeenene 142
Results from all the Observations, for Groups of Months,--.-..-.+--.+ss+ee+ 143
Results from Undisturbed Observations, for Groups of Months,.---.-....- 144
Effect of Disturbance on the Hourly Means,...-++++++s++-seeesseeeeerenenseeeees 145
Variations with reference to the Moon’s Hour-Angle,------+:.-.++++seeeeesee ees 146
ComsineD Motions or THE Macenetic NEEDLE—
Process of Projection and General Remarks ----+-+--+++++0++2-ssesesseees sen eenene 147
Annual Motions,.-----+-0+++sesceeeee scence cesses ene reercseeceensreteeseeceneeerseconaee 148
Monthly Motions,.-----.-0+s0+:sssesseeeseeecssceeecsecescetacsecenscesereseceesecesenes 150
Similarity of the Motions for the Positions of the Sun and Moon in De.
CLIN ATION» occ cdaewsinacess secistisiaisciauclcingiba's camer cielo se kine\s(rla cieicie s + oie staineiometemeta mente 151
Diurnal Motions, balk aieia/eaie ae Sui eie ele ule vo ulp elpis ace ol ia io leltbelcdete ele elalsle la(einisie.els.c.ei8.oalesje ajae pee Sieetree 153
Foot-note on the Determination of the Epochs of Maximum and Minimum,
Perimeters of the Figures of the Diurnal Motions for each Month,.----..-.-- 156
Perimeters of the Figures for Disturbed and Undisturbed ee 157
Mean Angular Motions from Hour to Hour,-------------- . 158
Diurnal Variation of Velocity of Diurnal Motion ‘and Rela ation to that of
Disturbance, +--+ -seseeeeeeceercssereeeceencc ten snceenrec ere cnetcscceneteaenrcerenes 159
Variations in the Velocity of Motion not related to Variations of Tem-
perature of the Air, Sala ents eitale Ginisteralwretelate Sercinnntalaleicteleitiote(cieie's e's s'siviele-oia eieieieteterate a cerotaneae 161
Relation of Points of Greatest and Least Velocity to the Astronomical
Meridian,------+.ses.0cccereseoecenccnscecssceucessaceanscesecterrecasssarcecncnccerns 162
CONTENTS.
General Form and Turning Points of the Diurnal Motions,.-.+-.-..+++.-..+.
Angular Distances between the Disturbed and Undisturbed Hourly Mean
POSitions, --+-eseeereeecessssee cee e reece tcnteec ent ecetsesseeeseeeeeeecseeteessscnseaes
Motions with reference to the Moon’s Hour-Angle, «-.---+++++++sseeessseeeee
— =e ee homeo eeest-=pegentetls aetnatieas oat =e aaa aS SSS ES SS SS ee ee er
Avrora BorEALIS—
List of Aurore Boreales seen at Makerstoun in the years 1843_9,...........
Additional Notes on Aurora Borealis seen in 1847-9,----+0.+.+essseeeeeeeer ees
Diurnal Variations of Visible Frequency of the Aurora Borealis,.------.--+-
Annual Variation of Frequency of the Aurora Borealis,.-.+.+-++++++.+++-.+0+
Foot-note on Results of Mairan, Kaimtz, and Hansteen,----.-----+0++++0++-++++
Annual Variation from Aurore Observed near Midnight,.-....---+++++...-++-
Variation of Frequency of the Aurora Borealis with the Moon’s Age,.----
Foot-note on the Preferability of Mean Latitudes for the Determination
of the Laws of Frequency of the Aurora Borealis,------+-++++++++sesseeees
Note on the Theory of the Aurora Borealis,-..+---::+sessesesseseeeeseerscsteen ees
MetroroLtocicaL REsuLts—
Temperature of the Awr—
Mean Temperature at Makerstoun, with Probable Error,.-.-----++++++-++++++++
Anntial Variation, +++ +2110: .seeeees cee cee eee ee centre cee cneccncnss tes ceaten sees ener esneene
Probable Error of the Mean Temperature for any Month,.--.-.++-++++++-++-+-
Annual Variation of the Diurnal Range of Temperature, and the Ranges
of the Mean Diurnal Variations,-----+----+----+-seesses scene sees center eeeeeeces
Differences of the Daily Mean Temperature from the Monthly Mean,.....--
Diurnal Variation of Temperature,-.....-..-.+++-- toes Soe OO a ae
Pressure of Aqueous Vapour—
Anntial Variation,.:-+:+++sseseseescee sees eet eneteteeeesecenssasecssecenseeeeneenen ees
Variations with Reference to the Moon’s Age and Declination..-------..-...
Diurnal Variation,..-.-+-..c.esseseee reese sene sees seen ees esensenes cesses carseesenceaens
Relative Humidity—
Annual Variation,-------++++sseeeeeesscsttees ens enceee ene eesecscnescnccacsaseeeseaterens
Variations with Reference to the Moon’s Age and Declination,---.-------.
Diurnal Variation,» -.--:+--+sseessceeeeseeeeeeseee serene nearcsueensseecesseeeenenecseee
Atmospheric Pressure—
Mean Atmospheric Pressure at Makerstoun,---.--+-+--++s+eeeesseeeeeeeeeeeeenes
Annual Variation, and Probable Error for each Month,---+-+-++01+-+s+seeeeeee
Foot-note on the Differences of Mean Pressure at Greenwich and Maker-
Quarters giving greatest Range of Mean Pressure,+-+++--+++-sseseseeeeneereees
Annual Variation of Differences of the Daily Mean from the Monthly
Mean Presgures,::-+--+:2:+-cscscetes ren csccserenseenescngsesssassecsecneressncaeaces
NO.
163
165
167
169
170
171
172
172
173
175
1X.
PAGE
lxxili
lxxili
lxxv
Ixxv
Ixxix
Ixxxi
Ixxxi
Ixxxi
1xxxi
Ixxxii
lxxxii
Lxxxili
lxxxiv
lxxxiv
lxxxv
lxxxv
Ixxxvi
lxxxvi
Ixxxvii
lxxxvii
Ixxxvili
lxxxix
Ixxxix
xe
XC
xcl
XC
xcl
XCli
CONTENTS.
Annual Variation of the Diurnal Range of Atmospheric Pressure,:---++-----
Variation of the Diurnal Range with the Moon’s Age,+----+++++e+++eeseseeeeee
Variation of the Diurnal Range with the Moon’s Declination,.-----.-..+++++.
Diurnal Variation of the Atmospheric Pressure,.-++-+++++++ses+eseeseetceseeees
Amount of Oscillation in the Diurnal Variation, .-------.+.++-.+seseseeeenereeee
Pressure and Direction of the Wind—
Remark on the Observations from which Results are deduced,.-.-+++++++++.--
Annual Variation of the Mean Pressure,.-+++++ss+sceserssesscsncceecenccrevnsseee
Variation of Pressure with the Moon’s Age,--+:-++:+ssecserseeeseres soseeeeeeees
Variation of Pressure with the Moon’s Declination,..-+--+++++++++++eseseeseeees
Diurnal Variation of the Mean Pressure,-----+-0++--2ssseccnsccescsesccceecc caer
Annual Variation of the Number of Hours at which the Wind blew,-------
Annual Variation of the Mean Pressure while blowing,-----+-+++++++++++++0+++
Diurnal Variation of the Number of Hours at which the Wind blew,.-------
Diurnal Variation of the Mean Pressure while blowing,.---++--++++++e+eeeseees
Yearly Mean Value and Direction of the Resultant Wind,.--.--. +--+--..+++-
Annual Variation of the Pressure and Direction of the Resultant Winds,
Annual Variation of the Variability of the Wind,..--------+++++sss++sseceeeeees
Diurnal Variation of the Resultant Mean Pressure of the Wind,.-----.---.--
Diurnal Variation of the Direction of the Resultant Wind,--.-------.---+--+-+
Diurnal Variation of the Variability of the Wind,-------+-..++-seseeessseeeeee
Times which the Wind blew from each Point of the Compass,---+-++++++++++:
Sums of the Pressures for each Point of the Compass,-----+-++++++-+++eserereees
Mean Pressure while blowing for each Point of the Compass,-------++-+++++«:
Motions of different Currents of Air—
Processes adopted in obtaining the Results,.--+-++-+-++sseeeeeeeeeeeeeeeeeeeeeeees
Classification of Clouds and order of Reckoning of Motions,...-..-..--++++++
Explanation of Tabular Results, -.-...--.--n0.cccesseccenss-sxe-seseseneesennsesoued
Combined Results for each Current, <-.:--:s.cesccsncsavaccrnes+s+seececces vavimendite
Resultant Direction of each Current, ----.--seecs.se-seesseneecseccecescrssssenenes
Comparison of Mean Upper Current with the Surface Current, «--...------
Comparison of Mean Highest Current with Surface Current,.--.--.++++++++--
General ConClusions, -:++:.c.00cesssennesnseesssceses--senseaneeensesscsecednerersecns
Extent of Sky Clouwded—
Mean Extent of Sky Clouded, ---..-:---.-seeesercnseeeeescneeeeeeeecereeceneeseenes
AnDUAl VaxriatlOn,-.-2+0+--secceescceescceccererceccscccnsccecenssconsscnscsressescrscse
Variation with the Moon’s Age, «----.s+ssesessecsesencessrseeeenteeneraneeseseenes
Foot-note on Statement by Sir John Herschel,.------ Oe ee eee eeet tence eeeaeeeaes
Variation with the Moon’s Declination, «--+-++-++seesesesseeeeeeeeeeceneeenereees
Diurnal Variation, ---++.--ssecesecssecccnccscenccnceccce resets cnseccssccrcseceuecererens
Ranges of the Diurnal Variation,-++-+..+:++-+:.seseceeeeeeeneeeeeeeerereeerceeeaeees
CONTENTS. XI
NO. PAGE
Quantity of Rain.
Factors for converting Garden-Gauge Results into Observatory-Gauge
Results,.--+:seeeceeseesscrscserccees seccentcececsscenscceresrserensereen castes saeven 931 eViil
*Mean Yearly Amount Of Rain,...+2-:2s:+scesceecessenreeneneceencn cee seecescsseees 932 Cviil
Greatest and Least Monthly Falls, ----....+.000. aie claletera/oraralspoiatete che siotsye(eicieistece{eln sia) 933 evili
SST TEESE Go c00 09 SSUES a I altace ata el ae 934 ise
Amount of Rain with reference to the Moon’s Age,+--++e+essseseeseesseeeeenes 235 cix
DerTatLeD Tastes oF MacneticaL Resutts For 1845 anp 1846—
Magnetic Mechinstronetor UGA) Peeisete recientes veldeerise eens etnies * teslsuicieeaesisiaeacecaaslemeivectluce sts D)
Horizontal Component of Magnetic Force for 1845, ---......:ssseesssecseenceenseneeeenene 11
Vertical Component of Magnetic Force for 1845, .-----+++::seseceeeseseeseeneeeeeeceeer sen ees 18
ierern chica pt term Gdnyesas. sn se) eel *ateserute nese MarunateGep acetic’ stunts! LS a dbib lien: 24
Total Magnetic Force for 1845, ...+-+-+esee-ssseerseceeeeeseeeeeeenseteeassneneeceeneeecsssee ene 96
Daily Ranges Olihewuhnees Elements LOL LGAs cs-ideee ieloieelsacicciesie slates sissies eismoncisasiree 98
Masnetic Dechinagonitor 1846, <..-002---:s.8+-n00: sor asee-enan-deecenareedeeraccessscnovercara- 929
Horizontal Component of Magnetic Donets) Tae ESO) Seb coc tne Aodaonodcinsendoancboneadsonaonsad 32
Vertical Component of Magnetic Force for 1846,.-.---.+--.e:eeseeeee seer ereee rene eeeencreees 35
eicreerietie [ip bommnGAyaatiag@e fecha itae anise Seiwia od gnd'b seas yh cne Send Sombieliswadusdnonineadeclyitrs. 38
Total Magnetic Force for 1846,..-..-.+--++- eet ale eras Ab etre vee Sess ete Nene tsent a Sb, 39
Daily Ranges of the Three Elements for 1846, .---+-....-.seseseceeseneeerereeeneeeeersceesees 04.
DETAILED TABLES oF METEOROLOGICAL REsuLtTs FOR 1845 anv 1846—
- - Dey rab Vhertateete ttl TOLD, ac). t. cease .veonsnnns asivoneicscieduiinsesenaveivassssibatinens sire 42
\ Mectebulb Liermemerer Or LOS. v5.0: Vann c+ co: svaieenn ics sas ceendudear atten sues astteenceeeenee 45
‘ eessure Of AdueansmVanour fOr [G40, 2.4; cacsessqusinc.cgteonsecapaviesteeascugcocuseceess 47
Pred aitt ve: EL UMmtGi aA MOL Os | creccctimok sonics eos ediecie eds aeeiciuscaursldleciiveies atosioesesavcegeevennincs 49
= PMIENOSMMCTIUC/ PECHMMREMOLRULGLOS Vo, 0 cet seecescce vec ces cos ascietaiedasesiencoincisiaia dis cee <eay ees cn ties 51
Pressure and Direction of the Wind for 1845, ...cs.sessssss1ss1sssssssesssscseesesveseeane 5B
| Motions of difterentaourrents of Aan for BAD) Poameasts ceases coesccedsccececsscscssseceseenes 65
Hxtentiof Cloudedmokyator LO40) it Miaiacnuatineie ees sot nea seth atas wsineleaaasiens adsl reds Seeidns 65
| eyrranitihy, OL; NaMeOTamUO 4 Os, Meek ct co tetera chemin ae ace ayemctiaribinn daidle wing awanecast Aaa 67
| Ping bulb: Chermomteremlor (S46. 15 ../...ccaheerden wanes den seo, xtvee/ads aaah atl Su odetc: 68
Niet bulb Lhernrometernor sl G4, Mare. chet st sees ce eri ceets caeees nee ee Ol nce dentine 70
pressure of Agueomsmiapour, for 1846, fi. cai wane inecisnnh ocieite 00 ceniwonpaseweavecansoneien fee Tal
Bvelative: ELUNM Ati ptORMOLO. ere stat cone ene secre et caccecasecs oeerm caeencceeoscsmea oe ennenee 72
PM MOS PNCTIC He TECSMEERLOGMLOLO, eicc cca ncs ssstatedveces seldadutceas wnilacin’ide 0+ a\nnsiseaisitecaccocGrk 74
Pressure and Direction of the Wind for 1846, ....,......ccce.ssscsececeeccsecvccenceccenteces 76
Motions of different Currents of Air for 1846, ..........c0.....ceecceseeecenccsesteceseresares 85
Patent Of Cloudedsskayetary 146, o.0..: tu. cove sewae vee Uersstied suslebaicvaimab hed asue, wleMenetiiics of dak 85
Guantity, of Ramon Moet6—Oy. solace ces stort wcosec esos cathe vars le detedue enn taedees osbasdSc 86
CORRIGENDA IN THIS VOLUME OF GENERAL RESULTS.
Page xvi., Table 6, heading of last column, for mean read year .
— 21, Table xxxviii., column “ March” mean for 22%, for 448°5 read 548°5
— 22, Table xxxix., column “ Winter” mean for 10%, for 0008 read 0036
— 33, Heading of page, for Magnetic Declination read Horizontal Component of Magnetic Force
CORRIGENDA IN THE VOLUME OF OBSERVATIONS FOR 1845 ann 1846.
Page 111, column “ Gott. Mean Time,” for October 14 5% read October 14 17%
— 116, Dec. 34 11» 40™ Declination, for 25° 5751 read 24° 57-51
— 153, Feb. 144 18" wet Thermometer, for 33°3 read 30°3
— 153, Feb. 164 184, wet Thermometer, for 36°°5 read 35°°5
— 166, March 214 9h, Diff., for 1°4 read 2°-4
— 220, Aug. 144 14h, dry Thermometer, for 56°:3 read 50°3
— 245, Oct. 214 13h, Barometer, for 29:045 read 30-045
— $12, 2d division, column “ Gott. Mean Time,” for 24 2 0™ read 54 2h Qm
— $812, column “Gott Mean Time,” for Sept. 14 23 0™ read 14 22% Om
— 340, first column, first line, for Nov. 174 8 read Nov. 174 6
— 342, heading of page, for 1845 read 1846
— 343, last line, for Dec. 84 9% 15™ read Dec. 94 9 15m
— 880, June 12418, Dry Thermometer, for 67°:0 read 57°:0
Note.—All the hourly observations of the bifilar magnetometer, from Dec. 44 34 1845 to the end of
the year 1845, must be increased one scale division, the correction of —1 scale division (see
Introduction, 1845, No. 43) having been accidentally applied twice. All the other Observa-
tions were corrected aright, and daily, monthly, and other mean values, are unaffected by the
error.
CORRIGENDA IN THE VOLUME OF OBSERVATIONS FOR 1844.
Page 342, Table xi., transpose headings “ Summer ” and “ Winter ”
— 352, Table xix., first column opposite January, for 528 read 522
— 404, 3d line from bottom, for 36°63 read 35°°63.
— 424, 2d line after Table xxiii., for Range =6°774 in. read Range =1°774 in.
CORRIGENDA IN THE VOLUME OF OBSERVATIONS FOR 1843.
Page 61, 4th line from bottom, for April 74 145 0™ read April 64 145 Om
— 241, last line, for 0:00003 read 0:000030
— 276, Table xv., mean for Jan. 31, for 28°316 read 29'316
— 276, Table xv., mean for June 3, for 26:189 read 29189
Maxerstoun, May 1850.
GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
1. The detailed results of the Makerstoun Observations for each of the years 1842, 1843, and 1844, have
already been given in the volumes containing the observations for these years ; the detailed Tables of Results
for the years 1845 and 1846 are given in pages 1 to 86 of this volume: general conclusions from the whole
series of observations from 1841 to 1846, together with those from the monthly mean values till the end of
1849, are given in the pages immediately following.
2. In considering the following investigations, it will be of importance to bear in mind the numbers of Ob-
servations made daily, upon which the separate results depend ; these are noted in the following scheme :—
Year. No. of Daily Obs. Intervals and Times of Daily Observations.
1841 and 1842, 4, Three hourly, between 20 and 5", Gottingen Mean Time,
1843, 9,* Mworhourly, between [SP and TO™ 2. i... ..c.sc.se0snenceoe
1844 and 1845, 24, oun lyeee me “hha oa a Pye Senile Wooo, oe A ed
1846, 9,* Twouourly, between lS? and LO? .2..2..0c...cs.bveeceeae
1847, 5, Three hourly, between 20° and OP 22... cs.c0.s.vteeeeaeas
1848 and 1849, 2: JSNOGIE PTGS UL lll NE ine dill semhinieet ine tenia aOR Wa Ee oi ee
3. All the monthly means from incomplete diurnal series have been reduced to means from hourly obser-
vations ; the corrections having been deduced from the means for the corresponding hours in 1844 and 1845.
MAGNETIC DECLINATION.
TABLE 1.—Monthly Means of Magnetic Declination at Makerstoun.
1844. 1845. 1848. 1849.
January 25 27-50 /25 25-50|25 20-60 |25 14-09 24 55-73 |24 47-90
February teense . 18-93 13-88 . 54-47
March . 17-84 13-14 : 54-66
April : . 18-28 11-34 : 53-67
=o ’ ° ,
May : . 17-30 11-35 : 53:16
June . . 16-58 11-22 . : 51-43
July : . 16-51 11-10 : 51-59
August . . 17-36 10-65 . 50-56
September . . 17-10 10-37 . 49-11
October : : 15.49 10-76 . 49-26
November . . . 14-47 09-57 . . 48-83
December . 14-21 08-34 : 49-24
* In the months of November and December 1843, an observation was made at 234 Gottingen Mean Time. In 1846, 12 Obser-
vations were made daily ; the intermediate observations (at 234, 14, and 74, Gottingen Mean Time) are employed for the diurnal
period and ranges only.
ae
MAG. AND MET. OBS. 1845 anv 1846. c
xu GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
Mean Westerly Declination and its secular change.—The mean declination for each month in each year,
from August 1841 till November 1849, is given in Table I. ; it diminishes generally from month to month ;
in the mid-summer months, however, it frequently increases.
4. The mean declination for each year, with the yearly value of secular change and its mean value for each
four years are given in Table 2: the mean for 1841 has been deduced in assuming the change from 1841 to
1842 the same as that obtained from a comparison of the observations for four months of 1841 with the
observations for the corresponding months of 1842; and the mean for 1849 has been found similarly from
the comparison of the observations in the first eleven months of the years 1848 and 1849.
5. The mean yearly value of the secular change from the last column of Table 2 = 5°92. Some irregularity
appears in the values of the secular change from year to year, especially in those for the years 1846-1849, com-
pared with the values for the preceding years ; this marked difference, it is conceived, is not due to instrumental
error, because no such amount of torsion in the suspension thread of the declination magnet has existed to pro-
duce it ; and the observations of the bifilar and balance magnetometers indicate a similar variation in the
value of the secular change for the year 1847-8. In that year, great magnetic convulsions occurred, the effects
of which seem to have extended into the years 1848-9.
6. The last column of Table 2 appears to exhibit the variation of the yearly value of secular change ; its in-
crease as the needle moves farther from its greatest westerly position. Between 1842 and 1847 the secular motion
from year to year is moderately equable. This is not the case with the motion from month to month, which is
occasionally retrograde. We are induced to conclude, therefore, either that the secular motion varies from
month to month, while nearly constant from year to year; or that the secular motion being uniform from
month to month other motions are superposed: in either case, by reducing the mean positions for the several
months to one epoch, the residual variations will be more clearly exposed, and it may be determined whether
they obey any law related to season. Since we are aware that the secular motion for the same place is sometimes
eastwards and sometimes westwards, it does not appear necessary to form any other hypothesis than that the
secular change is the excess of the motions in one direction over those in the other, and to determine whether
the amounts and directions of motion have any relation to season.
TABLE 2,—Yearly Means of Magnetic Declination and the Secular Change.
Secular Change.
Mean ;
W. Declination. Mean of
4 Years.
7. Annual Period of Magnetic Declination —In the discussions for 1844 the apparent law of annual varia-
tion has been offered with some confidence, and that chiefly because of the considerable agreement of four years’
observations where the variations were of the smallest order. In the means for 1843-6, the proportional parts |
of the yearly secular change being eliminated, the variation of the monthly means is under one minute; since |
the variations from month to month are so small, it is evident that, in order to detect any relation to season,
the greatest care must be taken to avoid all instrumental errors ; for this reason it appears proper to consider
at first the results from those years only (1843-6), during which a sufficient number of daily observations were
made to give the monthly means without any considerable error. The means for the first of these years (1843) |
are affected to some extent with torsion of the suspension thread, which broke gradually in June; on which
account the mean of May and July has been substituted for June in Table 3.
«
ANNUAL VARIATIONS FOR THE MAGNETIC DECLINATION. xii
1847,
ee Corrected by M nee
a é 1848. | 1849. ||, van
Maker- Green- 1847-9
stoun. | wich.
January : c . —0-38 |— 0-44 |+ 0-51) —0-34 | —0-08
February . : . : . + 0-05 |+0-33 |—0-13| +0-06 | + 0-04
March . : : . p : +0-74|)+ 0-75 |+0-68| +0-24 ||+0-55
April : . : : : +1-24/+1-17/+0-31 |) —0-25 ||4+0-42
May . . . : : 0-00 |+ 0-18 }+0-42| +0-21 ||+0-24
June : . . . : : — 0-28 |— 0-20 | —0-69 | 40-41 | —0-17
July “ : : . +0-18 |}+0-10|+0-09 | —0-74 ||—0-17
August : : “Of : . + 0-40 |+ 0-27 | —0-32| —0-60 || — 0-20
September : e : : —0-88 |—1-03 |—1-15) —1-01 ||—1-04
October . . . : — 0-83 |—0-25 |—0-38| +0-10 || —0-27
November ‘4: . Ee . . — 0-01 |—0-48 |—0-19| +0.92 | +0-16
December . . . — 0-28 |— 0-36 | +0-84 [+ 1-06]] + 0-53
8. Table 3 has been formed from Table 1 in the following manner ; the monthly means for 1843, 4, 5, and 6
were reduced for mean secular change to January of their respective years by the correction
M, + 0°48 x nv
where M,, is the mean for the xt" month after January, and 0':48 is the approximate mean value of secular
change for one month. If m be the mean of the twelve resulting quantities for any year, the numbers w in
Table 3 are obtained by the formula
Ln = M, + 0°48 x n—m
The numbers for 1847, 8, and 9, were obtained in a similar manner ; 0:63 being used instead of 0'-48
for 1847, 0-62 for 1848, and 0-56 for 1849 ; the value of the secular change for 1847 has been obtained by
comparing the last six months of 1846 with the corresponding months of 1847, and the first six of 1847 with
the corresponding months of 1848 ; that for 1848 was obtained similarly. The means for 1841-2 are not in-
serted, as they were too much affected by torsion and broken suspension-threads to be of use in this investigation.
9. The interpolated epochs of maximum and minimum, from the mean of 4 years in column 8 of Table 3,
are,—
A minimum of westerly declination in the end of April ;
JA. Da ax im UME clesesee otlet es in September ;
AL MUTE easier s)s aise + «cuicis'e ss in the beginning of December ;
ZX WOAXAUION Cee ee cle stein e onslce'e © in the end of January.
This result is shewn with considerable fidelity im each of the four years; the greatest variations from it
can be traced to torsion of the suspension thread removed at the particular epochs: the means for 1846 give
accurately the result of the means for the other three years.
10. The year 1847 was one of great magnetic disturbance, and as only 5 observations were made daily, the
effect of the disturbed observations on the monthly means is the more considerable. Thinking it possible that
corrections for the 5 observations might be obtained with greater accuracy from complete series made elsewhere
during the same year, I applied to Mr Arry, the Astronomer-Royal, for this end. I have to thank him for fur-
nishing me with corrections obtained from the Greenwich Observations for that year. These corrections having
been applied, the resulting variations, obtained as previously indicated, will be found column 10 of Table 3 ;
they give almost exactly the same result as the quantities corrected by the Makerstoun Observations for 1844
and 1845: according to both, there is a slight maximum exhibited in August, but otherwise the result
differs considerably from that given by the preceding years. The observations for 1848 and 1849 on the
whole indicate a result not differmg greatly from that for 1847; and when we examine the mean for the
3 years 1847-9, as in the last column of Table 3 (where the mean of columns 9 and 10 has been taken for 1847),
we find a similar but more regular result. The value of the conclusions from the observations for 1843-6
_ depends upon the consistency of the partial results and the regularity of the secular motion from year to year :
when it is pointed out that the means for 1847, 8, and 9, are deduced from but few daily observations, it should
‘
XIV GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
also be stated as very probable, that the errors in the corrections employed (to reduce the means obtained to
those derivable from complete series) are insufficient to account for the differences of these variations from those
for the preceding years ; as is evident for the year 1847, corrected by two very different methods. The only
evident explanation remaining is to be found in the varying secular change for these years; and it does not
appear at all improbable that the difference is connected with this variation. It has been shewn that the annual
period has appeared inverted when the sign of the secular motion was opposite ; it is the most remarkable fact —
in connection with the differences of the results for the two periods 1843-6 and 1847-9 that they are exactly
the inverse of each other (see columns 8 and 13 of Table 3): the completeness of the opposition in the double
maxima and minima appears too curious to be accidental. If the latter result be a true exposition of the annual
law for these 3 years, it will follow that the inversal of the law observed at the same time with an opposite
secular motion is not necessarily a consequence of that opposition.* &
Differences of the Daily Means of Declination from the Means for the corresponding Months.—The diseus- —
sion for 1844 will be found in the volume for that year, page 332, the results for 1845 and 1846 are obtained
from Tables I. and LI. of this volume.
TABLE 4.—Means of the Westerly and Easterly Departures of the Daily Mean Magnetic Declination
from the Monthly Means, with their Differences.
Mean Departures, without reference to
Direction.
Mean Westerly Departures. Mean Easterly Departures.
Month.
Means of each |
Month. |3 Months,
1844. | 1845. | 1846. | Mean. 1844. | 1845, | 1846.
1844. | 1845. | 1846. | Mean.
0.72
Jan. 0-48 | 0-59 | 0-51 | 0-53 .
0-75 | 0-54 | 0-92 | 0-74 ||+0-01 || 0-72 | 0-59
Feb. || 0-70 | 0-64 | 0-92 | 0-75
Mar. || 0-35 | 0-43 | 0-80 | 0-53
April | 0-77 | 0-53 | 0-80 | 0-70
May | 0-44 | 0-58 | 0-83 | 0-62
June || 0-40 | 0-34 | 0-88 | 0-54
July || 0-61 | 0-45 | 0.94 | 0-67
Aug. || 0-70 | 0-76 | 1-34 | 0-93
Sept. || 0-87 | 0-56 | 1-35 | 0-93
Oct. |) 1-31 | 0-55 | 1-19 | 1-02
0-40
11. The conclusions from this Table are :—
lst, The daily mean declination departs farthest to the west of the monthly mean in August, September,
and October, on the average about 096: the average departure for each three of the remaining nine months
is nearly constant ; about 0”60.
* [ have pointed out in a paper on the magnetic declination read before the Royal Society of Edinburgh, May 3, 1847, that the
annual variation is inverted when the secular motion has an opposite sign. M. ARaGo made an indistinct approximation to this fact
in comparing the observations of CASSINI with those of BowDiTcH (1810), Annales de Chimie, xvi., p. 66. M. Karmrz also alludes
to the fact in comparing CassINni’s observations with observations by M. KUPFFER and M. Gauss (Kémtz Lehrbuch, iii., 426). In
both cases the fewness of the latest observations are considered to render the conclusion doubtful. Dr Luoyp has recently distinctly
stated the fact from the comparison of CASSINI’S observations with his own (Trans. Roy. Ir. Ac. xxii., May 1846). The following is
from the abstract of my paper :—“ The annual period of magnetic declination consists of a double oscillation, having nearly the fol-
“ lowing epochs of maxima and minima :—
“ A max. Jan. 30. The min. April 30. The max. Sept. 10. A min. Dec. 10.
“ The author examines CAssINI’s observations (1783-7). Although they confirm this law to some extent, it is not conceived that
“‘ they can be trusted for such a determination. The author also verifies his result by grouping a large mass of modern observations.
« The observations at Washington [1840-42], and Toronto [1841-42], [discussed in the paper] with other facts, prove that the oscilla-
“ tion is inverted, when the secular motion of the needle has an opposite sign ; and Colonel BEAUFOY’s observations [1817-20] seem to
“ prove, that when the secular motion is zero, the annual period is a combination of the oscillations for a positive and negative secular
“motion.” (Proceedings Roy. Soc. Edin. May 1847.) ‘
ANNUAL VARIATIONS FOR THE MAGNETIC DECLINATION. XV
2d, The daily mean declination departs farthest to the east of the monthly mean in the months from
August to February ; the means for 1844 and 1845 (which are most to be depended on for this investigation)
indicate November, December, and January, as the three months with the greatest average departure to the
Bact, about 080: the least mean departures to the east occur in June and July; the average being 0:55,
or, by the means for 1844 and 1845, 0:38.
+ 3d, The mean westerly departures are most in excess of the mean easterly departures in August, Sep-
; Bomber, ’and October, and the latter are most in excess of the former in December and January.
3 4th, The mean departures, without reference to direction, are greatest in August, September, and October ;
_ the average being 0’-80: they are least in April, May, and June; the average is 0’-60 nearly, the means of
each three months in the last column of Table 4 being under consideration. This result was generalized in
_ the volume for 1844, p. 332, as follows: “The average difference of the daily means from the monthly means
in 1844, was a minimum when the mean westerly declination was least, and a maximum when it was
greatest.
‘5th, The mean departure of daily mean declination from the monthly means for 1844 = 0/56
acc cw os ois ea ous cin es cisslain ¥in'e a 6 UE'o.0 sic\c ania ala.nina wh walg'e Caieldiiae 0/6 ue ois 1845 = 0'-62
noc oo cto SH HOOBGR SBOE Sud c 20d GcnndeseRasabonNeT HapEbagaL pou pseHpbedasapadccaee wav iain Oto = Oroe
ie ca ae se ene ars a se chk ea Selaciele(s olvvedssinieye me clyjdintse-siees's aioe bie + v= cteseas B Yeats: == 0°07
‘ The mean for 1846 is probably too high, owing to the incompleteness of the diurnal series of observa-
_ tions.
ah
Annual Variation of the Diurnal Ranges of Magnetic Declination.—The diurnal range of motion of the
declination magnet varies from month to month: the following Table contains the mean of all the diurnal
‘ranges for each month, as deduced from the usual daily observations: the means for 1844 and 1845 only are
_ comparable with each other.
__ _TasuE 5.—Mean Diurnal Range of Magnetic Declination, as deduced from the Ordinary Daily
ip Observations.
March.
, . : 10-12
j 9- : 16-21
14-20
13-70
4 : .65| 11-91
15-20
13-55
1@ 12. From the means for 1844 and 1845 in Table 5 we find, that the mean diurnal range of the hourly obser-
| Yations is greatest in the months of March and April (= 15’-70), and in the months of August and September
| (= 15°68); that it is least in the months of December and January ( = 11’27), and in the months of June
‘and July (= 12” 90). This result may be stated generally thus :—The angle, including the diurnal oscilla-
| it is least at the winter and at the summer solstices. The means from the incomplete diurnal series of 1843
_ and 1846 indicate the same law. The quantities given in Table 5 are obtained from the ordinary daily obser-
| vYations, and while they are sufficiently comparative to indicate the variation of range with season, the daily
|} observations are in no year sufficiently numerous to give the absolute diurnal ranges: in 1844 so careful a
| watch was kept over the smallest variations, and so many additional observations were made, as to render it
: t probable, that Table LX. for 1844, p. 400, contains very nearly the absolute ranges for all the three magneto-
| meters: a similar remark will apply to Table L., p. 28 of this volume, for 1845, although not to the same
MAG. AND MET. oBS. 1845 anp 1846. d
Xvi GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
extent; the smaller disturbances not having been observed with the same completeness in that year. The
mean diurnal ranges for each month from these two Tables are as follow :—
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. | Dec, Year.
1844, 1163 13°63 19°36 1910 14°83 12°60 13°36 16°58 17°74 19°26 19%66 12”95 | 15-89%
1845, 17°81 15°31 16-52 17°01 14-67 13°82 13°72 17°79 18°20 14"48 12°64 15°01 | 15°58
Mean, 14°72 14°47 17°94 18705 14°75 13°21 13°54 17°18 17-97 16-87 16°15 19'-98 | 15-74)
These means give the same law of variation as that already found from Table 5, but the values are con-
siderably higher. From the means for both years we may conclude, that the mean angle, including the diurnal
oscillations in years of moderate disturbance at Makerstoun, is about 18’ at the equinoxes, about 14’ at the
solstices, and about 16’ for the whole year.
Annual Variation of the Ranges of the Monthly Mean Diurnal Variation.—We have considered above
the annual variation of the mean ranges for each day, we now give in Table 6 the ranges of the mean diurnal —
variation for each month. The first four lines contain the diurnal ranges of the means of all the regular daily
observations made in each month; and, as in Table 5, only 1844 and 1845 are comparable with each other:
the last line contains the range of the hourly means for each month, as deduced from the observations for the
4 years given in Table 12.
* 183. From the last line of Table 6 it appears that when a sufficient number of observations is employed, the
range of the mean diurnal variation is nearly constant for the six months, April to September, being on the
whole rather larger for the first three than for the last three of that half-year: the mean range for the whole
six months is about 11-0. The range is nearly of equal value for pairs of the remaining six months, namely,
for March and October (=9’2) ; for February and November (=7’3) ; and for January and December (=5'-9).
TABLE 6.—Ranges of the Mean Diurnal Variation of Magnetic Declination.
Year. Jan. Feb. | March.} April. | May.
1843 4-92 | 8-35 | 7-93 |10-52 | 9-93
1844 || 5-26 | 6-36 | 9-94 | 10-20 | 8-96
1845 || 6-95 | 7-31 | 9-92 | 13-08 | 12-42
1846 || 6-54 | 6-05 | 10-56 | 12-58 | 12-79
Mean
of all {)
5.85 | 7-11 | 9-28 |11-29 | 11-02
14. When we examine the range for each month of the mean diurnal variation as deduced from any single
year’s observations, we observe a similar result to that obtained from the means of the diurnal ranges (Table 5) ;
namely, that the range is, on the whole, greater for the months near the equinoxes than for those near the
summer solstice ; but as we combine a larger number of observations the difference gradually disappears, till
(as we see in the mean of four years’ observations, Table 6) the only difference appears in the slightly greater
range for the months immediately before the summer solstice than for those immediately after it. The differ-
ence betwixt the two results is, therefore, in all probability, due to irregular causes, which shift the epochs of
the extreme positions of the magnet. That this is the case will be rendered nearly evident by the ranges of the
diurnal variation as deduced from the 17 days’ observations with least irregular disturbance (see 1844,
p. 339, and p. 5 of this volume); they are as follow,
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
3°43 454 (28 Ao 9°66) De She er -to 964 ier 5°31 4" 11
These, with the exception of the range for May, indicate generally the constancy of the regular diurnal
range in the months from April till August. The exception of May is easily explained by the fewness of the
observations, and the method by which the observations were selected (see volume for 1844, p. 339).
15. Since, then, the means of the diurnal ranges differ from the diurnal ranges of the means, chiefly because of
irregular disturbing causes which shift the epochs of the extremes, the differences of the results will give some
measure of these disturbances. Taking the differences betwixt the last line of Table 5, and the last of Table 6,
we have,
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dee.
3/58 3°53 4'27 3°87 2/29 1:36 2°91 350 494 3°66 3°21 3°46
ANNUAL VARIATIONS FOR THE MAGNETIC DECLINATION. XVII
The difference is prcatey for March and September than for the winter months, and it is least for June.
From this then we conclude (as in the volume for 1844, p. 334) that those irregular disturbances which render
the mean diurnal range greater than the range of the mean diurnal variation, ieee their maximum effect about
the equinoxes, and their minimum at the summer solstice. We are still ignorant of the law of disturbances as
flecting the position of the declination magnet at all portions of its diurnal motion ; to determine this, we may
Drnsider the differences of the positions of the magnet at each hour, from its mean position at the same hour
for each month.
Annual Variation of the Mean Difference of a Single Observation of Magnetic Declination from the Monthly
Mean at the corresponding Hour.—These differences have been obtained for the years 1844 and 1845 only, and
he means for each month (from Table XIV., 1844, p. 346 ; and Table XIII., p. 8 of this volume) are as
follow :—
TABLE 7—Mean Difference of a Single Observation of Magnetic Declination from (1) the Hourly
Means of all the Observations, and from (2) the Hourly Means of Observations on Days selected
free from disturbance.
ies.| Year. Jan. Feb. | March.| April. | May. | June. | July. | Aug. | Sept. | Oct. Nov. Dec. Mean.
1844 1-34 | 1-40 | 2-22 1-87 1-60 | 1-12 | 1-43,| 1-71 | 1-93 |] 2-26 | 2-30 | 1-40 | 1-71
1845 2:02 | 1-82 | 1-76 | 1-63 | 1-46 | 1-20) 1-41 | 1-86 | 2-06) 1-66 1-75 | 1-63 1-69
Mean | 1-68 | 1-61 | 1-99 | 1-75 | 1-53 | 1-16 | 1-42 1-78 | 1-99] 1:96 | 2.02 | 1-51 1-70
1844 1-31 1-427 2 toe 907-63 re ol 77 | 88" |) 2915) 2-15") 1-34 1-70
1845 || 2-00 | 1-72 | 1-87 | 1-56 | 1:52 | 1-18 | 1-40 | 1-88} 2-11 1:58 | 1:78 | 1-55 1-68
Mean || 1-65 | 1-57} 2-01 | 1-73 | 1-57 | 1-18 | 1-45 | 1-82 1-69
1-99 | 1-86 | 1-96 | 1-44
16. The mean differences from both series give nearly the same result, which is, on the whole, similar to that
deduced from the diurnal ranges ; ; it may be cated thus ;—the mean departure ae the declination magnet from
normal position for any hour is greatest near the equinoxes, and least at the summer solstice. When we
mine the means for the separate years, we find that those for 1844 give the result with considerable dis-
tinctness, the chief difference consisting in the occurrence of the autumnal maximum in October and November ;
in 1846, on the contrary, the spring maximum is ill defined at best (asi in the 2d series,) while January is a
month of considerable disturbance. It appears evident that two years’ observations are too few to exhibit a
of this character free from all irregularity. The year 1844 appears to have been remarkably adapted for
ibiting all the usual laws of magnetic and meteorological variation ; it is on this account, that it will be
nd generally in these discussions, that the combination of another year’s observations, does not serve to make
the results already obtained in the volume for 1844 more regular.
Annual Variation of the Number of Observations of the Magnetic Declination which were Positive (West)
the Monthly Means for the Corresponding Hours.—The following Table contains the numbers for each month
1844 and 1845, with reference (1) to the hourly means of all the observations, and (2) to the hourly means
of days selected free from irregular disturbance.
BLE 8.—Number of Observations of Magnetic Declination in 100 to the West of their Hourly Means
as obtained (1) from all the Hourly Observations, and (2) from those for Selected Days.
|
ies.| Year. Jan. Feb. | March.| April. | May. | June. | July. | Aug. | Sept. | Oct. Noy. Dee. Mean.
|
1844 | 52-7 | 51-8 | 51-4 | 48-4 | 49-7 | 52-8 | 50-0 | 49-9 | 53-0 | 46:0 | 48-9 | 55-3 || 50-8
1845 | 54-5 | 53:0 | 54-6 | 546] 53-2 | 47-8 | 49-2 | 51-9 | 52-1 | 47-8 | 48-0 | 51-2 || 51-5
Mean | 53:6 | 52-4 | 53-0 | 51-5 | 51-4 | 50-3 | 49-6 | 50-9 | 52-5 | 46-9 | 48.4 | 53-3] 51.2
1844 |} 51-5 | 55-3 | 59-8 | 49-5 | 51-1 | 52-2 | 45-5 | 50-8 | 54-7 | 47-2 | 58-0 | 60-4 || 53-0
| 1845 || 62-2 | 55-4 | 58-8 | 61-2 | 45-7 | 46-7 | 48-0 | 46-8 | 48-2 | 53-9 | 50-0 | 50-3 || 52-3
Mean ||) 56-8 | 55-4 | 59-3 | 55:3 | 48-4 | 49-4 | 46-8 |} 48-8 | 51-4] 50-6] 54-0 | 55-4 || 52-6
xvii GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
17. From the first series, the number of observations to the west of the monthly means for the correspond.
ing hours was greatest in the 4 months December to March, there being on an average 6 more to the west than —
to the east in 100: the number was least in the months of October and November, there being on an average
7 less to the west than to the east in 100. July is the only other month, in the mean of the two years, for
which the number of observations to the west of the mean was greater, than the number to the east. The num-
ber for each of the months from April till September varies little.
18. From the second series, for which the mean hourly position is deduced from days selected as nearly free
from disturbance, the number of observations to the west of the hourly means was greatest in the 6 months
from November to April, there being an average of 12 observations in 100 more to the west than to the east ;
in the remaining 6 months, May to October, there is an average of about 2 less to the west than to the east.
The number of observations to the west of the hourly means (whether these are obtained from all the ob-
servations, or from the undisturbed observations only) is greatest about the months December to March.
19. By both series, each year shews more observations to the west than to the east of the hourly mean posi-
tions, however obtained ; so that the greatest departures from the mean position are to the east, the direction
of the secular motion: the 2d series shews this fact most distinctly, as might be expected, since the mean posi-
tions are nearly unaffected by disturbance. :
20. Annual Variation of the Probable Error of an Observation of Magnetic Declination from the Monthly
Mean for the corresponding Hour.—lIt has been already shewn in the volume for 1844, p. 351, that the probable
error cannot be deduced on the assumption that the differences from the mean position are analogous to the
errors in the observation of a constant quantity, since that assumption is inaccurate; the differences do not
occur equally to the east and west of the mean, as is shewn in the following discussion ; nor is the number
occurring within certain limits satisfied by the usual function of the errors obtained from the calculus of proba-
bilities, as will be found from Table XIX., p. 352, 1844, and Table XVI., p. 10 of this volume. In conse-
quence, a graphic interpolation has been employed to determine the probable error, that is to say, the depart-
ure from the hourly mean position, for which there were as many observations with a greater, as there were with
a less departure; these, deduced from the two tables last referred to, for each month are :—
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Noy. Dec. Mean.
1844, 0°93 0°94 1°85 1°20 1-16. 0°78. 1-04. .1'-20,..1':36. 1-58: .1°51, 0-90) Sie
18455), 1°38. 1-25 1-24 108. 1:08 09 deel 05j) 1:35), 1-564 1oi4e 1-2 eee
Mean, 1:15. - 109° 129 1°14 1°12 9 0°84 1-04 17-27 1°:46. 1°36 1-3950-99s ieee
These numbers on the whole follow the same law as the mean difference: The probable error of an obser-
vation of magnetic declination from the monthly mean of the corresponding hour (without reference to which
hour) is least in June (=0'84) and in December (=099), and it is greatest in September (=1’-46) of the
autumn months, and in March (=1':24) of the spring months. The remarks already made in the case of the
annual variation of the mean disturbance apply equally here, see No. 16.
MONTHLY VARIATIONS FOR THE MAGNETIC DECLINATION.
TABLE 9.—Mean Variations of Westerly Declination free from Regular Secular Change, with
reference to the Moon’s Age and Declination.
After
Moon’s Moon
Age. 1843. 1844. 1845. 1846. Mean. parthent 1843. 1844. 1845. 1846. Mean.
North.
d. da. ’ , , d. d. Z ; < f %
14—16 | +0-24 | —0-04 | +0-06 | +0-32 || +0-15 | 27— 1 || +0-25 | +0-19 | +0-07 | +0-35 || +0-22
17— 20 || +.0-42 | +0.24 | —0-08 | +0-09 || +0-17 9— 5 || +0-15 | —0-05 | —0-12 | —0-04 || —0-01 |
21—24 | —0-34 | +0-15 | —0-12 | +0-03 || —0-07 6— 8 | +0-03 | —0-18 | —0-14 | +0-11 |} —0-04
25—28 || —0-14 | +0-01 | —0-08 | +0-04 || —0-04 9—12 || +0-08 | —0-24 | +0-01 | +0-01 — 0-03
29— 1 || —0-33 0-00 | +0-04 | +0-22 || —0-01 | 13—15 || +0-20 | +0-02 | +0-06 | —0-35 || —0-05 ,
2— 5 || —0-08 | +0-03 | +0-09 | —0-36 || —0-07 | 16—19 || —0-15 | +0-13 | +0-02 | —0-19 || —0-05 |
6— 9 | +0-01 | —0-16 | +0-08 | —0-05 || —0-02 | 20—22 || —0-60 | +0-01 | +0-01 | +0-01 —0-14 |
10—13 || +0-21 | —0-23 | +0-01 | —0-32 || —0-08 | 23—26 || +0-06 +0-12 | +0-18 | +0-07 +0-11 be
hd
H
a
MoNnTHLY VARIATIONS FOR THE MAGNETIC DECLINATION. xix
21. Variations of Daily Mean Westerly Declination with reference to the Moon’s Age and Declination.—
Table 9 has been formed from the Tables given in the former volumes of observations, and in this volume,
pages 2 and 29; the means of groups of 3 or 4 days are given positive when west, and negative when east of
phe mean.
From Table 9 it appears,—
1st, That the westerly declination is greatest about two days after full moon.
2d, That it is greatest when the moon is farthest north.
In both cases, the epoch of maximum only is well marked; in the 3 or 4 days before it and after it, the
- declination is most westerly; in all the rest of the periods the variations are inconsiderable. When the small-
“ness of the variations and the large effect of considerable disturbances are considered, the results of the separate
years are sufficiently consistent, to give a considerable probability to the truth of the conclusions: in each
| year, the declination was more westerly about the time of the moon’s greatest north declination, than for any
other time.
TABLE 10.—Diurnal Range of Magnetic Declination with reference to the Moon’s Age and Declination.
After
Moon’s Moon
Age. 1843. 1844. 1845. 1846. Mean. farthest 1843. 1844. 1845. 1846. Mean.
North.
, ; s Q ; Oro de ; , gy , d
9-73 | 16-22 14:80 13-41 13-54 | 27— 1 || 10-84 | 11-22 | 13-99 | 11-56 11-90
9-73 | 15-90 | 16-20 | 15-12 14-24 2— 5
9:25 | 11:59 | 13-64 | 12-94 11-85 6— 8 9-21 | 14:11 | 14-69 | 13-42 12-86
25—28 || 11-20 | 10-13 | 12-44 | 11-20 | 11-24 9—12 9-36 | 12-39 | 13-47 | 15-10 12-58
ee Il 9-68 | 11-53 | 13-15 | 12-56 11-73 { 13—15 || 10-19 | 12-05 | 12-16 | 14-01 || 12-10
2— 5 || 10-07 | 11-13 | 13-68 | 13-88 12:19 | 16—19 8-91 | 12:53 | 14:70 | 11-70 | 11-96
6— 9 | 11-92 | 14-08 | 13-89 | 12-96 13-21 | 20—22 9-75 | 13-16 | 12-10 | 13-82
13-17 | 23—26 |
_
bo
—
22. Variation of the Diurnal Range of Magnetic Declination with reference to the Moon’s Age and Declina-
tion.—The means for groups of days given in Table 10 have been deduced from the tables in the present and
| former volumes. It results from Table 10,—
1st, That the diurnal range is greatest (from the mean of 1844 and 1845,=16’-05) about 2 or 3 days
| after the sun and moon are in opposition: that it is least about 3 days before they are in conjunction; the
| mean of 1844 and 1845 giving for that epoch 11’-28. .
_ «2d, That the diurnal range is greatest about 4 days after the moon is farthest north ; the mean at that
| epoch for 1844 and 1845 being 16-15: that it is least when the moon is farthest north, and about three days
| after it is farthest south ; the value from the means of 1844 and 1845 in both cases being about 1230: that
‘a secondary maximum of diurnal range occurs about 3 days before the moon is farthest north ; the mean from
1844 and 1845 being 14’-04.
: The value of the means of ranges is in all cases taken from the observations for 1844 and 1845, as the
value for 1843 and 1846 is imperfect.
23. The means for 1843 and 1846 give the same results as the means for 1844 and 1845 for both arguments.
The observations for 1844 exhibited these laws (see No. 16.) with remarkable distinctness: several single
| lunations shewed the law with reference to the moon’s age very clearly; from these it appeared, that the varia-
tion of the diurnal range was greatest for the lunations about the equinoxes and, in connection with the first of
the conclusions above, when the sun and moon were in opposition near the equator. (See volume for 1844
p. 336.) The conclusions from the 2d part of Table 10 are analogous to those already found, No. 12. for the
Sun’s declination, and the results for both bodies may be stated thus :—The diurnal range of magnetic declina-
on is less when the body (sun or moon) has its greatest northerly and southerly declination than at the
rmediate periods; being greatest at the two epochs when the body is rather north of the equator. The
Variation of diurnal range in the lunar periods is as great as, or greater than, for the year, the means of 12 parts
# the period in the former being compared with those for the 12 months of the latter.
’ 4 24. Variation of the Mean Difference of a Single Observation from the Monthly Mean for the corresponding
| Hours, with reference to the Moon’s Age and Declination—tThe results for the two years 1844 and 1845 from
Table XV., 1844, p. 347, and Table XII., p. 7 of this volume, are given in Table 11.
The conclusions from Table 11 are almost identical with those from Table 10.
|
MAG. AND MET. obs. 1845 anv 1846. e
Xx GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
1st, The departure of the declination magnet, at any hour, from the monthly mean position, for the same
hour, is greatest two or three days after opposition, and it is least about the time of conjunction.
2d, The departure of the declination magnet, at any hour, from its monthly mean position, for the same
hour, is least when the moon is farthest north, a minimum also occurring after the greatest southerly declina-
tion ; it is greatest about 4 days after the moon is farthest north, a maximum also occurring about 4 days before
that epoch.
25. There are slight irregularities in the resulting means of Table 11, which are to be expected where only two
years’ observations are considered. The variations of these differences are rather less for the period compre-
hending the moon’s changes of declination, than for that comprehending the sun’s ; the means for 2 or 3 days —
of the former being compared with those for the 12 months in the latter; if the mean difference for June,
however, be neglected, the variations for the lunar period are quite as great as those for the solar period.
TABLE 11.—Mean Difference of a Single Observation of Magnetic Declination from the Monthly Mean
for the corresponding hour, with reference to the Moon’s Age and Declination.
?
After
Moon
farthest
North.
d. d.
ae
ee
6— 8
9—12
132215
16—19
20—22 |
23—26 |
DIURNAL VARIATIONS FOR THE MAGNETIC DECLINATION.
26. Diurnal Variation of Westerly Declination,—The discussions for 1843 and 1844 will be found in the —
volumes for these years; the tables for 1845 and 1846 are contained in this volume, pages 4 and 31. Table
12 is formed from a combination of all the ordinary daily observations made in these years in the following
manner. Let A and C be the means from the 4 years’ observations for two hours at 7 hours interval, the in-
termediate hours having less than 4 years’ observations, a and ¢ the means from the observations for 1844 and
1845 at the corresponding hours ; b,, the mean for the nt hour after a, for which there are less than 4 years’
observations ; then B,,the mean for the same hour referred to the means A and C has been obtained by the
formula
where 0’, = b, —a — A.
27. Between 175 10™ and 95 10™, Makerstoun mean time, only the even hours have not had observations
for 4 years; for these even hours, therefore, 1 = 2, n = 1, and the formula is reduced to
IN Se CPE Se
5 :
B-—b=
For 22" 10™, 02 10™, and 6h 10™, b depends on 8 years’ observations, 1844, 1845, and 1846, and so thea
fore do a bad ein the formula for these hours ; and in November and Decanher the mean fart 22h 10™ is d 4
duced from 4 years’ observations (see foot-note, p. xi.) This reduction is evidently the simplest and least exact-
ing that could be made.
DIURNAL VARIATIONS FOR THE MAGNETIC DECLINATION. XX1
TABLE 12.—Diurnal Variations of Westerly Declination for each Month, as deduced from the Regular
. Daily Observations made during the Four Years 1843 to 1846.
KOOMNIMR SY PwWWe
—
28. From Table 12 we find that the north end of the declination magnet is most westerly throughout the year
ween Oh 20™ p.w., and 1" 25™ p.m., the epochs in apparent time for each month being as follow :—
° Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
0h 50m 0250" Oh55m JhJOm Jhj5m JhQ5m jJhOm OhH5Om™ Oh Om Oh 45m Oh 35m Oh 50m
Tt appears, therefore, that the maximum westerly declination occurs farthest after apparent noon in the months
April, May, and June; and that it occurs soonest after apparent noon in September, October, and Novem-
e are as follow :—
Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
108 50m 9b 45m 10 50m 19" 40m 18> 50™ 181 20m 19h 5m 18h 25m Bh 10m 115 10m 102 20m gh 50m
30. These epochs are considerably less certain than those for the maximum, especially when they occur be-
en 92 10™ and 17 10™, as they depend upon only two years’ observations. The principal minimum occurs
een 8" and 11" p.m. in the months from September till March, in the latter month the westerly declina-
n at 8> a.m. differs little from that at 11" p.m.: in the remaining months the minimum occurs between
-20™ and 7) 40™ a.m. The morning minimum occurs earliest in June and August; the evening minimum
curs earliest in September.
81. Secondary maxima and minima of westerly declination are shewn with moderate distinctness in some
months, but the epochs vary so much from one month to the next as to render it doubtful whether they are other-
wise than accidental : clearer results may be expected from the combinations of the means for two or three
nonths, if sufficient care be taken that only those months are combined which exhibit’ separately similar cha-
| Tacteristics. A careful examination of the projected means, seems to shew the combinations employed for the
following Table, as those best fitted for exhibiting distinctly the changing character of the diurnal variation.
eS 2S
XxXil GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
TABLE 13.—Diurnal Variations of Westerly Declination for different periods deduced from
Table 12.
Six Months.
Sept.
Oct. Twelve
Nov. Sept. to March Months.
Feb. to Aug.
— 2-16
— 2-00
— 1-40
— 1-40
— 1-37
—1-13
—0-72
—0:77
— 0-57
+ 0-36
+ 2-40
+ 4-50
+5-75
+5-48
+ 4:46
| +2-71
| +1-00
+ 0-03
— 1-93
— 2:89
| —3-01
| —3-01
KF OUONIavrPRwWNr OS
—
32. The following are the epochs of maximum and minimum westerly declination from Table 13 in apparent z.
time :
Dec. Jan. Feb. Mar. April. May. June. July. Aug. Sept. Oct. Nov.
Max. 05 50™p.M. jh 5™ p.m. 15 15™ pm. 0» 50™ pm. 0b 35™ p.m.
Min. 85 p.m.—I11 p.m. 8» Om a.m. 6» 30™ 4M. 6b 40™ 4m. 8» p.M.—11" pm. |
be
33. The form of the diurnal curve is the same for each of the periods of three months; the westerly declina-
tion decreases regularly from the maximum till about 8" p.m., whereas in the curves for the summer months,
the rate of decrease receives a check about 5" or 6" p.m. (see Plate I.) No secondary maximum or minimum
is shewn in these means, but the magnet is nearly stationary for several hours in each case, namely from —
85 to 11" p.m. in the months from September to February; from 8" p.m. till 64 a.m. in the mean for March —
and April, from midnight till 3" a.m. in May and June; and from 9» p.m. till 3 a.m. in June and July. The
magnet is stationary for nearly twelve hours about the 23d of March: the transposition of the minimum of
westerly declination from before midnight till about 8" a.m. takes place very gradually in March and Apmil;
this does not appear to be the case, however, in the return of the minimum from 7" a.m. to before midnight,
which oceurs about three weeks before the autumnal equinox.
34. When we examine the diurnal curve deduced from the observations for the whole year (Plate I.), we ob-
serve a secondary maximum of westerly declination occurring at 2" 40™ 4.m., nearly equal minima oceurring at
11" p.m. and 65 a.m.; this secondary maximum is evidently due to the occurrence of the minimum for one —
half of the year about 10" p.m., and for the other half about 7" a.m.; The mean for the year therefore does not
represent, as far as these results are concerned, a real phenomenon ; it is a combination of two distinct results.
35. The previous conclusions are obtained from the means of all the regular daily observations ; no observa-
tion has been rejected how ever much affected by magnetic irregularity ; we have still to inquire therefore to
what extent irregular causes change the diurnal variation. A method has been already proposed and employed —
DIuRNAL VARIATIONS FOR THE MAGNETIC DECLINATION. XX1il
(Makerstoun Observations for 1844, p. 339) for the determination of this question; namely, by the selection of
those days in each month which appear to have been nearly unaffected by irregular disturbance; a method
which it is conceived is considerably preferable to that of rejecting only those days affected with large magnetic
irregularity. The variations for ten days in each month of 1844 will be found p. 339 in the volume for that
year, and for seven days in each month of 1845, p. 5 of the present volume; from these two Tables the follow-
ing Table has been formed :—
__ TasLeE 14.—Diurnal Variations of Westerly Declination for different periods, deduced from Days
; selected as free from irregular disturbance, in the Years 1844 and 1845.
q
1 Six Months.
| Twelve
1 Months.
> 10 é : : P ; —0-99
; . : ‘ ; . — 0-99
R c i A a — 1-05
| ‘ ‘ i : : z — 1.28
KH SOODNIMAMAWHOHO
=— —
36. The numbers in Table 14 will be found projected in dotted lines, Plate I., where the differences of the
| results from the whole series, and from the undisturbed series, will be at once apparent. The following are the
| epochs, in apparent time, of maximum and minimum westerly declination, deduced from the series of Table 14.
‘ Dec. Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov.
Maximum, 04 35™ p.m. 12 5™ pM. 0» 55™ p.m. 0h 50™ p.m. Oh 30™ p.m.
ee aximcim, » 22 SOU atime) Heese sce 8) Wl veeebiddowees F() { — senaWecanee 2h Om aM.
Minimum, ROS MG aereemes SEL cece SMP ms Cactbbeharecs Mle] ~ cbse Gores 9 30™ p.m.
37. The principal results from the undisturbed series for the diurnal variation are as follow :—
In the quarter, September to November, the minimum of westerly declination is shewn with nearly equal
distinctness at night and in the morning; a well-marked secondary maximum occurring at 2 a.m.: a similar
result is exhibited in the following quarter; the morning minimum, however, being less distinctly marked than
that in the evening. In both cases we find, in opposition to what has been previously conjectured, that the
removal of days of disturbance causes the distinct exhibition of a morning maximum previously masked by dis-
turbance. The means for each month from September to February shew the secondary maximum; it is seen
with least distinctness in January. In the couples of months from March till August, no secondary maximum
is shewn, the north end of: the magnet moves eastwards from about 1" p.m. till 74 or 85 a.m., but with less
velocity between 5" p.m. and 3" a.m., than before the former and after the latter hour.
:
Minimum, 55 40™ 4.M. 7» 40™ a.m. 65 45™ a.m. 62 35™ a.m. 7h 30™ a.m.
:
P MAG. AND MET. OBS. 1845 anp 1846. Ff
XXIV. GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
38. Diurnal Variation of the Effect of Disturbance on the Mean Declination—When we deduce the
yearly mean declination from the days selected as free from intermittent disturbance (No. 35.) we obtain the _
following results :—
Mean Declination from all the hourly observations in 1844, = 26° 106, 1845, 9 25-1 a2
pe teaase odes career from the hourly observations in the selected 120 days of 1844, = 25° 17°08
estate neteseef opel oleate eas otelsteeletsiolselot-ictra\otets siete’ = pis lteles pieleiteh= t= stele sa: efel ete OOM scaiecee cee e) == QOL 06
slisataiomnrne sialic alas) cte seie sinisiisias iris olafectele slate eee izaslecteieeisieeiieaeta’s eee oes ees 84 days of 1845, = 25° 11’:39
The effect of disturbances, therefore, on the yewly mean position may be considered zero. When we compare
the monthly means, as deduced from the 10 days selected in each month of 1844 and the 7 days selected in
each month of 1845, with those deduced from all the hourly observations, we find that the average difference
(independent of sign) for the monthly means in these two years is about 0’-2 ; a difference which may be referred
with more probability to the effects of regular laws, or the fewness of the observations, than to the effect of —
intermittent disturbance, which is zero on the yearly mean. It is evident, therefore, that, for the purpose of
the present discussion, we may assume, with little probable error, that the monthly mean from both series has
the same value (as in Tables 13 and 14), and take the differences of the hourly means in the two series as
measures of the effect of disturbance; any possible error in this assumption can affect the values of the dif- —
ferences but slightly ; the epochs of the maximum and minimum would still remain unaltered. In this man-
ner the following Table has been formed :—
TABLE 15.—Differences of Disturbed and Undisturbed Diurnal Variations of Westerly Declination,
as deduced from Tables 13 and 14, exhibiting the effect of Irregular Disturbance on the Hourly
Mean Positions.
Mak. Dec. Sept. Sept. March
Mean Jan March May. July Oui ‘A to Year.
Time. Feb. April Jane sis Nov. Feb Aug
h. m ’ , t. , , ‘ ri ‘
12 10 — 1-06 — 0-65 — 0-95 —0-77 — 1-03 — 1-05 — 0-79 — 0-92
13 10 — 0-83 — 0-82 —0-83 —0-73 —0-91 — 0-87 — 0-80 — 0-83
14 10 — 0-55 — 0-59 — 0-52 — 0-57 — 0-34 — 0-44 — 0-56 — 0-50
15 10 — 0-23 —0-51 — 0-43 0-00 — 0-23 — 0-23 — 0-32 — 0-27
1 10 +1-08 +1-08 +0-76 + 0-49 + 0-65 + 0-86 +0:77 +0-81
20 +1-:10 | +0-83 +0-81 +0-52 | +1-07 +1:08 | +0-72 + 0-90
3 10 +0:77 | +0-75 | +0:56 | +0-56 | +0-95 +0-86 | +0-63 + 0-74
4 10 +0-86 | +0-77 | +0-60 | +0-48 | +0-49 +0:67 | +0-61 + 0-64
5 10 +0-19 — 0-26 + 0-35 +0-21 +0-17 +0-18 +0-10 + 0-24
6 10 —0-41 —1-01 +0-16 — 0-47 — 0-89 — 0-64 — 0-44 — 0-54
7 10 —0-58 | —1-20 | —0-15 | —0-63 | —1-07 —0-82 | —0-66 —0-74
8 10 — 1-37 — 1-05 — 0-53 —0-71 —1-77 — 1-57 —0-77 —1-17
9 10 -—1-17 — 1-08 — 0-70 — 1-38 — 1-28 — 1-22 — 1-05 —1-13
10 10 — 1-08 — 1-03 — 0-67 —1-21 — 1-55 —1-31 — 0-97 —1-14
Il 10 — 1-21 —1-19 — 0-93 — 0-69 — 1-54 — 1-37 —0-94 .|| —1-15
39. The conclusions from this Table are,—
lst, That the greatest effect of disturbance in increasing the westerly declination occurs
In Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov. —
About 1» 40™ p.m. 9h a.m. to 1 pM. 1» 40™ p.m. 8? aM. 8) aM.
From the Means of all the Observations. From the Means of the Undisturbed Days.
Min. Max. Min. Max.
| Nov. Dec. Jan. 8) A.M. 8) P.M. 114 p.m. 93h aM.
Feb. March, April. 10® a.m. 63h p.m. 98 pM. 95 a.m.—4" p.m.
| May, June, July, 635 a.m. 9» p.m. 8" p.m.—I1» a.m. 105 a.m.
DIURNAL VARIATIONS FOR THE MAGNETIC DECLINATION. XXV
‘Throughout the year, therefore, the effect of disturbance in increasing the westerly declination is greatest be-
tween 82 a.m. and 2> p.m.; being near the latter hour for the months about mid-summer and mid-winter, and
near the former hour for the intermediate months.
2d, That the greatest effect of disturbance in decreasing the westerly declination occurs
in. Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov.
- About 8hp.w.—12" pm. 62 ~pmM—Ill® pm. 11hepmM—12" pm. 95 p.m.102 p.m. 8) p.w.—I11" p.m.
3d, That the effect on the hourly mean westerly declination is zero
In Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov.
About 53° a.m.and5}"° p.m. 45 a.m. and 55p.m. 5" a.m. and63"p.m. 4° a.m. and 53?p.m. 43" a.m. and 53" p.m.
Diurnal Variation of frequency of Positive and Negative Excursions from the Hourly Mean Position.—The
number of observations which were to the west of the hourly mean for each month in 1844 and 1845 having
been obtained, the following Table was formed, containing the numbers per cent. for quarterly groups of months.
TABLE 16.—Numbers of Excursions of the Declination Magnet in 100 which were to the West ;
1st, of the Hourly Means, as deduced from all the Hourly Observations in each Month of 1844
and 1845 ; and, 2d, of those deduced from the Selected Days.
With reference to Mean of all. With reference to Mean of Selected Days.
Maken) n= fp) cose Pils sen
Mean Nov. Feb. May. Aug. Nov. Feb. May. Aug.
Time. Dec. March. | June. Sept. Year. Dec. March. | June. Sept. Year.
Jan. April, | July. Oct. Jan. April. July. Oct.
12 10 63-9 66-7 55-1 60-1 61-4 39:9 47-1 36-1 32-3 38-8
13 10 67-7 63-4 60-8 59-5 62-8 43-7 49-0 31-0 31-6 38:8
14 10 57-6 60-8 57:6 53-8 57-4 46-2 51-0 40-5 42-4 45-0
15 10 58-9 59:5 47-5 48-7 53-6 53:8 51:0 44-9 42-4 48-0
16 10 50-6 50-3 44-3 50:0 48:8 46:8 53-6 36-1 38-0 43-5
17 10 53-2 49-7 42-4 35-4 45-1 46-2 55:6 43-0 47-5 48-0
18 10 34-8 45:8 43-7 26-6 37-6 58-2 66-7 50-6 56-2 57-7
19 10 37-3 45-1 42-4 32-9 39-4 66-5 65-4 47-5 58-2 59-3
20 10 33°5 39-9 41-1 36-1 37-6 67-7 59-5 56-3 62-0 61-4
21 10 36-7 42.5 43-7 37-3 40-0 7145 70-6 65-2 61-4 67-1
22 10 36-7 34-6 47-5 43-7 40-7 70-9 64-7 69-6 58-2 65-9
23 10 40:5 42:5 46:8 45-6 43-9 60-8 62-1 61-4 66-5 62-7
0 10 38-6 39-2 45-6 45-6 42-3 67-7 65-4 65-2 68-4 66-7
1 10 40:5 43+1 44-3 47-5 43-9 63-3 68-0 58-2 65-8 63-8
2 10 36-1 43-1 44-9 41-8 41-5 64-6 64-7 63:3 64-1 64-1
3 10 46-2 39-2 47-5 45-0 44-5 65:8 66-7 58-2 53:8 61-1
4 10 43-7 41-8 49-4 45-6 45-1 62-0 70:6 56:3 57:0 61-4
5 10 53-8 53-6 48-7 50-6 51-7 59-5 52-3 41:8 53-2 51-7
6 10 65-2 68-6 47-5 63-3 61-1 58-2 49-0 43-0 53-8 51:0
7 10 70-9 69-3 57-6 63-9 65-4 48-7 47-1 38-6 50-6 46:3
8 10 72:8 68-6 61-4 63-9 66-7 38-0 45-1 34-2 38-6 38-9
9 10 69-6 65-4 67-1 69-0 67-8 54-4 44.4 40:5 34-2 43-4
10 10 69-0 63-4 61.4 67-7 65-4 39-2 44.4 38-6 29-1 37-8
11 10 67-1 60-8 63-3 67-7 64-8 36-7 47-1 35:5 41-1 40-0
40. The following are the epochs of maximum and minimum frequency of the positive or westerly excursions.
Aug. Sept. Oct. 65 a.m. 93 P.M. 105 p.m.—1" a.m. 04 Noon.
XXV1 GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
41. If we consider the mean position as deduced from all the observations in each month, we find that the —
number of observations for which the declination was to the west, is least from 6" a.m. to 10" a.m., and greatest
from 6" p.m. to 105 p.m,; the reverse of course holding for the deviations to the east : if, however, we consider —
the hourly mean position deduced from the days selected free from disturbance, we find that the number of —
westerly observations is greatest from about 9" a.m. till noon, and that it is least from 8 p.m. till 1" a.m.; which
result is nearly the reverse of the other. As the maximum effect of disturbance, in increasing the westerly
declination (No. 36), occurs about the same time as the maximum frequency of westerly excursions from the
undisturbed position (as seen in the second result), the displacement westerly of the mean position, by dis-
turbance, reduces the number of westerly excursions from that position to a minimum (as seen in the first
result). The same explanation applies to the other epoch.
Diurnal Variation of the Sums of Disturbances of the Hourly values of Magnetic Declination in 1844 and
1845.—The following table contains the sums, for 100 observations, of the deviations of the north end of the
declination magnet from the monthly mean positions at the corresponding hours, the latter bemg deduced from
the days selected as free from irregular disturbance.
TABLE 17.—Hourly sums, for 100 Observations of Westerly Declination in 1844 and 1845, of the
Positive and Negative Excursions from the Approximate Normal Positions for each Hour.
Positive (W.) Disturbances. Negative (E.) Disturbances.
Mak. |S ee = |, Oe en ee
Mean Nov. Feb. May. Aug. Nov. Feb. May. Aug.
Time. Dec. March. | June. Sept. Year. Dec. March. | June. Sept. Year.
Jan. April. July. Oct. Jan. April. July. Oct.
h. aay , al ‘ : , Ti ‘ 7 , i 7 al , i ‘ 4 v ii ¢
12 10 a7 138 73 101 97 272 305 259 339 294
13 10 87 144 73 107 102 277 300 253 313 286
14 10 114 159 88 157 129 198 264 215 270 237
15 10 135 146 135 177 148 178 208 159 225 193
16 10 128 190 138 141 149 147 171 172 190 170
17 10 109 | 167 157 225 164 123 110 134 135 126
18 10 178 189 176 286 207 69 72 116 83 85
19 10 209 203 164 294 218 - 43 55 118 78 74
20 10 236 218 216 344 254 38 69 80 48 59
21 10 275 258 252 335 281 40 56 Clif 73 62 é
22 10 249 230 261 260 251 51 59 66 92 67
23. 10 217 206 243 260 232 66 72 98 . 67 76
0 10 294 241 219 250 251 5d 79 88 67 73
1 10 288 250 224 250 253 72 66 99 94 83
2 10 279 257 219 268 256 64 77 81 91 78
3 10 260 243 188 244 234 112 91 109 131 111
4 10 233 213 159 197 201 122 93 108 109 108
5 10 160 149 95 157 141 150 212 113 127 150
6 10 159 108 71 123 116 294 309 125 251 244
7 10 97 108 56 97 89 274 292 168 240 243
8 10 62 95 40 70 67 382 304 194 364 311
9 10 76 120 42 52 72 303 348 170 399 305
10 10 77 101 48 62 72 345 312 158 393 302
11 10 52 94 45 87 70 374 311 220 355 315
42. The results from the Table are as follows :—
1st, The sum of positive or westerly disturbances
In Nov. Dec. Jan. Feb. March, April. May, June, July. Aug. Sept. Oct.
Is amaximum at 05 Noon. 9 a.m. and 2® p.m. 10h a.m. 82? a.m.
Is a minimum at 11° p.m. 8 p.w.—11® p.m. 83" P.M. 92 pM.
2d, The sum of negative or easterly disturbances
Is amaximum at 85—11) p.m. 9) pm. 123 a.m. 91> Pm. :
Isaminimum at 8 a.m. 7) a.m.—10® a.m. 105 a.m. 85 «.m.—0Oh Noon. —
DIURNAL VARIATIONS FOR THE MAGNETIC DECLINATION. XXVll
TABLE 18.—Mean Difference of the Observations of Magnetic Declination in 1844 and 1845 from
the Monthly Means, at the corresponding Hour in each Year, as deduced from all the Regular
Observations.
j Mean Westerly Difference. Mean Kasterly Difference. Mean Difference.
k. 7 Ralcmee |
| a Nov. | Feb. | May. | Aug. Nov. | Feb. | May. | Aug. Nov. | Feb. | May. | Aug.
A Time Dec. | Mar. | June. | Sept. || Year. | Dec. | Mar. | June. | Sept. || Year. | Dec. | Mar. | June.| Sept. |) Year.
1 Jan. | April.| July. | Oct. Jan. | April.| July. | Oct. Jan. | April.| July. | Oct.
h. m. 4 , , , , , , , , , , , , , 1
12 10 1-43 | 1-77} 1-47} 1-80] 1-62 | 2-54) 3-54) 1-80} 2-71] 2-58 | 1-83] 2-36] 1-62] 2-16] 1-99
13 10 1-51| 1-84] 1-33] 1-71}} 1-60 | 3-16) 3-18} 2:07] 2.51] 2-70 | 2-04} 2-33] 1-62] 2-03]! 2-01
14 10 1-33 | 1-98} 1-30] 2-01 |) 1-66 }| 1-80) 3-07] 1-77] 2-34] 2-23 } 1-53] 2-41] 1-50] 2-16] 1-90
15 10 1-38} 1-53] 1-51} 2:04]} 1-60 | 1-98| 2-25] 1-36) 1-94]| 1-85 ] 1-63) 1-82) 1-43] 1-99] 1-72
16 10 1-35|] 1-76} 1-70) 1-63 || 1-61 ]} 1-39) 1-78} 1-36] 1-63} 1-53 } 1-37] 1-77] 1-51) 1-63] 1-57
Ply 10 1-05} 1-36| 1-91] 2-73 || 1-67 | 1-20) 1-34] 1-41] 1-49] 1-37 | 1-12] 1-35} 1-62) 1-93}| 1-51
18 10 1-81 | 1-35} 1-61] 3-84]] 1-98 ]| 0-97] 1-14] 1-25] 1-39] 1-19 | 1-26) 1-24] 1-41] 2-04|| 1-49
19 10 1-53| 1-31] 1-64] 3-00] 1-81 | 0-91} 1-08) 1-21] 1-47] 1-17 ] 1-14] 1-18] 1-39) 1-97] 1-42
20 10 1-94| 1-72) 1-84] 2-90 || 2:09 }| 0-98] 1-14) 1-28) 1-64] 1-26 | 1-30} 1-37) 1-51 | 2-09|| 1-57
21 10 2-00) 1-68) 1-76} 2-67 |) 2-01 | 1-16| 1-24) 1-37] 1-59]) 1-34 | 1-47] 1-43] 1-54] 1-99) 1-61
22 10 1-98 | 1-99} 1-45] 1-93} 1-82 } 1-15) 1-06} 1-31) 1-50] 1-25 | 1-45] 1-38] 1-38] 1-69] 1-48
23 10 1:80] 1-48} 1-72} 1-64] 1-66 | 1-23] 1-10} 1-51) 1-38] 1-30 | 1-46} 1-26] 1-61 | 1-50] 1-46
0 10 2-22 1-93} 1-54] 1-59] 1-73 | 1-39) 1-24] 1-29) 1-33] 1-32 }| 1-71] 1-51} 1-40) 1-45] 1-52
1 10 2:16} 1-62) 1-75] 1-73 || 1-80 | 1-47) 1:23] 1-39] 1-56) 1-41 | 1-75} 1-40|] 1-55] 1-64) 1-58
2 10 2.37 | 1-80] 1-59} 2-12]) 1-95 | 1-34] 1-56) 1-30] 1-52] 1-38 | 1-71] 1-55) 1-43) 1-77] 1-62
3 10 2-04] 2-07) 1-52] 2.04] 1-91 1-76] 1-33} 1-37] 1-67] 1-53 | 1-89] 1-62] 1-44] 1-84 |) 1-70
4 10 1-99| 1-73) 1-31] 1-62] 1-65 }| 1-55} 1-25) 1-27] 1-36] 1-36 | 1-74] 1-45] 1-29] 1-48] 1-49
5 10 1-47 | 1-79| 1-04] 1-38]] 1-43 ] 1-71] 2-07) 0-98} 1-42] 1-53 ]| 1-58) 1-92] 1-01} 1-40] 1-48
6 10 1-98 | 1-74] 0-98| 1-61 || 1-62 | 3-71) 3-79 | 0-88) 2-78 |) 2-54 | 2-58] 2-38) 0-93} 2-04] 1-98
7 10 1-46 | 1-60} 0-95] 1-37] 1-36 | 3-56) 3-60} 1-29) 2-42] 2-57 | 2.07; 2-21] 1-09] 1-75] 1-78
8 10 1-72] 1-61} 0-90) 1-84] 1-53 }| 4-60) 3-52} 1-44) 3-25] 3-06 | 2-50} 2.21) 1-11] 2-35] 2.04
9 10 1:54] 1-87| 0-80} 1-73 || 1-48 }| 3-52) 3-54) 1-64) 3-84] 3-12 | 2-14|] 2-45) 1-08} 2-38] 2-01
| 10 10 1-64] 1-65) 0-86] 1-69 |] 1-47 | 3-65| 2-86) 1-37) 3-54] 2-77 | 2-26} 2-09| 1-06| 2-29] 1-92
' 11 10 1-66 | 1-72} 1-05] 1-74]} 1-54 ]| 3-39] 2-67) 1-81 | 3-64] 2-84 | 2-23) 2.09; 1-33] 2-35|| 2-00
43. Diurnal Variation of the Mcan Excursions of the Declination Magnet, from the Monthly Mean Positions
for each Hour, from the Observations for 1844 and 1845.—In the previous investigations, we have considered
the effect of irregular disturbance on the hourly mean position, the frequency of positive and negative excur-
sions, and the sums of the latter referred to the hourly means of selected days ; we have still to consider the
mean values of the excursions which may evidently follow different laws from the sums, as the latter may de-
pend upon both the number and mean value. Table 18 has been formed in the following manner: Half the
sums of the differences of the hourly observations from the monthly means for the corresponding hours being
positive and half negative, half the sums were divided by the number of positive excursions to obtain the first
‘portion of Table 18, and by the number of negative excursions to obtain the second portion; the third portion
is obtained by dividing the whole sums by the whole number of observations. Table 19 has been formed simi-
larly, excepting that the sums of the positive and negative disturbances are unequal (See Makerstoun Observa-
ms for 1844, p. 350). The quantities in Table 18 have been termed mean differences, those in Table 19,
an disturbances ; the former being related to the means for all the observations, the latter to the means of
undisturbed days. The epochs of maximum and minimum are nearly the same for both Tables ; those from
Table 19 only are given, as it is the best exponent of the laws with reference to approximate normal mean
positions.
Mean Westerly Disturbance. Mean Easterly Disturbance. Mean Disturbance.
Max. Min. Max. Min. Max. Min.
W., Dec., Jan., 1" p.m. 10® p.m. 6b_9) p.m. 82 aM. 62-11" p.m. 52 a.m.
., Mar., April, 25 p.m. 65-115 p.m. 94 p.m. b_10 a. 95 p.m.—l® a.m. 6? aM.
y, June, July, 8'-11"? a.m. 9 pm. 124° am. 82? am. & 59 p.m. 1235 a.m. & 112 a.m. 54-10" p.m,
» Sept., Oct., 83 a.m. 9 pm. 10° pm. 88 am. 10° p.m. 5} P.M,
__ 44, The epochs given above can be considered only roughly approximative, since the value of the average
‘excursion for the hours about the times noted often varies very slowly. The points of most consequence in
| these results are as follow :—
MAG. AND MET. oss. 1845 anv 1846. g
XXVlli GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
lst, The average westerly excursion from the mean position for the hour is greatest in the winter and
spring quarters about 1 or 22 p.m.; and about 8" a.m, in the summer and autumn quarters, although the
values vary little in the summer quarter from 4" a.m. to 1" p.m., and in the autumn quarter a secondary
maximum occurs at 3" p.m. 7
2d, The average easterly excursion is least about 8) a.m, in each quarter, with the exception of summer,
in which it is equally small at 5> p.m.: the average easterly excursion from the hourly mean of all the obser- —
vations (Table 18) has the minimum decidedly marked at 6" p.m.
3d, The minimum westerly excursion occurs about 9} p.m. in all the quarters. “f
4th, The maximum easterly excursion occurs earliest in winter, about 6” p.M., and latest in summer, —
namely after midnight; while in the equinoctial quarters it occurs betwixt these epochs, the values varying 4
little from 6" p.m. till midnight. q
5th, The mean excursion, without reference to direction, has its greatest value earliest in winter, about —
64 p.m.; about 94 and 10 p.m, in the equinoctial quarters; and in summer there are two maxima of nearly —
equal value, immediately after midnight and at 11" a.m., with a secondary minimum about 6" a.m.
6th, The mean excursion has its least value about 5" to 6" 4m. in winter and spring; a secondary mini- —
mum, as noted above, occurs about the same hour in summer, and 45 in autumn; but the actual minimum _
occurs, distinctly marked, between 6" and 10" p.m. in summer, and, less distinctly marked, about 5® p.m. in —
autumn. a
45. It appears from these results, that the diurnal law of mean disturbance is not constant throughout the
year, as has been supposed; in fact the law for summer is nearly the reverse of that for winter, while that for
autumn is nearly intermediate between the two, a secondary maximum occurring in the latter at 92 a.m, In ©
the winter and spring quarters there is a tendency to a secondary minimum about 45 or 5? p.m.
TABLE 19.—Mean Disturbances of Magnetic Declination, or Differences from the Monthly Means, at
the corresponding Hours in 1844 and 1845, as deduced from the selected series in each Year. \
Mean Westerly Disturbance. Mean Easterly Disturbance. Mean Disturbances. \
Mak. {
Mean |} Nov. | Feb. | May. | Aug. | Nov. | Feb. | May. | Aug. } Nov. | Feb. | May. | Aug. '
Time. || Dec. | Mar. | June.| Sept. || Year. | Dec. | Mar. | June.| Sept. || Year. } Dec. | Mar. | June. | Sept. || Year.
Jan. | April.| July. | Oct. Jan. | April.| July. | Oct. | Jan. | April.| July. | Oct. ‘a
.74| 2:22] 1-66| 2.21|| 1-95 -
-82| 2-22] 1-63] 2-10]| 1-94 -
-56| 2-12] 1-52] 2-14 || 1-83
-56| 1-77] 1-47] 2-01 || 1-70
-38] 1-81] 1-55] 1-66|| 1-60
16] 1-39] 1-46| 1-80]} 1-45
24] 1-29] 1-46] 1-85 || 1.46
.26| 1-29} 1-41] 1-86]] 1-46
-37| 1-43] 1-48] 1-96]] 1-56
58| 1-57] 1-65] 2-04]] 1-71
50] 1-45] 1-64] 1-76|| 1-59
-42| 1-39] 1-71] 1-64|] 1-54
75| 1-60| 1-54] 1-59|| 1-62
1-58| 1-62] 1-72]| 1-68
-72| 1-67 | 1-50] 1-80) deag 4
-86| 1-67| 1-49] 1-88 || 1-72 ;
1-53| 1-34] 1-53 || 1-54 ig
1-81] 1-04] 1-42|| 1-45
2-:09| 0-98| 1-87 || 1-80
2.00| 1-12] 1-69|| 1-66
: : 2-17 || 1-89
2-34| 1-06] 2-26 |) 1-89
2-06 | 1-03] 2-28) 1-87 J
2-03| 1-33] 2-21 || 1-92
12 10|| 0-96] 1-47) 1-02| 1-56|| 1-25 | 2-26) 2.88) 2-02] 2-50|| 2-40 |
H13 10]) 1-00} 1-47] 1-17| 1-68]) 1-32 ]| 2-45| 2.94] 1.98] 2-29]) 2.33 |
114 10|| 1-23] 1-56] 1-09} 1-85] 1-44 ] 1-84] 2.69] 1-81] 2.34] 2.15 |
115 10]| 1-25| 1-43] 1-50] 2-09|| 1-54 } 1-92] 2-12} 1-44] 1-96] 1-85
116 10] 1-37] 1-77) 1-92] 1-86} 1-71 1-38] 1-84] 1-34] 1-53) 1-51 |
#17 10) 1-18) 1-56) 1-82] 2-37) 1-71 9 1-14) 1-24; 1-18] 1-29}) 1-21
118 10]| 1-53] 1-39) 1-74] 2-57] 1-79 } 0-82) 1-08] 1-18] 0-93|| 1-01
119 10]| 1-57} 1-55} 1-72) 2-52) 1-83 | 0-64] 0-80] 1-12] 0-93 || 0-90
120 10|| 1-74] 1-83] 1-92] 2-77] 2-07 | 0-59) 0-86) 0-92} 0-63|| 0-76 |
121 10) 1-92] 1-83] 1-94] 2-73); 2:09 } 0-69} 0.95} 1-11] 0-95 || 0-93 |
22 10/| 1-76] 1-78] 1-88] 2-23] 1-90 } 0-87) 0-84) 1-08) 1-11]] 0-99
123 10|| 1-78) 1-66} 1-98) 1-96|| 1-85 } 0-84] 0-95] 1-26] 1-00] 1-02
10|| 2-17} 1-84} 1-68) 1-83 || 1-89 | 0-86} 1-14] 1-27] 1-06] 1-08
10 || 2-27} 1-84/ 1-92) 1-90} 1-98 }{ 0-98; 1-03} 1-18] 1-38] 1.
