MAKERSTOUN MAGNETIC OBSERVATORY... ccare 1. Roya soc-Trans.BdinVol. XIX. 5 0 10 20 30 40 FEET fat ee ——— Ee: <= = — | WALA Iohinston se. TRANSACTIONS OF THE ROYAL SOCIETY OF EDINBURGH. VOL. XIX. PART I. CONTAINING THE MAKERSTOUN MAGNETICAL AND METEOROLOGICAL OBSERVATIONS FOR 1845 anp 1846. EDINBURGH : PUBLISHED BY ROBERT GRANT & SON, 82 PRINCES STREET; AND T. CADELL, STRAND, LONDON. MDCCCXLIX. 7 LALO ?% OBSERVATIONS MAGNETISM AND METEOROLOGY, MADE AT MAKERSTOUN IN SCOTLAND, IN THE OBSERVATORY OF GENERAL SIR THOMAS MAKDOUGALL BRISBANE, BART., G.O.B., G.C.H., D.C.L., LU.D., F.R.S., F.R.A.S., H.M.R.I.A., PRESIDENT OF THH ROYAL SOCIETY OF EDINBURGH, AND CORRESPONDING MEMBER OF THE INSTITUTE OF FRANCE, 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. CONTENTS. PAGE IntRopucTION— Position amd Description of the Observatory,+++++++.1.:++-ssseeeceeeeeseeseneencesuensccaensenseseaners ix System of Observation, and Staff of Observers, xi Declinometer— Deseription of the Declinometer, ---+---20sce...ctssc+esesccesscosccnsscotesscnsesccncerseecouce xii Values of the Scale Divisions, Geasasicaale culsnsnuaisescveses cevssucwededeae deviants dm acchasutcnie ces xiii Scale Readings for the Magnetic Axis, doulaatm stay aie owelusia ewelcisidieled’eiank'dawaakatccieaaekacee se Xiv Corrections, -..--.-+ wididaveis saslwuslsvinleae Sawielnneinielsivelsiels ce'siudels vcldevieweldwesiine recs teeciecsss ceettedes ta Xiv Removal of Torsion, &€., «-++++++sseeeeeeee Fore Neviedevivva cee seeeetisecsreseeiee eee uae xv Time of Vibration, --.-..-- xvi Method of Observation, Xvi Absolute Magnetic Declination, --.---....... = Xvi Unifilar Magnetometer and Observations of the Absolute Horizontal Intensity of the Earth's Magnetism— Position and Description of the Instrument, Seuiet wie oetiensaes'squ sas ppeisieiade¢-siacwsiea'v'sslseu X1x Formula of Reduction, methods of Observing, &¢., +++-::::ssseeessceseeeeeccecceeeteeeas Xx Results of Observations (see Addendum). Bifilar or Horizontal Force Magnetometer— Description of the Instrument, seninetrsieisleta(ciesivalssisisers'enis ue sacieceines = cpiee ace slananetaee nacre SATOOC XXV Usual formula of Reduction, XXVii New formula of Reduction, XXVii Determinations of the Coefficient of Reduction, oneenneusinelguSis|siaieasiaaa ture aaaacks mentions , 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—3) read C X tan (u—3); C being a constant INTRODUCTION. POSITION AND DESCRIPTION OF THE OBSERVATORY. 1. The Magnetical and Meteorological Observatory at Makerstoun, in Rox- burghshire, was erected by General Sir Toomas MaxpouGaLt BrisBanz, Bart., in the year 1841. The geographical co-ordinates are as follow :— Latitude, 5 < : ; ‘ 55° 34 45” N.* Longitude, ; : ; : : 02 10™ 3:58 W. of Greenwich.t ‘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 1 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. ops. 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 ron 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 jong 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. xe XI 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 icreased 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 Hoce, 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 Tuomas, 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 23, 14, 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 Jonny WetsH, 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 BrisBaNne, 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 Jon 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 Hoee 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 Gruss 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, ¢; near the other, at a dis- tance from the scale of about 12 inches, the focal length, it carries a lens of 1} 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. xiil 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 h, 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. AII 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 TRoucHToN; 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 = 0-6725* 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 anv 1846. The adopted zeros of the declinometer scales are as follow :— Reading of the long scale at the magnetic axis, . é 4 . 257:14* Correction for the effect of the bifilar and balance SN 3 : s + 0:16 Adopted zero for the long scale in 1845 and 1846, 6 ; - . 257-30 Reading of the short scale at the magnetic axis, . ; j ‘ : 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 are w by turning the arms of the torsion circle w, the torsion is w—u, and the equation of equilibrium is m Xu=(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 are equal to radius, whence, ifm X = F, Paras - 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. 26% 23%, 1844. Arc-! w = { +3005 ave") w= {is9 “eq; mean value of ® = 0-00140. * For details, see Introduction to the Observations for 1843, 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 cylindrical 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 magnetic 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=—084 (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 7}° west of the magnetic north ; and the brass bar was thereafter made to coincide with the magnetic meridian. Feb. 54 34" 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 234 232" 1845. Torsion removed, — 183°. April 24 2%", 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 8. 3° W.; ultimately it was N.5° E. and S. 5° W. The torsion circle was turned 3}. May 84 33", 1845. Torsion removed, — %. June 184 21" 1845. Torsion re- moved, + 14°, Sept. 214 22)", 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. 297 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 AND 1846. zontal intensity. Dec. 291 193", 1845. Torsion removed, — 11°. Dec.-30% 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 } 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. 154 233", 1846. Torsion removed, — 9°. Feb. 16a 0*—2", magnet with short scale in declinometer box; 3%—5" deflecting bar vibrated in declinometer box. Feb. 164 53", 1846. Torsion removed, + 5°. April 134 221", 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 144 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 — 14}’. 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* Docasnisaemetadsusudeserennaceecneestcectentaretie tise 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, b, and a+2b+e c, the mean position is deduced by the formula AW The are of vibration is seldom above 3’, and is generally less than 2’; during disturbances, however, the are 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 :— * 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 BrisBaNeE 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 anp 1846. e xviii INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AnD 1846. TABLE 1,—Determinations of the Value of Angle A. Readings of Horizontal Circle For Wire of Declination Telescope. For North Mark. Verniers Verniers 17. The mean value of angle A from all the observations . ee e | =23° 50’ 24"5 in 1844, 1845, and 1846, . : The mean value of angle A from all the observations | =23° 50’ 23"-9 in 1844, ' ; k : ‘ : The value of angle Z (Table 8, Introduction, 1841-2), = 1° 37’ 388 Whence angle A+ Z, : : : : : =25° 28° 2"7 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 = D. UNIFILAR MAGNETOMETER. xix 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 rests 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, 33 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 Sims; 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. ps INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846. 19. The value of the absolute horizontal intensity is determined from the ob- ser vations as follows :—If r 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 w 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 for mula m 1 af —=—-'* tan u x 1 a He r where p and ¢ 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 (bs—b,) 1g (ta—t) tan w=tan fi {(a, + yu uy + uw +t) —f (d,+,d-d, dj+,d)} + *)|- where a is the angular value of one division of the long scale, fis the coefficient for reducing the divisions of the short scale to the value of divisions of the long scale ; v, and ,v 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, ~, and ,w are the mean scale readings when the deflecting bar, at the same distance, has its north pole towards the west: d,, 1d, &c., are the simultaneous mean scale readings of the de- clinometer corresponding to wm, yw, &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, ¢, and ¢, are the mean temperatures of the bar during deflection and vibration respectively. The values of log 47° tan w are given for each distance, pages 166 and 167. 20. The following a are the values of the constants used in the previous formula :— a = 4035 (No. 8.) f = 1115 (No. 8.) = 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. xlii. UNIFILAR MAGNETOMETER. Xx 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 are 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? mX = Te where 7 is the ratio of the circumference to the diameter, T is the érue time of one vibration of the deflecting bar deduced from the observed time T’ by the formula : aw 3 T=1(1-4 z)a+s) (tecan) where a and a’ 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 ee 2 K=3(77+7/)M. T2_-T? MAG. AND MET. oBs. 1845 anp 1846. if xxii INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 anv 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 ¢rue 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/(1-4%)a +0) (1-555) {14% -4)-96'-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 b, are the mean bifilar readings when the times of vibration T, and T, were observed, qg is the temperature coefficient for the deflecting bar, given above, f 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 K x? a om T? Ca) m om. 5 5 5 5 ° — is the induction coefficient, and is obtained from the formula me n—s where 7 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, 6 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 being 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. XX1ll 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 (= @) in length; 0-0719 feet (= 6) in breadth ; 6216-7 grains in weight (= W). The value of K had been previously determined a + 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. The deflecting bar was vibrated in a stirrup of silk without any appendages, the results are : from the formula x W. In January 1848, it was thought desirable to de- Jan. 114 1848. Observations made by chronometer, DENT, No. 1665, rate—5*-0. Semiares of vibration, are—! « = 103° are—1 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 im 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—1 « = 12°, are—1a = 7}, temperature of bar = 38°-0 Fahr. Rate of chronometer, Dent, No. 1665, s = — 5s-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, ® = 0003966. 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 in a 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., & = 0-000135, 4, — 4, = + 04, g = 0000288. The true time of one vibration with the ring (reduced to the value of X for T,) T, = 2758403. 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, {1 +e (4 — 38)? where ¢ is the dilatation of steel for 1° Fahr. = 0:0000068, and ¢, is the temperature of the bar during vibration. a + &? 12 26. The following are the observations for the value of the induction coefficient From the formula K = W, log K = 2:9096351. 2” Nov 15, 1847. A strong wooden beam having been fixed horizontally in the m 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.* * It 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. Interpolated Gottingen Position of Bifilar Reading, Sum of _ | Difference Value of 2” a Mean Time. Deflector. Reading. Deflector | Deflection. | pepections. | of Deflec- Away. tions. Se. Div. Se. Div. Se. Div. Away 157-12 N. Pole S:| 265-35 156-05 N. Pole N. 42-57 154-97 Away 153-90 Away 154-22 N. Pole 8. 263-60 154-95 N. Pole N. 43-47 155-47 Away 156-10 Away 156-75 N. Pole 8. 266-90 157-32 N. Pole N. 46-75 157-72 Away 158-20 © Away 150-50 N. Pole S. 259-12 N. Pole N. 39-57 Away 150-27 Away 150-75 N. Pole 8. 259-46 N. Pole N. 39-67 Away 151-47 Away 151-27 N. Pole 8. 261-10 N. Pole N. 40-60 Away 151-77 Away 152-17 N. Pole 8. 260-97 N. Pole N. 39-97 Away 151-60 27. The adopted value of °”* = 0-0112. 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 HoRIzZONTAL 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, Z inch, and { inch, is placed in a stirrup 6, which carries below it a tube c, having a lens d MAG. AND MET. oBs. 1845 anp 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 /, 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 Apr 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 wv, that of the lower extremity or magnetic bar in moving the latter from the meridian, the equation of equilibrium will be 2 +) a . m X sin u — W—sin m, X, W, a, and J 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 (w = 90°) divided by it, gives aX aie na cotv+¢ (Q+2e—e') n being the number of scale divisions from the zero, or scale reading when u=90", athe are 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 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 Pe TEN EMD Al poeee TERR aI IS CTR 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 7, and the resulting angle of deflection be n scale divisions =a, the equation of equilibrium will be 2M pg aes m{X+2% (14+ 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"; xxviii INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AnD 1846. whence PEO TIMOAL TG) eS ree) i If the deflecting bar be now employed to deflect a freely-suspended unifilar magnet, in order to determine the value of = as in the ordinary observations for absolute horizontal intensity ; w being the angle of deflection for a distance 7, we have 2M —— = a tan wu De ah 142444 aared Tey If the bifilar and unifilar bars are of the same dimensions p and q, 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=7, then peice iy XS > and ASS (3.) If, however, the bifilar and unifilar magnets are of different dimensions, the value 2M x p, and q being eliminated ; that value being substituted in equation (2.), and deflec- tions of the bifilar being obtained for different values of r, p and q also may be eliminated. of should be obtained from the deflections of the unifilar at different distances, 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 seale 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. Deflections of Bifilar Magnet. Deflections of Declination Magnet. Resulting Value of k. Distance. |Deflection.| Mean. Distance. |Deflection.| Mean. | Therm. Se. Div. Sc. Div. 136-0 ace 6 | 0-0001345 45-85 45-00 ‘6 || 0-0001359 24-20 23.70 -6 || 0-0001342 65-4 34-9 81-60 89.40 -O0 || 0-0001350 42-05 ae : 0 | 0-0001364 14-34 14.58 ‘0 || 0-0001346 119-0 a ees Hah BAZnARA 60-8 -_—— 21-0 peor 0-0001351 > : eo} = I ES Se eel to S co 0-0001370 0-0001350 nienZ 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. ops. 1845 anp 1846. h xxx INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AND 1846. bar having been deflected through an angle (wu — 5) as in Dr Lamont’s method, the variations of horizontal force were deduced from the scale readings, reduced to angu- lar measure by the formula AX x =— cot (wu — A) (Au — Ad) + q(t — %) where wis the angle which the deflected magnet makes with the astronomical meri- dian (negative when to the east) and 6 is the westerly declination, su being the are value of the change of reading, and 4 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 t 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. eee i 3 hats ae D t q (t—to) k Se. Div. ° ’ ° 7 May 7422" 0™ 4799 —14 42°88 25 16°82 48-4 ‘ 23 30 5330 —14 29-56 25 986 +9°007114 42, —0-:000063 0-0001828 Bi 1.82. 5yg 02 1denes 25k noes dg-1,. — 9 000084 The mean of the two values of =0-0001336. Date. 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 seale readings were to those of the bifilar scale readings as 1 to 0-974, the value of k for the unifilar being 0-0001389, therefore that of & for the bifilar = 0-0001358. 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 8. ofdeclination magnet,4=0-0001349 moe hacseen sweat INE ERAGINS) © On syaeyajnentoncoccanece” LOSE RAED fis neckonaaGecc ce MOReRRRadere adc UFO NOH SIE Large detiectors:E5 jy | Tater nsccrhestscrc acts DNtaM CMEC Rciaccaceec cask oorcae deat k=0-0001360 smiresPreveoberes S. Pee eae ee EAD Wee itrdrecctteccsss+ccss-.e2ee =O OOO os 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=0:000135 eae 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 = 0:00032675 x cot 69°:3’ = 0:0001251. The ratio of the true value of & to that determined by the angle of torsion — ea 1:08. 40. The true values of k from 1841, obtained from the formula 1:08 x a cot v are given below :— July 114205 1841—July 237 5"1841,... . . . &=0-000128 Aug. 4 20 1841—Sept. 7 5 1841,.... . k=0-000164 Sept. 7 20 1841—Sept.30 5 1841, ... . . k=0:000158 Oct. 6 20 1841—Oct. 19 28 1841, ... . . #£=0°:000141 Oct. 19 23 1841—April27 4 1843, ... . . k=0-000135 April 28 2 1843—Nov. 8 22 1843,... . : k=0:000130 Noy. 10 8 1843—Dec. 31 12 1845, .... . &=0-000140 Jan. O 12 1846, and afterwards, . ... . . k=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 10¢ 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 6 = 0, is ob- tained from the formula,* 2 sing B cos (v+8 N= eos (0 +5) ye ge a cos v cos v = A +n2B +t¢ 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 9’ is the > p g ? q temperature coefficient in scale divisions. * Introduction, 1843, p. xxxiii. 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. 18415 Om™— 46m B= —T1° 12’ A= —658 B=1:052. 1845. Apr. 13" 15" 46™—21" 30™ B= —0°9'5 A= — 8:5. The arms of the torsion circle were turned to their original position at April 134 21" 30”. Se. Div. 1845. Dec. 347" Qm— 49m B= + 3°13'5 A= +1600 B=0-°857. 1845. Dec. 3475 49m— 44215 B= —O° 65 A=— 55. The arms of the torsion circle were turned at Dec. 4¢ 23", to within 1’ of the original reading ; the observations from that time till January 1, 1846, have been corrected by — 10 sc. div. for this error of torsion circle reading. 1846, January 1734", 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° 165 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 04 13", 1846 to 1¢ 38 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 se. 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) = 5087; 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, 2 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 smal] 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.* 25% 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 25° 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+¢ ci formula The mean thus obtained is corrected to the temperature of 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 ”, given in this volume, are obtained from the formule 1845. n=N + 300-0 + (¢—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= (n — 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 RoBinson of London ; it is com- posed of a magnetic needle cfc, 12 inches long, about # inch broad, and about 3. inch thick, with knife-edged axle 7, which rests upon agate planes ; brass rings c ¢ 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. xxviii., xxix. MAG. AND MET. OBS. 1845 anpD 1846. a xxxiv_ [INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 AnD 1846. / is indicated in the figure); those on the other, for viewing them and determining their position, which is done accurately by the microscopes 6 b carrying micrometers ; the micrometer heads a a@ are divided into 50 divisions. The supports g of the Na a mo we ln tl md 1 : needle are fixed to a marble slab m, cemented to the stone pillar s ; the horizontality of the slab is indicated by a level m, the lower edge of the rectangular box is covered with velvet, and it is screwed hard to the slab by the screws i7. A four-fold cover of thick cotton cloth was placed over the rectangular box, July 18¢ 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 ¢ A Am —— = tan € ae — — Ys m where T tan € = cot 6 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’:1003.4 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 Com- of of one mence- | Vibra- | Vibra- tions. | tion, i] tion. | Needle. res Are at [Number] Time Fd Gottingen of Agios Gottingen Mean Time, Vibra- | Vibra- Mean Time. * See Dr Luoyn’s Account of the Magnetical Observatory of Dublin, p. 38. + Introduction, 1843, p. xxxviii. { Introduction, 1841-2, Table 15, p. xxxv. xxxvi InrRopUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 anD 1846. TABLE 4.—continued. ees Are at |Number| Time | Tempe- mays Are at |Number| Time Araneae Com- of of one pains cottage Com- of of one | rature i mence-| Vibra- | Vibra- of hs mence-| Vibra- | Vibra- of ment. tions. | tion. | Needle. dad. h. dad. oh. r 8. @ 1845. 1846. : June 10 10 |) 4:3 30 8-27 | 63:0] Feb. 4 23 4:3 18 6-63 | 41-7 June 12 8 3-7 25 9-17 | 74-3 | Feb. 22 23 || 3-9 . June 13 9 || 3-7 | 20 | 9:22] 74.9 | Mar. 18 22 | 3.7 June 17 1 4-2 20 7-90 | 64.0 ] Mar. 25 1 4-1 June 27 22 |) 3-5 20 7-33 | 54.0 | Apr. 26 22 | 3-5 July 717|| 36 | 20 | 8-05] 64.3] May 123] 46 July 11 23 2-9 15 7-48 | 57.4] May 18 22] 4.2 July 14 21 3-8 20 7-35 | 55-2 | May 21 9] 4.5 July 20 22 3-6 20 7-17 | 56-0] May 25 8 4-1 July 29 22 3-6 20 7-36 | 56.3 | May 26 22 4:0 May 27 22 || 3.7 3:7 3-1 3-1 3-5 4-0 48. lst, 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 24¢ 184, July 26% 3, November 54, and November 84 215, 1844. On all these occasions the needle was vibrated through large ares, 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 +0505 to 0°10 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. 274 1844, the times of vibration after the adjustment were Feb. 1°— 6%, 1844, Mean time of one vibration, 9°24 Temperature of needle, 33°-9 Pepe Wein oS costes stecteunenee tiecanthe SOD sae oath cette emote 32°°0 Dec: ee OR ch a co Sxitadesedalt gst deatbneenadpetatided GE DO ne Pees RR lk te 33°°7 Deere LSAT, 1.2.8. oe. acrasnnesacseneceueseosee E(UBI) “eens veacooneratnoscoceuenenne 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 in the magnetic meridian, nearly horizontal, mean position + 160 mic. div. Are of vibration at commencement, 32’. Time of one vibration, 85-05. 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, 8*-12. * Transactions of the Royal Society, Edinburgh, vol. xvi., p. 72, Table IV. MAG. AND MET. oBs. 1845 AnD 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. Are of vibration at commencement, 21’. Time of one vibration, 8:00. Finally, the horizontal screw was turned out 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, 8°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 less than 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 144 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. Ave of vibration at commencement 84. Time of one vibration 115-27. Needle vibrated excessively by a pair of magnetic scissors. 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 deflector, the following observation was made : Are of yibration at commencement 3°0. Time of one vibration 115-28. Performed the same operation with the deflector, and again observed, Are of vibration at commencement 8-0. Time of one vibration 115-12. Now lifted the needle by the Ys, lowered it, and observed the time of vibration with a large are. Are of vibration at commencement 1000. Time of one vibration 11527. BALANCE OR VERTICAL FoRCE MAGNETOMETER. XXXIX 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 900. 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 (¢.e. west ex- tremity) beg moved towards the north, the following observation was then made : Are of vibration at commencement 9"0. Time of one vibration 10558. 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 imelined 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 (/) 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 seale 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. iF | i] | Bar B. Bar W. 3 Bar W. | Order | Dis- | 75 sal nF N. end i aed N. end | Deflec- ong Obsor: Tea ray eee (ech et aL See -_ ll Obser- |__down- amet | ti S,. || Value of &. a. | vation. | Balance. || vation.| Balance. || vation. Balance. vation. | Balance. | | | | Mic. Div. | Mic. Div Mic. Div. Mic. Diy. | Mic. Div. | Mie. Div. | + 36-7 4 19-E — 49-0 | | + : 38: — 201-5 — 382-2) 308-5 | 309-0 | 7.94533 || 0-0000099 + 282.0 — 479-7) 391-7 | 392-3 | 8-06003| -0000099 + 444. 32. 401-2 |— 625-5) 525-7 | 506-5 || 8.18828) -0000099 + 375-5 | — 583-5 3 |— 850-5 730-4 | 731-5 | 8-33067)) -0000099 + |— 890-0 |) — 1227-0 1065-7 | 1067-4 | 8-49577 | -0000099 + ~ 1125.0 — 1505-5 | 1328-9 | 1331-0 | 8-58925 |) -0000096 1 2 3 1 5 6 7 — 44-5 | | — 280-7 — 349-5) 289-6 | 290-1 | 7-94533 | 0-0000101 + 899-0 9 |+1172-0 — 912-5 — 1188-0) | 1045-4 | 1047-5 || 8-49577 || -0000103 | | BIFILAR OR HorIzZONTAL FoRcE MAGNETOMETER. xhi TABLE 6.—Observations of Deflection of the Balance Magnet suspended horizontally by the Declinometer Thread, January 10, 1848. M i fy Distance of | Observed aed pees Value of | Resulting | Temp. of i Deflec- Melee for One ftons tion. Torsion, Se. Div. Se. Div. Se. Div. y 26-96 23.78 25-37 | 1:00851| 25-59 0-746 Se. Diy. 56-83 48.09 | 22°46 52-91 129-88 en bee 118-43 From the deflections, Table 6, and the formula M ~pP q x= 7 tan u a+3 + =a) we find log = =9'13614 — log p, = 988791 — log g, = 9°11654 From the previous equation, M 1 banat Soi A1+4,h the values of z , Py and q, given above, and the values of r from the first column of Table 5, being 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 AWo ts WE nh Y Sa Gnas gt ga? whence Ae tan w n tan 6 : AY : ent where k is the value of rr for one micrometer division, uw and n are the corrected horizontal and vertical deflections for the same distance 7; the former in angular MAG. AND MET. OBS., 1845 AnD 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 ; @ 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 &, 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 BUGGED the two series. Mic. Div. Mean balance reading corrected for temperature, June 29% and 302, . = 383:0 Reet eas chee bae Soh e aCe men nineutes ar Sewage Mere Teen July 34and 44, . = 957-0 Difference of readings before and after adjustment, . . . . . . = 5740 Mean balance reading corrected for temperature, June 19—134,. . . = 3965 SSE caidas ex ease secant a roee oot canna een ae wien Soslas ae > June 154—274,. . . = 3960 Mean change of reading for 14 days,. . . . : =— 05 Mean reading, therefore, before adjustment, amesbapdih to J ai: La Pee 3 i2)51'3, Mic. Div. Mean balance reading corrected for temperature July 64— 184, = 966-4 ere Apucnracctossnoscods os abbcosebses apes aosospasceen ULM PUSS. Gata a CRM ena ato) Mean change of reading forl4 days, .........:..=—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 bofore’adjustment; byer conse ceasnch deed. ciate cence tend lle Teend TEMPERATURE COEFFICIENT OF THE DEFLECTION MAGNET. xl 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. 1¢1845—July 141846. R= 700 + 9’ (¢— 26) +»; July 34 1846—Dec. 314 1846. R= 124+ 7 (¢ — 26) +0; increasing tabular values, therefore, indicate increasing vertical force. Tue TEMPERATURE COEFFICIENTS OF THE DEFLECTING, BALANCE, AND BiritaR 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 xli. and xliii., 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 of 6 ................- ee erate eee GS 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., Introdue- 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 ( = 0:000292 Mhejmean of WS. coweedeectoneas - scomeceeaerrereaas GSS 7a tas. 2- 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 AR=A4+AX. If the difference of the mean temperatures of the magnet for the same two days be 4 ¢, then the correction for 1° of temperature in scale divisions TEMPERATURE COEFFICIENT OF THE BIFILAR MAGNET. xlv whence 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 TAR 3AxX mia en Laas 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 a sufficient 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 q’, and this with the more accuracy the larger the sum of the differences of temperature 3 aé. Again, if the differences for which a # is negative are summed, we shall have TAR Zax NE A , I= The sign of the first member on the right remains as before, since a R also changes sign. Reasoning as in the previous case, ¥ 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 « t be inaccurate, it must be supposed either that the horizontal component remains constant, and therefore, that 4 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 « X is the same for both equations. In the latter case, it is evident that by taking the mean of the values of g' 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 a series of comparisons are given, pages li, lii., and hii., Introduction, 1843, from these it appears : 70. Ist, That the value of q’ 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 ¢ 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 2 A R. MAG. AND MET. oBS., 1845 anp 1846. m xlvi_ INrRopUCTION 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 independent 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. Period. iff. bs of Period. iff. 7 of 1844. Se. Div. 1845. May 9—May 24 2-22 | Jan. 13—Feb. 12 May 29—June 28 1:83 | Feb. 26—Mar. 28 July 17—July 30 : 1-77 June 2—July 2 Sept. 2—Sept. 25 1-96 Dec. 8—Dee: 31 Nov. 26—Dee. 13 1.99 Robe cn oupenctensicicwasce ceeanee snes Seam ax= 1845, Eder aot een ateer bap et mapgates sie cos icic + spssellosicwts g — 191 tenets seen eeeenecenscneeseeereeteneaeeee 1844, giving the results the weights TAZ, give Gee ectrvaterststetsosssebcntars ceneanedass 1845, seseecesscteeeeeeseerseeteeseeceseseetseesstereeees gf = 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 4 ¢), we find 7 = 1:98 se. div. The adopted value of the temperature coefficient of the bifilar magnet, g = 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 gq = 0000266. * See foot-note, p. 395 of the volume for 1844. TEMPERATURE COEFFICIENT OF THE BALANCE MAGNET. xlvii 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 suffi- cient number of observations is included, the method of comparison previously de- seribed 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., xliii., and xliv., Introduction, 1841-2, for the details. The mean of the whole observations, properly weighted, gave q = 0000073. 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 g 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 q’, the temperature correction for 1° Fahr. in mi- crometer divisions, is the same for high and low temperatures, thus— Mic. Diy. From 7 series of comparisons in 1844 and 1845, about the mean temperature 40°, 7 =8:33 Eon: 8 2, See Ce ote ake eae seiciade Xeatiauis Seeds delchesadegs cast aie ddyecuvasebeae 60°, 7 =8:30 As the first result is the mean of 7 values of g’, 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 qg’, 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 k& 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. InrropuctTion 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., xlviii., and xlix., Introduction, 1843. It was found from these comparisons, Ist, That the value of g’, 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 adjistments 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 xlvii. and xlviii., gave g = 7:90 micrometer divisions ; and adopting the value of k, obtained from deflections, No. 59, q = 0000079. Which result is only is 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 k ; 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 yu * See foot-note, p. 895 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 Value of , Period. q- q- 1843. Mic. Div. 1844, Mie. Div. Jan. 16—Jan. 21 8-21 Noy. 4—Nov. 3 6-92 Jan, 23—Jan. 28 : 6-99 Dec. 2—Dec. 7-20 Jan. 30—Feb. 4 . 7-21 1845. Feb. 6—Feb. 11 . 6-69 | Jan. 6—Feb. 7-57 June 1—June 30 7-82 Feb. 26—Mar. 8-00 Sept. 6—Sept. 16 Apr. 10—May 10 9-08 1844. June 2—June 30 . 8-47 Jan. 1—Jan. 26 July 7—Aug. 6 10-01 Feb. 5—Mar. 6 Sept. 9—Oct. 13 7-81 May 9—May 24 Dec. 11—Jan. 10 10-17 May 29—June 29 : 1846. July 4Aug. 3 : Nov. 30—Dee. 26 7-72 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 ¢ = 823 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 ‘ = 7-99 mice. div. If the whole series were properly weighted, it is believed that the resulting value of g’ would be less than 8-00 mic. div. The excellent series, November 30—De- cember 26, 1846 (after an adjustment July 1846) gives ¢ = 7°72 mice. 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 l INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 anp 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 93 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 cirele, 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, } 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 1’ of needle No. 2, observed in two planes at right angles to each other, by the formula INCLINOMETER. hi Cot 276 = cot 2 + cot 27 Azimuth, 0° 7 = 71° 26°75 Azimuth, 90° o = 89° 5725 6 = 71° 26°75 seseeeeee 80° 9 = 73° 25°50 eee eee 120° of = 80° 27°56 = 6 = 71° (7-78 Sain 60° 7 = 80° 22':25 veseeeees 150° of = 73° 30°62 386 = 71° 9°65 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 decosccesssccescuansssennencisercessesiccs 30° seueteenaeencencscscecceccncccserssesesconsceassecnscoecasses 6-282 cee eee eneceeesensesenceseseeensores senses 850° tence ceeanecencancestssccnaseceeceuenerssovesscosscsecceses 6:275 wt ae ee eceecepecaeesensnsnesseesesscsssates 320° ven teeeeeeeeeeetee cen seusesaeessncsnsaseuscescsutasacsersses 6-278 SOHC BORER EESERAE Cc) 00 2090 SoS SqeeBE sec ge 290° SIC CU Stn CERO Ho etig ones Sone so SBepnacos gos eenee ears 6:278 Bee lcinsis o0\s «> a(e ree eee onsale we 260° aaleicis-sohions(ahaen|ssslanicleslslicicasleeceesneeeusisseness=sceesve 6 1° 4.8 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 deflected 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 obtamed 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 ann 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 NEWMAN for the Douxe 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 Duke 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, = + 0:003 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 TroucHTON, marked B, belonging to Sir Tuomas 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 TRoucuton “ B” with the Flint-Glass Standard Barometer of the Royal Society of London, July 2, 1847. Royal Society’s ene Flint-Glass Standard. pleong Beo aa Royal Society Standard — ‘ Tempera- Tempera- Temp. of Troughton “B.” Height. tie. Herghy. ae Royal Society Standard. in. a in. cl 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 +251 041 268 64-5 +232 Corrected to +229 minus BAROMETER. hii TABLE 10.—Comparisons of the Makerstoun Standard Barometer with the Barometer TROUGHTON “ B,” July 84—10*, 1847. Makerstoun Standard. Troughton “ B.” Troughton “B” minus Corrected to Makerstoun . Tempera- Tempera- Temp. of B Height. ture. Height. ture. Makerstoun Sine wis Standard. in. : in. = 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 TroventoN B minus Royal Society’s flint-glass, . . . . =— 00417 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 a a 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 anv 1846. moveable front d of the wooden case, 4 feet above the soil; the bulbs project below the wooden slab ¢, 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 diference 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 coyer 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. lvii. 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. NEWwMAN’Ss standard, 32°00. Dry bulb, 32°7. Wet bulb, 32°6 102) jug fe) ol {3/25 oe ee ee Oo Oere eceeseaee Sigel a Maan hae 32°65 Heb VMSHUGEG IT oo... tv esc te teen cteanee Seal 7280 Ae O27 Oa ee ece as 32°°7 Dec aiSates sem pried lovl ubtoigew DA crowns. O298) Did, es. 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 TasLE 11.—Corrections of the Dry and Wet Bulb Thermometers to the Temperature by NEwMan’s Standard, in 1845 and 1846. Corrections. Corrections. 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 AND 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 Aprz 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. Apre, 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. lvii 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 actinometer 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 1) 27 “e gogtbsetsnan oon sen snab0Gsce ORES cfrepartoehcilee sislerelanieks =12:04 I) Sit” seonkgeenen Dacre nda caeaes DE Gn isarec AA sap Ren SDD aC = 9-70 Mean effect of sun in 60°, glass plate A on = 9:58 Proportion of whole heat stopped by the glass plate A, =0°204. Sc. Div. 1846. June 34 9°51™ a.m. Meantime. Glass plate Aon; mean effect of sun in 60°= 9:29 WU, occ oO ONO SB ODO ADO OSU CE ms Oorne Olt de dtc Subbaoots np oot =12'83 10) 33) CSA ASA an aS ore eats ODM. fre svc olateterareteietarete ates = Sey ON aaa yar to 2 ctals yatoyare tare ara abla tahatan lee Oe Re Ran Sc Eo abr ob =12:88 IN UO) Coe eeor Saseptece ne ern tone ve Ol ee aaanedeeseccmagl coat = 10°33 Mean effect of sun in 605, glass plate A off =12°85 IWIGET \Coosec MERC RE Ieee ee eea one dee on = 981 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 level of the sea. 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 6} 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 Maccatt, 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 froma 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. Antz, 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 : @ is a cistern containing water to the level 6, ¢ 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 7, whose axle rests on friction- rollers at g and Ah; 7 isa 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 | index m, which the latter carries forward by } means of a projecting pin near the extre- mity; 0 a 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 vessel ¢; the other end of the tube o is six feet above the outer wall of the Observatory, where it is capped by a vane p; at the top of the tube o three brass rods are joined, which carry a small tube in which a pin within the top piece q rests or turns ; the tube 0 is 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 1b. on this surface is equivalent to 144 Tb. on a square foot. Different weights are suspended on the wheel f, acting oppositely to the vessel ¢, 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 = = 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 m 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 Forsss. 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 ¢ diminishing its weight, 8 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 k, and o the specific gravity of the material (zinc) of which e is formed, then W ™ a a constant ratio, Cock, &c. ]xi 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. Crock, &c. 105. The mean time clock is by DENT of London; it is 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 Wetsu. 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~drons 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, No. 17. 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. 7] Ixii. InTRODUCTION TO THE MAKERSTOUN OpsERVATIONS, 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, &, 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. Letra 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. Lxiii 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 13™ 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. Curves 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. (lave) 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, Unijilar 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. ™ Pairs of Distances. Log. xX 0-454094 0-456497 0:455291 0-455826 0-455640 0-455766 0-456009 0:455309 0-454785 0.454664 0.455078 0-455281 0-453826 0-453431 0.454274 Log. m X. 1-515975 1-513839 1.516163 1.514334 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 bifilar reading: for sl 8450052... See f oy ck .s ccesnedsareesserevssesusosmat chests o- = 3'38355 The mean value of X from the observations for 1844, reduced to the mean bifilar resdinpstor gl S44 an cca one ote \ecectuces tose thes wo-becee ae eee dso = 3:38005 Whence the secular change from 1844 to 1845 in parts of X, ........ ...... = 0:00104 From the readings of the bifilar magnetometer the secular change 1844 to 1845, ..... SE tere osu den inc dnace daca sable anti talacisialc guanidino eset = 0:00142 MAG. AND MET, OBS. 1845 anpD 1846. r Ixvi 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. XXVil. 119. In addition to these observations, others were made in 1846 and 1847, according to Dr Lamonv’s modification, with small magnets and instruments con- structed by Mr Jones 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 Tuomas 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 :— TasLE 13.—Fifth series of Observations for the Induction Coefficient at Makerstoun, of the Makerstoun Collimator Deflection Magnet, September 15, 1847. +e Interpolated 4 Position A De Difference of Bifilar Reading, DEhection® Sum of of Value of dm manectors Reading. Deflector Deflections. Deflections. m Away. So. Diy. So. Div. Se. Diy. Se. Div. Se. Div. Away. 188-35 N. Pole N. 10-67 188-11 177-44 : N. Pole S. | 363-65 | 187-87 | 175-78 | 393-22 LEG. q ip Qian Away. 187-62 N. Pole N. 10-32 187-43 177-11 N. Poles. | 362-90 | 187-24 | 17566 | 2277 came sr = Away. 187-05 N. Pole N. 9-80 187-02 177-22 N.PoleS. | 36257 | 186.99 L7ESB Ol Re 1:64 000 ee Away. 186-95 N. Pole N. 9.65 186-80 177-15 N.PoleS. | 36242 | 18665 | 175-77 | 35292 oe O-mnsae Away. 186-50 N. Pole N. 9-25 186-43 177-18 , N. Pole S. | 361-90 | 186.36 | 175-54 | 392-72 1S | eo Away. 186-30 N. Pole N. 9-25 186-33 177-08 | N.PoleS. | 362-00 186-36 175-64. |) oe? Te | oe Away. 186-40 The angle of torsion of the bifilar was, » = 53° 45’. The arc value of one scale division, = 1/025. ADDENDUM. lxvii 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 3 gece eG SO eee de aes liom ey Givceth ae PO weries, 4. 0:00465 BePATSDS 20 1, Nee, oe 2 Cn See PAs eget es .ood. Series: 4 0:00403 Meats aa ois «SSR eral a Seca heen tbosasmimetesines qcnateMeasie es LUN SErIeS. 4 0:00397 5th series, 6 0:00435 Bence eee OREEEREPETE ee since se ncdeaes SOELOR OM Lou ae AL Mean of all determinations, 0:00417 Prof. BACHE’S 3°65-inch collimator; named B, marked 4, series of 4 determinations, 0:00627 Prof. FoRBgES’s 3°65-inch solid bar, named F, unmarked, ................. Neate see se 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 :— TasLe 14.—Observations for the Temperature Coefficients of different Magnets, September 8, 1847. THERMOMETERS. | Unifilar [Declination Bifilar Unifilar Temperature a Re oe Scale | Corrected, | Circle Reading | (oeticient, Reading. | Reading. an Reduced, BPS Se. Div. Sc. Div. 5 a ¢ Y 182-42 6-30 236 54-79 200-20 1-95 : 192 54-47 193-65 1:55 : 48-03 185-52 2-22 . 39-25 192-47 2-55 ‘ 46-15 204-85 2-60 . 58-80 198-20 2-67 . 51-93 190-10 3-02 : 43-40 196-95 3-00 b 50:43 207-05 3-25 , 60-63 227-87 9-52 . 17-75 221-00 9-77 : 10-53 214-05 | 10-02 57 3-25 220-25 9:97 . 9-63 229-30 | 10-05 . 18-86 222-97 | 10-22 “ 12.25 215-00 | 10-45 : 3-93 296-00 | 10-77 26-73 304-15 | 11-22 34.79 | Onnoue8 311-55. | 11-12 8. 49-45-61 Sitoree 304-00 | 11-20 SS6GIBIE Racane 297-50 | 11-67 27-67 171-47 | 12-17 : 18-15 195-75 | 12-25 : 42-99 220-40 | 12-20 . 68-29 336-00 | 11-87 : 66-99 320-05 | 11-67 : 50-78 nantes 303-90 | 11-62 . 34.26 0-000088 -000088 -000089 -000098 -000090 -000087 -000098 0.000094 -000080 -000083 -000100 -000095 -000088 0:000295 -000316 h. 0 1 1 1 1 2 2 2 2 2 5 5 5 5 5 5 b) 6 6 6 6 6 6 6 6 7 7 7 * Each determination, it will be seen from Table 13, 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- lxviili INTRODUCTION TO THE MAKERSTOUN OBSERVATIONS, 1845 anp 1846. 124. From these we find for Professor BACHn’s bar, named | 63°-9 to 90°3 g=0:000095 { ae 8 ny B, marked 4, -+++.+-+e-+-+ } SB*1 to 63°9 ¢==0-000089 aman OF @ for 28, Babe 4 Professor BACHE’S bar, named ) 657-4 to 89°°8 ¢g=0-000096 { =x jad unmarked, dete eds * 39°38 to 65°-4 q=0:000084 welecee occ e ates eeccetecesssscece 8 Sir THOMAS BRISBANE’S ul 64°-7 to 89°°6 g=0:000106 { Seren _@ named M, unmarked, ------ 39°8 to 64°°7 g=0-000096 10 Professor FoRBES’s bar, named | 64°:8 to 88°:2 g=0:000295 { ag F, unmarked, ..:..........-- 39°:5:/10164-Sig = O.000816 snares ait fa 14 Sir THoMAS BRISBANE’S bar, | 67°:8 to 94°1 g =0-:000200 { sing marked I. 23, ......... onze (PGOro tolGde- Sg OOU0 Meta) po "ecco sae ae 13 125. For these magnets, therefore, the temperature coefficient varies from + io J, of its mean value from the mean temperature of 50° to that of 75°, the co- efficient being greater at high temperatures than at low temperatures. A similar result was obtained by Mr CurisTI£ long ago,* and lately by Mr Arry and Colonel SasinE. 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 ° P Difference Description of Magnet. UAE oes Bisg minus q: q Falling. Noy. 9, 1843} Bifilar Magnet (15-inch) ------++.+--+++ Beds ceies 0-000290 | 0-000298 | + 0.000008 Deflection Magnet (15-inch) 0-000278 | 0-000296 |+ 0.000018 Balance Magnet (12-inch, very thin) 0-000067 | 0-000079 | + 0-000012 3-65-inch Magnet, named F. 3-65-inch Magnet, unmarked 0-000280 | 0-000289 | + 0.000009 0-000311 | 0-000301 | —0-000010 0:000408 | 0-000395 | — 0.000013 0-000747 | 0-000745 | — 0.000002 0-000264 | 0-000278 | +0-000014 0-000210 | 0-000212|+0-000002 0-000323 | 0-000333 |+0-000010 0-000100 | 0-000121 |+0-000021 0-000091 | 0:000091} 0-000000 0-000089 | 0.000092 | + 0-000003 0:000098 | 0-000104 | + 0-000006 3-inch Magnet, marked 8, 43. -+---.+-++- 3-inch Magnet, marked S. 29 «-+.+++.++eeeeeee+ 3-inch Magnet, hollow, marked B, 6, -+++++++- 5-inch Magnet, hollow, marked I, 23, ---+-++- st 3-65-inch Magnet, named F. oo 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. WWRANAAAANSD 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.) ct sine 5 Adit where shes sin %, 1 + k (ba — by) eae 3m 1—g¢(t,—t) 1 — — sin u, m 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 THOMAS 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. 0995 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 1 Baek Lt Gah tege Qin s7sinu= =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 AnD 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+AB+ Asy Xe, a+PBt+y where 2 2 ge Sire vot 1 1 gs — 88 gs St a en ee == a ae » B= ae ’ = ae > 2b r Se ry? 63 rs A, =3 7° sin 4, A, =4 7,3 sin w, As = 373° sin ug The observations of vibration were made in the usual manner, the following 1s 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 East. North End of Magnet moving West. Time of : i i - | ime of Transit. : ransit Vibrations. hm 48. .- m™m, 2 m 5 . m . . mm. 8. m. s. 6 21 41-5 Bs 25 24-7 6 : 21-7 | 25 24-9 22 12-0 . 24-8 : 52-0 24.7 42.4 . 24-7 : 22-5 24-7 13-1 : 24-6 : 53-0 24:7 43-5 “2 24-7 * 23-3 24.5 14-0 : 24-7 : 54-0 24-7 44.5 5 D 24-6 : 24.4 24-8 15-0 D 24-6 : 55-0 24-7 45:5 : 24.6 5 0. 25-5 24-8 3 16-1 H 24.5 . 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. xxii*), having the more convenient form a Be 16 2 8 2 feat Rln.d — o bigby G2 - = ) (1 -&/G=% + ofe=4+) 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. lxxi Table 17. Results of Observations for the Absolute Horizontal Intensity made with Circle Magnetometers in 1846 and 1847. 6-in. Circle. 6-in. Circle. 9-in. Circle. 9-in. Circle. 9-in. Circle. 9-in. Circle. ome og x 1B, Q. 9-1603750 |+0-016708 | —0-003344 9-1564802 |—0-005080 | + 0-002391 9-1810278 |+0-000655 | —0-000600 9-1731457 |+0-000172 |—0-000526 9-1732756 |+40-000899 | —0-000729 9-0952645 |—0-002388 |+0-000387 Log m X. 0-2146240 0-2107538 0-2420858 0-2344397 0-2310949 0-1518040 Result. X at the Mean x Bifilar | Bifilar Fa Reading. | for 1845. 3-3661 | 568-7 | 3-3528 3-3662 | 560-9 | 3.3564 3-3926 | 574-8 | 3-3764 3-3935 | 576-7 | 3-3765 3:3799 | 545-0 | 3-3774 3-3750 | 524-9 | 3-3816 The resulting values of X, by Professor Fores’ instrument, differ considerably from those by Sir THomAs BrisBANz’s, while the latter agree much better with the results obtained with the 15-inch bars, see Table 12. Maxerstoun, March 1849. " 4 Bt, \maprhn pelos ei RL a . = Ad , - in 3 Que . t gags - — o {.s = i CARIES won ny ‘ oily lt ‘ - * HOURLY OBSERVATIONS OF MAGNETOMETERS. MAKERSTOUN OBSERVATORY, 1845. MAG. AND MET. oBs. 1845. bo Gottingen Mean ‘Time of Declina- tion Obs. =a + ecscooocoeoocoaeecoosescoocooesooc# 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 | 0 0 0 =| 0 i Hovurzty OpsERVATIONS OF MAGNETOMETERS, JANUARY #—6, 1845. DECLINA- TION, } 25 11-51 12-93 11-17 08-05 11-91 12-40 13-36 12-76 12-48 13-36 14-06 14-91 16-10 17-76 16-97 12-08 12-20 14-44 12-67 11-34 |) 12-96 || 08-19 11-61 11-39 14-41 13-59 12-92 15-07 17-33 14-30 13-74 13-14 14-26 || 12-42 13-91 15-20 16-21 16-60 15-86 14-71 13-17 10-43 13-49 13-94 13-16 06-68 | 13-05 13-09 13-27 13-43 13-19 13-49 13-16 13-10 15-76 14-58 BIFILaR. Bau ANCE. Gottingen Mean Time Cor- rected. Se. Div. 528-6 529-9 532-8 526-3 533-1 533-6 533- 533-2 535-0 533-5 531-4 529-8 526-9 528-6 526-2 528-7 537-1 533-7 531-9 536-2 536-2 537-4 532-9 531-2 529-7 531-2 530-9 533-0 532-3 535-3 539-8 537-9 532-4 537-6 536-1 533-0 531-8 532-6 539-1 532-8 531-1 535-4 540-4 538-7 535-7 529-6 536-0 535-8 534-5 534-1 534-3 536-1 536-1 537-3 537-8 536-9 meter, 37-9 37-7 37:1 36-9 36-7 36-3 36-0 35-7 35-4 35-1 34-9 34-7 34-6 34-5 34-4 34:3 34:3 34:3 34:3 34-3 34:3 34:3 } ‘Thermo- | | | | | 37-4 | | i) lic. Div. 616-3 616-9 615-3 | 603-4 610-4 613-8 | 617-0 615-9 617-5 614-0 612-7 | 611-7 612-1 621-1 633-1 643-2 640-3 633-8 631-9 626-5 | 621-2 620-7 619-1 614-6 Initial. of Declina- tion Obs. Thermo- meter. Observer’s 38:0 | 37-7 37-3 37:1 36-8 35-6 36-2 35-8 35:3 34-9 bo * mnnwnwe wnrer w = COMNTIRBNEwWNH OS ecocoeoceoceocece|cooos Hhitthessseseeserene three Hmwmmmoedehidddrddumwawy | cooocooocoocococcococeccococoecoe ei = ececooooococeocececo meeseesee S 34:5 DECLINA- TION. 25 13-05 14-23 14-80 16-73 16:86 16-12 15-31 15-05 14-13 14-03 13-59 13-76 13-72 13-25 13-17 13-12 12-82 11-69 11:37 12-02 12-69 13-12 13-03 13-74 13-27 13-02 13-64 14:37 15-11 14-57 13-72 14-35 14-06 14-06 13-99 14-20 13-47 13-23 13-97 13.66 14:17 14.03 | 14-33 14-17 13:86 13:37 13-12 13-32 13-77 14-38 15-38 15-74 15-44 13-93 13-99 14:57 BIFILAR. BALANCE. Cor- || rected. Se. Div. 539-9 538-7 538-0 534-7 535-6 638-1 536-1 536-2 Thermo- meter. 45-7 Cor- rected. Mie. Diy. 607-7 605-2 606-0 605-8 604-1 607-7 609-4 610-9 613-0 610-9 611-4 611-2 612-2 611-9 611-7 609-2 607-7 605-8 593-5 598-8 598-5 599-1 600-0 600-4 598-1 596-4 594-0 594-2 592-5 599-0 600-2 606-3 604-7 605-4 605-1 605-5 605-8 606-1 607-5 609-0 609-2 604-4 601-7 598-7 596-7 594-9 594-4 595-3 595-4 590-7 590-7 592-5 595-7 599-3 600-4 600-7 Thermo- meter. 34:5 34-5 34-4 46-0 46-2 46:3 46-3 46:3 46-3 | 46:3 46-2 46-2 46-1 Observer’s Initial. — Hotes eee Seer eer wodedadeiimmnmntie | BIPILAR. Observed 2 after the Declination, s—0-000140. DECLINATION. Magnet untouched, Dec. 30¢ 1844—Feb. 54 1845. Observed 3™ after the Declination, =0:000010. BALANCE. t Extra Observations made. Gottingen Mean Time of Declina- tion Obs. a. 6 + ‘ : 7 ‘ ecscoocooco$cs HourLy OBSERVATIONS OF MAGNETOMETERS, JANUARY 6—10, 1845. cococoecoocoococoeoceoceococece ecooocoeooceceocsececocoococeco ee Nr OCOOONOURWNWK OS BIFILAR. BALANCE. DECLINA- TION. Cor- |Thermo-|| Cor- /Thermo- rected. | meter. || rected. | meter. al une Se. Div. Mie. Div. oft 25 14-73 || 539-4) 45-6 |) 599-1| 46-0 14-46 || 540-7] 45-5 || 597-2| 45-7 14.46 || 541-2} 45-3 || 595-1] 45-4 14-55 || 538-4] 45-0 || 598-0} 45-0 14-53 || 536:9| 44-8 || 602-2| 44-6 13-84] 538-3] 44-4 || 602-0 44-0 13-93 || 538-2} 44-0 || 602-3] 43-5 14-30 | 538-6] 43-6 || 602-7| 43-0 25 13-34) 537-9| 43-2 || 603-1] 42-5 13:88 | 537-0| 42-7 || 598-1] 42-0 13-43 | 536-9] 42-3 || 595-3] 41-5 12-16 || 540-2) 41-9 || 589-1} 41-1 11-66|| 539-6] 41-5 || 590-0} 40-7 12-78|| 539-7| 41-0 || 589-1| 40-4 13-14|| 540-3] 40-7 || 589-4} 40-0 13-46 || 539-8] 40-5 || 590-9| 39.8 13-83 || 539-7| 40-2 || 588-7| 39-5 14.92]| 542-3] 39-9 || 586.7 39«2 15-79 || 544-9] 39-7 || 592.3} 39-1 16-15 || 546-2| 39-4 |) 595-7| 39-1 15-51 || 547-6| 39-3 || 595-0| 39-0 14-33] 546-1] 39-2 || 597-7] 39-0 14-87 || 546-1] 39-2 || 598-9| 39-1 15-41 |} 543-9| 39-1 || 599-8} 39-2 16-65 || 544-1] 39-2 || 600-7) 39-4 16-10 |} 541-0} 39-3 || 599-1} 39-4 14-44 || 537-3] 39-3 |) 602-6| 39-2 13-19) 532:0| 39-2 |) 608-8} 39-0 14-15) 531-6| 39-0 || 614-6] 38-8 13-96 | 531-5| 38-9 || 615-7] 38.7 08-92 | 541-2] 38-7 || 607-5| 38-5 13-96 | 540-9] 38-5 || 596-9] 38-4 25 14-50]| 538-9] 38-4 || 599-7] 38-3 14-62 || 538-5] 38-2 || 604-4) 38-2 14-77 || 539-8] 38-0 || 602-4] 38-1 14-85 | 541-0} 38-0 || 600-5] 38-0 14-48 || 542-4] 37-9 || 598-1] 38.0 14-17 || 542-1] 37-9 || 597-4] 37-9 13-66 || 543-3) 37-8 || 596-6} 37-9 14-33 || 542-4) 37-8 || 596-5] 37-9 17-60 || 540-0) 37-8 || 597-2} 37-9 17-54 || 541-8| 37-7 || 593-1] 37-8 17-61 || 540-6) 37-7 || 598-6} 38-0 15-12) 539-2] 37-9 || 604-2} 38-3 14-71 || 541-1} 38-1 || 603-2| 38-7 14-68 || 543-2] 38-5 || 605-9] 39-2 13-66 || 540-3] 38-9 || 607-8| 39-6 14-50 || 540-4] 39-2 || 607-2} 40-0 15-09 |) 539-6] 39-5 || 605-5| 40-2 14-46 || 541-2} 39-7 || 603-1] 40-3 14-40 || 539-3} 39-7 || 601-1] 40-3 14-44 || 539-6] 39-7 || 599-0} 40-2 13-86 || 540-8] 39-6 |} 596-2] 40-0 13-79 || 540-3] 39-4 || 593-7| 39-7 14-06 || 539-0] 39-0 || 593-9] 39-1 12-72 || 537-01 38-8 || 596-1] 38-8 Observer’s Initial. SHH Mn tttttewssesaaes dguouwwe | = < Wann dswdssusshimoe mss Gottingen | Mean Time of Declina- tion Obs. ie} + 10 10 + coooococoecoocoococecoe cococeco | DECLINA- || TION. 25 BIFILAR. BALANCE, Cor- |Thermo-|} Cor- |Thermo- rected. | meter. || rected. | meter. Se. Div. : Mie. Div. mI 535-0} 38-6 | 600-3| 38-5 536-7 | 38-3 || 596-2] 38-1 538-7} 38-0 | 596-7| 37-8 541:5| 37-7 || 592-3] 37-5 545-7| 37-4 || 584-4) 37-2 542-3] 37-1 || 583-8} 36-8 541:7| 36-9 || 581-9| 36-6 542-0] 36-7 || 584-1] 36-5 539-5] 36-5 || 588-0| 36-3 540-3} 36-3 || 587-8} 35-9 538-7 | 36-1 || 590-3) 35-8 538-1} 35-9 || 599-3| 35-7 546-9| 35-9 || 598-8} 36-0 533-0] 36-1 || 607-0| 36-5 532-7} 36-5 || 614-6| 37-2 534-5] 37-2 || 626-0| 37-8 536-9| 37-7 || 647-9| 38-3 537-6} 38-0 || 653-4] 38-8 535-4| 38-3 || 663-0] 39-6 525-0} 38-3 || 688-4| 39-2 558-8} 38-3 || 766-6| 38-9 499-7| 38-1 || 682-3] 38-7 | 443-0 38-0 || 375-6) 38-5 | 438-3| 37-8 || 335-3| 38-4 543-6| 37-7 || 594-3] 38-3 479-2} 37-5 || 570-4} 38-0 445-4| 37-3 || 603-5| 37-8 500-3} 37-2 || 631-1] 37-7 524-1] 37-0 || 647-1| 37-6 522-9} 37-0 || 629-4| 37-5 531-5| 36-9 || 614-0} 37-5 529-7! 36-9 || 611-3| 37-5 532-7| 36-8 || 604-5| 37-4 535-1] 36-8 || 595-0| 37-3 534-5| 36-8 || 592-9) 37.4 534-1] 37-0 || 595-4| 37-6 538-5] 37-3 || 594-8| 38-0 538-8| 37-7 || 602-6] 38-4 534-8] 37-9 || 603-3| 38-6 535-8| 38-0 || 604-6] 38-8 536-2} 38-2 || 605-4) 39-2 535-7| 38-5 || 603-1} 39-4 537-2} 38-7 || 602-0] 39-6 518-7} 38-9 || 648-5] 39-9 537-3| 39-2 | 604-6] 40-2 527-6] 39-5 || 601-1| 40-6 531-4] 39-8 || 605-3} 41-0 532-8] 40-0 || 599-2] 41-3 537-9} 40-3 || 581-2| 41-6 527-6} 40-7 || 589-6} 41-9 528-3] 41-0 || 597-5| 42-2 532-7] 41-2 || 597-6| 42-5 535-7| 41-6 || 591-3} 42-7 535-8] 41-9 || 597-1} 43-1 539-0] 42-1 || 603-8} 43-3 539-71 42-3 || 598-9| 43.4 Observer's Initial. BIFIvar. DecuinaTion. Magnet untouched, Dec. 304 1844—Feb. 54 1845. Observed 2™ after the Declination, s=0'000140. BALANCE. SSO Heese eset terete sasae bb oa a a ot a a | Observed 3™ after the Declination, k—=0-000010, + Extra Observations made. Hovurty OBSERVATIONS OF MAGNETOMETERS, JANUARY 10—16, 1845. Initial. Gittingen BIFILAR. BALANCE. < _: | Gottingen BIFILAR. BALANCE. % san ie ul | | £3] Mean Time || Decrrna- z Mean Time |) DECLINA- || ] | Bes : i of Declina- || TION. Cor- |Thermo-|| Cor- /Thermo-, aa of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- Z tion Obs. | rected. | meter. || rected.} meter. |'~] tion Obs. rected. | meter, || rected. | meter. ||5 Me MBs yarns || dee ont Se. Div. ° Mic. Div.) ° | dik Beeman l(a. Se. Div. Z Mie. Div. ® 10 21 0 | 25 15-14|| 538-2] 42-6 || 599-8] 43-5 |] B | 14 5 0 || 25 15.49] 534-4] 38-8 || 601-8] 39.5 22 0 |} 16-62] 536-6| 42-7 || 599.2} 43-5 | W 6 0 14.84 || 534-1| 38-9 || 607-3] 39-7 23 0 17-10 || 536-7| 42-7 || 599-0] 43-5 | W (i ft) 14-75 | 539-3} 39-0 || 605-7} 39-9 11 0 OO] 16-66| 534-9] 42-7 || 601-3] 43.5 | W SiG, 14-38 | 539-7| 39-1 || 602-5] 40-0 1 0} 16-60} 534-1] 42-8 || 601-2) 43.7 | W 9 0 12-72 || 540-3) 39-2 || 601-8) 40-1 2 0} 16-13 | 538-2) 43-0 || 605-9| 44.0 | W LO) s0 12-75 || 540-6) 39-2 || 598-1} 40-1 a 0 | 14-78 || 535-3| 43-4 || 614-8) 44.5 | W 11 OF 11-17 | 544-9} 39-3 || 576-4] 40-1 4 0] 14-73 | 536-5] 43-7 || 617-0| 44-7 || W 12 Ot 09-76 || 534-5} 39-3 || 572-1] 40-1 5 0] 13-86 || 534-6] 43-8 || 621-9] 44-7 || W : 6 0 14-78 || 535-2) 43-8 || 620-2| 44.7 | H 13 0 | 25 16-48} 537-2| 39-3 || 570-3} 40-1 7 Of| 07-24] 538-4] 43-7 || 619-3) 44-4 | H 14 0 12-98 | 533-5| 39-4 || 577-7] 40-1 8 0 14-53 || 531-7| 43-6 || 613-2} 44.2 || H 15 O 12-18 |) 534-5| 39-4 || 582-2] 40-0 9 0] 14-17 || 538-0} 43-3 || 603-0] 43-8 | H 16 0 11-72|| 536-0| 39-4 |) 586-9] 40-0 10 0 | 14-35 | 536-7} 43-1 || 600-3} 43-4 || H 17 0 12-65 || 542-5) 39-3 || 583-9] 39-9 11 Of} 14-11 | 535-9] 42-8 || 601-2} 43-0 || B 18 0 13-07 || 541-3| 39-3 || 583-1] 39-8 12 0 13-56 || 534-4] 42-6 || 603-3} 42.5 || B (9) 14-24 || 539-9| 39-2 || 587-0] 39-7 | 20 0 14-64 || 542-4) 39-1 || 585-3] 39-7 12 13 0 || 25 17-20]) 535-4] 37-9 || 577-5| 37-5 | W 21 0 14-80 || 539-5! 39-0 || 588.2] 39-5 14 0 |} 14-80 || 531-3} 37-7 || 591-5] 37-2 || W 22.0 14-57 || 534-2! 39-0 || 590-8} 39.4 15 0|| 13-05] 530-8| 37-3 || 595-9] 36-8 | W 23 0 14.94|| 527-9| 39-0 ] 595.1| 39-3 16 0 | 15-61 || 528-8) 36-9 || 600-2| 36-4 | W]15 O O 16-39 || 534-1] 38-9 || 593-0] 39-4 17 07; 21-91 || 522-3) 36-6 || 595-8| 36-1 || W ty) 17-42 || 534-6] 39-0 || 588.4] 39.5 18 0 | 17-26 || 533-9| 36-3 || 580-4) 35-9 || W 2 0 17-19 | 536-7| 39-2 || 588-8} 39-9 19 0} 14-71 | 536-3] 36-1 || 595-1) 35-7 | B 3 0 16-06 || 539-2| 39-5 || 589-1] 40-2 20 0O| 15-61 || 538-0} 35-9 || 598-5| 35-4 || B 4 0 14.57 || 539-4] 39-9 || 591-4] 40.7 21 0} 16-05 || 536-6) 35-7 || 601-6| 35.2 || H 5 0 14.64 || 540-4] 40-1 |) 589-7} 40.9 22 0] 16-92 || 534-3] 35-4 || 603-0} 34-8 || H 6 0 13-90 || 540-3] 40-2 || 593-0] 41-0 23 =O || 16-68 || 528-5| 35-2 || 608-0} 34.8 | H ¢ 14-17 || 540-1] 40-3 || 593-1] 41-1 13 0 O| 17-53 || 530-1} 35-1 || 606-0| 34-8 || H S40 12-09 || 540-8} 40-2 || 592-0} 40-9 1 0} 18-13 | 532-0} 35-0 || 608-3} 35.0 || B 90 13-91 || 539-2| 40-2 || 593-2] 40-7 2 0] 17-15 || 535-9} 35-0 || 610-9) 35-0 || H 10 O 14-20 | 539-7} 40-0 || 591-0] 40.3 3 0] 15-24] 530-6} 35-0 || 618-2] 35.2 || B 11 Of 02-77 || 546-4] 39-8 || 582-8] 40-0 4 0] 15-61 |) 538-5] 35-1 || 611-0| 35.3 | H 12) 107 12-62 || 533-4| 39-6 || 576-2) 39-6 5 0 | 14-77 || 538-7] 35-2 || 611-1} 35-7 | B 6 0} 13-83 | 538-6} 35-4 || 609-7| 35-9 || W 13 0 | 25 14-64] 535-4) 39-3 || 566-6] 39-3 7 0] 13-96 | 538-1} 35-6 || 608-9| 36-2 || W 14 0 14-60 || 534-0] 39-0 || 574.2) 38-9 3.50" 12-95 | 535-6} 35-8 || 609-2| 36-4 || W 15 0 14-55 || 535-1] 38-7 || 580-5] 38-4 9 0] 14-24} 535-7| 35-9 | 604-9| 36-5 | W 16 0 14-11 || 535-7| 38-3 || 583-1] 37-9 10 0 | 13-36 | 538-4} 36-1 || 600-7| 36-6 || W 7, 0 14-20 | 539-2! 37-9 || 583-3} 37-3 11 0} 12.53 || 537-9] 36.2 || 599.4| 36-8 | H 1s 0 14-53 |) 540-3 37-5 || 584-5} 36-8 12 0} 13-52 || 538-5] 36-3 || 596-8| 37-1 | H 19 0 14-87 || 539-0| 37-0 || 587-1) 36:5 20 0 14-10] 539-8] 36-7 || 588-4| 36-2 13 O | 25 14-15 || 538-1) 36-5 || 596-4| 37-2 || H 21 0 13-47 | 536-8| 36-3 || 592-7| 35-8 14 0 14-06 || 537-5] 36-7 || 597-1] 37-4 || H 22) 10 13-49 || 537-5| 36-2 || 596-1] 35-6 15 0 14-33 || 538-7| 36-8 || 595-5| 37-4 || H 23 0 15-01 | 535-5] 35-8 || 595-6] 35-4 16 0 || 14-24 || 539-5] 36-8 || 595-4] 37-5 || H [16 0 O 17-20 || 536-5] 35-7 || 592-6) 35-3 17 0 | 15-17 || 539-1} 36-9 || 594.4] 37-6 || H ie 16-68 || 531-3) 35-5 || 593-5] 35-3 1s 0 | 14-24 || 540-5| 37-0 || 593-9] 37-7 || H 2°20 19-17 || 535-2| 35-4 || 593-6] 35-3 19 0 | 13-79 | 541-7] 37-1 || 593-1} 37-8 || W 3 0 17-67 | 535-4| 35-4 || 598-5| 35-3 20 0 | 14-28 || 539-8| 37-2 || 593-6| 37-9 | W 4°00; 17-33 || 535-9| 35-3 || 596-8| 35-2 21 0} 14-50 | 537-8| 37-4 || 596-7} 38-1 || B a) 15-81 || 538-0] 35-2 || 597-4] 35-2 22 0 15-62 || 532-1| 37-6 || 599-2) 38-2 | W 6 0 14-60} 539-4} 35-1 | 597-5] 35-0 23 «0 || 18-43 527-1| 37-7 || 598-8] 38-3 || W 710 13-83 || 539-9) 35-0 || 597-3] 34-8 14 0 O| 18-45 | 535-0| 37-8 || 598-1} 38-5 || W 8 0 13-49 || 539-5| 34-8 || 597-6| 34-6 i 20 19-58 || 533-7| 38-0 || 597-1] 38-7 || W 9 0 13-37 || 539-8) 34-6 || 596-2) 34.3 240 18-03 || 539-9} 38-2 || 593-2] 38-9 | W 10 0 13-39 | 538-2] 34-3 | 596-1} 34-0 3 0] 15-17 || 539-4| 38-4 || 593-3] 39-0 | W TIP o 13-47 || 534-1| 34.0 | 598-8] 33-7 | 4 0 14:58! 542-4] 38-6 |! 596.3! 39.2 | W 12 Ot 13-46 || 534-2! 33-8 | 600-1! 33-7 DECLINATION. Magnet untouched, Dec. 304 1844—Feb. 54 1846. Birinar. Observed 2™ after the Declination, k=0-000140. BALANCE. Observed 3™ after the Declination, k=0'000010, + Extra Observations made. Mnsede estrone seeees Soe SS wom atm | ape i gato ~~ Rr este nc etl Gottingen Mean Time of Declina- tion Obs. d. h. 16 13 14 ooooooSoEH woscocoooosoooescosocog _ coocooocooococococoececococecoeso ee cooocoococo HovurLy OBSERVATIONS OF MAGNETOMETERS, JANUARY 16—22, 1845. DECLINA- TION. BiFiILar. BALANCE. Gottingen Cor- rected. Thermo-| Cor- rected. Mean Time of Declina- tion Obs. Thermo- meter. Observer’s Initial. 25 13-36 13-83 13-36 13-94 14-10 13-39 18-30 15:31 14-71 15-41 16-05 16-55 17-17 16:99 16-25 15-25 15-39 14-85 14-91 12-02 11-54 12-38 13-49 13-17 13-79 14-06 16:55 14.33 15-78 14-46 14-10 14-57 13-67 15-11 17-06 20-35 18-50 18-88 17-34 16-15 15-11 14.33 14-11 13-64 13-63 13-43 13-70 13-69 44-83 54-79 03-50 04-31 06-88 13-72 17-22 19-59 |! Se. Div. 529-7 534-6 536-2 541-1 541-6 544-0 540-8 544-2 541-2 540-9 537-2 535-6 535-4 537-3 540-7 537-7 543-2 543-1 540-8 530-5 530-8 537-1 540-8 538-4 537-3 537-7 536-9 534-1 537-8 542-2 536-4 540-9 543-3 532-9 532°3 532-3 533-5 527-7 537-1 536-5 538-1 539-5 540-2 541-0 540-4 539-3 539-4 539-9 493-5 512-4 423.4 537-8 539-8 543°6 545-9 535-7 35-8 35-7 35-3 35-0 603-5 589-1 594-7 593-6 594-2 593-6 596-5 583-1 592-5 593-2 596-1 596-3 599-3 599-3 598-8 597-9 592-1 590-6 592-0 605-1 608-2 601-1 593-4 588-3 587-4 585-1 584-8 580-4 578-1 578-2 583-0 582-0 582-1 583-3 588-3 584-8 584-4 585-3 589-6 591-6 592-6 591-9 590-7 588-4 585-5 586-7 586-1 584.4 399-8 363-2 198-8 305-3 330-0 385-3 436-4 476-1 Mie. Div. | DECLINA- TION. BIFILaR. BALANCE. Cor- rected. | Thermo- Cor- rected. Thermo- meter, Observer’s Tnitial. 33-7 33-7 ocoocoocooocoocooeoocoocoocooococoececooce ececoococoooocosoooooscoows Asn dade SS Woe oes se ocoooooooocococcocococo 34°6 25 15-83 17-49 20-00 22-25 22-25 24.99 23-65 18-52 16-68 17-70 16-01 11-19 13.12 09-12 12-06 13-83 15:44 15-01 14-13 14-78 14-53 19-69 13-67 14-53 15-52 16-65 16-38 16-10 18-20 18-52 15-15 15-78 15-20 13-96 14-26 03-34 13-67 14-11 09-39 11-93 12-70 14-78 10-87 13-83 11.24 13-90 14-50 14-43 14-13 16-30 16-95 16-86 16-63 17-07 16-01 15-85 Se. Div. 531-5 530-2 522-7 529-1 530-0 535-4 531-4 530-8 531-6 530-8 535-6 522.5 521-7 532-4 531-9 537-8 536-7 535-9 536-3 537-4 539-0 539-3 538-6 538-8 537-1 541-3 539-2 536-1 540-7 535-4 535-1 535-4 536-9 538-9 535-4 533-7 534-8 534-1 537-2 537-9 531-4 535-1 534-2 535-7 538-1 539-2 539-6 543-0 522-4 523-0 522-9 538-3 542-3 544-5 535-1 537-8 40-5 504-1 522-4 542-0 555-2 564-6 585-9 621-3 675°7 642-7 624-2 606-1 621-1 607-0 586-6 584-8 575°8 574-6 579-6 581-3 580-0 576-6 569-3 550-1 567-7 571-4 572-8 579-3 587-9 588-0 588-1 596'3 591-6 590-6 602-2 589-6 588-4 580-4 563-3 572-9 574-5 572-9 571-7 572-1 571-3 574-0 573-7 571-5 574-5 579°7 585-4 583-7 580-7 592-9 596-1 593-0 590-0 Mic. Div. % 34:3 34-0 33:8 bo Hd ed wd HS aS Hs ost SS SSS SS te et tb bt Wniittinds se esessw BIFILAR. Observed 2™ after the Declination, k=0-000140. DECLINATION. Magnet untouched, Dec. 304 1844—Feb. 54 1845. Observed 3™ after the Declination, s—0-000010. MAG. AND MET. oss. 1845. BaLaNceE. + Extra Observations made. Hovurty OBSERVATIONS OF MAGNETOMETERS, JANUARY 22—27, 1845. Gottingen BIFILAR. | BALANCE. % _ | Gottingen BIFILAR. BALANCE. £ = Mean Time || Decurna- |__| 2:8 | Mean Time || Decrina- es] of Declina- | TION. Cor- Thermo-| Cor- Thermo-| 2 3 of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- 2 5 tion Obs. || | rected. | meter. rected. | meter. || 5 tion Obs. | rected. | meter. || rected. | meter. |S | | Bate pe ed a Gas Te If Se. Div. Mic. Div. My ad. oh. om. e 2 Se. Div. x Mic Diy. i 22 5 0 || 25 16-72]| 540-3] 41-1 || 590-6] 42-2 H | 24 13 Ot 25 07-49 || 519-9} 43-0 || 600-7| 42-8 || W 6 0 16-16 | 541-2) 41-3 || 591-1] 42-4 | W 14 OF, 15-34 || 529-1] 42-7 || 572-5) 42-5 | W tel 16-86 || 539-4| 41-6 || 592-4] 42-5 | W 15 Of 04-29 || 530-4] 42-5 || 549-6] 42.2 | W 8 0 15-67 || 541-4] 41-7 || 594-4] 42-4 ||) W 16 0 13-59 || 531-9] 42-1 |) 583-6} 41-9 | W 9 0 11-44 |} 540-8] 41-7 || 604-8} 42-4 || W 1 fia O 12-36 || 532-3] 41-8 || 593-6] 41-5 || W 10 0 || 14-77 || 536-0| 41-7 || 604-9] 42-5 || B 18 0 13-02 || 536-7| 41-6 || 591-9} 41-0 | W 116 13-84 |] 539-3] 41-8 || 602-9] 42-8 || B 19 0 | 12-89 || 538-8} 41-2 | 587-6) 40-8 | B 12,60 14-18 || 558-4) 41-9 || 573-8) 43-0 || B 20 0 18-03 || 538-5| 40-9 || 584-7| 40-7 || B 21 0 17-09 || 538-4} 40-8 || 581-1} 40-6 | H 13. 0 || 25 12-29] 532-6] 42-0 |) 579-9] 43.2 || D 22 0 18-90 || 542-7] 40-6 || 578-0} 40-5 || H 14 0 12-90 || 535-6} 42-2 || 580-3] 43-3 || D 23 0 17-09 || 532-5} 40-6 || 590-6] 40-5 | H 15 0 11-03 | 532-8] 42-3 || 583-3] 43-5 || D | 25 0 O 18-27 || 540-8} 40-7 || 597-4] 41-0 || B 16 0 11-69 || 533-6] 42-5 || 586-0] 43-6 || D 1 ot 20-27 || 521-7} 40-8 | 609-3] 41-4 || H 17 0} 11-37 || 537-5) 42-6 || 583-3] 43-8 D 2 ot 19-29 || 542-4] 41-3 || 628-4] 42.0 || B 18 0 12-72 || 539-7| 42-8 || 578.2] 44-2 || H 3.0 22.13 || 537-9) 41-8 | 626-2) 42-5 | H 19 0 15-04] 540-5] 43-0 || 575-8) 44-5 || H 4 0 13-86 || 536-4] 42.2 | 648-8] 42-9 | H 20 0 13-32 || 543-9] 43-2 || 571-1] 44-9 || H 5 ot 21-06 || 533-4] 42-6 | 646-7] 43-5 | H 21..0 14-68 || 546-4) 43-7 || 569-0| 45-4 | H 6 Ot} 13-16 || 542-5| 43-0 | 641-7| 44-0 || W 22 0 16-68 | 542-7| 44-0 || 570-3] 45-6 || W 7 oT 12.16 || 534.2) 43-5 | 642-4] 44.6 | W 23 0 19-37 || 536-0) 44-3 || 579-1} 45-7 || W 8 0 14-03 || 536-2} 43-9 || 620-9} 45-1 || W 23 0 O 21-81 || 541-8] 44-7 || 582-6] 45-8 || W 9 Of 09:05 || 529-1| 44.4 | 610-7] 45-6 || W 1 0 16-60 || 540-6] 44-9 || 579-5} 46-0 || W 10 ot 10-16 || 530-0} 44-9 | 589-3} 46-0 || W 2 0 19-75 || 538-4| 45-1 || 591-9] 46-2 B 11 ot 11-37 || 534-7} 45.3 | 586-2| 46-6 || H 3 0 17-12|| 525-2| 45-4 || 616-6} 46-4 || B 12 Of 10-20 || 546-9} 45-8 || 577-2] 47-0 || H 4.40 18-68 || 538-2| 45-6 || 611-1} 46-6 || W 5 0 17-20 || 531-0} 45-8 || 620-4] 46-8 || W | 26 13 ot 25 14-18 || 530-0} 39-5 || 524-7} 38-4 || B 6 0 16-18 || 539-3| 45-9 | 605-4} 47-0 D 14 OF 12-49 || 537-3} 39-0 || 558-2] 38-2 | B 20 14-50 || 540-4] 46-2 || 594-1] 47.3 D 15) X07; 07-11 || 520-8] 38-6 || 558-4] 37-9 | B 8 0 14-77 || 535-8| 46-4 | 593-9) 47-7 || D 16 ot 05-00 || 526-8| 38-2 || 569-0) 37-5 || B 9 O 10-74 || 522-5] 46-6 || 619-2| 48-2 || H 17 0 08-48 || 529-7| 37-8 || 583-8] 37-2 | B 10 Ot 11-99 || 527-2) 46-8 || 594.2] 48.3 || H 18 ot 07-62 || 533-1| 37-5 || 580-0| 36-8 | B ll O 12-92 | 529-0) 46-9 || 588-9| 48.2 || B 19 Of 12-85 || 536-2] 37-2 || 579-9] 36-7 | H 12 H| 01-83 | 529-6) 46-9 | 574-4] 48-0 B 20 0 12-69 || 539-6) 36-9 || 587-5] 36-5 || H | 21 0 15-94 || 538°3| 36-7 || 582-4| 36-3 || W 13. 0 || 25 10-20|) 528-1) 46-9 || 589-6] 48-0 B 22. 0 16-77 | 533-6| 36:5 || 580-6) 36-0 || H 14 OF 09-89 || 529-2| 46-9 | 586-0} 47-8 | B 23 0 18-88 || 531-1] 36-3 | 583-1] 35-8 H 15 ot 12-36 || 522-1} 46-9 || 520-5) 47-7 B if 27); 0.20 15-92 || 527-0) 36-1 || 597-0] 35.7 | H 16 Of 02-86 | 536.4] 46-8 480-0] 47-7 || B ip 20 17-51 || 537-8) 36-0 || 601-4} 35.8 | H 17 ot 11-81 || 530-0; 46:8 | 506-0} 47-6 B 2 3 19-75 || 531-4) 36-1 || 605-0] 36:0 | H 18 0 11-68 || 532-2) 46-7 | 531-2) 47.4 B 3.0 15-56 || 546-2) 36-2 || 616-3) 36-2 | H 19 0 13-02 || 534-7| 46-7 | 551-7| 47-2 || H 4 0 17:96 || 534-7| 36-2 | 617-0| 36-5 | H 20 0 15-58 || 539-9| 46-5 | 555-0] 47-0 || H 5 0 14-87 || 539-6] 36-3 || 612-1] 36-6 | H 21 O 19-51 || 531-2| 46-3 || 561-2] 46.8 || W eo 0 15-27 || 537-5| 36-3 | 606-4) 36-4 | B 22 0} 14-91 | 537-4] 46-2 || 559-4] 46.5 || H “ () 14-04 || 540-4] 36-2 || 597-8) 36.4 | B 23, 0 18-34 || 536-1} 46-0 || 564-0] 46.2 || H 8 0 14-23 | 539-8] 36-1 | 595-9} 36.2 | B 24 0 0 17-22 || 526-6| 45-7 || 579-7] 45.8 || H 9 0 12:55 || 535-6| 36-0 | 600-2] 36-0 | B 1 0} 20-42) 533-7| 45-4 || 580-9] 45.5 || H 10 ot 01-41|| 555-0] 35-9 | 578-5| 35-9 | B 2 0 | 16-43 | 537-0| 45-1 || 579-8] 45.2 || H 11 Of 15-05 || 543-4| 35-8 | 567-3) 35-9 | W 3 0} 16-10 || 535-2| 45-0 585-2] 45.3 | H 127.0 10-97 || 538-8] 35-7 | 563-6) 36-0 | 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° 0 || 25 12-11 || 534-6] 35.7 | 572-0| 36-0 | W 6 Of 11-74 || 519-6| 44-8 || 644-6] 45.0 | B 14, :0 14-75 | 536-5| 35-6 | 575-5| 35-9 || W @40 16-80 || 524-6| 44-7 || 653-2} 44.9 | B 15 0 12-75 || 534-8| 35.6 | 577-3} 35-8 || W 8 OT} 15:34 || 547-3| 44-5 || 629-4] 44-6 || B 16 0 13-86] 535-0] 35-5 || 580-3) 35-7 | W 9 0 15-47 || 539-0] 44:3 | 618-9| 44.3 | B U7 (0 13-50 || 537-5| 35-4 | 580-9] 35-5 || W 10 0 14-20|| 534-8| 44-0 || 612-4] 43.8 ]| B 18 0 13-47 || 539-6} 35-3 | 580-8) 35-4 || W ll O 14-15 || 545-3} 43-7 || 571-8] 43-4 || W 19. 0 13-86] 538-7] 35-1 || 582-5) 35-3 | B 12 0 09-42 || 515-0| 43-3 || 562-6] 43-2 | W 20 0 14:06 | 540-0} 35-0 | 580-0! 35-1 B DECLINATION. Magnet untouched, Dec. 304 1844—Feb. 54 1845. BIFILAR. Observed 2™ after the Declination, k—0-000140. BALANCE. Observed 3™ after the Declination, s=0:000010. 7 Extra Observations made. Jan, 22 10>—234 10%, Term-Day Observations made. Hovurty OBSERVATIONS OF MAGNETOMETERS, JANUARY 27—F EpRuARY 1, 1845. 7 beeas BIFILAR. BALANCE, a | Gottingen BIFILAR. BALANCE. 4 EP dae gh DECLINA- oe Fs = | Mean Time DECLINA- > g of Declina- TION. Cor- |Thermo-|} Cor- |Thermo- 2 i) of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-| 2°g tion Obs. rected. | meter. || rected. | meter. || 5 tion Obs. | rected. meter. | rected. | meter. || 5~ 7 a Se. Div. ° Mic. Div.| a |e Cae, | Se. Div. ® Iiepiv.| © | 27 21 0 || 25 14-38|| 538-1 34.9 || 572-1) 34-9 || H 0 || 25 16-62 || 529-6| 28-3 | 591-6) 29-0 | H 22.0 15-47 || 537-2| 34-8 || 570-8] 34-6 || H 0 14-53 || 538-9| 28-6 || 598-9] 29-2 || B 23 0 16-23 || 535-5] 34.7 || 572-5] 34-6 || H 0 16-68 || 536-1| 28-8 || 600-9] 29.4 || B 28 0 0 16-86 || 538-6] 34-6.|| 572-9] 34-6 || H ot 02-89 || 523-7) 28-8 || 608-3) 29-1 || B 1 0 15-01 |] 532-6] 34-6 || 572-0] 34-7 || H ot 07-74 || 535-1} 28-7 || 583-1} 28-9 | B 2 0 15-71 || 546-5| 34-6 || 567-2} 34-9 || H ot 12-01 || 529-9] 28-5 || 582-2] 28.5 |] B a. 0 18-20|| 548-9] 34-8 || 578-1] 35-3 || H 0 14-03 || 535-9| 28-2 || 570-6) 27-8 | W 4 0 19-34} 540-1] 35-0 || 603-0| 35-5 || H 0 13-84 || 535-1] 27-8 |) 564-7| 27-0 || W 5 Ot 15-38] 524-9] 35-1 || 623-1] 35-6 || H | 6 OT 13-05 || 528-1] 35-1 || 638-6] 35-7 || W 0 || 25 13-32]| 534-5] 27-3 || 562-2) 26-3 || W 7 0 16-26 || 528-0| 35-1 || 633-4| 35-7 || W 0 | 12-96 || 533-4) 26-7 || 559-9] 25.4 || W 8 0 09-10) 540-4] 35-1 || 641-4] 35-7 || W 0 14-03 || 533-6] 26-2 || 560-0] 24-6 || W 9 0 12-15|| 531-0] 35-1 || 632-5] 35-7 || W 0 13-79 || 533-7] 25-6 || 559-3] 23-9 || W 10 0 13-12|| 524-3] 35-1 || 632-3] 35-7 || W 0 13-37 || 533-1] 25-0 || 557-6| 23-1 || W 11 Of|| 25 06-19 523-1| 35-1 || 600-5| 35-7 || H 0 13-56 || 533-9| 24-3 |) 556-3] 22-3 || W 12 Of|| 24 59-66 548-8] 35-0 || 542-8} 35-7 || H 0 13-59 || 534-0] 23.7 || 555-8] 21-5 || B 0 12-58 || 536-9] 23-0 | 555-8] 21-0 || B 13 0 || 25 13-25]| 528-3] 35-0 || 550-9] 35-7 H 0 13-93 || 534-4} 22-4 || 557-3] 20-3 || H 14 0 21-56|) 533-7| 35-0 || 541-0] 35-7 || H 0 15-74 || 526-6] 21-8 || 557-2} 19-5 || H 15 0 12-92]| 529-8| 34-9 || 537-7| 35-4 || H 0 16-72 || 521-3| 21-4 |) 558-3} 19-0 || B 16 0 14-15 || 533-8] 34-8 || 560-0] 35-2 || H 0 18-43 || 522-5] 21-1 || 570-3] 19-0 || B 17 0 11-44]] 534-3] 34-6 || 566-4] 34-7 | H 0 16-89 || 526-6| 20-8 || 575-6] 19-5 || B 18 0 13-16|| 536-3] 34-3 || 567-3] 34-3 || H 0 18-54 || 531-3} 20-9 || 586-6] 21-4 || B 19 0 23-45 || 534-8] 34-0 || 558-6] 34-0 || W 0 17-09 || 532-4] 21-3 || 585-4] 22.3 || B 20 of 25-11|| 539-6] 33-7 || 534-5] 33-6 || W 0 15-91 || 533-6] 22-0 | 589-2) 23.3 |) B 21 5t 24-84 || 536-5| 33-4 || 529-2] 33-3 || B 0 15-32 || 537-8| 22-9 || 598-4| 24.3 || B 22 0 21-73) 539-0] 33-1 |] 524-8] 32-8 || W 0 15-41 || 535-5] 23-6 || 587-9] 24-6 || W 23 0 16.03 || 539-6} 32-7 || 541-2] 32.4 || W 0 15-07 || 535-8] 24-0 || 583-9} 24.7 || W 29 0 0 14-75 || 541-4] 32-6 || 563-9] 32.4 || W 0 15-01 || 535-2] 24.2 || 580-6] 24-5 || W 1 0 17-09 || 539-4] 32-5 || 565-1] 32.4 | H 0 14-65 || 535-5] 24-1 |) 580-2} 24.3 || W 2 0 18-87 || 541-4] 32.4 || 567-8] 32.5 || W 0 13-43 || 532-6| 24-0 || 578-1] 24-0 || W 3 0 17-46 || 535-2) 32-5 || 572-2) 32.7 || W 0 13-25 || 533-3] 23-8 | 574-6] 24.0 || H 4 0 18-03 | 534-9| 32-6 |] 578-0] 32-8 || W 0 13-43 || 533-7| 23-7 || 575-5] 24-2 || H 5 0 || 25 17-80] 540-9] 32-7 || 581-0] 32-9 || W 6 Ot! 24 59-63) 532-5| 32-7 || 622-2) 32.7 || H 0 || 25 14-15 || 535-7| 23-7 | 570-5) 24.2 || H 7 Ot|| 25 05-29 ]) 524-7] 32-6 || 645-0] 32-7 || H 0 19-55 || 535-3} 23-7 || 567-5| 24.3 || H 8 0 16-68 || 531-2] 32.4 || 656-3) 32-6 || H 0 13-72 || 529-0} 23-9 || 564-6| 24.5 || H 9 OT 14-43 || 527-0] 32-1 || 616-8] 32-2 || H 0 14-15 || 532-5] 24-1 |) 569-1} 24.8 || H 10 OF 03-60 || 584-2] 31-8 || 544-8] 31-5 || H 0 14-77 || 535-1] 24-4 || 572-6] 25-2 || H 11 Ot 12-80 || 533-3] 31-4 || 516-0} 30-9 || B 0 13-76 || 535-4] 24-5 || 572-6) 25.3 || H 12 Ot 09-69 || 526-2| 31-0 || 529-5] 30-5 || B 0 14-62 || 533-8] 24-7 || 574-9] 25-4 | W 0 13-17 || 535-2] 24-9 || 574-0) 25-5 || W 13 OF|| 25 12-73 || 521-9] 30-6 || 547-4} 30-1 B 0 12-87 || 534-9] 25-1 || 576-8] 25-8 | B 14 0 14-87 || 528-9] 30-1 || 564-1] 29-7 || B 0 13-77 || 533-4] 25-3 || 574-2) 25.9 | W 15 0 16-26 || 528-0] 29-7 || 570-3] 29-2 || B 0 15-72 || 534-0] 25-5 || 575-0| 26-3 || W 16 0 12-01 || 532-2] 29-3 || 567-7| 28-7 || B 0 17-26 || 532-3} 25-9 || 574-3] 26.8 | W 17 0 12-29 || 530-4] 28-9 || 575-5] 28-3 || B 0 17-46 || 529-4) 26-4 || 576-9] 27-8 | W 18 0 12-01 || 533-9] 28-6 || 576-9] 28-0 || B 0 16-92 || 532-9} 27-1 | 574-4) 28-6 | W 19 0 15-91 || 533-3| 28-3 || 576-1] 27-3 || H 0 18-18 || 535-8} 27-9 || 574-6} 29-7 || W 20 0 13-83 || 522-5] 27-9 || 574.4] 26-8 || H 0 17-26 || 534-1] 28-8 || 583-2) 30-7 || W 21 0 13-96 || 533.2| 27-6 || 564-2} 26-4 || W 0 15-67 || 536-4| 29-6 || 587-7) 31.4 || W 22 0 15-81 || 534-1] 27-3 || 564-1} 26-2 || H 0 16-18 || 536-1} 30-3 || 586-9) 32-0 || H j 23 (0 16-89 || 533-0| 27-0 || 565-8| 26-0 || H 0 15-04 || 534-.9| 30-7 || 584-6| 32-1 | H 30 0 0 17-70 || 535-0} 26-8 || 570-4] 26.2 || H 0 13-81 || 538-9} 30-9 || 582-8; 32-2 || H » 10 17-89 || 533-3] 26-8 || 569-1| 26-6 || H 0 13-59 || 538-4} 31-0 |) 580-9) 32-1 || H 2 0 17-65 || 535-0} 27-0 || 578-3] 27-2 || H 0 13-72 || 535-9} 31-0 || 581-1} 32-0 | H y 63 «(CO 16-48 || 537-9] 27-3 || 582-6} 28-1 || H 0 13-46 || 535-5| 30-9 || 579-3| 31-7 || B 4 0 18-48 || 541-7! 27-8 || 591-3] 28-5 || H OF! 14-06 || 543-5] 30-8 || 565-2} 31-5 || B DECLINATION. Magnet untouched, Dec. 304 1844—Feb. 54 1845. Brrinar. Observed 2™ after the Declination, :—0°000140. Batancr. Observed 3™ after the Declination, k—0-000010. + Extra Observations made. Gottingen Mean Time of Declina- tion Obs. ad. bh. 2 13 es cooooosoooocoocoococoeocecece coooooeoo BIrivanr. Hovurty OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 2—7, 1845. DECLINA- TION. ° ’ 25 14-33 || 13-81 25 DECLINATION, 8 ? Observer Initial. | | WwW BIFILAR. BALANCE. Cor- |Thermo-|| Cor- |Thermo-| rected. | meter. |! rected. | meter. Se. Div. ° Mic. Div. 2 537-3| 31-1 || 572-3] 32-0 536-5| 31-4 || 574-1} 32-4 536-9| 31-7 || 572-9) 32-6 537-3| 31-9 || 571-6] 32-8 535-6| 32-1 || 572-0} 33-1 537-4] 32-3 || 571-3] 33-3 540-1| 32-5 || 571-4] 33-5 || 540-6| 32-7 || 573-1] 33-7 537-7| 32-8 || 577-6| 33-8 535-2} 32-9 || 576-2) 33-8 533-3] 33-2 || 580-6] 34-2 527-5! 33-6 || 585-0} 35-0 532-1] 34-2 || 585-6] 36-2 | 535-1] 35-0 || 586-0] 37-3 | 537-2} 36-0 || 582-1} 38-0 537-6| 37-2 || 579-4] 39-0 538-4| 38-2 | 580-9} 39-8 540-4| 38-8 || 580-8} 40-2 540.0} 39-0 || 578-9) 40-3 539-1} 39-2 || 578-0! 40-3 538-4] 39-2 || 576-9} 40-0 537-0} 39-0 || 576-4) 39-7 536-5| 38-8 || 577-3) 39-4 534-1| 38-6 || 577-5) 39-1 541-4] 38-3 || 565-5] 38-8 529-7| 38-0 || 570-7| 38-4 535-3| 37-7 || 558-6| 38-0 535-5| 37-4 || 562-1) 37-5 537-6| 37-1 || 562-6) 37-0 537-7| 36-8 || 567-8) 36-5 538-6| 36-4 | 569-4| 36-1 538-9| 36-0 || 567-6] 35-6 538-4| 35-6 || 564-3) 35-1 537-2) 35-2 || 557-7| 34-7 533-6| 34-9 || 561-7| 34-5 535-3| 34-7 || 561-5} 34-7 535:5| 34-8 || 574-5) 35-3 537-7| 35-3 || 580-9] 36-1 536-0} 36-1 || 584-7| 37-2 535-7| 36-9 || 585-2) 38-0 535-5| 37-7 || 581-4] 38-7 537-0} 38-2 || 575-6) 39.2 537-7| 38-5 || 572-6| 39-4 531-0} 38-7 || 575-4| 39-6 537-1| 38-8 || 580-2] 39-7 536-9| 39-0 || 577-0} 39-8 536-5| 39-1 || 577-8| 39-9 537-8| 39-2 || 574-7| 40-0 536-3) 39-3 || 572-9} 40-0 538-8) 39-3 | 571-8) 40-1 537-9 39-3 || 569-8} 40-0 539-4| 39-3 || 567-4| 39.9 539-6| 39-3 || 567-5| 39-8 | 539-8) 39-1 || 566-8| 39-6 | 539-5) 39-0 || 563-9| 39-4 | 538-5! 38-8 || 564.2! 39.2 Hit Dense eee Seer SSH Pe seSeeSsSst ene e enw Gottingen Mean Time of Declina- tion Obs. ——s egooosceegooscoocofoF + cooocooococeco*oceoocococooco oscococococecoco DECLINA- TION. 25 13-07 13-96 15-98 17-65 18-72 19-26 19-05 21-50 27-42 24-77 15-22 16-10 15-24 12-89 13-16 11-88 25 09-46 08-88 11-77 13-47 12-60 12-73 18-63 13-77 15-34 19-21 23-72 22-01 20-02 17-40 15-98 15-15 13-86 13-66 13-29 12-83 12.58 12-69 12-51 11-98 25 13-12 13-52 13-86 14-57 13-74 13-00 11-74 13-03 13-69 13-81 15-98 18-13 18-40 17-56 16-79 16-89 Cor- rected. Se. Div. 538-4 536-1 534-6 535-6 538-7 543-1 538-3 546-9 535-5 530-8 528-9 532-7 536-9 534-4 535-9 533-6 528-6 531-5 530-7- 531-0 537-3 537-3 530-0 534-7 531-1 510-9 520-2 528-3 532-3 533-3 533-6 533-3 533-1 532-4 533-7 534-5 532-5 533-7 533-5 533-8 532-6 532-9 533-1 535-0 535-1 537-8 540-2 540-1 536-9 535-6 534.4 534-2 536-7 540-2 535-7 536-4 BIFILAR. Thermo- meter. 31-5 31:7 BALANCE. Cor- rected. 565-9 566-5 568-1 573-5 579-7 578-8 582-6 597-1 640-1 746-0 717-3 645-3 630-5 626-5 612-7 609-4 599-0 585-1 592-3 590-0 587-3 584-2 583-8 570-8 566-1 579-9 583-7 585-3 583-8 587:8 586-3 589-2 587-5 583-6 580-3 573-0 573-5 574-9 575-8 573-2 574-4 574-0 574-3 571-8 569-3 564-9 561-4 559-6 562-0 561-5 563-6 561-5 564-6 568-5 575-1 583-4 Mie. Diy. Thermo- meter, 38-9 38-7 38-7 38-7 Torsion removed,—Feb. 54 3}4,—7}°.* Effect of + 10° of torsion= — 0’84. Observed 2™ after the declination, s—0:000140. BALANCE. Observed 3™ after the declination, k—0-000010. Observer’s Initial. SeeedeSeseursettetedt meses SsSetr totes eeeese Serb nenseesqrterers + Extra Observations made. * Feb. 54 345. 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. Hourty OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 7—12, 1845. Gottingen Birman. || BALance. % _: || Gattingen BIFILAR. BALANCE. *% Si. Mean Time || Drcurna- 2.2] Mean Time || DEcLINA- ae of Declina- TION. Cor- |Thermo- Cor- /Thermo-| Z's | of Declina- TION, | Cor- |Thermo-| Cor- |Thermo-|| 2° tion Obs. rected. | meter. || rected. | meter. i) tion Obs. | || rected. | meter. | rected. | meter. 5S feeb. rm. || © ¢ Se. Div. ° || Mic. Diy. || fe Ae |e || Se. Div. © || Mie. Div. cape || 7 5 0 || 25 15-89] 533-7] 31-9 | 582-3| 32.4 | W] 10 13 O | 25 12-43) 535-5| 35-3 || 562-7| 35-5 || B Go 14-70] 537-9| 32-0 | 576-3) 32-5 || H 14 0 14-11|| 535-1] 35-1 || 556-3] 35-3 || B 70 14-43 || 538-6] 32-1 | 574-1 32.6 || H 15 0 16-55 || 539-8} 34-9 | 556-2} 35-0 || B 8 0 13-46 || 537-6] 32-0 || 573-4) 32-6 H 16 0 13-69 | 531-4| 34-7 | 559-0) 34-7 || B 2.0 13-49 || 535-5] 32-0 | 576-2) 32-5 || H ia) 12-85 || 535-4) 34:5 | 560-2| 34-4 || B 10 Of 05-29 || 527-2) 32-0 || 587-8| 32-5 | H 18 0 12-92) 537-2] 34-3 | 562-2) 34.2 || B 1l 0 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 | 21.0 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 Dei O) 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 15 0 13-07 || 535-8] 31-7 | 570-5| 32-0 Bj]i11 0 0} 15-51 || 531-8| 33-2 || 564-4| 32-9 || H 16 0 14-95 || 538-0] 31-6 || 566-6) 31-7 || B LO: || 16-48 |) 532-5] 33-1 | 562-7| 32-8 | o 17 0 12:15 || 535-2] 31-4 || 568-3} 31.4 || B 2 0}; 17-61} 536-6| 33-0 || 567-2| 33-0 || H 18 0 12-11] 534-2] 31-2 | 568-4] 31-2 || B 3.2 15-71 || 535-5] 33-1 | 573-3) 33-2 || H 190 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 60 14-33 || 541-5| 33-1 | 575-8 33-4 H 21 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 () 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 |) 538-2] 33-0 | 577-5| 33-3 || B 8 0 0 17-19 || 529-2] 30-2 || 562-5) 30-2 || H 9 0 12-45 || 536-1] 33-0 | 577-7| 33-3 || B neo 17:51 || 533-3] 30-3 || 568-3] 30-3 || H 10 0 11-46 || 536-2} 33-0 | 577-6| 33-3 || B 20 17-29 || 537-5| 30-5 || 572-9] 30-5 || H 11 0 10-85 || 537-4] 33-0 | 570-7) 33-2 || W pO 15-98 || 536-4| 30-8 || 577-8| 31-3 || H 12'%.0 13:79 || 541-3] 32-9 | 563-7) 33-2 is 4 0 14-98 || 538-6| 31-3 || 582-4] 32-0 | H | 5 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 0 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 0 13-12|) 536-5] 32-7 || 577-8| 33-4 || B 15 O 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 |i 13:05 || 539-4| 32-7 | 566-0| 32-9 || W 90 12-62] 535-0] 32-8 || 573-3] 33-3 || B 17 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 1! 0 11-98 || 535-8] 32-7 | 569-8] 33-1 || W 19 0O | 13-02) 540-7) 32-5 | 563-1| 32-6 || B 12 0 12-98 || 536-7] 32-6 || 562-1} 32.9 | W 20 0 | 13-25 || 539-3) 32-4 | 563-8) 32-5 || B 21 0 | 13-59 || 540-3] 32-3 | 562.4| 324 | H 9 13 O || 25 09-42]) 539-5] 31-8 || 561-1] 32-4 || H 22 0 || 14-68 || 536-8| 32-2 | 565-8) 32-3 || H 14 OF 04-68 || 532-3] 32.0 || 556-5| 32-5 || H 23 0 || 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 1 0} 17-86 || 523-6| 32-0 | 578-8| 32-5 || B 17 0 12-04] 539-0} 32-4 | 550-9] 33-1 || H 2 0] 17-60 || 527-7| 32-1 || 576-8) 32-6 || B 18 0 15-49] 527-7) 32-5 || 556-5) 33-2 || H 3.0 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 5 0 | 14-33 || 538-0] 32-2 || 580-6} 32-7 || H 21g 63 14.46 || 541-8] 32-9 | 558-0| 33-4 || B 6 0 | 13-61 || 538-3) 32.2 | 578-7| 32-7 || W 22 0 15-67 || 536-3] 32-9 || 562-0) 33-5 | W 7 Of} 13-03 || 538-6] 32-2 || 575-3} 32-7 | H 23 0 16-10|| 527-6] 33-0 || 571-8| 33-7 || W 8 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 D0 12-08 |) 537-9| 32.2 || 572-4] 32-7 || W 1 0 17-73 || 533-6| 33-7 || 564-4| 34-3 | W 10 0 12-80 || 538-5| 32-2 | 569-9) 32.7 || W 2 0 18-01 || 533-0] 34-1 || 567-5) 34-8 || W 1d 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 6 0 13-19 || 538-7] 35-5 || 576-8) 36-3 | H 14 0 14.43 || 554-6| 32-4 || 536-2} 32-9 || H aw) 12-98 || 539-2] 35-7 || 574-2] 36-6 || H 15 0 11-44 || 534-4] 32-6 || 521-7] 33-2 || H 8 0 13-25 || 538.4] 35-7 | 571-6| 36-5 || H 16 0 | 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 0 11:32 || 536-7] 35-7 || 568-9} 36-3 || H 18 0 11-44 || 541-2} 33-4 || 551-8] 34-1 || H He 10 11-77 || 536-9} 35-6 || 566-7| 36-1 || B 19 O 11-69 || 542-4] 53-7 || 552-5] 34-4 || W 12 0 12.481! 537-1! 35-5 || 564-7! 35-8 ' B 20 0 12-48 || 542-6! 33-9 | 553-3! 34-7 || W DECLINATION. Magnet untouched, Feb. 54—March 234, Birmar. Observed 2™ after the Declination, s=0:000140. BaLANcE. Observed 2™ after the Declination, k=0:000010. t+ Extra Observations made. MAG. AND MET, oss. 1845. € 10 Hovrty OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 12—18, 1845. Gottingen BIFILAR. BALANCE, Mean Dime ||" DEcxina- | |__| a of Declina- TION. Cor- |Thermo-|| Cor- Thermo- tion Obs. rected. | rected. | meter. Gottingen | BIFILAR. | BALANCE. Mean Time || DECLINA- || ] of Declina- | TION. | Cor- |Thermo-|| Cor- |Thermo- tion Obs. | || rected. _ meter. | rected. | meter. Observer’s Initial. Observer's Initial. “ | Se. Div. | Mic. Div. o 25 13-69 || 535-1 : 36-8 13-54 | 538-5] 36- 5| 37-0 13-93 | 539-0] 36- BA y es: 13-59 || 539-5| 36- 8) 37-5 -12-90| 539-5| 36. -6| 37-6 13-46 | 540-5 : 12-45 | 542-6 13-02) 540-1 | Se. Div. Mie. Div. = | d. h. | 539-5| 34-1 || 558-1] 349] B [15 5 | 535-3) 34-4 || 559.3 532-4| 34-7 | 558-6 532-8| 35-0 || 558.7 | 533-1] 35-3 || 560-5 531-4| 35-7 || 561-7 540-3) 36-2 || 563-8 541-2| 36:8 || 570-7 536-3| 37-3 || 570-4 540-0| 37-6 || 571-0 539-3| 37-9 || 565-5 538-9| 38-2 || 567-4 538-5| 38-5 || 569-3 539-0) 38-6 || 568-9 538-3| 38-7 || 566-6 | 538-1] 38:8 || 565-6/ sooococos 12-72|| 539-4 11-39 | 542-1 11-61) 540-2 12-11 | 538-8 12-09 | 540-7 12-08) 541-6 13-90 | 540-5 12-95 | 541-0 12-85 | 540-1 12-73) 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 09-33 | 526-8 16-06 || 533-2 14-21 | 536-8 13-34 || 540-9 12-67) 541-3 12-85 || 539-3 12-80 | 539-5 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 ecoocosocoocoocoeooocoooco: 538-2 560-9 541-9 6 || 553-1 537-9 -4 || 551-1 || 536-7 . 554-5 539-0 555-8 539-6| 37-8 || 555-8 540-7 554-5 || 540-0 557-7 536-9 8 | 537-0 535-0 2|| 532-8 | 535-3 534.9 536-8 | 538-0 538-9 | 538-5 539-1 539-8 538-2 5 || 539-4 538-7 537-7 coooocococooocecoocoocoecos SS OW OOOO Mee aaa 0 0 0 0 0 | 0 0 0 0 0 o | 0 0 || 0 0 | 0 0 | 0 0 0 | 0 0 | 0 || 0 538-0 537-7 | 537-4 | 537-3 538-2 537-6 538-3 538-6 537-9 536-7 | 535-1 || 536-0 535-1 538-1 539-1 535-7! 35-8 | 12-87 || 541-4 12-73 || 539-6 12-72 || 538-4 +2 | 11-48 | 536-8 : : 37:8 Mndddd chon dda Sh St he tt tt St nmadaden | coooocoececcocococcocecqceo coleepsofefeR=+f----f- hee coooocooococeceocoo DECLINATION, Magnet untouched, Feb. 54—March 234, Biritar. Observed 2™ after the Declination, =0-000140. Bautance. Observed 2™ after the Declination, k=0-000010. + Extra Observations made. Hourty OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 18—24, 1845. 11 Gottingen BIFILAR. BALANCE. iMean Time |" DECLINA-"||—________ |__|... of Declina- TION. Cor- |Thermo-| Cor- /Thermo- tion Obs. rected. | meter. || rected. | meter. | Gottingen BIFILAR. BALaNce. Mean Time || DEcLiNa- 1 | of Declina- TION. Cor- |Thermo-|) Cor- |Thermo-| tion Obs. rected. | meter. || rected. | meter. | Observer’s Initial. Observer’s Initial = 2 Sc. Diy. e | Mic. Div. 25 19-44|| 535.2] 38-9 || 527-7 16-72 || 534.6] 38-8 || 532-9 18-01 || 528-1] 38.7 || 542-4 20-60 || 520-6| 38-6 || 552-4 22-15 || 526-7] 38.7 || 554-3 20-63 || 534.8| 38.7 | 554.8 17-70 | 530-2| 38-8 || 578-2 17-00 || 541-6| 38-9 || 576-5 15-34|] 540-4] 39-0 | 578-4 5 11-37|| 529-7| 39-1 || 596-6 59-41 || 526-5| 39-2 || 610-0 14-68 | 539-1] 39-3 || 588-5 03-23 || 546.3] 39-4 || 577-7 14-53 || 537-0] 39-3 || 554-1 08-11 || 540.6] 39-1 || 548.9 08-82 || 527-3] 39-0 || 540-5 2 U Se. Div. y Mic. Diy. e 25 11-08) 536-2] 37-7 || 555-8] 37-5 12-55 || 536-9} 37-3 || 556-0| 37-1 12-85 || 537-9| 37-0 || 555-0| 36-6 12-25 || 536-9| 36-6 || 555-0| 36-2 13-02 || 537-3] 36-2 || 552-8) 35-7 12-89 || 537-8} 35-8 || 548-0| 35-2 12-65 || 536-9] 35-4 || 546-9| 34-7 12-01 || 537-1} 35-0 || 546-6) 34-3 12-42|| 536-5] 34-6 || 548-3) 33-8 12-80 || 534-3| 34-2 || 547-3| 33-4 14-10|| 534-1} 33-9 || 542-9] 33.2 16:06 || 535-4) 33-7 || 542-5| 33-3 16-62 || 537-7) 33-6 || 539-4] 33-4 16-75 || 541-8} 33-7 || 540-6) 33-8 15-83 || 540-9} 34-1 || 542-1) 34-5 15-12) 542-5 . 548-9| 35-4 14-20 || 543-0 . 549-6| 36-1 13-90 || 543-1 . 546-2} 36-6 13-64 |) 542-0 . 547-6| 36-9 14-08 || 540-5 . 546-1] 36-9 13-86 | 540-7 Yi 547-7 | 37-0 13-59 || 546-0 * 544-4} 37-1 11-21 || 539-8 * 549-0} 37-0 12-75 || 540-1 D 548-6 ae = ececocoocooooooocoeocoos 16-79 || 531-4 509-4 13-81 || 534-6 2 508:7 12-28 || 533-3 i 533-4 10-68 || 583-7 540-4 11-93 |) 527-2 540-5 13-22 || 533-9 , 543-6 13-47 || 535-1 . 540-8 12-62 || 537-6 : 537-9 13-52 || 524.4 537-0 16-59 || 518-4 548-2 16-35 || 529-5 J 549-4 18-60 || 527-3 5 552-2 17-20 |) 532-2 i 556-6 21-44 |) 533-3 564-9 19-19 |) 532-5 : 573-6 19-29 || 536-9 d 586-3 09-98 || 527-5 : 617-0 16-25 || 533-7 : 605-8 15-92 || 538-8 p 581-8 14-33 || 541-8 . 573-0 12-09 || 541-8 | 575-9 06-63 || 545-4 D 576-2 10-36 || 533-0 . 571-5 13-63 || 536-1 . 567-4 Settee eeeeeeresercrrrer 12-33 || 547.6 . 528-5 11-22) 541-3 . 11-59 |) 538-8 11-93 || 537-8 10-83 || 539-7 11-19 || 542-8 11-35 || 546-2 12-35 || 543-3 12-75 || 540-5 13-49 || 541-2 15-04 || 542-0 17:49 || 541-4 21-91 |) 555-1 19-39 || 538-4 22:03 || 544-1 16-21 || 537-8 15-67 || 542-1 15:17 || 542-0 14-85 || 544-8 14-24 || 542-5 14-67 || 543-9 12:31 || 550-0 07-92 || 528-3 06-77 || 540-6 ceooooocoooecocoooocoecococecoe 52-87 || 528-1] 38-7 || 505-4 09-30 | 528-0] 38-6 || 525-1 15-72] 519-0| 38-4 || 518-6 17-36 || 513-4 : 476-7 18-61 || 529-7| 38-3 || 458-2 11-71 || 528-7| 38-3 | 484-7 14-57 || 533-8| 38-1 || 498-0 14.04 || 529.3| 38-0 || 507-5 15-41 || 532-6| 37-9 || 518-6 15-81 | 524-5| 37-9 | 526-7 13-88 || 531-1| 37-9 || 540-7 19-31 | 528-7| 38-0 |) 548-7 21-93 | 538-0| 38-3 || 557-5 17-56 || 539-1] 38-7 || 569-0 18-14] 537-4| 38-8 | 576-5 06-06! 547-1! 38-8 || 617-0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 08-85 || 542-9 09-42 || 533-7 09-82 | 536-0 14-40 || 525-6} 39.2 18-13 || 534-7] 39-1 08-34 || 534-5} 39-1 09-84 | 533-4) 39-1 18-75 || 529-2! 39-0 ++ Hon hon dws sees e Ss BW hoes Seed 4dsunmmdsdaddsse SS tse esr modes oocosooccoococecos escoocooocsocse + | DECLINATION. Magnet untouched, Feb. 54—March 234, Brrinar. Observed 2™ after the Declination, s=0-000140. BaLance. Observed 3™ after the Declination, k=0:000010. + Extra Observations made. Feb. 214 10224 105, Term-Day Observations made. Gottingen Mean Time of Declina- tion Obs. a. 24 coocoooco: ocococoo oo = _—s won 8seKIrwnwe 10 _ cocoocoocooooconwoooocoo Se —t coooooooocecoo eoocococoeceo BIFILAR. eee | Hourty OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 24—28, 1845. { a Birmar. || BAvance. \e2 Gottingen BIFILAR. BALANCE. ae é | DECLINA- | | =-2] Mean Time | Decrina- Pa i i TION. | Cor- |Phermo-| Cor- /Thermo- Ba of Declina- | TION. Cor- Thermo-| Cor- |Thermo- 25 7 rected, | meter. | rected. | meter. || 5 tion Obs. | rected. | meter. || rected. | meter. || 6 4 ere Sc. Diy.| ° Mie. Div.| 2 a. bh. mil © 4% |i Sc. Div. ° |IMie. Diy.| ° | 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 ‘ 25 14-15) 538-1) 39-1 | 581-6) 39-6 | WwW 14 0 11-42)|| 529-4) 38-7 || 533-1] 39-3 || W 24 48-81) 558-2| 39-3 || 587-9) 39-7 || W 15 Ot 18-47 || 530-2) 38-7 || 506-8| 39-1 || WJ] © 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 25 09-33| 515-5| 39-1 || 553-6] 39-3 | W 17 0 12-38 || 535-5| 38-4 || 539.0] 38-6 || W 19-66 | 521-2) 38-9 || 480-9); 39-0 | W 18 0 12-28 || 534-5] 38-1 || 542-6] 38-2 || W 05-79| 516-8| 38-6 | 492-8) 38-5 | H 19 0 12-72|| 536-6| 37-8 || 547-6] 37-9 || B 08:73 || 524-5] 38-2 || 471-1) 37-9 | H 20 0 12-38] 535-9| 37-6 | 549-3] 37-6 || B | | 21 0 11-52|| 531-4| 37-4 | 554-7] 37-4 || H 25 11-66| 520-9| 37-8 | 444-6) 37-5 | H 22 0 15-07 || 523-5| 37-2 | 553-7] 37-2 || H 04-61] 529-2| 37-3 || 465-8| 36-9 | H 23 0 15-14|) 527-1| 37-1 || 551-9] 37-4 || H 10-20|| 520-3| 36-8 || 478-8) 36-3 || H | 27 0 0 18-82 || 533-9| 37-3 | 552-2} 38-0 | H 12-35|| 533-1| 36-3 || 487-6| 35-6 || H iy (0) 19-71 |, 537-5) 37-8 | 550-5| 38-9 || H 09-03| 518-4| 35-8 | 513-7| 34.8 || H and 22.03 | 541-2) 38-7 | 560-8) 39-8 || B 16-28 |) 527-9) 35-2 || 471-3) 34-1 | H Bi it) 17-81) 535-0} 39-4 | 567-2) 40-6 | B 10-31] 532-3| 34-6 || 474-8| 33-4 || W 4 0 17-02 || 538-1} 40-0 || 572-3) 41-2 || B 14-18] 523-0} 34-0 || 511-1] 32-7 || W Sie 4. 537-1| 40-6 || 574-2| 41-6 | B 17-89 || 528-7| 33-4 || 518-3] 32-1 || B 6 0 39-1) 40-9 || 580-4) 41-8 || W 15-05 || 521-0) 32-8 || 531-1] 31-5 || W TAO: 49 || 537-9| 41-0 || 576-6) 41-8 || W 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 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 20-25 | 535-8) 32-2 || 555-1| 31-9 || W 10 Of|| 25 04-32) 526-5) 40-7 || 565-6) 41-3 | W 22.45 | 534-1| 32-5 || 581-2| 32-9 | W 1120 10-25 || 531-4} 40-5 || 560-8] 41-2 || H 15-72 547-4| 33-1 | 616-6) 33-9 || W 12 0 08-95 | 534-5} 40-3 || 550-3) 40-8 | H 21-10] 532:3| 34-1 || 616-0) 35-1 || W 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 05-05 | 543-5} 35-6 | 609-0) 36-5 || H 14 0 19-48 || 524-1} 39-8 || 502-4] 40-3 || H 06-97] 528-3) 36-0 || 613-8| 37-0 || H 15 0 11-41 || 534-8} 39-6 |) 518-0} 40-0 || H 07-31] 538-1] 36-4 || 603-8| 37-3 || H 16 0 15-18 || 528-2] 39-4 || 543-8| 39-7 || H 13-02|| 540-4] 36-7 | 593-3| 37-4 || H 17 0 13-32 | 535-3 | 39-2 || 543-6) 39-5 || H 12-69|| 539-9| 36-7 || 566-0| 37-4 || H 18 0 12-65 || 535-2| 39-0 || 551-6} 39-2 || H 13-22] 530-4| 36-7 || 527-0| 37-2 || B 19 0 12-15) 540-2) 38-8 || 554-7) 38-9 | W 14-84] 544-6) 36-7 | 450-5| 37-3 | B 20 0 13-83 || 537-3| 38-7 || 558-5| 38-7 || W i 21 0 12-11 | 535-0| 38-6 || 560-7| 38-5 B 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 09-82 || 520-0] 36-9 || 479-3] 37-7 | B 230 13-91 || 527-3] 38-3 || 558-3] 38-3 | W 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 14-51 || 528-8] 36-9 || 500-5} 37-7 || B ie 4) 20-92|| 523-8| 38.3 || 554.6] 38-5 || W 11-07 || 534-0| 36-9 || 523-9] 37-7 || B 2 0 23-01 | 530-6) 38-5 || 561-5| 38-8 || W 08-72 || 524-8| 36-9 || 527-5| 37-6 || B By i) 19-84) 530-6) 38.7 || 563-9} 39-2 || W 17-93 || 534-5| 37-0 | 509.7] 37-7 || H 4 0 19-35 || 538-1] 39-0 || 567-6] 39-6 || W 13-19 | 537-9| 37-0 | 507-0| 37-7 || H 5 0 16-72|| 532-9] 39.4 || 585-6| 39-9 || W 12-42 || 533-6) 37-1 | 525-6| 37-8 || W 6 0 07-47 | 539-6) 39-4 | 596-4) 40-0 || H 16-73 || 539-6| 37-2 | 541-6) 38-0 | H nO 12-95 |, 542-4] 39.4 || 582-0) 39-6 || H 15-81 || 525-2) 37-4 || 542.9| 38-2 | H 8 0 13-19} 534-8| 39-2 || 580-8) 39-1 || H 20-56 || 533-8] 37-6 | 539-1) 38-4 | H 9 0 12-11|| 536-5| 38-8 || 567-1| 38-5 || H 17-46 511-6| 37-8 | 563-8] 38-6 | H 10 Of 01-95 || 543-0) 38-5 || 568-9) 38-1 || H 22-89 || 523-0| 38-0 || 582-3] 38-9 | H 11 Of 09-40 || 531-2) 38-1 || 566-5| 37-7 || B 23-54 || 541-8) 38-2 || 591-3] 39-2 | H 12 0 11:99 || 534-4| 37-8 || 565-3) 37-3 || B 03-34|| 546.6| 38-3 || 668-4| 39-2 || H 17-33 || 539-9] 38-5 || 618-6) 39-3 || H 13 0 || 25 10-94|| 529-4) 37-4 || 561-8) 36-8 || B 14-71 || 536-1] 38-7 || 603-5| 39-3 || B 14 OF 05-60 || 533-0| 37-0 || 504-2) 36.4 | B 13-58 || 535-3] 38-7 || 591-1) 39-4 | B 15 0 08-82 || 528-0} 36-7 || 527-2| 36-0 || B 14-80 || 535-6) 38-8 || 578-7| 39-4 | B 16 0 11-08 || 528-8| 36-3 || 542-0] 35-5 || B 11-52} 537-5| 38-7 || 571-9| 39.4 | B i a) 11-30} 530-8} 35-9 || 551-2] 35-1 | B 11-64} 541-8] 38-7 i 550-8) 39-3 B 18 0 13-07 || 532-2] 35-6 || 558-1| 34-8 || B 09-19) 533-3| 38-7 | 554-3) 39-2 | W 19 0 13-05 || 534-7| 35-3 || 558-6| 34-4 || H 12-89 || 525-4! 38.7 || 538-61 39-3 || W 20 0 12-98 || 533-3| 35-0 || 562-9) 34-1 || H Observed 2™ after the Declination, s=0:000140. DECLINATION. Magnet untouched, Feb. 54—March 234, BALANncet. Observed 3™ after the Declination, k=0-000010. + Extra Observations made. Hovurty OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 28—Manrcu 6, 1845. 13 Gottingen | BIFILAR. BALANCE. | % =| Gottingen BIFILAR. BALANCE. a Mean Time || DecurNa- | & =| Mean Time |} Decurna- |/— | 2.8 of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-| 2°3] of Declina- || TION. Cor- |Thermo-|| Cor- |Thermo-|| 2° tion Obs. rected. | meter. || rected. | meter. S|] tion Obs. || rected. | meter. || rected. | meter, oe | = — | ==! a oh m. © l; Se. Div. ie | Mic. Div. | = || d. bh. m. | 2 u || Se. Div. 3 | Mie. Div.| 5, 28 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 0 12-65 | 528-5| 34-4 |) 567-5) 33-8 | H 6 20 13-99 || 540-2} 36-6 || 555-9) 36-9 B 23 0 13-66 || 528-1} 34-2 || 561-2) 33-8 || H ‘ioe 14-40 || 542-1) 36-6 | 554-3] 36-8 B 100 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) 50" |} 13-84 || 541-8] 36-2 || 554-7) 36-3 B 2:0 19-68 || 534-9| 34-2 || 558-5| 34-3 | H 10 O 10-83 || 541-3} 35-9 || 550-3) 35-9 B 3.0 19-24 || 538-0] 34-3 | 562-2) 34-5 | H EL) 40 || 13-37 || 540-9] 35-6 || 550-0! 35-5 || W 4 0 17-15 || 538-3} 34-5 || 571-0) 34-7 | H 12 0 11.24 || 540-6} 35-3 || 540-3| 35-1 Ww 5 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 we 10 14-01 | 538-3) 34-8 | 573-5) 35-0 B 14 0 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 0 12-78 || 537-4| 34-6 || 549-8| 34-3 || W 9 0 13-32 || 537-0| 34-8 || 570-9} 35-0 B 16 0 12-35 || 537-9) 34-3 | 551-7) 34-0 || W 10 0 12.43 || 538-8| 34-7 || 568-9} 35-0 B 1 ee 12-51 || 537-2] 34-0 || 551-4] 33-7 || W TL <0 12-80 || 537-3] 34-7 || 568-1) 34-9 | W 18 0 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 0 11.86 | 538-1} 33-5 || 555-4) 33-2 B 20.40 11-42 || 537-0| 33-3 || 559.2) 32-9 B 213 0} 25 12-82] 537-3) 39-2 || 560-0} 40-0 | H 21 0 10-61 || 535-1| 33-0 || 557-2) 32-7 || H 14 0 12-28 || 537-9| 39-2 || 557-6| 40-0 || H 22 0 11-27 || 533-5) 32-9 || 555-0| 32-7 H 15 0 12-28 || 537-1| 39-2 || 558-4] 40-0 || H 23 0 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 17 0 10-54 || 539-2| 39-2 || 547-9] 40-0 || H | ae) 17-15 || 536-5| 33-5 || 555-0} 34-3 || H 18 0 09-59 || 536-8} 39-2 | 552-0| 39-8 || H 2 0 17-19 | 537-7| 24-2 || 555-0] 35-2 || H 19 0 11-77 || 537-7| 39-1 || 548-6} 39-7 || W 3) 40 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 21 3 11.46 || 534.9} 39-0 || 557-0| 39-6 | B 5 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 || W 23 0 13.64 || 525-9| 39-0 || 557-3| 39-4 || W 7 0 13-91 || 539.6} 36-7 || 551-8| 37-1 WwW 3.0 0 15.83 || 528-3] 39-0 || 550-9] 39-3 || W 8 0 13-59 || 540-2| 36-7 || 550-4| 36-8 || W ie: 0 17.19 || 532-8} 38-9 || 547-0| 39-3 || W 9 OO] 13:30 || 540-6| 36-4 || 549-5] 36-4 || W 2 0 18-88 || 537-8| 38-9 || 548-3) 39-3 || W 10:41 10-70 || 543-4| 36-0 || 545-8} 36-0 || W 3 0 17.42 || 538-6| 38-9 || 553-3) 39-3 || W Ti) 40 12.23 || 541-1] 35-7 || 546-1| 35-6 || H 4 0 15-69 || 538-0) 38-9 || 556-3) 39-2 || W 12 0 13-32 || 539-1} 35-3 || 548-0] 35-2 || H 5 0 14.26 || 541-6] 38-8 || 557-5| 39-1 || W 6’ 20 14-18 || 536-0} 38-8 || 561-3] 39-0 | H 13. 0 || 25 13-19 || 539-7| 35-0 || 548-9} 34-8 || H 7 0 12-78 || 539-8| 38-7 || 561-9] 38-8 | H 14 0 12-82 || 538-4| 34-7 || 550-4} 34-5 || H 8 0 14-85 || 540-2} 38-5 || 560-5] 38-7 | H 15 0 12-62 || 538-6| 34-4 | 550-4) 34-1 || H 2] 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 10 0 12.33 || 536-1| 38-2 || 562-5] 38-5 || H U7). 00 12-38 || 537-9] 33-7 || 549.4] 33-5 || H 11 0 12-98 || 537-9} 38-1 || 558-7| 38-3 | B 18 0 12-13 || 537-7| 33-4 || 549-2) 33-2 || 12 0 13-27 || 540-4) 37-9 || 555-1] 38-0 B 19 0 11-84 | 537-7] 33-2 || 549-0] 32-9 || W | 20 O 11-62 || 537-8| 33-0 || 547-6] 32-7 || W 123 O || 25 12.90] 540-6| 37-7 || 551-2} 37-7 | B 21 0 10-56 || 536-1| 32-8 || 553-2] 32-6 B i4 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 23 «0 11-77 || 529-3] 32-7 || 554-1) 32-6 || W 16 0 11-15} 535-3} 37-1 || 551-7] 36-9 || B 6 0-70 13-83 || 530-3) 32-7 || 549-8] 33-0 || W 17.310 11-71 || 536-9| 36-8 || 552-8| 36-7 || B 1 0 16-18 || 533-2} 33-0 || 547-2| 33-5 || W 18 0 12-08 | 537-9| 36-6 || 554-0} 36-5 B 2 10 17-42 || 536-1) 33-5 || 540-6] 34-1 WwW 19) ..0 12-04 |] 537-8| 36-4 || 555-2} 36-3 | H 3 0 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 21 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 22 0 12-82 || 535-0} 35.9 | 558-1] 35-9 || H @ 10 | 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) 14-33 || 540-8} 35-0 || 544-3) 35-5 H 4 0 0 15-51 | 532-4) 35-9 | 550-7) 36-2 || H 8 0 13-54 || 542-1] 35-0 || 545-3) 35-5 H iL. ¥O 18-07 | 537-7| 36-0 | 549-9] 36-5 || H 9 0 13-19 || 543-1} 34-9 || 544-6} 35.4 || H 2, «0 16-38 | 537-1] 36-2 | 548-3} 36-7 | H 10 0} 13-12 || 543-0| 34-8 || 545.4] 35-3 || H 3.0 15-89 | 538-6] 36-3 | 550-3) 36-8 || H 11 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 0! 12-92 |! 542-6! 34-7 || 546-4! 35-1 B DECLINATION. Magnet untouched, Feb. 54—March 234. Birizar. Observed 2™ after the Declination, k=0:000140. BaLaNce. Observed 3™ after the Declination, k=0:000010. + Extra Observations made. . AND MET. oBs. 1845, 14 Hourty OpsERVATIONS OF MAGNETOMETERS, Marcu 6—12, 1845. Gottingen || BIFILAR. | BALANCE. |S Gottingen | BIFILAR. BALANCE. re Mean Time | DECLINA- ————_ || S|] Mean Time || Decrina- ee of Declina- || Tron. || Cor- |Thermo-| Cor- Thermo-| $°Z | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°3 | tion Obs. || | rected. | meter. || rected. | meter. S| tion Obs. | | rected. | meter. || rected. | meter. 5a d. h. m. e Toe Se. Div. s | Mic. Div. i | dh. al e ‘ Se. Div. ° Mic. Div. ° 6 13 0 || 25 13-07} 542-0) 34-6 | 546-8 35-0 | B O21 s0 || 25 11-46 || 536°0| 40-7 |) 549.3] 41:0 | WwW 14 0 | 12-92 || 541-4] 34-6 || 546-8] 34-9 || B 22 0 | 12-78 || 527-3| 40-6 || 551-5| 41-0 | H 15 0 | 12:87] 542-2] 34-5 | 546-5] 349 || B 23 2 15-39 || 524-6| 40-5 |} 551-8] 41-0 | H 16 0 12-85 | 541-3| 34-5 || 545-8] 34:9} B | 10 0 O| 17-47 || 521-0| 40-6 || 552-6] 41-2 || H 17 0 | 12-80 || 541-4] 34-5 || 545-1] 34-9 || B iO) 18-63 |) 527-6| 40-8 || 551-8) 41-5 || H ig 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 0O 12:01 || 542-0] 34-5 || 543-3) 34-9 || H a7 80 17-67 || 537-4| 41-3 || 563-6] 42.2 || H 20 0 11-48 || 540-4] 34-5 || 545-1| 34-9 | H 4 0| 16-53 || 540-5] 41-7 || 568-1| 42.5 || H CLE) 10-16 || 536-6| 34-6 || 551-7] 34-9 | W 37 10) 15-34 || 543-5] 42-0 || 569-1| 42-8 || W 92 0 09-96 | 529-8| 34-7 || 550-1) 35-2 | 6 0 | 14.04 || 538-7] 42-3 || 567-3) 43-0 || B 23 0 | 12-18 | 529-5) 34-8 || 546-0) 35-5 | H Tao) 13-12 || 540-4] 42-4 || 564-6] 43.1 || B 7 0 0 16-32 || 529-1) 35-0 539-3] 35:8 | H S50 09-69 || 538-9} 42-5 || 565-2) 43.2 || B ea) 20-85 || 534-4! 35-3 || 529-4] 36-2 | 9 0 11-98 || 539-3] 42-5 || 561-4) 43-0 || B 2 0 20-00 | 531-8| 35-9 || 535-5] 36-7 | H 10 0 09-87 || 538-8) 42-4 || 557-0] 42-7 || B hana | 20-58 || 540-0] 36-4 || 539-3) 37-3 | H 11 0 12-06 || 539-6| 42-1 || 553-6] 42-3 || W ho) 16-73 | 544-5| 36-9 || 544-0) 37-7 | H i2ieO 10-97 || 542-6| 41-8 || 548-5] 41-8 || W Fie) 15-54 || 545-3 37-3 || 548-5) 38-1 | H 60 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 ay 14.84] 544-3| 37-7 || 551-5| 38-5 || B 14 0| 13-05 || 536-8| 41-1 || 552-6] 40-8 || W sO 13-64 || 545-0) 37-8 || 560-3) 38-5 | B 15 0| 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 Of; 09-49 | 540-6) 37-8 || 571-5) 38-5 B 17 10) 12-09 || 538-0| 39-8 || 551-4| 39-0 || W Tero) 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 0} 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 210 10-70 || 531-1| 37-8 || 554-6| 37-0 || H 14 0 13-37 | 538-9] 37-7 || 553-5| 38-3 || W 2250 11-77 || 528-7| 37-4 || 558-9| 36-8 || H 15 0} 12-85 || 538-3] 37-7 || 552-3) 38-2 | W 23500)! 13-07 || 526-1] 37-3 || 557-7| 36-8 || H 16 0 12.38 || 539-3] 37-6 || 550-8| 38-1) WJ 11 0 0 | 15-52 || 528-6] 37-4 || 560-4] 37-3 || B 708) 11-37 | 541-0| 37-6 || 547-7| 38-0 || W ih (om 18-35 || 534-3| 37-5 || 553-2] 37-7 || H 18 0 11-86 || 539-6} 37-5 || 547-1| 38-0 || W 2 0 19-21 || 537-3| 37-7 || 554-1] 38-1 || B 19 O 12-36] 538-7| 37-5 || 546-3| 38-0 || B rt) 19-41 || 534-6} 38-0 || 552-0! 38-6 || H 20 0 12-38 | 538-8| 37-5 | 545-6| 38-0 | B 4 0 18-14 || 540-0] 38-5 || 559-5] 39-1 || B 21 0 11-10] 535-5| 37-5 || 543-5] 38-0 || H 5 10 15-05 || 537-1} 38-9 || 569-1] 39-5 || H 22 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 23 0 13-86 | 525-2) 37-7 || 547-7) 38-4 || H Ten0T 07-57 || 536-2) 39-3 || 573-9] 39-6 || W SF 0°85 17-91 | 524-5] 38.0 || 545-5) 38-7 || H 8 0 11-21 || 541-4) 39-3 || 565-8| 39-5 || W 1 0 19-88 | 529-5| 38.4 || 542.1] 39-3 || H 9 0 12-60 || 538-7] 39-0 || 559-1} 39-1 || W 2 0 20-16 | 532-0] 38-9 || 546-1| 39-9 | B 10 Of 06-07 || 535-7| 38-7 || 556-1| 38-6 || W 3 0 18-48 || 538-6] 39-4 || 555-1| 40-5 || H LON) 11-10 || 536-4) 38-3 |) 551-9| 38-3 || H 4 0 16-97.) 540-8] 40-0 || 564-8) 41-0 | H 12 0 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 | WwW 13. O || 25 13-91)| 537-7] 37-7 || 547-1| 37-3 || H {fest 13-74 | 540-7) 41-0 | 558-3) 41-8 | WwW 14 0 14-41 || 938-7 | 37-3 || 543-4 36-9 || H 8 0 12-93 | 542-5] 41-0 |) 557-2| 41-8 || W 15 0] 12-92) 536-3) 36-9 || 551-2) 36-6 H 9 0 12-76 | 539-2) 41-0 || 558-5) 41-7 | WwW 16> "0),) 12-75 || 537-2) 36-6 || 556-7| 36-2 || H 10 0 13-37 || 542-3| 41-0 || 554-2] 41-6 || W ile {0} 12-78 i 537-8} 36-3 || 557-8| 35-9 || H 110 13-52 | 543-2| 41-0 | 551-9) 41-5 | H HEY 0G 12-55 || 539-4| 35-9 || 557-5] 35.5 || H 12 EG 13-22 | 542-4] 40-9 || 553-8] 41-6 | H 19 0| 12-11 | 538-9| 35-6 || 555-4) 35-1 || W 20 0 11-69 || 538-6] 35-3 || 557-7) 34-6 || W 9 13 0O]}) 25 12-25] 539-9] 41-1 || 550-5} 41-4 | B 210 10:77 || 536-0| 35-0 || 562-6| 34-4 || B 14 Of 14-75 | 536-6| 40-9 || 552-6} 41-3 || B 22 0 | 11-17) 532-2) 34-7 || 558-4 34-3 || W 15 OT 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 zi 14-53 || 538-3] 40-9 || 513-6] 41-5) B J 12 0 0} 13-66 || 532-4) 34-8 || 551-7) 35-0 || W 7 "0 08-99 | 534-8| 40-9 || 538-0| 41-5 | B M40) 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 0 17-98 || 534-8] 35-8 || 551-8] 36-8 || W 19 0 11-27 || 538-1] 40-8 || 545-1] 41-2 | H Bi WOM 18-25 || 539-6| 36-7 || 558-4) 37-7 || W 20 OO} 11-74 || 535-4| 40-7 || 545-8] 41-0 || H 4 0 17-15 || 542-1| 37-5 || 564-1| 38-4 || W DECLINATION. Magnet untouched, Feb. 5‘—March 234. Birizar. Observed 2™ after the Declination, k=0-000140. BALANCE. Observed 3™ after the Declination, s=0-000010, + Extra Observations made. Hourty OBSERVATIONS OF MAGNETOMETERS, Marcu 12—17, 1845. 15 Gottingen BIFILAR. BALANCE. | % _;| Gottingen BIFILAR. BALANCE. | + E Mean Time || Dectina- | | 2-3] Mean Time || Deciina- = 5 es of Declina- TION. Cor- |Thermo-|) Cor- |Thermo-|| 2°¢ | of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-|) a tion Obs. rected. | meter. | rected. | meter. || 5'~] tion Obs. | rected. | meter. |} rected. | meter. |S = | | | \s i a h m. ~ * Se. Div. 2 | Mic. Div. 2 d. Oh.) mm. |] ac. f || Se. Diy. S Mic. Div. 2 | 12 5 0 || 25 15-11|| 541-5] 38-3 || 563-2) 39-0 | W | 14 13 0 |) 25 11-49}) 535.2) 32.8 531-6} 32-5 | H 6 0 13-81 || 539-9| 38-7 || 560-4] 39-4 | H 14 0 10-16 || 530-4| 32-4 || 537-5] 32-1 | H 7 0 13-69 || 541-2] 38-9 || 554-5| 39-3 | H 15 0 13-76 || 530-6| 32-1 | 542-0} 31-7 | H s 0 13-39 || 542-3| 38-8 || 550-6| 39-1 | H 16 0 16-68 || 532-4] 31-7 || 529-6; 31-2 | H 9 0 13-22 || 541-0} 38-4 || 548-4/ 38-6 || H 17 0 10-97 || 532-4} 31-4 | 527-7; 30-8 | H 10 0 12-85 || 540-5] 38-0 | 544-0| 38-0 | H 18 0 13-22 || 532-7| 31-1 || 528-1} 30-5 | H i) 12.46 || 541-2] 37-6 |) 542-3] 37-2 || H 19 0 12-02 || 533-5) 30-7 || 535-1] 30-2 || W 12 0 12-38 || 540-2) 37-1 | 542-2) 36.5 || B 20 0 11-44 || 533-4| 30-4 || 536-3/ 29-9 | W 21 6 11-12} 527-3] 30-2 || 541-5] 29-7 || B 13 0 || 25 12.06] 539-8] 36-5 || 541-9] 35-8 || B 22 0 14-06 || 523-3] 30-0 | 540-8| 29-6 | W 14 0 12-11] 537-7| 35-9 |) 544-2) 35-1 |) B 23 0 14-57 || 527-4} 29-9 || 540-0| 29-8 | W 15 0 11-21] 540-4] 35-4 || 538-6] 344 | B |15 0 O 18-16 || 527-3| 30-1 || 536-9} 30-6 | W 16 0 11-44|| 538-6] 34-8 || 543-0} 33-8 || B 1 0 20-40 || 533-5} 30-9 || 535-5) 31-8 | W ve 0 12-09 || 540-3) 34-3 || 542-2/ 33-2 | B 2 0 19-81 || 531-0| 31-9 || 537-0| 33-0 | W 18 0 11-86 || 540-8} 33-7 || 543-6] 32-7 | B 3.2 19-62 || 541-7| 32-9 || 542-2] 34-0 || W 19 0 12-15] 538-9| 33-2 || 546-4) 32-3 | H 0 17-34 || 543-0) 33-8 || 545.6) 34-7 | W 20 0 12-65 || 535-9] 32-8 || 554-4) 31-9 | H 5 0 16-90 || 546-8| 34-8 || 553-9] 35-8 | W 21 0 15-04 || 528-1} 32-5 || 558-3) 31-6 | W 6 0 05-02 || 540-4| 35-6 || 577-9| 36-3 | H 22 0 15-52|| 530-1] 32.2 | 551-5) 31-5 | H Go 10-81 || 540-3} 35-9 | 592-8| 36-5 | H 23 («0 16-48] 526-2} 32-1 || 547-2) 31-6 || H 8 0 12-04 || 542-9] 35-9 || 583-1| 36.4 | H 13 0 0 19-71|| 526-1} 32-1 || 552-8} 32-1 || H 9 0 12-80 || 531-6| 35-7 || 581-2) 35-9 | H ih phat) 22:74) 526-7| 32-4 || 551-3) 32-8 || W 10 0 12-46 || 544-8| 35-4 || 562-8) 35-4 | H 2 0 93-45 | 531-1] 33-0 || 552-2] 33-7 | H Le '6 15-07 || 548-4| 34-9 || 525-6) 34-9 | B 3 0 21-98} 534-7| 33-8 || 554-0) 35-0 || H 12 0 11-91 || 539-5] 34-3 || 527-6) 34-3 | H 40 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 || 25 04-71]] 527-7| 32-7 || 482-0) 32.7 | H 6 0 13-36 || 543-5] 36-7 || 574-7] 37-7 || B 14 0 12.93 || 531-7] 32-6 || 487-7| 32-6 || H a0 13-81 || 539-6] 37-4 || 568-2] 38-0 || B 15 0 16:05 || 534.2} 32-4 || 503-3] 32-5 | H 8 0 13-23 || 542-8) 37-6 || 560-7| 38-0 | B 16 Of 08-21 || 525-3] 32-2 |) 515-3) 32-3 | H 9 0 11-68 || 539-3) 37-5 || 557-9| 37-7 || B Vien) 15-88 || 524.4] 32-0 || 513-1] 32-0 || H 10 0 12-63 || 542-3) 37-3 || 550-7| 37-3 || B 18 0 14.50 || 532-5] 31-8 || 508-5} 31-7 || H 11 0 13-32 || 542-0] 36-8 || 546-9) 36-8 || W 19 0 11-12|| 533-1] 31-6 || 527-7) 31-4 | W 12 0 12-92|| 541-1| 36-4 || 543-9) 36:3 || W 20 0 11-91 || 533-1} 31-3 || 536-6] 31-1 | W 21 0 13-05 || 530-4| 31-1 || 544-7} 31-1 || B 13 0 || 25 12-60) 541-5) 35-9 || 543-4/ 35-7 | W 22 0 14-08 || 523-9] 31-0 || 546-5] 31-1 || B 14 0 12-11]|| 541-6| 35-5 || 542-6] 35.2 || W 23 0 14-92 || 528-5] 31-2 || 543-5] 31-7 || W 15 0 11-19] 541-4! 35-0 || 540-6} 34-7 || W]17 0 0 17-46 || 526-0) 31-7 || 540-0) 32-4 | W 16 0 13-25] 545-2) 34-6 || 536-9) 34-3 | W 1 0 20-30 || 530-9) 32-3 |) 541-2) 33-3 | W oS) 08-45 || 543-6] 34-3 || 535-3) 33-8 | W 2 0 19-51 || 533-1| 33-0 || 541-5| 33-9 || B 18 0 11-14] 543-6| 33-9 || 536-6) 33-4 | W 3.0 18-20 || 537-8| 33-7 || 549-7] 34-8 || W 19 0 09-93 | 539-2] 33-6 || 541-5| 33.0 | B de) 15-52 || 535-5] 34-6 || 558-8} 35-7 || W 20 0 11-21 || 530-:0| 33-2 || 545-4) 32.5 | B 5 (0 12-78 || 544-8} 35-2 || 569-6] 36-2 || W 21 0 19-31 || 520-5| 32-8 || 543-4) 32.1 || H 6 0 13-12|| 542.2) 35-7 || 563-8] 36-7 || H 22 5 20-94 || 532-9| 32-4 || 532-8| 31-9 || B 7 0 13-34 || 540-7] 36-0 || 563-9] 36-9 | H 23 Ot 13-52] 526-3) 32.2 || 538-5) 31-8 | H 8 0 12-72 || 541-7] 36-1 || 559-4] 36-9 | H 14 0 0 18-38 || 527-6} 32-0 || 534-3] 31-8 || H 9 0 10-90 || 547-0| 36-0 || 551-7] 36-8 | H 1 0 18-60 || 532-7) 32-0 || 535-5| 32.2 || H 10 0 13-36 || 539-0} 36.0 || 545-1] 36-7 || H 2 0 21-19]| 535-1] 32-3 || 541-1) 32-8 | H 11 0 07-13 || 543-7] 35-9 || 539-4] 36-6 | B 3 0 21-79]! 535-7) 32.9 || 552-3) 33-6 || H 12 0 11-79 || 541-3] 35-8 || 521-9] 36-4 || B 4 0 20-18 || 543-1) 33.4 |) 558-2) 34-4 || H 5 0 15-81} 539-2] 34-0 || 568-2} 35-0 || H 13° 0 || 25 12-31]| 534-2] 35-6 || 525-8) 36-1 || B 6 0 15-72 || 541-3] 34-6 || 571-7| 35-1 || W 14 0 13-69 || 536-:0| 35-4 || 533-3] 35-8 || B 7 0 04-55 || 528-8) 34-6 || 604-3] 34-9 || W 15 0 12-72|| 535-2} 35-2 || 538-3| 35-5 | B 8 0 09-93 || 534-0| 34-4 || 593-1] 34-7 || W 16 0 12-15 || 535-1) 35-0 || 538-6| 35-2 | B oO 07-04 || 532-3) 34-1 || 581-5| 34-3 || W 17 0 12-18 || 535-5| 34-8 || 540-3] 35-0 | B 10 0 02-08 || 542.8] 33-8 || 556-7] 33-8 || W 18 0 12-25 || 536-2] 34-6 || 541-0| 34-8 || B 11 0 10-67 || 539-8] 33-5 || 544-5] 33-4 || H LO 0 11-95 || 533-1) 34-4 || 546-2) 34-6 || H 12 0 06-66 || 533-1! 33-2 || 539-2! 33-0 || H 20 0 10-47 || 536-8! 34-2 || 546-5| 34-4 || H DECLINATION. Magnet untouched, Feb. 54—March 234. Brrizar. Observed 2™ after the declination, s—0:000140. BaLance. Observed 3™ after the declination, s=0-000010. + Extra Observations made. 16 Hovur.Ly OBSERVATIONS OF MAGNETOMETERS, Marcu 17—22, 1845. Gottingen | BIFILAR. Batance. || % | Gottingen Brrmar. || Baxance. 3 it: Mean Time || DECLINA- ey 2 =| Mean Time || Decrina- = } | e s 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. jo" al. «0 \\SeDiv.| ° | |Mie Div) 2 @) mm len 2. || SoDiv.| .° Mic mivl| enn 0 | 25 11-49|| 532-1} 34.0 || 550-8] 34-3 || W] 20 5 O || 25 17-78|| 562-6] 36-5 || 575-6| 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 Ca 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 0 19-10) 530-6| 35-0 || 536-4] 35-8 || H 9,40 13-14|| 536-7| 38-8 || 586-7| 39.9 | H 0 | 19-62 | 535-2| 35-6 || 536-9| 36-6 | H 10 O 13-72), 536-6| 38-8 | 569-7| 39-6 | H 0” 19-10 || 538-9] 36-4 || 542-5| 37-7 || H AO) 13-29 || 536-2| 38-5 || 566-6] 39-1 | B 0 | 17-33 || 538-8| 37-5 || 551-4) 38-8 || H 12 0 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 Of 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 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 | | I 20 0 10-68 || 533.9| 34-4 || 552-3] 33-8 || H 0 || 25 13-76|| 538-0} 40-3 | 535-5| 40-7 | W 21 0 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 23 0 14-08 || 520-0) 33-8 || 563-7} 33-9 | H 0 | 13-99 || 536.5| 38-9 || 534-9) 38-6 || W121 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 Ls 40 19-08 || 534-1) 34-3 || 546-1} 34-9 | H 0 10-21 || 535-7] 37-9 || 540-2) 37-5 || W 2 0 19-68 || 534-2} 34-6 || 550-2] 33-4 | H 0 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 5.60 14-67 || 539-3} 35-7 || 559-8| 36-5 || H 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 40 12-87 || 540-5) 36-3 || 553-9} 36-9 | H 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 | 0 | 18-88 || 530-8| 36-2 | 544-8] 36-5 || H 9 Ot 09-26 || 532-2) 36-9 || 565-6| 37-7 || H | 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 J 0 18-81 || 542-0| 36-4 || 554-0} 37-0 || H 1k 0 08-36 || 530-7| 37-7 || 482-5] 38-9 || W | | 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 : 0 15-54 | 548-4] 37-1 || 561-9] 37-6 || H 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 0 03-41 || 530-0} 37-1 | 609-2| 37-3 || W 14 0 15-49 | 533-8] 39-1 || 494.2) 40.4 || W 0 | 09-79 || 526-5] 36-9 || 607-8| 37-0 || W 15 0 09-42 || 529-8) 39-5 || 505-4] 40-7 || W 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 0 06-51 || 527-7| 36-4 || 570-1] 36-5 || B Life 10) 06:90 || 536.4) 40-2 || 492-5] 41-3 || W 0 21-46 || 536-4! 36-2 || 533-2} 36-3 || B 18 0 07-27 || 541-4} 40-6 | 506-4) 41-6 | W 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) 42.2 || B 0 || 25 10-60 || 527-6} 35°6 || 481-1} 35-6 | D 21, 40 11-07 || 532.2] 41.4 || 532-5] 49.4 || H { 0 | 03-21 || 535-5| 35-3 || 467-5| 35-2 || D 22 0 12-62 || 528-4] 41-7 || 537-8) 49.6 || H | 0 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 |) KF 40 04:95 || 534-4} 34-2 | 469-1] 34.0 | D 120 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 0 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 2 0 09-39 || 532-0] 32-7 || 519-9| 32-1 || W 5 (0 14-35 || 541-3| 45-4 || 568-3] 46.6 | B \ 22 0 11-84 || 526-4! 32-4 || 523-4) 32.1 || W 6 0 12-38 | 539-1| 45-8 || 562-1] 46.9 | W 23) 40 15-47 || 514-9] 32-3 || 534-4) 32.3 || W Ow 11-66 || 538-4] 46-2 || 557-4| 47.2 || WJ 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 oO] 21-23 || 525-9! 32-8 || 532-6] 33-6 || H z. “99.0 12-08 || 539-7) 46-6 || 550-0] 47-3 || W 2.40) 22-33 || 535-3} 33-5 || 531-4] 34.7 || B 10 O 10-92 || 541-2} 46-6 || 549-2} 47.4 || W aa0 20-36 || 545-0| 34-4 | 531-4| 25-7 || B Le A0 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 0} 12:56 || 539-5| 46-8 || 544-7] 47.5 || H DECLINATION. Magnet untouched, Feb. 54—March 234, BirILAR. Observed 2™ after the Declination, k—0:000140. BALANCE. Observed 3™ after the Declination, k=0:000010. q ——— 4 i ‘ ‘ + Extra Observations made. March 194 10%—204 10, Term-Day Observations made. Hovurty OBSERVATIONS OF MAGNETOMETERS, Marcu 23—28, 1845. 17 Beats BIFILAR. BALANCE. ‘w_] Gottingen BIFinar. BALANCE. ie: See ine DEcLINA- 5 = | Mean time DECLINA- > 3 of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- 2 of Declina- TION. Cor- |/Thermo-| Cor- |Thermo-| 2°E tion Obs. rected. | meter. || rected. | meter. || > tion Obs. rected. | meter. | rected. | meter. || 6 ~ | es ° , Sc. Div. ~ Mic. Div. 2 a eh a ~ ’ Se. Div. a Mic. Div. z 23 13 Ot| 25 08-06) 538-8 50-1 || 507-0| 49-8 || B | 25 21 O |] 25 11-14]] 526-6] 42-3 | 555-8} 42.0 || B 14 O+| 17-53 || 535-3| 49-7 || 406-5| 49.4 || B 22 0 10-94 || 526-8| 42-1 || 555-2) 42.0 || W 15 Ot 04-37 || 532-2] 49-3 || 407-0; 49-0 || B 23 0 11-57 || 519-3} 42-1 || 557-6) 42-2 || W 16 0+ 04-01 || 529-6| 48-8 || 461-9} 48-5 || B | 26 0 O 16-93 || 530-8| 42-3 | 548-3) 42-7 || W 17. OF 05-65 || 508-6| 48-4 || 461-8] 47-9 || B 1 0 20-30 || 534:6| 42-6 | 540-2) 43-4 || W 18 Ot 13-39 || 537-3| 47-9 || 475-6| 47-3 | B 2 0 23-78 || 532-5| 43-3 | 554°6| 44-3 || W 19 0} 09-30 || 537-2| 47-4 || 521-8] 47-7 |i 3.0 21-41 || 539-7| 44-0 | 570-1} 45-2 | W 20 0) 09-91 || 539-0| 47-0 || 523-3) 46-1 || H 4 0 21-84 || 538-3] 44-9 || 582-8| 46-0 || W Zu .0 | 11-08 || 526-1| 46-6 || 540-4| 45-7 | W 5 Of 12-67 || 542-1] 45-7 | 594-4) 46-7 || W 22 0} 13-10 || 521-7| 46-2 || 544-2] 45-5 | H 6 Of 08-11 |) 536-7| 46-2 | 626-0) 46-8 || H 23 0} 16-62] 519-5| 45-9 || 540-3} 45-6 | H a0 05-06 || 544-9} 46-3 | 618-5] 46-9 | H 24 0 0} 18-30 || 525-6) 45-8 || 533-0) 46-0 || H 8 Ot 04-19 || 553-2) 46-2 | 549-8) 46-8 || H 1 o| 22.57 || 525-7| 46-2 || 536-1| 46-6 || W 9 0 12-02 || 534-9; 46-2 | 568-5} 46-8 | H 1G 23-54|| 540-7| 46-6 || 541-4) 47-3 || H 10 Ot 16-93 || 527-9| 46-0 || 539-2| 46-7 || H 3) 40 24-69 || 548-5] 47-0 || 558-7| 48-0 || H UIs 307; 08-82 || 540-7) 46-0 || 496-8| 46-7 || B 4 0 24-32|| 538-8] 47-6 || 589-0| 48-5 || H 12 OF 09-06 || 544-1) 46-0 || 502-0) 46-7 | B 5 2 23-01 || 544-9| 48-1 || 616-3) 49-0 || H 6 Ot 15-51 || 540-4] 48-6 || 644-8| 49-3 | B 13 of 25 09-84 || 535-1) 45-9 || 499-3) 46-6 | B 7 Of 08-58 || 548-1] 48-9 | 631-3| 49-4 || B 14 0 11-64 || 516-3| 45-9 || 507-4| 46-4 || B 8 Ot 07-17|| 532:6| 49-0 || 611-2} 49-5 || B 15 OF 20-87 || 513-0| 45-8 || 447-7) 46.3 || B 3.0 07-54 |) 532-5] 49-0 || 602-6| 49.4 || B 16 Of 09-22 || 537-5| 45-7 || 477-8) 46-2 || B 10 0 10-83 || 533-5) 48-8 || 582-0) 49-0 || B 17 207; 08-01 || 530-0) 45-6 || 513-0} 46.0 | B 11 21 09-33 || 535-8| 48-4 || 558-4) 48-3 | W 18 0 14-92 || 524-1] 45-4 || 532.9] 45-7 || B 12 Of 16-25 || 536-7.| 48-0 || 544-2) 47-7 || W 19 0 11-62 |) 536-3] 45-1 | 534-3] 45.4 || H 20 0 09-91 || 535-7| 45-0 || 545-6] 45.3 || H 13 Ot) 25 05-96|| 543-5) 47-6 439-8| 47-1 || W 21 0 08-72 || 533-6| 44-9 | 550-2) 45.2 || W 14 Ot) 24 53-72} 512-6 47-1 || 430-0} 46-5 || W 22 0 08-55 || 528-6| 44-8 || 553-2) 45.3 || H 15 Of) 25 04-14] 505-8} 46-6 418-2| 45-9 || W 23 0 11-21 |) 528-5] 45-1 | 556-8) 45.7 || H 16 Of 00-71 || 533-8} 46-0 || 352-7| 45:3 || W127 0 0 14-15 || 529-4| 45-4 | 550-0) 46-3 || H 17° ‘OF 05-11|| 511-3) 45-4 || 421-2) 44-7 || W ip (0 18-81 || 532-3| 45-9 || 544-9! 47-0 || H 18 0 10-03 || 532-2) 44-9 || 483-7) 44.0 || W 2 0 19-91 || 522-5] 46-7 || 548-2] 47-7 || H 19 0 09-98 || 529-4| 44-3 || 521-9] 43-2 || B 3.0 17-34 || 539-1] 47-3 || 558-9| 48-5 || H 20 0 10-53 || 517-2| 43-6 || 543-9| 42-4 || B 4 0 17-54 || 547-8| 47-8 || 562.9| 48-7 || H 21 0 10-90 || 520-9| 43-0 || 555-4] 41-9 || H 5 Of 15-18 || 518-8) 48-0 || 600-4| 49.0 || H 22 0 12-04 || 518-4) 42-6 || 553-7} 41-7 || H 6 0 13-05 || 539-6| 48-3 || 605-5] 49.0 || B 23 0 15-04 || 511-0) 42-2 || 550-7| 41-7 || H 7 0 12-58 || 542-3| 48-4 || 611-5} 49.0 || B 25 0 0 16.45 || 517-4] 42-2 || 548.6) 42-2 || H 8 Ot 06-03 || 540-3} 48-4 || 603-5; 49.0 || B 1 0 19-51 || 530-8) 42-4 || 548-6) 42-7 || H 9 Of 09-29 || 527-4| 48-5 | 531-1] 49.3 || B 2 0 20-35 || 533-6| 42-7 || 560-1} 43-3 || H 10 O 08-79 || 533-3] 48-7 || 546-6) 49.5 | B 3 0 18-16 || 542-3} 43.2 || 573-4) 44-0 | H 11 0 09-67 || 530-8} 48-7 | 537-1) 49.5 || W 4 0 17-40 || 540-8| 43-8 || 577-1| 44:5 | H 12 0} 09-13 || 534-7| 48-7 || 532-7] 49.4 || W 5 0 15-12]| 533-1} 44.2 || 601-9} 45-0 | H ie 6 Ot 10-30 || 542-1} 44.6 || 615-6} 45-2 | W 13. 0 || 25 12-28 ]| 534-7] 48-7 || 537-7) 49-3 || W cet) 13-66 || 541-5| 44-8 || 583-5] 45-3 || W 14 0 14-80 || 534-2) 48-7 || 532-5] 49-1 || W 8 0 ‘12-55 || 539-1] 44.8 || 570-0] 45-3 | W 15 0 12-69 || 528-0] 48-6 |} 535-9} 49-0 || W Bhai) 11-77) 540-3] 44-8 || 565-3) 45-2 || W 16 0 12-56 || 538-7| 48-5 || 531-4|) 48.9 || W 10 0 10-43 || 541-2] 44-7 || 561-5) 45-0 | W 17 0 10-20 || 537-2} 48-4 | 537-9) 48-7 || W 11 0 09-80 || 536-3] 44-6 || 556-5| 45-0 || H 18 0 10-75 || 538-6 | 48.2 || 535-9] 48-4 || W 12 0 11-30 || 543-0} 44-4 || 543-7| 44.8 | H 19 0 10-47 || 537-2] 48-0 || 539-3) 48-0 || B 20 0 |} 09-30 || 535-2] 47-8 || 544-5) 47-8 || B 13 Ot|| 25 04-89]! 550-9} 44.3 | 498-9) 44.7 | H 21 0 09-37 || 532-9] 47-6 || 541-9] 47-6 || H 14 Of, 04-86 || 532-4) 44.1 || 508-1) 44-5 || H 22 0 09-89 || 528-8] 47-5 || 539-4| 47-6 || H 15 0 11-91 || 527-1| 44-0 || 504-6) 44.2 | H 23 0 11-00 || 525-1] 47-4 || 532-9] 47-7 || H 16 0 08-29 || 531-2] 43-7 || 517-6) 44-0 || H | 28 0 0 15-99 || 530-6| 47-7 || 524.8) 48-0 | B 17 0 10-58 || 532-0| 43-5 || 534-9| 43-6 || H 1740 18-52 || 533-1| 47-8 || 523-0] 48-5 | H 18 0 12-29 || 534-6} 43-2 || 539-9) 43-2 | H 2 0 18-16 || 536-4] 48-1 || 535-8) 49-0 || H 19 0 08-83 || 528-6) 42.9 || 548.9| 42-7 | W 3.0 17-60 || 535-6} 48-4 || 543-7| 49.4 || H 20 0 | 10-67 || 527-7| 42-6 || 557-4| 42-3 || W 4 0 16-05 || 540-0! 48-9 || 550°2| 49-7 || H DECLINATION. Torsion removed, March 234 234",—18}°. Effect of + 10° of torsion = —0’84. Birinar. Observed 2™ after the Declination, s=0:000140. MAG. AND MET. obs. 1845. BaLaNce. Observed 3™ after the Declination, k=0-000010. + Extra Observations made. 18 Gottingen Mean Time of Declina- tion Obs. OnmDIAMNPWNHe SD 10 11 12 0 0 | 0 0 | 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 (sal 0 | coooocooocooocoocecocsececececoe Hovurty OBSERVATIONS OF MAGNETOMETERS, MArcu 28—ApRIL 2, 1845. DECLINA- TION. 14-20 12-51 12-11 12-11 08-68 56-27 04-91 10-13 11-71 11-21 11-64 10.16 09-96 10-53 09-12 10-94 || 13-14 14-71 15-98 13-36 18-23 21-41 21-14 18-60 16-79 12-89 07-37 10-33 09-30 05-69 03-90 07-85 11-35 10-95 11-12 09-74 09-82 10-01 09-66 09-02 09.44 10-00 | 11-95 14-60 17-93 19.04 18-84 16-48 13-70 12.46 || 12.28 12-30 || 12-09 12-15 11-61 BIFILAR. BALANCE. 12-35 Thermo- meter. Cor- rected. Se. Div. 544-7 542-3 542-2 540-9 540-4 541-6 525-6 533-7 49-4 535-7 533-9 533-9 534-6 532-2 533-9 532-9 533-1 526-3 522-9 521-4 528-3 537-9 533-9 542-8 535-9 543-8 541-1 548-8 541-9 543-9 539-3 530-7 533-7 538-9 536-9 537-1 536-1 534-7 536-6 534-8 533-1 531-0 527-0 524-2 525-3 528-7 532-7 537-0 539-0 539-6 542-8 543-5 545-1 545-9 545-1 542-5 546-4 49-7 49.3 48-8 || Thermo- meter. Cor- rected. Mic. Div. 558-9 49-0 Observer’s Initial. mn dddddubobnnnnmeeddeddd wonhnnddddeddgggdge needs | Gottingen Mean Time of Declina- tion Obs. coooooocoeccocoococecoceco oooocoooo DECLINA- TION. 25 10-13 09-98 | | 537-4 | 535-2 535-6 BIFILAR. BALANCE. \Thermo- meter. Cor- rected. Se. Div. 2 540-2} 48-3 539-0| 47-8 47-3 46:8 46-3 45:8 45-3 44:8 44-4 44-0 44.0 44-1 44-6 45-1 45-8 46-5 47-1 535-4 533-9 48-8 48-2 47-6 46-9 46-3 45-6 45-0 Thermo- meter. Cor- rected. Mic. Diy.| ° 535-2| 48-3 540.0} 47-7 542-1) 47-1 545-6| 46-5 544:5| 45-8 546-2] 45-2 546-7| 44-6 547-0| 44-1 553-7] 43-7 554-3 | 43-6 556-1} 44-0 548-1} 44-5 544-5| 45-1 545-1] 45-9 550-2} 46-6 546-7] 47-3 549-1] 47-9 550-2] 48-6 550-0] 49-1 549-3} 49-2 551-0} 49-2 544-0] 49-1 540-5} 48-8 542-7] 48-5 539:3 535+3 538-7 528-6 528-9 532-9 538-3 543-5 547-9 545-8 540-0 535-4 522-0 529-1 539-4 542-5 544-2 540-8 551-5 555-8 556-3 549-6 541-7 536-1 48-0 47-6 47-1 46:5 45-9 45:3 44:7 44.2 43-8 43-6 43-7 44-0 44-6 45-7 47-2 48-7 50-0 50-9 515 51-5 51:3 51-0 50-5 49-9 532-9 535-7 540-2 541-5 542-2 535-4 540-9 547-4 49-3 48-5 47-7 46-8 46-0 45:3 44-6 43-9 Observer’s Initial. wwdddess SSO ooo Se Torsion removed, April 24 245, 3}°.* Effect of + 10° of torsion =—0/-84. BALANCE. Observed 3™ after the Declination, =0-000010. DECLINATION. Birizak. Observed 2™ after the Declination, s=0-000140. * April 24.23», The line of detorsion of the suspension thread varied during the observation ; at first it was about N. 3° E. to 8. 3° W.; it was ultimately N. 5° E. to 8. 5° W. + Extra Observations made. Gottingen Mean Time of Declina- tion Obs. + m. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 0 0 0 0 cooocooocecececocoecd Birizar. Observed 2™ after the Declination, _=0-000140. 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 08-59 06-59 06-43 09-93 13.49 12-18 11-49 10-23 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 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. Cor- rected. Se. Div. 530-2 524-3 515-9 521-3 530-3 529-5 531-0 542-4 540-6 546-3 545-8 546-2 539-0 538-3 537-7 540-8 539-8 538-6 538-4 541-0 541-0 544-7 543-1 538-1 532-9 529-6 521-8 515-5 514-9 520-4 535-4 538-0 538-1 539-4 542-1 541-0 542-1 539-6 541-7 544-2 538-8 538-1 539-0 540-7 536-8 538.2 536-8 535-3 528-0 522-4 519-2 515-7 524.8 529-8 535-6 537-6 Thermo- meter. | 44.4 BaLaNce. Cor- || rected. Mie. Diy. 550-7 554-3 553-4 541-9 535-7 536-0 548-9 554-2 554-6 565-5 586-8 602-1 570-2 568-4 557-0 545-8 540-6 541-5 542-0 542-4 541-4 537-6 539-3 549-2 548.3 | 551-6 553-3 548-1 540-9 542-2 546-1 552-8 559-8 561-4 561-6 561-3 559-6 559-9 557-3 542-8 540-8 546.9 551-0 552-1 553-8 555-0 556-6 562-0 565-9 563-3 559-6 542 532-8 533-5 541-0 549-4 Thermo- 47-0 Observer's Tnitial. Sl UMS oda Mss Gottingen Mean Time of Declina- tion Obs. ceooooocoooocecoeocecoocooceoces oecooocoocococeNcococococseoccos er TION. 25 14-20 12-20 11-37 10-48 10-38 10-65 10-85 09-54 09-86 10-75 10-61 10-47 10-80 09-69 07-51 09-74 15-45 16.21 14-77 12-72 10-78 06-76 12-11 11-61 11-54 10-92 11-62 11-69 10-87 10-47 10-47 09-64 06-63 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 | DECLINA- || 12-15 | 08-46 | 12-63 | 20-65 | 20-25 | 15-69 | 10-60 | 07-40 08-01 BIFILAR. BALANCE. | Cor- rected. Thermo- meter. Cor- rected. |Thermo-| meter. | Se. Diy. 541-6 544-0 546-5 545-4 543-9 541-7 542-7 540-5 540-6 ° 46-9 Mic. Div. doit | Pr E-E-|--)--1--f:-]--]:- 46-3 SSO OOS WS 19 8 ,, Observer Initial. aa == DECLINATION. Magnet untouched, April 24—May 84. BALANCE. Observed 3™ after the Declination, k=0-000010. + Extra Observations made. 20 Hovurty OBSERVATIONS OF MAGNETOMETERS, Aprit 8—14, 1845. Gottingen Brrmar. || BALance. Mean Time || Dectina- |———{~—_||___{ ___ of Declina- TION. Cor- |Thermo-)) Cor- |Thermo- tion Obs. | rected. | meter. || rected. | meter, Gottingen BIFILAR. BALANCE. Mean Dime || DecnnA- | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- tion Obs. rected. | meter. || rected. | meter. Observer’s Tnitial. Observer’s Tnitial. = ‘ || Se. Div. a Mic. Div. Cs 25 11-00|| 537-7| 46-4 || 546-3] 45-7 10-94 || 538-5] 45-9 || 549-2] 45-2 10-70 || 538-5| 45-4 || 552-9] 44-6 10-70 || 539-4] 44.9 -2| 44.0 10-27 || 539-4] 44-3 || 556-0| 43-3 10:00) 540.4) 43.7 4) 42.7 08-65 || 538-6| 43-1 -0| 42-0 06-83 || 536-4 “7 I -6| 41-6 05-67 | 528-6 3 || -7| 41-4 07-58 || 521-0 -0 || 9] 41-4 10-97 || 518-9] 42.0 || -1} 419 14-71 || 522-7 17-98 || 529-0 19-64 || 537-5 17-76 || 541-7 15-64 || 541-7 13-96 || 548-3 11-27 | 545-1 08-95 || 544-8 08-01 || 548-8 10-21 || 543-7 10-21 || 543-7 10-40}| 544.2 11-14|| 552.6 2 Se. Diy. c Mic. Diy. s 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) 42-0 || 536-0) 42-5 19-08 || 534-2 -4 || 542-6] 42.9 17-09 || 536-3 : 547-0} 43-3 14.46 || 543-1 3° 552-0} 43-6 12-62 || 541-6 . 557-1} 43-7 11-37 || 546-5 : 551-4! 43-7 11-17 || 545-3 . 549-4| 43.7 12.08 || 544-8 : 550-1} 43-5 07-13 || 545-6 5 549-6] 43-2 09-27 || 541-3 : 547-7| 42-8 10-09 || 542-3 “ 543-5| 42-3 sesoooocoooooocecscoos 11-03 || 541-6 . 542.4] 41-8 11-00 |) 541-6 D 544.2} 41-3 10-87 || 540-1 : 546-8} 40-8 10-20 || 540-4 * 547-1} 40-3 09-79 || 540.2 B 549.6 09-08 || 541-8 . 551-2 08-14 || 541-3 D 555-6} 38-8 05-77 || 538-7 Ec 558-2) 38-5 05-32 || 532-1 D 561-1} 38-5 06-86 || 526-0 5 559-6} 38-5 10-67 || 523.3 : 557-0| 38-7 14-35 |) 543.2 o 555-3} 39-5 18-45 || 529-0 . 548-3} 40-3 20-67 || 535-9 : 544.2} 40-8 18-77 || 536-9 : 549-6] 41-5 16-53 || 539-9 . 552-0| 42-2 14.20 || 544-2 . 556-9} 43-1 12-15 || 542-8 . 561-3} 43-5 10.68 || 545-2 : 560-0} 43-8 10-70 || 545-2 . 559-2} 44-0 09-27 || 548-1 5 552-2} 44.0 10-36 || 543-0 . 552-0} 44-0 10-90 || 542.2 D 547-9} 44-0 10-88 || 541-3 . 543-9} 43-7 10:43 || 542-4 10-16 |) 540-1 10-23 || 539-7 10-07 || 540.4 10-16) 540-6 09-62 || 541-5 08-79 || 539-1 08-06 || 536-7 06-88 | 532-5 07-65 || 526-7 10-68 || 523.4 14-55 || 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 _ w 52-40) 453-0 D 180-2} 43.3 59-59 |) 427-5 . 216-0} 43-0 13-32 || 291- 2 : —45] 42.9 47-20 || 528.0 5 288-6] 42:8 06-46 || 524-5 +3 || 448.2) 42-7 03-00 || 537-0 D 499-9| 42-6 07-38 || 531-0 . 518-5] 42-5 03-23 || 539-8 . 509-6] 42-5 06-59 || 522-7 . 523-7| 42-4 08-14 || 526-2 . 530-8] 42-7 10-74 || 531-2 : 525-0] 42-9 15-78 || 517-8 . 531-8] 43-2 20-42 || 525.2 5 532-9] 43-3 20-69 || 517-6 . 560-8] 43-5 20-50 |) 533-1 : 569-1] 43-6 14-50!) 538-6 : 650-6! 43-7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ——— ee 11-17|| 542-5 11-03 |) 541-1 10-88 || 540-8 10-70 || 540-6 10-09 | 539.9 09-44 || 540.3 q 08-16 || 539-8 : : 41-3 06-37 || 537-2 : . 41-1 Mew wines Bees is cooooocoocooooocoeococoocococococo ToS ted MS SSS Seed dodossaass Ago ww mmm bh a | oooocococecocoow coooococo + Deciination. Magnet untouched, April 24—May 84. Birizak. Observed 2™ after the Declination, k=0-000140. BaLance. Observed 3™ after the Declination, k=0:000010. + Extra Observations made. Hourty OBSERVATIONS OF MAGNETOMETERS, APRIL 14—18, 1845. 2] Gottingen BIFILAR. BALANCE. * _-| Gottingen | BIFILAR. BALANCE. * = Mean Time || Deciina- | &-£| Mean Time || Decrina- Z5 of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| $°2] of Declina- | TION. | Cor- |Thermo-|| Cor- |Thermo-| 3°E tion Obs. rected. | meter. || rected. | meter. || 5 ‘5a tion Obs. | rected. | meter. || rected. | meter. 5 bar. a. in, og] Ee Se. Div. 2 Mic. Diy. > Cee ame |e Se. Div ° Mic. Div. ® 14 5 Of} 25 16.87|| 541-8 43-4 || 603-5| 44.0 | H |] 16 13 0 | 25 11-12] 538-1] 51-5 || 537-1) 51-0 | B 6 Of 11-59|| 543-5] 43-6 || 619-8| 44.2 | B 14 0} 11-10|| 536-7) 51-0 || 523-2) 50-4 B 7 ot 00:57 || 543-8) 43-7 || 633-7| 44-3 B 15 0 10-18 || 535-2} 50-5 || 529-7) 49-5 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 17 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 1s 0 08-95 | 533-4| 49-0 || 549.3] 48-4 | B a. 0 12-36 || 530-3] 43-2 || 512-1| 43-5 || W 19 0 08-48 || 531-4] 48-7 || 553-4| 48-0 || H 12 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 0 | 06-56 || 525-6} 48-1 | 559-1) 47-6 || W 13 ¢0 | 25 12-55 || 535-2| 42-9 || 483-5| 43.3 | W 22 0| 08-38 || 522-6| 48-0 || 555-1| 47-6 | H 14 0 09-67 || 527-7| 42-8 || 499.4] 43-2 || W 23° 0 11-41 || 521-1] 47-9 || 545-8) 47-6 || H 15 0 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 0 10-30 || 530-3| 42-6 || 521-5] 42-9 || W Fame 14.85 || 522-0] 48-2 || 535-3] 48-8 || H 17 0 11-54 || 533-3} 42-5 || 524-6] 42-8 | W 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 0 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 5 0 13-74 || 540-6] 51-6 || 541-5] 52-7 | H 21 O 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 0 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 0 15-01 || 521-5] 43-5 || 528-8) 44-3 || H 9 0 07-87 || 546-2] 53-9 || 547-4) 54-6 || H if <0 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 if 40 09-96 || 538-5| 53-9 || 543-9| 54-3 || W 3 0 17:94|) 526-1) 45-4 || 543-7| 46.2 || H 12 0 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 0 12-92 || 546-3) 46-8 || 561-0| 47.2 || H 13 O || 25 10-53}| 538-4| 53-4 || 537-3) 53-8 || W 6G; 10 11-49] 545-8| 47-2 || 560-7) 47-4 | W 14 0 10-54 || 537-7] 53-1 || 536-5) 53-4 | W m0 12-72|| 547-4| 47-4 || 546-3] 47-5 || W 15 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 16 0 09-40 || 537-3] 52-6 || 537-2) 52-7 || W 9 0 02-99 || 549-9] 47-3 || 540-2} 47.2 || W 17 0 08-79 || 536-4| 52-4 || 537-0] 52-4 || W | 10 0 07-57 || 539-9} 47-0 || 532-9| 46-9 || W 18 0 08-08 || 535-0] 52-2 || 540-0} 52.2 || W ‘0 10-97 || 535-4| 46-6 || 529-3] 46-5 || H 19 O 06-73 || 533-3| 52-0 || 540-6] 52-0 || H 12 0 10-13] 538-9] 46-2 || 521-6] 46-1 || H 20 0 06-06 || 531-8] 51-8 || 539-9| 51-7 | H O10 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 2a 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" "OD 11-07 || 523-6] 51-6 || 537-5] 51-9 || H 15 0 08-63 || 532-6| 45-0 || 517-3} 44.9 | H | 18 0 O 15-11 || 526-1} 51-8 || 531-2) 52-2 | H 16 0 11-07 || 525-6| 44-6 || 524-4) 44-5 || H | eae 16-68 || 531-1} 52-0 || 520-9) 52-5 || H 17.0 10-36 || 532-9| 44-2 || 525-6| 44-1 || H 2 0 18-07 || 538-0] 52-3 || 524-2] 52-8 | B 18 0 09-02 || 535-1) 43-8 || 528-2) 43.7 || H 3 10 19-89 || 551-5| 52-7 || 529-2] 53:3 || H 19 0 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 8) 50) 17:96 || 536-6| 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 0 07-87 || 527-0] 42-7 || 545-7) 42-8 || W 7 *0 13-23 || 550-6| 53-7 || 579-5| 54:3 || W 23 0 10-48 || 523-7| 42-7 || 548-0| 43-4 || W 8 Of 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 0) 16-45 || 523-3] 44-8 || 539-6| 45-7 || H 10 Ot 01-59 || 533-1] 53-3 | 546-6) 53-7 || W 240 17-15 || 531-8} 46-3 || 537-4| 47-1 || W 2) 10 08-80 || 538-0} 53-0 || 550-6} 53-2 || H 3.0 16-23 || 535-4] 47-7 || 537-3] 48-5 || W 12 0 10-20 || 538-3| 52-8 || 544-7) 52-7 || H 4 0 BEG) ||) onc0-- |) “S35 5RNE RSCeRnenn secon WwW 5 (0 15-18|| 538-4] 50-7 || 537-6) 51-2 || W 13 OF 25 10-16 539-7| 52-4 || 539-1] 52-2 || H 60 13-22 |) 541-6| 52-0 || 549-6] 52-2 || H 14 OF 07-89 || 536-2| 52-0 || 477-7| 51-7 || H ve *0 10-67 || 544-5) 52-8 || 557-7) 52-8 || H 15 OF 00-94 || 525-1} 51-7 | 482-0) 51-4 | H 8 0 09-29 || 543-9) 53-3 || 561-2) 53-0 || W 16: 0 08-41 || 521-3} 51-4 |) 500-7) 51-0 | H 4 9 0 09-12 || 539-9} 53-2 |) 557-2] 53-0 | H Lv 08-05 || 536-5] 51-0 || 485-3] 50-6 | H 10”-0 10-61 || 539-9} 52-9 || 548-3} 52-7 || H 18 0 05-60 || 534-1) 50-7 | 507-9) 50-2 || H } i. 0 10-53 || 538-4) 52-5 || 544-4] 52.3 B 19 0 04-04) 535-0} 50-3 521-8) 49-7 || W . 12> 0 10-95 || 538-6! 52-0 || 540-6! 51-7 || B 20 0 04-48 || 530-0] 50-0 || 526-2! 49.3 | W DECLINATION. Magnet untouched, April 24—May 82. BriFitar. Observed 2™ after the Declination, k=0:000140. BaLAaNnce. Observed 3™ after the Declination, =0000100.., + Extra Observations made. April 164 934. The cotton cover of the bifilar magnetometer was replaced, having been removed at 134 15». MAG. AND MET, oBs., 1845. HS Gottingen Mean Time of Declina- || tion Obs. d. oh. 18 21 22 23 19° 0 OHUMRAPRwWHe ecooocooocooooscocowoos ot + 0 0 0 0 8 o | 0 0 0 0 2 0 0 0 0 0 0 0 | 3 0 0 0 HourLy OBSERVATIONS OF MAGNETOMETERS, APRIL 18—24, 1845. | DecLina- BIriLar. eocooocccoeoonweccoooeso | 527-4) 49-8 | 526-1 || 525-8 || 541-2 | 570-1 | 547-6 | 530-2 | 519-6 | 530-5 || 548-4 | 545-3 56 |) 540-5 3| 535-5 | 538.1 BIFILAR. BALANCE. Cor- |Thermo- rected. | meter. Se. Div. 524-3 529-6 536-1 546-9 549-0 549-4 538-4 534-5 525-9 530-5 533-7 530-0 524-4 530-2 525-3 518-9 509-8 511-6 512-5 524-1 526-7 537-4 540-2 547-6 545-5 537:8 536-6 | Mic. Div. | 527-1 | 527-9 | 539-1 | 555-7 DECLINATION, Cor- |Thermo- rected. 533-1 531-0 534-4 513-8 515-3 523-9 541-2 557-4 534-2 540-2 543-4 529-9 HHSSsSestto tt totes CEE i-t--]--1--]:-1- Gottingen Mean Time of Declina- tion Obs. Observer’s d. | DEecLINa- sooocooco cos cooooocoscoocooooooocooooocooocoos eooocoocooccocececooooocoscosso TION. 25 13-69 12-42 11-08 09-51 10-33 09-82 11-21 | 08-53 09-32 09-96 09-51) 09-32 10-54 07-74 06-56 | 05-62 | 05-20 | 08-08 11-44 17-15 | 19-28 | 20-67 | 19-93 | 18-23 | 16-41 | 14-64 | 12-49 | 11-84 | 09-73 | 09-47 10-13 10-97 | 10-56 10-50 | 08-88 09-02 07-40 | 07-13 | 08-56 07-81 09-69 08-95 11-34 14-91 18-30 | 22-24 21-19 22-11 19-31 18-85 1585 14-50 12-65 11-34 BIFiuar. Cor- |Thermo- rected. | meter. BALANCE, Cor- |Thermo- rected, | meter. 10-90 Se. Div. q 540-3| 55-7 545-9| 56-7 544-0| 57-2 544-6 | 57-4 540-2} 57-4 538-8} 57-2 542-4| 56-8 535-6 538-0 535-8 534-9 534-6 534-1 533-3 532-7 530-6 525-6 523-7 521-2 524-7 527-0 536-2 536-5 539-4 543-1 547-4 550-4 550-3 549-3 544-5 546-5 544-4 540-5 542-6 542-4 540-3 536-0 536-5 535-6 534-1 530-6 522.7 523-4 523-7 525-1 537-4 528-4 565-5 547-1 560-7 545-6 544-5 543-4 542-0 540-1 10-09 | 538-6 | Observed 2™ after the Declination, s—0:000140. BALANCE. Magnet untouched, April 24—May 84. | 537-1 | 2 | 571-1) Mic.Div.} ° 543-8| 56-8 539-5| 57-4 541-9] 57-9 541-7| 58-0 539-0) 57-7 534-9| 57-3 526:5| 56-7 517-5| 56-0 521-3) 55,3 | 529-7| 54-4 537-5| 52-4 535-3} 51-5 534-5} 50-5 531-2) 49-7 531-6) 49-2 533-2 534-1 536-4 534-9 5325 533°5 537-1 537-2 537-5 543-2 551-4 549-1 541-8 540-8 533-5 528-9 531-9 523-5 523-5 521-4 526-7 | 534.3 537-0 539-6 540-0 | | 542-8 | | 530-6 | | 525-9 | 521-5 | 537-2 | | 535-1 | | 556-2 593-5 | 572-9 555.4 545-6 | 534-5| 53-4 |) Observer’s Initial. | HR SSUCorr rr eetasse see eeed PERS bd od Ed ot Ey i ot = Observed 3™ after the Declination, =0'000010. + Extra Observations made. April 234 105244 10h, Term-Day Observations made. Hovurty OBSERATIONS OF MAGNETOMETERS, APRIL 24—30, 1845. 23 BIFILAR. BALANCE. Gottingen BIrILaR. | BALANCE. Mean Time || Decuina- . of Declina- TION. Cor- \Thermo-|| Cor- |Thermo- rected. | meter. || rected. | meter. |) Gottingen Mean Time | DECLINA- of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- tion Obs. rected. | meter. || rected. | meter. Observer’s Tnitial. - Observer's Initial. © it Se. Div. Mic. Div. ° 25 09-82|| 540-9 6 || 529-9] 52-4 09-05 || 536-6 H 532-7} 51-8 10-06 | 535-9 : 535-6} 51-2 10-31 || 535-8 “ 539-8} 50-6 10-43 || 534-4 D 540-6} 50-2 09-46 || 531-3 ‘ 543-0| 49-7 10-53 | 531-9 . 539-8} 49-3 12-25 || 534-1 ‘7 || 513-1 06-46 || 534-4 ‘ 516-2 07-54 || 525-7 Hi 514-2 13-22 || 518-0 . 523-2 15-34 || 508-9 D 531-8 19-37 || 526-3 : 554-9 24-12 |) 524-8 : 566-5 24-80 || 536-6 E 567-3 21-86 || 535-8 : 573-7 19-62 || 547-1 ; 585-7 08-85 || 546-5 : 605-4 08-92 || 548-0 . 592-2 09-42 || 543-3 . 571-5 10-50 || 540.2 . 570-4 06-93 || 544-3 : 545-7 10-16 || 553-1 o 517-7 09-62 || 536-4 . 498-0 ° | Se. Diy. || 520-4 510-7 oO = scoooeooscscosesoscooscoooSoSoSooSooSos SescoocosconSOasSCCSo# 10-38 || 537-3 . 504-1 11-41} 533-9 : 513-5 14-04) 535-1 ‘ 509.2 10-80 || 535-0 . 516-4 09-77 || 535-9 3: 521-5 08-01 || 535-6 : 527-8 08-97 | 531-9 . 529-4 07-07 || 529-8 . 530-7 07-60 || 525-6 . 534-1 09-42 || 517-4 ‘ 529-1 12-51} 513-8 : 525-8 16-57 | 519-0 : 526-7 21-34 )}) 521-1 3: 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 -L | 531-7 10-54 || 541-0 . 524-0 10-56 || 539-3) 55-3 || 523-7 SSE eh ed tt ft fd dt td comhnmndddwddady | eooowoooocecoeococoocooocoooooosco 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 y | 59-73 || 529-5) 52-3 |) 265-5 59-37) 545-4) 52-2 || 426.3 01-01 | 535-4} 52-1 || 483-4 57-53 || 529-0] 52-0 || 465-8 21-32 || 487-6} 51-9 || 231-3 05-49 || 524-8} 51-7 |) 359-2 02-50 | 523-6) 51-6 || 476-3 04-19!) 528-1} 51-5 || 504-2] 51-3 Sant n dda eee So clatalalabalabcicicicbcickchs lac cialaialaialanl oeooooecococeocscooose PWHHTTtthwessescs DeciinaTion. Magnet untouched, April 24—May 84. Birizar. Observed 2™ after the Declination,s=0-000140. BaLance. Observed 3™ after the Declination, s<=0:000010. + Extra Observations made. 24 Hovurty OBsERVATIONS OF MAGNETOMETERS, Apri 30—May 5, 1845. Gittingen | | Birman. Bazance. || "% J] Gottingen BirizaR. Barance. |& a Mean Time | DEcLINa- | £5] Mean Time |) Drcrina- Ea of Declina- || TION. Cor- |/Thermo-| Cor- |Thermo-) %°=] of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| $°E | tion Obs. | | rected. | meter. | rected. | meter. S “I tion Obs. | rected. | meter. |} rected. | meter. So a) ae a ee | Se.Div.| © _ ||Mic. Diy. > a: Yh | oer || Se. Div. e —||Mic.Div.} °° 30 5 0 || 25 12-31] 536-7| 54-7 || 531-7) 55-4 || B 213 0 || 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 710" 11-01 || 552-2| 55-2 || 534-6] 55-8 || W 15 0 || 10-36 | 533-9} 52-4 | 529-4] 51-8 | W s o| 13-50]! 551-5] 55-3 || 529-8| 55-8 || W 16 0} 09-87 | 535-4! 52-0 | 529-5) 51-3 || W 9 0] 11-75 || 553-7) 55-3 || 528-7| 55-8 || W L7a0) | 08-70 | 534-6) 51-7 | 530-9) 50-8 || W 10 0 | 10-45 |) 550-6| 55-2 | 529-4) 55-7 | ANY 18 0 | 06-74 | 531-9) 51-3 || 536-8| 50-4 || W i Dee | 03-54 | 552-8| 55-1 || 483-7) 55-4 | H 19 0} 05-05 | 531-3| 50-9 | 541-3] 50-1 || B 12 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 21550: 04-75 | 527-6] 50-5 || 524-8) 49-9 | H 13. Of) 24 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 OF} 24 56-90}) 533-2) 54-7 | 255-5 55-2 || H 23 0 10-78 | 523-7| 50-4 || 520-1} 50-2 || H 15 0+ | 25 09-08 || 507-9] 54-5 || 256-1) 55-0 || H 3. OFT0 13-37 || 520-3) 50-5 || 521-0} 50-4 || B 16 OF 08-52 || 516-1| 54-4 || 153-6| 54-8 || H 1) 15-01 || 524-5} 50-8 || 518-9} 50-8 || H 17 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 0 | 14-37 | 524-9| 54-0 || 442-5) 54.3 || H 3.0 13-90 | 532-2} 51-5 || 526-3] 52-0 || H 19 0} 09-00 || 529-8) 53-9 || 447-0} 54-1 || W 25 Uh 11-91 | 536-5| 51-9 || 528-2) 52-5 || H 20 0O| 09-17 || 532-4] 53-8 || 475-6) 54.0 || W 5 0 | 10-18 || 541-0} 52-3 | 527-5) 53-0 || H 21 0] 15-29 || 522-1) 53-8 || 483-3] 53-9 || B 6 0) 10-43 || 544-4] 52-8 |) 532-3) 53-5 || W 22) 03) 13-83 || 522-2) 53-8 || 491-5| 54.2 || W ie Ca 10-30 || 545-9} 53-3 || 532-8) 54-0 || W 23 0 | 16-90 || 526-8) 53-9 || 500-6) 54-5 || W 8 0] 10-54 || 545-6| 53-7 || 529-3) 54-2 || W L 0-8 18-00 | 530-0} 54-3 || 504-8| 54-8 || W 9: 10 10-77 || 541-6} 53-7 || 525-3) 54-0 || W 1 13 17-63 || 529-9) 54-6 || 519-6| 55-2 || W 10 0 11-08 |} 543-3} 53-6 || 523-2) 53-7 || W 2 0} 18-11} 537-1} 54-7 || 534-7) 55-3 || W it 11-25 || 541-7] 53-2 |) 521-7| 53-1 || H 3 0 | 16-92) 534-5| 54-8 || 549-3) 55-4 || W 12 0 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 0} 11-10|| 542-2] 55-4 || 571-3) 56-3 || W 413 0] 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 ae 09-05 || 550-9) 55-9 || 558-5; 56-5 | H 15 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 17° 0 08-18 || 537-3) 48-8 || 538-5) 48-0 || B 10 0 11-34 || 538-4] 55-4 || 530-9) 55-5 || H 18 10 07-54 || 535-3| 48-3 | 545-1) 47-4 || B 11 0} 11-77 || 537-7| 55-0 || 527-5) 54-9 || B 19550 06-14|) 531-3} 47-9 | 548-4) 47.2 | H 12 -O | 11-84 || 536-3| 54-6 || 526-6] 54-3 || B 20 0 05-96 | 527-5| 47-7 || 548-7| 47-0 | H | yh Ct) 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 22° 0 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 0 10-74 || 533-0| 53-3 || 530-9] 52-7 || B 5B 0) 80 I 14-30] 524-4| 47-5 || 541-9) 47-5 || H 16 0 | 09-86 || 533-0| 52-9 || 533-3] 52-2 || B 1 0] 15-89 | 528-4| 47-7 | 534-3| 48-0 || H Wy dee Oa 09-03 || 533-2] 52-5 || 536-0] 41-8 | B 2 0 15-76 || 535-0| 48-1 || 533-6) 48-6 | H 18 0 07-54 | 531-8) 52-2 | 537-7| 51-3 || B 3 0} 14-77 || 536-8] 48.5 | 535-7| 49-2 || H 19 0 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 0] 12-13 | 543-6] 49.3 || 546-2| 50-0 || H PALE Oe 07-20 || 529-9| 51-7 || 538-0| 51-2 | W 6 0 10-28 | 548-4] 49.9 || 555-5) 50-3 || B 22 0] 09-24 || 528-3) 51-6 | 537-1) 51-4 ) H c(h 09-76 | 550-2) 50.2 | 558-6) 50-4 || B 2310) 10-85 || 526-2) 51-6 | 529-6] 51-6 | H 8 0] 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 SOs 09-80 | 543-8} 50-5 | 553-9) 50-5 || B 10: | 14-57 || 526-7| 52-1 | 521-1) 52:5 | H LOMO)| 11-71} 542-1] 50-3 || 543-1) 50-1 || B 5.20 15-05 | 530-1] 52-5 || 526-1] 53-2 || H ml {9 12-22 | 540-9| 50-0 || 538-2| 49-7 || W + 0 | 14-50 | 534-1] 53-0 | 529-2] 54.0 || H 12 0} 12-08 | 539-2] 49-6 || 537-5| 49-3 || W 4 0 13-22] 540-3] 53-5 || 530-4| 54-6 || H i | 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 0 AY 2 10-94 || 543-8] 54-5 || 533-6] 55-2 | B 14 0 11-46 | 537-6] 49-0 || 540-0| 48-5 || W fia (014 10-01 | 542-7| 54-8 || 532-5] 55-4 || B 15 0 11-27 | 536-6] 48-7 | 542-0) 48.2 || W 8s 0] 09-86 |) 543-1] 54-9 i 529-7| 55:3 || B 16 0 10-51 | 536-7| 48-4 || 544-6 47-9 || W od | 11-03 | 539-9| 54.8 | 525:6| 55-0 || B 17 O 08-97 || 535-9] 48-1 || 548-7| 47-6 || W 10 0| 11-03 || 539-1} 54-5 || 522-8] 54-5 || B 18 0 06-19 | 532-1] 47-9 || 554-7| 47-4 || W Il 0 | 10-63 || 537-7) 54-1 || 522-7] 54-0 || W 197*0 04-55 || 529°7| 47-7 || 552-5| 47-2 || B 12 0 | 10-56!! 536-3! 53-7 || 526-5! 53-4 || W 20 0 04-51 | 527-7! 47-6 | 548-7! 47-2 || B DECLINATION. Magnet untouched, April 24—May 84. BirtLar. Observed 2" after the Declination. k=0:000140. Ba.LaNnce. Observed 3™ after the Declination, k—0:000010. + Extra Observations made. Gottingen Mean Time of Declina- tion Obs. HovurLy OBSERVATIONS OF MAGNETOMETERS, May 5—10, 1845. DECLINA- TION. 25 06-50 10-36 13-72 16-72 17-70 15-52 13-59 11-79 10-50 10-45 11-42 10-67 10.47 08-97 10-07 11-21 coooooscoscoooooooos 11-55 10-56 11-03 10-95 10-63 08-21 06-50 04-68 06-83 10-01 13-59 17-02 18-82 18-70 15-85 14-03 11-98 10°54 10-67 10-83 11-37 11-55 10-74 11-00 Sooo aon oeo Sc: oS So Seo ooo oo So) 11-17 10-74 10-90 10-27 09-42 07-00 05-83 05-22 06-37 09-29 13-25 16-38 17-56 17-58 17-10 16-36 ocoocoooococecoeoce cos BIFILAR. | BALANCE. Cor- rected. Se. Div. 525-1 522-9 519-5 521-1 528-5 537-4 542-6 545-0 544-1 545-5 548-1 544-4 546-0 544-4 541-2 540-3 540-1 538-5 539-7 539.2 539-9 535-8 533-0 528.7 520-7 519-4 520-4 520-0 528-9 533.3 537-8 551-4 541-4 549-2 544-1 545.9 546-3 545-5 543-4 541-0 540-6 539-9 539-6 539-2 538-6 535-4 533-1 528-8 524.5 5218 522.5 525-8 531-3 538-2 543-7 543-6 | Thermo- meter. Cor- rected. Mie. Div. | 539-1 | 546-7 | 541-9 538-5 531-2 538-2 538-6 544-8 548-3 547-2 542-9 542.7 540-1 536-0 529-1 531-0 532-1 536-7 536-8 538-6 542-4 543-6 549-4 549-1 541-6 538-5 531-4 531-2 533-7 536-6 545-2 549-8 561-0 553-6 554-2 549-6 543-8 544-5 546-2 547-8 550-0 551-0 551-6 554-6 557-4 561-2 560-6 561-5 557-9 546-1 539-5 530-5 526-0 528-5 531-5 548-1 ‘Thermo- meter. 47-3 47-4 47-7 48-0 48-5 49-0 49-5 47-5 Observer’s Initial, SSSSeSsSeSett tebe dh weds eee eeseseseeseur Seer rene mndddddeomomo mom Gottingen Mean Time of Declina- tion Obs. | eooooooos eceoocoooocoocoococeooooooooocooococoso eceoooooocococooocoocooooocececo i DECLINA- TION. 25 10-70 10:13 10-51 11.07 10.94 10-77 | 10-43 11-10 08-72 09-02 09-05 06-98 05-56 05:55 06-36 09-12 12-78 16-19 16-72 16-57 15-32 13-67 12-96 11:77 11-46 11-21 11-64 10-90 11-12 10-70 BIFiLaR. BALANCE, Cor- |Thermo-|| Cor- |Thermo-| rected. | meter. || rected. | meter. | | | Se. Div. ° Mie Div.| °° 549-6| 47-4 | 554-0} 48-2 | 549-9} 47-9 || 958-6 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) 44.8 525-2] 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 | 540-9| 47.7 549-8) 47.6 || 543-7| 48-0 551-0| 47-8 | 543-1| 48.2 549-9| 47-9 | 540-4) 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) 47-3 542-1| 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) 49-5 550-1} 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 Sr Observer’s Initial. Stn dddeddededeee mms seas aguwt oe | BIriuar. DECLINATION. MAG. AND MET. oBs. 1845. Observed 2™ after the Declination, k—0-000140. BALANCE. Torsion removed,—May 84 33», — 4°. Effect of + 10° of torsion = — 0°84. Observed 3™ after the Declination, =0-000010. 6 Hovurty OBSERVATIONS OF MAGNETOMETERS, May 11—16, 1845. BIFILAR. | BALANCE. Gottingen BIFILAR. BALANCE. Mean Time || Drecirna- ] of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- tion Obs. rected. | meter. || rected. | meter. Gottingen | Mean Time || DECLINA- of Declina- TION. Cor- |Thermo-| Cor- |Thermo- rected. | meter. | rected. | meter. Observer’s Observer’s Initial. Se. Div. . Mice. Diy. 526-3; 48-9 || 518.7 523-8| 48-8 || 512-6 524-9 4 506-2 523-6 3 503-8 529-5 D 504-1 536-6 b 503-9 557-1 : 505-9 549-5 : 521-0 548-5 3 527-8 553-5 4 549.8 547-4 “9 | 545-8 551-3 529-0 545-4 r 521-1 550-2 H 514-4 550-2 ¢ 511-1 550-4 : 492.9 oC || Sc. Div. q Mio. Div. | 25 04-31 52:3 | 482-9 06-59 | 535- 52:0 | 495-1 08-75 : 51-7 | 497-4 09-08 | 538. 51-5 | 499-6 07:40 | 535-9| 51-2 || 505-2 08-18 : 50-9 || 500-9 06-19 35- 50-8 || 522-5 05-45 || 535. 50:7 || 508-9 06-86 31- 50-7 || 497-6 08-82 : 50-6 || 477-4 14-31 31- 50-7 || 483-9 17-22 530. 51-0 || 482.7 18-72 || 531- s 483-0 18-16 : . 493-0 17:51 37° : 498-6 15-24 : 3 509-0 14°46 . 3 518-4 13-43 54: 3: 516-2 12-08 ‘ 3: 510-3 12-40 : : 508-1 12.29 || 553: : 505-5 11-66 50- 3. 503-6 11-48 5. 3. 503-5 10.94 ecocesceococescocoeocs > 549-7 5 |] 461-1 539-9 -3 || 465-0 536-5 2 || 483-1 537-7 0 || 495.6 538-3 “8 || 505-1 | 536-9 .7 || 510-8 535-6 5 || 507-6 535-4 -4 |) 500.3 531.0 3 || 497-6 528.4 3 || 491-4 519-5 .7 || 489.7 519-9 3 || 490-5 526-1 0 || 492.6 529-3 9 || 502-5 541-7 8 || 501-2 546-9 ‘8 || 519.7 | 554-7 7 || 538-1 558-3 4 || 563-8 553-7 -1 || 584-8 553-8 6 || 570-8 | 544.3 6 || 556-5 | 540-5 +5 || 526-3 538.7 3 || 516-2 | 539-1 514.8 444 dabboounmmmmns | 10-77 10-48 10-18 10-03 08-80 07-85 07-34 || 5: “ i 07-18 . : 518.4 08-29 || 525. “1 || 517-6 10-11 : A 508-2 12-48 : . 494.6 15.39 . : 484.7 18-67 . . 475-4 19-89 : : 485.6 19.39 : 498.0 16-21 : 507-7 14-82 : 509-6 10-92 3. 7 516-2 12-11 . 3: 518-5 12-65 51-4 . 516-0 12.62 : 3. 511-8 08-66 : : 511-2 08-85 39. 53- 506-0 07-24 | 534. . 502-1 eceseocoeooocooooocoocosocoscooco 540-9 513-0 11-27 || 539.7 -9 || 511-0 10-11 || 537-0 ‘7 | 509-6 09-89 || 538-3 -4 | 510-4 08-48 || 537-0 -2 | 519-3 07-64 || 538-0 -0 | 524.4 04-59 |) 540-1 0 | 526-4 05-35 || 539-1 -9 | 520-4 05-82 | 534-0 -9 | 510-7 06-30 |) 521-3 0 |) 503-5 13-86 || 522-3 2 || 499-5 15-20 || 530-9 6 | 495-3 17-06 || 528-7 -4 | 497-9| 58-5 20-65 || 538-8 2 || 492-9] 59-5 21-51 || 531-7} 59-0 || 494-3] 60-3 16-97 | 535-3! 59-8 | 501-8] 61-1 0 0 0 0 0 0 0 0] 0 0 0 0 0 || 0 || 0 0 0 0 0 || 0 0 0 0 0 09-30 “§ 2. 499.2 07-71 | “ ‘0 | 491-6 11-10 39- . 449-8 06-73 . : 450-2 07-15 : . 474-5 06-48 | : 5 500-1 06-66 . 516-4 07-35 49-0 | 515-5 MRHeoseyuy sent httesaeesgesesesessnnerere THSaSsSeSeSstt eer Sstesessesussheeeae THSssesser trot ttdtowsss eceocooocococoeocecoeoce cooocococo DECLINATION. Magnet untouched, May 84—June 184. 3IFILAR. Observed 2™ after the Declination, —0:000140. BALANCE. Observed 3™ after the Declination, s=0:000010, + Extra Observations made. a Hourty OBSERVATIONS OF MAGNETOMETERS, May 16—21, 1845. 27 Gittingen BIFILAR. BALANCE. % _:| Gottingen Brrivar. BALANCE. % 2 Mean Time || Decurna- eS] Mean Time || Decuina- |——_—_—||____,—_—__] 2.3 of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| % ‘= | of Declina- TION. Cor- Thermo-|| Cor- |Thermo-|| °E tion Obs. rected. | meter. || rected. | meter. ||" tion Obs. rected. | meter. || rected. | meter. | 5 ~ m. p bs Se. Div. ¢ Mic. Diy. 3 h. e Z Se. Div. © Mie. Div. eS Ot|| 25 22.03|| 578-4 60-7 || 495-7| 62-0 13 25 11-27) 539-3} 49-8 || 529-6) 49-5 | B ot 15.47 || 528-6| 61-2 || 565-9} 62-5 14 11-30 || 537-6| 49-6 || 530-5] 49-2 || B Ot! 13-49 || 543-3} 61-5 || 567-5| 62-7 15 13-02 || 538-5) 49-4 || 527-3) 49-0 | B 0 11-84|| 548-2} 61-7 || 545-6] 62-7 16 10-65 || 538-1} 49-2 || 523-5| 48-8 || B 0 11-79 || 548-5] 61-7 || 529-7| 62-4 17 08-29 || 537-7| 49-0 || 532.2) 48-5 || B 0 10-41 || 545-9] 61-3 || 518-5] 61-7 18 07:00 |] 535-0) 48-8 || 537-7! 48.4 || B 0 11-39 |) 543-9) 60-9 || 512-5} 61-0 19 05-69 || 531-7| 48-7 || 543-4) 48-4 || H 0 11-41 | 541-2) 60-5 || 512-5} 60-4 20 05-63 || 526-2} 48-6 || 547-7) 48-3 || H 06-64 || 521-3| 48-5 || 550-9} 48-3 08-66 || 520-4| 48-4 || 539-5] 48-4 12-82 || 525-4) 48-5 || 527-3) 48-7 16-48 || 529-2| 48-7 || 520-6] 49-0 19-35 || 536-1) 49-0 || 518-9} 49.4 21-29 |) 542.3} 49.4 || 526-4| 49.7 21-39 |) 543-7| 49-8 || 532-5] 50-3 17-67 || 545-7) 50-2 || 536-6| 50-8 15-12 |} 545-6} 50-7 || 541-8] 51-5 12-98 || 552-0} 51-1 || 544-5] 51-9 11-81 |) 554-3) 51-5 || 536-4] 52-1 11-35 || 551-0| 51-7 || 529-6] 52-1 11-68 || 552-5} 51-6 || 527.4) 52-0 11-66 |) 552-4] 51-4 |) 519-6] 51-6 10-87 || 545-3) 51-2 || 523-7) 51-3 10-68 || 549-8} 50-9 || 516-3] 50-9 25 11-00|| 541-4| 60-0 | 511-9} 59-8 10-80 || 539-1) 59-5 || 516-8| 59-3 | 10-87 | 536-8) 59-1 || 520-6} 58-8 } 10-60 || 537-2| 58-7 | 522-2) 58-3 09-73 || 535-1} 58-3 | 530-0| 57-9 08-92 | 533-9) 57-9 || 532-8) 57-5 08-70|| 530-5) 57-6 || 536-4] 57-1 08-18 || 526-3} 57-3 | 535.3| 56-8 08-99 || 522-4} 57-1 || 529-0} 56-5 09-82 || 521-6) 56-9 || 520-4| 56-5 11-24}} 523-0] 56-9 | 503-7| 56-7 13-93] 525-8| 56-9 || 491-8] 57-0 16.39 || 533-7] 57-0 || 495.3) 57-3 | 16-97 || 541-8) 57-3 | 501-8) 57-7 16-75 || 548-4] 57-7 || 507-3| 58-2 15-58 || 565-1| 57-9 || 505.0} 58-5 13-19 || 552-7) 58-1 || 517-8| 58-7 12-46 || 553-1| 58-3 || 522.5] 58-7 11-93 || 552-5| 58-4 || 526-8| 58-7 | 12-33 || 551-8] 58-4 || 524-7} 58-7 09-08 || 546-5| 58-4 || 529.2) 58-3 10-50 |) 541-8] 58-0 || 527-2) 57-8 BWM Se see see sess See See Se mm nmnh a | ececoooocooscoocoeooosooscocoocoocooocoosoccs 25 07-67 || 535-7| 50-6 || 495-6 07-67 || 534-4) 50-4 |) 482-3) 50-3 | 05-32 || 536-8) 50-1 |) 490-4! 50-0 | 06-46 || 538-1] 49-9 || 500-9| 49-6 08-26 || 524-1] 49-6 || 516-5| 49-3 09-69 || 530-2} 49-4 |) 511-5) 49-1 ocooooooooocoocececoeceoceocoeo uo o a don Mdndit dds sees se Serb e rw eee 0 0 0 0 0 0 11-17} 540-2} 57-6 || 524-0} 57-1 19 O 05-97 || 535-8} 49-2 || 512-5) 48-9 05-77 || 533-5) 57-1 || 532-1) 56-5 20 0 06-29 || 528-6} 49-0 || 524-3| 48-7 21 0 06-83 || 522-2} 48-8 |) 522.8) 48.7 Ot}) 25-02-70)) 540-9} 52-3 || 445.1| 52-0 22 0 09-37 || 521-1| 48-8 || 517-1| 48-7 ll 03-60 || 522-7) 52-1 || 372-8] 51-7 Dap 10 12-98 || 526.4] 48-8 || 516-1] 49-0 ot 09-32 || 533-4) 51-9 || 403.5) 51-5 0 0 16-12 || 529-5| 49-0 || 519-0} 49-4 || ot 20-62 || 508-3| 51-6 || 363-7} 51-2 1 0 18-23 || 529-5| 49-5 || 527-5| 50-0 ot 10-11 | 526-7| 51-3 || 379-0} 50-7 2 0 17-73 || 536-0} 50-1 || 533-8) 50-8 Ot 08-14) 527-7] 51-0 || 451-1) 50-4 3 0 17-29 || 542-7| 50.8 || 535-4] 51-7 8 08-39 || 522-6) 50-8 || 495.7} 50-1 4 0 16-35 || 545-6) 51-5 || 542-3] 52.4 0 08-19 || 525-6} 50-7 || 505-1] 50-0 5 0 13-86 || 552-6) 52-1 545-1) 53-1 0 11-37 || 529-7} 50-6 || 505-7| 50-0 6 0 12-18 || 550-8| 52-7 || 547-4| 53-8 | W 0 11-69 | 530-7) 50-5 || 497.9| 50-0 7 O 10-09 || 551-9) 53-1 || 548-2} 54-1 | W 0 15-22) 521-8} 50-4 || 496-7} 50-1 8 0 10-75 || 550-5) 53-3 || 539-4} 54-1 | W 0 21-01 |) 524-2) 50-4 || 498.4] 50-4 9 0 11-25 || 546-6) 53-2 || 530-6) 53-9 | W 0 20-99 || 522-5) 50-5 || 506-4| 50-4 10 0 08-85 || 548-5] 53-0 |) 518-1) 53-5 || W 0 19-81 || 534-7) 50-5 || 518.2| 50-5 11 0 09-96 || 541-4| 52-7 || 509-5} 53-1 || H 0 17-46 || 541-0} 50-6 || 517-0| 50-7 12 0 08-12 || 540-1} 52-5 || 499-0) 52-7 || H 0 17-56 || 547-3} 50-8 || 528-7| 50-9 0 15-47 || 544-4] 51-0 | 536-5] 51-2 13 O || 25 09-76)| 536-0| 52.2 || 488-4) 52-3 || H 0 14-30} 547-5) 51-0 || 537-3) 51-3 14 0 |) 06-73 || 530-6| 51-9 || 486-4} 51-9 || H 0 13-02] 549-0] 51-0 || 537-6} 51-2 15 0 10-30 || 536-6| 51-6 || 484-7| 51-5 | H 0 11-74|| 551-1) 51-0 || 537-2} 50-9 16 0 07-37 || 537-2) 51-3 || 497-5| 51-1 || H 0 11-51 |] 543-5) 50-8 || 537-2] 50-6 17 0 06-56 || 535-6) 51-0 || 513-6| 50-6 | H 0 10-09 | 541-9| 50-5 || 537-6| 50-3 18 0 04-55 || 534-9) 50-7 || 519-6) 50-2 | H 0 12-11 || 541-4) 50-3 | 533-1] 50-0 19 0 03-57 || 534-8| 50-4 || 522-8) 49.9 | W 0 12-38 || 542-4} 50-0 || 531-2] 49-7 20 0 02-62 || 524-5 50-1 || 523-7| 49-6 || W DECLINATION. Magnet untouched, May 8'—June 182. Birizar. Observed 2™ after the Declination, s=0-:000140. BALANCE. Observed 3™ after the Declination, s=0-000010. + 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. 8 Hourty OBSERVATIONS OF MAGNETOMETERS, May 21—27, 1845. Gottingen | BIrILAR. BALANCE. % _ | Gottingen BIFILAR. BALANCE. . be Mean Time || DecLina- | 2 -£| Mean Time || Decuina- ] Fae) of Declina- | TION, Cor- /Thermo-| Cor- |/Thermo-|| 3 °Z | of Declina- TION. Cor- |Thermo-| Cor- |Thermo-|| 3 °2 tion Obs. | rected. | meter. || rected. | meter. S| tion Obs. rected. | meter. || rected.| meter. || 57 | a jh. Pars], ee. || Se. Div. a Mic. Div.| °° de gh.) any Care, Se. Div. ° Mic. Diy. ° 21 21 5 | 25 05-06) 528-7| 49-9 || 521-6} 49-5 | B | 24 5 O || 25 14-26 543-7} 49-7 | 527-0| 49-9 || B 22 0} 08-36 | 524-8} 49-9 || 521-9 | 49-6 || W 6 0 12-25 || 549-2) 49-8 || 527-7) 50-0 || H 23 0 || 13-16 || 522-8} 49-9 || 513-9} 49-9 || W Tw 11-05 || 552-2) 49-7 || 525-6| 49-9 || W 22 0 0 | 15-71 | 527-8} 50-0 || 505-0| 50-2 || W 8 0 09-66 | 545-1| 49-6 || 530-1) 49-7 || W 7 1 0] 18-75 || 528-8| 50-2 || 507-1 | 50-4 || W Sua0 10-16) 543-7| 49-5 | 529-5) 49-5 | W 2 0 20-69 | 527-8} 50-4 || 516-0) 50-6 || W 10 0 11-48 | 539-3 | 49-3 || 525-0) 49-3 | W 3 0 20-02 || 542-3) 50-7 || 516-0} 51-0 || W ie 0) 11-88 || 539-7| 49-1 | 521-1) 49-2 | H 4 0) 17-86 || 555-3} 51-0 || 527-4) 51-5 | W 12 0 11-77 | 538-6| 49-0 520-0} 49-0 | H 5 0 16-13 || 557-6] 51-5 || 548-8) 52.1 || W | 6 0 12-25 || 558-0| 51-9 || 572-5} 52-5 | W | 25 13 0 || 25 10-67|| 541-7] 48.6 | 522-1] 48-5 | B 7 0; 11-49 556-5 } 52-2 || 571-4| 52-7 || H 14 0 10-28 || 541-6} 48-4 || 522-0) 48-2 | B 8 0 10-98 || 554-8] 52-2 || 561-5| 52-7 || H 15 0 10-01 | 540-8} 48-2 | 523-1) 48-0 | B 9 0} 09-96 || 549-8| 52-1 || 549-3) 52-5 || H 16 0 09-73 || 541-5| 48-0 | 527-2| 47-8 || B 10 O 02-99 || 538-6] 52-0 || 534-8) 52-1 || H 17 0 08-82 || 540-8] 47-8 } 532-5) 47-6 || B 110 10-43 | 540-0} 51-8 | 522-:0| 51-7 || B 18 0 07-81 || 539-4| 47.7 || 532-3) 47-3 | B 12 0 10-97 || 542-7) 51-5 || 518-7) 51-3 B 19° 0 07:76 || 538-7| 47-5 | 531-5) 47-2 | H 20 O 07-57 || 535-4] 47-4 || 534.2] 47-2 | H 13 0 |) 25 11-24]} 541-5] 51-2 || 521-0} 50-9 || B 21 0 07-22 || 529-8) 47-4 || 526-9} 47-3 | W 14 0| 11-59 || 541-0} 50-9 | 523-9) 50-5 B 22) .0 07-67 || 524-3] 47-4 | 518-9| 47-4 | W 15 0 10-81 |} 539-6| 50:6 || 523-2] 50-1 || B 23 0 10-23 || 524-8| 47-4 || 516-6) 47-4 | H 16 0 10-78 || 537-0| 50-3 || 523-9| 49-8 | B | 26 0 0 14-73 || 528-4| 47-4 | 514-8) 47-4 | H 16 09-56 || 538-1} 50-0 | 520-2} 49-5 || B 1 0 15-14 | 532-7| 47-4 || 513-8) 47-4 | H 18 10. 06-53 || 532-6| 49-7 || 521-7| 49-2 || H 2 0 15-41) 536-9} 47-4 || 517-9) 47-5 || H 19 0 07-27 || 531-2) 49-4 || 518-6| 49-0 || H 3 0 15-07 || 539-6| 47-5 || 521-9) 47-6 | H 20 0} 05-52 || 530-0| 49-2 || 515-6| 48-8 || W 4 0 14-26 || 543-4| 47-5 || 517-5) 47-6 | H 21 0 05-70 | 525-6) 49-1 || 517-3) 48-7 || H 5 0 12-95 || 543-6! 47-5 | 531-6) 47-6 | H 22 0] 10-07 || 523-6| 49-0 | 506-8| 48-7 || H 6 0 12:28 || 546-1) 47-6 || 532-8) 47-6 | B 23 0 14-13 || 528-2) 49.0 || 497-3| 49-1 || H Ciao) 11-93 || 546-4] 47-5 | 533-7) 47-5 || B 23 040 17-76 || 531-9] 49.2 || 494-7} 49-6 || H 8 0 11-79 || 546-6| 47-4 || 533-1] 47-4 || B 120 | 17-96 || 537-1| 49.6 || 489-0| 50-0 || H 9 0 11-41 || 545-6] 47-3 || 531-7| 47-3 || B 2 0 17-76 || 541-0} 50-0 || 498-9| 50-5 || H 10 0 10-74 || 544-3| 47-2 | 530-0} 47-2 | B 3.4 16-89 || 545-8) 50-5 || 512-3) 51-1 H ll 0 10-48 || 542-8| 47-1 || 528-4) 47-1 || W 4 0 15-38 || 544-2] 51-9 || 523-0) 51-5 || H 12 0 10-30 |) 542°5| 47-0 || 526-8} 47-0 | W 5 0 12-45 || 549-9] 51-1 || 530-0| 51-7 || B 6 0) 11-41 | 549-8] 51-3 | 534.4) 51-7 | B 13 0 || 25 10-48 | 543-4] 47-0 | 527-5] 47-0 | W G10") 10-74 || 551-2] 51-3 || 531-0| 51-6 || B 14 0 10-60 || 542-8] 46.9 || 527-2} 46-9 | W 8 0} 10-60 || 548-5] 51-2 | 516-9| 51-4 || B 15 0 10-54 || 543-1] 46-9 | 528-6] 46-9 || W 9 0 10-47 || 547-8] 51-1 || 523-3) 51-2 |) B 16 0 09-96 || 542-2} 46.8 || 529-8) 46.8 | W 10 0 11-07 || 548-8| 50-9 || 517-4) 50-9 || W 70) 09-32) 541-S| 46.8 || 531-5/ 46-8 | W 102 <0 | 10-00 | 547-1] 50-7 || 513-6} 50-6 || W 18 0 08-26 | 541-6} 46-7 | 534-6] 46-7 | W 12 0 | 11-41 || 543-3) 50-5 || 513-9) 50-3 || W 19) 40, 07:72 || 541-3) 46-7 | 534-9] 46-7 || B | | 20 0 07-31 || 537-6) 46-7 | 533-8] 46-7 || B 13° 0 || 25 11-34]] 542-3] 50-3 || 515.4] 50-0 || W 21 0 07-82) 532-3) 46-7 | 528-5] 46-7 | H 14 0} 10-92 || 539-5| 50-0 || 519-5) 49-7 || W 22 0 08-38 | 529-2} 46-7 || 529-6| 46-9 | H | 15 0} 10-74 || 538-5] 49-8 || 522-5] 49-5 || W 23 0 11-49 || 526-6| 46-9 | 524-5} 47-2 | H 16> 1g | 09-89 || 538-8} 49-6 | 526-1} 49-3 | W127 0 0 13-69 || 530-6} 47-1 | 512-5] 47-5 || B 17 0 | 08-53 || 539-2] 49.3 || 528-4| 49-0 || W 1A 14-84 |} 533-1] 47.3 || 503-9] 47-7 || H 18 0} 07-64|| 537-1| 49-1 || 529-9| 48-8 || W ZeaO, 15-94 | 536-3) 47-6 512-8| 48:0 | B J 19 0 | 06-03 || 533-4) 48-9 || 528.9) 48-5 || B 3 0 16-32 || 540-7} 47.8 | 520-1] 48-3 || H 20 0 04-02 || 520-8| 48.7 || 536-0| 48-4 || B 4 0 15-45 || 543-1] 48.0 | 531-2} 48.5 || H 21 0} 11-30 | 511-3] 48-6 || 532-0) 48-4 || H 5 0 14:50 | 545-0) 48-1 || 531-7) 48-5 || B 22 0] 14-46 | 514-8] 48-5 |) 528-0| 48-4 || H 6 0 12-72 || 549-7| 48.3 | 531-5| 48-6 | W 23 0 14-96 | 522-4] 48-5 || 521-6| 48-4 || B iQ 11-28 | 550-7} 48-3 | 535-1] 48-7 | W 24 0 0 17-17 || 530-1] 48-6 || 505-5) 48-6 | EE 8 0 10-70 | 549-6| 48.3 | 537-2| 48-6 || W eo] 18-40 || 532-1] 48-8 || 498.5] 48-9 || H 9 O 10-67 | 547-5| 48.2 | 532-2] 48-4 | W 2 0 | 17-74 || 538-3] 48-9 | 498-2] 49-2 || H 10 0 11:05 | 544-8} 48-0 || 528-3) 48-2 | W 3 0] 16-15 || 534-6] 49.0 | 507-6| 49-5 | H 11:0 10-85 | 543-7| 47-9 | 526-2] 48-0 || H | 4 0) 15-41 || 537-41 49.4 | 525.1! 49.8 || B 12540 10-56 | 542-9! 47.8 || 523-9] 47-8 || H | DECLINATION. Magnet untouched, May 84—June 184, Birizar. Observed 2™ after the Declination, s=0:000140. BaLance. Observed 3™ after the Declination, s—0:'000010. Hourty OBSERVATIONS OF MAGNETOMETERS, May 27—June 2, 1845. 29 Géttingen | Brrmmar. BALANCE, < _: | Géttingen | | Brrmar. BALANCE. ls Mean Time || DEcLiINna- || - ; 2.2] Mean Time || DecriNna- | ae of Declina- TION. Cor- |Phermo-|| Cor- |Thermo-| ‘Z| of Declina- | TION. | Cor- |Thermo-|| Cor- |Thermo-)| 2° tion Obs. rected. | meter. || rected. meter. 5 a tion Obs. | | rected. | meter. || rected. | meter. || 5 i ah. mm. (oti (Gane = |Mic.Div.| © | 7) eal ene ones e \[aiie. Div. 2 | 2713 0 || 25 10-16|| 541-6| 47-6 | 524-0) 47-6 || H 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 22 0 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 10 i 10-33 | 523-4) 49-2 || 497-9| 49-7 | H 16 0 09-47 || 542-8| 47-0 || 526-6| 47-0 | 0 0} 13-30 || 529-4) 49-8 || 500-6] 50-5 | H 17 0 08-52 || 542-9| 46-9 | 530-3) 46-8 | H 10 16-25 || 537-4| 50-4 |) 499-4] 51-3 || H 18 0 07-40 || 542:4| 46-7 | 528-4 | 46-6 | H 2 0} 18-10 || 542-9] 51-2 || 496.2) 52-2 || H 29) .0 | 06-98 | 542-8| 46-6 || 527-4) 46-4 | W 3 Of} 18-00 || 540-6| 52-0 || 496-8| 53-0 || H 20 0 06-91 || 537-6| 46-5 || 531-5) 46-3 || W 4 0 16-08 | 542-3) 52-7 || 502-3] 54-0 || H 21 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 22 0| 08-68 | 530-1) 46-6 || 525-9) 46-7 || W 6 0 13-07 | 554-1) 53-7 || 511-3] 54-8 || W 23 0 | 11-71 || 528-9| 46-8 || 518-4) 47-1 | W 7 0 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 8.40. 07-60 || 557-2| 54-0 || 537-7| 54-8 || W 1S0) | 14-98 | 536-6) 47-7 || 504-5| 48-3 || W 9"10 07-62 |) 547-6, 54-0 || 540.2} 54-6 || Ww 2 0 15-29 || 539-0 48-3 || 513-7) 49-0 | W 10 0} 10-36 || 542-0) 53-8 || 530.4| 54-2 || W a0 15-09 || 541-8) 48-9 || 516-2) 49-7 | W 11 O| 07-13 || 534-3| 53-5 || 522-4) 54-0 B 4 0 14-06 || 545-4| 49-6 | 522°2) 50-3 | WwW 12 0O| 03-70 || 530-8) 53-3 || 508-4) 53-7 B 5 0 12-51|| 548-3| 50-2 || 524-2) 51-0 || W | | | 5) 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 7 09-35 || 551-7| 51-2 || 528-6) 51-7 || H 14 OO} 05-45 || 536-6| 52-8 || 461-6] 53-3 || D 8 0 10-09} 551-5| 51-3 || 525-6) 51-7 || H 15 0 02-82 || 535-7| 52-6 I 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 10 0 10-53 || 548-3) 51-0 ||. 517-9} 51-1 || H 17 0] 10-53 || 530-3) 52-2 || 472-8] 52-3 D S50 | 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 O 04-14 || 540-9) 51-9 || 479.9} 52.0 || H 20 0 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 21 0 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 15 0 10-20) 541-5) 49-4 || 511-7) 49-0 | B 23" 0 18-14 || 527-7| 52-2 || 471-6) 52-9 || W 16 0 09-67 || 541-6) 49-1 | 514-8] 48-6 | B 0 0 20-09 || 517-7} 52-7 || 481-1) 53-6 || W 17 0 07-94 || 542.1] 48-8 || 519-6] 48-3 || B 1 0 24-55 || 523-7] 53-2 || 486-3] 54-5 || H 18 0 07-49 || 542-7| 48-5 || 519-8} 48-0 || B 2 0 29-93 || 531-5| 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 0 07-07 || 538-4| 48.0 || 518-5] 47-5 || H 4 0 24-73 || 539-1| 56-1 || 546-1] 57-7 || B 21 0 07-24 || 532-8) 47-9 || 516-7] 47-5 || W 5 0 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 7 0] 11-96 || 539-6| 58-3 || 543-2] 59-5 || D 29 0 0 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) 48-6 || 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 0 10-92 || 544-8) 58-7 || 524.9] 59-7 || W 3 0 17-39 | 541-5| 49-1 || 499-9| 49-7 || H ye) 11-44 547-0 58-3 || 511-9] 59-0 | B 4 0 15-12|| 545-4] 49-8 || 515-1) 50-5 || H 12 0] 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 13 0 | 25 11-64) 541-6| 58-0 505-7] 58-3 || W m0 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 15 0 10-09 | 538-8| 57-6 || 507-6} 57-8 || W 9 0 11-24} 550-1} 51-3 H 514-9} 51-6 || B 16 0 10-23 || 536-9} 57-4 || 509-7] 57-6 || W 10 0 10-21 || 550-5} 51-1 |) 511-3) 51-3 || B Lan 08-79 || 537-2) 57-2 || 515-2} 57-3 || W Et 30 11-14) 544-4] 50-9 || 511-5} 51-0 | W 18 0 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 O || 25 13-56 || 544-8] 50-4 || 497-3} 50-3 | W 21 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) 70. 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 20 0 14-94 | 537-4| 57-7 || 498-0} 58-3 || H i740 04-35 || 540-6| 49-4 || 506-6| 49-1 || W 10. 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°40 15-47 | 543-0} 59-1 || 500-3] 59-9 || B 20 0 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 84—June 184, Birimar, Observed 2™ after the Declination, k=0:000140. BALANCE. Observed 3” after the Declination, k—0:000010. May 304 10'—314 10+. MAG. AND MET. oss. 1845. Term-Day Observations made. 30 Hourty OBSERVATIONS OF MAGNETOMETERS, JuNE 2—6, 1845. Observer’s Géttingen | BIrILaR, BALANCE. le4 Gottingen Brriwar. || BALaNnce. Mean Time || DEcLINA- | 2-2] Mean Time || Decurna- | ~ | a SRE: of Declina- || TION. Cor- {Dhermo-| Cor- Thermo- 25 of Declina- TION. Cor- Thermo-| Cor- |Thermo- tion Obs. | || rected. meter. | rected. | meter. oO tion Obs. rected. meter. rected. | meter. a he oh ee | So. Div. P. || Mie. Div. Q ad. he mm: eee Se. Div: | he || Mic. Diy. . 2 5 0|| 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 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 ION 10-54 | 546-6| 60-1 || 519-9} 60-8 || W 15 0 10-16 || 535-4) 54-6 | 505-9| 54-2 8 0| 10:83 | 545-3} 60-2 || 518-0} 60-9 | Ww 16 0} 11-84 || 538-2) 54-2 }) 512-5) 53-8 9 0| 10-65 || 543-3) 60-2 || 518-6 61-0 || W 170 07-82 || 538:0' 53-9 | 525-0| 53-5 10 0 10:58 | 542-0 | 60-1 || 516-4| 60-6 | W 18 0} 04-71 537-4 | 53:7 | 535-0| 53-2 11 0] 10-03 || 543-8, 59-8 || 508-1 60:0 | H 19 O 05-70 | 535°8 | 53-4 | 536-2) 52-8 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 H 21 0 05-92 || 521-4! 52-9 | 527-4] 52-7 13 0 | 25 10-03 | 540-7} 58-9 || 506-6] 58-9 || H 99.0 12-33 || 524-0! 52.8 || 520-4) 52.7 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 16" 0 11-19) 537-9| 58:0 || 510-4] 57-7 || H 5, 40) 10 15-34 |, 534-0 | 53-0 | 506-0| 53-2 16 0 09-98 || 536-6) 57-6 || 513-2 57-1 || H Ld: 17-93 || 539-6| 53-3 | 507-8) 53-7 17 O 09-35 || 536-3] 57-2 || 518-6] 56-5 | 0 2 0 17-12 || 545-3) 53-7 | 511-4) 54-0 18 0 08-31|| 535-5) 56-8 || 521-5] 56-2 | H Sau 17-49 | 547-0) 54-4 | 512-0) 55-5 19 0} 06-48 || 536-5] 56-5 || 525-0] 56-0 W 4 0 16-35 || 544-1| 55-2 | 516-8] 56-2 20 0 | 07-07 || 532:-4| 56-3 || 523-9) 55-8 W SiG 14-46 || 552-7| 55-8 || 522-9) 56-6 21 5 || 08-45 || 530-1) 56-1 || 520-4) 55-9 B 6 0 13-70 || 550-6) 56-3 | 531-0| 57-0 22 0 09-84|| 529-9| 56-1 || 510-3) 56-3 W 0s] 12-01 || 545-6) 56-6 | 528-7| 57-4 23 0 11-00 || 525-6) 56-3 || 492-0] 56-7 WwW 8 0} 11-68 | 546-7| 56-8 | 522-3) 57-7 3 0 0] 14-01|| 528-4] 56-7 || 485-5] 57-2 || W 9 0 10-67 | 546-6| 57-0 | 514.0/ 57-9 1 0| 17-24 || 536-7| 57-2 || 491-3) 57-8 | AWS 10 0 10-18 || 549-7| 57-2 | 508-1} 58-0 2 2 16-95 || 545-2] 57-7 || 499-1] 58-3 W 1h) 0 09-22 || 544-6) 57-2 | 510-3) 58-0 3 0} 15-98 || 550-7} 58-2 | 507-0) 58-8 WwW 12 0 09-76 || 544-9} 57-3 | 510-8) 58-1 4 0 14-71 || 547-4| 58-7 |) 521-4) 59-3 | Ww | | 5 0 12-73 || 544-2) 59-0 526-2) 59-7 | W 13 0 || 25 09-73) 546-6| 57-3 | 500-8| 58-0 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 7 0} 10-45 543-8| 59-3 || 513-7| 59-8 || H 15 0 09-19 | 543-9) 57-0 | 492-4) 57.2 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 9 0} 10-83 || 543-5] 59-0 || 502-2] 59-5 || 17 0 | 05-65 || 541-8| 56-4 | 501-4} 56-3 10 0} 11-10 || 545-1| 58-7 | 497-2| 58-9 || H 18 0} 05-45 || 539-7| 56-1 || 507-8| 56-0 i} 0.) 11-22) 544-0} 58-4 | 497-9| 58-3 | B 19 O 05-43 || 539-3) 56-0 || 514-2] 55-9 12 0) 11-03 | 543-3| 58-0 || 500-0| 57-7 || B 20 0 05-35 | 535-3] 56-0 || 519-3) 56-1 \| | DINO 05-60 | 527-6) 56-0 | 523-4) 56-4 13. 0 || 25 10-74|| 542-1| 57-6 |) 502-9) 57-1 B 22 0 07-07 || 525-3) 56-2 || 517-9| 56-7 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 15 0} 10-95 || 540-8} 56-6 | 507-2) 55-8 B 6 .0' 76 15-20 || 528-3) 56-8 || 501-1| 57-4 16 0 11-03 || 540-0) 56-1 || 512-2) 55-2 B be 6 17-51 || 530-1) 57-1 | 492-3| 57-8 L7G.) 12-51 || 536-7 | 55-6 | 512-2) 54-6 B 2 0 18-01 || 535-7| 57-4 | 493-6) 58-0 18 0 10-98 || 537-6} 55-2 || 506-4) 54-3 || B Bi {0} 18-74 || 539-3] 57-6 | 495-4) 58-2 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 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 21 0 06-06 || 534-8| 54-7 || 526-9| 54-2 | W 610 12-65 || 552-2| 58-2 | 513-8) 58-8 22 0 09-06 || 534-1) 54-7 || 525-9| 54-4 || H Vie) | 11-27 || 550-3) 58-2 | 515-7| 58-7 23 0 15-25 || 530-7 54-7 || 512-4) 54-7 || H 8 0 10-83 || 552-7| 58-1 | 514-4) 58-5 4 00 20-15 || 534-7| 54-8 || 501-3) 55-2 | H GAO; | 10-27 || 548-6) 58-0 | 513-5) 58-4 I 22-15 || 550-3| 55-0 || 497-4] 55-7 | H 10 O| 10-28 || 551-1) 57-8 | 505-6| 58-2 2' 0 15-12) 535-4 55-4 || 511-1] 56-2 | H Lu! 30 | 10-80 || 545-9| 57-6 | 503-8| 57-8 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 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 6 0 15-31 || 554-4) 56-2 | 580-0| 56.7 | B 14 0 08-46 || 545-9) 56-9 | 504-3) 56-7 a: © 12-35 || 543-5| 56-3 || 578-1] 56-7 || B 15 0 08-03 || 545-0| 56-6 | 506-1| 56-4 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 9 0 12-11 |) 547-8| 56-4 \ 549-5| 56-8 || B L780) 06-39 || 543-2} 56-0 | 515-6} 55-7 10 0} 08-32 || 541-6) 56-2 || 538-2| 56-4 | B 18 0 | 04-42 || 539-3) 55-8 | 519-4) 55-5 11 0} 09-46 || 547-0! 56-0 | 516-6) 56-0 | WwW 19 O 04-37 || 533-8) 55-6 | 525-1] 55-4 12 0) 08-99 || 533-6) 55-6 | 500-7| 55-5 || W 20 0! 04-41 || 530-9| 55-4 | 529-9| 55-3 DECLINATION. Magnet untouched, May 8¢—.June 18". Brrrian. Observed 2™ after the Declination, k=0-000140. BALANCE. Observed 3™ after the Declination, k=0-000010. + Extra Observations made. Initial. JU wend sdssdssuds see seen se seas Hovurty OBSERVATIONS OF MAGNETOMETERS, JUNE 6—12, 1845. 31 Birinar. Barance. ||. | Gottingen BIFILAR. Baance. ||%_. -————{, ——} & -& | Mean Time |} Dectina- |S ||, ac Cor- |Thermo-|| Cor- |Thermo- 28 of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-|| “2 rected. | meter. || rected. | meter. || 5 | tion Obs. rected. rected lnetont ar fab. m. || ° 4. Se. Div. cS Mie. Div. = | d hm. * , Se. Div. © Mic. Diy. 5 621 0 | 25 05-42|| 525-9] 55-4 || 524-5} 55-5 | W]10 5 O || 25 15-58 || 552-3] 60-8 || 481-0] 61-9 || H 22 0 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 7 0 12-01 || 565-4| 61-9 || 506-7] 62-8 || B 7 0 Oj 17-54 || 528-1] 56-2 || 491-6) 56-8 | H 8 Ot 07-05 || 560-1) 62-2 || 536-6} 63-0 || B 1 0 | 19-95 || 537-1| 56-8 || 483-0] 57-7 || H 9 0 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 0 11-61 || 549-8] 62-3 || 522-0] 63-0 || B 3 2 20-33 || 547-3] 58-4 || 485-3| 59-7 || H Li0. 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 0 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 17 0 07-42 || 543-2} 61-0 | 509-S| 61-1 | W 1h 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 0 08-48 || 538-0] 60-7 || 515-2] 60-7 | B | 20 5 09-54 532-1) 60-7 || 513-0| 60-9 | B 813 Of) 25.07-78)|| 539-9) 57-2 479-5| 56-8 || H 21 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 16 0 || 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 17 0} 03-65 || 538-4| 55-6 | 490-1| 55-1 || H a) 15-94 || 533-7| 62-6 || 473-1] 63-5 | H 1s 0 02-66 || 537-2) 55-4 494-6| 55-0 | H 2,0 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 (0 18-10 || 544-2) 65-8 || 525-5| 67-0 | B 22 0 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 7 0 12-48 || 549-2] 67-0 || 533-5) 67-9 || W 9 0 0 16-21 || 528-7| 55-8 | 486-1} 56.2 | W 8 0 11-82 || 548-7} 67-6 || 527-2) 68.3 | W ith 0 20-22 || 533.0) 56-0 | 484-6} 56-5 || W 9 3 10-80 || 546-8| 68-1 || 521-8| 69-5 || W 2 0 21-97 || 538-1| 56-4 | 486-5| 56-8 | W 10 0 10-74 || 543-9| 68-4 | 516-6) 69-5 | W 2 19-86 || 543-3) 56-7 | 493-7) 57-1 | W ll 0 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 me O 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 | H 7/ OY 14-06 || 560-1} 56-8 | 535-3) 57-2 || H 14 0 11-64 || 540-5] 67-2 | 493-7) 67-5 | He 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 9 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 LAO 06-23 || 534-5| 65-7 | 514-7) 65-2 || H Lo 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 12 0 08-85 || 545-1] 56-6 | 503-8| 56.8 | B 19 0 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 215 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 0 18-47 || 516-7| 64-7 || 495-2} 65-3 || W Les0 07-84 || 547-3} 56-1 | 509-6) 56-2 | B 1 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 WwW 19 0 03-95 |) 540-3} 56-0 | 509-5; 56-3 | H 3.0 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 7 0 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 9 0 10-83 || 549-1} 73-0 || 501-4] 74-4 || H 2 0 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 1l 0 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 8’—June 184. Birimar. Observed 2™ after the Declination, k=0:000140. BALANCE. Observed 3™ after the Declination, k=0-000010. + Extra Observations made. 32 Hourty OBSERVATIONS OF MAGNETOMETERS, JUNE 12—18, 1845. BALANCE. Gottingen ' BIFILAR. BALANCE, Mean Time |} DrcLina- = of Declina- TION. Cor- |Thermo-|) Cor- |Thermo-| tion Obs. rected. | meter. || rected. | meter. Mean Time || DEcLINA- |/— aaa of Declina- TION, Cor- |Thermo- tion Obs. | rected. | meter. |) r | Initial. Thermo-| meter. | Observer's | | Se. Diy. Mic. Diy. .<] Mean Time || Dectina- 2S 1 of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°2 | of Declina- TION. Cor- |Thermo-| Cor- /Thermo-| 2° | tion Obs. rected. | meter. || rected. | meter. || S5'~} tion Obs. rected. | meter. || rected. | meter. || 5“ . = en Se. Diy. ° Mic. Div.| ° Cth a |e Se. Diy. ° Mic.Div.| ° 9 21 0 || 25 04-73) 528-4] 59-9 | 498-5) 59-8 || W]12 5 0 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 ‘G40 12-04|| 555-7| 61-1 || 520-9 61.7 | H 70) 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 1 0 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 0 10-45 || 543-0} 60-7 || 501-0| 60-8 || H 3.0 17-51 || 540-6| 64-2 || 465-5] 65-6 || H 11 0 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 6 0 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 7 0 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 15 0 09-47 || 540-8| 56-9 || 493-7| 56-9 || W : 9 0 10-70|| 547-5| 67-2 || 480-3] 68-0 || B 16 0 08-38 || 541-0| 56-7 || 495-7| 56-7 || W : 10 0 11-64 || 543-8) 67-0 || 470-5| 67-6 || B 17 0 07-00 || 541-1] 56-6 || 499-5] 56-5 || W 11 0 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 0 04-95 || 536-3} 56-2 || 504-3) 56-1 || B 20 0 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 0 05-74) 526-5| 55-9 | 500-7] 55-9 || H 14 0 10-36 || 543-0] 65-5 | 459-8] 65-6 || W 22 0 08-34 || 524-6] 55-9 || 491-6] 56-0 || H 15 0 09-37 || 539-5| 65-1 | 463-8] 65-0 || W 23 0 11-30 || 525-7| 56-0 || 493-9| 56-2 | H 16 0 12-01 || 537-1| 64-6 || 470-0| 64.3 | W]14 0 0 14-06 || 530-7| 56-1 || 484-7| 56-5 || B 17 0 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 20 17-36 || 535-2) 57-1 || 477-4] 58-0 || B 19 0 03-90|| 535-4| 62-9 || 479-9| 62-0 || B 3 0 15-91 | 539-1| 57-7 || 477-4| 58-7 || H 20 0 03-99 || 531-1) 62-4 || 479-2] 61-5 || B 4 0 14-10 || 546-8) 58-4 || 481-5) 59-3 | H 2i)40 04-37 || 524-4} 62-0 | 479-9| 61-2 || H ay 10) 13-36 || 551-2| 59-0 |) 485-7] 59-8 || B 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 ; 23 0 11-08 || 521-2} 61-7 | 474-5) 61-5 || H 40 13-05 || 553-2] 59-7 || 487-6] 60-5 || W 11 0 0 14-03 || 525-7| 61-7 || 469-7] 61-5 | B 8 0 13-43 | 556-5| 60-0 || 484-8] 60-6 || W 20 15-20|| 533-7| 61-8 || 465-0] 61-5 || H 9 0 12-75 || 552-9| 60-1 || 482-6] 60-5 | W 2.0 17-76 || 533.4] 61-8 | 469-5] 61-7 || H 10 0 11:77 || 552-6| 60-0 || 480-6| 60-2 || W 3 0 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 0 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 0 || 25 09-19|| 544-9| 59-0 || 477-6) 59-0 | H 7 0 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 0 11-66 || 545-8| 61-9 || 481-4] 61-7 || W L7en0 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 0 04-78 || 534-7| 56-4 || 492-9] 55-6 | W 20 0 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 21 0 07-98 || 529-7| 55-7 || 495-2) 55-2 || B 14 0 10-20 || 541-9| 60-6 || 475-1] 60-0 || H 22 0 11-49 || 531-0] 55-5 |) 484-8] 55-2 | W 15.0 10-18 || 541-2} 60-2 || 479-9| 59-5 || H 23 0 13-56 || 533-2| 55-5 || 492-3) 55-4 || W 16 0 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 17 0 08-66 || 541-1} 59-4 || 496-7] 58-5 || H 1 0 17-63 || 535-1| 55-7 |) 483-5| 56-0 | W 18 0 09-47 || 536-6| 59-0 || 492-0] 58-0 || H 2 0 18-21 || 535-9| 56-1 || 484-3] 56-6 || W 19 0 07-64 || 535-3| 58-6 || 485-9| 57-6 || W 3.0 16-41 || 541-8] 56-7 || 485-4] 57-3 || W 20 0 08-59 || 535-5) 58-2 |) 486-7| 57-3 || W 4 0 14-60 || 548-0) 57-4 || 491-9) 58-2 || W Bit. 20 09-98 || 534-6] 57-9 || 486-9] 57-0 || B 5 0 13-16 || 554-1| 58-0 || 491-7] 58-8 || W 22 0 10-90 || 531-1] 57-7 || 486-8} 57-1 || W 6 0 12-02 |) 555-2] 58-6 |) 497-2) 59-5 || H 23 0 12-87 || 528-9| 57-7 || 491-9] 57-4 || W 7 0 12-51 || 554-3| 59-2 || 501-8} 60-0 || H 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 2 0 16-16 || 541-8} 58-7 || 481-9] 59-3 | W 10 0 12-02 || 547-2} 60-3 || 491-5] 61-0 | H 3.0 17-02|| 540-9} 59-4 || 494-6] 60-1 | W 11 0 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 184—Sept. 214. Biritar. Observed 2™ after the Declination, s—0:000140. BALANCE. Observed 3” after the Declination, =0-000010. MAG. AND MET. oss. 1845. = 38 Gottingen Mean Time of Declina- tion Obs. Hovurty OBsERVATIONS OF MAGNETOMETERS, JuLY 15—21, 1845. DECLINA- TION, BIFILAR. BALANCE. Cor- |Thermo- rected. | meter. Cor- \Thermo- rected. | meter. Observer’s Initial. Gottingen Mean Time of Declina- tion Obs, 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ocococoeoce 09-56 08-92 08-58 08-06 06-09 07-32 07-20 07-24 07-72 09-35 14-82 18-79 21-23 20-89 17-49 13-90 11-54 10-58 11-12 08-80 10-13 10-14 07-00 08-32 08-59 08-21 08-79 07-51 05-62 08-14 07-05 || 531-6 | 531-2 | 538-6 || 537-4 | 542-3 | 544.5 Se. Div. 544-5 542-7 541-0 540-4 537-2 533-5 532-8 oo oor cr YS fila Bite Gta Ba | ou ~ > 529-5 532-5 Rob haAdS 544-1 544-4 546-0 547-0 550-8 551-7 548-3 547-0 544-7 543-3 542-9 541-4 539-6 539-6 536-8 533-7 534-5 533-5 529-3 528-0 527-8 532-6 540-6 543-0 544-0 548-7 549-1 554-7 554-2 553-7 547-6 546-1 544-5 542-7 541-7 542-6 543-4 541-5 537-8 536-3 Mic. Diy. 532-5 j || 472.3 478-7 477-8 478-2 479-3 484-0 485-5 487-7 494-4 498-4 485-8 476-6 473-4 472.9 467-8 478-9 469-5 463-3 457-8 459-3 461-5 462-8 462-7 459-0 459-4 460-0 459-3 462-0 468-6 473-5 478-6 480-6 476-7 474-3 461-1 467-7 470-2 467-8 467-2 467-7 473-9 481-8 482.2 482-5 484-2 486-2 482-4 478-6 469-0 469-8 470-6 469-9 470-6 475-0 477°8 472-3 Sanh Hee ede ew rts sss Sew eseoscooososcoeoooecf]old w eccoocoococoococecoo oecooocoowcocecooocowoocoooococes DECLINA- TION. 25 07-45 06-76 09-19 13-36 17-84 19-61 18-77 17-54 15-51 13-52 11-55 11-57 10-47 10-74 10-14 10-80 08-38 07-38 06-36 07-58 07-98 05-85 | 07-38 | 04-61 12.04 | 11-03 | 12-42 15-39 18-90 20-76 | 19-14 | 17:89 16-08 13-36 | 11.07 10-09 | 10-00 08-48 | 08-99 09-66 | 10-40 10-40 08-79 12-25 Birivar. BALANCE. Cor- |Thermo- rected. | meter. Cor- rected. ‘Thermo- meter. Se. Diy. ° 527-6] 57-5 524-3] 57-5 524:3| 57-6 524-7| 57-7 536-4 539-9 539-4 539-6 547-6 548-4 548-9 543.7 548-7 550-3 546-2 545-7 543-2 537-5 539-9 539-9 541-6 540-4 538-9 533-8 529-2 529-4 530-1 537-1 540-7 542.8 541-7 540-0 544-0 547-8 556-1 553-9 554-5 550.0 546-1 544-8 543-6 539-8 539-0 536-7 539-5 540-1 535-3 536-7 529-4 522-5 517-6 526-1 525-0 525-0 541-2 Mic. Div. 467-7 463-7 460-6 465-0 453-0 456-5 454-4 457-3 457-7 463-1 466-6 457-1 463-9 463-4 464-1 462-0 439-2 452-3 445-8 453-0 459-8 463-3 462:3 464-1 470-5 457-1 460-3 450-5 450-5 457-0 461-5 466-3 470-0 477-4 476-1 477-0 471-7 472-3 465-7 465-1 466-8 467-7 469-5 476-2 475-0 477-4 478-5 476-8 478-2 466-8 465-1 463-2 467-8 466-5 475-5 552-8 479-9 BIrILaR. ' DECLINATION. Magnet untouched, June 18¢—Sept. 212. Observed 2™ after the Declination, k = 0-000140. BALANCE. 57-6 57-7 57-9 58-1 58-5 59-2 60-0 60-6 61-0 61-5 62-0 62-5 62-6 62-5 62-2 61-8 61-4 61-0 60-5 60-0 59-6 59-2 58-9 58-7 58-5 58-7 58-9 59-2 59-7 61-0 61-4 61-5 61-3 61-0 60-8 Observer’s Initial. SSSSSSer Sehr Seger eer See Wee aa sea a Observed 3™ after the Declination, = 0:000010, Gottingen Mean Time of Declina- tion Obs. 22 | 23 ecooocooso: _ bo eooeooeoocecoosososcooscoocosecoeossf oeooococececoceoceoeceoecocoeoc‘eo BIFILAR. Howurty OBSERVATIONS OF MAGNETOMETERS, JuLY 21—25, 1845. 39 Biricar. BALANCE, % | Gottingen BIFILAR. BALANorE. 2 % DECLINA- 2-5 | Mean Time || Deciina- Pas TION. Cor. |Thermo-|) Cor- |Thermo-| Z | of Declina- TION. Cor- |Thermo-| Cor- |Thermo-|| 2 ‘5 rected. | meter. || rected. | meter. ||5 tion Obs. rected. | meter. || rected. | meter. 5 ° , Se. Div. z Mie. Div. S, a h m. ° 4 Se. Diy. e Mic. Diy. Y 25 15-79|| 547-3| 56-7 || 485-9} 57-0 || W | 23 13 0 || 25 08-18|| 547-1] 54-9 || 477-0] 55.5 || D 13-05 || 548-7] 56-8 || 487-7] 57-2 || H 14 0 09-59 || 542-8) 55-0 | 481-1] 55.6 || D 12-18 || 548-2| 56-9 || 492-5| 57-2 || W 15 0 10-58 | 545-0} 55-0 || 481-2) 55.6 | D 11-10 || 548-7} 56-9 || 488-1] 57-1 || W 16 0 11-91 || 541-8] 55-0 |) 478-6] 55.6 || D 09-86|| 548-6] 56-8 || 484-3) 57-0 || H 17 0 09-69 || 545-0} 55-0 || 467-1| 55.6 || D 09-87 || 544-3) 56-7 || 483-3) 56-8 H 18 0 11-48 | 536-6] 55-0 || 468-4| 55.5 || H 09-77 || 542-4] 56-6 || 480-6| 56-6 | B 19 O 10-47 | 539-8] 54-8 || 461-7} 55.3 || H 09-22 || 542-6] 56-4 || 479.5] 56.4 || B 20 0 05-18 || 540-1| 54-7 || 473-4) 55-1 || H 21 O 04-51 || 537-0} 54-6 || 476.0] 55.0 || H 25 09-53|| 540-9| 56-2 || 479-4] 56-2 || B 22; 0 06-39 || 532-7| 54-6 | 476-5] 55.0 || W 09-42|| 540-3| 56-0 || 479-6| 56-0 || B 22: :0 08-61 || 529-0} 54-7 || 466-0) 55-3 || W 10-27) 539-3} 55-9 || 481-0} 55-8 | B | 24 0 0 10-43 || 529-0] 54-8 || 470-4) 55-5 || W 09-74 || 540-7} 55-7 || 479-8| 55-6 || B 10 13-32 || 530-8} 55-0 || 473-9] 55.8 || B 07-84 |) 541-0| 55-6 || 484-3] 55-4 || B pe) 14-40 | 526-9| 55-4 || 488-7| 56-2 || H 06-23 || 538-8] 55-4 || 481-7) 55.2 || B 3.0 16-53 || 542-5| 55-8 || 488-4] 56-6 || B 07-22)| 536-7] 55-2 || 481-1] 55-0 || H 4 0 15-76 |) 557-4| 56-3 || 501-3} 57-1 B 06-36 | 533-3] 55-0 || 484-1| 54-9 || H 5 (0 15-67 | 561-1] 56-7 || 530-0! 57-6 | W 07-35 || 528-7| 54-9 || 486-0| 54-8 || W 6 0 13-91 || 555-2| 57-1 || 552-9] 58-0 || D 09-06 || 523-8) 54-8 || 481-9| 54.7 || H 7 0 11-55 || 559-1 | 57-4 || 556-8| 58-3 || D 12-31 |) 521-0| 54-8 || 476-5| 54-6 || H 8 0 11-00 || 548-9| 57-5 || 547-1] 58-5 || H 14-10 || 525-0| 54-7 | 463-2| 54.7 || H 9 0 06-68 || 543-5) 57-6 || 532-3} 58-6 || H 17-61 | 530-4| 54-8 || 448-6] 54-9 || H 10 0 05-55 || 542-3} 57-7 || 498-4] 58-6 || H 19-28 || 537-5| 54-8 || 439-9) 55-0 || H 1 0 08-93 || 534-5) 57-8 || 481-1] 58-5 || B 17-93 || 545-7| 54-9 || 442-2) 55.2 || H 12 0 07-55 || 538-1] 57-7 || 476-0| 58-4 | B 16-01 || 546-2} 55-0 || 457-2) 55-4 || H 14-46 || 546-3} 55-0 || 473-6) 55-5 || H 13. 0 || 25 03-30] 536-0} 57-7 || 459.4| 58-2 || B 13-23 || 551-4] 55-1 || 482-9) 55-5 || B 14 Ot|| 24 54-26] 523-5] 57-6 || 405-0] 58-0 | B 12-06 || 552-0] 55-1 || 489-0) 55-5 || B 15 of 24 55-78 || 527-2) 57-5 | 328-1] 58-0 || B 10-74 || 551-3) 55-1 || 489-1) 55-3 || B 16 OF} 25 08-90 || 546-4] 57-4 | 280-6] 58-0 || B 10-74) 547-7} 55-0 || 488-2| 55-1 B 17. OF 21-56) 512-3} 57-3 || 304.2) 58-0 || B 10-50 || 542-3) 54-9 || 486-5| 54-9 || B 18 Ot 22.87 || 552-8) 57-3 || 285-7| 57-8 || B 10-21 || 542-2} 54-7 || 482-8] 54-7 || W 19 OF 19-07 || 518-1) 57-1 || 320.2] 57-6 || H 09-47 || 540-8] 54-5 || 483-1) 54-5 | W 20 Of 16-82 || 518-9| 57-0 || 350.9] 57-4 || H 21 0 16-53 || 514-3} 57-1 || 382.2] 57-6 || W 25 09-44 || 541-4] 54-3 || 482-6| 54-3 || W 22 0 20-33 || 516-9) 57-1 || 398-8] 57-7 || H 09-33 |) 540-3] 54-1 || 483-7| 54-0 || W 23 0 18-60 || 500-4} 57-2 || 437-3] 58-0 | H 08-95 || 540-3) 54-0 | 487-4| 53-8 || W]25 0 0 18-81 || 505-7] 57-6 || 451.2] 58-4 || H 08-56 || 540-2} 53-8 || 491-5] 53-6 || W kd 17-65 || 529-8} 58-0 || 466-8} 59-0 || H 07-08 || 540-7) 53-6 || 494-2} 53-3 | W 20 17-19 || 538-2| 58-5 || 482.9] 59-6 || H 05-92 || 538-2} 53-4 | 496-7| 53-1 | W 3.2 16-57 || 540-0} 59-1 || 487-0] 60-4 || H 03-54 || 5387-2} 53-3 || 494-1] 53-0 || B 4 0 15-02 || 538-9} 60-0 || 496-3| 61-3 || H 03-65 || 542-3] 53-1 | 486-9) 52.8 B 5 (0 14-17 || 546-2} 60-8 | 499.1] 62-2 || H 03-02 || 541-2} 53-0 | 483-1| 52-8 | H 6 0 13-27 || 558-5| 61-6 || 497.7] 62-8 || B 03-70 || 527-8| 53-0 || 481-0] 53-0 || H 7 0 11-28 || 546-3} 62-2 | 512-5] 63-4 | B 09-64 || 526-3} 53-0 | 473-5| 53-2 || H 8 0 10-30 || 546-2} 62-5 | 511-3] 63-5 || H 14-13 | 529-0} 53-0 || 459.3) 53-4 || H 9 0 08-72 || 555-4] 62-7 || 488.7] 63-5 || B 17-80 || 532:0| 53-3 || 456-1) 53-7 || H 10 OF 03-13 || 539-6| 62-7 || 453-0| 63-2 || B 18-50 || 536-4| 53-6 || 458-1| 54-1 B 1 1p.0, 08-58 || 534-7| 62-5 || 446-1) 63-0 || W 18-11 |} 549-2} 53-9 | 460-1] 54-5 | H 12. 