10 || 2-16] 1-98} 1-73) 2-10|) 1-99 | 0-90) 1-08] 1-11] 1-26} 1-09
10)| 1:98} 1-82} 1-61] 2-27} 1-91 1-63} 1-36) 1-31] 1-42] 1.42 |
10 || 1-88} 1-51] 1-41] 1-74 J
10]) 1-34] 1-43} 1-14] 1-48
1-37] 1-10] 0-82) 1-14) 1-13 } 3-52} 3-03] 1-09} 2-72|| 2-49
10 || 0-99; 1-15 | 0-72} 0-95 || 0-96 | 2-67) 2:75 | 1-37] 2-43 || 2-26
10 || 0-82} 1-05} 0-58} 0-91 | 0-86 | 3-08} 2-77) 1-48} 2-96 || 2.54
10|| 0-70] 1-35} 0-51} 0-77 || 0-83 | 3-33} 3-13] 1-43] 3-03 | 2-69
10 || 0:99} 1-14] 0-62] 1-07} 0-95 } 2-84] 2-80} 1-29; 2-77 || 2.43
0-71 | 1-00} 0-64} 1-05 || 0-86 | 2-95] 2-94] 1-70] 3-02|| 2-63
—
SCOMDNANARWNHOK OS
i=)
oN OMe ol CSTE
wre Oh oN cro
bo
j=)
Oo
—
—
~J
—
ja
pS
NO DD DOD ND Se L
. . mie 5
oo
o
—_
i
—
(=)
,
46, Diurnal Variation of the probable error of an Observation of Magnetic Declination.—It appears from
the previous conclusions, that the best hour to make an observation of magnetic declination in winter and
spring, is about 6" a.m.; in the summer quarter, from 55 p.m. to 10" p.m.; and in autumn from 4° to 5 P.M.
DIURNAL VARIATIONS FOR THE MAGNETIC DECLINATION. XX1X
he least and greatest values of the probable error of an observation from the monthly mean of the hour, for
akerstoun in 1844 and 1845, were approximately as follow :—
“Winter, Least Probable Error, 5" a.m. = 08 Greatest Probable Error, 6% p.m. = 1/8
MRA Scien betes rene Ny RORY fos JR ba Sino Pay aa: oe ee eee 7
nes, 6upar. = i026 MA ne Aaary Oa ara leat Coal) at, oe Ll
_ ee og OL P.M... 01:9 Loge eevuaek tent chten ak Oph PIM == 16
It is obvious, however, that even at the same place the probable error will vary with the year. In 1847,
the probable error of an observation would have been greatly increased by the excessive magnetic storms of
¢ year: neglecting these rare and excessive disturbances however, the values given above cannot be far from
Variation of Magnetic Declination with reference to the Moon's Hour-Angle—The following Table has
been constructed from Table XI. 1844, p. 342, and Table IX., p. 6, of the present volume.
_ TasBLE 20.—Variations of Magnetic Declination with reference to the Moon’s Hour-Angle for the
Winter and Summer Lunations, and for all the Lunations of the Years 1844 and 1845.
5 RET Ot SP IE ET ” * TNEL IE
Winter Lunations. Summer Lunations. All the Lunations.
1845. Mean. 1844. 1845. Mean. [| 1844. 1845. Mean.
—0-11 — 0-23 +0-03 + 0-36 +0:19 — 0-21 +0-10
— 0-02 —0:04 | +0-29 | +0-27 + 0-28 . +0-11
— 0-03 +0-13 +0-06 | +0-34 . +0-13
+0-02 +0-16 — 0-04 . : : +0-09
+0-17 +0-27 —0-18 . 9 . — 0-08
+ 0:27 +0-33 +0-16 : ; 3 +0-10
+ 0-28 +0-36 + 0-40 : : . +0-02
+ 0-16 +0-19 + 0-02 : : . +0-05
— 0:02 — 0-03 — 0:49 2 2 : —0-15
— 0:26 — 0-40 — 0:32 : : 4: — 0-21
—0-15 — 0-42 + 0-08 : : . —0-16
7 . — 0-28 —0-32 — 0-04 c : : —0-01
———
47. It appears from this Table, that the mean declination varies with the moon’s hour-angle, as follows :—
1st, In winter (when the moon is in opposition north of the equator) the maximum of westerly declina-
tion, for this variation, occurs when the moon is on the meridian of 11", or about an hour before the inferior
ransit ; the minimum occurs between 4° and 5? before the superior transit. The group for each year gives
most exactly the same result, but the range of the variation in 1844 was 1’-2, while in 1845 it was under 0’-6.
2d, In summer the declination needle has a double easterly and westerly motion.
The maximum westerly declination occurs about 24 hours after the superior transit.
The minimum westerly declination occurs about 6 hours before the superior transit.
A maximum westerly declination occurs at the inferior transit.
A minimum westerly declination occurs about 8 hours after the superior transit.
The results for the summer lunations in the two years agree to a considerable extent ; the maximum at
inferior transit, however, is not nearly so distinctly marked in 1845 as in 1844, The range of the varia-
ions for the summer lunations in the two years, is for 1844 = 0-9, for 1845 = 0'8 nearly.
_ 3d, The result from the lunations during the whole year, is a combination of the two results previously
The principal maximum occurs at the inferior transit, and the principal minimum about 6 hours after it.
Several single lunations confirm the accuracy of these conclusions. See the volume for 1844, pp. 342, 343.
XXX GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
HoriIzONTAL COMPONENT OF MAGNETIC FORCE.
48. The observations in connection with this element are of two classes :—1st, Observations for the abso-
lute value of the component, made by the method of Gauss ; and, 2d, Observations of the bifilar magnetometer for
the variations of the component. The observations for the absolute value were made with two different instru
ments ; first, from 1843 till April 1846, with a 15-inch deflecting bar, by Gauss’s original method; and —
second, after April 1846, with 3-65-inch deflecting cylinders, by Dr Lamont’s modification of Gauss’s method:
the whole processes have been already described in the Introductions to the different volumes of Makerstour
Observations. The followmg Table contains the computed values of (X) the horizontal component corre-
sponding to the reading of the bifilar magnetometer at the time of vibration, and also the values reduced to the
mean reading of the bifilar for the year of the observations ; to these are affixed approximate weights, depending
upon the number and agreement of the partial results, and employed in obtaining the mean in the last column :
TABLE 21.—Results of Observations for the Absolute Value of the Horizontal Component of Magnetic
Force, made in the Years 1843—1849, with the Resulting Mean Value, corresponding to the
Mean Reading of the Bifilar Magnetometer for the respective Years in which the Observations
were made.
During. Observation. X Reduced to Mean Value of
the Mean ° X for the Mean
Bifilar for the "| Bifilar Reading
Values of X. Mean Bifilar , afac ea
Reading.
1843.
August 11 . 511.5
August 21 : 511-1
November 8 . 510-9
November 14 : 507-6
December 18 . 515-2
1844.
February 17 38: 524-6
March 23 : 520-8
May 29 : 535-7
August 5 % 540-7
December 26 3: 539-5
December 30 . 534-9
1845.
December 29 . 548-9
December 30 . 539-1
1846.
February 16 , 553-2
April 14 ° 562-3
NN WWe
NNWNNNe
fH
3
—Q
tJ)
‘=|
=
)
®
A= I
®
=
ao
3
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‘
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q
ow bo
bo &
1847.
May 31 . 574-8
June 15 . 576-7
September 11 . 545-0
1849.
June : 598-0
October ce 568-0
3°65-inch Deflect-
49. The results for the large bar indicate an increase of absolute horizontal force from year to year betwe
1843 and 1846 ; those for the small bar exhibit a similar fact, although the considerable difference between the
results for June 19 and October 11, 1849, throw some doubt on the amount of increase. K
From these observations the increase of the horizontal component in absolute measure (see No. 53.) —
From 1843 to 1845, = 0:0080 = 0-00400 yearly.
From 1844 to 1846, = 0-:0082 = 0:00410 .. ... Mean of all, = 0-00388 yearly.
From 1847 to 1849, = 0:0071 = 0:00355 ......
HoriIzZONTAL COMPONENT OF MAGNETIC FORCE. XXXI1
50. The following Tables have been deduced from the observations of the bifilar magnetometer in the same
janner as the Tables already given for the magnetic declination. The variations are expressed in terms of the
vhole horizontal component, the latter being equal to unity.
TABLE 22.—Monthly Means of the Variations of the Horizontal Component of Magnetic Force
at Makerstoun.
1847.
January | 005055} -008747) -012663| -014943 | -016211] -017925| -017805
February | -005230; -008826) -012845 | -015013/ -016316)| -017573| -017649
March | -005627| -008584| -012661 | -014988| -016354] -017806| -018064
April | -005439| -008760)| -012976| -014890| -016354)| -017731) -018406
May -006492| -009769| -013679| -015340| -016716| -017751| -019054
June 006786 | -010233 | -014425| -015645 -016570)| -018455| -019316
July 006714] -010104| -014584} -015572)| -016939]| -018146| -019305
August | 006796 | -010257| -014376| -015407 | -016388) -018016| -019116
September -007054 | 010542} -014360)| -015078| -016233| -017857| -018552
October | -007482| -010774| -014344| -015461 -016480| -016981| -019230
November -007692| -011579| -014740| .015851! -017161]| -017584)| -019029
December | .008239| -012065| -015212| -015895 | -017775| -018591| -019010
51. Monthly Mean Values of the Variations of the Horizontal Component.—The horizontal force has in-
reased in the greater number of cases from month to month; in March or April, and in August or September,
he mean is generally less than in the immediately preceding months. The means for 1848 and 1849 are consi-
erably less accurate than those for the preceding years, depending as they do on only two daily observations ;
nd the means for the end of 1846 and for 1847 are much affected by excessive disturbance.
TABLE 23.—Yearly Means of the Variations of the Horizontal Component of Magnetic Force,
with the Secular Change.
Secular Increase.
Horizontal
Component. Each Mean of
Year. 4 Years.
0-006550
-010020 -003470
-013905 -003885
-015340 -001435
-016625 -001285 -002519
-017868 -001243 -001962
018711 -000843 -001202
-020611 -001900 001318
52. Table 32 contains the yearly means of the quantities in Table 22, together with the resulting yearly
es of the secular change. The secular change appears to have been very large in the years 1842 to 1844,
onsiderably smaller and more regular in the years from 1844 to 1847; the change from 1847 to 1848 is
ler, and that from 1848 to 1849 is greater, than for each of the preceding three years. It is not impro-
le that the change from 1842 to 1844 is increased by instrumental causes, such as stretching of the sus-
sion wires of the magnet, while the variation of the changes in 1847-9 is evidently connected with the great
urbances of the year 1847-8. If we take the mean yearly secular change from 1845 till 1849, as probably
flected by instrumental error, we find it = 0-:001318, the horizontal component being unity ; or, if we take
absolute value of the horizontal component, = 3-388, we find—
MAG. AND MET. OBS. 1845 anp 1846. h
XXxX1l GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
53. The mean yearly secular change of the horizontal force in absolute measure,
By the observations of the bifilar magnetometer, = + 0:00446
By the observations for the absolute force (Table 21), = + 0-00388
Such a near agreement is, perhaps, more than could have been expected: if the observations with the small |
deflecting bar were neglected (No. 49), the agreement would be even greater. 6
54. It has been shewn, No. 38, that when we deduce the yearly mean declination from the days which ve
selected as little affected by intermittent disturbances, the result is almost precisely the same as that deduced
from the whole ordinary observations, and therefore from the days disturbed ; a similar comparison being made
for the horizontal component, we find as follows :—
The yearly mean of the horizontal component, as deduced from the 120 days selected as nearly free from disturbance, —
In 1844, is greater than that deduced from all the hourly observations of the year by 0-000189.
Dil OAD cs nsinrasit chester sive eligi ap 7s kidelap oy erate bia See sea peiitethwRerbes saa eee see 0-000154.
The effect of disturbance in both years was to diminish the mean value of the horizontal component on the
average by 0000172 of the whole component. It was found for 1844 (see the volume for that year, p. 365) _
that a more careful selection of 60 days (5 in each month) shewed even a greater effect of disturbance, namely
0:000251 for that year. '
TABLE 24.—Monthly Variations of the Horizontal Component of Magnetic Force, free from
Regular Secular Change.
| 1846 1842 1842
Month. 1842. | 1848. | 1844. | 1845. | 1846. | 1847. 1848. 1849. | to to to to
|| 1845. | 1849. | 1849. | 1847.
Prefix. 0-000 0-000 0-000 | 0000 0-000 | 0°00 0-000 0-00 | 0-000 0-000 0-000 0-000
January || +100 |+470 |+050 |+114 |+213 |+0409 |—219 |—0339 |+183 |+016 |+100 |+339
February | —015 |+232 |-003 |+091 |+204 |—0007 |—500 |—0271 ||4+076 |-143 |—034 |+125
March +092 |—327 |—422 |—027 |+128 |+0162 |-210 |—0413 ||-171 |—084 |-127 |—098
April | 386 |-468 |—342 |-218 |+014 |+0023 |4007 |—0141 ||-353 |~024 |-189 |-344
May 4377 |+224 |+126 |+139 |+262 |-0021 |+530 |+0462 |+216 |+308 |4+262 |4+277
June +381 |+371 |+637 |4351 |+002 |+0619 |4667 |+1207 |+435 |+624 |4+530 |4+590
July 4019 |—075 |+561 |+185 |+257 |+0246 |+531 |+0667 ||4+172 |4+425 |+299 |4298
August |—189 |—239 |+118 |-073 |—408 |4+0052 |+217 |+0070 |—096 |-017 |—056 |—185
September | —221 |—271 |-133 |—495 |—677 |—0171 |—472 |— 0364 |-280 |—421 |—350 |—492
October —083 |—356 |—384 |—205 |—544 |-1111 |+081 |—0631 |-257 |-551 |—404 |—671
November | ~163 +132 |—223 |+092 |+023 |-0572 |-245 |-0356 |—041 |~287 |-164 |—178
December | +094 +301 |+014 |+043 |+523 |+0371 |-389 |+0109 |+113 +153 /+133 |4+336
55. Annual Period of the Horizontal Component.—Table 24 has been formed in the same manner as Table 3 |
(see p. xiii.) The secular changes employed in the reduction for each year, obtained in the same manner as for”
the magnetic declination in 1847-8 (No. 8), are as follow :—
1842. 1843. 1844. 1845. 1846. 1847. 1848. 1849. e
2
Yearly increase, 0°003480 0:003804 0:002820 0:001116 0-001368 0-000768 0-001500 0-001920 —
s,
56. The mean result for the six years 1842 to 1847, given in the last column of Table 24, is probably to
be most depended on for an accurate exhibition of the mean annual law, the means for 1848 and 1849 being
deduced from too few observations. The mean for the six years 1842 to 1847 shews, that the horizo
component at Makerstoun was a maximum at the summer solstice, and also at the winter solstice ; that it was”
a minimum shortly after the autumnal, and shortly after the vernal equinox.* This result is shewn with
> 2
ve
# This law, as deduced from the Makerstoun Observations for 1842, was stated to the Physical Section of the British Associa’
in June 1845, confirmed by a rediscussion of observations made at Toronto in 1842: it has since been confirmed by the obseryati
made in the successive years at Makerstoun, and, as has been shewn in the Makerstoun Observations for 1844 (foot-note p. 357), by
ANNUAL VARIATIONS FOR THE HORIZONTAL COMPONENT. XXXIll
considerable distinctness in each of the six years ; the variations from it are not greater than might be expected
when we take into account the large effect of disturbances, the irregular value of the secular change in some
years, and in others the fewness of the daily observations, and consequent imperfect nature of the corrections.
These corrections, as deduced from the observations for 1844 and 1845, vary so much as to account fully for
many of the minor differences from the mean law in the years 1842 to 1847, and for even the larger differences
in the years 1848 and 1849. Upon the whole the summer maximum appears rather greater than the winter
maximum, and the autumnal minimum than the spring minimum ; although as thisis not the case in the mean
for the first four years (column 10, Table 24), and as very large disturbances occurred in the end of the years
1846 and 1847, which probably iiereased the autumn minimum of these years, this difference in the minima
i is perhaps accidental, and might be removed or considerably diminished in a larger series of observations.
57. When we compare the monthly means, as deduced from the 10 days selected in each month as least
af affected by irregular disturbances, with those deduced from all the hourly observations in the same months, we
find the latter less (—) or greater (+ ) than the former, by the following quantities :—
‘Year. Prefix. Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Noy. Dec.
1844, 0:000; —109 —346 —399 —315 —029 4018 —021 —108 —062 —507 —164 —234
1845, 0-000 | —301 —160 —260 —143 —032 +4021 +003 —119 —109 —251 ~—111 —377
Mean, 0-000 | —205 —253 —3829 —229 —030 +019 —009 —113 —085 —379 —137 —305
In each month, with the exception of June, the mean deduced from the undisturbed days is greater than
that deduced from all the observation days ; and the excess is ereatest in March and October, the months of
greatest disturbance : the effect of disturbance on the means for. the months of May, June, and J uly, is very
small, nearly zero.
58. As the above effects of disturbance seem to obey a law similar to that of the annual period of the
mean, it will be interesting to consider the law for the latter, as deduced from the nearly undisturbed 10 days
selected in each month of the years 1844 and 1845. The following are the mean variations, deduced from all
the daily observations in 1844 and 1845, as in Table 24.
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec. '
ean of all, 0-000 | +082 +044 —224 —280 +132 +494 +373 +022 —314 —294 —065 +028
:
Berrecting these by the mean quantities in No. 57, we obtain the variations of the monthly means from the
> undisturbed days of 1844 and 1845.
® } 0-000 | +116 +126 —066 —222 —009 4304 +211 —036 —400 —086 —099 +162
The monthly means, deduced from 10 nearly undisturbed days in each month of the two years, give the
ne law as has already been deduced from the means of all the observations (as in Table 24): in the undis-
bed means, the maximum at the winter solstice is rendered more marked, and it appears probable that the
erence between the values of the two maxima may be wholly a result of disturbance, which appears to
inish the winter means considerably, while it rather tends to increase those at midsummer. When a more
eful selection of undisturbed days is made, as in that of five days in each month of 1844, (see p. 365 of the
ume for that year) it is found, that the effect of disturbance in diminishing the winter means, and in increas-
i@ the summer means, is even more considerable than that found above No. 57.
_ Differences of the Daily Means of the Horizontal Component from the Means for the corresponding Months.—
The discussion for 1844, will be found in the volume for that year, page 357, the results for 1845 and 1846,
re obtained from Tables XVIII. and LVII. of this volume.
!
an 1ont’s observations at Munich (1843-5), although by the combinations which he had employed he had failed in detecting the fact.
following are the variations of the Munich numbers as corrected for secular change in the note cited, the horizontal component
he place being taken as unity.
‘Prefix.
0-000
r
Dec. Jan. Feb. Mar. Apr. May. June. July. Aug. Sept. Oct. Nov. Dee.
+172 -029 —086 —029 -158 4265 +4238 +4280 +4136 -—421 -—328 —045 4172
a
The value of this confirmation of the Makerstoun Jaw is increased by the fact, that the Munich instrument has a unifilar suspen-
| sion, and that the processes of observation, reduction, and correction, are completely different from those employed at Makerstoun.
XXXIV GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
TABLE 25.—Means of the Positive and Negative Departures of the Daily Means from the Monthly
Means of the Horizontal Component of Magnetic Force, with their Differences.
Mean Positive Departures. Mean Negative Departures. Mean Dep ee athont ae
Diff. of SS
Month. Mean | l
Depart.
1844. | 1845. | 1846. | Mean. || 1844. | 1845. | 1846. | Mean. 1844. | 1845. | 1846. || Mean.
Prefix. || 0-00 0:00 0-00 0-00 0-00 0:00 0:00 0-00 0-00 | 0-00 0-00 0-00 0-00
Jan. 0172 |. 0316 | 0159 | 0216 || 0215 | 0538 | 0171 | 0308 ||— 0092 | 0191 | 0398 | 0165 0251
Feb. 0317 | 0303 | 0284 | 0301 || 0404 | 0303 | 0171 | 0293 |+4+0008 | 0356 | 0303 | 0213 | 0291
Mar. 0445 | 0214 | 0299 | 0319 || 0712 | 0250 | 0299 | 0420 |—0101 | 0548 | 0231 | 0299 || 0359
April 0404 | 0285 | 0314 | 0334 || 0472 | 0641 | 0428 | 0514 | —0180 | 0436 | 0394 | 0362 || 0397
May 0355 | 0228 | 0346 | 0310 || 0330 | 0387 | 0403 | 0373 | —0063 | 0342 0287 | 0372 | 0334 |
June 0193 | 0177 | 0441 | 0270 || 0178 | 0225 | 0514 | 0306 | —0036 | 0185 | 0198 | 0475 | 0286 |
July 0217 | 0204 | 0314 | 0245 || 0271 | 0297 | 0393 | 0320 | —0075 || 0241 | 0242 | 0349 | 0277
Aug. 0353 | 0386 | 0393 | 0377 || 0380 | 0241 | 0288 | 0303 | +0074 | 0366 0297 | 0332 | 0332
Sept. 0248 | 0315 | 0463 | 0342 || 0316 | 0315 | 0540 | 0390 (cues 0278 | 0315 | 0499 | 0364
Oct. 0459 | 0285 | 0345 | 0363 || 0494 | 0307 | 0586 | 0462 /— 0099 | 0476 | 0296 | 0434 0402 |
Nov. 0280 | 0330 | 0496 | 0369 |) 0382 | 0357 | 0390 | 0376 | —0007 | 0323 | 0343 | 0437 Pe
Dec. 0258 | 0358 | 0311 | 0309 || 0413 | 0608 | 0335 | 0452 |-0143 | 0318 | 0451 | 0323 | 0364
= EE ET ET FS TT MEP FEET
59. The following are the conclusions from Table 25.
1st, The daily mean value of the horizontal component is both most in excess and most in defect of i
monthly mean value in April, and in the months from August to November; while the smallest departures
from the monthly means occur about the solstices.
2d, The average negative departure is greater than the average positive departure, in every month of the
year wath two exceptions, February and August, and the excess of ‘the former over the latter is greatest in Ap 1
and December. a
3d, As both the positive and negative departures obey nearly the same law, we in consequence find, as in
the last column of Table 25, that the greatest departures of the daily means from the monthly means occur
immediately after the equinoxes, and the least departures immediately after the solstices. We may generaliz
this result (as in the case of the magnetic declination, No. 11, 4th) thus :—The differences of the daily means o}
the horizontal component of magnetic force from the monthly means were a maximum when the horizon al
component was least, and a minimum when it was greatest.
TABLE 26.—Mean Diurnal Range of the Horizontal Component of Magnetic Force, as deduced from -
the Ordinary Daily Observations.
March,
Prefix. |] 0:00 0-00 0-00 0:00 0-00 0-00 0-00 0-00 0:00 0-00 0-00 0:00
1843 || 1396 | 1567 | 2333 | 4102 | 4119 | 3815 | 4846 | 4128 | 3268 | 2932 | 1682 | 1609
1844 || 1920 | 2750 | 4980 | 4990 | 4510 | 3710 | 4290 | 4600 | 4020 | 3690 | 3140 | 2510 || 3760
1845 || 4095 | 2672 | 3276 | 5695 | 4512 | 4010 | 4151 | 4597 | 4441 | 3164 | 2480 | 3565 || 3888
3520 j )
2926
4128
3527
ANNUAL VARIATIONS FOR THE HORIZONTAL COMPONENT OF MAGNETIC FORCE. xxxv
— 60. Annual Variation of the Diurnal Range of the Horizontal Component of Magnetic Force.—The means
_ for 1844 and 1845 only, in Table 26, are comparable with each other. From the last line of Table 26 we find
that the mean daily range was least in the months of December, January, and February, and less in May and
_ June than in April, July, and August. These mean ranges are deduced from the ordinary daily observations.
When we seek for the absolute ranges, as obtained from all the extra observations made in the years 1844 and
1845 (Table LX. 1844, p. 400, and Table L. p. 28 of this volume), we obtain the following numbers (prefix
0:00) :—
Jan. Feb. March, April. May. June. July. Aug. Sept. Oct. Noy. Dec.
1844, 2943 3811 6193 6234 5088 3802 4538 5319 4538 51384 6556 2965
1845, 5758 3009 4268 6138 4733 4054 4174 5270 5062 3759 2864 3995
Mean, 4355 3410 5230 6186 4910 3928 4356 5294 4800 4446 4710 3480
_ These numbers follow the same law as those in Table 26, they are, however, considerably larger; the in-
-erease is most marked in the winter months. From the means of both years we may conclude that the mean
_ yalue of the diurnal change of the horizontal component of magnetic force at Makerstoun in years of moderate
disturbance is about 0:0057 in April and August, and about 0:0038 at the solstices, the whole horizontal com-
- ponent being unity.
TABLE 27.—Ranges of the Mean Diurnal Variation of the Horizontal Component of Magnetic Force.
61. Annual Variation of the Ranges of the Monthly Mean Diurnal Variation —From the last line of Table
27, it appears that the range of the monthly mean diurnal variation is least in December, January, and February,
and that it is less in June than in May, July, or August. The following are the diurnal ranges of the monthly
_ mean diurnal variations, as deduced from the 20 days selected as free from irregular disturbance in the
years 1844 and 1845 :—
_ Prefix. Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
0:00 | 0547 0682 1833 3154 3279 3209 3417 3080 2988 2030. 1291 0875
62. When we examine the mean diurnal ranges as deduced from all the observations (extra and ordinary) made
in 1844 and 1845, we find that the means for “March and April, and for August and September, are greater
than the means for May, June, and July ; when we deduce the mean diurnal range from the regular daily
_ observations, as in Table 26, then we find only the mean for April greater than the means for May, June, and July,
the means for July and August being greater than those for May and June. So when we consider the range of
‘the monthly mean variation as in Table 27, we find the mean for June less than the means for May, July and
August only ; and, finally, in the ranges last given, deduced from the mean variations of undisturbed days, the
differences for the months from April to September almost altogether disappear, the excess for July being in
all probability accidental. This result is similar to that already found for the magnetic declination, and we may
draw from it a similar conclusion, that the excess of the diurnal range in the equinoctial months over that
for the midsummer months is due to irregular disturbance.
63. Annual Variation of the Mean Difference of a Single Observation of the Horizontal Component from the
— Monthly Mean at the corresponding Hour—The mean differences for 1844 and 1845 (from Table XXXIV.,
1844, p. 368, and Table XXX., p. 17, of this volume) are as follow (Prefix 0-000) :—
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec. | Mean.
350 5383 823 770 568 400 469 645 587 689 591 521 579
697 515 39477 650 503 421 Aal “oT 6L0r © 47s ma0l 699 547
523 524 650 710 535 410 458 611 598 581 546 610 563
MAG. AND MET. OBS. 1845 anv 1846. a
XXXV1 GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
The conclusion deduced from the numbers for 1844, and which has been deduced from those for the magnetic
declination, No. 16, is also to be obtained from the numbers for 1845, though with less distinctness, owing to
the large effect of disturbance in January and December of the latter year (See No. 16.) In the mean of both
years March and April shew the greatest mean difference in the first six months (and for the whole year), and
August and December the ereatest in the second six months: the least values are those for June and July, and
for January and February.
64, From this result, June and July appear the months best fitted for observations of the horizontal com-
ponent of magnetic force; the probable error of an observation from the mean for the corresponding hour in
these months being under 0-0003 of the whole horizontal force.
65. Annual Variation of the Number of Observations which were greater than the Monthly Means for the
corresponding Houwr.—The numbers of observations in 100 which were greater than the monthly means for
each month of the years 1844 and 1845 are as follow :—
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec. Mean.
1844, 53:1 548 60°71 52:1 525 45°77 47:1 4983 543 612 556 596 | 538
1845, 596 568 569 55°0 53:2 483 508 53:0 53:0 56:2 563 57:3 | 54-7
Mean, 56:3 55°38 585 535 52°83 47:0 489 514 536 587 559 584] 542
From these numbers it appears, that in the year there are, in 100 observations, upwards of 8 more in
excess than in defect of the monthly means for the corresponding hour; that June and July were the only
months which shewed more observations less than there were greater than the monthly means ; that in March,
October, and December, the number of observations in excess of the monthly means was greatest, being 17 in
100 more than those in defect. Upon the whole it appears probable in this, as in the other cases, that the
numbers for 1844 exhibit the mean annual Jaw with greatest truth, and that the number of positive observa-
tions is least at the summer solstice, and is greatest near the equinoxes.
MONTHLY VARIATIONS FOR THE HORIZONTAL COMPONENT.
TABLE 28.—Mean Variations of the Horizontal Component of Magnetic Force, free from Regular —
Secular Change, with reference to the Moon’s Age and Declination.
After
Moon’s | | Moon |,
Age. ; j | 46. | : farthest | 1843. 1844. 1845. 1846.
66. Variations of the Daily Mean Horizontal Component with reference to the Moon’s Age and Declination. —
—Table 28 has been formed from the detailed Tables in former volumes, and from the Tables pp. 11 and 32 of 2
this volume. From the means in Table 28 we conclude :—
lst, That the mean horizontal component is greatest about the time of conjunction, and least about oppo-
sition, or immediately before and after that epoch. This result is shewn with great distinctness in several single
lunations in 1844, (see volume for 1844, p. 358 and Plate XIV).
2d, That the mean horizontal component is a maximum, both when the moon is farthest north, and when
it is farthest south, and that it is a minimum when the moon is near the equator. This result is shewn with
considerable distinctness in the variations for both 1844 and 1845 and with some irregularity in 1843 and
1846; the less value of conclusions from the observations of the two latter years should always be borne in mind.
MontTHLY VARIATIONS FOR THE HORIZONTAL COMPONENT. XXXVI
TABLE 29.—Diurnal Range of the Horizontal Component of Magnetic Force, with reference to the
Moon’s Age and Declination.
After
Moon
farthest Mean.
North.
Variation of the Diurnal Range of the Horizontal Component with reference to the Moon’s Age and De-
clination.—Table 29 has been formed fromthe Tables in former volumes, and the Tables pages 12 and 33 of
this volume.
67. The conclusions from Table 29 are :—
1st, That the diurnal range of the horizontal component is greatest about the time of opposition, and
least about the time of conjunction; in the mean of the 4 years the range varies little from the time that the
moon is 6 days till it is 20 days old; it also varies little during the remaining half lunation, but the value for
the former is considerably greater than for the latter.
2d, In the mean of the 4 years the diurnal range is a maximum about 4 days after the moon has attained
its greatest north declination; it is a minimum when the moon is farthest north. The means for 1844 and
o for 1845 indicate a minimum, both when the moon was farthest north and when farthest south, with
maxima during the intermediate periods ; this result seems to deserve the greatest value, agreeing as it does
with the conclusion deducible from a comparison of the laws of mean values and ranges, namely, that the
range of the horizontal component is a maximum when its mean value is least, and wice versa,
TABLE 30.—Mean Difference of a Single Observation of the Horizontal Component of Magnetic
_ Force from the Monthly Mean, at the corresponding Hour, with reference to the Moon’s Age and
Declination.
After
Varia- Moon Varia-
1844, 1845. Mean. ae farthest 1844. 1845. Mean. ie.
North.
a. d._'|] 0-00 | 0-00 0-00 0-00" d. d._ |] 0-00 0-00 0-00 ‘|} 0:00
14—16 | 0668 0498 0583 ||+0018 | 27— 1 0533 0519 0526 ||—0036
17—20 | 0682 0591 0636 +0071 2— 5 || 0655 0643 0649 || +0087
21—24 | 0441 0578 0509 || —0056 6— 8 || 0588 0577 | 0582 ||+0020
25—28 || 0484 0539 0511 ||—0054 9—12 || 0510 0536 0523 ||—0039
29— 1 0539 0571 0555 |—0010 } 13—15 |, 0519 0484 0501 ||—0061
2— 5 | 0497 0568 0532 ||—0033 | 16—19 || 0560 | 0647 0603 ||+0041
6— 9 || 0605 0556 0580 | +0015 | 20—22 || 0570 | 0472 0521 ||—0041
+0047 | 23—26 | 0675 0507 0591 |}/+0029
68. Variation of the Mean Difference of a Single Observation from the Monthly Mean for the corresponding
our with reference to the Moon’s Age and Declination.—The results for two years 1844 and 1845 from Table
KXV., 1844, p. 369, and Table XXIX., p. 16 of this volume, are given in Table 30. The conclusions from
Table, which are nearly the same as those from Table 29, are as follow :—
_____ Ist, The departure of the horizontal component from its monthly mean value for the corresponding hour,
IS greatest about the time of opposition, and least about the time of conjunction ; the actual epochs are imme-
XXXV1ll GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
diately before and after those stated, a secondary minimum occurring at conjunction, and a secondary maximum
at opposition ; but these secondary points are probably accidental.
2d, The departure of the horizontal component from its monthly mean Position for the corresponding hour
is least when the moon is farthest south and also when farthest north; maxima occurring at the intermediate
periods (see No. 16).
DIURNAL VARIATIONS FOR THE HORIZONTAL COMPONENT OF MAGNETIC FORCE.
Diurnal Variation of the Horizontal Component.—The discussions for 1843 and 1844 will be found in
the volumes for these years, the Tables for 1845 and 1846 are given in this volume, pages 13 and 34. Table
31 has been formed from all the ordinary daily observations made in the 4 years, in the manner already de-
scribed for the declination (Nos. 26, 27.)
12 12 |) 0456 | 0358 | 1576 | 1746 | 1816 | 2191 | 2346 | 2476 | 1751 | 1672 | 0843 | 0098
13 12 || 0404 | 0202 | 0995 | 1758 | 1743 | 1991 | 2158 | 2182 | 1875 | 1694 | 0884 | 0221
14 12 || 0000 | 0077 | 0893 | 1158 | 1630 | 1856 | 2012 | 2023 | 1592 | 1648 | 0855 | 0227
15 12 || 0630 | 0129 | 1285 | 1572 | 1557 | 1770 | 1918 | 2031 | 1770 | 1918 | 1039 | 0327
16 12 |) 0855 | 0252 | 1271 | 1651 | 1476 | 1655 | 1745 | 2029 | 1816 | 1945 | 1162 | 0607
17 12 || 1062 | 0521 | 1329 | 1890 | 1521 | 1480 | 1574 | 1745 | 1978 | 1842 | 1227 | 0791
18 12 || 1054 | 0614 | 1575 | 1805 | 1421 | 1151 | 1435 | 1584 | 1708 | 1654 | 1330 | 0897
19 12 |) 1022 | 0641 | 1275 | 1521 | 1008 | 0831 | 1080 | 1027 | 1047 | 1419 | 1125 | 0764
20 12 || 0769 | 0519 | 0709 | 0757 | 0420 | 0329 | 0560 | 0316 | 0550 | 0752 | 0740 | 0573
21 12 || 0616 | 0105 | 0308 | 0145 | 0119 | 0004 | 0094 | 0000 | 0023 | 0180 | 0183 | 0278
22 12 || 0348 | 0000 | 0000 | 0000 | 0000 | 0000 | 0000 | 0140 | 0000 | 0000 | 0000 | 0001
23 12 || 0444 | 0042 | 0208 | 0132 | 0414 | 0518 | 0502 | 0718 | 0531 | 0284 | 0104 | 0000
:
%
TABLE 31.—Diurnal Variations of the Horizontal Component of Magnetic Force for each Month, as -
t
deduced from the Regular Daily Observations made during the Four Years 1843 to 1846. H
Mak. j
Mean Jan. | Feb. | March.| April. | May. | June. | July. | Aug. | Sept. Oct. Noy. Dec. 4
Time :
hh. ™. 0-00 0-00 0°00 0-00 0-00 0-00 0-00 0-00 0-00 oe? o 0-00 “0-00 :
4
e
|
4
}
0 12 || 0556 | 0268 | 0632 | 0782 | 1102 | 1284 | 1249 | 1417 | 1268 | 0753 | 0566 | 0097
1 12 | 0932 | 0535 | 1324 | 1557 | 1978 | 1949 | 1915 | 2380 | 2082 | 1484 | 0835 | 0332
2 12 || 1027 | 0784 | 1756 | 2201 | 2530 | 2549 | 2764 | 2781 | 2524 | 1744 | 1028 | 0521
3 12 || 1007 | 0840 | 2071 | 2691 | 2947 | 2891 | 3444 | 3349 | 2860 | 2122 | 1131 | 0604
4 12 | 1057 | 0726 | 2185 | 3003 | 3722 | 3185 | 3753 | 3558 | 3100 | 2078 | 1027 | 0668
5 12 || 0995 | 0658 | 2132 | 3456 | 3969 | 3487 | 4049 | 3997 | 2982 | 2109 | 1431 | 0648
6 12 || 0868 | 0658 | 1958 | 3482 | 3875 | 3685 | 4148 | 3888 | 2827 | 2169 | 1428 | 0888
7 12 || 0819 | 0729 | 2049 | 3026 | 3825 | 3667 | 3847 | 3740 | 2780 | 2059 | 1139 | 0670
8 12 | 0933 | 0714 | 1966 | 2706 | 3177 | 3297 | 3459 | 3402 | 2352 | 2034 | 1111 | 0366
9 12 || 0830 | 0586 | 1769 | 2386 | 2574 | 2933 | 2957 | 3010 | 2314 | 1961 | 0866 | 0249
10 12 || 0623 | 0212 | 1575 | 2484 | 2308 mage 2654 | 2939 | 2123 | 1875 | 0878 | 0200
11 12 || 0598 | 0264 | 1808 | 2197 | 2004 | 2344 | 2543 | 2625 | 2123 | 1715 | 0776 | 0241
69. The following are the approximate epochs of maxima and minima in apparent time, as deduced from the —
numbers in Table 31; the principal maximum is distinguished by +, the principal minimum by —
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
h. m. h. m. h. m. bom bh m bh. m. hom 4h. m. h. m. h. m. h. m. h. mL.
Min. 2210 —2215 —2215 —2215 22 0 2150 2140 21 25 -—21 50 -2210 -—22 40 —2289
Max. +40 4245 4415 +545 515 645 550 510 +420 +5 +60 4615
Min. —-14 0 —-14 0 14 0 LAO) aioe ce -tre meee or sibs ano 14 0 13 0 1l 0 —12°0)
Max. +18 0 18 45 18 0 WP Geom) enon = Sosene | | comeoe 17 15 16 0 +18 30 +18
a
The diurnal variation of the horizontal component, at Makerstoun, consists of one maximum and one
minimum in the four months May till August, and of two maxima and two minima in the eight months
September till April; in each of the four months November till February, the two maxima have nearly equ
values, and in each of the last three of these, the two minima are also nearly equal; from March till Apn
—_—
DIURNAL VARIATIONS FOR THE HoRIZONTAL COMPONENT. XXX1x
and from October to September, the morning maximum becomes smaller in comparison with the afternoon
maximum ; and in May and August there are traces of the former which wholly disappear in June and July.
The forenoon minimum occurs earliest in August, and before 10" a.m. in the four months from June till Sep-
tember ; it occurs latest in November and December, and after 10h a.m. in the seven months October till
April: the afternoon maximum occurs earliest for the first six months of the year, in February, and for the
last six months, in September ; it occurs latest in June and December. In order to destroy the smaller ir-
regularities, means for groups of months have been taken; the same groups have been used as those already
adopted for the magnetic declination (No. 31).
TABLE 32.—Diurnal Variations of the Horizontal Component of Magnetic Force for Different Periods,
deduced from Table 31.
Six Months.
March. May. : Twelve
April. June. : E p Months.
KH OOMDNRDULRWNHH OS
—
70. The following are the approximate epochs of maxima and minima in apparent time from Table 32.
(See also Plate IT.)
Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov.
108 20™am. 102 10™am. 105 Om a4.m. 9h 35™ 4M. 108 Om 4M.
4h Om p.m. 55 15™ p.m. 65 20™ p.m. 5h 45™ p.m. 5h 50™ p.m,
Qh 0™ aM. Cisse tie ak OS ROR eet RL ian se Seer Qh Om aM.
6h 10™ a.m. DA ANAC aga any ect. Sey A WEA At seamyeeaiars 5h 30™ a.m,
rom these means of groups, the forenoon minimum occurs earliest in July and August, and latest in
Jecember to February ; the afternoon maximum occurs earliest in December to February, and latest in May
and June; the morning maximum occurs earliest in September to November, and latest in the three months
thereafter ; the after-midnight minimum appears to occur generally about 2" a.m.
__ The previous conclusions are obtained from the means of all the daily observations ; the following Table
contains means for the same groups of months, deduced from the 10 days selected in each month of 1844 as
' free from intermittent disturbance, and the 10 days similarly selected for each month of 1845. See Table
XXVIIL., p. 362, 1844, and Table XXV., p. 14, of this volume.
MAG. AND MET. OBS, 1845 anv 1846. k
&
xl GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
TABLE 33.—Diurnal Variations of the Horizontal Component of Magnetic Force for Different
Periods, deduced from Days selected as free from Irregular Disturbances, in the Years 1844
and 1845.
Six Months.
| Twelve
Sept.to | March Months.
Feb. to Aug.
0-00 0-00 0-00
+0046 | +0271 | +0159
-—0018 | +0149 | +0065
—0010 | +0038 | +0014
+0057 | —0032 | +0012
+0139 | —0063 | +0037
+0227 | —0132 | +0047
+0178 | —0332 | —0076
+0036 | —0663 || —0313
—0338 | —1188 | —0763
—0679 | —1620 || —1149
—0907 | —1791 || —1349
—0764 | —1479 | —1122
—0478 | —0908 | —0693
—0056 | —0246 | —0152
+0136 | +0241 | +0188
+0209 | +0672 | +0440
+0291 | +0783 | +0536
+0360 | +1049 | +0705
+0409 | +1149 | +0779
+0346 | +1176 | +0761
+0285 | +0990 | +0637
+0217 | +0786 | +0501
+0185 | +0651 | +0418
+0130 | +0501 | +0315
KP OOCODANADAORWNF ©
—
71. The following are the approximate epochs in apparent time deduced from Table 33. (See also the
dotted curves, Plate II.)
Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov. —
Minimum, 105 45™ 4m. 10% 25m a.m. 9» 55™ a.m. 9» 50™ a.m. 105 10™ a.m.
Maximum, 5h 30™ p.m. 7> Om p.m. 6» 30™ p.m. 6> 55™ p.m. 6 35™ p.m.
Minimum, 1» 30™ a.m. Se 20a Me fee: eee oeeee 1® 55™ a.m,
Maximum, 6> 35™ a.m. Sigs CM es ees Ea, PI a PSS o>. 55 30™ a.m.
A comparison of these epochs with those deduced from Table 32 will shew, that the effect of disturbance is
to accelerate the epochs of the forenoon minimum and afternoon maximum, those of the latter being most
affected. In the undisturbed diurnal variation the afternoon maximum occurs latest in March and April, and
in July and August.
72. Diurnal Variation of the Effect of Disturbance on the Horizontal Component.—The following result is
obtained upon the assumption, that intermittent disturbance which affects the hourly mean position does not
affect the monthly mean of the 24 hours; or, that the differences found No. 57, between the monthly means of
the undisturbed days, and of all the days, is due to continuous and regular laws, which have little effect on the
relative hourly positions ; it appears very probable from No. 58, that this assumption is not quite accurate, but
that the negative quantities in the following Table are too small, and the positive ones too large; those
for the summer months, however, must be near the truth, as disturbance had little or no effect on the mean for
that group: the error in the values for the other periods cannot affect the epochs of positive and negative
maxima. ”
vies
DIURNAL VARIATIONS FOR THE HORIZONTAL COMPONENT. xhi
TABLE 34.—Differences of Disturbed and Undisturbed Diurnal Variations of the Horizontal Com-
ponent of Magnetic Force, as deduced from Tables 32 and 383, exhibiting the effect of Irregular
Disturbance on the Hourly Mean Positions.
Six Months.
March Twelve
to
Aug.
Months.
0:00
| Oily t
J | | ! — 0270
: | — 0368
y | a2 | — 0205
— 0224
' — 0204 |
: — 0098
| 01129
“ — 0222
g | —0194
i | = (vital
— 0031
+ 0264
+0302
SKODODONODUOKR WN ©
—
73. The conclusions from Table 34 are,—
1st, That the greatest effect of disturbance in increasing the horizontal component occurs
In Dec. Jan. Feb, March, April. May, June. July, Aug. Sept. Oct. Nov.
About 35 20m p.m. and 6" a.m. 4h 40™ pM. 5} Om p.m. 52 15™ p.m. 35 40™ p.m.
In the months December to February there are two maxima of the positive effect of disturbance, the second
‘Maximum occurring about 6" a.m.; this is also shewn, though less distinctly, in the quantities for March and
April. The greatest positive effect of disturbance occurs latest in July and August, and earliest in the months
from September to February ; occurring throughout the year betwixt 35 p.m. and 5" p.m.
_ 2d, That the greatest effect of disturbance in diminishing the horizontal component occurs
j In Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov.
4 About 1" a.m. , 2) aM. 2h 30™ a.m. 5h 40™ a.m. 11 pM.
A secondary negative maximum occurs in December to February, about 9" 30™ a.m., and in March and April
about 8" 30™ a.m. The greatest negative effect of disturbance on the hourly mean position, occurs earliest in
the months September to November, namely about 111 p.m., it occurs farther and farther after that hour in
the months following, till July and August, when it occurs about 5% 40™ a.m.
__ 3d, From what has been said, No. 72, the hours when the effect of disturbance is zero must be less certain,
they are from Table 34.
an Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov.
About 4° 4.m. 10° a.m. 8" p.m. 10b4m. 8pm. 1135 a.m. 84> p.m. O27 pw. 832 Pm. 117 am. 7" pM.
xl GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
The hours for the months December to February are very uncertain, owing to the irregularity and smallness
of the variations. Throughout the year the effect of disturbance is zero about 11 a.m. and about 8» p.m.
Diurnal Variation of frequency of the Positive Departures from the Hourly Mean Positions.—The number
of observations having been obtained for each month in 1844 and 1845, which shewed a greater value of the —
horizontal component than the monthly means at the corresponding hours, the means of quarterly groups were —
formed, and the numbers per cent. are given in the following Table.
TABLE 35.—Numbers of Observations of the Horizontal Component of Magnetic Force in 100, which —
were greater than the Monthly Mean at the corresponding Hour in the Years 1844 and 1845, i
for each Quarter, and for the Year. :
KH OODTHAUNARWNH SO’
— as
74. The following are the approximate epochs of maximum and minimum frequency of positive departures, —
as deduced from Table 35.
Nov. Dec. Jan. Feb. March, April. May, June, July. Aug. Sept. Oct. Year.
Maximum, 15 a.m. Qh aM. 45 aM. 115 p.m. to 115 a.m. 2) aM.
Minimum, 7> a.m. and 1 p.m. 3) P.M. 8" p.m. 40 p.m. 3) P.M.
a
The numbers in Table 35 present considerable irregularities; two years’ observations appear too few to
remove these. In the winter and spring quarters, there is a secondary maximum of frequency of positive de-—
partures about 91 a.m., a secondary 'y minimum occurring in the winter quarter about noon, and in the spring
quarter about 6" a.m. The variation of the numbers is greatest in the spring and autumn quarters, it is least |
in summer. Every hour in winter, with one exception, had more observations greater than the montbly mean
for the hour, than there were less ; in spring and autumn, all the hours had a greater number of positive than
of negative departures, excepting those from 1" to 5 p.m. The minimum of positive frequency occurs
about 75 a.m. in winter, but in summer it occurs nearer 7" p.m. The hours of maximum frequency of the —
positive departures, are obviously those of minimum frequency of negative departures. .
75. It may be remarked here, that these departures are from the mean position of all the ordinary observa-
tions. which mean position is more or less affected by disturbance ; could the undisturbed mean position be well —
ascertained it would probably be found, as it has been in the case of the declination, No. 41, that the hour of
maximum frequency of the positive departures from the disturbed mean position, is nearly that of their mini-
mum frequency from the undisturbed mean position ; this, it will be seen, was the case when the selected days”
were assumed as the normal means, as in 1844. (See volume for 1844, page 372). ‘
76. Diurnal Variation of the Mean Differences of the Values of the Horizontal Component from the Monthly
Mean Values for the corresponding Hours.—Table 36 has been formed in the manner already indicated, No.
43, for Table 18. The numbers in Table 36 exhibit such considerable irregularities, that it is difficult in some
cases to determine real secondary points of maximum and minimum from those which may be merely accidental,
and which might have disappeared in the combination of a larger series of observations ; the following how=
ever, are the approximate epochs as nearly as they can be determined.
DIURNAL VARIATIONS FOR THE HORIZONTAL COMPONENT.
xii
TABLE 86.—Mean Difference of the Observations of the Horizontal Component of Magnetic Force,
ont
ee
KH COOOAONAUNARWNHHK OO
Se a
Mean Positive Difference.
Feb.
Mar.
April.
0-00
0650
0702
0807
0567
0536
0583
0403
0451
0475
0529
0503
0506
0529
0492
0528
0692
0632
0611
0552
0482
0527
0615
0591
0558
May.
June,
July.
0-00
0425
0413
0385
0463
0410
0369
0414
0472
0506
0429
0510
0555
0544
0529
0592
0620
0592
0472
0512
0480
0433
0426
0411
0400
Year.
0:00
0531
0522
0589
0591
0606
0536
0592
0530
0521
0553
0505
0508
from all the Regular Observations.
Mean Negative Difference.
Mean Difference.
in 1844 and 1845, from the Monthly Means, at the corresponding Hour in each Year, as deduced
Nov.
Dec.
Jan.
0:00
| 0863
| 0704
1103
10618
| 0489
| 0537
0424
0437
0460
0601
0629
0593
0567
0507
10526
0500
0756
0660
0733
0881
0708
0838
1004
10821
Feb.
Mar.
April.
0-00
0956
1276
1840
0868
0755
0875
0454
0598
0684
0845
0740
0671
0573
0463
0450
0443
0528
0599
0598
0492
0684
0849
0905
0914
May.
June,
July.
0:00
0417
0421
0385
0675
0532
0442
0439
0445
0477
0456
0541
0512
0555
0562
0505
0561
0462
0511
0512
0425
0320
0356
0387
0442
Aug.
Sept.
Oct.
0:00
0790
0638
0727
0539
0491
0812
0708
0684
0820
0700
0873
0749
0637
0550
0684
0591
0606
0484
0485
0607
0673
0707
0670
0771
Year.
Feb.
Mar.
April.
0462
0420
0420
0442
0535
0547
0540
0539
0482
0468
0445
0552
0561
0762
0714
0630
0704
0703
0665
0-00
0774
0906
1141
0686
0627
0665
0427
0514
0561
0651
0599
0577
0550
0477
0486
0540
0575
0605
0574
0487
0595
0713
0715
0658
May.
June,
July.
0-00
0421
0417
0385
0468
0463
0402
0426
0458
0491
0442
0525
0533
0549
0545
0545
0589
0545
0491
0512
0451
0368
0388
0399
0420
Aug.
Sept.
Oct.
0:00
0640
0568
0596
0469
0462
0609
0609
0595
0697
0630
0672
0637
0612
0578
0643
0651
0703
0532
0470
0571
0599
0608
0549
0617
Year.
000
0616
0606
0718
0526
0497
0535
0470
0497
0547
0564
0585
0571
0563
0521
0535
0556
0594
0547
0580
0556
0547
0603
0591
0589
Ist, The average positive difference of an observation of the horizontal component has its maximum and
Minimum values at the following hours in the means of the four quarters, the times of the principle values being
distinguished by + and —
’ Nov. Dec. Jan. Feb. March, April. May, June, July. Aug. Sept. Oct. Year.
Minimum, — 6° Am = A.M. — 27 aM. — 35 am —5> aM.
Maximum, 113° a.m. 33> P.M. +3" Pm. +4 p.m. +43) pw.
- Minimun, = 3 pay, 72 pM. satbslea ea aire Oe Nee cea ti Bee Lata
- Maximum, + 63) p.m. 4 OB aM
A maximum occurs in each quarter between 3" p.m. and 6" p.m., and the minimum occurs in each quarter
between 2" a.m. and 6" a.m.; there are, however, several points of opposition: thus, the principal minimum
‘im summer and autumn occurs at the hour of the principal maximum in spring; and one of the two equally-
marked minima of winter occurs at the same hour as the principal maximum in summer and autumn, and as
the well-marked secondary maximum in spring.
2d, The average negative difference has the following epochs of maxima and minima.
Feb. March, April.
Nov. Dec. Jan. May, June, July. Aug. Sept. Oct. Year.
Maximum, +113" p.m. +27 a.m. +3h aM. +1145 p.m. + 2P aM.
| Minimum, — 645 am. 62 a.m. 72 AM. — 33> am. — 65am.
_ Maximum, 10° a.m. 9 aM. +12 pM. +105 am. 102 a.m.
Minimum, 2h Bent — 2 P.M. — 83 p.m. — 53° pM. — 22 pm.
A principal maximum occurs in each quarter betwixt 11) p.m. and 3" a.m.; a secondary or principal maximum
’ occurs betwixt 99 a.m. and 14 p.m. The least values of the negative mean difference occurs about the same
hours in summer as the greatest values occur in winter, namely, between 8" p.m. and midnight.
MAG. AND Met. ogs. 1845 anv 1846, l
xliv GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
3d, The mean difference, independent of sign, has the following epochs of maximum and minimum.
, Nov. Dee. Jan. Feb. March, April. May, June, July. Aug. Sept. Oct.
Maximum, +8" pm. +22 a.m. +2) pM. 11° p.m.
Minimum, — 625 a.m. —6 a.m. to 6 p.m. —9" p.m. 33> aM.
Maximum, 105 a.m. BROS IOAG DC ApOeas es .ore Jaa potas hate 10h AM.
Minimum, 38> Pim. ose) stale de nieioieiehelsietatanatate ise Ganon sa0 cot 65 pw.
77. The opposition in the epochs of maximum and minimum is even more considerable for the mean dif-
_ ference than for its positive and negative elements. We find, as has already been found for the magnetic
declination, No. 45, that the diurnal law of disturbance of the horizontal component varies with season, and
that the law for summer is nearly the reverse of that for winter. In summer, the minimum disturbance occurs
about 8" p.m., which is the hour of the maximum disturbance in winter; in summer, the maximum disturbance
occurs about 3" p.m., which is the hour of a minimum in winter, which differs little in value from the prinei
minimum; the law for autumn also differs considerably from that for spring, the least values of the disturbance
occur in the latter between 6" a.m and 6" p.m., while the greatest values occur in the former between 8" 4m,
and 4" p.m.
78. Probable Error of Observations of the Horizontal Component.—At Makerstoun, in years of moderate
disturbance, the probable error of an observation of the horizontal component from the monthly mean for the
hour of observation has its least values as follow :—
Winter, between 4 a.m. and 4" p.m., the probable error being less than 0-0004 of the whole component.
SPEUMIG, we suiescn as GRAM: wor GBM Cs tadese ghee (ERE ene al seca. « 0-0005. 2.....<...5: eae oe
Summer,’ .....se. Sheets 3 BP wom Le nvcs Oe be. See eee «-- (0°0008. 5 462.000
Acatarom,) 3?! and 43 acm amdiG? Pay 2.5.60 Be. ee Oe veeeee.- 0:0004: 545. eae8 PAG
Variation of the Horizontal Component with reference to the Moon’s Hour-Angle.—The following Table
has been formed from Table XXXI., 1844, p. 391, and Table XXVI., p. 15, of the present volume.
TABLE 37.—Variations of the Horizontal Component of Magnetic Force with reference to the Moon’s
Hour-Angle for the Winter and Summer Lunations, and for all the Lunations of the Years 1844
and 1845.
Moon’s Winter Lunations. Summer Lunations. All the Lunations.
1844, . Mean. 1844, 1845. Mean. 1844. 1845, | Mean.
0-00 ; | 0-00 0-00 0-00 0-00 0-00 0-00 || 0-00
— 0066 || —0042 | +0029 | +0050 | +0039 | —0019 |; +0014 | —0002
— 0132 0000 | +0021 | +0163 | +0091 | —0056 | +0147 | +0045
— 0059 | —0083 | +0018 | +0081 | +0049 | —0021 | —0019 | —0020
— 0046 | —0046 | —0028 | —0004 || —0016 | —0037 | —0026 || —0031
+ 0004 | —0054 | —0060 | —0182 || —0121 | —0028 | —0143 || —0085
— 0036 | —0028 | —0012 | +0029 || +0008 | —0023 | +0003 | —0010
+0122 || +0075 +0102 || +0093 | +0104 | +0063 | +0083
+0099 + 0086 +0092 || +0124 | +0128 | +0083 || +0108
— 0001 +0061 —0039 || —0005 | +0014 | +0049 | +0031
+0093 +0070 é —0102 | —0078 | +0014 | —002] — 0003
+ 0065 +0020 —0130 || —0128 | —0031 | —0073 || —0052
— 0028 — 0054 —0055 || —0056 | —0044 | —0068 || —0056
79. The following are the conclusions from Table 37.
There are four independent results in this Table, two for the winter lunations of 1844 and 1845, and two
for the summer lunations of the same years; the other columns are derived from these: of the four results
three give the same law so nearly, that the result for the two years may be derived from either with but hittle
error in epochs; that result from the last column of the Table is as follows :—
A maximum of the horizontal component about 14 hours after the inferior transit.
A. THM INAS ceases ovis eh tee Re teerah ah eee Toe 3 hours before the superior transit.
JA. ARGU pn rete Geos oe GEESE Pers 2 hours after the superior transit.
Ad pga tf ,2 taro Se ag see cee etme come 8 hours after the superior transit.
a
VERTICAL COMPONENT OF MAGNETIC FORCE. xlv
80. The result for the winter lunations of 1844 agrees with this, in shewing a maximum immediately after
the inferior transit ; but differs from it in having the minimum about the hour of the second maximum for the
other periods ; this difference, it is conceived, is chiefly the effect of disturbances, as has been found when the
arger disturbances were eliminated. (See the volume for 1844, p. 365.)
VERTICAL COMPONENT OF MAGNETIC FORCE.
81. Observations for the absolute value of the vertical component were made in 1846 in the manner
described in the Introduction to the Observations for 1844, p. liti. (foot-note), but they have not been reduced ;
indeed, it is doubtful whether the dimensions of the magnets employed, and the errors of the instrument were
likely to admit a sufficiently accurate result. We may deduce the absolute value of the vertical component
from the observations for the horizontal component and magnetic dip; assuming the latter =71° 15’ for the
year 1845, we find the mean value of the former from the observations with the large deflecting bar (last
column of Table 21) for the year 1845 =3:'3837 ;—whence the absolute value of the vertical component of
magnetic force for 1845 =9:9680. The following results are deduced wholly from the observations of the
balance magnetometer : the variations are given in parts of the whole vertical component assumed equal to unity.
TABLE 38.—Monthly Means of the Variations of the Vertical Component of Magnetic Force at
Makerstoun.
' January -012155 | -009905 | -007838 | 005904} -003917| -002523 |[- -001157
February _| -011988| -009708| -007458) -005616| -003737 | -002636| -001004
; March -011495 | -009325 | -007341 | -005475| -003663| -002659| - 000747
April -011446 | -008992| -007384| -005361| -003526) -002668 | - -000537
May -011323 | -008804 | -007062 | -005192| -003603)| -002599| - -000472
I aE
June -011167 | -008878 | -.006847 | -005034| -003936| -002488 | - -000467
July -010883 | 008732 | -006552 | -004740| -003839| -002415| - -000314
August -010797 | -008562| -006341 | -004643 | -003678| -002184| - -000079
September -010672| -008158)| -006267 | -004534 | -003584| -002141| - -000129
October -010471 | -008138)| -006129| -004310)| -003206| -002299| - -000127
November -010355 | -008109 | -006155 | -004307 | -002899| -002344| - 31 | -000109
December -010129| -007992| -006003 | -004315 | -002643 | -002168) -001346| -000017
_ __ 82. Table 38 contains the monthly means of the balance magnetometer readings, as deduced from the regular
daily observations ; these in 1848 and 1849 were only two daily. From 1842 to 1847 the balance needle
0 eupied a position at right angles to the magnetic meridian ; in 1848 and 1849 its position was in the mag-
netic meridian. The monthly means diminish with a few exceptions from month to month throughout the
whole period. The yearly means of the variations and secular changes are given in Table 39.
TABLE 39.—Yearly Means of the Variations of the Vertical Component of Magnetic Force,
with the Secular Change.
Mean of Secular Change.
Variations
of Vertical
Component. Year to Year.
Mean of Hach | During Hach
Four Years. Year.
0-011073 0-002327
-008774 0:002299 2108
-006731 1993 1966
004953 1828 1733
003519 1434 0-001888 1151
002427 1092 ' 1587 1077
-001357 1070 1356 0867
-000430 0927 1131 1125"
xlvi GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
83. The numbers in the last column of Table 39 have been obtained by comparing the mean of the first six
months of the year, for which the secular change is sought, with that for the corresponding six months of the
following year, and the mean for the last six months.with the corresponding months of the preceding year ; the
mean of the two is taken for the secular change during the year : only one comparison could be made for 1842
and for 1849.
84, The vertical component has diminished from year to year ; the value of the secular change has also
diminished since 1842; the greatest diminution occurring in the year 1846, after which year the value of the
secular change has not varied greatly : it was least in 1848, and appears as large in 1849 as in 1846. It is
probable that the apparent secular change is partially, if not wholly, due to loss of magnetism in the needle,
especially in the first four years. (See the Section Magnetic Dip.) H
85. When we deduce the yearly value of the vertical component of magnetic force from the days selected as _
nearly free from irregular disturbance in 1844 and 1845 (see volume for 1844, p. 384, and Table XXXVIL.,
p- 21, of this volume), and compare these values with those obtained from all the ordinary observations in
each year, we find, that the yearly mean of the vertical component deduced from the nearly undisturbed days
In 1844 is greater than that deduced from all the hourly observations of the year, by 0-000021
WD TB LOY oc jae atom neisrailer-eaieen’s caine oivels' ole soy,s scleplela seas eRe ee cols. sores s+ 5. 310 ee 0-000039
The effect of disturbance in both years was to diminish the mean value of the vertical component on the
average by 0:000030. See Nos. 38 and 54.
86. Annual Period of the Vertical Component.—In the discussion of the observations for 1844 it was found
that the result for the annual period differed considerably from that obtained for the previous year ; separate
discussions of the observations for the different years shewed so many differences, that it was concluded that
the instrument was incapable of exhibiting the law, if any such existed; this conclusion was quite in accordance
with that previously made by those who had examined the instrument with the greatest care. A combination —
of the results for several years, however, has rendered it probable that the errors of the instrument or irregu- —
larities in the law have been eliminated to a considerable extent, and that the true law has been obtained ; this —
will appear from the following discussion. i
TABLE 40.—Monthly Variations of the Vertical Component of Magnetic Force, free from Regular
Secular Change.
Jan. | Feb. | March. April.
0-000 | 0-000 0-000 0-000
+086 —030 |—064 |—054
—014 |+027 |—071 |-—097
+036 |—001 |—068 |—075
—007 -—046 |—099 |—052
Table 40 has been formed in the following manner: The monthly means for the different groups of —
years having been obtained from Table 38, the means for each group were corrected for secular change in the
manner described No. 8, the secular change employed being the mean for the respective years in the last
column of Table 39 ; the numbers in Table 40 are the variations about the yearly mean for each corrected group.
87. The four years 1843-6 are those best fitted for exhibiting the annual law, the diurnal series of observa-
tions being sufficiently large to give the monthly mean without any considerable error. The result from this
group is as follows: The vertical component is a maximum in June and January, and it is a minimum im
April and October. The remaining four years, especially the years 1848 and 1849, though but indifferently fitted
to exhibit a law liable to so many irregularities, (owing to the fewness of the observations made daily, and to
the great magnetic disturbances in the last two years,) yet they exhibit a rough approximation to the same
result : for this group, the vertical component is a maximum in November and December, a secondary maxi-
mum occurring in July; andit is a minimum in May and September. The group of six years, 1842-7, includes
all the years during which a sufficient number of daily observations were made to give moderate approximations
to the monthly means, and this group indicates a law similar to that from the four years 1843-6. Neglecting
at present the considerations in favour of the law obtained from the four best years, the chief source of doubt as
to the value of the result, is to be found in the irregularity and great variation of the secular change to be elimi-
nated. In order to examine the monthly means free from this objection the following Table has been formed
j ANNUAL VARIATIONS FOR THE VERTICAL COMPONENT OF MAGNETIC ForRcE. xlvii
i
4 TABLE 41.—Mean Change of the Value of the Vertical Component from Month to Month for
different Groups of Years, as deduced from Table 38.
Jan. | Feb. | March.| April.| May. | June. | July. | Aug. | Sept. | Oct. | Nov. | Dec.
1 Prefix. || 0-000 0-000 0-000 | (0-000 0-000 0000 - | 0-000 0-000 | 0-000 0-000 0-000 0-000 0-000
| | 1843-6 ||— 219 |—261 |—178 |—135 |—150 |+008 |—208 |—160 |—170 |—190 |—078 |-—129 ||—156
| 5 | 1842-9 ||— 205 |—166 |—194 |—137 |—144 |—048 |—090 |—194 |—161 |—019 |—049 |—128 ||—128
j 1842-7 ||—-194 |—183 |—197 |—097 |—132 |—039 |—196 |—159 |—141 |—134 |—064 |—153 |-141
i. 88. Considering the numbers for the years 1843-6, we find that the mean change of the vertical component
‘from one month to the next=0-000156, that the diminution in the months from December to March and from
_ June to October was greater than the mean, while those from March to June and from October to December
were less ; the other groups give nearly the same result, which is quite in accordance with that from Table 40.
_ From both Tables we feel entitled to state the following as the annual law,—That the vertical component of
Beagnetic force is a maximum near the solstices and a minimum near the equinoxes. It will be observed that
this is precisely the law already deduced for the horizontal component No. 56 ; had it not been for this remark-
om coincidence in a law with two maxima and two minima, obtained from two instruments of the most different
principles, the conclusions deduced from the observations of the balance magnet would have been left with
_ whatever weight they might appear to physicists to deserve ; but it is conceived that the agreement is too con-
‘siderable and too remarkable to omit adducing it as evidence in estimating the accuracy of this result for
the vertical component.
89. If we compare the monthly means deduced from the days selected in each month as nearly free from in-
termittent disturbance, with those deduced from all the hourly observations in the corresponding months, we
d the latter less (—) or greater (+) by the following quantities.
re Prefix. | Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
91844, 0-000 | —039 +096 —124 +003 —071 —031 —031 —020 —048 —043 +006 +051
1845, 0-000 | —068 —036 —039 —086 —061 4018 —049 —091 —049 —046 +008 +024
| “Mean, 0:000 | —053 +4030 —081 —041 —066 —006 —040 —055 —048 —044 4007 +087
| The numbers differ considerably in some cases for the same month in the two years; a greater number
Sor partial results are therefore evidently required for a good mean. The mean of both years shews, that the dis-
| turbed means were greater than the undisturbed in November, December, and February (or, about the winter
solstice), and less in all the other months, the diminution being greatest in March, May, and August.
5 Differences of the Daily Means of the Vertical Component from the Means for the corresponding Months.—
_ The discussion for 1844 will be found in the volume for that year, p. 374, the results for 1845 and 1846
| are obtained from Tables XXXI. and LXIII., pages 18 and 35 of this volume.
| * 90. The conclusions from Table 42 are :—
1st, That the positive departures of the daily mean vertical component from the monthly mean value are
_Breatest in September and in February, and that they are least in January and June.
_ 2d, That the negative departures of the daily mean from the monthly mean are greatest in September,
Tanuary, and May, and least in March and July.
| _ 3d, That the mean positive departure 1 is most in excess of the mean negative departure in February, while
the latter is most in excess of the former in J anuary, and in the months from March to June ; with the excep-
tion of February, the mean negative departure is greater than the mean positive departure in the first six months
| of the year ; and, with the exception of August, the reverse is the case for the last six months.
4th, That the mean departure of the daily mean from the monthly mean (without reference to sign) is
| greatest in September, and least in March.
5th, The mean departure of the daily mean vertical component from the monthly mean for 1844 = 0-000105
NED, 205 fa cisaigs <a preetNMsy Que Ecard. tas paid «nivale Holiclewibjee eis srv oie egid a ataatp aval ope slete 1845 = 0:000117
260. =. .5. PAReAs ate creek SAE ata ah ay? Wiriersh xtc od Wide moisrslb a aw b's spremaicle w bel siethavelecierbmbian » 1846 = 0-000131
Bees tea hoe oensies Heo Seated cy PPPoE og. hriagtiee aeiviea hwioie linowoseltsMedne -dasignteme nck ov years’ =7.0°000118
MAG. AND MET. OBS. 1845 anp 1846. . m
xlvii GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
TABLE 42.—Means of the Positive and Negative Departures of the Daily Means from the Monthly
Means of the Vertical Component of Magnetic Force, with their Differences.
Mean Departures, without refer-
Mean Positive Departures.
Mean Negative Departures. ;
Diff. of ence to Sign.
Month. Mean
Depart.
1844, | 1845. | 1846. | Mean. |} 1844. | 1845. | 1846. | Mean. 1844, | 1845. | 1846. | Mean. |
0-00 0-00 0-00 0-00 0-00 0-00 0-00
0128 | 0164 | 0138 | 0143 |—0046 | 0089 | 0133 | 0122 | 0115
0119 | 0097 | 0142 | 0119 ||+0028 | 0123 | 0112 0153 | 0129
0175 | 0077 | 0079 | 0110 ||—0025 | 0135 | 0059 0088 | 0094
0107 | 0171 | 0099 | 0126 ||—0037 | 0091 | 0118 | 0099 | 0103
0155 | 0176 | 0088 | 0140 || —0027 | 0138 | 0136 | 0095 | 0123
0162 | 0088 | 0144 | 0131 ||—0032 || 0117 | 0084 | 0133 | 0111 |
0115 | 0091 | 0127 | 0111 | +0016 | 0102 | 0094 | 0153 | 0116 |
0078 | 0168 | 0116 | 0121 | —0009 | 0081 | 0117 | 0135 | 0111
0118 | 0144 | 0183 | 0148 |4+0013 | 0085 | 0133 | 0225 | 0148 |
0126 | 0084 | 0172 | 0127 |+0003 | 0121 | 0097 | 0165 | 0128 }
0084 | 0194 | 0112 | 0130 |+40001 | 0097 | 0140 | 0134 | 0124 |
0070
Prefix. || 0:00 0:00 0-00 0-00
Jan. 0068 | 0112 | 0110 | 0097
Feb. 0140 | 0134 | 0167 | 0147
Mar. 0109 | 0048 | 0098 | 0085
April 0079 | 0090 | 0098 | 0089
May 0124 | 0110 | 0104 | 0113
June 0091 | 0082 | 0123 | 0099
July 0092 | 0098 | 0191 | 0127
Aug. 0084 | 0090 | 0161 | 0112
Sept. 0066 | 0124 | 0292 | 0161
Oct. 0117 | 0114 | 0158 | 0130
Nov. 0115 | 0109 | 0168 | 0131
TABLE 43.—Mean Diurnal Range of the Vertical Component of Magnetic Force, as deduced from _
the Ordinary Daily Observations.
March,
Prefix. |] 0:00 0-00 0-00 0-00 0-00 0-00 | 0:00 0:00 0:00 | 0-00 0-00
1843 || 0330 | 0374 | 0480 | 0684 | 0562 | 0396 | 0490 | 0473 | 0502 | 0444 | 0305
1844 || 0481 | 0584 | 1202 | 1164 | 0830 | 0433 | 0522 | 0944 | 0936 | 1058 | 1034
1845 || 0812 | 0630 | 0849 | 0859 | 0662 | 0461 | 0537 | 0797 | 0924 | 0601 | 0497
1846 || 0251 | 0310 | 0501 | 0811 | 0876 | 0681 | 1096 | 1204 | 1445 | 1098 | 0871 |
te 0290 | 0342 | 0490 | 0747 | 0719 | 0538 | 0793 | 0838 | 0973 | 0771 | 0588
He, 0646 | 0607 | 1025 | 1011 | 0746 | 0447 | 0529 | 0870 | 0930 | 0829 | 0765
sont 0468 | 0474 | 0758 | 0879 | 0732 | 0493 | 0661 | 0854 | 0952 | 0800 | 0677
91. Annual Variation of the Diurnal Ranges of the Vertical Component of Magnetic Force.— From the num- ‘
bers in Table 438, it appears, that the diurnal range of the vertical component is greatest at the equinoxes, and —
that it is least at the solstices. The values in Table 43 are deduced from the ordinary daily observations in —
the various years. When we consider the diurnal ranges from all the observations made in each of the years —
1844 and 1845 (in the manner already noted for the magnetic declination No. 12), we obtain the following
means for the several months in each year, (prefix 0-00.) 7
*
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec. Mean. :
1844, 0496 0729 13873 1327 0964 0442 0545 1064 1050 1171 1182 0522 0905 e
1845, 0943 0686 0934 0924 0697 0464 0546 0820 0961 0634 0540 0560 0726 —
Mean, 0719 0707 1153 1125 0830 0453 0545 0942 1005 0902 0861 0541 0815 i
These means give the same law as has already been deduced from Table 43; the values are greater than :
those for the same years deduced from the ordinary daily observations, but the increase is considerably |
than in the cases of the magnetic declination and horizontal component.
ANNUAL VARIATIONS FOR THE VERTICAL COMPONENT OF MAGNETIC FORCE.
xlix
Annual Variation of the Ranges of the Monthly Mean Diurnal Variation of the Vertical Component.—
In the previous Table we have given the monthly means of the diurnal ranges observed for each day, the follow-
‘ing Table contains the diurnal range of the hourly means for each month, those for 1844 and 1845 only being
‘comparable with each other.
TABLE 44.—Ranges of the Mean Diurnal Variation of the Vertical Component of Magnetic Force.
Year. || Jan. Feb. | March.| April. | May. | June. | July. | Aug. | Sept. | Oct. Nov. | Dec. || Year.
0-00 | 00 0-00 0:00 0:00 0-00 0:00 0-00 0-00 0:00 0:00 0-00 0-00
1843 || 0210 | 0239 | 0284 | 0594 | 0302 | 0259 | 0289 | 0282 | 0301 | 0297 | 0195 | 0292 || 0252
1844 || 0271 | 0273 | 0688 | 0705 | 0516 | 0233 | 0298 | 0587 | 0616 | 0702 | 0588 | 0292 || 0419
1845 || 0440 | 0412 | 0629 | 0581 | 0432 | 0284 | 0293 | 0464 | 0677 | 0365 | 0296 | 0355 || 0399
1846 | 0181 | 0168 | 0360 | 0588 | 0606 | 0403 | 0776 | 0807 | 0740 | 0863 | 0601 | 0177 | 0479
al 0250 | 0258 | 0540 | 0716 | 0522 | 0257 | 0412 | 0608 | 0666 | 0561 | 0363 | 0269 || 0422
92. The last line of Table 44, which is deduced from observations for the four years, as in Table 48, shews
| the law already obtained from Table 43, but in a more marked manner. In the corresponding discussions for the
| declination (No. 14) and for the horizontal component (No. 62), it was found that in the combination of four
| years’ observations, the differences between the diurnal range at the summer solstice, and for the preceding and
| succeeding months, was considerably diminished ; this is not the case for the vertical component; the range at
| the equinoxes of the hourly mean variation is nearly three times the range at the solstices. When, however,
| we consider the ranges of the hourly mean variation, as deduced from days selected nearly free from disturbances,
we obtain a result similar to that for the other elements. The following are the ranges of the hourly means for
‘each month deduced from the selected days in 1844 and 1845 (see 1844, p. 379, and p. 21 of this volume) :—
Prefix.; Jan. Feb, March. April.
May.
| 0:00 | 0124 0124 0180 0186
0223
June,
0238
July.
Aug. Sept. Oct. Nov. Dec. Year.
0196
O190 0257 :0209 0167 0132 0136
é
From these it appears, that the diurnal range of the mean variation, when unaffected by intermittent disturb-
| ance, varies little from March to October, the irregularities in the values being due in all probability to dis-
turbance remaining in the selected days.
7 93. On the whole it is evident for all the three elements, that the law of the variation with season of the
| range of the hourly variations when unaffected by intermittent disturbance is as follows :—A gradual increase
trom the winter solstice till the vernal equinox, little variation from the vernal till the autumnal equinox, and
a gradual decrease from thence till the winter solstice. Intermittent disturbances increase the diurnal range
‘greatly at the equinoxes, and more at the winter solstice than at the summer solstice.
94. Annual Variation of the Mean Difference of a Single Observation of the Vertical Component from the
| Monthly Mean at the corresponding Houwr.—The following mean differences have been obtained from Table L.
| 1844, p. 389, and Table XLI. p. 23 of this volume :—
| | Year. Prefix.
; Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec. ; Mean.
| 1844, 0-000 123% Lojmeeeeen 224 2 2030 (las telis7z. / 172s: W9le 247% S199 ON 19s 6 184
(1845, 0-000 192 topeloce fo Ay Vs A387 e167 (210 9189 168 208 |167
| ‘Mean, 0-000 a7 ogee 2200" = 188130" 9137 170200 1938 Mes — "1165 | 175
‘These numbers give the same law as has already been obtained for the other two elements. The mean
difference of an observation of the vertical component is greatest at the equinoxes, and least at the solstices
(see No. 16).
95. Annual Variation of the Number of Observations of the Vertical Component which were greater than the
Monthly Means for the corresponding Howrs.—The numbers in 100 observations for each month of the years
1844 and 1845 are as follow :—
Jan.
Feb.
March. April. May.
1644, 53:0 49:5 57-7 49:8 52:5
1845, 55:7 549 55:3 59:3 54:8
Mean, 544 522 567 545 53-6
June.
55:7
51:5
53°6
July.
05°4
54:3
54:8
Aug.
52:0
57:4
54-7
Sept.
55°0
50°6
52°8
Oct.
50:0
56°3
53°1
Dec.
40-7
43°2
41°9
Mean.
51:5
53:9
52°7
1
In the mean of both years, each month, with the exception of November and December, has more observations
greater than the monthly mean than it has less, the excess being from 5 to 13 in 100;
bers of positive and negative departures are equal, and in December the greatest difference occurs between
GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
positive and negative departures, the latter being greater than the former by 16 in 100.
TABLE 45.—Mean Variations of the Vertical Component of Magnetic Force free from Regular
MontTHLY VARIATIONS FOR THE VERTICAL COMPONENT.
in November the num-
Secular Change, with reference to the Moon’s Age and Declination.
Moon’s || jg43. | 1844.
Age.
d. d. 0:00 0:00
14—16 ||—0016 | —0062
17—20 ||+0012 | —0002
21—24 ||+0013 |+0044
1 25—28 ||+0031 |+0015
29— 1 ||—0027 |+ 0008
2— 5 ||—0010 |+0010
6— 9 | +0027 |+0031
10—13 ||—0028 | —0042
Variations of the Daily Mean Vertical Component, with reference to the Moon’s Age and Declination.—
Table 45 has been formed from the Tables in previous volumes, and in this volume, pages 18 and 35;
means for 3 or 4 days are given, positive when greater than the mean for the year, and negative when less.
1845.
0-00
— 0010
+0012
+0005
— 0027
— 0022
+0052
+0006
— 0019
1846.
0-00
+ 0020
+ 0066
+0046
— 0031
— 0004
— 0057
— 0023
—0016
Mean.
0:00
— 0017
+0022
+0027
— 0003
— 0011
— 0001
+0010
— 0026
After
Moon
farthest
North.
ee od.
27— 1
2— 5
6— 8
9—12
13—15
16—19
20—22
23—26
1843.
96. The conclusions from the means of 4 years in Table 45, are,—
lst, That the vertical component is a maximum at the quadratures, and a minimum at conjunction and
at opposition ; the principal maximum occurs about 7 days after opposition, and the secondary maximum about —
the difference of the values of the two maxima is due chiefly to the year 1846,
the only year which does not exhibit two maxima and two minima. a
2d, That the vertical component is a maximum when the moon is farthest north, and also when it is
7 days after conjunction ;
1844,
0-00
+ 0038
— 0008
— 0004
— 0026
+0012
+0004
— 0015
0000
Te45.
0-00
— 0005
— 0064
+0006
+0001
+0011
+0050
+0025
— 0023
1846.
0-00
— 0005
+0010
— 0047
+0003
+0005
— 0048
+0034
+0048
Mean.
0-00
+0020
— 0004
— 0009
—0010 |
+0012
— 0007
— 0001
— 0001
farthest south, and between these epochs it is a minimum; the minima occurring when the moon is rather
south of the equator.
Variation of the Diurnal Range of the Vertical Component, with reference to the Moon's Age and Deelina-
tion.—The means of groups of days given in Table 46, have been deduced from the Tables in former volumes,
and in this volume, pages 19 and 36.
oh
TABLE 46.—Diurnal Range of the Vertical Component of Magnetic Force, with reference to the
Moon’s Age and Declination.
Moon’s
Age. || 1843. | 1844. | 1845. | 1846.
d. d 0-00 0:00 0:00 0-00
14--16 || 0423 | 1238 | 0617 | 0943
17—20 || 0406 | 1149 | 0737 | 1141
21—24 || 0316 | 0544 | 0700 | 0870
25—28 || 0502 | 0446 | 0658 | 0568
29— | 0374 | 0540 | 0610 | 0731
2— 5 || 0395 | 0463 | 0627 | 0640
6— 9 || 0678 | 0688 | 0710 | 0875
10—13 || 0505 | 1221 | 0618 | 0761
Mean.
After
Moon
farthest
North.
a.
27— 1
2—»9
6— 8
9—12
13—15
16—19
20—22
23—26
d.
This result is shewn, though with some irregularity, in the numbers for each year,
should be remembered, in glancing over these Tables, that the number which indicates a maximum may have —
the negative sign, and ‘that which indicates a minimum may have the positive sign; thus, in 1845 the pre
cipal maximum occurs about 4 days after the moon’s greatest south declination, the secondary maximum 0
when the moon is farthest north, and the minima oceur when the moon is about 3 days north of the equator. —
>
ie
1844. | 1845. | 1846. || Mean.
0°00 0:00 0-00 0-00
0578 | 0587 | 0829 | 0632
0930 | 0976 | 0637 || 0785 e
0850 | 0776 | 0738 | 0707 i
0657 | 0681 | 1113 | 0709 Re
0626 | 0482 | 0637 | 0562 sy
0773 | 0767 | 0518 || 0610 a
0872 | 0475 | 1068 |) 0691 ”
0946 | 0478 | 0952 | 0700
DIURNAL VARIATIONS FOR THE VERTICAL COMPONENT OF MAGNETIC FORCE. li
97. From Table 46 we conclude,
1st, That the diurnal range of the vertical component is greatest immediately after opposition, and that
it is least about conjunction ; there is the appearance of a secondary maximum at conjunction in three of the
years, and in the means of all.
2d, That the diurnal range is 2 minimum when the moon is farthest south, and also when it is farthest
north, and that it is a maximum when the moon is north of the equator.
TasLE 47.—Mean Difference of a Single Observation of the Vertical Component of Magnetic Force,
from the Monthly Mean at the corresponding Hour, with reference to the Moon’s Age and
Declination.
After
Varia- Moon
tions. farthest
North.
0°00 d. d. ||
+0006 | 27— 1
+0015 | 2— 5
—0011 | 6— 8
—0007 | 9—12
+0005 | 13—15
—0027 | 16—19 |
0000 | 20—22
+0023 | 23—26
98. Variation of the Mean Difference of a Single Observation from the Monthly Mean for the corresponding
Hour, with reference to the Moon’s Age and Declination.—Table 47 has been formed from Table 41, p. 386,
1844, and Table XLIL., p. 23, of this volume. The conclusions from Table 47 are nearly the same as those
already made for the diurnal range, No. 97, they are as follow :—
1st, The mean difference of an observation of the vertical component from the monthly mean for the
‘corresponding hour is a maximum about the time of opposition, and a minimum before and after conjunction,
a secondary maximum occurring at conjunction.
2d, The mean difference is a minimum when the moon is farthest north, and also when farthest south,
maxima occurring between these epochs.
The differences of the results for the single years from those for the mean of both are not greater than
might be expected in such an investigation ; the general agreement of the results, however, with those for the
diurnal ranges deduced from four years’ observations is a confirmation of their accuracy.
DIURNAL VARIATIONS FOR THE VERTICAL COMPONENT OF MAGNETIC FORCE.
Diurnal Variation of the Vertical Component.—The following Table has been formed in the manner
already described for the magnetic declination, No. 26; the means from which it has been formed will be
found in the previous volumes, and in this volume, pages 20 and 37.
99. The following are the approximate epochs of the maxima and minima in apparent time, as deduced
from Table 48.
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
is jms h. m. h mm, h. m. In ag, h, m. Va a h m. h. m. he) em h m. h. m.
Mex. +7 5 +525 +510 +60+60++4+620 +520 +60 +5 5 +4 0 +6415 ae
Mine -14 0 -14 0 -14 0 -1215 —13 46 138 45 -1410 -1315 -1315 —16 30 -—13 0 —16 20
Max. 20 15 21 0 19 50 20 0 20 30 20 40 22 0 2
Min. 0 0 0 15 0 0 — 010 23 55 23 40 23 30 2
The principal maximum occurs between 4° p.m. and 7" p.m. ineach month of the year; it occurs earliest in
| February and March of the first six months of the year, and in October and September of the remaining
months ; it occurs latest in January and December ; and later in June than in the immediately preceding and
succeeding months. A minimum occurs between midnight and 4” a.m. throughout the year, which is the prin-
| cipal minimum excepting in June.
4
|
Only one maximum and minimum occur in the diurnal variation for the four winter months, November to
February ; ; in the other months a secondary minimum occurs about noon, which becomes more distinct the nearer
the time is to the summer solstice, when that minimum is better marked than the other near midnight.
MAG. AND MET. OBS. 1845 anp 1846. n
lu GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
TABLE 48.—Diurnal Variations of the Vertical Component of Magnetic Force, as deduced from the -
Regular Daily Observations made during the Four Years 1843 to 1846.
Mean Jan. Feb. | March. | April. July.
h. m. || 0:00 0-00 0:00 ; 0-00 .
12 13 || 0035 | 0008 | 0061 | 0000 | 0036 | 0044 | 0051 | 0002 | 0033 | 0118 | 0000 | 0051
13 13 || 0046 | 0001 | 0017 | 0079 | 0001 | 0011 | 0018 | 0010 | 0000 | 0088 | 0002 | 0045
14 13 || 0000 | 0000 | 0000 | 0091 | 0000 | 0012 | 0000 | 0000 | 0042 | 0060 | 0008 | 0016
15 13 | 0011 | 0001 | 0023 | 0156 | 0014 | 0048 | 0012 | 0044 | 0040 | 0040 | 0014 | 0001
16 13 || 0007 | 0013 | 0095 | 0137 | 0107 | 0071 | 0046 | 0118 | 0093 | 0000 | 0021 | 0002
17 13 || 0008 | 0010 | 0125 | 0194 | 0181 | 0091 | 0059 | 0179 | 0144 | 0048 | 0031 | 0000
18 13 | 0031 | 0020 | 0159 | 0271 | 0247 | 0141 | 0110 | 0232 | 0212 | 0132 | 0039 | 0006
19 13 || 0045 | 0037 | 0223 | 0323 | 0283 | 0175 | 0146 | 0295 | 0291 | 0232 | 0059 | 0019
20 13 || 0067 | 0044 | 0280 | 0374 | 0286 | 0183 | 0165 | 0327 | 0329 | 0304 | 0092 | 0040
21 13 || 0076 | 0059 | 0278 | 0391 | 0265 | 0140 | 0158 | 0330 | 0352 | 0350 | 0116 | 0047
22 13 | 0098 | 0060 | 0260 | 0372 | 0214 | 0087 | 0140 | 0296 | 0367 | 0351 | 0110 | 0055
23 13 || 0128 | 0072 | 0241 | 0358 | 0182 | 0012 | 0082 | 0240 | 0344 | 0350 | 0129 | 0078
0 13 || 0139 | 0090 | 0227 | 0352 | 0178 | 0000 | 0076 | 0238 | 0372 | 0397 | 0176 | 0099
13. || 0169 | 0111 | 0269 | 0368 | 0216 | 0015 | 0113 | 0297 | 0435 | 0423 | 0208 | 0126
13. || 0203 | 0151 | 0358 | 0446 | 0286 | 0058 | 0169 | 0381 | 0529 | 0481 | 0242 | 0166
13 || 0220 | 0216 | 0417 | 0532 | 0390 | 0126 | 0274 | 0471 | 0618 | 0560 | 0317 | 0231
13 || 0221 | 0246 | 0464 | 0590 | 0448 | 0211 | 0365 | 0550 | 0656 | 0561 | 0363 | 0235
13. || 0241 | 0258 | 0540 | 0696 | 0513 | 0243 | 0412 | 0596 | 0666 | 0536 | 0340 | 0249
0241 | 0254 | 0518 | 0716 | 0522 | 0257 | 0402 | 0608 | 0544 | 0487 | 0428 | 0269
13 || 0250 | 0220 | 0457 | 0654 | 0502 | 0247 | 0385 | 0537 | 0486 | 0440 | 0332
13 || 0244 | 0204 | 0383 | 0518 | 0432 | 0227 | 0319 | 0434 | 0380 | 0373 | 0242
0198 | 0139 | 0260 | 0396 | 0321 | 0176 | 0221 | 0259 | 0253 | 0308 | 0159 | 0162
13 || 0063 | 0122 | 0093 | 0308 | 0244 | 0100 | 0161 | 0187 | 0177 | 0248 | 0077 | 0133
0018 0120 0055 | 0102 | 0041
i=)
bo
oO
w
_
KF SOOON OOF & We
_
eo
—
_
wo
oS
(=)
bo
ew
So
i)
bo
aa
i=)
—
lor)
o
—
oS
CO
o
a
~I
LN)
o
i=)
bo
co
So
i=)
io.)
fon
TABLE 49.—Diurnal Variations of the Vertical Component of Magnetic Force for Different Periods,
deduced from Table 48.
Six Months.
Mak. Dec. Scien
ee. ao April, June, Aug. ey cy Re Months,
Feb Aug
h m 0:00 0-00 0-00 0:00 00 0:00 0-00
L203 —0075 | —0270 | —0143 | —0196 | —0201 —0138 | —0203
13 1s —0075 | —0252 | —0177 | —0208 | —0222 | —0148 | —0212
14 13 —0101 | —0255 | —0177 | —0222 | —0214 || —0157 | —0218
15 13 —0102 | —0211 | —0152 | —0194 | —0220 | —0161 | —0186
16 13 | —0099 | —0184 | —0094 | —0140 | —0213 || —0156 | —0139
17 13 | —0100 | —0141 | —0047 | —0103 | —0177 || —0138 | —0097
18 13 || —0087 | —0085 | +0011 | —0051 | —0123 | —0105 | —0042
19 13 —0072 | —0027 | +0046 | —0002 | —0057 || —0064 | +0006
20 13 —0056 | +0027 | +0051 | +0024 | —0009. || —0032 | +0034
21s —0045 | +0054 | +0018 | +0022 | +0022 | —0011 | +0025
22) 13 —0035 | +0016 | —0033 | —0004 | +0025 || —0005 | —0007
23° 13 —0013 | —0001 | —0086 | —O0061 | +0023 || +0005 | —0049
(Oe is) +0003 | —0011 | —0094 | —0065 | +0064 || +0033 | —0057
es} +0029 | +0018 | —0068 ;} —0017 | +0104 || +0066 | —0022
2:13 +0067 | +0102 | —0011 | +0053 | +0166 || +0116 | +0048
3 13 +0116 | +0174 | +0075 | +0150 | +0247 || +0181 | +0133
4 13 +0128 | +0227 | +0146 | +0235 | +0276 || +0202 | +0203
5 13 +0145 | +0318 | +0195 | +0282 | +0263 || +0203 | +0265
6 13 +0149 | +0317 | +0206 | +0283 | +0235 || +0192 | +0269
7 13 +0135 | +0255 | +0191 | +0239 | +0168 | +0151 | +0228
8 13 +0104 | +0150 | +0146 | +0154 | +0081 +0092 ) +0150
9 13 +0060 | +0028 | +0065 | +0018 | —OOI11 || +0024 | +0037 |
10 13 0000 | —0100 |} —0011 | —0048 | —0084 | —0042 | — 0053 | :
digi eet hes) —0064 | —0128 | —0068 | —0151 | —0148 | —0106 | —0116
: DIURNAL VARIATIONS FOR THE VERTICAL COMPONENT OF MAGNETIC Force. iii
. 4 ;
| _ 100. When we combine the means in groups in the manner already adopted for the magnetic declination,
_ No. 31, we obtain the following epochs of maxima and minima in apparent time (see Plate III.)
; Dec. Jan. Feb. March, April, May, June, July, Aug. Sept. Oct. Nov.
Maximum, 5» 50™ p.m, 54 40™ p.m, 65 Om p.m. 5> 40™ p.m. 4h 25™ p.m.
Minimum, 3h 40™ 4M. 12> 10™ a.m. 1h 45m a.m. 25 10™ a.m. 25 30™ a.m.
Maximum, 8» 40™ a.m. 82 0m a.m. 8h 35™ a.m.
02 O™ Noon. 02 O™ Noon. 11h 45™ a.m.
Minimum,
The conclusions from the epochs for these groups are quite similar to those already obtained from the epochs
for the single months. The afternoon maximum occurs earliest in September to November.
oa ABLE 50.—Diurnal Variations of the Vertical Component of Magnetic Force for Different Periods,
deduced from Days selected as free from Irregular Disturbances, in the Years 1844 and 1845.
+0049 | +0049 || +0044 | +0055 || +0049
+0031 | +0038 | +0037 | +0038 || +0037
—0005 | +0004 || +0021 | +0011 || +0016
—0029 | —0026 | —0003 | —0024 || —0014
—0063 | —0072 || —0043 | —0056 || —0049
Six Months.
c Oct. Twelve
April. June. Aug. Nov. Sept. to March Months.
Feb. to Aug.
. h. m. || 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0-00
' 4 12 13 —0018 | —0065 | —0063 | —0069 | —0079 —0048 | —0066 — 0057
13 13 —0023 | —0069 | —0056 | —0071 | —0081 — 0052 | —0065 — 0058
143 —0028 | —0038 | —0038 | —0060 | —0070 —0049 | —0045 — 0047
15 13 — 0035 | —0026 | —0003 | —0031 | —0067 —0051 — 0020 — 0035
j 16 13 —0040 |} —0032 | +0030 | +0011 | —0063 —0051 | +0003 — 0024
} 7 72 —0045 | —0022 | +0060 | +0038 | —0057 —0051 | +0025 — 0013
| 18 13 — 0049 |} +0003 | +0077 | +0068 | —0043 —0046 | +0049 +0001
19 13 —0050 |} +0029 | +0083 | +0075 | —0013 —0031 | +0062 +0016
20 13 —0035 | +0058 | +0071 | +0058 |} +0014 —0010 | +0062 +0026
; il 1s — 0034 | +0052 | +0017 | +0030 | +0021 —0006 | +0033 +0013
raid We) — 0025 | +0017 | —0047 | —0004 | +0002 —0011 — 0011 —0011
‘. Psy Ae} —0014 | —0034 | —0112 | —0071 — 0012 —0013 | —0072 — 0043
0 — 0099 | —0018 —0010 | —0103 — 0057
1 —0081 | +0014 +0014 | —0079 — 0032
2 —0040 | +0068 +0055 | —0034 +0010
3 +0018 | +0106 +0085 | +0012 +0049
4 +0071 | +0119 +0092 } +0062 +0077
5 +0086 | +0100 +0074 | +0080 +0077
6 +0077 | +0072 +0056 | +0075 +0065
=
8
9
0
1
—
- 101. When we consider the diurnal variation as deduced from days selected as nearly free from inter-
mittent disturbance (No. 85), and as exhibited in the means, Table 50, and the dotted curves, Plate III., we
md that the epochs of maximum are considerably altered as well as the whole form of the diurnal curve.
he epochs of maxima and minima in apparent time are as follow :—
Dec. Jan. Feb. March, April, May, June, July, Aug. Sept. Oct. Nov.
35 40™ p.m. 55 10™ p.m. 65 Om p.m. 55 10™ p.m. 4h 10™ p.m.
65 40m a.m. 12 Om aM. 12 20™ a.m. 12» 40™ a.m. 125 55™ a.m.
8» 30™ a.m. 7> Om a.m. 6 55™ aM, 9h 10™ a.m.
Oh 20™ p.m. 0» Om Noon. 0» 20™ p.m. Oh 5™ pM.
| Hence, in the undisturbed diurnal variation, the maximum of the vertical component occurs earliest in the
| es December to February, and latest in the months May and June.
| _ The form of the diurnal curve is quite different in the months November to February, from that for the
other months : in the four winter months the diurnal curve is single, having but one maximum and minimum,
liv GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
the latter occurring about 7 a.m., which is nearly the epoch of a maximum in the other months: in the months
from March to September the diurnal curve is double, the maxima having nearly the same value in each
month, and the minima also being nearly equal ; the form of the diurnal curve from March to September is
nearly constant ; in October the morning maximum becomes less marked, and it wholly disappears in Novem-
ber. In June the minima occur almost exactly at apparent midnight and noon, that at the latter time being —
on the whole best marked; the maxima occur when the sun is near the prime vertical.
102. Diurnal Variation of the Effect of Disturbance on the Mean Vertical Component.—The following
Table contains the mean effect of disturbance upon the hourly means in each group of months, the assumption
being made that the effects of disturbance upon the means of the groups of months are zero ; it will be seen
from Nos. 89 and 85 that the means of the days selected as free from disturbance, are rather greater —
than the means for all the days ; while this difference may be partially due to regular laws, it is also so small, —
compared with the actual differences in the following Table, that the epochs for the zero of effect would
be little altered if it were taken into account. It will be seen also that the epochs for each group vary little, —
though the effect of disturbance, as found No. 89, differs considerably in the different groups; thus, for the
group December to February, the mean for all the selected days is 0:000005 greater than the mean for all the
days, while the mean of the selected days in March and April is 0:000061 less than the mean for all.
TABLE 51.—Differences of Disturbed and Undisturbed Diurnal Variations of the Vertical Com-
ponent of Magnetic Force, as deduced from Tables 49 and 50, exhibiting the effect of Irregular
Disturbance on the Hourly Mean Positions.
Six Months.
March. \ Twelve
April. : ‘ Months.
Lae S
SKCOMONRAUKRWNH OS
—
103, The following are the conclusions from Table 51.
lst, The greatest effect of disturbance in increasing the vertical component occurs
In Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov.
About 65 15™ p.m. 6h Om p.m. 65 30™ p.m, 65 0™ p.m. 5> 30™ p.m. —
[
eV ff
.
=
Throughout the year, therefore, the greatest effect of disturbance in increasing the vertical component occurs
near 65 p.m. or about the epoch of the maximum for the mean value, No. 100.
2d, The greatest effect of disturbance in diminishing the vertical component occurs
DIURNAL VARIATIONS FOR THE VERTICAL COMPONENT OF MAGNETIC FORCE. lv
In Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Novy.
About 25 30™ a.m. 1 40™ a.m. 2h 50™ a.m. 2h 45™ a.m. 35 30™ a.m.
The greatest effect in diminishing the vertical component occurs throughout the year between 13 and 3}
A.M., or rather after the epoch of the principal minimum for the mean value, No. 100. Irregular disturbance,
therefore, has the same effect on the value of the vertical component as the cause producing the regular diurnal
variation.
3d, The effect of disturbance on the vertical component is zero
In Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov.
PAbout 112 a.m. &93"p.m. 10" am. & 93 P.M. 92am. & 1052 Pm. 10}2 am. & 93" p.m. 91" a.m, & 97 P.M.
“The effect of disturbance on the hourly mean appears to be zero about the time the sun is on the magnetic meridian.
Diurnal Variation of Frequency of the Positive Departures from the Hourly Mean Positions.—The number
of observations which were in excess of the hourly mean for each month in 1844 and 1845 having been ob-
tained, the means for groups of months were taken, and the following Table was formed.
TABLE 52.—Numbers in 100 Observations of the Vertical Component of Magnetic Force which were
greater than the corresponding Hourly Means, deduced from all the Hourly Observations in 1844
and 1845.
0
1
2
3
4
5
6
7
8
9
0
1
—
104, The following are the epochs of maximum and minimum frequency of the positive departures for each
‘quarter.
Nov. Dee. Jan. Feb. Mar. April. May, June, July. Aug. Sept. Oct.
Maximum, 11 p.m.—2h a.m. 2h4h aM, 2h—5> a.m. 112 p.w.—6" a.m.
Minimum, 5} PM. 52 p.m. 5» p.m. 53” p.m.
It appears, therefore, that the number of positive departures from the mean of all the observations for the
hour is least about 5" p.m., or about the time that the effect of disturbance in increasing the hourly mean is
Greatest, and that the number is greatest when the effect of disturbance in diminishing the hourly mean is least,
No. 103: the effect of disturbance on the hourly mean position is so considerable when compared with the
whole diurnal variation, that it is evident that the number of departures from the undisturbed positions must
have their maximum about 5” p.m. and their minimum about 25—3" a.m.
Diurnal Variation of the Mean Differences of the Value of the Vertical Component from its Monthly Mean
| Value at the corresponding Hour.—Table 53 has been formed from Table LIII., for 1844, p. 387, and
Table XLIII., p. 24 of this volume, in the manner already described, No. 43, for Table 18.
MAG. AND MET. OBS. 1845 anv 1846.
lvi
GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
TABLE 53.—Mean Difference of the Observations of the Vertical Component of Magnetic Force,
in 1844 and 1845, from the Monthly Means at the corresponding Hours in each Year, as deduced
from all the Regular Observations.
Mean Positive Difference. Mean Negative Difference. Mean Difference.
Mak.
Mean Nov. | Feb. | May. | Aug. Nov. | Feb. | May. | Aug. Nov. | Feb. | May. | Aug.
Time. Dec. | Mar. | June. | Sept. || Year. | Dec. | Mar. | June. | Sept. || Year. | Dec. | Mar. | June.| Sept. || Year.
Jan. | April.| July. | Oct. Jan. | April.| July. | Oct. Jan. | April.| July. | Oct.
h. ms 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0-00 0-00 0-00 0:00 0-00 0-00 0-00 0-00
12 13 || 0159 | 0229 | 0151 | 0187 || 0183 | 0199 | 0533 | 0208 | 0379 || 0311 | 0177 | 0320 | 0175 | 0250) 0230
13 13 || 0147 | 0222 | 0183 | 0187 || 0185 [0191 | 0431 | 0252 | 0379 || 0303 | 0166 | 0293 | 0212 | 0250) 0230
14 13 || 0138 | 0226/0173 | 0197 || 0185 | 0259 | 0567 | 0283 | 0400 || 0352 | 0171 | 0323 | 0215 | 0264 || 0243
15 13 || 0142 | 0203 | 0180 | 0206 || 0184 | 0196 | 0497 | 0293 | 0409 || 0334 | 0165 | 0288 | 0223 | 0274 || 0237
16 13 || 0136/0185 | 0151 | 0214 || 0172 | 0195 | 0487 | 0263 | 0389 || 0320 | 0160 | 0268 | 0192 | 0276 |) 0224
17 13 || 0139 | 0173 | 0145 | 0181 || 0161 | 0185 | 0403 | 0237 | 0351 || 0281 | 0159 | 0242 | 0180 | 0239 || 0205
18 13 || 0135 | 0148 | 0140 | 0153 || 0144 | 0179 | 0274 | 0201 | 0304 || 0236 | 0154 | 0192 | 0165 | 0204 || 0179
19 13 || 0134 | 0124 | 0134 | 0143 || 0134 |0151 | 0171 | 0167 | 0198 || 0170 | 0142 | 0144 | 0149 | 0166) 0150
20 13 || 0133 | 0101 | 0131 | 0130 |) 0124 | 0141 | 0145 | 0154 | 0156 || 0148 | 0137 | 0119 | 0142 | 0142|| 0135
21 13 || 0125 | 0097 | 0121 | 0120 || 0116 | 0147 | 0126 | 0160 | 0122) 0138 | 0135 | 0110 | 0138 | 0121 || 0126
22 13 0120) 0101 | 0122/0111] 0113 | 0141 | 0112 | 0137 | 0120|| 0128 | 0130 | 0106 | 0129 | 0115 || 0120
23 13 || 0120) 0115 | 0132} 0112) 0119 |} 0120) 0115 | 0124 | 0106 || 0117 | 0120| 0115 | 0128 | 0109 | 0118
0 13 || 0137 | 0157 | 0123 | 0163 || 0145 |0122) 0131 | 0121 | 0111 || 0121 | 0129 | 0143 | 0122 | 0132) 0132
1 13 || 0140 | 0146 | 0115 | 0180} 0143 | 0127 | 0124 | 0125 | 0123 || 0124 | 0133 | 0134 | 0120 | 0146) 0133
2 13 || 0163 | 0174/0113 | 0183] 0156 |0123 | 0132 | 0135 | 0133 || 0130 | 0140 | 0150 | 0123 | 0154) 0142
3.13 || 0289 | 0251 | 0131 | 0246 | 0220 | 0155 | 0144 | 0139 | 0157 || 0151 | 0202 | 0183 | 0135 | 0192|| 0178
4 13. || 0333 | 0260 | 0166 | 0282 | 0254 | 0179} 0140 | 0147 | 0180 || 0162 | 0233 | 0182 | 0156 | 0220), 0198
5 13 || 0392 | 0368 | 0182 | 0359 |, 0315 |0189 | 0181 | 0152 | 0198 || 0181 | 0255 | 0243 | 0166 | 0255 | 0230
6 13. || 0447 | 0341 | 0164 | 0285 || 0292 | 0187 | 0188 | 0151 | 0157 || 0171 | 0264 | 0242 | 0157 | 0202); 0216
7 13 || 0336 | 0227 | 0152 | 0213 || 0225 | 0166 | 0142 | 0130 | 0148 || 0147 | 0222} 0175 | 0140 | 0175) 0178
8 13 || 0209 | 0153 | 0124 | 0131 || 0151 | 0131) 0128 | 0122/0131), 0129 | 0161 | 0139 | 0123 | 0131 | 0139
9 13 ||0172| 0131/0108} 0110|| 0127 |0138) 0157 | 0119 | 0180] 0146 | 0153| 0143/0113 0137 | 0136
10 13 || 0150 | 0160 | 0103 | 0114 || 0132 ]0176 ; 0246 | 0121 | 0189)| 0179 10162) 0194 | 0111 | 0142); 0152
11 13 || 0150 | 0150/ 0115 | 0148 || 0142 }0199 0273 | 0137 | 0322 || 0222 | 0171 | 0194 | 0125 | 0203 || 0173
105. The approximate epochs of maxima and minima for the mean positive and negative differences, the
principal being indicated by + and —, are as follow :—
Min. Max. Min Max Min. Max. Min. Max,
Nov. Dec. Jan. —1035 a.m. OSPR Mt) etc deh |) Meee eee — 0% Noon. 535 p.m. 842 PM. +2)> aM,
Feb. Mar. April, — 945 a.m. +545 P.M. 9h P.M. 15 a.m —103* a.m. 65 P.M. 8j5 P.M. +245 aM.
May, June, July, 2h P.M. +55 pM. —10h PM +2h aM — 0» Noon. 53h p.m. —95 P.M. +225 aM.
Aug. Sept. Oct. —103* a.m. +55 PM. — 935 PM 4h aM —11}5 a.m. 5h P.M. 8 PM. +35 AM,
Mean Positive Difference.
Mean Negative Difference.
106. The mean positive difference has two maxima and two minima in each quarter excepting winter ; the
principal maximum occurs between 5) and 6" p.m.; in summer the two maxima have an equal value; the
values of the two minima differ little.
107. The mean negative difference has two maxima and two minima in each quarter; the principal maxi-
mum occurs between 2h and 3" a.m. ;
in winter the two maxima differ little in value ; in the other quarters the
secondary maximum is very small compared with the other; the values of the two minima in each quarter
differ little.
108. It appears, therefore, that the principal maximum of the mean positive difference occurs at the same—
time as the secondary maximum of the mean negative difference, and vice versa.
It seems probable that if differ-
ences were taken with reference to mean wndisturbed positions, the secondary maximum would disappear m
each case; thus, if we consider that the effect of disturbance is to increase the mean vertical component to a
large extent about 6" p.m. (No. 103, 1s¢), it is obvious that both the value and the number of the negative
departures from this increased mean will be greater than if the undisturbed mean were taken as the zero, It was
accordingly found in the discussion of the observations for 1844, (pp. 388, 389), when the mean position was
employed as deduced from the days selected nearly free from intermittent disturbance, that the maximum of
-
“4
DIURNAL VARIATIONS FOR THE VERTICAL COMPONENT OF MAGNETIC FORCE. Ivil
the mean positive disturbance occurred about 6" p.m., the minimum between 11" p.m. and 8" a.m.; that the
maximum of the mean negative disturbance occurred about 2? a.m. and the minimum about 6" p.m., although
the values varied little between noon and 8 p.m.
109. The approximate epochs of maxima and minima for the mean disturbance, independent of sign, (indi-
cating the principal maximum by + and minimum by—), are as follow :—
Min. Max. Min. Max
Winter—Nov. Dec. Jan. —115 a.m. +65 pM. gh pm. 1h a.m.
Spring—Feb. March, April, —105 a.m. 53” p.m. 827 P.M. +13" am.
Summer—May, June, July, 1» p.m. 5> p.m. —105 pm. aie
Autumn—<Aug. Sept. Oct. —11) aM. 55 P.M. 83" P.M. +33" a.m.
It has been seen that the positive disturbance has its maximum about 5%—6" p.m., and the negative dis-
turbance its maximum about 2" 4.m., so it appears now that the mean disturbance, independent of sign, has a
maximum near both hours.
110. In winter the secondary maximum, about 1" 4.M., is very indistinctly marked ; in summer the second-
ary maximum, about 5” p.m., is very small compared with the other; the principal minimum occurs in winter
about 11" a.m.; that at 10" p.m. is best marked in summer. In this case also, as in the cases of the magnetic
declination, No. 45, and the horizontal component, No. 77, the diurnal variation of the magnetic disturbance
ijn summer is nearly the reverse of that in winter. The diurnal variation of the disturbance is very nearly the
same in spring as in autumn.
TABLE 54.—Variations of the Vertical Component of Magnetic Force with reference to the Moon’s
Hour-Angle for the Winter and Summer Lunations, and for all the Lunations of the Years 1844
and 1845.
Winter Lunations. Summer Lunations. All the Lunations.
1844. 1845. Mean. 1844. 1845. Mean. 1844, \" 1845. || Mean.
0-00 0-00 0-00 0-00 0-00 0:00 0-00 | 0:00 | 0:00
—0054 | +0002 —0026 | +0017 | +0007 || +0012 | —0019 | +0005 — 0007
—0086 | +0013 | —0036 } —0009 |! +0015 | +0003 | —0047 | +0014 || —0016
— 0069 | —0039 —0054 | —0014 | +0013 0000 } —0042 | —0015 — 0028
—0071 | —0029 | —0050 | —0022 | +0002 —0010 | —0046 | —0014 — 0030
—0058 | —0031 — 0044 } —0031 | —0019 || —0025 | —0045 | —0025 — 0035
| —0007 | +0002 | —0002 |} —0009 | —0001 —0005 | —0008 | +0001 — 0003
/ +0059 | +0030 | +0045 | —0018 | +0010 || —0004 | +0020 | +0021 +0020
+0107 | +0038 | +0072 | +0007 | +0020 | +0013 |. +0058 | +0030 | +0044
| +0094 | +0036 | +0065 | +0039 | +0001 +0020 |} +0067 | +0020 || +0043
| +0049 | +0021 | +0035 | +0017 | —0020 || —0001 | +0033 | +0002 | +0017
+0043 | —0014 || +0014 | +0007 | —0028 —0010 | +0025 | —0021 +0002
—0004 | —0025 —0014 | +0015 0000 || +0007 } +0006 | —0013 — 0003
111. Variation of the Vertical Component with reference to the Moon’s Hour-Angle.—There are four
independent results in Table 54, namely two for the winter lunations, and two for the summer lunations of
1844 and 1845, the others depend on these. In all the four the maximum vertical component occurs between
2 and 4 hours after the moon’s transit of the inferior meridian ; in three cases a secondary maximum occurs at,
or shortly after the superior transit,—minima occurring during the intermediate period, from 6 to 8 hours after,
and from 2 to 4 hours before, the superior transit; in the winter lunations for 1844, only the principal maxi-
mum and minimum are shewn (see the similar case for the horizontal component No. 80), and, as the variations
for this group are much greater than for any of the others, it is probable that the difference is due to disturb-
ances. See the volumes for 1844, p. 382, where the elimination of the larger disturbances leaves traces of a
secondary maximum and minimum.
112. From the means of all the winter lunations in Table 54
The vertical component is a maximum about 2 hours after the moon’s inferior transit.
Pee oa ow ohare cero ee seesseeeeeesMInIiMuM...,.....5 hours after the moon’s superior transit.
lviii GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
The means of all the summer lunations indicate that
The vertical component is a principal maximum about 3} hours after the moon’s inferior transit.
Jad hood onssiacumtaes. deeeeeetnaisen teat milanannigiies WO hours..........-.-+-...-..superior transit.
» Giarb.attatd's Boebie.s Saas chelate a secondary maximum near the moon’s superior transit. J
Seis es etal oiidea cael erica ciate aie tate aie oor minimum about 5 hours before the moon’s superior transit.
This last result serves very nearly for the mean of all the lunations in 1845, and for the mean of all the
lunations in 1844, when the larger disturbances have been rejected as in the place cited above.
MaAGneETIC Dip.
113. Observations for the absolute value of the magnetic dip were made with an instrument by Robinson in —
the years from 1841 to 1849 ; those till May 1843 were made with the instrument on a pillar near the declin- —
ometer (see Introduction, 1843, p. liv.); from June 1843 till February 1846, the observations were made in
a small wooden house erected for the purpose about 19 yards north of the Observatory dip-pillar. The obser-
vations after June 1843 were in general very unsatisfactory ; ; and ultimately, in February 1846, the observa-
tions were discontinued (see section Inclinometer, in the Introductions to the various volumes, for details. ) In
order to determine the annual change of dip, the inclinometer was placed on the original dip-pillar i in the |
Observatory in September 1849 ; previously, it was found, that both needles belonging to the instrument were —
much disfigured by rust ; the rust was removed as carefully as possible and the needles rebalanced.
114. The following are the results of the observations, which were very satisfactory :—
Sept. 284 23h Needle No. 1. Dip = 71° 15-93 E
DB CB: (1m | Wakes eee Dip = 71° 14-87 :
gga gh Needle No. 2. Dip = 71° 1696
Oa? sips! oy Hes Ne Dip = 71° 16’-27
115. The dip resulting from these observations differing to a considerable extent from that obtained previously -
in the dip-house, the inclinometer was removed to that place in order to determine the value of the difference. It
was found that the dip obtained on the Observatory pillar, was nearly five minutes less than that shewn in the
dip-house. Other observations were made immediately outside the Observatory, on the top, and at the NW.
foot of the Observatory hill, which agreed almost exactly with those made on the Observatory pillar. The
details of these obyervationd must be reserved for another occasion ; it is believed, however, that the difference
found for the first two places of observation is due to the wall of a sunk fence built of trap stones, which passes —
within about 2 yards of the instrument when in the dip-house, the top of the wall being on a level with the
surface of the ground. The following then are the means of all the observations of magnetic dip made with
the Makerstoun inclinometer ; the observations made in the dip-house between June 1843 and February 1846,
having been corrected by — 5’.
TABLE 55.—Mean Value of the Observations of Magnetic Dip.
Mean Epoch. No. of Position of Mean of
Observations.| Inclinometer. Observed Dips.
°
July —Dec. 1841 1841-8 71 25-90
Tan. Ded te42 1842-5 ares 23-95
Jan. —June 1843 1843-2 Pp 22.14
June—Dee: 1843 1843-7 20-20
Jan. —Dec. 1844 1844-5 <5 a Ses 23-69
Jan. —Dee. 1845 1845-5 P P 23-10
Jan. —Feb. 1846 1846-1 22-40
Observatory
Oct. 1849 1849-7 Dip-Pillar \ 16-00
116. The observations made in the years 1841-2—3 on the Observatory dip- pillar, give for the mean aaa
1842-5, the mean dip = 71° 24’-0; those Heap on the same pillar 1849-7, give the mean dip = 71° 16°0;
whence the change in 7:2 years = — 8:0, or = — 111 a year.
?
a
ANNUAL VARIATIONS FOR THE MAGNETIC Dip: lix
‘ 117. The observations made in different azimuths already noticed, render it probable that the dip deduced
_ above is inaccurate from instrumental causes ; the mean dip from observations in all the azimuths was less than
that from the observations in the magnetic meridian by upwards of 10’.
118. In order if possible to determine the true dip, the inclinometer belonging to the Royal Society of
Edinburgh was obtained, and observations were made with it on the Observatory dip-pillar as follow :—
Sept. 254 5h Needle No. 1. Dip = 71° 11°38
QGd RD aS Rate ye. ley pete Dip = 71° 10°83 + Mean Dip = 71° 1036
962 — 974 Needle No. 2. Dipi="71 "888
‘The instrument was not in good order and a considerable time was spent on the observations ; but .the results
‘agree very well. Observations with needle No. 2, were also made in the azimuths 30° and 120°, which gave the
following values :—
By the Formula for single Azimuths. By the Formula for both Azimuths.
Azimuth 30° Dip (1: 9-87 Azimuths 30° and 120°, Dip = 71° 4-2
i). 120° Dip = 70° 47-7
_ The observations with the Royal Society’s inclinometer in the magnetic meridian give the magnetic dip about
6’ less than those with the Makerstoun instrument. It cannot be said that the true dip for Makerstoun is yet
accurately determined, as the observations with the Royal Society’s inclinometer in different azimuths will
scarcely permit the assumption that it is free from instrumental error.
, 119. The following results are deduced from those already obtained for the horizontal and vertical components
of magnetic force. (See 1844, p. 390.) It may be remarked here, that the epochs for the horizontal component and
_ magneticdip agree very nearly in every case where both have been determined; maxima of the horizontal component
being equivalent to minima of dip, and vice versa; therefore, when investigations have not been made similar to
those for the horizontal component for the magnetic dip (such as for the mean difference or disturbance), the law
_ for the former may be assumed for the latter, and the values of the variations of dip in minutes may be ob-
_ tained approximately from the numbers for the horizontal component by multiplying the latter by 1000.
?
120. Secular Change of Magnetic Dip.—lIf we assume the secular change for the horizontal component
=+ 0:001318 (No. 52), and for the vertical component, as deduced from the years 1845-9, = — 0-001055,
_ we find the secular change of dip = — 2’-47; this is considerably greater than that obtained from the obser-
‘yations of absolute dip No. 116; since the secular change for the horizontal component must be near the
truth (N 0. 53), and that obtained for the dip, No. 116, cannot be far from it, it is probable that the secular
change for the vertical component is still considerably in error, that in fact the balance needle is still losing
magnetism.
121. Effect of Disturbance on the Yearly Mean.—From the means for the days selected as nearly free from
disturbance in the years 1844 and 1845, we find from Nos. 54 and 85, that the yearly mean of magnetic dip
deduced from the undisturbed days is less than that from all the observations by 0’15. The effect of dis-
‘turbance, therefore, is to increase the magnetic dip, although the effect on the magnetic declination is nearly
zero. (No. 38.)
122. Annual Period of Magnetic Dip.—This result depends chiefly on that for the horizontal component ;
adopting the annual period for the vertical component, deduced from the observations for the years 1843-6,
as the best representative of that variation, and employing the annual variations for the horizontal compo-
nent, deduced from the observations in the years 1843-6, 1842-5, and 1842-7, we obtain the following
numbers :
TABLE 56.—Monthly Variations of Magnetic Dip, free from Regular Secular Change.
May. June. July. Aug. Sept. Oct. Nov.
— 0-258 | — 0-256 | — 0-209 | + 0-174 | + 0-400 | + 0-331 | + 0-020
— 0-287 | — 0-355 | — 0-147 | 4+ 0-116 | 4+ 0-282/+0-211 |+ 0-056
— 0-350 | — 0-516 | — 0-278 | + 0-209 | + 0-502 | + 0-642 |+0-199
lx GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
The variations of each of these groups of years exhibit a law which may be thus stated :—The magnetic dip
as greatest near the eqinoxes, and it is least near the solstices. The variations for the years 1842—5 are perhaps —
least affected by disturbances ; for these years the two maxima have nearly equal values, but the minimum at
the summer solstice is greater than that at the winter solstice: in the variations for the years 1843-6 the two ;
minima have nearly equal values, but the two maxima are unequal, the maximum at the autumnal equinox
being greatest (See Plate VI.) : and in the variations for the years 1842-7, both maxima and minima are
unequal ; the greatest maximum occurring at the autumnal equinox, and the greatest minimum at the summer
solstice. The same results are to be obtained. for the annual period of the horizontal component, the differences
depending upon the amount of disturbance in the different groups of years.
123. When we deduce the monthly means of magnetic dip from the observations of the two component mag-
netometers, made on the days selected as nearly free from irregular disturbance, in the years 1844 and 1844,
we find the means from all the hourly observations in those years greater (+ ) or less (—) than the former by the
following quantities. (See Nos. 57 and 59.)
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec,
4+ 07158 + 0°294 +40°258 +0196 —0"037 —0'026 —0'032 + 0°060 +0038 +40°348 +0150 +0356
The effect of disturbance on the monthly mean magnetic dip is negative in the three months May to July,
and is positive in the remaining months. If these means be subtracted from those for the corresponding
months in Table 56, it will be found that the annual period from the undisturbed days has the same epochs
as that from the disturbed days. (See No. 58.)
124, Annual Variation of the Ranges of the Monthly Mean Variation of Dip—The following are the
ranges of the mean variation for each month, from four years’ observations, as obtained from Table 57.
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
P10 0872 2-06 BIG) gS geo UseyT et 404 388 2’°92' -2"39" © 1°46 1-01
The range of dip was least in February, and in the three months December, January, and February; it was
greatest in July, and in the months from May to August, the range for June being slightly less than for
May, July, and August. The following are the ranges of the mean variation, obtained from the observations
on the selected days of 1844 and 1845,
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
0°53 0'-62 185 3°27 325 3°26 3°04 3°23 3°10 «194 1881-08
The range of the nearly undisturbed mean diurnal variation is least in January, and it is nearly constant
in the months from April to September. (See No. 93.)
125. Variations of the Daily Mean Magnetic Dip with reference to the Moon’s Age.—The following num-
bers, the means for groups of days from four years’ observations, are obtained from the last column of the first
parts of Tables 28 and 45.
Moon’s Age. 144164 174204 214244 254284 294_]4 — Qa__5a 64—ga 104134
Variations, + 0°069 + 0°147 4 07034 — 07137 —0°123 — 0088 + 0°012 + 0085
These numbers shew that the magnetic dip was greatest immediately after opposition, and that it was least
immediately before conjunction.
126. Variations of the Daily Mean Magnetic Dip with reference to the Moon’s Declination —The follow-
ing numbers, also derived from four years’ observations, are obtained from the last columns of Table 28 and 49.
Day after Moon 974a__]4 a__5a d__ga a4__}94 a__)Ra a__]04 5 Sigok 4964
farthest North: 274] 24—5 64—8 94_]2 134—15 164*—19 201—22 23
Variations, — 0043 +4 0008 + 0-072 + 0:004 — 0051 — 0027 + 07-001 +4 0-038
It appears therefore, that a minimum of magnetic dip occurred when the moon was farthest north, another
minimum occurred when it was farthest south, and maxima occurred when the moon was near the equator.
This law is exactly the same as that for the annual variations. No. 122.
127. Monthly Variations of the Range of Dip.—These and the analogous results for the mean difference
cannot be derived from Tables 29, 30, and 46, 47, but require the conversion of all the hourly observations
DIURNAL VARIATIONS FOR THE MAGNETIC DIP. xi
into dip, reductions which have not been performed, the laws for the dip however are quite the same as those
for the horizontal component, to which we refer. See also No. 141.
Diurnal Variation of the Magnetic Dip.—tThe following Table is deduced from Tables 31 and 48.
TABLE 57.—Diurnal Variations of Magnetic Dip for each Month, as deduced from the Regular Daily
Observations made during the Four Years 1843 to 1846.
March.| April.| May.
1-743
1-782
1-899
1-989
2-170
2-200
2-373
2-840
3-455
3:744
3-817
3+353
2-633
1-762
1-260
0-935
0-189
0-000
0-107
0-138
0-739
1-251
1-447
1-693
KH OOMDNAUFPwWNrH OS
—
128. The following are the approximate epochs of maxima and minima in apparent time as deduced from
Table 57, distinguishing the epoch of the principal maximum by + and of the principal minimum by — ,
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
h. m. h. m. h. m. hmhm hm hm ih m. h. m. h m. h. m. h. m.
Max 2220 +22 5 +22 5 42212 22 5 2130 2145 2120 42155 42215 +422 40 +422 55
Min. 310 — 230 - 350 —545 545 640 5655 5 25 — 4 35 8 15 5 55 5 55
Max. +14 0 12 45 14 0 14 30 Bis nace zee 14 35 12 25 10 30 11 15
Min —17 40 —-18 40 17 50 17 0 560 fc aoe sch 17 5 -16 25 —-1815 —-18 15
| These epochs are very nearly the same as those obtained for the horizontal component No. 69. The
diurnal variation of magnetic dip at Makerstoun has only one maximum and minimum in the four months
| May to August, and it has two maxima and two minima in the remaining eight months. The morning
| minimum near 6° a.m., is the principal minimum in the four months October to January, in February the two
minima are equal ; in the other months the principal or only minimum, occurs near 6" p.m.; the principal
‘maximum of dip occurs in each month with the exception of January near 10° a.m. It is only in the four
winter months November to February that the 2" a.m. maximum is well marked. The variations of the epochs
of maxima and minima will be found with most accuracy from Table 58, which contains the diurnal variations
for groups of months.
’
lx GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
TABLE 58.—Diurnal Variations of Magnetic Dip for different periods, deduced from Table 57.
Six Months.
Twelve
March
Bis | Months.
Aug.
~ 0-315
| — 0-095
+0-116
+0-053
+0-154
+ 0-248 |
+0-404 |
+0:839
+1:502 |
+1-912
+1-971
+1-519
+ 0-822
+ 0-055
—0-475
—0-874
—1-151
— 1-378
— 1-365
— 1-253
— 0-963
— 0-668
— 0-596
— 0-462
129. The approximate epochs of maxima and minima in apparent time, from Table 58, are :—
Dec. Jan. Feb. March, April. May, June, July, Aug. Sept. Oct. Nov.
Maximum, +101 20™ a.m. +105 15™ a.m. 9h 50™ a.m. 9h 35™ a.m. +10b 0™ am
Minimum, 2h 50™ p.m, —5> Om p.m. 65 20™ p.m, 54 30™ p.m. — 5) 35™ p.m
Maximum, 2h 5™ a.m. 2h 10™ a.m. tet eee eee eee eee wee eee aee eens 1 55" ~wome
Minimum, AL 5h 45™ aM. Bee Coens COOOEE sige tainiahelsatieeteieiste 4h 55m A.Mea
a
The principal maximum, near 10 4.m., occurs earliest in July and August, and latest in December to Feb-
ruary : the afternoon minimum occurs earliest in the three winter months, and latest in May and June: the
other maximum and minimum occur earliest in the months September to November. (See the Continuous
Curves, Plate IV., where it is to be remembered that the apparent minima of the curves are the maxima of dip.) —
The following Table contains the diurnal variations for the days selected as nearly free from intermittent dis-
turbance. r,
om ;
130, The approximate epochs of maxima and minima in apparent time for the undisturbed diurnal varia-
tions, are as follow :—
bus
Dec. Jan. Feb. March, April. May, June. July, Aug. Sept Oct. Nov.
Maximum, +10245™4.m. +105 20™ 4.m. 9» 50™ a.m. 9h 45™ 4m. +105 15™ a.m. ~
Minimum, 55 95m pm... — Fh 5m pm. 6h 30™ p.m. 72 Om p.m. — 65 45™ pM.
Maximum, 1h 35™ a.m. 32 DOM; Kents oy nip Seereemeeee BAY wilt (rie cecetaebeae meee 12 55™ aM.
Minimum, — 6) 25™ a.m. SD LS ater. yriiiyemewacegte idaaed . 0) vn stake eaeaeee be 55. 5™ ae
In the undisturbed, as in the disturbed variations, the principal maximum occurs earliest in July and
August, and latest in December to February ; but, unlike the disturbed variations, the afternoon minimum
oceurs latest near the equinoxes ; it occurs rather earlier at the winter than at the summer solstice. (See the
Dotted Curves, Plate IV.)
?
DIURNAL VARIATIONS FOR THE MAGNETIC Dip. Ixili
_ TABLE 59.—Diurnal Variations of the Magnetic Dip for different Periods, deduced from Days selected
as free from Irregular Disturbance in the Years 1844 and 1845.
Six Months.
March. May. ‘ iti . Twelve
April. LE A af Months.
KHOOMDNIANHwWH Ke ©
—
TABLE 60.—Differences of Disturbed and Undisturbed Diurnal Variations of Magnetic Dip, as deduced
from Tables 58 and 59, exhibiting the Effect of Irregular Disturbance on the Hourly Mean Position.
Six Months.
Twelve
Months.
KCOONOAUARWNH ©
—
MAG. AND MET. OBS. 1845 anv 1846. q
lxiv - GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
131. Diurnal Variation of the Effect of Disturbance on the Magnetic Dip—A remark, similar to that
made No. 72, with reference to the horizontal component, will apply to Table 60. The conclusions from this
Table are as follow :—
lst, The greatest effect of disturbance in increasing the magnetic dip occurs
In Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct Nov.
1215 a.m. 13° a.m. 95 a.m. 9 pm
2 5 p.m. and 83 a.m. 7
AT { 935 a.m. 83> a.m. a NS a 9» p.m. 10" p.m.
There are two epochs in May and June at which the positive effect of disturbance is a maximum, and there —
are two similar epochs for each group of months, for one of which either the positive effect is a secondary maxi- —
mum, or the negative effect is a minimum ; the times of these are given above, in the second line.
2d, The greatest effect of disturbance in diminishing the magnetic dip occurs
In Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov
4" pM. 45 pM. 5) P.M.
h h : h h
About {6 A.M, and 3" p.m. ren een 124py, 82 AM and 3" pm,
In the winter groups there are two nearly equal maxima for the negative effect of disturbance, and in each of
the others there is, besides the principal maximum, either a secondary maximum of the negative effect, or a
minimum of the positive effect ; the times of these are given above in the second line.
3d, The effect of disturbance upon the hourly mean magnetic dip is zero
In Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov.
About 104 a.M., 75 P.M., 34 A.M. 7» a.M., 105 a.M., 75 P.M. Noon, 95 p.m. 15 p.m., 8 Pm. 10® a.m.,65 P.m., 1b A.M, ’
The best defined hours are those from 6" p.m. to 95 p.m., and from 10” a.m. to 1" p.m.
See No. 76 for the probable law of mean disturbance for the magnetic dip, substituting for positive distur-_
bance of the horizontal component, negative disturbance of dip, and vice versa.
TABLE 61.—Variations of the Magnetic Dip with reference to the Moon’s Hour-Angle for the Winter
and Summer Lunations, and for all the Lunations of the Years 1844 and 1845.
Winter Lunations. Summer Lunations. All the Lunations.
1844. 1845. ' : | 1845. Mean. 1844. 1845. || Mean.
+-021
-123
+-071
+:018
+:084
+ -024
+-001
— 037
—-090
—-027
+:011
+:058
-045
+154
-071
-006
-170
031
-096
075
-042
+ -085
+-106
+ -057
|
o
=
bo
Weare!
thal ag ie
tele
+
=)
~1
ny
132. Variations of the Magnetic Dip with Reference to the Moon's Hour-Angle—The four independent
columns of Table 61, give results quite analogous to those obtained for the horizontal component of magnetic
force, No. 79: the results for the winter lunations of 1844, and for the summer lunations of both years, agree
very nearly with that for the mean of both years in the last column of Table 61,—which may be stated as
follows :—
The age es is a minimum about 1 hour after the moon’s inferior transit.
trtesressereeeseesseeeee moaximum about 33 hours before the moon’s superior transit. ¢
minimum about 22 hours after the moon’s superior transit.
maximum about 8 hours after the moon’s superior transit.
ANNUAL VARIATIONS OF THE TOTAL MAGNETIC FORCE. Ixv
The winter lunations for 1844 agree with this result, in having a minimum immediately after the inferior
ransit, but not otherwise : this difference, it is considered, is due to disturbances. (See No. 80.)
®
ToTaL MAGnetic FORCE.
; 133. Absolute Value of the Total Magnetic Force.—The absolute value of the total magnetic force de-
duced from the value of the horizontal component, and the magnetic dip, as in No, 81, is as follows :—
Total magnetic force at Makerstoun for the mean epoch 1845 = 10-5267.
134. Secular Change of the Total Magnetic Force.—The determination of this depends chiefly on the balance
indeed it is probable that the total force remains nearly constant, and this is the more likely the nearer the
‘secular change deduced for the magnetic dip is considered to be to the truth. (See No. 116.)
135. Effect of Disturbance on the Yearly Mean Value of the Total Magnetic Force-—By Nos. 54 and 85,
we find that the yearly mean deduced from the selected undisturbed days, is greater than that obtained from all the
_ observations by 0:000045, the total force here and in the following discussions being considered equal to unity.
} 136. Annual Period of the Total Magnetic Force,—This result depends chiefly on that for the vertical com-
ponent and is entitled to the same weight. The following are the variations of the monthly means of the total
force, deduced from the observations of the balance and bifilar magnetometers for the four years 1843-6.
See Nos. 56 and 87.)
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
+099 —013 —074 —075 —034 +120 +052 —001 —049 —087 +011 4048
From these numbers, the total magnetic force at Makerstoun is a maximum about the solstices, and a mimimum
mmediately after the equinowes (See Plate VI.)
137. The monthly means deduced from all the hourly observations in 1844 and 1845, were greater (+ ) or
Tess (—) than those obtained from the days selected as nearly free from disturbance by the peas quantities,
(See Nos. 57 and 89.)
i: efix. Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dee.
009 +001 —106. —060 —062 —003 —037 —061 .—052 =078 —008» 4002
The effect of disturbance on the monthly mean was nearly zero in the months of February, June, and
December, and it was greatest in March and October. When these numbers are subtracted from those in
‘No. 136 it is found that the annual period obtained from the undisturbed days in each month, has the same
138. Annual Variation of the Ranges of the Monthly Mean Diurnal Variation of the Total Magnetic
F The following are the ranges of the mean diurnal variation for each month, as obtained from Table 62,
deduced from four years’ observations.
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
319 291 612 821 701 546 ~=— 668 738 715 521 443 298
greatest in April and August: the ranges for March and September were greater than the range for June.
The following are the ranges of the mean variations obtained from the selected days of 1844 and 1845.
Prefix.
I Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
0-000
112 151 277 398 489 449 448 389 409 321 176 154
he range of the nearly undisturbed mean diurnal variation was least in January 1844-5, and it was
test in May, but it is probable that the range is nearly constant while the sun is north of the equator, and
hat the differences exhibited here are due to the greater or less amount of disturbance remaining in the
selected days. (See Nos. 92 and 93.)
139. Variations of the Daily Mean Total Magnetic Force, with Reference to the Moon’s Age.—The fol-
lxvi GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
lowing quantities, the means for groups of days from four years’ observations, are obtained from the last colum
of the first parts of Tables 28 and 45. (Prefix 0-000.)
Moon’s Age, 144_164 174— 204 214—244 254284 29414 2454 6b— ga 104—13
Variations, — 024 + 007 + 024 + 011 +001 + 008 + 009 — 034
The total force, therefore, is least near opposition, and it is greatest near the quadratures. (See No. 96, 1st.)
140. Variations of the Daily Mean Total Magnetic Force, with Reference to the Moon’s Declination,
The following variations are derived from the final columns of Tables 28 and 45. (Prefix 0-000.)
pee be beet 74a 2a_54 6484 94124 J34_154 164194 204994 934 964
Variations, + 024 — 004 —016 — 010 + 017 — 004 — 001 — 005
These variations indicate that the total force is a maximum when the moon is farthest north, and als
when it is farthest south, and that is a minimum between these epochs. This result is quite analogous
that for the sun’s position in declination (see No. 136). In both cases, the total force is greatest when the body —
(sun or moon) has its greatest north and south declinations, and it is least during the intermediate positions,
or when the body is near the equator.
141. Monthly Variations of the Range of the Total Force.—This law is the same as that for the vertical
component (No. 97), but has not been deduced for the total force, for the reason given No. 127. It may be
stated generally, whether the position of the sun or the moon be under consideration, that the diurnal range o
all the magnetic elements is greatest when the body is rather north of the equator, and that the range is least when —
the body is farthest south and farthest north. It has been found, generally, that when undisturbed mean ~
variations are examined, the diminution of diurnal range, when the sun is most northerly, disappears, and
it is probable that the same would be true with respect to the moon; the excess of range, when the bodies
are near the equator, being due to the greater amounts of disturbance which occur at these times,
(See No. 23.)
TABLE 62.—Diurnal Variations of the Total Magnetic Force for each Month, as deduced from the
Regular Daily Observations made during the Four Years 1843 to 1846.
—OOnmDNIauarkhwnwne ©
—
DIURNAL VARIATIONS FOR THE ToTAL MAGNETIC FORCE. Ixvul
142. Diurnal Variation of the Total Magnetic Force.—Table 62 has been computed from Tables 31 and
48. The following are the approximate epochs of maxima and minima in apparent time, distinguishing those
of the principal maximum by +, and of the principal minimum by —.
q
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
h. m. h. m. h. m. h. m. h. m. h. m, h. m. h. m. h m. h. m. h. m. h. m.
Max. +535 +5 0 +5 5 +555 +545 4630 +5385 +535 +455 +340 + 625 + 6 20
Min. —14 5 -14 0 —13 45 —-13 0 —14 35 14 15 1440 -14 5 —13 35 -1615 -—12 45 —14 45
_ Max. HG) 3) 19 15 19 30 19 0 18 40 18 35 18 30 18 35 18 50 19 45 18 50 19 5
Min. 22 0 21 55 22 30 22 45 —22 45 -23 0 —22 465 22 20 21 35 22 35 —22 50 —22 15
The principal maximum of the total magnetic force occurs between 3" 40™ and 65 30™ p.m. in each
month of the year ; it occurs latest in June and November ; it occurs earliest in February and March, of the
_ first six months, and in October and_September of the last six months of the year. The principal minimum
occurs near 2" a.m. in each month, with the exceptions of June and July, in which months it occurs near 11"
a.M.; in May, November, and December, the two minima are nearly equal. The secondary maximum occurs
between 63" and 73" a.m., and it is best marked in the months of March, April, and May, August, and Sep-
tember.
TABLE 63.—Diurnal Variations of the Total Magnetic Force for Different Periods, deduced from
Table 62.
Six Months.
March. May. July. pees x Be, Twelve
{ April. June Aug, a ea ste Months.
4 Feb. Aug
0 0:00 0:00 0°00 0:00 0:00 0:00
— 0236 | —0123 — 0154 —0180 —0135 —0171 — 0154
—0249 | —0168 —0190 | —0192 — 0143 — 0202 —0173
— 0288 —0180 | —0218 — 0198 —0166 | —0229 —0198
— 0207 —0166 | —0197 — 0182 —0145 — 0190 — 0168
—0180 | —0124 | —0158 — 0169 — 0127 —0154 —0141
—0125 | —0089 —0148 —0132 — 0098 —0121 — 0110
— 0067 —0059 | —0117 — 0096 —0070 | —0081 — 0076
— 0046 | —0065 —0120 | —0075 — 0056 — 0077 — (067
—0066 | —0116 | —0160 — 0085 — 0063 —0114 — 0089
-0111 —0178 | —0202 | —0114 — 0087 — 0164 — 0126
—0151 — 0230 | —0223 — 0124 —0099 | —0201 -—0151
| — 0148 —0230 | —0219 — 0095 — 0072 — 0199 — 0136
013 | —0021 —0102 | —0163 —0148 — 0001 —0011 — 0138 — 0074
1 13 | +0033 0000 | —0060 — 0021 +0098 +0065 — 0027 +0019
Zlie +0085 | +0130 | +0051 +0106 | +0184 +0134 | +0096 +0115
3 13 | +0133 | +0236 | +0167 | +0258 +0285 +0209 | +0220 +0214
413 | +0144 | +0305 | +0256 | +0361 +0313 +0228 | +0301 +0264
5 13 | +0152 | +0408 | +0358 | +0441 +0313 +0232 | +0402 +0317
613 | +0161 +0399 | +0373 | +0441 +0284 +0222 | +0404 +0313
7 13 | +0142 | +0325 | +0356 | +0378 | +0209 +0175 | +0353 + 0264
8 13 +0107 | +0210 | +0264 | +0265 | +0114 +0110 | +0246 +0178
9 13 +0056 | +0074 | +0141 +0097 | +0020 +0038 | +0104 +0071
10 13 | —0020 | —0045 | +0048 | +0018 — 0055 —0037 | +0007 — 0015
13 —0074 | —0074 | —0038 — 0096 —0121 — 0097 — 0069 — 0084
143. The means for groups of months having been obtained, as for the other magnetic elements, we find
the approximate epochs for the mean diurnal variation in apparent time as follow :—
MAG. AND MET. oss. 1845 anp 1846.
Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov.
Maximum, +65 10pm. + 55 25mpm. + 55 45™pm. + 52 85m™pm. + 45 50™ Pm.
Minimum, —2h 10™ a.m. — 2» 10™ a.m. 15 45™ aM. — 2» 10™ a.m; — 25 20™ a.m.
_ Maximum, 72 10™ aM. 7h 5™ a.m, 6" 35™ aM. 65 35™ a.m. 7> 35™ a.m.
Minimum, 9h 55™ a.m. 105 35™ a.m. —10" 45™ aM. —105 35™ a. 105 20™ a.m.
T-
Ixvi GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
In the disturbed diurnal variation of total magnetic force, the principal maximum occurred latest in the
quarter December to February, and earliest in the quarter September to November: the epoch of the
after-midnight minimum varied little, being slightly nearer midnight in May and June than in the other
groups ; the secondary maximum occurred earliest in May and June, and latest in September to November ;
and the forenoon minimum occurred earliest in the quarter December to February, and latest in May and June.
In May and June, therefore, the one minimum occurred nearest noon, the other nearest midnight. (See
the Continuous Curves, Plate V.)
TABLE 64.—Diurnal Variations of the Total Magnetic Force for Different Periods, deduced from
Days selected as free from Irregular Disturbances, in the Years 1844 and 1845.
we +, poet | Six Months.
= re March. May. July. SE SS
saad aes April. June. Aug. bse || Sept.to | March Months.
Feb. to Aug.
h; m. 0-00 000 0-00 0-00 0-00 | 0-00 0-00 0-00
12 13 —0016 | —0029 | —0031 | —0032 | —0051 | —0033 | —0031 — 0034
13 13 -—0037 | —0043 | —0039 | —0047 | —0059 | —0048 | —0043 || —0045
14 13 —0041 | —0027 | —0034 | —0049 | —0049 | —0045 | —0037 || —0040
15 13 —0038 | —0023 | —0014 | —0027 | —0042 | —0040 | —0021 — 0030
16) 13 —0031 | —0025 | +0011 | +0003 | —0032 |} —0031 | —0004 || —0018
17 13 — 0022 | —0004 | +0021 | +0010 | —0022 | —0022 | +0009 || —0007
18 13 —0022 | +0010 | +0012 | +0009 | —0023 | —0022 | +0010 || —0006
19 13 —0023 | +0009 | —0016 | —0030 | —0024 | —0023 | —0012 || —00i8
20 13 —0025 | —0019 | —0077 | —0103 | —0063 | —0044 | —0066 || —0055
21 13 —0045 | —0080 | —0162 | —0169 | —0107 || —0076 | —0137 || —0106
22.13 —0061 | —0151 | —0229 | —0204 | —0146 —0103 | —0195 —0149
23 13 —0056 | —0182 | —0251 | —0218 | —0125 | —0090 | —0217 || —0154
0 13 —0028 | —0181 | —0200 | —0176 | —0089 | —0058 | —0186 — 0122
1 13 +0017 | —0100 | —0105 | —0084 | —0002 | +0007 | —0096 | —0044
2 13 +0053 | —0005 | —0024 | +0013 | +0075 | +0064 | —0005 || +0029
3 13 +0071 | +0069 | +0064 | +0108 | +0126 | +0098 | +0080 | +0089
4 13 +0075 | +0113 | +0139 | +0157 | +0152 | +0113 | +0136 || +0125
5 13 +0069 | +0143 | +0201 | +0196 | +0140 | +0104 +0180 | +0142
6 13 +0059 | +0145 | +0215 | +0197 | +0126 | +0092 | +0186 | +0139
7 il} +0048 | +0137 | +0199 | +0176 | +0103 | +0075 | +0171 _ +0123
8 13 +0039 | +0105 | +0160 | +0145 | +0086 | +0062 | +0137 | +0099
9 13 +0032 | +0080 | +0106 | +0086 +0051 | +0041 | +0091 | +0066 i
10 13 | +0016 | +0050 | +0045 | +0042 | +0016 | +0016 | +0046 | +0030
11 13 | —0014 | +0008 0000 | —0004 | —0036 | —0025 | +0001 | —0012
144, When we consider the diurnal variation, as deduced from days selected as nearly free from intermit- —
tent disturbance, and as exhibited in Table 64, and in the dotted curves, Plate V., we find the approximate epochs
in apparent time as follow :—
Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov,
Maximum, + 45 O™ p.m. + 5) 40m p.m, + 6h Om p.m. 4+ 5h 35™ p.m. + 45 15m pM.
Minimum, 1» 40™ a.m. 1” 10™ a.m. 1h 30™ a.m. 15 40™ a.m. 15 25™ aM.
Maximum, 5» 35™ a.m, 6> 45™ a.m. 5 15™ aM. 5» 35™ a.m, 65 20™ a.m,
Minimum, —10"5 35m™am. —11" 45™,4.m. —10" 55™ am. —105 55™ a.m. —10h 30™ am.
The undisturbed diurnal variation of the total magnetic force differs considerably from that affected by dis-
turbances, as may be seen at a glance in Plate V.; the whole variations of the epochs of maxima and minima,
with season, are different from those obtained, No. 143. In each group of months, the forenoon minimum is
the principal, and the after-midnight minimum is quite secondary. The principal maximum occurs earliest in
winter, about 4" p.m., and latest in May and June, about 6" p.m.; the principal minimum occurs earliest —
in the six months, September to February, and latest in March and April: the secondary maximum occurs —
nearest noon, and the secondary minimum nearest midnight, in the equinoctial months. =
DIURNAL VARIATIONS FOR THE TOTAL MAGNETIC FORCE. lxix
TABLE 65.—Differences of Disturbed and Undisturbed Diurnal Variations of the Total Magnetic Force,
as deduced from Tables 63 and 64, exhibiting the effect of Irregular Disturbance on the Hourly
Mean Positions.
Six Months.
Twelve
Months.
=—OOCOOANOUR WNW KH ©
—
145. Diurnal Variation of the Effect of Disturbance on the Total Magnetic Force. The remark made
| No. 102, for the vertical component, will apply also to the following conclusions obtained from Table 65.
1st, The greatest effect of disturbance in increasing the total magnetic force occurs
In Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov.
About 6» 30™ p.m. 5” 30™ p.m. 6" 15™ p.m, 5» 40™ p.m, 55 10™ p.m.
The hours, it will be seen, agree very nearly with those found as the epochs of the maximum total force in the
disturbed diurnal variation. The maximum positive effect of disturbance on the total force, occurs latest near
the solstices and earliest near the equinoxes.
2d, The greatest effect of disturbance in diminishing the total magnetic force occurs
In Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov.
About 2h O™ aM. 2h 15™ am. 3h Om a.m. 25 45™ aM. 25 10m a.m.
| These hours are nearly the same as those for the after-midnight minimum of the diurnal variation; the
' difference is greatest in the summer months when the maximum negative effect occurs latest.
3d, The effect of disturbance on the total magnetic force is zero
In Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Noy.
Mout f 10® 45™ a.m. 10® 15™ a.m. 105 10™ a.m. 112 15™ aM. 9" 45m am.
ae gh 40™ p.m. 9210m™p.m. 102 15™ p.m. 930m pm. 8" 45m pm.
The one of these epochs is nearly the same as that of the principal minimum in the undisturbed diurnal varia-
tion ; the other occurs about twelve hours after.
Ixx GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
TABLE 66.—Variations of the Total Magnetic Force with reference to the Moon’s Hour-Angle fo
the Winter and Summer Lunations, and for all the Lunations of the Years 1844 and 1845.
Winter Lunations. Summer Lunations. All the Lunations.
1844, 1845. : : 1845. . . 1845.
0000 0-000 i 4 0-000 i 0-000
— 055 +011 +006
-—091 +030 +028
— 068 5 +020 —015
— 068 +001 —015
— 052 — 036
—010 +002
+066 +020
+106 +027
+084 —003
+054 — 028
+045 5 — 039
— 006 — 006
Se ee ee ee ee
146. Variation of the Total Magnetic Force with Reference to the Moon’s Hour-Angle.—Of the four indepen- z
dent results in Table 66, that for the winter lunations of 1844 has the greatest range, and only one maximum
and minimum, the maximum occurring about 2 hours after the moon’s inferior transit, and the minimum about
24 hours afters the superior transit : the three other results shew two maxima and two minima as follow :—
A maximum from 2 to 4 hours after the moon’s inferior transit.
A minimum from 4 to 23 hours before the moon’s superior transit.
A maximum from 0 to 24 hours after the moon’s superior transit.
A minimum from 6 to 8 hours after the moon’s superior transit.
In the mean of all, as shewn in the last column of Table 66, the first minimum and second maximum noted above,
are scarcely visible, owing to the effect of the great range of the exceptional result for the winter lunations of
1844. The epochs from the means of all are—
The maximum of total force 23 hours after the moon’s inferior transit.
AU TAMA donsanninabenr 2 hours before ............ superior transit.
AA FAXES, 55 3 ancien hes Ce 9 superior transit.
The wMMMUM: 2... 606006 8 hours after ............ superior transit.
It is probable that the mean of all the lunations is vitiated by the winter lunations of 1844, and that the
epochs given above for the remaining lunations of the two years are near the truth.
COMBINED MOTIONS OF THE MAGNETIC NEEDLE.
147. Motions of the North End of a Magnetic Needle supposed freely suspended in the direction of the Magnet .
Force.—These motions have been represented in Plates VI.-VIII. by projecting the variations of dip, given
the previous Tables, as ordinates to the abscissee deduced from the variations of declination for the same epochs
multiplied by the cosine of the dip (=0-32). As great care has been bestowed on the determination and veri- ‘
fication of the coefficients of reduction for the bifilar and balance magnetometers, upon which the element
dip depends, it is conceived that considerable confidence may be placed in the accuracy of these figures as ree
presentatives of the motions of the north end of a needle supposed freely suspended in the direction of dip at
Makerstoun. No attempt has been made in these discussions to introduce theoretical views, but s considera f
of the figures in the Plates will probably show the futility of many of the theories brought forth to explain the
motion in declination. - |
148. Annual Motions.—The annual motion deduced from the observations of the three magnetometers for the
four years 1843-6 is shown in figure A, Plate VI. In order to exhibit a more symmetrical form of the annu
COMBINED MoTIONS OF THE MAGNETIC NEEDLE. Ixxi
‘motion, the magnetic dip, deduced from the observations of the bifilar magnetometer for the years 1842-5 and
‘the balance magnetometer for the years 1843-6, has been employed to construct figure B ; the same declination
being used as in figure A. For both figures the monthly mean values for the three magnetometers have been
obtained from the curves (Plate VI.) passed freely through or among the projected points.
149. From near the vernal till the autumnal equinox the annual motion forms the half of an ellipse whose
7 ‘major axis, passing at the vertex through June, makes an angle of about +1 1°in figure A and of + 16°in figure
B with the projection of the magnetical meridian. At the autumnal equinox the north end of the needle again
ascends till the winter solstice, after which it descends till the vernal equinox. In its descent, the north ead of
‘the needle having crossed its previously ascending path, it forms a loop which, when tintwisted and continued
‘downwards from the equinoxes, completes the ellipse ; the portion formed by the loop having almost exactly the
same perimeter as that regularly formed when the sun is north of the equator; the completed portion is indi-
cated by dotted lines in figures A and B. It does not seem improbable that in southern latitudes the figure
will be inverted, and that it will be a simple ellipse near the equator.
150. Monthly Motions.—The motion corresponding to the moon’s varying phase has not been projected, chiefly
“because of the irregularities still existing in the result of the four years’ observations for the magnetic declina-
tion, the epoch of minimum being ill-determined ; it is conceived that the figure is a simple ellipse with its
major axis in the astronomical meridian, the northern extremity being at conjunction, the epoch of minimum
dip, and the southern extremity at opposition, the epoch of maximum dip ; this, however, is doubtful.
151. The motion for the moon’s position in declination has been obtained in the following manner :—Hav-
ing first projected the means of magnetic declination for each three days of the moon’s position in declination, as
obtained from the Tables for the years 1843-6, the day after the farthest northerly position being the abscissa,
a curve was passed freely among the points ; the values of the ordinates at the points of intersection by the
curve were then taken as the interpolated values of magnetic declination for the corresponding abscisse : a
_ similar operation was performed for the magnetic dip. In both cases very satisfactory curves, agreeing nearly
with the true points, were obtained. These values are projected in figure C, Plate VI. From this figure the north
end of the dipping-needle commences its ascent about two days after the moon is north of the equator, attains
its highest point about two days after the moon is farthest north, and afterwards it descends till the moon is
again near the equator; thus forming a figure like a portion of an ellipse with its vertex about one day after
the moon is farthest north, the major axis making an angle of about — 30° with the magnetic meridian. It
will be remarked that so far this motion is quite similar to that for the sun’s position in declination, with
the exception of the axis of the figure being on the opposite side of the magnetic meridian ; when we trace the
_ figure farther the analogy still subsists ;—as the moon proceeds south of the equator the north end of the needle
again ascends till the moon is farthest south, thereafter descending, and, in crossing its previously ascending path,
a loop is formed lying partially out of the principal figure, as in the case of the annual motion.
152. The correspondence of the two results gives a great weight to the accuracy of both; this will be more
evident when it is remembered, that the whole motion of the dipping-needle for the moon’s varying declination is
included by a small circle with a diameter of little more than one-tenth of a minute of space, and, that no obser-
vation in the sixty thousand employed for this result has been rejected, however greatly affected by disturbance ;
although the graphic interpolation to remove slight irregularities may be considered an equivalent operation.
_ _ 158. Diurnal Motions. —The monthly mean diurnal variations for the magnetic declination and magnetic dip
in 1 Tables 12 and 57; still present ee aees epeee fr ‘om 10° p.m. till 45 a.m., the hourly positions for
of raip from about 1" p.m. till 95 or 108 p PM., after which it turns westwards, and begins to ascend about 4" a.m.,
crossing near its position at 6" p.m., thus forming an eastern loop, which is small compared with the western
‘loop, excepting in Dace cine After 6" a.m., the north ond of the needle having moved a little westwards,
about 115 a.m. till it meets the position of 15 p.m., tht completing the western loop. The eastern ne
is not formed in March, the north end of the needle not rising sufficiently high to cross the afternoon
track. The change in the figure from February to March is very great ; in April and May the remains of the
eastern loop are still visible, but in June and July its position is indicated by a simple inflection in the figure ;
Jin August and September the germ of the eastern loop becomes more distinct, and in October the loop is
actually formed. The transition in form from autumn to winter is quite gradual, unlike that from winter to
MAG, AND MET, oBs. 1845 anp 1846. s
Ixxi GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
spring. In the winter months, the principal or western loop is formed by the motion from 8" a.m. till 5" p.m, ;
in the months from April to August, three-fourths of the whole diurnal motion occur between 6" 4.m. ani
6" p.m., the remaining fourth forming a slightly inflected side to each of the figures: it is this side which is
gradually twisted up to form the eastern loop of the winter months. The figures for means of groups of —
months, as in Tables 13 and 58, have been projected in Plate VIII. on a larger scale, the diurnal mo-
tions from the days selected as nearly free from irregular disturbance have been projected with dotted outlines —
along with the others. In these figures the actual values in Tables 13, 14, 58, 59 have been employed. In
the winter months the undisturbed diurnal variation presents a series of convolutions instead of the easterr
loop, and in the other months the general form of the figures is not much altered. .
155. It is evident that no proper comparison can be made of the areas of these figures, on account of the
involved forms in the winter months; the areas, however, of the figures from April to August, differ ve
little,*
156. Perimeters of the Figures.—The twisting of the perimeters, which renders a comparison of the areas of _
little value, does not appear to affect the length of the motion, and this therefore seems a fair subject for ex-
amination. The following are the values of the angular motion, or length of the perimeter, for each month, as
obtained approximately from Plate VII.
Jan, Feb. March, April. May. June. July. Aug. Sept. Oct. Nov. Dec, |
5°60 6°16 9’-22 12’-18 12°04 12°00 11°56. 11°64 10°48 9°78 7°22 5°Sam
December and January shew the least perimeters, April, May, and June, the greatest, though the perimeters — |
for the months from April to August are nearly constant.
157. The following are the approximate perimeters of the five independent figures of Plate VIII. :—
Dec.—Feb. March, April. May, June, July, Aug. Sept.—Nov.
Mean of all, 6”19 11.58 11’-88 11"92 9-04
Mean of undisturbed days, 4°34 9’°86 10°68 11-28 776
the monthly figures of Plate VII., we find that, on the whole, they follow i the same law, that indica |
in the following numbers, which are the means of the motions from the 12 separate months, and from other
groups of months.
Means from Means from
ae AA see vt 1) Noaaae paoe
3 ontinuous otte : ontinuous otte
Figures. Figures. Figures. EABPEee. Figures. | Figures,
hay eaihe
12—13 0-19 0-10
13—14 +23 10
14—15 +25 14
15—16 +22 18
6—17 +24 24
17—18 +25 23
18—19 -37 28
19—20 -58 53
20—21 -61 58
21—22 -69 -76 . : : CHE
22—23 91 +85 . c : firs
23— 0 -70 -67 . 11—12 : +22 16
* It may not be unimportant to remark here, that the processes usually adopted in order to determine the epochs of maxim
and minima for the separate elements of declination and dip, are not strictly accurate; and that is the case whether the process b e
one of interpolation from graphic projection, Where the time is the abscissa, or one of computation, where the variable is a func-
tion of the hour angle. This is evident, when we examine the figures in Plates VII. and VIII., where the dip and declination 3
the co-ordinates. The error, however, will not affect any of the comparative conclusions for thee elements in the previous pages.
A similar exception may be taken to the accuracy of comparisons of areas of declination curves, where time is the abscissa.
CoMBINED MOTIONS OF THE MAGNETIC NEEDLE. Ixxill
i 159. These numbers give the following curious result ;—That the velocity of motion of the north end of a
magnet freely suspended in the direction of the magnetic force is a maximum when the sun makes its superior
os of the magnetic meridian (between 10" and 11” a.m.), and a minimum when it makes its inferior transit of
a same meridian (between 10" and 11" p.m.). This result is the more curious that the epoch of the minimum
-yelocity of the diurnal motion is an epoch of maximum disturbance, and, im as far as the declination is con-
160. When we compare the results for the irregular disturbance, with reference to the separate elements
of magnetic declination and magnetic dip (see horizontal component), with the velocities of motion as deduced
3 these figures, we find, that when the diurnal motion is most rapid the departures from the direction of that
| motion are least, and when the diurnal motion is slowest the irregular departures from the hourly mean position are
greatest,
161, It is scarcely possible to connect the previous facts of area, perimeter, or velocity of motion with the
aws of variation of temperature. In the mean for the whole year, the temperature changes most rapidly between
and 9 4.m.; but it changes with nearly equal rapidity between 5" and 6? p.m. There is no corresponding
act in the previous numbers. When we compare the variations of temperature with the variations of position
for the suspended magnet in the summer months, we find the difference between the two classes of facts even
more marked: in summer, the temperature changes most rapidly about 7" a.m. and 7) p.m., the change for
ay, June, and July, from 6"—8" a.m. being +3°80, and from 62-8" p.m. being —3°-54; for the same
| months the mean angular motion of the needle from 6"—8" a.m. =1’-00, from 95-11" a.m. =2’-12, and from
| (6h_8h p.M. =0'-74. There is a diminution in the velocity of the motion between 1 and 2" p.m. ; there is also
| a slight diminution at the turning point, 6"~7" p.m. and between 2" and 3" a.m. These diminutions appear
| to be connected with the fact, that they occur at turning points in the figures.
| __‘:162. It may be remarked that the line representing the astronomical meridian, and passing through the
centre of gravity of the figures for the months during which the sun is north of the equator, also passes through
q position of greatest velocity, and nearly through that of least velocity, of the diurnal motion.
163. General Form and Turning Points of the Diurnal Motions.—The general forms of the diurnal motion
ary between rude ellipses and circles. In the winter months, the principal portion, or loop of the figures, is
lliptical with the major axis horizontal ; near the equinoxes the figure becomes somewhat circular, and in the
midsummer months it again becomes rudely elliptical, with the major axis inclined about 20° or 30° west of
th magnetic meridian. In the usual investigations of the conventional element of declination, it has been re-
| marked that the turning from the farthest westerly position occurs near the time of maximum temperature ; a
| coincidence which has been supposed to indicate a real connection, though there is no similar coincidence between
ae epoch of minimum temperature and the eastern turning point. If, however, we examine the figures indi-
| eating the diurnal motions of a needle in its true position, such as those for the months of April, August, Oc-
tober, &c., we might find it difficult to say, where is a turning point and where not; and it is difficult to see
why the turning points at the extremities of the horizontal diameters of these rude circles, or at the extremities
of @ horizontal line, in the ruder ellipses, should be chosen, in preference to the turning points at the extremi-
| ties of other lines’ drawn in the figures, as tests for a theory ; unless, indeed, it be explained by the accident that
| a horizontal suspension of a magnetic needle is a convenient one for observing a certain portion of the motion
of a magnet, which, independently of gravity, would rest in the direction of the magnetic force.
164. It may be noticed, chiefly with reference to the months from March to October, that a line passing
through the positions of noon and midnight also passes through, or nearly through, the mean position, or the centre
_of gravity, each hour having equal weight : also a line passing through the positions about four hours before and
ur hours after noon, passes nearly through the centre of gravity of the figures ; the former of these lines lies
| nearly in the direction of the minor axis, the latter nearly in that of the major axis of the rude ellipses for the
{midsummer months. The horizontal line passing through the centre of gravity, also passes nearly through the
| positions of 1* a.m. and 1" p.m., which, therefore, are the epochs of mean dip. (See also No. 162.)
165. Angular Distances between the Hourly Positions from the Mean of all, and from the Undisturbed Days,
—It has been already stated, in considering the effect of disturbance on the hourly mean values of the magnetic
elements, that it is assumed that the mean of all the hourly values is unaffected, which, in the present case, is
equivalent to assuming, as has been done in Plate VIII., that the centre of gravity of the disturbed and un-
disturbed figures is the same; this must be very nearly true, as regards its position in declination (No. 38),
| but it is probable that there is some error with reference to its position in dip: it will be seen from No. 128,
| that this error in the figures for May-June and July-August is very small; it will also be seen from No.
| 128, that the dotted figures for the other months should be raised somewhat in the page, since the centre of
} gravity of the dotted figure has a less dip than that of the continuous figure ; the effect of this elevation would
| be chiefly to diminish the distance between the points about 4> and 5 p.m, on the figures for March and April :
Ixxiv GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
these remarks may be kept in view, in considering the numbers in the followmg Table, which are obtained from
Plate VIII.
cee A From Mean
Time. Feb. pril. June. Mee Nov. Feb. Aug. Mean of first 5
Curve. Columns.
13 26 32 26 24 -28 28 31 26 27
14 28 46 20 18 “14 18 28 24 24
15 09 16 16 06 +12 08 12 08 12
16 06 04 18 08 -12 09 09 04 09
17 15 08 08 +24 -14 13 14 08 14
18 21 20 08 32 34 25 18 22 24
19 20 24 14 32 -40 29 22 26 27
20 18 30 30 46 -42 29 34 28 33
21 22 36 28 30 -40 30 32 32 31
22 24 28 26 20 26 28 22 28 25
KP OUOWMDNAUNKRWNHK OS
—
166. The following are the conclusions from Table 68 :—
lst, In the two figures for the months from September to February, the effect of disturbance in displacing
the needle is a minimum about 4" a.m. and 45 p.m., the values for these hours being nearly equal, or near the
hours when the sun is on the magnetic prime vertical. "The taxtam effect of disturbance occurs in both about
10® p.m., when the eye is on the magnetic meridian, a secondary maximum occurring in the figure December to
February about 13" p.m., and in the figure September to November about 8 a.m. i
2d, In the feae for March—April, the minimum occurs about 4" a.m., and the maximum probably about
85-10" p.m., the value, however, varying little for the 18 hours from 8) a.m. till 2° a.m.
3d, The mean of the two results for the figures May—June and J uly—August is to some extent the reverse
of the result for December to February. The effect of disturbance is a minimum about 4} a. M., and abot
noon ; it is a maximum about 8" a.m. and 4" p.m. It would appear, therefore, that the diurnal ‘law of the
effect of disturbance varies with season as well as the law of the amount of disturbance (see Nos. 45,77, 110):
a minimum is also shewn about 8» p.m. a
4th, In all months of the year the effect of disturbance is a minimum about 4" a.m. In the winter mon
a minimum occurs at 44 p.m., the maximum occurs at the same hour in the summer months. f
5th, In the mean figure for the year, minima occur at 45 a.m. and about 53 p.m., the maximum occurs ab
10° p.m., and a maximum occurs between 8 a.m. and 45 p.m. If, making allowance for the effect of
turbance on the position of the centre of gravity with reference to dip (No. 121), we suppose the centre
gravity of the dotted figure for the year (Plate VIII.) raised 0’15 on the line of mean declination, or that of
the continuous figures lowered as much, we find the maximum effect of disturbance to occur about 10" DM
and 10 a.m., and the minimum effect abent 4h a.m. and 5" p.m. This result was obtained for the magnetic
clination im 1844, See the Volume for that year, p. 345,
THE AURORA BOREALIS.
Ixxv
167. Motions with reference to the Moon’s Hour-Angle.—These, as obtained from the means of all the luna-
tions in the years 1844 and 1845, and as deduced from winter lunations for 1845 only, are shewn in
Plate VII.
the diurnal motion for the month of December.
THE AURORA BOREALIS.
The resulting figures, especially that for the winter lunations of 1845, bear some resemblance to
168. The results for the aurora borealis are placed between the magnetical and meteorological discussions,
because the appearances of this meteor are distinctly connected with magnetic disturbances ; the frequency of
the one and the magnitude of the other, it will be seen, are governed by the same laws.
169. The following Table contains a list of all the aurore seen at Makerstoun, between January 1843 and
June 1849.
A very careful outlook for aurore was kept throughout the whole period, but especially during
the first five years; an outlook warned by magnetic disturbance in circumstances unfavourable to the visibility
of the meteor, and assisted by a practical acquaintance with the faintest auroral indications.
In several cases,
_ the auroral appearances were very faint; these are entered in the Table as “‘ Traces,” and, in others, there was
doubt whether the appearance was truly auroral ; these are indicated by ‘ Trace 2”
with the exception of the years 1844 and 1845, aurore were seldom looked for after midnight.
TABLE 69.—List of Aurore Boreales seen at Makerstoun in the years 1843-9.
D ate, Moon’s| Sk Species
mee tngen Age. |Clondedllanee Oloude:
ean Time.
| 1843.
ae ih: a.
Jan. 28- 8 28 0-0
Feb. 24 10—13| 25 9-7 | Send
Mar. 6 14 5 2-0 | Cum.-seud
7 38 6 0-0
12 9—13 11 2:0 | Seud
29 9—12| 28 0-0
Apr. 5 9—14| 6 | 0.0
14—16 if 0-0
Sept.18 10—12| 24 | 2-5 | Cirro-str.
19 10 25 9-8 | Cirrous
20 14—15| 26 1-0 | Scud
‘Oct. 15 10 21
16 10 22 9-8 | Cirrous
26 8—10 3 0-5 | Loose cum.
“| Noy. 2 10 10 | 0.2
13 8—10 21 9-8 | Various
i 14 10 22 8:0 | Cir.-strati
}Dec. 11 10 19 5-0 | Se.; cir.-str.
12 8 20 10-0 | Scud
27 6 6 0-8 | Seud
1844,
Jan. 5 10 15 9-0 | Seud
4 10 10—11 20 2-0 | Cirri
|Feb. 7 9 19 0:5 | Loose scud
‘ 11 13—14| 23 5-5 | Cirri
| 92 8 4 5-0 | Cirri
{Mar. 2 9 13 1-0 | Scud; cir.
7 8—10 18 1-0 | Cir.-str.
f 9 13 20 2:0 | Se.; cirri
| 211 23 0-1 | Cirri
} 29 11—16 12 0-1 | Cirri
| Apr. 5.12—14|) 19 0-2 | Cir.-str.
i 10 13 23 0-9 | Cir.-str.
; 17 11—12 0 5-0 | Cirri
WMay 8 11—12| 21 1-2 | Cirri
MAG. AND MET. OBS. 1845 anp 1846.
Character
of Magnetic
Disturbance.
Slight
Moderate
Moderate
Moderate
Considerable
Moderate
Considerable
Considerable
Moderate
Moderate
Slight
Moderate
Slight
Slight
Slight
Moderate
Moderate
Slight
Moderate
SModerate
Moderate
Slight
Slight
Moderate
Moderate
Moderate
Slight
Moderate
Moderate
Slight
Considerable
Moderate
It should be noted that,
Page
General Remarks. of Refer-
ence.
(1843.)
Traces. (Seen at Christiania.) 93
Traces. (Seen at Christiania and in United States.)} 201
Seen through clouds. 203
Arch 10° altitude. 54
Distinct. 54
Segment of circle 15° alt. 103", equatorial beam. | 111, 61
Bright arches and streamers. 61
142; arch 10° broad, 15° altitude. Corruscations. | 205
Bright. 14" 35™; 12° altitude. 213
115; band 10° altitude; seen through clouds. 69
Traces. (Seen at Christiania.) 69
Auroral arch 15° altitude. Streamers. 173
Traces through clouds. 175
9» 50™; arch 8° altitude. 177
Traces. / 70
Distinct. [places. 183
Traces. 125; magnets slightly disturbed at other | 183
Distinct. 71
Traces; through clouds, (Appearances at Parma.) | 191
Traces. 72
(1844.)
Traces. 174
Traces. 175
Faint. 186
Traces. (Suspected at New Haven, Connecticut.) | 187
Traces. 158
Trace. (Bright moonlight.) 158
Rather bright. Arch and streamers. 158
Rather bright. 158
Faint. 158
Bright. Arches and streamers. 158
Streamers, arch and band. 158
Traces. 209
Faint streamers and homogeneous light. 158
158
Faint.
lxxvi GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
TABLE 69.—continued. 4
;
Date, ) : Character Paze
Gottingen ote 8 ead A ie of Magnetic General Remarks. of Refer-
Mean Time. ; i ‘ Disturbance. naa
tea teeth a. : (1844.)
May 21 12 4 2-0 | Cirri Slight Traces, 158
22 11 5 0-2 | Haze Moderate Trace. (Seen at New Haven.) 158
Aug. 2 14 18 0-5 | Cirri Moderate Faint. [tucket, Mas.) | 252
9 14 25 3-0 | Scud Moderate Traces. (Seen at Whitehaven, and at Nan- 158 |
Oct. 2 8—10} 20 1-0 | Cirri Moderate Belt of light 5° altitude. 158 :
a O——tiele 23 0-0 Slight Faint. 158 g
7 11—12| 25 | 0-5 | Cirri Slight Faint. 277 |
20 14—18| 10 0.5 | Cir.-str. Considerable| Bright. Arches and streamers. 159
Nov.11 6—14 1 0-5 | Cir.-str. Moderate Distinct. Arch and streamers. 159
12 14 2 10-0 | Scud. Moderate Traces through clouds. 159 }
13 10 3 8:0 | Seud Slight Trace. (Seen at Christiania.) 159 :
16 10—11 6 7-0 | Cirri Large Arch 5°-8° altitude. Patches and streamers. 159 |
18 9 8 10-0 | Scud Moderate Faint. , 159
94 13 14 1:0 | Cirri Portion of an arch 10° altitude. 159
Dec. 4 8 24 0-2 | Cir.-str. Moderate Faint. 160
29 6—14| 20 Cirri Large Brilliant. Arches, patches, and streamers. 160 :
,
1845. (1845.)