0 06-51 || 535-2] 62-1 || 453-7} 62-4 || W 17-29) 541-6| 54-2 | 477-5) 55-0 || H 15-02 || 549-5] 54-5 || 487-3| 55-2 | B 13. 0 || 25 09-20}) 534-6} 61-7 || 456-3| 61-7 || W 13-07 || 545-7| 54-8 || 494-9] 55-4 | W 14 0 08-38 || 535-7] 61-2 || 455-3} 61-0 || W 13-50 || 554-6} 55-0 | 497-4| 55-5 || W 15 0 08-08 || 535-0} 60-7 || 456-5) 60-5 || W 11-57 | 559-3) 55-0 | 503-9| 55-5 || W 16 0 07-89 || 534-4] 60-3 || 456-7} 60-0 || W 11-33] 557-0] 55-0 || 501-1] 55-5 || W 17 0 08-79 || 533-8] 59-8 || 454-2] 59-5 || W 10-54 || 549-6| 55-0 || 499-3] 55-5 || B 18 0 06-36 || 533-9} 59-4 || 460-7] 59-0 || W 09-76 || 550-8} 54-9 || 493.7] 55-5 || B 19 0 07-35 || 529-2} 59-0 || 467-6] 58-5 | B 09-84 || 549-0] 54-9 || 485-0] 55-5 || B 20 0 08-83 || 528-0| 58-7 || 465-8| 58-3 || B DECLINATION. Magnet untouched. June 184—Sept. 214. Observed 2™ after the Declination, k=0:000140. BALANCE, Observed 3™ after the Declination, s=0:000010. + Extra Observations made. July 234 10b—244 10h, Term-Day Observations made. 40 Gottingen Mean Time of Declina- tion Obs. dh. 25 21 22 23 26 CoOstaurwnreo eocoocooocooccococecoo cocoococoooococSo® 0 0 0 0 0 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Hovurty OBSERVATIONS OF MAGNETOMETERS, JULY 25—31, 1845. DECLINA- TION. . 10-09 09:89 11-24 14-77 | 17-36 16:30 15-47 14-77 | 14-20 12-38 || 11-59 11-41 10-92 | 08-34 08-61 09-15 | 10-41 09-86 09-32 08-85 10-33 || 06-79 | 06-41 | 08-28 09-94 | 13-02 14-46 15-27 || 15-47 || 15-41 || 13-32 11-52 10-67 11-37 10-28 10-54 11-10 11-25 11-24 10-60 || 10-54 10-23 09-37 08-59 |) 06-44 06-74 | 06-66 | 07-10 | 09-57 | 13-39 15-49 |) 17-34 17-12 16-12 14-11 | | | BIFILAR. BALANCE. Cor- rected. | Se. Div. 25 10:03 | 528-5 525-8 527-8 529-3 535-5 539-8 532-5 538-5 541-9 545-7 550-4 547-1 545-1 545-6 539-4 538-2 536-9 536-5 534-4 535-4 539-3 532-6 532-1 530-4 525-5 526-2 523-9 528-2 530-5 537-5 541-1 541-7 549-2 548-7 551-7 547-7 544.7 543-3 541-6 540-0 538-4 538-9 537-1 535-8 534-4 536-1 533-2 528-8 524-4 523-7 524-8 527-5 529-1 535-2 539-0 543-5 Thermo- meter. 58-4 58-3 58-2 58-3 58-5 58-9 59-3 59-8 60-1 60-5 55-4 53-8 56-2 57-0 57-9 Cor- rected. 468-8 469-6 470-8 466-8 469-5 471-0 466-6 474-2 471-5 483-3 484-9 483-2 477-7 4723 471-8 459-8 441-8 447-3 457-5 460-1 463-3 467-7 465-2 470-1 475-0 473-9 469-6 466-3 463-7 476-9 483-5 487-7 483-5 486-2 482-4 491-5 488-9 477-7 470-9 465-8 464-5 463-6 464-2 467-4 477-2 479-9 487-9 488-4 492-2 490-5 485-8 481-8 476-9 475-9 480-4 58-7 | 482-1 | Mic. Div. Thermo- meter. 58-2 58-2 58:3 58-5 58-9 59-7 Seem ded SSW Se SSS SSR Observer’s Initial. Gottingen Mean Time of Declina- tion Obs. ecoocoococeccoooooooooeooeooce DECLINA- TION. 11-75 09-26 09-71 10-77 10-60 11-14 11-00 09-57 25 09-94 09-79 08-41 08-63 07-74 06-73 07-07 07.37 07-81 08-28 11-41 13-94 16-75 17-96 15-99 13-79 12-92 12.42 10-06 08-77 08-80 07-81 09.29 09-02 08-88 08-03 07-57 09-10 03-60 06-27 05-92 07-00 08-08 10.43 12-69 15-41 16-68 17-15 15-89 14-30 12-62 12-09 07-99 10-68 10-70 10-25 09:96 escoscoooooocecoceceococecece 09-39 BIFILAR. BALANCE. Cor- rected. Se. Div. 546-5 546-6 547-8 545-9 545-2 543-7 543-2 542-7 542-6 541-5 538-7 538-0 537-4 537-8 536-2 535-1 531-0 529-6 529-8 533-0 533-5 542-0 547-7 545-8 547-8 538-3 553-1 548-8 Thermo- meter. 59-4 60-0 60-5 60-8 60-8 60-8 60-5 60-2 59-9 59-5 59-0 58-5 58-0 57-5 57:3 57-0 56-7 56-5 56-7 57-0 59-2 59-9 60-5 60-8 61-0 61-0 60-7 60-5 60-3 60-0 59-8 59-5 59-2 58-9 58-6 58-3 58-2 58-0 58-0 58-0 58-1 58:7 59-2 59-9 60-2 60-3 60-3 60-2 60-1 60-0 59-7 59-4 59-1 58-9 Cor- rected. 484-7 473-2 477-6 474.3 473-3 471-3 467-2 465-1 462-9 459-6 462-1 465-5 471-4 469-3 473-2 473-6 472-4 475-3 471-9 465-9 464-7 460-3 452-1 464-5 470-2 477-3 490-4 496-1 495-1 483-0 474-2 467-7 465-8 465-4 462-5 456-2 465-4 473-8 481-4 478-0 477-5 468-7 457-3 439-0 435-5 445-4 448-5 462-0 466-5 472-2 473-6 471-4 465-1 464-6 464-3 465-7 Mie. Div. Thermo- meter. 60-5 61-0 61:3 61-4 61:3 61-2 61-0 60-5 60-0 59-0 58-6 58-2 58-0 58-0 58-0 58-2 58-7 59-5 60-3 61-0 61-0 61-0 61-0 60-8 60-5 60-2 59-8 59-5 59-0 58-8 bserver’s Initial. Seer WS Wee see seus Sete nmeddagm |° BIFInar. DECLINATION, Observed 2™ after the Declination, <=0-000140. BALANCE, Magnet untouched, June 184—Sept. 214. Observed 3™ after the Declination, k=0:000010. HourLy OBSERVATIONS OF MAGNETOMETERS, JULY 31—AvcGusT 6, 1845. 4] Observer’s BIFIvAR, BALANCE. Gottingen | BIFiLaR. BALANCE. Mean Time || DEeciina- 7 = = of Declina- || TION. Cor- |Thermo-|} Cor- |Thermo-|| tion Obs. rected, | meter. || rected. | meter. Gottingen Mean Time || DEcLINA- of Declina- TION. Cor- |Thermo-|) Cor- |Thermo- tion Obs. rected. | meter. || rected. | meter. || Initial. Observer’s | ! } c. : 2 Mie. Diy- v | 25 12-11] : 57-8 || 459-6} 57-9 13-69 . ‘ 461-4} 58-2 | 18-13 | . : 463-8} 58-7 || 18-37 | . : 467-9] 59-3 21-29 : D 462-3} 60-0 20-77 | : 9: 473-8] 60-7 15-17 . . 506-7| 61-4 16-25 | s1- 517-9} 62-0 14-96 | 556. : 517-1} 62-6 12-51 | 547. 9 || 519-4] 62.8 | 12-76 552. 32+ 497-3| 62-7 12-90 | . i1- 482:5| 62.5 | 10-97 | : . 475-5| 62-2 10-81 43. : 472-3| 62-0 08-41 | . : 460-2} 61-5 | 07-64 . 447-4| 61-2 f Se. Div. 5 || Mic. Div. G 25 09-73 || 540-7] 58-6 || 466-6) 58-4 09-15 || 540-4 +3 || 468-1 08-99 || 539-8 : 468-6 08-95 || 539-4 : 469-2 07-98 | 540-6 . 469-2 06-23 || 538-0 : 470:3 05-32 || 534-4 : 476-3 04-84 || 530-3 . 480-3 04-81 || 528-7 : 480-3 06-97 || 529-7 J 471-5 09-26 || 533-8 : 458-6 13-57 || 540-4 : 451-0 17-76 | 551-6 . 447-5 23-88 || 558-7 : 458-7 22-99 || 539-8 : 468-6 20-55 |) 555-5 . 488-1 19-91 || 546-9 : 560-7 19-41 || 552-5 ‘ 569-4. 13-25 || 549-1 : 537-2 10-88 || 554-3 : 506-9 11-27 || 549-2 ‘6 || 489-0 12-02 || 547-4 . 481-6 54-01 || 551-8 : 408-9 06-16 |) 535-3 SS) Sy) bo pb OONaAuUP wD Own gemini | eescocoooecoocooosooos a esoosoosocosceosocoos 09-76 . 440-8] 60-8 435-3} 60-3 | 444.9} 59-7 | 432-7| 59-0 425-9] 58-5 436-7| 58-1 461-8] 57-8 469-8} 57-6 479-7 | 57-7 467-6 473.0 482.4 476-6 ouocooooco SS es 02-28 | 534-5 18-35 || 535-6 10-00 || 531-0 03-77 | 541-5 08-05 || 541-6 03-23 || 539-6 08-12 || 533-9 10-65 || 529-8 10-68 | 524-3 12-70 || 522-8 13-69 || 529-9 19-10} 531-3 21-81 || 539-5 22-15 |) 530-8 17-53 || 540-6 14-64 || 541-5 13-44 || 545-0 11-37 || 548-9 11-77 || 550-4 10-50 | 550.2 10-45 | 543-5 09-86 || 546-3 06-26 || 534-6 05-92 || 540.9 541-5 545-6 545-5 541-2 537-8 539-5 ocoooooocoecocoocoeceocoococsecocea 539-2 537-5] 62-7 535-9| 62-2 534.6| 61-7 533-7| 61-2 | 530-4] 60-8 527-4| 60-4 527-3| 60-0 527-7| 59-8 523-7| 59-7 522.0} 59-7 520-9| 59-8 530-9] 60-3 | 538-7| 61-2 | 535-1| 62-3 532-4] 63-2 | 9| 64-5 | Eater oR Destsi-=f-se--E-E-P-B-P-P-e-E-RP--lefecferl eff Ms] “BE E-P-E-Le Peder feed -eh ef pene 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| 57. ; 09:57 || 517-2] 57-8 | 472.1 ooocooocococsco$ocso waseees SS Wnt eee sods Bess oooococo DECLINATION. Magnet untouched, June 184—Sept. 214, Birizar. Observed 2™ after the Declination, s—=0-000140. BatLance. Observed 3 after the Declination, k=0-000010. + Extra Observations made. Aug. 3413. The quantities in parentheses are approximate, and have been used in summations. MAG. AND MET. oBs., 1845. ui 42 Hovrty OBSERVATIONS OF MAGNETOMETERS, AuGcusT 6—11, 1845. Guttingen BIFILAR. BALANCE. ig Gottingen BIFILAR, BALANCE. be 7 Mean Time || DECLINA- &--S] Mean Time || DECLINA- |) Pas of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-| 2°] of Declina- |; TION. Cor- |Thermo-| Cor- |Thermo-|| 22 | tion Obs. rected. | meter. || rected. | meter. 5 | tion Obs. rected. | meter. || rected. | meter. ||5 ~ d. ora _ ~ | Se. Div. My Mic. Div. 2. | a: hy Sonn P) , | Se. Div. ci Mie. Div. id , 6 5 O|| 25 12-85]| 543-7| 63-8 | 486.5 65:3 || H | 8 13 0} 25 15-44| 544-0| 64-6 || 440-2] 64-5 || B 6 0] 12-01 || 552-7] 64-5 | 484-5] 65-9 | B 14 0 10:45 || 540-4] 64-2 || 424.5] 64-1 | B a0 10-47 || 548-9| 64-8 || 477-8] 66-0 | B 15 0 |) 10-21 || 535-0| 63-8 || 429-9) 63-6 || B S80 10-25 | 551-8} 64-9 | 469-8) 65:6 | B 16 0 17-33 || 533-6| 63-4 || 409-8] 63-1 || B Ona 10-77 || 548-2| 64-7 | 466.0) 65-4 | B U7 <0 07-11] 535-3) 63-0 | 434.0! 62-6 || B 10 0 11-00| 545-9] 64-5 | 461-1) 65-2 | B 18080 04-64 || 536-4| 62-7 || 458-5| 62-2 || B | ten 09-02] 542-5| 64-3 | 458-7| 65-0 || W 19 0 || (06-00)) (533-4)... (466-5) -..--: 12 0 | 09-19 || 546-7| 64-0 || 434-1) 64-5 || W 20 0 07-51 || 530-4| 61-9 || 474-5| 61-7 || H 2) 0 || 10-36 || 528-9| 61-6 | 471-7| 61-0 || W 13 0 || 25 08-88 || 542-4] 63-7 || 443-0} 64.0 | W 22 0 11-10] 526-4) 61-3 || 481-5] 61-0 || H 14 0| 08-01 || 539-7| 63-4 | 453-6| 63-7 || W 23 0 || 14-06 || 523-0} 61-2 || 471-4] 61-0 || H 15 0 09-57 || 541-7| 63-1 || 455-5] 63:3 || W} 9 0 0] 16:15 || 525-5| 61-0 || 459-3) 61-0 || H | 16 0 09-98 || 538-3] 62-8 || 461-8] 62-9 || W 1 a0 18-90 || 527-0} 61-0 || 445-5! 61-0 || H 17 0 07-84 || 542-5] 62-5 || 460-0] 62-5 | W bh) 19-48 || 542-8] 61-0 || 447-8| 61-0 || H 18 0) 06-88 || 540-6] 62-2 | 465-7! 62-1 || W 3 0] 18-63 | 537-6| 60-9 || 467-8} 60-8 || H 19 0 07-74 || 534-0| 61-9 || 466-6| 61-6 || B 4 0] 16-50 || 543-3| 60-8 || 474-8| 60-7 || H 20 0 13-32 || 524-5| 61-7 || 470-3] 61-4 || B 5 0 15-36 || 553-5| 60-7 || 488-6] 60-4 || H 21 0 | 11-64 || 533-7] 61-4 || 462-1] 61-3 || H 6 0 12-72 || 544-2] 60-5 || 506-5! 60-0 || B | 22 0 08-65 || 523-0] 61-3 || 465-9) 61-3 || H 740 10-03 || 541-5] 60-2 || 516-9| 59.7 || B 93 0 | 10-67 || 524-7| 61-3 || 461-3] 61-6 || H 8 0| 09-69 || 546-6] 59.9 || 504.5| 59-3 || B rf Oe 14-33 || 525-3] 61-6 || 452-2) 62.2 || B 9 0| 10-50 || 543-4| 59-6 || 492-4| 59.0 || B | 1) 90" 18-30 || 530-1| 62-0 || 459-5] 62-9 || H 10 0) 10-53) 542-2] 59.3 || 484.2] 58.7 ] B 2580 | 15-14|| 536-3| 62-6 || 466-4) 63-2 || H 1d, 40 10-21 || 543-7} 59.0 || 479-8] 58-5 || W |e) 3 0] 14-68 || 539-2! 63-0 || 486-1] 64-0 || B 12 0+ 00-69 || 550-6| 58-8 || 438-1} 58-3 || W |e 4 0 16-18 || 546-5] 63-5 || 490-4] 64.4 || B : 5 0 11-17 || 543-0] 63-9 || 492-9| 64-6 || B | 10 13 0 || 25 09-10] 542.3} 58-1 |) 468-1] 58.1 || H 6 0] 10-80 || 545-8] 64-0 || 489-1] 64-8 || W 14 0] 07-40 || 538-0| 58-0 || 458-2] 58-0 || H | 7 0 09-82 || 545-0| 64-0 || 479-3] 64-7 || H 15 0) 09-12 || 537-2) 57-8 || 466-5| 57-8 || H | 8 0 10-43 || 547-2| 64-0 || 467-3| 64-7 || H 16 0| 08-82) 538-0| 57-7 || 476-6] 57-7 || H 9 0 10-53 || 547-3] 64-0 || 464-5] 64-5 || H 17 0] 07-54 || 540-3| 57-6 || 480-8] 57-5 || H 4 10 0 08-79 || 545-4] 63-9 | 463-6] 64-3 || W 18 0| 06-26 || 539-6| 57-5 || 485-4] 57-4 || H | 110" | 07-84 || 542-5| 63-6 || 460-0] 63-9 || H 19 0 | 05-23 || 538-0| 57-4 || 490-4| 57-3 | W Im 120 10-04] 544-0] 63-3 || 451-9| 63-5 || H 20 0 |} 05-42|| 531-0| 57-4 || 499-9| 57-3 || W J Fal {0 07-00) 531-4| 57.4 | 495-8) 57.5 || BY 13 0 || 25 12-83]| 542-3] 63-0 || 444.3] 63-1 || H 22 0 08-11 || 528-4] 57-4 || 496-8] 57-8 || W | 14 Of 04-56 || 529-8| 62-6 | 407-9] 62-6 || H 23 0 09-93 || 525-3] 57-7 || 481-4] 58-2 || W J 15 ot 26-16 || 532-9] 62-3 || 390-8] 62:2 || H | 11 0 O 11-99 | 522-7| 58-1 || 475-5) 58-7 || W 16 Of, 07-20 || 540-6| 62-0 || 402-8| 61-8 || H 10% 14-99 | 531-2| 58-5 || 471-9| 59-2 || W J 17 0 06-26 || 537-5| 61-6 || 432-4| 61-2 || H oT) | 16-86 | 535-9| 59-0 || 480-0| 59-7 || W 18 0| 06-53 || 531-8| 61-2 | 455-3} 60-5 || H 3) 0 16-72 || 537-9] 59-5 || 483-0] 60-3 || W 19 0} 05-56 || 530-5| 60-9 || 465-0| 60-3 || W 4 0| 15-83) 542-1] 60-0 | 483-4] 60-8 || W 20 0 06-34 || 525-8| 60-6 | 470-4| 60-0 || W 5 o| 13-23 | 543-2| 60-5 | 492-7] 61-3 || W 21 20"| 14-94|| 516-1| 60-3 | 471:5| 59-9 || B 6 0 10-53 || 545-0) 60-9 || 495-9| 61-7 || H | 22 0) 14-89 || 517-7| 60-3 | 464-1] 60-0 || W 7 O| 08-21 || 549-1] 61-1 | 495-0} 61-7 || H 23 0 | 16-38 || 517-5| 60-3 | 464-1] 60-3 | W 8 0]|* 08-52] 547.6] 61-0 | 483-8) 61-5 || H 8 0 oO} 18-74 || 524.0| 60-5 | 456-0| 61-0 | W 9 0] 09-42 | 545-0] 60-7 | 477-8} 61.0 || H 1 0} 20-79 || 525-2) 61-0 || 451-8] 61-9 | W 10 0| 09-91 | 544-6) 60-4 | 473-2) 60-6 || H 2 0 20-32|| 532-5| 61-7 || 455-5| 62:8 | W lit (0) }} 10-03 || 542-3] 60-1 || 470-2| 60.2 || B | 3100.) 19-02 | 537-7) 62-6 || 461-2) 63-8 | W 12) 40 | 09-66 | 541.4] 59-9 | 467-0} 59.8 || B 4 0| 17-06 || 549-4| 63-5 || 464-1] 64-7 | W | 5 0 | 14-13 || 552-4) 64-4 || 467-7| 65-5 | W 13 0 || 25 09-64] 540-4] 59.6 || 467-2| 59.4 || B 6 0] 11-68 || 547-9| 65-1 | 479-7| 66-7 | H 14 0 09-02 538-3| 59.3 || 470-1] 59.0 || B 7.00 10-09 || 548-0) 65-5 | 476-1} 66-5 | H 15 0 09-39 || 538.7| 59.0 || 471-2] 58-7 || B 8 0 10-43 || 547-2} 65-8 || 463-3) 66-5 | H 16 0) 08-95 || 538-6] 58-8 || 471-9) 58-5 || B 9 0 10-13 || 545-3) 65-8 | 463-2 66-5 | H 7eOw| 07-69 | 537-9| 58-5 || 477-3] 58-2 || B 10 0| 11-28 || 550-0} 65-7 || 457-6! 66-2 | H 18 0 06-23 || 537-6] 58-2 || 483-6] 58-0 || B i On| 06-93] 547-6| 65-2 || 451-4) 65.5 | B 19 0 05-05 || 535-8| 58.0 |] 487-0] 57-7 || H 12 0 09-53! 545-11 64-9 | 444.4° 65-0 ! B 20 0! 03-9911 532-9! 57-8 Il 486-0] 57-5) H DECLINATION. Magnet untouched, June 18¢—Sept. 214. Birirar. Observed 2 after the Declination, k=0-000140. Bauance. Observed 3™ after the Declination, s=0:000010. + Extra Observations made. Aug. 84195. The quantities in parentheses are approximate, and have been used in summations, 1 Hourty OBSERVATIONS OF MAGNETOMETERS, AUGUST 11—16, 1845. 43 BIFiLar. BALANCE, Gottingen BiFILar, BALANCE, Mean Time || DecLINA- ] of Declina- TION, Cor- \Thermo-| Cor- |Thermo- tion Obs. rected. | meter. |} rected. | meter. | Gottingen Mean Time | DrcLina- of Declina- || TION. Cor- |Thermo-| Cor- |Thermo- tion Obs. rected. | meter. || rected. | meter. Observer’s Initial. Observer’s Initial. 4 Sc. Diy. o Mice. Diy. 10-23 | 551-8] 58-5 | 09-35 | 548-9 | 08-82 | 547-0 10-13 | 549-6 09-05 | 551-7 07-17 | 553-8 08-53 | 549-0) 09-20 | 548.4 a 14 Se. Div. 2 Mic. Div. e 529-4} 57-7 || 480-5] 57-4 525-8| 57-7 || 472-4) 57:3 526-5) 57-6 || 473-1) 57-5 | 526-5] 57-7 || 472-4) 57-7 525-1) 57-7 || 468-0} 58-0 | 15-41 | 532-1) 57-7 || 466-9 14-13 || 537-8} 57-8 |) 468-1 12-58 || 541-6 *8 || 475-0 10-33 541-2] 57-9 || 481-0 09-30 || 544-4 ‘9 || 484-7 08-99 |, 549-4 : 481-7 09-35 || 550-3 q 475-5 09-87 | 547-9 : 481-2 10-09 || 546-9 -6 || 477-6 10-21 || 545-4 -4 || 476-3 10-06 || 545-2. . 474-9 24dseadueennmnn mdse seureen ene dessds Soe © ONO ore Scooocooocosr 08-82 | 551-2 07-78 || 548-7 06-86 | 546-0 07-58 || 545-1 06-76 || 536-9 06-79 || 541-4 04-37 || 540-3 | 05-99 | 534.5 | 05-58 | 528-6 14-67 | 525-5 11-96) 525-0 17-06 || 530-4 18-77 || 532-3 24.12), 549.5 22.80 || 513-7 19-86 | 563-6 15-94 || 550-8 10-75 || 543-0 07-24 || 546-2 09-42 || 549-1 10-47 || 542-1 10-48 | 545-7 10-16 | 543-5 10-13 || 541-6 ccoococcooooooscooos 09-82 || 543-9 : 475-9 08-97 || 544-9 07-71 || 542-8 08-63 | 539-7 08-66 || 541-3 07-02 || 541-3 06-23 || 539-8 05-77 || 536-2 04-14) 533-8 06-76 || 527-8 11-41 || 532.3 13-96 || 535-0 16-41 | 540-6 17-17 16-41 13.74 11-86 09-96 09-60 10-07 11.00 11-00 10-13 08-11 Seseococossooococseocosooeoocoooeco SSOHWAYGHHEUNHOahAAS Hone eS or orgy Or Gr Or Gr Or Or GS OO AMAIWAWAIIDA GAY 10-67) 544-1 | 542-4 540-3 | 538-8 | 538-0 535-5 531-9 525-7 520-3 518-7 521-4 529-4 | 539-6 545-4 | 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 07-94 08-18 07-45 07-67 07-32 06-01 05-90 05-97 06-57 07-72 10-30 12-45 14:17 15-27 14.13 . 57.9 11-57 HL! 58-3 ; 59-0 | Or Or Gr Or Gr Cr Or Gr Gr or on PRMAIAITRAAAAAASYHWRERAAAD eseooooocoocoecocoocoso Ke |AHONwWWHNONSKRSAHSUHOSOwHWULHGMHD AE THSSsSsSsSett tet eettey TO corr Or Sr rr DECLINATION. Magnet untouched, June 184—Sept. 214. Biriwar.. Observed 2™ after the Declination, k=0-:000140. BALANCE. Observed 3™ after the Declination, s=0:000010. + Extra Observations made. 44 HovurLy OBSERVATIONS OF MAGNETOMETERS, AuGust 17—22, 1845. Géttingen | || Brrmar. || Baance. | % | Gottingen | Brrimanr. BALANCE. % ‘s Mean Time || Dectina- | Tay | >=] Mean Time |) Deciina- = 7 Pagel of Declina- || TION, Cor- |Thermo-| Cor- |Thermo-| 2°s | of Declina- TION, Cor- |Thermo-|| Cor- |Thermo-| 2 2 tion Obs. | rected. | meter. | rected. | meter. ot tion Obs. rected. | meter. || rected. | meter. is, Se | Ne | —— ——| — doh mio ¢ |se.Div.| 2 ||Mic.Div.| © do the Sn ed ae Se.Div.| ° ||Mic.Diy.| ° 17.13 0 || 25 01-34] 531-8| 56-2 | 421-8) 56-4 B }| 19 21 0 || 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 2250 09-29} 520-1] 53-6 || 474.9] 53-5 || W 15 ot | 16:15 || 529-5) 55-9 || 423-3) 56-1 | B 2380 14-41 | 516-0) 53-6 | 477-6) 53-5 |) W 16 Of 08-25 || 548-2} 55-8 || 366-3| 56-0} B | 20 0 O 16-75 || 521-6] 53-6 || 476-0| 53-7 || W 17 Of] 01-95 | 538-4) 55-7 || 404-0| 55-9 | B 19-40 17-67 || 527-4} 53-7 || 474-9] 53-9 | B 18 0 | 11-10 | 525-6) 55-6 || 425-2) 55-8 || B -2P-20) 18-32 || 535-2| 53-7 || 475-1) 54:2 || W 19 0} 10-33 || 527-9] 55-4 || 428-6] 55-7 | H B df 17-13 || 541-4| 53-9 || 479-4) 54-4 | W 20 0 | 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 Sen) 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) 95-0 | H 23) 50)| 13-17 || 518-5] 55-8 || 438-8| 56-4 | H ui AY) 08-46 || 547-5| 54:5 |) 486-4) 55.2 | H hope G5) 16-15 || 516-4| 56-3 || 446-8| 57-2 || H 8h40) 08-83 | 545-8| 54-5 |) 480-1] 55-2 | H 1505 19-86 || 523-6| 57-0 || 471-8] 58-2 || H 9) 10 08-79 || 550-5] 54-5 || 474-7) 55-0 || H 2 0 19-51|| 535-7| 57-8 || 489-6| 59-2 || H TORO 09:56| 546-1) 54-4 || 475-1) 55-0 | H Sm) | 19-61 || 542-7] 58-5 |) 494-0) 59.7 || H lee it) 09-35 || 545-0| 54-3 || 472-0] 54-7 | B 4 0 18-13 || 548-0| 59-0 || 497-6| 60.2 || H 125 70 09-13 || 543-4| 54-1 || 472-2) 54:5 | B 5 0 | 12-55 || 539-5| 59-4 || 496-6] 60-7 || 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 40.4 07-98 | 543-4| 60-0 || 488-5| 60-9 || B 14 0 08-68 || 543-4] 53-8 || 472-4] 54-0 || B 8 0 08-99 | 542-5) 60-1 || 477-1) 60-9 | B 150 09-30 || 545-0} 53-7 || 472-4| 53-7 | B 9 0| 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 0 || 09-42 || 545-0) 60-0 || 464-3] 60-5 || B 17-0 06-79 || 542-8} 53-3 | 478-3] 53-3 || B 10 09-27 || 543-5] 59-8 || 462-7] 60-2 || W 18s 0 05-15 || 539-8] 53-1 |) 482-4| 53-0 || B Pe | 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 vi} (0) 07-37 || 513-9| 52.8 || 483-2) 53-2 | H 15 0 09-56 || 539-9| 58-7 || 466-0) 58-7 | W 20 40 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 O 15-91 || 520-8| 53-3 || 466-3) 54-3 || H 710 08-45 || 538-4] 58-1 || 471-1} 58-0 || W 1 0 18-70 || 529-8] 53-9 || 464-4| 55-0 | H 18 0 07-37 || 537-6] 57-8 || 476-3| 57-7 || W 2e80 18-77 || 539-4| 54-3 || 459-8| 55-5 || H 19 25 05-92 || 531-8| 57-5 || 482-9) 57-2 || B Bt) 16-68 || 543-0| 54-8 || 466-3] 55-8 || H 20 0 | 06-53 || 529-3| 57-3 || 484-8| 57-1 | B 4 0 14.28 || 546-0} 55-0 || 476-4] 56-2 | H 21 0 05-92) 521-4) 57-1 || 480-5] 57-0 || H 5. 10 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 nO) 09-86 || 547-8] 56-1 || 476-8) 57-0 || B 19 0 0 16-06 | 533-4] 57-0 || 460-8| 57-3 || B 8 0 10-41 |) 547-5} 56-3 || 470-5} 57-0 | B SG) 17-70 || 536-4| 57-1 || 458-9] 57-3 || B 9 0 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 Ea) 19-28 |) 542-8] 57-1 || 469-4| 57:3 || B ay (0) 10-20 || 543-8) 56-0 || 466-2) 56-5 || W 4 0} 17-02 || 540-2} 57-0 || 483-5| 57-2 || B 12/50) 09-19 || 543-2] 55-7 || 463-6] 56-0 || W 50 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 eeOes 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 iy (0) 08-14 |) 547-2) 54-7 || 464-7) 54-5 || W 9 0 09-71 || 549-2| 56-4 || 472-2] 56-2 || W 16 0 07-37 || 544-7 | 54-2 | 467-5) 53-8 || W 10 0 09-73 || 547-3) 56-1 || 470-2} 55-9 | W iby) 06-90 || 543-8| 53-7 || 470-0} 53-1 || W 11 0 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 i5 O 09-76 || 543-0| 54-9 || 468-9| 54-6 || H 23) 10 13-77 || 522.9| 52.3 || 474-8| 52-7 || H 16 0 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 170 09-02 || 542-1] 54-4 | 464-8| 54-0 | H 1 0 18-84 || 534-8} 53-5 || 477-1] 54-8 || H 18 0 06:77 | 537-6| 54-2 || 470-4] 53-8 | H D0 20-08 || 544-1] 54-6 || 471-6] 55-8 B 19 0 06-88 || 534-4] 54-0 || 473-4| 53-7 | W 30 18-77 || 541-6] 55-6 | 479-3} 57-0 | B _ 20 0 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. Biritar. Observed 2™ after the Declination, k=0:000140. BALANCE, Observed 3™ after the Declination, s—0:000010. + Extra Observations made. - Aug. 194 1922", Workmen engaged with scythes outside the Observatory ; the iron removed to a distance during observations. HourLy OBSERVATIONS OF MAGNETOMETERS, AuGusT 22—27, 1845. 45 07:55 || 535-4 5 447-3| 57-5 17-76 || 552-1] 59-6 || 503-4) 60-7 10-50 || 536-1 . 440-5| 57-5 11-74 || 550-6| 60-2 | 528-4) 61-2 11-24 || 529-6 : 445-3 | 57-7 10-72 || 545-6} 60-7 |) 526-7| 61-6 | 09-59 on rs eo to ior} = o o oO = on a = a 13-07 || 527-2 . 442.3] 58-0 . 15-94 || 528-0 : 448-3 | 58-3 09-15 || 547-0| 61-0 | 474-1] 61-4 | 19-78 || 534-2 . 452-0| 58-8 06-76 || 538-2| 60-7 || 459-3; 61-0 20-50 |) 535-0 . 456-0} 59-5 07-71) 541-2] 60-3 || 456-4) 60-6 | Gittingen BIFILAR. BALANCE. eo Gottingen BIFILAR. 3ALANCE. | is Mean Time || Decurna- 2 .=] Mean Time || Decuina- | | >s of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- Bs of Declina- rion. || Cor- |Thermo-|| Cor- |Thermo-| = tion Obs. rected. | meter. || rected. | meter. ||O tion Obs. | rected. | meter. rected. | meter. | 5 az m. Fe ask Se. Div. Mic. Div. ° edie errs [lia ae Nsanpiyelltanes |Mic.Div.| ° || 0 || 25 14-35 |) 551-5 . 490-2| 58-6 25 13 O | 25 09-05 || 542-2) 58-8 451-1| 59-0 | H 0 11-88 || 548-1 : 491-0| 59-0 14 0 09-47 || 542-5) 58-4 || 451-1} 58-5 | H 0 11-00 || 548-6 : 486-5} 59-1 15 0 09-05 || 541-8} 58-0 |) 4513, 58-0 | H 0 05-82 || 550-8 : 483-3} 59-1 16 0 | 07-74 || 542:9| 57-7 || 452-8) 57-5 | H 0 09-89 || 550-0 : 472-5] 58-8 1 ae || 07-47 || 542-7| 57-4 | 455-6) 57-2 || H 0 09-74 || 547-9 . 468-3| 58-7 18 0 05-72 || 544-4) 57-1 | 461-4; 56-9 || H 0 08-97 || 545-8 . 464-4| 58-5 19 O 02-66 | 540-2| 56-9 || 465-3) 56-5 | W 0 08-21 || 549-1 : 458-1) 58-3 20 O 02-35 || 534-0| 56-7 467-4! 56-3 || W 21 0 03-06 || 530-3) 56-5 || 464.2) 56-3 | W 0 07-20 || 549-9 . 450-9| 58-2 0 05-25 || 532-4| 56-4 || 455-5) 56-3 | W ot 02-01 || 538-1 . 447-5} 58-1 0 09-73 | 532-1| 56-4 | 449-8) 56-5 04-98 || 536-4 . 455-2| 58-0 0 15:34 | 532-3) 56-6 | 446-3} 57-0 05-80 || 537-2 . 459-7| 57-9 0 17-84|| 535-1| 57-1 | 438-5) 57-9 08-61 || 535-0 . 463-4| 57-7 0 19-12|| 547-8| 57-7 | 434-7) 58 7 08-16 || 541-9 : 449-8| 57-5 0 19-07 || 560-6| 58-4 | 437-2) 59-4 09-06 || 542-6 : 449-5) 57-5 0 16-62 || 562-0} 59-0 || 466-1) 60-0 0 0 0 0 0 0 0 0 19-53 || 539-6 : 455-7| 60-0 07-67 || 538-4| 60-1 | 453-0} 60-2 17-98 || 541-7 . 464-1} 60-8 | 12-98 || 539-3 . 483-0} 61:3 10-90 || 546-1 5 479-5) 61-5 25 07-07|| 534-5] 59-8 || 454-2) 59-8 08-50|) 535-2| 59-3 || 456-7| 59-0 S44 wehbe sosssussnee Himddddde | WwW 0 W 0 WwW 0 WwW 0 WwW 0 Ww 0 WwW 0 H 0 H 0 H 0 H 0 H 0 D 0 D 0 0 0 D 0 0 D ty) 10-27 || 547-6| 60-8 || 473-1] 61-5 15 0 09-66 || 532-9| 59-1 || 459-8) 58-8 || D 0 10-03 |) 551-3) 60-8 || 464-9| 61-5 16 0 07-60 || 534-3] 58-7 |) 456-9| 58-4 || D 0 09-59 || 548.4] 60-6 || 461-7| 61-0 17 0 07-99 || 536-5] 58-4 || 464-8] 58-2 || D 0 06-29 || 541-3] 60-3 || 465-4] 60-7 18 0 07-13 || 534-3] 58-1 | 465.6] 57-8 || D 0 06-44 || 538-4] 60-0 || 455-2] 60-2 19 0 06-09 || 532-0| 57-8 || 469-7] 57-6 || H ty) 07-37 || 545:3| 59-7 || 450-0 20 0 07-24 | 524-9| 57-7 || 476-1| 57-5 || H 21 0 06-83 || 525-9] 57-5 || 474-8| 57-3 || W 0 07-42 || 543-3| 58-9 || 431-6 22 0 08-82|| 524-5] 57-3 | 475-4] 57-3 | H ty) 05-16 || 540-2| 58-6 || 429-0 23 0 09-94] 524-7| 57-3 || 477-2] 57-6 || H 0 07-42 || 542-1] 58-3 | 435-8 0 0 14-80 | 528-2] 57-5 || 467-6| 58.0 | H ot 14-21 || 539-4) 58-0 || 430-7 Ww ire 17-02 || 531-7| 57-8 | 468-7] 58-3 || H 0 03-40]| 543.5] 57-7 || 418-1 Ww 2 0 18-00| 534-1| 58.0 | 470-4] 58-7 || H 0 04-42 |) 542.7| 57-5 || 428-8 WwW 3 0 16-75 || 533-8| 58-4 || 471-8] 59.2 | H 0 05-38 || 543-8] 57-3 || 439-5 B 4 0 14-73 || 535-5| 59-0 || 471-2| 59-7 | H 0 05-38 || 540-8] 57-1 || 449-0 B 5 0 14-26 || 537-7| 59-4 || 470-6] 60-2 | H ) 06-79 || 530-4| 56-9 || 452-8 H 6 0 10-50 || 542-7| 59-9 || 471-6] 60-5 | W 0 10-18 || 524-5) 56-7 || 450-6 H 740 09-76 | 545-4) 60-2 || 466-9] 60-8 | H 0 13-61 || 524-5| 56-7 || 454-3 H 8 0 09-69}, 546-5] 60-5 || 466-0) 61-0 | H ) 16-99 || 528-8| 56-7 |) 446-0 H 9 0 10-11] 546-3} 60-6 || 462.5| 60-7 || H ty) 18-37 || 538.0| 56-7 || 444-9 H 10 0 10-40|| 539.8] 60-3 || 458-8| 60-5 | H ) 19-55 || 536-9] 56-9 || 446.3 B 11 0 08-70|| 541-9| 60-1 | 458-6) 60-0 | W 0) 17-89 || 536-7| 57-2 || 463-8 H 12 0 07-81] 543-9] 59-8 || 452.5) 59-7 | W 0 16-26 || 537-8) 57-8 || 472-8 B 0 12-22) 548.0| 58-4 || 477-2 B 13 0 || 25 09-05] 544-0) 59-5 || 448-7] 59-3 || W 0 10-20 || 547-5) 58-8 || 476.9 Ww 14 0 08-06 || 538-0| 59-2 || 451-2) 59-0 | W ) 09-59 || 548-5| 59-0 || 468-8 Ww 15 0 07-82 || 537-4| 58-9 || 455-2| 58-5 | W 0 09-22 |) 547-4| 59-3 || 468.6 Ww 16 0 07-74 || 538-3| 58-5 || 457-5| 58-0 | W 0 09-32|| 545-0) 59-3 |) 470-0 WwW Lian 07-74 || 537-5| 58-0 || 460-0) 57-5 | W 0 07-60 || 550-1) 59-3 || 462-1 Ww 18 0 07-24 || 536-5| 57-6 || 463-9) 57-0 | W 0 09-22 || 546-5) 59-2 || 453-4 H 19 0 06-10 || 535-1] 57-2 || 467-2) 56-5 | B 0 09-49 || 545-6| 59-0 || 448-7 H 20 0 06-16 || 533-8| 56-9 || 468-9| 56-2 | B ‘ DECLINATION. Magnet untouched, June 18¢—Sept. 214. BIrILaR. Observed 2™ after the Declination, s—0:000140. BALANCE. Observed 3™ after the Declination, =0-000010. + Extra Observations made. MAG. AND MET. oss. 1845. % Se a I et et 46 Hovurty OBSERVATIONS OF MAGNETOMETERS, AUGUST 27—-SEPTEMBER 2, 1845. Swe | ] Birman. || Batancz. oa Gottingen BIFILAR, BALANCE. ee Mean Time || DEcLINA- | = | 2 -=] Mean Time |} DecuiNna- 28 of Declina- || TION. \| Cor- Thermo-| Cor- Thermo- 2s of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- BE tion Obs. || rected. | meter. rected. | meter. | 5 tion Obs. rected. | meter. || rected. | meter. ||6 Sgn aa | enn) | SeRDiee Mio ue Il aaxesmiv | Neher ee Fiat ae q an ae 27 21 0 || 25 07-57|| 528-4) 56-6 | 469.3) 56.0 | H 0 || 25 11-84 || 540-3] 67-7 || 469-5] 69-1 || H 22 0 | 08-95 | 526-7, 56-3 | 459-9| 56-2 | H 0 || 25 10-09 |) 548-4| 68-6 || 456-9} 69-6 || C 23 0 |} 11-39 || 526-8| 56-5 | 469-1] 56.6 | H 0 || 24 55-33 |) 544-0] 69-0 | 482-6] 69-9 || D 28 0 0} 14-28) 531-0) 56-9 || 459-9] 57-6 || H 0 || 25 04-88 || 543-8} 69-1 || 485-8} 69-8 || C 1 O} 16-25, 536-9| 57-8 || 449-9| 58-9 || H 0 | 07-47 || 534-1} 69-0 || 479-2) 69-9 | B 2 0] 16:15 | 538-0, 58-9 || 449-1} 60-4 | B 0 04-24 || 540-6} 68-9 || 464.2] 69-7 || B 3 0] 14-40 539¢1 | 60-4 || 447-9} 62.0 |-B 0 09-15 || 537-8] 68-7 || 460-1} 69-3 || W 4 0 12:78 538-6| 61-9 || 440-2| 63-5 | B 0 12-35 | 531-4] 68-4 | 402-9] 68-5 || W 5 0 12:06) 543-2| 63-3 || 436-4| 65-0 || B f 6 0} 10-65 | 544-8 | 64-7 || 435-4] 66.2 | W 0 || 25 08-58 || 535-4) 65-8 | 430-9| 65-5 | H 7 0 09-13) 548-0) 65-7 | 453-6] 66-8 | W 0 08-48 || 532-8] 65.4 | 429-8] 65-0 || H s 0 09-35) 553-4) 66-3 || 455-7| 67-1 || W Ot 17-12|| 525-4] 65-0 || 418-1] 64-5 || H 9 0 08-95 || 541-8 66-6 || 467-3) 67-3 || W 0 08-92 || 533-4] 64-7 || 385-3] 64-2 || H 10 0} 09-89 || 544-9| 66-6 || 461-2) 67-3 | W 0 | 10:00 || 535-3} 64-4 || 424.2|} 63-9 | H 11 0 07-87 || 543-8 66-4 || 458-2} 67-0 || H 0 06-73 || 531-8] 64-0 || 448-0) 63-5 || H 12 O07 03-84) 540-2) 66-0 | 446-0) 66-5 | H 0 06-95 | 532-3) 63-8 || 469-5} 63-2 || W | 0 | 06-23 || 526-6] 63-5 || 471-1] 62-9 || W 13. 0 || 25 05-72)| 542-9| 65-7 || 432-3| 65-7 || H 0 | 06-70 || 521-4] 63-2 || 473-8) 62-8 || B 14 0} 06-73 | 539-8} 65-0 | 426-0) 65-1 || H 0 09-12 || 525-4! 63-1 | 469-4) 62-9 || W 15 0 04-71 || 536-9] 64-5 | 435.8] 64-5 || H 0 13-36 || 516-0} 63-2 | 466-5) 63-3 | W 16 0 07-13 || 538-2] 64-0 || 439-8] 63-9 | H 0 14-78 || 529-4] 63-6 || 450-1] 63-9 || W ite, 04) 06-76), 539-3} 63-5 | 444-1} 63-2 | H 0 16-99 || 534-5] 64-0 || 448-1| 64-7 || B 18 0 08-34 || 540-6} 63-0 | 450-6| 62-7 || H 0 17-29 || 542-5| 64-7 | 446-4| 65-7 || W 19 0} 06-74 || 540-6] 62-7 || 456-3) 62-3 || W 0 | 17-10 || 548-2] 65-6 | 453-2) 66-7 || W 20 0 09-20 || 537-0] 62-4 || 457-1) 62-0 || W 0 | 14-38 |, 549-4} 66-6 | 466-9| 67-7 | W 21 0 17-73 || 521-6] 62-1 || 454.4| 61-7 || B 0 | 09-94 || 537-3| 67-7 || 479-8] 68-8 || W 220 16-65 || 536-7| 62-0 | 445-1| 61-9 || W 0 09-46 || 541-3) 68-7 || 466-4; 69-5 || H 23 0 |] 15-47 || 539-0| 62-2 | 447-2) 62.8 || W 0 | 08-01 | 550-0! 69-0 | 459-7} 70-0 || H 29 0 0} 16-12|| 538-3] 62-7 || 447-3| 63.4 || W Ot 01-85 || 550-0] 69.2 || 472-6| 69-7 | H | ital) i 18-13 |) 526-2) 63-3 | 450-6| 64-3 W 0 05-11|} 542-8) 69-0 | 445-9} 69-5 || H Zz 01 21-95 || 557-7] 64-0 || 452-5] 65-1 || W 0 07-84 || 539-1} 68-8 || 455-5] 69-0 || H 3 OT! 22-98 || 560-9] 64-9 | 462-5) 66-0 || W 10 | 04-28 || 539-3] 68-3 || 419-4] 68-3 || B | 2770) 14-87 || 553-3| 65-6 || 477-4| 66-8 | W 0 06-16 || 536-9] 67-9 || 423-2] 67-8 || B 5 0} 12-95 || 560-2} 66-5 | 466-4; 67-6 | B 6 0 || 25 11-51]| 563-5) 67-2 || 460-5| 68-3 || H 0 || 25 06-56 || 536-1] 67-5 || 417-5| 67-2 || B 7 ot 24 51-17 || 549-9} 68-0 | 493-4| 68-7 || H 0 05-45 | 532-9| 67-1 | 415-6| 66-8 | B 8 Of) 25 01-78 )| 548-1) 68-2 || 490-6} 68-8 || H Ot 17-06 |) 525-3| 66-7 | 410-4| 66-3 || B 9 Of) 25 04.08 || 531-9) 68-4 | 461-0) 69-0 || H 0 09-66 || 540-3] 66-3 | 376-6] 65-9 || B 10 0 || 24 45-87) 508-5| 68-4 | 224.5) 68.8 ] H Of) 12-18 || 528-8} 65-9 || 387-0] 65-5 || B 11 0 || 25 00-99|| 538-7} 68-2 || 348-7| 68.5 || W 0 16-41 |) 533-3| 65-5 || 370-4) 65-0 || B 12 0} 09-96 || 541-7) 67-9 || 258-3] 68-1 || W 0 | 12-58 || 532-6} 65-0 | 395-2] 64-5 || H i 0 10-43 |) 526-8| 64-8 || 417-8; 64-2 || H 13 0 || 25 02-08} 531-1| 67-5 || 224-0; 67-6 | W 0 13-22 || 520-3] 64-5 || 428-4| 63-8 || W 14 0 || 24 57-75 |) 529-5| 67-0 || 272-6) 67-1 || D 0 14-55 || 513-3] 64-0 || 433-3) 63-4 || H 15 0 || 25 08-45) 511-0] 66-5 || 328-2) 66-5 || D 0 15-67 || 509-8] 63-8 || 445-3) 63-2 || H 16 0 |i 10-58 || 520-5! 66-0 | 342.5) 65.9 || D 0 17-06 || 515-6} 63-5 | 457-5) 63-0 || H 17 0 | 04-10 || 534-1) 65-5 || 353-5) 65-2 || D 0 || 20-22 || 529-6] 63-3 || 456-6) 62-7 || H | 18 0] 08-28 I 535-5| 64.9 || 379-1] 64-5 || B 0 20-47 || 529-5] 63-0 | 476-6| 62-6 || H } 19 0 11-71 || 526-5| 64-3 || 414-3) 63-7 |) B 0) 19-02 || 524-9} 63-0 || 520-6) 62-6 || H | 20 0 15-11) 509-9} 63-8 || 417-2| 63-0 || B 0 | 16-32 || 542-0] 62-9 || 537-5] 62-6 || H 21 0] 15-94 |) 506-4] 63.4 | 443-5| 62-6 || H ot 08-82 || 537-1| 62-9 || 553-9] 62-7 | HP 22 0 | 13-43 |) 521-4!) 63-0 | 452-0) 62.6 | H 0 | 10-60 || 535-5| 62-9 | 520-7| 62-5 | B 23 0 12-38 | 528-9) 63-0 || 466-9) 63-0 || H 0) 08-19 || 544-6| 62-7 | 512-3) 62-3 | BY} 30 0 0} 16-65 || 523-4) 63-2 | 469-1] 63-7 || H 0 | 05-06 || 538-0} 62-5 | 518-8} 62-0 || B 1 too. | 16-41 || 527-1, 63-8 | 471-5| 64-7 || H OF, 00-47 || 536-1} 62-3 | 486-9] 61-7 || Bi oy] 16-93 || 536-6| 64-6 | 479-8) 65.8 | W OF, 04-17 || 541-6] 62-0 | 4218] 61-4 | B 3 0 | 17-33 || 525-9) 65-7 | 493-9) 66-9 || W 0 | 05-43 |) 532.4| 61-7 |) 451-8; 60-9 || Wi 4 0 09-89 || 539-7! 66-7 | 497-7| 68-0 | H 0 | 09-46 || 551-8! 61-3 |) 400-7] 60-2 DECLINATION. Magnet untouched, June 184—Sept. 214. BIriLar. Observed 2™ after the Declination, k=0:000140. BALANCE. Observed 3™ after the Declination, =0:000010. + Extra Observations made. Aug. 294 10304 10h, Term-Day Observations made. Hourly OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 2—8, 1845. 47 Gottingen BIFILAR. BALANCE. % | Gottingen BIFILAR, BALANCE. 2 = Mean Time || Decurna- P= | Mean Time || Drcrina- eS of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-|| 2°3 | of Declina- TION. Cor- |Thermo-/ Cor- |Thermo-|| 3 “2 tion Obs. rected. | meter. || rected. | meter. ||5'~] tion Obs. rected. | meter. || rected. | meter. Ss 4 ee ae Se. Div. : Mic. Diy.} ° aohomile « Se. Div. ° Mic. Div.| © 213 0 || 25 07-20) 534-0} 60-7 || 405-7| 59-5 || W 4 21 0 | 25 08-03 | 521-8] 55-3 || 490-1} 55-3 || W 14 0 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 0 11-72) 5384-3} 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 0 0; 16-82) 533-4] 55-8 || 469-0] 56-4 || H 17 0 06-06 || 536-1} 57-8 || 461-6] 56-1 || W : 1 0 18-54 | 534-2) 56-1 || 474-1] 56-8 || H 18 0 05-23 |) 537-2] 57-2 || 473-3] 55-4 || W 240 | 17-80 | 541-2] 56-6 || 482-5| 57-4 || H 1g. 0 05-32 || 531-2} 56-5 || 490-0) 54-8 || B 3 0} 14-62 || 543-9} 57-2 | 490-6} 58.0 || H 20 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 FeO 09-19 || 543-9} 59-0 || 485-5} 59-7 || H a 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 a Oo 20-11 || 538-1] 55-9 || 512-4; 56-4 | B 10 0 07-76 || 537-3} 58-8 || 471-7] 59-0 || H 3 0 21-19|| 550-6] 56-7 || 530-7] 57.4 || B 1l 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 me. 'O 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 10 Of 04-51 || 541-3} 59-4 |) 485-2! 59.7 || W TARAO) || 08-06 || 533-9] 55-3 || 478-1} 54-3 || W ‘ata 8) 08-43 || 539-3] 59-1 || 474-3} 59-3 || H 18 0 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 0} 06-23 || 529-6] 54-1 || 489-6] 53-0 B 20 0 07-11 || 524-7| 53-7 || 491-7] 52-5 B 13 0 || 25 08-86 }) 538-7} 58-4 || 467-1} 58-5 || H 21 0 07-57 || 524-1] 53-2 || 484-6) 52-2 || H if 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 1; 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 16 0 08-95 || 536-0) 57-5 || 469-6| 57-5 || H 6 0 0} 17-71 || 526-8! 52-7 || 479.3} 52-5 B ity) 07-47 || 532-3] 57-3 || 474-3] 57-1 || H Den8: | 18-40 || 528-8] 52-8 || 477-2| 53-0 || H 18 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 19 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 0 11-49 | 526-6] 56-5 || 469-1| 56.2 || W 4 0 12-42 || 540-0; 54-6 || 505-8} 55-4 B 21 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 700 05-49 || 543-9} 56-4 || 500-0| 57-0 || W 0 0 18-67 | 520-6] 56-4 || 483-3] 56-8 || W 3:0 07-10 || 544-7] 56-6 || 495-7} 57-2 | W i 0 18-50) 530-6] 56-7 || 483-1] 57-3 || W 9 O 09-96 || 542-8] 56-6 || 486-7] 57-1 || W ZO 17-26 || 539-0} 57-0 || 496-6| 57-6 || W 10 0 09-46 || 541-1] 56-6 || 480-0} 57-0 | W 3 0 14-78 || 543-3) 57-3 |) 513-5] 57-9 || W 1100 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 0 11-55 || 535-7| 57-7 || 539-0) 58-3 || W 6 0 09-44 || 536-8] 57-9 || 526-9] 58-4 || H 7 13 Ot} 25 22-00 | 526-6] 54-9 || 456-3] 54.7 B 7 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 a, 10-72 || 541-4) 57-8 || 488-1] 58.2 || H 15 0} 07-47 || 530-4} 54-1 || 400-7] 54.0 B 3)°0 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 Uf. 10; ,| 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 0 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 0O 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 21 0 | 11-57 || 510-8] 52-1 | 485-8] 51-7 || W 14 0 07-71 | 538-2] 56-8 | 441.0] 56-7 || B 22 0) 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 0 | 15-64 |} 518-4} 52-0 || 479.6] 52.2 || H 16 0 11-71) 539-4) 56-3 | 454-1| 56-2 || B 8 0 0 | 17-89 | 521-5} 52-3 || 473-1} 53-0 || H 17 0 08-12]! 534-7! 56-1 | 466-9| 56-0 || B L510}, 18-87 || 522-9] 52-9 || 483-0] 54-0 || H 18 0 06-71 | 534-3} 55-9 | 481-0) 55-7 || B 2710 17-04 || 531-7] 53-7 || 496-8} 55-0 | H 19 0 06-86 || 534-3] 55-7 | 482-7! 55.5 || H 3.0] 17-33 || 537-9) 54-5 | 502-7] 55-8 || H 20 0 07-07 | 527-41 55-5 | 489-0] 55-4 || H 4 01 16-35 ' 535-8! 55-5 | 504-4! 56-7 || H DECLINATION. Magnet untouched, June 184—Sept. 214, Biritar. Observed 2™ after the Declination, —0:000140. BALANCE. Observed 3™ after the Declination, =0-000010. + Extra Observations made. - 48 Hovurty OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 8—12, 1845. 8s 5 BIFILAR. BALANCE. Gottingen BiFivar. BALANCE, Mean Time || DEcLINa- of Declina- TION. Cor- |Thermo-|| Cor- tion Obs. rected. | meter. |) rected. Gottingen Mean Time || DECLINA- of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- tion Obs. rected. | meter. || rected. | meter. || Observer Initial. Observer's Initial. | Se. Diy. a Mic. Div. 543-1| 56-6 || 457-8 546-1| 56-3 || 448-7 539-6| 55-9 || 458-3 | 540-6| 55-6 | 452-6 536-1| 55-3 || 457-1 | 540-5| 55.0 || 454.2 | 541-3] 54-8 | 456-0 534-3| 54-5 || 458-1 | 531-1] 54-3 || 459-3 526-5| 54-1 || 462-5 524-7| 54-1 || 460-9 524-1| 54-0 || 455.0 530-5| 54-1 || 452-2 531-2] 54-4 || 452.6 535-3| 54-8 || 476-2 537-8| 55-3 || 492-9 539-7) 55-8 || 490-3 543-9| 56-4 || 476-3 547-5| 56-8 || 466-0 | 548-9| 56-9 || 468-4 544-6| 56-8 || 474-4 | 543-2| 56-7 || 465-8 546-1| 56-5 || 456-6 | 544-1! 56-3 |) 447-8 Sere Se. Div. ° Mie. Div. 25 12-98 || 546-8| 56-4 || 501-9 12:06 || 542-9| 57-4 || 506-6 10-77 |, 549-4} 58-0 || 493-0 10-45 | 545-6| 58-4 |) 481-9 09-15 || 545-9} 58-5 | 476-1 10-20 || 544-6} 58-4 |) 469-8 08-82] 543-9} 58-2 || 463-5 07-71 || 544-9} 58-0 || 461-1 cococooos 07-31 | 541-7} 57-8 08-36 || 543-1} 57-6 05-52 || 539-5] 57-4 05-09 | 539-3) 57-3 07-31] 541-0} 57-1 07-02} 540-8 06-73 || 541-8 07-00 | 535-8 09-03 | 530-2 10-38 |, 11-35 15-18 15-34 13-93 12.78 11-14 09-87 09-30 07-91 04-28 07-58 09-49 11-17), 09-13 — _ 541-5 . 446-0 543-0 : 447-4 543-3 : 445-5 545-1 5 437-2 547-1 : 418-1 547-4 : 406-3 534-5 . 418-7 535-5 : 434.2 531-6 . 432-1 525-5 . 453-7 3] 518-9 : 458-5 | 524-5 oi 460-0 531-7 : 445-3 541-3 : 458-9 542-0 : 472-0 533-3 . 484-4 544-8 : 499-9 536-7| 60- 498-6 543-8 : 487-9 542-8 D 489-0 539-2} 60- 476-6 540-3 | 60- 469-1 541-2 : 463-7 541-5 9: 455-6 ecococococeceococecoceoceos 15-81 10-07 08-82 07-24 06-46 05-92 05-99 05-76 06-56 08-65 | 11-17 13-86 | 15-62 15-09 | 13-86 11-08 10-13 || 541-8 10-16 || 543-6 10-36 || 544-0 10-01 || 544-8 09-96 | 544-1 09-76 || 543-6 09-46 || 542-1 09-12! 542-1! 56-9 0 0 0 0 0 0 0 0 0 0 0 12 0 ty) 0 0 0 0 0 0 0 0 0 0 0 552-8 : 435-7 543-2 : 419-2 534:5 . 429-5 535-5 : 439-6 537-6 : 441-2 538-8 je 445-9 536-0 5 452-0 ‘ | 528-5! 56- 456-1! 55-3 DOM Mnnindddddd ede een Hidde dddowwonon medidas gdeowmdn | Site ttt tt tk fd tk Sk hk ft cocoocooooooocoooococececece oooococoo DECLINATION. Magnet untouched, June 184—Sept. 214. Birizar. Observed 2™ after the Declination, k=0:000140, BALANCE. Observed 3™ after the Declination, k=0:000010. Sept. 10214", Declination magnet oscillating through 13’. Hovurty OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 12—18, 1845. 49 Géttingen || BIFILAR. BALANCE. 5-3 Gottingen || BIFILAR. BALANCE. su Mean Time |) Decuina- | | - > =| Mean Time || Decrina- -|| 2 is of Declina- || TION. Cor- |Thermo-| Cor- |Thermo- 25 of Declina- TION. Cor- |Thermo-| Cor- |Thermo-|| 9 “= tion Obs. || rected. | meter. || rected. | meter. || 5 tion Obs. rected. | meter. || rected, | meter. || 5 ’~ | |——— —— i -| come. m. || /° - * Se. Div. ° ‘|| Mie. Div. Red douse tune By ay || Se. Div. 2 ||Mic. Div. 2 12 21 3 | 25 12-78] 523-7| 55-7 || 461-6/ 55-0 B {16 5 0} 25 10-38] 539-7] 55-9 || 466-0} 57-0 || W 22 0 09-77 || 526-4] 55-4 | 458-1] 54-8 ] W 6 0] 09-10 545-0] 56-4 | 459.2] 57.5 || H 23 0 12-95 || 526-5] 55-1 || 454-7) 54-8 | W 7 0] 09-49 || 547-0| 56-7 || 456-6) 57-5 || H 13 0 0 15-98 || 526-8} 55-0 | 453-3| 55-0 | W 8 o| 09-08 || 549-4] 56-8 || 449-6] 57-5 || H im 40 18-47 || 534-2| 55-2 | 454-2) 55-4 | W 9 0] 08-46 | 547-5) 56:8 | 451-5) 57-5 | H 2 0 17-26 || 533-5| 55-5 || 461-8} 55-8 | W 10 0 | 04-12 || 538-8] 56-6 || 460-5| 57-2 || H 3 0 13-52) 541-1| 55-7 || 469-0) 56-2 | W 11 0] 08-08] 541.5] 56-4 |) 452-3] 56-8 || B 4 0 11-14] 544-7] 56-1 || 467-0) 56-5 | W 12 0} 07-71 || 541-7] 56-1 || 447-6} 56-5 B 5 0 09-49 || 549-7! 56-4 || 468-6| 56-9 | W | 6 0 08-80 || 537-8] 56-7 || 471-2} 57-2 | W 13. 0 || 25 07-07|| 541-1] 55-8 || 444-7} 56-1 || B 70 || 09:73 || 545-7| 57-0 460-8| 57-3 | H 14 0] 07-55 || 538-0] 55-6 | 448-0| 55-8 | B 8 0 09-05 || 553-9] 57-0 | 462-4) 57-8 | H Ion, 0 | 06-24 |) 539-1] 55-3 || 447-0] 55.5 B 9 0 03-57 || 531-8] 57-0 | 465-1) 57-5 || H 16 0} 06-41 || 539-0] 55-0 || 446-5] 55-1 | B 10 0 08-88 || 540-3] 57-1 | 458-1) 57-5 | H 17 0 || 09:39 || 540-1] 54-8 || 447-5] 54-8 | B 1l 8 08-93 || 540-2) 57-1 || 460-0) 57-5 | B 18 0 | 07-42 || 542-4] 54-5 |) 446-1] 54-5 || B 12 0 09-02|| 539-9) 57-0 || 458-6] 57-3 | B 19 0] 07-67 || 540-3} 54-2 |) 451-4| 54-3 || H | 20 0] 07-51 || 535-0] 54-0 |) 453-9] 54-1 || H 14 13 0 || 25 09-89|| 535-2] 57-0 || 450-5] 56-2 | W 21 0 09-00} 529-2] 53.9 || 457-3) 54-0 || W 14 0 08-85 || 535-9| 56-4 | 444-3) 55-5 | W 22) 50 11-91 || 523-5] 53-8 | 453-7) 54-0 || H 15 0 08-03 || 536-3] 55-7 || 450-6| 54-8 || W 23, 70 13-49 | 523-6] 53-8 || 452-1] 54-2 | H 16 0 07:94 || 535-2] 55-0 || 455-5} 54:0 || WJ] 17 0 O 16-93 || 529-3| 53-8 || 439-8] 54-5 || H 17 0 07-94) 535-3} 54-3 | 455-1) 53-0 || W ibe (Om) 19-10} 531-5] 54-0 || 446-3] 54-7 || H 18 0 07-64|| 536-4) 53-6 | 455-0} 52-2 | W 20 18-34 || 534-0] 54-2 || 454-9] 55-0 || H 19 0 07-31 || 536-0} 52-9 || 461-0) 51-3 B 300 15-99 || 540-8} 54-3 |) 459-7] 55-2 || H 20 0 07-65 || 532-8] 52-2 || 468-6] 50-5 || B 4 0 13-05 || 545-2] 54-7 || 470-7| 55-5 || H PI) 08-14|| 529-8} 51-7 || 474-8] 50-2 || H 5 0 10-31 || 543-0} 55-0 || 479-4| 55-7 || H 22 0 09-82 || 526-0} 51-2 | 476-2) 50-2 | H 6 0 10-09 || 543-8} 55-3 |) 480-8] 56-0 ] B 23 0 11-89 || 522-9) 51-0 | 468-5) 50-4 || B ie) 10-14] 545-8] 55-6 |] 473-8] 56-3 ] B 15 0 0 13-05 || 529-8} 51-2 || 469-6] 51-3 | B 8 0 11-17 || 545-7] 55-9 || 473-7) 56-5 || B 0. 14-89 || 535-4) 51-8 | 474-1] 52-5 | H 9,20 10-13 || 543-4] 56-0 || 472-3) 56-7 || B De a0 14-20 || 539-0| 52-6 || 478-8] 53-5 | H 10 Of 10-80 || 555-3| 56-2 || 456-6} 56-8 | B 3.0 12-04 || 539-9| 53-3 || 481-6] 54-4 || B il OT 25 01-45 || 535-0} 56-4 || 447-2) 56-8 | W 4 0 10-06 || 541-0} 54-0 | 480-6] 55-2 || H 12 Of|) 24 49-10) 530-4] 56-5 |} 410-8| 57-0 || W 5 0 09-06 || 542-7) 54-7 || 474-4) 55-7 | H 6 0 09-12} 543-6] 55-3 || 467-7) 56-2 || W 13 Of|| 24 56-16} 506-5] 56-6 || 339-6| 57-3 | W 7 0 09-56 || 545-7| 55-7 || 463-5) 56-4 || W 14 Of) 25 00-40 || 525-0] 56-8 || 239-0] 57-5 || W 8 0 09-57 || 544-6] 55-8 || 459-6) 56-4 || W 15 0 08-95 || 533-2} 57-0 || 316-1} 57-6 | W 2°70 09-42] 542-5) 55-7 || 457-3) 56-2 || W 16 0 06-50 || 538-7} 57-0 || 400-0} 57-5 || W 10 0 09-22 || 542-4] 55-6 || 455-9| 56-0 | W Lt? 20 | 06-81 538-9| 56-8 || 424-3) 57-2 || W 11 0 09-00 || 542-9} 55-3 || 454.5] 55-7 || H 18 0 04-28 || 545-4) 56-6 || 427-9) 57-0 || W 12 0 08-58 || 543-3] 55-0 | 453-8) 55-4 | H 19 Of 06-70 || 540-6| 56-4 |) 424-3) 56-7 || B 20 0 13-79 || 517-8| 56-2 || 425-9] 56-4 || B 13 0 |] 25 08-43 || 542.2) 54-7 || 453-0] 55-0 | H 21 Of 23-38 || 523-0) 56-1 || 402-8) 56-4 || H 14 0 08-31 || 542.2] 54.4 || 452-8] 54-6 | H 22 0] 17-31 || 524-0] 56-0 || 407-9} 56-5 || H 15 0 09-66 | 540-2| 54-0 || 457-0} 54-2 | H 23 «(0 | 13-16 || 530-2} 56-1 || 416-9} 56-7 } H 16 0 07-27 | 542-1] 53-7 || 451-0| 53-6 | HJ} 18 0 0} 14-13 || 529-7] 56-3 || 422-0! 57-2 | H Wee) 08-01 || 537-9| 53-3 || 453-2] 53-0 | H 1 0} 17-96 || 539-2} 56-8 || 426-4! 57-5 | B 18 0 08-82] 540-4) 53-0 || 452-1] 52.5 | H 2 0} 15-51 || 536-1] 57-0 | 434-5| 57-7 | H 19 0 07-99) 538-4| 52-6 || 458-1) 52-1 | W sie 0) 15-20 || 528-0| 57-2 || 449-7| 58-0 | B 20 0 08-23 || 534-6| 52-3 || 462-7] 51-7 |] W 4 0 12-78 || 531-6] 57-5 || 454-9) 58.3 | 21 0 09-26 || 530-3) 52-0 || 465-9] 51-5 | B 5 0 10-75 || 538-3) 57-8 || 460-5) 58-5 || B 22 0 11-34 || 526-6) 51-8 || 467-0] 51-4 | W 6 0 09-62 || 541-9} 58-0 || 460-9] 58-7 || Ww 23 0 13-34 || 528-7) 51-7 || 461-1) 51-9 | W 7 0 08-97 || 542-3) 58-1 456-2] 58-7 | Ww 16 0 0 15-96 || 532-4] 52-1 || 455-1) 52:8 | W 8 0 09-62 |) 543-0) 58-1 |} 450-0) 58-6 || Ww V0 18-01 | 537-9| 592.7 || 450-3|) 53-7 | W 9 0 09-53 | 542-0) 58-0 | 445.7] 58-5 | Ww 2 0 16-38 | 541-6| 53-4 | 457-8) 54-6 | W 10 0 08-73 | 540-4) 57-9 || 445-3) 58-3 || W 3.0 | 14-26 || 540-6| 54-3 || 468-8] 55-5 | W 1l 0 07-67 || 540-8| 57-7 | 442.4| 58-0 || H 4 0 12-28 || 536-2! 55-2 || 469-9! 56-4 | W 12 0 05-72 || 540-0| 57-4 | 431-2) 57-7 | H 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. Sept. 14418», A very minute insect seen on the north cross-plate of the balance magnet. MAG. AND MET. oBs. 1845. 50 Hovurty OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 18—24, 1845. Gottingen Birizar. BALANCE. |e _: | Gottingen BIFILAR. Denner < 3 Mean Time || Decrrna- ||— | 2-2] Mean Time || Decrina- 28 of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| $°¢ | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°35 tion Obs. || rected. | meter. || rected. | meter. |S '*] tion Obs. rected. | meter. || rected. | meter. || 5 ~ 2d. mall *hintiw NiSeDin o |IMic.Div.| ° — | & AB. om. pee Se. Div. ° Mic. Div.| ° 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 23200 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 0 14-46 || 528-0} 51-2 || 450-6] 50-7 || W ra 70 09-33 || 528-2} 56-3 || 385-2} 56-2 || H i * (0) 17-61 || 532-4} 51-2 |) 444-1] 51-0 || W 18 0 06-56 || 545-4| 56-0 || 386-8] 55-8 || H 2e50) 17-17 || 537-T| 51-3 |) 451-1] 51-2 || W 19 0 11-68 || 532-0) 55-8 || 400-0] 55-5 || W 3 0 15-24|) 541-6] 51-4 || 457-7) 51-5 || W 20 0 12-80 || 526-2] 55-5 || 415-5] 55-2 || W 4 0 13-44 || 542-2] 51-6 || 458-9] 51-7 || W Bie 0) 10-97 || 534-1] 55-1 || 405-4) 54-8 | B 5 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 DonenO 14-48 || 522-2| 54-7 || 421-4] 54.4 || W a0 11-24 || 544-7| 51-7 || 453-6] 51-6 || H 19 90) <0 17:09 || 525-1| 54-6 || 426-5] 54-7 || W 8 0 10-87 | 545-7} 51-5 || 448-6] 51-3 || H 1 O 16-46 || 530-4| 54-7 || 432-7] 55-1 || W 9 0 10-74 || 544-4] 51-3 || 448-3] 51-0 || H 2.0 17-93 || 537-8| 55-0 || 443-2) 55-6 || W 10 O 08-99 | 542-6] 50-9 || 447-9| 50-5 || H ee s(t) 16-39 || 534-4] 55-6 || 463-5] 56-3 | W 1l O 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 5.0 12-83 || 541-1} 56-6 || 486-9 57-3 || W G40 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 v 0 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 ot 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 Ot 24 59-09|| 538:3| 56-8 || 429.6) 56-8 || H 1220 09-53 |) 541-6] 47-3 || 457-8| 45-9 B 11 0 || 25 05-77|| 525-3] 56-6 || 433-8] 56-5 || B 18 0 09-22 | 542-3] 46-7 || 459-0] 45-2 || B 12 0 07-67 || 535-4| 56-3 || 431-6] 56-0 | B 19 O 08-82 | 540-9} 46-1 || 465-8] 44-7 | H 20 0 07-87 || 536-8| 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)5'0 09-08 | 535-8} 55-4 | 446-3} 54-8 B 22) 60 07-76 || 526-0} 44-7 || 470-2| 44-0 |} H ibe 18] 09-13 || 535-1} 54-8 || 450-6] 54-0 || B 23 0 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 17 O 06:46 || 534-6] 53-5 || 451-8] 52-3 B i 0) 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 0 16-55 || 537-5| 45-5 || 456-6] 46-2 || H 19 0 11-27 || 539-7} 52-2 || 451-7] 50-8 || H 3 0] 15-24 | 540-4] 46-1 || 462-2) 47-0 || H 20 0 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 0 11-59 || 521-5] 51-3 || 463-7] 50-0 || W 5 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 O 10-40 | 521-2) 50-9 || 469-0| 50-3 || W 7% 0} 11-17 || 549-7] 48-7 || 458-7} 49-1 B 2p 0) 10 13-52|| 521-3} 51-0 || 463-9] 51-4 | H 8 oO} 10-74 | 548-4] 48-9 || 455-8} 49-2 B 1 0 14-91 || 524-4] 51-6 || 437-7| 52-2 || H 9 0] 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 OO} 10-87 | 546-9} 48-5 || 447-2) 48-6 B 30 14.67 || 534.5| 52-7 || 455-8] 53.7 || H 11 0] 10-65 || 546-3] 48-2 || 444.8] 48.2 || W 4 0 13-25 || 535-1] 53-3 || 469-2] 54-5 || H eye ti) 08-95 | 551-9} 47-8 || 436-1] 47-6 || W 5. (0 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. 0 || 25 09-19) 550-2] 47-4 || 439-6] 47-1 || W 7 OM 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 oO] 09-82) 543-4] 53-9 || 449.5) 54-5 || B 15 0 08-26 | 546-0| 46-5 || 443-0! 45-9 || W 9 0} 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 ot) 04-22 || 540-0} 53-9 || 457-9] 54-6 B WG ea} 09-02 || 546-6| 45-5 || 437-5| 44-7 || W 11 0| 01-78 || 527-8) 53-9 || 443-3) 54-7 |) WwW 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 O 05-23 || 546-8] 44-5 || 421-7} 43-5 B | 20 0 06-27 || 541-4} 44-0 || 427-9] 43-0 || B 21 13 0 || 25 08-66 || 539-1| 55-0 || 431-5) 55-2 || H 2iy 60 07:47 || 541-6] 43-7 || 440-2) 42-9 || H 14 0O | 11-71 || 537-9| 54-7 || 433-6] 54.7 i H 22-0 09-05 || 526-1] 43-5 || 447-4] 43-2 || H 15 0] 08-56 | 539-6 54-2 || 431-4] 54-0 || H 23° 0 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 17 0|| 07-71|| 539-2| 53-3 | 437.0| 52-6 | H 1 0|| 18-84] 533-3] 44.9 | 451-9] 45-8 || H 18 0 08-14 )} 539-0| 52-9 i 440-8| 52-1 H 2) 0))|| 18-67 || 546-3] 45-8 || 442-8) 46-8 B 19 5 | 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 0} 06-90 || 536-0| 52-1 || 449-4] 51-1) W 4 0 14-01 || 543-4| 47-6 || 455-3) 48-7 H DECLINATION. Torsion removed, Sept. 214 22} + 19°.* Effect of + 10° of torsion = —0/-84. BirrLar. Observed 2™ after the Declination, s—=0:000140. BALANCE. Observed 3™ after the Declination, s=0-000010. Sept. 204 26». The floor of the Observatory washed : doors open throughout the day. * Sept. 214 22}, 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 torsiun could have been thus introduced. + Extra Observations made, Hovurty OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 24—29, 1845. Gottingen Mean Time || DECLINA- of Declina- TION. tion Obs. 25 12-75 11-57 11-25 11-10 10-95 10-80 10-13 10-77 ccooosoooco 01-01 59-09 57-51 53-38 01-61 11-74 17-84 12-82 19-04 16-15 17-42 16-08 21-83 23-34 19-24 21-59 17-63 07-99 07-15 12-26 09-26 56-40 07-81 07-71 oO 0 0 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 33 0 09-84 08-08 05-79 14-13 12-76 09-42 15-07 11-14 12-58 11-54 12-85 17-53 16:79 15-58 14-48 14-77 09-57 11-48 10-60 09-93 08-16 10-09 10-53 11-07 escooceccoococescoocoooocooooesooeococse BIFILAR. BALANCE. Cor- rected. Thermo-|| Cor- |Thermo- meter. || rected. | meter. Observer’s Initial. Se. Div. 546-5 542-3 545-7 557-7 557-7 555-2 549-4 551-8 539-9 541-9 528-9 530-4 543-7 520-2 517-8 506-6 508-8 528-7 521-5 525-1 524-9 542-1 528-0 525:8 568-9 564-0 540-0 538-7 533-7 544-0 547-7 534-9 534-8 535-5 525-6 518-6 529-8 536-1 523-1 529-7 530-2 530-5 525-5 526-7 532-7 533-0 531.0 532-4 531-6 539-5 544-9 541-1 535-1 536-4 539-0 538-1 a Mie. Div. 48-1 || 452-5 48-6 || 453-9 449-3 441-3 437-4 457-8 442-7 442.4 weeas 435-6 400-4 351-6 278-0 261-1 256-7 297-0 352-9 382-4 392-5 416-4 430-7 448-3 551-5 579-2 519-3 486-4 706-6 554-2 485-6 476-5 453-0 409-0 396-5 385-9 388-4 397-7 382-4 388-0 413-9 420-4 431-3 437-1 435-8 445-4 442-3 442-6 446-9 449.7 465-9 472-8 464-0 455-3 453-5 457-1 451-9 445-0 52-3 || 442-6! 52-2 SSUO OO WOO ees Wess SSeS Sees bh Gottingen Mean Time DECLINA- of Declina- TION. tion Obs. BIFILAR. BALANCE, Cor- rected. Thermo- meter. | | | | Cor- |Thermo- | rected. | meter. 25 11-57 11-08 07-04 | 05-40 09-24 09-47 09-67 09-77 11-41 14-20 17-60 17-63 16-99 15-64 14-85 16-77 07-79 11-37 43-06 57-56 01-21 07-29 16-93 09-57 + + 07-92 08-08 07-52 10-68 09-08 11-57 12-56 11-71 13-50 13-93 15-01 15-61 15-83 14-58 14-17 12-23 08.99 08-75 08-58 06-73 06-39 04-71 06-71 05-85 coooocoocococoecooocoocooccoco : 07-85 06-76 01-88 04:69 09-06 08-59 10-56 11-42 oooocoococoe Se. Div. 542-1 542-1 534-9 532-5 537-4 539-2 541-5 535-0 531-4 522-2 526-0 523-8 528:8 535-6 534-6 541-4 526-2 540-3 555-0 528-9 514-2 536-0 519-6 537°1 533-1 536-7 532-1 534-9 535-1 535°3 538-7 534-2 530-6 528-2 525-3 534-7 535-4 535-8 539-1 541-6 531-6 541-8 544-3 538-0 536-6 533-2 535-2 529-3 524-1 531-0 535-3 538-2 537-6 539-6 538-4 | 537-8 ° | Mie. Div.| 428-0 | 421-5 425-3 426-8 | 431-7 435-7 | | 437-8 | 443-6 445-0 452-1 449-9 450-0 451-1 449.2 | 456.2 462-6 490-5 504-7 487-1 | 485.2 476-6 | 452-0 | 338-8 342-8 420-7 414-9 421-9 424-1 424.0 424.2 | 419-9 431-8 433-1 431-8 435-8 440-0 441-1 449-1 454-7 458-1 462-3 472-6 465-4 451-5 446-0 442.5 431-9 415-9 406-3 391-9 392-2 396-9 410-0 416-6 424-7 | 432-0] 49.8 SOO Oe SSS SS eas 51 Observer's Initial. | =| q eudaddda DecuINaTION. Magnet untouched, Sept. 214—Dee. 294. BaLancr. Observed 3™ after the Declination, s=—0-000010. Birizar. Observed 2™ after the Declination, s=0-000140. + Extra Observations made. Sept 244 10%—2654 10%, Term-Day Observations made 52 Hour.Ly OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 29—OcToBER 4, 1845. Gottingen | BIFILAR. BALANCE. % _ | Gottingen BIFILAR. | BALANCE. % | Mean Time | Deciina- | : T >=] Mean Time || Decurna- > Si of Declina- | TION. Cor- Thermo-| Cor- |Thermo-|| £*z | of Declina- TION, Cor- |Thermo-|, Cor- |Thermo- Ze tion Obs. | rected. | meter. | rected. | meter. Ss Be tion Obs. rected. | meter. | rected. meter. 5 a 2 om. aw | Se. Div. 2 | Mic. Div. J | dad h. mm. e ‘ Se. Div. 2 | Mie. Div. e 29 21 0 | 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 H 22 0| 10-74 || 526-4! 49-8 || 440-2) 49-5 | H 6 0 11-12) 541-2} 53-4 | 449-8} 54-2 | B 23: 0 | 10-70) 531-9 50-0 | 438-6} 50-0 || H io 11-15 || 544-1] 53-5 || 442.4) 54.2) B 30 0 0| 13-81 | 534-6 50-4 | 441-5| 51-0 || B 8 0 10-13 || 544-2) 53-5 | 440-0} 54-1 B a | 16-48 || 535-8) 51-1 || 446-8); 52-0 | B 52"0 09-96 || 543-1] 53-4 | 438-0) 53-9 || Bf 2 0} 16-25 | 537-6| 51-6 || 449-7| 52-3 || B 10 0 10-00 || 542-5| 53-2 || 437-2) 53-7 || B | 3 0) 14-43 539-0 52-0 | 452-9] 53-0 | H 11 0} 10-09 || 542-7) 53-1 || 435-1] 53-4 |) W ] 4 0} 13-09 || 540-5 52-7 | 454-0) 53-5 || H 1260 10-04 || 543-3 | 52-9 | 434.6) 53-1 WwW 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 Wi 7 a!) | 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 15 0 | 10-21 || 542-5) 52.3 || 436-2] 52-1 | W 9 0 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 0} 10-36) 540-6} 52-1 |) 439-4! 52.0 || W je0 10-45 | 541-8) 51-7 || 437-8] 51-4 || W 11 0 | 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 0 09-08 | 538-8] 50-9 | 442-7] 50-3 |) B | 130 | 25 09-42) 539-1} 50-8 | 434-8} 50-3 | H 1G 07-57 || 533-8] 50-6 || 448-5] 50-2 || H 14 0] 09-66 || 538-1| 50-4 || 438-6| 50-0 || H 22-0 09-13 || 526-2! 50-3 || 449-0} 50-0 || H | 15 0] 10-53 |, 537-9] 50-0 | 438-3] 49-7 | H 23'<0 | 11-61 | 527-0} 50-2 || 439-9] 49-8 || H 16 0 12-11 540-9| 49-8 || 431-7] 49-5 || H By Ore 16-36 | 525-4) 50-0 | 433-2) 49-7 || 17 0} 10-30) 539-9} 49-6 || 434-3] 49-2 || H Leo | 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 0 20-15 || 529-5] 49-9 || 439-3) 49-7 || B | 19 0 10-03) 542-8) 49-2 | 439-4] 48-8 || W aMAO 18-57 || 529-4| 49-8 || 447-6] 49-6 || B 20 0} 11-64 | 538-0| 49-0 || 442-8] 48-7 || W 4 0 15-91 || 537-2) 49-8 || 452-0} 49-5 BY 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 | 22 0 |j 09-46 || 526-6| 48-9 | 449-5] 48-9 | W 6 0] 11-75 |) 535-9] 49-6 || 482-6] 49-5 Ww 23 0 14-21 | 527-9| 49-0 || 448-7] 49.3 || W Te8 11-24) 537-5| 49-5 || 472-7} 49-5 || W J) it OM0 16-77 || 522:7| 49-5 || 451-1] 50-0 1 Ww 8 0 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 || W 280 18-00 | 532-0) 50-8 || 453-5} 51-8 | W 10 0 10-48] 543-0; 49-4 || 453-3] 49-4 || W 3 0} 16.63 | 538-1] 51-6 | 455-5] 52-5 | W 110 09-08 || 540-6} 49-3 || 452-7) 49-5 || H 4 0} 12.82|| 541-1] 52-2 | 472-8] 53-1 || W 12 Ot|| 04-37 || 547-5) 49-3 || 433-1] 49-4 || H 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. 0 || 25 08-41 || 540-3} 49-3 || 432-3) 49-4 || H 7,0} 10-30 | 538-0| 52-9 || 472-3) 53-7 | W 14 OF 18-77 || 550-1| 49-2 || 407-0} 49-4 || H Ff S10 10-01 | 537-7| 53-0 || 465-0] 53-6 || H 15) 0 08-16 || 540-8} 49.2 || 414-0] 49.4 || H 9 0 | 08-41 |, 540-5| 52-9 | 455-7) 53-5 | H 16 0 08-46 || 542-1] 49.2 || 424-1] 49-2 || H 4 10 0 | 05-76 || 536-9) 52-8 || 441-8] 53-3 | H 170! 08-97 || 543-9] 49-1 | 427-9} 49-1 || H | 11 0} 08-45 || 540-7| 52-7 || 443-9] 53-2 || B 18 0 08-48 | 542-0} 49-0 | 432-9] 49-0 || H 12) 0 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 210 08-21 || 536-3) 48-6 || 445-5) 48-3 || B | 14 0! 08-45 | 537-3| 52-3 | 409-8| 52-7 || B 22 0 | 08-85 || 532-2} 48-5 || 446-8] 48-3 || WH T5ea0"| 08.48 | 539-0; 52-2 | 410-0} 52-5 || B 23 0 12-16] 529-8} 48-4 || 439-7| 48-3 || W 16 0 13-90 || 551-1) 52-1 | 396-1] 52-4 B 4 0 0O| 14-82 || 529-2] 48-4 || 436-3} 48-5 || W ] 17250 11-37 || 540-2; 52-0 | 408-7] 52-2 || B ee) 16-19 || 526-1] 48-6 || 433-5| 48-7 18 0 10-72 || 544-1] 51-9 || 419-3] 52-0 | B 2 0 16-55 || 532-0} 48-7 || 435.1} 48-9 W 19 0 10-07 || 541-6) 51-7 || 428-5] 51-8 | H 30 16-10 | 538-6] 48-8 |) 441-4| 49-0 || Wf 20 O 08-09 | 540-4) 51-5 || 435-9} 51-5 | H 4 0 13-83 || 539-9| 48-8 || 445.9| 48-9 v1 21> 16: || 09-08 || 534-2| 51-4 | 439-4] 51-3 || W 5 0 12-09 || 541-5] 48.7 || 478-5] 48-7 || WI 22) 10 || 11-17 || 528-0} 51-2 | 439-1] 51-3 | H 6 0 11-10} 542-0] 48-5 || 446-6| 48-6 || H 23 0 || 11-37 || 527-7| 51-2 | 439-2| 51-5 H 70 11-01 || 543-6] 48.3 | 441-7] 48-3 || H 20 0} 16-45 || 537-7] 51-4 | 426-9] 51-7 | H 8 0 10-41 || 543-0} 48-1 || 441-2] 48-0 at] 16-48 || 531-6} 51-7 || 431-4] 52.2) H 9 0 10-14) 543-0] 48-0 | 440-7| 47-7 | 2 0 16-59) 534-1) 52-0 | 435-:0| 52-6 | H 10 0 09-84 || 542-2] 47-8 || 441-4) 47-5 || H | 3 0 15-34 || 536-4] 52-4 | 443-6| 53.2 | H 10 0) 10-03 || 541-9] 47-7 | 443-4] 47-3 || B | 4 0! 13-63 |) 537-6! 52-8 || 452-4! 53-7 | H P2Pe0 10-03 || 541-4! 47-5 | 444-3! 47-0 || B | DECLINATION. Magnet untouched, Sept. 214—Dec. 294, Brrivar. Observed 2™ after the Declination, k—0-000140. BaLance. Observed 3™ after the Declination, k=0-000010. + Extra Observations made. DECLINA- TION. 25 09-54 || 09-29 | 09-86 10-33 09-51 09-60 09-59 09-00 |) 09-08 07-87 11-27 || 14-73 || 18-30 19-28 19-34 16-53 10-70 10-06 || 10-50 07-72 08-93 10-72 10-51 11-61 WNEKSCHIANE WE Wer CeCMDNIANfwnwe oS nde 25 06-73 || 10-16 08-29 08-66 10-09 07-78 08-03 07-60 07-79 | 08-66 11-44 14.82 16-63 16-65 16-13 13-29 11-12 09-12 11-95 10-70 10-16 09-74 09-03 06-06 S) CHONIAMNRWHOHOUNMSOONAR i a : : 4 3 i 5 { oe 25 07-13 06-59 06-84 08-05 07-84 |, 08-66 08-41 07-71 * Se. Div. BIFILAR. BALANCE. Cor- rected. | meter. 47-0 46-5 46-0 45-5 44.9 545-1 543-8 541-7 541-7 542-6 542-0 539-4 533-8 536-7 530-5 526-4 522.3 536-9 549-3 546-8 542-2 541-2 536-0 541-5 536-8 Thermo-| 540-8 545-5 544-7 554-1 544-5 544-0 541-0 541-4 548-1 544.3 542.7 538-5 535-6 529-2 525-8 528-0 532-1 536-1 542-8 546-2 544-2 539-5 543-5 545-4 545-9 540-5 543-7 540-1 541-9 539-6 542-0 542-1 541-5 541-4 541-9 540-6 | 448-8 Thermo- meter. Cor- rected. Mic. Diy.| 436-1 437-5 439-5 441-3 442-2 442.9 444-0 446-2 445-6 447-6 440-7 440-5 440-3 46-5 45-9 461-9 466-6 477-2 484-9 481-7 481-6 470-9 455-5 449-7 431-6 429-6 428-1 433-8 437-2 455-6 438-0 437-5 441-6 442-5 442-6 444-6 440-9 440-3 442-7 445-3 446.7 452-8 456-4 452-4 450-9 446-7 444-8 440-5 433-3 409-0 414-4 422-1 426-6 430-7 433-5 435-8 436-4 Rie indo WWM eee easy ssn hid $eodnemwdeommwe das soe Observer’s Gottingen Mean Time of Declina- tion Obs. sooooeoocooosoooooso dos oooocoococococece oecocooocooco ae SCwwnooworoococoocoosoo Cee) — DECLINA- TION. 25 10-27 12-80 14-60 14:53 14-18 12-95 12-45 11-51 12-26 13-17 11-82 04-82 43-72 53-32 54-01 01-65 00-06 06-73 10-50 10-00 10-03 10-51 12-92 20-77 16.92 18-72 18-94 18-61 17-19 15-39 BIFILAR. BALANCE. Cor- |Thermo-|| Cor- |Thermo- rected. | meter. || rected. | meter. Se. Diy. 3 Mie. Div 2 534-0] 46-6 || 439-0] 46-4 531-4| 46-4 || 439-7] 46-3 529-1] 46-3 || 439-7] 46-3 531-1| 46-3 || 435-2| 46-5 532-1} 46-5 || 436-8} 47-0 536-3} 47-0 || 442-2] 47-6 539-6] 47-6 || 447-2] 48.4 542-6] 48-2 || 451-9] 49.2 544-2} 48-9 || 449-9] 49.7 545-2} 49-4 || 449-4] 50-0 544-9] 49-7 || 447.2] 50.2 544-4] 49-8 || 446-6] 50-1 544:3| 49-7 || 444.0] 50-0 546-8] 49-6 || 437-5} 49-8 551-7 | 49-4 || 429-7] 49-7 548-5 | 49-3 || 422-6] 49-6 542:0| 49-3 || 424.4] 49.6 540-7 | 49-3 || 427-1| 49-6 543-9} 49-3 || 426-7] 49.6 543-9} 49-2 || 425-8] 49-5 543-3 | 49-2 || 427-6} 49.5 540-9} 49-1 || 428-2} 49.5 541:9| 49-0 || 427-6] 49.3 541-6] 48-9 || 434-9} 49-1 539-3] 48-8 || 436-4] 49.0 534:5| 48-7 || 441-7] 48-8 530-2| 48-7 || 429-6} 49.0 532-:3| 48-7 || 437-0] 49.7 535-5| 49-0 || 435-1] 50-3 540-1} 49-7 || 435-7] 50-9 544-6] 50-5 || 437-1] 51-6 546-1] 51-2 || 436-2} 52-2 545-8] 51-9 || 439-8] 52.7 541-9] 52-2 || 436-3] 52-8 547-1} 52-3 || 443-7] 52-8 551-0} 52-3 || 445-0} 52-5 549-4] 52-0 || 449-0} 52.2 536-4] 51-7 || 446-5] 51-7 512-3} 51-3 || 420-3} 51-2 499-1} 51-0 || 236-8] 50-8 496-7| 50-7 || 298-3} 50-6 526-6] 50-4 || 323-4] 50-3 533-1} 50-1 |) 319-5] 50-0 535-2} 49-9 || 372-6] 49.7 536-4| 49-7 || 398-6] 49.4 542-4] 49-4 || 419-2] 49-1 534-3] 49-1 || 435-5] 48-8 537-5] 48-8 || 438-0] 48.5 510-5] 48-6 || 444-7] 48-2 521-1} 48-3 || 436-7} 48-0 528-5] 48-2 || 437-6] 47-9 531-0] 48-2 || 442.2) 48.3 520-3] 48-4 || 460-0] 48-8 531-9| 48-8 || 478-5] 49.3 530-5] 49-3 || 470-3] 49-8 534-9| 49-5 || 465-0! 49-9 ele teofeel=fsef-sfs+ls, Initial. Observer | | Seu d bn nS see eee eS SSetereee Hesesesese Gottingen Mean Time of Declina- tion Obs. coooooococococeouwcoocoocoeooo ocoococoso DECLINA- TION. 25 08-58 08-08 10-11 09-24 09-39 08-41 09-00 08-95 08-61 08-31 09-86 12-45 15-42 15:78 14-26 12-89 11-30 11-12 10-25 10-16 09-10 09-42 09-24 08-80 09-42 09-73 10-03 09-42 09-47 08-06 07-94 07-87 07-58 07-76 09-40 11-57 12-62 13-46 12-65 11-64 11-25 11-07 10-54 09-24 09-42 09-12 59-27 01-75 03-54 06-68 07-49 09-00 08-75 08-82 08-83 08-65 BIFILAR. BALANCE. Cor- /Thermo- rected. Se. Div. 542-8 50-1 49-9 49-7 Cor- |Thermo- rected. Mic. Diy. 420-5 419-8 49-6 49-7 MWe Hodes eee Se Observer’s DECLINATION. Magnet untouched. Sept. 214—Dec. 294. Observed 2™ after the Declination, s=0:000140. BALaNnoE. Observed 3™ after the Declination, s—0:000010. + Extra Observations made. 58 Hourty OBSERVATIONS OF MAGNETOMETERS, OCTOBER 31—NoOvVEMBER 6, 1845. Gottingen BIFILAR. BALANCE. ome Gottingen BIvILaR. BALANCE. Ge Mean Time || DEcLINA- ||| ?-S | Mean Time || DEecLiNna- Pat | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|\ 2 “4 | of Declina- TION. Cor- |Thermo-| Cor- |Thermo-|) 32 | tion Obs. | rected. | meter. || rected. | meter. 5 3 tion Obs. rected. | meter. || rected.| meter. Sia | a h m. i S + Se. Diy. o Mic. Diy. 5 di? eon. os , Se. Diy. es Mic. Div. os ‘ 31 21 O || 25 07-45]| 547-4| 49-4 || 412-0] 49-3 | W 4 5 0O|| 25 12-80}| 542-8} 42-0 || 477-0] 43-2 || Ht Ff 22:10 17-36 || 535-6| 49-1 || 414-4| 49-2 | H 6 0 11-68 || 545-5] 42-7 || 466-6) 43-5 | B 23 0 12-60 || 537-0} 49-1 || 411-3} 49-2 | H 710 10-78 || 545-2} 43-0 || 461-5) 43-7 | B 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 | B 14-0 13-52 || 530-6| 49-0 || 433-3) 49-5 || H 9. OF 05-99 || 535-4| 42-8 || 464-7] 43-3 | B | Dee Oy 15-58 || 531-9| 49-0 || 434-1] 49-7 | H 10 OF 03-45 || 529-7) 42-6 || 449-8| 43-0 | B & 3 0] 14-64 || 533-7| 49-2 || 437-3] 50-0 || H 0: 02-50|| 531-5| 42-3 || 446-2) 42-6 || Wf 4 0 14-87 | 534-6) 49-4 | 457-0) 50-0 | H 127107 05-33 || 545-2} 41-9 || 424-5] 42-1 | W \ 5 Ot 02-82|) 532-6) 49-6 || 474-3] 50-2 || H a 6 Of! 10-23 || 537-2} 49-7 || 481-5] 50-3 | B 13. 0 |) 25 08-14]) 535-8| 41-7 || 406-4) 41-9 | W \ 742 11-71 || 534-9) 49-8 || 469-4} 50-5 || B 4) 0 07-37 || 540-2| 41-5 || 418-8] 41-7 | W i] ‘Saloyl 05-60 || 523-8] 49-9 | 467-1] 50-5 || B 15 0 09-29 || 541-1] 41-3 || 430-7] 41-4 | W [| 9 ot] 25 02-39 || 526-0} 49-9 || 467-2} 50-3 || B 16 0 07-87 || 540-7} 41-0 || 435-2} 41-1 | W i 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 | W i 11 O ||{25 01-73 || 529-6] 49-9 || 446-2] 50-3 || W 18 0 07-87 || 548-5] 40-5 | 431-5] 40-5 | W iF 12; 0 09-73 || 535:5| 49-8 || 433-9| 50-2 || W 19 0 10-30 |) 551-2] 40-2 || 430-3| 40-2 || B Py | 20 O 10-45 || 543-6} 39-9 || 436-4] 39-8 || B F” 213 0 | 25 08-41 || 540-8| 46-7 || 433-1] 46-7 || H 21 0 09-24 || 539-9] 39-7 | 438-6] 39-5 | H | i4 O 10-28 || 541-2) 46-5 || 434-3] 46-5 | H 22 0 10-67 || 528-3] 39-4 | 444-3] 39.4 | H TE SO 17-83 || 544-7| 46-3 | 400-5| 46-5 || H 23) 0 10-97 || 532-9| 39-3 || 442-6] 39-4 | H } 16 OF 06-46 | 544-3] 46-2 || 398-5| 46-4 || H 3) DONO 12-38 || 533-8| 39-4 || 445-9] 40-0 | B 17 0 | 08-59 | 545-9] 46-1 || 406-2} 46-3 || H I 16 14-94 |] 537-9] 39-8 || 444-1] 40-7 | H Fi 18 0] 08-88 || 543-2} 46-0 || 413-1] 46-2 || H 2510) 15-62 || 538-6} 40-5 || 451-6] 41-7 | H {i 19 Of| 12-55 || 545-0| 45-9 || 414-5] 46-0 || W aa 0F 20-77 || 530-4] 41-4 | 476-8} 42-9 | B 7) 20 O | 14-84 || 530-6| 45-8 || 422-1] 45-9 || W 4 Ot 22-47 || 543-4] 42-4 || 518-0] 43-9 | B ' 21° 0 16-35 || 527-3] 45-8 || 437-8] 45.8 | B 5° 10 20-97 || 543-1] 43-2 || 573-1] 44-7 | H fy 22 0 13-41 || 530-9| 45-7 || 433-3] 45-6 || W 6 OF 21-50 || 538-1] 43-9 | 600-6} 45-2 | W J )@ 23. 0 13-29 || 530.6| 45-6 || 435-7| 45-7 || W 7 Ot) 25 12-25 |) 532-3) 44-4 | 618-8] 45-5 | W i | 30° 0 14-10} 530-5} 45-6 | 435-7] 45-7 || W 8 Of|| 24 58-49] 526-7] 44-6 || 478-6] 45-7 | W i Le 20> 15-49 || 533-5] 45-6 | 441-7] 46-0 | W 9 Of) 25 05-32]; 532-5) 44-7 || 536-8) 45-8 Ww 2 0] 15-54 || 537-3| 45-8 || 447-4] 46-3 || W 10 0 09-91 || 538-2| 44-7 || 505-5] 45-7 || W | 3.0 12-82 || 535-1} 46-0 || 458-7| 46-7 | W 11> 70 | 09-59 || 539-5| 44-7 || 477-6] 45-5 || H 4 0] 11-71 || 543-2| 46-5 || 459-6] 47-2 || W 12> 50 10-09 || 540-6] 44-5 || 462-9] 45-5 || H |) 5 0] 11-00 || 542-7) 46-8 || 453-6) 47-3 | W 6 0 10-31 || 542-8| 46-9 || 449.0] 47-4 || W 13. 0 || 25 10-95|| 540-5] 44-5 | 458-1] 45-5 || H 40 10-03 || 542-6| 46-8 | 444.7| 47-2 | H 14 0 11:07 || 539-7| 44-5 || 458-3] 45-5 | H | 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 | H | | Died 07-29 || 542-7| 46-3 || 437-6] 46-2 || H 16 0 11-05 || 543-4] 44-7 || 458-9] 45-7 || H | ORZO 05-27 || 538-0} 45-9 || 439-2| 45.7 || H 17. “0 10-77 || 544-2] 44-8 || 460-1] 46-0 || H | 11, 40 06-61 || 539-0| 45-5 || 426-4) 45-2 || B 18 0 10-47 |) 544-7| 45-0 | 459-0] 46-2 | H | 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 |) W | i | 20 0 09-62|| 545-9] 45-8 || 458.8] 47-0 w | 13. O || 25 07-47 || 540-4] 44-6 |) 432-1] 44-0 || B 20 50 09-22 || 540-1| 46-2 | 461-6] 47-4 || B | 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 || W 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 WwW 1 16 0 jj 10-01 || 539-3| 43-0 || 446-1] 42.2 | B 6..'G 20 12-95 || 531-6] 47-4 || 449-6] 48-8 | W | L740 || 09-39 || 540-4) 42-4 || 446-3| 41-6 | B LEO 13-77 || 532-9) 48-1 | 449-6] 49-6 || W 18 0 | 09-42 || 540-3} 41-9 | 448-8] 41-0 | B 20 13-56 || 537-5| 48-9 || 445-4] 50-4 || WJ 195.40 } 09-03 || 542-5) 41-4 || 449-5| 40-6 | H 380 12-58 || 542-4} 49-7 || 444-0] 51-3 || Wo 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 || W ff 21 0 08-39 || 535-0} 40-5 | 454-1) 39-6 | W 5.0 10-92 || 545-1! 50-8 || 432-4] 52-2 || Wf 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 || H 23 0 11-54) 530-2} 39-8 || 454-0] 39-1 | H Ze 10-13 || 544-7] 51-2 || 424.6] 52-5 || H | 4 00 13-41 || 531-6) 39-7 || 449-1} 39-3 || H 8°70 10-00 || 545-0} 51-4 || 423-0) 52-6 || H | yy) 15-29 || 536-7| 39-6 || 452-8| 39-7 | H 9 “0 09-69 || 542-9] 51-6 || 421-6] 52-6 || H | 2 0 15-41 || 540-6) 39-8 || 464-8] 40-5 || H 10 0 08-90 || 544-8} 51-6 | 419-2| 52-3 || H Bei) | 14-26 || 542-0] 40-4 || 471-5] 41-3 || H 11 O 09-42 |) 545-2} 51-6 | 415-2] 52-6 || B J 40 12-02 || 543-4) 41-2 | 474-1) 42-3 || H L220 10-03 || 543-8! 51-7 || 415-1] 52-7 || BY DECLINATION. Magnet untouched, Sept. 214—Dec. 29*. | BiriLar. Observed 2™ after the Declination, k=0-000140. BaLaNcre. Observed 3™ after the Declination, k=0:000010. | } Extra Observations made. | tion Obs. h. 13 14 515 16 17 18 : 19 20 nat i ange COnNnaoaunkwnreco — woe -_ CONAUHWNHH S or TION. 25 10-09 10-43 10-03 12-18 10-28 08-14 08-34 09-76 13-91 15-31 17-04 17-86 18-35 19-31 17-33 16-48 15-07 14-70 11-68 09-05 08-48 07-82 03-04 04-71 10-07 10-28 11-34 12-31 12-08 11-98 09-29 08-38 08.23 10-21 09-56 09-67 09-22 09-73 25 09-69 10-09 09-56 10-90 09-76 08-65 08-82 09-47 BIFILAR. BALANCE. Cor- |Thermo-|| Cor- |Thermo- rected. | meter. || rected. | meter. Se. Div. 2. Mie. Div. ° 542-0} 51-7 || 413-9) 52.6 | 542-9} 51-6 || 412-7} 52-5 542-8| 51-6 | 413-2) 52.4 543-9} 51-5 || 409-2} 52.3 546-8} 51-5 | 393-6| 52.3 545-9} 51-4 | 399-6| 52.2 548-4| 51-3 || 400-9} 52-2 553-9| 51-3 || 407-8| 52.2 535-1| 51-4 | 417-0) 52.2 528-3| 51-4 || 419-3] 52.1 532-2] 51-4 || 416-6) 52-0 531-9) 51-5 || 420-4] 52.3 532-7| 51-7 || 425-1| 52-5 535-6| 51-9 || 426-9| 592.7 539-0) 52-3 || 435-5| 53.3 539-4| 52-5 || 438-4| 53-5 535-2] 52-7 || 451-3) 53-6 530-3| 52-8 || 468-1| 53-4 531-2| 52-7 || 472-6| 53.2 538-7} 52-6 || 459-3} 53-0 536-5] 52-4 || 450-3] 52.9 539-5| 52-3 || 439-8] 52.9 541-3} 52-3 || 423-3} 52.8 532-8] 52-3 || 419-4] 52.8 542-0) 52-2 |) 407-5| 52.7 540-0] 52-1 || 410-1] 52.6 541-2] 52-0 || 410-8) 52-5 543-8| 52-0 | 411-5] 52.4 540-2} 51-9 || 411-1] 52-3 543-9) 51-8 || 395-1| 52-3 544-3] 51-8 || 403-1] 52.3 540-4} 51-8 || 408-4] 52.3 537-3] 51-8 || 414-0} 52.3 536-4] 51-8 || 415-5] 52-3 534-3} 51-8 | 414-4] 52.3 535-1] 51-9 || 414.9| 52.5 538-4] 52-0 || 416.3] 52-7 540-0| 52-1 || 418-6| 52.8 541-5] 52-2 || 426.9] 53-0 545-0| 52-3 || 427.6) 53-0 543-9] 52-4 || 424.3] 53.0 543-8] 52-5 || 422-8] 53.0 542-1] 52-4 || 422.0| 52.9 543-2} 52-3 || 420.2) 52.7 544.2] 52-2 || 419-1] 52.5 544-4] 52-0 | 417-4| 52.3 543-1} 51-8 || 415-5] 52.0 542-6] 51-6 || 414-0} 51.7 542-6] 47-5 || 425-7| 46.9 542-0| 47-1 || 426-2) 46-5 542-4) 46-7 || 425-8) 46-1 541-9| 46-3 || 428-4) 45.7 543-7| 45-9 || 426-9] 45.3 544-6 | 45-6 | 430-0} 45-0 543-6| 45-3 | 432-4] 45-0 545-0| 45-0 | 432-4| 44.8 Initial. 2 be ° > q 5) a 2 (=) Hid ddhddnW HSS eae e Sere thot aes SSeS Gottingen Mean Time of Declina- tion Obs. 11 pwnNs CONTIGS YPwWNr OWNeH s cococoococoocoocoocoscoos coooocoococococococococooce;$sc coeoococoeocoococecoe DECLINA- TION. 25 25 18-93 11-10 12-96 13-46 13-81 12.45 11-89 BIFILAR. BALANCE. Cor- |Thermo-|| Cor- |Thermo- rected. | meter. || rected. | meter. Se. Div. es Mie. Div. s 541-2) 44-9 || 435-1] 44.7 538-8| 44-8 || 433-8] 44.7 539-4) 44-7 || 432.5| 44.7 542-5| 44-7 || 434.3) 45.0 541-0} 44-7 || 438.2) 45.2 542-9} 44-9 || 441.0| 45.5 545-0} 45-1 || 438-9) 45.7 545-8| 45-4 || 441-6) 46.2 547-9| 45-8 | 443-9) 46-5 543-9| 46-1 || 444.9) 46.8 541-9) 46-3 | 447-3| 47-0 543-2] 46-5 || 447-2] 47-2 543-4| 46-7 || 447.3| 47.4 541-3] 46-8 || 443-7) 47-5 541-3} 46-9 || 434.4) 47-5 542-6) 47-0 || 430-5) 47-7 | 544-8) 47-0 || 417-1| 47-7 550-1| 47-1 || 389.9) 47-8 539-5] 47-2 || 388-8} 47-8 546-4| 47-2 || 385-7] 47-7 543-3} 47-1 | 394.9| 47-7 546-0} 47-1 || 405.0| 47-6 548-3] 47-0 || 408-5!) 47-5 545-7] 46-9 || 410-5| 47-2 540-7] 46-7 || 412-3} 46-9 537-5] 46-5 || 415-6| 46-7 535-1] 46-3 || 416-0| 46-6 536-5] 46-2 || 419-4) 46-6 538-2| 46-4 || 427-4) 47-0 542-5| 46-7 || 433-9| 47-5 544-3| 47-0 || 441-8| 48-0 542-5} 47-3 | 444.0} 48-5 541-5] 47-7 || 442-9) 48-5 542.5] 47-8 || 444.4| 48-5 544:8] 47-8 || 435-4) 48-5 543-9| 47-8 || 433-7| 48-5 544-4| 47-7 || 431-5) 48-3 545-7| 47-6 || 427-8) 48-0 544-4| 47-3 || 421-3| 47-6 543-9} 47-0 || 420-3) 47-2 543-1| 46-7 | 426-5! 46-8 543-8| 46-3 | 425-2) 46-4 544-0} 46-0 | 4256) 46-0 542-3] 45-7 || 427-0| 45-6 541-3| 45-4 | 425-1) 45-2 544-2} 45-0 || 423-0) 44-8 543-8) 44-7 || 427-5| 44-5 542-6| 44-4 || 430-6) 44-2 539-4| 44-1 || 434-3) 43-9 536-8) 43-8 || 435.4| 43-6 535-7| 43-6 || 438-3) 43-4 538-8| 43-6 || 442-4| 43-7 541-7} 43-7 || 443-9} 44-1 543-6| 43-9 | 445-4| 44-6 545-8| 44-3 || 447-1] 45-1 546-2| 44-7 || 445-4| 45-4 Sy bo oy oo oo tt et et Toot Ses Observer's Ww === HSStttttt thes DECLINATION. Magnet untouched, Sept. 214—Dec. 294. _ Biritar, Observed 2™ after the Declination, —0:000140. BALANCE. Observed 3” after the Declination, k=0:000010. t Extra Observations made. 60 Hovurty OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 12—17, 1845. Gottingen | BIFILAR. BALANCE. 2 d Gottingen BIFILAR. BALANCE. % ) Mean Time || DecuiNa- | 2:5] Mean Time || Deciina- Pa of Declina- TION. Cor- |Thermo-| Cor- |Thermo-|| $ ‘4 | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 3% tion Obs. | rected. | meter. | rected. | meter. ||5"~ | tion Obs. rected. | meter. || rected. | meter. | 5 d. oh. m. a uf Se. Div. 4 Mic. Diy. e dG. Seine os z) Se. Diy. is 'Mic. Diy. 3 12 5 0 || 25 10-36) 547-9] 44-9 || 444-5) 45-6 || W | 14 13 0 || 25 10-36|| 545-0} 41-9 || 484.6} 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 7 0 10-87 | 545-9] 45-0 |) 440-9) 45-7 || H 15 0 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 9 0} 09-76 | 546-6] 44-8 | 436-6] 45-2 | H LZ 40 09-56 || 546-1] 40-9 || 431-7] 41-0 | H 10 0} 06-70 | 540-6] 44-7 || 442-4] 45-0 || H 18 0 09-32 || 546-1] 40-7 || 432-1} 40-7 | H LY) | 09-39 | 543-2] 44-4 || 436-9] 44-5 | B 19 0 09-02) 545-7} 40-4 || 433-6] 40-3 | W NP Sea) 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 0 09-15 || 540-5} 39-8 || 439-1] 39-7 | B | 13 0 || 25 09-69 | 541-9] 43-8 || 436-2) 43-5 || B 22) 10 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 d | 15 0) 10-03 || 542-6] 43-2 || 436-5] 43-1 | B | 15 0 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 1 0 12-92 | 542-5] 39-4 || 443.4] 39-9 || WI 17 0|| 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) 10 10-72 || 546-3] 39-8 || 448-4] 40-8 | W 19:0 08-77 || 544-9| 42-0 || 435-2] 42-1 || H 4 0 10-45 || 547-7] 40-2 || 447-6] 41-3 || W J | 20 0 | 09-05 | 544-0} 41-8 || 435-8) 42-0 || H 5. (0 10-58 || 548-7] 40-6 || 444-3] 41-7 | W 21-0 | 09-02 || 541-4] 41-7 || 439-9] 41-7 | W G20 10-27 || 548-8| 41-0 || 442-7| 42.2 | H 22 0| 09-40 || 537-7| 41-5 || 440-8] 41-5 || H (fe) 10-00 || 549-4] 41-5 || 440-3] 42-7 | H 25h alt) 10-41 || 537-5| 41-4 || 441-5] 41-5 | H 8 0 09-53 || 548-8] 41-8 || 437-8) 43-0 | H 13 0 O| 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 0 | 10-80) 541-1] 41-3 || 447-6] 41-9 || H 10 0 09-12 || 547-0} 42-4 || 437-1] 43-7 | H | 250" 12-63 || 543-8] 41-6 |) 451-1] 42-4 | H Lr 10 08-92 || 546-3} 42-8 || 437-9] 44-0 || B 3 11-98 || 545-7 | 42-0 |) 453-4] 43-0 || H 12°90 08-41 || 548-0} 43-1 || 435-9] 44-3 ] B 4 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 O |} 25 08-28] 545-2] 46-2 || 423-3] 46-8 || W 7 6 0} 10-06 || 548-4] 42-9 || 448-4] 43.9 || B 14 0 09-20 || 544-4] 46-1 || 424-1) 46-7 | W 7 0: 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 0 08-50 || 551-7} 45-7 || 414-3] 46-1 | W 10°10 08-95 || 547-1] 43-4 || 441-5] 44.2 || B 18 0 07-74|| 554-5] 45-6 || 412.7) 45-9 | W Wat) 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 | 21-20 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 Of 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 OT 24-12|) 528-1} 45-0 || 411-3] 45-5 || B 15 0 10-06 || 545-5| 43-2 || 437-9] 43-9 || W]17 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 1,0 21-97} 524-5] 45-1 |) 433-4] 45-7 || B 17, <0 08-92 | 544-7} 42-9 || 435-2] 43-3 || W 2: 40 19-02 || 537-5] 45-2 || 442-3] 465-7 || H is 0 09-62 || 546-6| 42.6 |] 433-9| 42.9 | W 19-75 || 548-5} 45-2 || 460-9] 45-8 || H 19 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 0 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 0 09-08 | 541-6] 41-7 || 435-8] 41-6 || H 6) 50 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 Ot|| 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 0 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 la i 13-79 | 542-6| 41-1 || 448-0| 41-6 || B 10 Of 05-82 || 538-5] 45-3 || 455-1] 45-7 | W 270 12-51 || 543-9} 41-2 || 449-8] 42-0 || H 1 30 06-12 || 535-9| 45-0 | 432-2] 45-5 | H | 3 0 11-17 | 543-6| 41-5 || 452-4] 42-4 || B 1250 07-94 || 533-8} 44-8 || 402-7] 45-2 | H | 4 0 10-33 || 544-0} 41-8 || 451-2] 42-8 | B ‘) 5 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 |. 1 0 10-40 || 547-8] 42-5 || 439-1] 43-4 | W 15 0 09-82 || 536-0! 44-1 || 421-7] 44.2 | H 8 0 08-73 || 547-5| 42-5 || 437-7] 43-3 || W 16 0 10-13 || 536-5} 43-8 || 428-6] 43.8 || H J 9 0 09-27 || 546-5] 42-5 || 437-1] 43-2 | W 17-0 09-03 || 538-5| 43-6 |) 432-3] 43-5 | H 4 10 0 09-06 || 546-2} 42-4 |) 436-1] 43-0 | W 18 0 09-05 | 538-9| 43-3 | 431-8] 43-2 | H " 11 0 09-46 || 544-8} 42-2 || 436-4) 42-9 | H 19 0 09-08 | 538-8] 43-0 || 435-1] 43-0 | W | 12 0 09-06 || 546-1} 42-0 || 435-0| 42-6 || H 20 0 09-66 || 538-4| 42-8 || 438-0] 42-8 | W | | 1 DECLINATION. Magnet untouched, Sept. 214—Dec. 294, j Birizak. Observed 2™ after the Declination, & = 0-000140. BaLaNceE. Observed 3™ after the Declination, k = 0:000010. { + Extra Observations made. bud HovurLy OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 17—22, 1845. 61 | Gottingen BIFILAR. BaLANcE. || . =| Gottingen | BIFILAR. BALANCE. = = | Mean Time || Decuina- ; | ze ‘| Mean Time | Decrina- ES | of Declina- TION. Cor- |Thermo-]| Cor- /Thermo-| 275] of Declina- | TION, Cor- |Thermo-|| Cor- |Thermo-|| 2°2 | tion Obs. rected.| meter. |] rected.| meter. | 5] tion Obs. | rected. | meter. || rected.| meter. || 5 ~ h. m. ° r Se. Div. a Mic. Div. 2 di. s/h.) cm. ° cA | Se. Div. J Mie. Diy. ° | 21 0 || 25 09-76 || 538-0| 42-6: || 436-9) 42-6} B ]|20 5 0 | 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 7 0} 08-36 | 544-5| 46-3 || 428.3) 46-5 | W 0 0 11-28 |) 535-0| 42-3 || 429-6) 42-5 | W 8 0O| 08-00) 542-2| 46-1 || 429-6) 46.3 || W 10 12-73 || 536-3| 42-3 || 436-3]} 42-7 | W 9 0 | 07-64 || 543-2} 45-8 || 430-3} 46-0 || W 2 0 | 15-34 || 540-0| 42-4 || 444.7) 42-8 | W 10 0} 07-54 | 543-7| 45-6 | 427-0} 45-7 | W 3 (O | 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 | W 12 0 07-51) 541-5| 45-1 || 426-2) 45-2 || H 1 - 5 O || 25 11-79}| 535-9] 42-9 || 470-4| 43-8 | W | | | i bia 6 Ot) 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 O || 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 J 8 0 | 09-62 || 545-2) 43-7 | 450-5] 44-7 | H 15 0 08-01 | 541-8) 44-4 | 427-1] 44-5 || H . - 29 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 0] 25 07-37|| 538-2} 44-1 | 446-0) 45-1) H 17 0 | 07-87 || 541-5) 44-0 || 431-2} 44.0 || H 5 i, 11 47) 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 4 | 20 0 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 Ze 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 || B ] 21 0 O 10-00 || 534-1} 42-4 | 433-6| 42-5 | W 17 (0 08-61 || 540-9} 45-4 || 416-9} 46-3 || B 1 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 3.40 09-35 | 541-1} 42-6 || 439-6] 43-0 | W 20 0 11-14 || 538-8} 46-0 | 423.8) 47.2 || H 20 07-04 | 539-3} 42-8 || 445.0| 43-4 | W S21 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 7 0 07-91 || 545:2| 43-0 | 437-3) 43-5 || H 19 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 1 0 11-84] 538-8] 47-2 || 435-5) 48.2 || H 9 0 07-54) 546-9) 42-7 || 431-0] 43-0 || H 2 0 11-21 |} 542-9| 47-4 || 436-2| 48-5 || H 10 0 07-81 | 545-0) 42-5 || 428-0] 42-6 || H 3 0 11-61 |} 540-9] 47-7 || 443-8| 48.7 || H 11 0 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 6 0 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 7 0 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 16 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 0 07-67 || 545-4} 40-2 || 431-6} 39-8 || B 1l 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 0 08-14] 547-0) 39-5 || 431-9] 39.2 | H | 20 0 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 0 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 Dal; 0 06-95 || 545-5] 47-1 || 408-8} 47-5 || W 10) 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 Bae 08-31 | 542-3) 40-9 || 454-9] 42-0 | H 22 0 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 Fite l) 08-48 | 547-2} 41-3 | 445-8] 42-1 || B 0 0 0 12-45 || 536-3) 46-3 || 417-0] 46-6 || H 8 Ot 02-59 || 545-3} 41-3 | 443-7| 42-0 || B 1 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 2 0 11-10}} 537-0| 46-3 || 425-7| 46-8 || B 10 0 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. _ Biriiar. Observed 2™ after the Declination, s—0:000140. Batance. Observed 3” after the Declination, =0-000010. t Extra Observations made. MAG, AND MET, oBs., 1845. a: Q 1 7 | PRI dt tt Sti I Se 62 Hourty OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 23—28, 1845. Gottingen BIFILAR. BALANCE. eee Gottingen BIFILAR. BALANCE. % Mean Time || DEecLiINa- || Pa Mean Time || Decurna- | 2 S| of Declina- TION, Cor- |Thermo-|| Cor- |Thermo-| 2] of Declina- TION. Cor- |Thermo-|) Cor- |Thermo-| 2°3 tion Obs. rected. | meter. || rected. | meter. ||S'~| tion Obs. rected, | meter, || rected. | meter. 5 y a. ahs om. ee ee Se. Div. ° Mic. Div-| ° — | doh mi} 2 ¢ | Se. Div. ° Mic.Diy.| © 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 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 15 0 08-41 || 544-2! 37-7 || 440-8] 38-0 || H 23 0 08-75 ||. 544-8] 47-7 || 411-4) 48-9 16 0 08-41 || 545-3] 37-6 || 439-7] 37-9 || H |] 26 0 0 09-64 || 545-4} 48-0 || 409-7) 49-3 Lim 10. 07-96 || 546-9] 37-5 || 438-8] 37-7 || H 1-0 09-84 | 546-4) 48-4 || 405-7] 49.7 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 19 4 07-54 || 548-1| 37-2 || 435-4) 37-1 || W o 0 09-32), 548-3} 49-1 || 402-1] 50-2 20 0 07-07 || 546-7| 37-0 || 436-9| 36-8 || W 4 0 08-75 || 548-5| 49-4 || 401-1] 50-5 21 0 07-13) 543-6) 36-7 | 438-4] 36-5 | B 5.6 (0 09-42 || 550-1) 49-6 || 399-5} 50-5 22230, 08-41 || 541-7| 36-5 || 438-5] 36-2 || W & 0 08-73 || 548-7| 49-7 || 400-2} 50-6 23 0 10-88 || 538-9) 36-2 || 436-1] 36-0 | WwW we VO 08-63 | 547-5| 49-8 || 399-4) 50-7 24 0 0 12-48 | 537-4) 36-0 || 440-5) 36-0 | W 8 0 07-72 || 548-9} 49-9 || 399-1) 50-7 hb @ 12-08 || 539-5) 36-0 || 444-7| 36-3 | W 9 0 07-20 | 547-4} 49-9 || 400-0} 50-8 2.0 12-23 || 543-7| 36-2 || 445-2] 36-7 | W 10 0 07-27 || 545-6} 50-0 || 400-7] 50-8 3 0; 11-59 || 545-7] 36-6 || 452-1] 37-3 | W 11 OF 03-57 | 550-6| 50-0 || 394-4] 50-8 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 5 0 09.46 || 542-6) 37-4 || 462-5) 38-1 | W 63 40) 08-68 || 543-2] 37-5 || 458-3) 38-3 || H 13. 0 || 25 08-34 || 547-1) 50-2 || 389-1] 51-1 CU 08-75 || 543-3| 37-7 || 454-4] 38-2 || H 14 0 08-23 || 548-1} 50-2 || 387-1] 51-0 8 OF 05-11 || 537-2| 37-7 || 455-6} 38-2 || H 15 0 08-26 || 550-8| 50-1 || 385-0| 50-8 9 0 02-01 || 540-7} 37-6 || 445-5] 38-2 || H 16 0 07-65 || 550-5] 50-0 || 382-9) 50-6 10 O 04-51 || 538:0| 37-6 || 444-1] 38-2 || H 1% 0 08-26 || 548-4} 50-0 || 385-4} 50-5 Lie O 07-17 || 540-2] 37-6 || 446-8; 38-2 | B 18 0 07-58 || 548-1! 49-8 | 383-9] 50-3 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 20 0 07-32 || 548-7| 49-6 || 384-4] 50-0 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 14 0 09-39 || 545-1] 37-6 || 442-3] 38-3 | B 22 0 06-97 || 544-2| 49.4 || 389-9) 49.7 15 0 08-11 || 542-5} 37-7 || 442-1] 28-4 | B 23 0 08-66 || 541-6| 49-4 || 388-7| 49.7 16 0 12-11 || 541-9] 37-8 || 437-9] 38-6 | B | 27 0 0 09-86 || 541-9| 49-4 || 391-6] 49-8 17 O 04-89 || 550-6] 37-9 || 431-0) 38-8 | B 1. 8 12-11 || 544-6] 49-5 || 393-5] 50-0 18 0 06-70 | 549-3} 38-2 || 437-9] 39-2 |] B 2 0 11-15 |) 546-5} 49-6 || 394.3] 50-0 19 0 06-76 || 549-8} 38-6 || 439-0| 39-7 | H 3.0 10-06 || 547-5| 49-6 || 395.3| 50-0 20 0 07-60|| 549-9} 39-0 || 438-2) 40-3 || H 4 0 09-02 | 547-6) 49-6 || 394-6] 50-0 21 0 07-71|| 548-6| 39-4 || 439-4) 40-7 || W 5 0 08-48 || 548-8] 49-6 || 393.7} 50-0 22 0 08-12)) 544-5| 39-8 || 437-6| 40-9 || H 6 0 08-16 | 549-4} 49-6 || 391-5] 50-0 23. 0 09-77 || 544-3) 40-1 | 436-6) 41-2 || H dy 40 07-89 || 550-0} 49-6 || 391-3] 50-0 25 0 O} 11-14]} 544-1] 40-4 | 438-1) 41-6 || H 8 0 07-74 || 549-5| 49-6 || 391-3| 50-0 1s 410)" 10-83 || 546-1] 40-8 || 438-6] 42-0 || H 2 46 07-71 || 549-8] 49-6 || 391-2] 50-0 2 0 10-00 || 546-5) 41-1 || 437-5) 42-4 | H 10 0 06-73 || 545-5| 49-7 || 394-3/ 50-1 oe sO) 09-47 || 547-5| 41-5 || 436-3) 42-7 | H 11 Of 02-20 || 541-0| 49-7 || 403-7} 50-1 4 0 08-59 || 546-1) 41-8 || 437-2) 43-0 | H 12 0 05-92 || 540-9] 49-7 || 401-6} 50-2 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 7 Of 09-08 || 546-2| 42-4 || 436-5| 43.7 || B 14 0 05-96 || 545-8; 49-8 || 395-2] 50-2 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 9 0} 06-59 || 547-4) 42-9 | 437-7) 44-2 || B 16 0 07-49 | 549-5} 49-8 | 392-4] 50-1 10, 04 03-67 || 556-9} 43-1 || 428-0) 44.4 | B 17 O 08-01 || 551-4| 49-8 | 389-5] 50-0 ll O 07-51 || 543-8] 43-4 || 432-6] 44-7 || W 18 0 06-98 || 549-9| 49-7 || 388-5) 50-0 12 0 | 06-64 || 543-9| 43-7 || 432-4) 45-0 || W 19 OF, 15-34 |] 548-1] 49-7 || 372-2| 50-0 | | 20 0 09-08 || 554-7| 49.7 | 372-1} 49-9 13° 0 | 25 07-31 || 543-9) 44.0 | 430-2} 45-2 || W 21, -0 10-21 || 535-5] 49-6 || 382-7] 49-8 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 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 16 0} 08-16 || 548-3) 45-0 || 420-9} 46-2 || W] 28 0 0 12-55 || 522-8} 49-3 | 404-6) 49-5 L710, | 07-64 || 549-6) 45-3 || 417-2) 46-5 || W 1, 11-51 || 538-7} 49-2 | 417-8| 49-5 18 0 | 07-65 || 549-7| 45-7 || 416-1} 46-9 || W 2. .0 12-96 || 542-8} 49-2 | 418-1} 49-5 19 0 07-71 || 547-5| 46-1 || 415-4] 47-3 || B 3.0 11-10} 542-8} 49-1 || 413-0] 49-5 20 0 | 07-94 '| 546-3! 46-4 | 414.6! 47-7 | B 4 0 09-76 || 543-3! 49-1 |) 409-81 49-5 DECLINATION. Magnet untouched, Sept. 21’—Dec. 294. BIrILarR. Observed 2™ after the Declination, s=0-000140. Bauance. Observed 3™ after the Declination, s=0:000010. i ' Tt if i | | + Extra Observations made. Tt \s BIFILAR, BALANCE. Cor- rected. Thermo- meter. Cor- |Thermo- rected. | meter. Se. Div. 542-7 543-9 542-5 541-2 540-8 541-1 541-3 542-5 541-1 539-1 538-4 542-0 543-0 543-3 543-6 540-8 541-4 534-8 539-0 537-4 535-2 529-7 535-9 541-7 522-2 538-4 540-9 544-3 543-9 543-4 : CHIAMAwWNYRO coooooececceoocoececooocococea eoooocooeoocoeocecsooscooooooococceos coccccce: |! 49-1, 49-2 49-2 49-1 49-1 49-1 49.2 49-4 49-7 49-8 49-9 49-8 49.7 49-6 49-5 49-3 49-2 49-0 48:8 48-6 48-6 48-6 48-7 || 48-7 48-6 48-5 48-4 48-3 48-1 47-9 47-5 42:5 42.8 | 381-0 | 392-8 | 388-1 | 409-8 | 394-1 | 431-2 | 438-2 43-1 43-3 43-4 43-4 43:3 43-1 42-9 42-7 42-5 42-5 42-5 42.6 42-7 42-7 42-7. 42-6 42-4 42-2 42-1 42-0 41-8 DECLINATION. | 421.3 | 424-1 | 423-1 | 426-6 | 434-1 | 427-0 | 426-4 Mice. Div. 405-2 403-3 400-2 403-2 405-6 405-9 | 407-0 405-9 404-8 401.4 376-9 375-4 380-5 381-9 386-0 387-1 394-5 401-1 407-9 411-3 409-2 424-7 422.7 404-5 402-0 395-8 388-3 420-4 423-6 420-4 | 426-2 | 416-5 424.9 424.5 428-3 430-8 431-8 430-1 427-9 426-4 | 428-5 421-7 Observer’s Tnitial. SSU ROO ORR Oe Seen PS Se essed ee Gottingen Mean Time of Declina- tion Obs. dh m. 1 13+» 14 0 15 0 16 0 17 0 18 0 19 O 20 0 21 0 22).40 23 0 2 70:0 1 0 0 0 0 0 0 0 0 2 3 4 g! is 6 7 8 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 ot 18 ot 19 0 20 0 21 10 22 0 23 0 3 0 0 1 0 2 0 3 0 4 ot 5 0 6 0 7 0 8 0 9 Ot 10 oF 11 Of 12 Ot 13 Of 14 Of 15 Of 16 Ot 17 0 18 0 19 0 20 0 21 0) DECLINA- | TION. Cor- |Thermo- rected. Or || Se. Div. 25 03-88 || 541-2 07-45 |) 542-6 07-65 |) 545-8 06-93 || 546-7 07-44 || 548-1 07-10 || 550-5 07-07 || 551-5 08-80 || 551-0 11-28 |) 547-1 11-48 || 541-0 12-31 || 537-9 13-32 || 535-8 14-65 || 533-7 16-01 || 538-6 14-50 || 542-5 11-64 || 542-7 08:79 || 544-8 08-16 || 545-6 08-12 || 544-9 07-87 || 544-1 04-91 || 538-7 06-27 || 539-1 07-67 || 541-8 05-05 || 541-1 25 06-86 || 542.5 08-31 |) 543-5 08-55 || 544-0 09-08 || 545-0 15-14|| 553-4 07-17|| 556-6 10-13 |) 557-4 11-41 || 548.2 13-05 || 535-8 12-42|| 536.6 14-68 || 531-9 19-19 || 528-6 15-71] 529-3 15-04 || 545-0 17-09 || 539.4 20-43 |) 544-6 04-41 |) 553-3 00-48 || 565-0 26-03 || (730-0) 02-96 || 621-0 08-88 | 477-3 25 08-45 || 484.8 24 57-34 || 493-7 (24 54-20)| (497-0) 24 50-93 |) 457-7 24 53-88 || 464-7 25 02-42 || 485-7 00-20 || 511-0 05:79 || 519-7 08-14 || 523-9 09-59 || 528-2 09-79 || 528-0 07-96 |) 529-6 BIFILAR. meter. 38-2 37-8 } Cor- |Thermo- | 418-3) 41-2 | 417-5| 41-0 Hourty OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 28—DECEMBER 3, 1845. 63 BALANCE. Tnitial. Observer’s rected. | meter. ee % wr ee i=) o SRR b ed woW Onn senses esses esses MHSSsseSesettte tet howsessaeas Mic. Diy. Q 416-4| 42-0 417-4| 41-8 | 416-5) 41-6 416-8) 41-4 418-4} 40-8 416-1| 40-7 417-6| 40-7 421-5} 40-7 423-2} 40-7 431-8] 40-8 435-2| 41-1 441-3} 41-4 ns ns Va oO ns i) a Birinar, Observed 2" after the Declination, s=0:000140. BALANCE. Magnet untouched, Sept. 214—Dec. 294, Observed 3™ after the Declination, k—0-000010. _ ft Extra Observations made. Nov. 284 10294 10h, Term-day Observations made. 7 Dec. 3474 2m. Bifilar scale out of sight, reading estimated. Dec. 3412), Observations accidentally omitted ; the quantities in parentheses are the means of observations made 5™ before and 5™ after the times of hourly observation. See Extra Observations. Hovurty OBSERVATIONS OF MAGNETOMETERS, DECEMBER 3—9, 1845. Gottingen Birivar. BALANCE. Wee Gottingen BIFILAR. BALANCE. tot Mean Time || Drcurna- ||— a | 2-5] Mean Time || Decrina- ; aed | of Declina- TION, Cor- |Thermo-|| Cor- |Thermo-| 2°2 | of Declina- TION. Cor- |/Thermo-|) Cor- |Thermo-| 2°3 tion Obs. rected. | meter. || rected. | meter. Sa tion Obs. rected. | meter. || rected. | meter. 35 r A — - —_ | Wor anc om: ss ¢ Se. Div. 5 | Mic. Diy. ‘dg d. oh m 2 ¢ Se. Div. i. Mie. Div- a | 3 22 © || 25 08-08 || 530-4} 37-5 || 477-2] 37-7 | H 6 7 O || 25 10-04}) 538-5] 40-8 ] 463-2] 41-5 | H | 23) *0 08-61 || 532-8| 37-2 || 484-9] 37-7 | H 8 0 08-41 || 539-7] 40-8 || 462-9} 41-5 || H | | 40 0 10-43 || 533-5] 37-1 || 478-5) 37-7 | H 9 0 08-90 || 538-0| 40-8 || 463-0] 41-5 | H i | Nims) 09-76 || 531-6| 37-1 || 474-8} 37-8 | H 10 O 07-67 || 538-1} 40-8 |} 460-3) 41-5 | H 2 0 09-82 || 537-1] 37-3 || 478-2] 38-2 | H Abb 9) 02-62 || 544-0} 40-8 || 456-1) 41-3 || B J | 3.0 09-89 || 537-3| 37-6 || 480-2] 38-5 || H 12 0 04-78 | 537-6| 40-6 || 455-0) 41-0 | B 4 0 08-45 || 534-9] 37-9 || 480-0} 38-6 | H | 5 0 08-68 | 542-9} 38-0 || 478-6] 38-7 || H 13 O || 25 08-08} 537-1] 36-7 || 451-1] 36-4 | W 6 0|| 10-97] 535-3] 38-2 || 481-9| 39-0 || B 14 0 08-05 |, 536-6| 36-4 | 446.3) 36.0 | WI] 7 '0'\| 11-10 || 540-2} 38-4 || 478-6] 39-1 B 15 0 08-45 || 536-8] 36-0 || 446-8] 35-7 | W a} 08-92 || 540-5] 38-5 || 477-8] 39-2 | B Lo 0 08-58 || 537-7| 35-7 || 447-3) 35-4 | WwW 9 0] 08-06 || 538-0| 38-6 | 475-5] 39-3 | B 70 07-76 || 539-9| 35-4 || 447-7) 35-3 | W 10 0 07-79 || 537-9] 38-7 || 475-5] 39-4 | B 18 0 07-60 || 541-9} 35-2 || 447-9| 35-1 || WT ll 0 07-57 || 535-8] 38-9 || 473-4] 39-6 | W 19 0 07-67 || 541-7| 35-0 || 450-4] 35-0 || B 12 0 07-74 || 534-9| 39-0 | 472-1) 39-8 | W 20 0 07-67 || 540-5 | 34-9 || 452-2) 35-0 | B 13 0 || 25 07-67|| 532-5| 39-2 || 472.5] 40.0 28 | AOGS | oO) oe ee S ne = 22) 0 07-60 || 538-9] 34-7 || 451-8] 34.9 || H 14 0 08-72 || 535-5| 39-4 || 470-4] 40-2 = : AGA 23 0 09-66 || 533-6| 34-7 |) 455-4| 35-1 | H 15. 0 09-40 || 539-8] 39-6 || 466-6] 40-5 || W Sake x 0 0 09-59 || 535-9} 34-8 |) 454-3] 35.2 | B | 16 0 07-92 |) 537-5) 39-8 || 465-6} 40-7 || W aya 1 6 12-82 || 540-1} 34-9 |] 454-8) 35-4 | B 17 0 10-04 || 541-4] 40-0 || 462-6] 40-9 || W 2 0 11-77 || 539-7| 35-2 || 456-1] 35-9 | B 18 0 05-23 |) 545-1] 40-2 || 459-0] 41-0 | W 2 ae 3 0 11-44 || 541-0} 35-6 || 460-2} 36-4 || H 19 0 07-25 || 543-0} 40-4 || 458-5] 41-1 B eS | e 4 0 10-74 || 539-9} 36-0 || 462.4) 36-8 | H | 20 0 09-35 || 541-5} 40-5 | 456-4] 41-2 | B ; i rn 2 = 5.6(0 09-35 || 541-0| 36-6 || 460-5) 37-4 | H | 21 O 09-10 || 536-9} 40-5 || 455-2] 41-2 | H ‘ pe | A 6 0 08-88 || 541-5| 37-1 || 458-8] 37-8 || W J” 22 0 11-99 || 526-4] 40-5 || 459-7] 41-2 | H 5 Bi male a Thiet!) 05-96 || 539-7] 37-5 || 460-9} 38.2 | W P| 23 0 12-46) 529-8] 40-6 || 456-1] 41-2 | H = In a : Ss Oo 07-98 || 543-7| 38-0 || 457-1] 38-6 | W 7 5 0 0 12-67 || 531-0] 40-7 || 461-3] 41-4 | B ak | is : 9 0 07-55 || 543-6] 38-4 || 454-5] 39.0 | W ae, 14-73 || 528-0| 40-8 || 464-1] 41-6 | H ' =O mA Lor 0 07-47 || 544-0| 38-7 || 452-9) 39.3 || W | 2 0 14-91 || 527-4| 41-0 || 466-0] 41-8 | H = | 5 p20 07:00 | 541-8} 38-9 || 453-1| 39.7 | H ae EN I Wee I eel Sean bees 12 0| 07-57] 542-0| 39-1 | 451.2| 40.0 | He 4 0] 13-90 || 533-9| 41-5 || 494-0] 42.2 | H { Seal!) 15-74 | 528-8] 41-5 |) 504-8] 42.2 | H 13 0 || 25 07-69|| 542-8| 39-5 || 448-2) 40-3 | H J” 6 0 12-85 || 531-6] 41-5 || 504-8) 42-2 | W 14 0 07-78 || 542-2} 39-8 || 446-9) 40-5 | H | ipa) 08-83 || 537-0| 41-6 || 493-7) 42.2 | W 15 0 08-05 || 543-1| 40-0 || 443-9| 40-7 | H | 8 0 08-46 || 538-3) 41-5 || 478-9] 42-0 | W 16 0 08-72 | 542-8| 40-1 |} 441-4) 40-7 | H 1 9 0 07-94] 536-3] 41-3 || 471-5] 41-8 | W 17440 08-80 || 544-7 | 40-2 || 440-6} 41-0 || H } 10 0 07-57 || 536-7| 41-1 || 466-1) 41-6 | W 18 0 08-59 || 544-4} 40-3 || 440-4| 41-1 | H | ll O 07-71 || 536-3) 40-9 |) 462-0] 41-5 | H 19 0 07-79 || 547-1] 40-4 || 439-3} 41-1 | WY 12 0 07:65 || 536-0) 40-8 || 458-4) 41-2 | H 20 0 07-92 || 545-0} 40-4 || 439-0} 41-0 Ww | 13 0 || 25 06-63) 537-5| 40-7 | 456-6| 41.2 | H mah 07-40, 544-4) 40-8:ik8o-8 eta s 3 22550 06-68 || 541-3] 40-3 || 442-6) 40-9 || WF 14 0 06-59 || 537-3| 40-6 || 451-3] 41-1 | H | ra 5 23 0 08-01 || 538-3| 40-3 || 442-8| 40-9 ; 15; 0 05-43 || 536-6| 40-4 || 449-1) 40.9 | H | 5 : On 70 09-27 || 538-8| 40-5 || 443-8) 41-2 | W 7! 16 0 08-58 || 528-2} 40-3 || 452-2] 40-8 || H | = . EO) 09-94 || 540-3| 40-7 || 443-2) 41-5 Vy E7470 08-38 || 540-2} 40-2 || 446-8) 40-6 | H = | ates 2 210 10-47 || 540-9] 41-0 || 445-1} 41-8 || WH 18 0} 07-37 || 539-9| 40-0 || 450-8] 40-5 | H oral | 3 10 09-77 || 543-7 | 41-4 || 444-7) 42-1 { 19 0 || 07-99 || 543-0} 39-9 || 450-7| 40-4 | W | 4 0 08-01 || 542-2) 41-7 || 445-6} 42-3 || WH 20 O 08-41 || 541-9] 39-8 | 451-0| 40-3 | W = = - | i by) 07-52 || 546-0) 41-8 || 442.5) 42.4 | WJ 21 0 08-52 || 536-1| 39-7 || 453-8) 40-2 | B 3 ] = 6 0 08-05 || 544-5} 41-7 || 440-8} 42.4 || H | 22°10 09-20 || 534-2) 39-7 || 454-5} 40-1 || W = | = 10 07-71 || 543-8| 41-7 || 442-0] 42-3 || H 23°60 09-76 || 532-8] 39-6 || 454-1} 40.0 || W 8 0 08-39 | 542-9] 41-6 || 440-7] 42-2 | H 6 0 0 11-32|| 534-6| 39-6 || 456-2} 40.2 | W = : | = rm E 9 0 07-81 || 543-6} 41-5 || 439-1] 42-0 || H | 1 0 11-07 || 535-9} 39-8 || 458-0] 40.5 || W z : | $ 10 0 07-34 || 542-1] 41-3 | 438-1] 41-8 | H ited 11-42 || 537-8} 40-1 || 460-8} 40-9 | W x a8 Diva 07-71 || 543-2} 41-2 || 439-0] 41-7 || B oro 11-30 || 538-9} 40-4 || 466-8] 41-2 | W 12 0 07-87 | 543-9! 41-1 | 436-5| 41-5 | B 4 0 11-03 || 536-9) 40-7 || 473-2) 41-5 || W el 10-60 || 539-3| 40-8 | 468-9] 41-5 | W 13 0 || 25 08-14) 542-6} 40-9 | 435-5] 41-3 || B 6 01 08-34 || 536-9 40-8 || 468-4! 41-5 | H 14 0 08-38 543-3 40-8 434-6 41-2 || B DECLINATION. Magnet untouched, Sept. 21¢—Dec. 294, Biritar. Observed 2™ after the Declination, s=0-000140. BALANCE. Observed 3™ after the Declination, k—0:000010. HovurLy OBSERVATIONS OF MAGNETOMETERS, DECEMBER 9—15, 1845. 65 ae Brrmar. || Bazance. |/% .| Gottingen || BIFILAR. BALANCE. fe Bias tise | DECLINA- >| Mean Time || Decuina- - | LE ‘| of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-| 2 ‘Z| of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|) ¢ ‘Z | tion Obs. rected. | meter. || rected. | meter. Ss tion Obs. rected.| meter. || rected. | meter. ic - q Pee a. |e? Se.Div.] ° » ||Mic.Div.| ° GAs inuanrel | CoS on Sc. Div. So) |(MioDiva| ab ae || | 915 O| 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 j 0 08-72 || 545-4) 40-6 | 432-0) 41-0 || B 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 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 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 0 08-39 || 548-2) 39-9 || 427-8) 40-2 || H 5. (0 09-29 || 547-2} 40-0 || 436-0} 40-5 || W 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 0 08-97 || 543-1] 39-6 || 431-4} 39-8 | H 7 0 09-10 || 541-4| 39-8 | 437-0) 40-1 || H 0 09-22 || 542-5) 39-4 || 431-7) 39-7 || H 8 0 10-61 || 533-7] 39-6 | 451-0] 39-8 || H 0 10-80|| 537-5| 39-3 || 434-1) 39-8 || H 9 0 06-86 || 540-9] 39-4 || 445-2] 39-4 | H 0 13-99 |) 540-8| 39.4 || 436-1] 40-1 | H 10 0 07-24|| 543-0] 39.0 || 440-7) 39.0 | H 0 13-43 || 538-1] 39-7 || 438.0] 40-5 || H 11 0 07-04|| 541-4| 38-7 || 436-3] 38.6 || B 0 10-83 || 538-5| 39-9 | 441-1] 40-7 || H 12 0 06-79 || 540-5) 38-3 || 436-3] 38-2 | B w Dane ee Niet ee get) | a 13 0 | 25 06-97|| 538-7| 37-9 || 435-4| 37-7 | B 0 08-61 || 544-9] 40-2 | 446-4| 41-1 | H G ‘ 37 14 0 05-42 || 537-5] 37-5 || 429-5] 37-2 || B 0 07-81 |] 546-9| 40-4 || 443-4] 41-2 || B a rs 15 0 07-44 || 537-7| 37-0 | 431-3] 36-8 B 0 07-65 || 546-4) 40-5 || 440-2) 41-2 || B eet } 7 16 0 08-08 || 538-0] 36-6 || 431-4) 36-3 | B 0 07-47 || 545-8| 40-6 || 439-3) 41-2 || B - 2 : 17,0 07-34 || 538-5] 36-1 || 432-8] 35-8 | B 0 07-17 || 545-5} 40-7 || 440-0) 41-3 || B gts : | 18 0 07-60 || 539-7} 35-6 || 433-1] 35-3 B 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 0 Pee ic ere eee aed 20 0 07-34 || 542-6| 34-7 | 430.6| 34.4 | H 7-45 || 543-4] 41-1 |) 440-9) 41-9 || W j 2 ae les nail Shoal 0 07 21 0 06-59 || 543-7| 34-4 | 430.0] 34-1 | Ww 0 || 25 06-90 |) 542-5) 41-4 |} 441-8| 42.3 || W 22 0 06-77 || 544-0} 34-1 | 428-8] 33-7 || H 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 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 0 08-61 || 546-2} 42-6 || 434-2] 43-5 || W 1 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 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 0 07-67 || 545-8] 43-6 || 427-8] 44.2 || B 4 Of 14-23 || 542-1) 34-2 |) 485-1] 35-1 || H 0 07-54 || 545-0| 43-7 || 427-4) 44.2 || B 5 Ot 11-98 || 534-2] 34-6 || 492.8] 35.5 || H 0 07-40 || 544-0] 43-7 || 429.1] 44.2 | H 6 5t|) 25 06-32] 540-0} 35-1 || 494-6] 35-9 || B 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 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 0 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 0 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 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 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 OD} 09-59) S88) 43-7 | 231-8) 44-1 1 H | 1413 0 | 25 07-81] 542.4] 40-6 || 438.6 41-2 || # 0 08-19 || 548-4] 43-7 || 428.4) 44.0 | H 2 fees. 14 0 07-72 || 543-7) 41-0 || 436-2] 41-7 | H 0 07-51 || 546-1| 43-5 |) 427-0) 43-8 || W } 15 0} 08-09 || 543-3] 41-4 | 434-8] 42.2 || H 0 07-84 || 546-9] 43-3 || 424.4| 43.6 | W | 16 0) 08-11 || 544-0] 41-8 || 432-0] 42-5 || H 0 07-54 || 545-1| 43-1 || 425-2) 43.4 || W | eo | : 4 Or} 11-03 || 543-4] 42-1 || 427-8] 42.7 || H 0 07-07 || 544-5] 42-9 |) 424-0|} 43-2 | W | Saat : fe 18 0 08-18 || 547-6| 42-3 || 416-1] 42-9 || H 0 07-37 || 543-2) 42-7 || 425.0} 43.0 || W | iA 19 0) 11-10 || 544-4| 42-4 |) 415-7] 42-9 || W 0 07-31 || 541-1] 42-5 || 426-5} 42.8 || H 20 0 05-97 5.0| 49 F - 0 | 05-69|) 539-1] 42-2 | 497-3) 42.6 || H al Pees open lL ere eg 21 0] 07-00 || 546-1| 42-3 || 416-8] 42-7 || B 0 || 25 08-55 |) 538-2} 42-0 || 424.5] 42-3 || H 22 0 | 05-85 || 544-3) 42-2 || 419.4) 42.5 || W 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 0 07-91 || 541-5] 41-6 | 424-8] 41-7 || H]15 0 0 13-77 || 519-8] 41-9 |) 427-4] 42.3 || W 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 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 0 07-96 || 645-0) 40-8 | 422-9] 41-0 || H 3.05 11-05 || 530-6] 42-3 || 445-0] 42-9 || W 0 06-79 || 546-7} 40-6 | 421-5] 40-7 || W 4 0 10-60 || 543-5] 42-4 || 442.8] 43-0 || W 0 07-64 || 546-0} 40-4 || 421-1} 40-5 || W 5.0) 08-41 || 544-2] 42-4 || 437-8} 43-0 || W 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 0 07-25 || 538-5] 40-1 | 428-7| 40-3 || W 7 Of] 24 49-22]| 519-6} 42.2 459-3] 42-8 || H ) 09-08 || 530-7! 40-0 | 432-1! 40.2 || B 8 0 | 25 06-39! 534-5! 42-0 | 450-1! 42.7 || H DECLINATION. Magnet untouched, Sept. 214—Dec. 294. : Biritar. Observed 2™ after the Declination, k—0:000140. BaLANcE. Observed 3™ after the Declination, k=0-:000010. + Extra Observations made. 66 Hovurty OBSERVATIONS OF MAGNETOMETERS, DEcEMBER 15—20, 1845. 1 Gottingen | BIFILAR, BALANCE. a es Ges . BiFiLar. BALANCE. . F Mean Ti DECLINA- Paes ean Time ECLINA- s af Decline? TION. Cor- |Thermo-|| Cor- |Thermo- ge of Declina- TION. Cor- \Thermo-| Cor- |Thermo- S | tion Obs. |, rected. | meter. rected. | meter. 5 = tion Obs. rected. | meter. |] rected.| meter. 5 a ace ee Ce || Se. Div, ° ‘Mic. Div. 9 AMG ace | Peee Se. Div. o ||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 || H J 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 || H J 11,0 05-63 || 541-7] 42-1 || 428-2| 42-8 B 19 0 08-08 || 543-2] 35-6 || 424-7] 36-2 || W J 12 0 07-31 | 543-8| 42-1 || 425-6] 42-7 || B 20 0 08-06 || 539-4] 35-6 || 426-5] 36-1 |) W | - 2100 08-06 || 542-3} 35-6 || 426-5| 36-1 || B | 13 0 || 25 09-93) 539-6| 42-0 || 409-6] 42-6 | B 22.0 08-48 || 540-8} 35-7 || 427-1] 36-2 | W 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 || W 15 0 09-89 |; 538-4| 42-0 || 405-1} 426] B]18 0 0 10-87 || 528-8| 35-8 || 437-0} 36-4 || W 16 0 | 08-68 || 543-5| 42-0 || 391-2] 42-7 | B Tr, 13-76 || 532-7| 36-0 |) 438-1) 36-7 || B fant) 11-86 | 542-3) 42-0 | 390-8] 42-7 B 240 15-32 || 531-6| 36-3 || 440-6] 36-9 || W 18 0 09-29} 542-1] 42-1 || 397-8) 42-8 | B 3 0 14-60 || 535-0] 36-6 || 451-8] 37-3 || W J. 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 || W 20 0 08-50] 539-1] 42-2 || 417-6] 42-9 H 5 0 15-78 |) 541-1] 37-2 || 455-8| 37-8 || W 21 0] 08-36] 542-7] 42-3 || 424-1} 42-9 | W 61 10) 00-98 || 550-2} 37-2 || 451-3) 37-8 || H 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 || H fF 23 0 09-05 || 538-2| 42-1 || 425-5] 42.7 | H 8 0 || 24 59-83]| 546-5} 37-1 || 440-4] 37-8 || H J 16 0 0 10-14 || 536-8| 42-0 || 425-6} 42-7 || H 9 0 || 25 06-95] 538-7| 37-0 || 439-3) 37-7 || H 1 0 11-88 || 532-8] 42-0 || 426-0} 42-7 || H 10 O 07-04 || 539-8} 36-8 || 433-8] 37-3 || H 2 0] 13-46 | 540-4] 42-0 || 433-2 42-7 | H tL sO 04-98 || 541-0} 36-6 || 429-6) 36-9 | B 3071 10-36 || 538-7] 42-1 || 435-8| 42-7 | H 12.0 06-36 || 537-8} 36-3 || 427-7] 36-5 || B 40 09:26 [5340-1 (42 Oy ael eee ew 13 0 | 25 08-28] 540-6) 36-0 | 425-6| 36-2 | B 5 «(OO 08-68 || 538-3] 41-9 || 441-5] 42.5 | H ; : = : > 14 0 07-76 || 540-4| 35-7 || 425-8} 35-9 || B 6 0 07-02 | 537-2) 41-9 |) 441-3] 42-3 | B 5 , 2 aoa ese ¢ 15 0 07-76 || 541-0} 35-5 || 427-9) 35-7 || B 7 Of| 00-67 || 537-3] 41-8 || 438-0] 42.2 | B F Hille ae 16 0 08-06 || 542-0! 35-3 || 428-5) 35-5 || B 8 0 02-93 || 543-0| 41-7 || 432-2] 42.1 | B : Si 5 Lee =<) 08-34 || 541-6] 35-1 || 429-5| 35-4 || B 9 0 07-25 || 539-1] 41-5 || 429-5] 41-9 || B = 3 i 18 0 08-90 || 541-9} 35-0 || 428-7] 35-3 || B 10 0 05:32 | 539-0] 41-3 || 428-3] 41-7 | B | Lae : 190 08-16 || 542-1} 34-9 || 428-1] 35.3 | H 11 O 04-02 || 539-4| 41-2 || 424.8) 41-4 | W 08-12|| 542.2! 34-9 | 429.9] 35-5 || H 2 0 01-19] 536-7| 41-0 | 411-0] 41-1 | W ae pe ae See: -= 21 0} 08-08 || 542-1] 34-9 || 434-0) 35.7 || W 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 || H f 14 0 04-91 || 536-2] 40-4 || 414-1} 40-5 | W 2340 07-34 || 540-4) 35-3 || 432-8) 36-2 || H 15 0] 10-61 || 540-7] 40-1 || 413-2} 40-2} W]19 0 O 09-02 || 540-1| 35-7 || 434-2] 36.5 || H 16 0) 10-38 || 536-8] 39-8 || 411-5| 39-8 || W 1 0 10-23 || 538-8] 36-1 || 440-2} 36.9 || H 17 0 | 08-83 |) 541-9] 39-5 || 407-4| 39-5 | W 200 10-70 || 540-1] 36-5 || 436-9] 37-3 | H | 18 0 08-72 || 542-3] 39-2 || 407-9] 39-0 || W 3.0 10-60 || 542-9] 37-1 || 439-2} 37-7 || H F 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 | H | 20/0 12-42 | 540-5| 38-5 || 412-8] 38-3 || B a 0 08-61 || 544-9| 38-0 || 439-6} 38-7 | H | 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 || B | 220) 09-67 || 530-1| 37-8 || 418-8] 37-8 || H 7 v0 08-05 || 544-5] 38-3 | 433-9] 38.7 | B | 23 60 11-88 || 530-2] 37-6 || 418-4| 37-6 || H 8 0 07:94 || 544-2} 38-3 || 437-3] 38-7 || B yO OM 08-99 || 534-1] 37-4 || 420-4| 37-5 || H 9 0 07-31 || 544-2] 38-2 || 429-2) 38-5 || B iO 11-37 || 529-2] 37-3 |) 428-5| 37-5 || H 10 O 07-34 || 544-2] 38-1 || 424-1] 38-5 || B | 2° 0 10-67 | 536-0} 37-2 || 434-0) 37-5 || H 11 70 07-32 || 543-7} 38-0 || 431-5) 38-5 || W FE me) 12-45 | 539-9] 37-2 || 441-4] 37-7 | H We i) 07-37 || 542-7] 37-9 || 425-7] 38-5 || W eos ; 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 ‘ | 1 : e : 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 ye | fi 17 0 09-24 || 537-9| 42-3 | 391-3] 41-8 || B” 9 0 07-42 || 542-5] 40-1 || 413-6] 41-0 | H y | 18 0 10-40} 539-2] 41-9 || 393-8] 41-5 || B 10 0 |] 05-45 || 542-4| 40-3 |) 413-8] 41-3 || H \ 6 ; : 19 0 12-51 || 540-4] 41-6 || 392-1] 41-3 || H 11 0 06-63 | 545-1| 40-7 || 413-1] 41-7 || B : iat Fo 06-93 | 47-1| 41.2 | 409.7| 49.3 | B 20 0 10-33 || 544-3] 41-3 | 394-6| 41-1 || H a g f PN) 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 | 14 0 |} 07-51] 540-5) 37-7 || 409-4) 37-1 |) W 23 0 12-89) 535-2] 40-7 || 399.3] 40-7 | H | 15 0 || 07-60 || 541-7| 37-4 || 409-9] 36-7 || W] 31 0 0 | 12:08 || 534-7] 40-5 || 405-2] 40-7 || HY 16 0 || 08-18 | 542-7| 37-0 || 410-1] 36-4 | W 0) 12-16 || 535-0] 40-5 | 409.2| 40-7 | H oe MO | 07-34| 543-4] 36-7 | 407-3] 36-0 || W 2 0 10:72] 535-4| 40-6 | 418-8] 40-9 | H™ is 0] 07-22) 544-1] 36-4 || 406-8] 35-7 || W 3 0 10:70|| 544-0| 40-7 || 423-2) 41-2 | H 19 0} 07-07 || 544-3] 36-1 |} 409-7) 35-5 || B 4 0 10-09) 541-3| 40-8 || 425-7| 41-5 || H 20 0 07-11] 543-6] 35-8 || 410-0] 35-3 || B 5 0 09-49 || 543-4] 40-9 || 424.3] 41-6 || H J 21 0 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 0 06-98 | 542-8| 35-4 || 406-0] 35.2 || H 7) 10 08-99! 542-6] 41-0 || 417-0] 41-7 | By 23 0 | 07-87 || 541-8| 35-4 || 404.1] 35.3 || H 8 Oo] 07-72) 541-5] 41-1 | 416-9] 41-7 || BY] 29 0 0 08-75| 541-3) 35-4 || 410.9] 35-5 | H 9 0 00-53) 536-9| 41-1 | 418-6] 41-8 | Bf 10: | 06-42) 542-8) 35-5 || 415.4| 36.0 | H 10 0 | 07-31] 541-0| 41-2 | 416-7] 42.0 | B | 2 0] 07-05 || 535-1| 35-8 || 419-4] 36-5 | H ik, ell 12-35 || 537-8| 41-4 || 413-2] 42-1 |) W] 3 0] 06-27 || 542-9] 36-3 || 425-9] 37-1 || H 12 Ol 06-04 | 538-4! 41-5 || 410-4] 42-3 || W DECLINATION. Torsion removed,—Dec. 294 0}, 0°; 294 1944, —11°; 304 9b, +7}°*; 314 Ob, 0°, +12°%, Effect of + 10° of torsion = — 084, Birivar. Observed 2™ after the Declination, k—0-000140. Batance. Observed 3™ after the Declination, s=0-000010. Dec. 294 1b—304 7h. Magnet with short scale used in the declinometer. The declination at 29d 51—Gh, and 30d Sh—9h, has been deduced from obser tions of the unifilar. * Dec. 304 8b. The deflecting magnet vibrated in the declinometer box. Dec. 304 10h—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. Re 0h, Suspension thread wound up about; of an inch; torsion again removed. The declination at 31d 0h deduced from an observation of the unifilar. TERM-DAY OBSERVATIONS OF MAGNETOMETERS. MAKERSTOUN OBSERVATORY, 1845. ‘MAG. AND MET. oxs. 1845. # : cos ——. 70 TERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845 Gottingen January 22, 23. Mean : ime ol Declination || Drouina- | Brrmar | Batance} Dectina- Brrizar | BALANCE J DeEcLina- BrritaR | BALANCE | DEcLINA- Birivar | BALANCE Observation. TION. Corrected.| Corrected. TION. Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected, ! Co Se. Div. | Mic. Div. 4 Se. Div. | Mic. Div. Sc. Div. | Mic. Div. Se. Div. 10%. 14", 18", 22h. 536-0 604-9 | 25 12-90| 535-6 580-3 | 25 12-72| 539-7 578-2 | 25 16-68 | 542-7 533-9 607-3 11-98} 536-5 579-3 12-13) 540-9 578-0 16-08 | 541-4 536-5 604-9 11-54| 536-6 55 12-45 | 540-4 577-8 16-48 | 540-5 538-4 604-2 11-64} 536-1 579-8 12-40} 541-3 576-2 16-39 | 539-4 538-5 604-5 11-00} 534-8 6 12-58) 540-9 576-4 16-92 | 538.2 539-6 604-2 10-81 | 535-6 581-2 12-56 | 539-5 576-3 17:36 | 537-7 540-0 603-9 11-39} 535-3 581-3 12-72| 539-1 576-2 18-03 | 539-1 537-5 605-1 10-92} 535-1 582-3 12-63 | 538-0 575-7 18-90} 539-1 536-0 604-8 10-33} 533-9 582-1 12-46 | 538-7 575-8 18-82 | 539-4 535-0 605-8 10-03 | 532-8 582-8 13-07 | 538-7 575-7 19-61 | 540-1 536-4 604-6 10-51 | 532-8 582-1 14:03 | 538-6 a 20-00 | 538-0 538-6 603-6 10-85 | 531-8 14-75 | 539-5 575-9 20-06 | 536-9 ii 15 19}, 23h. 539-3 602-9 11-03 | 532-8 15-04| 540-5 575:8 19-37 | 536-0 539-0 603-1 10-78 | 532-8 15-20) 541.2 x 18-81 | 537-5 541-3 600-5 10-72} 533-1 15-04| 542-2 573-4 19-04| 538-1 541-4 601-4 10-65 | 533-8 15-17| 542-3 573-2 19-51} 537-8 540-9 601-8 11-03 | 534-3 15-04 | 542.0 571-2 18-85 | 538-5 540-6 598-4 11-19] 533-9 14-46 | 542-0 Fe 18-37 | 542-1 548-5 590-0 11-21| 534-0 14-20} 542-1 570-2 18-48} 541-8 564-3 582-3 11-61 | 533-3 13-72) 543-1 a 17-42] 542-5 572-9 578-9 10-87 | 532-6 13-61 | 543-4 570-0 18-68 | 543-0 574-6 577-3 10-94 | 532-5 13-47 | 543-1 - 19-84 | 542-7 577-0 | 574-3 11-30| 531-6 13-16} 543-9 570-0 20-63 | 543-5 571-1 | 573-7 11-68 | 532-0 13-61 | ; 21-46 | 541-9 12h, 16, oh, 558-4 | 573-8 11-69 | 533-6 13-32 21-81| 541-8 554-2 | 571-8 12-11 | 534-1 13-56 : 21-59) 540-4 546-4 | 573-0 11:37 535-1 13-29 6 : 20-18} 538-0 534-6 | 576-3 11-55 | 535-4 13-10 . 19:-49| 540-7 524.9 | 578-6 11-61 533-9 13-84 . 19-42) 538.4 518-5 | 580-8 10-94 | 534-7 14-21 . 19-19] 538-3 519-3 | 580-0 11-27 535-8 14.46 . 18-45| 539-0 524.8 | 578-8 11-48) 533-9 14-46 : 17:94} 538.2 530-0 | 578-2 11:10) 535-3 14-53 : 17-27| 538-2 533-2 | 578-4 10:94 | 536-3 14-70 ra 17-20] 538-2 535-4 | 578-5 10-63 | 535-4 14-89 . 16-59| 534-7 533-4 | 580-5 10-30] 536-7 13-79 3-6 15-94| 539-5 phe ia : ie 532-6 579-9 11-37 | 537-5 14-68 D 5 16-60 533-5 579:8 11-84} 537-7 14-53 ‘ 16:77 535-4 580-1 12-28 |.537-7 14-65 . 17-15 | 536-5 579-4 12-43 | 538-2 . 14-30 : 18-25 | 536-7 579-5 12-62} 539-9 15-01 : 18-94 537-3 580-6 13-14} 539-1 15-24 . 20-29 537-9 580-5 . 538-0 Bip 16-05 : 20-05 537-9 579-5 2. 539-0 16-82 . 19-59 | 537-6 579-5 . 539-6 16-82 2 | 18-10 537-6 580-2 . 539-6 17-06 : 16-77 | 538-6 578-9 . 539-8 17-09 3 | 568- 18-34 536-6 578-9 540-9 16-70 “ 19-17 BIFILAR. 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 position being appreciable, the micrometers were not altered. Jan, 224115 25m. Declination magnet commenced moving eastwards. 115 39™. Bifilar reading, 569°0. 11 44™. Bifilar reading, 5740 TrerM-Day OBSERVATIONS OF MAGNETOMETERS, 1845. 71 January 22, 23. Fesruary 21, 22. DECLINA- BiFILaR | BALance | DeEcLINA- Brrizaz | BaALance J DEcLiNA- BIFILaR | BALANCE DEcLINA- Biriuar | BaLance TION. Corrected. | Corrected. TION. Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected.| Corrected. is Se. Diy. | Mic. Div. fe 4 Sc. Div. | Mic. Div. Se. Diy. | Mic. Div. Se. Div. Mie. Div. oh. 6b, 104, 144, 25 19-75| 538-4 | 591-9 : 539-3 | 605-4 537-0 . : 534-6 19-31] 537-2 | 594-1 . 539-7 | 604-1 : 536-5 . . 533-6 20-27| 536-5 | 596-3 : 541-0 | 604-1 . 535-4 6 : 534-2 20-99| 539-0 | 598-4 : 541-0 | 601-0 534-3 . . 533-5 20:77| 534-4 | 601-1 : 540-1 | 600-1 532-2 : : 534.2 20-52} 535-0 | 603-7 : 539-8 | 599-2 533-1 . : 534.7 20-27| 537-6 | 605-5 : 538-9 | 599-3 532-3 : . 534.9 19-82] 532-5 | 608-5 . 539-2 | 598-0 533-5 . 534-3 17-40} 532-5 | 608-6 : 539-0 | 596-2 534-4 5 . 532-8 17-33| 534-3 | 610-4 . 539-3 | 595-7 535-4 : : 533-6 17-:04| 529-2 | 614-0 5 539-7 | 595-7 536-8 E 5 534.2 17-10} 525-4 | 616-8 . 540-2 538-6 . 89 | 533.4 3h, pe 115, 15%, 17-12 | 525-2 616-6 . 540-4 540-6 . . 533-3 18-07 | 526-8 615-3 . 540-2 -: 537-2 o D 533-9 18-90 | 527-5 615-1 ‘ 540-1 . 538-6 : ‘ 534-2 19-78} 524-8 | 615-7 . 540-6 D 540-1 20-85| 525-3 | 614-5 D 540-4 D 540-9. 21-57 | 525-2 614-3 . 539-6 537-2 21-07 | 526-6 608-8 c 538-4 537-6 20-77 | 528-6 | 608-2 D 539-7 534-9 19-61 | 532-4 609-4 D 540-0 532-8 19:04} 535-1 611-9 : 542-2 531-9 18-84 | 534-8 610-4 . 538-7 533-0 18-63 | 537-1 610-6 . 537-6 | 531-0 4h, gh, 12h. 18-68 | 538-2 | 611-1 . 535-8 527-3 18-60] 541-9 | 613-4 : 535-1 | 527-1 19-10} 541-5 | 615-6 . 534-8 | 525.4 19-51] 541-4 | 617-0 . 533-8 | 528-0 19-26] 542-7 | 617-8 . 532-9 529-4 19.28] 542-4 | 619-7 533-1 531-5 19-78] 540-9 | 622.4 +33 | 533-1 531-0 19-14| 536-9 | 623-7 76| 532-8 15-79| 533-0 18-99| 535-2 | 623-2 -84| 532-2 18-21} 531-0 19-07 | 534-0 | 622-0 . 530-8 18-40 | 528-5 19-14] 532-9 | 620-0 . 529-1 18-81 | 528-2 18-45 | 536-2 | 618-2 . 525-1 17-51} 530-4 5h, gh. 135, 17-20| 531-0 620-4 D 522-5 16-79 | 531-4 18-21 | 530-1 618-8 - 521-0 15-83 | 531-6 17-93 | 530-1 617-1 D 520-5 14-94 | 533-0 17-49 | 532-6 616-7 . 521-6 14-91 | 534-7 16-89 | 530-3 615-6 . 532-4 15-69 16-28 | 532-9 615-1 D 555-7 15-49 16-75 | 534-1 613-6 : 553-7 15-85 16-38 | 535-7 611-7 . 545-2 15-38 16-35 | 538-4 609-0 9- 536-3 15-20 16-28 | 542-9 606-5 . 531-1 15.27 15-86 | 542-4 606-1 : 534-6 15-38 15-99 | 540-0 606-0 : 534-1 14-60 Brrivar. Observed 2™ after the Declination, s=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. - 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. 234105. Extra Observations made. paceanan 4 TEeRM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845. Fepruary 21, 22. - BrirILaR | BALANCE Birizar | BALANCE DECLINA- Birizar | BALANCE DECLINA- BIrivaRr Observation, Corrected.| Corrected. Corrected.| Corrected, TION. Corrected.| Corrected. TION. | Se. Div. | Mic. Div. Se. Div. | Mic. Div. o a Se. Div. | Mic. Div. Sc. Div. 18%, 2aus on 6h, 533-9 | 543-6 518-4 | 548-2 | 25 21-44| 533-3 | 564-9 | 25 16-25] 533-7 536-2 | 542-8 519-5 ” 20-65! 533-0 | 564-9 16-80| 535-4 | 535-0 © 4 520-9 | 548-4 20:30} 535-3 | 564-8 16-95) 535-6 | 533-6 | 544-4 521-4 » 20:79} 536-8 | 565-6 16-80| 535-8 535-4 | 543-4 525-8 | 549-0 20-11} 535-1 566-8 16-45} 536-8 | 535-8 | 541-7 525-7 in 19-41 | 536-2 | 566-7 16-48} 538-0 } 537-2 | 541-6 527-0 | 548-9 19-37 | 536-0 | 566-5 16-32} 539.0 536-9 | 541-5 529-1 a 19-37) 538-5 | 566-6 16:59} 538-8 536-2 | 542-0 527-3 FA 19-14) 538-7 | 567-4 16-41} 540-7 I 533-9 | 541-7 528-1 | 548-8 19-49 | 540-0 | 568-5 15-71} 542-3 536-1 | 540-7 526-9 ” 20-43) 540-6 | 571-0 15-32) 543-3 534-0 | 540-4 528-1 | ss 19-76 | 535-6 | 573-3 15-47 | 540-1 194, 23h, ou a 535-1 | 540-8 529-5 549-4 | 25 19-19} 532-5 | 573-6 5 15-92] 538-8 | 535-1 | 539-3 530-0 | ,, 18-32] 531-6 | 574-2 16-12| 536-6 | 535-8 538-1 530-4 | ” 18-41] 533-1 574-9 15-94| 538-7 533-7 | 538-3 531-9 | 549-7 19-28| 537-7 | 575-7 15-88} 539-4 534-7 | 537-7 529-3 | a 20-13} 539-4 | 577-2 15-44} 539-2 H 535-3 | 536-7 27 -du mos 20-50} 538-1 | 579-8 15-09| 538-2 536-5 | 536-1 526-6 | 549-9 20-09} 535-2 | 580-7 15-12) 538-5 535-8 | 536-6 532-6 ny 19-59| 535-4 | 580-4 14:98} 539-5 537-1 | 536-0 527-9 + 19-51} 535-2 | 581-2 14-53 | 539-6 534-5 | 538-1 533-0 - 19-10} 536-1 | 582-9 14-30} 540-2 535-8 | 538-3 533-1 | 551-4 18:94} 537-7 | 583-1 14-17| 541-5 537-8 | 537-5 531-5 | es 19-62} 541-4 | 583-4 : 542-7 205, ob. 4h, 8h, 537-6 | 537-9 527-3 | 552-2 | 25 19-29! 536-9 | 586-3 14-33| 541-8 537-0 | 537-6 530-6 _ 19-93| 540-3 | 586-7 13-99| 542-3 537-9 | 537-5 529-1 | 551-8 20-67) 540-5 | 589-9 13-91] 540-2 538-0 | 538-2 529-8 A 21-56) 536-6 | 592-9 14-03| 537-8 533-4 | 539-5 528-1 . 20-40) 527-7 | 597-8 14.43| 537-3 533-7 | 540-0 530-8 | 553-7 19-91| 526-4 | 600-2 13-86| 537-2 | 536-6 | 539-3 531-2 * 19-37| 523-9 | 602-0 13-56| 536-2 535-6 | 540-2 531-5 3 17-74| 527-2 = 14-01] 536-3 534-6 | 540-1 531-1 | 554-6 16-82| 519-1 | 606-7 13-94] 535-9 | 537-1 | 539-2 532-8 | 555-9 16-65| 513-8 | 608-4 13-63| 537-3 ] 536-4 | 539-0 534-1 “ 14.67| 514-0 | 613-7 13-43] 537-4 534-5 | 539-1 H33:24 as 11-61} 520-4} 614-1 3 538-0 | \ Pals ve 52, on i 524-4 | 537-0 532-2 | 556-6 | 25 09-98] 527-5 | 617-0 12:09| 541-8 533-4 | 536-3 528-5 | 557-6 08-41] 529-3 | 619-5 12-72} 540-0 } 530-0 | 537-4 531-7 | 558-6 08-58} 535-3 | 621-0 12.02| 540.7 \| 527-9 | 539-3 529-7 | 559-5 09-26 | 541-2 | 623-5 12-40} 538-0 | 526-9 | 540-6 529-0 | 559-3 10-47| 540-4 | 625-8 09-35} 534-0 | 525-2 | 541-2 529-9 | 559-5 11-07} 543-9 | 622-6 06-54| 534-9 524-9 | 541-5 530-1 | 559-7 11-81} 540-8 | 624-3 05-79| 533-7 | 525-7 | 540-3 533-2 | 559-5 12-46| 540-4 | 622-3 02-99} 536-8 i| 525-2 ai 536-6 | 560-4 14-18} 540-9 | 619-2 02-15} 542-7 523-3 | 543-9 538-2 | 561-9 15-91} 538-3 | 616-4 03-75| 543-6 | 521-0 | 544.4 538-1 | 562-8 16-33 | 535-6 | 611-0 04-64} 545-3 518-7 “: 537-4 | 563-8 15-88] 533-7 | 610-3 . 546-1 Birizar. Observed 2™ after the Declination, k=0:000140. BALANCE. Observed 3™ after the Declination, =0-000010. Baa Corrected.| Corr Mie. Di 605:8 603-5 600.0 598-2 594.0 591-7} 589-7 | 587-2 583-6 | 582-6 582-2 582-6 | 581-8 583-3 581-7 5806 579-1 578-5 577-2 | 575-8 575:3 5741 573.0 | 573-0 572-7 | 575-2 576-7 576-5 | 578-3 578-7 580-0 579-7 579:0 577-2 575-9 | 578-1 578-0 577-7 578-2 578-2 | The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the foun 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. TrERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845. Marcu 19, 20. 73 DECLINA- BirtLar | BALANCE DECLINA- Birmar | Bavance | DeEcLina- Brrizar | BALANCE DECLINA- BIFILAR | BALANCE TION. Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. a us Se. Div. | Mic. Div. ° 4 Se. Div. | Mic. Div. P i“ Se. Diy. | Mic. Diy. e f Se. Div. | Mic. Div. | 104, 142. 18. 22h, | 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 | 08-56 | 521-5 573-1 01-93 | 532-8 ae 08-26} 528-0 476-6 13-52 | 523-4 524-8 | 08-50) 522-0 573-0 00-85 | 529-9 464:8 07-60 | 530-2 477-0 13-29 | 522-1 525-2 i 09-10} 530-7 570-6 00-77 | 524-9 465-6 07-85 | 530-1 480-5 12-43 | 517-3 525-3 ! 10-56 | 534-4 567-1 | 25 00-31) 522-4 464-1 08-92) 531-7+| 482-1 14-77 | 515-3 526-5 | 11-05} 535-1 565-2 | 24 59-44) 519-9 . 08-32) 535-2 482-9 13-86 | 517-4 526-2 H 3 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 SB} 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 aa | 45 15-59 | 538-6 546-8 07-34| 513-4 ES 10-67 | 538-3 484-6 14-80 | 511-2 529-9 | 90 15-86 | 538-9 541-7 09-35 | 510-5 469-8 11-51] 537-4 485-5 15-47 | 511-9 532-5 + oy 17-71 | 540-8 537-9 11-99} 511-1 | x 11.62! 536-4 486-5 16-84} 512-5 534-2 i a 114, 154, 198, 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 7 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 2 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 ef 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 Fe, 09-89 | 533-3 502-5 18-07 | 523-3 538-8 ' Tip. 16". 20%, ob, 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 Fy 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 “Fy 08-92 | 531-4 513-8 20-02 | 531-7 534-5 3: 10-06 | 529-1 491-4 04-84 | 537-1 461-0 08-68 | 531-8 516-7 21-23 | 531-5 534-3 09-12) 527-5 489-3 04-61 | 537-0 463-0 08-82) 531-0 517-5 21-43 | 531-2 533-8 09-73 | 524-5 487-4 04-15 | 537-0 “9 08-46 | 531-2 519-0 21-41 | 531-4 533-4 10-06 | 523-1 484-7 04-24| 536-8 464-8 08-92] 533-6 ~ 22-10 | 531-1 532-1 11-10} 524-9 484-1 04-19 | 536-8 466-6 09-49 | 531-6 520-2 21-66 | 528-1 532-4 13, lee Bins et 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 09-79 | 528-4 478-4 05-08 | 533-2 467-2 09-49 | 531-7 520-5 21-10) 527-1 531-8 09-86 | 529-5 477-0 05-49 | 532-3 471-5 10-01 | 530-9 521-2 20-85 | 526-8 533-4 09-54| 532-4 476-8 06-61} 531-6 472-6 10-09 | 531-1 521-4 21-17| 526-1 534-6 09-29 | 538-3 > 07-78 | 530-9 475-8 10-27 | 527-7 521-7 20-72 | 527-2 533-9 10-20) 537-1 476-0 08-72} 531-6 475-9 09-10) 529-0 521-7 20-60 | 533-4 532-1 09-33 | 539-6 475-2 09-32| 532-4 | 476-4 08-88 | 528-4 521-7 22-91) 546-5 530-5 08-26 | 542-0 475-2 09-54 | 533-6 475-9 08-85 | 530-6 A 22-64 | 539-5 531-4 07-20 | 543-3 472-9 10-09} 530-8 - 09-79 | 530-8 522-5 22-92) 539-8 530-9 05-63 | 540-4 7% 09-77 | 530-4 473-8 10-98} 531-1 523-1 22-67 | 534-9 531-8 04-79} 540-1 470-7 08-92 | 526-6 472-9 12-46 | 528-1 524-1 22-27 | 532-9 531-6 03-58 | 538-3 4 07-31 | 528-8 A 11-66 | 526-1 523-5 22.24) 534-1 531-8 Birizar. Observed 2™ after the Declination, k=0-000140. BALANCE. Observed 3™ after the Declination, k=0-000010. x. 194 9h—1} 0+, Extra Observations made. MAG. AND MET, oss. 1845. he temperature of the bifilar and balance magnets, and the observers’ initials, will be fo rvations of Magnetometers. hen double commas (,,) occur in the column for the balance magnetometer, the needle was examined, an ion being appreciable, the micrometers were not altered. und at the corresponding hours in the Hourly d no change from the previous 74 Trerm-Day OBSERVATIONS OF MAGNETOMETERS, 1845. T Gottingen | Marcu 19, 20. Aprit 23, 24, ’ lee 4 pees | Decurna- | Bremar | Bauance | Decuina- | Brerean | Bauance} Dexcrina- | Birman | Barance |] Decuins- | Brrwar | Banane servation.| TION. Corrected. | Corrected. TION. Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected.| Correct 7S So Din anemia eee Sc. Diy. | Mie: Div. J? 4 Se. Div. | Mio Div. J, ° 7 Se. Div. | Mie, Di 2h. 6, 10". 14%, 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 3 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 H 21-48 | 536-4 532-6 10-48 | 528-9 808.4 10-56| 551-5 335-1 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 a 08:79 | 540-9 % 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 a 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 | rd 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 3h, ah pL 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 5) 20-00} 546-0 | 530-8 15-31) 530-4 699-2 09-82 | 542-7 | Ms 09-08 | 540-5 10 20-11) 547-2 530-9 14-46 | 534-5 679-2 09-87 | 541-5 535-9 08-82 | 540-6 15 19-79 | 545-7 532-1 15-12} 532-7 669-1 09-33 | 542-7 Pr 08-41) 541-0 20 19-64) 543-1 534-0 15-58} 531-9 658-9 09-47 | 543-4 533-8 08-93 | 541-3 25 19-08} 545-4 | 533-5 15-49} 532-4 648-9 09-29 | 542-8 A 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 35 | 19-39 | 550-4 537-6 14-91} 541-9 630-5 10-30 | 537-4 536-3 10-06 | 538-1 40 19-66 | 537-8 542-8 15-45 | 541-6 625-6 10-23 | 537-6 rn 10-16 | 538-7 45 18-10} 543-2 541-8 14-98 | 538-3 623-4 | 10-31 | 542-4 533-2 09-76 | 539-3 50 19-07} 551-4 | 542-3 14-30} 539-1 | 620-1 11-10} 541-4 531-9 09-26 | 539-9 55 18-60} 552-5 545-0 14.43 | 535-2 619-3 10-47| 541-8 529-6 09-02) 540-4 4h, 8h. none 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 BY 18-03 | 537-4 | 550-0 14-73 | 532-4 616-4 10-43 | 542-3 08-73 | 539-5 10 | 17-63 | 529.4 550-5 15-01 | 530-6 615-0 10:33 | 541-9 s 08-25 | 539-6 15 17-20| 538-1 548-3 13-86 | 534-1 619-2 10-13 | 541-7 528-9 08-11} 538-2 20 17-29) 554-2 | 545-9 13-77 | 534-6 607-6 10-09 | 540-5 A 07-65 | 538-1 25 18-03 | 567-1 547-6 13-69 | 535-0 603-3 10-16 | 540.4 ny 07-71 | 537-2 30 | 17-63 | 562-4 553-0 13-36) 535-2 601-0 09-93 | 540-1 530-3 07:52 | 536-6 35 i} 17-26) 555-9 | 557-0 13-50| 536-1 | 599-3 09-15 | 538-4 re 07:34 | 536-6 40 16-86 | 557-3 559-5 13-77 | 536-0 596-4 10-04 | 539-6 532-1 07-20 | 536-1 45 i) 16-99 | 559-7 562-1 13-72} 537-1 592-5 10-36 | 541-3 i 07-29 | 535-9 50 16:59 | 560-6 566-1 13-72| 537-1 590-7 10-60 | 542-4 | i 07:35 | 536-3 55 17-22) 557-6 | 571-8 13-29] 536-7 | 589-3 10-90 | 542-6 | 531-0 07-47 | 535-7 5a, gh, 13% 174; ' 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| 536-0 526-7 5 | 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 | 554-7 595-2 12-92| 535-7 | 583-6 10-77 | 539-7 ¥ 07-34) 535-9 | 530-8 15 20-20 | 543-8 610-3 13-25 | 536-3 582-0 10-45 | 539-4 531-3 07-54) 536-1 531-8 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 rl 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 YY 35 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 | 575-9 11-17 | 541-8 530-2 07-18 | 536-8 533-5 45 12-42) 546-0 | 652-1 13-52 | 536-0 | 573-7 11-25 | 543-7 527-4 07-31) 536-9 533-5 50 | 11-91} 542:0 | 674-9 13-52 | 535-6 572-8 11-74) 545-4 526-7 07-04 | 536-7 FA 55 10-63) 541-0 | 717-7 13-66 | 536-0 | 572-2 11-19) 544-8 | . 07-35 | 536-5 532-9 BiriLAk. 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. March 204 155. Extra Observations made. =J Or TrRM-Day OBSERVATIONS OF MAGNETOMETERS, 1845. Apri 23, 24. ] DECLINA- BIFiLak | BALANCE DEcLINA- BIFILAR | BALANCE DECLINA- Brrinar | BALANCE DECcLINA- Birinarn | BALANCE TION. Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. ie ¢ Se. Div. |! Mic. Div. Se. Div. | Mic. Div. P 4 Se. Div. | Mic. Diy. Se. Div. | Mie, Div. 185, 22h, on 6h. 25 07-13 | 536-5 : 522-7 | 542-8 537-4 | 521-5 5) 85, 560-7 | 571-1 07-11) 536-1 : 521-4 | 543-1 538-2 | 522-0 ‘ 563-5 574-0 07-29 536-5 ‘ 522-7 | 542-1 543-2 | 521-9 05) 567-2 574-3 07-81) 536-4 : 523-4 | 541.4 540-7 | 522-9 +32) 568-6 | 575-5 07-81 | 535-8 : 523-2 | 541-9 541-6 | 524-6 -05| 965-8 | 580-8 07-72} 535-1 - 523-3 | 541-5 538-4 | 526-1 : 562-1 | 583-2 08-05 | 534-3 522-1 | 541-9 : 539-9 | 527-9 34) 560-3 | 587.4 08-18 | 534-4 b 521-1 | 542-1 535-7 30- D 550-6 | 591-4 08-48 | 535-6 : : 521-4 | 541-0 529-4 . : 547-2 | 594.0 08-32) 535-1 D 523-3 | 539-5 534-6 32-6 39) 547-4 ‘ 08-38 | 535-6 di 524-2 | 536-7 535-0 : 39| 546-1 | 592-0 08-65 | 536-0 524-2 | 536-6 526-7 3 By 543-7 | 19), 23h, 3h, Tian 08-56 | 535-6 : 523-4 | 537-1 528.4 37-2 | 25 15- 545-6 | 08-26 | 535-5 ; 523-2 | 536-9 528-3 : . 546-9 | 08-28 | 535-7 . 522.2 | 536-5 543-1 5 . 547-4 07-71| 535-6 : : 521-5 | 536.4 546-0 2. . 547-0 | 08-16 | 535-5 . : 520-8 | 536.2 549.4 | f . 546-8 08-18} 536-0 : 521-8 | 535-7 548-3 | 6 : 543-8 | 08-72| 535-6 E 522-1 | 534-7 : 555-7 : a 544-9 | 08-55| 535-0 . 522-3 | 534-7 : 558-2 - 3- 544-7 | 08-18] 535-4 E 522-6 | 533-3 563-1 “3 z 542.7 | 08-28| 534-9 E . 523-1 | 532.7 571-5 | 529. 13) 546-5 08-14| 535-1 4.17| 524-4 | 531.7 578-6 : -23| 544-3 08-14] 533-9 i 524-8 | 530-9 568-6 : -53| 544.3 204. 0%, 4h, 07-81] 534-1 6 523-7 | 530-6 565-5 07-49 | 533-3 523-6 “ 563-9 06-97 | 533-0 523-3 | 530-7 562-1 06-93 | 530-6 . 522-8 | 531-1 563-7 07-34 | 529-5 : 522-7 | 531-0 563-0 07-82} 530-6 : 522-9 | 530-6 556-8 08-34) 530-9 : 522-5 | 530-5 553-3 08-61) 530-2 | 542. 522-4 | 529.7 552-2 09-32 | 529-7 522-5 | 528.2 553-6 09-35 | 530-2 : 522-6 | 528-3 552-7 09-46 530-3 : 523-7 | 526-8 549-7 09-60} 530-4 5 524-8 21h. ie 09-69 | 530-6 . 525-1 10-16} 529-9 09-76| 529-1 09-66 | 528-0 : 09-56 : : D : 20-03 09-35 : : 3 . : 19-98 09-33 : . c ‘ 20-25 08-82 . . . : 19-64 09-00 . . : . 19-64 08-93 | : * J 20- 19-51 08-86 3. c : 6 19-21 08-88 | . . ‘ . 19-24 Or Or Or Or Gr Gr Or Or Or Or Or Gr Or Or SDANKHINAG BaLance. Observed 3™ after the Declination, k=0-000010. he temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly ervations of Magnetometers. é e Vhen double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the previous 76 TrERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845. Gottingen || May 30, 31, oe | : Declination || Decrina- Brrizar | BALANCE | DEcLINA- Biritar | BALANCE DECLINA- Birizar | BALANCE DeciLina- | BirrLaRr | BALANoE Observation. TION. | \Coxrechars| Corrected: TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corree Min. = F, Se. Div. | Mie. Div. 2 f Se. Div. | Mic. Diy. ed a Se. Div. | Mic. Div. e f Se. Div. | Mie, Diy 10%. 14, 18}, pet 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 5 09-82} 540-8 | 530-3 04-59 | 538-7 Fy 03-65 | 542-6 | 458-9 fF +e eee 524-1 10 09-57 | 542-3 528-2 03-25 | 540-6 4553 03-63 | 543-8 | 459-3 15-38 | 526-0 15 09-22} 541-5 527-7 01-45 | 541-8 452-3 03-50) 544-1 460-8 15-74| 526-1 20 08-45 | 540-5 527-8 00-60} 541-5 | 451-0 03-16} 545-2 | -462-9 16-10 | 527-3 25 08-25) 538-2 529-2 00-33 | 539-9 9 03-47 | 544-6 464-4 17-04} 530-1 30 07-74| 536-6 530-3 00-20 | 538-0 450-2 03-09 | 542-8 466-5 17-51 | 532-7 2 35 | 07-81} 535-6 529-8 00-42 | 534-9 ny) 02-87 | 542-8 470-6 17-86 | 533-5 472. 40 | 07-82) 536-4 528-9 00-17 | 533-7 449-6 03-20| 544-0 | 472-8 18-75 | 530-7 471. 45 | 08-06) 536-1 527-7 00-77 | 533-7 449-7 03-50) 543-2 | 475-5 18-13] 529-8 | 4714 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 47 i _ | jE ats 194, 23h, 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 47 5 06-64} 533-8 522-0 03-09 535-6 442-8 04-31) 540-4 | 479-6 17-73) 525-4 472: 10 05-94 | 531-5 521-0 02-86 535-4 - Ff 04-21 | 540-1 480-8 17-24) 524-9 | 47 15 | 05-33 | 532-6 | 518-9 02-82) 534-4 441-5 04-64 | 539-6 482-4 18-11) 523-5 | 473 20 04-34} 535-9 | 516-9 02-96 | 533-3 442-4 04-76 | 538-1 483-1 18-18 | 523-4 | 473. 25 02-42| 532-7 | 514-5 03-27 | 533-0 | 445-0 04-78 | 536-3 | 484-2 17:73) 525-9 | 472 30 01-36} 531-7 514-3 03-23 533-4 446-2 04-91 | 535-1 484.9 18-61 | 527-7 471 35 01-11| 532-7 513-0 03-37 | 534-2 445-6 04-53 533-2 | 485-6 19-17) 529-0 | 472. 40 | 01-19| 534-2 | 511-6 03-27 533-6 449-1 04-78 | 533-1 485-9 18-63 | 527-5 | 472: 45 01-61 | 535-0 510-9 03-43 | 533-7 451-9 04-91 | 529-1 486-8 18-14 | 522-7 474. 50 02-25| 534-3 | 509-3 03-23 533-9 453-2 04-39) 528-9 486-8 18-52 | 523-3 476: 55 } 02-91 | 533-9 508-5 03-37 534-1 455-3 04-59 | 526-3 487-7 19-24| 521-1 | 4789 12, 164, 204, ob. 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 H 04.44 | 530-8 507-0 04-07 | 534-2 458-4 05-29 | 522-9 489-2 20-38 | 517-8 483: 10 05-09) 532-0 504-7 04-37 | 535-2 459-1 05-45 | 521-8 490-4 21-32) 518-6 48 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 | 482i 25 05-76) 530-5 | 498-2 06-06 | 536-8 468-6 06-86) 515-5 492-1 22-47) 520-2 | 4834 30 05-32| 530-4 | 496-7 06-16 | 537-3 464-8 06-79 | 514-3 492-6 22-57 | 522-1 484- 35 05-05 | 531-3. | 494-6 07-07 | 535-0 466-6 06-79 | 513-4 491-9 23-31 | 522-1 484. 40 04-71) 533-4 | 493-5 07-13 | 534-5 468-7 08-06 | 513-4 491-3 23-68 | 523-7 | 483+ 45 05-00 | 534-1 492.4 07-47 | 533-9 | 468-9 08-99 514-6 491-6 23-88 | 525-2 483» 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 | bs Bi aes 21h, [ee 0 | 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 | 486-4 5 | 05-29 | 533-3 488-8 10-95 | 532-3 472-1 14-65 | 516-6 489-5 24-67 | 521-5 48751 10 | 05-52| 533-9 | 486-1 11-69 | 533-7 470-8 14-46 | 516-4 486-7 23-86 | 526-1 487: 15 05-50 | 533-1 483-0 11-44) 535-5 | 467-5 14-92| 518-7 484-2 23-81| 522-4 | 4914 20 =| 05-99 | 532-6 a 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 | 549-7 483-8 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 | 525-8 497-2 45 veers | 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 55 06-26 | 534-1 466-1 04-34] 541-2 | ,, 15-32 525-3 476-6 28-22| 539-9 496-6 Biritar. 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. i 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. May 30, 31. TermM-Day OBSERVATIONS OF MAGNETOMETERS, 1845. June 18, 19. a 2m m. 0 25 31-52) 534-6 520-8 | 25 11-96} 539-6 6 31-75 | 538-3 523-7 12-08 | 540-4 10 31-92} 540-1 525-5 11-91 | 542-8 5 31-01) 536-9 526-9 11-71 | 544.2 20 30-04] 534-8 536-9 11-46 | 545-2 25 29-50 | 529-6 541-1 11-44, 546-9 30 29-06} 531-7 543-0 11-21) 551-5 30 29-14] 531-0 544-3 11-25! 552.9 40 28-40 | 529-7 544.8 11-57 | 549-4 45 26:35 | 529-9 545-7 12-11 546-7 20 25-47 | 532-4 546-7 12-20, 547-6 55 25-19| 537-0 546-6 11-89 | 547-1 4h, 8h, 0 25 24-73) 539-1 | 546-1 | 25 11-39) 544.4 5 24-17] 542-6 | 544-5 11-37 | 544-3 0 23-19] 540-4 | 545-4 10-77 | 544-4 Ld 22-71) 545-8 | 543-0 10-14) 545-6 20 22-65| 550-8 | 539-1 09-82} 548-3 21-71| 550-6 | 544.4 08-79 | 549-5 21-34] 551-1 | 543-8 07-99] 552-8 20-89 | 546-6 | 546-1 07-98 | 553-3 20-08} 530-6 | 551-4 08-56 | 551-9 15 19-59| 531-7 | 552-5 09-26| 549-6 50 18-16] 533-4 | 551-1 09-53 | 546-5 5! 542-8 . 5b, 9. 0 25 17-06| 545-7 | 548-4 | 25 09-66| 546-3 5 16-87] 546-9 | 545-8 09-86 | 545-6 10 16:86] 540-7 | 545-8 10-00] 546-3 15 17-24) 532-5 | 546-7 10-16 | 547-0 20 16:70| 531-7 | 545.8 10-36} 545-7 25 16:19} 534-5 | 543.9 10-48] 546-5 0 16-08} 544-3 | 539.3 10-30 | 546-3 35 16:39} 555-0 | 530-9 10-33| 546-0 16-77] 561-0 | 529.4 10-77 | 546-2 16-59| 560-6 | 528-7 11-07 | 546-2 16-19] 556-0 | 532-9 11-30] 545-1 15-14} 550-4 | 537.9 11-28] 544-6 DEcLINA- BiriLak | BALANCE DECLINA- Birizar | BALANCE TION. Corrected. | Corrected. TION. Corrected. | Corrected. P, .f Se. Diy. | Mic. Div. ] ° s Se. Div. | Mic. Div. on 6. 25 29-93) 531-5 500-6 | 25 14-40| 544-2 544-0 31-34| 531-8 501-8 13-47 | 539-2 547-2 33-43 | 537-2 498-4 12-75 | 536-5 550-9 34-44 | 548-4 493-3 12-31 | 536-7 551-8 | et 33-53 | 559-4 488-9 11-99 | 536-2 553-5 f <3) 30-79 | 556-7 490-7 11-62} 558-4 551-7 30 29-27| 547-0 | 496-7 11-51} 541-8 550-6 i 29-16 | 543-5 502-1 11-51 | 543-0 549-3 f 29-36| 537-8 | 506-9 11-44| 545-6 | 548-0 f 30-10 | 536-0 511-5 11-52.) 545-3 546-5 31-26 | 532-0 516-2 11-57 | 540-4 546-9 j 31-86 | 533-7 518-5 11-82 | 539-8 544-8 Ys 543-2 543-1 540-2 537-3 534-6 532-2 529-8 528-9 529-2 529-5 527-0 525-8 524-7 523-8 523-4 522-5 521-5 521-1 521-4 521-5 521-7 521-8 522-9 525-5 526-9 527-0 525-3 526-1 525-2 525-2 526-5 526-0 525-9 525-3 DECLINA- TION. ° 25 25 25 25 , 10-63 DECLINA- TION. Brritak | BALANCE Corrected.| Corrected. | Se. Div. | Mle. Diy. 10°. 547-9 | 502-4 | 25 10-16 | 547-9 | 501-0 10-27 547-5 | 500-3 10-40 547-2 | 500-6 10-34 547-7 | 500-0 10-07 547-8 | 499-7 09-93 547-4 | 499.6 09-98 546-8 | 499-5 09-56 | 547-1 | 499-0 09-66 | 546-0 | 499-6 09-74 544.9 | 499.4 09:33 546-3 | 499-2 09:56 11%. 546-9 499-1 | 25 09-87 547-2 498-3 09-80 546-9 498-3 10-03 546-8 498-7 10-01 545-9 498-7 09-80 544-7 | 498-8 09-96 546-1 498-5 10-09 546-5 497-9 10-06 546-1 497-9 10-00 546-1 497-7 09-93 545-9 497-5 09-79 545-6 497-9 09-69 19%: 546-0 | 497-6 | 25 09-49 546-1 497-0 09-39 545-4 497-0 09-40 543-9 497-1 09-15 541-2 499.2 09-29 540-8 499-8 09-20 542-4 | 499.2 09-29 542-9 498-4 09-05 543-7 | 498-1 09-29 544.5 497-6 08-97 545:8 496-9 08-58 545-3 496.2 08-55 13°, 545-3 495-2 | 25 08-14 545-3 496-8 08-34 545-3 494.4 07:94 544-8 3 08-11 544-4 494.3 07-81 545-1 493-9 07-44 545-1 490-8 07-99 544-7 491-9 07-62 544-8 -| 492-3 07-38 545-1 492.2 06-36 545-2 cf: 07-49 545-3 | 489-3 06-77 BiFILaR | BALANCE Corrected. | Corrected. Se. Diy. Mic. Diy. | 490-3 488-9 489-1 488-3 487-7 487-0 489-1 489-3 489-5 ” 488-9 487-9 487-2 487-6 486-9 487-5 488-8 489-0 BiriLar. Observed 2™ after the Declination, k=0-000140. BALANCE. Observed 3™ after the Declination, s=0:000010. rvations of Magnetometers. | Position being appreciable, the micrometers were not altered. ‘The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly hen double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the previous 78 TeRM-DAy OBSERVATIONS OF MAGNETOMETERS, 1845. Gottingen JUNE 18, 19. Mean time of =. F Declination || Dgcnina- ] Brritarn | BALANCE DECLINA- BiriLar | BALANCE Dectina- BrrinaAR | BALANCE DECLINA- Birttar | BALAN} bservation. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected.| Corrected. TION. Corrected. | Corrected ! =e a : Min. \ shim rity Se. Div. | Mic. Div. } ° q Se. Div. | Mic. Div. | ° , Sc. Div. | Mic. Div. | ° v Se. Diy. | Mic. Diy, 18h. ppt on 6, 0 25 05-89 | 537-9 494-9 | 25 08-79| 526-0 488-8 | 25 19-05 | 543-0 468-6 | 25 11-35] 548-5 493.2 5 06-41 | 537-5 494-2 09-03 | 525-5 488-0 19-07 | 543-2 468-7 11-03 | 548-9 492.8 10 | 04-91 | 537-8 | 495-6 09-49 | 524-2 488-1 19-24} 541-1 469-3 10-95 | 549-1 492.2 15 | 05-42 | 537-8 495-8 09-54 | 523-3 487-2 18-95 | 538-4 471-4 10-83 | 549-2 492.5 20 05-11) 537-8 496-5 10-20 | 522-7 486-5 18-87 | 541-1 472-0 10-72 | 550-6 492. 25 05-45 | 537-1 496-5 10-23 | 522-9 485-6 19:07 | 545-8 471-2 10-56 | 549-2 492-5 30 05:76 | 538-0 496-7 10-30 | 523-1 485-6 19-08 | 546-5 471-3 10-41 | 549-5 492. 35 05-72 | 536-8 497-0 10-67 | 523-1 485-1 19-04 | 545-8 472.2 10-43 | 548-7 492.9 40 05-87 | 536-8 496-6 11-10} 523-0 485-5 19-07 | 545-9 472-0 10-38 | 548-6 493-6 45 05:92 | 536-9 499-6 11-32] 522-5 484-9 18-94 | 545-9 472-5 10-45 | 548-3 “6 50 05:58 | 536-5 500-1 11-72} 521-9 485-5 18-75 | 546-1 472-5 10-45 | 548-8 494. 55 05-35 | 537-1 498-7 11-93 | 523-1 485-5 18-68 | 545-6 473-3 10-56 | 549-7 194, 238, 3h. 7h, 0 25 04-89 | 536-2 497-0 | 25 12-33| 524-1 486-5 } 25 18-52) 543-0 473-7 | 25 10-65| 549-5 5 04-24) 534-7 496.2 12-67 | 525-1 487-1 18-21 | 542-3 473-9 10-25 | 546-8 10 04-08) 535-4 495-6 12-96 | 526-1 486-7 17-93 | 543-4 474-6 10-41} 547-0 | 15 04-41) 536-4 496-2 13-64| 525-9 486-9 17-70 | 542-5 475:3 10:30 | 547-7 | 20 04-44| 536-4 495-0 14-03 | 525-2 487-5 17-42} 537-9 476-5 10-54 | 547-7 25 05:30) 535-7 495-4 14:57 | 524-9 486-9 17-17| 541-4 477-1 10-65 | 548-4 30 05-08 | 534-3 495-1 14-55 | 526-4 485°3 17-15 | 538-9 478-3 10-77 | 549-0 35 04-78 | 533-9 495-3 15-01 | 527-2 484-0 17-04 | 544-3 480-1 11-00 | 549-7 40 04-10) 534-3 495-2 15-44} 527-3 483-1 16:82 | 542.4 481-7 11-10} 549-4 45 05-05 | 535-2 494-3 15-64 | 528-2 482-2 16-70 | 542-0 482-0 11-10} 549-9 50 05-18| 534-3 494-7 15-99 | 528.4 480-8 16-55 | 543-0 482.4 11-30} 550-1 55 04-81 | 534-2 494-7 16-46 | 529-1 479-9 16:55! 544-2 482-8 11-30} 550-7 | 204, on; 4h, sh, 0 25 05-32 | 533-7 495-4 | 25 16-75 | 529-7 | 478-7 | 25 16.33) 544-5 483-3 | 25 11-17 | 549-0 5 05-55 | 532-9 495-6 17-06 | 530-5 478-2 16-19} 545-0 484.3 11-30 | 550-8 10 05-70 | 531-4 494.9 17-29 | 531-0 477-9 15-96) 546-6 484-9 11-00} 550-4 15 04-68 | 531-9 495-1 17-39 | 531-6 477-3 15-89| 546-9 485-9 11-03 | 549-5 20 05-53) 532-9 494-2 17-61] 532.8 476-4 15-74| 546-6 486-4 10-97 | 549-3 | 25 05:69 | 532-5 494-6 17-49 | 534-5 475.0 15-76| 547-2 487-2 10-75 | 549-4 30 05-62| 531-7 | 495-0 17-46 | 535-6 474-1 15-71} 546-9 488-3 10-75 | 548-6 35 06-81 | 530-0 494-9 17-40 | 535-8 472-9 15-49| 547-0 489-4 10-60 | 547-2 40 06-21 | 530-2 | 494.8 17-37 | 536-5 473-0 15-36 | 547-4 490-3 10-67 | 546-8 45 06-63 | 529-9 494-8 17-47| 536-4 | 472-0 15-22) 546-4 490-9 10-77 | 547-3 50 06-46 | 529-0 494-9 17-44 | 537-7 471-8 14-80 | 546-2 491-5 10-70 | 547-0 55 07-08 | 528-3 493-7 17-56 | 538-3 471-4 14-55 | 546-5 492-4 10-80) 546-5 | 2h, hs 5h, gh, 0 25 06-37 | 528-0 | 491-9 }| 25 17-61| 537-8 471-6 | 25 14-55| 547-8 492-6 | 25 10-63| 546-9 5 06-70 | 529-5 491-5 17-56| 539-9 471-1 14-17| 547-9 493-1 10-90 | 547-5 10 07-20) 529-0 491-1 18:03} 540-2 471-4 13-90 | 547-6 493-6 10-68 | 547-1 15 05-62 | 529-7 489-0 18:00} 539-2 472-3 13-63 | 547-4 493-6 10-63) 547-1 | 20 07-27 | 527-1 493-1 18-01 | 539-1 472-5 13-36] 548-1 493-7 10-75 | 547-1 | 25 | 07-45 | 526-0 494-2 18-10} 541-4 472-4 13-20) 549-2 493-6 10-60) 546-9 30 I 07-87 | 525-3 494-6 18-25] 542-1 472-2 13-05 | 548-9 493-7 10-43 | 546-4 | 35 ] 06-77 | 526-0 493-2 18-47 | 543-1 471-6 12-60 | 546-7 493-7 10-61} 546-1 | 40 | 06:59 | 525-5 491-5 18-79 | 541-5 471-3 12:33 | 546-7 493-8 10-40 | 545-9 45 07-25 | 525-5 a5 18:77 | 542-2 469-8 11:99} 547-1 494-6 10-47 | 545-8 50 07-29 | 526-8 489-2 18-81] 541-2 469:5 11-74 547-2 493-6 10-74} 545.9 55 08-11) 526-4 489-1 18-90} 541-4 468-7 11-51| 546-8 | 493-4 10-54) 545-7 Biritar. Observed 2™ after the Declination, k=0-000140. BaLancr. Observed 3™ after the Declination, k=0000010, 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. 7 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. TrerRM-DAy OBSERVATIONS OF MAGNETOMETERS, 1845. 79 gs ‘ttingen Jury 23, 24. ot me clination DeEctina- Brritar | BALANCE DEcCLINA- BIFILaR | BALANCE DECLINA- Brr1var | BALANCE DEcLINA- | Brrinar | BALANCE ervation, TION. Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. \e s Sc. Div. | Mic. Div. 2 4 Sc. Div. | Mic. Div. 2 4 Sc. Div. | Mic. Div. 5 # Se. Div. | Mic. Div. LOM 14°. 18". 225. 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 10-33 | 548-2 | 499-1 08-92} 543-0 | 481-1 11-41} 536-4 | 467-3 06-71| 532-5 | 475-9 09-96| 549-0 | 498-5 08-70} 545-7 | 480-6 11-37| 536-5 | 464-8 06-88} 531-9 | 474-4 10-63} 549-5 | 498-5 09-69} 543-1 | 481-7 11-27} 537-2 | 464.3 07-18| 531-9 | 473-5 09-66| 550-0 | 498-0 09:37 | 542.9 | 481-5 12-38) 537-6 | 464-2 07-31| 531-1 | 473-0 09-54) 549-7 | 498-4 09-15| 543-9 | 481-2 12-31] 539-1 | 463-7 07-31] 531-0 | 471-9 09-47| 549-6 | 497-8 09:19} 543-3 | 481-5 12-89} 539-2 | 462-7 07-47| 531-1 | 470-5 09-46} 548-9 | 497-7 09-47 | 542-6 | 481-5 12-98) 539-3 | 461-7 07-51] 531-0 | 469-4 09-54| 549-5 | 497-8 09:39 | 542-4 | 481-5 12-51| 539-8 | 461-1 08-41} 532-8 | 468-5 09-60} 549-2 | 497-2 09-39} 543-0 | 481-5 11-71} 541-7 | 460-3 09-39| 531-4 | 469-2 09-64} 549-5 | 496-2 10-74| 542-6 | 481-5 10-87 | 543-0 | 460-0 09-54} 530-8 | 468-7 | 09-87| 549-6 | 495.7 10-94] 543-9 | 480-1 11-00 540-9 | 460-1 09-42! 529-0 | 467-7 i 115, 15%, 19%. 23h, 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 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 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 07-08 538-2 | 474-2 10:06 529-0 | 470-2 q 12h 16%, 208. or. 0 25 09-84| 549-0 | 485-0 | 25 11-91) 541-8 | 478-6 | 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 29 10-50| 549-8 | 479-6 12-35) 545-1 | 468-6 05-38| 538-2 | 475-8 11:74| 527-8 | 471-8 0 09-93| 549-3 | 477-6 10-98; 546-9 | 468-5 05-15| 537-9 | 476-3 12-16) 526-9 | 471-7 30 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 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 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%, Aa 2 ike 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 3 08-18] 546-6 | 479-2 10-63| 542-0 | 469-5 04:64} 536-5 | 477-4 13-50, 528-5 | 476-5 0 08-18] 546-3 | 478-2 09-82) 541-2 | 471-8 04-78 | 535-5 | 477-3 13-84| 528-5 | 477-4 5 08-65| 546-2 | 478-6 10-70} 541-0 | 473-1 04-73 | 534-4 | 477-7 14:03} 531-2 | 478-2 09-32} 544-9 | 478-7 11-:77| 538-4 | 474.2 04-28] 536-3 | 477-1 14-17] 533-5 | 478-7 09-15} 544-7 | 479.6 12-02) 535-6 | 474.3 04-75} 536-0 | 477-5 14-20| 535-4 | 480-0 09-42) 545-2 | 479-7 11:57} 535-1 | 474.4 05-20| 536-2 | 478-6 14-73 | 535-8 | 480-5 09-62} 545-3 | 481-1 10-83) 535-0 | 474-0 05-43 | 533-8 | 478.6 14-71| 535-6 | 482-3 09-60} 543-9 | 480-8 10-97| 535-7 | 474-0 05-50| 534-5 | 478-6 14-77 | 532-9 | 484-0 09-33| 544-4 | 480-2 11:25| 536-1 | 473-8 05-83 | 534-1 | 479-1 14-46} 530-3 | 486-2 09-71) 545.8 | 480-8 11:27! 536-3 | 471-9 06-14| 533-0 | 478-8 14-41| 528-5 | 487-8 09-76| 544-5 | 480-8 11:17! 537-0 | 470-2 06-10} 533-1 | 477-9 14:30} 526-8 | 488-3 BIFILAR. Observed 2" after the Declination, — 0-000140. BALANCE. Observed 3™ after the Declination, & = 0:000010. ‘The temperature of the bifilar and balance magnets, and the observers’ initia!s, will be found at the corresponding hours in the Hourly rvations of Magnetometers. TERM-DAY OBSERVATIONS. OF MAGNETOMETERS, 1845. Gottingen | Jury 23, 24. Aveust 29, 30. ce a | ° Declination | Obs - DECLINA- BIFILAR | BALANCE DECLINA- Brrinar | BALANCE = | Brritar | BALANCE DEcLINA- BIFILAR BALANcE seo TION. Corrected. | Corrected. TION. Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected Min. ea £ Se. Diy. | Mic. Div. if Se. Div. | Mic. Diy. £ if Se. Div. | Mic. Div. Se. Div. | Mic. Di } gb, 6". 10%, 14, 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 D) 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 ior | 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 39 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) 539-9 488-0 13-10} 558-8 556-7 | 24 59-01 | 546-7 347-4 | 24 59-51) 515-1 328-4 | 16:50 | 540-3 488-5 558-4 535-0 350-5 513-4 334:8 | 3h, / 74, 114, 154, 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 | Di 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 Dee 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 | 342-8 4h, 4 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 06-68 531-2 342.2 | 14-53 533-5 | 347.6] ules 0 25 15-67] 561-1 | 530-0 25 04-10| 534-1 be 15-69| 560-1 | 532-1 02-89 | 533-5 10 15-71] 554-8 | 535-9 02:10} 535-3 ie || 14-06] 552-6 | 538.9 03-52 | 535-2 20 13-64] 555-3 | 540-9 04-08 | 533-5 25 12-95 | 558-7. | 541-7 03-97 | 534-5 30 13-52] 557-3 | 544.3 04-07 | 535-4 35 | 13-96| 553-4 | 547.3 04-76 | 534.0 40 | 13-79| 552-5 | 548-6 03-81 | 533-6 45 | 14-46] 553-1 | 551-0 04-58 | 534-0 50 | 14-92] 552-8 | 552.3 05-50 | 535-1 14-37 536-9 Birizar. 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. July 244115, Extra Observations made. i Aug. 292105, 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 10%. | TrERM-DAy OBSERVATIONS OF MAGNETOMETERS, 1845. Aveust 29, 30. 81 DEcLINA- BIFILAR | BALANCE DEcLINA- Bririzar | BALANCE DEctLiNa- BiFinar | BALANCE DECLIN4- BrritaR | BALANCE TION. Corrected. | Corrected. TION. Corrected.| Corrected. TION. Corrected.| Corrected. TION. Corrected.) Corrected. C. “ | Se. Div. | Mie. Diy. % za Se. Div. | Mic. Div. 5 “f Sc. Div. | Mic. Div. s 4 Sc. Div. | Mic. Div. 18h, 22h. on 6h, 25 08-28) 535-5 379-1 | 25 13-43) 521-4 452-0 | 25 16-93) 536-6 479-8 | 25 10-09| 548-4 456-9 07-72} 533-5 379-8 14-30| 517-5 458-4 16-57 | 534-6 481-4 10-00 | 544-0 457-2 07-74) 531-4 381-7 15-20} 517-3 460-1 16-52 | 530-7 484-4 09-89 | 549-9 456-6 5 07-40 | 530-9 384-5 16-65 | 521-7 461-2 16-62 | 529-0 486-6 09-29 | 551-2 457-2 0 07-60 | 530-4 388-5 17-09 | 520-7 462-2 16:65 | 535-9 485-8 09.49 | 548-0 459-2 25 07-60 | 531-4 394-2 16-32} 520-6 462-8 17:19} 536-2 486-8 08-05 | 545-1 461-0 0 08-72} 531-3 398-9 16-08 | 521-0 463-0 17-44 533-5 488-3 07-51 | 543-5 465-4 35 09-06 | 532-7 402-5 15-34} 520-3 462-9 17-71 | 535-3 489-2 06-41) 536-5 470-2 10. 09-54 | 534-7 406-3 14-17 | 522-9 462-6 17:39 | 535-9 490-4 05-70 | 534-1 475-5 45 10-60 | 532-3 409-8 13-22 | 524-1 464-1 17-49 | 529-8 492-5 04-98 | 531-6 479-6 50 10-83 | 530-4 411-4 13-32 | 526-7 465-1 18-10 | 526-3 493-6 | 25 02-93) 527-3 482.7 55 10-50 | 530-5 412-3 12-58 | 527-3 466-8 18-40 | 527-4 494-1 | 24 59-36) 530-4 485-5 | 19. Bens 3B, aes H 0 25 11-71| 526-5 414-3 | 25 12-38! 528-9 466-9 | 25 17-33| 525-9 493-9 | 24 55-33| 544-0 | 482.6 5 11-71 | 527-4 413-2 13-36 | 530-5 467-1 15-74| 525-2 493-9 52-38 | 554-5 488-2 0 12-62) 526-4 414.7 13-83 | 529-5 467-6 15-51 | 526-7 494-3 52-40 | 559-4 487-1 5 13-02} 523-1 415-7 12-53 | 527-5 468-1 15-58 | 526-5 494.8 54-46| 566-9 | 485-0 ( 14-67 | 520-5 415-4 14-33 | 524-0 468-6 15-81 | 527-2 493-6 | 24 57-78) 565-3 487-6 14-87 | 516-2 416-5 13-90) 527-9 466-4 15-44 | 527-0 493.2 | 25 00-22) 558-2 488-1 14-53 | 509-6 417-3 14-30 526-2 466-7 15-58 | 528-1 492-3 02-25) 548-5 487-9 G 14-94| 508-2 419-1 14:94 527-5 465-7 15-01 | 527-7 491-7 00-40 | 549-7 486-0 0 16-62| 505-9 419.3 15-17 524-4 466-0 15-15 | 532-8 490-8 00-50) 552-2 485-8 5 18-03 | 503-0 419-1 15-14 524.0 467-3 14-70} 530-6 491-9 02-19 | 549.4 485-2 i} 18-54 | 498-0 418-9 15-76, 521-6 468-0 12-42 | 535-9 493-2 02-86} 550-1 483-3 5 16-75 | 503-3 417-5 15-91; 524-6 468-4 10-43 | 536-2 496-6 03-77 | 546-0 485-3 | 204, oh. 4h. 8h, 25 15-11| 509-9 417-2 | 25 16-65| 523-4 469-1 | 25 09-89| 539-7 497-7 | 25 04-88] 543-8 485:°8 14-06 | 519-9 417-0 16-68 | 524-7 469-7 09-54| 543-7 498-7 05-38 | 543-0 485-4 15-78 | 526-5 417-6 16-32 | 527-8 469-4 09-15 | 542-0 499-9 04-79| 546-1 485-4 16-89 | 523-1 420-5 16-75 | 526-1 471-5 09-53 | 545-2 499-9 05-13} 549-1 483-7 16-33 | 520-7 421-5 16-59 | 533-7 469-4 10-18 | 542-9 499-1 07-11) 544-5 483-7 14-87| 517-2 | 423-1 16-99 | 528-2 471-2 11-34| 540-7 497-5 06-98 | 538-4 483-7 13-25 | 508-6 427-1 16-62 | 526-4 473-0 11-95 | 537-6 493-6 05-25 | 540-0 481-9 11-03 | 507-4 430-1 16-65 | 524-5 474-4 12-28 | 538-0 488-0 05-11} 543-2 480-2 11-51] 512-7 430-6 16-70 | 522-2 473-6 12-28| 538-7 483-8 05-72| 544-1 477-8 09-15 | 509-7 433-0 17-20| 523-7 474-4 12-29) 535-9 480-4 06-39 | 542-3 477-5 08-88 | 510-6 436-3 17-47 | 522-3 473-8 12-11 | 535-5 476-3 06-50) 541-9 477-1 12-95} 513-6 | 439-9 17-22} 523-1 472-8 11-99 | 533-1 473-9 07-10 | 539-7 477-3 212: ree 5h, gh, 25 15-94| 506-4 443-5 | 25 16-41) 527-1 471-6 } 25 11-84| 540-3 469-5 | 25 07-47 | 534-1 479-2 13-81 | 503-0 444-3 16-15 | 533-2 468-1 11-34] 538-7 468-4 06-26 | 533-9 478-7 15-52 | 503-4 445-7 17-27 | 532-0 469-2 11-28 | 543-3 463-0 04-81 | 536.4 476-7 15-91 | 499-5 447-8 16:99 | 533-6 469-8 11-14 548-0 463-0 03-87 | 538-6 473-0 16-28 | 501-2 447.7 16-65 | 533-2 471-0 10-80 | 545-3 464.3 02-96 541-7 467-8 17:02} 505-5 449-6 15-61} 536-7 471-4 10-25 | 542-9 465-3 03-27 | 545-3 462-4 | 17-36 | 497-3 451-1 15-41 | 534.2 473-9 10-04| 540-4 466-1 05-38 | 540-8 461-0 15-91| 501-7 448-3 15-58 | 535-1 474.4 10-50 | 538-4 465-2 09:79 | 532-0 461-6 15-85 | 503-9 446-4 16-45 | 536-8 475-1 10-04 | 543-0 463-8 09-76 | 529-8 461-3 17-33 | 497-3 451-4 16-86 | 538-2 475-3 10-41} 542-9 460-1 06-90 | 530-8 461-1 15-27| 501-9 452-6 16-84} 539-8 476-0 10-38 | 542-1 459-0 05-72 | 532-3 462-5 13-32 | 512-2 452-5 16-86 | 542-4 476-7 10-43 | 545-0 458-2 04-37 | 535-6 463-5 n. Observed 2™ after the Declination, =0:000140. BALaNcE. Observed 3™ after the Declination, s=0:000010. : 2 1% | | MAG. AND MET. oss. 1845. os Bifilar magnet vibrating 12 sc. div. = “The temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly vations of Magnetometers. 804 gh 32m, TeRM-DAy OBSERVATIONS OF MAGNETOMETERS, 1845. Gottingen | SrpremBer 24, 25. sAbENe Bate | Declination | Decuina- | Breitar | BALANCE] DeEciina- Brriar | BALANCE J DeEcuina- Brrizar | BAtaAnce | DEcLina- Brrinar | Bawa) Observation. TION, Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected, | Corree Min. 2 u | Se. Div. | Mic. Div.J ° 4 Se. Div. | Mic. Div. g' v Se. Div. | Mic. Div. Se. Div. | Mie. Di | 10", 145, 18, 22h, OQ | 25 10-80| 555-2 437-8 | 24 59-09| 541-9 400-4 | 25 11-74] 520-2 256-7 | 25 16-15] 528-7 5 10-58 | 554-1 438-5 58-49 | 539-3 388-8 07-44 | 515-3 264-8 17-27 | 524-1 10 10-47 | 555-0 438-4 57-31) 539-1 384-4 06-56 | 513-2 274-4 16-41 | 523-1 15 10-25 | 557-1 437-6 56-20) 536-7 379-0 10-53 | 528-7 274-5 16-62} 524.9 20 10-50 | 557-3 438-7 53-67 | 533-8 373-7 10-04 | 543-5 273-3 17-26 | 525-1 25 10-34) 554-1 439-6 53:00 528-0 370-5 10-50 | 543-1 272-3 16-21 | 525-7 30 10-36 | 556-3 439-0 51:99! 524-1 365-6 10-33 | 537-3 273-1 16:39 | 523-9 35 10-77| 549-4 | 441-6 52-64) 516-9 363-0 11-00 | 530.3 280-8 16-05 | 523.3 40 08-82) 544-5 444-3 52-70 | 516-6 360-6 11-03 | 521-1 287-6 16-18} 524-4 45 09-35 542.4 446-1 53-52, 520-8 361-8 14-23 | 513-6 294-4 17:49 | 521-6 50 09-35 546-4 445-3 54-92} 525-1 | 361-9 17-07 | 512-5 | 296-5 17-22) 521-6 55 10-07 548.4 444-5 56-58 526-9 | 358-9 18-58 | 514-5 296-8 519-7 | 1h. 152. 19%, BLM 0 25 10-13| 549-4 442-7 | 24 57-51) 528-9 | 351-6 | 25 17-84) 517-8 297-0 | 25 17-42) 521-5 5 10-23 | 549-5 442-8 57-51 | 526-9 346-6 17-70 | 517-6 298-2 17-12} 523-9 10) || 10-50 | 548-5 445-3 | 24 59-04 525-5 338-0 18:47) 515-7 | 302-2 17-60 | 523-7 | 15 10-70 | 546-8 445-0 | 25 00-40) 525-8 327-8 18-79 | 511-6 301-8 17-37 | 521-4 20 10-53 548-7 444-6 | 24 59-21) 530-2 | 322-6 18-27 | 509-0 | 301-6 16-65 520-5 25 10-68 551-5 443-2 59-56 | 529-6 318-6 16-21) 509-7 303-0 15-98 520-2 30 10-74 552-5 442-] 59-77 | 531-3 | 314-0 12:95) 514-1 308-4 15-18 | 525-2 35 10-75) 549-7 | 442-5 58-27) 534-0 | 306-8 13-37) 516-3 | 314-0 15-47 | 521-9 40 10-40 | 548-2 | 443-4 55-84! 533-4 | 301-1 14-10) 512-1 | 320-4 15-47 | 528.0 45 | 10-41 | 547-5 443-4 53-88} 528-7 | 297-5 13-02 | 508-1 331-1 16:16 | 523-4 50 10:09) 544-9 445-1 52-46| 528-0 | 294.8 12:82) 504-1 342-0 15-65 | 526-5 55 10-47! 548-7 444.2 53-27 | 527-4 | 287-6 12:29 506-6 350-0 | 524-9 | 12h, 164, 20%, on 0 || 25 10-77 | 551-8 442-4 | 24 53-38| 530-4 | 278-0 | 25 12-82| 506-6 352-9 | 25 16-08! 525-1 | 5) 10-56) 550-9 441-7 52-80} 533-4 | 274.3 13-86| 505-1 360-4 16-13) 531-6 10 10-13 | 549-3 i) ee 52-50] 535-3 | 271.2 13-52) 510-3 363-8 17-78 | 528-1 15 09-24 | 550-1 440-8 53-31) 538-3 | 269-5 16-68 | 504-3 370-1 16-75 | 528-5 20; | 07-81 | 552-5 | 438-5 54-82| 542-1 | 266.8 11-17| 516-2 369-6 17-39 | 524.4 25 | 06-79 | 556-1 434-3 55-44) 544-7 269-8 19-31) 506-3 370-0 17-80} 531-6 30 | 25 03-23 | 554-3 | 430-9 55-73 | 547-2 | 266-5 18-77 | 510-3 370-6 18-84} 524.8 35 | 24: 59-76 | 552-0 | 430-0 57-49 | 549-5 267-9 19-07} 504-4 | 370-5 19-81} 542.3 40 | 57-31 | 547-5 431-0 | 24 58-80} 551-6 | 267-2 17-76) 509-6 | 370-1 21-57) 538-5 45 | 55-89 | 543-5 433-7 | 25 00-27) 554-3 | 265-7 18-34) 511-7 369-9 21:10| 547-3 50 | 57-44 | 538-2 435-9 01-36] 550-0 | 265-2 20-25| 507-8 373-4 22:58) 546-6 | 55 | 24 58-38) 539-1 136-6 01-79) 548-3 262.7 20-32! 504-0 | 379-0 542-4 | 134, 174, 21h, 1, 0 | 25 01-01 | 539-9 | 435-6 | 25 01:61! 543-7 | 261-1 } 25 19-04] 508-8 382-4 | 25 21-83) 524-9 5 l 01-90 | 542-9 433-4 02-33) 536-8 257-4 19-28} 509-8 | 384-8 21-54! 517-1 10 | 01-73 | 542-4 430-9 03-47| 544.2 | 256-0 19-68} 507-7 | 389-7 23-45) 510-0 15 02-45 | 544-7 428-3 05-99| 545-1 | 254-6 18-67 | 515-3 | 392-6 24:39 506-9 20 03-61 | 544-9 425-7 08-45 | 537-9 251-4 19-93} 517-1 | 392-8 23-90) 505-6 25 | 03-43 | 546-3 421-3 07-62) 535-9 248-5 21-70) 516-7 | 394-1 23-61) 510-7 300 | 01-95 | 547-4 418-1 06:73 | 536-8 248-3 21-39] 513-5 | 392-1 20-72) 505-2 35 I 02-50 | 547-2 414-0 07-27| 535-8 | 247-7 19-53 514-0 390-4 21-71) 514-6 40 || 01-51] 545-3 | 412.6 07-27| 535-5 | 248-5 18-50| 520-2 | 389.3 24.08) 520-6 45 | 00-92 | 546-1 409-0 08-36) 533-4 ) 249-8 17-81 | 525-7 389-3 23-85 | 513-1 50 | 25 00-75 | 544-6 404-7 10-13 | 530-3 | 255-0 18-01 | 527-7 389-4 20-38 | 528-4 55 =|: 24 59-97) 543-5 399-7 12-04] 527-4 | 255-2 17-40) 526-8 390-2 528-8 | | | BiritaR. 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 Hourl} Observations of Magnetometers. TrermM-Day OBSERVATIONS OF MAGNETOMETERS, 1845. SEPTEMBER 24, 25, OcrToser 22, 23. BALANCE DEcLINA- Brrmar | BALANCE ff Dectina- BrriLak | BALANCE DECLINA- Brrizar | BALANCE | DeEcrina- BIFILAR TION. Corrected. | Corrected. TION. Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. 2 “ Se. Diy. | Mic. Div. Sc. Diy. | Mic. Div. Sy Me Se, Div. Mie. Div. td ¢ Se. Div. Mie. Div. pie 6", 10%, 142. 25 23-34] 542-1 551-5 | 25 07-99| 564-0 706-6 | 25 10-40| 542-2 | 440-0 | 25 11:00) 537-9 | 421-0 26-43 | 543-1 574-3 07-57 | 558-4 709-2 10-40} 542-7 436-0 10-95| 538-5 | 424.8 24-05 | 549-9 594.0 01-85 | 541-4 672-4 10-51) 542-2 | 436-0 11-24} 539-0 429-3 27-04 547-0 624-0 05-96 | 537-0 652-7 10-54 | 541-9 436-6 11-37 | 539-9 427-1 U 25-53 | 533-3 638-7 07-04| 536-2 637-9 10-38 | 541-8 434-1 11-08} 539-4 423-3 om 22-24 | 536-4 638-3 05-60 | 535-0 616-2 10-36} 542-2 | 430-2 10-74} 540-2 425-9 a0 22-06 | 536-1 634-1 06-01 | 539-4 607-0 10-18} 542-2 431-8 10-36 | 540-5 429-6 a 21-23) 541-9 625-5 06-93 | 538-6 596-9 09-80 | 542-1 433-7 10-06 | 540-6 | 427-7 ' U 21-44) 546-6 612-3 07-44 | 533-9 589-4 10-03 | 542-2 433-5 09-59 | 540-3 424-6 _ 40 21-26} 550-9 | 603-4 06-93 | 532-8 584-4 09-98| 542-2 | 432-1 09-47 | 539-5 424.2 =)! 21-26] 546-4 | 596-8 05-80 | 532-2 576-3 09-87} 541-6 429-1 09-32) 539-1 422-6 j b 18-94} 540-2 | 587-3 04-14 | 539-9 565-0 09-77 | 540-8 430-3 09-35! 538-6 425-9 Bs (hs 115, fas ! 25 19-24) 528-0 579-2 | 25 07-15| 540-1 | 554-2 | 25 09-59| 541-4 431-8 ] 25 10-00; 538-2 | 430-1 o 18-70, 534.9 566-2 07-99 | 539-6 545-3 09-86 | 542-1 428-3 10-06 | 538-9 | 430-2 10 19-91 | 540-1 555-6 09-22 | 539-0 536-0 10-00} 543.2 426-4 10-01 | 538-5 428-8 a 21-48) 545-5 547-6 10-92| 537-8 528-6 10-47 | 542-3 426-2 09-87 | 537-8 | 426-5 0 21-53 | 538.3 544-2 11-88 | 536-0 521-5 10-30 | 541-5 425-5 10-38 | 537-0 | 427-0 20 21-12} 535-0 539-7 12-56 | 534-0 516-0 09-79 | 541-2 425-2 10-01 | 538-1 422.2 0 22-10) 545-5 535-1 12-72| 532-8 511-1 09-53 | 541-8 425-4 10-36) 537-4 | 423-1 5) 21-57 | 545.9 532-1 12-65 | 534-5 505-8 09-47 | 541-1 426-0 10:40) 537-1 | 429-3 LO 22:03 | 544.4 531-7 12-83 | 533-4 501-4 09-51 | 540-8 426-7 10-50 | 537-5 431-6 45 22-67 | 536.2 530-1 12-60} 532-6 | 498-6 08-99| 540-0 427-2 10-67 | 538-5 430-7 10 22-27) 531-8 527-3 12-45 | 536-6 492-9 08-73 | 539-6 429.4 11-00 538-5 432-8 20 21-68} 525-5 524-8 11-68 | 537-8 487-7 08-97 | 539-0 434-3 10-83 | 539-4 431-8 4h, 8h, 12%: 162, 0 25 21-59] 525-8 519-3 | 25 12-26| 538-7 485-6 }| 25 09-56| 538-9 436-2 | 25 10:94) 539-8 431-0 3 21-37 | 529-4 514-0 11-93 | 537-7 483-9 10-47 | 539-5 436-3 11:14} 539-5 429-9 0 20-18 | 529-3 507-9 11-95 | 535-4 483-8 11-37) 541-9 | 433-5 11-44} 538-8 430-5 16 19-19} 530-6 501-9 11-71} 537-9 481-4 11-42} 543-7 | 431-) 11-08 | 539-7 426-0 20 17:84] 530-8 | 495.7 11-69 | 536-8 480-0 11-57 | 542-3 427-2 10-72) 540-1 424-5 25 17-00 | 534-4 489-5 11-48 | 535-4 480-1 11-21 542-0 423-8 10-83 | 540-6 425-4 30 16-45 | 535-0 487-3 10-87 | 534-3 480-4 10-70 | 541-3 419-1 10-75 | 541.5 425-8 35 16-36) 541-6 483-2 10-77 | 537-6 478-0 10-51 | 540-3 418-4 10-65 | 542-0 419-4 40, 16-97 | 549-6 479-2 11-00, 538-8 476-9 10-53| 539-0 | 421-1 10-53 | 542-7 418-4 40 17-29 | 559-1 475-4 10-70 | 540-8 475-7 09-22) 539-8 | 419-0 10-40 | 542-4 413-7 50 18-38 | 569.4 475-7 10-63 | 538-8 475-0 10-67 | 540-9 | 422-0 10:06 | 542-8 413-0 apy 18-18 | 569-5 480-2 10-00 535-7 | 475-2 11:07 | 541-0 | 418-2 10-33 | 542-3 415-4 a gh, 132, 175. D 25 17-63| 568-9 | 486-4 | 25 09-26| 533-7 476-5 | 25 10-90| 540-9 | 415-5 | 25 10-31) 542-3 418-4 18-70 | 575-6 497-0 08-41} 535-2 476-3 10-74 | 540-4 417-0 10-09) 542-3 | 421-5 20-02) 572-1 511-6 08-08} 538-5 474-0 11-00] 539-7 | 416-8 09-62] 542-6 | 418-7 22-13] 557-0 527-9 07-91 | 538-4 473-8 10-94 | 539-4 416-4 09-53 | 543-2 | 418-0 21-21) 549-5 548-1 09-32| 536-0 473-1 10-98 | 539-4 416-9 09-60 | 542-6 416-9 17-94] 551-0 568-7 09-29| 536-5 472-2 10-98 | 538-9 417-2 09-47 | 542-3 | 418-1 14-13} 546-8 579-8 09-46 | 536-3 470-4 10-54| 539-3 422-0 09-57 | 542-3 | 415-3 10-80} 548-5 581-9 08-72 | 537-6 468-3 10-56 | 539-1 425-3 09-62 | 542-3 4178 09-64) 560-2 581-0 06-56 | 539-0 467-0 11-17 | 538-5 422-0 09-57 | 542-2 417-6 10-03 | 558-8 585-7 05-02} 542-3 462-7 11-03 | 537-2 420-6 09-40 | 542-1 416-1 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 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 | w, 22 | ILAR. Observed 2™ after the Declination, s=0-000140. BaLancre. 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 Maghetometers. Baan Correcte Mic. D i 431-6 4318 433-1 432.5 432.5 432-6 431-6 432. 433-8 432.7 433.2 433- 433-4 432.4 432.4 432-9 432.2 434-4 433.6 434-2 432.2 4132-6 432-1 432-1 431-3 430-3 431-3 431-2) 431-1 | 431-2 431-6 430-9 430-9 430-6 84 TeRM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845. Gottingen | OcropeEr 22, 23. a Any i Declination | Decrina- | Biriar | BaLance | Decrrna- Brrrzarn | BALANcE J Dectina- Birizar | BALANCE J Dectina- BIFILAR a TION. Corrected. | Corrected. TION. Corrected.| Corrected. TION. Corrected. | Corrected. TION. Corrected. Min. |} © f Sc. Div. | Mic. Div. ° f Sc. Div. | Mic. Div. B + Sc. Div. | Mic. Div. Se. Div. | 18h, 22h, Qh, 6h, 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 5 09-89 | 542-2 423-4 09-86 | 529-9 433-1 14-44 | 536-6 434-4 10-80} 542.4 10 09-46 | 542-7 426-3 09-94| 529-6 432-3 14-24 | 537-0 434-1 10-90 | 542-8 15 09-60) 542-5 427-5 10-23, 530-3 431-7 14:40 | 536-8 435-0 10-83 | 542-9 20 09-57 | 541-4 426-6 10-47 | 530-9 430-7 14:03 | 535-9 435-2 10-80 | 542-7 25 | 09-62) 541-5 429-4 11-10} 530-0 431-6 13-91 | 537-9 | eee 10-60) 542-3 30 09-40 | 542-3 432-5 11-12| 529-6 431-0 13-96 | 538.4 435-2 10-67 | 542-5 35 09-62| 542-1 429.8 11-07 | 529-9 430-3 13-96 | 537-0 436-3 10-60 | 542-7 40 09-77 | 541-5 426-7 11-57 | 530-8 430-2 13:59 | 538-1 436-0 10-67 | 543-2 45 09-54} 541-5 428-9 12-15 | 528-3 430-8 13-69 | 539-0 436-4 10-63 | 543-4 50 09-86 | 541-6 432-5 11-41| 526-6 430-7 13:39 | 538-0 436-9 10-63 | 543-4 55 09-80 | 540-7 433-4 11-21 | 528-6 430-3 13-16 | 538-4 436-9 E 543-4 | 198, 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 . 543-2 5 09-79) 540-7 428-2 11-91} 527-1 | 431-6 12-83 | 538-8 437-5 10-56 543.2 10 09-77) 541-2 429-5 11-74} 525-7 431-7 12-75 539-6 447.2 10-56 | 543-5 15 09-76) 541-5 430-8 12-01 | 526-4 431-9 12-69 | 540-0 437-6 10-51 | 543-6 20 09:79) 540-8 427-8 12-18 | 526-5 432-3 12-46 | 539-3 437-6 10-45 | 543-6 25 09-76| 540-3 426-7 12-09 | 527-6 432-1 12-22} 539.3 437-5 10-48 | 543-4 30 09-74) 540-0 428-2 12-36} 528-4 432.2 12-11 | 539-1 437-7 10-38 | 542-7 35 09-74 | 539-4 428-2 13-05 | 528-4 432-0 11-98 | 540-4 438-5 10-36 | 542-8 40 09-82} 539-3 430-8 13-05 | 528-5 432-1 11-77 | 539.2 438-2 10-40 | 543-2 45 09-87 | 539-1 432-9 13-14 | 528-8 431-4 11-66 539-7 438-1 10-33 | 543-1 50 09-79 538-6 435-1 13-16 | 530-0 431-1 11-62| 539-7 438.6 10-41 | 543-1 55 09-60 | 538-0 434.2 13-56 | 529-3 431-8 11-41 | 539-2 438-1 543-0 204, 0h, 4h, 8h, 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 5 09-15 | 537-0 436-9 14-10} 529-8 431-2 11-27} 540-1 438-0 10-40) 542-8 10 09-00 | 538-0 435-6 14-01 | 529-9 430-8 11-22) 539-5 437-4 10-50) 542-7 15 09-08 | 538-3 433-1 14-26 | 530-5 430-8 10-83 | 538-9 438-3 10-43 | 542-6 20 09-45) 536-3 434-4 14-33 | 530.7 430-3 10-90} 538.7 438-1 10-51 | 542-5 25 09-06 | 533-5 436-7 14-23 | 532-0 429.9 10-50 | 538-5 437-8 10-41 | 542-5 30 08-99 | 534-8 438-2 14-68 | 533-6 430-0 10-54 | 539-5 438-0 10-36 | 542-4 35 09-35 | 535-5 437-5 14-67 | 533-1 430-1 10-87 | 539-9 437-3 10-43 | 542-4 40 09-49 | 536-2 435-8 15-20 | 532-6 431-3 10-53 | 540-2 437-4 10-43 | 542-4 45 09-60 | 535-4 433-7 15-05 | 529-0 432.3 10-48 | 541-0 437-6 10-47 | 542-4 50 09-30, 534-4 430-6 14-91 | 530-0 432-6 10-41 | 540-7 437-2 10-50 | 542-5 55 09-08) 534.2 430-1 14-84] 531-4 432-2 10-47 | 540-2 437-2 542-5 214, Te, Bay gh, 0 25 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 5 09-29) 532-4 432-0 14-85 | 533-7 433-2 10-41 | 541-6 436-4 10:50| 542-4 10 08-72 | 532-2 433-1 15-17 | 533-7 433-4 10-43 | 539-2 436-2 10-50} 542-2 15 08-68 | 532-2 435-0 15-22 | 532-2 433-7 10-43) 542-1 436-0 10-50 | 542-1 20 08-25 | 533-2 435-4 15-05 | 533-1 433-7 10-43 | 542-7 436-0 10-50} 542-2 25 08-66 | 532-9 435-1 14-99 | 535-1 433-1 10-43 | 541-9 436-0 10:50} 542.2 30 08-38 | 532-1 434-9 15-27 | 533-9 433-0 10-43 | 540-9 436-0 10-50} 542-3 35 08-88 | 532-1 435-1 14-75 | 534-0 433-5 10-36 | 542-9 435-8 10-50| 542-4 40 09-05 | 532-2 435-7 14-94 | 552-7 433-7 10-43 | 540-8 435-5 10-51 | 542-6 45 09-35 | 531-8 434-6 14:57) 534-1 433-9 10-56 | 541-5 435-6 10-50| 542-5 50 09-53 | 531-3 434-3 14-40} 534-8 433-9 10-60 | 542-1 434-4 10-50} 542-4 55 09-60) 531-4 434-2 14-35 | 535-5 433.4 10-67 | 542-3 433-4 542-5 | | Birizar. 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. Or TERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845. cS) Novemser 28, 29. DECLINA- BirizaR | BALANCE DeEcuinA- BIrFiLak | BALANCE DECLINA- Birinar | BALANCE DECLINA- Brrmar | BALANce TION, Corrected. | Corrected. TION. Corrected. | Corrected. TION, Corrected. | Corrected. TION. Corrected. | Corrected. 9 ‘4 Sc. Div. | Mie. Div. 9 4 Sc. Div. | Mic. Div. 9 et Se. Div. | Mic. Div. 2 Ls Sc. Div. | Mie. Diy. . 105. 14%, 18, 228, 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 06-43 | 541-7 405-6 08-61 | 537-7 400-9 07-29 | 540-8 381-3 05-11} 536-8 392-0 06-61} 542-1 405-0 08-36) 539-2 400-2 07-15} 543-1 382-0 05:29 | 537-0 390-8 | 06-59| 542-0 405-3 08-43) 541-5 398-2 07-87 | 540-6 381-8 05-77 | 537-5 390-8 | 06-73 | 542.7 407-0 07-45 | 541-7 396-8 07-74 | 540-9 382-4 05:05 | 535-2 389-2 06-70} 542-0 406-2 07-13 | 540-8 393-3 07:99 | 543-4 382-0 05-05 | 540-5 387-9 06-37 | 541-9 406-2 06-:71| 540-0 | 392-2 07-87 | 545-4 381-3 06-90 | 537-5 389-1 06-39 | 541-9 406-5 08-70 | 538-3 391-7 08-38 | 542.8 381-5 05-79 | 538-4 387-7 06-43 | 542-1 407-2 09-82 | 537-5 390-6 07:94 | 541-2 380-8 06-26 | 537-0 387-5 06-43 | 542-3 407-2 10-77 | 540-5 386-6 07-82 | 542-1 382-6 05-82! 537-0 387-1 06-48 | 542-7 406-9 11-77 | 540-4 384-9 07:81) 542-4 381-6 07-32) 539-2 388-1 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, - 15", 19}, PU 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 07-10} 541-1 407-2 11-37 | 541-5 370-5 07-85 | 545-6 381-1 07-94 | 534-1 389-4 07-00 | 541-5 407-3 08-66 | 540-9 368-6 07-74 | 542-7 381-9 07-05 | 538-8 389-4 06-90 | 542-1 406-5 07-13 | 540-4 367-2 07-24) 544-7 381-7 09-15 | 537-6 389-5 07-08 | 542-4 406-0 06-36| 541-0 369-2 07-84| 543-9 382-0 08-48 | 536-8 389-9 06-86 | 543.2 405-7 06-64 | 539-4 370-2 08-11) 545-7 381-6 08-52 | 538-1 390-7 07-13 | 543-3 405-5 06-66 | 538-7 372-4 08-19 | 542.9 381-9 07:94 | 537-1 390-9 06-79 | 542-4 406-4 06-88 | 539-1 373-2 07-35 | 545-5 382-4 07-98 | 538-0 392-2 06-73 | 542-4 | 406-0 07-18) 540-3 375-3 07-76 | 542-2 382-8 08-72 | 536-9 |° 392-8 , 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 ¢ 124, 164, 204, 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 > 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 5 07-07 | 540-6 406-2 06-90 | 543-4 378-3 06:98 | 543-0 384-0 09:57 | 537-7 394-5 ) 06-93 | 540-3 406-6 07-31) 545-5 378-8 07:18 | 544-0 384-0 09-42 | 538-4 395-2 07-37 | 540-9 406-4 07-34 | 544.2 378-8 06:50} 543-1 384-7 09-54 | 536-7 395-9 07-47 | 541-7 | 406-8 06-95 | 544-1 378-2 07:57} 541-9 | 386-7 09-32) 535-9 | 396-2 07-15 | 541-3 405-6 06-26) 543-9 378-1 07:89 | 542-7 386-5 09-57 | 534-0 396-3 06-90 | 541-6 405-3 05-58 | 542-6 378-1 07:35 | 544-6 385-4 09-66 | 536-2 396-7 07-07 | 541-8 405-3 04-84) 543-0 378.4 07-45 | 543-8 385-4 09-56 | 535-4 396-9 07-08 | 543-1 405-5 04:81 | 543-3 378-9 07-38 | 544-9 385-9 09-19} 534.8 398-0 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%, 174, 21h, 14, 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 07:37 | 541-3 404-0 05-94] 542-0 382-5 07-85 | 539-3 388-8 10-33 | 534-2 401-9 07-58 | 540-7 404-0 05-69 | 543-3 381-7 06-63 | 539-9 389-3 10-47 | 535-7 402-6 07-04) 540-1 404-8 05-63 | 542-3 382-3 07-31} 541-0 389-8 11-41} 534-2 402-9 07-07 | 540-9 404-3 06-53 | 542-9 382-5 07-07 | 538-2 390-2 11:39 | 538-1 404-0 07-07 | 540-3 402-1 06-17| 542.4 381-7 06-12] 539-1 391-9 11-61 | 538-9 403 4 07:07) 539-6 403-4 05-82| 544-0 381-1 06-93 | 535-4 393-1 12:45 | 538-5 403-6 07-32 | 538-9 403-0 06-06 | 541-5 381-5 06-12} 536-5 393-7 12-22} 535-7 404-7 | 07-54} 539-8 401-0 06-12) 542-8 381-6 06-16 | 534-1 394-2 11-91 | 534-1 405-7 07-71! 540-0 402-3 06-16} 544-8 380-3 05-63 | 533-5 394.4 11-98 | 533-9 405-4 07-89 | 540-3 401-9 06-26} 544-1 380-0 05:05 | 532-4 394-2 12-45 | 534.2 406-0 08-08 | 539-8 401-2 06-23 | 544.9 380-7 04-98 | 535-1 393-5 11-77| 532-3 406-2 AR. Observed 2™ after the Declination, s—=0:000140. BawLancre. Observed 3™ after the Declination, k=9-000010. ie temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly rvations of Magnetometers. ¥ MAG. AND MET. ozs. 1845. : x ie, , ‘TprM-DAY OBSERVATIONS OF MAGNETOMETERS, 1845. Gottingen Novemser 28, 29. DecemBer 24, 25, pigan Tune | J Paminaton)| Decuuea | Borman, | Baranos | Dacues | Borman |duncctst| Dasow:” |correcten|correstes.| "'son-” | corsestet,| Gor Min. |» os Se. Diy. | Mie. Div. = t Se. Diy. | Mie. Div. a e Se. Div. | Mie. Div. Se. Diy. Mie. D Qh. 6". 104, 144, Q | 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 5 11-32) 528-7 | 408-7 04-55 | 537-8 | 421-9 05-92| 545-0 | 428-3 07-07 | 547-1 10 ‘| 11-01, 527-0 | 410-1 05-18 | 536-3 | 421-3 05-47 | 544-5 | 428-5 07-04 | 546-8 a 10-77, 527-7 | 411-1 06-34] 536-8 | 421-0 05-49 | 544-9 | 427-5 07-10 | 546-5 20 | 10-21, 528-1 | 412-4 07-82 | 532-9 | 420-9 05-42} 543-2 | 428-4 07-00 | 546-4 25 sO 09-56| 528-5 | 413-7 06-39 | 538-2 | 417-8 05-29 | 543-7 | 428-1 06-93 | 546-6 30—s|| 09:05) 529-7 | 415-4 07-13 | 540-2 | 416-6 05-43 | 545-1 | 428-2 07-08 | 546-5 35} 10-00 | 533-1 | 416.4 07-15 | 542-9 | 414-3 05-76 | 546-0 | 425-6 07-10 | 546-2 40 09:79) 535-8 | 415-2 07-31 | 544-5 | 412-6 06-06 | 545-4 | 426-8 07-17} 545-7 | 411s 45 11-34 | 537-1 | 414-9 08-21) 545-5 9 411-7 06-07 | 544-2 | 426-9 07-17} 545-5 | 411 50 | 11-81} 537-0 | 413-8 09-02} 544-3 | 410-4 06-46 | 545-3 | 426-7 07-35 | 545-5 a 55 536-0 | 412-6 09-05} 543-1 | 408-9 06-59) 546-3 | 425-6 07-40 | 545-7 | 41 ao a Wine 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: 5 | 09-73 | 537-2 410-2 08-38! 542-5 | 409-8 06-71 | 547-2 | 423-4 07-44 | 545-0 | 409 10 10-16) 539-4 | 409-5 08-95, 541-5 | 408-8 06-53| 547-1 | 422-7 07-57 | 544-9 a is | 10-33 540-1 408-8 08-82| 542-6 | 409-1 06-86 | 546-1 | 422-4 07-31) 545-4 | 409: 20 10-06} 540-3 | 408-6 08-95, 541-5 | 409-3 06-79 | 545-8 | 422-7 08-01 | 545-4 | 407 25) | 09-89} 540-0 408-0 08-58 542-5 | 408-3 06:84 | 546-8 | 422-0 08-25| 545-3 | 408: 30 | 09-89 | 541-1 | 408-0 08-43) 543-0 | 408.8 07-24) 547-6 | 421-8 07-78 | 545-8 | 408. 35 | 10-09 | 542-3. 407-8 08-50) 543-4 | 407-4 07-27 | 547-3 | 420-3 07-71 | 545-9 a 40 | 10-13| 542-2 | 408-1 09-19) 544.4 | 407-4 07-54 | 546-4 | 420-7 07-74 | 545-8 | 408: 45 10-11 | 542-0 | 408-1 08-41 544-9 | 405-7 07-54) 547-8 | 420-2 07-91 | 545-9 | 407. 50 10-06 | 545-0 | 408-6 08:08 544-7 | 405-0 07-72| 547-7 | 419-4 07-98 | 546-2 | 406: 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 125: 16, 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 | 10-16 | 542-7 | 409-7 07-92| 544-5 | 405-4 07-:82| 548-1 | 418-1 08-03 | 546-5 | 406: 10 | 10-06 | 544-8 | 408-8 07-74| 544-1 | 405-3 07-82 | 547-5 | 418-2 08-08 | 546-6 | 407 foe 09-62| 545-4 | 409-4 07-60) 543-9 | 405-4 07-78} 546-9 | 418-0 08-09 | 546-4 on 20 =| 09-96 | 544-9 | 409-4 07:55 | 543-4 | 404-6 07-84| 546-6 | 418-7 07-89 | 546-5 | 406 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 Bor i 10-51| 541-2 | 411-8 07-60, 543-1 | 403-9 07-79 | 547-4 | 417-7 07-74 547-0 | 405 40 | 11-24] 537-2 | 413-9 07:47) 543-3 | 403-1 07-82) 547-2 | 417-9 07-76 | 546-8 | 406: 45 | 11-68 | 528-6 | 416-9 07:25 | 543-9 | 403-1 07-74} 546-7 | 418-2 07:78 | 546-9 | 405: 50 | 09-44) 517-7 | 421-4 07-13 | 543-3 | 402-9 07-78 | 546-8 | 417-3 07-78 | 546-8 | 408 5 518-0 | 423-7 07-13 543.9 | 402-7 07-72 | 547-0 | 418-2 07-72 | 547-0 | 405: | Bit gh, 13). 174, 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 5 | 25 01-54] 523-1 427-0 06-98 | 544:0 | 400-9 07-69 547-5 416-1 07-81) 547-1 405 10 || 24 57-28) 524-5 430-1 06.93 | 544-0 398-5 07-81 | 547-3 415-9 7-79 | 547-0 4 15 || 56-63 | 525-7 | 431-2 06-74 | 544-5 | 400-1 07-69} 546-8 | 415-8 07:74 | 547-1 20 =| 56-34 | 529.7 430-2 06-74 | 545-0 397-4 07-57 | 546-7 415-3 07-67 | 547-1 25 | 56-94| 532-4 | 428-6 06-76 | 543-4 397-2 07-62 | 547-2 =F 07-67 | 546-9 30 | 58-22| 534-1 | 427-9 06-39 | 543-9 396-6 07-57 | 547-2 | 415-8 07-65 | 546-7 35 i 57-07 | 538-7 | 425-7 06-27 | 543-6 396-6 07-67 | 547-4 | 415.0 07-58 | 546-3 40 | 58-09 | 540-3 | 425-7 06-56 | 542-9 396-6 07-51 | 547-2 | 414-9 07-54) 546-9 45 | 24 59-09 | 539-6 | 424-6 06-51 | 541-7 396-9 07-51 | 547-3 414-6 07-51 | 547-7 50 | 25 00-11) 539-7 | 423-8 05-12) 541-3 396-5 07-60 | 547-4 | 414-3 07-51 | 548-0 55 25 01-51, 539-8 423-6 05-65 | 542-0 396-2 07-60) 547-0 oy 07-78 | 547-7 Biritak. 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 Hourl Observations of Magnetometers, When double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the previo position being appreciable, the micrometers were not altered. = TerM-DAy OBSERVATIONS OF MAGNETOMETERS, 1845. 8 DecemeBer 24, 25. " DECLINA- Biritar | BALANCE DEcLINA- BiFritar | BALANCE DECLINA- Birizar | BALANCE DECLINA- BirivaR | BALANCE TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. o 4 Se. Div. Se. Div. | Mic. Div. 2) f Se. Div. Mie. Div. Si u Se. Diy. Mic. Diy. : 184, 22%, Be 62, 0 25 07-40 | 548-8 25 07-38| 545-0 396-6 | 25 10-45) 546-1 399-5 | 25 08-11| 548-4 389-4 D 07-25 | 548-6 07-46 | 545-1 397-0 10-38 | 545-8 399-6 08-29} 547-9 388-6 ) 07-20 | 548-4 07-81 | 545-4 397-3 10-51 | 546-4 399-4 08-38} 547-5 388-6 3) 07-05 | 548-5 07-87 | 545-1 397-0 10-75 | 546-6 399-5 08-38 | 547-0 of ) 07-05 | 548-7 07-47 | 544-9 396-9 10-81 | 546-3 399-3 08-56 | 547-4 388-3 iq 07-10} 548-6 07-81} 544-5 396-8 10-78 | 547-8 399-4 08-21} 548-0 387-8 0 07-10 | 548-6 08-08} 545-2 396-9 11-14| 547-6 399-7 08-29 | 547-9 385-4 5 07-18 | 549-0 07-87 | 544-9 396-9 10-80 | 546-6 399-8 08-38 | 547-7 386-0 0 07-34 | 549-0 08-08} 545-3 396-8 10-63 | 546-9 399-5 08-28 | 547-6 386-2 5 07-44 | 548-5 08-31 | 544-6 397-2 10-70 | 547-1 399.2 08-08 | 547-7 387-1 50 07-47 | 548-1 08-11) 544-6 397-5 10-54 | 547-4 399-1 08-14} 547-9 386-5 153 07-34'| 548-3 08-52) 544-1 397-8 10-43 | 547-4 399-4 07-94| 548-0 385-9 j 19}, 23h, 3h Tee 0 25 07-34| 548-0 25 08-63 | 544-2 398-2 | 25 10-47| 547-5 | 399-7 }] 25 07-87| 548-3 385-4 5 07-20} 548-0 08-65 | 543-7 398-5 10-23 | 547-7 399-1 07-84| 548-2 385-5 0 07-17 | 548-5 08-70 | 543-3 399-0 10-14] 547-7 399-1 07-85 | 548-2 384-2 oF 07-20! 548-0 08-52) 543-2 399-2 10-06 | 548-3 398-9 07-85 | 548-2 384-9 20 07-07 | 548-0 08-41 | 543-2 399-5 10-07 | 548-5 398-7 07-87 | 548-5 | 385-9 25 07-07 | 547-9 08-80 | 543-1 400-2 09-89 | 548-2 398-0 07-84 | 548-5 385-7 i} 07-01 | 548-6 08-82| 542-4 400-7 09-86 | 548-6 397-9 08-03} 548-6 | 383-7 5 07-13} 548-6 09-05 | 542-6 400-6 09-77 | 548-0 397-3 07-92 | 548-1 384-4 0 07-07 | 547-7 09-19| 543-0 400-0 09-56 | 547-7 396-9 07-87 | 548-1 384-4 5 07-08 | 548-0 09-19} 543-2 | 400-4 09-42 | 548-1 395-9 08-01 | 548-2 384-2 50 07-15 | 547-6 08-72} 543.3 400-0 09-35 | 547-7 395-9 07-51| 548-2 | 384-4 5 07-17 | 547-6 09-35 | 543-3 399-9 09:19} 547-8 395-6 07-74 | 548-2 | 384-6 { 20%. on. 4h, 8, )), 25 07-13 | 547-7 25 09-26| 543-5 400-1 }] 25 09-00) 548-0 395-6 | 25 07-84| 547-8 384-8 a 07-27 | 547-7 09-62| 543-7 | 399-4 08-99 | 548-0 | 395-2 07-78 | 547-8 384-8 0 07-18} 547-1 09-79! 543-8 399-6 08-85 | 547-4 394-9 07-71| 547-8 385-8 15 07-20| 546-8 09-59 | 543-1 399-8 08-79 | 547-4 395-0 07-60} 548-1 385-8 0 07-29 | 546-5 10-27 | 543-3 399-9 08-72) 547-4 394-5 07-60 | 548-1 387-1 a 07-07 | 546-5 10-16} 543-0 399.9 08-65 | 547-4 594-7 07-67 | 547-7 387-2 0 07-05 | 546-8 10-33 | 542-6 400-1 08-55 | 547-5 394-2 07:78 | 547-8 386-6 5 07-05 | 546-6 10-30} 544-5 400-4 08-53} 548-1 392-9 07-76 | 548-2 386-7 0) 07-13 | 546-3 10-30} 543-3 400-3 08-34 | 548-4 392-3 07-71 | 547-8 386-5 5 07-31 | 546-5 10-30} 543-8 400-2 08-21} 548-4 392-3 07-91 | 547-1 386-5 07-17 | 546-7 10-54| 544-3 400-1 08-21) 548-4 392-7 07-81} 547-4 386-6 07-10 | 546-1 10-83 | 544-2 399-8 08-34 | 548-1 392-8 07-81] 547-5 386-6 ; 21h. 1h ue 9h, 0 || 25 07-04) 546-4 25 10-75 | 544.3 400-2 | 25 08-18} 547-8 392-2 | 25 07-78| 547-3 386-4 5 07-10 | 546-9 10-65 | 544-6 399-9 08-18} 547-6 392-0 07-78 | 546-8 386-2 ) 07-20 | 546-2 10-70 | 544.7 400-2 08-21 | 547-7 392-4 07-76 | 546.2 387-0 > 07-10 | 546-6 10-70) 544-9 400-6 08-31 | 548-3 391-7 07-74 | 546-6 386-9 ) 07-40 | 546-5 10-34 | 545-0 400-1 08-28 | 548-5 391-3 07-67 | 546-0 387-4 07-10 | 546-7 10-53 | 544-8 399-6 08-23 | 548.5 391-3 07-67 | 545-9 387-3 07-07 | 546-0 10-30 | 544.4 399-7 08-31 | 549-3 389:8 07-54 | 546.4 387-8 07-24 | 545-9 10-20 | 545-4 399-4 08-34 | 548-9 390-3 07-57 | 545-8 387-7 07-24 | 545-9 10:30 | 545-4 399-3 08-34 | 548.3 390-2 07-84 | 545-1 386-5 07-32 | 545-7 10-18 | 545-6 399-8 08-41 | 548-2 390-5 07-60 | 545-2 385-2 07-27 | 545-5 10-47 | 546-0 399-8 08-31 | 548-6 390-1 07-47 | 544-8 385-6 06-83 | 545-2 10-51 | 546-3 399.3 08-28 | 548-5 389-7 07-52} 544-1 384.9 IFILAR. Observed 2™ after the Declination, <—0-000140. BaLancr. Observed 3™ after the Declination, s—9-000010. e temperature of the bifilar and balance magnets, and the observers’ initials, will be found at the corresponding hours in the Hourly tions of Magnetometers. nm double commas (,,) occur in the column for the balance magnetometer, the needle was examined, and no change from the previous jion being appreciable, the micrometers were not altered. EXTRA OBSERVATIONS OF MAGNETOMETERS. MAKERSTOUN OBSERVATORY. ~ 1845. MAG. AND MET. ops. 1845. aus . EXTRA OBSERVATIONS OF MAGNETOMETERS, JANUARY 0—9, 1845. TROT BUFILAR BALANCE A DEORE ANON BIFILAR BALANCE 4 Corrected. . || Corrected. Time. : Corrected. Corrected. Min. = nS Min. | Se. Div. || Min. | Mic. Div. cL Paid. Min. ¢ “s Min. | Se. Div. || Min. | Mic. Div. O | 25 11-17 2 | 532-8 3 | 615-3] 9 7 || 15 | 25 11-01] 17 | 534-1]) 18 | 665-1 10 12-92 |} 12 | 540-9] 13 | 611-9 25 09-96 || 27 | 537-3] 28 | 663-5 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] 45 11-08 || 47 | 532-1]| 48 | 599-6] 9 8%] O 06-59 2 | 525-0 3 | 688-4 55 08-68 || 57 927-9 | 58 | 601-6 5 06-43 7 | 524-1 8 | 695-0 0 08-05 2 | 526-3 3 | 603-4 20 07-78 || 22 | 530-5 || 23 | 726-3 5 08-14 7 | 526-8 8 | 606-0 25 07-51 || 27 | 536-5 || 28 | 731-1 15 09-96 || 17 | 528-9 || 18 | 609-1 32 | 534-0] 33 | 730-5 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 0 11-91 2 | 533-1 3 | 610-4 55 05-45 || 57 | 528-2]! 58 | 733-6 — —_—||— — 9 9%) 0 | 25 00-27]) 2 | 558-8] 3 | 766-6 0 | 25 12-08 2 | 528-7 3 | 643-2 5 | 24 59.12 7 | 580-0 8 | 832-4 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 0 12-20 2 | 537-1 3 | 640-3 20 57-34 || 22 | 528-7 || 23 | 820-1 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 25 03-43)]) 27 | 549.2|| 28 ri 45 | 24 58-36] 47 | 515-4|| 48 | 733-0 30 06-63 || 32 | 544-7) 33 | 628-4 50 | 24 59-06]| 52 | 511-1]| 53 | 729.9 40 11-44 |} 42 | 538-4 | 55 | 25 00-18] 57 | 504-3] 58 | 704-9 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 5 04-31 7 | 543-8 8 | 694-5 0 12-96 2 | 536-2 3 | 621-2 10 07-13 || 12 | 503-6|| 13 | 640-9 0 08-19 2 | 537-4 3 | 620-7 15 | 25 04-66 || 17 | 511-5]! 18 | 605-4 10 08-82 || 12 | 537-4] 13 | 620-6 20 | 24 51-86 || 22 | 599-2|| 23 | 633-4 0 11-61 2 | 532-9 3 | 619-1 24 26-43 || 24 | 587-7 — —— — 25 19-63 || 26 | 561-2 0 | 25 06-68 529-6 3 | 632-5 26 18-89 || 27 | 543-7 || 27 | 580-0 10 07-34 || 12 | 530-3) 13 | 632-6 28 | 534-4 0 13-05 2 | 536-0 3 | 621-5 29 22-32) 29 | 529.0 — — — 30 31-07 || 30 | 517-0]! 31 | 517-6 0 | 25 11-37 2 | 539-9 3) 593-5 31 | 515-7 10 10-56 || 12 | 538-3 | 13 | 595-2 32 32-89 || 32 | 515-2 0 12-02 2 | 535-6 3 | 598-8 33 | 515-4)] 34 | 557-9 ——— ——| 35 31-74 || 35 | 514-7 0 | 25 14-44]. 2 | 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 0 13-19 2 | 532-0 3 | 608-8 39 | 501-2|| 39 | 499.8 0 | 25 17-60 2 | 540-0 3 | 597-2 42 41-70 || 42 | 493.9 15 18-07 || 17 | 542-0 43 | 490-1) 43 | 487-0 0 17-54 2 | 541-8) 3 | 593-1 44 | 485-2 es Sas —| 45 40-63 || 45 | 481-3 | 0 | 25 22.37 2 | 533-0 3 | 607-0 46 | 479.4 10 24.22 || 12 | 531-0}} 13 | 611-3 47 | 475-9 20 24-59 || 22 | 528-7] 23 | 614-2 48 | 473-6|| 48 | 471-4 30 23-11] 32 | 530-2] 33 | 614-2 49 | 474.6 40 22-87 || 42 | 534-1] 43 612-0 || 50 37-29 || 50 477-0 | 0 21-90 2 | 532-7 3 614-6 | 51 | 483-2 0 15-47 2 | 536-9} 3 | 647-9 52 40-15 || 52 | 481.2 | 15 19-73 || 17 | 533-1] 18 | 658-2 | 53 | 480-1] 53 | 410-9 20 20-29 || 22 | 532-0] 23 | 658-5 54 | 479-7 | 30 20-65 || 32 | 532-7 || 33 | 658-2 55 48-27 55 478-9 0 16-43 2 | 537-6|| 3 653-4 | | 56 | 473-5 0) 12-93] 2 | 535-4) 3 | 663-0 | 57 | 471-0] 10 12-22!| 12 | 532-5! 13 | 665-3 58 | 466-5 || 58 | 368-1 BIrivar. k=0-000140. BALANCE, k=0-000010. 9 12%| * See notes on the Aurora Borealis, after the Hxtra Observations of Magnetometers. Jan. 94 10% 23m, Jan. 94 11 22m, Bifilar reading probably highest (615) at this time. Bifilar vibrating 20 sc. div. DECLINATIO Min.| ° 0 | 24 56: 1 55 5 46: 45 47 46-70 18-87 24 54: 39: Extra OBSERVATIONS OF MAGNETOMETERS, J ANUARY 9—10, 1845. BALANCE Gott. Corrected. aoe ime. Min. |Mic.Div.} 4d. bh. 9 12 DECLINATION. 9 | 24 48-67 10 47-96 12 47-35 06-70 08-68 07-05 55-47 54-92 59-43 54-10 47-76 47-84 48-33 52-70 51-49 46-70 45-27 44-32 44-76 49-98 53-07 51-19 51-43 52-15 53-20 BIFILAR Corrected. Min. | Se. Div. 477-3 470-8 461-2 464-5 470-5 469-9 BALANCE Corrected. Min. Gott. Mean Time. DECLINATION. BIFILAR Corrected. 381-9 385-2 388-0 386-2 408-8 Mic. Div. d. h. 9 14 Min. 45 50 55 in. | Se. Diy. 445.4 423-7 429-3 431-3 | 429.8 426:8 | 451-1} 445-4 | 430-7 426.9 436-5 422.6 | 424.6 | 413-1 407-7 408-7 409-8 427-5 461-6 486.2 494-9 495-6 497-2 499-8 507°3 503-3 499-8 500-3 506-7 526-0 502-6 512-3 524-1 510-8 510-3 521-7 522-9 525-5 531-5 529-8 530-9 529-7 91 BALANCE Corrected. Mic. Div. 650-2 | 633-9 618-2 | 611-3 603-5 572-7 598-8 10 10 10 13 10 14 13-81 | 13-61 15-71 14-85 | 12-69 518-7 519-4 525-9 552-3 554-2 537-3 534-0 543-2 543-5 540-9 537-1 527-8 526-9 527-6 537-9 537-5 527-6 Birivar, k=0:000140. BaLancE. k=—0:000010. * See notes on the Aurora Borealis, after the Lxtra Observations of Magnetometers. Jan. 94 155 4m, Jan. 94 15 5m, Bifilar vibrating 20 div. Bifilar vibrating 12} div. 92 EXTRA OBSERVATIONS OF MAGNETOMETERS, JANUARY 10—21, 1845. Gott. - Gott. Gott. Mean DECLINATION, fee a heat Mean DECLINATION. aan Free Mean Time. : Time. Time. Ch bs Min. LY 5 | Min. | Sc. Div. | Min. Mic. Div. aii: Min. fi Min. | Se. Div. || Min. | Mic. Diy. (ie 10 14 | 15 | 25 11-91]| i7 | 527-9]| 18 | 590-1} 16 19 || 40 | 25 18-23] 42 | 549.2) 43 | 581-4] 20 3 10 15 || O 12-:01|| 2 | 528:3]] 3 | 597-5 55 15-67 || 57 | 547-4|| 58 | 581-9 | i E 16 20 | 0 15-31|} 2 | 544-2|| 3 | 583-1 11 7] O| 25 07-24]) 2] 538.4] 3 | 619.3 16 14-40 | 17 | 541-9|} 18 | 587-2 | 10 08-25 |} 12 | 535-9] 13 | 619-2] 16 21 || O 14-71) 2 | 541-2] 3 | 592-5 20 08-38 || 22 | 541-4 |) 23 | 616.4 ~|—— : | 30 10-36 || 32 | 540-5 19 13*] 0 | 24 44.83] 2 | 493-5|) 3 | 399-8 11 8] 0 14:53 || 2 | 531-7]| 3 | 613-2 5 43-63 || 7 | 492-8]| 8 | 396-7 _| aaa — 10 44-30 || 12 | 493-3 || 13 | 395-0 12 13 || 0 | 25 17-20] 2 | 535.4]| 3 | 577-5 15 44.88 || 17 | 501-7)) 18 | 399-3 30 14-91 || 32 | 541-3] 33 | 583-6 20 47-37 || 22 | 509-5|| 23 | 395-6 12 14]) 0 14-80|| 2} 531-3]] 3 | 591-5 25 48-36 || 27 | 516-3]| 28 | 390-4 1216 || 0 15-61|| 2] 528-8]) 3 | 600.2 30 48-77 || 32 | 520-0|| 33 | 384-1 30 15-34 || 32 | 532.5] 33 | 593.2 35 48-80 || 37 | 540-7|| 38 | 379-2 1217 | 0 21-91|| 2] 529.3]) 3 | 595.8 40 47-64 || 42 | 516-5 || 43 | 372-2 Yor 22-74 || 12 | 520-2|| 13 | 592.8 45 46-41 || 47 | 511-4|| 48 | 364-9 15 21-93 | 16 | 520.4 |) 17 | 590.2 50 47-46 || 52 | 512-6|| 53 | 364-5 27 19-04 || 28 | 529.3 || 29 | 582.6 55 51-05 | 57 | 513-0|| 58 | 364-9 || 40 18-82] 41 | 531-8] 42 | 579-8] 19 14 | 0 | 24 54.79]) 92 | 512.4]| 3 | 363-2 55 17-65 || 57 | 532.4|| 58 | 580-8 10 | 25 02.23}] 12 | 513-0] 13 | 361-0 12 18 0 17-26] 2 | 533.9]| 3 | 580-4 20 03-63 | 22 | 515-0] 23 | 361-4 30 15-61 || 32 | 535-6]| 33 | 588-2 30 04-81 || 32 | 498-6|} 33 | 349-6 12 19 0 14-71]| 2] 536-3]} 3 | 595-1 35 04-89 || 37 | 496-0|| 38 | 340-3 — — | 40 05-38 || 42 | 488-4 || 43 | 329-4 1411 | O| 25 11-17] 2} 544.9] 3 | 576.4 45 03-70 || 47 | 468-2|| 48 | 308-8 | 10 09-93 || 12 | 545-9|| 13 | 573-7) + 50 02-96 |) 52 | 449-6 || 53 | 275-5 15 09-33 | 17 | 545-5]| 18 | 572-4 54 | 437.7 35 09-17 || 37 | 538-0]| 38 | 570-7 55 01-95) 56 | 434-3 | 40 09-02} 42 | 536-3] 43 | 570-1 57 | 432-4|| 58 | 236-3 1412] 0 09-76 || 2] 534-5|| 3 | 572-1119 15 | O 03-50] 2 | 423-4]) 3 | 198-8 10 11-71|| 12 | 529.2]) 13 | 574-5 5 05-29|| 7 | 440.4|| 8 | 199-7 15 11-81 || 17 | 529.5|| 18 | 575-4 10 08-52|| 12 | 465-5 || 13 | 216-8 35 13-90 || 37 | 533-3 || 38 | 574-7 15 10-70 || 17 | 478-6|| 18 | 230-1 1413] 0 16-48 || 2 | 537-2] 3 | 570-3 20 12-18 || 22 | 496-9|| 23 | 239.6 10 16-65 || 12 | 537-7|| 13 | 569-2 25 13-14 || 27 | 509-8 || 28 | 247.4 38 13-22 | 39 | 537-9 |) 40 | 569.2 30 13-44|| 32 | 516-7|| 33 | 259-0 14 14} 0 12-98|| 2 | 533.5|| 3 | 577-7 35 15-11]] 37 | 522-5]| 38 | 271-1 — | 40 15-31 || 42 | 528.2|| 43 | 2752 15 11 | O | 25 02.77)) 21] 546.4|| 3 | 582.8 50 07-78 || 52 | 533-0|| 53 | 287-1 10 03-47 || 12 | 552-4]! 13 | 580-6] 19 16 | 0 04:31 || 2 | 537-8] 3 | 305-3 | 15 01-14} 17 | 557-4]] 18 | 576.4 10 06-97 || 12 | 538-5|| 13 | 309-7 20 05-02 || 22 | 559-7|| 23 | 573-5 30 03-94 | 32 | 542-4|| 33 | 298-5 25 05-87 | 27 | 560-0|| 28 | 570-8 45 05-02 || 47 | 543-6|| 48 | 308-1 30 07-10|| 32 | 555-2|) 33 | 570-4] 19 17 || O 06-88 |} 2 | 539-8| 3 | 330-0 40 08-29 || 42 | 542.1 || 43 | 571-5 30 10-20 || 32 | 534-5 || 33 | 357-4 50 08-66 || 52 | 534-8 || 53 | 574.61 19 18 | O 13-72|| 2 | 543-6] 3 | 385-3 15 12] 0 12-62|| 2 | 533-4]| 3 | 576-2119 19 | Oo 17-22|| 2 | 545-9|| 3 | 436-4 15 15-88] 17 | 542-9|| 18 | 569-0 30 19.28 || 32 | 340-7|| 33 | 457-9 30 15-58 | 31 | 542-3 || 32 | 562-0] 19 20 || Oo 19-59|| 2] 535-7|| 3 | 476-1 45 14-06 | 46 | 534-9]| 47 | 564.0 15 20:09 || 16 | 535-5|) 17 | 483-0 15 13 |} 0 14-64) 2] 535-4]/ 3 | 566-6] 19 21 | 3 15-83] 4 | 531-5]! 5 | 504-1 45 13-22}! 47 | 535-9] 48 | 571-3 15 15-85 || 17 | 529-9|| 18 | 510-2 15 14 || 0 14-60} 2] 534.0]) 3 | 574.2 20 15-64 || 21 | 530-3]| 22 | 511-8 = -| 19 22*| 0 17-49} 2 | 530.2|| 3 | 529.4 16 19 | 0} 25 18-30] 2] 540-8|| 3 | 596-5 } 10 | 22-20|| 12 | 537-7|/ 13 | 596-5] 20 2 || 0 | 25 24.99|| 2] 535.4/| 3 | 585-9 | 15 | 23-07 || 17 | 538-4|] 18 | 594.9 20 20-18 || 22 | 534-0 || 23 | 594-8 | 20 22-50 | 30 21-63 || 32 | 537-5 || 33 | 600-5 | 25 21-61 || 27 | 543-1|| 28 | 588.0 45 24-69 || 47 | 532-7|| 48 | 609-5 30 20-40 | 32 | 546-3|| 33 | 585-5 51 25-63 || 52 | 533-9]! 53 | 612-0 35 19-41 | 37 | 547-9|| 38 | 583-4] 20 3 || o 23-65 || 2 | 531-4|| 3 | 621-3 Birinar. k=9-000140. BALANCE. k=0:000010. 5 DECLINATIO} * See notes on the Aurora Borealis, after the Extra Observations of Magnetometers. Jan. 204 24 51™, Clock put right ; error previously +46. ExtrA OBSERVATIONS OF MAGNETOMETERS, JANUARY 20—24, 1845. 93 — f: Gott. BIFILAR BALANCE Gott. BIFILan BALANCE ae ae Mean DECLINATION. Corrected. Corrected. Mean DECLINATION, Corrected. Corrected. Zs Time. Time. . |Mic.Div.} ad. h Min. < l Min. | Se. Diy. || Min. | Mic.Div.J 4. h. || Min. e 4 Min. | Se. Div. || Min. | Mic. Div. 629-4] 22 9 0 | 25 11-44 2 | 540-8 604-8 | 24 20 | 25 14-10]} 22 | 524-8]} 23 | 647-1 636-2 16 14-06 || 17 | 540-7 || 18 | 602-9 30 13-20 || 32 | 524-5]] 33 | 650-3 643-8 38 16:75 || 39 | 535-2 || 40 | 604-6] 24 7 0 16-80 2 | 524-6 3 | 653-2 649-4 45 16-41 || 46 | 535-7 || 47 | 603-2 36 07-84 || 37 | 518-0]| 38 | 659-1 654-5] 22 10 0 14-77 2 | 536-0 3 | 604-9 | 40 | 03-77 || 42 | 534-8 || 43 | 648-8 663-3 = 45 10-47 || 47 | 533-0] 48 | 647-9 665-0} 23 10 0 | 25 11-99 2 | 527-2 3 | 594-2 * 50 12-15 || 52 | 530-7]| 53 | 642-5 667-7 15 02-01 || 17 | 536-1 |] 18 | 587-8 55 | 08:14 || 57 | 550-5]| 58 | 629-0 674-6 20 01-41 || 22 | 537-6]| 23 | 588-7 | 59 | 556-5 677-6 25 02-96 || 27 | 537-5 || 28 | 594-1] 24 8 0 | 15-34 2 | 547-3 3 | 629-4 675-7 30 05-82 || 32 | 536-8 5 | 19-53 7 | 532-5 8 | 631-4 670-1} 23 11 0 12-92 2 | 529-0 3 | 588-9 10 20-74 || 12 | 527-7)|| 13 | 632-3 665-1 20 09-35 || 22 | 531-8 |) 23 | 587-0 | 15 | 18-50 || 17 | 531-2]| 18 | 628-0 651-2 40 06-77 || 42 | 531-7 || 43 | 582-6 | 20 18-30 || 22 | 532-6|| 23 | 627-5 642-7 50 04-41 || 52 | 530-9 || 53 | 578-2 30 | 16-08 || 32 | 534-9]/ 33 | 624-6 631-5 55 03-23 || 57 | 529-6|| 58 | 576-0 40 15-07 || 42 | 536-8]| 43 | 623-0 624-2} 23 12 0 01-83 2 | 529-6 3 | 574-4 50 13-41 || 52 | 544-7|| 53 | 616-6 606-1 10 01-45 | 12 | 527-2] 13 | 575-9] 24 9 0 15-47 2 | 539-0 3 | 618-9 621-1 20 03-02 || 22 | 534-9 |) 23 | 579-2 10 15-74} 12 | 535-7|| 13 | 619-3 621-4 35 05-40 || 37 | 533-3 || 38 | 581-9} 24 10 0 14-20 2 | 534-8 3 | 612.4 618-0 50 08-83 || 52 | 529-2]| 53 | 587-6 10 10-27 || 12 | 538-7|| 13 | 612-1 607-0} 23 13 0 10-20 2 | 528-1 3 | 589-5 20 | 25 03-81 || 22 | 543-0]) 23 | 608-5 603-0] 23 14 0 09-89 2 | 529.2 3 | 586-0 24 | 553-6 586-6 10 14-33} 12 | 532-5 || 13 | 579-4 25 | 24 59-50]! 26 | 561-9 584-8 15 14-46 || 17 | 533-9]! 18 | 570-3 27 | 562-5]) 28 | 599.4 581-7 20 13-02 || 22 | 533-4 || 23 | 563-2 29 | 563-3 581-2 25 10-77 || 27 | 533-6 || 28 | 558-4 30 | 25 03-06 || 32 | 562-7]| 33 | 595-5 575-8 30 07-67 || 32 | 537-7 || 33 | 554-3 35 05-15 || 37 | 562-3 |) 38 | 592.2 574-2 35 07-00 || 37 | 536-1 || 38 | 553-0 40 09-66 || 42 | 556-9}! 43 | 589.6 574-6 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 | 585-1 539-3 3 | 569-3 50 08-70 || 52 | 536-5 || 53 | 542.3 55 12-62 || 57 | 543-4]! 58 | 577-5 | 539-3 || 13 | 567-6 55 11-91} 57 | 529-9} 58 | 533-9} 24 11 0 14-15 2 | 545-3 3 | 571-8 539-5 || 18 | 564-0} 23 15 0 12-36 2 | 522-1 3 | 520-5 5 15-81 7 | 543-3 8 | 567-0 540-6 || 22 | 560-1 5 11-37 7 | 516-0 8 | 506-4 * 10 16-63 || 12 | 540-8 ]/ 13 | 562-7 542-8 || 28 | 556-7 10 09-79 || 12 | 511-7 || 13 | 496-1 15 17-67 || 17 | 536-3 || 18 | 559-1 |} 540-1 |) 33 | 555-4 15 08-11 || 17 | 505-2 }| 18 | 486-9 20 17-76 || 22 | 530-5]| 23 | 557-0 | 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 | 554.4 538-6 3 | 555-1 30 | 24 59-36 || 32 | 527-8 || 33 | 486-1 35 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 : 3 | 602-2 40 01-38 || 42 | 534-6 || 43 | 486-3 45 05-52 || 47 | 522-5]! 48 | 552-4 | | 533-9 8 | 602-2 45 02-22 || 47 | 536-8 || 48 | 484-0 50 04-98 || 52 | 523-8]| 53 | 541-4 535-6 || 13 | 599-9 50 02-96 || 52 | 535-3 || 53 | 483-3} 24 12 0 09.42 2 | 515-0 3 | 562-6 23 | 595-3 55 02-75 || 57 | 536-2 || 58 | 481-7 5 07-08 7 | 514-0 8 | 566-5 33 | 592-9] 23 16 0 02-86 2) 536.4 3 | 480-0 10 06-68 || 12 | 512-9] 13 | 570.2 43 | 591-0 5 03-50 7 | 535-7 8 | 478-1 15 05-45 || 17 | 515-5 || 18 | 573-7 3 | 589-6 30 06-06 || 32 | 522-1) 33 | 485-7 20 04-55 || 22 | 514-2]) 23 | 575-8 3 | 580-4 35 06-12 || 37 | 521-8|| 38 | 489.4 25 03-35 || 27 | 510-9]| 28 | 578-8 13 | 579-9 55 10-18 || 57 | 528-6 || 58 | 503-7 30 03-04 || 32 | 513-3]| 33 | 581-5 35 | 578-3] 23 17 0 11-81 2 | 530-0 3 | 506-0 35 04-46 || 37 | 514-7|| 38 | 584-0 3 | 563-3 10 13-16 || 12 | 530-4 || 13 | 508-4 40 04-24 || 42 | 512-3] 43 | 586-9 33 | 569-7 20 12-48 || 22 | 533-7 || 23 | 510-0 45 04-58 || 47 | 512-4]) 48 | 592-0 37 | 571-4 30 11-84 || 32 | 533-3 | 33 | 513.4 50 . 05-13 || 52 | 513-7]| 53 | 594-8 52 | 573-9] 23 18 0 11-68 2 | 532-2 3 | 531-2 55 06-46 || 57 | 518-1 || 58 | 598-7 3 | 572-9] 23 21 0 19-51 2 | 531-2 3 | 561-2] 24 13 0 07-49 2 | 519-9 3 | 600-7 23 | 572-7 15 19-48 || 17 | 535-2|| 18 | 560-7 5 07-45 7 | 521-3 8 | 600-7 3 | 574.5] 23 22 0 14-91 2 | 537-4 3 | 559-4 * 10 07-62 || 12 | 521-3]| 13 | 599-3 3 | 572-9 20 05-76 || 22 | 524-1]) 23 | 600-1 31 | 572-1] 24 6 0 | 25 11-74 2 | 519-6 3 | 644-6 31 09-32 || 32 | 525-1]) 33 | 601-8 3 | 571-7 10 12-76 || 12 | 522-6 || 13 | 646-6 35 10-13 | 37 | 525-81| 38 | 598-5 Birinar. k=0:000140. BaLancE. k=0:000010. AG, AND MET. oBS. 1845, * See notes on the Aurora Borealis, after the Hxtra Observations af Magnetometers. ExtTRA OBSERVATIONS OF MAGNETOMETERS, JANUARY 24—27, 1845. Gott. = Gott. DECLINATION. Piste Cena Mean DECLINATION. Rese aes Mean DECLINATION, Time. Time. ! Min}; % (¢ Min. | Se. Div. | Min. | Mic. Div.J d. sh. |] Min. | ° c Min, | Se. Div. || Min. |Mic.Div.J d. bh. || Min.} © 7 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 | 25 133 50 14-38 | 52 | 525-1 || 53 | 583-9 30 11-05 || 32 | 525-7 || 33 | 656-6 45 11-2 0 15-34 2 | 529-1 3 | 572:5 35 06-79 || 37 | 529-8 || 38 | 653-4 50 10 13-12 || 12 | 536-0} 13 | 562-0 40 05-49 || 42 | 543-9) 43 | 647-6 15 16-73 || 17 | 538-4|| 18 | 561-3 45 11:52 || 47 | 535-5 || 48 | 650-4] 26 15 20 21-44|) 22 | 533-4|) 23 | 556-3 50 11:01 || 52 | 534-3] 53 | 646-9 7 25 22-03 || 27 | 535-5 || 28 | 553-8 55 13-29 || 57 | 536-0) 58 | 644-6 30 20-80 || 32 | 529-7|| 33 | 547-7] 25 7 0 12-16 2 | 534.2 3 | 642-4 35 15-59 || 37 | 529-5 || 38 | 541-1 10 13-46 |} 12 | 532-1 || 13 | 639-1 40 11-21 || 42 | 532-3}) 43 | 537-8 20 11-15 || 22 | 531-9}| 23 | 636-4 45 08-05 || 47 | 532-9) 48 | 536-0 30 11-37 || 31 | 537-6 || 32 | 633.4 50 06-59 || 52 | 531-2)) 53 | 538-1 45 14-13 || 46 | 534-1 || 47 | 628-6 0 04-29 2 | 530-4 3 | 549-6] 25 8 0 14.03 2 | 536-2 3 | 620-9 10 07-78 || 12 | 527-4)) 13 | 560-3 30 12-18 || 31 | 535-6 || 32 | 616-3 | 15 09-35 || 16 | 526-5 || 17 | 562-7 50 12-78 30 12-95 || 32 | 525-4) 33 | 573-5] 25 9 0 09-05 2 | 529-1 3 | 610-7] 26 16 45 12-35 || 46 | 529-6]! 47 | 578-1 5 | 25 00-20 7 | 538-1 8 | 601-7 * 0 13-59 2 | 531-9] 3 | 583-6 10 | 24 52-50|| 12 | 565-9 || 13 | 590.4 31 12-58 || 32 | 532-5 || 33 | 590-5 14 | 569-8 0 12-36 2 | 532-3 3 | 593-6 15 | 24 58-65) 16 | 569-0 34 13-46 || 35 | 535-0 ]| 36 | 592-7 17 | 567-7 || 18 | 589-1 0 13-02 2 | 536-7 3 | 591-9 19 | 566-2 0 12-89 2 | 538-8 3 | 587-6 20 | 25 03-47 || 22 | 560-3 || 23 | 588-9 20 14.40 || 22 | 536-4]) 23 | 588-2 25 02-93 || 27 | 555-1|| 28 | 585-7] 26 17 30 14.33 || 32 | 536-5 || 33 5a 30 02-59 || 32 | 555-2 || 33 | 582-5 0 18-03 2 | 538-5 3 | 584-7 35 04-91 || 37 | 549-5 || 38 | 582-9] 26 18 0 17-09 2 | 532-5 3 | 590-6 40 06-66 || 42 | 541-7] 43 | 584.5 30 16-41 || 32 | 534-4} 33 | 601-2 45 07-18 || 47 | 534-5 || 48 | 586-5 43 16-35 || 44 | 539-1]! 45 | 598-3 50 07-87 || 52 | 533-5 || 53 | 586-5 0 18-27 2 | 540-8 3 | 597-4 55 08-65 || 57 | 533-4) 58 | 587-1 12 20-13 || 13 | 540-5 || 14 | 598-1} 25 10 0 10-16 2 | 530-0 3 | 589.3 0 20-27 2 | 521.7 3 | 609-3 10 11-57 || 12 | 535-1 || 13 | 588-8 12 | 526-9}! 13 | 614-5 20 14-43 || 22 | 535-1 || 23 | 585-8 30 21-66 || 31 | 533-6 |) 32 | 621-2 30 12-87 || 32 | 539-1 || 33 | 581-2 37 | 524-5 || 38 | 623.4 45 12-95 || 47 | 533-0] 48 | 583-4] 26 19 40 19-64 || 42 | 526.7 25 11 0 11:37 2 | 534-7 3 | 586-2 53 | 538-8 || 54 | 625-4 10 11-93 || 12 | 536-1 || 13 | 587-0 0 19.29 2 | 542.4 3 | 628-4 20 11-51 |} 22 | 537-6 |) 23 | 585-7 | 10 21-06 || 12 | 540-9 || 13 | 628.2 30 12-96 || 32 | 534-0 || 33 | 587-6 | 50 22.20 || 52 | 538-9) 53 | 628-0 40 13-02 |} 42 | 533-1 0 22-13 2 | 537-9 3 | 626.2 52 | 536-7 || 53 | 583-7 | 40 22.64 || 42 | 518-4]| 43 | 640-6] 25 12 0 10-20 2 | 546-9 3 | 577-2] 26 20 0 13-86 2 | 536.4 3 | 648-8 10 11-86 || 12 | 564-3 || 13 | 565-8 10 13-29 || 12 | 542-8 || 13 | 652-8 15 15-94 || 17 | 558-4} 18 | 563-8] 26 21 | 25 15:04 || 27 | 543-2} 28 | 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 | 45 20-05 || 47 | 543-1 || 48 | 652-6 40 14-82 || 42 | 532-6 }| 43 | 557-5 | | 58 21-90 || 57 | 535-5 ]| 58 | 650-2 a = = 27nn 4 5 || 0 21-06 2} 533-4|| 3 | 646-7] 26 13 O | 25 14-18 2 | 530-0 3 | 524-7] 27 6 | \ 10 18-94] 12 | 527-3] 13 | 642.9 *! 10 11-95 || 12 | 532-0}! 13 | 529.0 20 17-56 || 22 | 531-1 23 | 642.3 15 | 11-14 || 17 | 534-7] 18 | 531-1] 27 7 | 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 | 647-4 30 09-39 || 32 | 527-9|| 33 | 539-4} 27 10 | 35 14-64 || 37 | 528-5 | 38 | 643-2 | 35 08-66 || 37 | 531-3] 38 | 542-0 I 40 10-97 || 42 | 540-1) 43 | 640.8 | 40 09-02 || 42 | 533-9) 4 545-5 i} 45 11-14] 47 | 545-3) 48 | 640-3 55 10-70 || 57 | 536-9 || 58 | 554-8 50 11-10} 52 | 544-2 |! 53 | 641-5] 26 14 0 12-49 2 | 537-3 3 | 558-2 | | O 13-16 2 | 542-5] 3 | 641-7 *! 15 18-94 || 17 | 532-2]| 18 | 558.1 | | 10 15-07 || 12 | 536-6] 13 | 644-1 20 18-32 || 22 | 532-9 15 16-48 || 17 | 528-0] 18 | 649-5 25 18-67 || 27 | 532-4 27 11 20 16-62 || 22 | 524-51! 23 | 655-5 30 16-46 |} 32 | 532-3 | Biriar. k=0-000140. BaLancE. k=0:000010. * See notes on the Aurora Borealis, after the Htra Observations of Magnetometers. 539. 540-9 é 41-8 | 539-4 5 41-3 539-6 542-0 538-3 Extra OBSERVATIONS OF MAGNETOMETERS, JANUARY 26—29, 1845. BALANCE oe ’ BIFILAR BALANCE Gotie amyea st Birizak || BaLance Corrected. Mean DECLINATION. Corrected. | Corrected. Mean DECLINATION. || Qoprected. || Corrected. Time. | Time. Min. | Mic. Div. d. h. Min, Z 4 Min. | Se. Diy. Min, | Mic. Div. dad. h. Min. 2 ~ | Min. | Se. Div. || Min. | Mic. Div, 43 | 553-0] 27 11 || 35 | 25 10-63|| 37 | 538-4] 38 | 560-6] 28 11 | 40 | 25 12-69) 42 | 510-4) 43 | 529-0 48 | 553-9 40 10-43 || 42 | 538-4] 43 | 561-0 45 | 25 03-70|| 47 | 522-2]| 48 | 539-5 53 | 555-9] 27 12 || 0 10-97|| 2 | 538-8] 3 | 563-6 | 50 | 24 55-84] 52 | 539.7] 53 | 545-5] 58 | 557-5 10 10-67 || 12 | 535-9] 13 | 566-4 | 55 | 24 55-80 57 | 545-9) 58 | 545-4 3 | 558-4 45 12-22|| 47 | 534.5 || 48 | 570-0] 28 12 || 0 | 24 59-66| 2 | 548-8) 3 | 542-8 8 | 559-7] 27 13 || 0 12-11|| 2 | 534-6] 3 | 572-0 | 5 | 25 04-41] 7 | 543-5] 8 | 542-3 SS om | 10 | 08-34) 12 | 540-4 18 | 562-7] 28 4 | 0O| 25 19-34|| 2] 540-1] 3 | 603-0 | 15 | 11-62) 17 | 528-3) 18 | 544-6 23 | 563-2 15 17-06 || 17 | 543-1| 18 | 614-4 | 20 | 10-43 || 22 | 523-6 | 50 17-80 || 52 | 525-2)| 53 | 618-0 30 | 10-40 |) 32 | 525-0] 33 | 547-4 33 | 566-1] 28 5 || O 15-38] 2 | 524.9] 3 | 623-1 | 40 12-04 || 42 | 521-3) 43 | 549.3 25 09-56 || 27 | 520-7| 28 | 638-2] 28 13 | 0 13-25 || 2 | 528-3] 3 | 550-9 48 | 567-8 35 07-07 || 37 | 526-9 |) 38 | 640-7 | 30 | 16-82 | 32 | 531-1] 33 | 549.4 40 08-01 || 42 | 529-1| 43 | 639-9] 28 14) 0 21-56] 2 | 533-7]) 3 | 541-0 58 | 568-4 45 08-73 || 47 | 533-4] 48 | 639-3 | 10 24-25) 12 | 522-9) 13 | 537-4 3 | 569-0 50 12-75 || 52 | 527-3|, 53 | 640-6 20 | 23-12 || 22 | 520-8 || 23 | 534-7 13 | 574-5 55 12-95 |) 57 | 527-6] 58 | 640-8 | 40 | 16-92 | 42 | 526-9) 43 | 531-6 18 | 576-4] 28 6] 0 13-05 || 2 | 528-1] 3 | 638-6] 25 15 | Oo 12-92|| 2 | 529-8|| 3 | 537-7 28 | 578-2 10 14-73 || 12 | 525-6), 13 | 640-3 | 15 | 13-29 || 17 | 532-3] 18 | 547-2 20 14-30 || 22 | 531-3), 23 | 635-0] 28 16 | O 14:15 2 | 533-8] 3 | 560-0 35 15-12|| 37 | 530-1| 38 | 630-2] 28 19 | 0 23-45 || 2 | 534-8] 3 | 558-6 DBnn 7; 0 16-26 |) 2 | 528-0] 3 | 633-4 i Si} 23-54) 7 | 536-1} 8 | 556-1 55 | 580-6 20 13-72 || 21 | 530-5), 22 | 636-1 10 23-49 | 12 | 536-4 || 13 | 552-6 3 | 583-8] - *| 35 10-41 || 37 | 536-8] 38 | 636-1 15 | 24-35 | 17 | 537-1] 18 | 549-0 23 | 583-4 40 11-30) 42 | 537-3) 43 | 636-4 | 20 | 24-08 | | 3 | 580-0] 28 8 |) O 09-10|| 2 | 540-4) 3 | 641-4 | 30 24-32 || 32 | 541-3 || 33 | 541-2 18 | 581-0 12 09-87 || 13 | 534-6] 14 | 643-2 | 35 24-32 | 37 | 540-8] 38 | 539-3 28 | 582-2 28 06-32 || 29 | 539-4 | 40 24-08 || 42 | 539-3 || 43 | 537-7 33 | 582-3 *| 30 12-04 || 32 | 530-9|\ 33 | 645-0 | 50 24-22 |) 52 | 541-9) 53 | 535-1 35 01-51|| 37 | 546-1|| 38 | 622-2] 28 20 || 0 25-11] 2 | 539-6] 3 | 534-5 43 | 580-8 40 09-73 || 42 | 536.4|| 43 | 621-7 | 15 26-18 | 17 | 535-7 |) 18 | 528-1 48 | 581-2 45 12-45 || 47 | 527-1] 48 | 633-6 | 20 25-76 | | 51 07-74|| 52 | 533-1) 53 | 622-1 || 26 25:24 || 27 | 536-6) 28 | 525.6 58 | 579-2 55 10-14|| 57 | 534-7|| 58 | 623-7 | 30 26-13 | 32 | 534.4]] 33 | 525.7 3 | 579-9] 28 9] 0 12:15|} 2 531-0] 3 | 632-5 | 35 24-86 | 37 | 532-5) 38 | 525-2 8 | 580-9 5 12-35 || 7 | 526-1|| 8 | 641-8 40 23-32 || 42 | 534-8] 43 | 524-3 10 10-92 || 12 | 531-7|| 13 | 648-3 haz ie eS8sail 18 | 580-5 15 10-97 || 17 | 527-3|| 18 | 652-5] 28 21 | 5 | 24.84) 7 | 536-5] 8 | 529-2 28 | 580-8 21 08-03 || 22 | 531-4] 23 | 654-7 | 20 25-67 | 22 | 539-6 |) 23 | 525-7 25 06-76 || 27 | 527-3|| 28 | 654-4 30 23-85 | 32 | 541-3] 33 | 522.7 48 | 583-7 30 03-92 | 32 | 528-9] 33 | 650-3 | 35 22:58 || 37 | 543-3) 38 | 521-6 3 | 587-5 35 03-67 || 37 | 530-3 || 38 | 646-6 \| | 39 | 546-0 33 | 586-7 45 08-12) 47 | 535-8|| 48 | 638-4 40) 22.67 || 42 | 542-6|| 43 | 522-9 3 | 582-4 50 09-13 | 52 | 531-3]| 53 | 635-5 | 45 | 20-94 | 46 | 540-0 28 10 | 0 13-12|| 2 | 524.3|| 3 | 632-3 I | 47 | 541-3) 48 | 523-5 3 | 616.3 10 12-40 | 12 | 513-1) 13 | 625-1 | 50 | 20-92) 51 | 543-3 | 33 | 615-2 15 10-38 || 17 | 512-2) 18 | 620-1] 28 22 | 0 | 21-73|| 2 | 539:0] 3 | 524-8 3 | 617-0 20 08-75 | 22 | 509-2) 23 | 615-3 | 15 22-92 17 | 540-9) 18 | 528-6 3 | 606-4 25 07-64) 27 | 509-4 | 28 | 613-3 | 35 | 21-86 | 37 | 533-9] 38 | 538-1 18 | 600-1 30 06-26 || 32 | 511-4|| 33 | 613-5 | 50 | 17-60 | 52 | 540-7) 53 | 538-0 3 | 597-8 35 04-04 37 | 513-8) 38 | 611-9] 28 23 | 0 | 25 16:03) 2 | 539-6) 3 | 541-2 40 02-80 | 42 | 514-1) 43 | 608-1 l i 3 | 578-5 45 04-24|| 47 | 518-6]) 48 | 606-5] 29 6 || 0+ 24 59-63) 2 | 532-5) 3 | 622-2 8 | 578-3 50 05-11 || 52 | 520-5] 53 | 605-1 || 5 | 24 58-05] 7 | 537-7] 8 | 623-8 13 | 578-4 55 05-35 || 57 | 522-1) 58 | 603-1 | 10 | 24 58-99] 12 | 539-4 | 23 | 580-3] 28 11 || 0 06-19|| 2 | 523-1|) 3 | 600-5 | 15 | 25 00-91] 17 | 538-7] 18 | 623.3 33 | 578-8 10 09-86 || 12 | 523-8) 13 | 594-9 | 20 | 25 00-71) 22 543-4 | 23 | 619-8 43 | 579-6 20 16-13 || 22 | 556-6) 23 | 549-2 | 25 | 25 00-48 27 | 542-9 | | 53 | 580-4 25 18-68 || 27 | 549.0) 28 | 524-9 30 | 24 59-97]| 32 | 540-2) 33 | 620-2 3 | 567-3 30 22-50 || 32 | 537-7|) 33 | 519-4 | 40 | 25 02-12|| 42 | 535-5 |) 43 | 633-3 13 | 563-4 35 19-73 || 37 | 521-4|| 38 | 520-1 45 | 24 56-23|| 47 | 546-7]| 48 | 628-8 Birivar. k—0'000140. BALANCE. k=0-000010. * See notes on the Aurora Borealis, after the Extra Observations of Magnetometers. 96 EXTRA OBSERVATIONS OF MAGNETOMETERS, J ANUARY 29—FEBRUARY 5, 1845. | i] | or | : _ || Brean || Batance | GOtt- BIFILAR | Barance | Ott. 7 Mean || DECLINATION. Goreactead® Gorracted. Mean DECLINATION. || Corrected. || Corrected. Mean DECLINATIO} Time. Time. | Time. | dad. bh. i Min. e “4 | Min. | Se. Div. Min. | Mic. Div. a bh Min. ‘4 ‘ Min. | Sc. Diy. || Min. | Mic. Div. d. oh. || Min. i! 7 29 6 || 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 21sg6i) | 55 11-21 | 57 | 521-2]| 58 | 645-8] 30 6 0 14.53 || 2 | 538-9|| 3 | 598-9 35 22 29 7 0 | 05-29 | 2 | 524-7 | 3 | 645-0 30 17-56 | 32 | 534-7 33 | 599-6 40 22 sade |) 06:30) 7 | 527-4 8 | 647-7] 30 7 0 16-68 2 | 536-1|| 3 | 600-9 45 21. 15 13-69 | 17 | 531-4|| 18 | 679-2] 30 8 || O | 25 02-89) 2 | 523-7 | 3 | 608-3 50 21 20 12-22 || 22 | 521-3)! 23 | 702-6 5 | 24 56-54] 7 | 532-4 8 | 606-4 55 23. | 25 04-75 || 27 | 527-5|| 28 | 685-5 10 53-81 || 12 | 544-2/| 13 | 603-7] 5 61) O 4 30 07-55 || 32 | 527-4|| 33 | 674-1 15 55-33 || 17 | 547-7 || 18 | 602-5 5 | 35 08-99 37 | 533-6|) 38 | 662-2 20 55-20 || 22 | 550-1/| 23 | 600-8 10 | 40 12-18) 42 | 536-4 || 43 | 659-4] 30 8 || 25 56-13 || 27 | 556-8|| 28 | 595-8 15 || 50 18-30 | 52 | 529-6) 53 | 659-7 30 57-10) 32 | 558-4 || 33 | 592-2 20 29 8 0 16-68 || 2 | 531-2|| 3 | 656-3 35 | 24 58-45 || 37 | 559-9|| 38 | 589-3 25 || 10 14-67 | 12 | 529-3|| 13 | 654-2 40 | 25 01-78]! 42 | 556-6), 43 | 586-5 30 30 17-37 || 32 | 534.1]! 33 | 633-2 45 03-92 || 47 | 551-2|) 48 | 584-6 35 29 9 0 14-43 2 | 527-0|| 3 | 616-8 50 05-56 || 52 | 545-9]| 53 | 583-3 40 10 02-05 || 12 | 535-6 || 13 | 600.3 55 07-60 |) 57 | 539-6] 58 | 583-0 50 | 15 05-00 | 17 | 541-8] 18 | 596-5} 30 9 0 07-74|| 2 | 535-1 3 | 583-1] 5 7 0 || 25 08-55 || 27 | 541-6] 28 | 586-5 10 07-13 || 12 | 524-3] 13 | 584-5 10 40 12-28 || 42 | 522-3 |) 43 | 588.2 15 05-99 || 17 | 528-7|| 18 | 582-9 20 || 50 | 25 05-15 || 52 | 543-1]| 53 | 578-8 20 05-99 | 22 | 531-0 30 || 55 | 24 57-24)| 57 | 577-9|| 58 | 560-2 41 10-70 || 42 | 529-8) 43 | 584-5 40 29 10 || 0 | 25 03-60|| 2 | 584-2] 3 | 544-8 | 45 11-71 || 47 | 528-7 || 48 | 584-2 50 16: 5 10-14 || 7 | 569-3 8 | 539-4 55 12-08 || 57 | 527-8] 58 | 583-5] 5 8 0 16: | 10 | 14.46 || 12 | 552-1|| 13 | 531-6] 30 10*/ O 12-01 2 | 529.9 | 3 | 582-2 *| 30 14 | 15 14-80 | 17 | 543-6 || 18 | 524-8 10 13-20 || 12 | 532-7/| 13 | 579-9] 5 9 0 15: || 20 16-82 || 22 | 537-0 20 13-61 || 22 | 531-8]! 23 | 579-0 *| 30 IL | 30 17-49 || 32 | 523-0]| 33 | 526-6 30 13-63 || 32 | 532-4|| 33 | 576-9] 5 10 0 124 45 15-47 || 47 | 526-2|| 48 | 522-7} 30 11 0 14-03 2 | 535-9 3 | 570-6 *! 10 13: 29 11 |} O 12-80) 2 | 533-3 3 | 516-0 a 5 11 0 13 | 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 20 09-96 || 22 | 514-9]| 23 | 516-6} 31 3 0 17-09 || 2 | 532-4 3 | 585-4] 5 12 0 11 | 25 05-32 || 27 | 518-5 || 28 | 519-7 | are —— *! 10 11. || 30 01-34 | 32 | 528-2]) 33 | 521-6] 1 11 0 | 25 13-46]| 2 | 535-5 3 | 579-3 25 12 || 35 01-51 || 37 | 547-1|| 38 | 521-9 15 10-00 || 17 | 545-3) 18 | 571-9 35 12 | 40 04-95 || 42 | 539-2|| 43 | 523-0 30 11-71 || 32 | 536-2|| 33 | 573-8 40 11 45 08-46 || 47 | 536-2|| 48 | 519-7 50 12-95 || 52 | 544-9] 53 | 568-3 45 11 50 09-86 | 52 | 532-0 55 13-86 || 57 | 545-1 || 58 | 566-7 50 10 29 12 0 09-69 2 | 526-2 3 | 629-5] 1 12 0 14:06 |) 2 | 543-5 3 | 565-2 55 09 | 5 08-65 || 7 | 525-9|| 8 | 532-0 A 12 12-46 || 13 | 539-7|| 14 | 563-5] 5 13 0 09 | 10 07-44 || 12 | 528-8]/ 13 | 532-5 30 11-14 || 31 | 536-8 || 32 | 565.2 ball) 10 20 09-86 || 22 | 529-7] 23 | 536-1 47 11-54) 48 | 533-3 |) 49 | 567-0 10 06 || 25 10-43 || 27 | 529-9|) 28 | 536-8 = 15 08 30 11-46 | 32 | 530-9|) 33 | 537-7] 3 15 0 | 25 07-94]| 2 | 535-3 3 | 558-6 20 || 40 12-93 || 42 | 530-3 || 43 | 540-0 30 11-24 || 32 | 535-7 || 33 | 563-3 25 || 50 14-43 || 52 | 528-5]) 53 | 543-2] 3 16 0 12-11 2 | 535-5 3 | 562-1 30 29 13 || 0 12-73|| 2] 521-9) 3 | 547-4 — 35 || 10 09-10) 12 | 525-8} 13 | 549-9] 4 8 0 | 25 13-23|) 2 | 531-0|| 3 | 575-4 40 || 20 11-10 || 22 | 527-3] 23 | 556-1 15 10-94 17 | 531-8]! 18 | 579-1 45 06 | 30 13-09 || 32 | 526-2|| 33 | 559-7] 4 9 0 13-14|| 2 | 537-1 3 | 580-2 50 DE 29 141) 0 | 14-87 2 | 528-9 3 | 564-1 = 5 14 || 0 é | 10 15-07 | 12 | 529.2|| 13 | 566-9 5 4 0 | 25 21-50]) 2 | 546-9] 3 | 597-1 10 08 29:15 || 0 16-26 || 2 | 528-0|| 3 | 570-3 | 6 23-88] 7 | 543-7|| 8 | 600-0 30 | 10 17-09 || 12 | 529-4|) 13 | 570-3 10 | 23-88 || 12 | 541-1|/ 13 | 601-7] 5 15 0 | 15 17-51 | | 20 23-54 || 22 | 543-7 || 23 | 603-0} 5 19 0 29-16 || 0 12-01 2) 532-2)) 3 | 567-7] 5 5 || O 27-42) 2 | 535-5 3 | 640-1 10 | 15 12-82 | 16 | 530-1|| 17 | 571-9 | 5 24-89 || 7 | 535-8|| 8 | 643-9 20 29 17 || O 12-29 || 2] 530-4]| 3 | 575-5 10 25-09 | 12 | 542-1]| 13 | 655.7 30 \| | | 15 26-23 | 17 | 535-6|| 18 | 668-5 40 30 5 || 0 | 25 16-62 | 2 | 529.6|| 3 | 591-6 || 20 25-49 || 22 | 531-0]/ 23 | 682-2] 5 20 0 | | 32 | 534-6 || 33 | 597-5 25 23-27 | 27 | 527-9)| 28 | 687-0] 5 22 0 i: BrriLar, k=0:000140. BaLance. k=—0-000010. * See notes on the Aurora Borealis, after the Extra Observations of Magnetometers. a G. ExtTrA OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 5—20, 1845. 97 Gott. BIFILAR BALANCE Gott. BIFILAR BALANCE aaa] Mean DECLINATION. Gornescted: G@uenccren Mean DECLINATION. I) Mopeeected | Goreentaa: Time. Time. Min. | Mic. Div. dh. |} Min. a 4 Min.| Se. Div. || Min. | Mic. Div. d., “h. Min. i te Min. | Se. Div. || Min. | Mie. Div, 33 | 689-4] 5 22 || 30 | 25 25-83] 32 | 509-3) 33 | 580-4] 12 15 | 10 | 25 11-71|| 12 | 534-9!) 13 | 523-8 38 | 690-8 46 23-95 || 47 | 514-1] 48 | 581-0 30 11-77 || 32 | 536-1 33 | 530-0 43 | 695-8} 5 23 0 23-72 2 | 520-2)! 3 | 583-7] 12 16 0 10-21 2 | 537-3|| 3 | 536-7 48 | 698-3 20 20-38 || 22 | 527-2) 23 | 579-1 = i } 53 | 705-8 34 20-18}| 35 | 533-4)) 36 | 579-0 13 14 0 | 25 16-50 2 | 541-9 3 | 553-1 58 | 721-6] 6 O 0 22-01 2 | 528-3 3 | 585-3 30 12-28 |) 32 536-5 | 33 | 551-8 3 | 746-0 - 13 15 0 13-90 |} 2 | 537-9|| 3 | 551-1 8 | 754-4] 710) O| 25 05.29 2 | 527-2 3 | 587-8 } 13 | 763-2 10 06-76 || 12 | 526-1|) 13 | 589-6] 17. 6 0 | 25 09-33 2 | 526-8 3 | 584-3 18 | 769-5 20 06-63 || 22 | 527-1)| 23 | 594-1 5 06-74 || 7 530-8 |) 8 | 585-7 23 | 778-0 30 10-83 || 32 | 533-5 || 33 | 592-4 10 06-46 || 12 | 535-4|) 13 | 586-9 98 | 784-5 40 13-84 || 42 | 540-4] 43 | 582-9 15 06-79 || 17 | 537-5 |) 18 | 586-6 oa T8774 7-11 0 11-57 2 | 531-6 3 | 575-4 31 12-78 || 32 | 537-9|| 33 | 585-9 38 | 777-9 10 09-35 || 12 | 533-7 || 13 | 574-4 35 13:83 || 37 | 534-6]| 38 | 585-4 43 | 769-6 15 09-47 || 17 | 533-3)| 18 | 575-3 45 | 15-24 || 47 | 532-8|| 48 | 584.8 53 | 739-31 7 12*] O 13-47 2 | 535-5 3 | 574-6 55 16-28 || 57 | 532-6] 58 | 584.4 SB ievi-st 7 Lo 0 13-07 2 | 535-8 3 | 570-51 17 7 0 16-06 2 | 533-2 3 | 583-5 13 | 701-3 * 10 14-11 |] 12 | 534-74) 13 | 571-6 — ess 23 | 688-7 15 14-40 || 17 | 535-2 19 13 0 | 25 12-33 2) 547-6 3 | 528-5 33 | 664-9} 7 16 0 14-98 2 | 538-0 3 | 566-6 11 12-11 |} 12 | 545-8 || 13 | 527-5 43 | 655-7 *| 9 13-52 || 10 | 538-9|| 11 | 564-6 20 11-57 || 22 | 542-6}! 23 | 527-0 53 | 649-0} 7 17 0 12-15 2 | 535-2 3 | 568-3 40 11-54|| 41 | 540-9|| 42 | 528-5 3 | 645-3 19 14 0 11-22 2 | 541-3]| ,3 | 529-4 33 | 637-0] 9 13 0 | 25 09-42 2 | 539-5 3 | 561-1 3 | 630-5 15 10-77 || 17 | 538-4|| 18 | 561-0] 20 1 0 | 25 21-91 2 | 555-1 3 | 525-4 33 | 622-6] 9 14 0 04-68 2 | 532-3 3 | 556-5 10 21-90|) 12 | 545-1]} 13 | 530-9 3 | 626-5 10 06-57 || 12 | 529-6|| 13 | 554-6 26 24-05 || 27 | 549-0]] 28 | 533-0 13 | 626-5 20 10-58 || 22 | 527-8|| 23 | 562-2 45 18-21 || 47 | 529-7) 48 | 539-7 3 | 612-7 30 14-11]| 32 | 534.6|| 33 | 558-8] 20 2 0 19-39 2 | 538-4 3 | 541-8 13 | 613-4 45 12-70 || 47 | 537-5|| 48 | 549-1 30 23-34 || 32 | 553-1]! 33 | 543-9 48 | 615-1] 9 15 0 08-56 2 | 535-3 3 | 545-7] 20 3 0 22-03 2) 544-1 3 | 547-1 3 | 609-4 15 11-54)) 17 | 534-0] 18 | 544.3 13 | 613-1 30 11-84 || 32 | 530-1] 33 | 547-8} 20 10 0 | 25 12-31 2 | 549-9 3 | 565-1 28 | 610-7] 9 16 0 13-17 2 533-9) 3 | 547-5 5 05-42 7 | 553-1 8 | 565-9 38 | 605-6] 9 18 0 15-49 2 | 527-7 3 | 556-5 10 | 25 01-81 )) 12 | 557-8|| 13 | 564-8 43 | 603-5 10 16-82 || 12 | 525-9|| 13 | 554-2 15 | 24 58-20)| 17 | 552-0]) 18 | 565-0 48 | 602-8} 9 19 0 14-70 2 | 536-8 3 | 548-2 20 56-10 || 22 | 543-7]! 23 | 567-9 53 | 601-2 15 12-72|| 16 | 539-7 || 17 | 548-8 25 53-41 || 27 | 537-2]! 28 | 570-9 58 | 600-2 38 12-18|] 39 | 541-2]! 40 | 552-7 30 52-53 || 32 | 533-6|| 33 | 574-4 3 | 599-0] 9 20 0 12-29 2 | 541-4 3 | 557-0 35 53-51 || 37 | 533-8|] 38 | 577-2 8 | 598-0 | 40 56-47 || 42 | 534-3 || 43 | 578.8 13 | 589-4] 10 13 0 | 25 12-43 2 | 535-5 3 | 562-7 45 | 24 59-77 || 47 | 532-5|| 48 | 580-1 18 | 583-6 5 12-85 7 | 544-3 8 | 559-8 50 | 25 02-66 || 52 | 530-6|| 53 | 580-4 23 | 582-3 10 14-30 || 12 | 544-9|| 13 | 558-2} 20 11 0 07-92 2 | 528-3 3 | 578-5 38 | 580-5 30 07-46 || 32 | 539-0)| 33 | 555-8 10 10-50 || 12 | 528-6|| 13 | 575-7 33 | 581-6] 10 14 0 14-11 2 | 535-1 3 | 556-3 20 10-60 || 22 | 531-1]| 23 | 572.2 38 | 584-2] 10 15 0 16-55 2 | 539-8 3 | 556-2 30 10-09 || 32 | 535-1 || 33 | 569-8 43 | 584.9 9 17-12|| 10 | 540-7/| 11 | 553-9} 20 12 0 06-77 2 | 540-6 3 | 571-0 48 | 584-3] 10 16 0 13-69 2 | 531-4 3 | 559-0 15 09-32 || 17 | 532-4|| 18 | 572.4 53 | 583-1 —— —| 20 13 0 08-85 2 | 542-9 3 | 564-6 3 | 585-1] 11 11 O | 25 10-85 2 | 537-4 3 | 570-7 30 07-84 || 32 | 530-7|| 33 | 572-8 13 | 585-0 15 11-59 || 16 | 539-3 || 17 | 569-9] 20 14 0 09.42 2 | 533-7 3 | 572:3 32 | 588-6} 11 12 0 13-79 2 | 541-3 3 | 563-7} 20 16 0 14-40 2 | 525-6 3 | 555.8 3 | 592-3 = oe — 10 16-18 || 12 | 528-2|| 13 | 553-0 3 | 583-8] 12 13 0 | 25 09-26 2 | 538-2 3 | 559-3 20 18-47 || 22 | 532-2/| 23 | 546-9 13 | 581-4 20 08-97 || 22 | 535-3 || 23 | 556-7 25 21-12 || 27 | 527-0|| 28 | 543-6 23 | 576-5] 12 14 0 14-43 2) 554-6 3 | 536-2 30 22-67 || 32 | 524-1] 33 | 541-3 33 | 572-0 10 15-74 || 12 | 549-7|) 13 | 530-4 35 22-57 || 37 | 523-5]! 38 | 539-2 43 | 565-5 20 16-19 || 22 | 546-3 || 23 | 525-1 40 23-66 || 42 | 524-2) 43 | 530.7 3 | 570-8 30 15-20 || 32 | 539-8 || 33 | 522-0 45 23-14 |) 47 | 526-3) 48 | 528.2 3 | 579-9] 12 15 0 11-44 2 | 534-4 3 | 521-7 50 22-57 || 52 | 526-7 || 53 | 521-0 Birizar. k=—0:000140. BauLance. k=0:000010. din MET. oss.. 1845. * See notes on the Aurora Borealis, after the Extra Observations of Magnetometers. Irn 98 ExtTRA OBSERVATIONS OF MAGNETOMETERS, FrpruARy 20—24, 1845. Gott. BIFILAR BALANCE Gott: BIFILAR BALANCE Gott. ; Mean DECLINATION. Gomrectede Gommecteds Mean DECLINATION, Gonected: Gorrectan Mean DECLINATIO} Time. Time. | Time. dh. Min. 2 u | Min. | Se. Div. || Min. | Mic.Div.f d. h. Min. x c Min. | Se. Div. |) Min. | Mic. Div. ad. oh. Min. : 4 20 16 || 55 | 25 20-11] 57 | 530-9] 58 | 515-1} 23 12 | 58 | 24 51-66 23.19 || 30 | 25 1655 20 17 0 18-13 2 | 534-7 3 | 511-3] 23 13 | O 52-87 2 | 528-1 3 | 505-4 35 17 10 15-11 | 12 | 533-5] 13 | 506-9 5 55-44 7 | 533-7 8 |} 511-3 50 14. 20 12-04] 22 | 534-8 || 23 | 507-9 10 | 24 58-47]) 12 | 531-9]) 13 | 518-4] 23 20 0 144 30 11-96 | 32 | 532-0|| 33 | 509-5 15 | 25 01-98] 17 | 533-0] 18 | 523-3] | 20 14 20 18 0 08-34 |) 2 | 534-5 3 | 514-0 20 04-41 |) 22 | 529-4]| 23 | 527-1] 23 21 0 1 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 06.06) 20 19}; O 09-84) 2 | 533-4 3 | 524-8 35 05-60) 37 | 528-6 || 38 | 521-2 5 08:7 | 36 15-27 | 37 | 527-1]| 38 | 529-9 41 07-17 || 43 | 527-8|| 44 | 521-3 10 09:35 40 15-61 || 42 | 529-2] 43 | 529-5 45 08-50 || 47 | 526-0]| 48 | 521-4 15 10:27 53 17-93 || 54 | 534-4]) 55 | 526-0 50 08-70}| 52 | 526-0}| 53 | 521-3 30 12 20 20 0 18-75] 2 | 529-2 3 | 527-9 55 09:76 || 57 | 526-1|| 58 | 522-7 35 12. 12 18-50 || 13 | 526-0] 14 | 529.6} 23 14 0 09-30 2 | 528-0 3 | 525-1 47 14. 27 17-96 || 28 | 531-1 ]| 29 | 528-9 10 09-12}) 12 | 529-3 || 13 | 526-9] 24 5 0 1 | 40 19-91] 41 | 535-3 || 42 | 527-2 35 10-80 | 37 | 518-0]) 38 | 528-1 31 13 20 21 0 19-44 2 | 535-2 3 a27e7 40 09.46 | 42 | 516-9|| 43 | 527-6] 24 6 O | 25 14-15 | 15 20-97 | 17 | 540-2) 18 | 526-6 45 09-10 |} 47 | 518-8 || 48 | 529-2 58 | 24 47 20 19-58 || 22 | 538-6 || 23 | 526-2 50 10-18] 52 | 524-6|| 53 | 527-7] 24 7 0 48. 20 22 0 16-72 2 | 534-6 3 | 532-9 55 13-69 || 57 | 521-4|| 58 | 524-6 5 53: | 38 13-25 || 39. | 529-2]| 40 | 541-0] 23 15 0 15-72 2 519-0 3 | 518-6 10 56: 20 23 0 18-01) 2 | 528-1 3 | 542-4 5 17-83 7 | 519-5 8 | 510-7 15 59: | | 0 22-15 2 | 526-7 3 | 554.3 10 18-82|) 12 | 521-0] 13 | 499-5 20 59 | 20 | 22-67 || 22 | 541-7 || 23 | 551-2 15 18-63 || 17 | 519-1] 18 | 489-6 25 | 24 59 | 30 21-37 | 29 | 525-1 20 17-68 || 22 | 517-9 || 23 | 482-4 30 | 25 O14 | 32 | 535-8 || 33 | 554-1 25 16-97 | 27 | 517-1 || 28 | 479.3 35 | 25 00: 34 | 536-5 30 15-54 || 32 | 520-6) 33 | 482-6 50 | 24 54 35 21-88 | 37 | 541-2]) 38 | 552-9 30 16-41) 37 | 523-8 || 38 | 485-8 55 52. 40 | 23-01 || 42 | 545-5 || 43 | 552-2 40 16-46 || 42 | 525-0 || 43 | 482-8] 24 8 0 50¢ 45 | 24-08 || 47 | 542-9]) 48 | 553-5 45 17-13] 47 | 521-3 || 48 | 478-9 ial a 525} | 53 } 21-86 || 57 | 534-9|| 58 | 554-4 50 18-10 || 52 | 516-4 |) 53 | 477-9 10 53 2) 2 0) 20-63 2 | 534-8 3 | 554.8 55 18-00 || 57 | 514-3|| 58 | 478-1 15 52. | 10 | 18-84 || 12 | 534-4]| 13 | 555-7] 23 16 0 17-36 2 | 513-4 3 | 476-7 20 49 20 | 19-28 || 22 | 545-2|| 23 | 557-9 5 15.99 7 | 509-4 8 | 474-1 25 46: | 30 | 23-04) 32 | 544-1]| 33 | 564-8 10 14-44 | 12 | 508-3] 13 | 471-6 30 | 24 55 41 | 22-71 || 42 | 538-3 || 43 | 569-4 15 12-63 | 17 | 513-9]) 18 | 471-8 35 | 25 O1: 45 | 21-70 | 47 | 536-0]! 48 | 572-0 20 12-33 || 22 | 512-8} 23 | 472-5 40 08. 21 3 0 17-70 2 | 530-2 3 | 578-2 25 13-19 || 27 | 513-4]) 28 | 474-7 45 10. 30 15-27 || 31 | 542-3 ]| 32 | 583-1 30 15-14) 32 | 512-6|| 33 | 475-9 50 21 21 4 0 17-00 2 | 541-6 3 | 576-5 35 15-88 || 87 | 516-3] 38 | 474-4 ZL 56 0 | 11-37 2 | 529-7 3 | 596-6 40 16-23 | 42 | 522-3]| 43 | 473-1 55 12s 10 | 25 07-98 || 12 | 528-7] 13 | 598.2 45 16-65 || 47 | 527-2] 48 | 472-8] 24 9 | O 09. 30 | 24 59-50] 32 | 534-1 || 33 | 599.2 50 17-29 || 52 | 530-5 || 53 | 468-5 ll 16 } 35 | 58-42 || 37 | 534-9 55 18-45 || 57 | 528-3 || 58 | 463-2 | 10 04 45 57-24 || 47 | 527-7|| 48 | 606-3] 23 17 0 18-61 2 | 529.7 3 | 458-2 | 18 03: 50 | 57-41 || 52 | 529-0 10 17-10 || 12 | 536-8 }) 13 | 458-8 | 20 02: DATE YA 0 | 24 59-41 2 | 526-5 3 | 610-0 15 16-12 || 17 | 538-8 || 18 | 458-5 | 25 02. 10 | 25 02-45 || 12 | 529-8] 13 | 609-6 20 14-58 || 22 | 535-6]; 23 | 462-0 32 | 25 03: 30 | 08-75 || 32 | 534-3|| 33 | 603-4 30 14:01 || 32 | 528-7 || 33 | 465-7 35 | 24 594 21 8] 0| 14-68 2 | 539-1 3 | 588-5 46 08-08 || 47 | 534-9 || 48 | 476-2 | 403) 24 51 Pie s9) 0 | 03-23) 2 | 546-3 3) 577-7 50 08-95 || 52 | 533-6] 53 | 481-2 | 45 | 24 584 10 | 06-06 | 12 | 543-8] 13 | 575-2 55 09-69 || 57 | 533-6) 58 | 482-4 | 50 | 25 09-8 | 35 | 06-29 | 37 | 544-6|| 38 | 564-9] 23 18 0 11-71 2 | 528-7 3 | 484-7 | 55 134 2110} O 14-53 | 2 | 537-0 3 | 554-1 5 09.44 7 | 535-0 8 | 483-0] 24 10 | O 19. |e 10 10-56 || 12 | 531-8 || 13 | 482-7 ‘| 5 17: } 20 08-03 || 22 | 538-0 |) 23 | 487-0 | 10 13 22 10 0 | 25 06-63 2 | 545-4 3 | 576-2 25 08-95 || 27 | 533-0]; 28 | 491-3 | 15 09. | 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 0 14-57 2 | 533-8 3 | 498-0 | 25 10:28) 40 | 10-75 | 42 | 535-8]| 43 | 570-8 10 14-53 || 12 | 532-1 || 13 | 498-5 | 30 10-70 22 11 0) 10-36 || 2 | 533-0 3 | 571-5 26 15-32 || 27 | 531-4|| 28 502-0 i | 35 [ 09: BIFILAR. k=0-000140, BALANCE. k=0:000010. * See notes on the Aurora Borealis, after the Hatra Observations of Magnetometers. Feb. 234 185 20m, The declination and bifilar magnets have been moving backwards and forwards through a few divisions. Feb, 244 4h 5m, The instruments have evidently been slightly disturbed throughout the day. Feb. 244 8h 40™, Bifilar vibrating 13 se. div. f ExTRA OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 23—25, 1845. 99 BIF Gott. BIFILAR BALANCE Gott. BIFILaR BALANCE tory cited, aes Sai DECLINATION. Corrected. Corrected. pen DECLINATION. Corrected. Corrected. Sc. Diy. || Min. |Mic. Div.J d. h. || Min. | ° , Min. | Se. Diy. || Min. |Mic. Div. d. h. || Min. | ° 4 Min, | Se. Dir. | Min. |Mic. Div. 530-9 || 33 | 502-6] 24 10 || 45 | 25 05-36 || 47 | 522-8 || 48 | 487-2} 25 4 | 10 | 25 17-44|| 12 | 541-5|| 13 | 616-0 | 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 I 23 | 616-6 9 | 529-3 3 | 507-5 15 03-20 || 17 530-0 |) 18 | 492-1 25 17-70 || 27 | 546-3 | 28 | 616-2 | 531-0 || 22 | 511-7 20 06-46 || 22 | 534-9) 23 | 490.4 30 18-10) 32 | 539-3|| 33 | 616-3 | 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 iP 4] 30 09-35 || 32 | 532.3]| 33 | 487-9 17 16-43 || 18 | 542-1) 19 | 601-8 | 547-1 3 | 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 | 527-5 544-5 || 13 | 614-0 *! 10 13-22 || 12 | 525.3]) 13 | 474-2 33 | 528-2) 34 | 601-7 | 544-5|| 18 | 611-2 20 15-61 || 22 | 533-9|| 23 | 458-4 35 13-66 | 36 | 530-8 |) 37 | 601-7 | 544-8 || 33 | 606-1 25 14.98 || 27 | 541-6] 28 | 447-6 47 | 546-2)) 48 | 605-5 | 546-1 38 | 604-3 30 14-11] 32 | 545-0] 33 | 438-1 49 | 545-6 || | 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 | 433-6] 25 6 0 | 25 05-05 2 | 543-5 3 | 609-0 538-1 3 | 581-6 50 13-63 | 52 | 530-1] 53 | 436-8 10 | 24 58-32}} 12 | 553-0]| 13 | 609-3 554-1 24 13 0 11-66 2 | 520-9 3 | 444-6 15 | 24 58-82)/ 17 | 551-8]) 18 | 609-4 | 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 2} 561-9|| 13 | 582-1 25 00-84 | 27 | 538-2 30 04-15 |) 32 | 538-7]| 33 | 614-0 I | 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 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 | 533-2), 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 | 480-5] 25 9 0 13-02 2 | 540-4] 3 | 593-3 | 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 ) 517-2) 53 | 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 1516.2) 8 | 556.4] 24 18 0 16-28) 2 | 527-9|| 3 | 471-3 5 15-04 7 | 537-6|| 8 | 449-4 18-6 || 13 | 557-2] 24 19 24 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 22 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 | 550-5] 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 54-4 || 43 | 518-0 10 18-03 | 12 | 522-6] 13 | 520-4 | 45 05-45 |) 47 | 524-3 |) 48 | 471.5 -4|/ 48 | 499-5 20 16-95 || 21 | 523-5 |) 22 | 521-1 50 07-40 || 52 | 523-3 || 53 | 472.9 “5 || 53 | 493-1] 24 22 0 15-05 2 | 521-0|| 3 | 531-1 55 08-21) 57 | 521-6] 58 | 471-9 0-2 || 58 | 488-3 25 13 0 06-97 2 | 528-3|/ 3 | 467-9 1-2) 3 | 480-9} 25 3 O | 25 15-72) 2 | 547-4 3 | 616-6 5 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 | 478.4 513-0 || 33 | 480-2 52 21-26 || 53 | 546-9) 54 | 608-7) 25 14 0 09-82 2 | 520-0|) 3 | 479-3 7 | 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 BiFinaR. k=0:000140. BaLance. k=0:000010. * See notes on the Aurora Borealis, after the Hatra Observations of Magnetometers. Feb. 252 115 12™, Bifilar vibrating 10 sc. div. Feb. 25411517. Bifilar vibrating 10 sc. div. = } < ee | . Feb. 254 3h 20™, Bifilar vibrating 15 sc. div. 100 EXTRA OBSERVATIONS OF MAGNETOMETERS, FeBpRUARY 25—Marcu 9, 1845. Gott. BIFILaRr BALANCE Gott: BIFILAR BALANncr Gore 1a ean DECLINATION. Gacsnctea! Gesnectade a DECLINATION. Gomracted. Garrectaa: Say DECLINATIO} 1 | an. | Min.| 2° ¢ || Min. | Se. Div. || Min. |Mic.Div.f a. on. [| Min.| 2 Min. | Sc. Div. || Min. |Mic’Div.] a. b. || Min.]| 2° # 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 O6moI 25 15 0} 14.94 || 2 | 522.7 3 | 483-6] 26 16 0 | 12-62} 2 | 534-5 3 | 522-3 35 05. 1} 10 | 16-19 | 12 | 519-4 || 13 | 487-5 31 11-98 || 32 | 532-0]| 33 | 533-5 46 06:5: even 15-67 | 17 | 520-6|| 18 | 490-0} 26 17 0 12.38 2 | 535-5 3 | 539-0 55 08: 25 16} 0} 14-51 2 | 528-8 3 | 500-5 28 15 0 08: O5usit) OM! 08-72) 2 | 524.8 3 | 527-57 27 2 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] 3 9 0 | 25 09-35) | 15 11-84} 17 | 521-8} 18 | 529-6] 27 3 0 | 17-81 2 | 535-0]| 3 | 567-2 5 04. 2519 | 0} 17.93] 2] 534-5] 3 | 509.7 | 10 06: 15 | 15-81 | 17 | 541-1]/ 18 | 502-0] 27 8 0 | 25 01-59} 2 | 549.2 3 | 575-1 15 09. 30 | 14-71 | 32 | 540-0 || 33 | 505-1 10 | 24 59-79|| 12 | 546.2}! 13 | 573-8 25 06: 25 20 | O 13-19] 2 | 537-9]) 3 | 507-0 15 | 24 59-70] 17 | 541-9]| 18 | 574-8 35 10. | 20 | 25 01-22|| 22 | 536-8]| 23 | 578-7 50 12: 26 1] O| 25 17-46 2 | 511-6] 3 | 563-8 30 | 24 58-76 || 32 | 530-7 || 33 | 580-5] 3 10 0 12. I 12 | 518-7] 13 | 573-0 35 56-10 || 37 | 533-1]) 38 | 578-5 }|————_|_ = | 15 14-46 17 | 524-5] 18 | 573-9 40 | 54-59 || 42 | 535-1] 43 | 578-5] 4 10 0 | 25 104 | 20 21-46 | 22 | 523-7) 23 | 577-1 45 52-82 || 47 | 534-5]/ 48 | 577-8 10 12.5 | 30 21-71] 32 | 529-0}! 33 | 581-0 50 50-90 || 52 | 537.2]) 53 | 575-2 15 12s 26) «2 || 0 22-89 2 | 523-0] 3 | 582-3 55 49-91 || 57 | 543-1] 58 | 574-4] 4 11 0 13 26) *3- 5.0 23-54|| 2 | 541-8] 3 | 591-3] 27 9 0 52-40 2) 544.3 3 | 574-4 10 11 | 10 23-48 | 12 | 522-9] 13 | 594-9 5 55-77 || 7 | 541-7|| 8 | 574-2 20 11 30 25-06 | 32 | 532-0] 33 | 616-2 10 | 24 57-37|| 12 | 539-9} 13 | 573-5] 4 12 0 11-2 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] 5 10 1 | 25 10 45 08-31 | 47 | 532-9] 48 | 651-8 55 04-42 || 56 | 523-2]) 57 | 565-7 10 12:1 50 06-97 | 52 | 532-4 || 53 | 660-9} 27 10 0 04-32 2 | 526-5 3 | 565-6 15 12. 55 03-47 | 57 | 543-7]! 58 | 665-2 10 06-12) 12 | 533-0]| 13 | 563-8] 5 11 0 12-2 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 | 668-8} 27 11 0 10-25 2 | 531-4 3 | 560-8] 7 10 0 | 25 09-4 | 25 13-49 | 27 | 541-8} 28 | 651-7] 27 12 0 08-95 2 | 534-5]| 3 | 550-3 10 10-4 | 30 14.06 || 32 | 542-4|| 33 | 644-2 33 13-52 || 34 | 529-7|| 35 | 551-3 15 10. 40 16-59 || 42 | 545-7|) 43 | 632-7] 27 13 0 14-13 2 | 529-0] 3 | 543-8 20 10: 50 17-67 | 52 | 540-2] 53 | 623-4] 27 14 0 19-48 || 2 | 524-1 3 | 502-4 25 11.7 26 5 0, 17-33 || 2 | 539.9]| 3 | 618-6 10 16-45 || 12 | 526-6|| 13 | 494.6 30 12+( 25 16-15 | 27 537-0 || 28 | 611-9 20 14-73 || 22 | 530-3] 23 | 495-0] 7 11*] 0 10-3 26 6 | 0 14.71 2) 536-1 3 | 603-5 30 13-52)| 32 | 529-9} 33 | 499.3 |j——|—_|—___ 27 15 0 11-41|| 2 | 534-8] 3 | 518-0] 9 14 0 | 25 14 26 10 0 | 25 11-64) 2 | 541-8 3 | 550-8 - 10 17.4 10 10-23 | 12 | 542-5) 13 | 548-8] 28 6 0 | 25 07-47 2 | 539-6|| 3 | 596-4 15 17-2 | 15 10-48 | 17 | 543-2|| 18 | 548-7 10 09-15 || 12 | 536-6]| 13 | 595-9 20 154 26 11 0 | 09-19] 2 | 533-3 3 | 554-3 30 12-11 || 32 | 526-6|| 33 | 591-3 25 134 40 07-99 | 41 | 538-1 || 42 | 554-9] 28 7 0° 12-95 || 2 | 542.4|| 3 | 582-0 30 12. 52 13-39 | 53 | 536-0 || 54 | 544.2 35 11 55 13-56 | 57 | 530-1) 58 | 541-6] 28 10 0 | 25 01-95 2 | 543-0|| 3 | 568-9 40 114 26 12] O| 12-89) 2 | 525.4 3 | 538-6 5 01-01 7 | 542-6|| 8 | 568-1 45 11. 10 10-70 | 12 | 522-1}! 13 | 538-9 15 02-89 || 17 | 534-1]) 18 | 566-4] 9 15 0 12.6 1 15 | 11-51 | 17 | 531-2) 18 | 539-2 20 02-23 || 22 | 529-3) 23 | 566-5 10 12.6 20 14.94] 22 | 535-6 || 23 | 536-0 25 01-92 || 27 | 527-3 15 15:8 25 | 16-92 || 27 | 536-5 || 28 | 530-3 30 02-37 || 32 | 526-5]| 33 | 567-5 20 18-4 | 30 | 17-36 || 32 | 538-7 | 33 | 523-1 35 03-58 || 37 | 529-2|| 38 | 567-7 25 20: | 35 | 17-83, 37 | 537-6) 38 | 517-1 40 05-70 | 30 20-7 | 40 17-29 || 42 | 536-9) 43 | 512-6] 28 11 || 0 09-40}} 2 | 531-2]| 3 | 566-5 35 21:1 | 51 13-86 | 52 | 533-1|) 53 | 509-9 10 10-88 || 12 | 533-7]) 13 | 565-9 40 20-2 2613) O 12-72)| 2 | 533-2) 3 | 512-8 | 31 11-55 || 32 | 529-9) 33 | 568-2 45 19-5 | 20 | 09-93 | 22 | 536-3 || 23 | 520-54 28 12 | 0 11-99 2 | 534.4 I 3 | 565-3 50 17-4 26 14 0 11-42) 2 | 529-4 | 3 | 533-1] 28 13 || O 10-94 2 | 529-4|| 3 | 561-8] 9 16 0 14-3 2615 | 0} 18-47] 2 | 530-2 3 | 506-8 10 14-10 || 12 | 526-6|| 13 | 559.7 10 11-7 | 6 16-93) 7 | 531-7) 8 | 499-8} 28 14 || 0| 05-60) 2 | 533-0]! 3 | 504-2 15 10-6 | 15 16:53) 17 | 538-2) 18 | 499.7 iio 05-05 7 | 530-8 8 | 503-0 20 09-6 | 20 | 17-39 | 22 | 536-2} 23 | 500.9 10 05-05 || 12 | 528-5 || 13 | 504.9 25 4 30 | 15:22) 32 533-6] 33 | 504-0 15 05-11 | 17 | 527-5 30 09-29 | Birivan. k=0-000140. BaLaNnce. k=0:000010. * See notes on the Aurora Borealis, after the Extra Observations of Magnetometers. Feb. 254 185 10™,. The magnets evidently disturbed throughout the night, but within small limits. March 44 10" 15™, Instruments slightly disturbed. Extra OBSERVATIONS OF MAGNETOMETERS, FesRUARY 28—Marcu 17, 1845. Gott. Mean Time. BALANCE Corrected. in. |Mic.Div.f 4. 512-4 516-6 522-0 525-2 527-2 571-7 562-4 559-2 559-3 555-5 554-7 559°5 562-5 550-3 551-7 552-1 550-0 547:1 546-4 540-3 545-8 548-5 549-4 546-1 571-5 570-3 571-4 572-3 571-7 571-5 560-4 552-6 549-7 545-7 540-3 537°3 535-5 535-4 536-8 537-7 540-2 539-9 539-4 534-7 529-4 523-8 519-7 517-6 514-9 513-6 516-3 518-4] 14 0 520-94 14 1 522.3 524-8} 14 2 DECLINATION. 25 09-44 09-35 08-99 25 18-63 20-92 20-50 19-37 25 09-69 10:09 11-98 25 07-57 09-15 09-69 09-96 BIFILAR Corrected. BALANCE Corrected. DECLINATION. BIFILAR Corrected. 101 BALANCE Corrected. Min. | Se. Div. 37 | 534-9 42 | 534-5 534-8 | 527-6 532-8 530-9 530-0 538-9 540-5 539-3 536-2 537-6 Min. 38 43 Mic. Diy. 527-7 25 04-55 00-87 00-80 02-22 09-93 07-04 06-86 02:08 04-07 05-58 07-17 10-67 08-65 07-17 07-04 06-66 10:47 11-49 10-16 09-53 11-48 13-76 16-68 15-41 14-92 10-97 05-02 02-79 03-70 06-32 07:78 10-81 12:58 12-53 12-04 25 04-71 . | Se. Div. 528-8 536-9 | 538-7 540-1 534-0 532-3 532-4 542-8 546-0 540-8 537-9 539-8 537-2 » | Mie. Div, 604.3 | 601-0 | 600-7 , 600-0 593-1 | 581-5 | 581-7 | 556-7 555-0 553-6 552-5 544-5 | 543-1 541-0 | 539-2 540-1 | §31-6 537-5 540-4 542-9 542-0 529-6 527-8 522-4 527-7 577-9 | 579-2 582-7 588-3 592-0 592-8 588-2 586-7 583-1 482-0 477-4 477-6 479-5 486-4 488-2 487-7 485-2 487-5 503-3 507-1 515-3 518-9 522-0 523-0 522-8 517-6 513-1 506-6 508-5 15 30 3 | 551-7 547-1 541-1 Brrinar. k=0-000140. BALANCE. k=0:000010. (1341 and afterwards. Declination reading higher than its mean value ; the magnet was watched, but no change of importance took place. | 61114. Instruments slightly disturbed. MAG. AND MET. OBS. 1845. 102 Extra OBSERVATIONS OF MAGNETOMETERS, Marcu 17—24, 1845. Gott. BIriLar BALANCE Gott. BIFILAR BALANCE Gott. Mean DECLINATION. Gosrectede Gocreccont Mean DECLINATION. Gontetted: Gosnectads Mean DECLINATIO Time. Time. Time, ’ d. h. || Min. 2 U Min. | Se. Div. || Min. |Mic. Div. a. h. || Min. 4 “ Min. | Se. Div. || Min. |Mic. Div. da. h. || Min. ° 17 10 0 | 25 13-36 2 | 539-0 3 | 545-1] 21 0 | 25 09-26 532-2 3 | 565-6] 23 15 0 | 25 0: Hiell .\\6 07-13) 2 | 543-7 3 | 539-4 10 15-72 || 12 | 553-2) 13 | 536-3 5 | 10 08-21 || 12 | 549-6]| 13 | 535-2 15 15-67 || 17 | 547-0 || 18 | 537-1 15 15 09-19 || 17 | 552-9) 18 | 532-9 20 11-77 || 22 | 561-5 || 23 | 530-2} 23 16 0 20 10-27 || 22 | 552-1} 23 | 531-1 25 18-38 || 28 | 555-7] 29 | 522-1 10 |) 35 09-79 || 36 | 545-5] 37 | 527-2 30 22-27 || 32 | 536-0 || 33 | 521-0] 1) 17 12 0 11-79 2 | 541-3 3 | 521-9 35 18-20 || 37 | 528-5) 38 | 522-9 20 — —|—— —| —_ 40 09-56 || 42 | 541-2]) 43 | 516-8 OG 130 a 0 | 25 13-39 2 | 543-0 3 | 572-7 45 07-54 || 47 | 549-4) 48 | 514-0 30 30 15-11) 32 | 542-9} 33 | 571-3 50 09-69 || 42 | 549-7 || "53 | 511-9 35 18 8 0 14:06 2 | 538-6 3 | 574.3 55 11-77 || 57 | 545-2) 58 | 508-3 40 18 9 0 | 11-71]| 2 | 542-7 3 | 570-7] 21 10 0 13-96 2 | 547-8 3 | 505-9 51 18 10 0 03-37 || 2 | 558-2 3 | 534-4 15 11-48} 17 | 531-5) 18 | 506-54 23 17 0 5 05-15 7 | 555-6 8 | 532-4 25 | 07-57 || 27 | 537-8 || 28 | 498-4 10 *| 10 06-70 || 12 | 548-9] 13 | 533-2 30 | 07-67 || 32 | 534-7 || 33 | 493-0 20 20 05-53 || 22 | 538-6] 23 | 531-4] 21 11 0) 08-36 2 | 530.7 3 | 482-5 36 25 02:96 || 27 | 546-7) 28 | 528.3 15 | 07-34) 17 | 528-2) 18 | 484-4 45 || 30 03-90 || 32 | 548-3) 33 | 526-4 45 | 07-40 || 46 | 532-3 || 47 | 496-1] 23 18 0 35 04-64 || 37 | 548-3) 38 | 523-4] 21 12 0 10-78 2 | 531-6 3 | 495-9 10 45 06-04 || 47 | 540-4) 48 | 521-2} 21 13 0 12-29 2 | 537-0 3 | 500-3 20 || 50 06-06 || 52 | 539-5]| 53 | 521-2 10 15-31 || 12 | 536-6|} 13 | 498-0] 23 19 0 18 11 || 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 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 | 28 [|__| | ——|———_] 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 45 04-24 || 47 | 527-6 48 | 606-1 35 09-19 || 37 | 531-3|| 38 | 484-4 35 | 24 19) 9 7 0 03-41 2 | 530-0 3 | 609-2] 21 17 0 06-90 2 | 536-4 3 | 492-5 40 | 25 19 8 0 09-79 2 | 526-5 3 | 607-8 20 06-59 || 22 | 542-5] 23 | 495-9 45 19 9 0 16-28 2 | 528-1 3 | 542-8] 21 18 0 07-27 2 | 541-4 3 | 506-4 50 a) 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 * 15 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 2 | 527-7 3 | 570-1 19 07-60 || 22 | 513-8 || 23 | 500-0] 24 8 0 —||——— — al —_|—-——— 24 | 507-3 10 20 15 0 | 25 18-37]| 2 | 532-2 3 | 5383 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 | 421-9} 24 10 0 i 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 Ales 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 55 15-01 || 57 | 540-5 || 58 | 469-3 20 16-21 || 22 | 521-9]| 23 | 373-6) 24 12 0 20 16 0 14-68 2 | 536-9 3 | 471-2 25 | 14-77 || 27 | 522-6 || 28 | 373-5} 7 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 20/17, 0 09-24 2 | 533-3 3 | 517-5 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 06-81 || 52 | 528-3] 53 | 387-2 30 20 18 0 10-67 2 | 532-8 3 | 539-2 55 05-52 || 57 | 529-7 || 58 | 397-0 35 a Brrizar. k—0-000140. BALANCE. k=0-:000010. * See notes on the Aurora Borealis, after the Hxtra Observations of Magnetometers. Extra OBSERVATIONS OF MAGNETOMETERS, MArcu 23—26, 1845. 103 Gott. Pe IRrEa Batance | “Ott- BIFILAR BALANCE ‘ ae ee: mest EECLINARION. Corrected. Corrected. And DECLINATION. | Corrected. Corrected. Se. Div. || Min. |Mic.Div.f 4. bh. Min C 4, Min. | Se. Diy. || Min. |Mic.Div.J d. h. Min. hd ke | Min. | Se. Diy. | Min. | Mic. Div, 532-2|| 3 | 407-0] 24 12 | 40 | 25 08-53|| 42 | 538-3] 43 | 449-6] 25 13 | 30 | 25 08-45 || 32 536-5) 33 | 508.3 531-8|| 8 | 419-3 45 05-83 || 47 | 541-2] 48 | 449-0 40 09-12] 42 | 532.4 |) 18 | 433-3 50 04-68 || 52 | 546-0) 53 | 446-1 50 07-29) 52 | 532-4|| 53 | 508.5 3 | 461-9 55 05-18 || 57 | 546-5] 58 | 442-0] 25 14 || 0 04-86 || 2 | 532-4|| 3 | 508-1 13 | 465-9] 24 13 | 0 05-96 || 2 | 543-5] 3 | 439-8 10 03-30 || 12 | 533-7 || 13 | 506-9 18 | 466-3 15 09-87 || 17 | 525-5|| 18 | 439-8 | 20 04-48 || 22 | 530-6 || 23 | 506-6 26 08-73 || 27 | 510-5] 28 | 438-0 30 06-77 || 32 | 528-8 28 | 459-7 29 | 506-5 25 15 || 0 11-91|| 2 | 527-1|| 3 | 504-6 33 | 456-7 30 07-62 || 31 | 501-9 10 13-66 || 12 | 528.9 | 13 | 504-7 38 | 456-3 32 | 499.3| 33 | 437-1 20 13.47 || 22 | 534.7|| 23 | 504.6 43 | 453-9 34 | 496-3 25 16 || 0 08-29|) 2 | 531-2|| 3 | 517-6 53 | 457-1 35 | 25 02-64|| 36 | 496-8] 37 | 435-9 30 07-87 || 32 | 530-4] 33 | 526.1 3 | 461-8 38 | 499-3 25 AL 0 10-58 || 2 | 532-0] 3 | 534-9 13 | 466-2 40 | 24 56-94|| 41 | 502-3] 42 | 433-0 23 | 463.3 44 | 514.3 26 5 || 0 | 25 12:67|| 2 | 542-1]) 3 | 594.4 38 | 465-4 45 52.94 || 47 | 516-6|| 48 | 431-6 10 07-47 || 12 | 545-1]| 13 | 599-1 48 | 468-8 50 54-16|| 52 | 516-5|| 53 | 430-5 15 06-84) 17 | 553-0|| 18 | 602-9 3 | 475-6 55 54-35 || 57 | 511-0) 58 | 427-6 20 08-16 || 22 | 554.5 || 23 | 606-3 13 | 480-8] 24 14 | 0 53-72|| 2 | 512.6|| 3 | 430-0 40 10-70 || 41 | 542-2|| 42 | 620-4 23 | 489.8 6 53-20|| 7 | 508-7] 8 | 427-2196 6] O 08-11|| 2 | 536-7|| 3 | 626-0 3 | 521-8 10 52-60 || 12 | 509.0|| 13.| 426.7 10 01-72|] 12 | 543-2|) 13 | 627-7 20 52-60|| 22 | 504-8] 33 | 429.6 15 00-40 || 17 | 553-4 || 18 | 625-7 3 | 644-8 25 52-84 || 26 | 506-6 || 27 | 431-1 20 02-69 | 22 | 556.0|| 23 | 624-9 13 | 679-2 | 35 54-08 || 37 | 503-3] 38 | 431-2 25 06-76 || 27 | 558-2]) 28 | 623-0 18 | 699-8 45 | 24 56-75|| 47 | 507-5] 48 | 429.6 30 08-48 || 32 | 551-5|| 33 | 620-9 23 | 713-7 56 | 25 00-33 || 57 | 510-2|| 58 | 425-8] 26 7 || 0 | 25 05-06|| 2 | 544.9] 3 | 618-5 28 | 692.3] 24 15 | 0 04-14|) 2} 505-8|) 3 | 418-2 50 | 24 58-15|) 52 | 543-1] 53 | 560-4 33 | 668-0 5 07-32|) 7 | 503-7]| 8 | 407-5 55 | 24 59-01]] 57 | 549.4|| 58 | 554-1 38 | 654-1 */ 10 08-08 || 12 | 508-7|| 13 | 396-1] 26 8 | 0 | 25 04-19) 2 | 553.2] 3 | 549-8 43 | 653-5 15 08-68 || 17 | 511-7|| 18 | 390-0 5 08-93 || 7 | 545-8] 8 | 548-7 48 | 648- 20 09:39 || 22 | 514-3 || 23 | 386.2 10 13-52|| 12 | 536.2 53 | 638-8 30 11-10 || 32 | 515-7] 33 | 379-9 15 15-94|| 17 | 520-7] 18 | 552-9 58 | 632-7 45 07-87 || 46 | 525-1) 47 | 373-4 20 13-66 || 22 | 518.0] 23 | 554-7 3 | 631-3] 24 16 | 0 | 25 00-71] 2 | 533-.8|| 3 | 352-7 25 09-12|] 27 | 529-9 13 | 636-9 6 | 24 59-36|| 7 | 544-2|| 8 | 358-8 30 10-41 |] 32 | 531.4]] 33 | 557-5 18 | 638-1 11 | 25 01-41|| 12 | 543-5 || 13 | 360-6 40 10-51 || 42 | 535.3] 43 | 563-0 23 | 636-0 15 02-84|| 17 | 536-6 || 18 | 360-8 50 10-95 || 52 | 534-2|) 53 | 567-7 48 | 615-9 25 04-73 || 27 | 524-7|| 28 | 358-8] 26 9 || 0 12-02|| 2 | 534.9] 3 | 568-5 53 | 612-5 30 03-30 || 32 | 527-2] 33 | 362-6 45 11-88] 47 | 540-4]) 48 | 554-0 58 | 611-5 47 | 513-5] 48 | 392-4] 26 10 | 0 16-93 || 2 | 527-9|| 3 | 539-2 3 | 611-2] 24 17] 0 05-11]/ 2 | 511-3]| 3 | 421-2 10 15-58 || 12 | 543-1] 13 | 511-5 13 | 606-4 25 09-39 || 27 | 527-2|) 28 | 457-2 20 16:77 || 22 | 530-7 || 23 | 497-5 23 | 598.0 45 09-22 |) 47 | 530-5 || 48 | 471-9 | 30 11-24] 32 | 527-0]] 33 | 492-0 33 | 594-5] 24 18 | 0 10-03 || 2 | 532-2] 3 | 483-7 35 06-90 || 37 | 536-0] 38 | 492-1 48 | 600-8] 24 19 | 0 09:98 || 2 | 529-4]| 3 | 521-9 40 05-27 || 42 | 541-0]) 43 | 492.3 58 | 602-6 25 11-57 || 27 | 523-1] 28 | 533-7 45 05-36) 47 | 542-7] 48 | 490-2 3 | 602-6] 24 20] 0 10-53] 2 | 517-2|) 3 | 543-9 50 05-94 || 52 | 544-3] 53 | 491-0 34 | 591-7 26 11 || 0 08-82|| 2 | 540-7]) 3 | 496-8 8 eee) 25 5 | 0| 25 15-12] 2| 533.1] 3 | 601-9 il elegy an a eee De =e 36 04-51|) 37 | 543-0] 38 | 621-6 3 Seto elag | age 23 | 557-1 35 05-38 || 37 | 530-8 || 38 | 499.9 40 06-19) 42 | 545-4/| 43 | 622-0 28 | 559-0 5 g 45 06-50|| 47 | 536-1|| 48 | 504.4 33 | 561-8 BAS ARE ee caleeee's |) aon) Gabe 55 | 08-38|| 57 | 540-7|| 58 | 503-4 50 07-79 || 52 | 547-4]| 53 | 618-7 3 | 544-2] .. 26 12 || 0 09:06 || 2 | 544-1]) 3 | 502-0 25 6] 0 10-30|| 2| 542-1] 3 | 615-6 9 | 524.7 5 bee 10 09-35 || 12 | 542-3] 13 | 501-0 13 | 506-8 Be Ae pegs | 2a) Ones 20 | 09-12|| 22 | 540.8) 23 | 501-2 25 ane 13-66]| 2 | 541-5] 3 | 583-5 = z 18 | 482.4 30 09-82 || 32 | 539-8] 33 | 504-1 23 | 466.4 26 13 || 0 09-84 || 2 | 535-1]) 3 | 499-3 28 | 458.5] 25 13 | 0| 25 04-89|} 2 | 550.9|) 3 | 498-9 *| 10 08-31 || 12 | 530-3 || 13 | 501-6 33 | 452-8 10 04-59 || 12 | 548-1] 13 | 499-2 30 10-09 || 32 | 527-2|| 33 | 510-4 38 | 451-1 20 06-79 || 22 | 542-3/| 23 | 504-51 26 14 || 0 11-64|| 2 | 516-3|| 3 | 507-4 Birivar. k=0:000140. Batance. k=0:000010. * See notes on the Aurora Borealis, a/ter the Extra Observations of Magnetometers. 104 EXTRA OBSERVATIONS OF MAGNETOMETERS, Marcu 25—Apriu 13, 1845. ce ; Birimar BALANCE Fras 7 BIFILAR BALANCE Gott. 4 met DECLINATION. Corrected. Corrected. seu OLIN TROND Corrected. Corrected. Mean DECLINATI Time. Time Time. Raed ts Cri beg Min. | Sc. Div. || Min. | Mic.Diy.J d. bh. jj Min.| ° ” Min. | Sc. Diy. |} Min. |Mic.Div.J 4d. h. |] Min.}] ° * 26 14*/ 10 | 25 10-87] 12 | 516-8] 13 | 502-5) 28 9 13} 25 08-68|| 3 | 540-4] 4 | 551-4] 13 13 | 30 13-84 | 32 | 524-5|) 33 | 488-8 10 05-82) 12 | 540-8|) 13 | 552-4 35 16-41 | 37 | 521-2)) 38 | 483-5 15 05-35 || 17 | 544-2) 18 | 552-3 | 40 18-05 | 42 | 519-0|| 43 | 474-6 31 | 25 04-44|| 32 | 541-0] 33 | 552-1 | 45 20-05 | 47 | 517-0] 48 | 468-1 57 | 24 57-51 | 50 21-59 || 52 | 513-8) 53 | 461-3] 28 10 | O 56-27|| 2| 541-6] 3 | 547-5 55 22-20 | 57 | 510-5 |) 58 | 453-3 5 54.28|| 7 | 543-1] 8 | 546-5] © 40 41: 2615 || 0 20-87|| 2 | 513-0]) 3 | 447-7 10 54-55 | 12 | 543-4] 13 | 548-1 41 4 | 10 18-87 || 12 | 518-2]| 13 | 440-5 15 55-78 || 17 | 540-9] 18 | 548-0 | 15 19-28 || 17 | 520-3 || 18 | 441-2 20 57-02 || 22 | 538-8] - 45 45.4 | 20 18-67 || 22 | 526-9|| 23 | 445-8 30 | 24 57-68] 32 | 536-2|| 33 | 546-9 46 47.0 | 25 18-48 | 27 | 531-4] 28 | 450-0 40 | 25 00-80] 42 | 529-1]) 43 | 548-8 | 30 16-95 | 32 | 534-3 || 33 | 453-7 50 04-12 || 52 | 521-4] 53 | 549-8 50 50-4 | 45 12-82 || 47 | 535-5 |) 48 | 465-8] 28 11 0 04-91|| 2] 525-6|| 3 | 545.4 51 50+ 26 16 | 0 09-22|| 2 | 537-5]) 3 | 477-8 10 06-97 || 12 | 528-2] 13 | 543-3 | 10 08-25 | 12 | 536-5] 13 | 481-8 20 08-14 || 22 | 527-3 || 23 | 542-5 55 50 | 30 04-44 || 32 | 538-1]) 33 | 490-4 30 07-81 || 32 | 532-0|| 33 | 542-1 56 49-5 | 35 04-44 | 45 11-51|| 47 | 531-9|) 48 | 541-3 2617) 0 08-01 2 | 530-0] 3 | 513-0] 28 12 || 0 10-13 || 2 | 533-7] 3 | 539-77 13 14 || O | 24 59% 15 07-22|| 17 | 529-1 || 18 | 515-0 7 --————|_|—-_+ - *| 1 | 25 00 | 55 14-77 || 57 | 526-4]| 58 | 531-8] 29 10.|| 0 | 25 05-69] 2) 539-3] 3 | 541-1 5 | 24 57-4 2618) 0 14:92 || 2 | 524-1} 3 | 532-9 10 03-37 || 12 | 536-7) 13 | 538-4 10 56 | 10 13-59 | 12 | 522-8|| 13 | 565-1 20 00-47 || 22 | 541-5] 23 | 532-7 26 19 || O|-* 11-62) 2 | 536-3] 3 | 534-3 30 00-74 || 32 | 538-0]) 33 | 529-9 15 524 40 01-16 || 42 | 537-5 |) 43 | 523-5 16 51-7 27 5 || 0} 25 15-18]| 2 | 518-8|| 3 | 600-4 50 03-04|| 52 | 533-2]) 53 | 520-2 20 48: 10 10-27 || 12 | 532-6}| 13 | 603-17 29 11 0 03-90|| 2 | 530-7], 3 | 518-7 21 50: 21 11-41 || 22 | 538-4) 23 | 609-1 * 15 08-82|| 17 | 531-2) 18 | 506-9 30 10-77 || 32 | 546-1} 33 | 602-2 25 08-52 || 27 | 529-8]| 28 | 501-0 25 48 40 13-00 || 42 | 551-3]} 43 | 597-0 35 06-39 || 37 | 537-6) 38 | 504-3 50 14-03 | 52 | 548-9|] 53 | 597-6 50 06-50 || 52 | 536-5 || 53 | 505-3 30 39-7 27°-6 |) 0 13-05 || 2 | 539-6|| 3 | 605-5] 29 12} 0 07-85 || 2 | 533-7|| 3 | 506-8 31 37. O77 0 12-58! 2 | 542-3]| 3 | 611-5 - — | 42 09-53 || 43 | 523-6|| 44 | 616-4] 3 9 || O | 25 06-59]! 2 | 539-0] 3 | 570-2 35 32 | 45 05-79 | 47 | 529-4 || 48 | 613-9 15 10-20 || 17 | 529-8) 18 | 571-5 36 314 50 04-71] 52 | 538-9|| 53 | 610-7 25 07-51 || 27 | 537-1 |) 28 | 571-9 55 07-05 || 57 | 540-9} 58 | 607-2 30 08-31 || 32 | 537-9] 33 | 571-5 40 31-6 27 8 0 06-03 2 | 540-3|} 3 | 603-5 45 08-08 || 47 | 536-0] 48 | 571-3 41 29-4 tS 04-98 || 7 | 536-9|| 8 | 603-7] 3 10] 0 06-43 || 2] 538-3]| 3 | 568-4 | 10 | 25 00-57 | 12 | 536-6] 13 | 599-0 10 06-03 || 12 | 538-4) 13 | 567-2 45 24. 15 | 24 58-47] 17 | 539-2] 18 | 596-7] 3 11 0 09-93 || 2 | 537-7) 3 | 557-0 46 23-5 20 | 24 55-53 || 22 | 555-3] 23 | 584-5 ——— —— = 24 | 561-4 12 0] O| 25 14-35] 2] 543-2] 3 | 555.3 50 22:3 25 | 24 59-36 10 15-74|| 12 | 544-6 || 13 | 553-8 51 21 | 26 | 25 01-75] 27 | 569-2} 28 | 574.27 12 1 0 18-45 |) 2] 529-0] 3 | 548-3 : | 29 | 574-1 ——|| —_}——_——_|—_ ——— 55 22. | 30 03-57 || 32 | 577-2|| 33 | 560-49 13 11 || 25 | 24 53-88] 26 | 541-6]| 27 | 424-7 56 22 | 35 | 09-29 | 37 | 569-7|| 38 | 552-6 *! 30 48-56 | 31 | 545-8 || 32 | 427-5 | 40 14-33 || 42 | 547-3]| 43 | 547-3 45 43-52 || 47 | 579-6) 48 | 423-8] 13 15 || O 13:3 44 | 539-0 | 51 | 24 45-74] 52 | 588-3] 53 | 432.8 5 32 | 45 13-37 || 47 | 534-0|| 48 | 542-49 13 12 | O }| 25 01-54] 2 | 563-6] 3 | 404-5 | 50 | 10-50 | 52 | 534-4|| 53 | 536-81 13 13 || 3 | 24 52-40] 4] 453-0] 5 | 180-2 | 56 09-32] 57 | 531-7|| 58 | 532-0 */ 10 43-42 || 12 | 482-5] 13 | 154-8 10 43. 27 9) 0 09-29 2) 527-4) 3 | 531-1 15 34-74 11 42 10 02-73 | 12 | 528-0|| 13 | 532-0 16 33-29 || 17 | 464-7 || 18 | 110-2 ‘ 115 00-74 || 17 | 538-0] 18 | 530-5 18 | 438-9 15 54: | 20 03-37 19 32-55 16 | 24 57-1 || 47 | 08-05 || 48 | 535-0|| 49 | 541-8 || 20 32.86 || 22 | 396-4|| 23 | 60-8 20 | 25 04 27 10 || 0| 08-79 || 2 | 533-3|| 3 | 546-6 | 24 | 371-9 | 10 } 08-05 | 12 | 533-2]| 13 | 548-7 25 29-56 27-11 || 0 09-67 || 2 | 530-8|| 3 | 537-1 26 26-45 || 27 | 346-7] 28 | 66-6 25 00. Biritar. k—0-000140. BaALance. k=0:000010, * See notes on the Aurora Borealis after the Extra Observations of Maguetometers. Extra OBSERVATIONS OF MAGNETOMETERS, APRIL 13—18, 1845. 105 Gott. BIFILAR BALANCE Gott. BIFILAR || BaLANcr Pes. Mean DECLINATION. Corrected. Corrected. Mean DECLINATION. Corrected. ( roreeered, Time, Time. Min. |Mic. Div.) d. oh. || Min} ° = ¢ Min. | Sc. Diy. |} Min. | Mic. Div] ad. oh. || Min.}| ° Min. | Sc. Div. |] Min. } Mie. Div. 13 15 29 | 591-3 14 6 || 20 |,25 11-68] 22 | 549-3]; 23 | 621-1 33 83-0 *!| 30 | 24 53-17]) 32 | 559-3 || 33 | 267-6 30 09-79 || 32 | 550-0} 33 | 622-7 34 | 539-0 45 07:81 | 47 | 535-8 || 48 | 624-0 35 48-36 || 37 | 519-9] 38 | 251-9 55 04:12) 57 | 541-0]) 58 | 630-4 38 | 155-7 39 | 525-0 4% 0 | 25 00-57|) 2 | 543-8|| 3 | 633-7 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 43 | 213-6 44 | 516-4 25 | 25 03-48} 27 | 556-0) 28 | 612-5 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 48 | 224-5 54 | 515-4 35 10-06 || 37 | 533-4|| 38 | 576-9 55 45-07 || 57 | 521-5] 58 | 317-4] 14 9 0 11-64 || 2 | 531-7]| 3 | 570-8 59 | 525-2 14 11 0 12-36] 2 | 530-3] 3 | 512-1 53 | 224-84 13 16 0 47.19|| 2 | 528-0] 3 | 288-6 30 12-78 || 32 | 529-0|| 33 | 501-7 * 5 49-57 || 7 | 526-1 8 | 369-5] 14 12 0 16-43 || 2 | 531-1 3 | 470-5 10 50-18 | 12 | 519-8]) 13 | 392-7 11 15-56 || 12 | 531-2|| 13 | 469-8 15 | 24 57-24) 17 | 517-6] 18 | 403-9 20 14-40 || 22 | 530-2); 23 | 471-0 20 | 25 00-20 | 22 | 519-6]) 23 | 412-6 30 12-38 || 32 | 530-9} 33 | 475-1 30 02-32 || 32 | 518-2]) 33 | 434-2] 14 13 0 12-55 2 | 535-2)) 3 | 483-5 40 02-66 || 42 | 526-1 ]) 43 | 443-0 —|——|——— : 2 45 08-36 || 47 | 514-9] 48 | 441-91 15 9 0 | 25 02-99|| 2 | 549-9|| 3 | 540-2 50 07-78 || 52 | 509-2]| 53 | 441-4 25» 06-66 || 27 | 543-6|| 28 | 535-3 13 17 0 | 25 06-46) 2 | 524-5] 3 | 448-27 15 10 0 07-57 || 2 | 539-9|| 3 | 532-9 10 | 24 58-42] 12 | 525-3]! 13 | 455-0 =|} | —_-——+*- | 14 | 530-8 18 8 0 | 25 08-32)| 2] 543-9] 3 | 593-6 15 | 25 00-80] 17 | 525-3] 18 | 457-7 16 04-68 || 17 | 536-3]| 18 | 608-0 22 | 534-2] 23 | 459-1 20 03-84 || 22 | 535-6 || 23 | 611-2 25 | 24 59-01) 27 | 538-8 || 28 | 464-4 25 05-15 || 27 | 540-4|| 28 | 610-9 35 | 25 04-10) 3 535-3 || 38 | 476-3 30 04-69 || 32 | 548-9 || 33 | 604-1 45 02-96 || 47 | 540-1 ]) 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 13 18 0 02-99] 2 | 537-0] 3 | 499-9 45 08-95 || 47 | 539-1 || 48 | 579-6 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) 2 | 531-7|| 3 | 574-2 13 19 0 07-38 || 2 | 531-0) 3 | 518-5 5 01-93 || 7 | 532-2]) 8 | 570-7 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 10 09-35 | 12 | 532-0] 13 | 514-6 20 | 25 00-10]) 22 | 537-4 |) 23 | 559-0 20 08-31 || 22 | 533-5 |) 23 | 519-4 35 01-68 || 37 | 531-0)) 38 | 549-6 13 21 0 06-59) 2 | 522-7|) 3 | 523-7 40 02-35 || 42 | 529-5 |) 43 | 549.6 45 02-25 || 47 | 529-2|| 48 | 549-4 14 °2 0 | 25 20-69|| 2 | 517-6] 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 14 3 0 20-50 || 2 | 533-1 3 | 569-1 15 03-90 || 17 | 530-8|| 18 | 550-3 14 4 0 14-50|| 2 | 538-6|} 3 | 650-6} 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 15 03-20 || 17 | 571-5] 18 | 669-8 10 18-38 || 12 | 542-7} 13 | 527-8 20 05-79 || 22 | 581-2] 23 | 667-7 15 15-98 || 17 | 546-5 || 18 | 511-7 25 10-83 || 27 | 569-4 | 28 | 665-6 21 12-29 || 22 | 550-4 || 23 | 497-6 30 15-71 || 32 | 546-6|| 33 | 654-7 25 10-11 || 27 | 552-1 || 28 | 489-8 35 17-02 || 37 | 544-7] 38 | 643-2 30 08-79 || 32 | 553-0] 33 | 482-5 40 17-71 || 42 | 539-6 || 43 | 633-5 35 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 50 17-80 || 52 | 538-7 || 53 | 617-4 45 08-12 || 47 | 538-6) 48 | 476-1 14 5 0 16-87 || 2 | 541-8] 3 | 603-5 50 07-15 || 52 | 536-4|| 53 | 475-6 10 16-80 | 12 | 538-2|) 13 | 600-4) 18 14 0 07-89 || 2 | 536-2|| 3 | 477-7 40 18-23 || 42 | 562-8) 43 | 587-3 30 03-16 || 32 | 535-5|) 33 | 476-0 50 18-20 || 52 | 556-2|| 53 | 598-6) 18 15 0 00-94 || 2) 525-1 3 | 482-0 55 14-91 || 57 | 546-1) 58 | 610-0 10 00-91 || 12 | 524-0) 13 | 487-7 14 6 0 11-59] 2 | 543-5] 3 | 619-8 20 01-61 || 22 | 522-4|) 23 | 492-9 10 11-30 || 12 | 555-9] 13 | 618-6 30 02-05 || 32 | 524-1 || 33 | 496-8 Birivar. k=0:000140. BALANCE. k—=0-000010. F See notes on the Aurora Borealis, after the Extra Observations of Magnetometers. ril 134 144 57m 30s, The horizontal component diminished rapidly, and the bifilar scale went out of the field of the reading telescope. il 134154 0™, The arms of the bifilar torsion circle were turned through 1° 12/; they were turned at 15» 46™ to within 9/-5 of their nal position, and at 21" 30™ to their original position: all the observations made between 15 0™ and 21" 30™ have been corrected to the lormal reading of the torsion circle. See Introduction, p. xxxii. AND MET, ogs. 1845. 2D BALANCE Corrected. Min. | Mic. Div. 33 | 459.4 48 d. h. 30 14 106 EXTRA OBSERVATIONS OF MAGNETOMETERS, APRIL 18—May 18, 1845. Gott. Biriuar BALANCE Gott. BIFILAR aan DECLINATION. Corrected. Corrected. Mean DECLINATION. Corrected. a oh. || Min.| ° « Min. | Se. Div. || Min. | Mic. Div. da. oh. || Min.| 2° ¢ Min. | Se. Diy. 18 16 0 | 25 08-41 2 | 521-3 3 | 500-7} 27 14 || 30 | 24 59-19}) 32 | 536-8 18 17 0 08-05 || 2 | 536-5 3 | 485-3 45 | 25 01-07 || 47 | 543-5 30 05-32 2 | 534-3 || 33 27 15 0 | 25 01-01 2 | 535-4 18 18 0 05-60 |} 2 | 534-1 3 30 | 25 02-55 || 32 | 527-2 } 27 16 0 | 24 57-53 2 | 529-0 19 5 | 0} 25 16.28 2 | 570-1 3 10 | 25 02-42] 12 | 526-8 7 | 573-4|| 8 20 00-58 || 22 | 523-1 22 | 572-4 || 23 30 01-88 || 32 | 508-9 | 25 15-54 || 27 | 554-2|| 28 35 03-54 || 387 | 495-5 | 30 15-51 || 32 | 547-1 || 33 40 03-87 || 42 | 484-4 | 45 15-32 || 47 | 540-7 || 48 45 17-76 || 47 | 461-5 19 6]| 0 12-72} 2] 547-6]) 3 50 23-41 || 52 | 509-4 | 30 09-42 || 32 | 551-0 ]| 33 55 25-09 || 57 | 507-2 19 7 0 11-51 2] 549-0] 3 27°17 0 21-32}| 2 | 487-6 19. 9 0 Ol-11 2 | 538-4|| 3 5 19-24 || 7 | 504-5 10 09-35 || 12 | 524-5 || 13 10 16-21 || 12 | 500-5 15 08-97 || 17 | 528-7 || 18 15 13-39 || 17 | 502-0 | 25 09-76 || 27 | 534-0] 28 20 13-16 |] 22 | 517-4 30 10-60 || 32 | 534-0]] 33 25 10-40 || 27 | 522-2 19 10 0 07-82|| 2 | 534-5] 3 30 09-37 || 32 | 524-6 - = 35 07-34 || 37 | 529-7 20°13 || O | 25 15-17] 2 | 519-6 3 40 08-92 || 42 | 521-6 I 5 13-70|| 7 | 523-7] 8 45 07-02 || 47 | 523-3 10 }* 12-38) 12 | 522-71)| 13 50 06-61 || 52 | 524-6 15 09-79 || 17 | 529-6 || 18 55 05-06 || 57 | 526-3 25 07-54 || 27 | 536-4 || 28 27 18 0) 05:49] 2 | 524-8 30 07-13 || 32 | 537-0]| 33 10 03-87 || 12 | 525-7 52 05-29 || 53 | 533-6]| 54 35 03-88 || 37 | 526-2 20 14 0 04-32]! 2 | 530-5 3 27:19 0 02-50|| 2 | 523-6 35 05-86 || 37 | 527-9 || 38 27 20 0 04-19} 2 | 528-1 20 15 0 08-75|| 2 | 530-5], 3 10 04-51 || 12 | 522-2 20 18 0 13-54 2 | 524-4 3 27 21 0 04-79 2 | 520.4 16 14-13 || 17 | 529.3 || 18 27 22 0 09-93 2 | 510-7 20 19 8 08-05 || 9 | 530-2} 10 10 12.62 || 12 | 509-5 — 27 23 0 13-88 || 2 | 509-1 25 2 0 | 25 24-12]| 2] 524-8] 3 —- 42 23.54]| 43 | 532-8 |) 44 30 11 5 | 25 03-54]| 6 | 552-8 25 3 0 24-80 2) 536-6], 3 15 07-31 || 17 | 544-6 30 10-09 || 32 | 537-2 25 11 0 | 25 10-16 2 |'553-1 3 30 12 0 07-76 || 2 | 538-1 15 11-77 || 17 | 548-8 || 18 25 01-81) 27 | 534-8 35 11-07 || 37 | 543-5]| 38 30° 00-80 || 32 | 534-6 25 12 0 09-62 || 2:| 536-4 3 40 01-01 || 42 | 527-9 — ———||—— — 50 | 25 00-10)| 52 | 522-4 27 13 0 | 24 59-73]| 2 | 529-5 3 30 13 0 | 24 57-35], 2 | 518-1 10 | 25 03-16}| 12 | 534-7 ]| 13 5 56-00 |) 7 | 518-2 15 04-21) 17 | 524-6]! 18 10 56-30 |) 12 | 514-0 20 03-70 || 22 | 528-0] 23 15 | 24 57-34]] 17 | 512-7 25 05-09 || 27 | 527-9] 28 20 | 25 02-99 || 22 | 520-2 30 04-82 || 32 | 534-0]] 33 25 07-37 || 27 | 520-1 35 04-21 || 37 | 534-4] 38 30 07-25 || 32 | 516-0 40 02-40 2) 534-6 || 43 35 06-16 || 37 | 520-0 45 | 25 00-87 || 47 | 536-9]! 48 40 03-75 || 42 | 524-5 50 | 24 59-53 ]| 52 | 537-6]| 53 45 | 25 01-76 47 | 528-2 55 | 25 00-00 }| 57 | 535-1}| 58 50 | 24 59-03 || 52 | 528-1 27 14 0 | 24 59-37 2) 545-4 3 | 55 58-63 |) 57 | 534-5 5 | 25 01-68 7 | 544-0 8 30 14} O 56-90 2 | 533-2 10 04-81 || 12 | 538-9] 13 5 56-70 7 | 536-6 15 00-64 || 17 | 541-7 || 18 10 55-65 || 12 | 527-2 20 01-68 || 22 | 540-5 || 23 15 53-92 || 17 | 522-0 25 00-001 27 | 534-71] 28 20 51-27 || 22 | 517-1 Birtmar. k=0:000140. BALANCE, k=0:000010. DECLINATION * May 144 12, April 254, May 164 5» 25m, Clock put right ; error previously — 28°. Instruments evidently slightly disturbed throughout the evening. sooooceo fej4a,}h, ExtTRA OBSERVATIONS OF MAGNETOMETERS, APRIL 30—JuLy 24, 1845. 107 NCE Gott. BIFILAR BALANCE Gott. BIFILAR BALANCE aa | Mean DECHINATION. Corrected. Corrected. Mean DECLINATION. Corrected. Comracten Time. Time. a. oh. |)Min.| © ¢ Min. | Se. Div. || Min. | Mic. Div.f d. oh. |] Min.] ° Min. | Se. Diy. ||Min. |Mic. Div. 18 14 || 35 | 25 03-67|| 37 | 530-0]| 38 | 385-9] 4 12 || 10 | 25 06-73]! 12 | 541-1] 13 | 473-1 45 03-02 || 47 | 531-9|| 48 | 398-0 20 08-28 || 22 | 541-6 || 23 | 472-8 18 15 0 09-32 || 2 | 533-4 3 | 403-5 40 10-20}) 42 | 542-8 || 43 | 470-2 15 17-60 || 17 | 537-9] 18 | 395-5] 4 13 0 09-46 || 2 | 541-1 3 | 469-7 25 17-94 || 27 | 542-1 || 28 | 378-3 }———__|_|____—___|—_- — = Bb) 17-60 || 37 | 546-9|| 38 | 367-9] 7 12 0 | 25 11-14]; 2} 546-0 3 | 454-5 45 17-02 || 47 | 538-6 |] 48 | 364-2 10 13-32 || 12 | 546-0]| 13 | 450-7 18 16 0 20-62 |} 2} 508-3)| 3 | 363-7 20 12-78 || 22 | 547-5 || 23 | 442.5 10 25-06 || 12 | 502-6 || 13 | 351-2 35 14-06 || 37 | 548-0|| 38 | 432.7 20 27-75 || 22 | 506-0 || 23 | 319-6 40 14-85 || 42 | 548-1]! 43 | 428-8 25 23-19 || 27 | 513-7 || 28 | 303-8 45 15-78 || 47 | 544-4 || 48 | 425-7 30 18-61 || 32 | 514-1 || 33 | 287-9 50 16-41 || 52 | 542-7 || 53 | 426-2 35 13-27 || 37 | 520-4 |) 38 | 287-6 55 17-53 || 57 | 540-9 || 58 | 417-4 40 10-60 || 42 | 521-3] 43 | 284-7] 7 13 0 18-50 |; 2 | 540-0 3 | 412-8 45 09-82 || 47 | 520-8 || 48 | 291-1 5 16-92], 7 | 539-2]| 8 | 408-0 18 17 0 10-11 2 | 526-7|| 3 | 379-0 10 16-01 || 12 | 537-5|| 13 | 405-4 15 08-19 || 17 | 524-1|| 18 | 369-0 20 13-12 || 22 | 537-9]| 23 | 401-7 45 07-69 || 47 | 528-3| 48 | 432-3 46 08-48 || 47 | 539-0 || 48 | 409-5 18 18 0 08-14/| 2 527-7 | 3 | 451-1] 7 14 0 08-66 || 2 | 539-4 3 | 419-7 27 | 523-0 || 28 | 477-2 |———}—-—_|_— —_|— 18 19 8 08-39 || 9 | 522-6) 10 | 495-77 8 8 0 | 25 11-46 2 | 552-8 3 | 496-2 20 08-11 || 22 | 523-0]) 23 | 497-9 10 12-65 || 12 | 542-7 || 13 | 504-8 18 20 0 08-19||} 2 | 525-6]} 3 | 505-1 15 12-69 | 17 | 538-0]| 18 | 507-2 —||——_ — 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 31 06-66 || 32 | 535-2) 33 | 490-3 40 08-85 | 42 | 552-2]| 43 | 503-7 20 14 07-67 || 2 | 534-4] 3 | 482-37 8 9 0 09-51 2) 552.3 3 | 500-1 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 20 05-99 || 22 | 540-9} 23 | 527-9 15 20-35 | 17 | 527-9}! 18 460-5 22 11 0 10-43 2 | 540-0|| 3 | 522-0 20 20-52 |, 22 | 529.9}| 23 | 454-8 = — 30 19-84 | 32 | 531-3] 33 | 442-7 29 13 0 | 25 13-56], 2 | 544-8]| 3 | 497.3 40 18-34 42 | 533-0]| 43 | 435-2 35 10-18 || 37 | 545-2|| 38 | 492-97 8 18 0 15-34 ]) 2 | 536-7 3 | 418-3 29 14 0 09-89 || 2 | 544-5|| 3 | 491-8 32 10-23 | 33 | 541-2]| 34 | 423-0 | — 8 19 0 05-99}, 2] 539-5 3 | 436-1 cat O | 25 22-15 2 | 550-3 3 | 497-4 -—|— —| —_| ——__ || —— 30 22-27 || 32 | 551-9|| 33 | 500-3 L7Gr2 0 | 25 21-23 2 | 540-6 3 | 467-2 4 2 0 15-12], 2 | 535-4|) 3 | 511-1 40 21-26 |, 42 | 541-2]| 43 | 468-5 4 4 0 19-51 2) 533-7] 3 | 553-1) 17 3 0 20-89] 2) 543-0 3 | 467-7 . 15 20-58 || 17 | 551-1 |} 18 | 548-5 25 19-01 || 27 | 562.1] 28 | 547-1] 17 8 0 |} 25 11-12}; 2) 554-2]) 3 | 484-2 35 18-13 || 37 | 562-7 || 38 | 550-9 31 | 07-87 || 32 | 554-3 || 33 | 486-4 45 17-83 || 47 | 557-7|| 48 | 559-7] 17. 9 0 08-80|| 2 | 553-7 3 | 486-2 4 5] 0 19-12|| 2] 547-9] 3 | 571-8 30 15-11|| 32 | 551-9]] 33 | 577-2} 17 12 0 | 25 07-00 | 2 | 544-5 3 | 469-0 45 14-64 || 47 | 552-1}| 48 | 577-8} 30 08-14 || 32 | 543-8 |) 33 | 468-8 c 4 6 0 15-31 2) 554-4)) 3 | 580-0] 17 13 0 08-32 2 | 542-7 3 | 469-8 7-9 8 13 0 | 25 07-79)|| 2] 539-9] 3 | 479-59 18 13 0 | 25 08-38] 2 | 543-2] 3 | 439-2 8 20 04-98 || 22 | 539-8 |) 23 | 473-6 15 06-06 | 17 | 539-8} 18 | 444-5 0 3 04-76 || 32 | 538-9}) 33 | 472-1 20 05-42 || 22 | 538-5 || 23 | 445-8 : 8 14 0 05-22|| 2] 531-0|| 3 | 475-69 18 14 0 07-38 |, 2 | 537-5 3 | 452.3 6 10 8 0 | 25 07-05|| 2 | 560-1 3 | 536-6] 18 21 3 | 2512-04] 4 | 529.2 5 | 470-5 9 15 09-20 || 17 | 557-6|| 18 | 540-3 15 13-52] 17 | 530-5 || 18 | 467-1 7 30 10-20 || 32 | 551-7 || 33 | 540-8 32 12-87| 33 | 528-1 || 34 | 463-5 3 10 9 0 11-34]| 2] 547-9]| 3 | 536-8] 18 22 0 11-03 2 | 529-4 3 | 457-1 8 377-8] t4 12 0 | 25 04-82|| 2] 548-0) 3 | 471-1] 24 11 0 | 25 08-93) 2 | 534-5 3 | 481-1 Birizar. k=0:000140. BaLance. k—0:000010. t July 44 12», Ly 7a 8 0™. The declination and bifilar magnets vibrating slightly and irregularly ; the declination changing its mean position to a small ent ; it has gradually gone eastward till 30™ ; the bifilar has been nearly stationary. 108 EXTRA OBSERVATIONS OF MAGNETOMETERS, JuLY 24—Aueust 4, 1845. = Gott. BIFILAR BALANCE Gott. BIFILaR BALANCE Gott. Mean DECLINATION, Gorrectad® Gorractad. Mean DECLINATION. Gorredtad. Gorrected: Mean DECLINA’ Time. Time. Time. a Oh. | Min. os 4 Min. | Se. Div. |} Min. | Mic. Div. ak Min. eo %, Min. | Se. Div. || Min. | Mic. Div. da. oh, Min. oY 24 11 | 20 | 25 09-10 || 22 | 538-1 |) 23 | 479-5] 24 20 0 | 25 16-82 2] 518-9 3 | 350-9 1 11 || 10 | 24 53.6 2412| O 07-55} 2 | 5338-1 3 | 476-0 10 18-40 || 12 | 517-8 || 13 | 355-0 15 54: 24 13 0 | 03-30) 2 | 536-0 3 | 459-4 20 19-04 || 22 | 520-3 || 23 | 360-5 20 | 24 57. | 15 | 25 03-23 || 17 | 531-2]) 18 | 450-5 30 17-53 || 32 | 525-7] 33 | 361-4 25 | 25 00.2 24 14) O| 24 54-26 | 2 | 523-5 3 | 405-0f 40 19-49 || 42 | 518-2]) 43 | 368-0 30 03-2 10 | 24 58-58) 12 | 520-3]} 13 | 394-9 50 14-50} 52 | 511-7}! 53 | 375-4 40 10-4 | 15 | 25 00-84 || 17 | 521-9 18 | 386-0} 24 21 0 16-53 2 | 514-3|| 3 | 382-2 f 50 10-5 20 02-17 | 22 | 529-9]| 23 | 377-9 15 14-13 |] 17 | 512-8|| 18 | 388-1 1 12 0 06. Weed) 02-57 || 27 535-5 || 28 | 367-4 32 17-36 || 33 | 513-0 || 34 | 396-2 10 06-2 | 30 | 02-48 || 32 | 530-0 ]| 33 | 359-8] 24 22 0 20-33 2 | 516-9 3+} 398-8 20 07: | 35 01-38 || 37 | 524-0]| 38 20 17-46 || 22 | 503-9 || 23 | 412-2 30 07-0 | 40 | 25 00-67 | 42 | 521-3 || 43 25 17-96 || 27 | 505-9 || 28 | 414-6 40 05-1 45 | 24 58-62) 47 | 518-7 || 48 40 18-43 || 42 | 503-3 || 43 | 428-5 50 03-0 50 56-50 || 52 | 514-4) 53 | 24 23 0 18-60 2 | 500-4|| 3 | 437-3 113 0 02.2 55 54-95 || 57 | 520-7] 58 15 19-17} 17 | 497-9 || 18 | 442-3 10 05.2! 24 15 0 55-78 2 | 527-2 3 | 328-1 30 22-84 || 32 | 499-5 || 33 | 451-1 25 09.4 5 56-63 7 | 529-0 8 | 322-8] 25 0 0 18-81 2 | 505-7 | 3 | 451-2 35 10. } 10 | 24 57-61) 12 | 531-7} 13 | 318-5 32 | 510-5 || 33 | 457-9 50 155 15 | 25 00-27 |) 17 | 536-2] 18 | 314-4 35 18-67 | 1 14 0 18-3 | 20 03-35 || 22 | 538-2]) 23 | 312-0] 25 1 0 17-65 2 | 529-8 3 | 466-8 10 19-4 25 09-3 27 | 546-0 |) 28 | 306-5 30 16-32 |} 32 | 535-3] 33 | 481-9 20 16-9 | 30 13-05 || 32 | 554-2]| 33 | 295-3] 295 2 0 17-19 2 | 538-2 3 | 482-9 30 13-8 3.5) 11-81 || 37 | 554-1 || 38 | 281-8 40 12.8 40 07-57 || 42 | 548-4 | 43 | 275-5] 25 10 0 | 25 03-13 2 | 539-6 3 | 453-0 50 10:5 45 07-40 || 47 | 550-6 || 48 | 273-4 10 02-99 || 12 | 543-6]| 13 | 448-3 115 0 10-0 50 05-94] 52 | 551-9) 53 | 276-8 20 05-89 || 22 | 541-9} 23 | 447-6 20 12-9 | 55 08-03 || 57 | 547-3 || 58 | 279-6] 25 11 0 08-58 2 | 534-7 3 | 446-1 45 08-4 24 16 0 08-90 2 | 546-4 3 | 280-6] - — = — 1 16 0 03-7 15 12-58 || 17 | 529-1]| 18 | 290-0 Lar? 0 | 25 23-88 2 | 558-7 3 | 458-7 10 02-2 20 14-24 || 22 | 520-7 || 23 | 295-2 10 25-09 || 12 | 538-7 || 13 | 465-9 20 03. 25 15-51 || 27 | 519-0) 28 | 296-3 25 26-74 || 27 | 521-8] 28 | 471-4 40 07-1 30 16-55 || 32 | 517-5]! 33 | 293-8 30 28-04 || 32 | 526-0] 33 | 470-0 i ily 0 08.0 | 35 16-41 || 37 | 515-4] 38 | 288-4 40 26-50 || 42 | 538-1|| 43 | 464-1 I 40 16-26 || 42 | 510-0} 43 | 284.3 50 23-95 || 52 | 534-9 || 53 | 468-1 2 11 0 | 25 06:2 45 17-73 || 47 | 506-5 || 48 | 285-2 eS 0 22-99 2 | 539-8 3 | 468-6 10 05-3 a0 19-07 || 52 | 510-3) 53 | 291-5 10 21-64 |) 12 | 503-4] 13 | 481-4 30 10-( 55 20-16 || 57 | 513-6]) 58 | 300-3 16 23-14|| 17 | 515-4) 18 | 480-4] 2 12 0 05-9 24 17 0 21-56 2} 512.3 3 | 304-2 20 22-67 || 22 | 528-2}) 23 | 476-5 —|—| = 5 24-33 GA\e512-1 8 | 302-1 25 21-97 || 27 | 540-9|) 28 | 474.2— 3 14 0 | 25 11-45 10 27-15 || 12 | 514-3]) 13 | 298.2 30 21-46 || 32 | 550-4 ]| 33 | 473-7] 15 17 15 29-90 || 17 | 525-3] 18 | 291-1 35 21-24|| 37 | 554-3 || 38 | 473.8 20 19-5 20 29-26 || 22 | 535-6 || 23 | 283-8 40 21-12|) 42 | 559-8 || 43 | 475-3 25 20:5 25 26:81 |) 27 | 527-7|) 28 | 278-2 45 21-68 || 47 | 558-0 || 48 | 479-7 30 21 30 24-19 | 32 | 526-0) 33 | 274.4 50 21-24]| 52 | 560-8] 53 | 481-4 35 21.2 35 23-34 || 37 | 525-2]| 38 | 274-7 55 21-50]! 57 | 557-2|) 58 | 484-2 40 214 40 22.77 || 42 | 520-2] 43 | 277-2 1 4 0 20-55 2 | 555-5 3 | 488-1 45 20: 45 24-52 || 47 | 522-9) 48 278-2 17 | 566-6 |) 18 | 493-7 50 18-5 | 50 25-54 || 52 | 523-3, 53 | 280-0 35 22.80 |] 37 | 585-0]! 38 | 502-5 55 5. 55 24-82)| 57 | 516-0] 58 | 281-6 47 | 564-5 || 48 | 525-67 3 15 0 14 24 18 0 22-87 2 | 512.8 3 | 285-7 to 0 19-91 2 | 546-9 3 | 560-7 31 09: 5: | 22-28 7 | 514-0 8 | 288-5 10 18-77 || 12 | 534-4]) 13 | 575-9] 3 16 0 07: 15 20-89 || 17 | 513-4]| 18 | 289.3 20 19-37 || 22 | 543-8 |) 23 | 575-3] 3 20 0 09. 40 18-30 |) 42 | 516-2]| 43 | 315-4 30 | 18-50 || 32 | 549-8 || 33 | 569-8 38 12. 24 19 0 19-07 2 | 518-1 3 | 320-2 40 21:06 || 42 | 567-2]| 43 | 562-3] 3 21 0 12- 10 | 19-04 || 12 | 514-9}) 13 | 322.7 || 50 20-201] 52 | 553-9|| 53 | 565-6 |__| 15 | 18-20 || 17 | 512.4) 18 | 327-5 6 0 | 19-41 2 | 552-5 3 | 569-4) 4 3 0 | 25 15:1 25 19-61 || 27 | 514-0 || 28 | 328.4 toa 16-68 || 17 | 535-2|| 18 | 576-9 Sith 16 30 19-81 || 32 | 510-2]| 33 | 334-7 30 | 14-53 || 32 | 538-6|| 33 | 566-97 4 4 0 16- 40 18-77 || 42 | 515-5 || 43 | 341-1 lew 7 O | 25 13-25 2 | 549-1 3 | 537-2 50 17-22|| 52 | 508-1 |) 53 | 349-0 | 4 14 0 | 25 05: 55 17-00 | 57 | 515-01 58 | 349-2 Det 5 | 24 54.01 6 | 551-8 7 | 408-9 30 05- Birirar. k=9:000140. BALANCE. k=0:000010. July 24° 14h lom. A very small insect climbing along one of the balance spider crosses ; length of the insect about 7 micrometer divisions, 0 rather more than a thousandth of an inch. July 25*. The instruments slightly disturbed throughout the evening. BALANCE Corrected. BIFILAR lorrected. Min. 13 18 23 28 33 43 53 Mic. Div. 406-9 407-5 408-8 408-4 408-7 408-5 404-7 404-4 409-0 410-0 409-6 403-6 405-8 417-8 428-3 427-0 424-6 428-2 419-5 408-5 394-8 392-2 380-7 379-0 375-6 380-6 374-2 374-0 378-0 lin. | Sc. Div. 551-0 384-0 383:3 374-0 462-2 452-6 427-1 426-4 423.7 430-7 429-9 427-0 422.6 419-4 415-2 412-4 410-8 410-3 410-3 422.8 438-3 472-1 463-1 459-6 506-7 518-3 517-9 435-1 437-4 14 15 16 12 3 17 16 Aug. 84 11419, . AND MET. oBs. 1845. EXTRA OBSERVATIONS OF MAGNETOMETERS, AuGusT 1—31, 1845. 109 BIFILAR BALANCE Soi. BIFILAR BALANCE DECLINATION. Corrected. Corrected. ee DECLINATION. Corrected. Corrected, Min. 2 f. Min. | Se. Diy. || Min. | Mic. Div. CAN 8 Min. = is Min. | Se. Div. Min. | Mic. Div. 0 | 25 06-12]) 2 } 535-3 3 | 444-9] 17 16 || 20 | 25 01-61) 22 | 542-5]! 23 | 375-6 0 16-08 2) 531-9] 3 | 432.7 30 00-87 || 32 | 535-6 || 33 | 388.5 15 15-44 || 17 | 530-9] 18 | 430-8 45 02-42 || 47 | 535-1 || 48 | 399-1 30 14-53 | 32 | 532-1] 33 | 429-7] 17 17 0 01-95 2 | 538-4 3 | 404-0 0 13-36 2 | 534-8] 3 | 425-9 35 06-79 || 37 | 519-3] 38 | 421-1 > ee ee — 17 18 0 11-10 2 | 525-6] 3 | 425.2 0 | 25 06-14 2 | 527-3 3 | S255) || - 16 15-07 || 17 | 527-1] 18 22 14 0 | 25 02-01}} 2 | 538-1 3 | 447-5 0 08-19 2) 527-7] 3 10 01-41 |} 12 | 536-1) 13 | 448-5 7 e2es — 20 01-95 | 22 | 536-8 |) 23 | 449.6 0 | 25 12-83 2) 542-3] 3 30 02-64 || 32 | 534-9 || 33 | 452.0 15 09-76 || 17 | 541-1] 18 22 15 0 04-98 || 2 | 536-4 3 | 455-2 30 08-18 || 32 | 542-0} 33 -—— las 45 05-42 || 47 | 540-5 || 48 24 16 0 | 25 14-21 2 | 539-4|| 3 | 430-7 0 04-56 || 2 | 529-8] 3 10 13-79 || 12 | 546-3 || 13 | 420-7 10 06-63 || 12 | 532-6] 13 30 07-10 | 32 | 547-5) 33 | 411-5 20 10-33 || 22 | 535.2] 23 24 17 0 03-40 2] 543-5 3 | 418-1 30 12-42]! 32 | 534-6 || 33 SS 45 17-83 || 47 | 537-8] 48 26 4 0 | 25 16-62]} 2 | 562-0 3 | 466-1 51 21-90 || 53 | 534.9] 54 37 18-84 || 38 | 545-5) 39 | 491-5 55 24-79 || 57 | 533-3 58 40 19-12 || 42 | 550-9 || 43 | 491.2 0 26-16 || 2 | 532-9] 3 26 5 0 17-76 || 2 | 552-1 3 | 503-4 5 25:02] 7 | 531-9] 8 (a psees 10 22-64 |) 12 | 533.2)| 13 28 12 0 | 25 03-84|| 2 | 540-2) 3 | 446-0 15 18-70 || 17 | 535-2|| 18 15 06-64 || 17 | 544-2) 18 | 444-0 20 15-22} 22 | 538-0] 23 35 04-61 || 37 | 541-8 || 38 | 440-4 25 12-98 || 27 | 539-5 || 28 28 13 0 05-72|| 2 | 542-9] 3 | 432-3 30 11-64 || 32 | 539-6) 33 _-———_}—_—_—__| _——_ 35 11-64 || 37 | 538-8], 38 29 3 0 | 25 22-98 2 | 560-9] 3 | 462.5 0 07-20) 2 | 540-6] 3 10 23-12 |) 12 | 552-0|| 13 | 465-3 30 06-39 || 32 | 540-3 || 33 20 21-36 || 22 | 534-1) 23 | 471-2 0 06-26 || 2 | 537-5 3 25 20-80 || 27 | 529-6 || 28 | 472-2 See ——— 35 16-93 || 37 | 537-2) 38 | 453-8 0 | 25 00-69|| 2 | 550-6) 3 29 4 0 | 25 14-87|| 2 | 553-3 3 | 477-4 5 00:96 || 7 | 546-8] 8 208 bi 0 | 24 51-16|| 2) 549-9] 3 | 493.4 10 00-51 || 12 | 544.3) 13 5 48-58) 7 | 560-1 8 | 494.4 ———|—____—__|_ —__ — 10 46-41 || 12 | 568-7 || 13 | 493-8 0 | 25 22-80 2| 513-7] 3 15 46-11 || 17 | 578-1 || 18 | 489-6 25 21-86 || 27 | 555-8 | 28 20 50-25 || 22 | 574-9 || 23 | 489.3 35 21-23 | 37 | 565-6) 38 25 52-91 || 27 | 569-7 || 28 | 489.8 45 20-52 |) 47 | 568-1] 48 30 45-56 || 32 | 559-1] 33 | 493-2 55 20-89 || 57 | 572-6|| 58 40 57-84 || 42 | 552-4) 43 | 494.5 0 19-86 || 2] 563-6) 3 50 | 24 57-84 || 52 | 545-1]! 53 | 494.0 15 19-28} 17 | 542-3] 18 29 8 0 | 25 01-78 2] 548-1 3 | 490-6 25 18-25 || 27 | 537-6] 28 20 01-41 || 22 | 542-1 || 23 | 484-6 35 17-42 || 37 | 541-3] 38 40 05-32 || 42 | 534-4 || 43 | 477-7 45 16:75 | 47 | 546-1] 48 29 9 0 04-08 2] 531-9 3 | 461-0 0 15:94] 2] 550-8] 3 15 03-74 || 17 | 515-7 || 18 | 440.0 — 20 | 25 01-21 || 22 | 511-8]| 23 | 418-5 0 | 25 01-34]| 2 | 531-8 3 25 | 24 59-57 || 27 | 530-2|| 28 | 386-5 10 00-67 || 12 | 526-8] 13 30 57-31 || 32 | 512-3]! 33 | 349-5 0 04-91 2| 537-8] 3 35 53-11 || 37 | 511-9} 38 | 327-3 0 16-15 Fil DORR Wt 40 43-65 || 42 | 515-1) 43 | 285-0 15 20-11 || 17 | 550-8 || 18 45 46-73 || 47 | 521-7] 48 | 244-1 20 23-21 || 22 | 557-5 || 23 50 52-20 || 52 | 519-7) 53 | 206-1 25 23-27 || 27 | 555-8 || 28 * 55 46.41 || 57 | 496-3 30 20-99 || 32 | 552.0] 33 29 10 0 | 24 45-87 2 | 508-5 3 | 224.5 35 18-16 | 37 | 549-3] 38 ——— —__ —_ —_ — 50 11-24] 52 | 547-2] 53 31 15 0 | 25°17-12 2| 525-4] 3 | 418-1 0 08-25 || 2) 548-2] 3 10 17-49 | 12 | 528-6] 13 | 406-1 10 04-84 || 12 | 547-7] 13 30 13-91 || 32 | 531-8 || 33 | 383-2 BIFILAR. k=0-000140. BaLance. k=0:000010. * See notes on the Aurora Borealis, after the Extra Observations of Magnetometers. The magnets moving irregularly at intervals. 25 110 ExtTRA OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 1—19, 1845. Gott. 2 Gott. 5 Gott. , Mean DECLINATION. Cane poe Mean DECLINATION, Pteaer 9 Raa Mean DECLINATIO Time. Time. : Time. : a. h. |] Min.] 2&7” Min. | Se. Diy. || Min. | Mic. Div.J a. n. || Min. | 2 Min. | Se. Diy. |] Min. | Mic. Diy. h. || Min.} © 31 16 || 0} 25 08.92 1 | 533-4 2! 385-3] 3 9 || 20 | 24 58-45]| 22 | 541-2] 23 | 498-4] 17 10 0} 251 = —— — 41 | 24 59-81]| 42 | 545-7|| 43 | 490-8 10 0 1 hee 3 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 | 453-9] 3 10 0 04-51 2} 541-3 3 | 485-2 20 | 46 07-60 | 47 | 538-6}; 48 | 449-5 10 06-32 || 12 | 542-5] 13 | 480-6 30 | 25 oe?) 0 05-11 2 | 542-8 3 | 445-9] 3 11 0 08-43 2 | 539-3 3 | 474-3 35 | 24 —|_——$ | ——| ——— 42 1°15 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 55 40 15-31 || 42 | 539-2} 43 | 376-8 15 10-70 || 17 | 534-1 || 18 | 538-2] 17 12 0 1 16 0 09-66 2 | 540-3 3 | 376-6] 4 6 0 09-44 2 | 536-8 3 | 526-9 5 eL7: 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 50 119 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 2 | 537-1 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 || 2 | 529-7 3 | 412-4 55 10-83 | 57 | 534-9]! 58 | 524.2 10 03-02 || 12 | 529-6 ]/ 13 | 415-1 206 0 10-60 2 | 535-5 3 | 520-7] 7 17 0 03-61 2 | 530-6 3 | 415-5 BD 0 | 25 00-47 2 | 536-1 3 | 486-9 10 02-01 || 12 | 531-0} 13 | 419-3 10 | 24 57-17 || 12 | 551-7] 13 | 464.3] 7 18 0 01-31 2 | 539-0 3 | 441-3 15 | 25 02-75 || 17 | 547-2] 18 | 458-9 10 02-69 || 12 | 538-9 || 13 | 445-7 20 | 24 55-13 || 22 | 556.2]} 23 | 447.4] 7 19 0 04-86 2 | 534-9 3 | 459-8 25 | 24 56-54 || 27 | 564-3 || 28 | 437-2} — = 30 | 25 00-40|| 32 | 547-3] 33 | 431-4] 8 14 0 | 25 08-36 2 | 543-1 3 | 411-9 35 02.82 }| 37 | 555-7 || 38 | 425-0 15 08-73 || 17 | 541-7 || 18 | 414-4 40 06-86 || 42 | 550-2)| 43 | 420-5] 8 15 0 05-52 2 | 539-5 3 | 429-2 50 12-73 | 52 | 516-3 }} 53 | 422-5 - —- 55 04-81 || 57 | 530-4) 58 | 423-4] 9 13 0 | 25 15-81 2 | 543.2 3 | 438-5 2 10 0 04-17 2 | 541-6 3 | 421-8 15 14-80 || 17 | 548-5} 18 | 427-9 eS 09-89 7 | 530-8 8 | 422-4] 9 14 0 10-07 2 | 546-0 3 | 412-3 10 11-37 || 12 | 517-7|| 13 | 427-3] 9 16 0 07-24 2 | 540-3 3 | 4313 15 07-24} 17 | 522-6] 18 | 431-2 20 05-60 || 22 | 540-5 || 23 | 434-7 20 06.39 || 22 | 529-0}| 23 | 435-7 35 06-30 || 37 | 540-3] 38 | 437-6 25 06-63 || 27 | 529-1 || 28 | 438-5] 9 17 0 06-46 2] 541-5] 3 | 438-9 211 0 05:43 )| 2 | 532-4 3 | 451-8 = i] - = -|— 212 0 09-46 2 | 551-8 3 | 400-77 11 9 0 | 25 03-02 Zz 544.6 | 3 | 474-4 #5 | 07-20 || 17 | 543-8) 18 | 394.9 15 06-06 || 17 | 541-5) 18 | 473-1 213 07) 07-20 2 | 534-0}, 3 | 405-7] 11 10 0 08-32 2| 543-2)) 3 | 465.8 2 15 0 11-72 2 | 534-3] 3 | 433-1 —|—— - —— |_| 15 | 09-27 | 17 | 537-2) 18 | 428-7] 12 13 0 | 25 09-66 2 | 552-8 3 | 435-7 2 16 0 04-32 || 2) 529-7) 3 | 443-8 15 07-13 || 17 | 548-1} 18 | 426-5 | | 30 06-34 || 32 | 543-41 33 | 424-3 3 4 0 | 25 10-47 2 | 542-2] 3 | 584.0] 12 14 0 06-09 2 | 543-2 3 | 419-2 | 15 17-93 || 17 | 531-9 || 18 | 587-6 — - 25 | 16-89 | 27 | 522-5] 28 | 582-7] 13 9 0 | 25 03-57 2 | 531-8 3 | 465-1 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 3.5 0 14-98 || 2 | 549-7 | 3 573-7} 13 10 0 08-88 || 2 | 540-3 3 | 458-1 | 3 3 9] 0 | 25 01-45) 2| 534.0| 3 | 503.3] 16 10] 0 | 25 0412] 2] 538.8) 3 | 460.5 ) 10 | 24 59-68 | 12 | 537-6} 13 | 501-0 10 04-26 || 12 | 536-9 |) 13 | 460-4 15 | 58-25 || 17 | 538-6!) 18 499-41 16 11 0 08-08 2 | 541-5 3 | 452-3 Birmar. k=0-000140. BALANCE. k=0-000010. * See notes on the Aurora Borealis, after the Extra Observations of Magnetometers. Sept. 174 10% 46m, Clock put forward 16%; error afterwards + 2%, —— — ) ExTrA OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 17—OcToBER 20, 1845. 111 Gott. BIFILAR BALANCE Gott. BIFILAR BALAN! ete. Mean DECLINATION. Corrected. Corrected. Mean DECLINATION. Corrected. Once Time. Time. Min. | Mic. Div. id.) Uh Min. 2 v Min. | Se. Div. || Min. | Mie. Div. ids he Min. o 4 Min. | Se. Div. |} Min. | Mic. Div, 456-61 19 10 | 30 | 24 57-21) 32 | 524-3] 3; | 431-0] 3 15 0 | 25 08-16 2 | 540-8 3 | 414.0 13 | 458-8 40 | 24 59-70] 42 | 524-4] 43 | 430-2 ee 23 | 456-77 19 11 0 | 25 05-77 2 | 525-3 3 | 433-8] 6 12 0 | 25 11-61 2 | 554-1 3 | 431-6 3 | 447-2 ee — 15 08-65 || 17 | 548-2|| 18 | 428-3 23 | 423-37 20 10 0 | 25 04-22 2 | 540-0 3 | 457-9] 6 13 0 06-73 2 | 544-5 3 | 429-6 33 | 422-5 10 | 24 97-10} 12 | 553-6} 13 | 447-9 | 38 | 426-1 15 54-68] 17 | 559-9] 18 | 443-47 9 11 0 | 24 43-72 2 | 512-3 3 | 420-3 44 | 428-1 20 54-92] 22 | 560-1] 23 | 440-2 5 42-71 7 | 522-2 8 | 403.4 48 | 424.1 30 | 24 56-97] 32 | 544-5] 33 | 439-3 . 10 42-44) 12 | 524-5|| 13 | 393-6 53 | 416-0} 20 11 0 | 25 01-78 2 | 527-8 3 | 443-3 15 44-97 | 17 | 518-1]) 18 | 377-5 58 | 412-2 21 05-89 || 22 | 533-1) 23 | 443-4 20 | 24 53-58 || 22 | 499.7) 23 | 357-5 3 | 410-8f 20 12 0 09-39 2 | 533-8 3 | 436-1 25 | 25 02-48] 27 | 476-9 || 28 | 328-3 8 | 408-8 = — - 3 10-36 | 32 | 457-2] 33 | 296-0 13 | 404-3) 24 8 0 | 25 11-10 2 | 557-7 3 | 441-3 | 30 13-74 | 37 | 472-1]| 38 | 305-9 23 | 398-6 20 10-98 || 22 | 551-7) 23 | 442-4 40 11-77 || 42 | 433-1] 43 | 263-8 28 | 394-5] 24 9 0 10-95 2 | 557-7 3 | 437-4 45 | 25 00-98] 47 | 450-7) 48 | 245.4 33 | 389-5 30 11-21 || 32 | 557-2]) 33 | 436-8 50 | 24 55-36 || 52 | 482.2 || 53 | 239.8 43 | 373-4} 24 10 0 10-80 2 | 555-2 3 | 437-8 55 53-74 || 57 | 493-7]| 58 | 233-8 53 | 362-1 == 9 12 0 53-32 2 | 499-1 3 | 236-8 3 | 339-6} 25 10 0 | 24 56-40 2 | 544-0 3 | 453-0 5 53-54 7 | 491-5 8 | 243-1 18 | 266-8 10 | 24 56-57 || 12 | 542-5} 13 | 449-1 10 52-50 | 12 | 498-1 || 13 | 244-8 25 11 3 | 25 07-81 4 | 547-7 5 | 409-0 15 52-46 || 17 | 495-4 || 18 | 248-9 20 09-86 || 22 | 541-6) 23 | 406-1 25 46-65 | 27 | 503-4|| 28 | 262-5 23 | 238-1] 25 12 0 07-71 2 | 534-9 3 | 396-5 30 46-52) 32 | 504-0) 33 | 266-8 40 48-83 | 42 | 501-6 || 43 | 272-8 25 16 0 | 25 14-13 2 | 518-6 3 | 382-4 50 56-07 || 52 | 498-2}) 53 | 281-6 28 | 225-9 31 17-26 || 32 | 521-5|| 33 | 377-6] 9 13 0 | 24 54-01 2 | 496-7 3 | 298-3 33 | 216-2] 25 17 0 12-76 2 | 529-8 3 | 388-0 15 | 25 01-14]) 17 | 510-0}) 18 | 344-1 38 | 216-3 ed - - 32 05-97 || 33 | 518-7 || 34 | 360-0 43) | 215-74 27 7 0 | 24 43-06 2 | 553-0 3 | 487-1 9 14 0 | 25 01-65 2 | 526-6 3 | 323-4 48 | 215.7 5 46-18 7 | 559-7 8 | 482-3 15 | 24 55-76] 17 | 526-8] 18 | 309-5 53 | 224-1 | 10 52-04 | 12 | 553-2|| 13 | 482-6 30 | 24 52-94] 32 | 519-5] 33 | 307-3 58 | 229-7 15 55-37 || 17 | 542-0} 18 | 484-1 45 | 24 57-78) 47 | 517-7]) 48 | 314-1 3 | 239-0 20 57-08 || 22 | 533-1) 23 | 485-5] 9 15 0 | 25 00-06 2 | 533-1 3 | 319-5 13 | 261-2] 27 8 0 | 24 57-56 2 | 528-9 3 | 485-2 15 00-06 | 17 | 539-4} 18 | 318-5 23 | 277-6 40 01-61 || 42 | 538-8) 43 | 350-2 43 | 292-0} 27 11 0 | 25 16-93 2 | 519-6 3 | 338-8] 916] O 06-73 2 | 535-2 3 | 372-6 48 | 292-9 10 05-35 || 12 | 535-3] 13 | 319-3 | 3 | 316-1 | 15 00-80 | 17 | 561-9] 18 | 324-0] 9 22 0 | 25 20-77 2 | 521-1 3 | 436-7 20 04-24 || 22 | 560-6 || 23 | 323-7 36 15-54] 37 | 533-2]) 38 | 429-5 3 | 424-3] 27 12 0 09-57 2 | 537-1 3 | 342-8] 9 23 3 16-92 4 | 528-5 5 | 437-6 23 | 420-1 — is — —|——_———_—__ ——— 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 3 | 425-9 10 10-65 || 12 | 550-3 || 13 | 397-4 6 04-24 7 | 544-2 8 | 412-9 23 | 425.2 1a 0 11-37 2 | 540-2 3 | 408-7 20 00-48) 21 | 544-8 || 22 | 410-2 3 | 402-8 —_—— -—— | — -—— 15 11 0 05-20 2 | 537-0 3 | 413-9 13 | 402-7] 3 5 0 | 25 07-04 2 | 534-1 3 | 475-7 — 28 | 404-6 20 04-56 || 22 | 546-6] 23 | 483-4] 17 11 0 | 25 12.48 2 | 552-9 3 | 425-4 44 | 408-1 25 07:07 | 27 | 541-4|| 28 | 484-8 45 06-29 || 27 | 540-6 || 28 | 418-0 3 | 407-9 30 07-47] 32 | 541-3]} 33 | 485-2 45 | 25 03-27] 47 | 530-6] 48 | 421-6 eee 36 0 11-75 2 | 535-9 3 | 482-6] 17 12 0 | 24 59-76 2 | 540-3 3 | 423-7 3 | 431-2 33 | 25 02-72] 34 | 534-3 || 35 | 430-4 33 | 425-8] 3 12 0 | 25 04-37 2 | 547-5 3 | 433-1] 17 13 0 04-41 2 | 534-7 3 | 431-1 3 | 428-0 10 03-70 | 12 | 545-3) 13 | 433-3 —|—_-——__|——- L—— =| 20 03-95 || 22 | 542-5] 23 | 431-8] 19 14 0 | 25 02.82 2 | 540-5 3 | 405-3 3 | 475-0] 3 13 t 0 08-41 2 | 540-3 3 | 432-3 30 04-91 || 32 | 541-7|| 33 | 407-5 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 33 | 447-9 10 14-70 || 12 | 546-9] 13 | 399-9 3 | 429-6 20 10-40 || 22 | 545-3 || 23 | 399-1] 20 3 0 | 25 25-43 2 | 542.7 3 | 445-5 13 | 427-5 30 08-93 | 32 | 544-0] 33 | 401-8 15 24-75) 17 | 537-3] 18 | 452-1 23 | 432-5 40 08-61 || 42 | 542-2]| 43 | 406-4 25 22-10 || 27 | 527-3|| 28 | 455-7 Biritar. k=0:000140. = Batance. k=0:000010. Sept. 204 16, Instruments slightly disturbed throughout the night. Sept. 284 13h_18. Idem. ~ Sept. 294 13h—18h, Idem. 112 EXTRA OBSERVATIONS OF MAGNETOMETERS, OCTOBER 20—-NOVEMBER 5, 1845. teas DECLINATION. Se Beneae hoa DECLINATION pele ne er wet DECLINATL : Corrected. Corrected. a Corrected. Corrected. ‘ATL Time. Time. Time. a. bh. || Miv.| 2° ¥ | atin. | Se.Div. | Min. |MGo.Div.| a. & | min.| © * Min. | Se. Diy. || Min. |Mic.Div.} a. h. || Min. 20 3 || 30 | 25 22.37)) 32 | 528-6]) 33 | 457-4] 21 14 | 30 | 25 08-14|| 32 | 546-4]) 33 | 286-9] 4 9 0 40 22-91 || 42 | 522-0]| 43 | 459-6 45 05-49 || 47 | 527-1]! 48 | 301-9 20 50 21-97 || 52 | 534-1] 53 | 459-1 50 06-73 |} 52 | 520-5 || 53 | 306-8 30 20 4 0 20-05 2 | 536-2 3 | 461-3 55 08-26 || 57 | 512-7 || 58 | 307-0 40 15 17-86 || 17 | 531-2] 18 | 463-5} 21 15 0 06-06 2 | 510-9] 3 | 306-7 50 25 16-21 || 27 | 535-1]} 28 | 461-2 10 08-28 || 12 | 514-7 || 13 | 306-8} 4 10 0 40 13-99 || 42 | 537-5 || 43 | 456-7 15 11-51 || 17 | 513-0) 18 | 304-0 10 20 5 0 13-07 2 | 542-2] 3 | 450-7 20 15-24 || 22 | 509-6 || 23 | 300-0 20 | 25 17-80 || 27 | 508-2|| 28 | 296-0] 4 11 0 20 11 0 | 25 08-95 2 | 533-0] 3 | 438-3 30 19-98 || 32 | 514-5 || 33 | 295-0 20 15 03:02 || 17 | 531-2} 18 | 441-8 35 20-38 || 37 | 518-4] 38 | 293-0] 4 12 0 37 05-18 || 38 | 529-5]| 39 | 448-7 40 19-34 || 42 | 521-4]| 43 | 291-1 *| 10 20 12 0 | 25 05-79 2 | 539-1 3 | 441-2 45 18-23 || 47 | 524-5 |) 48 | 291-9 15 20 13 0 | 24 58-33 2 | 539-2 3 | 400-5] 21 16 0 17-46 2 | 528-6|| 3 | 306-2 25 sal) 58-15 7 | 534-3 8 | 397-9 30 13-29 || 32 | 537-5 || 33 | 316-4 45 10 57-78 || 12 | 529-4]) 13 | 397-7] 21 17 0 11-10 2 | 535-8 3 | 346-1] 4 13 0 20 58-43 || 22 | 526-8]| 23 | 402-0 30 | 24 57-37 || 32 | 529-5|| 33 | 404-4] 22 6 0 | 25 01-58 2 | 540-3]| 3 | 467-3] 4 17 0 47 | 25 00-38 || 48 | 538-7] 49 | 404-1 15 06-23 || 17 | 534-7 || 18 | 468-8 15 20 14 0 01-85 2 | 535-9] 3 | 404.2 40 11-54/|| 42 | 540-6]| 43 | 459-67 4 18 0 42 03-02 || 43 | 537-0] 44 | 401-3] 22 7 0 12-18 2 | 540-0]| 3 | 454-3 20 15 0 00-38 2 | 540-5 3 | 395-6 —_—— 5 3 0 20 17 0 12-01 2 | 538-8 3 | 388-0] 28 12 0 | 25 03-40 2 | 537-9] 3 | 413-5 10 20 14-55 || 22 | 532-0] 23 | 387-8 10 05-23 || 12 | 536-9}| 13 | 413-2 25 30 18-95 || 32 | 532-1] 33 | 384-6] 28 13 0 07-27|| 2 | 548-6] 3 | 393-9 40 35 21-27 || 37 | 534-6]| 38 | 378.4 - arora —— 50 40 20-99 || 42 | 535-6]/ 43 | 371-1] 31 11 O | 24 59-27]} 2 | 532-9] 3 | 435-4 55 45 20-16 || 47 | 532-6} 48 | 366-9 10 | 24 58-79/| 12 | 524-7|| 13 | 442-4) 5 4 0 50 19-24}| 52 | 529-1|| 53 | 364-1 20 | 25 00-24}| 22 | 524-3 || 23 | 446-4 10 20 18 0 17-54 2 | 521-6 3 | 364-9 40 00-13 || 42 | 538-9] 43 | 439-5] 5 5 0 10 16-15 || 12 | 520-4) 13 | 371-4] 31 12 0 01-75 2] 541-1 3 | 429-7 10 20 19 0 19-91 2 | 518-4 3 | 396-3 — — 15 20 16-15 || 22 | 533-2] 23 | 392.2] 1 5 0 | 25 02-82 2 | 532-6|| 3 | 474-3 20 40 17-89 || 42 | 537-2|| 43 | 397-6 10 04-17 || 12 | 526-9]) 13 | 482-4 25 20 20 0 17-89 2 | 539-3 3 | 399-8 20 03-70 || 22 | 522-5 || 23 | 489-6 30 30 02-69 || 32 | 526-6] 33 | 491-4 35 21 9 0 | 25 08-12 2 | 532-0]| 3 | 453-3 42 03-97 || 43 | 523-0 || 44 | 492-2 40 5 | 25 05-13 7 | 519-0 8 | 459-2] 1 6 0 10-23 2 | 537-2] 3 | 481-5 45 10 | 24 59-32]| 12 | 510-9|| 13 | 462-4 10 12-92 |} 12 | 530-0) 13 | 479-1 50 15 54-46 || 17 | 518-5} 18 | 466-9 20 12-55 |} 22 | 536-9|| 23 | 474-9] 5 6 0 20 58-67 || 22 | 520-5] 23 | 476-9 30 13-93 || 32 | 533-3 || 33 | 473-0 5 25 55-71 || 27 | 526-2} 28 | 490-7 “| 40 13-05 || 42 | 533-9 || 43 | 469-6 15 30 43-72 || 32 | 528-7]| 33 | 506-4] 1 7 0 11-71 2 | 534-9]! 3 | 469-4 25 35 32-63 | 37 | 552-1 1 9 0 | 25 02-39 2 | 526-0 3 | 467-2 35 36 30-82 38 | 502-9 10 | 24 59-86 }| 12 | 526-9 || 13 | 463-7 *|) 45 39 32-10 20 58-15 || 22 | 522-4 || 23 | 460-8 55 40 33-15 || 41 | 561-6 45 57-44|| 47 | 513-4] 48 | 455-8] 5 7 0 42 | 560-8 || 43 | 482-97 1 10 0 59-19 2 | 515-4] 3 | 449-8 5 45 | 40-89 || 47 | 548-4 |) 48 | 477-9]- SS SSS — 16 50 44.03 || 52 | 538-6] 53 | 473-6] 2 15 0 | 25 17-83 2 | 544-7|| 3 | 400-5 35 55 43-85 || 57 | 537-3|| 58 | 469-0 10 13-59 || 12 | 546-7 || 13 | 391-7 45 21 10 0 46:59 || 2 | 534-4 3 | 466-1 15 12-38 || 17 | 545-2) 18 | 388-9 50 10 51-16 | 12 | 524-8]) 13 | 467-4 30 09-33 || 32 | 545-1 || 33 | 388-7 55 20 | 24 55-93 | 22 | 523-0] 23 | 467-1 45 06-32 || 47 | 545-1 || 48 | 392.0] 5 8 0 21 11 0 | 25 07-13 2 | 536-3 3 | 445-8] 2 16 0 06-46 2 | 544.3 3 | 398-5 5 30 07-00 || 32 | 539-7)) 33 | 415-7 30 09-03 || 32 | 544-2) 33 | 403-3 10 21 12 0 01-07 2 | 530-5] 3 | 403-3] 2 17 0 08-59 2 | 545-9 3 | 406-2 15 30 05-05 || 32 | 524-3] 33 | 389-9] 2 19 0 12-55 2 | 545-0) 3 | 414-5 20 21 13 0 04-75 2 | 517-0 3 | 369-1 25 15-01 || 27 | 536-9 || 28 | 418-2 25 21 14 0 08-95 2 | 532-7]/) 3 | 318-6 48 15-20|| 49 | 533-3 || 50 | 421-6 30 22 11-10 | 23 | 544-7|| 24 | 283-0} 2 20] O 14-84 2 | 530-6] 3 | 422-1 45 BrrinaR. k=0-000140. BaLancE. k=0:000010. * See notes on the Aurora Borealis, after the Extra Observations of Magnetometers. Noy. 54 7h 55™, Clock put back 8°; error afterwards 05. Extra OBSERVATIONS OF MAGNETOMETERS, NovEMBER 4—27, 1845. 113 _ MAG. AND MET. oBs. 1845. NCE Gott. BIFILAR BALANCE Gott. | BIFILAR BALANCE Wired. eee Mean DECLINATION. Corrected. Corrected. Mean DECLINATION, Corrected. Corrected. Time. Time. Min. d. oh. Min. a i Min. | Se. Diy. || Min. | Mic.Div.J d. h. Min. Y ft Min. | Se. Div. 5 9 0 | 25 05-32 2 | 532-5 3 | 536-8] 17 10 0 | 25 05-82 2 | 538-5 || 21 07-67 || 22 | 535-9] 23 | 528-6 16 06-21 || 17 | 540-8 5 10 09-91 2 | 538-2 3 | 505-5] 17 11 0 06-12 2 | 535-9 aw | 30 08-88 || 32 | 546-9 || 7 Oh 0 | 25 03-04 2 | 541-3 3 | 423-3] 17 12 0 07-94 2 | 533-8 40 02-86 || 42 | 532-0]} 43 | 420-8 30 (5-85 || 32 | 540.91) 35 7 12 0 04-71 2 | 532-8 3 | 419-4] 17 13 | O 07-69 2 | 537-1} — —— # 25 12-08 2 | 540-2 3 | 411-1] 18 6 || O| 24 54-32 2 | 532-3 15-07 || 33 | 544-3) 34 | 402-5 | 10 | 24 57-37 || 12 | 545.7 14-08 || 51 | 545-8 || 52 | 397-0 | 20 | 25 00-84 |) 22 | 542-4 11-98 543-9 3 | 395-1]. 30 04-10 || 32 | 536-5 18 7 0 03-43 2 | 539-8 25 00-72 2 | 541-3 3 | 434-4 | 30 08-11 || 32 | 542-3 24 57-22|| 12 | 538-5] 13 | 435-0] 18 8 0 | 25 09-62 2 | 545-2 24 56:43|| 17 | 536-0|| 18 | 486-7] 18 11 || 4 | 24 54-57 5 | 549-8 24 57-49 || 22 | 535-4]} 23 | 437-4 10 53-98 || 12 | 557-2 25 03-43)! 39 | 535-4|| 40 | 438-0 | 15 54-15 || 17 | 557-4 06-39 2 | 542-6]) 3 | 430-5 | 20 53-49 || 22 | 555-0 12-89 2 | 544-8 3 | 417-1 | 25 54-35 || 27 | 549-7 15-39 || 17 | 546-9] 18 | 409-6 30 55-42 || 32 | 543-9 10-50 || 37 | 545-3 || 38 | 401-1 | 35 55-49 || 37 | 541-5 08-29 2 | 550-1 3 | 389-9 | 50 | 24 59-59 || 52 | 533-0 —_———— —- — 18 12 || 0 | 25 03-43 2 | 535-0 25 16.79 2 | 510-9 3 | 422-9 15 10-36 || 17 | 539-1 20-58 || 17 | 509-7|| 18 | 422-6 30 10-43 || 32 | 543-6 25-22 || 32 | 508-2]| 33 | 417-9] 18 13 |, O 06-06 2 | 541-2 25-94]! 47 | 533-9|/ 48 | 411-6 —— 25-09 || 52 | 535-4] 53 | 408-77 19 5 | O | 25 08-46 2 | 530-7 24.12 2 | 528-1 3 | 411-3 20 01-09 || 22 | 545-0 21-50 || 12 | 529-5) 13 | 410-4 | 30 02-45 || 32 | 546-2 19-14 2 | 526-5 3 | 422.5719 6 0 06-26 2 | 541-3 17 6 0 | 25 11-28 2 | 542-7 3 | 461-0] 22 8 0 | 25 02-59 2 | 545-3 * 42 13-16 || 43 | 534-8]] 44 | 480-5 | 10 | 24 59-39 |) 12 | 552-9 yi ri 0 09-57 2 | 536-1 3 | 512-9 | 20 | 25 01-01 ]) 22 | 549-1 *| 6 | 25 07-10] 7 | 525-3 8 | 535-6] 22 9 0 06-50 2 | 543-6 10 | 24 58-55 || 12 | 533-3]] 13 | 528-0 —— —— 15 | 25 02-40]! 17 | 535-8]] 18 | 527-9] 24 8 0 | 25 05-11 2 | 537-2 20 | 25 04-86 10 | 24 59-12}| 12 | 551-0 25 | 25 05-00] 27 | 536-8|| 28 | 571-9 15 | 24 57-34)| 17 | 563-3 30 | 24 59-73 || 32 | 530-5|| 33 | 554-6 20 | 24 58-92]] 22 | 564-4 35 | 24 59-17 || 37 | 536-0|| 38 | 532.7 | 25 | 25 00-53 |) 27 | 561-4 40 | 25 01-11] 42 | 533-9]] 43 | 519-1 30 02-55 || 32 | 559-4 45 | 25 01-07 |) 47 | 527-4]| 48 | 516-2 40 04-17 || 42 | 543-3 50 | 25 00-18] 52 | 524-4|| 53 | 515-3] 24 9 0 02-01 2 | 540-7 55 | 24 57-42]| 57 | 528-7|| 58 | 514-1 30 05-58 || 32 | 549-0 17 8 0 | 24 58-82 2 | 526-1 3 | 516-8] 24 10 0 04-51 2 | 538-0 5 | 24 57-56 7 | 528-2 8 | 515-4 ee 15 | 24 55-33 || 17 | 526-8] 18 | 518-3] 26 11 0 | 25 03-57 2 | 550-6 30 | 25 02-25 || 32 | 521-7|| 33 | 509-7 15 04-41 ]} 17 | 552-4 *! 50 07-07 || 52 | 521-7|| 53 | 503-0 30 02-48 || 32 | 566-1 56 08-55 || 57 | 524-3]! 58 | 501-7 40 03-87 || 42 | 558-9 17 9 0 07-32 2 | 522-3 3 | 502-9] 26 12 0 02-86 2 | 543-5 * 6 02-12|| 7 | 531-5 8 | 499.4 30 07-78 || 32 | 543-9 11 04-21 || 12 | 538-4|/ 13 | 484-9] 26 13 0 08-34 2 | 547-1 15 07-87 || 17 | 535-7|| 18 | 471-0 }———-|_|_—__|_ 20 04-39 || 22 | 531-7|| 23 | 464-7} 27 11 0 | 25 02-20 2 | 541-0 25 09-47 || 27 | 530-7|) 28 | 461-2 10 03-16 || 12 | 541-7 35 09-49 || 37 | 528-6] 38 | 458-8 25 04-17 || 27 | 543-7 50 06-57 || 52 | 536-7 || 53 | 459-2] 27 12 0 05-92 2 | 540-9 Birizar. k=0:000140. BaLancEe. k=0:000010. * See notes on the Aurora Borealis, after the Extra Observations of Magnetometers. > | 2F 114 EXTRA OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 27—DECEMBER 3, 1845. Gott. Gott. Gott. Mean DECLINATION. a BERT ee Mean DECLINATION. a ners eee, Mean DECLINATION, Time. Time. Time d. h. |} Min. 2 4 Min. | Se. Div. || Min. |Mic. Div.[ 4d. h. || Min. os J Min. | Se. Diy. |} Min. |Mic. Div.} da. bh. || Min. 27 19 O | 25 15-34] 2 | 548-1 3 | 372-2] 3 4 || 16 | 24 56-67] 16 | 635-8 3 6] 17 10 12-04) 12 | 559-2|| 13 | 368-7 17 | 24 55-67) 17 | 641-3 || 17 | 768-0 18 20 08-90 | 22 | 557-0|, 23 | 368-0 | | 18 | 644-6 19 40 08-25 |) 42 | 555-3)| 43 | 370-9 | 19 | 653-6 || 19 | 757-3 20 27 20 0 09-08 2 | 554-7 3 | 372-1 | 20 | 25 02-55} 20 |660-+|| 20 | 760-4 21 —— (out jof field))) 21 | 763.4 22 2 12 0 | 25 05-05 2 | 541-1 3 | 429-8 22 14-26 22 | 763-5 23 30 06-66 | 32 | 542-0|| 33 | 428-9 23 | 647- 24 2 13 0 06-86 2 | 542-5 3 | 429.7 24 | 32-39 || 24 | 611-1 || 24 | 730-1 25 * 25 32-26 || 25 | 588-1 26 2°17 0 | 25 15-14] 2 | 553.4 3 | 423-7 26 |578-5 || 26") 711-6 27 10 16-35 || 12 | 555-1 }| 13 | 421-2 27 23-54 |) 27 |571-8 28 20 13-46 | 22 | 558-6 || 23 | 415.2 28 19-58 || 28 |573-3 |) 28 | 739-8 29 30 10-16 | 32 | 561-7}| 33 | 413-5 29 | 13-16 || 29 | 564-1 || 29 | 746-7 30 40 09-56 | 42 | 559-9}) 43 | 411-3 30 | 07-64 || 30 | 569-7 || 30 | 745-2 31 50 07-31 52 | 559-5 |) 53 | 412-0 31 |583-5 |) 31 | 744-5 *! 32 2 18 0 07-17 2 | 556-6 3 | 413-1 32 07-44 || 32 | 590-3 33 15 08-08 || 17 | 554-3 || 18 | 415-1 33 06-23 || 33 | 597-5 || 33 | 736-1 34 2 19 0 10-13 2 | 557-4 3 | 413-8 34 09-02 || 34 | 616-4 || 34 | 721-3 33 35 16-48 | 35 | 632-9 || 35 | 703-9 36 3.44 0 | 25 20-43 2 | 544-6 3 | 670-9 36 30-94 |) 36 | 633-4 || 36 | 683-8 37 10 13-70 | 11 | 539-3 || 12 | 674-6 37 | 25 50-83 || 37 | 616-4 || 37 | 660-0 38 15 12-11] 17 | 543-3) 18 | 657-8 38 | 26 03-88 || 38 | 589-2 || 38 | 637-2 39 20 16-43 | 22 | 541-5|| 23 | 676-5 39 | 26 13-31|| 39 |551-3 || 39 | 624-6 40 25 16-65 || 27 | 545-6|| 28 | 738-1 40 | 26 15-39 || 40 | 532-2 || 40 | 629.2 41 29 | 551-4 41 | 26 11-76 || 41 | 523-6 || 41 | 690-5 42 30 02-93 | 31 | 563-5 42 | 26 02-37 || 42 |509-8 || 42 | 718-2 43 32 | 582-9}! 33 | 729-3 | 43 | 25 36-49|| 43 |562-7 || 43 | 762-5 44 34 | 578-2 44 24-86 || 44 | 642-7 || 44 | 802-4 45 35 18-40 35 | 708-3 45 21-90 || (out jof field)|| 45 | 845-2 46 36 | 573-7 46 18-08 46 | 877-1 47 37 | 571-9]| 38 | 721-5 47 11-57 47 | 914-9 48 39 | 565-5 48 09-08 48 | 941-4 49 40 15-74 49 09-15 49 | 954-4 50 41 13-43 || 41 | 558-0 * 50 08-95 || 50 | 642- 50 | 954-5 51 42 11-52 || 42 | 556-1}| 43 | 762-9 51 10-00 || 51 | 630-8 52 44 | 549-9 52 07-27 || 52 | 620-8 |) 52 | 944.2 53 45 13-22 45 | 754-2 53 04-53 || 53 | 622-4 || 53 | 935-3 54 46 16-68 || 46 | 540-2 54 05-58 || 54 | 621-9 || 54 | 928-4 55 47 17-15 |) 47 | 530-6|| 48 | 765-6 55 07-72 || 55 |613-6 || 55 | 914-2 56 49 | 530-1 56 10-09 || 56 | 599-4 || 56 | 901-7 57 50 07-64 50 | 767-6 57 07-74 || 57 | 587-0 || 57 | 891-6 58 51 05-99 || 51 | 531-2 58 06-27 || 58 |575-9 || 58 | 883-7 59 52 04-58 || 52 | 530-9 || 53 | 759-0 59 02-39 || 59 |571-9 || 59 | 876-8} 3 7 0 54 | 538-0 3 6 || 0 | 25 00-48]! 0 | 565-1 || 0 | 871.0 1 55 | 04-44 55 | 756-1 *| 1 | 24 57-07 1 | 559-8 1 | 866-3 2 | | 56 | 537-5 2 55-19]| 2 | 565-2 2 | 859-5 3 | 57 | 04-21 || 57 | 537-5) 58 | 749-2 3 54-68 3 | 568-8 3 | 847-1 4 | 59 | 542-7 | 4 55-24 4 |575:8 4 | 827-7 5 3.5 0 04-41 0 | 744-2 5 | 24 58-99 5 | 586-7 5 | 814-2 6 | 1 | 551-7 6 | 25 03-84 6 | 592-5 6 | 802-4 ii ) 2 | 553-3 3 | 723-2 enc 08-68 7 |595-3 7 | 798-4 8 4 | 560-0 8 13-36 8 | 592.2 8 | 798-0 9 5 14:44 6 | 559-2 5 | 712-4 9 16-48 || 9 |579-6 9 | 798-0 10 7 | 558-0 8 | 718-5 10 15-17 || 10 | 576-0 || 10 | 803-4 11 8 13-81 9 | 584-0 a 09-93 | 11 | 579-9 || 11 | 821-4 12 | 10 16-32 || 10 | 583-8) 11 | 736-5 12 02-45 | 12 |594-1 | 13 12 | 592-5 |] 13 | 753-2 Hela 00-84 | 13 | 603-9 || 13 | 826-0 14 13 12-04 || 14 | 603-5 | | | 14 02.45 | 14 | 604-6 || 14 | 820-7 15 | 14 | 25 06-73 15 06-59 | 15 | 606-6 || 15 | 813-9 16 15 24 58-25 || 15 | 619-8 16 10-23 | 16 | 607-1 | 16 | 808-8 17 Birizar. k=0:000140. Bawance. k=0-000010. * See notes on the Aurora Borealis, after the Kxtra Observations of Magnetometers. Dec. 34 74 2m, Arms of the bifilar torsion circle turned from 110° 16/5 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. ExtTRA OBSERVATIONS OF MAGNETOMETERS, DECEMBER 3, 1845. 115 BIFILAR BALANCE BIFILAR BALANCE : 4 BIFILAR BALANCE orrected. Corrected. DECLINATION. Corrected. Corrected. DECLINATION. Corrected. Corrected. is i in.| Se. Div. in. | Mic. Diy. . . in. in, | Se. Div. || Min. | Mic. Div. 25 12-11 559-5 829-5 551-4 833-5 12-16 570-9 835.4 : 0 | 531-8 828-7 07-71 580-1 845-7 520-2 818-2 02-42 604-4 859-4 516-9 808-8 02-52 620-0 861-5 3 | 513-1 800-5 05-22 627-3 857-3 31- 509-4 786-7 10-27 629-0 842-1 554-1 783-2 16-48 628-9 822-9 608-1 792-2 639-8 811-0 615-3 793-2 606-6 804-0 B 597-4 785-5 791-6 595-7 785:3 3) 657-1 789-1 615-1 793-2 615-2 768-6 é 619-8 778-3 5 633-1 750-1 720-5 : 3 | 652-3 669-6 624-6 602-3 706-8 ) 602-1 834-0 B 623-8 882-8 650-6 885-8 é : 628-3 881-5 607-4 854-2 9. 573-4 828-0 ‘ 536-5 817-2 3 | 528-4 843-3 521-4 858-6 503-4 855-4 } 834-2 796-5 771-4 769-2 410-6 774-1 420-9 781-3 436-2 795-2 462-3 797-3 499-2 796-7 524-9 795-3 543-8 797-0 561-7 798-2 571-0 800-6 586-7 597-1 808-8 613-2 790-2 621-0 814-1 623-2 816-5 04-14 625-0 4 | 816-5 04-44 625-0 i 649-5 817-8 02.59 of field) 810-9 798-2 04:64 647-0 792-0 06-16 645-7 797-7 10-47 631-5 802-9 09-26 611-9 815-5 05-69 599-7 827-7 ! 56-74 587-5 839-9 56-74 588-7 844-1 } | 59-32 576-5 837-1 | 3: 57-98 | : 569-7 01-21 18 6 564-0 836-7 13-05 |) BIFILAR. k=0-000140, BALANce. k=0-000010. * See notes on the Aurora Borealis, after the Extra Observations of Magnetometers. lec, 34 7h 30m, he bifilar magnet moving backwards and forwards with great rapidity. Dec. 3474 48m. Arms of the bifilar torsion circle turned back from 107° 3’ to 110° 23’-0, The observations of the bifilar from 74 48™ till ‘47 have been corrected (by — 5°5 sc. div.) to the original reading of the torsion circle. See Introduction, p. xxxii. . 318h 37m, The declination magnet moved westwards from 36™ to 37™. 116 EXTRA OBSERVATIONS OF MAGNETOMETERS, DECEMBER 3—13, 1845. BIFILAR BALANCE Gott. BIFILAR BALANCE Gott. “2 DECLINATION. Corrected. || Corrected. Mean DECLINATION, Corrected. Corrected. Mean DECLINATIO} | Time. Time. Min “J £ Min. | Se. Div. || Min. | Mic. Div. ad. h. Min. st ¢. Min. | Se. Div. || Min. | Mic. Div. Bae Min. 8 Lae 50 | 25 02-62]| 52 | 507-7 || 53 | 567-3] 3 13 7 | 484-5 8 | 484-5 314 55 06-59 || 57 | 521-6|| 58 | 580-2 9 | 492-1 0 08-45 || 2 | 484-8 || 3 | 560-7 10 | 24 52-40} 11 | 491-9 55 | 24 578 5) 12-95 7 | 467-6|| 8 | 554-8 12 | 490-1]} 13 | 487-6] 3 15 0 | 25 02:4 10 09-12 || 12 | 476-9] 13 | 566-8 15 50-04|| 17 | 501-6]| 18 | 487-4 5 | 25 01-2 | 15 | 25 04-14|| 17 | 481-8] 18 | 586-9 20 45-98 || 22 | 502-1]! 23 | 474-5 *| 10 | 24 59-8 | 20.) 24 54-65 | 22 | 511-9}| 23 | 600-0 | 25 49-17 || 27 | 514-4 || 28 | 467-3 20 | 25 02.4 | 25 52-20 | 27 | 502-0|| 28 | 600-0 30 52-70 || 32 | 500-0|} 33 | 448-0] © 25 03-3 30 50-22 || 32 | 507-3]| 33 | 583-8 | 34 | 488-7 : 30 02.6 35 49-74 | 37 | 527-0|| 38 | 572-5 35 53-27 || 37 | 477-8|| 39 | 421-5 35 05:2 40 | 24 57-37] 42 | 533-7 || 43 | 568-5 | 40 54-45 || 42 | 481-9|) 43 | 414-8 40 08-6 45 | 25 03-81 || 47 | 520-4]| 48 | 571-9 45 53-88 || 47 | 485-9|| 48 | 411-1 45 06-1 50 | 25 01-34]} 52 | 489-8 || 53 | 561-3 50 54-18 || 52 | 485-3} 53 | 406-7 50 03:3 55 | 24 57-78 || 57 | 485-7 || 58 | 539-6 55 55-80 || 57 | 474-8 || 58 | 402-7 55 03-2 0 57-34] 2 | 493-7 3 | 529-5] 3 14 0 53-88 2 | 464-7 3 | 401-4] 3 16 0 00-2 5 52-33 7 | 486-7 8 | 526-2 A 5 53-20 7 | 459-6 8 | 399-6 balan 01. 10 53-38 || 12 | 500-6|| 13 | 530-9 | 10 50-92 || 12 | 472-0|| 13 | 399-8 10 03-4 15 53-88 || 17 | 504-8 |) 18 | 536-1 15 49-51} 17 | 477-2] 18 | 397-5 15 02 20 57-28 || 22 | 498-5 |) 23 | 540-9 20 49-37 || 22 | 473-4|| 23 | 384.9 20 03-6 25 | 24 58-82|| 27 | 495-9 || 28 | 537-5 24 | 482-6 25 03 30 | 25 00-40|| 32 | 506-7 || 33 =r 25 | 24 56-30] 27 | 471-2|| 28 | 375-2 30 07 35 | 25°01-72|| 37 | 496-4|| 38 | 537-9 29 | 474-8 45 07-1 40 | 25 57-51]! 42 | 468-1]| 43 | 486-6 30 | 25 03-20|| 32 | 483-3 || 33 | 379-5 3) 17 0 05° 45 | 25 02-08 || 47 | 438-4 || 48 | 452-7 35 | 25 05-32) 37 | 470-0|| 38 | 380-4 -_—— —_ 50 | 25 02-69|| 52 | 454-3 || 55 | 457-3 39 | 462-3 13 4 0 | 25 14-2 55 | 25 04-95]! 57 | 460-9 || 58 | 520-4 40 | 25 01-41 |) 41 | 448-1 10 19: 5 | 24 43-52 7 | 533-2 8 | 517-7 42 | 451-8]| 43 | 382-7 15 16: 10 | 24 44-50|| 12 | 541-8) 13 | 505-5 44 | 456-9 21 09: 25 | 24 57-07|| 27 | 516-2 45 | 24 58-251! 46 | 463-0 25 07 40 | 25 03-97 || 42 | 461-9] 43 | 509-7 47 | 471-0}| 48 | 392.2 30 07: 50 | 24 54-59 || 52 | 477-0]| 53 | 514-6 49 | 477-9 35 08 0 50-93 2 | 457-7 3 | 489-4 50 | 25 00-00 |} 51 | 488-8 40 084 5 50-95 6 | 476-4 Birimar. k=0:000140. BALANCE. k=0:000010. * See notes on the Aurora Borealis, after the Extra Observations of Magnetometers. BALANCE ed. Corrected. Min. 53 Mic. Div. 414-4 58 | 421-7 3 | 430-8 8 | 419-8 402-2 384-9 370-9 363-2 361-3 363-6 364-2 362-9 370-1) 13 7 3 | 383-1 8 | 393-1 401-9 418-2 428-8 432-1 431-8 422-5 3 | 444-0 13. 8 13 3 | 485-1] 13 11 495-9 502-3 499-3 497-7 494-7 492-2 492-1 15 7 15 8 DECLINATION. Min. | ° 4 50 | 25 12-04 0 11-98 15 14-26 25 13-66 5 06-32 30 07-40 35 | 25 01-54 40 | 24 48-36 41 47-69 45 47-69 50 48-50 55 48-90 9 48-45 5 52-94 10 | 24 57-04 20 | 25 00-74 45 06-90 0 | 25 05-85 0 | 24 50-78 5 48-77 15 51-05 30 54-82 50 58-49 0 | 24 59-84 0 | 24 49-22 5 49-15 10 49-88 20 54-75 30 | 24 59-46 0 | 25 06-39 Min. 52 17 27 32 37 BiriLak Corrected. Se. Div. 514-4 2 | 535-2 538-2 540-4 6 | 541-0 520-7 508-9 535-2 534-7 534-9 2 | 543-9 7 | 545-6 527-2 527-3 2 | 533-2 2 | 526-5 7 | 529-8 528-1 517-6 519-5 2 | 521-0 2 | 520-6 7 | 520-3 519-3 523-4 529-6 533-1 535-5 |) 2 | 535-5 BALANCE Gott. BIFILAR BALANCE Corrected. Mean DECLINATION. Corrected. Corrected. Time. | Min. |Mic. Div.] 4. h. Min.| ° 5 Min. | Sc. Div. |) Min. |Mic. Div. 53 | 492-3] 15 9 0 | 24 46-21 2 | 528-7 3 | 442-0 3 | 492-8 5 43-15 7 | 535-6 8 | 441-1 18 | 492-6 10 43-29 || 12 | 551-9]| 13 | 438-2 28 | 491-0 15 49-54|| 17 | 555-6|| 18 | 437-0 7 | 494-6 20 | 24 59-53 || 22 | 545-0]| 23 | 439-5 33 | 506-8 25 | 25 04-17) 27_| 532-8 || 28 439-7 38 | 517-1 30 04-04 || 32 | 528-5 || 33 | 439-5 40 02-32 || 42 | 540-1] 43 | 434-7 43 | 511-6} 15 10 0 05-62 2 | 538-6 3 | 430-6 15 11 0 05-63 2 | 542-7 3 | 428-2 48 | 508-6 20 01-88 || 22 | 535.6]| 23 | 429-8 53 | 509-5] 15 12 0 07-31 2 | 544-8 3 | 425-6 58 | 509-1 _—_———— | | 3 | 5041] 16 7 0 | 25 00-67 2 | 538-3 3 | 438-0 8 | 510-6 10 | 24 54-82|) 12 | 558-4]| 13 | 432-4 15 | 24 57-71|| 17 | 558-7|| 18 | 433-8 23 | 495-6 20 | 25 01-81 || 22 | 552-6 || 23 | 434-7 48 | 488-1 35 04-95 || 37 | 546-0]| 38 | 432-5 3 | 482-7] 16 8 0 02-93 2 | 544.0 3 | 432-2 3 | 470-9 - $—— —| 8 | 468-5] 18 6 0 | 25 00-98 2 | 551-2 3 | 451-3 18 | 466-5 10 | 24 59-73)| 12 | 550-5]| 13 448-7 33 | 462-9] 15 7 0 | 25 08-77 2 | 543-4 3 | 444-6 53 | 452-1] 18 8 0 | 24 59-83 2 | 547-5 3 | 440-4 3 | 444-0 10 | 25 03-81|| 12 | 539-0|| 13 | 439-9 —_ 35 05-32 || 37 | 542-0]! 38 | 438-6 3 | 459-3] 18 9 0 06-95 2 | 541-7 3 | 439-3 8 | 461-1 —||——_|—_—_—_ —— 13 | 463-9] 31 9 0 | 25 00-53 2 | 537-9 3 | 418-6 23 | 465-4 10 00-13 || 12 | 541-3]| 13 | 419-2 33 | 463-7 30 03-50 || 32 | 534-4 || 33 | 422-9 3 | 450-1] 31 10 0 07-31 2 | 542-0 3 | 416-7 Birmar. k=—0-000140. BALANCE. k=0:000010. . 134 6h 20m, y throughout the night. The instruments read nearly as at 64 0™. 84 104 15™—30™. Magnets moving very little 254115 20", Declination magnet moved eastwar: and steadily in one direction. ds slowly and regularly from 0™. The magnets, especially the declination magnet, were . AND MET. ops., 1845. 118 Nores To THE Extra OBSERVATIONS OF MAGNETOMETERS, JANUARY 0—9, 1845. NOTES ON THE AURORZ BOREALES SEEN AT MAKERSTOUN. Jan. 015 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 7 10. Faint auroral band 8° high. 20™, Slight pulsations in the aurora, 8 5. Fine auroral arch, about 10° altitude at the vertex. 8 15. Measured and found the summit of the arch 155 altitude, the one extremity nests the horizon a N. 45° E., the other about W. 13° N., but this extremity is so diffuse that the measure is b rough. < 8 35. The aa nearly meets the horizon at NE. ; faint and diffuse to W. 55™. Triple arch; the middle one has its greatest altitude 29°; brushes below the arches to NNE. 9 5. The aurora ina 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. q 9 19. Aurora in two arches, one passing 5° or 6° N. of zenith, the other 20° high; 40° of sky between the arches. 24m, 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. 22° S.,. of E. extremity of arch E. 18° N. Altitude of lower arch 23°. 45. W. portion of upper arch 60° i te length, split into two; lower arch bright to NE. 49™, Pencil riser 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™, 654™, The upper extremity of the W. pencils attains the altitude 29° above S. 24° W. 65™. Lower arch very steady and complete azimuths of the 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 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 rarel, 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. 134. Meteor with reddish, sparky tail, from 37° to 27° of altitude above E, 35° 8., 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. 18™, 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. 223. The arch passing to S. of the zenith, has split into two portions ; the azimuths of the extremities of the lower portion are W. 33° S., and E.13° 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. { 32. Still bright to SW., but the arch is nearly away. 86™. 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 ; faint on SW. horizon ; cirro-strati rising to N. 4 55. Rapid pulsations and streamers. , 11 3. Pulsations to an altitude of 50°. | | Nores to THe Exrra OBSERVATIONS OF MAGNETOMETERS, JANUARY 9—24, 1845. NOTES ON THE AURORZ BOREALES SEEN AT MAKERSTOUN. h. ™. d. . am. 911 7. Streamers and pulsations from an amorphous mass to N. 8™. Rapid pulsations ; aurora in patches 12 13 27. 52. 10. 10. 10. 34. 46. 10. 10. 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. 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. 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. Aurora on the whole brighter ; patches to NE.; the mass of cirro-stratus still exists, but is more spread out towards the NW. 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. Obscured to NNW. by cirro-stratus ; pulsations among the patches of aurora. Patches appearing and disappearing 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. Aurora fainter ; many bands stretching from NE. to W by S., 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. As before, the bands rather more persistant. Much as before ; lateral pulsations to NE. among bright patches ; brushes. A series of broken bands from NE. to altitude of 70°—90° above N.; not many pulsations. A faint belt can be traced from WSW. to NE., altitude 60° above NNW. ; aurora generally fainter. 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. Cirro-stratus and cirri over the aurora, and in no other part of the sky. No pulsations can be perceived; aurora fainter. 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. Faint streaks and patches over N. sky, and to 15° S. of zenith. Scarcely any of the aurora can now be seen for clouds ; no patches are seen near the zenith. 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. Sky nearly covered with 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 135, he found the magnets considerably disturbed. Curi 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. 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.) Large lunar corona. Auroral light to N.; doubtful, from moonlight. A break in the clouds, to N., shews auroral light. Cannot detect any appearance of aurora, probably on account of the bright moonlight. Cirri in thin bands, much like those described previously (Observations for 1844, Nov. 23, page 325), as apparently connected with aurora. 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. 119 120 Norves ro THE Extra OBSERVATIONS OF MAGNETOMETERS, JANUARY 26—FeEpruary 1, 1846, NOTES ON THE AURORA BOREALES SEEN AT MAKERSTOUN. Jan. 26 13 10. 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. 25. 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 cirri and moonlight. 14 10. Cri 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 eirri, 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 141 they had arrived at the moon and broken the halo into bands; they had thus moved bodily abou 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. 15 10. 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 irregularly, by fits or jerks, the vibration often ceasing, or nearly so, a . 30™, W. portion of halo visible; many patches of cirro-stratus or seud risen on NW., N. ané 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, Jan. 28 7 35. Light seen through the clouds to N. 8 30. Auroral light seen through the clouds to N. 50. As far as the aurora can be seen it appears to be quite amorphous ; no pulsations or streamers. Jan. 29 7 5. Auroral light to N. 30™, Auroral light becoming fainter. Jan. 30 10 10. There seems a faint auroral light among the haze to N., but it is doubtful. Feb. 112 4. 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 haying 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 pulsation 12 20. A most strange aurora; one portion extends in a bank along the horizon from SW. to NE, to an 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-tenth of the sky covered by aurora, and as much to §. 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. 36. Very bright pulsation ; meteor shot rapidly towards the zenith from 60° altitude above NE. ; streak to E. still bright ; patch to SSW. with pulsations ; all the stars distinctly visible through the aurora, 45. Muchas before ; the Pleiades are immediately out of the W. bank, as they have been throughout th whole time. 50. 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. 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 60™ (which, it is believed existed before that minute), passing immediately below the Pleiades seems very permanent in it form and relation to the bank of aurora, The W. bank was on the whole brightest, although ver’ variable in its brightness throughout. The luminosity of each mass was rather uniform, excepti 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. bo or Noves 10 THE Extra OpserRvATIONS 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 ground 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 ease durmg milky aurora; in Ea haze, however, the stars become blurred even when the haze is thinnest. October 1848. B.] Reb. 5 8 5. Bank of auroral light to NNW. like strong twilight. i 30. Aurora brighter, and extending rather higher. t 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 ba black streak of cirro-stratus there. 14™, Arch quite broken; a number of bundles of pencils ; a 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 iq number of very faint streamers. 29™. Much as before, several small patches of cloud near N. fou 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" 10™ h 3 were made by Mr Welsh at the Observatory; the following were made by myself at my own ba residence, about 300 yards from the Observatory. | q 13 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 4 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. I do 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 1 ae. beams seen at sunrise lying nearly in the magnetic meridian. Meteorological Notes, Feb. 5420. ie 7 14 5. Cirrous clouds like cirrous haze cover the greater part of the sky, rendering the stars dim, especially 1% to S, H 10. Ona more careful examination the sky seems covered with the milky aurora, as seen on February | Ap, 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. a 122. Noves vo THe Extra OpservATIONS OF MAGNETOMETERS, FesruARY 7—Manrcu 7, 1845, NOTES ON THE AURORZ BOREALES SEEN AT MAKERSTOUN. ad bh. om: Feb. 7 14 15. Pulsations without doubt, the wedge of pure sky pointing nearly NNE. as on February Ist; quent pulsations to NE., and especially on the edges of the loose cirro-stratus to NE. Very fine milky aurora; nearly as distinct as on February Ist, 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. Aurora much off; stars very clear and distinct; very faint aurora now; very faint pulsations t neither would have been detected unless carefully watched. Much as at 40™; most distinct about NNE., where the point of the wedge of sky is still well seen Very faint ; as before. Bright again with pulsations ; nearly the whole sky covered. An amorphous mass of cirrous cloud on SSW, hori izon, 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. Faint again, with pulsations around. The cloud to SSW. has extended into long strips of cirrus ; radiating from that pot, 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. Idem. Overcast ; pulsations to NNE. ? Loose, chequered cirro-cumuli to 8. (B.) A very faint auroral bank, 5° altitude. 25™. Aurora as before ; very faint, sky quite clear, and no moonlight. The auroral light can with difficulty be detected. The aurora, which has been very faint, was now broken into bundles of streamers some of them reaching to an altitude of 20°. A low indistinct arch, crown about N by W., altitude 5°; a few faint streamers to NNW., reaching to an altitude of 25°. Arch from NE by N., to NW by W., a few pencils at the eastern extremity. Flat arch about 7° altitude. 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. , 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 i 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 patch 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.) 10 0. Faint streamers seen to NNW. Feb. 2811 0—30, The sky seems milky all over, with a slight appearance of radiation from N by E. ; it seems pro: bable that thisis milky aurora. There is rather more light to N. than elsew here. Cannot be s ur that there are any pulsations. There are dark-looking patches (of cloud?) to NW., through whose edges at least stars are visible. 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 S by W., sky milky as before; some cirrous haze. 14 4. Cirri with cirrous haze, cirri radiating from about 8. and N. Faint auroral light to N. remarked that the character of the disturbances on the nights of milky aurora has been the sam March. 7 14 10. Clouds cleared off from zenith, and to an altitude of 45° above NE., where the sky seems milky lighter than nearer the zenith ; cirro-cumulous clouds to NW. are very black, and seem lyin: a milky sky. Speck of light near horizon at NNW. At the edges of the clouds the sky seen 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-) 123 There is little doubt there is an aurora; along withit, 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. Cirrous streaks within 10° of zenith. 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. Auroral light to N.; rendered faint by the moonlight. 11> 10™ and 125 10™. Auroral light. 13% 10™. Faint auroral light. 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. Aurora not well marked on account of the bright moonlight. Clear to N.; sky very milky near horizon. 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. Auroral light to N,? seen above cirro-stratous scud; doubtful, however, from moonlight. Sky milky ; the moon projects the shadow of the clouds in the air. Faint aurora? Stormy about 12>. Faint auroral light to NNW.; sky milky. Aurora rather brighter, brightest near N.; pulsations ? 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. 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. Aurora faint. Vivid aurora, with, large, broad and persistent streamers. 26™, Auroral arch about 35° altitude, with pencils inside the arch, very vivid. 33™. Arch irregular, continuous and rapid pulsations, streamers, &c. 38™. Arch broken and diffuse, with slight variation, few streamers. 42™—43™. Arch flat, 15° (?) 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. 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. 18 5—15. A long strip of light above the sun (E by N.), like the sun reflected from much rippled water, cirri radiating from NNW. (magnetic north.) 11 5. Milky-like to NNW. Aurora? 11 15, Faint auroral light to N. / 13 10. Idem. 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 24°, becoming less near the horizon; a diffuse auroral light to northward. 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. 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 10 THE Exrra OpservaTions OF Macnerometers, Aucust 29—NoveEMBER 17, 18465, NOTES ON THE AURORA BOREALES SEEN AT MAKERSTOUN. . m. 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. } 561 || 40-6 | 39-1 | 1-5 ||0-3 |0-3 | 13 |} 12:—:—]} 9-0 Id. ; id. 553 || 40-0 | 37-9 | 2-1 || 0-4 [0-3 | 14 9-9 || Cirro-stratous seud ; cirro-cumulous scud. 29-526 || 38-8 | 37-4 | 1-4 ||0-2 |0-0 | 13 10-0 || Clouds much denser. 502 || 38-5 | 37-2 | 1-3 || 0-1 |0.0 10-0 || As before. 494 || 38-6 | 37-3 | 1-3 ||0-1 | 0-0 10-0 Id. 480 || 38-0 | 37-0 | 1-0 || 0-0 | 0-0 8 10-0 Id. 460 || 38-6 | 37-3 | 1-3 || 0-0 | 0-1 | 12 9-8 || Clouds broken ; stars dim. 448 || 37-6 | 36-4 | 1-2 ||0-1 | 0-0 | 12 9-8 Td. 438 || 37-8 | 36-4 |1-4 | 0-1 |0-1 | 10 9-0 Td. 434 || 37-5 | 36-5 |1-0 || 0-1 | 0-1 | 25 9-9 Id. 427 ||36-8 | 35-9 |0-9 || 0-1 |0-0 | 18 || —:16:—}| 9-8 || Broken cirro-stratous scud. 442 ||36-7 | 35-8 |0-9 || 0-2 |0-2 | 12 || 15:—:—} 8-0 || Seud; broken cirro-stratous scud. (0) 448 || 37-2 |35-8 | 1-4 || 0-6 |0-2 | 12 2-0 || Cirro-strati; cirro-stratous scud round horizon. (oO) 441 ||37-5 | 36-3 | 1-2 | 0-4 |0-4 | 15 2-0 || Bank of dense cirro-strati round horizon. (0) 442 || 39-6 |37-8 | 1-8 0-5 |0-1 | 16 | 13:13:—}) 8-5 || Send: cirro-cumuli; cirro-strati. 439 || 42-4 |40-2 | 2-2 ||0-3 |0-1 | 14 | 10:—:—|| 6-5 Td. ; id. ; id. (a) 439 ||41-4 | 39-2 | 2.2 |/0-1 |0-1 | 30 || 11:—:— 9-5 Id. ; id. ; id. 452 || 40-4 | 38-6 | 1-8 |/0-0 | 0-0 | 27 || 12:—:28]| 7-5 Id. ; finely mottled cir. to W., lying NW. and WSW. 470 ||37-0 | 36-2 |0-8 || 0-2 |0-1 | 17 10-0 Id. 484 || 38-0 | 36-8 | 1-2 || 0-1 |0.0 10-0 Id. 504 || 35-8 | 35-3 |0-5 ||0-0 |0-0} 8 9-0 || Watery cirro-cumuli; irregular lunar corona. } 519 || 33-3 |33-0 | 0-3 || 0-0 | 0-0 —:26?:—|| 6:5 tay: id. > 543 || 30-0 | 29-7 | 0-3 || 0-1 |0-0 | 20 0-5 || Thin cirri; sky milky ; lunar corona and halo. »)) 559 || 28-5 | 28-0 |0-5 || 0-1 | 0-0 | 18 0-0 || As before; sky very milky. 579 || 28-0 | --- «+» ||0-0 | 0-0 0-3 || Band of cirri to S., very thin haze. »») : 597 || 28-0 | 28-4 | --- |/0-0 | 0-0 | 18 0-2 || Cirri and cirrous haze. 3 || 29-609 || 28-1 | 28-6 | --- ||0-0 | 0-0 | 18 0-5 || Cirri and cirrous haze. 4\| 625 || 27-6 | 28-0 | --- ||0-0 | 0-0 0-3 || Cir.-cum. to W., streaks of cir. and cir. haze to N. }- 649 || 27-0 | 27-2 | .-- ||0-0 | 0-0 | 20 0-0 || Hazy on horizon. 666 || 25-8 |}26-0 | -.-. ||0-0 |0-0 | 18 0-0 Id. _ 675 || 25-7 | 25-8 | --- || 0-0 | 0-0 0-0 || Hazy, stars dim. 695 || 28-4 | 28-1 |0-3 | 0-0 | 0-0 | 18 5-0?|| Cirrous haze over the sky. 719 || 29-1 | 28-8 |0-3 || 0-1 |0-0 | 20 10-0 || Dense cirrous mass ? 728 || 30-5 | 30-2 |0-3 || 0-1 |0-0 |18v. 10-0 Id. 744 || 30-8 |30-3 |0-5 ||0-0 | 0-1 | 21 10-0 Id. 760 || 31-5 |31-2 |0-3 || 0-1 |0-0 | 20 10-0 Id. ; fog, objects invisible at } mile. 768 || 31-9 |31-7 | 0-2 || 0-2 |0-.2 | 24 10-0 Id. ; dense fog, objects invisible at } mile. 772 || 32-2 |31-9 |0-3 ||0-1 |0-1 | 17 10-0 Id. 1 762 || 31-6 |31-6 | --. ||0-2 [0-1 | 17 10-0 Td. 2) 740 |/31-0 |31-2 | --. 10-2 |o-1 | 21 10-0 Id. 1 mile. 3]| 741 || 30-4 |30-3} .-. ||0-1 [0-1 0 5-02 Id. id. 755 || 29-8 | 29-8 | -.- | 0-2 |0-0 | 22 || —:22:—} 7-0 || Cirro-cumulous seud ; cirri; fog clearing off. 758 || 28-1 128-0 | -.. ||0-1 |0-0 | 16 2-5 || Stratus; cirro-strati; cirri. ») 749 || 26-2 | 26.0 | 0-2 ||0-1 10-0 | 20 2-0 Id. ; id. ; id. ; lunar corona. ») 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 ons 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. 2N WIND. Maximum force in Sky clouded. — 7 ww IN HE SE eRe HOR HO. NWCNMAWOAGAANOS OW: 0 1 2 3 4 4 6 7 8 9 WhRHODSCOHWAHNWAhHOSHHAGASG AIK SAGTIWN Hee eH HOD 171 29-120 I SH eB ED ENN NW WWN EE eee K CORR SB ee eB ee eR eR eR Oo to a Loose misty scud ; fog gone off; faint halo. Id. Seud. Id. ; thin haze. Cirro-cumulous scud. Thick scud. Thick seud. Seud ; cirro-strati. Id. ; Td. ; Id. ; Td. ; Td. ; ha: Loose cir.-cum. ; cir.-str.; cirrous haze; clouds red. Id. ; id. ; id. Id. ; id. ; id. Td. ; id. ; id. Watery cirri; masses of cirro-strati; cirrous haze. Patches of seud ; cir.-str.; loose circum. ; woolly cir. | Nearly as before. ; Id. Td. Seud ; cirro-strati. dss id, Id. ; id. Id. ; id. Cirro-cumulous seud. Watery cir.-cum. ; cirri; cirrous haze ; lunar corona. Id. ; id. Watery cirro-cumuli, denser. As at last hour; sky to E. Id. Cirro-strati; thin cirri. id. id., or cirrous haze. Send ; cirro-strati. dense homogeneous cirro-strati; rain'"® cirro-strati breaking up. id. cirro-strati ; cirri. loose ragged cumuli; cirro-cumulous seud. .; curmuli to E.; cirro-strati; cirri. As befere. || Send ; cirro-strati; cirri. Id. ; id. ; drops of rain. || Watery cirro-cumuli ; sky milky; lunar corona. Id. Id. Cirro-stratous scud ; cirri. Cirri ; cirrous haze; faint lunar corona and halo. | Cirrous haze over the sky ; lunar halo. Id. ; halo disappeared. { Sunday—variable. a.m. Cirro-cumulo-strati. ; snow. P.M. Dense, cirrous mass ; snow and slee The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, E.=8, S.=16, W. = 245 motions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Jan. 174 12%. Observation made at 12 12m, Hourty METEOROLOGICAL OBSERVATIONS, JANUARY 19—21, 1845. THERMOMETERS. WIND. Sky Maximum clouded. : Species of Clouds and Meteorological Remarks. Dry. | Wet. | Dift.|) force in |Prom 29-5 | 29-3 | 0- . - . Cirro-cumulo-strati ; cirro-strati. 28-9 | 28-7 | 0- : : . Id.; id. ; 27-5 | 27-5 | --- || 0- ’ B 52 i 27.3 | 27.3 | »-- ||0- ‘ - 25-7 | 25-7 ae H io a an 25-8 | 25-7 | --- D p . Id. ; 26-0 | 26-0 . 5 p . Cirro-strati near horizon.* 28-7 | 28-3 . . : Woolly cirri; cir.-strati; cir. haze; loose cum. to SE. 26-6 | 0- 7 . - Woolly cir. and cir.-str.; scud on the flank of Cheviot. 26-2 |0- : D :—: . Woolly cirri; cirro-strati.* 29-7 | 1- D . p : ‘ Loose woolly cirri, as before. 30-8 | 1: I» 5 D Haze on horizon. 32-8 | 2+ ‘ . : Cirro-strati to NE. 35-9 |2- * - b : : . Loose cirro-strati, 2" 30™ Rainbow. 36-1 | 3- : : 5 Id. ; loose nimbi and shower to N. 33-5 | 1- . . . Loose cumuli and cirro-strati. 32-4 | 2. : : : Cirro-strati and thick cirrous haze on horizon. 32-2 | 0- : : : Id. on N, horizon. 31-7 | 2- : : : Scud : cirro-strati. 31-3 | 1: : . : Cirro-strati on SE. horizon. 31-2 | 2 : - j : Td. SE. and N. horizon. 34:0 | 2-8 || 0- 5 : Id. to E. 34.0 | 3- if i :0: . Watery, loose cirro-cumuli; lunar corona.* 35-2 | 3- : . (Ie : Cirro-cumulo-strati. 35-3 | 3+ . : SOM: : Cirro-cumulo-strati; sky in zenith. 34:3 | 2- . B * aOR: . Pe cirri ; faint lunar corona.* 31-8 | L- : : : v3 id. 32-7 denser. 33-5 id. 33-3 32.8 31-9 30-3 29-9 31-0 32-8 34-3 35-5 yur yy vyvYy vyuvyvyYYy O0O00000 Id. Scud : clouds broken. Id.; cirro-cumulo-strati; cirro-strati. Loose cirro-cumuli ; cirro-strati. Fleecy, woolly cirri; cirro-cumuli; cirro-strati. Id. Cirro-cumulo-strati ; cirro-strati; cirri. As before. Cirro-stratous seud ; wavy cirro-strati; cirri. Id.; id. Id. ; id. Seud : cirro-stratous scud ; red tinged cirri to W. Misty scud: thin cirro-strati and cirri. Chiefly smoky scud. Id.; cirro-strati ; lunar corona. Dense, nearly homogeneous mass of seud. Nearly as before, but varying. Nearly homogeneous. Id. 1-6 1-5 1-2 1-2 1-3 0-4 0-6 1-0 eosssosseosc i Oo) Loose sceud: cir.-cum.; cir.-str.; coloured lunar cor. }- Ths cir.str. ; thin haze, causing a col. cor.) Homogeneous; drops of rain. Id. ; id. Thick scud and cirro-strati. Id. Smoky seud ; cirri. Td. 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 of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. an. 204 3! 40m. Heavy showers of snow and sleet with strong wind. See additional Meteorological Notes after the Hourly Meteorological Observations. 144 THERMOMETERS. | WIND Gott. Baro- || Mean METER Maximum Time. |] at 82°. || Dry. | Wet. | Dig. || foree in 14, ices d. h. | in. C S a lbs. lbs. 21 21)| 29.821 | 43-1 |42-3 |0-8 ||0-1 | 0-2 22|| 825 || 42-3 |41-8 | 0-5 | 0-3 |0-1 23 834 || 41-4 |41-1 |0-3 || 0-2 | 0-1 22 0]| 846 ||45-3 |43-7 | 1-6 || 0-2 | 0-1 1|| 846 ||46-0 | 43-8 | 2.2 || 0.4 | 0-2 2\| 823 | 46-4 | 44.3 | 2-1 |0-8 |1-0 3]| 815 ||45-9 | 43.7 | 2.2 |10.6 | 0-6 4 824 || 44-6 | 42.2 |2.4 11-1 |0-5 5 795 || 41-7 |40-2 |1-5 ||0-8 | 1-1 6|| 786 | 41-0 | 39-9 | 1-1 || 1-6 | 0-9 7 788 || 41-8 | 40-5 | 1-3 || 1-2 |0-6 8 780 || 42-6 | 41-3 | 1-3 || 0-8 | 0-1 9 791 ||43-1 |41-7 | 1-4 10-9 |0-8 10} 790 | 43-0 }41-7 |1-3 | 1-6 | 0-6 l|| 781 ||42-2 |41-2 | 1-0 |/0-8 |0-2 12] 767 |) 42-8 |41-6 |1-2 0-5 | 0-2 13 || 29-737 || 41-4 |40-2 | 1-2 ||0-9 | 1-6 14] 701 ||39-5 | 38-7 |0-8 |/0-5 | 0-1 15} 660 | 42-1 | 40-8 | 1-3 || 0-0 | 0.0 16 593 || 44-7 | 43.6 | 1-1 ||0-7 |0-6 17|| 556 46-1 |45-1 | 1-0 }] 1-5 | 1-1 18|) 529 || 46-3 |45-9 | 0-4 111.6 | 1-1 19] 498 | 48-6 | 48.0 | 0-6 || 1.2 | 0-7 20)| 478 || 48-8 |47-8 |1-0 || 2-9 | 2-6 21 460 | 49-2 |47-9 |1-3 || 2.3 | 1-4 22 439 || 49-7 |47-5 | 2.2 || 2.9 | 2.3 23|| 418 |/50-0 | 47-1 | 2-9 || 4-1 | 5-0 23 0|| 404 |/51-1 | 46.9 | 4.2 16-3 | 4-2 1} 387 | 50-0 | 46.6 | 3-4 | 6-3 | 3-4 2\| 360 || 50-0 | 46.7 | 3-3 || 4.3 | 4.2 3} 318 || 49-8 | 46.8 |3.0 || 4.6 |3-7 4 297 || 49-3 | 46-4 |2-9 || 4.5 | 5-2 5 286 || 48-9 | 46.4 | 2-5 |) 5.2 | 3-5 6 274 || 47-8 | 45.8 | 2-0 ||3-6 | 2.8 W 279 ||48-1 | 46.0 | 2-1 || 2.7 | 2.7 8 260 || 47-6 | 45-8 | 1-8 || 3-2 | 2.5 9 251 || 46-5 | 45.8 | 0.7 || 2-2 |0.8 10 233 46-0 | 44.7 | 1-3 |] 1-3 | 1.3 11 224 || 45-7 | 44-3 | 1-4 |] 0-8 | 0-4 12 210 | 45-5 |44.0 | 1-5 || 0-5 | 0.5 13 || 29-195 || 45-3 | 44.0 |1-3 ||0-2 | 0.2 14 168 || 44-8 |43-7 | 1-1 ||0-3 |0-0 15 160 || 44-1 | 43-3 |0-8 | 0-0 |0-0 16 154 || 44-1 | 43-7 |0-4 || 0-1 | 0-0 17|| 146 || 43-8 | 43-4 |0-4 110-0 |0.0 18 142 || 43.7 | 43-3 |0-4 ||0-0 | 0.0 19 147 || 44.0 |43-2 |0-8 ||0-0 |0-1 20 186 || 43-3 | 42-4 |0-9 10-1 | 0-1 21 242 || 38-7 | 38-0 | 0-7 || 1-8 | 1-5 22 290 || 37-4 | 36-2 |1-2 |] 1-5 | 0.6 23 340 || 37-7 | 36-7 | 1-0 || 0-9 | 0-7 24 0|| 380 || 39-0 | 37-8 | 1-2 ||0-9 |0-9 ] 414 |/41-0 | 39-2 | 1-8 1-1 | 1.7 2 439 || 42.3 | 40-0 |2-3 | 1-3 | 1-3 3 477 || 42-9 | 40-0 | 2-9 || 1-0 |0.7 4 516 || 43-2 | 39-7 |3-5 || 1-2 |0-7 Se. : C.-s. :Ci., Clouds, moving jd 21: 20: 20: 20: 31: from 724 Hovurty MErTEoRoLOGICAL OBSERVATIONS, JANUARY 21—24, 1845. Sky clouded. Species of Clouds and Meteorological Remarks, Smoky seud ; cirrous mass. | de; wo. cir, lying from NE. to SW.; halo, Woolly, mottled, and linear cirri; solar halo. | Smoky seud, various cirri radiating from SW. Td: cirro-strati ; cirri. Id. ; id. ; id. ; cirrous haze; halo, &€ Send ; woolly cirrri lying SW. to NE. ; cirro-strati. @| Ia. ; id. lying Sby E.toNby W. id. @ like id. Seud ; cirri. Cir.-str. ; cir. and cir. haze; faint lunar halo and cor. Seud; cirri; cirrous haze ; halo and corona. ¥} Thick seud. Id. Id. Seud ; cirro-strati; cirri. Scud. ; mass of cirri; lunar halo. Thin, watery cirri. Thick seud ; cirro-strati. iehR rain®, Id. ; rain?®. Ihe rain”, Id. ; rain”? ; wind in gusts. Td. Td. Seud ; cirro-strati. Tes id. ; cirri. Id. ; id. ; id. Id. Id. ; rain to E.? Td. Id.; rain to SE. Thick seud. Seud ; cirro-strati; cirri; drops of rain. Id. ; id. take id. ; rain, GES id. ; rain?®, Id. ; id. ; rain”. Id.; watery cirrous haze; no halo visible. Cirro-strati ; watery haze; faint halo. Cirro-strati; gradually becoming denser; broken to S. Cirro-strati, or cirro-stratous scud, As at 13"; particles of rain. Td. ; rain”. Seud ; cirro-strati. Id. ; id. ; drops of rain. Gas id. ; rain, Id. ; id. ; rain?. iGhe ids rain. Id.; cirrous mass; rain’. Td,; id. Seud on §. horizon ; dense cirrous mass. Smoky scud round horizon ; cirro-strati. Cirro-strati; cirri ; snow on Cheviot. } Patches of scud; cirro-strati; woolly cirri. co) Cumulo-strati ; cirro-strati; cirri. 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, Se. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. : The smoky scud seems to have a sort of internal motion. Jan. 224 3h, Hovurty METEOROLOGICAL OBSERVATIONS, JANUARY 24—27, 1845. 145 THERMOMETERS. WIND. eee Maximum Sky ETER . - a 32°. Dry. | Wet. | Diff force in [From clouded. Species of Clouds and Meteorological Remarks. in. 29-542 a a : -5 || Cumulo-strati; cirro-strati; cirri; clouds tinged red. 570 : . o s : Cirro-strati; haze on E. horizon. 592 5 s 5 B H : Moon risen very orange-coloured. 615 . . ; Yi Ks : Streaks of cirri to N. 635 C . H A = - Cirri to E. 648 . . E Y ° . Cirri to SW.; scud on Cheviot. 661 * B 1) 0 . 7 5 ° Bands of cirri lying NW by N. to SW by S. ; patches of scud. 669 : h : : : : Bands of cirri: portion of a halo. 29-662 : ! E H : Cirri ; cirro-strati. 663 ‘ . : -6 | 0- c Cirri and cir.-str. on hor. ; patches of scud to NW. 654 . D E b :—: : Sheets of thin cirro-strati and cirri. 629 . a o B * . Cir.-cum. ; sheets of cir.-str. ; cir, haze; lunar halo and corona. 609 d : - . D :28: — . Seud ; cirro-cumuli; cirro-strati. 575 : 5 . D . . Thick scud and cirro-strati. 539 E . : , ; 228: . Scud ; watery cirrous haze and cirro-strati. } 512 - : . D . : Cirro-cumulous scud; id. ; tinged red on SE. 494 . 5 F | . 7:20: E Id. 435 : - : . : 23: : Loose, watery scud ; cirro-stratous scud; cirrous mass. 416 : . H : : 224: . Id. ; id. 386 ; ; i i “i 224: FE Id. ; cirro-strati; cirro-cumuli; wild sky. 362 . : : . . 224: : Id. ; id. ; id. 345 : 301 269 250 202 156 109 29-050 28-983 933 f 944 23) 28-918 || 45-7 29-026 || 40-2 306 || --- 29-302 || 29-9 287 || 28-6 240 || 27-8 175 || 28-6 120 || 30-5 WwyysYy yryrvYyyvY pe, Paw wrrownm= id. id. Loose scud; dense homogeneous cirro-strati. Occasional rain”>—! since 64, Rain 0%. Id. Id. Rain 1 Misty scud ; cirro-strati; cirri Rain 02. Patches of scud; woolly cirri; cirro-strati slowly. Cloudy throughout the day, occasional © and flakes of snow, P.M. ; La 0 00 et et 7 N COOK AHRNWNO WD Very thin cirri; lunar halo and corona, Auroral cirri ; id. ; id. Id. ; id. Cirrous mass, gradually growing denser. Id., less dense ; cirro-strati below. 062 || 30-1 Homogeneous mass of cirri. 29-006 || 29-7 . E Id., snow! ; snow began at 182 30™. 28-970 || 29-2 | 28-9 | 0- -0 |0- : Id., snow 7°; 1} inch deep. 944 || 29.7 5 -3 | 0- . : Snow?; 23 920 || 29-2 : E Flakes of snow ; 3 888 | 31-2 . . i : Snow? 880 || 32-6 . HI B : . Flakes of snow. 868 || 33-7 | 32- . F : : Cirrous mass; mean depth of snow 2°9 inches. 857 || 33-3 : . D . 726: : Cirro-strati ; cirrous mass. 838 || 33-2 . D * * 2:28: : Seud ; dense cirro-strati. 830 || 32-1 . . p . 428% : Cirrous scud ; cirro-strati; woolly cirri. 825 || 31-2 : b A “ i—: : Seud, cirro-strati, cirri; clouds tinged red. 821 || 31-5 : . D - . Homogeneous mass; breaks to SW. and W. 821 || 31-4 | 31- . f - -O || Snow}, (since 64 15™.) 823 || 31-6 5 B . 10-0 || Snow], fine particles. Stee ew to onmnronovoocu 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. otions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. ~ Jan. 244 5%. Sky purplish on E. horizon; at 64, dark red on SW. horizon, and slightly orange above. Jan, 244 11% and 135, and 26413. See Notes on the Aurore Boreales. MAG. AND MET. oss. 1845. 20 146 Hovurty METEOROLOGICAL OBSERVATIONS, JANUARY 27—29, 1845. 29-025 28-996 28-995 | THERMOMETERS. WIND. Wet. 17-2 0-2 |) 0-3 | 0-4 | 0-2 | Maximum force in Sky clouded. > Species of Clouds and Meteorological Remarks, Sesogesosso DB Re eee ee ee bo bo bo we 20 19 VOOR LF UAWWWWOODH- | Seud; cirro-strati; clouds broken. Snow? ; fine particles, Clouds not so homogeneous. Homogeneous. Id. Id. ; id. ; id. Td. ; id. Thin seud; cirro-strati ? Cirrous seud ; cirro-strati; cirri; stratus to E ? Id. ; id. ; id. ; id. Seud ; snow!; stratus to E. Cirro-strati to W.; cirrous mass; solar halo. Seud; cirrous mass; solar halo. Id.; snow®; snow 63 inches deep. Id.; dense cirro-strati and haze. Ids: id. Dense cirrous mass ; snow’ since 32, 1G Wap snow’ Scud ; dense cirro-strati; slate-blue to NW. and NE Cirro-strati; haze; stars dim. Td. ; id. ; id. As before ; faint aurora. Id. Scud ; cirro-strati on horizon ; faint aurora. Is IBS id. ; id. Bank of cirro-strati to S.; haze. Cirro-strati ; cirri; lunar corona, Id. ; id.; lunar halo. Id. ; id. ; id. Td. ; qd. 3 id. Id. ; id. ; id. Seud ; thin haze; faint lunar halo. Id.; cirri; cirro-strati; lunar corona, ) Cirro-stratous seud ; diffuse cirri; loose eum. on hor. Woolly cirri; masses of scud on horizon. C Scud ; woolly cirri and cirrous haze. Woolly cir. and cir. haze; cum.inhazeto NE. ; solar halo. € Tdi; solar halo. € GES id. Ta.); id. Id. ; id. a a | Cirri; atmospheric haze. Cirro-strati; cirri; dense cirri to E. Cirro-strati and haze round horizon. | faint auroral light, | id. Cirri; faint aurora ? Id.2 snow" for a little. Cirri ? Id. Id. denser. Jan, 274 11h—23h, Anemometer vane frozen up. Jan. 284 8b, The vane of the anemometer being frozen up it was released: the wind commenced blowing about 7" 40™. Jan. 284 20%, There is scarcely any moisture deposited on the stems, Xc. of the external thermometers, a very unusual circumstance al so low a temperature. Dry thermometer reading 7°°7. Jan, 294 8b 30m, ud an. 294 17h, n more than 0 Hourty METEOROLOGICAL OBSERVATIONS, JANUARY 29—3]1, 1845. THERMOMETERS. WIND. Maximum Dry. | Wet. | Diff. || force in [From 14, |10™. ° ° ° |] lbs. | Ibs. | pt. 15:3 | 15-4 | --- 0-0 |0-0 | 18 17-4 | 17-2 | 0-2 || 0-0 | 0-0 | 21 15-8 | 16-0 | --- || 0-0 |0-0 | 20 18-4 | 18-0 | 0-4 | 0-0 |0-1 | 20 22-0 | 21-3 | 0-7 || 0-2 |0-2 | 20 20-0 | 19-9 | 0-1 || 0-0 |0-0 | 26 17-0 | 16-7 | 0-3 || 0-0 |0-0 | 20 18-8 | 18-3 | 0-5 || 0-1 |0-0 | 18 21-3 | 20-9 | 0-4 || 0-0 |0-0 | 18 23-6 | 22-7 |0-9 ||0-0 |00 | 20 24-0 | 23-2 | 0-8 || 0-1 |0-0 | 20 25-9 | 24-3 | 1-6 || 0-1 |0-0 | 18 23-6 | 22-6 |1-0 || 0-1 |0-0 | 17 21-0 | 20-6 | 0-4 ||.0-0 | 0-0 17-1 | 17-1 | --- ||0-0 |0-0 12-4 | 12-8 -- | 0-0 |0.0 9-8 | 10-0 | -.- || 0-0 | 0-0 8-4] 8-6 : «= 10-0 6-4 | 6-6 0-1 | 20 5-4 | 5-2 0-0 4-3 (| 45) | eee 0-0 | 18 4:0 | 4-0 0:0 | 18 2-3 | 2.8] - 0-0 | 18 0-5 1-1 0-0 2-0 | 2-0 0-0 | 18 1-3 1-5 : 0-0 | 18 -1-1 |-0-4 - || --- 10-0 | 16 0:2 | ions 0-1 | 18 1-7 | 1-9 . - |0-1 | 16 10 | 1-2 . -- |0-0 | 20 2-4] 2-8 0-0 | 20 6-4 | 6-4] ... || --- 10-0 10:0 | 9-8 | 0.2 0-1 2 14-7 | 14-3 | 0.4 0-1 | 12 22-8 | 21-0 | 1-8 0-0 24-4 | 21-8 | 2-6 0-0 | 28 23-2 | 20-7 | 2.5 0-0 15-4 | 14-8 | 0-6 0-1 | 18 10-4 | 10-2 | 0-2 0-0 | 20 8-6 | 8-5 | 0-1 0-0 | 20 8-3 | 8-2 | 0-1 0-0 0 13-3 | 12-7 | 0-6 0-0 | 12 16-7 | 15-8 | 0-9 || --- |0-1 | 18 26-7 | 25-0 | 1-7 -- 10-2 | 28 27-8 | 26-3 | 1-5 || «+ |0-8 | 28 28-3 | 26-9 | 1-4 || --- |0-8 | 28 29-0 | 27-3 |1-7 |] «+ |0-8 | 28 29-2 | 28-0 | 1-2 || --- |0-5 | 31 29-2 | 27-2 |2-0 || --- |0-8 | 30 30-0 | 28-4 | 1-6 0-8 | 28 Pio ty fal er aaa 0-5 | 28 28-4] ... os 0-5 | 29 30-5 | 28-1 | 2.4 0-8 | 29 28-8 | 26-7 | 2-1 || - 0-7 | 30 30-6 | 28-3 | 2-3 || --- 10-5 | 29 32-6 | 30-1 | 2-5 || --» |0-2 | 29 Clouds, Se.: C.-s.: Ci., moving from pt pt. pt. 222: 20: nies | ro v0 | : 147 BEY Species of Clouds and Meteorological Ri ki: elated: p ogical Remarks. 0—10. 8-0 || Thin cirri; stars dim; halo. > 4-0 || Cirro-cumulous scud ; thin cirri; fine halo. } 2-0 || Thin cirri; faint halo. ») 1-5 | Cirro-strati ; cirri. } 1:5 || Bank of cirro-strati on E. horizon ; cirri. y 3-0 || Patches of scud: cirri; cirro-strati; cirrous haze. 4-0 Td.; id. 0) 3-0 || Cirro-strati; cirri all round horizon. (0) 5-0 Id.; id. oO 3-5 || Woolly cir. and loose woolly cir.-str.; faint solar halo. © 3-0 Id. ; id. r«) 5-0 | Id. ; id. (0) 8-0 | Woolly cirri and cirro-strati. e 9-0 Id. 8-0 Id. 4-0 Id. 0-5 || Haze on horizon. 0-5 || Haze to N.; faint aurora? 0-0 || Haze on horizon; faint aurora. 0-2 Id. 0-2 Id. 0-2 || Haze on horizon. 0-0 Td. 0-2 Id. ; cirro-strati to SE. 0-1 Ides id. ») 0-0 || Clear. »)) 0-1 || Cirro-strati to SE.; haze to E. y 0-4 || Cirro-strati to E. ») 0-8 Id. ; and cirri to E. and S. y 1-0 Id. ; cirri ; haze. 1-0 Id. ; id.; id.; ecumuli. (0) 0-8 || Cumuli; cumulo-strati; haze on horizon. © 0-5 Id. ; id. (o) 0-5 das id. (0) 0-5 || Cumulo-strati to E.; cirri to S. (o} 0-1 Id. (0) 0-12|| Cirri; cirrous haze. * (o) 0-8 || Cirri; cirro-strati, and cirrous haze. 0-7 || Cirro-strati to N.; cirrous haze on horizon. 0-4 || Cirro-strati; cirrous haze. 1-0 || Cirro-strati to N. 9-0 || Cirro-strati moved up from northwards; sky to N. 7-0 || Cirro-strati; cirri and haze. 3-0 || Cirro-strati to E. and N. 4-0 Id. 1-5 |\Cirro-strati to E. and N. 1-5 Td. to E.; thin cirrous clouds to N. 1:0 Td. 0-5 Id. 0-5 Id. ; to SE. } 1-5 | Cirro-cumulo-strati to SE. y 1-0 || Cirro-strati to E. y 1-5 || Scud and cirro-strati to E. and SE. y 2-0 || Cir.-str. scud ; cirro-strati ; cirri; cumulo-strati to NE. 9-0 || Cir.-cum. seud; woolly cirri; cumulo-strati to NE. 7-0 || Woolly cirri; cirro-strati and cumulo-strati to E. © "2 1b. during the night. 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 of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. The anemometer has been partially frozen, its indications are therefore not trustworthy : the pressure of the wind has not 148 meee wry Oo wrD bo © THERMOMETERS. WIND. Gott. BarRo- Mean || METER Maximum Time. || at 32°, Dry. | Wet. | Diff. force in 1s, |10™, a. h. 8 ® 5 Ibs. | Ibs. 1 O || 29-737 || 33-6 | 31-2 | 2-4 || --- |0-0 1 743 || 35-1 | 32-2 | 2-9 0-0 2 749 || 34-8 | 32-5 | 2:3 0-2 3 751 ||36-7 | 34-0 | 2-7 «. | 0-2 4 768 || 34-9 | 32-4 | 2-5 .. | 0-2 5 781 || 32-8 | 31-2 |1-6 || ... | 0-1 6 798 || 31-8 | 30-2 |1-6 . | 0-1 Ci 805 || 27-7 | 27-2 | 0-5 -- |0-0 8 821 || 28-5 | 27-9 | 0-6 0-1 9 832 || 26-2 ACC) eee 0-0 10 838 || 23-8 | 23-7 .. |0-0 Il 845 || 24-6 | 23-8 | 0-8 0-1 12 844 || 20-0 | 20-2 0-1 231) 29-801 || 34-0 | 32-4 |1-6 0-2 2 13 || 29-660 || 38-2 | 37-5 |0-7 || ... | 0-3 14 656 || 37-4 | 36-8 | 0-6 0-1 15 654 || 37-6 | 37-0 | 0-6 0-2 16 651 || 36-6 | 36-3 | 0-3 .. | 0-0 17 652 || 38-2 | 37-8 |0-4 ||... | 0-1 18 659 || 37-4 | 37-1 | 0-3 0-0 19 673 || 36-4 | 36-0 | 0-4 0-2 20 681 || 35-4 | 35-0 | 0-4 0-1 21 710 || 35-0 | 34.8 |0-2 }| ... | 0-1 22 720 || 35-2 | 35-1 | 0-3 0-1 23 741 || 36-4 | 36-3 | 0-1 0-1 3 0 760 || 38-0 | 37-9 | 0-1 0-1 1 791 || 40-9 | 40-2 | 0-7 0-1 2 793 || 43-6 | 40-7 | 2-9 0-1 3 809 ||43-5 | 40.7 | 2-8 }| ... |O-1 4 852 || 41-3 | 39-3 |2-0 || 0-2 | 0.2 5 874 || 39-8 | 38-2 | 1-6 || 0-2 | 0.2 6 893 || 38-7 | 37-1 | 1-6 || 0-2 |0-0 7 901 || 38-7 | 37-0 | 1-7 | 0-6 |0-5 8 914 || 37-6 | 35-8 | 1-8 | 0-8 | 0-6 9 952 || 37-1 | 34-6 |2-5 || 1-1 |0-1 10 956 || 36-6 | 34-0 | 2-6 || 0.7 | 0.4 1 967 ||34-8 | 33-2 |1-6 | 0-9 | 0-2 12 984 || 32-3 | 31-3 |1-0 | 0-1 | 0-1 13 || 30-004 || 30-4 | 29-8 |0-6 | 0-1 | 0-0 14 || 29-995 || 30-8 | 30-0 | 0-8 || 0-1 | 0-0 15 || 30-006 || 29-7 | 29.2 |0-5 | 0-1 |0-1 16 || 30-010 || 29-0 | 31-3 | ... |} 0-1 |0-1 17 || 29-992 || 27-5 | 28-0 | .-- || 0-1 | 0-1 18 989 || 26-6 | 26-8 | +» ||0-1 |0-0 19 975 || 28-0 | 28-0 0-1 | 0-1 20 974 || 28-0 | 28-0 0-2 | 0-1 21 978 || 27-6 | 27-5 | ... || 0-2 |0-1 22 978 || 30-8 | 30-1 | 0-7 || 0-1 | 0-1 23 975 ||34-7 | 33-0 | 1-7 || 0-4 |0-4 4 0 969 || 36-6 | 35-3 | 1-3 || 0-6 | 0-2 1 928 || 39-6 | 37-6 | 2-0 |/0-9 |1-0 2 904 || 40-6 | 38-5 | 2-1 || 1-0 |0-9 3 896 || 42-0 | 39-2 | 2-8 || 2-0 | 1-6 4 871 || 40-8 | 38-6 | 2-2 || 1-7 | 1-7 5 867 || 40-3 | 37-9 | 2-4 || 1-3 | 1-7 Clouds, ron | 24: Sc. : C.-s.: Ci, moving from Sisal | :27:— 27:— || HourLty METEOROLOGICAL OBSERVATIONS, FEBRUARY 1—4, 1845. Sk y 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. 2) q Scud ; cirro-cumuli; cirro-strati; cirri. iia Seud; cirro-cumuli in bands, lying N. and S.; slight snow since 3% Cir.-str. scud ; cir. ~cum. as before ; cum.-str. to E. | Id. ; cirri radiating from S by W. and N by E. | t Id. ; cirri round horizon. ides id. Id. ; id. Id. ; cirri to E. and S. Cirri to SE Id. ; aint cirrous mass ; cirro-strati. ALM, | shower of snow. i Dense mass of cirro-strati; drops of rain. \\d Scud and cirro-strati; sky to N.; drops of rain. ia Id. Idk; 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. O} Id. ; bank of cirro-strati to E.; stratus. ©} Id. ; atmospheric haze. O} Bank of cirro-strati; cumulo-strati to E. 0} | Seud ; cirro-strati; cirri; drops of rain. Id.; cirro-stratous seud ; cirro-strati. Seud. Id. Id. Scud and cirro-strati on horizon. Id. on E. horizon. Id. id. Id. id. Scud and cirro-strati on E. horizon. Id. id. Id. round horizon. Id. on E. horizon. Clear. Td. 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. Cir.-cum.-str.; cir.-str.; loose cum. to SE. and patches of seud to N | Scud; cirro-cumuli and dense cirro-strati to NE.; thin woolly ci 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), © .8. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Feb. 24 204. The sky on SSE. horizon is yellowish, becoming slightly orange to SE. ; to B. it is orange, becoming reddish ; to ENE., red to NE., purple: patches of growing scud on E. horizon, lying in a horizontal line, and at about equal intervals. Feb. 34 20%, Masses of stratus in the hollows of Cheviot, afterwards rising above the hill. Baro- METER at 32°. "4 in. 29-853 849 843 839 830 811 793 29-770 768 766 768 792 808 831 834 859 868 868 870 878 876 D 873 1}) 896 2 888 Hovurty METEOROLOGICAL OBSERVATIONS, FEBRUARY 4—6, 1845. 149 THERMOMETERS. WIND. Clouds, Maximum Se.: ney . force in movi Dry. | Wet. | Diff. aps From from 2 iy 2 lbs. | Ibs. pt. pt. pt. pt. 39-7 | 37-4 |2-3 || 1-6 |0-6 | 23 | 24:—:— 42.0 | 39-2 | 2-8 || 3-2 |2-0 | 20 42-0 | 39-4 | 2-6 || 2-1 |0-6 | 20 | 42-2 | 39-6 | 2-6 | 0-4 |0-3 | 20 41-2 | 39-2 | 2-0 | 0-5 |0-2 | 20 42.7 |40-2 | 2-5 || 0-8 |0-8 | 20 42-8 | 40-4 | 2-4 | 1-4 |0-4 | 20 41-9 | 39-4 |2-5 || 0-4 | 0-4 | 20 41-4 | 38-4 | 3-0 || 1-0 | 1-0 | 24 39-4 | 36-7 | 2-7 ||0-7 | 0-4 | 24 | 38-7 | 36-2 | 2.5 || 0-8 |0-6 | 23 38-7 | 35-8 | 2.9 || 0-8 | 0-6 | 26 38-6 | 35-8 | 2-8 || 1-3 | 1-2 | 27 37-8 | 35-0 | 2-8 || 1-7 | 1-3 | 28 37-3 | 34-5 |2-8 || 1-5 | 1-6 | 25 37-3 | 34-0 | 3-3 |] 1-5 | 1-3 | 26 38-3 | 35-0 | 3-3 |] 1-9 | 1-8 | 28 39-7 | 36-2 | 3-5 || 2-2 | 1-7 | 28 41-2 | 36-6 |4-6 || 1-8 | 1-6 | 28 41-8 | 38-0 | 3-8 || 2-0 | 1-6 | 25 | 28:—:— 42-1 | 38-0 | 4-1 |} 2-1 | 2-3 | 26 | 27:—:— 42-6 | 38-5 |4-1 |) 2-6 | 1-8 | 25 || 26:—:— 42-9 | 38-6 | 4-3 || 3-3 |3-.6 | 25 || 26:—:— 42.3 | 38-3 | 4-0 ||6-5 | 3-0 | 29 || 26:—:— 38-0 | 36-4 | 1-6 || 4-2 | 1-8 | 29 | 29:—:— 35-7 |34-1 | 1-6 ||3-6 |2.3 | 30 36-3 | 33-9 | 2-4 || 2-2 /1-0 | 30 35-0 | 32-9 | 2-1 || 1-0 |0-8 | 29 34-1 | 32-4 |1-7 || 1-4 |0-4 | 29 34.0 | 32-0 | 2-0 || 0-8 |0-7 | 28 33-5 | 30-7 | 2:8 ||0-9 |0-9 | 29 33-6 | 30-2 | 3-4 || 2-3 | 1-6 | 29 32-5 | 29-5 | 3-0 || 2-1 | 1-3 | 30 32-1 | 28-6 | 3-5 || 3-9 | 2-2 | 31 31-7 | 28-7 | 3-0 || 4-1 | 3-5 | 30 31-0 | 27-7 | 3-3 || 3-4 | 2-4 | 30 30-4 | 27-4 | 3-0 || 2-8 |2-1 | 30 30-7 | 27-7 | 3-0 || 4-2 |3-0 | 30 29.4 | 27-4 | 2-0 || 2-4 | 2-4 | 30 29-4 | 27-5 |1-9 || 2-3 | 2-0 | 30 30-6 | 28-1 | 2-5 || 3-0 |4-7 | 29 32-5 | 29-5 | 3-0 ||5-8 | 4-3 | 30 || —:31:— 33-2 | 29-4 | 3-8 ||/4-:5 |3-3 | 30 | 0:—:— 32.7 | 29-0 | 3-7 || 3-8 | 3-8 | 30 0:—:— 33-8 | 29-8 |4-0 || 4-4 |2.6 | 31 0:—:— 31-9 | 28-8 | 3-1 ||3-9 | 3-4 | 31 31-2 | 27-3 | 3-9 ||4-8 | 2-2 | 31 29-8 | 26-6 | 3-2 || 2-5 | 0-7 0 28-7 | 25-6 | 3-1 || 1-7 | 1-4 | 30 28-3 | 25-0 | 3-3 | 1-8 | 1-4 0 27.4 | 24-9 |2-5 || 1-6 |0-6 | 30 27-3 | 24-8 | 2-5 || 1-5 | 1-3 | 31 27-1 | 24-7 | 2-4 || 1-9 |0-9 | 30 27-0 | 24-3 |2-7 || 1-7 |0-6 | 31 26-2 | 23-8 | 2-4 || 2-0 |0-6 | 30 » . 54 Hb 20m, MAG. AND MET. ops. 1845. Sky clouded. Species of Clouds and Meteorological Remarks. Scud; cirro-cumuli and dense cirro-strati to NE.; thin woolly cirri. Id. Id.; dark. amyl ; clouds broken. Id.; cirri above. - id. Seud ; clearing to W. Cirro-stratous scud ? Cirro-strati ? ila: cirri; stars dim. Id. 2 Cirri on S. horizon ? Cirro-strati ; cirri on S. horizon. Patches of scud and cirri on E. and S. horizon. Cirro-strati on horizon; mass of loose cumuli to SE. © Bank of cirro-strati on E. hor.; loose cumuli toS. © Scud and cirro-strati on horizon ; id. (o) Cirro-strati and cirri on E. horizon ; loose cumuli. © Scud; cirri; loose cumuli. (0) Send and loose cumuli; cirri. } Loose, ragged cum. ; drops of rain; cirro-strati to E. © Id. (0) Scud; dense black mass to NE., falling in rain or snow. 5p 15™, rain? Id. ; cirrous mass; cumulo-strati to E.; rain! Id. ; cirro-stratous scud; 64 10™, sleet and hail? Id. ; id; auroral light. Cirro-strati to SE. and to NNW. among aurora, Td. to W. and N.; auroral bank. Scud and cirro-strati; faint auroral light. Cirrous clouds ; id. Clear; faint aurora. Id.; small patches of cloud to N. Id.; cirro-strati on N. horizon. Id. Very clear. Id. Cirro-stratous scud on E. horizon. Id.* Id. ; tinged red. Seud and cirro-strati on E. horizon. (o) Cirro-stratous scud. o) Scud and loose cumuli; flakes of snow. Id. Id. Id. round horizon, (0) Id. ; cirro-strati on horizon. [o) Id. ; id. on E. horizon. (0) Loose cumuli; cirro-strati to SW., tinged with red. Scud and loose cumuli. Clouds on horizon. Seud. Id. Id. on E. horizon. Id. id. 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 ion of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. eb, 54 2h, The snow has nearly all disappeared; there are still a few patches in the valleys. Several mole-hills thrown up near the Barometer 29:570 in. (rain and sleet) * See additional Meteorological Notes after the Hourly Meteorological Observations. [Observatory. 2P 150 Hovurty METEOROLOGICAL OBSERVATIONS, FEBRUARY 6—9, 1845. THERMOMETERS. WIND. | Clouds oe oa acd Se.: C.-s.: Ci, Sky a ; ao ey owe toe fase Hives ae vin g — ||clonded. Species of Clouds and Meteorological Remarks, 14, }10™, _ ae in. ° ° ° || tbs. | Ibs. | pt. |] pt. pt. pt. |} o—t0. 6 13 | 29-891 || 26-7 | 24-6 | 2-1 || 1-0 |0-9 | 30 3-0 || Scud. 14 885 || 26-4 | 24-8 | 1-6 || 1-2 | 0-6 | 30 3-0 Id. 15 870 || 27-7 | 25-9 | 1-8 || 0-6 | 0-5 | 30 10-0 Id. 16 851 || 27-4 | 25-8 | 1-6 ||0-8 | 0-7 | 30 9-9 Id.; flakes of snow. 17 845 || 27-5 | 25-8 | 1-7 || 1-0 | 1-0 | 30 5-0 Id.; snow! 18 851 || 27-4 | 25-9 | 1-5 |/0-7 | 0-5 | 30 9-0 Td. 19 843 || 27-3 | 25-7 | 1-6 || 1-1 | 0-9 | 30 7-0 || Seud and cirro-strati. 20 860 || 27-0 | 25-3 | 1-7 ||/0-9 |0-6 | 31 |} 3:—:—H} 9.5 Td. ; a few flakes of snow. 21 883 || 26-9 | 25-8 | 1-1 ||0-8 | 0-4 | 29 9-9 || Cirro-stratous scud, falling in snow’, 22 74 || 27-0 | 26-1 |0-9 ||0-7 |0-6 | 29 ||—: 2:—|| 9.0 Id. 23 877 || 29-4 | 27-3 |2-1 |) 0-7 | 0-5 1 32: — 2-5 || Seud; flakes of snow; fine linear cir. ; faint solar halo. € 0 881 || 31-0 | 28-1 | 2-9 || 0-8 | 0-8 0 i 3-0 || Loose cumuli; thin cirri and haze. ( 1 870 || 31-4 | 27-7 | 3-7 || 1-3 |0-7 | 2 3-0 Id. ; id. ( 2 864 || 32-0 | 28-9 |3-1 || 0-6 |0-2 | 1 | 2:—:—|| 9-5 || Seud and loose cumuli; woolly cirri. 3 865 || 31-7 | 28-9 | 2-8 || 0-6 | 0-4 0 |—: 3:—|| 9-5 || Cirro-stratous scud ; loose cum.; particles of fine snoy 4 860 || 31-6 | 28-8 | 2-8 || 0-4 | 0-2 0 ||—: 2:—] 96 Td. ; cirro-strati; cirri; flakes of snow 5 863 || 30-9 | 28-4 | 2-5 || 0-3 | 0-1 1 4: 4:—|| 10-0 || Seud; cirro-strati; nimbi to NE.; flakes of snow. 6 874 || 30-3 | 28-0 | 2-3 ||0-2 | 0-2 | 31 10-0 IGhS id. 7 885 || 29-7 | 27-7 | 2-0 ||0-2 |0-1 | 31 10-0 Td. 8 888 || 30-0 | 28-0 | 2-0 || 0-2 | 0-1 | 26 10-0 Id.; dark; flakes of snow. 9 891 || 29-8 | 27-8 | 2-0 || 0-2 | 0-1 | 29 10-0 Id. ; id. 10 891 || 29-8 | 27-8 | 2-0 || 0-2 | 0-2 | 28 10-0 Iehs id. 11 890 || 29-0 | 27-4 | 1-6 || 0-1 | 0-1 | 28 5-0 Id.? cirro-strati? 12 894 || 28-2 | 27-2 | 1-0 ||0-0 | 0-0 | 17 10-0 Id. ? id. 13 || 29-892 || 27-9 | 26-7 | 1-2 ||0-0 | 0-0 | 20 9-8 || Nearly as before. 14 894 || 26-5 | 25-6 | 0-9 ||0-0 | 0-0 4.0 || Cirro-strati; cirri; stars dim. 15 894 || 25-0 | 24-1 | 0-9 ||0-0 | 0-0 | 20 1-0 Ibe id.; milky aurora over the sky. 16 891 || 25.9 | 24-6 | 1-3 || 0-0 | 0-0 | 20 9-8 || Cirrous clouds ; chequered to S. 17 893 || 25-5 | 24-5 | 1-0 ||0-0 | 0-0 | 20 10-0 || Cirro-strati; cirrous haze; stars seen dimly. 18 893 || 25-6 | 24-7 | 0-9 || --- | 0-1 | 20 10-0 Id. ; ids): id. 19 897 || 25-2 | 24-3 | 0-9 0-1 9-5 1G id. ; id. 20 898 || 25-3 | 24-5 | 0-8 0-1 | 24 10-0 Id. ; cirrous mass. 21 898 || 25-4 | 24-7 | 0-7 0-0 | 22 10:0 || Dense homogeneous cirrous mass; cum. on E. horizon 22 908 || 27-0 | 25-9 | 1-1 0-0 | 24 10-0 Td. ; faint halo. 23 904 || 28-8 | 27-6 | 1-2 0-0 | 22 10-0 Id. ; cumuli on horizon ; faint halo. 0 | 907 | 30-3 | 28-8 | 1-5 - |0-1 | 26 10-0 || Woolly cirri; cirrous mass ; faint halo. 1 | 899 || 32-7 | 30-7 | 2-0 0-1 | 17 9-5 Id. 2 896 || 32-8 | 30-4 | 2-4 0-1 | 17 || 18:—:—J| 9-0 || Seud and loose cumuli; woolly cirri. 3 875 || 34-4 | 31-6 | 2-8 0-1 | 16 |} 18:—:— 9-5 Ids; id. 4 874 || 34-0 | 31-0 | 3-0 0-1 | 19 }18:—:—}) 85 Id. ; id.; cirro-strati. 5 867 || 31-0 | 29-0 | 2-0 0-0 | 19 | —:27:—)] 9-8 || Cirro-cumulo-strati; cirri; cirrous haze. 6 868 | 28-0 | 26-7 | 1-3 O:3, bade — ee 6:0 | Loose cirro-cumuli; id. ; id. 7 869 | 26-5 | 26-0 | 0-5 O-1 | 17 7-0 Id. ; 1d..3 id.* 8 862 || 28-4 | 26-8 | 1-6 0-1 | 17 10:0 || Cirrous mass? dark. 9 855 | 28-9 | 27-1 | 1-8 0-1 | 18 | 10-0 Id. ; id. 10 855 || 29-2 | 27-2 | 2-0 0-1 | 18 10-0 Id. ; id. 11 843 || 29-7 | 27-6 | 2-1 0-1 | 18 10:0 || Overcast with dense clouds. 12 835 || 29-6 | 27-5 | 2-1 0-1 | 17 10-0 Id. 0?) 29-634 || 32-2 | 31-2 | 1-0 ||0-6 | 0-2 | 16 Sunday. Overcast; snow from 8" 23! till 94 5, 13 | 29-457 || 33-3 | 32-5 | 0-8 || 0-5 | 0-0 10-0 || Dense cirrous mass ; snow! 4 14 452 || 33-2 | 32-4 |0-8 || 0-2 | 0-1 | 18 10-0 Id. 15 450 || 33-7 | 32-6 | 1-1 ||0-1 |0-0 | 18 10-0 1G snow! 16 438 || 33-8 | 32-7 | 1-1 || 0-1 | 0-0 10-0 Id. f U7 431 || 34-3 | 33-3 | 1-0 || 0-1 } 0-1 | 20 10-0 Td. 18 421 || 34-4 | 33-4 | 1-0 ||0-1 (0-0 |} 22 10-0 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.-s. (cirro-stratus), and (i. (cirrus), are indicated in a similar manner. Feb. 84 5%. Cirro-cumulo-strati radiating from NNW. and SSE. 44. New silk put on wet bulb. ? * See additional Meteorological Notes after the Hourly Meteorological Observations. ‘ THERMOMETERS. WIND. Sky clouded. Species of Clouds and Meteorological Remarks. Maximum Dry. | Wet. | Ditf.|] force in | Dense cirrous mass. Scud and cirro-strati. Cirrous clouds ; cirro-stratous scud. Cirro-stratous scud ; cirro-strati. Id; id. Thin misty seud ; cirro-strati. Loose scud; cirro-strati; cirro-cumuli. Scud ; cirro-strati; cirrous clouds. Id. ; id. Id. ; id.; thin fog or haze to E. Id.; woolly cirri and cirro-strati; thin fog. Id.; cirro-strati. Ns id.; stars dim. 3 > 34-0 | 33-3 34-7 | 33-6 35-0 | 34-0 36-0 | 34-7 37-9 | 36-0 37-9 | 36-0 39-6 | 37-5 39-0 | 37-6 39-4 | 37-7 38-6 | 37-2 37-5 | 36.4 35-2 | 34-4 34-0 | 32-7 33-0 | 31-8 31-8 | 32-2 31-3 | 30-0 31-2 | 29-8 id.; cirrous haze; stars dim. 29-2 id. ? id. ? 28-8 | 1- : : Nearly as before; very dark. 28-5 | 1- D - . Id. ; id. 28-2 27-9 27-3 27-8 29-8 | 27-4 29-8 | 27-7 30-0 | 27-8 30-6 | 28-2 31-2 | 28-3 31-0 | 29-4 32-2 | 30-2 32.9 | 30-3 id. id.; clouds broken. id. I ee ce ee ee ce ce 2 cel el eo =) PrwWoOe RUBE OCOWOKY Dense cirrous mass. Id. Cirro-stratous scud ; cirro-strati ; cum. on E. and §. hor. Id. ; tes flakes of snow. Id. ; snow’. Seud ; cirro-strati. Id.; cum. on E. hor. ; cirro-strati; cirrous mass. 32-0 | 30.2 Loose scud to E. ; id. ; id. 32-3 | 30-3 : Dense cirrous mass. 32-2 | 30-0 | 2- . 5 224: - Thick, wavy cirro-stratus. 31-6 | 29-9 | 1- : : . Td. 31-4 | 29-4 | 2-0 ||0- : : Dense mass. 31-6 | 30-0 | 1- ‘ : . Id. 31-7 | 30-2 | 1- . : . Id. 31-9 | 29.8 | 2. E - . Td. 31-9 | 29-7 | 2- : 5 - Id. 31-8 | 29-7 | 2- . : 5 Td. 30-030 || 31-8 | 29-6 | 2- D D } : Dense mass. | 040 | 31-4 | 29-4 | 2. . - : Id. 30-7 | 28-6 | 2- : p : Cirro-strati and cirrous haze ? 29-9 | 27-7 30-1 | 27-9 30-0 | 27-8 29-4 | 27-2 : - i 29-4 | 27-3 | 2- D : :20: . Id., breaking ; fog at a distance; red to SE. 29-5 | 27-2 | 2. . * :20: : Id.; tinged red to E.; id. 29-4 | 27-2 | 2. : : : Id.; woolly cirri; fog getting nearer. © 31-5 | 28:7 | 2. D D 220: 5 Cirro-strati; cirrous haze. 32-8 | 30-0 | 2- : : 719: . Undulated cirro-strati; atmosphere hazy. 33-4 | 30-0 | 3- * : 20: E Tidy." cirrous mass; atmosphere hazy. 33-1 | 30-0 | 3- - - 720): . Id. ; id. ; id. UW dooaAwHaAE AA SOC OR BR BR ee eee — doi rection of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.= 8, S.— 16, W.= 24. The is of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. . 104144, The vane of the anemometer frozen up with the opening towards SW. ; the indications have been too small during the the vane was released at 144 15™, 152 Hovurty METEOROLOGICAL OBSERVATIONS, FEBRUARY 12—14, 1845. | THERMOMETERS, Time. | at 32°. Dry. h 3 4 5 6 976 || 32-1 7 972 || 31-3 8 946 || 32.4 9 909 || 32-7 10 879 || 33-7 11 873 || 33-8 12| 855 || 33-4 13 || 29-828 || 33-7 14|| 785 ||35-5 13 0} 493 || 40-2 549 || 38-3 || 36-7 587 || 35-3 612 || 33-5 633 || 32-5 662 || 34.2 10| 683 ||33-8 COnNavnrwn- uo [=r] o Wet. WW See ee eee BP ete BeBe eB OOR eee BTIOE NOP WWE OCNUNUOKOD PREM DONWMDOGD ” 2-7 31-7 2-9 COO BPR HK OWHR WHR AAR KF OWOrKwWwWaDW Maximum force in 14, WIND. 10™, ee Cate ee et ele DANAE ISSIBA Clouds, Sc.: C.-s: Ci. moving from pt. 24: pt. pt. Sky clouded. 1:8 Species of Clouds and Meteorological Remarks. Nearly homogeneous cirrous mass ; snow since 20, — Undulated cirro-strati and cirrous mass. , Nearly homogeneous cirrous mass. Homogeneous clouds ; snow!. © ats snow’. Snow?” ; vivid flash of lightning at 8 10™, Id. % Id. Seud. Id.; snow!. Seud ; snow”. Loose scud ; dense cirro-strati. Thin, loose scud ; loose cirro-strati; cirro-strati. 1GBs id. Ids; id. ; drops of rain. Ids; id. ; id. Td*; id. Id. ; id. ; blue cir.-str. to E, ins: id. ; drops of rain. — Seud, rather thicker; cirro-strati; drizzle”. , Id. ; cirro-cumulous scud ; many varieties of cirri. 4 cirri ; sky red. Ike id. Id. ; shower since last. Seud and cirro-strati. Cir.-cum. scud ; loose cir.-str. ; bands of thin cirri. Patches of seud ; bands of cirri; bluish corona. Faint lunar corona. Very clear ; 12 5™, meteor from zenith to NW. Seud to W. Clear; stars twinkling very hard. Cirro-strati to E. i Clear. Streak of cirro-stratus to E.; sky getting milky to ] Seud on Cheviot and on horizon. Id. ; cirro-strati; hoar-frost on the ground. q Cirro-strati and loose hanging cir, clouds ; scud to SI Loose cirro-cumuli; cirro-strati; seud on Cheviot. As before. Seud ; wo. cir. and cir. haze; cir.-str.; cum. on E. hi Seud and loose cumuli; cirri; cirro-strati; haze. Id. ; cir.-str. ; slight snow-showel des id. [NE Id. ; id.; loose seud; cumuli Id: ; id.; loose cum. on E, hor Id. ; snow-shower around, Watery cirro-cumuli; cirro-strati; fine lunar cor. Id. ; id. Id., much denser. | 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. q motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Feb. 124 21". Clouds bluish to E.; the scud is lower than the top of Cheviot. Feb. 13° 7" 30™. Large masses of loose cumuli and scud, which, when thin, produce an indistinct corona while passing over the The sky is unusually clear beyond. 134 18) 5m. Twilight beginning to break. Sky milky to altitude 30° from E. 662 668 671 668 663 671 670 681 680 691 | 700 | 708 717 |. 726 | 29-736 | 739 5|| 746 Bi 6743 Hovurty METEOROLOGICAL OBSERVATIONS, FEBRUARY 14—17, 1845. THERMOMETERS. WIND. Dry. | Wet. | Diff. 29-5 29-1 28-6 28-0 27-3 28-4 29-2 G2 ND G9 G9 G9 G9 9 OP EP E9 OF ID EO SOR RF WR RR RERrON 1:7 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 w o pay TX) Rtese al A> Jel — Sst — St — 9) SN — KBOORHRAAVWANGA 34-4 32-3 29-3 30-7 29-2 30-9 0-1 "MAG. AND MET. ons. 1845. Maximum force in 14.) 107. Clouds, Sc. : C.-s,: Ci., moving from pt. pt. 30:—: pt. sie bs i bl cl 153 Sky clouded. Species of Clouds and Meteorological Remarks. 0—10. 2-5 || Seud; cirro-strati on horizon; small lunar corona. _) 3-0 ick id. y 3-5 || Cirro-cumulous scud, causing a lunar corona. } 0-3 || Clouds near horizon. y 4-0 || Cirro-cumulous scud ; cirro-strati. 10-0 || Overcast. 10-0 Id. 10-0 Id. 10-0 || Seud. 10-0 || Cirro-cumulous scud; red to E. 10-0 Td: cirro-strati. 10-0 || Cirro-stratous seud ; id, 9-9 Id. ; id.; sky greenish to N. 9-8 Id. ; woolly cirro-cumuli ; cirro-strati. 9-8 || Cirro-cumulous seud ; id.; id. 9-8 Id. ; id. ; id. 10-0 Id. ; id. ; id. 10-0 || Cirro-strati; cirrous mass. 10-0 || Cirro-stratous scud ; undulated cirro-strati. 10-0 || Dense cirro-strati. 10-0 Td. 9-9 Id., breaking to N. 10-0 Id. 10-0 Id., becoming looser. 10-0 Id. 10-0 Id. Pe Sunday—Cloudy, with gleams of © ; cirro-stratous { scud; woolly cirro-cumuli. p.m. Wind WNW.? 10-0 || Dense scud. 10-0 Td. 10-0 Id. 10-0 Id. 10-0 Id. 10-0 Id. 10-0 Id. 10-0 Id. 10-0 Id.; hazy. 9.8 Td.; id. to N. (Ss) 8-5 Id.; cirro-strati; cirro-cumuli. 9-5 || Seud and cirro-strati. 9-9 || Cirro-stratous scud; cirro-strati; cumuli on NE. hor. 10-0 Id. ; id. 10-0 Id. ; id. 10-0 Ichs id.; very hazy. [blue. 10-0 Id. ; id. ; id.; clouds orange and 10-0 Id. ; hazy atmosphere. 10-0 Id. } 9-9 Id. } 9-8 || Watery cirro-cumuli. ap 9-8 Id. } 9-8 Id. ; hazy ; coloured lunar corona. } 3-0 Td. ; id.; id. >} 0-2 || Thin cirri; haze. ») 0-4 Id. ; id. ; lunar corona, »)) 3-0 || Loose cirro-cumuli. > 9-9 || Cirro-cumulous seud. 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 of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 154 Gott. Bano- Mean || METER Time. || at 32°. dad. h.| in. 17 17 || 29-751 18 754 19 763 20 775 21 779 22 795 23 806 18 0 820 1 813 2 813 3 812 4 812 5 812 6 | 817 7 825 8 844 9 857 10 863 11 882 12 878 13 || 29-882 14 887 | 15 | 893 16 891 17 898 18} 907 | 19}; 910 }\2 20 910 21); 926 22|| 923 23 927 19 O 927 1 918 2 907 3 891 4 884 5 885 6 888 7 892 8|| 885 9| 888 10) 889 11| 887 12 886 13 || 29-882 14 868 15 | 860 16 851 17 838 18) 820 19 818 20 821 21 824 22 818 23|| 801 20 0 799 HovurLy METEOROLOGICAL OBSERVATIONS, FEBRUARY 17—20, 1845. THERMOMETERS. WIND. Maximum | Dry. | Wet. | Dift.| force in |From | 14, | 10m, ees | ° © | ips. | Ibs. | pte 131-9 |31-8 | 0-1 || 0-0.|0-0 | 22 32-7 | 32-3 |0-4 |/0-0 | 0-0 | 22 | 34-4 | 33-6 | 0-8 ||0-0 |0-0 | 26 | 34:7 |33-7 |1-0 | 0-0 10-0 | 24 32-8 | 32-2 |0-6 |/0-1 | 0-2 | 19 36-2 | 34-8 | 1-4 || 0-2 |0-0 | 24 36-9 |35-2 | 1-7 || 0-2 |0-2 | 22 37-8 | 36-0 |1-8 ||0-2 | 0-2 | 24 | 40-8 | 38-4 | 2-4 ||0-1 |0-0 | 24 40-7 | 37-8 | 2-9 ||0-0 | 0-2 | 28 41-5 |37-8 |3-7 | 0-1 |0-0 | 26 43-9 |40-0 | 3-9 || 0-1 |0-1 | 22 | 40-6 |37-2 |3-4-||0-1 |0-0 | 23 | 38-3 |35-8 |2-5 ||0-2 |0-1 | 25 |33-8'|32-7 |1-1 ||0-3 |0-0 | 16 | 29-0 | 28-6 | 0-4 || 0-0 |0-0 | 27-6 | 27-9 | --- | 0-0 |0-0 | 20 | 26-2 | 26-9 0-0 |0-0 | 16 | 29-7 | 29-6 | --- |/0-0'|0-0 | 20 {29-9 | 29.5 | 0-4 |/0-0 |0-0 | 20 28-0 | 28-0 0-2 |0-1 | 20 25-8 | 26.0 |0-2 |0-0 | 17 | 24-6 | 25-0 0-0 | 0-0 | 25-8 | 25-8 (0-0 | 0-0 | 16 26-0 | 26-0 0-1 |0-0 | 20 25-2 125-1 | --- | 0-0 | 0-0 | 24-9 | 24.7 | 0-2 | 0-0.|0-0.| 22 | 24-8 | 24-6 | 0-2 | 0-0 | 0-0 | 24 | 25-6 | 25-3 | 0-3 |/0-1 | 0-1 | 20 | 28-0 | 27-6 | 0-4 || 0-2 | 0-1 | 24 (293 28-9 |0-4 | 0-1 | 0-1 | 25 | 31-6 | 30-8 |0-8 | 0-0 | 0-0 | 26 | 33-5 |32-1 | 1-4 | 0-2 | 0-0 | 36-3 |35-0 | 1-3 | 0-2 |0-0 | 12 37-2 |35-4 |1-8 0-0 |0-0| 6 | 37-7 | 36-0 | 1-7 | 0-0 | 0.0 | 36-6 | 35-0 | 1-6 || 0-2 |0-2 | 16 | 33-2 | 32.3 |0-9 | 0-2 |0-2 | 16 135-0 |33-5.11-5 ||0-2 |0-1 | 21 35-0 |33-5 | 1-5 || 0-2 |0-1 | 24 34-9 | 33.4 | 1-5 ||0-2 | 0-2 | 18 34-3 | 33-3 | 1-0 || 0-2 |0-2 | 18 | 34-6 |33-3 | 1-3 || 0-1 |0-0 es 33-5 | 1-3 || 0-0 |0-0 | 20 | | 34-5 | 33-2 | 1-3 | 0-0 |0-0 | 18 | 34-0 |33-0 | 1-0 | 0-0 |0-0 | 18 | 34-0 | 32-6 | 1-4 || 0-4 |0-1 | 20 | 33-9 |32-6 |1-3 | 0-3 | 0-1 | 18 | 33-9 | 32.6 | 1-3 | 0-2 |0-1 | 16 | 32-2 |31-9 | 0.3 | 0-5 |0-2 | 17 32-0 | 32-0 | .-- ||0-7 | 0-1 | 18 33-0 | 32.0 | 1.0 | 0.3 |0-3-| 18 34-0 | 32-3 | 1-7 | 0-1 | 0-3 | 20 35-7 134-0 11-7 || 0-3 | 0-3 | 17 | 36.4 |34-1 |2.3 |10-5.10.9.| 21 39.4 | 36.2 |3.2 |0.7 '1.0 | 18 Clouds, y : ip ey IS mac Species of Clouds and Meteorological Remarks. — | from | pt. pt. pt O—10. 10-0 | Dark | 10-0 || Id. 21:—:—|| 10-0 || Seud? 7 —:21:—1|| 10-0 | Loose ecirro-cumulons seud; cirri; atmosphere hazy, —:22:—|| 6-0 Id. ; bank to S.; id. to I 10-0 || Cirro-stratous scud; cirrous mass; hazy. 10-0 Id. ; ids; id. 10-0 || Cirro-strati ; cirrous mass; hazy. —:24:—)'| 9-9 || Cirro-stratous seud ; cirro-strati; haze on horizon. 22:—:—)|| 7-0 | Loose cumuli; cirro-stratous scud; streaks of cirri. 22:—:—|| 9-5 Id. ; id. ; id. OD a oe Id. ; id. ; haze. 22:—:—-|| 7-0 Id. ; id. ; id. 3-0 Id. ; id. ; streaks of cirri, 0-2 || Streaks of cirri; haze on horizon. 0-1 Id. ; id. pet HSS [ie 02] Id. ; id. 2-0 || Thin cirri over the sky; haze. —:18:—|| 9-5 || Large cirro-cumuli. S18.) oo Id. 0-2 || Clouds and haze on E. horizon. 0-2 Id. 0-5 Id. 0-5 Id. 0-5 Td. 0-5 Id. 0.2 || Haze on horizon ; very thick to E. 0-5 || Very hazy round horizon; a patch of cloud to E. _ 0-5 || Haze brown to E., bluish to W ; loose cirri to SW 18:—:—|| 8-0 | Loose misty seud; general haze. 0-5? || Hazy ; very thick on horizon; no clouds visible. — 0-0 || As before. 7 0-0 Id. ; 0-0 Id. 1-5 || Cirro-strati and cirri in haze near horizon. —:19:—|| 5-0 | Cirro-cumulous seud ; very hazy. 3-0 || Loose cirro-strati ; id. 7-0 || Cirro-strati ; id. —:21:—|| 10-0 || Cirro-cumulons seud ; id. —:21:—|| 10-0 Id. ; id 2) ee im 2) dts id. —:21:—|| 10-0 Id. 10-0 || Seud ? id 10-0 Id. 10-0 || Seud ? 10-0 || Id., cirrous clouds above. 16-0 || Id. 2 10-0 || Id. 10-0 || Homogeneous. 7-0 || Cirrous clouds and haze. —:28:—|| 9-0 | Cir.cum.-str.; cir.-str.; hazy to E.; fiery red to —:28:—|| 9-0 Id. ; id. ; id —:26:— 9-5 Id. ; id. ; id. —:26:—|| 9-8 Id.; id. ; id 2-0 Id. ; id. ; id. ‘ 24:30:— 2-2 || Cirro-cum. scud; loose cirro-str. ; cirri; cir. haze. 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. ’ Feb. 191.5», There has been a very dense haze in the atmosphere throughout the day; objects being invisible at a distance of thre miles. ® ~* Hovrty METEOROLOGICAL OpsERVATIONS, FEBRUARY 20—22, 1845. 155 THERMOMETERS. | WIND. Maximum Wet. | Diff. || force in 40-6 41-1 40-2 39-7 41-5 41:8 40-2 38-4 33-0 30-9 32-3 31-0 28-0 27-0 28-7 27-8 27-7 30-0 | 30-0 28-9 27-7 28-9 32-6 33-5 34-0 32-7 37-2 37-0 36-7 35-0 33°7 | 30-7 33-0 | 30-2 32-4 | 30-4 AMWAhMHEWOSSDRHENSCOHWSONAN CHAK .eeee > BB OAT Sky clouded, Species of Clouds and Meteorological Remarks. 10-0 | Scud; loose cirro-strati; cirrous haze. | Id. ; cirro-cumulo-strati ; cirro-strati. | Id.5 id. Id. ; id. Id.; id. Thick scud; reddish cirro-strati to NE. and NW. links cirro-strati. Masses of scud and cirro-strati. Seud ; loose cirro-cumuli. Id. ; ids 3 Id. ; id. Cirro-cumulo-strati. drops of rain. Cirro-cumulo-strati. Seud; cirro-cumulo-strati ; cirri. Td. ; id. Tas id. Id. ; id. Loose cirro-cumulo-strati ; cirro-strati. Seud ; loose cirro-strati. Id.; cirro-strati; patches of linear cirri. Loose seud on hor. ; cir. seud ; cirro-strati ; cirri ; shower Seud ; cirro-stratous scud ; cirro-strati. [to NE. 6 Id. ; id. 5 id.; drops of rain. Id. ; id. ; id. ; id. take id. ; id: 5 id. Thick scud; cirro-strati; occasional rain °*- Seud ; loose cumuli; cirro-strati; cirri. Id. ; id. ; id. nr ee id. ; LichsP id. ; Id. ; id. ; Clouds to E. Loose scud ; cirro-strati; woolly cirri to E. Fine sheets of cirro-cumuli. Streaks of thin cirro-strati; very slight haze. Patches of loose cirro-strati ; id. tinged red. Patches of loose cirro-strati. At 13" 40™ sky clouded = 9; cir.-cum.-str. ; corona. Woolly cirri. Dense fog. Id.; objects invisible at 200 yards. Id. ; id. itd. id. 150. Loose cirro-cumuli; fog as at last hour. Id. ; cirri; fog at a distance. Cirro-cumulo-strati ; id. Id. ; cirro-strati; cirri; fog on hor. © Loose cirro-cumuli ; cirri; cirrous haze; no fog. e Woolly cirro-cumuli ; woolly cirri ; cirro-strati ; fog. Id.; cirro-strati; cirrous haze. (5) Nearly homogeneous cir.-str. and cir. haze; fainthalo. 6 Patch of scud ; dense cirro-strati and haze. Cirro-strati; haze; woolly cirri. Tde; id.; cirrous mass. Id. ; id. Dense cirrous mass. direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, BE. = 8, S.= 16, W. = 24. The of the three strata of clouds, Sc. (scud), ©.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 56 Howry METEOROLOGICAL OBSERVATIONS, FEBRUARY 22—25, 1845. THERMOMETERS. WIND. Gott. || Bano- Clouds, Mean || METER Maximum Re Greil 1 Be d Species of Clouds and Meteorological Remarks. Time. || at 32°. | Dry. | Wet. | Diff.| forcein [prom|| “Mey nS yrouces- | 1h, , 10™, pe ie in. ~ 2 ‘2 Ibs. | Ibs. pt. || pt. pt pt. 0—10. 22 9 || 29-263 || 32-5 | 31-0 | 1-5 || 0.2 | 0-2 | 15 10-0 || Dark; 9% 15™, particles of snow. 10 261 || 32-0 | 30-2 | 1-8 0.2 |0-0] 6 10-0 || Cirro-strati, more broken than at 9". 11 264 || 32-6 | 30-5 | 2-1 || 0-0 |0-0 | 16 10-0 Id. : 12 | 261 || 32-0 | 30-3 | 1-7 |/0-1 |0-0 | 16 || —:20:—] 10-0 Id. lerae F ease Sunday—a.m., clear; a few woolly cirri. P.m.—Ovye 233) 29-218 || 32-1 | 28-5 | 3-6 | 0-2 | 0-0 a es 20) Genes 1 cast with cirro-stratous scud; air very dry all day 23 13 || 29-266 | 33-6 | 32-5 | 1-1 |0-5 |0-0 | 22 10-0 || Thick seud and cirro-strati. ; 14 271 || 33-4 | 32-5 |0-9 ||0-0 |0-0 | 20 10-0 Id. 15 276 || 33-8 | 32-6 | 1-2 ||0-0 |0-0 | 22 9-9 || Cirro-stratous scud. 16 278 | 34-0 | 32-5 |1-5 || 0-0 | 0-0 | 16 10-0 Id. ; drops of rain or snow. we 277 || 34-7 | 32-6 |2-1 10-3 | 0-3 | 22 10-0 Id. 18 301 | 36-0 | 33-0 |3-0 | 0-4 | 0-2 | 25 10-0 Id. , 19 326 | 36-8 | 33-8 |3-0 ||0-5 |0-3 | 28 || —:23:—]] 10-0 Id. [white to E 20 365 || 36-3 |33-8 | 2-5 | 0.5 |0-2 | 28 ||29:—-:—} 10-0 || Loose scud; cirro-stratous scud, orange-coloured ; groun 21 389 || 35-4 | 33-4 0 | 0-2 |0-4 | 29 || 299:30:— 8-5 Tdi: cirro-cumulo-strati ; cirro-strati. 22 429 || 37-2 |33-2 |4-0 ||0-6 |0-6 | 29 ||—_-: 0:— 2-0 || Cirro-stratous scud; cum. and cum.-strati on horizon, | 23 458 || 39-2 | 33-9 | 5-3 11-5 |1-2 | 29 || 0:—:—|| 2-0 || Loose cumuli; id. ( 24 0 513 || 34-4 | 32-8 | 1-6 || 2-2 | 0-8 6 4: 0:31 5-0 || Loose scud ; loose cumuli; cirro-stratous scud ; hail showers aroun 1 564 || 34-8 | 32-6 }2-2 11.0 |0-8| 6 || 4: 2:—|| 9-8 Id. ; id. ; id. ; id. 2 605 || 34-4 | 31-9 | 2-5 || 1-3 | 0-6 6 || 6:—:—|| 10-0 Id.; particles of hail and snow; id. 3 645 || 34-4 | 32-0 | 2-4 || 0-8 | 0-4 8] 8: 4:—l| 9-2 Id.; _cirro-stratous seud; cumuli to E. 4 665 || 33-5 | 30-3 | 3-2 || 0-4 |0-1 | 14 0-8 Id. ; id. on horizon. : 5 || 689 | 33-1 | 29-4 | 3-7 10-2 |0-0] 5 0-8 Id.; id. id. a 6 713 | 32-2 |28-8 13-4 10-1 |O1] 4 0-5 || Loose cumuli to E. ; slight cirrous haze on horizon. — 7 || * 740 | 27-7 | 26-6 | 1-1 ||}0-0 | 0-0 | 28 0-4 || Patches of cirro-stratous scud to N.; cir. haze to SW 8 764 || 24-7 | 25-0 | --- 0-0 |0-0 | 12 0-0 || Very clear; very faint aurora. 4 9 781 || 24-4 | 24-7 | ... |/0-0 | 0-0 | 18 0-0 Td. ; auroral arch 8° altitude. 10 804 || 25.2 | 25.3 | -.- 10-1 |0-0 | 20 0-1 || Streak of cloud to NE. 11 823 || 23.4 | 23-8 0-0,|0-0 | 24 0-0 12 834 || 23-7 | 23-3 | 0-4 ||0-1 | 0-0 0-0 13 || 29-859 || 23-4 |22.-9 10-5 ||0-1 |0-1 | 14 0-2 || Linear cirri to S.; auroral light to N. 14 873 | 21-3 | 21-3 | .-. 0-1 |0-0 | 20 0-1 Id. 15 878 || 21-3 | 21-3 | ... 0-1 | 0-1 0-1 Id. 16 876 || 20-3 | 20-3 | ... 10-1 |0-1 | 20 0-2 || Cirro-strati; cirri to S. 17 881 || 19-2 |19-2 | ... |}0-1 |0-1 | 22 0-2 Id. ; id. to SW. 18 878 || 19-2 }19-2 | ..: 10-2 |0-2 | 21 0-8 || Cirro-strati and cirri to SW. 7 19 874 |}18-1 |18-1 | ... 0-0 |0-0 | 18 0-3 || Thin cir. and cir. haze near hor., cum. low on EH. hoy 20 889 || 16-9 | 17-0 | ... || 0-0 | 0-0 | 20 0-5 || Cirro-strati and cirri. ( 21 896 || 19-8 | 19-6 | 0.2 | 0-2 | 0-1 | 22 0-5 Id. to SW. 22 882 || 23-0 | 22-3 |0-7 || 0-2 |0-0 | 22 0-2 || Clear; a few patches and streaks of cirri. } 23 876 || 25-7 | 24-5 | 1.2 |}0-0 | 0-0 | 30 0-2 || Slight cirrous haze on horizon ; cirro-strati to SW. zo (0 864 | 29-8 | 28-0 | 1.8 10-1 | 0-1 6 0-2 || Patches of cirri and cirro-strati to W. and SW.; thick haze to E, 1 840 || 33-7 | 31-6 | 2-1 ||0-2 | 0-2 | 10 0-3 Id. ; id. aa 2 802 | 39-1 | 33-7 |5.4 0-6 |0-5 | 15 ||: —:28]| 0-8 || Striated and vertebrated cirri; haze on horizon. — 3 763 | 40-8 | 35-3 |5-5 ||0-6 |0-5 | 14 1-0 || Masses of cirro-strati and cirrous haze to W. 4 727 | 40-1 | 35-3 |4.8 10-7 |0-5 | 16 ||—:19: 26 75 Cir.-cum. scud and loose cir.-str.; cirri; cirrous haze; faint ha 0 5 701 | 38-2 | 34-7 | 3-5 |0-5 | 0-3 | 14 || —:16:28]| 9-5 || Loose cir.-str.; mass of cir. lying NW byN.; cir. hazi 6 666 | 37-0 | 33-8 3-2 ||0-5 | 0-6 | 14 10-0 || Cirro-strati and cirrous mass. ‘3 ih 631 | 36-2 |33-4 | 2.8 0-8 | 0-6 | 16 10-0 || Cirrous mass. 8 599 || 36-2 | 33-6 | 2.6 ||0-7 |0-8 | 16 10-0 Id. ; dark. 9 549 | 35-9 | 33-9 |2.0 ||0-9 | 0-2 | 14 10-0 Id. ; id.; snow? id 499 | 36-2 | 34-4 |1-8 || 1-2 |0-4 |] 15 10-0 Id. ; id.; rain”? Il 440 | 35-8 | 34-6 | 1-2 ||0-9 | 0-8 | 16 10-0 Td. ; id.; rain”> 12 373 | 36-4 | 35-0 | 1.4 ||/0-8 | 0-5 | 15 10-0 Id.;? = rain? 13 || 29-319 || 37-0 | 35-8 | 1-2 || 1-2 | 0-4 | 16 10-0 Id. ;? rain? 14 | 283 || 36-7 | 35-9 |0-8 ||0-5 | 0-5 | 18 10-0 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. motions of the three strata of clouds, Se. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. ft Feb. 23¢ 20, Hexahedral particles of snow or hail, plano-convex ; snow outside, with an icy crystal within. Feb. 244 85, Zodiacal light to W. 2541", Many spots on the sun to-day, and for the last three days. Hovrty METEOROLOGICAL OBSERVATIONS, FEBRUARY 25—27, 1845. 157 THERMOMETERS. | WInD. ee ee | oa Dry. | Wet —_ any on marae clouded. Species of Clouds and Meteorological Remarks. ] 14. ) 10m, he eee in. 2. gi ‘ Tbs. | Ibs. | pt. pt. pt. pt. 0—10. 29-245 || 36-8 |36-0 |0-8 |0-6 |0-1 | 20 10-0 || Clouds rather broken; rain”? 225 || 37-7 | 37-1 | 0-6 || 0-2 |0-1 | 24 | 24:—:— 10-0 || Scud; rain? 213 || 39-1 | 38-1 |1-0 | 0-4 |0-3 | 24 || 24:—:—]| 10-0 Id.; cirrous clouds; rain at intervals. 215 || 40-4 | 38-4 |2.0 || 1-2 | 1-0 | 25 | 24:26:—}) 4-0 || Patches of scud, very low; watery cir.-str.; corona. )) 220 || 39-9 137-9 |2-0 || 1-3 | 1-2 | 25 9-8 Td cirro-strati. 241 || 41-0 | 38-7 | 2.3 || 2-2 | 1-6 | 27 ||} 28:—:—|| 10-0 Id. ; id.; _ cirrous mass. 265 ||41-1 |39-0 | 2.1 || 2-2 |1-7 | 26 || 26:—:—]) 10-0 || Dense homogeneous mass ; patches of scud ; rain’” 295 || 41-3 | 39-2 | 2-1 || 3-1 |1-6 | 28 10-0 IG Be rain! 312 || 42-5 |39-8 | 2-7 || 2-2 |1-8 | 30 || 29:—:—|| 10-0 || Scud; cirrous mass. 375 || 41-0 | 39-3 | 1-7 || 1-8 | 1-0 0 || 29:—:—}]| 10-0 ides id. ; rain?” 408 || 39-7 | 38-2 | 1-5 || 0-7 |0-6 | 31 10-0 || Id.; id. 443 || 39-4 |37-6 |1-8 | 0-9 |0-6 | 31 0:—:—|} 10-0 || Loose seud ; cirro-strati; cirrous mass. 472 || 39-2 |37-3 |1-9 || 0-5 |0-3 | 31 0:—:—|} 10-0 iGhe noes id. 500 || 38-8 | 37-7 |1-1 0-3 |0-2 | O || 1:—:—|| 10-0 Id. ; id. ; id. ; rain”? 512 || 39-4 |38-0 | 1-4 | 0-3 | 0-2 1 |} 2:—:—]| 10-0 Id. ; id. ; id. 541 || 38-7 |37-6 |1-1 ||0-3 |0-1 | 12 |) 4:30:—J]) 10-0 Id. ; cirro-stratous seud ; cirro-strati, red to E. 562 || 37-6 | 36-7 |0-9 || 0-1 |0-0 10-0 || Cirro-stratous scud. 580 || 37-2 | 36-4 |0-8 | 0-0 |0.0 10-0 || Very dark. 595 || 36-8 | 36-3 |0-5 | 0-0 |0-0 10-0 Id. 610 || 36-6 | 36-2 |0-4 | 0-0 |0-.0 | 2 10-0 Id. 628 || 36-6 | 36-0 | 0-6 || 0-0 | 0-0 10-0 || Overcast with dense clouds; rain”? 654 | 36-3 | 35-8 |0-5 |0-0 |0-0 | 2 10-0 Id. ; id. 29-661 || 34-7 | 34.3 |0-4 || 0-0 |0-0 | 20 7-0 || Cirro-cumuli ; cirro-strati. 677 | 33-4 |33-1 | 0-3 || 0-0 | 0.0 | 30 6-5 Id. ; id. 690 || 32-2 | 32-1 |0-1 |)0-0 | 0-0 0 3-0 Td. to S.; milky to N. 701 | 31-9 |31-7 |0-2 | 0-0 |0-0 | 4 || 6:—:—J]| 8-5 || Seud in detached masses ; cirro-cumuli to S. 711 || 30-4 | 30-3 |0-1 ||0-0 |0-0 | 22 3-0 || Cirro-cumulous seud ; cirro-cumuli. iy 724 || 32-1 |32-0 |0-1 | 0-0 |0-0 | 24 10-0 || Thick scud and cirro-strati. 743 || 32-5 | 32-3 |0-2 | 0-0 | 0-0 2:—:—|| 10-0 Id. ; red opening to E. 756 || 32-7 |32-5 |0-2 ||0-1 |0-0 | 18 || 3:—:—|| 9-5 || Loose seud; cumuli to N. 771 | 34-8 | 34-7 |0-1 | 0-1 |0-1 | 18 || 5:—:—J]| 8-0 || Seud and loose cumuli; cumuli; cirro-strati; cirri. 781 || 35-8 | 35-0 |0-8 | 0-2 |0-1 4 0-5 || Cumuli; cumulo-strati; cirro-strati; haze on hor. © 786 |\ 37-6 | 36-2 | 1-4 | 0-2 0-2 4 |) 4:—:—] 2-0 Td. ; cirro-strati; haze on horizon. (0) 790 || 41-2 | 39-1 | 2-1 || 0-1 |0-2 | 11 3:—:— 6-5 || Scud and loose eumuli; cirro-strati. (0) 789 || 41-3 | 36-8 | 4-5 | 0.4 | 0.2 2 4:—:— 9-5 ids5 id. (0) 776 || 41-5 | 37-6 |3-9 || 0-3 |0-3 5 || 6:—:—]| 9-5 || Seud; loose cumuli and cumulo-strati, [s) 769 || 42-8 | 38-4 |4-4 |/0-3 |0-5 | 5 || 9:—:—|| 9-0 || Id.; cirro-stratous scud; cirri.* (5) 770 || 39-3 | 35-4 |3-9 | 0-4 |0-2 7 |—:10:28 6-5 || Cirro-stratous scud ; linear cirri. 766 || 39-7 | 35-6 |4-1 | 0-6 |0-5 | 6 ||\—: 9:28] 7-0 Id. ; id. ; halo. (0) 774 || 38-6 | 34-9 |3-7 | 0-6 |0-3 | 6 3-5 || Scud; cir.-str.; cirri and cir. haze ; cum.-str. on E. hor. 779 || 33-6 | 32-6 | 1-0 | 0-3 |0-1 8 2-0 || Id.; id; mot. cir.; cir. haze; id. 776 |\ 33-9 | 32-8 |1-1 | 0-0 | 0-0 6 4-0 || Scud and cirro-strati. 780 || 33-4 | 32-6 |0-8 | 0-0 |0-0 | 6 10-0 || Overcast. 790 || 34-3 | 33-4 |0-9 0-3 |0-1| 8 10-0 Id.; sky clouded = 6 at 95 30". 786 || 35-6 | 34-0 |1-6 || 0-3 | 0-3 8 10-0 || Scud and cirro-strati. | 794 || 35-8 | 33-8 |2-0 |/0-2 |0-1 | 7 10-0 Id. 29-795 || 35-2 | 33-2 |2-0 ||0-2 |0-1 | 7 10-0 || Scud and cirro-strati; dark, - 790 || 35-0 | 32-6 |2-4 0-2 |0-:0| 8 10-0 tds; id. 775 || 35-0 | 32-7 |2-3 || 0-1 |0-0 | 10 10-0 Id. ; clouds breaking. 766 ||35-3 | 33-3 |2-0 ||0-1 |0-0 | 8 10-0 Id. 768 || 34-8 | 33-7 |1-1 | 0-3 |0-1 | 12 10-0 Id. ; drops of rain, 769 || 35-3 | 33-7 |1-6 || 0-2 |0-2 | 12 10-0 Td. 764 || 35-1 | 33-4 | 1-7 | 0-4 |0-5 | 13 | 12:—:—J]| 10-0 || Dense seud. 773 || 35-3 |33-2 |2-1 ||\0-6 |0-5 | 14 | 12:—:—|| 9-8 || Seud; cirro-stratous scud. 791 || 35-7 | 33-1 | 2-6 | 0-8 |1-0 | 14 ]13:14:—]| 9-5 || Id.; id. 787 |\ 36-6 | 34-1 }2-5 11-1 10-6 | 14 1113:13:—1! 9-5 || Loose ragged seud; cirro-stratous scud. 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 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. Maximum 2 Cs. Ci, Sky r force in |clouded. Uh LO, Wet. 2 to Wwe HFOODRRNHHWW ws OONaurwnrowr | Scud ; loose cumuli; cirro-stratous scud. | Id. ; aks ‘ iy Ldsts id. ; loose cirro-strati. | Id.; id. ; id. ; patches of cir. © | a.;s id. ; thin cirri. ( Woolly cir. ; massés of seud ; cir.-str. ; part of a halo. © ' Masses of scud; cirro-strati. ’ Scud ; cirro-strati; woolly cirri. ads id. Chiefly thin clouds ; lightish to W. _ Clouds to E. | Cirro-strati? to E.; sky milky; hazy on horizon.* | Id. ; id. ; id. ee oo Oe Ke haHKwWA~IG | Cirri ; cirrous haze ; sky milky ; hazy on horizon.* joe; id. ; 61s Bas faint aurora ? | Cir.-str. ; cir. ; cir. haze ; id.; id. Id. ; cirrous haze. | Id. ; id. | Id.; id. ; much thicker. | Scud and cirro-strati; reddish to E. Cirro-strati; cirrous mass. | Dense cirro-strati ; fine mealy snow’? des id. Id. ; flakes of snow. Send? dense cir.-strati; id. WN eee ee ocoooumanaonwn snow’? snow! | Id.; id. ; snow!”? ite ras snow” | Homogeneous mass of cirro-strati ? snow? | As before; snow"? 1 *) | Id.; snow’? | Id.; snow’? snow!” -; sky clouded = 9°8 at 11" 30™. Sunday. a.m. Generally clear; loose woolly cirro-str. { p.m. Overcast with dense cirro-strati. |Seud; stars dim; sky milky to N. | | Id. | Misty scud; rain’ | Id.; rain’”; clouds yellow to E. Seud. moying very slowly. . . : : :—: B dense mass of cirro-strati. 34-0 | 2. : 2 —— 5 ES id. " ‘Phe 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. Feb. 284 9», The water in the wet bulb cistern is not freezing. Feb, 284 12, he 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. Hourty METEOROLOGICAL OBSERVATIONS, Marcu 3—5, 1845. THERMOMETERS. WIND. 5 k jae Shas Species of Clouds and Meteorological Remarks. Dry. | Wet. | Dif. |] f°" From i 12,| 10™ a 35-5 34-3 33-5 33-2 32:8 32-5 31-6 31-6 31-7 31-1 30-8 30-7 30-9 31-7 31-5 32-0 34-7 35-2 34-6 33-8 34-7 34.5 34.0 id. ; snow ! 34-4 . 3 Send; cumuli; cumulo-strati ; cirro-strati; snow? 33-5 8 | 1- : . as: - Id.; cirro-stratous seud ; cumulo-strati to E. 32-0 H . . uNGE : Cirro-cumulous scud. 30-7 . . : : Id., radiating from NNW. 29-7 - : - : : Cirro-stratous scud on E. horizon. 27-3 F : | : . ads zodiacal light visible. 25-5 tee : . : Cirro-cumulous seud. 27-3 : : - - Loose seud; cirro-strati; flakes of snow. 29-9 : . D : id. 29-7 29-1 26°5 22-8 : se {| 0- : : Clouds near horizon. 23-0 . ss 1 0- : E Snow °? 24-9 : . : 5 Snow! 26-3 : . : : Snow? 27-7 Cirro-cumuli ; snow "? * 28-2 Seud and cirro-cumuli. 30:3 Seud; cumuli; cirro-strati on horizon; snow” 30-0 Cirro-cumulous scud ; snow 9” 31-8 1hBS cirrous haze. | 32-4 Send ; cirro-cumuli; fine cumuli to SW. and NE. 33-2 | 30-7 Td. and loose cumuli ; id. on horizon. 32-7 | 29-4 Loose cumuli and nimbi; snowing around. 33-4 | 29-7 Scud ; cumuli and nimbi; flakes of snow. 32.9 | 29-3 Id. ; id. ; snowing around. 30-8 | 26-8 Id. ; id. 27-1 | 25-3 Cumulo-strati and haze on horizon. 26-4 | 24.6 Clouds near horizon. ; 24-0 | 23-3 Thin clouds. | 27-6 | 25-9 Snow ° | 27-6 | 26-7 Snow? 23-7 | 23-7 Clouds to E. direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, B.=8, S.= 16, W. = 24. of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. The snow has melted on reaching the ground, throughout the day. . Observation made at 6 20™. || Seud; dense mass of cir.-str.; a few fine particles of snow. Ids Id. ; Id. ; iat? ids: i Cirro-strati; cirri; cirrous haze; sky milky. Id. 2 Cirro-strati 2 Id. 2 ihe cirri ; cirrous haze; stars seen. Id. ; id. ; id. Id. ; id. ; id. de. broken to E. Id. ; ders flakes of snow. Id. 5 dense cirrous mass ; sky to 8, ; haze to N. Cirro-strati and dense cirrous haze. e Patches of scud ; cirro-stratiand dense cirrous haze. @ Loose sceud; cir.-str.; cir. mass; haze; flakesofsnow. @ Cirro-strati; dense cirri; haze; snow! id. ; id.; snow”? id. 2>S9S9S99992 af Sa eee hee 1) ORO nee ae ee Ge DK KH WON BR Re Re Re KE ORF eS Ye Ne ee eS Om Re WOR Wwe ©OO0e O00 O DNOKAUNOOCABDNUNIALA _ to THERMOMETERS. WIND. Maximum Sky ‘ icipated Species of Clouds and Meteorological Remarks. Wet. iff. orce in 4 Snow? Scud. Flakes of snow. Stars dim. Scud ; snow"? Id. ; Dense mass of cirto-strati; snow"? Cirro-stratous seud ; cirro-strati; flakes of snow. Id. ; snow? Ndi id. Id. GbE snow?” Id. Td. Id. Id. Td. Td. ras; sky toSW. Clouds broken ; stars dim. Seud. Td. Td. Cirro-stratous seud ;? sky on zenith, Id. 2 Id. ? Id. ; ? drops of rain. Td. 2 Id. ? Cirro-cumulo-strati ; day-break. Scud and cirro-cumulo-strati; loose cumuli. Id..; id. ; haze. Seud ; dense cirro-stratous scud and cirro-strati. Id.; cirro-stratous scud. Id. ; nde rain?? Cirro-cumulo-strati; cirro-strati. Scud. ; cirro-strati. Id. ; id. ; a few hail-stones. Id. ; id. [eirro-str Low detached masses of seud ; ragged cumulion N. h Smoky scud; cirro-stratous scud. Seud ; id. Id. ; id. Tass id. Tidy. id. Id. ; id. Id. ; id, Id.; dark. Td. ; id. Id. ; id. Id. ; id. Td 3s id. Id. ; id. Id. 4:—:— D Id. 4h = — . Loose scud ; cirro-cumulo-strati ? OBDNIAUkWwWNWr Ot COMPHEE Ber OoOOOORH ON bBo FN DODO wrohy eH 35-0 37:8 38.3 37-3 37:8 37-2 39-2 | 37-2 165 || 38-6 | 36-7 163 || 37-5 | 35.8 161 || 37-3 | 35-7 163 || 37-3 | 35.7 161 || 36-9 | 35-6 156 || 37-0 | 35-8 149 || 57-4 | 36-0 30-140 || 36-9 | 35-9 137 || 37-4 | 35-9 131 || 37-7 | 36-4 118 || 38-1 | 36-7 117 || 38-6 | 37-1 115 || 39-1 | 37-6 117 || 39-4 | 37-9 121 || 40-0 | 38-4 0 1 1 2 2 4 2 2 2 4 4 1 2 0 1 0 Spe nS Sse Ses Aannnhbhdads PHwaane wnwoosrsuRr Oo FOoOrnNhy 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 20, White smoky scud rising, as if from a fire, on N. horizon. Shower of hail since 194. Hourty METEOROLOGICAL OBSERVATIONS, Marcu 7—11], 1845. 161 THERMOMETERS. WIND. Clouds, RE a eee nn lous (Wear! Oi METER pee re eg Peete Species of Clouds and Meteorological Remarks. at 32°. || Dry. | Wet. | Diff.|| *O°°° > [From from 7 14, |10™. ih. in. ° ° ° Tbs. } lbs. pt. pt. pt. pt. 0—10. 91 || 30-131 || 40-0 | 38-6 | 1-4 || 0-6 | 0-6 2 || 4:—:—|| 10-0 || Loose seud; cirro-cumulo-strati? cirro-strati. 22 144 || 41-0 |39-0 | 2-0 |}0-8 |0-6 | 2 || 4:—:—]| 9-9 Id. ; id. ; id. 9 153 || 42-3 |40-0 |2-3 |}0-9 |0-5 | 3 || 4: 5:—] 9.9 igh id. ; cumuli to N. 0 165 ||41-6 | 39-8 | 1-8 }}0-8 |0-9 2) 4: 5:—] 99 Id. ; cirro-cumuli; woolly cirro-cumuli. 168 | 43-3 | 40-2 | 3-1 1:0 |0-8 | 2 || 4: 5:—] 9-9 Id. ; id. ; id. 2 167 |/44-0 | 40-7 | 3-3 1-2 |1-.0 | 3] 4: 6:—]) 9.5 || Scud; cumuli; cirro-cumulo-strati. 3 162 || 43-7 | 40-8 | 2-9 || 1-2 | 1-2 3] 4:—:—] 9-0 Id.; woolly cirro-cumuli. (s) 4 162 || 44-8 | 41-0 | 3-8 |} 1-5 |0-5 Q| 2: 4: 6] 9-9 Id.; cir.-str. scud; cir.-str.; 4% 8™, hail-shower. ; 165 || 42:3 | 40-3 |2-0 1-2 |1-7 | 4] 3: 5:—]| 10-0 Td. ; id. ; showers of rain since 44, 6 172 || 40-6 |39-2 | 1-4 |} 1-5 |1-2 | 3 | 3:—:—]| 10-0 || Dense seud; rain!—? 7 173 || 40-3 | 39-3 | 1-0 0-9 |0-8 | 2 || 10-0 Id. ; id. 8 190 || 40-4 | 39-6 |0-8 |} 1-1 |0-7 | 2 | 10-0 Id. ; rain”? 9 196 || 40-6 | 39-7 | 0-9 ||0-7 |0-6 3 10-0 Id. ; rain occasionally. 10 210 || 40-8 | 39-7 | 1-1 ]0-8 |0-5 | 3 10-0 || Very dark. j 11 222 || 40-2 |39-2 |1-0 0-6 |0-4 | 3 10-0 Id. 2 234 || 40-2 | 39-2 |1-0 0-5 |0-4 | 3 | 10-0 Id. 234! 30-244 || 42-3 | 39-6 | 2-7 0-6 |0-1 | O }|}—: 4:—]| -.---- Sunday—Overcast ; cirro-cumulo-strati; scud. 30-156 || 40-6 | 38-3 | 2-3 || 0-9 |0-6 0 10-0 || Send. 147 || 39-4 | 37-7 | 1-7 || 0-6 | 0-1 0 9-5 Id., &c. ; slight shower lately. 131 || 38-8 | 37-3 | 1-5 |}0-3 |0-1 | 0 9-8 || Id.; cirro-cumulo-strati? sky milky. 123 || 39-7 | 37-6 | 2-1 || 0-4 |0-1 0 10-0 Tes id. ; aurora seen to N. 112 || 39-9 |37-6 | 2-3 ||0-4 |0-4 0 10-0 Id. ; id. ; drops of rain. 101 || 38-9 |37-4 | 1-5 ||0-7 |0-6 | 29 10-0 Id. ; id. ; 184 10™, shower? 083 || 38-9 |37-5 | 1-4 ||0-5 |0-6 | 30 || 2:—:—J| 10-0 |! Loose seud and cirro-stratous scud. 089 ||39-2 |38-0 | 1-2 |}0-4 |0-2 |20v.)|) 4:—:— 9-9 Id. 082 || 41-0 | 39-6 | 1-4 || 0-4 |0-3 | 29 10-0 | Dense mass of cirro-strati; nearly homogeneous. 077 || 40-4 |39-7 | 0-7 ||0-3 |0-2 | 29 10-0 Id. foggy ; 214 50™, Scotch mist. 060 || 43-7 |41-7 | 2-0 ||0-3 |0-4 | 30 ]}|—: 1:—|| 10-0 Td. 046. || 45-2 | 42-2 | 3-0 0-7 |0-7 | 1 ||—: 1:—]] 9-9 || Cirro-stratous seud ; cirrous mass. 036 ||46-0 | 42-5 | 3-5 |/0-8 |0-7 | 31 2:—:—|| 10-0 || Seud; cirrous mass. 018 ||45-8 |42-2 |3-6 ||0-7 | 0-4 0 || 2:—:—|] 10-0 Id.; cirro-stratous scud. 30-001 || 46-3 | 42-4 |3-9 || 0-4 |0-3 | 30 || 0:—:—| 10-0 Id. ; id. 29-972 ||46-5 | 42-1 | 4-4 || 0-4 |0-3 | 30 ||—:30:—|| 9-9 Td. ; ade cumuli on E. horizon. 948 || 46-1 |41-5 |4-6 || 0-5 |0-2 | 30 || —:29:—|| 9-7 || Cirro-stratous scud ; loose cumuli and scud. 937 || 44-7 |40-8 | 3-9 || 0-4 |0-2 | 29 || 30:31:—|| 9-5 || Seud; cirro-stratous scud ; clouds coloured. 928 || 43-5 |40-6 | 2-9 |/0-2 |0-2 | 29 | 30:—:—|! 10-0 || Heavy electric_looking masses of scud.* 958 || 37-5 |36-4 | 1-1 |} 2:5 |1-7 | 2 10-0 || Seud; rain®® 966 || 36-8 | 34-9 | 1-9 || 3-0 | 1-0 1 9-8 Id.; sky to NNE. 960 || 36-4 | 33-5 |2-9 2-5 |3-0] 1 10-0 || Id.; shower of fine-grained snow! 953 || 35-2 |32-1 | 3-1 || 3-7 |2-7 | 0 6-0 Id. 961 || 33-0 |30-0 | 3-0 || 2-2 |0-5 0 2-5 Id. 3 || 29-957 || 33-2 | 29-8 | 3-4 |/2.9 |1-7| 0 9-8 || Scud ; shower of snow"? 941 || 32-2 | 28-9 |3-3 11-8 |1-7 | 0 1-0 Id. 928 || 31-0 | 28-1 | 2-9 1-8 | 1-3 | 31 1-0 Id. 900 || 30-7 | 27-7 | 3-0 |} 1-4 ]1-9 | 31 0-8 Id. 890 || 30-7 | 27-3 | 3-4 |}2-3 |0-8 | 29 1-0 || Id. 881 || 29-4 | 27-0 | 2-4 || 1-4 |0-5 | 29 0-7 || Id. 873 || 30-6 | 26-9 | 3-7 |}1-0 |1-1 | 29 || 1:—:—]| 6-0 || Thin seud. 859 || 31-2 | 29-5 | 1-7 2-1 |1-6 | 29 |} —: 1:—]} 5-0 || Cir.-cum.scud; snowshowersatintervals; snowing around, 871 | 32-8 | 31-6 | 1-2 |} 1-2 |1-5 | 29 |} —: 1:—]| 8-5 Id. ; snow? 853 || 33-8 | 31-4 | 2-4 || 1-4 | 1-3 | 31 1:—:—]| 1-5 || Thin seud; cumuli and cirro-strati on horizon. (0) 873 || 35-7 | 32-4 |3-3 || 3-0 |2-5 | 31 ||31: 0:—|| 9-0 Id. ; cir.-cum.-str. ; cir.-str. ; cum. to S. ; nimbi. 869 || 34-3 | 31-3 | 3-0 || 2-5 |1-6 | 31 || 0:—:—J]| 1-0 || Scud; loose cumuli; haze on horizon. (0) 858 || 35-8 | 32-3 |3-5 || 2-3 |2-3 | 30 || O:—:—]| 2-5 Id. ; id. ; cumuli and cirro-strati. (0) 831 || 37-1 |32-4 |4-7 13-6 |2-3 | 31 ||31:—:—|| 2-5 Td. ; id. ; id. Observation made at 04 5™, The ice removed from about the vane of the anemometer ; some of the last indications of the anemometer are too small, 2 vane was fixed, with the opening towards N by E. additional Meteorological Notes after the Hourly Meteorological Observations. AG, AND MET. oBs. 1845. 2s THERMOMETERS, WIND, Gott. Baro- Sk Mean || METER Maximum : Ae Time. |} at 32°. Dry. | Wet. | Diff. force in Prom cate! Species of Clouds and Meteorological Remarks. ti. i= 31 :—: : Scud ; cirro-strati; nimbi. 31 :—! : Id.; loose cumuli; id. Id. 5 id. ; id. Cumulo-strati ; nimbi and cirro-strati on horizon. Scud; cumulo-strati; nimbi; cirro-strati. Cumulo-strati, &c., on horizon. Clouds on horizon. Id. Id. Id. Clouds on horizon, principally to E. 1G id. Seud ; snow! Id.; snow? Clouds to E. Woolly cir.-cum. ; cum.-str. on E. and N. horizon. Cumuli and cum.-str. to E. and N,; cir.-str.; patches of cirri, C Loose cum. to E. and N.; nimbito NW. patches of cir.@ Camuli and seud, both white. lo Id. [snow. © Id. ; thick watery cloud to E., falling in Seud and cum. ; sheets of watery cloud. Loose cumuli and cumulo-strati. Id. ; 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" Ids id. Td. Id. Cirro-cumuli and cirro-stratous seud; cirro-strati. Cirro-cumulo-strati to SE. Td. and haze on E. horizon. Patches of scud and haze. Td. Patches of seud and cirro-strati. Patches of cirri to N. Id. eos oo Nor wwweteeees ouaudm®sS}oHMoTpeR WE 24-8 25-4 27-3 29-2 30-6 32-9 34-2 34-9 Patches of cumuli; cirro-strati. 34-8 Cumuli and cirro-strati on horizon. 33-5 : . . - Asie : Loose cirro-strati and cirro-cumuli; cum.-str. to 30-7 : : + : g a0): -02 Id. and cirrous haze. 29-2 | 26- . : : 3- Cirro-strati ; thin cirri; lunar corona, | 28-0 : 5 : : : Cirri. 