Jan. 0 15—16| 22 5-0 | Cir.-cum. Slight Faint. 118
9 7—14 1 0-5 | Cirri Large Bright. Arches, brushes, and streamers. 118
19 12 11 9:0 | Cir.-cum. Moderate Traces. 119
20 11 12 2-5 | Cir.-cum. Slight Traces. (Seen in Orkney.) 119 -
218 13 9-5 | Scud Moderate Traces. 119
23 15 15 10-0 | Cir.-str. Moderate Seen through a break in the clouds. 119
24 13 16 0-5 | Cirri Moderate Traces. 119
96 13—15} 18 4-0 | Cirri Moderate Auroral appearances between the clouds. 120 :
28 8—12| 20 6:0 | Cir.-str. Moderate Distinct. 120,146} —
99) 7— 9)| 21 1-5 | Cir.-str. Moderate Faint. 120
30 8—10| 22 0-5 | Haze Moderate Traces. 120, 147;
Feb. 1 12—13] 24 0-8 | Cirri Slight Milky aurora. 120
5 8—13)}. 28 2:0 | Cirrous Moderate Arch and streamers. 121
7 14—15 1 2:5 | Cirrous Slight Milky aurora, 121
94 S—13| 18 0-0 Moderate Arch 8° altitude, and streamers. 122
26 15 20 3-0 | Cir.-cum. Moderate Trace ? 15m
298 12—14| 22 4:5 | Cirri Moderate Faint; milky aurora. 122
Mar. 9 16 1 | 10-0 | Scud Moderate Seen through clouds. 161
al iil 6 4:0 | Send Moderate Traces 2 163
18 10 10 2:0 | Cir.-cum. Slight Faint. 123
19 10—13)| 11 0-5 | Cir.-str. Slight Faint. 123
20 14—15| 12 0-5 | Cirri Moderate Faint. 165
23 13—14| 15 5:0 | Cirri Moderate Faint. 123
24 15 16 4-0 | Cirri Considerable | Traces. 124
25 9 17 9-8 | Cir.-str. Moderate Trace ? 167
26 11—14| 18 4:0 | Seud Moderate Traces. 123
28 10—11| 20 0-8 | Cir.-str. Moderate Faint. 168
29 11—12]| 21, 0-8 | Cirri Slight Faint. 123
Apr.13 11—16 7 7-0: | Cir.-str. Considerable| Brilliant. Arches and streamers. 123
ome 9 8-0 | Cir.-cum. Slight Trace ? 175
19 11 13 4-5 | Seud Moderate Trace. 123
30 11—14| 24 7:0 | Scud Moderate Faint. 123 |
May 11 13—14 5 1-5 | Cir.-str. Slight Faint. 184 |
Aug.29 10—13| 26 0-3 | Cir.-str. Moderate Distinct. Belts and streamers. 123
30 12 27 1-0 | Cirri Slight Faint. Seen through clouds. 226
Sept. 2 10—12 1 0-2 | Cir.-str. Moderate Distinct. Streamers. 124
25 16 24 0-8 | Cir.-cum. Moderate Faint. 236
27 9—10} 25 5:0 | Seud Moderate Faint. 9 arch 7° altitude. 10%; streamers. 237;
eee! ee
Date,
Gottingen
Mean Time.
Moon’s
Age.
THE AURORA BOREALIS.
Species
of Clouds.
Scud
Cirrous
Cirrous
Cirri
Cirri
Se. ; cir.str.
Seud
Seud -
Cir.-str.
Scud
Scud
Cirri
Cir.-str.
Seud
Cir.-str.
Cir.-str.
Se. ; cir.-str.
Se. ; cir.-str.
Cir.-str.
Se. ; cir.-str.
Cirrous
Cirrous
Cir.-cum.
Cir.-str.
Se. ; cir.-str.
Seud
Cir.-str.
Seud
Scud
Scud
Se.; cir.-str.
Cir.-str.
Stratus
Seud
TABLE 69.—continued.
Character
of Magnetic
Disturbance.
General Remarks.
Slight
Moderate
Moderate
Slight
Slight
Moderate
Moderate
Very large
Moderate
Trace.
Faint.
Faint.
Traces. (Seen at Christiania.)
Faint. Diffuse light, with streamers.
Arch 12° altitude.
Bright. Arches, streamers, and brushes.
Brilliant. Arches, streamers, and brushes.
Trace.
(Seen at Christiania.)
Patches and streamers.
Moderate
Moderate
Considerable
Moderate
Considerable
Moderate
Considerable
Moderate
Considerable
Considerable
Very large
Considerable
Moderate
Slight
Moderate
Large
Moderate
Arch and short streamers.
Diffuse light and faint streamers.
Faint light, arch, and streamers.
Faint.
Faint.
Diffuse light, with faint streamers.
Distinct. Patches and streamers.
Faint. Arch 7° altitude.
Faint. Beam. [bank 5° alt.
Distinct. Incessant pulsations of patches. 155;
Evidently bright, but obscured by clouds.
Aurora. Faint streamers.
Bright streamers.
Faint.
Traces; through clouds.
Bright. Arches and streamers,
Arch.
N.B.—See additional Notes after Table 69.
Moderate Faint. [like clouds from NW.
Slight Faint light. Arch and streamers; cirrous-fan-
Very large |(Bright. Corona borealis. 85 50™; arch about
10° alt. from NNW. 95 20™; arch about
20° alt. from SSE.
Considerable | Pulsations seen to 20° altitude above clouds.
Slight Faint. Varying patches.
Beautiful. Streamers, arches, brushes, waves, &c.
Pulsating patches, diffuse light, arches, stream-
Traces. [ers, &c.
Faint, with streamers.
Low band. Streamers close to horizon.
114 7™ ; Splendid corona, &c.
Moderate Faint. 8"; arch 8° alt. 11"; streamers on horizon.
Slight Traces.
Large Fine red-coloured patches and streamers. 10"12™;
\ corona borealis centre71° alt.,azimuth 8. 25° E.
Faint.
Faint.
Distinct.
Splendid crimson aurora, with corona borealis, &c.
Large
Moderate
Slight
Excessive
Moderate
Slight
Moderate
Excessive
Brilliant. Coloured ; streamers and corona bor.
Id. Much concealed by clouds.
Id. 8 50™; arch passing through zenith.
1 84 55™ ; lower edge of arch 42° above SSE.
Ixxvil
Page
of Refer-
ence,
124
125, 261
265
(1846.)
342
342
342
342
Ixxvili GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
TABLE 69.—continued. :
‘ Date, Sky Species Character :
ottingen of Magnetic General Remarks.
Mean Time. a DEEN UE Disiitariea!
1848.
d. h—h. ;
Mar.17 9—10 Traces; through clouds.
19 8—13 Bright arch of brushes.
21 12—13 Bright and rapidly pulsating.
24 10 Faint.
Apr. 17 10 Coloured, but sky overcast with growing clouds.
29 9—13 Faint. 11" 10™; streamers.
May 10 11 Faint. Streamers.
18 13 Bright. Streamers to 80° alt.; coloured red.
Sept. 5 12 Faint. Lightning. {and thunder.
Oct. 18 7—11 Coloured. 1035; corona borealis. 115; lightning
19 Faint. Streamers.
20 : Traces.
21 Traces. ;
22 12 Aurora, with streamers. [the 23d 2)
24 10 Traces. Overcast. (This may have been on
26 11 Faint.
Nov.17 7—13 Magnificent, whole sky crimsoned.
18 9—11 10"; arch about 10° altitude.
21 7-10 Bright. 8" 10™; large wing-like patches about
ty the anti-dip.
22 8—11 Bright, but sky overcast with clouds.
30 10 Traces.
Dec.17 713 Brilliant. 8" 40™; corona borealis. 114 40™;
ec a beautiful wings about its centre.
21 10 Faint. Low on north horizon.
1849.
Jan. 5 12—13 Aurora, with streamers. [arch 15° alt.
14 6—11 6" 10™; streamers. 9° 40™; arch 4° alt. 105 40™;
15 8—ll1 Diffuse light.
16 7 Traces ; through clouds.
25 8—ll1 Faint diffuse light.
26 8—ll Very faint.
31 10 Trace.
Feb. 11 10 Very faint.
13 11 Very faint. [to N. by E.
18 8s—ll 9» 40™; rather bright, with pink or red patches
19 9—12 8" 40™; bank to N. 9° 54"-58™; magnificent bow.
20 9—10 10" 0"; bank, or red streamers. Diffuse light.
21 9 Very faint.
22) 7-—112 7 20™; finely coloured to N. 11>48™; corona bor.
24 10 Very faint, with low arch.
26 10 Faint.
28 10 Trace. [and streamer.
Mar.18 10—11 10® 25"; fine arch 73° alt. 10°32"; low light
19 11—12 Faint arch to N.
Streamers, and pulsating wings about the centre
eee 1 of the corona borealis,
17 11 Faint.
After this time little watch was kept for Aurore.
Sept.17 9—11 Distinct traces on N. horizon.
18 13 Faint.
19 11—12 Faint.
Oct. 14 10 Faint, with short streamers.
18 Faint streamers.
THE AvRORA BOREALIS. lxxix
170. The detailed notes on the aurore seen till January 1847, will be found in the volumes referred to in the
Jast column of the previous Table: in order to render the series more complete, the following additional notes
for the year 1847-9 are given.
Gottingen mean time has been employed, as in the former volumes, in order
that the notes might be comparable with the magnetic observations.
rs
Gott. M. T.
B847. d.- h.
March 19 8
Pa ,
9
10
Sept. 29
E 9
“Oct. 24 11
mNov. 19
- 8
9
1848.
feb. 22 8
March 19 8
21 12
24 10
Oc, 18 7
ADDITIONAL NOTES ON AUROR® BOREALES SEEN IN 1847-9.
40™. Aurora of irregular streamers converging to the anti-dip. 44™. A bright beam from NW..,
through a and 8 Auriga ; persistent for some time. Masses of light at about 10° altitude. The
aurora terminates about NE. Cirro-cumulo-strati spreading from NW. 47™. Diffuse and hazy-like
aurora to SW.; patches 20° south of zenith, to SH., &c. 50™. Arch about 10° altitude, but not
very distinct, the moon appears as if in a cirrous haze. 52™. Patch reaching from zenith to 10° over
NNW.., becomes a beam immediately. Aurora becoming less bright. The clouds during aurore
often assume a curious brushy appearance. 56™. Sky nearly covered with auroral haze, which is less
bright to S., and more patchy.
20™. Faint auroral arch nearly complete, 20° altitude from S.
or milky aurora, both to N. and S.
15™. Milky aurora over the sky.
This aurora appeared in amorphous patches, jets, pulsations, and in bands, like portions of arches at
gh gm, :
25™. Aurora not bright, arches with pulsations; broad pencilly patches; about 30™ a long and broad
streamer reached from near the horizon to near the zenith, passing through the body of the Great Bear.
At 105 40™, the aurora was diffuse, extending to an altitude of 70° or 80°.
The corona very beautiful and perfect at this time, found by carefully examining the position of the
centre of the corona with reference to certain stars that it was S. 234 E., with an altitude of 702°.
Bright pencils and streamers seen till near 14"; lunar halo at 134 6™,
Fine coloured aurora; made a few notes about 95 p.m. as follows :—
583™. White patches in Cygnus; a very persistent red patch on the Pointers, it has moved perhaps 2°
eastwards since 524™; about 48™ very irregular white streamers on N. horizon.
13™. Bright-red streamers east of Pointers. 231™. White patch to WSW. 33”. Streaky aurora and
streamers ; air very clear; stars very distinctly seen and well defined ; clouds growing and dissolv-
ing. 41™, Patch 240° azimuth, 13° altitude. 223™. Corona; estimated the position of the centre
among the stars, and found it to be §. 25° E. altitude 71°. Considerable magnetic disturbance.
50™. Arch of aurora passed through zenith, and at 8" 55™, the arch had reached southwards till its south
edge had an altitude of 42°, as found from the position of the arch among the stars: the sky soon
clouded over. The aurora was observed about 74 20™; about 8" 50™ it was very brilliant with green,
white, and red streamers. Several flashes of lightning seen about 10". Arches to the south always
very faint.
13™. Very cloudy. Total eclipse of moon at midnight, when there was a very fine arch of aurora, made
up of brushes, very bright to NW. by N. Clouds of the growing and dissolving species so common
during aurore.
25™. Sky quite clear, excepting near the horizon, stars bright. Rapidly pulsating and vivid aurora first
seen ; pulsations seen in the space between NW. and NNW., clouds to N. and W. Slight rain
falling, though no cloud near the zenith, and not a breath of wind. About 28™, cirro-cumulous
scud (the growing and dissolving cloud) came moving up from W.; wondered whether the rain would
cease or increase when the cloud reached the zenith ; found that the rain ceased immediately when
the cloud crossed the zenith ; the pulsations of the aurora at the same time became less frequent ;
at first they reached from an altitude of 30° to past the zenith. After a portion of the cloud had
passed the zenith, leaying a little sky, a few drops of rain were again felt, but the cloud quickly grew
over the zenith again. The usual growing cloud obscuring the moon becoming more general and
denser. Pulsations much less at 32™.
Faint aurora to NNW., mostly covered with thin hazy cloud, radiating from that point to an alti-
tude of 45°.
10™. The sky, where free from clouds, has a reddish tinge, as if from aurora. About 8" the sky still
nearly covered with clouds ; beams seen in different parts of the sky, some reaching nearly to zenith,
a bright mass of aurora with streamers to W., little or no aurora to N. 9 10™. Sky nearly clear,
faint diffuse auroral light over most of the sky. About 10" 20”, sky nearly clear, brilliant corona,
beams rising from all parts of the sky ; mostly white ; rapid pulsations. Clouds speedily covered the
sky. About 11" 0”, a vivid flash of lightning followed in about two seconds by a peal of thunder ;
heavy shower of hail or snow. The magnets considerably disturbed about 7%.
Aurorz were seen at Inveresk by Mr Milne’s gardener on the following days, when none were ob-
served at Makerstoun, viz., April 24; July 1, 2, 23; and August 8, 1848.
39™, Sky covered with patches of hazy
MAG. AND MET. OBS, 1845 anv 1846. u
lxxx GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
Gott. M. T.
Weasel In
Feb. 19 8 40", Homogeneous auroral bank to N. with slight appearance of an arch.
9 54™_58™, Magnificent bow of aurora passing between Castor and Pollux, as in Fig. 1; shortly
afterwards a series of waves
seemed to move along the
lower edge of the bow from
east to west, and in a di-
rection opposite to the very
violent wind then blowing
from west; the appearance
of the waves is shewn in
Fig. 2.
10 10™. The source of the waves
was observed as in Fig. 3; the
bow was seen to be at the base
of a series of beams, which
converged to the anti-dip ;
the beams were but faintly
visible, but they were observ-
ed to rotate about the point c,
the centre of the corona, the
beam a, appearing to occupy
successive positions, till it
arrived at the position b ; in this rotation the wave-like motion observed in Fig. 2, was produced.
The sky was quite clear, and the wind blowing very violently. It is not a little curious that on the
following evening, Feb. 20th, Professor Forbes observed a similar arch in almost the same position.
He has obliged me with the following note of his observation :—
“ Edinburgh, 20th February 1849.—At 10% 10™, p.w. [Greenwich mean time], my attention was
called to a splendid auroral arch; the brightest I ever saw. Sky clear and calm blue, diffuse light
in N. At 105 11™. Centre of band over northermost of two bright stars in Gemini (Castor and Pol-
lux). Motion at first a little northwards, but returned to its former position. Undulations of bright-
ness from E. to W. passed along the zone. Began to break up from the E. end about 10" 18";
figure became irregular, and, on the whole, to the S. of its first position. 10" 22™. Only streaks in
the west remaining.”
March 18 10 25™. The arch passed between the stars, 38 and 40 of the Lynx, which were nearly on the meridian;
at 104 32™, the arch passed over the two stars, A and » Urse Majoris.
Diurnal Variation of Visible Frequency of the Aurora Borealis ——When we note from the preceding Table
the hours at which aurorz were seen at Makerstoun, we obtain the numbers in the following Table.
TABLE 70.—Number of times that the Aurora Borealis was seen at Different Hours in the Years
1843-9, as deduced from Table 69.
Mak.
Mean Jan Feb. | March.| April. | May. | Aug. Sept. Oct. Nov. Dec.
Time
Spa |i) 1 Oy al Oo. peo 0 0 0 1 3 5
6. 4 Dit NEG 0 0 0 1 2 7 3 14
his 10 7 4 1 0 0 2 8 7 6 23 12 10 45
B . 9 12 | 9 3 0 0 5 6 9 4 22 24 11 | 57
One 10 Lj alia 6 0 l 10 12 16 7 33 35 23 || 91
10" § LO se 12 3 2 7 8 9 3 20 35 17 |e
Tiley 4 9 10 7 2 3 5 3 4 3 11 26 11 | 50
12). 4 NSLS 7 2 1 ae ie) 3 3 10 21 4 | 37
1 aM 2 Bo awe 5 1 3 P|) 2 2 6 13 7 | 2%
Des 3 an eS 2 ) 0 2 2 ) 1 4 7 4 | Si
3) cn ol 0 2 2 0 0 2 3 0 1 2 4 5 | 11
Ch Sh wat O | oo 0 0 0 0 2 0 1 1 0 2 |
5. 0 OO 0 0 0 ) 1 0 1 1 0 1 | 2
FREQUENCY OF THE AURORA BOREALIS. xxx
171. Itis probable that the numbers for midnight, and the hours thereafter, are too small, for the reason given,
No. 169. The greatest number of aurore were seen at 9" p.m.; this result is independent of the effect of twi-
light, since 9" p.m. is also the hour of maximum frequency for the winter months. This hour is nearly the
hour of maximum disturbance for the magnetic declination and dip; as, however, the maximum disturbance of
_ the total magnetic force and a maximum of the magnetic dip appear to occur about 5" p.m., this also may be
an epoch of maximum frequency or intensity, though this can only be determined in higher latitudes. It
_ should also be remarked, that, since the epoch of maximum disturbance varies with season, so, therefore, it is
BE robable will that of frequency of the aurora; some traces of this may be deduced from the previous table.
In the winter quarter, November—January, four-fifths of the times at which aurore were seen were for the hours
before 10" p.m., whereas in the spring quarter there were only three-fifths seen before 104 p.m. (See No. 172).
TABLE 71.—Numbers of Aurore Boreales seen at Makerstoun in each Month of the Years
1843-49.
Years. || Jan. Feb. | March. | April.| May. | June. | July. | Aug. | Sept Oct Nov Dec Sum
7 4. 2 0 0 0 0 3 3 3 3 20
5) 3 3 0 0 2 0 4 6 2 30
: 11 4 1 0 0 2 3 4 3 2 47
. 1 2 0 0 0 2 4! 4 1 1 17
1 1 0 0 0 1 2 5 5) 1 18
4 2 2 0 0 0 1 7 3) 2 26
* 2 2 0 0 0 nit 3 2 oy ay 26
28 0 0
172. Annual Variation of Frequency of the Aurora Borcalis.—The first line following contains the numbers
of aurorz observed in each month during the six complete years 1843-8, and the second line gives the numbers
of hours at which the aurore were seen.
Jan, Feb. March. April. May. June. July. Aug. Sept. Oct. Noy. Dec.
15 16 26 14 6 0 0 i) 13 27 23 It
50 62 65 43 8 0 0 10 32 44 58 38
The greatest number of aurora was observed in March for the first six months, and in October for the last
six months of the year: none were observed in June and July. When the six months of 1849 are in-
‘eluded, the number for February is 26, and for March, 28. The law of visible frequency of the aurora is the
same as that deduced already for magnetic disturbance, namely, maxima near the equinoxes, and minima
near the solstices, the minimum at the summer solstice being the principal.* As, however, the shortness of
night during the summer months must diminish the number of visible aurore, it is by no means certain
from these numbers that a minimum occurs at the summer solstice; the fact of the minimum at the winter
Solstice is involved in no such difficulty. If we could assume that the aurore had the same diurnal law of
Recency at all seasons of the year, the existence of the summer minimum could be satisfactorily determined,
by comparing the numbers of times which aurorz were seen at the five hours, 10) p.m.—2 a.m., during
ss
—
* Tt has been stated in the volume for 1844, p. 401, that this result was long ago obtained by Mairan; this statement, made
chiefly on the authority of Kemtz and Hansteen, is not quite accurate. It is true that Mairan’s numbers give a rough indica-
| tion of the law, as will be seen below; but when it is remembered that his table includes all the observations (229) of which he
_ could find a record for upwards of 1000 years, it will be evident, that the conclusion that a greater number of aurore occurred at
both equinoxes than at the winter solstice would have been hasty ; this conclusion, however, is not made by Mairan, and, though he
has combined the numbers of aurore in a great variety of ways, he has made no combination exhibiting this fact. It did not enter
into the necessities of his theory (that aurore are the product of the solar atmosphere) to shew that a greater number of aurore hap-
pened in the northern hemisphere, at the vernal equinox than at the winter solstice; he shews, indeed, that the number for one equi-
nox is, and, in accordance with his theory, ought to be, greater than for the other. Some other philosopher has the merit of first
) pointing out this fact.
The following are the numbers of aurore by Mairan (Traité Physique et Historique de l’Aurore Boreale, par M. de Mairan,
Ixxxll GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
which (even in the months of August and May) there is little twilight to extinguish aurore. The numbers
are as follow, for these five hours in each month of the years 1843-8 :-—
Jan. Feb. March, April. May. June. July. Aug. Sept. Oct. Nov. Dec.
15 24 38 31 8 0 0 9 14 16 18 12
From these it is evident that the numbers in May and August are certainly less than for April and Sep
tember; but it has been already mentioned as probable that the diurnal law of frequency varies with season, of
which, indeed, a proof is to be found in the great excess of the numbers above for the spring months, com-
pared with those for the autumn months, shewing the later epoch of the maximum frequency in the former. —
An examination of Table 18, however, will shew, that, though the maximum disturbance occurs after midnight, —
in the months of May, June, and July, yet in August and the two following months it occurs about 10" p.m, _
so that there can be no doubt of the less number for August than for September and October, if there should ©
be a doubt in the case of May compared with April. The difference, however, even in the latter case is too
great to be explained by any slight shift of the epoch of maximum frequency in the two months. Upon the
whole, it appears certain that a minimum of actual as well as of visible frequency occurs in summer; a result —
quite in accordance with that for the amount of magnetic disturbance, which accordance is sufficiently close to —
permit us to complete it, by assuming that the number of aurore is a principal minimum in summer, «
173. Variation of Frequency of the Aurora Borealis with the Moon’s Age.—This investigation is evidently —
beset with considerable difficulty, since the moonlight existing nearly extinguishes the appearances of all the —
fainter class of aurore, and it renders the faintest wholly invisible; the careful watch, however, which was —
kept for auroral appearances at Makerstoun, probably renders Table 69 better fitted for such a question than —
any previous series of observations.* :
174. Combining the numbers of aurore observed at each day of the moon’s age into six groups of 5 days (the
first group, 43 days), we find the average number of aurore for one day of the moon’s age in each group as —
follows, from the 63 years’ observations :—
Moon’s Age. 284—o24 34—74 84—]2¢ 134—174 184—224 234974
Number. 5:8 5:9 3°6 5:0 10-2 6°6
Did aurore occur indifferently at all ages of the moon, we should expect to see the greatest number at conjunction, —
and the least number at opposition ; this however is not the case, the greatest number was seen about two days _
before the end of the third quarter, and the least number about two days after the first quarter, or the visible maxi- ©
mum and minimum occurred at times equidistant from the epoch of opposition. The frequency of aurora,
therefore, is a function of the moon’s age. In order to determine the actual law, we may consider the probable |
effect of moonlight in obliterating the auroral appearances ; remarking, first, that 95 p.m., is the epoch of
maximum frequency for the aurora, and that upwards of five-sixths are seen before midnight. When the moon
is about three days old, in the months from September to March, it begins to set sufficiently late, and to have suffi-
cient light to render the earlier of the faint aurore invisible ; about the end of the first quarter, it does not set —
till midnight, and thus shines throughout the period of the occurrence of five-sixths of the aurore ; afterwards it~
increases in brightness, and the maximum effect in extinguishing faint aurorze is evidently attained at opposition, —
when the moon begins to rise late enough to allow the earlier aurore to be visible; towards the end of the —
4
1733, p. 199); by Kemtz (Complete Course of Meteorology, translation by Walker, p. 458); and by Hansteen (Mem. de I’Acad. Roy. ‘
de Belgique, t. xx., p. 117).
Jan. Feb. March, April. May. June. July. Aug. Sept. Oct. Nov. Dec. Sum,
Mairan, . 21 27 22 12 1 5 7 9 34 50 26 15 223
Kemtz, 229 307 440 312 184 65 87 217 405 497 285 22 3258
Hansteen, 29 31 47 34 2 0 0 ily 35 33 34 23 285 —
J. A. Broun, 22 26 28 16 6 0 0 7 16 29 23 11 184
Sum of last three, 280 364 515 362 192 65 87 241 456 559 342 259 372mm
Mairan’s numbers are probably included by Kemtz; a few of the aurore, included in M. Hansteen’s list, are identical with
those in my own. i
* It should be remarked, that the latitude of Makerstoun, or perhaps even a lower latitude, is better fitted for this investiga
tion, than much higher latitudes; at least this is the case as long as only frequency of visibility can be considered, The French
Commission du Nord, during their stay in Lapland, found aurore existing, or probably existing, almost every night. In such places
variation of frequency there is none, and variation of intensity alone remains for investigation. It is obvious, that till some better —
mode of measuring this intensity can be devised.for these high latitudes, we are forced to perform this operation in a rude manner, —
by moving to lower latitudes, where the fainter aurore become invisible, and where, therefore, frequency is a test of intensity be-
yond a certain limit.
THE AvrRorRA BOREALIS. Ixxxiil
third quarter, when the moon does not rise till midnight, it is also evident that the number of faint aurore
‘rendered invisible must be very small. From the beginning of the fourth quarter, therefore, till conjunction,
the numbers seen will obey nearly the true law of frequency; and as the visible maximum occurred before the
end of the third quarter, the true maximum must have occurred even nearer to opposition, On the whole, it
“appears very certain, that the hypothesis of an actual maximum of frequency at opposition and minimum
at conjunction, is satisfied by the previous numbers of auroree, seen under the conditions of the varying duration
‘of moonlight for the hours of maximum frequency. This hypothesis is in unison with the law of magnetic
- disturbance, which is a maximum at opposition, and a minimum at conjunction.
NOTE ON THE THEORY OF THE AURORA.
175. Although temptations to frame hypotheses have been avoided hitherto, I cannot refrain from repeating
here, the opinion, that the phenomena of the aurora borealis are chiefly optical. After watching the various
phases of the aurora for some years, the hypothesis of self-luminous beams and arches appeared to me unsatis-
factory, and the strongest argument in its favour, that obtained from the computed height of the auroral arches,
seemed of a very doubtful character. I was quite prepared, therefore, to adopt the idea, first I believe pro-
posed by M. Morlet to the French Academy, in May 1847, that the auroral arch is an optical phenomenon of
“position. M. Morlet has pointed out that the arch appears generally as a segment of a circle, whereas, in these
latitudes, it ought invariably to appear as the segment of an ellipse, if the hypothesis be true, of a real lumi-
‘nous ring, with its centre on the continuation of the magnetic pole. He has also, among many other very
obvious objections to that hypothesis, shewn that the summit of the arch is generally in the magnetic meridian
of the place, the plane of which rarely passes through the magnetic pole, and seldom passes through the same
point, for three different places. I have, however, felt even more persuaded, that the aurora is, partly at least,
an optical phenomenon, from a consideration of that phase of the aurora constituting the corona borealis, a
“persuasion that I stated, in the Literary Gazette of the time, in giving an account of the beautiful corona of
October 24, 1847. Mairan and, more lately, Dalton, have explained this phase of the aurora by a hypothesis of
olar beams, long fiery rods of solar atmosphere, according to the one, of red-hot ferruginous particles accord-
‘ing to the other, seen in perspective, as they lie in the direction of the magnetic force. A little acquaintance
_ with the phenomenon—the rushing and tilting of the beams against each other, one beam occasionally rising
from the horizon, passing through the centre of the crown and beyond it—would shew the improbability of this
hypothesis. I am persuaded, that the phenomenon of the corona borealis is produced in a narrow horizontal
_ stratum of the earth’s atmosphere. Thanks to the discoveries of Dr Faraday, we do not now require a ferruginous
‘sea, in order to have polarized particles ; the watery crystals that inhabit the upper regions of the atmosphere
_ can themselves assume a polar state, determined by the passage of electric currents ; and we have only to com-
| plete this fact by a hypothesis of luminous electric discharges seen refracted by these crystals, the position of
| visibility of the refracted rays depending on the angles of the crystals, and the deflections from the direction of
| magnetic force, which they suffer by the electric currents. Such a hypothesis, which occurs at once when an
‘optical phenomenon has to be accounted for, would explain these remarkable auroral clouds, so often seen in
connection with the aurora itself; it would also serve to explain the appearance of the arch at certain alti-
tudes, lower for lower altitudes, determined by the position of the source of light, direction of the magnetic force
at the place, and the effect of the electric current in deflecting the crystals. The crystals successively deflected
| by electric currents, would also exhibit the rushing pencils or beams. It need scarcely be remarked that dif-
ferently formed crystals might give rise to different phases of the phenomenon, while reflection might be com-
bined with refraction in certain cases, especially in the case of arches seen south of the anti-dip. Such a hypo-
_ thesis evidently assumes a source of light, independent of these optical resultants, and the pulsations seen in
many aurore may be real luminosities. It is hazardous, in the present ill-arranged state of auroral observa-
tion, to offer so rude a sketch of a new hypothesis, although we may suffer a considerable defeat in very good
| company.
13 Since the previous note was written, I find that M. Morlet has published a theory of the auroral arch
(Ann. de Ch., t. xxvii., 3me Série). The ideas above were stated by me two years ago, to different persons.
MAG. AND MET. obs. 1845 ann 1846. x
lxxxiv GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
METEOROLOGICAL RESULTS.
TEMPERATURE OF THE AIR.
TABLE 72.—Monthly Means of the Temperature of the Air at Makerstoun, for the
Years 1841-9.
Month. 1841. | 1242. | 1943. | 1844. . | 1946. | 1847. | 1848. | 1849. Scr aie be!
Variations.
January 33-90} 38-43] 37-35 : 41-06} 33-70} 32-54| 36-68 |) 36-05
February : 32-92] 32-48 | 32. 42-52] 33-85 | 38-67| 39-86] 36-50
March . 39-40] 38-36, 35- 39-96 | 40-77 | 39-99) 40-81 39-47
April . 44-79| 46-77. 44. 42-32| 41-25) 41-08} 39-06 || 43-11
May . 46:54| 48-49 . 51-15 | 50-76| 56-60} 50-42)| 50-14
June : 51-35] 54:14, 55- 61-20] 55-71) 54-50) 53-24]) 55-36
July . 56:55 | 55-55 54- 58-65 | 60-67 | 58-11| 56-27 || 57-00
August : . 57-12} 54-08 59-16| 56-58| 53-20) 56-23]) 56-38
September ° . 55-67 | 52-30 55-69 | 49-11} 51-73) 51-82] 52-43
October : 44. 42-93 | 45-74 . 47-58 | 47-50} 45-99| 45-49) 45-95
November . : 39-38] 42-85 . 43-02] 44-38] 40-20} 41-05} 41-60
December . 45:50] 32-04) 37- 32-53 | 38-37] 39-22) 36-71 38-36
SS ——_—_
Year. Sioniehee : 45-88 | 45-01 . 47-90 | 46-05} 45-99| 45-64 || 46-03
176. Mean Temperature at Makerstoun.—The mean temperature of the air in the shade, as deduced from
observations in the 8 years, 1842-9,
= 46°03, with a probable error of 0°24.
The year 1845 had the lowest mean temperature and the year 1846 had the highest, the former being
1°-44 less than the mean of the 8 years, and the latter being 1°-87 more.
The mean temperature at Makerstoun for any future year = 46°-0, with a probable error of 0°-7.
Naming the three coldest months, the meteorological winter, the three hottest, summer, and the interme
diate quarters, spring and autumn, we find their mean temperatures at Makerstoun, as follows :—
Meteorological Winter, Dec., Jan., Feb., Mean Temperature = 36°97
Sprnig, “ Marth, April) Mays) 9... ..--.2:.see = 44°24
pummer, June, July, Aupy 9 )...22.-:.....00e = 56°25
Autumn, ‘Sept. Oct, Naver eme-.....2-s-2-foaae = 46°66
177. Annual Variation of Temperature.—By the monthly means from the 8 years’ observations
The maximum temperature occurred appro July 22
The minimum temperature «+--+ see seeeeeeeeeeeeee January 27
The mean temperature setseeeeeeeecseerseseeee April 29 and October 14
The lowest monthly mean temperature occurred in 4 years in January, in 2 years in December, and in 2 years
in February. The highest monthly mean temperature occurred in 4 years in July, in 2 years in June, and in
2 years in August.
The highest monthly mean temperature occurred June 1846, = 617-20
The lowest monthly mean temperature occurred December 1844, = 32°04
The range of the monthly mean temperature in 8 years therefore = 29°-16
The greatest es ae range of ee mean oe occurred in 1846, = 28°-67
The least sa uneevesab one cise a sencevecsveeeeseee 1849, = 19°59
The difference between the temperatures of the hottest and coldest months in the mean of 8 years = 20°95
wssiiageiclad Mopar ee classe olsee ap sit accent nip eteidie ata ua Che Ste ee ee eee 9 months © 22), .2:.+00- nee nn 42,
ANNUAL VARIATIONS FOR THE TEMPERATURE OF THE AIR. lxxxv
178. We may employ the monthly means in the 11th column of Table 72, for the purpose of predicting
the mean temperature for a coming month, the probable error of the predicted temperature for each month as
deduced approximately from the Table, bemg as follows :*—
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
2°-0 2°-9 aa 1°°9 1°-9 are 1°4 1°-5 1°5 ol 1°-2 3°°2
7 Thus, at Makerstoun, there are equal chances that the mean temperature of any month of March will not
be more than 1°-1 from 39°5. The months of March, October, and November, shew the least variation of
| monthly mean temperature ; the months of December, January, and February shew the greatest variation.
TABLE 73.—Monthly Means of the Diurnal Ranges of Temperature, as deduced from the
Observations of the Register Thermometers, for the Years 1843-6.
179. Annual Variation of the Diurnal Range of Temperature-—From the last line of Table 73, the mean of
| the diurnal ranges of temperature was least in December, and it was greatest in June and August. It appears
probable, however, that when a sufficient number of years’ observations is considered, the mean of the diurnal
‘ranges will be found to vary little from April till September. This result is analogous to that obtained for
_ the ranges of the mean undisturbed diurnal variations of the magnetic elements.
| The ranges of the monthly mean diurnal variations, from the hourly observations in the two years 1844-5,
are as follow :—
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
meoOne7 Oo 9°-30) 147-70) 11°80 12°15 12°00 12°35 12°60 8°20 5°05 3°70
These quantities indicate a result quite similar to that obtained from Table 73, though, as might be expected,
| the ranges are considerably smaller. December has the least range, and May, June, and July have rather
| less ranges than April, August, and September.
TABLE 74.—Mean Differences of the Daily Mean Temperature from the Monthly Mean for
each Month in the Years 1843-6.
* These numbers divided by 3 will give approximately the probable errors of the monthly means in the 11th column of Table 72
as the true monthly mean temperatures at Makerstoun.
lxxxvi GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
180. Differences of the Daily Mean Temperature from the Monthly Means.—From the means of the results
for the four years 1843-6 in the last line of Table 74, the differences of the daily mean temperature from the —
monthly mean temperature are greatest in the six months October to March, and they are least in the remain- —
ing six months; there are irregularities in the value of the mean difference from month to month; the mean
difference is less in December than in the immediately preceding and succeeding months, and it has nearly the
same value as in June. The mean difference is greatest in January, and it is least in August. From the four
years’ observations the mean temperature of a civil day differs on the average 3°°6 from the mean tempera-
ture for the corresponding month.
181. The irregularity of the monthly mean temperature does not seem to be connected with that of the
daily mean temperature; thus, March and October, which have the least variation of monthly mean tempera-
ture, have the greatest variation of daily mean temperature, with the exception of January.
182. Diurnal Variation of Temperature.—Table 75 has been formed in the manner already described for
Table 12. The approximate epochs deduced from Table 75 are given in Table 76.
TABLE 75.—Diurnal Variation of the Temperature of the Air for each Astronomical Season and for
the Year, deduced from the Observations of the Years 1843-6.
Intervals,
Minimum
AEE, .M. . M. .M. .M. P.M. Mean| A.M. Mean| Minimum
to to to
Maximum.| P.M. Mean.| Sunrise.
ibe)
Nov. Dee. Jan. 6 40
Feb. Mar. Apr. || 4 32
S) 335)
5 10
May June July
Aug. Sept. Oct.
Year 3 45
The following are the conclusions from the previous table :—
1st, The minimum temperature occurs immediately before sunrise in summer, about 13 hours before it in
winter and spring, and about half-an-hour before sunrise in autumn; it is evident, however, that accuracy
in the determination of the interval is not increased by combining several months together, since, in the result
for the year, the minimum appears to occur at a greater interval from sunrise than in any of the quarters.
2d, The maximum temperature occurs latest after noon before the autumnal and after the vernal equinox ;
it occurs nearest noon in summer, but the temperature changes very slowly in that quarter from 1" to 3" P.M.
J
.
PRESSURE OF AQUEOUS VAPOUR. Ixxxvil
3d, The intervals between the epochs of mean temperature and of the maximum temperature are nearly equal
in spring and autumn; the afternoon interval is greatest in summer, and it is least in winter. If we except
summer, the temperature increases as rapidly from the mean to the maximum, as it diminishes from the
maximum to the mean ; the slight difference in autumn between the values of the intervals, and even that in
summer may be due to error in the epoch of maximum resulting from the fewness of the observations. In
each quarter, with the exception of summer, the temperature diminishes more rapidly after the maximum till
sunset than it increased during equal time before the maximum.* It will be seen from the column for the year,
‘in Table 75, that the mean temperature for the pairs of hours before and after 1" and 2” p.m., are equal or
nearly equal till the pair 95 10™ a.m. and 62 10™ p.m., which are also nearly equal, so that the mean diurnal
curve for the year from 9" 10™ a.m. till 6" 10™ p.m. is symmetrical about a vertical axis. ;
PRESSURE OF AQUEOUS VAPOUR.
TABLE 77.—Mean Pressure of Aqueous Vapour for each Month in the Years 1843-6.
183. Annual Variation of the Pressure of Aqueous Vapour.—The pressure of aqueous vapour, as deduced
from the observations of the dry and wet bulb thermometers, is least in February, being in the mean of 4 years
= 0-198 inch of mercury, and it is greatest in August = 0-393 inch, the difference between the greatest and least
_monthly means being nearly two-tenths of an inch. The mean pressure for each of the four months December
to March varies little ; so also for the four months June to September.
The mean pressure for the four months December to March from 4 years’ observations = 0°211 inch.
ie oink Sissejcieie ov o's SPREE rs ocrar%es JmnelfoySeptembens: 5 gos. acachiddens ac-iieaaacund A= O dO]
The mean pressure of aqueous vapour for the 4 years 1843-6 = 0:285
TABLE 78.—Variations of the Pressure of Aqueous Vapour with reference to the Moon’s Age and
Declination for the Years 1843-6.
After
Moon
Mean. | farthest
North.
Gh) GE
27— 1
2— 5
6— 8
9—12
13—15
16—19
20—22
23—26
184. Variations of the Pressure of Aqueous Vapour with Reference to the Moon’s Age.—Though it has not
been possible to determine by our apparatus the heating effect of the moon, yet it is believed that it has some
; * The difference betwixt this result and that obtained by others is due, it is conceived, to the want of proper precautions to
avoid the effects of radiation or reflection of the sun’s heat from the soil or surrounding objects in the afternoon. It will be seen,
1 in the Introductions to the several volumes, that this source of error was cared for at Makerstoun.
MAG, AND MET, oBs, 1845 anp 1846. y
Txxxvill GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
effect, especially on the aqueous contents of our atmosphere ; in order if possible to determine this, the discus-
sions, of which the results are contained in Table 78, were made for each year; the means of the 4 years
indicate as follows,—
1st, That on the whole, the pressure of aqueous vapour was greater about opposition than about conjunc-—
tion; the average pressure of each.of the 15 days forming the second and third quarters being 0-003 inch
above the mean, and of each of the 15 days forming the fourth and first quarters being 0-003 inch below the |
mean.
2d, That the pressure of aqueous vapour was greatest from about the period of the moon’s farthest
southerly position, till near its farthest northerly position ; that it was least from its farthest northerly pose F
till it was nearly farthest south. j
3d, If the first result be considered true, then the aqueous vapour pressure varies with the moonlight ; as
this pressure is greatest in the months from June to September (No. 183), during which the moon is in con-
junction in its ascent from its most southerly declination, and least in the months from December to March,
during which it is in conjunction in its descent from its most northerly position, the second result is probably i
a consequence of the first.
a alt NS a
TABLE 79.—Diurnal Variation of the Pressure of Aqueous Vapour for each Astronomical Season 4
and for the Year, deduced from the Observations of the Years 1843-6. {
bt+++++4+4
b++++t+t+sH+
KOOCMDNOURWNHrH OF
a
185. Diurnal Variation of the Pressure of Aqueous Vapour.—The following are the approximate epochs
of the minimum and maximum, as deduced from Table 79.
Winter, Nov., Dec., Jan., Minimum, 11) p.m.— 7" a.m. Maximum, 1" 30” p.m. ik
Spring, (Heb March, Apri, =:h:...:.5.,. 4200mrmey 04 40™ p.m, ;
Summer, May, June; July, © 9 Pi...denees COORG eee 14 30™ p.m. Gs
Autom, 9lug. sept. Oe, —- sete festa DMO H ent ~~ «yep aeoeees Om 40™ p.m, ‘
Weart0--\ Sp + RG eka AOR OM met | UU eee 15 10™ p.m.
These epochs do not differ greatly from those for the temperature of the air, the principal difference is to be *
found in the variation of the epochs of maximum with season; the maximum pressure of aqueous vapour
occurs earliest near the equinoxes, and latest near the solstices, whereas the reverse is the case for the tem-
perature of the air. In the mean for the year, the mean pressure of aqueous vapour occurs at 85 0™ 4.m., and “4
at 8" 25™ p.m, the interval being 12? 25™. 7
if
The range of the diurnal variation for the Winter quarter = 0-018 inch.
ee SI oe ut Spring ...... = 0-026 ... 2.
ere eoe ame deo aan adamoosebede SUIMMeH N-.-) =. 0:040 a
ainiivevsyezotcn NOAG RRS RET ce ear eee AUtUMING 2.5.0. = 0-054 a.
oialbvcle ayabeva sree Gg SR OR En Ie EEE eS Year = 0-034 ... }
RELATIVE HuMIDITY. Ixxx1x
The range of the mean diurnal variation, therefore, gradually increases from the winter quarter till the autumn,
_ when it is largest, the ratio of the ranges for the four quarters being as 6: 9: 13: 18 nearly. ,This varia-
tion of the range is neither related to the range of temperature, nor to the absolute value of the pressure of
aqueous vapour.
RELATIVE HUMIDITY.
TABLE 80.—Mean Relative Humidity of the Air for each Month in the Years 1843-6,
Saturation being equal to Unity.
186. Annual Variation of the Relative Humidity,—The relative humidity is least in June, and it is greatest
in December and January ; the three months, April, May, and June, have the least mean, = 0°802; the three
months, November, December, and January, have the greatest mean, = 0°896. The means for the astrono-
mical seasons are as follow :—
Winter, Nov., Dec., Jan., = 0:896 Summer, May, June, July, = 0°806
Spring, Feb., March, April} = 0°836 Autumn, Aug., Sept., Oct., =0-8o)
Year, = 0°847, Saturation being equal to Unity.
TABLE 81.—Variations of the Relative Humidity with reference to the Moon’s Age and
Declination, for the Years 1843-6.
After
Moon
farthest
North.
d. d.
27— 1
2— od
O t3)
9—12
13—15
16—19
20—22
23—26
187. Variations of the Mean Relative Humidity, with Reference to the Moon’s Age and Declination.—The
_ object of this discussion has been already stated, No. 184; the results here are considerably more indistinct than
| in the former case ; they agree on the whole, however ; the pressure of aqueous vapour and the relative humidity
| following nearly the same law; which might be expected if the temperature of the air be supposed not to vary
| with the moon’s position. The relative humidity is greatest at and after conjunction; it is least at and after
‘opposition. It is greatest while the moon is ascending from its most southerly position, and least when most
‘|northerly. (See No. 184 3d).
XC GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
TABLE 82.—Diurnal Variation of the Relative Humidity of the Air, for each Astronomical Season
° and for the Year, deduced from the Observations of the Years 1843-6.
Mak. Nov. Feb. May. Aug. Mak. | Nov. Feb. May. Aug.
Mean Dec. March. June. Sept. Year. Mean Dec. March. June. Sept.
Time. Jan. April. July. Oct. Time. Jan. April. | July. Oct.
h. m. h. m. |
12 10 |+0-013 |+0-061 |+ 0-103 |+0-072||+0-062] O 10 | —0-035 |—0-090 |—0-109 | —0-106 |
13 10 ||+ -014\+ -065/+ -105|/+ -075)}+ -065 1 10-||— -043|— +-107|—-198 | —»-129
14 10 ||+ -012/+ -069/+ -105|+ -072,/+ -064] 2 10 ||— -044;— -110|— -112/— -130
15 10 |i+ -014/+ -065/+ -109/+ -078]+ -066] 3 10 ||— -027|— -106|— -112|— -.120
16 10 ||+ -017/+ -064/+ -101|)+ -075|}+ -064] 4 10 ||— -009|— -090|— -102|— -096
17 10 |+ -018/+ -066|+ -087)+ -072]/+ -061} 5 10 |+ -001;— -052|— -079|— -058
18 10 ||-+ -022)/+ -058/+ -062/+ -064//+ -051] 6 10 |+ -003|;— -027|-— -051|— -016
19 10 |+ -019|/+ -050/+ -023/+ -052)|+ -036] 7 10 ||+ -003/+ -009|— -012/+ -018
20 10 |+ -021\+ -027/— -017\/+ -019|/}+ -012] 8 10 |+ -007/\+ -028\+ -031/+4 -.038
21 10 |+ -007;/— -010/— -054|— -019|/}— -019] 9 10 |+ -009\+ -037|+ -059\+4 -051
22 10 |— -005|/— -054|— -077|— -057|}— -048] 10 10 ||+ -007|+ -053|/+ -078\+ -060)
23 10 |— -027/— -073|— -103|/— -085||/— -072] 11 10 |+ -004|+ -060\+ -088\+ 057 |
188. Diurnal Variation of the Relative Humidity—The following are the approximate epochs of maxima
and minima, as obtained from Table 82.
Winter, Nov., Dec., Jan., Maximum 7* a.m. Minimum 1} 50™ p.m,
Spring, March) Aprily May, .4..\bd.0-0 MD 6 2s 58 Rbs 15 50™ p.m.
Summer,” "Sane, Puly, Aue, ee, nates BAMEONREE chase ene,sh sac 15 20m p.m.
Anton, "Pepe MOck Nov, *L. . vaeencles Se a... s esone DY DOU eae
Wears sim i 1 ge Sete nnaee BOER... agyaat 14 40™ p.w.
The diurnal variation of relative humidity is nearly the inverse of that of the temperature of the air.
The mean relative humidity occurs at 8" 33™ a.m., and at 7" 1™ p.m., the interval being 10 28m,
The range of the diurnal variation is least in winter, = 0-066 ; it is*greatest in summer, = 0-227; the
_ values of the range for spring being 0-179, and for autumn being 0:208.
ATMOSPHERIC PRESSURE.
189. The Mean Pressure of the Atmosphere at Makerstoun, 213 feet above the mean level of the sea, as _
deduced from the observations in the 8 years 1842-9, = 29-615 inches of mercury at 32° Fahrenheit, measured
on brass at 62° Fahrenheit ; with a probable error of 0-009 inch, each year’s mean receiving an equal weight. |
The mean pressure for any future year = 29°615 inches, with a probable error of 0-026 inch.*
TABLE 83.—Monthly Means of the Atmospheric Pressure at Makerstoun, for the Years 1841-9.
|
Mean of 8 Years.
Month. || 1841. | 1842. | 1843. | 1844. | 1845. | 1846. | 1847. | 1848. | 1849. Maus
Height of Tevet
213 feet. of Seat
in. in. in. in. in. in. | in. i in. in. Sia
Jan. 29-584 | 29-357 | 29-693 | 29-512 | 29-392 | 29-604 | 29-722 | 29-508 29-547
Feb. ‘611 -499 +321 -704 -617 -625 +194 -819 +549 ‘788
March -485 -662 +529 -741 -406 ‘775 +354 -755 588 -826
April -946 487 -805 -642 -535 455 +595 -450 -614 +850
May -626 -620 -980 -703 -648 -599 ‘770 -796 -718 -951
June -764 -619 -627 +597 -706 -672 475 -735 “649 ‘879
July -665 -635 -625 -622 -556 -794 ‘619 -583 -637 -865
Aug. || 29-567 :723 -656 -489 -578 -691 751 -526 -658 -634 -863
Sept. | -483 652 935 817 645 -732 -605 717 -792 -737 -970
Ohetis hy 8372 -682 -401 -397 -602 +312 -646 551 -606 +525 -758
Nov. 453 -448 -471 -563 +323 -655 -643 -601 -530 +529 -765 -
Dec. || verses -649 -962 +892 -369 -599 -490 +542 -723 -653 -892 ,
Mean -653 -609 +645 -586 ‘571 -638 +555 -663 615 +846 |
* All the observations are reduced to the mean of the flint and crown glass barometer of the Royal Society of London. In com-
paring these results with others reduced to the flint-glass barometer only, a correction of + 0-003 in. should be applied, See Intro
duction 1844, page lv.
ANNUAL VARIATIONS FOR THE ATMOSPHERIC PRESSURE. x¢cl
190. Annual Variation of the Atmospheric Pressure.—Eight years’ observations appear insufficient for an
accurate determination of this law. If we give the monthly means for each year equal weight, we find the
_ probable error of the means in the last column of Table 83 to be
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
in. in. in. in. in. in. in. in. in. i in.
0-043 0:045 0-037 0-040 0:028 0-020 0-016 0:021 0-024 0-030 0-025 0-044
The probable errors of the means for the five months December to April are greatest, and they are least
for the months June, July, and August. The irregularity of the monthly mean pressure is therefore least at
the hottest season, and greatest at the coldest season of the year ; it does not vary, however, with the irregu-
larity of the monthly mean temperature. (See No. 178.) It is evident from these probable errors that the
accurate epochs cannot be obtained from the last column of Table 83. If we take the means of each couple
_ of months, the probable error of each mean will be reduced to about a half (the probable error of the mean
of December and January, = 0°024 inch, of January and February, = 0-019 inch, &c.), and the annual law
will be more certain ; these means are as follow :—
Prefix Jan.—Peb.—March—A pril— May —J une—J uly— Aug.—Sept.—Oct.—Nov.—Dec.—Jan.
29 in. ‘548 -568 -601 “666 -683 °643 °636 -685 -631 -527 °581 -600
_ These numbers give nearly the same result as that derivable from the simple means in the last column of
_ Table 83. It is probable, therefore, that at Makerstoun the atmospheric pressure is a maximum from May to
_ September, being rather less for the intermediate months than for the first and last of that period; that it is
a minimum in the end of October and in the beginning of February, a secondary maximum occurring in the
end of December.*
191. The quarterly groups which give the greatest range of mean pressure are the following,—
%
4
: Jan. Feb. Mar, April, May, June, July, Aug. Sept. Oct. Nov. Dec. Oct.—Mar. Apr.—Sept.
3 in, in. ' in, in. in. in.
4 29-561 29-660 29-669 29°569 29:565 29°665
i * Having examined the excellent series of barometric observations made under the direction of the Astronomer Royal at
Greenwich, simultaneously with the Makerstoun series, for the purpose of comparing the annual law at the two places, the conclu-
sions are given briefly in this note.
1st, From the means of 9 years’ observations (1841-9) at Greenwich, the atmospheric pressure is a maximum from May to Septem-
ber, the secondary minimum seen between these months at Makerstoun being wholly wanting; it is alsoa maximum in December, and,
unlike the Makerstoun result, the mean for December is the greatest ; it is a minimum in October and November, as at Makerstoun;
and it is a minimum again in April, about two months after the corresponding minimum for Makerstoun.
2d, When we compare the Greenwich monthly means for the 8 years 1842-9 with the Makerstoun monthly means for the same
years, both being reduced to the level of the sea, and to 32° Fahrenheit, we find the barometer at Greenwich higher than at Maker-
stoun in each month, and for the whole period as follows :—
Jan. Feb. March. April, May. June. July. Aug. Sept. Oct. Nov. Dec. Year.
in. in. in. in. in. in, in, in. in. in. in, in. in.
0167 = 0133 0:097 0-031 0014 ~~ 0-087 0-114 0:097 =: 0035 0-112 0140 0:146 0:098
Whence it appears that for the same (sea) level, the barometer, on the average of 8 years, is one-tenth of an inch lower at Maker-
stoun than at Greenwich, 4° 6’ farther south ; and that this difference of pressure varies with the month. The excess of the atmos-
pheric pressure at Greenwich over that at Makerstoun is a principal maximum in January, the coldest month; and it is a maximum
again in July, the hottest month ; it is a minimum in April and May, and again in September. It may be remarked, with reference
to this curious result, that the positions of Greenwich ‘and Makerstoun are much alike; nearly on the same meridian, and nearly
_ equi-distant from the eastern coast of the island. There is no doubt that the greater proximity of Greenwich to the Continent has
an effect upon iff temperature, the mean temperature of Greenwich being only 2° higher than that of Makerstoun in winter, while
it is 5° higher in summer.
3d, From the mean of 8 years the atmospheric pressure at Greenwich is 0:098 inch greater than at Makerstoun, but the excess
is by no means constant for each year; the excesses for each year are,—
1842. 1843. 1844. 1845. 1846. 1847. 1848. 1849.
in. in. in. in. in. in. in. in.
0-119 0:096 0:070 _ 0:096 0:102 0'116 0°104 0:079
The excess varies as much as half its mean value, and appears, on the whole, greatest in the hottest years and least in the coldest.
4th, The following coincidences may be mentioned. The epochs of the annual law of mean atmospheric pressure (especially those
for Greenwich) are nearly the same as for the annual law of magnetic declination (No. 9); and the law of differences of pressure
for the two places has nearly the same epochs as the annual law for the magnetic force (No. 136).
MAG. AND MET. oss. 1845 anv 1846.
XN
Xcll GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS
The mean pressure for the six months October to March is 0-100 inch less than that for the six months
April to September, while the range of the quarterly groups for the meteorological seasons is only 0-057 in.
Neglecting therefore the minor variations, the law of atmospheric pressure is distinguished by a maximum for
the six months during which the sun is north of the equator, and a minimum for the six months during which
itis south of the equator. The means for the separate quarters show no direct connection with temperature,
since April to June, and July to September have nearly the same mean pressure.
TABLE 84.—Mean Differences of the Daily Mean Atmospheric Pressure from the Monthly
Mean, for each Month in the Years 1843-6.
Feb. | March.
192. Annual Variation of the Differences of the Daily Mean from the Monthly Mean Pressure.—From
the means for four years in Table 84, the daily mean pressure of the atmosphere varied most in the months of
November and January, and it varied least in July. The following groups give the greatest and least quarterly
means,—
Nov. Dec. Jan. Feb. Mar. April, May, June, July, Aug. Sept. Oct.
in. in. in. in.
0-300 0°258 0:203 0:246
The daily mean height of the barometer differs on the average three tenths of an inch from the monthly
mean in the winter quarter, Nov.—Jan., and only two tenths of an inch in the summer quarter.
TABLE 85.—Monthly Means of the Diurnal Ranges of the Atmospheric Pressure for the
Years 1843-6.
March,
in. in. in. in. in. in. in. in. in.
1843 || 0-342 | 0-180 | 0-206 | 0-235 | 0-151 | 0-169 | 0-194 | 0-166 | 0-165
1844 -224 | -282 | .298 | -185 | -124 | -148 | -156 | -181 +134
1845 +320 | -243 | -236 | -222 | -131 -184 | -181 -164 | -223
1846 -283 | -202| -269 | -160 | -183 | -142| -172] -149 | -165
+252
198, Annual Variation of the Diurnal Range of the Atmospheric Pressure.—From the means of the diurnal
ranges for each month in the four years 1843-6, the diurnal range is least in May, and it is greatest in
January ; the following groups. give the greatest and least quarterly means,——
Noy. Dec. Jan. Feb. Mar. April, May, June, July, Aug. Sept. Oct.
in. in.
in, in,
0-269 0:226 0-161 0197
MoNTHLY VARIATIONS FOR THE ATMOSPHERIC PRESSURE. xelil
The monthly mean diurnal range does not vary greatly in the six months for which the sun is south of
the equator, nor in the six months for which it is north of the equator; thus, the mean range for the six
months October to March = 0-257 in., and for the six months April to September = 0-170 in. On the
whole, the diurnal range varies inversely with the monthly mean pressure. See No. 197 where the ranges of
the mean diurnal variations are considered.
TABLE 86.—Variations of the Diurnal Range of Atmospheric Pressure, with reference to the
Moon’s Age and Declination for the Years 1843-6.
After
Moon
1845. | 1846. farthest 1843. | 1844.
North,
E d.
27— 1
2— 5
6— 8
9—12
13—15
16—19
20—22
23—26
194. Variation of the Diurnal Range of Atmospheric Pressure with the Moon’s Age.—Investigations have
been entered into by different meteorologists for the purpose of exhibiting the effect of the varying position of the
moon upon the mean daily pressure of the atmosphere ; their success has been on the whole very doubtful. In
our latitudes it is not easy to extricate the laws of these variations on account of the magnitude of the irregular
| changes ; it was for this reason that, after discussing the daily mean pressures for the year 1843 with refer-
ence to the lunar arguments, the discussion of the diurnal ranges was substituted for that of the daily means ;
as it was conceived that the variation of the diurnal range might be considerable (as in the case of the oceanic
| tides, &c.), though the variation of the mean should be nearly or altogether zero ; such had been found to be
| the case for the magnetic declination. The results of these discussions for each year, and for the mean of four
| years, are given in the first part of Table 86. The results for the four years are wonderfully consistent, and
_ that of the mean of the four years may be expressed thus.—The diurnal range of the barometer is a minimum
"near opposition, and it is a maximum about the beginning of the second quarter, and immediately after con-
junction ; perhaps the intermediate minimum near conjunction is accidental and might disappear in a larger series.
The range of these mean numbers is very considerable, upwards of half-a-tenth of an inch, and it is probable
that had the means for single days of the argument been given, the range would have been nearly twice as
_ great. This result is wholly different from what we should have expected when comparing the oscillation of
the atmosphere with that of the ocean, and it appears difficult to offer an explanation for it ; we shall find how-
ever when we examine Table 91, that it is probably connected with the force of the wind; at least that obeys
the same law, the diurnal range of the barometer being greatest when the force of the wind is greatest.
195. Variation of the Diurnal Range of the Atmospheric Pressure with Reference to the Moon’s Declina-
tion.—The values for four years for this argument are given in the second part of Table 86; the results for
each year agree here also to a remarkable extent with that shewn by the mean of the whole four years. The
diurnal range of the barometer is a maximum when the moon is farthest north, it is a minimum when the
moon is south of the equator. This result is also connected with that for the force of the wind (see No. 201),
the diurnal range of the barometer being greatest when the force of the wind is greatest, and vice versa.
XC1V GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
TABLE 87.—Diurnal Variation of the Atmospheric Pressure for each Astronomical Season and
for the Year, deduced from the observations of the Years 1843-6. .
4
Mak. : Feb. May. Aug. i
Mean 5 March. June. Sept. p
i April. July. Oct. | :
in. a in, 7 in. in. .
+-0051 | +-0029 | + -0008 . ¢
+0011 |+-0003 | —-
—-0038 | —-0035
~-0062 | —-0080
—-0059|—-0117
—-0030 | —-0136
+0013 |—-0103
+ -0078 | —-0060
+-0108 |—-0006 | +- {
+-0107 |+-0024 |+- +: ;
4
.
ae ae
+ -0092 | + -0044
+ -0075 |+-0051
Table 87 has been formed thus :—The hourly means for each quarter were obtained for each year ; those for
1844 and 1845 were corrected for continuous barometric change as described in the volume for 1844, p. 422,
excepting that the change of pressure from 11" to 12", was considered equal to the mean of the changes from }
108 to 114 and from 12+ to 1", (instead of from 10" to 11" only): the hourly means for each quarter were
then combined in the manner already described for the magnetic declination, No. 26. :
TABLE 88.—Daily Epochs of Maximum and Minimum Atmospheric Pressure, with the Intervals
from Epoch to Epoch, for each Quarter, and for the Year.
Interval Interval Interval Interval M Paoch ,
from from from from ee ee
A ini i ini ; [axi the Two
Period: Minimum Min. Maximum Make Minimum Ain Maximum ‘Max. !
A.M. a A.M. he P.M. Te P.M. ka ee rks |
Max. Min. Max. Min.
h. m. h m h. m. h. m h a h. m. h. m. h. m. h. m. hm |
Nov. Dec. Jan. 5 15 5 10 10.25 3 40 Dy oo 6 55 9 O 8 15 3 42 9 40 |
Feb. Mar. Apr.|| 4 5 fa 1995} 4 15 3 20 5 10 8 30 7 35 3 47 9 42
May June July || 3 15 4 55 8 10 8 45 4 55 Gio 4-11. -0 4 15 3 35 | 10 5
Aug. Sept. Oct. || 4 15 4 45 9 0 6 50 3 50 6 10 10 O 6 15 3 ou 10) 4a
Year 4 10 6 10 10 20 5 30 3 50 5 40 9 30 6 40 B iat 1, 10 0 t
196. Diurnal Variation of the Atmospheric Pressure.—From Table 87, this consists of two maxima and
two minima in each quarter of the year: the approximate epochs in apparent time, as deduced from the projec- _
tions of Table 87 (see Plate IX.), are given in Table 88.
1st, The principal maximum occurs in the evening in spring, and in the forenoon in the other quarters;
the principal minimum occurs in the morning in winter and spring, and in the afternoon in summer and
autumn. <
2d, The morning minimum occurs earliest in summer and latest in winter, obeying something like the law —
of sunrise, though the difference of epochs is variable, the minimum occurring about 3 hours before sunrise ne
winter, and immediately before sunrise in summer: the epoch of minimum temperature had a nearly similar —
relation to that of sunrise, but the similarity of the relations of the two classes of facts is more apparent than —
real, since the temperature of the air varies little in winter from 62 p.m. till 82 a.m.
3d, The morning maximum occurs latest in spring and earliest in summer, the difference of the epochs
for the two seasons being nearly three hours.
PRESSURE OF THE WIND. XCV
4th, The afternoon minimum occurs earliest in winter and latest in summer, the difference of the epochs
being nearly three hours. The epochs of this minimum have some relation to those for sunset as the morning
minimum epochs had to sunrise, thus :—In winter, the morning minimum occurs about three hours before
sunrise, in summer the afternoon minimum occurs about three hours before sunset; in winter the afternoon
minimum occurs about one hour and a half before sunset, in summer the morning minimum occurs about half-
an-hour before sunrise.
5th, The afternoon maximum occurs latest in summer and earliest in spring ; the difference of the epochs is
two and a half hours.
6th, It is not easy to relate the variations of the epochs of the maxima to those of any other facts ; itis to be
observed, however, that the morning maximum occurs nearest noon in spring and farthest from noon in summer,
while the afternoon maximum occurs farthest from midnight in spring and nearest midnight in summer.
TABLE 89.—Whole Amount and Hourly Rate of the Change of Atmospheric Pressure from Epoch
to Epoch in the Diurnal Variation for each Quarter, and for the Year.
A,M. Minimum to | A.M. Maximum to | P.M. Minimum to | Pp. M. Maximum to
A.M. Maximum. | P.M. Minimum. P.M. Maximum. | A.M. Minimum, _ || Vole Oscillations.
Period.
Total. |PerHour.| Total. |PerHour.| Total. |Per Hour.} Total. |PerHour./}/ Sum. /|Per Hour.
——————— — —_ —| os =
in. in. in, in. in. in. in. in. in, in.
Noy. Dec. Jan. || 00-0308 +0-0060 | 0-0160 | 0-0044 | 0-0126 | 0. 0-:0275 | 0-0033 || 0-0869 | 0-0036
Feb, Mar. Apr. || -0210 | -0030 | -0140 | -0033 | -0180 | - -0250 | -0033 -0780 | -0033
May June July -0139 | -0018 | -0230 | -0026 | -0191 | - -0100 | -0024 -0660 | -0027
Aug. Sept. Oct. |) -0166 | -0035 | -0208 | -0030 | -0188 | - 0146 | -0023 -0708 | -0030
Year -0180 | -0029 | -0150 | -0027 | -0145 | - 0173 | -0026 || -0648 | -0027
197. The total oscillations from one turning point to the next are given in Table 89, with the hourly rate
of change; from these, we find that the change of pressure, from the morning minimum to the morning
| maximum, is greatest in winter and least in summer ; from the afternoon minimum to the evening maximum,
| it is least in winter and greatest in summer ; from the morning maximum to the afternoon minimum, it is least
| in spring and greatest in summer; from the evening maximum to the morning minimum, it is greatest in winter
| and least in summer. On the whole, when we compare the diurnal variations with respect to season, both as
to the epochs and relative amounts of the oscillations, from turning point to turning point, we arrive at the fol-
lowing conclusion :—1s¢, That the law of diurnal variation of atmospheric pressure at Makerstoun, is almost
| precisely the same in winter as it is in summer, if we substitute noon for midnight, and p.m. for a.m, in the
| former.* 2d, As the diurnal variation for spring is analogous to that for winter, and the diurnal variation
) for autumn is similar to that for summer, the same law of opposition holds for spring and autumn as for
summer and winter. See Plate IX.
3d, The whole diurnal oscillation is greatest in winter, and it is least in summer.
PRESSURE OF THE WIND.
198. In the volumes for the years 1843 and 1844, both the maximum pressures of the wind occurring
betwixt the hours of observations and the observed pressures within 7™ to 10™ at the hours of observation were
discussed ; as both discussions gave the same results, and as the latter make an approximation to the actual
‘continuous mean pressures, only the means of the pressures occurring within 7™ to 10™ at the hours of obser-
vation will be considered here.
* This curious fact, it seems to me, is wholly opposed to what may be termed the temperature theory of the regular diurnal
yariation of atmospheric pressure ; the best marked barometric oscillation at Makerstoun occurs while the temperature and pressure
of aqueous vapour are nearly constant, namely, in winter between 64 P.M. and 9} A.M,
MAG, AND MET. OBS. 1845 AND 1846. 2a
xcvl GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
TABLE 90.—Monthly Means of the Maximum Pressure of the Wind within 10™ at the Observation
Hours for the Years 1843-6.
Feb. | March.| April. | May. | June.
199. Annual Variation of the Approximate Mean Pressures of the Wind,—From the means of 4 years’
observations, the wind blew with the greatest mean force in January, and with the least mean force in Septem-_
ber. The mean pressure, however, varies little for the six months October to March, while the sun is south
of the equator; it is nearly constant for the three months, April, May, and June, diminishing gradually from
June to September. September is the month of least pressure in each year, excepting 1844; the month of
maximum pressure is more variable, January in 1843, November in 1844, December in 1845, "and Mareh i In
1846. :
;
TABLE 91.—Variations of the Pressure of the Wind with reference to the Moon’s Age and Declina-
tion for the Years 1843-6.
After
1943, | 1844. | 1845. | 1846. fean. | Moon 1843, | 1944.
farthest
North.
d. d.
27— 1 9}
oa . : \ i a
6— 8
9—12
13—15
16—19
20—22 | ]
DBI 5; B 4 . = . 7.
200. Approximate Mean Pressure of Wind with Reference to the Moon’s Age,—The mean result from the
first portion of Table 91 shews, that the pressure of the wind was a maximum at conjunction and a minimum near
opposition. The result for each year shews a well-marked minimum near opposition, and a maximum near
conjunction. It has already been noticed (No. 194), that the diurnal range of the atmospheric pressure obeys
a similar law; that is to say, for this argument, the diurnal oscillation of the statical pressure of the atmosphere
is a maximum when its dynamical pressure is a maximum.
201. Approximate Mean Pressure of the Wind with Reference to the Moon’s Declination.—From the last
column of Table 91, the mean result of 4 years’ observations, it appears that the pressure of the wind is a maximum
when the moon is farthest north. This result is shewn with some distinctness in each year, excepting in 1843,
for which the maximum occurs when the moon is farthest south ; there is, however, the appearance of a maxi-
mum near the time of the moon’s farthest southerly position in the years 1845 and 1846; and, indeed, in the
mean for the 4 years ; it is probable therefore that the minimum pressure of the wind occurs when the moon
is near the equator. The same relation, between the diurnal oscillation of the statical pressure of the atmos-
phere and its dynamical pressure, holds as in No. 200.
si gpa?
a
DIURNAL VARIATIONS OF THE PRESSURE OF THE WIND. xevu
TABLE 92.—Diurnal Variation of the Maximum Pressure of the Wind within 10™ at the Observation
Hours, for each Astronomical Season and for the Year, deduced from the Observations of the Years
1843-6.
Mak. Nov., Feb., May, August, Mak Nov., Feb., May, August,
Mean Dec., March, | June, Sept., Year Mean Dec., March, June, Sept., Year.
Time. Jan. April. July. Oct. Time, Jan. April. July. Oct.
h m. Ib. 1b. Ib. 1b. 1b. lay aay Ib. Ib. Ib. Ib. Ib.
12 10 || —0.07 | —0-21 | —0-20 | —0-12 |} —0-15 O 10 || +0-13 | +0-25 | +0-23 | +0-17 || +0-19
13 10 || —0-10 | —0-15 | —0-19 | —0-08 |} —0-13 1 10 || +0-11 | +0-29 | +0-27 | +0-22 || +0-22
14 10 |) —0-13 | —0-14 | —0-21 | —0-09 || —0-14 2 10 | +0-06 | +0-32 | +0-28 | +0-19 || +0-21
15 10 || —0-03 | —0-08 | —0-22 | —0-10 |} —0-11 3 10 | +0-02 | +0-26 | +0-25 | +0-14 || +0-17
16 10 || —0-05 | —0-10 | —0-18 | —0-10 || —0-11 4 10 || —0-03 | +0-14 | +0-18 | +0-11 || +0-10
17 10 || —0-02 | —0-12 ; —0-15 | —0-09 || —0-09 5 10 | +0-02 | +0-03 | +0-14 | +0-02 || +0-05
18 10 || —0-05 | —0-08 | —0-11 | —0-09 || —0-08 6 10 || —0-03 | —0-05 | +0-03 | —0-05 || —0.02
19 10 |} —0-05 | —0-10 | —0-03 | —0-10 || —0-07 7 10 || —0-01 | —0-15 | —0-06 | —0-07 || —0-07
20 10 || —0-03 | +0-03 | +0-13 | —0-04 || +0-02 8 10 || +0-02 | —0-19 | —0-13 | —0-10 || —0-10
21 10 || +0-04 | +0-11 | +0-17 | +0-07 || +0-10 9 10 || —0-02 | —0-14 | —0-19 | —0-10 || —0-11
22 10 | +0-07 | +0-21 | +019 | +0-15 || +0-15 | 10 10 || +0-02 | —0-16 | —0-21 | —0-13 || —0-12
93 10 || +0-11 | +0-24 | +0-23 | +0-20 || +0-19 | 11 10 0-00 | —0-21 | —0-19 | —0-08 || —0-12
202. Diurnal Variation of the Mean Pressure of the Wind.—It is evident from the means in Table 92,
that 4 years’ observations are too few to destroy the irregularities produced by the large atmospheric disturb-
ances ; the following, however, are the approximate epochs of maximum and minimum :—
Minimum. Mean. Maximum. Mean.
Winter, Nov., Dec., Jan., 25 10™ a.m. 8 36™ a.m. 04 10™ p.m. 35 p.M.—11> p.m.
Spring, Feb., March, April, 112 40™ p.m. 7® 56™ a.m. 1 55™ p.m. 5h 39m py.
Summer, May, June, July, 9 p.m.—4" a.m. 72 21™ aM, 15 45™ p.m, 6» 30™ p.m.
Autumn, Aug., Sept., Oct., 82 p.w.—7) am. 8» 32™ a.m. 15 Om p.m. 5h 27m py,
Year, 12 a.m. (EAE 1" 30™ p.m. 5> 53™ p.m.
| It will be seen that the variation of the pressure of the wind obeys a law analogous to that of the variation of
| temperature, while the sun is above the horizon ; it follows the ascent and descent of the sun, however, more
| closely than the temperature: thus, in winter the mean pressure of the wind occurs almost exactly at sunrise
and at sunset, and the maximum occurs immediately after mid-day, in all instances anticipating the correspond-
| ing epochs for the temperature by an hour or more. A similar difference is observable in each quarter; this
will be seen most satisfactorily in Plate IX., where the dotted curves of wind pressure are projected on the same
mean or zero lines; as the curves for the temperature of the air: while the day portions of the curves are evi-
| dently connected with each other, this is not the case during the night ; the minimum pressure of wind has upon
the whole the same relation to midnight that the maximum has to mid-day. In winter the pressure varies
irregularly from hour to hour during the night; in summer and autumn the pressure is nearly constant for
some hours before and after midnight. When we consider the mean for the year, we find the ordinates of
equal value in the day portion of the curve at times equidistant from 1" p.m., and in the night portion of the
curve, from 1" 4.m.: the pressure of the wind, therefore, is related more directly to the position of the sun than
to the temperature of the place, especially during the night.
The range of the mean diurnal variation is least in winter, and it is greatest in spring and summer—the
| Tanges are—
Winter = 0:26 Ib. Summer 0:50 Ib. Autumn 0-36 Ib.
Spring 0°53 Ib. Year 0°37 lb.
xevli GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
TABLE 93.—Number of Observation Hours in 24 at which (within 10™) the Wind blew with a force of
0-1 Ib. or upwards, for each Month in the Years 1843-6.
March. | April.| May. | June.
11-6 | 12-9 | 15-3 | 17-7
14-7 | 14-3 | 10-2 | 16-0
20-3 | 16-2 | 20-7 | 18-3
14-6 | 17-2 | 19-5 | 15-7
15-3 | 15-1 | 16-4 | 16-9
203. Annual Variation of the Number of Observation Hours at which the Wind was observed to blow
with a force of 0-1 lb, or upwards,—Four years’ observations are evidently insufficient to shew this annual
variation free from irregularity. The wind blew during the greatest number of hours in October and in June,
and it blew during the least number of hours in January. See Table 93.
TABLE 94.—Mean Pressure of the Wind while blowing, for each Month in the Years 1843-6.
July. | Aug. | Sept.
Tb. 1b. Ib.
0-56 | 0-45 |] 0-38
0-33 | 0-56 | 0-46
0-53 | 0-50 | 0-43
0-26
0-50 | 0-44
204. Annual Variation of the Mean Pressure of the Wind while blowing—We have in No. 199 consi-
dered the annual variation of the mean pressure of the wind with reference to time, the sums of the observed
pressures being divided by the whole number of observations ; in the present case the sums of the observed
pressures are divided only by the number of observations for which the wind was blowing: thus, in November
1843, the wind was observed blowing at little more than half the whole number of observation hours; conse-
quently the mean pressure with reference to the whole number of observations for that month (Table 90) is
only a half of the mean pressure with which the wind was observed blowing (Table 94). The law is the
same for both means, but it is better marked in the present case than in that of No. 199. The wind blows with
the greatest force in January, and with the least force in September.
205, Diurnal Variation of the Number of Observation Hours at which the Wind was observed blowing.
—The following are the mean numbers of times, at which the wind was observed blowing 0:1 lb. or upwards,
in the four years 1843-6 :—
1b jham. gh gh gh 5h 6h 7h gh gh 4ph qjh oh jJhpm, 2h gh 4h 5h 6h 7h gh gh Yoh 4h
150 156 155 164 162 163 176 190 214 224 242 251 262 266 266 258 249 240 225 211 186 169 162 160
The wind blew most frequently at 1" 40™ p.m., the epoch of maximum temperature ; it blew seldomest about
1® 4M. ;
206. Diurnal Variation of the Mean Pressure of the Wind while blowing (see No. 204). The following
are the means for each hour, as deduced from the observations for the four years 1843-6 :—
12h baw. 25 gh 4h 5h gh 7h gh gh Joh ih oh jhpm, 2h gh 4h 5h gh 7h gh gh 40h 41h
Ib. Ip) lbs Jib.) by ibs lbs @ iba ibe olben olbsaueelbsmeibe Ib; “Ib, ‘Ib, Ib. “Ib; Ub. “1b, py) | aba
0:67 0:67 0°65 0:69 0:70 0:71 0:67 0:64 0°70 0:77 0:78 0°80 0°78 0:80 0:80 0:75 0°70 0:67 0°61 0°58 0°61 0°65 0:67 0°69
a PRESSURE AND DIRECTION OF. THE WIND. Xclx
_ These numbers still present several irregularities ; on the whole, however, the wind blows with the greatest
_ force about 15 p.m., and with the least force about 7" p.m., or about an hour after noon and an hour after sunset
respectively ; another minimum of force occurs at 7% a.m., an hour after sunrise, and a secondary maximum
occurs between 11" p.m. and 5 a.m., the exact epoch is not deducible from these means; the means for 1844
and 1845 only, place it near midnight.
ie 207. Yearly Mean Value and Direction of the Resultant Wind.—From the last line of Table 95, it appears
_ that the direction of the resultant wind was nearly constant in each of the three years, 1843, 1844, and 1845.—
_ 1846 appears to have been quite anomalous; in each of the former years there are eight or nine months in
which the resultant wind blows from between west and south, for only two or three of these months is the
resultant nearer south than west; but in 1846 there are ten months, for which the resultant wind blows from
between south and west, and for eight of these it is nearer south than west.
a If we neglect the year 1846, the winds at Makerstoun are equivalent to one continuous wind blowing from
nearly WSW. with a force approximately of about two-tenths of a pound on a square foot of surface.
_ TABLE 95.—Values and Directions of the Resultant Winds, with the Sums of the Pressures of the
Wind resolved into the four Cardinal Points of the Compass, for each Month of the Years 1843-6.
1843. 1844. 1845. 1846. 1843-6. 1843-6.
' Sums of Pressures ob-
* served at the 24 Obser-
Resultant. Resultant. Resultant. Resultant. vation Hours for 100 Resultant.
Days in each Month,
resolved into
‘|| Mean.| Direction. | Mean.| Direction. | Mean. Direction. | Mean.| Direction. N. EK. S. | W. || Mean.| Direction.
Tb. ° Ib. ° Tb. ° 1b. ° Yb. | Ib lb. | Ib Ib
0:93] W. 17S. | 0:27|W. 8S 0-36] S. 29 W.| 0-37| S. 43 W.)| 172] 45| 700/933 || 0-43 | W. 29. 5S.
0-43) N. 8 W.) 0-14) W. 37 N. | 0-22} W. 9S. | 0-38} W. 34S. || 534] 161 | 408/565 || 0-18| W. 17-3 N.
0-04/ S. 31 E.| 0-20| W. 5N.| 0-39) W. 2S. | 0-52) S. 38 W.]| 332 | 153 | 580 | 667 || 0-24) W. oi By si
0-26! W. 23S. | 0-35} W. 328 0-15) N. 7 H.| 0-21) N. 24 E. || 423 | 174 | 406 | 423 |} 0-10 | W. Q9N.
0:20) E. 4N./| 0-16) N. 24 E. | 0-28} N. 11 BH. | 0-32) S. 44 W.] 446) 377 | 313/317 || 0-06) N. oe 4 RE.
0-12} N. 4H.| 0-34] W. 20S 0-34] S. 44 W.) 0-30} S. 39 W.] 223 | 133 | 540/549 || 0-22) W. 37-4 S.
0-29| W. 37S. | 0:06| W. 4N.| 0-13} W. 43 S. | 0-38) S. 44 W.]| 140} 88] 445 | 451 || 0-20} W. 40-0 S.
0-18| S. 26 W.| 0-18} W. 15S 0-16) W. 29 N.| 0-07] S. 30 W.)| 186} 79 | 292/)332 || 0-11] W. 22-78. |
0-06| W. 24 N.| 0-07] W. 33S 0-15| W. 29 S. | 0-05] S. 34 W.} 161/111 | 238 | 267 || 0-07} W. 26-1 S.
0-19| W. 18. | 0-23} S. 43 W.| 0-45} W. 34S. | 0-08) W. 35 8. || 249/ 156 | 543] 613 || 0-23) W. 32-8 S. |
0-33 | W. 24S. | 0-14) S. 23 E.} 0-44} S. 32 W.| 0.28) S. 15 W.j/ 176/192} 705) 505 || 0-26|] S. 30-7 W.
0-69| W. 40 S. | 0-06! E. 30S 0-69| W. 168. | 0-24) N. 40 W.|| 262) 42) 546) 790 | 0-33) W. 20-8 S.
0-20} W. 21S. | 0-13} W. 21S 0-23 | W. 23 S. | 0-19} W. 41S. || 274] 143 | 477 | 535 0-18] W. 27.38.
208. Annual Variation of the Force and Direction of the Resultant Winds.—The details of these discus-
sions will be found in pages 64 and 84 of this volume, p. 295, 1848, and p. 4384, 1844. From Table 95, it
appears that—
1st, The sums of pressures of the northerly winds are greatest in the months of February, March, April,
and May ; they are least in the months of July, August, September, and November.
2d, The sums of pressures of the easterly winds are twice a maximum and twice a minimum in the year;
_ they are a principal maximum in May, and a secondary maximum in November; they are a minimum in July
‘and August, and in December and January.
3d, The sums of pressures of the southerly winds are greatest in November and January, and they are
Teast in September.
4th, The sums of pressures of the westerly winds are greatest in December and J anuary, and they are least
"3 n September.
5th, When we examine the approximate mean forces of the resultant wind for each month, we find that on
the whole they exhibit two maxima and two minima in the course of the year. The resultant wind is a principal
“maximum in January, and a secondary maximum in June and July ; it is a minimum in May and in September.
| 6th, The direction of the resultant wind is from 17° north of west in February, from 4° north of west in
April, from 24° east of north in May, and from between west and south in the remaining nine months of the year.
MAG, AND MET. OBS. 1845 anv 1846. ; 2 b
c GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
Of the nine months in which the resultant wind is from between west and south, there are eight, for which it
occurs between W. 20° S., and W. 40° S., or nearly between WSW. and SW.; in November the resultant
wind is most southerly, coming from W. 59° S. nearly SW by S.
209. If we compare the mean of the pressures observed in all directions (last line of Table 90), in each
month, with the resultant mean pressure of the wind, the ratio will evidently give some measure of the varia-
bility of the wind; where, by variability is meant the amount of opposedness of the masses of air in motion
during the period considered, without relation to the frequency of the oppositions ; the ratios are for each month as
follow :—
Jan, Feb. Mar. April, May, June, July, Aug. Sep. Oct. Nov. Dec.
15 3'l 2°3 4-6 75 2°0 1-7 2°35 34 2°2 2:0 16
Of the whole amount of air in motion during each month, the greatest proportions proceed from one quadrant
or direction in December and January, the coldest period of the year, and also in July, the hottest month of
the year; the winds are most equally distributed in all the quadrants in the months of April and May; a
secondary maximum of variability occurring again in September.
210. Diurnal Variation of the Resultant Mean Pressure of the Wind.—The following are the values of
the resultant mean pressure for each hour, as deduced from the observations for the years 1843-6 :—
12h ham, gh gh 4h 5h = gh 7h gh gh gh «yh = =oh yhpy, gh gh 64h bh) gh) 7h hs gh:s«dagQh $s gh
lb. Ib. Ib. Ib) “Ib. Iby ab. Ib. 9 Th. Ib. - 1b. “1b Ibe Abaeeib. dbs 1b. 41b. abe 1b, eee
015 0:15 0:16 0:17 0:17 0:17 0:16 0°16 0°21 0-23 0:25 0:25 0:25 0:27 0-24 0:21 0:19 0-18 0:15 0°15 0°15 0°15 0°15 0-16
From these means the maximum occurs before 1" p.m., and the minimum occurs between 6" p.m, and 1" a.m.
211. Diurnal Variation of the Direction of the Resultant Wind,—It was first pointed out in the volume
of Makerstoun Observations for 1843, p. 300, that the direction of the resultant wind had a diurnal variation,
being more towards the south of west in the morning and evening than about mid-day; this result was con-
firmed with great distinctness in the discussion of the Observations for 1844 (vol. 1844, p. 438, and Plate
XVI.) ; an equally distinct result has been obtained from the observations for 1845 (p. 64 of this volume) ;
this has not been the case with the observations for 1846, a year which, when compared with the others, was ano-
malous in all its resultant directions (see No. 207). The following Table contains the means of the resultant
directions of each month for the years 1844 and 1845, and for the four years 1843-6, each year receiving an
equal value, and the means for the four years being obtained, as described No. 26.
TABLE 96.—Diurnal Variation of the Direction of the Resultant Wind.
Mean of Mean of
1844-5. 1843-6. 1844-5. 1843-6.
=
I
‘7
°
3
. 35
444244444543
44544445453
4444244585423
4445444454455
—a
The range of the variation for the four years 1843-6 is somewhat diminished by the anomalous numbers for
1846; but both series agree in shewing the resultant wind to be most westerly about 3" p.m., and most —
southerly between 8" p.m. and 4 a.m.
5.
PRESSURE AND DIRECTION OF THE WIND. cl
212. The following numbers are the ratios for each second hour of the hourly mean pressures observed
in all directions (obtained from the year-column of Table 92, by the addition of 0-46, the mean pressure for
_ the 4 years), to the resultant mean pressures, No 210.
i 12h 2ham, 4h 6h gh 102 Gis, OM oR oy sak 6h gh 10»
D1. 21 OK D3 B03) 2-4 2°6 2°83 9-9 2°8 2-4. mp}
We may conclude, as in No. 209, that of the total mass of air in motion at each hour, the greatest proportion
_ was from the same quadrant or direction at 2 a.m., and the greatest proportion was from opposite directions
at 4° p.m,
213. Times which the Wind blew from the 16 Principal Points of the Compass.—The times which the
wind was observed blowing from each point of the compass, at the observation hours, are given for each year
_ in the previous and in the present volume; for 1843 and 1846 the sums for 12 two-hourly observations are
_ given, having doubled these to make them comparable with the means from the hourly observations of 1844
_ and 1845, the sums for four years for each point were obtained: the sums for each of the 16 principal points
_ were then formed in this manner ;—the sum of the times in the north was made equal to half the sum of the
_ times in N by W., plus half the sum of the times in N by E., plus the sum of the times observed in N. ; and
similarly for each of the other 16 points.* The sums thus obtained from the four years’ observations are as
follow :—
N. NNE. NE. ENE. E. ESE. SE. SSE. Ss. SSsw. SW. WSW. W. WNW. NW. NNW.
4 779 =-1818 1668 867 431 77 329 575 1088 2672 4212 1949 1198 726 932 866
The wind blew most frequently with a pressure of 0-1 Ib., or upwards, from a few degrees south of SW., the
_ number of times diminishes rapidly to WNW., increases slightly in NW., diminishes from thence to N., it then
ied considerably to a few degrees north of NE., where the secondary maximum occurs almost diametri-
- cally opposite to the principal maximum of frequency ; from NE. the frequency diminishes to a few degrees
south of ESE., where it is a principal minimum, a secondary minimum occurring in the opposite point; from
_ ENE. the number increases rapidly to the maximum at SW. See curve 6 in the figure.
x) \ 6 ee & Ss eo
Radial scales. a, 1 inch= 2000 lbs. 6, 1 inch = 2000 times. c, 1 inch=1 Ib.