500 | 27-1 : : . : . Hazy on E. horizon @ SHOMNOUBwNe i The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, BE. = 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. March 12219. Ice removed from the vane of the anemometer. March 134 22h, weh 144 21h, Hourty METEOROLOGICAL OBSERVATIONS, Marcu 13—16, 1845. THERMOMETERS. WIND. Dry. | Wet. | Diff. 24-0 24.3 23-9 24-9 25-2 25-3 26-5 26-5 25-6 26-3 26-7 27-0 26-0 24-0 22-8 25:3 26-4 28-8 28-9 31-5 35-2 30-9 34-3 32-7 29-2 28-3 27-7 27-2 26-0 25:3 25-5 23-8 24.0 23-8 23-0 23.0 19-6 29.0 23-0 21.6 18-8 25-0 25-6 31-6 30-6 28-6 28-7 30-7 25.9 25.3 22.8 21.3 21-8 21.4 18-6 17-2 30-7 26-0 26-2 26-6 26-2 20-6 20-8 20-2 17-9 17-0 28.6 25-4 25-0 25-7 25-1 A Se rats arr grmay tele hs ts wa — wINPSNHAAGAUISIUBS ie > ER > © 1-1 Maximum force in 14, } 10, SCOrONNWE bo wrkawIs08 00S ww OPNDANTIRANK KR WRO Clouds, Se.: C.-s.:Ci., moving pt. sla from pt. pt. lellolsephaldastetistst lol | Sky clouded. Species of Clouds and Meteorological Remarks. Sheets of thin filmy cirri, chiefly to N. y Patches and sheets of thin cirri. ») Thin cirri and haze over the sky. Thick clouds to E.; haze; stars dim. Cirro-strati and cirrous clouds. Cirro-strati near horizon. Cirro-strati to E. Cirro-strati and cumulo-strati to E. Cir.-str. scud; coloured to ESE. ; purplish to WNW. Id. (0) Id. ; cirro-strati. (0) Wavy cir.-str. and cir.-str. scud ; cum. on SE. horizon. Cirro-stratous scud ; particles of fine hail. Id. ; ceirro-strati ; nimbi. Id. ; id. ; Seud; woolly cirri; mass of cir.; cir.-str.; cum.-str. Id.; cirro-stratous scud; flakes of snow. Id.; cirro-cumuli; cirrous-mass ; stormy-looking. Id.; cirrous clouds; snow ! Id. ; dss id. Nearly homogeneous. Cirro-stratous seud. Clear; one or two patches of cirri. Seud. Seud; sky milky to N. and E. Cirro-cumulo-strati ; bank to W. 0) loosescud; cir.mass.Q (0) vy yvYy Cirro-cumulo-strati. Seud ; shower of snow since last observation. Id. Id.; snow; Id. Id.; snow? Id.; cirrous haze; snow ceasing. Id.; cirro-stratous scnd. Cirrous-like scud ; loose cirro-cumuli; snow ! Scud ; loose ragged cumuli; haze ; snow occasionally. Loose cumulo-strati around; fine blue sky. Seud and loose cumuli; passing showers of snow. Id. Shower of snow 4 Scud ; ecumulo-strati and nimbi. Thin fleecy scud, rather high ; nimbi; shower of snow! As before ; shower to E. Id.; = nimbi. id.; haze. OOO © joXoXoXo) Cirro-cumulous scud. Id. Id. Sunday—Overcast ; light showers of snow occasionally. Yvuvyv Seud; flakes of snow. Id. Id. ; Td. id, weh 134 15%, The vane of the anemometer found frozen up, with the opening towards SW., ice removed ; the wind commenced to blow Observation made at 22> 5m. [about 14" 20™, Flocks of lapwings, plovers, and herring-gulls, moving westward : particles of snow at 2». Observation made at 215 6™, ch 144 23h. Snow 4 inches deep. 164 Hovurty METEOROLOGICAL OBSERVATIONS, Marcu 16—19, 1845. THERMOMETERS. WIND. Maximum Sky ; it clouded Species of Clouds and Meteorological Remarks. orce In 1 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. dea? Nearly homogeneous mass of cirro-strati; sky to N. Id. ; id. Cirro-strati, breaking in zenith. Id. Id. Id. Cirro-strati ; cirrous mass. Id. ; id. ; 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. Td. Cirro-strati and cirrous mass. Dense cirro-strati; rather hazy. Id. 3 Id. Cirro-cumulo-strati ; cirro-strati; haze. Id. to S. IGE.S cirro-strati ; haze. q 1h ides id. on horizon. — Woolly cirro-eumnuli; haze. Cirro-stratous scud ; woolly cirri; cirro-strati. Loose cirro-cumulo-strati ; very hazy atmosphere. Scud ; cirro-stratous scud ; showers to N.? eles; id. 3 rain®?; sky to NW. Cirro-cumulous scud. dis aurora @ Seud or cir.-str. to S. ; bands of cir. to N. ; faint halo. Linear cirri scattered over the sky; halo. Cirri to SE. Clouds to NW. and SE. ; clear. .|| Cirro-cumulo-strati. Seud. Clouds on E. horizon. Seud, &c., on E. horizon. Thin cir.-cum.-str. ; cum. and cir.-str. seud on horizor Cirro-stratous scud ; thin cirro-cumuli. Thin cirro-cumuli ; cirro-strati. Scud and szro-cumulo-strati ; flakes of snow. Td. q | Seud ; loose cumuli; cirro-cumulo-strati. He eee Ph NJwnowow or 33-4 34-0 33-5 1-6 0-9 1-5 2.3 3-5 4-6 5-0 6-1 7-2 7:3 7:5 71 4:8 3-6 2:3 1:5 1-1 1-2 2.0 0-9 1-4 1-2 1-9 1-7 1-3 1-6 1-7 2.2 2-5 2-7 3-1 March 174 5%. The observation of the barometer was omitted, the reading given is a mean of the preceding and succeeding observation! March 174195, Kelso town bell (4 miles distant) heard very distinctly. “4 March 184 68. Brownish atmospheric haze, very dense and even electric-looking from NW. to E.: the sun projects a strong shadow 0 the clouds in the haze. 7. Scud, forming in ragged strings below the cirro-stratous scud, and falling in showers? to N. HovurLy METEOROLOGICAL OBSERVATIONS, Marcu 19—21, 1845. 165 THERMOMETERS. WIND. Clouds, eee Maximum ee Pach Species of Clouds and Meteorological Remarks. at 32°. || Dry. | Wet. | Diff. force in | From reba ; 1h, {10™, in. * x i Ibs. | lbs. | pt. || pt. pt. pt. 0—10. 29-619 || 33-2 | 29-0 | 4-2 || 1-8 | 1-7 0 || 0:26:—| 5-0 || Scud; loose cumuli; cirro-cumulo-strati. (0) 635 || 33-2 | 29-0 |4-2 2-5 |1-7 | 31 || O:—:—]| 6-5 Id. ; id. cirro-strati. oO 645 || 33-3 | 29-0 | 4:3 || 2-3 | 0-7 1 0:29:—) 9-0 Id. 5 id, ; cirro-cumulo-strati. 653 || 33-4 | 29-1 | 4-3 || 1-3 |0-9 0 | 30:—:— 8-0 Id. ; id. ; id. 671 || 30-9 | 27-5 | 3-4 || 1-1 |0-8 | 31 |/31:—:—] 5.0 Id.; cirro-cumulo-strati. 682 || 31-7 | 27-6 | 4-1 | 1-2 |1-1 | 31 |}31:—:—}| 6-5 || Id; id. 711 || 30-7 | 27-4 | 3-3 0-9 | 0-5 | 31 | 9-0 Td. id. 728 || 28-3 | 25-5 | 2-8 | 0-5 |0-2 | 30 1-5 Id. ») 744 127-9 | 25-4 | 2-5 |10-3 |0-1 | 29 |30:—:—]| 9.8 Id.; cirro-cumulo-strati, causing a lun. cor. at 9" 30™. 753 || 27-6 | 25-3 | 2-3 ||0-7 |0-6 | 29 2-0 || Id.; ady 5 sky very clear. ») 765 || 25-8 | 23-9 | 1-9 | 0-8 |0-3 | 28 0-5 || Cirro-stratous scud to E.; auroral light. ») 773 || 25-8 | 23-8 | 2-0 | 0-3 |0-3 | 29 | 0-5 Id. ; id. y 13 || 29-783 |) 25-5 | 23-0 | 2-5 | 0-3 |0-3 | 29 0-5 || Cirro-stratous scud to E.; faint auroral light, y 790 || 24-9 | 22-9 |2-0 || 0-4 |0-3 | 25 0-5 y 793 || 25-0 | 22.9 | 2-1 ||0-5 |0-4 | 25 0-0 y 808 || 23-6 | 21-7 | 1-9 || 0-3 |0-2 | 24 0-0 y 824 || 24-9 | 29-6 | 2-3 || 0-4 | 0-2 | 25 0-0 ») 846 || 25-0 | 22-5 | 2-5 || 0-5 | 0-4 | 25 0-1. || Clouds on E. horizon. 865. || 25-0 | 22-5 | 2-5 ||0-9 | 0-5 | 28 0-1 Id. 878 || 26-0 | 23-4 | 2-6 || 0-7 | 0-7 | 29 0-1 || Cirro-strati on E. horizon. 0} 896 || 29-0 | 26-0 | 3-0 || 1-0 | 0-9 | 29 0-1 Id. (0) 924 || 31-1.) 27-1 | 4-0 || 1-3 | 1-2 | 29 0-2 || Cirro-strati to E. [o) 942 || 32-7 | 28-0 | 4-7 || 1-2 | 0-5 | 29 0-3 || Cirro-strati on E. horizon. (o) 958 || 34-0 | 28-7 | 5-3 || 0-7 | 0-4 | 28 0-2 Id. on NE. horizon. (0) 968 || 36-0 | 29-8 | 6-2 || 0-5 | 0-5 | 27 0-2 || Cirro-strati and haze on E. horizon. (0) 972 || 37-0 | 30-3 | 6-7 || 0-5 | 0-4 | 28 0-1 || Cirri to S.; haze or stratus on horizon. (o) 971 || 37-2 | 30-8 | 6-4 0-4 |0-3 | O 0.2 Id. ; id. {0} 969 || 37-5 | 31-0 | 6-5 ||0-2 |0-0| 4 0-1 Id. ; id. (0) 9-987 || 37-9 | 32-2 |5-7 0-2 |0-2| 7 0-0 || Hazy on horizon. (0) 30-004 || 35-2 | 32-2 |3-0 ]0-2 |0-2| 7 0-1 || Cirro-cumulo-strati to W.; haze. (0) 025 || 30-6 | 28-1 | 2-5 || 0-1 | 0-0 0-8 || Cirri; cirro-strati ; much haze on horizon. 064 || 29-1 | 26-9 | 2-2 0-1 | 0-0 | 16 3-0 || Thin cirri and cirrous haze over the sky. } 076 || 28-0 | 26-6 | 1-4 || 0-0 | 0-0 | 20 1-0 || Sky very hazy. ») 078 || 28-5 | 27-0 | 1-5 || 0-1 | 0-0 | 20 4-0 || Woolly and linear cirri and cirrous haze. ») 082 || 26-0 | 24.7 | 1-3 |) 0-1 |0-0 | 21 |}—:29:—]) 5-0 || Thin and loose cirro-cumuli ; cirri in belts.* »») 084 || 27-6 | 25-9 | 1-7 || 0-2 |0-2 | 20 || —:29:—|| 9-0 || Cirro-cumuli; cirri. >} 30-084 || 27-2 | 25-6 | 1-6 || 0-2 |0-1 | 21 0-8 || Cirro-cumuli ; cirri. ») 096 || 25-4 | 24-2 | 1-2 |/0-1 | 0-1 | 22 0-0 || Sky milky ; faint aurora. y 082 || 22-8 | 22-3 | 0-5 || 0-1 | 0-0 | 20 1-0 || Cirri; faint aurora. »)) 069 || 23-4 | 22-3 |1-1 | 0-0 |0-0 | 18 1:0 || Bands of thin cirri to W.; wilky cirri. y 056 || 23-0 | 22-3 | 0-7 || 0-2 | 0-2 | 19 2-0 Id. ; id.* 064 || 24-1 | 23-3 |0-8 || 0-1 |0-1 | 14 || —:—:30]| 4.0 || Woolly cirri; cirro-strati; red vapours to E. 057 || 28-0 | 26-8 | 1-2 || 0-2 |0-1 | 16 || 22:—:—|| 8-5 || Scud; linear and woolly cirri, tinged red. 060 || 32-0 | 30.7 | 1-3 ||0-1 |0-2 | 24 || 22:—:—] 85 | Id; id. ; parhelia seen at 203%. © 058 || 35-1 | 32-4 |2-7 || 1-2 |0-6 | 18 | 20:—-:—] 10-0 Id.; dense cirro-strati. 050 || 36-7 | 34.4 | 2-3 || 1-8 | 1-4 | 18 || 20:—:—| 10-0 || Id.; id. 045 || 39-2 | 36-3 | 2-9 || 1-7 | 1-3 | 18 | 20:—:—|]| 10.0 Id. ; id, 039 || 39-8 | 36-5 | 3-3 || 1-3 |0-7 | 18 | 20:—:—| 10-0 || Id.; id. 033 || 40-1 | 36-4 |3-7 || 1-8 | 1-3 | 20 || 20:—:—|| 10-0 || Id.; dense homogeneous mass of cirro-strati and haze. | 2|| 017 || 40-2 | 36-4 | 3-8 | 2-7 | 2-3 | 18 | 20:—:—| 10.0 || Ia; id. | 30-005 || 39-7 | 36-4 | 3-3 || 4-0 | 1-5 | 19 | 20:—:—]) 10.0 | Id.; id. 29-971 || 39.8 | 37-2 | 2-6 | 2.5 |2-1 | 18 |20:—:—|| 10.0 || Ia; id. 973 || 39-0 | 36-7 | 2.3 || 2-3 |0-8 | 18 | 20:—:—}) 10-0 || Id.; id. 942 || 39-7 | 37-8 | 1-9 || 2-6 | 1-6 | 18 | 19:—:—|| 10-0 Id. 910 || 40-4 | 38-3 | 2-1 | 2-6 |2-2 | 18 | 19:—:—|| 10.0 || Id. 907 || 41-3 | 39-5 |1-8 || 3-3 |3-7 | 18 10-0 Td. irection of the wind is indicated by the number of the point of the compass, reckoning N. = 0, B. = 8, S.=16,W.= 24. The n of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. additional Meteorological Notes after the Hourly Meteorological Observations. 166 THERMOMETERS. WIND. Gott. || Bano- = Mean || METER Maximum Time. |} at 32°. || Dry. | Wet. | Dift.|/ force in [From 14, | 10™, dad. oh. in. b 2 s Tbs. | Ibs. | pt. 21 9 || 29-864 || 42-7 | 40-3 | 1-4 115-3 |4-0 | 18 10 847 || 43-4 | 41-2 | 2-2 |15-3 | 4.6 | 18 11 810 || 43-6 | 41-4 | 2.2 |/4.7 | 3-9 | 19 12 802 || 44-4 |42-2 | 2-2 || 5-0 | 3-4 | 20 13 || 29-779 || 45-2 | 43-1 | 2-1 4-8 |4-1 | 19 14 797 || 44-6 | 42-7 | 1-9 ||6-2 |4.6 | 20 15 822 | 44-1 |42-9 | 1-2 14.2 10.6 | 19 16 798 ||45-7 | 44-4 | 1-3 12-6 [1-5 | 19 17 797 ||45-6 | 44.0 |1.6 12-2 |2-2 | 19 18 806 | 45-1 | 43-7 | 1-4 12-2 | 1-2 | 19 19 812 |} 44-8 | 43.9 | 0-9 || 2-4 |1-2 | 19 20 847 |145-5 | 44-3 | 1-2 |11-0 |0-4 | 19 21 852 || 45-9 | 44-8 | 1-1 |] 0-8 | 0-4 | 21 22 846 | 47-7 | 46-4 | 1-3 {10-5 |0-3 | 18 23 835 || 48-2 |46-7 |1-5 ||0-9 |0-7 | 18 22 0 811 || 49-9 |48-1 | 1-8 |] 1-3 |2-0 | 18 1 792 ||51-7 |49-2 | 2-5 |/2-4 | 1-8 | 18 2\| 766 || 53-4 | 50-3 |3-1 || 2-0 | 2-0 | 20 3 743 ||51-8 | 49-4 |2.4 |13-6 | 3-1 | 20 4 715 || 52-0 | 49-2 | 2.8 || 2-8 | 2-5 | 20 5 692 ||50-8 | 48-7 | 2-1 |/4-1 | 2-5 | 21 6 695 ||49-6 | 47-3 |2-3 ||3-1 | 2-4 | 21 7 719 ||47-8 |46-3 | 1-5 |/3-7 | 2.0 | 19 8 705 || 48-4 | 46-6 | 1-8 |} 1-7 | 1-2 | 19 9|| 697 ||49-6 | 47-9 | 1-7 ]]1-8 | 1-4 | 18 10 692 || 48-9 | 47-6 | 1-3 |/2-1 | 1-4 | 18 11 711 || 48.7 | 47-4 |1-3 ]1-3 | 1-0 | 18 12 731 | 49-2 |47-8 | 1-4 [0-8 | 1-0 | 17 23 1 || 29-755 ||53-7 | 46-0 |7-7 |12-9 | 1-1 | 22 13 || 29-768 || 38-7 | 36-7 | 2-0 ||3-5 | 0-2 | 27 14 || 763 ||38-1 |36-0 |2-1 ||0-6 | 0-2 | 26 15 776 ||\37-6 | 35-7 | 1-9 || 0-2 | 0-0 | 25 16 783 ||37-7 | 36-0 | 1-7 ||0-3 | 0-1 | 20 17 || 795 ||35-3 | 34-0 |1-3 ]}0-1 |0-0 | 16 18 || 804 |/36-0 | 34-5 | 1-5 10-2 |0-0 | 16 19 813 | 35-3 | 34-0 |1-3 10-1 | 0-2 | 17 20 833 || 36-7 | 35-0 |1-7 ||0-1 | 0-2 | 22 21 847 || 41-9 | 38-4 |3-5 10-3 | 0-1 | 23 22 858 || 43-8 | 39.7 |4-1 |10-3 | 0-2 | 23 23 869 | 46-4 | 39-8 |6-6 ||0-7 | 0-6 | 28 24 0 877 |46-5 | 40-0 |6-5 | 0-6 0-5 | 29 1 875 || 48-3 | 40-1 | 8-2 || 0-6 | 0-2 2 874 || 50-0 | 41.7 | 8-3 ||0-6 | 0-4 | 28 3 852 | 48-2 | 41-2 |7-0 ||0-5 | 0-5 | 28 4 848 || 49.7 | 42-7 |7-0 || 0-9 | 0-3 | 28 5 835 || 48-2 | 41-8 |6-4 || 0-5 | 0-2 | 26 6 838 ||47-8 |41-7 |6-1 |/0-5 | 0-5 | 22 if 838 | 44.0 | 39-7 | 4-3 |10-3 | 0-4 | 22 8 843 || 40-8 | 37-7 | 3-1 ]}0-2 |0-1 | 20 9 850 || 39-3 | 36-6 |2-7 |/0-1 | 0-0 | 22 10 843 || 34.4 | 33.0 | 1-4 |10-0 | 0-0 11 838 || 32-7 | 31-7 | 1-0 || 0-0 | 0-0 12 832 || 31-7 | 31-0 |0-7 | 0-1 |0-0 | 18 | 13 || 29-820 || 31-9 |31-3 |0-6 || 0-0 |0-0 | 20 14 812 |! 28-9 | 28-6 |0-3 || 0-0 | 0-0 | 17 Hourty METEOROLOGICAL OBSERVATIONS, Marcu 21—24, 1845. Clouds, P Be ce 2 eee Species of Clouds and Meteorological Remarks, from pt. pt. pt. || 0-10 10-0 || Loose scud ; woolly cirri; cirro-strati. 10-0 id: id. 20:22:—]| 9.9 Td. ; cirro-strati ; cirro-cumuli; cirrous haze, 9-8 || As before; traces of a halo at 114. 9-9 || Seud; loose cirro-strati; shower at 12" 30™. 10:0 || Scud and cirro-strati ; drops of rain. 10-0 I; rain”? 10-0 Tees id. 10-0 Id. 10-0 Id. 20:24:—|| 9-8 || Smoky seud ; loose cirro-strati; cir.-cum.-str. ; 20: —:—|| 10-0 || Homogeneous scud; streaks to E. 10-0 Td. —:20:—)}| 10-0 || Cirro-stratous scud ; cirro-strati; cirrous mass. 10-0 | Nearly homogeneous mass of seud. 20:—:—|| 10-0 || Seud; cirro-strati; drops of rain, 19:—:—|| 10.0 Id. ; id. 20:—:—|| 10-0 des id.; drops of rain. 20:—:—|| 10-0 || Id.; id. ; id. 20:—:—J| 10-0 || Smoky seud ; cirro-strati; cirrous mass. 20:—:—|| 10-0 Id.; id. ; id. 20:—:—J|| 10-0 || Loose seud; homogeneous cirro-strati. 20:—:—] 10-0 Td. 5 id. 10-0 Id. ; id. 9-0 Id. ; cirri and cirro-strati. 9-5 alge id. }21:20:—|| 9-9 Id., very low and quickly ; woolly cirri; cir.-str. } }21:—:—] 9-9 Id. ; id. . Sunday—a.m. Clear; with a few cumuli. p.m. Over ie ees { east with cirri and cumuli. { —:—:25|) 6-0 || Woolly cirri; linear cirri; aurora; halo. — 1/95 3-0 Id. ; cirri ; cirro-strati on horizon; aurora. —:26:—|| 8-5 || Cirro-cumulo-strati; cirro-strati; cirri; aurora ? —:26:— 5-0 Id. == 126/:——I\| Ss Id. —:26:—| 7-0 Id. 3-0 || Scud; cirro-cumulo-strati to E. 0-5 || Cirro-strati on E. horizon, | 0-3 || Cirro-cumulo-strati to SE. 02 Id. Aen es 1-5 | Loose cumuli; cumulo-strati. 29:—:—| 50 Id. ; id. { | 4-0 Id. 28:—:—|| 6-5 || Seud and loose cumuli. 26:—:—|| 5-0 || Cumuli. Wei a at Id.; cirro-strati. 26: —— GD, Id.; eumulo-strati; cirro-strati. sf —:27:—]|| 2-5 || Loose cirro-strati; cumulo-strati. 1-0 || As before ; cirri; red haze on horizon. —:24:—|} 0-8 || Patches of cirro-strati; hazy on horizon. 0-8 Id. 0-5 || Cirri; sky greenish near the moon. wy 0-8 Id., radiating from SE. towards NW. 1-0 Id., scattered over the sky, chiefly to S. and SV a ) 2-0 || As before ; portion of a lunar halo. 4-0 Id. ; id. The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, Kh. = 8, S. = 16, W.= 24. motions of the three strata of clouds, Sc. (scud), C Th ell .-8. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 4 29-512 503 496 486 476 461 458 458 458 460 456 455 450 444 433 417 390 348 300 246 169 y|, 103 | 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. | Diff. force in From 14, ; 102. fp. C = Ibs, Tbs. 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 | 0-1 | 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 45-4 140-2 | 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 |41-5 |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 | 1-4 | 22 44-4 |40-4 |4-0 | 3-3 |3-6 | 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 |3-9 | 26 Clouds, Se. : C.-s.: Ci., moving from pt. pt. pt. 224: Sky clouded. Species of Clouds and Meteorological Remarks. Woolly cir. and cir.-str., chiefly to S.; lunar halo. }- Woolly and curled cir. over the sky ; part of a halo. }- Id. ») Id.; lying NNW. to SSE.; corona. ) Id.; lying NW. to SE. ;. pectinated cir. Id. ; cir.-str. ; part of a halo. © Woolly and linear cirri; cirro-strati; haze. fo) Loose cirro-strati; cirri; haze. (0) ds cirro-cumulo-strati ; haze. des id. ; id. Scud ; cirro-strati; cirri. Id. ; cirro-cumulo-strati ; cirri. e@ Id.; cumuli; cirro-strati. Id. ;| Scotch mist. Id.; cirrous mass. Id.; dense cirro-strati; patch of sky to N. Cir.-str. scud ; cir.-cum.-str.; red to E.; cum.-str. to N. Cirro-stratous scud ; cirro-strati; cirri. Sky to NW.; lightish there. Overcast. Id. Id. ; Clouds broken ; stars dim ; lunar halo. Loose cirro-strati. Id. Id. Seud. Cirro-cumulo-strati ; cirro-strati to E. Scud ; cirro-strati and cirrous haze to E. Id.; a few cirro-strati to E. Cirro-stratous scud. Scud ; loose cumuli. Detached cumuli. Id. Scud and loose cumuli. stars dim ; lunar halo. > wy > oO (0) 10) 10) 10) (0) 10} thick woo. cir., spreading out from NW. Id.; cirri and sheets of cirro-strati, Send ; thick cirrous haze ; cirro-strati; halo. Id.; id. Id. ; id. Id.; rain! Id.; dark; rain! Loose scud. Cirro-stratous scud (?) on N. and SE, horizon.* Seud; rain Id.; cirro-stratous scud to N ; aurora. ?* Id.; sky milky ; id. 2 to S.; sky milky. id. ; streaks of cirri to EK. woolly cirri. id. ; haze. ; mottled and woolly cirri. id. OdD0o0orvvvyvy @ direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, H.= 8, S.= 16, W. = 24. | of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. bk See additional Meteorological Notes after the Hourly Meteorological Observations. 1 The Gott BaRo- Mean METER Time. | at 32° oe; ea in. 26 23 | 29-341 27 0] 346 | 1 366 2 365 | 3 351 4 335 5 | 299 | 6) 262 7 || 231 8| 199 9/| 184 10) 134 11|| 078 12|| 032 13 29-010 | 14 || 28-958 15 938 16|| 923 17} 900 18 873 19 842 20|| 841 21 839 22) 855 23 885 28 0 920 1 || 28-967 2 | 29-013 3 074 4]) 120 5 166 6|| 208 7 238 Sil) e27a 9 296 10], 331 11) 353 12) 398 13 || 29-424 14 455 15 481 | 16 501 17 540 18 585 19 625 20) 661 21 699 Ooi seal 23 773 29 0 808 1 851 2 878 3 888 4 894 5 924 6 951 Hovurty METEOROLOGICAL OBSERVATIONS, MArcH 26—29, 1845. THERMOMETERS, WIND. Clouds, Maximun Se.: oF Ci. ; force in MOVIE: Dry. | Wet. | Diff. eel From Reon WS 2 . Ibs. | Ibs. pt. pt. pt. pt. 49-2 | 43-4 |5-8 || 4-1)/3-1 |} 26 || 26:—:— 50-9 | 44-2 |6-7 || 2-9/2-8 | 24 || 24:—:— 52-9 | 45-4 |7-5 || 3-1/2.0 |} 22 | 94:—:26 52-2 |46-0 |6-2 | 1-8] 1-2 |20 || 24:—:— 51-7 | 46-2 |5-5 | 1-8])1-5 | 20 || 24:—:— 49-1 |45-7 | 3-4 | 1-2/0-6 | 20 | 21:—:— 48-0 | 46-0 | 2-0 || 0-8/0-7 | 22 || 23:—:— 48-5 | 46-4 | 2-1 | 2-8] 1-7 |18 || 24:—:— 48-8 | 47-5 | 1-3 || 2-1)1-3 |19 || 24:—:— 3-2 | 19 48.0 | 42-7 | 5-3 || 7-7|5-6 |24 |o5:— 48-4 | 43-2 | 5-2 || 7-2|3.2 |25 | 26:28 48-0 | 42-7.|5-3 || 4-9|4-3 |27 || 25:26 46-3 | 42-4 |3-9 || 2-9| 1.6 7 45-9 | 41-1 |4-8 || 3-1] 1-7 | 26 ||26: 26 43-5 | 39-6 |3-9 || 2-1]2.2 | 25 3-8 -6| 1-6 | 28 41.2 | 38-2 | 3-0 || 2-1|2-0 | 26 40-6 | 38-0 | 2-6 |) 2:0} 1-2 | 25 40-0 | 37-6 | 2-4 || 1-8] 1-5 | 27 39-8 | 37-2 | 2-6 || 1-6|0-8 | 25 40.0 | 37-2 |2-8 || 1-2|0-8 | 25 40-2 | 37-2 |3-0 | 1-1/0-8 | 26 39-7 | 36-4 |3-3 || 0-5] 1-1 | 26 40-5 |37-3 |3-2 || 1-1|0-7 | 27 42-1 |38-7 | 3-4 || 0-7] 0.7 | 24 45-1 |40-7 | 4-4 || 1-3] 2-1 | 27 47-5 |42-5 |5-0 | 2-2|1-2 |}298 |130:— 48-4 |40-5 |7-9 || 3-3/3-3 | 28 ||29:— 50-5 | 42-6 |7-9 || 3-6|2-1 | 30 |\98:— 49-3 | 40-6 |8-7 || 2-5/1-8 |30 51-4 | 42.4 | 9.0 |] 2-2|1-0 |}29 ||29:— 51-9 | 42-1 | 9-8 || 2-2)1-8 ]29 |129:— 51-5 | 41-9 |9-6 || 1-7]1.2 130 ||/29:— 51-7 | 42-3 |9-4 | 1-4]0-9 130 ||29:— 50-1 | 40-7 | 9-4 || 1-2) 0-6 | 29 Sky clouded. March 274 10, Species of Clouds and Meteorological Remarks, Scud and loose cumuli; cirri. Id. ; id.; cirro-strati, ‘ Id. ; woolly cirri; cirro-strati. Id. ‘i Id. ; cirrous mass. Id. ; id. ; drops of rain. Send; cirrous mass; solar halo. Id.; mass of cirro-strati. Electric-like seud ; cirro-strati; showers. Scud; cirrous mass. Id. ; 100 drops of rain. Id.; id.; id. Id. ; id. ; lightest drizzle. ds id. ; id. Scud ; cirrous mass; lightest drizzle. Td; id. ; a shower at 134 30™, Id.; cirro-cumulo-strati; shower? at 14% 30™. Id.; id. Seud and loose cumuli. Thick scud and loose cumuli; sky slightly milky. Scud ; loose cum. ; sky slightly milky ; showers after 194, 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. Seud and loose cumuli; cirro-strati. Scud ; loose cumuli; cirro-strati. Id. ; id. ; id. dss id.; nimbi; cirro-strati to N. Id; ide sheets of cirro-strati. Masses of scud ; cirro-strati and cirrous haze to N. Cirro-strati to N., and patches scattered about. Id. Id.; faint auroral light. Td. ; id. Cirro- pita on N, and E. horizon. Clouds to E. and N. Id. on E. horizon. Thin clouds on E. horizon. Td. Cirro-strati on E. horizon. Bank of cirro-strati on E. horizon. Seud above Cheviot ; patches of cir.-str. on E. hor. Nearly as before. Tals thin streaks of cirri to E. Patches of scud and loose cum. ; streaks of cir. to E. Detached cumuli. Cumuli; milky-looking near the sun.* Id. Id. Id. Id. Id. Id. ; becoming slightly cirro-cumulous in some places. The pressure of the wind would have been estimated at upwar' ds of 7 lbs., in some cases ; the anemometer has not shewn — 4 lbs.; the index is frequently tugged back 2 lbs. in strong gusts, and the gust is over before it can mark. his i is evidently due to the spony 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 Howrly Meteorological Observations. (ORORONOLONO) © OOO0000 Hovurty METEOROLOGICAL OBSERVATIONS, Marcu 29—Apnrit 1, 1845. 169 THERMOMETERS. WIND. Clouds, Maximum Se.: C.-8.:Ci., Sky 2 : force in |rpom moving clouded. Species of Clouds and Meteorological Remarks. 14, /10™. Boe Dry. | Wet. 2 si s '. pt. pt. ‘ 45-3 | 39-4 | 5- : . 229 >—| : Cirro-stratous scud. 41:8 | 37-8 | 4. . * D Id. ; cumuli to N. 42-0 | 38-3 | 3- . . Id. 41-2 | 38-0 | 3- : ‘ D Id. 36-4 | 35-2 | 1- 5 : Y Streaks of cirri with aurora to N.; sky milky. 35-0 | 33-8 . D . | a Cirri radiating from NW by N.; faint aurora; sky hazy and milky. } 42-8 | 40-8 a D 5 © ; | . Sunday—Scud and mass of cirro-strati ; rain throughout the day. 40-8 | 38-2 | 2. . : D Cirro-strati. 39-6 | 37-0 | 2- . : : Id. on E. horizon. 39-4 | 36-6 | 2- : : Q * Stars dim. 39-5 | 36-7 | 2- B : D Cirro-strati to E. 36-7 | 3- : : : Id. 36-5 | 2- : : : Id. ; scud to SE. and §.; thin cirri to E. 37-4 | 2- - 2 SO8!: +. Cirro-stratous scud on Cheviot. 38-6 | 2- : : : c : Td. ; thin cirri to N. 39-4 |4- -6 | 0- . Cirro-strati and cirri on E. horizon. 40-5 | 5- : . i—: ‘5 | Seud and haze. 41-3 | 6 : . :—: : Scud ; cirro-strati; haze. 43-0 | 7- : : . Id. ; id. ; id. 43-2 |8- . +2 i: : Id.; cirro-strati with mottled edges; haze. 43-8 | 8- D : tt : Woolly cirri; cirro-strati; patch of scud. 45-2 |9. fs i Se : Wo. and mot. cir.; lin. and curl. cir. ; cum.-str.* 47-0 | 9- “ E —: ‘ Td. id. 47-4 |6- : : 3 2 oi Scud ; loose cumuli; cumulo-strati; cir.-str.; cirri* 45-3 | 4- : 5 —' ; : Woolly cirri; cirro-cumuli; cirro-strati; cumuli to E. 43-3 Id. ; id. ; \ 2 iar 40-4 Tdi; cirro-strati and cirrous haze. 38-4 Cirro-strati and cirri. 36-6 Id. ; stars dim. 34-0 Id. round horizon. Id. id. Cirro-strati and cirri round horizon. Id., principally to E. ; stars dim. id. OOO00000000rY2 } Cirro-cumulo-strati ; cirri; cirro-strati. Woolly cirri; cir.-str. ; cir.-cum, ; cir.-haze ; parhelia.* Woolly cirri; cir.-str.; cir-cum.; cir, haze; thick linear cirri to E. Id. ; id. ; id. ; 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. Ids id. ; id. (>) Id. ; id. ; id. Dense cirro-strati, becoming rather homogeneous. Cirro-strati ; cirro-cumulo-strati and cirri. Id, id. id. i id. TROAwMWORHROHHAS SCHHON lll lle lel lll Robo dwhARD 39-2 | 2. Ff ; : f : clouds broken. 38-8 | 2- . - : Cirrous clouds. 38-3 | 1-3 10-0 |0- : Id. March 294 12 25m, Barometer 30°043. March 314 354», Portion of a halo. April 14. Swallows said to have been seen at Kelso. * See additional Meteorological Notes after the Hourly Meteorological Observations. . AND MET. oss. 1845, 170 Hovurty METEOROLOGICAL OBSERVATIONS, APRIL 1—3, 1845. a z THERMOMETERS. WIND. aro | aes | ES || Maximum Se Cre Oh pky | Species of Clouds and Meteorological Remarks. Time. || at 32°. Dry. | Wet. | Diff. force in |fyom| ae clouded. | 1b, ) 10m, | | | doh in. | 2 % © Hl ibs. | Ibs. pt. | pt. pt. pt. 0-10, |) 1 13 | 29-924 || 38-4 | 37-4 | 1-0] 0-0 | 0-0 2:0 || Cirrous clouds. 14 918 || 34-4 | 34.0 | 0-4)/0-0 | 0-0 0-0 || Hazy near horizon. 15 909 || 33-0 | 32-6 | 0-4)/0-1 | 0-0 | 18 1-0 || Cirri radiating from ESE. 16 901 || 31-9 | 31-2 | 0-7/10-0 | 0-0 | 16 || 1-0 || Id. : i 17 899 || 29-5 | 29.3 | 0-2//0-0 |0-0 | 18 | 1-5 || Id.; vapours slightly coloured to E. }) 18 891 || 29.4 | 29-4 | ...|/0-1 |0-0 | 18 7-0 Id., coloured ; id.* { 19 897 || 34-2 | 32-5 | 1-7]]}0-1 | 0-0 7-5 || Woolly and linear cirri. E 20|| 899 | 35-0 | 33-0 | 2-0] 0-0 |0-0 | 7 || 10-0 || Cirrous mass; dense fog ; object invisible at 150 yards. |_ 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 1G bie objects invisible at 170 yards. T 23 || 903 | 42-5 | 41-4 | 1-1] 0-1 | 0-1 7 |—:—:24|| 6-0 | Woolly cirri; cirro-strati; fog clearing off. (0) 2 892 || 47-9 | 44-9 | 3-0|/0-2 |0-1] 4) 6-0 Id. ; id., motion imperceptible. © 1 893 || 53-1 | 45-7 | 7-4 |] 0-2 | 0-2 1 | 8-0 || Id.; cirrous haze. (0) 2|| 880 || 56-7 | 49.3 | 7-4] 0-1 |0-0 | 15 8-0 Id. ; id. o) 3 864 || 61-0 | 51-0 |10-0] 0-7 | 0-6 | 16 || —:—:20] 8-0 Id. ; id. o) © 4|| 862 | 61-5 | 50-2 |11:3 10-8 |0-7 | 14 || —:—:22]) 7-5 Id.; id. O| 5 || 857 || 60-3 | 49.3 {11-0 0-6 | 0-3 | 13 || —:—:22| 8-5 Id. ; id. (0) 6 860 || 55-6 | 47-4 | 8-21}0-7 |0-4 | 16 | —:—: 24 8-0 | Wool. and lin. cir., becoming thick cir.-str. to NE. 6 7 862 | 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 hazy. | 9|| 887 || 41-8 | 40.4 | 1-4 0-1 |0-0 | 6 | 2-0 |) Cirri radiating from NW.; sky milky, aha - 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 2 14 875 || 29-6 | 29.4 | 0-2|| 0-0 | 0-0 0-0 || Thin fog. 15] 863 |) 28-4 | 28.4 00 |0.0 | 0-0 Id. 16|| 853 | 28-4] .. 0-0 |0-0 | 18 | 0-02|| Fog rather dense. 17|| 854 | 28-3 | 28.6 0-0 |0-0 | 26 | 0-02] Fog; objects invisible at 300 yards. 18|| 857 | 30-2 | 30-1 | 0-1|/ 0-0 | 0.0 I 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. 20)) 854 || 31-6 | 31-3 | 0-3//0-1 |0-0 | 4. 10-0 || Id.; id. 120 yards. 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 Ol 812 | 40-7 | 39-3 | 1-4] 0-1 |0-1 | 12 | 27:—-:— || 5-0 || Fog-clouds; fog at 3 miles; clearing. € 1)) 791 || 43-4 | 41.4 | 2-0]0-1 0.0} 7 | 1:0 || Very hazy on horizon. ©) | 2 758 ||49-9 | 45-7 | 4-2]|0-0 | 0.0 4 0-5 Id. , = 3 | 742 || 55-3 | 48-3 | 7-0] 0-1 | 0-1 7 0-5 || Cirrous clouds and haze on horizon. ) 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. 7 | 709 || 48-4 | 45-3 | 3-1|/0-5 | 0-2 6 || 2-5 || Cirro-strati and thick haze on horizon. fo) 8|| 720 || 43-5 | 41-9 | 1-6]] 0-2 | 0-1 4} 2-5 || As before; the sun set at 74 16™, very red and large like. P 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. 11|| 739 || 33-2 | 33-0 | 0-2] 0-0 | 0-0 1-0 || Id. 5 12 73d | 34-0 | 33-8 | 0-2|/0-1 | 0-0 4 || 10-0 || Dense fog ; no stars visible. aI 13 || 29-760 || 34-4 | 34-6 | 0-1|| 0-0 | 0-0 | 10:0 || Dense fog; no stars visible. al 14|| 784 || 33-6 | 33-3 | 0-3]}0-5 {0-4 | 4 | 10-0 Ia. ; “dark. 2 | 15, 790 || 34-9 | 34.7 | 0-2|/0-4 |0-3 | 6 | 10-0 || Id. ; 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. : eth ; F 18 799 || 35-2 | 34-8 | 0-4) 0-2 |0-1 4 || | 10-0 Id.; objects invisible at 14 mile. : 19} 811 | 35-6 | 35-1 | 0-50-1102) O | | 10-0 || Scotch mist at 2 miles. 20! 833 | 36-1 | 35-8 | 0-3|10-5 10-1 | 31 || | 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. The | motions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. | * See additional Meteorological Notes after the Hourly Meteorological Observations. Hovurty METEOROLOGICAL OBSERVATIONS, APRIL 3—7, 1845. 171 THERMOMETERS. WIND. Clouds, een Maximum Big Rese Cat Sky Species of Clouds and Meteorological Remark at 82°. || Dry. | Wet. [Diet|] force in |rrom|| Moving clouded. ; aL tem 14, (107. in. 2 ‘ = lbs. | Ibs. | pt. || pt. pt pt. 0—10. 29-839 || 38-0 | 37-4 | 0-6||0-1 |0-0 | 20 || 4:—:—|| 10-0 | Misty scud; slight mist (indistinct at 3 miles.) 852 || 40-0 | 39-2 | 0-8 || 0-0 | 0-0 6 4:—:—] 10-0 Is id. 860 || 40-8 | 39-6 | 1-2||0-3 | 0-1 6 10-0 id. id. 865 || 42-8 | 40-6 | 2-2||0-2 | 0-1 6 5:—:—|| 10-0 Td. ; rather homogeneous ; fog on horizon. 872 || 42-5 |40-5 | 2-0]| 0-2 |0-1 6 10-0 Id. ; id. ; id. 876 || 42-6 |41-1 | 1-5 || 0-4 |0-.2 4 10-0 ds id. ; id. 872 || 43-1 | 41-3 | 1-8]]0-3 | 0-2 4 10-0 Td. ; id. ; id. 871 || 43-6 | 42-0 | 1-6]/0-2 | 0-1 5 10-0 Id. ; id. ; id. 877 || 43-3 |} 41-6 | 1-7||0-3 | 0-1 2 | 6:—:—| 10-0 Td. ; id. ; id. 889 || 42-3 |40-5 | 1-8} 0-2 |0-1 5 10-0 iGke id. ; id. 895 || 41-4 | 39-S | 1-6||0-3 | 0-2 9 10-0 Td. ; haze on horizon. 909 || 40-8 | 39-4 | 1-4]| 0-2 | 0-2 7 10-0 Id. 922 || 40-2 | 39-1 | 1-1]/0-2 | 0-1 7 10-0 Id 933 || 40-0 |38-9 | 1-1]| 0-1 |0-1 4 10-0 || Dark 934 || 39-8 |38-9 | 0-9|| 0-1 | 0-0 9 10-0 Id 937 |}39-1 |38-4 | 0-7||0-1 | 0-1 4 10-0 Id. 29-934 || 39-0 | 38-2 | 0-8]0-0 |0-0| 6 10-0 || Dark. 938 || 38-7 | 38-0 | 0-7||0-2 |0-1 | 16 10-0 Id. 924 || 38-4 | 37-7 | 0-7||0-0 | 0-0 | 16 10-0 Id. ; lightest rain. 923 || 38-0 |37-2 | 0-8]|0-0 |0-0 | 16 10-0 Id. 921 || 38-0 | 37-0 | 1-0}|0-1 |0-0 | 10 10-0 || Lighter. 919 || 37-9 | 36-9 | 1-0]|0-0 |0-0 | 13 || 14:—:—J| 10-0 || Nearly homogeneous seud. 922 || 37-6 | 36-6 | 1-0||/0-0 |0-1 | 13 10-0 Id, 924 || 38-1 |37-0 | 1-1]|0-1 |0-0 | 14 10-0 Id. 923 ||38-0 | 36-9 | 1-1]/0-1 |0-0 4 10-0 Id. 924 || 37-9 |36-6 | 1-3]}0-1 |0-0] 4 10-0 Id. 924 ||40-9 | 39-0 | 1-9]|0-2 |0-1 | 12 10-0 Id. 918 ||41-6 | 39-0 | 2-6|| 0-2 | 0-2 6 || —:14:— || 6-0 || Cirro-stratous scud ; cirro-strati; cirrous haze. (0) 912 || 45-7 |42-3 | 3-4]/0-2 |0-1 | 28 || —:12:—J|| 4-0 || Cirro-cumulous scud ; woolly cirri; haze. (0) 902 || 47-8 | 43-7 | 4-1]/ 0-1 |0-0 | 12 3-0 || Woolly cirri; cirro-strati; haze. (oO) 883 || 50-5 | 45-2 | 5-3]/0-1 |0-0 6 7-0 || Loose cirri; cir.-str.; mottled cirri; small cir.-cum,© 874 || 51-6 | 45-6 | 6-01/0-5 |0-5 f/' 7-5 || As before; cir.-cum. larger; linear cirri radiating from NW- (o) 868 || 50-7 |45-0 | 5-7||0-4 |0-2 | 2 3-0 Td. 875 || 48-0 |42-9 | 5-1]/0-4 |0-3 | 2 || —:—: O|| 2-5 |) Woolly and linear cirri; hazy on horizon. fo} 878 || 44-0 | 40-7 | 3-3] 0-4 |0-3 2 2-0 || Mottled, linear, and tuft cirri; id.* 0} 889 || 41-1 | 38-9 | 2-21/0-3 |0-0 | 3 1-5 || Cirri and haze; purple to W. 902 || 36-9 | 36-0 | 0-9]|/0-1 |0-0] 3 0-5 || Haze on horizon. 900 || 33-0 | 32-7 | 0-3||0-1 |0-0 | 20 0-0 || Clear. 902 || 31-5 | 31-1 | 0-4} 0-1 |0-0 | 20 0-0 Id. 905 || 30-3 | 30-2 | 0-1 || 0-0 | 0-0 0-0 Id. 29-810 ||51-0 | 42-2 | 8-8|| 0-2 | 0-0 0-0 || Sunday—Beautiful day ; cloudless. Be a7-3°44.5 fore tee | 8 Yl wee sae Light wind sprung up about 5». 3 || 29-792 || 39-4 | 39-1 | 0-3/)0-7 |0-1 | 1 10-0 || Dark; lightest rain. 787 || 39-8 | 39-4 | 0-4]|0-0 |0-0 10-0 Id. ; id. 781 || 40-3 | 39-9 | 0-4|| 0-0 | 0-0 10-0 Id. ; id. 761 || 40-7 | 40-2 | 0-5} 0-1 | 0-0 10-0 Td. ; id. _ 754 || 41-0 | 40-4 | 0-6||0-0 |0-0 | 17 10-0 Id. 747 || 40-9 | 40-4 | 0-5||0-0 |0-0 | 20 | —: 6:—]] 10-0 || Cirro-stratous scud ; cirrous mass. 743 ||41-6 |40-7 | 0-9|/0-1 | 0-0 | 22 10-0 || Dense mass of thick seud and cirro-strati. 733 || 43-6 | 42-4 | 1-2]/0-0 |0-0 | 24 |} —: 4:— 9.9 || Cirro-stratous scud. 727 |46-0 | 44-1 | 1-9||0-2 |0-1 | 18 |16: 9:—|} 9-0 || Hazy scud; loose cirri-cumuli; very hazy. (>) 719 ||49.7 |46-6 | 3-1|/0-1 |0-0 | 14 |}10:—:—J| 9-8 || Seud; loose woolly cirro-cumulo-strati. . 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 seud ; slight haze. oO) The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, BE. = 8,S.=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. 5264. Three swallows seen near the Observatory. additional Meteorological Notes after the Hourly Meteorological Observations. Hourty METEOROLOGICAL OBSERVATIONS, APRIL 7—9, 1845. THERMOMETERS. WIND. Clouds Segal al 3 Se.:C.-8.:Ci.|, Sk : : Mean | METER || Maximum Br Sis Va a a Species of Clouds and Meteorological Remarks. Time. | at 32°. || Dry. | Wet. | Diff. force in | From Ree eo | 1%, ,10™, | d. h. | in. = re E ipa Ibs. pt. pt. pt pt. 0—10. , 7 2/| 29-626 | 53-0 |47-4 |5-6 |\0-2 |0-1 | 4 ||20:—:—]) 4-0 || Loose cumuli and seud; hazy. lig 3 590 | 53-6 | 48-4 | 5-2 || 0-4 | 0-3 6 ||\18:—:—] 3-5 Id? very hazy on horizon, =) 4|| 553 ||53-7 |48-3 15-4 0-5 |0-5 | 4 19:—:—] 7-0 Id. ; very hazy. | 5 523 || 54-1 | 48-4 | 5-7 |} 1-0 | 1-1 | 14 ||} 21:—:—]| 4-0 Td: ; i id. [at i} mile. | 6 508 || 52-0 | 47-3 | 4-7 || 1-3 | 1-3 | 15 | 20:—:—] 40 Id. ; dense haze ; objects invisible } 7 493 || 48-2 | 45-2 | 3-0 ||0-7 |0-3 | 15 3-0 || As before; sun blood-red. OQ} 8) 476 ||45-0 | 42-7 | 2-3 || 0-3 | 0-4 | 17 2-0 || Haze on horizon, &c.; as before. 9 465 || 42-6 | 41-0 | 1-6 || 0-5 | 0-4 | 17 2-0 Id. 10 443 || 40-5 | 39-4 | 1-1 ||0-5 | 0-1 | 17 0-0 Id. 11 413 || 39-4 | 38-3 | 1-1 || 0-1 |0-1 | 17 0:0 || Hazy on horizon. 12 392 || 38-8 | 37-6 | 1-2 || 0-2 | 0-0 3-0 || Thin cirri; stars dim. 13 || 29-359 || 40-3 | 38-4 | 1-9 | 0-4 |0-3 | 18 3-0 || Thin cirri; stars dim. 14 324 || 39-0 | 37-0 | 2-0 || 0-2 | 0-0 9-5 Id., radiating from S, 15 288 || 40-1 | 37-6 | 2-5 0-8 |0-4 | 15 7-0 Id. ; sky in zenith. 16 270 || 40-6 | 37-9 | 2-7 || 0-3 | 0-2 | 18 10-0 || Cirrous clouds. 17 | 236 || 41-6 | 38-9 | 2-7 ||0-6 | 0-3 | 18 10-0 || Cirro-strati; cirri. 18 220 || 41-7 | 39-5 | 2-2 |10-5 |0-2 | 18 || —:20:—J| 10-0 || Loose cirro-strati ; rain’? 19 202 || 42-0 |40-4 | 1-6 || 0-6 |0-4 | 17 | 19:—:18 9-9 || Seud; woolly cirri. 20 175 || 46-3 | 44-0 | 2-3 ||0-5 |0-6 | 17 |/20:21:—|) 9-9 || Id.; cirro-cumulo-strati. 21 163 || 47-1 | 44-7 | 2-4 |}1-0 |0-5 | 18 |/20:16:—|| 9-7 || Id.; loose cirro-strati. 22 144 || 48-7 | 45-2 |3-5 ||0-9 |0-6 | 18 || 20: —:— 9.9 Id.; cirrous mass; cirro-strati; cumuli. 23 129 || 47-3 | 43-3 | 4-0 || 1-1 |0-7 | 21 }23:—:—] 9-9 || id.; id. ; id. ; id. 8 0 122 || 47-8 | 43-0 | 4-8 ||0-8 | 0-4 | 20 || —:23:—/]| 10-0 || Cirro-stratous scud ; cirrous mass. . 1|| 107 ||47-2 | 43-6 |3-6 || 0.7 | 0-4 | 24 || 92:—-:— | 10-0 || Scud; cirrous mass ; shower since 0". 2\| O77 |\48-7 | 45-4 |3-3 ||0-7 |0-7 | 20 || 23:—:— 9-9 || Scud and loose cumuli; cirro-strati; cirri; showers. 3|| 062 || 50-0 | 46-7 |3-3 || 1-2 |0-3 | 18 || 24:—:—] 9-5 Id. ; id. ; nimbi. 4|) 043 || 49-0 }45-0 |4-0 | 1-1 | 1-2 | 18 | 23:—:—] 8-5 || Scud; cumuli to N.; nimbi. O} 5 031 || 46-3 | 43-0 |3-3 || 2-9 | 1-8 | 21 | 23:—:— 8-0 Id. ; id. ; id, (0) 6 041 || 44-8 | 41-7 | 3-1 ||2-2 |1-6 | 19 || —:23:—|| 7-5 || Cirro-stratous scud; nimbi; cirri; cirro-strati.* ‘o) 7|| 033 | 42-8 | 40-0 |2-8 || 1-0 |0-5 | 21 |} —:23:—]| 1-8 Id. ; id.; id.; piles of cumuli. Of 8 027 || 40-3 | 38-1 | 2-2 10-5 |0-3 | 20 0-3 Id. ; cirro-cumuli. ) 9 028 || 38-4 | 37-0 | 1-4 ||0-9 | 0-4 | 18 0-5 Id. ; cirro-strati. Dy 10 019 || 35-9 | 34-6 | 1-3 |] 0-3 | 0-0 | 0-1 || Streaks of cirro-strati; very clear.* Hy} 11 009 || 35-2 | 34-1 | 1-1 || 0-0 | 0-0 | 22 0-2 || Patches of cirro-strati to E. and W. 12 005 ||35-0 | 34-2 |0-8 ||0-4 10-1 | 21 0-2 || Patches of cirro-strati. 13 || 29-000 || 32-8 | 32-1 | 0-7 || 0-3 | 0-0 | 10 0-0 || Clear. 14 || 28-984 || 32-0 | 31-6 | 0-4 || 0-2 | 0-0 | 28 0-2 || Patches of cloud; stars rather dim. 15 964 || 32-4 | 31-8 |0-6 || 0-2 |0-1 | 18 0-0 || Clear. 16) 944 || 32-1 | 31-3 |0-8 || 0-1 | 0-1 | 20 0-1 Id.; cirro-strati to NE. 17 929 || 29-8 | 29-4 | 0-4 || 0-0 |0-0 | 20 0-4 || Cirro-strati and haze to E. 18 927 || 28-6 |28-5 |0-1 ||0-1 |0-0 | 16 0-5 || Loose scud to S.; cirro-strati and cirrous haze to E. 19 927 || 31-6 | 31-2 |0-4 || 0.2 | 0-0 8 0-2 || Seud; cumuli; cirro-strati; cirri on horizon. 20|; 924 | 34-5 | 34-0 |0-5 0-0 |0-.0 | 4 0-5 || As before; hazy to E. 21 918 | 38-0 | 36-7 |1-3 || 0-0 |0-0 | 16 0-8 || Cirro-eumulo-strati; cir.-str. to S.; haze on E. hor. O} 22|) 906 ||40-8 | 39-2 |1-6 |/0-1 |0-1 | 17 |} —:22:—] 3-0 Id. ; cumuli to N. (9) 23 900 || 44-7 |41-7 |3-0 |/0-1 | 0-1 | 15 || 8:—-:—]] 2-5 || Loose cumuli; cumuli; cirro-strati; haze. 0) 9 0} 897 || 46-6 |40-9 |5-7 0-1 0-1] 2 17:—:—]| 3-5 || Cumuli; cirri. co} 1|} 889 || 47-7 | 41-3 |6-4 0-1 |0-1 | 10 | 10:—:21]| 4-0 Id.; cumulo-strati ; cirri ; clouds moving variously. | 2 | 877 || 48-4 | 42.0 16-4 ||0-2 | 0.2 Gatig2=4st.—— 7-5 || Electric-looking cumuli and cumulo-strati. ( 3 861 || 49-2 | 43-2 |6-0 }}0-1 |0-3 | 8 || 4:—:—]| 7:5 Id. (o} 4) 860 || 48-3 | 42-0 16-3 || 0-8 | 0-3 a =. 3-0 || As before ; clouds scarcely moving ; haze on horizon. 5 861 || 46-8 | 40-6 |6-2 ||0-6 0-7 1-5 || Cumuli; cirro-strati; haze. 0) 6 868 | 45-3 | 39-7 |5-6 | 0-5 |0-2 | 7 1-5 || Cum-str. and cir.-str. to S.; brownish haze to W. 7 879 ||\43-7 | 38-4 |5-3 || 0-4 | 0.2 6 1-0 || Cirro-strati and haze round horizon. Pi 8) 894 | 40-6 | 38-0 | 2.6 ||0-4 |0-2 | 4 1-5 || Cirro-strati on horizon, chiefly to NE. 9| 901 | 39-0 | 36-9 |2-1 || 0-2 | 0.0 2 9-9 || Scud. The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, Hh. = 8, 8.= 16, W.= 24, They) motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. April 74 3%, April 8¢ 18> 8}=, The clouds seem to be acted on by various currents. L The sun just above the horizon. * See additional Meteorological Notes after the Hourly Meteorological Observations. “ a Hovurty METEOROLOGICAL OBSERVATIONS, APRIL 9—11, 1845. 173 MOMETERS. WIND. DERE WV Clouds, | Se.: C.-s. Hed Sky ce / moving clouded. Species of Clouds and Meteorological Remarks. from Maximum Dry. | Wet. | Diff.|| fore in a pt. pt. pt. | 38-6 } 38-1 37-3 Seud. | 10- Id.; lightest rain. | 10- Id. Bout) op? = R=) 37-2 37-6 36-6 36-0 36-0 36-0 36-3 36:8 37-2 39-7 Id.; cirro-strati; cirrous mass. Scud and dense cir.-str. ; nearly homogeneous ; rain”? Td. ; id. ; id. Ike 5 Scud ; loose cumuli; cirro-strati; rain”? Id. ; id. ; shower of hail at 22 30™, Thick scud and loose cumuli; shower! IGE rain”? Rain®, slightly mixed with sleet. Seud ; loose cumuli; cirro-strati; cirro-cumuli. Id. ; id. Id.; showers around ; milky haze above. tds id. ; id. Id.; dense cirrous mass. ighe id. ; rain! Id. ; id. Id.; clouds broken. Id.; thin cirri. As before. As before. ww a w = bhornwowmwosomonAAD CC ON Ol oly BEEP ORS wwwwwp sky in zenith. Seud ; cirro-cumuli; cirri; shower” Id.; drops of rain. Id.; rain?; 192 10™, sleet; 20™, parhelion. Id.; cirro-cumulo-strati; cir.-str.; frequent showers. Loose scud and nimbi; showers around. Ls bys cir.-cum.-str. ; nimbi; cirri; rain? id. ; dase ide loose cumuli; nimbi. @ eumuli to N.; id. : id. ; cirro-strati. Scud and loose cumuli; cumulo-strati; cirro-strati. Id. ; cirro-strati. Id. ; id. Scud ; cirro-stratous scud. Cirro-stratous scud. (2) Td. y Id. ») [NE. ) Id. ; broad strips of thin cirri lying SW. and 1-4 2.4 1-7 1-9 1-5 0:7 1-2 1-2 1:7 2-3 1-8 2.9 1:5 | | DNNNWNNNNWN NW WW Ww Ww ww BNE WRNONHE NEF NRE NNER RE eNO BE Re EK KHOR NRE Re DWN we www bo Clear. Id. ») Haze or thin cirro-strati to N. Cirro-strati to NE. Cirro-strati. Cirro-stratous scud. e 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 of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 174 Hour ty METEOROLOGICAL OBSERVATIONS, APRIL 11—14, 1845. THERMOMETERS. WIND. Clouds | : { Gott. || Baro- | = 36. = Ose: Oi..|| PB i Mean || METER sete aii, pr a ame Species of Clouds and Meteorological Remarks. Time. || at 32°. || Dry. | Wet. | Diff. ae From] "Rome ‘| ! a bh, ne “ , i lbs. | Ibs. | pt. |} pt. pt. pt. |} 0—10. 1117 || 29-493 || 30-7 | 30-0 |0-7 | 0-0 | 0-0 9-0 _ Cirro-stratous scud. ’ 18 | 486 || 30-7 |30-0 |0-7 ||0-0 |0.0 | 22 || —:26:—|| 9-5 | Id. ; Cheviot covered with snow. 19 | 95 || 32-0 |31-3 |0-7 | 0-1 | 0-0 | 16 || —:27:—]} 10-0 | Id 20 492 || 34-3 |33-1 | 1-2 ||0-0 |0-0 | 24 10-0 | Id 21 || 481 || 38:7 136-5 | 2-2 ||0-2 |0-2 | 22 |—:26:—|]| 10-0 Id 22 || 476 || 42-4 |39.8 |2-6 |/0-3 |0-3 | 18 | —:26:— 9-5 | Id 23 || 468 ||45-0 |41-5 |3-5 |/0-7 |0-6 | 20 | _:26:—|]| 9-5 Ia. 9 12 0] 461 | 46-8 |41-6 |5-2 | 0-7 | 0-8 | 20 | 24:—:—}| 10-0 | Soud ; cirro-stratous scud. 1 451 ||47-7 | 42-8 |4-9 | 1-0 ]1-6 | 19 |}24:—:—-|| 10-0 || Id.; id. 2 437 || 49-1 |43-5 | 5-6 || 1-0 |0-5 | 21 | 25:—:— 9-5 nike id. 3 422 ||50-1 |43-8 |6-3 | 0-7 |0-6 | 21 |25:—-:12]| 6-0 | Id.; fine woolly cirri; cirro-strati; cumuli; haze. 4 418 || 49-6 | 44-3 |5.3 | 0-8 |0-4 | 20 | 25:—:—/}] 9-9 | Id.; cirro-strati; cumulo-strati; haze. 5 || 424 | 47-7 | 42-4 5:3 ||0-8 |0-6 | 21 9-9 || Cirro-stratous scud; cirrous mass. 6 433 || 45-7 | 42-5 | 3-2 || 1-1 |0-5 | 19 || 23:—-:—)]} 10-0 || Scud; dense mass of cirro-strati; rain”? rf 436 ||44-1 [42-5 |1-6 | 0-7 | 0-1 | 19 | 22:—:—|| 10-0 Id. ; id. | 8 441 ||43-0 | 41-2 | 1-8 || 0-4 |0-0 | 20 10-0 || Id; id. ; clouds very red at sunset. — 9 446 || 41-2 | 39-9 | 1-3 || 0-1 |0-0 | 20 8:0 || Scud; cir.-str.; cir. haze; coloured lunar corona. _—) 10 | 445 || 39-4 |38.2 | 1-2 | 0-1 |0-0 | 20 0-5 || Thin cirri and cirrous haze. )) 11 445 || 38-0 | 36-7 | 1-3 0-2 |0-3 | 22 0-5 Id. i 12 | 443 || 37-2 | 36-0 | 1-2 || 0-3 | 0-2 | 22 0-5 | Id. ; lunar corona. ) 13 0 || 29-134 || 46-4 |44-5 |1-9 || 2-6 | 1-0 | 21 10-0 || Sunday. Showers throughout the day. 8 28.924 Breil eco) (lacie |leiben!|iieommma he” {lf rcsoads | 11 BRANT tree He tocen Pecos Atlases aired) ema ie 0 cee een | Peleests | 13 || 28-914 || 34-4 | 33-8 |0-6 |} 1-1 |0-4 | 29 5-0 || Cirro-stratous scud ; cirro-strati ; cirri; vivid aurora. )} 14 | 920 || 37-4 | 36-3 |1-1 || 0-6 |0-5 | 29 | 9-5 | Cirro-str. scud? &c., radiating from SSW.; id. 15 | 946 || 38-9 | 36-9 |2-0 || 1-3 | 1-5 | 29 10-0 1G aurora. 16 962 || 40-0 | 37-5 | 2-5 || 1-3 | 1-0 | 28 6-0 | Scud and cirrous clouds; drops of rain; aurora. 17 || 28-976 || 40-4 | 38-6 |1-8 || 1-7 |0-8 | 28 10-0 Td. ; rain”; rain’ since 16 30™ 18 || 29-000 || 41-0 | 38-6 | 2-4 || 1-5 | 1-4 | 29 | 30:—: O 9-0 | Seud; cirri; cirro-strati ; cirrous, haze.* 19 017 || 42-3 |39-3 |3-0 || 2-2 |3-0 | 29 | 31:—:— 9-9 Id. 20 037 || 44-0 | 40-5 | 3-5 || 3-1 | 2-9 | 29 2) UB 9-9 Id.; cirro-strati; cirrous mass. 21 | 056 ||45-4 |41-3 |4-1 |/3-8 |3-7 | 29 | 29;—:—]] 10-0 || Id.; dense mass of cirro-strati ; rain”? 22 | 079 || 44-7 | 41-3 |3-4 | 6-7 | 3-4 | 29 | 30: —:—]| 10-0 Id. ; id. ; rain”? 23 || 123 || 43-5 |41-2 | 2-3 || 5-1 |4-7 | 31 || 30:—:—| 10-0 Td.5 id. ; rain® 14 0 171 || 40-6 | 39-7 |0-9 | 3-0 | 2-4 | 31 || 30:—:—|| 10-0 | Id.; Idi. rain”? 1 208 || 42-4 | 40-9 | 1-5 ||2-2 }2-0 | 31 31: —:—|| 10-0 || Id.; rain 2 || 238 | 43-4 41-3 | 2-1 ||2-7 |2.2 | 31 ||31:—:—]] 10.0 || Id; rain?” 3 | 268 || 42-0 | 40-5 | 1-5 ||2-7 |2-0 | 31 /31:—:—]] 9-8 || Id.; cirro-strati; woolly cirri. 4 304 || 43-5 | 46-4 | 3-1 || 2-6 | 1-8 0) 0 — 9-8 || Id.; iets id. ; eumuli. | 5 || 339 || 43-9 | 40-4 |3-5 ||4:5 | 3-7 0 0:—:— 9-0 || Id; id. ; id. ; loose cumuli. 6 6 | 372 || 43-3 | 39.0 | 4-3 || 4-2 | 4.4 0} 0:—:—|]|| 9-0 Id.; cirro- sates scud; cirri; cirrous haze to NNW. 7 416 || 43-2 |39-5 |3-7 ||5-2 |4.0 | 0] O:—:—]| 8-5 Id. ; id. ; woolly and mot. cir.; cir. haze- 8 | 467 || 40-9 | 37-7 |3-2 13-7 |1-5 | O | 0:—:—]| 6-0?]) Id.; cirro- strat: ; cirri.* Z 9 || 498 || 41-3 | 37-7 |3-6 || 2-4 | 2-1 | 31 8-0 || Id; id. ; woolly cirro-cumuli. 10 || 528 || 41-8 | 38-2 |3-6 |/3-7 |2.1 | 0 10:0) gilda; |) — ad: a 11 558 || 40-6 | 38-6 | 2-0 ||4-7 |3-7 | 0 | 10-0 Id. ; id. ; rain” . psf 12 598 || 39-9 | 38-7 | 1-2 || 5-1 | 3-5 0 10-0 || Id. ; id. ; rain”? 4 13 || 29-624 || 40-6 | 39-0 | 1-6 || 4-6 |3-3 | 31 10-0 || Scud; cirro-strati; rain”? 14 548 || 41-9 | 39-6 | 2-3 || 3-7 | 3-7 0 10-0 des id. 15 695 ||42-3 | 39-6 | 2-7 || 4-6 | 3-3 0 10-0 Id. ; id. 16 || 734 || 42-2 | 39-5 |2-7 || 5-4 |4-6 1 10-0 dee id. 17 | 785 |/42-7 |39-8 |2.9 5.2/4.6 | 0 10-0 || Ia; i. : 18 833 || 42-3 | 39-5 | 2-8 ||4-7 | 3-5 0 2:—:—|| 10-0 Toss id. ont 19 | 870 | 42-6 |40-0 }2.6 4-1 [5.2] 1) 2:—:—] 9-5 || Id.; cirro-cumulo-strati; cirro-strati. | 20 904 43-4 | 40.4 3-0 |\4-4 | 3-2 2) 2:—:— 7-0 Id. ; id. ; id. The direction of the wind is indicated by the number of the pont of the compass, ‘reckoning } N.=0, B.=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. i April 134 0. Observation made at 28" 50", 8h, Observation made at 7" 45™, 11", Observation made at 115 10™. oe April 142105. Observation made at 10% 5, | * See additional Meteorological Notes after the Hourly Meteorological Observations. we) bo i Re) © or g De SOMNAMB KE NWHO a 13 || 30-216 14 234 15 231 16 247 7 244 18 254 263 ion 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. Hourty METEOROLOGICAL OBSERVATIONS, APRIL 14—17, 1845. 175 THERMOMETERS. WIND. Clouds, : Se. : C.-s.:Ci.,|] Sk . é err tet Wa ay piagen ae carping ee Species of Clouds and Meteorological Remarks. 1,| 10m ay 2 a 2 Tbs lbs. pt. pt. pt. pt. 0—10. 44-2 | 41-2 | 3-0 |/4-5 | 3-1 1 2:—:—|| 6-0 || Scud; cirro-cumulo-strati; cirro-strati; cirri. () 45-2 |41-2 |4-0 || 5-2 | 3-8 1 |} 2:—:—|] 6-5 Id. ; ids; id. (3) 46-2 |41-8 | 4-4 || 5-0 | 4-4 1 ||} 2:—:—] 8-5 Id. ; id. 46-4 | 41-9 | 4-5 || 6-5 | 4-5 1 2:—:— || 6-0 || Scud and loose cumuli. (>) 47-0 | 41-2 | 5-8 || 5-0 | 4-0 1 2:—:— 5-0 Id. 8 47-4 |42-0 | 5-4 || 5-1 | 3-8 1 || 2:—:—|) 5-5 Id. (>) 46-5 |41°3 | 5-2 || d-1 | 3-3 2 || 2:—:—| 7-0 Id. 46-3 | 40-7 | 5-6 || 4-2 | 3-3 2 || 2:—:—| 3-0 Id. 0} 46-2 |41-2 |5-0 |}2-6 |2-6 | 2 || 2:—:—| 2.0 Id. 0} 45-1 |40-5 |4-6 |} 2-2 |1-8 | 2 || 2:—:— 2-5 Td. 0} 43-8 | 39-9 |3-9 || 2-0 | 0-5 2 0-5 Id. ; cirro-strati and haze on hor. © 41-6 | 38-6 | 3-0 || 1-0 | 0-0 3 0-3 || Cirro-strati and haze on horizon. ») 39-3 | 37-6 | 1-7 || 0-4 | 0-0 | 31 0-2 || Cirro-strati on horizon ; clear. ») 39-7 | 38-3 | 1-4 ||0-1 |0-1 | 31 | 2:—:—|]| 7-5 | Scud. } 38-4 |37-3 |1-1 ||0-1 |0-1 | 31 |} —: 2:—]) 8-0 || Large cirro-cumulo-strati ; milky to N. ) 37-8 | 36-8 |1-0 ||0-1 |0-0 | 30 | —: 2:—]) 8-5 Id. } 35-4 |34-9 | 0-5 || 0-0 | 0-0 2-0 || Cirro-cumuli and cirro-strati on horizon. y 37-2 | 36-2 | 1-0 || 0-0 | 0-0 9-8 || Seud. 37-2 | 35-7 | 1-5 || 0-1 | 0-1 | 30 2-0 || Cirro-strati on horizon ; thin cirrous clouds to W. 35-9 |34-8 | 1-1 || 0-0 |0-1 | 30 3-0 Td. ; clouds to E. and SE. 33-1 | 32-6 |0-5 || 0-1 | 0-1 | 22 0-2 || Woolly and linear cirri radiating from NNE ; cir.-str. 33-4 | 33-0 |0-4 || 0-1 | 0-1 | 20 0-5 || As before; cirri tinged red. {on horizon. 37-1 | 35-4 | 1-7 ||0-0 | 0-0 | 20 || —-:—: 2 2-0 || Mottled and woolly cirri ; cirro-strati on horizon. (0) 38-3 |36-8 |1-5 || 0-1 |0-0 | 22 |/—:—: 2]| 6-0 || Woolly cirri; cirro-strati. 40-9 |39.0 | 1-9 || 0-1 | 0-0 4 0 3-0 || Patches of scud ; linear, woolly, and tufted cirri. (0) 42-9 | 40-7 | 2-2 || 0-2 | 0-0 4 2-5 || Small patches of scud; linear cirri; cir.-str. ; cir. haze. © 45-3 |41-2 | 4-1 || 0-2 | 0-0 0 ||—:—: 2 5:0 || Cirri, chiefly tufted; cirro-strati; cirrous haze. 51-9 |46-1 | 5-8 || 0-1 |0-0 | 18 8-0 || Woolly cirri and cirrous haze ; solar halo. (s) 52-1 |46-3 | 5-8 || 0-2 |0-1 | 11 8-0 Id. 52-7 |46-3 | 6-4 ||0-2 |0-1 | 11 2-5 || Cirri; cirro-strati; patches of scud to N. © 53-5 |47-0 | 6-5 || 0-2 | 0-1 8 0-5 Id.; loose cumuli to N. (0) 54:3 | 46-9 | 7-4 |/0-2 |0-1 | 6 0-5 || Cirro-strati and patches of scud on horizon. (0) 55-0 |48-0 | 7-0 || 0-3 | 0-2 4 0-8 || Cirro-strati ; haze, and patches of scud on horizon. © 53-0 |46-5 |6-5 ||0-3 |0:3 | 4 1-5 Id. ; id. 0} 51-0 |45-8 |5-2 0-3 |0-1] 4 7-5 || Woolly cirri; cirro-strati. (0) 47-2 | 43-6 | 3-6 || 0-2 | 0-0 4 5-0 || Woolly cirri and cirrous haze ; cirro-strati. ») 45-0 | 42-2 | 2-8 || 0-1 | 0-1 4 5-0 Td. ; lunar corona. »)) 43-4 | 41.4 | 2-0 || 0-2 | 0-1 Faces uO 8-5 || Cirro-cumulo-strati; cirrous haze ; cirro-strati. } 41-0 | 39-5 | 1-5 || 0-0 | 0-0 —:—: 4] 8-0 || Cirri; halo-circle of light and corona.* } 37-4 | 36-9 |0-5 |/0-0 |0-0 | 17 || —:—: 4]] 8-5 || Woolly cirri and cirro-cumuli; corona. } 38-5 |37-9 |0-6 |0-0.|0-0 | 17 || —:—: 4} 9-2 || Woolly cirri and cirro-cumuli, getting thicker. >} 36-8 | 36-3 |0-5 || 0-1 |0-0 | 17 2-0 || Cirro-strati; cirri. > 39-4 | 38-7 | 0-7 || 0-0 | 0-0 | 20 10-0 Id. ; id. 40-5 |39-6 |0-9 || 0-0 | 0-0 | 19 10-0 Id. ; id. 40-9 |39-5 | 1-4 ||0-1 |0-1 | 20 || —: 4:—]] 10-0 | Cirro-stratous send. 41-3 | 39-9 | 1-4 |}0-1 |0-0 | 24 |} —: 2:—]] 10-0 Td. 42-3 |41-0 | 1-3 || 0-1 |0-0 | 25 ||} —: 2:—1|| 10-0 Id. 44-3 | 42-3 | 2-0 || 0-1 | 0-0 10-0 Id. ; cirro-strati. 48-4 |45-0 | 3-4 ||0-0 |0-0 | 22 ||: 2:—}| 10-0 || Thick cirro-strati. 48-2 |44-0 | 4-2 | 0-2 | 0-1 | 26 10-0 Id. 51-3 | 46-6 | 4-7 || 0-1 | 0-1 | 17 10-0 Id. 57-0 |51-5 |5-5 || 0-1 | 0-1 | 14 |} —: 0:—|| 10-0 || Cirro-stratous seud; cirro-strati; cumuli. 59-8 |53-0 |6-8 || 0-1 | 0-1 7 || —:30:—| 10-0 Id. ; id. @ 58-0 | 51-4 | 6-6 || 0-2 | 0-1 7 ||—:30:—|| 9-5 || Cirro-cumulo-strati ; cumuli; haze. (>) 57-9 | 50-9 |7-0 | 0-2 |0-2 | 6 |} —:30:—|| 6-0 Id. ; id. (2) 58-2 | 51-8 | 6-4 || 0-2 10-3 6 ||—:30:—!'! 9-5 Id. ; id. e direction of the wind is indicated by the number of the point of the compass, reckoning N.—0, HE.=8,8.= 16, W.=24. The 176 HovurLty METEOROLOGICAL OBSERVATIONS, APRIL 17—19, 1845. | || THERMOMETERS. WIND. Gott. Baro- | | Mean || METER Maximum Time. |) at 32°. | Dry. | Wet. | Die] force in [From I} 1», )10™. of Tal eee ios ° o) ||leipst (abe: liege: 17 5 || 30-187 || 58-2 |51-5 |6-7 0-3 |0-3 | 5 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] 6 9|| 167 || 51-7 | 48-2 |3-5 0-2 |0-1] 4 10 167 || 49-3 | 46-0 |3-3 |}0-1 |0-0 | 4 l1|| 166 | 48-4 | 45-9 |2.5 | 0-1 ]0-0| 4 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 | 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 19|| 124 | 48-3 /46-8 |1-5 |}0-0 |0-0 | 2 20|| 122 || 50-2 | 48-1 |2-1 0-1 |0-0 | 4 21 118 || 51-9 |49-7 | 2-2 0-0 |0-0| 8 22|) 119 || 52-4 | 49-8 |2-6 0-1 [0-1] 6 23|| 122 || 52-3 | 49.3 [3-0 10-2 |0.3 | 5 18 0] 120 || 54-2 |51-2 [3-0 0-3 0-2] 7 1|} 119 |/53-5 | 51-2 | 2-3 ||0-3 }0-3 | 7 2|| 111 |} 54-3 |51-4 |2-9 10-6 |0-5 | 5 3 107 || 54-0 | 51-0 |3-0 0-6 |0-4 | 5 4|| 093 153-6 |51-0 |2-6 0-4 {0-3 | 7 5|| 089 || 53-6 | 51-4 |2.2 j}0-4 }0-3 | 4 6 || 083 || 51-3 | 49-9 | 1-4 ||0-3 |0-2 |} 6 7 090 || 48-3 | 47-4 |0-9 0-8 |0.4 | 4 S|} 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 10-1 [0.0 | 8 15 084 || 41-9 | 40-6 |1-3 10-1 |0.0] 4 16|| 075 || 41-4 |40-3 |1-1 | 0-2 |0-0 | 0 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 19|| 077 || 41-3 |40-0 | 1-3 |/0-1 | 0-0 20|| O80 | 44-1 | 42-6 |1-5 | 0-0 |0-0 21|| 072 | 46-7 |44-3 |2-4 0-2 |0.4 | 2 22|| 071 |48-3 |45-1 |3-2 | 0-4 [0.2] 5 23|| 061 | 50-2 |46-7 |3-5 0-5 |0-5 | 3 19 O| 054 | 52-0 |47-9 |4-1 10-6 |0-5| 4 1|| 048 |51-3 |46.7 |4.6 0-7 |0-7 | 5 2\| 045 152-1 |47-7 |4-4 11-0 |0.6 | 7 3|| 031 | 51-2 |46.6 |4-6 | 1-2 |0-7 | 11 4\| 023 |51-4 |47-0 |4.4 |/1-0 |0-6 | 7 5|| 022 |50-1 |45-7 |4-4 10-7 |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 10-4 |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 12|| 039 |40-5 |39-9 |0-6 0-1 10-0] 3 Clouds, Se.: C.-s. :Ci., moving pt. erfentorericnt| | | eee from pt. :29: wNnonwnw- TL LT Te oe Sky clouded. Species of Clouds and Meteorological Remarks. : Cirro-cumulo-strati ; cirro-strati; haze. ©} Cirri; cirro-strati and haze on horizon. (0) Bank of cirro-strati to E.; cirri. o} Cirro-stratous seud. Td. Cirro-cumulo-strati; lunar corona. a Cirro-strati; cirro-cumulo-strati. ao Id. ; id. | Cirro-strati ; cirro-cumulo-strati. ] Cirro-cumulo-str ; cirro-strati lying in ridges N. to S, | Homogeneous. 7 Seud and cirro-strati broken up. Thick cirro-strati. Thick rippled cirro-strati. Id. Id. Cirro-strati ; cirrous mass. Id. ; id. Cirro-stratous scud. Id. Id. Misty seud breaking. Seud ; cirro-strati. Td. ; id. ; mist at 3 miles. Scotch mist at 1 mile. Td. ; light drizzle. Send. ; light drizzle, Id. Id. Seud. Td. Id. Id. Cirro-stratous scud ; cirro-strati; cirri. Cirro-cumuli ; cirro-strati; woolly cirri; cirrous haze Thick cirro-stratous scud and cirro-strati. Homogeneous mass of cirro-strati? ; patches of seud, Misty scud ; cirro-stratous scud ; slightly foggy. =) i Thick scud. 4 Scud ; loose cumuli. Id. ; id. Td. ; id. Patches of scud. © Id. © Id. O} Cirro-strati and haze on horizon. © Td. : Id. Haze round horizon. >. Id. ) | Cirro-strati and haze. | Misty scud moving rapidly ; corona; milky toN. }] I by or fog at } mile. Z| 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. Hovurty METEOROLOGICAL OBSERVATIONS, APRIL 20—22, 1845. THERMOMETERS. es Wind. Clouds, le | ee ee aaa a) z Se.: C.-s,: Ci.,!] Sk METER A leg moving i senna Species of Clouds and Meteorological Remarks. at 32°. || Dry. | Wet. | Diff. From from Ts, | 1o™. Ibs. } lbs. | pt pt. pt. pt. || 0-10. in. ts i? - i ¥ 30-039 || 53-2 | 49-6 | 3-6 0-3 | 0-2 6 | seers | Sunday—Very clear all day ; very faint streaks of cirrus seen near hor. 30-039 || 37-6 | 36-9 | 0-7) 0-6 | 0-0 | 0-0 || Very clear; heavy dew. ») 034 || 36-6 | 36-3 | 0-3|0-0 |0-0 | 18 00 } Ia; id. ») 028 || 36-6 | 36-4 | 0-2 0-0 |0-0 | 18 0-1 || Very thin cirri to SW. ; corona. ») 025 || 34-2 |33-9 | 0-3) 0-0 | 0-0 0-2 || Thin cirri to SW.; cirrous haze on E. horizon. »)) 020 || 34-8 | 34-6 | 0-2) 0-1 |0-0 0-4 || Cirri to E. and S. 020 || 35-5 |35-0 | 0-5] 0-0 |0-0 | 20 0-4 Td. fo) 024 || 39-2 | 37-6 | 1-6/0-1 |0-1 | 20 0-5?)|| Thinnest cirrous streaks near horizon. © 017 || 41-4 | 39-4 | 2-0 0-1 |0-0 | 22 0-5? Id. fo} 008 || 46-5 | 43-2 | 3-3) 0-1 |0-0 | 24 0-1 Id. (9) 30-004 || 52-3 |47-2 | 5-1 0-1 |0-0 | 30 0-2 Id. (0) 29.999 || 57-2 |49-8 | 7-4 | 0-1 | 0-0 14 0-2 || Thinnest patches of seud to S. © 982 || 60-0 | 51-0 | 9-0 0-1 | 0-1 8 6:—:—\|| 0-5 || Patches of scud and cumuli to S.; cirrous streaks. © 969 || 62-2 | 53-0 | 9-2/0-2 |0-4 | 4 0-5 Id. ; id, (0) 955 || 64-3 | 55-0 | 9-3 || 0-4 |0-5 6 0-2 Id. ; haze on horizon. © 931 || 64-2 |53-0 |11-2||0-6 |0-6 | 7 0-5 Id. ; id. (0) 927 || 63-9 |52-4 |11-5]|0-8 |0-7 | 7 0-2 || Streaks of haze. (0) 920 || 63-3 | 51-9 |11-4||0-5 |0-3 9 0-2 Id. (o) 915 || 62-9 | 50-7 |12-2)| 0.4 |0-5 7 0-5 Id. (0) 9117) 59-5 | 48-7 |10-8|/0-4 |0-0 | 8 0-5 || Vertebrated cirri. (0) 920 53-7 |46-7 | 7-0)/0-1 |0-0 | 12 |, —:—: 4] 1-0 || Woolly cirri; hazy on horizon. ») 921] 49-8 |45-7 | 4-1|| 0-0 | 0-0 0-5 Ida id. »)) 919 || 44-0 | 41-6 | 2-4||0-0 |0-0 | 14 0-0 «|| Clear. y 915 || 40-8 | 39-6 | 1-2||0-1 |0-0 | 17 0-0 Id. »)) 916 || 39-3 | 38-4 | 0-9||0-0 |0-0 | 17 0-0 Id. y 29-905 || 37-8 | 37-4 | 0-4|/0-1 |0-0 | 16 0-1 || Thin cirrous clouds to SW. »)) 897 || 36-3 | 36-1 | 0-2|/0-0 |0-0 | 17 0-1 Id. »)) 898 || 34-4 | 34-1 | 0-3|/0-0 |0-0 | 18 0-1 Id. »)) 897 || 33-9 | 33-8 | 0-1|/0-1 |0-0 | 18 0-2 || Linear cirri on NE. horizon. »)) 889 || 31-1 | 31-0 | 0-1]||0-1 |0-1 | 22 0-5 Id. ; hazy. 894 | 35-8 | 34-6f| 1-2] 0-0 | 0-0 | 22 0-5 Id. ; id. (0) 893 || 36-3 | 35-9 | 0-4] 0-2 |0-0 | 22 0-0 || Clear; slightly milky to E. ro) 892 | 42-6 |40-6 | 2:0||0-0 |0-0 | 6 0-0 Id. ro) 893 ||46-8 | 43-7] 3-1] 0-1 |0-0 | 6 0-2 || Cirri and haze on horizon. (0) 884 || 53-4 |47-0 | 6-4//0-2 |0-3 | 6 0-1 || Cirro-strati on NE. horizon. ro) 875 || 55-9 |48-3 | 7-6]|/0-5 |0-5 | 2 0-0 || Clear. fo} 861 | 59-4 |50-2 | 9-2/0-8 |0-4 | 6 0-0 || Milky streaks. (0) 850 || 60-8 | 50-4 |10-4] 0-8 |0-7 | 7 0:0 Id. near horizon. fo) 841 || 61-9 | 50-4 |11-5|/ 1-3 |0-8 | 12 0-0 || Clear. (0) 828 || 62-0 | 50-7 |11-3|/ 1-2 |1-0 | 10 0-0 || Thin streaks of cirri to S. (0) 809 || 61-3 | 49-9 |11-4/}0-2 |0-8 | 8 0-0 || Clear. fo} 809 || 58-8 | 50-3 | 8-5) 1-0 | 1-0 6 0-0 Id. (0) 807 || 56-9 49.4t 7-5 || 1-0 |0-8 6 0-0 Id. [o) 806 || 55-7 |47-6 | 8-1]0-6 |0-4 |] 6 0-1 || Thin streaks of cirri to E. ro) 811 || 51-0 46-7] 4:3 || 0-3 | 0-1 5 0-1 Td. 813 || 48-1 |43-9 | 4-2]/0-1 | 0-1 4 0-0 || Haze round horizon. 45-3 | 42-4 | 2-9|/0-1 | 0-1 6 0-0 Id. »)) 40-4 | 39-4 | 1-0] 0-0 |0-0 | 24 0-0 || Clear ; greenish corona, 3° diameter. ») 37-0 | 36-5 | 0-5||0-0 |0-0 | 24 0:0 Td. ») 35-4 | 35-0 | 0-4|/0-0 |0-0 | 24 0-0 || Clear; faint corona. ») 34-2 |33-9 | 0-3] 0-0 |0-0 | 20 0-0 Id. y 34-0 | 33-8 | 0-2|/0-2 |0-0 | 22 0-0 Id. y 33-8 | 33-6 | 0-2]/0-1 |0-0 | 20 0.2 || Reddish vapours. »)) 31-7 | 31-6 | 0-1] 0-0 |0-0 | 18 0-2 Id.* »») " 33-3t] 0: 5 -0 20 0-2 | Haze. {0} pril 202174. « Lyra was visible till 17 26™; the sun’s upper limb was above the horizon at 17» 31™, pril 20419. Observation made at 19» 8™, pril 214 18h. + Thermometers removed to the western side of the Observatory before 185. 214 21. | Returned after 21h. 224 6b, + Ther- removed to the eastern side of the Observatory before 6h. 2248, | Returned after 81, See Introduction, p. liv. e additional Meteorological Notes after the Hourly Meteorological Observations. AND MET. ops. 1845. Qix. ? 178 Hourty METEOROLOGICAL OBSERVATIONS, APRIL 22—25, 1845. | THERMOMETERS. WIND. Clouds | Sed Leal | | Maximum Se. : C8. :Oi., Sky Siudetea of! Claude ’antd: Mateneclocitate re | Time. at 32° Dey. Wee. (Dake forcelin iors maeee clouded. pecies oO} ouds an eteorologica! emarks, | | 1h, | 10m, rom d. oh in. Wa ae - © |libs. | Ibs. pt. pt. pt. pt. 0—10. 22 19] 29-761 | 36-1 | 35-1 | 1-0) 0-1 | 0-0 | 20 0-2 |) Very thin cirrous cloud to E. [o) 20 754 || 40-2 | 38-1 | 2-1 || 0-1 | 0-0 0-1 Id. fo) 21|} 746 45-2 |42.4 | 28] -. |... 0-2 i 22 739 || 50-7 | 45-0 | 5-7)/0-1 |OL| 8 1-5 || Linear cirri and haze to E. [o) 23 724 ||55-3 147-8 | 7-5|/0-3 |0-2 | 7 2.0 Td. (0) 23 0 704 || 57-7 |49-8 | 7-9|/0-5 |0-4) 7 2-5 || Woolly and linear cirri to E. [o}| 1 693 || 59-2 |51-4 | 7-8|/0-6 |0-5 | 7 || 8:—:14]] 3-0 || Patches of scud; woolly cirri and haze. 0) ie 2 678 || 59-0 | 50-6 | 8.4} 0-7 | 0-7 6 ||—:—:14]) 2.5 Id. ; id. (0) : 3 663 | 57-8 |49-2 | 8.6] 1-0 |0-7 | 7 ||—:—:14]] 3.0 || Woolly and linear cirri. >) 1 47 | 56-8 |49-2 | 7-6] 1-2 |0-7 | 7 ||—:—:14] 5.0 Id. Oo} 5 628 | 57-2 | 49-2 | 8.0]| 0-7 | 0-5 5 |}—:—:16] 6-0 Id. 0) 6 625 | 53-7 |47-6 | 6.1|/0-6 |0-4 | 7 || —:—:14]) 8.0 || Woolly linear and diffuse cirri; halo. s) 7|| 624 | 51-3 |46-6 | 4.7¢/ 0-4 |0-2) 6 ||—:—:14]| 7-0 Ia. ; id. =) 8 624 |45.4 [42-7 | 2.71 0-4 |0-2 | 7 ||—:—:14]| 7.0 Id. ; fog bank to E. ; 9 652 || 42-2 |40-7 | 1-5 || 0-2 | 0-1 4 8-0 Id. ; id. | 10 620 || 39-8 |39-2 | 0.6] 0-1 |0-1 | 7 7-0 Liles id. { 11 619 | 38.3 | 38-2 | 0.1] 0-1 | 0-0 10-0 |) Cirrous mass and haze. 12|| 625 || 38-2 |38-1 | 0.1] 0-1 | 0-0 10-0 || Fog; objects invisible at 100 yards. 13 || 29-614 || 37-2 | 37-0 | 0-2) 0-0 | 0-0 10-0 || Fog; objects invisible at 100 yards. 14 606 || 36-8 | 36-7 | 0-1] 0-0 | 0-0 10:0 || Id. 15 598 | 35-9 | 35-7 | 0-2] 0-0 | 0-0 10-0 Id. 16 596 || 35-6 | 35-3 | 0-3] 0-0 | 0-0 10-0 || Id. 17 587 | 34-0 | 33-8 | 0-2||0-0 |0-0 | 22 10-0 Id. ; objects invisible at 300 yards. 18 587 || 33-4 | 33-2 | 0-2] 0-0 |0.0 | 20 10-0 || Id.; id. 200 yards. 19 592 || 35-0 | 34-8 | 0.2] 0-0 | 0.0 10-0 || Id.; id. 250 yards. 20 597 || 36-2 | 36-0 | 0.2 | 0-0 | 0-0 8 10:0 || Id.; id. 500 yards. 21 601 || 37-2 | 37-0 | 0-2|/0-1 | 0-1 | 10 10-0 || Id.; id. 3 mile. 22 601 | 40-5 | 39-8 | 0-7 || 0-2 | 0-1 7 10-0 || Id.; id. 3 miles. 23 594 || 44-3 142-9 | 1-4|/0-1 | 0-1 5 4: 9:— 9.9 || Fog-cloud ; cirro-strati. ; 24 0 584 || 46-0 | 43-8 | 2.2]/0-3 |0-2 | 4 3-0 || Cirri; portion of a halo ; Cheviot invisible. © 1 566 || 50-6 | 46-2 | 4.4] 0-3 | 0.3 4 ||—:—:10 5-0 Id. ; id. ; patches of scud, 0 2) 559 || 54-0 47-7 | 6.3} 0-5 | 0-5 4 || 5-0 | Id.; id. ; id. © 3 548 ||52-7 |47-7 | 5-0/10-7 |0-7 | 3 4.0 || Id.; id. ; cirrous haze. F 0} 4] 537 |52-6 |47-8 | 4.8]/0-7 |0-7] 5 4.0 || Id.; id. ; id. 5 537 ||51-0 |46-7 | 4.3/|0-8 |0.5| 3 2.0 || Id.; hazy to E. C 6 531 || 50-3 [46-6 | 3-7||0-5 |0.3| 3 1.5 || Id.; id. o)F 7 519 | 48-3 |45-3 | 3.0} 0-5 | 0.4 3 0-8 || Id. nO) | 8 541 || 44-7 | 43-3 | 1-4] 0-3 | 0-1 2 0-0 || Haze on horizon, i 9|| 542 || 41-7 |41-1 | 0.6/0-2|0-0} 4 0-0 Ia. 10 541 || 39-7 | 39-6 | 0-1/0-2|0-0! 6 10-0 || Fog commenced at 9" 55™ from eastward. 11 546 || 39-7 | 39-6 | 0.1 || 0-1 | O-1 7 10-0 || Fog; objects invisible at 200 yards. 12 548 || 39-6 | 39-5 | 0-1} 0-1 | 0-0 10-0 |) Id.; id. 100 id. 13 || 29-545 || 39-3 | 39-2 | 0-1]00 | 0.0 10-0 Fog ; ; objects invisible at 100 yards. 14 o41 | 39-3 | 39-2 | 0-1} 0-0 | 0-0 | 10-0 id. 200 yards. 15 537 || 38-8 | 38-6 | 0-2] 0-0 | 0.0 8 10-0 7 5 id. 200 yards. 16 527 || 38-2 |38-0 | 0-2|/0-0 | 0-0 | 15 10-0 | Id.; id. 200 yards. 17 529 || 37-9 | 37-7 | 0-2 || 0-0 |0-0 10-0 |) Id. ; id 200 yards. 18 530 || 37-7 | 37-5 | 0-2] 0-0 |0-0 | 18 10-0 | Id.; id. 200 yards. | 19 528 || 38-0 | 37-8 | 0-2] 0-0 | 0-0 | 28 10-0 | Id.; id. 250 yards, P| 20|| 535 || 38-4 | 38-2 | 0.2]/0-0 |0.0 | 26 10-0 || Ia. ; id. 300 yards, ; 21 530 || 40-5 | 40-3 | 0.2]| 0-0 | 0-0 4 10-0 | Id.; id. 350 yards, 22 525 || 43-4 | 42-7 | 0-7 || 0-1 | 0-1 8 10-0 || Id.; id. 4 mile. 23 501 | 45-1 | 44-0 | 1-1}}0-2]0-1 | 4 |) 6:—:—] 9-9 |) Fog clearing off; loose foggy seud. 250 474 || 50-7 |47-8 | 2-9||0-3 | 0.2 4 112:—:24 2-0 | Cumiuli to S. ; woolly cirri; very hazy on horizon. © 1 448 | 58-6 | 53-2 | 5.4|/0-4 10-5 4 || 14:—:24 3-5 || Detached cumuli; id. ; id. +| 2) 434 ||65-6 |55-3 |10-3 1-5 12-0 | 15 |116:—:—]} 8-5 |! Cum.; cir. and cir. lavas electric-looking ; very hazy. | 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. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a five manner. April 244 0" 40, It was found on trial that when the feather-vane was pointing from the north, its index pointed to NNE. ; the index | was setright; this error could have existed for a short period only. Hovurty METEOROLOGICAL OBSERVATIONS, APRIL 25—28, 1845. 179 THERMOMETERS. WIND. Clouds, a Maximum Se.: C.-s.: Ci., Sky Speci £ Cloud a Met logical R. k at 32°. || Dry. | Wet. |Diff.|| foreein |yom mores clouded. pecies of Clouds and Meteorological Remarks. 14, |10™, in. 0) G S. Ibs. | Ibs. | pt. |] pt. pt pt. 0—10. 29-410 || 63-4 | 54-7 |8-7 || 1-7 | 1-1 | 14 || 16:—:—|| 9-5 || As before; solar halo. 385 || 62-8 | 53-9 |8-9 || 2-0 | 1-7 | 13 10-0 || Nearly homogeneous cir. haze; patches of cum. to SW. © 367 || 60-9 | 53-7 | 7-2 || 1-9 | 1-3 | 14 10-0 || Thick cirrous haze. 362 ||58-3 | 52-4 | 5-9 || 1-5 | 0-5 | 14 10-0 Id. 330 || 57-2 | 51-3 |5-9 ||0-7 | 0-3 | 13 10-0 Td. 307 || 56-8 | 50-6 | 6-2 ||0-9 | 0-5 | 12 || —:16:—}]} 10-0 || Cirro-stratous scud ; cirro-strati; cirrous mass. 286 || 56-7 | 50-3 | 6-4 || 1-2 | 1-2 | 14 10-0 Id. ; id. ; id. 259 || 55-7 | 49-8 | 5-9 || 1-3 | 1-5 | 14 10-0 || Seud and cirro-strati. 225 1155-6 | 49-6 |6-0 || 2-0 | 1-5 | 14 10-0 Td. ; light, as from a fire on S. horizon.* 203 || 54-4 |49-6 | 4-8 || 2-1 | 0-6 | 14 10-0 Id. 29-154 || 53-3 | 49-4 | 3-9 | 1-8 | 1-8 | 14 10-0 || Seud and cirro-strati ; drops of rain. 100 || 52-7 | 49-7 | 3-0 | 3-3 |4-3 | 15 10-0 Td. ; rain!; light on hor. to N by E.* 062 ||52,7 | 50-8 | 1-9 | 3-7 | 3-0 | 14 10-0 diss rain? 29-030 | 51-6 | 50-2 | 1-4 || 3-4 | 1-5 | 14 10-0 Wats rain! 28-999 || 51-8 | 50-2 | 1-6 || 2-4 | 2-7 | 15 || 14:—:—J} 10-0 || Seud; seud and cirro-strati ; rain °° 985 |/51-5 | 50-2 | 1-3 || 1-7 | 1-5 | 14 || 14:—:—|| 10-0 Id. ; id. ; id. 968 || 51-6 | 50-3 | 1-3 || 1-5 | 1-6 | 15 || 14:—:—]| 10-0 Id. id. ; rain 1? 948 || 53-2 | 52-0 | 1-2 || 2-0 | 1-3 | 16 || 15:—:—}]| 10-0 Id. ; id. ; id. 929 || 54-4 | 53-0 | 1-4 || 1-2 | 0-4 |] 15 || 16:—:—| 10-0 Id.; dense mass of cirro-strati; drops of rain. 941 || 55-0 | 53-0 | 2-0 || 0-8 | 0-3 | 16 10-0 Id. ; id. ; rain 1 [thick. 934 || 56-0 | 54-4 {1-6 || 0-8 | 0-6 | 17 || 17:—:—|| 10-0 lige id. ; clouds dark and 971 || 54-0 | 51-8 | 2-2 || 1-4 | 1-4 | 20 || 20:—:—|| 9-9 || Id.; cirro-strati; cirrous mass; sky to SW. 28-984 55-8 | 51-7 |4-1 ||2-4 |1-6 | 18 ||}20:—:—]|| 9-5 Id.; loose eumuli; cirro-strati ; woolly cirri. 29-008 || 55-9 | 50-4 | 5-5 || 2-2 | 1-6 | 22 |) 20:—:—|| 4-0 || Loose cumuli; id. ; id. (0) 002 || 56-0 | 49-8 | 6-2 || 2-3 | 1-7 | 20 || 20:—;— 2-5 Id. ; id. id. (o) 003 || 57-2 | 50-8 |6-4 || 1-7 |1-3 | 18 || 19:—:—]| 3-0 Td. ; eumuli; cirro-strati. fo) 008 | 57-4 | 48-4 |9-0 || 1-8 |0-6 | 20 || 18:—:— 1-5 Td. (0) 003 || 56-2 | 48-3 | 7-9 ||0-7 |0-2 | 16 | 16:—:—]| 3-5 Td. ; cirro-stratous scud ; cirri. © 012 || 50-1 | 46-9 | 3-2 || 2-5 |0-4 | 16 | 14:—:—|| 9-5 || Seud; cumuli; nimbi; cumulo-strati; cirri; showers. 020 || 49-6 | 45-6 |4-0 || 0-5 | 0-4 | 15 || —:14:—|| 9-0 || Cirro-stratous scud ; rain? 017 || 47-3 | 44-4 |2.9 ||0-4 |0-2 | 14 |] —:14:— 7-0 Id. 017 || 48-0 | 45-3 | 2-7 || 1-4 |1-0 | 16 10-0 Id 023 || 47-2 | 45-3 |1-9 | 1-0 |0-3 | 17 9-8 Id 29-033 || 47-9 | 45-7 | 2-2 |/1-0 10-5 | 18 10-0 | Rain °? Lt perath Sunday—Seud ; cirro-cumulo-strati; showers through- 28-976 || 55-0 | 50-7 |4-3 ||4-2 |2-6 | 16 || 16: 18:—| 10-0 { out the day. & 29-117 || 48-9 | 46-7 | 2-2 ||4.2 | 1-3 | 20 5-0 Scud. 144 || 48-4 | 46-4 | 2-0 |}2-0 |} 1-1 | 20 4.0 Id 158 ||47-8 | 46-2 | 1-6 || 2-2 | 1-6 | 20 7-0 Id. 177 ||47-9 | 46-7 | 1-2 || 1-6 | 1-1 | 18 || 20:—:—| 9.5 Id. ; rain”? 191] 47-8 | 46-2 | 1-6 |}1-8 | 1-1 | 20 7-0 Id.; woolly cirri, lying WSW. and ENE. 206 || 47-2 | 45-4 |1-8 }| 1-2 | 1-0 | 20 |, 21:—:21}| 7-0 || Id; id., lying SW by W. and NE by E. 233 || 48-6 | 46-5 |2-1 || 1-5 |0-5 | 18 || 21:—:— 7-0 Id.; loose cumuli; cirro-cumulo-strati. 251 || 50-6 | 47-9 | 2-7 || 1-4 |0-7 | 20 || 20:—:—]| 9.9 Id.; dense cirro-strati and cirro-cumulo-strati. 277 || 51-2 | 48-1 |3-1 | 1-0 |0-8 | 20 || 20:21:—J) 10-0 Id. ; id. 288 |151-9 | 48-4 | 3-5 || 1-2 | 1-0 | 19 || 20:21:21 9.5 Id.; woolly cirri; cirro-cumulo-strati; shower °” 300 || 53-7 | 50-2 |3-5 || 1-6 | 1-1 | 19 || 20:21:—)) 9-8 Id. ; cirro-strati ; drops of rain. 311 |}54-7 | 50-2 | 4-5 || 1-3 | 1-4 | 20 9-9 Id. ; id. 326 || 55-9 | 51-7 | 4-2 || 1-4 | 1-3 | 19 || 20:—:— 9-8 || Id.; id. 336 156-7 | 51-3 |5-4 || 1-7 |0-9 | 20 || 20:—:—|]| 9-8 Id. ; id. 339 1157-9 | 51-6 |6-3 || 1-0 | 1-2 | 21 || 20:22:22]| 9-8 Id. ; loose cumuli; woolly cirri; cirro-strati. (3) 345 157-0 | 51-2 | 5-8 || 1-2 |0-9 | 20 ||} 20:21:—| 10-0 | Id.; id. ; cirro-cumulo-strati ; cirro-strati. 351 || 56-1 | 50-3 | 5-8 ||0-7 | 0-3 | 19 10-0 | Thick cirro-strati and cirro-cumulo-strati. 366 || 54-8 | 48-8 |6-0 ||0-2 |0-1 | 21 10-0 || Scud ; cirro-strati; cirrous mass. 369 || 52-8 | 48-3 |4-5 ||0-2 |0-2 | 18 || 20: —:—|| 10-0 Td. ; nd = id. ; drops of rain. 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. April 264 23". Observation made at 23 20™, April 284 15. Observation made at 1 6™, * See additional Meteorological Notes after the Hourly Meteorological Observations. 180 Hovrty METEOROLOGICAL OBSERVATIONS, APRIL 28—30, 1845. || THERMOMETERS. WIND. Gott. || Baro- | Mean | METER Maximum Time at 32°. | Dry. | Wet. | Diff. | force in |from 18 490 | 46-0 bo COnNaupwnr own a i=) —_ or a So 29 13 | 29-620 | 47-6 14|| 612 | 47-8 15|| 603 || 48-1 16|| 584 || 48-4 17|| 583 || 48-4 18|| 598 || 49-8 19|| 610 || 50-7 20|| 601 | 52-1 21|| 604 | 53-2 22|| 604 || 54-4 23) 608 | 56-2 596 || 53-8 567 || 56-6 533 || 57-4 502 || 57-9 469 || 62-6 446 || 57-7 414 |) 56-8 382 | 55-0 348 || 52-5 |} 341 || 52-7 10]| 332 | 52-0 11] 325 |/51-3 12) 309 | 51-0 29-291 |, 50-5 14|| 268 | 50-8 30 OMNIA hWwnNreod 15) 261 || 50-8. 1s, (10™. 50-4]) 4-5 || 1-2 50-0 | 5-2 || 1-2 |0-7 | 21 51-4 |5-6 || 1-5 | 1-2 | 21 51-3 |6-2 || 1-1 |1-0 | 20 52.0 | 6-0 || 1-3 |0-7 | 20 51-2 |7-0 || 1-9 | 1-2 | 21 49.6 |7-4 || 1-3 |1-0 | 20 49-5 |6-3 || 1-5 |0-8 | 18 49-3 | 3-9 || 1-3 |0-6 | 21 48-3 | 3-3 |\0-7 |0-2 | 20 46-7 | 2-5 || 0-6 | 0-3 | 20 47-3 | 1-0 || 0-5 |0-3 | 19 46-7 | 0-7 || 0-2 |0-0 | 16 45-7 | 1-2 |/0-1 |0-0 | 16 45-3 | 1-3 || 0-1 |0-0 | 16 46-0 | 1-6 || 0-2 |0-1 | 17 46-3 | 1-5 || 0-4 |0-2 | 16 46-6 | 1-5 ||0-2 |0-1 | 18 46-9 | 1-5 || 0-4 |0-5 | 16 47.0 | 1-4 || 0-8 |0-1 | 16 48-1 | 1-7 ||0-1 |0-1 | 15 49.2 | 1-5 || 0-3 |0-5 | 17 50-1 | 2-0 | 1-4 |0-8 | 16 50-5 | 2-7 || 1-0 |0-6 | 18 51-3 | 3-1 || 1-0 |0-4 | 21 52-2 |4-0 || 0-8 |1-8 | 18 50-5 | 3-3 || 1-2 |0-6 | 20 52.2 |4.4 1-2 |1.0 | 18 52-6 |4-8 | 1-6 |1-0 | 17 2 || 2-8 | 2-4 | 17 52:3 |5-4 |/3-0 |2-1 | 19 52-9 |3-9 ||3-8 |3-7 | 18 51-4 13-6 ||3-0 |2-8 | 18 51-5 |1-0 || 3-2 |2.0 | 19 51-3 | 1-4 ||4-6 |3-6 | 18 50-6 | 1-4 || 4-4 | 2.6 | 18 49.8 | 1-5 || 3-0 | 2-0 | 20 | 49-4 |1-6 ||3-7 |28 | 20 48-6 | 1-9 || 3-9 |2-3 | 20 48-4 | 2-4 || 5-1 |5-0 | 21 48-2 |2.6 || 3.5 |4.0 | 20 Species of Clouds and Meteorological Remarks. Thick cirro-strati; rain! : 7 } Id. ; rain! | Id. ;? rain! | Seud and cirro-strati; sky to W. i | Seud and cirro-strati. Id. | Cirro-stratous scud. yy | Id. ; Smoky scud ; cirro-strati; cirro-cumuli. »)) Eds; id. ; cirri. (0) Cirro-cumulo-strati; bank of cirro-strati round hor. ©) Id. (0) Loose cumuli; cirro-strati to E. O} Id. ; id. ; eumuli. © Id. ; cumuli; cum.-str. ; cir.-str.; cirri. © Scud and loose cum. ; cum. ; cir.; portion of faint halo.@ 1G cirrous mass. =) Nays id. ; faint halo. e} Id. ; id. ; id. (0) Id. ; id. ; id. ©) Id. ; ads id. 3) Scud; nearly homogeneous cirrous mass, thicker. Td. ; id. Homogeneous cirrous mass ; rain” Scud ; homogeneous cirrous mass ; rain’? ings id. ; rain’? Rain?? Id. Seud and cirro-strati. Td. Id. ; drops of rain. Seud ; loose cirro-cumulo-strati. Loose seud ; thick cirro-strati. Id. ; cirri to W. Id. Id. tess ecirro-strati ; cirri. Id. ; id. Id. ; id. Id. ; id. Smoky scud; scud; cirro-strati; cirrous mass. Mottled cirro-strati; secud ; cumulo-strati. Seud ; cirro-strati. Id.; cirro-stratous scud ; masses of cirro-strati. Td.; id. ; id. 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. Send; faint auroral light to N. “apy Clouds, \Se.: C.-s.:Ci.,|| Sky moving _||clouded. from pt. pt. pt. 0—10. 10-0 10-0 10-0 9-8 7-0 5-0 2-5 8-5 21:23:— 25 21:23:— 1-0 —:21:— 15 —:21:— 5-0 20:—:— 5-0 20:—:—|| 9-0 20:—:— 8-5 20 :—:— 9-5 20:—:— 9-9 20:—:—)] 99 20:—:—|| 9-9 9-5 20:—:—] 10-0 20:—:—) 10-0 20:—:—} 10-0 10-0 10-0 10-0 10-0 10-0 9-8 10-0 10-0 20:—:— 9-0 18:—:—|| 10-0 18:—:—|| 10-0 19:—:—|| 10-0 19:—:—) 10-0 20:21:— 9-0 20:—:— 9-9 19:—:— 9-9 19:—:—|) 10-0 18:20: 22)| 10-0 —:22:—|| 10-0 18:—:— 9-8 18:—:— 9-8 18:—:— 9-9 18 : 20: 20 7-0 18:—:— 9.5 19: 20: 20 8-0 19:—:—|]| 10-0 20:—:—|| 8-5 7-0 6-0 4.0 3-0 9-0 | Id. Id. ; 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. = 24. The | motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci, (cirrus), are indicated in a similar manner. April 304 1>— 2, Clouds wild and stormy-like. HovurLy METEOROLOGICAL OBSERVATIONS, APRIL 30—May 2, 1845. 181 THERMOMETERS. Clouds, Gott. Pe ocean] ) aileeromnapian| a al “(1 = Ci kk: Mean || METER y ge g ra a ty ee Species of Clouds and Meteorological Remarks. {rT ime. || at 32°. || Dry. | Wet. | Diff. ‘fam O a. ob in. ° : ‘ . Sorisy ee . (0 16 || 29-258 “5 | 48-0 | 2- - : : " - Smoky scud ; cirro-strati. 251 -3 | 47-8 | 2- : . ; 3 5 Id. ; id. 270 || 51-0 | 48-24 2-8 |] 4-1 |3- — : Id. ; id. 259 “4 | 48-0 | 2- . ‘ 2 2 : Seud ; loose cumuli. 271 -6 | 49.31) 3- . : :—: : Loose scud ; linear cirri; cirro-strati. 277 6 | 49-5 | 4. . . 2D: A Id. ; loose cirro-strati ; cirri; cirrous haze. 276 -1 | 49-7 | 4. : : :—: 5 be woolly cirri; cirrous haze; clear to N. 269 “6 | 51-4 | 5- o : Reve : IiGk 3 cirro-strati. 266 -6 | 50-6 | 3- . . :—: 5 Scud ; loose cumuli; linear cirri; cirro-strati. 260 +3 |49-0 | 2- . - — : Id.; nimbi; cirro-strati; shower! 245 2 Id.; cumuli; nimbi. 250 Id.; nimbi; cirro-strati; passing showers. 249 Tats) ides id. ; double rainbow. 233 Id.; cumuli; nimbi; cirro-strati; very fine double rainbow.* die ads 59 adi; id. dS ids eres id.; showers. Id.; id.; cirro-strati. Id.; id. Seud and cirro-strati on horizon. Send ; cirro-stratous scud ; light to NNW. Id. ; id. ; sky rather milky. Scud ; cirro-stratous scud ; sky rather milky. fds id. ; rain? cirri. cirro-strati ; cirri, id. ; id. id. ; id. ; id. ; loose cumuli. id. ; id. ; cumuli; nimbi; cirri; 04 10", rain! loose cumuli; cumuli; woolly cirri. ides woolly cirri. id. eumuli; cumulo-strati; cirri. id. ; id. ; id. on © O000 OCOO000 ~ eer earelee a - an s aoRwW NF COONAN WNHR OS a Fook re rg eerste ec 9 a SdHRSooS WARUK OHA Row 5 OT DNF NNER ee ee ee LO) hay 1 Se oe ww AH OMIA HUH Nh WOwWNMUMNSSCHWOKROHDOGH OF SGHG 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. ©OO O00 O Cirrous clouds and haze. Cirro-strati. Id. Id. 24:—: - Seud ; cirri and cirrous haze. 24:—: Id.; thick cirro-strati and haze. 24:25: . Id.; nearly homogeneous cirro-strati and cirri. Ba a5: Ei Ids id. 23:—: : Td? ; id. 23:—: 5 Id.; cirrous mass. 23 :—: 10-0 7S id. ; cirro-strati. April 302 214 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 Meteorological Observations. MAG. AND MET. ogs. 1845. 182 Hovurty METEOROLOGICAL OBSERVATIONS, May 3—5, 1845. THERMOMETERS. WIND. | | ee gare ae Species of Clouds and Meteorological Remarks. Js, (10, ie B oO wo Scud. 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. ; id. ; woolly cirri; cirro-strati. Id. ; id. and cirro-strati on horizon. id. id. id. id. cirro-strati. Scud ; id. Sunday—Cumuli; nimbi; and passing showers of { hail and rain. Cirro-strati ; sky rather milky. Id., (2) on E. horizon. Cirro-strati. Cirro-cumuli ; cirro-strati. Cirro-stratous secud ; woolly cirro-strati; cir.-cum. Id. Cirro-cumuli ; cirro-strati. GEE id. Cumuli; cirro-strati. Cirro-stratous scud ; cirro-strati. Seud and loose cumuli. WCHOMWAMNARWOH OF www wAwWShYVdS DW we SP ed Many SoihERCe Cet A ry Re ERR Sa yen Ww Loose cumuli. Id. Id. Cirro-str. scud ; streaks of cirri radiating from NW. 38-3 Ia.; id. 40-3 : : . Overcast. 41-3 1 : b r | B Id. NWWWwWanNNnwNneeo 40-4 ele Sespsteporcnone wae) | | | | {| i 41-7 42.5 42.3 42.1 | 42.3 42.8 || 43-7 | 45-3 | 45-7 | 47-0 | 47-6 || 48.3 [48-4 44.2 | 48.2 | 43-9 Overcast. Id. Id. — Thick seud. = Id. —_ Loose scud ; cirro-stratous scud ; rain’-? _— Smoky scud ; cirro-stratous seud 5 cirri. — Smoky and cumulous scud ; cirro-stratous scud; rain! — 1 Be id. — : Id. ; woolly cirro-cumuli. WWE HE ee Om Se hohe andy oCOFW H Id. ; cir.-str. scud ; cir.-cum. © Cumulous send; cirro-stratous scud. | Id. ; id. Id. ; id. | Seud and loose cumuli. 4 Cumulous seud ; cumuli. {0} Id. ; cirro-stratous scud. 49-2 | 43.4 48-8 | 44.3 147-4 | 43-9 | | | OWOoOwWTAAR ER BIO ~| | woorr~r | ao | | | NBT DON HR NE 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, Se. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. May 44.18, Observations made at 18) 10™, 645 630 617 609 597 586 573 554 545 533 502 492 493 486 467 454 446 29.433 415 414 405 391 386 375 366 359 351 342 332 322 312 298 290 281 282 282 294 301 309 310 313 Hovurty METEOROLOGICAL OBSERVATIONS, May 6—8, 1845. 183 THERMOMETERS. Dry. | Wet. | Diff. 46-4 45-4 44-7 44-6 42-9 40-7 41-2 41-3 42-0 42-2 42-3 43-0 43-4 43-7 44-7 46-0 45-9 46-9 47-3 46-8 44-4 44.0 41-4 40-6 41-7 41-3 40-3 40:3 40-3 40-6 40:3 40-2 39-6 39-4 38-9 38-8 39-0 40-0 41-6 44-2 45-0 45-6 46-0 44.9 48-0 47-1 45:8 46-0 45-4 43-3 42:5 41-0 39-7 38-0 36-7 43.2 42.5 42.4 42.9 42.1 40-2 40-5 40-5 40-9 40-9 41-0 41:3 41-4 41-3 42-3 43-2 43-0 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 Drs is aie lemiralien mBTPOOF OO WD Maximum WInD. force in qh: SetH Orr eL RK ORR ee KhHoeent ShHowHwWoAE : el SUC ae OTT oF wpwmaHeay a 10", From ca PP PIR ONT NOWPRWARMHRWWNHKW KW PNONNNNKWKRWENNNRK COC ONWARW!A anowono® | Clouds, Se. : C.-s.: Ci., moving from ~ Lelie lene Lanne | | | oF cose enero we bo | s | bo wo | | laleel Sky clouded. Axa A | | loon ns | | OO hel o| Species of Clouds and Meteorological Remarks. Cumulous scud ; cirro-stratous scud. Scud. Id. Id, Id.; rain” Id.; rain? Id.; id.; dark. Seud ; rain? ; dark. Id.; id.; id. Id.; id.; id. Id.; cirro-stratous scud ; cirrous mass. Loose scud to E.; dense cirro-sirati over the sky. Loose scud in patches ; cirro-stratous scud. Id. ; id. Scud ; cirro-strati and cirrous haze. Thick scud. Id. Id.; rain Id.; shower”? Id.; rain!—* Id.; rain? Id.; dense mass of cirro-strati above? rain"? Id.; dense cirro-strati and haze; rain?” Id. ; id. ; id. | Cirro-stratous scud; wavy cirro-stratus; cirrous mass. Rain! Scud ; rain dss pads Very dark ; rain? tds id. 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 seud. e Id.; loose cumuli; cirri and cirro-strati. Id. ; id. Td. ; id. 5 cirro-strati; cirrous haze. Id. ; id. ; id. ; id. Id. ; id. ; id. ; id. Td. id. ; haze breaking; solar halo. Id. ; id. 5 cirro-strati ; woolly cirri. =) Id.; woolly cirri. (0) Id. ; loose cumuli; woolly cirri. (2) Id. ; cirro-stratous scud ; woolly and linear cirri. Cirro-statous scud ; woolly and linear cirri. >} Td. ; scud on horizon ; masses of cirri. Tar masses of cirri. Scud and cirro-strati, near horizon radiating from N. Id. 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. 184 Gott. || Baro- Mean || METER Time. | at 32°. Hovurty MrtTEoROLOGICAL OBSERVATIONS, May 8—11, 1845. THERMOMETERS. Dry. | Wet. | Diff. ad. h. in. 813 | 29-317 14 317 15 318 16 321 17 321 18 | 329 19 332 20 331 21 329 22 320 23 316 9°0 314 1 319 2 317 3 312 4 310 5 308 6 327 7 328 8 331 9 329 10 334 1l 331 12 324 13 || 29-323 14 326 15 324 16 327 17 332 18 342 19 352 20 363 21 369 22 375 23 386 10 0 399 1 405 2 415 3 420 4 427 5 434 6 440 7 462 8 483 4) 500 10 527 | 11 533 | 12 538 L114) 29-529 13 || 29-410 14 409 15 411 16 415 17 420 18 435 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, WIND. Clouds, mean, eae ecm force in 14, ) 10", Brom) from lbs. | lbs. | pt. |] pt. pt. pt. || 0—10. 0-0 | 0-0 7-0 0-0 | 0-0 10-0 0-0 | 0-0 9-8 0-1 |0-0 4 9-5 0-1 | 0-0 4)/10:10:—] 8-0 0-0 | 0-0 4 5:10:—] 3-0 0-0 | 0-0 3 || 5:—:—]| 10-0 0-1 | 0-1 4 5:—:—] 10-0 0-8 | 0-2 2 || 6:—:—j] 10.0 0-3 | 0-2 2 |) 4:—:—j 10-0 0-6 |0-1 | 12 |}10: 9:—]| 9-5 0-4 | 1:3 8 || 9:—:—] 98 1-1 {1-1} 10} 9:10:—] 9-8 1-4 {1-1 9} 10:11:—j] 90 1-1 | 1-1 7 |}10:11:—j] 8-5 1-0 | 0-9 9 || 10:—:—}| 9.0 1-2 | 0-5 8 |10:—:—j] 9-9 1-0 | 0-5 8 || 9:—:—|| 10-0 0-6 |0-6 8 | 9:—:—] 9-8 0-7 | 0-2 7 —:10:—} 7-0 0-3 |0-0 2] 7:—:—]) 7-0 0-2 |0-0 2 10-0 0-1 |0-0 10:0 0-0 | 0-0 10-0 0-1 |0-0 4 9-9 0-1 |0-0 10-0 0-1 | 0-0 8 9-5 0-0 | 0-0 7 10-0 0-1 |0-0 7 \|—: 4:—|| 9-9 0-1 | 0-0 3 |) 4: 1:—]| 9-8 0-1 |0-0 4]|—: 6:—] 9-9 0-2 | 0-0 4 |}/—: 4:—]| 9-5 0-2 | 0-1 7 || 6: 8:—]| 6-5 0-3 | 0-2 6] 7:—:—|| 98 0-4 | 0-4 4 10-0 0-5 |0-5 7 || 6:—:—|| 10-0 0-6 |0-6 5 || 6:—:—] 10-0 0-7 |0-3 5 || 4:—:— || 10-0 0-6 | 0-3 6 10:0 0-5 | 0-3 4 4:—:—| 9-5 0-4 | 0-3 5 || 4:—:—]]) 9-5 0:3 |0:3 4] 4:—:—] 8-5 0-2 \0-2 3 2:—:—| 7-0 0-2 | 0-1 3 1-5 0-1 |0-1 2 1-0 0-1 |0-1 2 9-8 0-3 | 0-1 3 9-9 0-1 |0-0 | 30 10-0 0-5 |0-1 | 20 || —:24:— 1-9 |0-8 | 21 | 1:5 0-7 |0-1 | 23 8-0 0-6 |0-2 | 21 2-0 0-4 |0-2 | 22 2-0 0-5 | 0-2 | 22 2-0 0-5 | 0-5 | 24 0-8 motion of the three strata of clouds, Sc. (scud), C. Species of Clouds and Meteorological Remarks. Scud and cirro-strati. Overcast ; drops of rain. Thick scud and cirro-strati. Id. Id. { Thin misty seud ; cirro-strati; cirro-cumulo-strati. ©] Id. Td. ; rain! Id. ; cirro-strati ; rain”? Id. ; id. Thin seud ; cirro-cumulo-strati; cirro-strati; cirri. Seud ; id. Id. ; loose cumuli; cirro-strati. | dts Baty id. ; cirri. OQ) Id. ; id. ; id. ; id.; cumuli. 6} Thin seud ; loose cumuli; cirro-strati; cirri. Seud ; cirro-strati; rain? Id. ; loose cumuli; cirro-strati; shower lately. rays id. ; id. Cir.-cum-str. ; oben cum.; cir.-str. and cum,-str. to E, O} Seud ; cirro- Estenti§ cirro-cumulo-strati. ) Tooke: misty scud ; cirro-strati; shower”? Seud; rain?? Id. Seud. Td); rain’? Id. ; cirro-strati. Id. ; id. Dense mass of cirro-strati. Cirro-stratous scud ; cirro-cumuli; cirro-strati. | Cirro-cumulo-strati ; loose cumuli to E. | Id. ; seud and cumuli on horizon. Seud ; loose cumuli. C Id. ; ad, cir.-str. scud ;_ cirro-cum.-str. Id. ; id. ; id. Id.; thick cirro-stratous scud and cirro-strati. Id. ; id. Id.; loose cumuli; dense cirro-strati. Td. ; nos id. and cir.-cum.str, Td. ; id. ; id. ; id. Id. ; id.'5 id. ; id. Ud id. ; id. ; id. Id. ; id. ; cirro-strati. Cumuli; cirro-strati; cirrous haze on hen ame tretile ; haze on horizon. Scud ; cirro-cumuli, 4 Thick seud and cirro-strati. Id. Sunday—a. m. Cumuli and cumulo-strati; cirri a \ thick cirro-strati at 7. Cirro-strati to N. and W.; very faint auroral light. 4 Seud ; cirro-strati on horizon; lightish to N. Pl Seud ‘and cirro-strati on horizon. Cirro-stratous scud and cirro-strati on E. horizon. i Id. ay Masses of cirro-strati and scud ; cumulo-strati to NE. fo) 8. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Hovurty METEOROLOGICAL OBSERVATIONS, May 11—14, 1845. 185 THERMOMETERS. WIinp. linia, LIN iueparnn Se.:.-s.: Ci.) Sky ie er Dry. | Wet. | Diff. Fa in {From se clouded. Species of Clouds and Meteorological Remarks. 14, | 102. ' in. 2 2 2 lbs. | Ibs pt. pt. pte pt. 0—10. 119 || 29-450 || 45-9 | 42-67|3-3 || 0-6 |0-3 | 24 |, —:—:20} 0-8 || Woolly cirri; cirro-strati; cumulo-strati. D) 444 || 48-0 | 43-6 | 4-4 || 0-8 | 0-7 | 26 || 28:—:20)| 4-0 || Patches of seud ; cirri; cirro-strati; cumulo-strati. © 448 || 50-0 44.3] 5-7 || 1-0 | 1-0 | 28 || 30:—:— 5-0 Id. ; id. ; id. ; id. oO 455 || 52-0 |45-3 | 6-7 || 1-3 +1-7 | 30 || 30:—:—) 6-0 || Send and loose cumuli; cirri; cirro-strati; cum.-str. © 480 || 52-2 | 46-0 | 6-2 || 1-3 | 0-6 | 30 || 30:—:— 8-5 || As before. (=) 493 || 53-4 | 46-0 | 7-4 || 1-7 |0-8 | 30 | 30:—-:—|| 7-5 Id. >) 495 || 54-4 | 47-0 | 7-4 | 1-3 | 1-1 | 30 |) 29:—:— 5:5 Id. © 506 || 56-0 | 48-0 | 8-0 || 1-7 |0-8 | 31 || 29:—:—j 9-0 Id.; cumulo-strati to §. ; electric-looking. (0) 554 || 47-2 |45-9 | 1-3 | 2-6 |0-7 | 0 ||30:—:—|| 9-0 || Seud; cum. ; cum.-str. ; cir.-str. ; cirrous mass ; showers.* 568 || 50-2 | 46-4 | 3-8 || 2-2 | 3-1 0 |30:—:—| 9-8 Id. ; cumulo-strati; cirro-strati; rain* 574 || 50-7 | 46-6 | 4-1 | 2-1 |0-2 | 30 || 30:—:— 6-0 Id. ; id. ; id. 586 || 54-3 | 49-6 |4-7 || 0-2 |0-1 | 30 5-5 Id. ; watery cirro-strati; cumulo-strati; drops of rain. 612 || 46-1 | 45-77) 0-4 || 1-3 |0-1 0 || 31:—:—|| 6-5 || Scud and nimbito S.; cum.-str. to N. and E.; cir.-str.* 643 || 48-0 bad 2-0 || 0-2 | 0-2 | 29 || 31:—:—} 8-5 || Thick seud and cirro-strati; rain”? 659 || 47-6 |44-4 |3-2 10-5 0-5 | 31 || —:29:—|| 9-5 || Cirvo-stratous seud. 689 || 46-8 | 44.8 | 2-0 || 0-7 |0-6 0 9-8 Id. 707 || 45-4 | 43-5 | 1-9 | 0-5 |0-2 | 30 9-8 Id. ' 719 || 45-2 | 43-8 | 1-4 || 0-1 |0-1 | 28 9-0 Id. a 29-736 || 42-9 | 41-4 | 1-5 | 0-1 |0-2 | 28 1-5 || Cirro-stratous scud. 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 Td’ id. 812 || 41-7 | 39-2t| 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 Gh id. 845 || 46-4 | 42-4 | 4-0 || 0-9 |0-5 | 29 || —:28:28|) 7-0 || Loose woolly cirro-strati and cirri. s) 865 || 48-9 | 44-0 |4-9 || 1-3 |0-5 | 29 || —:—:28]) 6-5 || Woolly cirri and cirro-strati ; patches of cumuli. (0) 890 || 49-8 | 44.74) 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 30 :—:— 9-0 Td. 942 || 52-6 | 45-6 | 7-0 || 2-0 | 0-7 0 ||\30:—:—|| 9-7 isk thick cirro-stratous scud. 959 || 52-9 | 47-1 | 5-8 || 1-6 | 0-6 3 || 31:—:— 9.9 Tee id. 975 || 52-5 |47-5 | 5-0 || 1-3 | 0-6 3] O:—:—] 9-9 Id. ; cirro-cumulo-strati. 29-986 || 53-7 | 48-3 | 5-4 0-7 |0-8 | 3 || 0:—:—|} 9-0 Id. ; id. (2) 30-002 || 54-1 | 48-9 | 5-2 || 1-0 |0-8 3 O:—:— 8-5 Tat; id. [s) 014 || 53-3 | 47-7 | 5-6 || 1-2 |0.8 3 2: 0:— 5-0 Id. ; id. (0) 028 || 51-8 |46-5f/5-3 |/0-:8 |0-7 | 3 || 3:—:—] 25 Id. ; cirro-strati; cirri. 0) 055 || 50-0 | 44-9 | 5-1 || 0-6 | 0-4 2 2-0 || Loose seud; cumuli on horizon ; woolly cirri. (0) 078 || 47-8 | 43-8 | 4-0 || 0-3 | 0-1 2 2-0 || Patches of scud; cirro-strati ; id. (0) 100 || 44-0 | 42.3) 1 0-1 /0-1| 3 2-0 || Cumuli; cirro-strati; woolly and linear cirri. y 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. : »)) 131 || 36-8 | 36-7 |0-1 | 0-0 | 0-0 0-2 Id. 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 Id. 160 || 36-6 |36-2 | 0-4 10-1 |0-0 | 20 1-5 Id. [parhelia. © 161 || 42-3 | 40-3 | 2-0 || 0-0 | 0-0 —:—:31]) 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. (0) 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 | 26 || 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! 138 || 50-3 | 47-4 | 2-9 || 0-4 10-3 | 24 10-0 Tdh: id. ; : id. s of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 124 3%, Two claps of thunder heard. 6 45™, Shower®, with bright double rainbow. 6" 50™—7h 0m, Two peals of thunder to SW. oose nimbi, spreading out in some places into masses of watery cirro-stratus ; slate-blue homogeneous clouds to SSW. e additional Meteorological Notes after the Hourly Meteorological Observations. MAG, AND MET. ozs. 1845. Ba 186 | THERMOMETERS. | WIND. | Giouds Gott. || Bano- = alleges | So CaP Mean || METER Maximum ’ Time. | at 32°. | Dry. | wet. | Dist. | force in |rrom|) ™yyns 15, )10m, a, Be in. ‘s Ye : Ibs. lbs. pt. || pt. pt. pt 14 3 |30-126 |51-6 | 49-2 |2-4 10.3 |O-1 | 24 || 24:—:— 4 117 | 51-3 |48-7 | 2-6 | 0-7 |0-2 | 24 | 24:—:— 5 098 | 51-0 | 48-7 |2-3 0-3 |0-2 | 20 | 24:—:— 6 085 |51-0 | 49-6 | 1-4 | 0-3 |0-3 | 19 || 24:—:— 7 081 | 50-8 | 48-8 |2-0 | 0-3 |0-3 | 22 || 24:—:— 8 082 | 50-2 | 48-3 |1-9 | 0-7 |0-2 | 23 | 25:—:— 9} 083 | 49-6 | 48-3 | 1-3 ] 0.4 |0-1 | 20 | 25:—:— 10 082 | 49-2 | 48-2 |1-0 ]0-1 |0-0 | 20 | 25:31:— ll 079 | 46-9 | 46-4 |0-5 |0-0 |0-0 | 20 || 27:—:— 12| 077 |45-7 | 45-4 | 0-3 ||0-0 |0-0 | 24 13 |30-078 | 46-0 |45-6 |0-4 }0.1 |0-0 | 24 14| 081 |46-9 | 46-4 |0-5 |]}0-1 | 0-0 | 24 15 079 | 46-8 | 46-4 |0-4 |0.0 |0-0 | 6 16 074 | 44-6 |44-4 |0-2 |0.0 |0-0 | 16 || 29: —:— 17 082 | 43-0 | 43-0 |0-0 | 0-0 | 0-0 | 20 | 30: 0: 0 18 089 | 45-8 145-6 |0-2 10-0 | 0-0 | 24 || —:31:— 19 092 ||49-1 |48-3 |0-8 0-0 |0-0 | 16 ]}—: 0:— 20| 094 ||52-4 |51-0 | 1-4 ||0-0 | 0-0 EQ 21) 099 |55-8 |54-0 | 2-8 0.1 | 0-0 | 15 22) 097 | 58-0 |55-2 |2-8 0-1 |0-2| 2 23 082 | 62-0 |57-3 |4-7 | 0-3 |0-3 | 27 || —:31:— 15 0] O81 |}62-6 |56-8 | 5-8 | 0-6 |0-7 | 29 | 31: —:— l 082 || 63-0 |57-3 |5-7 {10-8 |0-7 | 30 || 31:—:— 2 078 | 65-3 |58-3 |7-0 |0.9 | 1-1 | 30 |}31:—:— 3 074 | 65-4 [58-4 |7-0 }0-9 |0-5 | 31 ||) 31:—:— 4 066 | 67-2 159-7 |7-5 0-5 |0-6 | 2 ||30:—:— 5| 067 |64-4 |58-1 |6-3 0-6 |05 | 4 |/29:31:— 6 084 ||58-0 |54-74/3-3 ]0-9 |0-4 | 5 || —:30: — 7\| 102 ||55-0 | 52-7 |2-3 10.5 [0-3 | 6 || 4:30:— 8|| 109 ||53-7 |52-0 | 1-7 ||0-3 |0-2 | 4] 4:30:— 9) 111 52-7 151-34) 1-4 | 0-2 | 0-1 h esis 10), 111 |} 52-5 | 51-3 | 1-2 } 0-1 | 0-0 11] 113 52-3 151-2 |1-1 0-0 | 0.0 12/112 | 52-1 | 51-1 | 1-0 10.0 | 0.0 | 20 13 30-112 | 52-0 |51-2 |0-8 |0-0 | 0-0 14) 107 | 52-0 |50-9 | 1-1 || 0-0 |0-0 | 20 15) 102 | 50-7 | 49-2 | 1-5 0-2 | 0-1 | 21 16) 102 || 48-9 | 47-9 | 1-0 || 0-2 |0-1 | 22 17| 098 || 48-3 | 47-0 | 1-3 | 0-2 |0.2 | 23 18|| 102 | 48-8 | 47-44) 1-4 ||0-3 }0-2 | 23 | _:—: 0 19|| 103 || 51-3 | 48-7 |2.6 0-3 |0-3 | 24 || —:31:— 20), 098 | 52-1 |49-0 |3-1 ||0-5 | 0-4 | 24 || —: 30: 30 21) 105 | 55-9 | 51-8}}4-1 }}0-3 |0-3 | 26 || —:30:— 22 084 | 57-3 |52-8 |4-5 10-3 | 0-4 | 26 | 28: 30:30 23), 081 | 60-1 |55-1 | 5-0 |] 0-4 |0-3 | 26 || 25:28: — 16 0) 057 || 62-6 | 56-0 | 6-6 0-7 |0-5 | 26 || 26:—:— 1|)| 044 || 64-0 |56-5 |7-5 ||0-6 |0-5 | 28 || 26:29:— 2| 025 || 65-0 | 58-0 |7-0 |}1-2 |0-4 | 26 || 26: 29: — 3], 014 64-8 | 57-7 |7-1 || 1-2 | 1-4 | 28 | 29: 29:— 4 | 30-005 || 64-9 | 57-8 |7-1 1-0 |0-5 | 29 | 28:—:— 5 | 29-995 || 63-2 | 55-8 |7-4 || 1-1 |0-8 | 27 || 28: —:— 6) 993 || 60-3 | 54-14] 6-2 |} 1-1 [0-7 | 26 | 27:—:— 7 992 | 56-0 |51-9 }4-1 |10-7 | 1-3 | 28 | —:30:— 8|| 989 ||53-8 | 50-3 |3-5 |] 1-0 | 0-7 | 28 || —: 0:— 9 997 || 52-0 | 47-8}) 4.2 |10-7 |0-1 | 24 10 | 980 |50-8 47-6 |3-2 10-6 10-3 | 24 || Hovurty METEOROLOGICAL OBSERVATIONS, May 14—16, 1845. Species of Clouds and Meteorological Remarks. Loose scud ; dense cirrous mass; rain! a Id. ; id. ; id. Send ; id. ; rain!” Id.; rain! Id. ; mass of cirro-strati. dis id. Id. 5 id. | Id.; cirro-stratous scud. Id., moving quickly; cir.-str. on hor.; faintlun, cor. )} Masses of scud and cirro-strati. Dd} Cirro-stratous seud. Id. Scud; loose cum. ; cirro-strati; cirri; cirrous haze. Id.; cirri; cirro-strati. Id. to E.; woolly cir.; cir.-cum. ; cir,-str, ; mist on the ground, Cirro-stratous seud ; loose scud to E. Cir.-cum. scud ; amdainted cir.-str. and cirro- eumuli, Sheets of cirro-stratus, Id. Loose scud ; cirro-strati ; cirrous mass. Cirro-stratous scud ; cirro-strati; cirrous mass, Patches of scud ; sheets of cirro-stratus. Loose cum. ; cum.-str, ; cir.-cum.-str. ; cirri. Id. ; id.; woolly and mottled cirri. Id.; id. ; id. Id. ; id. Id.; id.; _cirro-stratous scud ; cirri. Cirro-stratous seud ; cirro-cumulo-strati. Seud ; cirro-stratous scud. Tay; id. Id.; cirro-stratous seud ; cir.-cum.-str. ; cirri. Cirro-stratous scud, nearly homogeneous. As before. Id. As before. Id. nearly homogeneous. Scud ; cirro-stratous scud ; cirro-strati. ikils8 id. ; id. ; cirri. Cum.-str. to W.; bank of cirro-stratus to S. ; cirri. Woolly cir. ; cirro-strati; cumuli ; cumulo-strati. Varieties of cirro-strati ; cum.-str. to NW.; loose cum. to SE. Woolly cir. and cir.-str. ; cir.-cum. ; small cum.-str.; cum, to SW. € Loose cir.-str. or cir.-cum.-str., mixed with cum, ; cir. haze. Patches of cum. ; woolly cirri ; cir.-str. ; cir.-cumuli. Id.; cirro-cumulo-strati ; cirro-strati. Loose cumuli; cirro-stratous scud ; cirro-strati. Id. ; cirro-strati. GIS id., becoming more homgeneot | Id. ; id.; _cir.-cum.-str. ; woolly cir. | 1G OF id.; cirri; cirrous ‘hilaps | Ids cumulo-strati ; cirrous haze; halo. | Id.; id. ; cirro-strati ; woolly cir. C = | Cirro-stratous scud ; cirro-strati ; woolly cirri. | Cirro-cumulo-strati ; id.; id. | Cirro-stratous scud and distian mass ; small corona, | Cirro-strati; woolly cirri; cirrous haze; lunar cor. 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. Th .-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, May 16—19, 1845. 187 THERMOMETERS. | WIND. oe S| Clouds, Maximum Se. :C.-s.: Ci.,|| Sky force i moving _|clouded. Dry. | Wet. ree 1 ae Species of Clouds and Meteorological Remarks. ° ° < pt. pt. 51-3 | 48-0 | 3- . . F Cirro-stratous scud; cirro-strati; cirrous haze. 51-0 | 48-1 | 2- : . 5 Id.; id. ; id. 51-0 | 48-7 | 2. : : ae id. 51-2 | 49-1 . . . Bi ahs id. 51-6 | 49-3 | 2. : - “ e id.; drops of rain lately. 51-5 | 49-3 | 2- : 5 228: | a id. 51-7 | 49-4 | 2. . : H : is id. 51-8 : zi : . “| Seud; cir.-str.seud; dense cir.-str.; slight shower 46:7 Id. ; id.; rain! [lately. 47-5 Id.; cirrous mass. 50-6 Loose cumulous scud; fleecy cirro-cumuli ; cirri. 51-4 Teh id. ; i 53-4 Woolly cirro-cumulo-strati ; cirro-strati ; 53-8 Loose cumulous scud ; cirro-cumulo-strati ; 54-0 Id. ; 1d. 54-8 Id. ; id.; cum.; i 54-8 tay: BG | IS Id. ; cirro-strati ; cirri. Loose cumuli ; id. ; id. Cirro-stratous scud ; cirri. Cirro-cumulo-strati ; cirri, radiating from NW. Id. Id. ; cirri; cirrous haze. Id. ; id.; id. Cirro-strati ; cirri. Id., id. Sunday—Thick scud ; a continued succession of ligh’ { showers throughout the day. Scud ; cirro-strati. Tae; id. Id. ; id. Id. and cirro-cumulo-strati. Id.; cirro-strati; drops of rain. Cir.-cum.-str.; wool.cir. radiating from NNW. ; cir.-str. Scud ; cirro-stratous seud ; cirro-strati and cirri. Id.; loose cumuli; cirri to N. Id. ; id. ; cir.-cum.-str. ; cirri; cir. haze. Id. ; id. ; cir.-str. ; thick cir.-cum.-strati. Id. ; id. ; id. ; id. Id. ; id. 5 id. ; id, Id. ; id. ; cirro-strati. (s) Id. ; id. 5 id. Ide; id. ; cirro-cumulo-strati. eS Loose cumuli; cirro-cumulo-strati. e Id. ; thick cirro-strati. Seud ; id. Tas; id. Id. ; id. Id.; id. ; drops of rain. Id. ; id. ; rain”’> Id. Id. Scud and loose cumuli. Scud and cirro-stratous scud ? Id. Id. fea ee a SOM wmrnw. weowne- ow Soo Oo o2 Sr s ROADHOOMNATN SoOnx~lc SCORNNHENNE EE wWwWNNNNS Ye~yvO0O0000080000 = for] w So + wo i) wy 681 682 680 691 684 688 688 695 692 689 689 690 689 692 700 708 719 722 731 745 751 761 760 || 44-4 ‘|| 29-757 || 44-1 - 762 || 43-7 763 | 43-3 765 |\43-4 ww o w So coocoeol - Oo Sr Orr HEH NK ONE HS BD DON Be woe © OO NNN N RK eee i) WNWWW OWE DYDNKRPNNNORF ON WERE pW KW WP Se to to oe — WwW = 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 tions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. yy 182194. Observation made at 19% 8m, ly 184 21". Observation made at 21 5m, 188 Hovrty METEOROLOGICAL OBSERVATIONS, May 19—22, 1845. THERMOMETERS. WIND. Gott. || Baro- Clouds, Mean | METER Maximum Se.: Ore. :Ci., 1 aky. a Species of Clouds and Meteorological Remarks. Time. | at 32°. || Dry. | Wet. | Diff.) force in |Prom eee clouded. 1», 10m, a. h. | in. ¢ i > lbs lbs. | pt. pt. pt. pt. 0—10. 19 17 || 29-769 || 42-2 | 41-0 | 1-2 ||0-1 |0-0 =i s2— 8-2 || Cirro-stratous scud. 18 778 || 44-1 | 42-6 | 1-5 }0-1 |0-0 | 31] 2: 1:—|| 9.5 Id.; cirro-cumulo-strati. 19 790 || 45-2 | 43-3 |1-9 | 0-1 |0-3 | 0 ]|—: 2:—|) 10-0 Td. 20 778 || 46-2 | 43-8 |2-4 |\0.2 |0-1 | 1||—: 2:—]) 10-0 Td. 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 |3-5 | 0-7 |0-7 | 2 || 2:—:—| 10-0 Tad. 23 770 || 49-2 | 46-4 |2-8 | 0-5 |0-2 |} O |—: 1:—|} 10-0 || Cirro-stratous scud ; cirrous mass. 20 0 761 || 48-7 | 45-0 |3-7 |0-5 |0-3 | 2]|—: 0:—|| 9.9° Id. ; id. 1|| 747 || 50-7 | 46-2 |4-5 | 0-7 |0-4) 2] 0: 1:—|| 9-9 Ia. ; cirro-cumulo-strati. 2!) 738 | 51-0 | 46-4 |4-6 |0-9 |0-7]} 1] 0: 1:—]) 9-9 Tite id. 3 732 || 51-0 | 47-2 |3-8 | 1-1 |0-6 1 | 0: 2:—|| 9-0 || Loose cumuli; cirro-cumulo-strati; cirri. 4 723 || 52-2 |47-3 |4-9 | 1-0 |0-6 | 5 31:30:—|| 9.0 Td. ; 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 ||49-4 145-1 |4-3 111-0 |0-9 2] 2:31:—l} 9-8 Id.; loose cumuli; cir.-str. seud ; cir.-str. ; cir, 7 715 ||47-8 | 45-4 |2-4 10-7 10-5 | 2] 2:31:—| 9-5 | Id.; id. ; id.; id. 8 708 |46-6 | 43-8 |2-8 || 1-4 | 0.4 2 || 3:30:—|} 5.0 | Id.; cirro-cumulo-strati; mottled cirri. 9 718 {46-3 | 44-2 |2-1 0-7 |0-3 | 3] 3:31:—]| 9.8 || Id; id. ; cirro-strati ; cirri. 10 717 || 44-7 |43-0 | 1-7 |0-3 |0-2 | 1 3:—:—] 25 | Id. 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 ]0-6 |0-5 | 2 10-0 Id. 13 || 29-699 || 44-7 | 42-8 |1-9 ||0-7 |0.5 | 2 10-0 || Thick seud. 14 700 || 44-7 | 42.4 |2.3 / 1-0 |0-4] 3 10-0 Id. 15|| 698 | 44-2 | 42.3 |1-9 |0.9|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 1-0 |0-5 | 3 || 3:—:—]] 10-0 Id. 18 703 | 43-7 | 42-1 |1-6 1-1 )1-0] 4 | 2:—:—|| 10.0 Id. 19} 714 | 44-9 |43.2 |1-7 | 0-8 |0-7 | 4 | 3:—:—|] 10.0 Id. 20, 716 || 45-0 | 43-1 |1-9 | 0-7 |0-4 | 3 || 2:—:—]) 10.0 Td. 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. 23 708 || 49-6 | 46-7 | 2-9 | 0-8 | 0-8 2 || 2:—+:—}| 8.5 || Scud and loose eumuli; cirri. 21 0|| 706 |/51-0 | 47-7 |3-3 | 1-1 |1-1| 2] 2:—:—|) 9.0 Id. ; tufts of cirri. ( 1) 695 | 52-3 | 48-3 |4.0 1-3 |0-9] 2 || 2:—:—]] 9.0 Id. ; cirri. 2 | 691 | 53-0 | 48-7 |4-3 11-0 | 0-8 3 Dy Oise 9.9 || Seud, in two currents. 3) 683 | 51-5 | 47-5 |4-0 | 1-1 |0-9 | 4 || 2: 0:—|| 9-5 Id. 4/| 667 | 54-0 | 49-1 |4-9 || 1-0 | 1-0 3 2:—:—|| 9.5 || Seud; cirrous haze; solar halo. { 5 659 || 52-9 | 48.4 |4-5 11-4 ]1-3 | 2 || 2:—:—l| 9.9 || Id.; id., thicker, ; halo disappearing. 6 661 || 50-8 |47-7 |3-1 1-7 | 1-5 3 i 9.3 Id.; thick cirri; cirro-strati and cirrous haze. 7 663 || 49-6 | 47-0 |2-6 || 1-4 10-6 2 eens at} 9.9 Id.; woolly cirri; cirro-strati; cirrous haze. 8 670 || 48-1 | 46-0 |2-1 || 1-3 | 1-2 3 > Nee yee | Oe hh 5 Id.; cirri and cirrous haze. 9|| 675 || 46-7 | 44.6 |2-1 2-1 |1-2 | 3 | 2:—:—|) 10.0 || Id. f 10|| 683 || 46-0 |44.2 |1-8 1.2 }1-.2 | 2 10-0 |) Id. 11| 695 || 45-5 | 44.0 |1-5 |/2-0 | 1-3 4 10:0 Id. ; cirro-strati. 12 694 || 45-0 |43-8 |1-2 ]1.3 |0-6 | 4 10-0 || Id.; id. 13 || 29-690 || 44-9 | 43-2 11-7 111-2 | 0.9 2 10-0 || Scud. ; cirro-strati. 14 688 | 44-4 | 43-2 | 1-2 | 1-2 10-4 2 10:0 IGA id. ; drops of rain. 15 682 || 44-3 | 42-7 |1-6 11-7 |1-6| 2 10-0 || Id.; id. ; id. 16) 683 | 44-2 | 42-6 | 1-6 ||2-0 |1-4 | 2 || 2:—:—] 100 } Ia.; id 17) 697 | 44-2 |42.4 |1-8 1-2 |0-6 | 2 || 2:—:—]] 100 |] Ia.; id. 18|| 697 | 44-5 | 42-4 |2-1 | 1.2/0.8] 3 | 2:—:—| 10.0 |) Id.; id. 19 700 |\ 44-3 |42-9 |1-4 ] 1-5 | 0-5 st 2:—:—|| 10-0 || Thick seud and cirro-strati. : 20// 704 45-4 |43-3 }2.1 | 1.2/0.7] 3 || 3:—:—|| 10.0 Id. ‘f 21 | 714 || 46-3 | 44-4 11-9 | 1-3 | 1.2 3 || 4:—:—|| 9-9 || Smoky scud; cirro-cumulo-strati. f 22 714 || 46-7 | 45-6 | 1-1 | 1-7 | 1-2 Ane 4 3)2—-||| 918 Id. ; id; drizzle lately. 23 | 717 |\48-3 | 45-1 |3-2 | 1-5 | 1-3 4 10-0 || Thick seud. é 22 Ol 724 ||48-7 145-7 [3.0 1-5 11.3 | 3‘ 3:—:—ll 10.0 Id. 3 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. Th motions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. H & Hovurty METEOROLOGICAL OBSERVATIONS, May 22—24, 1845. 189 THERMOMETERS. WIND. Clouds, “| Se. : C.-s.:Ci.,|| Sk D Ww Diff yar me) F moving ldoudea, Species of Clouds and Meteorological Remarks. ry. et. iff, ‘rom | as, | 10. ae rg > ie 5 5 .. pt . . 45-0 | 2- . - 3:—: H Thick scud. 46:3 Id. 47-8 Send ; cir.-cum.-str. ; cir.-str. scud; clouds broken. © 46-6 Id.; cirro-stratous scud. (s) 46-2 Id. ; id. 8 46-0 Id. ; id. 44-4 Id. ; id. 43-5 Id. id. 42-8 Id. id. 42.3 Td. id. 42-5 Id. 42-5 Id.; slight spit of rain. 42-3 Seud. 42.3 Id. ; 42.2 Td; 42-6 Td. ; 42-4 Id. ; 42-6 42-8 43-0 44.7 45-8 46-7 fine rain? ; dense cirro-strati. id. id. id. id. id. id, 4 ; light drizzle. : id, Id. ; cirro-stratous scud. Thick cirro-stratous scud. Nearly uniform mass of scud. Td. dd. Td. Id. Id. Id. Id. Td. Id. Id. Td. Td. Id. 44.3 46-0 46-3 47-5 48-0 48.3 48-4 46-3 46-2 45-4 45:3 | 44-0 44-3 | 43-1 WWKhORE ER WAWKERWWKRON KWH WERE wWHWwRwWRPUNNKRRWWWWWWWWWW WWKhWW RROD BW CD Sa a el ee Hobe RHESDHHONSONHERAD 1 e direction of the wind is indicated by the number of the point of the compass, reckoning N.— 0, HE. = 8, 8. = 16, W. = 24. The 8 of the three strata of clouds, Sc. (scud), O.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 22418), Observations made at 18 10™, , AND MET. oBs. 1845, a h. in. 24 9 | 29-769 10 764 11 764 12 | 759 231) 29-703 25 13 || 29-656 14 | 655 15 | 630 16 | 628 17) 616 18 || 597 19 | 600 20 590 21 596 22 || 602 23 592 26 0|| 572 1 || 565 2 547 3 541 4]| 541 5 537 6 || 531 7 || 533 g || 532 9 536 10 551 11 || 562 12 584 13 || 29-592 14 598 15 622 16 635 17 648 18 667 19 690 20 709 21 || 727 22 752 23 766 27 0|| 788 I 800 2 819 3) 828 4 834 5 | 847 6 852 7 865 8 || 879 9 || 887 10 | 896 11 | 913 12 || 915 13 | 29-922 14 925 Hourty METEOROLOGICAL OBSERVATIONS, May 24—27, 1845. THERMOMETERS. WIND. 46-7 47-0 46:8 46-8 47-7 47-2 47-3 46-7 46-4 45-6 45:0 44-0 44-2 43-9 43-5 43-2 43-1 Wet. 42-2 41-4 41-7 41-2 KOePeKROOOHrHO NAWOKkWA DIN DF oO a i=) wow Ce RP BP NON EF NE NE NE eee eS DEAR OOCHMHOIWNINMONW HK WW eee wy oa HUmHASS ° ab S ew a_i 2.2 | 0-9 | 0-5 Maximum Diff. force in 1h, 10™, SCOPRP RPE eer OFrPrFOOoOrrTSOSOSOS STOR NNT RK WWHONINDHORDENADH ww PRBRBRARKRERKE KEKE ROR UPONAHWHE BRP WWWWWNNWKRhWNWWKhWNNNWNRD DD WHNwwFr Clouds, Se.: C.-s.:Ci., moving from | pt. pt. pt. wwwwwwow | | PROBE PRAT AN asT | w | | pe Species of Clouds and Meteorological Remarks. 0-10. y 10-0 || Nearly uniform mass of seud; light drizzle. 10-0 Id. 10-0 Tas; light drizzle. 10-0 Id. 10-0 || Sunday—Nearly uniform mass of seud. 10-0 || Nearly uniform mass of seud. 10-0 10:0 || Send ; slight drizzle. 10:0 | Id. 10-0 || Misty send; fine rain”? 10-0 Id.; cirro-stratous scud ; clouds breaking. 10-0 Id. ; id. 10-0 10-0 || Dense clouds, chiefly misty seud ; light drizzle. 10-0 Id. 10-0 Id. ; rain? 10-0 || Dense clouds. 10-0 Id. ; rain!? 10-0 Tass rain? 10-0 Id. ; rain® 10-0 ids; rain! 10-0 Id. ; rain” 10-0 || Dense scud; rain® 10-0 Id. ; raint 10-0 || Scotch mist, objects invisible at 1 mile ; rain? ? 10-0 Id.; rain” 10-0 Id.; rain! 10-0 Id.; rain”? 10-0 Id. ; id. 10-0 || Scotch mist; rain” 10-0 Id. ; id. 10-0 Id. ; id. 10-0 Id. 10-0 || Misty seud; dense mass of clouds. 10-0 || As before; rain? 10-0 Id. ; id. 10-0 Id.; _ rain”5 q 10-0 Id.; rain”? 10-0 || Misty seud ; Scotch mist. 10-0 Id. ; id. ; rain?” 10-0 Id ; clouds breaking. 10-0 Id. ; id. 10-0 || Seud; id. 10-0 || Id.; id. 10-0 Id. ; id. 10-0 Id. 10-0 | Id.; clouds breaking. 10-0 Id. 10-0 Id. 10-0 || Id. 10.0 || Id. 10-0 || Id. 10-0 || Ia. 10-0 | Seud. . 5 10-0 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, The | motions of the three strata of clouds, Se. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. hi ~ Hourty METEOROLOGICAL OBSERVATIONS, May 27—29, 1845. 191 THERMOMETERS. WIND. Clouds, as Maximum Se. Cx8.:Ci5j] Sky Species of Clouds and Meteorological Remark: at 32°. || Dry. | wet. [Diet| free in |From| Moving clouded. i, . 7 fi 14,; 10™ in. ° ° e |] ips. | ibs. | pt. |] pt. pte pt |} 0—10. 29.926 || 42-9 | 40-7 |2-2 0-6 |0-5 | 3 10-0 || Scud. 928 || 42-8 | 40-7 |2-1 0-4 |0-3 | 3 10-0 Td. 933 || 42-8 | 40-7 | 2-1 0-7 |0-4) 4 10-0 Id. ; cirro-strati. 935 ||43-4 141-0 | 2-4 ||0-7|0-5 | 4 10-0 || Mass of cirro-stratus. 940 || 44-0 | 41-6 | 2-4 ||06 | 0-3 3 || 4:—:—]| 10-0 || Seud; dense mass of cirro-stratus. 946 || 45-3 | 42-3 |3-0 0-9 |0-7 | 5 || —: 4:—|| 10-0 | Cirro-stratous scud, breaking. 948 || 46-4 | 43-4 |3-0 |1-2 |0-8 | 2 || 4:—:—|| 10-0 || Scud, with other clouds above. 947 || 48-7 | 45-0 |3-7 | 1-0 | 1-1 4 5:—i:— 9-8 Id., id. (s) 941 || 48-4 | 44-9 |3-5 || 1-2 | 1-0 4 10-0 Id., id. 945 || 49-4 145-6 |3-8 || 1-4 | 1-1 4 9-9 || Id.; cirro-strati. 937 ||48-9 | 45-4 |3-5 |1-4|0-9 | 5 ||—: 5:—J|) 8-0 || Cirro-stratous send; patches of cirro-strati. e 927 ||51-6 | 48-1 |3-5 ||1-:0 |0-4 | 5 ||—: 4:—|} 9-0 || Scud.; patches of cirro-strati and cirri. e 920 ||48-7 | 45-1 | 3-6 1-3 |1-0]} 6 ||—: 5:—|]) 4-0 || Id.;_ cirri to SE. (0) 908 || 49-8 |46-1 |3-7 || 1-4 |1-2 | 4 |} —: 5:—|| 7:0 | Id; id. 0) 898 || 48-8 | 45-0 |3-8 | 1-2 |0-9 | 6 ||—: 4:—|| 6-5 || Id.; woolly cirri. (Ss) 888 || 47-7 | 44-3 3-4 1-1 |0-9 | 5 ||—: 5:—]| 8-0 | Id; id. 891 || 46-0 | 43-7 | 2-3 1-0 |0-7 | 4 || —: 5:—]| 10-0 || Id.; cirro-strati. 886 || 45-6 | 42-8 | 2-8 || 1-2 | 0-7 4 9-9 Td. ; id. 891 || 43-4 | 41-71) 1-7 || 1-2 |1-3 |) 3 10-0 || Dense mass of scud and cirro-stratus. 887 || 44-2 | 41-8 | 2-4 ||1-3 |0-2 |) 4 10-0 Id. 886 || 44-0 | 41-6 | 2-4 || 1-1 | 0-5 4 10-0 || Seud ? 880 || 43-9 | 41-1 | 2-8 |} 1-1 |1-0| 4 10-0 Td. 29-873 ||43-5 | 41-0 |2-5 |/0-8 |0-4 | 3 10-0 || Scud 2 858 || 43-3 | 40-9 | 2-4 110-7 |0-9 | 2 10-0 Id. 854 ||42-9 |} 40-3 |}2:6 1-0 |0-7 | 3 10-0 Id. 841 ||43-0 |41-0 |2-0 |}1-1 |0-6 | 2 10-0 Id. $37 || 43-0 | 41-0 | 2-0 || 1.0 | 0-4 2 || 3:—:—|| 10-0 Id. ; cirro-stratous scud. 823 || 43-4 | 41-4 |2-0 0.6 |0-5 | 2 || 3:—:—]| 10-0 Id. ; id. 818 || 43-7 | 41-0 | 2-7 ||0-7 |0-5 | 3 || 4:—:—]| 10-0 Id.; id. 812 ||44-2 | 41-3 | 2-9 |}1-2 |0-7 | 3 || 4:—:—]| 10-0 Id. ; id. 807 || 45-0 | 42-0 | 3-0 |} 1-3 |1-0 | 4 || 5:—:—] 10-0 Id. ; id. 799 ||46-2 | 43-2 |3-0 || 1-4 |0-7 | 3 || 5:—:—]| 10-0 Id.; id 795 ||47-2 | 44-0 | 3-2 || 1-5 | 1-0 3 5:—:—]| 10-0 Id. ; id 788 ||49-1 | 45-4 |3-7 |/1-3 |1-8 |] 3 || 5:—:—]) 9-9 Id. ; id. 785 ||50-0 | 46-2 |3-8 |} 1-3 }1-1 |] 4 || 5:—:—]| 9-9 Id. ; id. 777 ||51-9 | 47-7 | 4-2 || 1-1 |0-9 | 2 |) 5:—:—] 9-9 Td. ; id. 763 || 52-0 | 48-0 |4-0 || 1-0 | 0-8 5 || 4:—:—]] 9-0 Id. ; loose cumuli. e 750 || 51-0 |46-9 |4-1 0-7 |0-4 | 2) 4:—:—|| 9-5 Id.; cirro-strati; loose cumuli. 750 || 50-8 | 47-0 |3-8 ||0-9 |0-6 | 3 |) 4:—:—|]|| 9-5 Td. ; id. ; id. 750 || 49-6 | 46-1f|3-5 || 0-9 | 0-4 3 3: 6:—J]] 6-0 || Cirro-stratous scud; cirro-strati; cirro-cumuli. (0) 750 ||47-8 | 45-2 | 2-6 ||0-7 | 0-6 4 ||—: 3:—|| 10-0 || Dense mass of cirro-stratous scud. 762 ||46-0 | 44-2 |1-8 |}0-8 |0-5 | 4 ||—: 4:—|| 9-8 || Cirro-stratous seud. 773 |\45-4 |44.0 |1-4 10-6 |0-3 | 4 || 4:—:—|| 9-5 || Loose cirro-stratous scud. 782 || 43-7 | 42-7 |1-0 || 0-3 | 0-1 3 || 4:—:—|| 80 Id. 773 ||44-1 |43-2 |0-9 || 0-1 | 0-1 3] 4:—:—|| 95 Id. 781 || 45-4 |44-4 /1-0 /0-4 |0-2 | 3 9-8 Id. 29-784 || 45-3 | 44-6 |0-7 || 0-3 | 0-2 3 9-9 || Loose cirro-stratous seud. LN. and NE. hor. 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 785 || 39-5 | 39-3 |0-2 ||0-0 | 0-0 | 30 1:0 Td. SE.; cir.-str. to NE.; haze on NE. horizon. ) 786 || 36-1 | 36-1 |0-0 |/0-0 | 0-0 | 20 0-8 || Nearly as before ; stratus on the ground, red to NE. 788 || 38-0 | 38-0+|0-0 || 0-0 |0-0 | 20 .|| 0-5 || Scud on SE. horizon; cirro-strati to N. (0) 792 ||40-7 | 40-4 |0-3 ||0-0 |0-0 | 20 || 5:—:—|| 3-5 || Loose misty seud ; id. (0) 803 || 46-0 | 44-8]| 1-2 |0-0 |0-0 | 10 || 4: 4:—]} 9-5 Id. ; cirro-stratous scud. 817 || 48-8 | 46-8 | 2-0 0-3 |0-2 |] 3 || 3: 4:—|| 98 Td. ; id. e 839 || 50-2 |47-7 |}2-5 10-5 |0-5 | 2 || 3: 4:—|) 9-0 Id.; id. e 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, H.=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. y 29464. Cirro-stratous scud becoming cirro-stratus, some portions of it slightly ecymoid : cirro-cumuli and cirro-cumulo-strati. Hovurty MEeTrEeoroLoGicaL OBSERVATIONS, May 29—JuNE 2, 1845. - | THERMOMETERS. Winp. Clouds, SUES || PEABO: A Se.: C8. :Ci.,|| Sky | Mean || METER | Maximum moving Alarratcny Species of Clouds and Meteorological Remarks. 4 Time. | at 32°. || Dry. | Wet. | Diff. force in |Prom peas {| 1h, ,10™. ais | in. a S S Tbs. | Ibs. pt. pt. pt. pt. 0—10. 29 23 || 29-843 | 52-3 | 48-3 | 4-0 | 0-8 0-6} 4] 3: 4:—]} 9-0 |) Seud; loose cumuli. =) 30 0} 847 | 53-7 | 49-2 |4-5 | 0-9 0-6 6 3: 4:—]} 9-5 Id. ; id. ; eumuli ; cirro-strati. ‘s) 1|| 871 53-3 |48-5 |4-8 1-2 |06) 4] 3: 4:—| 95 Id. ; id. ; neh - id. 2) 2 873 || 54-2 | 49-7 |4-5 | 1-0 |0-5 4 3:—:— 9-8 || Loose cirro-stratous scud ; cumuli; cirri. 2) 3 878 || 53-0 | 48-0 | 5-0 | 1-1 | 0-5 4] 2:—:—| 6-0 Id. ; id.; id. ; cirro-strati, 0) all 974 527 146-2 |65 |1-.0 [07] 4] 0:—:—] 7-0 Ia. ; id; id; id, / 5|| 81 50-3 [44-5 [5.8 /0-8 |0-6| 4] 2:—:—|| 90 Id. ; cirro-strati; cum.-str.; cir. 6|| 884 || 50-5 | 45-0 | 5-5 | 0-5 | 0-4 3 ||—:30:—|| 7-5 || Cir-cum.-str.; patches of seud below, and of cir. above. =) 7|| 996 |\49-5 |44-3 |5-2 0-4 |0-2 | 4 || —:30:—|] 7-0 Id. ] 8|| 899 || 48-3 | 43-0 | 5-3 || 0-2 | 0-0 6 || —:30:— 3-0 || Cirro-cumulous scud ; cirro-cumulo-strati. 4 9|| 912 |) 45-4 |41-7 |3-7 0-0 }0-0 | 4 3-0 Iile3 id. 10) 919 || 44-8 | 41-7 | 3-1 || 0-1 | 0-0 4 9-9 || Cirro-stratous scud ; cirro-cumulo-strati. 11|| 924 ||44-9 |42-6 |23 0-1 |0-.0| 8 9-2 Id. ; id. i 12 | 927 || 42-6 |41-3 | 1-3 | 0-0 |0-0 | 23 7-5 Id. ; id. ; | | q 13 || 29-932 || 43-4 | 42-4 |1-0 | 0-1 | 0-0 | 20 10-0 || Cirro-stratous scud ; cirro-cumulo-strati. 14|| 929 | 43-0 | 42-2 |0-8 || 0-0 | 0-0 10-0 Id. ; id. 15| 925 || 42-8 |42-1 |0-7 || 0-0 | 0-0 9.5 Ia. ; id. 16) 917 || 39-4 | 39-4 |0-0 | 0-0 |0-0 3:5 Id. ; id. 17 | 929 | 41-6 |41-0 |0-6 | 0-1 |0-0 | 23 || 2: 0:—|| 9-0 || Seud; loose cumuli; cumuli; cirro-strati ; cirri. 18 | 932 || 43-4 |41-74/ 1-7 || 0-0 |0-0 | 24 | —:—24:] 9.0 || Cirri and cirrous haze; fine cumuli on N. horizon. 19|| 937 || 46-7 |44-3 | 2-4 || 0-0 |0-0 | 20 ||—: 23:—1|| 8-5 || Cirro-cumulo-strati; cum.; cum.-str.; cir.-str.; cir. © 20| 947 || 50-2 |47.0 |3-2 || 0-1 |0-1 | 28 ||31:—:—|} 8-0 || Scud and loose cumuli; cumuli, &c.; as before. 21 940 || 53-7 | 49-01) 4-7 || 0-1 |0-0 | 12 ||30:—:—]] 9-5 || As before; rather electric-looking. 22| 944 |\54-0 |49.3 |4-7 |0-1 |0-0| 8 ||31:—:—|| 9-8 || Loose cumuli; woolly cirri and cirro-strati. | 23|| 942 || 56-1 |50-1 |6-0 ||0-1 |0-0 | 14 || 28:—:—] 8-5 Id. ; cirro-stratous scud ; cirri ; cirro-strati.} 0|| 938 ||57-3 |51-0 |6-3 ||0-2 |0-2 | 12 || 30:—:—1]) 3-5 || Cumuli; loose cirro-strati. (0) 1 928 | 57-0 | 50-5 | 6-5 || 0-3 | 0-2 6 || 29:—:— 5-0 Id. ; id. 0) 2 922 || 58-4 | 51-6 |6-8 || 0-5 | 0-2 5 | 28:—:—|| 8-5 ie id. = 3 917 | 57-8 | 51-2 |6-6 || 0-3 | 0-3 6 || 28:—:— 8-0 Id.; id. | 4 913 || 61-0 |53-7 | 7-3 || 0-2 | 0-1 8 |19:27:—|| 8-8 || Scud; cumuli; cirro-cumulo-strati. 5|| 915 |) 56-8 | 52-8 |4-0 || 0-5 |0-2 | 18 7-5 Id. ; id. ; id. 6|| 903 || 56-4 | 52-4 | 4-0 || 0-4 | 0-2 5-0 dyes id. ; id. 7|| 898 || 55-5 | 50-6) 4-9 |) 0-2 |0-1 | 20 |} —:22:—| 5.0 Cirro-cumulo-strati ; cumuli and cumulo-strati on hor, 8|| 894 || 53-0 | 49-7 | 3-3 | 0-2 |0-1 | 18 }}—:24:—], 40 Id. ; eumulo-strati to N. 9} 899 |) 51-4 48-6]} 2-8 || 0-3 | 0-3 | 17 1-5 || Cirro-stratous scud ; cirro-strati; cirri. 10 889 || 47-9 | 46-0 | 1-9 || 0-6 |0-1 | 17 2.0 || Cirro-strati and haze near horizon. 11|| 897 || 46-4 |44-7 | 1-7 ||} 0-2 |0-1 | 18 1-5 || Cirro-stratous seud and haze near horizon. [from WSW. 12}} 897 45-3 |43-7 | 1-6 ||0-1 |0-0 | 19 2-0 || Cirro-strati and haze to N; faint milky streaks of cirri radiatinj eae é ; : ; ‘ A : Sunday—Seud, cum., and cir.-cum.-str. ; cloudy, wit 1 |) 29-767 58-3 |54-9 /3-4 | 1-5 /0-7 | 19 1/20:—:—| 9:2 { occasional sunshine and showers ; cloctric lode 13 || 29-656 || 53-0 | 52-2 |0-8 || 1-5 |0-8 | 20 10-0 || Overcast ; scud ? 14|| 648 |) 53-2 |52-2 |1-0 |}0-5 |0-2 | 20 10-0 ae id. 15 | 637 || 53-1 |52-0 | 1-1 | 0-2 |0-0 | 22 10-0 dis id. 16|| 622 || 52-9 |52-0 |0-9 || 0-4 |0-1 | 20 10-0 || Nearly homogeneous. 17 617 | 52-6 |51-7 |0-9 | 0.4 |0-5 | 22 || 21:—:—|| 10-0 |) Loose scud; densely clouded. 18 616 || 52-7 |51-9 |0-8 || 0-7 |0-3 | 20 10-0 Id; id. 19 613 || 54-4 |53-0 |1-4 || 0-5 |0-3 | 20 || 21:—:—|| 10-0 Id. ; id. 20 || 613 || 55-6 |53-5 | 2-1 || 0-6 |0-8 | 19 || 21: 22:—|| 10.0 Eds! cirro-cumulo-strati. 21|| 604 || 58-3 | 55-4 | 2-9 | 1-0 |0-9 | 20 || 21: 22:— 9-5 Id. ; id. 22 || 584 || 59-5 | 55-2 | 4-3 11-3 |0-8 | 19 || 22:23 :— 9-5 Td. ; id. ; cirri. 23 || 575 || 60-8 | 55-2 | 5-6 || 2-4 |1-2 | 18 || 22:23 :— 9-8 Id. ; id. ; id. ( 2 0} 564 || 60-8 | 55-6 | 5-2 || 2-0 | 1-6 | 18 || 22 93:—|| 9-8 Id. ; ad; 5 wo. and curled cir. ¢ 1\| 565 || 60-9 | 55-5 |5-4 |) 2-4 | 1-2 | 19 || 22: 23:— 9-9 Td. ; id. ; id. 2 | 553 || 60-2 | 54-3 |5-9 ||} 2-6 | 1-7 | 21 | 22:23: — 9-5 Scud; cir.-cum.-str.; tufts of cir. and cir. haze ; sky stormy-like. 3 || 542 || 60-8 | 55-6 | 5-2 |) 2-2 | 1-2 | 19 || 22:23: — 9-8 Id. ; id. ; id. ; solar halo. 4|| 526 |\59.8 |54-2 |5-6 |1-6 11.2 | 20 |192:—:—| 99 llTa; 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. The 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, JUNE 2—4, 1845. 193 THERMOMETERS. WIND. Bano- Maxi ge: On0.-Ci Sky ee le Lee ra Species’ of Clouds and Meteorological R cs. at 32°. || Dry. | Wet. [Dis || force in |From| ™oving _|/slouded. 3 ep iea i 14, |10™. in. S ¢ mS Ibs. | Ibs. pt. pt. pt. pt 0—10. 99-521 || 59-4 | 54-4 |5-0 | 1-8 | 1-1 | 20-/)92:—:— 9-9 || Seud; tufts of cirri and cirrous haze. 509 ||57-6 | 53-2 | 4-4 || 1-7 {1-3 | 22 |}92:—-:—|| 9-8 Id.; various kinds of cirro-strati; cirri. 498 ||57-0 | 52-6 | 4-4 | 1-4 |1-6 | 20 | 23:—:—)| 9-5 Id.; cir.-str. ; cirri and cirrous haze ; imperfect halo. 486 || 55-2 151 6t 3-6 || 1-7 | 1-4 | 19 9-5 || Sky covered with cirri; cir.-str. and cirhaze; halo and parhelia. @ 482 | 52-9 | 50-1]) 2-8 || 1-2 |0-6 | 20 ||—:—:12|| 9-0 | As before; halo just disappearing. 471 || 51-3 | 49.2 | 2-1 0-6 |0-6 | 18 | 7-0 Id. ; cirri thinner. 465 || 49-1 | 48-0 | 1-1 || 0-7 | 0-4 | 19 7-0 || Cirro-strati, cirri, and haze. 458 || 48-3 | 47-0 | 1-3 || 0-2 |0-1 | 20 | 30 Id. 29-439 ||45-7 | 45-3 | 0-4 || 0-2 |0-0 | 20 3-0 || Cirro-strati, cirri, and haze round horizon. 419 || 46-4 |45-7 | 0-7 || 0-1 |0-0 | 22 4-0 Id. 396 || 45-7 | 45-3 | 0-4 || 0-1 |0-0 | 18 || 20:—:—|]| 10-0 || Smoky seud ; cirro-strati; cirrous mass. 371 || 49-4 | 48-3 | 1-1 || 0-5 |0-3 | 18 || 20:—-:—|| 10-0 || Scud; dense cirrous mass. 353 || 50-2 | 48-4 | 1-8 || 0-4 |0-2 | 17 10-0 Id. ; id. 340 || 51-2 | 49-3 | 1-9 || 0-2 |0-2 | 17 10-0 || Dense cirrous mass. 324 || 53-1 | 51-1 | 2-0 || 0-3 |0-6 | 19 || 20:—:—|| 10-0 || Scud and dense cirro-stratus. 298 || 56-4 | 53-6 | 2-8 || 1-8 | 1-0 | 18 | 20:—-:—1|| 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 send ; id. (0) 242 ||59-1 | 54-8 | 4-3 | 1-0 | 1-0 | 19 || 19:—-:—J| 9-5 || Seud and loose cumuli; cirri and cirro-strati. 221 || 60-6 | 55-1 | 5-5 | 1-3 | 1-3 | 18 || 18:—:—|| 9-4 || Send; cumuli; cirro-strati. 201 || 60-0 | 54-6 | 5-4 || 2-9 |1-8 | 18 || 19:—:— 9-7 Tdi id. ; id. (s) 160 || 61-0 | 54-1 | 6-9 || 3-4 | 2-3 | 18 ||} 20:—:—]|| 9-7 UG Wee Gls 2) 124 || 62-5 | 54-1 | 8-4 ||3-1 |2-2 | 19 | 18:—:—|| 6-5 || Cumuli; white cirro-stratus to W. 2) 074 || 62-2 | 55-0 | 7-2 || 3-5 |1-8 | 19 | 18:—:—J]) 7-5 || Loose cumuli; woolly cirri and cirro-strati. 037 || 61-4 | 53-6 | 7-8 || 3-0 |}2-1 | 18 |} 18:—:— 9-3 Td. ; dense cirro-stratus and haze.* 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. 954 || 55-0 | 51-2 | 368 || 1-4 | 1-1 | 20 | 18:—:—/| 10-0 Id. ; id. ; rain”? 921 || 50-8 |49-4 | 1-4 || 1-5 |0-7 | 18 | 18:—:—|]| 10-0 Id.; rain! 909 || 49-8 | 47-7 | 2-1 || 2-6 | 0-7 | 20 10-0 |) Nearly homogeneous ; rain”? 889 || 48-0 | 46-8 | 1-2 ||0-6 |0-3 | 21 10-0 || Scud; cirro-strati; cirrous mass. 874 | 47-7 | 46-4 | 1-3 || 0-7 |0-6 | 19 9-5 Id. 5 cirri. 876 || 47-7 | 45-5 | 2-2 || 1-5 |0-9 | 20 10-0 Id. 28-899 || 45-7 | 42-9 | 2-8 || 1-9 |0-9 | 22 10-0 || Seud. | 909 || 45-8 | 43-3 | 2-5 || 1-2 |0-7 | 22 10-0 Id.; cirro-strati; cirri. 929 || 44-9 | 42-3 | 2.6 || 1-2 |0-6 | 22 ||: 24:— || 4-5 || Cirro-stratous scud ; woolly cirro-strati. 949 ||43-3 | 41-2 | 2-1 || 1-1 |0-2 | 22 ||—:24:—]|| 2-0 Id. ; id. 957 || 43-6 | 41-74) 1-9 || 0-6 |0-8 | 20 | 24:—:25]) 4-5 || Send; cir.-str. seud; mottled, woolly, and linear cirri. © 973 || 45-4 | 43-3 | 2-1 | 1-3 |0-6 | 21 || —: 24: 25 2-0 || Cirro-stratous scud ; cirri; cirro-strati. (0) 9 || 28-996 || 49.3 | 46-2 | 3-1 || 1-5 | 1-5 | 21 || 22:—:— 5-0 || Scud; cirro-strati; cumulo-strati; cumuli; cirri, © 20, 29-001 || 50-4 | 46-8]| 3-6 || 1-7 | 1-2 | 20 | 23:—:—|| 6-0 || Scud and loose cumuli; cirro-strati, &c., as before. © 002 || 53-5 | 48-7 | 4-8 || 2-0 | 1-8 | 20 || 21:—:—|| 4-0 || Loose cumuli; loose cirro-cumulo-strati. (2) 015 || 54-7 | 49-5 | 5-2 || 2-5 |2-1 | 21 || 22:—:—]| 5-0 ICES cumuli ; cumulo-strati; cirro-strati. © 016 || 56-3 | 49-5 |6-8 || 2.6 |2-4 | 19 |22:—:—|| 60 ||; Ia; id. ; id. ; id. 2) 026 || 55-4 | 48-3 | 7-1 || 3-3 |2-7 | 20 | 22: —:— 6-0 de; id. ; id. ; nimbi. 047 || 54-8 | 49-8 | 5-0 || 4.3 | 1-7 | 21 | 22:—-:—] 9-0 || Seud; id. ; id. ; id.; rain” 057 || 53-4 | 48-7 | 4-7 | 2-8 | 2.3 | 20 | 22: —:— 9-8 Id. ; id. ; id. ; id.; raint® 085 || 51-3 | 48-2 | 3-1 || 3-7 |3-2 | 18 | 22:—:—] 9.5 Id. ; id. ; id. ; id.; rain? 096 || 49-8 | 48-0 |} 1-8 || 2.6 | 1-5 | 20 || 22:—-:—J| 9-8 || Scud and loose cumuli; cumuli; cirro-strati. DB} 100 || 52-2 | 49-4 | 2-8 || 1-6 | 1-2 | 19 | 23:—:—|| 45 Td. ; id. ; id. ; rainbows. » 116 || 53-5 51-0F 2-5 || 1-7 10-8 | 22 |93:—:— 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 || Seud; cirro-stratous scud ; cumulo-strati ; nimbi ; cirri. 170 | 49-1 |47-0]) 2-1 | 0-8 |.0-2 | 19 | 22:—:—|| 8.0 || As before. 178 || 48-6 | 46-7 | 1-9 || 0-6 | 0-2 | 19 | —:22:—|| 4-5 || Cirro-stratous seud. 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 21», Observations made at 21» 5™, June 325, Greenish sky to E.; cirro-strati of a slate-blue colour to NW. June 34195, Observations made at 194 30™, June 44 6, 7, and 84, 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. ops. 1845. ae 4 194 Gott Baro- Mean METER Time at 32° a h. in. 4 13) 29-196 14 196 15 187 16 172 17 179 18 187 19 175 20 159 21 150 22 || 137 23 || 115 5 (O} 122 1 | 113 2 113 3 117 4 121 5) 095 6} 069 7 il 047 8 | 29-017 9 || 28-987 10 960 11 954 12 951 13 || 28-961 14 944 15 925 16 922 17 893 18 901 19 899 20 903 21 935 22 936 23 955 675.0 963 1 968 2 || 28-988 3 || 29-025 4 052 b) 101 6 137 7 183 8 194 9 254 10 260 11 296 12 327 13 | 29-340 14 357 15 370 16 390 17 414 18 || 432 19 459 20|| 474 Hovur.ty METEOROLOGICAL OBSERVATIONS, JUNE 4—6, 1845. THERMOMETERS. WIND. LS ae > ; Se. : C.-s. : Ci., Dry. | Wet. | Diff. ee ae Wrom ee Road ed’ Species of Clouds and Meteorological Remarks. 1b, , 107, = 2 lbs. | Ibs. pt. pt. pt. pt. 0—10. 46-2 |45-4 |0-8 | 0-5 |0-1 | 17 6-5 || Cirro-stratous seud, 45-5 |44-9 |0-6 | 0-3 |0-1 | 17 5-0 || Seud ; cirri and cirro-strati-. 48-7 |47-5 | 1-2 | 0-2 |0-1 | 16 10-0 || Thick scud. (rippled; tinged with yellowish red 48-6 |46-6 | 2-0 | 0-4 |0-2 | 17 || —: 22:— 9-5 Cir.-str. and haze ; scud to N. and on Cheviot ; cirro-strati slightly 48-1 |46-3 | 1-8 | 0-4 |0-1 | 19 10-0 || Dense cirro-stratus and haze. 47-9 |46-4 |1-5 | 0-3 |0-1 | 14 10-0 Id. ; showers” 48-2 147-0 | 1-2 || 0-3 | 0-2 | 14 10-0 Ids; rain! 49-5 |47-7 |1-8 ||0-3 [0-3 | 15 || 15:—:—|] 10-0 |] Ragged scud below mass of cirro-stratus ; rain”? * 51.2 |49-5 | 1-7 ||0-5 | 0-7 | 15 || 18:—:—|| 10-0 Id. 56-6 |53-0 | 3-6 || 0-7 |0-8 | 16 || 17:—:— || 10-0 |] Scud; id. 57-7 | 54-8 |2-9 || 1-6 | 1-7 | 16 || 17:—:—]} 10-0 Id. ; id. 56-4 | 54-2 | 2-2 | 1-1 |0-8 | 17 || 18:—:—|]| 10-0 | Id.; id. 59.8 |56-4 |3-4 | 1-1 | 1-3 | 21 || 19: 20:—|| 10-0 |] Loose scud ; send. 62-3 | 58-4 |3-9 || 2-3 | 2-4 | 20 | 21:20:—]) 9-0 Id. ; id. 61-8 |57-8 |4-0 2-8 |0-7 | 21 || 18:—:—|| 9-9 || Scud; cirro-strati; cirri. 58-2 |56-0 | 2-2 |/0-5 |0-2 | 19 || 18:—:—]| 10-0 Id. ; id. 61-4 | 57-4 |4-0 |} 1-2 | 0-4 | 18 || 18:—:—}| 10-0 |) Id.; id. 60-8 |56-6 |4-2 || 1-6 | 0-4 | 16 || 17:—:—|| 10-0 Id.; loose eum.; cir.-str., gloomy and electric-looking 61-5 |57-0 |4-5 | 0-6 |0-5 | 16 | 16:—:—|| 9-6 || Id.; cirro-strati and cirrous haze. ' 60-9 | 56-4 | 4-5 |} 1-3 |0-7 | 15 || 17:18:—|| 10.0 itd; id.; cirro-cumuli and cirrous haze. 60-0 | 55-8 | 4-2 || 2-9 }3-0 | 16 }17:—:—]| 9:8 Id. ; id. ; id. 59-2 | 55-4 | 3-8 || 2-5 | 2-4 | 16 || 18:—:— 9-0 lista id. and cirrous haze. 59-2 | 55-2 |4-0 |/4-1 |3-8 | 15 9-9 || Id.; id. 57-7 | 54-4 |3-3 || 3-7 | 3-3 | 20 9-8 || Thick scud ; rain” 50-9 |48-9 | 2-0 1-6 | 1-0 | 20 1-5 || Bank on E. horizon. 49-8 | 47-2 |2-6 || 1-4 | 1-1 | 18 1:5 Id. 51-4 | 48-3 |3-1 | 2-7 | 1-3 | 18 1-5 || Scud and cirro-strati round horizon. 51-5 | 48-4 13-1 11-6 |0-8 | 17 || 18:—:—]) 4:0 || Scud; cirro-strati ; cirri. 53-0 | 49-2¢|3-8 | 1-8 |1-9 | 17 |19:—:—|] 5-0 || Id.; woolly cirri; dense bank of cirro-strati to E. 55-2 |51-3 13-9 | 3-3 |1-8 | 16 | 19:—:—|| 8-0 Smoky seud ; cirri ; id. to E and N 56-0 | 52-34] 3-7 | 3-1 |2-7 | 16 ||17:19:20]| 7-0 || Scudin two currents ; sheets of cir. & cir.-str. ; rainboy 57-4 |54-0 |3-4 || 3-7 |3-3 | 16 ||/18:—:—|} 9-8 || Id.; cirro-strati; a few drops of rain. 55-9 | 53-0 |2-9 | 2-8 | 1-4 | 19 || 19:—:—] 10-0 Ia.; shower”? 60-9 | 55-0 |5-9 | 3-1 |4-1 | 18 |} 18:—:—|| 9-8 || Seud and loose cumuli; cirro-strati. 59-7 |53-4 [6-3 | 5-5 |3-4 | 19 |} 18:—:—|| 9-7 Id. ; id. 60-7 |54-0 |6-7 | 6-4 |4-6 | 18 | 18:—:—]| 9-9 || Thick scud and loose cumuli. 56-7 | 52-7 |4-0 ||6-6 | 3-5 | 18 || 18:—:—]] 10-0 Id.; drops of rain. 58-2 |54-4 |3-8 | 6-4 |3-8 | 19 || 19:—:—]} 10-0 Gh id. 57-1 |54-0 | 3-1 |/6-1 | 2-6 | 19 || 19:—:—|| 10-0 Id. ; id. 58-9 | 54-7 | 4-2 |14-8 |3-9 | 18 || 19:20:— 7-0 || Scud ; sheets of cirro-strati and woolly cirri. 58-0 |53-4 14-6 115-8 ]3-3 | 19 || 20:—:— 9-8 || Thick scud; cirro-strati. 56-7 |52-3 | 4-4 ||4-2 |2-4 | 19 |} 20:—:—|]| 9-9 Id. 56-4 151-8 |4-6 ||3-7 |2-2 | 19 | 21:20:—)|| 9-0 |) Thin scud; cirro-cumulo-strati ; woolly cirri. 54-3 (50-8 |3-5 13-7 |1-6 | 19 | 19:—:—|| 4-0 Id. ; id.; id. 4 53-8 | 50-4 | 3-4 | 2-0 |0-6 P10 ee | Tah id. ; id.; cirro-strati 52-4 |49-5 |2-9 11-5 | 1-4 | 18 || 20:—:— 9-0 || Thick seud ; cirro-strati; cirrous mass. 52-2 |49-4 | 2-8 |}2-0 |0-9 | 21 9-5 || Seud; cirro-stratous seud ; cirro-cumulo-strati. 51-6 | 48-8 | 2.8 |11-5 |0-5 | 21 9:8 Id.; clouds denser than before. 51-6 | 48-9 | 2-7 | 1-3 |0-7 | 19 | 9-5 || Scud and cirrous clouds; sky in zenith. 50-6 |47-9 | 2-7 ||0-8 |0-8 | 18 | 20:18:—) 9-0 || Ta. im patches; cir.-cum.-str. radiating from S by] 50-6 | 47-7 | 2-9 | 1-1 | 1-4 | 19 || 20:18:—j| 9-0 Id. ; id. 49-7 |47-4 | 2-3 | 0-9 |0-7 | 19 | 20:18:— || 8-0 Id. ; id. —{rad. from S by 50-0 | 47-1 | 2-9 | 1-1 | 1-2 | 19 || 20:18:— 5-5 Scud in patches and on hor. ; detached cir.-str.; wool. and curl. ci 50-4 |47-8 | 2-6 ||0-7 |1-3 | 21 | 21:18:18|| 6-0 || Nearly as before, with net-like cirri. ) 53-2 | 50-2 |3-0 | 1-6 |1-0 | 19 | 20:—: 18 7-0 || Scud and loose cum. ; woolly cirri; cum. ; cir-stratus. © 55-0 | 50-2 (4-8 |] 1-7 |1-2 | 19 ||20:—:—l 7.0 Id.; id. ; id. 4 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. Th motions of the three strata of clouds, Sc. (seud), C June 44 20%, June 64 124, }.-8. (cirro-stratus), and Ci. (cirrus), are indicated in a ‘similar manner. The scud below cirro-stratus just touches the top of Cheviot. The anemometer index rests at — ae 0:2; set right before this observation, and the observation of maximum pressure corrected * See additional Meteorological Notes after the Hourly Meteorological Observations. y Or Hovrty METEOROLOGICAL OBSERVATIONS, JUNE 6—10, 1845. 19 THERMOMETERS. Winn. a ouds, BAO Wis Se.:C.-8.: Oi.,|| Sky : or Bay. | wot. | Diet ae moving alonded Species of Clouds and Meteorological Remarks. 1%, ;10™, ag in, ° ° ° |] Ibs. | Ibs. | pt. || pt. pt. pt. |] o—10 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. © 508 | 59-8 | 53-0 | 6-8 | 2-3 | 2-0 | 18 | 20:—:—] 6-5 Rd. id. (o) 510 || 60-8 | 53-2 | 7-6 | 2-0 | 1-2 | 19 ||20:—:—J] 6-0 Td:; cum,-str. and cirro-stratito E. © 518 || 60-5 | 53-2 | 7-3 1-7 | 1-7 | 19 || 20:—:—] 7-0 Id. ; eumuli; cirro-strati. (0) 511 || 60-7 |52-6 |8-1 |) 2-1 | 1-2 | 18 }19:—:— 6-0 Id. ; id. ; id.; cirri. (o) 540 | 63-8 | 55-8 | 8-0 | 1-8 |0-9 | 18 | 19:—:17)| 9.0 Id. ; woolly cir.; cum.; cir.-str.; haze.© 528 || 62-8 | 54-2 | 8-6 || 1-1 | 0-6 | 19 9-8 || Patches of seud; sky nearly covered with cirro-strati 513 || 60-0 | 52-7 | 7-3 || 1-2 | 0-2 | 21 9-9 || As before. {and cirrrous haze. 507 || 60-5 | 53-5 |7-0 0-2 |0-0 | 24 | 16 :— || 10-0 || Cirro-stratous scud; cumuli; cirro-stratus. 489 || 61-6 | 53-4f| 8-2 || 0-2 | 0-2 8 17 :_— 9.2 Loose scud forming below cir. haze ; piles of cauliflower cum.-str. 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. 5 13:—| 10-0 || Hazycir.-str.scud and cir.-str.; piles of loose cum. on hor. . 9 10-0 || Nearly as before; rain”? 453 || 53-1 |51-9 | 1-2 || 0-1 | 0-1 3 10-0 Id. ; id. 4 3 10-0 || Send and cirro-strati; rain! 10-0 Id. ; id. sean Sunday—Overcast, with cumuli; occasional showers 29-402 | 59-6 |53-1 |6-5 1-2 /03| 6 || 1:30:—|| | iy Bay 29-845 || 48-5 |45-2 |3-3 || 2-1 |0-5 | 21 2-5 || Cirro-strati. 861 || 47-5 | 44-6 | 2-9 ||0-7 | 0-8 | 21 1-5 || Patches of scud; cirro-strati. 877 || 47-0 | 44-3 | 2-7 ||0-9 | 0-4 | 18 || —:25:—]) 3-5 || Cirro-stratous scud; id. 892 ||47-2 | 44-8 |2-4 |}0-4 |0-6 | 19 || 25:—:—|| 5.0 || Scud; cirro-strati; woolly cirri. 919 ||49-7 |45-3f/ 4-4 ||/0-8 |0-6 | 20 | 25:—:—] 8.0 Id. ; id. ; id. 930 || 49-2 | 45-8 | 3-4 ||0-6 | 0-6 | 20 |} —: —: 28 6-0 Mottled cir. and cir.-str. ; eymoid cir.-str, scud on E. horizon. (0) 943 ||51-6 |47-5 | 4-1 ||0-6 |0-5 | 17 7-0 Cir-str. to E., thick cir, haze and woolly cir. to W.and NW.;masses of cum.to NW. © 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. © 972 || 55-9 |50-74)/ 5-2 || 2-1 | 1-3 | 20 | 23:— 9-0 || All as last hour, with drops of rain. r=) 10-0 Masses of loose cum. ; dense cir, haze, becoming cir.-str.; dropsof © 10-0 Td. ; id. [rain. 958 ||57-7 |52-3 | 5-4 2-5 | 20 || 22:—:—J| 10-0 || Masses of scud; cirro-strati and cirrous haze. 956 ||58-1 | 52-5 |5-6 || 3-2 | 2-0 | 18 | 21:—:—|| 10.0 Id. ; id. e 972 ||57-3 |51-7 |5-6 || 3-9 | 1-5 | 20 | 22:—:—|) 10-0 || Seud; dense cirro-stratus and haze. 972 ||55-0 | 51-4 |3-6 || 4-0 | 2-7 | 20 | 21:—:—|| 10-0 Td. ; id. 967 || 54-6 | 51-6 | 3-0 || 2-7 | 2-4 | 20 | 20: —:—]| 10-0 Id. ; id. 980 || 54-3 | 51-3 | 3-0 |/3-0 | 2-3 | 19 | 20: —:—|| 10-0 Id. ; id. ) 974 ||54-8 | 52-2 | 2-6 || 2-8 | 1-7 | 19 || 20:—:—]| 10-0 Id. ; id. 29-987 || 55-2 |52-7 | 2-5 ||2-0 | 1-2 | 18 || 20: —:—| 10-0 Id. ; id. 30-005 || 54-7 | 52-8 | 1-9 || 1-6 | 1-6 | 21 || 20:—:—]| 10-0 Id. ; id}; drops of rain. 013 || 55-0 | 53-0 | 2-0 || 1-7 | 0-6 | 21 | 20:—:—|| 9-9 TId.; cirro-strati. 015 || 54-5 |52-8 | 1-7 || 1-0 | 1-7 | 21 || 20: —:—}| 10-0 Id.; mass of cirro-stratus. 020 || 53-9 |52-7 | 1-2 1-0 | 0-8 | 21 || 21:—-:—]| 9-5 || Smoky seud; cirro-strati; cirrous haze. 022 || 53-5 | 52-3 | 1-2 11-2 | 0.6.) 21 5:5 Td. ; id. ; id. | (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. | O17 ||54-6 | 53-4 | 1-2 || 0-8 | 0-7 | 22 6-5 || Scud; cirro-strati ; cirri radiating from SW by W. 028 |'55-0 | 53-6 | 1-4 ||0-7 | 0-2 | 22 10-0 || Cirro-stratous scud. 021 || 54-7 | 53-8 | 0-9 || 0-7 | 0-7 | 20 || 20:—:—]] 10-0 || Misty scud, very low and moving quickly. 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 044 ||56-8 | 55-8 | 1-0 0-8 |0-5 | 18 10-0 || As before. [the scud. _ 041 || 57-4 | 56-0 | 1-4 |/0-9 | 0-8 | 18 || 21:—:—}]) 10-0 || Scud; cirro-strati and a cirrous mass. _ 064 || 58-7 | 56-7 | 2-0 || 1-2 | 0-7 | 20 || 20:—:—|| 10-0 Id. ; id. 071 || 58-8 | 56-7 | 2-1 || 0-9 | 0-9 | 19 ||20:— :—|| 10.0 |} Thick scud. 072 || 62-5 |59-2 | 3-3 0-8 | 0-9 | 21 9-9 Id.; _—cirro-strati. 072 || 62-2 | 58-3 | 3-9 ||1-1 |0-3 | 20 | 20:—:—J]) 9-8 || Scud; cirro-cumulo-strati; cirro-strati; cirri. 068 || 62-9 | 59-2 |3-7 0-7 | 0-7 | 21 | 21:—:—]| 9.8 |) Id.; id. ; id. ; id. e 071 || 65-0 | 60-5 | 4-5 | 0-9 | 0-5 | 21 | 21:—:— 9-9 Id. ; id. ; id. ; id. ® 072 || 63-5 |59-3 | 4-2 0-8 | 0-7 | 21 121:—:—lIl 9-9 || Id; id. ; id. ; id. direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, HE. = 8,8S.=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. 74 6%, Atmosphere close, and appearances electrical, in about 15™ ; portion of a solar halo and fine drops of rain. Hovurty METEOROLOGICAL OBSERVATIONS, JUNE 10—12, 1845. THERMOMETERS. WIND. BARo- - ——— ? Maximum Se.: C.-s: Ci.|| Sky pir. | force in | prom moving clouded. 10", Species of Clouds and Meteorological Remarks. at 32°. | Dry. | Wet. a. oh im Ale S ° || Ibs. | Ibs. | pt pt. pt. pt 0—10. 10 330-064 | 66-0 | 60-7 | 5-3) 1-0 |0-6 | 21 ||21:—:—]) 9-5 || Scud and loose cumuli ; cirro-strati; cirri. a | 049 || 64-8 | 60-2 | 4.6] 0-9 |0-7 | 20 22:—:— 8-5 Id. ; id. ; id. 5 042 62-7 |58-7 | 4.0 0-8 |0-7 | 20 || 22:—:— 7-5 Id. ; : id. ; id. € 6 043 | 62-7 | 59-0F 3-7||0-6 |0-6 | 20 || 22:—:— 9:0 || Misty cir.-str. scud ; cum. on horizon; sheets of cirri 7\ 044 | 61-4 158-0 | 3-4]|0-7 |0-3 | 21 ||} 22:—:— 6-5 Id. ; sheets of mottled and diffuse cir. ¢ 8 045 ||60-8 |57-7 | 3-1] 0-5 |0-3 | 19 || 21: 22:23]| 8-0 || Misty scud; cir.-str.scud; sheets of cir. ; cum. on hor.€ 043 | 58-9 56-8] 2.1 ||0-4 |0-4 | 21 9-9 || Id. id.; id.; seud denser than befor 10 039 | 58-0 |56-3 | 1-7]0-3 |0-1 | 19 |} 21:—:—]| 9-9 Id. ; id. ; cirro-strati. 11 037 || 57-7 | 56-2 | 1-5 || 0-4 |0-2 | 20 9-9 || Send and cirro-strati. 12|| 038 || 57-4 |55-8 | 1-6]]0-3 |0-1 | 23 9.9 Td. r 1] 13 | 30-037 || 56-4 | 55-1 | 1-3]/0-3 1 | 22 9-8 || Scud and cirro-strati. 14 026 | 56-6 | 55-1 | 1-5]/0-1 |0-1 | 22 9-9 Id. 15 024 1156-7 |55-1 | 1-6]/0-7 |0-3 | 20 |} 21:—:—|]| 10-0 | Seud. 16 013 | 55-4 | 54-2 | 1-2||0-3 |0-1 | 23 || 21:22:—|| 9-8 || Id.; cirro-cumulo-strati; cirrous haze. Uy 015 56-0 | 54-7 | 1-3]/0-3 |0-1 | 20 ||}22:—:—|| 7-0 || Loose seud; woolly cirri and cirro-cumuli, 18 018 ||57-7 | 56-0 | 1-7||0-1 |0-0 | 22 |} 22:—:—|| 9-9 Id. ; cirro-strati and cirri. 19 012 || 60-9 | 58-4f, 2-5 || 0-4 | 0.2 | 20 | 21:23:—| 9-9 || Misty scud; cirro-cumulo-stratus. 20 017 || 61-1 | 58-0 | 3-1]/0-5 |0-3 | 20 9-9 || Patches of loose seud ; cirro-cumulo-stratus. 21 020 || 61-4 58-0 3-4/0-8 |0-6 | 19 10-0 Id. ; cirro-strati and cirrous mass 22 017 || 66-0 |61-0 | 5-0||0-8 |0-5 | 19 || —:23:—|| 9-0 || Cirro-cumulo-strati; cirro-strati; cirri. 23 | 020 68-5 |62-2 | 6-3} 1-2 | 1-2 | 20 ||—:21:—] 7-0 In bp loose cumuli; cirro-strati ; ci 1L O} 017 || 67-3 |61-2 | 6-1} 1-1 |0-8 | 20 || 22:—:—J|| 7-0 || Seud and loose cum. ; cir.-str. ; diffuse and mot. cir. 1} 012 || 68-0 | 61-4 | 6-6) 1-3 | 1-1 | 20 || 22:—:— 7-0 Id. ; id. 2 || 016 || 69-0 |61-5 | 7-5|/0-8 |1-5 | 20 |}22:—-:—|| 7-0 Id. ; id. ; id. 8 a0: 005 || 70-0 | 62-2 | 7-8] 1-2 |1-2 | 21 |}\21:—:—|| 7-0 Td. ; id. ; id. 4 : 1-1 . : : id. ; i 5 7-9 0-9 4 6 7-1 B : patches of cirri and cir.-cum. 7 976 || 68-3 |61-6 | 6-7 || 0-4 |0-2 | 22 || —:—=:20]| 2-5 || Sheets of woolly and mot, cir. ; loose cum. near hor. G 8 977 || 66-5 | 60-4 | 6-1]/0-2 |0-1 | 22 1-0 | Flat eumuli to N.; sheets of cirro-strati and cirri, — 9 || 29-993 | 63-1 | 59-6]) 3-5] 0-0 |0-0 | 20 2-0 || Sheets of cirro-strati and cirri. 10 || 30-001 || 60-0 |57-7 | 2-3|/0-1 |0-0 | 20 || —:20:—|| 2-0 |) Cirro-cumulo-strati; cumulo-strati on E. horizon. ll 005 || 57-0 |55-8 | 1-2}0-1 |0-0 | 17 2:0 | Cirro-strati and cirri; id. Td. ; id. . : p . Cirro-cumulo-strati ; cirro-strati. 14) 29-999 || 53-7 | 53-2 | 0-5||/0-0 | 0-0 | 20 2-0 Td. ; id. on horizon ; woolly ci 15 I 29.994 || 52-8 | 52-2 | 0-6|/0-1 |0-1 | 22 3-0 || Cirro-strati and haze on horizon. 16 || 30-001 || 51-7 |51-3 } 0-4|/0-1 |0-0 | 18 |; —:20:— || 8-0 | Cirro-enmulo-strati ; cirro-strati. 17 | 30-001 || 52-2 |51-9 | 0-3|0-1 | 0-0 —:20:—|| 5-0 | As before; cir. haze ; mass of electric-looking clouds to 18 | 30-000 | 53-7 | 52-74) 1-0|/0-0 |0-0 | 20 || —:20:—}) 6-0 | As before; very hazy round horizon. 19 | 29-990 || 56-1 | 54-9 | 1-2]/0-1 |0-0 | 20 || —:19:—}| 10-0 || Cirro-cumulo-strati; very hazy near horizon. 20 993 || 59-3 56-9} 2-4|/0-1 |0-0 | 20 ||; —:20:—) 10-0 } Id. ; id. 21 988 || 64-5 |61-1 | 3-4//0-1 |0-0 | 24 || 20:—:24] 4-0 ?|| Patch of seud ; wo. and diff. cir; atmosphere very hazy. 22 976 || 68-5 | 63-9 | 4.6|/0-0 | 0-0 | 20 9-0 || Cirri, &c. ; atmosphere very hazy. 23 969 || 71-1 |65-7 | 5-4)/0-1 |0-0 | 16 || —:—:24]| 7-0 || Woolly and linear cirri ; ; atmosphere very hazy. =) 12 0 967 | 74-6 | 67-6 | 7-0))/0-4 |0-3 | 18 ||20:—:—|| 5-0 || Masses of loose cumuli; streaks of cirri; very hazy. ¢ 1 962 || 77-4 | 69-0 | 8-4]/0-6 |0-4 | 18 || 20:—:—]| 4-0 IGE id. ; id. 2) 958 || 77-0 |68-0 | 9-0|0-6 |0-3 | 18 2.5 aes cae less cum. and hav 3 946 || 78-1 | 68-0 |10-1||0-7 |0-6 | 20 ||17:—:—|| 2-5 || Small masses of cumuli; cirri near horizon; hazy. | 4 938 | 78-2 | 68-0 |10-2|/0-6 |0-6 | 20 ||/16:—:—|| 2-0 || Cum.-str. to SE.; woolly cir. to NW.; hazy on hor. © 5 939 || 75-7 |66-74| 9-0 1-1 |0-6 | 20 1:5 | Cum.-str. to E. and SE. ; ; woolly cir. ; ‘hazy on hor. 6 934 || 74-8 | 65-4 | 9-4|/0-9 | 0-6 | 20 2-0 53 ie idan id. Oo 7 931 || 72-8 | 64-2 | 8-6|0-6 | 0-4 | 20 2-5 || Id. ; Is i 8 942 | 69.2 |62-9 | 6.3/0.4 |0-1 | 20 2.0 | Id. ; id. ; — 9 955 | 65-8 | 61-3 | 4-5]/0-2 |0-0 | 18 2-5 | Dense bank of cir.-str. and haze on E. hor.; wo. vir. 10 954 | 62-4 |59-5]| 2-9] 0-2 | 0-1 | 18 2-0 | Cirro-strati ; ; cirri and haze. é 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. Th motions of the three strata of clouds, Se. (seud), (.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. June 104 20%, Observations made at 205 5m, June 114 215, Observations made at 21 5m, Wind. Clouds, Sc.: C.-s,: Ci., Sky moving clouded. Species of Clouds and Meteorological Remarks. from Maximum _ | Dife, || force in ° pt. pt. pt. Cirro-strati; cirri to north, Id. ; id. Cirro-strati; cirri, coloured red to NNE. Id. ; id. Id. ; id. [the ground. cirri, coloured crimson to NE.; mist on Strips of woolly cirri to NW., radiating from SW. and NE.; hazy,© Id. ; very hazy.© Td. ; id. (0) Patches of scud and woolly cirri round horizon. (0) Patches of cumuli; woolly cirri and loose cirro-strati. © Td. ; band of woolly cirrus lying from NE. to SW.© Ge woolly cirri and cirro-strati. 8 Woolly cirri and cirro-strati; patch of scudto W. © Id. 0) LGB patches of scud to S. © Id. ; id. id. id. Patches of cumuli to SE. ; diffuse cirri to N. Id. ; id. Id. ; id.; haze on E. hor. Tats id. ; id. Cirri and haze. Id, Cirrous haze on horizon ; faint lunar corona. Cirro-strati to N.; cirri to SW. SRWE SSOP OD ee WOWwWUNnOowe ROO uo yvyvO000000 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. [rad. from SW: Id. ; id. ; cirro-cumulo-strati. Id. ; cirro-cumulo-strati; cumuli; woolly cirri, Seud and loose cumuli ; cirro-strati; woolly cirri; haze. Id. ; id. ; id. ; id.© Id.; woolly cirri; cirrous haze; solar halo.© Cirro-cumulo-strati ; cirrous haze ; woolly cirri; halo.@ Loose cumuli, moving in two currents; woolly cirri. © Woolly cirri; patches of seud and cumuli. Cumulo-strati to 8. ; cirri. fo} Woolly cirri; cumulo-strati; faint solar halo. (s) Id. ; cir.-str. ; a slight tendency to a parhelion.@ Cirro-cumulous scud ; woolly cirri. Id. ; cirro-cumuli, cirri, and cir. haze. )) Tas id., id. 54-7 Td. ; id. 69-0 Sunday—Overcast, with thick scud and cirro-stratus. 55-7 : : : 5 . Cirro-strati. 55-0 : A 5 i! Id. 55-0 x 5 ri iy H Id. 154-9 : : - - . Id. 66-7 66-5 67-5 69.3 68-5 69-2 67-8 66-3 64-4 62:4 59-4 57-5 55-2 | v0 | Apae eae | it | | PPP HOH WAANOWKARDODM to o June 124 134 (15 10™ a.m, Mak. M.T.) Strong twilight, the smallest type read with ease. June 124 164 20m. The mist on the ground has a purplish tinge at some places. June 134 12%, Observation made at 12 5™, June 144 0%, Observation made at 0» 5™, AND MET. oBs, 1845. 198 Hovurty METEOROLOGICAL OBSERVATIONS, JUNE 15—18, 1845. | Maximum ae Species of Clouds and Meteorological Remarks. | Wet. | Dift.|| force in | Prom | THERMOMETERS. | WInp. | | Cirro-strati. Id. and seud ; smart shower. nearly homogeneous ; rain? Id. ; id. ; rain’? Patches of scud to W.; dense cirro-stratus. Scud and eum. on NW. hor. ; dense cir.-str. ; rain”? ie id. Seud ; cirro-strati ; cirrous mass; rain!? Id. ; i Id. ; Id. ; ids id. ; scotch mist. Tre aR i Id.; cirro-cumulo-strati ; occasional showers. Loose scud ; cirro-stratous scud; id. Id. ; id. Id. ; id. ; drops of rain. Cirro-stratous scud. || Seud and cirro-stratus. Id. ; very light drizzle. = wCOonoaurkwno Y | Send and cirro-stratus ; very light drizzle. Id. | Id. ; id. | Scud; dense cirro-stratus ; rain”? || Loose low misty seud to N.; scud; dense cir.-str.; rain”? || Nearly as before, clouds more homogeneous ; rain?” Loose misty scud, moving very slowly ; loose cir,-str.; cir-cum.-str. | | Scud and cirro-cumulo-stratus. Scud ; cirro-strati; cirro-cumulo-strati ; cirri. dite id. ; id. iG R ad.sy id. Id. ; GIES id.; drops of rain. Id.; cirro-cumulo-strati. id. ; ida; thick cirrous mass; rain! ; showers*—° since 3% id. dense cirro-cumulo-strati and cirro-strati. dense cirro-strati; misty on horizon. id. ; id. id. ; id. id. ; id. id. id. Seud ; dense cirro-strati. 53-8 | 52-8 | 1- a E 5 Id.; cirro-strati; cirrous mass. |53-3 | 52-3 |1-0 | 0. wiles :—: . Id. ; id. ; cumulo-strati to E. |52-7 \51-7 | 1-0 || 0- i =: : Cirro-cumulo-strati ; wavy cirro-str. ; loose scud to E. 53-5 (51-8 |1-7 | 0- . : Sky covered with wavy cirro-strati, dark blue to W. | 53-5 | 51-0 | 2. “1 | 0: :15: E Cirro-cumulo-strati ; wavy cirro-strati ; cum.-str. to E. 54-6 | 52-0 |2-6 || 0-0 | 0: anGks : Dense cirro-stratus. 54-4 |52-0 | 2-4 | 0- . Id. ; drops of rain. |55-0 | 52-7 |2-3 | 0-1 | 0. : Ids; id. 587 |\54-0 |52-0 | 2- d B : Clouds homogeneous ; rain””® 576 || 55-1 |53-6 | 1-5 || 0- ‘ 3 218: : Dense cirro-stratus ; rain”? 577 | 58-5 |56-1 | 2-4 || 0- 0 | | 10-0 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;:8.= 16, W. = 24. ine motions of the three strata of clouds, Se. (seud), @.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. June 154 215, Observation made at 21> 10™, June 184, New turkey feather vane erected to-day. { it P09 to = THERMOMETERS. WIND. Dry. Wet. Diff. Maximum force in [Prom 10™, 60-3 62-1 67-0 64-7 62-6 SO OMA 60-0 60-4 62-5 65-7 63-4 65-0 67-6 67-2 67-3 67-7 63-0 59-9 57:8 56-6 60-7 58-6 56:7 57-2 55-8 56-0 55-5 54-4 NOK OFF OF = SCAanNor@WaO ww eeessseoeo WNeeeeeee 2 pa 2° or 20 || 30: 31 | 31: _ loo) pw Hele te lestee eletateey ets eal asdeny : 28 Hovurty METEOROLOGICAL OBSERVATIONS, JUNE 18—20, 1845. 199 Species of Clouds and Meteorological Remarks. Dense cirro-stratus; drops of rain. Patches of seud; dense cirro-stratus. Masses of thick scud ; id. Thick electric-looking scud; dense cirro-strati. Seud; dense cir.-str. ; much haze; rather electric-looking. Td. ; id. ; id. Id. ; id. ; id. Id. ; id. ; id.; _ electric-looking. Patches of seud; dense homogeneous cirro-strati; drops of rain. Scud and dense cirro-stratus. Id. ; drops of rain. Id.; rain! Rain? Scud and cirro-strati. Id.; rain! Id. Scud ; cirro-cumulo-strati; cirro-strati. Scud and loose cumuli; cirro-strati; woolly cirri. © Cirro-cumulo-strati ; cumuli ; id; id. Id. ; cirro-strati; patches of scud to N.© Scud and loose cumuli ; cirro-strati. © Id. Id. Id. Td. Cirro-cumulo-strati and cirro-strati. Scud and cirro-stratous scud. Cirro-stratous scud ; cumuli. Id. Id. Id. ; cumuli. (s) Id. 0) Id. © Cirro-cumulo-strati ; cirro-strati. Cirro-strati. ») Cirro-cumulo-strati to N. ») Cirro-cumulo-strati to N. »)) Id. Thick seud. Scud ; cirro-cumulo-strati. Td. Id.; cirri. Id. ; cirro-stratous scud. Td. ; id, Scud and loose cum. ; cir.-cum.-str. ; cirri. e Cirro-stratous scud ; id. Seud and loose cumuli. (=) Id. ; cirro-strati. fo) Id. ; id. fo) Id. ; id. 0} Td. ; cir.-cum.-str. ; cir.-str.; cirri © Id. ; hs id. (>) Id. ; ad. id.; cumuli.© Loose cum. and cum.-str.; cirro-strati to NW. (0) Cumulo-strati; cirri and cirro-strati. fo} Cirri and thin cirro-strati; scud and loose cumuli. © WYbeidirection of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E. = 8, S.=16,W.= 24. The Es of the three strata of clouds, Sc. (scud), C 8. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 200 | Gott. Baro- Mean || METER Time. || at 32° a oh in 20 9 || 29-887 10 886 1l 886 12 880 13 || 29-869 14 855 15 850 16 833 17 833 18 829 19 829 20 821 21 830 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 17 850 | 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 | 824 8 | 823 9 | 820 10 818 11 | 817 12 807 13 | 29-800 14 791 Hovurty METEOROLOGICAL OBSERVATIONS, JUNE 20—23, 1845. | Toermomerens. WIND. } 7 | 2 Clouds, | ee au r . force in ' Dry. | Wet. | Diff. | ere: From ear i] ih LY < | bs. Ibs. pt. pt. pt. pt. 0—10. | 56-4 52-24) 4.2 0-3 |0-0 | 24 7-0 154-3 | 50-4 |3-9 | 0-1 |0-0 | 20 |) 6-0 53-0 | 48-7 |4-3 || 0-1 |0-0 | 24 | 9-0 53-9 | 50-7 | 3-2 | 0-2 |0-1 | 20 85 54-3 | 50-6 |3-7 || 0-1 |0-0 | 23 9-0 | 53-0 | 50-3 |2-7 ||0-2 | 0-1 | 20 9-5 | 54-0 | 50-7 |3-3 || 0-2 |0-2 | 21 9-9 | 54-9 | 51-0 | 3-9 |/0-5 |0-3 | 20 9:9 54-9 |51-3 | 3-6 || 0-4 |0-3 | 22 ||25:25:—|| 9-5 56-4 | 52-8f| 3-6 | 0-4 |0-3 | 20 ||—:25:—|| 8-0 | 56-9 | 53-2])3-7 | 0-7 |0-8 | 22 || 25:26:—|| 9.8 | 58:0 | 54-3 |3-7 0-9 |0-9 | 22 | 26:26:— || 10-0 | 60-1 | 56-0 |4-1 ||0-7 |0-2 | 23 || 25:26:—|| 10-0 | 60-6 | 56-8 |3-8 || 0-5 |0-1 | 20 | 24:—:—] 10-0 | 61-6 | 58-1 |3-5 |}0-4 |0-1 | 24 |24:—:—|| 10.0 64-1 | 58-7 |5-4 |/0-4 |0-1 | 26 | 23:—:—]| 80 65-6 | 57-9 |7-7 | 0-7 |0-8 | 28 || 23:—:—|| 5-0 66-7 |57-8 |8-9 0-9 |0-6 | 26 |} 24:—:—|| 2.0 65-1 | 57-0 |8-1 ||0-9 |0-7 | 24 1-0 65-0 |56-5 |8-5 || 1-1 |0-3 | 24 |} 26:—:—] 2.0 64-3 | 55-6 |8-7 ||0-8 |0-6 | 26 ||26:—:—] 0-7 62-5 |55-2t|7-3 || 0-5 |0-3 | 26 1-0 || 62-4 | 56-4 |6-0 ||0-3 |0-2 | 30 ||—: 2:26] 6-0 61-2 | 56-8 | 4-4 | 0-4 |0-3 | 24 }—: 2:—] 8-5 157-8 |52-6 |5-2 10-3 |0-1 | 10 ||—: 2:—] 7-5 | 56-2 | 51-04) 5-2 ||0-2 |0-3 | 30 |] 25:—:—|| 7-5 [54-3 | 50-3 | 4-0 |/0-1 |0-0 | 28 ||/28:—:—| 7-5 |51-8 |48-9 |2-9 0-1 |0-0 | 26 5-0 | 60-4 |53-8 |6-6 0-7 |0-2| 22 | ff eran | 46-0 45-0 | 1-0 || 2-4 |0-1 | 20 2.0 145-6 | 44.2 | 1-4 10-1 |0-0 | 22 1-5 |45-2 | 43-7 |1-5 |10-1 |0-0 | 23 2.0 |44-7 |43-0 | 1-7 | 0-2 |0-2 | 23 3.0 | 45-1 |43-74|1-4 |/0-5 |0-0 | 22 2.0 | 47-0 | 44-8 | 2-2 ||0-3 |0-4 | 24 || —:28:—]| 2.0 50-6 | 46-7 |3-9 ||0-5 |0-4 | 24 ||—:28:—]] 3-5 52-7 |47-8 | 4-9 ||0.4 |0-3 | 22 ||—:28:—]] 3-5 55-6 |50-34/5-3 || 0-3 |0-1 | 22 || —:28:—]| 8.0 | 56-0 | 50-2 |5-8 | 0.4 |0-4 | 23 | —:28:—|| 8.0 56-7 | 50-0 |6-7 | 0-4 |0-6 | 22 |\24:29:27] 8-5 60-7 |53-2 |7-5 || 0-4 |0-4 | 24 ||24:98:—|| 8.0 60-4 | 52-8 |7-6 ||/0-5 |0.-4 | 25 ||299:—:—|| 8.0 60-9 |51-0 |9-9 |0-5 |0-5 | 29 |29:—:—|) 8.5 61-7 | 53-0 |8-7 || 0-4 |0-2 | 30 ||26:—:—]| 9.0 63-0 |55-3 |7-7 0-4 |0-3 | 26 || 26:—:—]] 9-5 62-2 |55-2 |7-0 | 0-4 |0-3 | 24 || —:28:—]) 9.8 60-6 | 54-6 |6-0 || 0-4 |0-3 | 23 || —:28:—]] 9.9 | 60-0 | 54-3 |5-7 ||0-4 |0-3 | 25 ||—:26:—|] 10-0 | 59-3 |54-6 |4-7 |0-3 [0-1 | 24 | —:26:—| 10-0 | 57-3 | 53-7 |3-6 |/0-5 |0-2 | 22 || —:—:26]| 4.0 |54-0 | 51-9 |2-1 || 0-2 |0-0 | 25 3-0 51-9 | 50-5 | 1-4 [0-1 |O-1 | 20 2.0 | 49-3 | 48-3 |1-0 ||0-1 |0-1 | 15 2.0 49-4 | 48-3 | 1-1 (0.3 0-2 | 21 3-0 48-3 |47-7 |0-6 |\0-2 |0-1 | 18 2:0 Species of Clouds and Meteorological Remarks. | Seud ; cirro-strati. | Cirro-stratous scud ; cirro-strati; cirri. Cirri and cirro-strati. Cirro-strati; cirri and cirrous haze; red to NW. 4 iG eirro-cumulo-strati. % Id. ; id. Cirro-strati ; cirro-cumulo-strati oi Id. ; id. DE Id.; clouds tinged red to E. GL mass of cirro-stratus. : y Id.; dense cir.-str. ; cum. to W.; str. to E, and on Cheviot. | Cirro-stratous seud ; cir.-str. ; woolly and mottled cir.@] — Loose scud ; thick cir.-str. and cir.-str. scud; cirri seen | Seud and cizro-strati, [to 8. wae oe, Seud and cirro-strati. Id. Loose cumuli. Id. ld. ; patches of cirri, Id. ; cirri and cirro-strati near horizon. ids; id. Td. ; streaks of cirro-stratus near horizon. af: Bad cirro-strati and cumuli on horizon. Cirro-cumulo-strati; woolly cirri. Id. ; id. Id. ; id. ; eumuli to N. 5 S085 ses aa ODDODOO000O Id. and loose cumuli. ! Seud ; cirro-strati; light cirri. »)} p : | Sunday—The mean quantity of clouds about 6; sunshine. Woolly cirri and cirro-strati radiating from NNW. ) Woolly cirri and cirro-strati. } Diffuse cirri; cirro-strati; patches of scud to N. dy Cirri and sheets of cirro-strati. ») | Cirro-cumuli and cirro-strati. e} | Id. ; scud on Cheviot. (0) fi Td. ; haze on horizon. oO} Id. ; scudand loose cum.to N. (0) 5 Cirro-stratous scud ; loose cumuli; cirri. | Cirro-cumuli and BE g cues 3 cirri. e] Seud and loose cum. ; detached cir.-cum. ; woolly cir.-cum, ; cir,-str. | Loose cumuli ; cirro-cumuli ; cirri. fo} | Scud and loose cumuli; cirro-strati; very hazy on hor.@} Id. ; id. ; id. (0) | Id. ; idws cirri; haze. | Id. : id. ; id.$, ‘ad; (=) | Cirro-strati and cirro-cumulo-strati; scud; cum.; cum.-str.; haze. Cir.-str. ; cir.-cum.-str.; masses of seud and loose cum. | Loose cirro-strati; cumulo-strati to E.; masses of send. } Id. ; masses of scud. | | Thin cirri; cirro-stratous seud to E. 10} Thin cirri and cirrous haze ; cirro-strati on horizon. ; Id. ; id. | Thin cir. and cir. ieee cir.-str,; patches of scud to N. > Thin cir. and cir. haze; cir.-str.; patches of scud to N,; lunar cor. > Id. ; id.; id. ; eee) 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. (seud), C. .-8. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner, | Hovurty METEOROLOGICAL OBSERVATIONS, JUNE 23—25, 1845. 201 and THERMOMETERS. WIND. ; | 3 Clouds, s 4 Se.:C.-s.: Ci, Sky aS sires a poe ss, movin g peony Species of Clouds and Meteorological Remarks. 1, {Jom | rom in. 2 = © Tbs. | Ibs. | pt. |] pt. pt. pt 0—10. 29-770 || 49-0 | 47-8 | 1-2 || 0-3 | 0- 26 |—:29:—|| 3-0 | Cirro-cumulo-strati ; cirro-strati ; cirri; lunar corona. )) 748 || 49-0 | 47-3 |1-7 || 0-1 | 0-1 | 22 || —:28:—] 6-0 Td. ; id. ; id. y 724 || 48-5 | 47-5f/ 1-0 |0-1 |0-0 | 20 |—:26:—| 7-0 Fas; id. ; id. (s) 708 || 50-7 | 48-8 |1-9 0-1 |0-1 | 23 ||—:24:—| 8-5 imG8 id. ; id. ; cum.-str. to E.G 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. 668 || 55-6 | 52-4 | 3-2 110-5 |0-4 | 22 || 21:20:—/| 10-0 || Patches of loose scud; dense ecir-str, and cir.-haze. thaze. 659 || 56-9 | 53-6 | 3-3 || 0-6 | 0-1 | 21 |20:—:—1|| 10-0 |] Masses of send ; dense cirro-stratus and cirrous haze. g 638 || 58-6 | 54-5 | 4-1 ||0-5 |0-1 | 22 || 20:—:—} 10-0 |) Scud; dense cirro-stratus and cirrous haze. ' 605 || 56-8 | 54-5 | 2-3 |/0-1 |0-1 | 24 || 20:—:—|]| 10-0 Id. ; id. ; rain?” 0 577 || 57-0 | 55-0 | 2-0 || 0-1 |0-0 | 16 10-0 || Scud and dense cirro-stratus ; continuous rain!—? 1 544 || 57-4 | 55-0 | 2-4 ||0-0 | 0-0 | 16 || 15:—:—|| 10-0 || Seud; dense mass above; id. 2 506 || 58-2 | 56-0 | 2-2 || 0-2 |0-0 | 12 | 15:—:—1| 10-0 Id. ; id. ; id. a3 474 || 59-5 |55-7 | 3-8 ||0-1 |0-0 | 12 | 16:—:—) 10-0 || Loose and cumulous seud ; cirro-strati; rain”> » 4 445 || 58-2 |53-7 | 4-5 |/0-1 |0-0 |) 0 | | 10-0 || Heavy masses of cum. send ; 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‘ 6 430 || 53-S | 51-4 | 2-4 ||0-3 |0-3 | 29 | 27:—:—|| 10-0 Td: cirro-strati and a cirrous mass. 7 432 || 51-8 | 49-5 |2-3 10-7 |1-0 | 31 | 27:—:—] 10-0 || Id. ; id.; rain! 8 434 || 51-0 | 49-0 | 2-0 ||0-6 |0-2 | 30 |—: 28:—|| 10-0 || Cirro-stratous seud ; cirro-strati. 9 432 || 51-2 | 49-0 | 2-2 ||0-3 | 0-3 | 30 || —:28:—J]] 10-0 || Td: id. 10 432 || 50-9 | 49-2 |1-7 |10-2 |0-1 | 26 | 10-0 || Id. ; id. a 427 || 50-8 | 49-2 | 1-6 || 0-1 |0-1 10-0 Id. ; id. 12 425 || 50-7 | 48-4 | 2-3 || 0-2 |0-1 | 22 || 9-8 IGS id. 13 || 29-419 || 49-9 | 48-4 | 1-5 ||0-2 |0-1 | 22 10-0 || Cirro-strati on N. horizon ; rain? 14 420 || 49-3 | 47-7 | 1-6 || 0-2 | 0-1 4 | 6-0 Id. “415 417 || 46-9 | 45-8 | 1-1 || 0-2 |0-1 | 22. 3-0 Id. 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 seud. 425 ||48-6 | 46-7 | 1-9 |} 0-2 |0-2 | 24 2-0 Id. 437 || 53-6 | 50-7 | 2-9 || 0-2 |0-3 | 25 ||—:28:—J]| 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. () 438 || 56-5 | 52-0 | 4-5 || 0-5 | 0-2 28:—:—]| 9-8 || Loose cumuli; cirro-strati. 445 || 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 Tdi; ide id.; cumuli. 451 || 61-7 | 53-7 |8-0 || 0-5 | 0-2 | 26 || 28:26:— || 6-0 Td. ; id. ; id.; cum.-str. 445 || 63-7 | 55-2 | 8-5 || 1-0 | 0-5 | 26 || 27:—:—|| 6-0 || Send and loose cumuli; cumuli; id. ; id. © 441 || 61-3 | 54-0 |7-3 || 0-7 | 0-6 | 22 | 27:—:—|| 40 18s (ois id. ; id. ; id. © 437 || 63-4 | 54-5 |8-9 ||0-7 |0-7 | 22 || 28: 28:— 6-0 Cumuli: patches of cirro-strati; dark to NW., clouds slate-blue. © 442 || 62-2 | 55-2 |7-0 || 1-0 |0-2 | 29 || 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 | 25 || 28:—-:— 9-5 As before, but clearer to W.; rain?—% since last. [str. to NNW.G 457 || 57-0 | 52-7 | 4-3 || 0-4 |0-3 | 24 || 26:—:—J|| 8-0 || Cirro-stratous scud ; eumulo-strati round the horizon. 474 || 55-0 | 51-0 |4-0 || 0-5 | 0-4 | 26 || 26:—:—J]| 9-0 | Send; cumulo-strati; cirri; rain!” 477 || 53-2 | 50-5 | 2-7 ||0-3 |0-1 | 22 ||} 28:—:—|| 9.5 igh id. ; rain! 489 || 52-3 |51-3 | 1-0 ||0-2 |0-1 | 20 ||28:—:—]| 9-8 Id.; id. ; cirrito N.; cloudsslate-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. NW. || 29-511 || 47-0 | 45-3 | 1-7 ||0-0 10-0 | 16 9-0 || Scud and loose cumuli. 514 || 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. 526 || 46-0 | 43-5 | 2-5 || 0-1 |0-0 | 22 || 26:—:—|| 9-0 | Send; cirro-stratous scud ; cir.-str., tinged with red. 534 || 46-0 | 43-3 | 2-7 ||0-1 |0-1 | 18 || 20:—:25]| 8-0 AGES 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. (>) 537 || 47-3 | 44-97) 2-4 || 0-2 |0-1 | 24 || —:24:—} 3-0 || Cirro-cumuli; woolly cirri; cirro-strati. 0) 537 || 47-8 | 45-4 | 2-4 || 0-2 |0-4 | 24 || —:24:—]] 3-0 | Id. ; id. ; id. ; patchesof scud; cum.Q 541 | 51-6 46-7] 4-9 ||0-4 |0-6 | 25 ||26:—:—]| 2-5 || Loose cumuli; cirro-strati; cirri. © 544 | 54-4 | 48-2 |6-2 |10-7 |0-4 | 22 || —:29:— 8-5 || Cirro-stratous scud ; eumulo-strati; cirro-strati. e 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. me 24419. Observation made at 19" 9m, June 25412 6m, A shooting star to NW.., altitude 20°, moving towards SW., inclined to the horizon about 30°. June 254174, Some of the cirro-stratous scud spreading out like branches; dark and undulated to HE. MAG. AND MET. oss. 1845. 3E 202 Hourty METEOROLOGICAL OBSERVATIONS, J UNE 25—28, 1845. THERMOMETERS. WIND. Clouds, Maximum Se. :C.-s.: Ci.,|| Sky i i louded. Wet. | Dift.|| force in [prom mene cloude Species of Clouds and Meteorological Remarks. pt. 728: 5 Cirro-stratous scud ; cumulo-strati ; cirro-strati ; cum. © Seud ; cirro-strati; cumuli. Scud and loose cumuli; cirro-strati. [horizon. © id.; sky greenish on NE. id. ; id. Thick scud ; cum,-strati ; cir.-str.; a shower since last. Cirro-stratous scud ; cirro-strati. Thick seud ; cirro-strati; a slight shower commencing. Cirro-stratous scud ; loose cumulo-strati on horizon. Td. Habs id. Id. ; cirro-strati. Cirro-stratous scud ; cirro-strati. Id. ; cirro-cumulo-strati. ICES cumuli ; woolly and linear cirri. }- id5s id. ; id.; clouds red. Cir.-cum.-str.; dense cir.-str. to E.; cum.-str. to S,, various cirri. Woolly cir.-cum. ; various cirri; cir.-str. seud ; cirro-strati; cum. (s) Cirro-cumulo-strati ; loose cumulo-strati to N. and E.© Masses of scud and loose cumuli ; cirro-cumulo-strati. : Scud and cumuli ; cirro-cumulo-strati. fo) Td. ; id. (>) Id. ; id. ql le Gyr cirro-stratus. (horizon. Thick cir.-str. clouds ; seud and loose cum. ; clouds electric-like near Scud ; cumuli and cirro-stratous cloads. Masses of loose cumuli; dense cirro-stratus and haze. Id. ; id. Id. ; id.; drops of rain. Seud ; rain? Teds id? Id.; dense cirro-stratus ; rain!—? id. ; rain! S>eooosso 9o¢ OofrorrFor = ; Train aine=* Bema ; rain! ; rain! ; rain? ; rain! 5 rain? 3 rain® 3 rain” ; rain? . rain!” ; Tain®? 3 rain” SS Taln-s PR URRAONIDOOND BOOWIanororenNH FH SSSSTTHS wWaAwWOHKAUMAHDHUISHK DHNUNHDHINNY Ee a 225 | 253 | 274 301 || 50-0 | 46.3 w ; cirro-strati ; cirrous mass. Bi BR HEL eBeOoormooroorrnNKF PKK wo 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. Hourty METEOROLOGICAL OBSERVATIONS, JUNE 28—JuLy 1, 1845. 203 THERMOMETERS. WIND. Clouds, Paks Maxi Se. :C.-s.:Ci.,] Sky . 4 METER ; aximum moving Weiouded Species of Clouds and Meteorological Remarks. at 32°. | Dry. | Wet. | Diff. force in /Prom ram 1h, |10™. h in. ° ° ° || tbs. | lbs. | pt. || pt. pt. pt. || 0—10. 7 || 29-325 || 49-8 | 46-3 [3-5 10-9 | 0-3 0 | 30:—:—| 9-9 || Scud; cirro-strati; cirrous mass. 8 347 || 51-7 |47-7 | 4-0 ||0-3 |0-3 | 31 || 30:—:—)|| 9-5 || Cirro-stratous scud; cumuli to S.; cirro-strati. 363 || 49-7 | 45-6 |4-1 || 0-2 |0-2 | 30 | 30:—:— 8-5 || Scud and loose cumuli; cirro-cumuli; cirro-strati. 381 || 44-2 | 42-5 | 1-7 || 0-1 |0-1 | 28 1-0 || Patches of scud and cirro-strati round horizon. 394 || 44-0 | 41-9 | 2-1 ||0-1 |0-1 | 28 0-7 || Masses of scud and cirro-strati on horizon. 408 || 43-7 | 41-7 | 2-0 ||0-2 |0-1 | 26 0-5 || Cirro-strati near horizon; sky very clear. 13]] 29-531 || 59-2 | 52-0 | 7-2 || 2-2 |0-2 | 20 |}22:—:—]] -.... ee cumuli; cirro-strati; slight showers 29-461 || 50-7 | 48-8 | 1-9 || 1-5 | 0-1 | 12 10-0 || Scud and cir.-str.; rain? 436 ||50-9 | 49-9 | 1-0 ||0-3 |0-5 | 16 || 19:—-:—]| 10-0 Id. 426 || 49-5 | 48-8 |0-7 ||0-5 |0-1 | 18 ]|}19:—:—]| 3-0 Id. ; cumuli to W. and§.; cir.-str.; woolly 427 || 50-4 | 49-4 |1-0 || 0-2 [0-2 | 20 || 21 :—| 8-5 Id. ; id. ; id. [cirri. 427 || 50-5 |49-3f/ 1-2 ||0-8 |0-4 | 20 || —:21:—]] 5-0 || Cirro-cumulo-strati; cirro-strati. (0) 434 || 51-8 | 50-2 | 1-6 || 0-8 |0-5 | 20 || —:22:—]| 3-0 ibs id. ; cum.-str.; nimbito S.© 434 || 53-2 | 50-3 |2-9 |/0-7 |0-7 | 17 || 22:—:—1|| 2.5 || Cum. and cum.-str. on hor. ; patches of scud, loose cum., 442 | 54-9 |50-9|/4-0 ||0-8 |0-6 | 20 || 22:—:—|| 2.0 || As before. (0) [and cirro-strati. © 444 || 60-2 | 54-7 |5-5 | 0-8 |0-7 | 18 || 22:—:—|| 6-0 || Loose cumuli; patches of cirro-stratus. Oo 448 ||58-6 | 52-9 | 5-7 || 1-4 |0-7 | 20 ||}21:—:—|| 7-0 Id. ; cir.-cum.-str. ; hazy cirri to S. (=) 443 | 62-1 |56-2 |5-9 || 1-4 |1-3 | 20 |} 21:—:—] 3-0 Id. ; cirro-strati to S. (s) 442 | 60-4 |55-0 |5-4 11-8 |2-0 | 21 ||22:—:—]| 2.0 Id. ; cum.-str. ; masses of cirro-strati. © 446 || 62-7 |55-9 |6-8 ||2-5 | 1-8 | 20 || 21:—: 24 7-0 ides id.; cir.-str.; woolly cirri. (0) 445 || 63-0 |55-4 | 7-6 ||1-5 | 1-5 | 22 || 20:22:—]] 7.5 Id. ; id. ; id. ; id. 443 ||60-1 |55-3 | 4-8 |] 1-8 | 1-2 | 18 | 21:—:— || 9.7 Id. ; id, ; id. ; shower! at 24 307.6 437 ||61-0 |54-8 |6-2 || 1-9 | 1-4 | 21 || 21:—:—|| 9.8 Id. ; id. ; id. ; woolly cirri ; shower! 437 || 59-3 |54-0 | 5-3 || 1-7 |0-8 | 20 || 20:—:—]| 9-5 Id. ; thick scud ; raining to N. 452 || 57-6 |52-8 | 4.8 || 1-4 |0-7 | 22 || 22:—-:—|| 9.8 || Thick seud; cumuli and cumulo-strati to S.; rain! 457 || 52-7 |52-0 |0-7 || 0-7 |0-7 | 20 |} 22:—:—|| 9-8 tds id. 449 || 56-2 | 54-0 | 2-2 || 1-0 |0-6 | 20 || —:22:— | 6.0 || Cirro-cumulo-strati; loose seud ; cirro-strati. 0) 455 || 54-7 | 52-3 | 2-4 11-0 |0-2 | 24 |}19:22:— || 8.0 || Scud; cirro-cumulo-strati ; id. 454 || 54-0 | 52-2 | 1-8 ||0-6 |0-2 | 20 || 19:22:—]) 9.0 Id. ; id. ; id. 472 ||53-8 | 52-0 | 1-8 || 0-4 |0-2 | 19 10-0 Id. 459 || 53-2 | 52-1 | 1-1 ||0-2 |0-4 | 20 10-0 Id.; rain? 29-433 || 53-2 | 51-8 | 1-4 || 0-6 |0-4 | 20 10-0 || Scud. 412 || 53-0 | 51-4 | 1-6 || 9-4 |0-3 | 20 10-0 Td. 387 || 50-9 | 48-9 | 2-0. 0-3 |0-2 | 16 10-0 || Id. 368 || 49-7 | 48-8 |0-9 |} 0-1 |0-1 | 19 9-7 Id. 344 | 50-9 | 49-7 |1-2 |}0-2 |0-0| 8 10-0 |) Id.; rain! 316 || 51-3 | 50-3 | 1-0 || 0-0 | 0-0 8 10-0 Id.; rain®?® 284 | 51-8 | 50-3 | 1-5 || 0-1 | 0-1 8 ]|17:—:—|] 10-0 Id.; cirro-strati; cirrous mass; scud on Cheviot. 219 | 51-6 |50-4 |1-2 |/0-2 |0-0 |} 8 || 16:—:—]} 10-0 || Cirro-stratous scud ; id. ; rain? 163 || 52-1 |50-7 | 1-4 }0-1 |0-1 | 12 | 12:—:—|| 10-0 || Scud; dense cirro-stratus ; rain? 097 || 52-7 |51-7 | 1-0 || 0-9 | 0-8 | 14 10-0 || Scud on horizon ; id. ; rain® 29-040 || 54-5 | 53-2 |1-3 0-5 | 0-5 | 14 | 14:—-:—]] 10-0 || Patches ofscud; id. ; rain?— 28-963 || 56-2 | 54-0 | 2-2 | 2-1 |} 1-5 | 15 ||} 14:—-:—]| 9-9 || Scud; cirro-strati; loose cumuli to SE. 926 ||57-7 | 55-2 |2-5 || 2-5 |2-0 | 18 ]18:18:—]| 8-0 Id.; loose cum. ; cir.-str.; cumuli; nimbi. (s) 880 || 59-3 | 55-0 | 4-3 || 4-0 | 1-8 | 16 ||17:—:—]| 9.8 igh id.; id.; showers occasionally. @ 842 || 54-8 | 53-7 | 1-1 || 3-5 |1-0 | 20 || 18:—:—] 10-0 | Ia; id. ; id. ; id, 794 ||54-2 | 52-2 |2-0 | 3-8 | 1-8 | 20 | 18:—:—]] 10-0 |] Id.; rain? 727 |\52-7 | 51-4 |1-3 || 3-9 | 5-2 | 19 | 19:—:—|| 10-0 Id. ; id. 729 || 52-7 |51-1 |1-6 6-0 [5-3 | 19 || 20:—:—|| 10-0 || Id.; drops of rain. 792 ||53-0 | 50-9 | 2-1 || 4-6 |1-6 | 21 || 23:—:—|| 10-0 Id. ; id, 846 || 52-9 | 50-8 | 2-1 || 2-8 | 1-7 | 22 || 23:—:—|| 10-0 Id.; rain’? 887 ||52-0 | 50-2 | 1-8 || 2-3 |0-9 | 22 ||93:—:—]|| 9-8 Id.; dense mass of cirro-strati; sky to W. 921 || 52-5 | 49-5 |3-0 13-7 | 1-1 | 20 ||\24:—-:—|| 9.9 Id. ; id. 954 || 52-8 |49.4 |3-4 |1-6]1-1 |; 22 ||\94:—:—]] 9-8 Id.; cirro-strati. 991 || 52-6 |49-3 | 3-3 |! 1-4 10-8 | 22 9-8 || Scud and cirro-stratus. 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, JuLY 1—3, 1845. | THERMOMETERS. Winp. Cloud: nen / hase eee Sag | Maximum Se. Crs: Ch. Sky Species of Clouds and Meteorological R k Time. || at 32°. Dry. | Wet. | Diff. i force in | yom ene clouded. |) sete | 1h, 10m, 5 d. he Ti lee 2 ° ll tbs. | Ibs. | pt. |] pt. pt pt. || O—10. 1 13) 29-036 52-7 | 49-9 | 2-8 || 0-6 | 0-4 | 22 9-5 || Seud and cirro-stratus. 14|) 073 | 52-0 | 49-2 |2-8 || 1-0 |0-9 | 23 7-0 || Seud; cirro-strati and cirro-cumulo-strati. 15 | 111 || 52-0 |49.0 | 3-0 | 1-1 |0-5 | 24 ||28:28:—|| 6-5 Id.; cirro-strati ; woolly cirri. 16 149 || 50-7 | 48.3 | 2-4 ||0-7 |0-3 | 22 || —:258:—|] 3.0 || Cirro-strati, tinged with red to NE. 17] 197 || 51-2 | 48-47} 2-8 | 0-7 |0-7 | 23 || —:26:—|| 2.5 || Masses of cirro-strati; woolly cirri and cirro-cumuli. © 18|| 237 | 52-6 | 49.4 | 3-2 11-8 |0-8 | 24 2-0 | Cirro-strati and cirro-cumulo-strati. 19|| 285 ||54-0 | 50-0 | 4-0 | 1-6 | 1-3 | 26 || 24:28 :— 1-0 || Patches of scud and loose cum. ; sheets of cirro-strati. © 20] 332 | 55:3 |50-8 | 4-5 | 1-5 | 1-3 | 22 ]/—:24:—|| 2.0 Cir.-str. scud; cir.-str.; woolly cir. ; patches of seud.© 21 || 374 || 55-4 50-54 4-9 || 1-1 | 1-2 | 22 | —:24:— 15 || Id. ; id.; cumuli to N.; id. 92|| 395 ||56-7 |51-0 |5-7 11-5 | 1-2 | 24 |] —:25:— || 1-5 || Loose cirro-strati; id. ; id. 23|) 441 || 58-0 |51-0 | 7-0 || 1-3 | 0-4 | 20 1-0 | Seud and cumuli round horizon. 2 0} 473 | 59-0 |51-7 |7-3 | 1-5 |0-4 | 23 || 23:—:—|}| 1.5 | Loose cumuli; cumulo-strati; cumuli; cirro-strati. 1|)/ 493 || 60-6 |52.4 | 8-2 0-7 |0-3 | 26 || 23 :—:— 1-5 || Seud and loose cumuli. 2 515 || 60-5 | 51-7 |8-8 | 0-7 |0-7 | 26 || 23:—:—]) 2-5 Id. ; cum.-str. ; cum. ; cir.-str. 3 525 || 60-4 |51-9 |8-5 0-5 | 0-3 | 30 || 23:—:—|| 2.0 | Seud; cumulo-strati; cumuli; cirro-strati; cirri. 4|| 538 || 62-3 |52-6 |9-7 |10-6 | 0-4 | 28 || 23: —: 22 5-0 Id.; woolly cirri; cum.-str.; cumuli; cirro-strati. 5 547 || 62-5 | 52-7 |9-8 |10-6 | 0-4 | 26 || —:—:21 7-0 | Woolly cirri ; cum.-str.; cum. ; cir.-str.; solar halo. 6| 560 | 61-3 |53-77|7-6 | 0.2 |0-0 | 22 ||22:—:20|]} 7.0 || Masses of scud and loose cumuli; woolly cirri. 71\ 571 || 58-3 |52-9 |5-4 |10-0 | 0-0 | 22 || _: 20:— 10-0 || Cir.-str. ; wo. cir. and cir. haze ; masses of cum. round hor. 8|| 583 || 56-8 | 52.41) 4.4 0.0 | 0-0 | 20 10-0 || Ia.; id. ; id. 9 |) 590 || 53-9 |50-9 |3-0 | 0-0 |0-0 | 18 |] —:19:— 9-0 Id. ; adie id. [o) 10 604 || 51-8 |49-8 | 2-0 ||0-0 |0-0 | 18 || 16: —:— 9.9 Seud in patches to SE. ; thick cir, haze and woolly cir. ; sunset very red. 11| 617 ||50-3 | 48-5 |1-8 |]0-0 | 0-0 | 24 8-0 || Scud; cirrous haze; woolly cirri. : 12) 613 || 49-7 | 48-6 | 1-1 | 0-0 |0-0 | 17 10-0 Id. ; id. 13 || 29-613 || 49-6 | 48-3 | 1-3 ||0-0 | 0-0 | 28 10-0 | Scud; cirrous haze. 14|| 600 || 49-6 |48-3 |1-3 |0-.0 |0-0 | 4 10-0 || Ia.; id.; _ cirro-strati, 15 576 || 50-8 | 49-0 | 1-8 || 0-0 | 0-0 4 10-0 || Cirro-stratous scud ; mass of cirro-strati. 16 575 || 50-4 |49-4 |1-0 || 0-0 | 0-0 4 10-0 Id. ; 1s drops of rain, 17 577 || 50-4 | 50-0 |0-4 || 0.0 | 0-0 4 || —:12:—| 10-0 dtr id. ; rain! 18 572 || 51-0 | 50-5 |0-5 || 0-1 | 0-1 3 10-0 | Id. ; id. ; rain! 19 556 | 52-0 |51-3 |0-7 ||0-1 |0-2 | 4 || 4: 9:—|| 10-0 || Misty send; cirro-stratous seud and cirro-strati; rain” 20 544 || 52-4 | 52-0 | 0-4 || 0-2 | 0-2 4 4:—:—| 10-0 ds rain’? 21 533 || 53-0 | 52-5 |0-5 || 0-5 | 0-5 2 || 4:—:—] 10-0 Siely rain”? 22)} 518 || 53-9 | 53-4 |0-5 110-4 10-3 6 || 6:—: —|| 10-0 Td); Seotch mist; rain”? 23 509 || 54-2 | 53-6 |0-6 || 0-6 | 0-5 6 6:—:—| 10-0 Td. ; id. ; rain? 3 0] 484 | 53-6 |53-2 |0-4 0-6 |0-7 | 5 || 4:—:—|| 10-0 Td. ; id. ; rain”? 1 477 || 54-9 | 54-3 |0-6 | 0-7 |0-3 | 3 10-0 || Thick Scotch mist ; objects invisible at half a mile. 2|| 466 || 55-3 | 55-0 |0-3 ||0-4 | 0-2 3 10-0 || Mist; objects invisible at 2 of a mile. 3 458 || 55-0 | 54-5 |0-5 |/0-4 |0-3 | 2 10-0 || Nearly as before. d 416 || 55-6 | 55-0 |0-6 0-4 |0-2 | 3 10-0 || Mist at a mile; clouds homogeneous. 5 391 || 56-6 | 56-3 |0-3 0-5 |0-2] 4 10-0 || Mist ; objects invisible at 4 of a mile. 6 374 | 57-6 |56-9 |0-7 10-4 |0-2 | 4 10-0 || Mist clearing off ; homogeneous mass. 7 363 | 58-8 |57-9 |0-9 | 0-3 | 0-1 3 ||15:16:—|| 9-9 || Cirro-stratous scud ; cirro-cumulo-strati. 8 350 | 57-6 | 57-4 |0-2 ||0-2 |0-2 | 3 || 4,12:16:— || 9-9 || Misty scud; scud; loose cumuli; shower!” since last. 9 342 || 56-5 | 56-4 | 0-1 0-3 | 0-1 4 10-0 || Scotch mist ; objects invisible at } of a mile. 10 314 || 56-4 |56-4 |0-0 || 0-2 | 0-1 3 10-0 || Dense fog; objects invisible at } of a mile. 11 |} 313 || 56-2 | 56-0 |0-2 || 0-1 | 0-0 | 16 3-0 || Scud and haze round horizon. 12 315 || 57-1 |54-7 | 2-4 || 1.9 | 2-0 | 16 0-5 || Small patches of seud and cumuli on horizon. 13 || 29-320 |96-0 | 53-3 | 2-7 ||2.4 |0-8 | 16 2.0 || Seud to W. 14 333 || 54-4 152-1 | 2-3 || 1-7 | 1-2 | 16 2.5 || Send and cirro-strati. 15 || 325 || 54-7 | 50-9 | 3-8 || 1-3 10-5 | 16 9-5 || Seud. 16) 316 | 54-0 |50-7 |3-3 || 2-9 | 1-7 | 16 8-5 Id. 17|| 321 || 55-0 | 50-1 |4-9 |13-3 |} 4.9 | 16 8-0 Td. 18|| 325 | 53-0 | 49.6 |3-4 || 4-5 |5-7 | 16 9-5 | Id. 19) 391 || 52-4 | 50-8 | 1-6 | 4.9 | 2.7 | 18 | 21:20:—]] 9-9 | Id.; cirro-enmulo-strati. 20/| 452 |/54.3 | 51-2 | 3-1 |/3-4 12.0 | 20 |121:20:—]| 9.9 || Ia; 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. The motions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci, (cirrus), are indicated in a similar manner. July 247%. Observations made at 7 30m, ODDOVO0O0000 ~ = in ere a aronigenaamaiaenatet am ens — ee HovurLy METEOROLOGICAL OBSERVATIONS, JULY 3—7, 1845. ; 205 THERMOMETERS. WIND. Maximum 2 Ces. : Ci. Sky Wet. | Digr.|| force in |From clouded. Species of Clouds and Meteorological Remarks. Scud and loose cumuli. Td. IGE? cirro-strati. Id. Id. ; cirro-strati on E. horizon, Id. ; range of cumuli to N. Id. ; id. Id. ; id. Id. ; cumuli ; cirro-strati. Masses of eumuli; 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. OCOOOO00000 OOO Scud 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.© Id. ; cumulo-strati to SSW. A few cumuli on N. and S. horizon ; cir.-str. near hor.© Scud and loose cumuli. Id. ; cumuli. id. id. id. id.; woolly cirri. id. ; id. woolly cirri; cumuli. Woolly cirri; cumuli and cumulo-strati. Sheets of cirri; patches of scud; cumuli; cir.-str. Cumulo-strati to E. and N.; cirro-strati on horizon. Sheets of cir.-str. and woolly cirri; cum.-str. to E. Cirro-cumuli ; woolly cirri and cirro-strati. Cirro-cumulous scud ; woolly cirri and cirro-strati. 10 || 30-003 . - . 5 : : : 5 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. Seud and cir.-str. ; slight showers about 5”. Send; rain!? Id.; rain? Id. Id.; dense fog. Id. ; id. Id. ; id. Id. ; id.; objects invisible at 3 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. Wee aie —! 5 Id.; cumuli to N.; cirro-strati; cirri and haze. —: Id. 5 id. ; id. ; id. 218: : Cirro-cumulo-strati ; id. ; cirri. 8 65-7 | 60-0 | 5-7 || 0- : 218: : Scud; cirro-cumulo-strati; cirro-strati; cirri. (S) (0) OO0000 WOTHAMAR WHE S OO0000 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. MAG. AND MET. oBs. 1845. No bo OMmANWHSUYMhLwWNHeH OM tO 10 wart gH urhrwonwec | | 10) July 29-673 635 645 |] 641 636 628 613 606 Hovurty METEOROLOGICAL OBSERVATIONS, JuLY 7—9, 1845. THERMOMETERS. WIND. Clouds, Maximum Se.: C.-s. Ci. Dry. | Wet. | Diff. sa ae From i ° - 9 lbs. | lbs. | pt. |] pt. pt. pt. 68-2 | 61-3 |6-9 || 0-7 |0-5 | 21 | 19:18: — 68-0 | 60-0 |8-0 || 0-9 |0-8 | 21 | 20: —:— 70-0 | 61-8 | 8-2 || 1-0 | 1-0 | 20 || 18: —:— 67-2 | 60-44/ 6-8 || 0-8 |0-5 | 20 | 16:—:18 63-7 | 58-4 | 5-3 0-5 |0-3 | 22 62:8 |57-7 | 5-1 || 0-4 |0-2 | 22 |—:—:18 59-0 |55-7 | 3-3 || 0-2 |0-1 | 19 | —:—: 18 |57-0 | 54-74) 2-3 || 0-1 | 0-1 | 23 55-2 |53-6 | 1-6 || 0-0 |0-0 | 22 | 53-0 | 52-2 |0-8 || 0-0 |0-0 | 18 | | 52-3 | 51-7 | 0-6 | 0-0 | 0-0 52-0 |51-4 | 0-6 || 0-0 |0-0 | 22 52-0 | 51-6 |0-4 0-0 |0-0 | 24 || —: 18: — 51-4 | 51-0 |0-4 || 0-0 | 0-0 a 52-0 | 51-3 |0-7 0-0 |0-0 | 28 | —-: 18: — 53-6 |52-7 |0-9 |/0-0 |0-0 | 24 | —:18:— 57-0 | 55-0f| 2-0 | 0-1 |0-0 | 22 | —:18:— 60-2 | 57-5 | 2-7 |0'2 | 0-1 | 20" =— : 1g 9— 60-9 | 57-8 |3-1 | 0-0 |0-1 | 19 |} 18: —:— 61-7 | 59-0) 2:7 |0-2 |0-2 | 19 17: —:— 65-2 | 59-8 | 5-4 | 0-4 |0-4 | 19 |} 18: —:— 66-7 | 60-0 |6-7 | 0-5 |0-3 | 19 |20:18:— 57-6 | 56-2 | 1-4 |1-2 |0-4 | 18 | 65-0 | 61-3 | 3-7 | 0-3 |0-7 | 18 || 20: —:— 64-1 | 58-6 |5-5 | 1-3 [1-3 | 19 | 19: —:— 64-6 | 57-6 |7-0 |} 2-1 | 1-4 | 21 }19:—:*— 64-3 |57-3 |7-0 | 1-8 |1-3 | 19 | 63-3 |57-8f/5-5 |1-7 |1-0 | 20 |19:—:— 59-9 | 55-8 |4-1 } 1-0 |0-7 | 21 | —:18:— 58-7 | 55-74) 3-0 } 0-7 |0-5 | 20 | 19:19: — 56-4 | 53-7 |2-7 |0-7 |0-2 | 18 | 53-9 [52-4 | 1-5 |0-6 | 0-1 | 18 | | 53-4 | 52-3 | 1-1 10-2 |0-1 | 20 | 55-4 | 54-3 | 1-1 |0-2 | 0-1 | 19 | 55-3 | 54-1 |1-2 | 0-5 |0-1 | 19 53-8 | 52-4 | 1-4 |0-2 |0-1 | 23 | 53-0 | 52-0 |1-0 | 0-1 |0-0 | 24 |} 29:—:— 54-0 |52-6 | 1-4 |0-4 |0-4 | 22 | —: 92: — 54-3 |52-3 |2-0 0-6 |0-5 | 22 || — :23:— 54.0 |52-3 |1-7 10-3 |0-1 | 21 |.92:293:— 56-0 | 53-47/2-6 |0-4 |0-6 | 22 | 99:—:— | 57-7 ae 3-0 | 1-2 |0-7 | 21 |! 92:—-:— 159-6 | 55-3 | 4-3 | 1-0 | 1-0 | 21 | 23 :—:— | 60-8 | 55-5 |5-3 | 1-6 |1-8 | 21 93:92: — 163-0 | 57-4 |5-6 || 1-3 |0-7 | 20 |} 229:—:— | 62-6 | 56-9 |5-7 | 1-1 |2-0 | 20 |.23:—:— 66-7 |60-3 |6-4 | 1-8 |1-0 | 19 | 22:—:- | 62-1 | 56-1 |6-0 | 2-2 |1-8 | 20 | 23:—:— 60-0 |56-3 | 3-7 || 2-6 |1-7 | 20 | 23:—:— 158-0 | 54-8 | 3-2 12-6 |1-6 | 21 |22:—:— 160-3 | 55-5 |4-8 |3-8 |1-8 | 22 |21:23:— |58-6 | 53-9 |4-7 | 3-0 |2-5 | 22 | 21:23; — |55-9 | 52-7 |3-2 |2-1 |0-7 | 21 | 23:—:— 55-4 | 52-3 | 3-1 | 1-3 |0-5 | 22 | 23:—:— )53-7 |51-8 | 1-9 || 1-4 |0-5 | 22 |} —:22:— 53-2 |51-4 |1-8 || 0-8 |0-4 | 22 | —:22:— | | | | || || | Species of Clouds and Meteorological Remarks. Seud; cir.-cum.-str.; cir.-str.; sheets of cir. ; solar halo.@ Scud and loose eumuli; cirro-strati; cirri ; id © Loose eumuli; woolly cirri to SE. e Id. ; woolly cirri. fo) Id. ; id. (5) Woolly cirri ; loose cumuli ; cirro-strati. (0) Tks cumulo-strati ; cumuli ; cirro-strati. ©] Id. ; id.; id. Seud and cirro-strati. Scud, cirro-strati, and cirri. Seud, cirro-strati, and cirri. Cirro-strati, cirrous haze, and patches of scud. Cirro-stratus, cumulo-strati, and cirrous haze to NE. Cir.-str. and cir. haze ; clouds tinged with red to NE. Id. ; drops of rain. Cirro-stratous scud ; cirro-strati. Id. ; id. 2) Id. ; id. Seud ; cumuli ; cirro-strati; rain®® Id.; cumulo-strati ; cirro-strati. Td. ; id. ; id. Id.; cirro-cumulo-strati ; cirro-strati. Nearly homogeneous cirro-str. scud and cir.-str. ; rain Scud ; cumuli ; cirro-strati ; cirri. Hae) dad. [o) | LG BG re id. ; nimbi. fo} | 7s DCm mes Oey id. ol Loose cumuli; id. ; id. fo} | Cirro-stratous scud ; masses of scud and loose cumuli. | Thick scud ; sheets of cir.-str, ; cum.-str. on NE. hor. ; drops of rain. Seud to W.; cirro-strati; nimbi and cum.-str. to SE. Cirro-strati, cirri, and cir. haze; masses of loose cum. | Seud ; cirro-strati ; rain!” | Mele id. , Seud ; cirro-strati. Id. ; id. Seud ; cirro-cumulo-strati ; cirro-strati. Cirro-str. seud ; cirro-strati; clouds tinged red to E. iid: j id. ; woolly cirri. Smoky stud ; cir.-cum.-str. ; id.; cirro-strati. © Thick send ; cirro-strati. } Seud ; loose cumuli; cirro-strati. | | Id. ; id. ; id. [cirri to W. © { Tay; id. ; id.; —_cir.-cum.-str. ; mottled } Id. ; id. ; id. [rain. ©] Id. ; id. 3 woolly cirri and cir.-str. ; drops of } Tay; id.; cirro-strati. (-) Id. ; id. ; id. oe} Id. ; id. ; id.; shower? at 2" 40™-@] Id. ; id. ; id. ; slight passing shower. | Id.; id. ; id.; occasional slight showers. Id.; cirro-cumulo-strati ; cirro-strati. (S| Id. ; id. q Td.F3 id. ; id. Cirro-cumulo-str. ; cir.-str. scud ; eirro-strati; cirri. Of} a Id. ; id. line lying NNW. to SSE. Hourty METrEoROLOGICAL OBSERVATIONS, JuLy 9—11, 1845. 207 | 1 Ww 4 HERMOMETERS. IND. d Clouds ” i c.: U.-S8,:01., « . uA oor Dry. | Wet. | Diff. ares oe | PovaRE Parent Species of Clouds and Meteorological Remarks, 1%,| 10m oo in. io . 2 Ibs. lbs pt. pt. pt. pt. 0—10. 29-516 | 52-0 | 50-6 | 1-4 | 0-9 | 0-2 | 22 || 22:—:— | 8-0 || Smoky seud; cirro-stratous scud ; cir.-cum.-strati. 499 || 52-6 |51-7 | 0-9 || 0-4 | 0-2 | 18 9:5 || Nearly as before. 29-484 ||52-6 | 51-6 | 1-0 || 0-3 |0-2 | 18 9-5 || Scud; cirro-stratous scud ; cirro-strati; cirri. 469 | 52-7 |51-6 | 1-1 || 0-2 | 0-0 9-9 || Sheet of cirro-strati; sky on N. horizon. 461 || 52-3 | 51-6 |0-7 || 0-0 | 0-0 | 18 9-5 || Cirro-stratous scud ; cirro-strati radiating from SSE. 16 448 || 52-7 | 52-0 |0-7 ||0-1 | 0-1 | 18 |} —:22:—]} 9-5 Td. ; id. 17 444 || 53-3 | 52-3 | 1-0 || 0-2 | 0-0 —:21:—|| 9-5 Id.; id. 18 439 || 54-6 |53-4 | 1-2 | 0-0 | 0-0 | 18 | 22:—:—| 9-8 || Smoky and cirro-stratous scud ; cirro-cumulo-strati. 19 430 || 57-7 | 55-8 | 1-9 || 0-0 | 0-0 22:—:—|| 9-8 || Seud; cirro-strati. Ce) 20 426 || 58-9 | 55-8 | 3-1 ||0-0 |0-0 | 28 || 22:—:— 9-5 fat id. Se 21 424 || 60-1 |55-0 |5-1 || 0-0 | 0-0 0 || 25:22:—|| 3-0 || Loose eumuli; cirro-strati and cirro-cumulo-strati. © 22 421 || 62-5 | 56-2 | 6-3 || 0-0 | 0-0 25 :22:— 8-5 Td. ; id. 23 418 || 65-5 |58-5 | 7-0 ||0-1 | 0-1 | 28 || 24: 21 :— 9-5 Id. ; id. e@ 0 414 || 68-0 | 60-0 | 8-0 |}0-1 | 0-2 | 29 || 21:—:— 9-0 Gs id. e 1 406 || 67-3 | 58-5 | 7-8 ||0-1 |0-0 | 28 9-8 dey; ids woolly cirri. 2 406 || 65-8 |57-2 | 8-6 ||0-3 | 0-2 | 28 || 20:—-: — 9-5 Id. ; cirro-strati ; woolly cirri. @ 3 400 || 67-3 | 58-9 | 8-4 || 0-2 |0.2 | 31 || 24:22:—]) 9.8 ids cir.-str. and cir.-cum.-str; woolly cirri. 4 394 || 66-4 | 57-4 |9-0 10-4 10-3 | 25 || 21:—:—]| 8-0 TG Ue woolly cirri ; cirro-strati. e 5 383 || 66-3 | 57-3 | 9-0 || 0-4 | 0-1 | 28 || —:21:—|| 9-0 || Cirro-cumulo-strati; cirro-strati ; cirri; cumuli. (>) res 379 || 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 ig 385 || 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. © cS 383 || 61-3 | 56-14) 5-2 || 0-2 | 0-1 | 28 || 25:22:—] 8-2 |! Cum.-str.; cir.-cum. ; cir.-str. ; hazy on horizon. © en) 385 || 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. )) 1 391 || 55-1 | 52-2 | 2-9 10-0 |0-0 |} 21 || —:25:—|| 9-0 as: cirri and cirrous haze. % 390 ||53-5 | 52-2 | 1-3 | 0-0 |0-0 | 18 8-5 || Cir.-str. seud ; cirro-strati and cumuli on horizon. 389 || 53-6 | 52-0 | 1-6 ||0-0 | 0-0 | 20 9-0 Id. 29-387 || 51-5 | 50-4 | 1-1 || 0-0 | 0-0 0 5-0 Id. 386 || 50-8 | 49-6 | 1-2 || 0-0 | 0-0 | 24 . 8-5 || Cirro-cumulo-strati and Girro-strati. 386 || 49-6 | 48-4 | 1-2 ||0-0 | 0-0 | 16 5-0 || Scud; cir.-cum. ; cir.-str. [tinged red to NE. 388 || 45-8 |45-3 | 0-5 |/0-0 | 0-0 | 22 2:5 || Id.; id. ; id. ; cir. haze on hor.; upper clouds 398 || 46-8 |46-0 | 0-8 || 0-0 |0-0 | 18 || 0:28:—|| 9-5 || Thin seud ; cirro-cumulo-strati. 401 || 50-3 | 49-5 |1-0 || 0-0 | 0-0 | 22 1:—:—] 10-0 Id. ; cirro-strati. 412 || 52-8 | 51-3 | 1-5 ||0-0 | 0-0 | 26 2:—:—| 10-0 | Id; id. 418 || 55-8 | 53-0 | 2-8 | 0-0 | 0-3 2 3: O:—]| 9-9 | Id. ; eirro-cumulo-strati. 423 || 55-6 | 52-8 | 2.8 || 0-4 | 0-6 0 2 oe 9-9 Id. ; id. 436 | 54-0 | 52-9 | 1-1 | 0-6 | 0-6 8 208 2:— || . 90 Id. ; id. ; cum.; cir-str.; shower' lately. 448 || 56-4 | 53-2 | 3-2 || 0-8 | 0-8 3 || 4:—:—|| 10-0 || Seud and ecirro-stratous scud. e 461 || 53-3 | 51-2 |2-1 || 1-3 |0-6 2 3:—:—]| 10-0 || Seud; drops of rain. 460 || 55-7 | 52-0 | 3-7 || 0-9 | 0-6 4 3 328): — 9-0 Id. ; cirro-cumulo-strati; cirro-strati. 460 || 56-7 | 52-2 | 4-5 ||0-8 | 0-6 + 4:28:— 9-5. || Id; id. 464 || 57-4 | 53-0 | 4-4 || 0-6 | 0-3 A 93)s— 9-0 Ids; id. ; loose cum. ; cir.-str. (s) 476 ||57-5 | 53-3 | 4-2 || 0-6 | 0-4 4 ee 9.8 Adis id. 487 ||56-0 |51-8 | 4.2 | 0-4 | 0-3 3 4:—:—}|| 10-0 Id.; mass of cirro-strati. 500 || 54-1 | 51-1 | 3-0 | 0-3 | 0-1 4 0:—:— 9-7 | Scud and dense cir.-str.; sky to E. ; drops of rain. 503 || 54-0 | 51-2 | 2-8 || 0-1 | 0-1 3 || 0:28:—|| 10-0 || Scud; dense cirro-stratus ; drops of rain. 514 || 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. 527 | 52-1 | 49-9 | 2-2 ||0-0 |0.0 | 4 || 28:28:—]} 10-0 | Thick send and cir.-str.; very thick and dark to W. 543 | 50-8 |} 49-2 | 1-6 || 0-0 | 0-0 6 || 27:25:—| 9-0 | Seud; cirro-strati; drops of rain. 552 |! 50-2 | 49-1 | 1-1 || 0-0 | 0-0 7 10-0 Id. 562 | 50-2 | 49-6 |0-6 |/0-1 | 0.0 | 20 10:0 || Id. || 29-571 | 49-8 | 49-1 | 0-7 ||0-0 | 0-0 | 30 10-0 || Scud; rain® 578 | 48-2 |47-5 | 0-7 | 0-0 | 0.0 0 10-0 Id.; rain! 580 | 47-8 |47-5 |0-3 |/0-1]0-0| 9 10-0 || Id.; cirro-strati; sky to W. 596 | 45-9 | 45-7 | 0-2 || 0-0 | 0-0 5-0 || Cirro-cumulo-strati ; cirro-strati. 608 | 45-4 | 45-2 | 0-2 |!0-0 | 0-0 —:28:— 8-0 || Cirro-stratous seud ; cumuli; woolly cirri. i 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. July 104 2%. Observation made at 2h 20m. 208 Hovurty METreoroLoGicAL OBSERVATIONS, JuLY 11—14, 1845. Ee ee | a ¥ THERMOMETERS. | < WIND. Clouds, | Gott. || Baro- epee Sc. : C.-s. : Ci. | sk Mean || METER Maximum pacers aed Species of Clouds and Meteorological Remarks. Time. || at 32°. || Dry. | Wet. | Diff. force in |From ag | i { | jh, ea | 1 atrhs in. ° ° ° ibs. | Ibs. | pt. |] pt. pt. pt. |} 0-20. 11 18 || 29-619 || 47-0 | 46-0 | 1-0 0-0 |0-0 | 25 6:297:—|| 9-5 Smoky seud ; cir.-cum.-str.; cir.-str.; cir.; clouds very troubled like. 19 634 |\48-0 | 47-2 |0-8 | 0-0 | 0-0 2:—-:— | 10-0 || Loose scud ; dense cirro-strati. - {slowly. @ 20 646 || 51-4 | 49-1 | 2-3 /0-1 |0-0 6 ||6, 2:28:— 9-8 || Loose ragged scud; loose cum. scud; cir.-str. moving 21 665 || 50-6 |48-5 | 2-1 0:0 | 0-0 0:28:—¥ 10-0 1s We sheets of cir.-cum.-str. and cir.-str. 22 || 666 || 51-9 | 49-2 | 2-7 | 0-1 | 0-0 0 | 28: 28:— 9-7 || Scud; loose cumuli; cirro-strati. 23 664 ||55-8 | 53-6 | 2-2 |/0-1 |0-1 | 26 | 28: —:— 3-0 || Loose cumuli; cirro-strati to SE. 0} 0 659 | 56-3 |52-2 |4-1 || 0-3 |0-0 | 30 || 28:—:—] 3.5 Id. ; nimbus to W. fo) | 1]| 655 || 58-0 | 53-2 |4-8 || 0-3 |0-1 | 24 | 29:—:—| 5-0 tdi; cumulo-strati to S. (2) 2 659 || 59-7 |53-0 |6-7 |\0-5 |0-4 | 24 75 Tae; id. fo) 3 || 651 || 60-5 | 52-0 |8-5 |/0-4 | 0-5 26 |/26,29:—:— |] 5-0 Loose cum., acted on by different currents ; cirro-strati to W. (0) h 4 683 || 60-9 |53-3 |7-6 ||/0-6 |0-6 | 28 || 28:— :— 9-0 || Loose eumuli; cumulo-strati; linear cirri; cirro-strati. 5 | 683 | 53-0 |50-3 |2-7 || 0-7 | 1-3 6 || 25 :—:— 9-8 Thick dark scud and cum, ; cum.-str.; cir.-str.; shower? 10™ ago. 6] 684 || 52-3 | 50-4 | 1-9 0-2 | 0-1 6 ||25:—:— | 9-0 || Send and loose cumuli; cirro-strati; cirri. 7\| 692 || 55-1 |52-0 [3-1 0-1 ]0-1 | 18 |} 25:—:28) 8-5 Thick seud; woolly cir. moving rather quickly ; cir.-str. 8|| 700 || 54-4 |50-0 | 4-4 || 0-3 | 0-2 0 | 27:—:27)| 9-9 || Seud; thick woolly cirri; cirro-strati. 9 | 708 || 50-4 |49-3 | 1-1 ||0-1 |O-1 | 25 |/—: 27:— | 9-0 || Cirro-cumulo-strati; cirro-strati; cirri. 10 712 || 49-0 | 48 2 |0-8 0-1 |0-1 | 18 | 27:— =) 10:0 || Seud; dss id. 11|| 712 ||48-6 | 46-3 | 2-3 |/0-1 |0-0 | 18 || —:28:—|| 88 Cirro-strati ; cirro-cumuli; cirri. 12)| 709 || 46-2 | 45-3 | 0 9 ||0-0 |0-0 | 20 | 9-8 || Cirro-cumulo-stratus ; cirro-strati. : i | Sunday—Dense cirro-stratus and scud; rain occa- 1 29-622 || 59-8 |55-0 |4-8 0-3 |0-1 | 18 | seeeee 1 sionally after 2. q 13 || 29-526 || 52-3 | 50-8 | 1-5 | 0-5 | 0-3 | 20 || 9.7 || Cirro-stratus and cirro-stratous scud; sky to N. 14|| 528 | 51-7 |50-1 | 1-6 |\0-3 |0-2 | 20 | | 9-7 Id. ; id. t 15 528 ||\52-4 | 50-7 | 1-7 || 0-4 |0-3 | 21 9.7 || Thick scud; cirro-strati. b 16) 531 ||52-9 |50-8 |2-1 ||0-4 |0-4 | 21 || —:27:— | 9-8 || Cirro-stratous scud ; cirro-strati. } 17 |\ 544 || 52-8 |51-0 | 1-8 || 0-2 |0-1 | 24 | —:27:—|| 10-0 Id. ; id. 18|| 570 || 51-4 |50-0 | 1-4 0-5 |0-4 | O | 1:—:—|| 10-0 Thick misty scud ; drops of rain. 19 607 ||49-3 |48-6 |0-7 0-7 |0-3 | 2) 1:—:—|| 10-0 Id. ; rain! in fine drops. 20 638 | 49-7 |48-3 |1-4 0-5 |0-4| 2) 2: 0:28|| 9-8 || Misty seud; cirro-stratous scud; cirro-strati ; rain’? 21 660 || 51-2 |48-3 | 2-9 | 0-6 |0-6 LD | 238 +—~< 9-8 || Cirro-stratous scud ; cumuli to N. id. 22 677 || 55-1 |49-9 |5-2 || 0-7 | 0-7 1 131:29:—J|| 9-5 || Cirestr. seud; cir-cum.-str.; cum. on Cheviot ; woolly cir. H 23 692 || 56-3 |51-5 |4-8 ||0-5 |0-3 1 |\30:—: = 8-0 || Scud and loose cumuli; cirro-strati. 0 707 || 56-8 |51-8 |5-0 0-7 |0-5 | 30 || 29:—:—] 7-0 || Loose cumuli ; cumulo-strati and nimbi ? (0) 1 717 \|\58-6 |52:8 |5-8 ||0-9 |0-7 | 28 ||29:—:—|| 9-0 id,; id, el 2 714 ||60-1 | 54-0 |6-1 || 1-1 |0-7 | 30 |) 29:—:— 8-5 Id. ; id. eo} , 3 || 735 ||58-8 |54-3 |4-5 || 1-7 |0-3 | 30 |29:—:—]) 8-0 Id. ; id.; rain falling to N.O} 4 748 || 56-3 |52-1 |4-2 || 1-1 |0-2 | 29 | —:29:—|| 6-5 || Cir.-cum_str.; woolly cir. ; eum. and nimbi round hor. ©) | | 5 762 || 52-7 |52-5 |0-2 ||1-5 |0-3 | 30 |—:29:—]) 7-0 || As before ; passing showers. [rainbow to E. ©} 6 783 || 54-4 |50-4 |4-0 || 2-7 | 1-2 3 ||\30:—:—| 8-5 || Thick scud and cumuli, falling in rain to SE., cum.-str.; cir--str.; q 4! 797 | 56-0 | 51-67) 4-4 || 0-5 |0-3 4 |\0,30:28:—| 9-5 || Scud and loose cumuli; cirro-strati. 8], 811 | 53-1 | 50-54) 2-6 || 0-6 |0-1 | 30 | 31: 31:— 9-7 || Scud and cirro-strati. 9) 833 || 50-9 |49-5 | 1-4 | 0-2 |0-0 | 22 0: O0:— 9-0 Id. 10 | 847 ||50-3 |48-6 | 1-7 | 0-1 |0-0 | 26 | 30:30: — 9-8 Id. 11 859 || 49-0 | 47-5 | 1-5 0-2 |0-1 | 25 8.5 Id. dT 12|| 870 || 47-9 |45-9 | 2.0 | 0-5 |0-1 | 26 3-0 Id. ) 13 || 29-877 || 47-0 | 45-7 |1-3 || 0-2 |0-1 | 26 2-5 || Seud and cirro-strati. 14 877 ||46-0 |44-4 | 1-6 ||0-1 |0-0 | 25 1-5 Id iF 15) 873 || 44-2 |42-7 11-5 |/0-1 |0-1 | 26 || 30:—:— 1-5 Id f 16 877 || 44-8 |42-7 |2-1 |/0-1 |0-0 | 30 || 30:—:— 6-0 Id Tl 17 877 || 47-0 |44-5 |2-5 0-2 |0-1 | 28 ||31:31:— | 9-0 || Scud; cirro-cumulo-strati ; cirro-strati. 1 18|| 885 || 48-7 |45-5 | 3.2 ||0-1 |0-2 | 27 || —:30:—] 98 Dense mass of cirro-stratous scud and cirro-strati. | 19|, 889 | 50-4 |46-8 |3-6 |.0.2 |0-2 | 29 |—: 0:—| 9-9 || Cirro-stratous seud. 1 | 20|| 893 || 51-1 |47-2 |3-9 |/0-3 | 0-1 | 30 || —: 0:—] 10-0 Id. | 21 904 || 52-0 | 47-3 |4-7 || 0-4 |0-6 | 30 || —:31:—| 10-0 Id. ; very dense. | 22 398 || 54-6 |48-9 |5-7 0-5 |0-3 | 31 | 31: —:—| 9-9 || Scud; loose cumuli; cirro-strati. | 23 | 896 || 56-0 | 49-0 |7-0 ||0-9 10-7 | 30 0:—:— 9-8 1G he 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. The motions of the three strata of clouds, Sc. (scud), ©.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. July 122.45, The reading of the barometer is somewhat doubtful. July 1446", The wet bulb found partially dry ; the difference previously to wetting it was 2"7. 7. A new piece of silk put on the | wet bulb. f = pa = SCUMDNANKRWNeK OF ee noe o> he) _ NIGaUR® NHK SeCMmI Sm HMawWHHOS \) ais, = ms, SWS) 7 Bako- METER at 32°. in. 29-889 868 860 848 838 829 833 832 836 845 850 854 853 29-845 835 829 826 824 825 $20 814 804 802 786 779 770 754 738 726 726 716 722 715 710 711 708 705 29-701 689 676 672 672 668 671 670 668 667 661 662 664 661 660 661 662 667 683 Hourty METEOROLOGICAL OBSERVATIONS, JULY 15—17, 1845. 209 THERMOMETERS. WInD. Ginnds: - Se.:C.-s.:Ci.,|| Sk A ‘ Dey. | Wet, (bier Sei ag fall vin g as Species of Clouds and Meteorological Remarks. 14, | 10™, no ° 2 © |l ibs. | Ibs. | pt. |] pt. pt. pt. || o—10. 56-0 | 48-7 | 7-3 || 1-0 | 0-4 0 —:—|| 8-5 || Loose cumuli and cirro-stratous scud. 59-9 | 51-3 | 8-6 || 0-7 | 0-8 0 | 7-0 || Loose cumuli. 0) 59-7 | 50-9 | 8-8 | 1-5 |0-7 | 31 || 30:—:— 7-0 Td.: cirro-strati. (o) 61-1 | 52-0 | 9-1 |0-5 |0-7 | 4) 29:—:—|] 7-0 Id. ; id. 59-7 | 52-2 | 7-5 || 1-3 | 0-3 230 2——=— | 165) Id. ; id (0) 59-0 | 51-74) 7-3 || 0-4 | 0-2 2 2-0 Id. ; id. (o) 56-9 | 50-3 |6-6 ||0-7 |0-4 | 2 || 29:—:—] 2-0 Id. ; id. (0) 57-4 | 50-7 | 6-7 ||0-5 |0-3 3 || —:31:— 8-0 || Cirro-cumulo-strati ; cirro-strati. (0) 54-0 | 48-7 | 5-3 ||0-5 |0-2 | 6 | —:31:—|| 3-0 Id. ; id. 0) 51-3 | 48-01) 3-3 || 0-3 | 0-1 4 ||\—:31:—| 4.0 Id. ; id. 0) 49-8 | 47-6 | 2.2 ||0-1 |0-0 4 || 2:30, 31:— 3-0 || Patches of scud ; dark ramified cirro-stratus to N.; cir.-cum.-str. »)) 47-7 | 46-2 | 1-5 | 0-1 |0-0 | 20 || 0:28:—)| 9.0 || Loose seud; cirro-cumulo-strati. »)) 48-3 | 46-9 | 1-4 ||0-0 | 0-1 | 22 || 0:—:—J]| 10-0 || Dense seud. 48-2 | 46-8 | 1-4 || 0-1 |0-0 | 20 10-0 || Dense seud. 47-8 |46-7 | 1-1 ||0-0 |0-0 | 22 9-5 || Scud; cirro-cumulo-stratus ; sky in zenith. 47-5 | 45-1 | 2-4 |/0-0 |0-0 | 30 || —:30:—|| 8-0 || Cirro-stratous scud ; cirro-cumuli; cirro-strati. 44-8 |44.0 | 0-8 ||0-0 | 0-0 | 24 || —:29:—|| 9.0 fats id. 44-0 | 43-1 | 0-9 ||0-0 |0-0 | 20 || 30:31:—|| 5-0 Id. ; id. 46-7 | 45-0 | 1-7 ||0-2 |0-1 | 25 |}30:—:—|| 8-0 Id. ; id. fo) 48-7 |46-4 | 2-3 10-2 |0-1 | 31 ||} 29:—:— 3-0 ide cumulo-strati to N. ; cirro-strati.© 50-4 | 46-9 | 3-5 ||0-1 |0-0 | 26 || 30:—-:—]| 6-0 || Loose cumnli; cirro-strati. (2) 53-1 | 48-2 | 4-9 | 0-0 | 0-0 | 28 | 29:—:—|| 6-0 Id. 54-2 | 47-5 |6-7 |/0-1 |0-1 | 28 ||29:—:—|| 6.0 Id. (0) 56-4 | 50-4 |6-0 | 0-2 |0-1 | 18 | 29:—:—] 8-5 Td. 60-7 | 53-4 |7-3 0-2 |0-2 | 12 | 29:—:— || 8.0 Id. =) 59-1 | 52-5 |6-6 |}0-1 |0-1 | 14 | 24:26:—)]) 6-0 || Thin scud; loose cumuli. (0) 59-8 | 51-6 | 8-2 || 0-2 | 0-1 8 | —:25:—|| 6-0 || Cirro-cumulo-strati; loose cumuli; woolly cirri. (0) 63-4 | 55-0 | 8-4 || 0-1 |0-1 | 14 || 24:—:—|| 7-0 || Loose cumuli; woolly cirri. 59-6 |53-8 | 5-8 0-4 {0-4} 3 | 24:—:30|) 5-5 Id. ; band of woolly cirri lying from NNW. to SSE.Q 57-3 | 51-7 | 5-6 110-6 | 0-9 Co —— 5-5 Band of cirrus from NW. to zenith; cum. to S.and N.; haze on hor. © 54.9 50-0T 4.9 |0-8 |0-6 423) —— «OR 70 Loose cumuli; strips of linear and woolly cirri rad, from NW. 8 55-2 150-2 15-0 ||0-8 | 0-3 4 || 21:23:28 6-5 Scud moving rather quickly ; loose cumuli; cirri as before. 52-9 |49-41/3-5 || 0-4 | 0-1 4 || 22:24:27) 7-5 Id. ; id. ; id. (0) 50-1 | 48-3 | 1-8 ||0-1 |0-0 —— +94 - 97 7-0 Cirro-stratous scud ; cirri rad. from NW by W.; cir. haze on hor. »)) 48-6 | 47-6 | 1-0 | 0-0 |0-0 | 20 || 22:—:27|| 5-0 || Loose seud; cirri as before. } 47-0 | 46-5 |0-5 || 0-0 |0-0 | 16 6:0 || Woolly cirri. } 45-7 | 45-4 |0-3 | 0-0 |0-0 | 24 7-0 || Cirri and cirrous haze. Me 44-2 | 44-0 | 0-2 ||0-0 |0-0 | 18 4.0 || Cirri and cirrous haze. 42-0 |41-8 |0-2 ||0-0 |0-0 | 7 4-0 || Fog, objects invisible at about 300 yards ; cirri. 42-5 | 42-3 | 0-2 || 0-0 | 0-0 9 || —: 26: 26 8-0 Woolly cirri and loose cirro-strati; fog, objects invisible at 250 yards. 44.2 | 44-0 |0-2 || 0-0 |0-0 | 20 9-7 || Cirro-strati and cirrous clouds; hazy; fog-bank to E. 46-4 46-0F 0-4 || 0-0 | 0-0 2 || 6, 14:—:— 9-7 A few patches of scud, in different currents ; cir.-str. and cir. haze; 47-9 | 47-0 | 0-9 || 0-0 | 0-0 | 26 || —:20:—]| 9-8 || Dense cirro-stratus. (faint rainbow. 49-3 | 48-3 |1-0 0-1 |0-0 | 0 10-0 || Loose seud in patches ; sheets of cir.-str. ; drops of rain. 51-7 | 50-2 | 1-5 | 0-0 | 0-0 4 10-0 || Thin scud ; sheets of cirro-stratus ; drops of rain. 53-2 | 51-74) 1-5 | 0-1 | 0.0 oe L0——= 1 10:0 Id. ; cirrous mass; rain! 54-7 | 52-5 | 2.2 || 0-1 |0-0 4 10-0 Id. ; id. ; rain"? 56-5 |53-7 |2-8 | 0-1 |0-1 | 4 | 12:—:—J]| 10.0 || Seud; cirrous mass; rain”? 58-1 | 55-3 | 2-8 |/0-0 |0-0 | 18 || 16:—:—]| 10-0 Id. ; id.; + fine rain”! 57-7 |56-3 | 1-4 | 0-2 |0-1 | 14 | 15:—:—|| 10-0 || Ia; id. 58-8 |57-0 | 1-8 | 0-1 |0-0 | 17 10-0 || Ia; id. ; fine rain”? 60.0 | 57-8 | 2-2 | 0-1 | 0-0 117 :—:—|! 10-0 Id); id. 59-S | 57-7 | 2-1 /0-1 0-0 4 || 20:—:—|| 10-0 Id. ; id. 60-8 | 58-4 | 2-4 | 0-1 | 0-0 4 | 22:—:—|| 10-0 || Thick seud; cirrous mass; rain’? [of rain. 60-0 | 58-1 | 1-9 | 0-3 |0-5 | 22 | 22:—:—|| 9-9 || Thick scud to N. and W.; cir.-str.; sky to S.; drops 58-4 |57-3 |1-1 | 0-3 |0-0 | 22 | 23:—:—|| 10-0 || Seud and cir,-str. ; occasional heavy showers since 64. Tuly 154 10» 9m, MAG. AND MET. ogs. 1845. A shooting-star of the first magnitude to S by W., moved from altitude 35° to near horizon. _ duly 16264. The simple lines of cirri lie at right angles to the strips. The surface current is from NE., the scud current, which is about 2500 feet high, is from SW by W.., the loose cumuli, perhaps about 3500 feet high, are from W by 8., and the cirri, probably many thousand feet high, are from NW. July 162 204, Observation made at 204 5™, July 1745%15™. A thunder-shower—, the drops being large ; clouds thick and black to W. 36 10 Hovurty METEOROLOGICAL OBSERVATIONS, JuLy 17—20, 1845. THERMOMETERS. | WIND. Clouds Gott. || Bano- | lingers Se.: C8. Ci., || Sk | Mean || METER Maximum pS Maat || tee Species of Clouds and Meteorological Remarks. | Time. | at 32°. |) Dry. | Wet. Diff. | force in /Pyom a 4 5 | | 1». }10™, : | a. db in. ° * a Ibs. | Ibs. | pt. |] pt. pt. pt. 0—10. \ 17 8 || 29-691 | 56-1 |55-1 | 1-0 | 0-4 |0-3 | 22 10-0 || Seud and cirro-stratus. 9 693 || 55-2 | 54-4 |0-8 | 0-3 | 0-1 | 22 | 22:—:— 9-8 Td. 10 702 || 54-7 |53-6 | 1-1 || 0-2 |0-2 | 22 || 24:22:—|| 10.0 || Scud; cirro-strati. 11 710 || 54-7 |53-4 | 1-3 |} 0-2 |0-1 | 22 9-8 Id. ; cirro-cumulo-strati. 12 721 || 53-8 | 52-4 | 1-4 10-2 | 0-1 | 22 10-0 Id.; cirro-strati ; drops of rain. 13 || 29-730 || 53-2 | 52-0 | 1-2 || 0-1 | 0-0 | 20 10-0 || Seud; cirro-strati. 14 738 || 52-3 |50-9 | 1-4 || 0-2 |0-1 | 20 10-0 Id. ; id. ; cirro-cumulo-strati. 15 || 740 || 51-4 |50-7 |0-7 | 0-1 |0-0 | 23 | 98 | Ja; id; id. 16 742 |/51-0 |}49-5 | 1-5 ||0-2 |0-1 | 22 |} 95:—:— 9-5 ids id. ; id. 17 752 || 50-4 | 49-5 |0-9 ||0-2 |0-1 | 20 | 24:—:25] 9.5 Thin seud ; woolly cirri ; cirro-cumulo-strati ; cir.-str. 18 761 | 52-0 |50-6 | 1-4 || 0-2 |0-3 | 20 || —:26:—J] 9-8 || Cirro-stratous seud ; id. ; id. 19 770 || 55-5 |53-0 |2-5 0-3 |0-4 | 22 || 296:28:—] 9-9 || Scud; cirro-cumulo-strati ; cirro- Pars 5 cirri. 20 784 || 55-4 | 52-4 |3-0 |] 0-8 |0-2 | 23 || 96:—:— || 10-0 Patches of scud ; a uniform mass of cirro-stratus. 21 801 || 56-5 | 53-6 | 2-9 ||0-3 | 0-3 | 23 || 28:26:—|| 10-0 Tals id. 22 810 || 58-9 | 54-7 | 4-2 ||0-3 |0-2 | 23 |: 26:—] 9-9 || Dense cirro-stratus ; patches of seud to S. 23 819 || 60-4 |56-3 | 4-1 || 0-2 |0-1 | 23 | 27:—:—J]| 10-0 || Thick scud; dense cirro-stratus. 18 0 834 | 61-2 |56-0 | 5-2 || 0-3 | 0-1 0 || 26:—:—J} 10-0 || Loose cumuli, and cirro-stratous seud. 1 |) 846 | 64-2 |58-3 |5-9 || 0-3 | 0-3 0 9-9 || Loose cumuli and cirro-strati. 2 844 || 65-4 | 58-6 |6-8 ||0-3 | 0-1 | 28 || 98:—-:— 9-9 || Masses of thick seud and cumuli ; cirro-strati. 3 855 || 63-6 |57-7 | 4-9 ||0-3 |0-0 | 31 || 28:—:—]| 10-0 A mass of black electric-looking seud to N.; cum.; cum,-str.; cir.-str.} 4 || 861 | 62-0 | 57-0 |5-0 ||}0-1 |0-0 | 6 |\27:—-:—]| 9-9 | Scud; loose cumuli; cirro-stratous scud. 5 | 868 | 65-0 | 59-8 | 5-2 || 0-2 [0-1 | 22 || —:30:—]| 9-9 || Cirro-cumulo-stratus ; cumulo-strati. 6 870 || 64-5 | 58-3 |6-2 ||0-2 | 0-1 | 23 ||: 30:— 9-8 Ia. ; id. 7 || 881 || 64-3 | 59-0 | 5-3 ||0-1 | 0-1 | 22 || —: 30: — 9-8 dt = cirro-strati. 8 || 896 | 59-6 | 56-4 | 3-2 || 0-2 | 0-1 4 ||—:31:—]| 9-5 Id. ; id. ; cumulo-strati. 9 902 || 57-7 | 55-3 | 2-4 || 0-2 | 0-1 34 —— Ol — 9-5 Id. ; id. ; id. | 10 908 || 55-0 | 53-5 | 1-5 || 0-2 | 0-1 4 2-0 Id. ; id. y 11 920 |/53-1 | 51-8 | 1-3 |/0-1 |0-0 | 2 || 1.2 Td. pa 12 931 || 50-4 | 49-8 | 0-6 || 0-0 | 0-0 4 |—:31:—] 0-8 || Cir.-cum. ; cir.-str. near horizon ; mist on the ground. )) 13 || 29-936 || 48-3 | 48-0 |0-3 || 0-0 |0-0 | 16 8-0 | Cirro-cum.-str.; cir.-str. near hor.; mist on the ground. )) } 14 |} 939 || 49-7 | 49-2 |0-5 || 0-0 | 0-0 4 10-0 || Dense mass of scud ? and cirro-cumulo-stratus. 15 |) 937 | 51-0 |50-5 |0-5 || 0-0 | 0-0 CN aT 9-5 || Cirro-cumulo-stratus. 16 || 936 | 51-0 |50-5 |0-5 || 0-0 | 0-0 4 || 2: 0:—|} 10-0 || Misty seud ; cirro-cumulo-stratus. 17 940 || 51-0 | 50-5 | 0-5 || 0-0 | 0-0 | 24 10-0 || Homogeneous mass of misty send. 18 944 | 52-9 |51-9 | 1-0 || 0-0 | 0-0 | 25 10-0 Id. 19 939 | 53-7 | 52-5 | 1-2 || 0-0 | 0-0 | 24 10-0 Id. ; Scotch mist. 20 939 || 55-7 | 54-3 | 1-4 || 0-1 | 0-0 | 25 || 10-0 Tdivs id. 21 950 || 56-7 | 55-4 | 1-3 || 0-1 | 0-1 3 4:—:—|| 10-0 || Misty seud; a densa mass of clouds. 22 || 948 |\57-9 | 55-6 | 2-3 ||0-3 |0-2 | 4 || 4:—:—]| 10-0 Id. ; id. 23 952 || 58-2 | 55-3 | 2-9 || 0-3 | 0-4 6 4:—:—] 10-0 Id. ; id. 190) 956 || 60-0 | 56-4 | 3-6 || 0-4 | 0-4 6 || 4:—:—]| 10.0 || Seud; dense cirrous mass. 1 | 955 | 58-3 | 55-0 | 3-3 || 0-5 | 0-3 4 4:—:— | 10-0 Td. ; id. 2 955 ||58-0 | 54-2 | 3-8 |/0-5 | 0-2 5 5:—:—| 10-0 Id.; id. 3 | 955 || 59-2 |55-0 | 4-2 ||0-4 | 0-4 6 7:—:—]| 10-0 Id. ; id. 4 || 956 ||59-6 | 55-0 |4-6 0-5 |0-3 | 6 || 6:—:—|]| 10-0 || Ia; id. 5 | 952 || 58-7 | 54-0 |4-7 || 0-4 | 0-5 7 6:—:—| 10-0 Id. ; id. 6 | 957 || 56-3 | 53-2 | 3-1 0-5 | 0.3 6 || 6:—:—|| 10-0 Id.; dense mass of cirro-stratus. 7 |i 961 | 55-6 | 52-5 |3-1 || 0-4 | 0-2 7 || 5:—:—]] 10-0 | Id.; id. 8 | 966 |d9-1 |52-4 |2-7 | 0-2 |0-2 | 4 || 5:—:—|] 10-0 | Id.; cir.-cum.-str. radiating from N., clouds breaking, J | 9 968 | 54-2 | 52-0 | 2-2 || 0-1 | 0-1 AS 10-0) Id.; id. i 10 | 970 | 53-4 |51-0 | 2-4 | 0-0 |0-0 | 6 10-0 Girro-stratous seud. 11 | 972 | 53-1 |50-9 |2.2 ||0.0 |0.0 | 6 10-0 | Id. 12 | 971 | 51-8 | 49-0 | 2-8 ||0-2 |0-1 | 4] 4:—:—|| 9.5 | Scud, breaking. |i 231/ 29-979 || 55-4 153-2 |2-2 |o-7 |0.7| 3 || 3:—:—|] --... ak “aan seud ; a slight drizzle throughout moet 2013 || 29-975 | 52-2 |51-8 | 0-4 |/1-3 |0-6 | 4 | 10-0 || Homogeneous mass. 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. (¢ irro-stratus), and Ci. (cirrus), are indicated in a similar manner. July 194 23%, Observation made at 23> 20m, | Hourty METEOROLOGICAL OBSERVATIONS, JuLY 20—22, 1845. 211 THERMOMETERS. WIND. Clouds, Se. : C.-s.: Ci.,|| Sky vam ovi louded Species of Clouds and Meteorological Remark - n c . ; Dry. Wet. | Diff. force in From pag aa rte ee homer me pt. pt. pt. Homogeneous mass. Id. Id. Id. Id. ; showers? since last. Thick, nearly homogeneous, misty seud. Lay mist at 2 miles. Id. mist at 5 miles. Scotch mist; light drizzle; objects invisible at 3 miles. Id. ; id. ; id. Nearly homogeneous scud; mist cleared off. Id. Id. Id. ; slight drizzle commencing. Id. Id. ; slight drizzle. Id. Id. Id. ; slight mist. tds; id. Id. ; id. Id. ; Scotch mist. Id. ; id. Tds Scotch mist. Id. ; slight drizzle. Id. ; id. Id. ; id. [miles. Id.; Scotch mist; objects invisible at 5 Id. ; id. ; id. Scud ; Scotch mist; objects invisible at 2 miles. Id.; id. ; id. Thick misty scud ; Scotch mist and light drizzle. Id. ; id. ; id. > py 8 0) 3 QAHnwasAaTd# _ D2 bob 2 3 0 1 2 3 3 hw RAR ADR AK 914 914 917 918 919 920 917 || 49-5 29-907 || 49-5 892 || 49-5 879 || 49-6 877 || 50-0 875 || 49-7 870 || 50-2 872 || 50-2 ' 876 || 50-8 870 || 52-0 ofl an Id.; nearly homogeneous. [drizzle. Misty seud, in blue and yellowish bands to W.; slight Nearly as before. Id. LG is drops of rain. A few drops of fine rain. Slight drizzle. Seud. Id. Id. Id. Id. Homogeneous seud ; slight drizzle. hs id. Id. ; id. oon _ ~~ N=S WNWNNKFWNWNWwWWwW WRRWKE KE BRK PWR KR EERE BRWWWWwWw Pe WwTWNEEMweAwoWAB EAD w WF | haf 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. om Otions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. | July 204195. Observation made at 19% 30™, 24 25 2) 849 ||55-0 | 52-1 1-2 | 0-6 3) 846 ||54-7 | 52-2 | 2-5 || 1-2 | 0-9 4) 842 ||55-7 | 52-3 | 3-4 || 1-1 |0-9 5) 838 | 54-7 | 51-9 | 2:8 || 0-9 |0-9 6| 836 || 54-3 | 52-3 | 2.0 || 0-9 | 0.7 7} 839 || 52.4 | 51-0 | 1-4 |} 1-3 |0-5 8) 836 | 52-4 |50-7 |1-7 ||0-5 | 0-3 9|| 829 ||51-9 |50-6 | 1-3 || 0-6 | 0.2 10|| 830 | 51-7 | 50-3 | 1-4 |} 0-4 | 0-2 11 827 || 51-4 | 50-3 | 1-1 ||0-3 |0-1 12|| 827 || 51-2 | 50-0 | 1-2 |/0-1 |0-1 13 || 29-825 | 51-4 | 49-0 | 2.4 | 0-2 | 0.2 14|) 821 | 51-2 |48-8 | 2.4 || 0-4 | 0-4 : 7 |2.3 | 0-6 | 0-4 22 808 || 54-0 | 52.0 | 2-0 || 0-5 | 0-2 23 811 || 54-1 | 51-3 | 2-8 || 0-4 |0-3 0 811 || 55-4 | 52-1 | 3-3 | 0-3 |0.3 1 810 | 56-3 | 52-9 | 3-4 || 0-3 | 0-2 2 806 | 56-3 | 52-1 |4-2 | 0-1 | 0-2 3 805 || 59-2 | 53-7 | 5-5 || 0-2 |0.2 4 785 || 58-3 | 54-0 | 4.3 | 0-2 | 0-2 5 774 | 57-6 | 53-6 | 4-0 | 0-1 | 0-0 6 769 | 56-5 | 52-7 | 3-8 || 0-1 | 0-0 7 768 | 55-6 | 52-5 | 3-1 || 0-0 | 0-0 8| 764 || 54-7 | 52-2 |2.5 || 0-0 |0.0 9 762 | 54-0 | 51-5 | 2-5 | 0-0 | 0-0 10 756 | 53-4 | 51-8 | 1-6 || 0-0 | 0-0 11 755 || 53-3 | 52-1 | 1-2 || 0-1 |0-0 12) 742 || 53-3 | 51-8 | 1-5 || 0-0 | 0-0 13 728 || 53-2 | 52-0 | 1-2 || 0-0 | 0-0 14) 717 || 53-2 | 52-0 | 1-2 || 0-0 |0-0 15 705 | 53-3 |51-9 | 1-4 || 0-0 | 0-0 16 698 || 53-9 | 51-9 | 2.0 || 0.0 | 0-2 17 694 | 54-1 | 52-5 | 1-6 | 0-2 | 0-0 18 695 | 54-6 | 53-1 | 1-5 | 0-1 | 0-0 19 699 || 55-3 | 52-3 | 3-0 : 0 692 | 60-0 | 54-4 | 5-6 || 0-2 | 0-2 1 687 | 62-0 | 56-0 | 6-0 || 0-3 | 0-2 2 674 | 63-0 | 56-4 | 6-6 || 0-5 | 0-2 3 673 | 66-6 | 58-2 | 8-4 || 0.2 | 0-2 a 661 | 65-8 | 58.2 |7-6 | 0-6 | 0-4 5) 651 || 65-8 | 57-4 | 8-4 10-3 | 0-1 | THERMOMETERS. WIND. Gott BaRo- —~ Mean | METER | Maximum } Time. | at 32°. || Dry. | Wet. | Diff. force in {Prom | 1, | 10™ a & oi lbs. | Ibs. | p PERE DNTP RWEWWNKNWNWWNNH NNNKRNWNWKhRWNNWRWET 16 Clouds, Se.: C.-s: Ci. moving from wrmnwnp ABE | | WwWwWwWwwwnnww | | ns | | =) | | 27:24:— 25 :—:— Hourty METEOROLOGICAL OBSERVATIONS, JULY 22—25, 1845. Sky clouded. Species of Clouds and Meteorological Remarks. Seud ; misty. Id.; slight drizzle. Id. ; id. Seud breaking ; cirrous mass above. Scud ; occasional showers. Id.; drops of rain. Id. Id.; occasional showers. Td. Id. Id. ; drops of rain. Id. Cirro-stratous scud. Misty seud ; slight drizzle. Id. ; rain! Seud breaking ; slight drizzle. Seud. Id. ; rain®® in a few minutes. Id. ; dense cirro-stratus. Id.; a tendency to break to S. Td. ; id. Ta. Id. Id. and cirro-stratous. Id. id. Id. id. Id. id. Td. id. Id. id. Id. id. Td. id. Id. id. ? ii Id. id. ; very still. (drops of rain. | Clouds, in strips, radiating from SSW. and NNE.; | Cirro-strati ; drops of rain. ! Scud ; cirro-strati. Nearly homogeneous seud ; cirro-strati. Td: id. Cirro-stratous seud ; cirro-strati; cirro-cumulo-strati. | Td. ; id. | fds; id. | Id. ; id. | Id. ; id. | Id. ; id. 1 Id. ; id. | Cirro-cumulo-strati. =) 8 Id. e Id. ; loose cumuli. Loose cumuli. =) The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, BE. =8, 8.=16, W. = 24. The i | motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. ; J 541 533 519 505 495 476 233} 29-318 27 13 || 29-427 14 431 a5 425 16 429 ¢ 428 432 435 435 427 426 423 422 420 — Da SeMIHA AMA wWDHO THERMOMETERS. Hovurty METEOROLOGICAL OBSERVATIONS, JULY 25—28, 1845. 213 WIND. 413 415 411 411 | 410 | 413 | 421 | 438 || 440 | 443 || 444 |) Dry. Wet. 49-9 48-5] 46-0 43-3 42-2 Diff. Maximum force in From Clouds, Se.: C.-s,: Ci., moving from pt. pt. pt. —:21: ocorw —:28:— eee, Species of Clouds and Meteorological Remarks. 010. 7-5 | Cir-cum.-str. ; linear cirri rad. from NNE., with tufts 7:5 || As before. (s) [of cirri. 8-0 || Woolly cirri, diverging from NE. and SW.; cir.-str. © 9-0 Woolly and linear cirri becoming cir.-str., rad. from SW by S. and 8-0 Nearly as before. (NW by N.; scud on Cheviot. 3-5 || Cirro-strati and woolly cirri. 7-0 || Cirro-cumuli and cirro-strati. MS 9-5 |) Cirro-cumuli and cirro-strati. } 9-8 Id. 9-8 || Cirro-strati. 9-8 Id. 9-8 || Thick cirro-stratus ; scud on Cheviot. 9-8 || Patches of send to N. ; thick cir.-str. ; scud on Cheviot. 10-0 Id. ; id. ; id. 10-0 Id. ; ders id. 10-0 || Cirro-stratous seud ; id. ; id. 10-0 Tae id. ; patches of seud. 9-9 Id. ; seud; mass of cir.-str.; scud to S. 9-9 || Scud; cirro-strati; cirrous mass; rain”? 9-9 1GBe id. ; id. 10-0 igks id. ; id. 10-0 Id. ; id. ; id, 9-5 Id.; cirro-cumulo-strati; cirro-strati ; woolly cirri. 10-0 Td. ; id. ; id. 9-8 Send, loose cumuli, and thick cirro-stratus. 9:8 || Id.; cirro-strati; cirro-cumulo-strati; cirri. 9-5 Id. ; id. ; id. ; id. 9-5 Td. ; id. ; id. ; id. 8-5 Id. ; id. 10-0 ics id. 10-0 || Scud and cirro-strati. tenons Sunday—Sunshine and showers ; clouds, loose cumuli and nimbi. 3-5 || Cirro-cumulo-stratus? radiating from NW. ») 0-2 || Patches of cloud on the horizon. ») 0-2 || Patches of cirrus on horizon; scud on Cheviot. »)) 0-8 Id. ; id. y 0-8 || Patches of cirri and cirro-strati; id. (0) 2-0 || Patches of scud ; cirri and cirro-strati over the sky. © 6-0 || Seud; cirri. (0) 6-0 || Woolly cirri and cirro-strati; scud round horizon. (0) 3-5 || Loose cumuli; cirri and cirro-strati (0) 5-0 Id. ; id. (=) 4-0 Id. ; id. 0} 8-0 || Scud; loose cumuli; cumuli; cirro-strati; cirri. [s) 9-0 || Cirro-stratous scud; id.; id. ; id. (=) 8-0 || Loose cumuli ; id. ; id. ; id, 8-5 || Scud and loose cumuli; cirro-strati, &c., as before. fo) 8-5 2 || Cir-cum.-str.; cum.-str.; sheets of cir.-str.; woolly cirri; nimbi; 9-0 || Nearly as before. (=) {rain to E. 8-0 || Scud ; cirro-cumulo-strati ; nimbi; cirro-strati ; cirri. © 7-0 IGae id. ; id. ; id. id. © 5:0 || Nearly as before; stormy appearance moved up to ENE.© 7-0 Cir.-cum.-str. ; cum. and nimbi on NW.and SE. hor. ; cir.-str. and cirri 7-0 || Cir.-cum.-str. ; woolly cirri. [rad. from SSW. ; cirri red. 3-0 || Thin cirri and cirrous haze ; cirro-strati on horizon. 4-0 Id. id. MAG. AND MET. os. 1845. The direction of the wind is indicated by the number of the motions of the three strata of clouds, Sc. (seud), C.-s. (cirro. July 28472, Very dark and stormy-like to ESE.; vertex of a solar halo. point of the compass, reckoning N. —0, H.=8,8.=16,W.=24. The -stratus), and Ci. (cirrus), are indicated in a similar manner. 3H 214 Hovur.Ly METEOROLOGICAL OBSERVATIONS, JULY 28—30, 1845. q 7 THERMOMETERS. Winn. Clouds | UGS | el EE : Se. :C.8:: Ci.) Sk : A: Mean || METER Maximum ey as Vet “a fs Species of Clouds and Meteorological Remarks. | Time. | at 32°. | Dry. | Wet. | Diff. force in | Prom ieee a i - | 14, | 10m. 1 4 ad. oh. in. eas 2 © lips. |b. pt. pt. pt. pt. |} 0—10. I ; 28 13 || 29-446 || 42-5 |42-1 | 0.4 | 0-0 | 0-0 | 24 2-5 || Cirro-strati on horizon. } 14|| 442 || 42-5 [42-1 |0-4 |/0-0 | 0-0 | 24 2-0 | Id. 15|| 439 || 41-4 |41-0 |0-4 |}0-1 |0-0 | 22 2-5 || Cirro-cumuli, cirro-strati, and cirri. >| 16 444 || 37-3 |37-0 |0-3 || 0-0 |0-0 | 24 5-0 Td. ; id. ; id. Ps i 17|| 443 ||38-2 |38-0 |0-2 |/0-0 |0-0 | 16 }—:12:—]| 3-5 Td. ; id. ; id. 18 456 40-0 |39-6 |0-4 || 0-0 |0-0 | 18 || 4:—:—]| 10-0 || Loose scud moved up since last observation. j 19 472 |\ 43-9 | 42-9 | 1-0 || 0-0 | 0-1 | 22 10-0 || Misty seud, nearly homogeneous. ‘ 20 479 ||48-5 |47-3 | 1-2 ||0-1 |0-0 | 20 || 3:—:—]| 10-0 Id., breaking ; fog ; objects invisible at 3 miles, | 21 482 ||55-0 |52.5 |2-5 | 0-1 |0-1 | 22 |—: 3:—]) 9-5 || Thin seud ; cirro-cumulo-strati ; cirri. La 22 476 | 55-4 |51-2 [4-2 || 0-1 |0-2 | 4 | 3:—:—]] 7-0 || Loose cumuli; cumuli; woolly cirri. fo} 23 || 473 || 58-0 | 52-0 |6-0 |] 0-2 | 0-1 0 2:—:— 4-5 | Id. ; id. ; id. . 29 O 465 | 60-7 |52-9 |7-8 | 0-3 | 0-3 4 |/1,29:—:— 8-5 | Loose black cum. ; cum.; cir. in streaks ; clouds look rather electric. | | 462 || 58-2 | 52-4 |5-8 || 0-2 | 0-2 4 1/29: :— 9-0 Td: ds id. ©) 2 472 || 59-0 | 52-2 |6-8 || 0-3 | 0-3 6°31:28:—|| 9-0 | Id. ; id.; cirrous haze round E, horizon. @} _ 3|| 470 | 60-3 |51-6 |8-7 ||0-4 |0-3 | 5 31:28:—|| 9.0 | Id. ; id. ; id. 4 467 || 60-7 | 53-3 | 7-4 || 0-3 | 0-1 5 |29:—:—|| 6-0 | Cum. ; cum.-str. ; cir.-str.; cirri; id. 5 472 | 59-8 | 52-2 | 7-6 || 0-2 | 0-1 3 || 29:— :— 9:0 Td; id. ; id. ; id. ; id. 6 469 | 59-7 | 54-0T) 5-7 | 0-1 0-0 | 20 ||28:16:—|| 6-5 | Id.; id. ; id.; woolly cirri. ) i 470 | 58-3 |54-3 |4-0 ||0-1 | 0-1 | 18 |}26:—:—}) 8-5 || Loose cum. and cum,-str. ; cir.-str.; cir. and cir. haze. G 8 464 | 55-8 51-74) 4-1 |0-1 | 0-1 | 21 |} 27:—:— 95 like id. ; 9 460 || 55-0 |51-0 | 4-0 |) 0-1 0-1 | 20 |} 28:—:—]} 9-0 || Scud; cirro-strati. 10 468 || 52-3 |50-0 | 2-3 ||0-1 |0-0 | 24 7-0 Id.; loose cumuli; cirro-strati. ll 467 | 48-7 |46-4 |2-3 | 0-1 |0-1 | 23 5-0 | Cirro-strati ; cirri. 12 476 | 48-2 | 46-4 | 1-8 0-1 | 0-0 | 20 5-0 | Scud and cirro-strati ; clouds broken. 13 || 29-472 | 46-2 44.8 |1-4 | 0-1 |0-0 | 164 2-0 | Cloud to E. 14 465 | 43-5 |42-3 |1-2 | 0-1 |0-1 | 20 0-2 | Id. 15 450 || 41-3 | 40-4 | 0-9 || 0-2 |0-1 | 20 0-2 | Cirro-strati and cirri on E. horizon. ) 16 441 || 43-0 |41-6 | 1-4 || 0-3 | 0-2 | 22 0-2 — Id. ) 17 428 | 41-0 40-0 1-0 || 0-3 | 0-2 | 24 0-2 | Id. =) 18 433 | 40-9 | 40.3 | 0-6 | 0-2 | 0-1 0 0-5 || Cumulo-strati on NE. horizon ; woolly cirri to N. 4 19 425 | 46-7 |45-0 11-7 ||0-1 | 0-1 20. || —:—: 20 0-5 Wool. and tufted cir., nearly stationary ; cir.-str. & cum.-str. to NE.@] 20 411 | 49-8 47-5} 2-0 || 0-1 | 0-1 16 0-8 || Sheets of cirri ; cumulo-strati to NE. ; small patches of scud to S. @} 21 || 402 | 55-2 |51-2 | 4-0 ||0-2 |0-1 | 14 | 22:—:— 0-8 || Loose cum. and scud, chiefly round hor. ; streaks of cir.to N. & W.@} 22 388 | 57-7 | 52-4 |5-3 10-2 | 0-1 8 | 21:—:— 3-5 Detached cum., having a kind of internal rotatory motion; patches } 23 384 | 59-9 | 52-4 |7-5 |0-5 | 0-4 | 20 | 20:—:— 7-0 || Scud ; loose cum., and loose cir.-cum.-str.@ [°f cir.-str. QJ 30 0 373 | 59:4 |52-5 |6-9 | 0-6 |0-2 | 26 || 21:—:—]| 8.0 || Loose cumuli; cirro-strati. f 1|| 349 || 64.0 |55-9 |8-1 |0-2 |0-1 | 16 }20:—:—] 7-0 Id. ; cirro-cumulo-strati ; patches of cirri, | 2 346 || 58-7 |55-4 |3-3 | 0-3 |0-1 | 22 9-0 Id. ; cirro-strati ; cirri ; shower lately. 3 315 | 63-0 |56-4 |6-6 | 0-1 | 0-1 | 14 ||16:—:—|| 9-5 || Thick scud and loose cumuli ; cirro-strati and cirri, 4 294 || 62-0 | 53-4 |8-6 ||0-7 | 0-8 | 17 9-5 Scud and loose cum. on hor. ; cir. haze and cir.-str.; faint solar halo.Q} 5 271 | 60-5 |55-3 15-2 || 0-9 | 0-3 | 12 || 13:—:— 9.7 Scud and loose cumuli ; cirro-strati and cir. haze; slight shower. Q] 6 255 || 57-7 | 53-7 |4-0 | 1-3 |0-3 | 13 |} 14:—:—]] 9.5 Thick smoky scud ; id. q 7 244 | 56-5 52.7 |3.8 ||0-6 |0-5 | 12 || —:13:—]| 9-9 || Cirro-stratous scud; cirro-strati ; cumuli on horizon. 8 | 231 || 55-6 | 52-0 | 3-6 || 0-7 | 0-5 | 12 10-0 Id. 9 220 || 54-7 | 51-7 | 3-0 |0-6 |0-3 | 14 1 13:—:—|| 10-0 Scud and cirro-stratus ; rain? 10) 213 | 53-7 |51-7 | 2-0 | 0-4 |0-3 | 12 | 10-0 Id. A ll 210 || 52-5 | 51-5 |1-0 || 0-3 | 0-1 6 10-0 Id? very dark ; rain” | 12 197 || 52-5 | 51-5 | 1-0 || 0-2 |0-1 4 10-0 Id? id.; rain” 13 || 29-183 || 52-3 | 51-5 | 0-8 || 0-2 | 0-0 | 12 | 10-0 || Scud and cirro-stratus; very dark; rain? 14 170 || 51-9 | 51-3 |0-6 || 0-0 | 0-0 | 16 | 10-0 | Id. ? rather broken ; dark ; rain®”® 15 175 || 50-0 | 49-6 | 0-4 || 0-0 | 0-0 8:—:—|| 50 Id. ? fog on the ground. 16 174 | 47-9 | 47-5 |0-4 || 0-1 | 0-1 | 16 1-5 || Cirro-stratous scud ; woolly cirri; fog in the hollows. )}| 17 | 185 || 46-3 |46-0 | 0-3 || 0-1 |0-0 | 14 |} —:13:— 1-5 Id. ; cirro-strati ; cirri ; id. ») 18 | 188 | 46-3 | 45-94/0-4 |0-0 |0-0 | 14 |} —:13:— 1-8 Id. ; id. ; id. mc 19 193 || 49-7 | 48-4 | 1-3 || 0-0 | 0-1 | 30 1-0 || Bank of cir.-str. round horizon ; patch of seud to W. 20 193 || 53-3 |51-0 | 2-3 0-5 10-3 | 16 | 16:14:— 2-5 || Thin seud; cirro-cumulo-strati ; cirro-strati. TO) The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, HE. = 8, 8. = 16, W.= 24. The 4 motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner, ‘ 4 Hovurty METEOROLOGICAL OBSERVATIONS, JuLY 30—AvucusT 2, 1845. 215 THERMOMETERS. WIND. Clouds || BAzo- ae Se.: O.8.: Ci.|| Sky Bean ae tall ea fi pe hag From| Moving elanded|| Species of Clouds and Meteorological Remarks. from 1h, |10™, h. in. ° ° © || tbs. | lbs. | pt. |] pt. pt pt. || O0—10. hs) 3 0 21 || 29-203 || 55-6 | 51 34 4-3 0-8 |0-8 | 14 | 15:12:— 75 Seud; broken masses of loose cir.-str.; loose cum. & cum.-str. on hor. 22 || 205 | 59-1 | 53-8 |5-3 |/0-7 |0-3 | 15 | 14:12:—1| 6-0 || As before; cumulo-strati to W. es 23 200 || 61-4 | 54-8 |6-6 || 0-6 |0-5 | 14 | 13:—:— || 8-0 || Seud and loose cumuli; cumuli; cirro-strati. 31 0 206 || 62-8 | 56-5 |6-3 ||0-7 |0-3 | 14 ||} 14;—:—] 7-0 Id.; id. e 1 198 || 63-0 | 54-8 |8-2 0-6 |0-3 | 14 }14:—:—]] 75 Tdi id. = 2 216 | 57-0 | 51-0 | 6-0 || 0-9 | 1-3 |16v.)| 14:—:—|| 9-0 | Thick black scud; cirro-strati; cumuli; rain?* 3 || 298 53-3 | 51-7 | 1-6 ||0-8 |0-2 | 14/14: —:—]] 10-0 Ia; id. ; id.; rain! 4|| 229 | 52-8 |51-7 |1-1 0-2 |0-2| 2 |/14:—:—|] 10-0 || Sond; cirro-strati; cumuli. 5 215 || 55-8 | 52-0 | 3-8 || 0-3 | 0-0 6 | 1J:—:— 9-9 Tdi: id.; id.; mnimbi around. 6 218 || 53-4 | 50-3 | 3-1 /0-9 |0-3 | 6 |}14:—:—|| 9-9 || Cirro-stratous scud; nimbi; cirro-strati. 7 220 || 53-8 | 51-0 | 2-8 0-5 |0-4 | 6 | 13:—:—|| 9-9 || As at 6"; still looking electrical ; drops of rain. 8 216 || 53-2 | 50-4 | 2-8 || 0-5 | 0-5 6 |} 12:—:— 9-0 Ragged seud; cir.-str. seud; cum.; cum.-str.; nimbi; cirro-strati; 9 226 || 53-4 | 50-3 | 3-1 |/0-5 | 0-3 | 12 10-0 || Nearly as before. (showers around. 10 234 || 52-2 | 50-3 | 1-9 || 0-3 | 0-1 6 9-8 Id. 234 || 52-0 | 50-3 | 1-7 || 0-1 | 0-0 2 9-8 || Thick scud; loose cumuli; cirro-strati. 237 || 52-3 | 50-2 | 2-1 || 0-2 |0-0 | 12 9-9 || Thick dark clouds ; small openings here and there. 29-237 || 51-6 | 50-2 |1-4 0-2 0.1 | 4 10-0 || Thick dark clouds. 232 151-6 |49.9 | 1-7 ||0-3 |o-1 | 4 9-9 Ta. 236 || 51-7 |50-1 | 1-6 || 0-1 | 0-1 | 14 9-8 || Thick send. 231 || 50-7 | 50-0 |0-7,//0-2 |0-1 | 6 9-8 || Seud and cirro-stratus. 235 || 51-1 | 49-7 | 1-4 | 0-1 |0-0 | 10 |) 12:—:— 9-9 Thick ragged seud, tinged with red to NE.; masses of scud lower. 237 || 50-9 |50-0 |0-9 || 0-1 |0-0 | 4 || 10:12:—J|| 9-7 || Scud; cirro-stratous seud. 251 || 52-1 | 50-6 | 1-5 |) 0-0 | 0-0 8 | 10:12:— 9-9 Id. ; id. ; cirro-strati. 250 || 53-8 |51-8 |2-0 |}0-1 |0-1 | 8 }10:12:—]| 9-8 || Loose smoky seud; misty cir.-str. ; cir.-cum.-str. 250 || 57-9 | 53-9 |4-0 |} 0-1 | 0-1 8 || 13:—:—] 10.0 Tah cirro-cumulo-strati ; rain”? 252 || 57-0 | 53-2 |3-8 |/0-1 |0-2 | 14 || 12:—:—] 10-0 || Seud; cirro-strati. 248 | 57-3 | 53-4 |3-9 0-1 |0-1 | 10 |13:12:—j 9-0 | Id.; cirro-cumulo-strati; cumuli; cirro-strati. © 248 || 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. 254 || 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. © 257 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. 252 || 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. © 4 248 || 61-7 | 55-4 |6-3 |/0-1 |0-5 | 22 || —:20:—]] 9-9 | Cirro-stratous scud; cirro-strati; cumuli. 5 253 ||57-6 | 53-8 | 3-8 ||0-3 |0-2 | 30 || 20:—:—J]| 7-5 || Piles ofcum.,cum.-str., & nimbi; cir.-cum str.; rain” © 6 268 || 56-7 eel 3-3 ||/0-5 |0-4 | 16 |} 17:—:— 9-9 Thick dark scud ; 55 55™-6h 5™, shower 3-4; cum,-str. on hor. Eg 271 ||53-6 | 52-31) 1-3 ||0-2 |0-1 | 20 || 18:—:—|| 9-5 || Scud; cir.-str.; cum.-str. on hor.; thick and dark toSW. » 8 278 || 52-9 | 52-0 |0-9 |}0-1 |0-1 | 22 | —:—:20 6-5 || Woolly cirri; scud; loose cum.-str. and cir.-str. on hor. 9 283 || 51-4 |50-7 |0-7 ||0-1 |0-0 | 24 | 20:20:—|| 8-0 || Scud; cirro-stratus and cirri. 10 291 || 51-1 | 50-4 |0-7 ||0-0 | 0-0 8 8-0 Id.; cirro-strati; cumuli. ll 292 || 50-2 | 49-7 | 0-5 || 0-1 | 0-0 9-8 | Id.; id. 12 292 || 49-8 | 49-2 | 0-6 |/0-1 | 0-0 9-5 Id., clouds broken. 13 || 29.293 || 49-9 | 49-5 | 0-4 |/0-1 | 0-0 10-0 || Scud; drops of rain. 288 || 50-0 | 49-5 |0-5 || 0-0 |0-0 9.9 | Id. ; id. 282 || 49-3 | 49-0 | 0-3 || 0-0 | 0-0 | 8-0 | Id; id. ; stars dim. 271 || 49-7 | 49-1 |0-6 |/0-0 |0-0 | 23 ||/16:—:—| 9-0 |) Smoky scud; cirro-strati. 276 ||49-7 | 49-0 |0-7 || 0-1 | 0-1 7 ||—:16:—|| 9-8 || Cirro-stratous scud ; mass of cirro-strati. 276 ||51-7 |50-5 |1-2 0-1 |0-1 | 10 ||—:16:—|| 9-9 Id. ; id. 274 || 53-5 | 52-2 | 1-3 ||0-0 | 0-0 6 | 16:—:—|] 10-0 || Scud and cirro-stratus. 274 ||55-7 | 53-6 |2-1 || 0-0 | 0-0 6 |—:16:—]| 9-8 || Cir.-str.; cir.-cum.-str.; masses of scud near horizon. 273 ||58-1 | 54-9 | 3-2 ||0-1 | 0-1 7 \|12:16:—|| 9-9 || Smoky seud; loose cum.; cir.-str.; cirri; drops of rain. 261 | 58-5 | 55-3 | 3-2 ||0-2 |0-1 | 21 || 16: 16:— 9-9 || Seud ; cirro-strati. 249 || 65-3 | 59-7 |5-6 ||0-1 |0-1 | 13 |} 14:16:—|| 9-8 || Scud and loose cum. ; cir.-cum.-str. ; cirro-strati. 239 || 64-6 | 58-6 |6-0 || 0-6 |0-6 | 16 | 14:—:—|| 9-7 || Scud; loose cumuli and cirro-strati. 222 || 67-4 |59-7 17-7 ||0-6 |0-2 | 12 ||14:—-:— || 8-5 || Cum.; cum.-str.; cirro-cumulo-strati and cirri. © 216 |\ 63-7 |57-6 |6-1 ||0-8 |0-3 | 14 ]]15:—:—|| 9-7 || Thick darkscud and cum. to W.; scattered cum. to E. 204 || 63-1 | 57-1 |6-0 ||0-4 |0-1 64/13 > — — 9.7 Black scud to W.; patches of ragged scud below; cum. on E. hor.; sky 202 ||60-0 | 55-2 |4-:8 ||0-4 | 0-4 | 25 ||13:14:— 9.5 Scud; cir.-str.; wool. cir.; 3 50™, muttering of thunder to NW. {to E, . 14 5b, Distant thunder in NE, ; very dark to NE. and SSW. ug. 1211h, Observation made at 11" 5m, 55 10m—1 5m, Two flashes of lightning seen to NE.; no thunder heard. 16 Hovurty METEOROLOGICAL OBSERVATIONS, AUGUST 2—5, 1845. THERMOMETERS. WIND. | Clouds La | Mra Veaastes IlSe.:C-s.:Ci,|] Sk Mean || METER Maximum lees Ae ied Suea Species of Clouds and Meteorological Remarks. Time. || at 32°. |) Dry. | Wet. | Diff.|| force in Prom 18 8 Hl F | 1h, | 10m, zo —|— a | = h in. S : © || Ibs. | Ibs pt. || pt. pt. pt. 0—10. 5 || 29-199 || 61-0 | 57-2 | 3-8 || 0-3 |0-0 | 25 |13:—:—|| 8-0 | Scud and cumuli; cirro-strati and cirri. 6 195 || 61-3 | 57-9 | 3-4 | 0-1 | 0-0 23 |12:—:—|| 9-5 Td. ; id. | 7 188 || 60-0 | 57-3 | 2-7 || 0-1 |0-0 | 22 }13:—:—}) 80 Id. ; id. ; cum.-str. © 8 178 || 58-4 | 56-0 2-4 | 0-1 | 0-1 21 | 13:13:— | 5-0 Scud and cir-cam.str.; range of cum. on E. horizon; cir.-str.; cum-str, ; rain 026) . 9 172 ||53-8 | 52-0 | 1-8 | 0-1 |0-0 | 20 |} —:13:— 5-0 || Cir.-str.-scud; cum.-str.; cir.-str.; fog rising from the ground. 10 169 ||51-3 |49-8 | 1-5 0-1 |0-0 | 1 ]|—:14:—}) 7-0 Id.; id., denser. 11 161 || 52-0 |51-8 | 0-2 |0-1 |0-0 | 2 | 10-0 | Fog; objects invisible at 150 yards. 12 148 || 52-0 | 51-8 | 0-2 || 0-0 | 0-0 | 10-0 || Id.; id. 233|| 29.107 ||62-6 |57-0 |5-6 22/10] 20} | ...... xe cat cee chiefly loose ragged eumuli; oc- Ey I ||) Aegon ae ced cee || Geek ee Pte 14 || 29-212 || 51-6 | 50-4 | 1-2 | 4-0 |0-5 | 21 2-0 || Cirro-strati round horizon ; cirrous haze to S. 15 224 || 52-4 | 50-9 | 1-5 | 0-7 |0-5 | 19 7-0 || Seud and cirro-strati. 16 233 || 52-7 |51-3 | 1-4 || 0-4 |0-3 | 18 9-8 Id. 17 243 152-9 |51-4 | 1-5 | 0-4 |0-5 | 20 | 20:—:—|| 9.8 Id. 18 261 ||53-0 |51-6 | 1-4 | 0-6 |0-5 | 21 | 21:—:—|| 9-7 || Scud; cirro-strati and cirro-cumulo-strati. 19 280 || 55-1 | 52-9 | 2-2 | 0-9 | 0-4 | 19 | 22:23:— | 9-8 | Misty scud very low; cirro-cumulo-strati; cirro-strati. | 20 290 || 59-8 | 56-2 | 3-6 ||0-5 |0-5 | 19 | 23:24:— |] 9.0 Id. ; id. ; id. QO} 21 299 || 60-0 | 56-3 | 3-7 | 0-5 |0-2 | 19 | 22:23:—]) 9-9 || Scud; aoye id. ! 22 312 || 61-2 | 57-7 | 3-5 || 0-6 |0-3 | 16 | 22:—:—j] 10-0 Id.; cirro-strati; cirrous mass. H| 7 23 320 ||61-6 | 58-2 | 3-4 || 0-6 |0-7 | 18 | 21:—:—) 9-0 || Seud and loose cumuli; cirrous mass. (=) 4 0 319 || 64-7 |59-0 | 5-7 || 0-9 10-6 | 18 || 22:—:—|| 87 Id. el 1 || 335 ||56-0 | 55-3 |0-7 || 1-2 |0-9 | 19 || 9-8 Id. ; shower?—? | 2 345 | 61-0 |56-9 |4-1 || 1-5 |0-8 | 19 ||21:22:— |) 9-5 || Scud; cum.-str. ; cir.-cum.-str.; cir.; drops of rain. Q] | 3 346 || 62-5 |57-5 |5-0 || 1-1 |0-5 | 20 |} 21:—:—] 9-5 | Loose cumuli; cirro-strati. [to NE. | 4 359 || 61-0 | 56-4 | 4-6 || 1-0 |0-6 | 19 || 21:—:— 9-9 || Seud; loose cum. ; cir.-str.; dense black mass of clouds | 5 367 || 62-4 |56-5 | 5-9 ||0-9 |0-7 | 20 || —:22:—)| 9-5 | Cir.-cum.-str.; cir.-str.; seud and cumuli on horizon. 6 373 || 58-4 | 54-9 | 3-5 || 0-8 |0-4 | 20 ]}—:22:—] 9-5 Cirro-strati ; masses of seud and cum.-str. on horizon. Y § 381 | 58-1 | 55-2 |2.9 | 0.4 |0.2 | 22 ||22:—:— |] 9-5 || Scud and cirro-stratus ; cumulo-strati on horizon. 8 395 || 57-5 | 54-0 | 3-5 || 0-5 |0-2 | 23 || 22:22:—]) 9-5 Id. ; thick dark clouds to NW. 9 402 || 56-2 | 53-0 | 3-2 0-3 |0-1 | 26 ||21:—-:— |} 8-5 Td. ; cirro-cumulo-strati. | 10 416 || 53-6 | 51-6 | 2-0 || 0-1 |0-0 | 24 4-0 tds id. ; cirri. ! 11 424 ||49-8 | 48-9 |0-9 || 0-1 |0-1 | 18 1-5 Td. a 12 426 || 50-0 | 49-0 | 1-0 || 0-1 |0-0 | 18 5-0 Td. j 1 13 || 29-431 || 48-3 | 47-9 | 0-4 ||0-1 |0-0 | 22 6-0 || Scud and cirro-stratus. y 14 437 || 48-3 | 47-7 | 0-6 | 0-0 | 0-0 4.0 Id. i 15 449 ||46-7 | 45-3 | 1-4 || 0-0 |0-0 | 23 4-0 Id. 16 452 || 47-2 | 46-9 |0-3 | 0-0 |0-0 | 25 6-0 Id. ; woolly cirri. i 17 463 ||47-0 | 46-8 | 0-2 ||0-0 |0-0 | 26 10-0 || Homogeneous mass ; fog, objects invisible at 2 miles. | 18 473 || 49-2 | 48-8 | 0-4 || 0-2 |0-1 | 25 10-0 Id. ; objects invisible at 1 mile. | 19 481 || 52-0 | 50-0) 2-0 | 0-1 |0-0 | 24 | 20:—:22]) 7-0 | Misty scud to S.; linear cirri; traces of a solar halo. 6] 20 487 | 54-9 | 52-9 | 2-0 | 0-0 |0-0 | 24 ||—:—:19} 8-0 | Woolly cirri; loose seud to S.; partial solar halo. QO} 21 490 || 56-7 | 53-34) 3-4 || 0.2 |0-1 | 26 || —:—:19] 9.2 || Diffuse cirri; scud and loose cum. on hor.; solar halo.@} 22 491 || 60-7 | 55-7 | 5-0 || 0-1 |0-0 | 16 9-5 Ta.; : 23 |i 494 || 65-0 | 58-0 |7-0 | 0-1 |0-1 | 30 || 20:—:20 9-0 || Detached cum. ; cir. and cir. haze; towering cum. to S.; solar halo. € 5 0 495 || 64-2 | 56-4 | 7-8 || 0-1 | 0-1 6 8-0 Id. ; id. 1 496 || 67-7 | 58-7 |9-0 || 0-2 | 0-1 | 18 | 9-0 Id. ; id. ; solar halo. 2 499 || 67-1 | 58-2 | 8-9 | 0-2 \0-1 8 ||—:18:— 9-9 || Cirro-cumulo-strati ; loose cumuli; cirrous haze. 3 | 496 | 68-5 | 59-6 |8-9 || 0-1 | 0-2 8 | 20:18:—|| 10-0 | Loose cum.; cir-cum.-str. ; cir.str. and cir haze; portion of a solar 4 500 || 63-4 | 57-0 | 6-4 | 0-3 |0-3 5 | 20: —:—|| 10-0 | Loose cum. moving very slowly ; dense cir.-str. and cir. haze. 5 || 507 || 61-6 | 57-4 | 4-2 || 0-3 |0-1 | 12 | 10-0 | Dense mass of cir.-str. and haze; masses of scud and loose cum 6 || 516 || 60-7 | 57-4 | 3-3 || 0-2 |0-1 | 14 |) 4:—:—]| 10-0 || Scud; mass of cirro-stratus. ; rain? [below; drops of raim 7 i 528 || 59-0 | 56-8 | 2-2 10-1 |0-0 | 20 | 4:—:—) 10-0 |] Ia.; id. ; slight drizzle. 8 | 538 ||57-7 | 56-4 | 1-3 0-1 |0-0 | 16 9-9 || Cirro-stratous seud; wavy cirro-strati; cir.-cum.-str. | 9 || 535 || 55-7 | 54-0 | 1-7 || 0-1 |0-0 | 18 || | 9-8 | Cir.-str.; wavy cir.-str. radiating from NNE. and SS Ve5) 10 |) 541 154-3 | 53-2 | 1-1 || 0-1 |0-0 | 26 || 9-8 || Cirro-cumulo-strati: cirro-strati. [sky to N.| Z a 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. { Hourty METEOROLOGICAL OBSERVATIONS, AUGUST 5—7, 1845. 217 ! THERMOMETERS. WIND. Clouds, | Gott, | Bano. Maxi Se.:C.-8.:Ci,|] Sky ; METER ay o _ x1 ho S 93 || 282 ||56-0 |55-2 | 0-8 9 0 || 268 | 56-0 | 54-4 | 1-6 1 || 258 || 55-8 | 54-8 | 1-0 2 || 256 53-4 | 52-2 | 1-2 |} 3 || 236 |) 54-8 | 53-2 | 1-6 4 || 214 53-3 | 52-2 | 1-1 5 || 209 || 53-4 | 52-2 | 1-2 6 || 202 || 53-3 | 52-1 | 1-2 7 || 205 || 53-0 | 52-0 | 1-0 8 || 207 || 53-0 52-0 | 1-0 9 || 209 | 53-6 52-5 | 1-1 10 || 205 ||53-3 | 52-2 | 1-1 11 || 199 || 53-7 | 52-4 | 1-3 12 || 173 ||53-7 | 52-7 |1-0 233) 29-253 || 56-0 | 55-6 | 0-4 1013 || 29-388 || 54-2 | 52-8 | 1-4 14 || 387 | 54-3 |53-4 | 0-9 15 | 387 | 54-3 | 53-2 | 1-1 16 || 398 || 54-0 | 53-0 | 1-0 17 || 400 || 53-9 | 53-5 |0-4 18 || 418 | 54-8 |53-4 | 1-4 19 || 425 || 55-2 | 53-7 | 1-5 20 || 437 ||56-5 | 54-3 |2.2 21 | 449 | 57-4 |54-4 | 3-0 22 461 58-2 |54-4 | 3-8 23 || 479 |\58-6 |54-1 14-5 _ oon ow cor SCOOCONN HK UH FE UNWLD o RwwoorFornwn wowwwreoeararrs nw ew | | Nwnnwnnnw | | 12:12:—]) THERMOMETERS. Gott. || Baro- | |——— — || eee: Mean || METER | Maximum Be ae uly ea Species of Clouds and Meteorological Remarks. Time. || at 32°. || Dry. | Wet. |Dist.| free ™ [From oe : : 1) | | 1h, |10™. ar | me | ° 3 © || qs. | Ibs. | pt. |] pt. pt pt |} 00. 7 18 || 29-498 | 50-7 49-74| 1-0 | 0-2 |0-2 | 23 || —: 27:— 1-5 || Cirro-stratous seud ; cirro-strati. [o) 19 | 503 |53-3 | 51-3 | 2-0 | 0-4 |0-3 | 24 1-5 || Scud and loose cumuli to 8. ; cirro-strati to E. {0} 20 | 504 || 54-6 | 51-3 |3-3 || 0-6 |0-4 | 18 1-5 Masses of scud and loose cum. on hor. ; cirro-strati to E. and N. © 21 || 501 156-9 | 52-71) 4-2 || 0-6 | 0-4 | 24 26:—:—|| 1-2 | As before; cirro-strati and sheets of thin cir. to N. © 22 || 494 | 58-4 | 53-3 | 5-1 || 0-5 0-5 | 24 | 27:—:—|| 3-0 | Masses of scud and loose cum. ; cir.-str. to E. and N.© 23 || 497 || 60-4 | 54-7 5-7 0-8 |0-5 | 22 | 27 :—:— 7-0 || Scud and loose cumuli ; cirro-strati. (0) 8 0} 492 || 63-0 |56-6 |6-4 || 0-7 |0-5 | 24 | 26:—:—]| 65 JGR id. fo) 1 || 487 |\63-5 |56-9 |6-6 || 0-6 |0-8 | 26 7-0 Id. © 2\| 481 |64-7 | 57-2 |7-5 ||0-9 |0-6 | 25 ||26:—:—]| 6-0 Id. 8 3 | 475 65-6 |58-0 | 7-6 10-7 |0-3 | 23 /26:—:—]| 9-7 Id. ; id. 4 466 | 65-8 |58-0 |7-8 | 0-6 |0-5 | 22 ||26:—:—|| 4-0 || Loose cumuli: cirro-cumulo-strati. (0) 5 || 456 165-0 |57-6 |7-4 10-5 [0-3 | 22 29:—:— 9-6 Id. ; id. 6 || j -8 |6-6 |/0-6 |0-6 | 23 ||} 28:—:—]| 9-5 Id. ; id. el 7 5-8 | 0-8 |0-7 | 21 || —:27:—}| 8-0 || Cirro-cumulo-strati and loose cirro-strati. 2) 8 5-0 ||0-7 |0-3 | 23 || —:27:—| 8-5 || Cirro-stratous scud ; masses of cirro-strati ; cirri. 9 3-7 0nd 0-3 | 22 ||—:26:—|| 9:8 iGae id. 3-2 || 0-4 | 0-4 | 23 9-9 Id. 2-4 |/0-5 |0-1 | 20 10-0 Id. @ 1-9 || 0-3 | 0-3 | 20 10-0 Id. ¢ Cirro-stratous scud. lige cirrous haze. Cirro-cumulo-stratus ? Td. Id. Scud ; cirro-stratous scud. Seud. Loose seud ; thick seud and cirro-stratus. tds; id. ; rain?” Scud ; id. ; rain! Tibks id. ; rain!? Td. rain” Id. ; id. ; rain?—3 Td. ; id. tay’ id. ; rain”? tab rain! Id. ; id. : rain” Id.; id. ; Seotch mist ; rain! Td. ; id.; clouds more broken; rain”? ¥d*- id, ; Id. Id.; slight drizzle. Id.; rain! '{Sunday—a.m. Nearly continuous rain. p.m. The clouds { partially cleared off. Seud. Id,; drops of rain. Id. Id. Id.; mass of cirro-strati. id. ; cirro-stratous scud. Id.; loose cumuli ; cirro-cumulo-strati. ; cirro-cumulo-strati; cirri. ; cumulous seud. ; loose cumuli. he 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), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Hovurty METEOROLOGICAL OBSERVATIONS, AucusT 11—13, 1845. 219 THERMOMETERS. WIND. Clouds /Gott. || Baro- : Se.:C.8.: Ci.) Sky Mean || METER Maximum eee | ete a Species of Clouds and Meteorological Remarks. ‘Time. || at 32°. || Dry. | Wet. | Diff. force in Prom peme 14, ; 10m, 5 in. ° ¢ £ Tbs. | lbs. | pt. || pt. pt. pt. 0—10. 29.495 || 58-2 | 53-7 |4-5 10-7 |0-6 4 || 2:—:—| 9-9 || Seud; loose cumuli. 506 || 60-4 | 55-5 |4-9 | 0-7 | 0-5 3 3:—:—]} 9-5 Id. ; id. 514 || 60-1 | 55-1 | 5-0 || 0-7 | 0-6 3 3:—:—| 9-9 Id. ; id. 527 || 60-3 | 55-0 | 5-3 |} 1-0 |0-7 | 3) 2:—:—]| 9-0 || Ia; id. 540 || 59-9 | 55-7 | 4-2 | 1-2 | 0-4 3 2:—:—| 9-5 Id. ; id. (o) 544 || 59-9 | 55-3 | 4-6 0-7 | 1-2 | 3 || 2:—: 8] 9-9 || Id; id.; woolly cirri and cir. haze; part of a 560 || 55-4 | 54-0 | 1-4 | 1-4 | 1-0 3 || 2:—:—|]| 10-0 Id.; cirrous mass; slight drizzle. {solar halo. 573 || 55-2 | 53-2 | 2-0 |10-9 | 0-9 2 2:—:—| 10-0 || Ia; id. ; cirro-strati. 590 || 53-3 | 52.4 | 0-9 |} 1-1 | 0-5 1 eae OO Id.; id. ; id.; rain! 597 || 53-6 | 52-0 | 1-6 || 1-0 | 0-6 2 1:—:—|| 10-0 Ids id. ; id. 614 || 53-3 | 52-5 | 0-8 || 0-8 | 0-6 1 10-0 Id.; cirro-strati. 625 || 53-5 | 51-5 | 2-0 | 1-2 |0-3 0 10-0 Id.; id. 624 || 53-4 | 51-8 | 1-6 || 0-6 | 0-4 1 10-0 Id. 29-627 || 53-9 | 50-9 | 3-0 | 1-2 | 0-9 1 10-0 |} Seud 627 || 53-8 | 50-8 | 3-0 |} 1-1 |0-7 | 3 10-0 || Ta. 635 || 53-7 | 50-5 | 3-2 |/0-9 |0-4 | 0 10-0 Id., radiating from N by E.; clouds breaking. 635 || 53-3 | 50-6 | 2-7 ||0-6 |0-2 | 1 10-0 || Id.; id. 637 || 53-1 | 50-4 | 2-7 || 0-3 | 0-2 1 0:—:— 9-5 Id.; cirro-strati. 652 || 52-7 | 50-7 | 2-0 || 0-3 | 0-3 | 30 0:—:— 9-5 Id. ; id. 663 || 52-7 | 49-8 | 2-9 0-3 |0-2 | 2 || O:—:—] 9-2 || Ia; id. 671 || 53-2 | 50-2 |3-0 || 0-3 | 0-2 0 0:—:—|| 10-0 Id. ; id. 681 || 53-7 | 49-6 | 4-1 |/1-0 |0-6 | 0 || 1:—:—|]| 9-9 |! Dense cirro-stratous seud; scud below to E. 686 || 54-9 | 50-7 | 4-2 ||0-7 |0-6 | O || 1:—:—|| 10-0 Td. ; scud below to N. and E. 691 || 56-7 | 51-4 | 5-3 || 0-8 | 0-8 1 1:—:—|] 10-0 Id. ; id. 706 || 55-5 | 51-0 [4-5 | 0-9 | 0-5 1 || 0:—:—| 10-0 || Send; cirro-stratous scud ; cirrous mass. 715 || 54-0 | 51-4 | 2-6 | 1-1 | 0-2 | 31 || 0:—:—] 10-0 | Ta; slight drizzle. 724 || 54-4 | 52-2 | 2-2 | 0-4 |0-3 | 30 || 31:—:—/| 10-0 Id. 728 || 55-3 | 51-2 |4-1 10-6 |0-7 | 1 || 0:—:—] 9-9 || Id., clouds breaking ; sky greenish on E. horizon. 740 || 55-4 |50-8 | 4-6 | 0-6 | 0-4 2 0:—:— 9-9 Id.; id. ; id. 741 || 55-2 | 49-8 | 5-4 10-8 [0-4 | O || —:31:—|| 9-9 || Cir.-str.; thick wavy cirro-strati; id. 749 || 54-8 |50-3 | 4-5 || 0-4 | 0-3 0 ||31:—:—|| 9-8 || Patches of scud; cirro-stratus ; sky on KE. horizon. 760 || 54-0 | 50-7 | 3-3 0-2 |0-1 | 30 |31:30:—|| 9-9 || Scud; cirro-cumulo-stratus ; clouds breaking. 771 || 52-6 | 50-4 | 2-2 |} 0-2 | 0-1 1 1:—:—]| 10-0 || Id.; rain®2 785 || 51-0 | 50-0. | 1-0 || 0-1 | 0-1 4 ||30:—:—|| 10-0 Id.; loose scud on horizon ; occasional showers. 788 || 51-0 | 49-0 | 2-0 || 0-1 | 0-1 1 10-0 Id. 792 || 50-0 | 48-4 | 1-6 || 0-0 | 0-0 | 28 9-8 Id.; cirro-stratus and cirrous haze. 800 || 48-9 | 46-3 | 2-6 |} 0-1 | 0-1 0 9-0 Id. ; id. 29-799 || 47-5 | 45-7 | 1-9 || 0-1 | 0-1 | 28 9-0 || Scud ; cirro-stratus and cirrous haze. 798 || 45-6 |44-5 | 1-1 || 0-0 |0-0 | 26 3-0 || Clouds round horizon; sky hazy. 798 || 45-8 | 44-9 |0-9 ||0-0 |0-0 | 26 9-8 || Cirro-strati. 786 || 45-8 | 44-9 | 0-9 }}0-1 |0-1 | 22 9-9 Id. 790 || 46-3 | 45-2 | 1-1 ||0-2 |0-1 | 24 9-5 || Cirro-cumulo-strati. 798 || 46-1 |45-3 | 0-8 ||/01 |0-1 | 24 || —;28:— 9-8 Id. 789 || 48-8 |47-2 | 1-6 ||0-1 |0-0 | 24 | —:28:—|| 9.2 Id. 802 || 51-2 | 48-9 | 2-3 0-1 |0-1 | 24 || —: 28:28] 7-0 || Cir.-cum.-str. ; sheets of cirri; patches of scud to SE.O 792 || 53-1 | 48-9 | 4-2 || 0-2 |}2-0 | 22 ||_-: —: 31 4-0 Woolly cirri; cir.-cum.-str.to W.; seud on NW. & N. hor.; cir.-str. © 787 || 57-3 | 51-3 |6-0 || 0-2 |0-3 | 28 | 26:—:29|| 6-0 | Loose cumuli; woolly cirri; cirro-strati; cumuli. (0) 782 || 59-6 | 53-2 |6-4 10-3 |0-2 | 25 26:29:31 8-0 Scud & loose cum,; cir.-str.; long lines of cirri radiating from N. by E. 781 || 61-4 | 52-4 |9-0 0-2 |0-2 | 29 || 26:—:31 9-5 | Scud and loose cum.; cirri and cir. haze; solarhalo. © 777 || 61-0 | 51-5 |9-5 0-3 |0-3 | 28 | 26:—:—|| 9-5 || As before. (0) 774 || 62-6 | 53-4 | 9-2 || 0-4 |0-3 | 28 ||28:30:—| 9-2 |! Scud and loose cum. ; cir.-cum.-str. ; cirri; cir. haze. © 776 || 62-1 | 52-3 | 9-8 |/0-3 |0-2 | 30 || 28:31: — | 9-2 Id. ; id. ; id. ; id. © 776 || 60-4 |52-8 |7-6 ||0-2 |0-1 | 29 || —:28:—J] 9-8 || Cirro-stratous seud ; cirri; cirro-strati. 774 || 60-0 | 52-8 |7-2 || 0-2 | 0-1 | 29 | 9-9 || Scud; cir.-str. scud; nearly homogeneous mass of cir.-str. 772 || 58-4 |53-1 |5-3 0-1 | 0-1 0 ||28:—:—|| 10-0 || Seud; dense cirro-stratus and haze. 782 || 56-5 | 52-7 | 3-8 ||0-0 | 0-0 3 || —:28:—1]) 10-0 || Thick cirro-stratous scud ; dense cir.-str. and haze. | @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 a | ey iia 20 Hovurty METEOROLOGICAL OBSERVATIONS, AuGuST 13—15, 1845. THERMOMETERS. |) WIND. il |) ee = Ieaces Balsa onl cae ; Mean || METER | Maximum ae 4 re cen Species of Clouds and Meteorological Remarks. Time. || at 32°. || Dry. | Wet. | Diff.|| force in | From ae ¥ - 1b, , 10™. = — ——- \ ad oh in. m i 2 lbs. | Ibs. pt. pt. pt pt. 0—10. | 13. 8 || 29-785 || 54-3 | 52-2 | 2-1 || 0-1 | 0-0 6 10-0 || Masses of scud ; cirro-stratous and cirrous haze. 9 791 || 53-4 |51-9 |] 1-5 ||0-1 | 0-0 | 20 10.0 Id. ; id. 10 793 ||52-5 |51-4 | 1-1 0-0 | 0-0 | 26 10-0 || Seud and dense cirro-stratus. 1l 799 || 51-0 | 50-3 | 0-7 || 0-0 |0-0 | 26 7-0 || Seud, cirro-stratus, and haze. 12 798 ||49-2 | 48-3 |0-9 || 0-0 | 0-0 | 25 3-0 Id. | 13 || 29-778 ||49-9 |48-9 | 1-0 || 0-0 |0-1 | 20 5-0 || Seud, cirro-stratus, and haze. | 14 761 || 48-9 | 48-0 |0-9 | 0-1 |0-0 | 18 6-0 Id. i 15|| 754 |/49-2 | 48-3 |0-9 || 0-1 |0.0 | 18 10-0 Id. 16) 732 || 50-0 | 48-2 | 1-8 | 0-1 | 0-0 | 20 10-0 Id. | 17|| 716 || 51-2 |48-8 | 2-4 || 0-1 | 0-1 | 20 || 26: 26:—|| 10-0 || Scud and cirro-stratous seud ; cirro-strati. | 18} 707 ||51-7 |49.0 | 2-7 | 0-3 |0-3 | 25 || —:28:—]| 10-0 || Cir.-str. seud; sheets of cirro-strati; scud on Cheviot. 19|/ 698 || 52-1 |49-3 | 2-8 | 0-2 |0-1 | 24 10-0 || Dense cirro-stratus. 20)| 693 || 53-3 | 50-1 | 3-2 ||0-2 |0-1 | 26 10-0 Td. ; patches of scud to E. 21\| 694 || 55-5 | 51-4 | 4-1 0-6 |0-5 | 26 | 28: 30:—|| 10-0 | Patches of seud; dense sheets of homogeneous and wavy 22 691 || 54-4 | 51-3 | 3-1 |10-5 | 0-4 | 30 |} 298:—:—]] 10-0 || As before; rain®® [cirro-strati; drops of rain. } 23 || 684 || 56-0 | 52-2 |3-8 0-5 | 0-7 | 29 10-0 || Patches of scud to S. ; dense homogeneons cirro-stratus. 14 0 674 || 59-0 | 53-9 | 5-1 || 1-1 |0-5 | 28 || 30:—:— || 10-0 || Masses of send and loose cum. ; homogeneous cir.-str. 1 || 661 ||59-6 | 53-3 |6-3 | 0-8 |0-7 | 30 | 30:—:—|| 10-0 Id. ; id. 2 || 651 || 60-7 | 54-3 | 6-4 || 1-0 | 0-3 | 31 ||}29:—-:—|| 10-0 Id. ; id. 3 642 || 59-9 | 53-6 | 6-3 | 0-6 |0-2 | 31 | 299:—:—]| 10-0 Ids id. 4|| 624 || 57-8 | 53-4 | 4.4 | 0.6 |0-4 | 28 | 29:—-:—]] 10.0 || As before; drops of rain. 5 614 || 56-4 | 52-7 | 3-7 | 0-3 | 0-1 | 22 || _:26:—|| 10-0 || Cirro-stratous scud and dense cirro-stratus. 6 599 || 55-9 | 52-3 |3-6 || 0-4 | 0-3 | 28 || —:98:—]| 10-0 Td. f | 598 || 54-8 | 52-2 12.6 |10.4 | 0-2 | 25 10-0 Id. § 8 599 || 53-2 | 50-8 | 2-4 || 0-4 | 0-2 | 28 ||: 30: —]] 10-0 Id. { 9 593 || 52-9 |50-4 | 2-5 || 0-4 |0-2 | 30 10-0 Id.; drops of rain. 10 589 || 52-2 |50-2 | 2-0 || 0-1 |0-1 | 31 10-0 Td. 11 582 ||51-7 | 49-8 | 1-9 || 0-1 | 0-1 | 26 10-0 Id. 12 574 || 52-2 [49-6 | 2-6 ||}0.1 |0-1 | 27 10-0 Id.; drops of rain. 13 || 29-566 || 51-9 | 49-5 | 2-4 10-1 |0-0 | 26 10-0 || Cirro-stratous seud and dense cirro-stratus. 14 577 || 56-3 |49-4 10-9 10-9 |0-2 | O 10-0 |} Scud; showers!— lately ; rain” 15 578 || 50-2 | 48-6 |1-6 |/0-2 |0.3 | 2 9.5 || Id.; cirro-strati; sky to N. 16 578 || 48-7 | 46-5 | 2-2 || 1-6 | 0-3 0 9-5 Id. ; id. ; id. 17|| 577 || 47-0 | 45-0 | 2-0 |/0-3 | 0-0 | 28 |—: 0:— 3-8 || Cirro-stratous scud. 18 || 587 || 47-7 | 45-3 | 2-4 110-2 |0-1 | 31 0-5. 9.9 Loose and cir.-str. seud, tinged blue, yellow, and orange; sky on hor. 19 588 ||49-3 | 46-2 |3-1 || 0-4 |0-3 | 30 || —: 0:—|| 9-9 || Cirro-stratous scud ; undulated cirro-stratus. ; 20 592 || 51-2 | 47-2 |4-0 || 0.5 | 0-3 Te ame el) ar eas cirro-strati. 21 596 || 52-3 | 47-9 | 4-4 | 1-0 | 1-0 | 31 0:—:—|| 7-0 || Seud and loose cumuli; cirro-strati. 22|| 602 | 53-0 | 48-2 | 4-8 || 1-5 | 1-1 | 31 || 1:—:—|]] 9-8 Id. ; id. 23|| 597 || 52-5 | 48-8 |3-7 11-1 |0-9 | Oj 1:—:—] 7-0 Id. ; id. 15 0 594 | 54-3 |47-8 | 6-5 || 2-7 | 2-0 | 30 | 0:—:—|| 4-5 | Loose cumuli; cumulo-strati; cirro-strati. { 1 600 || 57-4 | 50-6 |6-8 || 2.7 | 2.4 2 1:—:—)]] 9-0 || Scud and loose cum. ; piles of cum, to N.; cum.-str.; 2 612 || 56-3 | 49-8 | 6-5 || 2-6 | 2.2 i 1:—:—] 7-0 || As before. (0) {cirro-strati.C 3|| 622 || 57-52| 49-0 | 8-52]| 2-3 | 1-7 | 30 | 0:—:—]] 7-5 Id.; woolly cirro-cumulo-strati. ¢ 4 618 || 56-3 | 49.2 |7-1 |0-9 |0-7 | 2131:—:—|]| 9.8 Id.; sky greenish on E. horizon. € 5 617 || 56-7 | 49-8 |6-9 || 1-8 | 3-1 0 0:—:— 9-2 Id. 4 6 622 || 54-8 | 47-7 |7-1 | 2-3 | 1-3 0 || 0:—:—] 7-0 || Seud and loose cumuli; cirro-cumulo-strati. 7 632 || 53-4 | 47-8 |5-6 || 1-9 | 1-1 0 0:30:—j] 4-0 Id. ; id. ; thin cirri. 8|| 649 || 52-6 | 47-3 | 5.3 || 1.5 | 0-8 0 ||—: 0:—]| 9-0 || Cirro-stratous seud. 9|| 656 || 49-7 | 45-8 |3-9 | 0-5 |0-4 | 31 |—: 0:—|l] 9-5 Id. ) 10}| 674 | 50-6 | 46.4 |4.2 10.7 |0-5 | 31 |}: 0:—|| 9-0 Id. ; 11] 672 ||49-8 | 45-7 |4-1 ||0-4|0-8 | oO 10-0 Id. sh 12 || 669 || 50-3 | 45-4 |4-9 | 1-1 |0-5 | 31 10-0 Id. A 13 || 29-670 || 49-9 | 45-1 |4-8 |0.8 | 0-4 | 30 10-0 || Cirro-stratous scud. 14 668 || 49-4 | 44-8 |4.6 ||0-9 |0-4 | 31 9-5 || Cirro-strati and cirro-cumulo-strati; clouds breaking. — 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. Hourty METEOROLOGICAL OBSERVATIONS, AuGusT 15—18, 1845. 221 THERMOMETERS. WIND. i C.-8.:Ci.,]] Sk wet. | Dift ene F clouded. Species of Clouds and Meteorological Remarks. et. | Diff. ‘rom bh. in. : E ; 15 15 || 29-668 : “ . D D . Cirro-strati and cirro-cumulo-strati. ‘16 672 o ‘| : : : . Scud ; cirro-stratus. 17 670 | 47- -6 | 3-3 || 0-4 | 0- :—: . Ta. ; id. | 18 678 : . . : : A : . Id.; cirro-stratous scud. } 19 684 : : : : - Aa is . Cirro-cumulo-stratus ; scud to E. 20 697 : : : . fs eZ c Ls id. [send to W. 21 701 ThE . : masses of cirro-strati; patches of 22 704 id. (>) 713 patches of scud to W. 712 710 703 694 690 686 675 675 677 678 683 681 677 ww coor Nr OOF w WSN PRE OF _ Cirro-cumulo-strati and cirro-strati. 234) 29-581 5 . : : . Sunday—a.m. Scud and cir.-str. p.m. Scud and showers. 17 13 || 29-422 . . * : . F ; Fi Scud ; cirro-cumulo-strati? rain”? 14 418 || 52- 5 |0-5 || 0-1 | 0- a . Id. ; id. 15 416 : e D . : i—: . Id. ; id. 16 405 . F : : ‘ . IGIEP id. ] 399 . : : . . i—: . Cirro-stratous scud ; cirro-strati; cirri. 404 E c : . 5 ae . ese cirro-cumulo-strati ; cirri. 3 Id. 5 woolly cirri; cir.-str.; cum. to N. Thin scud ; woolly and mottled cirri; cumuli to N. @ Loose ragged scud and loose cumuli; cirro-strati. Scud and loose cumuli; cumulo-strati; cirro-strati. Loose cumuli ; cumuli; id. ; id. (0) Id. ; id. ; id. id. Scud and loose cumuli; id. ; id. Id. ; id. ; id. Send ; cumuli; rain? Thin seud; 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. Send and cirro-stratus. Cirro-stratous scud, causing a diffuse lunar corona. } Cirro-cumulo-strati. Misty scud and cirro-stratus. Td. Misty scud ; cirro-stratus ; gathering of swallows. :—: Id. ; id. e@ 53-6 : : : . 220: : Id.; woolly cir.-cum. ; piles of cum.-str. on N. hor. ‘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 ons of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. ug. 184195. Observation made at 19% 25m, a MAG. AND MET. oBs. 1845. a Gott. Mean Time. 22 ‘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. CJ we co Hourty METEOROLOGICAL OBSERVATIONS, AuGusT 18—21, 1845. Dry. Wet. 51-0 51-0 THERMOMETERS. Diff. Dee eee HOF NN EE HE Ome TNPROCOCOSCOS COCOONNON WW WIND. Maximum force in |Prom 14, |10™, lbs. | Ibs. pt. 0-0 |0-0 | 10 0-1 | 0-2 6 0-5 | 0-5 5 0-9 |0-9 3 0-8 | 0-9 3 1-5 |0.9 2 1-3 | 1-0 2 1-5 | 1-0 2 1:3 | 0-7 2 1-0 | 0-4 0 0-8 | 0-4 2 0-9 |0-9 1 | 0-9 | 0-7 1 1-7 | 1-4 | 31 2-3 | 1-7 0 2-5 {1-4 / 31 1-7 | 0-7 | 30 1-1 | 1-2 | 30 1-5 | 1-2 | 30 1-7 |1-3 | 30 1-4 |0-5 | 30 1-5 |0-9 | 29 1-9 | 1-4 | 29 1-9 | 1-7 | 29 2-4 |1-8 | 29 1-9 |1-3 | 30 3-3 |1-8 | 28 2:7 |1-9 | 28 2-3 |1-7'| 28 5-0 | 1-1 | 28 1-3 | 1-0 | 28 1-8 |0-7 | 29 1-9 | 1-4 | 28 1-5 | 1-1 | 29 |} 1-2 |0-9 | 28 | 2-3 | 1-0 | 30 11-1 |0-8 | 29 11-2 10-6 | 30 0-8 |0-1 | 26 0-3 | 0-2 | 29 0-2 |0-0 | 20 0-1 |0-1 | 22 0-2 |0-1 | 22 0-1 |0-0 | 22 |0-3 |0-3 | 24 0:3 |0-2 | 24 0-4 |0-3 | 23 0-4 |0-5 | 23 0-2,|0-1 | 27 1-2 |0-6 | 29 1-5 | 1-2 | 30 0-9 |0-2. | 30 0-3 |0-2 | 24 0-4 |0-.2 | 23 0-4 |0.2 | 27 0-4 {0-3 | 21 =! NONWWWwWWWw hops 28: 28: Clouds, Se. : C.-s. :Ci., moving from i i ho a fe Set a a Sky clouded. Species of Clouds and Meteorological Remarks. Misty scud ; cirro-strati. Tags cirrous mass, eB S acer rain'® Td. ; fine rain’* Walt; fine rain?® TehS fine rain! Tisky fine rain! Ids; fine rain! Id. ; fine rain! ? Masses of loose scud ; dense mass of cir.-str. ; rain"? As before ; rain’? [yellow to NW. ; rain” Patches of loose scud; dense cirro-str. ; clouds tinged | Seud and cirro-stratus ; continuous rain! Rain! Seud; rain’? Td. rain®5 Seud; rain! Id.; rain!” Id.; rain? Id.; rain! Id.; rain! Id.; rain! Loose seud ; dense cirro-stratus ; rain!—* Td. ; rain”? Td. ; rain’’® Id. ; rain’® Id.; rain”® ihe rain! Id. ; rain! Idi; rain’? Tats), eran [nearly visible. His dense cirro-str ; drops of rain ; sun’s dise Masses of scud ; homogeneous cirro-stratus; rain” | Patches of scud ; id. [stratus ; rain?? Masses of seud and cir.-str. to S.; homogeneous cirro- Id. ; id. Seud ; rain"? Id. Mass of cirro-stratus. Id. ; lower cir.-str. radiating from NW. Mass of cir.-str.; lower cir.-str. radiating from NW. ) Id., thinner ; id. Id., much thinner; patches of seud. } Loose cirro-strati; cirro-cumulo-str. ; clouds broken. As before. } [eum.; sky rather wild-looking, Loose cir.-cum.-str. ; dense cir.-str. ; woolly cir, ; cirro Cirro-cumulo-strati ; cirro-strati ; woolly cirri. 0) Woolly cirri ; id.; seud, = Cirro-cumulo-strati ; woolly cirri. = Td. ; id. ; cirro-strati. © Scud and loose cumuli ; cirro-strati; woolly cirri, © Id. ; id. =} Cirro-stratous scud ; wavy cirro-strati; cirri. | Thick cirro-stratous scud. | Seud ; cir.-cum.-str. ; cum,-str. on E. hor. ; cir.-strati. @} As before. DW OWH A> (=>) a for} SODTAMR WMHS “I _ tbo we ee 606 601 600 598 591 594 602 584 570 565 568 556 555 560 569 562 578 584 ug. 224 5h 45m, Hourty METEOROLOGICAL OBSERVATIONS, AuGuST 21—23, 1845. 223 THERMOMETERS. WIND. Maximum Dry. | Wet. | Diff. force in | Prom 14,| 10™ Ss B a Ibs. | Ibs. | pt. 57-7 | 52-0 | 5-7 |}0-1 |0-1 | 26 57-3 | 51-1 |6-2 ||0-3 | 0-1 | 23 55-9 | 50-6 | 5-3 |/0-2 | 0-2 | 22 53-6 }49-7 |3-9 ||0-4 |0-1 | 22 50-7 | 47-8 | 2-9 ||0-2 |0-1 | 20 50-0 | 47-4 | 2-6 ||0-3 |0-3 | 22 47-9 | 45-8 | 2-1 ||0-3 | 0-2 | 22 45-6 | 44-4 |1-2 ||0-1 |0-1 | 22 45-4 | 43-9 |1-5 ||0-1 |0-1 | 22 42-7 | 42-0 |0-7 ||0-1 | 0-1 | 21 38-7 | 38-4 |0-3 || 0-1 | 0-0 38-5 | 38-2 | 0-3 ||0-0 |0-0 | 14 40-7 | 40-2 |0-5 || 0-0 | 0-0 | 18 43-7 | 42-5t) 1-2 | 0-1 |0-1 | 20 45:7 | 44-0 |1-7 ||0-2 |0-1 | 21 50-0 | 47-4 |2-6 ||/0-2 | 0-4 | 22 53-7 | 49-71) 4-0 || 0-3 | 0-4 | 20 57-0 | 52-7 | 4-3 ||0-6 | 0-5 | 20 58-0 | 51-0 | 7-0 || 1-3 | 1-2 | 20 61-2 | 54-4 |6-8 || 1-1 | 1-0 | 20 60-7 | 53-4 |7-3 || 1-7 | 1-3 | 21 63-7 | 56-2 |7-5 11-6 | 0-9 | 20 61-2 | 54-6 | 6-6 || 2-4 | 1-3 | 20 60-9 | 53-7 | 6-2 || 1-5 | 0-8 | 20 59-5 | 52-6 |6-9 |} 1-9 | 1-6 | 21 57-2 | 52-4 |4-8 111-7 | 1-1 | 20 56-4 | 53-1 | 3-3 || 1-0 | 1-2 | 20 56-0 | 52-6 | 3-4 || 1-9 | 0-8 | 20 55-7 | 52-5 | 3-2 | 2-3 | 1-2 | 19 55-7 | 52-5 | 3-2 |} 1-7 | 1-1 | 19 55-4 | 52-3 | 3-1 || 1-7 | 1-2 | 19 55-4 | 52-8 | 2-6 || 1-4 | 1-2 | 19 54-0 | 52-8 | 1-2 || 1-6 | 0-6 | 18 55-7 | 53-4 | 2-3 |11-8 | 2-0 | 20 55-8 | 54-0 | 1-8 || 2-6 | 2-4 | 18 55-2 | 53-6 | 1-6 || 1-8 |0-7 | 17 56-4 | 54-8 | 1-6 |} 1-6 |2-0 | 18 55-4 | 55-0 | 0-4 || 2-2 |0-5 | 18 55-3 |54-0 |1-3 |} 1-4 | 1-3 | 20 56-4 | 54-9 | 1-5 || 1-5 | 0-4 | 18 58-1 | 56-4 | 1-7 ||0-8 | 0-4 | 18 61-4 | 57-2 |4-2 10-9 |0-8 | 18 59-1 | 55-0 |4-1 || 1-8 | 1-5 | 19 59-3 | 54-9 | 4-4 ||2-1 | 1-3 | 20 61-3 | 56-6 | 4-7 ||2-1 | 1-6 | 19 61-4 | 55-6 | 5-8 || 2-5 | 1-1 | 18 63-0 | 56-6 | 6-4 |} 2-3 |1-5 | 19 62-0 | 55-6 |6-4 || 2-7 | 2-1 | 19 58-4 | 55-4 | 3-0 2-3 | 1-6 | 21 57-3 | 55-2 |2-1 ||2-5 | 1-8 | 19 56-3 | 54-6 | 1-7 || 1-5 |0-5 | 19 54-0 | 53-0 | 1-0 0-6 | 0-2 | 17 52-8 | 52-0 |0-8 || 0-2 | 0-0 | 17 51-9 | 51-0 | 0-9 |/0-5 | 0-3 | 18 49-9 | 49-1 }0-8 ||0-3 | 0-1 | 20 148-9 | 48-4 | 0-5 ||0-2 10-1 | 20 Clouds, Se. : C.-s.:Ci., Llisgleiliallsh|ileadia| ter =beslecbel=deet Sky clouded. Species of Clouds and Meteorological Remarks. Large cirro-cumalo-strati; cirro-strati; cumuli. (s) As before. [rather electric looking. Inky detached scud; cir.-cum.-str. ; cum.-str. on hor. ; Cirro-cumulo-strati ; cirro-strati. Id. ; id. Id. ; id. tds: id. Id. Cirro-stratus on E. horizon. Light cirrus to N.; cirro-stratus or seud to SE. Cirri and cirro-strati on horizon. Cirro-strati, &c., to E. Cirri and cirro-strati. Cirro-cumuli ; cirrous haze. (0) [cap of scud. © Loose cir.-cum.-str. ; small cir.-str.; lin. & tufted cir.; Cheviot has a wywyrYyy vy Cir.-cum. in patches ; cir.-str. ; scud on Cheviot & N. hor. ; cir,; cir: Cir.-cum. ; cir.-str.; scud on horizon. © (haze. E 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. ; id. ; id. >) Id.; many whale-like cir,-str. on hor. ; mot. cirri & thickening Nearly as before. e leir. haze. © Id. ; cir. haze less dense & portion of a halo Scud ; cir.-str.; cir.-cum. and cir. haze. [visible.© Scud ; cirro-stratus and haze. hee id. Id.; cirro-stratus. Id. Id. Id.; streak of light on E. horizon. Send; rain”? Id.; drops of rain Id. Id.; rain!’ Seud moving rapidly ; cirrous mass above. Scud; drifting rain? Td.; rain'~*; sky to NW. Id.; cirro-strati. Loose scud ; loose cumuli and cirro-cumuli, (s) Scud and loose cumuli. 0) Tdi cirro-strati on E. horizon. (0) Id. ; slight showers occasionally. Id. (0) Id. (0) Id. Id. ; cirro-cumulo-strati. [s) Id. ; slight shower. Send; cir.-cum.-str.; cum.-str.; cir.-str.; rainbow; rain!®@ As before ; nimbi; sky wild-like ; passing showers. Seud ; very thick dark seud ; cirro-strati; showers?—* Thick scud. [since 78. Seud and cirro-strati. Td. > ) Cirro-cumulo-strati. 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 s of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. A parhelion and solar halo were seen. 224 Hovurty METEOROLOGICAL OBSERVATIONS, AUGUST 23—26, 1845. THERMOMETERS. WIND. Clouds, aso amas” te “ ed Species of Clouds and Meteorological Remarks. Wet. | Dig.|| force i i ; from ° pt. h. in. | | 29.641 —s Sunday—Seud and loose cum. ; showers in the forenoon. | | 29-668 | on Cirro-cumulo-strati. Td. Id. Seud and cirro-stratus. Thick seud ; cirro-stratus. Thick cirro-stratus and seud ; rain”? Loose scud ; mass of cirro-strati. Seud ; id. ; rain” TIGER id. ; rain! td; i fdas ? ; | | | | BRRwWOoORGOUAWIAHAY Id. Id. Id. clouds breaking. Scud and loose cumuli; cumulo-strati ; cirro-strati. 1G 5p id. ; rain! Td. ; id, Seud ; cirro-stratus ; rain!—* Td. ; id. Drizzling rain! Scud and cirro-stratus. Id., clearing off from westward. Scud and cirro-strati. Id. Cirro-cumulo-strati. Id. ; eirrous haze. Scud and cirro-strati. Id. Cirro-stratous seud. Tidy; mass of cirro-strati. Cirro-strati. Patches of loose seud ; cirro-strati and cir.-cum.-str. Id. ; id. tats id. ¢ Scud and loose cumuli; cirro-strati and woolly cirri. cirro-stratus and woolly cirri. thick cirrous haze and cir.-str, id. as id. Masses of scud and loose cumuli; cirro-strati. Seud ; loose cum., cir.-str., and cir.-cum.-str. Woolly cirri and cirro-strati ; seud and cum. near hor.€ Id. ; id. Scud and cirro-stratus. Id. Id. Id. Id. Scud and cirro-stratus. Id. Id. : Id. “2 1 0- D 10-0 Id. 54-2 a +1 ||0- i 10-0 Id. 0- 0- 0- 0- 0- 0- 0: 0- 0- 0- 0. tle 0 1 1 1 ii 1 1 1 2 1 1 0 1 1 1 1 2 2 1 1 5 7 8 5 7 2 4 2 8 8 3 +2 +2 2 ‘0 4 BO Peer eye meh HAODONNHNODNHHNAYE 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. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. BanRo- METER at 32°. in. 29-822 851 866 893 915 934 955 968 977 987 29-999 30-005 017 042 052 068 079 083 |} 13] 30-078 } 14 086 095 084 086 095 113 race Cre) -oo-c So fe nue Hovurty METEOROLOGICAL OBSERVATIONS, AUGUST 26—29, 1845. 225 THERMOMETERS. WIND. Clouds, Maximum Se.: C.-s. :Ci.,|| Sky Species of Cloud d Met logical R k > - movin clouded. pecies 0: ouds an eteorologica emarks, Dry. | Wet. | Diff. ae tas ies Aas a | a ) - Tbs. | Ibs. pt. pt. pt. pt. 0—10, 54-3 | 50-2 | 4-1|/1-0 |0-5 | 30 |—:30:—J 10-0 || Sky covered with cirro-strati, 54-8 | 50-8 | 4-0|/0-8 |0-4 | 29 ||—:30:—| 6-0 || Cirro-cumulo-strati; cir.-str.; patches of scud to N. © 56-6 |52-0 | 4-6]|1-2 |0-5 | 28 ||—: 0:— || 2-5 || Sheets of cirro-strati; patches of scud to S. (0) 58-1 | 53-2 | 4-9 || 1-6 | 1-2 0 || 0:—:—] 8-0 || Loose cumuli; cirro-strati; patches of scud to S. @ 60-0 | 54-3 | 5-7 |) 1-1 | 0-8 0 0:—:— 9-9 Id. ; id. 59-7 | 54-2 | 5-5 || 0-8 | 0-2 0 0:—:— 9-0 Id. ; id. 58-7 | 54-7 | 4-0] 0-5 | 0-4 2 0:—:— 9-9 Id. ; id. 60-2 | 54-8 | 5-4 | 0-4 | 0.3 3 0:—:— 9-0 Id. ; id. (s) 59-6 |54-8 | 4-8]|0-3 |0-2| 4 ||—:30:—] 8-5 || Cirro-cumulo-strati; cirro-strati. (2) 60-3 | 55-0 | 5-3 || 0-3 | 0-2 a3 0) — 8-0 || Cumulo-strati; cirro-strati; woolly cirri. © 59-7 | 54-4 | 5-3|/0-3 |0-2 | 6 1-5 || Cirro-strati; woolly cirri. © 59-4 | 53-7 | 5-7||0-3 | 0-1 4 || 28:—:—|]| 1-0 || Scud; cirro-strati and light cirri. (0) 59-0 | 54-7 | 4-3 || 0-2 | 0-1 Ao — eo 7-0 Detached cir.-str., rad. from NNW. ; cirri; ragged scud on Cheviot. © 53-3 |52-0 | 1-3]/0-2 |0-1 | 4 ||—:29:—]| 6-0 || Cirro-strati; woolly cirri and haze. 49-0 | 47-4 | 1-6||0-0 |0-0 | 30 5-0 Bands of woolly cir.-str., rad. from NNE. and SSW. ; cirrous haze. 49-3 |48-8 | 0-5 || 0-1 | 0-0 9-0 || Cirro-strati and haze. 50-2 | 49-4 | 0-8|| 0-1 |0-0 | 18 10-0 || Overcast. 50-3 | 49-6 | 0-7 || 0-0 | 0-0 | 20 10-0 Id. 48-3 | 47-8 | 0-5|/0-0 |0-0 | 20 1-0 || Clouds on horizon. 45-9 | 45-4 | 0-5|/0-0 | 0-0 | 26 1-0 || Cirro-strati; stratus on the ground, ») 43-5 |43-4 | 0-1]/0-0 |0-0 | 22 0-5 || Cirro-cumuli ; id. y 46-0 | 45-8 | 0-2||0-0 | 0-0 | 16 9-5 || Cirro-strati. y 46-3 |45-9 | 0-4||0-0 |0-0 | 22 ||—-: 1:—]| 9-5 || Cirro-cumulo-strati; clouds tinged with red to E. 46-9 | 46-3 | 0-6||0-0 |0-0 | 24 |} —: 1:—|]| 9-2 Id. ; cirro-strati. 48-0 | 47-3 | 0-7||0-0 |0-0 | 20 || 2: 1:—]] 5.0 || Loose cirro-strati; cirro-cumuli, 49-7 |48-8 | 0-9]/0-0 |0-0 | 24 |} 16: 2: 1 0-8 || Patches of loose scud ; loose cir.-str. ; cir.-cum.; all to E,© 53-3 |52-0 | 1-3|/0-1 |0-0 | 17 0-3 || Cirro-strati on S. horizon. © 58-5 | 55-3 | 3-2||/0-1 |0-0 | 15 0.2 Id. © 60-3 | 55-3 | 5-0||0-1 | 0-1 | 26 0-1 || Scud and cirro-strati on SE. horizon. (0) 62-7 | 56-8 | 5-9}|0-1 |0-1 | 20 0-2 || Seud, cirro-strati, and haze, on SE. horizon, oO 65-8 | 59-2 | 6-6||0-1 |0-1 | 22 0-2 Id., id., id. round horizon. © 67-9 | 59-8 | 8-1|/0-1 |0-1 | 20 ||16:—:—J|| 0-5 || Small cumuli; cirro-stratous bank ; cirrous haze to E.© 68-3 | 59-3 | 9-0)/0-1 |0-0 | 2 0-3 || As before. (0) 70-2 | 59-5 |10-7 || 0-0 | 0-0 0-5 || Small cumuli, cirri, and cirro-strati. (0) 70-2 | 59-1 |11-1]/ 0-1 | 0-1 2 0-5 Id., id., id. (0) 69-0 60-3 8-7 || 0-1 |0-0 | 19 0-3 Id., id., id. (0) 66-3 | 60-31) 6:0]| 0-1 | 0-1 | 21 0-2 || Cirri. (0) 63-2 | 59-0 | 4-2]/0-1 |0-1 | 24 1-0 || Woolly cirri; cirrous haze. 59-2 |56-0 | 3-2//0-1 |0-.0| 0 0-3 Id. ; id. 55-9 | 54-3 | 1-6|/0-1 |0-0 | 18 0-1 || Clear; one or two patches of cirrus. 53-0 | 52-0 | 1-0|/ 0-1 | 0-0 0-0 Id. 51-3 |51-0 | 0-3} 0-0 | 0-0 0:0 Id. 49-7 | 49-4 | 0-3] 0-1 |0-0 | 18 0-0 || Clear. 48-6 |48-5 | 0-1]/0-0 |0-0 | 20 0-1 Id.; haze on NE. horizon. 48-6 | 48-6 | 0-0]| 0-0 |0-0 | 16 0-2 || Cirro-strati and haze on EH. hor.; mist in the valleys. )) 52-6 | 52-4 | 0-21/0-1 | 0-1 | 24 9-02 || Dense fog ; a star visible in zenith. 53-9 | 53-7 | 0-21/0-2 |0-1 | 24 10-02 Id. ; objects invisible at # of a mile. 53-0 | 52-8 | 0-2|/0-1 |0-1 | 22 2-0 || Misty scud and cir.-str. round hor. ; fog clearing off.© 52-7 | 52-47| 0-3) 0-1 | 0.0 | 24 | 1-0 || Seud to S.; cirro-strati and cirri near horizon. (0) 57-6 eal 1-2}|0-1 |0-1 | 19 | 28:—:—]] 0-8 || Patches of seud ; cirri to NW. (0) 60-8 | 58-6 | 2-2//0-2 |0-1 | 18 |}25:—:—|| 0-8 Id. ; streaks of cirri rad. from N by E. © 65-1 | 61-4 | 3-7} 0-1 |0-1 | 21 || 26:—:28]) 4-0 || Loose scud ; cirri. fo) 67-0 | 62-3 | 4-7||0-2 | 0-1 | 18 || 27:—-:—)]] 9-5 |) Scud and loose cumuli; cirri. 69-6 | 64-6 | 5-0||0-1 |0-1 | 20 | 27:—-:—|| 9-7 Gas id. 2) 69-0 | 63-0 | 6-0]/0-1 |0-1 | 30 | 26: —:— 9-5 Id. ; id. 70-5 |63-0 | 7-5] 0-3 |0-2 | 28 | 26:—:—l|l 9-5 Id. ; id. MAG. AND MET. ops. 1845. , ‘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 eons of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 3L 226 | Gott Baro- Mean METER Time. I at 32°. | d. bh. || in. 29 3 | 30-116 4|| 122 5] 119 6. Uy, + fall 114 s || 128 9|| 135 10 || 140 11 145 12) 147 | 13 || 30-136 14 140 15 145 16 141 Pi has 18 142 19 | 150 20 159 21 167 22 164 25) 160 30 0 161 1] 148 2 144 3 141 4 | 140 5 | 130 om 126 7\| 125 s || 140 9 | 141 10 152 11 | 157 1A) 153 233) 30-175 3113 | 30-162 14 | 154 15 | 148 16) 137 17 | 124 18 125 19 121 20 | 123 21) 122 22 | 113 23 105 10 094 1 089 2 075 3 059 4 047 5 | 041 6 039 rf 048 8 064 THERMOMETERS. WIND. Maximum Dry. | Wet. | Diff. force in [Prom | 1h, | 10”. 2 = ie Ibs. | Ibs. | pt. 71-4 | 64-1 | 7-3 | 0-3 | 0-1 | 22 70-2 |63-2 |7-0 || 0-3 | 0-2 | 26 70-0 | 62-5 | 7-5 || 0-3 | 0-1 | 25 68-6 |61-8f/6-8 | 0-2 |0-1 | 22 64-8 |61-7 | 3-1 || 0-1 | 0-0 | 24 62-2 | 58-74) 3-5 || 0-2 | 0-1 | 24 57-8 | 56-0 | 1-8 || 0-2 | 0-1 | 22 55-8 | 54-5 |1-3 || 0-1 |0-1 | 22 52-6 | 52-1 |0-5 || 0-1 |0-0 | 18 51-8 | 51-7 | 0-1 | 0-0 |0-0 | 20 50-5 | 50-2 |0-3 |) 0-0 |0-0 | 19 50-2 | 50-0 | 0-2 || 0-0 | 0-0 | 24 48-9 |48-8 | 0-1 || 0-0 | 0-0 47-8 |47-7 | 0-1 || 0-0 | 0-0 46-9 | 46-7 | 0-2 ||0-1 |0-0 | 20 48-0 |47-6 | 0-4 ||0-1 |0-0 | 18 49-0 | 48-6 | 0-4 || 0-0 |0-0 | 20 54-1 | 53-5 | 0-6 || 0-1 | 0-1 60-0 | 58-8 | 1-2 || 0-1 | 0-2 | 24 63-7 | 60-8 | 2-9 || 0-3 |0-3 | 24 67-2 |61-8 | 5-4 || 0-3 |0-3 | 24 69-2 | 62-7 |6-5 || 0-4 | 0-4 | 25 71-0 | 63-7 | 7-3 || 0-4 |0-2 | 22 71-6 |64-5 | 7-1 || 0-4 | 0-2 | 21 72-6 | 64-6 |8-0 ||0-6 |0-3 | 24 70-7 |63-1 |7-6 || 0-5 | 0-4 | 28 69-3 | 63-4}|5-9 || 0-4 | 0-2 | 27 67-9 | 61-7 |6-2 || 0-3 | 0-1 | 28 64:8 |60-7|)4-1 || 0-3 | 0.3 | 27 62-5 |58-9 |3-6 ||0-3 | 0-1 | 22 61-5 |57-9 | 3-6 || 0-7 | 0-3 | 22 58-9 | 56-6 | 2-3 || 0-3 |0-1 | 23 57-9 | 56-0 | 1-9 || 0-1 | 0-1 | 24 53-7 | 54-6 | 1-1 ||0-1 |0-1 | 16 65-4 | 59-6 | 5-8 || 0-1 | 0-1 4 53-1 | 52-4 |0-7 ||0-6 | 0-0 54-0 | 53-4 | 0-6 || 0-0 | 0-0 44-8 | 54-0 | 0-8 || 0-0 | 0-0 55-0 |54-1 |0-9 || 0-0 | 0-0 55-0 | 54-0 | 1-0 || 0-0 | 0-0 | 24 55-0 | 54-1 |0-9 || 0-0 | 0-0 | 20 56-1 | 55-1 | 1-0 || 0-0 | 0.0 | 22 58-5 | 57-0 | 1-5 || 0-1 | 0-0 | 22. 63-0 |60-0 | 3-0 ||0-1 | 0-0 | 18 65-9 | 61-2 | 4-7 || 0-0 | 0-0 | 20 68-5 |62-7 | 5-8 || 0-1 |0-1 | 24 68-2 |62-1 |6-1 |}0-1 | 0-1 0 69-4 |63-6 |5-8 ||0-1 | 0-1 | 18 70-0 | 62-6 | 7-4 ||0-1 | 0-1 | 30 70-6 | 62-0 | 8-6 || 0-1 | 0-1 | 28 | 72-9 |63-8 |9-1 || 0-2 | 0-3 | 28 |67-7 |62.4 |5.3 10-4 |0.4 | 4 | 65-0 | 60-5 |4-5 ||0-3 10.2 | 6 62-0 | 58-7 | 3-3 || 0-4 |0.3 4 |58-2 156-3 | 1-9 ||0-6 | 0-5 3 i Clouds, Se.: C.-s.: Ci., moving from pt. pt. pt. 26:—:— 24:—:22 —:—:28 28:—:— Sky clouded. Hovurty METEOROLOGICAL OBSERVATIONS, AUGUST 29—SEPTEMBER I, 1845. Species of Clduds and Meteorological Remarks. Seud and loose eumuli, : (=) Seud ; cirri. fo) Loose cumuli ; cirri. fo) Id. ; id. (0) Loose cumuli; cirro-strati; cirri and haze round hor.@ Cirro-strati ; cirri and haze on horizon. | Td. ; id. Patches of cirro-stratus to N.; faint aurora. Id. ; id. Id. ; id. Haze and cirrous clouds to N.; faint aurora. Cirro-strati to N. Patch of cloud. Id. Cirro-cumuli ; cirro-strati; cirri; fog in hollows. Woolly, mottled, and linear cir. ; patches of cir.-cum. ; As before. @ = (cir.-str.; fog in hallows. Cirri ; cirrous haze and cirro-strati over the sky. s Seud ; cirri as before, with large feathers rad. from N. ©} Patches of scud ; woolly cirri; sheets of cirro-strati. ©| Seud, cirri, &c., as before. © [halo.6| Patches of scud ; woolly cir, and cir. haze; faint solar Thick woolly cir. ; cir.-str. ; cir. mass. Woolly cirri. 1@ee cirrous haze ; patches of cumuli. libs id. and cirro-strati. Woolly cirro-cumulo-strati; cirri; cirro-strati. Woolly cirri ; cirrous haze. OddoQ® ® Id. ; id. Id. ; 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. Ove { with a loose sort of cirro-stratous scud or cir.-cum.-str, Mass of cirro-stratus. Td. Id. Id. Cirro-stratous scud. Id. Id. Id., or large cirro-cumulo-strati. Cirro-cumulo-strati. s)t Id. Seud ; loose cumuli; cirro-cumulo-strati. Id. ; Id. Id. ( Id. Id. ¢ Id. ; hazy towards horizon. Seud; loose cumuli; hazy. Cirro-stratous seud. Id. Id. The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, B.= 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. a || Aug. 304 115 56™. A shooting-star to E., magnitude 2, passing, towards the N., over 20° in 2 or 3 seconds; the course inclined 10° to i the horizon. ] Gate. Hovurty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 1—3, 1845. THERMOMETERS. WIND. Dry. | Wet. | 55-7 55-2 55-1 54:8 AwWhARSCUARHONHHA HWSOAR? 42-6 42.4 38-4 37-4 37-3 39-9 41-4 41-5 40-7 42.9 49-7 54-0 55:8 57:8 58-0 60-2 61-2 59-3 59-8 58-0 54-1 51-9 51-1 51-1 51-4 51-2 51-0 53-0 53-9 52-3 53-0 52-4 51-0 48-4 47-4 47-0 47-2 47-4 50-4 49-8 48-3 47-9 48-0 47-4 Maximum force in Lh | 10™, PSIG MS Sie Ges Ll oe cee el ee ee cee ce ee oe ed From um] Nuno FHP R BS PORDRARKRAR AS ao to for) SCUNWWNW RON O 21 Clouds, Se. :C.-s. : Ci., moving from pt. pt. pt. Sky clouded. LIT IT1LSlSFool Efile fent-rteset=efin def | 88 Species of Clouds and Meteorological Remarks. Cirro-stratous scud. Id. Id. Id. Cirro-stratous scud. Id. Id. Id. Id. Id. Id. Misty seud ; cirro-stratous scud. Dense homogeneous mass of cirro-stratus. Id. ; fine rain”? Misty scud. Id.; rain”? Id. ; id. Cirro-stratous scud ; cirrous mass. Id. Scud ; cirro-cumulo-strati. Cirro-strati. Scud on horizon ; cirro-stratous scud. Cirro-stratous seud ; cirro-cumulo-stratus. Id. ; 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. Id: Cirro-stratus to N. Scud. Td. Id. ; cirrous haze to W., tinged with red. Cir.-cum.-str.; id. ; fog bank to E. Id. ; sheet of cirrous haze to S. Td. Id. ; patches of scud on horizon. Seud ; cirro-cumulo-strati. has: tr Bye cirro-strati. Loose cumuli; woolly cirri. Id. ; cirro-cumulo-strati. Id. ; id. Id. ; id. ; Id. ; id. ; Cirro-cumulo-strati ; cirrous haze. Id. ; reticulated cirri ; cirrous haze. Thick seud. Id. ; Very dark. Id. Id. stratus on the ground. cirrous haze to S. id. @@e@0008000 dark. Very dark. Id. Scud. BaRo- | Mean || METER a ime. || at 32°. L i - h. in. |] 1 9]/ 30-070 10 068 \} 11 068 | 12 062 | 13] 30-057 | 14 051 ie 15 045 | 16 043 i 17 042 18 049 19 049 20 068 ie 21 062 ee 22 076 } 23 078 ] 20 083 \ at 084 1 2 074 | 3] 070 } 4|| 062 WG 066 / 6 066 7|| 068 | 8 071 |) 082 10 080 1) 082 12 084 | 13] 30-082 14]) 083 15 086 | 16 079 le 080 | 1is|| 079 1 i9 085 20 090 val 088 22) 089 23// 081 Ol] 074 a 065 2) 047 3 032 4i 021 5 011 6|| 008 7 006 8] 016 | 9 028 10 032 1] 043 12 052 30-049 052 047 ept. 14 11h, __ Sept. 24 12h 5m—_25m, ing 45°. _ Sept. 2414» 5m, Shooting-star to SE., altitude 25°, moving eastward, magnitude 2. a Sept. 24 15) 5m, Shooting-star to E., altitude 5°, moving towards ESE., magnitude 1; at 6™, another to S. moving southward. Observation made at 114 10™, Five shooting-stars seen to SE., all at about 30° altitude, moving generally towards S., but the directions vary- 228 Hovurty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 3—5, 1845. ps THERMOMETERS. | WInpD. Glsaaie | ame Maximum Sepa Re IO he SES Species of Clouds and Meteorological Remarks | at 82°. || Dry. | Wet. | Diet. force in [yrroml) ™Ovine _ jclouded. pene fm oe 14, | 10, fe 5 ° lbs. | lbs. | pt. pt. pt. pt. 0—10. | 30-045 | 48-5 |47-6 | 0-9 || 0-0 |0-0 | 20 10-0 || Scud. 045 | 48-8 | 47-8 | 1-0 || 0-0 |0-0 | 20 10-0 || Cirro-stratous scud. 046 || 48-5 | 47-2 | 1-3 | 0-0 |0-0 | 20 || —:28:—| 10.0 GES cirro-strati. \| 055 | 49-4 | 48-3 |1-1 | 0-0 |0-0 | 22 |—:28:—|| 9.7 || Cirro-cumulo-strati. } 067 51-6 |49-7 | 1-9 || 0-1 |0-0 | 22 | —: 28;:— 9.9 Id. | 073 | 53-5 |49-9 | 3-6 | 0-1 | 0-0 6 2:30:—|| 10-0 || Scud, chiefly on horizon ; cirro-cumulo-strati. | 072 |55-0 | 50-6 |4-4 | 0-1 |0-0 6 2:28:—|| 9-9 || Masses of loose cumuli; cirro-cumulo-strati. 069 || 57-6 | 52-4 |5-2 |0-:0 |0-0 | 8 }) 2°:28:—| 10-0 des id. 072 | 56-6 | 51-0 | 5-6 | 0-1 |0-1 6 || 6:28:—] 9-5 inh id, | 077 155-1 | 50-4 |4-7 }}0-1 [0-1 | 4 || 4:—:—I]] 10-0 || Thick seud and loose cumuli, 074 || 55-8 | 50-8 |5-0 | 0-1 |0-1 4 10-0 || Thick cirro-stratous scud. 068 | 54-9 | 50-7 |4-2 | 0-1 | 0-1 6 10-0 Id. | 065 || 55-4 |50-6 |4-8 | 0-1 |0-1 | 10 || 28:—:—]| 10.0 Id. 060 | 55-0 | 50-5 | 4-5 | 0-1 | 0-1 8 || 28:—:—] 10-0 Ta. 059 || 53-7 | 50-3 | 3-4 | 0-2 | 0-1 4 || 28:—:—] 10.0 Id 058 | 52-7 | 50-2 | 2-5 | 0-1 | 0-1 8 || 28:—:—| 10.0 Id 061 || 51-9 |49-7 | 2-2 | 0-1 |0-0 f,|\|26)s——t— | 10-0 Id 064 || 50-5 |49-0 | 1-5 | 0-1 |0-1 | 31 10-0 Id 070 || 50-0 | 48-7 | 1-3 | 0-1 | 0-0 10-0 Id | 070 || 49-5 | 48-7 |0-8 | 0-0 |0-0 | 28 10-0 Id | 066 || 49-1 | 48-6 |0-5 | 0-0 |0-0 | 25 10-0 Id 30-057 || 48-9 | 48-3 | 0-6 || 0-0 |0-0 | 25 10-0 || Thick cirro-stratous scud. 053 || 48-9 | 48-2 | 0-7 || 0-0 | 0-0 10-0 || Seud and cirro-cumulo-stratus ? 046 | 49-2 | 48-4 |0-8 | 0-0 |0-0 | 25 10-0 Id. 041 | 48-7 | 48-0 |0-7 | 0-1 |0-0 | 25 10-0 Id. 035 | 48-2 |47.5 |0-7 | 0-0 |0-0 | 24 9-8 Id. ; sky to NE. f 034 || 47-2 | 46-5 |0-7 || 0-0 |0-0 | 20 | 4:—:—]| 9.5 || Loose ragged seud and cirro-cumulo-stratus. ! 036 || 47-7 | 47-0 |0-7 ||6-1 |0-0 | 12 |—: 3:—] 7-0 || Cirro-cumulo-strati; cirro-strati; loose scud. O 037 | 51-7 | 50-3 | 1-4 | 0-1 |0-0 8 |}—: 2:— 7-0 igh Ti id, O) 042 | 53-4 | 51-0 | 2-4 || 0-1 |0-0 4: 2:—)| 9-0 || Seud and loose cum. ; large loose cirro-cumulo-stratus. | 045 || 53-7 | 49-7 |4-0 || 0-1 | 0-1 4 2:—:—j]) 80 1iGeS cumuli; cirro-strati. } 046 | 54-8 | 50-3 | 4-5 || 0.2 | 0-1 6] 2:—:—] 9-0 Id. ; id. ; id. ; pat. of seud. } 046 || 55-3 | 49-7 | 5-6 | 0-3 | 0-3 7 || 2:—:—]) 9-8 || Seud and loose cumuli; cirro-strati; haze. | 049 || 54-0 | 48-8 | 5-2 | 0.3 | 0-2 6 ||\—: 2:—j 6-0 || Cirro-cumulo-strati ; ada id, O} 046 || 55-0 | 49.0 | 6-0 | 0-3 | 0-2 4 || 6:—:—]| 8-0 || Seud and loose cumuli ; 1 BS id, (0) 036 || 56-0 | 49-4 | 6-6 || 0-3 | 0-2 4 8:—:— 9-8 iGks id. ; id. 022 || 55-7 | 49.3 |6-4 0-3 |0-1 | 12 8:—:— 7-5 Id. ; id. 0 | 027 || 54-7 | 49-2 | 5-5 | 0-2 |0-1 | 10 | —: 8:—}} 5.0 || Masses of cirro-strati ; id. ; id. ©) i 030 | 53-5 | 48.1f| 5-4 | 0-2 | 0-1 7 \||\—: 6:—|| 2-0 || Cirro-stratous scud ; cirri to N, © 037 || 50-8 | 47-4 | 3-4 || 0-1 |0-1 | 20 | —:11:—]) 4-0 || Cirro-cumulo-strati ; id. 047 |49-0 | 46.9}) 2-1 || 0-1 |0-1 | 23 9-9 || Cirro-stratous scud. | 058 || 48-0 | 46.4 |1-6 | 0-1 |0-0 | 20 8-0 Id. i 057 || 44-8 |44-2 |0-6 | 0-1 |0-:0 | 8 0-2 || Clouds on E. horizon, } 062 || 41-8 | 41-1 |0-7 | 0-1 |0-0 | 20 0-0 || Clear. 066 || 38-9 | 38-5 |0-4 | 0-0 |0-0 | 20 0-0 Id. 30-072 | 38-7 |38-3 |0-4 | 0-1 |0-0 | 24 0-0 || Clear. i 072 | 38-3 |38-0 | 0-3 || 0-0 |0-0 | 18 1-0 || Cirro-stratus to N. 1 077 | 37-8 |37-4 |0-4 | 0-0 |0-0 | 18 9.5 || Scud and cirro-stratus. 4 080 | 40-4 | 40-0 |0-4 || 0-0 |0-0 | 20 9-5 Id. | 082 || 39-5 | 39-1 |0-4 | 0-0 | 0-0 | 22 | 8-0 || Seud; cirro-cumulo-strati. | 090 | 40-0 | 39.4 |0-6 || 0-1 |0-1 | 24 || 14:—:—J]] 9.0 || Cirro-stratous seud. | 097 | 41-7 |40-7 | 1-0 10-1 |0-0 | 15 || 14:—:— 9-8 Id. ; cirri. 093 || 44-7 |43-2 | 1-5 |10-0 |0-0 | 24 | 16: —:— 9-9 Id. ; id. 098 || 47-0 | 45-2 |1-8 | 0-0 | 0-0 | 20 | 16:—:—]] 10-0 Id. } 097 || 50-8 | 48-4 | 2.4 0.1 | 0-0 | 24 || 16:—:—]] 10.0 Td. R: 23 || 105 | 53-4 | 50.2 | 3-2 || 0.0 | 0-0 | 28 | 16:—:—|| 10.0 Id. a q 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 aration: Hovurty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 6—9, 1845. 229 THERMOMETERS. WIND. Maximum Sapna i. Sky Dry. . | Dig} force in |From clouded. Species of Clouds and Meteorological Remarks. 56-7 : . D B i ; Cirro-stratous scud. 58-0 ; +2 10-1 | 0- teen : Id. 58-3 c . E 713: : Seud and cirro-cumulo-strati; atmosphere very hazy. 59-3 . . . : 213: : Id. ; id. e 58-0 . . : ° : : . Loose cumuli and cirro-cumulo-strati ; id. e 56-8 : . 3 : ila: i Scud ; cumulo-strati; hazy atmosphere. D D : Cirro-cumulo-strati ; cumuli on horizon. atmosphere hazy. id. Thin sheets of cirro-cumulo-strati scattered over the sky. Cirro-strati. Id. Cirro-cumulo-strati. Id. Id. Id. ; cirri 2 Id., denser ; sky red to E. Cir.-str. scud ; cir.-cum.-str. ; very red to E. ; fog in the Cirro-cumulo-strati; cirro-strati. [hollows. Cirro-stratous scud ; cirrous mass. Seud ; thick cirrous haze and cirro-stratus. Id. ; id. Td. ; id. ; solar halo.@ Id.; thick cirrous haze. [S) Thick woolly cirri; cirro-stratus. e Id. ; id. [patches of scud. © Woolly cir.-cum.; cir.-str. with mottled edges; cir. haze; Woolly cirri; sheets of cirro-strati; cumuli. (0) Sheets of woolly cirri; cirro-cumuli and cirro-strati. © Id. ; id. Id. ; id. »)) Id.; id. »)) Id. ; id. ; sky in zenith. Cirro-strati; cirri. Id. Id. Cirro-strati. Scud and cirro-stratus. Scud ; cirro-strati. Id. ; id. Id. ; id. Loose scud ; cirro-strati. [cir.-str. and cir.-cum. Id. seems to form at an altitude of 15°—20°; Occasionally thin patches of scud; loose and dense masses As before. [of cirro-strati. Id. Patches of scud ; dense masses of cirro-strati. Id. ; id. [rain. Masses of scud and cirro-strati; occasionally drops of sky in patches. ay owynorwsonw Loose misty scud, moving rapidly. \ _ 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. oBs. 1845. 3M 30 Hovurty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 9—11, 1845. THERMOMETERS. WIND. Cl sé ouds, “a eas Maximum Be. Ors. 01.11 “Sky Species of Clouds and Meteorological Ri k | Time. at 32°. Dry. | Wet. | Diff. force in | Prom pri aMoudiad +: ‘ eT ae | 14. | 10™. | he in. 8 2 © |} lbs. | Ibs. | pt. |] pt. pt. pt. |] O—10. | 9 6) 29-675 | 60-9 | 58-4 | 2-5 || 1-7 |0-6 | 19 || 20:—:—|| 3-0 | Loose misty scud, moving rapidly ; cir.-cum.-strati. ©} 7 694 || 59-0 | 57-4 | 1-6 || 0-4 |0-1 | 20 |} 21:—:—}) 10-0 d.; id. i] 8 699 | 58-4 |57-3 | 1-1 |}0-3 }0-1 | 19 | 24:—:— 9-5 || Scud. | 9 716 || 59-7 | 57-4 |2-3 ||0-7 |0-1 | 24 9-9 || Id.; cirro-cumulo-strati. 10 726 ||58-4 |56-1 | 2-3 |/0-3 |0-3 | 24 9-0 Id. il 741 ||55-3 |54-3.|1-0 || 0-3 | 0-1 9 45 Id.; cirro-strati. 12 764 || 54-2 | 53-5 |0-7 0-1 |0-0 10-0 Td; id. 13 || 29-780 || 55-0 | 54-2 |0-8 || 0-1 |0-0 | 20 5-0 || Seud; cirro-strati. 14 805 || 51-6 |51-3 | 0-3 || 0-0 |0-0 | 20 1-5 Id. ; id. ; mist in the hollows. 15 825 | 53-4 |52-9 | 0-5 ||0-0 |0-0 | 22 10-0 1a be id. 16|| 958 |55-9 |54-8 | 1-1 /0-3 | 1-1 | 2 10-0 || Id.; rain’? iy 891 | 53-3 |52-5 |0-8 || 0-9 |0-5 1 2:—:—| 10-0 Id. 18 922 | 52-7 | 51-7 |1-0 | 0-5 |0-3 3 3:—:—|} 10-0 Id. 19 958 ||51-9 |51-0 |0-9 || 0-4 | 0-2 2 || 3:—:—|| 10-0 || Loose misty seud ; drizzling rain?” 20 974 || 52-0 |50-6 | 1-4 || 0-5 | 0-1 3 4:—:—|| 10-0 ig id. 21 || 29-997 || 52-6 |50-8 |1-8 ||0-3 |0-2 | 4 || 3:—:—]| 10-0 Tae id. 22 || 30-004 || 53-7 | 50-9 |2-8 ||0-7 |0-8 | 3 || 4:—:—]) 10-0 || Seud 23 019 || 53-7 | 50-3 | 3-4 || 0 8 |0-9 3 4:—:—|] 10-0 Id 10 O 018 || 54-6 | 51-6 | 3-0 || 0-6 | 0-4 3} 4:—:—|| 10-0 Id 1 021 ||/54-0 | 51-0 |3.0 |\0-7 |0-3 | 4 || 3:—:—| 10-0 || Id.; cirro-stratous seud. 2 020 || 54-3 | 50-7 | 3-6 || 0-3 | 0-2 it 3:—:—] 10-0 Tad. ; id. 3 015 || 54-9 | 50-4 | 4-5 || 0-4 | 0-2 a) 49—4-—) 10:0 Td. ; id. 4 024 || 54-6 | 50-3 | 4-3 10-5 | 0-3 8} 5:—:—]] 9-5 dts id. ; clouds breaking. 5 017 || 54-0 | 50-2 | 3-8 || 0-3 | 0-1 4] 5:—:—| 40 Td. 6 019 || 52-0 | 49-0 | 3-0 || 0-2 | 0-1 7 || 5:—:—]| 9-0 || Cirro-stratous scud. vf 019 || 50-8 |47-8 |3-0 || 0-3 |0-1 4 || 4:—:—|| 7-5 || Scud and cirro-stratous scud. 8 021 || 49-3 |47-0 | 2.3 | 0-2 | 0-1 5 10-0 Id 9 022 || 48-7 | 46-0 |2-7 || 0-2 | 0-1 4 10-0 Id. 10 023 ||49-0 | 46-8 |2-2 || 0-1 | 0-1 4 10-0 Id 11 020. | 49-2 |46-5 |2-7 |0-0 |0-2] 4 10-0 Id 12 019 || 48-6 |46-5 | 2-1 || 0-2 |0-0 4 10-0 Id 13 || 30-009 || 48-7 | 46-6 |2-1 || 0-1 |0-1 | 10 10-0 || Scud and cirro-stratous scud. 14 || 29.997 || 48-6 |46-9 | 1-7 || 0-1 |0-0 | 10 10-0 Id. 15 985 || 48-6 |47-2 | 1-4 || 0-0 |0-0 8 10-0 Id. 16 981 || 48-5 | 47-3 | 1-2 || 0-1 |0-0 8 10:0 Id. ; 17 978 || 48-6 |47-1 | 1-5 || 0-1 | 0-0 6 10-0 Id. 18 975 || 48-5 |47-3 | 1-2 || 0-0 |0-0 6 8:—:—|| 10-0 Td. ; slightest drizzle of rain, 19 967 || 48-7 |47-1 |1-6 || 0-1 | 0-1 7 || 8:—:—|\ 10-0 Id. 20 966 || 49-4 |47-7 | 1-7 || O-1 | 0-1 9 8:—:—|| 10-0 1G id. 21 959 || 49-9 | 48-3 | 1-6 || 0-1 |0-1 6 6:—:—|| 10-0 || Dense cirro-stratus and scud. 22 956 ||51-3 | 49-4 | 1-9 || 0-1 | 0-1 i 10-0 Id. 23 946 || 52-2 | 50-0 | 2-2 ||0-1 | 0-1 7\—: 7:—|] 10-0 Id. iL 0 937 || 54-3 |51-4 | 2-9 || 0-2 |0-1 6 10-0 Id. 1 928 ||54-8 | 51-7 | 3-1 || 0-1 | 0-1 8 10-0 Id. 2 918 || 52-5 |51-2 |1-3 10-3 |0-2] 4 9-9 Id. a 903 || 56-9 | 53-0 | 3-9 || 0-2 | 0-2 4 |—:14:— 8-0 || Cirro-cumulo-strati ; cirro-strati. 4 885 || 54-8 | 51-0 | 3-8 | 0-3 |0-3 7 ||\—:138:—]} 2-5 Tae id.; woolly cirri. fo} | 5 880 || 54-4 |51-0 | 3-4 ||0-4 | 0-2 4 ||—:16:— 8-0 6 883 || 53-2 | 50-2 |3-0 0-2 |0-2 |) 4 |14:—-:—]} 9-8 || Seud; cirro-stratous scud. 7 881 || 51-8 |49.4 | 2-4 ||0-2 | 0-1 3 | 14:—:—|| 10-0 Id. ; id. 8 886 || 51-0 | 48-9 | 2-1 || 0-2 | 0-1 6 10-0 Ids: id. 9 888 || 50-6 | 48-7 | 1-9 || 0-1 |0-1 if 10-0 || Id.; id. 10 887 || 50-3 |48-4 |1-9 ||0-1 |0-0 | 10 10-0 Id. ; id. 11|| 879 ||50-1 |48-5 |1-6 ||0-0 |0-0 | 12 10-0 |} Id.; id. 12 881 || 49-7 |47-8 | 1-9 ||0-0 |0-0 | 18 10-0 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 | motions of the three strata of clouds, Sc. (scud), (.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 7 Hourty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 11—14, 1845. 231 THERMOMETERS. WIND. Clouds, ERO: ean Se.:O.-8.: Ci), Sky Shas ; ae aeaniealpacrs cae Aa movin g | clouded. Species of Clouds and Meteorological Remarks. rom 14, |10™, | in, Ee s Ibs. | Ibs. | pt. || pt. pt pt. 0—10. | 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. | 857 || 49-0 |47-9 | 1-1 || 0-0 | 0-0 10-0 Id.; very slight drizzle. } 848 || 48-9 | 47-8 | 1-1 ||0-0 |0-0 | 22 10-0 || Thick seud and cirro-stratus. 849 || 49.0 | 48-0 | 1-0 || 0-0 | 0-0 10-0 Id. 858 | 49-2 | 48-2 | 1-0 || 0-0 | 0-0 8 ||16:—:—1|| 10-0 || Dense seud and cirro-stratous scud. 854 || 51-3 | 49-1 | 2-2 |0-0 |0-0 | 30 || —:17:—|| 9-9 || Cirro-cumulo-stratus. e@ | 858 | 54-7 | 51-3 | 3-4 |}0-1 |0-1 | 2 |—:17:—|| 8-0 las; scud to W. e | 862 || 56-2 |52-2 |4-0 | 0-1 |0-0 | 14 |—:17:—|| 9-9 || Cirro-cumulo-strati and cirro-strati. e 854 | 58-2 |53-5 | 4-7 || 0-1 |0-1 | 14 }}—:18:— 9-9 || Cirro-cumulo-strati. 20 61-4 | 56-2 | 5-2 |/0-2 |0-1 | 15 | 18:—:—)] 8-5 || Loose eumuli; cirro-strati. e@ » 1 60-6 |55-0 | 5-6 ||/0-2 |0-1 | 18 || 17:—:—|) 40 Id. fo} 2 62-2 |55-4 | 6-8 ||0-3 |0-1 | 20 || 16:—:—|| 6-0 Id., with a peristaltic motion. 0) 3 64-4 |57-0 | 7-4 ||0-2 | 0-1 | 23 | 16:—:—|| 2-5 Id. ; very hazy on E. and S. horizon. © 4 63-7 |56-4 |7-3 0-1 [0-1 | 18 |20:—:—|| 3-5 Ia; id. ro) “3 61-5 |56-5 | 5-0 ||0-1 |9-0 | 20 3-0 Id. ; id. (0) 6 58-9 |55-4 | 3-5 0-0 |0-0 | 16 2-5 || Patches of scud and cir.-cum.-str.; much atmospheric YA 55-3 |53-0 | 2:3 ||0-2 |0-2 | 18 ||22:—:—|| 4-0 || Seud; haze. [haze. © 8 51-2 |49-8 | 1-4 || 0-3 |0-1 | 16 1-0 das wid; ») 9 50-9 | 49-6 | 1-3 | 0-0 |0-0 | 24 0-3 || Haze on horizon. y 10 48-8 |48-0 | 0-8 || 0-0 | 0-0 | 24 || —:18:—|| 2-0 || Cirro-cumulo-strati to S.; haze on horizon. ») 1 46-0 |45-7 | 9-3 |/0-1 | 0-0 | 18 0:5 || Haze on horizon. >) 42-9 | 42-5 | 0-4 |10-1 | 0-0 | 18 2.5 || Cirro-cumulo-strati to S.; haze on horizon. > 43-2 | 42-9 | 0-3 10-0 |0-0 | 17 6-5 Cir.-cum--str., rad. from SW by W.; haze on hor,; mist on the ground; 43-5 | 43-3 | 0-2 0-0 |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 | 0-8 | 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:—} 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 Id. ; id. 52-7 |51-1 | 1-6 ||0-0 |0-0 | 28 || _-:18:—|| 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:—:—|| 10-0 || Seud andloose cum. ; dense cir.-str. seud and cir.-str. 60-1 |56-8 | 3-3 | 0-0 | 0-0 | 16 | 18:—:—|| 10-0 || Patches ofscud; 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:—}| 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. 158-5 |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 Id. ; 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 |51-3 | 2-5 | 0-1 | 0-1 | 18 10-0 Id. 54-6 |52-1 | 2-5 |/0-5 |0-2 | 15 10-0 || Cirro-strati and scud ? radiating from SW. E = é " 4 Sunday—Loose eumuli ; cirro-cumulo-strati and wooll i. ail CEI Rater ate 2 IR a ra (a { er: slight showers occasionally. z | 43 }/29-191 || 37-0 | 36-7 |0-3 || 1-1 | 0-0 0-8 |] Masses of scud to SE. ») 14]}_ 185 || 37-2 |36-9 | 0-3 ||0-0 |0-0 | 22 0-2 || Clouds to E. d 182 || 35-4 | 35-2 | 0-2 ||0-0 | 0-0 | 20 0-0 || Very clear. y 176 || 34-7 | 34-5 | 0-2 ||0-0 |0-0 | 22 0-0 Td. »)) 187 || 33-4 | 33-2 |0-2 || 0-0 |0-0 | 22 0-2 || Cirro-stratus and haze on E. horizon. ») 198 || 34-2 |34-0 | 0-2 ||0-0 |0-0 | 22 0-5 || Cir.-str. and cirri; hoar frost; mist rising from the river. le direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= §,.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. ‘Sept. 13411, Observation made at 11 8™, fl THERMOMETERS. || WIND. Clouds Gott.” || Baxo- 3 Se.: C.-8.:Ci.,| Sk Mean || METER Maximum | % . = aeiaea Species of Clouds and Meteorological Remarks. Time. || at 32°. Dry. | Wet. | Dif. | force in |pyom jes y | 1s. \10™, a h in. s 3 ° | lbs. | 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. : 0} | 20 21) | 38-9 | 38-7 | 0-2 | 0-1 |0-1 | 20 || —:—:20]| 1-0 Td. (0) [WSW. ; haze.@] 21|| 219 | 44-3 | 43-7 | 0-6 || 0-1 |0-0 | 25 4.0 Id. ; radiating from ENE. and | 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 8.0 23 235 || 55-8 | 51-6 |4-2 || 0-1 |0-1 | 20 | 24:—:22]) 4-0 || Loose cum. ; linear, curled, and woolly cir. ; portion of 1530 233 || 57-6 | 51-6 |6-0 || 0-3 |0-1 | 23 || 22:—-:—|| 7-0 || Loose cumuli; cirri as before. © {solar halo.@} 1 229 || 58-7 | 52-4 | 6-3 || 0-3 |0-1 | 20 | 22:—:—} 7-0 Id. ; cumuli; cirro-strati; woolly cirri. 2 227 || 59-2 | 51-6 | 7-6 || 0-2 |0-1 | 30 | 22:—:— 6-5 Td. ; ro id. ; id. 3 227 || 58-6 | 51-6 | 7-0 | 0-1 |0-3 | 21 || 21:—:— 8-2 1h id.; cirri. 4 230 || 58-7 | 51-8 | 6-9 | 0-7 10-3 | 21 || 20:—:—}]} 8-5 Id. ; id.; id.; cirro-strati. 5 238 || 54-8 | 50-4 | 4-4 | 0-5 |0-1 | 24 ||20:23:—1|| 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.; nt great piles of cumulo-strati. © cs 254 || 50-5 | 48-3 | 2-2 | 0-0 |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 Td. ; 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 ground. 16 290 || 42-5 | 42-0 | 0-5 || 0-1 |0-0 | 22 0-0 || Very clear. ) 17 303 || 42-8 | 42-3 |0-5 || 0-2 |0-1 | 24 0-2 || Streak of cirri on E. horizon. y [Cheviot. ) } 18 307 || 42-0 | 41-4 | 0-6 || 0-2 |0-1 | 26 0-5 IGP cirro-strati ; scud on 19 319 || 42-0 | 41-0 | 1-0 ||0-0 |0-0 | 20 || 20: —: 26 1-0 || Scud to W.; woolly and mottled cirri. ( 20 328 || 44-9 | 44-1 | 0-8 | 0-2 |0-1 | 18 || 20:—:—]| 2-5 || Loose seud to S.; patches of cirrus. © [quickly.@ 21 335 148-9 | 47-4 |1-5 10-3 |0-3 | 20 || 19:—:26 1-2 || Loose scud on hor, ; flame-like cir. ; both strata movin 22 340 | 51-3 | 49-0 | 2.3 || 0-3 |0-3 | 24 || 20:—:—]] 2-0 || Masses of scud and loose cum. ; cir.-str. near hor. 23 330 || 54-3 | 51-0 | 3-3 ||0-5 |0-5 | 18 || 20:—-:—]] 7-0 || As before. O} 16 0 315 |) 55-8 | 50-8 | 5-0 || 0-6 | 0-3 | 18 | 21;:—:25 5-0 || Seud and loose cumuli; cirri and cirrous haze. 1 308 || 58-0 | 51-8 | 6-2 ||0-5 |0-4 | 20 || 21:—:—J| 8-0 || As before; traces of a solar halo. 2 294 | 58-5 | 52-2 |6-3 || 0-9 |0-4 | 20 | 21:—:— 9-0 Id. € 3 278 || 60-0 | 53-0 |7-0 || 0-5 |0-2 | 21 |20:26:—|| 9-0 GBS cirro-cumulo-strati. ‘ 4 264 || 57-6 | 50-2 | 7-4 || 0-6 |0-2 | 20 18:24: — 9-8 at ae id. 5 250 || 58-0 | 51-3 |6-7 || 0-3 |0-1 | 18 || —:24:—J|) 9-7 || Cirro-cumulo-strati; loose cumuli to 8, 6 242 | 56-3 | 50-4 | 5-9 | 0-1 | 0-0 —:24:—|| 9.0 Td. ; woolly cir.-cum. ; cir.-str.; haze 7 246 || 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:—}} 9-8 || Cirro-cumulo-strati ; id. 9 222 || 48-6 | 47-0 | 1-6 ||0-0 |0-0 | 31 || —:24:— 9-8 Id. ; id, i 10 217 || 46-7 | 45-7 |1-0 ||0-0 |0-0 | 24 || —:24:— 9-9 Id. } 11 203 | 45-9 | 45-2 |0-7 ||0-1 |0-0 | 16 |—:23:—]} 9.8 Td. >} 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 12%. 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 ? 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. 5 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:—|| 9-9 || Cirro-cumulo-strati and cirro-strati. 21 071 | 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. 5 i 23 | 29-009 || 54-7 | 53-2 |1-5 0-1 |0-1 | 3 || —:20:—]) 9-9 Id. ; patches of seud. 17 0} 28-983 || 54-4 | 53-8 |0-6 | 0-1 |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 Id. ; id. ; rain! : 2 898 || 54-4 | 54-2 |0-2 | 0-1 | 0-2 3 || 4:—:—|! 10-0 || Loose seud; dense mass of cirro-stratus; rain'—* Hourty MErrEoroLoGiIcAL OBSERVATIONS, SEPTEMBER 14—17, 1845. 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. (send), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Hovurty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 17—19, 1845. 233 | THERMOMETERS. WIND. Clouds Gott. | Baro- akan Se.:C.-8.:Ci,|] Sky = aieeal Dry. | Wet. | Dit ai nein clouded. Species of Clouds and Meteorological Remarks. | 1, |10™, | q A h in. e : 2 Ibs Ibs. | pt. pt. pt. pt. 0—10. 7 3 || 28-873 || 55-7 |55-2 |0-5 | 0-2 |0-2 | 3 || 6:20:—|| 10-0 |} Loose misty scud; thick cir.-str. scud; both currents 4 852 ||56-6 |55-8 |0-8 ||0-1 | 0-2 | 12 6:20:—|| 10-0 || Patches of loose seud ; thick seud. [moving rapidly. 5 841 || 60-5 |58-6 | 1-9 || 1-2 |0-8 | 18 ||20:21:—|| 9-0 || Loose misty scud; cirro-cumulo-strati and cirro-strati. 6 846 ||59-3 | 56-9 | 2-4 || 1-1 |0-6 | 20 || 20:21:18 9-2 id= cir.-cum.-str. ; wo. cir. ; showers around. 7 848 ||57-7 |55-5 | 2-2 || 0-8 | 0-3 | 20 || 20:—:— 9-2 Id. ; id. ; id. ; id. i 8 838 || 56-1 | 54-6 |1-5 || 0-5 |0-3 | 19 5-0 ids; nas id. } m 9 844 | 56-9 |56-0 |0-9 ||0-7 |0-2 | 19 9-5 likes id. ; showers”? > | 10 836 || 56-7 | 56-2 |0-5 ||0-3 | 0-1 | 19 10-0 || Scud; rain®® 7 il 833 || 56-6 | 56-1 |0-5 || 0-3 |0-1 | 20 10-0 Id.; cirro-strati; cirro-cumulo-strati. 1 12|| 826 |57-0 |56-0 |1.0 0.5 |0-8 | 19 10-0 || Ia: id; id. ; drops of rain. ! 13 || 28-821 || 56-3 | 55-1 |1-2 | 1-3 | 1-0 | 20 10-0 || Scud ; cirro-strati; cirro-cumulo-strati; drops of rain. 14 830 ||55-1 | 53-7 | 1-4 || 1-9 | 0-4 | 20 || 20:—:— 5-0 || As before ; drops of rain from a thin hazy cloud. ») 15 838 || 53-8 | 52-4 | 1-4 || 1-2 | 0-7 | 19 || 20:—:— 8-0 || Seud. } 16 849 | 53-6 | 51-8 | 1-8 || 1-1 |1-8 | 18 1-0 || Scud and loose cumuli. y 17 836 | 51-6 | 50-3 | 1-3 || 0-9 |0-3 | 18 2-0 Id. ») (rain. 18 837 | 52-2 |50-7 |1-5 ||0-5 |0-2 | 19 || 20:—:—]| 9-9 || As before, with cir.-str. and cir. haze on hor. ; drops of 19 850 || 51-5 | 50-2 |1-3 ||0-7 |0-1 | 19 || —:20:—|| 6-0 || Cir.-str. seud; piles of nimbi on hor. ; very black to SE. 847 || 52-6 | 50-8 | 1-8 ||0-6 |0-1 | 18 |} 19:20:— 9-5 || Scud; cirro-stratous scud; cirri; cumuli on horizon. 841 || 56-7 | 53-7 |3-0 || 0-3 | 0-2 | 16 || 18:22:— 9-5 Id.; cirro-cumulo-strati; cirro-strati. (0) 830 || 57-0 | 53-4 | 3-6 || 0-6 | 0-2 | 16 || 18:—:— 9-9 Td. ; id. ; id. 818 | 60-0 | 55-8 | 4-2 || 0-4 |0-3 | 18 || 19:—:—]] 9-9 || Cirro-stratous scud ; loose scud on hor. ; cirro-strati. 796 ||58-9 | 55-7 | 3-2 ||0-3 | 0-3 |14 v.|/19:—-:—]| 10-0 Id. ; loose scud; thick cirro-stratus. 785 || 56-0 | 54-4 | 1-6 || 0-3 | 0-1 19:—:—|| 10-0 || Scud; cirro-stratous scud. 781 || 58-0 | 55-7 | 2-3 |) 0-1 | 0-1 6 ||19:—:—]] 10-0 |] Cirro-stratous scud ; loose seud; thick cirro-stratus. 784 || 60-4 |56-9 |3-5 || 0-1 | 0-1 | 26 ||22:22:—J]} 9-8 |] Scud; cirro-cumulo-strati; showers occasionally. 790 || 58-4 | 55-7 |2-7 || 0-1 | 0-1 | 24 || 22:—:—]] 10-0 Id.; cirro-stratous scud ; cumulo-strati to N. 796 || 56-3 | 55-2 | 1-1 ||0-1 |0-1 | 20 || 22:—:— 9-9 Id. ; id. 3 rt Pee rain” 828 || 56.4 | 54-4 | 2-0 |}0-1 |0-1 | 19 ||22:22:—|| 10-0 || Thick cirro-stratus and scud. 854 1154-8 | 53-4 | 1-4 ||0-0 | 0-0 | 20 || 23:23:—]| 9-9 Id. 876 || 53-4 | 52-1 | 1-3 |/0-3 |0-1 | 22 10-0 Id. 894 || 52-8 | 51-2 | 1-6 |/0-3 |0-2 | 20 9-9 Id. 910 || 52-4 | 50-8 | 1-6 || 0-3 | 0-1 | 22 10-0 Id. 923 || 52-3 | 50-3 | 2-0 || 0-2 | 0-2 | 20 10-0 || Scud and cirro-strati. ) 930 || 51-0 | 49-2 | 1-8 || 0-3 |0-3 | 20 || 22:—:—J]} 10-0 Id. ; cumulo-strati. ) 28-931 || 50-5 | 48-7 | 1-8 ||0-2 |0-2 | 18 |/22:—:—J] 9-0 || Scud; cirro-cumulo-strati. = 928 || 50-7 | 48-8 | 1-9 || 0-2 | 0-2 | 20 10-0 Id. 924 ||50-2 |48-6 | 1-6 ||0-1|0-0 | 9 10-0 Id 935 || 49-8 |48-8 | 1-0 ||0-1 |0-0 | 2 10-0 Id.; rain? 28-967 || 48-8 | 48-3 |0-5 || 0-5 | 1-7 0 10-0 Id.; rain? + 29-035 || 47-7 | 46-7 | 1-0 || 1-7 | 0-9 | 29 ||}30:—:—]} 10-0 Td. 098 || 46-5 | 45-1 | 1-4 || 2-0 |1-3 | 29 ||30:—:—]}| 10-0 || Loose scud; dense homogeneous cirro-stratus. 151 | 47-0 | 45-4 | 1-6 || 1-6 | 0-6 | 29 || 29:—;— 9.9 Td. 5 id. ; sky to N. 200 | 49-2 | 46-1 | 3-1 || 1-4 | 0-7 | 28 || —:29:— 9-5 || Mass of cirro-stratus and cirri; scud on horizon. 249 | 50-3 | 46-6 | 3-7 || 1-8 |1-1 | 29 ||29:28:—]] 9-8 |] Masses of scud ; cirro-strati ; cirro-cumulo-strati. 277 | 53.1 | 47-6 |5-5 |] 1-8 |1-5 | 28 ||129:28:—J]| 8-5 |] Masses of scud and loose cum. ; cir.-str., woolly cirri, 317 || 54-4 | 48-0 | 6-4 | 1-5 |0-5 | 29 ||29:—:—]| 7-0 |] As before. (0) [and cirrous haze. © 353 || 54-5 | 47-6 |6-9 || 1-5 |0-2 | 28 |/29:—:—]| 7-0 Id. (0) [a solar halo.© 382 ||57-1 | 49-0 |8-1 ||0-7 | 0-8 | 29 ||29:—:—_|] 5-0 |] Masses of send and loose cum.; linear cirri; portion of 414 || 56-1 | 48-4 |7-7 ||0-7 |0-4 | 28 ||29:—-:— || 4.0 || Loose cumuli; patches of cirri. 445 ||56-5 |48-0 | 8-5 ||0-4 |0-3 | 28 || 29:—:—]| 4.0 Id. ; id. 437 || 56-3 | 48-4 | 7-9 ||0-4 |0-4 | 30 ||}28:—:—]| 7-0 Id. 499 || 53-4 | 47-5 | 5-9 ||0-1 |0-1 | 28 || 28:—:—|| 2-0 Td. ; cumulo-strati to 8. ; haze. (0) 534 | 49-3 |46-0 |3-3 | 0-1 |0-0 | 28 ||28:27:— 9-0 Td::; id. ; cirro-strati. 568 | 50-0 | 47-0 |3-0 || 0-1 | 0-1 0 9-2 || Scud and cirro-strati. 594 | 49-0 | 45-4 |3-6 || 0-1 |0-1 | 20 5-0 | GES very dark clouds to E. 0-1 |0-1 | 23 | 3-0 |] Seud and cirro-cumulo-strati. * } - 10 612 || 46.8 | 43-8 | 3-0 ye Pe ae 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. oBs, 1845. 3N 234 Hovurty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 19—22, 1845. sie i, THERMOMETERS. WIND. Clouds, Pt Mean || METER Maximum ee: oy Guana Species of Clouds and Meteorological Remarks. \ Time. || at 32° Dry. | Wet. | Diff. force in |Prom pig x 1h, )10™, f a. bh. in. = ° ° lbs. | Ibs. | pt. |] pt. pt. pt. |} 0-10 Ip 19 11 || 29-688 || 41-3 | 40-4 | 0-9 || 0-1 0-1 | 26 7-5 || Thin cirro-eumulo-stratus. BaF 12 645 || 42-3 | 40-8 | 1-5 1 |0-0 | 17 ||—:21:—|| 7-0 || Thick cirro-cumulo-stratus. } 13 || 29-659 || 38-8 | 38-3 | 0-5 || 0-0 0-0 | 12 0-5 || Thick cirro-eumulo-stratus on hor. ; faint lunar cor. )] 14 671 || 37-7 |37-3 | 0-4 |} 0-0 [0-0 | 20 0-3 id>s wel. | 15 674 || 35-2 |34-8 |0-4 || 0-1 |0-0 | 20 0-2 TA: ‘d. yt 16 670 || 34-2 |34-0 0-2 ||0-0 |0-:0 | 6 |—:20:—| 0-8 Id. to SW., and on E. hor.) 7 662 || 33-6 | 33-1 |0-5 ||0-0 |0-0 | 20 |} —: 23:—|| 3-0 || Thincir.-cum.-str.and cir.,rad. from WN W.; lun. cor. }- 18 664 || 36-8 | 36-4 | 0-4 || 0-1 |0-1 | 21 }—:20:—]) 9-0 Cir-cum.-str., thick to SW.; bright window of sky to E. } 19 672 ||38-6 | 38-0 |0-6 ||0-1 |0-1 | 28 |19:—:—]) 9.0 Seud ; cir.-str.; cir. toS.; cum. to E.; rainbow 185 42m, 20 667 ||42-0 | 41-3 |0-7 ||0-1 |0-0 | 18 | 20:—:23}) 8-5 Loose scud; woolly cirri; cumulo-strati to NE. (9) 21 662 | 45-3 |44-3 |1-0 || 0-0 |0-0 | 30 || —: 22:22) 7.0 Woolly cirri, cirro-strati, and cirrous haze. fo) 22 657 ||49-4 47-6 | 1-8 || 0-1 0-0 10 10-0 Mass of cir.-str. ; cir. haze; patches of scud to S. ; faint solar halo. @ 23 641 || 54-0 | 50-6 | 3-4 || 0-0 |0-0 | 30 | 17:—:— 9-0 || Loose cumuli; woolly cirri and cirrous haze. oe} 20 0 623 ||56-8 |51-0 |5-8 || 0-4 | 0-4 | 16 /18:—:—|] 9.0 Seud and loose cum. ; cir.-str.; cir. haze; woolly cir.6} 1 600 ||56-3 |50-0 |6-3 || 1-2 |0-8 | 14 9-8 || Thick cirrous mass ; loose cumuli; solar halo. (2) 2 581 |57-7 |51-5 |6-2 || 0-2 | 0-5 | 16 || 20:—:—] 10-0 Send ; cirro-cumulo-strati ; cumuli. @ 3 555 ||57-7 | 51-4 |6-3 | 0-8 | 0-2 | 18 || 20:—:—|| 10-0 Id.; thick mass of cirro-stratus. 4 535 ||56-0 {51-0 |5-0 0-5 |0-4 | 17 | 20:—:—|]] 10-0 || Id.; id. 5 515 55-4 |51-0 [4-4 || 0-4 ]0-1 | 14 [19:—:—]] 9-9 || Id.; id. 6 504 53-6 | 49-6 |4-0 | 0-6 |0-4 | 14 | —:18:—]| 9-9 Cirro-stratous seud ; cirro-strati; cirrous haze. 7 || 4s2 |\526 |48-9 |3-7 ||0-4 |0-3 | 14 || —:18:—]} 10-0 Id. ; id. ; id. 8 470 52-6 | 49-3 |3-3 ||0-8 |0-3 | 14 10-0 Id.; id.; drops of rain. 9 440 || 52-6 |49-6 |3-0 || 0-7 |0-4 | 14 10-0 || Dark masses of scud and cirro-strati; id. 10 412 |52-0 |49-6 | 2-4 || 0-4 |0-4 | 15 10-0 Id. 11 379 || 52:8 |50-4 |2-4 0-8 |0-9 | 15 10-0 Id. ; id. 12 353 152-7 |50-9 | 1-8 || 1-2 |0-7 | 14 10-0 || Scud and cirro-stratus ; a slight shower since 11%. | : se = ‘ Sunday—Overeast with loose cum. scud and eir.-cum.- 23}|| 29-240 || 57-4 | 55-0 | 2-4 1-2 ]O-1 | 22 | 18:—:—} errr \ str. ; showers ; continuous rain in the evening. 21 13 || 29-222 |) 46-9 |45-2 |1-7 || 3-3 | 2-3 | 30 10-0 || Dense mass of scud and cirro-stratus. 14 238 || 45-0 | 43-4 |1-6 | 3-2 |3-3 0 10-0 Id. ; rain! 15 262 || 44-4 | 42-2 |2-2 || 3-6 | 2-0 0 10-0 Id. ; rain?” 16 279 || 44-2 |42-0 |2-2 || 2-7 | 1-5 0 10-0 Td. ! 17 308 || 44-2 | 42-0 | 2-2 || 1-9 | 0-5 0 10:0 Id:; passing showers. | 18 329 ||44-4 |42-1 [2-3 || 1-4 | 1-0 | 31 10-0 || Loose scud ; dense cirrous mass ; rain”? ; 19 360 | 44-5 | 42-2 |2-3 || 1-4 |0-3 | 30 || 0:—:—]| 10-0 || Scud; drops of rain. | 20 380 || 44-3 | 42-1 |2-2 | 0-7 | 0-3 | 30 0:—:—|| 10-0 TId.; rain’? ! 21 420 ||45-3 |42-9 |2-4 ||0-6 |0-3 | 30 | 31:—:—]| 10-0 || Id.; mass of cirro-stratus ; drops of fine rain. 22 436 || 47-0 | 44:3 |2-7 10-5 |0-8 | 30 | 0:28:—|]| 9-9 Loose scud ; cirro-cumulo-strati. 23 466 || 49-0 | 45-5 |3-5 || 1-5 | 0-4 | 28 9-9 Id. ; id. 22 0 487 ||48-7 | 44-0 |4-7 1-6 |1-2 | 27 || 0: 26:—] 10-0 Id. ; id. 4 1 517 || 50-0 | 43-9 |6-1 || 1-6 | 1-4 | 28 || 30: 22:— 9-0 dats id, 2 521 |51-4 |44-2 |7-2 || 2-8 | 2-6 | 29 || 29:—:—|| 7-0 Thick seud and cum. ; nimbus to N.; cir.-cum.-str. ©} 3 565 | 48-9 |43-1 | 5-8 || 1-2 |0-6 | 28 ||29:26:—|| 8-0 |) Loose cumuli and cumulo-strati ; cirro-cumulo-strati. | 4 594 ||48-1 |44-2 | 3-9 || 0-8 |0-1 | 28 || 29: 26 :— 9-0 Id. ; id. 5 625 || 47-6 | 43-2 | 4-4 ||0-6 |0-1 | 30 | 30:26:—] 8.0 Id. ; id. S 6 661 || 45-3 |41-7 | 3-6 || 0-6 0-4 | 30 || 28: 26:— 6-0 Scud; loose cum, and cum.-str. ; nimbi to E, and S., falling in rainy 7 636 ||43.0 |40-0 |3-0 | 0-2 |0-0 | 28 ||26:—:—|| 7-0 || Cumulo-strati; cirro-strati; cumuli. | 8 700 || 40-6 | 38-0 |2-6 || 0-1 |0-1 | 26 2.5 || Seud and cirro-strati on horizon. d 9 733 || 37-5 |35-8 |1-7 ||0-1 |0-1 | 24 0-2 || Very clear; haze on S. horizon. | 10 754 || 34-8 |33-0 | 1-8 || 0-1 |0-1 | 20 0-2 Id. ; id. il 777 \\ 36-5 | 34-8 |1-7 ||0-1 |0-1 | 22 0-1 || A few patches of cirrous clouds on horizon. ) 12 790 || 36-5 |34-6 |1-9 | 0-1 |0-1 | 20 0-0 || Very clear. ) | 13 || 29-803 || 33-7 |32-4 | 1-3 ||0-1 |0-0 | 22 0-0 || Very clear. ) | 14 822 || 35-0 | 33-1 |1-9 |/0-1 |0-0 | 22 0-0 Id. ) 15 841 || 33-7 | 32-3 | 1-4 ||0-1 |0-0 | 21 0-0 fd.\; hoar-frost. ) 16 854 || 32-9 ]31-6 | 1-3 ||0-1 |0-0 | 20 0-0 Id. ; id. ) The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0; B87) 85= 165 Wee 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%. The clouds somewhat cymoid, and moving rather quickly. Se pt. 214 19%. Observation made at 194 5™. Hovurty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 22—25, 1845. 235 THERMOMETERS. WIND. Clouds | Gott. || Bano- g Se. :C.8.:Ci.|| Sk } Mean || METER Maximum eee 7 hese Species of Clouds and Meteorological Remarks. Time. || at 32°. || Dry. | Wet. | Diff. force in [Fyrom yee 3 14, ) 102, 4 d h. in. 2 2 2 lbs. | lbs. | pt. || pt. pt. pt. 0—10. 722 17 || 29-868 || 34-1 | 32-6 | 1-5 || 0-2 | 0-1 | 21 0-2 || Belt of cirro-stratus to E.; hoar-frost. | 18 888 || 31-7 | 30-8 | 0-9 || 0-1 |0-1 | 20 0-5 || Cirro-cumulo-stratus on N. and E. hor. ; hoar-frost. ) , 19 907 || 33-7 | 32-2 | 1-5 || 0-1 | 0-1 | 21 |} —:30:— 2-0 Id. ; cum.,-str. on E. hor. ; hoar-frost on the 20 934 || 36-0 | 34-3 | 1-7 || 0-1 |0-1 | 24 0-2 || Cumulo-strati on E. horizon. (0) [ground. © 21 951 || 41-4 | 38-4 |3-0 |/0-3 | 0-1 | 20 || —:30:—|| 3-0 || Cirro-cumulo-strati; cumulo-strati on E. horizon. © 22 960 || 44-3 | 40-2 | 4-1 |/0-2 |0-1 | 21 || —:30:—]} 0-7 Id. ; id. ; cirro-strati. © 23 968 || 46-2 | 40-0 |6-2 |}0-8 |0-3 | 30 |}30:—:—]] 3-0 || Loose cumuli; id. a) 423 0 986 || 48-5 | 42-8 | 5-7 || 0-6 |0-6 | 28 | 30:—:—|| 6-0 Id. ; id. (0) | ae! 29.997 || 50-3 | 43-2 | 7-1 || 0-9 |0-6 | 28 || 30:—:—|| 5-0 Id. ; cirro-strati. (>) } =. 2 80-003 || 51-0 | 43-2 | 7-8 || 0-6 | 0-4 | 24 |} 29:—:—]) 6.5 Td. ; id. (3) { 3 || 29-996 || 51-2 | 43-2 | 8-0 0-5 | 0-5 0 |}29:—:—}} 5-0 Id. ; id. (>) 4 || 29-998 || 51-6 | 43-3 | 8-3 || 0-3 | 0.2 0 ||}29:—:—]] 3-5 Td. ; id.; cirri to NE. (0) 4 5 || 30-026 || 50-3 | 43-0 | 7-3 || 0-3 |0-1 | 30 || 29:—:— |] 3-0 || As before. © [atmospheric haze near hor. © | 6 047 || 47-1 | 42-1 |5-0 ||0-1 | 0-0 | 24 |}29:—: 1 1-5 || Patches of cum. ; tufts of cirrilike tadpoles ; cir. and 4 056 || 41-6 |38-9 | 2-7 ||0-1 | 0-0 | 22 0-8 || Cirro-cumulo-stratus and cirrous haze on horizon. } 8 078 ||41-0 | 38-3 | 2-7 ||0-1 | 0-1 | 22 2-5 Id. } 9 077 || 39-3 | 36-9 | 2-4 | 0-1 |0-1 | 18 0-2 || Patches of cloud on E. horizon ? 072 || 35-3 | 34-3 | 1-0 ||0-0 |0-0 | 18 0-0 || Clear. 074 || 34-1 | 33-2 | 0-9 || 0-0 | 0-0 0-0 Id. 069 || 32-2 | 31-6 | 0-6 || 0-0 | 0-0 0-0 Id. y 30-060 || 31-9 | 31-3 |6-6 ||0-0 |0-0 | 18 0-0 || Clear. ») 052 || 30-4 | 30-0 | 0-4 ||/0-0 | 0-0 | 28 0-0 Id. y 049 || 30-4 | 30-0 |0-4 |/0-0 | 0-0 | 18 0-0 Id. »)) 033 || 30-7 | 30-4 |0-3 ||0-0 | 0-0 0-1 || One or two streaks of cirrus to NW. »)) 021 || 29-6 131-8 | --- ||0-0 |0-0 | 16 0-0 |) Light fog. ») 021 || 29-9 |30-3 | --- || 0-0 |0-0 0 0-5 || Fog to E.; cirro-strati and cirrous haze on E. hor. _ ) 020 ||31-6 |31-1 |0-5 ||0-0 | 0-0 3-0 || Streaks of thin cirri, radiating from SSW. ; fog over the Tweed. © 016 || 36-9 | 36-6 |0-3 ||0-0 |0-0 | 20 || —:—: 0|| 6-0 || Thin cirri over much of the sky ; solar halo. [O) 010 || 44-4 | 43-2 | 1-2 |/0-1 |0-2 | 19 5-0 || Woolly cirri and cirrous haze; patch of seudtoS. © 80-004 || 48-6 | 45-3 | 3-3 || 0-6 |0-3 | 21 ||}23:—:—|| 4-5 |! Seud; cirri, &c.; as before; halo. © {solar halo. 29-984 || 51-8 | 48-3 | 3-5 || 0-4 | 0-4 | 19 || 21:—: 0 8-0 || Scud on hor.; woolly & linear cir. & cir. haze thickening; 955 || 54-5 | 48-8 | 5-7 || 1-0 | 0-6 | 21 || 21:—:—|| 9-0 || Scud and loose cum.; woolly cir. & cir. haze; solar halo.Q 933 ||52-8 |48-4 | 4-4 || 1-1 |0-2 | 21 || 21:—:—]| 9-8 Id. ; cirro-strati ; cirri. 899 || 53-6 |48-7 |4-9 ||0-8 | 0-2 | 22 || 20:—:— 9-0 Id. ; woolly, linear, and mottled cirri.© 876 || 53-7 |48-0 | 5-7 || 1-1 |0-4 | 21 || 20:—-:—|]| 9-9 |] As before. e 865 || 52-5 | 47-6 |4-9 || 0-9 | 0-5 | 20 || 20:—:—]] 10-0 || Scud; dense mass of cirro-stratus. 844 || 50-3 | 46-5 | 3-8 ||0-4 | 0-3 | 18 10-0 || Patches of seud; dense mass of mottled cirro-stratus. $21 || 48-6 | 45-0 | 3-6 ||0-4 | 0-5 | 20 || 20:—:—1|| 10-0 || Thick muddy cirro-stratus, descending. 799 || 46-7 | 43-6 |3-1 ||0-3 |0-1 | 16 10-0 || Dense mass of cirro-stratus. 780 || 46-1 | 43-0 | 3-1 ||0-3 |0-3 | 16 10-0 Id. 758 || 45-2 | 41-9 | 3-3 || 0-4 |0-1 | 18 10-0 Id. 727 || 44-7 | 41-4 | 3-3 || 0-3 |0-3 | 19 10-0 Id. 691 || 44-7 |41-7 | 3-0 || 0-4 |0-2 | 18 10-0 Id. 663 ||45-7 | 42.3 | 3-4 || 0-4 |0-4 | 18 10-0 Id. 29.637 || 45-0 | 42-2 | 2-8 || 0-4 |0-2 | 18 10-0 || Dense mass of cirro-stratus. 611 || 45-8 | 43-1 | 2-7 | 0-9 |0-3 | 16 10-0 Id. 537 |/46-1 | 43-3 | 2-8 || 1-0 |0-6 | 16 10-0 Id. 518 || 45-4 |42-9 | 2-5 ||0-7 | 0-2 | 20 10-0 Id. 444 || 46-2 | 43-5 | 2-7 || 0-6 | 0-7 | 19 10-0 Id. 446 |/46-4 | 43-5 | 2-9 || 1-2 |0-9 | 18 || 22: —:—|| 10-0 || Seud; cirro-stratus. 430 ||47-0 |43-5 | 3-5 || 1-1 |0-8 | 18 ||} 19:—:—]] 10-0 || Id.; id. 397 || 47-0 | 44-0 | 3-0 || 0-6 |0-2 | 18 || 19:—:—]]} 9-8 || Id.; id. 375 || 49-7 | 46-0 | 3-7 || 1-5 |0-9 | 19 || 19: —:—J| 10-0 || Loose seud; cirro-stratus and cirro-cumulo-strati. 361 || 51-4 | 47-8 | 3-6 | 1.2 |1-4 | 17 ||19:—:—|| 9-9 Ia. ; id. 350 || 50-5 | 47-9 | 2-6 || 1-5 |1-0 | 18 || 19:—:— 9-9 || Scud; cirro-stratus; a slight shower at 22) 20”. 327 ||52-3 |49.3 |3-0 || 2-6 }1-1 | 18 9-5 qd hs id. ; drops of rain. I ‘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 | Motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 209 237 271 282 || Hovurty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 25—27, 1845. THERMOMETERS. | Dry. 56-0 58-6 57-9 57-7 56-9 52-7 49-8 48-0 47-2 44-7 48-2 48-4 | | Diff. || BWM OSSH OOF PENH USITAS WAANNNUFONH OGDWNWNwANWKhOUDR WSO’ Bw Ee ee SUSY RO) C2189 Fett) UO ES ed et SS WIAWAwWBSOSHONAKEIWE Pec ai Species of Cloyds and Meteorological Remarks. 0-10. 7-0 || Scud and loose cumuli; cirro-strati. fo} fl 5-0 Id. ; id. (>) 5-5 Td. fo) 4.0 Ta. ro) 2-0 Id. (0) 7-0 || Cirro-cumulo-strati ; loose cumuli. fo) 7-0 || Scud; cirro-strati. ‘ 2.0 || Scud and cirro-strati. 15 Id. 3-0 Id. 8-8 Id. 9-0 || Scud; rain! 0-5 || Patches of cloud near horizon. 0-5 || Cirro-cumulo-stratus to E. 0-5 Id. y 0-8 Id. ; faint aurora to N. DI 0-8 Id. dD 0:8 Id. yp] 2-0 Id. ; cirro-strati. e 8-5 || Cir-cum.-str. ; cir.-str.; woolly cir.; patches of scud.@ 9-7 || Patches of scud ; cirro-stratus and cirrous haze. 9-5 || Scud; id. @ 9-0 || Scud and loose cumuli; cirro-strati; cirri. fo) 6-0 || Cirro-cumulo-strati; cumuli; cirro-strati; cirri. @ 9-0 || Seud and loose cumuli; cirro-strati; cirri. 9-8 || Cirro-cumulo-strati ; cumulo-strati; cirro-strati. 4-0 || Loose cumuli; cumulo-strati on horizon. 4:5 Id. ; id. 2-0 Id. ; id. fo) 0-5 || Loose cirro-strati and cirri; hazy near horizon. 0-8 || Patches of cirro-strati and linear cirri; hazy near hor, 0-8 Id. 0-2 || Patches of cirro-strati. 0-2 || Cirrous haze on W. horizon. 0-5 || Thin cirrous haze over the sky. 9-0 || Cirrous haze and cirro-strati. 9-9 || Cirrous haze and cirro-strati. 10-0 Id. 9-9 Td. 10-0 || Dense cirro-stratus. 10:0 Id. 10-0 Id. 10-0 || Loose ragged seud; mass of cirro-strati. 10-0 Tass id. 10-0 Tdi; id. 10-0 1G ING id. ; rain! 10-0 Id. ; id. 10-0 Id. ; id. 9-8 || Thin seud; cirro-strati and cirri. 9-5 || Seud ; id. ; passing showers. 2-0 || Loose cumuli; eumuli; cirro-strati ; cirri. 2-0 Id. ; id. ; id. ; id. ; haze. 1-0 || Seud and loose eumuli. 7-0 Id. 8-0 || Seud; shower? 3-5 Id.; and 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. The | 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, SEPTEMBER 27—30, 1845. 2B THERMOMETERS. WIND. Sky ween clouded. Species of Clouds and Meteorological Remarks. force in Faint auroral arch, altitude 7°. Seud; auroral light to N. seen through the clouds. Id. Id. Cirrous scud ? Id. Id. ; 15 30™, shower”> Id. Td. ) Smoky and cirro-stratous scud ; cirro-cumuli. y Id. ; id. [bow.© Id. ; id. ; cir.-str.; rain- Seud; cirro-cumulo-strati ; cir.-str.; passing showers. Td. ; id. ; id. Id. ; id. ; id. Loose cumuli; cumulo-strati; cirro-strati. Scud and loose cum. ; cum.-str. ; cir.-str.; cirri. Id. ; id. ; id.; nimbitoS. Id. ; id. ; id. Loose scud ; cirro-cumulo-strati ; cumulo-strati. Cirro-stratous scud ; dense mass of cirro-stratus. Cirro-cumuli; ribbed cirri; cirro-strati; cumulo-strati. Cirrous and cirro-stratous scud, and nimbi on hor.; cirro- Scud and cirro-strati. [strati. Idi. very dark to W. Id. Scud ; slight showers. Id.; clouds cleared off rapidly ; occasional showers. Seud. Id.; shower!—* Id. Id. Id.; drops of rain. Id. (horizon. © Loose cir.-cum. and cir.-str.; scud on Cheviot and N. Loose cumuli and nimbi; woolly cirri. © Seud to N.; cumuli; woolly cirri to S. (o) Scud and loose cum. ; cir.-cum.-str. ; cir.-str.; wo. cir.© Thin scud; cir.-cum.-str. ; cirro-strati; cirri; cumuli; nimbi to s.9Q Seud ; woolly and ribbed cirri; passing showers. S Id.; loose nimbi, heavy showers around ; id. Loose cumuli; cumulo-strati to E. (0) TGs id. ; nimbi to W. (0) Scud ; cumulo-strati to E.; rain falling to W. Scud hanging in bags, with cirrous pendants ; shower? Seud ; nimbi and cumulo-strati on E. horizon. Scud and nimbi. Seud. Id.; shower!—* Id. Scud and cirro-strati on horizon. Id. Seud and cirro-strati on horizon. Td. ; rain”? Qe eee eS ote oO De wo boaAweHewpoeae wa WOSS S Ke Th) 1 = ih St a aur ooNw AD SCODTIBUNBRWHHO 2-4 1-5 1-5 1-9 1-6 1-6 0-8 1-1 1-8 1-2 1-1 1-3 1-1 0-7 1-6 Roe abe, ore Sept. 272105, A few minutes after 104, bright streamers seen rising from NNW. and N. horizon. Sept. 292 6». Sheets of cirro-strati lying E. and W.; scud on Cheviot: small cumulo-strati to E. Sept. 3021». Observation made at 14 7™, Sept. 30755. Beautiful and complete double rainbow, with supplementary bows. 238 Hourty METEOROLOGICAL OBSERVATIONS, SEPTEMBER 30—OCTOBER 2, 1845. THERMOMETERS. WIND. as Clouds, ae aie Maximum Sc.:C.-s.:Ci.,|!| Sky Species of Clouds and Meteorological Remarks | Time. at 32°. Dry. | Wet. | Diff. force in |Prom Faas’ clouded. I eg B 14,| 10™ . h. in. | be e = lbs. | Ibs. | pt. pt. pt. pt. 0—10. 30 15 || 29-336 || 46-0 | 43-7 | 2-3 ||0-9 | 0-4 | 19 3-0 || Seud and cirro-strati on horizon. 16 353 || 45-2 |42-8 | 2-4 ||0-5 | 1-1 | 20 45 Id. : 17 367 || 44-6 | 43-2 | 1-4 || 1-6 | 0-2 | 20 9-5 Id. 18 375 || 46-6 |44-0 |} 2-6 || 0-8 |0-5 | 20 | 24:—:—] 7-5 |) Smoky seud ; cirro-strati. 19 391 || 46-5 44-0 | 2-5 || 1-3 | 1-1 | 21 2-0 || Scud; loose cumuli, and cirro-strati on horizon. ©} 20 418 | 46-7 |45-0 | 1-7 ||0-8 | 0-1 | 20 2:0 || Id.; as id. ©) a 21 442 | 49.9 | 47-4 | 2-5 ||0-8 |0-9 | 19 || 23:24:—]| 8-5 || Id.; watery cirro-cumuli. OQ} 22 456 || 52-0 | 48-7 | 3-3 |/1-0 | 1-0 | 20 |) 23:—:—| 7-0 || Id.; cirro-strati; thin cirro-cumuli. 0) 23 470 | 52-0 |48-0 | 4-0 |} 1-7 | 1-5 | 22 | 23:—:—] 3-5 Id.; loose cumuli; patches of cirri. 0) 0 456 || 54-0 | 49-6 | 4-4 3-3 1-9 | 20 || 23:—:24 35 Gee id. ; woolly cirri. g 1|| 444 ||54-4 |48-3 |6-1 || 2-6 | 2-2 | 20 |}92:—-:24] 7-0 || Id; id. ; id. ; cirrous haze. 0) 2 445 ||54-3 |48-6 | 5-7 ||3-5 | 2-0 | 20 ||\92:—:—|| 9.0 || Ia; id. ; id. ; id. ‘= 3 429 | 54-7 | 49-4 |5-3 |13-2 |3-0 | 21 ||22:—:—|| 9-5 || Id.; id. ; id. ; id. = 4 430 || 54-0 |49-2 | 4-8 || 2-4 |2-3 | 21 ||92:_-:—-]] 9-9 || Id.; id. ; id. ; id. 5 431 ||52-8 |49-1 | 3-7 ||3-0 | 0-9 | 21 || 21:—~:—]| 10-0 || Thick scud and loose cumuli; cirrous haze. = 6 432 52-3 | 48-6 | 3-7 || 1-7 |0-9 | 20 || 21:—:—] 10-0 || Thick scud; cirro-strati. i 419 ||52-0 |48-6 |3.4 || 1-2 |0-6 | 21 ||21:—:—]| 10-0 Id. 8 413 51-5 | 48-4 |3-1 || 1-6 | 1-2 | 21 5-0 Td. ; id. ; stars dim. 9| 411 |51-0 | 48-0 | 3-0 || 1-6 | 1-1 | 20 3-0 || Seud; id. ; haze; — stars dim. 10| 397 || 50-8 |47-8 | 3-0 || 1-8 | 1-4 | 20 2-0 || Id.; id. ; id, ; id. 11} 389 || 51-0 |48-3 | 2-7 || 2-3 |1-8 | 20 1-5 || Id.; cirrous haze ? id. 12| 388 || 50-0 | 47-8 | 2-2 ||1-8 |0-9 | 21 1-0 || Id.; id. ; id. 13 || 29-400 || 49-8 {47-7 | 2-1 |) 1-8 | 1-2 | 21 4:0 || Dark mass of cirrous scud (2) to W. 14 405 || 50-8 {48-4 | 2-4 || 1-2 | 0-6 | 21 10-0 Td. 15 408 ||50-0 |47-0 | 3-0 |} 1-3 | 0-7 | 22 9-9 || Scud? breaking to W.; shower lately. 16 413 48-0 | 45-2 | 2-8 ||0-5 | 0-2 | 21 6-0 || Id.? sky to N., rather milky. 17 | 413 ||46-8 | 44-7 | 2-1 || 0-2 |0-1 | 20 9-0 || Id.? sky in zenith. 18 405 ||46-0 | 44-3 | 1-7 || 0-1 | 0-0 | 16 || —:22:—)}| 9-0 || Cirro-cumulo-strati ; cirrous haze ? 19} 414 ||46-8 | 44-8 | 2-0 || 0-1 | 0-1 | 22 || —:22:—|| 10-0 || Cirro-strati radiating from ENE. and WSW. 20 424 || 47-4 |45-3 | 2-1 || 0-1 |0-0 | 23 10-0 Id. 21 434 ||49-0 | 46-9 | 2-1 || 0-1 | 0-1 | 24 9-9 || Cirro-strati ; cirro-cumulo-strati. 22 446 ||52-2 | 49-4 | 2-8 10-1 | 0-1 | 20 10-0 Id. ; id. ; patches of seud. g 23 453 || 54-2 | 50-2 | 4-0 || 0-1 | 0-0 | 22 || 25:—:—|| 10-0 || Loose scud ; dense mass of cirro-strati. @ ([cir.-str.€ 0 461 || 53-2 | 48-0 | 5-2 ||0-1 |0-0 | 24 || —:—:21 9-5 || Woolly cir. rad. from WSW. ; loose seud to N. ; cum. f 1 458 || 53-4 |48-7 | 4-7 ||0-1 |0-1 | 24 || —:—:22]| 8.5 || As before; flocks of swallows flying about. ¢ 2 454 || 55-8 | 50-2 | 5-6 || 0-2 |0-1 | 22 | 26:—:—]| 9-9 || Seud and loose cumuli; dense mass of cirro-stratus. 3 440 || 55-4 | 50-0 | 5-4 || 0-2 | 0-0 | 20 || —: 21:— 9-9 || Cirro-cumulo-strati and cirro-strati ; cumuli. 4 446 || 54-3 |49-7 |4-6 | 0-1 |6-0 | 18 || 26:—:—|| 10-0 || Scud; sky covered with cirrous haze. 5 450 || 52-8 | 49-4 | 3-4 || 0-1 | 0-1 | 17 10-0 | As before. fand moving, slighty iu vaptons Gueeene 6 457 | 50-4 | 48-1 | 2-3 ||0-0 | 0-0 | 16 10-0 Blotched mass of cirro-stratus with patches of scud forming belo! 7 456 | 48-8 | 46-7 | 2-1 ||0-0 | 0-0 10-0 || As before; flock of lapwings moving north at 6%. 8 | 450 | 49-0 |46-4 12-6 ||0-1]0-0 | 4 10-0 Id.? very dark. 9 | 457 || 48-1 | 46-2 | 1-9 || 0-1 | 0-0 3 10-0 Id.; rain in a few minutes. 10 493 ||47-0 |46-4 | 0-6 || 0-1 | 0-0 10-0 Id.; rain! 11|| 460 46-3 |45-8 | 0-5 0-0 |0.0 | 8 10-0 || Rain! 12 446 |45-4 | 44-8 |0-6 || 0-1 | 0-1 6 10-0 Id. 13 || 29-426 | 45.0 | 44-2 | 0-8 || 0-1 | 0-0 6 10-0 || Rain! 14 437 || 45-3 |44-3 | 1-0 || 0-3 | 0-1 4 10-0 || Rain? 15 431 || 44-7 |43-9 | 0-8 || 0-5 | 0-4 3 10-0 Id. 16 430 || 44-8 |44-1 | 0-7 || 1-7 |0-4] 3 10-0 || Rain!” 17 394 || 44-0 | 43-5 |0-5 || 1-1 |0-9 | 6 | 10-0 || Id 18 370 || 44-9 |44-5 |0-4 |} 1-6 11-2] 4 10-0 Id. 19 396 || 45-5 | 44-9 |0-6 || 1-4 | 0.6 5 6:—:—]| 10-0 || Send; rain'-? 20, 400 | 45-7 |45-0 | 0-7 | 1-1 | 0-8 5 || 6:—:—]| 10-0 Id.; continuous rain!” 21) 414 ||46-0 } 45-3 |0-7 || 1-4 |0-6 | 3 || 6:—:—|]| 10-0 Id.; rain? 22 386 |46-3 | 45-7 | 0-6 || 1-6 | 1-1 4 | 5:—:— |]! 10-0 Id.; rain? The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, K.=8, 8.= 16, W.= 24. he | motions of the three strata of clouds, Se. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. ] Hourty METEOROLOGICAL OBSERVATIONS, OcTOBER 2—6, 1845. 239 THERMOMETERS. WIND. 8 Clouds, ute ||| BAzo- 5 Se.:O.-8.:Ci,|| Sk Mean || METER Maximum ee aloa ae a Species of Clouds and Meteorological Remarks. | Dime. |) at 32°. | Dry. | Wet. | Diff. force in [From rag : | 1s, | 10™ r h. in. bs Ss eC lbs. | Ibs. | pt. pt. pt. pt. 0—10. | 2 23 | 29-366 | 46-5 | 45-8 |0-7 || 1-7 |}2-7 | 4 || 5:—:—|| 10-0 || Scud; drifting rain! | 3°40 372 | 46-9 | 46-3 |0-6 |) 2-2 | 1-4 3 5:—:—) 10-0 Id.; rain? i) at 334 | 46-8 | 46-4 |0-4 1-6 |2-8| 6 || 5:—:—|| 10-0 Ide side }} 2) 312 | 46-9 | 46-3 |0-6 | 24 /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 Id.; rain! | 4 287 | 47-2 | 46-7 |0-5 || 1-5 | 0-7 5 5:—:—|| 10-0 Id.; rain? 5 209 | 48-0 | 47-3 | 0-7 || 2-7 | 2-3 5 || 6:—:—] 10-0 Id.; rain (Scotch mist)”? 6 218 | 47-8 |47-3 |0-5 ||3-1 |0-8 | 4 || 6:—:—|| 10-0 |} Id.; rain? 7 || 208 || 47-7 | 47-4 |0-3 || 0-9 | 0-6 3 10-0 Id.; rain!— } 201 | 48-0 |47-7 |0-3 |/0-9 |0-7 | 2 10-0 |\Rain®? | 9 200 || 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. 234 147-8 | 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 seud; cirro-cumulo-strati. 292 | 45-3 | 44.2 | 1-1 || 0-6 |0-1 3 2:—:—|| 10-0 || Loose seud. 304 | 45-9 | 44.6 | 1-3 || 0-2 |0-1 3 33——|| 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 Id. ; id. ; id. 315 || 47-2 | 44-7 |2-5 || 1-2 |0-8 1 3:—:—]] 10-0 Ids; id, 315 | 45-7 | 44-0 | 1-7 || 1-0 | 0-5 2 3:—:—]| 10-0 Id. ; id. ; rain! 316 || 45-0 | 43-5 | 1-5 || 0-7 | 0-3 2 10-0 Id. ; idl. id, 328 | 43-9 | 42-9 | 1-0 || 0-5 | 0-3 2 10-0 Id. ; 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 0 10-0 Td? id. ; id. 359 | 42-3 | 41-0 | 1-3 | 0-8 | 0-2 2 10-0 de id. 374 | 42-0 | 41-2 | 0-8 ||0-1 |0-1 | 28 10-0 Id. ; 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 38-5 Id. 29-663 | 44-0 |39-9 |4-1 0-4 [0-2 | 20} = = — ff ewe. 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 Id. 698 || 29-3 | 29-6 | --- |/0-0 |0-0 | 16 0-3 Id. 690 || 28-3 | 28-5 | --- ||0-0 |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. fo) 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. (0) 676 || 43-7 | 42-0 | 1-7 ||0-1 | 0-1 6 1-0 Id. and haze round horizon. (0) 665 || 49-3 | 45-4 | 3-9 |/0-3 |0-3 | 15 || 16:—:20]| 2-0 || Patches of cumuli; woolly cirri. {0} 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. (0) 606 || 52-4 | 46-6 | 5-8 || 0-5 | 0-3 —:—:18] 5-5 || Woolly cirri; loose ecumuli. fo} 996 || 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. (3) e 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 _ Motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. . Oct. 44 6%, Swallows seen to-day in considerable numbers, for the last time. Oct. 624%. Portion of a halo lately; parhelion at 4» 30™. THERMOMETERS. WIND. | Clouds, Sf ; Se. : C.-8. :Ci Sk an || METER Maximum oe Seaaa erica Species of Clouds and Meteorological Remarks. Time. || at 32°. || Dry. | Wet. | Diff. force in | Ryom| eee | - 1h, 10m, hb in. | “ S ~ lbs. | lbs. | pt. || pt. pt pt. 0—10. 5 || 29-587 | 48-5 144-4 |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 | Scud; 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 8 579 || 44-4 | 42-1 | 2-3 ||0-1 |0-0 | 11 10-0 |} Td. 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 |, Ide; rain! 13 || 29-506 || 44-0 | 43-4 |0-6 ||0-1 |}0-0 | 2 | 10-0 | Dense cirro-stratus and scud; rain”? 14 472 | 44-1 | 43-5 | 0-6 || 0-1 | 0-1 2 | 10-0 Tie rain’? 15 445 || 44-0 | 43-4 |0-6 ||/0-2 | 0-1 2 | 10-0 Id. ; rain?” 16], 406 | 44-3 | 43.4 | 0-9 0-2 |0-2| 4 10-0 |! Vs byes rain! 17|| 383 ||44-1 | 43-7 |0-4 ||0-2 |0-2] 2 10-0 | Send; slight drizzle. 18 355 || 45-0 | 44-3 |0-7 || 0-2 |0-3 2 10-0 || Id.; id. 19 324 || 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) 4:+—:—] 10-0 Tak; dense mass of cirro-stratus. 23 238 || 49-1 | 47-1 |2-0 || 0-5 | 0-1 1 |) 3:—:—]| 10-0 Id. ; id. O|| 213 | 49-0 | 47-5 | 1-5 ||0-8 |0-5 | 0 | 1:—:—] 10-0 Id. ; id. 1 183 || 51-0 | 48-7 | 2-3 | 0-8 |0-7 | 31 | 0:14:—] 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 |0-3 | 28 || 27:—:—]| 10-0 Id. 5 125 || 47-4 | 45-2 |2-2 ||0-4 |0-2 | 26 |27:—:—]| 10-0 Td. 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 Id. ; id. 8 099 || 46-7 | 43-8 | 2-9 ||0-3 | 0-2 | 20 | 10-0 Tdi. id. 9|| 097 || 46-2 | 43-7 | 2-5 || 0-2 |0-2 | 19 | 10-0 Id. ; id. 10 100 || 45-4 | 42.7 | 2-7 || 0-3 |0-2 | 18 | 7-02)| Id.; id. ; stars dim. 1l 103 || 44-4 | 42-4 | 2-0 || 0-4 | 0-1 | 20 | 9-8 || Thin cirro-strati, the stars seen dimly in some places, 12 107 || 44-7 | 42-9 | 1-8 ||0-3 |0-7 | 19 | 10-0 || Cirro-strati 2 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 Id. 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 11S cirrous haze; stars dim. 17 135 || 41-9 | 40-6 | 1-3 || 0-3 |0-1 | 20 | 9-0 Id. ; id. ; id. 18 146 || 41-2 | 40-0 | 1-2 || 0-2 |0-0 | 24 | 9-0 |, Id. ; id. ; id. 19 157 || 39-7 | 39-0 |0-7 || 0-1 |0-1 | 24 4-0 | Td. ; 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:—| 10-0 | Thick cirro-stratus ; small cumulo-strati and haze to N, 22 164 || 45-8 |44-3 |1-5 ||0-0 |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. 0} 149 || 50-0 | 47-3 |2-7 ||0-1 |0-0 | 8 |—:18:—] 8-0 | Id. c 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.; cum. | 2 113 53-8 48-6 5 2 0-5 0:3 13 14:—:— 4-0 Loose cum.; woolly and mottled cir.; cir.-str.; cum, ; cum,-str,; dense haze on hor, | 3 103 || 52-2 | 47-8 |4.4 |/0-3 |0-2 | 12 |}18:—:—|] 4-5 || Send and loose cum.; cum.-str. and haze round hor. € 4 084 || 53-3 | 48-3 |5-0 || 0-7 |0-2 | 12 2-5 || Woolly and linear cirri ; id. 5 O77 | 51-3 | 47-2 | 4-1 ||0-7 |0-2 | 12 | —:—:17 3-0 || Woolly and linear cir. ; cum.-str. and haze round hor, ; pat. of seud. 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 horizon a 061 || 45-3 | 43-9 | 1-4 0-1 |0-:0] 8 2-5 | Cirro-strati; cirri. ») [atmospheric haze. 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 Id.3 id. 11 || 28-984 || 49-6 | 46-8 | 2-8 ||1-1 |0-5 | 11 |12:—:—J| 9-9 | Send; cirro-stratus and haze. 12 || 28-966 || 50-6 | 48-0 | 2-6 || 1-4 11-1 | 11 10-0 Id. ; id. Hovurty METEOROLOGICAL OBSERVATIONS, OCTOBER 6—8, 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 motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. ‘ | | | Hourty METEOROLOGICAL OBSERVATIONS, OcTOBER 8—10, 1845. 24] | THERMOMETERS. WIND. Clouds. | Go ep | = pee my || San melt “08 i Mocs METER Maximum phe ek os Fae Species of Clouds and Meteorological Remarks. ‘Time. |} at 32°. || Dry. | Wet. | Diff. eee From fr ee ; mh. in, ° ° o || ibs. | tbs. | pt. |] pt. pt. pt. || 0-20. 8 13 || 28-962 || 49-7 | 48-0 | 1-7 | 0-8 |0-3 | 12 || 10-0 || Dark; a slight shower lately. 14 952 || 49-4 |47-6 |1-8 | 0-4 |0-2 | 12 10-0 Id. | 15 950 ||48-2 | 46-6 |1-6 ||0-7 |0-2 | 14 10-0 Id.; rain®3—10 +16 946 || 48-1 | 46-3 | 1-8 | 0-7 |0-7 | 14 10-0 Id. 17 974 || 46-9 | 45-7 | 1-2 || 1-3 |0-1 | 19 9-8 || Seud and cirro-stratus. 18] 28-994 || 43-3 | 42-6 | 0-7 || 0-1 | 0-0 | 12 9-0 |] Scud, cirro-strati, and cirrous haze. 19}| 29-008 || 43-0 | 42-0 | 1-0 0-1 | 0-0 | 26 || 20:12:—J|| 10-0 |} Seud on §, horizon ; cirro-strati; cirrous haze. | 20 019 || 43-6 | 42-3 |1-3 || 0-1 |0-0 | 20 | 20:12:— 9-5 Id. ; cir.-cum.-str. ; cirro-stratus rad.from SE. ; 21 038 || 43-2 | 42.6 |0-6 | 0-1 | 0-0 9-5 || As before. (cir. haze; sky to SSW. |} 22] 053 |/46-4 | 44.0 |2-4 0-1 |0-0) 1 9-2 Td. Tae: actak Ralos | 23 059 ||49-6 | 47-0 |2-6 0-1 |0-1 | 15 || 20:12:12 8-5 Scud and loose cum. on S, hor.; thin cir.-str., woolly cirri, and cir. 9 0 058 || 51-3 | 47-9 | 3-4 || 0-0 |0-0 20:11:11 6-0 || As before; sky to S. (0) 1 061 |/52-0 | 48-2 |3-8 |}0-1 |0-1 | 20 || 20:—-:—}| 4-0 || Loose cumuli; cumuli; cirro-strati; cirri. (0) I 2) 069 || 54-8 |48-3 |6-5 || 0-1 |0-1 | 19 || 20:—:—|]| 4.5 Id. ; id. ; id. {0} t 3 071 || 53-8 | 47-8 |6-0 ||0-1 |0-1 | 21 || 20:—:— 3-5 Id.; id. ; id. (0) 4 075 || 52-8 | 47-8 | 5-0 || 0-2 |0-1 | 18 || 20:—:— 4-0 Id. ; id. (0) 5 086 || 49-6 | 45-7 |3-9 || 0-1 |0-0 | 18 |} —:17:14 1-8 || Cirro-cumulo-strati; woolly cirri. (0) 6 091 || 44-0 | 42-3 |1-7 ||0-0 | 0-0 | 20 5-0 || Woolly cirri and cirrous haze. 7 105 || 40-0 | 39-0 |1-0 || 0-0 |0-0 | 22 7-0 || Cirro-strati; woolly cirri; cirrous haze. > 8 123 || 39-9 |39-1 |0-8 ||0-0 |0-0 | 18 9-5 || Cirro-cumuli. } 9 133 || 39-7 | 39-1 |0-6 || 0-0 |0-0 | 28 9-8 |) Cirro-cumulo-strati. 10 130 || 37-5 | 37-0 |0-5 ||0-0 |0-0 | 20 2-0 || Patches of cirro-cumulo-strati ; woolly cirri. »)) 11 143 || 40-0 | 39-7 |0-3 ||0-1 |}0-1 | 18 9-9 || Scud and cirrous mass. 139 || 39-9 | 39-6 | 0-3 || 0-0 | 0-0 10-0 Id. 29-154 || 41-3 | 40-7 |0-6 || 0-0 | 0.0 | 10-0 || Scud and cirrous mass; rain! 152 || 42-0 | 41-7 | 0-3 || 0-0 | 0-0 10-0 |) Seud; rain! 139 || 42-8 | 42.4 |0-4 || 0-0 | 0-0 10-0 || Id.; id. 135 || 42-9 |42-7 |0-2 ||0-0 |0-0 | 4 10-0 || Id.; rain” 114 || 42-5 | 42.1 |0-4 ||0-0 |0-0 | 26 10-0 || Id.; rain! 105 || 42-0 | 41-6 |0-4 || 0-0 |0-0 6 10-0 Tia kee Bt 092 || 42-2 | 41-6 |0-6 || 0-0 |0-0 | 26 10-0 || Dense mass of cirro-stratus ; rain’? 087 || 42-2 |41-7 |0-5 || 0-0 |0-0 | 20 10-0 || Continuous rain!” 090 || 42-3 | 41-9 |0-4 ||0-1 |0-1 | 20 9.5 || Scud; cirro-stratous mass; sky to SSW; rain? 091 || 44-3 |43-8 |0-5 || 0-1 |0-0 | 22 || 22:—_-:— 9.5 || Loose seud ; cirro-strati; cirro-cumulo-strati. i 088 || 48-0 146.4 |1-6 ||0-0 |0-0 | 2 ||/20:—:—]| 7-0 || Patches of seud; woolly cir.-str., moving very slowly.© D 0 084 || 48-7 | 46-7 | 2-0 ||0-1 |0-0 | 20 | ig:—:— 3-0 || Scud and loose cumuli; woolly cirri. (0) 1 084 || 53-0 | 49-9 | 3-1 || 0-0 [0-0 | 16 || 17:—:— 9-0 Td. 2\| 090 || 52-0 | 47-8 | 4-2 || 0-4 |0-5 | 16 }17:—:—|]| 9-9 Id. 3|| 101 | 51-7 | 47-0 |4-7 | 0-6 |0-1 | 15 | 16:—:—] 9-9 Id. 5 cirro-strati. 4 121 || 48-0 | 46-0 | 2-0 ||0-5 |0-1 | 16 || —:14:—|| 10-0 || Thick scud and cirro-stratus ; slight rain lately. 5]| 120 | 48-0 |46-3 | 1-7 | 0-2 |0-1 | 13 | —:14:—]] 9-9 Id. ; id. 6 128 || 47-8 |46-0 |1-8 || 0-2 |0-2 | 14 || —:14:—]} 9-9 Id. & 137 || 47-0 | 45-2 | 1-8 || 0-4 |0-2 | 15 9-0 Id. 8 147 || 46-3 | 44-7 |1-6 0-2 |0-2 | 15 6-5 || Scud and cirro-strati. y :) 152 ||43-5 | 42-4 | 1-1 10-2 |0-1 | 14 3-0 || Cirro-cumulo-strati and cirro-strati; cirri. y 167 || 42-8 | 41-8 |1-0 || 0-1 |0-1 | 16 8-5 Id. ; id. > 174 || 41-6 |40-6 |1-0 |/0-1 |0-1 | 15 . 9.5 || Sheets of woolly cirri and cirro-strati. > 169 ||41-9 |40-8 | 1-1 ||0-1 |0-0| 4 10-0 || Mass of cirro-stratus. ||| 29-159 | 41-4 | 40-4 | 1-0 0-1 )0-:0 | 2 10-0 || Mass of cirro-stratus ; a few stars dimly visible. 154 || 43-3 | 42-0 | 1-3 ||0-3 | 0-1 8 10-0 Id. 148 || 44-7 | 43-3 | 1-4 |/0-1 | 0-1 | 12 10-0 Id 141 || 46-0 | 44-0 | 2-0 || 0-1 |0-1 | 10 10-0 Id 149 || 46-8 |55-0 |1-8 ||0-3 |0-3 | 15 || 10-0 _Id.; rain! commenced. 152 || 45-6 | 44-6 | 1-0 ||0-7 |0-3 | 12 10-0 Id. ; continuous rain!—? 159 || 44-9 | 43-9 |1-0 ||0-4 |0-3 | 12 10-0 Id. 180 || 45-3 |43-7 | 1-6 ||0-3 }0-1 | 18 || —:20:—l|] 9-8 || Cirro-stratous scud ; mass of cirro-stratus. Pa 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 ; motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Oct.104 3%, Observation made at 3 13™, MAG. AND MET. oBs. 1845. 3P 242 Hovurty METEOROLOGICAL OBSERVATIONS, OcToBER 10—14, 1845. THERMOMETERS. WIND. x — | Clouds, Gott. | Baxo- F Se.: C.-8.: Ci., || Sk Mean || METER Maximum eae: ae al d Species of Clouds and Meteorological Remarks. Time. || at 32°. || Dry. | Wet. | Diff. | force in [Prom is aa H a 7 | 14, ;10™. da. bh. in. Mt eI Ibs lbs pt. pt. pt. pt. 0—10, 10 21 || 29-202 || 45-2 | 43-7 |1-5 | 0-8 | 0-2 | 14 |} —:18:— 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:—) 8-0 || Loose seud; cirro-cumulo-strati. 1 | 273 |51-2 |47-8 | 34 0-4 |0-3 | 17 || 18:—:—]| 9-9 || Smoky scud; id. 2 288 | 51-0 | 48-1 |2-9 || 0-3 |0-0 | 16 || —:20:—|! 9-5 || Cirro-stratous scud; cirro-strati; loose camuli, 3 |i 307 || 53-3 | 49-8 |3-5 |) 0-1 | 0-1 | 16 || —:21:—|]| 88 Id. ; ada id. (0) 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. ; id. ; id. round a 6 | 389 ||49-5 |45-5 |4-0 || 0-1 |0-1 | 21 | 23:24:—|| 9-5 Id.* id. ; id. 7 | 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 Td. on horizon. y 9 | 454 || 40-2 | 39-8 | 0-4 ||0-1 | 0-1 | 20 | 0-2 Id. Dd} 10 | 469 | 39-9 |39-7 |0-2 || 0-1 |0-1 20 0-5 Td. | 11 I 490 || 38-5 | 38-2 |0-3 || 0-1 | 0-0 | 20 7-0 Td. ; cirro-strati. 12 | 514 40-2 | 40-0 | 0-2 || 0-0 | 0-0 | 18 9-9 || Scud and cirro-stratus. Eee 5 Sunday—Seud, loose cumuli, and cirro-str. ; thick cir. | 12 o4 29-775, |-B8r5 | 49: | 6008, 10:2 Pea) pe) rane { tee and lunar halo in the evening. 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 Id. ; 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 Id. ; rain?” 18 | 883 | 46-5 | 45-2 | 1-3 || 0-2 | 0-1 | 17 10-0 Id. ; 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 Id. ; id. 21 886 | 49-1 |48-1 | 1-0 || 0-4 | 0-3 | 17 || 17: 19:—J 10-0 || Loose scud; cirro-stratous scud ; cirro-strati; rain! 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 ass id. 130 | 878 || 55-4 |53-0 |2-4 | 1-0 | 1.3 | 18 || 18: —:—| 10-0 | Ia; id. 1 | 880 || 56-2 | 53-3 | 2-9 || 2-8 |1-0 | 17 || 18:—:—j] 10-0 | Ia.; id. 2 | 901 | 56-5 | 53-8 | 2-7 || 1-8 |0-5 | 18 || 18:—:—} 10-0 Ges id. 3 | 895 || 56-7 | 54-2 | 2-5 || 0-5 | 0.4 | 18 || 19:—:—|] 10-0 || Ia.; 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 red. rel 913 || 57-3 | 53-8 |3-5 | 1-5 | 0-7 | 18 || 9-8 Id. ; id. ; id. 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 13-0 | 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 fine 14 | 30-001 | 54-6 | 53-4 | 1-2 | 1-1 | 0-6 | 18 || | 10-0 || Seud; id. ? rain” (rain, 15 004 || 54-7 | 53-6 | 1-1 | 0-7 | 0-4 | 19 | | 10-0 || Scud and eirro-strati; clouds rather broken ; rain”® 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 || Seud ; cirro-strati; cirro-cumulo-strati. 18 012 || 54-3 | 52-0 | 2-3 |10-5 {0-8 | 18 || | 9.2 || Ia; id.; id. i9 | 017 |53-8 |51-2 |2.6 | 0-5 |0-4 | 19 |—:19:21]| 9.0 || Cir.-str. seud; thick woolly cirri and cir.-str.; scud on | 20 | 032 || 54-7 | 52-0 |2-7 | 0-2 |0-1 | 20 —:19:—|| 9-5 || As before. @ (Cheviot. 21 | 043 55-3 | 51-4 |3-9 |-0-2 | 0-1 | 20 || 20: —:— 9-5 || Loose scud; loose cir.-cum.-str.; sheets of cir. and cir,-str. 22 | 040 | 54-6 | 51-3 | 3-3 ||0-3 | 0-1 | 16 io 2:20:21) 7-5 | Cirro-stratus and woolly cirro-cumulo-strati. 23 038 | 56:0 | 51-8 | 4.2 | 0-1 |0-1 | 20 | —: 21:21] 8-5 | Thick woolly cirri and cirro-stratus. @| 14.0 || 017 ||59.2 | 54-5 .}4-7 |/0-1 | 0-1 | 18 || —: 21: — | 9-0 || Woolly cirro-cumuli ; woolly cirri and cirro-strati. @} 1 |30-005 | 60-3 | 55-0 |5-3 ||0-2 |o-1 | 16 | —:21:—| 8.5 Ia. ; id. 2 || 29-975 | 61-4 [54-3 }7-1 ||0-3 }0-8 | 19 ||—:21:—! 9.0 | Id; 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.= 24. The motions of the three strata of clouds, Se. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Oct..184 11", Observation made at 11> 10™, Oct. 132 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. 1 Hovurty METEOROLOGICAL OBSERVATIONS, OCTOBER 14—16, 1845. 243 THERMOMETERS. WIND. Dry. | Wet. 61-4 62-5 61-3 59-2 58-0 58-5 58-4 56-6 56-9 57-9 57-1 55-7 55-2 54-7 55-0 56-7 56:3 55-0 Maximum Clouds, Se. : C.-s.: Ci., moving from Sky clouded. Species of Clouds and Meteorological Remarks. Woolly cir.-cum.; woolly cir. & cir.-str.; loose seud 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. Id. Id. ; slight drizzle. Id. ; id. Id. Id. Ragged scud ; mass of cirro-stratus; deep blue to E. @ Scud on horizon ; cirro-cumulo-strati; cirro-strati. Loose seud ; id. ; id, e Id. ; sheets of thin cirro-strati. Id. ; cirro-cumuli ; cirro-strati. Seud ; cirro-strati. Cirri and cirro-strati to E. Cirro-strati to SE. Id. Scud moving rapidly. Seud ; cirro-cumulo-strati. Seud ; cirro-cumulo-strati. Id. on E. and 8. horizon. Id. Cirro-cumulo-strati ; cirro-strati. Scud ; drops of rain. Id.; shower? since last. [cir. haze to E. ) Scud 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 sheets of curled cir.-str. to SE. © Wyery ewwvwvy Seud and loose cumuli. Td. Id. Td. Thick scud. Id. Id. ; cirro-cumulo-strati. Scud ; id. ; cirro-strati ; cirri. Id.; cirrous mass; lunar halo. 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 ms of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. : 244 Hovurty MrreoroLoGicaL OBSERVATIONS, OcToBER 16—19, 1845. | THERMOMETERS. WIND. Clouds ee | - |) Maximum | 80-2 Cos Ci By Species of Clouds and Meteorological Remarks at 32°. || Dey. | Wet, | Dift.|| force in [Prom| ™oving | clouded. 7 a | | 1, | 10™, in. | © | c | © Hans. | tba | pt || pt. pt pt || oo. 29-657 || 50-0 | 46-4 | 3-6 || 1-2 |0-8 | 19 ||) 23:—:—| 10-0 || Seud. 632 | 50-1 | 46-9 | 3-2 || 1-4 | 1-1 | 19 | 10-0 || Ia. ‘ [a few drops of rain. } 29-622 | 50-4 | 47-3 | 3-1 || 2-7 1-1 | 19 10-0 || Seud on hor. ; sky covered with cir. haze; lunar halo; 590 || 49-7 | 47-3 | 2-4 2-6 |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 | Td. 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 rain, ) | 553 || 50-0 | 47-6 | 2-4 || 2-0 | 2-2 | 19 10-0 Id. ; id. ; id. 569 | 49-6 | 47-7 | 1-9 || 2-7 | 1-6 | 20 || 23:—:—] 10-0 11 lia te id. 577 || 48-4 | 46-6 | 1-8 || 1-6 |0-8 | 21 || 23:—:—] 10-0 1G Be id. 570 | 49-3 | 47-8 | 1-5 | 0-7 |0-5 | 19 |/23:—:—| 10-0 | Thick scud ; rain” | 550 || 50-5 | 48.7 | 1-8 || 1-3 |0-7 | 18 ||23:—:—] 10-0 1G flock of gulls moving westward. | 535 | 52-3 49-3 |3-0 || 1-8 |1-0 | 20 ||23:—:—| 10-0 || Seud; cirro-cumulo-strati; cirro-strati. H 538 | 53-0 | 50-3 | 2-7 || 1-3 | 1-1 | 20 |) 25:—:—|! 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 like 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 Id, ; 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. ; rain”? 443 || 54-8 | 53-8 | 1-0 ||0-5 |0-3 | 22 |} 24:—:—] 10-0 Id. ; id. ; rain’? 452 || 55-6 | 54-0 | 1-6 || 0-5 |0-4 | 22 10-0 das id. ; id. 453 || 57-0 | 54-3 | 2-7 || 1-7 |0-8 | 21 10-0 Id. | 465 | 56-8 |54-3 | 2-5 |11-4 |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 || Seud. 508 || 56-2 | 53-9 | 2-3 || 3-8 | 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 [3-4 | 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 || 4-5 |3-7 | 20 || 294:—:— 9-8 Id. : 569 || 54-4 | 50-6 | 3-8 |/3-1 [1-5 | 21 ||/24:—:—}| 9-2 Id. ; cirro-cumulo-stratus, [eir. and cir.-cum. | 564 | 55-4 | 50-6 | 4-8 || 2-9 | 1-9 20 || 24:26:—|| 9-2 || Loose seud resting on Cheviot; cir.-str. scud ; mottled | 565 | 55-7 | 51-0 |4-7 || 2-6 |1-6 | 20 ||}24:—-:—| 9-0 || Scud; cirro-cumulo-strati; cirri. 558 || 56-3 |51-6 | 4-7 113-3 |4-3 | 20 |]/23:—:—| 9-8 Id.; cirro-strati. 547 | 56-7 | 53-2 |3-5 || 3-2 | 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. : | 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 oc ar 556 | 58-6 |54-1 14-5 ||5.2 |4-2 | 26 |}24:—:—] 2.2 Id. ; id. I 597 55-7 149-8 | 5-9 || 7-3 |2-1 | 24 |} 25:—:— 1:5 IGS id. 653 || 53-3 |47-6 |5-7 || 3-2 |3-6 | 21 || 26:—:—]| 3-5 Id. ; 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. 763 |50-0 | 46-4 | 3-6 || 1-0 |0-2 | 20 0-3 || Patches of scud and streaks of cirri. 786 | 49-3 | 45-9 | 3-4 |/0-5 |0 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. 870 | 46-0 | 43-8 | 2-2 ||0-2 |0-1 | 18 8-5 | Cirro-strati; cirro-cumulo-strati and cirri. _ z Shy i : '{Sunday—Cloudy, with occasional sunshine and heavy 233] 29-810 || 48-0 |47-7 |0-3 10-6 |0-0| || ||... MG caren oa ee 29-509 | 54-4 | 53-4 1-0 ||3-9 | 1-9 | 20 10-0 | Scud; cirro-stratus; rain! 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! 16 - 507 || 49-7 | 47-2 | 2-5 || 3-1 | 1-6 | 20 10-0 || Id.; ids ; 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. The | motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Oct. 164115. Observation made at 114 8m, Oct. 174.5%. Portion of the turkey-feather vane disappeared, so that the directions for a day or two have probably been taken a point too much south of west. = | | Hovurty METEOROLOGICAL OBSERVATIONS, OcToBER 19—22, 1845. 245 4 THERMOMETERS. WIND. Clouds, Gott. || Baro- : 2 C.-5.: Ci., Mean || METER i . Ah ee Pict Species of Clouds and Meteorological Remarks. Mime. || at 32°. | Dry. | Wet. | Diff. eee ye fem || | | ° ° © || rps. | lbs, | pt. || pt. pt. pt. |! oto. | 47-1 |45-6 |1-5 || 3-1 | 1-3 | 20 10-0 | Thick mass of seud and cirro-stratus? rain! | 47-4 | 45-0 | 2-4 ||2-4 | 1-4 | 20 10-0 | Id. ; id. | 45-9 | 43-4 | 2-5 |/3-9 |1-1 | 18 | 23:—:—] 5.0 | Scud; seud lying on Cheviot ; cirro-strati on horizon. | 45-5 | 42-0 |3-5 || 5-1 |1-8 | 20 |} 24:—:—| 92.5 | Td.; cumuli and nimbi; cirro-strati. (>) 21 | 46-0 | 42-7 | 3-3 |) 4.3 | 2-6 | 20 |) 24:—:—] 7.0 | Scud and loose cumuli; wild-looking sky. 99 46-7 |44-0 |2-7 ||4-5 |2-6 | 20 /24:—:—]| 6.0 Id. 8 23 47-9 | 44-3 |3-6 || 5-3 |3-5 | 20 || 24:—:— 8-0 Id. (s) 0 0 51-2 | 45-4 |5-8 || 6-8 | 7-0 | 24 || 25:—:— 3-0 Id. © 4 50-8 |44-8 |6-0 | 7-9 |5-3 | 24 | 26:—:—} 1.5 Id. fo) . 2 50-6 | 44-4 |6-2 ||8-9 |3-7 | 25 | 26:—:— 3:0 | Id. © 3 50-7 |46-0 |4-7 || 5-5 13-8 | 26 | 26:—:—]} 0.8 | Id. (0) 4 49-4 | 42-9 |6-5 || 6-3 |5-2 | 28 0-2 || Patches of scud and haze on horizon. (0) 5 47-3 | 41-5 |5-8 ||6-3 |3-6 | 26 0-2 Td. (0) 6 46-3 |40-3 |6-0 || 4-0 |2-2 | 25 || 26:—:—|| 0-3 || Patches of scud and loose cumuli to S.; thin cirri. 7 44-7 | 40-6 | 4-1 || 3-7 |2-0 | 21 0-0 || Clear. 8 45-0 | 39-7 | 5:3 ||3-4 | 3-3 | 25 0-0. Id. 9 44-7 | 39-9 |4-8 ||2-0 |1-1 | 25 0-0 Id. »)) 10 44-3 | 39-3 | 5-0 || 1-8 |1-3 | 25 0-0 Td. y 11 43-5 | 39-2 |4-3 || 1-0 |0-5 | 24 0-0 Id. »)) 12 43-9 | 38-4 | 5-5 || 1-6 |0-8 | 23 0-0 Id. y 1 43-5 | 38-1 | 5-4 || 1-2 |0-9 | 23 0-0 || Clear; faint auroral light ; altitude 5°. »)) 14 41-6 | 37-9 |3-7 ||0-9 |0-7 | 24 0-0 Id. ») 15 42-2 | 38-6 | 3-6 ||0-9 |0-4 | 24 0-3 || Thin cirri, causing a coloured lunar corona. ») i 41-6 | 37-9 | 3-7 ||0-6 |0-3 | 20 0-0 || A very thin cirrous haze seen near the moon. ») 40-6 | 37-4 |3-2 || 0-3 |0-3 | 21 5-0 || Thin cirri over the sky ; portion of a lunar halo. ») 41-8 | 38-7 | 3-1 ||0-5 |0-4 | 21 |—:29:—|| 7-0 || Cirro-cumuli; cirrous haze. } 42.6 | 39-8 |2-8 ||0-6 |0-3 | 20 ||—:29:—|| 6.0 Id. 5 cirro-strati; cirrous haze. »)) 42-2 | 39.6 | 2-6 ||0-3 |0-1 | 23 | —:30:— 5-0 Fine mottled and ribbed cir.-cum. ; cir.-str. in patches; cir. haze- 44-2 |40-9 |3-3 || 0-4 |0-4 | 22 || —:29:—J]| 8-5 || Cirro-cumulo-strati and cirro-strati; cirrous haze. © 46-0 |42-5 | 3:5 || 0-9 |0-4 | 25 || —:—:29|| 9-0 | Thick woolly and mottled cirri; cir.-str.; cir. haze. © 48-6 |43-9 |4-7 || 0-6 |0-4 | 24 || —:30:—|| 9-5 || Sheets of cir.-str., rad. from N. and §. ; cir.-cum. ; send 49-0 | 43-3 | 5-7 || 0-6 |0-9 | 25 || —:30:—|| 9-8 || As before. {on Cheviot. 50-3 | 45-5 |4-8 || 1-2 |0-4 | 24 /—:30:—|]} 9.2 Id. 50-8 | 46-2 |4-6 || 1-7 | 1-7 | 24 9-8 || Thick mass of cirro-strati. 50-3 | 46-9 | 3-4 || 2.2 |0-6 | 23 || —:30:—|! 10-0 Id. ; bank of cir.-str. scud on hor. 51-3 |47-9 | 3-4 || 1-1 |0-5 | 23 | 25:30:— || 9-8 || Scud; sheets of cir.-str.,rad. from N. and §.; cir.-cum.@ 51-7 |47-7 |4-0 || 1-6 |0-7 | 23 || 96:—:— 9-9 Id. ; ade id. 51-3 |47-6 | 3-7 || 1-4 |1-6 | 24 || 26:30:—|| 10-0 || Patches of scud ; cir.-cum.-str. ; cir.-str. and cir. haze, 50-8 | 47-0 | 3-8 || 1-0 |0-5 | 20 10-0 || Dense mass of cirro-stratus. 49-6 | 46-4 | 3-2 || 0-6 |0-1 | 20 10-0 Id. 49-2 | 46-5 |2-7 ||0-5 {0-1 | 22 10-0 Id. 49-3 | 46-3 | 3-0 || 0-7 |0-7 | 24 10-0 Id. 48-3 | 46-0 | 2-3 | 0-6 |0-1 | 20 8-5 Id. ; stars dim. 47-7 |45-2 | 2-5 || 0-3 |0-1 | 20 6-0 | Cirro-cumulo-strati, cirro-strati, and haze. } 46-7 | 44-3 | 2-4 ||0-3 |0-1 | 22 1-0 || Cirro-strati, cirri, and cirrous haze; lunar corona. __)) 45-9 | 43-7 |2-2 || 0-1 |0-0 | 17 || —:28:—) 3-0 || Cirro-cumulo-strati; cirrous haze ; id. ») 48-3 | 45-3 | 3-0 || 0-3 | 0-1 | 20 3-5 Id. ; faint auroral light to N. y 46-0 | 44-2 |1-8 || 0-4 |0-2 | 20 0-5 Cir.-str. and woolly cirri; faint auroral light to N.; col. lun. cor. ) 46-4 | 44-0 | 2-4 ||0-3 |0-2 | 20 1-5 Td. ; id. ; id. y 45-0 | 43-0 | 2-0 ||0-3 |0-1 | 22 1-5. | Id. ; coloured lunar corona. y 46-5 | 43-6 |2-9 || 0-2 |0-2 | 20 7-0 || Woolly cirri; cirrous haze; cirro-strati; lunar cor. ) 45-2 |43-2 |2-0 ||0-3 |0-1 | 19 | 28:26:—|| 9-5 || Patches of seud; woolly cirri and cirro-strati. (>) 46-2 | 43-7 |2-5 | 0-2 |0-1 | 20 || —:26:26|| 7-0 || Woolly cirri and cirro-strati; cir.-str. seud on hor. © 90:0 | 45-8 | 4-2 ||0-7 |0-4 | 21 || 27:—:—|| 9-7 || Scud; cirri and cirro-strati. 50-5 |46-5 | 4-0 ||0-9 |0-5 | 21 ||}26:—:—j|| 7-0 || Ia; id. 52-2 |47-7 |4-5 | 0-8 |0-4 | 22 |}96:—:—|| 6-5 Id.; sheets of woolly cirri and cirro-strati. e _ MAG. AND MET. oss. 1845. “The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, BE. = 8,S.=16, W.= 24. The ions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 246 Hovurty METEOROLOGICAL OBSERVATIONS, OCTOBER 22—24, 1845. Time. || at 32°. || Dry. | Wet. THERMOMETERS. WIND Maximum pir, || force in } 1h. 969 || 52-3 | 47-7 938 || 52-4 | 47-9 912 || 51-7 | 49-0 888 || 51-5 | 48-2 50-3 | 47-4 854 | 49-7 | 47-0 843 | 49-6 | 47-0 815 | 49-8 | 47-4 OnNau ston = co ay oe BPN ee Se Be swmoekonwpw Of oS rs _ fo) RENEE HOOT OP OFS EN Em DPOBNEWRAWNGTHHNHKE WE 2:9 || 1-7 10™, Clouds, ¥ oe | Species of Clouds and Meteorological Remarks. ; from pt. pt. pl 0—10. 26:—:—|| 9-7 || Seud; sheets of woolly cirri and cirro-strati. € 26:—:— 8-7 || Scud and loose eumuli; woolly cirri and cirro-strati. 26:—:—| 7-0 Id. ; id. 25:28:28] 9-5 Ta. ; woolly cir. and cir.-str. thickening, 25 : 26: 26 9-8 || Scud and loose cumuli; cirri and cirro-strati. 25:—:—| 8-5 | Seud; cirri and cirro-strati; cloud tinged red. 1-5 Id. on S. horizon. 2-0 Id. 8-0 Id. 0-5 || Scud near horizon. 0-2 || Hazy near horizon. 0-3 || Scud or cirvo-stratus near horizon ; lunar corona. 0-3 || Scud or cirro-stratus near horizon ; lunar corona, 9-5 || Cirro-stratous seud ; cirro-cumulo-strati ; rain? 10-0 Id. ; id. ’ 8-5 Td. ; id. 7 —— 24 || 13-0 Td; id. ; lunar cor. } 5-0 Id. ; id. } 9.2 Tats id. As OS Id. ; patches of loose seud on Cheviot; —:24:—]) 9-8 Id. ; id. (eir.-str.; cir —:24:—| 9.0 Tdi id. ¢ —:25:-—|| 8-0 || Loose cirro-stratus ; cirro-str.; cirri; patches of seud. —:24:—)}| 9-8 || Cirro-stratous scud; id. ; id. D 24 :—:— 9-6 || Seud; cirro-stratous seud. 23:—:—|| 9-8 | Id.; id. 23 v= — ||, (958) ||| Ids; id. 23:—:—)|| 9-7 || Cirro-stratous seud ; cirro-cumulo-strati. 23:23:—|| 9:8 Id. ; id. 10-0 Id. 10-0 Id. 10-0 Id. 9-9 Id. 9-9 Id. 8-0 Id. 6-0 Id. ; cirro-cumulo-strati. 7-5 | Cirro-stratous scud ; cirro-cumulo-strati. 9-0 Id. ; id. —:22:— 7-0 Id. ; id. 9-8 Id. ; id. 9.8 ihe id. —:22:—j| 8-0 Id. ; id. —:22:—|| 9.5 Id, ; id. —:22:—]) 9-8 Id. Seep ie 10-0 Id. ; dense mass of cirro-stratus. — :22:—|| 10-0 Ides id. —:22:— 9-5 Id. ; sheets of cirro-strati. —:22:—]|| 9-8 Id. ; id. 21:20:—)|) 6-0 | Scud; cirro-cumulo-stzati. 5 21:—:—|| 9-5 || Loose and cirro-stratous seud, 20:21:—|| 10-0 || Seud; cirro-stratous scud. 20:21: — 9-0 Id.; cirro-cumulo-strati. 20:—:—|| 10-0 Id. ; id. 20:—:—| 10-0 Id. ; id. 10-0 ayy id. 10-0 Id. ; id. The direction of the wind js 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, Se. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 580 560 559 558 572 577 593 610 618 622 (624) 627 617 619 594 582 570 559 564 561 567 567 29:570 573 569 | Hovurty MErEoROLOGICAL OBSERVATIONS, OcTOBER 24—27, 1845. 247 THERMOMETERS. WIND. Clouds, jee Se. :C.-s.: Ci.,|| Sk e " ye coal oe ue ae moving Aiea _ ai Species of Clouds and Meteorological Remarks. Ih, /10m, are ° ° © || ibs. | Ibs. | pt. |! pt. pt pt. || o—10. 49-9 |47-7 |2-2 || 1-6 | 1-3 | 20 10-0 || Seud. 49-8 | 47-2 | 2-6 || 2-3 | 1-6 | 20 7-0 || Scud and cirro-stratus. 50-6 | 47-5 |3-1 || 1-9 | 0-6 | 20 7-0 Td. 51-0 | 48-0 | 3-0 || 2-3 | 1-2 | 20 9-9 Td. 50-9 | 48-2 | 2-7 || 1-6 | 1-0 | 20 7-0 || Scud and cirro-stratus; sky to S. 50-4 |48-9 |1-5 |} 1-6 | 1-1 | 24 10-0 Id, 5 very dark ; rain? 47-0 | 44-0 |3-0 || 1-7 |0-3 | 24 10-0 Id. [large lunar corona. } 45-4 | 42-7 |2-7 || 1-1 |0-1 | 23 7-0 | Civ.-cum.-str. and cir.-str. radiating from NE. and SW.; 44-6 | 40-8 |3-8 || 1-2 |0-8 | 24 6-5 || Thick woolly cirri and cirrous haze. } 42-0 | 39-0 | 3-0 || 0-4 |0-2 | 26 1-0 | Bands of cirro-strati and woolly cirri to SE. ») 40-6 | 38-4 | 2-2 || 0-2 |0-1 | 24 0-8 || Cirro-strati to SE. y 37-8 | 36-6 | 1-2 || 0-3 |0-0 | 22 2:0 || Cirro-strati, cirri, and cirrous haze on horizon. 39-4 | 37-5 |1-9 || 0-1 | 0-1 | 20 0-5 || Streaks of cirri and haze on horizon. 0} 43-0 | 39-7 |3-3 || 0-2 |0-2 | 24 0-5 Id. (6) 45-0 | 41-0 | 4-0 || 0-3 |0-2 | 20 0-3 Id. (0) 46-6 | 41-4 |5-2 ||0-7 |0-3 | 24 0-3 || Patches of cumuli to N.; cirrous haze on horizon. © 47-4 |41-7 |5-7 || 0-7 |0-4 | 26 0-3 || A few patches of eumuli ; id. (0) 48-5 | 41-7 |6-8 ||0-5 |0-3 | 24 0-5 Id. ; id. (0) 48-0 | 41-6 |6-4 || 0-5 |0-4 | 24 0-5 Id.; id. (0) 46:3 | 41-7 | 4-6 || 0-4 | 0-4 | 24 || 26:—:— || 0-8 |) Masses of cumuli; cirri and cirrous haze. 44-7 | 40-3 |4-4 || 0-3 |0-2 | 24 || 24:—:—|| 7-0 || Scud; cious haze. 40-7 | 38-3 | 2-4 || 0-3 | 0-1 | 20 : 2-0 Id.; id. 40-2 | 37-7 | 2-5 ||0-2 |0-1 | 20 0-5 || Haze on horizon. 40-0 | 37-9 | 2-1 || 0-1 {0-0 | 24 0-2 Id. 40-2 | 37-6 | 2-6 || 0-2 |0-2 | 20 0-5 Id. 40-8 | 38-0 | 2-8 ||0-6 | 0-4 | 20 0-2 Id. 39-8 | 37-5 | 2-3 ||0-5 |0-6 | 20 0-5 |! Cixrous streaks. 38-7 | 36-8 | 1-9 ||0-8 | 0-5 | 20 0-8 || Patches of cirro-strati and cirri. 47-5 | 44-6 |2-9 || 3-3 | 1-1 | 20 || 22:—:—|| ------ Sunday—Overcast ; scud and cirrous haze. 49-6 | 46-4 |3-2 3-6 | 1-4 | 21 9-7 || Scud and cirro-stratus ; drops of rain. 49-7 | 46-8 | 2-9 }|2-1 |2-0 | 21 9-9 Id. 50-0 | 46-6 |3-4 || 2-7 | 2-0 | 21 9-7 Id. ; drops of rain. 49-9 | 46-9 | 3-0 || 3-5 |1-9 | 21 9-0 Td. 50-1 | 47-2 | 2-9 || 2-3 | 1-5 | 22 9-0 Td. 50-9 | 47-6 | 3-3 || 1-5 | 2-4 | 25 9-9 Id. ; very slight drizzle. 51-2 | 47-6 |3-6 ||3-1 |2-1 | 22 || 24:—-:—]] 10-0 || Patches of scud; thin cirro-stratus ; drizzling rain’? ) 50-4 | 47-3 |3-1 ||2-1 |1-5 | 20 | 25:—:—|| 10-0 || Scud; cirro-stratus. 50-0 | 47-8 | 2-2 || 1-5 | 0-4 | 22 || 25:—:—|| 10-0 Id. ; id 51-0 |47-9 |3-1 || 1-7 | 0-7 | 21 || 25:—:—]| 10-0 Id. ; id 51-7 |48-3 | 3-4 |/0-9 |0-4 | 21 || 25:—:—|| 10-0 | Ia; id (51-5) (48-5) (3-0) || --. | --- (10-0) || Ia.; id 51-2 | 48-6 | 2-6 || 0-8 | 0-2 | 20 || 25:—:—|| 10-0 ds id. 52-7 |48-7 |4-0 || 0-5 |0-4 | 20 || 25:—:—|| 10-0 || Id.; id. ; drops of rain. 51-0 | 49-0 |2-0 ||0-7 | 0-2 | 20 || 25:—:—]) 10-0 Id. ; ides drizzling rain” 50-2 |48-9 |1-3 ||0-3 | 0-1 | 19 || 22:—:—|} 10-0 || Cirro-stratous scud; cirro-stratus ; rain?” 49-7 |48-7 |1-0 ||0-2 |0-2 | 20 || 24: 22:—|| 10-0 || Scud; cirro-stratous seud ; cirro-strati ; rain”? 50-0 | 49-3 | 0-7 ||0-6 | 0-3 | 20 10-0 || Scud and cirro-stratus ; rain”? 51-0 | 50-0 | 1-0 || 0-3 |0-2 | 20 10-0 Eda: id. 51-5 | 50-6 |0-9 |/0-5 | 0-4 | 20 10-0 || Dark; rain”? 52-3 | 51-4 |0-9 ||0-6 | 0-1 | 20 10-0 Tidy; id. 53-4 | 52-0 | 1-4 ||0-4 | 0-2 | 21 10-0 Id. ; id. 53-8 | 52-2 |1-6 || 0-3 |0-3 | 21 10-0 Td. 54-2 | 52-3 | 1-9 ||0-9 |0-6 | 22 10-0 Td. 54-2 |52-1 | 2-1 ||0-6 |0-4 | 20 10-0 || Dark. | 54-2 | 52-0 | 2-2 || 0-6 |0-4 | 20 10-0 || 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, 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. | TuenMomerens. WIND. Gott BARo- Mean METER Maximum Time. || at 32°. || Dry. | Wet. | Dift.|) force in [Prom 14, (107, a oh in. 2 S ° | lbs. | Ibs. | pt. 27 15 || 29-572 || 54-6 | 51-7 |2-9 | 1-0 |0-6 | 24 16 582 || 55-0 |51-7 |3-3 || 1-0 |0-6 | 24 17 586 || 53-4 151-9 |1-5 || 1-8 |0-7 | 21 18 590 || 54-2 |51-5 |2-7 |/0-8 |0-5 | 21 19 600 | 53-8 |51-0 |\2-8 || 0-5 | 0-5 | 20 20 614 || 52-8 |50-6 | 2-2 || 0-2 |0-3 | 18 21 625 || 53-2 |51-2 |2-0 ||0-6 |0-7 | 19 22 625 || 54-6 |51-7 |2-9 || 1-1 |0-8 | 19 23 629 || 56-0 |51-7 |4-3 || 1-3 |0-6 | 20 28 0 647 || 56-3 |52-8 |3-5 || 1-6 |0-4 | 18 1|| 644 || 54-9 | 52-6 |2-3 ||0-9 |0-4 | 18 2 637 | 55-6 [52-7 |2-9 ||0-9 |0-5 | 18 3 643 || 54-4 151-9 | 2-5 || 1-4 |0-8 | 19 4 626 || 53-9 |51-3 |2-6 |/1-7 |1-4 | 19 5|| 639 ||52-5 [51-3 |1-2 || 1-4 |1-1 | 19 6 628 || 53-0 |51-0 | 2-0 || 1-6 |1-5 | 20 7 638 || 52-7 |50-7 | 2-0 ||0-7 |0-5 | 22 8 639 || 52-6 |50-9 |1-7 || 0-6 | 0-5 | 22 9 630 || 52-2 |50-6 |1-6 || 0-6 |0-6 | 21 10 620 || 52-5 |50-8 |1-7 || 0-9 | 1-2 | 21 11 610 || 51-8 |50-2 | 1-6 || 1-5 |0-8 | 20 12 621 || 52-3 |50-6 |1-7 || 1-1 | 1-3 | 20 13 615 || 52-5 |50-6 |1-9 | 1-7 |1-1 | 20 14 616 || 53-0 |50-6 | 2-4 || 1-1 |0-7 | 20 15 612 || 52-9 |50-5 | 2.4 || 1-0 |0-9 | 20 16 610 || 52-3 |50-0 |2-3 ||0-9 |0-3 | 20 17 608 || 52-6 | 50-3 |2-3 || 0-6 |0-9 | 19 18 593 || 51-6 |50-0 |1-6 || 0-6 |0-6 | 19 19 579 || 52-2 |51-2 |1-0 ||0-8 |0-5 | 20 20 583 || 52-5 |50-7 |1-8 || 0-5 |0-6 | 21 21 576 || 52-6 |50-8 | 1-8 ||0.5 |0-6 | 20 22 576 52-3 |51-1 |1-2 | 0-8 |0-3 | 20 23 589 || 52-6 | 51-4 |1-2 | 0-6 | 0-2 | 20 29 0 587 || 53-2 |51-2 |2-0 || 0-8 |0-5 | 20 1 575 || 52-8 151-0 |1-8 || 0-4 |0-2 | 22 2 561 || 52-5 |51-0 | 1-5 ||0-4 |0-0 | 17 3 551 || 52-2 |50-3 |1-9 || 0-2 |0-1 | 16 4 527 ||51-7 | 49-8 |1-9 || 0-1 |0-1 | 19 5 516 || 50-4 | 49.0 | 1-4 | 0-1 |0-1 | 20 6 511 || 49-8 |48.7 | 1-1 |} 0-2 |0-2 | 19 Ul 498 || 49-5 | 48-4 |1-1 | 0-2 |0-1 | 18 8 481 || 49-4 |48.4 |1-0 ||0-1 | 0-0 | 18 9 463 || 49-6 |48-7 |0-9 || 0-0 |0-0 | 20 10 444 | 49-7 |48.9 |0-8 || 0-1 | 0-0 11 429 || 49-8 | 49.1 |0-7 || 0-0 | 0-0 | 20 12 407 || 49-7 | 49-2 |0-5 ||0-0 | 0-0 | 22 13 | 29-385 || 51-7 |50-9 |0-8 || 0-3 |0-1 | 18 14 374 || 52-0 |51-1 |0-9 | 0-3 |0-2 | 19 15 357 || 52-0 |51-3 |0-7 || 0-7 |0-3 | 18 16 343 || 52-2 |51-5 |0-7 10-6 [0-5 | 18 17|| 353 || 54-3 |53-1 | 1-2 |] 1-1 |0-5 | 19 18|| 370 ||54-1 |52-9 |1-2 || 1-1 |1-0 | 20 19|| 398 || 53-8 |52-3 | 1-5 || 1-2 |0-2 | 20 20 437 || 53-8 |53-0 |0-8 |0-3 |0-1 | 20 21|| 470 ||53-0 |51-0 |2.0 ||0-8 |04 | 20 22") 510 |53-9 | 51-1 |2-8 10.2 |0-6 | 22 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. hi motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Clouds, moving from \Se. : C.-s.: Ci., HovurLty METEOROLOGICAL OBSERVATIONS, OCTOBER 27—29, 1845. Sky clouded. Species of Clouds and Meteorological Remarks. Send and cirro-stratus ; stars dim. Id. ; very dark. Id. ; clouds broken. © Id. ; id. Scud ; cir.-str.; the upper clouds tinged with red to SE. Id.; cirri; cirro-strati. Loose seud ; cirro-stratous scud ; cir.-cum. ; cir.-str. Seud ; cirro-strati. Id. ; id. ; cirri. lds; ts id. Id. ; id. ; id. Id. ; id. 1Gbyp id. des id. Id. ; aides rain? Id. ; id. Id.* id. ids id. Send and cirro-stratus. Td. Thin cirro-stratus scud 2 Send on horizon. Scud; cirrous haze ? x Id. ; id. Id. Id. Id. Id. Id. Id.; cirro-stratous scud and cirro-stratus. Id.; dense cirro-stratus and haze. Tot: id. ; rain? Id. ; id.; rain! Td. ; id. Id. ; id. ; rain®? IGEE id. Id. ; id. Id. ; id.; rain! : IGS id. ; slight drizzle. Id.; rain” Id. ; id. Id. Id. ; id. Td.; very dark; rain”? Rain’? Id. Dark. Id. Very slight drizzle. Ihe clouds broken at 155 40™, Seud. Id. Id. ; cirri. Id.; rain! Id. ; cirro-cumulo-strati; cirro-strati; cirri. Id. ; cirro-strati. Hovurty MEerEorRoLoGicaL OBsERVATIONS, OcTOBER 29—NoveEMBER 1, 1845. 249 THERMOMETERS. WIND. : Sk aay eee aateel Species of Clouds and Meteorological Remarks. Wet. iff. 1h. |10=, s ra Beeee SCHORR HS QH HE QAh wi Scud and loose cumuli; cumulo-strati; cirro-strati. Loose cumuli; thin cirro-strati. Id. ; cirro-strati; cumuli. Cirro-stratous scud; streaks of cirri and cirrous haze. © id. (0) cirro-strati; cirrous haze. (O) cirri; cirrous haze. Np COnNnukwWNWOK Ow Id. Cirro-strati to S. Clear. Td. Patches of cloud. Streak of cloud to N. Clear. We BH Htnnwaawiukd wm oF SSS SO9SSSSSo rr HEHE Id. Cirro-strati on S. and W. horizon. 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. Bs Be 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.©@ Scud ; woolly cirri; cirro-strati. (Ss) Id. ; id. ; id. Id.; cirro-cumulo-strati; cirri; cirro-strati. (2) Cirro-stratous scud. Id. ; cirri; cirro-strati. (0) id. ; id. id. ; id.; clouds tinged red. SSSSSS SSSSSSSSSH HOEK L Very dark. Id. Scud. [light to N. ; aurora ? Patches of send ; 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 913 i : ‘ : 2 j . Cirro-strati and cirrous haze on horizon. 932 : . : . : . Cirrous haze on E. horizon. 932 : : a . d dl Id. ; sky milky to E by S. 931 - : : . B : Cirro-strati and cirri on horizon. 938 : Fi : : b —— : Woolly and mottled cirri, rad. from E. and W. ; cir.-str. 961 : : . : - 228: : Cirro-cumulo-strati ; cirri. 973 : : 8 j +98: . Id. ; id. 985 4 ‘ A i 4 :QO7: : Id. 5 id. 979 " ; i li cl H Cirro-cumulo-strati and cirro-strati ; cirri. 982 : . F H : Cirro-stratous scud ; cirro-strati. 980 4 i 4 dl H Dense mass of cirro-stratus. 977 : ; : ; Hl 4 Id. 976 5 i ; 4 4 i Id. 976 ‘i ij 4 i A : Id. 980 |! 47- 4 Ei : ; d Id. _ @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 “motions of the three strata of clouds, Sc. (seud), O.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. }} Oct. 314 215. Observation made at 21» 5™, 250 Hovrty METEOROLOGICAL OBSERVATIONS, NOVEMBER 1—4, 1845. THERMOMETERS. WIND. Clouds ee 7 eel Se. :0..8.:Ci.,|) Sk ? Time. ey 3" Dry. | Wet. | Diff. force in |Prom poy clouded. Species of Clouds and Meteorological Remarks. 1h. | 107, at) be in. ° ° ° Ibs. | Ibs. | pt. |] pt. pt. pt. || 0—10. a i 1 7 || 29-987 || 47-2 |43-7 |3-5 | 0-0 | 0-0 | 28 10-0 || Very dark. 8 992 || 46-4 | 43-8 | 2-6 || 0-0 |0-0 | 28 10-0 Td. 9 993 || 47-0 | 43-5 | 3-5 || 0-0 | 0-0 10-0 Id. 10 999 || 46-4 | 43-6 | 2-8 || 0-0 | 0-0 10-0 || Cirro-stratous-seud ? clouds tending to break. 11 | 29-998 || 45-4 | 43-5 | 1-9 | 0-0 |0-0 10-0 || Homogeneous. 12 || 30-005 || 45-0 | 43-3 |1-7 || 0-0 |0-0 | 18 10-0 Id. 2 12) 30-116 || 48-0 | 44-0 | 4-0 | 0-1 |0-1 | 8 ||—: 8:—|| 10-0 | Cirro-stratous scud. 13 || 30-138 || 42-2 | 40-0 | 2-2 || 0-3 |0-1 | 17 10-0 || Seud. 14 128 || 42-8 | 39-7 |3-1 || 0-2 |0-1 | 16 10-0 Id. 15 124 || 42-3 |39-3 |3-0 || 0-4 |0-1 | 17 10-0 Id. 16 109 || 42-5 |39-0 |3-5 || 0-2 |0-2 | 18 10-0 Id. 17 103 || 41-8 | 39-3 |2-5 || 0-1 |0-1 | 18 10-0 Id. 18 099 ||41-5 | 38-9 |2-6 || 0-1 |0-1 | 18 10-0 Td. 19 098 || 41-6 | 38-9 | 2-7 || 0-2 |0-1 | 16 9-9 Id. 20 108 || 40-8 | 38-7 | 2-1 || 0-1 |0-0 | 18 |} —:19:—}| 10-0 |) Cirro-stratous scud. 21 120 || 41-4 |39-4 |2-0 ||0-0 |0-0 | 18 |} —:18:—]| 9-8 ie thick and flame-like cirri to SE. 22 || 125 ||42-7 |40-0 |2-7 ||0-1 |0-0 | 18 }—:18:—] 9-9 Tides; cirrous haze and cirro-strati. = 23 |) 125 || 43-5 |40-6 |2-9 || 0-2 |0-1 | 16 || —:19:— 9-8 ictirs id. = 30) 124 ||44-6 | 41-4 |3-2 0-1 |0-1 | 18 || —:20:—]) 7-0 ide cirri and cirrous haze. = 1 115 || 45-0 |42-0 | 3-0 ||0-1 |0-0 | 20 || —:21:— 9-8 Td}; id. 2 104 || 47-4 | 43-3 |}4-1 | 0-1 |0-0 | 20 || —:20:—]| 8-0 Id. ; id. 3 091 || 46-7 |42.5 |4-2 0-1 |0-0 | 20 || —:21:— 9.5 HG ke id. 4 088 || 44-8 | 41-2 |3-6 ||0-1 |0-0 | 18 || —:20:— 7-0 Id. ; id. 5 085 || 37-7 | 36-6 |1-1 || 0-0 |0-0 | 18 3-5 || Cirri and cirrous haze; patches of scud to W. 6 080 || 34-3 | 33-6 |0-7 ||0-0 |0-0 | 16 0-5 || Cirri and cirrous haze on horizon. 7 092 || 32-1 | 31-4 |0-7 || 0-1 |0-0 | 23 0-2 Id. 8 091 || 30-7 |30-5 |0-2 ||0-0 | 0-0 0-2 || Cirrous haze on horizon. 9 097 || 30-6 | 30-2 | 0-4 || 0-0 | 0-0 0-2 Id. 10 091 || 29-6 | 29-4 |0-2 || 0-0 | 0-0 0-2 Id. 11 068 || 29-7 | 29.3 | 0-4 || 0-0 | 0-0 0-0 || Clear; hoar-frost on the ground. 12 061 || 29-8 | 30-5 | --- || 0-0 | 0-0 0-0 Id. 13 || 30-050 || 28-0 | 27-9 | --- || 0-0 | 0-0 0-0 || Clear. 14 || 30-028 || 29-2 | 29-0 |0-2 || 0-0 | 0-0 0-0 Td. 15 || 30-012 || 27-1 | 27-1 | ... 0-0 | 0-0 0-0 Id. 16 || 29-997 || 28-0 | 27-4 |0-6 || 0-0 | 0-0 0-0 Id. 17 979 || 28-0 | 27-7 |0-3 || 0-0 |0-0 | 24 0-0 Id. 18 970 || 28-5 | 28-0 | 0-5 ||0-0 |0-0 | 22 0-0 Id. 19 960 || 29-5 | 29-3 | 0-2 || 0-1 | 0-0 | 26 0-7 || Cirro-strati and cirri on E. horizon. 20 953 || 28-4 | 27-6 |0-8 ||0-0 |0-0 | 22 0-7 || Cirri and cirrous haze on E. horizon. 21 949 || 29-0 | 28-6 | 0-4 | 0-0 |0-0 | 18 | 1-5 || Cirri and cirro-strati to SE. 22 942 || 31-7 |31-4 |0-3 | 0-0 |0-0 | 20 || —:—:20], 3-0 Woolly cirri and cirro-strati rad. from SW. and NE. C 23 925 || 34-4 | 32-4 |2-0 |0-0 | 0-0 | 28 | —:—: 20 4-0 Id. C 4 0 || 909 ||37-9 |37-1 |0-8 |/0-0 |0-0 | 26 | —:—:20], 40 Id. ; cirrous haze. G 1 || 886 || 39-8 |38-7 | 1-1 || 0-0 | 0-0 | 22 || —:—:20 4-0 Td. ; id. 2 || 853 |/45-3 | 40-0 |5-3 |, 0-1 |0-0 | 22 || —:—:20] 4.0 Id. ; id. ¢ 3 836 | 47-3 | 40-8 |6-5 | 0-2 |0-1 | 21 |, 2-0 Id. ; cir. haze on hor.@ 4 824 || 43-5 |39-7 |3-8 || 0-1 |0-0 | 18 | 0-2 Id. ; id. 5 810 || 39-1 | 35-3 |3-8 | 0-1 | 0-0 | 20 |, 0-2 Id. ; cirrous haze. 6 796 || 37-2 |32-9 |4-3 || 0-1 |0-0 | 18 || 0.2 Id. ; id. z 7 | 792 || 32-6 |30-:0 | 2-6 || 0-0 | 0-0 0-0 | Clear; haze on horizon? 2 ; 8 772 || 31-0 | 28-6 | 2-4 | 0-0 |0-0 | 17 0-0 Id. ; id. 9 761 || 29-0 |27-0 |2-0 ||0-0 |0-0 | 16 0-0 Id 10 || 741 |\ 31-9 | 28-7 |3-2 | 0-1 |0-0 | 14 0-0 Id. 11 708 || 35-8 |31-4 |4-4 |] 0-4 |0-4 | 17 | 0-0 Id.; very faint auroral light to NNW. , 12 680 ||38-0 |32-9 |5-1 || 1-2 11-0 | 17 | 0-0 Id.; aurora, 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. Th motions of the three strata of clouds, Sc. (scud), (.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Hovurty METEOROLOGICAL OBSERVATIONS, NOVEMBER 4—6, 1845. 251 a SST ii | TaerMomETEns. Wind. Clouds, poe Se. :C.-s.: Ci.,]| Sk 3 : prcellone te rams 1 moving lelaidud: Species of Clouds and Meteorological Remarks. 1, ) 10™, nee © i ? Ibs. } Ibs. pt. || pt. pt. pt. 0—10. 36-4 | 33-2 | 3-2 |} 0-9 |0-3 | 18 0-0 || Clear. 34-9 | 32-2 | 2-7 ||0-4 |0-1 | 19 0-0 Id. 35-5 | 32-4 |3-1 0-4 |0-1 | 24 0-0 Id. 34-2 | 31-0 | 3-2 |/0-1 |0-0 | 20 0-0 Id. 31-6 | 29-8 | 1-8 ||0-0 | 0-0 8 0-0 Td. 31-4 | 29-4 | 2-0 |10-0 | 0-0 0-0 Id. 31-9 | 30-2 | 1-7 ||0-1 | 0-1 | 18 0-0 Id.; fine red on EK. horizon. 35-5 | 32-7 |2:8 |/0-6 |0-5 | 16 0-0 Id. ; reddish on W. horizon. 34-5 |32-1 | 2-4 |10-3 |0-1 | 26 0-2 Id. ; cloud on S. horizon. (0) 37-6 | 34-4 |3.2 0-2 }0-0| 0 0-2 Id.; thin cirri and haze on horizon. (9) , 39-7 | 36-3 | 3-4 || 0-0 |0-0 | 16 0-2 Id. ; id. (0) 5 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. © 2 1 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.© 3 47-1 | 43-4 | 3-7 ||0-4 |0-1 | 14 0-8 Patches of loose cir.-str. ; cir.-cum.-str. ; cir. ; brownish atmospheric 4 44-4 | 41-5 |2.9 10-1 |0-0 | 12 || —:—:19]| 1-5 || Woolly and mottled cir. ; cir.-str. and haze. © ‘haze.© 5 42-6 | 40-3 | 2-3 110-1 |0-0 | 12 5-0 td: id. »)} —~C6 38-5 |37-5 | 1-0 || 0-0 | 0-0 | 30 1-0 || Cirro-strati and cirri. »)} f ae 36-8 | 36-1 | 0-7 ||0-0 | 0-0 0-5 || Patches of cirri; cir. haze; coloured lunar corona. ) 8 35-3 | 34-8 | 0-5 | 0-0 | 0-0 2-0 || Cirro-str., cir.-cum., and cirrous haze; lunar corona, } 9 36-6 | 35-9 | 0-7 || 0-0 |0-0 | 16 10-0 || Scud? the sky became overcast about 8" 30™. 10 41-4 | 40-5 | 0-9 ||0-5 |0.0 6 9-0 || Cirro-stratus and haze. ‘ie 42-9 |41-9 | 1-0 0-1 |0-1 | 22 10-0 Id. 43-6 | 42-6 | 1. 0-1 | 0-0 10-0 Id 45-4 | 44-1 | 1-3 |/0-0 |0-0 10-0 || Very dark 45-9 |44-9 | 1-0 0-1 |0-1 | 16 10-0 Id. 49-3 |47-9 | 1-4 |/0-3 | 0-0 8-5 || Clouds broken. 49-4 | 48-0 | 1-4 0-0 |0-1 | 18 9-8 || Scud. 51-7 | 49-7 | 2-0 |] 0-6 |0-2 | 16 10-0 Id. 51-8 | 50-0 | 1-8 || 0-4 |0-2 | 16 10-0 Id. 50-5 | 48-7 | 1-8 |}0-5 |0-2 | 16 || 18:—:— 3-0 Id.; cirro-strati. 49-6 | 48-0 | 1-6 |]}0-4 |0-3 | 16 || 20:—-:—|| 2-5 || Patches of scud; sheets of cir.-cum.-str.; cirri and haze. 50:3 |48-5 [1-8 10-5 |0-5 | 15 || —:16:— 5-0 || Loose cir.-cum.-str.; scud ; flame-like and linear cirri. © 51-4 | 49-5 | 1-9 |/0-5 |0-3 | 16 || 16:—:—]|| 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 || Seud; cirro-strati. (2) 56-0 | 52-4 |3-6 |} 0-8 |1-0 | 16 || 18:16:—|| 4-0 Id.; patches of cirro-strati and cirri. e 54-1 | 51-1 | 3-0 || 0-8 |0-5 | 14 5-0 || Scud near horizon ; cir.-cum.-str. and woolly cirri. © 56-1 | 52-3 | 3-8 10-9 |0-5 | 15 || —:16:— 4-0 || Cirro-cumulo-strati ; woolly cirri. (0) 54-0 | 50-9 | 3-1 1-5 |1-0 | 15 || —:15:—|| 3-5 |] Sheets of cirro-strati and cirro-cumulo-strati. 52-2 | 50-0 | 2-2 | 1-7 |0-9 | 14 ||} 14:15:—J| 3-0 |] Loose scud near horizon; cirro-cumulo-strati. 52-0 | 49-8 | 2-2 2-2 |1-2 | 14 || 14:15:—|| 7-5 || Patches ofscud; cir.-str.; cir.-cum.-str.; brown haze on 52-7 |50-5 | 2-2 1-1 |1-3 | 14 || —:14:—]| 8-5 || Cirro-cumnlo-strati and cirro-strati. }- [hor. }- 53-0 | 50-7 | 2-3 |] 1-3 | 1-5 | 15 9-8 Id. 52-8 | 50-3 | 2-5 |} 1-3 |0-4 | 13 10-0 || Scud and cirro-strati. 53-3 |50-2 | 3-1 1-2 | 1-2 | 12 9-9 Id. 52-4 149-8 | 2-6 |} 1-9 |1-8 | 14 10-0 Id.; cirrous mass. 51-2 |48-7 | 2-5 0-9 | 1-1 | 12 10-0 al id, 50-9 | 48-6 | 2-3 | 1-1 |0-1 | 12 10-0 || Very dark. 50-8 |48-5 | 2-3 //0-3 |0-2 | 7 | 10-0 || Very dark; a few drops of fine rain. 50-1 | 48-5 | 1-6 ||0-3 | 0-4 | 11 10-0. Id. ; 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 Id. ; dark. 50-5 | 49-2 | 1-3 || 1-3 |0-2 | 14 10-0 || Scud and cirro-strati ; clouds broken to 8. 51-2 | 49-5 | 1-7 |}0-6 | 0-2 | 14 9-8 Id. §2-3 |49-5 12-8 11-5 /1-5 | 18 ||19:18:—|| 8-5 || Loose scud; dense mass of wavy cirro-strati. e 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 ions of the three strata of clouds, Sc. (seud), O.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Nov. 547». Auroral arch 12° altitude to NNW. 252 Hovurty METEOROLOGICAL OBSERVATIONS, NOVEMBER 6—10, 1845. | THERMOMETERS. WIND. Gott. Baro- - — i Clouds, ry or Mean || METER | Maximum Rr Aha Hu a Species of Clouds and Meteorological Remarks. Time. |) at 32°. || Dry. | Wet. | Dift.|) force in [Prom peas clouded. 1», 10m, ah are ° © ll ips. | Ibs. | pt. || pt. pt. pt. |} o0—10. 3 21 | 29-047 | 49-0 | 46-0 | 3-0 | 2-0 | 1-7 | 18 || 19:—:14]) 4-0 || Patches of scud ; woolly and linear cirri. 5! 22 || 095 ||49-2 | 45-0 | 4-2 2.3 |0-9 | 18 | —:—:14 6-5 || Woolly and linear cir.; scud and cir.-str. round hor. @| 23 141 |51-3 |47-0 |4-3 | 1-3 |1-2 | 18 | 19:—:—]] 7-5 || Scud and loose cumuli; cirro-strati; cirri. >) 7 0 16) || 52-1 | 47-3 | 4-8 | 1-3 |0-9 | 16 |19:—:—] 6.5 Id. ; id. =) 1 || 170 || 51-5 | 46-6 | 4-9 | 1-3 |1-3 | 16 0-7 || Loose scud and cirro-strati round horizon. (0) 2 187 ||52-0 |46-9 |5-1 | 0-8 | 1-2 | 17 0-5 Td. (0) 3 | 203 | 49-8 | 45-2 |4-6 |]0-3 |0-1 | 15 | —:—:16]| 3-0 || Woolly cirri; cirro-strati; haze. } 4 || 191 ||49-8 |45-1 |4-7 0-3 |0-2 | 14 /16:—:16|} 9-0 || Scud; woolly cirri; cirro-strati ; haze. 5 | 178 |47-7 |45-6 | 2-1 0-4 |0-3 | 16 |—:16:—]) 9-0 | Cirro-stratus ; cirri and cirrous haze. 6 || 182 |}49-4 146-5 |2-9 | 2.1 |1-7 | 13 5.0 || Cirro-cumulo-stratus ; cirro-strati; cirrous haze. 7 186 || 50-2 | 47-4 |2-8 | 2-1 |1-0 | 14 9-8 || Thickening cir.-str. and cir. haze ; drops of rain. 8 || 179 ||50-1 |47-7 | 24 1-8 | 1-3 | 13 9-5 || Cirro-cumulo-strati; cirro-strati ; showers occasionally, 9 179 ||51-7 | 48-7 |3-0 || 3-2 | 2-7 | 14 10-0 || Patches of scud ; cirro-strati; cirrous haze. ) 10 || 205 || 51-1 | 49-2 |1-9 |3-7 | 2-3 | 16 10-0 || Dark; rain? ll 194 ||48-9 | 47-4 |1-5 ||0-9 |0-5 | 16 | 17:—:— 5-0 || Send; cirrous haze. 12 |) 175 | 49-3 |47-7 |1-6 | 2-2 |1-0 | 15 3-0 || Cirri and cirrous haze. 13 || 29-179 || 50-3 | 48-1 | 2-2 |} 1-8 |1-7 | 15 9-9 || Seud and cirro-strati. 14 188 | 49-9 | 48-0 |1-9 | 1-9 | 0-4 | 14 10-0 Id. 15 181 ||50-1 | 48-4 |1-7 | 0-5 |0-1 | 13 10-0 Id. 16 170 || 50-2 | 48-4 |1-8 | 0-3 | 0-2 | 13 10-0 Id. 17 165 || 50-3 |48-7 |1-6 || 0-4 | 0-2 | 18 10-0 || Drops of rain. j 18 157 || 50-6 | 48-7 | 1-9 | 1-2 |0-5 | 18 9-0 || Scud and cirro-strati. 19 159 | 50-2 | 48-6 | 1-6 || 1-0 |0-9 | 15 9-9 Id. {on horizon, 20 || 169 | 51-0 |49-1 |1-9 || 1-4 |0-7 | 16 || —:16:—|| 10-0 || Cix.-str. scud ; cir.-str.; homogeneous cir. mass; seud 21 179 || 51-7 | 49-8 | 1-9 | 0-8 |0-7 | 15 |} 16:—:—|| 10-0 || Scud; cirro-strati, &c., as before. 22 204 || 52-6 | 50-4 | 2-2 |, 1-1 |0-6 | 15 | 16:—:—|| 10-0 dis id. 23 205 || 53-4 |51-3 |2-1 0-6 |0-2 | 15 || 16:—:—|| 10-0 Id. ; id. 8 0 206 || 53-8 |51-8 |2-0 |0-3 | 0-1 | 15 | 16:—:—|} 10-0 divs id. 1 206 || 54-9 |51-9 |3-0 | 0-2 |0-2 | 15 117:—:—]| 10-0 Tdass id. ; drops of rain. 2 210 || 52-7 |51-5 |1-2 | 0-3 |0-1 | 17 || 18:—:—]| 10-0 Id. ; id. ; rain’? 3 213 | 52-3 |51-3 |1-0 | 0-0 |0-0 | 15 10-0 || Dense mass of undulated cirro-strati. 4 225 | 51-0 |49-9 |1-1 | 0-1 |0-0 | 17 || 20:—:—|| 10-0 || Loose seud; cirrous mass; rain”? F 241 || 49-9 | 49-3 |0-6 || 0-0 | 0-0 | 16 || 19:—:—|] 10-0 || Scud; dense cirro-stratus, 6 250 || 46-1 | 46-0 |0-1 || 0-0 | 0-0 4-0 || Scud and cirro-strati; stratus on the ground. 7 277 || 44-9 | 44-7 |0-2 | 0-0 | 0-0 9-5 || Cirro-cumulo-strati ; two bats seen. y 8 286 || 45-0 | 44-9 |0-1 || 0-0 |0-0 | 16 9-9 toss cirro-strati. ; 9 303 || 44-8 |44-5 |0-3 | 0-0 |0-0 | 2 9-8 Id. ; id. 7 10 304 || 43-8 |43-6 |0-2 | 0-0 | 0-0 | 24 9-8 Id. ; id.; stratus on the ground. j il 305 || 43-0 | 42-8 |0-2 || 0-0 |0-0 | 24 9-8 Te id.; mist on the ground. 12 302 || 44-0 | 43-8 |0-2 || 0-0 | 0-0 4 3-0 Id, ; woolly cirri ; id. | 3 Sunday—Cirro-strati ; cirri ; occasional sunshine ; 233||99.295 | 46-5 |46-0 |0-5 |0-0|0.0} | = | -- { eer eR 13 || 29-314 || 35-3 | 35-0 | 0-3 | 0-0 | 0-0 —-:16:—)|| 8-0 || Cirro-cumulo-strati; fog on the ground. 14 306 || 34-6 | 34-3 |0-3 || 0-0 | 0-0 6-5 GAR id. 15 292 || 36-0 | 35-6 | 0-4 | 0-0 | 0-0 | 17 10-0 Id. ; id. ; drops of rain. 16 282 || 37-6 | 37-3 |0-3 | 0-0 | 0-0 10-0 || Dark; clouds homogeneous. L|| 17 266 || 38-9 | 38-6 |0-3 | 0-0 | 0-0 10-0 Td. ; id. 18 261 || 39-1 |38-8 |0-3 | 0-0 | 0-0 10-0 ids: id. 19 249 | 39-9 | 39-6 |0-3 || 0-0 | 0-0 10-0 || Clouds homogeneous. 20 246 || 41-0 |40-7 |0-3 | 0-0 | 0-0 | 22 | 13:—:—|| 10-0 || Misty seud; cirrous mass; foggy. 21 235 | 42-2 |41-9 |0-3 | 0-0 | 0-0 13:—:—|| 10-0 || Scud; slight fog. 22 |) 225 || 43.4 | 43-2 |0-2 | 0-0 | 0-0 13:—:—|| 10.0 des id. 23 | 208 || 45-3 | 45-0 |0-3 | 0-0 | 0-0 14:—:— 9.9 || Send; cirro-strati; slight fog. 10 0 181 || 47-2 | 46-7 |0-5 || 0-0 | 0-0 9-9 Id. ; id. ; fog on horizon. 1 || 164 || 48-8 | 48-0 | 0-8 | 0-0 |0-0| 6 9:8 || Id; id. id. 2 |i 150 | 49-0 |48-1 | 0-9 | 0-1 | 0.0 4 |14:—:— 9-8 Tdi: Aas 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, The 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 at 32°. || Dry, | Wet. in. im e. 29-147 | 49-1 | 48-2 131 || 48-8 | 48-3 48:3 | 47-8 126 || 47-4 | 47-1 121 || 47-3 | 46.9 212 || 46-2 | 43.9 207 || 46-9 | 45-1 207 || 46-5 | 45.4 206 |) 45-7 | 44.7 222 || 43-6 | 43-1 226 ||42-5 | 42-1 233 || 40-4 | 40-1 239 || 38.7 | 38-3 244 |) 36-4 | 36-1 243 || 33-3 | 33-0 252 | 34-7 | 34.2 29-250 || 36-7 | 36-5 254 || 36-8 | 36-5 255 || 34-9 | 34-7 260 || 35-4 | 35-0 266 || 34-2 | 34-0 271 || 35-7 | 35-3 277 || 35-6 | 35-5 288 || 36-4 | 36-2 306 || 37-6 | 37-2 316 || 43-0 | 42-6 329 || 46-0 | 44-9 330 || 46-2 | 44-6 339 || 47-4 | 45-0 350 || 47-1 | 44-3 359 || 46-7 | 44.2 378 | 44-5 | 42-5 397 || 42-9 | 41-1 414 || 40-2 | 39-4 430 || 38-2 | 37-8 442 || 35-8 | 35-5 454 || 36-2 | 36-0 482 | 34-4 | 34.0 THERMOMETERS. Diff. SCOR RF Ree Clouds, Se.:C.-s.:Ci.,]) Sky r ; moving __|jclouded. Species of Clouds and Meteorological Remarks. from pt. pt. pt. 0—10. 5:14:—}| 9-8 || Misty scud ; cirro-strati; fog on horizon. C°) 5:—:—| 9-6 Id. ; id. ; id. —: 6:—|| 9-5 || Cirro-cumulo-strati ; cirro-strati. 10-0 Id. ? drops of rain. 10-0 Id. 10-0 Td. ; rain! 10-0 Id. —:15:—|| 8-0 || Thin cirro-cumulo-strati; fog on the ground. } —:14:—|| 9-5 || Cirro-cumulo-strati; stratus in the valleys. > 9-9 || Send; cirro-cumulo-strati. 10-0 || Scud; cirro-cumulo-strati. 10-0 Td. ; id. ; nearly homogeneous. 9.9 Id. ; id 9-7 Id. ; id. 8-0 GiB id. 0-5 || Masses of scud. 0-5 || Cirro-cumulo-strati on E. horizon. 14:10:—|| 5-0 || Loose misty seud ; cirro-cumulo-strati. 1-0 || Cirro-strati on horizon. 10} 1-0 || Cirro-strati and cirrous haze. 0} —:—:13) 2-0 || Thick woolly cirri; cirro-strati; stratus on horizon. © 13:13:—|| 1-0 || Loose cumulo-stratus and cirro-cumulo-stratus ; haze or 13:13:—|| 4-0 || As before. (0) [stratus ? on hor. © 12:—:—}]| 9-5 || Scud; cumulo-strati ; cirro-strati. 10, 12:13:— 9-5 Misty scud on hor.; cir.-str. seud; cum.-str.; cir.-cum-str.; foggy- 11:—:—|| 10-0 || Seud; cirro-strati, &c., as before. —:12:—j] 7-5 || Cir.-cum.-str. ; cir.-str.; cum.-str.; cir.-str. ; cir. haze. 9-0 || As before. 9-8 || Cirro-stratous scud ; cirro-cumulo-strati. 0-5 || Cirro-cumulo-strati; slight fog on the ground. y 9-5 Ids: id. ; col. lun. cor. }- 1-0 Patches of cir.-str. ; rather thick fog, causing a colourless lun. cor. ») —: 8:—|| 2-5 || Cirro-cumulo-strati; dense fog ; lunar corona. y 8:—:—] 10-0 || Misty scud ; fog clearing off. 10-0 Thick mass. {lunar corona. } —: 4:— 6-0 Cir.-cum.-str. ; woolly cirri; stratus on hor.; mist on the ground ; 4:—:—|| 9-0 || Misty seud; dense fog. a —: 3:—| 9-0 || Cirro-cumulo-strati; foggy. } 9-5 || Seud ; dense mist. 3-0 || Id.; woolly cirri. 3-0 || Id.; bands of cirri stretching from N by E. toS by W. 4:—:— 6-0 Id. 3 cirri. [like cirri, 3:—:20 1-8 || Loose seudand cum., with cum.-str. on hor. ; woolly, linear, and flame- 1:—:—| 9-7 || Seud and loose cumuli; cirro-strati and cirri. (3) 1:—:—] 9-8 Id. 0: —:—|| 2:5 Id. ; patches of cir.-cum.-str. ; cirri. Oi) 25 Id. ; id. 0:—:— 9-5 || Loose cumuli; cirro-stratous scud; cirro-cum.-str. © 03 —:— || W5 Td. ; id.; patches of cirri. 31:—:—]| 2:5 Td. ; id. 0:—:—| 5-0 Td. ; id. y 0-2 || Cirro-cumulo-strati and cirro-strati. ») 0-2 || Cirro-strati and haze. »)) 0-2 Id. »)) 2-0 || Cirro-cumulo-strati to SE. ; lunar corona. >} —:'2;:—|| -1-0 Id. ; haze on horizon. } —- ‘MAG. AND MET. oBs. 1845, ito 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), (.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 35 13 CaOnoaourhrwnro 23 coy 8ssfwwe oO 29-689 671 658 631 618 Hourty METEOROLOGICAL OBSERVATIONS, NOVEMBER 12—14, 1845. THERMOMETERS. WIND. Maximum Dry. | Wet. | Diff. force in |Prom 1s,,; 10™ ° 2 Ibs. lbs. pt. 34-1 |33-8./0-3 || 0-0 | 0-0 | 18 32-7 | 32-6 | 0-1 || 0-1 |0-0 | 16 31-8 | 31-5 | 0-3 || 0-0 |0-0 | 16 33-7 | 33-3 | 0-4 || 0-0 | 0-0 | 18 34-8 | 34-4 | 0-4 | 0-1 |0-0 | 18 34-8 | 34-4 | 0-4 || 0-0 |0-0 | 18 35-8 | 35-4 | 0-4 || 0-0 |0-0 | 18 37-4 | 36-7 |0-7 || 0-0 | 0-0 | 18 34.8 | 34-5 | 0-3 ||0-0 | 0-0 | 16 34-4 | 34-0 | 0-4 || 0-0 | 0-0 | 18 32-4 | 32-2 | 0-2 ||0-0 | 0-0 | 20 34-9 | 34-7 | 0-2 ||0-0 | 0-0 | 16 37-0 | 36-7 | 0-3 || 0-0 | 0-0 | 28 40-8 | 39-8 | 1-0 || 0-0 | 0-0 | 15 45-2 | 43-0 | 2-2 || 0-1 | 0-0 6 46-0 | 43-4 | 2-6 || 0-2 |0-2.| 30 45-4 | 42-8 | 2-6 || 0-2 | 0-1 0 44-7 | 42-3 | 2-4 0-1 | 0-1 | 31 43-7 |41-8 | 1-9 || 0-1 | 0-1 0 42-6 | 40-8 | 1-8 || 0-0 | 0-0 0 42-2 | 39-9 | 2-3 || 0-0 | 0.0 1 40-7 | 39-0 | 1-7 || 0-0 | 0-0 | 22 41-3 | 39-2 | 2-1 ||0-0 | 0-0 | 18 40-1 | 38-6 | 1-5 ||}0-0 | 0-0 | 26 39-0 | 38-1./0-9 || 0-0 | 0-0 38-8 | 38-0 |0-8 || 0-0 | 0-0 | 18 38-2 | 37-4 | 0-8 || 0-0 | 0-0 36-4 | 36-0 | 0-4 || 0-0 | 0-0 8 33-2 | 33-0 |0-2 || 0-1 | 0-1 | 18 30-9 | 30-4 | 0-5 || 0-0 | 0-0 | 16 28-6 | 28-4 | 0-2 || 0-0 | 0-0 29-8 | 29-7 | 0-1 ||0-0 | 0-0 | 28 31-0 | 30-8 | 0-2 || 0-0 | 0-0 | 14 31-3 | 30-6 |0-7 || 0-0 | 0-0 | 24 31-8 | 31-3 |0-5 || 0-0 | 0-0 32-2 |31-6 | 0-6 || 0-0 | 0-0 | 28 35-4 | 35-0 | 0-4 || 0-1 | 0-0 | 24 37-2 |36-7 |0-5 || 0-1 | 0-0 | 17 39-6 | 38-6 | 1-0 || 0-0 | 0-0 41-3 | 40-2 | 1-1 ||0-0 |0-0 | 28 42-2 | 40-8 | 1-4 || 0-1 | 0-0 8 41-3 | 39-9 | 1-4 || 0-0 | 0-0 40-3 | 39-4 | 0-9 || 0-1 | 0-0 4 39-3 | 38-5 | 0-8 || 0-0 | 0:0 | 34.4 | 34.2 | 0-2 || 0-0 | 0-0 35-0 | 34.8 | 0-2 || 0-@ | 0-0 6 35-2 | 34-9 | 0-3 || 0-0 | 0-0 36-3 {35-9 | 0-4 || 0-0 | 0-0 35-2 | 34-8 | 0-4 ||0-0 | 0-0 | 16 34-0 | 33-8 | 0-2 || 0-0 |0-0 | 23 32-5 | 32-2 |0-3 | 0-0 |0-0 | 18 31-8 | 31-6 | 0-2 ||0-0 |0-0 | 18 29-7 | 29-5 | 0-2 || 0-0 | 0-0 | 20 28-7 | 28-8 | --- ||0-0 |0-0 | 18 30-5 | 30-1 |0-4 || 0-0 | 0-0 | 18 Clouds, Se. : C.-s.:Ci., moving from pt. pt. pt. coooce —:19:— Sky clouded. Species of Clouds and Meteorological Remarks. Sky milky ; faintly coloured lunar corona. ‘¥ Sky milky; streaks of cir.-str. to N.; faintly coloured lunar cor. J Thin cirro-cumulo-stratus ; lunar corona. Id. ; faint lunar corona. 5) Id. ») Cirro-cumulo-stratus. Id. Id. Id. Id. ; bank of cirro-strati to E. Td. ; wild ducks flying west. Id. Td. ; eirro-strati. Cir.-cum.-str. ; scud and loose cum. to W. ; cir.-str. G Scud and loose cumuli ; cirro-strati ; haze on horizon. Id. ; id. ; id. Scud ; dense mass of cirro-stratus. Id.; id. Id.; cumulo-strati. Thick cirro-cumulo-strati. Td. Id.; a few drops of fine rain. Id. Id. Td. Td. Thick cirro-cumulo-strati ; moon eclipsed. Loose cirro-cumulo-strati. Cirro-cumulo-strati on horizon. Id. ; patches of eirri. Cirro-cumuli and cirro-strati. Cirro-cumulo-strati. Id. Id. Id. ; woolly cirri. (cir. haze on ho: Woolly cir. rad. from NNW. ; cir.-cum.-str. ; cir.-str.; cum,-str. | Woolly cirri; cirro-cum.-str. ; cir. haze ; solar halo Cirro-cumulo-strati ; woolly cirri ; cirrous haze. Td. ; cir.-cum. ; thin cir.-strati ; cirri and cirrous haze. As before. [s) [str. to E. ; cir.-str. ; cir Cir.-cum.-str., with ragged and mottled cir. scud forming beneath Nearly as before ; clouds rather denser. Id. ; foggy to E. Cirro-cumulo-strati ; cirro-strati. 4 Loose cirro-cumulo-strati; slight fog on the ground. ] Td. ; id. +} Id. Cirro-cumulo-strati. Td. ; haze. Id. 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.=8,8.= 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. | Gott. || Baro- ] Mean || METER | Time. | at 32°. if \ = a bh. in. }14 18 | 29.609 tie, 19 593 \} 20 | 573 We 21 568 IP 22 554 23 | 525 0 516 Bl 497 2 471 3 438 4 414 5 408 6 411 a7 390 —~8 391 9 391 10 395 ll 392 29-390 4, 28-978 803 28-768 751 753 758 754 769 799 829 854 884 921 933 945 969 991 28-978 29-028 050 071 083 094 087 i wo 047 955 915 887 851 789 Noy. 174 0. 069: Hovurty METEOROLOGICAL OBSERVATIONS, NovEMBER 14—17, 1845. 255 THERMOMETERS. WIND. Clouds, Maximum Se.:C.-s.:Ci.,|| Sky : A esi eeelere oo ae moving elouded. Species of Clouds and Meteorological Remarks. 1, | 10", ea + - 3 lbs. | Ibs. | pt. pt. pt. pt. || O—10. 30-5 |30-6 | --- || 0-1 |0-0 | 31 || —:19:— || 5-0 || Cirro-cumulo-strati to W.; cirro-strati and haze. _)) 31-2 | 30-7 | 0-5 || 0-0 | 0-0 9-7 || Cirro-cumulo-strati; cirro-strati. 32-6 | 31-5 | 1-1 || 0-0 |0-0 4 9-7 Id. ; id. ; slight fog. 35-3 |34-3 /1-0 ||0-1 |0-3 | 18 ||} —: 20:— 7-0 Td; id. (0) 35-3 | 35-0 | 0-3 || 0-1 |0-0 | 30 3-5 Id. ; id. 38-7 |37-7 |1-0 ||0-2 |0-3 | 16 |}—:18:—]| 4-0 Id.; id (>) 42-3 | 40-6 | 1-7 || 1-1 |} 0-4 | 18 || —:18:— 9-7 Tdi ; id S 44.3 |42-4 11-9 || 0-6 |0-2 | 17 || 18:—:—J|| 10-0 || Scud; dense cirro-stratus and haze. 45-8 | 43-4 | 2.4 ||0-7 |0-7 | 18 || 18:20:—|| 10-0 || Patches of scud; cirro-stratus. 46-7 |44-0 |2.7 || 1-6 |0-7 | 18 |} 18:19:— || 10-0 || Scud; dense cirro-stratus. 46-0 | 44-0 | 2-0 ||0-9'}0-8 | 17 || 19:—:—)|| 9-8 || Loose scud; cirro-strati; rain”? 45-6 |44-0 | 1-6 || 0-6 |0-2 | 16 || 17:—:—|| 10-0 || Thick seud; cirro-strati; rain? 46-1 | 44-6 | 1-5 ||0-3.|0:5 | 17 9-9 Id. 46-4 |44-6 | 1-8 ||0-9:|0-9 | 18 9-0 Id. ; cirro-strati. } 47-2 | 45-4 | 1-8 || 1-8 | 0-9 | 17 9-8 Id. ; id. 46-7 | 45-2 | 1-5 ||0-9 |0-8 | 18 9-9 Id. ; id. 47-2 | 46-5 |0-7 || 0-9 |0-8 | 18 10-0 Id. ; id.; slight drizzle. 46-9 | 45-9 | 1-0 || 0-4 |0-1 | 18 10-0 Id. ; id. ; id. 46-9 | 45-9 | 1-0 || 0-2 |0-2 | 18 10-0 Ty id. 47-3 |46-8 |0-5 ||0-3 |0-0 | 9 || —:16:—|| 10-0 || Scud; cir. mass; rain'. Sunday—Overcast, nearly as at 50-3 | 48-7 | 1-6 || 2-9 |1-5 | 10 || 15:—:—]| 10-0 || Scud; cirrous mass, [25 throughout the day. 43-9 | 42-2 | 1-7 || 3-1 |0-4 | 17 10-0 || Seud. [corona ; cir.-cum. to S. }- 42-4 | 40-8 | 1-6 | 1-2 | 1-3 | 17 || 18:—:— 6-5 || Loose scud, moving rapidly & producing a coloured lunar 41-7 | 40-1 | 1-6 |} 1-3 |0-5 | 18 || 21:—:—|| 9-7 |) Loose cirro-stratous scud; coloured lunar corona. } 42-7 | 41-1 | 1-6 || 0-7 |0-8 | 18 || 21:—:— 8-0 || Scud; cirro-strati. } 42-3 |40-6 | 1-7 ||0-7 |0-4 | 19 | 21:—:—]| 9-8 Id.; id. ; lunar corona, y 42.5 |40-8 | 1-7 ||0-6 |0-2 | 19 10-0 Id. ; id. 42.7 | 41-0 | 1-7 || 0-4 }0-1 | 19 10-0 Id. ; id. at 10™; rain”? 42.4 140-9 | 1-5 || 0-2 |0-1 | 20 || 26:—:—|| 10-0 || Loose seud; dense mass of cirro-stratus. 43-2 | 41-1 | 2-1 ||0-4 |0-3 | 22 10-0 || Dense mass of cirro-stratus. 43-7 | 41-2 | 2-5 ||0-5 |0-4 | 22 | 26:—:—|| 9-5 |) Scud; sheets of cirro-strati; sky looking wild. 45-0 | 41-8 | 3-2 || 0-4 | 1-0 | 26 ||28:—:—|| 9-5 || Patches of scud; cirro-stratous scud ; cirro-strati. 45-3 | 41-5 | 3-8 || 0-8 |0-4 | 27 || 28:29:28 5-0 Id. ; woolly cirro-strati; sheets of cir.-str. 46-3 | 42-0 | 4.3 || 2-4 | 2.2 | 27 || 28:29:— 8-5 || Scud; id. ; id, 46-2 | 41-7 | 4-5 || 1-6 |0-9 | 24 || —-:28:—|| 9-5 || Cirro-stratous scud ; sheets of cirro-strati. 46-5 | 41-5 |5-0 || 1-1 | 0-7 | 22 || —: 28:— 9-8 Id. ; id. 46-4 | 41-8 | 4-6 | 0-7 | 1-0 | 24 || —:29:—|| 9.9 Id. ; dense mass of wavy cirro-strati. 44-8 | 40-4 | 4.4 || 1-9 |0-7 | 23 2-0 || Sheets of cirro-strati ; thin cirri to W. 43-7 | 39-6 | 4-1 || 1-6 | 1-2 | 23 0:5 || Scud and cirro-strati on horizon. 42-0 | 38-2 | 3-8 || 1-9 | 1-1 | 22 0-5 || Cirro-strati on horizon; aurora. 41-0 | 37-3 | 3-7 || 1-0 |0-4 | 21 0-2 || Patch of cir.-str. to NE.; auroral arch 12° altitude. ) 38-4 | 35-5 | 2-9 || 0-5 | 0-2 | 20 0-5 || Woolly cirri scattered over the sky; faint aurora. ) 39-0 | 36-0 | 3-0 || 0-2 | 0-2 | 20 0-2 || Streaks of cirrus; aurora occasionally. 39-4 | 36-7 | 2-7 || 0-8 | 0-2 | 20 1-5 || Band of woolly cirri lying from NW. to SE.; faint 38-7 |36-8 | 1-9 | 0-7 |0-2 | 18 1-0 || Streaks of cirri. d {auroral light. )) *| 38-0 | 36-3 | 1-7 || 0-3 |0-4 | 17 2-0 || Streaks of cirri lying from E. to W. ») 37-0 | 35-8 | 1-2 || 0-4 |0-2 | 26 7-0 || Cirri and cirrous haze ; lunar halo. ») 34-3 | 33-8 10-5 || 0-0 |0-0 | 28 9-5 Sky nearly covered with cir. haze ; faint lunar halo ; large lun. cor. )) 35-0 | 34-3 | 0-7 || 0-0 |0-0 | 12 10-0 || Dense cirrous mas. ) 35-3 | 34-7 |0-6 || 0-0 | 0-0 | 10 10-0 || Scud; slight drizzle. y 36-3 | 35-9 |0-4 0-0 |0-0 | 2 10-0 Id.; rain” 36-9 | 36-5 | 0-4 || 0-0 | 0-0 4 10-0 || Rain! 37-3 | 36-9 | 0-4 || 0-0 | 0-0 2 10-0 || Rain? [visible two miles off to E. 38-1 | 37-8 |0-3 ||0-1 |0:0 | 4 ||11:—:—/|| 10-0 || Patches of secud; dense cir. mass; rain”®; objects in- 39-0 | 38-6 | 0-4 ||0-0 |0-0 17:—:—! 10-0 || Loose seud in patches; dense 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. The motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Woolly cirro-strati moving quickest, and as it approaches the sun, exhibiting a beautifully coloured corona of two pinkish bands, with a light blue between, somewhat like diffraction spectra. 256 Gott. Baro- Mean METER Time at 32°. d. h. in. 17 23 || 28-773 18 0 763 1 755 2 756 3 772 4 797 5 823 6|| 849 vf 852 8 858 9 857 10 859 ll 878 12 851 13 || 28-817 14 754 15 698 16 608 17 533 18 461 19 434 20 413 21 414 22 425 23|) 437 19 0} 436 1 403 2 387 3 381 4 384 5 381 6 367 7 350 8 340 9 325 10 308 11 273 12 253 13 || 28-239 14 244 15 287 16 331 17 354 18 395 19 424 20 451 21 502 22 534 23 566 20 0 595 1 611 2 636 3 652 4 685 5 713 6! 729 | Hovurty METEOROLOGICAL OBSERVATIONS, NOVEMBER 17—20, 1845. THERMOMETERS, WIND. Maximum Dry. | Wet. | Dir. | force in | Prom 14, ;10™, | s 2. a lbs. | lbs. | pt 40-7 | 40-2 |0-5 | 0-0 | 0-0 41-7 | 41-1 |0-6 |0-0 |0-0 | 18 44-0 | 43-2 |0-8 | 0-0 |0-0 | 18 45-5 | 44.2 |1.3 0-9 |0-5 | 18 47-5 | 46-0 | 1-5 | 2-0 |0-6 | 19 47-6 | 45.4 |2-2 1-8 |1-3 | 22 47-6 |44-8 |2-8 |1-6 |1-0 | 20 47-1 |43-8 |3-3 | 1-1 |0-8 | 20 45-7 | 44-0 | 1-7 | 1-0 |0-9 | 19 47-0 | 45-2 | 1-8 | 1-2 | 1-2 | 19 47-2 |45-6 | 1-6 | 1-7 | 1-3 | 20 45-8 |43-9 | 1-9 || 2-3 |1-2 | 20 45-7 |44-1 |1-6 || 1-9 |0-3 | 18 47-8 | 45-6 | 2-2 || 0-8 |0-4 | 19 48-0 | 46-3 | 1-7 ||0-9 |0-1 | 18 47-8 |45-7 | 2-1 || 0-4 |0-6 | 18 48-0 | 45-4 | 2-6 || 1-4 | 0-2 | 18 48-9 |46-6 | 2.3 |/0-9 | 1-4 | 17 48-6 | 47-0 |1-6 |} 1-8 |2-1 | 17 50-0 | 48-6 | 1-4 ||1-9 | 1-1 | 17 49-8 | 49-0 |0.8 ||2-5 |2-5 | 18 48-8 | 48-2 |0.6 || 1-8 |0-8 | 17 48-4 | 47-6 | 0.8 || 2-0 |0-9 | 20 47-9 | 46-2 | 1-7 || 1-2 |1-2 | 20 48-7 |46-2 | 2.5 || 2-1 |1-0 | 20 48.2 | 45-8 | 2.4 ||2-5 |2-0 | 18 50-0 | 46-1 |3.9 | 3-5 | 2-0 | 18 49-0 | 44-7 | 4.3 || 3-8 [2-8 | 17 47-9 | 44-3 | 3.6 || 3-3 | 2-7 | 20 46-9 | 43-4 |3.5 || 4-2 |3-1 | 18 46-7 | 43-7 | 3.0 || 3-6 |1-0 | 18 47-0 | 44-6 | 2.4 ||4-2 |3-6 | 17 46-6 |44.0 |2.6 || 3-8 | 1-2 | 18 46-4 | 44-6 |1.8 13-7 |1-3 | 18 46-7 |44-6 |2.1 || 4-0 |3-6 | 18 46-4 | 44-7 | 1.7 ||4-1 |2-0 | 18 46-0 | 44-0 | 2.0 || 4-3 |3-9 | 18 45-9 |44-3 |1.6 ||3-1 |1-5 | 19 46-1 | 44-0 |2-1 || 2-2 |1-4 | 19 46-2 |44-6 | 1-6 || 1-9 |0-7 | 20 45-7 | 43-2 |2.5 ||3-3 |0-7 | 19 45-7 | 43-6 |2-1 || 2-1 |1-9 | 20 45-3 | 43-0 | 2.3 || 2-6 |1-3 | 18 44-6 | 43-0 | 1-6 ||2-7 | 1-8 | 20 43-9 | 41-6 | 2.3 || 2.2 | 1-7 | 20 42-9 | 40-3 |2.6 || 2-2 |1-5 | 20 42-6 | 40-8 |1-8 || 1-0 |0-1 | 18 43-8 |41-7 | 2.1 || 0-4 |0-3 | 18 46-3 |43-8 |2.5 ||0-9 |1-5 | 21 45-7 | 42-2 |3-5 | 1-5 |0-7 | 20 47-6 | 43-3 | 4.3 || 2-3 |1-0 | 20 47-1 |43-1 | 4.0 |} 1-3 |1-0 | 20 45-3 |42-6 |2-7 || 1-6 |1-6 | 20 42-5 |41-2 |1-3 || 1-7 |0-4 | 20 41-9 | 39-4 |2-5 || 1-3 |0-6 | 20 40-9 | 38-8 |2.1 10-5 |0-8 | 20 Se.: C.-s. :Ci., Clouds, moving The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, BE. = 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. from pt. pt. Sky clouded. || Dense, nearly homogeneous, mass of cir.-str. ; Scotch mist] — || Scud ; thick woolly cir.-str. ; woolly cir.-cum. ; nimbi. | Species of Clouds and Meteorological Remarks. As before. Seud ; dense cirro-stratus. Thick seud. ; Seud ; cirro-strati; portion of a rainbow. Id.; woolly cirri. Id.; cirro-strati. Id. ; id. Tass id. round horizon. Id.; dark. Clouds on horizon. ») Id. »)) Thin cirro-cumulo-stratus. y Scud and thin cirro-stratus. >} Scud and dense cirro-stratus. Td. d Td. ; rain?’ Seud ; cirro-stratus ; drops of fine rain. Td? ada id. yt IGS id. ; rain! d] Tass id. ; rain®—* Nearly homogeneous ; rain! Cirro-stratus ; masses of scud ; sky to W. Scud and loose cumuli. Id. ; cirro-strati. Loose scud ; loose cumuli; cirro-strati; cirri. (=) Id. ; thick woolly cirro-stratus. = As before, with nimbi; rain to S.; sky wild-like, Loose cumuli; cumuli; cirri-strati ; woolly cirri. Scud ; cirro-stratus ; cirri; sky looking wild. 1) a Id. ; id. ; rain”®—1 ny Id. ; id. ; cirrous haze ; stars dim. Dark ; rain” Id.; rain?~® at intervals. ; Seud ; cirrous haze? rain! at intervals. Ma | Loose scud ; shower” ) Seud ; cirro-strati. YT Seud ; cirro-strati. DI Id. ; id. ; drops of rain. Id. Id. > Td. Send ; cir. and cir, haze ; drops of rain; lunar corona. Td. ; id. Dense masses of scud to S. and SE. ; thin loose cir.-str. ; Scud ; cirro-strati. [cirri ; faint lunar corona, ) } Cirro-stratous seud; sheets of cirro-strati ; woolly cirri. Id. ; cirro-strati ; id. Scud and cirro-stratous scud ; cirri. (a 1GE thin cirro-strati; cirri. | | As before. [from NNE. and SSW. | Thin seud ; loose-edged cum. to S. ; woolly cir. radiating | | Scud and dark cumuli; woolly cirri; cirro-strati. | Seud ; cumuli; nimbi and cirro-strati on horizon. Scud near horizon. Gott. || Baro- METER at 32°. ie in. 28-763 777 809 850 868 897 28-926 951 959 963 985 28-996 29-018 054 071 083 108 251 252 270 270 289 307 318 325 329 344 346 355 374 397 417 435 456 473 492 515 29-662 Howurty METEOROLOGICAL OBSERVATIONS, NOVEMBER 20—22, 1845. 257 i] THERMOMETERS. WIND. Maximum Dry. | Wet. force in 14, | 107. FE £ lbs. | Ibs. 39-9 | 37-9 0-7 | 0-3 40-7 | 38-3 0-8 | 0-6 41-1 | 38-6 0-7 | 0-5 39-8 | 37-7 0-3 | 0-3 40:5 | 38-2 1-2 | 1-1 40-0 | 37-8 1-8 | 1-0 39-9 | 37-7 1-1 | 0-4 38-7 | 37-2 1-5 | 0.4 37-6 | 36-0 0-5 | 0-4 39-0 | 37-3 1-2 |0-8 38-7 | 36.9 0-2 | 0-1 38-9 | 37-0 0-2 | 0-2 38-7 | 36-8 0-4 | 0-3 37-0 | 35-7 0-6 | 0-1 37-5 | 36-2 0-3 | 0-6 39-4 | 37-8 0-6 | 0-8 40-7 | 38-4 0-4 |0-2 41-3 | 39.3 0-5 | 0-2 42-6 | 40-1 0-4 | 0-2 43-1 | 40-6 0:7 [0-3 44-2 | 40-7 0-7 | 0-1 39-6 | 37-9 | 1- 0-2 | 0-0 36-0 | 35-0 |1-0 || 0-1 | 0-0 35-2 |34-0 |1-2 || 0-1 |0-1 34-2 | 32-8 |1-4 || 0-1 | 0-1 34-7 | 33-3 | 1-4 || 0-1 | 0-2 33-7 | 32-5 | 1-2 ||0-2 | 0-1 33-9 | 32-8 | 1-1 ||0-1 | 0-1 33-3 | 32-2 | 1-1 || 0-3 | 0-1 34-3 | 32-8 |1-5 || 0-3 | 0-2 31-9 | 30-9 0-3 | 0-0 29-6 | 29-0 0-1 |0-1 32-0 | 31-0 0-2 | 0-3 30-6 | 30-0 0-3 | 0-0 32-8 | 31-8 0-2 | 0-1 31-2 | 30-5 0-1 | 0-1 31:5 | 30-6 0-1 | 0-1 33-3 | 32-1 0-2 | 0-1 32-4 | 31-6 0-2 | 0-1 33-0 | 32-2 0-1 | 0-2 36-6 | 35-2 0-2 | 0-1 39-3 | 36-7 0-3 | 0-1 40-7 | 37-7 0-2 |0-1 41-3 | 38-3 0-3 | 0-1 41-4 | 38-0 | 3- 0-2 | 0-2 39-7 | 37-0 | 2-7 | 0-3 | 0-1 37-5 | 35-7 |1-8 || 0-1 | 0-1 35-0 | 33-6 |1-4 || 0-1 | 0-0 36-2 | 34-3 |1-9 || 0-1 | 0-0 37-9 | 35-7 | 2-2 || 0-2 | 0-2 38-5 | 36-2 | 2-3 || 0-2 | 0-1 38-0 | 35-9 | 2-1 || 0-1 |0-1 36-8 | 35-0 | 1-8 || 0-1 | 0-1 35-5 |33-7 |1-8 || 0-1 |0-0 34-6 |32-0 | 2-6 || 0-4 |0-0 Clouds, pee toa Species of Clouds and Meteorological Remarks. from pt. pt. pt. 0—10. 0-5 || Seud near horizon. 6-0 || Thin seud. 5-0 Id.; a vivid glare of lightning seen. 3-0 Id. 2-0 || Cirro-strati on horizon. >} 0-5 || Thin seud and cirro-strati. y 3-0 || Thin scud and cirro-strati; lunar corona. y 2-5 || Cirro-strati and woolly cirri; id. ») 24:—:—|| 3-0 || Thin seud; thick woolly cirri; id. } 24:—:— 2-5 Id. ; id. ; coloured lunar corona. }- 6-0 || Thick woolly cirri; cirro-strati; lunar halo and cor. } 6-0 || As before. } {halo and corona. }- 3-0 || Cir.-str. on hor.: thin haze over the sky; faint lunar 4-0 Cirro-strati, cirri, and cir. haze ; masses of scud : clouds red to SE. )) eG 9-5 Cirri and thin cirro-strati dispersed across the sky ; scud on hor. } —:20:— 9-8 Cirro-strati and haze becoming thicker; a few patches of scud. 10-0 Id. —:20:—|| 9-8 || Cirro-strati; cirrous haze; cirro-cumulo-strati. 24:20:— 9-8 || Masses of scud ; cirro-strati; woolly cirri. (s) 9-0 Id. ; ads5 id, (s) 25:—:— 2-5 || Patches of seud ; woolly cirri. (0) 25:—:— 1:0 Id. ; id; cirro-strati. (0) 1-5 || Scud and cirro-strati on horizon. 0-5 Id. 0-2 Id. 0-2 || Clear; haze on horizon. 0-0 Id. 0-0 Id. 0-2 || Streaks of cirro-stratus to N. 0-2 Id. »)) 0-2 || Streaks of cirro-stratus to N. ») 0-2 Id. to NE and SE. ») 0-8 || Cirro-stratus ; cirri. y 0-8 Id. ; id. y 0-8 || Cirri to S. ») 0-5 Id.; very clear throughout the night. »)) 0-5 || Thin seud, cirri, cir.-str., and patches of scud on hor. ) 0-7 || Cirri, cirro-strati, and patches of scud on hor. »)) 1-0 Id., id., id. 0} 1-7 Id., id., id. (0) 2-5 Td., id., id. ; scud on Cheviot.© 3-0 Id., id., id. (0) 1-0 || Thick woolly cirri; cirrous haze; scud on Cheviot. © 2-0 Id. ; id.; cir.-str.; id. © — at 4 0 Tots id. ; id. ; id. (0) 5-0 Id. ; id. ; id.; cum.-str. (0) 1-0 || Cirro-strati, cirri, and cirrous haze on horizon. 1-5 Id., id., id. 9-5 Id., id., id. 10-0 || Cirro-stratus ? 10-0 Id. 10-0 || Thin cirro-stratus ; a few stars dimly visible. 4-0 || Thin cirro-stratus and cirrous haze. 1-5 |) Cirro-strati. 1-0 Sheets of cirri and cirro-strati; a slight covering of snow on Cheyiot. Observation made at 21 5m, e 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 ns erie three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 21h, 258 Hovurty METEOROLOGICAL OBSERVATIONS, NOVEMBER 23—25, 1845. THERMOMETERS, WIND. Clouds Gott. || Baro- - Se.:Cr8.: Ci.,|| Sk Mean || METER Maximum eee? 1 a a Species of Clouds and Meteorological Remarks. Time. || at 32°. || Dry. | Wet. | Diff. force in |yom rata eee | 14, ;10™. d. h. in. I e | ° lbs. lbs. pt. pt. pt. pt. 0—10. 23 13 || 29-718 || 35-2 | 34-7 |0-5 | 0-6 | 0-6 | 30 10-0 || Seud; rain”? 14 | 750 || 35-7 | 34-0 (1-7 || 1-0 |0-5 | 29 9-5 Id. 15 762 || 34-1 | 31-8 |2-3 || 0-7 |0-3 | 30 0-5 | Bank of clouds on SE. horizon 16 || 765 || 34-2 | 31-4 |2-8 || 1-0 | 0-3 | 31 9-0 | Seud and cirro-strati. ) 17 || 780 || 32-0 |30-0 | 2-0 | 0-1 |0-1 | 31 | 1-0 || Cirro-strati on E. horizon. ») 18 || 796 | 30-4 | 28.6 | 1-8 |0-3 | 0-1 | 30 1-0 Id. d 19 | 816 || 29-0 | 27-6 | 1-4 | 0-2 | 0-0 | 26 0-5 Id. ») 20 837 || 28-9 | 27-4 |1-5 ||0-2 | 0-2 | 26 1-0 || Cirri and cirro-strati. ) [to E.; linear cirri. ©) 21 || 860 || 27-4 | 26-0 |1-4 | 0-2 |0-0 | 22 || —:—:30 1:0 || Homogeneous woolly cirri; loose cum.-str. ; cir.-strati 22 || 875 || 30-1 | 28-0 | 2-1 | 0-1 | 0-1 | 27 || —:—:30)| 7-0 | Woolly cirri; cirro-eumuli ; cirro-strati. S 23 874 | 30-6 | 28-9 |1-7 || 0-1 | 0-1 | 17 2-5 Td. ; cirrous haze ; cumulo-strati on E, hor. @| 24 0 | 872 | 33-7 | 30-1 | 3-6 | 0-1 |0-0 | 20 3-0 | Id. ; id. ; id. O} 1 | 867 || 35-4 | 32.0 |3-4 || 0-1 [0-1 | 24 2-0 || Cirri and cirro-str. near hor. ; cum.-str. in haze to E.@| 2 864 || 35-5 | 31-6 |3-9 || 0-1 | 0-1 | 21 1:0 || As before. © [horizon.€ 3 851 || 34-8 | 32-2 | 2-6 || 0-1 | 0-0 | 20 2-0 | Sheets of mottled cir. and cir.-str. ; cum.-str. low on E 4 || 845 ||32-3 | 30-0 |2-3 | 0-1 |0-0 | 17 | —:—:31] 7-0 || Mottled and woolly cirri and cirro-strati. 5 | 835 || 33-0 |30-3 | 2-7 ||0-1 | 0-1 | 18 10-0 || Cirro-stratus becoming thicker, radiating from NNW. 6 832 || 32-7 | 31-8 |0-9 ||0-2 | 0-1 | 18 10-0 || Cirro-stratus. 7 || 820 | 33-6 |31-1 12-5 110-2 |0-1 | 17 10-0 Id. ; very dark 8 || 793 || 34-7 |31-3 |3-4 ||/0-1 |0-1 | 18 10-0 Cee id. 9 || 780 || 34-7 | 32-0 |2-7 || 0-2 |0-1 | 17 10-0 Id. ; id. 10 || 736 || 34-8 | 32-0 | 2-8 || 0-1 | 0-0 10-0 Id. ; id 11 I 694 || 36-8 | 34.4 | 2-4 ||0-4 | 0-3 | 16 10-0 Id. ; id 12 | 668 || 37-3 | 35-0 | 2-3 | 0-6 | 0-2 | 18 10-0 Id. ? id 13 | 29-609 || 38-8 | 36-3 | 2-5 || 1-1 | 1-4 | 17 10-0 || Cirro-stratus? very dark. 14|| 546 || 39-7 |37-9 | 1-8 | 1-8 | 1-2 | 17 10-0 Ia. ? id. 15 || 510 ||40-8 |39.3 | 1.5 |/3-0 | 1-5 | 17 10-0 Id.? id. 16 || 476 || 41-2 | 40-3 |0-9 | 1-6 | 1-1 | 17 10-0 Id. ? id.; rain®® Wg 447 || 43-0 | 42.3 |0-7 || 1-3 | 0-6 | 17 10-0 || Rain? 18 || 443 || 46-4 | 45.2 | 1-2 | 1-2 |0-7 | 20 10-0 || Scud and cirro-stratus ; fine rain”? 19 | 446 |/45-3 | 43.7 | 1-6 || 0-4 | 0-3 | 20 10-0 || Seud and cirro-stratus, 20 | 471 ||42-7 |41.2 | 1-5 10-3 | 0-1 | 21 || 24:—-:— || 4.0 || Loose scud; cirro-strati; cirri; scud on Cheviot. 21 | 480 || 41-1 | 39-7 | 1-4 ||0-2 |0-3 | 20 | 95:—:—] 4.0 || Seud; cirro-strati on EH. horizon. 22 | 486 || 42-5 |40-6 |1-9 0-5 |0-4 | 20 |24:—-:—-|| 6-0 || Id.; cirro-strati; rainbow. 23 | 500 || 44-0 | 42.5 | 1-5 || 1-2 )0-2 | 18 ||}94:—:—]| 9.5 Id. ; id. ; rain”? 250] 490 44-7 |42.6 | 2-1 | 0-6 | 0-2 | 20 ]94:—-—-]| 9.8 ines: id. ; scud on Cheviot. 1 | 477 ||45-0 |} 43-0 | 2-0 ||0-7 |0-8 | 18 || 23:—-: 96 9-0 Id.; thick woolly cirri; cirro-str. ; scud on Cheviot 2\| 474 |45-3 | 42.9 | 2-4 1-2 |0-8 | 20 |}23:—:—] 9-9 || Id; cirro-strati; scud on Cheviot. 3 || 472 |/45-0 | 43.2 | 1-8 1-2 |}0-9 | 20 193:_-:—] 9.8 GES id. ; woolly cirri. 4 | 472 || 44-7 |43.0 | 1-7 ||0-9 |0-4 | 18 || 24:296:— | 9-8 Smoky seud ; cirro-stratous scud ; woolly cirri. 5 || 478 | 44-3 | 43-2 |1-1 0-6 | 0-2 | 18 |23:—-—]| 10-0 Id. ; id. ; drops of rain. 6 || 463 | 45-3 | 43-6 | 1-7 | 1-1 | 0-8 | 17 10-0 || Scud; cirrous mass ; rain”? 7 i 442 | 45-7 |44-1 | 1-6 |} 1-1 | 0-7 | 18 | | 10-0 Id. ; id 35 id. 8 | 406 46-5 |44.7 | 1-8 | 2-3 | 1-7 | 18 || 10-0 || Id.; id.; Jupiter seen dimly. 9. 369 |\47-1 | 45-2 | 1-9 | 2-6 | 2-4 | 19 | 10-0 kel; id. ; id. 10 | 339 || 47-9 | 45-8 | 2-1 3-2 (3-1 | 19 | 10-0 Id. ; id. ll i 295 | 48-1 | 46-6 | 1-5 || 2-7 | 2-3 | 20 | 9-8 |) Id.; iy very slight drizzle. 12 | 247 48-6 47-0 | 1-6 | 3-3 | 2-8 | 19 9-8 | Id. ; id. ; id. 13 || 29-217 || 49-4 | 47-6 | 1-8 || 4-1 | 3-3 | 19 10-0 | Seud.; cirrous mass; very slight drizzle. 14 186 || 49-8 | 48-0 |1-8 || 3-8 | 2-8 | 19 || 10-0 Id. ; id. ; id. 15 | 166 ||50-2 |48-4 |1-8 3-7 | 1-9 | 19 | 10-0 | Dark; slight drizzle. 16 149 || 50-5 | 48-9 | 1-6 | 3-0 | 1-5 | 19 10-0 || Rain®? 17 || 114 ||51-3 | 49-2 | 2-1 || 2-4 | 0-9 | 19 || 10-0 | Send; cirro-stratus. 18 119 || 53-5 | 50-5 | 3-0 | 2-1 | 3-2 | 21 |, 9-7 || Scud. 19 || 11 | 54-7 |50-8 | 3-9 | 3-3 | 3-3 | 21 | 24:—:—] 8-0 | Id.; cirri. 20 || 132 ||54-9 | 50-8 |4-1 | 3-3 | 2.2 | 21 || 24:—:—|] 9.8 |] Id.; cirro-cumulo-strati. g The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, B. = 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. | Nov. 234 20%, Nov. 244 4h, Vane of anemometer found frozen up. The cirri and cirro-stratus, radiating from N by W. and § by E., and having transverse bars. Ld || cote. | Mean | Time. ae he 25 21 22 23 26 ae eo a CUO ONOURWNK Oo _ _ Baro- METER at 32°. in. 29-135 150 141 150 139 145 134 146 146 128 143 131 136 134 150 164 29-208 226 253 261 282 321 339 342 350 357 368 377 370 371 356 354 305 300 284 274 266 251 255 249 237 214 194 168 149 127 Hovurty METEOROLOGICAL OBSERVATIONS, NOVEMBER 25—28, 1845. 259 THERMOMETERS. WIND. Clouds, Maximum Se.: C.-s.: Ci., Sky . ‘ Dry. | Wet. | Diff. force in [From iin clouded. Species of Clouds and Meteorological Remarks. 1», )10™, ae a © 2) Tbs. Ibs. | pt. pt. pt. pt. 0—10. 54-8 | 50-4 | 4-4 13-3 |3-7 | 21 |) 24:—:—] 9-9 || Scud; cirro-strati. 54-7 | 50-8 | 3-9 || 2-7 | 1-4 | 23 || 24:—:—| 10-0 Id. ; id. ; drops of rain. 55-0 |51-1 | 3-9 || 1-8 | 1-0 | 21 | 24:—:—| 10-0 Id.; cirrous mass. 52:0 | 49-4 |2-6 | 1-3 |0-4 | 25 || 23:—:—|! 10-0 Td id. ; rain? 54-6 151-2 |3-4 | 1-1 | 2-2 | 20 |}24:—:—]| 9-9 Id.; cirro-strati. [rain 54-3 |50-3 | 4-0 || 2-4 | 1-6 | 20 || 24:25:— || 10-0 || Loose scud; nearly homogeneous mass of cir.-cum.-str. ; 53-8 |49-7 |4-1 || 2-1 | 2-0 | 20 || 24:—:—|| 10-0 || As before. 52-0 |49-0 | 3-0 || 1-3 | 2-1 | 20 || 24:—:—|| 10-0 || Loose scud; dense mass of cirro-stratus. 51-4 {48-3 | 3-1 |} 1-1 | 1-7 | 21 10-0 Id. ; id. ; rain”? 51-4 |48-4 |3-0 | 1-5 | 1-3 | 20 9-7 || Scud and cirro-stratus. 52-5 | 49-2 |3-3 || 2-8 | 1-3 | 19 10-0 Id. 52-6 | 49-1 |3-5 || 2-1 | 2-9 | 20 10-0 Td. 53-1 | 49-0 | 4-1 || 3-2 | 2-1 | 20 10-0 Id. 53-1 |49-0 | 4-1 |}4-3 | 2-3 | 21 3-0 || Scud. 51-3 | 46-9 |4-4 4-6 | 2-2 | 22 2-0 || Id.; 115 35™, a flash of lightning on NE. horizon. 51-5 | 46-7 |4-8 || 3-2 | 2-8 | 22 1-5 || Scud on horizon. 51-1 |46-0 | 5-1 || 6-2 | 2-8 | 21 1-0 || Scud on horizon. 50-7 |} 46-2 | 4-5 | 3-7 | 2-8 | 22 0-5 || Seud. 49-2 |44-9 |4.3 || 2-8 |1-5 | 21 0:5 Td. 49-3 |45-1 [4-2 | 2-0 |3-0 | 21 3-0 Id. 48-3 | 44-7 |3-6 || 2-5 |0-7 | 21 2-5 Id. 48-4 |44.2 | 4.2 ] 1-7 |1-3 | 22 9.0 Id. 48-5 |44-5 |4-0 || 1-0 |0-0 | 20 10-0 Id.; a few drops of rain. 47-0 | 43-7 | 3-3 || 0-3 |0-2 | 18 | 25:—:—]| 9-7 || Scud and cirro-stratus. 47-9 | 46-8 |1-1 ||0-9 | 0-3 | 18 ||23:—-:—|} 9-8 || Smoky seud; hazy cirro-stratus ; cirro-cumuli. 48-7 | 46-3 |2-4 |/0-8 | 1-3 | 19 |) 24: —:— 7-0 || Seud. 49-0 | 45-6 |3-4 | 1-2 |0-5 | 19 || —:23:—|| 7-0 || Cir.-cum.-str. ; scudnearhor.; portion of a rainbow.© 50-2 | 46-3 |3-9 | 1-4 |0-3 | 21 || 24: 23:— 8-5 || Masses of seud; cir-cum.-sts. & loose cir,-str. ; portion of a rainbow. 49-4 |}46-5 |2-9 | 0-4 |0-1 | 19 || 23:23:— 9-8 || Scud; dense cirro-stratus ; drops of rain. 48-1 | 46-4 |1-7 ||0-2 |0-1 | 18 || 23:—:—]} 10-0 fdas id. ; slight drizzle. 47-6 | 46-7 |0-9 ||0-3 |0-1 | 18 || 23:—:—|| 10-0 Id. ; id. ; id. 47-4 | 46-5 |0-9 ||0-2 |0-0 | 20 || 22:—-:—|| 9-8 || Loose seud; cirro-stratus ; id. 47-4 | 46-6 |0-8 || 0-2 |0-2 | 21 || 21:—:—J| 10-0 || Seud; drizzling rain”? 50-3 | 48-4 | 1-9 || 2-2 |2-0 | 20 10-0 Td. 50-8 | 48-2 |2-6 || 2-7 | 2-0 | 20 10-0 Id. 50-7 | 48-3 |2-4 || 2-9 | 1-8 | 20 10-0 Id. 50-8 | 48-2 |2-6 ||2-0 | 1-5 | 21 10-0 Id. 50-6 | 47-9 | 2-7 || 1-6 | 0-8 | 21 7-0 || Id.; clouds broken. 50-2 |47-7 | 2-5 || 1-1 |0-9 | 21 10-0 Id.; cirrous clouds ? 50-1 | 47-5 |2-6 || 1-3 |0-7 | 20 10-0 || Id.; id. 49.7 | 47-3 | 2.4 || 1-3 |0-6 | 21 9-8 || Send; cirrous clouds; clouds broken to S. 49-6 |47-3 | 2-3 || 1-0 |0-6 | 19 10-0 || Id.; id. ; id. 49-6 |47-1 | 2-5 || 1-4 |0-6 | 19 10-0 Id. ; id. 49-2 | 46-4 |2-8 || 1-0 |0-4 | 19 9-5 Id. ; id. 48-3 |45-9 | 2-4 ||1-4 |0-4 | 19 7-0 Id. ; id. 47-0 | 45-2 | 1-8 |}0-3 |0-3 | 18 9-8 || Cirro-strati; cirrous haze ? 47-5 | 45-6 | 1-9 ||0-4 |0-1 | 18 10-0 || Scud and cirro-strati. 46-9 | 44-8 | 2-1 || 0-4 |0-1 | 18 10-0 Id.; cirrous haze. 46-8 |45-5 |1-3 ||0-7 |0-3 | 18 || 21:—:—|| 10-0 Id.; dense homogeneous cirro-stratus ; rain’? 47-0 |45-7 |1-3 || 0-3 |0-1 | 16 || 18:—:—J| 10-0 || Id.; id. 48-0 |46-8 |1-2 ||0-1 |0-0 | 16 || 18:—:—|| 10.0 Id. ; id. 48-4 | 46-8 |1-6 || 0-2 |0-1 | 16 || 18:—:—|| 10-0 Id. 5 id. ; rain” 48-5 |46-8 | 1-7 ||0-6 |0-3 | 16 || 18:—:—|| 10-0 || Id; Tie & id. 49-3 | 47-1 |2-2 ||0-5 |0-3 | 16 ||18:17:—/|| 10-0 || Loose scud; cir.-str.scud; sheets of cir.-str.; scud lying 49-4 |46-9 |2-5 ||0-8 |0-4 | 17 ||18:—:—) 9-9 || Scud; masses of cirro-stratus. [on Cheviot. 48-7 | 46-4 (2-3 ||0-5 |0-4 1 17 ||19:—:—|| 9-9 Ta 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 motions 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. al B ouds, Se 5 Se. C8: Ci,l| Sk . Mean | METER ieee "moving i ancaed! Species of Clouds and Meteorological Remarks. Time. | at 32°. Dry. | Wet. | Diff. ee From pil aby S|, in. ‘2 ne in lbs. | Ibs. pt. pt. pt. pt. 0—10. 28 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 aes id. 7 103 |) 48-4 | 46-2 | 2-2 | 0-6 |0-3 | 16 10-0 Id. ; id 8 101 || 49-1 |46-5 | 2-6 | 0-8 |0-7 | 16 10-0 Td. ; id 9 084 || 48-6 |46-0 | 2-6 ||0-6 | 0-7 | 16 10-0 Id. ; id 10 067 || 48-2 | 45-9 | 2-3 || 1-4 |0-5 | 16 10-0 Tdes id ll 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 Id. 15 | 29-020 | 44-3 | 41-8 |2-5 | 1.0 |0-5 | 16 | 0-0 || Ia. [shower at 16" 30™, 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 ; a heavy 17 || 954 |144-6 |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 || Id. 20 || 28-986 || 43-9 | 41-4 | 2-5 |} 2-1 |1-4 | 18 }20:—:—]| 98 Id.; drops of rain. 21 || 29-036 || 43-2 | 41-2 | 2-0 | 3-7 |2:3 | 19 }91:—:—] 95 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. | 23 185 || 46-3 | 41-9 | 4-4 || 3-8 |3-5 | 20 | 94: —:— 9-2 ik id. ; id. Oftion ofahalo. © 29 0 266 || 47-0 | 41-8 | 5-2 || 2-5 | 1-7 | 21 || 94:—:21 8-0 Id.; little flocks of wo. cir. ; linear cir. dispersed over the sky ; por- | 1 286 || 46-3 | 42-1 |4-2 |} 2-1 |0-9 | 21 || 93:—:21 7-0 || Patches of seud ; woolly cirri; haze. (0) 2 312 ||45-6 | 40-7 | 4-9 | 1-5 | 1-2 | 21 || 93:—:21]} 8-0 || Cumulous seud; cirri; cirro-strati. 3 324 || 43-4 | 40-4 |3-0 |} 2-0 |1-2 | 18 |} 93:—:21 8-0 || Scud; woolly cirri; cumuli; cirro-strati. O} 4 339 || 42-7 | 38-7 | 4-0 || 1-8 |1-0 | 20 || —:—:21]] 6-5 || Woolly cirri radiating from SW. and NE.; sheet of 5 351 || 41-3 | 38-9 | 2-4 || 1-4 |0-8 | 19 ||} 22:—:—|) 1-5 || Patches of seud; woolly cirro-strati. {cir.-str. ©} 6 375 || 40-1 | 38-0 0-3 |0-3 | 21 1-0 Id. ; id. | if 8 9 377 || 38-7 | 36-9 0-4 |0-2 | 17 0-5 || Clouds on E. horizon, 382 || 38-6 | 36-7 0-8 | 0-1 | 20 0-2 || Clear; a patch or two of cloud to E. ¢ 376 || 38-1 | 36-4 0-6 |0-8 | 21 0-0 Id. 10 376 || 37-7 | 36-1 0-5 |0-7 | 20 0-3 || Masses of seud to S. 11 381 || 37-8 | 36-2 0-2 |/0-1 | 22 0-5 || Clouds on E. horizon. 12 371 || 36-7 | 35-4 0-2 |0-1 | 22 0-2 Id. 234| 29-481 || 38.6 | 37-4 1.0! |'0:2" | equ eeestone eee hae cirro-stratus 5 patches of seud ; light rain in the | morning. p.M., curled cirri and cirro-strati. 30 13 || 29-047 || 48-1 | 46-6 8-5 |2-4 | 18 10-0 || Scud and cirrous clouds? rain”? 14 012 || 48-5 | 47-3 3-7 |1-9 | 19 10-0 dns rain”? {at intervals. 15 047 || 46-3 | 44.2 2-9 |1-1 | 20 10-0 Td. ; very dark; rain”, showers’—* 16 058 || 44-7 | 42.3 1-1 | 1-6 | 20 2-0 || Cirrous scud ? 17 098 || 41-5 | 38-9 3-4 |1-7 | 20 0-8 Td. 18 135 || 38-6 | 37-2 1-9 |0-3 | 20 9-2 || Seud 19 157 || 40-6 | 37-8 2-4 |1-0 | 20 9-0 Id. 20 170 || 37-7 | 35-5 2-1 |0-6 | 21 0-2 || Scud lying on Cheviot; streaks of cirri to E. 21 || 171 || 37-9 | 36-0 1-6 }1-5 | 19 || 23 :— | 1-5 || Seud; atmosphere hazy. 22 179 || 38-9 | 36-9 2-8 | 18 || 22 :—| 6-0 Id. s) HOON HROBRHE DS BY SAGNWOHE w a WNENNE NNN EE SE He ree eb 23 182 || 41-5 | 38-4 | se 4.0 Id.; woolly and mottled cirri. 