* The combination into the 16 principal points was rendered necessary by the fact, that in observing the direction of the wind
from an oscillating vane-index, there is a tendency in all cases of doubt to prefer the principal to the secondary point, for which
, teason the numbers of observations for each of the 16 principal points were always greater than for either of the two adjacent points.
cu GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
214. Sums of the Pressures with which the Wind blew from each of the 16 Principal Points of the Com-
pass.—Following the same procedure as in No. 213, we obtain the following sums of pressure from four years’
observations, of 24 a-day, the sums being of the maximum pes observed within 10™ at the hours of obser-
vation. (See No. 198.)
N. NNE. NE. ENE. E. ESE. SE. SSE. Ss. SSW. Sw. wsw. WwW. WNW. NW. NNW.
Ib. Ib. lb. Ib. Ib. Ib. Ib. lb. Ib. Ib. Ib. Ib. Ib. Ib. Ib. Ib.
711 757 722 442 217 84 163 362 749-1945 3411 1262 990 693 689 654
The sums of pressures obey nearly the same laws as the frequency with which the wind blew ; the greatest sum
of pressures occurred a few degrees south of SW.; the sum then diminishes to W., varies little from WNW. to
N. being, on the whole, less at NNW. than for the adjacent points ; it becomes a secondary maximum about —
NE: by N., a principal minimum at ESE. (See curve a in the figure, p. ci.)
215. Mean Pressure with which the Wind blew from each of the 16 Principal Points of the Compass.—Di-
viding the sums of pressures for each of these points (No. 214) by the number of observations for which the
wind was observed blowing at 0-1 Ib., or upwards (No, 213), we obtain the following mean pressures with which —
the wind blew from each of the 16 points :—
N. NNE. NE. ENE. E. ESE. SE. SSE. S. SSW. SW. Wsw. Ww. WNW. NW. NNW. |
lb. lb. Ib. Ib. Ib. lb. lb. Tb. lb. lb. Ib. lb. Ib. Ib. Ib. lb.
0-91 057 043 0-51 0:50 047 050 063 0-69 0:73 0-81 0°65 0°82 095 O74 O75
The wind blew with the greatest force from WNW. and N., and with the least force from NE. and ESE.,
but the mean force was nearly constant between NE. and SE. The mean force with which the wind blew be-
tween NNE. and SSE. = 0-52 lb., between NNW. and SSW. = 0-78 Ib., or in the ratio of 2 to 3. When
the projection of the previous values upon the directional radii are connected, a very symmetrical figure is —
formed, having three minima at intervals of about 80°, namely, at NE., NW by N., and WSW. (See curve
c in the figure, p. ci.)
Motions OF DIFFERENT CURRENTS OF AIR.
216. Difference of the Directions of Motion of the Upper and Lower Currents of Air.—The mode in which
the directions of motion of the clouds were observed is described in the introductions to the previous,volumes
in the section, “ State of the Sky.’’ The process by which the results for the differences of motion of the dif-—
ferent currents were obtained by the combination of simultaneous observations, will be found stated in the
volume for 1844, p. 440. The detailed results for each of the four years 1843-6 are given in separate tables in
the present and in the previous volumes. The total number of comparisons of the currents of seud, cirro-stratus,
and cirrus, with the surface-current, and of the cirro-stratous and cirrous-currents with the scud-current, was in
1843, 865 ; the numbers of results (each of from five to two comparisons) were in 1844, 995 ; in 1845, 964;
and in 1846, 541. In the discussion for 1843 only one or two simultaneous observations were termed a com-
parison ; from five to two simultaneous observations were termed a result for the three following years (see 1844,
p. 440); but as the values of the final results for each year were not considered greatly different, the numbers
of comparisons of 1843, diminished by a tenth, have received the weight of the results in the following years,
and the numbers of results for 1846 were increased by a half in the combinations given below. The weights
of the four years 1843, 1844, 1845, and 1846, were taken on the whole, therefore, as 779 : 995 : 964: 811.
217. The scud-current includes the cumulus ; the cirro-stratous current includes also the cloud termed in the
Makerstoun Observations the cirro-cumulo-stratus : this cloud, so frequently seen, has received no name in
Mr Howarn’s classification ; it belongs to the region of the cirro-strati, and is composed of great numbers of
clouds like small cirro-strati, arranged with a cirro-cumulous disposition. After this name had been applied to”
this cloud for some time, I discovered that Mr Howarp had given it already to the Nimbus. The cirrous
current includes the cirro-cumulus. The order of reckoning being from north, by the east, south, and west,
one current is considered positive of another when it proceeds from a point more southerly j in the eastern semi-
circle and more northerly in the western semi-circle.
218. When we consider the results for each quadrant, we find they present differences, both in the values |
and signs of the mean differences of the directions of motion ; in three of the quadrants, however, namely E to
S., S to W., and W to N., the signs are the same; in every case the mean upper currents proceed from points
positive of the currents below them. In the quadrant S to W. by far the greatest number of results have
been obtained, and they are by far the most regular and distinct. Thus, in 774 results, each obtained from several
comparisons of the current of scud with the surface-wind, 664 shewed the scud-current to proceed from a point
=o
Morions OF DIFFERENT CURRENTS OF AIR. Clil
24° more northerly than the surface wind ; while there were only 58 results shewing a more southerly motion,
and 19 in which both currents proceeded from the same point. It might be supposed that the regular differ-
ence of these currents was due to some peculiar configuration of the surface of the country around the Obser-
Yatory, but this is disproved by the results of the comparison of the upper currents with each other ; thus, the
cirro-stratous current, compared with the scud-current, shews on the average of 255 results that the upper
eurrent proceeds from a point 14° more northerly than the lower current: a similar result is obtained from a
comparison of the cirrous current with the scud-current.
TABLE 97.—Differences of the Directions of Motions of the Lower and Upper Currents of Air, as
. deduced from the Comparisons of the Direction of the Wind, and the Motions of the Clouds,
for the Years 1843-6.
Quadrant N. to HE. Quadrant HE. to 8. Quadrant S. to W. ‘Quadrant W. to N.
purrents, Mean | Mean || No. of | Me™ | Mean || No. of | Mean ea. No. of | Mean | ay
Fa Diffs. of! Result. || Results. Diffs. of Result, || Results. Diffs. of ote Results.|2 iffs. of Raat
Motion. Motion. Motion. Motion.
‘ 297 | 493 76 | +24 664 | +24 166 | +20
Scud minus Pte) eee ooops arg gull ageelll Sy 30| 290) | 57 0) a9) | GPG
Wind. 12 0 9 0 19 0 15 0
: : 64 | +40 46 | +31 37 | e400 ise aaa
Cirestr. menus!) 4g | 51 | +42 ]| 11 |.-25| +20] 43 | -19| +33 38 | -35 | 4411
Wind. 3 0 1 0 12 0 6 0
; ; 50 | +36 41 | +21 1900.) 27 107%, | 226
ee menus\ | 59 --| 37-4 || 11 -| ~26| 4-9) 61: | —18 | +414 | 79 | —33°| 41
Seud- 16 0 15 0 34 0 27 0
! . 20 | +58 15 | +60 190 | +45 al eae
Cirrus minus 16.) 59s 0 Oma: <26) y/o 2ulac- 30 Me) i 4th
aad. D0 0 1 0 10 0 e 0
j : 20 | +35 [ee 54 107 | +36 81. | +97
Cirrus minus | 17 | =45 | =—2 Oe BAe S838 OG a) OO SS Cul Adelle
Seud. 2 0 1 0 12 0 13 0
219. It happens frequently that comparisons of the motions of two currents are obtained when the others
do not exist, or are not evident from the absence of clouds within them or from the masses of clouds in the lower
current ; it is for this reason that the comparison of motions above, obtained from observations partly simul-
taneous and partly not, are to a considerable extent independent of each other ; yet it will be seen that they in
general confirm each other. Thus, the differences of the mean results for the first two comparisons (in Table
97) should give the difference for the third ; so in the quadrant S. to W. we have 33°—20°= + 138°; and the
partly independent comparisons for the cirro-stratous minus the scud-current, give +14°; and as the differ-
ences of the first and fourth comparisons should give the fifth (in Table 97), we have 36°—20°= +16°; and
the partly independent comparisons for the cirrus minus scud, give +20°. We obtain similar results in the
quadrants E. to 8. and W. to N., but the differences of the motions are less marked. This appears to be due
chiefly to the greater proportion of negative results in these two quadrants. The means for the positive results
do not differ greatly in any of the quadrants. In the quadrant N. to E. we find all the three cloud-currents
|" positive of the surface-current, but only to the extent of 2° in the case of the cirro-stratous current; while the
cirro-stratous and cirrous currents appear on the whole 1° or 2° negative of the scud-current. These differences
| appear due to causes belonging chiefly to the sudden appearances of the north-east winds, which are chiefly sur-
| face-winds, and are nearly or altogether unconnected with the upper currents.
220. When we combine the results in the four quadrants for each class of comparisons, we have the fol-
lowing means :—
Scud-current minus surface-current, mean of 1434 results, = +4+14°5
Cirro-stratous current minus surface-current, mean of 754 results, = +22°8
| Cirrous current minus surface-current, mean of 349 results, = +29°6
| Cirro-stratous current minus scud-current, mean of 683 results, =4+ 6°9
|" Cirrous current minus scud-current, mean of 389 results, = +137
MAG. AND MET. oBs. 1845 anp 1846. Qe
Civ GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
It appears, then, that if we take the mean direction of the surface-current as W. 21° S., the directions of the
four currents will be nearly as follow :—
Beralieniad direction of the surface-wind (No. 207), W. 21°S.
scud-current, Wevwidt hee
++ cirro-stratous current, Wr ot
- cirrous current, Wi.85 Se
The mean resultant direction for the three cloud-currents, giving each an equal value, is W. 1° N. The mean
resultant direction of all the currents, giving each an equal value, is W. 4° S.
221. If we neglect the distinctions of the upper currents, and consider merely the differences of all the —
results for the cloud-currents compared with the surface-wind, we obtain the following numbers :—
Quadrant N. to E., 499 results, mean upper current minus surface-current, = + 5°8
see cee ees 1 a eee a ee em cc ee Se Ee
cee eeeeee Bodo Wey TORO TIT Masanghoacrwmaae beeneteceeteeeee nt. oles 5 soc clhilcc aimee: Ameer anna
bee tee eee Sa EE LCS a RP ete arn, TAA AE ACEROPEE REPENS. ENS
The mean upper current, therefore, is least positive of the surface-current in the quadrant N. to E., and it is
most positive in the quadrant 8. to W.; the mean result for each couple of opposite quadrants is nearly the
same, namely, 15° and 16°.
222. If we compare in a similar manner the mean cirro-stratous and cirrous current with the scud-cur-
rent in each quadrant, we have,—
Quadrant N. to H., 157 results, mean cirro-stratous and cirrous current minus scud-current, =— 12
Soe He. 4p Rigl)) BO™. vines Toqet apg egies vole v en ge aaa heme MMR oc 6+ = - ch yucgergs te ee
seman S. tO. Wa, SBE | oso cg yroieasarigge wae qasoiyeaas mathe MCRAE cr go swe «oy otetheias uel am a
fan ioe We $0 Whey SEO a ccums oc crue vagggcnge nes ava oto ppt eee ED ene cco aa « ex fyncee eat mee te ee
In the quadrant N. to E. the mean of the two upper currents seems to differ nothing from the scud-current, and ©
nearly the same seems to hold for the quadrant W. to N.; but in the southern quadrants the mean upper cur-
rent is positive of the scud-current 16°.
223. It appears, then, from the previous numbers, that the mean upper current always proceeds from a point
positive of the direction of the swrface-current, and that the motion of the mean of the higher currents, compared
with the motion of the scud-current, obeys the same law in the southern quadrants. These results are in accord-
ance with the conclusions from the causes of the oblique motions of the aérial currents. Currents of air pro-
ceeding northwards from more southerly positions retain a portion of the excess of eastward velocity of the places
from which they start ; hence the south-easterly winds become more southerly, and the south winds become more —
south-westerly, as they proceed northwards ; the extent of the change of direction depending on the greater or
less rapidity with which they lose their excess of eastward velocity and acquire that of the more northerly lati- _
tudes on which they move. This loss of eastward velocity will depend upon the proximity of the aérial stratum —
to the surface of the earth, and therefore the lower currents of air will lose more of their eastward velocity than i
the higher currents, and the upper current of southerly winds will become more westerly than the lower cur- —
rents. If, in considering the currents of air which proceed southwards from more northern latitudes, we re- _
member that the lower currents, from their proximity to the surface of the earth, acquire the greater eastwa
north siguld become less easterly than the upper current. This, it will he observed, agrees with the results 4
previously obtained ; we find, however, in the northern quadrants, that the scud-current differs less from the -
surface-current than it does in the southern quadrants ; this, it is conceived, is due to the fact that this ae
js nearer the surface in the northern than in the southern quadrants : it may, however, be due also to the ~
greater proximity of the origin of the currents. We find also that the mean upper currents differ little or —
nothing from the scud-current in the northern quadrants ; it is only necessary to examine the numbers in Table _
97 to see that this is not due to the smallness of the differences of motions of these currents, but to the num-
bers of positive and negative results beg more nearly equal. It has been frequently observed that when the
lower current of scud is from a north-easterly point the current of cirri is from a north-westerly point ; these
currents could not have had the same origin, and therefore the explanation of the differences of motions given —
above cannot apply ; this difference of origin occurs in all the quadrants, and diminishes the apparent effect of
the variable velocity of the earth’s surface ; it occurs seldomest in the south-west quadrant.
EXTENT OF Sky CLOUDED. cv
EXTENT OF SKY CLOUDED.
224. The Mean Extent of Sky Clouded, from 8 years’ observations, =6°98, totally clouded, being = 10-0.
TABLE 98.—Monthly Means of the Estimated Extent of Clouded Sky, the whole Sky covered being 10,
for the Years 1842-50.
March, | April.
225. Annual Variation of the Extent of Clouded Sky.—In the mean of 8 years the sky was most clouded
in July and least clouded in December ; the change from month to month is by no means regular ; on the whole,
however, the extent of sky clouded is greatest for the 5 months April to August, and it is least in the 4
months September to December. The means for these groups of months are as follow :—
Jan.—Mar.=6:94. April—August=7:29. Sept.—Dec.=6-63.
The means for the meteorological quarters are,—
Winter, Dec._Feb.= 6:68. Spring, Mar—May=7'14. Summer, June—Aug.=7'31. Autumn, Sept—Nov.= 6:79
The least extent of sky clouded for any month in the 8 years occurred September 1843 = 5:26.
The greatest extent of sky clouded for any month in the 8 years occurred July 1846=8-71.
The mean for the month of December in each year was less than the mean for the year ; and the mean for the
month of July in each year was greater than the mean for the year.
} 226. Variation of the extent of Clouded Sky, with the Moon’s Age.—It is well known that no heat has been
detected in the moon-light even with the aid of the largest parabolic reflectors ; it was conceived possible, how-
ever, that though no thermal indication could be obtained at the surface of the earth, yet there might be some
found in the dissipation or formation of clouds in the upper regions of the atmosphere; the observations of
the extent of clouded sky for 1843 were accordingly discussed for this purpose in the volume for that year,
page 303: the result was very indefinite; it was remarked, however, that as no observations were made in
that year between 9" p.m. and 5* a.m., the period when the moon’s heating effect must be greatest, little else
could have been expected. In the volume for 1844, p. 443, the discussion was repeated ; from it the extent of
clouded sky appeared on the whole greater about full moon than about new moon ;—thus, the daily mean for
the 15 days about full moon = 7:05, whereas the daily mean for the 15 days about new moon = 7:14; and
the daily mean for the 7 days about full moon = 6:94, and about new moon = 7:24. The difference of these
| numbers is still very small, and it was remarked (1844, p. 443), on account of the irregularities introduced
by the sun’s cloud-forming power, that it might be desirable to limit the investigation to the hours of the night ;
this has been done for the years 1844 and 1845 in the present volume, Table XXXIX., page 66, where the
| extent of clouded sky is given for each day of the moon’s age and position in declination in each year, as de-
duced from the 6-hourly observations between 9" p.m. and 2" a.m. It will be seen from No. 229 that the
, Variation of the extent of clouded sky in the mean of the year is small for these hours, which include the epoch
cvi GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
of the minimum in the diurnal variation ; they are also the night-hours during which the effect of the full moon
must be greatest : upon the whole, this mode of determining the fact, from a short series of observations, seems
open to the fewest objections. The following Table contains the means for groups of 3 or 4 days.
TABLE 99.—Variations of the Extent of Clouded Sky for the Six Observation Hours 9" p.m. to 2" A.M., _
with reference to the Moon’s Age and Declination for the Years 1844-5.
After
Moon
farthest
North.
a. a.
27— 1
2— 5
6— 8
9—12
13—15
16—19
20—22
23—26
227. The values for each year indicate that the extent of sky clouded was greatest about full moon, and least —
about new moon ; this is shewn with greatest distinctness in the means for 1845. We obtain the same result
if we take from Table XXXIX., p. 66, the means for the 15 days with full moon in the middle, and for 15 days
with new moon in the middle; these are, for 1844, 6:72 and 6°37; for 1845, 7:10 and 6-23 respectively.
the mean 15 days about full moon = 6:91
For the years 1844 and 1845, ee mean 15 days about new moon = 6°30.
It may be a question still, how far error of estimating the extent of clouded sky in the presence and in the
absence of the moon may enter into the production of this result. It is conceived that the effect of error in
estimation must be nearly constant: in dark nights the extent of clouded sky was estimated by the space shew- —
ing clear stars; and it is not improbable that the extent of cloud might be rather over than under estimated
during the absence of moon-light; an error which could only have diminished the distinctness of the result —
obtained. Before we refer the result to the heating effect of the moon, there are other co-ordinate facts to be _
considered with reference to the motion of the atmosphere. (See No. 200.) We may inquire, however, how
far it agrees with the heating effect of the sun, thus ;—the extent of clouded sky appears greatest in summer,
and least in winter, it appears greatest near noon, and least near midnight; apparently, therefore, the heating —
effect is to increase the amount of cloud, and, by analogy, we should have the greatest amount of cloud about! j
Full moon.*
* Since the previous investigation was performed, I have met with a passage in Sir JOHN HERSCHEL’s very excellent “ Outlines
“ of Astronomy,” page 261, in which he supposes that the lunar heat is extinguished in the upper regions of the atmosphere ; and adds, 4
“« Some probability is given to this by the tendency to disappearance of clouds under the full moon, a meteorological fact (for as such
“« we think it fully entitled to rank) for which it is necessary to seek a cause, and for which no other rational explanation seems to
“ offer.” He adds as a note to the parenthesis,—* From my own observation, made quite independently of any knowledge of such
“ tendency having been observed by others. Humboldt, however, in his personal narrative, speaks of it as well known to the pilots —
“and seamen of Spanish America (H).”
Sir JOHN’s observations were probably purely qualitative not quantitative. I have much difficulty in making any objection to
the conclusions of so accurate an observer, at the same time if his observations were not of comparative measurement, I must point
to the previous conclusions from two years’ estimations, and add my own qualitative observation for a considerable period, that the —
clouds are both formed and dissipated under the influence of full moon, and that they are chiefly cirro-cumuli, or of that kind which ~
I have termed cirro-cumulo-stratus (See No. 217), noticed frequently during the existence of the aurora borealis as the growing oe
dissipating cloud. Whether the resultant is an excess or defect of cloud during full moon, as compared with other periods, I have
no impression, and think it extremely difficult to have any. Sir JouN refers, in an addendum, page xv. of his “ Outlines,” to what y
he conceives a fact confirmatory of his conclusion, thus :—“‘ M. ARaAGo has shown, from a comparison of rain registered, as having
“ fallen during a long period, that a slight preponderance in respect of quantity falls near new moon over that which falls near the
“ full. This would be a natural and necessary consequence of the preponderance of cloudless sky about the full, and forms, therefore,
“ part and parcel of the same meteorological fact.” It will be seen, No. 235, that this result has also been obtained from the ~
Makerstoun Observations, but it may still be a question whether it is confirmatory of Sir JoHN’s conclusion. When we compare the
annual extent of sky clouded with the annual fall of rain, we do not find any direct connection: I do not know whether the diurna
<e
EXTENT OF SKY CLOUDED. CVil
228. Variation of the Extent of Clouded Sky with reference to the Moon’s Position in Declination —The
discussion has been performed for this argument also, and the resulting means are given Table XXXIX.,
p- 66 ; and for groups of days, in Table 99. The two years do not agree well. If the cloud depends upon the
heating influence of the moon we should expect the greatest value for the most northerly position of the moon ;
the result, however, would only indicate the excess due to the higher positions of full moon over the lower
positions, and as the latter occur in summer, the epoch of maximum cloud, the result becomes complicated with
other causes of variation. From the mean of both years the numbers indicate an equal extent of sky clouded
for the 14 days.about the moon’s farthest northerly, and for the 14 days about its farthest southerly positions.
When four periods, of seven days each, are considered, the extent of sky clouded is on the whole 0-20 less for
the mean of the groups for which the moon is near the equator than for either the northerly or southerly
groups.
TABLE 100.—Diurnal Variation of the Estimated Extent of Clouded Sky, for each Astronomical
Season and for the Year, deduced from the Observations of the Years 1843-6.
Nov. Feb. May. Aug. 5 Nov. Feb. May. Aug.
Dec. March. | June. Sept. ; Dec. March. | June. Sept. Year.
Jan. April. July. Oct. ime. Jan. April. July. Oct.
—0-41 | —0-43 | —0-76 | —0-53 . +0-59 | +0-53 | +0-49 | +0-57 || +0-57
—0-33 | —0-62 | —0-63 | —0-53 . +0-52 | +0-60 | +0-38 | +0-69 || +0-55
—0-46 | —0-41 | —0-41 | —0-53 : +0-58 | +0-56 | +0-20 | +0-41 || +0-45
—0-39 | —0-30 | —0-18 | —0-17 y -+ 0-64 | +0-63 | +0-26 | +0-28 |) +0-44
—0-41 | —0-49 | —0-21 | +0-08 . +0-55 | +0-31 | +0-03 | +0-28 || +0-30
—0-14 | —0-23 | —0-18 | +0-28 . —0-09 | +0-29 | —0-06 | +0-18 || +0-08
—0-23 | +0-02 | +0-22 | +0-32 . —0-38 | —0-04 | —0-15 | +0-01 || —0-14
+0-43 | +0-26 | +0-41 | +0-41 . —0-57 | —0-33 | —0-15 | —0-31 || —0-34
+0-54 | +0-29 | +0-52 | +0-35 : —0-40 | —0-57 | —0-34 | —0-90 || —0-56
+0-60 | +0-52 | +0-57 | +0-28 ' — 0-43 | —0-56 | —0-33 | —0-78 || —0-53
+0-60 | +0-52 | +053 | +0-52 . —0-86 | —0-75 | —0-36 | —0-78 || —0-69
+0-65 | +0-52 | +0-54 | +0-60 . —0-63 | —0-29 | —0-48 | —0-63 || —0-52
229. Diurnal Variation of the Extent of Clouded Sky,—The variations in Table 100 have been obtained
from the detailed tables for each year in the manner already described for the other meteorological variations.
The following are the epochs of the maxima and minima, and mean extent of clouded sky for each quarter and
for the year :—
Maximum. Mean. Minimum. Mean.
Winter, Nov., Dec., Jan., 95 a.m.—3" p.m. 65 35™ a.m. 10h p.m. 55 25™ p.m.
Spring, Feb., March, April, 9° a.m—3"? p.m. 62 10™ a.m. 105 p.m. 64 10™ p.m.
Summer, May, June, July, Qh a.m. 55 40™ a.m. 12pm. 45 35™ pm.
Autumn, Aug., Sept., Oct., 1" p.m. 35 55™ a.m. 82pm. 65 15™ p.m.
Year, 11515m™am. 55 35m a.m. 105 15m p.m. 55 35™ p.m.
Taw of the amount of rain agrees with that of the extent of clouded sky. There is no doubt, however, that the way in which cloud
is generated by the solar heat must be different from that in which it is generated by the lunar heat, the former is due chiefly to
heating at the base of the atmosphere, the latter to heating in the upper region; in any case, however, it does not seem evident, from
the above considerations, that the lunar heat should generate more cloud than it dissipates.
I may remark, in addition to the above, that the relation of the amount of rain to the amount of cloud must be chiefly a relation
to certain kinds of cloud; those formed and dissipated in moonshine are not rain-clouds at all. May it not be for this reason, the
‘conversion of a certain portion of aqueous vapour into clouds which are not rain-clouds that the least rain falls at full moon, while at
Tew moon the same aqueous vapour is probably deposited below as rain-cloud? The cirri, the highest of all clouds, are, I am per-
suaded, clouds of crystallization ; are they the least frequent in moonlight? does the moon heat not tend to dissipate them, and to
convert them into watery cirro-cumulo-stratus ?
____ Iam strongly of opinion that the effect of the lunar influences in the upper regions of our atmosphere is of much greater im-
portance than might seem at all probable: previous investigations have shown that the laws of magnetic disturbance vary more with
| the positions and age of the moon than with any other argument, and this is especially obvious when we regard the diurnal oscilla-
tions. It has also been shewn from the Makerstoun Observations for 8 years, that the frequency of the aurora borealis is greatest
near full moon. Scattered throughout the Makerstoun Observations, there will be found frequent reference to remarkable opera-
| tions occurring in the upper regions of the air near full moon, chiefly among the cirrus, cirro-cumulus, and cirro-cumulo-stratus ;
this frequency, it is believed, is not wholly due to the better opportunity of observing these processes by moonlight, although that
, may be partially the case.
T have used throughout the term “ extent of clouded sky,” because although there is a considerable probability that during a
large series of observations the extent of sky clouded will be a measure of the amount of cloud, yet this is not absolutely certain.
MAG. AND MET. obs. 1845 anv 1846. 2d
eviil GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS.
~The maximum extent of clouded sky occurs earliest in summer, at 9* 4.m., and latest in autumn, about 1" p.m.;
in the other two quarters, however, the value from 9* a.m. till 3h px. is nearly constant: the minimum occurs
earliest in autumn, about 8" p.m., and latest in summer, near midnight. In the mean for the year the maxi-
mum occurs near 11? a.m. and the minimum near 10" p.m. The morning mean value occurs earliest in autumn
and latest in winter: the afternoon mean value occurs latest in autumn and earliest in summer.
230. The ranges of the Diurnal Variations of the Extent of Clouded Sky are as follow :—
Winter=1:51, Spring = 1-38, Summer=1-05, Autumn=1-59. Year=1-27.
The diurnal range is therefore least in summer and greatest in autumn and winter.
QUANTITY OF RAIN.
TaBLE 101.—Quantity of Rain fallen at Makerstoun, according to the Observatory Rain-Gauge,
for each Month in the Years 1832-1849.
Year. Jan. Feb. | March.| April. | May. | June. | July. | Aug. | Sept. | Oct. | Nov. Dec. Sum.
in. é ; « " > : ° ‘ P in. in.
1832 || 1-582 | 1-33 |0-73 |0-93 |2-09 |4-70 |0-57 |3-96 |1-27 |3-71 |3-21 1-89 25-97
1833 ||0-42 |2-03 |2-85 |1-27 |0-87 | 3-67 1-96 |1-39 |2-30 | 2-03 1-30 |4-40 24-49
1834 | 3-37 |1-08 |0-75 1-38 |0-71 1:93 |3-80 | 3-91 3-20 | 2-21 1-84 |1-42 25-60
1835 | 0:04 | 2-93 1-29 {0-76 |1-79 |0-51 |0-92 |2-12 |2-96 |3-20 |3-90 | 1-50 21-92
1836 || 1-99 | 2-61 2-29 162 |0-49 |2-30 |424 |3-08 |2-08 |3-33 |3-25 |4-98 32-26
1837 3°08 |.1-47 (1-99 {3:18 |1:09 |2-21 15-67 |3:13 |2:92 |1-35 |1-55 203 29-02
1838 | 2-12 |1-22 |1-90 1-68 194 |4-39 |2-54 |2-67 |3-13 |2-43 |2-14 [0-71 26-87
1839 | 1-68 |0-98 |1-98 |0-31 |0-43 |2-86 |2-14 |2-13 |4-25 |3-34 |2.82 | 2.22 25-14
1840 || 3-05 150 |0-82 |0-09 |3-75 |3-41 |3-10 |2-25 |3-16 |1-97 |2-72 |0-91 26-73
1841 | 2-46 |1-17 |1-39 |1-99 |1-60 |1-87 |2-65 |4-07 |3-68 |5-95 |2-63 | 2-14 31-60
1842 1-73 [1-35 |2:30 |0-09 |2-27 |1-60 | 1-800 | 2-201 | 3-080 | 1-319 | 1-846 | 2-102 || 21-688
1843 | 1-978 | 1-926 | 0-934 | 2-231 | 3-237 | 1-311 | 2-676 | 2-752 | 1-080 | 3-645 | 2-038 | 0-949 || 24.757
1844 || 1-904 | 2-081 | 1-632 |0-681 | 0-546 | 3-083 | 2-553 | 1-511 | 3-104 | 1-541 | 2-780 | 0-363 || 21-779 ‘
1845 | 1-325 | 0-712 | 1-283 |1-261 | 2-217 | 2-935 | 1-460 | 3-158 | 1-838 | 4-247 | 1-699 | 1-853 || 23.988 ~
ry
.
1846 | 1-901 | 1-827 | 2-293 | 2-272 |2-975 | 2-761 | 7-124 | 4-738 | 4-586 | 3-506 | 2-054 | 1-817 || 37-854
1847 || 0-624 | 0-484 | 0-330 | 1-201 | 4-335 | 1-970 | 2-099 | 1-035 | 1-375 | 2-778 | 1-839 | 4-006 || 22-076
1848 || 1-166 | 3-780 | 3-350 | 1-028 | 0-350 | 3-826 | 1-294 | 3-223 | 1-182 | 4-152 | 2-252 | 1-627 || 27-230
1849 || 2-775 | 1-305 | 0-929 | 2-480 | 2-831 | 2-379 | 2-383 | 2-547 | 1-973 | 2-417 | 1-309 | 2-000 || 25-328)
hl
Mey 1-841 | 1-655 | 1-613 | 1-359 | 1-862 | 2-651 |2-721 |2-771 | 2-582 | 2-951 | 2.988 | 2-056 || 26-350]
Daily || .0594 |-0585 | -0520 | -0453 | 0-601 | -0884 | -0878 | -0894 | -0861 | -0952 | -0762 | -0663 || 0-072
Mean. i
231. The quantities in Table 101, from July 1842 till December 1849, were obtained from the Observa- :
tory gauge, which has its fonnel-mouth 8 inches above the soil; the quantities from January 1832 till Jo f
1842 are the amounts of rain found in the garden gauge (64 feet ‘above the soil), multiplied by factors, constant —
for each month, which express the ratios of the amounts of rain found in the Observatory gauge to those found —
in the garden gauge during 6 years; these ratios are as follow :—
Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
1:056 1:030 1-029 1:118 1-071 1-076 1-070 1:058 1:078 1:081 1-061 1-172
The amounts of rain, therefore, in Table 101 were either obtained directly from the Observatory gauge, or they
are such as would have been obtained in that gauge.
232. The mean yearly amount of rain at Makerstoun by the Observatory gauge from 18 years’ obseraly
vations =26-°350 inches.
233. The least amount of rain for any of the 18 years was obtained in 1842, when it was 21-688 inches; —
the amounts for 1835 and 1844 were little more. The greatest amount of rain occurred in 1846, being 37-804
inches. The least monthly fall of rain occurred January 1835, being only 0:04 inch. The greatest monthly
fall of rain occurred July 1846, being =7-124 inches. 3
QUANTITY OF RAIN. cx
234. Annual Variation of the Fall of Ram.—From the means for 18 years at the foot of Table 101, the
greatest amount of rain fell in October, and the least fell in April, the daily average for the latter month being
rather less than half that for the former. The amounts of rain for the months of June, July, August, Septem-
ber, and October, differ little, the average daily fall for these 5 months being 00894 inch. The daily means for
the quarterly groups with the greatest range of values are as follow :—
in. in.
Winter, Nov., Dec., Jan., =0:0673 Summer, June, July, Aug., = 0:0788
Spring, March, April, May, =0-0519 Autumn, Sept., Oct., Nov., = 0:0902
in.
Year, = 007/22
235. Amount of Rain with reference to the Moon’s Age.—This discussion was given in the volume for
1844, p. 447. The result, as obtained from 6 years’ observations of the Observatory gauge, may be stated
shortly thus :—
The average daily fall of rain during the second and third quarters = 0-0654 inch.
Sc pian nto oe ae MRS ne lores ie Ariens shave fourth and first ......... =0°0750 inch.
So that a greater amount of rain fell about new than about full moon. (See Foot-note to No. 227.)
a enn
ape
TABLES OF RESULTS
FROM THE
MAGNETICAL OBSERVATIONS
MADE AT THE OBSERVATORY OF
GENERAL SIR T. M. BRISBANE, Barr.,
MAKERSTOUN.
1845 anp 1846.
) ac. AND MET. OBS. 1845 anp 1846. _ >
RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE I.—Mean Westerly Declination for each Civil Week-Day and Week in 1845.
Den Jan Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec
25° 25° 25° 25° 25° 25° 25° 25° 25° 25° 25° 25°
1 12-78 15-12 13-48 11-48 11-19 | [11-52]| 10-70 11-16 09-81 11-53 08-93 08-21
2 13-78 | [14-88]| [13-39]| 12-16 10-65 11-32 10-55 11-51 11-63 11-41 | [10-16]| 09-10
3 14-20 14-55 13-34 11-77 10-17 11-26 11-76 | [11-21]}] 10-25 11-43 11-10 10-29
4 13-47 14-38 13-52 12-17 | [10-88]| 12-46 11-34 12-33 10-85 11-31 09-77 | 06-86
5 [14-07]] 16-13 13-28 11-52 10-90 11-43 10-99 10-44 09-89 | [11-01]} 11-64 10-21
6 14-27 14.73 13-52 | [11-79]| 10-81 10-86 | [11-33]] 11-36 10-41 11-41 10-77 08-51
7 14-00 14-17 13-83 12-17 11-57 11-31 10-81 10-88 | [10-22]| 10-44 12-06 | [09-42}
8 14-73 13-77 14-10 11-76 11-59 | [11-36]| 11-96 12-57 11-25 10-07 11-00 | 08-75
9 11-87 | [13-98]] [13-61]} 11-38 11-43 11-01 11-10 11-82 | 09-26 08-40 |[10-64]} 08-22
10 11-04 13-35 13-41 11-84 11-04 11-01 10-85 |[{10-83]| 10-04 10-79 10-08 | 08-99
11 14-60 13-79 13-12 11-46 |[11-53]| 12-56 11-04 | 09-99 09-89 11-04 | 09-63 08-16
i [13-61]] 14-05 13-66 11-53 11-31 11-39 12-02 | 09-54 10-87 [10-27]| 10-28 08-90
13 15-53 13-39 14-84 |[10-68]| 11-71 10-40: | [11-17]| 10-19 09-79 10-50 09-91 07-57
14 14-77 14-04 13-18 | 06-59 12-09 10-76 10-97 | 09-21 |[10-00]} 10-22 10-19 | [08-02]
15 13-84 13-57 13-83 11-38 11-48 |[10-83]| 11-16 11-43 09-70 10-70 10-07 06-96
16 14-88 | [13-62]|[13-61]] 11-30 12-19 11-23 11-00 10-51 10-17 10-88 | [09-83]| 08-01
kz 14-65 13-52 13-48 11-00 11-45 11-03 11-07 | [10-72]} 09-59 11-89 11-53 08-55
18 15°26 13-59 13-18 11-05 |[11-81]| 10-19 11-13 11-39 10-15 10-29 | 08-31 08-43
19 [14-58]} 13-59 13-13 09-66 12-78 11-21 11-28 11-13 10-77 [10-95] 08-99 | 08-32
20 13-31 13-86 13-02 |[11-02]| 12-22 10-93 | [11-13]} 10-63 09-89 11-37 09-09 | 07-53
21 14-58 13-55 13-25 11-20 10-72 11-64 11-45 10-16 | [10-55]} 10-73 08-10 | [08-25]
22 14-82 14-42 13-23 11-39 10-68 | [1 1-20]| 1 1-32 10-67 10-75 10-56 | 08-62 | 08-18
23 14-38 | [13-42]| [12-67]| 11-84 11-55 11-42 10-55 10-66 10-81 11-08 | [08-44]| 08-37
24 14-21 11-37 13-53 13-00 11-97 10-71 10-33 [10-38]] 10-94 11-73 08-53 08-68
25 14-38 13-33 11-04 12-44 |[11-20]| 11-28 12-47 10-39 10-66 11-39 08-30 | 08-05
26 [14-14]} 13-98 11-96 12-51 11-01 10-97 10-93 10-03 11-82 |[10-98]| 07-98 | 07-97
27 13-21 12-61 12-33 | [11-69]| 11-27 11-11 | [11-03]} 10-39 09-71 11-13 08-03 | 08-47
28 13-52 14-12 11-69 09-57 | 10-71 11-42 11-01 09-73 [10-74] 10-47 09-07 | [08-08]
29 15-16 12-33 11-28 11-08 |[11-04]| 10-97 | 09-07 10-45 10-08 07-20 | 06-60
30 14-30 | {12-07]| 11-34 09-85 11-49 10-45 09-68 10-25 10-36 | [08-65]| 07-79
ol 14-83 | 12-46 13-14 10-44 | [10-09] 09-18 09-62
TABLE II.—Mean Variations of Westerly Declination, after Eliminating the Secular Change,
with reference to the Moon’s Age, Declination, and Distance from the Earth, for 1845. ;
|
Variations Variations | After | Variations Variations |} Before | Variations
of West
Declina-
tion.
0-34
0-47
0-28
0-55
Moon’s
Age.
of West
Declina-
tion.
Moon
'| farthest
North.
D
of West
Declina-
tion.
,
0-45
of West
0-56
and
after
Perigee.
=]
©
“<{
of West
Declina-
tion.
,
0-17
ay.
0
1
2
3
4
5
6
a
8
9
OONAMA WHE OF
0-45
0-48
SIO OB wD De bw ROO AT:
0-43
0-09
&
NOUPwWNWeE PeENWHhOAODN
Civil
Day. Jan.
1 9-71
2 10-65
3 3-81
4 3-74
5 IC 5-57]
6 2-62
u 7:73
8 4.89
9 37-83
10 31-14
il 9-86
12 [18-78]
13 9-38
14 9-82
15 14-65
16 5-80
17 6:76
18 6-92
19 || [13-70]
20 40-16
21 16-35
22 6-20
23 19-98
24 17-56
25 17-84
26 [19-81]
27 18-34
28 19-68
29 25-48
30 15-00
31 5-58
MAGNETIC DECLINATION, 1845.
Hourly Observations, with the Mean for each Week in 1845.
Feb March.
6-68 14-08
[10-37] | [14-69]
7-73 9-53
11-70 7-24
15-54 6-58
14.84 7-40
13-11 11-36
5:69 9-06
[ 9-96]/[ 9-84]
13-33 10-38
6-76 13-34
6:05 7-48
8-07 | 12-24
5:00 19-71
3-26 15-38
[ 5-90]] [16-20]
7-86 15-59
5-54 16-25
5:67 18-05
15-26 19-12
22-74 11-32
14-81 14-49
[20-66] | [18-64]
33-12 | 20-68
17-84 | 26.63
20-20 | 19-59
29.63 | 13-88
21-06 | 22-25
17-51
[14-50]
10-02
April. May. June. July. Aug Sept. Oct.
10-34 | 21-21 |[15-50]] 14-43 | 29-87 | 15-44 | 13-52
12-99 9-53 | 10-76 8:70 | 19-87 | 20-00 8-50
16-86 | 12-17 | 10-76 | 10-87 | [17-36]] 19-74 | 15-78
14-23 | [13-36]) 17-54 | 14-59 | 16-88 | 15-20 8-39
13-94 9-93 | 13-22 9-87 | 10-97 | 16-34 | [10-73]
[14:34]} 13-19 | 13-39 | [12-59]| 13-03 | 13-65 | 11-62
13-89 | 14-14 | 16-46 | 15-06 | 11-42 |[14-50]) 10-59
13-18 | 12-36 |[14-88]| 14-76 | 21-60 | 20-69 9-49
13-97 | 14-56 | 19-31 | 10-39 | 18-79 | 11-06 | 30-88
12-34 | 11-17 | 15-76 | 14-69 | [14-65]] 10-05 | 26-76
14-95 | [13-22]| 11-16 | 13-86 | 11-63 | 16-42 9-21
15:35 | 14-41 | 14-03 9-38 | 11-44 | 13-36 | [14-94]
[22-48]) 12-71 | 12-28 | [12-70]| 13-03 | 14-90 6-31
67-37 | 14-14 | 15-86 | 12-52 9-3 [16-02]} 6-58
15-11 17-26 | [12-56]) 13-60 | 19-75 7:58 9-89
9:77 | 18-44 | 12-83 | 12-15 | 15-49 | 13-89 9-22
10-10 | 11-20 9-24 | 15-14 | [14-86]]| 30-00 | 20-70
18-30 | [15-81]) 11-14 | 13-99 | 18-52 | 27-22 | 13-16
17-56 | 19-31 | 14-16 | 16-15 | 13-36 | 18-84 | [19-52]
[14:58]| 15-76 | 15-21 | [14-14]| 12-65 | 13-29 | 22.61
13-44 | 12-91 | 18-42 | 11-03 | 14-78 | [15-47]] 36-57
12-63 | 18-07 | [14-20]} 13-05 | 15-71 | 10-71 | 14-85
15-47 | 12-44 |-13-39 | 15-48 | 18.49 9-08 5:52
15-11 | 14-38 | 13-88 | 12-02 | [15-63]| 13-71 | 11-69
18-34 | [11-91]| 10-17 | 26-07 | 16-15 | 29-96 | 13-26
14-90 8-19 | 11-92 | 11-00 | 16-77 | 11-74 |[ 9-69]
[16-51]| 9-01 | 13-86 | [13-38]| 11-91 | 34-57 8-20
22-18 9-38 | 18-28 9-06 | 12-41 | [19-25]| 11-27
14-39 | 10-87 |[13-08]} 10-90 | 37-11 | 11-12 8-23
14-16 | 14-40 | 11-29 | 11-23 | 22-00 | 14-60 7-70
28-70 13-55 | [21-12] 14-19
TABLE III.—Diurnal Range of Magnetic Declination for each Civil Day, as deduced from the
Nov.
18-17
[14-92]
12-56
12-91
23-98
4-87
16-27
21-02
8-70
6-82
6-33
9-74
[ 3-13]
10-47
8-44
6-98
9-91
10-19
10-56
[13-30]
16. 99
12-36
TABLE IV.—Means of the Diurnal Ranges of Magnetic Declination, with reference to the
Moon’s
Age.
Mean
Range.
Moon’s
Age.
ay.
0
1
2
3
4
9)
6
7
8
9
12-07
14-54
14-51
12-90
14.54
12-78
13-65
12-94
16-92
12-05
11-30
12-11
13-98
11-85
13-31
Mean
Range.
After
Moon
farthest
North.
D
OMNIA MNKRWNH OF
Moon’s Age and Declination, for 1845.
RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE V.—Hourly Means of Westerly Declination for each Month in 1845.
Mean Time.
Jan. Feb. | March.} April. | May. | June. | July. | Aug. | Sept. | Oct. Nov. | Dec. Year.
Gott. | Mak.
25° 25° 25° 25° 25° 25° 25° 25° 25° 25° 25° 25° 25°
/ 7 , ¢ ‘ , , , ¢
13 12 12-11] 11-33] 11-24] 09-86} 09-62} 10-13} 09-54} 08-48 | 08-78 | 07-74} 08-44 | 06-64) 09-49
14 13 12-17 | 12-50} 11-20} 09.29] 09-21| 09-96| 08-69} 07-89] 07-81 | 08-59} 08-73) 06-80 || 09-40
15 14 || 11-97) 12-84] 12-19} 07-31| 09-68) 09-53] 08-31] 09-57 | 08-24) 08-39) 09-48 | 07-73 || 09-60
16 15 11-71 | 13-31] 11-15] 08-63) 09-48} 08-82} 09-55| 08-98 | 07-18} 09-53 09-11 | 07-89 || 09-61
17 16 12-93 | 12-99} 10-29} 10-31] 08-49} 07-23) 08-48} 07-28} 08-10! 09-59 | 08-69} 08-64|| 09-42
18 U7 13-47 | 12-53] 11-41] 08-83| 07-33) 05-96} 07-37 | 06-57 | 07-83 | 10-02| 08-57 | 07-79 || 08-97
19 18 14-47 | 13-17} 11-27) 08-10) 06-25} 05-38] 06-90 | 06-22| 08-91) 10-17) 09-14} 08-21 || 09-01
20 19 14-84| 13-23] 11-26] 06-90| 05-97 | 05-83 | 06-57| 07-05| 08-73) 09-57 | 09-02} 08-22 ) 08-93
21 20 15-17| 13-75 | 11-50] 06-61 | 07-87 | 06-84] 07-76| 08-32) 10-40 | 09-05) 09-33) 08-45 || 09-59
22 21 15:76 | 14-59] 12-36] 08-29| 09-86| 09-16| 09-52} 10-08) 11-38} 09-91} 10-37) 08-30) 10-80
23 22 16-57 | 15-56} 13-76] 11-46| 13-11] 12-37] 11-66] 12-46) 13-44] 12-43] 11-77| 09-42)| 12-83
0 23 17-03 | 17-58] 16-41] 14-99] 16-09} 16-08} 14-25) 15-73} 15-98) 14-93 | 12-71} 10-91) 15-22
1 0 17-37 | 18-48] 19-08] 18-21] 17-84| 17-74] 16-57| 18-04} 17-71} 16-30} 13-39) 12-06) 16-90
2 1 17-63 | 18-64] 19-96] 19-69} 18-39, 17:90] 17-43] 18-89| 17-20) 16-51] 13-38} 12-36 |) 17-33
3 2 16-57 | 17-54| 19-18| 18-66| 17-60| 17-53| 16-88] 17-77| 15-60| 15-42| 12-68| 11-23) 16-38
4 3 16-02} 15-53 | 17-51] 16-56) 15-62| 15-86] 15-85) 15-40 13-12] 13-63] 11-36) 10-55 | 14-75
5 4 15-53| 15-09] 15-14| 14-97} 13-94| 14-24] 14-44] 13-24] 10-92] 11-70] 10-25! 09-03 | 13-21
6 5) 13-97 | 13-74] 12-69} 12-82) 12-00| 12-49] 13-06} 11-06 | 09-97 | 10-79 | 09-22) 07-78) 11-63
7 6 13-96] 12-01} 11-67] 11-11} 11-11} 11-55} 11-69) 08-59) 08-49} 10-84) 09-23 | 07-09} 10-61]
8 7 12-53] 11-99] 11-71] 10-05) 10-83} 11-36} 11-33 | 09-23} 08-47 | 10-44| 07-49) 07-13) 10-22]
9 8 12-39| 11-56] 11-59} 09-10] 10-75| 11-24} 10-62) 09-68} 07-64} 09-87 | 07-34 | 06-04) 09-82
10 ) 11-57} 11-73} 10-04] 09-69; 10-30} 10-91} 10-16] 08-56 | 07-38 | 08-18} 06-85 | 05-94) 09-28]
11 10 11-68 | 11-36] 11-11] 10-22) 10-78} 10-76} 10-15] 07-97 | 08-08 | 07-44} 05-89 | 06-13 | 09-30
12 11 10-68 | 12-00} 11-70} 10-48} 10-38} 10-31} 09-60) 08-46 | 07-50 | 07-09 | 07-19 | 05-93 | 09-28
M 1 Jan. Feb. | March.| April. | May. | June. | July. | Aug. | Sept. Oct. Nov. | Dec. Year.
12 1-43 | 0-00 | 1-20 | 3-25 | 3-65 | 4-75 | 2-97 | 2-26 | 1-60 | 0-65 | 2-55 | 0-71 | 0-56
13 1-49 | 1-17 | 1-16 | 2-68 | 3-24 | 4-58 | 2-12 | 1-67 | 0-63 | 1-50 | 2-84 | 0-87 || 0.47
14 1-29 | 1-51 | 2-15 | 0-70 | 3-71 | 4:15 | 1-74 | 3-35 | 1-06 | 1-30] 3-59 | 1-80 ! 0-67
15 1-03 | 1:98 1-11 | 2-02 | 3-51 | 3-44 | 2-98 | 2-76 | 0-00 | 2-44 | 3.22 | 1-96 | 0-68
16 2-25 | 1-66 | 0-25 | 3-70 | 2-52] 1-85 | 1-91] 1-06 | 0-92 | 2-50 | 2-80 | 2-71 || 0-49
17 2:79 | 1-20 | 1-37 | 2-22 | 1-36 | 0-58-| 0-80 | 0-35 | 0-65 | 2-93 | 2-68 | 1-86 || 0-04
18 3-79 | 1-84] 1-23 | 1-49 | 0-28 | 0-00 | 0-33 | 0-00 | 1-73 | 3-08 | 3-25 | 2.28 || 0-08
19 4:16 | 1-90 | 1-22 | 0-29 | 0-00 | 0-45 | 0-00 | 0-83 | 1-55 | 2-48 | 3-13 | 2-29 || 0-00
20 4-49 | 2-42 | 1-46 | 0-00 | 1-90 | 1-46] 1-19 | 2-10 | 3-22 | 1-96 | 3-44 | 2-52 || 0-66
21 5:08 | 3-26 | 2-32] 1-68 | 3-89 | 3-78 | 2-95 | 3-86 | 4-20 | 2-82 | 4-48 | 2.37 1-87
22 5-89 | 4:23 | 3-72 | 4-85 | 7-14 | 6-99 | 5-09 | 6-24 | 6-26 | 5-34] 5-88 | 3-49 || 3-90
23 6-35 | 6-25 | 6-37 | 8-38 | 10-12 | 10-70 | 7-68 | 9-51 | 8-80 | 7-84 | 6-82] 4.98 || 6-29
0 6-69 | 7-15 | 9-04 | 11-60 | 11-87 | 12-36 | 10-00 | 11-82 | 10-53 | 9-21 | 7-50 | 6-13 || 7-97
J 6-95 | 7-31 | 9-92 | 13-08 | 12-42 | 12-52 | 10-86 | 12-67 | 10-02 | 9.42 |} 7-49 | 6.43 || 8.40
2 5-89 | 6-21 | 9-14 | 12-05 | 11-63 | 12-15 | 10-31 |11-55 | 8-42 | 8-33 | 6-79 | 5-30 || 7-45
3 5:34 | 4:20 | 7-47 | 9-95 | 9-65 | 10-48 | 9-28 | 9-18 | 5-94] 6-54 | 5-47 | 4-62 || 5-82
4 4:85 | 3-76 | 5-10 | 8-36 | 7-97 | 8-88 | 7-87 | 7-02 | 3-74 | 4-61'| 4-36 | 3-10 || 4.28
5 3-29 | 2-41 | 2-65 | 6-21 | 6-03 | 7-11 | 6-49 | 4-84 | 2-79 | 3-70 | 3-33 | 1-85 || 2-70
6 3-28 | 0-68 | 1-63 | 4-50 | 5-14 | 6-17 | 5-12 | 2-37 | 1-31 | 3-75 | 3-34 | 1-16 1-68
7 1-85 | 0-66 | 1-67 | 3-44 | 4.86 | 5-98 | 4-76 | 3-06 | 1-29 | 3-35 | 1-60 | 1-20 1-29
8 1-71 | 0-23 | 1-55 | 2-49 | 4-78 | 5-86 | 4:05 | 3-46 | 0-46 | 2-78 | 1-45 | 0-11 | 0-89
9 0-89 | 0-40 | 0-00 | 3-08 | 4-33 | 5-53 | 3-59 | 2-34 | 0-20 | 1-09 | 0-96 | 0-01 0-35
10 1-00 | 0-03 | 1-07 | 3-61 | 4-81 | 5-38 | 3-58 | 1-75 | 0-90 | 0-35 | 0-00 | 0-20 || 0-37
11 0-00 | 0-67 | 1-64] 3-87 | 4-41 | 4.93 | 3:03 | 2.24 | 0-32 | 0-00 | 1-30} 0-00 | 0-35
MAGNETIC DECLINATION, 1845. 5
TABLE VII.—List of Seven Days in each Month of 1845 upon which the Magnetic Declination
was least irregular.
TABLE VIII.—Hourly Means of Magnetic Declination for the Seven Days least disturbed in each
Month of 1845, corrected so that the Mean of each Seven Days equals the Monthly Mean.
BH OOMNAUNKRwWHH
—
MAG. AND MET. OBS. 1845 anp 1846. B
6 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE IX.—Variations of Magnetic Declination with reference to the Moon’s Hour-Angle for each
Lunation, for the Six Summer and Seven Winter Lunations, and for the whole Thirteen Luna-
tions of 1845.
4 LUNATIONS.
Moon’s
Hour-
Angle. : 3 : rh. : : : . | 9th. | 10th,
2-03
0
1
2
3
4
5
6
7
8
9
TABLE X.—Differences of the Hourly Means of Westerly Declination, as deduced from the whole ©
Series, and the Seven-Day Series selected in each Month; or Table V. minus Table VIII.
Bias Jan. Feb. | March.| April. | May. | June. | July.
12 — 1-60 |— 1-30 |—1-17|+0-01 | — 1-53 |—0-48 | — 0-50 | — 1-32 | — 1-16 | — 1-97 | — 0-64 | — 0-98 || — 1-06
13 —1-19}—1-29 |—0-85 |—0-92 | — 1-72 |— 0-93 |— 0-93 | — 1-24 | — 1-62} —0-89 |— 0-29 |— 1-11 | — 1.08
14 — 1-72|}—0-88 |+0-54|—2-77|—1-02 |—0-61 | —0-74|}+ 0-05 | —0-59 |— 1-35 |+ 0-43 | — 0-42 | — 0.76
15 — 1-67 |+0-05 | —0-13 |—0-79 | — 0-80 | —0-14|+0-79 0-00 |— 0-62 | —0-52 | — 0-19 | — 0-33 | — 0-36
16 —0-581+0-20|—1-04|+1-32}—1-01 | —0-36 |+ 0-67 | — 1-05 | + 0-03 | — 0-08 | — 0-43 |+ 0-70 | —0-13
17 + 0-09 | —0-23 |+0-10|+0-87 | — 0-72 | —0-30 |+ 1-15 |—0-16 | + 0-42}+0-51 | —0-49 | — 0-28 || +.0-08
18 +1-25|+0-37|+0-03 |+0-44 | — 0-66 | —0-12}+ 1-01 |+ 0-39 |}+ 1-98 |+0-70 |+ 0-37 | + 0-47 || +0-51
19 +1-59/+0-29| 0-00|)+0-64 |—0-16|+0-44|)+0-43 |+1-45 |}+ 1-65 |+ 0-66 |+0-56 |+ 0-64 || + 0-68
20 +1-49|+0-56|+0-36|+0-35 |+0-63 |+ 0-79 |+ 0-46 |+ 2-59 |+ 2-60 |+ 0-41 |+ 0-87 |+ 0-82 || + 1-00
21 |/+1-40}40-82)+ 0-69 | + 0-78 | + 0-59 | + 1-05 |+0-37 |4 1-75 |+1-94|+0-59 |+ 1-28 | + 0-98 || + 1-02
22 |4+1-25|+0-73|+4+0-91 |4+0-79|+0-88 |+ 0-83 | + 0-16 |+ 0-37 |+ 1-43 |+0-24.|+0-90 |+ 1-06 | +0-79
23 4+ 0-61 |+1-38 |+ 1-07 |+ 0-46 | + 0-98 |+0-71 | —0-25 |+0-58 |}+0-79|+ 0-57 |+ 0-36 |+ 0-99 | +0-68
+ 1-49 }+ 1-53 }+ 1-18 |+0-19|+ 1-38 |+ 0-24 | —0-27 |+ 0-58 | 4+ 0-77 | + 0-56 |4+ 0-95 |+ 1-01 | + 0-80
+1-50|/+1-64)/+ 1-64 |+ 0-07 |+ 1-52 |+ 0-20 | — 0-22 | + 0-66 | + 0-49 |+0-76 |+ 1-10 |+- 1-17 | + 0-88
+1-46]}+ 1-33 }+ 1-37 |} + 0-41 |}+1-89 |4+ 0-16 |+ 0-51 |+ 0-55 |} 4+ 1-06 |4+ 1-35 | + 1-48 }+ 0-64 | + 1-01
+ 1-04|)+ 0-55 |4 1-33 |+0-04/}+ 1-23 |—0-40 |+ 0-63 | + 0-66 |4+ 0-72 |+ 1-03 | + 1-10 |+ 1-12] +0-75
+ 1-07 |+0-96 | + 1-09 |}+ 0-08 |+ 1-10 |—0-02 |+ 0-29 |+ 1-01 | — 0-06 |+ 0-90 |+ 0-28 |+ 0-70 | + 0-62
— 0-08 |— 0-09 | — 0-36 | — 0-34 | + 0-37 |4+ 0-28 | — 0-45 |+ 0-78 | — 0-26 | + 0-09 | — 0-26 | — 0.46 || — 0-07
+0-18|—1-42|—1-59 |— 0-58 }+ 0-12 |—0-01 | —0-68 | — 0-93 | — 1-27 |4+.0-78 | — 0-08 | — 1-19 || — 0-56
— 1-20 |— 1-32)—1-06 |—0-85 | —0-11 |— 0-19 | —0-42 | — 0-67 | — 1-28 |4+ 0-87 | — 1-27 |— 0-92 || 0-70
— 1-07 | — 1-37 | — 0-80 | — 0-64 | — 0-53 | — 0-02 | —0-89 | — 0-63 | — 2-33 |4+ 0-17 | — 1-22 | — 1-39 || — 0-89
— 1-48 |—1-04|}— 1-72 | —0-24|— 1-09 | —0-31 | —0-76 | — 1-85 | — 1-62 | — 1-37 | — 1-09 |— 0-87 | —1-12
— 1-54 ]—0-84| — 1-22 |}4+.0-08 | — 0-47 | — 0-49 | —0-11 | —2-32 | — 1-41 | — 1-84 | — 2-53 — 0-93 | — 1-13
— 2-37 | —0-78 | — 0-44 | 4 0-52 | —0-82 | — 0-36 | —0-34 | — 1-20 | — 1-68 2:35 —1-23 —1-32 | — 1-03
u | u l
KHOontoaukhwnNnro
i
jf
ee ee
.
MAGNETIC DECLINATION, 1845.
TABLE XI.—Mean Difference of a Single Observation of the Magnetic Declination, from the Monthly
Mean at the corresponding Hour, for each Civil Day and Week in 1845.
March.
,
1-32
Mean
Difference.
1-57
1-72
1-61
2:03
1-84
2-02
2.28
1-69
1-40
1-87
1-78
1-84
1-69
1-75
1-65
Moon’s
Age.
D
wCaONAnAWNOE Og
Mean
Difference.
After
Moon
farthest
North.
D
COONAN wWNHE OZ
Mean
Difference.
TABLE XII.—Mean Difference of a Single Observation of the Magnetic Declination from the Monthly
Mean at the corresponding Hour, with reference to the Moon’s Age and Declination, for 1845.
After
Moon Mean
farthest | Difference.
North.
8 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XIII.—Mean Difference of a Single Observation of the Magnetic Declination from the
Monthly Mean at the corresponding Hour, for each Hour in each Month of 1845.
Mak. Jan. Feb. | March.} April. | May. | June. | July. | Aug. | Sept. Oct. Nov. Dec. || Year.
12 3-12 | 2-61 | 1-88 | 2-17 | 2-31 | 0-86 | 1-64 | 2-06 | 2-59 | 2-33 | 1-34 | 1-58 || 2.04
13 3-52 | 2-65 | 3-03 | 2-20 | 2-21 | 1-14] 1-49 | 2-23 | 1-98 | 2-10 | 1-13 | 1-59 || 2-11
14 2-35 | 1-82 | 2-10 | 5-13 | 1-36 | 1-04] 1-59 | 2-29 | 2-41 | 2-04 | 1-66] 1-11 2-07
15 3-18 | 1-21 | 2-44} 2-62 | 1-66; 1-11 | 1-29] 1-92 | 2.42 1-83 | 1-58 | 1-02 | 1-86
16 2:06 | 1-36 | 1-99 | 1-50 | 0-95 | 1-27] 1-95 | 1-41 | 1-68 | 1-03 | 1-36 | 1-45 1-50
i 1-29 | 1-09 | 1-46 | 1-56 | 1-27 | 1-38 | 2-47 | 1-09 | 1-98 | 1-36 | 0-83 | 0-72 || 1.37
18 1-41 | 1-38 | 0-95 | 1-28 | 1-13 | 1-28 | 1-93 | 1-38 | 2-57 | 1-37 | 1-17 | 1-11 1-41
19 1-56 | 0-71 | 0-96 | 1-35 | 1-22 | 1-32 | 1-58 | 2-30 | 2-07 | 1-34 | 1-09 | 0-99 || 1.37
20 1-56 | 1-28 | 1-41 | 0-93 | 1-83 | 1-50 | 1-52 | 3-13 | 2-81 | 1-45 | 1-50] 1-23 1-68
21 1-34 | 1-33 | 1-57 | 0-84 |) 1-44 | 1-47 | 1-86 | 2-37 | 2-02 | 1-80 | 2-15 | 1-31 1-62
22 1-27 | 1-26 | 1-28 | 0-87 | 1-53 | 1-35 | 1-57 | 1-88 | 1-69 | 1-49] 1-93 | 1-37 || 1-46
23 1-40 | 1-60} 1-28 | 0-83 | 1-73 | 1-78 | 1-45 | 1-46 | 1-52 | 1-53 | 1-55 | 1-65 1-48
0 (1-40 | 1-58 | 1-24] 1-34 | 1-77 | 1-40 | 1-30] 1-46 | 1-48 | 1-47 | 1-97] 1-80 || 1.52
1 1-81 | 1-89 | 1-39 | 1-48 | 2-02 | 1-54 | 1-46 | 2-03 | 1-59 | 1-85 | 2.00 | 2-10 || 1-76
2 [1-77 1-47 | 1-46 | 1-52 | 2-22 | 1-47 | 1-30] 1-94 | 1-53 | 1-96 | 2-04] 1-88 || 1-71
3 1-55 | 2-34] 1-37 | 1-60 | 1-75 | 1-70 | 1-38 | 1-94 | 1-87 | 1-81 | 1-82 | 2-02 || 1-76
4 1-20 | 1-67 | 1-24] 1-37 | 1-71 | 1-42] 1-10 | 1-69 | 1-54 | 1-33 | 2-52] 1-58 || 1-53
5 1-64 | 1-90 | 1-70 | 1-16 | 1-10 | 1-23 | 0-91 | 1-17 | 1-10 | 1-23 | 2-67 | 1-73 1-46
6 1-52 | 3-40 | 2-64 1-50 | 0-87 | 0-78 | 0-96 | 2-55 | 2-43 | 0-66 | 1-33 | 3-45 || 1.84
it 2-46 | 3-02 | 1-95 | 1-47 | 0-78 | 0-75 | 0-92 | 1-30 | 2:38 | 0-64 | 2.38 | 1-53 1-63
8 1-96 | 2-52 | 1-64} 2.20 | 0-92 | 0-60 | 1:02 | 0-89 | 2-50 | 0-82 | 1-48 | 2.39 1-58
9 2:79 | 2-46 | 3-25 | 1-60 | 1-22 | 0-70} 1-36 | 2-57 | 2-65 | 2-36 | 1-67 | 1-94 || 2-05
10 2-62 | 1-59 | 2-55 | 1-21 | 0-88 | 0-79 | 0-68 | 1-99 | 2-23 | 2-80 | 2-90 | 1-93 1-85
11 3-68 | 1-39 | 1-55 | 1-39 | 1-26 | 0-92] 1-10} 1-63 | 2-40 | 3-20 | 1-84] 1-7] 1-84
TABLE XIV.—Number of Positive and Negative Differences which occur between the limits of
successive Minutes, for each Month, and for the Year 1845.
10’ 15’ 20°
to to
15’. 20’. 25’.
a
WwhWwWwaAnwaohna
[NWO WWE NOK Whe
wm wi
7 DORN WOND We DK ?:
+
+
+
+
i
A
+
A
i
ie
+
q
AONNNWRWWORWORE HE eRe OWeEUWIh DYKE
—
AOINWOTINWDDOMDOOKRWNIARHWNHNE KD
WTA RWOWUNWATOWeH :
KH OWRD NDE NDWeHeE WHOS!
OD We wwe ps:
~JI 00
eo
ew
OD
hm bo
MAGNETIC DECLINATION, 1845.
TABLE XV.—Number of Positive and Negative Differences which occur between the limits of
successive Minutes, for each Hour in 1845.
10’ 15’
to to
15%. 20’.
Makerstoun |
Mean Time.
—
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MAG. AND MET. OBS. 1845 anp 1846. c
10 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XVI.—Number of Differences in 1000 (without reference to sign) which occur between the
limits of successive Minutes, for each Month, and for the Year 1845.
0’ at ON 37 AS, Be 6’ ite 8’ 9’ 10’ nd 20° 25’ Abowd
Month. to to to to to to to to to to to to to to 30’.
a3 ive a. Ae ie 6’. Te 8’. 9’. 10’. LS’. 20’. 25. 30’.
January 387 | 270 | 193 59 25 14 8 11 1l 6 8 5 see 5
February 406 | 337 | 109 54 30 24 7 9 5 3 9 3 3 oon
March 418 | 287 | 146] 64 24 14 18 16 6 aes 5 2 ee
April 470 | 292 | 125 56 15 13 13 2 2 3 6 2 2 2
May 471 | 299 | 120 63 |, 14 11 6 5 2 2 8 see see
June dar. 2520) big 42 ile 5 2 tee tee see tee oo
July 478 | 336 99 | 39 20 5 3 3 6 see 9 2 .
August 377 | 300 | D7 | 805)| (29) | 945 | (88 8 5 2 6 3 2 eee
September 329 | 288 | 202 | 90 27 8 21 6 14 aie 11 2 2
October | 449 | 295 | 136 57 15 12 9 5 6 5 8 tee 3 see
November 410 | 293 | 140 | 77 25 18 10 7 7 3 10 oe
December 463 | 336 88 | 39 19 12 15 6 6 3 3 9
Year 433 | 304 | 132 | 60 21 13 11 7 6 2 7 2 1 1
TABLE XVII.—Number of Differences in 1000 (without reference to sign) which occur between the
limits of successive Minutes, for each Hour in 1845.
Mak. 0 ili Vit 3 4’ 5’ 6 (it 8’ 9’ 10’ 15’ 20’ 25’ ‘Above
M ean to to to to to to to to to to to to to to 30’
Time. 14 aK Bi 4 5. 6’. Ws s. 9’. 10’. 15’. 20’. 25’. 30’. ‘
h.
12 377 | 348 | 121 38 26 19 22 10 6 3 16 10 ee 3
13 SDL onl tell 54 13 16 16 16 B} 10 19 6 ae 3 see
14 406 | 294 | 118 67 35 13 19 10 26 ee 6 3 see oe 3
15 412 | 288 | 147 | 73 13 19 6 16 6 13 3 3 see
16 492 | 288 99 | 38 29 26 16 6 . 6 see
17 546 | 259 83 | 58 22 10 6 10 3 426 ae 3
18 498 | 291 | 105 51 26 10 6 6 3 3
19 505 | 291 | 115 42 16 13 6 6 sete 6
20 422 | 294 | 141 | 73 19 13 10 13 6 6 3
21 409 | 313 | 131 73 35 16 10 3 3 6
22 441 | 304 | 153 67 13 13 3 3 3
3% 438 | 291 153 73 29 10 3 3 oo
0 390 | 323 | 176 | 83 16 6 oe 6 | «- eee tee
1 361 | 291 | 195 | 93 29 16 6 3 3 tee 3
2 399 | 332 | 121 70 19 29 6 10 a 3 6
3 419 | 291 | 144 | 67 16 26 19 3 10 6
4 466 | 316 | 105 | 42 26 10 16 6 3 3 6
5 524 | 291 83 45 6 6 16 6 6 3 i)/3" see
6 466 | 300 } 118 38 22 6 10 3 6 tee 10 13 3 3
7 447 | 307 | 128 42 35 6 3 10 3 10 6 ae 3
8 460 | 304 |] 134] 38 22 13 10 6 3 505 3 6 see
9 358 | 316 | 173 | 67 16 3 13 26 6 3 10 3 6
10 399 | 294 | 163 67 10 13 22 2 13 10 % 3 see
11 406 | 297 | 147 73 22 16 13 6 3 10 3 3
HoRIZONTAL COMPONENT OF MAGNETIC Force, 1845.
11
TABLE XVIIJ.—Mean Values of the Variations of the Horizontal Component of Magnetic Force,
the whole Horizontal Component being Unity, for each Civil Week-Day and Week of 1845.
Dy. Jan. Feb. March. | April. May. June. July. Aug. Sept. Oct. Nov. Dec
0-00 0:00 0-00. 0:00 0:00 0:00 0-00 0:00 0:00 0:00 0:00 0:00
1 4476 4890 4756 5030 4479 | [5555]| 5503 5999 4997 5167 5061 6035
2 4831 [4903] [5031] | 5306 4827 5629 5638 5296 4423 5426 | [5548]| 6048
3 5184 5141 5158 5114 4882 5471 5607 | [5364]] 4876 5194 5456 6497
4 5307 5096 5352 5025 [4927] 5792 5897 4980 4759 5405 5407 3591
5 [5368]] 5193 5326 5034 5134 5593 5880 5107 5118 | [5492]} 5365 5053
6 5573 4385 5327 | [5144]] 5083 5748 | [5701]} 5120 5005 5610 5828 5412
a 5645 4984 5523 5249 5155 5809 5824 5383 | [5028]| 5618 5404 | [5359]
8 5669 4987 5279 5067 5429 | [5772]| 5677 5103 4739 5701 5782 5743
9 4095 | [4938] | [5248] 5373 5468 5699 5320 5300 5127 5389 | [5841]| 6160
10 3605 5005 5030 5433 5436 6199 5477 | [5424]| 5422 4445 5996 6278
11 4970 5086 5005 5260 [5520] 5586 5438 5352 5372 5193 6023 6334
12 [4686] 5179 5324 5506 5610 5100 5768 5341 5347 | [5330]| 6014 5996
13 4812 5366 5162 | [4625]] 5625 4999 | [5682]| 6063 5268 5695 6187 5106
14 5309 5314 5082 2008 5552 5449 5790 5886 [5340] 5663 6238 | [5707]
15 5327 5317 4957 4714 5460 [5322] 5880 5685 5218 5597 6311 5564
16 5166 | [5367] | [4981]| 4829 5432 5586 5739 5390 5501 5256 | [5841] | 5670
17 5383 5383 4833 4784 5449 5456 5771 [5467]| 5334 5646 5460 5575
18 5230 5365 6113 5124 [5320] 5340 5566 4932 4763 5737 5309 5600
19 [4971]] 5456 4742 5019 4789 5744 5853 5390 4761 | [5316]| 5544 6065
20 3602 5904 4803 | [4831 5548 5853 | [5669]| 5517 4719 5762 5897 6289
21 5198 4718 4847 4332 5244 5663 5373 5375 [5243] | 4585 5912 | [6209]
22 5247 4663 4803 4567 5404 [5774] 5502 5806 5356 4908 5998 6486
23 5019 | [4762] | [4707]| 5158 5969 5719 5947 5516 5632 5412 | [6165]| 6506
24 4637 4312 4719 5407 5029 5760 5869 | [5543]] 6226 5396 5991 6306
25 4883 4479 4186 4960 [5520] 5905 4326 5670 4704 5144 6558 6481
26 [4955] 4498 4886 5054 5470 5401 5109 5947 4556 [5566] 6632 6525
27 5039 4886 4416 | [4866] 5715 5986 | [5221]| 4942 4700 5697 6579 6213
28 5033 4708 5004 4305 5933 5705 5222 5403 | [4869] 6052 5810 | [6163]
29 5121 4917 4452 5902 [5691]| 5201 5842 4904 5695 5498 6244
30 4542 [4971] 5022 5638 5912 5601 4246 5183 6062 | [6068]} 5897
31 4557 5156 4900 5683 | [4964] 5940 5617
TABLE XIX.—Mean Variations of the Horizontal Component of Magnetic Force, after eliminat-
ing the Secular Change, with reference to the Moon’s Age, Declination, and Distance from the
Earth, for 1845.
Variations Variations || After | Variations | After | Variations || Before | Variations | Before | Variations
Moon’s| of Hori- | Moon’s| of Hori- Moon | of Hori- Moon | of Hori- and of Hori- and of Hori-
Age. zontal Age. zontal farthest zontal |farthest zontal after zontal after zontal
Component. Component. || North. | Component.| North. | Component. || Perigee.| Component. | Apogee.| Component.
Day. 0:00 Day. 0:00 Day. 0:00 Day. 0:00 Day. 0:00 Day. 0:00
15 0241 0 0311 0 0441 14 0497 7 0209 7 0377
16 0256 1 0239 1 0381 15 0503 6 0321 6 0186
17 0231 2 0111 2 0443 16 0510 5 0241 5 0416
18 0164 3 0265 3 0209 17 0329 4 0315 4 0393
19 0200 4 0370 4 0312 18 0000 3 0177 | #3 0305
20 0214 5 0135 5 0249 19 0310 2 G289R, 2 0437
21 0118 6 0291 6 0227 20 0339 1 0423 1 0344
22 0230 Zh 0246 if 0150 21 0394 12 0482 A 0391
23 0336 8 0000 8 0213 22 0426 1 04245); 1 0230
24 0217 9 0260 9 0286 23 0370 2 0167 | 2 0095
25 0199 10 0399 10 0258 24 0429 3 0000 | 3 0253
26 0431 11 0367 i 0391 25 0496 4 02277), 4 0370
27 0370 12 0294 12 0332 26 0486 5 0358 | 5 0171
28 0409 13 0346 13 0331 Pf 0464 6 0311 6 0255
29 0372 14 0350 7h 0234 7 0294
12
TABLE XX.—Diurnal Range of the Horizontal Component of Magnetic Force for each Civil Day, as
RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
deduced from the Hourly Observations, with the Mean for each Week in 1845.
April.
Feb. March.
0-0 00 0-0
1 0157 0203 0174
2 0151 [0218] [0222]
3 0081 0183 0220
4 0073 0164 0136
5 [0119] 0252 0172
6 0095 0370 0193
7. 0225 0182 0227
8 0088 0134 0269
9 1687 | [0215] [0232]
10 1375 0221 0315
1i 0169 0143 0214
12 [0661] 0241 0172
13 0230 0325 0244
14 0249 0127 0346
15 0259 0105 0351
16 0126 | [0176] [0340]
17 0203 0214 0323
18 0218 0118 0447
19 [0479] | 0167 0332
20 1715 0375 0668
ui 0106 0360 0389
22 0504 0378 0307
23 0335 | [0439] [0488]
24 0452 0627 0559
25 0378 0406 0528
26 [0473] | 0490 0475
27 0479 0360 0487
28 0361 0269 0274
29 0833 0384
30 0277 [0347 |
0231 0311
TABLE XXI.—Means of the Diurnal Ranges of the Horizontal Component of Magnetic Force,
00
0336
0290
04.26
0417
0431
[0434]
0473
0386
0472
0307
0344
0347
[0872]
3542
Sept. Oct.
0-0 0-0 00 0-0
0602 0420 0476 0281
0252 0386 0588 0328
0358 0354 [0477] 0487 0309
[0411] 0368 0745 0889 0336
0409 0323 0448 0407 [0341]
0400 [0377] 0445 0416 0445
0448 0269 0340 [0506] 0312
0412 0582 0508 0540 0316
0447 0368 0427 0468 0727
0405 0421 [0395] 0316 0693
[0416] 0451 0370 0347 0308
0339 0454. 0398 0353 0399 [0401]
0427 0340 [0403] 0374 0423 0265
0469 0367 0477 0392 | [0375] |} 0207
0543 | [0377]| 0361 0699 0319 0209
0799 0316 0311 0521 0319 0311
0609 0374 0377 [0513]| 0445 0378
[0578] 0414 0364 0445 0545 0328
0599 0356 0377 0503 0326 [0359]
0475 0473 [0418] 0519 0336 0276
0441 0444 0493 0475 | [0396]| 0405
0493 | [0401]| 0434 0402 0308 0455
0386 0438 0462 0337 0364 0213
0573 0431 0479 [0388] 0496 0232
[0404] 0266 0813 0360 0872 0335
0312 0428 0344 0444 0368 | [0203]
0337 0349 | [0448]| 0308 0571 0158
0321 ‘0473 0389 0374 | [0436]| 0133
0314 | [0441]| 0337 0770 0266 0146
0585 0490 0329 0588 0256 0182
0427 0419 [0547] 0256
with reference to the Moon’s Age and Declination, for 1845.
Mean
Range.
pg
Sa =
After
Moon
farthest
North.
Mean
Range.
Moon
farthest
North.
D
OWOWAE AAW OF
[0817]
0143
0119
0230
[0197]
0172
0370
| 0148
tec, AVE, - EE
bE ee
kOe
a ap a PP
4
»
Yara
——
~ nd
a
=e
HortzoNTAL CoMPoNENT OF MaGnetic Force, 1845.
13
TABLE XXII.—Hourly Means of the Scale Readings of the Biflar Magnetometer, corrected
for Temperature, for each Month in 1845.
Gott.
1345
1586
1483
1513
1502
1516
1497
1288
1376
1390
1016
0965
KP COUOUOMONOUARWN- ©
—_
MAG. AND MET. OBS
0262
0554
0809
1008
0840
0822
0860
0925
0876
0851
0486
0671
0938
1253
1963
2135
2247
2143
2150
2187
1854
2114
1882
1912
0689
1463
2199
2776
3233
3483
3585
3489
3086
2923
2850
2684
_ 1845 anp 1846.
Mean Time.
Jan. Feb. | March.| April. | May.
Mak.
h. Se. Div. | Se. Diy. | Se. Div. | Se. Div. | Se. Div.
12 531-97) 535-40|537-80)| 535-40/539-33
13 |531-27| 534-91 |534-51|533-75|538-18
14 ||526-11|533-87 |532-13| 526-60] 537-21
15 1533-93) 533-95 |535-32| 534-97 | 537-07
16 |535-94|535-63|533-77 | 533-65 | 536-85
17. ||537-67| 536-03 | 536-24/535-38|535-54
18 ||538-25|537-63|536-03 | 534-45 |534-76
19 |538-55)]537-30|534-73 | 532-88 |530-52
20 ||536-89|535-91|530-90|527-70|526-57
21 |536-46| 532-50) 528-22 |522-76| 524-59
22 1534-06) 531-56/525-01|520-52|524-77
23 ||535-25|531-93|527-75 | 522-09| 526-59
0 |535-72| 533-43 |531-71|525-44/530-88
1 |537-44|535-52|533-96 | 530-97 | 536-34
2 |'536-70|537-34|539-03 | 536-23 | 540-00
3 |536-92| 538-76 |540-26 | 540-35 | 544-30
4 ||536-84|537-56|541-06 | 543-61 | 548-14
5 ||536-94| 537-43 |540-32| 545-40) 549-39
6 1536-80) 537-70|540-37 |546-13 | 550-47
7 1535-31|538-17| 540-63 | 545-44 | 549-24
8 1535-94] 537-82|538-25 | 542-56) 546-57
9 |536-04| 537-64|540-11)541-40] 544-59
10 |533-37| 535-03] 538-45 | 540-88 | 542-35
11 536-35| 538-67|539-69| 541-07
June.
Se. Div.
542-27
540-78
539-95
539-57
539-49
537-68
535-72
532-90
529-20
526-90
525-94
529-37
535-78
540-03
543-74
546-29
547-55
549-32
550-32
550-64
548-64
546-88
545-34
543-26
July.
Sc. Div.
541-59
539-92
539-07
538-84
537-58
536-07
535-00
532-82
529-00
526-68
526-04
529-88
533-73
538-20
542-86
546-43
548-13
549-89
552-12
549-97
549-39
545-80
543-12
543-19
Aug.
Se. Div.
541-57
539-37
537-89
538:85
538-95
537-22
534-65
530-03
926-02
523-63
524-09
527-32
533°11
539-80
541-36
546-13
547-30
547-73
547-21
548-39
045-73
544-00
543-46
543-18
Sept.
Se. Div.
536-77
538-01
935-62
536-65
536-96
538-12
535-81
530-13
526-43
523-59
521-87
526-60
531-47
537-02
538-58
540-49
541-90
543-10
545-31
543-89
540-40
541-83
539-66
540-20
0881 | 1378 | 1 327 | 1344 | 0435
1645 | 1973 | 1702 | 2264 | 2121 | 1133
2157 | 2492 | 2355 | 2482 | 2339 | 1317
2759 | 2849 | 2855 | 3150 | 2607 | 1578
3297 | 3025 | 3093 | 3314 | 2804 | 1571
3472 | 3273 | 3339 | 3374 | 2972 | 1652
3623 | 3413 | 3651 | 3301 | 3282 | 1863
3451 | 3458 | 3350 | 3466 | 3083 | 1877
3077 | 3178 | 3269 | 3094 | 2594 | 1810
2800 | 2932 | 2766 | 2852 | 2794 | 1814
2486 | 2716 | 2391 | 2776 | 2491 | 1555
2307 | 2425 | 2401 | 2737 | 2566 | 1469
0421
0791
0946
1088
0966
1162
1081
0967
0918
0853
0890
0890
| 2003 |
| 1922
0728 |
1292 |
1649
1974 }
2122
2239
2387
2279 |
1711 |
1667
14 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XXIV.—List of Ten Days in each Month of 1845 upon which the Horizontal Component
of Magnetic Force was least disturbed.
TABLE XXV.—Hourly Means of the Bifilar Magnetometer Scale Readings corrected for Tempera- _
ture, for the Ten Days least disturbed in each Month of 1845, corrected so that the Mean of each —
Ten Days equals the Monthly Mean.
March.} April. | May.
Se. Div. | Sc. Div. | Se. Div.
38-06 | 39-14| 40-33
36-21 | 37-71 | 39-79
35-80} 36-53 | 39-11
36:30 | 35-22| 38-79
36:59 | 35-67 | 38-38
36:99} 37-07 | 36-35
36-55 | 35-20 | 34-95
35-89 | 32-35 | 31-91
32-49 | 27-52) 27-38
29-29} 23-04 24-61
26-34 | 19-24} 24-51
26-89 | 20-74| 26-09
30-73 | 24-13} 30-44
32-71 | 29-48 | 35-34
36-02} 35-37 | 39-57
38-31] 38-08 | 44-04
38-77 | 39-99 | 45-46
38-32 | 42-79} 48-14
38-61] 43-81 | 48-63
39-87 | 43-88 | 47-37
38-32 | 41:34) 45-72
38-54 | 40-19 | 44-95
38-56 | 40-07 | 42.47
38-96 | 39-67 | 41-08
RKP OOOANA UE WHE SO
et fed
HorRIZONTAL COMPONENT OF MAGNETIC Force, 1845. 15
TABLE XXVI.—Mean Variations of the Horizontal Component of Magnetic Force, with reference
to the Moon’s Hour-Angle for each Lunation, for the Six Summer and Seven Winter Lunations,
and for the whole Thirteen Lunations of 1845.
LUNATIONS.
Ist. 2d. é r . | 6th. | 7th. | 8th. | 9th. | 10th. 11th.
0:00 | 0:00 | 0-00 000 | 0:00 | 000 | 000 | 000 | 0-00
0697 | 0210 | 0122 0337 | 0270 | 0490 | 0475 | 0112 | 0209
0722 | 0274 | 0412 0575 | 0276 | 0581 | 0707 | 0244 | 0039
0760 | 0113 | 0000 | 1064 0630 | 0409 | 0687 | 0363 | 0326 | 0014
0938 | 0272 | 0300 | 1121 } | 0459 | 0448 | 0868 | 0644 | 0109 | 0140
0626 | 0239 | 0246 | 1231 0276 | 0287 | 0721 | 0493 | 0000 | 0136
0589 | 0228 | 0179 | 1263 0241 | 0421 | 0778 | 0311 | 0071 | 0084
0665 | 0258 | 0370 | 1256 0171 | 0316 | 0654 | 0399 | 0200 | 0112
0809 | 0342 | 0339} 1131 0000 | 0218 | 0641 | 0444 | 0190 | 0097
0469 | 0412 | 0262 | 0679 0287 | 0461 | 0515 | 0192 | 0000
0028 | 0318 | 0116 | 0000 0216 | 0605 | 0328 | 0599 | 0231
0000 | 0403 | 0207 | 1254 | 0: 0123 | 0232 | 0518 | 0353 | 0654 | 0301
0750 | 0263 | 0410 | 1247 0265 | 0286 | 0634 | 0487 | 0344 | 0280
0529 | 0323 | 0377 | 1485 0220 | 0200 | 0864 | 0287 | 0490 | 0305
0244 | 0179 | 0339 | 1323 0272 | 0330 | 0603 | 0560 | 0280 | 0486
0574 | 0134 | 0448 | 1452 0356 | 0283 | 0580 | 0381 | 0612 | 0402
0227 | 0137 | 0347 | 1296 0270 | 0251 | 0676; 0371 | 0647 | 0445
0816 | 0312 | 0291 | 1470 0231 | 0500 | 0158 | 0535 | 0399
0647 | 0489 | 0420 | 1366 0169 | 0218 | 0046 | 0515 | 0318
0400 | 0302 | 0489 | 1320 0000 | 0466 | 0059 | 0419 | 0413
0477 0329 | 1484 0025 | 0260 | 0153 | 0262 | 0406
0479 0182) 1212 0158 | 0143 | 0085 | 0325 | 0340
0582 0202) 1413 0097 | 0041 | 0000 | 0258 | 0482
0538 0078 | 1406 0280 0109 | 0451 | 0234
0386 0148 | 1238 0269 0070 | 0206
0678 0095 | 1175 0259 0119 | 0248
h.
0
1
2
3
4
5
6
7
8
9
| TABLE XXVII.—Differences between the Hourly Means of the Bifilar Scale Readings for the whole
| Series in each Month and those for the selected Ten Days; or Table XXII. minus Table XXV.
March.| April. | May. June.
Se. Div. | Se. Div. | Se. Div. | Se. Div.
— 0-26 | —3-74 : — 0-42
— 1-70 | —3-96 : — 0:20
— 3-67 | —9-93 : +0-07
— 0:98 | —0-25 : +0-16
— 2-82 | — 2-02 . +0-52
— 0-75 | — 1-69 . + 0-34
—0-52|—0-75 c + 0-20
—1-16)+0-53 . +0-14
—1-59|+0-18 . — 0-93
— 1-07 | —0-28 . —0-41
— 1-33 |+1-28 : + 0-30
+ 0:86 |+ 1-35 -00 | + 0-20
+0-98 |+1-31 : + 0-84
+1-25|+1-49 : —0-61
+3-01|+0-86 . +1-16
+ 1-95) + 2-27 . —0:15
+ 2-29 |+ 3-62 ' — 0-05
+2-00|+ 2-61 : — 0-22
+ 1-76 | + 2-32 —0-14
+0-76/+4 1-56 +0-08
— 0-07 |+ 1-22 —0-52
+1-57|+4+1-21
—0-11/)+0-81
— 0-29 |+ 0-02
KH COON OURWNH OO
at
16 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XXVIII.—Mean Difference of a Single Observation of the Bifilar Magnetometer from
the Monthly Mean at the corresponding Hour, for each Civil Day and Week in 1845.
Civil Jan. Feb. March. | April. May. June. July. Aug. Sept. Oct. Nov. Dec.
Se. Div. Se. Div. Se. Div. Sc. Div. Se. Div. Se. Div. Sc. Div. Se. Div. Se. Div. Se. Div. Se. Div. Se. Div. }
1 4-12 1-97 2-12 1-92 6-86 [4-15] 4-23 5-14 4-31 2-49 7-55 2-04
2 2-81 [2:97] | [2-89] 3-39 4-43 3-55 3-30 3-49 6-07 2-58 [4-54] 2-43
3 2-09 1-78 2-29 3-71 3-68 2-81 1-34 [4-28] 3-45 3-19 3-28 | 24-36
4 2-88 2-32 2-90 5-39 [3-71] 5-00 2-37 6-92 5-61 1-66 3-86 | 17-03
5 [3-92] 3-78 2-90 2-42 2-24 2-99 3-50 3-56 3-23 [2-66] 4-22 6-06
6
7
8
9
4.52 | 4-73 | 2-72 | [3-60] | 2-20 | 2-87 | [2-69]| 3-70 | 2.85 | 3.92 | 1-99 | 3.84
6-04 | 2-44 | 4.00 | 3-06 | 2:83 | 2.75 | 3-67 | 2-20 | [3-97] ].2.39 | 4-30 | [5-90]
5-20 | 1-59 | 2-99 | 3-13 | 1-66 | [3-02]| 2-48 | 4.16 | 481 | 2.20 | 1.59 | 2.65
14.28 | [2.67] | [2-70] | 3-87 | 255 | 3-08 | 277 | 9.95 | 4.31 | 5.86 | [23217] 2.53
10 | 11-05 | 2-42 | 217 | 446 | 248 | 4.32 | 1-54 | [3-18]| 3-03 | 7-63 | 1-88 | 3.98
11 1-72 | 1-81 | 1-87 | 3-51 | [2-88] | 2-10 | 2.22 | 9.08 | 3.63.1 3:45) eg) gee
12 || [6-36] | 3-04 | 2-44 | 4.75 | 3.29 | 3.95 | 3-10 | 2-67 | 4-03 | [3-87]| 2.98 | 3-09
13 3-20 | 3-07 | 2-90 | [6-84] | 3-34 | 4-60 | [2.55]| 4-85 | 3-50 | 1-85 | 2.65 | 614 JE
14 | 419 | 2.32 | 4.86 | 2247 | 3.98 | 2.99 | 2.87 | 3.44 | [3-33]| 2-12 | 2.98 | [3-98] f
4
15 || 3-70 | 265 | 2-99 | 3.07 | 3-90 | [3-19] | 263 | 5-45 | 1-72 | 242 | 3-45 | 5.64 [i
16 || 2-36 | [3-00] | [3-52] | 2-81 | 5-20 | 213 | 2.93 | 3.33 | 3-81 | 243 | [411]| 238 Jy
17 | 421 | 419 | 355 | 2.35 | 3-67 | 276 | 2.05 | [3-88]] 3-30 | 3-22 | 7.65 | 3.29 [7
18 || 3:93 | 2.52 | 2-92 | 4.55 | [4-00]| 2-74 | 2-75 | 4.84 | 5-43 | 3-85 | 497 | 298 Jy
ig || (5-11]| 325 | 390 | 553 | 5-43 | 1-75 | 3.35 | 292 | 4.15 | [4.08]| 298 | 241 [ie
20 || 11-75 | 7-02 | 5-11 | [3-94] | 3-20 | 3-14 | [2-80]| 3-32 | 3-46 | 3.87 | 1-68 | 3-02 97)
21 || 2-76 | 4.80 | 264 | 5-00 | 260 | 1-71 | 3-00 | 291 | [4-65]] 6-32 | 262 | [3-63] |)
22 | 5-63 | 3-89 | 243 | 3.47 | 3-82 | [230] | 1-87 | 3-20 | 205 | 4.80 | 1-98 | 4-50 it
23 || 4.52 | [6-22] | [4-50] | 2-75 | 247 | 2.71 | 3-81 | 3-85 | 4-36 | 1-00 | [3-18] | 5-30 J
24 | 5-47 | 852 | 4:94 | 4-65 | 3.86 | 2-01 | 5-43 | [3-74]| 8-27 | 271 | 1-97 | 3-57 Jy
25 | 4.23 | 7.06 | 7-39 | 3-91 | [3-30] ] 2-48 | 10-76 | 3-36 | 9-50 | 3-86 | 5-26 | 4-46 4
26 | [5-03] | 6.04 | 4:52 | 3-50 | 238 | 2-59 | 3-75 | 5-50 | 5-03 | [2-78]| 559 | 4.58 J
27 | 4-84 | 3-55 | 5-90 | [4-86] |} 3-03 | 3-03 | [4-60] | 3-63 | 6-12 | 238 | 5.33 | 427 .
28 | 5-61 | 3-59 | 252 | 7-86 | 4.24 | 366 | 2-60 | 2-48 | [5.08]| 4-40 | 3-59 | [4-13] J
29 || 5-50 3-11 | 5-17 | 4-03 | [3-41] | 267 | 827 | 3.97 | 2-35 | 3-84 | 3:12 J
30 | 4-06 [3-23] | 4.07 | 480 | 3-63 | 237 | 8-75 | 3-40 | 4.29 | [6.93]| 5-90 |”
31 || 3-90 2-57 4-74 2-87 | [5-55] 4.07 2-43
TABLE XXIX.—Mean Difference of a Single Observation of the Bifilar Magnetometer from the i
Monthly Mean at the corresponding Hour, with reference to the Moon’s Age and Declination,
for 1845.
Mean | Moon’s|} Mean
Difference.) Age. | Difference.
D
WOONAAARWNE OF
HorizONTAL COMPONENT OF MAGNETIC Force, 1845. 17
TABLE XXX.—Mean Difference of a Single Observation of the Bifilar Magnetometer from the
Monthly Mean at the corresponding Hour, for each Hour in each Month in 1845.
Mak. Jan. Feb. | March.| April. | May. | June. | July. Aug. | Sept. Oct. Nov. Dec. Year.
M.T Pp we y § Pp
h. Se. Div. | Sc. Div. | Se. Diy. | Se. Div. | Sc. Diy. | Se. Div. | Se. Div. | Se. Div. | Se. Div. | Se. Div. | Sc. Div. | Sc. Div. || Sc. Div.
12 5-82 | 4-31 | 3:59 | 8-02 | 3-91 | 2-04 | 2-53 | 3-40 | 5-72 | 5-62 | 2-52 | 6.94 |] 4.54
13 6-11 | 4-86 | 4-03 | 8-93 | 3-57 | 2-70 | 2-68 | 3-60 | 4-51 | 3-20 | 2-63 | 6-32 || 4-43
14 ||14-29 | 4.37 | 6-14 |18-24 | 3-44 | 2-47] 2-08 | 487 | 4-11 | 3.30 | 2-23] 5-19 || 5-89 |
15 4.46 | 4.00 | 3-67 | 4:38 | 4-34 | 2-84 | 2:89 | 3.38 | 4:05 | 2-50 | 2-44] 4.48 || 3-62
16 4-31 | 3-05 | 5-29] 5-14 | 3-19 | 2:80 | 3-69 | 2-63 | 3-78 | 2-61 | 2-80 | 3-28 || 3-55
17 3:50 | 3-63 | 3-27 | 3-90 | 3-55 | 2-07 | 2-65 | 3-42 | 4-48 | 3-03 | 2-46 | 3.87 || 3.32
18 2-63 | 2-93 | 2:42 | 3-61 | 3-81 | 2-27 | 2-92 | 3-77 | 4-89 | 3-30 | 2-94 | 3.24 || 3-23
19 2:95 | 3-10 | 3-10 | 3-38 | 4.62 | 2-60 | 2-81 | 4.35 | 5-48 | 1-99 | 4-17 | 3-04 || 3-47
20 3:19 | 3-28 | 3-58 | 3-42 | 4-41 | 3-00 | 3-46 | 5-22 | 5-58 | 3-43 | 3-49 | 3-30 || 3-78
21 3:80 | 5-59 | 2-95 | 3-53 | 3-25 | 3-10 | 3-12 | 4.38 | 3-49 | 3-47 | 4-99 | 3-84 || 3-79
22 4-73 | 3-62 | 3-65 | 3-72 | 2-58 | 3-61 | 4:49 | 5-12 | 4-51 | 2.89 | 3-82] 3-88 || 3-88
23 4:10 | 3-40 | 2:56 | 4:16 | 3-46 | 3-94 | 4.57 | 5-05 | 4-19 | 4.29] 4-64 | 4-39 || 4-06
0 4:79 | 4-77 | 2.80 | 2-98 | 3-70 | 4-04] 3-58 | 490 | 3-32 | 4-07 | 3-61 | 5-43 || 4-00
1 3-82 | 3:52 | 2-41 | 3-67 | 3-30 | 3-35 | 4.33 | 5-70 | 3-77 | 4-48 | 3-65 | 4-11 || 3-84
2 3-94 | 2-90 | 2-39 | 4:08 | 4:03 | 3-91 | 3-31 | 6-50 | 4-80 | 3-60 | 3-93 | 3-96 || 3-95
3 2-53 | 2-99 | 2-27 | 4.42 | 4-12 | 3-76 | 3-98 | 6-36 | 4-77 | 3-20 | 2-73 | 3-21 3-70
4 3:33 | 2-90 | 4:42 | 4-61 | 4-66 | 3-56 | 2-66 | 4-77 | 5-31 | 3-13 | 4-73 | 3-53 || 3-97
5 3-63 | 3-08 | 1-77 | 2-93 | 3-68 | 3-80 | 3-65 | 2-97 | 3-16 | 2-68 | 3-82 | 4-09 || 3-27
6 3-43 | 4:22} 3:00 | 2-27 | 3-55 | 3-50 | 2-98 | 2-22 | 2.32 | 2-71 | 3-70 | 13-27 || 3.93
7 5-11 | 2-55 | 3-22 | 2.54 | 3-04 | 3-28 | 3-17 | 2-62] 4-06 | 2-53 | 4-76 | 6-62 |) 3.62
8 4:53 | 3-42 | 4.02] 3-63 | 2-61 | 2-05 | 3-00 | 3-33 | 5-73 | 2-20 | 4-69 | 6-69 || 3-82
9 7-32 | 4:39 | 4-19 | 3-01 | 3-19 | 2-34 | 2-61 | 4-34 | 3-38 | 3-29 | 4:65 | 5-71 |] 4-03
10 8-07 | 3-82 | 3-77 | 3-80 | 2-74 | 2-20 | 2.99 | 2-83 | 4.91 | 4-54 | 3-55 | 5-82 || 4-09
11 9-25 | 3-66 | 3-33 | 3-17 | 3-40 | 3-09 | 2-52 | 3-20] 4-39 | 5:00 | 2-92] 5-41 |) 4-11
MAG. AND MET. oBs. 1845 ann 1846. E
18 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XXXI.—Mean Values of the Variations of the Vertical Component of Magnetic Force, the
whole Vertical Component being Unity, for each Civil Week-Day and Week of 1845.
als Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec
0-00 0:00 0:00 0.00 0:00 0°00 0°00 0-00 0-00 0-00 0-00 O00
1 6201 5760 5601 5468 4717 | [5100]| 4573 4771 4489 4493 4319 4264
2 6150 | [5786] [5555] | 5401 5305 5082 4912 4369 4505 4326 | [4398]! 4295
3 6089 5774 5560 DaL7, 5275 5090 4813 | [4626]| 4905 4475 4330 5219
4 6014 5712 5525 5492 | [5262]| 5262 4883 4693 4842 4381 4535 4683
5 [6036] | 5993 5524 5475 5425 5164 4737 4635 4744 | [4415]| 4766 4703
6 5983 5823 5478 | [5481]| 5419 5061 | [4746]|} 4651 4843 4523 4436 4577
7 5977 5712 5487 5460 5432 5056 4685 4662 | [4698]| 4427 4264 | [4547]
8 6001 5708 5525 5412 5462 | [5063]| 4694 4525 4673 4361 4150 4535
9 5977 [5710] [5520] 5533 5329 5019 4662 4654 4581 4262 | [4294]| 4419
10 6068 5643 5525 5378 5279 5011 4743 | [4701]| 4504 4297 4359 4365
nal 6032 5677 5569 5481 [5199] |} 5066 4766 4812 4625 4478 4195 4295
12 [5987]| 5698 5536 5523 5001 4980 4936 4760 4566 | [4283]| 4360 4317
115 6018 5582 5528 [3324] 5057 4996 [4829] 4793 4543 4376 4423 4506
14 5957 5588 5507 4848 5069 4957 4897 4687 | [4582]| 4155 4398 [4315]
1) 5872 5593 5455 5325 5119 | [5083] 4892 4800 4638 4131 4381 4315
16 5912 | [5562] | [5472] 5387 5158 O17 1 4739 4887 4575 4267 | [4379]| 4213
17 5955 5587 5356 5431 5194 5187 4732 | [4732]| 4548 4288 4405 4247
18 5856 5542 5474 5458 | [5149]| 5210 4648 4537 4168 4237 4392 4333
19 [5750]| 5478 5511 5245 4905 4881 4620 4724 4345 | [4237]| 4273 4322
20 5131 5450 5424 | [5368]} 5318 4895 | [4728]| 4756 4543 4214 4200 4256
21 5815 5562 5418 5330 5202 4816 4764 4737 | [4422]| 4287 4326 [4249]
22 5834 5580 5322 5384 5227 | [4948]| 4759 4758 4474 4128 4408 4239
2} 5887 | [5464] [5387] 5359 5162 5051 4845 4567 4584 4299 [4307] 4187
24 5757 5320 5391 5407 5219 4988 4918 | [4646]; 4418 4414 4453 4155
25 6016 5387 5282 5462 | [5226]| 5055 4249 4508 4301 4291 4370 3974
26 [5846]| 5484 5488 5252 5259 4991 4681 4646 4340 [4304] 4083 3919
27 5853 5531 5438 | [5245]| 5274 4986 | [4675]| 4662 4435 4413 3906 4029
28 5909 5588 5422 4966 5218 5047 4715 4555 | [4379]! 4236 3980 | [4011]
29 5654 5509 5142 5111 [4891] 4769 4326 4381 4174 3967 4122
30 5766 [5457] |] 5243 5084 4837 4716 4253 4322 4159 [4272] | 3975
il Die 5502 4970 4636 [4505] 4278 / 4048
TABLE XXXII.—Mean Variations of the Vertical Component of Magnetic Force, after Eliminating
the Secular Change, with reference to the Moon’s Age, Declination, and Distance from the Earth, —
for 1845.
Variations Variations || After | Variations} After | Variations|| Before | Variations
Moon’s || of Ver- | Moon’s| of Ver- Moon of Ver- | Moon | of Ver- and of Ver- and
Age. ||tical Com-| Age. | tical Com-||farthest | tical Com-|farthest| tical Com-|| after | tical Com-| after | tical Com-
ponent. ponent. | North. | ponent. | North. | ponent. |/Perigee.| ponent. ponent.
Day. 0-00 Day. 0-00 Day. 0-00 Day. 0:00 Day. 0-00 y.
15 0051 0) 0052 0 0170 14 0170 Te 0133 7
16 0069 1 0061 1 0106 15 0132 6 0129 6
17 0044 2 0100 2 0128 16 0160 5 0115 3
18 0068 5) 0104 3 0000 17 0237 4 0117 4
19 0109 4 0142 4 0065 18 0190 3 0101 3
20 0101 5 0135 5) 0123 19 0186 2 0159 2
21 0045 6 0144 6 0152 20 0138 if! 0138 1
22 0077 7 0069 7 0134 21 0198 || P 0130 A
23 0103 8 0037 8 0161 Be 0168 1 0168 1
24 0069 9 0045 9 0158 23 0089 2 0243 2
25 0021 10 0089 10 0102 24 0136 3 0193 3
26 0034 iL 0069 11 0166 25 0150 4 0152 4
Dil 0000 12 0003 12 0152 26 0105 || 5 0166 5
28 0029 13 0037 13 0160 27 OLSyas 6 0142 6
29 0025 14 | 0053 | | ies os J0063 | Ff
| | ! t ‘ '
VERTICAL COMPONENT OF MAGNETIC Forces, 1845. 19
TABLE XXXIII.—Diurnal Range of the Vertical Component of Magnetic Force for each Civil Day,
as deduced from the Hourly Observations, with the Mean for each Week in 1845.
Feb. March.
0:00 0:00
0231 | 0724
[0585] | [0514]
0147 | 0247
0275 | 0183
1821 | 0254
0329 | 0135
0282 | 0421
0214 | 0314
[0275] | [0316]
0339 | 0555
0259 | 0253
0228 | 0219
0493 | 0361
0165 | 0715
0117 | 0672
[0234] | [0724]
0361 | 0876
0105 | 0694
0166 | 1029
0535 | 3361
0987 | 0944
1083 | 0758
[1320] | [1894]
1588 | 2383
1720 | 2629
2005 | 1292
0736 | 1638
0940 | 0420
0759
[0602]
0245
TABLE XXXIV.—Means of the Diurnal Ranges of the Vertical Component of Magnetic Force,
with reference to the Moon’s Age and Declination, for 1845.
After After
Moon’s Mean Moon Moon
Age. Range. ||/farthest . |farthest
North. North.
0:00 D
0435
0792
0640
0522
0822
0524
0617
0548
1110
0564
0406
0519
1029
0518
0455
o
4
ee a ae
RwWNeoontauhwnworoe
OMWNANAEWNHE OF
20 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
XXXV.—Hourly Means of the Micrometer Readings of the Balance Magnetometer, corrected
for Temperature, for each Month, and for the Year 1845.
Mean Time.
Jan. Feb. | March.| April. | May. | June. | July. | Aug. | Sept. | Oct.
Gott. | Mak.
Mic. Div.| Mic. Div.| Mic. Div.| Mic. Div.] Mic. Diy.| Mic. Div. | Mic. Div. | Mic. Div.| Mic. Div. | Mic. Div.| Mic. Div.| Mic. Div. || Mi
578:3 | 547-2| 529-8| 500-7| 507-5| 495-1 | 464-2) 443-5] 433-0) 416-8] 422-8) 425.9
576:8| 546-4] 524-4] 508-2] 498.6] 495-9| 462-9| 443-5] 421-5) 414-7] 422.0) 421.7
569-2| 545-8| 523-5] 507-0| 499.3) 497-9| 461-0| 445-0] 426-5} 414-7) 418-1} 421-1
574-5 | 547-7| 520-1} 521-2) 497.3| 502-4| 461-3 | 444-8] 425-3] 416-0] 418-8] 418.4
577-4| 548-4] 528-6| 519-2) 512.0| 507-6| 465-4| 451-6] 429-8) 418-2] 419.6] 419.7
578-6| 548-7] 534-7| 528-9] 519-8| 511-4] 467-6| 458-2] 433-1] 419-3] 420-3) 419-8
581-1] 548-6} 541-3| 537-5| 524.5| 514-5] 472-4| 465-2] 441-2| 422.3) 420.2) 420.3
581-7| 550-5| 545-6| 541-6] 526-4| 515-0] 474-6| 469-3} 450-0 | 427-2| 422.0] 420.7
582-5| 552-7| 550-4] 544-1] 522.4) 513-9] 477-2] 469-0| 452-9] 431-5] 425.4] 422.5
582-2) 555-7| 550-5| 543-4] 517-0) 507-9| 474-0] 467-9] 454-5 | 432-5] 426.5] 423.4
586-1] 557-7] 550-2| 541-0} 511-9} 500-4] 473-8] 465-8| 455-7 | 429-3) 425-6] 424.3
590-5| 558-4] 545-6| 535-6] 508-2] 490-3] 468-9} 461-8] 454-8 | 430-2] 428.9| 496.6
591-3 | 561-4| 542-6] 531-1] 507-9| 486-6| 466-1 | 460-2] 455-5] 433-2] 432.9) 429.8
595-9| 566-4] 545-5| 534-8] 513-8| 489-7} 468-9] 465-0] 465-7] 436-7] 435-8| 433-0
602-2} 572-4) 552-1!| 541-6] 519-3] 493-8] 472.4] 473-5] 477-1| 443-2] 440.9] 439.5
607-9 | 581-9} 560-1] 549-2] 528-8| 500-6] 479-0] 481-1] 483-3] 447-4] 445.5] 450.0
609-1] 583-5} 570-1] 551-9} 534-1| 509-4] 485-9 | 487-9} 485-8 | 451-2| 447-7) 450.7
610-7| 587-0! 583-0] 555-5} 540-5] 513-4] 489-7] 489-9] 489-2] 448-0] 447-4| 453.9
610-3} 583-2| 579-0] 558-8] 540-5] 514-3] 490-3] 487-3] 475-0] 444-0 | 447-1] 453.8
613-2| 576-2| 569-3! 556-6] 535-5| 512-4] 489-6] 478-8| 470-0} 440-9 | 443.3] 449.5
611-1] 572-8} 562-2} 549-9| 531-6] 510-3] 486-0] 472-7] 464-1] 438-2] 439-8} 437.1
601-2| 566-3} 552-4] 543-8] 525-4] 505-1| 479-3) 459-3] 455-6| 436-0] 433-7] 434.9
582-5| 563-2] 541-9] 535-8} 521-6} 499-4] 474-8} 458-1] 445-1] 432-2] 428.9] 431-9
574-3] 555-2) 538-1] 528-6} 517-7| 494-9| 471-0] 444-8] 437-6| 420-0] 424.4] 498.0
March, May. | June. 5 - | Sept. Oct.
0-00 0-00 0-00 E 0:00 0-00 0-00
0097 0102 | 0085 0115 | 0021 | 0047
0043 0013 | 0093 0000 | 0000 | 0039
0034 0020 | 0113 0050 | 0000 | 0000
0000 0000 | 0158 0038 | 0013 | 0007
0085 0147 | 0210 0083 | 0035 | 0015
0146 0225 | 0248 0116 | 0046 | 0022
0212 0272 | 0279 0197 | 0076 | 0021
0255 0291 | 0284 0285 | 0125 | 0039
0303 0251 | 0273 0314 | 0168 | 0073
0304 0197 | 0213 0330 | 0178 | 0084
0301 0146 | 0138 0342 | 0146 | 0075
0255 0109 | 0037 0333 | 0155 | 0108
0225 ‘ 0106 | 0000 0340 | 0185 | 0148
0254 0165 | 0031 0442 | 0220 | 0177
0320 0220 | 0072 0556 | 0285 | 0228
0400 0315 | 0140 0618 | 0327 | 0274
0500 0368 | 0228 L 0643 | 0365 | 0296
0629 0432 | 0268 0677 | 0333 | 0293
05389 0432 | 0277 0535 | 0293 | 0290
0492 0382 | 0258 0485 | 0262 | 0252
0421 0343 | 0237 0426 | 0235 | 0217
0323 0281 | 0185 0341 | 0213 | 0156
0218 0243 | 0128 0236 | 0175 | 0108
0180 0204 | 0083 0161 | 0053 | 0063
BPOUOUOanNarrhwnroc
—
VERTICAL COMPONENT OF MAGNETIC Force, 1845. 21
TABLE XXXVII.—List of Days in each Month of 1845 upon which the Vertical Component
of Magnetic Force was least disturbed.
March.
,
TABLE XXXVIII—Hourly Means of the Balance Magnetometer Micrometer Readings corrected
for Temperature, for the least disturbed days in each Month of 1845, corrected so that the Mean
of each Monthly Series equals the true Monthly Mean.
Feb. | March.| April. . | June. | July. | Aug. | Sept. Oct. Nov. : Year.
Mie. Div. | Mic. Div.| Mic. Div. Mic. Div, | Mic. Diy. | Mic. Div. | Mic. Div. | Mic. Div.| Mic. Div. - || Mie. Div.
559-8 | 542-7] 526-2 496-6 | 468-5) 454-4) 441-0} 421-0] 424-5 488-8
558-3 | 543-6| 528-0 497-4 | 468-4] 454-4) 439-9} 422.0) 424.3 488-9
556-2 | 545-1} 531-8 499-9 | 470-2| 456-5| 444-8} 423-5 | 422.7 ‘0 || 490-1
556-8 | 544-8 | 533-3 505-2 | 472-0] 459-0} 444-7] 423-1| 422.7 491-0
557-2| 545-0} 533-3 510-6 | 476-2| 463-2) 446-9] 423-2] 422-0 492-5
557-5 | 545-7 | 534-5 514-6 | 478-1 | 466-1| 447-3] 422-5) 422-3 493-4
556-6 | 546-3} 536-9 517-8 | 479-9} 469-7 | 451-0| 423.2) 422-1 494-9
557-1] 548-0} 542-1 517-6 | 477-6| 473-1] 457-5] 426-8} 423-6 -4|| 496-7
557-8 | 550-5 | 545-1 517-0 | 477-5 | 470-0| 459-3 | 429-0 | 427.3
557-9 | 550-0) 543-9 510-3 | 473-3] 470-2) 458-7| 430-6 | 428-0
559-4} 448-5} 541-5 -2| 501-9] 473-0) 465-3 | 456-7 | 428-6| 428-3
559-1} 544-0} 534-1 -3| 491-7| 466-3 | 459-2} 454-0] 428-4} 431-3
560-4) 540-8 | 527-6 488-7 | 462-5 | 457-6| 449-1] 428-9| 435.2
561-7} 542-1] 529-8 491-3 | 463-2] 460-3 | 454-8) 431-9] 437-5
564-9 | 545-7 | 535-2 494-9 | 466:3| 465-8 | 464-8} 438-0| 440-7
569-3 | 551-8} 538-7 498-9 | 473-6| 471-8 | 470-1| 444-5) 442-0
570-7 | 556-0} 540-3 ‘8| 504-6} 480-0| 476-5 | 469-7| 448-9| 441-7
569-8 | 555-9| 541-1 -6| 506-4) 483-4] 476-2) 464-8 | 447-4] 439-9
568-4} 553-8| 542.2 507-7 | 484-3] 471-7| 459-5} 443-7| 438-1
566-4 | 551-6} 542-9 506-5 | 482-8 | 465-7 | 454-9) 440-2) 436-3
565-6 | 551-8| 540-1 505-5 | 480-4 | 462-5] 453-6] 436.2| 435-2
565-1) 548-1] 537-3 502-0 | 476-1] 460-4] 452-3 | 431-4) 432.3
562-7 | 545-7 | 533-0 498-4 | 472-8] 458.3 | 445.9) 428-1) 430-8
559-6 | 543-1 | 528-3 495-8 | 468-7 | 454-7) 439-7| 423.1) 428-3
SK COON ADAH Whe
—
22 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XXXIX.—Mean Variations of the Vertical Component of Magnetic Force, with reference to
the Moon’s Hour-Angle, for each Lunation, for the Six Summer and Seven Winter Lunations,
and for the whole Thirteen Lunations of 1845.
LUNATIONS.
Moon’s
Hour- =
Angle. || Ist. | 2d. | 3d. | 4th. | 5th. | 6th. | 7th. | Sth. | 9th. | 1Oth.| 11th. | 12th. | 18th. |) Sam
000 | 000 | 000 | 000 | 000 | 000 | 000 | 0-00 | 000 | 000 | 000 | 0-00 | 0-00 0-00
0168 | 0051 | 0128 | 0198 | 0189 | 0032 | 0078 | 0017 | 0218 | 0048 | 0097 | 0160 | 0048 || 0046
0172 | 0052 | 0077 | 0181 | 0213 | 0036 | 0100 | 0054 | 0218 | 0101 | 0097 | 0212 | 0057 || 0058
0176 | 0039 | 0064 | 0117 | 0208 | 0043 | 0094 | 0058 | 0248 | 0162 | 0103 | 0203 | 0051 || 0052
0140 | 0014 | 0028 | 0161 | 0202 | 0068 | 0094 | 0055 | 0209 | 0173 | 0070 | 0177 | 0047 || 0056
0079 | 0019 | 0005 | 0162 | 0164 | 0097 | 0093 | 0061 | 0198 | 0109 | 0067 | 0072 | 0048 || 0054
0000 | 0163 | 0166 | 0105 | 0081 | 0060 | 0180 | 0129 | 0042 | 0071 | 0042 |) 0050
0040 | 0065 | 0012 | 0176 | 0135 | 0107 | 0085 | 0085 | 0139 | 0178 | 0034 | 0048 | 0036 || 0046
0086 | 0055 | 0042 | 0099 | 0161 | 0114 | 0066 | 0105 | 0122) 0177 | 0030 | 0044 | 0013 || 0036
0091 | 0026 | 0076 | 0060 | 0217 | 0096 | 0066 | 0091 | 0101 | 0177 | 0036 | 0031 | 0018 || 0030
0000 | 0023 | 0126 | 0000 | 0226 | 0099 | 0066 | 0061 | 0068 | 0157 | 0056 | 0000 | 0017 || 0011
10 || 0017 | 0043 | 0152 | 0148 | 0243 | 0095 | 0041 | 0048 | 0090 | 0243 | 0073 | 0020 | 0020 || 0035
11 0146 | 0058 | 0175 | 0228 | 0245 | 0078 | 0046 | 0036 | 0069 | 0197 | 0095 | 0016 | 0036 || 0041
12 | 0144 | 0078 | 0255 | 0271 | 0239 | 0091 | 0050 | 0027 | 0000 | 0166 | 0092 | 0075 | 0034 || 0037
13 | 0179 | 0097 | 9233 | 0293 | 0250 | 0100 | 0049 | 0073 | 0053 | 0121 | 0075 | 0085 | 0049 || 0061
14 || 0215 | 0129 | 0236 | 0290 | 0262 | 0086 | 0033 | 0078 | 0060 | 0120 | 0073 | 0071 | 0052 || 0059
15 || 0200! 0131 | 0245 | 0320 | 0252 | 0086 | 0033 | 0078 | 0042 | 0129 | 0084 | 0061 | 0045 || 0060
16 || 0187 | 0114 | 0269 | 0298 | 0248 | 0081 | 0038 | 0056 | 0032 | 0122 | 0084 | 0085 | 0044 || 0050
17 | 0182 | 0096 | 0268 | 0212 | 0211 | 0079 | 0029 | 0057 | 0046 | 0131 | 0089 | 0080 | 0024 || 0030
18 | 0209 | 0075 | 0244 | 0226 | 0146 | 0061 | 0027 | 0050 | 0062 | 0147 | 0084 | 0078 | 0029 || 0020
19 | 0178 | 0056 | 0219 | 0240 | 0118 | 0050 | 0005 | 0058 | 0089 | 0114 | 0057 | 0060 | 0011 || 0018
20 | 0157 | 0030 | 0229 | 0233 | 0000 | 0047 | 0000 | 0051 | 0122 | 0093 | 0044 | 0031 | 0008 |; 0000
21 0180 | 0035 | 0167 | 0242 | 0092 | 0046 | 0015 | 0040 | 0151 | 0064 | 0000 | 0025 | 0000 || 0022
22 | 0221 | 0004 | 0176 | 0294 | 0185 | 0018 | 0041 | 0017 | 0156 | 0054 | 0010 | 0040 | 0005 || 0043
23 | 0172] 0000 | 0126 | 0254 | 0188 | 0000 | 0049 | 0000 | 0176 | 0017 | 0036 | 0037 | 0010 || 0036
COOnNaunrBwnwrd
SS)
oS
—
iN
So
So
—
NI
TABLE XL.—Differences between the Hourly Means of the Balance Micrometer Readings for the whole
Series in each Month, and those for the selected Days; or Table XX XV. minus Table XX XVIII.
Mak: Jan. Feb. | March,| April. | May. | June. | July. | Aug. | Sept. Oct. Nov. Dec.
Mic. Div. | Mic. Div.| Mic. Div.| Mic. Div. | Mic. Div.| Mic. Div.| Mic. Div. | Mic. Diy.| Mic. Div. | Mic. Diy. | Mic. Div.| Mic. Diy.
— 10-0 — 64] —1-5 — 8-0| —4-2 | —1-7
—16-0} —1-5 : -9|—18-4| —7-3 .
—17-5|; —2-0 : : — 8-8
—2-8
— 3-0
— 3-2
— 3:3
— 2-6
—3-1
| ~2.4
—1-5
—1-4
— 2-1
— 1-6
+++t+H+t+¢¢4¢4+44 1
HHP HEHEHE $EH |
0
1
2
3
4
3)
6
a
8
9
0
1
—
VERTICAL COMPONENT OF MAGNETIC Force, 1845. 23
TABLE XLI.—Mean Difference of a Single Observation of the Balance Magnetometer from the
Monthly Mean at the corresponding hour, for each Civil Day and Week in 1845.
i. Jan. Feb. March. | April. May. June. July. Aug. Sept. Oct. Nov Dec.
Mic. Diy. | Mic. Diy. | Mic. Diy. | Mie. Div. | Mic. Div. | Mic. Div. | Mic. Dlv. | Mic. Div. | Mic. Div. | Mic. Div. | Mic. Div. | Mic. Div.
1 29-7 14-4 15-2 12-9 65-6 [14-8] 20-4 23-7 14-7 18-3 14-6 3
2 || 24.6 | [19-0] | [12-2]] 8-7 | 13-8 Aled izal, Th esdeort | eaOe2e | 56/ [ergaq: ie! ais
3 18-7 17-2 13-8 15-7 11-4 8-9 11-0 [16-6] 40-2 16-7 8-4 91-9
4 13-7 11-7 13-4 13-1 [26-8] 23-2 14-3 13-2 30-8 8-5 22-8 41-4
5 [16-1] 37-8 13:5 16-9 23-3 14-1 14-2 11-2 21-7 [11-7] 47-5 38-8
Fae 13-9, ,| 21-6, || 14-5 9) [14-1] | 22-7 4.6 | [11-8] | 7-9 | 30-9 | 21-3 | 248 | 26-41
7 11-0 11-7 14-2 10-3 24-0 6-7 10-9 6:3 [20-7] 11-8 11-2 [25-1]
8 14-5 10-3 10-6 9.2 27-0 [10-2] 9-6 12-2 20-3 6-1 15-7 22-0
9 || 44-5 | [11-2] |[123]] 19-6 | 13-6 | 16-2 | 106 | 12.9 9-8 | 149 | [12-7] | 14-2
10 19-4 5°D 8-6 10-6 10-8 12-3 12-8 [13-1] 10-7 29-4 6-2 8-4
li 13-6 7:9 11-8 13-4 [16-5] 7-2 3-5 16-9 12-5 16-9 11-3 11-7
12 || [18-4] | 10-1 | 140 | 162 | 19.3 $919.60 41 91440 0| 13-24) Aso} F730 5-7
ul) 12:6..| 7-4 8-4 | [23-1] | 14.9 | 13-2 | [13-9] | 15-9 8-5 g71 | 8-6) Pe20n1
14 11-2 8-6 9.4 85-6 13-6 9-3 16-6 13-0 [12-7] 20-1 10-9 [10-3]
15 9.4 9.4 10-4 6-7 18-4 [13-0] 15-2 20-2 15-7 17-9 9-2 6:
16 Bers! [10-0] | (o-ziile G0) | 13-3,)° (13-7 | 15-9 | 244. | 15-4 | 46 | [11-1] | 10-6
17 11-8 7-4 11-9 12-4 12-3 15-2 4-8 [16-8] 10-7 12-1 18-2 7-4
18 9-6 10-2 8-1 14-3 [16-8] 17-8 13-5 20-1 36-6 11-9 10-7 5-6
19 [23-3] 17-0 10-2 15-6 33-0 15-4 12-0 12-0 21-5 [14-3] 5-6 8-4
20 89-4 19-2 44.0 [12-4] 14-4 15-1 [10-3] 11-4 14-9 13-2 10-9 7:2
21 10-5 16-1 17-9 12-7 9.2 21-8 4-8 14-1 [19-9] 19-6 6-3 [10-0]
22 9.2 11-2 16-2 10-3 8-5 [12-0] 12-3 11-5 11-4 24.3 10-2 10-0
23 ie! [25-1] || (edie 93) 1l4, |, 44 442°! (126 |) 171 6-5 | [129] | 128
24 25-7 34-4 35-9 9-0 10-0 8:7 19-6 [12-5] 17-7 10-4 14-5 16-0
25 14-8 41-0 33-7 23-1 [ 9-9] 6-6 58-6 14-1 69-3 14.5 11-4 34-1
26 [17-8] 28-6 16-6 12-0 9-2 6-4 6-3 13-2 19-8 [11-8] 23-9 39-6
27 || 10-6 8-8 | 16-0 | [22-7] | 10-0 oy Ae § De A CP
28 14-8 8-3 9-9 01-2 10-3 9-8 5-2 13-7 [26-6] 15-4 32:8 [30-4]
29 32-8 11-3 21-8 12-2 [13-2] 9-5 33-2 15.4 13-6 34-0 19-3
30 13-8 [12-3] 19.2 12-2 19-5 5-3 46-7 21-3 15-9 [35-3] 34-2
31 19-4 14-9 25-5 12-5 | [29-8] 7-4 26-7
TABLE XLII.—Mean Difference of a Single Observation of the Balance Magnetometer from the
Monthly Mean at the corresponding hour, with reference to the Moon’s Age and Declination,
for 1845.
After
Moon’s Mean Moon’s Mean Moon Mean Moon Mean
Age. | Difference.) Age. |Difference.||farthest | Difference. | farthest | Difference.
Day. Mie. Div Day. Mic. Div. Day. Mic. Div. Day. Mie. Div.
15 13:3 0 17-6 0 12-5 14 17-2
16 14-5 1 17-8 1 17:5 15 11-4
17 15-8 2 15:3 2 14-2 16 14-5
18 15-4 3 13-5 3 25-7 17 29-6
19 14-9 4 18-8 4 15-4 18 17-8
20 14-6 5) 17-5 5 16-1 19 15-2
21 20-2 6 18-2 6 14-3 20 18-2
22 14-7 a 14-0 7 16-7 21 13-3
23 16-0 8 19-8 8 ° 18-7 22 13-4
24 18-3 9 14-5 9 19-3 23 18-5
: . 10 21-2 24 11-3
11 17-5 25 13-8
12 14-9 26 13-3
13 15-5 27 14-3
24 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XLIII.—Mean Difference of a Single Observation of the Balance Magnetometer from the
Monthly Mean at the corresponding hour, for each Hour in each Month in 1845.
Jan. Feb. | March.| April. | May. | June. | July. | Aug. | Sept. | Oct. Nov. Dec. Year.
h. Mic. Div. | Mic. Div.| Mic. Div. | Mic. Div. | Mic. Div.| Mic. Div. | Mic. Div.| Mic. Diy.| Mic. Div.| Mic. Diy. | Mic. Div. | Mic. Diy. || Mic. Diy.
12 25-3 | 26-5 | 23-4 | 49-4 | 22.5 9-2] 14-1 | 24-3 | 18-8 18-1 13-1 18-1 21-9
13 23-3 | 24-3 | 30-1 36-1 | 35-9 9-5 | 16:0] 24.5 | 25.7 18-3 14-1 15-8 22-8
14 36:3 | 22-6 | 31-5 | 44-2 | 36-8 9-7 | 20-8 | 25-5 | 25-0 19.1 17:7 | 15-2 25-4
15 30-3 19-5 | 32-8 | 25-9 | 42.1 10:0 | 23-3 | 28-2 | 28-8 17-4 | 17-8 16-8 24-4
16 26-5 | 18-2 | 24-0 | 31-5 | 27-7] 10-6 | 22-1 25-1 | 27-8 15-8 | 16-5 16-1 21-8
17 21-8 | 18-4 | 17-9 18-7 | 20-7 11-7 | 22-0 | 20-7 | 29-0 13-9 | 16-3 | 17-8 19-1
18 19-7 | 17-7 | 11-2 | 10-9 | 16.7 11-5 18-4 | 16-7 | 27-1 12:5 16-9 | 17-3 16-4
19 18-3 | 15-1 8-4 | 12-3 15-27) 11-4) Ves2a es | 22-1 11-6 | 16-7 16-1 14-8
20 18-1 13-4 7-4 | 12-3 13-7 11-7 || 12:7 | 14-5 || 22-2 9-9 | 16-5 | 16-0 14-0
21 17-0 | 11-1 (2a 2:5 15-5 10-9 | 11-6 | 13-8 | 18-1 10-9 | -15-4 | 15-8 13-3
22 14-5 | 10-8 7-4 12-4 | 15-1 10-4 | 10-4 | 11-5 | 15-0 10-8 | 15-1 15-7 12-4
23 11-2 | 10-7 7-1 9-7 13-7 10-1 9-5 | 10-5 13-0 9-4] 13-4 | 15-4 11-1
0 11-4 | 10-7 7-5 9-8 | 13-8 9-2 9-8 | 10-4 | 13-3 | 10-1 | 12-4] 15-7 11-2
1 11-8 | 10-9 7-7 | 11-6 | 13-9 | 10-0 9-4] 11-9 | 19-9} 10-5 |} 13-1 | 15-6 || 12-2
2 12-7 | 11-6 7-2} 10-8 | 13-3 | 11-6 | 11-1 | 12-6 | 23-3 | 11-0 | 14-8 | 16-5 13-0
3 14-9 | 15:8 8-8 | 15-0 | 13-2} 13-0 | 10-9 | 12-6 | 23-3 | 13-5 | 18-2 | 28-0 || 15-6
4 14-9 | 14-3 | 12-4} 13-6 | 12-7 | 15-7 | 12-9 | 16-6 | 21-8 | 17-1 | 20-9 | 31-8 17-1
5 15-1 | 19-6 | 28-1 | 14-6 | 13-4] 16-0 | 13-6 | 18-7 | 31-5 | 18-2 | 22-5 | 39-4 || 20-9
6 16-8 | 17-1 | 24-8 | 15-7 | 14.0] 14-8 |] 13-1] 14-8 | 19-4] 16-3 | 26-0 | 39-7 || 19.4
7 17-1 | 10-5 | 16-6 | 12-9 | 11-3 | 15-1 | 12-2] 10-8 | 17-2 | 15-3 | 23-0 | 35-6 || 16-5
8 16:5 9-7 | 12.6 9-3 9-1 | 13-9 | 10:5 7-1 | 14:5 | 13-9 | 19-9 | 21-6 | 13-2
9 15-5 | 13-7 | 11-1 6-6 7-8 | 11-9 | 10-4 | 18-3 | 11-2 | 12-2 | 16-1 | 21-9 || 13-1
10 24-2 | 14:3 | 14-2 | 11-1 7-9 | 10-9 9-8 | 13-5 | 16-0 | 10-5 | 13-4] 18-4] 13-7
11 26:7 | 19-3 | 14:0 | 13-9 | 11-5] 11-7 9-2 | 23-5 | 19-6 | 17-8 | 13-3 | 18-4 16-6
VARIATIONS OF MAGNETIC Dir.
TABLE XLIV.—Variations of Magnetic Dip, with reference to the Moon’s Age, Declination, and
Distance from the Earth, as deduced from Tables XIX. and XXXII.
Variations Variations|| After | Variations| After | Variations|| Before | Variations| Before | Variations
of ; of Moon of Moon of and of and of
Magnetic . | Magnetic |/farthest| Magnetic |farthest| Magnetic || after | Magnetic | after | Magnetic
Dip. Dip. North. Dip. North. Dip. Perigee.| Dip. |Apogee.| Dip.
/ : ; Da
0-215 0-144
0-219 0-228
0-219 0-402
0-313 0-246
0-175
0-413
0-260
0-229
0-451 0-128
0-189 0-263 0-104
0-091 0-234 0-091
0-103 0-162 0-036
0-110 0-209 0-000
0-092 0-056
0-104
i Day. f
0-114 14 0-056
0-110 0-010
0-068 0-032
0-178 0-300
0-139 0-594
0-265 0-267
0-318 0-187
0-191
bes]
S
4
is]
2
A
NOUR WHE PRE NWWhADAYT
a
0-106
0-270
0-087
0-100
0-192
0-076
0-171
0-059
0-154
0-267
0-166
0-069
0.296
0-215
0-192
0-287
0-166
0-235
0-160
0-287
0-231
0-069
0-000
0-100
0-445
0-567
0-288
0-167
0-199
0-188
OCOOnNounrhwnwor ©
TOM HPwWWwN KH De nwwerans
VARIATIONS OF MAGNETIC Dip, 1845.
25
TABLE XLV.—Diurnal Variations of the Magnetic Dip in 1845, as deduced from Tables XXIII.
and XXXVI.
March.
MAG.
AND MET. OBS.
1845 anp 1846.
26 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XLVI.—Variations of Magnetic Dip, with reference to the Moon’s Hour-Angle, for 1845,
as deduced from Tables XX VI. and XXXIX.
LUNATIONS. LUNATIONS. LUNATIONS.
Summer. | Winter. Year. Summer. | Winter. Year. Summer. | Winter.
s ’
0-146 | 0-218 0-292 | 0.234 | 0.248 0-160 | 0-052
0-081 | 0-086 0-421 | 0-203 | 0-292 0-297 | 0-035
0-066 | 0-000 0-195 | 0-157 | 0-179 0-282 | 0-094
0-000 | 0-023 0-118 | 0-128 | 0-111 | 0-263 | 0-118
0-119 | 0-212 : 0-068 | 0-113 | 0-081 | 0-310 | 0-181
0-115 | 0-195 0-115 | 0-157 | 0-126 0-276 | 0-108
0-159 | 0-173 0-089 | 0-073 | 0-068 0-289 | 0-166
0-228 | 0-130 0-136 | 0-118 | 0-115 | 0-200 | 0-217
P | 0-202 | 0-161
SIO wre OF
TABLE XLVII.—Variations of the Total Magnetic Force, with reference to the Moon’s Age,
Declination, and Distance from the Earth, as deduced from Tables XIX. and XXXII.
Variations Variations|| After | Variations} After | Variations| Before | Variations| Before
Moon of Moon of and
farthest} Total farthest} Total p after
North.| Force. North.| Force. || Perigee. . |Apogee.
D 0-00 Day. 0-00
0176 0182
0112 0148
0138 0174
0000 0225
0068 0148
0114 0177
0138 0137
0114 0196
0144 0173
0149 0096
0096
0167
0149
0156
-]
5
es
Day.
OOTIAHMARwWNWH Og
NTIOURWNOe De wwh Onn
NOB WNE PRE NWOWA OD
VARIATIONS OF ToTaAL MAGNETIC ForcE, 1845. 27
TABLE XLVIII.—Diurnal Variations of the Total Magnetic Force in 1845, as deduced from
Tables XXIII. and XXXVI.
FPCoUOoOanNoaurrhwnre ©
—
TABLE XLIX.—Variations of the Total Magnetic Force with reference to the Moon’s Hour-Angle
for 1845, as deduced from Tables XX VI. and XX XIX.
LUNATIONS. | LUNATIONS. LUNATIONS.
=]
CF
®
Summer. | Winter. | Summer. | Winter. "|| Summer. | Winter.
0:00 0:00 . || 000 0:00 ° 0:00 0:00
0062 0053 | 0032 0016 0065 0098
0081 0076 0000 0008 0031 0095
0076 0088 0046 0012 0023 0089
0087 0065 0060 0064 0023 0061
0073 0010 | 0061 0084. 0000 0041
0069 0000 | 0080 0079 0025 0030
0061 0016 | 0081 0095 0045 0031
0044 0025 0077 0090 0047 0010
0045 0025
h.
0
1
2°
3
4
5
6
7
28
TABLE L.—Ranges for each Civil Day of the Magnetic Declination, and of the Horizontal and Ver-
tical Components of Magnetic Force, as deduced from all the Observations (Hourly, Term-Day,
RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
or Extra) made in 1845.
Civil || Decli- | Hor. | Vert.
Day. || nation.| Comp. | Comp.
v 0:0 0:0
JANUARY.
al 16:11 | 0322 | 0044
2 10°65 | 0151 | 0024
3 3°81 | 0081 | 0009
4 4:55 | 0073 | 0016
5 ach bd on
6 2°62 | 0095 | 0018
if 7:73 | 0225 | 0029
8 5:35 | 0088 | 0015
9 64:96 | 2622 | 0570
10 32:09 | 2321 | 0133
11 9°86 | 0193 | 0043
12 oat ee Sai
13 10°21 | 0295 | 0041
14 10°56 | 0263 | 0037
15 16°28 | 0449 | 0033
16 5°95 | 0126 | 0033
17 11:53 | 0273 | 0027
18 6:92 | 0218 | 0014
19 es ate aa
20 42:00 | 1715 | 0479
21 21:50 | 0227 | 0049
22 20:96 | 0819 | 0036
23 20:40 | 0493 | 0066
24 21°38 | 0813 | 0181
25 30°14 | 0785 | 0121
26 par ABS ate
27 18°34 | 0479 | 0092
28 26°70 | 0664 | 0135
29 29:95 | 0994 | 0193
30 24:67 | 0532 | 0065
31 5°58 | 0231 | 0043
FEBRUARY.
1 9:55 | 0228 | 0024
3 7-73 | 0183 | 0015
4 11:70 | 0164 | 0027
5 16°35 | 0315 | 0224
6 21:69 | 0370 | 0036
Ul 13°11 | 0200 | 0035
8 5:69 | 0136 | 0021
10 13°33 | 0217 | 0035
Wit 10-15 | 0189 | 0028
12 6:05 | 0241 | 0023
13 8°36 | 0325 | 0049
14 5:00 | 0127 | 0016
15 3°26 | 0105 | 0012
16 cbr ote on
17 10:73 | 0214 | 0089
18 5:54 | 0118 | 0010
19 5°67 | 0167 | 0017
20 31°51 | 0413 | 0055
21 26°84 | 0360 | 0103
22 20°00 | 0452 | 0127
23 ele 3a nos
24 35:10 | 0734 | 0184
25 24:13 | 0805 | 0180
26 21:72 | 0526 | 0204
27 32°12 | 0364 | 0081
28 22:00 | 0269 | 0102
29
30
81
Decli-
nation.
Hor.
Comp.
Vert.
Comp.
0-0
Decli-
nation.| Comp. | Comp.
,
Hor.
0:0
May.
0602
0252
0358
0409
0400
0448
0412
0447
0405
0339
0427
0469
0543
0799
0609
0885
0475
0441
Vert.
00
Decli-
nation.
Hor.
Comp.
0:0
JULY.
0435
0472
0354
0358
0323
0269
0582
0368
0421
0451
0398
0477
0361
0311
0377
0364
0392
0493
0434
0462
0552
0788
0344
0389
0337
0329
0419
1142
0396
0745
0448
0445
0340
0508
0427
0370
0353
0374
0392
0825
0521
0575
0503
0519
0475
0402
0337
0360
0444
0308
0374
1145
0974
AUGUST.
Vert.
Comp.
0-0
0107
0040
0043
0032
0042
0081
0098
0066
0061
0036
0046
0027
0024
0041
0027
0025
0038
0029
0049
0028
0097
0239
0030
0050
0029
0044
0046
0173
0122
0109
0064
0052
0050
0108
0107
0042
0020
0040
0026
0104
0044
0132
0026
0024
0026
0033
0042
0066
0094
0025 ||
0034
0288
0280
Decli-
nation.
Hor. Vert.
‘ 0-0 0-0
SEPTEMBER.
0476
0763
0487
0889
0407
0416
0540
0468
0351
0347
0399
0423
0319
0319
0682
1182
0419
0545
0308
0364
0496
1002
0368
0668
0266
0256
OcTOBER.
0281
0328
0309
0336
0445
0312
0316
1650
0693
0308
0265
0207
0209
0311
Comp. | Comp.
Decli- | Hor. | Vert,
nation.| Comp. | Comp
4 0-0
NovEMBER,
19-92 | 0561 | 0]
0225
0248
0417
0200
0358
0161
12°56
13°46 0!
34:39
4:87 06
16°45 t
718 i
0175
0210
0171
0153
0154
0161
18°24
9°87
real
4:15
5:06
4:63
0692
0351
0217
0141
0188
0368
30°61
21°85
12°30
6°82
6:33
12:94
0381
0210
0316
0139
0571
0392
15°14
844
7°36
9:91
10°19
16:11
DECEMBER.
5-18 | 0148 | 0023
12°13} 0249 | @
125°61| 4090 | 054
2512 | Aen
10°51 | 0262
8-80 | 0221
0146
0123
0150
0130
0231
0514
6°86
3:79
6:95
5°28
6-67
33°62
0508
0363
0230
0300
0101
0115
30°62
18°64
8°61
15°59
3°50
8:21
5-49 | 0143
6:73
754
4:51
5°01
6°39
4:07
16°99
12°76
Maenetic DECLINATION, 1846. 29
TABLE LI.—Mean Westerly Declination for each Civil Week-Day and Week in 1846.
ew Jan Feb. March. | April May. June July. Aug. Sept. Oct. Nov Dec
ay.
25° 25° 25° 25° 25° 25° 25° 25° 25° 25° 25° 25°
1 8-94 | [8-47] | [7-17] | 7-40 | 6-60 | 7-39 | 6-37 | 3-05 | 5-24 | 3-09 | [4-38] |] 3.54
2 8:92 | 9-20 | 7-62 | 7-95 | 5-32 | 6-42 | 7.33 | [4-36] | 4:80 | 3-65 | 4.35 | 4.08
3 8-77 | 8-58 | 7-04 | 7-65 | [6-37]] 7:04 | 9.02 | 404 | 495 | 7-44 | 5-65 | 3.24
Mes-72) |. 8-55 |, 704 || G24 | 7-63 | 6-57 | 7-30'| 435 | 9:18 | [4-42] | 3-43 | 5.14
5 8-62 | 8-50 | 7-65 | [6-93] | 7-00 | 6-98 | [6-95] | 4:50 | 8-07 | 460 | 4.14 | 3.55
6 9:05 | 8-58 | 7-25 | 6-52 | 5-52 | 5-83 6-68 | 5-02 | [6-72]| 3-73 | 4.38 | [3-19]
7 8-01 9-61 7:02 | 6.36 | 4:88 | [6-10] |} 6.08 | 8-51 | 4:67 | 4-00 1-58 | 3-06
8 9-62 | [8-86] | [7-15] | 6-89 | 5-07 | 6-25 | 5.32 | 7-32 | 811 | 5-25 | [3.42] | 3.07
9 8-96 | 10-17 | 665 | 5-71 | 5-03 | 4:93 | 5.57 | [6-35] ] 534 | 5-59 | 3.64 1-09
10 8-69 | 7-78 | 7-55 | 5-89 | -[5:34]| 604 | 646 | 669 | 556 | 8-47 | 3.93 2.74
11 | [9-14] | 8-53 | 6-81 | 8-30 | 6-43 | 5-61 6-46 | 6-19 | 6-67 | [5-60] | 2.85 | 4-10
12 | 10-06 | 8-96 | 5.98 | [6-52]| 4-70 | 5-57 | [6.05] | 4:39 | 640 | 5-62 | 3.81 3-17
13 8-59 | 8-42 | 11-65 | 8-57 | 5:93 | 6-58 | 6-71 | 7-64 | [6-35] | 4:17 | 3-76 | [3-41]
14 8-95 | 9-67 | 8-78 | 4-52 | 5-20 | [5-92]| 4.07 | 6-36 | 6-76 | 4:50 | 3.62 | 3.58
15 9-77 | [7-86] | [8-47] | 6-16 | 6-53 | 2.98 | 7.02 | 5-19 | 7-51 3-98 | [4-19] | 3-52
16 9:10 | 6-64 | 805 | 6-76 | 5-41 7-41 | 4.99 | [6-01] | 5.22 | 422 | 3-12 | 3.38
17 9:39 | 7-08 | 8-62 | 7-70 | [5-96] | 7-37 | 6-01 7-60 | 6-21 3-71 5-01 3-30
18 || [9-34] | 6-37 | 7:74 | 6.27 | 5-81 5-15 | 6.29 | 5-07 | 5.51 | [4:25] | 5.82 | 3.28
19 9-54 8-04 7-45 | [6-60] | 7-57 7-61 | [5-58] | 4:23 5-71 4:36 3-48 9.83
20 8-53 | 7-06 | 7:36 | 5-59 | 5-22 | 6-40 | 4.37 | 4-61 | [4.64] | 5-22 | 4.99 | [3-11]
21 9-72 | 7-52 | 6-64 | 6-56 | 6-24 | [6-39]| 5.84 | 5-77 | 2.60 | 3:99 | 282 | 2.83
22 9-11 | [7-60] | [6-99] | 6-69 | 5-77 | 865 | 6.01 8-74 | 1-29 | 3-80 | [3.28] | 2-66
23 8.22 | 682 | 6:80 | 6:05 | 7-75 | 495 | 7-97 | [6-03]| 6.54 | 4:64 | 3.08 | 3-77
24 || 10-40 | 7-20 | 7-51 | 6-57 | [6-37] | 5-58 | 5.25 | 5.31 3:04 || 2:98 | B67 |) stor
25 || [9-01] | 8-96 | 6-20 | 7-37 | 6:07 | 5-88 | 3.68 | 5-82 | 4.90 | [403] ] 3.35 | 3.14
26 8-88 | 7-52 | 7-99 | [6-60] | 6-81 5-58 | [5-98] | 5-93 | 5.56 | 4-49 1-62 | 2-80
27 8-11 | 6-87 | 645 | 6:44 | 5-61 | 4-74 | 6.39 | 4-59 | [4.02]/ 415 | 5.34 | [2.53]
28 a8) i) 6-84 | 7e28en 619" | 5-82. || [5:70] | 5:40.) 5:58 | 3:95.| 4:15, | 3:17 1-67
29 8-32 [7-21] | 6-95 | 5-91 Site (oot 5-02 | 3:37 | 4:37 | [3-48] | 2-08
30 7:79 TOmeeo-7 e676. |) G30" | 5:15) >) [4597] | 3-08 | 4-74 | 3-12° | 2-96
31 8-36 7-11 [6-56] 5-09 4-60 3-72 1-97
TABLE LII.—Mean Variations of Westerly Declination, after eliminating the Secular Change, with
reference to the Moon’s Age and Declination, for 1846.
Variations
of West
Declina-
tion.
0-93
1:38
0-78
0-83
0-71
0:72
0-66
0-66
0-78
0-71
0-93
0.44
0-54
0-93
0-95
Moon’s
Age.
D
CONAN WOE Of
MAG. AND MET. oBs. 1845 anp 1846.
Variations
of West
Declina-
tion.
1-05
0-66
After
Moon
farthest
North.
D
OMONANAWHWH OF
Variations
of West
Declina-
tion.
1-19
0-78
0-70
0-74
0-28
0-36
0-78
0-38
0-86
0-51
0-46
0-69
0-63
0-25
After
Moon
farthest
Variations
of West
Declina-
tion.
0-15
0-23
0-27
0-00
0-39
0-84
0-39
30 RESULTS OF MAKERSTOUN OBSERVATIONS, 1846.
TABLE LIII.—Diurnal Range of Magnetic Declination for each Civil Day, as deduced from
the 12 Daily Observations, with the Means for each Week in 1846.
ei Jan. Feb. | March. | April. May. June. July. | Aug. Sept. Oct. Nov. Dee.
fo I
1 8:95 | [9-42]|[11-41]) 13-45 9-86 | 10-20 | 13-99 | 12-99 | 13-50 | 22.38 | [11-16]| 13-35
2 3:09 | 12-06 | 10-35 | 12-31 | 12-03 | 14-45 | 25-19 | [14-24]] 12-23 | 27-85 | 18-10 8-08
3 3:47 5°65 9-11 | 15-86 | [14-24]| 12-17 | 10-20 9-67 | 10-55 8-86 | 10-43 7-34
4 [6-74]| 8-63 | 15-57 | 12-91 | 29-73 | 11-05 | 13-89 | 12-93 | 24-14 |[16-76]| 5-34 | 11.48
5 5-60 4-37 8-09 |[18-23]| 12-41 | 12-65 |[16-19]| 12-84 | 23-58 7:98 | 10-37 4-38
6
7
8
9
7-01 4-65 7-21 | 32.41 8-78 | 12-79 | 18-86 | 21-03 | [15-85]| 16-42 5:37 | [9-44]
12.34 9-38 7-62 | 20-08 | 14-54 |[13-77]] 15-44 | 23-79 7-78 | 17-09 | 23-50 3-40
8-01 [6-45]} [7-69]| 15-80 | 13-37 | 17-81 | 13-54 | 13-44 | 17-78 | 31-31 |[11-57]| 4-60
5-61 8-57 6-82 | 13-19 | 16-20 | 14-60 | 12-75 | [16-11]} 11-29 | 13-63 8-88 | 25-43
10 3:85 7:47 7-33 | 11-09 | [16-36]| 13-75 | 11-98 | 12-64 | 10-95 | 14-40 6-58 | 14-20
11 || [8-25]| 4-26 9-06 | 14-43 | 11-86 | 13-26 | 22-48 | 11-98 | 36-61 | [16-93]| 14-70 6-12
12 || 13-10 | 12-42 | 15-09 | [17-20]| 28-51 | 13-24 | [14-65]| 13-81 | 11-85 | 18-43 6-39 8-36
13 | 7-43 3-93 | 22-81 | 17-91 | 13-67 | 21-47 | 15-57 9-22 | [16-50]| 15-47 9-44 | [6-88]
14 11-50 | 10-25 | 21-57 | 28-64 | 11-13 | [14-89]] 13-96 | 17-21 | 14-97 8-34 | 10-70 3-90
15 | 4-99 | [12-91]|[19-86]| 17-93 | 12-57 | 18-88 | 11-17 | 17-96 | 13-08 6-60 | [9-04]; 5:18
16 | 8-69 | 27-17 | 20-51 | 34-78 | 10-33 9-84 | 14-26 |[14-03]) 11-53 8-38 7-05 3-50
17 19-29 | 10-54 | 20-40 | 15-89 |[11-65]| 12-66 8-21 | 15-84 | 13-34 9-48 | 14-04 4-92
[8-47}| 13-18 | 18-80 | 13-29 | 11-61 | 10-62 | 17-32 | 13-40 | 14-72 | [9-37]] 6-64 9-76
19 | 7-94 8-10 | 10-10 | [17-04]| 12-94 7-31 | [11-04]] 10-57 | 19-79 8:73 5-10 3-71
20 | 3-95 9-99 | 14-62 | 12-96 | 11-34 | 17-37 9-23 | 14-13 | (25-36]| 12-67 | 14-39 | [6-75]
21 || 93-95 8-19 | 12-07 | 11-92 | 16-46 | [12-38]| 7-34 | 14-54 | 31-82 | 10-37 7-16 4-66
22 6-66 | [7-52]|[12-08]| 13-39 | 17-90 | 15-08 9-91 | 16-18 | 56-45 | 25-06 | [7-11]| 5-25
23 4-60 3-61 | 10-39 | 13-80 | 17-32 | 12-11 | 13-79 | [15-36]| 16-05 9-76 4-36 | 12-21
24 | 36-83 4-24 | 12-72 | 13-13 | [15-25]| 11-79 | 15-30 | 15-87 | 20-01 | 17-25 6-87 | 12.27
25 [12-46]| 11-00 | 12-60 | 10-22 , 11-51 | 11-36 | 18-26 | 16-20 | 10-74 |[13-56]| 4-80 9-12
26 5-20 | 9-29 | 21-45 | [11-78]| 15-79 | 13-31 | [15-74]| 15-24 8-82 | 10-48 | 25-96 8-51
27 11-48 | 14-76 | 15-21 | 12-08 | 12-54 | 14-59 | 13-16 | 17-30 |[11-78]| 9-78 | 12-18 | [9-13]
28 | 10-01 9:40 | 14-14 8-86 | 13-36 |[14-10]} 14-16 | 20-02 | 13-64 9:02 | 12-32 | 10-87
29 10-03 [16-13]| 12-60 | 16-79 | 13-65 | 19-79 | 16-54 8-14 9-02 |[13-17]| 9-52
30 13-46 17-73 | 12-63 | 19-55 | 17-68 | 21-09 |[15-22]| 9-32 | 12-07 7:14 4-49
31 6-71 14-80 [14-42] 15-92 | 11-73 | 12-01 5-62
TABLE LIV.—Means of the Diurnal Ranges of Magnetic Declination, with reference to the Moon’s
Age and Declination, for 1846.
After After
Mean Mean Moon Moon
Range. : farthest farthest
| North.
4 : , D
13-22 12-83
13-75 12-90
14-16 17-93
16-66 12-22
13-34 12-95
16-31 12-44
15:74 12-58
13-05 12.49
11-55 14.42
11-42 12-37
10-14
10-43
12-52
CHONANKRWNHH OF
MAGNETIC DECLINATION, 1846. 31
TABLE LV.—Means of Westerly Declination at the Observation Hours, for each Month in 1846.
Mean Time.
Feb. | March.
Gott. | Mak.
onmnnr go Rr NON = ©
—_
32
RESULTS OF MAKERSTOUN OBSERVATIONS, 1846.
TABLE LVII.—Mean Values of the Variations of the Horizontal Component of Magnetic Force, the
Civil
Day.
OOMBNDUH Wwe
whole Horizontal Component being Unity, for each Civil Week-Day and Week in 1846.
Jan.
Feb.
0-00
[6212]
6116
6099
6109
6234
6224
6323
[6205]
5943
6090
6414
6556
6375
7143
[6438]
6184
6296
6076
6252
6554
6580
[6505]
6755
6700
6191
5990
6103
6271
March.
0:00
[6222]
6103
6253
6611
6634
6454
6704
[6670]
6350
6954
6925
6638
6243
5395
[5979]
6168
April.
0.00
6484
6924
6625
6455
[6183]
5547
5545
6001
5988
6726
5928
[6251]
6452
6386
6029
6811
5839
5673
[6295]
6267
6075
7128
6453
6708
6511
[6571]
6468
6298
6987
6900
May. June.
0:00 0:00
6743 6092
6944 5671
[6504] | 6007
5849 6011
6211 6158
6378 6686
6820 [6325]
7174 6054
6698 6867
[6667] 6172
6764 5903
5950 6926
6597 7376
6640 [6713]
6149 7214
6274 6137
[6877]| 6720
7504 6365
7789 6287
6904 5818
6953 [6620]
5666 7076
6821 7014
[6632]| 7160
7012 7034
6666 6867
6674 7156
6797 | [7038]
6931 7060
7707 6997
[6534]
July.
0-00
7116
6854
6629
6360
[6581]
6208
6954
6484
6434
6908
7148
[6846]
7050
6491
7048
6435
6711
7305
[7001]
7028
7141
7384
7097
7799
7642
[7285]
7070
6439
7664
6604
7356
Aug.
0-00
6248
[6569]
6576
6090
6541
7265
5767
6927
[6461]
5464
6265
7078
6106
5801
6264
(6177)
6089
6419
6384
6423
6355
6538
[63904
6522
6361
6144
5904
6954
7348
[6686]
6263
Sept. Oct.
0-00 0:00
6791 6449
6859 5480
6637 6594
5592 | [6174]
7655 6397
[6341]| 6206
5650 5916
6626 6495
5888 5376
5991 5238
7015 [5950]
5746 5922
[6006] | 6108
6142 6563
5085 7038
6058 6603
6388 7033
6469 (6891]
6786 6929
[6095] | 6763
6965 6981
4294 5845
5667 6521
6236 6941
6274 [6702]
5996 6972
[6294]| 6725
6211 7208
6508 6953
6540 6593
rallitl
Nov.
0:00
[6800]
6317
6771
7056
7021
7142
6361
[6936]
6721
7121
7249
7349
7581
7150
[7459]
7454
9194
6026
6768
7572
7018
[7287]
7330
7534
7499
8279
6698
6631
[7280]
7190
TABLE LVIII.—Mean Variations of the Horizontal Component of Magnetic Force, after eliminating
the Secular Change, with reference to the Moon’s Age and Declination, for 1846.
Variations
of Hori-
zontal
Component.
0-00
0352
0281
0067
0311
0260
0137
0311
0000
0279
0455
0232
0368
0348
0736
0552
Moon’s
Age.
WOWDNAWHAAPWMWE Of
Variations
of Hori-
zontal
Component.
0-00
0329
0478
0229
0388
After
Moon
farthest
North.
D
CHOTA ANAPWNH OF
Variations
of Hori-
zontal
Component.
0:00
0204
0249
0344
0217
0386
0347
0349
0293
0210
0412
0003
0335
0000
0150
After
Moon
farthest
North.
Variations
of Hori-
zontal
Component.
MAGNETIC DECLINATION, 1846. 33
TABLE LIX.—Diurnal Range of the Horizontal Component of Magnetic Force for each Civil Day,
as deduced from the 12 Daily Observations, with the Means for each Week in 1846.
March.
0:0
[0248]
0289
0239
0347
0215
0200
0147
[0177]
0208
CONOUPR WH
0084
0207
0250
0529
0455
[0444]
0223
0435
0770
0377
0389
0266
[0367]
0382
0398
0390
0563
0437
0498
[0461]
0466
0387
TABLE LX.-——Means of the Diurnal Ranges of the Horizontal Component of Magnetic Force,
with reference to the Moon’s Age and Declination, for 1846.
After After
Moon’s Mean Moon’s Mean Moon Mean Moon Mean
Age. Range. Age. Range. ||farthest} Range. |farthest| Range.
North. North.
Day- 0:00 Day. 0:00 Day. 0:00 Day. 0-00
15 5892 0 4419 0 3982 14 5249
16 4915 1 4277 1 4301 15 5015
17 5922 2 5674 2 3651 16 3915
18 6215 3 3801 3 3999 17 3576
19 4459 4 3951 4 4091 18 4185
20 5362 5 4292 5 5401 19 4645
21 5567 6 4463 6 4052 20 6172
22 4509 @ 4212 7h 3938 21 5153
23 4495 8 5359 8 4602 22, 4487
24 3967 9 4884 9 4753 23 4520
25 4333 10 5617 10 5975 24 4427
26 4475 11 4222 11 5777 25 4057
27 3927 12 4186 12 5004 26 5478
28 5307 13 3457 13 5919 Qi 4344
29 4607 14 3911
MAG. AND MET. oBs. 1845 ann 1846. I
34 RESULTS OF MAKERSTOUN OBSERVATIONS, 1846.
TABLE LXI.—Means of the Scale Readings of the Bifilar Magnetometer, corrected for Temperature,
at the Observation Hours, for each Month in 1846.
Mean Time.
ae March. . | June. | July. | Aug. Sept. Oct. Nov.
Gott. | Mak.
h. h. Se. Div. Sc. Div. | Se. Div. | Se. Div. | Se. Div.
18 17 540-90 543-94| 552-11) 555-58} 559-39
20 19 535-67 536-75| 546-21| 553-46) 558-43 |
21 530-90 528-20| 537-56) 545-74) 555-66)
22 532-04 531-94) 536-28) 543-22) 552.56)
23 537-17 534-15| 537-48| 544-82) 553-94 |
542-23 542-78) 540-06] 547-45) 554.58
548-67 550-50] 546-84| 550-60) 557-17
557-77 559-57 | 554-02| 554-28 | 558-95
564-93 560-99! 552-21) 559-36) 560-30 |
566-62 553-76) 553-74| 560-94 | 560-70
564-47 552-96) 551-77) 558-50) 560-53 |
555-41 542-90) 551-08) 553-95 556-96 |
TABLE LXII.—Diurnal Variations of the Horizontal Component of Magnetic Force for each
Month in 1846.
|
Feb, | March.| April, | May.
VERTICAL COMPONENT OF MAGNETIC Force, 1846.
35
TABLE LXIII.—Mean Values of the Variations of the Vertical Component of Magnetic Force, the
whole Vertical Component being unity, for each Civil Week-Day and Week in 1846.
March.
0:00
[3657]
3655
3683
3579
3624
3705
3686
[3672]
3774
3671
3572
3559
3928
3788
[3740]
3602
3793
April.
0:00
3451
3364
3373
3713
[3545]
3603
3593
3625
3605
3696
3312
[3498]
3487
3413
3474
3699
3322
3496
[3517]
3457
3516
May.
0-00
3448
3433
[3494]
3594
3396
3592
3749
3611
June. July. Aug. Sept. Oct.
0:00 0-00 0:00 0:00 0:00
3637 | ceeres 3677 3534 3310
3477 | eee eee [3710] | 3453 3360
3825 3927 3659 3422 2980
4120 3497 3796 3489 [3261]
3952 [3778] 3731 4122 3349
3978 3956 3764 | [3799] | 3331
[4054] | 3827 3702 3638 3237
4079 3681 3740 4086 3394
4062 3850 |[3818] | 4038 3502
4131 3677 3880 3988 3431
4112 4285 3775 4165 [3437]
4040 | [3921] | 4046 3648 3464
3959 4124 4084 | [3758] | 3482
{4059] | 3781 3442 3625 3351
4119 3807 3949 3543 3165
4090 3752 [3724] 3582 3069
4032 3944 3463 3516 3010
4146 4102 3640 3580 | [3148]
3885 | [3839] 3767 3817 3244
3900 3745 3655 | [3424] | 3172
[3957] | 3729 3646 3631 3227
3899 3763 3381 3003 3420
4008 3936 [3584] 2996 3073
3903 3915 3651 3288 3079
3890 3680 3612 3397 | [3124]
3691 [3855] 3560 3526 3134
3784 3751 3468 [3383] | 3120
[3796] 3588 3537 3408 2919
3812 4258 3497 3353 2906
3801 3754 [3501] 3328 2979
[2651]
2643
2555
2809
2662
2688
2711
[2580]
2633
2392
2396
TABLE LXIV.—Mean Variations of the Vertical Component of Magnetic Force, after eliminating
the Secular Change, with reference to the Moon’s Age and Declination, for 1846.
Variations
of Ver-
tical Com-
ponent.
0-00
0080
0116
0088
0119
0134
0182
0155
0087
0117
0084
0019
0034
0018
0066
0087
Variations
of Ver-
tical Com-
ponent.
0-00
0028
0069
0006
0016
0004
0006
0059
0000
0044
0064
0040
0035
0084
0036
After
Moon
farthest
North.
D
OHONAANAWNWH OF
Variations
of Ver-
tical Com-
ponent.
0:00
0066
0086
0087
0144
0109
0071
0014
0043
0082
0169
0060
0073
0081
0071
Moon
North.
After | Variations
of Ver-
farthest | tical Com-
ponent.
36 RESULTS OF MAKERSTOUN OBSERVATIONS, 1846.
TABLE LXV.—Diurnal Range of the Vertical Component of Magnetic Force for each Civil Day,
as deduced from the 12 Daily Observations, with the Means for each Week in 1846.
Dar Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.
0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0-00 0:00 0-00 9-00
1 0092 [0286] [03 19] 0422 0219 0597 | eves 1006 0611 0826 [0442 0270
2 0136 0395 0211 0248 0756 2200 | «+++. [0697] 0145 | 1436 0990 0237
3 0109 0222 0285 0459 [1086] 0799 1649 0703 0400 1529 0405 0114
4 [0157] 0225 0226 0572 2131 0391 2368 0447 1422 [1 109] 0198 0886
5 0157 0133 0281 [1240] 1931 0522 [1505] 0301 6065 0464 0387 0152
6 0112 0169 0212 4404 1157 0714 1463 0899 [1876] 0501 0144 [0296]
Of 0339 0596 0220 0769 0786 [0805] 0871 2213 0195 1900 0833 0093
8 0265 [0327] [0208] 0988 0824 0172 1172 2063 2099 8852 [0308] 0045
9 0295 0708 0276 0216 1127 1949 0324 [1514] 1074 1014 0128 0484
10 0115 0267 0148 0896 [1094] 1083 0522 1711 0907 4828 0215 0598
jl [0327] 0092 0110 1284 0308 0278 2094 0629 5138 [2756] 0144 0507
12 0479 0253 0206 [0889] 2669 0328 [1080] 1571 1899 0893 0157 0249
13 0138 0162 | 2472 2039 0848 0548 1942 1817 | [1812]| 0692 | 0230 | [0315]
14 0668 | 0180 1768 0381 0957 | [0628]| 0448 3345 1755 | 0260 | 0382 | 0233
15 0152 | [0330]| [1259]| 0517 | 0649 1343 1149 1919 0927 | 0274 | [1238]|] 0189
0763 1469 2473 | 0330 0885 0551 | [1743] | 0247 | 0688 | 0172 0117
17 0612 | 0258 1067 | 0941 | [0743]| 0387 0620 1842 0833 0167 5699 | 0113
18 [0216] | 0363 0572 0285 0437 0519 1134 | 0704 0179 | [0489]| 0787 | 0231
19 0186 | 0157 0306 | [0891]; 1292 0512 | [0701]| 0930 1121 0828 | 0226 | 0179
20 0062 | 0088 | 0254 | 0661 0796 0370 0307 | 0386 | [2041]| 0682 | 0426 | [0379]
21 0128 0191 0376 0214 | 0758 | [0499]] 0542 | 0574 1555 0293 0245 0155
22 0090 | [0243]| [0264]| 0770 | 0366 0464 1051 1842 | 6862 1133 | [0258]| 0142
0087 0253 0191 0619 0597 0817 | [0805]|} 1698 | 0347 | 0201 1455
24 0707 0133 0217 0332 | [0612]| 0530 1148 | 0760 | 0475 0336 | 0170 | 0779
25 [0283]| 0801 0178 0865 1027 0232 1105 | 0890 | 0401 | [0412]|) 0280 0405
26 0152 | 0525 0482 | [0369 0481 0253 | [1244]| 0379 | 0484 | 0108 | 7017 | 0475
27 0121 0255 0400 0452 | 0422 0586 | 0801 1136 | [0408]| 0365 | 0798 | [0383]
28 0514 0412 | 0437 0165 0638 | [0502]| 0586 1831 0431 0183 0663 0275
29 0502 [0392]| 0211 0302 0652 3007 1122 | 0429 | 0260 | [1644]| 0174
30 0186 ‘| 0442 | 0320 0955 0786 0412 | [0855]| 0230 | 0504 | 0879 | 0190
31 0185 0169 [0915] 1316 | 0287 0296 0225
TABLE LXVI.—Means of the Diurnal Ranges of the Vertical Component of Magnetic Force,
with reference to the Moon’s Age and Declination for 1846.
After After
s Mean Moon Mean Moon
Age. | Range. Age. | Range. || farthest! Range. | farthest
North. North.
Day. 0-00 Day. 0-00 D 0-00 Day. 0-00
OOIANAwWMW Hog
VERTICAL COMPONENT OF MAGNETIC Force, 1846.
TABLE LXVII.—Means of the Micrometer Readings of the Balance Magnetometer corrected
‘ for Temperature, at the Observation Hours, for each Month in 1846.
Mean Time.
March. | April.
Gott. | Mak.
h. _||Mic. Div. | Mic. Diy. Mic. Diy. | Mic. Div.
17 361-5 | 333-1
19 365-2 | 344-8
21 369-0 | 354-3
22 366-7 | 355-0
23 364-4 | 356-0
366-0 | 352-7
371-8 | 356-7
392-1) 374-3
397-5 | 388-1
388-9 | 391-9
383-0 | 387-8
362-8 | 345-4
May.
Mice. Div.
336-9
353°5
355:3
353-2
351-2
351-9
356-7
384-4
397-2
397-5
394-9
364-1
Mic. Diy,
373-8
391-2
392-0
389-5
384-0
386-0
388-0
398-6
409-9
412-4
414-1
404-1
July.
Mice. Diy.
351-3
372.1
378.3
374.1
367-4
368-0
373.0
402-5
428.9
426-5
417-8
387-1
Aug.
335-9
356-6
372-0
370-5
364-3
365-1
371-0
396-7
414-5
416-6
408-5
349-5
Sept.
Mic. Div. | Mic. Div.
334-5
346-9
353-2
361-7
365-7
373-8
377-8
407-5
406-7
387-6
380-9
333-5
Mic. Div.
273-8
307-1
325-4
326-5
325-8
331-4
338-2
360-1
352-5
349-7
336-8
321-0
Mic. Div.
276-9
280-5
289-4
288-7
287-3
288-9
293-5
306-3
306-5
337-0
322-9
286-7
Mic. Div.
257-3
258-3
260-4
262-7
264-2
264-8
266-3
273-6
274-7
272:8
275-0
270-9
Mic. Div.
332-5
344-5
350-9
350-9
349-7
351-6
355-5
373-8
380-2
380-4
375+1
349-8
TABLE LXVIII.—Diurnal Variations of the Vertical Component of Magnetic Force, for each
Month in 1846.
MAG. AND MET. OBS, 1845 anp 1846.
38
RESULTS OF MAKERSTOUN OBSERVATIONS, 1846.
TABLE LXIX.—Variations of Magnetic Dip with reference to the Moon’s Age and Declination
for 1846, as deduced from Tables LVIII. and LXIV.
Variations Variations|} After | Variations| After
of Moon’s of Moon of Moon
Magnetic | Age. | Magnetic ||farthest| Magnetic | farthest
Dip. Dip. North. Dip. North.
iS]
S
omar aurnhwn ee OF
9
&
4
OANA oe Pw wo SB OF
Day.
14
15
16
17
18
19
20
21
22
23
24
25
26
27
—_ —
= ©
TABLE LXX.—Diurnal Variations of Magnetic Dip for each Month in 1846, as deduced from
Tables LXII. and LXVIII.
May. June.
VARIATIONS OF ToTAL MAGNETIC Force, 1846.
TABLE LX XI.—Variations of the Total Magnetic Force, with reference to the Moon’s Age and
Declination for 1846, as deduced from Tables LVIII. and LXIV.
Variations Variations|| After | Variations} After | Variations
of Moon’s of Moon of Moon
Total Age. Total farthest Total |farthest
Force. Force. North.| Force. | North.
0-00
0030
0082
0000
0025
0026
0019
0068
0014
0060
0046
0019 0010
0035 0056
0066 0029
0044 0035
0061
0°00 Day.
0036 14
0059 15
0069 16
0108
0094
0055
0005
0025
0051
0150
0:00
0079
0104
0057
0110
0118
0148
0142
0049
0105
0093
0012
0039
0023
0106
0106
is)
OmoWA AR WHY SK OG
_ -]
SOON Anh wW HN HY OG
—
(i (=)
—
_
_
bo
—
(a)
ts
TABLE LXXII.—Diurnal Variations of Total Magnetic Force for each Month in 1846, as
deduced from Tables LXII. and LXVIII.
Bae Jan. Feb, | March.| April. | May. | June. | July. | Aug. | Sept. | Oct. Nov. Dec. Year.
39
40
TABLE LXXIII.—Ranges for each Civil Day of the Magnetic Declination, and of the Horizontal and
Vertical Components of Magnetic Force, as obtained from all the Observations (Daily or Extra)
made in 1846.
RESULTS OF MAKERSTOUN OBSERVATIONS, 1846.
Decli-
nation.
f Civil || Decli- | Hor. | Vert.
Day. || nation.| Comp. | Comp.
‘ 00 0-0
JANUARY.
1 8:95 | 0124 | 0009
2 3:50 | 0115 | 0019
3 7-91 | 0181 | 0018
5 10°50 | 0139 | 0026
6 7-85 | 0167 | 0025
7 17-40 | 0269 | 0057
8 11°55 | 0281 | 0036
9 5:97 | 0182 | 0029
10 5:69 | 0171 | 0012
11 ce aiahe ee
12 || 13:10 | 0279 | 0048
13 7-43 | 0130 | 0014
14 11:50 | 0308 | 0067
15 4:99 | 0090 | 0015
16 8:69 | 0153 | 0015
17 =| 19-29 | 0228 | 0061
18 dno co Bo
19 7°94 | 0252 | 0019
20 3:95 | 0121 | 0006
21 5°95 | 0228 | 0013
22 6°66 | 0186 | 0009
23 4:60 | 0265 | 0012
24 51:65 | 0672 | 0100
25 000 gee me
26 5:20 | 0105 | 0015
27 ||11°48 | 0159 | 0012
28 10°01 | 0163 | 0051
29 10:03 | 0256 | 0050
30 13°46 | 0162 | 0019
31 671 | 0202 | 0018
FEBRUARY.
1 ans ae ae
2 12:06 | 0234 | 0039
3 5°65 | 0174 | 0022
4 8:63 | 0151 | 0022
5 4:37 | 0128 | 0013
6 4:65 | 0161 | 0017
7 9:38 | 0157 | 0060
9 8:57 | 0269 | 0071
10 7-47 | 0202 | 0027
11 4:96 | 0073 | 0009
12 12°42 | 0288 | 0025
13 3:93 | 0142 | 0016
14 10:25 | 0401 | 0018
16 || 35:69 | 0444 | 0089
17 10:54 | 0177 | 0026
18 13:18 | 0217 | 0086
19 8:10 | 0155 | 0016
20 9:99 | 0170 | 0014
21 8-19 | 0117 | 0019
22 380 oe $85
23 3:61 | 0069 | 0009
24 4:24 | 0096 | 0013
25 2241 | 0491 | 0083
26 9:29 | 0240 | 0064
27 14:76 | 0201 | 0025
28 9°40 | 0178 | 0041
29
30
31
Vert.
Comp.
0:0
0021
0028
0023
0028
0021
0022
0028
0015
0011
0021
0342
0240
0333
0344
0057
0031
0025
0038
0025
0022
0018
0048
0040
0044
0054
0017
0042
0025
0046 |
0057
0457
0210
0099
0022
0090
0128
0211
0076
0052
0426
0314
0028
0066
0021
0077
0019
0033
0086
0045
0016
0021
0032
Decli-
nation.
Hor.
Comp.
0-0
Vert.
Comp.
0:0
Decli-
nation.
Decli-
nation.
Hor. Vert.
Comp. | Comp.
f 0-0 00
SEPTEMBER.
13°50| 0381 | 0061
12:23) 0346 | 0014
10°55 | 0351 | 0040
29°50 | 0930 | 0165
43:02 | 1767 | 0622
0324
1015
0572
0402
1095
0698
7-78
24°76
11:29
12-72
58°41
11°85
0019
0210
0107
0091
0575
0190
0175
0093
0025
0083
0018
0112
0707
0663
0378
0431
0347
0364
14:97
13-08
11:53
13°34
14:72
32°81
0176
1178
0170
0047
0040
0048
0728
4995
0408
0587
0524
0466
40-10
121°52
16:05
20:01
10:74
8°82
0043
0043
0023
0647
0294
0271
19-48
8-14
15-08
OcTOBER.
22°38| 0405
29°96) 0400
8°86 | 0452
0083
0161
0153
0046
0050
0237
1062
0101
0483
0223
0232
0965
3197
0494
0591
7-98
16-42
44°57
0089
0069
0026
0027
0069
0017
0448
0397
0279
0227
0328
0300
0083
9068
0029
0136
0035
0034
0278
0246
0427
0791
0417
0560
0011
0036
0018
0026
0050
0030
0255
0310
0286
0282
0328
0297
Decli-
nation.