10 177 || 42:3 | 38-4 |3-9 || 3-7 |3-3 | 19 || 22: :—|| 9-0 || Scud and loose eumuli; cum. ; cir.-str.; cirrous haze.@ © ig se a | oO ao 1 178 || 42-0 |38-3 | 3-7 || 3.7 | 2-2 | 20 || 22:—-:—] 6-0 || Scud; cumuli; cirro-strati. (0) [{showers. © 2 182 || 41-2 | 38-9 | 2-3 || 3-2 | 2.7 | 21 | 22:—:24|| 7-0 || Scud; thick woolly cirri; cum. ; cirrous haze; passing] 3 198 || 43-0 | 39-2 | 3-8 || 5-0 | 2-8 | 20 || 22: 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 seud on S. horizon. 5 244 || 38-6 | 36-7 | 1-9 || 2-5 | 1-1 | 20 | 23 :—|| 6-0 || Seud; 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 | 1.8 | 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 Ia. 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, HE.=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. : Hovurty METEOROLOGICAL OBSERVATIONS, DECEMBER 1—3, 1845. 261 eS SSS SS SE Gott. || Baro- Mean || METER at 32°, / | Time. ie | i Lae, 12 408 1] 13 || 29-415 i] 14 393 | 15 414 1} 16|| 394 17 37 | | 18 367 ‘}19 373 | 20 383 | 21 405 | 22 412 | 23) 405 \}2 0] 404 ‘| 378 j 2 342 ! 3 291 f 4 258 A 5 222 6 193 7 152 8 114 9 094 10 076 tents ee nur lec, 24 21%, fa oh in. {1 11 | 29-355 THERMOMETERS. WIND. Maximum Dry. | Wet. | Diff.) force in |From 14, )10™. s s i Ibs lbs. pt. 37-7 | 36-2 |1-5 || 1-1 | 1-3 | 19 35-9 | 34-8 | 1-1 || 3-6 |0-3 | 19 36-5 | 35-5 |1-0 || 0-7 |1-6 | 18 36-8 | 35-7 | 1-1 || 1-4 |1-4 | 18 36-4 | 35-1 |1-3 || 1-4 |0-6 | 18 37-9 | 36-3 | 1-6 || 1-1 |0-5 | 19 38-0 | 36-3 | 1-7 || 0-8 |0-5 | 18 36-1 | 34-8 | 1-3 | 0-7 |0-5 | 19 37-6 | 36-2 |1-4 | 0-8 |0-4 | 19 38-6 | 36-9 |1-7 | 0-8 | 0-4 | 19 37-5 | 35-4 |2-1 || 0-4 |0-1 | 19 36:3 | 34-9 |1-4 || 0-4 |0-1 | 19 39-2 | 37-0 |2-2 |} 2-5 |1-0 | 20 40-6 | 37-7 |2-9 || 1-8 | 1-8 | 20 41-4 | 38-6 | 2-8 || 2-3 | 1-1 | 20 41:5 | 38-6 |2-9 || 1-4 |0-8 | 18 41-2 |37-7 |3-5 || 1-3 |0-7 | 19 38-6 | 37-2 | 1-4 || 1-1 |0-1 | 19 38-0 | 36-5 |1-5 || 0-3 |0-6 | 18 37-7 | 36-3 | 1-4 || 0-6 |0-2 | 18 36-5 | 35-5 | 1-0 || 0-3 |0-3 | 17 37-0 | 36-1 |0-9 || 0-2 |0-1 | 17 38-4 | 37-2 |1-2 0-3 |0-1 | 18 37-0 | 36-2 |0-8 || 0-3 |0-0 | 18 35-9 | 35-3 |0-6 | 0-0 |0-0 | 22 36-4 | 35-6 |0-8 || 0-0 |0-0 | 18 36:5 | 35-7 |0-8 || 0-1 |0-3 | 18 36-7 | 35-4 |1-3 || 0-5 |0-3 | 20 35-2 | 34-2 |1-0 | 1-1 |0-3 | 20 35-2 | 34-3 .|0-9 || 0-4 | 1-1 | 19 34-6 | 33-1 | 1-5 || 0-8 |0-5 | 20 34-0 | 32-2 |1-8 || 0-7 |0-4 | 22 33-2 |31-8 | 1-4 || 0-6 |0-3 | 21 33-3 | 32-1 |1-2 ||0-3 |0-1 | 23 31-3 | 30-5 |0-8 || 0-3 |0-0 | 21 34-0 | 32-8 | 1-2 || 0-3 |0-1 | 16 35-2 | 33-8 | 1-4 | 0-3 |0-4 | 18 35-4 |33-5 | 1-9 || 0-4 |0-1 | 20 36-5 | 34-3 | 2-2 || 0-3 |0-0 | 20 37-9 | 35-7 | 2-2 ||0-4 {0-3 | 20 36-6 | 34-6 |2-0 || 0-6 |0-2 | 20 33-6 | 32-4 | 1-2 || 0-3 | 0-0 8 34-7 |32-7 |2-0 || 0-3 |0-2 | 23 34.1 |32-1 | 2-0 || 0-2 |0-1 | 23 32-7 | 31-0 | 1-7 || 0-5 |0-2 | 22 33-1 | 31-3 | 1-8 || 0-5 |0-2 | 22 34-0 | 31-4 | 2-6 || 0-6 | 1-2 | 22 32-0 | 30-3 |1-7 || 0-2 |0-1 | 22 30-7 | 29-1 | 1-6 || 0-1 |0-1 | 24 31-6 | 29-6 | 2-0 || 0-2 | 1-1 | 22 31-6 | 29-6 | 2-0 || 0-6 |0-3 | 23 30-3 | 28-6 | 1-7 || 0-2 |0-1 | 23 29-9 | 28-4 |1-5 | 0-2 |0-1 | 21 28-6 | 27-4 | 1-2 || 0-3 |0-1 | 21 29-3 |27-9 | 1-4 || 0-3 |0-1 | 20 Clouds, Se.: C.-s.: Ci, Sky moving clouded. Species of Clouds and Meteorological Remarks. from pt. pt. pt. 0—10. 4-0 || Scud to N.; 11° 5™, a flash of lightning. 10-0 || Rain®?; a slight shower of hail lately. 2-0 || Scud. 0-3 || Streaks of cloud to NE. 1-0 || Thin clouds near the horizon. 8-0 || Thin clouds and haze oyer the sky. 1-5 || Scud on horizon. 1-0 Id. 3-0 || Cirro-stratous scud? drops of fine rain. 24:—:—|} 9-2 |! Send. 23:—:—|| 5-0 || Id.; seud on Cheviot, clouds tinged red. =" 2S ao ae Cirro-stratous scud ; scud on Cheviot. 9) se — : Id. ; id. 21:—:24 7-0 Seud; woolly, mottled, and linear cirri and Pea ale —:—:23)) 9-5 || Thick woolly cirri; cirro-strati; scud on horizon. © —:—:22 9-0 Thickening woolly cirri and cirro-strati ; secud \n hor. ; solar halo. @} 9-8 || Dense mass of cir.-str.; loose scud and cir.-str. on hor. 9-8 || As before. 20:—:—|| 10-0 || Scud; masses of cirro-strati; cirrous mass. 10-0 || Send and cirro-stratus. 3-0 |) Scud. 7-0 Id. 10-0 || Rain®® 10-0 || Scud and cirro-stratus. 6-0 Id. 4-0 Id. ; haze. 9-8 || Scud and cirro-stratus ; rain”? 7:0 Id. 3-5 Id. 8:0 Id. ; rain”? 9-0 Id. ; drops of rain. 2-0 Id. on horizon. 1-0 || Masses of scud and thin cirro-stratus. 7-0 || Scud and cirro-strati. [strati and cirri. 24:—:—| 7-0 || Scud, cumuli, and cumulo-strati on hor. ; woolly cirro- 9-5 || Woolly cirro-strati and cirri ; cumuli on NE. horizon. © —:22:22)| 7-0 Id. ; id. (0) 25:—:—|| 5-0 || Loose scud; cirro-strati and cirri; cumulito NE. © 24:—:—|| 8-0 || Seud; cumulo-strati to NE. ; cirro-strati. © 23:20:—|| 6-0 Id.; cirro-strati. © 24:—:—| 8-0 Td. ; id,; cum.-str. on NE, hor. ; snow on Cheviot. 7-0 || Cirro-strati ; cumulo-strati on NE. horizon. 24:—:—| 5-0 || Sena, ») 0-5 | Cirro-stratous scud to S.; double auroral arch. »)) 0-3 Id. ; aurora. »)) 0-2 Id.; black patch of cloud below auroral arch to NNE. 0-1 Clear; aurora. See notes to Eztra Magnetical Obs. of this date. 0-0 0-0 || Flash of lightning on SSW. horizon ; auroral arch still bright. 0-0 0-0 | Bright auroral arch about 10° altitude ; streamers at 50° altitude, 0-0 Very clear; arch about 8° altitude internally, 8° broad. 0-0 Id.; rapidly pulsating arch. 0-5 Masses of cirro-strati to NNW., radiating from that point ; aurora. 0-0 Faint, nearlyhom. aurora within 10° of hor.; rows of pulsating brushes. 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 ions 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™, 262 Gott. BaRo- Mean METER Time at 32°. ad. h in. 3 18] 29-312 19) 326 20 | 341 21|} 352 22 | 371 23 371 4 0 369 1 353 2 342 3|| 323 4] 301 5 287 6 261 7| 215 8) 162 9 | 112 10) 29-030 11 | 28-989 12}; 925 13 | 28-865 14 |) 823 15|| 815 16) 809 17 784 18 811 19 812 20 812 21 820 22 835 23 855 5 0 859 1 860 2 876 3 887 d 906 5|| 914 6 932 7 929 8 929 9 931 10 937 1l 948 12 921 13 || 28-921 14 926 15 910 16 926 17 927 18 942 19 942 20 966 21 986 22 || 28-998 23 || 29-012 6 0 016 1 012 Hourty METEOROLOGICAL OBSERVATIONS, DECEMBER 3—6, 1845. Species of Clouds and Meteorological Remarks. Clear ; very faint auroral arch about 10° alt., still visible. Id. ; patch of seud on Cheviot. Id.; cirro-strati. \ Woolly cirro-strati and cirri; cum.-str. on ENE. hor. | Id. ; cirro-strati and seud. ©) Loose cirro-strati; sheet of cirro-strati. Cirro-cumulo-strati; loose seud. c Cir.-cum.-str. and cirro-stratus ; cum.-str. ; wool. cir.@ Thick cir.-str. ; sheets of cir.-strati ; cir. ; haze ; scud on As before. [Cheviot, &c. Td. Dense mass of cirro-stratus ; cirro-strati. Patches of scud and sheet of cirro-stratus. Id. ; clouds broken, Cirro-stratus ; clouds broken. Scud and cirro-strati; sky in zenith. Id. ; clouds broken. Td. Id. Very slight drizzle. Id. Clouds on horizon. Seud ; occasionally drops of rain. Id. Id. 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 horizon. © Id. ; id. ; nimbi. © Scud and cir. masses of cir.-str. like the tops of nimbi. Loose scud, cirro-strati, cumuli and nimbi. © © As before; cumulo-strati. Id.; — nimbi all round horizon. ] Id. ; id. ; sky looking very wild. Cirrous masses of cir.-str. ; nimbi ; dense clonds to N. Send. } [stormy-like. Id. and cirro-strati on horizon. Scud and cirro-strati on horizon. Scud and cirro-strati. Clear ; clouds on N. horizon. Td. id. Id.; clouds on NE. and SW. horizon. Cirro-strati. Seud. Id. Cir.-str. seud with cir. fringes; woolly and mottled ci 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, 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. bs Clouds, Maximum Se. : C.-8.: Ci., Sky Dry. | Wet. |Diff.| free 1 | From ere | aegis S| | ae e 2 * | Ibs. | Ibs. | pt. pt. pt. pt. 0—10. 30-4 | 28-9 | 1-5 || 0-3 |0-2 | 21 0-0 30-4 | 29-1 |1-3 || 0-2 |0-1 | 20 0-1 30-6 | 29-6 |1-0 || 0-2 | 0-2 | 19 0-2 33-0 | 31-7 |1-3 || 0-2 |0-2 | 19 || —:26:—|| 7-0 34.4 | 33-1 |1-3 | 0-4 |0-2 | 20 |} —:25:—|| 5-0 33-4 | 32-7 |0-7 || 0-4 |0-8 | 19 || —:26:—]] 2-0 36-2 | 34-4 |1-8 ||0-8 |0-4 | 20 || —:26:—|] 9.8 37-1 | 35-2 |1-9 ||0-4 |0:7 | 19 | —:27:—|| 9.0 38.4 | 35-9 |2-5 |/1-3 10-9 | 19 |—:27:—|] 9-8 138-3 |36-0 | 2-3 |10-8 |0-4 | 20 ||: 26:—]] 9-8 | 38-8 | 36-6 |2-2 |/0-5 |0-5 | 19 || —:26;—)} 10.0 | 39-4 | 37-4 |2.0 |11-2 |0-5 | 20 10-0 139-3 | 37-7 |1-6 ||0-4 |0-1 | 19 10-0 (37-1 | 36-2 |0-9 || 0-0 | 0-0 10-0 39.6 |38-1 |1-5 ||/0-5 |0-4 | 18 9.5 139.7 | 38-4 |1-3 ||0-7 |0-5 | 18 | 8-8 140-1 |38-5 |1-6 || 1-3 |0-6 | 18 | 10-0 40-9 | 39:3 |1-6 ||0-5 |0-2 | 18 | 10-0 41-0 | 39-6 | 1-4 | 0-5 |0-4 | 18 | 7-5 |41-1 |40-0 | 1-1 | 0-7 |0-6 | 18 | 9-9 | 43-9 |43-1 |0-8 || 1-4 |0-9 | 19 | 10-0 44.1 |41-9 |2.2 || 1-1 |0-5 | 20 | 0-5 43-4 |39-6 |3-8 || 2-5 | 1-8 | 21 | 10-0 41-4 |38-4 |3-0 || 2-9 | 1-4 | 19 | 8-0 42.0 |38-6 |3.4 /2-4 |1-4 | 21 | 9.9 41-8 |38-4 | 3-4 |/5-0 |2-8 | 22 | 05 41-6 | 37-7 |3-9 || 3-4 11-8 | 20 | | 5-0 41-6 | 37-8. |3-8 || 4-2 |3-1 | 22 |} 24:—:—]) 4.0 141-4 |37-9 |3-5 ||3-4 |4.2 | 21 | | 2.0 41-0 |38-6 |2-4 |14.0 |2.4 | 22 || —:94:— || 2.5 40-9 | 37-7 |3-2 ||3-9 |2.3 | 19 ||24:24:—]] 1-0 | 39-4 |37-2 |2-2 || 2-8 |0-8 | 20 || 1:5 40-4. |37-3 |3-1 ||2-5 |2-2 | 22 |/94:—:—|} 1.5 39-0 |37-0 |2-0 || 3-1 |0-5 | 19 1-5 40-8 | 38-0 |2-8 ]/ 1-3 |1-2 | 21 |}94:—:—]] 7-5 40-5, | 37-2 |3-3. || 1-2 | 1-2 | 20 |} | 5-0 38-6 | 36-3 |2.3 |) 1-3 |0-5 | 19 | 5-0 38-9 | 36-9 |2-0 || 0-7 |0-4 | 20 9-8 | 37-4 | 35-8 |1-6 ||0-7 |0-3 | 19 | 0-8 37-3 |35-4 |1-9 ||0-6 |0-3 | 20 1-0 37-9 |36-1 |1-8 ||0-6 |0-9 | 19 |}25:—:—|| 6-5 37-9 |35-9 |2-0 || 1-4 |0-8 | 20 |) 7-5 |37-7 |35-5 | 2-2 || 1-4 |1-3 | 20 | 2-0 38-7 |36-4 |2-3 |/2-0 |1-6 | 19 |] 3-5 38°7 |36-2 |2-5 || 2-2 11-8 | 20 || 3-0 37-9 |35-7 |2-2 || 1-3 |1-3 | 20 1-0 37-6 |35-4 |2-2 || 2-0 |1-2 | 21 1-0 36-7 |34-8 |1-9 1-3 |0-5 | 20 1.0 36-3 | 34-6 |1-7 ||0-6 |0-3 | 19 || 4.0 37-1 | 35-1 |2-0 || 1-0 |0-3 | 19 | 4-0 39-0 | 36-6 |2-4 | 0-5 |0-7 | 19 | 22:—:—}| 9.5 36-6 | 34-9 | 1.7 |/0-5 |0-1 | 19 || 22: — 3-0 36-4 | 35-1 | 1-3 ||0-2 |0-1 | 20 | 22:—:—] 25 40-1 | 38-6.|1-5 0-1 |0-0 | 18 ||22:—:—|| 9.0 |41-0 | 39-4 |1.6 | 0-1 |0-0 | 16 /22:—:—j| 9-0 44-1 | 41-3 | 2-8 | 0-3 | 0-2 | 18 loo: — | 9-5 ee ema a aie tian, I —————————————— 715 712 709 673 656 639 622 624 616 595 578 593 541 548 556 571 || 29-584 587 608 612 626 640 653 657 666 656 669 670 679 670 675 684 703 713 741 Hovurty METEOROLOGICAL OBSERVATIONS, DECEMBER 6—9, 1845. 263 THERMOMETERS. WIND. Clouds, || ‘ Se. : C.-s.: Ci.,|| Sk 3 . Bertin t-test ae el moving eloa a d. Species of Clouds and Meteorological Remarks. 15, |10™, be cl s ) lbs. | Ibs. pt. pt. pt pt. 0—10, 41-0 | 39-2 | 1-8 ||0-2 |0-0 | 19 || 22:22:—1|| 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 ids; id. 36-7 | 35-7 | 1-0 || 0-0 |0-0 | 20 || —:21:—| 9-5 | Cirro-stratous send. > 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. y 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. to S 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. ; fogey. 39-3 | 38-2 | 1-1 ||0-3 |0-2 | 19 | 20:—:—J]] 9-9 || Misty and cirro-stratous seud. 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. seud ; 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 || Seud ; cirro-cumulo-strati. 43-1 | 41-4 | 1-7 || 0-6 |0-4 | 18 9:8 Id. ; id. >} 43-5 | 41-7 | 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 || Seud and cirro-cumnlo-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 || Seud ; 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 S. 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 || Seud 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:—}) 3-0 |) Scud; cirro-cumulo-strati. 43-4 |39-3 | 4-1 |) 1-9 | 2-0 | 25 0-5 || Loose scud and cirro-strati on horizon. (0) 43-9 | 40-3 | 3-6 ||3-9 |1-7 | 26 || 26:—:—|| 1-0 || Loose scud and cumuli. (0) 41-5 138-3 | 3-2 |/4.3 11-5 |24yv. 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. (0) 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. y 39-9 | 36-8 | 3-1 || 2-3 | 1-8 | 25 0-1 || Seud on Cheviot. y 40-2 |37-0 | 3-2 | 2-0 |1-0 | 26 1-0 || Cirro-strati to W. and SW. y direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, E.= Sy Se 16), Wisi -24., he ons of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 264 Hourty MrreorRoLOGICAL OBSERVATIONS, DECEMBER 9—11, 1845. THERMOMETERS. WIND. “ | Gott. || Bano- IL : Se perkegeen e Mean || METER || Meximum poh es 2 ae eo Al Species of Clouds and Meteorological Remarks. Time. || at 32°. || Dry. | Wet. | Diff. | force in |Pyom g 5 : | | from | } }} 15. ;10™. a. h. | in. mY 2: ° |! Ibs. | Ibs. pt. pt. pt. pt. 0—10, 9 8]/ 29-752 || 40-4 | 37-3 | 3-1 |) 1-5 | 1-2 | 25 | 0-5 || Cirro-strati to W. and SW. 9) 779 ||40-1 | 37-0 |3-1 || 1-9 |1-6 | 26 | 0-7 || Cirro-strati and cirrous haze on horizon. dy} 10|| 810 | 38-8 | 36-8 | 2-0 || 1-7 |0-7 | 26 | 1-0 || As before. ») [corona and halo. } 11 843 | 40-1 | 36-9 | 3-2 || 1-4 |0-8 | 26 1-5 |) Thin cir.-str. and streaks of cir. lying E. and W.; luna 12 871 || 40-2 | 36-8 | 3-4 || 1-3 |0-8 | 27 | | 4-0 |) Nearly as before ; lunar corona and halo. j 13 | 29-888 | 39-6 | 36-6 |3-0 || 0-8 |0-5 | 26 || —:—: 29 | 5-0 || Woolly cir. and cir. haze ; lunar cor. and halo ; two shoot 14} 906 i 39-9 | 36-6 |3-3 || 1-2 |0-8 | 26 | 5-0 Cirri in streaks and parallel bars. | ) [ing-stars. )] 15 | 933 | 38-7 | 35-8 |2-9 || 0-9 |0-2 | 26 5-0 || Strips of thin cirri lying NW. and SE., barred across. } 16 | 970 || 38-1 | 35-2 | 2-9 | 0-0 |0-1 | 19 2-0 || Thin cirri and cirrous haze ; lunar corona. 17 || 29-990 | 36-8 | 34-6 | 2-2 | 0-2 |O-1 | 21 | 2-0 Td. 18 || 30-010 | 35-3 | 33-7 | 1-6 /0-2./0-1 | 18 1-8 || Cirro-strati. 19|| 030 || 36-2 | 34-2 | 2-0 || 0-2 |0-1 | 18 1-0 Id. [cirro-strati to W 20|| 044 | 35-2 | 33-4 | 1-8 || 0-0 | 0-0 | 20 | 1-0 | Band of cir.-str. and cir. to E.; clouds on E. horizon 21|| 063 || 35-0 | 33-5 |1-5 |/0-1 |0-0 | 20 || 28:—:—| 2.0 || Patches of scud; woolly cirri; cir.-str.; cirrous haze, 22 078 || 35-2 | 33-8 | 1-4 || 0-1 |0-0 | 28 || —:—:30 6-0 Woolly cir. and cir. haze; scud; cir.-str.; solar halo at 224 30m. | 23) 102 | 36-9 | 35-1 |1-8 | 0-0 |0-0 | 28 |—:—:30] 9-0 || Sky nearly covered with woolly cirri and cirrous haze. 10 0 100 || 39-2 | 37-0 | 2-2 | 0-0 |0-0 | 26 10-0 Id. ( 1 090 || 39-5 | 37-4 | 2-1 ||0-0 |0-0 | 8 10-0 fds. faint solar halo. 2) 071 || 40-7 | 38.2 | 2-5 || 0-1 |0-0 | 20 10-0 | Cirro-stratus and cirrous haze. r 3 059 || 40-0 | 37-8 | 2-2 | 0-0 |0-0 | 16 10-0 Id. 4 045 || 39-8 | 37-6 | 2-2 || 0-0 |0-0 | 18 10-0 || Undulated cirro-stratus and cirrous mass. 5 || 30-005 | 38-4 | 36-8 | 1-6 | 0-1 0-1 | 17 10-0 des radiating from N by W 6 | 29-986 | 40-3 | 38-5 | 1-8 || 0-3 |0-1 | 20 10-0 || Mass of cirro-stratus. {and S by E 7|| 959 |) 40-0 | 38-3 | 1-7 ||0-2 |0-2 | 18 | 10-0 Id. 8 903 || 40-2 | 39-0 | 1-2 || 0-2 | 0-1 | 18 10-0 Td. 9|| 839 | 42-6 | 41-3 |1-3 || 1-0 |0-9 | 18 || —:22:—|| 10-0 | Thin cirro-stratus. 10 793 ||44-0 |42.5 {1-5 || 1-7 | 1-1 | 18 10-0 || Cirro-stratus. 11 725 | 45-5 /44.0 |1-5 | 1-5 12-3 | 19 | 10-0 Td. 12 656 ||46-3 | 44-8 | 1-5 || 1-6 | 1-4 | 19 10-0 || Seud and cirro-stratus. 13 || 29-607 || 47-4 | 45-6 | 1-8 || 2-1 |1-3 | 19 ; 10-0 | Scud and cirro-stratus ; drops of rain. 14 555 |147-7 | 46-4 | 1-3 || 2-2 |1-6 | 18 10-0 Id. ; id. 15 524 || 49-2 | 47-1 | 2-1 || 1-3 |0-5 | 19 || 24:—-:—|| 9-5 || Scud; coloured lunar corona. ; 16 495 || 50-4 |46-5 | 3-9 | 2-4 |1-3 | 24 || 25:—:—] 7-0 || Id.; a patch of cir.-str. producing a diffuse coloure 17 500 || 47-2 |42-0 | 5-2 | 4-9 |3-2 | 29 || 25:—:—|| 3-5 | Seud; coloured lunar corona, ») {lunar cor. 18 494 || 46-4 | 41-5 | 4-9 || 3-3 | 2-0 | 26 6-0 || Seud and loose cumuli. y 19 485 |/43-6 | 38-1 |5-5 || 4-0 | 1-1 | 24 0-5 || Patches of scud. 20 459 || 42-3 | 37-3 |5-0 | 2-5 | 2-3 | 24 : 0-8 Id. 5 long cirrous streaks radiating from SW 21 445 || 42-8 | 37-5 [5-3 || 4-9 | 3-7 | 25 | 0-8 || Streaks of cirri and patches of scud on horizon. 22 442 | 43-2 | 38-1 |5-1 || 5-7 | 5-3 | 28 0-2 || Patches of scud and haze on horizon. 23 485 | 43-5 | 39-6 |3-9 | 5-8 | 4-3 | 28 1-0 | Loose seud. 1 Ie) 507 | 44-4 | 39-5 | 4-9 |/4-5 | 3-7 | 27 || 28:—:—| 6-0 || Seud and loose cumuli. 1 523 || 44-0 | 38.4 |5-6 | 4-9 |5-3 | 29 || 29:—:—]| 4.0 Id. 2 555 ||43-6 | 37-7 |5-9 | 6-2 |5-0 | 29 | 30:—:—] 2-5 Id. 3 601 | 42-7 | 37-4 |5-3 || 7-7 |5-1 | 29 ||30:—:—|| 5-0 || Cirro-stratous scud. 4) 659 | 41-9 | 36-7 | 5-2 |/5-1 | 4-2 | 28 |}30:—:—| 4.0 Td. 5|| 712 | 40-7 | 36-4 |4-3 || 5-7 |3-6 | 30 | 30:—:—} 7.0 Id. 6 755 ||40-9 | 36-3 |4-6 || 4-2 |4-1 | 29 7-5 || Scud. 7|| 796 | 40-4 | 36.6 |3-8 | 3-3 | 1-5 | 28 || 10-0 | Id. 8] 842 | 40-2 | 36-6 |3-6 || 2-3 |1-2 | 29 |/31:—:—] 9-8 || Id. 4 9|| 878 | 40-1 | 36-4 |3-7 || 2-6 | 1-1 | 30 |} 31:—:—] 9-9 | Id. 10 917 || 37-4 | 34-6 | 2-8 || 1-5 |0-5 | 31 2-0 || Seud and cirro-stratus on horizon. 11 951 | 37-7 | 34-1 |3-6 || 1-3 |0-4 | 29 1-0 Id. 12 | 29-954 || 37-9 | 34-0 |3-9 || 1-8 | 1-6 | 29 || 1-0 || Scud and cirro-strati on E. horizon. 13 | 30-004 | 37-9 | 34-2 | 3-7 || 1-4 | 1-5 | 30 1-5 || Seud and cirro-strati on E. horizon. 14|| 025 | 38-3 | 35-8 |2-5 || 1-0 |1-1 | 29 ||—: 1:—J| 7-0 || Cirro-cumulo-strati. 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. Th motions of the three strata of clouds, Sc, (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 2 Hourty METEOROLOGICAL OBSERVATIONS, DECEMBER 11—14, 1845. 265 = = a ee een ET me: THERMOMETERS. WIND. Clouds, 4 | BEBO: ae Se.:.-8.:Ci,|| Sky jem 3", Dry. | Wet. | Diff. tones in {Prom spe clouded. Species of Clouds and Meteorological Remarks. rom 14, |10™. in. C e > Ibs. | Ibs. | pt. || pt pt. pt. 0—10. 30-058 || 37-0 | 35-0 | 2-0 || 0-1 | 0-6 | 29 2-0 || Cirro-strati, cirri, and cirrous haze; small lunar cor. ) 081 || 37-2 | 34-2 |3-0 || 0:5 | 0-4 | 29 3-0 || As before; lunar hale. »)) 085 || 37-2 | 34-3 | 2-9 || 0-7 |0-8 | 30 3-0 Eds 5 id. > 108 || 37-5 | 34-7 | 2-8 || 0-9 |0-6 | 30 6-0 || Thick cirrous haze; lunar halo. ) 127 | 38-0 | 35-0 | 3-0 || 1-6 | 0-5 | 29 4-0 || Cirro-strati; thin cirrous haze over the sky. | 155 | 37-0 | 34-6 | 2-4 | 1-0 |0-7 | 29 7-0 || Cirstr. and cir. haze, slightly tinged with red toSE. | 174 ||.36-3 | 34-2 | 2-1 | 0-6 |0-3 | 30 || 4:—:30]| 5-02?]] Scud on horizon ; cirri and thin cirro-strati. 184 || 37-0 | 34-6 |2-4 | 0-5 |0-2 | 29 || 0:—:31] 80 |, Ilys id. 23 203 | 38-0 | 35-6 | 2-4 || 0-5 | 0-5 | 29 1:—:—j| 9-5 || Scud; cirro-strati, cirri, and cirrous haze. 2 0 215 || 39-0 | 36-3 | 2-7 || 0-4 |0-2 | 29 || 0:31:—/|| 9-8 || As before; portion of a solar halo. i mn 219 | 39-2 | 36-6 | 2-6 || 0-3 |0-1 | 28 || 2:—:—|| 9-5 || Loose cum. and scud to E.; cirro-strati and cir. haze. 2 236 || 39-0 | 36-3 | 2-7 ||0-2 |0-2 | 29 || 2: 0: O|] 7:0 1 Be cirro-strati and cirri. © oa 251 || 37-3 | 35-0 | 2-3 || 0-2 |0-1 | 30 2-0 || Cum.-str. and cir.-str. on E.and §. hor.; patches of cirri. © 4 252 || 36-5 | 34-4 |2-1 ||0-1 |0-1 | 29 ; 2-0 || Large cumulo-strati on E. horizon ; patches of cirri. 5 261 || 35-4 | 33-5 | 1-9 || 0-1 |0-0 | 28 0-8 Id. ; slight haze. »)) 6 270 || 33-3 | 32-0 | 1-3 | 0-1 |0-1 | 26 1-0 || Cirri and cirrous haze to E. »)) az 272 || 31-7 | 30-7 | 1-0 || 0-1 | 0-1 | 22 0-2 Id. yp j 8 273 || 31-2 | 30-2 |1-0 || 0-1 |0-1 | 20 0-2 Id. di 9 275 || 31-5 | 30-2 |1-3 0-1 |0-1 | 12 0-1 || Cirrous haze on horizon. ») 10 278 || 27-6 | 27-0 | 0-6 || 0-0 |0-1 | 16 - 0-1 Id. d} 1 284 || 26-7 | 26-6 | --- ||0-:0 |0-0 | 18 0-0 || Rather hazy on H. horizon ; faint corona. ») 278 || 25-3 | 25-8 0-0 | 0-0 | 18 0-0 dss very faint corona. ») { || 30-273 || 24-6 | 25-0 | --- || 0-0 | 0-0 | 20 0-0 || Rather hazy on E. horizon; very faint corona. y i 261 || 25-5 | 25-5 | --. ||0-0 |0-0 | 20 0-2 || Cirri? to E.; very faint corona. yD} 257 || 24-5 | 24-5 | --- ||0-0 |0-0 | 18 0-0 || Very clear; thick hoar-frost; very faint corbna. ») \ 238 || 25-5 | 25-0 |0-5 || 0-0 |0-0 | 18 0-0 Id. ; id. y} 229 || 22-8 | 22.8 | ... 10-0 |0-0 | 18 1-0 || Sheet of thin cirrus to W. ; id. y 229 || 24.3 | 23-6 |0-7 ||0-0 |0-0 | 18 1:0 || Thin cirri, radiating from NW. ; id. y 214 || 24-4 | 24-1 |0-3 || 0-0 |0-0 | 18 1:0 || As before; part of a lunar halo. y 207 || 25-2 | 24-8 | 0-4 ||0-0 |0-0 | 18 7-0 || Cirro-cumulo-strati, cirro-strati, and cirri. a 210 || 25-0 | 24-7 |0.3 || 0-0 | 0-0 | 16 4-0 || Cirro-strati; cirri. 213 || 29.9 | 29-3 | 0-6 || 0-0 | 0-0 | 18 || —:28:— 9-5 td id. 208 || 33-4 | 32-0 | 1-4 || 0-0 |0-0 | 20 || — :28: — 9-5 Td. ; id. @ 199 || 34-4 | 32-4 |2-0 ||0-1 |0-1 | 21 || —:—:30 7-0 || Woolly and mottled cirri; cirro-strati. (0) 184 || 36-0 | 34-5 | 1-5 || 0-0 | 0-0 6 || —:28:—]| 9-0 || Cirro-stratous scud ; linear cirri. 173 || 35-3 | 34-2 | 1-1 || 0-0 | 0-0 | 20 3-0 || Cirro-cumulo-strati, cirro-strati, and cirri. eS 161 | 36-4 | 34-7 | 1-7 || 0-1 |0-1 | 20 1-0 || Cirro-strati and cirri round horizon. 0} 152 || 35-2 | 33-8 | 1-4 |10-1 |0-0 | 20 2-0 || Cirro-strati; clouds tinged red. | 160 || 33-3 | 32-3 | 1-0 ||0-0 |0-0 | 18 ||—: 0:—J| 9-5 || Cirro-stratous scud; cirri and cirrous haze. 168 || 33-7 | 32-7 | 1-0 || 0-1 |0-0 9-5 Te Be cirro-cumulo-stratus. 146 || 32-1 | 32-6 | --- || 0-0 | 0-0 —: l:— 4-0 || Cirro-cumuli. } 155 || 31-0 | 30-6 | 0-4 {| 0-0 | 0-0 | 22 0-8 Id.; _cirrous streaks. ») 141 || 28-1 | 28-3 | .-. || 0-0 |0-0 | 22 0-2 || Patches of cirri. y 142 | 26-9 | 26-6 | 0-3 || 0-0 |0-0 | 22 0-0 || Very clear ; milky light (?) to N. ») 128 | 26-9 | 26-7 | 0-2 || 0-0 |0-0 | 22 0-0 Id. y 30-130 || 25-2 | 24-9 |0-3 || 0-0 | 0-0 | 16 0-2 ds streaks of cloud te NW. y 4) 29-809 || 40-9 | 40-0 | 0-9 || 0-6 |0-6 | 22 ||91:—-:—|| -.--.- Loose scud ; dense homogeneous cirro-stratus. 29-250. || 47-2 | 46-0 | 1-2 15-8 | 1-9 | 20 10-0 || Scud and cirro-strati; rain! _ 223 | 48-2 |46-7 | 1-5 || 1-5 |0-6 | 19 10-0 | Id. ; rain”? 234 || 48-0 | 45-0 |3-0 || 2-3 |1-1 | 24 || 26:—-:—]| 10-0 || Scud; dense mass of cirro-stratus. ) 252 || 46-4 | 43-0 | 3-4 || 1-6 |1-6 | 23 || 26:—:—|| 10-0 | Id.; id. { 263 | 44-7 | 41-0 |3-7 | 2-1 |1-6 | 25 | 27:—:—)|| 10-0 | Ia.; id. y 280 || 42-7 | 39-0 |3-7 3-0 |1-0 | 24 ||a7:—:—]] 9.8 Id. ; cir.-cum.-str. rad. from WNW. ;cir.-str.; lun. cor. }- 287 || 42-8 | 38-7 | 4-1 || 2-7 |2-0 | 24 7-0 || Cirro-cumulo-strati; cirro-strati. } 301 141-0 | 37-7 |3-3 12-1 |0-8 | 24 6-0 || Woolly cirri; cirro-strati. } 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 the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. . 13846, Observation made at 64 5™, Soret ae sence ese 266 Hovrty METEOROLOGICAL OBSERVATIONS, DECEMBER 14—17, 1845. THERMOMETERS. WIND. Clouds Gott. SE ; Maximum | Se. :C.-s. Gu, Sky ‘ . eon ae “asad ed tie rane _ Rad movin g ||clouded. Species of Clouds and Meteorological Remarks. 1, ) 10m, ae a in. ° ° © || bs. | Ibs. | pt. |] pt. pt. pt. || 0-10, 1 14 21 || 29-332 |) 41-8 | 37-1 | 4-7 || 2-4 | 1-4 | 24 | 26:—:—|| 2-0 || Scud on hor. ; woolly cir. lying from WNW. to ESE., | 22 345 || 40-9 | 36-9 | 4-0 || 2-0 | 1-4 | 24 | 26:—:—] 1-5 || Loose seud; cirro-stratii © [barred across, y 23 357 || 41-2 | 37-8 | 3-4 || 1-9 | 1-3 | 22 1-0 Id. ; id. 15 0 || 355 || 43-6 |38-9 |4.7 ||2.4 |2-1 | 24 }25:—:—|| 92.5 | Scud; bandaotate! toSW.,lying from WNW. to ESE. O| 1 | 350 || 43-6 | 38-8 |4-8 || 3-4 | 2-2 | 24 ||25:—:—|| 2.0 Patches of scud ; id. 0} 2 329 || 43-6 | 39-4 |4-2 || 2-1 |0-6 | 24 || 25:—:—|| 2.5 Tales id. =) 3 319 | 40-6 | 38-5 | 2-1 || 3.3 | 2-8 | 24 || 25:—:26|| 3-0 | Scud; cirrias before; shower” at 2h 30™, s) 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.; shower” 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 bands. | 6 | 330 | 41-8 | 38-4 | 3-4 | 3.3 | 2-2 | 24 3-0 | Scud and cirro-stratus ; ; drops of rain. 7 329 || 41-8 | 39-0 | 2-8 || 3-7 |3-0 | 24 5-0 Id. ; rain”; part of a lunar rainbow. ) 8 320 || 42-3 | 39-0 | 3-3 || 2-2 |1-8 | 23 | 297:—:— 2-0 | Loose cumali. »)} 9 || 316 | 41-9 | 39-0 | 2.9 || 2.7 | 1-6 | 25 || 27:—:—|| 3-0 || Loose scud; cirro-strati and cirri. ) 10 || 310 |/41-9 | 38-7 |3-2 | 2.3 | 1-1 | 25 3-0 1G linear cir., rad. from SE. ; coloured cor. ) ll 306 || 42-7 | 39-0 |3-7 ||2-7 |3-2 | 23 9-5 || Seud on hor. ; woolly cirri, rad. from about SE. ; lunar 12 | 303 || 43-3 | 39-6 | 3-7 | 2-0 |1-7 | 24 | 26:—:—|| 9.2 | Scud; cirri nearly as before; lunar cor. } _[halo.} 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 ceca 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 1G Be id. 17 || 210 || 44-1 [40-7 |3-4 | 3-6 | 2-6 | 24 10-0 || Seud ; cirri becoming thicker ; corona ; drops of rain. } 18 202 | 43-3 | 39-8 |3-5 || 3-7 |2-7 | 24 10-0 || Id.; id. ; id. ; id. ) 19 || 207 ||42-8 | 39-3 |3-5 || 2-6 | 2-2 | 24 9-5 || Thick woolly cirri. } [scud ; rain 20 228 || 42-2 | 39-0 |3-2 ||3-4 | 3-2 | 24 9-8 Id. and cir.-str., rad. from ESE. ; loose 21 | 256 |/41-7 | 37-6 |4-1 || 3-8 | 2-3 | 26 9-5 || Thick ribbed and dappled cirro-stratus. 22 || 274 1141-3 |37-2 |4-1 | 2-6 | 2-5 | 26 ||_-:97:— || 9.0 Id. ; patches of seud. 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. on E. hor, 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. 1 || 337 }/41-6 |36-8 |4-8 |} 2-3 | 1-1 | 24 || :—:27]) 8.0 || Reticulated, &c. cir., rad. from NW by W. and SE by E. cum.-str, 2 336 ||41-6 | 37-0 |4-6 || 2-2 |1-3 | 24 || _-—-97 8-0 As before. @ lon E. hor,; patches of scud. 3 || 338 | 40-7 |36-7 | 4-0 || 2-1 |1-4 | 24 || _-: _:27]| 7.5 || Id.; cirri more broken; dappled cirro-strati. @ 4 | 340 || 40-4 | 36-5 | 3-9 || 2-1 | 1-8 | 24 || —-: —: 97 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. andSE by E.) __ [halo. } 9 401 || 38-2 | 34-8 |3-4 || 1-8 |0-8 | 26 2-0 || Patches of scud ; thin cirri; lunar cor. and portion of a 10 414 || 37-0 | 34-2 |2-8 || 0-9 |1-2 | 25 1-0 | Spotted woolly cirri, with corona; halo and paraselene. } 11 423 || 35-7 | 33-3 | 2-4 || 1-3 |1-0 | 28 0-5 | Cirri and cir. haze on hor. ; very faint lunar corona. )} 12 459 || 34-3 | 32-2 |2-1 11-0 |0-0 | 20 |}: 99: — 1-0 || Sheets of cirro-stratous scud ; very thin cirrous haze, ) 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 cir. J 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. 17 || 536 || 28-3 | 26-7 |1-6 || 0-0 |0-0 | 18 3-0 || Woolly and mottled cirri ; a diffuse lunar corona. 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 || Id. ; thicker to W.; sky to E. 21 | 548 || 29-3 | 28-3 | 1-0 | 0-0 |0-0 | 18 | —:27:—]| 9.0 ind $3 clouds tinged red to E. ) 22 552 || 30-2 | 28-8 | 1-4 0-0 |0-0 | 18 9.8 Jir.-str.,rad. from NW by W. and SE by E.; cir. mass. 23 548 || 31-3 | 29-9 | 1-4 | 0-1 |0-0 | 23 9-8 || Cirro-strati and cirrous haze ; solar halo. 17 0 536 || 32.2 | 30-7 | 1-5 || 0-0 | 0-0 7 || —:26:— 9-5 Ks id. 1 | 516 || 32-7 | 31-2 | 1-5 || 0-0 |0-0 | 28 || —:26:—|| 8-0 | Woolly and mottled cirri ; cir.-str., rad. from WNY 2|| 505 || 35-6 |33.0 | 2-6 ||0.0 |0.0 | 28 ||__: 26: —||_ 8.0 | As before. (0) [and ENE. 3 || 483 ||34-7 | 32.7 | 2.0 |/0.0 |0-0 = 265 —— ll 18-0 Id.; stratus on horizon. 0} 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, E. = 8, 8.= 16, W.= 24, The — i motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. ! Dee, 164 45, The cirri sone ale from NW by W.; the cirri do not seem to extend far towards the NE., as they terminate abruptly y to NE., at an altitude of about 20°; this has been the case all day. Dec. 164 19. Observation made at 19» 10™, HlourLY METEOROLOGICAL OBSERVATIONS, DECEMBER 17—19, 1845. 267 THERMOMETERS. WIND. Clouds, ) a . Sc. :C.-s.: Ci., P ’ 220) |e see cnaia Lat moving _|{clou Aa Fi Species of Clouds and Meteorological Remarks. 14, )10™, pcs = G ° Ybs. | Ibs. | pt. || pt. pt. pt.|/ 0-20. | 30-9 | 29-6 | 1-3 ||0-0 |0-0 | 2 10-0 || Cirro-cumulo-strati; cirrous haze ; foggy to E. 29-8 | 28-6 | 1-2 || 0-0 | 0-0 2 7-0 || Cirro-strati; cirrous haze over the sky. 27-0 | 26-6 | 0-4 || 0-0 | 0-0 | 16 3-0 || Cirrous haze. 26-1 | 26-4 | ... || 0-0 | 0-0 3-0 Id. 28-3 | 27-9 | 0-4 || 0-0 | 0-0 10-0 || Cirro-strati and cirrous haze. } 30-0 | 28-8 | 1-2 || 0-0 | 0-0 2 10-0 || Scud and cirro-stratus. 29-2 | 28-6 |0-6 || 0-1 |0-0 | 10 10-0 Td. dense cirrous haze. 28-9 | 28-2 |0-7 ||0-0 |0-0 | 12 10-0 Id. ; id. 30-5 | 29-6 | 0-9 | 0-0 | 0-0 6 10-0 || Scud and cirro-stratus; fine flakes of snow. 30-3 | 30-0 | 0-3 || 0-0 | 0-0 4 10-0 Id. ; snow! 32-0 | 31-8 |0-2 0:0 |0-0 | 4 10-0 labs id. 33-0 | 32-5 |0-5 0-0 |0-0 | 2 10-0 IiGk id. 33-7 | 33-4 |0-3 |/0-3 |0-4 | 2 10-0 || Homogeneous mass ; sleet. 34-8 | 34-2 |0-6 ||0-9 | 0-6 2 10-0 ike id. ) 34-6 | 33-9 |0-7 || 0-6 | 0-4 3 10-0 || Sleet! 34-3 | 33-6 | 0-7 || 0-4 | 0-2 2 10-0 || Sleet®2 35-5 |34-4 }1-1 |/0-3 |0-3 | 2 || 4:—:—|| 10-0 | Homogeneous mass of scud ; rain”? 35-5 |34.4 | 1-1 || 0-5 | 0-4 0 3:—:—|| 10-0 Id. ; id. 35-8 | 34-7 | 1-1 || 0-8 | 0-6 0 || 3:—:—]| 9-8 || Clouds broken up; scud; cirro-cumuli and cir.-str. 0 36-0 | 34-9 | 1-1 || 0-6 | 0-1 2 4:—-:—]|| 10-0 || Patches of scud; cir.-cum.-str., the motion scarcely perceptible. oll 36-1 | 35-0 | 1-1 || 0-2 | 0-1 1 || 4:20:—|| 6-0 || Cirro-stratous scud on horizon ; id. (>) 2 36-1 | 34-9 | 1-2 || 0-2 |0-1 0 2-5 Id. ; cirro-cumuli. (0) 63 36-0 | 34-6 |1-4 ||0-6 |0-5 | 31 || 3:—:—J]] 4-0 || Scud and loose cumuli; cirro-strati. (2) & 4 35-0 | 34-2 |0-8 ||/0-9 |0-2 | 31 3:—:— 9.5 || Scud; cirro-stratous scud; rain” Ay 34-8 | 33-1 | 1-7 ||0-5 |0-4 | 0 9-7 || Id.; id. —~6 31-8 | 30-2 | 1-6 || 0-2 | 0-1 2 1-0 || Cloud and haze on horizon. eT 28-8 | 28-4 | 0-4 ||0-1 |0-1 | 17 1.0 Id. 8 29-2 |27-8 | 1-4 ||0-1 |0-1 | 19 1-0 Id 9 26-2 | 26-0 |0-2 |/0-1 |0-1 | 20 2-0 Id. 10 27-3 | 27-1 |0-2 |/0-1 | 0-1 | 18 6-0 || Cirro-stratus and haze. >} 27-4 | 26-9 | 0-5 ||0-0 | 0-0 | 22 10-0 || Mass of cir.-str. and cir. haze; a few stars dimly visible. ) 27-3 | 27-0 | 0-3 ||0-0 | 0-0 | 20 10-0 Ths id. ) 28-3 | 27-6 |0-7 ||0-0 |0-0 | 18 10-0 || Mass of cirro-stratus, denser; moon scarcely visible. ) 29-2 | 28-5 |0-7 ||0-0 |0-0 | 18 10-0 Id., id. [about 15" 15™. 31-1 | 30-0 | 1-1 ||0-0 |0-0 | 18 10-0 Id., id.; commenced snowing 31-8 | 31-0 | 0-8 || 0-2 |0-3 | 16 10-0 || Homogeneous mass of clouds. 31-4 |30-5 | 0-9 || 0.4 |0.2 | 18 || —: 24:—]] 10-0 || Cirro-stratous seud (?) moving rather quickly ; cir.-str. ; 34-8 | 32-7 |2-1 || 2-1 |2-1 | 18 10-0 || Homogeneous mass. [clouds broken. ) 34-7 |33-7 | 1-0 || 2-0 |1-6 | 17 10-0 Id. 35-3 | 34-4 | 0-9 || 2-1 | 1-4 | 16 || 22:—:—|] 10-0 || Scud; cirro-strati seen through break to S. ) 37-4 | 36-6 |0-8 || 2-5 |1-9 | 18 || 20:—:—|| 10-0 Id.; dense homogeneous cirro-stratus. 38-5 |37-9 |0-6 || 1-7 |0-6 | 18 || 20:24: — 9-9 He id. 40-7 | 39-2 | 1-5 || 1-7 |0-4 | 21 ||20:24:—|| 9-7 || Loose scud; cirro-stratous seud ; cir.-str. ; sky to NW. 41-2 |38-3 | 2-9 ||0-9 |0-6 | 22 || —:25:—|| 4-0 |! Loose cirro-strati; cirro-strati and cirrous haze. (0) 40-3 | 37-3 | 3-0 || 0-6 |0-5 | 21 || —:25:—|| 4-0 Id.\; id. (0) 41-0 | 37-0 |4-0 || 1-0 |0-8 | 20 1-0 || Cirro-strati; haze and patches of seud round hor. © 39-7 | 36-7 |3-0 ||0-3 | 0-4 | 20 2-0 Td. oO [cirrous haze. 38-2 |35-9 |2-3 || 1-1 |0-8 | 20 || 24:—:—|| 3-5 | Thick scud rising to W.; cir.-cum.-str.; woolly cirri ; 35-9 |34-4 | 1-5 || 1-1 |0-3 | 19 || —:24:— 3-5 || Loose cirro-strati and cirro-cumulo-strati; cirro-strati. 35-4 | 33-9 |1-5 || 0-7 |0-4 | 19 0-5 Id. 35-7 | 34-5 | 1-2 || 0-9 | 0-4 | 20 0:8 Id. 35-7 | 34-5 |1-2 ||0-5 | 0-7 | 19 5-0 || Cirro-stratous scud? drops of rain. 36-9 | 35-4 | 1-5 || 1-6 | 1-1 | 19 0-5 Id.?; shooting-star from y to 6 Urse Majoris. 37-1 | 35-4 | 1-7 || 2-0 | 1-0 | 19 2-0 Id.; drops of rain. 36-7 | 35-2 |1-5 || 1-2 |0-7 | 18 2-5 || Seud and cirro-stratus. j 35-5 | 34-1 | 1-4 ||0-7 10-6 | 19 2-0 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. The | Motions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. f ec. 184175 11. Wind commenced blowing 0°8 lb., barometer 28-925. 17 40™. Wind blowing 2:0 lb., barometer 28-876. 19» 30™. Wind blowing 1:6 Ib., barometer 28°735. 20 30m, Wind blowing 2°65 1b., barometer 28647. 214 30™. Barometer 28°581. i ER A SE A RR SR SE SS | 072 | 29.439 | 364 570 | 28-601 639 661 689 fe! Vi eOe Hovurty METEOROLOGICAL OBSERVATIONS, DECEMBER 19—22, 1845. THERMOMETERS. WIND. Dry. 33-5 35-0 33-4 35-0 34:3 33-7 34-0 35-4 36-0 35-9 35-2 36-6 37-8 37-1 36-8 37-2 [37-3 37-2 37-3 35-2 | 35-8 37-8 39-3 Wet. 34.9 35:3 37-1 36-7 35-7 36-4 29-3 31:8 32-7 33-2 33-8 34.3 35-0 36-0 37-1 38-1 41:3 41-3 39-7 39.4 39:2 38.2 37-4 35-6 35-2 35-5 34:3 34-2 34-1 34-4 34-3 34-1 34-1 34-4 35-7 36:3 z g ie NDS ae es Oe Sh OhwWARODONE YT 2-2 BanHKahotnwanwwe wwwwwwds Bee ee ee Maximum force in J, 10™, Clouds, Se. moving pt. Soe 3 al — i) from pt. 2:28: 128%: | |roel wl I | elt | pt. :C.-s.:Ci.,| Sky clouded, || Scud. ; cirro-strati. RE Te rE Species of Clouds and Meteorological Remarks. Seud and cirro-stratus. Dd Td. Id. »)) Seud ;, cirro-cumulo-strati. di Id. ; id. } Id. ; id. >} Id. ; id. Id. ; id. ; faint corona. »)) Id.; cirro-strati. Cirro-stratous scud ; cirro-strati; clouds broken. Id. ; id. ; woolly cirri to W. Id. ; woolly cirro-cumuli, Loose cirro-strati; cirro-strati ; woolly cirri. (0) Loose and cirro-stratous scud ; woolly cirri. @ Id. Cirro-strati and cirro-cumulo-strati. Scud and cirro-strati. Rain. Id. Dark ; drops of rain. Id. Td. Id. Masses of scud and loose cum,; a slight sprinkling of dry, powdery isnow ; Cheviot is quite white, Cirro-stratus ; stars dimly visible in zenith. Id. ? slight fall of snow since last hour. Id. ? drops of rain. Id.? rain?” Scud ; cirro-stratus ? rain”? Id. ; id. ; id. Id.; sheets of cirro-strati. Ids; id. ; Woolly cirri; cirro-strati. Cumulo-strati and cirro-strati round horizon. © ‘ Td. © Scud moving rapidly ; loose cirro-strati. Cirro-stratous scud. Scud and cirro-strati on horizon. Cirro-strati on horizon. | Thin cirro-stratus ; stars seen dimly through most of it. | Clear. Id. Id. Seud on E. horizon. Id. mass of cirro-stratus. Seud. Thin scud ; slight showers lately. Rain? Seud. Thick seud. + 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. (cirrostratus), and Ci. (cirrus), are indicated in a similar manner. NRE SS Hovurty METEOROLOGICAL OBSERVATIONS, DECEMBER 22—25, 1845. 269 | THERMOMETERS, WInD. ; Sk ileeseeler Ndee Species of Clouds and Meteorological Remarks. Dry. | Wet. | Diff.| force iD [From 36-7 5 : . . 2 . Shower! of rain and hail. 38-0 “ . . : | . Scud on horizon. 38-3 39-7 40-5 41-6 42-7 42.7 42.4 42-5 41-0 : 40-8 : : 3 Send ; cirro-stratus. 41-5 . 5 . . : Id. ; id. 40-7 3 A x = Fi Td. 39-6 4 s a le e Id. 40-0 F : b ‘ i Td. 38-9 5 « ; : . Id. 37-6 : . . . : Id. on horizon. 36-9 A F : : ‘ Td. 36-1 : . . “ o Scud. 35:8 : f : ; x Id. 35-3 A ‘ H A Td. 34:0 . H : : . Clouds on E. horizon. 32-8 4 Fi i i 2 B Id. 30-5 “ : A : . Clear. 28-3 , F ‘ i t Td. 29-2 : . . Fi : Thin cirri and cirrous haze; lunar corona. 28-6 . : : 5 foes . Orange-coloured woolly and linear cir, radiating from NNE. and SSW. 31-0 E . : : i—?: : Woolly cir, and cir. haze radiating from N by E. and 32.7 130-9 11-8 ||0-2 |0- qaue -5 || As before. (s) [S by W. 34-6 “1 | 2-5 || 0- E . Cirro-strati and cirrous haze ; traces of a solar halo. © 36-9 . . 5 : : Id. ; id. 3) 37-0 . 5 - : - As before, clouds becoming thicker. 37-7 : . : : :30: : Cirro-strati; cirro-cumulo-strati and cirrous haze. 38.0 : : : : TO = . As before. 39.3 : | . 5 : . Patches of scud to S. ; cir.-str. in dense irregular masses. 40-8 . . . - - 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 scud ; cirro-strati; cirrous haze. ) Cir.-cum. radiating from WSW.; woolly and linear cirri from SW. ; Various cirri; cirro-strati. @__ [seud on horizon. Id. ; id. 124 D Id. ; id. 124 : Id. ; cirrous haze. w colo cirro-strati. : id. Loose cirro-strati; loose scud and cirro-strati. Scud and cirro-strati ; cumulo-strati. passing showers. ee =) wo HORE SB EE Bee eee SPE BROWNM HPHRWHR OD wOhAeKoOwmwm PHORS = ooorro- el Ut le 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 otions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Dec, 284 215, Sky of a beautifully-green colour to SE. 270 Hovurty METEOROLOGICAL OBSERVATIONS, DECEMBER 25—27, 1845. THERMOMETERS. | WIND. )SE Sosa Tes Maximum \ Species of Clouds and Meteorological Remarks. force in é 2g iD Masses of loose cumuli; thin cirri. Id. ; id. Patches of scud ; mottled cirri and small cirro-cumuli. Td: beautifully-mottled and lin. cir., lying Seud. [N. and §. ; cir.-str ld.; cirro-strati. : Thin cirrous clouds and cirro-strati. Cirro-stratus and cirrous haze. sky very hazy. Thick cirro-stratus. Td. Id. Cirro-strati. Dark. wae drops of rain. rain?” ; drifting rain! or id. ; mass of cirro-stratus ; rain? ; eirro-cumulo-strati ; cirro-strati. 3 id. ; rain”? Loose smoky scud ; cirro-strati; sky looking wild. Scud on horizon. Id. Id. (off soon ; a flash of lightning to Very dark; shower lately, with heavy gusts of wind; clouds clear Seud; rain? at 105 55™. Scud and cirro-strati. WWW HH EE EEE BR OON FEE HOS SH OORS NE www AUMSOWOaADRARDYVOSHOHMVONNUSY YOHKCHROHUHOH YA RD we eID Oe SR ONTO AWAWH& ws Scud and cirro-strati. Id. Td. Id. ; drops of rain. Id.; rain”? Seud ; rain! Snow! Scud and cirro-strati. Gyr snow! Loose scud ; cirro-strati; snow'”? Loose nimbi and seud ; cir.-str. ; cirri ; passing showe Thin cirro-strati and cirrous haze. © [of snoy Masses of seud ; cirro-stratus — cirrous haze. ) becoming thicke Fh Nr WW Thick ecadi; rain!” IGE rain?—3 Id. ; rain? ; very stormy. : : 5 : Seud; rain”? ; id. 46-0 | 45-2 |0- . I. E Id.; rain! “gy 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. 064 075 29-067 057 16 053 16 025 17 || 29-006 28-998 973 956 960 937 904 900 885 886 893 4 | 28-945 29-166 6 269 Hovurty METEOROLOGICAL OBSERVATIONS, DECEMBER 27—30, 1845. THERMOMETERS. WIND. Maximum Dry. | Wet. | Dift.|| force in [From 14, |10™. 2 2 Ls lbs. | Ibs. pt. 48-2 | 47-0 | 1-2 || 4-7 |4-2 | 20 52-1 | 47-8 | 4-3 ||6-9 |7-6 | 21 49-6 | 44-6 | 5-0 || 5-7 | 3-3 | 22 35-7 |33-6 | 2-1 || 4-6 | 0-0 30-8 | 29-6 |1-2 ||0-3 |0-1 | 19 30-3 | 29-2 |1-1 ||0-2 |0-1 | 20 29-1 | 28-4 |0-7 ||0-2 |0-1 | 20 27-6 |27-6 | --- ||0-1 |0-0 | 30 29-6 | 29-1 |0-5 ||0-1 |0-1 | 17 29-9 | 29-5 |0-4 ||0-0 |0-0 | 20 33-2 |31-8 | 1-4 ||0-3 |0-2 | 20 35-2 | 32-7 |2-5 ||0-7 |0-3 | 19 35-6 | 33-8 | 1-8 ||0-6 |0-5 | 20 37-2 | 35-3 |1-9 || 1-2.)0-5 | 18 38-3 | 36-4 |1-9 || 1-1 |0-4 | 18 39-6 | 37-0 |2-6 ||0-7 |1-1 | 20 41-0 | 38-1 |2-9 || 2-2 | 1-1 | 20 39-4 | 38-3 | 1-1 || 1-3 |0-7 | 18 40-4 | 39-2 | 1-2 | 1-6 | 1-5 | 18 41-3 | 39-8 |1-5 || 1-8 |0-9 | 19 41-4 | 40-4 | 1-0 |) 2-2 }2-1 | 18 45-8 | 44-6 | 1-3 || 1-9 | 2-0 | 18 48-2 |46-7 |1-5 || 4-8 |1-7 | 18 49-9 |48-6 | 1-3 || 3-0 |2-7 | 19 51-1 |49-4 | 1-7 || 3-1 | 1-6 | 20 50-4 | 49-0 | 1-4 || 3-2 | 2-1 | 18 51-0 | 49-7 | 1-3 || 2-3 | 1-3 | 18 52-0 | 50-0 | 2-0 || 1-8 | 1-4 | 20 51-6 | 49-9 | 1-7 || 1-6 | 2-3 | 20 51-3 |49-8 | 1-5 || 3-5 | 2-0 | 19 52:3 | 51-2 | 1-1 | 3-6 | 2-2 | 18 51-3 | 49-7 | 1-6 || 6-0 | 3-0 | 18 51-9 | 49-8 | 2-1 |) 3-5 | 2-8 | 19 51-7 | 48-5 |3-2 || 3-1 | 2-0 | 19 49-9 | 48-6 | 1-3 || 3-4 | 2-2 | 20 49-4 | 46-3 |3-1 || 2-8 |2-5 | 19 49-9 | 47-1 |2-8 | 4-8 |3-1 | 20 49-5 |45-6 |3-9 || 4-7 | 2-2 | 20 49-0 | 46-1 |2-9 ||3-9 | 3-4 | 19 47-2 | 45-3 |1-9 || 4-2 |1-9 | 19 47-5 |46-7 |0-8 |/3-7 |4-2 | 19 48-3 | 45-7 | 2-6 ||3-7 |1-9 | 20 47-6 |45-5 | 2-1 || 1-4 }0-4 | 19 48-0 | 44-8 | 3-2 || 2-0 |6-5 | 28 42-2 |38-9 |3-3 ||4-8 |0-8 | 28 42.6 | 39-7 | 2-9 || 1-3 | 2-5 | 28 38-8 | 34-4 | 4-4 || 2.3 | 1-8 | 26 37-7 |33-2 14-5 |] 1-8 |2-0 | 26 36-0 | 32-0 |4-0 || 1-0 |0-2 | 25 35-6 | 31-4 | 4-2 |10-3 | 0-2 33-4 | 30-3 | 3-1 || 0-2 |0-1 | 19 34-3 | 30-7 |3-6 ||0-5 | 0-5 | 21 32-7 | 30-2 | 2-5 ||0-5 |0-1 | 21 33-0 | 30-7 | 2-3 || 0-3 |0-4 | 18 35-8 | 32-7 |3-1 || 1-3 |0-9 | 18 Clouds, Se. : C.-s.:Ci., moving pt. from pt. pt. ieletel Sky clouded, | 2-0 271 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. Td. 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. Scud ; 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! Td. ; id. Id. ; id. Id.; id. Id. Id Stars indistinctly visible. Scud and cirro-stratus ; drops of rain. Id. ; id. Id. ; rain? Id. Scud and cirro-stratus ; drops of rain. Id. ; rain! Id. Td. stars dim. Id. ; id.; rain”? Id Rain”; a few stars occasionally visible. Scud and cirro-strati on horizon. Cirro-stratous and loose scud ; cirrous haze. Seud ; cirro-strati; rain!—? Seud and nimbi. Scud and loose nimbi; passing showers. Seud ; cirro-strati and loose nimbi; rain"? Id.; drops of rain. Id. ; id. Thick seud ; rain! Scud ; cirro-strati; cirro-cumulo-strati. y Id.; rain! Id. Id. Scud on E. horizon. Td. Hazy on horizon. Id. Hazy on horizon. Cirro-strati to E. and N. Td. Barometer 28°879. = 24, The The wind commenced to blow violently at 4» 0™, and changed its direction about the same time; the barometer rising 272 Hourty METEOROLOGICAL OBSERVATIONS, DECEMBER 30—31, 1845. THERMOMETERS. WIND. Slt BAROS Maxi \Sc. a Sky a — eee ee an ae vin gg ||clouded. Species of Clouds and Meteorological Remarks. 14, | 10™, 7 a. h. in. ° ° ° || rps. | Ibs. | pt. |] pt. pt pt. || 0—10. 30 16 || 29-605 || 35-9 |34-0 | 1-9 || 1-3 | 0-4 | 18 1-2 || Cirro-strati to E. and N. 17 612 ||37-2 | 35-2 |2-0 || 1-0 | 0-8 | 20 1-0 i 18 626 || 37-2 | 35-1 | 2-1 || 1-1 |0-2 | 20 3-0 || Loose cirro-strati. 19|| 638 || 36-2 | 34-7 | 1-5 || 0-7 |0-6 | 18 2-0 || Cloud radiating from SE. 20 636 || 37-4 | 34-0 | 3-4 | 1-3 | 0-8 | 19 5-0 || Seud and cirro-strati ; cirrous haze ; clouds tinged red. 21 617 || 38-3 | 36-5 | 1-8 || 0-6 |0-6 | 20 8-0 || Cirro-strati, cirro-cumulo-strati, sai cirrous haze. 22 613 || 38-4 | 36-8 | 1-6 || 0-8 |0-3 | 20 | 20: 25:—|| 10-0 || Loose scud ; seud; cirro-strati; mass of cirro-stratus. 23 605 ||39-3 | 37-7 | 1-6 || 0-4 |0-2 | 19 | 20:—:—|| 10-0 || Seud; cirro-strati ; mass of cirro-stratus. 31 0 546 || 41-9 | 39-7 | 2.2 | 0-2 |0-5 | 20 | 20:26:—}) 9-9 || Id.; cirro-cumulo-strati; cirro-strati. 1 480 || 43-3 | 40-5 |2-8 || 0-7 | 0-8 | 20 | 20: —:—|| 10-0 Id.; cirro-strati; mass of cirro-stratus. 2 420 || 43-2 | 40-4 }2-8 || 1-6 |1-8 | 18 19: —:—] 10.0 || Ia; id.; id. ie 3 366 || 42-6 | 40-0 |2-6 | 1-7 |0-6 | 19 |, 19:—:—} 10-0 || Id; id. ; id. 4 290 || 42-3 | 39-6 | 2-7 || 1-4 |0-8 | 18 | 19:—:—|| 10-0 |] Id.; id. ; id. ; rain"? 5 213 || 40-7 | 39-3 | 1-4 || 1-8 |1-7 | 18 10-0 Id. ; id. ; rain! 6 136 || 40-1 | 38-6 | 1-5 || 0-5 | 0-4 | 18 10-0 || Id.; id. 7 071 || 41-2 | 39-4 | 1-8 || 0-5 | 0-4 | 19 10-0 Id. ; id. 8 || 29.025 || 41-7 |40-5 | 1-2 || 0-2 |0-2 | 20 10-0 || Id.; id. 9 | 28-971 || 43-7 | 42-3 | 1-4 |/0-8 |0-5 | 19 9-5 || Id.; id. ; drops of rain. 10 970 || 45-0 | 42-3 |2-7 | 1-1 |0.2 | 24 10-0 || Id.; id. 11 980 || 42-2 |38-8 |3-4 | 1-5 |0-3 | 23 2-0 Id. 12 982 || 41-5 | 38-0 | 3-5 |) 1-1 | 1-1 | 23 2-0 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. The motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. DAILY AND EXTRA METEOROLOGICAL OBSERVATIONS. MAKERSTOUN OBSERVATORY, 1845. "MAG. AND Mer. ops. 1845. 32 274 DAILY METEOROLOGICAL OBSERVATIONS, JANUARY—JUNE, 1845. | TEMPERATURE.| RADIATION. | Rainin|| TEMPERATURE.| RADIATION. | Rain in| TEMPERATURE.| RADIATION, Gauge ape ee |: [fey Min. | Max. | Min. | Max. |at Noon.|| Min. | Max. | Min. | Max. jat Noon.) Min. | Max. | Min. ° May. 45-4 39-2 COOnNaupwnyore TEMPERATURE. RADIATION. Min. 63-0 60-2 65-8 62-3 54-7 55:5 54-0 55-9 59-4 67-8 64-5 67-02 62-2 63-0 66-0 64-0 63-0 69-0 63-2 65-3 70-7 68-3 64:8 67-2 56-3 60-0 Min. | Max. 48-8 47-2 47-9 51-2 42:8 51-5 Rain in Gauge at Noon. Min. TEMPERATURE.| RADIATION. Max. in. Max. ° ° SEPTEMBER. 113-5 71-0 103-4 76-7 95-5 94-6 100-0 90-5 69-5 71-5 89-0 105-8 68-9 89-8 94.4 89.8 65-5 70-2 96-4 83-6 82-6 90-0 41-7 32-5 37-2 39-4 35-0 37:8 OcToBER. 34-7 40-5 42-2 40-0 25-0 23-7 37-5 31-8 35-4 32-2 Rain in Gauge at Noon. TEMPERATURE, RADIATION. Min. Max. Min. Max. Rain in Gauge at Noon, 20-5 19-6 28-8 40-2 42-5 41-5 36-4 28-0 DECEMBER. 31-8 bo SJ [=r] NOTES TO THE OBSERVATIONS OF THE SELF-REGISTERING THERMOMETERS. ExtTRA METEOROLOGICAL OBSERVATIONS, 1845. eee Jan. 4 23. The temperature has risen during the night, so that no minimum could be obtained; the maxi- mum given for Jan, 44 most probably occurred this morning (Jan. 52.) Jan. 11 The maximum temperature given occurred between 104 195 and 104 22, 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 tem- perature of 32° and of 20°, when the former read 0°1 less than the latter. A new coating of lamp-black varnish put over the minimum radiation bulb, which was afterwards roughened. Feb. 3 About 1°:5 of alcohol found detached in the minimum radiation thermometer ; the thermometer was adjusted Feb. 8) 45, and the observations previously were corrected for the induced index 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 accu- 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 joined the 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 esti- 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 coating having been nearly washed off by tbe rain. The maximum radiator was placed about 3 inches above — the surface of the soil, and a shade from the wind was placed round it: it has been 15 inches ; 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 near the top of the tube on May 5, and on May 6¢ 5) 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 2" was 66°4 by 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. 30 The mercury and index of the maximum thermometer adhere. Nov. 10 and 134, The index of the maximum thermometer has probably been adhering to the mereury. Dec. 25 The maximum radiating thermometer raised 18 inches above the soil, in order to allow the sun to shine more perfectly upon it. Dec. 30 1, The minimum thermometer was set at 193h, The maximum is that since Dec. 294 225, TEMPERATURE OF WATER IN PUMP WELLS. Géttingen Temperature of Water. Géttingen Temperature of Water. Giittingen Temperature of Waters ee Pump Wells. see Pump Wells. sige Pump Wells. Observations. || Cottage. Gate. Observations. Cottage. Garden. Observations. Cottage. Garden, ahh 4] ° h. 2 te ° oq Jan. 6 5 || 44-4 5 44-0 Sept. 15 5 49-6 49-7 13.5 | 44-1 5 44-6 22 5 49-7 49.7 — 20 5 43-7 5 44-8 29 5 49-7 50-0 27 «5 43-6 5 45-2 Oct. 6 5 49-6 49:8 Feb. 3 5 43-1 5 45-4 135 ooo 50-2 10 5 42-6 5 46-0 14 4 49-4 oo yD) 42-3 5 46-2 Dina, 49-1 50-2 24 5 42-3 5 46-6 27 «5 49-0 50-2 Mar. 3 5 42-1 oy 47-3 Nov. 4 5 49-0 50-0 10 5 42-0 5 47-5 10 5 48:3 49:8 Line 3 41-6 5 47-8 17 5 47-6 49.4 24 5 41-6 5 48-1 24 9 47-2 48.9 April 2 5 41-9 5 48-4 Dee. 1 5 47-0 49-0 if 42-2 5 48-7 8 5 46-2 48-5 14 5 42-5 5 49-0 15° 5 45:5 48-1 21 5 tee 5 49-1 22 5 45-0 47-3 28 5 43-1 5 49-4 31 5 44-6 47-7 | May 5 5 43.7 5 49-4 e | | i} of 32 33 111 23 38 40 41 - 42 44 45 46 48 49 ‘i Om. Extra METEOROLOGICAL OBSERVATIONS, 1845. ACTINOMETER. 277 Makerstoun | Mean Time Se. div. Shade. |Bepun.|Ended. Sc. div. In Sun | Observation. Change in 605. Se. div. Marcy, 11, 12. 25-4 29-0 28-2 31:8 28-7 32-1 31-5 17:7 20-1 29-0 28-2 31-9 30-8 32:3 31-5 35-0 33-5 36-2 34-6 37-1 35-5 38-8 16-8 15-9 18-9 17-9 20-6 19-4 22-1 20-7 23-7 22-4 25-3 23-8 12:7 11-7 14.3 13-4 16-2 15-6 18-4 17-6 20-1 19-2 22-0 21-2 26:3 25-1 15-6 14.4 17-0 16-1 18-9 18-1 20-3 19.4 +3-6 —0:8 +3-7 -1-0 + 3-6 —0-6 +3:5 —1-2 +3:3 -1-1 +2:5 —1-2 +3-3 +2-9 —0:8 +3-0 —0-8 +27 -0-9 +2-7 -1-1 +3-0 -0-9 +2.9 -1-1 4+2:5 -—0:9 +2-6 -0-7 42:8 -0-5 +28 —0-7 +25 —0-8 42:8 —0-6 +2-6 —0-9 +2-6 —0-9 +26 —0:8 +2.8 —0-7 +2-6 —0:7 Effect | Mean | Sun’s Sun. |Group. Alti- tude. 30-7 30-9 30-6 29-1 28-1 26-6 Observation. Se. div.| Se. diy. Marcw 12. 19-4 22-0 20-9 23-3 22-4 24-7 23-9 Shade. Begun.|Ended. 22-1 22-3 24-7 23-3 Change| Effect | Mean in 605, Se. div. +2-7 —0-9 + 2-6 -—0-9 + 2-4 —0-8 +2-8 =07 +1-9 —0-6 +1-9 —0:8 +2-0 —0:8 +1-8 -0-9 + 2-0 —0-9 +2-1 -—0-8 +2-3 —0-8 +2-1 -—0-8 + 2-2 —1-0 + 2-2 -1-0 + 2:3 —1-0 + 2-5 -—0-9 +24 oT of of Sun. |Group. Se. diy. | Se. div. 3-4 }3-47 2-68 eh 124 Qh 4m, h 12h 214 23m, ch 124 22h gm, Clear near the sun; scud to H. 34™ 308. Scud approaching the sun. 44m—48m, Clouds on or near the sun. I No clouds within 30° of the sun. 53™. A very thin haze passing over the sun. 58™. Clouds coming over the sun. March 12414 28m, Toose scud within 4° of the sun, and over the sun for 5. 33™. A small patch of vapour near the sun. 19™. Thin cirrous cloud coming near the sun, and . Clouds off the sun. : F MAG. AND MET. ops. 1846. A cloud over the sun for 105. eading the whole of the sky, so as to render further observations useless ; snow at 24™, A patch of cirro-stratus 20° to eastward of the sun; no haze visible. 27™, The patch of cirro-stratus has disappeared. 45™. The sky has been very favourable since about 27™. Patches of cloud on horizon to south, 25° distant from the sun. weh 124 22h 15m, The instrument was exposed to the sun a few seconds too long; the observation was taken at the proper time. Dry thermometer, 28°-7, wet thermometer, 25°°7. 7™, Thin cloud over the sun. 35™ 05. Scud on sun. Observations made at east end of Observa- 37™, Clouds over 278 ExtrA METEOROLOGICAL OBSERVATIONS, 1845. ACTINOMETER. kersti : Makerstoun . aaah In Sun | Observation. | Change] Effect| Mean | Sun’s]} fean Time | In Sun Observation. Change | Effect | Mean | Sun’s} or in of of | Alti- of or in of of | Alti-] of - First Reading. | Shade. |Begun./Bnded.| 60°. | Sun. Group.| tude. } Pirst Reading. | Shade. |Begun.|Ended,| 60%. | Sun. |Group.| tude, ad oh om 5s Se. diy.| Sc. diy.| Se. diy. | Se. div. | Se. div. Marcu 12, 13. 12 23 9 17| Sun | 21-4 | 24-1 | +2-7 10 42} Shade} 23-8 | 22-7 | —1-1 3-6 11 42] Sun | 22-7 | 25-1 | +2-4 | 3-5 13 12| Shade} 24-7 | 23-6 | —1-1 3°5 14 12| Sun | 23-6 | 26-0 | 4+2-4 | 3-6 15 42) Shade] 25.7 | 24-4 | —1-3 | 3-8 |/3-69 16 42| Sun | 24-4 | 27-0 | +2-6 | 3-8 18 12} Shade} 26-8 | 25-7 | —1-1 | 3-7 19 12| Sun | 25-7 | 28-3 | +2-6 | 3-8 20 42} Shade| 27-9 | 26-6 | —1-3 | 3-9 21 42} Sun | 26-6 | 29-2 | +2-6 | 3-9 23 12} Shade} 28-9 | 27-6 | —1-3 | 3-9 24 12| Sun | 27-6 |30-3 | +2-7 | 4-0 25 42} Shade] 29-9 | 28-7 | —1-2 | 3-8 26 42| Sun | 28-7 |31-3 | +2-6 | 3-9 |$4.04| 30-9]13 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 | 3-8 33 12} Sun | 18-7 | 21-5 | +2-8 | 3-8 ny da ohom s. Se. div.| Se. div.] Se. div. | Se. diy.| Se. div. ~ Marcu 13. 2 12| Sun | 20-3 | 22-7 | +2.4 3 42] Shade! 22-5 | 21-7 | —0-8 | 3-2 4 42] Sun | 21-7 | 24-1 |}+4+2-4] 3.2 6 12) Shade} 24-0 | 23-2 | -—0-8 | 3-2 7 12] Sun | 23-2 | 25-7 | +2-5 |] 3-4 8 42] Shade] 25-6 | 24-7 | —0-9 | 3-3 9 42| Sun | 24-7 | 27-1 | 42-4 | 3.3 11 12} Shade} 26-8 | 25-9 | —0-9 | 3-3 12 12] Sun | 25-9 | 28-3 | +2:4 | 3-3 13 42] Shade] 28-1 | 27-2 | —0-9 | 3-4 14 42} Sun | 27-2 | 29-7 |+4+2-5 | 3-4 16 12} Shade] 29-4 | 28-4 | —1-0 | 3-6 17 12} Sun | 28-4 | 31-0 | +2-6 29 12} Sun | 29-5 | 32-1 | 42-6 | 4-1 30 42] Shade} 31-6 | 30-0 | —1-6 | 4:3 34 42] Shade} 21-3 | 20-4 | —0-9 | 3-7 35 42| Sun | 20-4 | 23-3 | +2.9 | 3-9 31 42} Sun [30-0 |32-9 | +2-9 | 4:5 37 12} Shade} 23-2 | 22.2 | —1-0 | 3-9 33 12} Shade} 32-3 | 30-8 | —1-5 38 12| Sun | 22-2 | 25-2 | +3-0] 3-9 39 42} Shade] 25-0 | 24.2 | —0-8 | 3.7 40 42} Sun | 24-2 | 27-0 | +2-8 | 3-6 42 12) Shade] 26-8 | 26-0 | —0-8 | 3.7 43 12} Sun | 26-0 | 29.0 | +3-0 3-78 | 28-8] 12 23 44 12] Sun | 20-2 | 22-9 | +2-.7 45 42) Shade} 22-6 | 21-1 | —1-5 4 Gee ee cles see ae 13. 1 50 12] Sun | 19-4 | 92.6 | +3.2 3 51 42} Shade} 22-3 | 21-2 | —1-1 | 4-3 52 42] Sun | 21-2 | 24-5 |+4+3-3 | 4-4 54 12) Shade} 24-3 | 23-3 | -1-0 | 4-3 55 12} Sun | 23.3 | 26.6 | +3-3 | 4:3 56 42} Shade] 26-3 | 25-3 | —1-0 | 4.4 57 42| Sun | 25-3 | 28-7 | 43-4 | 4-4 59 12} Shade} 28-3 |27-2 | —1-1 | 4-5 13° 2 O 12} Sun | 27-2 |30-5 | +3-3 | 4-5 1 42) Shade} 30-2 | 28-9 | —1-3 | 4-6 48 12) Shade | 23-3 | 21-9 | —1-4 49 12} Sun /21-9 | 24.3 | +2-4 50 42] Shade | 23-8 | 22-2 | —1-6 51 42| Sun | 22-2 | 24.6 |+2-4 | 4-0 |/3-96 53 12} Shade| 24-0 | 22-3 | —1-7 | 4-1 54 12) Sun | 22-3 | 24-7 | +2.4 | 4-0 55 42) Shade} 24-0 | 22-5 | —1-5 | 3-9 56 42} Sun | 22-5 | 24-9 | +2-4 | 3-8 58 12} Shade| 24-3 | 22-9 | —1-4 | 3-8 59 12] Sun | 22-9 | 25-3 | +2.4 4.37 | 27: 42| Sun | 28.9 132.2 /43-3| 4.5 12| Shade|17-4 116.3 | —1-1 | 4.5 |{2°3| 24 2 4 5 12/ Sun /|16.3 |19-8 | 43-5 | 4.6 6 42) Shade} 19-4 [18-3 | —1-1 | 4-5 13° 0 26 12) Sun 9-1 | 11-3 | +2-2 7 27 42| Shade} 11-1 | 10-0 | —1-1 | 3-3 3) 28 42) Sun | 10-0 | 12-3 | +2-3 | 3-4 10 30 12| Shade} 12-0 | 10-9 | —1-1 | 3-4 |}3-42 31 12) Sun | 10-9 | 13-2 | +2-3 | 3-5 32 42/ Shade} 12-9 | 11-7 | —1-2 | 3-5 33 42| Sun [11-7 | 14-0 | +2-3 42) Sun 18-3 | 21-7 | +3-4 4-6 12} Shade} 21-3 | 20-0 | —1-3 | 4.7 12] Sun 20-0 | 23-4 | +3-4 | 4-6 11 42] Shade} 23-0 |21-8 | —1-2 | 4.5 12 42] Sun | 21-8 |25-0 | 43-2] 4-6 14 12) Shade} 24-6 |23-0 | -1-6] 4-8 15 12| Sun | 23-0 126.2 | +3-2 March 122 23" 16™, Small patches of cloud coming near the sun. 21™. Patches of very thin cloud coming over the sun occasionally ;) they seem not to affect the indications of the instrument. 33™. Quite clear since 25™; dry thermometer 29°8 ; wet thermometer 26™1. March 134 14 2, (Observations made on the south side of the Observatory ; no clouds near the sun. 5™. A patch of cloud about 10° to eastward of the sun. 6™, A patch of cloud passed near the sun; no others passed within 15° of the sun. 18". Dry thermometer 33°1; wet thermometer 277. 1 March 134 1 30™, Observations made within the porch of the Observatory. March 134 2h 4m 08, The screw of the actinometer withdrawn a little. | March 134 24 9™, Very thin clouds about 25° to westward of the sun; they seem to disappear when within 20° of him. 15™, Patches | of cloud coming within 10° of the sun. Extra METEOROLOGICAL OBSERVATIONS, 1845. 279 ACTINOMETER. A Makerstoun Ob: “a Observation. | Change| Effect} Mean | Sun’s} Mean Time |i Sun servation. | Change| Effect | Mean | Sun’s in of of | Alti- of (yo) | y Say ewe ie of of | Alti- + |Begun.|Ended. 60s, | Sun. |Group.| tude. | first Reading. Shade. |Begun.|Ended.| 60%. | Sun Group.| tude. Sc. diy.| Se. div.] Se. div. | Se. div.| Se. div 9 ad. ho m 5. Se. diy. | Sc. div.| Se. div. | Se. div. | Se. an c Marcu 28. APRIL 21, 22. 8 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 0] Sun | 16-4 | 20-1 | +3-7 | 4-1 31 30| Shade| 18-0 | 17-6 | —0-4 | 1-2 39 30| Shade] 20-1 | 19-7 | —0-4 | 4-0 3.92| 24.3 32 30| Sun | 17-6 | 18-4 | +0-8 | 1-2 |/1-24) 6.5 40 30| Sun |19-7 | 23-2 | +3-5 | 3-9 34 0| Shade| 18-3 | 17-9 | —0-4 | 1-2 42 0| Shade| 23-1 | 22-7 | —0-4 | 3-9 35 0O| 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 40 0) Sun {18-0 [19-1 | +11) 1-7 |1157| 7.6 ]21 20 23 0] Sun |10-6 |14-0 | +3-4 41 30] Shade} 19-0 | 18-4 | —0-6 | 1-7 24 30| Shade| 14-1 | 14-2 | +0-1 | 3-4 42 30) Sun / 18-4 | 19-4 | 41-0 | 1-5 25 30| Sun |14-2 |17-8 | +3-6 | 3-5 44 0| Shade} 19-3 | 18-9 | —0-4 | 1-4 45 0/8 9 | 19-9 1.0 27 0| Shade} 18-0 |18-1 | +0-1 | 3.6 q a Regie We dle 3 28 0| Sun |18-1 |22-0 | +3-9 | 3.8 8 19 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 0| 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 0O| Sun | 26-7 | 30-9 | +4-2 | 4-1 59 30| Sun / 23-1 | 25-8 | +2-7 | 2-8 34 30| Shade | 31-1 | 31-1 0-0 | 4.2 1 6| Shade| 26-0 | 25-9 | —O-1 | 2-8 |}2-79| 18-5 35 30| Sun | 31-1 |35-4 | +43 | 43 2 0| 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 0| Sun | 35-7 |40-1 | +4-4 | 4-4 4 30] Sun | 28-4 | 31-2 | +28 | 3:0 39 30] Shade | 40-2 |40-1 | —0-1 | 4-6 4-65 | 32.2 6 0| Shade] 31-2 |31-0 | —0-2 | 3-0 40 30} Sun |40-1 | 44-7 | +4-6 | 4-7 : 7 O| Sun {31-0 | 33-8 | +2:8 42 0| Shade| 44-9 | 44-8 | —0-1 | 4:8 43 0| Sun |44-8 |49-5 | +4-7 | 5-0 APRIL 21, 22. 44 30| Shade| 49-7 | 49-2 | —0-5 | 5-1 | 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 27 US a opal tk Ric aa 21 21 23 0| Sun {11-1 |15-8 | +4-7 | 27 .0| Shade | 24-0 | 23-4 | —0-6 | 2-8 | 24 30} Shade| 15-6 | 14-8 | —0-8 | 5-3 | Bee ant. 252 eae ate a eo 25 30| Sun |148 |19-1 | +4-3 | 5:3 29 30| Shade| 25-5 | 24-9 | —0-6 | 2-8 |}2-78| 14-5 » | 27 0| Shade| 18-8 |17-6 | —1-2 | 5-5 | 30 30| Sun | 24-9 | 27-0 | +2-1 | 2-7 | 28 0O| Sun {17-6 | 21-9 | +4-3 | 5-5 | 32 0) Shade| 26-9 | 26-3 | —0-6 | 2-8 P 29 30} Shade} 21-5 | 20-2 | —1-3 | 5-5 |}5-53 | 38-0 33 0| 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 32 01 Sh. 93.9 |99 35 30| Sun |27-8 [30-1 | +2:3 pete eee setae 33 0| Sun | 22-4 |26-6 | +4-2 | 5-7 23 0} Sun | 16-4 |19-7 | +3:3 34 30)| Shade| 26-0 | 24-4 | —1-6 | 58 24 30} Shade | 20-3 | 20-1 | —0-2 | 3-4 35 30| Sun | 24-4 | 28-6 | +4-2*| 5-8 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 0| 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 5.77 39-0 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 eee 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 ch 284181 30m, A few thin sheets of cirrus to east, about 10° above the sun. 214 18h 25m, A slight haze to Hast, like the remains of a fog; a very slight fog in the valleys. i1 21419 23m, Thin haze round the horizon. 19 24m, The instrument was exposed to the sun’s rays a few seconds too long; the ng was taken at the proper time. il 214 20% 38m_46™, pril 214 21 23m. Actinometer removed to west end of Observatory : puffs of wind. 36™ 408, The screw withdrawn. A slight breeze. 280 Extra METEOROLOGICAL OBSERVATIONS, 1845. ACTINOMETER. Makerstoun A Mean Time Observation. Change | Effect | Mean Meantime Observation. Change | Effect | Mean of Pee | ak of of of in of of First Reading. * Begun.|/Ended.| 60%. | Sun. |Group. First Reading. Shade. |Begun.|Ended.| 60%. | Sun. |Group. Makerstoun Se. div. | Se, div.| Se. div. | Sc. div. | Se. div. A E 6 F Sc. diy.} Se. div.| Se. div. | Sc. div. | Sc. div.! APRIL 21, 22. APRIL 22, 16-3 | 21-9 | +5-6 Sun 7-3 |12-8 | 45-5 21-7 | 20-9 | —0-8 | 6. Shade}11-7 | 9-3 | —2-4 20-9 | 26-7 | +5-8 | 6- Sun | 11-8 |17-2 | +5-4 26-5 | 25-8 | —0-7 | 6- : 1 Shade | 16-0 | 13-2 | —2.8 31-6 | +5-8 | 6- ° Sun | 15-7 | 21-2 | +5-5 30-7 | —0-6 | 6. 30| Shade] 20-1 | 17-5 | —2:6 36-5 | +5-8 | 6 Sun | 20-8 | 26-5 | +5-7 36-3 | —0-8 25-8 | 23-0 | —2.8 25-5 | 31-0 11-9 | +5.7 HME) |p Sie) +5-6 | 6 19-5 == {30 (8G: 16-7 +5:6 | 6 25-4 ~13 | 6-8 |}6-96| 46-4 22.7 +5-4 | 6-5 3 |31-5 =inle aio) rie 30-8 | 28-8 +5-5 | 7: 3 | 37-8 Sh yale : 7 116-9 +5-4 | 7. 7 | 26-1 =e g +5-4 ile) 47 ; .7 | 28.0 45.2) 71 |{716| 466 eres =f) 5 5 - 32-1 +5-2 | 7- ri) +5-2 re) + 5-2 —1-9 +5:3 +5-5 = 2-2 +5:5 —2-0 + 6-0 —2-2 +56 — 2-4 +5-2 — 2-8 +5-4 7-20 | 46-7 SEASLNSEAT St Doe Ke whe oS PSSSISSS STR oD SIS ES JE KB nnoorady April 214 22h 21m. Observations made in front of the Observatory. 29™ 308. The instrument was exposed 5* too long; the reading | has been corrected proportionally. April 214 234 26™, Observations made at west end of Observatory. 47™ 15s, The screw withdrawn. April 224 2h 15m 45s, The screw withdrawn. 2 30™, There has been a slight condensation of vapour inside the plate-glass cover for some time, probably caused by the currents of air sweeping over the instrument. 38™ 15%. The screw withdrawn. Extra MrrreoroLocicaL OpsERVATIONS, 1845. 281 ACTINOMETER. | | Makerstoun : Makerstoun : | 1 Mean Time | Sun Observation. | Change | Effect nies Time | In Sun Observation. | (hange| Effect | Mean | Sun’s Saimeren nace eer (leet of of ors" liane en of of | Alti- - |Begun./Ended. 60s. | Sun. First Reading. | Shade. Begun.|Ended,| 60°. | Sun. [oa tude. Se. diy. | Sc. div.| Se. diy. | Se. div. d. oh. m. 8. | Se. div.| Se. diy.| Se. div. | Se. div. Se. div. c APRIL 22. 36-3 | 33-0 | —3-3 | 8-9 28 0/ Sun | 35-3 |40-8 | +5-5 | 8-8 29 30| Shade| 39-7 | 36-4 | —3-3 | 8-7 31 0/ Sun / 38-8 | 44-0 | +5-2 | 8-7 32 30| Shade| 42-5 | 38-8 | —3-7 | 8.9 34 0| Sun /40-9 |46-1 | +5-2 | 8-8 | ___—-35 30] Shade] 44-5 | 40-9 | —3-6 | 8-8 -37:«O| Sun | 22-8 | 28.0 | +5-2 | 8-7 | 22 4 21 O| Sun | 21-3 | 24.7 | +3-4 22 30) Shade | 23-3 | 19-9 | —3-4 | 6-7 24 O} Sun | 21-3 | 24-6 | +3-3 | 6-8 25 30} Shade| 23-1 | 19-6 | —3-5 | 6-7 27 0} Sun | 20-8 | 24-0 | +3-2 | 6-7 |;6-66 | 22-9 28 30} Shade | 22-7 | 19-3 | —3-4 | 6-6 30 0} Sun | 20-6 | 23-8 | +3-2 | 6-6 31 30} Shade | 22-4 | 19-0 | —3-4 | 6-5 33 0} Sun | 20-0 | 23-1 | +3-1 22 5 33 O| Sun | 22-4 | 25.3 | +2-9 34 30} Shade| 25-0 | 23-7 | —1-3 | 3-9 |} 36 0| Sun | 24-7 | 27-0 | +2-3 | 3-7 37 30} Shade| 26-4 | 24-9 | —1-5 | 3-8 39 0} Sun / 25-8 | 28-2 | +2.4 | 4-1 40 30) Shade | 27-6 | 25-8 | —1-8 | 4-1 |/}3-93 | 12-6 42 0} Sun /|26-8 | 29-0 | +2.2 | 3-9 43 30) Shade | 28-3 | 26-6 | —1-7 | 4-0 45 0} Sun | 27-4 | 29-7 | +2-3 | 4-0 46 30) Shade | 28-8 | 27-0 | -1-8 | 3-9 48 0; Sun | 27-6 | 29-5 | +1-9 22 5 59 O| Sun | 19-6 | 21-1 | 41-5 22 6 O 30] Shade} 20-2 | 18-1 | —2-1 | 3-5 2 0} Sun | 18-6 | 19-9 | +1-3 | 3-4 3 30| Shade} 19-0 | 16-9 | —2-1 | 3-5 5 0; Sun [17-3 |18-9 | +1-6 | 3-8 6 8 38 30} Shade] 26-8 | 23.4 | —3-4 | 8-4 40 0} Sun | 25-6 | 30-4 | +4-8 | 8-2 Y 41 30| Shade} 29-1 | 25-7 | —3-4 | 8-3 5 43 0| Sun | 27-8 | 32.9 | +5-1 | 8-7 44 30| Shade] 31-4 | 27-7 | —3-7 | 8-5 46 0| Sun | 29-7 | 34-3 | +4-6 | 8-7 47 30} Shade| 32-3 | 27-5 | —4:5 | 8-9 49 0} Sun | 29-7 |33-9 | +4-2 | 8-6 50 30} Shade| 32-0 | 27.7 | —4-3 | 8-7 52 0} Sun | 29-4 | 33-9 | +45 | 8-9 30} Shade} 31-9 | 27-4 | —4:5 | 8-9. 0} Sun | 29-2 | 33-6 | +4-4 | 8-7 30} Shade} 31-9 | 27-9 | —4-0 | 8-4 53 55 56 58 0| Sun | 29-8 | 34-3 | +4-5 | 8-6 59 30| Shade] 32-6 | 28-4 | —4.2 | 8-8 1 0| Sun | 30-2 |34-8 | +4-6 | 8-6 2 30] Shade] 33-1 | 29-2 | —3-9 | 8-5 4 0/ Sun | 31-1 |35-6 | +4-5 | 8-6 5 30| Shade| 33-7 | 29-3 | —4.4 | 8-8 7 O| Sun /31-0 | 35-3 | +4-3 | 8-6 8 30] Shade| 33-5 | 29-3 | —4.2 | 8-7 10 O| Sun | 31-2 | 35-9 | +4-7 | 9.0 30] Shade| 34-0 | 29-7 | —4-3 | 8-9 0| Sun | 31-5 |36-0 | +4-5 | 8-7 30} Shade | 34-2 | 30-0 | —4-2 | 8-8 0| Sun | 31-9 | 36-6 | +4.7 | 8.8 30] Shade] 34-8 | 30-9 | —3-9 | 8-5 0| Sun | 32-8 |37-4 | +4-6 | 8.7 30| Shade| 35-7 |31-5 | —4-2 | 8-8 0} Sun | 33-3 |38-0 | +4-7 | 8-7 30| Shade] 36-3 |32-6 | —3-7 | 8-3 0| Sun | 34-6 | 39-1 | +4-5 | 8.3 30| Shade | 37-6 | 33-7 | —3-9 | 8.3 0} Sun | 35-4 |39-8 | +44 | 8-4 30| Shade} 38-1 | 34-0 | —4-1 | 8.4 0| Sun | 35-7 |39-9 | +4-2 | 8-3 30| Shade] 38-3 |34-2 | —4-1 | 8.4 0} Sun | 35-9 |40-3 | +44 30| Shade} 18-2 | 16.0 | —2.2 | 4-1 |+3-48] 9-0 0} Sun |16-6 | 18-8 | +2-2 | 4.0 9 30} Shade| 18-4 | 17-0 | —1-4 | 3-2 11 0} Sun /17-8 | 19-3 | +1-5 | 2-9 12 30) Shade} 19-1 | 17-7 | —1-4 | 2-9 14 0} Sun | 18-4 | 20-0 | +1-6 | 3-0 15 30] Shade | 19-4 | 18-0 | —1.-4 | 3-0 17 0O| Sun /19-0 | 20-6 | +1-6 | 3-3 18 30} Shade | 20-1 | 18-2 | —1-9 | 3.3 20 O| Sun /18-6 | 19-8 | +1-2 | 2-9 |}3-10| 7-2 21 30) Shade/19-3 | 17-7 | —1-6 | 3-0 23 0| Sun /|17-9 |19-4 | 41-5 | 3-2 24 30) Shade| 19-0 | 17-1 | —1-9 | 3-2 26 0O| Sun | 17-3 | 18-3 | +1-0 | 3-0 27 30) Shade/ 17-4 | 15-2 | —2.2 | 2.8 29 0} Sun | 15-1 | 15-3 | 40-2 | 2-5 30 30] Shade | 14-3 | 11-9 | —2.4 | 2-5 32 0| Sun | 11-9 | 11-9 0-0 | 1-7 33 30| Shade | 22.7 | 21-7 | —1-0 | 0-5 |}1-77| 5-4 35 0} Sun /| 21-4 | 20-4 | —1-0 | 0 36 30} Shade/19-5 | 17-3 | —2.2 | 1- 1 1 38 0| Sun |17-0 | 16-9 | —0-1 39 30} Shade} 15-9 | 14-0 | —1.9 41 0O| Sun /13-8 | 13-5 | —0.3 il 224 3 20m, The spot of moisture, which has been inside the plate-glass cover since about the commencement of this series (14 55™), ihe middle of the plate of glass, oval shaped, about 1} inch long and # inch broad. il 224 3h 35m, 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- about one-tenth of an inch in diameter. April 224 5 36m, A slight milkiness in the sky to westward ; the sun tolerably favourable. April 224 5 59m, The observations after this time were made on the roof of the Observatory, the actinometer being put into the shade vering it below the parapet wall. ril 224 6h 33m 15s, The screw turned in a little. Trees intervened after 6 42™, preventing further observations. 282 ExtTrA METEOROLOGICAL OBSERVATIONS, JANUARY 19—Marcu 20, 1845. ADDITIONAL METEOROLOGICAL NOTES. 1845. d. Jan. 19 Jan. 19 Jan. 20 Jan. 20 Jan. 20 Feb. 5 Feb, 5 Feb. 8 Feb. 14 Feb, 21 Feb. 27 Feb. 28 Mar. 10 Mar. 14 Mar. 20 hi; ms 19 19. 22 10. 17 40. 20 5. A meteor considerably brighter than Venus burst at azimuth, N. 38° W., altitude 10°; its course was towards SW., being inclined to the horizon at an angle of about 45°; only a few degrees of its course were seen. 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 horizen, like a mass of auroral light, and in single tufts higher. Large corona when the moon is covered by thin, watery cloud, and small bluish corona on the apparently pure sky. Auroral light to N.? When the watery cirro-cumulo-stratus is over the moon it produces a beautiful corona of avery | fine light-green colour. Faint lunar corona. The sky seems very clear around the moon, yet the very faint light-green can be detected to a radius of about 4°; inner circle of brownish light, about 10’ broad. 14" 10™, The cirro-cumulo-stratus exhibited the phenomenon previously described (see volume for 1844, p. 324, Sept. 264.) It moves rapidly, and seems always about to leave the moon, but does not; in fact, the cloud seems to grow at the prime vertical ; all to the north of it is sky, and all to the south is cloud. 15! 5™, Faint corona as before. Cirro-cumulo-stratus 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 ESE. to an altitude of about 45°, inclined to E. horizon at an angle of nearly 75°: another, but narrower beam, having the same origin, is inclined 20° to the E. horizon. 205 12™, A bright beam, about the same dimensions as the first noted above, in fact like its opposite extremity, springs from about NW by W.; also a lower band, which forms the greater part of an arch, its apex having an altitude of 15° above the NNE.; all the bands are rather rose-coloured, 20% 15™—20™, There are now six bands springing from about NW. (or NW by W. 2) point of horizon, like broad streamers, with equal or rather less spaces of sky between: all the bands are rose-coloured, and rise from about 4° above horizon; sky dark blue. The bands — nearest the vertical (inclined about 75° to the horizon) rise perhaps 20°; the lowest bands extend like arches. 20" 30™, The whole now form a band of rosy light on N. horizon, brightest about NW. (?), like an auroral bank. The sun rose shortly after this about ESE. Sky rather milky ; milky aurora? The new moon is shining; some of the milky spots are un- 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 distinct, much more so than usual. The cloud in which the corona occurs, the watery cirro-cumulus, grows about the zenith ; at 11) a very faint small corona, although the sky seems perfectly clear. The dry and wet bulb thermometers shewed the same temperature (280) ; at 12" 40™ the wet bulb read 31°:0 when the dry bulb thermometer read 27°-0; at 0™ the water in the cistern was not frozen ; at 40™ it was beginning to freeze; the increase of temperature was therefore probably due to the emission of latent heat during freezing (this has been frequently observed.) Cirri lying NW and SE. The cirro-stratous scud and scud reaches from Cheviot to NW. nan | unbroken mass, with sky on each side; Cheviot covered with snow. The upper current of cirrus appears to move rather quicker than the cirro-stratous seud, Sky milky (see Notes to Extra Magnetical Observations, p. 122). 17™—25™, Three meteors seen, one moving nearly past zenith, the others moving NE. and NW., respectively, from” about 60° altitude. 40™, Another meteor from 50° altitude above N., moving N by E. F Very wild-like black masses of seud with a light homogeneous background, perhaps seud falling in showers : the wind commenced suddenly at 7" 10™ blowing 2-5 Ib.; at 20™, rain?. The 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 NNW., through about 30°, no sparks. Cirri radiating in belts from N. to S.; hazy near horizon ; indistinct lunar corona, Cirro- _ cumuli growing in a few minutes ; none seen at 10% 58™, ExtTRA METEOROLOGICAL OBSERVATIONS, Marcu 20—Aprit 14, 1845. 283 ADDITIONAL METEOROLOGICAL NOTES. 1849. “Mar. 20 16 (ay on | i | : | | | Mar. 28 12 25 | i 7h ge -22, 0 Mar. 30 17 10. Mar.31 3 . dl 18 50— ety: LO. OG) 5a 8 6 pr. 13 16 25, MA 7 far. 26 10—11%. 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. 175 20™. Altitude of crepuscular arch 30°; reddish vapours to E, 18%. Sky pinkish to ESE., blood- red to E., deep purple to ENE; cirri radiating from NNW. 195. Cirri radiating as before. 20% 30m, Parhelia seen, ‘The western parhelion very bright. Several flashes of lightning seen; wind blowing strongly at 125 10™; at 12 15m, wind blow- ing 6-0 Ibs. ; heavy rain. 14%. Sky milky; the moon projects the shadow of the clouds in the air; traces of aurora, 175 4™, Crepuscular arch about 8° altitude. 175 45m, Begin- ning to colour on the E. horizon. 18 20™. « Lyre seen quite distinctly with the naked eye. A shooting-star to WNW., altitude about 45°, moving from S. to N. Crepuscular arch about 10° altitude. 35™. Sky colouring to E. 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 115. Sky milky and hazy-like near horizon ; faint aurora. Crepuscular arch, 9° altitude. 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. 44. Fine mottled, linear, and cymoid cirri; cirro-strati radiating from NW by N. and SW by 8.; 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. 19 15. Parhelia seen; 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. Bright crepuscular arch, altitude 11°; an arch of reddish vapour 5° altitude. 18% 5™, « Lyre 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. Cirri dispersed irregularly over the sky, radiating to some extent from WNW. ; hazy on horizon. 75. Flame-like cirri; atmosphere very hazy to E.; Cheviot invisible. 18% 5™, Shooting- star to E., altitude 30°, moving slowly towards E by S., magnitude 1 to 2. Finely-mottled cirri to W., altitude 20°, which shew colours exactly like diffraction spectra from irregularly-striated bodies ; deep purple vapours to W.; thick to E.; 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. 8». Sky of aslate-blue to E, 10" 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; in about 10™ it becomes much thinner ; stars of the second magnitude being visible through it m many places, and is again rapidly disappearing but without any motion. Streaks of cirro-strati to NNW., quite stationary. Zodiacal light very distinct. 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 which these images are formed radiate from NNW. Curi radiating from NNW. and SSE., but moving from N.; ill-defined portion of a solar halo. 8». Cirro-strati blood-red from NW by W. to W., seen in fiery patches through the gray seud ; sky yellowish to N. 9. Clouds now radiating from N by E. 84 Extra METEOROLOGICAL OBSERVATIONS, APRIL 16—JuLy 31, 1845. ADDITIONAL METEOROLOGICAL NOTES. 1845. da. oh. m. 1 Apr. 16 11 Cirri radiating from about NE by E., but they are formed of bars lying NW by N. and SE byS.; — there is a circle of light round the moon of the usual dimensions of the halo, but the interior | of the circle is as luminous as the circumference ; the corona is not well coloured. if Apr. 21 16 10, Crepuseular arch, 7° altitude; sun’s upper limb visible at 17” 20™. Apr. 22 16 7. Crepuseular arch ; reddish vapour, 3° altitude ; bright yellow, 6° altitude ; white, 9° altitude. 17 27. a Lyre watched till now, when 4 of the sun’s diameter is visible above the horizon ; had the eye been a little better cared for at first, I have no doubt but it might have been seen when the sun was completely above the horizon; the eye was kept upon the star by placing the eye, the star, and a corner of the Observatory in the same vertical. Apr. 25 11 Light on horizon to 8. } W., like from a fire. 13h 58™. Very bright to N by E., altitude 10°, as if the moon were shining through the clouds. 14" 6™. Bright-red glare, covering a cir- cular space of 10°; the reflection (?) is only from the upper clouds (cirro-strati ?) and there is a black patch in the midst of the glare: this is perhaps the reflection of a fire as it oceurs in exactly the opposite point of the horizon from the light seen at 115, May 1 5. Beautiful and vivid double rainbow, the extremities within 150 yards of the observer ; four re- currences of the red could be observed in the supplementary bows, but the red or reddish colour only could be detected, forming narrow bows within the primary; the secondary bow very distinct. May 1 11. Strong twilight (?) to NNW. 11" 6™,. Meteor to E., altitude 45°, moving towards SE. Thunder-storms to-day 13 miles off to SSW. May 4 12 59. A meteor moved up from about 45° above SE., to 65° above E. Crepuscular light throughout the night. May 15 19. Many varieties of cirro-strati, chiefly in woolly sheets ; a few sheets of mottled cirro-strati, lines of cirro-strati lying N. and S., 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 §. and SE., very thick and black, the clouds have a variety of motions inter se. 2 0m, Thunder to SE. 2™, Rain®. 4™, Another peal to SE, Very little rain after 20™. 2 15—20. Occasional peals from SE. 22. A flash of lightning, thunder in 78. 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 125. 30. Streak to E., altitude 6°. 35. A large streak went parallel to the horizon to NE., and then bisected itself at right angles, stretch- 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 88, like an illuminated serpentine copper wire. 40. About 20 flashes have been seen since 20™, the rolls have been almost uninterrupted, 40. Flash to NNE., interval 105. 41. Flash to NNE., interval 8:—105, 48. Two flashes, one to NE by E., and the other to N., interval 22s. 44, Flash to NNE., interval 138, altitude 5°. 4 45. Three streaks pependicular to the horizon to N by E., interval 30s. | Flash to N by E., interval 335. he One to NE., altitude 15°, and another to N., interval 11s from NE.; the thunder continued — at intervals to NE. and N. ‘ .&] Mean Time || DECLINA- } 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. jah m. is bs Se. Div. 9 Mice. Div. 7 f Bes ager roe 2 . Se. Diy. | ei Mic. Diy. ° | 6 7 O || 25 09-00|| 553-3] 43-3 || 403-2) 44-7 B 815 0 || 25 08-77 || 546-4] 48-5 | 373-7) 48-9 a 8 0 08-32|| 552-2| 43-7 || 401-4) 45-0 B 16 0 08-52 || 546-3/ 48-4 || 373-9] 48-8 7 9 0 07-74 || 551-5| 44-1 400-3 | 45-4 B 17 O 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 0 07-35 || 549-3] 44-8 || 396-0} 45-9 || W 19 O 08-66 || 548-9| 47-9 || 370-6) 48-2 0 09-59 || 548-6] 45.0 || 392-7| 46-0 | W 20 0 08-79 || 548-8| 47-8 || 371-7} 48-1 0 || 25 05-49|| 550-9| 45.2 || 385-4| 46-2 |) w} 22 0 eee ee tale ee | 22 0 07-76 || 545-1| 47-6 || 374-8) 47-7 0 07-04|| 539-2} 45-3 || 382-9] 46-3 | W z 23 0 08-72 || 540-4] 47-4 || 373-3| 47-5 0 08-61 || 547-1) 45-4 || 384.3) 46.4 | W ea E, 9 0 0 10-43 || 539-8 | 47-3 |) 375-5) 47-5 0 07-96 || 544-5| 45-6 || 388-7| 46-5 | W ya) 11-46 | 540-2! 47-2 || 377-2) 47-5 0 07-51|| 547-6] 45-6 || 387-2] 46-5 | W | ; a 2 0 13-05 | 544-8} 47-2 |) 392-9) 47-5 0 06-09 || 547-4| 45-7 || 386-0] 46-6 | W 5 3 3 0 11-24 || 543-7) 47-2 || 396-6] 47-5 0 08-93 || 540-2| 45-8 || 387-6| 46-7 B Es 4 0 10-36 || 548-9| 47-2 || 399-3) 47-5 0 07-40 || 548-1] 45-9 || 387-6| 46-8 B 5 0 09-69 || 547-9| 47-2 || 397-9) 47-5 0 07-18|| 550-3} 45-9 || 388-7| 46-38 | H - s } 6 15 09-33 || 548-0} 47-2 | 395-2) 47-5 0 10-56 || 550-6| 46-0 || 386-9} 46-9 H Thine Ad 08-23 || 548-4) 47-1 || 394-3) 47-4 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 11-12|| 539-0} 46-2 || 384.5] 47-0 B “ 9 0 08-05 || 549-6| 46:9 || 396-3) 47-1 0 12-62|| 547-1] 46-4 || 383-0] 47-2 H 10 0 07-47 || 546-8| 46-8 || 399-5] 47-0 0 12-36 || 549-6] 46-5 || 383-0] 47-3 H 11 0 08-79 || 544-6| 46-6 || 397-1] 46-7 D pee?) oe eee | oe ol 12 0] 08.95] 547-3| 46-5 | 396-2) 46-6 0 11-88 || 547-4] 46-8 || 389-9} 47-6 B 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 ot 00-28 || 532-4) 47-0 || 405-4/ 47-8 | W 14 0 08-97 || 545-5] 46:3 || 396-9] 46-3 ot 01-18 || 539-5] 47-2 || 416-9} 48-0 || W 15 0 08-80 || 545-6| 46-1 397-0} 46-2 0 07-64 || 551-5] 47-4 |) 398-8] 48-3 || W 16 0 08-46 || 546-7} 46-0 || 396-5| 46-2 0 04-96 || 544-5] 47-5 || 403-5 | 48-3 WwW 17 0 08-34 || 547-5| 45-9 | 395-2) 46-1 0 06-93 || 549-5 | 47-5 395-1| 48-2 | W 18 0 08-61 || 549-1) 45:9 || 392-6| 46-0 0 08-12]) 546-1] 47.4 || 390-0] 48-2 | H 19 0 08-41 || 549-3| 45-8 392-4| 46-0 0 07-71|| 543-6] 47-4 || 386-4| 48-1 || H 20 0 07-72 || 540-4| 45-7 || 392-1] 46-0 21 0 07-67 || 549-8| 45-7 || 393-8| 46-0 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 0 03-65 || 545-2| 47-3 || 361-3] 48:0 | H 23 0 07-27 || 546-7| 45-7 || 393-8} 46-0 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 0 10-67 || 541-3] 47-3 || 365-1] 48-0 | H 1 0 10-38 || 547-2] 45-8 || 394-2] 46-2 0 10-23 || 543-0} 47-3 || 369-8] 48-0 H Diet 11-00 | 549-8| 46:0 || 396-3] 46-5 0 07-07 || 551-5| 47-3 || 371-2| 48-0 | H 3 0 11-41 || 551-5| 46-2 | 398-6] 46-9 0 08-18 || 548-9} 47-4 || 374-3] 48-0 | W 4 0 11-05 |) 548-1] 46-4 | 403-6| 47-2 0 09-39 || 543-6} 47-4 || 379-3| 48-0 | W 5 (0 09-56 || 545-6| 46-7 || 404-1] 47.3 0 12-75 || 539-8] 47-4 || 380-2} 48-0 B 6 0 09-24 || 553-1| 46:8 || 399.8) 47.4 0 12-96 || 540-6| 47-4 || 381-5] 48-0 | W 7 0 09-62 || 552-:7| 46-9 || 396-2] 47-5 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 14-38 || 539:0| 47-6 || 385-4| 48-1 WwW 9 0 08-52 |) 547-9| 47-1 398-0 | 47-7 1 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 12 0 05-72 || 548-6] 47-1 394-6 | 47-7 Ea 0 14-60 || 547-4) 48-0 || 395-7] 48-8 — WwW 1119 0 | 25 11-48|| 556-6| 43-3 | 387-1}: 43-7 fa 0 06-77 || 551-1] 48-2 || 397-7} 49:0 | W F | 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 a { 22 0 10-33 || 547-1] 43-2 || 386-4] 43-4 Sas 0 09-49 || 549-0} 48-5 || 383-8| 49-2 | H ’ | 23 0 12-25 || 546-0} 43-1 || 387-6} 43-3 neo. 0 08-09 || 546-0] 48-7 || 385-0] 49-4 | H 5 12 0 0 13-69 || 541-4] 43-0 || 399-7| 43-3 9. 0 04-41 || 547-9] 48-7 || 385-6| 49-5 H p 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 y | 2 0 17-94 || 549-0| 43-0 || 433-7| 43.4 0 07-51 || 546-4] 48-7 || 382.9) 49-3 || W 12.45 0 08-34 || 546-8| 48-7 || 382.1| 49.3 | D pak REE meee Cee. , | 6 0 10-14]|| 546-5 | 43-0 || 416-9} 43.4 - 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 14 0 07-92 || 543-9] 48-6 || 376-4) 49-1 D 10 0 04-841) 543-8| 42-1 || 412.21 41-8 DECLINATION. Magnet untouched, Jan. 04—Feb. 154. = ea J | Burrimar. Observed 2™ after the De “MAG. AND MET. ozs. 1846, ¢ Extra Observations made. clination, k—=0°000135. BALANCE, 289 Observer’s Tnitial. Sash snsnsee teases st teres ssesss SA OOO UUM MMM deme OMS Observed 3™ after the Declination, s—=0:000010. 290 DAILY OBSERVATIONS OF MAGNETOMETERS, JANUARY 12—22, 1846. Gottingen BIFILAR, BALANCE, THR Gottingen BIFILAR. BaLancek. % | Mean Time. || Decurna-.||——_,,_____ | 1 eee | Mean Time. ||, Decrra- .|-——__, __|>—_ 23 of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°2} of Declina- TION. Cor- |Thermo-| Cor- |Thermo-| 2° } tion Obs. rected. | meter. || rected. | meter. 5 i tion Obs. rected. | meter. || rected. | meter. 5 on | ah ml 3 - Se. Div. e Mie. Div. MY See a S t Se. Div. v Mic. Div. a) 12 18 0 || 25 09-05 || 545-7) 39-3 411-0} 38-8 H |] 17 2 0 || 25 12-36|| 550-7 | 37-4 410-7 | 38-2 WwW 20 0 08-41 || 545-5| 38-8 || 411-9] 38-4 || H 4 0 || 25 11-19} 538-9) 38-0 427-9} 38-8 H 22 0 07:71 || 543-0} 38-3 413-8} 37-9 WwW 6 O || 25 12.92]| 547-2) 38-7 428-8) 39-7 wt 23 0 09-12] 542-1) 38-1 418-2} 37-7 H 7 O || 24 55-65] 545-8) 39-1 442-6| 40-1 Wi 13 0 0 09-59 || 539-7] 37-9 || 424-5] 37-5 B 8 0 |} 25 03-82 ]| 542-3) 39-3 || 433-2) 40-4 WwW 1 @ 10-23 || 539-9| 37-7 424.8} 37-5 H 10 O || 24 59-06 }| 544-8| 39-9 || 424-4) 40.8 WwW 2 0 12-38 || 542-3} 37-6 418-7} 37-5 B 4 0 11-07 || 545-1] 37-4 || 413-3] 37-5 H | 18 18 0 || 25 06-16|| 557-3} 40.2 398-9| 40-6 Hf 6 0 08-90 || 549-3 | 37:5 413-6| 37-7 WwW 20 0 09-29 || 546-1 | 40-0 397-7| 40-4 H | 740 09-69 || 547-8 | 37-5 413-2} 37-8 Ww 22 0 12-15 || 543-7| 39-9 || 400-3} 40-2 || W 8 0 09-71 || 547-6] 37-6 412-5} 37-9 Ww 237 2 14.03 || 544-2} 39-8 || 401-0] 40-2 Hf 10 0 04-95 || 542-9| 37-6 || 418-1) 38:0 | W] 19 0 0 13-16 || 543-3] 39-9 || 405-3] 40-4 || W 0 12-58 || 549-3 | 40-1 405-3 | 40-6 H 18 0 || 25 15-71 || 546-1] 37-9 358-6| 38-7 H 2. O 11-17 || 549-9| 40-1 409-5 | 40-7 WwW 20 0 07-76 || 555-0} 37-9 386-8] 38-5 H 4 0 09-15 || 548-2} 40-3 408-9 | 41-0 H 22 0 08-34 || 542-9} 37-9 392-2| 38-3 WwW (oh ef) 10-43 || 547-0 | 40-7 410-7} 41-4 WwW 23 0 10-61 || 542-0} 37-9 395-8| 38-3 WwW foe 06-09 || 538-6 | 40-8 416-3} 41-5 wi 14 0 0 12-90 || 532-2] 37-8 405-4} 38-4 H $0 09-86 || 548-5 | 41-0 || 412-5| 41.7 WwW 1 a} 11-17 || 534-2} 38-0 || 416-4] 38-7 H 10 0 09-00 || 547-7 | 41-2 || 407-7| 42.0 Ww 23.0 12-31 || 544-5} 38.3 416-6} 39-1 WwW 4 0 10-00 || 548-2] 39-0 || 425-4) 40-0 | H 18 0 || 25 07-98]) 549-3] 42-3 || 398-1| 43.2 || H 6 0 09-20 || 545-8} 39-4 || 419-2] 40-4 | W 20 0 07-79 || 547-4| 42-5 || 397-1] 43-4 Hf) ud 06-93 || 545-6] 39-7 || 416-4] 40-7 WwW 22 0 09-29 || 545-0 | 42-7 396-6| 43-6 Wt 8 0 04-21 |} 541-0} 39-9 420-9} 40-9 WwW pa. 0 10-20 || 541-2 | 42-8 398-7 | 43-7 Hf] 10 0 04-66 || 544-4} 40-2 380-9| 41-1 Wi20 0 0 10-70 || 543-4} 43-0 396-8) 43-8 WwW Toe) 11-74 || 544-2] 43-1 394-0! 43-9 H 18 0 || 25 09-73 || 550-2) 40-8 394.3 | 41-7 H BO 10-87 || 547-1| 43-1 392-5 | 43-9 BL 20 0 09-42 || 548-5} 40.8 393-6| 41-7 H 4 0 09-02 || 546-6| 43-3 393-7| 44-0 H 22°50) 13-37 || 545-9] 40-9 392-7| 41-6 WwW 6 0 _ 09-02 || 548-6 | 43-4 398-6} 44-0 Wi 23 «0 12-18 || 547-3) 40-9 395-7| 41-6 H ou 08-88 || 548-5 | 43-4 397-8 | 44-0 Ww 15 0 0 11-30 || 547-8} 40-9 396-0| 41-5 WwW 8 0 08-46 | 550-2) 43-4 395-7 | 44-0 WwW 1 ett) 09-42 || 544-9] 41-0 396-6} 41-7 H 10 0 08-16 || 548-3 | 43-4 397:8) 44-1 WwW 2 70 12-65 || 545-6] 41-1 403-2} 42-0 WwW 4 0 09-69 || 548-5| 41-6 407-9| 42-6 WwW 18 0 || 25 07-24] 547-5| 43-0 390-5) 43-5 H 6 0 09-30 || 551-6} 42-2 401-1 | 43-2 WwW 20 O 11-27 || 541-6 | 42-7 390-1) 43-0 H (eM) 09-05 || 550-5} 42.4 399-6| 43-4 WwW 22 0 09-69 || 548-0 | 42-3 390-0} 42-3 Ww 3-0 08-61 || 548-3} 42.5 400-3} 43-5 WwW 23 4 11-00 | 546-0) 42-0 390-3| 42-1 H | 10 0 08-38 || 549-6} 42.4 395-8} 43-1 Wi] 2! 0 0 11-52] 544-3 | 41-9 392-5 | 42-2 Ww Nea) 11-91 || 547-4 | 42-0 394-3 | 42-5 Hg 18 0 || 25 08-05 || 546-6] 40-7 392-2} 40-7 | H 2 0 13-19) 551-9) 42-1 393-5) 42-8 H- 20 0 09-12 || 547-0] 40-1 392-2) 40-1 H 4 0 10-94 | 551-2) 42-7 399-7 | 43-5 H a i 08-95 || 548-3 | 39.7 394-0} 39-5 W 6 0 09-84 || 549-9 | 43-0 400-3 43-9 Ww 23 0 09-82 || 547-8 | 39-4 392-5| 39-3 | H thew 08-82 || 551-1 | 43-2 402-8 44-0 WI 16: 10 “0 12-53 || 545-0| 39.2 397-3| 39-0 | W Ss 0 09-29 || 551-4] 43-3 399-7 | 44-0 Wii EAS 13-86 || 551-8) 39-1 397-2] 39-0 H 10 O 08-97 || 558-5 | 43.2 399-5 | 43-8 WwW | 20 14.68 || 552-3] 39-0 399-9| 39:0 | W 4 0] 09-79 || 547-8} 39-0 407-7 | 39-0 H 18 0 || 25 06-93 || 549.4 | 42-8 393-6| 43-5 H 6 0 09-13 || 550-4) 38-8 || 405-6) 39-0 | W 20 0 07-40 | 548-2} 42-8 393-2| 43-5 H | y i 09-93 || 549-4 | 38-7 404-3 | 39-0 WwW 220 09-29 |) 544-1] 42-9 398-4) 43-6 WI 8 0 08-18 || 549-1} 38-7 || 403-1] 38-9 | W 23 0 10-43 || 541-2] 43-0 || 400.3] 43.7 || H 10 O 05-99 || 541-0] 38-5 || 405-5] 38-6 | W]22 0 0 12-13 || 539-8 | 43-0 401-0} 43-7 WwW | 1 0 10-00 || 542-0) 43-1 399-4) 43-8 H I 18 0 || 25 10-70|| 555-8] 37-3 394-7 | 37-7 H a 13-59 || 546-9 | 43-2 397-3 | 43-9 W 20 0 14-94 || 540-3} 37-0 |} 381-4] 37-3 | H 4 0 10-23 || 549.5 | 43-5 399-0| 44-4 H- 22 0 10-92 || 541-8) 37-0 387-2| 37-2 WwW 60 09-32 || 550-2| 43-7 || 394-8] 44-5 Wt 23 «0 11-30 || 540-8} 37-0 396-9 | 37-2 H 10 08-92 || 552-6) 43-9 393-6) 44-7 WwW ky *0'=0 13-14 || 543-5] 37-0 || 406-0] 37-5 | W Se! 09-19 || 552-4) 44-0 |, 395-6| 44-8 Wid 1 0 12-18 |) 545-01 37-1 406-1! 37-7 H 10 O 08-41 |) 553-6! 44-1 |! 392-0) 44-8 wt DECLINATION. Magnet untouched, Jan. 0¢—Feb, 154. | BririLaR. Observed 2™ after the Declination, k=0:000135. BALANCE. Observed 3™ after the Declination, k=0-000010. 4 DAILY OBSERVATIONS OF MAGNETOMETERS, JANUARY 22—FEBRUARY 2, 1846. 291 Gottingen BIFILAR. BALANCE. % | Gottingen BIFILAR. BALANCE, < "f ean Time || Decrrna- || ———__ ||... | & £ Mean Time || DECLINA- } ia £ TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°¢} of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2 °E rected. | meter. || rected. | meter. 5 1 tion Obs. rected. | meter. || rected. | meter. S i m. ° , Se. Div. ° Mice. Div. ® a Yh. “m. o , Se. Diy. & Mice. Diy. 2. 0 | 25 07-64 || 549-8} 43-5 384-1} 43-9 H |} 28 2 0} 25 15-17]) 537-4) 45-5 379-4| 45-8 WwW 20 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 22 0 08-06 |} 543-9} 42-6 388-2) 42-7 WwW 6 0 10-28 || 549-5) 46-5 397-1 | 46-9 WwW 23 0 09-39 || 541-5) 42-4 388-6) 42-4 H iO 09-29 || 549-1) 46-6 390-5 | 46-9 WwW 0 0 10-03 || 539-5| 42-3 390-6) 42-5 WwW 8 0 08-73 || 549-0| 46-4 383-1| 46-7 WwW 1 0 11-05 || 542-4] 42.3 389-4 | 42-7 H 10 O 07-29 || 547-9| 46-2 376-1| 46-3 WwW m \2 0 11-44 |] 546-6] 42.5 |) 391-7] 43-2 | W me 64: (C0 09-64 |} 547-2] 43-2 || 395-7) 44.2 | H 18 0O || 25 02-40} 546-7] 45-0 || 333-3] 45-3 || H | ‘ 6 0 09-08 || 552-5} 43-7 390-4! 44-5 Ww 20% 0) 07-40 || 543-3] 44-9 368-5 | 45-2 H me 67 C(O 08-61 || 553-1] 44-0 389-9 | 44.7 WwW 22 0 06-97 | 538-6| 44-9 376-9| 45-1 Ww 8 0 08-38 || 553-7 | 44-0 389-0 | 44-8 WwW 23 «0 09-29 || 536-5| 44-8 376-7 | 45-2 H |} 10 0 06-84 || 559-1} 44-2 385-1) 44-9 Wi{29 0 0 11-19 || 539-7] 44-9 373-0| 45-3 Ww Ln 0 11-62 || 542-9} 45-0 371-5 | 45-5 H - 18 O | 25 08-11 )) 553-2} 43-5 374-0} 44-0 H 2a 12-43 || 549-4] 45-2 372-5 | 45-7 H 20 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 y 22.0 19-86 || 537-9} 43-1 332-7 | 43-5 WwW 6 0 10-28 || 550-2) 45-9 381-9) 46-5 Ww fi 23 «0 13-99 || 538-2] 43-1 338-0) 43-3 H 7 0 10-20 || 551-2] 46-0 380-0 | 46-6 WwW }24 0 0 12-38 || 536-0} 42-9 365-8 | 43-3 W 8 0 09-62 || 555-5| 46-1 377-8| 46-7 WwW | ” 1 0 11-84 || 534-2] 42-8 377-6 | 43-3 H 10 O 08-32 || 554-5| 46-1 375-0 | 46-5 WwW i 2 0 13-93 || 538-6] 42-9 384-5 | 43-5 WwW | i 4 0 13-12|| 538-6| 43-7 || 400-2] 44-6 || H 18 0 || 25 08-41 | 553-8] 45-7 || 367-9] 46.0 || H | 6 O| 25 09-08 || 548-2} 44-6 400-6] 45-2 WwW 20 O | 08-28 || 546-4] 45-6 372-3] 45-8 H | m7 1t 24 49-54|| 512-8] 44-7 400-0| 45-3 WwW 22 0 | 08-29 || 543-1] 45-4 372-8| 45-6 WwW | — 8 O || 24 53-15 || 559-9} 44-7 403-4| 45-3 WwW 93-0 10-20 || 543-7| 45-3 371-9} 45-5 H } 10 O]} 25 02-12}| 533-7) 44-7 || 390-7] 45-2 | W]30 0 0 10-92|| 548-1] 45-3 || 373-6] 45-5 | W | Eps Te) 10-85 || 542-6] 45-28! 374-1| 45-5 || H 12518 0 | 25 08-41] 547-9] 47-0 || 372-2) 47-4 | H 250 11-51 || 547-3} 45-3 || 377-7] 45-9 | W 20 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 22 0 08-52 || 543-2} 47-0 376-2| 47-3 WwW 6 ) 10-27 || 554-6| 46-4 385-0} 47-0 Ww | 23. 0 10-00 || 542-3 | 47-0 376-2 | 47-4 H Fos0 09-74 || 548-8| 46-6 385-9} 47-2 W | 00 11-99 || 540-8} 47-1 382-2) 47-7 WwW 8 0} 25 08-88] 548-0} 46-7 386-5 | 47-3 WwW 1 0 12-85 || 540-1] 47-3 || 383-2) 48-0 || H 10 0 || 24 58-05 || 546-6] 46-9 || 385-1] 47-4 || W 2 0 12-43 || 542-1] 47-6 || 385-2] 48-3 || W 4 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 6 0 08-92 || 547-7| 48-6 374-0| 49-3 W 20 P50 08-88 || 553-3 | 46-8 366-7 | 47-3 H 7 °«0 08-72 || 547-7| 48-7 || 371-6) 49-3 || W PERRO) 09-33 || 543-2] 47-0 || 371-4] 47-5 || W 8 0 08-41 || 547-3] 48-6 370-0| 49-1 WwW 23 0 10-43 | 539-0} 47-2 375-9} 47-7 H 10 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 F 1 0 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 0 08-19 || 541-0} 47-1 370-5 | 47-2 WwW 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 7 KO) 09-29 || 548-7| 48-6 || 379-5] 49-3 || W 0 10-83 || 540-2] 47-0 370-6| 47-2 WwW 8 0 08-63 || 548-1 | 48-7 378-4| 49-4 Ww 0 12-11 |) 543-0] 47-1 369-9| 47-5 H 10 0 07-78 || 548-6| 48-9 374-6 | 49-5 Ww 0 14-17 || 547-9| 47-4 || 370-0] 47-9 | W 0 11-68 || 545-6] 47-8 375-3 | 48-5 H 118 0 | 25 11-77] 546-8) 43-1 375-2| 42.9 H 0 06-64 || 548-2} 48-2 378-3 | 48-7 WwW 20 0 07-52 | 544-9) 42-7 384-1] 42-3 H 0 08-21 || 550-5] 48-2 || 372-3] 48-7 WwW 22 0 10-65 | 543-0| 42-3 388-2] 41-8 WwW 0 07-74|| 549-7| 48-2 || 370-5] 48-6 || W 23 0 12-31 || 539-0} 42-1 387-9] 41-7 || H 0 02-69 || 549-8} 48-0 371-6} 48-2 WwW 2 10) = 0))|| 14-28 || 538-7 | 42-0 389-2] 41-9 WwW 1 O| 14-24 | 542-0) 42-1 395-2) 42-5 H 0 || 25 05-43 || 547-0| 46-3 || 360-8} 46-2 | H 2 0 14-58 |) 545-1| 42-4 || 401-0] 43-1 Ww 0 06-44 || 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 WwW 6 0} 07-62 | 544-9) 44-4 411-0} 45-1 WwW 0 10-50 || 541-6] 45-6 || 366-2) 45-5 H 7 0 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 Ww 0 15-44 1] 542-71 45-4 375-0! 45-5 H 10 0! 02-52 | 556-0 44-7 387-5 | 45-3 WwW a DECLINATION. Magnet untouched, Jan. 0'—Feb. 154. Birivar. Observed 2™ after the Declination, k—0:000135. BALANCE. Observed 3™ after the Declination, k=0-000010. + Extra Observations made. DatLy OBSERVATIONS OF MAGNETOMETERS, FrEpruary 2—12, 1846. Gottingen BIFILAR. Batance. |_| Gottingen BIFILAR. BALANCE. Mean Time || DECLINA- 2 -£| Mean Time |) Decrina- of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-|| 2°Z | of Declina- TION, _Cor- |Thermo-|| Cor- |Thermo- tion Obs. rected. | meter. || rected. | meter. 5 ‘*] tion Obs. | rected. | meter. || reeted. | meter. a (he “In: 2 J Se. Div. e Mie. Diy. 2 da oh m. Si Z Se. Div. 2 Mice. Div. . 218 0 || 25 06-43 || 549-8) 44-2 375-5 | 44-7 H 7 2 0} 25 13-59} 544-0] 42.7 389-1} 43-6 20 0 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 WwW 6 0 11-66) 543-9) 43-8 428-5] 44.6 23 0 11-84 || 541-9} 44-7 382-1) 45-3 H hl) 08-95 | 543-8) 43-8 423-3 | 44-6 3! Oe 11-21 || 538-2] 44-9 387-0 | 45-5 W 8 0 08-52 | 547-8] 43-7 412-3} 44.4 Pw) 11-86 |) 540-0} 45-1 382-4 | 45-8 H 10 0 08-75 | 548-8} 43-4 400-0 | 43-8 2) 30) 12:08 | 544-0} 45-4 381-7 | 46-2 WwW 4 0 08-72 || 540-6| 46-0 397-7 | 47-0 H 8 18 0 || 25 07-05 | 536-9} 37-1 387-1 | 36-6 6 0 08-61 || 550-7| 46-4 387-9 | 47-2 WwW 20 0 09-44 | 547-8| 36-7 388-6} 36-4 ¢120 08-41 || 551-1| 46-7 387-4 | 47-4 WwW 22 0 14-84 || 542-8] 36.4 397-1| 36-2 8 0 08-59 || 548-4] 46-8 386-7 | 47-5 W 23 Of 08-85 | 556-8} 36-4 395-1| 36-2 10 O 08-19 || 547-6] 46-8 || 384-1} 47-3 WwW 9 100.0 11-22 || 552-0} 36-3 400-4| 36-3 LOM) 09-46 || 547-8| 36-3 407-3 | 36-5 18 0 || 25 07-74 || 547-2) 44-4 378-1 | 44-3 H 2D 15-62 | 543-0} 36-4 414-3 | 36-7 20 0 08-41 |) 549-1} 43-7 379-7 | 43-2 H 4 0 11:05 | 540-7] 36-8 457-9| 37-2 220 10-53 || 551-4] 43-0 395-1| 42.4 WwW 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 <0 11-07 | 545-1] 37-2 415-9| 37-6 4 0 0} 11-34 }} 542-9] 42-5 394-1] 42-2 WwW 8 0 09-69 | 546-1) 37-2 413-1} 37-5 LeOs| 12-85 || 542-7 | 42.4 388-8 | 42-4 H 10 0 07-24 | 542-5) 37-0 410-6| 37-1 2,50 11-28 || 542-1] 42-5 389-7 | 42.8 WwW 4 0 09-15 || 541-0] 42-9 400-6 | 43.5 H 18 9 || 25 08-18 || 540-9| 34-7 402-4} 34-4 6 0 | 08-18 || 540-2| 43-2 394-7 | 43-8 WwW 20 0 08-14 | 542-4] 34.3 401-0} 33-9 JO) | 04-22 || 543-3] 43-3 400-1} 43-8 WwW 22 0 09-27 || 543-1 | 33-8 400-5 | 33-6 8 0| 07-99 || 548-6 | 43-2 398-8 | 43-7 WwW 23 0 09-44 || 544.2] 33.7 385-7 | 33-6 10 0 06-86 || 548-9] 43-0 390-6} 43-5 Wy] 10 0 0 08-11 | 546-1| 33-7 389-0] 34-0 | 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 H 2 0 09-80 || 555-9| 34.4 388-9} 35-2 20 0 08-14 || 549-0 | 41-7 385-1] 42-0 H 4 0 10-53 | 545-5} 35-4 395-1} 36:3 22-0] 07-84 || 544-7} 41-5 394-9 | 41-7 WwW 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 5. 208 10-36 || 541-0} 41-5 396-1} 41-9 WwW SnO 09-22 | 547-5) 36-6 398-8 | 36-6 1308 11-22 || 541-9} 41-5 394-2 | 42-2 H 10 O 08-19 | 545-3} 35-9 396-6 | 36-5 2 0} 11-61 |) 541-1} 41-9 394-1| 42-6 WwW 4 0 10-30 || 545-9} 42.6 391-1} 43-1 H 18 0 || 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 “ow 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 0 07-24|| 550-5 | 42-7 385-0 | 42-9 Will 0 0 10-38 | 545-0} 36-2 389-3 | 37-0 | Lo 10-90 || 549-1] 36-7 390-7 | 37-7 18 0 || 25 08-14|| 548-9] 40-7 386-0 | 40-7 H 2 0 11-44 |} 546-5 | 37-2 389-9] 38-4 20 0} 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 W 6 0 08-75 | 548-0} 39-5 390-2} 40-7 23 0 08-59 || 538-9] 39-7 398-9 | 39-5 H 7 0 08-46 || 550-4) 39-8 386-8 | 40-9 621050 10-68 || 538-8 | 39-6 396-4 | 39-6 WwW 8 0 07-18 || 546-5} 39-8 387-2} 41-0 ey) 12-01 |) 540-7} 39-6 402-4] 39-8 H 10 0 07-74 || 547-1] 39-9 385-8] 41-0 2° 0 12-22) 543-6 | 39-6 399-1] 40-1 WwW 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 WwW 20 0 08-46 | 548-4] 39-0 373-0) 39:3 7) 08-45 || 549-6} 40-4 402-9] 41-3 WwW 22 0 09-35 || 547-6] 38-7 369-0| 38-7 S50 08-43 || 550-7} 40-6 400-0} 41-5 Ww 23 0 11-89 || 544-7| 38-6 368-4) 38-7 10 0 08-80 || 550-3 | 41-2 398-3 | 42-2 Wwy]i2 0 0 15-01 || 539-5) 38-5 369-5 | 38-5 0) 13-90 || 545-1] 38-7 379-2] 39-3 18 0 || 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 WwW 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 70 08-79 || 560-8 | 43-2 377-:8 | 44-5 7 0 0 11-64 || 545-2} 42-5 383-0 | 43-2 W 8 0 08-75 || 550-9} 43-5 373-3 | 44-6 113 13-52 || 540-9] 42-5 388-8! 43-5 H 10 0 02-59! 555-3) 43-8 366-31 44-7 DECLINATION. Magnet untouched, Jan. 0?—Feb. 154, Biriwar. Observed 2™ after the Declination, s—=0-000135. BALANCE. Observed 3™ after the Declination, =0:000010. + Extra Observations made. Initial, Observer's Hinnidhied bikininddwndhiad dadduidgudndmn dadcnig Toots DAILy OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 12—23, 1846. 293 Gottingen BIFILAR. BALANCE. Eo Gottingen BIFILAR. | BALANCE. ie Mean Time || Dectrna- 2-2] Mean Time | Decurna- pS of Declina- TION. Cor. |Thermo-|} Cor- |Thermo-|| 2° | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 25 tion Obs. rected. | meter. |} rected. | meter. 5 a tion Obs. rected.| meter. || rected. | meter. 5 im dad h m, = ‘ Se. Div. 4 Mice. Diy. ns doh m y) 4 Se. Div. 2 Mic. Div. G) (1218 O || 25 07-32) 547-8| 42-0 365-9} 42-1 W/]18 2 0] 25 12-82|| 541-6| 44-0 | 372-7 | 44-7 H 20 O 07-54 || 546-2} 41-4 367-1} 41-1 WwW 4 0 | 25 12-48 || 543-7] 44.8 385-7 | 45-7 WwW 22 0 08-31 || 542-5] 40-9 371-7 | 40-8 H 6 0 | 24 59-64|| 555-7| 45-7 | 389-6) 46.2 H | 23 0 09-53 || 542-2} 40-7 371-2) 40-8 W 7 +O} 25 04-51|| 546-6] 45-8 | 385-6] 46-5 H io 0-0 11-01 | 544-7 | 40-7 373-1 | 41-2 H 8 0 | 25 04-91 |) 544-8) 46:0 | 385-5/| 46-6 H | 1 0 11-25 || 544-5] 40.9 379-7 | 41-7 B 10 0O | 24 59-70) 546-5| 46-5 | 355-9 | 46-5 H ] 2 0 10-83 || 546-8 | 41-4 380-4| 42-5 H ini 40 09-26 || 551-1} 43-0 382-0) 44-5 H 18 0 | 25 06-83) 547-2| 44-8 | 362-2/ 45-0 H 1 6 0 08-14 || 550-2} 44-5 377-4| 45-7 H 20 0 07-18 | 545-0| 44-5 || 364.0| 44.7 H | 7 0 09-22 || 552-7| 44-9 368-8 | 45-7 H 22:50 08-05 || 542-6} 44.3 | 371-1] 44-4 WwW | 8 0 09-06 || 552-7} 45-0 365-8] 45-7 H 23 «0 02-84 | 540-9} 44-1 370-6 | 44-5 H | : / 10 0 08-82 || 547-1} 44.8 370-3] 45-4 H}]19 0 0 10-48 | 540-1| 44-1 370-3 | 44.5 WwW é 1 0 10-94 || 542-4] 44-1 || 371-8] 44.7 | H | ! 18 6 || 25 04-71 || 549-7] 42-9 356-6| 43-0 WwW 2 0 10-94 || 544-4] 44.3 374-6} 44-8 WwW | 290 O 07-37 || 552-5] 42-6 359-3 | 42-8 W 4 0 08-72 || 548-5| 44-5 377-9 | 45-2 H ‘ 22 0 10-88 || 542-5] 42-3 358-7| 42-6 H 6 0 08-09 || 550-1} 44-7 374-7 | 45-3 Ww | 293 0 12-51 || 544-5] 42.3 355-0] 42-6 WwW 7 0 07-17 || 550-5 | 44-7 371-5} 45-3 WwW 14 00 13-79 || 550-7 | 42-3 358-8 | 42-7 H 8 0 08-72 || 551-4| 44.7 369-6 | 45-3 WwW 1 0 13-76 || 551-5} 42.4 364-7 | 43-0 H 10 0 07-89 || 551-6 | 44-6 365-1] 45-1 WwW | 2 0 14-96 || 550-6 | 42-6 368-0| 43-4 H | 4 0 12-78 || 572-2] 43.2 370-2| 44-0 W 18 0 || 25 06-37 || 548-3] 43-9 363-1 | 44-3 WwW mm 6 0 10-18 || 552-8} 43-7 372-1} 44-5 H 20 0 06-81 || 547-0} 43-7 362-9 | 44-0 WwW f - 7 0 09-39 || 556-0} 43-8 368-5 | 44-6 H 22™:0) 08-58 || 543-0| 43-4 364-5 | 43-6 H i, 80 09-05 || 558-9} 44.0 363-1} 44-7 H 23 0 09-56 || 541-3) 43-3 365-0) 43-5 WwW } 10 0 07-81 || 550-4} 44.0 373-0| 44-7 H {20 0 0} 10-60 || 543-6] 43-1 366-2) 43-5 H i 1 0 10-83 || 546-5] 43-1 || 365-9) 43-5 || H }15 18 0 || 25 07.47 || 547-7} 44.8 425-9! 45-0 WwW 2-0 10-63 || 550-2] 43-2 369-1 | 43-7 H | 20 0 16-65 || 555-0} 44-7 430-8 | 45-0 WwW 4 0 08-63 || 549-8| 43-4 371-7 | 44-0 WwW : 92 0 10-74 || 539-8) 44-6 400-3} 45-0 H 6 0 07-24 || 552-7| 43-6 371-3) 44-3 H 23 «0 14-50 || 528-5 | 44.7 413-0} 45-2 Ww To 07-78 || 553-6| 43-7 370-9 | 44-5 H 6 0 0 13-61 || 530-2] 44-8 || 421.4] 45-5 H 8 0 08-38 || 553-9| 43-7 370-6 | 44-5 H 10 11-89 || 532-0] 45-0 || 420-5] 45-7 H 10 ot 00-84 |} 552-6} 43-8 370-9 | 44-5 H 2 0 10-65 || 537-3) 45-5 383-3 | 46-3 B 4 0 08-10 || 559-2} 46-3 382-8 | 47-2 B 18 0 || 25 05-22) 549-4} 43-9 367-1) 44-5 WwW 6 O || 25 05-55]|| 551-2] 47-2 || 385-7| 47-5 H 20 0 06-84 || 552-4] 44-1 364-1) 44-8 Ww "f ot 24 49-48 || 533-8] 47.2 382-4! 47-7 H 22 0 07-38 || 548-9| 44-4 363-1 | 45-3 H 8 0 || 24 53-88|| 561-0} 47-2 || 363-8} 48-0 H 230 08-82 || 544-3) 44.9 365-2} 45-8 WwW 10 O || 24 57-62} 535-0] 47-3 354-5 | 47-7 H {21 0 0 09-76 || 547-3} 45-3 367-3 | 46-4 H , 1 0 10-54 |) 548-8 | 45-8 368-9 | 46-7 H 18 0 || 25 06-97|| 547-0} 45.9 || 348-8} 46-0 WwW 2 0 10-53 || 547-8} 46-3 372-2 | 47-3 WwW 20 0 07-35 || 543-4] 45-6 352-9} 45-6 WwW 4 0 09-56 || 548-7 | 47-3 376-5 | 48-3 B | 22 0 09-54 || 543-2) 45-2 || 355-3) 45-2 H 6 0 08-39 || 547-5} 48-1 380-4} 49-0 H 1 23 0 09-71 || 541-1} 45-1 355-1) 45-3 WwW 7 0 02-35 || 553-0] 48.2 382-2] 49.2 H 117 0 0 09-02 || 545-7| 45-2 | 357-5) 45-7 H 8 0 09-02 | 550-8} 48.3 371-8] 49-2 H | 1 0 10-54 || 547-7] 45.4 360-3 | 46-2 H 10 0 05-45 || 550-0) 48-4 | 369-0| 49.2 H | 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 0] 25 05-18 || 551-7) 49-8 || 343-3] 50-1 Ww m6 60 05-79 || 551-5 | 46-3 373-6 | 47-0 H 20 0 05-58 || 551-8} 49.9 342-1} 50-2 | W 7 0 07-13 || 548-3 | 46-4 || 369-7} 47-0 H 22 0 06-90 || 551-6] 50-0 347-0 | 50-3 H 8 0 08-56 || 550-5 | 46-4 || 367-1| 47-0 H 23 0 07-78 || 548-6} 50-0 349-9 | 50-4 WwW 10 O 00-44 || 542-9] 46-4 || 347-8] 46.7 H | 23 0 0 08-79 || 547-0} 50-1 348-5 | 50-5 H 1 6 08-68 | 550-6] 50-4 || 343-4) 50-8 H 0 || 25 05-77 || 545-6| 44.8 353-3] 44-8 Ww 2 0 07-98 || 550-1] 50-6 345-1} 51-2 H 0 06-21 || 547-4| 44-4 || 354.6} 44-3 WwW 4 0 08-36 || 549-1) 51-1 || 349-1) 51-9 | W 0 08-34 || 542-7 | 43-9 || 353-9] 43-9 H 6 0 08-43 || 549-3) 51-5 341-5 | 52-1 H 0 09-71 || 539-6 | 43.8 360-5 | 43-9 WwW 7 0 07-94 || 550-6| 51-6 341-8} 52-2 H 0 11-93 || 541-2} 43-8 362-9| 44-0 H 8 0 07-60 || 551-8| 51-6 341-2} 52-1 H 0 11-91 |) 544-1! 43-8 365-91 44-3 H 10 0 07-07 | 552-1! 51-4 343-8 | 52-0 H DECLINATION. Torsion removed, Feb. 154 2345, —9°; 162 534, +5°. Effect of + 10° of torsion =— 0’84. Birinar. Observed 2™ after the Declination, k=0:000135. BaLANce. Observed 3™ after the Declination, s=0:000010. ¢ Extra Observations made. Feb, 164 02h, Magnet with short scale in the declinometer box. 3*—5». Deflecting bar vibrated in the declinometer box. . AND MET. oBs, 1846. 4z Gottingen || Brriar. BALANCE. i] Gottingen BIFILaR. BALANCE. Mean Time s Mean Time || Drecuina- . of Declina- Cor- |Thermo-|) Cor- |Thermo- of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-' tion Obs. rected. | meter. || rected. | meter. tion Obs. rected. | meter. || rected.| meter. Initial. Observer’s S a Se. Div. Mie. Div. 5 25 12-87 || 550-8 : 341-9] 51-0 09-32) 550-9) 51- 383-1] 51-8 06-79 | 548-8 : 379-2| 52.2 07-37 || 550-7 : 369-5 | 52.2 06-76 |) 552-0 -6 ||. 368-0} 52-2 03.47 || 549-9 . 364-4 | 51-7 | Sc. Div. 2 Mic. Div.| 3 551-4) 50-7 || 339-0] 50-9 548-5 | 50-6 |) 340-0} 50-8 546-9 . 343-4 | 50-7 545-8 . 341-8} 50-8 548-1 . 342-4 | 51-0 549-9 : 343-0} 51-2 551-6 5 344-0 | 51-5 551-3 . 345-9 | 52-4 550-0 | 52- 332-6 | 52-2 551-9 . 337-9 | 52-7 552-9 . 338-8 | 52-7 550-1 ‘ 341-6 d. oocoocoE: 05-94 || 547-1 : 375-4 | 48-6 05-49 | 545-0 . 373-2 04-89 | 537-8 : 371-5 07-78 || 540-1 : 367-6 09-98 || 534-2 5 366-1 12-51 || 535-3 : 365-1 15-24 |) 544-3 . 365-2 11-54) 545-1 382-8 07-45 || 549-6 386-2 07-74 |) 551-8 D 375-9 07-57 || 552-0 : 372-6 06-43 365-9 coocooooooocos | 547-6 : 338-1 546-3 : 340-2 543-7 : 341-1 338-7 339-0 336-8 338-5 350-7 358-5 361-9 368-2 416-9 oeooocooocoococseoocoe 05-76 : 372-3 04-48 . . 378-5 05-35 . 375-7 07-98 5 : 372-1 10-90 . . 366-9 13-14 . . 362-9 13-59 : 369-0 10:74 2. 383-4 04-81 391-4 07-65 3. : 382.5 07-42 2. ‘d 377-6 06-23 : 371-0 ocooooococcococoo =- 375-9 379-0 376-6 373-1 369-5 365-8 371-9 400-2 401-9 418-0 418-3 382-4 cooocoooooecoeco 07-34 5 364:8 04-91 2 . 362-1 05-38 : 361-4 08-28 D 362-0 11-67 . . 357-0 13-93 . . 360-6 15-85 : : 363-4 11-27 : . 374-8 06-73 . . 379-6 07-17 q . 372-1 06-76 5 . 368-3 00-28 : . 360-5 mints Hse Meneses 0 0 0 0 0 0 0 0 0 0 0 0 353-2 352-3 348-3 348-4 352-4 350-6 359-6 373-8 370-1 365-4 366-7 361-7 cooooocooceceso 05-77 c 357:5 05-50 . : 366-1 07-91 D p 372-7 09-86 2- r 371-9 12-83 . 373:3 12-72 : : 373-4 13-59 a6: a 376-9 07-51 . c 385-6 07-40 : : 374-4 07-60 . “ 368-1 07-51 51: . 564-7 06-79 : : 361-2] 49-7 mas Hmmm s dededdshtdmm HomemeneSe Ss mista ecoocooooocececo 359-9 363-0 366-1 367-5 365-6 365-7 ming Mish s wothishtnsiss coocownwooooeoosc ooooco 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. Datty OBSERVATIONS OF MAGNETOMETERS, Marcu 5—16, 1846. 295 Gottingen BIFILAR. BALANCE. Mean Time || DEcLINA- of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- tion Obs. rected. | meter. |] rected. | meter. BIFILAR. BALANCE. DECLINA- TION. Cor- |Thermo-|| Cor- /Thermo- rected. | meter. || rected. | meter. Observer's Tnitial. Observer’s Initial. Se. Div. ae Mic. Div. a. 25 05-13 |) 539-8) 45-9 || 366-7 11 05-02 || 550-0) 44-9 || 373-4 07-54 || 542-4| 44-0 | 378-4 08-75 | 540-5 | 43-7 || 376-7 12-23 || 544-5 | 43-5 370-8 11-96 || 542-2 | 43-5 376-1 11-69 || 547-3} 43-6 || 378-9 08-82 || 552-7| 44-7 || 387-9 06-86 || 552-0} 45-6 || 385-1 06-90 || 553-4 | 45-8 || 383-6 07-13 || 554-6 | 45-8 || 380-8 06-76 || 550-8 383-5 Se. Div. a Mice. Div. 552-9) 48-0 || 364-3 558-9) 49-2 || 370-3 555-3| 50-4 || 366-5 559-4) 50-7 || 359-3 556-1) 50-7 || 362-1 549-1} 50-3 || 366-0 cooooocos 548-9 | 46-7 || 356-3 549-5 | 46-0 || 357-6 45-7 || 361-8 45-7 || 364-9 45:8 || 361-2 46-1 357°3 D 354-6 371-9 375-2 370-7 370-8 364-5 Seoooocoowsoocooos 05-79 |) 551-5 376-4 05-35 || 550-0 - 3728 05-82 || 544-9 “ 376-9 07-94 || 544-4 : 366-2 10-43 || 546-6 ‘ 364-1 11-96 || 549-7 370-2 12-33 || 552-2 . 375-0 10-30 || 551-0 D 386-1 06-57 || 552-7 B 381-0 08-08 || 555-3 j. 376-8 07-85 || 554-3 p 373-7 04-71 | 547-5 . 382-4 cooosooocece 352-4 349-8 348-8 331-7 328-3 341-0 363-2 437-1 575-5 472-1 454-9 396-5 coocooocoocooocoec“eo 05-63 || 548-8 | 373-6 05-06 || 546-7 D 375-9 05-49 || 540-5 D 381-5 07-00 || 538-4 : 383-4 09-73 || 540-0 . 383-1 11-74 || 542-9 380-2 11-88 || 545-2 ‘ 383-4 09-29 || 551-2 . 392-9 05-08 || 547-6 . 401-2 07-34 || 551-2 q 394-7 07-02 || 553-3 . 390-3 06-63 || 553-8 D 385-9 coooocoooocco 345-3 319-5 350:3 363-9 | 368-6 | 381-5 417-8 496-3 471-4 448-3 391-2 | 319-8 05-99 || 552-2 : 377-7 05-79 || 552-5 : 376-2 06-19 || 549-6 c 376-2 08-58 |) 548-5 . 376-0 11-55 || 549-6 “ 370-5 12-76 || 549-1 367-7 13-12) 552-2 E 372-0 10-56 || 552-8 5 382-4 07-11 || 550.4 . 381-0 08-09 | 550-3 5 375-4 07-31 |) 554-7 H 371-4 06-29 || 553-4 367-6 oooococoo oo 371-5 | 373-5 378-3 377-1 372-3 | 370-1 | 368-8 381-4 396-1 411-3 407-0 264-4] 46.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 05-79 || 552-6 : 360-9 05-13 || 550-1 ; 363-1 06-23 | 544-1 D 365-9 08-14) 546-5 . 367-1 10-51 || 546-4 366-6 11-37 || 550-3 : 362.8 coocoococoo Heist sseesetaersetsnes gdeseetensnhere Wether thaetas HHttSsnteesehes dedgmeudhdmm gmdmdmememe segemgegeene deggmeeeeges egdene | ocoooooco : DECLINATION. Magnet untouched, Feb. 16¢—Apr. 134. Birmar. Observed 2™ after the Declination, -=0-000135. BaLance. Observed 3™ after the Declination, s=0-000010. + Extra Observations made. 296 Gottingen | Mean Time | of Declina- tion Obs. ah. 16 17 ocooooos# oeocoeco hat a=. 18 oooocooconocso 19 ooocococecoo 20 eooocooosccoecoso 21 aoooocco Biriar. Observed 2" after the Declination, k=0-000135. DAILY OBSERVATIONS OF MAGNETOMETERS, MArcH 16—26, 1846. DECLINA- TION. 25 06-19 04-64 05-85 10-23 13-32 16:92 22-25 16-21 07-27 07-89 05-94 01-85 5 07-57 07-72 04-89 06-73 12-04 14-64 17-09 13-39 07-67 06-79 06-98 58-29 05-27 04-61 05-58 08-85 10-40 12-28 14-15 11-54 08-99 04-05 06-86 05-60 25 05-15 04-17 03-52 07-05 11-82 16-75 15-89 13-36 08-18 07-87 07-98 02-13 || 25 04-64 02-30 || 04-01 03-77 || 09-39 13-09 | % | Gottingen z-=] Mean Time 2°S] of Declina- S| tion Obs. a h. am. 1S EM CME OF °() | H AAEO || W 6 0 | H foe: | WwW 8 0] H 10 10 | W | H | 2218 0 Ww 20 0 WwW 22 0 WwW 23 0 Wi] 23 0 0 Lt 0 H 2-0 H 4 0 | W 6 0) H voO Ww 8 0 H 10 0O| Ww H 18 0 WwW 20 0 WwW 22° 0 WwW 23" 0 Wi] 24 0 0 20 H 2 0 H 4 0 W 6 0 H neo W 8 0] H 10 0 W H 18 0 WwW 20 0 WwW 22 0 WwW 23.0 Wi25 0 0} r 0 H 2°06 H 4 0 WwW 6 0 H old W 8 0 H 10 0 W H 18 0 WwW 20 0 H 22 0 H 23 0 Wi] 26 0 Of 1 0} | H 2 Of | et 4 0) WwW 6 0} WwW 7 0 W. 8 0 |B 10 5 DECLINA- TION. 25 14.37 11-00 09-37 07-84 04-55 | 06-06 | ° i I © = Se w © 25 25 25 BiFivar. BALANCE, Cor- |Thermo-|| Cor- |Thermo- rected. | meter. || rected, | meter. Se. Div. ° Mice. Div. 2 542-3 | 43-3 335-8 | 42-5 544-0] 42-2 | 353-6} 41-2 536-8 | 41:3 || 367-3} 40-4 534-7| 41-0 | 368-1) 40-4 529-2| 40-8 || 379-1 | 40-4 524-2| 40-7 | 401-8} 40-4 537-4| 40-6 || 422-1| 40-4 556-4) 40-6 || 430-7) 40-8 544-8| 41-0 || 439.7] 41.4 552-1| 41-2 | 424-6} 41-4 543-6} 41-3 || 423-4! 41-3 542-1| 40-9 || 333-0| 40-9 549-4 | 38-8 352-8 | 38-5 533-0| 38-4 379-8 | 38-2 536-3 | 38-1 390-7 | 37-8 528-9 38-0 381-3 | 38-0 517-8| 38-2 388-3 | 38-5 542-0) 38-7 385-8 | 39-2 539-9 | 39-1 389-9 | 40-0 541-8 | 40-2 410-0; 41-0 549-5 | 40-5 398-3) 41-1 548-6) 40-4 395-7| 40-9 550-7 | 40-1 387-4| 40-5 574-8 | 39-6 364-9| 39.7 543-9] 35-3 376-8| 34-0 540-4 | 33-7 380-7 | 32-2 533-2 | 32-4 377-5 | 30-9 530-0} 32-0 375-5| 31-0 531-1) 31-9 377-3| 31-4 534-3 | 32-0 381-8} 32-3 543-9 | 32-6 387-4| 33-4 550-4| 35-0 406-1} 36-4 550-4) 37-3 404-8 | 38-2 594-7 | 38-0 404-3 | 38-7 550-9 | 38-2 394:8| 38-7 557-9 | 37-9 378-8| 38-3 548-6 | 35-3 373-8 | 35-1 548-1} 34-6 379-1} 34-2 534-1) 34-2 377-7 | 34-0 529-2| 34-2 376-9 | 34-4 527-8} 34:3 374-9| 34-8 534-3) 34-8 375-2| 35-6 539-6 | 35-4 379-7 | 36-6 552-3 | 37-2 389-9| 38-5 555-5 | 39-1 398-5 | 40:3 553-4| 40-0 399-2| 41-0 552-9 | 40-2 391-3 | 41-0 556-6 | 39-8 375-4| 40-3 547-4| 35-5 365-8 | 34-8 545-9} 34-8 375-1) 34-5 538-7 | 34-7 371-9! 34-4 539-2} 34-6 368-4| 34.6 540-8 | 34-7 365-4| 35-0 540-6! 34-9 369-7! 35-5 DECLINATION. Magnet untouched, Feb. 164—April 134, Observed 3™ after the Declination, k=0-000010. BALANCE. } Extra Observations made. BIFInaR, Batance. |l% . : act Cor- |Thermo-|| Cor- |Thermo- 3 = rected. | meter. || rected. | meter. 5 i Se. Diy. io | Mic. Diy. 2 539-8) 35-1 371-9} 35-7 WwW 547-7 | 35-4 388-5 | 36-0 H 552-7! 36-0 599-4 | 36-8 W 558-4) 36-3 397-8) 37-1 WwW 552-0} 36-5 403-0) 37-2 WwW 548-1} 36-6 | 397-1] 37-2 || W 551-1} 38-3 365-0) 38-2 | H 547-2) 37-8 371-8 | 37-5 H 534-8 | 37-4 376-2| 37-5 W 533-7 | 37-5 370-1} 37-8 H 534-5 | 37-8 365-4} 38-5 | WwW 538-3 | 38-4 365-6 | 39-5 H | 542-8} 39-0 371-3} 40-3 Ww 550-7 | 40-2 380-3] 41-5 H 562-0| 41-2 377-7 | 42-4 WwW 559-9| 41-6 || 375-6) 42-6 || W 557-7 | 41:7 376-1 | 42-8 Ww 553-4) 41-8 373-9| 42-6 WwW 549-9 | 40-7 363-3 | 41-2 H 548-4 | 40-4 367-4 | 40-7 H 531-5 | 40-3 367-7 | 40-8 WwW 534-4 | 40-5 370-3 | 41-3 WwW 535-0 | 40-9 363-6 | 41-9 WwW 538-9 | 41-6 364-3 | 42.7 B 544-8 | 42-3 363-5 | 43-6 WwW 561-0) 44.0 370-1 | 45-5 H 557-9 | 45.5 378-4| 46-6 WwW 548.7 | 45-8 384-3] 46-8 Wii 554-9 | 46-1 385-0 | 47-0 WwW 554-5} 46-0 | 370-9| 46-7 | W 550-7 | 43-2 356-7 | 43-3 H 551-4] 42-7 || 359-4] 42.5 || H 537-1 | 42-2 || 359-0] 42-2 || W || 532.0] 42-0 || 358-2} 42.2 | H 533-9 | 42-1 349-3 | 42-6 WwW 537-4 | 42-3 345-3 | 43-0 B } 547-0 | 42-7 350-8 | 43-7 Wit 555-7 | 44-0 362-9 | 45-2 H | 557-6 | 45-7 || 368-6| 46-8 | W 560-9 | 46-4 363-4 | 47-3 WwW 560-2) 46-8 356-5 | 47-5 WwW 560-4} 46-9 || 353-3) 47-3 | Ww 553-7 | 43-5 347-9 | 43-3 | H 553-9 | 42-7 346-9 | 42.2 H 544-6 | 42-1 354-8 | 41-9 WwW 543-0 | 42-0 348-2) 42-0 B 524-2} 42-0 353-7 | 42-3 B 541-3| 42-3 || 349-0} 43-0 | H 563-9} 42-8 | 354-6] 43-6 WwW 556-2| 44-0 395-1) 45-6 H 555-0} 45-3 379-6 | 46-2 | WwW 551-2| 45-6 375-8 | 46-4 | WwW 553-0 | 45-6 374-8 | 46-5 WwW 553-8! 45-6 353-7) 46-1 ' W Daity OBsERVATIONS OF MAGNETOMETERS, Marcu 26,—Aprit 6, 1846. 29 Géttingen BIFILAR. BALANCE. [eo Gottingen BIFILAR. BALANCE. ee Mean Time || Drctina- >=] Mean Time || Dectina- || ——— bE of Declina- TION. Cor- |Thermo-|| Cor- /Thermo- 2 ‘a | of Declina- TION. Cor- |Thermo-|} Cor- |Thermo-|| 8 5 tion Obs. rected. | meter. || rected. | meter. |S“ tion Obs. rected. | meter. || rected. | meter. || 5 h m. ~ te Se. Div. = Mic. Div. = d. 1 3 % Se. Diy. + Mic. Diy. x 18 0 || 25 06-29) 552.6) 43-2 || 349-5) 43-3 H 1 2 O} 25 16-35 || 544-0} 46-1 332-8 | 46-7. || W 20 0 04-58 || 548-1] 42-8 | 357-4) 42-8 | H 4 0 12-40 || 555-1 | 46-4 || 350-6} 47-2 H 22 0 03-20 || 535-0} 42-6 || 366-3| 42.8 WwW 6 0 07-72 )| 551-7 | 47-1 372-2| 47-8 WwW 23 0 08-01 || 529-4) 42-7 || 362-8) 43.0 || H 7 0 06-86 || 553-5 | 47-3 374-6 | 48-0 || W 0 0 09-77 || 536-1} 42:8 || 360-8) 43.4 || W 8 0 07-81 || 556-1 | 47-4 366-8 | 48-0 || W | m1 0 13-52 || 542-7 | 43-1 361-5] 43-9 B 10 0 06-03 || 555-2) 47.4 361-8] 48-0 || W | 20 14-37 || 549-7| 43-7 || 363-3) 44.6 || W 4 0 09-39 || 550-6] 45-0 || 389-5] 46-0 B 18 0 || 25 09-53 || 562-1) 46-2 || 332.2) 46.4 H } 6 O/}| 25 06-01|| 561-8] 46-2 || 382-1} 47-1 WwW 20 0 03-94 || 552-3) 45-8 || 342-0] 46-0 H 7 0} 24 59-16 ]] 543-0] 46-7 || 388-9} 47.4 WwW 22 0 04-78 || 536-6] 45-9 || 354.4] 46-3 Ww 8 0} 25 03-48 || 554-8) 46-9 || 378-2) 47-5 || W 23" 3 05-99 || 534-0} 46-3 || 349-8] 46-9 || W i 10 0 06-90 || 554-0} 46-8 | 361-6) 47-2 | W 2 Oero 10-21 |) 536-1] 46-8 || 340-2) 47-7 || W he | 1 0 14-96 || 534-9] 47-4 || 332-6] 48-5 H i} 18 0 | 25 05-02]) 551-4] 44-4 || 351-6| 44-3 | H 2 0 16-25 || 538-4] 48.3 341-6] 49-5 | W | 20 0 02-45 || 547-9] 43-8 || 356-8| 43-7 || H 4 0 11-48 || 555-3 | 50-3 356-9 | 51-5 H 22 0 03-50 || 530-6} 43-5 || 356-7 | 43-5 WwW 6 0 07-74 || 562-3] 51-4 |} 349.9] 52-5 Ww 23 0 07-47 || 521-0) 43-4 || 353-6) 43-7 H a0) 06:70 || 561-3| 51-7 || 346-4] 52-6 || W 0 0 12-67 || 526-5} 43-6 || 346-0| 44-1 WwW 8 0 06-79 || 558-8} 51-8 345-7 | 52-5 WwW 1 0 16-59 || 535-0 | 43-8 || 345-9) 44.5 B 10 0 06-66 || 559-8] 51-4 || 332.1] 51-8 | W 2 0 15-65 || 545-0 | 44-2 |) 357-0| 45-0 || W 4 0 12-31 || 548-3 | 45-0 |) 381-6| 46-0 H 18 0O | 25 04-14] 554-4] 49-0 || 347.5] 48-9 H 6 0 07-13 || 556-2| 45-7 |) 389-6| 46-3 || W 20 O 00-50 || 553-2} 48-5 349-7 | 48-3 H a 0 07-34 || 557-9| 45-9 || 372-6) 46-3 WwW 22>.0) 07-34 || 543-7] 48-0 || 331-6] 47-7 || W 8 0 07-20 || 556-2] 45-9 || 368-2) 46-2 || W 23) 0 10-43 || 535-5] 47-9 || 331-3} 47-5 B 10 0 05-52 || 553-5| 45-4 || 361-9) 45-4 || W 3 0 0 13-46 | 537-7] 47-7 || 318-7| 47-4 WwW s 1 0 14-70 | 542-2} 47-7 || 324.1) 47.2 H 0 || 25 06-06 || 554-3} 41-8 || 353-3) 41-7 H 2 0 16-36 || 545-9} 47-4 326-9 | 47-1 WwW 0 02-15 || 549-0] 41-3 || 360-3) 41-3 H 4 0 13-19 || 547-1] 47-2 || 346-4| 47.0 H 0 04-35 || 533-0] 41-2 || 364-6) 41-4 | W 6 0 07-17 || 555-7 | 47-1 364-6 | 46.9 || W 0 08-48 || 526-6} 41-2 |) 358-9| 41-8 H 7210 06-10 || 553-8] 47-0 || 362-8] 46-8 || W 0 10-72 || 527-5 | 41-7 || 352-3) 42-7 || W 8 0 06-61 || 553-1) 46-9 || 355-7] 46-6 || W 0 18-63 || 529-1] 42-5 || 350-1/ 43-9 H 10 0 05-94 || 550-9} 46-3 361-7 | 45-7 || W 0 19-88 || 538-5 | 43-6 || 351-9} 45-0 || W ot 05-32 || 561-1] 45-7 || 394-3} 47-2 H 18 0 | 25 04-21 || 550-7} 42-2 || 365-7] 41.2 H 0 08-68 || 550-9] 47-5 | 387-8| 48-7 || W 20 O 02-08 || 548-7} 41-2 || 376-3] 40.2 || H 0 08-18 || 555-8} 47-9 | 373-4) 48-8 || W 22 0 01-48 || 534-3] 40-7 || 380-8] 40-1 WwW 0 05-62 || 555-4) 48-1 373-3 | 48-7 || W 23 0 04-41 |) 532-0) 40-7 |) 382-1] 40.5 H 0 06-23 || 554-1] 47-6 || 362-2) 48-1 Ww 4 0 0 07-67 || 531-5] 40-9 || 375-1] 41-1 B 1 0 14-40 || 539-8 | 41-3 358-2] 41-8 B 0 || 25 05-52)| 552-4) 44-8 || 357-1| 44-7 H 2 0 17-39 || 546-7) 41-8 || 355-4| 42.4 B 0 01-95 || 549-3 | 44-1 364-3 | 43-5 H 4 0 13-32 || 557-0} 42.3 371-5] 43-0 || H 0 02-05 || 536-1} 43-4 || 363-8| 43-2. || W 6 0 06-59 || 552-6] 42-6 || 397-8| 43.0 Ww 0 05-85 || 532-4] 43.2 || 360-9} 43.3 H 7 0 04-07 || 549-2] 42-5 || 412-6] 42.8 || W 0 09-76 || 530-2| 43-3 || 350-8| 43-7 || W 8 0 06-54 || 554-7} 42.3 397-2] 42-5 || W 0 13-64 || 533-6] 43-7 || 350-1) 44-5 H 10 0 02-77 || 554:2) 41-9 || 389-4] 42.0 || W 0 16-75 || 539-0] 44-3 || 351-3| 45-2 | W 0 11-98 || 552-4] 45-7 || 363-9| 46-7 H 5 18 0 || 25 04-73) 548-1] 40-2 || 338-1] 40-2 || W 0 07-74 || 554-3] 46-7 || 367-0| 47-5 || W 20 0 02-48 || 551-2] 39-9 || 340-6| 40.0 || W 0 07-74|| 557-7| 46-9 || 364-8| 47-7 || W 22 0 03-60 || 543-7 | 40-0 || 358-2) 40.4 H 0 07-38 || 558-9| 47-0 || 360-3) 47-7 || W 23 0 07-94 || 535-4 | 40.3 361-6} 41-0 || W 0 06-83 || 558-8] 47-0 || 356-5| 47-5 WwW 6 0 0 18-60 || 530-2) 40-9 || 367-3) 42-0 H 1 0 17-09 || 536-3) 41-5 368-0} 42.4 B 0 | 25 04-14)) 555-5] 45-7 || 348.4| 46.0 H 2 0 16-33 || 554-7) 42-0 || 402-4) 43-1 Ww 0 03-25 || 549-8 | 45-4 |) 349.1| 45.7 H 4 Of| 25 20-90)|| 585-6] 42-8 || 432-3] 43.7 H 0 02-96 || 539-4] 45.6 || 352.2) 46-0 || W 6 Of| 24 56-37 || 582-4] 43-2 |) 524-4| 44.1 H 0 03-40 || 556-5| 45-7 || 352-9} 46.2 H 7 +O || 25 11-98] 566-0} 43-3 507-2) 44-1 H 0 11:79 || 525-6| 45-9 || 339-7| 46-4 | W 8 Of] 24 46-19 | 942-7) 43.3 462-7 | 44-0 H 0 16-41) 541-51 46-0 || 332.4! 46-6 H 10 Of! 25 15-31! 431-3] 43.3 84-0| 44-3 H |) oe DECLINATION. Magnet untouched, Feb. 164—April 134, Brrizar. Observed 2” after the Declination, k=0:000135. BALANCE. Observed 3™ after the Declination, s=0-000010. t+ Extra Observations made. MAG. AND MET, ozs, 1846. Aas 298 DaAILy OBSERVATIONS OF MAGNETOMETERS, APRIL 6—16, 1846. Gottingen | | Brrmar. BALANCE. | | Mean Time || Decuina- |! of Declina- | TION. Cor- |Thermo-|) Cor- |/Thermo-| tion Obs. | rected. | meter. j pacteu meter. So. Diy. 2 Mie. Div. a 535-9 42-1 260-7 | 42-2 01-86 || 543-8| 41-7 342-1 | 41-8 15-39 |) 516-8| 41-4 || 366-9) 41-7 10-31 | 538-1) 41-6 361-3) 41-6 12-80 || 538-0} 41-7 || 366-1 | 41-7 13-25 | 544-4] 42-0 374-4) 43-0 13-16 || 541-2| 42-4 || 376-4] 43-3 06-51 || 552-8) 42-8 || 391-2} 43-7 06-03 || 551-0} 43-3 | 404-4) 44-2 53-17 || 561-7 | 43-4 || 419-0} 44.3 02-19 || 549-6} 43-5 || 409-4| 44-5 03-40 || 540-6 384-3 Gottingen BIFILAR. BALANCE. Mean Time || Deciina- of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- tion Obs. rected. | meter. || rected. | meter. 8 o Se. Div. ie || Mie. Div. ° 25 17-42 || 533-0] 44-5 354-1} 45-2 13-69 || 540-9} 45-3 368-3} 46-0 09-87 || 568-7 30 | 367-4| 46-7 02-99 |) 555-1 . 389-4 | 47-0 05-15 || 561-2 : 380-3 | 47-2 07-78 || 555-8 -6° || 361-0) 47-2 Observer’s Initial. a. he 6 18 20 22 23 11 — ococoecos 02-55 || 549.4 . 338-0] 50-2 59-98 || 547-1 “ 337-9| 50-0 03-35 || 532-2 E 336-9| 50-0 05-69 || 533-4 -O |) 332-3} 50-3 13-30 || 522-5 . 331-6) 50-5 16-52 || 541-3 E 329-7| 51-0 16-75 || 545-3 : 345-9| 51-7 17-89 || 559-5 | 52. 369-8 | 52-9 16-28 || 567-0 ‘ 426-0| 54-0 13.72) 555-9| 53- 470-8 | 54-5 02-80 || 553-9 . 452-7| 54-7 10-06 |] 553-3] 53- 266-9 —+ eseceoeoosocoos: SCaONOGOrPNRE CO 07-96 || 550-3 301-1 04-64 || 538-3 : 350:8 06-26 || 930. D 375-1 06-53 ‘ D 373-1 10-27 : 370-9 13-32 h . 376-1 15-44 c ' 379-8 10-63 C . 386-3 06-79 ‘ 390-1 03-67 : < 399-9 59-64 : : 395-9 06-19 ° 379-8 = eooocoeococoecos 02-40 || 546-5 : 332-0 00-60 || 543-8 : 341-7 01-54 || 535-9 E 341-9 05-98 || 533-1 D 341-4 10-99 |) 533-1 : 343-1 16-32 || 531-0 : 344-6 16-91 || 536-8 . 348-8 14-51 | 561-3 . 358-8 07-35 || 551-6 . 360-5 06-07 || 559-5 : 353-9 03-93 || 562-2 . 370-1 48-27 || 554-6 : 342-6 ececoococecoocooso 04-48 = 354-1 00-96 : : 365-2 02-08 . c 364.7 05-35 || 526- ‘ 367-8 08-83 26- : 370.2 13-16 . : 368-8 14-15 “ : 370-7 11-34 3-2 : 374-3 05-90 “6 p 375-7 05-03 57+ D 372-0 04:51 3. C 371-0 04-95 3. “ 366-5 4heg4 Seteseese ss mie at | qgooocococooecscs ——s 01-04 || 552-7 . 332-6 01-49 |) 548-9 5 333-7 01-68 || 530-2 : 343-6 05-35 || 529.3 : 342-9 13-23 || 533.7 : 338-9 15-88 || 530-3 5 339-7 17-83 || 546-3 : 342-7 16-15 || 540-0 E 370-8 09-08 || 554-8 : 373-3 06-06 || 561-4 D 378-2 00-87 || 551-4 ‘7 || 384.3 59-90 || 544-0 5 | 374-6 coocoocoococecoo 0 1 2 4 6 if 8 0 _ _ ie} 05-42 b ‘ 355-5 02-59 : 3. 363-9 02-13 “2 . 370-0 05-53 : y 367-1 08-65 * . 363-8 11-12 ‘ : 358-7 13-22 H : 354-2 12-96 y “ 360-1 05-83 b . 399-7 07-84 ‘ ‘ 411-7 02-37 D . 443-8 05-70 . D 383-2 www wo CONOGRNRF OW qooocoocoocecs 04-04 || 549-7} 48- 302-4 07-32) 546-4| 47-8 || 278-0 08-82 |) 515-6} 47- 321-6 08-82 || 505-9| 47- 340-3 15-02) 524-3) 48-0 | 409-4 19-10 | 529-4] 48. 394-0 19-51 || 548-6} 48- 412-5 15-94 || 566-2) 49-7 || 490-5 | 25 10-80 || 560-2} 50-6 | 501-2 | 24 59-32)| 591-9] 51-1 | 458-3 | 25 00-53 || 557-6| 51-3 || 427-1 | 24 44-73 || 585-51 51-6 || 253-9 oscooococoeocooooco ~ 06-64 . : 261-0 03-25 . . 291-1 05-72 ’ f 325-7 08-28 || 523-0! 44. 328-8 11-00} 526. 2 || 339.1 14-37 || : . 347.6| 44.8 oeoocooeceo www =OowNoo avooc - cS medmss HHmmSenttinseses gems i} DECLINATION. Torsion removed; Apr. 134 22}, + 3°; 144 8h», + 8}°; 144 20%, + 32°. Effect of + 10° of Torsion, =—0"84. Biritar. Observed 2™ after the Declination, —0:000135. BALANCE. Observed 3™ after the Declination, s=0:000010, —~- Apr. 134 235144 7b, Magnet with the short scale in the declinometer box; 144 74» the deflecting bar vibrated in the declinometer ] box. See Introduction, p. xvi. + Extra Observations made. DarILty OBSERVATIONS OF MAGNETOMETERS, APRIL 16—27, 1846. 299 | Gottingen BIFILAR. BALANCE. % | Gottingen BIFILaR. BALANCE. % wf “Mean Time || Dectrna- | ||__,____|| £. 3} Mean Time |} Decuina- Fa of Declina- TION. Cor- |Thermo-| Cor- /Thermo-|| 2°2] of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-| 2°3 | tion Obs. rected. | meter. || rected. | meter. ||S5'~] tion Obs. rected. | meter. || rected.| meter. |5~ Sein. m.|) ° ¢ Se. Div. ° Mic. Div. ° & Th.’ em: Py init Se. Div. 5 Miec.Div.| ° | 116 18 0 | 25 03-09]| 550-1) 50-7 || 288-4] 50-8 || W ] 22 2 0] 25 15-27] 545-5) 44-7 || 352-5) 45-3 | Ww 20 OF} 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 | W 7 0 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 0 | 06-32 || 554-6] 47-3 || 384-4] 47-2 H 2 0 16-80 || 539-1) 50-0 || 356-8) 50-5 H | | a 40 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 0 01-04 || 541-1] 44-9 | 369-2) 44-8 || W = 7 0 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 0 05-32 || 532-4) 45-1 358-0| 45-5 || W | 10 0 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 OO] 11-95 || 540-4] 45-7 || 350-3] 46-2 || H | 18 0 || 25 04-64]| 544-1) 48-6 | 346-9] 48-5 | W 2 0|| 14.84 || 541-3] 46-0 || 350-1| 46-7 || H 20 0 00-84 || 543-8| 48-3 || 356-4] 48-1 WwW 4 0 09-82 || 552-1] 47-0 || 357-2] 47-8 | W 22 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 23 0 05-27 || 528-9| 48-0 || 356-2] 48-3 | W 7 0 06-17 || 558-7} 47-7 || 361-5] 48-3 || H 18 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 | H e210) 12-51 || 527-3] 48-3 | 348-3] 49.0 || H 10 0 | 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 0 02-25 || 554-0] 45-7 || 357-4] 45-8 | W 7 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 8 0 06-14 || 558-1] 49-8 || 372-2] 50-2 H 23 0 04-84 || 534-1] 45-7 || 360-2] 46-0 | W 10 0 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 1 0 13-29 || 536-7| 45-9 || 351-4] 46.2 | B 18 O || 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 23 0 05-52 || 532-2] 44.3 || 351-5] 44-7 || W 7 0 06-43 || 573-9] 46-4 || 382-2] 46-8 H 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 0 12-11 || 535-0} 45-2 | 345-8] 46-0 H 10 0 | 06-23 || 564-0} 46-5 || 360-6| 46-7 | H 0 13-81 || 536-4] 45-8 | 346-2] 46-7 H | | 0 11-91 || 542-7] 47-4 || 358-2] 48-3 || W 18 0 | 25 08-48 || 549-6] 46-0 | 285-7] 46-1 | W ) 09-02 || 557-0} 48-7 || 357-3) 49-5 H 20 0 05-82 || 544-1] 45-8 || 313-0) 46-0 || W 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 0 00-85 || 563-5] 49-7 || 390-5] 49-8 || W 23 «0 05-79 || 529-5] 46-4 || 348-7| 47-0 || W 0 04-58 || 556-8| 49-4 || 370-9| 49-2 | H | 25 0 O 08-86 || 531-8} 46-9 || 350-6] 47-7 B 1 0 12-38 || 533-2| 47-5 || 352.6] 48-5 | H 0 | 25 02-42) 547-2} 45-8 | 359-6] 45-1 WwW 2 0 14-64 || 544-8) 48-2 || 353-7) 49-4 | H 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 1) 04-46 || 534-2} 44-6 | 363-0] 44.5 H 6 0 07-40 || 557-4} 51-1 370-0} 52-2 | H 0 06-03 || 531-0} 44-6 || 362-1] 44-7 | H 7 0 06-21 || 565-7} 51-7 || 365-8) 52-4 | H 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 0 12-31 || 540-1} 45-5 || 343-7] 46.2 B 10 0) 04-42 || 556-0] 51-5 || 360-0] 51-7 | H 0 14-15 |) 542-3) 46-2 || 344-1] 47-2 || H | 0 11-21 || 550-5] 47-5 || 357-9| 48-3 | W] 26 18 0 | 25 03-09|| 549-2] 43-4 || 355-4) 42-2 | W 0 07-98 || 541-1} 48-2 | 357-3] 48-8 H 20 0 03-06 || 548-1) 42-7 || 358-4] 41-7 | W 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 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 0 06-79 || 555-3} 47-9 || 359-5] 48-3 H }|27 0 0 10-31 || 528-0] 42-8 || 372-3] 43-1 | H 1 0 11-88 || 537-6] 43-2 || 364-3} 43-7 H 0 || 25 02-39 || 543-8] 45-0 || 344.9] 44-4 || W 2 0 15-14}) 552-4) 43-5 || 370-9| 44.2 | H 0 04-49 || 552-1] 44-3 || 342-9] 43.8 | W 4 0 07-34 || 550-1] 44-3 || 399-7] 45-0 | W 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 4 06-53 || 532-4] 44.0 || 362-6] 44.3 | W 7 0 06-27 || 562-8| 45-2 || 393-1) 46-0 | H 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 0 15-781! 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. Birizar. Observed 2™ after the Declination, —0:000135. BALANCE. Observed 3™ after the Declination, k=0:000010. t+ Extra Observations made. 300 Gottingen Mean Time of Declina- tion Obs. DAILY OBSERVATIONS OF MAGNETOMETERS, DECLINA- TION. BIFI LAR. BALANCE. Cor- rected. Cor- rected, ‘Thermo- meter. eooocos —] cocooococoeceso 0 0 0 0 0 6 0 0 0 0 0 0 ceocoeoceo eceocoscocecoce ocoooocos 08-38 11-01 12-90 09-35 06-81 05-96 06-16 05-15 5 02-35 01-58 01-88 03-32 14-18 10-30 12-15 12-08 09-60 08-21 08-01 06-59 00-89 01-68 03-63 05:80 10-01 11-77 13-52 10-23 09-02 07-20 06-53 05-89 03-50 04-56 05-06 07:31 09-53 12-45 13-36 10-81 06-03 06-06 06-23 05-79 03-02 03-23 03-14 06-21 08.34 11-10 Se. Div. 547-6 540-8 532-7 526-1 526-9 534-2 543-5 551-7 558-1 561-5 559-9 558-7 550-0 546-5 539-8 532-7 541-3 536-4 553-0 554-3 557-4 560-1 563-8 559-7 Mic. Div. 361-3 369-6 376-8 377-0 373-0 366-7 362-5 371-1 376-1 377-8 375-4 365-8 365-5 368-9 376-2 373-9 369:8 368-0 367-4 360-0 373-0 374-1 360-6 355-1 341-9 346-1 304-4 357-2 361-5 350-8 347-7 368-0 373-9 369.4 368-8 358-4 351-0 355-2 353-9 353-3 349-3 339-8 336-5 350-0 358-4 357-7 353-7 346-6 342-9 342-0 337-4 339-3 333-3 | 321-7 Thermo- meter. 43-0 42-5 43-0 43-6 44-4 45-2 45-7 46-7 47-5 47-7 47-8 47-5 Observer's Initial. mtd d BEES pee ese sess = Hem eSehohetaes ERE Gottingen Mean Time of Declina- tion Obs. | re ococoooe eS eoocococcoceoo + uo coocooonmooooceo eoocoocooocooceqococe coococoecoceo Aprit 27—May 7, 1846. DECLINA- TION, 11-86 10-61 08-08 06-90 59-83 05-23 07-00 59-74 05-32 07-78 13-16 15-78 18-92 21-32 12-23 08-28 04-88 51-59 03-06 02-84 05-72 07-27 10-41 13-16 15-25 13-57 09-17 07-37 04:75 03-70 05-47 03-70 04-21 05-22 08-73 10-75 11-42 09-35 07-67 07-00 02-64 03-84 59-57 5 00-57 04-66 06-76 10-47 13-72 |) 14-11 11-01 04-04 04-98 02-79 02-19 |) H BIFIvaRr. BALANCE. Cor- rected, Se. Div. 540-6 557-4 561-1 568-6 563-9 559-0 522.4 545-0 531-7 528-6 532-8 537-6 551-2 579-3 564-0 569-4 573-1 490-4 529-1 943-5 535-7 533-6 535-8 536-7 540-5 557-2 564-9 578-4 560-9 546-4 544-0 533-8 533-8 530-6 532-7 548-4 543-1 552-0 566-6 555-9 570-5 548-7 544:3 538-1 541-6 537-6 541-2 536-1 548-5 557-2 577-7 564-3 559-0 547-0 Thermo- meter, 54-8 Cor- rected, Mice. Div. 312-9 340-9 366-6 377-3 388-5 376-4 300-9 297-5 322.9 327-4 328-1 330-6 335-6 418-1 487-4 460-5 504-2 291-1 234-7 293-3 323-2 332-0 327-0 327-8 338-6 356-9 419-1 427-8 420-7 393-9 285-4 333-6 356-4 367-7 Thermo- meter. 55-9 57-5 57-7 58-2 58-0 57-2 52-5 51-7 51-0 50-7 50-3 50-2 49-7 49-3 48:8 48-5 48-2 47-8 46:8 46-9 47-7 48.7 49-5 50-2 51-5 53-5 BIFIvar. DECLINATION, Magnet untouched, April 14 Observed 2™ after the Declination, ¢—0:000135. BALANCE. 4, 1846—May 1847. Observed 3™ after the Declination, k=0°000010. + Extra Observations made. bd Gottingen ' Mean Time of Declina- tion Obs. 5 SCH SHISHA WHO — csocoscoseeoscscooH cooococoevoce oeoooocsoooecsoo BIFILAR. BALANCE. % | Gottingen DECLINA- 2.2] Mean Time TION. Cor- |Thermo-|| Cor- |Thermo-|| &°E | of Declina- rected. | meter. || rected. | meter. ||S'~] tion Obs. 2 & Se. Div. be Mie. Div. 2 ee dis dae 24 58-42 |) 545-8} 51-4 332-1) 50-7 H]13 2 0 25 00-75 || 544-5] 51-1 353-3 | 50-7 H 4 0 05-08 || 541-9} 51-1 358-4| 51-0 | W 6 0 05-89 | 542-5] 51-2 353-7| 51-7 || H ee 10-18 || 541-3} 51-8 352-4 | 52-3 WwW 8 0 11-79 || 551-1] 52-4 350-3 | 53-2 B 10 O 11-10] 555-5} 53- 352-1) 54-1 WwW 09-35 || 566-2] 54-7 364-8 | 55-7 H 18 0} 07-64 || 566-3} 56-1 393-4] 57-0 WwW 20 0 07-60 || 563-3 | 56-7 414-5 | 57-5 WwW 22 0 07-57 || 560-2} 57-0 404-1 | 57-7 WwW 23 0 25 01-05 |) 556-5} 56-8 391-0} 57-0 Wiil4 0 0 1B) 24 58-69 || 541-9} 52-7 344-8 | 51-7 H 2 0 25 00-40 || 537-6| 52-1 362-3 | 50-7 H 4 0 04-71 || 533-1] 51-7 369-1) 51-3 WwW 6 0 07-74 |) 532-7} 51-8 370-0| 52-2 H ilar 0) 08-48 || 543-9} 52-3 353-0] 52-8 WwW 8 0 13-19 || 530-2} 52-9 359-5 | 53-8 H 10 0 13-76 || 564-4} 53-8 367-4| 54-9 Ww 13-20 || 557-8} 55-7 410-9| 56-7 H 1g 0 07-54 || 562-6] 57-0 457-5 | 57-9 WwW 20 0 06-97 || 565-8 | 57-3 415-8} 58-0 WwW 22 0 25 06-39 || 564-1] 57-4 413-9} 58-1 WwW 23 «0 24 57-56|| 541-1] 57-3 372-6| 58-0 Wi] 15 0 6 1 0 25 01-70 || 543-5] 53-2 378-3 | 52.2 H 2° 10 02-01 || 539-2) 52-7 377-8 | 51-9 H 4 0 05-40 || 530-8} 52-6 364-5 | 52-3 WwW 6 0 07-81 || 530-3 | 52-7 359-2] 52-7 H 7 #O 12-11 || 536-0} 53-0 360-5 | 53-2 W 8 0 13-56 || 536-4] 53-4 361-5} 53-9 H 10% 40 13-44 || 551-8] 54-0 357-5 | 54-7 WwW 10-83 || 555-4) 55-4 357-8 | 56-0 H 18 0 07-58 || 566-4) 56-6 368-3 | 57-1 Ww 20 0 04-49 || 567-0} 57-0 388-3 | 57-3 WwW 22 0 06-73 || 570-0) 57-2 382-1 | 57-4 WwW 23 0 25 03-55 || 557-8} 56-8 375-4| 56-7 Wwiil6é 0 0 1 0 24 51-10]| 529-2) 52-8 235-7 | 52-0 H 2 0 24 58-63 || 508-2} 52-7 286-7 | 51-7 H 4 0 25 11-99) 517-7} 52.4 282-5} 52-3 | W 6 0 10-43 || 492-4) 52-6 315-8} 52.9 WwW 7 0 19-61 || 509-1} 53-0 324-1} 53-8 W 8 0 16-41 || 522-8} 53-8 335-3 | 54-8 H 10 0 15-45 || 534-5] 54-8 339-9} 55-8 | W 10-06 || 555-4] 56-6 486-5 | 57-6 Wi] 1718'7 06-61 || 643-9] 57-6 483-3] 58-4 | W 20 0 25 17-61|| 572-8) 57-8 412-9} 58-5 WwW 22 0 24 56-18|| 577-8) 57-8 375-6 | 58-6 WwW 23 0 24 58-16 || 520-8) 57-6 219-6} 58-1 Wiis 0 0 LPO 25 02-39) 531-3] 55-0 319-8] 54-7 H 2 0 03-82 |) 535-2) 54-4 347-4] 54.2 H 4 0 06-06 || 522-3] 54.3 342-0} 54-5 Ww 6 0 10-87 | 515-2} 54-5 353-2) 55-0 WwW 7 0 12-13 || 530-4] 54.8 354-6 | 55-5 WwW 8 0 16-06 | 534-11 55-4 352-41 56-3 H 10 O DAILY OBSERVATIONS OF MAGNETOMETERS, May 7—18, 1846. DECLINA- TION. 25 01:34 25 03-45 25 04-79 24 59-73 25 00-04 BIFILAR. BALANCE. Cor- |Thermo.|| Cor- \Thermo- rected. | meter, || rected. | meter. Se. Diy. a) Mic. Diy. 2. 541-8| 56-3 | 368.0) 57-3 598-5| 57-8 || 404.6| 58.7 576-4| 58-9 | 395-2| 59.5 555-7| 59-1 || 375-3! 59-6 560-6| 59-1 || 389.7! 59-5 543.2| 58-4 || 353-8) 58.3 | 546-5| 54-4 || 310-1) 53-5 530-9| 53-7 | 360-6, 53.0 524.5| 53-5 || 364-4| 53-2 | 521-3] 53-6 || 362-5) 53-5 | 531-6| 53-8 || 362-7) 54-0 546-4| 54-2 || 363-9| 54.7 556-9| 54-7 || 376-9] 55-3 555-6| 55-9 || 405-8] 56-4 569-1| 57-1 || 389-1| 57-4 559-2| 57-6 || 381-0) 57-8 576-1| 57-9 | 371-5| 58-0 551-4| 57-7 | 348-2! 57-4 543-3| 53-5 || 309-3] 52-5 535-9| 52-8 | 340-1| 52-0 519-8 | 52-5 || 348-9| 52-0 522-5| 52-5 || 347-0] 52-2 526-0| 52-7. || 345-7| 53-0 531-6| 53-2 || 346-3] 54.0 540-8| 53-9 | 356-6] 54-8 564.3| 55-6 || 372-5) 56-5 568-1| 57-3 | 374-2] 58-1 562-9| 57-7 | 369-3| 58-3 559-3| 57-8 || 366-8] 58-3 552-4| 57.2 || 360-8] 57-3 546-4| 52-8 || 372-2] 51-7 535-1| 52.2 || 386-6] 51-2 527-9] 51-9 || 379-6] 51-5 525-6| 52.0 || 373-9} 52-0 528-7| 52-3 || 362-8] 52-7 532-8] 52.8 || 356-7] 53-5 541-1] 53-4 | 353-6] 54.4 548-6| 55-2 | 356-0} 56-2 565-1] 56-5 || 359-1| 57-2 563-8| 56-7 | 362-9) 57-3 567-6| 56-8 || 365-8) 57-3 557-7| 56-4 || 369-0| 56.4 550-5| 50-3 || 366-3} 49-8 546-3| 50-2 | 371-1] 49-8 537-2| 50-4 || 361-2) 50-5 536-5| 50-7 | 360-0/ 51-0 541-2| 51-0 || 344.3) 51-5 546.6| 51-4 || 339-3] 52-0 552-3| 51-7 || 336-4| 52.2 562-5] 51-9 || 346.2| 52-2 574-0] 52-0 || 363-8] 52-3 572-8| 52-0 | 380-1] 52-3 570-4] 51-9 || 375-5| 52-3 565-8! 51-8 || 365-5! 52-0 301 Observer’s Initial. SSSSH Sh Shahn segehehenhagnm gegqteneherm gaeseqeranenn 4aaanq | DECLINATION. Magnet untouched, April 144 1846—May 1847. Observed 2™ after the Declination, k=0-000135. BALANCE. Observed 3” after the Declination, s=0:000010. MAG. AND MET. oss. 1846. t+ Extra Observations made. 302 Gottingen Mean Time | of Declina- tion Obs. oo ceeocccccoooecoe ocooooco scooceocecece oS: cooocoeococeco 0 0 | ) 0 0 0 0 0 0 0 DAILY OBSERVATIONS OF MAGNETOMETERS, May 18—28, 1846. DECLINA- | TION. 25 12-67 02-05 04-88 07-00 09-29 10-83 14-99 10-97 07-15 05-58 03-74 07-92 | 08-41 59-43 02-48 08-52 10-56 09-49 10-77 06-51 02-97 04-44 05-36 05-94 04-22 BIFILAR. | BALANCE. Cor- |Thermo- | rected. | meter. Se. Diy. S 546-1) 51-0 573-0 540-1 535-0 535-6 534-8 557-7 557-7 584-3 579-6 566-1 558-6 529-2 546-9 524-1 531-8 529-5 549-3 547-8 559-4 578-4 574-8 587-2 557-7 547-8 543-7 530-1 524-1 516-4 538-5 559-8 566-2 570-6 570-4 569-9 559-0 | 544-6 527-0 513-9 517-7 534-9 | 534-6 | 556-6 | 533-1 552-2 553-2 563-4 551-9 | 546-6 527-6 523-2 533-5 540-6 | 543-9 oor or or on or HN ATH Nee ww oO BIFILAR. DECLINATION, | 425-4 Cor- |Thermo-| rected. | meter. | Mie. Div. 296-2 317-9 351-7 357-8 358-8 359-9 349-7 359-9 374-9 410-1 387-0 334-7 332-3 44SeRe5 Observer’s Initial. 4ghim gagdmdmegdmn ggggmgmga gun a <= Haentaenhm sesshetseterq Gottingen Mean Time of Declina- tion Obs. + ooooocos = SOND NWRK SO wNonwnnwe mown oo ecoeoocowscoococo CONDADO coooocooococoooecs DECLINA- TION. 25 17-94 15-14 07-10 08-77 07-49 05-94 05-11 01-12 02-69 06-64 11-72 12-63 09-42 10-95 09-06 06-86 06-48 03-57 02-79 59-12 06-54 09:05 11-84 14-33 14-91 10-95 08-31 07-10 05-80 06:48 01-18 00-98 01-58 06-29 09-62 12-31 ecocococsoocs 13-52 11-44 05-79 05-09 05-70 06-12 02-79 59-36 03-54 04-68 09-05 11-17 12.72 11-41 07-45 06-50 05-52 BIFILaR. BALANCE, Cor- rected. Se. Div. 555-5 583-8 562-0 554-9 557-4 558-0 543-8 535-1 534-3 530-4 537-3 529-2 565-3 558-3 573-1 552-7 564-9 555-3 543-6 06-26 || 5 Thermo- meter. 55-6 56-8 58-3 59-0 59-5 59-7 57-7 57:5 57-8 58-2 58-7 59-2 59-7 60-7 62-0 62:5 63-0 Cor- rected, Mic. Diy. 362-4 396-4 413-2 413-9 390-9 372.8 340-5 354-3 360-3 362-4 363-1 373-7 398-4 443-2 397-0 410-1 401-7 379-7 376-8 376-9 354-5 332-1 328-8 331-6 344-6 375-7 373-2 367-0 366-5 355-6 364-1 368-0 360-5 359-7 347-5 358-9 361-7 384-8 389-7 387-2 377-2 373-9 381-9 386-5 376-8 322-7 368-8 365-2 361-8 380-7 384-1 378-7 376-7 363-8 Thermo- meter. 56-0 57-5 59-0 59-7 60-1 60-0 57-3 57:5 58-3 58-7 59-3 59-8 60-3 61-5 62-7 63-2 63-5 63-3 57-0 56-5 56-5 57-0 57-2 57-5 58-2 59-2 60-4 60:7 60-8 60-0 53-4 55-0 54-8 55-2 55:3 55:5 53:8 56-2 56-7 56-7 56-7 56-3 52-3 52-3 52-5 53-0 53-7 54-5 55-2 57-0 58-5 59-0 59-3 59-5 Observer's — Observed 2™ after the Declination, k=0-000135. BALANCE. Magnet untouched, April 14°, 1846—May 1847. Observed 3™ after the Declination, k=0-000010. + Extra Observations made. mame ddegrdmgmgmn gedanis Si tm DaILy OBSERVATIONS OF MAGNETOMETERS, May 28—Junz 8, 1846. iw) S Go Initial. HRMS Rees MMS ers Ss Mrs pl it itt Gottingen BIFILAR. BALANCE. % =| Gottingen BIFILAR. BALANCE. | $ Mean Time |} DEcLINA- >=] Mean Time || Decrina- |e of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|) 2° | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| % | tion Obs. rected. | meter. || rected. | meter. 5 = tion Obs. rected. | meter. || rected. | meter. S 3 m. oi U Se. Diy. eo Mic. Div. = ay jh.) an. 2 i Se. Div. ” | Mie. Diy. e | 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. || 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 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 4 06-70 || 535-0| 56-0 |) 372-5| 56-5 WwW 7 0 02-08 | 563-1) 76-4 | 393-3 | 77-3 0 08-32 | 539-5 | 56-6 367-3 | 57-5 WwW 8 0 06-63 || 558-5] 77-0 | 414-3) 77-5 0 13-67 || 542-8 | 57-4 363-1] 58-7 H 10 O 07-24 || 549-8} 77-0 410-4) 77-5 0 14-60 || 539-3 | 58-7 362-0 | 60-2 H | 0 11-74 || 560-0} 61-2 345-2| 62-6 H 18 0 || 25 03-77) 536-4) 72.3 408-7 | 71-0 | 0 08-29 || 566-8 | 63-0 363-8 | 64-2 WwW 20 0 01-18 || 529-5| 71-3 428-4) 70.2 || 0 07-34 || 566-1 | 63-6 || 367-7) 64-6 Ww 22 0 01-98 || 527-0) 70-7 415:3| 70-0 | 0 06-36 || 567-3 | 64-0 368-4 | 65-0 W 23 0 04-29 || 529-5| 70-7 || 407-3| 70-5 | 0 || 25 06-48 || 560-6] 64-3 358-2 | 65-2 WwW £10030 06-98 || 530-3| 70-8 393-1) 71-2 | 10) 11-14) 540-8} 71-5 394-4| 72-5 || 0 || 24 57-37 || 551-8] 59-9 || 329-5] 59-3 H 2 0 12-01 || 549-9) 72-5 399-3| 73-5 || 0 | 25 00-84) 548-6] 59-7 || 356-3) 59-2 H 4 0 12-02 || 560-9| 74-7 || 417-6] 75-8 || 0 04-71 || 539-9 | 59-7 354-0 | 59-8 WwW 6 0 12-23 || 562-6| 76-8 || 432-2) 77-7 || 0 10-13 || 539-7 | 59-8 || 347-5! 60-3 H 780) 07:00 | 569-4) 77-6 || 424-9] 78.4 || 0 13-96 || 546-3} 60-3 341-2| 60-8 WwW 8 0 06-73 || 557-7| 78-2 || 417-0} 78-7. || 0 16-92 || 557-4} 60-7 341-3 | 61-0 H 10 0 07-17 || 544-3] 78-2 |) 409-8} 78-3 0 15-86 || 554-5} 61-1 349-3 | 62-0 Ww | 0 12-55 || 559-7 | 62-7 || 367-2| 63-5 WwW 18 0 || 25 00-30] 531-1| 72-2 430-3| 70-4 0 10-56 || 583-7 | 64-2 || 385-7] 65-0 WwW 20 0 03-88 || 534-2} 71-0 || 401-8) 69-3 0 00-35 || 571-8| 64:9 || 425-0) 65-6 WwW 22 0 05-08 || 538-2] 70-3 381-6] 69-3 - || 0 04-93 || 565-6 | 65-4 || 404-0] 66-0 || W 23 0 08-65 || 537-7| 70-3 380-3] 69-9 0 05-58 || 563-6 | 65-5 376-6 | 66-0 Ww 5 0 0 11-17 || 530-5) 70-5 378-1] 70-7 1.0 12-95 || 535-6) 71-7 380-7) 71-7 | 0 || 25 03-90 |) 530-2| 63-0 || 342-5) 61.9 WwW 2 0 12-58 || 547-5| 72-0 385-5 | 72-8 | 0 02-42 || 533-7 | 62.4 349-4] 61-3 Ww 4 0 12-70 || 552-0| 74-1 386-6 | 75-0 0 06-70 || 532-6] 61-8 347-5 | 61-3 H 6 0 09-51 || 564-1| 76-2 387-0] 77-2 || 0 07-58 || 533-6) 61-9 343-9 | 61-9 H 770) 07-07 || 556-2| 76-8 397-8| 77-7. | 0 10-81 || 538-3} 62-4 || 345-9) 62-8 H 8 0 05-69 || 558-4| 77-2 406-1| 77-8 0 11-27 || 546-3) 63-3 357-0| 64-2 H 10 0 || 25 06-90 || 552-4] 77-3 413-5] 77-5 || 0 12-62 || 539-7 | 64-4 359-6 | 65-7 H | 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 || 0 09-33 || 550-6 | 69-5 379-0 | 70-7 H 20 0 || 24 59-23 | 531-2) 71-8 406-7} 70-5 || 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 | 4 0 06-43 || 565-0 | 71-4 398-4 | 72-3 H 23 0 06-04 | 541-1] 71-2 || 404-4) 70-8 | 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 || | t 1 0 11-74 | 538-5| 71-8 391-4) 72-3 1 18 O | 25 02-37] 537-1| 67-4 220-5 | 66-5 H 2 0 11-64 || 544-0] 72-7 389-3] 73-5 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 0 07-22 |) 512-8} 66-3 345-7 | 66-0 Ww 6 0 10-67 || 568-5} 76-2 || 416-8} 76-8 0 10-60 || 523-9] 66-4 || 349-7| 66-7 H 7 0 08-06 || 567-2) 76-7 || 433-1] 77-2 0 14-40 || 538-3 | 67-0 350-9 | 67-8 Ww 8 0 08-11 | 570-8| 77-0 || 426-7| 77.3 0 13-54 || 544-3 | 67-8 359-9 | 68-8 H 10 O 04-21 || 550-4] 76-8 413-8] 77-3 0 14-98 | 550-1} 69-0 || 371-2} 70-1 WwW | | 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 || 0 08-61 || 563-0 | 72-8 371-6 | 73-9 WwW 20 0 00-40 || 534-4) 66-0 411-8} 64-8 | 0 06-98 || 565-6 | 73-3 387-5 | 74-5 WwW 22 0 02-62 || 531-0] 65-5 || 411-9} 64-7 ot 01-09 || 549-4| 73-9 || 440-5| 74-8 Ww 23 0 04:14 || 533-0) 65.3 406-6} 64-5 | 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 | 1 0] 09-74]) 545-2) 65-0 || 398-9] 64.7 | 0 || 25 01-65 || 534-4] 69-4 || 334.4) 68-2 WwW 2 0 18-21 || 544-9) 65-0 || 400-5| 65-0 | 0 00-92 || 517-4| 68-7 || 389-7 | 67-5 WwW 4 0 12-22) 547-3] 65-4 || 411-7] 65-4 | “a 06-76 || 533-7 | 68-0 390-4 | 67-5 H 6 0 | 08-08 || 552-1} 65.8 414-0! 65-7 | 0 10-47 || 533-3 | 68-1 382-8 | 68-2 H 7 0] 06-63 || 554-7| 66-0 414-9 66-0 | 0 12-18 || 535-5| 68-5 369-2 | 69-0 H 8 0) 05-42 || 558-7| 65-9 | 412-6. 66-0 0 13-09 || 543-4! 69-4 I 371-7! 70-3 H 10 O 05-55 || 556-8! 65-7 || 416-1 65-5 I DECLINATION. Magnet untouched, April 144, 1846—May 1847. 1a cram: Observed 2™ after the Declination, k=0:000135. + Extra Observations made. BALANCE. Observed 3™ after the Declination, k=0:000010. 304 DAILY OBSERVATIONS OF MAGNETOMETERS, JUNE 8—18, 1846. Gottingen BIFILaR. BALANCE. re Gottingen * Brrrmar. BALANCE. hes Mean Time || DECLINA- | | 2-2] Mean Time || Drciina- 28 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 = tion Obs. rected, | meter. || rected. | meter. 5 = da ob m orks Se. Div. 2 Mie. Div. 2 de hs “x: ° ’ Se. Diy. ° Mic. Div. ° 8 18 0 || 25 00-20}} 531-1) 63-4 312-2| 62:8 || W413 2 0 | 25 20-90} 531-9| 66-0 386-8 | 67-0 H 20 0 || 24 58-67 || 530-7) 63-0 347-7| 62-6 || W 4 0 13-86 | 566-4! 68:3 394-3 | 69-4 B 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 H 23. 0 04-41 || 534-0} 63-4 393-1| 63-7 || W 740 07-37 || 570-6 | 70-5 401-8} 71-5 H 9 0 0 06-46 || 537-6| 63-8 || 400-7| 64-5 || H 8 0] 06-21 || 565-8| 70-8 || 414-2] 71-6 || H Le 2 11-01 || 545-1 | 64-5 415-4| 65-3 || H 10 0 || 25 06-23 || 566-6| 70-8 400-2) 71-5 H 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] 1418 0 || 24 57-91] 547-3} 69-6 334-5 | 68-3 WwW 6 Ot] 24 59-66 || 604-0| 67-8 | 507-1] 68-7 H 20 0 || 24 58-77] 540-0) 68-5 || 406-8] 67-3 || W 7 0 || 25 07-10]| 571-7] 68-3 496-8 | 69-2 || H 22 0 || 25 08-45) 521-0} 67-8 412-0} 67-2 H H 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 17 10 0 05-32 || 547-2} 68-9 4123] 69-3 | H}15 0 O 03-84 || 527-8) 68-0 412-3] 68-0 H | 1 0 10-70 || 532-7) 68-3 || 417-3] 69-0 || H 18 0 || 25 01-49 || 538-8} 65-8 351-9| 65-5 WwW 2e/0 12-53 || 546-0} 69-0 409-3 | 69-7 H 20 0 || 24 58.87)) 525-3) 65.4 407-9| 65-0 WwW 4 0 11-75 || 559-0| 70-7 || 414-4) 71-6 Wt 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 H 23 0 |) 05-22 || 520-0} 65-3 420-9) 65-6 WwW 7 O |) 25 04-98 |) 587-5 | 73-3 468-8 | 74-0 H 10 0 0 08-90 || 523-0} 65-6 411-9} 65-9 H 8 O || 24 58-45 |) 573.2) 73-7 466-2| 74-3 Wi TO 11-07 || 543-1} 66-0 402-6 | 66-5 H 10 ot 24 53-65 || 569-5 | 73-8 412-4) 74-0 H 2510 12-62 || 553-8| 66-4 405-0 | 67-2 H 4 0 10-43 || 575-4| 67-6 440-6 | 68-2 W 18 0 || 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 0 07-40 || 526-1} 68-3 393-7 | 67-2 Wii Chaat! 09-53 || 563-0] 68-0 || 441-5] 68-5 H 22:00 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 0 07-47 || 553-7| 67-3 412-6| 67-3 H|16 0 0 08:85 || 515-9| 68-0 410.0) 68-5 H | ¥ 0 07-87 || 526-9} 68-8 418-1| 69-7 H 18 0 || 25 01-72) 538-9] 63-7 414-2} 62-8 WwW 28:0 08-55 || 540-8| 70-0 425.2) 71-2 H | 20 0 || 24 59-46 ]} 532-3] 63-2 430-8 | 62-4 WwW 4 0 12.63 || 572-0) 72-4 461-5 | 73-7 Wi 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 H} 23 0 03-72 || 519-2} 62-8 416-9| 62-7 W 70 09-02 || 572-5 | 74-8 407-0} 75-5 H ! i (OO 08-12 || 526-9} 62-9 410-9} 63-0 B 8 0 07-45 || 561-8 | 75-3 416-2) 75-8 H | 0 10-70 || 535-8} 63-2 407-0 | 63-5 B 10 0 07-54 || 552-3| 75-6 405-6 | 76-2 Hf 219) 12-72 |) 544-7} 63-7 || 403-7] 64-4 || H | 4 0 11-84 || 553-3] 65-0 403-0} 65-8 WwW 18 0 || 25 06-21 || 545.9} 70-5 404-6} 69-5 Ww i) 08-86 || 558-3 | 66-1 410-9 | 66-6 H 20 0 01-95 || 537-8| 69-8 413-8| 68-8 WwW Cea) 07-07 || 561-0] 66-1 410-2} 66-7 H 22.0 01-24 || 518-1] 68-7 410-5 | 68-7 H 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 0 05-85 || 555-1| 65-7 405-4} 66-0 H {17 0 0 11-84 || 542-6 | 69-7 380-4| 70.2 Hg iN) XO) 13-90 | 538-2| 70-5 394-2) 71-5 H 18 0 || 25 00-53 || 546-1) 62-6 414-1} 61-9 WwW 250 12-90 || 551-9| 71-6 386-6 | 72-8 Hg 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 net 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 HG 23 O || 25 03-41) 529-1) 62-3 402-7} 62-8 Ww 740 06-50 || 563-6| 77-5 414-6| 78-3 H | 12 0-0 08-77 || 531-7 | 62-8 392-7 | 63-5 H 8 0 07-34 || 569-5) 78-2 418-2| 78-8 Hi (TG) 12-72 || 532-3] 63-6 390-8] 64-2 B 10 OO} 06-50 || 562-8| 78-6 419-1} 79-1 H 2 10 12-11) 545-0} 64-2 384-9 | 65-2 H q 4 0 13-12] 563-5| 65-9 398-0} 66-9 WwW 18 0 || 25 02-19] 546-0) 73-7 433-3 | 72-8 WI 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 wi (a) 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 23-0 05-32 || 532-8] 72-4 425-0| 72-4 WwW 10 O 06:51 || 557-6 | 67-5 402-2} 68-0 Heise 00) 04-75 || 543-6 | 72-7 414-4| 73-3 H 1 ea 11-84 || 535-4] 73-5 411-4] 74:3 HY 18 0 || 25 00-03 || 549-9) 64-1 415-1} 63-8 WwW 2101) 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 A eG 09-15 || 539-4) 76-2 416-9) 77-1 Ww 22 0 || 24 59-43 || 539-6) 63-8 390-4 | 63-8 WwW 6 0} 06-50 |) 559-1] 76.5 404-8 | 77-2 HY 23 0 || 25 11-44|| 544-9| 64-0 378:0| 64-2 | H | (6. ail 07-17 || 555-1 | 76-7 402-8 | 77-5 Ww | 13 0 0] 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 (ee 10-06 || 568-1! 65-7 370-9! 66-0 H 10 0 06-97! 551-8! 77-0 394-3! 77-2 H | DECLINATION. Magnet untouched, April 144, 1846—May 1847, Birizar. Observed 2™ after the Declination, =0:000135. BALANCE. Observed 3™ after the Declination, k=0:000010. + Extra Observations made. - Gottingen Mean Time of Declina- tion Obs. + ocooccococooceo cooococoe DECLINA- TION. 25 02-87 25 02-28 25 03-99 24 58-45 25 02-20 25 08-31 24 59-74 25 00-72 DatLy OBSERVATIONS OF MAGNETOMETERS, JUNE 18—29, 1846, 305 Birman. BALANCE. q =| Gottingen BIFILAR. BALANCE. % cs >=] Mean Time |} Drcuina- Paes Cor- |Thermo-|| Cor- |Thermo-|| 2g | of Declina- TION. Cor- |Thermo-| Cor- /Thermo-| 3 °g rected. | meter. || rected. | meter. 5 Z tion Obs. rected. | meter. || rected. | meter. 5 = Se. Diy. Ss Mice. Div. 2 diy ee. om, bi ¢ Se. Div. ° ||Mic. Div. 533-0) 73-2 386-1) 72-3 W ] 24 2 O || 25 10-77]! 553-4] 58-0 || 382-5| 58.2 Ww 544-3 | 72-5 351-9| 71-7 | W 4 0 10-03 || 565-9} 59-0 | 410-5) 59-5 | H 533-0} 72-1 395-2) 71-7 | H 6 0 | 03-09 || 565-1| 60-0 || 425-0| 60-6 WwW 541-6| 72-1 394-4| 72-2 | W 7 Of] 06-70 || 566-3) 60-5 417-9} 61-0 WwW 540-7 | 72-6 399-7 | 73-2 H 8 0 07-69 | 571-7| 60-9 404-5} 61-5 W 547:8| 73-2 394-1) 74:0 | H 10 0 | 06-24 |) 557-1} 61-1 391-8] 61-4 WwW 550-2| 74-3 393-7 | 75-2 H | | 548-4| 76-2 403-1| 77-0 WwW 18 0 | 25 00-99 || 547-0) 57-2 | 395-3) 56-5 | W 559-8 | 77-3 390-1| 77-8 | H 20 0 01-41 | 543.0) 56-8 396-0| 56:3 || W 558-6| 77-6 || 391-6] 78-0 | W 22.0 03-81 | 528-6| 56-7 | 377-0| 56-7 | H 557-2| 77-6 393-2] 78-0 || W 23 0 05-25 || 536-8| 57-0 || 376-6) 57-7 | W 550-4} 77-4 397-0| 77-3 || W725 0 0 07-54|| 548-2) 57-8 379-5 | 58-8 WwW | Ly) 11-21 || 551-1) 58-7 380-1} 59-5 | B 539-6| 71-2 416:0| 69-3 WwW 23 12-35 || 560-2| 59.3 383-0 | 60-3 WwW 532-4| 69-6 403-3 | 67-5 WwW 4 0 10-20 || 552-8| 60-1 397-0| 61-0 H 530-0| 68-3 390-0 | 66-4 H 6 0 07-76 || 568-0} 60-6 399-8| 61-7 H 529-4) 67-9 389-2} 66-3 W 7 0 05-06 | 580-6| 60-7 397-4] 61-5 H 526-5 | 67-7 384-8 | 66:3 H 8 0 07-52 || 562-2) 60-7 395-9 | 61-2 H 541-2) 67-4 381-8} 66:3 H 10 0 06-26 || 556-8| 60-4 391-2| 60-5 H 546-4| 67-4 379-6 | 66-6 H 553-7 | 67-6 379-0) 67-1 W 18 0 | 25 01-31 ]| 545-7| 56-0 367-7| 55-0 || W 551-1| 67-7 390-5| 67.2 H 20 O || 25 00-22) 542-2] 55-2 379-5 | 54-7 WwW 553-1| 67-7 390-1) 67-0 H 22 0 || 24 59-14) 536-6| 55-0 379-7| 55-2 H 555-4) 67-6 387-6 | 66-9 H 23 0 || 25 02-46] 533-6) 55-5 375-5] 56-0 WwW 550-6} 67-3 393-1| 66-7 H }|26 0 0 07-17 || 533-2| 56-0 362-7 | 56-8 Ea 1 0 10-00 | 541-3) 56-9 354-4| 57-8 H 548-8 | 65-7 392-0| 65:3 WwW 2 0 12-45 || 548-4 | 57-7 357-6| 58-5 H 535-2) 65-4 399-5) 65-0 Ww 4.0 11-99 | 554-8| 58-3 364-6 | 59-2 H 536-3| 65-4 381-5| 65-5 H Gy 8 09-42 || 561-4) 58-7 370-4 | 59-5 H 539-8 | 65-7 378-3| 66-1 WwW (fe) 08-36 || 569-7| 58-8 366-6 | 59-5 H 546-6| 66-3 366-0) 67-0 H 8 0 07-05 |, 568-9} 58-8 376-5 | 59-5 H 544-7 | 67-2 364-4| 68-0 H 10 O || 25 06-43 || 564-5] 59-2 376-6 | 59-2 H 555-3| 68-0 372-8| 69-2 H } 562-9) 70-0 388-9) 71-3 W 18 0 || 24 57-05) 538-7) 57-2 368-5 | 57-2 WwW 559-2| 71-8 410-2| 73-0 H 20 O || 24 59-88 552-4) 57-6 365-0 | 57-8 WwW 566-7 | 72-4 404-1| 73-4 WwW 22 0 || 25 01-46)| 537-3) 58-0 372-9 | 58-7 H 566-2) 72-6 || 401-1) 73-5 H 23 0 04-17 || 534-4) 58-6 373-7 | 59-3 Ww 559-1| 72-5 410-8| 73-0 B}27 0 0 07-10}; 535-4| 59-1 375-5 | 60-0 H L, 0 03-68 |) 541-0} 59-7 371-8 | 61-2 H 542-9) 70-0 375-0| 69-7 W 25.10 10-83 || 543-9) 60-3 355-9| 61-5 H 535-2} 69-3 394-1 | 69-0 WwW 4 0 11-64 || 556-7} 62-0 364-3 | 63-0 W 532-6| 68-9 384-7 | 68-7 W 6 0 07-79 || 573-4) 63-0 388-6 | 64-0 H 538-1| 68-7 385-6] 68-5 || W rf eXe) 06-64 || 567-8} 63-3 411:4| 64.2 H 551-2| 68-7 379-0) 68-5 H 8 0 07-71 || 580-3} 63-5 413-8 | 64-3 H 547-7| 68-6 386-8| 68-6 | H 10 0 04-17 || 556-9} 63-4 || 414-5) 64.0 H 564-9 | 68-6 384-4| 68-7 || H 555-4] 68-7 || 426-0} 68-8 | W | 28 18 0 | 25 03-94|| 539.2} 61-4 344-3 | 61-0 H 564-5 | 68-1 432-8| 67-7 H 20 O || 24 58-58 || 545-1) 61-4 378-2| 61-5 H 566-7 | 67-7 434-7| 66-9 || H 22 0 || 25 03-02|| 524-4) 61-7 391-4} 61-8 WwW 564-3| 67-0 || 427-8| 66-0 | H 23 0 03-23 | 531-5| 61-8 387-0| 62-2 H 554-5| 66-5 417-3| 64-2 | H | 29 0 O 06-03 || 537-1} 62-3 376-4| 62-8 Ww 1 OO; 09-08 || 533-5] 62-6 374-1 | 63-2 H 540-5 | 59-6 382-5 | 57-7 WwW 2 0 12-23 || 554-3) 63-0 378-2 | 63-8 WwW 539-5| 58-3 377-6| 56-6 WwW 4 0 10-09 || 560-9} 64.2 384-1| 64-9 H 536-4| 57-5 379-9) 56-2 H 6 0 09-69 || 574-4) 64-9 384-6 | 65-4 Ww 535-0| 57-3 374-9| 56-5 WwW 7 0 07-94|| 578-7| 65-0 394-2) 65-4 Ww 545-6 | 57-3 372-0) 56-7 H 8 0 07-76 || 576-5] 64-9 409-5 | 65-1 WwW 550-8! 57-4 375-4) 57-5 HE. 10 0 01-041 556-6! 64-4 397-3' 64:3 WwW _ Brrmar, MAG. AND Mer. ozs. 1846, _ DECLINATION. Magnet untouched, April 144, 1846—May 1847. Observed 2™ after the Declination, s=0-000135, BALANCE. + Extra Observations made. Observed 3™ after the Declination, s=0:000010. ~ 306 DAILY OBSERVATIONS OF MAGNETOMETERS, JUNE 29—JuLy 9, 1846. Géttingen BIFILAR, BALANCE. ae Gottingen Birivar. BALANCE, ¢ aa | Mean Time || Drcurna- >. | Meon Time || Decurna- |__| —___| Bis of Declina- TION. Cor- /Thermo-|| Cor- |Thermo- 25 of Declina- TION, Cor- |Thermo-| Cor- /Thermo- 2 5 tion Obs. | rected. | meter. || rected. | meter. || O tion Obs. rected. | meter. || rected. | meter. ||5 da. h. m. | 5 # | Se. Diy. 4 | Mie. Div. , d. oh. m. by (i Se. Div. ¢ || Mie. Div. A 29 18 0 | 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 W 20 0 | 25 01-72) 543-5] 61-2 || 369-4] 60-8 || H 4 0] 09-32 || 566-2} 65-4 | 405-5) 66-9 || H 22 0 02-33 || 527-9] 61-1 || 383-4| 61-0 || W 6 0 06-83 || 564-9} 66-8 | 362-4| 68-5 || W PRE Sal!) 08-01 | 525-0| 61-2 | 373-8} 61-2 H Tao 08-08 || 564-1 | 67-4 | 364-6) 69-1 || W- 30 0 0; 10-58 || 534-2} 61-2 | 369-1] 61-4 || W 8 0] 07-78 || 567-5| 68-2 || 369-6| 69-8 || W 140 12-36] 547-1| 61-5 | 371-4| 62-0 || H 10 0 06-68 || 560-6| 68-8 || 369-3) 69-7) W 2 0| 14-94 || 552-2] 61-9 | 375-1] 62:3 || W | | 4 0 12-26 || 561-9| 62-5 || 375-3] 62:8 || W 5 18 0 || 25 00-82]| 540-0] 66-4 || 325-7) 65-2 || H 6 0 09-62 | 560-6 | 62-4 || 406-1] 62-6 | W 20 0 00-91 || 538-4| 65-7 || 379-2) 64-2 || H 7 0 08-23 || 569-5) 62-2 || 411-8] 62-5 || W 22 0 04-51 || 530-6] 64-9 || 379-1] 63-5 || W 8 0] 05-79 || 573-8] 62-1 416-8] 62:3 || W ry, (0) 00-96 || 525-0] 64:5 || 356-8] 63-2 || H 10 0 | 07-57 || 559-2] 61-6 |) 400-6] 61-5 || W 6 0 Ot 19-68 || 497-2) 64-1 397-6 | 62:9 || W> | 1 0 12.22]| 554-7| 63-8 | 371-5| 62-7 || He 18 0 || 25 07-44|) 559-5) 58-8 || 357-8] 58-2 H 2 0 16-59 || 560-1] 63-6 | 385-6| 62-6 | W 20 0 || 24 58-32]! 537-3] 58-7 || 387-0| 58-2 || H 4 0 08-01 || 553-8 | 63-2 | 397-6| 62-7 H 22 0 || 25 01-65 || 530-3) 58-6 || 373-7] 58-6 || W 6 0 08-34 || 564-1] 62-9 | 472-0} 62-2 || W 2300 07-15 || 534-5 | 58-8 || 377-3) 59-2 H Tao 02-15 || 566-6| 62-7 || 465-8} 61-9 || W E00 09-77 || 537-0} 59-2 || 370-8| 59-6 || W 8 0 05-35 || 568-9| 62-4 || 442.3) 61-6 || W 19x6 11-69 || 542-4| 59-7 || 350-7) 60-5 H 10 Of) 25 01-29|| 558-2) 61-8 || 404-8] 60-4 | W 2 0 TOT | 54501) GOO leeeacesn lesen WwW 4 0 10-23 || 566-6 | 60-5 |} «erees | eeeeee H 18 0 || 24 59-81 | 533-6] 58-4 || 342-3) 56-7 || H (3) 08-50 || 578-3] 61-0 |] --+-- | seeeee WwW 20 0 || 25 01-05 || 539-2] 57-8 || 361-5) 56-7 || HY Tats 07-31 || 558-6 | 61-1 || ceeeee | oeeeee W 22 0 03-79 || 536-7 | 57-7 || 383-5) 57-3 || W 8 0 08-11] 559-6 | 61-3 |] --se00 | seeeee WwW 23 0 07-07 || 529-7| 57-7 || 386-8} 57-7 || H | 10 0 06:44 | 558-2| 61-4 |) veeeee | ceeeee Ww Te OTRO 11-05 | 536-3] 57-9 || 378-4] 58-3 || W nO 12-89 | 544-8] 58-2 || 374-2) 59-0 | H 18 O | 24 54.21 | 546-7} GO-8 || seeeee | ceneee H 2 0 15-25 || 559-4| 58-7 || 383-5) 59-7 20 O || 24 52.23 || 534-7) 60-8 || «-.+0+ | ceseee H 45-0) | 07-38 || 569-0| 59-8 || 429.4) 61-5 || H 22 0 || 25 07-98 || 524-5] 61-2 || «+--+. | -++-0 Ww 6 0 08-12 || 566-3 | 61-1 407-8 | 62-7 || W 23) OF || 11-12) 546-3) G16 || ---e0 | eeeeee H hi) 07-29 || 568-1} 61-5 || 393-6} 62:9 || W 2” OF 0; || 14-87 || 535-7) 62-0 || vereee | eeeeee Ww 8 0 | 06-34 || 570-6| 61-9 | 392-9) 63-2 || W 1 0] 17:42) 533-6)| 62:60 I] senses | och eos H 10 0 07-34 || 549-9! 62-0 || 388-3} 62-6 || W 2 0} 17-15 || 544-6} G3B-1 || eeosee | encses Ww | 4 0] 16-15 || 560-2] 64:7 || .-s-- | eeeeee H 18 0 | 25 08-73] 537-7] 59-4 || 286-6] 58-7 || H 6 0| 10-81 || 578-4} 66-0 || eeeeee | seeeee WwW 20 0 || 24 58-52) 536-6] 59-0 366-7 | 58-5 H Cs) 10:43) 576266625 ailipecnaees [oes ne WwW 22 0 || 25 02-15 || 527-6} 58-9 || 395-5] 58-9 || W 8 0 09-26 |] 570-3] 66-6 || -e--06 | eoeeee WwW 23% 10 07-04 || 532-1] 58-9 | 386-2} 59-0 || W 10 0) 08-70 | 559-2) 66-6 || «vee | eeeeee WwW ie Co) (0) 09-13 || 538-6] 59-0 | 370-9] 59-5 || W4 | | 1 0 12-06 || 531-8] 59-2 | 373-1] 59-7 || H 18 0 | 25 03-74)) 549-2} 64-4 || 312-5] 64.5 | H 2540) 11-28 || 545-8] 59-3 | 353-6] 59-7 || W 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 | H 22 0} 11-55 || 528-1] 64:0 | 364-9] 64-3 || W 6 0 06-66 | 566-2] 59-3 | 385-3) 59-5 || W 2a OM 11-44) 532-1 | 64-1 366-5 | 64-8 WwW Toe 06-59 | 562-6) 59-3 387-9| 59-3 || W 5: OF 0n 11-30 | 527-2} 64-3 || 366-2) 65-0 || W 8 0 02-28 | 560-6} 59-1 403-8 | 59-0 | W 1 0] 12-18) 539-1| 64-5 || 384-7] 65-3 | H 10 0 05-49 || 559-6| 58-8 || 394-2| 58-5 || W 2) 13-94|| 544-3 | 64-7 || 404.2| 65-4 | W 4 9| 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 || W 20 0 || 25 03-57] 532-8] 56-6 || 389-7| 56-0 || H ch OL 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 || W 23 0 || 25 04-73 || 523-9] 56-4 392-0} 56-2 H 10 0| 07-47 || 558-7) 65-0 || 416-0] 65-2 || W 9 0 0 08-29|| 526-1] 56-4 | 373-5| 56-3 || W> | Ip RON 11-48 || 535-9] 56-4 || 374-3| 56-4 H 18 0 | 25 02-26) 515-4! 63-2 || 207-8] 62-5 || H 25-08} 12-45 || 545-9] 56-4 || 378-0| 56.5 | WJ | 20 0 01-90} 536-8| 62-8 || 300-1] 62:5 || H 4 0] 12-35 || 559-3 | 56-6 || 390-8) 56-9 H | 22) 0 05-52 || 526-3) 62-8 || 356-2) 63-1 WwW 640 08-50 || 569-0) 56-9 || 402-6) 57-4 WT Zoe 0) 10-80 | 518-4| 63-0 || 364-3] 63-7 || H TASUA 06-64 || 561-4] 57-1 || 405-8| 57-7 || WH 470" 0 15-02 |) 543-1) 63-3 355-0| 64-1 W 8 0 06-50) 561-2} 57-3 394-9 | 57-8 WwW ee LO) 15-41 |! 537-9' 63-7 || 403-1! 64-5 TE igh be LENO) 02-:17'' 556-7 57-5 | 393-5) 58-0 || WH DECLINATION. Magnet untouched, April 14¢, 1846—May 1847. BIFILAn. Observed 2™ after the Declination, s—=0:000135, BALANCE. Observed 3™ after the Declination, s—=0:000010, fi | July 14—24. Observations of deflection of the balance needle were made for the purpose of determining the value (xk) of a micro- meter division, in parts of the whole vertical force. The observations after July 24 are reduced to be comparable with those before } that date. See Introduction, p. xliii. ‘qi + Extra Observations made. Géttingen Fifean Time ceoooocococso: ceoooccocooocoso 2 = te r 0 0 0 0 0 0 0 0 0 0 0 pO qeoococcoceco => ococoooo DAILy OBSERVATIONS OF MAGNETOMETERS, JULY 9—20, 1846. DECLINA- TION, 25 00-47 02-59 02-97 04-82 09-20 11:07 12.45 12.04 09-62 08-85 08-05 06-14 58-55 54-92 02-84 08-39 12-06 15-92 17-40 15-29 13-05 10-09 02-99 06-43 04-17 59-23 05-15 02-62 12-65 13-09 12:98 11-77 06-32 14-80 11-34 02-19 03-67 00-53 59-73 03-68 05-77 08-46 09-80 11-01 08-41 Observed 2™ after the Declination, s=0-:000135. BIFILAR. BALANCE. Gottingen Cor- rected. Thermo- meter. Cor- rected. Mean Time of Declina- tion Obs. Thermo- meter. Observer’s Initial. Se. Div. 546-5 537-8 531-5 527-0 531-5 537-3 544-0 560-9 577-1 574-1 568-9 559-7 547-7 537-3 539-4 543-9 554-4 541-2 508-1 577-7 579-8 570-5 570-7 558-9 542-8 544-0 538-0 536-7 526-2 536-7 541-6 565-4 596-5 592-9 570-4 542-5 541-0 532-8 522-2 518-1 5325 536-8 540-3 566-2 561-4 563-0 574-1 | 559-6 | 546-8 549-1 538-0 526-3 541-4 | 551-5 56-7 Mic. Div. 370-7 375-4 377-0 373-3 363-4 341-0 335-4 365-3 386-3 387-6 385-5 373-4 400-5 392-9 8 ceoocec: ° a. 56-6 15 57-2 58-4 59-2 60-5 61-9 63-2 64-9 66-5 66-9 67-2 66-3 60-0 59-7 60-3 60-9 61-5 62-2 oeosooocococeco 64-2 64-0 63-8 63-0 63-8 64-5 65-2 65-9 66:5 67-0 68-2 69-3 69-4 69-5 68-6 cocococoocoocoo 63-0 62-7 63-1 63-9 65-0 66-2 67-7 70-5 71:3 71-2 71-0 69-7 64-6 64:5 65-1 65-5 66-0 66-5 Mdmamm 2dechicesnicem sadgemgnidmdne a2deneesusem eeggegnenann ecococoececos qooeococosccoco DECLINA- TION. BIFILAR. BALANCE, Cor- |Thermo- rected. | meter. Cor- rected. Thermo- meter. 11-27 08-16 08-88 08-72 04-98 05-23 01-78 58-43 00-06 03-97 07-94 12-55 12-69 11-30 06-16 05-29 04-91 07-04 01-75 04-17 04-55 09-96 08-85 09-02 09-82 09-35 08-08 03-23 06-12 06-77 01-68 | 56-85 | 06-46 08-52 10-50 14:17 13-16 | 10-41 | 08-46, 05-92 07.20 07-31 02-93 | 03-43 02-45, 06-73 | 09-05 | 08-77 09-06 , 04-62, 06:86 06-79 25 06-50 24 59.83 Se. Div. % 550-1] 66-2 565-4] 67-2 557-8} 68-0 565-0] 68-2 560-7| 68-3 558-0 540-0 541-2 531-3 530-8 521-7 529-2 547-3 568-2 558-8 564-0 564-4 553-5 548-3 539-4 529-6 535-0 540-1 546-9 547-9 546-9 578-8 580-9 559-7 54:1 545-9 541-8 532-0 525-5 547-4 551-3 552-2 565-0 567-6 560-1 564-1 568-4 539-7 524-7 33-4 529-1} 59-8 547-8} 60-4 992-7 60/9 554-6| 61-6 570-9} 62-8 566-0} 63.8 565-4} 64.2 567-5] 64-4 561-4! 64-1 Mic. Diy. 381-1 416-4 432-3 413-8 409-2 392-3 362-0 382-8 392-8 375-7 363-2 360-0 340-9 381-4 394-9 396-0 388-8 393-6 387-8 401-1 409-4 401-4 367:3 372-8 371-4 402-6 421-3 429-3 419-1 393-2 402-4 426-3 401-7 404-0 388.4 378-0 372-0 406-7 481-3 485-4 441-7 || 394-8 362-4 389-1 373-6 371-5 365-4 | 361-5 370-2 392-2 386-2 369-2 369-1 386-1! 67-3 68-4 69-3 69-3 69-1 68-2 65-0 64-7 65-0 65-2 65-9 66-5 eanichidnm soddmememeem gegenenen Observer’s Initial. dim dgdauidhamdmm daceng | DECLINATION. Magnet untouched, April 144, 1846—May 1847. Observed 3™ after the Declination, s=0:000010. BALANCE. + Extra Observations made. 308 DAtLy OBSERVATIONS OF MAGNETOMETERS, JuLY 20—30, 1846, Gittingen |} Brrizar. || Banance. | * 4] Gottingen Biriwar. BALANCE. Mean Time || DrecLtina- ||/~ 2-5 | Mean Time || Drciina- of Declina- TION. Cor- |Thermo-| Cor- |Thermo-| 2° | of Declina- TION, Cor- |Thermo-|| Cor- |Thermo- tion Obs. rected. | meter. || rected. | meter. S = tion Obs. rected. | meter. || rected. | meter. ad oh m. = 4 Se. Div. S Mic. Div. | Gl Ba m. iss ‘ Se. Div. % Mic. Div. 9 20 18 0 | 25 04-78 || 548-4! 61-3 || 342-5 | 60-5 H 125 2 0} 25 10-41|| 544-6] 62-1 366-0} 63-4 20 0} 03-09 || 538-6 | 60-8 360-4 | 60-2 H har ot 12-98 || 579-5) 63-2 383-9| 64-7 22 0 | 04-93 || 537-7| 60-6 || 370-3) 60-4 || W 60 10-04 | 574-8 | 64-2 414-1) 65-5 23 0 || 07-24 || 534-2| 60-6 361-7 | 60-5 W we 07-67 || 584-0| 64-6 || 406-6) 65-8 a1 00 07-13 || 547-6| 60.7 || 376-1 61-0 || W 8 0 || 25 00-57 || 581-2] 64-8 418-7 | 65-7 120 10-43 || 557-6| 61-0 396-7 | 61-5 B 10 ot 24 54-72)| 573-5) 64-5 308-2| 64-5 Cy 10-07 || 555-7 | 61-3 394-9} 62-2 WwW 4 0 09-03 || 559-5 | 62-4 379-0| 63-9 || H | 26 18 0 || 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 10 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 WwW 23 0 10-09 || 534-8 | 63-0 360-2) 63-9 10 0 06-44 || 555-1 | 63-6 380-2| 63-9 Wwi27 0 0 11-21 || 539-2} 63-6 356-0| 65-0 ie 0 12-22 || 541-6| 64-4 343-8 | 66-2 18 0 || 25 07-51 |) 553-5) 61-3 347-2 | 60-6 H 2 0 14-17 || 548-8| 65-4 350-4| 67-2 20 0 02-96 || 552-0} 60-9 341-4} 60-4 H 4 0 12-22 || 560-4) 66-7 404-1] 68-7 22 0 00-96 || 536-4) 60-5 367-3 | 60-8 WwW 6 0 07-84 || 573-3 | 67-8 412-2) 69-5 23 10 05-58 || 530-7 | 60-8 378-3 | 61-4 H i 10) 02-69 || 569-7 | 68-0 423-9| 69-5 93. O0e10 08-77 || 533-3 | 61-2 379-8 | 62-0 WwW 8 0 05-23 || 568-7| 68-0 403-6 | 69-2 ia ® 10-87 || 539-5 | 61-7 373-3 | 62-8 H 10 0 || 25 03-37 || 556-7) 68-0 374-8 | 68-5 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 0 || 24 59-16)| 533-9] 66-3 332-6| 66-2 6 0 05-29 || 583-9) 64-0 415-9} 65-5 W 20 0 || 25 01-54}| 536-3) 66-1 357-1) 66-0 a0 02-69 || 569-6| 64-3 446-5 | 65-5 Ww 22 0 02-05 || 534-2| 66-0 362-9| 66-3 8 0 07-11 || 561-9| 64:5 416-0} 65-3 W 23 0 03-94 || 533-2) 66-1 360-4| 66:8 10 0 07-40 || 560-6 | 64-2 386-1 | 64-5 Wwi]28 0 0 06-63 || 531-1| 66-6 354-1] 67-5 1 0 10-58 || 536-2) 67-0 350-8} 68:3 18 0 || 25 01-41] 553-1] 61-8 390-5 | 61-0 H 2 0 13-32 || 544-6| 67-8 350-3 | 69-5 20 O 06-01 || 545-3 | 61-4 389-7 | 60-9 H 4 0 11-81 || 557-7 | 69-0 357-9| 70-7 224 10 10-03 || 528-6} 61-4 385-9 | 61-5 WwW Gi 0) 08-21 || 565-9| 69-8 381-5| 70-8 230.10 09-91 || 538-9} 61-5 361-9| 61:8 H ch ty) 05-38 | 556-5) 69-8 391-2| 70-6 23) 0n0 14-87 || 547-0| 61-7 366-0 | 62:1 WwW 8 0 06-26 || 563-3) 69-7 384-0| 70-2 1210 15-20 || 552-4} 61:8 370-2| 62-3 H 10 0 || 25 05-02)| 559-7| 69-0 372-4| 69-2 270 13-63 || 565-1] 62-0 388-6 | 62-5 WwW 4 0 10-83 || 565-6} 62.4 415-9} 63-2 Ww 18 0 || 24 59-50]| 545-7| 66-7 391-3| 66-1 6240. 09-87 || 552-1| 63-0 443-6 | 63-8 WwW 20 0 || 24 57-01 |) 545-5) 66-3 380-8| 65-7 7 0 08-06 || 561-8] 63-0 419-6 | 63-7 Ww 22 0 || 25 00-85 || 535-4] 66-0 374-4) 65-7 8 0 05-58 || 564-3) 63-1 413-8} 63-7 W 23° (0 05-55 || 535-5 | 66-0 377-5| 65:9 10 0 04-91 || 549-4| 63-0 371-9 | 63-2 wi29 0 0 08-75 || 543-2| 66-0 355-7| 66-0 0 13-27 || 544-:0| 66-0 356-0 | 66-0 18 0 || 25 00-20)| 547-0| 61-0 390-2} 60-2 Sa 210) 16-55 || 546-5| 66-0 360-4| 66-1 20 0 00-01 || 540-8| 60-7 403-7 | 60-2 H 4 ot 16-80 || 575-0| 66-1 451-0| 66-2 22 0 02-46 || 537-2) 60-5 378-3 | 60-3 W 6 Ot 14-78 || 614-9| 65-9 656-4| 65-8 23» 0 05-42 || 537-8} 60-4 379-3 | 60-7 H 7 OF 07-20 || 590-1) 65-6 552-2| 65-1 24 0 0 09-19 || 545-8 | 60-6 374-3 | 61-2 W 8 0 08-41 || 556-5 | 65-3 485-0] 64-1 1 0 13-00), 551-9} 61-0 366-1| 61-9 H 10 0 07-64 || 545-6 | 64-7 401-0} 63-4 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 0 || 25 02-15|| 545-4| 62.4 382-4} 61-3 6 0 10-40 || 587-1) 63-7 374-5 | 65-2 WwW 20 0 02-12 || 532-2) 62-0 383-3 | 61-1 7 O | 25 09-10)| 599.5) 64-0 413-7| 65:3 Ww 22 0 04-14 || 527-3) 61-8 374.2| 61-7 8 OF | 24 59-34|| 563-4) 64-4 480-9) 65-4 WwW 23 0 07-00 || 528-7 | 62-0 373-7 | 62-1 10 0 | 25 04-17]| 564-3] 64:3 410-1) 64-3 Wwy30 0 0 10-09 || 529-1| 62.2 367-1| 62-6 0 13-02 || 536-0} 62-7 365-7 | 63-3 18 0 || 24 57-86|| 539-5 60-8 367-4| 59-7 H 2 0 12-42 || 541-0} 63-1 356-7 | 64-2 20 0 | 25 01-01 )| 536-8} 60-7 368-6 | 60-0 H 4 0 12-45 || 571-0) 64-4 363-5 | 65-9 22 0 || 02-52 || 536-5 | 60-7 363-8 | 60-6 WwW 6 0 09-19 || 567-2) 65-7 390-1} 67-3 23° 0°} 05-62 | 536-6| 60-8 357-3 | 61-2 H 7 0 07-64 || 577-7 | 66-2 393-0| 67-7 25 0 0 08-41 || 540-5) 61-1 344-8 | 61:8 Ww 8 0 || 25 07-27|| 574-2) 66-6 397-9) 67-7 |) Tae 09-56 || 552-5’ 61-6 342-4) 62-7 H } 10 Ol] 24 51-931| 550-3! 66-7 || 386-6! 66-9 }) DEcLINATION. Magnet untouched, April 144, 1846—May 1847. Birrar. Observed 2™ after the Declination, k=0:'000135, BALANCE. Observed 3™ after the Declination, k=0:0000 0 + Extra Observations made. } DAILY OBSERVATIONS OF MAGNETOMETERS, JuLY 30—AveusT 10, 1846. 309 "Gottingen BiFibaRr. BALANCE. % = Gottingen BIriar. BALANCE. | % = Mean Time |) Decrina- £5] Mean Time || Decuina- aes of Declina- tion. || Cor. |Thermo-|| Cor- |Thermo- Be of Declina- TION. Cor- |Thermo-|| Cor- |Thermo- Ze tion Obs. | rected. | meter. || rected. | meter. ||5 tion Obs. rected.| meter. || rected. | meter. | 5 = ——E se | 2 —_— . ii) ae lsc. Div.| ° || Mic.Div.| © Fig eee Sec SaDiv.| © |Miapiv.| ° | 80 18 15 || 24 57-98 || 538-3| 64-6 || 303-2) 64-0 | W 5 2 0 | 25 11-74|) 551-0) 67-3 || 364-5| 68-0 || H ~ 20 0 || 25 00-44] 533-2] 64.2 || 355-6) 63-8 Ww 4 0) 08-82 || 548-8] 68-3 | 380-8} 68-8 | W 292 0 04-17 || 530-5] 64-0 || 363-6] 63-8 | H 6 0 05-58 |) 561-6] 69-5 | 370-3} 69-9 | W = 23-0 05-99 || 542-5) 64-0 || 361-2) 64-3 | W Fao! | 04-37 || 560-2) 70-0 | 378-2) 70-5 | W oF 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 1 0 13-90 || 539-5| 64-7 || 347-9] 65-7 H 10 0 || 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 | | | 4 0 09-74 || 564-8] 66-8 || 375-4| 68-3 WwW 18 0 | 24 57-31|] 545-0) 66-4 | 384-1) 65-8 | W } Sa) 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 i 7 0 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 tr 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 0 0 12-23 || 546-0| 65-7 | 335-6| 66-5 | H he 1 0 18-07 || 535-4| 66-7 | 335-8| 67-7 | H Pe 18 0 || 25 00-17] 534-6] 64-4 || 358-0] 63-6 || W 20 18-34 || 551-7| 68-1 331-0] 69-2 || H a 20060 01-65 | 538-6] 64-0 || 368-4] 63-6 || W 4 0 05-47 || 562-7] 71-0 || 418-4] 72-0 | W mm 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 i 23 0 01-54 || 534-1} 64-4 || 374-9} 65-0 || W ang 05-25 || 561-9] 74-5 || 418-3] 74-8 || W 0 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 LO 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 | i 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 ; 6 0 01-98 || 586-8) ------ 434-7 | 71-8 H 20 Of] 25 07-20] 525-3) 68-0 | 352-6] 67-5 | W ; 7 0 06-23 || 563-2) «--.-- 404-5} 71-9 H 22 OF] 07-00 || 504-6} 67-2 || 368-7] 66-8 | H ’ 8 Of|| 25 05-45 |) 565-0) ---.-- 401-0} 71-7 || H 23 OF 15-54 || 503-3] 67-1 365-5 | 66-8 | W = 10 O || 24 57-78)| 549-8} ------ 349-0| 70-7 | H fi 1O8"07| 16-25 || 513-1} 66-8 | 364-3) 66-9 || H i 1 6 17-76 || 528-6} 66-8 | 409-9] 67-2 || H P2218 0 || 25 00-45 || 544-4] --+--- 347-6| 66-5 || W 2 0 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 (22 0 00-44 || 526-8) «+++ 365-8 | 66-5 H 6 0 11-10 || 589-2) 67-2 | 440-8} 67-2 | H Zo 0 04-58 || 543-3] «++. 379-2| 66-7 H Coe) 07-54 || 571-1| 67-0 || 472-8| 67-1 H » oO 0 05-52 || 537-1] «+++. || 385-8| 66-9 H 8 Of 09-46 || 567-2) 66-8 | 443-9| 67-0 | H 1 0 07-54 || 540-1] «sees 381-1] 67-2 || H 10 0 04-21 || 552-7| 66-7 | 344-1| 66-8 | H 2 0 10-11 || 536-0] ------ 377-7| 67-7 || H 4 «0 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 moO 03-97 || 574-8| 71-5 || 395-6] 71-5 H 20 Of 13-23 || 533-5} 65-4 || 288-3] 65-5 || W 7 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 i100 05-82} 562-0) 72:6 || 368-7| 72-3 H & 20 80 10-23 || 530-9} 65-8 || 387-8| 66-4 || H | 1 0 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 WwW 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 0 06-86 || 523-3} 66-6 || 399-5| 67-0 || W 7 O | 24 59-93 |) 562-4| 69-8 | 436-0] 70-2 || H I 0 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 1 0 11-42 || 539-0! 67-6 || 360-8] 68-2 H 10 07 04-42] 551-2| 70-1 | 360-2} 70-2 || H { a2 3 12-63 || 539-8| 68-3 || 367-2] 68-9 || H | | | aa 08-82 |) 551-2! 69-8 || 375-3] 70-3 Wi 918 O | 25 07-24|| 515-3) 64-2 || 294.2] 63-7 || W 6 0 04-48 |, 558-4] 71-0 |) 389-6) 71-2 || H 20 0 04-39 || 532-5| 63-6 | 358-9) 63-2 || W 7 0 03-90 | 564-8} 71-2 || 384-5] 71-5 H 22 0 07-62 || 519-2) 63-2 | 389-7| 63-2 || H 8 3 03-70 || 558-1] 71-2 |) 391-3) 71-5 H 23. 0 | 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 O 10-67 || 532-6) 63-7 || 393.2| 64.2 || H { 2 iG) 14-70) 532-2) 64-2 | 406-9] 65-0 || H 4 || 25 00-08 || 544-7| 67-0 || 391-2) 66-8 H Zerg 14-13 | 544-6] 65-0 | 435-1] 65-4 || H 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 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 mt) 03-92 || 534-5) 66-0 || 387-4| 66-3 | W 7 0 06-32 || 563-6) 67-7 | 465-3) 67-7 || H 0 08-41 || 538-2) 66-4 || 381-6| 67-0 || W 8 0] 02-06 | 566-1) 67-5 || 444-7| 67-3 || H mn!) 11-32" 545-0! 67-0 || 369-4! 67-5 H 10 0° 03-45 ' 550-8! 66-7 | 395-8! 66-6 || H DECLINATION. Magnet untouched, April 144, 1846—May 1847. AR. Observed 2™ after the Declination, k=0-000135. BaLance. Observed 3™ after the Declination, s=0:000010. t+ Extra Observations made. G. AND MET. oBs. 1846. 41 310 DAILY OBSERVATIONS OF MAGNETOMETERS, AUGUST 10—20, 1846. Gottingen | Birinar. BALANCE. % | Gottingen BIFILaR. BALANCE. % = Mean Time || Decuina- £5] Mean Time || Decuina- Bs of Declina- TION, Cor- /Thermo-)| Cor- Thermo-}| 2 & of Declina- TION. Cor- |Thermo-) Cor- |Thermo- ZS tion Obs. || rected. meter. || rected. | meter. ||O tion Obs. rected. | meter. || rected. | meter. ||}O d hb. m. J ae io Div. \-! Mie. Diy. 2 d. h m, 7 ’ I ceenstes — Mie. Div. ct a 10 18 0 || 25 06.24|| 539-2) 62-7 || 357-4| 62-2 | H |} 15 2 0 |] 25 11-00} 552-4) 61-2 | 444-4] 61-8 || B 20 0 07-22 |) 543-4| 61-9 || 346-4] 61-6 | H 4 0 10-87 | 573-8| 61-9 || 433-0| 62-5 || H 22 0 00-82 | 528-3] 61-5 || 381-2] 61-5 || W 6 0 06-07 || 553-9] 62-2 || 493-5] 62:7 | H 23 0 04-69 | 522-2) 61-6 | 386-3] 61-8 || H 7 0} 06-06 || 559-9| 62-3 || 466-6| 62-7 || H Md 0. 0 08-88 | 528-0] 61-7 |) 382-2| 62-2 || W 8 0 || 25 05-58 || 554-4] 62.3 || 429-8] 62-7 || H Tig iO 11-57 | 534-6| 62-0 |) 382-9] 62-5 || H 10 © || 24 57-31}| 566-3) 62-2 || 365-2| 62-5 || H 2 0 12-80 | 544-3] 62-3 || 393-4] 62-7 || W | 4 0 11-34 | 555-4) 62-8 || 407-6] 63-5 | H |} 16 18 Of] 25 11-03) 522-5] 62.2 |) 262-6] 62:0 | W 6 0 08-01 | 564-8| 63-6 || 409-3] 64-0 || W 20 0 11-37 | 543-9| 61-7 || 284-2] 61-5 || W Ta 10 06-30 | 563-1] 63-9 || 406-7] 64-3 || W | 22 0 09-54 || 524-2) 61-6 || 363-7] 61-8 || H 8 0 05-47 | 565-7| 64-0 || 391-5] 64-2 || W 23% 0 10-30 || 537-4] 61-8 || 368-5] 62-2 || H 10 0 01-27 | 547-6} 63-7 || 387-0) 63-7 | W 4) 17 0 0 11-12] 539-8| 62-2 || 353-9] 62-7 || H 1 O| 09-51 || 536-4| 62-6 || 353-7| 63-2 || H 18 0 || 25 01-63)| 554-3] 61-3 || 362-7| 61-0 || W | 2 0 | 10-16 || 541-9] 63-2 |) 356-2] 63-5 || H 20 0 04-58 | 540-9| 61-0 || 375-8| 60-8 || W 4 0] 08-34 || 547-1] 63-6 || 365-7| 64-0 || W 22 0 | 00-74 | 537-7| 60-8 | 393-1) 61-0 | 6 0 || 25 04-37|| 569-3] 64-0 || 403-1| 64-5 || H 23 0 03-99 | 530-3| 60-9 || 388-1] 61-2 | W 7 Of) 24 55-53|| 592-5| 64.2 || 446-8) 64-7 || H 12 0 0 08-65 || 525-5] 61-2 || 387-1] 61-5 || H 8 0 || 25 04-31]| 560-1] 64-3 || 412-4] 64.7 || H 1 0 10-23 || 541-3| 61-6 |) 382-3] 62-2 || H 10 0 04-46 || 556-1| 64-3 || 373-6] 64-5 || H 2 0 11-52}| 551-2| 62-1 |) 381-6] 62-7 || H | 4 of 02-48 || 578-0] 63-1 || 495-9} 63-7 || W 18 0 || 25 00-06}| 541-9] 62-2 || 347.3] 62-2 || H 6 0 08-26 || 574-9| 64-4 | 510-1} 64-8 | H 20 0 | 01-38 || 541-1] 61-6 || 357-8| 61-5 || H Te iO 08-08 || 566-4) 65-0 | 485-9] 65-2 | H 2510 02-77 || 535-3} 61-2 || 372-0} 61-1 || W 8 0 || 25 10-23 || 568-9| 65-1 || 441-0] 65-3 || H 23 0 | 05-42 || 530-7] 61-1 || 364-4] 61-0 || H 10 Oft|\ 24 57-71] 539-5| 64-8 || 353-0| 64.8 | H | 18 0 0 09-60 | 544-4} 60-9 |) 355-9] 61-1 || W | | | i S| 11-07 || 543-2} 61-0 || 362-2] 61-2 || H 18 0 || 25 07-57 || 531-0} 62-4 || 325.4] 62.2 || W 2 0] 13-46 || 545-2] 61-0 || 353-0] 61-2 || W 20 0 11-75 || 538-0] 61-9 |) 343-2) 62-0 || W 4 0| 10-11 |) 548-5} 62-0 || 375-2] 62-7 || W 2p Wit) 11-89 || 507-1| 61-9 || 380-4] 62-2 || H 6 0] 05-40 | 553-8] 63-6 || 412-1] 64-1 || W 23 0 10-56 || 535-3] 61-9 || 371-2] 62-6 || W 7205) 02-84 || 564-8) 64-0 || 417-7] 64-4 | W 13: 70), .0 10-25 || 542-9| 62-4 | 379-7] 63-0 || H 8 0 04-95 || 564-0} 64-3 || 392-1| 64-5 || W in 0 11-54 || 529-2] 62-7 | 403-5] 63-2 || H 10 0 | 04-24 || 552-8] 64-0 || 369-0| 64.0 | W 2 0 08-99 || 543-9| 63-0 || 441-7] 63-5 || H | | 4 0 09-69 | 554-6| 63-5 || 498-6} 64.0 || W 18 0 | 25 00-84] 545-6] 61-1 || 352-3| 60-7 || W 6 0 05-45 | 568-7| 64-6 || 507-1] 65.0 || H 20 0 01-61 || 536-1} 60-3 || 378-4] 60-1 || W 70 04-04 | 562-7} 65-0 || 478-8] 65.3 || H 22 0 03-45 || 529-9] 59-9 || 377-1| 60-0 || H 8 0 02-67 | 562:6| 65-2 || 468-8| 65.3 || H 23 0 || 06-79 | 531-5] 60-0 || 372-6} 60-5 || W 10 0 06-79 | 557-3) 64-8 | 389-0 64-7 | H | 19 0 0 | 10-80 || 529-2| 60-7 || 371-8} 61-5 || H 1 0] 11-41 || 543-5] 61-7 || 364-3] 62-6 || H 18 0 || 25 12-35 | 550-5] 60-5 || 205-9} 59-8 || W 2 0] 11-00] 554-3] 62-7 || 365-5] 63-4 || H 20 0 06-88 | 544-7] 59-5 || 223.6] 58-9 || W 4 0} 08-75 || 551-6| 64-4 || 369-3| 65-0 || W 22 0 02-01 | 527-6} 59-0 || 323-9] 59.0 || H 6 0] 02-93 | 568-3] 65-9 || 436-0] 65-5 || H 23 0 07-27 | 528-3] 59-0 || 332-5} 59-3 || W 7 0} 01-93 | 564-5) 66-7 || 445-3| 66-7 || H 14 0 0 08-90 | 530-1] 59-3 || 338-6] 60-0 || W 8 0| 03-55 || 559-1 | 67-0 || 426-8] 67-0 || H 0 12-31 | 542-9} 60-1 || 345-5| 61-0 || H 10 0 01-45 || 550-5] 66-8 || 371-7] 66-7 || H 2 0 14-92 | 558-2] 61-1 || 359-5| 62-2 || H | 4 Of! 12-75 | 524-2| 63-3 || 540-4| 64-0 || W 18 0 || 25 00-51|} 542-6] 62-6 || 382-7] 62-1 || W 6 0} 08-11 | 554-0] 64-8 | 439.8] 65-3 || H 20 0 01-14] 534-1} 61-7 || 378-6] 61-3 || W 7 0 | 25 07-84 | 562-0) 65-2 || 403-0] 65-7 || H 22 O'| 00-40 || 533-6} 61-3 || 363-2] 61-2 || H 8 Of) 24 59-93 | 564-3) 65-4 || 431-0] 65.5 || H 23 0 || 05-02 || 536-5} 61-2 |) 358-4) 61-3 || Wf 10 Ot] 24 57-71 | 532-1| 65.0 || 293.4| 64.2 | H | 20 0 0 | 09-08 || 537-8| 61-3. || 355-1] 61-5 || H 1 oO} 13-05 | 547-3] 61-4 || 348-2] 61-7 || H 18 © || 25 03-14 | 548-2} 61-7 || 301-6] 61-4 || W 2 0} 14-53 | 548-4) 61-6 || 355-5) 61-9 || H 20 0 | 00-42 | 527-1) 61-0 || 360-8] 60-7 || W 4.0 07-51}|| 552:5| 61-9 || 385-5] 62-3 || W 22 0] 05-69 | 516-4) 60-5 || 382-6| 60-5 || H 6 0] 04-37 || 565-3| 62-2 || 385-9] 62-7 || H 23 0 || 07-60 | 521-8| 60-6 || 394-5] 60-8 || W 7 0} 04-37 | 558-5) 62-2 || 386-8| 62-7 || H 15 0 0] 12-92 | 524-1| 60-7 || 402-0] 61-0 | H Sao 05-05 || 558-1| 62-2 || 374-1| 62.7 || H a0 15-27 | 528-4| 60-9 || 402-7! 61-5 || H 10 0 05-22!| 554-8] 62.2 || 367-2! 62:5 || H | DECLINATION. Magnet untouched, April 144, 1846—May 1847. BiriLar. Observed 2™ after the Declination, k=0-000135. BALANCE. Observed 3™ after the Declination, k—=0-000010. + Extra Observations made. Gottingen Mean Time | of Declina- tion Obs. = = ecooocoocooos ceooooccecocos att ooooococoeceso =k = cococoocoececo eococcococe DECLINA- TION. 25 24 25 25 02-42 59-86 05-52 06-14 10-83 | 14-40 14-37 10-38 06-97 05.25 04-44 | 03-40 | 01-98 08-65 01-75 06-73 12-72 17-70 17-93 11-81 08-79 05-58 05-29 16-08 06-89 59-54 02-46 05-25 10-30 14-65 15-41 11-28 08-52 08-95 03-75 01-96 06-04 00-00 04-86 09-76 13-91 10-83 12-42 11-59 07-00 03-38 57-71 05-11 00-57 59-90 05-36 06-97 11-52 13-12 DAILy OBSERVATIONS OF MAGNETOMETERS, AUGUST 20—31, 1846. dll BIFILAR. BALANceE. Bees Gottingen BIFivar. BALaNnce. ee >-=| Mean Time || Decrina- | Ps Cor- |Thermo-|) Cor- |Thermo-|| 2°5 | of Declina- TION. Cor- |Thermo-| Cor- |Thermo-) 2 ‘= rected. | meter. || rected.| meter. 5 I tion Obs. rected. | meter. || rected. | meter. lS — Se. Div. ° Mic. Diy. 2 a. bh. m. ae ee Se. Div. a Mic. Div. os | 547-4} 61-1 370-7 | 61-1 Wi]26 2 O| 25 15-14}| 551-9} 59-7 || 341-4] 61-0 W 535-1} 61-0 || 383-3} 61-1 W 4 3 11-57 || 554-0} 62-2 || 369-4] 63-8 | H 530-9} 60-8 || 368-1) 61-0 H 6 0 08-38 || 559-6| 64-4 || 368.4] 65-8 || W | 534-6] 61-0 || 357-0} 61-3 WwW 7 0 07-24 || 560-9| 65-0 || 359.4 66-3 WwW 542-0} 61-2 || 346-9} 61-5 H 8 0 00-64 || 563-3] 65-6 |) 365-2| 66-6 WwW 540-3} 61-7 || 343-9} 62-2 H 10 0 | 25 06-59 || 553-9) 65-5 352-7| 65-9 | W 541-7| 62-2 || 353-1] 63-0 || H I 551-7| 63-7 || 379-0) 64.3 || W 18 0 | 24 57-71 || 546-8} 60-5 296-9] 59-5 H 562-:9| 65-2 || 363-9| 65-7 H 20 0 || 25 01-31 || 534-6| 58-2 | 348-3] 58.2 || H 571-9} 65-6 || 367-7) 66-0 H 22 0 07-34 || 525.4 | 58-5 366-0| 57-8 || W 558-1] 66-0 || 401-3) 66-2 H 23 0 | 11-77 || 532-6} 58-2 || 360-8] 58.0 H 552-8| 65-7 || 373-5| 65-7 H | 27 0 0 15-01 || 529-1} 58-3 368-3 | 58-4 WwW 16 13-09 || 539-0 | 58-7 || 367-5| 59-5 H | 556-0} 62-9 || 374-1| 62-7 || W 2°0 12-49 || 547.9| 59-5 || 359-7} 60-5 WwW 538-6| 62-3 || 365-5| 62-0 || W 4 0 08-88 || 555-8 | 61-8 362-4) 63-5 H 531-7] 61-8 || 362-5) 61-8 H 6 0 05-25 || 563-2| 64-0 || 348-9} 65-3 WwW 529-3| 61-9 || 357-3} 62.3 WwW on 8 03-13 || 581-4) 64-8 357-2| 65-8 W 533-9] 62-3 || 346-3) 63-0 H 8 Ot} 25 01-63|| 565-1} 65-2 || 410-5] 66-0 Ww 538-1] 63-1 336-0| 64-0 H 10 Of} 24 57-98 || 524-7) 65-5 318-4] 66-2 || W 552-3) 64-1 332-2| 65-2 H 566-4| 66-5 || 346-7] 67-3 || W 18 0 | 25 02-12)| 544-1) 63-0 || 350-8] 62-5 H 563-6| 68-7 || 378-5| 69-0 H 20 0 || 24 58-85 || 542-9) 62-0 | 370-5] 61-5 | H 566-3 | 69-2 || 390-4) 69-8 H 22 0 || 25 01-21]] 536-6| 61-6 || 360-5) 61-5 || W 558-7| 69-6 || 389-3) 69-7 H 23 0 05-09 || 535-1) 61-6 348-3 | 61-9 H 533-7 | 69-3 206-2} 69-2 H | 28 0 0 10-88 || 535-0 | 61-9 || 335-8| 62-8 | W 1 0 14.87 || 540-2) 62-7 332-8 | 63-9 H 549-3} 60-4 || 386-7} 60-0 H 2 0 16-13 || 556-3 | 63-6 || 329-9} 65-1 WwW 543-6] 59-8 || 389-5) 59-6 Jal 4 3 09-29 || 566-1| 65-7 || 354-6} 67-2 H 533-6] 59-6 || 387-0} 59-6 || W 6 0 | 25 08-01 || 573-7) 67-2 || 432-0) 68-3 | W 532-9} 59.8 375-3} 60-1 H 7 ot 24 56-11 || 584-2} 67-7 || 462-6] 68-5 WwW 533-1| 60-2 || 358-8} 60-8 || W 8 0 || 25 05-15 || 558-4] 67-9 | 428.4] 68-6 || W 539-7] 61-0 || 351-6) 62-0 || H 10 Of} 25 04-84 || 549-5 | 67-6 279-5 | 67-9 || W 544-2] 62-3 || 349-6] 63-1 WwW 556-8} 64-0 || 370-3) 64-7 H 18 O || 24 58-85 || 546-0} 65-0 349-4 | 64-5 H 569-5| 65-0 || 376-2) 65-3 WwW 20 0 || 25 O1-65|) 523-7| 64-2 || 350-1] 63-9 || H 577-4| 65:3 || 382-9) 65-5 WwW 22 0 04-29 || 523-8 | 63-7 355-0} 63-5 WwW 555-3] 65-4 || 401-1) 65.4 WwW 23 0 10-13 || 521-6) 63-5 351-9} 63-5 H 548-4] 64-9 || 325-1) 645 || W] 29 0 O 12-04 || 540-5 | 63-6 | 332-3) 63-8 WwW 1 0 15-36 || 555-8 | 63-7 || 328-7) 64.2 H 526-7| 59-1 321-4) 58-0 H 2 0 14-94 || 554-4) 64-0 | 350-0} 64-6 WwW 537-6| 57-6 || 369-9| 56-7 H 4 0 1]-44 || 553-4| 65-0 || 373-7| 66-0 H 521-1} 56-9 || 379-4) 56-5 WwW 6 Of] 25 00-60 || 590-3.) 65-8 || 394-8} 66-8 W 523-6| 56-8 || 376-9} 57-0 H 7 0 | 24 58-82|| 576-3} 66-0 || 413-9| 67-2 | W 543-9} 57-3 || 364-5) 58-0 || W 8 0 | 25 05-11]| 562-3) 66-3 399-1| 67-0 || W 549-4| 58-3 || 378-9) 59-5 H 10 Of} 25 02.55 || 594-5| 66-1 | 301-7| 66-3 WwW 547-4} 59-8 || 377-5) 60-8 || W 556-8 | 62-5 || 381-7) 63.3 H | 30 18 0 || 25 03-27 || 541-3) 64-0 || 349-5] 63.7 H 568-5| 64-0 || 371-1] 64-7 | W 20 0 00-25 || 541-9} 63-4 | 364-0/ 63-2 H 546-0} 64-6 || 410-4) 65-0 | W 22 0 03-28 || 533-4 | 63-1 367-6 | 63-3 WwW 567-4| 64-8 || 386-0] 65-2 || W 23 0 06-19 || 529-5} 63-2 || 365-9} 63.4 H 553-7| 64-6 || 357-6) 64-6 | W]31 0 O 07-15 || 536-2) 63-3 347-3| 63-7 | W Tes 10) 09-00 || 536-5 | 63-4 345-4 | 63-7 H 543-9 | 59-7 || 349-7) 59-0 H 2 0 11-98 || 542-8 | 63-3 } 343-7) 63-5 WwW 531-2} 58-4 || 383-8) 58-0 H 4 0 09-37 | 550-2| 63-2 || 362-2) 63-5 H 516-6) 57-7 || 375-4| 57-6 | W 6 0 06-01 |) 555-5} 63-3 || 371-4| 63-8 || W 532-2] 57-7 || 364-6] 58-1 | H 7 0 05-08 || 560-3} 63-5 || 372-4| 63-9 | W 534-2) 58:0 || 356-8) 58-7 | W 8 0 04-15 || 561-2) 63-5 || 371-9] 63-8 | W 549-8! 58-8 || 345-9! 59-9 || H 10 0 02-22! 554-0! 63-4 || 344-5! 63-2 || W BIrimar. DECLINATION. Magnet untouched, April 14¢, 1846—May 1847. Observed 2™ after the Declination, k—0-000135. BaLance. Observed 3™ after the Declination, s=0:000010. a | | | Aug. 274 1h, a _ believed that the 7 Extra Observations made. 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 reading at 14 was 20 scale divisions in error, and it has been corrected accordingly. 312 Gottingen — Mean Time of Declina- | tion Obs. coooocecooco: 23 i eceoococeoecoocseco cooocoocococeceo coco = oe oooococe | | BIFILAR. DECLINA- TION. 1 25 00-60 | 01-04 | 03-02 || 06-39 | 09-89 | 13-12 | 14-10 || 09.42) 06-16 05-02 | 05-06 04-58 00-13 02-12 | 04-88 08-31 10-C0 10-25 to ou 12-36 || 4 07-98 05-38 |) 05-82 | 01-54 | 05-52 | 00-64 || 03-27 04-88 08-29 10-06 1061 11-19 06-84 | 03-83 04-75 05-08 05-50 25 Biritar. || Batance. ee Gottingen | ———|| 2. | Mean Time Cor- |Thermo-| Cor- |Thermo-|| 2°E } of Declina- || rected. | meter. || rected. | meter. | 57 tion Obs. } Se. Div. ° | Mic. Diy.| ° | m. 543-7| 58-8 || 366-7; 57-5 || H ) 538-7| 57-7 | 389-3| 56-2 | H ot 532.9| 56-8 | 328-2] 55-9 | W ot 537-2| 56-7 || 382-2) 56.2 || H Ot 541.4] 56-7 || 370-2] 57-0 | W ) 551-8| 57-4 || 354-9] 58-2 || H ot 560-0) 58-3 || 352-4] 59-5 | W 561-1| 61-5 | 346-4) 62:0 || H 0 555-3| 62-4 || 362-0| 63-6 || W 0 558-0| 62:9 || 375-8| 63-8 || W 0 559-3| 63-0 || 373.4) 63-8 | W 0 556-9| 62:8 | 362.4| 63.2 | W 0 | | 0 547-0) 59-8 || 356-5) 59-5 || H 0 | 543-6| 59-2 || 361-1) 59-0 | H ) 536-5| 58-9 || 365-6) 58-8 || W Om 539-4| 59-0 || 363-0 59-1 || H 0 | 538-9| 59-0 | 355-7! 59-5 || W 0 | 544-1| 59-5 || 352-6| 60-5 || H 0) 552-6| 60-2 || 346-3] 61-3 || W 557-5| 61-8 | 346-8| 63-0 || H 0. 562-1| 62-8 || 341-1] 63-8 || W ot 561-5| 63-1 || 343-7| 64.0 || W ) 558-7| 63-3 || 349.3 | 64-0 || W om 556-9| 63-1 | 355-6| 63-6 || W 0 0 545-2| 60-3 | 364-8| 60.0 || H 0| 535-5| 60-0 || 370-6) 59-7 || H 0 535-8| 59-8 || 357-3| 60-0 || W ) 534-4| 60-0 || 350-5| 60-5 || H 0 536-7| 60-4 | 345-0/ 61-3 || W oF 541-7| 61-2 || 339-3] 62.4 || H ) 548-3| 62-0 || 330-6| 63-2 || W 560-4| 63-2 || 340-5) 64-2 || H 0 560-1] 63-8 | 347-3) 64-7 | W 0 554-8| 64-0 || 345-9) 64-8 || W ty) 558-3| 64-0 | 345-6] 64.8 || W 0 558-7 | 63-9 || 348-6] 64-4 | W 5 ty) i 536-7| 61-5 || 304-5| 61-5 || H 0 543-9| 61-2 |) 273-7| 61-2 || H 0 | 530-5| 61-1 || 302-9| 61-5 || W 0 539-3| 61-4 | 360-6| 62:0 | H 0 526-8| 61-9 | 353-5) 62-7 || W 0 554:0| 62-4 || 361-7| 63-4 | H 0 536-9| 63-0 || 406-0| 64-0 || W 544-5| 64-4 || 415-9] 65-4 || H ) 548-5| 65-7 || 401-8] 66-7 || W 0 547-3| 66-0 || 387-1| 66-8 || W ) 552-3| 66-0 | 375-3| 66-8 | W ) 549-3 | 66-0 | 376-8) 66-5 | W 0 | 0 559-7| 63-5 || 336.9| 63-5 | H 0 527-9| 63-0 | 369-4] 63.0 | H 0 515-3| 62-7 || 379-9| 62:7 | W ) 517-6| 62-7 | 415-1| 62-8 | H 0 521-6) 62-8 | 392-7| 63.4 | H 0 556-1| 63-4 || 418-4] 64.2 || H 0 DECLINATION. Observed 2™ after the Declination, k=0-000135. BALANCE. DECLINA- TION. ° , 17-15 11-82 59-63 57-34 07-51 03-06 02-42 |) 05-80 07-60 09.29 | 10-20 | 09-20 | 06-12 03-94 04-44 04:98 03-97 05-29 11-51 12-01 11-54 14-80 14-57 13:37 10-67 57-02 58-42 59-66 25 57-14 |) 14-04 | DaiLy OBSERVATIONS OF MAGNETOMETERS, AUGUST 31—SEPTEMBER 10, 1846. Birivar. BALANCE. Cor- |Thermo-| Cor- /Thermo-! rected. | meter. rected. | meter. Se. Diy. E Mic. Div. = 557-2| 63-9 || 387-7| 65-2 634-6 | 65.9 739-2 | 67-3 625-1! 67-4 |) 601-5) 68-6 560-1| 67-8 || 475-3) 69-2 552-1| 67-9 | 440-2) 68-8 513-4 | 67-7 132-7 | 68-0 | 539-8 | 66-0 372-1| 65-8 536-7) 65-4 382-1) 65-2 526-7) 65-1 381-4) 65-1 530-4) 65-1 369-4 | 65-1 536-9 | 65-7 | 364-7| 66-5 538-4| 66-3 || 362-6] 67-3 541-2| 67-0 370-9 | 68-2 550-7 | 68-8 371-7} 70-2 547-8 | 70-6 369-3 | 71-8 548-7 | 71-2 370-9 | 72-3 548-0] 71-5 | 365.9) 72.2 545-4) 71-3 || 366-7 | 71-7 540-1 | 67-8 378-9 | 67-3 530-1) 67-2 329-1 | 66-7 527-2| 66-6 339-0 | 66-5 528-0) 66-6 356-0 | 66-7 526-8) 66-6 380-7 | 66-9 541-5| 66-8 395-4 | 67-0 558-7 | 66-8 431-0| 67-0 593-6 | 66-8 532-9 | 67-2 588-1 | 67-2 539-0) 67-5 569-8 | 67-3 501-5 | 67-6 536-9) 67-4 426-6 | 67-4 536-8| 67-0 || 390-7| 66-8 538-1) 63-0 398-2 | 61-8 533-4| 62-2 | 404-4| 61-0 519-9) 61-6 401-2) 61-0 526-0) 61:5 402-0 | 61-2 528-7| 61-7 | 396-1) 61-9 537-9| 62-0 || 389-3] 62-5 550-6 | 62-5 |) 381-9) 63-1 555-6| 63-6 | 432-5) 64.2 562-3) 64:3 489-3 | 65-0 553-9| 64-5 || 453-7| 65-0 551-7 | 64-6 415-6| 65-0 548-8) 64-3 385-6 | 64-3 540-7 | 59-0 411-8) 57-5 533-6) 57-5 408-4} 56-0 529-9 | 56-6 389-5 | 55-5 529-6 | 56-4 385-4 | 55-8 537-8 | 56-5 379-3 | 56-5 540-0| 57-1 || 380-7 | 57-7 540-5| 58-0 || 375-2) 59-0 559-4 | 60-2 393-1) 61-5 557-3 | 62:3 431-7 | 63-3 556-8 | 63-1 457-5 | 63-7 553-6 63-2 465-9! 63-7 543-1) 63-0 404-6) 63-3 Magnet untouched, April 144, 1846—May 1847. Observer's Initial. Smmemdmdmdh godemdmememm ddggmgmdndme spidgggumednm sanaam Observed 3™ after the Declination, =0:000010. + Extra Observations made, | Gottingen | Mean Time of Declina- | tion Obs. 10 = + — cooooococoococoesceo ooooooooocoo DaiILy OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 10—21, 1846. oooocoe BIFILAR. BALANCE. % | Gottingen Birivar. BALANCE, DECLINA- 2 -£ | Mean Time || DECLINa- > TION. Cor- |/Thermo-|| Cor- |Thermo-|| 2°g } of Declina- TION. Cor- |Thermo-|| Cor- /Thermo-|| 2 rected. | meter. || rected. | meter. 5 Fe tion Obs. rected. | meter. rected. | meter. 5 o a Se. Div. S Mie. Diy. c iy pl.) ) 2 4 Se. Div. 0 Mic. Diy. ° 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 | 04.37 || 529-2] 58-7 372-3 | 58:2 || H 4 0 08-28 || 547-8} 62-8 362-4] 63-5 | 20-30 || 534-1) 58-4 341-2} 58-3. | W 6 0 05-77 || 553-0) 63-5 359-4) 64-2 16-55 || 542-6| 58-6 364-6| 58-8 || H 7 O 05-36 || 556-2| 63-7 357-0} 64.3 | 17-78 || 525-4} 58-9 392-1] 59-5 | Ww 8 0 05-30 |) 556-8} 63-8 || 355-0) 64-3 W 17-93 || 534-0] 59-6 413-7 | 60-5 H 10 O 04-71 | 553-2| 63-7 357-7 | 64-2 W 17-58 || 563-3) 60-5 452-5 | 61-8 W | 25 12-01 || 537-0) 63-1 477-4| 64-8 Ww 18 0 | 25 04.75) 548-7) 61-5 || 337-9| 61-0 H 24 43-69 || 589-2} 65-5 741-9} 67-0 WwW 20 O 01-16) 546-4] 60-7 | 358-2| 60-2 H 24 57-75 || 563-2) 66-2 529-4| 67-5 WwW 22 0 05-30 | 528-8| 60-3 | 367-5] 60-0 WwW 25 03-77 || 550-8 | 66-7 444-7 | 67-7 Ww 23. 0 10-20 | 527-4} 60-2 || 362-5) 60-0 H 06-50 || 579-3} 66-9 228-1] 67-6 Wi]17 0 0 12-56 || 537-2) 60-2 354-0} 60-3 || W tL 0 14:50 | 537-7| 60-4 | 361-5] 61-0 H 25 01-31 || 532-0} 64.4 292-8 | 64-2 H 2 0 13-94 | 541-4} 60-9 || 368-4] 61-5 WwW 06-44 || 519-9} 63-8 346-6 | 63-7 H 4 0] 07-89 || 549-9} 61-9 | 365-8 | 62-7 Ww 08-52 || 520-3} 63-6 378-6 | 63-7 | W 6 0) 06-16) 559-3| 62-5 | 380-1} 63-2 WwW 12-15 || 527-4| 63-6 386-4} 64-0 WwW 7*-05| 05-65 || 547-1| 62-7 396-1] 63-2 W 09-98 || 524-5} 63-9 389-7| 64-5 | W 8 0 03-81 || 555-7} 62-7 389-6 | 63-2 WwW 11-37 || 538-5} 64-5 401-3 | 65-7 H 10 0} 07-11 || 555-0} 62-6 312-8} 62:8 WwW 13-16 || 558-4} 65-1 389-6 | 66-3 Ww | | 05-15 || 571-6} 66-8 477-2| 67-38 | H 18 0 | 25 03-90 || 548-8} 60-2 || 366-7| 59-5 H 05-92 || 543-7} 67-6 417-5 | 68-3 WwW 20 O 02-45 || 543-5| 59-4 | 370-7] 58-5 H 02-75 || 558-5| 67-6 397-8 | 68-0 | W 22 0 | 05-55 || 543-0) 58-7 363-6) 58-2 WwW 04-71 || 552-5| 67-4 374-1) 67-6 | WwW 23 0 08-99 | 538-6| 58-5 356-9 | 58-3 H 09-17 || 556-7 | 66-7 287-3) 66-8 | W] 18 0 O 12-60 | 541-7) 58-6 362-2| 58-9 WwW LO 14-33 | 531-5| 59-0 365-3 | 59-7 H 25 01-68 || 550-4} 63-7 286-0 | 62-0 H 2 0) 12-75 | 544-1| 59-6 360-5 | 60-5 W 07-81 || 515-0} 62-7 343-0| 62-0 H 4 0 08-77 | 544-4) 61-1 370-9 | 62-0 H 13-44 | 533-6| 62-0 326-5) 61-5 | W 6 0),| 05-42 || 549-4} 62-0 374-8 | 62-7 WwW 16-65 || 554-4 | 61-9 341-1| 61-8 || H 7 O 05-72 || 553-1| 62.1 365-8 | 62-7 WwW 14-91 || 537-1| 62-0 342-6 | 62-5 | W 8 0 | 25 05-29) 555-7} 62-0 363-0} 62-3 Ww 12-82 || 534-1} 62-6 372-0} 63-2 | H 10 0 || 24 59-61 || 557-2) 61-3 359-7 | 61-0 WwW 11-91 || 546-5) 63-1 413-3} 63-9 WwW 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 04-76 || 558-1] 66-2 || 402-3) 67-3 || W 20 0 01-68 || 549-1] 55-8 377-7 | 55-0 H 02-82 || 554-1] 66-8 406-3| 67-7 | W 22 0 04:56 |) 537-0) 55-1 382-2] 54-7 WwW 02-33 || 550-6| 67-2 402-3) 67-8 W 23 0 07-67 || 538-7 | 55-0 373-6} 55-0 H 02-13 || 557-6| 67-2 355-4| 67-5 | WT 19 O O 10-47 || 543-3} 55-3 365-6| 55-6 WwW 1 0 14-20 || 542-7} 55-8 373-3 | 56-2 H 25 07-52 || 535-9| 63-7 314-5 | 63-0 | H 2 0 12-85 || 547-2} 56-3 378-2) 57-1 WwW 08-11 |) 540-3} 62-7 334-3 | 62-0 H 4 0 11-41 || 559-9} 57-2 389-0 | 58-0 H 14-07 || 507-3) 62-2 368-6 | 61-7 | WwW 6 O | 25 11-72|) 557-1) 57-8 422.2) 58-4 Ww 12-98 || 528-7| 62-0 360-4 | 62-0 WwW 7 ot 24 54:41) 551-0) 57-9 477-7| 58-4 WwW 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 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 12-75 || 529-3] 63-6 365-6} 64-8 | W 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 04-55 || 556-4| 67-2 370-4] 68-3 W 20 0 02-79 || 546-1) 56-1 353-5 | 56-0 H 03-02 || 554-0| 67-8 371-1] 68-5 WwW 22 0 04-44 || 540-5) 55-9 355-0 | 56-0 WwW 03-95 || 553-8| 68-0 373-8 | 68-6 WwW 23 0 07-40 |} 540-7 | 56-0 349-1] 56-2 H 00-99 || 546-0| 67-7 358-4 | 67-9 Wi2l1 0 0 09-39 || 538-7] 56-4 350-4 | 57-0 WwW 1 0 13:05 || 545-7) 57-0 351-6] 57-8 H 25 02-08 || 543-5| 63-3 369-8 | 62-5 H 2 0 12-15 || 544-5] 57-6 353-1] 58-6 WwW 01-34 || 537-3 | 62-2 379-7 | 61-0 H 4 0 09:35 || 558-9| 58-9 348-8] 60-0 H 03-57 || 529-7} 61-3 374-5 | 60-5 Ww 6 0 08-46 |) 564-8} 60-0 343-2| 60-5 WwW 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 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 11-48 || 544-41 61-3 366-9 | 61-7 H 10 Ot 25 02-32" 551-1! 60-0 376-8! 60-2 WwW 313 ’ DECLINATION. Magnet untouched, April 144, 1846—May 1847. Birizar. Observed 2™ after the Declination, s=0-000135. ‘MAG. AND MET. ozs. 1846. BALANCE. Observed 3™ after the Declination, s=0-000010. {+ Extra Observations made, Initial. — MEMASMR Ss MESS RS ees 314 Darty OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 21—OcToBER 1, 1846. Gottingen BIFILAR. BALANCE. * | Gottingen BIFILAR. BALANCE. * Mean Time |) DEcLINA- ¢ 2] Mean Time |} Decuina- 2 of Declina- TION. Cor- |Thermo-| Cor- |Thermo-| 2°¢ | of Declina- TION. Cor- |Thermo-| Cor- |Thermo-|) % tion Obs. rected. | meter. | rected. | meter. || 5] tion Obs. rected. | meter. || rected. | meter. || & Gd. ah om. it ec “ Se. Div. ©. || Mie. Div. e ds, eit amo. o “ Se. Div. 2 Mic. Div. 21 18 0 | 24 55-12]| 518-7] 56-6 119-4} 55-6 Wi] 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 22605 14-10 || 472-3 | 54-0 298-4 | 53-2 H 6 0 06-19 |) 553-9) 57-7 364-9) 58-2 23\) OF) 18-37 || 487-7} 53-8 395-7 | 53-2 H ie 21) 04-89 || 556-9 | 58-0 358-1) 58-6 22 0 Of| 15-47 || 532-0] 53-8 || 546-7} 53-2 H 8 0 05-79 || 556-8 | 58-2 360-6 | 58-8 1 Of} 15-41 || 591-2} 53-9 664-6 | 54-2 H 10 0O 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 0 || 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 0 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 23 0 06-43 | 535-0} 53-0 348-8| 52:3 | 10 Of] 24 47-59|| 362-2) 57-5 ||—21-6| 58-5 Wi 28 0 O 07-58 || 533-5 | 52-8 || 338-3] 52-5 K 1 0 09-87 || 539-6 | 52-8 340-7 | 52-7 18 0 || 25 18-47||} 540-6} 56-4 210-4 | 57-0 H 2.0 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 WwW 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 0 0 08-65 || 532-7 | 56-7 304-3 | 57-3 W 8 0O || 26 00-94} 547-0) 53-3 358-8 | 53-7 || ie ai) 09-29 || 531-6| 56-8 306-3 | 57-4 H 10 O 02-01 | 547-1) 53-3 352-6| 53-7 2 0 09-33 || 534-2] 57-1 310-1) 57-9 WwW 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 6 <0 05-65 || 550-1| 58-4 316-5 | 59-3 W 20 0 01-01 || 549-8 | 53-0 344-3 | 53-1 7 O 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 23°. 