Hor. | Ver
Comp. omp
t 00 nf
NovEMBER.
009
00.
005
005
00
016
0263
0339
0229
0239
0250
0598
18:10
10°43
5°34
10°37
5:37
24:07
0235
0328
0207
0254
0239
0279
8°88
6°58
14:70
6°39
9-44
10°70
0169
1775
0433
0283
0271
0201
7:05
43°54
6°64
5°10
14:39
7:16
4:36
6°87
480
44-90
15°38
12°32
0204
0190
0175
1037
0362
0535
7-14 | 0282
DECEMBER.
13°35 2
TABLES OF RESULTS
FROM THE
METEOROLOGICAL OBSERVATIONS
MADE AT THE OBSERVATORY OF
GENERAL SIR T. M. BRISBANE, Barr.,
MAKERSTOUN.
1845 anp 1846.
MAG. AND Mer. ons. 1845 anp 1846,
42
TABLE I.—Daily and Weekly Means of the Temperature of the Air, as deduced from the readings —
Civil
Day.
oOo onan a fF Ww Nw =
— et
nN = «oS
Jan.
30-2
32-6
35-1
38-5
[36-3]
42-1
33-4
36-3
32.8
39-7
41-5
[37-3]
34-4
39-8
35-7
28.2
38-6
39-0
[35-6]
30-9
35-0
41-9
46-5
39-3
43-6
[34-5]
30-1
30-0
17-7
16-0
9-6
RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
Feb.
28-9
[27-4]
37-0
34-8
37-9
29-5
28-1
27-6
[30-0]
34-1
30-2
30-7
39-6
34-7
36-5
[35-3]
37-9
33-3
30-1
36-3
36°0
30-9
[33-5]
31-4
28-4
38-0
35-0
33-7
of the Dry Bulb Thermometer, for 1845.
March.
31-4
[32-3]
35-5
30-9
27-5
30-4
36-7
39-8
[34-5]
40-2
31-9
27-9
26-5
26-9
23-2
[28-4]
30-6
34-1
29.4
29-0
34-6
47-4
38-4
40-4
37-8
41-4
47-1
45-3
43-5
[44.0]
43-5
April.
May.
50-5
48-5
47.7
[46-0]
42.6
44.3
42-2
41-6
42:5
44-4
[44-7]
47-7
46-6
45-7
54-2
55-1
50-1
[49.6]
45-2
46-3
46-9
45-6
45-8
44-4
[45-0]
43-7
45-0
45:3
45-6
47-1
50-2
[50-2]
55-2
53-7
49.2
54-7
54-8
55:3
[56-5]
52-8
59-0
62-4
64-5
63-9
61-0
[60-5]
58-8
58-1
57-0
56-2
57-6
58-6
[55-4]
53-8
52-8
53-6
51-3
50-1
48-0
[52-0]
55:3
52-5
55-1
53-5
55-0
55-6
[56-4]
59-8
57-8
56-6
59-1
52-4
51:3
[53-2]
52-7
52-0
51-7
52.8
57-0
54-4
[53-1]
52-2
50-8
51-5
53-1
56-9
55-8
[53-6]
52-0
51-0
52-6
53-1
Sept.
60-6
52-8
49-6
51-5
49.8
47-7
[51-7]
52-0
57-4
51-9
50-5
53-2
52-2
[50-7]
46-3
49-0
53-0
54:5
49-8
47-4
[46-3]
43-8
39-9
42.4
49-3
46-8
51-1
[48-3]
46-6
46-3
Oct.
49-5
49.4
45-9
44-2
[45-2]
39-8
45-7
46-0
45-4
44-5
45:5
[49-5]
51-8
56-8
53-2
49.4
52-2
53-6
[49-6]
47-3
46-2
47.8
47-7
48-9
42.9
[49-0]
50-5
53-2
51-0
49-2
45-7
Nov Dee.
46-2 | 39-8
[41-7]| 37-2
38-6 | 33-4
32-9 | 34-5
37-9 | 39-6
51-0 | 36-9
49-8 | [37-9]
48-8 | 36-8
[45-3] | 40-9
43-0 | 38-5
41-1 | 42.4
38:3 | 34-4
38-0 | 28-3
34-6 | [36-2]
39-0 | 42-3
[40-4] | 40-0
42-2 | 29-8
41-2 | 31-7
47-2 | 35-1
42-8 | 35-7
37-2 | [35-8]
34-7 | 37-8
[40-4] | 38-7
32-3 | 35-6
43-6 | 41-8
52-0 | 41-9
48-6 | 38-6
47-8 | [40-8]
42-0 | 38-7
[41-5]} 45-0
38-8
TEMPERATURE OF THE AIR, 1845. 43
TABLE IJ.—Hourly Means of the Temperature of the Air for each Month in 1845.
Re OOCONOARWNeE OS
—
TABLE III.—Hourly Means of the Temperature of the Air for each Astronomical Quarter, and
for the year 1845.
Nov. Feb.
Dee. March.
Jan. April.
5
8
36-67 | 34-20
36-60 | 33:77
36:47 | 33-60
36-50 | 33:53
36-43 | 33-30
36-43 | 33-30
36-37 | 33-90
36-40 | 34-80
36-33 | 36-30
37-23 | 38-17
38-63 | 39-97
39:93 | 41-30
Izr
BOOonmnnsoaurhwnre ©
—
44 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE IV.—Errors of the Approximate Mean Temperatures, deduced from one or two Daily
Observations, for each Month, and the Year 1845.
Approximate Means (+) greater, or (—) less than true Means.
Months 1
and Max. 175 10™ | 21> 40m | 215 40m | 22h 10m | 22h 10m | 17h 10™ |} 21h 10m
Year. and and and and and and and and 75 10m,
Min. 4h 10m, | 102 10™.| 9» 40™, | 115 10™, | 105 10™. | 23h 10™.| 9h 10m,
January — 0-37 | +0-23 | —0-37 | —0-47 | —0-02 | —0-02
February +0-34 | +0-65 | —0-48 | —0-45 | —0-45 | —0-05
March : +0-64 | —0-12 | —0-22 | —0-05 | +0-03 | +0-18
April +0-71 | +0-67 | —0-91 | —0-53 | —0-73 | —0-38
May +0-56 | +0-20 | —0-08 0-00 0-00 | +0-20
June +0-32 | —0-02 | —0-15 | +0-25 | —0-47 | +0-03
July +0-41 | +0-20 | —0-35 | —0-08 | —0-20 | +0-05
August . +0-43 | +0-03 | —0-17 | +0-13 | —0-12 | +0-23
September +0-50 | —0-01 | +0-11 | +0-31 | +0-54 | +0-69
October —0-05 | —0-28 | —0-28 | —0-23 | +0-12 | +0-12
November —0-33 | —0-17 | —0-32 | —0-25 | +0-18 | +0-13
December —0-27 | —0-42 | —0-17 | —0-15 | —0-07 | +0-08
Year +0-24 | +0-08 | —0-28 | —0-13 | —0-10 | +0-10
The 12 Months.
Mean of Errors 0-41 0-25 0-30 0-24 0-24 0-18
Range of Errors | 1-08 1-09 1-02 0-84 1-27 1-07
TABLE V.—Diurnal Ranges of Temperature, as deduced from the Hourly Observations of the
Dry Bulb Thermometer, on each Civil Day of 1845.
TABLE VI.—Extremes of Temperature for each Month from the Register Thermometers ;
TEMPERATURE OF EVAPORATION, 1845.
45
Extremes
of Daily Mean Temperature, and of Diurnal Ranges, obtained from the Hourly Observations
for 1845.
Extreme Temperatures. Extremes of Daily Mean Temperature. || Extreme Diurnal Ranges.
Month.
Highest, Lowest.
a. ° a. °
Jan. 5 | 51-2] 31 |-—2-0
Feb, 13 | 44-9 1 6:7
March] 31 | 56-2| 16 | 15-3
April | 25 | 65-7} 6 | 24.2
May || 15 | 67-0] 14) 31-5
June 12 | 78-3} 1 | 36-6
July || 10 | 71-6] 29 | 35-2
Aug. || 29 | 73-6| 22 | 35-7
Sept. || 1 | 75-1] 24 | 28-1
Oct. 14 | 62-7} 6 | 26-0
‘Nov 6 | 55-8| 4 | 24-7
Dec. 27 | 52-0| 13 | 20-4
Range.| Mean.
53-2 24-6
38-2 25:8
40-9 35-7
41-5 45-0
35-5 49.2
41-7 57-4
36-4 53-4
37:9 | 54-6
47:0 | 51-6
36:7 | 44:3
31-1 40.2
31-6 36-2
Highest.
Lowest. | Range.
d. ° °
31 | 9-6] 36-9
8 | 27-6) 12-0
15 | 23-2} 24-2
4 | 38-4} 14-1
8 | 41-6] 13-5
28 | 48-0| 16-5
22 | 50-8| 10-7
16 | 51-0 8-6
23 | 39:9| 20-7
6 | 39-8; 17-0
24 | 32-3) 19-7
13 | 28-3/ 16-7
Mean.
Greatest. Least.
d. 2 d. 2
31 | 28-9} 27 | 59
2 | 26-0} 11 3-2
25 | 21-8 7 6-6
6 | 35-0] 10} 4-9
11 25-0 26 2-8
1 | 29.0] 28 8-0
29 | 23-4] 21 4-2
28 | 26-7 9 4-5
15 | 25-8) 10 7-3
6 | 25-3} 29 3:8
4 | 20.2) 28 2-9
14 | 25-0 9 5:4
TABLE VII.—Daily and Weekly Means of the Temperature of Evaporation, as deduced from the
readings of the Wet Bulb Thermometer, in 1845.
OONOUVKWNH
MAG. AND MET. OBS. 1845 anp 1846.
46 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE VIII.—Hourly Means of the Temperature of Evaporation for each Month in 1845.
HLS Jan. Feb. | March.| April. | May. | June. | July. | Aug. | Sept. Oct. Nov. | Dee.
12 31-7 | 30-5 | 31-0 | 37-6 | 42-2 | 49-2 | 48-7 | 49-0 | 44-1 | 45-1 | 39-3 | 35-1
13 31-4 | 30-2 | 30-5 | 37-2 | 42-0 | 48-9 | 48-1 | 48-6 | 43-6 | 45-3 | 39-1 | 35-7
14 31-3 | 30-0 | 30:5 | 37-1 | 41-5 | 48-7 | 47-7 | 48-2 | 43-5 | 44-9 | 38-7 | 35-5
15 31-7 | 30-0 | 30-3] 36-9 | 40-9 | 48-4 | 47-2 | 48-3 | 43-7 | 44:5 | 38-7 | 35-2
16 32-1 | 30-1 | 29-8 | 36-5 | 41-1 | 48-7 | 47-5 | 48-4 | 43-5 | 44-4 | 38-8 | 34-7
17 32-0 | 30-1 | 29-8 | 36-7 | 41-7 | 49-7 | 48-2 | 48-7 | 43-4 | 440 | 39-0 | 34-5
18 32-2 | 30-0 | 30-2 | 37-9 | 42-7 | 51-3 | 49-7 | 49-5 | 43-9 | 44:0 | 38-8 | 34-4
19 32-1 | 29-9 | 31-0 | 39-4 | 43-7 | 52-3 | 50-8] 50-9 | 45:7 | 44-0 | 38-6 | 34-5
20 31-8 | 30-2 | 32-3 | 41-2 | 44-6 | 53-7 | 51-7 | 52-2 | 47-9 | 448] 38-8 | 34-7
21 32-1 | 31:3 | 33-7 | 42.8 | 45-4 | 54-6 | 52-4 | 53.2 | 49-4} 46:0] 39-9 | 35.4
22 33-3 | 32-4 | 344] 44-1] 46-1 | 54:9 | 53-3 | 54-0 | 50-7 | 47-0 | 41-2 | 36-4
23 34-4 | 33-4 | 35-2 | 45-2 | 46-5 | 55-4 | 53-8 | 54-6 | 51-3 | 47-8 | 42-2 | 36-9
35-4 | 34-2 | 35-6] 46-0 | 46-2} 55-9 | 544 | 55.2 | 51-3 | 48-3 | 43-2 | 37-4
36:3 | 34-9 | 35-8 | 46-7 | 47-0 | 56-0 | 54-1 | 55-2 | 51-8 | 48-3 | 43-4 | 37-5
36-1 | 35-1 | 35-8 | 46-8 | 46-8 | ,56-1 | 543 | 55-3 | 51-7 | 48-3 | 43-4 | 37-2
35-4 | 34-7 | 35-9 | 46-8 | 46-6 | 55-8 | 54-0 | 54-8 | 51-2 | 47-9 | 42-5 | 36-9
34-4 | 33-9 | 35-4 | 46-2 | 46-1 | 55-3 | 54:0] 54-7 | 50-8 | 47-1 | 41-6 | 36-0
33-1 | 32-8 | 34-7 | 45-3 | 45-6 | 55-1 | 53-4 | 544 | 49-8 | 46-3 | 40-8] 36-0
. 44-0 | 44:5 | 54:2 | 52-9 | 53-9 | 48-5 | 45-8 | 40-1 | 35-5
32-1 | 31-5 | 32-9 | 42.3 | 43-7 | 53-7 | 52-0 | 52-8 | 47-4 | 45-5 | 39-9 | 35-5
32-2 | 31-1 | 32-3 | 41-1 | 42-8 | 52-7 | 51-0 | 51-6 | 47-0 | 45-2 | 39-8 | 35-7
32-3 | 30-8 | 31-8 | 39-9 | 42-3 | 51-5 | 50-2 | 50-8} 46-0} 45-0} 39-8 | 35-5
32-6 | 30-6 | 31-4 | 38-9 | 42-1 | 50-5 | 49-4 | 50-0 | 45-4 | 44-8 | 39-5 | 35-2
32-5 | 29-9 | 31-1 | 38-4 | 41:9 | 49-7 | 49-0 | 49-3 | 45-1 | 44-8 | 39-7 | 34-8
KB OOONODUKWNH ©
w
i)
iN
wo
bo
i=)
w
we
fon
—
TABLE IX.—Hourly Means of the Temperature of Evaporation for each Astronomical Quarter, and
for the Year 1845. |
—
PRESSURE OF AQUEOUS VAPOUR, 1845.
47
TABLE X.—Daily and Weekly Means of the Pressure of Aqueous Vapour, in inches of Mercury,
for the Year 1845, as deduced from Tables I. and VII.
TABLE XIJ.—Pressure of Aqueous Vapou
OCONHA oP WOO —
0-157
[ -159] |[
21
0-175
177]
-170
Mean
Pressure
June.
July.
Mean
Pressure
339
in. in.
[0-305] | 0-364
. -323
-408
-336
+332
386]
-439
-414
-388
-389
+353
+333
337]
-346
After
Moon
farthest
North.
D
WOWONIAMHR WWE OF
See
wh =
Mean
Pressure
of
Vapour.
0-249
-250
+254
277
271
-281
-289
301
271
278
-280
-271
278
-265
After
Moon
farthest
North.
in.
0-225
-212
in.
0-271
r, with reference to the Moon’s Age and Declination,
for 1845.
Mean
Pressure
48 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XII.—Hourly Means of the Pressure of Aqueous Vapour for each Month in 1845, as
deduced from Tables II. and VIII.
Pp HK OODNAANA WIE
i —
TABLE XIII.—Hourly Means of the Pressure of Aqueous Vapour for each Astronomical Quarter,
and for the Year 1645.
Mak Nov. Feb. May. Aug. Nov. Feb. May. Aug.
MT Dec. March. June. Sept. Dec. March. June. Sept. Year.
Jan. April. July. Oct. Jan. April. July. Oct.
h. in. in. in. in. in. in. in. in. in.
12 0-212 | 0-196 | 0-323 | 0-313 0-229 | 0-213 | 0-351 0-347 0-285
13 +213 -194 +319 ‘311 +230 +213 +350 +343 +284
14 +210 194 314 -307 +230 +213 +353 -341 +284
15 -210 -192 -309 -307 +227 -212 -348 +338 -281
16 -210 -189 -311 -306 +223 +209 -348 -340 -280
17 -210 -190 -318 -306 +220 -209 +347 -338 -278
18 -210 -194 -330 -309 +215 +207 +342 -338 -276
19 -208 -198 -336 318 +214 -207 +341 -333 274
20 +210 -203 +343 +329 “214 +205 337 +327 -271
21 +213 -208 +345 +337 +215 -201 +332 +322 -267
22 +221 -208 +348 341 +213 -199 +327 -317 -264
23 +223 +212 +350 +344 +212 -197 +323 +313 -261
RELATIVE HUMIDITY OF THE AIR, 1845.
49
TABLE XIV.—Mean Relative Humidity of the Air for each Week-Day and Week in 1845,
Saturation being = 1.
Day. | Jan Feb. | March. | April
1 | 0-984 | 0-882 | 0.897 | 0-747
2 -980 | [ -894]|[ -873]| -774
3 924 | -.920| -889 | -849
4 | -888 | .886| -885 | -936
5 ||[ -924]| -781 | -888 | -856
6 838 | -742 | -862 |[ -847]
@oien-967 |. -838 |. -864)) -833
8 948 | .882| -875 | -819
9 | -917 |[ -842]/[ -838]| -791
10 855 | -912| -897 | -855
11 875 | -834| -768| -798
12 |[ -903]| -842 | -831 | -820
13 | -940 | -854 | -768 |[ -808]
14 905 | -795 | -819 | -827
15 || -925 | -761| -931| -771
16 || -989 |[ -856]|[ -804]| -777
v7 857 | -862 | -758 | -774
18 863 | -904| -758 | -890
19 | [ -901]| -941 | -791 | -846
20 90) | “862. | .-720e0 +777]
21 869 | -917 | -836 | -685
22 | -929| -849 | -898| -697
23 891 |[ -875]|[ -812]| -768
24 915 | -846 | -731 | -957
25 897 | -863 | -894| -779
26 ||[ -926]} -915 | -795 | -813
27 941 | -878 | -760 |[ -835]
28 946 | -802| -711 | -814
29 -966 652 | -811
30 955 [ -726]| -838
31 943 ‘712
a
May June. July. Aug.
0-845 | [0-808]| 0-894 | 0-863
“727 834 727 +854
754 -801 -969 |[ -847]
[ -798] -810 -760 *852
‘751 -849 -735 +825
837 -789 [ -832] 843
877 752 844 -836
843 |[ -809] 852 -789
+892 -798 831 -940
844 -870 -766 |[ -838]
[ -831] 795 +872 -867
-780 ‘779 +854 -820
756 -750 | { -808] 776
873 -817 -$46 -822
854 |[ -836] +725 ‘736
782 -907 -783 -728
fo2 -933 +925 [ -836]
[ -812] +833 833 -905
-808 -785 -876 -938
833 -760 | [ -900] -889
+845 743 -958 -766
-866 |[ -783] -909 -793
879 -751 -901 -867
-916 871 ‘867 | [ -822]
[ -895] -789 -788 O11
-963 ‘751 -818 :790
-930 -853 |[ -803] -804
814 :883 -755 -800
832 |[ -821] -793 851
-784 -817 -797 -838
-790 -846 |[ -835]
Sept. Oct.
0-835 | 0-804
891 -836
793 975
-847 -925
-836 |[ -890]
855 -856
-859 | 898
852 850
871 871
872 -916
882 878
841 |[ -856]
-903 ‘872
-876] -740
845 837
834 -768
-949 873
-890 ‘784
‘776 |[ -790]
-833 747
-810] -765
-788 -803
‘753 817
819 -783
778 ‘781
-833 |[ -837]
827 -861
°823]| -868
846 912
851 835
857
Relative Humidity, Saturation being = 1, with reference to the Moon’s
Age and Declination, for 1845.
Mean
Relative
Humidity.
MAG. AND MET. oss. 1845 ann 1846.
Mean
Relative
Humidity.
0-835
847
After
Moon
farthest
North.
o
©
=|
rj
SCeEONOUhWNE SO
Mean
Relative
Humidity.
0-843
834
-826
+829
-839
859
-846
-863
-836
844
-862
856
859
848
Mean
Relative
_ | Humidity.
0-825
-863
RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XV1.—Hourly Means of the Relative Humidity of the Air for each Month in 1845,
Saturation being = 1.
Jan. | Feb. | March.| April. | May. | June. | July. | Aug. | Sept. Oct. Nov.
12 || 0-931 | 0-898 | 0-881 | 0-928 | 0-926 | 0-921 | 0-935 |0-931 | 0-937 | 0-875 | 0-886
13 940 | -897 | -884 | -939 |} -919 | -933 | -936 | -937 | -935 | -887 | -892
14 -930 | -907 | -889 | -935 | -914 | -922 | -930 | -929 | -938 | -872 | -894
15 -941 | -907 | -883 | -927 | -912 | -916 | -934] -948 | -945 | -867 | -887
16 ‘937 | -897 | -871 | -937 | -913 | -909 | -935 | -932 | -945 | -872 | -905
17 -936 | -902 | -886 | -926 | -892 | -903 | -921 | -930 | -938 | -879 | -899
18 -928 | -897 | -888 | -918 | -880 | -874 | -912| -907 | -939 | -873 | -905
19 ‘927 | -896 | -872 | -893 | -852 | -834 | -878 | -881 | -917 | -879 | -894
20 ‘941 | -888 | -829 | -864 | -816 | -801 | -843 | -831 | -881 | -866 | -916
21 ‘927 | -864 | -801 | -816 | -790 | -762 | -807 | -789 | -842 | -852 | -885
22 ‘917 | -808 | -738 | -773 | -771 | -742 | -775 | -754 | -792 | -817 | -858
23 -882 | -823 | -706 | -738 | -748 | -737 | -747 | -734 | -766 | -792 | -832
0 -878 | -800 | -684 | -704 | -741 | -719 | -732 | -730 | -757 | -784 | -827
-866 | -779 | -679 | -664 | -746 | -699 | -715 | -715 | -726 | -749 | -800
‘858 | -788 | -673 | -652 | -757 | -707 | -726 | -703 | -697 | -766 | -814]| -816
-870 | -792 | -687 | -640 | -738 | -711 | -722 | -716 | -702| -784]| -840 | -835
-890 | -763 | -739 | -649 | -752 | -731 | -735 | -742 | -745 | -806 | -872 | -846
-930 | -819 | -751 | -692) -774 | -739 | -765 | -779 | -777 | -828 | -878 | -846
‘910 | -849 | -800 | -737 | -802 | -774 | -778 | -831 | -840 | -843 | -879 | -862
‘918 | -874 | -841 | -807 | -838 | -807 | -822 | -863 | -877 | -850| -878 | -862
-923 | -882 | -850 | -858 | -868 | -844 | -868 | -893 | -873 | -862 | -875 | -863
-918 | -890 | -862 | -871 | -891 | -870 | -902 | -901 | -901 | -861 | -881 | -878
‘915 | -884 | -883 | -906 | -896 | -903 | -919 | -923 | -913 | -857 , -880 | -861
-905 | -887 | -882 | -923 | -908 | -912 | -923 | -924 | -912]| -857 | -888 | -851
RFP OOCaOnNourwde
—_——
TABLE XVII.—Hourly Means of the Relative Humidity for each Astronomical Quarter, and
for the year 1845.
Feb. May. Aug.
March. | June. Sept.
April. July. Oct.
=
4
5
0-729 | 0-731 | 0-757
707 -720 *730
‘704 -730 -722
‘706 724 ‘734
‘717 -739 -764
‘754 -759 795
795 785 838
841 -822 863
-863 -860 ‘876
874 888 888
891 -906 -898
897 -916 :898
SK OCOOONOOAKR WHY ©
_—
ATMOSPHERIC PRESSURE, 1845. Dil.
TABLE XVIII.—Daily and Weekly Means of the Height of the Barometer, for 1845.
Gr: Jan. Feb. March. | April. May. June. July. Aug. Sept. Oct. Nov. Dec
1 || 30-031 | 29-727 | 29-699 | 29.937 | 29.257 |[29.555]| 29.055 | 29.256 | 30-094 | 29-405 | 29.964 | 29.198
D) 29-886 |[29-594]|[29-770]} 29-889 | 29-383 | 29-559 | 29-411 | 29-230 | 30-066 | 29-439 |[29-815]| 29-288
3 29-614 | 29-788 | 29-642 | 29-791 | 29-469 | 29-153 | 29-468 |[29-336]| 30-057 | 29-322 | 30-103 | 29-037
4 29-741 | 29-922 | 29.789 | 29-857 |[29-502]| 29-049 | 29-588 | 29-323 | 30-062 | 29-320 | 29-881 | 29.253
5 [29-798]| 29-677 | 29-957 | 29-908 | 29-682 | 29-105 | 29-950 | 29-496 | 30-044 |[29-343]} 29.502 | 28-870
6 29-691 | 29-783 | 30-166 |[29-537]| 29-638 | 29-038 |[29-626]] 29-506 | 30-090 | 29-641 | 29.271 | 29-026
a 29-964 | 29-873 | 30-185 | 29-628 | 29-585 | 29-462 | 29-688 | 29-463 |[29-966]| 29-237 | 29-116 |[29-411]
8 29-894 | 29-882 | 30-159 | 29-130 | 29-340 |[29-603]| 29-567 | 29-480 | 29.899 | 29-099 | 29.220 | 29.659
9 29-760 |[29-798]|[30-020]| 28-910 | 29-322 | 29-957 | 29.495 | 29-275 | 29-729 | 29-052 |[29.224]| 29-689
10 29-370 | 29-421 | 30-035 | 29-030 | 29.408 | 30-047 | 29-415 |[29-535]] 29-970 | 29-122 | 29-193 | 29.969
11 29-230 | 29-826 | 29-848 | 29-406 |[29-610]]| 30-008 | 29-458 | 29-497 | 29-931 | 29-286 | 29-195 | 29-631
12 [29-458]| 30-006 | 29-726 | 29-463 | 29.524 | 29-970 | 29-656 | 29-708 | 29.830 |[29-515]| 29-352 | 30-190
13 29.397 | 29-522 | 29-610 |[29-557]| 29.944 | 29-990 |[29-643]| 29-787 | 29-606 | 29-904 | 29-650 | 30-191
14 29-507 | 29-510 | 29-540 | 29-208 | 30-123 | 29-957 | 29.695 | 29-663 |[29.475]| 29.972 | 29-767 |[29-686]
15 29.482 | 29-717 | 29-758 | 29-978 | 30-089 |[29-775]| 29-866 | 29-611 | 29-227 | 29.757 | 29.508 | 29-306
16 29-725 |[29-686]|[29-594]| 30-255 | 30-047 | 29-566 | 29.770 | 29-686 | 29-279 | 29-683 |[29-191]] 29-313
17 29-656 | 29-667 | 29-545 | 30-234 | 29.957 | 29-610 | 29-677 |[29-454]| 28-979 | 29.519 | 28.924 | 29.488
18 29-329 | 29-801 | 29-497 | 30-116 |[29-873]] 29-556 | 29.828 | 29-393 | 28-839 | 29.618 | 28-855 | 29-388
19 [29-622]) 29-899 | 29-617 | 30-053 | 29-705 | 29-683 | 29-952 | 29-244 | 29.297 |[29.742]] 28-441 | 28-632
20 29-370 | 29-789 | 29-941 |[29-988]| 29-746 | 29-899 |[29-871]| 29-126 | 29-573 | 29-546 | 28-580 | 28-583
21 29-857 | 29-573 | 29-993 | 29-972 | 29-693 | 29-829 | 29-976 | 29-571 |[29-516]| 29-973 | 29-101 |[29-082]
22 29-798 | 29-285 | 29-769 | 29-854 | 29-717 |[29-713]| 29-935 | 29-804 | 29-505 | 30-116 | 29-341 | 28-839
23 29-410 |[29-566]|[29-760]| 29-702 | 29.744 | 29-841 | 29-857 | 29-597 | 29-970 | 30-139 |[29-237]| 29-217
24 29-389 | 29-532 | 29-831 | 29-570 | 29-778 | 29-574 | 29-792 |[29-650]| 29-912 | 29-939 | 29-804 | 29.835
25 29-353 | 29-755 | 29-643 | 29-430 |[29-751]| 29-450 | 29-682 | 29-505 | 29-396 | 29-983 | 29.452 | 29-845
26 [29-180]| 29-405 | 29-381 | 29-006 | 29-579 | 29-549 | 29-582 | 29-509 | 29-436 |[29-801]} 29-144 | 29-381
27 28-951 | 29-756 | 29-221 |[29-395]| 29-772 | 29-426 |[29-548]| 29-916 | 29-301 | 29-586 | 29-319 | 29.274
28 28-876 | 29-778 | 29-051 | 29-297 | 29-918 | 29-199 | 29-426 | 30-102 |[29-368]| 29-616 | 29-190 |[29-393]
29 29-101 29-782 | 29-558 | 29-796 |[29-347]| 29-464 | 30-127 | 29-421 | 29-546 | 29-199 | 29.347
30 29-036 [29-625]| 29-508 | 29-851 | 29-445 | 29-342 | 30-146 | 29.252 | 29-577 |[29-205]| 29-126
31 29-417 29-871 29-920 29-206 |[30-099] 29-863 29-388
52 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XIX.—Diurnal Range of the Barometer for each Civil Week-Day and Week for 1845.
He Jan. Feb. March. | April. May. June. July. Aug. Sept. Oct. Nov. Dec.
in. in. in. in. in. in. in. in, in.
1 0-053 | 0-249 | 0-130 | 0-076 | O- 066 [0- 299] 0- 706 0-061 | 0-123 | 0-161 | 0-092 | 0-396
2 +313 | [ -268]/[ -193] -067 +265 -198 -581 -145 -042 093 |[ -231] -404
3 -162 -333 +338 -181 +123 -565 -300 |[{ -117]| -084 +237 -077 +253
4 +332 +217 -057 177 |[ -147] +289 -540 +226 -032 -174 -370 -446
5 [ -246]| -219 -268 -070 073 +245 +132 +117 -044 |[ -218] +289 -164
6 524 -240 ‘087 |[ -220]| -099 -434 |[ -230]| -089 -039 -199 -263 -299
7 -040 -051 -068 -400 +257 -200 -125 074 |[{ -110] -409 -227 |[ -308]
8 -103 -072 -119 +354 -152 |[ -195] -210 -075 -158 -198 -148 -209
9 -235 |[ -201]|[ -127]| -140 -026 “177 -076 -241 -143 -197 | [ -206]| -287
10 541 -147 +228 -330 +215 -056 -105 | [ -138] -244 -090 -200 -446
11 31d -472 -171 -259 |[ -197] -061 -176 +238 -130 +373 -138 “512
12 [ -385] +222 -092 -090 -310 -076 +141 +173 092 |[ 183] +258 -280
13 -303 -433 196 |[ +350] +395 043 | [ -163] -030 -397 -109 +258 +145
14 | .284| -325| -200| -684| .os4| -120| -344| -204 |( .205]| -185 | -115 |[ -249]
15° -570 -067 -158 -670 039 |[ -085]| -075 -108 -110 +142 +299 +134
16 -163 |[ -184] [ -169] -069 -146 -106 -140 ‘045 -146 096 |[ -311] +257
17 -156 -091 -088 +125 -061 -055 061 |[ -172]| -358 “186 +343 -164
18 +391 -146 -095 ‘072 |[ -079] “112 -201 -053 +149 +369 +289 -160
19 |[ -272]| -045 -278 -087 -081 +352 -036 +283 ‘721 |[ -229]| -564 ‘931
20 671 -172 -301 |[ -116] -083 -060 |[ -078] +342 -321 +364 -658 -790
21 -170 -288 +294 “128 -067 -065 -034 397 |[ -405]) +229 -307 |[ +687];
22) a 6-038 +151 -160 -099 079 |[ 167] -059 +143 -568 +131 -278 | 0-875
23 527 |[ -357]|[ -269] +185 -027 -065 -080 -140 -275 -094 | [ -320]| 1-147
24 +527 -568 -114 -095 -056 *375 083 |[ -275]| -397 +325 -207 | 0-221
25 -730 | -523 -297 342 |[ -113] ‘085 -082 -296 ad +333 +362 +297
26 [ -481]| -441 -432 —225).) ~-125 -082 -176 -297 -228 |[ -184]| -106 ‘715
P4ri -481 +333 +334 |[ -250]| -323 +383 |[ -115] -378 -368 -069 -169 -696
28 -198 -031 -509 -314 -068 +353 -034 -044 |[ -229] -077 -268 |[ -613]
29 125 | -618 +216 -123 |[ -358] -043 -035 -207 +209 -445 -550
30 +177 [ -350]| -311 +143 -046 -275 -042 -083 -489 |[ -322]| -745
31 -414 -443 -058 -067 |[ -062] -067 -675
TABLE XX.—Diurnal Range of the Barometer, with reference to the Moon’s Age and Declination,
for 1845.
r Mean r Mean After Mean After Mean
y pee S|] Diurnal ee S| Diurnal ae ‘ Diurnal Bein Diurnal
8°. Range. se Range ail Range Hor a Range
Day. in. Day in. Day. in Day. in
ies 0-159 0 0-270 0 0-256 14 0-292
16 -190 1 +226 1 263 15 243
17 +261 2 +265 2 210 16 229
18 277 3 -218 3 226 17 219
19 +285 4 +229 4 271 18 261
20 -316 5 +240 3 220 19 232
21 337 6 +227 6 267 20 182
22 +254 7 +275 if 221 2 203
23 -309 8 +224 8 212 22 231
24 +322 9 -174 9 211 23 248
25 +149 10 -197 10 +246 24 +242
26 -270 11 -194 11 -203 25 +252
27 +234 12 +222 12 -208 26 +314
28 +255 13 -150 13 -239 27 :274
29 +227 14 -169 |
ATMOSPHERIC PRESSURE, 1845.
53
TABLE XXIJ.—Hourly Means of the Height of the Barometer for each Month, and the Year 1845.
Year.
in.
29-5857
-5813
“6792
-6750
-07395
5797
5799
-0851
+5907
70941 |
5963 |
0957 |
5927
-5880
-0841
0814
-5818
5837
5871
-5907
5938
-5938
5935
ao Jan. Feb. | March.| April. | May. | June. | July. Aug. Sept. Oct. Nov. Dec.
h. in. in. in. in |) ha in. in. in. in. in. in. in.
12 ||29.525 |29-693 |29-711 |29-648 |29-695 |29-608 |29-623 |29-564 |29-660 |29-589 |29-329 |29-384
13 -518 -690 ‘712 641 -693 -604 -619 -563 -657 +585 -319 -375 |
14 “O18 -688 -710 642} -691 -600 -613 564 -652 +583 ool PAN eer 7e
15 “511 -681 -706 638 -689 +598 -612 561 647 +084 -301 +372
16 +504 -680 -709 637 -690 -600 -613 -560| -644 -585 +294 -366
17 -501 -681 714 640 693 -603 -617 -566 -648 -086 +293 -366
18 +502 -683 -720 646 699 -603 -621 -570 -658 +593 +296 -368
19 -508 -689 ‘731 649 ‘701 -606 -625 575 -658 -603 -305 -371
20 -519 -700|} -740 650 -704 :607 -629 SOh -659 -611 317 375
21 +526 -704 -747 653 -703 -607 -629| -580 -658 -613 +328 381
22 529} -708| -756 653| -702| -605| -630| -580|) -653) -615| -337| -388
23 528 -716 -759 651 -702 -602 -628 -580 -647 “613 338) -384
0 -524 -713 -761 648 -700 -598 -627 -580 -643 -608 +332 -378
1 “514 -709 -756 643 -700 +595 -624| -580 -634| -601 +330 -370
2) -509 -704| -753 633 -699 +592 -622| -578 -628 -600 +328 +363 ||
3 +510 -704| -748| -627 -697 587 -616 578 -624| -597 7328 -361
4 511 -705 *748 626 696) +585 -612 577 -624 -599 331 -367
5 -510 ‘711 -751 628 -698 584] -612 577 -630 604 -334 -366
6 510 716 -753 630 -705 -5686| -618 -580/ -636 -609 337 | -365
7 -509 “721 *759 638 -713 -587 -622 -588 -641 -614 -336, +360
8 -510 -724| -760 646 -722 -593 -626 +592 -646 -616 -337 +394
9 -505 +724 “757 645 -726 592 -629 -597 -646 ‘617 +334) -354
10 || -500 -726 -756 647 -730 “592 -632 -599| -643 -615 -327 355
11 “501 “725 -756 647 731 “591 -633 -598 -640 ‘617 +322 357
5932
TABLE XXII.—Reduced Hourly Variations of the Height of the Barometer for each Astronomical
Quarter, and for the Year 1845.
Feb.
March.
April.
in.
0-0126
-0086
-0066
-0007
-0000
-0020
-0057
-0114
-0175
‘0211
-0245
-0265
MAG. AND MET. OBS. 1845 anp 1846.
RKOOONOUFRWNrF OC:
—
54 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XXIIT.—Extreme Readings of the Barometer for each Month in 1845; Extreme Daily
Heights for each Month; and Extreme Diurnal Ranges for each Month, together with the
Ranges and Means of the Extremes.
Extreme Readings. Extreme Daily Means. Extreme Diurnal Range
Month.
Highest. Lowest. Range.| Mean. Highest. Lowest. Range. | Mean. Greatest. Least. —
a Ge doen. edi he |eedns in. in. a. in. a. in. in. in. a oak ea
Jan. 0 23 | 30-052) 27 18/|28-809)| 1-243 |29-430 1 | 30-031] 28 | 28-876) 1-155 | 29-453 || 25 |0-730| 7 |0-040
Feb. 11 22 | 30-077| 25 17 |29-213| 0-864 |29-645 || 12 | 30-006| 22 | 29.285) 0-721 | 29-645 || 24 |0-568! 28 |0-03
March|| 8 23 | 30-244| 27 21 |28-839| 1-405 |29-541 7 | 30-185) 28 | 29-051| 1-134 29.618 29 |0-618, 4 |0-057
April | 16 20 | 30-289| 9 4/|28-860| 1-429 |29-574 || 16 | 30-255) 9 | 28-910) 1-345 |29-582|| 14 |0-684, 2 |0-06)
May {13 oi 30-161, 1 6 |29-225| 0-936 |29-693 | 14 | 30-123 29-257) 0-866 |29-690|| 13 |0-395, 9 |0.024
June ‘ie a 30-072| 3 11|28-874| 1.198 |29-473| 10 | 30-047| 6 | 29.038) 1.009 |29-542| 3 |0-565/ 13 |0-04
July 5 10 |30-003| 1 5 {28-727} 1-276|29-365 || 21 | 29-976] 1 | 29-055| 0-921 |29.515 0-706 {58} 0-03:
} Aug. | 31 0 | 30-175|19 20/29-008| 1-167 |29-591 || 30 | 30-146) 20 | 29-126) 1-020 |29-636 | 21 |0-397| 13 |0-.0
Sept. 0 13 | 30-162|}18 2)|28-781| 1-381 |29-471 1 | 30-094] 18 | 28-839} 1-255 |29-466 || 19 |0-721 4 |0-035
Oct. 22 9 |30-177| 8 16|28-946| 1-231 |29-561 || 23 | 30-139} 9 | 29-052) 1-087 |29-595 || 30 |0-489| 31 |0-06'
| Nov. 2 13 | 30-138] 19 13 |28-239] 1-899 |29-188 3 | 30-103| 19 28-441 | 1-662 |29-272 || 20 |0-658| 3 |0-0
Dee. 12 11 | 30-284| 19 15 |28-282) 2-002 |29-283 || 13 | 30-191| 20 | 28-583) 1-608 | 29.387 || 23 |1-147| 15 |0-1
TABLE XXIV.—Hourly Variations of the Pressure of Dry Air for each Astronomical Quarter,
and for the Year 1845.
Nov. Feb.
Dec.
Jan.
0-019
-010
013
-006
-000
-000
-003
012
-020
026
-025
023
March.
April.
0.022
-020
018
‘014
-016
017
017
018
-019
-018
021
-019
©) ANTS Gy) 8Oihe ee COO NS Get ©
= ja
i)
PRESSURE OF THE WIND, 1845. 55
TABLE XXV.—Daily and Weekly Means of the Pressure of Wind, in Pounds on the Square Foot
of Surface, deduced from the greatest pressures occurring between the Hourly Observations, in
1845.
March.
Ib. Ib.
0-51 | 0-56 | 0-56
[0-61] | [0-43] 0-21
0-33 | 0-38 | 0-10
0-80 | 0-13 | 0.22
1-92 | 0-21 | 0-15
3-02 | 0-48 | [0-30]
0-61 | 0-66 | 0-28
0-08 | 0-79 | 0-82
[0-91] | [0-93]| 0-24
0-16 | 0-96 | 215
0-78 | 212 | 1-99
0-80 | 0-60 | 0-40
2.90 | 0-31 | [1-89]
0-64 | 0-94 | 3-11
0-51 | 0-30 | 3:57
[0-76] | [0-50]| 0-13
0-31 | 0-35 | 0-12
0-07 | 0-14 | 0-23
0-11 | 0-95 | 0-40
0-47 | 0-45 | [0.27]
0-35 | 2.05 | 0-17
0-20 | 2.44 | 0.36
[0-44] | [1-29] 0-32
0-42 | 0-35 | 0-23
0-40 | 0.61 | 0-75
0-83 | 1-83 | 1-75
0-18 | 3.44 | [1-08]
1-12 | 5-83 | 1.09
134 | 0-74
[2:05]| 1-90
0-90
Oo AanN Oo FF Ww DO K
tl a a |
wo no = CS
tS
15
_
ior)
—_
~I
po Ww wy | =
POPE ps Sy © Re) aie'o)
i)
eo
wo wo Ww
a oO
ww wo Ww bv
- © © CO VT
56 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XXVI.—Daily and Weekly Means of the Pressure of Wind in Pounds on the Square Foot
of Surface, deduced from the greatest pressures observed within 10™ at the Observation Hours,
in 1845.
March. | April. May.
TABLE XXVII.—Mean Pressure of Wind with reference to the Moon’s Age and Declination,
for 1845.
Moonta aes on Rloon's ie acs a a ard ee
0 0 to) 0
Age | wing. | “8° | wina. | 72S) wing, [ert] Wind.
Day. 1b. Day. Ib. Day. Ib. Day. Ib.
15 0-53 0 0-86 0 0-56 14 0-55
16 0-49 1 0-67 1 0-63 15 0-53
17 0-79 2 0-70 Z 0-60 16 0-42
18 0-51 3 0-52 3 0-68 17 0-49
19 0-69 4 0-51 4 0:76 18 0-54
20 0:94 5 0-38 5 0-34 19 0:59
21 0-49 6 0-42 6 0-51 20 0-50
2p, 0-55 7 0-55 7 0-54 21 0-45
23 0-59 8 0-50 8 0-37 22 0-32
24 0-57 9 0-48 9 0-50 23 0-65
25 0-48 10 0-44 10 0-51 24 0-55
26 0-59 ial 0-33 iu 0-44 25 0-82
i 0-68 12 0-48 12 0-58 26 0-92
28 0-70 13 0-40 13 0-75 27 0-69
29 0-66 14 0-39 |
PRESSURE OF THE WIND, 1845.
TABLE XXVIII.—Maximum Pressure of Wind in each Civil Day in 1845.
Day. Jan. Feb. | March.| April. | May. | June. | July. | Aug. | Sept. Oct. Nov. | Dec.
a lb. lb. lb. lb. lb. lb. 1b. 1b. Tb. lb. lb. |
1 Oat |) Seamed 484 4279 SEs) 6 15e) H6:0 4) NIV ah °0-65)°13-5 >| 00-4 |, 5.0
2 0:1, || sOSMINEOCs | O08.) 30 [> 260l 1871 08 lo 05 | 1-8") 0.8 | D5
3 1-2) © Loe eo2 0-5) 12-59) $3450) 92:0 WI i4-0 Ob 80-4 9321») 00-4 Ip) ed
4 2:8 lS CMO | 05.) 45.) 4:3.) 5.9.) “15 | 02") 1.6°| 1-2.) C13
5 5-2) S65 eto 10-5.) 135 Ol 40) F-00108!) 80-20) 10-4 4.40-9 |. 5.0
6 3:6) Oe 07. \. 1-8.) 6:6.) 1-4.) 0-6] 0-17 || 0.5 "| (2-2 |'* a9
7 0-1! | 1a etes 4) 1-3 F409 Wh 12-3. 11-001) 00-7 a) 10S a) 1001-037 | oo
8 0:5) OME | a2-901 te7 ) 2-00) 240), 0-90! -O.7 |) t.4 F' 1-9 | Bes
9 0-4") MorsmeOo) 708) 91-44-04) 3-8-4) 120°) 99-07) 09-34) 000 | 4:3
10 52.) VOM =4-1 | 0-7. | 12) 04.) 34) a4 | 0-6 '| Ol | 23
V1 3:8) ||) USanmeeem| S327 OL-OG| 71-54) 1-93.48 $P4 oh (0-4) 00-85 )-10-2 | 727
12 05) :S-7e) AleG el 8-1 odd | 18) 1-2.) oe | (0-7 | 05 | 16
13 0-6") “GnO> +) 2:60) 92.0) 10-40) 0.5 1) 10-40) (0:5 7) 1 2-85) 0-2 |i OF
14 0-8 | of 9u| G7 os) 0-7 + 0-4-| 9.7") t-1 | ne]. 2-6 || 0-1 | 5:8
15 0-6") “1:2 O78 6-5 | 0-9 | 10-2°) 1.5.¢) 92:70). 0-7 {> 2:00).51-8. |} 3:8
16 0:-4-| O-SmmEOOu| 0:3.| 1-4.|.-0-2 | 6.8.) 1-8 '| 09] 3-2 | 3-1 | 5-0
17 D7 OURO POS | D7 OQ) OsFeefenOe | odeD | BA. | 224) 0:6
18 1:9 | OSmmisy| 0:8.| 24 | 05 | O38 | 1) 19 | 7:3) 23 | 0:9
19 1-7 | O2Meeo") 12 | 26 | O8 | O85 | 25° |-9.0 | Bo] 43 | 25
20 3-2) | aS S026 4] VS bh OF ele'a- Bed eseO lyf - aeQel| SO li] 3-3} F438
21 2.0 | (Grima | Og) 2-0 | epg og 4) Og.9 | om | 156 | 86
22 L6G. |*O.Gummee0) 1-3 | 20>) 24 |) 1.46 | 94 |.3.6 | 1-7 | 0-3.) 7:8
23 63) |. 0s 2 | 0-5 | 66 | 23 | 27,1 09 | 1.7 | 0-6.) 43
24 1:8 | “Smo! ‘ors! | 1:0 8 OM OG Pas: | ra | oele | Lol] 29
25 4-6 -| fe lB 015 1-00-06 |--1-2-|)9.6..| 167] 3B | Qt
26 $-7 | Sipe) | 143°) “O50 £0) | 9.0 1.2.8 |o 2-3 | 36 | 46.) 66
Pa OF | OGM) 40 |. 13 | 8 | og | a6. | as | 36 | 62 | Ze
28 1-5 || OSes | 82:2 4-4-1 7-00) 00:9 | 01. [+32 | v8 | 24°] 46
29 0-7 ep aio. |) 1-5 29% o4 | O:3~|o9-| 17 | 83 as
30 0-2 Pere V4-G) i) F-24259 ian 2B 0-7) | weer | oe | GB) 60
31 1-0 3-0 0-6 fee 06 17 1-8
MAG. AND MET. OBS. 1845 anp 1846. P
58
RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XXIX.—Means of the Maximum Pressure of Wind between the Hours of Observation,
for each Month in 1845.
TABLE XXX.—Means of the Maximum Pressure of Wind between the Hours of Observation, for
each of the Astronomical Quarters, and for the year 1845.
Feb.
March.
April.
Ib.
0-75
0-71
0-76
0-76
0-79
April.
June.
May.
PRESSURE OF THE WIND, 1845. 59
TABLE XXXI.—Hourly Means of the Maximum Pressure of Wind within 10™ at the Observation
Hours, for each Month in 1845.
June.
Ib.
0-24
0-28
0-24
0-23
0-32
0-32
RK OOANOurKhwWwnNr oo
—
TABLE XXXII.—Hourly Means of the Maximum Pressure of Wind within 10 at the Observation
Hours, for each of the Astronomical Quarters, and for the Year 1845.
SK OODOANAUBRWNe OS
— jt
60 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XXXIII.—Number of Times which the Wind blew from each Point of the Compass at the
together with the sums of the Pres-
January. February. March. April. May. June.
Wind blowing gi | S| eee eee
from | \|
Times. | Press. || Times. | Press. || Times. | Press. || Times. | Press. | Times. | Press. || Times. | Press.
||
Poa lb. 1b) Ib. Ib. lb. 1b.
N. 1 0-1 fi 4-7 || 28 | 21-1 | 18 | 45-2 | 19 | 228 | 10 | 18-1
N by E. 3 0:7 5 14 | 14 | 11-4 | 26 | 59-4 | 18 | 201 | 3 | 10:3
NNE. 2 | 0-2 6 24 | 28 | 158 | 31 | 43.2 | 86 | 68-2 1 2-0
NE by N 4 | 30] 2 | 03 | 14 | 86] 16 | 127 | 109 | 671 | 2 | 083
NE. 6 | 09 3 | 0-4 | 15 | 5-1 | 36 | 11-0 | 104 | 65-7 | 16 | 76
NE by E 1 1-2 3 | 0-9 5 | be im | 46 18 | 10-7 2 | 1-4
ENE. 1 0-6 6 3-1 7, 1:7 || 26 78 | 18 | 93 10 21
E by N. 50) 2-0) Bf). o@ | tae] seo) aie) 105°) | 13-4) @zaaee een
E. 4 | 0-7 4 0-9 | 11 5-9 8 1-8 7 | 42°). oe oe
E by S. 3 0-5 we ve 2 | 08 2 | 0-5 20 5aH 2-0
ESE. 6 1-2 3 0-8 5 15 3 1.2 1 1-1 4 1-1
SE by E 3 1-2 2 0-4 3 0-9
SE. 11 2.8 5 1-0 5 0-8 4 15 2 | 0-3 4 | 08
SE by S. 5 1-5 2 1-8 5 2-9 . .
SSE. 8+] BL) Wo) 10-2 8 | dee A abi 17-6: | Kis 3 | 0-4
S by E. g hoes. ao> | 6c 6 eeBeneege ase. | cme 5. | 3m
S. 4F BBA lr 2B ol 23-6. 04 29 || 12 5:Q || oe 13 | 17-4
S by W. 39 | 31-9 23 9-1 7 19 | 15 9.3 2 in OA | te 5-6
SSW. 64 | 66-6 || 51 | 24-5 || 41 | 50-1 || 40 | 35-2 9 | 10-7 || 47 | 56-2
SW by S 26) 44-8] OF | aia il 34) } 34-3 qe | 12.0 6 8-9 | 47 | 55-3
SW. 58 | 60-2 || 63 | 43-7 || 35 | 34-6 || 36 | 29-0 || 24 | 49-4 | 89 | 66-6
SW by W 15 4.4 15 | 13-2.||. 15~|.39-7 | 14 | 10-2 | 19 | 23:6 || 235 aiezeem
WSsw. 12g 4:3 18 | 40 || 30 | 31-5 7 2-6 || 16 | 9-6 |) 38 | ive
W by 8. 10 | 3-9 i 4.3 13 | 18-6 a OD | ea oe 8 1:7
Ww. 9 3-5 12 .|.40 || 20 |,36-0 3 0-6 | 13 5-9 || 21 6-3
W by N. 6 Os 15 Sies 17 | 26-3 || + os) | eas 1-7 7 oS
WNw. a 1-7 14 9-1 20 | 19-0 1 0-1 | 15 | 11-3.) 24 ee
NW by W. 1 | o9 | 4 397 | 10 [dee | 2] ... | a) 3.30 eee
NW. 16. }) 9-4-9 21 MBS |G Si) |ebs4 3 1:9 | 15 | 119>] 18 3}
NW by N. 6 2-6 || 22 | 20-4 || 30 | 19-0 8 | 16-8 9 | 42 4 | 13om
NNW. 5 2-1 32 | 44.9 | 23 | 17-0 2 | 02 | 12 | 7-8 | 13 | oem
N by W. 2 0-7 17 | 16-1 33 | 35-0 15 | 24-0 6 4.2 5 2-7 |
PRESSURE AND DIRECTION OF THE WIND, 1845.
61
Observation Hours, with a Pressure of one-tenth of a pound or upwards on a square foot of surface,
sures, for each Month in 1845.
July. August.
Times. | Press. || Times.| Press.
1b. Ib.
9 3-0 35 26-4
5 2-2 21 10-8
31 12-2 21 13-5
50 19-0 15 9-7
59 22-7 14 3-1
10 29 2 0-8
lle 6:8 6 0-8
0-7 4 0-4
4 0-9 4 0:5
. 1 0-1
1 0-4 3 0-3
7 2-2 2 0:3
1 0-3 1 0-1
15 4:5 5 0-9
3 2-0
15 21-8 1-7
3 1-5 3.3
26 19-6 32 17-4
18 24-1 24 19-8
52 | 42.4 43 20-1
23 19-9 16 7-8
47 23-4 41 11-9
15 3:8 16 5-2
15 5-0 29 9-6
8 1-4 9 | 3-0
10 3-8 21 12-6
2 0-5 7 1-5
12 3-0 26 16-3
3 0-6 14 10-7
11 3-8 33 18-1
6 1-7 16 9-7
September.
Times. | Press.
Ib.
10 10-0
1 0-5
5 1-6
12 4-1
29 6:0
3 0-6
13 1-7
10 1:5
§ 1-2
2 0:2
4 0-4
4 0:5
10 3-5
4 1-6
11 2-9
3 2-0
48 17-3
37 | 19-7
74 34-1
33 22-2
22 13-1
5 0-5
16 5-2
8 2:8
1 1-2
15 7-4
7 7:8
12 5:5
2 1-1
MAG. AND MET. OBS. 1845 anp 1846.
October. November. December.
Times. | Press. || Times. | Press. || Times. | Press.
Ib. 1b. Ib.
3 0-8 3 0-4 5 3-5
3 1-2 1 0-1
25 9.5 6 1-7
10 5-7 1 0-4
6:3 1 0-1
7-2 1 0-2
4 3-9
1 0-2
3 0-3
1 0-1
3 1-0
3 2-5 0-9
10 2-2 2-5 1 0-1
2 0-4 4-4
10 2-4 14 11-3
11 2-4 13 9-0
15 2-8 35 18-5 5 2:0
11 4-5 35 36-7 12 | 10-5
56 26-5 68 49-2 66 70:1
67 45-3 37 39-9 89 85-2
147 | 109-6 66 63-7 102 | 101-3
64 62-6 40 39-7 30 37-4
39 30-8 19 14-0 24 28-0
12 13-3 4 3-4 18 23-0
33 31-1 4 2-1 44 67-6
15-4 1 0-4 2] 29-9
12-4 4 1-5 22 35+1
4 2-8 6 14.0
4 5-7 4 0-4 20 35:5
Dia) 1O:% || gat maa.
0-3 6 1-7 14 17-0
4 1-8 4 0:8 13 17-9
Wind blowing
from
62 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
TABLE XXXIV.—Number of Times which the Wind blew from each Point of the Compass —
with the sums of the Pres-
Number of times which the Wind blew from each
bt et
wm:
.
Ce:
.
.
—_— =
—
RONNDOROCONNMOOCOWNWNANARUAY
—r
CHUN NH WWOTINOVAKR NWA RW HE &
—
PWN HWW We aDw:
PPP WROATNTOOWHE Oe:
WHWOWRIMAARAWORBRSOUNWAKRH HWE bd
Ke DN MNDOWNTIHDOWONATWE EE NED:
BENE NWUAWOKDHAhUUAwWAwWHED:
DWE RE ROAWANTAWwHNkhNNe:?
BP nwmnwnanwewwapwnhawnNeNwnNnwD:
SBOoOnNoankhwnre ©
—
2
_————_— | —— | ———_|——_
235 | 292 | 66 109
fom
1b. Tb. a le 5 lb.
ee Oy ved ; ooh | ge
ira 0-4
SSS Oo a C0 Ss BS 00s AS G9 FS OOO OE OSs
BED AhRORDANTA BRE AONE WWHHw:
KP OOONOUKR WN ©
—
156-1 |118-2 ]170-5 |130-9 |129-2 | 32-0 -9 | 15-0 | 11-4 | 55-1 | 63-3
PRESSURE AND DIRECTION OF THE WIND, 1845. 63
with a Pressure of one-tenth of a pound or upwards upon a square foot of surface, together
sures for each Hour in 1845.
Point of the Compass at each Hour in 1845.
Ss SW SW Ww Ww NW NW N aan
S. | by |SSw.| by | SW.| by |WSW/ by | W. | by [WNW by | NW.| by |NNW)] by :
W. 8. Vive 8. ¢ W. N Wve
h.
6 9 21 16 36 14 10 6 1 1 2 2 6 4 9 3 12
14 6 14 15 32 10 13 5) 9 1 7 2 8 3 5 3 13
9 6 7/ 19 30 16 7 4. 13 4 3 2 4 4 6 4 14
6 10 21 14 30 17 16 6 8 1 1 1 6 3 6 4 15
5 10 20 22 33 9 16 2 15 3 5 1 9 3 7 2 16
6 6 19 14 26 7h 8 3) 15 9 4 2 6 8 7 2 17
9 7 H 16 31 13 15 4 15 3 3 1 5 11 8 3 18
12 4 20 21 34 11 16 7 15 3 3 1 3 11 7 3 19
4 2 28 24 36 11 17 4 6 5) 10 2 4 8 8 5 20
10 8 21 12 32 16 12 il 10 2 9 1 8 11 5) 4 21
6 10 26 17 25 18 15 7 8 T- 10 1 12 6 8 2 22
9 5 27 12 39 11 8 6 13 4 11 4 12 6 8 3 23
9 11 24 20 32 14 12 6 11 7 6 3 15 3 a 8 0
8 7 24 12 41 12 22 4 10 5 HL | coc 13 6 7 14 1
6 7 19 24 37 19 7f 6 10 5 11 1 8 3 11 15 2
6 9 24 18 35 17 6 4 8 4 8 3 19 8 5 By 3
6 8 26 18 33 17 12 5 8 4 10 3 8 3 11 4 4
11 4 23 21 28 12 14 8 12 4 TON sis 8 Silemeo 4 5
11 8 29 18 29 15 18 3 3 5 4 4 Uh 3 8 3 6
8 8 23 23 34 10 17 7 7 5 8 1 6 5 8 3 7.
4 4 31 16 39 8 13 1 6 6 7h 1 3 5 8 9 8
9 9 33 15 27 11 9 4 5 6 2 3 3 4 6 9 9
a 5 23 15 32 9 15 3 6 2 6 2 8 4 2 7 10
a 5 14 16 35 12 15 3 Sf oss 4. 2 4 6 3 4 11
188 |-168 | 548 | 418 | 786 | 319 | 313 | 121 | 219 | 96 | 152 | 43 | 185 | 136 | 165 | 123 || Sums
each Point of the Compass at each Hour in 1845
lb. Ib. 1b. 1b. Tb. lb. lb. lb. 1b. 1b. 1b. Ib. lb. Ib. 1b. Ib. h.
4.9} 66) 9-9] 19-3) 26-4] 11-3) 3-6] 4.5 0-1} 1-2 0-6| 3-1 4:6| 2-7) 7-3) 44 12
3:8; 49} 9-9] 16-9} 25-4) 12-5] 8-2] 1-3 9-3| 0-3 2:5) 2-6 3-3} 2-1] 3-9] 1-3 13
5-4] 3-3] 9-6] 17-6] 21-6] 12-7| 2-4] 0-9 9-2) 2-5 0-4] 1-3 0:9) 2-9) 2-7) 4.7 14
5-5| 7-5] 11-8] 12-4| 18-9} 21-8) 7-7] 2-7 | 11-5] 0-8 0-4] 0-2 4-9} 1:0) 6-5] 3-4 15
5-6| 9-2] 7-2] 16-2} 28-9} 11-0] 6-2] 0-9 9-5) 1-8 1-7] 0-1 6-3} 4-7] 5-5} 0-4 16
8-6| 7-6| 145) 9-2} 25-7) 14-8] 4-4] 0-9 | 10-2] 7-6 3-4] 1-4 2:9) 6-9) 4-3; 1-1 7/
5-7| 40] 14-7) 10-5] 22-4] 18-6} 11-7] 0-9 | 10-8] 1-7 2-9] 0-7 2-4} 11-2] 5-9] 1-8 18
10-0) 2-0} 14:0} 12-5} 23-4] 9-4) 12-4] 1-2 | 12-8] 2.3 1-0} 1-6 0-7) 12:9} 4-1 1-8 19
1-9} 0-4] 15-3) 19-1]) 32-8} 11-6} 21-1] 2-2 2-5| 8-3 7-6| 2-2 2:4) 11-6] 6-4} 5-1 20
5-6| 3-5] 19-8] 15-4] 28-7] 16-3} 7-8] 14-4 4-9} 0:5 8-5] 0-1 | 11-1} 16-6) 4-5] 3.3 21
5-4} 2-7] 18-9) 24-9} 26-9] 17-9} 14-0] 12-9 2-6| 7:8 6-1] 0-3 | 15:5] 5-8} 9-4) 7-2|| 929
3-9| 3-6] 30-1) 17-8) 37-2} 8-3| 6-8] 3-4 | 17-4110-5 | 14:0] 5-7 7-4) 2-3} 9-5) 6-0]| 923
4-7| 6-0| 27-9} 24-0} 31-5] 14-3} 7-2] 1-5 | 17-6} 3-8 2:8) 4.4 9-2} 6-0] 10-5] 7.2 0
7:0} 6-3} 22-3] 15-3} 42-5] 11-4] 17-0} 8-2 | 12-8] 7-3 7:2 | oes 4-7| 10-1 2-8] 14-0 1
2-1) 7-6| 19-9) 20-3) 40-5] 12-8) 6-8] 4-1 | 10-0] 7-3 | 12:8} 0-2 4-7| 7-6| 3-7] 13-8 2
2-:7| 6-1] 29-0} 10-0} 29-6} 20-0} 2-6] 1-2 6-3} 4-7 8-9} 8-5 | 21-8} 2-8] 2-4) 6.3 3
1-9; 2-5] 18-8} 32-2] 18-9} 23-0] 6-6] 3-0 5-8] 2-5 6:9) 2-6 4:3/ 3-2} 7-3] 2-8 4
4:0} 5-0} 25-2} 22-1) 17-5] 9-9] 9-2] 3-8 9-4| 4.2 48) --- 6-2} 10:0} 3-5] 2-1 5
4:7| 3-1] 26-5| 14-4| 21-9] 9-0} 8-4] 2-0 4-5| 6-4 3-4} 1-0 6-1} 1-0} 4-6] 1-6 6
4.2} 9-1) 17-7| 26-9) 16-9} 5-3) 4-6] 4-2 2-2} 5-6 5-6] 1-2 1:3) 2-8] 3-6] 1-8 7
4-5| 1-3] 26-2) 14-6] 30-9) 5-5| 3-8] 0-1 0-9| 3-9 7-2) 0-2 0-5] 2:9) 3-7] 83 8
8-5| 5-4] 31-4] 16-8] 23-2} 8-2) 3-0] 0-7 1-6} 6-5 0-8| 1-9 0-4} 1-7} 6-6] 6-2 9
8-3] 1-2} 17-6] 17-2} 21-7| 16-0] 5-5} 3-6 2-1} 0-2 3-3] 0:5 4-7; 1-6) 0:5} 7-21 10
4-6| 7-7| 5-2} 13-8) 40-2] 8-6} 10-0} 2-0 2:9) «+ 3-8} 0-9 DOs dS | 2-9), Be7, 11
123-5 |116-6 |443-4 |419-4 |653-6 |310-2 |191-0 | 80-6 |176-9 | 97-7 |116-6| 40-7 |128-7 |134-2 |122-1 |115-5 || Sums
64
TABLE XXXV.—Sums of the Pressures of the Wind in Table XXXIII., resolved into the Four
Cardinal Points of the Compass, together with the Value and Direction of the Resultant, for each
Month, for each of the Astronomical Quarters, and for the Year 1845.
Period
1845.
January
February
March
April
May
June
July
August
September
October
November
December
Astron. Qrs.
‘Winter
Spring
Summer
Autumn
The Year.
TABLE XXXVI.—Sums of the Pressures of Wind in Table XX XTV., resolved into the four Cardinal
Points of the Compass, with the Value and Direction of the Resultant, for each Hour in 1845.
KP OOONAUKH WHF ©
——
RESULTS OF MAKERSTOUN OBSERVATIONS, 1845.
Sums of Pressures resolved into
a E. Ss. W.
lb. 1b. lb. lb.
18-0 13-6 223-6 125-7
103-5 16-6 124-2 140-1
158-6 35-6 166-1 281-4
208-4 80-5 118-9 69-7
248-0 144-9 70-9 110-3
51-1 20-2 198-5 164-0
62-5 46-3 120-4 107-5
113-4 18-2 62-8 106-6
40-6 14-6 84-2 93-7
39-3 27-7 204-3 269-4
6-1 11-5 231-5 150-2
132-5 1-0 255-6 431-3
156-6 26-1 710-7 707-2
470-5 132-7 409-2 491-2
361-6 211-4 389-8 381-8
193-3 60-5 351-3 469-7
1182-0 430-7 1861-0 2049-9
Resultant.
Sums.
84-2
101-9
90-3
292-7
264-7
447-6
878-0
363-7
172-7
438-6
1755-8
Means with reference to
Whole No. No. of Obs., Directions.
of Obs. Wind blowing.
1b. Ib. °
0°36 0-60 Ss. 9W.
0-22 0-28 W. 9S.
0-39 0-46 Wee2'83
0-15 0-21 N87 RE
0-28 0-32 N. 11 E.
0-34 0-45 S. 44 W.
0-13 0-18 W. 43S.
0-16 0-21 W. 29 N.
0-15 0-22 W. 29S.
0-45 0-51 W. 345.
0-44 0-70 S. FW
0-69 0-84 W.16S8.
0-46 0-68 W. 39S.
0-20 0-26 W, 10°N.
0-09 0-11 W. 9S.
0-24 0:30 W. 215.
0-23 0-31 W. 23S.
Sums of Pressures resolved into
N KE. Ss W.
lb. lb. Ib. lb.
33-0 9-0 69-3 64-6
33-8 9-5 66-2 70-9
29-1 8-7 61-3 60-4
32-9 10-0 67-4 74-3
32-7 7:8 69-6 72-0
34:0 7:3 69-2 77-4
39-8 9-8 67-5 81-6
39-6 11-4 63-7 76-8
56-0 14-4 75-9 102-1
71-7 18-1 78-9 104-7
79-7 23-1 88-3 116-2
77-4 28-9 90-9 121-5
73-7 29-8 95-7 110-4
70-1 26-7 98-2 120-8
68-6 32-0 90-9 110-7
74:0 31-9 84-0 104-3
61-7 35-6 84-3 92-5
55:5 29.4 80-2 85-4
45.4 20:5 73:8 73-2
36-6 16-9 74-4 66:5
36-0 15-7 78-0 65-0
35-9 12:0 84:9 64-3
35:5 10-4 75-9 65-2
30-3 11-2 71-4 70-2 |i
Resultant.
Means with reference to
Sums. Whole No. | No. of Obs., Directions
of Obs. Wind blowing.
1b. Ib. Ib. be!
66-4 0-21 0-35 W. 338
69-4 0-22 0-37 W. 288
60-9 0-19 0-32 W. 328
73-0 0-23 0-37 W. 288
74:0 0-24 0-36 W. 30S
78-4 0-25 0-40 W. 278
77-0 0-25 0-36 W. 21S
69-7 0-22 0-31 W. 20S.
89-9 0-29 0-38 Wiese:
86-9 0-28 0-35 W: 45'S.
93-5 0-30 0-35 We “ois:
93-6 0-30 0-34 W. 8S.
83-5 0-27 0-29 W.15S.
98-2 0-31 0-34 W.178S.
81-8 0-26 0-29 W.168.
73-1 0-23 0-27 W. 85S.
61-2 0-20 0-22 W. 228.
61-2 0-20 0-23 W. 248.
59-9 0-19 0-24 W. 28S.
62-4 0:20 0-25 W. 298.
64-8 0-21 0-28 W. 408.
71-7 0-23 0-34 W. 43 S.
68-1 0-22 0-35 W. 36S.
73:3 0-23 0-40 W. 35S.
EXTENT OF CLOUDED Sky, 1845. 65
TABLE XXXVII.—Differences of the Directions of Motions of the Lower and Upper Currents of Air,
as deduced from the Comparisons of the Direction of the Wind and the Motions of the Clouds.
Quadrant N. to E. Quadrant E. to 8. Quadrant 8S. to W. Quadrant W. to N.
Currents. ‘
No. of seek Mean No. of me Mean No. of ae bt Mean No. of ree ae Mean
Results. Motion. Result. || Results. Motion. Result. || Results. Moon Result. || Results. Motion! Result.
Bs aici | 42 | +14 to, | 19 162 | +25 47 Wy 416
aaa” S40) een ee 2 Fee On Alert OD tae | ig lane ig
a a 0 1 0 3 0 9 0
: 2 | 24) gaa 12 | +24 170 *| 4-41 41 | 429
a BEHRAAS )|\ oh |g 4.4) 4) |} ars Pts) i) ore) a4 | 36 So pesos || Big
on 1 0 0 0 L *¥3 0 3 0
, 15> |) eor 14) eS Bie | 44193 23 | 424
eg memes) | ae Gir) 7 \P_39 | oe, |b 30) 21%] +1048 93 |85e7| 24
5 4 0 3 0 10 0 6 0
. . | 8 | 456 Ae al haeeee le 40 | +49 16 | +32
aeons J eee ale... 4)... | 85 | 898) oa | 4364 4. }0287 | fae
lo 0 1 0 1 0 1 0
s ; ). Be Vea 5 | +69 a1) 439 21 | +25
oe 6 . ae] = 9 DD (PA Iesonsel) Abe c= 898) 415 §. | 399.) hig
0 0 0 0 1 0 1 0
TABLE XXXVIII.—Daily and Weekly Means of the Estimated Extent of Clouded Sky, the whole
Sky covered being 10, for 1845.
i 7-2 3:5 9.2 6-0 Bea) | ize) als 99 9-2 9-2 6-1 77 5-9
2 6:5-—|—[3-3] | PeDipele-5-4 6-7 9-3 5-0 9-0 8-6 9-4 | [4.6] | 6-0
3 8-5 3-3 9-6 3-7 a 8-7 980 [Sa] | S81 | 40-0 5 4.6
4 6-1 4-1 Sue) 10:0:'| [7:6] | 065 3-9 8-1 | 10-0 9-6 1-0 5:8
Sal [7-6] | 3-1 6:3 6-1 6-0 9-5 3-7 8-1 Zi iso) |) 24 4:7
6 7-5 1-6 Oh [6-1] |, 9-7 7 it Wied (Cs) eel ak) Fo sO 7-2 5-9
7 7-7 78 9-8 6-4 | 10-0 8-3 8 8-1 | [8-6] | 9-9 7-4 | [5-6]
8 6-2 8-9 9-9 6-9 OM, Mise te ee-8 5:8 8-3 7-2 9.4 8.0
9 a1 [7:9], yale: | 323 9-0 8-2 8-6 9-7 9-2 7-Be | t[7-3toles 19
10 8-9 9-8 9.4 9-9 8-8 9-0 BS | [8-6], |, 9:0 8-9 9-6 7-1
. MAG. AND MET. OBS. 1845 anp 1846. R
66 RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1845.
TABLE XXXIX.—Mean Extent of Clouded Sky, with reference to the Moon’s Age and Declination,
as deduced from the Six Hourly Observations nearest Midnight, for the years 1844 and 1845.
i ii i ewe (ik ea ===. UC!
Extent of Extent of After Extent of After Extent of
Moon’s Clouded Sky. Moon’s Clouded Sky. Moon Clouded Sky. Moon Clouded Sky.
Age. Age. farthest farthest
North. North.
1844, 1845. 1844. 1845. 1844. 1845. 1844,
Day. Day. Day. Day.
15 6-28 6-62 0 5-99 6:55 0 7-49 6-22 14 7-00
16 8-30 7-32 1 6-63 5-29 1 7-24 6-61 15 6-65
17 6-37 6-87 2 6-81 6-42 2 7:64 5-47 16 5-63
18 7-26 8-07 3 7-47 6-14 3 6:57 6-75 17 5-76
19 7-34 5-83 4 6-03 7-65 4 6-43 5-96 18 7-20
20 7-51 8-28 5) 6-74 4-38 5 6-61 6-36 19 6-88
21 5-94 7-06 6 7-59 6-82 6 6-53 5-64 20 6-80
22 8-02 6-17 7 6-45 7-11 if 6-86 7-05 21 5-34
23 6-15 5:04 8 7-60 5-61 8 6-33 6-96 22 5-11
24 4.74 6-39 9 6:57 7-22 9 6-09 6-62 23 6-10
25 5-74 5-52 10 5-74 8-36 10 5-79 6-54 24 6-61
26 7:66 5-48 ii! 6-16 4-20) }\ Id 5-90 6-66 25 7-24
27 6-42 6-91 12 5-25 7-52) 12 7-52 6-48 26 6-92
28 5:04 6-74 13 6-93 6-63 13 7-47 7-22 27 6-97
29 6-14 7-01 14 5-51 Gh
6-1 6-7
6-6 6:8
7-1 7-1
8-0 77
8-0 7-1
7-9 7-1
7-3 7:7
7:7 : 7:8 .
7:3 6-9 6-9 7-6 9-0 8-0 8-1 7-5 8-3 8-3 6-4 6-5
76 6-9 6-6 7:8 9-3 8-9 8-2 7:8 8:5 8-3 7-0 7-2
7-6 6-0 7:0 8-0 9-4 8-6 8-1 8-1 8-9 7:9 7-0 7-1
7:8 6-7 6:8 7-1 9-2 8-1 8-4 8-5 8-8 7-4 6-7 7-5
7:7 2 6-9 6-7 9-3 8-2 8-2 8-7 8-2 77 7-1 7:5
7-7 7:7 6-9 6-5 9-4 8-0 8-5 8-7 8-3 78 7:8 6-7
8-0 '
KSB OomaonranAwnyore ©
—
QUANTITY OF Ratn, 1845.
67
TABLE XLI.—Hourly Means of the Estimated Extent of Clouded Sky for each of the Astronomical
Quarters, and for the Year 1845.
onmnatawnrA ww KH CO:
—
= ©
Nov.
Dec.
Jan.
7-4
7-4
7:3
7:5
7:2
6-2
6-0
5:5
6-2
6:0
5:6
5-7
Feb.
March.
April.
Aug.
Sept.
Oct.
8-2
8-3
7-9
8:0
8:0
7:9
7-6
7-4
7:3
6-6
6-8
6:9
TABLE XLII.—Quantity of Rain for each Month of 1845, by the Observatory, Garden,
and Greenhouse Gauges.
January
February
March
April
August
September
October
November
December
Observatory
Gauge.
Garden
Gauge.
Greenhouse
Gauge.
Sums
in.
68 RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1846.
TABLE XLIII.—Daily and Weekly Means of the Temperature of the Air, as deduced from the
Readings of the Dry Bulb Thermometer, for 1846.
Jan. Feb. March. | April. May. June. July. Aug. Sept. Oct. Nov. Dec.
1 || 36-7 | [44-3] | [48-3]] 44.2 | 50-2 | 61-7 | 57-9 | 63-5 | 52-4 52-5 [47-1] | 35-4
2 | 31-4 | 41.6 | 47-5 | 469 | 53-3 | 65-8 | 62-0 | [62-8]| 57-5 | 47-5 | 501 | 20-4
3 | 39-1 | 461 | 47-9 | 40-1 | [48-2]] 66-9 | 60-9 | 66-3 | 59-4 | 47-2 | 51-2 | 29.0
4 || [38-9] | 37-6 | 469 | 35-0 | 43-0 | 686 | 61-8 | 64-1 | 61-6 | [51-1]| 51-5 | 27-7
5 | 33-9 | 39-4 | 41-3 | [40-2]| 49-3 | 68-2 | [57.9] | 62:7 | 60-4 | 566 | 485 | 37.7
6
7
8
9
45.2 | 39-9 | 385 | 39-0 | 49-0 | 67-1 | 55-1 | 64-0 | [59-9]| 53-7 | 49-1 | [34-7]
47-1 | 41-3 | 40-3 | 39-7 | 48-3 | [64-6] | 549 | 61-0 | 63-1 | 49-4 | 46-7 | 36-0
48-1 | [37-0] | [41-2]| 40-5 | 51-1 | 59-7 | 529 | 65-4 | 59-7 | 49-1 | [42.2]| 381
44.0 | 33-0 | 389 | 39-6 | 51-7 | 61-8 | 54-1 | [61-0]| 55-4 | 525 | 38:5 | 39.5
10 | 45-6 | 29:8 | 45-1 | 424 | [50-9]] 621 | 586 | 589 | 51-6 | 55-8 | 342 | 35-5
11 || [41-0] | 38-7 | 433 | 429 | 51-2 | 59-2 | 56-5 | 57-9 | 61-5 | [48-9] | 365 | 28-8
i2 | 36-1 | 38-7 | 46-1 | [45-0] | 53-1 | 60-7 | [59-5]| 58-7 | 59-8 | 49:8 | 43.3 | 90.7
13 || 33-2 | 39-8 | 47-0 | 51-2 | 49-9 | 641 | 64.0 | 59-9 | [57-4]| 43-5 | 43-6 | [30-0]
14 | 39:0 | 42-4 | 45-9 | 49-7 | 49-2 | [63-4] | 621 | 55-2 | 57-6.| 42-8 | 40.6 | 25-7
15 || 40-2 | [41-8] | [40-8]| 44-5 | 49-0 | 63-4 | 62.0 | 57-1 | 57-7 | 46-7 | [43.6] | 29-4
i6 || 322 | 448 | 427 | 481 | 47-5 | 649 | 60-6 | [57-9] | 56-5 | 46-1 | 40-1 | 31-0
17 | 38-6 | 426 | 33-6 | 46-6 | [49-7]] 68-2 | 57-4 | 59-8 | 57-2 | 51-1 | 468 | 26-8
18 || [39-3] | 42-4 | 29-3 | 44.0 | 489 | 67-8 | 54.5 | 57-9 | 50-2 | [48-4]| 47-4 | 98-5
i9 | 41-0 | 41-7 | 21-3 | [43-6] | 51-4 | 68-3 | [57-8] | 57-6 | 528 | 51-0 | 46.4 | 41-8
20 || 43-9 | 40-8 | 28-2 | 42.3 | 52-0 | 54-7 | 57-5 | 57-3 | [52-9]| 48-5 | 48.6 | [33.7]
21 39:8 | 47-6 | 32-8 | 39-3 | 51-2 | [61-1]| 584 | 60-5 | 53-2 | 469 | 44.0 | 38-1
22 || 42-7 | [46-6] | [33-0] | 41-3 | 52-9 | 65-9 | 583 | 60-5 | 48-5 | 47-1 | [44-5] | 33-7
23 | 40-3 | 50-1 | 37-1 | 43-0 | 52:9 | 57-5 | 59-7 | [56-9]| 55-7 | 42-8 | 39.2 | 33.4
a4 || 39-3 | 51-3 | 402 | 43-7 | [52-7] | 525 | 57-3 | 548 | 55-1 | 43-6 | 46-3 | 266
25 || [43-1]| 47-9 | 38-6 | 45-8 | 56-0 | 52-8 | 57-8 | 53-5 | 57-1 | [42-7]| 423 | 29.0
296 || 47-2 | 481 | 38-7 | [42.6]| 526 | 53-0 | [60-6]| 54-9 | 53-0 | 38-1 | 43-8 | 28-8
27 || 45-5 | 50-7 | 41-4 | 40-4 | 50-8 | 57-8 | 64-5 | 55-5 | [52-1]| 38-3 | 39-5 | [32.2]
28 | 43-5 | 486 | 38-6 | 39.9 | 51-9 | [56-2] | 65-5 | 57-8 | 45-7 | 46-3 | 31-6 | 36-6
TABLE XLIV.—Mean Temperature of the Air at the Observation Hours for each Month, for each
Astronomical Quarter, and for the Year 1846.
Makerstoun
Mean Time.
January
February
March
April
May
June
July
August
September
October
November
December
Noy., Dec., Jan.,
Feb., Mar., Apr.,
May, June, July,
Aug., Sept., Oct.,
The Year
TEMPERATURE OF THE Arr, 1846.
69
TABLE XLV.—Diurnal Ranges of Temperature for each Day in 1846, as deduced from the
Observations of the Maximum and Minimum Register Thermometers.
OCOOowIOrPwnore
March.
9-8
7:8
11-1
2-9
14-7
TABLE XLVI.—Extremes of Temperature for each Month in 1846, from the Register Thermometers ;
Extremes of Daily Mean Temperature for each Month, deduced from the Daily Observations ;
and Extreme Diurnal Ranges for each Month, from the Register Thermometers.
Extreme Temperatures.
Extremes of Daily Mean Temperature.
Extreme Diurnal Ranges.
Highest
3 Lowest.
Range.
Highest. Lowest. Range.| Mean.
Greatest.
ol
58
53
61
71
80
80
65
MAG. AND MET. OBS.
85-4
74:3
55:8
45-8
ad.
“4
0
7
2
0)
3)
3
5
26-0
36:5
48-3
34-1
37:5
48-4
35:8
43:3
41-1
40-0
32:8
35-2
1845 anv 1846.
49-3 31-4] 17-9 | 40-3
51-3 29:8} 21:5 | 40-5
47-9 21:3] 26-6 | 34-6
51-2 35:0} 16-2 | 43-1
57:6 43:0| 14:6 | 50-3
68-6 52:5| 16-1 | 60-5
65-5 52-9| 12-6 | 59.2
66:3 53:5] 12-8 | 59-9
63-1 | 2 45-:7| 17-4 | 54-4
56-6 38-1} 18-5 | 47-3
51:5 29:4} 22-1 | 40-4
20-4} 21-4) 31-1
19-2
17-1
27-1
24-9
31-4
36-5 |
35-8
32-9
28-6
27:5
18-1
31-7
70 RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1846.
TABLE XLVII.—Daily and Weekly Means of the Temperature of Evaporation, as deduced from the
Readings of the Wet Bulb Thermometer, in 1846.
Jan. Feb. March. | April. May. June. July. Aug. Sept. Oct. Nov. Dee.
1 | 337 | [42-2] | [45-9)| 428 | 481 | 545 | 55.0 | 61-5 | 48-9 | 50-4 [45-5] | 34.2
2 || 294 | 39.0 | 44.2 | 44.7 | 47-6 | 59-8 | 56-9 | [60-7] | 54-6 | 45-8 | 47-5 | 920.9
3 || 37-7 | 441 | 464 | 38-1 | [45-4]] 596 | 583 | 62-9 | 566 | 44.6 | 49.4 | 97.9
4 || [37-0] | 36-1 | 44.0 | 33-6 | 41-3 | 60-6 | 582 | 60-5 | 59-1 | [48-8] | 49.6 | 266
5 || 328 | 36-9 | 39-2 | [384]| 47-4 | 59-4 | [54-4]| 606 | 58-0 | 541 | 47-4 | 36.0
6
"|
8
9
43-7 | 38-3 | 37-2 | 366 | 46-7 | 57-7 | 53-3 | 60-2 | [57-2] | 50-8 | 47-1 | [33.4]
44-8 | 38-4 | 37-8 | 37-8 | 44.2 | [58-4]| 494 | 60-6 | 60-1 | 46.9 | 45-2 | 34.0
46-3 | [35-1] | [39-2]| 39-5 | 45-8 | 57-2 | 50-5 | 63-8 | 57-1 | 47-2 | [41-2]| 37-4
42.2 | 31:7 | 373 | 37-4 | 47-4 | 57-7 | 581 | [58-3]| 523 | S5T-2 | Sye4 sea
10 || 43-4 | 29-0 | 42.2 | 39.8 | [46-5]|] 58-1 | 54-7 | 560 | 48-4 63:5 | 33-7 | 33-1
25 || [42-1] | 45-7 | 37-1 | 441 | 51-7 | 49-6 | 53-5 | 50-7 | 54-5 | [41-1] | 41-9 | 27.5
26 || 46.0 | 45-6 | 37-1 | [40-1] | 46-7 | 50-5 | [57-4]| 521 | 51-9 | 37-4 | 42.0 | 28.1
27 || 44.0 | 481 | 384 | 366 | 46.4 | 53-8 | 62-0 | 52-4 | [50-9] | 37-8 | 38-1 | [31-4]
28 || 41-5 | 46-9 | 36-7 | 36-4 | 45-7 | [52-8]] 62.0 | 55-2 | 45-4 | 447 | 304 | 35.8
29 42-7 [38-3] | 39-9 50-8 54-4 57:3 56-0 48-9 40-6 | [32-1] | 37-2
30 43-4 37-7 41-6 51-9 53-8 60-1 [53-5] | 50-3 38-8 28-0 34-4
31 48-0 37:3 [53-7] 58-4 54-0 47-3 39-9
TABLE XLVIII.—Mean Temperature of Evaporation at the Observation Hours for each Month,
for each Astronomical Quarter, and for the Year 1846.
Makerstoun
Mean Time.
January
February
March
April
May
June
July
August
September
October
November
December
Noy., Dec., Jan.,
Feb., Mar., Apr.,
May, June, July,
Aug., Sept., Oct.,
The Year '
PRESSURE OF AQUEOUS VAPoUR, 1846. 71
TABLE XLIX.—Daily and Weekly Means of the Pressure of Aqueous Vapour, in inches of
Mercury, for the Year 1846, as deduced from Tables XLITI. and XLVII.
Bee. Jan. Feb. March. | April. May. June. July. Aug. Sept. Oct. Nov. Dec.
in. in. in. in. in. in. in. in. in. in. in. in.
1 0-178 | [0-264] | [0-297] 0-275 0-326 | 0-354 | 0-409 | 0-528 0-321 0-355 | [0-306]| 0-202
2 -162 +226 -269 -286 -280 +453 -415 |[ -512] -404 -304 314 -128
3 +228 -283 +313 +225 |[ -290] -434 -465 -538 -436 -281 -346 -161
4 [ -222) +214 -271 -195 -258 444 453 492 -480 |[ -333] +347 -153
5 193 209 -233 |[ -231] -321 -414 |[ -398] -010 -462 -401 -330 “211
6 +284 -231 -225 -208 307 -380 -398 -484 |[ -447] -350 -316 |[ -197]
"7 -286 -217 -217 +224 -260 |[ -428] -304 -530 -491 -308 -300 -192
8 309 |[ -203]|[ -235] +249 +264 -448 +353 575 -446 -318 | [ -269] -233
9 -265 -182 +222 -216 +294 -439 -404 |[ -469] -369 374 -237 +235
10 273 171 +252 -234 |[ -282] -446 394 -425 -318 +395 -206 -180
11 [ -249] -211 +259 -265 -276 +375 +346 -405 -461 |[ -318] +227 +142
12 +213 -219 27 fans ee AC Al -290 -400 |[ -424] -393 -461 “331 -275 -161
13 -198 +220 +256 +329 -309 -427 -496 -454 |[ -421] +225 -271
i
=
Or
> OO
=]
TABLE L.—Pressure of Aqueous Vapour, with reference to the Moon’s Age and Declination,
for 1846.
Mean Mean After Mean After Mean
Moon’s | Pressure | Moon’s| Pressure || Moon | Pressure | Moon | Pressure
Age. of Age. of farthest of farthest of
Vapour. Vapour. || North. | Vapour. | North. | Vapour.
Day. in. Day in. Day. in. Day. in.
15 0-333 0 0-316 0 0-311 14 0-314
16 +327 1 -301 1 -313 15 -307
Li +320 2 +292 2 -298 16 -306
18 +319 3 -298 3 -286 17 313
19 “315 4 -317 4 283 18 337
20 -305 5) -312 5 301 19 -326
21 +313 6 -317 6 311 20 313
22 +297 7 317 7 325 21 317
23 +298 8 +313 8 306 22 323
24 -301 9 -315 9 308 23 +329
25 -317 10 +315 10 -307 24 -321
26 -305 11 313 | il -321 25 -296
27 +323 12 -299 12 -326 26 +302
28 +318 13 | -304 13 -318 27 -309
29 +329 14 “315
12
RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1846.
TABLE LI.—Mean Pressure of Aqueous Vapour at the Observation Hours for each Month, for
Makerstoun
Mean Time.
January
February
March
April
May
June
July
August
September
October
November
December
Noy., Dec., Jan.,
Feb., Mar., Apr.,
May, June, July,
Aug., Sept., Oct.,
The Year
Feb.
March.
[0-851]| [0
April.
-843]| 0-899
-784 | -851
214,
in.
0-242
-248
+228
-254
-297
-421
-427
-460
-418
-315
+259
Saturation being = 1.
each Astronomical Quarter, and for the Year 1846.
Aug. Sept.
0-793
-840
-850
-870
872
854]
0-898
[
Oct.
0-
872 | [0-898]
886
-829
852]
859
827
.842
-878
919
-868
871]
.892
-753
TABLE LII.—Mean Relative Humidity of the Air for each Week-Day and Week in 1846,
Nov.
837
-889
RELATIVE HUMIDITY OF THE AIR, 1846. fo
TABLE LIII.—Mean Relative Humidity of the Air, Saturation being = 1, with reference to the
Moon’s Age and Declination, for 1846.
After M After
Moon R are Moon
farthest |_**°!@tve | farthest
Mean
Relative
Mean
Relative Relative
Humidity. Humidity. |) 17 o,th, | Humidity. Humidity.
D
0-847
-856
878
877
-866
-865
-850
835
-867 -840
-870 ; 849
-854 : 842
833 . -836
847 . 845
823 : -838
864
0-844
-830
825
814
-848
+833
-863
851
OHOTIA ABW of
TABLE LIV.—Mean Relative Humidity at the Observation Hours for each Month, for each
Astronomical Quarter, and for the Year 1846.
Makerstoun r : ¢ ,
Mean Time. i : . : : 3h, 5h, 7h, gh,
January : 0-894 | 0-890 | 0-888 | 0-895
February : : : : . 778 823 841 -862
March : : : : . ‘707 -765 -848 -885
April : : : : : -763 804 -871 -924
May . . : . : -644 -690 ‘770 -838
June . : : : . 588 -616 -730 -848
July : . 792 : : ‘750 -783 -849 -898
August . : . . . -729 -760 -862 -929
September . : . . . -768 -798 -890 935
October : : . . . -808 871 -907 +925
November : . “86 . . 843 896 -899 -914
December . . . : . 873 903 -910 -919
Noy., Dec., Jan., : : . : : -870 -396 -899 -909
Feb., Mar., Apr., ; ; 749 | .797 | 853 | -390
May, June July, . . : : : ‘661 -696 -783 -861
Aug., Sept., Oct., ; 768 | -810 | -886 | -930
The Year, : . : : . -762 -800 *855 898
MAG. AND MET. OBS. 1845 ann 1846. T
|
|
|
|
|
|
74
RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1846.
TABLE LV.—Daily and Weekly Means of the Height of the Barometer in 1846.
ee Jan. Feb. March. | April. May. June. July. Aug. Sept. Oct. Nov. Dec.
in. in. in. in. in. in. in. in. in. in. in. in.
1 29-394 |[29-336]|[29-259]| 29-046 | 29-955 | 29-945 | 29-490 | 29-724 | 30-089 | 29-608 [29-762], 29-425
2 30-041 | 29-484 | 29.397 | 28-913 | 29-860 | 29-962 | 29-615 [29-783] 30-043 | 29-486 | 29-599 | 29-318 |
3 29-948 | 29-296 | 29-169 | 29.616 |[29-688]| 29-978 | 29-768 | 29-660 | 30-036 | 29-434 | 29.664 | 29-422
4 ||[29-758]| 29-493 | 28-892 | 29-273 29-705 | 29-929 | 29-813 | 29-722 | 30-053 |[29-275]| 29-721 | 29.735
5 29-808 | 29-450 | 29-212 |[29-100]| 29-369 | 29-884 |[29-557]) 29-736 | 29-961 | 29-247 | 29-896 | 29.498
6 29-606 | 29-451 | 29-265 | 29-060 | 29-214 | 29.819 | 29-119 | 29-730 |[29-847]| 28-982 | 29-911 [29-789]
‘of 29-754 | 29-276 | 29-377 | 29-125 | 29-352 |[29-711]| 29-445 | 29.596 | 29-648 | 28-891 | 29-997 | 29-958
8 30-044 |[29-730]|[29-681]| 29-214 | 29-563 | 29-624 | 29-581 | 29.424 | 29-564 | 28-936 |[30-119]| 30-121
9 30-245 | 30-099 | 29-941 | 29-401 | 29-607 | 29-493 | 29-553 |[29.626]) 29-822 | 29-042 | 30-273 | 29-998
10 30-047 | 30-197 | 30-053 | 29-468 |[29-621]| 29-520 | 29-670 | 29-631 | 30-128 | 28-934 | 30-323 | 29-585
11 [29-769]| 29.905 | 30-239 29-246 | 29-694 | 29-801 | 29-807 | 29.626 | 30-194 [29-170] 30-314 | 29-501 |
12 29-661 | 29-896 | 30-266 |[29-424]| 29-709 | 29-909 |[29.635]| 29-748 | 30-297 | 29-436 | 30-325 | 29-613 |
13 29-352 | 29-859 | 29-955 | 29.227 | 29-803 | 29-890 | 29-714 | 29-313 [30-108]| 29-752 | 30-257 |[29-483]
14 29-266 | 29-925 | 29-604 | 29-513 | 29-954 |[29-957]| 29-514 29-608'| 30-057 | 28-923 | 30-137 | 29.335 f
15 29-413 |[29-892]|[29-511]| 29-690 29-777 | 29-977 | 29-551 | 29-418 | 30-007 | 28-718 [29-908]; 29-371
16 29.596 | 29-978 | 28-707 | 29-839 | 29-475 | 30-088 | 29-282 [29-434]| 29-963 | 29-029 | 29-842 | 29-491
17, 29-540 | 29-899 | 29-078 | 29-727 |[29-358]| 30-076 | 28-995 | 29.492 | 29.824 | 29.258 29-497 | 29-592 |
18 |[29-188]} 29-793 | 29-458 | 29-844 | 28-798 | 29-965 | 28-911 | 29-311 | 29-756 \[29-031]| 29-389 29-699 |
19 28-935 | 29-752 | 29-438 |[29-848]| 29.031 | 29-861 |[29-273]| 29-463 | 29-499 | 29-290 | 29-283 | 29.456 j
90 28-685 | 29-774 | 29-479 | 30-000 | 29-113 | 30-064 | 29-556 | 29-494 |[29.561]| 29-190 | 28-760 [29-187}}
21 28-961 | 29-684 | 28-990 | 29-851 | 29-579 |[29.636]| 29-423 | 29-689 | 29.563 | 28-702 | 29-030 | 28-749 i
22 |i 28-663 |[29-456]|[29-124]| 29-825 | 29.837 | 29-668 | 29-474 | 29-832 | 29.522 28-779 |[29-152]| 28-818 |
93 «|| 28-865 . 28-823 | 29-790 | 29-977 | 29.205 | 29-392 \|[29-867] 29-200 | 29-298 | 29-388 | 28-810
24 ~|| 29-159 | 29-105 | 28-971 | 29-727 [29-810]| 29-055 | 29-435 | 30-078 | 29-195 | 29-247 | 29.275 | 29.183}
95 [28-913]| 29-041 | 29-042 29-781 | 29-834 | 29.264 | 29-603 | 30-104 | 29-422 [29-504]| 29-178 | 29-621 k
26 28-763 | 29-335 | 29-183 |[29-766]| 29-833 | 29-360 |[29-641]| 30-003 | 29-315 | 29 785 | 28-932 | 30-036 |
7 29-015 | 29-341 | 29-377 | 29-664 | 29-801 | 29-361 | 29-715 | 29-899 |[29-304]| 30-025 | 29-244 |[29-892]}
28 29-012 | 29-420 | 29-412 | 29-733 | 29-977 [29-356]| 29-821 | 29-917 | 29-321 | 29-891 | 29-364 | 30-128 F
29 29-078 [29-381]| 29-900 | 30-034 | 29-303 | 29-883 | 29-884 | 29-099 | 29-926 |[29-342] 30-134
30 29-383 29-847 | 30-025 | 29-982 | 29-360 | 29-939 [29-960]| 29-470 29-919 | 29-772 | 30-252
31 29-285 29-421 [29-980] 29-918 | 29-929 | 29-741 30-279
TABLE LVI.—Mean Height of the Barometer at the Observation Hours for each Month, for each
Astronomical Quarter, and for the Year 1846.
Makerstoun
Mean Time.
January
February
March
April |
May
June
July
August
September
October
November
December
Nov., Dec., Jan.,
Feb., Mar., Apr.,
May, June, July,
Aug., Sept., Oct.,
The Year
21, 23, 14, 3h, 5h,
in. in. in. in. in. in. in.
29-364 129-375 |29-390 |29.397 |29-392 /29-398 |29.406 |29.
-598 602 | -612 624 | -620 | -613 -620
405 | -410 -411 416 .409 | -402 -399
523 536 | -539 | -534 | -532 | -524 | -597
-643 655 656 655 | -652 | -643 | -639
716 721 717 712 | -702 | -695 -685
549 | -557 560 | -561 -558 550 | -548
695 | -700 | -697 | -693 | -685 678 | -674
735 74a |" 747 eae eo) 714 | erga
306 | -311 314 309 | -299 | .298 | -308
-654 | -665 | -678 676 | -659 | -646 | -642
577 | 581 599 | -604 | -595 | -598 | -604
-53817| -5403| -5557| -5590| -5487| -5473| -5507
-5087| -5160| -5207| -5247| -5203| -5130! -5153
6360| -6443| -6443| -6427| -6373| -6293| -6240
5787| -5850| -5860| -5800| -5703| -5633| -5650
5637
(he
in.
412
-633
-404
-040
648
-692
“004
-687
-726
322
-638
-614
5547
0273
-6313
-0783
ble
in.
29-413
iM
)
OOnNInaoPP wh =
ATMOSPHERIC PRESSURE, 1846.
TABLE LVII.—Diurnal Range of the Barometer for each Week-Day and Week, for 1846.
March. | April.
TABLE LVIII.—Diurnal Range of the Barometer, with reference to the Moon’s Age and
Declination, for 1846.
Mean
Diurnal
Range.
in.
0-204
-167
+208
-200
+192
-209
+228
+255
-146
-298
-179
-187
219
+212
-253
[
May. June.
in.
0-167
-089
-180]
378
+285
078
Mean
Diurnal
Range.
in.
0.221
147
248
+248
-207
-182
-191
+257
+202
-190
-189
-152
-181
+155
-155
0-
-023
068
-066
-064
072
089]
157
-103
071
-411
-067
026
137]
133
in.
056
After
Moon
farthest
North.
D
OMNIA NAWHE OF
Mean
Diurnal
After
Moon
farthest
Mean
Diurnal
75
76
TABLE LIX.—Extreme Readings of the Barometer for each Month; Extreme Mean Daily Heights
for each Month ; and Extreme Diurnal Ranges for each Month, together with the Ranges and —
RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1846.
Means of the Extremes, for 1846.
' Extreme Readings. Extreme Daily Means. Extreme Diurnal Ranges
Month. :
Highest. Lowest. Range.| Mean. Highest. Lowest. Range. | Mean. Greatest.
d. h. in. d. bh. in. in. in. d. in, d. in. in. ams pli}, ads in. d.
Jan. 9 0|30-304| 21 18 |28-498)| 1-806 |29-401 g) 30-245 22 | 28-663) 1-582 |29-454 | 1 |0-761) 17
Feb. 9 23 | 30-268| 24 22 |28-863| 1-405 | 29-565 | 10 | 30-197) 25 | 29-041| 1-156 |29-619 || 3 |0-539)| 13
March|| 11 10|30-380|16 8/28-492| 1-888 |29-436 | 12 | 30-266) 16 | 28-707| 1-559 |29-486 | 21 |0-730| 19
April || 29 21) 30-058} 2 18 |28-823 | 1-235 |29-440 || 30 30-025 2 | 28-913) 1-112/29-469|| 3 |0-436|) 7
May || 28 18/|30-066,18 4)|28-772| 1-294 |29-419 | 29 | 30-034) 18 | 28-798) 1-236 |29-416 | 21 |0-496| 26
June | 16 10| 30-115|23 18 |28-988| 1-127 |29-551 || 16 | 30-088] 24 | 29.055} 1-033 |29-571 | 23 |0-500| 2
July || 30 10| 29-986|18 6 |28-778| 1-208 | 29-382 || 30 | 29-939) 18 | 28-911) 1-028 |29.425 || 16 |0-437| 9
Aug. | 24 20/30-132/13 2/29-118| 1-014 | 29-625 || 25 | 30-104] 18 | 29-311) 0-793 29-707 | 13 0-579| 5
Sept. | 12 10| 30-351/29 4/29-027) 1-324 |29-689 | 12 | 30-297| 29 | 29.099) 1-198 |29-698 | 30 |0-432| 3
Oct. 27 0|30-061|21 4|28-582) 1-479 |29-321 | 27 | 30-025] 21 | 28-702| 1-323 |29-363 || 14 |1-026| 30
Noy. | 10 0) 30-352)20 8/|28-267)| 2-085 |29-310 || 12 | 30-325] 20 | 28-760} 1-565 |29-542 || 20 |0-970 Pe
Dec. || 30 22| 30-304) 22 18|28-681) 1-623 |29.492 | 31 | 30-279] 21 | 28-749) 1-530 |29-514|| 25 |0-537| 28
|
TABLE LX.—Daily and Weekly Means of
in 1846.
Civil Jan. Feb March. | April.
Day.
1b. 1b. 1b. Ib.
1 | 1-97 | [1-92] | [1-97] | 0-37
2 0-14 0-49 2-22 0:28
3 0-36 2-30 2-55 1-98
4 [0-89] | 1-36 4-86 0-22
5 | 017 | 1-02 | 0.35 | [0:94]
6 0-86 1-12 0-21 1-33
7 1-83 4-75 0-70 1.39
g || 2-04 | [1-43] | [0-44] | 0.42
9 1-26 1-26 0-11 0-29
10 1-30 0-12 0-90 0-29
11 [0-82] | 0-30 0-37 0-89
12 0-12 0-11 1-26 | [0-69]
13 0-03 0-26 2-12 1.36
14 0-17 0-21 2-27 0-36
15 0-30 | [0-18] | [2-21] | 0-96
16 0-02 0-32 3:05 0-39
17 0-15 0-13 2-13 0-16
18 [0-54] 0-08 0-41 0-13
i9 || 0-83 | 0-09 | 0.01 | [0-31]
20 1-35 0-05 0-28 0-30
21 0-60 1-30 2-47 0-17
22 || 0-13 | [1-01] | [0-50] | 0.69
23 0-05 1-02 0-15 1.62
24 0-06 1-46 0-07 0.94
25 [0-40] | 2-12 0-02 0.31
26 0-17 1-13 0-01 [0-84]
27 0-75 0-63 0-31 0.92
28 1-27 0-42 0-59 0.27
29 1-70 [0-25] | 0.96
30 2-58 0-12 0-12
31 3-12 0-10
the Pressure of the Wind, in Pounds on the Square
Foot of Surface, deduced from the greatest pressures occurring between the Observation Hours,
Sept.
1b.
0-30
0-50
0-62
0-20
0-12
[0-36]
0-19
0-61
0-42
0:47
0-24
0-21
[0-21]
0-17
0-12
0-06
0-09
0-15
0-14
[0-31]
0-27
Least.
| im.
0-05
0-031
0-022
0-032
0-034
0-023
0-042
0-025
0-032
0-090
0-034
0-047
a ee ee cee a
PRESSURE OF THE WIND, 1846. (ts
TABLE LXI.—Daily and Weekly Means of the Pressure of the Wind in Pounds on the Square Foot
of Surface, deduced from the greatest pressures observed within 10™ a¢ the Hours of Observation
in 1846.
OONOAP WhO
[0-72]
1-32
0-62
0-50
0-47
0-29
0-51
[0-56]
0-46
[0-17]
0-12
0-38
[0-16] | 0-08
0-24
TABLE LXII.—Mean Pressure of Wind with reference to the Moon’s Age and Declination,
for 1846.
After After
Moone a et Moon a Nioon eer
Age igend, |e |< wind, | | wing |S wing.
Day. 1b. Day Ib. Day. 1b. Day Ib
15 0-33 0 0-58 0 0-45 14 0-40
16 0-45 1 0-47 1 0-50 15 0-40
il?/ 0-51 2 0-55 2 0-63 16 0-34
18 0-36 3 0-41 3 0-33 17 0-26
19 0-59 4 0-52 4 0-25 18 0-28
20 0-26 5 0-63 5 0-25 19 0-25
21 0-27 6 0-35 6 0-26 20 0-43
22 0-46 a 0-62 7 0-45 21 0-44
23 0-38 8 0-23 8 0-45 22, 0-42
24 0-38 9 0-38 9 0-42 23 0-45
25 0-30 10 0-31 10 0-44 24 0-38
26 0-23 11 0.52 11 0-62 25 0-52
27 0-36 12 0-37 12 0-46 26 0-54
28 0-31 13 0-38 13 0-32 27 0-41
29 0:37 14 0-17
pe EE —ee—E—EE__——EEEE—_ EEE Eee
MAG. AND MET. OBS. 1845 anp 1846. U
78
TABLE LXIIJ.—Maximum Pressure of the Wind in each Civil Day in 1846.
oC ON DO P WwW HO =
owno nen Ww NH NH NH NY NY NY KY FY KF Bee Be ee Se
= So eS Oo ON Gy ou UR ON ee OS 6) oS SS Or oS ee!) ob) US CS
RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1846.
Aug.
1b.
3-0
0:5
0-4
0-5
0-3
0-3
0-9
0-6
1-3
2-8
2-6
0-8
2-2
0-9
1-1
1-6
0-8
0-5
0-5
0-5
0-7
0-7
1-0
0-5
0-3
0-4
0-4
0-4
0-3
1-0
0-8
Sept.
Ib.
0-8
0-9
1-4
0-3
0-2
1-0
0-4
2-1
1-1
1-3
0-5
0-5
0-2
0:3
0:3
0-1
0-2
0-4
0-3
1-1
1-0
1-5
1-7
0:3
0-6
1-5
1-2
0-5
2-4
0-4
Oct.
Noy.
0-1
4-6
PRESSURE OF THE WInpD, 1846. 2
TABLE LXIV.—Means of the Maximum Pressure of Wind between the Hours of Observation for
each Month, for each of the Astronomical Quarters, and for the Year 1846.
Makerstoun ae ms dete
Mean Time. 17h—.19h, | 19h— 21h,
Ib. Ib.
January 0-73 0-67
February 0:73 0-92
March : 0-96 1-28
April . 0-42 0-68
May . 0-56 1:09
June . 0-44 0-70
July . 0-67 0.96
August : 0-33 0-37
September . 0-22 0.24
October . 0:57 0-70
November : 0-62 0-90
December : 0:67 0-53
Nov., Dec., Jan., . 0-67 0-70
Feb., Mar., Apr., . 0-70 0-96
May, June, July, : 0-56 0-92
Aug., Sept., Oct., : 0-37 0.44.
The Year . 0-58 0:75
TABLE LXV.—Means of the Maximum Pressure of Wind within 10™ at the Hours of Observation
for each Month, for each of the Astronomical Quarters, and for the Year 1846.
ele | 7 19», 21%, 23h, 1h, 3h, 5h, 7h, gh,
Mean Time.
Tb. Tb. lb. Ib. 1b. lb. 1b. lb. lb.
January 0-48 0-37 0:36 0-51 0-49 0-42 0:47 0-58 0-44
February 0-42 0-37 0-53 0-75 0-57 0-85 0-49 0-22 0-32
March 0-57 0-44 0-93 0-72 0-71 0-95 0-58 0-49 0-40
April 0-19 0-31 0-50 0-55 0-59 0-61 0-41 0-26 0-18
May 0-20 0-44 0-80 0-96 0:97 0-99 0:76 0-42 0-27
June 0-18 0-30 0-46 0-51 0-61 0-52 0-53 0-31 0-28
July 0-29 0-40 0-76 9-68 0-72 0-78 0-53 0-46 0-34
August ) O-11 0-16 0-32 0-35 0-25 0-30 0-26 0-16 0-10
September i 0-10 0-13 0-20 0-36 0-29 0-29 0-21 0-18 0-10
October | 0-34 0-33 0-43 0-59 0-50 0:55 0-43 0-43 0-41
November 0-37 0-40 0-43 0-59 0-59 0-59 0-49 0-56 0-42
December 0-31 0-31 0-46 0-41 0-35 0-47 0-38 0:39 0-31
Nov., Dec., Jan., | 0-39 0-36 0-42 0-50 0-48 0-49 0-45 0-51 0-39
Feb., Mar., Apr., | 0-39 0-37 0-65 0-67 0-62 0-80 0-49 0-32 0-30
May, June, July, 0-22 0-38 0-67 0-72 0-77 0-76 0-61 0-40 0-30
Aug., Sept., Oct., 0-18 0-21 0-32 0-43 0-35 0-38 0-30 0-26 0-20
The Year 0-30 0-33 0-51 0-58 0-55 0-61 0.46 0:37 0-30
80 RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1846.
TABLE LXVI.—Number of Times which the Wind blew from each Point of the Compass at the
together with the sums of the Pres-
January. February. March. April. May. June.
Wind blowing
from
Times. | Press. || Times. | Press. || Times. | Press. || Times. | Press. || Times. | Press, || Times. | Press.
it Leer Ib. Ib. Ib. Ib. Ib. 1b.
N. aay A ti O:% 7 | 18] 13/137 | 4 | 09 12) 0-1
N by E. ahd ox 1 1-6 ic Bar San ie-7 |
NNE. 2 0-4 3 0-9 25 15-7 7 1-7 8 2-9
NE by N. 2 0-4 2 0-8 9 4-4 3 0-8 2 0-4
NE. 2 0:2 1 0:3 24 10-9 9 3-0 9 2-5
NE by E 1 0-3 14 5-1 1 0-8 1 0-4
ENE. 2 0-3 11 5-2 10 5:5 3 0-3
K by N. 1 0-1 2 0-2 1 0-7 2 0-5
kK. 3 2-6 4 0-6 6 3-6 1 0-1
E by 8. 1 0-1
ESE. 2 1-6 1 0-1 5 2-7 2 1-0
SE by E. 1 0-8 2 0-2 2 1-9 1 0-2
SE. 3 0-7 1 0-1 1 0-2 7 5-2 3 0-9
SE by S. 1 0-1 2 0-2 1 0-1 2 0.8
SSE. 2 0-3 1 1-0 3 0-5 6 3:3 5 3-1 7 2-6
S by E. 2 1-0 2 0-4 1 0-2 6 5-4 1 0-2
Ss. 13 1-9 9 3-2 16 30-0 6 3-3 13 11-2 5 1-4
S by W. 16 7-2 7 5:8 8 9-1 6 3-6 3 2-9 3 4-3
SSW. 23 14-3 20 13-0 19 16-9 10 3-1 24 19-7 21 18-1
SW by S. 15 14:3 16 15-6 18 25-0 2 0-7 10 9-8 16 16-4
SW. 43 33-6 28 24-0 22 22-9 4 0-6 17 14-6 24 20-6
SW by W. 13 15-8 12 6-2 10 10-6 2 0-2 6 6-0 17 7-0
WSW. 8 7-1 10 3-9 12 7-9 4 0-4 15 9-9 LZ 8-7
W by S. 1 0-7 4 1-3 4 8-8 4 2:0 4 1-9 2 0-4
W. 1 1-0 13 13-6 5) 3°8 5 1-6 14 15-6 7 2-4
W by N. 3 3-0 6 4:5 6 3-2 1 1-2 4 3-1 4 1-5
WNW 1 0-9 9 5-1 4 4-9 oe one 13 13-9 2 1-2
NW by W 2 1-8 1 0-2 1 0-3 3 0-5
Nw. 1 | 26 9 | 3-2 4 | 12 cy le 3 | 08
NW by N. 1 | e@al 2 leds | gee h 2-1 Hee
NNW. 1 0-2 3 1-5 3 0-7 4 1-4 4 1-2 2 0-2
N by W. 4 3-3 2 0:3 2 0-4
LAE es
PRESSURE AND DIRECTION OF THE WIND, 1846.
81
Observation Hours, with a Pressure of one-tenth of a pound or upwards on a square foot of surface,
sures, for each Month in 1846.
July. September.
October.
November.
December.
Times. | Press. Times. | Press.
Oorenwoe OD WH = AW
MAG, AND MET. OBS. 1845 anp 1846,
Press.
oOnwoww kf = OO WwW
Times.
Wind blowing
82
RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1846.
TABLE LXVII.—Number of Times which the Wind blew from each Point of the Compass.
the square foot of surface, together
Wind blowing
from
17h.
OR:
Times.
Se PF WAT YO De DD Ww
Press.
Times.
re DwWan ne fF HO NT oe
Press.
Times.
Press.
23h,
Times.
Press.
Times.
Press.
3h,
Times.
on
owe STF OO OO = D
— Ww
aD w
Press.
PRESSURE AND DIRECTION OF THE WIND, 1846. 83
at each Observation Hour in 1846, with a Pressure of one-tenth of a pound or upwards on
with the sums of the Pressures.
7h, : 9 Observations. 12 Observations. Mean
ee” Wind blowing
Times. | Press. || Times. | Press. Times. Press. || Blowing.
67
18
89
40
28
NW by N.
NNW.
N by W.
Honor ownwo fF Ww PP OH
84 RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1846.
TABLE LXVIII.—Sums of the Pressures of the Wind in Table LXVL., resolved into the Four
Cardinal Points of the Compass, together with the Value and Direction of the Resultant for each
Month, for each of the Astronomical Quarters, and for the Year 1846.
Resultant.
’ Sums of Pressures resolved in
Period Means with reference to
ioe": N. EB. S. W. Sums. Whole No. No. of Obs., Directions.
of Obs. Wind blowing.
1b. 1b. Ib. lb. 1b. lb. 1b.
January 4:8 6-2 71:3 67-2 90-2 0:37 0-56 Ss.
February 12-3 0-9 58-0 68-4 81-5 0-38 0-52 W.
March 7-6 1-7 103-2 75°6 120-8 0-52 0-79 Ss.
April 60-4 30-2 15-0 10-1 49-6 0-21 0-28 N.
May 19-1 23-6 72-2 75-3 74-1 0-32 0-36 Ss.
June 7:3 7-4 62-2 51-4 70-4 0-30 0.42 Ss.
July 13-8 8-6 79-3 72-2 91-3 0-38 0-41 Ss.
August 11-9 11-6 25-4 19-5 15-6 - 0-07 0-08 Ss.
September 11-3 13-1 20-6 19.4 11-2 0:05 0-06 8.
October 39-6 16-9 50:3 32-3 18-7 0-08 0-10 W.
November 19-9 9-1 79:8 25-3 62-0 0:28 0-36 s.
December 58:3 3-4 13-4 41-6 58-9 0-24 0-31 N.
Astron. Qrs. : ©
W inter §3-0 18-7 164-5 134-1 141-3 0-20 0:27 W.
Spring 80-3 32-8 176-2 154-1 154-6 . 0-23 0-32 W.
Summer 40-2 39-6 213-7 198-9 235-5 0-33 0-40 S.
Autumn 62-8 41-6 96-3 71-2 44-7 0-06 0-08 Se
The Year. Ww
TABLE LXIX.—Sums of the Pressures of the Wind in Table LXVII., resolved into the Four
Cardinal Points of the Compass, together with the Value and Direction of the Resultant, for each
of the Observation Hours, and for the Year 1846.
Resultant.
Sums of Pressures resolved in
Makerstoun Means with reference to
Mean Time. z ;
Ne E. S. W. Sums. Whole No. No. of Obs., Directions.
of Obs. Wind blowing.
h. lb. 1b. lb. 1b. lb. Ib. 1b. =
Wf 19-3 6-2 51-2 42-8 48-6 0-16 0-27 W.4158S
19 24-5 8-4 51-8 44-3 45-1 0-14 0-22 W. 378
21 32-5 15-0 87-1 66-3 74.9 0-24 0-31 W.4758
23 36-7 21-8 99-4 75-4 82-5 0-26 0-31 W.498S
1 29-6 20-7 91-6 80-0 85-9 0-27 0-30 W.465S,
3 40-0 24-7 88-9 90-6 82-1 0-26 0-29 W. 3758.
5 31-0 16-9 73-6 64-7 64-0 0-20 0-24 W.42S8S
7 28:3 12-0 60-6 51-7 51-2 0-16 0-21 W. 39S
9 23-7 6-9 46-7 43-0 42-8 0-14 0-21 W. 3258
Sum of 9 Obs.|| 265-6 132-6 650-9 558-8 574-5 0-20 0-26 W. 428
Sum of 12 Obs.|| 330-1 152-2 7978 687:5 710-8 0-19 0-26 W.415S
EXTENT OF CLOUDED Sxy, 1846.
85
TABLE LXX.—Differences of the Directions of Motions of the Lower and Upper Currents of Air, as
deduced from the Comparisons of the Direction of the Wind and the Motions of the Clouds in 1846.
Quadrant N. to E.
Currents.
No. of en A Mean
a Result.
Results.) Motion.
Scud minus 2 pe
; 7 | Sel 18
Wind
1 0
Cir.-str. minus : a a 17
Wind a
| 0 0
r : Ge 5 +34
ae minus 3 =4p | 5 9
H 4 0
Cirrus minus J z 2
ea ie 0 ae +45
| oo]
Cirrus minus }| : toe
0 Doe +20
Seud Fa aaa | 0
Quadrant E. to S. Quadrant S. to W. Quadrant W. to N.
No. of ise Mean || No. of eat Mean || No. of nieae Mean
Results. = Result. || Results. Ph a Result. || Results. be us Result
Motion. Motion. GB Motion. A
17 +20 129 +22 21 +25
4 —- 9} +12 11 — 9} +19 8 —11/ +15
4 0 6 0 1 0
7 +17 53 +33 12 +30
2 -—13} +11 6 —14/] +29 4 —38 | +138
0 0 0 0 0 0
9 +28 17 + 23 12 +36
0 tee +18 10 —-18} + 6 8 -27|+ 8
5 0 8 0 6 0
2 +58 36 +40 8 +35
0 dst +58 3 —21 | +32 1 —22 | +26
0 0 4 0 1 0
6 +52 18 +39 12 +30
0 tee +44 6 —12 | +23 d —-25 |} 4 9
1 0 3 0 1 0
TABLE LXXI.—Daily and Weekly Means of the Estimated Extent of Clouded Sky, the whole Sky
covered being 10, for 1846.
9:5
10-0
a 75 a
9-2 5:3 | 10-0
9-7 8-6 | 10-0
10-0 Safe (7-9)
10-0 3-6 4-8
9-5 rE 7-6
[9-5] | [6-0] | 7-2
9-7 75 9-2
9-6 8-4 | 10-0
8-4 5-6 9-4
9-2 (le s[ 3-2)
7.3 7.8 8-4
6-8 6-1 6-2
[Wat 5-9
8-1 9-9
8-1
9-5 4:7 9-3 8-9 5:3
8-5 81 1) (9:0].| , 6-6 .,| 10:0
6-3 8-1 7-8 SOs Ze al
423° a7] |) 9-9 8-9 6-7
9-5 6-7 7:5 6-4 6-0
9-2 | 10-0 GO iy i644) el
[ie Alls lee et 5:9 5-8 9-6
6-1 5:8 5-2 3-5 8-1
6-2 F:60 | [Seah | Lace 9-0
9-0 5:8 9-1 6-2 | [8-9]
Be al aml (7674 fel 4-2 7-5
5-7 6-1 | 10-0 7-3 \' 0-0
3-2 8-7 i Tes | 80
[2-7] 9-6
MAG. AND MET. OBs, 1845 anv 1846.
9-5 9-2 2.7
[S-Slaleeoe 6:7
78 4-2 7-3
8-9 9-7 | [7-2]
9.9 4.5 9-6
Oy ieee (ee
6-5 6-1 8-2
9.9 5:7 4-5
livatie: oer 2-8
2.5 | 10.0 1-0
5-9 7-7 | [4-8]
8-8 3-6 8-0
4-7 | [5-8] | 6-9
3-7 7:4 5:5
9:3 9-5
Y
86 RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1846.
TABLE LXXII.—Means of the Estimated Extent of Clouded Sky at the Observation Hours for
each Month, for each of the Astronomical Quarters, and for the Year 1846.
Makerstoun 174, 19», 21h, 23h, 1, 3h, 5h, 7, 9,
Mean Time.
January 77 8-6 8-1 8-5 8-4 8-1 8-5 8-1 7:7
February 6-9 7:3 8-7 8-1 8-1 8-8 8-2 8-2 7:8
March 7:8 7-4 7:8 7-5 71 7:3 5-9 5-9 6-1
April 8:5 8-2 8-3 9-4 9.2 8-4 7:8 7:8 7-4
May 6-6 7-7 6-8 7-1 7:3 7-5 6-6 7:7 6-6
June 5-1 5:3 5:5 6:3 6-9 6:8 7-0 6-1 6-2
July 8-8 9-2 9-1 8-6 8-9 8-6 8-3 8-3 8-3
August 7-9 7-9 7-2 7:8 8-0 6-7 6-0 5-7 6-0
September 7-4 7:3 7-8 8-0 7-7 7-7 7-2 7-1 6-1
October | 76)! 7-6 8-2 8-3 7-9 6-8 7-6 6-1 6-4
November I) gee, 7-0 6-3 7:8 7:7 8-1 7-6 6-9 7-6
December | 5-5 7-1 6-4 6-0 6-2 6-5 5-4 4-6 5-0
Noyv., Dec., Jan., 6:8 7-6 6-9 7-4 7-4 7-6 7-2 6-5 6-8
Feb., Mar., Apr., 7:7 7-6 8:3 8:3 8-1 8-2 7-3 7:3 7-1
May, June, July, 6-8 7-4 7-1 7:3 7:7 7:6 7:3 7-4 7-0
Aug., Sept., Oct., 7-5 7-6 7:7 8-0 7:9 7-1 6-9 6:3 6-2
The Year, 7-21 7-55 7-52 7:78 7°78 7-61 7:17 6-87 6-77
TABLE LXXIII.—Quantity of Rain by the Observatory, Garden, and Greenhouse Gauges, for the
Years 1846-1849.
Observatory Gauge. Garden Gauge. Greenhouse Gauge.
1846. 1847. 1848. 1846. 1847. 1848. 1847. 1848.
in. in. in. in. in. in. ‘ in. in.
1-901 | 0-624 | 1-166 | 1-95 0-70 0-95 . 0-67 0-85
1-827 | 0-484 | 3-780 | . 0-52 3-68 . 0-44 3-18
2-293 ; 0-330 | 3-350 | . 0-44 3-29 0-29
2-272 | 1-201 1-028 : 1-16 1-05 0-81
2-975 | 4-335 | 0-350 | . 4-16 0-53 : 3-46
2-761 1-970 | 3-826 . 1-86 3-67
7-124 | 2-099 | 1-294 . 3-27 1-40
4-738 1-035 | 3-223 . 1-08 2-60
4-586 | 1-375 | 1-182 . 1-24 1-42
3-506 | 2-778 | 4-152 . 2-31 3-72
2-054 | 1-839 | 2-252 . 1-71 Gauge
1-817 | 4-006 | 1-627 | : 3-21 | broken.
37-854 | 22-076 | 27-230 : 21-66
Norz.—The Tables in the preceding pages have been formed in the manner already described in the
volume for 1844.
\
REPORT
TO
GENERAL SIR THOMAS MAKDOUGALL BRISBANE, BART.,
G.C.B., G.C.H., D.C.L., LL.D., F.R.S., F.R.A.S., H.M.R.LA., PRESIDENT OF THE ROYAL SOCIETY OF
EDINBURGH, AND CORRESPONDING MEMBER OF THE INSTITUTE OF FRANCE,
ON THE COMPLETION OF THE
PUBLICATION, IN THE TRANSACTIONS OF THE ROYAL
SOCIETY OF EDINBURGH.
OF THE
OBSERVATIONS MADE IN HIS OBSERVATORY AT
MAKERSTOUN.
By JOHN ALLAN BROUN,
LATELY DIRECTOR OF THE OBSERVATORY.
EDINBURGH:
PRINTED BY NEILL AND COMPANY.
MDCCCL.
REPORT, &.
To GENERAL Sir T. MAKDOUGALL BRISBANE, Barr.,
PRES. ROY. SOC. EDIN.
Sir,—I have several times brought under your notice the state of the Maker-
stoun Observatory, and of the Observations made in it, but generally with refer-
ence to some special object connected with the prosecution of the work itself; it
seems desirable now, when the Observations have been reduced and printed, that
I should report to you in a more complete way, in order to embody in the report
some notice of the imperfections of the instruments and processes usually em-
ployed, and some suggestions for their improvement, the results of my experience
in the management of your Observatory.
Hisiory.—The proposal made by Humpoxpr for obtaining an extensive
series of corresponding observations in terrestrial magnetism, and generally in
the physics of the globe, was readily prosecuted in different countries, but espe-
cially in the Russian and in the British Empires. In the latter, many observa-
tories were founded,—by the British Government in the Colonies, and by the East
India Company in the large territory under its sway. At home, our Government
also founded an Observatory at Greenwich, under the powerful direction of the
Astronomer Royal; in Dublin, another observatory was established at the ex-
pense of Trinity College, which was placed under the skilful hands of Dr Ltoyp,—
an observatory which was the Normal School for the Directors of the Colonial Ob-
servatories. Scotland alone, of the three kingdoms, seemed destined to remain
without any share in this great scientific undertaking ; a matter of double regret
to the lovers of science in it, since an observatory in this country was even of
more importance to the enterprise than in the more southern localities. What the
British Government performed at Greenwich, and the rich institution of Trinity
College did at Dublin, was undertaken by yourself in Roxburghshire.
The building of the observatory at your seat at Makerstoun was commenced
early in 1841, but no observations were made till July of that year. The system
adopted was limited, in the first instance, to a few daily observations, together
with a participation in the complete series on Yerm-days. The observer, Mr
RussEu1, had also the charge of a transit instrument and of several clocks. In
2 REPORT ON THE COMPLETION OF
April 1842, Mr Russeni having resigned, the observatory was placed under my
direction, the same system of observation being continued. In the end of that
year I suggested the propriety of increasing the number of daily observations, an
increase which would require the services of another observer ; this suggestion,
which was seconded by the opinion of Professor J. D. Forses, was at once ap-
proved by you, and Mr Joun WELs#, a talented student in arts of the Edinburgh
University, was, at my recommendation, appointed by you as my assistant. The
series of observations obtained in 1843 was necessarily still incomplete, no obser-
vations were made after 9" p.m. nor before 5» a.M., excepting on term-days and
during magnetic disturbances: it was evident, therefore, that determinations of
the diurnal laws would still be desiderata; while it was equally evident that a com-
plete diurnal series would at once satisfy these wants, and render the previous in-
complete series of greater value. I then suggested the addition of another ob-
server to the establishment, pointing out, however, the most economical way in
which this addition could be made, and especially the fact that it would render
unnecessary the extra assistants required on term-days. These suggestions were
made throughout with the full knowledge that they were in accordance with your
object and wishes. I have merely to state the readiness with which you adopted
this suggestion and every other tending to the advancement of the work of the
observatory. Mr ALEXANDER Hoaa, an ingenious mechanic, who had been engaged
in the construction of the observatory (which was performed chiefly under his
superintendence), and who had been engaged under Mr RussE xt, at the first, and
under myself afterwards, as an observer on the term-days, was recommended by
me, as not only fitted for an observing assistant, but also as likely to be of much
use in matters of handicraft connected with the observatory and its instruments ;
he was accordingly appointed in the end of 1843. In 1844 and 1845 a series of
observations of all the magnetical and meteorological instruments was made
hourly, excepting on Sundays.* It was originally proposed that this hourly series
should extend through only two years ; in 1846, therefore, the same system was
adopted as in 1843. With the year 1846 terminated the period contemplated for
the extended work of your observatory, and the period contemplated by the
Royal Society of Edinburgh in adopting the large volumes of observations as por-
tion of their Transactions. A more limited series was made in the following years,
1847, 1848, and 1849.
* IT may remark here that the omission of observations on Sundays, even of the great and un-
usual magnetic perturbations, which has excited the astonishment of our German co-labourers, and
especially of the Baron Von Humsorpz, like the omission of many other works on the same day,
has never been felt as any loss. The amount of simultaneous disturbance observations in existence,
made on the six week-days, is greater than we are likely to make any use of. It had not occurred,
perhaps, to our continental friends that there was any difficulty in determining the kind of scientific
work which would not be a “ sin upon an English Sunday,” as their own limit, if they have any, is
not of a very stringent character.
THE MAKERSTOUN OBSERVATIONS. 3
The first part of the Makerstoun Observations was published in June 1845,
and the last part appeared in June of the present year: the last part contains the
detailed tables of results for the years 1845 and 1846, together with the general
results of all the observations, including the monthly means of observations made
in 1847, 1848, and 1849. The Makerstoun Observations have appeared as a por-
tion of the Transactions of the Royal Society of Edinburgh, that body having
liberally granted £600 towards the expense of printing; a grant for one object
which, I am satisfied, will bear comparison with the grants of much richer
societies.
I shall now notice some of the more salient matters in connection with the
Observatory itself and its instruments.
The Observatory.—The geographical co-ordinates are—
Latitude, 55° 34’ 45” N.
Longitude, 0° 10" 3°5 W. of Greenwich.
Height of the barometer cistern above mean water at Berwick, 213 feet.
The observatory is constructed of wood, like that at Greenwich ; its architec-
tural character is not of the highest order; it is placed on a small rising ground
which is probably formed of felspathic trap, covered with rolled boulders, pebbles,
and gravel. The internal division of the building, and the number, size, and
positions of the windows are ill adapted for the purposes of the observatory.
The plan and elevation were due to an assistant in the Dublin Observatory. Care
was taken to exclude iron completely from the structure, copper nails having been
used throughout: the telescopes and instruments were placed upon excellent
white sandstone pillars, well-founded, and unconnected with the floor. The care
taken in this matter is the most deserving of praise in connection with the con-
struction of the observatory, and that care was chiefly or altogether your own.
It should not be forgotten that the knowledge of the best arrangement for such a
building was very small at the time it was planned, if it is considerable now.
The range of temperature within the observatory was much too great, owing
to the thinness of the walls, and the number and largeness of the windows. ‘The
building was at first heated by copper stoves which soon became oxidated, and
produced suffocating fumes of most hurtful character. It was altogether im-
possible to approximate to anything like uniformity of temperature in a house
so easily affected by external variations. The stove was discontinued in 1848.
and a small brick building erected at a distance for a computing room in winter.
I proposed, in 1843, to heat the observatory with hot water pipes, but the difficul-
ties connected with this process were too considerable to render the experiment
desirable. It was found possible in 1845, to erect a fire-place with a tubular
brick chimney in one of the ante-rooms, which, though wholly useless for heating
+ REPORT ON THE COMPLETION OF
the observatory, served to render the small room in which it was placed suffi-
ciently comfortable for a computing-room.
The Instruments.—The declination and bifilar magnetometers were made by
Mr Gruss of Dublin. The magnets during 1841 and 1842 were enclosed by
loosely fitting cylinders, resting upon the pillar tops, covered by glazed lids; but
the junctions were neither pressed together by any contrivance, nor was there
any moderate precaution taken to prevent currents of air from circulating in the
boxes. In 1843 and 1844, these and various other defects were removed: the
joints were lined with velvet and pressed firmly together; rectangular boxes
were placed within the drums; both cylindrical and rectangular boxes were gilt
outside and inside; and the whole apparatuses were covered by thick cotton
hoods. The gilding prevented the effects of radiation in producing currents
within the boxes; the other precautions prevented the entrance of external cur-
rents, and secured to a considerable extent a uniform temperature and dryness.
The suspension threads for the declination magnet broke at short intervals
in 1841 and 1842; they were succeeded in June 1843 by a thread carefully pre-
pared, which is still in use, and apparently as good as ever. In case, however,
the suspension thread should have received any torsion, the magnet was removed
occasionally, a brass bar was suspended, and the torsion was rendered zero for the
magnetic meridian before replacing the magnet; when little torsion was found
existing the trials were made seldomer, as the mere manipulation was apt to in-
troduce torsion of itself.
Errors due to twist in the suspension wires of the bifilar magnet, were
eliminated by the process employed to determine the unit-coefficient. The
interval of the wires was adjusted according to the instructions by the Committee
of the Royal Society ; but this rendered the instrument too sensitive, and, during
moderate disturbances, the scale went out of the field of the telescope. This was
attempted to be remedied at the time by turning the torsion circle till the scale
reappeared, generally a difficult and unsatisfactory operation; in 1846. however,
I employed a small magnet for the purpose, this being placed at known distances
where its effect upon the bifilar magnet was determined.
Even for the ordinary diurnal movements, however, the instrument was too
sensitive; the reading of the magnet scale was estimated to one-tenth of a division,
and of the thermometer to one-tenth of a degree, but a variation of one-tenth of a
degree in the temperature of the magnet is equivalent to two-tenths of a scale divi-
sion in its motion. The thermometer was placed with its bulb resting on a brass
bar, so that it might show as nearly as possible the temperature of the magnet.
The balance magnetometer was made by the late Mr Rosinson of London;
the box was gilt inside and outside, and covered with cloth as in the case of the
other instruments. The magnet was never lifted from its support, excepting
THE MAKERSTOUN OBSERVATIONS. 5
during the adjustments; it was vibrated through small arcs only. Many of the
apparent anomalies which I have observed in this instrument, and described in
the Edinburgh Transactions, were probably due to the facts, that the needle rests
upon knife edges, and that every care being taken in the management of the instru-
ment, the consequences of such a mode of support were exhibited under the most
favourable circumstances.
I have referred to the imperfections of the inclinometer, in the introductions
to the various volumes; one error [ believe to be due to the presence of iron in
the copper circle or basement of the instrument.
The barometer, a standard by Mr Newman, was fixed to the south wall of
the west ante-room, not the best possible position in the observatory, as it was
subjected to greater variations of temperature than it would have been if placed
to the north. The thermometers were placed on a revolving frame in front of one
of the north windows; but the case was removed to the west in the morning, and
to the east in the evening, when the sun shone near to, or north of the prime
vertical. The anemometer is sufficiently well-fitted for the determination of the
laws of variation, but there is considerable uncertainty as to its value for giving
absolute results, as there is with most of the anemometers yet in use. From
various causes, the working of the aneémometer became less trustworthy in 1848
and 1849.
Times of Observation.—The ordinary observations were made at certain pre-
viously arranged hours and minutes of Gottingen mean time. When the observer,
_ from any cause, was too late for his observations, he was requested to note the
exact minutes when the observations were made; this was done in all cases, and
the true minutes will be found in connection with the printed observations. No
check-clock was used, and none was necessary. Indeed, it is my opinion, where
little confidence is placed in some portions of the labours of assistants, they will
generally, in consequence, be found to deserve little trust in others; and this is
especially true in the work of an observatory, requiring such a various fidelity
and care. Besides the regular observations, large masses of observations were
made during magnetic disturbances and other occasional phenomena.
Reductions —Before the reductions of the magnetical observations could be
completed, certain factors were requisite, representing the effect of one degree
Fahrenheit on the positions of the bifilar and balance magnets, and the values
of a given change of angular position in terms of some known or easily found
unit. It is not necessary that I should do more than refer to the fact, that I
have proved the insufficiency of the processes originally prescribed for the
accurate determinations of those co-efficients and have substituted new ones, of the
accuracy of which there can be no doubt, as they have been verified in every possible
B
6 REPORT ON THE COMPLETION OF
way.* J mention this, chiefly to remark upon the time and labour bestowed on
the investigations for these important objects. Could I have been satisfied with
issuing the volumes of observations from the press uncorrected, as has been done
in many cases, or have reduced them by the official methods, the volumes might
have been published immediately after the observations were made, as all the
ordinary portion of the reductions were performed, and were verified week by
week. The whole value of such observations, for any present use, depends upon
these reductions: erroneously corrected observations are as useless as if they
were uncorrected; and to publish them in an uncorrected state would be
simply to place the volumes on the shelf, with large masses of other like
valuable works, till their proper reduction and discussion at the period vulgarly
denominated the Greek Calends. It is conceived, therefore, that the great
amount of labour was well spent, which was necessary, jist, in attempting
to obtain satisfactory results from the old processes; second, in gradually develop-
ing and perfecting the new ones; and, third, in rendering the factors deduced as
accurate as possible, by getting rid of those errors which are unavoidable in the
employment of new methods. It is conceived also, though this well-bestowed
labour were forgotten, and by far the greater part of it has never shown itself in
print, that the speed with which the volumes have appeared, will do no discredit
to your observatory, nor to its director with one complete and one partial com-
puting assistant.
Printing.— Considerable time was bestowed in arranging the observations
into the best forms for printing; many condensations and improvements were
gradually adopted till, it is believed, that the volumes for 1844, 1845, and 1846 have
been printed in the most distinct and condensed way to be unabbreviated ; it
would have been a great saving of time to have had them printed in twice the
bulk. The proofs were carefully revised by my assistants and myself; almost
every sheet passed through my own hands before sending to press.
Division of Labour.—The general management of the observatory, with the
correspondence and all other matters relating thereto, devolved upon myself. I
took a regular share of the work of observing night and day, especially in the
years 1843, 1844, and 1845, and, with Mr Wetsu, performed the principal portion
of the work of computing, and of the more difficult class of absolute observations.
I also made, with Mr Wetsu, the astronomical observations of transits, &c.,
and performed other occasional work required by yourself.
* The imperfect system of determining the temperature coefficients by removing the magnet
from its place in the instrument to water baths, has been retained in opposition to anything like
scientific caution, after its insufficiency has been demonstrated in the case of instruments by the best
makers, treated aie at least an average care.
-
THE MAKERSTOUN OBSERVATIONS. (
Mr Wetsu shared in all the work of observing and computing. A large
mass of observations of the new planets were made with your large equatorial,
chiefly by Mr WeEtsu, at extra-official hours; these observations have been pub-
blished by the Royal Astronomical Society.
Mr Hoge shared in the regular and disturbance observations, assisted in the
computations, and performed all the mechanical work connected with the obser-
vatory and its instruments.
_ LT have already noticed, in different Introductions to the Makerstoun Observa-
tions, the diligence and care of my assistants. I shall here repeat my obligations
to Mr Wexsu, who was trained from the commencement under my own eye. His
acquaintance with the mathematical details of his work, his skill as an observer,
his fidelity in all he performed, and his appreciation of the practical difficulties
occurring, have been of the greatest importance to me. He was made conversant
with all my own views upon the theoretical and practical questions which so often
developed themselves, and, in return, I frequently derived considerable benefit
- from his opinions.
To Mr Hoag, also, I can award my testimony as to the honesty and diligence
with which he has fulfilled the duties for which he was at first engaged. To his
invention and handicraft most of the mechanical contrivances, in wood and
brass, about the observatory are indebted.
Suggestions.—1 shall now offer a few suggestions, the results of my expe-
rience, on the subject of magnetical and meteorological observatories, especially
in such climates as our own.
Situation.—I need scarcely say that it is of importance, especially for abso-
lute magnetical determinations, that the position chosen for the observatory should
not be over highly ferruginous rocks, even though observations can be made in
the neighbourhood to determine any local error. But there is a point connected
with the placing of magnetical and meteorological observatories which it seems
to me is of very great importance, a point which has been apparently overlooked
to a very great extent ; I mean the influences due to the proximity of large
cities. These influences, I fear, are much greater than may be suspected,
and that not only on the absolute values, but likewise on the variations,
whether magnetical or meteorological. Suppose an observatory placed on one
side of a large city, which contains immense masses of iron, huge piles of stones,
and thousands of human beings; this combined mass has a temperature several
degrees higher than that of the air at a distance; it is a generator of electrical,
thermal, and aérial currents: have these no effects upon the magnetical and
meteorological states of the neighbouring district ? The probabilities appear all
in favour of an answer in the affirmative, and, at least, till the negative can be
8 .REPORT ON THE COMPLETION OF
proved, it is evidently contrary to all sound investigation to incur the risk of ills
we know not of. 1 feel inclined to attribute some curious discrepancies betwixt
the results obtained in town and country observatories to some such causes.
The building to contain the variation instruments and computing room,
should be made of stone if possible, even though it should contain some small
quantity of iron. It is of the greatest importance that the temperature within
the instrument room should be nearly uniform; for this end, stones or logs of
wood are essential ; I do not believe that any small quantity of iron which ana-
lysis might detect would affect the variation results. In the construction of the
observatory, however, an important matter has always been lost sight of: it is
nearly impossible that the temperature in our climate can be very uniform
without a complete exclusion of the external atmosphere. Such an exclusion has
been attempted by sealing up the observatory, and by burying it under ground;
methods which might have served for the instruments, but which would in a short
period have served for the observers too. It appears essential, then, that the in-
struments should be placed in a different room from the observer: this room
should be wholly within the observatory, with passages or rooms around it,
separating it on all sides from the outer wall: the telescopes could be placed in
the wall of this room, the eyepieces being outside; a single glazed aperture with
alamp and proper arrangement of mirrors would serve to illuminate all the
scales. There should be no windows, and only one (double) door into the room
which could be well closed, and would require to be opened only at considerable
intervals. The roof of the observatory should slope only to the north, so that the
sun could not beat on it, or some arrangement should be made by a double roof,
to prevent the heating there from affecting the internal temperature.
By such arrangements, the diurnal variation of temperature would be
scarcely appreciable within the magnetometer boxes. It would be necessary, in
order to determine the temperature co-efficients, either that this room could be
opened for some time to the variations of the external temperature, or that it
should be possible to heat it artificially: this might be done by a stove, or by
pipes with hot water laid in the external room, which could be used as a com-
puting room. The annual variation of temperature might be very much dimi-
nished, and the dryness of the instruments be insured by this arrangement. It
is to the effects of varying temperature and humidity, that the principal errors
are due for the three variation magnetometers.
Having suggested what I conceive to be the best position for the variation
magnetometers, I would remark, shortly, with reference to the dry and wet bulb
thermometers, that they ought not to be placed in a recess to the north; a posi-
tion which, although sufficiently shaded from the sun, is, however, in general
wholly abnormal ; it is generally damp, and if the house be of stone, of a consider-
THE MAKERSTOUN OBSERVATIONS. 9
ably lower temperature than in the shade elsewhere.* The thermometer case
should, I think, be placed to the north of the building, not in a recess, but sheltered
from the sun’s rays in the morning and evening by large double boards placd at a
moderate distance, and permitting a free circulation of the air: the case itself
should be similar to that employed at Makerstoun, or of a lighter construc-
tion, which can be turned round from within the observatory, so as to allow the ob-
servations to be made from one of the windows, the glass of which prevents the ef-
fects of radiation from the body of the observer, or from the lamp during night.
The Declinometer.—This instrument, which is of the simplest possible con-
struction, requires no correction for the effects of temperature; it has generally,
therefore, been the instrument in observatories, the only one from which laws
of variation might be expected with little trouble, yet the observations have
in general been overrun with errors. The errors of the instrument are due
chiefly or altogether to the suspension of the magnet.
The French Academy of Sciences thought the mode of suspension of the de-
clination-magnet of so much importance, that they offered it as the subject of a
prize in the year 1777 ; previously the needle was balanced upon a pivot as in
our common mariner’s compass. The prize was carried by CouLoms, who pro-
posed suspension by means of a thread formed of the silk fibres from the
cocoon. This suspension was adopted immediately after by M. Dominic Cassin1;
the old cap and pivot suspension was used, however, for some time afterwards,
as by Girin, early in the present century. Cassinr seems to have soon become
aware of the effects of humidity, and of separation of the fibres, in introducing
torsion into the thread; for he prepared his threads by first gumming the fibres
together, and then greasing the thread. It is obvious, however, that, after all,
* As I will not again allude to the meteorological instruments, I may mention here my doubts
as to the accuracy of the theory of the wet bulb, even as a measurer of the humidity of the locality
in which it is placed ; and my perfect belief that the determinations of the vapour pressure in the
atmosphere, obtained by means of the dry and wet bulbs, are wholly in error. I have indicated this
opinion in different volumes of the Makerstoun Observations, where I have also shewn that the ap-
parent success of an attempt made by M. Dove, and lately by Colonel Saxine, to resolve the diurnal
variation of the total pressure of the atmosphere into two simple variations, is in all probability due
to the large but erroneous diurnal variation of aqueous vapour pressure obtained in the mean for the
year; which, when subducted from the smaller double variation of the total pressure, leaves traces
only of its own abstraction. I have shewn that this is the more certainly true, since, when we con-
sider winter only, the variation of the aqueous vapour pressure, as computed, being then very small, the
pressure of the dry ar then exhibits a well marked double diurnal variation as before. I do not
enter in this Report into the Results of the Makerstoun Observations. I do not mention the pre-
vious fact to shew that the pressure of aqueous vapour is not involved in the diurnal variation ob-
tained from the barometer, but as some evidence that the pressures deduced from the dry and wet
bulbs are not to be trusted. I have proposed and attempted some experiments for the purpose of
obtaining the actual value of the vapour pressure in the atmosphere, by destroying the moisture in
a closed apparatus, but have not yet succeeded, owing to imperfections in the instrument.
I am glad to learn, since the above was written, that Colonel Syxzs has also, in a paper read
before the Royal Society of London last session, objected to the results from the psychrometer.
Cc
10 REPORT ON THE COMPLETION OF
the threads thus constructed must have performed very indifferently ; for his obser-
vations, which were made at the same time in the Paris Observatory, and in the
caves below, shew differences and variations in the monthly means which are not
explicable by anything within our later, and, as we may suppose, more accurate
experience. Since Cassrni’s time, the improvement of the suspension-thread
seems to have made very little progress. M. Kuprrer, apparently despairing
of satisfactory results from a silk suspension, substituted silver wires in the
Russian declinometers; a similar suspension has also been employed by M.
QuUETELET at Brussels. This seems to me a step towards the cap and pivot sus-
pension. Indeed, M. Nervanper of Helsingfors has found that such suspension
cannot be trusted, since the wires are so affected by temperature that, when an
unmagnetic bar is suspended, it has a considerable diurnal motion: a fact which
I had suspected, and had pointed out as a probable source of error in determining
the temperature coefficient for the bifilar magnet.
The suspension-thread acts in the following manner :—As the thread is com-
posed of a series of fibres more or less twisted, the plane of detorsion, that is, the
vertical plane in which an unmagnetic bar will rest when suspended, is deter-
mined by the composition of series of opposing forces: if the torsion of the indi-
vidual fibres be at all considerable, very small motions of the magnet will cause
them to occupy slightly different positions inter se, or moderate changes of humi-
dity acting to a greater extent upon the external than the internal fibres, and
upon some of the external fibres than upon others, will change the plane of
equilibrium, and in this way force the magnet from its true position. Changes of
the plane of detorsion caused in this way, and by the occasional breaking of
fibres, will explain the great discrepancies occurring in large series of observations,
and the consequent lessening of their value. The importance also of obtaining
properly-constructed suspension-threads will be at once evident, when it is remem-
bered, that unless such are obtained, the labour of years may be rendered of little
or no value. The conditions sought to be obtained in the construction of the thread
for the Makerstoun declinometer, were the following :—Fvst, The absence of all
torsion from the fibre. The so-called wntiwisted compound fibre from the cocoon,
usually employed in observatories, receives a considerable twist in the operations
of drawing from the cocoon and reeling, as may easily be perceived by passing it
between the thumb-nail and index, the method which I employed to remove the
twist. Second, That each fibre when combined into the thread, shall bear an equal
portion of the weight. For this end the fibre was not cut into pieces, but a sufficient _
length being obtained, free of flaws, it was wound round two smooth pins, placed
at the required distance, so that no twist should be introduced in the act of winding;
when a sufficient thickness was obtained, and the ends were tied, a hook attached
to a weight was inserted in place of the lower pin; the thread being formed of one
continuous fibre was thus free to move round the upper pin and the weight-hook
THE MAKERSTOUN OBSERVATIONS. 11
till each length of fibre bore nearly an equal strain. TJhird, That the thread
should be as small as is consistent with durability. The number of fibres for
a particular weight should be determined by experiment; sixteen fibres of the
silk supplied to the Makerstoun Observatory, and bearing nearly a pound weight,
were found insufficient several times, though that number was recommended in
the Report of the Royal Society; this was probably due to some difference in the
thread : a thread of 22 fibres has now performed well for seven years.
I should notice that M. NerRvANDER has proposed to form the suspension
thread, by moistening with hot water the fibre cut into lengths, and submitting
each length in this state to a considerable tension, before combining them to form
the thread.
The Bijilar Magnetometer.—The chief source of error for this instrument is
also to be found in its suspension; wires of silver or of gold have generally been
adopted ; although threads like those for the declinometer have also been employed,
as at Greenwich. I object to the use of skeins, not merely because the errors
due to a silk suspension are probably greater than those due to wires, but chiefly
because no correction can be applied for the errors due to the former, while those
due to the latter can be wholly eliminated. One error common to every kind of
suspension is due to the stretching of the thread or wires, which gives a false
value of the secular change; it is curious that no attempt has been made to
eliminate this error, which could easily be done by means of a small apparatus
for measuring the distance between the suspended magnet and the base plate of
instrument. Any twist in the wires will give a false value of the unit coefficient,
if determined in the usual way by the torsion circle; I am afraid that there is an
equal chance of a similar error with silk threads, besides the probable variation
due to breaking of fibres, &c. The error arising from twist, however, does not
appear, when the process, which I have proposed and used, of determining the
unit coefficient by deflections is adopted. The error which is peculiar to the wire
suspension is that already noticed of a variation due to temperature ; this error,
however, also disappears when the temperature coefficient is determined by my
process, since then, the total effect of temperature upon the position of the magnet
is at once obtained. There remains against the silk suspension the heavy and in-
determinable errors due to humidity, and to the gradual breaking of fibres.
By the use of metallic wires and an apparatus to determine the amount which
they stretch, nothing is required to render this instrument as perfect as possible
but a magnet with permanent magnetism, the proper processes being employed
for the determinations of the unit and temperature coefficients.
The Balance Magnetometer.—\ conceive that with proper care this apparatus
may give considerably better results than have ever yet been obtained from it.
12 REPORT ON THE COMPLETION OF
The points of principal consequence are, well made hardened knife edges, and a
magnet that will not lose magnetism. The temperature coefficients of well hard-
ened thin bars, especially of those supplied by Rogrnson, have been very small ;
and it would not be difficult for the maker, by a few experiments, to diminish or
destroy the effect of temperature altogether in the manner suggested afterwards.
The only subject then remaining for the maker's skill would be the formation ofa
powerful and permanent magnet with a hard well-made knife-edge. I have
already shown in other places, than no dependence can be placed on the coeffi-
cients involving the time of vibration of this needle.
Mechanical Temperature Compensation.—The difficulties connected with the
diminution of the temperature coefficients of magnets, for the purposes of the
bifilar and balance magnetometers, may be, to a great extent, avoided by mecha-
nical compensations. Such compensations, by a little experimentation and previous
calculation, may be sufficiently complete for most self-registering apparatuses, to
render considerations of the varying temperature negligible : even for the more de-
licate apparatuses, however, any incompleteness of the temperature compensation
may be determined by the process which I have employed. The following me-
thod of compensation may be adopted for the bifilar magnet :—Let the upper ex-
tremities of the suspension wires be attached to the ends of two brass rods, which
approach each other within an interval equal to the diameter of the lower wheel,
and let the other ends of the brass rods be jized to a beam of wood, so that an
increase of temperature will cause the free ends of the rods to approach each
other, by an amount equal to the difference of their expansion and that of the
wooden beam to which they are fixed. Such an approximation will diminish the
directive force of the wires, and by a proper regulation will compensate for the
diminution of the magnet’s moment. Ifthe suspended wires are silver, and the
lower wheel is of brass, the coefficient (e) of contraction of the space betwixt the
suspension wires at the top will be found from the equation of equilibrium to be
e=9q
where g is the temperature coefficient. Thus, in the case of the Makerstoun
bifilar g=0°000266, the interval of the wires is nearly 0-5 inch, and, therefore, the
brass rods would require each to be about 74 inches long, in order that the in-
terval be diminished 0°000266 of itself, or 0°000133 inch; the difference of the co-
efficients of expansion of brass and wood being assumed =0:0000085. Mag-
nets with a temperature co-efficient of 0°0001 would require brass suspension
rods of3 inches in length, or less in proportion as the interval of the wires is less
than 0°5 inch.
For the balance magnet; let a brass rod be fixed to the magnet near its south
end, but free to expand towards the north, and having as much to the north of
the axle as to the south; it is obvious that when the temperature increases the
THE MAKERSTOUN OBSERVATIONS. 13
expansion of the brass rod towards the north, if properly regulated, may be made
to depress the north end of the needle as much as the diminution of the mag-
netic moment would tend to elevate it. The expression for the proper weight and
length of such a brass rod is more complicated than in the case of the bifilar,
depending on the weight of the needle, and the distance of its centre of gravity
from the centre of motion. In the case of the Makerstoun balance, for which
g=0-00008, I have computed that a brass rod 10 inches long, sc the weight of
the needle, fixed so that its centre of gravity should be near the centre of
motion of the needle, would by its expansion compensate nearly for the diminu-
tion of the magnetic moment.
In both cases such computations could only be considered as rough guides
to the instrument-maker who, by a few experiments at different temperatures,
might be able to attain a more accurate compensation.
Magnets.—My experience of smal] magnets is not very great, but I feel in-
clined to prefer thin parallelopipedal magnets of a length of about six inches for
variation instruments in a fixed observatory, to either the large or smaller
sizes. If building them of thin bars would diminish the temperature cocfficient,
would the compound magnet be equally permanent? For variation instru-
ments, mirrors and scales would be preferable to collimators for such small
magnets.
The whole subject of the best forms and kinds of magnets, the best for per-
manency, intensity, and smallness of temperature co-efficient, requires a careful
investigation. I am not aware whether any considerable use has been made of
the labours of the Rev. Dr Scoressy, Mr Perri, and others, for the purposes of
an observatory.
Instruments for Absolute Determinations.—These instruments require to be
placed at a distance from the others, and in a place wholly free from iron.
The Inclinometer.This should have the needle placed apart from the reading
circle, and as little metal should be employed as possible for the base: if the
makers would take greater pains in obtaining metal without iron, such precautions
would be less necessary. Such instruments as those made by M. Repsoxp of
Hamburgh, with reading microscopes and short needles, seem best fitted for good
observations.
In order to determine the error of old instruments due to the iron in the
circle or general structure, the following process might be employed with advan-
tage: Connect the needle with a beam carrying a lens and scale, or a mirror,
with the scale at a distance,—suspend this by a silk thread so that the axle of the
needle may occupy its usual position in the circle, the latter with the whole
D
14 REPORT ON THE COMPLETION OF
apparatus being placed horizontal and the agate planes being removed, adjust a
telescope so as to read the scale, and turn the circle, &c., round, so that a given
division shall occupy different azimuths; then from the variations of scale read-
ing (the changes of declination being subducted), the effect of the circle, &c.,
upon the needle in different positions is determined; and from these the effect
upon the needle, when the whole apparatus is vertical, may be easily obtained.
This process will be found much more satisfactory then than that by vibrations.
I would only farther suggest, that the process should be repeated, with the poles
changed, and that the position of the needle should be obtained for the appara-
tus away; since in some needles I have found that the intensity of saturation dif-
fers with the end which is made north, and: that one end is sometimes much
weaker than the other.
The Horizontal Force-Measurer.—-For a fixed observatory, I feel inclined to
prefer thin parallelopipedal magnets, perhaps about 8 inches long, with deflections
of from 3° to 8° according to M. Gauss’s method, rather than the small magnets
and large deflections by Dr Lamont’s. If, however, the 4-inch magnets are used I
prefer a modification of Dr Lamont’s method which Dr Lioyp has empioyed, in
which the deflecting bar is kept always at right angles, not to the suspended mag-
net, but to the magnetic meridian. This subject requires considerable examina-
tion; the discordant results obtained from different instruments, and from the same
instrument with different magnets, are too considerable not to require explana-
tion. The deflecting magnet should never be touched with the hand during ob-
servations, but it should be lifted by a carriage or chair. The expansion of the
distance beam should not be omitted in the computation of the absolute inten-
sity ; where it is of brass the effect of this omission may be quite marked in com-
paring observations during summer and during winter. I may touch upon the
whole subject again in another way.
Having noticed those points which have occurred to me as of principal im-
portance, or as more or less new, I cannot conclude this report without adverting
to the assistance which I have received from different gentlemen during my labours
at Makerstoun.
To yourself I have been especially indebted. The foundation and support
of the observatory is a thing, of itself, which might be noticed as a matter
for gratulation. It is rare for persons with much more extensive means to
have done so much for science,— while they were themselves living and capable
of otherwise employing their wealth—it is rare for them to have done so much
even by their bequests. This reason for thanks I possess only in common with
other lovers of science. It is for your personal kindness, the friendship with which
you have honoured me, the suggestions and aids which I have derived from you
THE MAKERSTOUN OBSERVATIONS. 15
in every matter likely to advance the cause that you have had so much at heart,
and which were likely to enable me to perform those duties devolving upon
me with satisfaction and comfort to myself,—it is for these, and many similar
kindnesses, that I have to offer you my most grateful and most hearty
thanks.
You have acknowledged, in the first part of the Makerstoun Observations,
the assistance which you derived from the advice of Professor J. D. Forsrs.as to
the formation and continuance of the Makerstoun Observatory, and I have to
acknowledge my obligations to him in a more extensive way. As his pupil I am
indebted to him for his valuable instructions, and especially for that love of strict
science which he has sought with so much success to diffuse among his students
in the University of our Scottish metropolis, whether by his prelections or by his
example, through those original and laborious scientific investigations which he
has prosecuted so successfully. In some of the latter of these I had the pleasure
and good fortune to assist him, benefiting as I hope I did, by that cautious and
careful spirit which distinguishes his researches. Besides many other kindnesses,
I owe to his recommendation your selection of me for the care of your observa-
tory: since then, I have been in constant communication with him, either as
my friend and adviser, or in his capacity as secretary of the Royal Society of
Edinburgh, in whose Transactions the work of your observatory has appeared.
To the Rev. Dr H. Lioyn, the excellent President of the Royal Irish Aca-
demy, I also owe my best acknowledgments. It was to him that the observatory
owed its first scheme of observation, and much attention and examination of the
earliest observations. I have also been indebted to him in frequent communica-
tions, and, above all, to his published papers on the instruments and processes of
observatory work, without the use of which my own progress, and that of most
of the Directors of our Colonial Observatories, would have been difficult and
painful labour.
Mr Arry, the Astronomer Royal, I have before thanked for the instruction
which I received in the Greenwich Observatory before undertaking the charge of
yours; but I have also to thank him for the readiness and willingness with which
he has invariably thrown open to me any matter connected with the observations
at Greenwich, which I may have desired for comparison with our own.
I have already noticed the valuable grant of the Royal Society of Edinburgh
towards the printing of the volumes of Observations. I may also notice that
copies of the volumes of Makerstoun Observations have been forwarded by the
Royal Society to the institutions and individuals, given in the Addendum to this
Report, in addition to those entitled to receive them as portions of the Edinburgh
Transactions.
Permit me to conclude by expressing my hope that these labours, to which
16 REPORT ON THE COMPLETION OF THE MAKERSTOUN OBSERVATIONS,
I have devoted my best energies, may ultimately be found to have added some-
thing of importance to our knowledge of the wondrous works of that Infinite
Being, the Creator of all things and the Redeemer of men.
And I have the honour to be,
SIR,
Your very obedient,
And very humble servant,
JOHN ALLAN BROUN.
Epinzuren, July 1850.
ADDENDUM.
Besides those Institutions and Individuals entitled to receive the Hdinburgh Transactions, the
following have had the Makerstoun Observations forwarded to them :—
ENGLAND. Cape of Good Hope, Magnetic Observatory.
Madras, Observatory.
The Royal Observatory, Greenwich. Bombay, Magnetic Observatory.
The Cambridge Observatory. Trevandrum, Magnetic Observatory.
The Oxford Observatory. : Paramatta, N. 8. W., Observatory.
The Durham Observatory. Toronto, Canada, Magnetic Observatory.
The Royal Artillery Library, Woolwich.
The Trigonometrical Survey Office, London.
Colonel Sabine, Woolwich. CONTINENT OF HUROPEH.
Captain Riddell.
Very Rev. Dr Peacock, Ely. ; Berlin, M. Dove.
Rev. Dr Whewell, Cambridge. Berlin, M. Erman.
S. H. Christie, Esq., Woolwich. -_- | Bonn, Observatory.
W. S. Harris, Esq., Plymouth. |‘ Breslau, Observatory.
Cadiz, Observatory.
Dorpat, M. Kamtz.
Geneva, Observatory.
— Helsingfors, Magnetic Observatory.
Kasan, Observatory.
it rvat Edinburgh.
The Royal Observatory, Edinburgh Ta een Beanie
The Glasgow Observatory. REI Openvatoey,
Naples, Observatory.
Paris, Observatory.
ND. Prague, Observatory.
Pulkowa, Observatory.
The Dublin Observatory.
The Armagh Observatory.
Rev. Dr Lloyd, Dublin.
The Earl of Rosse, Parsonstown.
E. J. Cooper, Esq., Markree.
Rome, Observatory Collegio Romano.
Senftenberg (Bohemia), Observatory.
St Petersburg, Corps des Mines.
Vienna, Observatory.
UNITED STATES.
COLONIES, BTC.
Boston, Harford Magnetic Observatory.
St Helena, Magnetic Observatory. Philadelphia, Girard College Magnetic Observatory.
Cape of Good Hope, Observatory. Washington, Observatory.
13-1845,
=
| Observations. January 22
=
Term—Day Magnetica'
«Makeritorae Obserratrons
-
:
ve
10}
eaten
t t rT | CoE
i pape] i if i y Hf | i t i
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& ee Ss &S
1 22GDUIZ IT JUBUIPULID PD PLIZLLO EF Gurus Guay PILI
Ascending CUTVEST ndivate decreast eg westerly declination and incremst rg force
cy
Plate lV.
1845.
5)
‘Term-Day Magne tical Observations. March 19,20
77)
ima
+
fatal
Poe
oF
EERE
1
|
tatty
2 Jee eee
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Wikre
222ZB UJ IIT
atecerting Crrresrndieate decrensiag westerly declination NA ICTERSIG JOT CE.
=}
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gurus fuUeag PPPIZLI
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(ERECERE Ee Ro Pee t :
[ieee oe rrr Poot is
etical Observations. April 23, 2421845.
Term—Day Ma,
Wikerstons Dbrerputions -
Gaingen
Mean Timejary
2PIPPILIZI9 CT F2e2eag wea? QPPLRRLOZLLO FF
MG fOr Ce
terves rndicate decreasiug westerly Aecttnalecn ARMA UHLTEAS
GC
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.
7%
10!
1845.
Term-Day Maonetical Observations. Lay 30,3)
= ammo!
batit s— $-+- + 44 ij tt + — + -
Tet ae = t
; PEPE eee CeCe Ce eect es Het seer
8 — Ee ae tittt Aeieister Lee [ SUGe mE + tht 3
a] its Pea oT eT ee ee et = 5
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«Makoratous,
ary
7
78
4a
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I98
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fue af ued D POL LI ZLLD FT
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ian \2e
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vw vA, a ? os r
fee ss 03 y a — le i » yey
a t panel >. tl sal. Ty ee eae
a ; % he . ea y. : id : a 7 ‘Kere = a & as a 7 é = oo Sal wit um
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Plate VI.
1845.
Term-Day Magne tical Observations. June 18,19
=e
Vahrrstonr Observations -
UWPDPDUIZIA CT GU2UMS
ULZD POPE) 214 DFT pusurfusg PP1}L84
Ascending Curves znadicale decreasing westerly declination and Lrcreasireg fOTCE.
Plots Vil.
1845.
Term—Day Magnetical Observations. July 23,24
Makeratons Vbserrulions ©
a
a
7
10:
T55
WE
: [ ; T Rae
goaeaus I + Eee f x a re
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ro PRP EE EEE EEE ror ro
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‘
|
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Plats IX,
1845-
Term—Day Magnetical Observations. Qugust 29,30
Makeratoure Obserrudions -
Ginningent
Mean ‘fime)
a
ae
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Hh
ai =r
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ptt tt
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ascending Curvesindicate decreustgg westerly bolineteen ANAM UTCOSIG fOTCE
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18435.
Term—Day Magnetical Observations. October 22,23
« Woke itor
Observations
PELa
Uh
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Aseending Curvestindicate decreasing westerly declinaticn and UTERIIG eT CE.
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—
ascending Curves tndicile AECreasng westerly declinaticn and nereasing fo Ce.
Term-Day Magnetical Observations. TLovember 28,29:18435.
ee
JRE Bs
value Observalions
Vuhr.
Count
Mewn, ‘he Ay
RIPZDPIIZIIN CT gueswad ueZ? PULL ZL O ET
43.
25:18
i
ay
9
=
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=
rt
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ia aim
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het
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Term-Day Magnetical Observations.
Obreryabtans
ot
ngen
mej)
in
Muhevstonr
Gani
Mean
22292017239 Purser) poyedzLLa fT
Ef eakaees soseeenect
pula uogfuog PPPTZLAY
Ascending Corves rraieate decreasing westerly declinatren and Crease fOr Ce.
DIURNAL VARIATION OF MAGNETIC DECLINATION AT MAKERSTOUN 1843-1846.
Trans. Koy. Soc. Lidin Vol XTX. Fart I. Platel.
AM ]
ii cu TZ SE
Dec.— Feb. ‘ a ! a SS i ie =: il E il | = fe ie | Mean
Mean
Mean
Mean
Mean
Mean
Mean
Mean
Positive Ordinates indicate increasing Westerly Declination. Scale, 1 Div. = 2 minutes.
———_ Mean of all, ~~. Mean. of undisturbed days. |
=
7
-
wee
DIURNAL VARIATIONS OF THE HORIZONTAL COMPONENT OF MAGNETIC FORCE AT MAKERSTOUN 1843 —1846.
Trans Roy. Soc Edin. Vol XIX. Lart IL Platell,
AM . PM : ane
Dec._ Feb.
Mean
a 2 ee ee er Mean
Mean
Positive Ordinates indicate increasing Horizontal Force. Scale, 1 Div.= 0-0004, Hor: Force =1.
—~/ ™— Mean of all. we Mean of undisturbed days.
ob CRO 7 RYE Te Od WEF BO TAA OUMNO AMET GAT We eyeny eee arate h
wren
Cie | a : ; eae |
awe nals Lois £ . aN R x “af
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DIURNAL VARIATIONS OF THE VERTICAL COMPONENT OF MAGNETIC FORCE AT MAKERSTOUN 1845 —1846.
Trans. hoy, Soc fidin. Vol XTX, Fart Il. Plate HI.
= Z|
PM
A Ewes
6
ROTO eo. 8. “REPO AO Te 10 2 8 8 Ae (i Ol NOLO DSS: PG ahs 6 37 Gi sOundO MIO
2 : ae: ‘ 4 2 + BiL 2,
aoe ie i y - | |
|
| | |
ia pieces a a: | | z pest lle | ee) ES Lae
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s. BLA, Ls ie S| . = = a =i
|
SS es CR VR Mc 2 ee eV aces cer cec R _| Mean
seer eleeee Mpehserel iecnve === ice tteeranteeersenky yee =
— TLS ES = al ae ils = Z
ay hoo ol EE? wail nde | etl le = =
att a) wits ae neeedS = Ss oes sole — | a - (ee ——
| |
Spt] tl + 4s ace esas eee a
Pe yceml teed 8 beam [fecal bell seen eee pass lh ee
Mar._ Apr. Sha : . 4 \atecis
i es ees Po es 3 pee 2
bie wwe zl ale | aes ‘ ‘2 a os iM y eit a ut mS 5 z: =a
jee al) ee Api ee ae Be mete Ce ee oie ae eee
pee =| CS ee Ma Ie) | SoHE eae ee oN || JS ae ee
—— ~— Sn ie = —— — i ———_ —— =e = == OS = = ——~ —— +
Ye Sj ee 8 I a = = Ba ls ahead =e |
dane apis eee peel DRE Pear ar |
May, June |_| |." : Mean
BS. é ae | boss othe se ae = SS
aS _ = os ree + ae tt _ —_j—__— —}—__— —t— —| — — —— | = —
| ESS Es | A woo 4 ae thee ee £
|
July, Aug. : Biseaies | i. |__| Mean
Si pam Py oat Alte eS coe Sagan a fll ed | Ae oe NG: hos 3 (re
| | |
_— ibe tea (4 a Tera Bons ie a) | ie ~ lf sli = any ar =i Es, | Ti |
ee oe ae) il bse hoe elle oo = = So —o
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Ne aleeaal | |
sea ~ +—— 1 — ae te =F See = — hee i= — a ete |
2 a NV re ee 2 eas Es Be De a a - a meee Mean
eae Le annoaneane i Pa) SAAS Rees sal i [. aE RO cs i Sit (ee uf
2 - 28 - LIE a PAs pscen aoe sh = aa te z| = s
| |
} | | | | |
= — i ex} ase = ate —_ + ae =) — et
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pa si] | | | | | |
| |
w F i Ul THE ale ols ales vacate er | <a lie all anet |lat Pl a [eee lies a \
Sept. Keb. Soe a SEE — ee Bee L — Mean
1 eae | eee ee Wa a ee) Be. t ig | L a alee, fom ee AVES! *Peeneseeal Ee lige eed meieyal 3 ss Peal |
+---— — -+-— i --|——---—+-- -— } —-.-|- -+-—_} ale —-- | = — — eS
Weal tht lee hl ead mse) be = oat) ae le os = ia ey In t | = th (Sas Ges |
|
a * ae Pe a) pigs a, = ate! + it. 3 a F = aol ec 1 ie ae 1
| | | | | |
| | |
| KE A A 8 oe ae ca aot ESS. i Ne LS Ha ae 4
Mar. Aug. ee pele es Mean
os pial amelie WN SI Hm MN aI NC testes OL ahead ,
rn eres bora — ~—- ~ 4—-—1-~e-- -— - — —$+ OS OT oY rd
| |
eee eel Mice = lL Lae on | SS Paes aE ea. cl pe ey ee ;
& ue :, eis ee = Bs al ba3 | aa Sig) Ee Sel] Scale 4 eee SS | Se]
| | =i
ae | Ss SA TE a1 RI a a a 4
| | |
|—_j - —+—__+-—}— i —— — _ == —- =— ——s t Spy —— —— ' = =
| Nesarg Pec }
elles SS iver ES uae eae so. u PS oe es S| a SIG,
= i | | [ | | | |
Year ee Wee Ba ee | : - | Paeeeia ene | ea Se see | Mean
= on | Ste... | ae ee SS ae a
Ae ioe ee as sles = | S ht | VS ea AE
ie ssl ee iP ul
; Seales isal al fe eae Pe Nae ieee eae ail aad (os Re ec j =
| | |
fa Pea =. | a a E L ae - Vee} | hie Se a
Positive Ordinates indicate mereasing Vertical Force. Scale, 4 Diy.= 0:0001; Vert. Force=l.
~~ \— Mean of all. ~. os Mean of undisturbed days.
5 Engi by Geo. Aikman
~~ ew~ .
e iGTetAAaALM q af 4 2 y As ? 7 -
Zé. tt 3 ee AY ‘a6 >t} :
‘ WPA? PATS é if
. ‘ a {th
“ea ie oan
d ry
er ee eens
rc. SSsats =
NETIC DIP AT MAKERSTOUN 1843-1846.
G
OF MA!
DIURNAL VARIATIONS
Trans. hoy. Soc. Lidin. Vol. XTX. Part Il. Plate IV.
Mean
Mean
IO, Tt AZT
Dec._ Feb
Mar._ Aug. a
Scale, 1 Div, = 0-4 minutes.
Negative Ordinates indicate increasing Dip.
~.. Mean of undisturbed days.
Mean of all.
Se
Eng? by Geo Aikman
FF ~
aa
+
a
~
a cate
DIURNAL VARIATIONS OF THE TOTAL MAGNETIC FORCE AT MAKERSTOUN 1843 -1846
Trans. Roy. Soe Edin. Vol. XIX. Part I. Plate.
AM
ae,
Saye
|Mean
|
| |
a
I
IZ.
Jo
9
é
Positive Ordinates indicate increasing Total Force. Scale, 1 Dw-0-0001; Total Force
=.
Mean of undisturbed days.
~~ -=~Mean of all.
Eng! by Gea Avemar
ANNUAL VARIATIONS OF THE MAGNETIC ELEMENTS AT MAKERSTOUN 1843 - 1846.
Trans. Roy. Soc dire Vol XTX, Plate VI.
=]
Jan, Feb. Mar. Apr. May June July Aug. Sept. — Oct,
Nov,
| Pe ala Be ee eee eee a ee ey
| “Se agar ah Mae el eo ett Age ae
Dec, Jan, Feb. Mar, Apr, May June
| Pa) es
| Seale 1 division =O° 4
:
Nae |
ees ee Ee
2 oe en eel
| |
ARES Ae
T
|
|
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| |
t+
we
|
|
|
ae 5
e | | i
= | — — |
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| < See ealesaierelie 2 4)
| \ | | |
| | be re Seen
| } | |
iar eS eae
am) |
eee J S|
Annual Metions Monthly Motion
Scale 1 division =0'08 Scale 1 division =0'02
ie? i el ined aloes ue (=|
a og) | ae | eae |
S al | |
| | |
| |
Sea eS ee ee eee |
& few | | |
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OF THE NORTH END OF A FREELY SUSPENDED DIPPING NEEDLE
MAKERSTOUN
DIURNAL MOTIONS
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METEOROLOGICAL DIURNAL VARIATIONS AT MAKERSTOUN 1845-1846.
Trans, Roy. Soc, Edin, Vol XIX, Part IT, Plate IX.
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