0 04-39 || 534-3) 52-8 335-9 | 53-0 10 0 || 25 04-82 || 544-9) 58-7 || 380-2) 59-1 Wi29 0 0 06-63 || 539-8 | 52.7 326-1| 52-8 0 08-21 || 544-4| 52-7 320-4 | 52.7 18 30 || 24 59-17|| 543-4] 56-6 317-2| 56-6 | W 2 0 09-15 || 548-1 | 52-6 325-7) 52-7 20 O || 25 02-26]} 538-9) 56-3 329-6 | 56-3 WwW 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 6 0 04:34 || 554-3 | 52-6 344.5 | 52-7 23 0 || 08-52 || 527-8] 56-0 || 328-6] 56-3 || W 7.0 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 a} 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 0 || 25 01-75 || 553-1} 52-1 341-7] 52-3 | 6 0 05-32 || 553-6] 59-7 338-4] 60-7 uel 20 O 00-98 || 547-1} 52-0 351-3 | 52-2 7 O || 25 05-22 |) 553-2} 60-0 || 364-7! 60-8 W 22 0 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 0 || 25 (00-40 || 548-0} 60-1 360-5 | 60-5 H}|30 0 0 08-68 || 542-4) 52-6 328-3| 53-5 | tL “6 08-88 || 541-0} 53-1 331-3| 54-2 18 0 25 00-98 || 544-4) 58-9 344-3 | 59-0 WwW Dian'@) 09-49 || 549-7| 54-0 334-4! 55-3 20 0 00-98 || 540-6} 58-6 347-6 | 58-8 W 4 0 06-32 || 549-9 | 55-6 332-7| 56-9 22 0 | 02-45 || 534-6| 58-5 341-9} 58-7 H 6 0 04-59 |) 550-9 | 57-0 341-9| 58-2 23 0 || 04-91 || 533-8} 58-6 || 341-2) 59-0 W i (8) 03-77 || 556-4) 57-6 340-1} 58-5 25 0 0} 09-35 || 533-3) 58-8 || 351-3) 59-6 H 8 0 00-17 |, 552-5 | 57-7 344-3 | 58-7 L. Onh 09-56 || 541-7| 59-4 || 333-7| 60-3 || H 10 O || 25 01-95|| 546-2} 57-5 351-3} 58-2 2 0} 11-72 || 541-3} 60-0 329-6) 61-2 H 4 0 10-16 || 545-5] 61-3 341-2| 62.4 W 18 0 || 24 59-56 }| 550-1} 55-5 324-3) 55-5 6.9 i 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 0} 08-01 || 558-1} 62-2 || 363-7| 63-0 || H 22.0 O1-18 |) 534-5 | 54-8 320-4| 55-2 8 0| 03-50 || 553-5] 62-2 369:7| 62:8 || H 23 0 06-93 || 530-4] 54-9 321-4) 55-4 10 0 | 03-70 || 549-5} 61-8 || 357-6) 62:3 || H YO. Os) 07-79 || 534-3 | 55-0 322-7 | 55-7 | | 1 0 08-34 || 540-5| 55-2 |) 329-5| 56-0 18 0 i 25 01-68 |) 541-3] 58-7 334-7 | 58-2 || W 2.0 12-15 || 554-8) 55-7 |) 340-7| 56-7 20 0} 05-27 |) 537-3| 57-9 || 349-1] 57-0 | W 4 0 08-29 || 555-8 | 57-2 365-7 | 58-3 22.6 09-66 || 522-.4| 57-1 359-7| 56-6 || H 6 0 || 25 05-53) 560-4) 58-6 || 346-2) 59-7 23 0.) 07-63 || 532-5| 56-8 356-8 | 56:3 | WwW 7 0 |) 24 59-73 || 557-1) 59-0 | 390-9] 59-7 126° 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 O 10-50 || 532-7! 56-5 371-0) 56-7 | H 10 0 |! 25 03-85!) 549-8] 58.4 |! 344-7] 58-5 DECLINATION. Magnet untouched, April 144, 1846—May 1847. Biricar. Observed 2™ after the Declination, k=0-000135. BaLANcE. Observed 3™ after the Declination, s=0'000010. t+ Extra Observations made. Gottingen Mean Time of Declina- tion Obs. | ocoocooococecoso cococeocoocoeco coococo ecoocoocoosooocoE ceoocococornooso DaAILy OBSERVATIONS OF MAGNETOMETERS, OcTOBER 1—12, 1846. DECLINA- TION. 25 02-15 02-39 03-43 07-37 11-30 13-25 16-15 11-68 02-01 48-30 57-24 53-52 03-45 09-08 10-83 12-25 11-74 12-31 11-86 09.22 07-13 03-77 05-99 04-64 03-47 03-50 02-79 04-95 07-84 08-92 10-77 07-02 05-65 04-44 03:82 03-60 02-82 02-13 04-68 06-50 09-47 11-84 11-91 07-92 03-81 58-65 02-35 55-49 08-34 02-94 06-37 07-29 08-86 BIFILaR. BALANCE. Cor- |Thermo- rected. | meter. Cor- rected. 09-82 Se. Div. - 546-9 | 53-9 539-7 | 52-7 535-2} 51-8 526-1} 51-6 535-9] 51-6 547-8 | 51-9 541-6 | 52-7 551-1 | 54-5 535-6 | 55-8 555-7 536-9 539-7 538-8 540-4 532-2 533-6 541-4 540-5 545-0 597-4 565-7 552-0 558-0 558-0 552-5 546-6 540-6 536-7 538-6 Mic. Diy. 333-9 335-2 336-4 330-7 337-4 330-3 345-7 353-6 401-9 390-4 377-1 258-3 197-9 275-7 306-1 313-0 315-7 321-5 327-9 327-8 315-4 350-8 340-0 331-5 339-2 342-3 348-4 347-7 342-0 334-1 336-1 368-7 343-5 334-7 327-7 322-3 321-7 322.2 326-2 324-9 324.9 329-2 335-1 365-0 371-8 365-6 357-3 329.4 282-0 309-0 326-4 332-2 336-3 342-0 4 | Gottingen > =| Mean Time Thermo-| 2°g} of Declina- meter. || S'~ | tion Obs. e a h m 52-8 Ww «422 0 51-5 WwW 4 0 50-7 H 6 0 51-0 | W i. OF 51-5 || H 8 OF 52-3 H 10 Of 53:7 H 55-7 | W 18 Of;| 56-8 H 20 O H 22 0 H 23 0 H S O10 1 0 WwW 20 07; WwW 4 Of ig! 6 Ot W 7 OF H 8 Ot H 10 0 H WwW 18 0 H 20 0 H 22 0 H Bano H 9 0 0 1 0 WwW 270 W 450 H 6 0 W 7 0 H 8 0 Ww 10 0 een w] is. ot H 20 0 H 22.0 H 233 H|10 0 0 1 0 WwW 2 0 WwW 4 0 H 6 0 WwW 7 0 H 8 0 H 10 0 H Wyij11i18 0 H 20 0 H 22.0 H 23 0 H{f12 0 0 1. 0 W 2 0 WwW 4 0 H 6 0 WwW “110 H 8 0 H 10 0 BIFILAR. BALANCE, DECLINA- TION. Cor- |Thermo-|) Cor- |Thermo- rected. | meter. || rected. | meter. 5 “A Se. Div. S ‘Mie. Div. ° 25 09-15 || 545-3) 54-3 327-6 | 55-0 25 10-67 | 559-6 5-1 || 389-9] 55-8 25 04-42 || 555-0} 55-5 432-5 | 56-0 24 53-58 || 549-8| 55-5 443-7 | 55-8 24 56-70|| 525-8) 55-4 || 253-7) 55-7 24 55-53 || 524-0] 55-2 || 311-3] 55-7 24 50-08 || 558-4 | 52-7 |-218-6| 52.3 25 06-32|| 506-0} 52-2 |4+189-8| 52-1 06-56 || 533-7| 51-8 295-9 | 51-7 09-62 || 537-4) 51-8 331-3 | 51-8 13-29 || 540-8| 51-8 342-6 | 52-2 21-39 || 500-9| 52-0 440-4) 52-6 20-42 |) 565-1} 52-5 516-4 | 53-2 25 14-71 || 610-1} 53-4 666-6 | 54-5 24 51-49 || 546-0} 54-0 544-4 | 55-0 25 02-01 |) 536-9] 54-1 472-6 | 55-0 06-21 || 532-1} 54-1 429-2! 55-0 05-18 | 538-1] 54-0 344-1} 54-7 25 07-54 || 537-0} 52-4 298-5 | 52-3 06-36 || 534-7 | 52-0 327-0] 52-1 04-41 | 535-6] 51-8 349-3 | 52-0 06-93 | 527-9} 51-9 350-2} 52-2 06-39 || 515-3 | 51-9 364-8 | 52-3 06-06 || 534-2) 52.0 377-4 | 52-5 08-63 |) 536-4 | 52-1 368-1} 52-5 07-49 || 550-6} 52-2 388-1] 52-6 25 04-07 || 550-5| 52-4 399-9 | 53-2 24 57-04 || 549-9} 52-7 395-2| 53-7 25 10-67 || 545-5) 53-0 382-7| 54-0 25 01-75 || 550-1) 53-7 329-5 | 54-7 25 04-64 || 558-5| 54.7 95-9 | 55-4 11-98 || 534-5] 54-9 189-0} 55-7 11-66 || 518-4] 55-0 301-0} 55-8 11-03 || 516-7] 55-3 335-4| 56-2 13-46 || 514-7} 55-7 334-4] 55-6 16-79 || 523-6} 56-0 364-8 | 57-0 14-26 || 528-1] 56-3 || 428-2) 57-2 15-27 || 551-1) 56-9 578-7 | 57-8 04-91 || 544-1) 57-4 432-1} 58-7 05-49 | 547-0| 57-6 413-6) 58-3 02-39 || 548-1| 57-7 418-4} 58-2 04-68 || 549-0) 57-5 366-3 | 58-0 25 02-89 || 551-5) 54-0 297-4) 54-4 07-13 |) 543-8} 53-9 334-6 | 54-3 13-12|| 519-8] 53-8 326-9 | 54-2 08-46 || 531-5| 53-9 347-2) 54:3 13-29 || 539-9] 53-8 348-7 | 54-4 15-20 || 535-3| 54-0 363-2 | 54-7 09-29 |) 544-6| 54-0 386-7 | 54-7 08-01 || 540-0} 54-1 380-2) 54-6 04-37 || 553-0} 54-0 361-5 | 54-0 25 03-63 |) 547-4) 53-7 || 375-4] 53-7 24 56-77 || 548-5 | 53-5 381-2] 53-3 25 02-69! 550-9| 53-0 356-3 | 52-9 His SHES nS SSeS Ss Pees bt i 315 Tnitial. Obser au | = = pos rot od ft tod bt BALANCE. DECLINATION. Magnet untouched, April 144, 1846—May 1847. Observed 2™ after the Declination, <=0-000135. Observed 3™ after the Declination, s=0:000010. } Extra Observations made. 316 DarILy OBSERVATIONS OF MAGNETOMETERS, OcTOBER 12—22, 1846. Gottingen | Birivar. Banance, || _.| Géttingen BIFILaR. Banance. |\% . Mean Time | DeEciina- j Pe | Mean-Time»|| Decnina- | —_|______,. aa o's of Declina- TION. Cor- |Thermo-)| Cor- |Thermo- 2 5 | of Declina- Trion. | Cor- |Thermo-|) Cor- |Thermo- ge ; tion Obs. rected. | meter. | rected.| meter. ||5'~ | tion Obs. | rected. | meter. || rected. | meter. 5 * a hk. Mm. Ss e Se. Div. 4 | Mie. Div. ec [PR a ee at | (ns t | Se. Div. z Mie. Div. P Dae 12 18 0O | 25 03-11 |) 551-4} 50-1 349-0) 49-1 WI17 2 O| 25 09-54)| 544-9] 52.2 314-4] 53-0 H 20 O | 02-75 || 547-2] 49-3 | 360-5 | 48:3 WwW 4 0 07-29 | 552-3 | 52-7 306-7 | 53-7 WwW 22)» 05} 04-68 || 538-5 | 48-8 | 363-8) 48-0 H 6 0 04-71 | 557-4| 53-1 304-7| 54-0 | H 23) @ 09-22 || 537-8} 48-7 || 362-8} 48-2 Ww 70 04-07 || 559-6] 53-2 304.2} 54.2 H i 707.0 07-60 || 535-9| 48-7 || 362-7| 48.4 H 8 0] 04-34 || 557-7) 53-2 304-6 | 54-2 H 1) ay 08-65 || 537-6] 48-6 || 359-8| 48-7 H MOPED) 00-06 559-1] 53-5 305-8 | 54-2 H 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 W118 18 0 || 25 02-62) 555-1] 52-7 302-4 | 52-7 H 6 0 || 25 04-64) 548-54 49-0 || 371-3] 49-2 H 20 0 | 02-19) 551-1} 52-5 311-9| 52-7 H 7 O || 24 53-95 || 565-3 | 49-0 357-6| 49.2 H 228 07] 01-72) 542-3) 52-4 327-5 | 52-6 Ww 8 0 25 02-66 || 547-2} 48-8 358-7 | 49-0 H 23 0 | 04-82' 539-7| 52-5 315-8 | 52-9 H 10 0O | 02-99 || 545-1| 48-5 302-1) 48-5 H ) 19 90 0 08-53 || 539-8| 52-7 314-2} 53-3 WwW ] 1 O| 09-08 | 545-4] 53-0 | 315-8) 53-5 H 18 0 || 25 02-22)| 553-1} 46-7 326-1) 46-5 WwW 2 0| 08-39 || 550-7 | 53-0 322-1 | 53-7 W 20 0} 04-24 || 552-9) 46-3 330-3) 46-1 Ww 4 0} 07-00 || 560-3} 53-4 324-5 | 54-2 H 22) O 04-48 || 542-3) 45-8 345-0) 45-7 H ‘6510 06-70 || 549-9| 53-6 362-2) 54:3 WwW 23° 0 || 06-73 || 532-9 | 45-7 347-2) 45-6 W ih i) 10-45 | 551-6} 53-6 385-2 | 54-3 W 14 0 O| 10-00 || 535-4) 45-5 340-9 | 45-5 H 8 0 05-67 || 556-9} 53-6 365-3 | 54-1 WwW a | 10-56 || 541-4) 45-4 337-4| 45-5 H 105-0 03-48 | 553-1| 53-4 345-3 | 53-7 W 2 OD 10-03 | 544-3) 45-4 335-5 | 45-5 H q 4 0} 05-99 || 549-8} 45.4 345-4 | 45-8 WwW 18 10 || 25 01-09) 554-8) 52-3 289-9} 52-5 H 6 0} 03-16 |) 551-1} 45-7 352-1) 46-7 H 20 0} 03-88 | 551-5] 52-1 317-2| 52-2 H 7 0] 03-02) 553-6) 45-9 347-5 | 46-5 H 22 0 | 04-96 || 539-4} 51-8 320-9} 51-8 WwW 8 0] 03-35 | 552-6) 45-9 347-2| 46-6 H 23 0 | 04-34 | 540-3} 51-8 323-2] 52-0 H 10 O | 04-02 | 553-3 | 46-2 348-8 | 46-7 H {20 0 0} 08-28 | 542-7) 51-7 322-0] 52-2 W | | 1. 0} 09-22 | 541-2] 52-1 315-2} 52-7 H 18 0 | 25 02-97) 555-5| 46-6 329-8) 47-0 WwW 2 0] 11-49 | 549-2) 52-4 317-6} 53-2 W 20 O|} 02-39 | 552-4| 46-7 335-9 | 47-2 Ww 4 0] 13-29 | 550-1) 53-2 326-4| 54-4 H 22 © OF|| 03-63) 545-5| 46-9 338-2} 47-5 H 6 0] 06-30 | 553-1} 54-1 358-1 | 55-0 WwW 23 0 06-09 | 543-8) 47-1 334-2 | 48-0 W ve 10a 06-16 | 557-6] 54-3 331-5] 55-2 Ww i 301-0) 06-56 | 542-1) 47-6 326-4) 48-5 H 8 0} 00-62 | 554-5] 54-4 335-7 | 55-2 WwW 1S e | 08-68 | 546-1| 48-0 322.3 | 49-2 H 10 0| 04-10 | 552-8 | 54-3 322-8} 54-8 WwW 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 WwW 18 0 || 25 02-53 ]| 552-4) 51-7 319-9 | 51-3 H 6 0] 04-31 | 553-8) 50-6 316-7 | 51-5 13 20 0 || 02-40 || 550-9} 51-0 326-6 | 50-5 H (jet!) 02-43) 556-0| 50-7 319-2) 51-7 H 22 0 | 02-26 | 541-0} 50-6 344-0} 50-1 WwW 8 0 03-09 | 558-9} 50-8 310-8 | 51-7 H 23° 0 04-89 || 540-5] 50-3 338-9 | 49.9 H 10 0O| 04-07 |) 555-5 | 50-8 314-9| 51-5 Ey } Se 100 -0)) 07-24 || 534.6] 50-2 345-1} 50-0 Ww HT 1 0 | 12-38 | 546-5] 50-2 334-4 | 50-4 H 18 15 | 25 02-94|| 559-9} 49-1 262-2| 49-3 WwW 2D | 09-22 | 549-4] 50-3 324-2} 50-6 wt 20: 0 | 01-90 | 551-9} 48-8 295-4) 49-0 W 4 0 08-58 | 557-5] 50-9 329-5 | 51-6 H 22 0 || 04-68 || 537-3 | 48-4 329-0) 48-5 H 6 0 05-23 || 555-5] 51-5 327-4 | 52-0 Ww 23 0 || 08-65 || 535-6 | 48-3 329-3 | 48-6 WwW 7 0 04-05 | 553.4] 51-6 329-1} 52-1 Ww 16 0 0 | 09-57 || 540-3 | 48-4 || 324-4] 49-0 || H 8 0 03-43 | 555-2] 51-6 |} 327-4] 52-1 || W Lid 10-28 || 539-4 | 48-8 331-0) 49-5 H 10 0 02-01 | 566-2) 51-5 315-8} 51-8 Ww 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 WwW 18 0 || 25 02-87 || 546-5) 50-5 282-3] 50-5 H 6 0 03-06 | 551-6) 51-6 320-3 | 52.7 H 20 0 04-01 | 540-5) 50-2 318-6 | 50-2 H (ea!) 03-09 || 556-6 | 52-0 319-0} 53-0 H 22. 0 05-45 || 520-8} 50-0 332-6 | 50-0 Wii 8 0] 03-43 || 555-7 | 52-2 || 316-7] 53-0 H 23.0") 03-74 | 539-9| 50-0 318-5 | 50-0 H 10 0 | 02-42) 550-1) 52-3 323-4) 53-0 H | 22 0 0} 10-90 | 545-7) 50-0 328-2 | 50-0 WwW | | Ls EON 12-25 |) 545-4| 50-0 || 338-1] 50-5 || H | 18 0 || 25 02-50|) 555-8] 51-6 302-3 | 52-0 W 2°10 12-72 || 545-8] 50-1 355-6] 50-6 | W | 20 0 02-87 | 558-6} 51-4 299-8 | 51-8 WwW 4 0 || 25 11-03 || 552-7] 50-4 388-0} 50-8 H 221.0 | 02-05 || 542-9| 51-3 || 313-6} 51-7 H 6 Of] 24 47-66)) 537-6) 50-5 395-6} 51-0 Ww 23° «0 04-14 |) 538-2] 51-4 316-5 | 52-1 W 7 O || 24 53-00}' 534.4} 50-6 375-7 | 51-2 WG Mf 10 © .00) 07-07 | 537-4| 51-6 312-9 | 52-2 H 8 0 || 25 02-84 || 541-7} 50-6 360-6| 51-2 || W 1 O01 09-19 | 541-0! 51-8 312-7 | 52-6 H 10 0 03-70 |) 555-6) 50-5 372-1| 50-7 || W DECLINATION. Magnet untouched, April 144—May 1847. 4 BIFILAR. Observed 2™ after the Declination, k=0-000135. BaLancr. Observed 3™ after the Declination, s—0:000010. th + Extra Observations made. | Gottingen | Mean Time | of Declina- | tion Obs. Pa on. | 22 18 eoeooooocoeocoeccoco eoeooonwnooowococoeo cooooocococe oooooo Scooooscoosoooo# DECLINA- TION. 25 25 24 25 25 25 25 BIFILAR. Thermo- meter. Cor- rected. Se. Diy. ® 550-7 | 48-7 544-7 | 48-2 527-3 | 47-9 533-1 | 47-7 538-0 | 47-8 544-7 | 47-8 546-3 | 48-0 554-7 | 48-4 558-2} 48-9 555-1 | 49-2 557-1 | 49-0 555-0 | 48-7 548-7 549-1 541-0 540-4 543-5 545-1 548-7 551-8 558-3 555-9 566-2 552-7 46-7 46-2 46-0 46-0 46-0 46-2 46-4 47-0 47-6 47-7 47-7 47-8 553-5 550-4 545-0 544-9 544-0 540-7 548-6 556-3 551-4 558-0 559-6 553-3 46-8 46-0 45-1 44-8 44-9 45-0 45-3 46-7 48-1 48-5 48-5 48-2 553-7 551-8 538-9 537-0 44.6 43-4 42.4 42.2 540-3 548-8 545:8 551-6 553-3 559-1 560-0 550-2 42.0 42-2 42.6 44-4 46-3 46-7 46-9 47-0 553-6 553-7 547-8 543.4 46:8 46-6 46-7 46-9 541-5 544-5 47-1 47-4 BALANCE, Thermo- meter. Cor- rected. Mic. Div. 301-1 324-6 335-8 328-8 307-8 306-1 311-8 313-7 310-6 312-9 309-9 306-6 48-5 48-0 47-7 47-7 48-0 290-6 310-8 324-2 311-3 307-3 311-3 311-4 323-5 317-7 317-1 322.7 318-8 314-5 320-3 325-1 323-9 3253 322-9 315-0 321-6 321-9 318-8 315-1 317-2 321-2 323-6 334-9 328-6 320-4 315-8 318-3 323-2 317-6 307-8 306-6 298-4 298-5 296-9 308-3 302-8 292.4 48-0 296-9! 48.3 mma am Seestehaemaens aeqemaemaenantm seqeharenann 44demdgudnamn | Observer’s Initial. Gottingen Mean Time of Declina- tion Obs. no co J oooscooF iY) ww bo _ Oo oO _ oooooocoeocoococo qooooocoeococoo coooococococoso _ _ foe) _ cooocoocococoso DECLINA- TION. 09-82 07-94 05-65 00-80 04-64 01-61 03-00 03-87 04-86 07-63 08-65 08-80 09-82 08-08 04-66 03-09 00-80 02-62 04-58 01-45 02-25 03-99 10-21 12-58 13-52 06-86 05-72 04-14 03-45 01-61 25 02-69 04:05 02-72 05-69 08-56 08-46 10-43 07-87 58-42 04-34 02-15 03-63 25 06-97 03-81 03-20 04-34 08-63 12-02 12-55 07-10 03-43 02-40 25 03-72 24 54-45 DAILY OBSERVATIONS OF MAGNETOMETERS, OCTOBER 22,—NOVEMBER 2, 1846. BIFILAR. BALANCE. Cor- |Thermo-|| Cor- |Thermo- rected. | meter. |/ rected. | meter. Se. Div. a Mic. Div. e 548-1} 47-8 290-0} 48-8 552-1) 48-7 304-1 | 49-7 557-5 | 49-3 298-2} 50-1 554-4} 49-5 303-0) 50-3 560-8} 49-5 296-4| 50-2 562-7 | 49-5 298-4| 50-0 554-3 | 47-8 282-1} 48-0 549-3 | 47-4 | 298-6| 47-4 541+7| 47-0 || 308-1] 47-1 538-4| 46-8 300-6 | 47-0 541-6| 46-8 299-2) 47-1 539-9| 47-0 297-3| 47-5 551-5| 47-5 296-8 | 48-6 557-0| 49-2 299-2) 50-2 556-6} 50-5 290-1) 51-4 559-3} 50-8 287-8| 51-5 558-7| 50-8 295-1) 51-3 550-1} 50-3 302-3 | 50-4 i] 552-0| 46-9 | 274-6] 46.3 551-9| 46-1 300-5 | 45-5 547-0| 45-2 || 306-5) 44-7 539-7| 44-8 308-2| 44-5 532-0| 44-8 310-7| 44-5 536-4] 44-7 311-9} 44-7 540-2] 44-7 318-2] 45-0 549-0| 45-4 |) 325-0} 46.2 554-7 | 46-3 303-9 | 47-0 556-3 | 46-7 301-5 | 47-2 556-1] 46-9 || 298-7] 47-3 553-9 | 46-7 298-4| 47-0 554-0] 45-3 274-0| 45-6 553-1} 45-3 286-0) 45-7 547-1| 45-6 292-3| 46-1 541-6) 45-8 291-3) 46-3 539-3] 46-0 288-3] 46-8 548-3 | 46-4 287-7 | 47-2 557-1| 46-9 292-7| 47-7 549-9] 47-7 || 303-6] 48-5 554-3 | 48-1 299-9} 49-1 561-3| 48-4 291-4} 49.3 557-8 | 48-7 292-5| 49-6 558-7 | 49-1 283-0| 49-8 555-9 | 49-9 265-5| 50-0 552-4| 49-9 269-4| 49.9 542-2) 49.8 283-3 | 49:8 537-4) 49-8 287-1) 50-2 539-8 | 50-0 287-2| 50-5 536-7 | 50-3 300-1] 51-0 536-4| 50-6 322-5) 51-2 554-7 | 51-2 329-6| 51-9 549-2) 51-5 337-1) 52-0 544-6| 51-6 320-3 | 52-1 545-8| 51-6 313-6| 52-0 543-61) 51-5 238-1! 51-9 317 Observer’s Tnitial. Ssaqsmaeraerenr aeeqteraerane 4244ndngmdnr senererenerh 4daqnq | DECLINATION. Magnet untouched, April 144, 1846—May 1847. Observed 3” after the Declination, s=0:000010. “MAG. AND MET, oBs. 1846. Biriwar. Observed 2™ after the Declination, k=0-000135. BALANCE. 318 DAtiy OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 2—12, 1846. Gottingen Birinar. BALANCE. Be Gottingen Birinar. BALANCE. | re 3 Mean Time || Decuina-||_—~————, —— | 3. 3 |, Mean Time || Decuina- |-_——7-—_|_,— ] & z of Declina- TION. Cor- |Thermo-|) Cor- |Thermo-] Z°2 | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|) 2° tion Obs. rected. | meter. || rected. | meter. 5 ft tion Obs. rected. | meter, || rected, | meter. 5 ra rs gy ce 4 | 9 f Se. Div. 2 | ‘lie. Div. ) h m i ¥ || Se. Div. ° Mie. Diy. ° 218 0 || 25 04-48 |) 949-9 | 51-0 279-5| 51-4 | H 7 2 0] 25 10-18] 550-7} 49-7 301-1} 50-0 | W 20 O 05-29 || 555-0) 51-1 268-4} 51-3 ise 4 0 06:32 || 553.2} 50-3 292-8] 50-8 H : 22 0} 05-05 || 534-1] 50-9 289-2} 51-1 W 6 0 04-62 || 559-3] 51-0 299-9} 51-5 Ww q 23 0| 08-75 | 541-2} 50-8 286-3 | 51-2 H y fe 04-71 |) 557-2) 51-1 298-2) 51-6 Ww 3 OS Or 09-62 || 541-2| 51-0 283-5 | 51-5 WwW 8 Of} 25 00-74 |) 540-1} 53-2 334-9| 51-7 W | ro 11-17 | 540-2) 51-3 293-8 | 52-0 EL 10 0 || 24 46-68 || 520-6] 51-4 251-6] 51-9 WwW 2 0 13-63 || 544-0) 51-6 304-3 | 52-4 | W 7 4 0 07-04 || 555-1} 52-0 308-9 | 52-7 H 8 18 0 || 25 01-95 || 555-0} 49-5 294-0} 49-5 H 4 6 0] 04-05 || 557-2| 52-4 287-4] 53-0 | W 20 0 03-70 || 553-0| 49-0 302-9} 49-0 H = 7) 03-50 || 555-3.) 52-4 282-7 | 53-0 Ww 22:0 03-50 | 545-9} 48-6 301-6] 48-2 Ww 8 0 03-20 || 554-6 | 52-5 284-0| 53-0 AW 23 0 04:81 || 539-3} 48-2 305-2} 48-0 H a 10 0 03-20 |) 959-2) 52-6 277-5 | 53-2 Ww 0 10°90 06-84 || 538-6| 48-0 303-7| 47-7 WwW | 70 10-09 || 543-9| 47-8 298-0| 47-5 H 18 0 || 25 02-01)) 5535-0) 52.5 276-4 | 52-7 H 200) 08:72 || 543-4| 47-8 302-2) 47-6 WwW 20 0} 02-39 || 550-3) 52-1 273-7 | 52-2 H 4 0 06-09 || 552-1] 47-6 309-9 | 47-5 H 22° 0%) 03-23 || 545-8) 51-8 283-0} 52-0 Ww 6 0 03-90 || 555-9| 47-5 295-8| 47-3 Ww 23°20") 04-86 || 541-5) 51-8 289-9 | 52-2 H 7-01 03-97 || 556-0} 47-3 296-5| 47-2 WwW 20 7:0") 06-90 |) 543-1} 52-0 285:8| 52:5 | W 8 0 01-52)| 552-0] 47-1 304-5 | 46-9 Ww § 1.70 07-35 || 548-3 | 52-3 281-3) 53-1 H 10 0 01-21 || 551-0| 46-6 292-4} 46-2 WwW 2 6 06-09 || 549-9| 52-7 279-4 | 53-5 WwW : 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 H 7. 6 0} 04-58 |) 557-1| 53-9 270-1 | 54-8 WwW 20 0 01-88 || 554-6| 43-6 306-6 | 43-2 H - Figo} 03-63 || 556-1) 54-0 272-8 | 54-8 WwW 220 01-85 || 543-4} 42-9 309-4| 42:3 WwW FE 8 0 03-48 | 556-8} 54-1 273-8 | 54-9 WwW 23 0 04-31 || 542-0} 42-5 308-6 | 42-2 H ‘if 10 O 03-14 || 558-5} 54-1 275-5 | 54-9 Wyi10 0 O 08-43 || 535-7| 42-3 308-2] 42-2 W * | 1 0 08-41 || 540-9| 42.3 || 303-0| 426 | H | 18 0 | 25 02-12]) 552-9} 53-1 269-1] 53-2 || H 2 5] 05-34 | 550-8} 42-6 304-2) 43-3 Ww 1 20 0} 05-89 || 547-7| 52-7 279-8 | 52-5 H 4 0 06-06 || 557-1} 44-0 303-5 | 45-2 H 22 0} 03-81 || 546-9} 52-1 293-1} 51-8 W 6 0 04.55 || 558-9} 45-7 293-0| 46-7 Wi 23-0 | 06-32 || 540-2) 51-9 291-9] 51-7 || H 7 O 03-88 || 560-0| 46-0 289-8| 46-8 W 5.0 0} 07-08 || 541-8| 51-8 290.2] 51-8 WwW 8 0 03-70 || 559-9) 46-1 287-9) 46-7 WwW ay) 09-76 || 549-7) 51-7 287:6 | 52-0 H 10 0 02-19 || 556-8] 45-8 289-8 | 46-0 W Patek |) 09-46 || 952-9) 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 H 6.708) 04-53 || 555-0| 53-3 301-3} 54-0 Ww 20 ty 01-95 || 554-2) 41-8 299-4) 41-5 H ~ yOu} 02-99 | 556-0| 53.4 297-5 | 54-0 W 22 0 02-08 || 548-9| 41-0 309-4] 40-6 Wi 8 0 | 25 03.37 557-9| 53-4 291-6 | 53-9 W 23° 0 03-81 || 545-1] 40-7 304-2| 40-2 H 10 0} 24 59.39 || 557-8) 53-3 290-0 | 53-7 Wi]i1l 0 0 06-10 || 544-8] 40-4 307-5 | 40-3 WwW 1 Rae) 08-34 | 553-1) 41-3 305-4) 40-5 H 18 0 | 25 04-64 || 554-3) 53-3 282-9} 54-0 H 2 0 07-94 || 554-4| 40-4 306-2) 40-8 W 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 H 22) 1 OH 02-37 || 547-3) 53-2 288-8 | 53-6 WwW 6 0 05-32 || 558-5} 41-3 295-5| 42-2 | WHE 23 «0 03-35 || 543-7) 53-1 278-6 | 53-5 H (ims) 07-34 || 554-1| 41-7 302-8 | 42-5 wi 6 0 0 08-08 || 545-6) 53-1 277-3) 53-5 WwW 8 0 | 25 04-53 || 558-5) 41-9 302-7 | 42-8 WwW Lae 07-67 || 041-7} 53-2 283-2 | 53-7 H 10 0 || 24 53-64) 544-4) 42.2 309-9} 43-1 WwW 2 0 07-74|| 549-8| 53-1 282-6 | 53-8 W 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 HY] 6 0 04-22 || 558-5) 53-6 286-9 | 54-1 WwW 20 0 01-75 || 554-5} 43-0 284-3 | 43-7 H 7 200 04-95 || 560-2) 53-6 290-7 | 54-0 WwW 22 0 01-73 || 545-8} 43-2 287-6} 44.0 | WI 8 0 03-63 || 557-5 | 53-4 291-7 | 53-6 Ww 23 0 03-74 || 542-2) 43-3 286-2| 44-2 H | 10 0 03-84 || 553-4) 52.9 286-9 | 52-9 Wil2 0 O} 05-96 || 544-5) 43-4 279-5 | 44.3 wi | 1 0] 07-47 || 546-4| 43-7 || 275-5| 44.7 | HY 18 0 || 25 00-50 | 557-4! 50-7 275-6 | 50-2 H 0 08-12 || 550-2] 43-9 || 271-9] 44.8 Wt 20 0 02-22) 553-8| 50-2 286-7 | 49-7 H 4 0 06-59 || 556-1) 44-3 278-2| 45-2 H F 22 0} 01-18} 547-0 49.8 293-6 | 49.5 WwW 6 05-08 || 558-7} 44-6 276-7| 45-5 WwW 23 «0 | 03-48 | 539-9, 49.7 296-6 | 49-5 H 70 04-42 || 560-1) 44-8 275-3 | 45-7 WwW i Io i 06-50 | 540-8) 49-6 294-8 | 49-5 WwW 8 0| 03-61 | 560-0) 44-9 275-9) 45:8 Ww 1 0} 08-61 |) 544-5] 49-6 296-51 49-7 H 10 0 03-14 || 561-0! 45-1 273-4| 46-0 WwW ; DECLINATION. Magnet untouched, April 144, 1846—May 1847. Birizak. Observed 2™ after the Declination, =0-000138. BALANCE. Observed 3™ after the Declination, s=0-000010. + Extra Observations made. | Gottingen | Mean Time ooocoocococsoso ecoooscocooscoo Se _ cocoow DECLINA- TION. 25 02-17 01-85 01-68 03-14 05-80 07-81 08-70 07-00 06-09 06-39 05-96 59-26 01-92 02-67 05-25 06-29 07-65 08-95 08-11 06-06 03-90 03-67 03-43 58-25 02-62 01-34 01-41 03-48 06-12 07-38 07-29 06-23 04-41 03-43 03-02 00-33 59-26 01-68 02.32 03-52 05-92 09-79 10-09 08-31 13-30 05-79 08-11 00-74 06:26 04-42 06-76 08-88 06-56 09-19 BIFILAR. BALANCE. Thermo- meter. Cor- rected. Thermo- meter. Cor- rected. Se. Div. ye 557-6 | 45-4 558-5 | 45-4 550-6 | 45-6 546-9 | 45-7 545-2 | 45-7 549-2 | 45-7 554-6 557-6 562-9 559-2 558-5 558-8 557-7 557-2 546-0 537-0 547-7 550-4 551-0 553-3 556-5 557-2 554-6 551-6 557-1 557-2 550-0 547-2 549-6 551-3 552-2 555-9 557-3 558-5 559-7 556-8 563-8 561-2 553-1 550-6 548-2 553-7 553-5 557-2 564-3 652-7 671-0 539-5 547-8 549-0 534-6 518-8 538-1 542-8 Mie. Diy. 271-6 271-3 276-6 273-3 268-3 269-6 268-1 272-2 268-1 270-4 279-3 291-1 252-3 265-6 270-3 275-6 273-4 275-3 279-2 284-5 278-4 279-1 280-6 290-5 282-9 285-2 288-0 282-1 283-9 284-5 287-1 278-3 273-3 271-8 270-8 280-2 253-5 258-0 269-7 270-0 270-5 270-7 277-4 273-0 287°3 823-4 796-8 466-0 252-7 252-9 283-6 305-4 298-5 298-8 Observer’s Initial. dagangaagann mnmemgh dein | Minti hinds modded gpettdemesmss Gottingen Mean Time of Declina- tion Obs. a. 18 coooocos 19 (ah a Nl ET a) 20 ceoooooccococoe 21 oooococooceco 22 coooocooocococqcoe DECLINA- TION. ° , 25 08-16 03-35 02-69 25 02-89 03-30 05-15 06-04 06-91 06-17 04-05 03-48 05-25 01-81 02-45 02-89 03-74 08-99 13-63 07-76 06-43 07-96 03-04 25 24 02-84 01-75 00-57 05-35 05-05 06-06 04-98 07-34 04-04 04-91 03-35 00-18 25 02-08 02-39 01-90 04-31 05-11 06-26 06-16 04-71 04-01 03-38 03-57 02-46 09-33 | 04-73 || 08-18 || 03-04 |) 04-48 || 02-75 | 04-78 || 59-24 || 319 BIFILAR. BALANCE. = = eS Cor- |Thermo-| Cor- |Thermo-|| 3 3 rected. | meter. || rected. | meter. || 5 ~ Se. Div. a Mic. Div. e | 545-2] 48-6 300-9 | 49-7 H 536-3 | 49-2 331-4] 50-1 || W 550-9| 49-6 318-0] 50-2 H 548-6} 49.6 312-5 | 50-5 H 549-0} 49-7 311-1) 50-5 H 549-5 | 49-7 311-2] 50-4 H 549-4} 48-5 307-5 | 48-5 H 546-7 | 48-0 307-8 | 48-3 H 543-2| 47-9 || 318-0] 48-0 WwW 539-1) 47-8 320-3] 48-0 WwW 540-0 | 47-7 321-7] 48-1 Ww 546-7 | 47-8 320-6] 48-5 H 548-9 | 48-1 319-0 | 49-0 WwW 552-3) 49-0 309-5 | 49-7 H 557-0 | 49-3 305-6| 49-8 WwW 558-2) 49-4 300-2} 49-8 Ww 560-1| 49-2 299-1| 49.7 WwW 552-7 | 49-0 316-0 | 49-5 Ww 555-2 | 48-7 299-2) 49-0 Ww 552-9| 48-6 297-4| 49-0 Ww 548-0} 48-5 300-2| 49-0 H 548-2) 48-6 303-0] 49-1 WwW 549-2] 48-6 299-7} 49-0 H 547-5 | 48-6 304-0] 49-0 isl 555-6 | 48-7 304-3 | 49-2 H 563-7} 49-0 318-8] 49-6 WwW 559-5 | 49-0 326-6| 49-6 WwW 558-0] 49-1 334-4] 49-6 WwW 551-9} 49-0 336-8] 49-5 WwW 567-6| 49-1 294-2| 49-6 WwW 551-2| 48-3 291-9| 48-6 WwW 552-4) 48-1 298-8| 48-1 W 548-4| 47-7 297-3] 47-4 H 546-6| 47-6 293-8) 47-5 WwW 547-6| 47-5 291-5| 47-7 H 549-3 | 47-6 300-6| 48-2 H 547-7 | 47-8 302-7| 48-5 H 545-0| 48-1 316-0| 48-7 WwW 559-3 | 48-2 309-9 | 48-7 H §55-2| 48-0 312-0] 48-7 H 555-2] 48-0 308-9 | 48-5 H 559-9| 47-8 || 292-8} 48-0 H 553-4| 42-8 289-6| 42-7 Ww 556-3 | 42.4 285-2) 42-2 WwW 550-2) 42-0 285-6 | 41-7 H 546-8| 41-7 271-2} 41-6 Ww 544-9} 41-6 269-5} 41-7 H 550-6| 41-5 273:2| 41-7 H 554-5 | 41-7 279-7| 42-0 H 555-9 | 41-9 285-1| 42-4 WwW 558-4 | 42-0 287-3 | 43-0 H 560-0| 42-3 282-2] 43.2 H 557-6 | 42-6 283-2) 43-7 H 556-3 | 42-8 279-4| 43-7 || H Observed 2™ after the Declination, =0:000135. BaLaNce. DECLINATION. Magnet untouched, April 144, 1846—May 1847. Observed 3™ after the Declination, s=0-000010. + Extra Observations made. 320 DartLy OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 23—DECEMBER 3, 1846. Observer's Tnitial. |HintitSnndstie sd Hittites Bhs Ssesesiseeee pia it | Gottingen | BIFILaR. | BALANCE. % a] Gottingen BIFILAR. | BALANCE. Mean Time | DrcLina- z=] Mean Time || Deciina- of Declina- TION. Cor- |Thermo-|} Cor- /Thermo-|| 2° | of Declina- TION. Cor- |Thermo- Cor- |Thermo- tion Obs. rected. | meter. || rected. | meter. ||5'~} tion Obs. rected. | meter. || rected. | meter, dice hss Gnsill) oles 28 Se. Div. 5 Mic. Div. G ad. ob. m. pret Se. Div. a Mic. Div.| ° 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 0 | 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 0 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 OO} 05-58 || 548-2] 45-2 273-7 | 46-2 H 8 0 || 24 57-78|| 545-2| 37-2 304-8 | 37-3 LO | 07-64 | 550-1) 45-7 268-1 | 47-0 H 10 0 || 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 0 || 25 02-59)| 559-9} 33.8 246-1) 34-0 6 0] 03-38 || 560-0| 48-0 285-1 | 49-0 WwW 20 O 07-67 || 555-4! 33-7 247-3 | 34-0 Toi Qh 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 230 04-88 || 548-5! 33-7 274-4| 34-2 10 0 00-77 560-2 | 47-6 274-3 | 48-0 H | 30 0 0 04-34 || 539-0) 33-9 276-9| 34.6 I) 08-48 || 546-8 | 34-2 287-6) 35-0 18 0 || 25 02-55 |) 557-8| 45-6 292.5 | 45.6 WwW 2 0 07-62 | 556-0| 34-6 288-2| 35.4 20 0 02-19 | 556-7 | 45-2 299-4) 45.3 WwW 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 23.0 04-28 || 546-5! 44-9 271-4} 45-1 W a) 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 Lee 06-46 | 549-6 | 44-7 274-8 | 45-2 H 10 0 01-75 || 554-1) 35-0 284-3) 35-5 2 0 06-83 || 553-9| 44-8 277-7 | 45-2 H 4 0 05-18 || 558-6 | 44-9 279-5 | 45-4 WwW 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 Tae 03-63 | 558-2) 44-9 284-2) 45-5 H 22 0 03-02 | 552-4| 34-7 267-5 | 35-5 8 0 03-27 | 558-0| 45-0 285-1 | 45-5 H 23 40 03-38 || 550-0) 35-0 269-9| 35-8 10 O 62-03 || 559-5 | 45-0 278-1| 45-6 H ft 20\'9 05-29 || 554-1| 35-3 275-1 | 36-3 eo) 06-39 || 556-3 | 35-8 274-1 | 37-0 18 0 || 25 01-95 || 559-7 45-2 271-1| 45-7 WwW 2 0 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 22 0 01-98 | 548-8 | 45-0 269-5 | 45-5 H 6 O |) 25 01-95} 562-1] 38-7 279-9 40-0 23 0 04-58 || 559-5 | 45-0 262-2) 45-5 W 7 O || 24 53-04)| 576-4) 38-8 268-9 | 40-2 26 0 0 06-12 | 560-4| 45-0 258-3 | 45-5 H 8 0 || 25 01-51]! 550-0) 38-9 270-1, 40-0 Lo 06-30 561-9 | 45-0 255-3 | 45-6 WwW 10 0 02-01 || 558-3 | 38-7 276-4) 40-0 2 0 06-83 | 566-5 | 45-1 262-3 | 45-7 H 4 of, 08-25 || 548-1 | 45-2 470-4 | 45-9 WwW 18 0 || 25 05-15} 553-8} 36-1 266-3 | 35-8 6 Ot) 11-77 || 596-2} 45-6 557-1 | 46-5 H 20 0 03-81 | 556-3} 35-2 260-0 | 34-8 Ts Ot 25 10-09 || 597-4| 45-8 832-7 | 46-2 H 22 0i| 03-47 || 546-8| 34-4 271-4| 33-7 8 0 || 24 54.55 |) 535-6] 46-0 460-9 | 46-5 H 23. 0 06-01 | 532-8) 34-0 278-1) 33-3 10 Ot 24 45-81 || 575-3 | 46-0 131-0 | 46-7 H 2 108-0 06-83 || 546-5 | 33-7 274-1) 33-0 50 08-05 | 550-1) 33-4 280-5 | 33-2 18 0 | 25 03-37 || 553-7 | 45-6 273-2) 45-9 WwW 20) 09-49 || 547-3) 33-3 276-3) 33-5 20 Ot | 10-90 || 538-3 | 45-3 279-6 | 45-7 Ww za 05-42 |) 556-9} 33-6 283-7 | 34-0 22° 0 | 08-18 || 553-2 | 45-2 303-5 | 45-5 H 6 0 02-66 || 558-2| 33-7 281-4| 34-2 23 0 | 05-27 || 547-4) 45-2 305-0) 45-5 WwW RO 03-57 || 556-2| 33-7 278-7 | 34-0 27 0 0 08-99 || 549-2} 45-1 311-7| 45-4 H 8 0 01-41 || 573-7| 33-4 277-6 | 33-7 Lb. 00] 10-00 || 539-2) 45-1 324-1 | 45-3 H 10 0 02-01 || 553-1| 32-8 275-2 | 32-5 21031 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 0 || 25 02-48 |) 556-7] 29-3 266-9 | 28-5 6 0 || 25 02-94 || 550-6 | 44-3 333-1] 44.4 H 20 0 02-79 | 555-3} 28-6 265-9 | 27-8 7 0 || 24 59-19|| 542-0| 44-0 335-8 | 44-0 H 22 0 02-22 || 549-6! 28-0 269-5 | 27-5 8 0 || 24 58-72|| 549-6} 43-8 322-0) 43-7 H 23 0 02-84 || 548-8| 27-9 264-9 | 27-6 10 O | 25 02-12)| 552-8} 43-2 298-0 | 43-2 H 3 OO 05-72 || 550-4} 28-0 271-6! 28-0 | 20) 06-56 |) 551-4} 28.2 268-2 | 28-5 18 0 | 25 03-16 || 554-5) 40-6 238-5 | 40-0 Ww 270 07-67 || 553-1| 28-8 276-3 | 29-5 20 0} 02-64 | 548-5 | 39-7 264-4} 38-8 Ww 4 0 05-09 | 559-2} 30-0 274-9) 30-8 22 On 06-79 || 526-7| 38-7 289-7 | 37-7 H (opty) 03-40 |) 559-8} 31-0 272.9} 32-0 23 0 | 05-60 || 538-9 | 38.3 299-3} 37-5 WwW 6) 03-00 | 559-3 | 31-2 269-7 | 32-4 28 0 0 07-34 || 549-2| 38.1 293-0] 37-2 H 8 0 03-00 || 558-5 | 31-7 272-0} 33-0 1 el 08-48 || 551-7| 37-8 289-8| 37-2 H LOO 00-33 || 556-9| 32-0 273-1! 33-5 DECLINATION. Magnet untouched, April 14¢, 1846—May 1847. Biri~uar. Observed 2™ after the Declination, s=0:000135. BaLance. Observed 3” after the Declination, s=0:000010. + Extra Observations made. ; The declinometer was noted 25° 02/52, but from the steadiness of the instruments during the day it was believed that the reading was 10 scale divisions in error ; it has been altered accordingly. Nov. 274 2h, , Gottingen Mean Time of Declina- tion Obs. dey oh. 3 18 cooooocoocoecoecoe bo bo cooocoo 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 25 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 | BIFILAR. BaLaNnceE. % | Gottingen >. | Mean Time Cor- |Thermo-|| Cor- |Thermo-|| 3°g | of Declina- rected. | meter. || rected. | meter. S|] tion Obs. | Se. Div. ic Mie. Div. C Chey ioe ag rie 561-1} 32-6 263-0} 33-3 Ww 2 AG 564-1) 32-4 242-8 | 32.9 WwW 4 0 555-7 | 32-2 258-3 | 32.5 H 6 0 554-1} 32-0 259-4| 32-5 WwW 7 0 545-8] 32-0 269-3} 32-8 H 8 0 549-0| 32-2 272-4| 33-2 || H 10 O 553-7 | 32-5 277-2} 33-5 H 554-5] 33-3 291-6] 34-3 W 18 0 552-5] 33-8 322.2) 34-7 H 20 0 556-7 | 33-9 327-7) 34.8 | H 22 0 548-7 | 33-9 331-4] 34-5 H 23 0 556-7 | 33-3 294-7 | 33-8 H}|10 0 0 1 0 563-4] 31-7 272-6} 31-9 WwW 25:0 563-5 | 31-8 271-8} 32-3 Ww 4 0 556-1] 32-1 273-8] 32-8 H 6 0 552-7} 32-4 273-2) 33-3 WwW hn) 551-6| 32:8 270-9} 33-8 H 8 0 554:0| 33-4 271-2} 34-5 H 10 O 557-1] 34-0 271-0} 35-2 H 557-9| 35-1 278-3| 36-7 WwW 1g 0 559-9} 36.3 275-3| 37-6 H 20 0 560-9| 36-6 272-8) 37-7 H 22 0 561-6| 36-8 272-4) 38-0 H 23 0 554-3 | 37-0 286-1} 38-2 H jill 0 0 1 0 561-8| 36-4 269-5 | 36-8 WwW 220 561-7] 36-3 267-5 | 36-7 WwW 4 0 556-3 | 36-4 266-5 | 36-7 H 6 0 554-7 | 36.4 270-6] 36-9 WwW 7 0 555-8] 36-6 270-4| 37-2 H 8 0 553-3 | 36-8 275-4) 37-5 H 10 0 557-2) 37-0 275-8| 38-0 H 561-0| 37-7 274-0| 38-5 ‘W 18 0 561-9} 38-0 274-9} 38-8 H 20 0 558-3} 38-0 277-2)! 39-1 H 225 0 562-3 | 38-2 273-3} 39-2 H 23 0 561-3 | 38-3 270-5 | 39-2 HW? 708-0 1 0 561-0} 37-6 267-0} 38-0 WwW 2-0 560-9 | 37-5 266-8 | 37-9 WwW 4 0 556-6] 37-4 267-7 | 37-9 H 6 0 554-7 | 37-6 269-7} 38-0 WwW 7 0 554-1) 37-7 269-4| 38-2 H 8 0 554-0] 37-7 266-4| 38-5 H 10 0 559-7 | 38-0 265-2) 38-8 H 561-7} 38-7 269-7| 39-7 | W713 18 0 563-5 | 39-2 267-6| 40:3 | H 20 0 564-8 | 39-5 266-9} 40-5 | H 22 0 564-3 | 39-7 266-7 | 40-8 H 23 0 564-3 | 40-0 267-5 | 41-2 H]14 0 0 LO 564-9! 40-0 253-8} 40-8 WwW 2 0 565-6| 40-1 255-9 | 40-8 WwW 4 0 559-1) 40-2 261-1] 40-8 | H 6 0 557-4| 40-2 || 266-5] 40-8 | W 7 0 553-2| 40-2 266-9| 40-8 H 8 0 553-8! 40-3 266-1| 41-2 H 10 0 DECLINA- TION, 25 05-90 05-45 05-36 05-72 25 05-65 || 24 40-47 25 05-18 03-20 02-59 03-74 06-48 06-50 07-37 25 06-81 || 24 59-93 25 03-35 25 03-43 24 53-17 25 01-86 04-24 04-68 05-89 05-72 07-35 07-98 06-66 04-28 04-78 02-91 02-06 25 01-54 03-48 02-72 04-62 04-48 05-58 07-55 05-35 04-34 04-91 25 03-37 24 59-19 25 02-93 02-86 03-41 03-09 04-53 05-58 06-03 04-71 05-60 05-08 03-57 02.13 BIFILAR. BALANCE. Cor- |Thermo-|| Cor- |Thermo- rected. | meter. || rected. | meter. Se. Div. 2 Mic. Div. tn 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 | 33-0 555-0} 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 | 29-4 558-0! 28-9 29-4 Go to — bserver’s Initial. a — SaaqtSethethshm seeesestnsrss pees Pees mbit dit | © 1 DECLINATION. Magnet untouched, April 144 1846—May 1847. BIFi~aR. Observed 2™ after the Declination, k—0-000135. ___-MAG. AND MET. ops. 1846, a oe BALANCE. 279-9 | Observed 3™ after the Declination, s=0:000010. } Gottingen | Brriuar. | BaLance. ; | Gottingen Birivar. BALANCE. Mean Time | DEcLINa- || ] ap 4 gan imes|DECHINA- |---| aes of Declina- TION. | Cor- |Thermo-|| Cor- |/Thermo-| 2-3 | of Declina- TION. Cor- |Thermo-| Cor- |Thermo- tion Obs. | rected. | meter. | rected. meter. tion Obs. rected. | meter. || rected. | meter. } jh 5 Observer’s Initial. | | Se. Div. 2 |Mic. Div. | 557-5) 28-7 272-1 547-3| 28-8 | 259-5 | 555-2| 28-9 || 260-3 551-5) 29-0 | 260-0 29.2 || 263-5 29-7 | 263-0 30-0 | 270-3 30-7 || 278-4 30-8 | 273-5 30-7 273-4 30-7 272-9 274-2 pee ‘ Se. Diy. 3 Mic. Div. x 25 05-18 || 558-6| 37-8 || 266-5} 39-0 03-97 || 562-0| 38-7 || 271-4} 40-1 03-94 | 563-2 : 269-3 | 40-8 03-47 | 564-6 : 268-0 02-66 | 563-9 p 264-9 02-01 | 560-8 : 276-3 wo WO SCONDRNH OWN SCHNOK WF ,ooooosds 560-7 : 265-8 562-4 : 261-6 560-8 : 258-1 558-7 : 261-9 560-9 : 265-2 559.4 . 269-0 561-5 5 269-2 563-8 : 273-5 563-5 273-6 564-0 . 271-0 563-7 oi 270-1 562-1 : 262-8 267-9 266-3 265-3 271-2 269.8 267-0 271-2 277-0 267-9 267-2 266-5 269-0 ooooooccocoocoo 561-0 : 263-8 560-2 D 259-8 560-3 559-5 558-9 559-9 560-9 564-3 566-4 566-2 565-7 558-6 cooooococecoso 262-3 263-4 269-8 267-7 266-6 265-8 270-8 273-6 | 266-2 265-7 | 263-7 | 271-5 ececoccocecoeco 566-6 563-8 566-3 558-2 555-8 561-7 560-1 555-8 552-8 559-5 541-8 551-9 0 | 0 | 0 0 0 | 0 0 | 0 | 0 0 o | 0) 262-7 258-3 256-4 257-3 255-4 259-4 266-1 270-0 264.6 269-0 264-7 278-5 ooococococeoeceso 554-9 558-6 550-6 548-6 555-6 553-5 558-2 557-6 558-4 548-0) 33- ‘7| 33-7 556-7 6 ‘7 | 33-5 555-7! 33- 8! 32-9 sagaaedaaee¢ ¢4¢gngneneenm e4eene¢nendee Seem sees eceoooocoococeoecoce 263-1 258-7 | 258.4| 37-9 258-6 | 38-1 | 258-8) 38-3 261-3| 38-6 44444 Seeetethseesnn ss4esnsensmsnem seesseserrtonms wwosedseseseeeesee 44eees coooococecoece cooocco a = DECLINATION. Magnet untouched, April 144, 1846—May 1847. i BiF1Lar. Observed 2™ after the Declination, k=0:000135. BALANCE. Observed 5™ after the Declination, s=0:000010. + Extra Observations made. 323 Initial. SOMSm meses adeereeeesom sheers see DAILY OBSERVATIONS OF MAGNETOMETERS, DECEMBER 24—3], 1846. Gottingen BIFILAR. BALANCE. % :| Gottingen | BIrILaR. BALANCE. a Mean Time || Drciina- > .8| Mean Time || Decuina- |e of Declina- TION. Cor- /Thermo-| Cor- |Thermo-| 2°3 | of Declina- TION. Cor- /Thermo-) Cor- |Thermo-|| % tion Obs. rected. | meter. || rected. | meter. ||S'~ | tion Obs. rected. | meter. || rected. | meter. || 5 F. ape oh m. £ u Se. Diy. Mice. Diy. bo a hy > am. 2 U Se. Div. | 2 | Mic. Div. & 2418 0 || 25 01-43) 565-4] 31-0 || 266-1] 30-7 || H | 28 18 0 | 25 02-75 || 562-3) 37-5 | 241-0} 38-6 | 20 0 07-69 || 558-2} 30-7 || 270-2) 30-7 || H 20 0 03-23 || 560-7 | 37-6 || 243-2| 38-5 |) 22 0} 04-51 | 559-9| 30-7 || 249-9| 30-7 || W 22 0 02-91 || 556-0| 37-6 | 248-8} 38-2 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 25 0 0 05-82 || 556-9] 30-6 || 260-9| 30-7 | W}29 0 O 03-95 || 554-2| 37-7 || 248-5} 38-8 1 3 07-20 || 554-8] 30-7 || 266-4} 31-0 H 1 0 04-21 |) 556-3) 38-2 | 242.8) 39.5 2 0 05-87 | 552-9} 30-9 || 272-8} 31-1 WwW 2 0 05-55 || 568-1) 38-6 || 240-0] 39-8 4 0 02-96 || 542-9] 31-2 || 290-4) 31-7 | H 4 0 03-90 || 559-4 | 39-2 || 241-8) 40-5 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 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 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 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 18 0 | 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 20 0 01-75 || 554-9| 30-4 || 262-4} 30-7 || H 20 0} 01-34 || 558-3) 38-5 || 234-7| 38-7 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 ‘ 23 0 04-31 || 551-2) 30-4 || 272-1] 30-7 || H 23 0} 03-30 || 545-3| 38-0 || 242-6] 38-2 26 0 0 07-79 || 552-1} 30-5 || 268-8] 31-0 | W}30 0 0 05-00 || 557-0| 37-9 || 245-8] 38-0 | 1 0 08-01 || 552-5) 30-8 || 269-8} 31-8 || H Theat} 05-13 || 556-5 | 37-8 || 244.4] 38.2 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 | 4 0 | 24 59-50) 552-5] 33-0 || 303-1) 34.5 H 4 Oo! 03-14 || 560-7 | 38-6 || 250-0] 39-5 | 6 O || 25 04-46 |) 559-1| 34-2 || 277-4) 35.3 | W 6 0, 02-35 || 558-9 | 39.2 |) 244-8} 40-1 t 7 0 02-79 || 558-6] 34-5 || 272-1] 35-5 || W 0 01-83 || 557-7 | 39-3 || 245-2] 40-1 | 8 0 01-54 || 557-2} 34-6 || 275-8] 35-5 | W 8 0) 01-92 || 560-5| 39-4 | 245-1) 40-1 | 10 0 00-65 || 555-5| 34-5 || 271-5] 35-2 || W 10 0 00-94 || 560-5| 39.4 || 243-5) 40-1 7 | 97 18 0O | 25 02-13 || 559-5] 30-8 || 261-1| 30-8 H 18 0 25 01-98 |) 562-8] 39-5 || 235-4| 40-2 | 20 0 02-99 | 560-3} 30-8 || 269-1] 31-7 || H 20 0 01-68 || 561-7 | 39-5 | 253-8] 40-3 im 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 } 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 } 28 0 0 06-19 | 555-7| 32-3 || 275-2) 33-3 || W} 31 0 0, 03-27 || 558-9} 39-9 || 253-7) 40.7 1 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 \- 2 0 06-29 | 557-5| 33-6 || 265-5| 34-8 || W 2 0 05-33 || 560-8 | 40-4 || 253-0} 41-2 4 0 || 25 04-64) 558-5) 35-0 || 271-9} 36-5 Wa 4 2] 03-30 || 560-7 | 41-0 | 251-2| 42.2 | 6 0 | 24 55-78 || 561-8| 36-0 || 268-2} 37-2 | W 6 0} 02-46 || 563-1) 41-6 || 244-1) 42.5 | 7 O || 25 01-85) 562-0} 36-4 || 261-6] 37-6 || W 7 0 01-88 || 563-3) 41-8 || 231-8) 43-0 | 8 0 | 24 55-76) 567-1) 36-6 || 257-0) 37-7 | W 8 0 | 25 01-76 || 561-8) 42-0 || 241-0) 43-2 1 10 0 | 25 01-18 || 558-2] 36-9 || 249.2) 37-9 || W 10 0 | 24 59-71 || 561-2} 42-2 || 240-7} 43.1 a | a DeEcLINATION. Magnet untouched, April 144, 1846—May 1847. i| _ Birirar. Observed 2™ after the Declination, s=0:000135. BatLance. Observed 3™ after the Declination, s=0-000010. ies j a z | | | 7 | . f ‘ EXTRA OBSERVATIONS OF MAGNETOMETERS. MAKERSTOUN OBSERVATORY, 1846. 326 Extra OBSERVATIONS OF MAGNETOMETERS, JANUARY 7—Marcu 14, 1846. Gott. < Gott. c Gott. Mean DECLINATION. ey premreahicy Mean DECLINATION, iene eee Mean DECLINATION, |} — Time. Time Time. a; oh. Min. ” z Min. | Se. Diy. || Min. | Mic. Div. ad. h Min. 3 ip Min, | Se, Div. |} Min. | Mic. Div d. oh. |} Min Jan. March. “6 0 | 25 00.28 2 | 532.4 3 10 | 25 06-53 |} 12 | 531-6] 13 | 421-0] 13° 7 0 30 | 24 55-22|| 32 | 545-1] 33 35 | 25 06-70) 37 | 532-1]) 38 | 415.4 30 47 | 25 01-21 || 48 | 533-8 | 49 11 | 24 58-65]! 12 | 543-3) 13 | 398-4] 13 8 0 7 ef 0 01-18 2 | 539-5 3 19 58-11 || 20 | 550-8 || 21 | 408-7] 13 10 0 15 06-14 || 17 | 544-5) 18 —|——_|——— — - 5 “8 0 07-64)) 2 | 551-5 3 0 | 25 07-37 2 | 546-4 3 | 418-0 10 30 02-96 || 32 | 539-4 || 33 | 429.5 15 7 13 0 | 25 09-67 2 | 541-4 3 45 05-72 || 47 | 539-6 || 48 | 427-6 20 40 06-06 || 42 | 545-2|| 43 0 06-86 2 | 545-2 3 | 418-3 25 7 14 0 03-65 2 | 545-2 3 5 06:79} 7 | 544-0 8 | 393-1 30 a Se ess) a 0 02-35 || 2 | 541-4 3 | 382.4 35 23 20 0 | 25 26-37 2} 559-1 3 —_|—_—|—_ — 40 10 26-47 || 12 | 562-6|| 13 45 23 | 533-4 || 24 0 | 25 00-28 2 | 562-3 3 | 360-5 50 25 17-39 || 27 | 536-8 || 28 10 03-70} 12 | 551-9) 13 | 360-9] 13 11 0 40 11-27 || 42 | 546-1} 43 20 05-72 || 22 | 547-3) 23 | 362.9 51 23 22 0 | 25 19-86 2 | 537-9 3 — —— -—— ——— 0 | 24 58-55 2 | 549-8 3 | 370-8] 13 18 0 24 7 0 | 24 49-54 2 | 512-8 3 0 | 25 00-40); 2 | 551-7 3 | 369-2] 13 19 | 17 5 43-52 7 | 520-3 8 12 10 0 03-82 2 | 553-8 3 | 364-5 25 10 39-19} 12 | 525-9}|) 13 || —_ ———_ —— 30 15 34-82] 17 | 535-7 || 18 0 | 25 22.96 2 | 541-4 3 | 363-2 35 20 36-99 | 22 | 543-2|) 23 5 21-:09|| 7 | 545-5 8 | 364-2 40 25 39-04 || 27 | 542-9|) 28 15 19-59 || 17 | 545-0] 18 | 371-5 45 30 39-65 || 32 | 541-6]| 33 35 17-29 || 37 | 546-0 || 38 | 385-8 50 45 43-42 || 47 | 561-0}) 48 0 21-09 2 | 545-2|| 3 | 402-8] 13 20 0 24 8 0 53-15 2 | 559-9 3 25 21-59 || 27 | 538-7 || 28 | 423-6 10 24 9 0 | 24 57-01 2 | 530-5 3 46 25-78 || 47 | 559-4]! 48 | 431-4 20 24 10 0 | 25 02-13 2 | 533-7 3 50 26-30 || 52 | 556-5 || 53 | 435-3 30 pelts. 2 —s —— 55 24-93 || 57 | 567-2|| 58 | 435-8 40 Feb. 0 26-18 2} 559-8|| 3 | 437-1] 13 22 0 8 23 0 | 25 08-85 2 | 556-8 3 10 25-96 || 12 | 553-2] 13 | 453-6] 14 2 0 5 10-75 7 | 554-4] 8 20 20-52 || 22 | 555-1 }| 23 | 459-8 45 15 12-38 || 17 | 550-2} 18 25 20-96 || 27 | 564-2]| 28 | 458-3] 14 3 |) 25 20 12-82 || 22 | 552-7 || 23 35 22.53 || 37 | 563-0) 38 | 462-5 30 30 12-35 | 32 | 552-6]| 33 50 21-79 || 52 | 563-9 || 53 | 482-7 35 9 0 0 11-22 2 | 552-0 3 0 19-41 2 | 556-7 3 | 489-0 40 SS a |_—_—_— 10 20-52 || 12 | 545-7 || 13 | 500-8 45 15 20 0 | 25 16-65 2 | 555-0 3 15 17-80 || 17 | 552-7 || 18 | 500-8 50 25 11-34 || 27 | 551-4 || 28 25 19-95 || 27 | 558-1 ]| 28 | 490-9] 14 4 0 15 22 0 10-74 2 | 539-8 3 35 19-98 || 37 | 576-2|) 38 | 495-0 10 45 19-84 || 47 | 577-4 || 48 | 532-7 15 16 7 0 | 24 49-48 2 | 533-8 3 50 18-18 || 52 | 578-5 |) 53 | 551-4 20 10 40-96 || 12 | 548-0) 13 55 15-98 || 57 | 576-7 || 58 | 579-7 30 20 45-78 || 22 | 558-1 ]} 23 6 0 15-24 2 | 561-8 3 | 575-5 40 30 53-81 || 32 | 561-4]| 33 5 02-94|| 7 | 559-5 8 | 564-4 50 45 55-76 || 47 | 559-9 || 48 10 04-39 || 12 | 565-0|| 13 | 584-9 55 16 8 0 | 24 53-88 2 | 561-0 3 15 00-87 || 17 | 587-8 || 18 | 615-4] 14 5 0 16 9 0 | 25 04-91 2 | 553-4 3 20 05-47 || 22 | 635-3 |) 23 | 670-4 10 16 10 0 | 24 57-62 2 | 535-0 3 24 | 626-6 15 (ee ee — 25 | 25 06-12)| 26 | 628-1|| 27 | 645-3 20 20 10 0 | 25 00-84 2 | 552-6 3 28 | 602-6 || 29 | 627-2 26 10 01-14} 12 | 551-5 |} 13 30 | 24 53-85 || 32 | 570-8|| 33 | 569-4 28 20 02-25 || 22 | 550-9 | 23 34 | 555-0 30 2) | ee ee | 35 | 25 05-58 || 36 | 545-2 32 25 8 0 | 25 11-77 2 | 545-9] 3 37 | 544-6 |] 38 | 527-4 35 25 9 || 50 20-52 |) 52 | 528-0) 53 40 10-83 || 42 | 544-0 |) 43 | 514-1 40 55 18-61 || 57 | 522-8 |) 58 45 10-98 || 47 | 535-5 || 48 | 503-9 45 25 10 0 15-76 2 | 522-6 3 50 08-14)| 52 | 539-4|| 53 | 491-6 50 5 09-13 7 | 529.4 8 55 08-93 || 57 | 540-4 || 58 | 479-9] 14 6 0 BirivaR. k=0:000135. Bauance, k=0-000010. Jan. 72 6%, Clock 105 fast, set right. Jan. 2427» 10™. Clock 158 slow, set right. Feb. 27419», Clock 36* slow, set right; rate 1*-5; diminished. Mar. 134 8s—104, he declination magnet was looked at occasionally ; there appeared to be little motion. BIFILAR Corrected. = Fl ~ Tp ~T to wo 1 po Ty to ST 19 So | | en on bo bo ExtTRA OBSERVATIONS OF MAGNETOMETERS, Marcu 13—26, 1846. BALANCE Corrected. 3 | 472-1 447-0 3 | 454-9 3 | 396-5 8 | 397-5 400-3 394-8 393-7 400-0 399-4 395-8 392-1 385-0 375-8 3 | 365-0 384-5 3 | 345-3 348-8 345-7 339-5 332-6 327-8 324-0 322-0 319-5 314-9 312-9 314-1 318-1 350-3 417-8 435-5 553-3 536-1 524-9 514-8 509-8 506-5 496-3 494-1 494-1 494-8 495-9 499-3 514-0 503-8 498-2 490-7 507-8 497-7 477-1 . | Mic. Div. 495-7 513-9 471.4 Gott. Mean Time. Tae March. 14 6 14 7 16 7 16 8 16 9 16 10 493-2 486-7 480-7 Birivar. k=0:000135. BALANCE. k=0:000010. Gott. LAR BALANCE BIFILAR DECHINATION. Caeenee Corrected. es DECLINATION. || Corrected. Mant eo a Min. | Se. Diy. |} Min. |Mic.Diy.J d. oh. || Min.] ° ” Min. | Se. Div. March. 10 | 25 09-49]! 12 | 536-1|| 13 | 468-0] 16 10 || 55 | 24 56-47] 57 | 506-1 20 08-34 || 22 | 539-4|) 23 | 464-9] 16 11 0 56-40 2 | 501-3 30 05-45 || 32 | 547-3 || 33 | 458.4 5 56-14 7 | 495-1 40 08-59 || 42 | 552-6] 43 | 452-1 10 52-87 || 12 | 499-1 50 | 25 05-50) 52 | 539-4]| 53 | 453-1 15 50-75 || 17 | 503-9 0 | 24 55-96 2 | 548-5 3 | 448-3 20 49-98 || 22 | 516-4 5 49-98 7 | 566-0 8 | 433-8 25 52-60 || 27 | 516-8 10 48-20 || 12 | 598-7) 13 | 417-3 29 | 509-4 15 | 24 59-93]| 17 | 593-7] 18 | 412-5 30 | 24 58-18]} 31 | 520-0 20 | 25 07-81 || 22 | 567-0) 23 | 411-9 32 | 527-9 25 | 25 06-23)| 27 | 551-8 }) 28 | 410-3 34 | 534-5 30 | 25 05-52]| 32 | 539-3] 33 | 455-9 35 | 25 01-27 |) 37 | 539-6 35 | 24 58-80]| 37 | 550-6|| 38 | 398-5 40 | 24 58-70) 42 | 549.3 45 | 25 01-88 || 47 | 546-8 || 48 | 392-6 44 | 560-0 55 | 24 55-51) 57 | 545-0] 58 | 390-4 45 57-51] 46 | 558-5 0 | 24 56.03 2 | 543-4 3 | 391-2 48 57-51 10 | 24 59-37]| 12 | 528-4]| 13 | 399.4 50 56:03 || 52 | 564-3 35 | 25 00-81 || 37 | 542-0 || 38 | 397-7 55 50-69 || 57 | 559-4 0 | 25 08-88 2 | 543-4 3 | 319-8] 16 12 0 51-76 2 | 546-8 15 | 24 57-71) 17 | 552-1] 18 | 318-3 5 53-95 7 | 534-0 30 | 25 02-22]| 32 | 544-0]! 33 | 328-2 10 54-80 || 12 | 528-1 — —_— 15 | 24 59-57 |) 17 | 517-1 0 | 25 03-00 2 | 553-2 3 | 411-3 20 | 25 08-25 |) 22 | 510-6 10 | 24 58-53 || 12 | 554-4|) 13 | 407-0 25 13-05 || 27 | 498-1 42 | 25 02-32|| 43 | 550-2) 44 | 402-9 30 15-85 || 32 | 490-0 0 | 24 59-04 2 | 549-0 3 | 407-0 35 14-99 || 37 | 480-5 27 | 24 55-60]) 28 | 536-5 || 29 | 421-3 39 | 487-8 40 | 25 01-18 || 42 | 535-7 || 43 | 425-1 40 10-16 || 42 | 501-9 50 07-67 || 52 | 538-9) 53 | 422.2 45 04-14 || 47 | 513-6 0 04-07 2 | 547-2 3 | 384-6 50 00-71 || 52 | 547-5 5 07-27 7 | 529-9 8 | 359-9 55 01-32 || 57 | 550-3 10 05-22|) 12 | 526-5]! 13 | 347-2} 16 13 0 03-75 2 | 551-3 15 | 25 03-67 || 17 | 525-7)! 18 | 334-6 19 | 541-3 LEED 0 | 25 22-25 2 | 537-4 20 | 24 58-25 || 21 | 565-6|| 22 | 308-7} 17 3 0 | 25 21-73 2 | 544-1 23 | 576-9|| 24 | 294-4] 17 4 0 | 25 16-21 2) 556-4 25 | 25 12-51|| 26 | 573-6] 27 | 279-9] 17 8 0 | 25 05.94 2 | 543-6 28 17-67 || 29 | 569-4 17 9 |) 25 | 24 52-35) 27 | 584-8 30 22-80) 31 | 544-6) 32 | 254.4 30 | 24 49-37 32 | 589-4 33 26-79 || 34 | 504-3 40 | 25 02-15 || 42 | 572-9 35 23-78 || 36 | 490-5 || 37 | 244.9 45 09-96 || 47 | 553-0 38 | 492-0 || 39 | 257-6 50 12-35 || 52 | 532-0 40 | 25 04-68] 41 | 507-0} 42 | 258-4 55 05-22 || 57 | 534-2 43 | 24 57-55]| 44 | 513-1 17 10 0 01-85 2 | 542-1 45 55-83 || 46 | 526-2|| 47 | 246-9 5 01-95 7 | 548-9 48 54-46 || 49 | 537-2 10 03-37 || 12 | 552-4 50 53-34|| 51 | 554-4]) 52 | 251-5] 17 20 0 07-72 2 | 533-0 53 54-73 || 54 | 570-4 30 08-34) 32 | 531-3 55 | 24 58-29) 57 | 566-3|| 58 | 256-0} 17 22 0 | 25 04-89 2 | 536-3 0 | 25 10-30 2 | 552-8 3 | 264-4} 18 10 0 | 24 58-29 2| 5748 5 | 25 11-44 7 | 527-3 8 | 283-4 15 | 25 02-75 || 16 | 562-5 10 | 25 03-50}) 12 | 537-8|| 13 | 299-9 15 | 24 58-56}) 17 | 545-1|| 18 | 302-2] 26 0 0 | 25 16-36 2 | 524-2 20 | 24 59-50 || 22 | 536-3) 23 | 295-9 20 17-56 | 22 | 544.7 25 | 25 00-01) 27 | 531-3) 28 | 293-3 35 16-38 | 37 | 531-5 30 | 24 58-72|| 32 | 536-7] 33 | 284-8] 26 1 0 15-81 2 | 541-3 35 | 25 01-51)| 37 | 524-5] 38 | 265-7] 26 2 0) 22-10 2 | 565-9 40 05-52 || 42 | 513-4]) 43 | 251-2 45 | 18-30 || 47 | 555-3 45 03-00 || 47 | 506-0} 48 | 238-3] 26 3 0 17-10 2) 543-2 00-85 || 52 | 504-71 53 | 233-2 15 16-60 || 17 | 544-1 327 BALANCE Corrected. Min. | Mic. Diy. 58 | 221-7 3 | 216-1 8 | 217-0 13 | 221-8 18 | 230-7 23 | 230-0 28 | 209.4 33 | 190-9 173-5 155-5 148-6 168-1 171-1 3 | 179-0 8 | 182-0 180-3 175-6 159-3 138-8 115-3 84-2 78-4 78-8 96-0 101-7 115-1 3 | 422-1 3 | 439-3 3 | 430-7 3 | 423-4 356-1 343-0 328-2 330-7 334-6 334-3 3 | 333-0 8 | 333-9 334-1 3 | 379-8 384-2 3 | 390-7 BIFILAR BALANCE inzisne BIriLaR BALANCE Corrected. Corrected. pou ON Corrected. Corrected. Min. | Se. Div. || Min. | Mic. Diy: ° . » 4 Min. | Se. Div. || Min. | Mic. Div. . || Min. 32 | 552-0] 33 | 389-4 25 16-55|| 52 | 470-8 140-1 ‘9 || 30 | 556-2) 3 | 395-1 17-60 471-7 135-5 fs 18-13 493-4 143-9 Begs ee 15-47 ; 83-4 994-7 387-7 13-51 : 26.7 Bods ais 02.55 || : 105-3 561-1 394-3 : 14-73 || 35 -4|| 33 | 124.9 558-5 404-5 10-90 s 140-7 551-5 401-0 15:37 : ic 152-3 549.2! 3 | 396-7 12-22 ‘ 160-5 550-9] 3 | 387-8 14-85 || 55 3 186-1 5 12-04 : 199-7 25 06-23|) § * 200-2 585-6 432-3 24 59-59 531. 182-6 5751 435-1 25 01-21] 22 | 551- 176-1 564-2 440-1 : 09-82 32-3 || 33 | 187-2 582-4) 3 | 524-4 08-68 522: 3 | 194-6 576-9 522.7 03-97 : 3 | 209-4 571-8 517-9] 6 1: 00-13 ; 211-6 567-0 || 43 | 507-8 02-01 : 3 | 215-5 566-0 507-2 02-96 : 215-8 485-8] 6 23 15-39 j. 366-9 462-7 é 14-40 27- 361-3 443-0 11-88 || 35 .4|| 33 | 359-9 434.8 : 5 10-31|| 2 | 538. 361-3 434-4 425-2 53-17 422.7 54-59 420-0 59-53 396-1 02-19 362-6 03-50 339-2 04-51 332-7 340-2 325-1 305-8 311-5 289-1 257-4 & bo oooco|;oanc 419-0 4183 417-5 409-4 384-3 363-5 bo 2 7 2 2 2 2 SS | 443-8 436-2 424.2 405-7 383-2 wo mpowws 25 13-72 : 470-8 234-9 d 04-61 38- 478-0 01-51 5 461-8 188-9 02-80 53- 452-7 02-79 . 414-1 129-6 10-06 3: 266-9 110-8 08-01 : 271-8 68-8 _—<———_—_—_ - 67:8 0 | 25 03-93 : 370-1 68-0 0 | 24 50-92 34. 407-6 56-11 379-4 84-0 : 59-56 59-i 365-8 120-9 : “6 342-6 160-9 : : 336-7 172-2 6 543-¢ 3 | 335.4 175-2 9: . 333-5 183-3 : Z 3 | 332.3 198-7 | 209-9 E 4 384.3 201-2 56- “3 | 376-4 156-54 15 9 é 16 56-8 375-9 BrriLar. k=0-000135. BaLance. k=0:000010. r EXTRA OBSERVATIONS oF MAGNETOMETERS, APRIL 15—May 11, 1846. 329 BALANCE Gott. BIFILAR BALANCE Gott BIFILAR BALANCE f tel. Gore. Mean DECLINATION. Corrected. Corrected. Mean DECLINATION. Corrected. Corrected. } Time. Time. “Min. So. Div. |] Min. \Mic.Div.J d. h. || Min} ° ” Min. | Sc. Div. |} Min. | Mic.Div.J d. oh. || Min.] ° Min. | Se. Div. |] Min. | Mic. Diy. i April. April. | 32 551-4 | 33 | 372-1] 16 9 || 56 | 24 42-81|| 57 | 553-6) 58 | 252-1} 16 20 || 15 | 25 14-13]| 17 | 515-3] 18 | 327-8 i 2 | 544-0 3 | 374-6 59 | 575-1 30 15-54 || 32 | 514-6} 33 | 323-0 | 16 10 0 | 24 44.73 2 | 585-5 3 | 253-9 |__| ___|_—______||_ |. — 505-9 3 | 340-3 5 | 24 53-27 7 | 576-2 8 | 254-0] 21 10 0 | 25 06-79 2 | 555-3 3 | 359-5 518-9 || 28 | 368-2 10 | 25 01-39)) 12 | 560-8 || 13 | 256-1 10 06-76 || 12 | 555-4 | 13 | 358-2 517-8 || 33 | 377-2 15 | 25 01-54)| 17 | 555-7 18 | 258-0 = — 515-2 | 43 | 389-2 25 | 25 01-07|| 27 | 546-6 |) 28 | 260-8] May 524-3 3 | 409-4 35 | 24 59-59|| 37 | 533-8] 38 | 254-0} 4 2 0 | 25 18-92 2 | 551-2|| 3 | 335-6 566-2 3 | 490-5 45 | 24 58-32]| 47 | 522-7|| 48 | 258-2] 4 3 || 55 22-50 || 57 | 582-3} 58 | 408-1 570-2 18 | 504-9] 16 11 0 | 25 02-69 2) 516-8 3 | 263-3] 4 4 0 21-32 2 | 579-3 3 | 418-1 573-8 || 33 | 512-3 10 | 24 47-26/} 12 | 544-9} 13 | 251-1 10 18-54 || 12 | 567-0} 13 | 441-3 588-7 || 53 | 529-3 15 | 24 51-59]! 17 | 557-7] 18 | 222.0 15 19-58 || 17 | 551-1}} 18 | 410.3 596-4 || 58 | 536-0 20 | 25 02-52] 22 | 546-5) 23 | 199-6 20 18-34 || 22 | 549-6 || 23 | 463-8 613-9 3 | 540-4 25 06:09 || 27 | 538-4 || 28 | 182-7 25 16-86 || 27 | 550-7|| 28 | 471-2 631-2) 8 | 527-2 30 06-12|) 32 | 538-5] 33 | 169-9 30 16-23 || 32 | 553-9 || 33 | 479-4 626-1 35 05-45 || 37 | 534-9] 38 | 149-0 35 14-17 || 37 | 549-0 || 38 | 484.7 614-1) 13 | 517-5 40 | 25 05-35|| 42 | 525-0] 43 | 173.4 40 12-98 || 42 | 551-8 |] 43 | 486-3 605-4) 18 | 511-3 50 | 24 53-92|| 52 | 521-8] 53 | 177-1 45 12-35 || 47 | 558-9 || 48 | 484.9 22 | 601-2) 23 | 509-8 55 | 24 56-20]| 57 | 517-5] 58 | 175-3] 4 5 0 14-46 2 | 556-9 3 | 488-0 27 | 585-2) 28 | 510-39 16 12 0 | 24 56-00 2 | 518-3 3 | 166-5 15 15-04 || 17 | 566-4}} 18 | 485.2 | 32 | 585-9) 33 | 510-6 10 | 25 00-60|| 12 | 508-7] 13 | 155-1 30 15-04 || 32 | 577-1 |] 33 | 483-6 42 | 574-1) 43 | 504-1 15 | 25 00-55]) 17 | 500-6] 18 | 155-1 50 09-76 || 52 | 569-9}| 53 | 489.5 | 560-2|} 3 | 501-2 20 | 24 57-01|| 22 | 535-7] 23 | 159-5] 4 6 0 12-23 2 | 564-0 3 | 487-4 562-8 || 33 | 491-1 25 | 24 52-50} 27 | 512-3) 28 | 159-5] 4 8 0 | 25 04-88 2 | 573-1 3 | 504-2 | 591-9 3 | 458-3 30 | 24 57-75]| 32 | 494-8] 33 | 146-5] 4 9 0 | 24 59-83 2 | 545-5 3 | 500-1 574-6] 13 | 444-3 35 | 25 05-69|| 37 | 483-2 35 49-48 || 37 | 550-6] 38 | 421-3 | 584-7 || 23 | 426-5 38 | 480-4} 39 | 130-8 40 51-72|| 42 | 543-8]| 43 | 382.6 | 546-5 | 33 | 423-7 403 06-12|| 42 | 481-1]) 43 | 121-1 45 56-30 || 47 | 528-5 || 48 | 350-8 531-7 || 38 | 428-3 44 | 482-7 50 58-70 |) 52 | 514-9 || 53 | 331-8 | 539-1) 43 | 430-6 45 07-94|| 46 | 481-4 55 55-40 || 57 | 502-7]! 58 | 308-7 550-2] 48 | 430-6} ~ 47 | 482-4) 48 | 114-5] 4 10 0 51-59 2 | 490-4 3 | 291-1 554-8 || 53 | 429.4 49 | 480-4 7 | 489-9 8 | 268-9 | 556-6 | 58 | 428-5 50 07-60 || 51 | 476-7 10 50-13 || 12 | 496-7} 13 | 257-2 2) 557-6 3 | 427-1 52 | 478-1) 53 | 108-5 15 49-37 || 17 | 490-2] 18 | 234-9 540-2) 18 | 431-1 54 | 481-3 19 | 478-8 | 548-4) 38 | 417-3 55 07-07 || 56 | 483-3 20 46-61 || 21 | 465-4]} 22 | 194.9 535-1 || 48 | 417-0 57 | 482-7) 58 | 100.4 23 | 459-3 | 547-2 3 | 388-9 59 | 478-0 24 | 453-7 8 | 391-9} 16 13 0 08-32 1 | 476-3 25 44-90 || 27 | 446-5 |) 26 | 180-5 13 | 389-3 2) 472-5 3 72.7 28 | 448-5} 29 | 175-6 18 | 356-4 4 | 473-0 30 43-58 || 31 | 451-9|| 32 | 170-3 5 09-79 6 | 476-8 34 | 463-0 23 | 333-3 7 | 474-2 8 68-0 35 43-72 || 37 | 485-7|| 36 | 167.4 9 | 477-9 39 | 489-4 28 | 296-9 10 08-34]) 11 | 482-5 40 44-53 || 42 | 491-6]} 43 | 137-2 33 | 252-6 12 | 481-5] 13 76-8 45 49-14|| 47 | 483-2} 48 | 103.4 519-6 14 | 488.4 50 53-54 || 52 | 491-5|) 53 | 103-1 | 516-3 15 04-71 || 16 | 483-7 55 54-72 || 57 | 495-2|| 58 | 115-3 | 511-7 373} 230-9 17 | 481-4] 18 82-3] 4 11 0 52-67 2 | 501-0 3 95-5 503-3 19 | 480-7 5 50-46 7 | 503-8 8 85-9 20 | 25 00-60) 21 | 475-0 10 50-04 || 12 | 504-8 || 13 79:8 43 | 219-0 22 | 473-8 || 23 84-5 20 52-87 || 22 | 510-2|| 23 | 104-5 24 | 483-1 |__| —_|____}|_ — i 25 | 24 55-06] 26 | 485-9 9 10 0 | 24 57-56 2 | 541-1 3 | 372-6 486-2 || 48 | 217-1 27 | 489-1} 28 86-0 10 | 24 58-72]| 12 | 538-0 || 13 | 368.8 i 471.4 29 | 498-1 |——_|—_—_—_——_||__ —— 1 481-3 30 51-09 || 32 | 506-4] 33 89-4] 11 18 0 | 24 51-10 2 | 529-2 3 | 235-7 | 493-4 || 53 | 243-6 35 | 24 49-10]) 37 | 510-0] 38 90-0 10 50-89 || 12 | 527-8] 13 | 242-1 515-5 | os 20 53-27 || 22 | 531-7/| 23 | 245-3 16 20 0 | 25 09.27 2 | 519-3 3 | 328-0 | 30 53-79 || 32 | 540-9|| 33 | 248-2 Birmar. k=0:000135. Bauance. k=0:000010. a MET. ozs. 1846. 330 EXTRA OBSERVATIONS OF MAGNETOMETERS, May 11—13, 1846. BIFILAR BALANCE Gott. BIFILAR BALANCE | DECLINATION. Corrected. Corrected. boing DECLINATION. Corrected. Corrected. DECLINATION, ! Min. ‘a # Min. | Sc. Div. || Min. | Mic. Div,] M h. Min. P ue Min. | Sc. Diy. || Min. | Mie. Diy. Min. ay. 50 | 24 54.62|| 52 | 554-3 || 53 | 258-6] 12 4 || 35 | 25 16-48 || 37 | 565-3|| 38 | 446-6 5 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 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 0 | 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 13 51-14] 14 | 638.3 54 | 476-4 15 54-82 16 | 407-2 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 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 7 | 475-7 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 O | 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 0 | 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 0 11-99 2 | 517-7 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 0 10:43 2 | 492.4 3 | 315-8 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 O | 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 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 50 19-53 || 52 | 511-9 30 14-50 || 31 | 510-6 || 32 78-5 0 19-61 2 | 509-1 3 | 324-1 35 10-97 || 37 | 494-2]) 38 | 110-0 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 0 50 17-39 || 52 | 509-7]! 53 | 335-7 45 | 24 52-17] 44 | 509.4 0 0 16-41 2 | 522-8 3 | 335-3 46 51-76 | 47 | 507-7 || 48 | 151-6 30 10 16-12 |) 12 | 524-2]| 13 | 336-0 50 48-83 | 49 | 505-9 0 30 15-07 || 32 | 538-4|| 33 | 333-4 51 48-36 | 52 | 505-0|| 53 | 152-8 0 45 15-79 || 47 | 530-3 || 48 | 337-4 55 46-72 0 0 15-45 2 | 534-5 3 | 339-9 56 46-28 | 57 | 503-9|| 58 | 169.4 0 i) 19-17 2 | 574-1 3 | 392-2} 12 11 0 43-65 0 32 14-98 || 33 | 568-4 || 34 | 465-2 1 43-82 2 | 514-7 3 | 169-4 0 0 10-06 2 | 555.4 3 | 486-5 4 | 518-3) 0 Birinar. k=0:000135. BALANCE. k=0-000010. May 114 224 10™. Clock 238 slow, set right. 7 ExtrA OBSERVATIONS OF MAGNETOMETERS, May 12—Juty 11, 1846. 331 H Gott. Gott. : BALANCE BIFILAR BALANCE BIFILAR BALANCE / Shard Corrected. Mean DECLINATION. Corrected. Corrected. Mean DECLINATION. Corrected. Corrected. | Time Time. | Min. Se. Diy. || Min, |Mic. Div. a. h. |] Min.| 2°” Min. | Sc. Div. |) Min. |Mic.Div.J a. nh. || Min] ©” Min. | Se. Diy. || Min. | Mic. Div. ia May. June. | 7 | 518-1 8 | 167-6] 13 9 0 | 25 00-62 2 | 561-2 3 | 361-8] 22 14 O | 24 59-44 2 | 543-3 3 | 265-7 | 9 | 525-4 13 10 0 04-34 2 | 543-2 3 | 353-8 35 | 24 55-06 || 37 | 550-4|| 38 | 269.7 112) 517-5|| 13 | 184-3 14 8 gerd 25 11-41 2 | 576-1 3 | 371-5 22 15 0 | 25 05-15 2 | 526-0 3 eles 17 | 513-4]) 18 | 197-2 14 9 0 03-90 2 | 552.0 3 | 351-8 10 12-98 || 12 | 525.7|) 13 | 298-4 | 22 | 514-8 || 23 | 200-8 14 10 0 06-37 2 | 551-4 3 | 348.9 15 14-26 || 17 | 530-8 2 512-5 || 28 | 165-9 20 14-60 || 22 | 534-7 |) 23 | 290-5 } 489-0 || 33 98-7} 18 18 0 | 25 12-67 2 | 546-1 3 | 296-2 25 13-99 || 27 | 538-7 |) 28 | 284-9 479-3 40 03-70 || 42 | 549-7 || 43 | 290-8 30 12:08 || 32 | 539-8 || 33 | 282-1 36 | 457-7 || 37 91-9} 18 19 0 02-72 2 | 553-8 3 | 291-3 45 08-43 || 47 | 543-6 |) 48 | 283-9 38 | 452-7 || 39 93-3} 18 20 0 02-05 2 | 573-0 3 | 317-9] 22 16 0 | 25 04.37 2) 548-0 3 | 282-6 41 | 385-7 || 42 99-2 ad —— —— 22 17 0 | 24 58-69 2 | 527-6 3 | 347-5 | 43 | 376-9|| 44 | 102-2] 23 4 0 | 25 15-14 2 | 583-8 3 | 396-4] 22 18 0 | 24 58-45 2 | 542-9 3 | 375-0 | 46 | 401-5 || 47 | 106-7 32 | 607-0 || 33 | 427-2 —— | — ) 386-8 || 49 | 102-0 35 06-83 | 37 | 614-0|| 38 | 431-7 July. 401-2|} 52 | 102-4 40 08-45 || 42 | 614-9|| 43 | 438-4] 3 18 0 | 25 02-26 2 | 515-4 3 | 207-8 63 | 417-2 45 09-19|| 47 | 607-0) 48 | 443-9} 3 19 0 | 24 59-66 2 | 529-0 3 | 262-6 | 54 399-8 50 09-08 || 52 | 608-0 || 53 | 444.3 3 20 0 | 25 01-90 2 | 536-8 3 | 300-1 1 56 | 418-6 || 57 73-3] 23 5 0 02-46 2 | 592-9 3 | 459-8 — ———||——_ — | 424.1 |) 59 52-2 10 01-11) 12 | 583-5 || 13 | 472-6 6 0 0 | 25 19-68 2 | 497-2 3 | 397-6 1 | 423-2 20 03-74) 22 | 569-5 || 23 | 477-8 10 17-81 || 12 | 507-7) 13 | 395-6 \ 2 39-7 30 03-02 |) 32 | 570-2} 33 | 478-9 20 11-93 || 22 | 527-5|| 23 | 390-2 427-0 4 26-2 45 05-69 || 47 | 562-3} 48 | 475-6 30 14-15 || 32 | 538-5 |) 33 | 389-7 424.1 6 5-21 23 6 0 07-10 2 | 562-0 3 | 413-2 40 13-64 || 42 | 547-9 |) 43 | 383-9 433-3 | ——_———_ || — 6 1 0 12.22 2 | 554-7 3 | 371-5 464.4|| 8 |+ 2-1] June. 479-7|| 11 |-20-9} 2 8 0 | 25 01-09 2 | 549-4 3 | 440-5 6 10 0 | 25 01-29 2 | 558-2 3 | 404-8 484.7 || 13 | -—43-1 5 | 24 55-29 7 | 545-7 8 | 453-3 10 | 24 55-73 || 12 | 566-8] 13 | 391-6 479.0 || 15 |—93-6 10 47-62 || 12 | 560-2} 13 | 458-5 15 54-66 || 17 | 571-1] 18 | 387-0 471-7 || 17 |-113-6 15 37-16) 17 | 587-6 || 18 | 441-3 20 54-77 || 22 | 574-6 || 23 | 378-7 476-9 20 38-91 || 22 | 606-4} 23 | 430-3 25 | 24 58-63) 27 | 570-0]! 28 | 373-7 19 |-115-7 25 47-79 || 27 | 590-8 || 28 | 430-0 30 | 25 02-13]| 32 | 558-4] 33 | 370-2 30 50-49 || 32 | 580-3 || 33 | 434-9 —|——. -—— = 23 |-—92-5 40 54-38 || 42 | 567-1 |] 43 | 436-0] 7 20 O | 24 58-52 2 | 536-6 3 | 366-7 26 |-—63-0 2 9 0 | 24 58-42 2 | 561-0 3 | 422.9 25 | 24 57-64) 27 | 534-0]| 28 | 383-7 2 10 0 | 25 01-61 2 | 549-4 3 | 387-2] 7 22 0 | 25 02-15 2 | 527-6 3 | 395-5 29 |-18-1 =| —||—— —|—_ —-— |—_ | 32|4+ 7-3] 9 6 0 | 24 59-66 2 | 604-0 3 | 507-1] 11 2 0 | 25 17-40 2 | 508-1 3 | 388-5 10 | 24 59-23} 12 | 593-3}! 13 | 519-5 10 19-39 || 12 | 532-7|| 13 | 383-1 35 11-8 20 | 25 00-44] 22 | 598-4}! 23 | 517-4 15 19-89 || 17 | 566-4|| 18 | 372-9 37 21-8 45 07-54 || 47 | 579-1 |} 48 | 504-0 20 23-07 || 22 | 592-0] 23 | 364.6 43 41-6] 9 7 0 07-10 Qo? 7 3 | 496-8 25 23-92 || 27 | 604-1 || 28 | 362-3 48 60-0 a — 30 22.03 || 32 | 571-0]) 33 | 385-2 53 88-3] 15 9 2 | 25 07-84 3 | 565-4 4 | 440-1 35 19-58 || 37 | 556-1]| 38 | 403-1 58 95-7 45 | 24 59-51 || 47 | 558-6 |) 48 | 427-5 40 19-26 || 42 | 544-0]! 43 | 422-6 3 | 116-1] 15 10 0 | 24 53-65 2 | 569-5 3 | 412-4 45 23-56 || 47 | 531-8]! 48 | 443.4 8 | 129-2 10 | 25 01-04]) 12 | 559-8 || 13 | 409-4 50 23-61 || 52 | 506-5]} 53 | 463-4 18 | 148-2 15 02-53 || 17 | 556-2 || 18 | 404-8 55 22-10 || 57 | 516-0]| 58 | 462-0 |__—————|_— | ———_ oo — 11 3 0 24-82 2 | 552-2 3 | 454-9 3 | 319-8] 18 18 0 | 25 12.22 2 | 533-0 3 | 386-2 5 27-62 7 | 553-5 8 | 463-6 33 | 333-5 50 16-21]| 52 | 538-4} 53 | 355-3 10 25-47 || 12 | 559-8} 13 | 467-0 3 | 347-4] 18 19 0 17-80 2 | 538-5 3 | 350-5 15 25-02 || 17 | 573-3]| 18 | 475-2 3 | 353-2 15 19-84] 17 | 542-3] 18 | 345-9 20 25-80 || 22 | 591-3 |) 23 | 483-1 33 | 351-3 20 18-94 || 22 | 544-0] 23 | 345-0 25 23-70 || 27 | 569-9 || 28 | 505-2 3 | 354-6 30 17-53 || 32 | 545-6 || 33 | 344-4 30 21-24 || 32 | 565-9]! 33 | 516-6 3 | 368-0 40 15-88 | 42 | 544-4|| 43 | 345-5 35 18-82 || 37 | 557-1|| 38 | 530-6 3 | 377-4] 18 20 0 08-14 2 | 544-3 3 | 351-9 40 15-49 || 42 | 554-0|| 43 | 546-5 3 | 404-6 —||— | ——_—_—__||——_ _—_ 45 16-57 || 47 | 555-7|| 48 | 558-9 3 | 394.4] 22 13 0 | 25 16-15 2 | 535-5 3 | 266-9 50 14-33 || 52 | 560-2 || 53 | 567-7 3 | 395-2 16 | 25 02-48] 17 | 537-4|| 18 | 246-4 55 13-99 || 57 | 573-6|| 58 | 563-9 3 | 389-7 25 | 24 59-01 || 27 | 550-4|| 28 | 270-8] 11 4 0 15-29 2 | 577-7 3 | 568-2 BIFILAR. k=0°000135. BaLANceE. k=0-000010. June 154 2h, Clock 265 fast, set right. 332 ExtTRA OBSERVATIONS OF MAGNETOMETERS, JuLy 11—Aveusrt 8, 1846. Gott BIFILAR BALANCE Gott. BIFILAR BALANCE Gott. a DECLINATION. Corrected. Corrected. ba DECLINATION. Corrected. Corrected. ae i.) he | Min. = t Min. | Se. Div. || Min. | Mic. Div. a. oh. Min 2 f Min. | Se. Diy. || Min. | Mic. Div. ad, oh. Min. July. July. Aug. 11 4 5 | 25 17-17 7 | 585-5 8 | 566-5] 25 6 0 | 25 10-04 2 | 574-8 3 | 414-1 6°20 || 45 | 10 15-24|| 12 | 587-4|| 13 | 568-1] 25 8 0 00-57 2 | 581-2 3 | 418-7 50 15 16-72 || 17 | 588-8|| 18 | 578-3 10 02-26 || 12 | 580-1 ]) 13 | 413-8 55 25 15-58) 27 | 570-7|| 28 | 608-5 25 9 0 | 25 01-92 2 | 559-2 3 | 398-2] 6 21 5 30 14-87 || 32 | 558-6}) 33 | 614-3] 25 10 0 | 24 54.72 2 | 573-5 3 | 308-2 10 35 13-29 || 37 | 571-7|| 38 | 603-4 5 | 25 00-99 7 | 560-0 8 | 306-1 20 | 40 13-46 || 42 | 575-6|| 43 | 599-4 12 03-81 || 12 | 552-3] 13 | 308-4] 6 22 0 45 12-75 || 47 | 574-7|| 48 | 595-2 15 03-34 || 17 | 553-0) 18 | 310-9 5 | 52 | 575-5|| 53 | 591-9 = — —_-— — —— 10 55 14-46 || 57 | 572-5|| 58 | 585-6] 29 4 0 | 25 16-80 2 | 575-0 3 | 451-0 15 1d) 5 0) 14.40|| 2 | 572-6 3 | 579-8 15 19-68 |} 17 | 595-2) 18 | 463-8 20 5 14-98 7 | 569-0 8 | 573-2 20 17-89 || 22 | 611-1] 23 | 460-5 25 15 12-48 || 17 | 564-1|| 18 | 559-9 25 19-17 || 27 | 607-7) 28 | 473-1 30 | 30 12-72 || 32 | 594.9|| 33 | 529-6 30, 16-92 || 32 | 590-3) 33 | 487-5 45 1 35 13-41 || 37 | 597-5 || 38 | 526-5 35 17-42 || 37 | 600-0) 38 | 497-5] 6 23 0 11 5 | 45 13-30 || 47 | 572-8 || 48 | 539-8 40 16-36 || 42 | 603-1 || 43 | 507-0 5 11 6] oO 13-05 2] 579-8|| 3 | 533-0 45 15-47 || 47 | 606-0] 48 | 511-7 30 | | oe 50 17-33 || 52 | 597-4) 53 | 521-5 40 13° 6 0 | 25 06-32 2 | 596-5 3 | 524-7 55 19-28 || 57 | 587-7] 58 | 536-4 50 15 07-47 || 17 | 598-3||' 18 | 527-1] 29 5 0 18-50 || 2 | 595-2] 3 | 554-4] 7 O 0 isi 76 0 14-80 2 | 592.9 3 | 547-4 10 18-84 |} 12 | 610-2] 13 | 584-6 15 5 12-78 7 | 576-0 8 | 545-1 25 12-51 || 27 | 607-2}| 28 | 628-5 30 | 10 07-00 || 12 | 565-5 || 13 | 570-0 35 13-70 || 37 | 618-2|| 38 | 638-1 50 15 02-08 || 17 | 577-2|| 18 | 575-1 40 13-12 || 42 | 615-4) 43 | 675-1 ao 0 20 | 25 00-10]) 22 | 578-3}| 23 | 560-6 50 11-24 | 52 | 624-9] 53 | 635-4 20 | 95 | 24 56-77|| 26 | 586.8|| 27 | 552-2] 29 6 0 14-78 || 2 | 614-0] 3 | 656-4] 7 2 0 30 55-73 || 32 | 593-7|| 33 | 537-8 5 09-42|| 7 | 610-3) 8 | 671-6] 7 3 0 35 56-50 || 37 | 590-1|| 38 | 529-0 10 02-87 || 12 | 614-0] 13 | 670-9] 7 4 0 40 56-30|| 42 | 597-4|| 43 | 517-8 15 05-77 || 17 | 610-2|| 18 | 681-0] 7 7 0 45 | 24 58-52)|) 47 | 601-3|| 48 | 506-0 21 | 25 02-28|| 22 | 609-8 | 23 | 702-6 32 50 | 25 03-04|| 52 | 595-8 || 53 | 499.9 25 | 24 59-88 || 27 | 583-2) 28 | 658-0] 7 8 0 Sys ¥e 0 11-34 2 | 570-4 3 | 499-6 30 57-89 || 32 | 584-5 || 33 | 606-5 30 10 03-43 | 12 | 566-1) 13 | 492-6 35 | 24 59-66|| 37 | 588-7] 38 | 584-4 40 20 05-99 || 22 | 573-5|| 23 | 481-8 40 | 25 01-99 || 42 | 588-8} 43 | 572-0 45 30 05-79 || 32 | 568-0|| 33 | 474-0 45 05-05 || 47 | 581-4 48 | 566-8 49 45 | 25 05.45|| 47 | 571-1|| 48 | 460-8 50 06-06 || 52 | 584-4] 53 | 562-7 50 13 9 | 30 | 24 59-50) 32 | 556-5 || 33 | 450-3 55 07-61 || 57 | 588-6 || 58 | 560-0 54 40 | 24 58-79|| 42 | 555-7|| 43 | 441-8] 29 7 0 07-20 2 | 590-1 3 | 552-2 55 13 10 0 | 25 02-19|| 2 | 542-5|| 3 | 427-3 10 09-15 || 12 | 575-1] 13 | 538-1] 7 9 0 10 | 25 01-72)| 12 | 545-3 |) 13 | 416-3 25 07-92 || 27 | 573-7 || 28 | 522.4 5 ——— ee 29 8 0 08-41 2 | 556-5 3 | 485-0 10 14 10 0 | 24 57-05 2 | 559-6 3 | 399-7 | aaa ae —> ———| 15 | 10 | 24 56-10) 12 | 561-1) 13 | 390-2] Aug. 25 | 20 | 24 57-64] 22 | 556-2|| 23 | 381-7] 1 8 0 | 25 05-45 || 2 | 565-0}| 3 | 401-0 35 35 | 24 51-32|| 37 | 562-4|| 38 | 399-7 45 14 18 0 | 25 14-01 2| 546-8|| 3 | 317-4 40 46-52 || 42 | 581-8] 43 | 388-6} 7 10 0 14 19 0 09-42 2 544-8 3 | 325-5 45 50-04 || 47 | 586-8 || 48 | 388-8 14 20 0 03-48 2| 549-1 Pee ya | 50 56-40 || 52 | 586-8 |) 53 | 392-6) 7 20 0 — 1 9 O | 24 59-95 2 | 570-6 3 | 386-5 10 20 10 0 | 24 59.83|| 2] 561-4|| 3 | 386-1 10 | 25 05-29] 12 | 570-3) 13 | 375-7 35 10 | 25 02-15 || 12 | 558-9|| 13 | 385-8 20 03-28 || 22 | 564-0|| 23 | 364-7] 7 22 0 —— —— — 30 | 25 03-37 || 32 | 562-2)| 33 | 352.4 10 24 8] O | 24 59-34 2 | 563-4 3 | 480-9 1 10 0 | 24 57-78 2} 549-8 3 | 349-0 35 | 10 | 25 02-15 |) 12 | 568-0|| 13 | 470-6 || ——|—_ || —— —— dee 0 20 03-37 || 22 | 561-8|} 23 | 464-2] 6 20 0 | 25 07-20 2 | 525-3 3 | 352-6] 8 2 0 24 10 0 04-17 2 | 564-3 3 | 410-1 15 06-16 | 17 | 482-7] 18 | 363-1 25 |_——__——_____|___ —— 20 05-55 || 22 | 490-6] 23 | 360-9 40 25 4] O}| 25 12.98 2 | 579-5 3 | 383-9 25 10-33 || 27 | 510-1 || 28 | 356-1 8 3] 10 | 20 10-27 || 22 | 561-0|| 23 | 397-1 30 13-81 || 32 | 508-2 | 33 | 357-0 30 | 30 10-06 | 32 | 560-7 !! 33. | 396.4 40 09-89! 42 | 480-5 | 43 | 361-61 8 4 0 Bir1Lar. k=0:000135. BaLance. k=0-:000010. | DECLINATION, | 25 25 10-43) 4 07-13] 07-40} 11-27) 14.67 | 16-82|) 07-00], 11-98 | / 10-13] 11-37] 12-38) 09-73 | 10-30 | 08-41 ]} 07-79 | 05-8 | 09.49 | 07-45 |) 08-65 |) AND MET. OBS, 1846. BIFILAR BALANCE BiriLar BALANcr tas: Mean DECLINATION. Corrected. Corrected. DECLINATION. Corrected. | Corrected. Min. | Sc. Diy. || Min. |Mic.Diy.f} d. h. || Min.] © 7 Min. | Se. Diy. |} Min. | Mic. Diy. Aug. | 57 | 590-8 || 58 | 476-3] 14 8 0 | 24 59-93 2 seta 3 | 431-0 2 | 586-6 3 | 477-5 40 52-94 || 42 | 560-3 || 43 | 433-5 7 | 579-3 8 | 477-9] 14 9 0 59-59 2) 554-1]) 3 | 419.1 17 | 579-4|| 18 | 476.8 30 | 24 59-34]) 32 | 544.7 | 33 | 363-3 27 | 572-5|| 28 | 489.2 45 | 25 05-96|| 47 | 529-3 || 48 | 317.2 2 | 573-6 3 | 475-9 50 06-17 || 52 | 523-5|| 53 | 310-3 32 | 569-7]) 33 | 454.9 5d | 25 03-34 || 57 | 524-1 1 58 | 307-5 2 | 562-4 3 | 436-0] 14 10 0 | 24 57-71 2 32-1|| 3 | 293.4 2 | 582-0 3 | 418-3 10 56:43 || 12 | 543-3 || 13 | 277-8 17 | 566-2)| 18 | 361.7 15 55-73 || 17 | 547-5 || 18 | 270-3 37 | 544-9] 38 | 362-0 = — 47 | 556-9]| 48 | 360-4] 15 10 0 | 24 57-31 2 | 566-3 3 | 365-2 2 | 551-2 3 | 360-2 10 | 24 57-98] 12 | 566-4|| 13 | 363-7 2 | 578-0 3 | 495-9] 16 18 0 | 25 11-03 2 | 522-5]| 3 | 262.6 12 | 582-9}) 13 | 505-3 55 18-08 || 57 | 517-6)! 58 | 270.3 37 | 575-8 || 38 | 514-8] 16 19 0 18-40 2) 513-8|| 3 | 274.2 2 | 574.9 3 | 510-1 5 18-67 7 | 512-9 8 | 275-1 2 | 539-5 3 | 353-0 15 18-30 || 17 915-9) 18 | 279-3 17 | 527-6]| 18 | 333-4 30 16-68 || 32 | 534-6|| 33 | 277.1 22 | 507-3 || 23 | 331-7 50 13-25 || 52 | 546-7 || 53 | 276-5 27 | 510-9} 28 | 336-0] 16 20 || O | 25 11.37 2 | 543-9 3 | 284.2 3 | 409-9 45 53-38 || 47 | 535-5|) 48 | 300-0] 17. 7 0 | 24 55-53 2 | 592-5 3 | 446-8 23 | 404-1 55 48-97 || 57 | 512-2}! 58 | 277-1 10 | 25 02-28]! 12 | 568-2)! 13 | 450.0 3 | 390-4] 12 11 0 44.53 2 | 546-7 3 | 278-0 20 04-61 || 22 | 545-4 /] 23 | 446.2 3 | 396-3 5 43-35 7 | 558-5 8 | 267-2 30 01-01 || 32 | 553-3}| 33 | 437-6 3 | 433-7 10 50-42} 12 | 551-8] 13 | 255-5717 8 0 04-31 2 | 560-1 3 | 412.4 3 172. f | 34 | 451-6 20 | 24 55-93 || 22 | 553-4|| 23 | 245-7] 22 10 0 | 25 16-08 2 | 533-7 3 | 206-2 3 | 443-9 30 | 25 03-74 || 32 | 539-6] 33 | 243.8 10 | 24 58-65 || 12 | 577-0|| 13 | 207-2 33 | 376-3 12 20 0| 25 11-75 2 | 538-0 3 | 343.2 20 | 25 02-79 22 572-5 || 23 | 199.6 43 | 350-2 30 09-15 || 32 | 548-3]] 33 | 201-7 : 40 10-50 | 42 | 534-6 || 43 | 348.2 [5 48 | 362-9 12 29 0 11-89 2| 507-11 3 | 380.4 40 06-27 | 42 | 529-6/| 43 | 218.1 45 | 25 03-11]} 47 | 528-8/] 48 | 238.5 30 13-12 || 32 | 524-4] 33 | 362.9 53 | 318-8 12 23 0 10-56 2 | 535.3 3 | 371.9 50 | 24 58-92] 52 | 535-7]! 53 | 260-8 22 11 0 54-28 2 | 557-4 3 | 279.7 58 | 318-7] 13. 4 0 | 25 09-69 2 | 554-6 3 | 498.6 15 58-99 || 17 | 549-5 || 18 | 289.7 3 | 337-0 30 10-00 | 32 | 556-0 : 8 | 345-6] 13 5 0 11-61 2 | 553-3 3 | 524.8] 24 10 0 | 25 01-96 2 | 548-4 3 | 325-1 13 | 350-6] 13 6 0 05-45 2 | 568-7 3 | 507-1] 24 11 || 13 | 24 42.84 18 | 351-1 15 42-41 || 17 | 538-0|| 18 | 228-0 13 18 0 | 25 12.35 2 | 550-5 3 | 205-9 20 45-11 || 22 | 548-8 |) 23 | 223.3 38 | 352-1 25 08-99 | 27 | 530-2] 28 | 200.3 25 50-75 || 27 | 535-9|) 28 | 212.6 48 | 350-8] 13 20 0 06-88 2 | 544-7 3 | 223.6 30 41-43 | 32 | 530-0|| 33 | 198-7 3 | 344-1 35 47-30 || 37 | 534-5 || 38 | 182.6 14 4 0 | 25 12-75 2 | 524.2 3 | 540-4 40 48-30 || 42 | 542-4]| 43 | 183-1 3 | 288-3 5 03-16 7 | 589-9 8 | 536-5 45 48-47 || 47 | 549-8 || 48 | 185-9 13 | 298-7 10 03-84 || 12 | 598-1]! 13 | 527-4 50 48-54 || 52 | 554-8 /] 53 | 187-4 38 | 323-1 15 08-05 | 17 | 595-5]) 18 | 522-4 55 49-34 || 57 | 556-3 || 58 | 192-3 3 | 363-8 20 12-15 || 22 | 592-8] 23 | 514-6] 24 12 0 52-64 2 | 557-4 3 | 196-0 13 | 361-2 25 . . 38 | 373-4 30 15-36) 32 | 562-5|| 33 | 533-3] 25 7 0 | 25 03-38 2 | 546-0 3 | 410-4 3 | 385-1 35 08-72 | 37 | 560-1}} 38 | 531-2 15 | 24 56-20]! 17 | 566-0|| 18 | 416-7 3 | 448-2 40 07-47 || 42 | 574.9]! 43 | 523.5 20 55-09 || 22 | 576-3)| 23 | 412-0 28 | 456-6 45 07-72|| 47 | 581-6) 48 | 515-6 30 55-19 || 32 | 577-2) 33 | 401-6 43 | 439-9 50 05-55 || 52 | 578-3 || 53 | 508-5 40 | 24 57-17}| 42 | 598-4|| 43 | 386-6 13 | 424-7] 14 5 0 07-84 2 | 571-7 3 | 491-3 45 | 25 00-71 || 47 | 582-7|| 48 | 388-8 33 | 433-8 15 07-37 || 17 | 555-9} 18 | 479.2 55 | 24 57-81] 57 | 569-8 || 58 | 386-5 31 412-7] 14 6 0 | 25 08-11 2 | 554-0 3 | 439-8] 25 8 O | 24 57-71 2 | 567-4'| 3 | 386-0 “Brrizar. k=0:000135. BALancEe. k=0-000010. 334 Extra OBSERVATIONS OF MAGNETOMETERS, AUGUST 25—SEPTEMBER 8, 1846. Gott. BIrILaR BALANCE Gott. BIFILAR BALANCE Gott. ‘ att a | DECLINATION. Gommacted. Gomenteds ta DECLINATION. Corrected: Ggertteal a) DECLINATION, I rt h. Min. 2 ¢ Min. | Se. Div. |} Min. | Mic. Diy. i h. Min. a [4 Min. | Se. Div. |} Min. | Mic. Diy. & h. Min. ug. ug. ept. 25 9 || O| 25 01-48|| 2] 554-7|| 3 | 366-1] 28 11 | 20 | 24 56-40]| 22 | 530-0|| 23 | 240-8 5 0 30 25 10 || 0 05-11] 2 | 553-7]) 3 | 357-6 25 54-35 || 27 | 532-0]) 28 | 248-2] 5 11] O =| = = = 30 52-60 || 32 | 536-7|| 33 | 261-2 | 30 27 8 || O| 25 01-63] 2 | 565-1) 3 | 410-5 35 51-14] 37 | 542-8]) 38 | 271-2 | 40 | 30 | 24 55-94] 32 | 545-4]! 33 | 448-4 40 51-79 || 42 | 547-6|| 43 | 277-8] 5 2] 0 | 40 51:70 || 42 | 538.0]! 43 | 499-6 45 52-53 || 47 | 549-6]| 48 | 279-0] 5 41] 0 45 40-76 || 47 | 554-4] 48 | 520.0 50 54.63 || 52 | 549-1]| 53 | 284.3 5 50 31-54 || 52 | 569-7|| 51 | 530-5 55 57-34 || 57 | 545-6] 58 | 294-0 10 53 26-50) 54 | 581-3]| 54 | 504.0] 28 12 | O 58-18|| 2] 544.3]| 3 | 298-3 15 | 55 30-07 || 57 | 579-9] 58 | 457-0 5 | 24 59-01|| 7 | 542-8] 8 | 303-9 20 27 9|| O 37-41] 2| 578-0] 3 | 421-6 32 | 25 00-74] 33 | 545-3]! 34 | 306.4 25 5 42-81 || 7 | 576-1|| 8 | 399.2} 28 12 | 35 | 25 00-80|] 37 | 545-1|| 38 | 307-9 30 10 49-03 || 12 | 563-1]} 13 | 388.3 =| — 35 | 20 54-89 || 22 | 546-4]) 23 | 371-9] 29 6 || O| 25 00-60|| 2] 590-3]) 3] 394-8] 5 5]) 1 | 30 50-92 32 | 533-4|) 33 | 360-1 25 | 25 01-24] 27 | 572-2]! 28 | 405-5 30 40 55-02 || 42 | 535-6]] 43 | 342.0 50 | 25 01-45 || 52 | 569-2|) 53 | 410-6 | 45 27 10 || oO 57-98 2] 524-7] 3 | 318-4] 29 7] O| 24 58-82]! 2] 576-3])/ 3 | 413-91 5 61) 0 10 | 25 00-31|) 12 | 528-6|| 13 | 296-6] 29 8 | 0 | 25 05-11]! 2] 562-3|| 3 | 399-1 10 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 || 0 | 25 02-55]) 2 | 594-5]! 3 | 301.7 iG) | 35 53-85 || 37 | 513-6]) 38 | 265-6 5 07-04|| 7 | 590-9|} 8 | 290-0 20 40 53-51|| 42 | 519-8]) 43 | 246-9 10 10-27 || 12 | 576-8]] 13 | 282.4 | 25 45 52-33] 47 | 514-4]] 48 | 208-5 15 11-24 || 17 | 565-2|| 18 | 274-0 | 30 50 | 24 56-87 || 52 | 507-2]| 53 | 164.4 26 11-32) 22 | 554-5|| 23 | 267-7 35 55 | 25 00-87 || 57 | 507-2]| 58 | 138-4 25 10-11 || 27 | 549-3|| 38 | 262-7 40 27 11] 0 04:17) 2 | 493-4] 3 | 128.3 30 09-19 || 32 | 544-4]] 33 | 262.4 45 5 04:34|| 7 | 499-6]| 8 | 131-3 =| = 50 10 03-30 | 12 | 495-6]| 13 | 122-2] Sept. | 55 15 04-21 | 17 | 492-3] 18 | 112-8] 3 18 || O| 25 12:51]| 2] 536-7|| 3] 304-5] 5 7] O | 20 | 25 04.05] 22 | 472-5}) 23 | 115-3 20 | 25 05-87|| 22 | 549-8]] 23 | 251-2 5 25 | 24 53-95 || 27 | 466-9] 28 | 127-2 40 | 25 04-58 || 42 | 554-8]] 43 | 260.4 10 | 30 40-39 | 32 | 491-2] 33 | 142-4] 3.19 | O| 24 58-42]| 2 | 559.4]] 3 | 257-8 115 | 35 32-25 || 37 | 552-2|| 38 | 139-4] 3 20 | O |} 25 02:03]/ 2 | 543-9] 3 | 273.7 20 || 36 32-2 || 39 | 569-1 322] oO 17-56 || 2 | 530-5|| 3 | 302-9 25 40 37-74 || 42 | 555-4) 43 | 128.2 20 16-79 || 22 | 537-9]] 23 | 320-3] 5 8] 0 | 45 42-71 | 47 | 536-0] 48 | 99-7 30 14-98 || 32 | 538-0|| 33 | 340-4] 5 9 || 55 50 | 45.91]| 52 | 536-1]| 53 | 76-3] 3 23 | 0] 25 14-50]| 2] 539-3]) 3] 3606] 5 10] 0 55 49.61 || 57 | 534-4|| 58 | 103-5 10 27 12 || 0 | 24 49-00]} 2] 541-5] 3 | 121-5] 4 9 || 55 | 24 58.74]| 57 | 554.0]| 58 | 379.7 | 15 en er i 410] 0 54:70|| 2 | 549-3]| 3 | 376-8 20 28 7 (|| 0 | 24 56-11]| 2 | 584-2] 3 | 462-6 5 50-36|| 7 | 559-8] 8 | 368-6 25 | 10 | 24 58-18) 12 | 574-7}| 13 | 459-8 10 49-34 || 12 | 579-5 || 13 | 356.3 | 30 | | 35 | 25 00-30|| 37 | 563-7|| 38 | 450-0 15 50.22 || 17 | 595-7]| 18 | 338-2 35 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 | 320-47 . 5) || 9 | 6 | 15-27 || 7 | 540-0] 8 | 239.1 30 | 25 06-86 || 32 | 579-7|] 33 | 313-1 25 10 | 19-82) 12 | 513-7]| 13 | 189-5 40 | 15 | 24-66 || 17 | 499-8) 18 | 135-8] 4 20 | 0 | 25 12-01] 2] 527-9] 3 | 3694] » 9) | “9 | 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 8 || 0 | 35 45-11 || 37 | 584-9]) 38 | 184-5 45 08-55 || 47 | 536-9|| 48 | 374-0 | 15 | 40 49-91 | 42 | 591-4|) 43 | 190-5] 4 21 | O 07-62|| 2 532-2|| 3 | 366-7 | 30 | 45 | 24 56-90] 47 | 581-5|] 48 | 199-2] 4 22] O 13-41]/ 2} 515-3]] 3 | 379-9 | 40 | 50 | 25 00-87 | 52 | 567-1]] 53 | 199-1 20 17-15 |; 22 | 515-4|| 23 | 394.3 | 45 55 03-94 || 57 | 551-3|] 58 | 198-1 40 13-88 || 42 | 515-2|| 43 | 393-1 50 28 11 | 0 00-87 || 2 | 557-2), 3 | 205-5] 423 | 0 15-04 || 2 | 517-6]] 3 | 415-1 | 55 | 5 | 03-09|| 7 | 545-6] 8 | 209-3 35 16:30 || 37 | 519-4|| 38 | 402-5] 8 9 || 0 | 10 03-70 | 12 | 530-3]) 13 | 221-1 50 14-94 || 52 | 528-8|| 53 | 392-3 10 | 25 00-28 | 15 01-34|| 17 | 523-11 18 | 229-81 5 of o 18-82] 2 | 521-6]| 3] 392-7] 8 10|| 0 | 24 59:66 BIFILAR. k=0°000135. BALANCE. k=0:000010. Aug. 27411». The balance needle has been vibrating the most of the evening. Aug. 284 10% 14m. Clock 15% fast, set right. ExTRA OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 5—22, 1846. 335 Gott. BIFILAR BALANCE Gott. BIFILAR BALANCE Grea. Mean DECLINATION. Corrected. Corrected. Eg DucLinaTion. Corrected. Corrected. in. |Mic. Div. a. bh. || Min.| © , Min. | Se. Div. || Min. |Mic.DivJ d. oh. || Min.] ° = 7 Min. | Se. Diy. || Min. | Mic. Div. Sept. 407-0 8 0 | 25 01-98 2 | 553-6 3 | 465-9] 21 8 || 20 | 24 37-53) 22 | 584.4]] 93 | 495-6 3 | 418-4] 10 9 | 40 | 25 03-25}| 42 | 538-3 |) 43 | 427-9 25 39-95 || 27 | 577-5] 28 | 506-2 473-1 50 | 24 59-88 || 52 | 545-3 |) 53 | 416-1 30 37-91 || 32 | 578-4] 33 | 478.8 10 10 0 | 25 01-65 2 | 543-1 3 | 404-6 35 37-26 || 37 | 555-4|| 38 | 404-8 40 37-56 || 42 | 576-8] 38 | 421-5 10 22 0 | 25 20-30 2) 534-1 3 | 341-2 45 39-14) 47 | 571-6] 48 | 419-2 15 17:86 || 17 | 535-9|| 18 | 358-5 50 35-66 | 52 | 579-0) 53 | 400-1 30 17-31 || 32 | 533-4|) 33 | 357-1 55 38-15] 57 | 564-4) 58 | 353-7 10 23 0 16-55 2 | 542-6 3 | 364-6] 21 9 0) 48-16 | 2 | 554-1 3 | 343-9 Lie. 2 0 17-58 2 | 563-3 3 | 452-5 5 | 24 55-53) 7 | 546.2 8 | 343-1 10 15-64 || 12 | 554-5 || 13 | 470-8 10 | 25 02-12] 12 | 536-2] 13 | 353-2 30 13-46 || 32 | 539-1|| 33 | 467-8 15 02-55 | 17 | 540-5 || 18 | 376-1 Mins 0 10-77 || 2 | 566-8 3 | 459-7 20 | 25 00-48 || 22 543-2 | 23 | 395-8 30 09-66 || 32 | 561-2] 33 | 470-2 25 | 24 55-26) 27 | 558-7]! 28 | 394.0 ll 4 0 | 25 12-01 2 | 537-0 3 | 477-4 30 53-98 | 32 | 551-71) 33 | 385-0 ll 6 0 | 24 43-69 2 | 589-2 3 | 741-9 35 | 24 55-53] 37 | 547-1] 38 | 378-5 5 32-28 7 | 585-3]| 6 | 748-0 45 | 25 01-34 | 47 | 551-8] 48 | 375-1 9 21-89 | 8 | 718-2] 21 10 0 02-32) 2 | 551-1 3 | 376-8 10 22-13 || 11 | 600-2 15 02-94 | 17 | 558-2] 18 | 375-5 12 25-33 || 14 | 605-1 || 13 | 614-1] 21 12 0 | 25 02-66] 2 | 543.4) 3 | 357-6 15 31-61 || 17 | 606-5 |) 18 | 583-9] 21 13 0 | 24 54-52] 2] 529.7 3 | 185-4 20 42-01|| 22 | 593-4|} 23 | 578-9 | 7 | 515-4] 8 | 183-0 25 43-76 || 27 | 593-1 |) 28 | 566-1 10 52-33 | 12 | 517-1] 13 | 198-6 30 | 24 53-74]| 32 | 5843)| 33 | 556-6 15 49-17 | 17 | 522-1] 18 | 233-6 35 | 25 00-27 || 37 | 552-8 || 38 | 564-1 20 47-62 | 22 | 529-8 || 23 | 248-8 40 | 24 58-02|| 42 | 547-1) 43 | 570-5 25 48-50 | 27 | 526-9] 28 | 251-8 45 52-77 || 47 | 554-7 || 48 | 561-8 30 49-84 | 32 | 522-7|| 33 | 251-8 50 52-35 || 52 | 566-6|| 53 | 549-7 40 48-70 | 42 | 532-9) 43 | 270-3 53 56-40 || 57 | 563-2)| 58 | 540-1] 21 14 0 52-33 2 | 532.4 3 | 279-7 0 oe 7 0 57-75 2 | 563-2 3 | 529-4] 21 15 0 58-22 2 | 531-7 3 | 304-6 20 | 24 56-27) 22 | 556-4 || 23 | 493-8] 21 16 0 47-08 2 | 522.0 3 | 217-8 11 8 0 | 25 03-77|) 2 | 550-8 3 | 444-7 30 43-11 || 32 | 509-7|| 33 97-3 11 9 | 50 02-91 || 52 | 556-4|| 53 | 289-6 40 45-85 | 42 | 525-7] 43 24.3 11 10 0 06-50 2 | 579-3 3 | 228-1 50 45-67 | 52 | 534-6 5 12-11 7 | 553-8 8 | 200-4] 21 17 0 46-08 2 | 525-4 3 | 141-5 10 | 25 03-55 || 12 | 560-2|| 13 | 195-6 30 56-07 || 32 | 527-1) 33 | 191-6 15 | 24 54-43 || 17 | 590-6|| 18 | 178-0] 21 18 0 | 24 55-12 2 | 518-7 3 | 119-4 20 | 25 03-27 |) 22 | 582.3]| 23 | 173-5] 21 20 0 | 25 11-98 2 | 505-8 3 | 133-6 25 12-28 || 27 | 552.5 || 28 | 183-7 15 07-69 || 17 | 496-6] 18 | 147-6 30 10-77 || 32 | 533-5 || 33 | 186-9 25 10-01 | 27 | 492-6) 28 | 218-5 35 07-34 || 37 | 529-3|| 38 | 182-5 35 09-29 | 37 | 479-9|| 38 | 235-7 40 04-61 || 42 | 536-2)! 43 | 186-5 40 11-91 | 42 | 482-6] 43 | 234-7 45 04-17 || 47 | 545-3 || 48 | 193-5 50 15-18 | 52 | 493-1] 53 | 205-9 50 07-07 || 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 13 20 0 | 25 07-81 2) 515-0 3 | 343-0 20 16-32 || 22 | 476-7|| 23 | 258-8 15 07-51 || 17 | 505-7 || 18 | 343.8 30 16-75 | 32 | 476-3) 33 | 273-6 35 11-74 || 37 | 520-1]| 38 | 343-7 40 17-58 | 42 | 469-1} 43 | 288-3 13) 21 0 16-43 2 | 522.6 3 | 332-4 || 50 14-44 | 52 | 476-6 || 53 | 286-3 13 22 0 13-44 2 | 533-6 3 | 326-5] 21 22 0 14-10 2 | 472-3 3 | 298-4 |_| ———_—|— /— 21,23 0 18-37 2 | 487-7 3 | 395-7 Le) Sey / O | 24 54-41 2) 551-0|| 3 | 477-7 15 17-19 | 17 | 498-1 || 18 | 454-0 20 41-39 || 22 | 554-3|| 23 | 457-2 25 18-63 | 27 | 496-5 || 98 | 502-5 30 | 24 55-63 || 32 | 564-0}! 33 | 440.3 35 15-11 | 37 | 505-4 38 | 524-1 19 8 0 | 25 02.39 2| 555-0] 3 | 413.4 45 14-87 | 47 | 516-5 | 48 | 523-8 ||} —__} ——____. ____ — 22 0 0 15-47 2 | 532-0 3 | 546-7 21 8 0 | 24 41-23 2 | 567-2 3 | 498-7 10 15-38 || 12 | 556-2} 13 | 574-6 5 35-07 fi 378-4 | 8 | 505-2 20 14-78 | 22 | 541-0) 23 | 633-9 10 32-95 || 12 | 592-6) 13 | 518-8 25 15-14 || 27 | 550-1 || 28 | 626.7 15 36-76 || 17 | 584-0] 18 | 507-2 30 14-91 | 32 | 542-9] 33 | 615-4 Birizar. k=0:000135. BALANCE. k=0-000010. 336 EXTRA OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 22, 1846. Mean DECLINATION. aoe ae Mean DECLINATION. Bam ee eek DECLINATION. Time. Time. Ca Min e Min. | Sc. Diy. |) Min. | Mic. Div. si h. Min a (s Min. | Se. Div. || Min. | Mic. Div. Min. a! 0 22 0 || 40 | 25 19-21|| 42 | 571-3|| 43 | 636-9] 22 25 | 25 04-78|| 25 | 646-6|| 25 | 668-3 4 | 25 24-89 || 45 18-84 || 47 | 563-8|| 48 | 653-9 27 04-28 || 27 | 642-7|| 27 | 634-5 5 20-69 | 50 15-61 | 52 | 577-7|| 53 | 692-1 29 07-34|| 29 | 640-0|| 29 | 617-2 6 15-58 55 14-35 || 57 | 581-9|| 58 | 678.7 30 07-02|| 30 | 635-9|| 30 | 615-8 7 17-15 22 1] Oo 15-41|| 2 | 591-2|) 3 | 664.6 32 06-53 || 32 | 629-1) 32 | 602.5 8 15-61 10 13-46 || 12 | 628-9] 13 | 693-3 34 08-95 || 34 | 627-3|) 34 | 596-2 9 16-57 15 08-99 | 17 | 680-0|| 18 | 779-9 35 09-96 || 35 | 626-5|) 35 | 599-3 10 19-44 19 | 695-2 37 07-78 || 37 | 620-2]| 37 | 612-5 11 22.44 || 21 | 682-5 40 03-57 || 40 | 606-5|| 40 | 599-2 12 25-28 | 20 02-79 || 22 | 677-9] 23 | 758-1 42 05-29] 42 | 599-1|| 42 | 581-9 15 19-91 25 | 25 07-13|| 26 | 708-0|| 28 | 776-5 45 05-08 || 47 | 595-1]) 48 | 577-3 | 17 14-60 30 | 24 57-76|| 32 | 735-2|| 33 | 698.4 50 06-26 || 52 | 607-0|| 53 | 574-4 20 06-59 35 | 25 04-31|| 35 | 707-0 55 08-59 || 57 | 605-8] 58 | 572-5 22 05-55 37 | 694-9|| 38 | 691-1] 22 41) O 11-74|| 2 | 624-1|| 3 | 607-5 25 02-45 40 11-10|| 42 | 715-0|| 43 | 655-3 10 | 596-2 27 07-54 | 45 17-63 || 47 | 692-5}| 48 | 703-2 11 11-44]| 11 | 662-6]) 11 | 589.2 30 10-63 49 | 683-9 12 19-51|| 12 | 668-9 35 | 25 04.44 | 50 09-56 || 52 | 676-5|| 53 | 644-7 13 25-56|| 13 | 660-9|| 13 | 612-9 40 | 24 58.99 | 55 07-17 || 57 | 645-5 || 58 | 661-8 14 24.66 || 14 | 644-5 || 14 | 644-8 45 | 25 10-09 22 2] 0 06-86|| 2 | 641-9|| 3 | 650-9 15 17-42|| 15 | 637-4|| 15 | 666-8 5 01-78|| 7 | 652-5|| 8 | 629-8 16 11-03) 16 | 644-4|) 16 | 671-4 50 04-58 10 14.33 || 12 | 658-0]} 13 | 716-8 17 11-30 || 17 | 670-8]| 17 | 672-4 15 05-13 || 17 | 672-2|| 18 | 657-6 18 26-97 || 18 | 675-3|| 18 | 674-5 20 17-36 || 22 | 663-7|| 23 | 759-4 19 31-28 || 19 | 651-1|/ 19 | 680-0 55 | 25 01-27 25 05-45 || 27 | 645-1|| 28 | 673-0 20 32-69 || 20 | 640-0] 20 | 689.4 56 | 24 55-70 30 17-12|| 32 | 671-7 21 30-87 || 21 | 639-8] 21 | 714-1 35 09-56 || 36 | 726-6|) 36 | 817-1 22 25-29 || 22 | 626-5|| 22 | 747-0 0 | 24 45.40 37 | 700-0]] 38 | 785-4 23 12-72] 23 | 632-6]| 23 | 767-8 39 | 704-0 24 | 25 03-20] 24 | 635-8] 24 | 775-4 40 03-40 || 41 | 706-0] 42 | 732.9 25 | 24 55-56|| 25 | 649-1] 25 | 772-0 | 4 | 25 24.49 42 14-87 || 43 | 683-9]] 44 | 761-4 26 | 24 54-99|| 26 | 659-3] 26 | 766-0 5 37-33 44 02-62 || 45 | 678-9|| 46 | 704-0 27 | 24 58-72|| 27 | 658.4|| 27 | 756-4 6 48-49 45 01-02) 47 | 689-5 28 | 25 02-62|| 28 | 650-5 || 28 | 758-2 i 46-58 47 04-17 |] 48 | 695-4|] 48 | 701-1 29 04-17 || 29 | 655-4 || 29 | 763-1 8 47-59 49 | 700-0 30 07-24 || 30 | 658-5 |) 30 | 770-3 9 45-30 50 | 25 06-39 50 | 731-3 31 09-86 || 31 | 659-9]) 31 | 774-3 | 10 42.61 51 | 704-0] 51 | 733-0 32 13-72 || 32 | 652-4|| 32 | 771-9 11 38-69 52 | 24 59-76|| 52 | 704-0] 53 | 688-4 33 13-90 || 33 | 639-5 || 33 | 763-0 12 36-69 | 55 | 25 01-49|| 54 | 708-0|| 55 | 702-0 34 16-35 || 34 | 630-6|| 34 | 760-0 13 36-00 | 56 | 708-0] 56 | 591-6 35 15-81|| 35 | 618-9] 35 | 748-1 14 36-37 | 58 08-31 || 58 | 690-6|| 58 | 657-2 36 13-72|] 36 | 614-1]] 36 | 743-1 15 32.89 | 59 | 680-5 37 10-16 || 37 | 612-2] 37 | 737-2 16 27-05 22 3/1 0 01-14|) 0 | 668-9]) 0 | 684-0 38 02-52|| 38 | 614-0|| 38 | 728-8 17 19.37 1 | 658-9 39 02-89 || 39 | 620-2|| 39 | 718-8 hats 13-76 | 2 00-53|) 2 | 661-4|) 2 | 629-5 40 03-37 | 40 | 628-6]| 40 | 713-9 19 14-77 3 | 669-0|| 3 | 603-0 41 03-37 || 41 | 632-3! 41 | 715-1 20 15-71 5 | 13-66|| 5 | 674-9|| 5 | 564-6 45 14-33 || 45 | 639-7|| 45 | 754-8 21 15-64 7 19-84|| 7 | 673-8|| 7 | 596-8 50 11-64|| 50 | 621-3]) 50 | 757-6 22 14-50 8 | 672-4|| 8 | 533-8 53 13-96 || 53 | 665-7 || 53 | 762-8 23 13-99 9 | 12-45|| 9 | 669-6) 9 | 559-4 54 | 694-0 24 15-64 10 11-10|| 10 | 666-5|| 10 | 663-1 55 33-70 || 55 | 700-0|| 55 | 750-5 | 25 14.23 12 08-88 || 12 | 673-4|| 12 | 685-4 56 47-42|| 56 | 680-0|| 56 | 755-5 26 12-85 | 14 09-05 || 14 | 686-8 || 14 | 700-0 563 51-11 27 23-88 | 15 | 09-62] 15 | 686-4|| 15 | 704-2 57 36-59 || 57 | 656-9|| 57 | 757-2 28 17-58 | 17 00-98 || 17 | 672-2|| 17 | 677-8 58 23-54 || 58 | 666-8 || 58 | 774-2 29 21-59 18 | 649-9 59 21-93 || 59 | 689-7 | 59 | 773-9 30 20-42 | 19 02-99 || 19 | 668-0|| 19 | 620-6] 22 5 || O 22.20) 0 | 686-5]| 0 | 763-0 31 19-41 | 20 07-96 || 20 | 667-7|| 20 | 596-7 1 21-12]) 1 | 679-8] 1 | 736-6 32 15-56 22 14-33 || 22 | 662-0|| 22 | 608-9 2 23-54|| 2] 669-8] 2 | 729-2 33 14-58 | 24 09-89! 24 | 650-0!) 24 | 662-4 3 24.39! 3 | 677-411 3 | 731-3 __ | 34 19-48 BaLanceE. k=0-000010. BIFitar. k=0:000135. into view at 52™ 10s, Sept. 224 1» 26m, Bifilar magnet out of the field of the reading telescope ; highest estimated reading perhaps 740 se. div. Sept. 22454 46m, The bifilar magnet went rapidly out of sight ; highest estimated reading perhaps 760 sc. div. about 51™, The scale came ; a DaILy OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 22, 1846. BALANCE Corrected. BIFILAR Corrected. in. | Sc. Diy. |} Min. | Mic. Diy. 724-9 704-4 696-0 689-4 4 | 681-9 5 | 666-7 6 | 651-5 7 8 NOue 632-6 613-8 9 | 600-1) 9 10 | 596-2] 10 11 | 596-9 12 | 602-8} 12 15 | 621-2] 15 17 | 638-3 || 17 20 | 644.2] 20 22 | 632-9] 22 25 | 613-1] 25 27 | 615-9 || 27 30 | 599-2 || 30 675-2 662-8 675-8 729-3 758-3 773-2 DECLINATION. BIFILAR Corrected. BALANCE Corrected. ° , 25 19-10 16-06 07-25 06-73 05-96 50-38 41-43 31-54 25-36 24-18 28:38 40-29 51-16 51-90 55-70 57-08 57-51 08-14 11-57 20-06 26-87 24-55 30-91 39-35 50-37 52-90 43-79 27-24 15-94 09-89 05-69 58-05 53-67 51-99 51-91 53-17 56-90 59-26 3 04-71 01-98 59-16 57-71 54-18 46-90 43-65 43-55 45-69 41-50 41.23 37-46 35-42 Se. Div. 643-2 634-9 643-8 664-0 663-3 652-5 633-5 617-0 588-3 563-3 558-4 557-8 557-3 552-1 542.4 533-5 526-7 525-4 526-6 521-7 522.7 512-6 481-6 454.9 448.6 446-9 451-4 463-6 370-0 of field) Min. Mice. Div. ° DECLINATION. 24 34-20) , BIFILAR Corrected. | . | Se. Div. 517-2 | 510-1 | 513-2 514-3 | 525-7 | 534.9 | 526:8 | 530-2 | 536-9 || 4 535-6 | 522.3 517-2 516-0 516-5 511-7 507-0 503-1 504-6 511-3 513-1 514-3 514.5 Gailey, 512.6 514-2 515-0 515-1 515-4 515-4 514-6 510-9 506-4 503-1 502-1 499-6 494.9 490-7 486-9 485.2 484.6 482-6 480-9 479-4 477-8 475-1 473-5 463-3 439-9 432.9 435-1 430-6 429.5 442.1 464-0 479-4 492-4 495-9 490-8 457-9 449-7 337 BALANCE Corrected. Mie. Div, BIFILAR. k=0:000135. Sept. 224 7h 3m 205, The bifilar scale w bably be less than 300 sc. div. MAG. AND MET. obs. 1846. BALANCE. k=0:000010. ent out of sight. The force was least perhaps about 7™, when the estimated scale reading would pro- 4a 338 ExTRA OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 22—OcTOBER 8, 1846. Gott. || Birmar || Bavance Gott. BIFILAR BALANCE Mean | DecuINation. Corrected. Corrected. Mean DECLINATION, Corrected. Corrected. Time. | Time. dad. oh |) ; f. | Min. | Sc. Div. || Min. |Mic.Div.} 4. h. a 7, Min. | Sc. Div. | Min. | Mic. Div, Sept. | | | Sept. 22 9 || 15 | 24 47-69] 17 | 440-7|| 18 |-33-3] 28 9 25 01-95|| 2 | 535-3] 3 | 359-9 i 50-51 | 22 | 432-8 23 |—47-6] 28 10 02:01|| 2 | 547-1]| 3 | 352-6 | 53-71 || 27 | 414-7|| 28 |- 64-3 = —— 55-09 || 32 | 395-2|| 33 |—83-7] 30 8 25 00-17|| 2 | 552-5] 3 | 344-3 57-64 | 37 | 372-0] 38 |-116-5] 30 9 24 54.41|| 2) 557-5|| 3 | 336-5 54-95 | (out jof field) 43 135-2] 30 10 25 01-95) 2 | 546-2] 3 | 351-3 54-12 | | 48 |-105-7 2 tsa) 51-32 | | 53 |—68-4] Oct. | 47-35 | | 58 |—71-1] 1 8 24 49:77|| 2 | 545-7]| 3 22 10 || 47-59 4 | 374. 3 |—21-6 24 58-38 || 32 | 550-8 || 33 | 22-84 || (out lof field)) 8 |—60-4] 1 10 25 03-85 || 2 | 549-8] 3 24 4.91} EI oo po Je I 23 57-51| rai | 24 48-30]| 2 | 555-7]; 3 i 53-18 123] — 60-9 55-76 || 17 | 545-1] 18 i 57-35 57-58 || 42 | 546-8) 43 | 56-88 143/—77-8] 2 8 57-24|| 2 | 636-9] 3 51-43 | 2 10 53-52|| 2 | 539-7] 3 51-38 | 163|-106-3 51-86 || 12 | 546-6] 13 i 57-25 || (out lof field) 173-144-6 50-65 || 22 | 541-3] 23 55-09 48.45 || 32\| 534.4 |) 33 23 59-17 46:31 || 42 | 535-1]) 43 20 | 515-8|| 20 |-198-8 | 46-34 || 52 | 538-0] 53 | 22 | 502-9|| 22 |-287-8] 2 11 46-19 || 2 | 539-4] 3 | 24 25-02] 24 | 476-9] 24 |-356.3 48-23 || 12 | 527-3] 13 | 36-65 || 26 | 440-3]|| 26 |-361-3 48-23 || 22 | 527-1]) 23 \ 45-60 || 28 | 440-4|) 28 296.8 = —_——_ — 49-41] 30 | 476-1|| 31 |-164-8] 7 7 24 53.58|| 2] 549-8] 3 46-95 || 33 | 505-7|| 334)—98.3 50-08 || 12 | 553-5 || 13 39:72|| 35 | 511-2)) 35 |-114.3 55-83 || 22 | 546-4 || 23 41-57 || 37 | 506-2|) 37 |-124-3] 7 8 56:70|| 2 | 525-8] 3 | 47-62 | 39 | 518-2) 39 120.3 30-60 || 9 | 538-9 i 49-64] 41 | 513-2]] 41 |—72.8 33-37 || 12 | 541-4|| 13 | 47-82|| 43 | 518-4 || 43 |—61-8 34-97 16 49-37 || 45 | 523-2] 45 |—52.3 17 | 555-8|| 18 49-95 || 47 | 525-0) 47 |—32.3 19 | 560-1 50-62 | 49 | 520-9) 49 |—18-3 38-71 || 22 | 567-2|| 23 | 51-96 || 52 | 519-2] 53 |— 0-8 24 49.27 || 27 | 563.3 || 28 | 54-36 || 57 | 517-4|) 58 |4+ 2.7 25 04-08 || 32 | 543.0]| 33 22 11 | 24 55-29] 2 504-2]| 3 |—21.3 15-17 || 37 | 502.9|| 38 25 00-50] 7} 513-9] 8 |— 9-3 39 | 499.3 || 03-43 | 12 | 517-2] 13 |— 5-4 25 09-46 || 41 | 495.7 05-96 || 17 | 512-2] 18 |—28-0 42 | 497-0} 43 04-98 || 22 | 516-9|| 23 |—15:3 24 44.73|| 44 | 505-8 | 43-82 || 47 | 525.9|) 48 22 18 | 18-47 || 2 | 540-6] 3 |+210-4 44-12|| 49 | 534.6 | 10-20 || 22 | 543-8 |) 23 | 222.2 44-90 || 52 | 537-0]) 53 22, 19 | 03-301 7 | 546-3]| 8 | 263-3 43.45 || 57 | 537-4]) 58 22 20 | 25 02-42] 2 | 536-5]) 3] 301-1] 7 9 | 50-51|} 2] 530-5|| 3 a — | 51-46|| 7 | 530.8] 8 24 8 | | 24 52-571 2] 571-3) 3 | 344-6 51-02 || 12 | 538.2]| 13 | 25 00-10 | 12 | 554-1] 13 | 351-9 52-33 || 17 | 536-7 |] 18 | 24 58-42) 27 | 547-3|| 28 | 355-6 54-41 || 32 | 542.4 |) 33 24 9 | 25 04-68] 2 | 549-1) 3 | 355-3 56-01 || 47 | 524-1 || 48 24 10 25 00-40|} 2 | 548-0] 3 | 360-5] 7 10 55-53] 2 | 524.0]) 3 ~t | ——|—_|__|-— 24 56-03 || 17 | 537-9] 18 28) 7 24 56-23]| 2] 581-4) 3 | 350-7 52-57 | 12 | 563-8] 13 | 348-4] 7 18 24 50-08|| 2] 558-4]) 3 51-39 || 22 | 567-4|| 23 | 344.9 24 58-82|| 7 | 477-2]| 8 | 30 | 24 54-43) 32 | 565-0 | 33 | 345-1 | 25 04-53 || 12 | 488-5 |] 13 28 8 | 25 00-94} 2] 547-0] 3 | 358-8 12-45 || 17 | 492-5 || 18 BirinarR. k=0:000135. BALANCE. k=0-000010. DECLINATION. Min.) 09 7 20 | 25 11-30 25 12-92 30 07-60 35 08-34 40 11-71 45 13-32 50 20-05 55 20-32 0 17-15 5 13-49 | 10 10-47 45 02-22 0 06-32 0 06-56 10 09-08 0 09-62 0 13-29 30 17-42 0 21-39 0 20-42 15 20-85 20 23.41 25 27-31 30 21-83 35 18-84 40 23-78 45 18-34 50 16-62 55 13-56 0 21-46 2 16-18 4 10-27 5 08-61 6 06-79 7 00-77 8 03-60 9 06-86 10 09-26 vd 12.25 12 18-63 14 09-44 15 03:37 16 04-10 17 03-97 18 04-58 19 08-18 20 09-76 21 06-36 22 | 25 01-01 23 | 24 49-62 224 9b 35m, The bifilar scale again went out of sight, it just came into sight at 10 4™, and did not reappear again till 10 20”. Extra OPSERVATIONS OF MAGNETOMETERS, OcTOBER 8—NOVEMBER 17, 1846. 339 BIrILar BALANCE Gott. BIFILAR BALANCE Gott. BIFILAR v Gorrceted: Cneeted! ween DECLINATION. Corrected. Corrected. Mean DECLINATION. Corrected. eee. ime. Time. Min, | Se. Div. || Min. |Mic. Div. rs - Min.} 2° ¢ Min. | Se. Diy. |} Min. |Mic. Div. a Pas Min.| ° ¢ Min, | Se. Div. || atin. {Mic. Div. ct. ct. 22 | 474-4|| 23 -120-1] 8 3 || 24) 24 46-33]| 24 | 638-4) 24 | 700-4] 9 19 | 10 | 25 16-95}! 12 | 535-0]| 13 | 147.3 27 | 473-7|| 28 |-161-3 25 47-42 || 25 | 644-0]| 25 | 681-4 40 18-77 || 42 | 533-8 || 43 | 174-0 82 | 481-7|| 33 178-6 26 48-70 || 26 | 647-7|| 26 | 664-1 9 20 0 11-98 2 | 534-5 3 | 189-0 37 | 464-5 || 38 |-147.7 27 53-47 || 27 | 646-7 || 27 | 666-0 42 | 462.2|| 43 |—79-3 29 | 24 56-97 || 28 } 647-3]| 28 | 669-9] 10 4 0 | 25 15-27 2 | 551-1 3 | 578-7 47 | 488-3 | 48 |— 45-3 30 | 25 01-04}) 30 | 645-5/| 30 | 662-3 20 13-63 || 22 | 552-3 || 23 | 550-6 52 | 504-6) 53 |—34-9 32 | 641-1|| 32 | 664-1] 10 5 0 11-66 2 | 555-6} 3 | 522-0 57 | 494.9] 58 —34.9 35 04:78 || 37 | 654-9|| 38 | 766-8] 10 6 0 04-91) 2 | 544-1 3 | 432-1 2 | 509-6 3 |-49-3 40 15-91 || 42 | 647-0]} 43 | 805-1} - = : poe 7 | 508-3 a | || 45 11-64 || 47 | 630-4|| 48 | 774.3] 13 7 0 | 24 53-95 2 | 565-3 3 | 357-6 12 | 509-0|} 13 |+10-9 50 | 25 07-17 || 52 | 603.4|| 53 | 735-1 10 | 24 56-10|) 12 | 560-4] 13 | 358-6 47 | 525-9|| 48 4163-7 55 | 24 57-81 || 57 | 617-3|| 58 | 636-7] 13 8 0 | 25 02-66 2 | 547-2 3 | 358-7 2 | 506-0 3 | 189-8} 8 4 0 | 25 14-71 2 | 610-1 3 | 666-6 — 2 | 533-7 3 | 295-9 5 20-32 7 | 593-4 8 | 717-9] 22 6 0 | 24 47-66) 2] 537-6] 3 | 395-6 12 | 535-6] 13 | 313-1 10 07-20 || 12 | 588-7 || 13 | 682-4 5 38-80 || 7 | 543-1] 8 | 383-1 12) | 537-4 3 | 331-3 15 08-85 | 17 | 594-7|| 18 | 642-1 10 34-63 || 12 | 569-2) 13 | 369-3 pa 540-8 | 3 | 342.6 20 11-84 || 22 | 583-2|| 23 | 631-9 15 39-38 || 17 | 579-4) 18 | 365-9 82 | 534-3 || 33 | 471-8 25 10-83 || 27 | 571-5|| 28 | 606-9 20 46-08 || 22 | 573-7} 23 | 365-3 2} 500-9 3 440-4 30 11-77 || 32 | 568-1} 33 | 606-1 30 55-29 | 32 | 555-3) 33 | 363-0 2 | 565-1 3 | 516-4 40 17-91 | 42 | 572-1)| 43 | 640-7 45 52-24 || 47 | 527-2]! 48 | 376-4 “17 | 566-5) 18 | 535.8 45 08-80 || 47 | 577-6|| 48 | 621-5] 22 7 0 | 24 53-00 2) 534.4 3 | 375-7 | 22 | 593-0] 23 | 549-5 55 14-40) 57 | 571-6|| 58 | 619-4 30 | 25 00-60) 32 | 538-5 || 33 | 360.4 | 24 | 591-4 8 5 0 16-55 2 | 590-9 3 | 707-2} 22 8 0 02-84 | 2 | 541-7 3 | 360-6 27 | 590-9|| 28 | 578-1 5 07-79|| 7 | 591-9|| 8 | 700-4} 22 9 || 45 02-15 || 47 | 548-7|| 48 | 259.9 32 | 619-9|| 33 | 597-7 10 01-38 || 12 | 569-5|| 13 | 629.4 50 02-28 | 52 | 551-7] 53 | 259-4 | 34 | 621-8 15 00-47 || 17 | 559-6} 18 | 596-0] 22 10 0 03-70 | 2) 555-6 3 | 266-1 37 | 628-1] 37 | 601-7 20 01-58 | 22 | 548.6}) 23 | 584-5 —|——'|—_- 39 | 621.7 25 00-17 || 27 | 554-9]| 28 | 585-2] 24 8 | O |} 24 51-52 2 | 566-2 3 | 322-7 42 | 622.8|| 43 | 644-1 30 | 25 02-19|| 32 | 553-4]| 33 | 618-9 10 | 24 54-75 || 12 | 581-9}| 13 | 315-9 44 | 675-9 40 | 24 48-43 || 42 | 544.9|) 43 | 614.4] 24 9 0 | 24 59-46) 21 550-4 3 | 319-2 47 | 641-0|| 48 | 705-0 45 49-91 || 47 | 541-3]! 48 | 578-6] 24 10 0 | 25 03-20 2 | 552-7 3 | 318-8 49 | 641-7 50 50-38 || 52 | 540-5|| 53 | 570-8 _| — | 52 | 643-6]| 53 | 738-6 55 47-56 || 57 | 554-4|| 58 | 550-4] Nov. 54 | 649-2 8 6 0 51-59 2 | 546-0 3 | 5444] 7 8 OQ | 25 00-74 2 | 540-1 3 | 334-9 56 | 659.9 5 51-59 7 | 545-5 8 | 545-6 15 | 24 56-60] 17 | 536-4]) 18 | 348-1 57 | 669-5 || 58 | 722-6 10 48-83 | 12 | 547-3]| 13 | 542-7 | 40 56-61 || 42 | 531-6] 43 | 339-0 59 | 683-1 15 45-89 || 17 | 567-0|| 18 | 519-9} 7 9 || 50 46-32) 52 | 518-6] 53 | 267-9 0 | 763-2 20 53-54 || 22 | 561-7 || 23 | 510-1 55 46-11] 57 | 517-4] 58 | 256-5 1 | 684-8 | 25 57-84 | 27 | 545-3]) 28 | 509-7] 7 10 0 46-68 2 | 520-6|| 3 | 251-6 3 | 680-1 3 | 831-8 30 55-26 || 32 | 539-0|| 33 | 502-6 10 49-75 || 12 | 515-0} 13 | 246.8 4 | 684-7|| 4 | 843-0 41 55:76 || 42 | 547-9]! 43 | 478-0 =| | 5 | 692-9|| 5 | 837-6 50 | 24 58-49 || 52 | 542-3]] 53 | 477-4117 6 0 | 25 13-30 2 | 564-3 3 | 286-3 6 | 699-0) 6 | 831-9} 8 7 0 | 25 02-01 2 | 536-9 3 | 472-6 30 37-95 || 32 | 544-8 || 33 | 457-9 7 | 695-0|| 7 | 786-9] 8 8 0 06-21 2 | 532-1 3 | 429.2 aio 37-64 | 37 | 626-9 8 | 693-3 8 | 752-1 10 03-94 || 12 | 546-5]! 13 | 402.4 37 31-82 | 38 | 655-9) 38 | 673-5 9 | 680-5 9 | 717-5 20 08-82 | 22 | 528-7|| 23 | 402-3} 39 27-17 || 39 | 662-2 10 | 686-3] 10 | 729.7 25 04-04 || 27 | 532-4]/ 28 | 395-4 40 | 646-4) 40 | 704-4 11 | 696-3 || 11 | 732-6 35 03-77 || 37 | 534-8 || 38 | 390-7 41 21-53 | 41 | 620-2 12 | 696-8 |) 12 | 743-8 50 02-22 || 52 | 539-8]! 53 | 382-4 42 | 622-7) 42 | 688-1 | 13 | 690-3] 13 | 774-9} 8 9 0 03-13 2 | 545-4 3 | 375-5 43 16-90 || 43 | 625-0 14 | 681-5|| 14 | 791-7 30 05-45 || 32 | 534-4]) 33 | 352-7 44 | 620-9 || 44 | 685-2 | 15 | 681-3] 15 | 781-6} 8 10 0 05-18 2 | 538-1 3 | 344-1 | 45 | 16-77 || 45 | 626-0 ir | 682.0] 17 | 74 Ee Bae te | 47| 194a| a7 | 669 : : Oi | F 39-8 || 47 ; 18 | 657-4| 18 | 7315] ° ©| 0] 25 1067) 2 | s45:5]) 2 | s82-7| 48| 20.85] 48 | 6880| a3 | oss 19 | 688-4|| 19 | 711-4 i e ee 4 . 5 . 20 | 674.6|| 20 | 705.0) 9 19) 9) O75) 2) 550-1) 3 | 329-5 50 | eel su eer al\ so | e953 21 | 653-4] 21 | 717-9 51 19-78 | 51 | 648-8] 51 | 697-1 22 | 631-0] 22 | 729-6] 9 18 0 | 25 04-64 2 | 558-5 3 95-9 | 52 | 18-16 || 52 | 639-3 || 52 | 698-6 23 | 626-2]| 23 | 721-2] 9 19 0 16-72 2 | 539-5 3 | 138-0 53 17-60 || 53 | 636-0! 53 | 708-7 BirinarR. k=0-000135. BaLANcE. k=0:000010. 340 Extra OBSERVATIONS OF MAGNETOMETERS, NOVEMBER 17—26, 1846. Gott. Mean DECLINATION. Time. BiriLar BALANCE Corrected. Corrected. BIFILAR BALANCE | DECLINATION. || (Corrected. Corrected. DECLINATION, “ U Sc. Div. || Min. |Mie. Div. a. . in. . | Se. Diy. || Min, |Mic. Diy. Min.} °. * ov. ; 25 15-59 636-9 714-4] 17 7 25 29-06 627-7 8 | 25 06-12 13-72 619-0 716-9 27-59 593-1 3 | 765-9 11-61 607-4 721-0 d 23-81 10 07-67 08-58 | 603-4 23-21 625-2 763-4 06-07 611-2 740-1 5 22-40 || 36 | 631-4 12 04-55 05-11 621-1 756-8 b 20-40 || < 637-3 765-2 05-79 634-2 778-9 18-23 639-4 777-6 14 04-68 661-5 797-6 18-90 649-9 786-2 16 04-41 02-75 652-7 811-7 12-22 665-4 787-3 02-12 666-8 823-4 11-77 672-9 782-0 00-40 663-1 844-8 11-71 685-0 778-2 22 02-52 58-92 | 669-8 847-8 13-05 688-0 779-9 24 05-60 57-31 679-3 859-4 4 | 692-0 776-9 26 07-34 58-55 689-6 869-6 08-75 702-0 30 04-55 59-59 698-9 877-3 ) | 704-0 761-4 35 05-32 710- 883-0 10-28 706-0 40 | 25 00-28 00-74 of field) 891-6 695-0 786-4 45 | 24 57-64 894.3 10-36 691-0 50 55-15 08-95 899-9 692-0 780-4 55 56-16 08-68 684-0 901-7 12-15 696-0 0 54-41 04-04 656-5 890.4 695-0 787-3 5 54-89 01-05 651-0 873-0 : 698-0 10 54-79 01-11 3 | 656-6 864-7 704-0 792-6 20 | 24 59-39 04-01 649-2 847-9 707-0 30 | 25 02-01 05-69 652-2 825-2 3 | 695-0 3 | 797-5 45 01-05 16:19 667-5 808-8 : 677-0 0 00-74 09-56 681-0 796-8 674-0 “S$ |—_— _— |. ——— 13-32 || 2 681-7 801-5 686-0 0 | 25 08-25 14-51 693-2 801-2 682-0 10 18-70 18-40 710- 807-4 674-0 15 14-23 21-56 684-0 814-4 671-0 20 07-20 27-01 666-1 812-9 657-0 25 08-34 30-04 659-6 810-9 648-5 30 13-05 30-38 642-7 799-5 648-9 35 15-41 29-66 637-2 790-3 : 647-0 40 17-26 27-84 643-2 786-9 650-4 45 15-81 Biritar. 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. BIF1 D Corrected. || Corrected, | Mean || Ductxamion. | Corrected, || Comectea, | Mean | Dzcuaxarron, | QuvZAn | Batance Time. Time. Min. | Sc. Div. |} Min. | Mic. Div.f 4. h. |} Min. ou im Min.}| Se. Diy.}| Min. | Mic. Diy. d. ih. |} Min. = u Min. | Se. Diy. |] Min. | Mic. Diy. Noy. Noy. 8 | 646-6 26 4 || 50 | 25 10-80) 52 | 564-8} 53 | 394-7] 26 20 || 30 | 25 06.32|| 32 | 547-7] 33 | 288.9 9 | 645-6] 91] 801-0] 26 5 0 14-91 2 568-7|| 3 | 402.8] 26 22 0 08-18 2) 553-2) 3 | 303-5 10 | 648-2 15 08-14) 17 | 554-1]} 18 | 431-2 — |__| eal 11 | 648-6] 11 | 803-5 30 07-71 | 32 | 559-7 || 33 | 426-1] Dee. 12 | 649-9 26 6 0 11-77} 2] 596-2|)' 3] 557-1] 9 8 0 | 25 05-65) 2] 561-6] 3 | 278-8 13 | 651-3|/ 13 | 792-1 7 | 598-3|| 8 | 576-91 9 9 | 15 | 25 05.11|} 17 | 549-1]] 18 293-7 14 | 654-7|| 15 | 789-5 10 14-50 |} 12 | 601-2|/ 13 | 573-4} 9 10 0 | 24 40-47|| 2 560-5] 3 | 302.2 17 | 782-3 15 26-87 || 17 | 582-2}! 18 | 640-5 5 41-70|| 7.) 558-8|| 8 | 293.0 19 | 667-1]| 20 | 803-2 20 20-69 || 22 | 590-5 || 23 | 682.1 10 43-62: 12 | 558-8|| 13 | 299.5 21 | 653-9 25 20-72 || 27 | 577-6 || 28 | 688.0 eaerel 23 | 655-1|| 23 | 819-0 30 23-24 || 32 | 563-1] 33 | 691.7] 23 6 0 | 24 58-60|| 2] 552-8|| 3 | 340.5 25 | 658-4 || 26 | 818-3 35 17-73 || 37 | 584-7}! 38 | 714.2 30 47-76 || 32 | 563-7]| 33 | 348.8 27 | 658-7 || 28 | 764-5 40 16-32} 42 | 576-7|| 43 | 707-1 50 52-03 || 52'| 561-1]] 53 | 332.3 32 | 619-5) 33 | 745-0 45 19-37] 47 | 585-1]|/ 48 | 710-8} 23 7 0 | 24 56-67|| 2) 559-5] 3 | 324.0 37 | 623-6|| 38 | 773-4 50 24-12}| 52 | 575-4|| 53 | 745-44 23 10 0 | 25 08-88|} 2] 551-9|| 3] 143.3 42 | 609-8 || 43 | 806-6 55 14:43 || 57 | 594-0]} 58 | 787-7 5 | 25 07-54|| 7 | 540-4!) 8 | 160-1 47 | 629-: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 52 | 611-6} 53 | 818-2 5 | 25 00-:33|| 7 | 596.0]] 8 | 830-9 15 | 25 02-72) 17 | 555-9] 18 | 142.6 57 | 611-7|| 58 | 806.8 10 | 24 55-60}} 12 | 558.0]| 13 | 764-6 20 04-91 |} 22 | 553-2} 23 | 150-5 9) 577-5|| 3 | 774-7 15 49-07 || 17 | 554-0 25 06-12) 27 | 547-7} 28 | 149.9 7 | 584-5] 8 | 749-5 20 48-23 || 22 | 533.4 || 23 | 622.0 30 05-79 || 32 | 543.0] 33 | 137-5 12 | 567-5 || 13 | 735-1 25 50-85 || 27 | 535-6|| 28 | 604-4 35 07-78 || 37 | 531-0}| 38 | 133-6 22 | 559-9]| 23 | 666-1 30 49-71 || 32 | 524.4 || 33 | 577-8 40 05-90 || 42 | 517-4]! 43 | 134.8 32 | 547-6|| 33 | 579.3 40 41-97 || 42 | 525-5 || 43 | 507.8 45 | 25 01-72]! 47 | 510-1]} 48 | 144-1 47 | 539-8] 48 | 500-4 45 44-90 || 47 | 532-7|| 48 | 490.7 50 | 24 53-45) 52 | 519-1] 53 | 158.0 2 | 539-5] 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 || 2 | 537-7|| 31 168-1 2 | 548-1 3 | 470-4 30 57-31 || 32 | 533.2]! 33 | 393.2 5 45-98 || 7 | 545-3]! 8 | 175-8 12 | 547-1}} 13 | 459-7] 26 10 0 | 24 45-81 2 | 575-3]| 3 | 231-0 10 47-96 || 12 | 542-5] 13 | 177-8 17 | 547-0!) 18 | 459-8 10 | 25 00-64)) 12 | 564.2]! 13 | 205.9 15 50-38 | 17 | 535-9 22 | 558-1 || 23 | 442-7 20 | 25 00-50]! 22 | 541-3 || 23 | 188.8 20 51-27 || 22 | 533-2]| 23 | 176-4 27 | 562-9|| 28 | 425-0 30 | 24 58-62) 32 | 546-9|| 33 | 128-4 30 54-77 || 32 | 542-2]! 33 | 180.3 32 | 557-2) 33 | 419-8 4MBeZoOL-Ol ||,42 | 558-7 | 43 |v 1072p | one tea 37 | 553-7|| 38 | 410-6 24 20 0 | 25 07-69 2 | 558-2 3 | 270-2 42 | 551-9) 43 | 407-5} 26 20 0 10-90|| 2 |-538-3]| 3 | 279-6 15 07-49 || 17 | 561-5] 18 | 254.2 47 | 551-4) 48 | 405.5 16 14-10 || 17 | 530-5 |} 18 | 289-2] 24 292 0 04-51 2 | 559-9]) 3 | 249.9 BiFinar. k=0:000135. BALANCE. k=0:000010, MAG. AND MET. oBs, 1846. 4k 342 Notes To THE Exrra OpsERVATIONS OF MAGNETOMETERS, FEBRUARY 25—SuEPTEMBER 11, 1845. NOTES ON THE AURORA BOREALES SEEN AT MAKERSTOUN. Gott. M. T. dh m. Feb. 25 9 50. Auroral arch, upper margin passing through a Cygni. 55. Auroral arch, lower margin passing through a Cygni. 10 0. Arch 1° higher, steady ; reaches from W by N. to NE by N. 10 10. Arch nearly as before ; the eastern termination is rounded like portion of a circle, but the western termination, which is brightest, is sharp, starting in a nearly straight line, making an acute angle with the horizon. 35. Arch much fainter, the lower edge passing through « Cygni. 11 40™—50™. Bright auroral arch like ermine, about 7° altitude ; black sky (?) within, ultimately broke up into several small arches with short streamers. 12 15, The arch is rather irregular, and consists solely of pencils. 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 faint streamers. . 9 0. Aurora obscured by clouds. 9 40. An auroral belt passing through 4 Orionis and between Castor and Pollux ; rather nearer Castor than Pollux. 34. The belt broken into two ; probably the whole semicircle would be visible if the sky were clear, it is seen through haze. 42. The arch is 4° broad, it passes south of Pollux through y Orionis and y Geminorum to 45° altitude from E, horizon, where it is lost behind clouds ; the arch is now single. 45. The arch passes between « and y Orionis, south of Pollux and through ¢ Bootis. 50™. The arch 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 passes about 4° to south of « Orionis, and 3° to south of ¢ Bootis. 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 with certainty be called aurora, The sky throughout the evening generally covered with rather large cirro-cumuli, a species of cloud which, if my memory serves, is rather common under the auspices 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 milky 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 been observed. 11 35. Sky becoming overcast ; light still seen to N. 13 35™, Sky overcast. Aug. 24 11 15. Diffuse auroral light 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 to- wards the zenith; much obscured by clouds. 25. Streamer rises from W by S., pointing south of zenith, another streamer is connected with it at about 15° altitude, the latter passes through the zenith. Auroral patches to N. 40. Streamer to W by §., narrow and distinct, making an angle of about 10° or 15° with the circle through the zenith and W by 8S. 45, The origin of the streamer has moved further south on the horizon, but it is now very faint. Auroral bank to N., altitude about 10°. Cloudy to E., 8., and N. Sky chiefly from N. to W. and to SW, 11 10. An auroral arch or bank, rather patchy and irregular ; occasionally short dumpystreamers. 15™. Arch pulsating. 20™, Only the NW. quadrant visible, continuous and rapid pulsation as high as Ursa Major. 23. Patches disappeared, to a considerable extent. 26™. Patches reappeared but not so bright as before. 36. Faint streamers from NW. horizon. 39™. Streamers bright. 41. Brightest streamer to WNW. 45™. Much fainter. 655™, Aurora nearly disappeared. Sky be- 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 faint. 45™, Beam still continues, but fainter and shorter. 50™. Aurora very faint; the beam has dis- appeared. Notes To THE ExTRA OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 21—DECEMPER 8, 1846. 343 NOTES ON THE AURORA BOREALES SEEN AT MAKERSTOUN. Gott. M. T. d, h. m. Sept. 21 13 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. Oct. 8 8 20. Auroral light; feint streamers to N. and NW. Oct. 9 8 5. Several bright streamers sprung up from NNW. Oct. 22 10 Faint auroral light seen through an opening in the clouds ? Nov. 17 7 34. Bright aurora over the sky ; partially cloudy ; quite overcast a little ago. A portion of an arch to south, perhaps 30° (2) 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 S$. 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. 6. Incipient arch springs from W., altitude of summit 26°. 7. 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- 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 aurora, 36. The well-defined aurora now only reaches to the zenith. 48. 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 segment above NNW., 48°. 1. Altitude of auroral segment above NNW., 47°. 5. It again became cloudy, but the aurora crept nearer and nearer the N. horizon. Dec. 8 915. Auroral arch toN. ‘10° 5™. Auroral arch to N. 7 7 pe q 7 i —— = aia - ’ Se = es - at id - » gt An = ' ort ‘ g vy ue alles ‘ OBSERVATIONS OF MAGNETIC DIP, AND FOR THE ABSOLUTE HORIZONTAL INTENSITY. we “MAKERSTOUN OBSERVATORY, far jose an 1846. “MET. ops, 1846, 4s 546 Gottingen Mean Time, Middle of Observation. is) i) ow wo ou Jan. Jan. 3 4 20 || Jan. 5 23 12 Jan. 6 4 30 Jan. §& 22 52 Jan. 9 4 35 Jan. 12 22 41 Jan. 13 4 38 Jan. 15 22 36 Jan. 16 4 40 Jan. 19 22 35 Jan. 20 22 37 Jan. 21 4 50 Jan. 23 22 36 Jan. 24 4 32 Feb. 1 22 52 Feb. 2 4 43 Feb. 4 22 50 Feb. 5 5 20 Feb. 9 22 52 Feb. 11 4 32 Feb. 12 22 37 Feb. 14 4 27 OBSERVATIONS OF MAGNETIC Dip, JANUARY 2—FeEpRuUARY 14, 1846. NEEDLE. Face or Circe E. FACE OF CIRCLE W. 2 [- tae 4 o's Tem-| End Mark on Needle Mark on Needle Mean. | DE ES ies pera-| dip- PAD: rye ber. | ture. | ping. E. w. E. Ww. ° 2 39 B 72 37-0 | 71 19-5 || 72 9-0 70 44-0 || 71 42-37 W 2 B 72 44-0 | 71 17:5 72 6-0 70 47-5 ||71 43-75 Ww Z 71 29.93* . 2 45 A 70 56-0 | 72 18-5 || 70 14-5 71 28-0 ||71 14-25 Ww 2 A 70 58-0 | 72 17-5 70 29-0 71 33-0 | 71 19-37 WwW f \ 2 47 B 72 22:0 | 71 17-5 || 71 56-5 70 49-5 || 71 36-37 | WwW j 2 45 B 72 23-0 | 71 19-5 || 71 54-0 70 54-0 || 71 37-62 W. 71 27-34 : 2 29 A 71 10-0 | 72 24.0 || 70 17-0 71 19-0 || 71 17-50 WwW ; 2 | 35 | a | 71 5.0 | 72 23.0 || 70 15.5 | 71 28.0 |'71 17-87 wil 2 32 B 72 36:0 | 71 18-0 || 71 54-0 | 70 48-0 ||7L 39-00 )\ WwW | 2 35 B 72 30-5 | 71 18-5 || 71 57-0 70 53-0 || 71 39-75 71 26-93 || W : 2 | 44 | A | 71 3-0 | 71 580 |] 70 30-5 | 71 26-5 ||71 14-50 Ww ' 2 39 A 71 17-5 | 72 85 || 70 19-5 71 23-0 || 71 17-12 ) WwW ; ‘| 2 44 A 71 7-0 | 72 7-0 || 70 22-0 71 27-0 || 71 15-75 WwW ; 71 25-84 2 38 B 72 14:0 | 71 20-0 || 71 54-5 70 54-5 || 71 35-75 WwW 2 44 B 72 10-0 | 71 23-0 || 71 49-5 70 56-5 | 71 34-75 WwW 2 43 A 71 12:0 | 72 8-0 || 70 32-5 71 24-0 || 71 19-12 Ww 2 47 A 71 85 | 72 3-5 || 70 35-5 71 35-0 | 71 20-62 WwW 71 28-28 2 41 B 72 24-5 | 71 22-5 || 71 49-0 | 70 54-0 || 71 37-50 WwW 2 42 B 72 19-5 | 71 26-0 || 71 46-0 70 52-0 | 71 35-87 WwW 2 31 A 71 20-0 | 72 18-5 || 70 24-5 71 «17-5 || 71 20-12 } B 2 44 A 71 10-0 | 72 13-0 || 70 32-5 71 22-5 71 19-50 | B 71 26-06 2 44 B 72 18-0 | 71 16-5 || 71 45-0 | 70 51-5 || 71 32-75 | B 2 48 B 72 16-5 | 71 16-5 || 71 45-5 70 49-0 || 71 31-87 B * Unsatisfactory Observations, end b dipping. _ OBSERVATIONS OF DEFLECTIONS FOR THE ABSOLUTE HorIzonTAL INTENSITY, 1846. 347 3 DEFLECTING Bar. DECLINOMETER. Gottingen ar ae Distance N. |'Tempe-||Observed ey Observation. 2 35 42-0 545-3 45-9 | 0-4515588 542-1 45-5 541-3 45.2 | = 535-3 45-4 1 57 11-4 542-1 45-8 0-4521956 543-0 45:5 | 538-8 45.2 533-0 45.4 1 30 25-3 540-1 45.8 0-4527909 \ 543-8 45-6 | \ || 538-3 45-2 i 531-5 45-4 1 11 10-2 543-6 45-8 0-4530940 544-8 45-6 | 535-4 45-2 f 531-2 45-4 0 56 59-6 545-6 45.8 0-4531420 I 545-5 45-6 | 534-6 45-3 | | . || 533-4 45-3 | 0 46 22-6 546-9 45-7 0-4535303 546-3 45-7 531-5 45:3 532-9 45-3 0 38 15-4 544-1 45-7 ||? 0-4538820 544-3 45-7 | (Diff.) Se. Div. 240-66 240-60 554-2 53-7 548-4 53-3 2 34 59-8 551-6 53.7 0-4496891 552-2 54-0 552-9 53-6 = 546-6 53-4 1 56 40-1 550-1 53.8 0-4502303 552-4 53-9 550-5 53-5 545-9 53-4 1 30 1-2 550-6 53.8 0-4508358 552-0 53-9 | 548-8 53-4 547-0 53-4 1 10 54-0 551-7 53-8 0-4513829 551-8 53-9 (Diff.) Se. Div. 248-84 247-87 348 Date. N. Enp oF MaGnet MOVING E, N. End oF MAGNET MOVING W. OBSERVATIONS OF VIBRATIONS FOR THE ABSOLUTE HorizontTau INTENSITY, 1846. BIFILAR. Time of Transit. No. of Time of Transit. Time of one Vib. Transit. Time of Transit. Time of one Vib. Read- ing Cor. 5-7 39-1 41-2 14-5 16-7 50-0 52-0 25-0 27-3 0-6 2-7 35-8 37-8 11-0 Mean observed time of one vibration = 158°5270. Semi-are of vibration of magnet, 48°-7. Rate of clock . mm. & 5 13-0 6 46-2 7 48-3 9 21-4 10 23-6 11 56-6 12 58-8 14 31-7 15 33-9 17 7-0 18 9-0 19 42-2 20 44-4 22 17-7 15-533 530 530 21-5 23-6 57-1 59-2 32-4 34-6 7:8 9:9 43-2 45°3 18-6 20-6 53-8 56-0 , commencing 8°, ending 24°. —187 550-2 Se. Div. Ther- mome- ter. ae 46-3 552-3 551-6 555-4 557-0 557-7 552-5 549-2 553-2 Temperature 27:8 |7 54 30-0 56 3-4 57 5-4 58 38-8 59 40-9 1 14-2 2 16:3 3 49-6 4 51-7 6 24-9 7 27-1 9 0-4 15-560 557 553 553 552 Mean observed time of one vibration = 15%:5576. 61 65 47-2 15-573 || 573 567 Semi-arc of vibration, commencing 7}°, ending 1}°. of magnet, 56°-2. 565-9 | 54-4 563-7 562-3 560-0 562-2 559-4 562-3 Temperature OBSERVATIONS OF ABSOLUTE HorIzZONTAL INTENSITY, 1846—1847. 349 DEFLECTING Bar. UNIFILAR. BIFILAR. Unifilar SS Circle Reading|| Deflection. || Reading} Ther- Reduced. Cor- mome- rected, ter. Declino- Circle Scale meter. Reading. | Reading. Log. Tem- 4 r3 sin. w. pera- ture. || Distance Se. Div. || Se. Div. {| Se. Div. JUNE 23, 273-90 || 4-00 | 274-30 | 3°75 291-40} 3-15 280-10 || 5-52 285-80 || 8-00 290-20 || 6-12 272-70 || 4-55 287-90 || 4-85 275-50 || 7-90 277-40 | 272-40 | 283-40 | 282-60 27:50 | 271-60 287-10 281-80 279-60 281-10 293-90 284-60 285-50 | 285-10 281-80 283-20 274-60 9-1662338 9-1650658 9-1648515 9-1642171 9-1637963 WwW ARDY WAhARNWWKRENWAKRN WEAR WWE 9-1631516 i] wp w JAN 281-20 282-55 281-20 281-00 295-60 281-35 275-55 279-30 283-10 281-95 278-20 281-45 285-10 281-85 280-75 281-65 283-90 282.95 279-00 282.85 282.60 279-50 278-50 | 279-10 280-30 280-55 280.00 | 280-10 282-10 281-00 9-1553068 9-1553784 9-1554058 9-1552407 9-1556499 9-1556718 — 9-1556812 _ anocepoonnna BRNOWNWNWNWNWNHNWNHNWNHNWNWNHNWNWNWNWe pe MAG. AND MET. ozs. 1846. 4T 350 OBSERVATIONS OF ABSOLUTE HorizontTaL Intensity, 1847. | DEFLECTING Bar. | UNIFILAR. BIriuar. | Declan Unifilar : (santas | Dintarioen ny Tem- | Gircle Saale “shir Circle Reading}| Deflection. || Reading| Ther- = 7. Pole.| Pera- Reading. | Reading. Reduced. | Cor- | mome- ture. | rected, ter. ~ | Feet. | | / Se. Div. . Div. 3 Lage Y/ Se. Div. es Magnet away. E | Wi) 29 31 46 | 3 |) 9.1809059 aS SOREN) CANA STION to snr wm a 9-1811979 9-1808954 Ww E Ww E Ww Magnet away. 9-1812125 Oona PoP orp SP Pp Pp DP PS BP JUNE 15, 1847. Magnet away. || 236 26 3 | 194-05]| 1-17 || 236 E | 62-6 19 30 | 191-87]| 1-10 |) 265 21 17 | 222.62|| 4.45 | 207 | 0-85 : 35 19 30 | 209-52) 1-05 | 265 21 17 | 193-65 || 4-30 || 207 27 23 | 188-32|| 1-65 || 249 44 23 | 189.22)! 4.45 || 223 27 23 | 193.22|) 1-07 || 249 44 23 | 180-37 || 4-20 || 223 30 7 | 188-83]| 1-77 || 243 34 43 | 193-92]| 4-42 || 229 30 7 | 190-57 || 1-57 | 243 2% 34 43 | 190-00|| 3-87 || 229 33 | 43 20 | 189-42] | 240 ’ W | 62-1 || 232 16 47 | 196-70 232 1°60) §| E |622 |) 240 43 20 | 190.38] 2.50 | 240 | W | 62-0 || 232 16 47 | 195-17]! 3- 232 | Magnet away- 236 30 17 | 194-20) 236 3 28 56 24 || 57 5 ||? 9:1728174 p12 55 36 5 |p 91730075 9-1732048 9-1730914 4 4 6 45 6 bi) 6 5 6 5 5 B) 5 5 5 a 5 6: | SEPTEMBER 11, 1847. Magnet away. 45-05 || 3- 237 5 5 ; ‘ 30) 4: 266 208 266 208 250 224 250 224 | 241 | 232 | | le] |}28 52 10 } }9-1732091 12 53 21 | ) |} 9.1733823 241 4 34 29 232 9-1733835 Pope PP w 6 oh WH Ow 42nanensnendh Dommnmnnmnd UYRBRESBRAaeH Hw OBSERVATIONS OF ABSOLUTE HORIZONTAL INTENSITY, 1847. 351 DEFLECTING Bar. UNIFILAR. BIFILAR. Git. Declino-||_. Unifilar oa aa Mean Distance | n. | Zem- Circle Scale || meter, ||Civcle Reading|| Deflection. || Reading} Ther- Time. =r. Pole.| PT?" || Reading. _| Reading. Reduced. Cor- | mome- ture. rected. ter. d. h. || Feet. bi s M 4 Se. Div. || Se. Div. - c) Ls C “i wy Se. Diy. 2 SEPTEMBER 13—14, 1847. 23 50 Ef E | 56-6 || 260 30 42 56-41) 8-00 || 260 48 20 536-5 50-2 22 53 0-85 W | 53-2 | 213 17 5 44-27 |} 12-17 || 213 7 25 23 46 15 535-4 50-2 23 46 w{ E | 56-3 | 260 30 42 45-12]! 8-57 || 260 25 10 535-1 50-2 22 56 W | 53-4 || 213 17 5 40-65 || 10-75 || 213 1 5 536-4 50-2 23 33 Bf E | 55-8 || 247 46 18 44-55 || 8-85 || 247 39 27 535-6 50-2 23 6 1-10 W | 54-1 || 226 11 32 46-52] 11-07 || 226 7 9 10 44 40 534-0 50-2 23 37 w{ E |55-9 || 247 46 18 40-37 | 8-55 || 247 31 13 534-5 50-2 23 2 W | 53-8 | 226 11 32 45-37 || 11-05 || 226 4 51 533-6 50-2 | 23 26 E | E | 55-3 || 240 46 30 45-85 || 9-92 || 240 41 32 | 534-1 50-2 23 13 1-55 W | 54-6 | 233 6 43 45-96 ||.10-55 || 233 1 34 3 49 36 534-1 50-2 23 23 w{ E | 55-0 | 240 46 30 44:76) 9-87 || 240 39 23 534-4 50-2 23 16 W | 54-6 || 233 6 43 45-67 || 10-62 || 233 0 55 || 533-9 50-2 23 55 | Magnet away. 236 56 7 | 44-74] 7-15 || 236 50 47 9:0941498 9-0945213 9-0948615 The observations, June 23, 1846 and Jan. 2, 1847, were made with a unifilar magnetometer, by Mr Jones of London, belonging to Professor ForBES. The observations, May 31, June 15, Sept. 11, and Sept. 14, 1847, were made with a theodolite magnetometer, by Mr Jones, belonging to Sir THoMAs BRISBANE. The following magnets were used in these observations :— June 23, 1846. Jan. 2, 1847. May 31, 1847. June 15, 1847. Sept. 11, 1847. Sept. 14, 1847. Suspended. Solid, 2:5 inch. 3:0 inch. Bate Idem. Collimator, 3:0 inch. Hollow (with mirror), 3:0 inch B. 6. em. Defiector. Solid, 3°65 inch. F. Idem. F. Collimator, 3°65 inch. Idem. Idem. Collimator marked 4, M. B. The magnets used on the first two days belong to Professor FORBES’ instrument ; those used afterwards belong to Sir THomas BRIs- BANE’S instrument, with the exception of the collimator deflector marked 4, used Sept. 14, 1847, which belongs to an instrument made by Mr Jones for Professor BAcHE of New York. An abstract of the observations for the times of vibrations of the different deflectors is given on the following page, and the final results will be found in the Addendum to the Introduction. 352 OBSERVATIONS OF VIBRATIONS FOR THE ABSOLUTE Horizontal INTENSITY, 1846-7. | aeaVE | Ring | No. of | Semiarcs sitingen | Bar. | on or |Vibra-| of | off. | tions. | Vibration. d. h. UY ’ 1846. June 24 4] F | On | 323 | 16to 3 June 24 7|| F | Off | 369 | 23— 4 Dec. 31 2/|) F | Off | 357 | 25— 3 1847. | Jan. 1 3/|| F | On | 319 | 23— 5 May 31 10] M | Off | 351 | 35—10 June 15 7] M | Off | 357 | 50—15 Sept. 10 21 | M | On | 319 | 53—24 Sept. 10 23 | M | Off | 357 | 42—12 Sept. 12 22]) B | On | 219 | 32—17 Sept. 12 23 | B | Off | 357 | 22—10 Observed Time of One Vibration. s. 12-14708 4-96988 5-01310 12-20431 503812 508227 12-51917 5-10007 14-17608 5-75353 ee | Se. Div. one | BIFILAR. COEFFICIENTS FOR Reading | Tempe- Corrected, | rature. Torsion, = 562-4 59-3 | 0-002143 568-7 | 60-5 | 560-9 | 40-5 563-8 | 41-1 574-8 | 69-1 576-7 | 58-2 |) 537-3 | 53-2 545.0 | 53-8 | 527-6 | 52-2 | 524-9 | 52-1 || “001112 -000834 -001431 -000300 -000300 -002132 -000953 -001807 -000871 Induction, Tempera- Sen ture, = q. = oa 0-000300 | 0-00569 -000300 | -00569 -000300 | -00569 000300 | -00569 -000100 | -00417 -000100 | -00417 ‘000100 | -00417 -000100 | -00417 -000090 | -00627 -000090 | -00627 DIMENSIONS OF THE INERTIA RINGS. For MAGNET F. 3°635 inch. 2°971 inch. 0-142 inch. External Diameter, . . . Internal Diameter, .. . Thickness, .....+.-+- Weight, ....-....-. See footnote to the previous page. 107477 grains. For MaGnet M. 3°515 inch. 2912 inch. 0:187 inch. J254°50 grains. For MAGNET B. 3:604 inch. 2°932 inch, 0172 inch, 1299-40 grains. 7 Si S| “AY le OU, . Se reget ee er DAILY METEOROLOGICAL OBSERVATIONS . as] ee MAKERSTOUN OBSERVATORY, 1846. é A at 7] 4 bare 5 e aps. 5 hig: (ane a ey Aa | ; © CT: 5 ad ris be ‘ vite ann Seidl Shs ay 00h ide | j . MET. OBS. 1846, 40 Sealernell nbn acee wre ae |) ies. TTAANA . ach Angel a oe ~~ oe aoe 54 Dairy METEOROLOGICAL OBSERVATIONS, JANUARY 0—2, 1846. THERMOMETERS. WIND. ~ Gott. || Baro- Heer s Mean || METER Maximum Se.:C.-s.:Ci.]) Sky ie . Time. || at 32°. Dry. | Wet. | Diff force in [pom peat clouded. Species of Clouds and Meteorological Remarks. | 1, |10™. Bren d. h. | in. = S eS lbs. lbs. | pt. pt. pt. pt. 0—10. 0 13 || 28-998 || 40-7] 37-7| 3-0]| 2-2) 1-1] 23 1-0 || Masses of seud. 14 | 28-980 || 41-2] 37-5} 3-7|| 2-9] 2-3) 24 0-5 Id. 15 || 29-015 || 40-2| 36-9} 3-3] 2-7) 1-2) 22 0-2 Id 16 033 || 40-7| 37-1| 3-6|| 2:9] 1-9} 24 0-3 Id 17 077 || 40-8| 37-3] 3-5|| 2-8] 1-5] 25 0-5 Id. 18 136 || 40-0| 36-9| 3-1]| 2:7] 1-2] 25 1-5 Id. 19 | 214 || 40-6| 37-3] 3-3]] 2-1] 2-4) 26 9-5 || Seud and cirro-strati ? 20 287 || 37-6| 36-7] 0-9]] 2-3) 1-3) 27 9:8 Td. ; rain lately ; sky to E. 21 338 || 37-4] 35-9] 1-5]] 1-7) 0-7| 27 || 25:—:— 5 1:3 \. 1h 0) 433 || 38-3] 34-7] 3-6]| 1-9] 0-9) 26 1 466 || 38-7| 35-7| 3-0|| 2-8} 1-6| 24 2 481 || 38-4| 34-3] 4-1 |] 3-1] 1-3] 25 3 502 || 37-6) 34-2) 3-4|| 1-6] 0-8| 24 4 526 || 36-0| 32-9| 3-1]) 1-5] 1-0} 24 5 556 || 35-6| 32-2| 3.4|| 1-7] 0-5| 24 6 584 || 35-4| 32-2] 3-2]| 1-6] 0-5; 21 7| 602 || 35-2) 31-8] 3-4|| 1-1] 0-4) 25 8} 623 || 35-0] 31-2] 3-8]] 1-2] 2-6| 28 9 652 || 34-8] 31-3] 3-5]) 2-3] 2-0) 25 10 678 || 34-9| 31-0) 3-9] 1-8} 0-5) 25 11 721 || 33-5} 30-4) 3-1]| 1-0] 0-8} 25 12 741 || 33-4] 30-2} 3.2}| 0-5| 0-2) 26 13 | 29-756 || 33-6] 30-1) 3-5|| 0-3) 0-2) 25 14 781 || 33-8) 30-1| 3-7] 0-6} 0-3) 25 15) 805 || 33-5| 29-8| 3-7 || 0-7} 0-9} 26 16) 847 || 32-5) 29-2] 3-3]| 0-8| 0-1] 26 17 | 869 || 32-6) 29-4| 3-2] 0-6] 0-1) 27 18 | 903 || 30-2| 27-9} 2-3]| 0-2) 0-1} 20 19) 939 || 30-6| 28-4} 2-2|| 0-0] 0-0} 12 20 || 29-972 || 32-0} 29-1| 2-9|| 0-1] 0-0} 24 21 || 30-018 || 28-4] 27-0] 1-4]| 0-1] 0-0} 16 || —: —: 28 22 033 |) 30-6) 28-4} 2-2]| 0-0] 0-0) 20 23 073 || 30-6| 28-9] 1-7|| 0-0} 0-0) 24 orarnw —_ a o) eo = ns 2 wo Se 'O:¢ on —) Ne} o o o oO a ou 10|| 178 || 31-6] 30-8] 0-8 |} 0-0] 0-0] 25 | 11| 175 | 32-2| 31-2| 1.0] 0.0| 0.0} 20 12) 163 | 33-0] 31-1] 1-9}| 0-0} 0-0} 20 | 13 |30-151 || 34-0] 31-7) 2-3] 0-0] 0-0 140 || 34-6| 32-2| 2.4]) 0-0] 0-0 i5| 123 || 34.3 32-2] 2.1]) 0.0] 0-0 | 16 118 || 34-8| 32-7] 2-1] 0-0] 0-0] 16 | 1-0 || Thin cirri; cumulo-strati on E. horizon. 3-0 | Scud; cirro-strati and cirri to E.; clouds tinged red. 1-0 || Cumulo-strati on E. horizon ; cirro-strati; scud on 0-5 Id. (0) [Cheviot. © 0-2 Lays cirrous haze. {o) 0-1 tds; id. (0) 0-1 Id. ; patches of scud; id. (0) 0-5 || Loose seud; cumulo-strati; cirro-strati. [o) 0-5 || Cumulo-strati on NE. horizon ; cumuli to SE. (0) 0-2 Id. ») 0-2 || Patches of seud and cumuli; a slight haze on horizon. )) 0-2 || Haze round horizon. ») 0-0 || Clear. »)) 0-0 Id ») 0-0 Id. ; haze on horizon. 0:0 id id. 0-0 Td; id. 0-0 || Clear; haze on horizon. 0-0 dss id. 0-0 fda; id. ; streak of cloud to SW. 0-1 Id. ; id. ; clouds on horizon. 0-1 Id. ; id. ; id. 0-2 Id. id. ; id. 0-3 || Masses of cirro-strati to E. 0-3 || Cirro-strati and cirri to E.; cumulo-strati on E. hor. 3-0 || Thin and barred cirri across the sky; id. 0-8 || Cirro-strati and thin cirri. (0) 0:8 Ta. re) 0} 0-8 || Cumuli and cirri on E. horizon; cir.-cum.-str. to W.© 3-0 || Cirro-cumuli and cirri; cumulo-strati in haze to E. © 17} 088 || 33-1| 32-6| 0-5 |) 0-0| 0-0) 22 18) 073 || 35-2| 32-7} 2-5|) 0-0) 0-1) 17 19] 052 || 36-0} 34-7| 1-3|/ 0-3| 0-3] 19 20 038 | 36-7| 35-3) 1-4 || 0-2] 0-1! 18 5-0 Id. (0) 3-0 || Cirro-cumulo-strati. {nearly at right angles. }- 9-8 || Cir.-str. lying in bands N by W. to S by E., with bars 10-0 || Sky covered with cirrous haze. >} 10-0 Id. } 10:0 Id. 10-0 || Cirro-stratus and cirrous haze. 10-0 Id. 10-0 Id. ; a few stars dimly visible. 9-5 Id. 10-0 || Cirro-stratus and cirrous haze. 10-0 Id. 10-0 Td. 10-0 Id.; shower of hail, afterwards of rain”* 10-0 Id.; a few stars dimly visible. 10-0 Id. 10-0 Id.; rain”? 10-0 dss eos The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, B.=8, 8. = 16,W.=24. The motions of the three strata of clouds, Se. (seud), C.-s. (cirro-stratus), an d Ci. (cirrus), are indicated in a similar manner. DAILY METEOROLOGICAL OBSERVATIONS, JANUARY 2—6, 1846. 355 THERMOMETERS. WIND. @loute| el cone Maximum Se: Crs.t Cinl Sky Species of Clouds and Meteorological Remar! i Ss. Wits. re 39°. pees Wet. Diff phe From de clouded. species 0: ouds an eteoro. Ogica. emark h jm = in. ° ° ° Ibs. | Ibs, pt. || pt. pt. pt. | 0—10. 2 21 | 30-007 || 37-4; 36-1} 1-3] 0-0; 0-0} 20 || —:20:—/| 10-0 || Thick cirro-stratus and scud. 22 003 || 39-2) 37-7| 1-5|| 0-2} 0-0) 31 | —:20:—J]| 10.0 Tae 23 |/30-000 || 39-5| 38-1| 1.4|| 0-2| 0-2) 18 | —:20:—| 10.0 Ia. 3 0 || 29-978 || 40-5] 39-0] 1-5 |) 0-1| 0-1] 18 || —:20:—|| 10.0 Ia. 1 | 955 | 41-6) 40.0] 1-6) 0-2] 0-0| 16 | _:19:—/| 10.0 Ia. 2 940 || 43-4] 41-7] 1-7] 0-1} 0-2] 17 || —:19:—]| 10.0 Id. 3 909 || 44-7} 43-0) 1-7 0-5| 0-8) 18 | 19:—:— | 9.9 || Seud; cirro-cumulo-strati. 4 888 || 43-8| 42-4] 1-4] 0-5| 0-0} 16 || 19:—:— || 10.0 Id.; cirro-strati. 5 || 865 || 42-7] 41-3| 1-4]] 0-3| 0-1] 17 |19:—:—|] 10.0 6 853 || 42-7| 41-4} 1-3] 0-2] 0-1] 16 10-0 || Scud; cirro-strati. 7 825 || 44-7| 42-9] 1-8 |] 0-5} 0-5) 17 10-0 Id. ; id. 8 809 || 43-2] 41-8] 1-4|] 0-7) 0-2) 18 9-5 Id.; id, >} 9 776 || 43-8} 42-4} 1-4] 1-3] 0-5] 18 }—:19:— 9-5 || Cirro-cumulo-stratus ; lunar corona. oe 10 748 || 43-2) 41-8} 1-4|| 0-8} 0-6} 17 7-5 Id. > 11 715 || 43-9| 42-6| 1-3] 1-0] 0-5| 16 10-0 |) Thick cirro-stratus and scud. 12 || 687 || 44-0! 42-9] 1-1]] 1-5| 0-3] 16 10-0 Ta. 23%|| 29-560 || 37-7} 36:3] 1-4]| 3-9] 0-1) 20 | —:19:—/}} 2.0 || Girri and cirro-strati. 4 13 || 29-766 || 35-4) 33-6] 1-8]| 1-2| 0-1] 19 || 9-5 || Seud and cirro-strati. 14 || 774 || 33-9] 32.4] 1-5]| 0-1] 0-0] 18 3.0 Ta. 15 779 || 35-3| 33-7| 1-6] 0-1| 0-1| 20 6-0 Ta. 16 || 784 || 34-3] 32-9] 1-4]] 0.1] 0.0| 16 9.8 la. 17 || 788 || 37-5| 35-3] 2-2|] 0-0] 0-0! 20 3.5 Id. 18 798 || 33-4} 32-3] 1-1] 0-1] 0-1) 20 3.5 Ta 19 806 || 30-7} 30-1} 0-6|| 0-1} 0-0] 20 0-2 || Cirro-strati on SE. horizon. 20 829 || 29.4| 28-8} 0-6|| 0-1] 0-0/ 18 0-3 Td. 21 849 || 28-8] ---.. ss || 0-0} 0-0} 17 1-0 ?|| Seud on horizon ; thin cirri to N. ; very thin cirri to S. 22 858 || 31-2} 30-4] 0-8 || 0-0} 0-0} 20 0-5 || Cum.-str. on E. hor. ; clouds on Cheviot; thin streaks 23 876 || 33-3} 32-1] 1-2]| 0-1] 0-0] 20 0-8 || As before; more cirri forming to W. © (of cirri. © 5 0 869 || 35-1] 32-7| 2-4]| 0-1] 0-0} 16 || —:—-:30 2-5 || Woolly cirri; cumulo-strati on E. horizon. (0) 1 863 || 36-5] 35-0! 1-5|| 0-0| 0-0 3.0 la. ro) 2 855 || 36-7| 35-2] 1-5]| 0-0) 0-0] 14 0-5 Td. Pk ci) [a thin haze. © 3 850 || 37-0| 35-3) 1-7}| 0-0/ 0-0 1-0 || Cirro and cirro-str.; Venus is visible, shining through 4 847 || 34-0} 33-1] 0-9] 0-0) 0-0) 4 4.0 || Cirro-strati and cirri radiating from NW. 5 832 || 34-4] 33-3] 1-1] 0-1] 0-0} 20 4:0 || Woolly cirro-strati and cirri. 6 823 || 36-0} 35-6| 0-4|| 0-0} 0-0| 26 9-8 || Cirro-strati and cirrous haze. ) 7 805 || 34-7| 33-7) 1-0] 0-1} 0-1] 20 10-0 || Cirro-strati and thick cirrous haze. 8 785 || 37-2| 35-7] 1-5]! 0-2} 0-1] 19 10-0 Id. 9 782 || 37-2| 35-6| 1-6] 0-2) 0-1] 16 10-0 || Thick cirrous-haze. ) 10 | 761 || 37-0] 35-7| 1-3] 0-1| 0-1} 20 10-0 Td: vaint’® ll 715 || 36-9} 35-7| 1-2]| 0-8] 0.4} 17 10-0 || Scud and mass of cirro-strati; drops of rain. } 12 687 || 37-8} 36-4| 1-4] 0-7| 0-7| 17 || 10-0 Id. 14 Scud and mass of cirro-strati. 39-5 1-3 Td. 41-1 1-1 Id. ; rain?” 41-2 1-2 Td. 40-9 1-0 Id. 41-7 1:3 Id. 42-8 1-4 Id. 45-6 1-6 Id. ; clouds red to E. 44-7 1-1 || Scud ; dense homogeneous cirro-stratus. 46-2 2:7 Cirro-cumulo-strati and cirro-str., radiating from SSE. 45-6 2-2 Ribbed cirro-strati ; patches of scud ; sheets of cir.-str. 47-1 2:5 Cirro-stratous scud ; mass of cirro-stratus. 47-0 2.0 Ia.; id. 48-0 1:3 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 motions of the three strata of clouds, Sc, (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. DAILY METEOROLOGICAL OBSERVATIONS, JANUARY 6—8, 1846. THERMOMETERS. WIND. Gott. Baro- i Mean METER Maximum Time at 32°. || Dry. | Wet. | Diff. force in [Prom 1h, 10m, ie dhe in. 2 = 2 lbs. | Ibs. | pt. 6 3 || 29-581 || 48-9| 47-3] 1-6|| 0-7| 0-3] 18 4 589 || 48-9| 47-3] 1-6] 0-4} 0-1] 18 5 600 || 49-7| 47-7| 2-0]| 0-3} 0-1} 18 6 604 || 50-5] 48-2] 2-3]] 0-5} 1-1] 20 7 629 || 50-0| 48-0} 2-0]/ 1-3] 0-8] 18 8 638 || 49-2| 47-7) 1-5 || 0-9} 0-7| 18 9 639 || 49-1| 47-5] 1-6|| 0-9} 0-9} 19 10 639 || 48-4] 46.6] 1-8] 1-1] 1-2] 20 11 632 || 47-6] 45-7) 1-9]| 1-3] 0-7} 20 12 630 || 48-3| 46-2] 2-1]| 2-2) 2.3} 20 13 || 29-654 || 48-1) 46-0] 2-1]) 3-0] 1-0] 20 14 655 || 47-7| 45-5| 2.2] 0-9] 0-9) 20 15 663 || 47-9| 45-2| 2-7|| 1-2] 1-3} 19 16 684 || 48-0} 44.9| 3-1]] 0-8} 0-4) 18 17 694 || 47-5] 44.5) 3-0] 1-2] 0-1| 20 18 683 || 46-6] 44.1] 2-5]| 0-7| 0-4] 18 19 709 || 47-6} 44-8| 2-8 ]| 0-8] 0-7} 18 20 707 || 46-8| 44.6] 2-2|| 0-5| 0-1) 17 21 718 || 47-0| 44-7] 2.3]| 1-3] 0-9} 18 22 688 || 47-0] 44.8] 2-2]| 0-9| 0-3) 20 23 729 || 47-4| 45.2] 2.2]| 1-2] 1-6] 18 7 0 733 || 48-1] 45-6] 2-5] 2-4] 2.8] 19 1 728 || 48-0| 45-9) 2.1]| 4-0) 2-5) 18 2 734 || 48-5| 46-1] 2-4]| 4-5| 2-3] 19 3 748 || 48-2| 45-8} 2.4|| 3-7| 2-6] 20 4 785 || 48-7| 46-1] 2-6] 1-9| 0-8} 20 5 813 || 48-3] 46-0] 2.3]) 1-1] 1-0] 20 6 828 || 48-4] 45.8] 2-6]| 1-1] 1-7] 20 7 842 || 48-6| 46-0} 2-6] 1-8| 2-0] 19 8 $52 || 47-8| 45-6| 2-2]| 1-3] 1-3] 20 9 854 || 48-1] 45-9] 2.2}) 2-2| 1-8] 19 10 863 || 47-0| 45-0} 2-:0]|| 2-8] 1-4] 20 11 880 || 48-9| 45-4} 2-6] 1-8] 1-3] 20 12 859 || 47-5| 45-2] 2-3]| 2-8} 3-0] 20 13 || 29-852 || 47-8| 45.2] 2-6]| 6-2| 3-7] 19 14 858 || 48-2] 45-4] 2-8] 3-9] 4-5] 19 15 862 || 48-3| 45-7] 2-6|| 6-2| 4-0} 18 16 877 || 48-1| 45-7| 2-4]| 4-2} 2-8) 18 17 882 || 47-5| 45-7] 1-8|| 4-5] 2-0] 18 18 926 || 47-7| 46-0] 1-7] 2-6] 1-5) 18 19 947 || 47-9| 46-2| 1-7] 1-6] 1-2} 20 20 964 || 48-0| 46-3} 1-7 || 1-6) 1-2] 20 21 || 29-993 || 48-0} 46-4} 1-6] 1-9) 1-7| 20 22 || 30-021 || 48-6] 47-1| 1-5]) 2-2] 1-3] 18 23 044 || 49-4] 47-7) 1-7]] 1-7] 1-3) 19 Seng 057 || 49-8] 48-0| 1-8]] 1-9] 0-4] 22 1 067 || 50-3) 48-4| 1-9|| 0-8] 0-2/20y. 2 075 || 51-0| 49-0} 2-0|| 0-3) 0-1) 20 3 084 || 50-8| 48.8) 2-0}) 0-1} 0-0) 20 4 109 || 50-6 | 48-6| 2-0} 0-2] 0-1) 20 5 132 || 49-9| 47-9) 2-0]| 0-6| 0-3| 20 6 142 || 49-6| 47-3| 2-3]| 0-7| 0-8} 20 7 || 148 || 48-7| 46-8] 1-9]) 1-3| 0-8} 20 8 || 184 || 48-8} 46-7] 2-1]| 0-5| 0-4) 19 9 187 || 48-8| 46-7 | 2-1] 1-3| 0-8] 19 10 | 191 || 48-2) 46-2] 2.0] 2-0] 1-0] 20 from nears 724: Clouds, Sc. : C.-s.; Ci., moving Sky clouded. Species of Clouds and Meteorological Remarks. } Scud; mass of cirro-stratus. Id. ; id. Id.; cirro-strati, tinged red to W. Id. ; cirro-stratus. Taps id. ; a few drops of rain. Id: 5 id. [fully coloured corona. Id.; cir.and cir. haze; indistinct lunar halo; beauti- Td.s id. ; lunar corona. Woolly cirri and cirrous haze ; lunar corona. } Seud ; cirri and cirro-strati. Seud ; cirri and cirro-strati. Id. ; id. Id. ; id. } IG id. der id. Id. ; id. Ips id. fds jd.; the cirri and cir.-str. red to E. Id,; cirro-strati. Id. ; id. ; eirTi. fds id. ; id. Gees id. ; id.; drops of rain. tides id. ; woolly cirri. Id. ; id. ; id. Id.; thick woolly cirri. @ Id.; cirro-strati and cumulo-strati to E. Id. ; cirro-strati. Id. Td, Id.; thin haze; diffuse lunar corona. y Td. Id.; thin haze. »)) Id.; cirri and cir. haze ; lunar corona as before. jp Id.; id., radiating from WSW.; id. »)) Seud; cirri, radiating from W SW. ; the band of blue of corona getting Td. : cir. and cir.-str. » (fainter; the yellow is as bright as ever. yp nde : . yi Id. ; id. Id. ; cirro-strati and cirri. >} die id. ; cirrous haze. Id. Id. Id. ; cir.-str. and cir. haze, tinged with red to SE. Smoky seud ; fine cirro-strati and cirri. . Id. ; cirro-strati and cirrous haze. Id. 5 id. Scud. Id. Id.; cirro-strati. Td. ; id. (0) Id. ; id. Id. ; id., tinged with red. ») Id. Id.; cirro-strati ; small corona. »)) Cirro-cumulo-strati ; id. > Id. ; id. > tals cirri. »)) The direction of the wind is indicated by the number of the poin motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Jan. 74105, Lunar corona; fromthe moon to about 3}° from it, is a uniform greenish-yellow colour, then a band of yellowish-red half a degree broad, and last a band of blue about 1}° broad; the extreme radius of t! DartLy METEOROLOGICAL OBSERVATIONS, JANUARY 8—12, 1846. 357 a THERMOMETERS. ! WIND. Clouds, Gott. BARo- : Se.: O.-8: Ci] Sky 3 Mean || METER Maximum Fieiion s\eleaded Species of Clouds and Meteorological Remarks. Time. || at 32°. Dry. | Wet. | Diff Fic From aoe j 1h m ad h in. =e pees ig lbs. | 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. + 12 240 || 46-6) 45-1} 1-5] 1-0| 0-3| 19 7-0 Id. y 13 239 || 45:0 | 43.7] 1:3] 0-6] 0-2| 20 2-0 || Woolly cirri lying E. and W. y 14 247 || 44.9) 43-4/ 1-5] 0-3) 0-1| 24 7-0 || Cirro-strati. 15 251 || 43-6 | 42-5| 1-1]| 0-7} 0-1] 19 4-0 Td. d 16 262 || 43-4| 42-3} 1-1|| 0-0} 0-0} 12 10-0 Id. 17 267 || 45-4| 43-8| 1-6]/ 0-3| 0-0| 20 10-0 Id. 18 256 || 45-4] 44-0} 1-4]] 1-5] 1-1] 20 10-0 Td. 19 264 || 45-0| 43-4] 1-6]| 1-3] 1-4] 20 10-0 || Scud and cirro-strati. 20 271 || 44-2} 42-2) 2.0]| 1-0] 1-2] 21 ||}21:—:—]| 9.9 Tels clouds red to E. 21 280 || 44-0) 42-3) 1-7]| 2.2] 0-8; 21 | 21:—:—]| 8-0 || Send; cirri and cirro-strati. 22 296 || 45-2} 43-2) 2-0]| 0-8} 0-7} 21 || 21:—:— 9-5 Id. ; id. 2) 23 296 || 46-2} 43-7) 2-5] 1-6) 1-3| 20 ||21:—:—]} 9.5 dos id. 9 0 || 30-304 || 46-2) 43-8| 2.4]! 1-8) 0-4| 22 || 20:—:— 9-0 || Scud; cirri and cirro-strati. 1 285 || 46-3 | 44-2| 2-1] 0-8) 0-8} 22 || 20:—:—]| 9-9 Id.; dense mass of cirro-stratus. 2 260 || 46-2} 43-9) 2-3)) 1-3] 1-4) 20 | —:20:—|| 9-9 || Cirro-stratous scud and cirro-stratus. 3 253 || 45-7| 43-5) 2-21) 1-1| 0-2} 21 || —:20:—|| 10-0 Id. 4 251 | 45-0} 43-3} 1-7|| 1-2| 0-5] 21 || —:20:—¥J| 10-0 Id. 5 243 || 44-3 | 42-6] 1-7] 1-5} 0-2| 20 10-0 || Dense mass of cirro-stratus. 6 225 || 44-0} 41-9] 2-1]| 1-0} 0-7| 18 10-0 Id. 7 229 || 43-9] 41-7| 2-2]| 1-5| 0-4] 18 10-0 Id. 8 213 || 44-0| 41-4] 2-6]| 2.4] 1-6} 20 10-0 || Scud and cirro-strati. 9 202 || 43-7| 40-9] 2-8]| 2-4] 0-8} 21 10-0 Id. 10 187 || 43-7| 41-0] 2-7}) 1-0} 1-6| 20 10-0 Id. 11 155 || 43-5} 41-3] 2-2]| 1-6] 1-3} 18 10-0 Id. 12 149 || 44-0} 41-6] 2-4] 2.3| 0-6} 18 10-0 Id. 13 134 || 44-3) 41-5] 2-8]} 2-6] 1-4} 19 10-0 Id. 14 109 || 44-4| 41-9} 2-5] 2-3] 1-9} 20 9-8 Id.; drops of rain. 15 118 || 44-6| 42-0) 2-6]| 2-3) 0-3} 21 10-0 Id. 16 093 || 44-8} 41-8| 3-0]| 1-6] 1-5] 20 10-0 Id. 17 097 || 45-1| 41-7| 3-4] 1-3] 1-0} 20 10-0 Id. 18 079 || 44-9| 42-1) 2-8] 1-6] 1-4] 18 10-0 Td. 19 060 || 45-0 | 42-4] 2-6]] 1-3] 0.3] 18 9-5 Td. 20 031 || 45-1] 42-7) 2-4]| 1.5] 1-5] 20 10-0 Td. 21 032 || 45-0} 42-7| 2.3]) 1-2] 0-7] 20 || 23:—:—|| 10-0 Id. 22 050 | 45-4 | 43.2} 2-2] 1.3] 0.7] 20 | 22:—:—J|| 9.8 || Scud; cirro-strati and cirri. 23 045 || 45-7 | 43.4| 2-3] 1.2] 1-2| 20 |/25:—:22]) 8.5 || Ia; woolly cirri; cirro-strati. s) 10 0 || 30-042 || 46-7 | 44.4] 2.3]) 2.7] 1.5| 292 ||94:—-90 5:5 || Scud and cirro-stratous scud ; woolly cirri. (2) 1 031 || 47-8 | 45-3) 2-5]/ 1.3] 1-7] 20 | 20:24:—|| 8.0 || Loose scud 3 loose cirro-strati ; drops of rain. 2 013 || 48-2} 45-8} 2.4]) 2.6] 1-3] 20 || 20:24: — 8-5 Id. ; id. ; woolly cirri. (s) 3 009 || 47-8} 45-3} 2.5]) 1-4] 1-1] 21 || 21 :20:— 9-5 Id. ; id. ; id, 4 018 || 47-6} 45-4) 2-2]' 1-3) 0.5] 20 ||21:24:—|| 9.9 Id. ; id. 5 010 || 47-0} 45-4) 1-6]) 1-2] 0-3] 20 || —:24:—]] 10-0 || Cirro-stratous scud. 6 O11 || 47-3} 45-6} 1-7]! 0-5} 0-3} 20 9-5 || Cirro-cumulo-strati; cirro-strati. 7 007 || 47-4} 45-6! 1-8] 0-7] 0-1] 18 10-0 || Seud and cirro-strati. 8 017 || 47-6| 46-0} 1-6] 0-1] 0.0] 18 9-8 Id. 9 O11 || 48-0} 45-8} 2-2} 0-3] 0-3] 21 || 24:25 -— 7-0 || Scud; cirro-cumulo-strati. »)) 10 026 || 47-2) 45-6} 1-6 | 0-5} 0-0) 18 9-0 | Id.; id. 11 030 || 47-3| 45-0) 2-3] 0.2| 0.2] 20 9-0 || Cirro-cumulo-strati and cirrous haze. } 12 051 || 46-5 | 44.7/ 1-8 0-2) 0-1] 20 || 24:25:—| 9-0 || Seud; cirro-cumulo-strati. ») 233) 30-057 || 38-7| 38-0] 0-7|| 0.2] 0-0 20:—:—|| 3-0 | Loose seud; patches of cirri. 1119 || 29-765 || 41-0 39-7] 1-3] 0-5] 0-1] 16 10-0 || Scud and cirro-strati. 20 752 || 40-5 | 39-0} 1-5] 0-2] 0.2] 17 10-0 Id. 22 742 || 39-9| 38-5] 1-4]] 0.2] 0-1 16 || 21 :—:—}| 10-0 Id. ; hazy. 12 0 722 || 40-1| 38-2! 1-9|/ 0.2] 0-1] 20 || 22:—-+:—|| 10.0 Seud ; cirro-strati and cirrous haze ; traces of a halo. motions of the three strata of clouds, MAG. AND MET. oBs., 1846. The direction of the wind is indicated b: Sc. (seud), C, Jan. 946%, Observations made at 6h 15m, --8. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. y the number of the point of the compass, reckoning N. = 0, E. = 8,8. =16, W.= 24. The 358 DAILY METEOROLOGICAL OBSERVATIONS, JANUARY 12—18, 1846. THERMOMETERS, Gott. Baro- Mean || METER Time. || at 32°. | Dry. | Wet. 1 | 18 || 29.518 || 33-0] 32.4 20 531 || 34-3} 33-7 22 544 || 37-5| 37-1 17 0 543 | 43-6| 43-3 2 533 || 43-9| 43-0 4 535 | 43-5| 42.3 6 || 538 | 43-0] 42.0 8 || 545 | 42-9] 421 10 || 550 || 42-6] 41-6 234) 29-515 abe 40-3 18 18 || 29-197 | 39-1} 37-9 20 | 139 | 39-2} 37-9 Species of Clouds and Meteorological Remarks, poe NOK CHO DENAHOS Seud and cirro-strati. Woolly and mottled cir. ; cir.-str, and cir. haze on hor. Cirri, cirro-strati, and cirrous haze. Loose scud ; cirro-strati. [halo. } Woolly cir., cir.-str., and cir. haze ; portion of a lunar Cirro-strati and cirro-cumulo-strati ; cirrous haze. =} Send, cirro-strati, and cirrous haze. Woolly cirri; cirro-strati ; slight fog. [miles off. @ Fog ; cir.-str. ; cir. ; cirrous haze ; objects invisible two Patches of seud, nearly as at 0"; drops of rain. Homogeneous mass ; rain’? Scotch mist ; cir,-str. ; Venus visible through the clouds. | Cirri and cirro-strati. Masses of scud to E.; cirro-strati and cirrous haze. Cirro-cumulo-strati and cirro-strati. >} Nearly homogeneous ; dense fog. Loose smoky scud ; cirro-cumulo-strati ; slight fog. Cirro-cumulo-strati ; cirro-strati ; haze. Td. ; id. ; id. | Loose scud ; mass of cirro-stratus. Scud and cirro-stratus. Id. Id. ; cirrous haze. Seud ; cirro-cumulo-strati ; cirrous haze. a Seud and cirro-strati round horizon. d Seud ; varieties of cirro-strati ; sheets of cirri. Id.: dense cirro-strati; shower since last observation. Tis id. Cirro-stratous seud ; wavy cirro-strati. Id. Cirro-strati on horizon ; clear. Cirri. Cirro-cumulo-strati. > Dense fog ; objects invisible at 200 yards. itd; id.; apparently blue sky above. Fog ; objects invisible at 300 yards. Tdis id. Dense fog ; objects invisible at 200 yards. Id. ; id. Fog clearing off a little ; one or two bright stars visible. Fog. Seud and cirro-cumulo-strati ; slight fog. Fog ; objects invisible at 200 yards. Id. ; objects invisible at 400 yards. Send ; cirro-strati. Id.5 id. Tals id. ; cirro-cumulo-strati. Dense homogeneous mass of clouds. Id. Id. Thick seud. Seud and cirro-strati. es The direction of the wind is indicated by the number of the point of the compass, reckoning N. = o, E. = 8) 87= 16, W. = 227 ae motions 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° me oD; in 18 22 || 29.077 19 O || 28-999 2 901 4 819 6 759 8 682 10 625 18 || 28-504 20 524 22 570 20 0 605 2 679 4 754 6 810 8 853 10 || 28-894 18 || 29-015 20 027 22 029 21 0 031 2 || 29-019 4 || 28-987 6 946 8 906 10 829 18 || 28-498 20 502 22 513 22 0 568 2 646 4 721 6 772 8 802 10 802 18 || 28-838 20 845 22 869 23 0 868 2 857 4 860 6 879 8 900 10 || 28-911 18 || 29-051 20 098 22 157 24 0 204 2 223 4 237 6 274 8 264 10 | 220 232!| 28-815 DaiLy METEOROLOGICAL OBSERVATIONS, JANUARY 18—24, 1846. 359 THERMOMETERS. 41-7 41-6 39-0 38-8 38-0 42.4 45-7 | 43-3 39-8 39-4 38-7 50-2 Wet. 39-0 38-5 38-3 48-0 Diff. WWE EEE OS AOowdIdHs Ha ww w ShHHKOnNIS $A 0-9 0-4 2-2 Max yyy WIND. imum force in | Prom 0-1) 20 0-4| 18 Clouds, Se.:C.-s.: Ci., moving from 30:—:— 22:22:— 20: 20: — 21:—:— piace? Species of Clouds and Meteorological Remarks. 0—10. 10-0 || Thick seud. 10-0 Id.; dense homogeneous cirro-strati. 10-0 Id. ; id. ; rain?” 10-0 || Scud; dense mass of cirro-strati. 10-0 Id. ; id. ; rain”? 10-0 || Dark. 10-0 | Id. 10-0 | Fog, objects invisible at + of a mile. 10-0 || Ia., id. 200 yards. 10-0 || Scud ; homogeneous cirro-stratus ; rain’? 10-0 || Thick secud; drops of rain. 10-0 GUE rain! 10-0 Id. ; id. 10-0 Id. ; rain?” 10-0 Id. 10-0 Id. 0-2 || Cirro-strati on S. horizon. ») 0-5 || Seud and cirro-strati on S. and E. horizon. ») 0-8 || Scud and masses of cirro-strati on horizon. (o) 7-0 || Woolly cirro-strati and cirri; seud on horizon. 3) 8-5 || Cirro-stratous seud ; cirro-strati and cirri. ! 9-5 || Dense mass of cirro-stratus. 7-0 || Cir.-str. and cir.-cum.-str.,in bands lying from W. to E. 10-0 || Cirro-strati and cirrous haze. 10-0 Id. 10-0 || Scud; rain! 10-0 Id.; rain? 10-0 || Clouds homogeneous ; drizzling rain” 10-0 Ih id. 10-0 || Scud; dense cirro-stratus ; rain”? 10-0 Tay id. ; rain?” 10-0 || Scud and dense cirro-stratus. 10-0 Id. [clear about 9. 10-0 Id.; drizzling rain’’; the sky was partially 1:0 || Scud and cirro-strati on horizon. »)) 9-5 || Scud and cirro-cumulo-strati. al 9-8 || Scud and cirro-strati; rain”? 9-8 Id. 7-0 || Scud; cirro-strati; woolly cirri. 9-0 Id. ; id. 10-0 || Cirro-stratous scud. 10-0 || Scud and cir.-str, ; a few stars indistinctly visible. 9-7 || Scud and cirro-strati ; rain”” 10-0 || Seud. 9.8 || Cirro-cumulo-strati. 4.0 tds patches of cirri. 9-7 Id. 3-5 || Cirro-strati and cirro-cumulo-strati. 0) 1-0 Td. on horizon. (o) 3-0 || Seud. 9-7 Id. 4-0 || Cirro-strati and haze. Scud and masses of watery cirro-strati. 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, Se. (scud), .-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. 360 ] | THERMOMETERS. WIND. Gott. || Baro- | - Mean || METER Maximum Time. || at 32°. || Dry. | Wet. | Diff. || force in |Pyom . )10™. Pd SS eoeoeoooes BREAN NEFNARONNW DO RR ENR Ree Oo: Heads aAwawe DN en SO ll ee ell 2 el Bl el NboOhoh we HdOWhHOwoaad Poooocoo oeeeerFrese?e & Sp OC ES RO Isr aQounnwnr 10 | Clouds, Sc.: C.-8.; Ci, moving from Sky clouded. Darty METEOROLOGICAL OBSERVATIONS, JANUARY 25—31, 1846. Species of Clouds and Meteorological Remarks. Seud and cirro-strati. Id. Seud; thin cirri and haze. Seud and cirro-strati; slight shower. 1fe156 id. Seud ; cirro-strati and cirri seen above. Id. Scud and cirro-stratus. Td. Seud ; hazy. Id.; cirro-strati. ats id. Id. ; id. de: id. ; drops of rain. .; 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?—* {halo.@ Id.; woolly cirri, cirrous haze, and cirro-strati; solar Id.; cirro-strati and cirri. Id.; thick woolly cirri; eirro-strati. Seud and cirro-strati. Td. Td. Seud and cirro-strati; stars dim. Scud. } Seud; dense mass of cirro-stratus; drizzling rain”? Id.; cirro-strati; cirri. Id.; woolly cirri; cirro-strati. @ Id.; mass of cirro-strati. Id. »)) Id.; cirro-strati. fds = id. Seud. [especially to E. Seud and cir.-str., cloud tinged red over the whole sky, Dense cirro-stratus, nearly homogeneous. Scud ; cirro-strati. Id. ; id. Seud ; mass of cirro-strati and cirrous haze. Patches of scud, cirro-strati, and cirrous haze. Cirro-strati and cirrous haze, Id. Send and cirro-strati; rain’? Id. Scud ; dense cirro-stratus. Lala id. Id. ; id. ; drops of rain. Loose scud moving rapidly; woolly cirri; cirro-strati. Scud ; rain occasionally since last observation. Id.; rain?? 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), ©.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Dartty METEOROLOGICAL OBSERVATIONS, JANUARY 31—FEBRUARY 7, 1846. 361 THERMOMETERS. WIND. Clouds Gott. pee 5 Se. : C.-s. Ci Sk 2 s Mean || METER Maximum Moe |elod aa a Species of Clouds and Meteorological Remarks. Time. || at 32°. || Dry. | Wet. | Dif.|| force in |From|} "tS i 14, |10™. d oh. in. | ie c ei Tbs. | Ibs. | pt. pt. pt. pt. |} 9—10. 31 232)| 29-390 || 44-8) 40-5] 4-3) 3-1] 0-6| 23 || 24:—:—}} 10-0 || Thick seud. 118 || 29-378 || 39-5| 37-7] 1-8|| 6-1| 0-1) 22 3-0 || Cirro-strati. 20 421 || 37-5| 36-4) 1-1|| 0-2} 0-1| 20 6-0 Id. and woolly cirri. 22 458 | 40-4] 38-4) 2-0|| 0-5) 0-7| 26 4-0 || Cirriand cir.-str., generally lying N by E. to S by W.© 20 508 || 44-3] 41-0| 3-3] 1-2) 0-3] 26 || 28:—:—j| 0-5 || Patches of cumuli and sheets of cirro-strati. (0) 2 510 || 46-3] 42-2) 4-1|| 0-9] 0-8] 23 || —:28:— 4-0 || Cir.-str. and cir.-cum.-str.; masses of cum, on hor. © 4 540 || 45-8} 42-0] 3-8] 1-0] 0-3} 24 | 24:—:— 9-8 || Scud; mass of cirro-strati, 6 551 || 44-9] 40-1! 4-8 || 0-3) 0-2] 20 9-9 || Dense cirro-stratus. 8 562 || 44-5| 41-2] 3-3|| 0-4) 0-3) 23 || 10-0 Id. 10 565 || 42-9) 40-6} 2-3] 0-4| 0-1) 18 9-8 || Cirro-strati and cirro-cumulo-strati. 18 || 29-457 || 45-9] 44-4] 1-5|| 0-8] 0-1) 17 10-0 || Scud and cirro-strati; dark. 20 422 || 46-6} 45-0} 1-6] 0-5] 0-1) 28 | 21:—:—|] 10-0 || Scud; cirro-stratus. 22 389 || 48-1} 47-1) 1-0)| 1-7| 0-4) 18 |) 10-0 || Dense homogeneous mass of clouds. 3 0 323 || 50-4] 48.3] 2-1]| 1-1] 1-0) 18 || 19:—:—|| 9.9 || Scud. 2 247 || 50-7) 48-4) 2-3|/ 0-8| 0-5) 19 || 20:—:—J] 10-0 Id. 4 138 || 49-3| 46-3] 3-0] 3-4] 3-0) 19 || 20:—:—|| 10-0 || Id.; mass of cirro-stratue 6 026 || 48-4} 46-8] 1-6|| 6-8) 3-3] 20 10-0 || Scud; rain”; stormy. 8 119 || 44-8) 42-1) 2.7|| 7-0} 1-1| 22 ||} 25:—:—]| 3.0 10 206 || 42-8) 39-3] 3-5 || 2-3] 2-2) 21 2-0 18 | 29-453 |) 35-6} 34-7| 0-9|| 2-8| 0-8| 21 10-0 || Scud; rain! 20 472 || 33-7| 33-5) 0-2}) 0-8) 0-2) 21 1-5 || Id. and cumuli on S. horizon; snow on the ground. 22 513 || 36-0} 34-9} 1-1] 0-9) 1-1] 22 ||24:—:—J]] 1-0 |) Loose seud. 40 543 || 39-6) 37-4| 2-2] 0-9| 1-2) 20 || —:26:26]| 1-0 || Woolly cirri and cirro-strati. 2 547 || 42-3) 38-6] 3-7]| 1-8| 1-0] 21 2-0 || Scud and loose cumuli; cirri and cirrous haze. {o) 4 555 || 41-8) 39-0} 2-8] 1-7| 1-4] 20 || 23:—:—|| 8-0 || Seud; cirro-strati and cirrous haze. 6 544 || 41-6} 39-0| 2-6] 1-5] 1-0) 20 || 23:—:—] 8-0 Tass id. } 8 550 || 40-4) 38-8] 1-6] 1-0] 0-2] 21 10-0 || Homogeneous cirro-stratus and cirrous haze. >} 10 543 || 39-5| 37-4] 2-1] 0-9] 0-2} 21 7-0 || Patches of scud ; cir. haze ; faint lunar halo and cor. }- 18 || 29-398 || 40-4} 38-6] 1-8] 1-0] 0-2| 21 10-0 || Scud and cirro-strati. 20 383 || 38-3] 37-0} 1-3 || 0-8] 0-3) 20 | 24:—:—|| 6-0 || Cirro-stratous scud ; loose scud ; cir.-str. ; drops of rain. ae 402 || 40-6] 38-4} 2-2] 0-5) 0-2) 19 || 25:—:—|| 7-0 || Scud; cirro-strati. 5 0 422 || 43-2) 39-0| 4-2]| 1-6] 0-9/ 21 || 24:—:26]| 2-5 Id.; cirri. (0) 2 445 || 43-3] 38-8) 4-5] 1-6} 0-3} 25 || 25:—-:—|| 4.0 || Seud and loose cumuli; linear cirri. 4 452 || 43-2) 38-9) 4-3]! --- | 0.5 25 :—:— 7-0 || Cirro-stratous scud ; cumuli and linear cirri. (0) 6 474 || 39-0| 35-7| 3-3]| 1-0) 0-2) 22 1-0 || Cirro-strati on horizon ; scud and cumuli to W. »)) 8 499 || 36-2} 34-3/ 1-9]| 0-8] 0.2| 17 5-0 || Woolly and mottled cirri and cirro-strati. 10 492 || 38-9| 35-8} 3-1] 0-5) 0-7) 22 9-5 || Thin cir.-str. and woolly cirri; portion of a lunar halo 18 | 29-526 | 35.7| 33-9| 1-8 | 0-9| 0.2] 19 0-5 || Clouds on 8. horizon. Fase comes 20 547 || 35-0} 33-5] 1-5]| 0-4] .. 4-0 || Loose scud ; cirri and cirro-strati; hazy. 22 555 || 36-3] 34-7| 1-6] 0-1| 0-1] 16 10-0 || Cirro-stratus and cirrous haze ; patches of scud. 6 0 563 | 40-8| 38-7) 2-1 || 0-9] 0-8] 18 10-0 || Scud; thick cirro-strati and cirro-cumulo-strati. 2 501 || 43-2} 40-7} 2-5]) 1-0] 1-1] 19 | 20:-—:—]] 10-0 Id.; dense cirro-stratus and haze; rain”? 4 418 || 40-7} 39-3] 1-4|| 2-5) 2.4] 19 10-0 || Loose seud ; ies rain? 6 364 |) 46-1/ 44-0) 2-1|| 2-1] 0-9| 20 | 23:—:—]| 10-0 || Scud; cirro-strati. 8 331 || 46-5| 44-5] 2-0|| 1-8] 0-5] 20 10-0 || Scud and loose cumuli; cirro-strati; drops of rain. 10 295 || 46-3) 44-6| 1-7 || 1-4] 1-5| 19 10-0 Id. ; id. ; id. 18 || 29-105 || 44-4| 40-4} 4-0 || 7-6] 4.5] 20 2-0 || Cloud on horizon. [showers ; wind in gusts. 20 064 || 43-0| 39-6) 3-4]|| 7-5] 5-9) 24 ||24:—:—] 9.9 || Scud; cum. and cir.-str. on 8. and E. hor. ; frequent 22 108 || 43-0} 40-3] 2-7 || 8-2| 3.3) 25 ||24:—:—}| 10-0 | Loose scud; rain'~*; very stormy. 7 0 156 || 44-0] 41-1] 2-9} 5-7] 2-7) 26 || 25: —:—|] 10-0 || Scud; the sky has been partially clear occasionally since 2 152 || 45-4| 41-9] 3-5]| 5-5] 2.2] 24 | 26:—:25 4:0 || Scud ; woolly cirri. (0) [238"; drops of rain. 4 222 || 45-3! 41-0] 4-3}) 5-5) 4-0] 24 |:25:—}| 9-0 |) Cirro-stratous scud ; cirro-strati and cirrous haze. © 6 412 || 40-0} 38-3) 1-7]| 5-0) 1-5} 28 10-0 || Nearly homogeneous; cir.-str. and scud ; drops of rain. 8 922 || 39-4| 37-2} 2-2/| 0-9} 0-4] 28 || 28:—:—|| 4-0 || Scud; slight showers occasionally. 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. (seud), ©.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Feb. 2454. Dense cirro-stratus moved up from about NW., in large regular waves, lying ENE. to WSW. MAG. AND MET. oss. 1846. 362 Dairy METEOROLOGICAL OBSERVATIONS, FEBRUARY 7—14, 1846. THERMOMETERS. | Wind. Olona Gott. || Baro- | — || —— gh Ge Cd ERE Mean || METER Maximum Sy ieee re A Species of Clouds and Meteorological Remarks. Time. || at 32°. || Dry. | Wet. | Diff. force in |Pyom| piece clouded. 1b, ,10™, | a bh. in. : s) © i Ibs. | Ibs. pt. || pt. pt. pt. 0—10, 7 10 | 29-588 || 36-0) 34-0} 2-0|| 1-1] 0-0) 20 || || 2-5 || Cirro-strati. y 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. 20 039 | 34-5) 32-6) 1-9}| 0-7} 1-0} 31 2:—:—|| 2-5 Id. ; cumuli on horizon ; nimbi on E. horizon. 22 076 | 36-0} 33-0} 3-0|| 2-0} 1-0} 30 ||—: 0:—||} 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 Tides heavy shower of snow about 22" 40™, 2 | 110 || 33-6} 32-7} 0-9] 1-7] 0-7) 0 8-0 || Snowing heavily since 1", just ceasing, clouds clearing 4 121 | 35-0} 33-5] 1-5] 2-5| 1-6] 1 10-0 || Seud; hail. {off from N. 6 132 | 33-2} 32-6| 0-6|] 2-6] 0-4] 31 | || 3-0 || Send, nimbi,cum.,and cir.-str.; snowing heavily till 5®. ) 8 163 || 31-8} 31-0} 0-8|| 1-0] 0-1] 30 || 2:—:—|| 2.0 || Scud and loose cumuli; snow about 7°. y 10 186 || 29-3} 28-6} 0-7]| 0-1] 0-0} 4 2-0 Id. y 18 | 30-238 || 26-3] 26-3] --- || 0-0] 0-0} 24 || 4-0 || Scud and cir.-cum.-strati; occasionally a few flakes of 20 | 254 || 25-8) 25-6) 0-2|) 0-0] 0-0} 24 10-0 || Homogeneous ; slight snow. [snow. 22 | 268 || 29-2| 29.4] --- || 0-0} 0-0 | 9-8 Id.; fog to N., objects invisible at } a-mile dis- 10 0 268 || 35-0) 32-7] 2-3]! 0-0| 0-0} 22 9-8 || Cir.-str. and cir.; foggy. [tance ; snow 4} in. deep. 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. y 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:—:—]}| 5.0 | Ia; ia. [and cum.-strati on E. hor. 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. ; cir.-str. 11 0 | 896 || 41-5} 38-7] 2-8) 0.4) 0-3) 28 | —:—:29 8-5 || Woolly cirri; cir.-str. and cir. haze ; a few patches of 2 | 896 || 43-8} 40-0} 3-8 || 0-5| 0-1} 25 9-5 || Thick mass of cirro-stratus. @ ([scud on hor. © 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 | Id. ; 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.; haze. © 12 0 926 || 41-3} 39-0] 2-3)| 0-2} 0-2] 21 2-0 || Cirro-strati, woolly cirri, and cirrous haze. (0) 2 930 || 45-5) 42-0} 3-5]| 0-2] 0-1] 19 3-0 Id. ; eumuli. © 4 891 | 46-9| 42-6) 4-3)) 0.2] 0-1} 24 | 5-0 || Woolly cirri and cirrous haze ; cumuli. (0) 6 884 || 43-7| 40-4} 3-3|] 0.2} 0-1] 20 || 25:—:—)}) 6-5 || Scud and loose cum. ; cir.-str., woolly cirri, and cirrous 8 880 | 42-3) 39-8} 2-5|| 0-1} 0-1} 20 10-0 || Mass of cirro-stratus. [haze ; clouds tinged red. 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 cirri. 22 863 | 39-3) 37-7| 1-6|| 0.2) 0-1] 21 3-0 || Cirri ; cirro-strati; patches of seud. (0) 13 0 874 | 43-7| 41-5] 2-2]| 0-8} 0-2) 24 | 2-0 || Seud, cirro-strati, and haze on horizon. 2 869 | 47-3| 43-3| 4.0)| 0-3| 0-1] 24 ||/29:—:—|| 3-0 || Loose cumuli and cumulo-strati; cirro-str. and haze.© 4 865 | 47-0) 43-2| 3-8] 0-3] 0-4] 26 || 28:—:—) 3-0 | Id. ; bands of cir.-str. to NE. ; loose seud ; 6 861 | 44-1) 40-6) 3-5]) 0-3) 0-1) 26 2-0 || As before ; clouds tinged red. {eirrous haze. © 8 863 | 40-6| 38-2) 2.4|] 0.2] 0-1] 26 | 1-0 || Cirro-strati to NE. 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 seud. 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 || Id. ; bands of cir.-str. to NE. ; cum. to 8. ; 4 958 |) 45-5} 41-7) 3-8] 0-1| 0-0) 24 || —:31:—|| 8-0 || Cirro-cumuli. {haze on hor. 6 978 || 43-5] 40-4! 3-1]| 0-1| 0-0] 22 || —:31:—|| 9-9 Ta. The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, BE. = 8,8S.=16,W.= 24. The motions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and (i. (cirrus), are indicated in a similar manner. Feb. 9418". Observation made at 184 9m, Feb. 134185. Observation made at 18) 6m, Daity METEOROLOGICAL OBSERVATIONS, FEBRUARY 14—21, 1846. 363 THERMOMETERS. WIND. Clouds Gott. Baro- = Soe: ae “Ci Sk Mean || METER Maximum i ees .lleoudeld Species of Clouds and Meteorological Remarks. Time. |} at 32°. |! Dry. | Wet. | Diff. force in [Fyrom es | : 1b, | 10™ aay in. & ei G Ibs. | Ibs. | pt. pt. pt. pt. | 0—10. 14 8 || 29-986 || 43-2} 39-8} 3-4] 0-1] 0-1] 24 10-0 || Scud and cirro-stratus. 10 || 29-993 || 43-2] 39-8] 3.4] 0-2) 0-1] 26 | 10-0 || Scud. 15 0 || 29-996 || 44-8] 41-8} 3-0} 0-4] 0-1] 20 | 3-0 || Masses of scud and loose cumuli; cirro-strati. 18 || 29-941 |) 45-6] 42-5] 3-1] 1-5] 0-6} 26 10-0 || Thick cirro-stratus. 20 || 29-959 || 45-0] 42-3] 2-7|| 0.8] 0-1} 20 | 10-0 Id. 22 || 29-973 || 46-7| 43-7| 3-0] 0-3} 0-1) 22 || —: 0:—} 9-5 || Cirro-stratous scud; scud lying on Cheviot. 16 0 || 30-001 || 47-8} 44-3] 3-5 || 0-2/ 0-1] 18 | —:30:—J] 9-8 || Cirro-strati; patches of scud. 2 || 30-013 || 48-6] 44-4] 4-2} 0-1) 0-1) 23 | 9-8 || Wavy cirro-strati. 4 || 29-992 || 49-3] 45-4] 3-9] 0.1] 0-0} 23 || —:28:—|| 9-5 || Cirro-cumulo-strati. 6 986 || 44-0} 41-8] 2-2|| 0-0) 0-0) 20 || —:28:—]} 5-0 Id. ; cirro-strati; haze. 8 994 || 42-6} 41-2] 1-4]| 0-0] 0-0] 10 10-0 || Dark. 10 996 || 42-9| 41-4] 1-5] 0-0} 0-0] O 10-0 Id. 18 || 29-956 || 40-7} 39-4] 1-3] 0-1} 0-0} 18 9-8 || Scud and cirro-strati. 20 942 || 41-7| 39-3] 2-4]! 0-0| 0-0] 24 || —:24:—]| 9-5 Ta. 22 941 || 43-5] 41-0] 2-5} 0-1) 0-0 —:25:—| 8-5 || Cirro-stratous seud; woolly cirri; patches of scud. 17 0 910 || 47-0} 42-2) 4-8] 0-5] 0-3) 28 || 29:—:—}} 9-0 || Scud and eirro-stratous scud ; cumuli and cirri. 2 880 || 46-7} 42-0] 4-7] 0.4] 0-4] 30 9-9 Id. ; cirro-strati. 4 866 | 46-5} 42-4] 4-1] 0-3] 0-1] 28 || 28:—:—} 9-8 Id. ; slight shower to E. 6 847 || 44-5} 41-5] 3-0] 0-1] 0-1] 25 || —:29:—|| 10-0 || Dense mass of wavy cirro-strati. 8 836 || 43-2} 40-2} 3-0] 0-1} 0-0} 23 4-0 || Cirro-strati; clear in zenith. 10 830 || 42-2} 39-8| 2-4] 0-0} 0-0) 21 10-0 Id. ; dark. 18 || 29-776 || 39-7| 37-5| 2-2|| 0-1] 0-0} 24 9-5 || Cirro-stratous scud. 20 790 || 40-0} 37-9} 2-1]] 0-1) 0-0) 24 |, —: 0:—j] 10-0 Id. 22 797 || 42-0} 39-9] 2-1] 0-1] 0-0] 18 |} —: 0:—/) 10-0 Id. 18 0 809 || 45-5} 41-8] 3-7] 0-0] 0-0) 22 || —: 0:—] 10-0 Id. 2 800 || 49-2} 44-3} 4-9|/ 0-1] 0-0) 22 || —: 0:—] 9-5 Td. 4 788 || 48:5| 43-4] 5-1] 0-1] 0-0 9-5 Id. 6 793 || 45-0! 41-2] 3-8] 0-1} 0-1) 21 | —:28:—] 8-5 Id. ; clouds tinged red to N. 8 788 || 43-9] 40-8] 3-1] 0-1] 0-1] 23 10-0 Id. ; dark. 10 787 || 42-1} 40-0} 2-1] 0-1] 0-0} 21 10-0 Id. ; id. 18 717 || 41-0} 38-6] 2-4]| 0-2] 0-1} 19 9-9 || Cirro-stratous scud ; clouds broken. 20 729 || 41-0} 38-2] 2-8]| 0-2) 0-1} 19 10-0 || Dense mass of cirro-strati. 22 735 || 42-9] 40-0| 2-9] 0-0] 0-0) 24 ||: 0:—/] 10-0 || Cirro-stratous seud. 19 0 748 || 46-0} 41-8] 4-2] 0-0} 0-0 —:30:—| 10-0 Id. 2 747 || 45-1} 41-6| 3-5] 0-1] 0-1] 18 10-0 Id 4 749 || 43-6] 40-4] 3-2] 0-2] 0-1] 24 10-0 Id. 6 754 || 42-5] 39-6} 2-9] 0-1| 0-0] O || 28:—:—J} 10-0 || Thickscud; dense cirro-stratous scud and cir.-str. above. 8 769 || 41-9} 39-1} 2-8] 0-0] 0-0 10-0 || Dark. 10 || 786 || 41-9] 39-2] 2-7] 0-0] 0-0} 20 | 10-0 || Ia. 18 || 29-796 || 39-3| 37-6] 1-7] 0-0} 0-0 10-0 || Dense cirro-stratous scud and cirro-strati. 20 801 || 39-0| 37-1] 1-9] 0-0} 0-0) 16 10-0 Id 22 804 |) 39-8] 37-9] 1-9] 0-1] 0-0} 20 10-0 Id 20 0 806 || 41-7} 39-2] 2-5|| 0-1] 0-0) 18 ||} —:24:—|} 10-0 Id. 2 769 || 44-5] 40-3] 4.2} 0-1] 0-0] 16 10-0 Td. 4 750 || 44-8} 40-0} 4-8] 0-1} 0-0} 16 || —:24:—J| 10-0 || Dense cirro-stratus and scud. 6 754 || 43-4} 40-0} 3-4] 0-1] 0-0] 18 10-0 Id. 8 747 || 42-8] 40-3] 2-5] 0-1] 0-0] 22 10-0 Id. ; dark. 10 739 || 42-3] 40-4] 1-9] 0-0] 0-0 10-0 Id. ; id. 18 || 29-684 || 46-6] 45-4] 1-2] 0-2! 0.2] 16 10-0 || Densely overcast; some rain has fallen during the night. 20 681 || 46-9] 45-6] 1-3]) 0-4] 0-1| 17 || 20:—:—|| 10-0 || Thick scud and cirro-stratus. 22 655 || 50-3] 48-4] 1-9|| 2-2| 2-5] 19 ||19:—-:—]| 9-8 || Scud; cirro-strati and woolly cirri. 21 0 670 || 50-6] 48-7] 1-9] 3-1} 1-4] 18 ||} 19:—:— | 10-0 Id.; dense mass of cirro-stratus ; slight drizzle. 2 640 || 52-4] 49-4] 3-0] 3-0} 1-4] 19 | 21:—:—| 10-0 Id. ; id. 4 648 || 51-3! 48-4] 2.9] 2-8] 1.4] 19 || 20:—:23]| 9-0 Id.; woolly, linear, and diffuse cirri; cirrous haze. 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. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. | THERMOMETERS, WIND. Clouds Gott. || Baro- : Se.: Ci-s.: Ci. Sk : Mean || METER Maximum moving -\elow aa al Species of Clouds and Meteorological Remarks. Time. || at 32°. || Dry. | Wet. | Dif. ei. From “from” da. h. in. a 3 Tbs. | Ibs pt. pt. pt pt 0—10. 21 6 | 29-703 || 48-5| 46-9] 1-6] 1-4) 0-9| 20 ||21:—:—|| 10-0 || Send; mass of cirro-stratus. 8 | 713 || 47-6] 46-0} 1-6]] 1-7) 0-2) 19 9-5 Id.; clouds broken. 10 || 697 || 45-8] 44-1] 1-7|} 0-2| 0-3] 19 8-0 || Id.; cirro-strati and haze; stars dim, 23}/ 29-380 | 52-3] 49-4] 2-9) 3-6) 3-1 16 (ee oan ida teen oa 22 18 | 29-363 || 51-1| 48-9| 2-2)11-0| 0-6) 20 | 10-0 || Very slight drizzle. 20 | 372 | 51-0| 48-7/ 2-3) 1-8| 0-1) 18 || 19:—:—}} 10-0 || Thick seud and cirro-stratus. 22 | 383 || 51-1| 48-9| 2-2) 0-3| 0-2| 22 |20:—:—|| 10-0 || Scud; cirro-strati above. 23 0 || 396 || 51-3) 49-0) 2-3|| 1-2) 1-1] 20 ||20:20:—|} 9-0 || ,Id.; cirro-cumulo-strati and cirro-strati. 2) 402 | 52.6| 49.8] 2-8) 1-4) 0-6| 19 |20:—:—]| 9-8 || Send and loose cumuli; cirro-strati. 4 || 390 || 52.3] 49-5] 2:8]| 1-1] 0-3| 20 |}20:—:—|]| 8-0 Id. 6 399 || 50-8} 48-9} 1-9|| 0-7| 0-2) 18 || 20:—:—] 9-9 Id. 5 cirro-strati. 8 396 || 50-2} 48-5} 1-7|| 0-2) 0-2) 18 10-0 || Scud; a few drops of rain. 10 366 || 48-2] 47-3] 0-9|| 0-1] 0-0} 20 10-0 Id. 18 | 29-169 || 50-2} 49-2} 1-0|) 1-7| 0-1) 18 9:8 || Send. 20 | 160 || 48-9| 47-6| 1-3)) 0-1] 0-1| 20 ||17:—:—|| 10-0 Id.; woolly cirri and cirro-strati. 22} 110 || 53-5} 50-6| 2-9] 0-6| 0-4) 20 || 16:—:—|| 10-0 Id.; woolly cirri. 24 0 || 063 || 54-0| 51-9| 2-1|| 2-3} 1-9] 20 |}18:—:—] 10-0 Id. ; id. ; passing showers. 2 077 || 54-2} 52-2} 2-0 | 2-4) 1-7) 18 ||}17:—:—|| 9-0 || Seud and loose cum. ; woolly cirri ; showers”? since last 4 073 || 54-2) 49-5] 4-7|| 3-7) 1-9] 18 || 18:—:20]) 9-8 || Scud; woolly cirri and cirro-strati. [observation. 6 069 || 50-4| 47-5} 2-9|| 2.4] 0-1| 18 ||}18:—:18] 7-5 Id.; woolly cirri; cirro-strati. 8 | 29-052 || 50-8] 48-2] 2-6] 0-1| 0-1} 20 10-0 Id.; dark; rain! 10 | 28-974 || 53-0} 51-4 1-6) 2-0] 1-0| 14 10-0 Id.; id.; rain®® 18 | 28-880 || 49-8| 46-6 3-2| 2-8} 1-2] 17 10-0 || Scud and cir.-str.; occasionally a few drops of rain. 20 || 880 || 48-1] 46-6} 1-5}) 1-9) 0-5) 17 |) 17:—:— 9-5 || Seud ; cirro-strati. 22 |} 863 || 49-5| 48-2} 1-3 || 2-9| 1-6| 17 || 18:—:—]| 10-0 Td: id. 25 0 || 28-931 || 51-7| 49-2} 2-5 |) 3-8} 2-1) 18 || 20:—:— 9-9 dys id. ; cirri. 2 || 29-014 || 51-4] 48-6] 2-8|| 2-2] 1-2) 20 ||21:—:—}) 10-0 || Scud and loose cumuli; cirri and cirro-strati. 4 || 076 || 51-2) 48-3} 2-9|| 2-6] 1-4] 20 ||}20:—:—]| 10-0 || Scud; cirro-strati ; rain” 6 || 157 || 48-8| 47-2] 1-6 0-9} 0-7} 20 || 22:—:—]] 10-0 Id. ; id. ; rain® 8 || 252 | 45-0} 42-3] 2-7] 1-8] 0-4] 20 10-0 Id. ; id. [tremity of an auroral arch. 10 || 295 || 43-8} 42-0} 1-8]] 1-3] 0-8} 18 0-5 || Patches of seud; long streak of cir.-str. from the E. ex- 18 || 29-386 || 43-3] 41-9] 1-4/] 1-0] 0.0) 18 9-9 || Scud and cirro-strati. 20 380 || 43-3] 41-2) 2-1 || O-1) 0-1 20 | 20: 20:— 9-7 Id. 22 381 || 47-2} 44-0} 3-2 | 0-2} 0-4] 18 || 20: 20 :— 9-0 Id. ; woolly cirri. (s) 26 0 | 368 || 51-7| 48-1] 3-6] 1-5) 2-1} 17 || 20:18:— 9-5 || Seud; cirro-strati; drops of rain ; rainbow. 2 366 || 53-8| 49-8] 4-0|) 2-1| 0-6] 18 ||19:—:—|} 9-5 |! Scud and loose cumuli. 4 327 || 54-8] 50-6] 4-2]| 1-7) 0-6) 18 ||—:19:21] 6-0 | Cir.-str. seud; woolly cirri; cir.-str.; patches of scud. © 6 284 || 51-5) 47-9) 3-6) 1-8] 1-7} 16 || —:20:20}| 9-9 || Thick woolly cirri and cir.-str.; cir.-str. ; drops of rain. 8 281 || 50-7) 48-2) 2-5]; 1-4) 0.8) 15 10-0 || Seud; dark; rain! 10 | 286 || 50-9| 48-7] 2-2]) 1-2] 0.2] 15 8-5 || Id. 18 | 29-262 || 49-2| 47-0} 2-2]| 2-6) 0.3] 16 3:0 || Masses of seud and cirro-strati. 20 | 294 | 51-2) 48-3] 2-9]| 0-8] 0-3] 18 |/20:—:—-| 7-5 || Send. r=) 22 || 331 || 51-3) 48-7} 2-6)! 0-6| 0-1} 16 ||} 20:—:18]} 9-5 Id. ; thick woolly cirri; cirro-strati. e@ 27 01 367 || 55-2| 50-8} 4-4/| 0-4} 0-1} 16 || 20:—:—|| 10-0 Id.; dense mass of cirro-stratus and haze. e 2 374 || 57-5| 52-6| 4-9|) 0-2] 0-1] 16 10-0 || Thick mass of cirro-stratus ; patches of seud. 4 | 383 || 54-7| 50-6| 4-1|| 0-1] 0-0| 16 ||17:17:—]] 9-5 || Scud and dense homogeneous cir.-str.; sky to NW. 6 379 || 51-0| 49-0} 2-0|| 0-7) 0-1) 24 |} —:17:— 9-8 || Cir.-str. seud ; wavy cirro-strati ; shower 15™ since, 8 || 388 || 50-0] 47-3| 2-7|] 0-2] 0-1| 16 10-0 || Seud and cirro-strati. 10 | 382 |) 48-5| 47-2] 1-3|| 0-0] 0-0 | 6-0 Id. 18 | 29-359 | 45-9| 45-2| 0-7|| 0.0| 0.0] 19 0-5 || Cirro-strati on horizon, 20 | 366 | 45-0| 44-3} 0-7|| 0-0) 0-0| 18 ||17:—-:18]| 4-0 || Scud; woolly cirri. 22 | 382 I 50-0 48-4] 1-6|| 0-0! 0-0] 19 || —:17:— 8-5 || Cir.-cum.-str. and cir.-str. ; cum.-str. on E. horizon.© 28 0 | 392 || 56-6} 53-2! 3-4/| 0-0| 0.0] 18 || 19:—:—|| 10-0 || Scud; cirro-strati; cumuli and cumulo-strati. 2\| 393 || 55-2' 52.0] 3-2'| 0.4| 0-5! 16 !20:—:—lI 10-0 |) Id.; mass of cirro-stratus. The direction of the wind is indicated by the number of the point of the compass, reckoning N.=0; B= 8; 82— 16, W. = 24 5 ihe motions of the three strata of clouds, Sc. (scud), (.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Darity METEOROLOGICAL OBSERVATIONS, FEBRUARY 28—Manrcu 7, 1846. 365 THERMOMETERS. || WInD. Clouds. Gott. | Bano- : “|/Se.:C.-8.:0i,,| Sk Mean || METER | Maximum é Vet = a Species of Clouds and Meteorological Remarks. Time. | at 32°. || Dry. | Wet. | Diff.|| forcein [Prom pias clouded. | 14,|10™, | & a. h. in. ° ° © || ibs. | Ibs. | pt. |] pt. pt. pt. || oto. 28 4 | 29-417 || 51-2) 47-4| 3-8] 1-1) 1-0) 20 | 20:—:—|| 9-7 || Masses of ragged scud; dense homogeneous cir.-str. ; sky 6 462 || 50-0] 47-3} 2-7} 1-1| 0-1} 24 || 21:—:—1]] 10-0 ]] Scud; cirro-strati. [on W. horizon. 8 490 || 48-7| 46-8) 1-9]| 0-5] 0-2} 22 8-5 Id. ; id. ; sky in zenith. 10 518 || 48-4| 46-8) 1-6|| 1-0] 0-1] 22 10-0 Id. ; id. 234) 29-633 || 49-6} 46-5} 3-1|} 1-7| 0-3] 19 || 19:—:—|! 10-0 || Seud and cirro-strati. 118 || 29-387 || 48-8] 45-9} 2.9}; 2-8/ 2-0} 20 9-8 || Seud. 20 445 || 46-1| 43-9} 2.2) 3-2) 0-6) 20 || 20:—:—|| 4.0 Id. 22 464 || 47-7 | 44-2) 3.5|| 2.6] 1-6) 20 |, 22:—:—|| 3-6 |] Scud and loose cumuli 3 cirro-strati. © 20 497 || 50-7| 46-2| 4.5] 1-2] 0-8] 18 |} 21:—:—]| 25 Id. ; id. © 2 483 || 52-3) 46-7| 5-6|| 1-7) 0-2] 17 || 19:—:—]| 9-0 Id. ; woolly cirri; mass of cir.-str. 4 423 || 50-3 | 45-2) 5-1) 1-1/ 0-2) 16 9-9 || Nearly homogeneous mass of cirro-stratus. 6 370 47-2} 43-6| 3.6|| 2-6] 1-7] 17 ||} 18:—: 17 8-0 Smoky scud ; woolly cir. ; sheets of cir.-str.; cum.-str. on S. hor. ; cir. 8 326 45-9| 43-2] 2.7/1 1-5] 2-3) 16 || 18:—:— 8-0 Seud ; cir-str. ») (haze; clouds tinged yellow; sky stormy-looking. 10 298 || 45-4] 43-3) 2-1]| 1-6] 1-4] 18 10-0 dies) ads; rain! ) 18 | 29-245 || 43-0| 41-6} 1-4|| 2-2] 1-5] 17 10-0 || Scud; rain 20 219 || 45-0} 43-4} 1-6|| 2-8] 0-9| 16 | 18:—:—} 10-0 || Loose scud; homogeneous mass of cirro-stratus ; rain! 22 198 | 49-4) 48-5) 0-9} 2-7) 1-3) 18 || 19:—:—] 10-0 || Scud; dense mass of cirro-stratus ; rain! 3.0 193 |) 51-7} 50-1) 1-6} 1-6] 0-5} 18 || 19:—:—J| 10-0 Takis id. ; rain?? 2 160 || 52-4] 50-1} 2-3 || 3-3) 2-2) 18 || 19:—:—J] 10.0 Tas id. 4 141 || 52-3| 50-0} 2-3] 3-2) 3-8] 18 || 18:—:—|| 10-0 Id. ; id. ; rain®.> 6 128 || 50-8} 49-1| 1-7]) 2-4] 0-8} 16 || 18:—:—]| 10-0 Id. ; id. ; id. 8 100 || 50-6| 48-8} 1-8]| 2-8] 1-4} 19 10-0 Id. ; id. ; id, 10 || 29-052 || 50-7 | 49-0) 1-7|| 2-6) 1-8] 17 10-0 Id. ; id. ; id. 18 || 28-740 || 50-3| 47-6} 2-7|| 8-4] 4.1] 16 10-0 || Scud and cirro-strati. 20 708 || 49-5 | 47-5| 2-0) 5-8] 2.3) 17 || 18:—:—|| 9-7 || Scud: rain” ; stormy. 22 705 || 49-8] 44-8} 5-0||10-7| 9-4] 16 ||19:—:—|| 9.0 || Ia. and loose cumuli. © '4 0 787 || 49-3] 44-9| 4-4/|10-5| 4.2] 18 || 20: 20:—|| 8.5 || Scud; cirro-stratous scud. (>) 2 824 || 48-3/ 44-0/ 4.3] 8-0) 0-2} 18 || 21:—:—|| 8.5 |] Scud and loose cumuli. 4 940 || 48-4} 44-0) 4-4]| 3-1] 1-6] 19 || 20:—:—|| 3.0 IKES streaks of cirri. © 6 || 28-998 || 44-4) 42-0| 2-4] 2-1) 0-4] 19 ||20:—:—|]| 4.0 Id. ; id. ; eum. to N. 8 || 29-042 || 43-7| 41-4| 2-3] 0-5] 0-6} 19 4-0 || Seud. ») 10 082 | 43-0} 41-6} 1-4} 0-4] 0-1] 18 ||} 20:—:—]| 6.0 Id. } 18 || 29-148 || 38-7 | 38-2| 0-5 || 0-5] 0-0| 17 2-5 || Send. 20 176 || 41-1] 40-3/ 0-8 || 0-0} 0-0] 20 |) 21:—:— 7-0 Id. (0) 22 197 || 45-3} 43-2] 2-1]/ 0-1} 0-1] 19 ||}19:—:—]] 8.0 Id.; cirro-strati. 5 0 216 || 47-5} 44-2] 3-3]| 0-7] 0-4} 21 || 22:—:—]| 4.5 Id. ; cumuli and cumulo-strati; nimbi to E. © 2 215 || 49-5 | 43-2} 6-3]) 1-0] 0-2] 20 ||20:—:—|| 2.5 |! Loose cum. ; piles of cum. ; cum.-str. ; nimbi on S. hor.© 4 238 || 49-3 | 43-4) 5.9]| 0-9] 0-3) 20 || 22:—:—|| 92.0 || Cumuli; streaks of cirro-strati. 6 254 || 44-5| 41-2) 3-3|| 0-4] 0-1] 90 0-2 || Send and cumuli on N. horizon ; streaks of cirri. (0) 8 280 || 40-0} 37-8) 2.2]| 0-2] 0-1] 92 0-0 |} Quite clear. »)) 10 293 || 35-8] 35-0} 0-8]| 0-0} 0-0] 20 0-2 || Cirri to W. )) 18 || 29-256 | 32-8} 32-5] 0-3|] 0-0] 0-0} 24 10-0 || Cirro-strati; fog. [hoar-frost. 20 272 || 32-6] 32-4] 0-2]| 0:0| 0-0} 92 10-0 Id. ; id.; objects visible at 40 yards; much 22 278 || 36-0} 35-6} 0-4|/ 0-0| 0-0] 22 || —: 20 :— 9-9 || Cir.-str. scud ; mass of cir.-str. and woolly cir.; cum.-str. and haze on 6 0 291 || 43-6| 42.2) 1.4]/ 0-0| 0-0] 20 | —:21:— 7-0 || Cir.-cum.-str. and woolly cir. ; cum,-str. and cir. haze.Q (E. hor. @ 2 282 || 48-0| 42-7} 5-3|| 0-4] 0-4] 91 1-5 || Cumuli and cumulo-strati on horizon ; cirri to W. (0) 4 284 || 46-2| 41-8] 4.4]| 0-7] 0.2] 19 ||121:—:—]) 9-5 || Thick scud 3 cirro-strati. 6 268 || 43-4) 41-2) 2.2|/ 0-6] 0-2] 17 || 20:—:— 9.8 Id. ; id. 8 252 || 41-2 40-0| 1-2]| 0-6} 0-1) 17 || 20:—:—|] 9.0 || Scud and cirro-cumulo-strati 3 cirro-strati. _ 10 222 || 41-0| 40-0| 1-0]] 0-1] 0-3} 18 10-0 || Scud; rain? 18 || 29-275 || 39-4! 37-5] 1-9]} 1-2] 0-3} 22 8-0 || Scud and cirro-strati. 20 315 || 36-8) 35-7} 1-1]] 0-3} 0-0] 20 || 24:28:28]) 3.0 Scud; sheets of cirro-strati and woolly cirri. (>) 22 342 || 42-0) 39-0/ 3-0}| 0-7] 0.5] 21 ||24:—:—|| 3.0 || Seud; woolly cirri and cirro-strati. 0} 7 0 357 || 46-4| 41-5] 4-9]] 1-4| 0-7] 19 ||/24:—:—|| 6-0 || Scud and loose eumuli ; woolly cirri. (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. The motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. March 22 44 40™, The clouds were marked with hollows and hanging fragments ; heavy gusts of wind and drops of rain. March 34 2. Observations made at 2h 10m, MAG. AND MET. ozs. 1846. 47 366 Daity METEOROLOGICAL OBSERVATIONS, Marcu 7—13, 1846. THERMOMETERS. | WIND. Glouaa Saag femal eee Se.: C8. :Ci.,|| Sky ia a oad Sha ees | moving clouded. Species of Clouds and Meteorological Remarks. | 1b, )1lom, hey tacts — = | d. h. in. 2 2 2 Ibs. | Ibs. | 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. fo) 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.; cum.-str. 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. to N. 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:—-:—| 7-0 || Scud and cirro-stratus. 22 930 || 40-0| 38-7} 1-3 |) 0-0| 0-0) 22 |—:25:—|| 7-0 || Loose cirro-cumulo-stratus. 9 0 945 || 45-S| 43-0} 2-8}) 0-2] 0-1) 20 || 22:—:—]] 10-0 || Scud; 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:—:—j| 9-9 | Thick smoky seud; cumuli; cirro-strati. 6 || 29-969 | 47-0| 43-5] 3-5) 0-3) 0-0) 26 || 26: 30:— 7-0 || Seud; cirro-eumuli. 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-eumulo-stratus. } 18 || 30-087 | 42-0} 40-0} 2-0] 0-2) 0-1| 18 9-5 || Scud and cirro-strati. 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.-strati. 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 woolly eir. 10 O 084 || 50-2] 46-0| 4-2)| 1-4) 0-9} 20 || —:24:— 6-0 Cir.-cum.-str.,cir,-str.& cir. haze; patchesof scud; portion of ahalo, © 2 064 || 51-3| 46-4] 4-9} 1-7] 1-3] 22 |) 23:—:— 9-5 || Masses of scud and loose cum. ; cir.-cum.-str.; cir. haze. 4 056 | 49-2| 44-6| 4-6]) 2-5| 1-3} 20 | 20:—:—]| 10-0 || Loose seud ; sheets of cirro-strati. 6 029 || 47-0| 43-6] 3-4}) 1-1) 0-2| 22 | 20:—:—|| 10-0 | Patches of scud ; dense cirro-stratus and haze. 8 | 30-016 || 44-6] 42-1] 2-5 || 0-5| 0-2| 23 | 10-0 | Loose seud, cir.-str., and haze ; fine coloured lunar cor. 10 || 29-992 || 46-3] 43-4] 2-9 | 1-0] 1 1| 22 10-0 || Thick scud. [at 72 30". } 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. irom N by W- 92 217 46-5| 45-6] 0-9 || 0-6! 0-0 4i}—: 0:— 9-8 Cir.-cum.-str. ; patches of loose ragged cum. on hor. ; shower since 20 11 0 286 || 48-6) 44-4] 4-2] 0-8| 0-3) 4 | 5: 0:—|| 9-5 || Scud and loose cumuli; cirro-cumulo-strati. 8 2 303 || 48-5] 44-2] 4-3] 0-2) 0-0} 4] 8:—:—]| 4-0 Id. (o} 4 332 | 48-5] 44-0| 4-5) 0-2] 0-1! 7 |—:—:28]| 4:5 | Woolly and mottled cirri; cirro-strati. (0) 6 345 | 46-3] 42-6] 3-7|] 0-0| 0-0| 14 0:5 || Cirro-cumulo strati on horizon ; thin cirri over the sky. 8 || 352 | 39-5] 38-1] 1-4]) 0-0] 0-0) 18 | 0-3 || Thin cir, and cir. haze toeastward; very faint lun. halo. ) 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:—:—|| 10-0 || Cirro-stratous scud ; mass of cirro-stratus and haze. 22 332 | 48-1| 46-3] 1-8 |] 0-4| 0-4] 20 |21:—:—| 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; dense cirro-strati ; hazy. 2 | 261 || 52-6| 47-4) 5-2) 1-7| 1-1) 19 || 20:—:—1]| 5-0 | Seud and 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 cirro-strati. 8 | 165 | 45-0) 43-1] 1-9}) 3-0} 2-1) 20 4.0 Id.; woolly cir. ; paraselene to the north of the 10 | 149 | 47-1| 45-0} 2-1|| 2-3) 1-5] 19 | 9.5 || Thick scud and loose cumuli. [moon; broken halo, } | 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. fo} 4 || 906 | 52-2} 45-5] 6.7] 3-7] 3-0| 23 ||24:—:—] 85 Id. ; woolly cirri and cirro-strati. 6 911 | 47-3| 42.3| 5-0|| 3-1| 1-3) 21 || 24:28:28|| 8-0 || Scud; woolly cirri and cirro-strati. 8 | 915 | 45-4] 41-4] 4.0!| 1-3} 0-4} 22 | 8-0 l Cirro-strati and cirrous haze. 10) 907 | 44-5} 40-2] 43|| 0-3} 0-2] 19 | 95 || 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 ; cirro-str. scud ; cir.-str. and cirrous mass. 22 458 | 53-1| 50-0] 3-1! 2.5! 3-0| 23 || 24:-—:— || 10-0 | Thick seud. 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. Mar. 74 38, Great piles of cumulo-strati and nimbi ; also masses of nimbus having the appearance of flames, with occasionally small dark streaks of cirro-stratus below. Mar. 11. Humble-bee seen. Dainty METEOROLOGICAL OBSERVATIONS, Marcu 14—20, 1846. 367 THERMOMETERS. WIND. Folie | AER een se toe Cia Sky A tee y aan oe ethlipreeeliaee a moving cloned Species of Clouds and Meteorological Remarks. 14, | 10™. rea eet in. nd Ipes ° |! ibs. | Ibs. ] pt. |] pt. pt. pt. || O—10. 14 0 || 29-510 |) 52-0) 470) 5-0|| 4-1) 2-0) 24 || 25:—:—|| 9-7 || Scud and loose cumuli; woolly cirri and cirro-strati. 2 565 || 51-1] 45-6} 5-5|| 3-0) 0-8} 22 || 25:26:26] 8-5 Id. ; id. 4 568 || 49-8| 43-4] 6-4] 3-1] 2-6] 23 || 25:25:25] 6-0 Id. ; woolly cirri ; cirro-strati; cum. 6 593 || 46-2) 41-2) 5-0} 3-1) 0-5] 25 || 25:—:—|| 2-5 || Massesofscud and loose cum. ; woolly and mottled cirri. 8 628 || 43-0 | 38-4] 4-6]) 1-3] 1-2] 20 3-5 || Scud and cirro-strati. > 10 625 || 42-8) 39-4} 3-4]) 0-9} 0-3) 22 9-8 || Cirro-strati and cirro-cumuli. 234) 29-676 || 45-5| 40.9 4-6] 1-6] 0-1] 28°, 26:28:—|| 9.0. {Maser of send and loose cumeulis civro-cumulo-etrati; cirro-strat 15 18 || 28-923 || 47-0} 45-2| 1-8]| 4-1} 2-0) 19 || 20:—:—]| 10-0 || Scud and cirro-strati; rain”® 20 814 || 47-0| 45-8] 1-2) 3-7] 3-2} 19 || 21:—:—|| 10.0 || Scud; mass of cirro-stratus; rain! 22 783 || 43-6} 42-1) 1-5]| 3-8] 2-0] 22 | 22:—:—| 10-0 id. ; id. ; id. 16 0 745 || 46-2) 41-1} 5-1}| 3-5) 1-5] 20 || 22:—:—}]} 9-5 || Send and loose cumuli; cirro-strati and cirrous haze.© 2 692 || 40-6| 37-6] 3:0]| 5-5) 4-8} 21 |, 22:—:—]) 9.5 Id. ; rain? 4 591 || 45-0| 39-6} 5-4]| 3-8] 5-2] 20 | 22:—:—|| 4-0 Id. ; nimbi on hor. ; rain or hail to W. and N. 6 535 || 38-7| 36-6} 2-1]| 7-8] 4:0] 19 || 21:—:—|| 10-0 || Scud and nimbi; rain” and sleet. 8 492 || 39-2) 36-2) 3-0]) 7-4) 2:8) 19 | 23:—:— 1-0 | Scud. 10 533 || 39-8| 35-5| 4-3]/ 7-0] 3-4] 26 9-8 Id.; aurora seen through clouds. 18 | 28-974 || 33-2] 29-5| 3-7]| 4-2| 1-2] 24 1:0 || Bank of scud on E. horizon. y 20 || 29-050 || 32:4| 28-7] 3-7] 1-6] 0-2] 26 2-0 || Scud and cumuli on horizon; woolly cirri; haze. © 22 118 || 35-0| 30-1} 4-9] 0-4| 0-0) 22 || —:24:—1}) 7.5 |) Cir.-str. and cir. haze ; patches of scud ; cum. on E. hor. 17 0 144 || 35-5} 30-6| 4-9]] 0-8] 0-6] 22 8-0 || Scud & loose cum. to N. ; cir.-str. & cir. haze; sky to N. 2 150 || 36-5| 30-6| 5-9) 0-5| 0-3} 25 || 26: 24:—)| 6-0 || Cum.; cir.-str. and woolly cirri; ill-defined solar halo. 4 153 || 38-4) 31-7) 6-7|) 2-1} 1-2} 26 || 27:—:—|| 6-0 || Seud and cumuli; cirro-strati; cirrous haze. S) 6 168 || 36-2) 31.2) 5-0} 1-7] 1-3} 25 || 26:—:— 1-5 Id. (s) 8 195 || 34-8) 32-0) 2-8]) 2-5) 0-7] 28 10-0 || Thick seud; a few flakes of snow. [tion.- 10 237 || 32-4/ 31-9) 0-4] 1-6] 0-1} 28 10-0 || Dark; fine hail and snow occasionally since last observa- 18 || 29-306 |) 31-8| 31-2] 0-6]) 0-2) 0-1] 2 10-0 |} Homogeneous mass; snow 4% inches deep. 20 343 || 30-0| 30-4] --- || 0-1) 0-1} 3 10-0 Id. ; snow® 22 383 || 31-4| 30-0} 1-4] 0-5] 0-3} O 10-0 Id. ; snow’ ceased in a few minutes. 18 0 404 || 33-0} 31-7] 1-3]| 0-6] 0-2) Oo 10-0 || Cirro-stratus and cirrous haze. 2 406 || 33-0} 31-7| 1-3] 0-7) 0-4) O 10-0 Id. 4 413 || 31-6| 29-7) 1-9]| 0-5| 0-1) 30 10-0 Id. ; snow! 6 419 || 31-5) 29-9| 1-6] 0-6| 0-1| 0 10-0 Id. 8 422 || 26-6) 25-7} 0-9} 0-0| 0-0| 26 9-0 Id. ; sky on W. horizon. 10 427 || 25-0| 24-4} 0-6] 0-0! 0-0} 20 3-0 Id. 18 || 29-434 || 12-2} 12-3} ++» || 0-0] 0-0 1-0 || Cir.-str. and cirri on E. horizon ; mist above Tweed. ) 20 443 9-3} 10-0} --- || 0-0) 0-0 1-5 |} Cum., cirri, cir.-str., and haze on E. hor.; stratus in the 22 449 || 17-0| 17-0| --- || 0-0} 0-0 0-3 || Patches of cumuli on NE. horizon. © [valleys.© 19 0 446 || 26-3| 24-0| 2-3] 0-0] 0-0| 26 0-5 || Hazy on horizon; streaks of cirro-stratus to E. (0) 2 430 || 31-4] 28-5) 2-9]/ 0-0! 0-0} O 0-5 || Loose cumuli and cirro-strati on E. horizon. (0) 4 436 || 32-3] 29-2| 3-1]/ 0-0] 0-0} 2 0-8 || Cumulo-strati and haze on E. horizon. (0) 6 440 || 31-3] 28-9} 2-4|| 0-1) 0-0] 30 2:—:—]| 2-5 || Patches ofscud and cum.; cum.-str. on E. and N. hor.@ 8 440 || 27-8} 26-2} 1-6|| 0-0} 0-0 8-5 || Seud, loose cumuli, and cirro-stratous scud. 10 441 || 26-5] 25-6} 0-9] 0-0] 0-0} 24 | 10-0 | Light snow commencing. 18 || 29-452 || 26-3} 25-8] 0-5]! 0-2] 0-1] 26 5:—;:—|| 9-8 || Scud; cirro-strati. } 20 466 || 25-5| 24-2) 1-3) 0-2) 0-1} 28 || —:—: 4] 7-0 || Woolly cirri; cum.-str. and cir.-str. on horizon. 8 22 474 || 29-5] 27-6} 1-9|| 0-9] 0-3] 28 0-8 || Cirro-strati towards horizon. (0) 20 0 477 || 33-9| 31-2] 2-7]! 0-5) 0-3} 30 | 1-0 Id. 10) 2 491 || 36-4] 33-6] 2-8]| 0-9) 0-3] 30 | 2-0 Id. [O) 4 504 || 36-7] 34-6| 2-1]] 0-4] 0-1] 2 | 2.0 Id. (O} 6 509 || 35-0} 31-6} 3-4]| 0-1] 0-0! 2 0-8 || A few masses of loose cumuli and scud. 0) 8 508 || 25-7] 25-0) 0-7|| 0-0} 0-0] 17 | 0-2 || Haze round horizon. 10 489 || 23-6] 22-9) 0-7|| 0-0| 0-0] 18 | 0-0 Id. 18 | 29-236 || 30-7| 29.0) 1-7}| 1.2 0.4| 18 10-0 || Dense mass of cirro-stratus. 20 143 || 32-8| 30-2] 2-61l 2-7] 1-5! 16 10-0 || Nearly homogeneous. 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, March 164 2h, Heavy showers of hail since 14 30™ ; rain’? at present, with occasional flakes of snow. March 174 22h, Anemometer vane found frozen. 368 DatLty METEOROLOGICAL OBSERVATIONS, MArcu 20—27, 1846. ——— ee ee el | THERMOMETERS. | WIND. Cloud Ua ii ate Se.:0.-5:Ci)| Sk = | ney lay a ee ae moving P| aed: Species of Clouds and Meteorological Remarks. | | 1 | 10m, from @ hx Pea |e ° ° || ys. | Ibs. | pt. |] pt. pt. pt. |] o—10. 20 22 | 29-042 || 34-3) 31-5) 2:8 | 3-8| 3-6) 16 9-8 || Cirro-stratus and cirrous haze. 21 O | 28-950 | 34-8| 34-3 | 0-5 || 4-4) 3-1/16v. 10-0 || Snow? 2 | 882 || 35-0| 33-4] 1-6] 3-8] 1-3) 16 10-0 Id. 4 | 818 || 35-8| 34-8] 1-0] 6-2) 1-3) 17 ||17:—:—]] 10-0 || Scud; mass of cirro-stratus. e 6 | 776 || 37-1] 35-2] 1-9]) 2-8] 2-1) 16 3-0 || Scud and cirro-strati. 8 | 785 | 35-2) 34-4/| 0-8 || 1-4] 0-1! 20 || 20:—:—] 9-8 || Send ; several showers of rain since last observation. 10 | 759 || 33-4| 32-9| 0-5 |] 0-3] 0-0| 18 0:0 || Clear. 233| 28 ss | 42.5! 40-8] 1-7|| 1-7) 0-8) 17 || 18:18:—]] 10-0 || Seud; woolly cirro-strati; showers occasionally. 92 7 WGA ate EA sol lcede) eval] (TTR | alieseens | 18 || 28-786 || 31-0] 32-0] --- || 1-5 0-0) 18 | —:—:18] 4-0 || Woolly cirri; cir.-str. and haze; send on Cheviot. )) 20 | 788 || 35-8| 32-7) 3-1] 0-0| 0-0| 18 7-0 || Woolly cirri and cirro-stratus ; cirro-strati. (s) 22 | 800 || 39-7| 37-3] 2-4 | 0-0; 0-0, 16 || —:20:—| 7-5 || Woolly cirro-strati. 23 0) 806 || 44-8) 41-1] 3-7) 0-3| 0-1] 16 | 16:—:—J 5-0 || Loose cumuli; cirro-strati. (0) 2 813 | 42-0! 39-3] 2-7] 0-3] 0-2! 16 || 18:—:—|| 10-0 || Scud; thick cirro-stratus. 4 || 820 | 41-7| 39-2] 2-5|| 0-2) 0-2] 14 || 10-0 || Id.; id. 6 || 838 || 42-0) 39-8) 2-2) 0-5) 0-1) 16 || 18:—:—]| 10-0 || Id.; dense cirro-stratus ; shower’? 8 | 875 || 39-1] 38-1] 1-0) 0-3| 0-1} 15 Ve Ong at ide id. ; id. 10 | 892 | 38-6 38-0 0-6 | 0-1! 0-0) 20 | 9-7 Id.; rain? 18 | 28-949 | 35-2/ 35-0| 0-2) 0-1) 0-0 14 /—:20:—| 9-8 | Cirro-stratous seud and cirro-strati. 20 | 956 || 38-6! 38-1] 0-5 || 0-0| 0-0} 20 | 7-5 || Woolly cirri and cirro-strati. 22 | 975 || 42-8| 41-1| 1-7|| 0-0) 0-0| 23 || 19:18:—|| 9-0 || Scud; woolly cirro-strati. 24 0 983 || 50-3} 46-4] 3-9}! 0-1] 0-0} 14 || 15:16:— 9-5 dirs id. 2 || 983 || 49-4| 45-2| 4-2]| 0.2| 0-1) 16 /15:16:—|| 9-0 | Ia.; id. © 4 || 976 || 46-5| 42-8| 3-7] 0-2] 0-1| 18 || 16:—:—|| 9-5 |} Id.; cumulo-strati; cirro-strati; drops of rain. 6 983 || 45-8! 42-7] 3-1) 0-2] 0-1| 18 || 20:—:— || 9-8 || Scud; nimbi; loose cum. and cir.-str. ; raining to SW. ; 8 | 28-998 || 39-0| 38-2] 0-8|| 0-0) 0-0 7:0 || Scud and loose cumuli. [showers around. 10 I 29-003 | 37-0) 36-5) 0-5 || 0-0) 0-0} 20 5-0 || Scud and cirro-stratus. 18 | 29-001 | 32-5 | 32.2! 0-3]| 0-0] 0-0) 11 || —:21:—|| 5-0 || Cirro-cumulo-strati ; cirro-strati; mist in the valleys. 20 | 027 || 34-2} 34-0} 0-2]| 0-0] 0-0} 18 |, —:20:—|| 7-5 Id. ; id. (3) 22 | 033 || 42-8! 41-0] 1-8] 0.0) 0-0) 17 ||20:—:—) 5-0 || Scud; cirro-cumulo-strati; drops of rain. 25 0) 052 || 45-5| 43-7} 1-8]) 0-0) 0-0) 20:—:—|| 10-9 || Loose seud; thick scud and cir.-str.; occasional showers. 2/ 043 || 46-3) 42-3) 4-0}) 0-1) 0-1) 18 || 20 20:—)| 5-0 || Scud and loose cum.; sheets of cir.-str. and wo. cirri. © 4 || 041 || 47-7| 43-4| 4:3) 0-1] 0-1} 18 ||} 21:—:— | 7-5 || Seud and loose cum.; nimbi; cir.-str. ; woolly cirri. G 6 | 043 | 48-6| 43-6] 5-0) 0-0; 0-0 16 || 24:—:—|| 6-0 | Heavy cumuli and scud. as) all 072 | 40-7| 39-1) 1-6) 0-0} 0-0 7-0 || Thick woolly cir-str. rad. from N by W., with the radii curved to- 10 | 096 || 34-8| 34-2) 0-6|) 0-0} 0-0) 20 2-0 | Scud and cirro-strati. {wards the E. ; patches of seud. 18 || 29-185 || 32-6) 32-2) 0-4|| 0-0] 0-0} 18 || 9-8 || Dense mass of cirro-strati; hoar-frost on the ground. 20 222 || 35-0| 34-7} 0-3|) 0-0| 0-0} 18 | —: 0:— | 10-0 || Scud; mass of cirro-stratus. 22 || 254 || 41-9} 40-1] 1-8] 0-0] 0-0} 24 0:—-:—) 9-8 || Masses of loose cumulous scud ; cirro-cumulo-strati. 26 0 | 282 || 44.7) 41-5| 3-2|| 0-0] 0-0) 26 || 29:—:—J]) 5-5 || Loose cumuli; cir.-cum.-str.; cum.-str. on horizon. © 2 298 | 46-7 | 43-7] 3-0]] 0-0] 0-0] 16 || 30:—:— || 8:0 | Seud, loose cumuli, and cirro-stratous scud. (0) 4 | 314 | 46-0| 42-0] 4-0]! 0-1] 0-1] 21 || 24:— | 9.0 || Cirro-cumulo-strati; cumuli and cirro-strati. 6 || 312 | 44-7| 41-8] 2.9] 0.0] 0-0] 18 || —:28:—] 9-0 11s Be hazy. g || 335 | 41-4| 39-4| 2.0 0.0] 0.0 18 |) 2-5 || Cumulo-strati to S. 10 | 354 | 37-9| 36-1| 1-8} 0-0} 0-0) 22 | 1-0 || Cirro-stratus and haze on horizon. 18 | 29-388 | 39-2| 37-2| 2-0|| 0-2| 0-1) 22 | 25:—:—|| 9-9 || Cirro-stratous seud ; cirro-strati. 20 || 445 | 40-7| 38-8| 1-9] 0-1] 0-0] 20 || 24:25:25|| 9-8 Id.; woolly cirri and cirro-cumulo strati. © 22 396 || 44-3| 40-6| 3-7|| 0-1] 0-1] 21 ||27:—:—] 9-9 || Scud; cirro-strati. 27 0 || 388 || 47-3| 42-2] 5-1]| 0-3] 0.2] 24 ||26:—:—|| 9-8 || Scud and loose cumuli; cirro-strati. 2 359 || 47-8| 41-6| 6-2] 0-5] 0-2| 20 Wain 9-0 || Heavy cumuli; nimbi; partial showers to N. [s) 4 365 || 43-0 39-7 | 3-3 || 1-4] O-L| 25 || 26:23: — 9.2 || scudand nimbi; cir-cum~str.; cum-str. on hor,; heavy shower of hail lately. 6 348 | 46-2) 41-2) 5-0|| 0-6| 0-2| 24 | 26:25:— | 3-0 | Loose cum. ; cum.-str. ; nimbi to E. ; sheets of cir.-str.© 8 359 || 41-4! 38-5| 2-9] 0.2| 0-1| 21 || 26: —|| 5-0 |) Seud and sheets of cirro-strati. 10 365 | 38-9| 36-9! 2-0! 0-1] 0-1! 18 | 4-0 | 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. The motions of the three strata of clouds, Sc. (scud), (.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. March 214 10%, Observation made at 10% 10™, March 262 10%. Observation made at 10% 5™, Dainty METEOROLOGICAL OBSERVATIONS, Marcu 27—Aprit 3, 1846. 369 Time. || at 32°. | Dry. | Wet. | Diff. a in. 8 27 18 || 29-374 || 35-8! 35-0| 0-8 20 387 || 37-8) 37-2] 0-6 22 402 || 44-0} 40-7} 3-3 28 0 410 || 43-7} 40-0} 3-7 2 409 || 45-3} 40-4] 4-9 4 411 || 44-2] 39-3] 4-9 6 429 || 40-0} 38-0} 2-0 8 453 || 38-3} 36-6] 1-7 10 467 || 36-1} 35-0} 1-1 8 236 || 44-3] 41-3) 3-0 oo bo (oe) Yo) Oo o ep or wo = ns lo) THERMOMETERS. WIND. Clouds, Maximum gpa ose Gis 1 Sky a Species of Clouds and Meteorological Remarks. force in |Prom Bi csOneed: from 1h, |10™, o lbs. | Ibs. | pt. || pt. pt. pt. |} 0—10. 0-1! 0-0 4:—:—J| 10-0 || Dense mass of cirro-stratous scud. 0.0))0-0)| 17 6:—:—|| 4-0 || Loose scud; cumulo-strati on E. horizon; cir.-str. © 0-2) 0-3) 5 || 4:—:—] 8-0 || Heavy loose cumuli; cumulo-strati and scud. 0-7| 0-3} O || 4:—:—] 9-0 Id. 15} 0-7} 2 || 4:—:—j] 7-0 || Scud; loose cumuli; nimbi. © 1-9] 0-7} 3 |) 3:—:—j] 6-0 Id. ; id. ; cumulo-strati and mottled cirri.© 1-:7| 0-4} O 3:—:— 3-0 ik = id.; nimb. to SE., with great cir. crown. © 0:7} 0-1; O 2:0 |] Cirro-strati; cumuli on horizon. »)) 0-1} 0-0! 30 2-0 || Clouds on horizon ; a slight shower about 94. 1-7/ 0-3) O || 0:—:—| 8-0 |) Cumuli. 0-6 | 0-0 9-0 || Cirro-stratous scud and cirro-strati. 0-0} 0-0} 20 6-0 Cirro-cumulo-strati aud woolly cirri; cirro-strati. (0) 0-0} 0-0} 20 7-5 | Cir.-cum.-str. nearly stationary ; cum. on hor.; thin lin. 0-0} 0-0) 14 ||} 12:—:—|| 7-0 || Seud and cumuli. {cirri and cirrous haze. © 0-0| 0-0; 10 ||} 14:—:—|| 9-5 || Loose cumuli and cirro-cumulo-strati. 0-1) 0-1}) 12 || 14:14:— 5-5 Td. ; woolly cirri. © 0-3| 0-3} 15 ||14:14:—] 7-0 Td. 0:5| 0-1) 14 8-0 || Cirro-cumulo-strati ; homogeneous to S. 0-3] 0-1} 13 10-0 || Cirro-stratous scud. 0-7| 0-0} 20 3-0 || Cirri and cirrous haze ; cirro-strati. 0-0} 0-0} 18 9-0 || Mottled and woolly cirri and cirrous haze. (a) 0-0} 0-0} 20 9-5 || Woolly cirri; cirro-stratus and cirrous haze. (s) 0-0} 0-0} 18 9-5 Id. ; id. (s) 0-0} 0-0} 20 10-0 || Cirro-stratus and haze, becoming denser. 0-2} 0-2) 14 10-0 || Dense mass of cirro-stratus and haze. 0-0} 0-0 10-0 Id. 0:0} 0-0} 14 || ——:18:—|} 10.0 Id., becoming thicker and looser. -3|| 0-0/ 0-0) 4 10-0 || Very thick and dark ; rain®® +3 || 0-9} 0-3} 20 9-8 || Cir.-str. seud ; cir.-str. and woolly cir. ; cloud red to E. 5 || 0-7| 0-6| 19 || —:—:22] 6-0 || Woolly cirri; loose cirro-strati; patches of scud. (0) -0|| 0-7| 0-4) 16 || 22:—:—|| 10-0 || Patches of secud; dense homogeneous cir.-str. and haze. ‘|| 0-7| 0-0} 20 10-0 || Rain®®; dense mass of cirro-stratus and scud. 8 || 0-1] 0-1) 22 | 21:—:—]| 10-0 || Seud; cirro-stratus. 9 || 0-2] 0-1} 21 || 21:—:—] 8.0 Id. ; id. -7|| 0-1} 0-0} 18 || 22:—:—] 10-0 Id. ; id. -7|| 0-1} 0-1} O 9-5 Tides id. } “6 || 0-1] 0-0| 26 8-0 || Scud and cirro-cumulo-strati. 5|| 0-1} 0-0) 20 |) 22:—-:—| 10-0 || Scud; cirro-strati; mist in the valleys. 3 |/ 0-1} 0-1} 21 4-5 || Sheets of cirro-strati; woolly cirri; loose scud to N. 3 || 0-3} 0-1} 18 || 21:—:—|| 7-0 || Scud and loose cumuli; sheets of woolly cirri. (0) +3) 0-1} 0-1) 16 ]/15:—:—] 4.0 Id. ; linear cirri. (s) 5 || O-1| 0-1) 4 | 14:—:14] 7-0 || Large cumuli and masses of scud; thin woolly cirri. © 0-9| 0-1) 10 |} —:14:—j 8-5 || Cir.cum.-str. and woolly cirri; cum. and cum.-str. © 0-3] 0-1) 6 8:—:—]| 10-0 || Scud and loose cumuli; cirro-strati. 0-5) 0-2) 3 10-0 || Fog moved up from eastward about 74 20™. 0-4) 0-1} 4 10-0 || Drizzling rain”? 1-2] 1-0] 1 10-0 || Dense mass of cirro-stratus ; drizzling rain. 1-5} 1-3} 0 || 2:—:—j| 10-0 || Scud; mass of cirro-stratus; drifting rain” 3-8] 3-4) 1 1:—:—] 10-0 Id. ; id. ; drops of rain. 3:5} 3-3] 1 || 0:—:—| 10-0 Id. 3-5| 1-6} 0 || 0:—:—|| 10-0 Id.; drizzling rain commencing. 088 || 43-2) 38-2| 5-0} 3-7] 1-7} © || 1:—:—J], 7-0 |] Send and loose cumuli; woolly cirri. 0} 3-1] 0-8} 1 1:—:—] 3-5 Id. ; id., nearly stationary.© 211 || 36-9! 33-61 3-3|| 1-21 0-1) 30 131:—:—] 2.5 || Send. 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. April 21 35. Several peals of thunder heard to S., from 28 40™ till 81 0™; a shower about 34. MAG. AND MET. ops. 1846. 370 DatLy METEOROLOGICAL OBSERVATIONS, APRIL 3—10, 1846. | 1 THERMOMETERS. | Winp. Clouds | Gott. || Baro- | j | = Se.:C-8.:Ci.|| Sk Mean || METER Maximum Re wear 1 vhs Seen, af Claudsand Mi , Time. || at 32° Dry. | Wet. | Diff, force in |prom ee clouded.| Species of Clouds an eteorological Remarks. 1», | 10™. a. h in. oT atta 2 lbs. | Ibs. | pt. |] pt. pt. pt. |} 0-10. | 3 10 | 29-259 | 35-6 33-2| 2-4 | 0-2| 0-0} 28 2-0 | Scud and loose eumuli. >} 18 || 29-357 || 30-5 29-7| 0-8 / 0-1| 0-0} 20 | 10-0 | Dense mass of cirro-stratus ; cumuli on E. horizon. 20 || 366 || 33-9! 32-0| 1-9|| 0-0| 0-0) 16 | 10-0 Id. ; cirro-strati. e 22 || 351 |} 40-0) 37-0 3-0 || 0-0| 0-0} 12 | —:—:20|| 9-5 || Woolly and interlaced cirri ; cumulo-strati to N. & E.6 4 0 319 |) 41-3 38-0| 3-3]] 0-0] 0-1] 6 9:12:— 9-5 || Seud in patches; masses of seud ; cirri and cir. haze. 2 272 || 41-1) 37-9) 3.2) 0-3] 0-3) 5 | 8:—:—|] 9-9 | Scud; nearly homogeneous cir.-str.; slight shower lately. 4 231 || 39-2| 37-3| 1:9) 0-3) 0-3; 4 | 6:—:—)j 10-0 || Id.; cirro-stratus ; rain! 6 216 | 36-4| 35-4| 1-0] 1-0] 0-7) 5 | 6:—:—]| 10-0 || Id.; dense homogeneous cirro-stratus ; drops of rain. g | 189 || 35-5| 35-0| 0-5|| 0-6) 0-3} 5 10-0 | Densely overcast ; rain’? ; sleet occasionally. 10 178 || 35-4] 34:5] 0-9] 0-1] OL) 4 10-0 || Homogeneous eirrous haze. > 233\| 29-135 || 44-1) 39-4] 4-7|| 1-2) 0-7) 6 |) 6:—:—] 10-0 | Seud and cum.; cir. haze; solar halo throughout the day. 5 18 | 28-962 | 36-7| 35-7) 1-0|| 1-2} 0-1} 4 || 4:—:—) 10-0 || Scud and cirro-stratus. 20 || 29-069 || 39-6| 37-6| 2-0] 0-1} 0-1) 3 |} 5:—:—] 9-8 || Scud; cirro-cumuli. 22 069 || 43-0| 38-3] 4-7|| 1-2} 0-4) 4 5:—-:—)|| 6-0 || Scud and loose cumuli; woolly and linear cirri. (0) 6 0 070 || 42-7] 38:5] 4-2)| 10] 05) 4 5:—:—|| 9-8 || Seud; cumuli and woolly cirri. [1230". 2 078 || 40-0| 39-4] 0-6|| 2-7} 0-8} 2 |) 4:—:— 10-0 Id.; dense cirro-str. ; shower of rain and sleet about 4 088 || 43-0} 39-4] 3-6]| 2-7) 2-6) 4 5:—:—]| 10-0 || Seud and loose cumuli; dense mass of cirro-stratus. 6 100 || 41-5| 37-1) 4-4]) 3-3) 2-2| 2 3: — 9-9 || Seud ; cirro-cumulo-strati; cirro-strati; cirrous mass. 8 114 || 39-7| 36-5] 3-2]| 2-3) 1-0] 2 4-0 || Cirro-cumulo-strati ; cirro-strati and woolly cirri. 10 || 123 || 39-2| 36-2| 3-0] 1-2) 0-6) 2 8-0 | Id. ; id. } 18 | 29-113 || 37-5) 35-9] 1-6]| 1-4] 0-9} 30 3:—:—) 8-0 || Scud; cirro-cumuli and cirro-strati. 20 || . 119-})39-2|. 37-0] 2-2]) 1-0] 0-9| 0] 3:—:—]} 9-5 || Ia; id. 22 || 117 || 42-0} 38-3] 3-7|| 2-3] 1-6] 0 2:—:—| 10-0 | Id.; cirro-strati and cirrous haze. 70 118 || 42-3: 38-8)| 3:5) 2:3) 1-8) 1 | 2:—:— |] 10-0 | Id.; id. 2|| 128 || 41-4] 39-6} 1-8) 2-4) 1-7} O || 2:—:—]| 10-0 Td. ; id. ; rain?” 4 123 || 43-7| 41-3] 2-41} 1-9] 1-4} O || 2:—:—/| 10-0 | Scud 6 131 || 42-4) 40-8] 1-6] 1-3] 0-8) 0 | 2:—:—|) 10-0 || Id.; cirro-cumulo-strati. 8 145 || 41.7| 39-7,| 2-0] 0-9] 0-5) 2] 2:—:—}) 10-0 || Ia; id. 10 136 || 40-2) 39-0} 1-2|| 0-5| 0-3) 2 2) re || aD) Id.; cirrous mass; lunar corona. } 1g || 29-128 || 40-0| 39-5) 0-5 || 0-5| 0-3] O || 6: 6:—|| 10-0 | Dense mass of cirro-stratus and seud ; drizzling rain”? 20 || 151 42-0| 41-4| 0-6) 0-3} 0-2} 3 || 4:—:—|| 10-0 || Loose seud ; drizzling rain?” 22 || 169 |) 42-7| 42-0] 0-7] 0-3} 0-2) 5 | 5:—:—|| 10-0 | 1G Hi id. sg o|| 188 || 44-7| 42-0] 2-7|| 0-7} 0-6). 5 | 4:—:—|} 10-0 | Id. ; id. 2|| 215 | 42-8| 41-8] 1-0] 0-8| 0-6] 4 || 4:—:—|| 10-0 || Scud; id 4 || 237 || 42-1] 40-1] 2-0] 0-9; 0-5} 4) 4:—:—|| 10-0 | Id.; dense cirro-stratus. 6 || 280 || 42-0) 40-2] 1-8]| 0-2} 0-3] 4) 4:—:—] 98 | Id; id. ; cirro-strati ; sky to E. 8 297 || 40-0| 38-7} 1-3}) 0-2'| 0-2} 5 || 4:—:—]| 10-0 Id. ; id. ; id. 10 321 || 39-7| 38-5] 1-2] 0-1] 0-0] 6 |} 10-0 | Id. 18 || 29-370 || 29-7| 29-7| 0-0 || 0-0) 0-0 0-5 | Sheets of cirro-cumuli, 0) 20 393 || 35-5| 35-2) 0-3|) 0-1] 0-0} 20 | 0-3 | Td. fo} 22 || 410 || 41-6] 39-6| 2-0]] 0-1] 0-1] 22 |) 0-8 | Cumuili, cirro-strati, and haze on horizon. (0) 9 0|| 413 | 47-7| 42-7] 5:0]) 0-1| 0-1) 24 || 24:—:—]|. 9-5 || Seud and cumuli; cirro-strati. 2 409 || 49-2| 43:2] 6-0}| 0-1] 0-1 | 23 || 24:—:—]| 7-5 Id. ; id. ; hazy on horizon. e@ 4 || 401 || 50-9) 44-3! 6-6 0-1} 0-1} 24 |) 25:—-:—|| 8-0 || Scud and loose cumuli; cirro-cumulo-strati. 6 || 405 || 47-2| 44.2] 3-0]] 1-4] 0-1|.18 ||24:—:—|| 6-0 || Scud and cumuli ; cumulo-strati; rain falling to E. g || 444 | 43-4] 40-8} 2-6]) 1-0] 0-1] 19 | 24:—:—|| 7-0 || Scud; cumuli and cumulo-strati. } 10 || 439 || 40-2) 38-8) 1-4]) 0-2] 0-1) 18 2-0 || Seud and cirro-strati. ») 18 | 29-466 || 37-0| 36-0] 1-0) 0-4| 0-1; 20 | 26:—:—) 5-0 | Scud and cirro-strati. 20 482 || 41-4| 40-1| 1-3|| 0-2| 0-1| 20 | —:26:—]| 4-0 |) Cirro-strati, cirro-cumuli, and cirri. (0) 22 488 || 45-3] 41-7) 3-6]| 0-2} 0-1] 23 | 2-0 | Loose seud and cumuli, cumulo-strati, and cir,-strati.© 10 0 || 432 | 48-9] 43-0] 5-9|| 0-2| 0-1] 24 | 24:—:—] 8-0 | Send and cumuli; cirro-strati. : 0) 2 || 490 | 50-8} 46-2) 4-6|| 0-2) 0-3) 17 | 25:—:—|| 85 | Id. ; id. 4 || 473 || 50.7| 45-8| 4-9|} 0-5| 0-3] 18 | 25:—:—) 9-5 || Cumuli and cirro-stratous scud, 6 | 459 || 50-8} 45:4] 5-4] 0-6] 0-5] 17 | 24:—:23)|| 3-5 | Loose eumuli; woolly cir. ; piles of cumuli ; cir.-str. © 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. EE a DarLty METEOROLOGICAL OBSERVATIONS, APRIL 10—17, 1846. 371 18 20 22 17 0 2 4 815 794 29-728 730 717 707 700 698 THERMOMETERS. WIND. Dry. 47-6 46-6 Jh, Maximum force in 1O™. 0-0 0 16: 16: Sky clouded. Species of Clouds and Meteorological Remarks. 10-0 10-0 Woolly cirri and cir.-cum.-str.; cir. haze; cir.-str. ; Cirri, cir.-str.,and cir. haze ; lunarhalo. }- _[lun. cor. }- Cirro-strati and dense cirrous haze. Dense homogeneous cirro-stratus and haze. Scud ; mass of cirro-stratus. Id. ; id. Id. ; id. ; rain? Id. ; id. Id. ; id. ; rain® Id. ; bid. rain!—3 Id. ; id. ; rain”? Scud ; cirro-cumulo strati; cirri. Patches of seud ; loose cir.-str. scud ; homogeneous cir.-str. and haze. Cirro-stratous scud ; homogeneous cir.-str. and haze. Id. ; id. Patches of seud ; id. Thin scud moying rapidly; cum.; woolly & mottled cir. © Cumuli; sheets of cirro-strati. (=) Scud ; cumuli and cirro-stratus ; rain”? Scud and cirro-cumulo-strati ; cirro-stratus. Scud ; dark; rain'; smart showers occasionally. Light cirri over thesky. [gradually thicker since 18". Dappled woolly cir.-str. and cir. haze, which has become Cirro-stratous seud ; dense mass of cirro-stratus. Scud; mass of cirro-stratus. Cirro-cumulo-strati ; cumuli and cirro-strati. (s) Seud ; id. Cirro-stratous scud ; dense mass of cirro-stratus. Cirro-stratous scud and cirro-strati. Seud ; dark. Loose misty scud; light drizzle. Scotch mist ; objects invisible at 500 yards. Id. ; id. at 1 mile ; light drizzle. Loose scud and Scotch mist. Id. Scotch mist ; objects invisible at 1 mile ; rain”? Id. Id. ; light drizzle. Very dark. Two currents of scud. Scud. Id. Cirro-stratous scud. Id. Scud ; cirro-strati, cumuli, and cirrous haze. (0) Scud and cirro-strati; cumuli and cirrous haze. Patches of scud to N.; faint auroral light to N. Scud; cirro-stratus. Id. ; id. ; drops of rain; gloomy-looking. Id. ; id. ; light drizzle. Homogeneous ; rain }° Cirro-stratous scud ; mass of cirro-stratus; rain! Thick scud; rain”; misty. The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, HE. = 8, 8. = 16, W.=24. The motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), ave indicated in a similar manner. April 12. At 3» 30™, two or three faint peals of thunder heard; from 4 40™ till 5" 30™, much thunder was heard, chiefly from black clouds to SE. and N., distance generally more than 3 miles; shower of rain about 4% 40™, and of hail about 6». April 144 5, The wind blowing from NE by E. (6.) THERMOMETERS. WIND. . Gott. || Baro- co BA cee Sky ae rs ee ial aay A moving "laremaea Species of Clouds and Meteorological Remarks. 14, 10m, a a.) te in, s o es | Ibs. | lbs. pt pt. pt. pt. 0—10. 17 6 || 29-714 || 46-2} 45.4] 0-8 || 0-0] 0-0] O || 0:—:—J] 10-0 || Thick scud; rain”; misty. 8 730 || 45-6! 45-1} 0-5 || 0-0] 0-0] 31 10-0 || Scotch mist; object invisible at 1 mile. 10 740 || 45-3} 44-8) 0-5 || 0-0) 0-0} 30 10-0 Id. ; rain! 18 || 29-788 || 43-0| 42-5] 0-5|| 0-0] 0-0] 4 || 6:—:—]] 10-0 |] Misty scud; rain®? 20 817 || 42-7] 41-9} 0-8|| 0-1} O01] 3 4:—:—|| 10-0 || Scud; cirro-stratus. 22 833 || 44-7 | 42-2} 2-5]! 0-1) 0-0 1 4:—:—| 10-0 Td. ; id. 18 0 849 || 46-7} 43-2} 3-5]! 0-1} 0-1 2 2:—:—) 10:0 1GGP id 2 850 || 47-8} 44.4) 3-4 0-1; 0-2) 2 1:—:—)] 10-0 Id. ; id 4 860 || 48-3| 44-8| 3-5 | 0-3] 0-1 4 2:—:—|| 10-0 Id. ; id. 6 874 || 46-0] 43-4] 2-6] 0-2] 0-0} 3 2:—:—|| 10-0 Id. ; id. 8 889 || 44-0] 42.3] 1-7]| 0-2] 0-1) 2] 3:—:—|| 100 || Id; id. 10 918 || 43-5| 42.2] 1-3] 0-2} 0-1] 2 10-0 || Id.; dark. 233|| 30-022 || 45-3} 41-6| 3-7) 0-8| 0-2} 3 || 7:—:—|| 10-0 | Scud and loose cumuli; cirro-stratus. 19 18 || 30-038 || 39-0) 37-8] 1-2) 0-8| 0-0] 8 3 9-8 || Seud. 20 044 || 43-5| 42-3} 1-2) 0-0} 0-0 1:—: 2]|| 4-0 || Scud and cumuli; patches of woolly cirri. (0) 22 038 || 44:8 | 42-2) 2-6)| 0-4) 0-1 8 7: —:— 4:5 Id. (0) 20 0 || 30-027 || 47-0! 42-0) 5-0} 0-2) 0-1 8 8:—:— 7-0 Id. (3) 2 || 29.996 || 49-3} 44-3] 5-0]! 0-6] 0-2] 6 || 10:—:— 7-5 Id. (0) 4 974 || 48-5} 43-0) 5-5|) 1-1] 0-6) 6 | 10:—:— 2-5 || Cumuli. (0) 6 958 || 47-2) 42-2) 5-0|| 0-7| 0-3] 8 1-0 Jd. on horizon. (0) 8 956 || 42-5} 40-3] 2-2|| 0-4| 0-0] 4 1-0 || Sheets of cirro-strati. 10 947 || 38-5| 37-8; 0-7|| 0-1| 0-1} 2 0-5 || Cirro-strati on W. and NW. horizon. 18 || 29-882 || 33-6] 33-4] 0-2] 0-0] 0-0 10-0 || Fog, objects invisible at 200 yards. 20 880 || 37-7] 37-0! 0-7 || 0-0] 0-0 10:0 || Id., id. half-a-mile. 22 865 || 41-2} 39-7) 1-5 || 0-0) 0-0| 12 6:—:—|| 3-0 || Thin scud; woolly cirri, cumuli, and eumulo-strati. © 21 0 841 || 47-0] 43.6] 3-4] 0-1] 0-1] 4 || 8:16:—]] 8-5 Id. ; loose cumuli, cirro-strati, and cirri. (0) 2 828 || 45-6) 43.2] 2-4]! 0-5| 0-2] 17 9-0 || Scud, cumuli, nimbi, cirro-strati, and woolly cirri. 4 800 || 46-5| 42-7) 3-8]| 0-4] 0-1} 2 ||} 10:16:—J| 7-0 || Scud and cumuli; cirro-strati; showers occasionally. 6 6 807 || 43-3| 42-2) 1-1|] 0-6} 0-1] 22 || 10:—:—|| 9-5 |] scua; thick woolty cirri, cir-str., and cirri; heavy shower of hail and rain at 5h, 8 837 || 41-3| 39-2} 2-1] 0-1] 0-1 5 ||—:14:—)|| 9-5 || Cir.-cum.-str. ; cirro-stratus, haze, and cum. ; thick seud 10 822 || 39-0) 37-9} 1-1|) 0-1} 0-1) 8 2.5 || Scud and cirro-strati on horizon. [lying on Cheviot. 18 || 29-799 || 35-3] 35-0] 0-3] 0-0} 0-0 6: 8:—)| 9-7 || Scud; cirro-strati and woolly cirri. 20 805 || 41-6| 40-6| 1-0] 0-0) 0-0) 4 || 5:—:—j| 10-0 || Id.; drops of rain. 22 807 || 44:3| 42-0] 2-3] 0-4] 0-2} 4 || 6:—:—| 10-0 | Ida.; id. 22 0 804 || 44-7| 43-7| 1-0] 0-8| 0-8| 4 || 7:—:—|| 9-8 Id.; shower? ; heavy shower of hail at 234. 2 812 || 48-1| 44-0] 4-1] 1-9} 0-8} 5] 7:—:— || 9-8 Id.; cirro-strati; occasional showers. 4 827 || 48-3| 44-3] 4-0] 1-9] 1-0] 5 || 7:—:—]| 6-5 || Scud and cumuli. (3) 6 834 || 47-2) 42-8| 4.4] 1-3] 1-2) 6 | 7:—:—]| 3-0 ||{Loose scud; cir.-cum.-str., cir.-str., and woolly cirri. © 8 856 || 43-3) 40-3] 3-0]] 1-3] 0-2} 3 6 :—:s — 3-0 || Cirro-cumulo-strati ; cirro-strati. 10 866 || 40-7] 39-2] 1-5|] 0-3) 0-1} 2 2-5 Id. ; id. 18 || 29-834 || 41-3] 39-1] 2-2] 0-5] 0-1} 5 || 2:—-:—|| 9-5 |] Scud; cirro-strati. 20 824 || 43-0] 40-5] 2-5] 1-7) 2-1) 2] 2: 5:—|]| 4-0 Id.; cirro-cumulo-strati. © 22 826 || 45-2] 41-7| 3-5]| 2.2) 1-7] 2 || 4:—:—|| 9-0 dss id. ; cumulo-strati. 23 0 815 || 44-2| 42-0} 2-2] 2-7] 1-7] 2 || 3:—:—|| 10-0 Id.; dense mass of cirro-stratus. 2 786 || 48-2) 44-7] 3-5] 2-2] 1-6] 3 4:—:—|| 10-0 Id.; cirro-stratus ; woolly cirri. (s) 4 765 || 48-7| 44-7| 4-0] 2-2} 23] 2] 3: 6:— 9-9 Id.; cirro-cumulo-strati; cirro-strati. 6 741 || 43-6| 42-7| 0-9] 2-6] 0-4) 3 | 2: 2:— 9-5 || Thin seud; large cir.-cum-str.; cir.-str.; heavy shower of rain and 8 735 || 43-0| 42-0| 1-0] 1-6] 0-8| 1 || 2:—:—| 10-0 || Scud; cirro-stratus ; rain*~* EOE Le, 10 728 || 42-3) 41-7) 0-6 | 0:9! 0-6} 2 10-0 Id. 18 || 29-745 || 43-6] 43-0] 0.6] 1-1] 0-1) 2 |! 10-0 || Homogeneous scud and cirro-stratus; a tendency to 20 | 754 || 44.0} 42.6] 1-4|] 0.7| 0-8] 4 || 5:—:—|] 10-0 || Scud; rain” (drizzle. 22 734 || 43-0] 41-7/ 1-3] 1-3) 0-9 1 5 =: —1|| 100 Tas’ ~ vids 24 0 693 || 45-2] 44-1] 1-1]] 1-4| 1-1] 4) 5:—:—]} 10-0 || Id.; rain? < 2 688 || 45-3] 43-8| 1-5 |] 1-2) 0-7) 6 5:—:—| 10-0 Id.; drifting rain”? The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, B. = 8, 8S. = 16, W. = 24. The motions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Daity METEOROLOGICAL OBSERVATIONS, APRIL 24—May 1, 1846. 373 THERMOMETERS. WIND. Gott. BARo- Mean || METER Maximum Time. || at 32°. || Dry. | Wet. | Diff. force in |fyom 1h, , 10™, ad oh in. = 2 tC) Ibs, | Ibs. | pt. 24 4 || 29-674 | 46-0] 45-3] 0-7|| 1-8] 0-7] 6 6 688 || 45-4} 43-8} 1-6] 1-2] 0-5] 6 8 728 || 45-3) 44-3] 1-0]] 0-6| 0-1 6 10 772 || 44-0| 43-0| 1-0]) 0-2} 0-1 5 18 || 29-776 || 43-0| 42-8] 0-2] 0-0} 0-0 20 791 || 45-0| 44-2/ 0-8|| 0-0} 0-0) 4 22 801 || 48-7| 46-3} 2-4]) 0-0} 0-0] 31 25 0 796 || 51-0} 47-0} 4-0} 0-1] 0-1 5 2 792 || 51-0} 47-6) 3-4] 0-5) 0-3) 3 4 779 || 50-1| 46-0} 4-1] 0-6] 0-1 2 6 767 || 49-4| 45-8! 3-6|| 0-2} 0-2) 2 8 773 || 45-8} 43-3] 2:5]| 0-7| 0-2) 2 10 776 || 44-2} 43-3] 0-9} 0-7| 0-7} 1 232) 29-692 | 40-5] 37-4| 3-1] 3-7) 2-7] 1 26 18 || 29-676 || 35-6| 33-3} 2-3 || 4-5] 0-1] 28 20 685 || 39-6| 35-7) 3-9|/ 1-8) 0-9] 29 22 695 || 42-5) 36-8) 5-7|| 1-5| 0-7} 29 27 0 682 || 45-0| 38-4] 6-6|| 1-2] 0-4] 28 2 680 || 45-3} 39-3) 6-0|| 0-7| 0-3] 27 4 656 || 46-6} 40-2! 6-4|| 0.3} 0-1] 24 6 643 || 45-6} 39-8] 5-8 || 0-0] 0-0} 22 8 633 || 42-7} 39-4| 3-3]| 0-1) 0-0} 23 10 634 || 40-0| 38-4} 1-6|| 0-0} 0-0} 20 18 || 29-653 || 36-0| 35-1) 0-9|| 0-0} 0-0 20 672 || 40-8] 38-5} 2-3) 0-0] 0-0} O 22 693 || 46-2) 40-2} 6-0)| 0-1] 0-0} O 28 0 711 || 45-4) 39-3} 6-1 || 0-2] 0-1} 30 2 736 || 46-3} 39-0} 7-3] 1-1] 0.3) 30 4 750 | 46-5| 39-4| 7-1] 0-8) 0-9} 0 6 782 || 46-3| 40-3} 6-0} 0-8} 0-2} 0 8 821 || 42-2] 37-7} 4-5]/ 0-3} 0-1) 4 10 848 | 33-2) 32-2| 1-0|} 0-0} 0-0} 20 18 || 29-885 || 33-4| 32-7| 0-7|| 0-0) 0-0| 18 20 899 || 42-7} 38-7] 4-0|| 0-1} 0-1] 22 22 912 || 48-0] 42-2) 5-8] 0-5] 0-2) 23 29 0 903 || 51-2} 46-2] 5-0]| 1-2| 0-2] 28 2 873 || 52-7| 46-6} 6-1] 1-3) 1-6] 23 4 869 || 52-0| 46-6] 5-4]| 2-3] 1-2) 24 6 858 || 52-5| 45-8] 6-7|| 2-6] 1-2) 25 8 919 || 44-7) 42-7] 2.0]| 1-8] 1-2) 0 10 || 29-977 || 40-2} 39-5} 0-7]| 0-8} 0-1 2 18 || 30-041 || 38-5} 37-1] 1-41) 0-3} 0.0] 2 20 058 || 42-4) 40-0} 2-4] 0-0] 0.0| 17 22 058 || 46-0} 41-8} 4-2] 0-0] 0.0] 17 30 0 053 || 50-3| 45-0} 5-3]| 0-0] 0-0} 18 2 035 || 49-2| 44-5] 4-7]| 0-1] 0.0} 18 4 || 30-007 || 50-4| 47-0| 3-4|| 0-1] 0-1] 20 6 || 29-994 || 48-3) 46-0} 2-3] 0-0} 0.0 8 || 30-002 | 47-0} 44-3| 2-7}! 0-2] 0-0| 21 10 020 || 45-4) 43-4/] 2-0|| 0-0} 0.0] 19 18 || 30-010 | 44-4] 43-4/ 1-0] 0-0] 0-0 20 020 || 48-9} 46-0) 2-9|) 0-0] 0-0| 17 22 | 30-007 || 53-2} 49-0| 4-2|| 0-1] 0-0] 18 1 0 || 29-982 || 56-0! 51-2) 4-8] 0-7| 0-5| 19 ORAAzZ NNWAaKUAw Ss Clouds, Se.: C.-s: Ci, moving from pt. 728i: 228: £20: 9: pt. : 8 Sky clouded. Species of Clouds and Meteorological Remarks. Seud ; drizzling rain”® Id.; cumulous seud; woolly cirri; drizzling rain? Thick scud ; cirro-strati and cirro-cumulo-strati. Seud and cirro-stratus. Homogeneous mass of clouds ; misty. Id.; id. Seud ; cirro-cumulo-strati; cumulo-strati. [lately. Loose scud ; loose cum. ; cir.-cum.-str.; drops of rain Scud and loose cumuli ; id. Seud ; loose cumuli. (0) Scud and cirro-strati. Td. Tass dark ; rain” f Cumuli and cirro-strati; occasional showers of rain, hail, and (snow throughout the day. Cirro-cumulo-strati ; cumuli on horizon. ide: id. 0) Scud and cirro-cumulo-strati ; cirro-strati. Id. ; id. Cirro-stratous seud. Thick seud and cirro-strati. Id. ; cirro-cumulo-strati. Wavy cir.-str. and cir.-cum, ; clouds tinged red to W. Scud and cirro-strati. Thick cir.-str. and scud; a slight shower of rain and Cirro-stratous scud. [hail lately. Ids; cumuli on N. and E. horizon. Scud and cirro-cumulo-strati; cum.; rain falling to S. Id. ; id.; cumulo-strati. Scud and cum. ; occasionally afew drops of rain and hail. Cumulo-strati and cirro-strati round horizon. Scud and cirro-cumulo-strati. Cirro-strati on N. horizon. Sheets of woolly cirri and cirro-cumulo-strati. Cirro-cumulo-strati. Scud and loose cumuli; cirro-strati. Cirro-stratous scud. Seud and loose cumuli ; cirro-strati and woolly cirri. Cumuli. Loose cumuli; cumulo-strati and cirro-strati. © Dense mass of thick scud. Scud; rain! since last observation. QO © vOO Cirro-stratous scud and cirro-cumulo-strati. Dense cirro-stratus ; patches of scud to E. Id. Id. Id. Scud and dense cirro-stratus ; light rain lately. Id. ; slight drizzle. Cirro-stratous scud ; smoky scud to N.; cirro-strati. Id. Thick scud and cirro-stratus. Td. Id. Scud and cirro-stratus ; atmospheric haze. The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, HE. = 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. April 297 8h, A dense mass of thick seud has risen from N. and NE., and is now nearly over the whole sky; there are different shades of colour; 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 in various directions, but principally from N. MAG, AND MET. oBs., 1846. 5B 374 DaArLy METEOROLOGICAL OBSERVATIONS, May 1—7, 1846. THERMOMETERS. WIND. Clouds, Baro- 3 cee lech METER Maximum Se. : C.-s, :Ci., % ‘ v f A 5 moving at 32°. || Dry. | Wet. : Past i | From from Species of Clouds and Meteorological Remarks. = Ss a LENO COW AMY HAkHANSSDOLHOHWO AAW ® Scud and cirro-stratus ; atmospheric haze. Seud ; dense cir.-str. and cir. haze ; atmospheric haze. Thin seud ; id. ; id. fans id. ; id. Id. ; id. ; id. Seud ; cirro-strati. Id. ; id. ; cirro-cumuli. Td. ; id. Scud and loose cumuli; cirro-strati. Q [of cir.-str.© Id. ; woolly cirri; cum.-str. ; sheets Masses of seud ; cirro-cumulo-strati and cirro-strati. Dense mass of cirro-stratus ; cirro-cumulo-str. above. Cir.-str. over the whole sky ; a few patches of scud. As before. Seud and cumuli. oe ee) wer owrW@o 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™ ago. Id. ; des id. Thick seud and cirro-stratus. Seud ; mass of cirro-stratus. IGE id. Seud and loose cumuli; woolly cirri. (>) Thick seud. Cumuli; woolly cirri. (2) Scud and cumuli; cumulo-strati and haze on horizon. Rain2—4 ; 5 45™, two peals of thunder, the interval for one of them Scud ; dense cir.-str. ; oceasional shower? _—‘' being 24°. Rain! Homogeneous ; rain’ Cirro-stratous seud. Thick scud and loose cumuli. Thick seud and cirro-strati. Id. Cirro-cumulo-strati ; cumuli ; woolly cirri. Scud, loose cumuli, and cirro-cumulo-strati. Id.; cirro-strati ; id. | Seud and cirro-strati ; drops of rain. | 29-431 | SSOOS FEW HE EHR OF OOF PN EEE FT OrE 0- 0: 0- 0 0. 0. 0 0. 0- 0. 0: 0 0. 0: 0- 1 2 3 ‘1 2 1 0 1 1 1 2 2 1 0 1 1 3 8 Scud and loose enmuli ; cumulo-strati on horizon. Seud and cumuli; woolly cirri. Id. Seud, loose cumuli, and cirro-strati. Id. Send, loose cum., cir.-cum.-str., woolly cir., and cir. haze, : : Masses of cir-str. ; woolly cir. and cir, haze over the sky. 45-6} 2. . ‘7| : Thick scud and cirro-stratus. 43-9 | 3- “¢ : : : . Seud ; cirro-strati. (0) 45:3 | 5- .9| 0- P epee Sh 4 Id.; id. : 46-9] 6: ‘ 6 poe -0. | Cumuli. B bal 7 fo) 8 8 Cirro-strati and linear cirri on horizon. (o) 10} 8 10} > eRe 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. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner, i May 74. Cuckoo heard. ren Gott. Baro- Mean METER Time. || at 32°. dey ch. in, 8 0 || 29-548 2 582 4 605 6 647 8 673 10 698 18 || 29-730 20 716 22 680 9 0 640 2 612 4 | 557 6 524 8 488 10 452 234) 29-366 | 10 18 || 29-650 20 674 22 684 11 0] 698 2 706 4 698 6 706 8 726 10 741 18 || 29-718 20 711 22 717 12 0 708 2 695 4 679 6 682 8 696 10 722 18 || 29-758 20 766 22 774 13 0 777 2 793 t 805 6 831 8 859 10 899 18 || 29-953 20 979 22 984 14 0 978 2 968 4 954 6 952 8 955 10 || 939 18 | 29-885 20 | 876 Daity METEOROLOGICAL OBSERVATIONS, May 8—14, 1846. 375 THERMOMETERS, RASe: _| Clouds, s i | Se. : C.-8.: Ci, k ea one ae moving ana Species of Clouds and Meteorological Remarks. 14, | 107. ° < Tbs. | Ibs. | pt. pt. pt. pt 0—10. 56-0| 48-4] 7-6) 2-3) 1-1| 26 | 25:—:—|| 5-0 || Cumuli. (=) 57-9| 49-1] 8-8|| 1-6) 0-9] 25 | 24:—:—]| 5.0 Id. 0} 59-2| 50-2] 9-0 || 2-2) 1-2) 23 || 27:—-:—|| 6-0 Id. () 57-6| 50-0] 7-6) 1-1] 0-5) 22 | 26:—:—|| 5-0 Id.; linear cirri. 52-1] 47-0) 5-1] 0-4] 0-3) 26 9-0 || Masses of cirro-strati; cirrous haze; solar halo. 47-0| 43-6] 3-4) 0-3) 0-0 22 2-0 || Sheets of cirri and cir. haze ; traces of a lunar halo, )) 40-4| 39-8] 0-6} 0-2} 0-0} 20 0-2 || Cirri and haze round horizon. (0) 47-7| 46-3| 1-4} 0-2] 0-1) 18 | 0-5 || Scud, cirro-strati, and cirri round horizon. (0) 57-2) 51-1) 6-1) 0-4) 0-3) 15 || 15:—:—]) 7-0 | Cumuli; a few tufts of cirri. (0) 59-4| 51-4} 8-0]) 1-3} 1-8) 16 || 15:—:20 3-0 Id.; woolly cirri. (0) 60-6 | 51-6] 9-0) 1-8/ 1-7) 18 || 18:—:—|| 7-0 || Masses of cum.; woolly cirri and cir. haze; solar halo. © 61-3| 52-3| 9-0} 2-1] 1-2) 18 |17:—:22] 8-0 | Id.; woolly and mottled cirri; very hazy on hor. 57-9) 51-6| 6-3) 2-0} 0-3| 20 | 18:—:—)|| 10-0 || Thick seud and cirro-stratus. 55-9| 51-6] 4-3] 0-4] 0-1] 18 || 17:—:—1|| 10-0 Id. 53-0| 49-8| 3-2] 0-5] 0-8) 19 | 18:—:—}} 9-5 || Seud; cir.-str. and cir. haze; portion ofa lunar halo. }- 55-3| 49-0) 6-3) 2-8) 0-9/ 19 || 21:—:—J}) 3-0 || Loose cumuli; showers of rain and hail about 5». 47-:0| 44-3} 2-7] 3-9) 0-5 | 20 1:0 || Seud and cirro-strati to S.; cirri and haze to N. (6) 50-2) 46-7} 3-5) 1:0) 0-7) 19 || 21:—-:—|| 9-0 || Seud and loose cumuli; cirri and cirrous haze. =) 54-5| 49-6] 4-9} 2-1) 2-0) 17 || 21:—:—|| 6-0 Id. ; id. 58-5| 50-8] 7-7|| 3-0) 2.3] 18 |} 21:—:—]| 8-0 id. id. 0} 58-2} 49-9] 8-3] 3-6} 3-0] 19 || 21:—:—] 2.0 Id, 0} 57-8| 48-8] 9-0) 4:0} 2.9] 20 || 21:—:—] 6-0 Id. fo) 57-0} 49-5] 7-5|| 3-6} 1-6] 18 || 20:—:—]| 2-0 Id. ; cirri, (0) 51-4) 46-5] 4:9] 2:5] 1-0] 18 || —:—:22]| 7-0 || Woolly cirri. 46-6] 44-0} 2-6} 1-2) 0-4] 18 4:0 Id. ; cirro-strati. ») 43-5| 41-4] 2-1] 0-7] 0-1} 18 || —:20:20]| 6-0 || Thick woolly cirri and cirro-strati. e 53-9| 48-7] 5-2] 0-6] 0-9] 16 8:0 || Thick woolly cirri; part of a halo. (=) 58-0| 50-2) 7-8 || 1-6| 0-8| 18 || —: 22:22}! 9-0 || Woolly cirri and cirro-strati; patches of scud. (>) 60-8 | 52-0} 8-8 || 2-1} 1-7] 18 9-8 || Masses of cumuli; woolly cirri and cirro-strati. 63-6| 53-7] 9-9 || 2-4) 2.0] 16 115:—:—]} 9-8 Id. ; cirrous haze and cirro-stratus. © 62-2| 52-5} 9-7 |) 1-7} 0-5) 17 || 16:—:—|} 10-0 || Cum.; cir.-str. and cir. haze ; hazy and electric-looking. 58-4| 52-2) 6-2] 1-4] 0-9] 15 10-0 || Seud and electric-looking cum. ; cirro-stratus and haze. 53-3] 50-0] 3-3] 2-2) 0-3) 14 || 16:—:—|| 10-0 || Thick dark seud; cir.-str. and cir. haze; slight showers 51-9| 48-6] 3-3] 0-6) 0-0 10-0 || Thick seud and cirro-stratus. (occasionally. 44-6| 43-7] 0-9] 0-7) 0-0} 4 8-5 || Thick woolly cirri and cirrous haze; patches of scud.Q 49-8| 47-8] 2-0) 0-1) 0-1) 4 ||—:—:10]] 9-5 || Thick woolly cirri; cumulo-strati to NW. (>) 56-9) 51-6] 5-3|| 0-3) 0-7) 7 || 9:—:— 7-0 || Seud and loose cumuli; cirri and cirrous haze. 55-5| 50-6] 4-9) 1-8) 1-3) 6 ||10:—:—J]] 9-0 |) Masses of cum.; woolly cirri and cir. haze ; solar haloQ 57-6] 52-4] 5-2] 1-4) 0-8] 6 || 9:—:12]] 9-0 Id. ; id. iS) 56-3) 51-6] 4-7) 1-6) 1-2} 6 || 9:—:12]) 7-5 || Thin seud and cumuli; woolly cirri. 54-3| 50-4] 3-9! 1:5) 0-8) 8 || 10:—:— J] 10-0 || Scud and cumuli; cirro-stratus and cirrous haze. 49-3] 46-2] 3-1] 0-6) 0-5) 4 9-0 || Woolly cirri, cirro-strati, and cirrous haze. 46-4] 45-0} 1-4) 0:5/ 0.3] 3 6:—:—|]| 10-0 || Scud; cirro-stratus and cirrous haze. —~ 46-3| 44-8] 1-5 0-6/ 0:7} 4 || 4:—-:—|! 10-0 || Cirro-stratous seud. 47-5| 45-4] 2-1] 0-8} 0-4) 2 || 5:—:—|] 9-8 || Scud and loose cumuli. 52-6| 48-8) 3-8] 0-8) 0.9| 4 Ce 7-0 Id. ; woolly cirri. iS 54:0] 49-7} 4:3] 0-8; 0.4] 2 || 7:—:—l]] 4-0 nc id. 0} 55-6| 48-5] 7-1] 0-8) 0.5] 6 0-8 || Masses of scud andcum.; thin cir. and cir. haze; halo.© 55-2] 48-4] 6-8] 0-8) 0-8) 5 65. 0-8 dhs thin woolly cirri. (9) 54-4] 48-0] 6-4] 0:9) 0.4) 3 0-5 || A few small patches of scud and cum. ; woolly cirri. © 50-8 | 46:5] 4-3] 0-7) @-1| 6 0-3 || Cirrous haze and cirri on horizon. (0) 44-5| 43-0] 1-5) 0-2} 0-.0| O 0-3 || Cirri on horizon. 41-2| 41-0] 0-2) 0-1) 0-0} 18 10-0 || Homogeneous; misty. 43-8| 42-9} 0-9 0-1; 0-1! 24 || 22:—:— 9-8 || Cirro-stratous scud; misty. e@ 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), (.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. May 124 20%. Very hazy round horizon ; small portion of a halo. 376 Darty METEOROLOGICAL OBSERVATIONS, May 14—21, 1846. THERMOMETERS. Winn. Claude | Pee aaa | Maximum ear Gi. | Sa) Species of Clouds and Meteorological R k Time. || at 82°. | Dry. | Wet. |Dift.|| force in [From] “yy nS |clouded._| 3 iti ee: | | 1h, }10™, | | | | | ad h. | in. a = ° |} Ibs. lbs. pt. pt. pt. pt. | 0—10. 14 22 || 29-831 || 50-0] 46-2] 3-8) 0-1] 0-1) 13 | 12:—:—| 0-4 | Masses of cumuli to S. and SE. (0) 15 0 || 784 || 56-7} 48-9) 7-8 1:3} 0-8| 12 || 14:—:— J 0-8 | Small detached masses of cumuli. (0) 2| 745 | 59-0| 51-1| 7-9] 0-9| 0-3] 16 | 15:—:—] 5-0 | Loose cumuli; hazy. ro) 4 702 || 62-6] 52-6/10-0]] 1-1| 0-2] 16 | 21:—:—| 8-5 | Id. ; id. 6 || 674 || 56-9) 50-2| 6-7|/ 1-1] 0-8) 14 || 20:—:—] 8-0 | Id. ; id. 8 667 | 50-7| 46-3} 4-4]| 0-8| 0-4] 15 | 2-5 | Cirri and cirrous haze on horizon. 10 | 671 | 46-2) 41-9 4-3 || 0-4] 0-4| 17 4-0 Cirri, cirro-strati, and cirrous haze. 18 | 99-590 || 39-4| 38-5] 0-9)| 0-4) 0-0 2.5 | Cir.-cum.-str., cir.-str., woolly cirri, and cirrous haze. © 20 575 || 47-5] 43-7] 3-8]| 0-1] 0-0} 6 2-5 | Woolly cirri and cirro-strati; hazy. {0} 22 521 || 54-0} 47-4] 6-6]| 0-2} 0-2] 14 | 10:—:20 1:0 | Masses of loose cumuli; sheets of woolly cirri. (0) 16 0 490 || 55-0} 47-0} 8-0}| 0-8} 0-8) 15 0-5 | Small patches of eumuli. © 2 459 || 55-6| 47-9| 7-7]|| 1-5] 1-5] 12 |} 12:—:—|} 6-0 | Cumuli. © 4 422 || 54-6| 48-2| 6-4]] 1-3] 1-1] 12 |} 13:—:—|| 9-0 || Seud; cumuli and cirro-strati. 6 373 || 52-2| 46-6] 5-6]/ 1-3] 1-0] 8 | 11:—:— 6-5 | Cumuli; streaks of cirri. fo) 8 358 || 48-6| 43-2] 5-4|| 1-5] 0-9] 8 ||/11:—:14]| 3-0 | Loose eumuli, woolly cirri, cirrous haze, and sheets of 10 || 29-326 || 46-0) 44-5] 1-5|| 0-5) 0-3) 6 | 9:— 10-0 | Scud; rain’? commenced at 9 50". [cir.-str. © 233) 28-909 || 47-5| 47-2] 0-3]| 1-1] 0-5] 3 || 6:—:—} 10-0 | Misty seud; drizzling rain. 17 3 826 || -- as reel ikZoale Beceellt LAT Rell Gesose 8 877 || 51-4| 49-4] 2-0|] 0-8] 0-3} 18 || —:20:—]| 10-0 |, Thick cirro-stratous scud. 18 || 28-807 | 47-8| 47-2] 0-6|| 0-3] 0-0) 14 |} —:12:—]| 7-0 | Cirro-cumulo-strati; cirro-strati; patches of seud. © 20 824 || 49-6] 47-0] 2-6]] 0-3] 0-1] 16 |15:—:—|} 8-5 | Scud; cirro-strati. [drops of rain, 22 816 || 50-5| 46-8| 3-7|| 2-0] 2-0] 15 || 14:14:—]} 8-5 || Masses of scud and loose cumuli; cirro-strati; a few 18 0 802 | 54-6] 49.6] 5-0|| 1-8] 1-7| 14 | 14:—:— 9-8 | Seud, loose cumuli, and cirro-strati. 2 803 || 50-2| 48-8} 1-4]| 1-1] 0-2] 10 || 13:—:—]| 10-0 | Seud and cirro-strati; showers since 1h, 4 793 || 50-3| 47-3| 3-0]| 0-8] 0-7} 10 || 12:—:—| 10-0 Id. 6 772 || 50-8| 47-5| 3-3]| 0-7| 0-4] 6 ||12:—:—|| 10-0 | Seud and cirro-stratus. 8 780 || 48:0| 47-5| 0-5|| 0-6| 0-2) 4 || 8:—:—|| 10-0 | Scud; rain” 10 784 || 48-4] 47-8] 0-6]| 0-2) 0-1} 2 10-0 | Scud and cirro-strati; drops of rain. 18 || 28-919 || 47-8| 46-3] 1-5|| 0-2] 0-0) 21 10-0 | Cirro-stratous seud and cirro-strati. 20 | 28-976 | 48-8| 46-2) 2-6 0:8| 0-4} 24 || 24:—:—|| 10-0 | Send; cirro-strati. 92 | 29.028 | 53-7| 48-0| 5-7|| 1-8| 1-0] 24 ||24:24:—|| 8-0 | Scud and loose cum. ; sheets of cir.-str. and wool. eirri.6 19 0 067 || 55-9| 48-3] 7-6|| 1-9] 1-6) 21 || 24:26:26 8-0 | Cumuli; cirri and cirro-strati, moving very slowly. © 2 096 || 59-0| 51-2] 7-8|| 2-2| 2-4] 18 ||24:—:—}| 9-5 | Seud, cumuli, and cirro-strati. 4 119 | 57-0| 49-7| 7-3]| 3-1] 1-9] 19 |21:—:—]} 6-0 || Id, id. and woolly cirri. (0) 6 129 | 56-1| 47-1| 9-0|| 1-9] 1-6] 18 || 20:—:—}] 2-0 | Cumuli; cirro-strati to S. (0) 8 129 | 51-1| 46-9| 4-2|| 1-9] 0-1] 18 || —:—:20] 9-0 | Cirri, cirrous haze, and cirro-strati. 10 104 || 49-8) 46-0] 3-8 || 0-5) 1-0} 15 10-0 | Cirro-strati and cirrous haze. 18 || 29-006 || 50-2) 47-8} 2-4]| 2-5] 0-2) 16 |} —:17:— 3-0 | Cirro-stratous seud ; cirro-strati; hazy on horizon. © 20 003 || 53-7| 48-4| 5-3|| 2-3| 3-0] 16 ||17:17:—|]| 4-5 | Seud and cirro-strati; hazy on horizon. (s) 22 037 || 58-5| 51-8] 6-7|| 2-8| 2-2] 16 ||18:—:—|| 7-5 | Scud and cumuli. 0} 20 0 074 || 58-4| 51-1] 7-3]) 2-9] 1-3] 18 |}17:—:—] 9-0 | Id. {in ragged masses. 2 | 106 | 56-8| 52-2| 4-6|| 1-2] 0-3) 19 || 16:—:—)] 9-0 | Scud, nimbi, and cum.-str.; some of the seud hanging 4 | 131 | 58-6] 52-3} 6-3|| 0-7] 0-5| 12 || 16:—:—)| 9-8 | Scud and cum. ; cir.-str.; a peal of thunder heard to E. ; 6 169 | 53-0} 49-6} 3-4|| 0-8] 0-1) 16 | 15:—:—|] 98 Send and cir.-str. [very heavy shower of hail about 3. 8 215 || 52-4| 49.2! 3-2|| 0-2| 0-2] 16 || —:12:—) 9-0 || Cirro-strati, cirrous haze, and cirri. 10 254 || 44-5| 43-4] 1-1]/ 0-5] 0-1] 16 4-0 | Cirro-strati aud cirri. 18 || 29-449 | 45-7| 44-8] 0-9]| 0-2} 0-1) 22 | 5.5 | Cirro-cumulo-strati and cirro-strati; haze on horizon. © 20 | 503 | 51-2| 48-6) 2-6|| 0-1] 0-0] 28 |—:16:—] 6.0 | Td. ; haze on horizon. (0) 22 544 || 56-3| 51-8| 4-5] 0-2] 0-1) 31 | 20:16:— 2.0 | Masses of seud and loose cumuli in two currents. 0} 21 0 580 | 60-3| 54:0) 6-3]| 0-2| 0-1] 8 | 24:—:--| 5-0 | Cumuli; two or three peals of thunder to SE. and also 2 || 615 || 53-1| 52-1] 1-0]] 1-0] 0-5] 6 | 9-0 | Thunder-storm. [to N.O 4 | 655 | 58-7] 55-2] 3-51! 0-5] 0-2] 21 | 3.5 | Cir-cum.-str., cum., and haze; thunder to S. and SW. 6 || 672 | 59-0] 54-4 4-6] 0-3] 0-1] 16 | 1-0 | Cumuli and cirro-strati. (0) [since 2"@ 8 || 722 || 53-3] 50-4/12-9|| 0-3] 0-2) 20 | —:26:—| 3-0 Cirro-strati and cirri to W.; cumuli to E. May 15¢ 04, Observation made at 0b 6™, 1h 45™, it commenced raining, the drops being very large; at 1 1648b, Coloured parhelia and portion of a solar halo. 17418, Observation made at 18> 7™. May 204 2). Between 14 45™ and 2h 0™, three peals of thunder heard towards the SE. ; slight shower. May 214 2, Thunder-storm since about 1" 20", chiefly to northwards ; the intervals varying from 2% to 8%, generally about 5% ; at 1h 37™, a very brilliant flash to NNE., consisting of three simultaneous streaks, followed immediately by a single one, from the horizon to 20° altitude, the interval being 5° ; about h 50™, it commenced to hail very violently, some of the hailstones being about 0°3 inch in diameter, afterwards becoming rain. The clouds are chiefly thick black seud and cumulo-stratus, moving from various directions, but principally from ENE. ; the last peal of thunder was heard about 1» 50™, Daity METEOROLOGICAL OBSERVATIONS, MAy 21—28, 1846. 377 THERMOMETERS. WIND. cL ouds, eee Maximum Sues SS) Species of Clouds and Meteorological Remarks Time. || at 32°. || Dry. | Wet. | Diff. force in |From ee clouded. P 8 ? 1h, | 10™ h. in. e Ss ) Ibs. | Ibs. | pt. pt pt. pt 0—10. 21 10 || 29-750 | 46-2 45-3] 9-9 || 0-1] 0-0} 22 2-0 || Cirro-strati and cirri. 18 || 29-810 | 49-2] 47-8} 1-4) 0-1] 0-0) 24 | 19:—:—J] 8-0 || Misty scud; woolly cirri and cirrous haze. (0) 20 832 | 53-7| 51-3] 2-4) 0-6] 0-2) 18 |19:—:—J 9-9 || Scud; cirro-stratus. [cirro-stratus. 22 842 || 57-6| 52-2) 5-4|| 0-7| 0-3| 22 | 22:—:— | 10-0 || Masses of scud and loose cum.; dense homogeneous 22 0 862 || 58-6] 53-5] 5-1 || 0-9] 0-8] 18 | 22:—:—1|) 10-0 || Patches of seud; dense homogeneous cirro-stratus. 2 860 || 57-0} 52-4] 4.6} 1-1] 1-0] 20 || 22:—:—}} 10-0 Td id. 4 843 || 58-8| 53-2] 5-6 | 1-6] 1-8) 20 | 20:26:—|| 9-9 |) Scud; cirro-cumulo-strati. 6 831 || 53-6} 50-1} 3-5] 2-4] 1-3] 21 | 22:—:—|| 10-0 || Thick seud. 8 857 52-0| 50-0| 2-0)) 1-3} 0-8) 18 | 21:—:—|! 10-0 Id. 10 871 || 51-5] 50-2) 1-3 -7| 0-2) 20 | 21:--:—|| 10-0 Id. 18 |} 29-920 || 52-2| 50-0| 2.2) 0-3} 0-1| 26 | — : 28:— 9-9 || Dense mass of cirro-stratus. 20 || 29-970 || 53-2) 51-2} 2-0] 0-1} 0-1) 29 | —:29:—|| 10-0 || Cirro-stratous seud ; cirro-stratus; drizzling rain. 22 || 30-015 | 49-3] 48-6] 0-7]) 0-5| 0-3) 4 || 5:—:—|| 10-0 || Misty loose seud ; slight drizzle since 20". 23 0 014 || 52-3| 50-7} 1-6|| 0-2) 0-1) 3 7:—:—| 10-0 Id. 4 016 || 56-7) 53-2} 3-5|| 0-2) 0-2) 2 || 5:20:—}} 9-0 || Send; cirro-cumulo-strati. 4 || 30-008 || 56-9} 53-0} 3-9]| 0-2) 0-2} 8 || —:21:—|| 6-0 || Cirro-cumulo-strati and cirro-strati. (0) 6 || 29-991 || 58-7) 54-4 Ib 0-2} 0-1} 2 || 21:—:—|| 8-0 || Seud and cumuli. is) 8 998 || 56-0} 52-4/13-6|| 0-2} 0-1| 2 || 22:—-:— || 9-5 || Cirro-stratous seud and cirro-cumulo-strati. (s) 10 998 || 51-3} 49-7| 1-6 || 0-1) 0-1| 18 9-0 || Cirro-strati. 231) 29-988 || 56-4| 49-0} 7-4)) 1-1] 0-5| 22 || 24:27:27|| 4-0 || Masses of cumuli; cirro-cumuli and linear cirri. (0) 2418 || 29-878 || 54-4] 52-0] 2.4]} 1-7) 1-5) 24 ||24:—:28]| 7-0 || Scud; woolly cirri; cirro-strati. (>) 20 866 || 57-7| 53-8) 3-9]] 1-3] 1-1) 24 |} 24:—:—|| 9-5 Id. ; id. ; id. 22 867 || 58-0| 53-7) 4-3|| 2-6] 1-4) 20 || 23:—:—]) 9.9 Id.; cirro-strati and cirri. 25 0 828 || 60-8] 55-3} 5-5}| 2-2) 1-8] 22 || 24:—:—|| 85 Id.; cirro-cumuli and cirro-strati. 2 811 || 60-5} 54-8] 5-7 || 3-2] 2-6) 26 || 25:26:—|| 7-0 Id.; cirro-cumuli, mottled cirri, and cirro-strati. © 4 801 || 62-0| 55-2} 6-8]| 4-2} 2-0) 26 || 26:24: — 6-5 Id. ; id. 6 778 || 59-3| 53-5 |t5-8 || 3-8] 2-7] 26 || 26: 25:— 3-5 Id.; sheets of mottled cirro-strati. (Oo) 8 801 || 56-3) 51-3/15-0}| 3-5] 0-3) 27 | 25: —:— 5-0 Ides id. (0) 10 811 || 50-6] 45-8| 4-8|] 1-5] 0-4] 21 || 26:—:— 1-0 Id.; cirro-strati. 18 || 29-829 || 48-8/ 46-0) 2-8 || 1-8} 0-5} 22 || —:—:29 8-5 Woolly and mottled cir. and cir.-str.; patches of scud. 20 836 || 52-3] 46-2) 6-1|) 1:0} 0-6] 25 || 27:—:— 3-5 || Seud and loose cumuli; cirro-strati. (0) 22 838 || 54-6} 46-9| 7-7}| 1-2] 1-2] 26 || 27:—-:—|| 7-0 || Loose cumuli. (0) 26 0 838 || 57-7| 48-8} 8-9]| 1-6] 1-1] 26 || 27:—:— 4-0 Id. 2 837 || 59-1} 50-0} 9-1]| 1-8} 1-0] 24 | 27:—:— 8-0 Id. 0} 4 840 || 60-7} 51-4] 9-3 |) 2-6| 1-8] 24 }298:—:—]| 8.5 Id. 8 6 835 || 55-8} 48.4 |17-4|| 3-4| 1-8) 24 || 27:—:—}| 3.0 Id. 8 845 || 52-4) 47-0| 5-4] 1-7| 1-9) 22 | 26:—:27]) 5-0 || Scud; woolly and curled cirri. 10 831 || 49-9) 44-8] 5-1]} 1-6] 0-9} 21 || 27:—:— 5-0 Id.; cirro-strati. 18 || 29-793 || 49-9) 46-3| 3-6] 1-3| 0:8] 22 | 26:—:—|} 10-0 || Scud; cirro-strati above. 20 795 || 51-5} 46-8| 4-7]| 1-0] 0-4| 23 || 26:—:—J]| 10-0 Id. ; id. 22 773 || 53-7) 47-3| 6-4) 1-7] 1-0) 26 | 26:—:—| 9.5 Id.; cirro-strati and cirro-cumuli. 27 0 769 || 54-1} 48.2} 5-9]} 1-9} 1-1) 25 || 26:—:—J] 10.0 || Thick scud; cumuli on horizon to S. and N.; cir.-str. 2 765 || 53-6| 49-8] 3-8] 2-0] 0-6] 26 || 26:—:— 8-5 Thick scud; cum. on horizon to S. and N. ; cir.-str.; slight shower. 4 763 || 56-4] 48-0} 8-4) 2-0] 1-7) 29 ||27:—-:—||_ 9.0 Id. ; id. to E. and N.; rain” 6 801 || 52-3) 46-4) 5-9|| 2.3] 0-4) 2 ||27:—:—|| 8-0 || Thick scud and loose cumuli. [to E, about 74, 8 822 || 51-0} 46-8] 4-2 | 0-3) O-1 0 |27:—:— 9-5 Scud and cir.-str. ; drops of rain occasionally ; a portion of a rainbow 10 854 || 47-0} 45-0} 2-0 0-1] 0-0} 28 || 295 :—:— 7-0 18 || 29-948 || 44-9] 42-2} 2.7 0:2! 0-1] 27 2-0 || Woolly cirri radiating from SSE. ; hazy on horizon.© 20 974 || 49-4 | 43-5] 5-9]) 0-4| 0-3} 30 ||29:—:—|}} 2-0 |) Loose cumuli. (0) 22 | 982 | 54-4| 46-6| 7-8] 0-7| 0-3] 98 || 1:—:—] 6-0 || Cumuli. 28 0 || 29-997 || 55-3| 47-2| 8-1] 0-5] 0-4] 0 1:—:— 3-5 Id. (0) 2 || 30-006 || 57-7| 48-4| 9-3] 0-6} 0-3} 29 || 30:—:— 3-5 Id. Oo 4 |/30-000 || 58-9} 49-2] 9-7] 0-6| 0-1] 26 || 26:—:— 4-0 Id.; woolly cirri. oO 6 || 29-992 || 60-1| 50-7 |9-4 | 0-4] 0-0} 27 7:-—— 3-5 || Scud, loose cumuli, and cirro-strati. (>) MAG. AND MET. OBs. 1846. 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. 8 DAILY METEOROLOGICAL OBSERVATIONS, May 28—June 4, 1846. THERMOMETERS, WIND. Clouds ion a Maximum Se Cur8.2 Cin BEY, Species of Clouds and Meteorological Remarks Time. |} at 32°. || Dry. | Wet. | Diff. force in |Pyom aS clouded. P 5 ? 1b, |10™. ie pe in. S s 2 lbs. | Ibs. pt. pt. pt. pt 0—10. 28 8 || 29-995 || 56-5) 49-3 |{7-2] 0-1) 0-0) O || —:28:—] 9-5 |) Cirro-cumulo-strati and cirro-strati. 10 | 30-014 || 51-3] 46-5] 4-8] 0-2] 0-0] 16 | 2-0 || Cirro-cumuli and cirro-strati. 18 | 30-066 || 47-0} 45-2] 1-8] 0-2| 0.0} 18 | 9-0 Thick woolly cirri rad. from SSE. and NNW.; solar 20 064 || 54-8] 49-7] 5-1] 0-1] 0-0] 21 |} —:—: 28 8-5 Id. (s) [halo.6 22 057 || 59-1} 51-3] 7-8 || 0-2] 0-1] 22 ||—:—:28)| 3-5 || Woolly and tufted cirri; masses of cumuli; a tendency 29 0 047 || 64-8} 55-0] 9-8] 0-1] 0-1} 4 ||24:—:—] 3-5 | Cumuli; cirri. (0) [to a halo in the cirri.© 2 037 || 68-8} 57-5 |11-3 | 0-4] 0-3} 22 || —:24:—|| 9-5 |) Cirro-cumulo-strati. (3) 4 012 || 68-3] 57-2|11-1]) 1-1] 0-7] 22 || —:24:—j| 8-5 || Large cirro-eumulo-strati and loose cumuli. (0) 6 007 || 65-0} 56-0} 9-0]] 1-6} 0-5| 22 || —:24:—|| 3-0 | Cirro-cumulo-strati. (3) 8 009 || 59-9} 54-5 |t5-4|) 1-4] 0-4] 20 || —:24:—|| 3.0 Id. fo} 10 015 || 52-3} 49-1| 3-2) 0-6} 0-0) 18 || 0-8 || Cirro-strati. ») 18 || 29-979 || 52-3] 49-2} 3-1]) 0-6] 0-0} 20 | 2-5 |) Cirro-strati, woolly cirri, and cirrous haze, (0) 20 985 || 60-3} 54-3|°6-0] 0-2] 0-2| 22 || —:24:—) 7-0 || Cirro-cumulo-strati ; cirro-strati. (0) Dae 978 || 60-1] 53-1} 7-0} 1-5] 1-3) 28 | 23:—:—|| 3-0 || Scud and eumuli. (0) 30.0 982 || 62:0} 53-9] 8-1]] 1-2] 1-1] 28 ]}23:—:—] 5.0 Id (0) 2|| 987 || 63-1] 54-4] 8-7] 2-1| 0-5] 25 |24:—:—]) 2-5 Ia. (0) 4 | 969 || 65-0} 55-1) 9-9) 1-1] 0-6) 30 |} 25:24:—] 25 Tay; haze on horizon. (0) 6 | 967 || 64-2) 55-5 78-7 || 0-8/ 0-3) 24 |27:—:—|} 3-5 Id. ; id. ; woolly cirri, (0) 8 | 977 || 59-3] 53-0 |16-3] 0-5| 0.2} 23 || 29:—:24]| 6-0 || Scud and masses of cirro-stratus ; woolly cirri. (9) 10 || 29-984 || 53-6] 50-3| 3-3) 0-3| 0.0} 24 | 1-0 || Sheets of cirro-strati and cirri. ») 231) 30-002 63-8 | 56-3] 7-5|| 0-1 | 0-1 8 || 22:—:— 2-0 || Detached masses of cumuli ; streaks of cirri. (o) 3118 | 29-961 || 48-7] 47-2/T1-5|| 0-9} 0-0} 20 0-2 || Patches of cir. and cir.-str. ; hazy on hor., like fog clear- 20 | 967 || 55-0} 51-0 |,4-0}) 0-1] 0-1) 22 | 0-2 || Cirriand haze near horizon.© __ [ing off; heavy dew.© 22 || 958 || 63-7| 56-0| 9-7) 0-1} 0-0] 22 | 0-2 Id. ; patches of cumuli to SE. © 0 | 949 || 69-4] 56-9|12-5|| 0-1} 0-0} 20 | 0-5 | Id. ; id. (0) 2 | 931 || 72-9} 59-2|13-7 || 0-2} 0-1] 30 | 6-2 Tae: patch of cumulus to E. © 4 922 || 76-2] 61-0 |15-2|| 0-2| 0-1] 16 | 0-2 | A few small patches of cumulus; milky haze. (0) 6 913 | 74-6 |f60-8 13-8 | 0-3| 0-3) 19 i 0-7 || Cum. and cum.-str. to W.; cum. toS.; hazy round hor. © 8 924 || 70-2) 60-4} 9-8 | 0-3} 0-0} 20 | 0-7 || Cirri and cirrous haze round horizon. (0) 10 | 949 | 58-5 /[56-2| 2-3] 0-1] 0-0] 16 | | 1-0 | Td. ») 18 | 29-969 || 53-7| 51-7 |f2-0| 0-1 | 0-0) 24 0-5 || Misty on horizon. (0) I 20 || 972 || 61-8] 58-2|13-6 | 0-1) 0-0] 14 || 0-2 || Hazy. (0) 22 | 972 || 72-3| 62-6) 9-7 || 0-4] 0-1] 24 | 0-4 || Small patches of cum. in a brownish haze about the hor. @] — 0 968 | 76-6) 64-7 |11-9 0-5| 0-4] 18 | 23:—:—) 2-0 | Masses of cum.-str. and small patches of cum. ; hazy on | PA || 953 || 80-1) 65-3 |14-8 | 0-6| 0-5} 20 | 24:—:—J|| 6.0 || Cumuli and cumulo-strati. (0) [hor. © 4 953 || 73-8| 66-2) 7-6|| 0-4] 0-1] 23 | 20:—:— 10:8) || As before; a smart shower at 34h for lum; 2 or 8 peals of thunder since 3h 60m, ’ 6 950 || 74-3) 67-0 $73 0-2} 0-0} 12 2.0 || Cumulo-strati and sheets of cirro-strati ; haze on hor.© 8 955 || 71-1} 66-0 |f5-1 0:0! 0-0} 30 | —:24:— | 3-0 | Cirro-strati, cirro-cumuli, and masses of cumuli. 10 || 29-969 || 61-4) 58-8| 2-6] 0-0} 0-0 | 1-0 || Cirro-strati and cirro-cumuli to N. ») i | | 18 || 30-010 || 53 51-6 |f1-4 || 0-1] 0-0) 20 | 0.0 | Clear; haze on horizon. (0) 20 010 | 61-4] 58-4|13-0] 0-1/ 0-0} 26 0-0 | Ia; id. ro) 22 | 30-000 | 71-9| 64-6} 7-3) 0-1} 0-0} 16 0-0 || Id.; id. (0) 0 || 29-987 || 76-3| 61-5 |14-8 || 0-1] 0-0] 17 0-5 || Id.; cumuli and haze on horizon. fo) 2 975 || 78-6| 64.2|14-4|) 0-2] 0-1) 5 || 21:—:—J 3-0 | Cumuli and cumulo-strati; hazy on horizon. | fo) I 4 953 | 81-7 | 66-7 |15-0}) 0-2] 0-1) 19 | 20:—:—] 2.5 / Id., haying an internal motion. © 6 942 || 79-7 \f65-2 |14-5 || 0-2] 0-1} 26 2-5 | Id; cirro-strati; haze on hor. © 8 956 || 71-7| 64-0] 7-7]) 0-3| 0-1] 25 4-0 | Cumuli, eumulo-strati, cirri, and cirrous haze. (0) 10 961 || 63-2|160-2| 3-0|| 0-1] 0-0} 20 | 2-0 || Cirro-strati, cirri, and cirrous haze. »)) 18 || 29-960 | 56-4 | 55-0 |f1-4 |] 0-1] 0-0) 22 | 0-3 || Haze on horizon, with a few patches of cirro-strati im 20 960 | 63-0] 59-5/13-5 || 0-1| 0-0) 22 | 0-0 | Haze near horizon. © [terspersed. © 22 953 || 72-7| 66-2| 6-5} 0-1) 0-0) 1 | 1-5 || Cirro-cumulo-strati, cirro-strati, and cirrous haze. © 4 0 933 || 79-8| 67-5 |12-3 | 0-1} 0-2} 22 } 1:5 |} Cumuli and cum.-str. ; much haze in the atmosphere. Of 2 913 | 81-6} 65-2)16-4 | 0-4] 0-2] 21 | 16:—:— 6-5 | As before; distant thunder to E., first heard about 14. @]} 4 899 || 82-0| 65-7116-3|| 0-4| 0-2} 21 || 17:—:—]]_ 2-5 | Cumuli and cumulo-strati; atmosphere very hazy. mS The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, BH. = 8) 8S. = 16, W. = 245 motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stvatus), and Ci. (cirrus), are indicated in a similar manner, June 34, The dry thermometer was several times observed as high as 824, ee 10 18 20 22 11 0 2 493 494 29-720 774 793 817 840 DatiLty METEOROLOGICAL OBSERVATIONS, JUNE 4—11, 1846. THERMOMETERS. WInD. 63-7 69.2 56-9 58-5 56-4 60-0 59-0 60-7 59-3 55:1 58-8 61:5 65-7 66:0 Wet. 64-5 62-4 51-1 |f4-0 53-9 |14-9 58:4] 3-1 55-7 |10-0 54-8 |11-2 Diff. Maximum force in 1h; 10™ 1-0 From | Clouds, |} Se. : C.-s. : Ci.,|| moving from pt. pt. pt. 18: 222): Sky |clouded.|/ 379 Species of Clouds and Meteorological Remarks. Cumuli and cumulo-strati; atmosphere very hazy. Cirro-strati and haze round horizon. Woolly cirri, cirro-strati, and cirrous haze. Sheets of woolly and mottled cirri. Woolly and linear cirri ; haze on horizon. Id. Id. ; cirro-strati and haze on hor.© Thick woolly cirri; patches of cum. on E, and SE. hor. oO 10} ») 10) oO 10} || Cumuli ; woolly cirri and cirro-strati. 8 As before; Cheviot obscured bythe haze; solarhalo at5®. © Thick woolly cirri; cum. to E. ; very hazy on horizon. © Cirro-stratous scud ; mass of cirro-stratus. Thin cirro-cumuli and cirri over the sky. Cirro-cumuli, cirro-strati, and linear cirri. Woolly cirri; cirro-strati and cirrous haze. Td. ; cumulo-strati; very hazy on horizon. © Wool. & mot. cir.; cum. & cum.-str. on hor.; very hazy.@© Woolly cirri, becoming thicker ; cumuli. Cir.-cum.-str., cir,-str., and cir. ; cum. and haze on hor. ; halo at 51.9 Cir.-str., cir.-cum., woolly and diffuse cir.; hazy on hor. © As before. oa Cum.; patches of cirro-strati; much atmospheric haze. © Thick seud. Id. OO + || Seud to N.; dense mass of cirre-stratus. Cirro-stratous scud. Nearly homogeneous. Dense scud and cirro-stratus. Dense seud. Id.; slight drizzle. Cir.-str. seud and cir.-cum.-str. ; misty on horizon. Cirro-cumulo-strati and cirro-stratous scud. Patches of loose scud ; cirro-stratous scud. Cir.-cum.-str. and loose cum. ; cirro-strati on N. hor. © Td. and cirro-stratus ; cumulo-strati on hor. Scud and loose cumuli; cirro-strati ; cumulo-strati. Thick scud and cumuli; distant thunder to E. Cum. & cir.-cum,-str.; cum.-str. & haze round hor,; electric-like to E. Cir.-cum. and cir.-str. ; ragged cum. and haze on hor.@ Cirro-stratous scud and cirro-cumulo-strati ; cir.-str. Dense uniform mass of clouds. Scud; densely overcast. Id.; cirro-cumulo-strati and cirro-strati. Loose scud ; cum. on N. hor.; dense cir.-str.; solar halo.@ Cir,-cum, ; cir.-str.; cum, to N.and E.; solar halo. © | Masses of secud & loose cum. ; homogeneous cir. haze & Send; cir.-str. seud and cir.-str.; drops of rain. [cir.-str. Seud, moving rapidly ; rain? since last observation. Thick smoky scud; cirro-strati above. Seud ; woolly cirri. Id. ; id. ; cirro-strati. Id. ; id. ; id. Loose edged cum.; wool., mot., & diffusecir. & cir. haze. Cirro-cumulo-strati and cumuli; cirro-strati. ®0000 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), ©.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. June 54 2h, Very hazy on horizon ; broken portion of a halo. June 914, Very thick electric-looking scud and cumuli, some of the scud hanging in detached patches ; uniform to E., distant thunder there occasionally since 34. 380 Datty METEOROLOGICAL OBSERVATIONS, JUNE 11—18, 1846. | THERMOMETERS. WIND. Cloua Gott. | : Se. : C.-8.: Ci Sky Mean || METER || Maximum pe Species of Clouds and ¥ ri Fi Time. || at 32°. || Dry. | Wet. | Diff. a wean teed clouded, pee Teteorological Remarks a. h in, ° ° e || ts. | Ibs. | pt || pt. pt pt || 0—10 11 4 || 29-867 || 63-5) 56-0] 7-5 || 2-1) 1-2} 20 |\23:—:—|| 9-0 || Scud; loose cumuli; cirro-cumulo-strati. 6 881 || 62-7] 56-2) 6-5|| 0-8} 0-3] 19 || 24;—:— 9-9 || Thick seud, cirro-stratus ; drops of rain. 8 893 || 59-2) 56-7| 2-5|| 0-4] 0-1] 20 || 23 : 22: — 9-8 || Scud; cirro-cumulo-strati. 10 | 905 || 57-6| 54-9| 2-7 | 0-6| 0-6) 22 | 23:—:—|| 9-8 || Cirro-stratous seud ; cirro-strati and haze. 18 || 29-939 || 53-2] 52-2) 1-0 | 0-5} 0-0} 20 ||20:—:—]| 6-5 || Loose misty seud. ® {horizon. © 20 944 || 61-1! 57-9) 3-2) 0-5| 0-3} 18 ||} 21:—:—)}| 6-0 || Scud; cir.-cum. and patches of light cirri ; cumulion 8. 22 932 || 64-7| 58-7) 6-0|| 6-8] 0-8] 21 ||} 22:—:—]} 3-5 || Loose cumuli; cirro-strati. (0) 12 0 925 || 66-7| 58-2} 8-5 |) 1-4| 1-0] 17 | 22:—:—|| 9-5 || Seud and loose cumuli; cirro-strati above, 8 2\| 902 || 68-4} 58-2)10-2)| 1-5} 1-1] 20 ||} 23:—:—] 5:5 Id. ; cumulo-strati on E. horizon, 4 || 886 || 70-3) 59-0 /11-3)) 2-0) 1-5) 20 22:—:—)|| 5-0 || Masses of cumuli; cirro-cumulo-strati. 8 6 | 877 || 67-7| 59-7| 8-0|| 1-6] 0-5] 18 ||22:—:—|| 7-5 Tats woolly cirri. e 8 878 || 62-4] 57-2|\t5-2)) 1-4) 0-4) 19 1-0 || Cirri. (0) 10 || 890 | 57-0) 54-2 {2-8 || 1-0] 0-1) 3 |—:23:23]) 6-0 || Woolly cirri and cirro-cumuli; cirro-strati and haze. 18 | 29-876 || 67-0] 55-6] 1-4|| 0-3] 0-0} 26 5-0 || Cirro-strati, cirri, and cirro-cumulo-strati. (0) 20 897 || 62-0| 58-4| 3-6|| 0-4] 0-1| 22 ||25:—:—]) 9-9 || Thick scud. 22 || 898 || 66-1} 59-8] 6:3]|| 0-4] 0-4] 24 || 24:—:— 9-0 || Scud; cirri; cirro-cumuli. 13.01 897 || 69-0} 60-6| 8-4 || 0-9} 1-2| 24 | 24:—:—|| 7-5 || Seud and loose cumuli ; cirro-cumuli and cirro-strati. © 2 |) 882 || 73-2} 60-9 |12-3 || 1-1] 0-6| 21 || 24:—:—]| 8-0 Tdi id. ; woolly cirri. [s) 4 888 || 71-8] 61-7 |10-1|| 0-8} 0-5) 25 ||23:—:—]| 8-0 Td. ; hazy cirro-strati and cirri. © 6 || 889 || 68-6| 59-8| 8-8)| 0-9] 0-6] 21 || —:24:—|| 10-0 |} Cirro-stratous seud ; cirro-strati. {eirro-cumuli. 8 884 || 67-2] 59-8| 7-4|| 0-4] 0-2} 21 || —: 26:24 5-0 Id.; wo. and mot. cir.; cir.-str. with mot. edges; 10 | 902 || 62-8) 58-0) 4-8 || 0-2] 0-2) 21 ||—:—:24]) 7-0 || Woolly and mottled cirri and cirro-strati. 2323) 29:904 || 72-7| 64-5 8-2|| 0-4] 0-3) 22 || 25:—:—|| 4-0 || Cumuli; cirri and cirro-strati; solar halo at 4”. (0) 14.18 | 29-944 || 55-3| 53-7 |F1-6|| 1-9| 0-0) 14 || —:27:—|| 7-0 || Cirro-cumuli, cirro-strati, and cirri. (>) 20 | 949 || 60-7| 56-3 |{4-4 || 0-3) 0-1] 18 || 24:26:—|| 4-0 || Masses of scud to W,; cir.-cum., cirri, and cir. haze.O 22 || 971 | 66-3| 59-4] 6-9|| 0-6| 0-7] 19 || —:25:—|]| 4-5 || Cirro-cumuli, woolly cirri, and cirro-strati ; cir. haze.© 15 0 || 988 || 67-7| 59-7] 8-0}! 0-7| 0-4} 19 3-0 Ides cirrous haze. (0) 2 988 || 71-6| 61-6|10-0|| 0-5] 0-3) 24 || —:24:— 1-5 Ide woolly cirri; cirrous haze. (o) 4 979 || 73-7| 61-8|11-9|| 0-4) 0-3} 20 1-0 || Patches of cumuli; sheets of cirri. (0) 6 973 || 70-4| 62-0 |t8-4|| 0-4| 0-4] 20 ||—:—:24}) 7-0 |) Wo. and mot. cirri; cum. ; cir.-str. and haze on hor. © 8 || 29-998 || 66-9| 59-7| 7-2|| 0-6) 0-1} 22 7-0 || Woolly cirri and cirrous haze ; cirro-strati. >) 10 | 30-026 || 61-7| 56-0|15-7|| 0-3) 0-2) 2 4-0 Id) is cirro-strati. 18 || 30-077 || 53-7| 50-3 |t3-4|| 0-1] 0-0} 22 0-5 || Patches and sheets of cirri. (0) 20 O91 || 60-8| 54-3 |16-5 |) 0-1) 0-0] 10 0-3 Id. (0) 22 || 092 || 69-8} 60-3| 9-5 || 0-2] 0-2) 11 | 2-0 || Woolly cirri and cirro-cumuli; hazy on horizon. 0} 16 0|| 093 || 74-4| 62-0|12-4|| 0-1] 0-1] 14 || —:—: 24 0-5 Id. ; id. (0) 2 || 088 || 78-4| 64-0 |14-4|| 0-3) 0-1) 16 | 1-0 || Woolly cirri and cirro-strati ; id. 0} 4 087 || 74-2| 64-1|10-1|| 0-6] 0-3| 28 |, —:—:22]| 1-0 || Sheets of woolly cirri; patches of cumuli. © 6 092 || 72.2| 63-9 |f8-3 || 0-4] 0-2) 28 || 3-0 || Mottled and woolly cirri ; cirro-strati and haze on hor. © 8 | 100 || 69-2) 62-2] 7-0|| 0-2) 0-1) 24 || 3-5 || As before. (0) 10 115 || 61-7| 59-0 |{2-7 || 0-1) 0-0 1-5 || Cirri and cirrous haze. 18 | 30-114 || 53-9} 52-3 |f1-6|) 0-1) 0-0) 20 }} 1-5 || Woolly and feathered cirri. (0) 20 | 113 || 61-4) 58-1|13-3|| 0-1) 0-0} 20 || —:—: 28 1-0 Id. [o) 22 | 104 || 72-7| 64-3] 8-4|| 0-1) 0-1) 4 0-5 Id. [o) 17 0 094 || 77-9} 64-2|13-7|| 0-1} 0-0} 0 0-3 || A few cumulion S. and N. horizon ; haze on horizon.© Bul 073 || 79-8| 63-5 \16-3 || 0-2) 0-1] O || 0-5 Id. (0) 4! 045 || 81-8) 63-6)18-2 | 0-1) 0-1} 31 1-0 || Cumuli and haze. (0) {haze on hor.© 6 | 018 || 79-2) 66-8 |12-4|| 0-3) 0-3) 31 | 1-5 || Loose cum. ; patches of cirro-strati to E. ; atmospheric 8 || 029 || 74-4] 65-4] 9-0|| 0-2] 0-1| 21 | | 1-5 |) As before. (0) 10 | 045 || 66-0| 62-0} 4-0|| 0-1] 0-1} 4 | 1-0 || Cirro-strati and haze on horizon. 18 | 30-008 || 57-7| 56-1 71-6 || 0-1| 0-0 | || 0-0 || Much haze on horizon; heavy dew on the ground. © 20 | 30-007 || 64-3| 61-3 |13-0|| 0-0) 0-0] 30 | | 0-0 Id. (0) 22 || 30-000 || 73-2| 64-7| 8-5 |] 0-1| 0-0] 5 | | 0-2 || Patches of loose cum. to N. and SE. ; very hazy on hor. QO] 18 0 | 29-982 || 79-9! 68-8|11-1!! 0-2! 0-0' 4 | 1-0 |] Gumuli and haze on hor. (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. The motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. —— DAILty METEOROLOGICAL OBSERVATIONS, JUNE 18—24, 1846. 381 THERMOMETERS. WIND. Maximum fine a. Species of Clouds and Meteorological Remarks. Dry. | Wet. | Diff. I o S HPwWACawWMHE FHF pon! 79-3 65-6 | 76-7 73-0 Cumuli; thunder-storm. (See footnote.) Thunder-storm nearly ended. Dense mass of cirro-stratus. [s) Cirro-stratous scud ; cirro-strati and haze. (>) Tas id. Cir.-str.; cir.-cum, and cirri; parhelia seen at 18 30™.@ Cir.-str. and cir. haze becoming thicker ; a few cumuli. Woolly cirri; cumuli and haze round horizon. (0) Piles of cumuli to N. and W.; hazy on hor.; distant thunder to E. © Cum.-str. ; cirri; cirro-strati; distant thunder to E. © Cumuli and woolly cirro-stratus, [occasionally till 74, © Cir.-cum.-str.; large cum.-str.; cir.-str. and cirri; distant thunder Loose seud ; cir.-cum.; cirri.; cumulo-stration hor. © Scud; the wind sprung up about 9h and scud came up about 94 30™, Scud. Id. Id. Id. ; cirro-strati. Scud and cirro-cumulo-strati; woolly cirri. Seud ; woolly cirri, moving very slowly. 56-8 Woolly cirri; cirrous haze. 54-6 “3 |T4- : . : Ids? cirro-cumulo-strati. 51-2 I Scud and cirro-cumulo-strati. eoreooss SSo%° 59-2 ao 68-1 : . - : . Clear during the most of the day ; cirri in the evening. 54-0 5 : . z 5 e Woolly and mottled cirri; cir.-cum. and cirro-strati. 6 60-6 : : p : . Woolly cirri and cirro-strati. (0) 69-9 4 : i : a: : Id. (S) 75-3 E 5 - . :—:18] 8 nba very hazy on horizon. © 77-7 : : : - os : Id. ; id. (0) 76-0 i! . . = : 2 . Scud to SW.; cir.-str. and cir. haze, becoming thicker ; portion ofa halo. 73-8 . . . " i—: . Woolly cirri and cir. haze ; scud and cum, to W.; portion of a halo. 69-5 2: . . . = : | . Cumuli; mass of cirri and cirrous haze; distant thunder to W. 65-3 5 : B . —:15: . Loose and spotted cirro-strati ; mass of cirrous haze. 60-9 . . F H a E Loose cum. ; cir.-str. and cir. haze ; portion of a halo.@ 60-5 5 : A H :—:—| -0 || Scud ; dense mass of clouds; rain® since 194 30™, 63-3 < 5 . . | . Thick seud ; dense covering of clouds; rain! 64-0 . : . : oat . Id. ; id. ; rain? 63-4 . : +. : >—:—| ‘0 || Seud ; id. ; misty; rain”? 57-9 : - - . femet . Thick seud; rain?—* 52-7 . D / : —! . Td. ; id. 51-7 . : : . :—: . Id.; cirro-strati. 50-4 : . . 6 : : i Td. 47-1| 46-0] 1- . : : g \ Scud ; dense homogeneous mass of clouds ; rain! 50-0| 48-0} 2. . F a H Id. ; id. 5 rain?” 53-8} 50-2] 3- . : :—: 5 Id. ; id. 58-9| 52-7] 6: 5 . = : 9- Scud and cumuli; woolly cirri and cirro-strati. (>) 59-2] 52-6] 6- 8} 0: :—? -0 || Masses of scud ; dense homogeneous cir.-str. and haze. 59-9] 52-0] 7-9 : * i—! z Id. ; cir.-str. and cir. haze; portionof a solar halo. 59-81 52-4 |¢7-4|| 1- . =: . Masses of scud and loose cum.; cir. and cir. haze. © June 181 2h4h, Great piles of electric cumuli; masses of black scud and cumuli; uniform to E. ; very hazy ; distant thunder heard first at 15 50™, many peals since ; three flashes of lightning from 14 55™ till 2h 0™ to E. from horizon to altitude 5°, followed by irregular and rather faint peals. At 2 30™,a streak to SE., thunder in 308. 2 55™, There has been a continuous intermitting grumbling to E. and SE. since 2h; thunder has now commenced to SW. and W., three flashes seen to SW., altitude 5°, thunder following in about 25°. From this time there was an uninterrupted thundering, sometimes 3 or 4 flashes and peals in a minute; the flashes were generally from the horizon to an altitude of 7° or 8°, interval 208 to 25° ; about 3h 25™, the thunder had come nearer, the intervals 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. 3h 25m, Gusts of wind 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 108 ; 30™—40™, thunder chiefly to NW., the peals not so very frequent ; 48™, two very loud peals in rapid succession, intervals 345 and 145, large hailstones, with heavy rain. 8h 45™ to 46 0m, Occasional flashes, with thunder in about 125; very heavy rain. 450™, Clouds beginning to clear off from SW., rain ceased at 4h10™; a sharp peal was heard at 4 15™; very distant peals were heard occasionally afterwards ; during the storm the temperature fell to 60°:5. June 191 4h, 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- rature about 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. MAG, AND MET, oss. 1846. 5D 382 Darty METEOROLOGICAL OBSERVATIONS, JUNE 24—JuLy 1, 1846. LT | THERMOMETERS. WIND. . | Clouds, all [na oe Se.:O.8.:0i.|| Sky ta gly | sabe rag aes moving landed! Species of Clouds and Meteorological Remarks. | 1h, } 10", ea ad. h in. |e ° 5 Ibs. | lbs. pt. pt. pt. pt. 0—10. 24 8 || 29-101 || 55-7} 50-7 |15-0]/ 0-4} 0-1} 22 7:0 || Nimbi near hor.; cir.and cir.-str.; indistinct parhelion. © 10 122 || 49-5] 47-5| 2-0] 0-3} 0-1| 20 3-0 || Cirro-strati and cirrous haze. 18 || 29-206 || 49-2} 46-8 |f2-4]) 0-2] 0-0) 23 |} —:21:—] 7-5 || Cirro-cumuli. (0) | 20 223 || 52-0] 49-8|12-2] 0-1] 0-0) 24 3-0 || Masses of scud and cumuli ; cirro-cumuli. (0) 22 234 || 59-6] 54-5] 5-1} 0-1] 0-0 20 || 22:—:— 3-0 || Scud and loose cumuli; woolly cirri. © [rain to E. 25 0 238 | 62:0) 54-4| 7-6|| 0-1] 0-0} 22 || 18:—:—|| 9-7 | Seud and heavy masses of loose cum.; loose cir.-cum.-str.; 2 272 60-1} 54:0) 6-1]) 0-3} 0-1} 12 |) 16:—:— 9:8 As before ; a peal of distant thunder to SE. at 1h 55™; drops of rain. ; 4 306 | 56-2} 52-8} 3-4] 0-9] 0-1 6 9-5 Loose scud ; mass of cir.-str.; cum.-str, on horizon; rain falling to S.; . 6 315 | 59-0| 54-4] 4.6] 0-1] 0-0) 12 || —:21:—]| 8-5 | Cir-cum.-str. andcir.-str.; cum.-str.@ [in?—Jsince 2" @] 8 332 | 52-0} 49-4) 2-6]) 0-3| 0-0} 20 ||, —:—:20]} 3-0 || Woolly cirri ; cirro-strati and cumuli. el 10 356 || 46-0} 45-4] 0-6]] 0-1] 0-0} 18 0-5 || Cirro-strati and haze on horizon. . 18 || 29-402 || 43-5] 43-2|70-3 || 0-0| 0-0 10-0 | Fog; trees invisible at 250 yards. 20 397 | 50-1} 49-2)10-9] 0-0] 0-0) 6 || —:16:16)) 6-0 | Sheets of cir.-str. and woolly cir.© [of asolar halo. 22 384 || 61-2] 54-2] 7-0]/ 1-2) 1-0| 14 |} 18:—:—|| 9-0 || Seud and loose cum. ; woolly cir. and cir. haze ; portion 26 0 372 || 63-4| 56-0} 7-4]) 1-4] 0-6] 13 || 11:—:—J 10-0 Ids; dense mass of cirrous haze. @ 2 356 || 60-0] 54-2) 5-8]) 1-6] 0-9} 10 || 14:—:—| 10-0 | Scud; mass of cirro-stratus. | 4 338 || 57-7] 54-7| 3-0) 1-2] 0-4] 12 || 14:—:—| 10-0 | Id.; id. ; rain!—* 6 317 || 57-6] 55-2] 2-4] 0-4] 0-3] 14 10-0 Id. to W.; id.; rain”? . 8 326 || 55-5] 53-4] 2-1] 0-5| 0-2] 14 |] 14:—:—]| 10-0 |! Scud; id. ; rain! . 10 336 || 53-5 52.3} 1-2] 0-3] 0-1) 10 |) 15:—:—]] 10-0 | Id.; id : 18 || 29-318 || 52-0} 51-1/t0-9] 0-1] 0-0) 20 1:0 | Sheets of cirro-strati. (0) 20 329 || 56-7] 54-0|12-7|| 0-1] 0-0) 24 | 18:—:—l}| 3-0 |) Scud and loose cumuli. Oo} | 22 324 || 62-5) 51-9/10-6] 0-3} 0-2] 19 |}18:—:—|| 85 det cirro-strati. Se] 27 0 344 || 62-7] 53-3) 9.4] 0-4] 0.2] 16 ||18:—:—|]] 9-5 | As before; shower‘ about 10™ since. [looking to E.Q] 2 354 || 67-8] 59-0] 8-8] 1-0] 0-7] 22 || —:17:— 5-0 || Cir.-cum.-str. ; cum.-str. on hor.; nimbi to SE.; electric- 4 379 || 60-6| 55-8} 4.8] 0-9] 0-1| 22 || 17:—:— || 9-9 | Thick send and cirro-stratus ; loose cumuli on §S, hor. 6 364 || 65-0] 57-9] 7-1]) 0-6| 0-3] 18 ]}18:—:—|| 85 | Seud ; cumuli and cumulo-strati on horizon ; rain’? ( 8 405 || 58-0| 56-0} 2-0]| 0-3} 0-1} 19 ||} 18:—:—} 9-8 | As before; rain? : 10 429 || 55-5] 54-4] 1-1]) 0-1] 0-1} 22 |} —:17:—|| 6-5 || Cumulo-strati and cirro-strati. »)) ‘ 234\| 29-496 || 65-7} 59-0| 6-7] 1-0} 0-3} 16 || 16:—:—] 10-0 | Loose cum. ; thick cir.-str. ; heavy rain in the evening. 28 18 || 29-335 || 56-7] 53-2|t3-5|| 2-3| 0-5] 18 |} 19:—:—|| 2-0 || Seud; cirro-strati on S. horizon. (0) 20 332 || 60-6] 54-8 ip 2-0| 1-5] 18 || 19:—:—|]| 7-0 | Seud and loose cumuli. 2) 22 318 || 63-8] 56-5| 7-3] 2-6] 2-0] 18 || 19:—:—)}| 6-5 || Loose cumuli; rain falling to SE. 29 0 310 || 64-3] 55-6] 8-7]| 3-3] 1-5] 19 ||} 18:—:—J| 8-0 Taos sheets of cirro-strati. (9) 2 303 || 62-8| 57-0| 5-8]| 3-5} 2-0] 17 || 19:—:— 7-0 || Scud and loose cumuli ; slight shower. | 4 268 || 63-3| 56-4] 6-9]| 7-5| 3-5] 19 ||/19:—:—}| 3-0 | Scud and cum, ; woolly cirri to E.; nimbiround hor.Q] — 6 248 || 61-3] 54-0} 7-3]) 7-1] 4-5] 19 || 18:21:21]] 7-0 | Seud and cumuli; woolly cirri and cirro-cumuli. 8 275 || 58-1) 55-0] 3-1]| 6-6] 1-8] 19 |} 20:—:—J}| 9-0 || Seud and cirro-strati. 10 290 || 57-3} 54-2) 3-1]} 2-1] 1-3] 17 |} 20:—:—j]} 9-7 || Seud. ; 18 || 29.296 || 55-4] 53-7| 1-7] 2-4] 0-6] 20 || 20:—:—|| 9-5 | Thick scud, cirro-cumulo-strati, and woolly cirri. 20 | 292 || 59.0| 55-3| 3.7|| 2-6| 2-4| 18 |}o1:—:—]] 9.5 Td. ; id. ; showers occasionally. 22 320 || 58-7] 54-8] 3-9] 3-6] 1-8) 20 || 21:—:—} 10-0 Td. ’ 30 0 336 | 62-1] 57-2) 4-9} 2-7] 2-1] 18 |} 21:—:—| 9-9 Id.; occasional slight showers. . 2 360 | 60-3] 55-7| 4-6] 6-0] 3-0) 20 || 21:—:—|| 10-0 Id. ; id. % 4 391 | 58-0] 55-1] 2-9] 3-9] 1-0] 20 |/21:—:—]| 10-0 || Scud; rain? 6 411 | 58-0! 54-0} 4-0] 2-4] 0-7] 20 ||21:—:—|| 9-0 || Masses of seud and loose cumuli; cirro-strati. (>) 8 417 || 56-5| 53-6] 2-9]| 1-9| 0-9] 22 ||22:—-:—]] 8.0 || Scud; sheets of woolly cirri. 10 454 || 54-4] 51-6] 2-8] 1-6] 0-3] 19 | 23:—:—|| 5-0 || Id. 18 || 29-532 |) 53-5] 50-8] 2-7]| 1-8] 0-7} 21 || 25:—:— 7-5 || Scud and cirro-cumulo-strati ; cirro-str. and woolly cir. 20 || 548 || 58-3] 53-7| 4.6] 1-2] 1.0] 21 | 24:—:—]} 95 Id.; id. 22: | 546 | 61-9] 55-8| 6-1]| 1-2] 1-2| 20 ||22:—-:—|| 10-0 || Masses of cumulous scud ; homogeneous cirro-stratus. 1) | ia Pd 61-1| 56-1| 5.0]) 1-4] 0-6] 21 ||21:—:—]| 10-0 || Scud; homogeneous cirro-stratus ; drops of rain. 2 504 | 60-6} 57-1} 3-5] 1-4] 1-0] 19 || 20: —:—]| 10-0 Id. ; rain! 4 | 467 | 61-5} 58-4] 3-1] 1-6' 0-5} 20 || 19:—:—|I 10-0 Td. | The direction of the wind is indicated by the number of the point of the compass, reckoning N. ='0, B= 8, 8.= 16, W. = 24. Thaw 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, JULY 1—8, 1846. 383 THERMOMETERS. WIND. Cloud Gott. || Baro- Maxi Se. ee: “Ci Sky Mean || METER BO: Sipe He Species of Clouds and Meteorological Ri ks. | Time. |) at 32°. || Dry. | Wet. | Diff. idea From| ™eving) clouded. oer ene P eh in. es 7 iW Tbs. | Ibs. | pt. || pt. pt. pt. 0—10. 1 6 || 29-440 || 60-6| 58-2) 2-4]| 0-8) 0-5) 17 || 20:—:—j}) 10.0 || Seud.; rain”? 8 432 || 59-4| 57-6| 1-8|| 0-9} 0-3} 20 || 21:—:— | 10-0 Id. 10 443 || 58-8) 57-6} 1-2) 0-5} 0-4] 20 | 24:—:—|| 9.5 Id.; cirro-strati. 18 || 29-522 | 59-9) 55-7| 4.2] 0-7| 0-1] 22 || —:20:—]| 9.5 || Cirro-stratous scud and cirro-strati ; woolly cirri. [s) 20 eee a 54-8 |f6-5 ue 0-3) 18 || 24:—:—|| 9.0 || Seud; cirro-strati and woolly cirri. (s) 22 63:0} 55-6] 7-4|| 1-2) 1-0] 21 || 22:—:—]| 9.5 Id. ; cirro-strati. ZO a 64-2| 57-3] 6-9]| 1-2} 0-8} 22 | 23:—:—J]| 5.0 || Scud and loose cumuli; sheets of woolly cirri. (0) 2 46 || 65-8} 57-6) 8-2] 1-4) 0-7] 24 ||23:—:—| 8.0 Id. ; id. 4 669 || 67-5| 61-4] 6-1]] 1-2] 0-7] 22 ||24: —:—]| 9.5 Id. ; cir.-str. and woolly cirri; cum. 6 679 || 67-0| 60-6 |t6-4|| 0-9) 0.4] 18 || 24:—:—J]) 9.0 || Scud and cumuli ; cirro-cumuli and cirri. 8 697 || 62-4 59-0 |]3.4)| 0-5| 0-2) 20 ||25:—:—|| 9.7 || Thick cirro-stratus and scud. 10 715 || 59-8] 57-2! 2-6]| 0-5| 0-0) 20 10-0 || Cirro-strati, cirri, and cirrous haze. 18 || 29-728 || 60-0} 59-0) 1-0)| 0-3) 0-2) 20 10-0 || Scud ; dense mass of cir.-str. ; shower® 10 minutes since. D2 753 | 615) s01| 24] 17] 25] 17 [19 ry dsc, 00 80 | " : r i é ; oo = “ cud. 3.0 776 || 62:9) 59-2) 3-7]) 3-0] 1-5] 17 ||}20:—:—J/) 10.0 Id. H 2 786 || 63-6 59-3 4:3 || 2-9) 1-6} 20 || 20:—:—|| 9.7 || Scud; cirro-cumuli and cirro-strati. 5 ie — ie om ree 1-6] 23 || 21:—:—]| 9.9 Id.; cir.-cum.-str. and woolly cir. ; cum.-str. to E. | . 7| 3. +2! 0-6} 20 || 20:—:—|| 10.0 Id. 8 797 || 61-3} 57-4) 3-9} 1-1| 0-1} 14 || 20:—-:—J 9.0 || Seud and cirro-strati. 10 816 || 59-8} 56-6} 3-2|/ 0-3) 0-2} O || 20-—:—|! 10.0 || Seud. 18 || 29-816 58-8 55-9} 2-9]! 1-3) 0-7) 16 || 20:—:—J| 9-9 |] Scud and loose cumuli; Cheviot obscured. a4 a ce oe ye ide 1-0] 17 | 21:—:— | 9-9 || Scud; dense mass of cirro-stratus. ; 64- 2) 4 1-7} 1-5} 20 |} 20:—:—]| 9.8 Id. 40 845 || 64-5} 60-2] 4:3 || 2-1] 0-4] 18 10-0 Id. 2 838 || 69-2} 62-6] 6-6}) 1-5] 1-1] 16 ||121:—:—]) 6.5 Id.; linear cirri; the clouds broke up at 14, (0) : a ae ah, : Ae 0-4) 22 ||18:—:—|| 2.0 || Patches of scud; woolly cirri and cirro-strati. (0) m 52. -7| 0-3} 22 1-0 Id. ; id. (0) 8 790 || 63-2 58-3 4-9) 0-5) 0-5] 20 0-5 || Cirro-strati on horizon. 0) 10 787 || 56-0} 54-6] 1-4]/ 0-3] 0-0) 18 0-5 || Haze and cirro-strati on horizon. ») 23}|| 29-534 || 76-1| 68-3) 7-8} 0-3) 0-0] 14 | _:20:—|| 2.0 || Cirro-cumuli and cirro-strati. (0) 5 82 vas 61-6} 60-2| 1-4) 5-8] 0-0! 8 4:15:—|| 10-0 18 || 29-074 || 56-3) 54-0) 2-3]/ 1-8) 0-8} 20 |} 21:—:—]| 9.5 || Scud; cirro-strati and cirro-cumulo-strati. [tion. 20 087 || 56-5} 54-4/| 2-1} 1-7] 1-8] 20 || 20: —:—|| 10.0 Id.; dense mass of cir.-str, ; rain® since last observa- ¥ a He) vate 2S 4 ag 1-3] 18 || 20:—:—]] 10-0 Id.; homogeneous mass of clouds ; rain?—3 ‘ ‘ 1-0; 18 || 18:—:—] 10.0 1s Bee id. ; id. 2 100 || 57-0} 55-6! 1-4]! 1-8] 0-8] 18 || 19:—:— | 10-0 Toss id.; rain! 4 099 58-5 | 55-6) 2-9]! 1-3] 0.4] 18 |} 20:—:— | 10-0 Id.; undulated cirro-strati; stratus on Cheviot. 6 115 || 56-3) 55-0) 1-3] 0-6] 0-4) 20 || 22:25:—J] 10-0 || Two currents of scud. 8 172 |) 54-8| 52-6] 2.2) 1-7] 1.0] 30 || 0:—:—] 10-0 || Scud and cirro-stratus ; the wind changed shortly be- 10 228 || 53-4) 50-7) 2-7)| 2-3) 1-5] 0 ||31:—:—J| 9.5 || Scud; clearing to NW. [fore 7». 18 29-368 51-0) 46-2 4:8 1-7) 0-1} 28 || 27:—:—J 7-5 || Scud and loose cirro-strati; scud lying on Cheviot. 20 399 || 53-5) 47.4 6-1 0-8| 0-7| 31 ||30:—:—J| 2.0 || Loose seud; cumulo-strati and cirro-strati on horizon. @ ’ a a aaa the oa is Ae 31 || 28:—:—] 6-5 || Loose cumuli, cirro-cumuli, and cirro-strati. (>) : p ¢ : -4| 28 || 28:—:—! 8.0 || Scud and cumuli. 2 478 |) 61-1) 52-1/ 9-0/| 0.4] 0-1) 23 |/30:—:—J, 9.5 || Scud, cumuli, and cirro-strati. 4 a2 62-1} 52-8] 9.3]/ 0-3) 0-1) 0 |/25:—:—] 8.0 || As before; cumulo-strati ; electric-looking to N. (C) 6 512 | 58-0 52-9) 5-1/ 0-1) 0-1] 0 }24:—:—]| 9.5 | Thick dark scud & loose cum., having an internal motion ; 8 521 57-2 53-6 3-6 || 0-3) 0-0] 22 | 3-0 | Scud and cumuli, {0} (slight shower. 10 548 |) 53-2] 50-2) 3-0} 0-1] 0-0} 24 | 9-0 || Scud and cirro-strati. 18 || 29-576 |) 50-7 48-9| 18] 0-1) 0-0) 4 10-0 |! Cir.-str. seud; dense cir.-str,; white strati on Cheviot. a 587 || 54-9 ole 3-6 || 0-3) 0-2] 3 ||12:—:—J| 10-0 || Scud; cirro-strati; dense mass of black clouds to SW. 9 2 599 || 54-2) 51-2] 3-0}) 0-4] 0-3} 4 |}12:—:—] 10.0 || Thick scud and cumuli; cirro-strati ; slight shower. 0 590 || 58-4) 53-0} 5-411 0-5] 0-5! 6 116: 12:—| 10.0 || Scud; cirro-stratus. July 54. Between 3 and 45 the sky became covered with cirro-stratus and cirrous haze; about 64, ve i i i i ; i D fi 5 » very thick electric scud and loose cumuli came up from nD wae ae eae wand ; from 6» till about 74 30™, there was a great deal of thunder and lightning, the intervals between the flashes and the arts 45 a ng =i sei es ee Oa storm seemed to have passed off to eastward; about 75 15™, a loud peal was heard to SW., the interval being 118; at ob ', a bril sant jh, fo) lowed in 28 by a deafening report resembling a rapid succession of discharges of artillery; no loud thunder was heard after this; ', Sky covered with dense cirro-stratus, uniform to E. and NE., occasional flashes of lightning there; loose white strati creeping over Cheviot. There was continuous rain from 6! till 8h, and at night after 10h, July 64 4b, 2-023 in. of rain fell in less than 24 hours. 384 Daity METEOROLOGICAL OBSERVATIONS, JuLY 8—14, 1846. THERMOMETERS. | WIND. Clouds Ee oe Maca Se.: Os. : OL, Sky Species of Clouds and Met logical Ri ki Time. || at 32°. | Dry. | Wet. | Diff.) force in [Prom ee sieneed. ‘ S i : eae | 1.) 10™. dh in. 2 2 > | lbs. | lbs 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] 4 113: —:—]| 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 IGE drops of rain, 10 579 || 51-9| 51-2| 0-7|| 0-2| 0-1) 4 ||12:—:—]| 10-0 || Thick seud ; rain!—2 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”? 22 549 || 54.0| 53-0| 1-0|} 0-5] 0-5] 4 |) 5:—:—]| 10-0 || Scud; 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. [of scud to N.@ 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. ; patches 20 651 || 58-0] 56-2| 1-8] 0-0| 0-0} 16 || 4:—:—| 10-0 Seud ; cirro-cumulo-strati and cirro-strati above. 24 665 || 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 cir.© 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. (0) 2 680 || 64-8! 58-0] 6-8 || 0-1} 0-1} 26 || 28:28:—}| 8.0 || Seud, 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 |T8-4 || 0-5) 0-3] 26 5-0 || Loose cumuli, cirro-strati, and cirrous haze. (0) 8 716 || 59-0| 53-6 Ie 0-7| 0-5} 26 || —:—:30]) 3-0 || Cirri and cirrous haze. fo) 10 744 || 54-2) 51-4| 2-8]) 0-5| 0-1] 20 3-0 Id. ; 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 cirri. 20 805 | 56-0| 51-7| 4-3|| 0-6| 0-4] 21 || —:29:—}| 9-5 || Cirro-stratous scud and cirro-stratus ; linear cirri. 22 308 | 59-3| 52:7| 6-6|| 1-3| 0-9} 25 || 26:—:—}| 10-0 || Scud and loose eumuli; cirro-strati and cirrous haze. 11 0 308 || 59-9| 54-1] 5-8|| 1-2] 0-4| 24 || 24:—:—|| 10-0 || Thick cirro-stratous scud. 2 g12 | 62-0! 54-7| 7-3|| 0-9] 0-7] 24 |26:—:—|| 9-9 || Thick send; cirrous haze; portion of a solar halo. © a 817 || 61-7| 54-9] 6-8]] 1-5] 0-7} 24 || 26:—:—]| 10-0 Id. ; 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| 5.4}) 0-4) 0-3 20 || —:26:—]| 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. 231) 29-681 || 58-2} 56-0] 2-2)) 3-1) 1-4) 19 |) 22:—:— 10-0 || Send, cirro-stratus and cirrous haze, 4 {on Cheviot. © 12 18 | 29-737 | 61-9| 59-3 |+2-6|| 2-5] 0-1) 22 ||—:24:24|| 5.0 | Cir-cum.-str.; woolly cir. ; cir.-str. and scud ; seud lying 20 751 || 67-3| 63-4| 3-9] 0-1] 0-0| Sv.|—:24:—|| 9-5 || Cirro-stratous scud and cirro-cumulo-strati. 22 757 || 64-4| 61-0 |{3-4]) 0-5] 0-5) 18 | 24:—:— 10-0 || Send; cirro-strati. 13 0 749 || 68-8| 64-1| 4-7] 0-6] 0-4| 19 || 22:—-:—| 10-0 Id. ; id. 2 736 || 69-2| 64-4| 4-8] 0-8] 0-6| 19 | 22:—:—|| 10-0 Id. ; id. ; cirro-cumuli. 4 705 || 69-3| 64-7| 4-6|| 0-8| 0-6] 18 | 22:—:—] 9-9 jks id. 6 677 || 67-6| 63-4| 4-2]) 0-9] 0-5) 20 | 20:22:—| 9-5 Id.; id. ; 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:—:—|| 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 |12-2|| 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:—|| 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 tat: masses of cumuli. © 2 467 || 72-0| 62-2} 9-8|) 0-2| 0-0) 8 || —:18:—] 7-0 fds; id. 4 460 || 68-8! 63-3] 5-5|| 0-3| 0-3) 4 |} —:21:— 9.0 || Cirro-cumulo-strati ; cumuli and haze round horizon. 6 461 || 65-3) 60-5) 4-8] 0-5} 0-1 2 ||—:20:—|| 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:—:—|| 10-0 || Scud; cirro-strati and cirri. 18 | 29-534 || 57-7) 56-0) 1-7] 0-4] 0-2) 23 || —: 24:— | 6-0 | Cirro-cumulo-strati and cirro-strati; woolly cirri. 20 557 || 61-1| 57-4| 3-7|| 0-5| 0-3| 22 |24:—:—|| 9-9 | Scud; 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, 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. _—— — er DaAILy METEOROLOGICAL OBSERVATIONS, JULY 14—21, 1846. 385 THERMOMETERS. WIND. Sky Maximum slowded Species of Clouds and Meteorological Remarks. Wet. iff. || force in Seud and cumuli. Seud ; cirro-strati; drizzling shower at 234. Id.; cirro-cumulo-strati. cirro-strati. Send ; dense mass of cirro-stratus. 5 id. 5 id. 3 cirro-stratus and cirrous haze. nS id. ; id. @ . id. id. ; cirro-cumuli. Scud and cirro-strati. Seud ; cirro-strati; rain? Id. : ad. rain! Seud and loose cumuli; cirro-cumulo-strati. 8 Seud and cirro-stratus. Thick scud ; heavy shower at 1 30™, Id. ; wavy cirro-strati; showers occasionally. Scud, loose cum., and cir.-str. ; rather electric-looking. Id. id. ; showers occasionally. Scud and cirro-cumulo-strati. Cirro-stratous scud ; woolly cirri and cir.-str. [halo.@ Cir.-cum.-str. ; woolly cir. and cir.-str.; portion of a solar Seud ; dense homogeneous cirro-stratus ; rain”® Td. ; des id. Scud and dense homogeneous cir.-str. ; continuous rain!— Id. Id. Two currents of scud; drizzling rain”? Scud. Cumuli, scud, and sheets of cirri. Seud ; cumuli and cirro-strati. Scud and cumuli; cumulo-strati on horizon. Id. ; sheets of cirro-strati and cirri. Id. ; cirro-cumuli. Id. ; id. Id. ; cirri. > 2 Id. id. Id. cirro-strati and cirrous haze. Id. ; id. Cirro--stratous scud and cirro-stratus ; rain”? Id. [rain?? Seud ; dense uniform mass of clouds above; drizzling Id.; cir.-str. ; heavy rain at intervals since last obser- Td. ; id. ; id. [vation. Scud and cirro-cumulo-strati ; cum.-str. and cirro-strati. Scud, loose cumuli and cirro-cumulo-strati. | : Scud; cirro-strati; rain occasionally. 57-6) 56-6} 1- . Scud and cirro-stratus; rain”? 54:5! 50-6/T3- 2-11 1- - 128 | . Patches of seud ; woolly cirri; cirro-strati. (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. 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. 1846. SE 386 Dairy METEOROLOGICAL OBSERVATIONS, JULY 21—28, 1846. | THERMOMETERS. WIND. : Fe Clouds Gott. Baro- Ne 3 y Mean || wETER Maximum Se. C.-s.: Ci., Fatt hares AO as ath ie ; Time. || at 32°. Dry. | Wet. | Diff. force in |pyom ac clouded. pecies of Clouds an eteorological Remarks. | Seud and cirro-cumulo-strati; woolly cirri. Seud and loose cumuli. FE cumulo-strati on horizon. | Send, loose cum., cir.-str., and cir. haze ; solar halo at 5 | Thick cirro-stratus and seud. Id. ; rain? Send ; wavy cirro-strati. | Cirro-stratous seud and cirro-strati. | Seud; dense cirro-stratus. ) debe slight drizzle. cirri and cirro-cumuli. cirro-strati and cirrous haze. hoSPpwnwmwer - oO 327 29-410 ; woolly cir. ; cum. on hor. ; portion of a halo. woolly cirri and cirro-stratus. thick cirro-stratus and cirrous haze. Send and eumuli; woolly cirri to W. | Patches of scud ; woolly cirri and cirro-strati. | Woolly cirri; seud and cumuli on horizon. | Masses of scud and cumuli; tufts of cirri. Patches of seud ; cirro-strati on horizon. Cirro-strati on horizon. CH wwwHNohn Woolly cir. ; cir.-str. ; patches of scud on S. horizon. © | Scud and eumuli; woolly cirri and cirro-strati. (0) | Cumuli. 10) | Seud and cumuli; occasional slight showers. (0) | id. ro) oe woolly cirri and cirro-strati. (0) | OHH OHOSO COPENH HEH SOO HPN HEH NENH SOS . id. © [the S. of the sun. Cir.-str. and woolly cir. : cum. on 8. hor. ; parhelion to | Seud; cir.-str.; cir. haze ; cum. on 8. hor.; drops of rain. 1 7 2 9 “O | oo) “9 SO CHEE EES Ser YN E Ey wwe BaAONWAIOYHHY QHHEHUNGTAWD | Cumuli; linear cirri. | Seud ; light drizzling rain. | Id.; cir.-cum. and cir.-str.; rain occasionally since 18". | Id.; cirro-stratus. Cirro-stratous scud and cirro-strati. | Scud moving quickly; cir.-strati with mottled edges to W.; Cheviot Seud; cirro-strati and cirri. {eovered with mist ; drops of rain.@ Seud ; woolly and mottled cirri; cirro-strati. (Ss) | Misty seud ; cirro-strati. (2) fas cirro-cumulo-strati ; cirro-strati. | Seud, Id.; slight drizzling rain. Id. ; cirro-strati. Id.; cumulo-strati on E. horizon. Id.; thick woolly cirri; cum.-str. on hor, ; portion of Id.; cirro-strati. [a halo. | Id.; cirro-stratus. | Cirro-stratous scud and cirro-strati ; woolly cirri. | Seud and cirro-strati. 62-7 | 60-2 CSP a mero oo Ess Bis o> peek dowphaH OS WOMHTWAIWH wSorAdhOLaG wb | 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, Whe motions of the three strata of clouds, Se. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. ee DaAiLty METEOROLOGICAL OBSERVATIONS, JULY 28—Avucust 4, 1846. 387 THERMOMETERS. WIND. Bano- a i . Se.: C.-s.: Ci. Sk METER Maximum ; i y Species of Clouds and Meteorological R ks. at 32°. || Dry. | Wet. | Dit on From ee clouded. P eteorological Remarks in. Prints © Tbs. | lbs. | pt. pt. pt. pt. 0—10. r 29-848 || 61-1) 59-7) 1-4] 0-1] 0-0} 24 ||} 19:—:—]] 10-0 || Seud. 874 || 57-5) 55-6) 1-9]| 0-2} 0-0} 31 10-0 Id. 886 || 63-4] 59-4) 4-0|| 0-0} 0-0) 4 || 20:—:—|! 10-0 |] Scud and cirro-stratus. 891 || 61-5) 59-6} 1-9) 0-0) 0-0) 4 |) 20:—:—|! 10.0 Id. ; rain” 905 || 61:3] 59-7} 1-6|| 0-2) 0-2) 4 || 4:—:—|! 10.0 |] Cirro-stratous scud. @ 904 || 59-1] 57-8} 1:3) 0-3) 0-3) 3 | 5:—:—|| 10.0 || Seud; rain? 901 || 56-6] 55-8} 0-8|/ 0-3] 0-2) 4 10-0 || Nearly homogeneous. 896 || 56-0| 55-6) 0-4) 0-3} 0-2) 4 |) 5:—:—|! 10-0 || Scud; rain?+ 907 || 55-6| 55-2] 0-4 || 0-3] 0-1] 4 10-0 Id.; rain®> 29.900 || 57-3] 57-1] 0-2|| 0.4] 0-1) 4 10-0 || Rain? ; mist. 905 || 59-3| 59-0} 0-3) 0-5) 0-1) 4 10-0 || Rain®*; id.; no rain fell after 20%. 917 || 62-2) 61-3} 0-9) 0-2) 0-1] 7 10-0 || Homogeneous mass. 942 || 62-9] 62-0| 0-9) 0.2| 0-2) 3 10-0 Id. ; misty, objects invisible at 3 miles. 952 || 67-2) 64-7) 2-5|| 0-2) 0-2) 6 | 3:—:—]] 10-0 || Scud; misty on horizon. 947 || 68-2} 65-1] 3-1] 0-8} 0-8] 2 || 6:—:—l| 7.0 Id. ; cirri. (s) 954 |) 64-4) 62-3 |f2-1]| 0.6) 0-4) 6 || 7: 9:—|| 5-0 |] Misty scud; cum. and cir.-cum.-str. : woolly cirri; very 972 || 61-6| 60-6 /{1-0|| 0-7| 0-5| 6 10-0 || Dense mass of cirro-stratus. [hazy on E. hor.© 986 || 60-2] 59-7| 0-5|| 0-4) 0-2) 6 10-0 Id. 29-963 || 58-3] 57-9] 0-4]| 0-2) 0-2) 6 10-0 || Scotch mist ; objects invisible at 3 of a mile. 971 || 58-8} 58-0| 0-8] 0-2} 0-1] 6 10-0 Id. ; id. 958 || 61-2] 59-6) 1-6} 0-2) 0-1) 2 | 6:—:—|| 10-0 || Misty scud. 937 || 65-2) 62-2) 3-0} 0-2 0-2) 8 || 5:—:—|| 5.5 || Scud and loose cum.; woolly cirri; very hazy on hor.© 917 || 63-9} 61-4) 2-5] 0-7] 0-4) 5 9-9 |) Seud and cirro-stratus ; hazy on horizon. 882 || 62-4} 60-1] 2-3] 0-9] 0-5| 7 5:—:i— 9-8 || Misty seud. 871 || 61-2} 59-2} 2-0] 0-4) 0-4) 2 || 5:—:—]| 10.0 |] Scud; cirro-stratus. 864 | 58-3] 57-8] 0-5] 0-4} 0-3] 4 10-0 || Misty scud; misty, objects invisible at 2 miles. 855 || 56-7| 56-6| 0-1] 0.3] 0-1) 4 10-0 || Very misty, objects invisible at 1 mile. 29-779 || 58-7) 58-5} 0-2]/ 0-2) 0-0| 3 10-0 || Mist, objects invisible at 500 yards. 774 || 62-0} 60-5) 1-5] 0-3) 0-1) 3) 5:—:—]| 9-5 || Scud; mist cleared off. 746 || 64-7| 62-4] 2-3] 0-2) 0-1) 6] 5:—:—I| 2.5 Id.; cumuli and haze on E. horizon. 0) 728 || 70-0| 64-4] 5-6]] 0-4] 0-3! 8 0-5 || Sheets of cirro-strati to S. (0) 707 || 70-6| 64-4) 6-2} 0-6) 0-2} 6 ||—:10:—|| 6-0 || Cirro-cumulo-strati and cirro-strati. (s) 667 || 70-0} 64-8} 5-2]| 3-0) 0-4) 2 0-5 || Cumulo-strati and haze on E. and S. horizon. (0) 646 || 68-2] 64-9|f3-3]1 0-8] 0-3} 5 |—: 8:—|| 4-5 |) Cirro-cumulo-strati ; cirro-strati and haze. (0) 657 || 63-4} 62-3 |{1-1]) 0-5] 0-3] 5 10-0 || Misty scud ; mist coming on. 676 || 61-6| 61-4/ 0-2}| 0-4/ 0-2) 4 10-0 || Very misty, objects invisible at } of a mile. 29-641 || 64-2) 62-6] 1-6] 0.3/ 0-1) 2 || 6:—:—]] 10-0 || Thick fogey clouds. 29-630 || 62-3] 62-0] 0.3|/ 0-5] 0-0] 4 10-0 |) Fog, objects invisible at 500 yards. oe ie ; oe A 4 ‘i 1} 0-0; 4 10-0 || id., id. ; slight drizzling rain. 5 -2| 0-8]| 0-2] 0-1] 4 10-0 || Ia, id. 13 miles. 662 || 67-6| 65-2) 2-4|/ 0-1] 0-1) 6 10-0 || Id., id. 5 alan 663 71:8} 67-7| 4-1 0-1} 0-1} 3 |[14:10:—|| 4.5 || Scud and enmuli; woolly cirro-cumuli; hazy on hor.© 661 || 76-5} 66-7) 9-8] 0-3| 0-4) 8y.]13:—:—}| 5-0 || Cumuli; woolly cirri; cumuli and haze on horizon. © 666 || 74-3 |f61-7 |12-6 || 0-3) 0-2) 12 2-0 || Woolly cir.; cum.-str. on S. hor.; cir.-str. and haze on 676 || 68-6 162-8} 5-8|/ 0-3) 0-1} 11 1:5 || Woolly cirri and cirro-strati. © [hor. © 709 || 62-8} 60-4} 2-4] 0.1) 0-1} oO 0-7 || Woolly cirro-cumuli, cirri, and cirro-strati. ») “ne ce oe on ee 0:0) 4 10-0 || Fog, trees invisible at } of a mile. z K Hl 2) 0-2) 4] 7:—:—Tl] 9-5 || Seud. 734 || 65-8 62-1 3-7 | 0-2) 0-2) 4 |) 9:—:—|| 25 || Id.; cumuli and cirro-strati. (0) 724 || 69-8 63-8} 6-0} 0-3) 0-2} 6 |10:13:—|| 6-5 || Two currents of cumuli; woolly cirri and cirro-strati.O 723 || 71-1| 62-5 8-6 0:5) 0-3) 8 |}11:—:—|| 7-5 | Loose cumuli; woolly cirri; cirro-strati. 717 || 71-6) 63-5} 8-1 || 0-3) 0-2} 4 ||10:14:—|| 7-5 || Scud; loose cumuli; cirro-cumuli. 710 || 67-8] 61-0| 6-8] 0-2} 0-2) 12 | 8:16:—]| 8.0 || Ia; id. ; woolly cirri. 721 |) 66-0! 60-4] 5-6|] 0-2] 0-1] 10 |112:—-:—|] 7-0 || Scud and cumuli; id. 8 July 294 114, mile; heavy rain all night, sometimes excessively hea, July 294 20%, July 304 18h, EE EEEE>EE— TT TEEE—e—EEeEeEEeeeEOEOEeEeEeEeEeEeEeEeeeEeE—=E—E—=~—~~———E——————EeEeEeee Severe thunder-storm from 11° till 13h, the lightning chiefly sheet, and the nearest distance of the thunder about half-a- vy: 3:063 in. of rain fell in about 19 hours. Observation made at 185 15m, 388 DaIty METEOROLOGICAL OBSERVATIONS, AuGusT 4—11]1, 1846. | THERMOMETERS. WIND. Cloud ea | eae rae Se.: Cus: 0h, Sky ee | ame lene ee — o, moving "ll eleuded Species of Clouds and Meteorological Remarks. | 14, |10™, as Gs) 2 | in. ) i 3 Ibs. | lbs. pt. || pt. pt. pt 0—10. 410 {| 29-738 || 61-3] 59-8) 1-5 || 0-2} 0-1] 4 7-0 || Scud and cirro-cumulo-strati. »)) 18 | 29.737 || 58-3] 57-8] 0-5|| 0-1| 0-0} 1 10-0 || Homogeneous ; misty. 20 | 747 || 60-0} 59-2| 0-8|| 0-0} 0-0 10-0 Id. ; id. 22 741 || 64-0} 61-0| 3-0]| 0-1] 0-1] 4 | 6:12:— 9.5 || Loose seud and cumuli; cirro-cumulo-strati. ay {Oy 741 || 69:0| 63-6| 5-4|/ 0-1] 0-1] 8 || 16:—:—J|| 9-9 || Seud; loose cumuli; cirro-strati. [rain 2 731 || 64-0) 62-5} 1-5}| 0-1) 0-1) 4 | 10-0 || Cir.-str. seud ; cum. ; several peals of thunder since 0" ; 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 || Ia.; 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. oO 20 || 762 | 59-0) 57-8) 1-2}) 0-0) 0.0) 20 | 0-5 || Patches of cirro-strati; fog on horizon. (0) 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} 0-1} 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 dis adn id. fo) 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 |f5-3 || 0-2) 0.2) 3 3-0 Id. ; eumuli and fog on horizon. (0) 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. ») 18 || 29-642 || 58-1] 57-4] 9-7]| 0-2} 0-1! 4 | 6:—:—|| 10.0 || Misty scud. 20 647 || 62-4| 60-4| 2-0|| 0-1} 0-1} 3 | 6:—:—|| 9-9 || Scud; patches of cirri and cirro-cumuli. 22 635 || 60-8] 60-3] 0-5|| 0-0} 0.0/ 4 | 5:—:—1]) 10-0 || Scud; rain?~*; distant thunder to E.; frequent heavy 7 0 620 || 63-0] 62-0] 1-0]] 0-3] 0-6| 4 | 5:—:—J]) 10-0 || Scud. [showers since 204, 2 589 || 63-3] 62-1] 1-2|| 0-9] 0.4] 8 |—: 5:—|| 10-0 || Cirro-stratous scud. (then, distance about a mile. 4 592 || 63-1] 63-0} 0-1]| 0-8| 0-3 2 10-0 Very thick and dark ; rain‘? commenced at 3" 54™ ; a peal of thunder 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 3 of a mile ; rain! 10 515 || 62-8} 62-6] 0.2] 0-5/ 0.3| 6 10-0 l{ oreizaer heard sinceoh; there wae tinder occasionally throughout the iay. 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. 2 418 || 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] 0-1} 30 | 18:—:— 8-0 Scud and loose cumuli; cir.-str.; occasional thunder to NE. and S.Q 6 404 || 71-2| 67-2] 4-0]|/ 0-1] 0-1) 4 ||—:18:— 8-5 || Cir.-cum.-str.; cum. round hor.; thunder to NE. 9 8 404 || 65-6] 63-4| 2-2]/ 0-1] 0-1) 18 | 4.0 Id. ; cumuli and fog on horizon. 10 423 || 61-8] 61-2] 0-6]| 0-1] 0-1} 18 be FB Id. ; cirro-strati and fog. 223|| 29.508 || 67-3| 62-3] 5-0]) 0-5| 0-3) 20 ||20:—:—]| 9-0 || Scud and loose eumuli ; cirro-cumulo-strati and cir.-str. 918 || 29-648 |} 55-0} 54-5] 0-5|| 1-3] 0-1) 20 lo9:—:—|] 3-5 || Scud, loose cumuli, cirro-strati, cir.cum., and cirri. © 20 653 || 58-1] 55-7] 2-4|| 0-5] 0-3] 20 |20:—:—] 3-0 || Id., id., cirri. 8 22 645 || 63-2| 58-2| 5-0]} 1-5] 0-7| 21 ||20:—:—| 3.0 || Id., id., id. 10} 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 || Seud and loose eumuli; woolly cirri and cirro-strati. © 4 628 || 64.6] 59-8] 4.8] 1-9] 1.0] 19 |} 18:—:—] 80 Id.; id. 6 605 || 63-2] 58-6] 4-6]) 1-1] 0-6] 18 |18:—:—| 9-5 Td. ; id. 8 602 || 58-8| 56-2| 2-6|| 0-7] 0-2] 19 }19:18:—] 6-0 || Scud; wool. circum. ; cir.-str. ; drizzling rain since 6", 10 605 || 55-2] 53-5| 1-7|| 0-5| 0-2] 20 | | 0-2 || Cir.-str. onhor.; two flashes of lightning to SE.since 95. }- 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 Id. ; id. 11 0 611 || 62-0! 57-4! 4-6|| 2-1] 1-3! 20°]21:—:—! 9-8 Id.; cirro-strati and cirro-cumulo-strati. Aug. 64 184, Observation made at 18h 6™, Aug. 64 204, The tops of cumuli seen occasionally to S. beyond the seud; several peals of dis gradually came nearer till 215 when its distance was about 1} miles, it then passed off towards NE. rain?—% afterwards. Aug. 84 0b, From 04 20™ frequent distant thunder was heard to the S. and SW.; about 15 15™, it had approached nearer, when the thunder followed the 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 58 to 88; at 1" 35™, the rain began to fall in spoonfuls, and when it ceased at 15 55™ it was found that 0°590 inch had fallen in 20™, The storm moved off to NE., with occasional peals of thunder afterwards. 2h 0™, Thick black mass to N., with loose detached patches below. tant thunder heard to SSW. since 19" 45™, The thunder ; nearly continuous heavy rain from 20b 25m till 21515™; ~_ Dartty METEOROLOGICAL OBSERVATIONS, AucustT 11—17, 1846. 389 THERMOMETERS. WIND. Gott. BaRo- Mean || METER Maximum Time. |} at 32°. Dry. | Wet. | Diff. force in /From 14, | 10™, a. oh 0 iz S Ibs. | Ibs. pt. 11 2 || 29-620 || 61-5} 56-6] 4-9} 2-4] 1-3} 20 4 636 || 62-5| 57-0 5-5 || 2-2} 1-7] 20 6 648 || 61-4} 56-7| 4-7]| 2.6} 0-9} 20 8 655 || 58-2} 55-1] 3-1]| 1.3) 0-4] 19 10 691 || 57-4] 54-8] 2-6]| 0-7] 0-2} 20 18 || 29-754 || 55-0| 52-6| 2.4]) 0-5} 0-2] 18 20 777 || 58-2} 54-8] 3.4]| 0-2] 0-1] 20 22 789 || 60-7] 55-7} 5-0|| 0-4] 0-1} 22 12 0 781 || 62-3) 57-5| 4-8]| 0-3) 0-3) 22 2 785 || 63-7) 58-2] 5-5|| 0-6| 0-1) 21 4 762 || 64-2| 57-1] 7-1|| 0-6} 0-6) 21 6 755 || 64-6] 56-2) 8-4]| 0-8] 0.2) 22 8 732 || 59-2) 55-8} 3-4]! 0-3| 0-1] 22 10 697 || 56-8} 54-2) 2-6]| 0-3} 0-1 8 18 || 29-358 || 57-6] 56-8] 0-8]| 0-3] 0-2} 18 20 299 || 60-7} 59-2] 1-5]| 1-7] 0-6] 17 22 226 || 65-7| 62-8} 2-9] 1-2) 2-1| 16 13 0 172 || 61-0} 60-7 | 0-3}| 2-2) 0-8] 16 2 118 || 64-3) 62-8} 1-5]! 0-5} 0-1) 18 4 157 || 66-0) 61-1} 4-9]| 1-1] 0-3) 21 6 215 || 63-2} 57-8] 5-4} 1-1] 1-3] 30 8 331 || 59-4] 54-7] 4-7]| 1-8} 0-6] 30 10 415 || 56-2| 52-8] 3-4]} 1-6] 0-2] 29 18 || 29-589 || 46-7| 45-0 |T1-7 || 0-5} 0-2] 22 20 614 || 52-9} 50-0 |12-9 || 0-2) 0-2} 22 22 617 || 57-8} 51-4] 6-4]| 0-2} 0-3} 23 14 0 642 || 62-3] 55-5| 6-8]/ 0-2] 0-2] 22 2 650 || 65-9| 57-8} 8-1]| 0-4) 0-3} 18 4 649 || 63-8) 56-7] 7-1]| 0-9] 0-1} 18 6 640 || 62-6| 56-0} 6-6]) 0-4] 0-1] 18 8 652 || 58-3} 54-0} 4-3]] 0-1] 0-1) 18 10 619 || 53-0} 51-0} 2-0]) 0-1} 0-1) 30 18 || 29-504 || 53-6| 52-9} 0-7|| 0-0} 0-0] 30 20 461 || 57-0| 55-3] 1-7] 0-3) 0-2} 12 22 426 || 62-0) 58-6} 3-4] 0-5] 0-3} 15 15 0 401 || 64-2} 60-2} 4-0]| 0-8] 1-1] 18 2 374 || 62-4] 60-7} 1-7]| 0-8] 0-2} 17 4 357 || 62-2} 60-2} 2-0] 0-3] 0-2] 16 6 337 || 58-4} 57-0] 1-4] 0-5] 0-1] 17 8 339 || 56-9] 55-1] 1-8] 0-3} 0-3} 20 10 349 |) 54-5] 53-2] 1-3]] 0-2} 0.2} 22 223) 29-425 || 62-4} 57-6] 4-8]| 1-4] 0-7] 20 1618 || 29-514 || 56-4} 55-0] 1-4]| 1-6] 0-1] 18 20 523 || 60-4] 58-3! 2-1]] 0-1] 0-1] 17 22 520 || 64-0} 60-1] 3-9]! 0-4] 0-3} 20 17 0 510 || 65-6} 59-6} 6-0] 0-7] 0-8) 16 2 508 || 61-8} 57-8} 4-0]| 0-8] 0-1) 20 4 489 || 62-6| 59-9| 2-7]| 0-4] 0.2) 17 6 463 || 63-8] 60-3] 3-5] 0-2| 0-1 8 8 456 || 61-0) 58-7) 2-3]! 0-1] 0-1} 12 10 446 || 58-0} 56-2| 1-8]| 0-1] 0-1 8 18 || 29-316 | 56-0} 55-5! 0-5]! 0-4] 0-4] 3 20 305 || 57-0} 55-6} 1-4] 0-4] 0.2) 6 22 295 || 58-0! 57-2! 0-8] 0-5! 0-4] 7 Clouds, Se.: C.-s: Ci, moving from 12:—:— 12:—:— 12:—:— Sky clouded. Species of Clouds and Meteorological Remarks. Scud ; cirro-strati and cirro-cumulo-strati. Id.; cirro-cumulo-strati; sheets of cir.-str. on hor. Id.; cirro-strati. [s) Id. ; id. Id. Scud and cirro-cumulo-strati. (0) Seud. Td. Cirro-stratous scud ; cumuli on N. horizon. Id. Scud ; loose cumuli; cirro-cumuli. Cirro-strati ; woolly and mottled cirri. 8 Cirro-stratous scud and cirro-strati. Td. Scud ; cirro-strati; rain”? Id. ; id. ; rain! Td. ; id. e Id.; rain® Id. ; dense cirro-stratus ; rain?—* Scud and loose cumuli; woolly cirri. Cirro-cumulo-strati; cumulo-strati to SE. ; cir.-str. Cirro-stratous scud 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 cumuli; woolly cirro-cumuli and cumulo-strati.@ Id. ; cirri and cirro-strati. Cir.-str. seud ; woolly and mottled cirri; cir.-str. (0) Cirro-cumulo-strati ; woolly cirri and sheets of cir.-str. (oXo) Send 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. Seud 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 34. Id. ; id. ; id. ; drops of rain, Cirro-cumulo-strati ; cirro-strati and cumulli. Scud and cirro-strati. Scud ; mass of cirro-strati. Id. ; id. Id. ; id. ; rain 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 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, oBs., 1846. 390 Dairy METEOROLOGICAL OBSERVATIONS, AUGUST 18—24, 1846. THERMOMETERS. WIND. ts ||) Rabo [eee ia oe. Sky Mean || METER aximum bo eee SDs Species of Clouds and Meteorological Remarks. Time. | st 82°. | Dey. | Wet. | Dig. free i> | From mating: | oni d. h in. % s o lbs. | Ibs, pt pt. pt. pt. 0—10. 18 0 || 29-274 || 58-8] 58-4) 0-4]| 0-4) 0-1] 6 |) 11:—:—|| 10-0 || Scud; mass of cirro-strati; rain? 2 265 || 63-6] 61-0| 2-6|| 0-2) 0-1} 4 /11:—:—] 9-5 Id. ; loose cumuli; cirro-cumulo-strati. © 4 261 || 66-7] 61-4| 5-3 |] 0-1] 0-1} 11 ||} 14:—:—]] 5-0 || Loose cumuli. 6 273 || 62-6) 59-5| 3-1]} 0-1] 0-1) 18 || 14:—:— 7-5 || Electric clouds to S. and W.; cumuli; woolly cirri. 8 307 || 56-2] 55-0} 1-2|| 0-2] 0-0] 10 |} 10:—:14 5-0 || Seud; cirri. 10 339 || 55-8| 55-6/ 0-2] 0-1) 0-1) 2 10-0 || Overcast ; slight fog. 18 || 29-406 || 52-0| 51-6) 0-4)! 0-2} 0-0) 14 10-0 || Fog, rendering trees invisible at 4 of a mile. 20 439 || 53-0] 52-5} 0-5 || 0-1) 0-0] 24 ||}22: 6:—|| 8-5 || Loose foggy scud clearing off; scud and woolly cir.-str. 22 456 || 62-8] 60-3 2-5|| 0-1) O-L| 6 || 3: O0:—) 8-5 || Misty seud; loose cumuli; woolly cirri. 19 0 468 || 64-0] 58-8| 5-2]/ 0-3) 0-4) 2 |) 2:—-:—|| 8-5 || Seud and loose cumuli; large piles of cumuli to W. 2 478 || 65-0} 59-2| 5-8] 0-5) 0-2) 4 ||31:—:—|] 3-5 || Loose cumuli. © 4 483 || 65-4] 59-0} 6-4]] 0-4] 0-2) 2 1: b - 420. Id. (0) 6 503 || 64-0) 59-0} 5-0]/ 0-2} 0-1 7 1-5 || Cum., cum.-str., cirri, and cirrous haze round horizon. © 8 512 || 59-2] 57-9] 1-3]} 0-1] 0-1] 31 0-2 || Stratus and haze round horizon. 10 536 || 54-8] 54-2) 0-6]| 0-1) 0-1} 18 7-5 || Send and cirro-strati ; misty. 18 || 29-514 || 52-8} 52-3} 0-5|| 0-1} 0-0} 20 || —:30:— || 9.8 || Cirro-cumulo-strati and cirro-strati. 20 512 || 57-0} 55-3| 1-7] 0-2] 0-2| 20 || 24:30:—|| 10-0 || A few patches of seud ; cir.-str., cir.-cum., and cir. haze, 22 509 || 59-7| 56-0| 3-7 || 0-5| 0-4) 22 10-0 Id. ; dense mass of cirro-stratus. 20 0 498 || 59-6] 57-8| 1-8]| 0-4] 0-1) 18 |} 18:—:—]] 10.0 || Loose seud ; dense mass of cir.-str. ; rain!” since last 2 481 || 60:6] 58-8] 1-8 || 0-4) 0-3} 20 |} 20:—:—]| 10.0 || Scud; rain! [observation. 4 460 || 62-1} 60-0} 2-1}! 0-2] 0-1] 17 ||21:—:—|} 10-0 || Id.; cirro-strati. 6 457 || 60-8| 58-6| 2-2}| 0-2| 0-1} 21 || 21:—-:—|| 9.9 Tass id. 8 471 |} 59-6} 58-0] 1-6]| 0-1} 9-1) 22 | 24:—:—J] 10-0 Id.; cirro-stratus. 10 488 || 58-3] 57-5} 0-8|| 0-1} 0-1} 19 10-0 der id. 18 || 29-564 || 59-0} 57-5 | 1:5]| 0-1] O-1| 24 2:—:—|] 10-0 || Scud; cirro-stratus. 20 621 || 60-1} 58-2} 1-9}| 0-5] 0-1] O || 2:—:—]) 10-0 Id. 22 671 || 60-0} 57-3} 2-7|| 0-5] 0-7} 1 2:—:—| 10-0 Id. ; id. 21 0 705, || 62-2} 58-0) 4-2]| 0-4) 0-3} 1 1: 1:—J| 9-9 || Seud and cirro-cumulo-strati; cirro-stratus. ) 2 733 || 65-0} 60-2| 4-8 }| 0-3] 0-1] 5] 0: 0:—] 9-9 Id. ; id. e 4 741 || 66-7} 61-6} 5-1 |) 0-1} 0-1] 18 || 14:30:—|| 7-0 || Seud and loose eumuli; loose cirro-cumulo-strati. © 6 755 || 66-7} 60-8| 5-9|| 0-1] 0-1] 1 |}——:30:—|| 9-0 || Cirro-cumulo-strati. 8 793 || 59-2] 57-0] 2-2|| 0-1] 0-1} 4 |}28:—-:—| 3-0 || Scud; woolly cirri. 10 815 || 58-0} 56-5} 1-5 || 0-1] 0-0 9-0 || Scud and cirro-strati. 18 || 29-819 || 54-0] 53-0| 1-0]] 0-1] 0-0) 20 |} —:26:—|| 6.0 | Cirro-cum.-strati. [from about WSW. an hour ago. 20 836 || 54-2| 53-2) 1-0|) 0-2) 0-1) 30 10-0 || Fog, trees are invisible at 400 yards. The fog came up 22 836 || 60-4) 57-6] 2-8|| 0-1| 0-1) 20 1-0 || Cumulo-strati; cumuli and haze round horizon. (0) 22 0 828 || 66-5| 62-2} 4-3]] 0-3] 0-2} 18 || 24:—:—|| 6.0 || Loose cumuli. (>) 2 827 || 67-8| 62-8} 5-0]| 0-7] 0-3} 18 || 21:—:— || 5-0 Id. e 4 819 || 69-4| 63-9) 5-5|| 0-5) 0-3| 20 | 29:—:—|} 2-5 || Send and loose cumuli; streaks of cirro-stratus. (0) 6 825 || 66-0| 62-0) 4:0 || 0-2| 0-1} 3 ||}29:24:—]| 4-5 || Loose cum.; cir.-cum.-str.; cirri rad. from SW by S.; 8 843 || 63-0] 60-0} 3-0|| 0-1) 0-1 4 ||—:29:—]| 10-0 || Cirro-stratous scud. [very hazy on hor.© 10 858 || 61-7| 60-0] 1-7 || 0-1] 0-1] 20 10-0 Id. 23 0 | 29-995 || 56-0} 55-7] 0-3|| 1-0) 0-4) 4 || 4:—:—J] 10-0 || Scud; drizzling rain. 18 | 30-051 || 50-3) 50-1} 0-2|} 0-6] 0-0) 18 }—:31:21] 8-0 || Cirro-cumulo-strati; woolly cirri. 8 20 067 || 55-2} 53-5} 1-7} 0-1} 0-1) 15 |} —:31:—] 9-8 Id. ; id. : loose seud on §S. hor. 22 065 || 59-2) 54-7) 4-5 |/ 0-1} 0-0), 8 | 2: 1:—|| 9-8 || Scud; cirro-cumulo-str. ; both currents moving slowly. 24 0 080 || 64-0) 57-7| 6-3)|| 0-2| 0-1] 16 || 4:30:—J 9-0 || Masses of eumuli; cirro-cumulo-strati. 8 2 081 || 63-:7| 57-1) 6-6|| 0-3) 0-1) 4 }—:31:—)] 10-0 Tak; id. 4 077 || 61-7| 55-5) 6-2|) 0-2) 0-2} 5 0: 28:— 5-0 Id. ; id, (0) 6 083 || 60-0| 54-2} 5-8 || 0-5] 0-3} 4 | 1-0 || Cumuli. 0} 8 095 || 55-7} 53-1] 2-6|| 0-3).0-3) 4 | 0-5 || Haze and cirro-strati on horizon. 10 || 117 || 47-3) 46-6] 0-7)) 0-1} 0-0) 20 | 0-0 || Very clear. 18 | 30-124 || 42-0} 41-7 |f0-3 || 0-1} 0-0| 16 | 0-1 || Streak of cloud on N. hor. ; mist in the valleys. {O) 20 132 || 48-8] 48-1 |0-7 0-1| 0-0} 20 1-5 | Cirri radiating from NW. ; cum. and haze on N. hor.© The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, BE. =8,8.=16, W.= 24. The motions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Aug. 185 65, Two or three peals of thunder since 5 from S. and SW. DatLty METEOROLOGICAL OBSERVATIONS, AUGUST 24—31, 1846. 391 THERMOMETERS, WIND. Baro- i Se.:C.-s.:Ci,|} Sk METER iat Maal Neper aa moving Caen | Species of Clouds and Meteorological Remarks. 14, | 107, in. ° ° © || 1bs. | Ibs. | pt. |] pt. pt. pt. |] 0-20. 30-123 || 56-9} 54-0) 2-9|| 0-1) 0-1} 19 1-0 || Detached masses of cumuli on hor. ; patches of cirri. © 121 || 65-0} 58-6} 6-4]| 0-2] 0-1) 20 | 30:—:—|| 8-0 || Seud and cumuli; cirrous haze. 101 || 65-9| 58-6] 7-3|| 0-1] 0-1] 12 ||30:28:28|| 9-5 Id. ; woolly cirri, cir..cum., and cir. haze; solar 091 || 65-4} 57-2} 8-2|| 0-1) 0-1] 12 |31:—:—j 9-9 || Scud; cirro-strati and cirri. tC ) [halo.@ 082 || 61-7| 57-0} 4-7|| 0-3| 0-1) 6 ||—:26:26|| 8-0 || Woolly cirri, cirro-cumuli, and cirro-strati. (>) 076 || 57-4] 55-1] 2-3|/ 0-2} 0-0) 2 2-5 || Cirro-strati and cirrous haze. 079 || 51-3] 50-0} 1-3|| 0-0) 0-0) 16 0-5 || Clouds and haze on horizon; stars rather dim. 30-040 || 44-8| 44-4] 0-4]| 0-1] 0-0) 17 |—: 0:— || 8-0 || Cirro-cumulo-strati ; very misty. e@ 047 || 49-7| 48-8] 0-9|| 0-1} 0-0} 6 ||—-: 2:—|| 3-0 Id. ; mist clearing off. 8 039 || 58-7| 55-8] 2-9}| 0-0) 0-0) 24 |}|—: 6:— 6-0 Id (0) 30-019 || 63-0} 58-0} 5-0|| 0-0) 0-0} 0 2-0 || Cumuli (0) 29-991 || 66-4| 58-8| 7-6|| 0-1) 0-1} 8 | 10:—:— 5-0 Id. (0) 965 || 67-2] 59-3) 7-9)|| 0-2] 0-2} 4] 9:—:—] 3-0 Id.; very hazy round horizon. 0) 951 || 65-3) 58-8) 6-5 || 0-4] 0-3] 10 0-5 tds id. oO 950 || 58-4| 55-7} 2-7) 0-2} 0-0] O 1-0 |) Cirro-strati and cirrous haze on horizon. 959 || 51-2) 50-6} 0-6|| 0-0} 0-0 0-5 || Haze on horizon, 29-920 || 43-7] 43-4| 0-3|| 0-1} 0-0} 17 8-0 || Woolly and mottled cirri; fog, objects invisible at 200 927 || 48-7| 48-2) 0-5|| 0-1] 0-0} 20 8-0 || As before. @ [yards. 921 || 55-6] 53-7] 1-9]! 0-0) 0-0] 30 || —: 8:— 7-0 || Cirro-cumuli. 907 || 61-2| 56-4] 4-8]| 0-1] 0-1] O 3-0 || Cum.; cir.-cum.; the motion of the clouds is scarcely 889 || 65-9} 57-0} 8-9} 0-2] 0-1} 16 4-0 Id., moving very slowly. oO [perceptible. © 870 || 65-6| 57-2} 8-4]! 0-3] 0.2] 20 |116:—:16|| 3.0 Id. ; woolly cirri. (0) 851 || 64-9} 59-5] 5-4] 0-4] 0-2} 12 | 20:20:— | 6.0 || Scud, cumuli, and cirro-cumulo-strati ; woolly cirri. © 865 || 61-6] 58-1] 3-5} 0-3] 0-1} 20 || —:20:—)|| 7-0 || Thick cirro-stratous seud. 882 || 59-3| 56-4] 2-9|| 0-2] 0-0] 20 8-0 || Scud. 29-908 |) 49-5} 48-8} 0-7|| 0-1] 0-1) 18 |} —:—:16]] 4-5 |) Woolly cirri, cirro-cumulo-strati and cir.-str.; misty.© 907 || 53-2) 50-7} 2-5|| 0-1] 0-1] 25 0-5 || Cirri and haze on horizon. (0) 922 || 60-3| 57-4} 2-9|| 0-1] 0-0] 28 2-0 || Cirri and cirro-strati, chiefly to S. ; cum. on N. hor. © 936 || 65-1] 58-9} 6-2|| 0-2) 0-1] 2 ||—:—:12|| 3-0 || Woollycirri; large piles and ranges of cum. on N. and 920 || 67-3| 62-0] 5-3) 0-4] 0-3} 6 || 10:—:14 4.0 || Cumuli; cirri. (0) [S. hor.© 917 || 67-7| 60-4| 7-3|| 0-4] 0-3] 2 ||—:—:16] 3.0 || Woolly and mottled cirri; cumuli round horizon. © 915 || 64-9| 60-3} 4-6|| 0-4) 0-1] 4 2.0 || Cumuli and cirri. 0) 927 || 60-0/ 58-2} 1-8]| 0.2) 0-1] 3 2.0 || Cirro-strati and cirri. 933 || 57-0| 56-4] 0-6 0-11 0-0] 4 10-0 || Overcast. 29-923 || 55-3| 54-7] 0-6/| 0-1] 0-0 10-0 || Homogeneous ; misty. 901 || 56-7| 55-4) 1-3) 0-1) 0-0} 4 ]/—: 8:—]| 10-0 || Cirro-stratous scud and cirro-stratus. 906 || 58-8) 56-9} 1-9}; 0-1} 0-0} 4v.]/—: 4:—]| 10-0 || Thick cirro-stratus and seud. 889 || 64-5] 59-3} 5-2] 0-1] 0-1] 8 ||—: 4:—-|| 10.0 Id. 880 || 65-9} 60-7] 5-2) 0-1] 0-1] 28 2:—:— 9-0 || Masses of scud and loose cum. ; cir. haze; solar halo. 854 || 64-2) 60-3) 3-9) 0.1] 0-2) 2 || 4:—:—] 10-0 |] Masses of scud; cirro-stratus. r 845 || 62-4 59-0) 3-4) 0.3} 0.2] 3 ||—: 0:—|| 7-0 || Cirro-cumuli; patches of cumuli; cirrous haze. [s) 853 |) 57-6| 56-0} 1-6] 0.2) 0-1] 4 6-0 Id. ; cirrous haze. 853 || 53-0} 52-6] 0-4] 0.2) 0-0] 8 1-0 || Cirro-strati and haze near horizon. 29-858 || 62-7| 59-0} 3-7| 0.6) 0-5] 20 |/20:—+:28]| 5-0 || Masses of loose cumuli; cirri and cirrous haze. (0) 29-880 || 57-3) 55-2] 2-1) 1-0) 0-0) 8 |/—:18:—)|| 9-9 || Cirro-stratous scud and wavy cirro-strati. 876 || 60-7| 58-2} 2.5] 0-6| 0-4] 16 }17:—:—]| 9-9 || Scud; cirro-strati. 872 || 64-3] 60-3| 4-0] 0-8| 0-8| 18 |}20:—:—|| 10-0 || Ia; id. 878 || 57-7| 53-1} 4-6] 0-8] 0-4] 26 || 18:—:—]| 10-0 || Thick seud; rain! 908 || 56-2| 54-5] 1-7) 0-5| 0.2] 17 ||20:20:—|| 10-0 || Scud and cirro-strati; rain! 945 || 61-0| 57-1] 3-9) 0.3} 0.3] 22 ||28:—:—|| 9.8 || Scud; cirro-strati; cirrous haze; solar halo. B 29-950 || 60-2} 54-4} 5.8|) 0.4} 0-3] 28 || 26:—:— 6-0 || Scud and loose cumuli; cirro-cumulo-strati; cir.-str. © 30-000 || 54-0} 51-3] 2-7) 0.4] 0-1] 28 |30:—:—|| 3-0 Id. ) 30-038 || 51-6} 49-2] 2.4|| 0.2] 0-2] 24 1-0 Id. ») 30-106 || 40-1! 39-71! 0-4! 0.2] 0-1! 17 1-0 || Woolly cirri, cum., and haze to E.; patch of scud to N.© 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. (seud), 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 # Herculis to Arcturus, exploding about 2° N. of Arcturus ; its diameter 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 and after its disappearance, a small red ball continued for 5° or 6° in the same direction ; the meteor moved over about 30° in about 3s. 392 Dairy METEOROLOGICAL OBSERVATIONS, AUGUST 31—SEPTEMBER 7, 1846. THERMOMETERS. Gott Baro- Mean METER Time. || at 32° Wet. From dad. oh. in. 2 pt. 31 20 || 30-122 46-4 20 22 121 51-2 25 10 106 53-6 16 2 086 55-0 24 4 072 58-2 21 6 076 54-4 23 8 || 082 51-3 22 10 | 078 51-4 24 18 | 30-038 51-5 22 20 047 52-2 20 22 | 056 55-4 21 20] 043 59-4 22 2 | 041 59-2 22 4 029 58-6 20 6 | 023 58-2 20 8 034 56-0 20 10 046 53-4 20 18 || 30-021 53-2 28 20 032 56-0 26 22 051 59-8 20 3 0 044 60-8 21 2 039 60-8 20 4 036 61-0 20 6 019 60-6 18 8 | 038 57-6 20 10 045 54.2 21 18 || 30-065 58-0 3 20 080 59-2 4 22 080 61-7 3 40] 074 62-0 6 2 062 61-6 8 4 | 043 60-9 8 6 037 60-4 4 8 035 59-0 4 10 028 57:5 3 18 || 30-000 54-9 8 20 009 55-9 8 22 | 30-006 60-2 . 14 5 0 || 29-986 64-4 0-1] 30 2 955 64-2 0-1] 22 4 929 63-3 0-1 8 6 905 61-8 0-1} 16 8 904 56-7 0-1) 16 10 903 54-5 0-1\ 20 2231 29-790 61-2 0-5| 16 618 || 29-685 55-9 0-1| 19 20 689 58-5 0-1} 28 22 690 63-7 0-2} 21 7 0| 680 64-7 0-2| 19 2 661 65-8 0-2} 22 4 626 64-9 0-3) 18 6 597 63-9 0-1 | 22 8 597 61-6 0-1} 20 10 591 57-5 0-1! 20 em Species of Clouds and Meteorological Remarks. 0-10. 0:5 || Woolly cirri and haze round horizon. 10} 1-0 |} Cumuli and cirri near horizon. © 3-0 || Cumuli; cirri. (0) 7-0 Id. ; id, (2) 8-0 || Scud and cumuli; woolly cirri; cirro-strati. 8 9-5 || Scud ; cirro-strati and cirro-cumulo-strati; cir. haze. 7-0 || Cirro-strati and cirrous haze. > 9-8 || Cirro-strati and cirro-cumulo-strati. 6-0 || Cir.-cum.-str.; cir.-str.; hazy on hor.; scud on Cheviot. 10-0 || Cirro-cumulo-strati and cirro-strati. 9-9 || Patches of scud, cirro-strati, cir.-cum. and cir. haze. 9-5 || Patches of scud and cumuli, woolly cirri, and cir.-str. 10-0 || Scud, cirro-strati, and cirrous haze. 9-8 Id., id., and cirro-cumuli. 7-0 || Id.; cirro-cumuli ; cirro-strati. {0} 7-0 || Masses of scud; cirro-strati; cirro-cumuli. >} 2-0 || Cirro-strati. ») 9-2 || Scud ; cirro-strati. 9-0 || Cirro-stratous scud; sheets of cirro-strati; cir. haze.@ 9-5 || Masses of cirro-stratous scud ; milky cirrous haze. © 9-5 || Cirro-stratous seud; woolly cirri; cirrous haze. [s) 10-0 Id. 9-0 ids cirrous haze. 10-0 || Send. 6-0 || Masses of scud ; cirrous haze. y 2.0 Id. ; id. y) 10-0 || Cirro-stratous scud. 10-0 Td. 9-5 || Scud; cirrous haze. 10-0 Id. 7-0 Id. 8 5-0 Td. 10-0 Id. 10-0 Id. 10-0 Id. 10-0 || Dense mist, objects invisible at 500 yards. 10-0 Td., id. at 4a mile. 10-0 || Scud and cirro-strati; remains of a fog. 7-0 || Loose eumuli; cumuli and haze on horizon. =) 7-0 Id. ; id. (s) 9.5 || Scud and cirro-cumulo-strati ; much haze. 3-0 Id. ; id. (3) 3-0 || Cirro-strati and thick haze on horizon. »)) 2-0 Id. »)) 5-0 || Seud and loose cumuli. (0) 5-0 || Cir.-cum.-str. ; cirro-strati ; foggy ; mist in the valleys. 2-0 || Cirro-strati and fog round horizon. (0) 4-0 || Seud and loose cumuli. (0) 6-0 Id. s) 4-0 Id. 0) 4-0 Id. (0) 3-5 || Cumuli and cumulo-strati; much haze. (0) 8-5 || As before; very electric-looking to E. 2.0 || Cirri and cirrous haze; diffuse lunar corona. ») 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. 20 || 137 22 || 151 10 0] 146 2 || 140 4|| 129 6|| 124 8 || 148 10 |} 171 18 || 30-174 20 || 194 | 92] 199 11 0] 193 | 2|| 182 4|| 185 6 || 184 gi} 211 10 | 229 18 || 30-247 20 || 272 22 || 298 12 0] 301 2|| 306 4]| 311 6 || 317 s|| 337 10 351 2231 30.288 13 18 || 30-099 20 || 094 22} 091 14 0|| 076 2/| 053 4|| 025 6 || 000 8 || 008 Dairy METEOROLOGICAL OBSERVATIONS, SEPTEMBER 7—14, 1846. 393, THERMOMETERS, WIND. 57-6 57-0 59-0 46-8 51-2 60-7 67-0 67-0 69-0 68-5 60:4 55-6 55-0 56-1 46-5 50:8 59-0 62-6 63-1 64-7 64.3 59-1 Maximum force in |e 16 28 28 23: 22: 24: 26: 27: 26: 26: 25: 25: & | Done OO Sky clouded. | Seud. Species of Clouds and Meteorological Remarks. Homogeneous; misty. Scud and cumuli; misty. a) Woolly cirri and cirro-strati; scud and loose cumuli. @ Scud and thick cirro-stratus. Id. ; slight rain since 14, Loose cumuli; cumulo-strati and cirro-strati. (0) Id. (0) Cirro-strati ; cirro-cumuli and cirrous haze. Cirro-strati and cirri. } Cirro-stratous seud ; woolly cirri and cirro-strati. Woolly cirri and cirro-stratus. (s) Scud and loose cumuli; woolly cirri and cir.-str. 8 Id. ; id. ; solar Scud and loose cum. ; cir.-cum. and cir.-str. [halo.6@ Scud ; cirro-strati and cumulo-strati. Id. 10} Cirro-strati to SE. Patches of cloud to E. »)) Woolly and linear cirri on horizon; mist in the valleys. Id. Cirri. (0) Patches of scud. © Id. 10} Woolly and mottled cirri. © Woolly cirri and cirro-strati. Cirri and cirro-strati. y Cirro-cumulo-strati and cirro-strati. Cirro-stratous scud ; slight drizzling rain. Cirro-strati and cirro-stratous scud. Cirro-strati and cirro-cumulo-strati. (0) Masses of cirro-strati; woolly cirri. {0} Cirro-strati ; cirro-cumuli and woolly cirri. (s} Cirro-strati; cirri; cirrous haze. Cirro-strati and woolly cirri. Cirro-strati and cirrous haze; faint aurora. Scud; 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. Scud ; cirro-cumnlo-strati. Uniform mass of scud and cirro-stratus. Id. Overcast. Misty scud ; cirri; fog in the valleys. Fog on horizon. (o) Loose scud. Scud and loose cumuli. Scud, cumuli, and haze. Cumuli; very hazy on horizon. Scud and cumuli; much haze. KOKO) Sept. 94 0b, MAG. AND MET. ozs. 1846. 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. Observation made at 04 5m, Daity METEOROLOGICAL OBSERVATIONS, SEPTEMBER 14—21, 1846. a 394 THERMOMETERS. WIND. Gott. || Baro- alls Cloude, : Mean || meTER Maximum c.: C.-8.: Ci. Time. || at 32° Dry. | Wet. | Diff. force in [From ems 1, ;10™, a. h. in. bs - S Ibs. Ibs. pt. pt. pt. pt. 14 10 || 30-023 || 57-1} 56-7| 0-4|| 0-0| 0-0} 26 18 || 30-012 || 49-3} 49-1] 0-2] 0-1} 0-0} 20 | 28:—:— 20 020 || 57-2| 56-5] 0-7] 0-1} 0-1] 18 |} —:27:— 22 028 || 62-7} 60-6| 2-1] 0-0} 0-0] 14 | 27:—:— 15 0 019 | 66-5| 61-6] 4-9] 0-2) 0-1} O || 26:—:— 2 ||30-005 || 68-6| 63-0} 5-6] 0-2} 0-1) 4 || 25:—:— 4 || 29.990 || 67-5! 62-3] 5-2) 0-2! 0-1] 3 | 25:—:24 6 983 || 67-0| 60-1| 6-9]! 0-3} 0-2] O || 26:—:— 8 997 || 58-9| 57-4| 1:5] 0-3) 0-0} 4 10 998 || 51-5| 51-4! 0-1]| 0-0} 0-0 18 || 29-985 || 46-2| 46-0} 0-2|| 0-1| 0-0] 18 || —:24:— 20 || 30-006 || 50-1| 49-7| 0-4)) 0-1) 0-1) 17 22 || 30-001 || 58-3| 56-2} 2-1] 0-1) 0-0} 28 |} —:25:— 16 0 | 29-991 || 64:0} 60-3) 3-7|| 0-0| 0-0} 30 2 967 || 68-7| 64-2) 4-5] 0-1} 0-1} 16 || — ;24:— 4 942 || 65-3) 61-9] 3-4] 0-1) 0-0} 20 || —:24:— 6 925 || 64-0| 59-3} 4-7) 0-1] 0-0) 26 || —:22:— 8 932 || 60-4} 58-4} 2-0] 0-0| 0-0) 24 10 914 || 58-2| 57-0} 1-2] 0-0) 0-0] 16 18 || 29-847 || 52-4} 51-5] 0-9) 0-1) 0-0) 17 |} —:24:— 20 847 || 55-0] 54-0] 1-0] 0-1] OL] 8 || —: 26:— 22 849 || 59-0| 57-0} 2-0] 0-1} 0-0) 22 Lz 0 829 || 63-0} 58-6| 4-4|| 0-1} 0-1] 28 || —:30:— 2 808 || 65-8} 60-0} 5-8] 0-1| 0-1] 4 || —:30:— 4 792 || 63-0} 58-6| 4:4] 0-1} 0-1 Soli— 0 6 780 || 61-2] 57-0} 4-2|| 0-0} 0-0] 8 8 789 || 57-3| 54-0] 3-3]} 0-2] 0-1) 2 10 792 || 55-8| 53-6/ 2-2] 0-1} 0-0) 2 18 || 29-799 || 47-8| 46-3] 1-5 || 0-4] 0-1] 28 Aa capes 20 793 || 48-0} 46-3} 1-7|| 0-1} 0-1] 30 22 795 || 53-5] 50-3| 3-2]/ 0-1] 0-1) 8 || 6:—:— 18 0 790 || 57-0| 52-1} 4:9 || 0-2) 0-1 DM Vite 2 | 754 || 57-7| 53-1) 4-6]| 0-2] 0-2) 3 1 10:—:— 4 738 || 58-2) 52-6| 5-6] 0-3) 0-2) 4 |}—:16:— 6 708 || 55-6] 50-6} 5-0] 0-2] 0-1) 4 |} —:18:— 8 706 || 47-0| 45-6] 1-4|| 0-1] 0-0} 20 10 699 || 44-4| 43-6| 0-8] 0-0} 0-0} 18 18 || 29-584 || 45-9| 45-0] 0-9] 0-2] 0-0] 23 | 26: —:— 20 560 || 49-0} 48-0] 1-0|| 0-0} 0-0] 17 || —: 26: — 22 527 || 58-0| 54-0} 4-0]} 0-2} 0-1] 20 || —: 26: — 19 0 492 |\ 61-2| 55-5| 5-7|| 0-3| 0-2] 22 | 98 :— :— 2 461 | 61-1] 56-1| 5-0} 0-2} 0-1} 20 4 444 || 56-8| 55-0} 1-8]| 0-2] 0-1} 20 6 423 || 55-0} 54-0| 1-0]) 0-2] 0-2] 18 8 415 || 54-1} 53-4] 0-7 |] 0-2] 0-1) 18 || 10 402 || 53-7) 53-3] 0-4|| 0-1] 0-0] 2 223] 29.367 || 59-2| 56-6) 2-6]) 0-0) 0-0) 0 || 4:30:— 20 18 || 29-531 || 51-7) 51-0; 0-7} 1-1) 0-0) 2 20 557 || 52-5] 51-2] 1-3] 0-2] O-1) 3 || —: 4:— 22 572 || 56-5| 52-0) 4-5} 0-6] 10} 5 |) 7:—:— 21 0 578 || 58-2) 52-3) 5-9|| 0-5| 0-4) 6 | 7:—:— 2 570 || 58-5| 51-3| 7-2] 0-4) 0-4) 4] 9:—:— 4 556 || 57-2] 50-0} 7-2) 0-4} 0-3 6 6 566 || 55-0| 49-0! 6-0|| 0-3| 0-2] 6 || 8:—:— Sky clouded. | | | Species of Clouds and Meteorological Remarks. Scud. Misty scud ; cirro-strati; mist on the ground. F Cirro-cumulo-strati and cirro-strati; fog on horizon. ©] — Seud. Seud and cumuli. © Idia; hazy. © Id. ; woolly cirri; very hazy. s) Ld; sheets of cirri and cirro-strati. (0) Sheets of cirro-cumuli. Haze on horizon; stratus in the valleys. Cirro-cumulo-strati ; woolly cirri; fog, objects invisible Thick woolly cirri; fog in the valleys. [at 300 yards, Loose cirro-cumulo-strati. Id. Cirro-stratous scud. Td. Id. Id. Id. Cirro-cumulo-strati. Cirro-stratous seud. Id. ; Td. Id. Td. Id. Id. Dark, Scud ; woolly cirri. Cirro-cumulo-strati and cirro-strati on E. horizon. Loose cumuli. Id. Id. Cirro-cumulo-strati. Id. hazy ; clouds nearly uniform. OOO OO || Patches of cirri. Seud. Seud. Cirro-cumulo-strati and scud. Cirro-cumulo-strati ; cirrous haze. Scud and cirro-stratus ; haze. Thick covering of cirro-stratus ; much haze. Id. ; id.; rain!"5 Densly overeast ; rain! Id. ; id. Id. ; very light rain. ; Masses of loose cumulons scud ; cirro-cumulo-strati; both currents \ moving very slowly. | Cirro-stratous seud ; sky to E.; slight drizzling rain. | Cirro-cumulo-strati and cirro-strati. | Cumuli ; cirro-cumulo-strati to SW. iid. Id. Id. | Scud and cumuli. 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. The most of the swallows seem to have gone off to-day. Sept. 174. DaILy METEOROLOGICAL OBSERVATIONS, SEPTEMBER 21—28, 1846. 395 THERMOMETERS. Winn. 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. : e Scud ; cirro-cumulo-strati and cirro-strati. Id.; woolly cirri to W.; cumulo-stratito N. and E. 3 Cirro-strati and scud. Seud 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 225 10™. Id.; cumuli; cirro-stati; rain till 0° 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. Id., 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.6 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. Scud; loose seud and cumuli. Id. Scud and cirro-strati. Scud and cirro-strati. Thick seud and cirro-stratus. Id. ; rain! Thick cirro-stratus ; id. Cirro-stratous scud and cirro-stratus ; fog on horizon. Scud; cumuli; cirro-strati. Id.; id.5 id, ; rain! Seud and cirro-strati; stars dim. Tas 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? Clouds, i, Danek Maximum || Se. : C.-8. :Ci., Time. || at 32°. |! Dry. | Wet. | Ditt.| force in [rom Tee 1b, ,10™ de hs in. 8. ¢ : Tbs. | lbs pt. | pt. pt. pt. 21 8 || 29-585 |) 51-3] 48-9} 2-4] 0-1] 0-1] 6) 10 588 || 50-6} 48-6} 2-0] 0-1) 0-1) 2 18 || 29-561 |} 35-0) 34-7} 0-3] 0-0| 0-0) 24 | —: 16: — 20 574 |) 41-2} 41-1] 0-1] 0-1] 0-0} 22 |} —:16:— 22 575 || 51-0} 48-6| 2-4|| 0-2) 0-1) 12 | 14:14:— 22 0 560 || 57-0] 51-5] 5-5]| 0-4| 0-4] JO | 11:11:— 2 523 || 58-7) 53-8} 4-9] 0-3} 0-8} 10 |) 12:12:— 4 4 499 || 58-2| 52-8} 5-4]| 0-8} 0-7 6 468 || 55-4] 51-2] 4-2] 0-8] 0-2] 6 8 471 || 54-7| 50-7) 4-0] 0-4| 0-4) 12 10 440 || 54-4) 49-7] 4-7] 1-5] 0-5} 12 18 || 29-289 || 54-3) 53-1] 1-2] 0-6) 0-8) 6 |) 13:—:— 20 244 || 55-1} 54-8} 0-3] 1-7] 1:3] 6 |) 11:—:— 22 204 || 57-6) 56-4} 1-2] 0-9} 0-3) 4 || 10:—:— 23 0 154 || 58-6] 58-0] 0-6) 0-5} 1-0) 12 | 13:—:— 2 135 || 63-4} 61:0] 2-4] 0-9} 0-2} 12 || 16:—:— 4 125 || 60-9} 59-4| 1-5|) 0-4) 9-2] 14 || 16:—:— 6 124 | 58-6; 58-0) 0-6} 0-2} 0-1} 28 | 15:—:— 8 131 | 55-6} 55-5) 0-1] 0-0} 0-0} 28 10 133 || 51-2) 50-9] 0-3 || 0-0] 0-0 18 || 29-138 || 50-7| 50-6} 0-1]| 0-0) 0-0 20 159 || 51-6| 51-4] 0-2) 0-0] 0-0 22 174 || 55-7| 55-3} 0-4] 0-1} 0-0} 10 24 0 189 || 59-4} 57-6) 1-8]) O-1/ OL} 8 | 14:—:— 2 190 || 63-2) 59-3) 3-9] 0-1] 0-1) 8 |—:14:— 4 181 || 63-4} 60-3} 3-1]} 0-1] 0-1] 10 || 16:—: — 6 218 || 57-7} 56-8) 0-9] 0-3) 0-3) 4 |) 5:—:— 8 258 || 55-3} 55-1] 0-2] 0-3) 0-1) 2 10 282 || 54-8} 54-6] 0-2] 0-1) 0-1 1 | 18 || 29-361 |) 55-4] 54-9} 0-5 |) 0-0] 0-0} 22 || 28: —:— Ey 20 392 || 55-5} 54-0) 1-5] 0-2) 0-1) 21 || 26: —:— 22 430 || 58-6) 55-3] 3-3) 0-3) 0-3} 20 | —:23: — 25 0 440 || 61-7) 55-8} 5-9 |) 0-5} 0-6| 20 | 26:—:— i 2 448 || 62-6] 56-4) 6-2) 0.6] 0-2) 21 | —: 24: — 4 447 || 63-2) 57-6} 5-6} 0-5] 0-1| 24 | 24: 24:— 6 454 || 59-7) 55-4] 4-3]] 0-3] 0-1] 22 |24:—:— 8 480 || 55-1} 52-8] 2-3]/ 0-1] 0-1) 20 | 10 | 483 || 54-9| 53-3] 1-6] 0-3] 0-1] 19 | 18 || 29-407 || 46-0] 45-7} 0-3] 0-2] 0-0) 4 20 390 || 48-9] 48-2] 0-7] 0-0) 0-0} 4 )18:—:— 22 360 || 52-3| 51-2} 1-1] 0-0} 0-0] 3. 26 0 311 || 56-3} 54-5] 1-8] 0-4] 0-2) 18 | 2 277 || 58-6] 55-9} 2-7) 1-4] 0-8] 17 | —:17:— 4 227 || 61-4) 57-7| 3-7) 1-5] 0-5] 14 || 18:—:— 6 223 || 58-6] 57-3] 1-3] 0-8] 0-3] 16 ||} 19:—:— 8 220 || 56-5) 55-4} 1-1|| 0-6] 0-3] 18 » 10 238 || 56-2] 55-0} 1-2]| 0-5] 0.2] 18 | 224) 29-343 || 57-0} 54-6] 2-4|/ 1-2] 0-2] 18 || 24: 14:— | 27 18 || 29-362 || 38-0] 37-8] 0-2] 1-2} 0-0] 16 20 379 || 39-6] 39-3] 0-3]! 0-0} 0.0) 18 || —:—: 20 22 363 || 47-3| 46-5] 0-8] 0-1) 0-1] 6 || —:14:— 28 0 338 |) 53-2) 51-7} 1-5|/ 0-1] 0-1) 2 8:—:— 2 305 || 53-4] 52-6] 0-8 || 0-4) 0.3) 4 |] 11:—:— 4 296 || 52-01 51-4] 0-6|] 0-5] 0.4] 4 9:—:— Sept. 22210. There is evidently a bright aurora, but it is almost wholly obscured by clouds. Sept. 234 Ob, About 23 the wind changed for a short time, the clouds moving from WSW., shortly afterwards two currents were ob- served ; rain?—5 since 22h, Sept. 234 18h, Observation made at 184 30m, 396 DAILY METEOROLOGICAL OBSERVATIONS, SEPTEMBER 28—OctToBER 5, 1846. | THERMOMETERS. Wind. Clouds ian) Meee ee Se.:Cie8.: Ci.) Sky ; f la _ ae geal cele ae movin g ||clouded. Species of Clouds and Meteorological Remarks. 1%, ;10™, a. h. in ° ° ° || tbs. | Ibs. | pt. |] pt. pt pt. |} O—10. 28 6 || 29-295 || 48-4} 47-9| 0-5 || 0-5) O-1 0 || 10:—:—J} 10-0 || Send; rain® 8 280 || 49-2] 49-0} 0-2] 0-2/ 0-2) O 10-0 Id.; rain? 10 || 256 || 49-8| 49-3| 0-5 |) 0-2] 0-1] 14 10-0 || Id.; rain®® 18 || 29-105 || 50-0} 49-5) 0-5 || 0-5] 0-1 0 10-0 || Seud ; rain”? 20 092 || 48-8| 48-4| 0-4|) 0-1} 0-0} O || 0:—:—|} 10-0 || Loose scud near horizon; uniform mass above; rain® 22 075 || 48-2! 47-9! 0-3 || 0-2] 0-1] 24 10-0 || Scud; uniform mass above; rain* 29 0 046 || 49-0] 48-5] 0-5 || 0-6] 0-4) 1 || 2: —:—]/ 10-0 Id. ; id. ; rain” 2 | 050 || 49-4] 49-2| 0-2]) 0-7| 0-1| 28 || 0: —:—]] 10-0 |] Ia.; rain’ 4 | 027 || 50-3] 49-9| 0-4|| 0-5| 0-7| 23 |/26:—:—]] 10-0 |] Id.; rain? 6 || 069 || 50-8| 49-6| 1-2|) 1-6] 1-1] 27 ||29:—:—]} 10-0 || Ia; rain”? 8 | 063 || 51-8] 50-2] 1-6] 2-4] 1-5] 30 10-0 || Ta. 10 | 149 || 51-2] 49-8| 1-4]) 0-2] 0-2] 31 10-0 || Cirro-strati. 18 || 29-383 || 51-0| 49-5] 1-5 || 0-4] 0-1} 30 1:—:—|| 9-5 || Scud; cirro-strati. 20 435 || 50-6| 48-6} 2-0|| 0-4] 0-1] 31 2 Qi ——i) 7-0 Id.; cirro-cumulo-strati. 22 478 || 53-0| 51-4] 1-6]} 0-1] 0-1) 31 2:—:—| 7-5 Id. 30 0 491 || 57-3] 53-6| 3-7|| 0-3| 0-2] 4 || 2:—:—j} 7-0 |/ Scud and loose cumuli ; woolly cirri. 2 516 || 57-7| 53-2| 4-5 || 0-2} 0-1 4 0:—:— 9-0 Id. ; id. 4 || 527 || 57-7| 52-6] 5-1}| 0-2] 0-1) 4 || —:—:31 9-0 || Cirri; masses of scud and cumuli. 6 547 || 54-2| 52-3) 1-9|) 0-1} 0-1} 12 || —:30:30 9-5 || Cirro-strati and cirri. 8 572 || 51-0} 50-2} 0-8 || 0-1} 0-0) 30 10-0 || Dense mass of cirro-strati. 10 581 || 49-4} 48-8} 0-6|| 0-1) 0-0] 6 10-0 || Cirro-strati and cirro-cumulo-strati. 18 || 29-563 || 51-6| 50-6| 1-0]] 0-2] 0-1] 16 ||22:—:—}| 10-0 || Scud 20 | 573 || 53-1] 51-7| 1-4]| 0-5] 0-4] 20 ||}23:22:—}]| 9-5 Id.; cirro-cumulo-strati. 22 593 || 55-5| 53-4] 2-1]| 0-5} 0-1} 22 ||} 21:—:—|| 10-0 Id.; cirro-strati. 10::| 578 || 57-7| 55-4] 2-3]] 0-3} 0-3] 22 || 22:—:—]| 9-9 Id.; cirro-cumulo-strati. 2 586 || 62-8] 59-0] 3-8] 0-4| 0-4] 19 || 24:21 :— 9-5 Td. ; id. 4 607 || 60-6| 53-6] 7-0]| 0-6| 0-6} 25 ||}24:—:23 3-0 || Seud and loose cumuli; cirri. fo) i 6 638 || 55-2} 50-0] 5-2]| 0-9) 0-1] 20 0-3 || Cirri. . 8 || 666 |) 49-7| 47-6) 2-1|| 0-3] 0-1) 22 1-0 || Thin cirri and cirrous haze. Dy 10 676 || 44-2) 43-8] 0-4]| 0-1} 0-1} 16 0-5 Id. »)) 18 || 29-621 || 38-7} 38-3] 0-4] 0-1} 0-1} 16 2.0 || Cirri; cirro-strati; stratus in the valleys; much dew. } 20 616 || 40-5| 40-2} 0-3 || 0-1} 0-0] 22 || —:—:20]| 4-0 Id. ; id. ; stratus. 22 583 || 49-6| 49-0| 0-6]| 0-1| 0-1] 18 || —:19:—|| 8-0 || Woolly cir.-cum. ; fog, objects invisible at 13 mile. 20 517 || 56-9| 52-3] 4-6] 0-1] 0-1] 31 ||—:18:—]] 9-0 Id. ; stratus ; patches of scud on E. and S. hor. 2 453 || 60-3| 55-3) 5-0|| 0-4| 0-3) 18 ||16:17:—]] 7-5 || Scud and cumuli; woolly cirro-cumuli; haze on hor. 4 387 || 59-7| 54-2] 5-5|| 0-4| 0-3) 18 || 20:—:— 7-0 Td; cirro-cumuli. 6 363 || 55-4| 51-4| 4-0]| 0-4) 0-1| 20 ||/18:18:—|| 9-0 || Scud and cirro-cumulo-strati ; cirro-strati. 8 348 || 47-2| 46-5| 0-7 || 0-2| 0-1] 20 0.5 || A few patches of scud ; cirro-strati and stratus. Dy 10 324 || 45-8| 45-6| 0-2]| 0-1} 0-0) 18 || —:24:—|| 6-0 || Cirro-cumulo-strati and cirro-strati; foggy on hor. }} 18 | 29-384 |) 42.0| 41-0| 1-0] 0-4| 0-1) 20 0-5, || Cirro-strati on horizon. ’ 20 || 413 || 43-3] 41-7} 1-6]) 0-2) 0-1) 18 0.2 || A few patches of cirro-stratus. [o) 22 423 || 50-9| 48-2) 2-7]) 0-2) 0-2) 22 0-5 || Patches of seud; cirro-strati and haze. (0) 3”0 433 || 55-0] 49-4] 5-6|| 0-4| 0-3} 22 ||24:—:—|| 8-0 || Scud and cumuli; cumuli and cirro-strati. 2\| 435 || 56-0] 50-4] 5-6}| 0-9| 0-2} 26 ||23:—:—|| 3-0 Id. ; cumulo-strati on E. hor. fo) i 4 445 || 58-0] 51-1] 6-9}) 1-0] 0-5| 22 |) 22:—:— 2.0 |} Cumuli; cirri. (0) 6 466 || 51-2] 47-2] 4-0} 0-5| 0-2| 16 0-2 || Cirro-strati and haze on horizon. F 8 496 || 46-2] 44-4| 1-8] 0-8) 0-0} 22 0-1 Id. yy 10 505 || 44-1} 43-2} 0-9]| 0-2) 0-1} 26 0-1 Id. ») 23 || 29-472 || 52-2] 48-5| 3-7]| 1-0] 0-4] 14 || —:20:—]] 10-0 || Cirro-stratus and haze. | 418 || 29.322 | 55-0} 52-6] 2.4 )| 2-0 0-3/ 11 ||! 11:—:—|| 10-0 || Seud; cirro-stratus and cirrous haze. 20 326 || 56-9] 53-6] 3-3], 0-4| 0-2} 12 ||} 11:—:—|| 10-0 Id. ; id. 22 303 || 59-1] 55-2| 3-9]| 1-3) 0-9] 14 ||13:14:—]} 9-9 Loose scud ; cirro-strati and cir.-cum.-str.; cir. haze.@ 5 0 277 || 61-6| 56-4| 5-2]) 1-6 | 0-8} 10 |\11:—:— || 9-9 || Scud; cirro-strati. 2 | 241 || 59-3! 56-5| 2-8) 1-7) 1-4! 14 |} 11:—:—1 10-0 Id. ; id. The direction of the wind is indicated by the number of the point of the compass, reckoning Niv—=10) E. = 8, 8S.=16, W.= 24. The motions of the three strata of clouds, Sc. (scud), ©.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. DAILY METEOROLOGICAL OBSERVATIONS, OcTOBER 5—12, 1846. 397 THERMOMETERS. WIND. Maximum force in _ wee — ee Ce ml BPORUI A DODRAHMOHKEA Y Clouds, Se.:C.-s.: Ci., Sky clouded. Species of Clouds and Meteorological Remarks. Scud ; cirro-strati. Id. ; id. Scud and cirro-cumulo-strati. Id. Scud and cirro-strati. Seud ; cirro-cumuli. Id.; cirro-strati. Id.; cumuli and cumulo-strati; cirro-strati. Scad and loose cumuli; cirro-strati. Id. Patches of scud; cirro-strati and cirrous haze. Scud and loose cumuli. Id. Scud and cirri. »») Cirro-strati and woolly cirri; cumuli on horizon. Thick woolly cirri ; cirro-strati ; scud lying on Cheviot. Scud and loose cum. ; woolly cirri; cir.-str. on hor. © | Seud ; eumuli and cirro-strati; rain”? Seud and eumuli; cirri and cirro-strati. Thick seud ; id. Dark ; rain? | Cirro-strati to N. Scud and cirro-strati. Cirro-strati and cirrous haze. Cirro-stratous scud and cirro-strati; cirrous haze. Seud ; cirro-stratus and cirrous haze; rain? Fd. id. ; eum. on hor. @ Id. ; id. ; id. Loose send; loose cir.-str.; dense cir,-str. in yariously-coloured and Cir.-str. and haze on N. and E. hor. }+ [contorted sheets, Scud; cirro-strati and haze. ») | Seud and cir.-str.; thin haze, causing a faint lunar Seud ; cirro-stratus. [halo. ) Loose scud; dense mass of cirro-stratus. Id. ; id. ; rain! ide id. [rain. Scud ; cir.-str.; bank of white clouds to E.; drops of Scud moving rapidly ; cirro-stratus. Scud and cirro-strati. Scud; cirro-cumuli; drops of rain. Id, ; cirro-strati; rain occasionally. Td: = id, Td. ; id. aes id. Scud and cumuli; sheets of cirro-strati and cirri. © Send; bank of cir.-str. to E.; cir.-str. and cirri to W. Scud and cirro-strati; principally to E. Id. ; dark, Send ; cirro-cumuli and cirro-strati. Seud; rain”? Id.; rain” dt; cid: Id.; 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. 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, 1846. Gott. Bako- Mean METER Time. || at 32° d. h. in. 12 2 || 29.433 4 493 6 554 8 || 619 10 686 | 18 || 29-786 20 || 814 22 834 13 0 812 2 801 4 781 6 745 8 698 10 642 18 || 29-244 20 || 29-115 22 || 28-956 14 0 866 2 776 4 698 6 | 664 8 638 10 616 18 || 28-596 20 637 22 665 15 0 700 2 725 4 750 6 792 8 835 10 854 18 || 28-959 20 || 28-996 22 || 29-015 16 0 031 2 035 4 | 047 6 085 8 | 107 10 133 18 || 29-210 || 20 242 22 261 17 0 263 2 258 4 269 6 | 282 8 306 10 | 333 23 || 29-389 || 18 18 || 29-262 || 20 | 290 22 DaILy METEOROLOGICAL OBSERVATIONS, OcTOBER 12—18, 1846. LU THERMOMETERS. | WIND. Clouds, Bs i Se. : C.-s. :Ci., Dry. | Wet. | Diff | ee Pa moving aondeal Species of Clouds and Meteorological Remarks. | 18.) Lom, poe ¢ s e || tbs. | Ibs. | pt. j| pt. pte pt. |] 0—10. || 51-0| 49-0) 2-0 | 5-2| 2-6] 2 || 4:—:—]) 10-0 || Seud. 51-9| 47-1| 4-8] 4-7] 3-2] 2 || 3:—:—|| 10-0 || Id.; cir.-str. and cir.-cum.; parhelion seen about 3". ] 49-2| 46-0| 3-2|] 4-2] 2-8] 2 || 3:—:—| 10-0 Id. | 49-0] 44-4| 4-6|| 4-5] 3:0} 2 9-8 || Id.; dark. j 44.5 | 42-8| 1-7|| 3-3| 2-6] 0 9-9 Id.; rain! 43-7| 40-1| 3-6) 5-1] 1-2] 31 || 3:—:—|| 7:5 | Seud. } 43-9| 40-3| 3-6] 2-1| 1:0} 0 || 2:—:—|| 7-0 Id. 45-7| 42.2} 3-5 || 2-2) 1-2) 31 2:—:—| 3-0 Id. ; cirro-strati. 47-6| 43-0| 4:6) 2-6] 1-5} 0 ||/—: 3:—] 7-5 | Cirro-strati and cirro-cumulo-strati. 47-8| 43-3] 4-5]| 1-7] 0-7| 31 || 0:—:—]) 10-0 | Scud. 47-6| 41-4| 6-2|) 1-7] 0-6) 0} 2:—:—] 9-5 Id. 44.8| 41-0| 3-8|| 0-6] 0-3} 0] 2:—:—] 7-0 Id. 41-6] 38-8] 2-8|] 0-2} 0-2] 20 | 6-5 Id. 40-5| 38-7| 1-8|| 0-1| 0-1] 18 8-0 Id. ; stars dim. 41-6] 39-0| 2-6|| 0-5) 0-5) 18 10-0 || Scud; a few spits of rain. 39-5] 38-4] 1-1|] 0-8) 0-3) 13 | 14:—:—]) 10-0 Id.; rain! since 18" 20". 40-6| 39-7} 0-9]| 1-8] 1-0] 14 || 14:—:—] 10-0 Id.; rain! 43-0| 42-0| 1-0|| 2-4] 1-1] 14 ||} 14:—:—] 10-0 Id.; rain? 44-7] 43.6| 1-1|| 1-2| 0-2| 20 ||16:—:—| 9-9 || Id.; rain’ 7 48-4| 47-0| 1-4|| 0-3| 0-1) 2 ||}18:—:—]|, 9-5 || Scud; cirro-strati. : 45-3} 43-8] 1-5|| 0-1] 0-1) 3 }16:—-:—]} 10-0 || Id.; id. J 45-2| 44-8) 0-4|| 0-1/ 0-1) 8 | 10-0 || Slight drizzle; very dark. ’ 45-3| 44-9) 0-4] 0-1| 0-0] 3 | | 10-0 || Very dark. 4 44-8| 44-6} 0-2)| 0-0) 0-0 10-0 || Seud; misty. \ 45-1| 45-0} 0-1)| 0-0) 0-0] 18 10-0 || Fog, trees invisible at 200 yards ; scud and cir.-str. \ 48.0| 47-4! 0-6|| 0-1| 0-1| 24 ||—:15:—J| 9-5 || Cirro-cumulo-strati and cirro-strati; foggy. 53-0| 50-5| 2-5|| 0-1] 0-1| 7 ||—:13:—|| 7-5 || Large cir-cum.-str. and cir.-str.; cum.-str. on hor. @ 52-8] 50-4| 2-4]] 0-1] 0-1} 2 }13:—:—|} 9-0 || Scud and cumuli ; id. 52-6| 49.9} 2-7|| 0-1] 0-0] 8 |15:—:—]) 9:5 Td. 48.0| 46-9| 1-1|| 0-1) 0-0) 6 ||—:15:—) 6-5 || Cirro-cumulo-strati ; cumulo-strati and cirro-strati. 47-7| 47-0| 0-7|| 0-1) 0-1) 6 8-5 || Seud and cirro-strati. 43-5 | 43-2| 0-3|| 0-1] 0-1] 18 | 5:0 Id. ; misty. 42-0| 41-8| 0-2] 0-0) 0-0) 6 10-0 || Fog, trees invisible at 200 yards. 41-8| 41-6| 0-2]| 0-0) 0.0) 8 10-0 || Id., id. y 45.6| 45-2| 0-4|| 0-1| 0-0] 6 | 10-0 || Ia., id., 1 mile. 51-8| 51-0| 0-8]] 0-1| 0-0] 28 ||: 13:—]| 9-0 || Misty seud and cirro-cumulo-strati ; cirro-strati. (5) 53-7| 51-3) 2-4]) 0-1] 0-1] 8 | 9-8 Id.; id. (>) 54.2] 52-1) 2-1] 0-1} 0-1] 4 6:12:—)| 9-5 || Scud; cirro-strati and cirro-cumuli ; cumulo-strati. 51-6| 50-9| 0-7) 0-2| 0-1) 4 || 5:—:—|] 10-0 || Send; rain™® 50-8 | 50-4] 0-4|| 0-2} 0-1] 2 | 10-0 Id.; misty. 43.2| 42-8| 0-4) 0-1] 0-1) 8 3-0 || Scud and cirro-strati near horizon. 47-9| 47-6| 0-3) 0-1) 0-0} 20 10-0 | Scud; slight mist. i 48-9| 48-6| 0:3 |] 0-1| 0-0} O || 6:—:—| 10-0 Id. ; id. 52-8| 51-2| 1-6|| 0-2| 0-2| 7 | 6:—:—|| 10-0 | Ia. | 53-8| 52-8] 1-0|] 0.4] 0-2] 2 || 5:—:—|| 10-0 || Id.; drops of rain. ; 55.6| 53-7| 1-9] 0-6| 0-3| 2 || 5:—:—|| 10-0 || Smoky seud, very low, moving rather quickly. , 53-5| 53-1| 0-4|| 0-6] 0-3| 1 || 4:—:—|| 10-0 || Send. ; rain? ; 53-2) 52-8| 0-4]) 0-5} 0-3} 2 || 4:—:—] 10-0 Id.; rain! 53-8| 53-2| 0-6|| 0-4| 0-2] 3 || 10-0 | Ia. 52-4| 52.2| 0-2|| 0-3| 0-1) 3 7-0 || Id.; clear in zenith. 52:3| 51-5| 0-8] 0-2| 0.1] 6 || 6:—:—|| 10-0 || Uniform misty seud. 50-8 | 50-3| 0-5 || 0-3| 0-2} 20 | 10-0 || Send ; rain! 50-8} 50-0| 0-8] 0-6| 0-2) 22 10-0 || Dense mass of cirro-stratus. 55+2| 53-3 1-9 | 0-3! 0-2} 20 | —:18:—)| 8-0 | Cirro-cumulo-strati; send and loose cum. near hor. @ 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, The motions of the three strata of clouds, Sc. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Oct. 154 18%, Observation made at 18% 15™, Dairy METEOROLOGICAL OBSERVATIONS, OcTOBER 19—25, 1846. 399 ; WIND. THERMOMETERS Gionds Waniaan ||[Se. :C.-s.: Ci. | Sky force in moving clouded, Species of Clouds and Meteorological Remarks. Thick seud ; rain? Seud ; cirro-strati and cirro-cumuli. Id.; cirro-strati. Id. ; id. Clouds near horizon; stars dim. Seud and cirro-stratus ; faint auroral light. Scud 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. Scud and cirro-stratus. Id. Dense clouds ; break to SE. Scud; 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. Scud; cirro-cumulo-strati; cirro-strati. Thick dark scud and cum.; at 6"15™, a peal of thunder Dark ; rain”? [was heard ; rain! after 64 20™, Rain? Scud. Cirro-stratous seud and cirro-strati. Seud ; cirro-strati; rain”? Id, ; id. ; cumuli, Td. ; id.; id. Loose seud; dense cir.-str.; white scud on SE. hor.; rain! Cirro-strati and scud. 1 Be occasional showers. 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. Seud ; rain!® Id. Uniform cirro-stratus ; loose scud below near horizon. . . a : Scud and loose cirro-stratus ; slight rain occasionally. 190 : D - 5 . —- . Id. 209 : 5 . . . . Cirro-stratous scud. 243 : 2: . - —: . Id. 278 : : 4 i , ‘| Id. 345 -0| 44-8} 1- 5 . . Rain? ; the wind and rain commenced about 94 30™. 29-715 *5 | 46-7) 2- : D —: : Scud and loose cumuli. 25 18 || 29-708 -0| 31-7] 0- . . . Cirri on E. horizon; mist on the ground. 20 706 -5 | 32-5] 0- \ . 4 Woolly and linear cirri; bank of cirro-stratito W. © ee EB Ee ee DARHHARWHS SOS OO RP ORO mrs Sok KHbehebhawr oo 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. Oct. 19418. Observation made at 18% 10™, Clouds, Se.:C.-s.:Ci.,| Sky ae p moving _ |[clouded. Species of Clouds and Meteorological Remarks. from pt. pt. pt. |) 0—10. |23:—:—) 9-5 || Seud; cirro-strati. | 7-5 || Woolly cirri and cirro-strati ; seud and cum. on hor, © }20:—:—|| 4-0 || Loose cumuli; wooly cirri. is) 1-5 || Cumuli and cumulo-strati round horizon, © i 1-0 || Scud and cirro-strati. »)) 0-0 || Clear; slight fog on the ground. »)) 0-0 Id. ) 0-1 || Cirri on E. horizon. 1-5 || Cirriand cir.-cum. ; stratus in the valleys; hoar-frost.©} 20:—:—)| 9-0 || Girro-stratus scud. (0) 20:—:—)| 8-0 Td. 20:—:—)| 7-0 | Td. ; cumuli to E. (Oo) ie 120:—:30] 8-0 | Id. ; woolly cirri. 21:—:30) 7-0 || Seud; woolly cirri. : 10-0 | Seud and cirro-stratus. . 10-0 | Id. . ! 10-0 | Scud and cirro-stratus. | |—: 0:—)| 8-0 || Girro-cumulo-strati; cir.-str.; cir. and cirrous haze. . —: 0:—|| 8-0 | Cirro-cumulo-strati and cirro-strati. ; 19:—:—|| 9-5 || Seud ; cirro-cumulo-strati. |20: 3:—|| 7-5 | 1a; id. 19: 3:—| 8-0 Id. ; id. and woolly cir. ; hazy on hor. —: 2:—| 8-0 | Cirro-cumulo-strati. 7-0 | Id. 10-0 || Scud, cirro-strati, and cirro-cumulo-strati. 6-5 | Seud and cirro-strati. 9:0 | Id. (0) 2-5 || Cirro-cumulo-strati ; haze on horizon. (s) 0-5 || A few clouds on S. horizon; much haze on horizon. © 0-5 || Cumuli and cirro-strati on horizon ; haze on horizon. © 0-5 Id. ; id. (0) | 2-0 || Cirri and cirro-strati near horizon ; haze on horizon. ) 6-0 || Cirro-strati and cirri. ») 8-0 0-5 || Band of cirro-strati to E.; misty. 0-5 || Linear cirri on E. horizon ; stratus in the valleys. 20:—:—|| 9-8 || Seud; cirro-strati. 21:—:—|) 10-0 itd id. ; hazy. | 2-0 || Seud on horizon. 10} 23:—:—|| 4-0 || Seud and ecirro-strati; woolly cirri. 21:—:—]} 9-5 || Scud; cirro-strati. 1-0 || Patches of cirro-strati and cirro-cumuli. Dy] | 3-0 || Sheets of cirro-cumuli. } 7-5 || Send and cirro-strati. 9-5 || Scud; cirro-strati; woolly cirri and cirrous haze. ' |20:—:—|| 10.0 Id. |20:—:—|| 10-0 Id. : H 9-9 || Id.; cirro-strati. 4 19:—:—|| 9-5 Id.; sheets of cirro-strati. , | 10-0 Id.; uniform mass of cirro-stratus ; drops of rain. re | 10-0 || Id.; id. ; } 10-0 Id.; drops of rain. ie |} 19:—:—|| 10-0 || Scud; cirro-stratus, 10-0 |! Seud and cirro-strati. | | THERMOMETERS. | WIND. Gott. || Baro- |- - - Mean || merer | Maximum Time. || at 32°. || Dry. | Wet. | Diff. | force in |From | | 14.) 10™, ad. oh. in. i e - S I lbs. | Ibs. pt. 25 22 | 29-727 | 40-6| 40-3| 0-3) 0-1] 0-0] 30 26 0 737 | 46-6| 45-3! 1-3] 0-1| 0-1) 24 2\| 746 || 51-6] 48-2| 3-4] 0-2] 0-1] 24 4 790 | 50-7| 47-2) 3-5 | 0-3| 0-1| 24 6 837 | 39-8) 39-3) 0-5 || 0-2| 0-0| 20 8 | 881 | 37-0| 36-8] 0-2|| 0-1| 0-0} 20 10 | 29-935 | 36-1] 35-9] 0-2] 01) 0-1] 23 18 | 30-026 | 30-0| 29-7| 0-3 0-1) 0-0) 16 20 051 || 28-5| 28-2| 0-3|| 0-0} 0-0} 18 22 060 | 37-0| 36-4| 0-6) 0-1| 0-1] 22 0 061 | 44-0| 42-9| 1-1} 0-1| 0-0| 24 2 048 || 48-8| 47-3] 1-5|| 0-0] 0-0| 2 4 || 036 || 47-8| 46-8] 1-0] 0-1} 0-0 6 || 028 || 41-5| 41-3] 0-2] 0-1] 0-1] 20 8 021 | 42-5| 42-1] 0-4|| 0-0| 0-0] 2 10 | 005 | 44-6] 43-6) 1-0/ 0-0/ 0-0 16 18 || 29-939 || 44-2] 43-5| 0-7] 0-3] 0-0} 20 20 928 || 44.8| 43-8| 1-0|| 0-3| 0-1] 22 22 || 916 || 49-0| 46-4) 2-6] 0-3| 0-3] 18 28 0 896 || 51-2| 48-2| 3-0|| 0-3] 0-1] 18 2 359 || 52-8| 48-9] 3-9] 0-3] 0-3] 18 4 842 || 51-6| 48-6| 3-0|| 0-2| 0-2] 18 6 831 | 47-0| 45-3| 1-7]) 0-2] 0-2] 18 8 841 || 45-7| 43-9] 1-8|] 0-3] 0-1| 16 10 849 || 44-5| 43-2] 1-3|| 0-1] 0-0] 16 18 || 29-890 || 39-8] 39-5| 0-3] 0-0] 0-0] 16 20 907 || 41-4| 41-0| 0-4 || 0-0| 0-0} 16 22 939 || 42-0| 41-7| 0-3|| 0-1| 0-0] 8 0 942 || 47-2| 45-7| 1-5} 0-1] 0-0] 6 2 925 || 51-0| 47-4| 3-6] 0-1| 0-1| 31 4 || 924 | 50-2| 47-5| 2-7 0-1] 0-1] 4 6 936 | 40-4| 40-0! 0-4) 0-2] 0-1] 18 8 970 || 38-5| 38-0] 0-5 || 0-0) 0-0} 26 10 971 || 37-7| 37-4| 0-3]} 0-0| 0-0| 24 18 || 29-941 || 33-3] 33-3] 0-0|| 0-1} 0-0 20 928 || 32-2| 32-1| 0-1] 0-1| 0-1] 17 22 959 || 41-8| 41-0| 0-8] 0-1| 0-1| 26 30 0 || 938 | 47-4| 46-6 0-8] 0-1] 0-1] 24 2 901 || 50-3| 48-5} 1-8|| 0-2! 0-1] 18 4 902 || 49-0| 47-0| 2-0|| 0-6| 0-3| 18 6 || 898 | 45-2| 44.0] 1-2] 0-4) 0-1] 22 g || sss | 40-0] 39-7] 0-3|| 0-2] 0-1] 16 10 881 | 37-9| 37-6| 0-3] 0-1] 0-0| 22 ) | 18 | 29-786 | 46-7| 44-9| 1-8 | 0-6/ 0-5) 18 20 | 785 | 46-7| 44-9] 1-8] 0-7| 0-3) 18 92 | 774 || 49-5| 47-6] 1-9)| 0-4) 0-3} 18 31 0 || 754 | 50-7| 48-5| 22] 1.5) 0-7) 18 2 725 || 52-1| 49-6| 2-5|| 2-2) 0-9} 20 | 4 702 || 51-7| 49-2| 2-5] 1-0] 0-4] 20 6 || 684 | 52-2) 49-8) 2.4] 1-9| 1-1] 18 g | 681 || 51-6) 49-6| 2-0|] 1-0| 0-4} 15 10 || 670 || 51-8| 49-6| 2-2] 1.0) 0-6} 18 293 29.644 || 51-9| 49-5| 2-4] 1-8] 0-3| 17 118 | 29-608 | 49-4| 47-2] 2-2| 1-7| 0-31! 20 | The direction of the wind is indicated by the number of the point of the compass, motions of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. reckoning N.= 0, E.= 8, S.= 16, W. = 24. The | DaAILy METEOROLOGICAL OBSERVATIONS, NOVEMBER 1—7, 1846. 401 THERMOMETERS. WIND. | Cloua Gott. || Bano- : eae ate an xe ea eos : re eg | ia oving 3 eave Species of Clouds and Meteorological Remarks. : - || Dry. | Wet. | Diff. a From | Son ad. h. in. | Field ao © ll tbs. | 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. scud; cir.-str.; scud on Cheviot ; clouds tinged 22 617 | 51-1] 48-1] 3-0] 1-0} 0-4] 18 | —:15: =e 9-0 || Cirro-strati and cirro-cumuli, © [red to E. 20 626 | 52-7] 49-1] 3-6]| 1-9] 0-9} 16 | 17:15:— 8-0 || Seud; cirri and cirro-strati. 2 599 || 54-0} 50-1] 3-9] 1-2) 0-8/ 16 || 16: —:— 9-0 Id. ; id. (2) 4 586 | 50-7| 47-8} 2-9} 24) 2-1} 16 ||/17:16:—| 9-5 Id. ; id. ; hazy round horizon. 6 598 | 51-0} 48-0} 3-0|| 1-6] 1-7| 16 ||}17:17:—-|) 9-5 || Scud and cirro-cumulo-strati. 8 585 | 50-3) 47-6] 2-7|) 1-7] 1-1] 16 9-0 Id. 10 570 | 50-4] 48-0} 2-4]) 2-2] 1-0] 16 || 10-0 Td. 18 || 29-619 || 51-3] 50-0] 1-3]| 1-5) 0-1| 20 ||17:17:—]| 7-5 || Scud and cirro-cumulo-strati. 20 659 | 49-2) 47-6} 1-6|| 0-1] 0-1} 23 | 18:18:— 6-0 Id. 22 693 || 48-0) 47-0) 1-0 || 0-1] 0-0) 16 |, 18:—:—|| 1-0 || Scud and loose cumuli, (0) 3 0 a ae 50-4| 2-9|/ 0-3) 0-1) 16 ||18:—:—|| 8-5 || Masses of loose cumuli near the hor. ; woolly cir.-str. 2 1 53-4| 49-6} 3-8] 0-4] 0-3] 16 || 9-8 || Thick cirro-stratus. 4 704 || 53-0] 49-0} 4-0} 0-5] 0-1) 16 |} —:18:— 10-0 || Id. 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:—}| 5-0 || Scud and cirro-cumulo-strati. »)) 10 654 | 53-0} 51-5] 1-5]) 1-8] 1-5] 18 3-0 Id. y 18 || 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. 22 731 || 52-7| 50-3) 2-4]] 1-7] 1-0] 16 2-0 || Clouds on horizon. fo) 4 0 i 55-8} 52-3| 3-5] 1-8] 1-3] 16 || 16:—:—|| 7-0 Scud, loose cumuli, and sheets of cirro-strati. 2) 2 13 | 56-0] 52-5] 3-5] 1-3) 1-1] 16 | 16:—:16 3-5 Id., id. ; woolly cirri. (0) 4 710 | 54:7} 51-6} 3-1]| 2-7} 0-9] 16 ||}17:—:—]] 10-0 Td. ; rain” 6 714 || 54-0] 52-0} 2-0}| 1-2] 0-8} 14 10-0 Td. 8 727 || 53-6] 52-2) 1-4]| 0-8] 0-2] 16 9-5 || Iad. 10 758 || 52-7} 51-9) 0-8]! 0-5] 0-0] 18 10-0 || Scud and cirro-strati; rain” 18 || 29-888 | 45-9] 45-5) 0-4]| 0-5] 0-1] 16 9-5 || Cirro-strati and cirrous haze ; lunar halo. - 20 922 | 41-5] 41-3] 0-2) 0-1} 0-1] O 4-0 || Cirri and cirrous haze; mist in the valleys. 22 935 || 46-4] 45-4} 1-0] 0-1) 0-0| 2 || —:—:16 4-0 || Woolly cirri. (0) 5 0 941 | 50-6) 49-0} 1-6] 0-1) 0.0| 4 || —:—:16 7-0 Id. (0) 2 928 || 52-6] 50-0} 2-6] 0-1] 0-1] 6 || —:—:18 5-0 Id. (0) ‘ 4 906 | 53-0} 50-6} 2-4)) 0-3) 0-5) 12 || -:—:18]| 9-0 Id. ; haze on horizon. (3) ( 6 899 || 49-4| 47-6] 1-8] 0-5] 0-3] 14 ||} 16:—:— 7-0 | Scud; cirro-strati. 8 897 || 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 || Seud; slight drizzle. 18 || 29-892 || 52-8] 51-3) 1-5|| 1-1] 0.9] 16 9-5 || Seud, cirro-strati, and woolly cirri; lunar corona. } 20 912 || 49-5) 47-7| 1-8} 1-3] 0-3] 16 || —:18:—]| 9-0 || Cirro-stratous scud ; woolly cirri and cirrous haze. 22 922 | 50-3| 48-0) 2-3|) 1-7| 0-3] 14 | 15:16:—J) 10-0 || Send; cirro-strati; cirrous haze. 6 4 ae ay Si E E 0-8; 0-1} 20 ||, —:16:—|| 10-0 || Cirro-strati and cirrous haze. : 9. 1-1] 0-2} 16 || —:17:—|| 9-8 || Cirro-strati and cirro-cumuli. 4 911 | 49-4) 47-4) 2-0) 1-5] 0-2} 2 |}14:17:—]| 9-0 | Thin scud; woolly cirri and cirro-strati. 4 ae ae Bye i 5 0 : 0-3] 12 9-0 || Cirro-strati; cirrous haze. i * 0 0-1) 8 9-8 Td. ; id. 10 926 || 45-6| 43-7] 1-9] 0.3} 0.2] 14 9-5 Id. ; id. * ee sa re sf 0-9} 0-1] 18 9-5 || Thick cirro-stratus and cirrous haze. ) ( +3) 0- 0-1) 0-1] 18 9-5 Id. 22 982 || 45-0} 43-8] 1-2]| 0-1] 0-0] 20 || —_: 20:—|| 7-0 Cirro-strati, cirro-cumuli, and cirri. 7 4 a one a8 ae Fie ae 0-2} 18 || 20: —:—|| 10-0 |; Patches of ragged scud ; dense cirro-stratus. ig f u *2|| 0-3] 0-3) 16 || —:22:—]|| 8-0 | Cirro-cumulo-strati. 4 || 30-012 || 51-2] 48-2] 3-0]| 0.4] 0.2| 99 || _:92:—|| 6-0 | dss haze round horizon. € 6 036 | 48-6} 47-2) 1-4] 0-1] 0-0} 18 9-8 || Seud and cirro-cumulo-strati. 8 056 || 48-1) 47-0] 1-1] 0-0] 0-0} 16 5-0 | Id. ; clouds breaking up. 10 071 | 48-6) 47-7) 0.9 | 0-1} 0-0} 24 10-0 Id. 224!| 30-174 | 50-7| 49-6! 1.11] 0.0] 0-0 10-0 || A uniform mass of cloud. 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, Se. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. MAG. AND MET. ozs. 1846. 51 402 Daity METEOROLOGICAL OBSERVATIONS, NOVEMBER 8—14, 1846. THERMOMETERS. WIND. Clouds, Maximum Se.: C.-8. :Ci.,|| Sky : Wet. | Dit. || foree 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 seud. Id. ; hazy on horizon. Thin misty seud. Id. Id. Mist, objects invisible at 100 yards. : Id. bobo DOPRNONO MWS OHH eE EHO, Anowooo o'2 bo ww 2 2 po Clear. a few patches of cloud to S. Id. ; id, Cirro-strati and haze on horizon. Haze on horizon. Id. ; slight fog coming on. Cirro-cumulo-strati. Seud and cirro-strati on S. and E. horizon ; misty. Cirro-stratous scud. Id. Id. Id. Id. Id. Id. Scud ; mass of cirro-stratus. id. ecoooe SeeseeseseS 9999999 Pa yar am I aN nF sy ye er a a as ag corr aon Scud and cirro-stratus. Id. Id. Td. Id. Tad. Id. Very dark. Id. Very dark. Homogeneous. Id. Id. Id. Id. : Id. 26 5 Id. 8 | Id. Ss re NS) Ne es po Hw oe wn awd eeseesoes fo } | | 40-0 The direction of the wind is indicated by the number of the point of the compass, reckoning N.= 0, B.=8, 8.=16, W.= 24. The motions of the three strata of clouds, Sc. (send), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Dairy METEOROLOGICAL OBSERVATIONS, NOVEMBER 14—21, 1846. 403 THERMOMETERS. WIND. Clouds, Gott. || Baro- Sas (3g: Ci ¥ Mean || METER Maximum el ‘al ae Species of Clouds and Meteorological Remarks. Time. |] at 32°. || Dry. | Wet. | Ditt.| forcein [Prom som Se 14, , 107. oa h. in. S C - Tbs. | lbs. pt. pt. pt. pt. 0—10. 14 23 || 30-028 || 40-6) 39-5} 1-1) 0-1} 0-0 10:0 || Homogeneous. 15 18 || 29-918 || 34-7) 33-9) 0-8) 0-4) 0-1] 14 2-0 || Patches of scud and cirro-strati. y 20 914 || 40-0] 38-2} 1-8] 0-1} 0-1} 2 7-0 || Cirro-strati and patches of scud. 22 908 || 42-5| 40-3| 2-2 || 1-8} 0-4) 16 || 14:16:—|| 3-0 || Loose seud; cirro-strati and woolly cirri. (Ss) 16 0 875 || 46-0} 43-0| 3-0} 1-3] 1-5) 16 || 14:—:—)|| 4-5 || Seud; cirro-strati and cirrous haze. (0) 2 836 || 46-9} 43-2) 3-7] 4.6] 2:3) 14 ]/14:—:—|| 7.0 Id.; woolly cirri and cirrous haze. (s) 4 783 || 45-2| 42.3] 2-9|| 2.4) 2-2) 14 | 14:—: 24 7-0 Id. ; id. 6 761 || 41-3} 38-8] 2-5 || 2.5] 0-7) 14 2-0 Id., and cirro-strati. 8 764 || 42-2) 39-8} 2-4]| 2-8] 1-8} 14 3-0 Id. 10 757 || 41-5| 39-2) 2-3]| 3-2) 0-3) 14 5:0 || Seud and cirro-strati. 18 || 29-524 || 44-3] 42-9] 1-4] 1-6| 0-2} 14 9-0 || Thin clouds; slight shower. 20 502 || 45-6| 43-9! 1-7]| 0-4] 0-2| 20 10-0 || Patches of seud; dense cirro-stratus. i 22 491 || 45-3) 43-8) 1-5|| 1-9} 0-3| 18 10-0 Id. ; id. 17 0 448 || 48-7} 46-6} 2-1] 1-9] 0-8} 16 | 16: —:—|| 10-0 || Seud; dense mass of cirro-stratus. -. 2 416 || 48-8] 46-7| 2-1] 1-8] 1-7| 16 ||} 17:—:—|| 10-0 IGE id. ; drops of rain. 4 420 || 52-6| 50-4} 2-2] 2-0] 0-9) 17 | 18:—:—/| 10-0 Tdks id. 6 456 || 50-7) 49-0) 1-7] 1-0] 0-2} 18 9-9 || Seud and cirro-strati. 8 464 || 48-6) 47-1) 1-5] 0-3) 0-2| 18 3-5 Id. ; auroral arch. 10 480 || 48-0} 47-0} 1-0 || 0-6| 0-4| 18 9-8 || Scud; slight drizzling rain. 18 || 29-455 |) 45-3] 44-0] 1-3] 0-7] 0-2) 26 1-0 || Masses of seud. 20 455 || 45-0| 43-8] 1-2] 0-6] 0-3) 20 3-0 || Send. 22 441 || 46-6| 44-9| 1-7] 0-6} 0-4] 18 0-5 || Patches of seud ; cirro-strati and cirrous haze on hor.© 18 0 420 || 50-7| 48-0) 2-7) 1-6] 1-3) 18 || —:20:—|! 4.0 || Cirro-cumulo-strati ; cirro-strati. (0) Pp) 383 || 51-5] 48-3] 3-2]| 0-9] 0-7) 18 |} 20:—:— 9-0 || Seud ; id. 4 332 || 50-7| 47-9| 2-8] 1-7| 0-5| 16 || 20:—:—]| 9.0 Id. 6 309 || 50-0} 47-1} 2-9]] 1-3| 0-8| 16 7-0 Td. 8 312 || 49-5] 47-2) 2-3]! 1-5] 1-0] 18 8-5 Id.; drops of rain. 10 316 || 48-6] 46-3] 2-3 || 0-9) 0-2| 18 8-5 Id. 18 || 29-254 || 45-7| 44-3) 1-4]! 1-4] 1-0] 18 10-0 || Send; slight drizzle. 20 270 || 44-3} 43-3] 1-0|] 1-4] 0-3] 18 | 22:—:— 3-5 Id. ; cirro-strati. y 22 287 || 46-1} 44-6) 1-5]} 1-2] 0-8} 20 ||} 21:—-:—|| 2.5 || Seud and loose cumuli. 19 0 300 || 49-2} 46-0} 3-2] 1-8] 2.6) 20 || 22:—:— || 1.0 Id. (0) o) 310 || 49-7} 45-1] 4-6} 2-9] 1.2) 21 || 22:—:22]| 2.0 Id. ; mottled cirri. (0) 4 314 || 47-2| 44-1] 3-1]| 2-3] 0-7| 18 1-5 || Patches of scud ; woolly cirri. (0) 6 304 |) 45-1] 43-3] 1-8 || 1-3] 0-3) 18 3-0 || Scud; cirro-strati. 8 273 || 47-8] 45-5] 2-3]| 2-0] 1-1] 18 1-0 Id. 10 256 || 49-4| 46-5] 2-9|| 2-2} 3-3] 18 3-0 Id.; a flash of lightning to SW. 18 |/29-101 |) 49-6] 47-0| 2-6]| 4.2| 0-6} 15 9-0 || Scud; cirro-strati. 20 || 29-014 || 48-8) 46-5] 2-3 || 1-8] 2-7| 16 10-0 Id. ; id. ; drops of rain. 22 ||28-916 || 48-6) 46.3/ 2-3]| 3-4] 2.2] 15 |!14:—:—|]] 10.0 Id. ; ides rain?” 20 0 792 || 49-0] 47-0) 2-0]| 5-2] 2.5] 14 |] 14:—:—]! 10.0 Td; id, 2 668 || 51-0| 48-0} 3-0] 4-4] 2-5] 14 ]17:15:—|| 9.8 Id., two currents. 4 529 || 49-8} 46-3] 3-5] 3-8] 2-0] 13 || 14: —- || 10-0 Td. 6 372 || 47-9| 45-8} 2-1]) 4-5] 4-1] 15 10-0 Id.; slight rain. 8 286 || 50-0} 49-0] 1-0]) 5-1| 4-6| 18 10-0 Id. ; id. 10 544 || 48-6] 45-1] 3-5 |) 3-2] 1-0] 20 10-0 Id. 18 || 28-965 || 44-9} 42-5! 2.4]/ 5.8] 2.2] 19 3:0 || Scud. 20 || 29-024 |) 43-1} 40-5) 2.6] 2-7| 1-7] 20 1-0 || Patches of scud ; cirro-strati. 22 095 || 44-6) 42-2) 2.4]| 1-6] 0-9} 20 | —:—:21 3-0 || Woolly cirri; scud to W.; scad and cir.-str. on hor.© at 0 148 || 46-9) 43-7) 3-2] 1-7] 0-9| 21 |99:—:—]| 4.5 | Scud ; woolly cirri and cirro-strati. (0) 2 155 || 46-3| 42-8) 3.5 || 1-6| 0-6) 19 | 21:—:—|| 5-0 || Scud and cumuli; woolly cirri. 0} 4 144 || 47-2) 44-2) 3-0] 0-7) 0-3] 18:]] 20:—:— 8-0 || Scud. 6 124 || 42-9) 41-9} 1-0] 0-4] 0-5] 16 4.0 Id. and cirro-strati. » 8 104 || 44-0} 42-6] 1-4]| 0-5| 0-2] 18 10-0 || Dark; rain? The direction of the wind is indicated by Nov. 17418, Observation made at 18h 15m, motions of the three strata of clouds, Sc. (scud), C.-s. (cirro: the number of the point of the compass, reckoning N. = 0, H. = 8,8. = 16, W. = 24. stratus), and Ci. (cirrus), are indicated in a similar manner. Noy. 20%. Additional observations of the barometer, 74 0m, 28:304; 7% 50m, 28-267; Sh Om, 28-286; Sh 40m, 28-387. The 404 DAILY METEOROLOGICAL OBSERVATIONS, NOVEMBER 21—28, 1846. THERMOMETERS. WIND. . oe eee Se.iC-0:Ciy| Sk meen, HEEES pani ee ae rrom| OviNg Nees re a. Species of Clouds and Meteorological Remarks. from 1, 10, | i er ——— a et | a. oh. in. | ee ° ° lbs. | Ibs. | pt. |] pt. pt. pt. 0—10. } 2110 29-047 || 43-4) 42-5/ 0-9 || 0-6) 0-3] 18 5-0 || Seud and cirro-strati. 223|| 28-965 || 40-2] 38-7] 1-5]) 0-9| 0-2) 20 || 24: 22:— 3-0 || Scud; sheets of cirro-strati. 22 18 || 29-379 || 37-8] 35-6] 2-2] 1-7| 0-5] 20 0-5 || Haze and cirro-strati on horizon. 20 414 || 34-5] 33-5] 1-0] 0-5] 0-3) 19 0:3 Id. 22 || 444 || 36-0| 34-7 1:3)]0-35), Ol) Da i— = 27 2.9 || Woolly cirri; cirro-strati on horizon. (0) 23 0 || 441 |} 41-2} 39-3] 1-9 Qe} O-dul) 160 — 26. —— 9.9 || Cirro-cumulo-strati and cirro-stratus ; cirrous haze. 2 |! 423 || 43-2] 41-2} 2-0|| 0-1} 0-1) 17 10-0 Dense mass of cirro-stratus. 4 401 || 43-4| 42-1| 1-3 || 0-2| 0-1] 16 ||: 26:—|| 10-0 || Cirro-stratus ; drops of rain. 6 384 || 42-0] 41-2] 0-8] 0-1] 0-1} 15 10-0 Id. 8 || 370 || 42-3] 41-4] 0-9] 0-1) 0-0 10-0 Id. 10 || 320 || 42-3] 41-4] 0.9} 0-0) 0-0 10-0 Id. ; rain”? 18 |, 29-177 || 48-0| 47-6] 0-4|, 0-3 0-0 9.0 || Seud. 20 || 204 || 50-4] 49-8| 0-6|| 0-4] 0-1] 18 | 22:—:—y] 10-0 Id. 22 | 228 | 51-2| 50-5] 0-7|| 0-1| 0-4| 19 |/23:—:—} 10.0 || Id. 24 0} 248 || 53-2] 52.0} 1-2|) 0-5) 0-1] 22 | —:23:— 6-0 || Cirro-cumulo-strati and cirro-strati. (0) 2 262 || 52-4} 50-2| 2.2|| 0-3| 0-3| 21 || —:22:—|| 8-0 Id. 4 283 || 50-7| 47-0| 3-7|} 0-4] 0-3} 20 |} —:22:— 5-0 6 || 312 || 45-6| 42-9} 2-7} 0-3) 0-0) 18 0-5 || Clouds on horizon. »)) 8 369 || 40-3] 39-3] 1-0] 0-1) 0-0} 18 0-2 Id. ») 10 359 || 38-0] 37-8] 0-2]] 0-2} 0-0] 17 1-0 || Cirro-cumulo-strati to SW. y 18 || 29-323 || 42.0] 41-3] 0-7] 0-5} 0-1) 24 9.5 || Seud. ; 90 || 289 || 42-5| 42-0] 0-5 || 0-3| 0-1| 16 |}22:—:—]| 9-5 || Id.; cirro-stratus. 22 273 || 44-0| 43-4] 0-6] 0-1] 0-1} 25 9-8 || Id.; id. 25 0 240 || 43-2] 42-8| 0-4] 0-1] 0-0) 6 9.9 || Mass of cirro-stratus. 2 || 185 || 44-0} 43-4] 0-6] 0-1} 0-0 10-0 GUE misty on horizon. 4 | 131 || 43-6| 43-0] 0-6|} 0-1} 0-1] 10 10-0 || Patches of seud; dense uniform eirro-stratus. 6 088 || 42-8] 42-6] 0-2} 0-1} 0-0} 3 10-0 || Seud and cirro-strati; rain! 8 || 29-016 || 43-4] 43-0] 0-4] 0-1) 0.0 10-0 Id. 10 || 28-952 || 43-7] 42.9] 0-8] 0-1] 0-0] 2 10.0 || Seud and cirro-strati ; rain’ 18 || 28-829 || 44-3] 43-1] 1-2] 1-0] 0-4] 30 10-0 || Rain! 20 || 851 || 43-7| 42-5) 1-2]| 0-7] 0-4) 30 10-0 Id. 22 886 || 43-8] 41-4 2.4|| 0-7| 0-6| 28 || —:30:—]] 10-0 || Cirro-stratous scud and cirro-stratus. 26 0|| 916 || 45-2] 41-8] 3-4|| 0-5} 0-3) 28 10-0 Id. 2 925 || 46-0} 42-7] 3-3) 0-6] 0-5] 28 10-0 Id 4 945 || 45-6| 42-7| 2-9]| 0-6] 0-5] 28 10-0 Id. 6 || 28-983 || 44-5] 42.5] 2-0|| 0-5| 0.4} 26 : 10-0 Id. ; rain! 8 | 29-010 || 43-8] 42-4] 1-4]] 0-5| 0-4) 28 10-0 Id 10 027 || 44-3] 42-9] 1-4]| 0-6] 0-4] 28 10-9 || Clouds broken. | | 18 || 29-137 || 43-0] 42-5| 0-5 || 1-6] 1:5) 0 10-0 || Rain! 20 || 185 || 43-0] 41-8] 1-2|| 2-4] 1-9} 0 10-0 || Showers. 22 242 || 43-7} 40-9) 2-8] 3-1] 1-6] 0 2:—:—|| 10.0 || Scud; cirro-strati. 27 0 274 || 40-7] 38-8| 1-9|| 4-0] 0-7} 0 || 0:—:—] 9-9 || Id.; id.; rain” 2 287 || 41-0| 39-2| 1-8|| 3-0] 1-0] 0] 0:—:—] 95 | Id; id. ; cumuli on N. horizon. 4 299 || 38-0| 36-6] 1-4] 3-8] 2:4] 0 |) 0:—:—]) 9-0 |) Id; frequent showers of drifting rain and hail. 6 325 || 38-5) 36-3] 2-2 2-6| 0-6) O 6-0 Id. s | 334 || 37-5] 35-0| 2-5] 1-8] 1-2] 31} 1: 1:—| 4.0 || Id. and cirro-cumulo-strati. ») 10 338 || 36-4] 34-0| 2-4]| 1-5] 1-0} 30 | 2.0 || Scud and cirro-strati on horizon. »)) | | 18 || 29-270 || 28-6] 27-3] 1-3] 1-8] 0-1} 26 1-0 || Clouds on horizon. 20 || 279 || 24-9] 24-8] 0-1] 0-3] 0-1) 20 1-0 Id. 22 |, 305 || 29-8] 28-0] 1-8]) 0-2] 0-2) 29 | 0-7 Id. 28 0 || 319 || 33-0| 32-2] 0-8] 1-0] 0-7| 31 | 9-8 || Seud; snow”? 2 330 || 33-5| 32-9] 0-6|| 0-7| 0-2] 20 | 10-0 || Id.; showers of snow. [hail. 4 365 || 36-2| 33-6| 2-6] 0-3/ 0-2| 0 | 9. --. || 10.0 || Scud and loose cumuli ; occasional showers of snow and 6 427 || 37-7' 36-0! 1-7]| 3-3! 1-2! 30 | 6-0 Cirro-strati; cirri and cumuli; lunar corona and portion of a halo, } : Nov. 264 1 25™. A portion of a halo 23° vertically above the sun, with the horns turned from the sun. Nov. 264 43%. New silk put on wet thermometer. Nov. 284. ‘Thunder said to have been heard to-day. ‘T'wo flashes of lightning were seen by an individual at Sprouston (6 miles E by N. from Makerstoun.) There were two or three showers of a sort of hail at Makerstoun. DatLy METEOROLOGICAL OBSERVATIONS, NOVEMBER 28—DECEMBER 5, 1846. 405 THERMOMETERS. | WIND. Clouds Bott: ee - \|Se.: C.-s: Ci. Sk 4 Mean || METER |) Maximum asa el ay 2 a Species of Clouds and Meteorological Remarks. Time. || at 32°. Dry. | Wet. | Diff. | force in |Prom|| ee clouded. 5 14, | 10™, we a bh in. ° ° ° || is. | Ibs. | pt. || pt. pt. pt. || 0-10. 28 8 || 29-469 | 36-6] 35-2] 1-4|| 2-7| 0-7] 29 | 0-2 || Clouds on horizon. ») 10 500 | 36-0| 35-8} 0-2] 1-3) 0-3) 2 1-5 || Scud and cirro-strati. y 223) 29.571 32.6| 31-8! 0-8] 2:9| 1-0] 30 ||30: 2:—|| 60 | { Daeneniae t, nimbi. About an inch of snow has fallen 2918 || 29-756 || 31-0| 30-6| 0-4|| 2-2] 0-2} 31 | 6-0 | Slight snow. 20 778 || 30-6) 30-2) 0-4)| 0-2| 0-2} 30 9-8 || Scud and cirro-strati. 22 812 || 30-9| 30-0} 0-9|| 1-0| 0-5} 29 | 1:—:—}| 8-0 || Scud; shower of snow; snow 63 inches deep. 30 0 823 | 32-6| 30-7} 1-9] 0-7| 0-2| 30 1:—:— 7-0 Id. 2 808 || 31-7| 29-3| 2.4] 0-5) 0-3} 18 | 1:—:—j| 4-0 || Id.; woolly cirri; slight showers of snow. (0) 4 811 || 28-2) 26-7| 1-5] 0-2} 0-1] 19 | 5-0 || Woolly cirri and cirrous haze. 6 793 || 26-5! 25-5) 1-0]) 0-3/ 0-1} 16 | 8-0 || Cirro-cumulo-strati. 8 759 || 28-8| 26-6| 2-2]) 0-4] 0-3} 22 || —:28:—| 10-0 Id. ; cirrous haze. >} 10 707 || 30-4| 28-0) 2.4]] 0-8} 0-5| 22 9-5 || Cirro-strati and cirrous haze. } 18 || 29-503 || 36-0| 35-0} 1-0] 2-8} 0-8| 20 | 10-0 || Cirro-stratus. 20 469 || 36-6| 35-9| 0-7) 2-4| 0-8| 21 10-0 Td. 22 429 || 37-7| 37-0| 0-7} 1-3) 1-0} 20 | 9-9 || Seud and cirro-stratus. 10 384 || 40-2] 38-7] 1-5|| 0-8| 0-4) 20 |—:26:—] 7-0 Cirro-cumulo-strati. (=) 2 355 || 40-3) 38-4] 1-9] 0-7] 0-2} 20 | 0-5 || Cumulo-strati on E. horizon ; cumulo-strati. (0) 4 326 || 39-1) 37-0| 2-1} 0-3] 0-3) 24 | 0-5 | Cirro-strati on horizon ; cumulo-strati to NE. 6 348 || 36-8} 35-2] 1-6|| 0-3) 0-2} 25 0-2 Id. »)) 8 354 || 33-5] 31-8] 1-7] 0-1] 0-2} 29 0-0 || Very clear. ») 10 360 || 31-2| 29-6] 1-6} 0-3| 0-1} 22 0-5 || Cirro-strati on E. horizon. ») 18 || 29-319 || 22-8) 23-0 0-4| 0-0} 18 3-0 || Cirri ») 20 |, 317 || 21-3) 22-0) --- || 0-0} 0-0 2-5 Id. 22 311 | 19-5] 19-7] --- || 0-1) OL] 15 1-0 Id. fo) Bei0 311 || 26-3] 24-5] 1-8] 0-1] 0-1] 20 0-2 || Cumulo-strati and haze on E. horizon. (0) 2 297 || 27-5| 26-0) 1-5|| O-1| 0-1] 21 0-5 || Cumulo-strati. (9) 4 298 || 24-7) 24-0] 0-7]| 0-1; 0-0 0-5 || Cir.-str. to S. ; cum.-str. on E. hor. ; haze on horizon. 6 298 || 18-5] 18-5] --- |] 0-1} 0-1] 15 0-5 Id. »)) 8 328 || 16-8] 17-2) --- || 0-1} 0-1 20 0-2 Id. »)) 10 331 || 16-0| 16-0 0-1) 0-0} 21 0-0 || Very clear. ») 18 || 29-339 | 19-0} 19-0) --- || 0-0} 0-0 0-2 | A few variable patches of cirri to E. »)) 20 350 || 24-0} 23-2) 0-8] 0-2} 0-2) 14 1-0 || Cirri and cirro-strati on horizon. } 22 375 || 28-6] 27-4) 1-2] 0-1) 0-0 —:—:29 2-5 || Woolly cirri; cirro-strati and haze on horizon. 0) 3.0 389 || 34-4} 31-8] 2-6]| 0-4] 0-2) 27 || —:—:29 6-0 rds cumulo-strati on E. horizon. © 2 418 35-3] 34-2] 1-1] 0-4] 0-1] 27 || 27: 0:— 9-5 Send; cirro-stratus; nimbus to NE.; shower of snow at 1) 45m, 4 447 || 35-4| 34-6| 0-8]| 0-4] 0-2) 28 ||28: 0:—/|} 10-0 | Id.; id.; slight shower of sleet. 6 479 || 35-2| 34-7| 0-5]| 0-4| 0-4| 29 8-5 Id. 8 501 || 36-0| 33-8] 2-2] 0-8) 0-6) 28 || 0:—:—]} 7-5 || Id.5 cirro-stratus. ») 10 550 || 36-2) 33-5] 2-7|| 0-9} 0-8) 28 1:—:— 7-0 Id. } 18 || 29-669 || 30.6} 29-2] 1-4|| 0.6] 0-2} 27 6-5 || Cirro-strati on horizon. ») 20 699 || 28-7] 27-8] 0-9]| 0-2] 0-1| 26 1-0 || Scud to SE.; cirro-strati on horizon. ») 22 726 || 31-3] 30-3} 1-0]| 0-4| 0-3| 28 0-7 || Bank of cumulo-strati and cirro-strati to E. and SE. © 40 764 || 33-5] 31-0] 2.5]/ 0-5] 0-4| 29 | —:—: 1 5-0 || Wool. cirri and cum.-str. ; cum.-str. and haze on E. and 2 761 || 33-8} 30-6| 3-2] 0-4] 0-1] 28 || 0-5 || Cirro-strati and haze on horizon. © [S. hor.© 4 786 || 31-7} 29-3} 2-4]! 0-1] 0-1} 18 0-5 Id. 6 801 || 23-8) 22-9) 0-9] 0-1) 0-0) 18 0-5 Id. 8 801 || 23-9] 23-7} 0-2]| 0-1| 0-0} 20 0-5 || Clouds to N. »)) 10 795 || 22-5} 22-0] 0-5]| 0-1] 0-0| 20 9-5 || Sky nearly covered with cirro-cumulo-strati. } 18 || 29-648 | 35-4] 32-6] 2-8]| 0-2] 0-0} 23 10-0 || Cirro-stratus. 20 599 || 36-1] 35-0} 1-1]| 0-2} 0-1} 24 10-0 Id. ; rain”? 22 540 | 39-3) 38-0} 1-3] 0-3| 0-4} 20 | 21:—:—]| 10-0 || Seud; cirro-stratus. 5-0 464 || 42-0| 40-6} 1-4]] 0-8] 0-7] 20 || 21:—:—J]] 10-0 || Id.; id. 2 378 || 42-0/ 40-9| 1-1] 1-4] 0-8} 20 | 24:—:27]] 9-5 || Misty seud; woolly and mottled cirri; cirro-strati. 4 373 || 43-0] 41-9] 1-1] 1-3! 0-2! 18 | 24:—:—]] 10-0° || Scud; slight showers. 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. (seud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Dec. 44. A new vane, composed of oiled silk stretched on a light frame of wood, erected instead of the turkey-feather one. Dec. 4" 185. Observation made at 18) 8™, MAG. AND MET. obs. 1846. 5K 406 Daity METEOROLOGICAL OBSERVATIONS, DECEMBER 5—12, 1846. THERMOMETERS. WIND. Clouds bea mma | Maximum Se.: C.-s. Ci, Sky Scecies of (Clouds aad’ M sae Pe Naga Dry. | wet. | Dist faecal next moving lalenaed Species of Clouds and Meteorological Remarks. | 1. ) 10m, a oh. in. 2 2S = Tbs. | Ibs. | pt. |] pt. pt. pt. |} O—10. 5 6 || 29-358 || 39-8| 37-5| 2-3]] 0-7| 0-2) 22 2-0 || Cirro-strati. 8 378 || 36-9} 35-5] 1-4] 0-2] 0-1] 22 0-5 || Cirro-strati and haze round horizon. »)) 10 397 || 38-2] 36-0| 2-2] 0-4) 0-2| 24 8-0 || Cirro-cumulo-strati. 224) 29.566 || 37-2| 34-5} 2-7 || 0-7) 0-5) 28 1-0 || Seud near horizon. 6 18 || 29-848 || 37-0| 34-4) 2-6]| 1-9} 0-7] 29 8-0 || Cirro-cumulo-strati and woolly cirri; lunar corona. }- 20 888 || 37-5| 34-7| 2-8] 2-3] 0-6] 29 |}—: 0:— 9-0 || Cumulo-strati; scud to E. 22 934 || 38-7| 35-7| 3-0|| 1-3| 0-5] 30 }—: 1:—] 9-0 Id. ; cirro-strati. 7 01} 968 || 38-3] 36-0) 2-3 || 0-4] 0-1} 27 2-5 || Woolly cirri, cirro-strati, and cirrous haze. (s) 2 977 || 39-6| 37-2| 2-4|| 0-3) 0-2| 30 ||—:—: 1] 8-0 || Woolly and mottled cirri; cirro-strati. 0} 4 || 29-999 || 38-7} 36-2| 2-5|| 0-3| 0-0) 26 10-0 || Cirro-strati, cirro-eumulo-strati, and cirrous haze. 6 || 30-014 || 37-0} 35-3) 1-7]| 0-2) 0.0) 22 | 10-0 || Cirro-stratus. 8 048 || 35-1| 33-9] 1-2]} 0-1] 0-1] 20 3-0 || Clouds on horizon ; stars dim. 10 060 || 33-0} 32-0} 1-0|| 0-1] 0.0} 24 1-5 Td. > | 18 | 30-089 || 36-0} 35-5| 0-5|| 0-0) 0-0 10-0 || Seud. R 20 115 || 36-6} 36-0) 0-6] 0-0) 0-0} 20 10-0 Id. 22 146 || 38-0} 37-4] 0-6)] 0-1) 0-0} 16 9-8 || Scud and cirro-strati. 8 0 148 || 40-7} 39-8] 0-9]| 0-1] 0-1} 22 9-9 Id. 2 123 || 42-8) 41-6} 1-2] 0-1] 0-1] 22 9-9 Id. 4 132 || 41-8| 40-9] 0-9] 0-0} 0-0] 20 | 28: 28:—!/| 10-0 Td. 6 | 137 || 40-7} 39-6) 1-1|} 0-1] 0-1] 24 | 9-8 Id. 8 | 138 || 40-2] 39-1] 1-1] 0-1] 0-0) 22 | 10-0 Id. ; dark. 10 |) 135 || 38-8] 37-7| 1-1|| 0-2| 0-1} 20 | 85 || Id. ; stars dim. 18 || 30-076 || 41-0] 39-2} 1-8]| 0:2) 0-0} 24 10-0 || Thick seud. 20 070 || 40-6| 39.0| 1-6}| 0-5| 0-1) 24 10:0 || Id. 22 059 || 41-9) 41-1} 0-8]| 0-2] 0-1} 20 || 0:—:—}] 9-5 || Send. 9 0 || 30-030 || 40-6] 38-8) 1-8]| 0-2} 0-2| 22 | 3-0 || Woolly cirri; bank of cirro-strati to E. (0) 2 || 29-998 || 44-6| 42.2] 2.4]) 0-2] 0-1| 22 | —: 0:—] 8-0 || Cirro-cumulo-strati; woolly cirri. e 4 || 962 || 42-4] 40.2] 2.2|| 0-3] 0-3) 24 | 0: —:—|| 7.0 || Scud. 6 937 || 36-5] 35-6| 0-9] 0-3| 0-1} 15 | 0:5 || Clouds on S. horizon. 8 903 || 37-0] 36-3} 0-7|) 0-2) 0-2] 25 | 0-2 |) Clouds on horizon. 10 866 || 38-8| 37-8] 1-0]] 0-2] 0-2} 22 | 0-5 Id. ; auroral arch to N. 18 || 29-555 |) 45-8] 43-8| 2.0]] 1-3] 0-8} 24 | | 3-0 | Seud ; in passing over the moon it produces a coloured 20 || 555 || 39-4] 38.4] 1-0] 1-9| 0-6) 0 10-0 | Scud; shower at 198 45™. [corona. }- 22 564 || 38-8] 36-6] 2-2]| 1-2] 2:0} 0 || 0:24:—| 9-0 || Id.; cirro-cum.-str.; ragged cum. on N. and E. hor. 10 0 | 573 || 37-7| 34-8] 2-9]) 1-9| 1-9] 31 || :28:—]| 8-5 || Cirro-cumulo-strati and cirro-strati; loose scud. 2 574 || 36-1] 32.4] 3-7]| 1-3] 0-6} 31 |31:28:—)| 8-0 || Seud; cirro-cumulo-strati; cum. on N. and E. hor. 4 || 560 | 33-7| 29-5| 4.2]} 2-0] 2:0} O || 0:—:—]) 4-0 || Scud and cumuli. 6 || 569 || 29-2] 26-6] 2-6]| 2-8] 1-0] 30 || 0-5 || Clouds on horizon. 8 560 || 28-2| 25-6] 2.6] 2-5] 1-5) 30 | 0-5 Id. 10 545 || 27-8| 25-2} 2-6]| 2-8] 1-2] 30 0-2 Id. 18 || 29-531 || 29-2) 26-6] 2-6) 2.4) 1-0) 29 | 5-0 || Cirrous haze over the sky; a sprinkling of snow on 20 || 513 || 27-9] 25-4) 2-5 || 2-5) 0-6| 28 7-0 || Cir.-str. and cir, haze ; cum. on hor. }- [the ground. } 22 || 484 || 28-4] 26.0] 2.4]) 1.8] 3-3] 27 | 7-0 || Woolly cirri and cir.-str. ; seud and cum. on N. and E. 11 0 492 || 29-0] 27-4] 1-6]| 2-9) 1-2) 29 |} —: 4: 4] 8-0 Id. ; snow!”? @ hor. © 2 472 || 30-2 | 27-4| 2-8]| 2-2] 1-1| 29 | 0:—: 4 8-0 || Seud; woolly cirri; cirro-strati. 4 469 || 29-4) 26.8} 2-6) 1-6] 1-3) 29 | 0:—:—) 8-5 || Masses of send, cirro-strati, and cirri. 6 I 476 || 29-8| 27-6] 2-2|| 0-9] 0-5} 28 9-0 || Scud and eirro-strati. 8 | 491 || 30-1] 27-8} 2-3 || 1-7] 0-8) 29 3-0 Id. 10 505 || 32-0| 29-5) 2-5]| 3-5 2.0 | 30 9-5 Id. 18 || 29-575 || 30-9} 29.9} 1-0|| 4-7] 1-1| 30 10-0 || Heavy shower of snow. 20 | 580 | 32-3] 30-5] 1-8) 1-3] 1-2) 30 10-0 || Cirro-str. and cir. haze ; occasional showers of snow. } 22 || 625 || 32-3) 31-3] 1-0|| 1-0] 0-6| 30 9:9 Id. ; id. 12 0 647 | 31-9) 30-6] 1-3) 1-5} 0-5) O 10-0 || Snows 2) 627 | 31-4! 29-2} 2.2/0.9} 0.6! 30 | 2:—:—! 4.0 || Seud and loose cumuli; snow about 43 inches deep. | 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. Dar1Ly METEOROLOGICAL OBSERVATIONS, DECEMBER 12—19, 1846. 407 THERMOMETERS. WIND. Clouds, Gott. || Baro- aaa Se. : a: Ci.,|| Sky Mean || METER z ; louded. Species of Clouds and Meteorological Remarks. Time. || at 32°. || Dry. | Wet. |Ditt.| force in [From ™EvIRE _ |cloude ei 14, | 10=, @ | in. C G S Tbs. | Ibs, pt. pt. pt. pt. |) 0—10. 12 4 || 29-626 |) 31-0} 28-6] 2-4|| 0-9| 0-6} 29 || 1:—:—|| 8-@ |] Seud and cumuli. 6 625 || 29-4] 27-4] 2-0)! 1-3) 1-0) 28 2-0 id. 8 654 || 29-0| 27-0} 2-0) 1-5] 0-9| 29 1-0 || Patches of seud. 10 657 || 28-6| 26-6} 2-0 | 1-5) 0-6} 30 1:0 || Clouds on horizon. Bop ee tes} | ee gene!) O=1 | 23 0-2 || Clouds on E. horizon. ») 20 359 || 24-7) 22.7] 2.0] 0-1) 0-0] 20 1-0 || Bank of cirro-strati on E. horizon. »)) 22 355 || 27-2) 25-0| 2-2) -.. | 0-4) 28 || O:—: O]| 4.0 |) Scud and woolly cirri; cumuli on horizon. (0) 14 0 343 || 28-6| 26-4] 2-2)! -.. | 0-5) 27 || —:30:—]| 4-0 |! Woolly cirro-strati; cumulo-strati on horizon, {O) 2 3a) || 29:7 | B72) Dailies Ovo.) 28-\|— 130 2 — 2-5 the cumuli and nimbi to E. © 4 | 305 || 29-2) 26-3) 2-9] ... | 0-2] 28 2-5 Id. ; id. 6 299 || 29.2) 26-6 | 2-6 || --- | 0-4) 28 0-5 || Clouds near horizon. 8 300 || 28-8} 27-0); 1-8] .-- | 0-5] 28 2-0 Id. 10 294 || 26-6] 24-9; 1-7]| --- | 0-5} 28 0-5 Id. 18 || 29-256 || 30-3} 28-3] 2-0] 1-0) 1:0} 0 9-8 || Seud; snowing. 20 288 || 29-0| 28-0} 1-0]/ 1-0) 0-3) 0 9-8 Td. i 622 360 || 29-2} 28.4! 0-8]] -:- | 0-2] 31 10-0 || Shower of snow. J15 0 397 || 31-6] 30-3] 1-3)| --- | 0-2} 28 || 0:—:—|| 7-0 || Scud and nimbi; occasional showers of snow. 2 409 || 28-3] 27-4| 0-9]/ 0-2| 0-1] 28 2-0 || Scud to S. and E. (0) 4 411 || 29-0} 27-4) 1-6]| 0-6) 0-3] 27 2-5 || Cumuli, cirro-strati, and haze on E. horizon. 6 426 |) 30-6| 29-5| 1-1]] 0-9| 0-8) 28 1-0 || Clouds on horizon. 8 441 || 31-0] 29-8} 1-2]) 2.2) 1-2] 28 0-2 Id. 10 459 |, 32-0] 30-6| 1-4]) 1-8) 0-8] 0 2-0 Id. 18 || 29-502 || 30-2] 28-2] 2-0}! 2.3) 0-8] 28 0-5 || Clouds on horizon. } 20 517 || 31-2] 28-7] 2-5]] 1-2| 0-5} 28 5-0 || Cirri and cirro-strati. } 22 540 || 30-6} 28-0! 2-6|| 0-7} 0:4] 27 2-0 || Scud and cirro-strati on horizon. (0) 16 0 541 || 32-1| 29-5) 2-6|| 0-5| 0-3} 27 2-0 Id. {o) 2 523 || 34-8] 31-6| 3-2]! 0-3| 0-2] 28 || —: 1:— || 7-0 || Cirro-cumulo-strati. 4 496 || 34-7] 31-8} 2-9} 0-3| 0-2] 24 10-0 || Mass of cirro-stratus. 6 487 || 32-8} 32-2] 0-6) 0-3] 0-1] 24 10-0 || Snowing. 8 456 || 32-5] 32-1/ 0-4]| 0-1| 0-0] 20 10-0 Id. 10 436 || 31-6] 31-6} --- || 0-0} 0-0] 20 10-0 || A few flakes of snow falling. 18 || 29-447 || 24-8} 23-6| 1-2] 0-1} 0-0 0-5 || Clouds on S. horizon. 20 448 || 20-8} 19-7! 1-1]) 0-1} 0-1] 23 1-0 || Bank of seud and cirro-strati to N. »)) 22 478 || 29-0} 28-0| 1-0]! 0-1} 0-1} 28 |31:—:— 8-0 || Scud. 17 0 501 || 33-3} 31-1] 2-2|| 0.8| 0.4] 28 0:—:— | 3-0 Id. (0) 2 565 || 34-6| 32-6] 2-0] 1-5) 0-3) 0 || 1:—:—]| 10.0 |] Heavy snow showers since 1». 4|| 643 | 322|......|- | ialoi|}a1] 3-0 || Cumuli and nimbi. 6 713 || 29-7) 27-8) 1-9} 0-2) 0-1} 2 3-0 || Scud and cumuli. 8 781 || 27-4) 26-7) 0-7) 0-5) 0-0} 22 1-0 || Clouds on E. horizon. 10 825 || 25-6| 24-8) 0-8) 0-1 0-0} 18 1-0 Id. 18 || 29-864 || 13-0} 13.0] --- | 0-0} 0-0] 18 1-0 || Cirro-strati and thin haze. 20 852 || 18-5] 18-0} 0-5}! 0-2] 0-1] 20 3-0 Id. 22 826 || 25-5} 24-4| 1-1} 0-2] 0-1} 24 5-0 || Cirro-strati and cirrous haze. 18 0 773 || 34-4] 32-3] 2-1) 0-6] 0-4] 22 ||__:28:—|! 10.0 || Cirro-strati; a parhelion at 23", 2 714 || 36-8] 34-6] 2-2 | 1-6 20 || —:26:—|| 10-0 Id. 4 | 639 || 38-5] 35-6| 2-9) 3.4 20 ||}24:30:—|| 9-5 || Seud; cirro-strati. 10 480 || 41-0} 39-5} 1-5 1 1 1 0 20 492 || 38-9] 38-6! 0-3|| 0- 0 0 18 || 29-475 || 39-4] 39-1} 0-3 0-0} 12 3-0 || Scud and thin haze. 0:0| 20 10-0 || Scud; the snow is disappearing rapidly. 22 505 || 38-8] 38-4] 0-4 0-0! O 10-0 || Fog, trees invisible at 200 yards ; slight drizzling rain. 19 0! 485 | 40-7| 40-31 0-4! 0.0/ 0.0! 8 ||26:—:—l|| 10.0 Seud ; cirro-strati; fog clearing off. 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), (.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. Dec. 124104. Three bright flashes of lightning seen to HB. Dec. 154 10%, About 10% 7™, it had become overcast and a shower of snow commenced. 408 Dairy METEOROLOGICAL OBSERVATIONS, DECEMBER 19 —25, 1846. THERMOMETERS. WIND. SN [pe Mean fe: Oo: Ci, || Sky =e tay — Bool wentbae icete “ha moving latyvintase Species of Clouds and Meteorological Remarks. 14, |10™. —— a | = 4 dad. h. in. S o 2 lbs. | Ibs pt pt. pt. pt. 0—10. 19 2 | 29-456 || 46-0} 45-1! 0-9] 0-6) 0-3) 18 |} 21:—:—|| 9-9 || Scud. 4 452 || 45-9| 45-0] 0-9) 0-7) 0-5) 18 || 19:22:22) 9-0 || Loose driving seud; scud ; cirri and cirro-strati. 6 || 427 || 45-0| 44-3| 0-7|| 1-1} 0-1} 20 10-0 || Seud. 8 || 414 || 45-4] 44-4| 1-0|| 0-8) 0.3] 22 | 95 || Ia. 10 407 || 45-7| 44-1| 1-6|| 0-8} 0-6| 23 | 5.0 Id. 23 || 29-176 || 43-9} 41-5) 2-4)) 2-3) 1-0) 23 || 22:—:— | 6:0 || Scud. 2018 | 28-851 | 39-8| 39-4) 0-4|| 2-2) 0.0) 2 10-0 || Seud; rain”? 20 || 778 || 39-3} 39-0} 0-3}| 0:0) 0-0; 2 10-0 || Id.; rain? 22 | 745 | 38-7| 38-4] 0-3) 0-1| 0-1] 6 || 4:—:—| 10-0 | Misty seud ; rain”? 21 0} 708 || 41-8! 41-3] 0-5 || 0-1) 0-1] 20 10-0 || Thick cirro-stratus and cirrous haze. 2 || 683 || 41-5| 41-0} 9-5|| 0-5| 0-3| 30 |/31:—:—J 10-0 || Scud; rain? 4 || 690 || 40-3| 39-1| 1-2]) 0-4} 0-2| 28 | 0:—:—|\ 10-0 || Scud; cirro-stratus. 6 || 689 || 38-0) 37-1| 0-9|| 0-7) 0-9) 28 10-0 || Scud and dense cirro-stratus. 8 || 708 || 37-9} 36-8) 1-1]) 0-2) 0-1) 22 | 10-0 Id., breaking slightly to N. 10 | 717 || 35-2) 34-6| 0-6) 0-1) 0-1] 21 | 7-5 || Cirro-stratus. 18 || 28-788 || 34-4 33-5 | 0-9|) 0-1} 0-1) 26 | 10-0 || Scud and cirro-stratus. 20 | 822 || 34-8| 34-1) 0-7]| 0-1] 0-1] 27 | 10-0 Id. 22 848 || 34-5) 33-2] 1-31] 0-1) 0-1) 28 ||—: 0:— 9.0 || Cirro-cumulo-strati; cirro-stratous scud and cirro-strati. 22 0 || 861 || 35-2] 33-6| 1-6|| 0-1] 0-1) 26 }—: 0:—| 9:9 | Cirro-stratous scud ; cirro-strati. 2 | 861 || 37-0) 34-7) 2-3|| 0-2] 0-1| 28 | 28:28:—|| 9-5 || Scud and cirro-stratus. 4 859 || 35-7] 33-8] 1-9]] 0-2) 0-1| 26 ||28:28:—]} 9.0 Id. 6 | 847 || 33-9} 32-2] 1-7]| 0-1| 0-1] 28 8-0 || Seud and cirro-eumulo-strati. } 8 820 || 33-3] 31-6} 1-7}| 0-1] 0-0) 12 | 3:0 Id. y 10 801 || 33-3| 32-6) 0-7|| 0-1] 0-0) 26 | 10-0 || Scud and cirro-stratus. 18 || 28-681 || 34-0] 32-8) 1-2|| 2-7) 0.9) 0 3-0 || Scud; snow on the ground. 20 || 689 || 33-0} 32-6) 0-4|| 2-8) 2-1] O 10-0 || Snow’ 22 748 || 35-3] 33-7| 1-6]) 3-7| 1-5] 2 10-0 || Scud; shower of snow. 23 0 | 787 || 36-9) 33-4 3-5 || 2-4). 2.0] 2 || 2:—:—]| 10-0 Id. 2 | 819 || 36-5| 33-0} 3-5]| 24] 1-6) 0 || 4:—:—}]| 10-0 Id. 4 849 || 33-8| 33-2] 0-6]! 2-8) 2-7) 1 10-0 Id.; snow! 6 || 870 || 33-4] 33-0| 0-4]) 3-4) 2-1] 0 10-0 || Heavy snow and sleet. 8 || 899 || 33-9] 33-4] 0-5]| 4-4) 23) 2 10-0 || Continuous snow and sleet. 10 || 949 || 33-2] 32-7) 0-5}) 2:9] 0-4] 2 10-0 Id. 18 || 29-096 || 30-0} 28-0} 2-0]| 1-3] 0-2) 2 9-0 || Seud and cirro-strati. 20 || 126 || 26-0) 25-3} 0-7]| 0-1) 0-0 6-0 || Cirro-cumulo-strati and woolly cirri. 22 | 174 || 27-8| 26-6] 1-2|| 0-0] 0-0) 30 |) 4:—:— 6-0 || Seud, cumuli, and nimbi; cirro-strati. 24 0 | 207 || 31-1} 30-0] 1-1)| 0-1) 0-1} 2 |) 4:— tea Id. 2} 213 || 28-6} 27-6) 1-0]! 0-4] 0-3] 28 3-0 || Cumuli and nimbi; parhelion at 1". {0} 4 || 221 |) 28-7| 27-5] 1-2} 0-5} 0-4) 28 2-0 Id. [the zenith from about N. ) 6 | 251 || 27-1| 26-6} 0-5]| 0-4] 0-3} 30 3-0 || Cum. and seud on hor.; masses of clouds occasionally passing over 8 274 || 23-7] 23-0} 0-7 || 0-2| 0-1] 20 0-5 || Clouds on horizon. ») 10 |} 295 || 23-4) 22-5] 0-9) 0-2] O-1| 24 0-0 || Clear. yy 18 || 29-438 || 29-9| 28-4] 1-5|) 1-0] 0-4] 31 4-0 || Scud. 20 | 498 | 31-0| 29-6| 1-4}| 0-3) 0-2] 31 | 9-5 || Id.; snow? Oe 568 || 27-6| 26-2] 1-4]! 0-4) 0-3| 28 0:—:—| 4:0 || Seud and loose cumuli. 25 0 | 636 || 29-2| 28-1} 1-1]| 0-7] 0-4] 28 | 2.0 || Cumulo-strati and nimbi on horizon. (0) 2) 672 || 28-2} 26-7| 1-5|| 0-9] 0-4] 28 2.0 Td. {0} 4 || 707 |) 28-3) 26-4) 1-9|| 0-4) 0-5| 28 || | 2-0 |j Id. ; haze round hor. 6 743 || 31-0) 28-4} 2-6)) 0-6| 0.3) 28 1-0 || Masses of cirro-stratus to SE. ») 8 792 || 31-3} 29-0] 2-3] 0-5' 0.3) 26 | 0.2 || Cirro-strati and haze on E. horizon. »)) 10 832 || 31-4) 29-3| 2-1|| 0-6) 0-3} 28 || 0-3 || Sheets of thin cirro-strati and cirri. ») 18 | 29-930 | 25-2] 24-6] 0-6|| 0-4|-0-0| 22 |, | 0-0 || Clear. 20 | 29-925 || 32-4) 30-8) 1-6]| 0-3) 0.2| 22 | 0-2 || Girro-strati on E. horizon. 22 || 30-010 || 34-8! 32-3] 2-5)} 0-3 | 0-3! 20 | 0-4 | Cirro-strati on N. horizon. (0) The direction of the wind is indicated by the number of the point of the compass, reckoning N. = 0, BE. = 8, Ss. = 16, W. = 24. Dhow mations of the three strata of clouds, Sc. (scud), C.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. ie Dartty METEOROLOGICAL OBSERVATIONS, DECEMBER 26—31, 1846. 409 THERMOMETERS. WIND. Clouds, Bans Maximum Se.:C.-s.:Ci.,|| Sky ; - 2 ae | Dry. | Wee ae gee ion moving _||clouded. Species of Clouds and Meteorological Remarks. ‘ from 14, | 10, in. ° ° o || ths. | Ibs. | pt. || pt. pt. pt. |) 0—10. 30-045 |) 34-3] 32-4] 1-9] 0-1) 0-1) 16 0-5 |) Cirri and cirro-strati. (0) 065 || 36-6] 34-8] 1-8] 0-1] 0-1] 16 1-0 Id. © 089 || 34-2] 33-2] 1-0|} 0-1] 0-0] 19 || —:—: 0} 5-0 | Woolly cirri, cirro-strati, and cirrous haze. 119 || 31-6) -- 0-1} 0-0} 18 3:0 || Woolly cirri. ») 154 || 29-0| 28-6] 0-4} 0-1] 0-0] 16 2-0 || Cirrous haze and woolly cirri; lunar corona. »)) 167 || 24.1] 23-9} 0-2|| 0-0} 0-0) 18 0-0 |) Clear. ») 30-214 || 17-3 0-0} 0-0 10-0 || Woolly cirri and cirro-strati. 30-104 | 36-6] 35-0] 1-6]| --- | 0-1] 22 10-0 || Homogeneous. 115 || 38-2| 37-5] 0-7}| 0-1] 0-1) 21 9-5 || Scud and cirro-strati. 130 || 37-5| 36-7] 0-8|| 0-2] 0-2] 18 || 26:—:—|| 3-0 || Scud. 141 || 37-9] 37-0| 0-9] 0-3} 0-2) 17 0-5 || Scud on horizon. © 140 || 39-7| 38-2] 1-5]) 0-2} 0-1] 16 | 28:—:—|]} 3-0 || Seud. fo) 134 || 38-3| 37-2] 1-1|] 0-4] 0-3] 18 |}28:—:—| 9-5 || Id.; cirro-stratus. 147 || 37-0| 36-3} 0-7 || 0-2] 0-1] 18 10-0 || Id.; id. 147 || 36-5| 36-1] 0-4]) 0-0} 0-0} 16 10-0 || Thin cirro-stratus and seud ; drops of rain. } 133 || 37-0) 36-6] 0-4]| 0-0] 0-0] 20 10-0 || Cirro-stratus and scud. 30-100 || 36-9| 36-6| 0-3|| 0-2| 0-0} 20 3-0 || Cirro-strati and scud. 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:—-:—] 2-0 || Loose seud; linear cirri. (0) 125 || 40-0) 39-1} 0-9|| 0-3} 0-2) 18 9-0 || Woolly cirri and cirrous haze. =) 111 || 41-0] 40-1] 0-9|| 0.2] 0-2} 20 | 20:—:—} 10-0 || Misty scud; cirro-strati. 125 || 40-2] 39-3] 0-9]| 0-5] 0-1) 20 || 24:—:—]| 9-9 |) Scud; cirro-strati. 147 || 39-1) 38-3] 0-8]| 0-4] 0-0} 14 10-0 || Scud and thick cirro-strati. 161 || 38-9| 38-2} 0-7) 0-2] 0-1] 20 10-0 Id. >} 186 || 37-8} 37-5] 0-3]] 0.2] 0-0) 0 |/—:24:—| 3-0 || Cirro-cumulo-strati. + 30-232 || 33-5| 33-3] 0-2]| 0-3] 0-1} 18 5:0 || Cirro-strati; misty. »») 242 || 32-7| 32-5} 0-2}\ 0-1] 0-1} 18 10-0 Id. id. 260 || 34-3] 34-0] 0-3] 0-3] 0-1] 22 || 22:—:26| 4-0 || Loose scud: cirri. 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. 0) 261 || 39-2| 38-3] 0-9|| 0-2| 0-2) 22 || —:—: 0] 2-5 || Woolly cirri; hazy round horizon. 274 || 35-6| 35-2) 0-4} 0-3) 0-1) 16 | 3-0 || Clouds and haze on horizon. : ») 274 || 36-6| 36-2) 0-4]) 0-1] 0-0) 20 10-0 || Scud and cirro-stratus. 263 || 37-4| 37-0| 0-4]| 0-0] 0-0) 18 | 10-0 Id. 30-269 || 39-2) 38-8} 0-4] 0-3} 0-1) 19 10-0 || Scud and cirro-stratus. 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. 299 || 42-0| 41-5] 0-5|| 0-2] 0-1] 20 ||30:—:—|| 6-0 || Scud. 276 || 43-8] 43-2] 0-6|| 0-1] 0-1} 5 9-8 || Cirro-cumulo-strati and cirro-strati. 280 || 43-6} 42-8] 0-8|| 0-1] 0-1} 22 9-9 || Wavy cirro-strati; loose scud on E. horizon. 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. 284 || 39-8} 39-6] 0-2] 0-1} 0-0} 26 10-0 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. The motions of the three strata of clouds, Se. (scud), (.-s. (cirro-stratus), and Ci. (cirrus), are indicated in a similar manner. MAG. AND MET. oBs. 1846. 5a el © DAILY AND EXTRA METEOROLOGICAL OBSERVATIONS. : MAKERSTOUN OBSERVATORY 1846. Dainty METEOROLOGICAL OBSERVATIONS, JANUARY—JUNE, 1846. TEMPERATURE. RADIATION. Min. ODnNIaurPwnre Feprvuary. Min. 34-2 30-2 36-6 29-6 32-6 28-0 35-62 27-6 26-7 17-6 25-2 26-2 26-0 Min. TEMPERATURE. Max. RADIATION. Rain in TEMPERATURE, RaDIATION. | Rain in Max. Gauge ‘at Noon, Max. Min. Gauge Max. |at Noon, 124-0 | 0-000 116-5 130-0? 120-1 121-7 116-7 113-2 75:8 114-0 96-5 102-0 103-7 115-7 120-0 121-2 135-0 134-0 130-0 119.0 102-0 111-5 108-4 74-0 84-0 102-0 77:8 99-0 94-5 92-2 79-0 oe eee! oe ee eee base —_ RB OWOONTA AP wb en ee SCOONTH NA Wp to tw oe DaiLty METEOROLOGICAL OBSERVATIONS, JULY—DECEMBER 1846. Min. | Max. MAG, AND MET, TEMPERATURE. RADIATION. Min. Max. 58-1 AvGustT. oxs. 1846. Rain in Gauge at Noon.|| TEMPERATURE. RADIATION. Min. Max. Min. [i Rain in Gauge lat Noon. TEMPERATURE. RADIATION. Min. Max. ° OctToBER. ° ° SEPTEMBER. 43-1 Min. OVEMBER. 49-1 23-2 ECEMBER. 22-4 14-2 10-2 414 ExtTrA METEOROLOGICAL OBSERVATIONS, 1846. ACTINOMETER. Sepa In Sun | Observation. | Change | Effect} Mean | Sun’s crea In Sun | Observation. Change of or 7 in of of Alti- of oD |e > Leen in of First Reading. | Shade. |Begun,|Hnded.| 60°: | Sun. | Group. | tude. | inst Reading. | Shade. |Begun|Ended.| 60%. | Sun. dovehem- Bl Se. div.| Se. div.| Sc. div. | Se. div.| Se. div. 2 a eS Se. div. | Sec. div. | Se. diy. | Sc. diy. May 15, 16, 1846. May 31—Jvune 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 | 9.8 34 0| Sun | 23-8/30-3 | +65 | 6-6 50 45| Sun | 38-8| 46.0 | +7-2 | 10-2 35 30| Shade| 30-3) 30-0 | —0-3 | 6-7 52 15| Shade| 44-8] 41-7 | —3-1 | 9.5 37 0| Sun | 33-0/39-4|+6-4]| 6-9 53 45| Sun | 44-7|50-3 | 45-6 | 9-3 38 30| Shade| 39-1|38-5 | —0-6 | 6-9 || 6-80) 53-4 55 15| Shade| 48-3| 44-0 | —4.3 | 9.8 40 0| Sun | 41-4|47-7 | +6-3 | 6-9 | 56 45| Sun | 22-2/27.6 | +5-4] 9-6 | 41 30| Shade] 47-5|46-9 | -0-6 | 6-9 58 15| Shade} 25-7) 21-6 | —4-1 | 9.7 43 0| Sun | 49-7|55-9 | +6.2]| 6-9 59 45| Sun | 24-2) 29-9 |+5.7] 9.8 44 30] Shade| 18-3/17-5 | —0-8 | 7-0 31 23 1 15| Shade| 27-9| 23.7 | —4.2 | 9.6 46 0| Sun | 20-3} 26-5 | +6-2 | 2 45| Sun | 25-8/ 30-8 | +5-0 | 9-4 16 0 27 30| Sun | 22-3/27-0 | +4.7 a Alig oe ae Ae 7 29 0! Shade| 24-8 | 22-4 |—24! 5.9 \ 6.00 53.0 30 30) Sun | 24-6/27-0| +24) 6-1 32 0) Shade| 24-8/19-8 | —5-0 1 0 54 45| Sun | 36-7] 45-8 | +9-1 56 15| Shade| 46-0|45-7 | —0-3 | 9-1 May 31, 1846. 57 45| Sun | 49-4|58-0 |+8-6] 9-3 31 21 26 45| Sun | 17-9]26-6 | +8-7 59 15| Shade| 58-0/57-0 | —1-0 | 9-5 28 15| Shade| 27-2] 28-0 | +0-8 | 8-0 1 1 0 45| Sun | 31-0/39-4 | 48.4 | 9.4 29 45| Sun | 31-9]40-7|+8-8] 8-2 2 15| Shade} 39-2|38-1 | —1-1 | 9-4 31 15| Shade| 41-3/41-8 | +0-5 | 8-0 | 3 45| Sun | 41-7/49-8 | +8-1 | 9.3 32 45| Sun | 45-6/53-8 | +82 | 7-9 5 15| Shade| 49-3/47-9 | —1.4] 9.5 34 15| Shade] 54-1/54-3 | +0-2| 8-1 |! 9-21] 47-4 6 45| Sun | 51-6/59-8 | +8.2 | 9-6 35 45| Sun | 16-5/24-9 | +484] 8-4 8 15| Shade] 59-5/58-2 | —1.3 | 9.3 37 15| Shade] 25-2/25-1 | —0-1 | 8-4 9 45| Sun | 61-6/69-5 |+7-9 | 9.4 38 45| Sun | 28-7/36-9 | +8.2 | 8-4 11 15| Shade! 69-0| 67-4 | —1-6 | 9-5 40 15| Shade| 37-0|36-7 | —0.3 | 8-5 12 45| Sun | 30-7|38-6 |+7-9| 9.7 41 45| Sun | 40-3/48-6 | +8-3 14 15| Shade| 38-0/ 36-0 | —2-0 | 9.6 31 22 9 45) Sun | 123/205 | +82 NS 35 | Sit SQNa Eel gee Seas 2 7 15| Shade} 45.9| 43-5 | —2.4 | 9-5 11 15| Shade} 20-1/19-0 | —1-1 | 9.0 |) feeds lieun., | Weel : ; 5|53-3 1468 | 9-5 12 45/ Sun | 22-7/30-4 | +7-7 | 9-1 20 25| Shade} 51-8|48-9 | —2.9 | 9-6 14 15| Shade} 29-9| 28-3 | —1-6 | 9-5 Saar cae ; a 5| Sun 50-7 | 57-4 | +6-7 | 9-8 15 45} Sun 31-8/39-9 |} +8-1 | 9-6 93 15| Shad , of a z zs 23 15| Shade| 56-1| 52-8 | —3.3 | 10-3 17 15} Shade} 39-3/37-9 | —1-4 | 9-4 |t 9-39] 51-7 24 45| Sun | 55-8163.0 | 47-2 | 10.0 18 45| Sun | 15-9|23-8 | +7-9 | 9-7 Baie shail eat: 3 20 15| Shade] 23-0} 20-8 | 2-2 | 9.7 : | Sap Pale 2 aun 27 55| Sun | 63-9|71-3 | +7-4 21 45) Sun | 23-7/30-8 | +7-1] 9:3 ae o ee ade =i ner 9-2 1 1 50 45| Sun | 17-5] 22-3 | +4-8 52 15| Shade} 19-8] 14-8 | —5-0 | 10-3 31 22 31 45) Sun 5-3|14-5 | +9-2 53 45| Sun | 17-2] 23-0 | +5-8 | 10-4 33 21| Shade} 16-0| 10.2 | —5-8 13-7 |) 55 15| Shade} 21-1| 16-9 | —4-2 | 9-7 34 45| Sun | 11-6| 18-2 | +6-6 | 12-7 56 45| Sun | 19.5| 24-8 | +5-3 | 10-1 36 15| Shade] 16-9] 10-4 | —6-5 | 12-3 | 58 15| Shade} 57-4| 52-1 | —5-3 | 10-7 37 45) Sun | 12-:9|17-9 | +5-0 | 12-1 |}11-97} 53-4 59 45| Sun | 54-5| 60-0 | +5-5 | 10-6 39 15| Shade| 15-3] 7-6 | —7-7 |11-6 | | 1 2 1 15] Shade] 58-0] 53-0 | —5-0 | 10-7 40 45| Sun 8-0| 10-7 | +2-7 | 10-4 245/ Sun | 55-5/ 61-3 | +5-8 | 10-9 42 15| Shade} 20-1} 12-3 | —7-8 | 11-0 4 15| Shade} 59-1] 53-9 | —5-2 | 10-7 43 45! Sun ! 14-2117-8 | 43-6 5 45| Sun | 56-4| 61-6 | +5-2 | 10-6 May 154 23% 44m, May 162 0% 30™, May 314 21) 35™ May 314 22 10™, May 314 22» 3] May 314 22h 34m May 314 22h 42m May 314 22» 58m May 314 23h 6m Screw withdrawn. Clouds near the sun. . 308. Screw withdrawn. —45m, 30%. Screw turned in. 0s. Screw turned in. . Sky somewhat milky. small piece of sediment. June 14 1» 58™ 0s. Screw turned in. Dry thermometer, 67°-5, wet thermometer, 5575. Glass plate removed from the instrument, replaced after 22" 45™, Effect | Mean of Group. So. div. 9-64 9-36 9:77 10-24 9-70 | Sun’s Alti- tude. 54-4 54:9 54-4 53-8 49-9 49.2 During the preceding observations, there was a small bubble of air about 0:1 inch in diameter in the bulb attached to a Extra METEOROLOGICAL OBSERVATIONS, 1846. 415 ACTINOMETER. Makerst = Makerstoun oer | In Sun | Observation. Change | Effect | Mean | Sun’s of _ or in of of Alti- First Reading. | Shade. |Begun,|Ended. 605. | Sun. | Group. | tude. In Sun | Observation. Change] Effect | Mean or in of of Shade. |Becun.|Ended.| 60*- Sun. | Group. Sc. diy.| Sc. diy.| Se. div. |Sce. div.| Sc. div. da hm 5. Sc. diy.| Sc. div.] Sc. div. | Se. div.] Se. div. S JUNE 1, 1846 JUNE 1, 1846. Shade | 59-0 | 53-3 | —5-7 | 11-1 1 ge: 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 Shade| 65-8/62-8 | —3-0 | 8-5 Sun | 64:9|70-2 | +5-3 | 8-5 |} 8-61] 33.3 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 Sun 55-3 | 60-9 | +5-6 | 11-1 Shade | 58-7 |53-5 | —5-2 | 10-6 |;10-70 wor OMBDADAUwWhwWo nS ox =e 1 5 445! Sun | 51-3/56-1 | +48 | 6 15| Shade| 55-0/52-1 | -2-9 | 7-6 7 45| Sun | 54-0|58-7 | +4-7 | 7-7 9 15| Shade| 57-4|54-4 | —3-0 | 7-4 10 45| Sun | 55-7|59-8 | 44-1 | 7-2 7.3 Sun 49.2| 53-4 | +4-2 |10-1 |}10-12 13 45} Sun 57-2/61:3 |+4-1 | 7-4 lec 24-1 5| Shade| 53-9] 48-2 | —5-7 | 10-0 9.92 Sun 50-6 | 56-3 | +5.7 | 10-3 |}10-02 32 15| Shade| 61-6| 60-0 | —1-6 | 4:5 4.43 | 13-3 Sun 51-6| 57-2 | +5-6 Shade| 55-9| 52-8 | —3-1 | 8.7 Sun 55-0| 60-7 | +5-7 | 8-7 Shade} 59-5|56-7 | —2-8 | 8-4 Sun 59-1|64-7 | +5-6 | 8-8 Shade| 63-4|59-9 | —3-5 | 9-1 8-79 Son 62-3| 67-9 | +5-6 | 8-9 Shade| 66-6| 63-4 | —3-2 | 9-0 Sun 65-9| 71-8 | +5-9 | 8-9 Shade} 70-6] 67-8 | —2-8 | 8-6 Sun 70-21 76-0 | +5-8 14 15| Shade| 55-4] 54-2 | —1-2 | 2-4 2:43) 7-9 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 37™ 0s. Screw turned in. June 1464 25m. No clouds near the sun; hazy near south horizon. June 12 62 34™, Light breeze. une 14 7» 9m 30s, Screw turned in. 416 Extra METEOROLOGICAL OBSERVATIONS, 1846. ACTINOMETER. Makerstoun Mean Time of First Reading. Observation. Makerstoun Change} Effect! Mean | Sun’s} Mean Time in of of Alti- of Begun.|Ended. 60s, | Sun. | Group.| tude. | First Reading. JUNE 1, 2, 45-4 | 52.4 53-3 | 54-7 57-7 | 64-4 67-0 76-4 77:3 86-7 87-4 60-8 61:3 71-0 71-2 81-5 81-3 60-0 59-6 68-6 JUNE 2, 3, 44-3 | 46-9 46-6 | 45-7 46-7 | 49-0 48-6 | 47-5 50-8 49.3 52-9 51-4 55-0 53-0 56-7 54:8 58-4 Se. div. ] Se. diy | | .| Se. div. | Sc. div.| Se. div. 1846. | +7-0 +1-4 +6-7 +0-7 +6-3 +0-3 1846. +2-6 —0-9 +23 = 1-1 + 2:4 Sos +26 —1-0 + 2:5 —1-4 +2-7 —1:3 +25 Observation. Begun.|Ended. Se. diy. Sun *8 | 50-5 Shade -1| 48-8 Sun -0 | 53-6 Shade -0 | 51-2 56-1 53-7 58-7 Shade Sun Shade Sun Shade Sun Sun Shade Sun Shade Sun Shade Sun Shade Sun Shade Sun Change) Effect) Mean | Sun’s in 605. Se. div. 2, 3, 1846. +3-7 —1:3 +3-6 —1-8 +3-4 -1-7 +3-7 —1-8 +3-4 —1-6 +3-9 —1:3 +4-0 + 5-2 — 0-6 +5-5 —0-7 +5-1 —0-8 +5:3 —0-9 + 5-2 lai of of Alti- Sun. | Group.| tude, Se. diy.| Se. div. June 14 214 37™, June 24 17% 35™, June 24 204 35™, June 24 21» 50™, Breeze ; a few patches of cloud, none near the sun ; Cloudless ; haze on horizon. Sky very favourable. Splendid sky. June 24 215 59™ 45s, Screw withdrawn. hazy from horizon to 20° altitude. EXTRA METEOROLOGICAL OBSERVATIONS, 1846. 417 ACTINOMETER. Makerstoun . Makerstoun Mean Time Observation. | Change Mean Time Mean of in i of i of of First Reading. Begun.|Ended. 605, Y b - | First Reading. Begun.|Ended, - Sun. | Group. Observation. Effect Se. diy. | Se. diy.] Se. div. . div. . . - Be Se. diy. . diy. | Se. div.} Se. diy. JUNE 2, 1846. Sun 37-9|43-8 ) +5-9 2 23 38 O 40-7 | 34-0 | —6.7 30 Sun 69-2 ‘ +58 0 71-3 . — 6-2 Sun 66-7 : +51 68-6 . — 8-2 Sun | 62-6| 68.4 | +5-8 . 3.| +7-6 10-0 65-7 : —8-0 -7| 67> —2:5 | 9-9 | Sun 59-9) 65-1 | +5-2 : RO! erase | Sun at : ee : JUNE 16, 17, 1846. Sun | 72-1|79:7 | +7-6 | 9- 31-6 79.0|76-7 | —2.3 | 9- aoe Sun 79.8 ‘i +73 . . . 45-1 86-1| 83-3 | —28 | 10- 33:5 Gian FEY ee (0) A 56-6 68-4 “7 eon. i 63-2 din 2 | 479 65:5 72-9 75-6 Sun -4 | +68 —6-4 : Sun . 4 | +40 : 12-6 —10-7 < 16-4 Sun : +2.4 . 14-6 -11-3 : 73-3 Sun “8 | +455 : 71-6 j -7:3 : 75-1 Sun 71:5 6 | +7-1 : 77-4 76:3 . —5-0 : 81-0 Sun 74-2 | 80-4 | +6-2 : 79-0 78-3 a —5-7 o 82-1 Sun 74:5 “8 | +6:3 80-7 Sun 68-6 +7-2 66-1 Shade | 75-0 —2:3 : 70-5 Sun 75:8 +78 : 69-3 Shade} 82-6| 80-0 | —2-6 : 72-9 Sun 83-3 | 91-3 | +8-0 : 71-7 Shade} 65-4| 62-9 | —2.5 76-3 Sun 66-3 | 74-4 | +8-1 74-0 Shade} 73-9| 71-6 | —2-3 : 76-3 Sun 74-7| 82-3 | +7-6 73:3 June 24 22h 7m—20m, Glass plate removed from the instrument; replaced after 20™. June 24 22h 9m 45s, Screw turned in. June 222213m. wo very small patches of cloud formed to SE. ; sun very clear. June 24 22h 36m 458. Screw withdrawn. June 24 22h 43m—23h 2m, Glass plate removed from the instrument; replaced after 2, June 24235 8m, Patches of cumuli appearing on various parts of the horizon. June 2¢ 235 12m 158. Screw withdrawn. June 24 23h 43m, Cumuli increasing ; dry thermometer 77°°5 ; wet thermometer 62°4. June 164 234 44m, A few cumuli about the horizon. June 174 0b 31™ 305, Screw turned in. June 174 0 36™, One set of observations missed. MAG. AND MET. oss. 1846. 5N 418 Makerstoun Mean Time In Sun of _ or First Reading. Shade. Extra METEOROLOGICAL OBSERVATIONS, 1847. ACTINOMETER, Makerstoun Méan THRE Observation. Observation. | Chan ge Mean | Sun’s in of Alti- of Begun.|Ended.| 60%. | Sun. | Group. | tude. | Pirst Reading. : .|Ended. Shade Sc. diy.] Sc. div.| Se. div. Se. div. 2 da. hm 65. Se. div. | Se. div. JULY 2, 3, 1847. 43-2|57-7 2 23 12 58-2 57-9 * 63-5 77-8 81-3 80-4 11-7 25-7 25-9 24.8 30-0| 43-7 43-6 41-7 46-7 | 60-3 94-1 |+12-7 4 |+10-7 Shade . 9 |— 5-9 Sun 26-9 | 39-1 |+12-2 Shade o ‘6 |-— 6-2 Sun . ‘9 1410-9 Shade . 4|/— 8-6 Sun p “8 |+11-0 Shade : T\|-— 7-5 Sun : ‘0 |+10-2 Sun ‘7 |+11-3 Shade . 0 |— 5-9 | Sun . “-L |+11-4 | 37.2193. ; 6) : Shade ; 7 2.409 : Sun Y 2 |4+12:3 | 6 F 4 : Shade 5 Es =" 58} Sun ‘7| 61-7 |+11-0 Shade : 9 |/— 5-9 Sun ‘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 ones, July 24 21h 23m, July 24 214 30m, July 24 215 57m, July 24 22 10m, July 24 224 39m, July 24 22 52m, Observations made at east end of Observatory. Dry thermometer, 63”7 ; wet thermometer, 59°°7. Observations made on the south side of Observatory. Barometer, 29:945 in.; dry thermometer, 65°2; wet thermometer, 58°°7. Observations made at west end of Observatory. Dry thermometer, 68°°3; wet thermometer, 61°-0. July 24 225 59m—235 9m, Glass plate removed from the instrument; replaced after 9™, July 24 235 44m, July 34 15 22m, July 34 2h 17m, Dry thermometer, 71°-6 ; wet thermometer, 62°°5. Dry thermometer, 75°°0; wet thermometer, 6177; too much wind. Dry thermometer, 756; wet thermometer, 61°-9. Extra METEOROLOGICAL OBSERVATIONS, 1847. 419 ACTINOMETER. | | , ee eae In Sun | Observation. | (hange| Effect} Mean | Sun’s oe | In Sun | Observation. | Ghange| Effect} Mean | Sun’s of or in of of Alti- 0 | or in of of Alti- : First Reading. Shade. Begun.|Ended. 605. Sun. | Group. | tude. | pirst Reading. Shade. eee 605. Sun. | Group. | tude. | | = | ‘a. hom 5 Sc. diy.|Se. div.| Se. diy. | Se. div.! Se. div. st de hom, Bef \/So div. Se. div. | Sc. div. | Sc. div.! Sc. div. ° JuLyY 3, 1847. JuLy 3, 1847. 3 3 26 12| Sun 29-7 | 39-6 |+ 9-9 3 7 16 12| Sun 55:0| 59-3) +43 | 27 42| Shade} 37-0 | 29-3 |— 7-7| 17-6 17 42} Shade} 58-6) 54:8 -—3-8 | 7-8 | 29 12} Sun 31-9| 41-8 |4+ 9-9] 18-0 | 19 12) Sun 55-8| 59-6 +3-8 | 7-9 ch 30 42) Shade| 38-3 | 29-7 |— 8-6] 18-2 20 42) Shade| 58-6) 54-3) —4-3 | 7-9 4 32 12) Sun 31-8| 41-1 |+ 9-3| 17-4 |}17-76 | 39-9 22 12} Sun 55-0| 58-4 +3.-4 | 7-6 | 33 42| Shade| 38-4/30-8 |— 7:6) 17-4 23 42| Shade} 57-3] 53-2. —4-1 | 7-3 7:49 | 8-3 if 35 12} Sun 33-9 | 44-1 |+10-2/ 18-0 25 12] Sun 53-8 | 56-8 +3-0 | 7-1 | 36 42| Shade} 41-7 | 33-7 |— 8-0|17-7 26 42) Shade] 55-8} 51-6, —4-2 | 7-3 | 38 12| Sun 36-8 | 46-0 |4+ 9-2 28 12| Sun 52-0} 55-2) +3-2 | 7-5 | 29 42| Shade} 53-9) 49-6) —4-3 | 7-0 | 3 4 14 12) Sun 39-6 | 51-8 |+12-2 31 12) Sun 50-0) 52:3 42-3 | 15 42| Shade} 50-9| 45-8 |— 5-1) 16-6 17 12) Sun 49-4 | 60-2 |+10-8 | 16-3 3 7 40 12) Sun 46-2| 47-4| +1-2 18 42| Shade} 58-7|52-7 |— 6-0| 16-8 41 42| Shade| 46-0] 41-4) —4-6 | 5-5 20 12/ Sun 55-9| 66-6 |+10-7/| 16-8 |}16-44 | 33-3 43 12| Sun 41-3| 41-9| +0-6 | 5-4 | 21 42) Shade} 65-2| 59-0 |— 6-2/ 16-4 44 42) Shade} 40-3} 35.4) —4-9 | 5-4 | 23 12) Sun | 62-2/72-0 |+ 9-8| 16.2 46 12| Sun | 35-1) 35-5| +0-4 | 5-1 a 24 42) Shade| 70-2|63-7 |— 6-5) 16-0 |, 47 42| Shade! 33-8] 29-2.| —4-6 | 4.8 | 26 12} Sun 66-5 | 75-7 |+ 9-2 49 12) Sun 29-1| 29-2) +0-1 | 46 |} 4-67 | 5:3 4 | 50 42} Shade| 27-3) 23-0) —4:3 | 4.3 | 3 5 3 12) Sun 50-3 | 61-0 |4+ 10-7 52 12) Sun 22-8] 22:8 0-0 | 4-2 it 4 42) Shade| 60-2|56-3 |— 3-9} 14-2 |} 53 42| Shade| 53-4) 49-3) —4-1 | 4.0 | 6 12} Sun 59-9/69-8 |+ 9-9) 14-3 55 12) Sun 49-0} 48-8} —0-2 | 4.2 | 7 42) Shade} 68-3/63-4 |— 4-9} 14-6 56 42} Shade} 46-8} 42-1| —4-7 | 3-9 |! | 9 12) Sun 66-6 |76-2 |+ 9-6/14-5 |+14-40 | 26-4 58 12) Sun 41-3] 39-8) —1-5 | 10 42] Shade} 74-8|70-0 |— 4-8) 14-2 12 12} Sun 37-7 | 46-9 |+ 9-2) 14-2 3 8 3 12) Sun 24-4] 23-2| —1-2 13 42} Shade | 45-6|40-4 |— 5-2) 14-8 4 42| Shade| 21-2) 16-6) —4-6 | 3.2 15 12) 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 6 13 12} Sun 51-0 | 59-7 |+ 8-7 9 12| Sun 42.2) 40-0) —2-2 | 1-9 14 42} Shade} 59-1|55-8 |— 3-3/11-3 10 42} Shade} 38-2} 33:8 —4-4 | 2.3 2-29 | 3-0 16 12} Sun 58-0 | 65-3 |+ 7-3| 10-9 12 12) Sun 32-5) 30-5) —2-0 | 2-8 17 42| Shade} 64-6 | 60-6 |— 4-0} 11-2 13 42| Shade| 28-8) 23-6) —5-2 | 3-0 19 12| Sun 62-8 | 69-8 |+ 7-0) 11-1 |}11-23 | 16-7 15 12| Sun 23-4| 21-0) —2-4 | 2-1 20 42| Shade| 68-9/|64-6 |— 4-3) 11-3 | 16 42| Shade 19-2| 15-4 —3.8 | 0-8 22 12) Sun 66-7 | 73-6 |+ 6-9| 11-4 18 12) Sun | 13-8} 10-1, —3-7 | 0-0 23 42) Shade | 72-2)67-5 |— 4-7) 11-4 19 42) Shade} 8-3} 4-7) —3-6 | 0-0 25 12| Sun 69-2|75:8 |+ 6-6 21 12) Sun 3-:0}—0-6 —3-6 Tuly 32 3h 32m, Tuly 34 4h 19m, July 34 Gb 21m, Tuly 34 7% 24m, Tuly 34 72 40m, Tuly 34 8b 11m, Dry thermometer, 76°-0 ; wet thermometer, 62°8. Dry thermometer, 74°-6; wet thermometer, 62°-6 ; barometer, 29:859 in. Dry thermometer, 71°7 ; wet thermometer, 60°-7. Dry thermometer, 68°-4; wet thermometer, 59°-7 ; barometer, 29°825 in. Observations made near the rain-guage. 58™. The last sun observation not good ; the sun near trees. The sun is about 14° distant from a ridge of land. 15™. The sun just touches the projecting branch of a tree, the readings probably not affected by this. 18™,. About 0-4 of the sun’s face visible. 21™ 125. Sun invisible. 420 ExtTrA OBSERVATIONS, 1846. DATES OF FLOWERING AND LEAFING OF PLANTS, Xe. Feb. 15. 15. 15. 15. 23. 24, 29. March 1. . Larix Europea in leaf. ee a Primula acaulis in flower. Crows coming. Ranunculus Ficaria in flower. Crategus oxyacantha in leaf. Corylus Avyellana, catkins open. Crategus 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. March 1. April 3. Sept. 17. Oct. 20. 31. ZEsculus Hippocastanum in leaf. . Viola canina in flower. . Frogs coupling. . Humble bee seen. . Cerasus Padus in leaf at least a week. Swallows seen at Kelso. . Two swallows seen (Hirundo rustica.) Agraphis nutans in flower; flower-stalk very short, having been stunted by the late frost. . Pyrus aucuparia in leaf two or three days. The most of the swallows seem to have gone off to-day. Fraxinus excelsior, majority of leaves off one tree. Platanus occidentalis, majority of leaves off. 3. Fagus sylvatica, majority of leaves off. 3. Ulmus montana, id. TEMPERATURE OF WATER IN THE COTTAGE AND GARDEN PUMP-WELLS, AND IN THE RIVER TWEED. Gott. M. T. d. March 9 15 23 Cottage. Garden. h. 4 i 5 wee 44-4 46°6 Ppitaseussantnes ASA: se Fmeiesaccocnoere, «2M 58} 46°9 5 ve 441 47:0 5 ses 44:05 46°95 Bi; Bodete cece AAeey 47°7 GS osperacnceen EF 48-1 6), Aisssstiss come ADD) 48°6 Gott. M. T. Tweed. Gott. M. 1. Tweed. dad h S d. h. - June 3 7 73°7 June 17) 99 76:6 4 8 73:3 17 19 71:5 419} 67-6 18 8 75-7 5 Tk 73:9 18 183 70-7* 5 19 68:6 19 185 68:8 6 9 73°4 20° 7 69-2 fe) 66-7 21 18} 66:0 16 8 75:2 * June 184 18, River Tweed slightly discoloured by rain. OBSERVATIONS IN _ MAGNETISM AND METEOROLOGY, MADE AT MAKERSTOUN IN SCOTLAND, IN THE OBSERVATORY OF THE LATE GENERAL 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.RBS., 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. J a oo eh bint: ‘ 4 WA Bi i ine ng Py > a eeeese? a vi OT TAVE te a om rr ies acy, yes lie ae ‘oe vi" : ay a i ; ri rene ‘ i : iaME A ie Cuniee RIVET TODS Vit Pago Tas WA a2 4 wt : ; : 5 ai mie oi wy aaa,” u ‘ ws hy " nt let 16. ra LY, aay eo ee Mitr vi Fmt ie ' Raa ag Ee TAS. MANGIA BI. i 4AMOMR si ts AN sat he Ph ‘ a eQ asap 0700 k : f } LE cer sae “nn 4 ; | ] ice y iT “A ; ‘vo cu rapes mmariCny, (oA em den itn WY WER OF Ot eS a ee et ‘oa Sea UV OM Pe KILO ae ~), Sg’ tet gee ete ha Boas PRATER wie * } owe j arts ; ee ay wo ; 2 AG) SHOUTS ACR AR Ao 22 cate sea ] a ; ATE SOS Me ERAT. 2 : rim ' i a | ; ‘a s ~. eal me TABLE OF CONTENTS. NO. PAGE GENERAL RESULTS OF THE MakERSTOUN OBSERVATIONS— System of Observation in different YOALS, tes reese eens eee eeeeeecee eee reeeeeteneenees 9 xi Maenetic Decrination— Mean Declination and Secular Change,---...+-...sses.sssseeesencnseee sea senenenee 4 xii Annual Variations— Mean Declination, Beer osebcecuneaccncinanccecseveccecccesees Sataiw aps dain sino Winisisiem cing iscsi 7 xii Difference of Daily Means from the Monthly Means, ------+++-++---++++seseeeee 11 xiv Diurnal Ranges, --+1----eseeerersr nee nee es ctee eer eee ees see neater sensaeseseeesaseaseners 12 xv Ranges of the Monthly Mean Diurnal Variation, --.---+2++--+ssessseeseeeeeeee 13 xvi Effect of Disturbance on the Range of the Diurnal Variation, -..--.......... 15 xvi Mean Difference of an Observation from the Monthly Mean,--..---+-.-....++5 16 xvii Number of Positive Differences, --------+-sssesesecteces eee ccnsenceeseecsesecetenes 17 XViii Probable Error of an Observation from the Monthly Mean, «..-..-.......+++- 20 XViii Monthly Variations— Mean Declination, Sonrswaueronccntsrecsnrecncnscrccesvesevccsceduncectecccenensccescans 91 xix Diurnal Ranges, -+++2+:-:+--++eseeeeeeee sec eceeestes ees nen ess seenenesececenanescee ees 29 xix Mean Difference of an Observation from the Monthly Mean,...--.+-.--....--. 24 xix Diurnal Variations— Method of combining Results for Different Years, --+----+++-++-:eeeeeereeseeeee 26 xXx Results from all the Observations, for each Month,----+-...-++---ssseereeveeeeee 28 xxi Results from all the Observations, for Groups of Months,---...--++.++se+++++- 32 xxii Results from Undisturbed Days, for Groups of Months, --.----++--+++:+++--- 36 xxiii Effect of Disturbance on the Mean for a Month and for the Year, -----..-. 38 XXiV Effect of Disturbance on the Mean for each Hour, ---+-++-+-+++s+eee-sseeeeeneee 39 Xxiv Frequency of the Positive and Negative Excursions from the Hourly Mean POSItION, «++ seeeceeeeesssecec ee eee sees ene eee tenses see rcn senses sce eneceneseestesnres 40 XXV Sums of Disturbances from the Hourly Mean Position,...-----.--++-.++++++++- 42 XXvi Mean Excursions of the Magnet from the Monthly Mean Position for each Hour, ween cn een su lscence ens ceepccveenccensnaneeserssce senses cencenvesseeresvecocnsunnas 43 XXVli Probable Error of an Observation from the Monthly Mean, -.....--.-...-.--» 46 xxviii Variations with reference to the Moon’s Hour-Angle,--++---++++1+-ssseseeseees 47 xxix vi CONTENTS. NO. PAGE HorizontaL Component or Macnetic Force— Horizontal Component in Absolute Measure, «+++1+-.1ssseseeeesssseteeeseees tees 48 XXX Secular Change from Observations of Absolute Measure, «++-+-++++++++++-++++ 49 XXX Mean Values of the Variations of the Horizontal Component ------+++++---- 51 xxxi Comparison of the Secular Change from Observations of Absolute Measure with that from Observations of the Bifilar Magnetometer,.----+--------- 53 XXxxii Effect of Disturbance on the Mean Value, «-++++++ee-ceeececaseeseeeeereseeeneees 54s xxxii Secular change employed in Deducing the Annual Variations,----+++++-++--- 55 XXXii Annual Variations — Mean Horizontal Component, eenenecaccesecsustuseruuuccccgcctsccsceccesnccnssnsercacs 56 XXXil Foot-note on the Annual Period Deduced from the Observations at Toronto and Munich, sacle peleucivet es semsetelescvaccntnnobieaitarebciees o¢énecsabscserunsienasine eee XXX Effect of Disturbance on the Monthly Means, «++-+.+....+seereessseeeeeeeee serene 57 = - x xxiii Mean Horizontal Component from Undisturbed Days, ---+++++++++++++++-+-+++ 58 = xxxiii Differences of the Daily Means from the Monthly Means, --- 59 = xxxiv Diurnal Ranges, eaniaesia a apedianeieds eaten eeeeeecenen Pane pinto ps pee ppaaier be epiat vane anedenies 60 XXXKV Ranges of the Monthly Mean Diurnal Variation, from all the Observations and from Selected Days, ous eecpeneccnuacocerevccccssesce+ceevessstenssevecrsenees 61 XXXV Mean Difference of an Observation from the Monthly Mean,.--.--+++++.+++++- 63 XXXV Probable Error of an Observation of the Horizontal Component, --.----.---- 64 9 xxxvi Number of Observations greater than the Monthly Mean,-------++++++--+-.+++ 65 xXxxvi Monthly Variations— Mean Horizontal Component, Ree Anat TORE Tat oc ENDED OT OR EEO REE SEDER e 66 XXXV1 Diurnal Ranges, Sonipateins asiapreslis asia ssot Tenisssipeiniesinan arial ccicccce sigh ae sors spsisapiceninye 67 XXxXvii Mean Difference of an Observation from the Monthly Mean, 68 xxxvii Diurnal Variations— Results from all the Observations, for each Month,-----+++++++-++++ seetee enews 69 xxxviii Results from all the Observations, for Groups of Monthis,-.-.--«-++++++1+1see+ 70 xxxix Results from Undisturbed Observations, for GrORRE¢ of ania seseeeceees } 71 xl Effect of Disturbance on the Hourly Means, «++++++++-.sseseereee eee 72 xl Frequency of Positive and Negative Departures from the oily _— Positions, Raman ele Komee ceaacal desis avlenaia wis, a Cetalaie ate siniaig ciai'b ahia'elncla oxi apieinetetatenss «ie 74 xlii Mean Difference of an Observation from the Hourly Mean Position for each Hour, vesecssessseseceteeeeceeeeerecseeeeeesensn seer aneeerteeaeeereesseeesenn es 76 xlii Probable Error of an Observation from the Monthly Mean,...- 78 xliv Variations with reference to the Moon’s Hour-Angle, «++-+.++++++s+:sesreeees 79 xliv VERTICAL Component OF MAGnetic Force— Vertical Component in Absolute Measure, ----- oor COSCO REDE ERE canassuenece 81 xlv Adjustment of Balance Magnetometer in different Years, ------ ste eeeeeeene ees 82 xlv Yearly Means of the Variations of the Vertical Component with the Secu- lar Change, vadsae cuneate tetlanndees oils mumenteta Cans inter iiisniamalsns\sis-sineecne'e asain ar acd 83 xlvi Effect of Disturbance on the Yearly Mean, -++++:++:++eesseseerereeeeeereeeereeseee 85 xlvi a ee CONTENTS. Annual Variations— Mean Vertical Component,-++-++-+:++.seeseesssernenecseeereeeaecseeeeneeneeneenenees Mean Change of the Vertical Component from Month to Month,:-----...++. Effect of Disturbances on the Monthly Means, ---+-++..+++ssseessss severe scenes Difference of the Daily Means from the Monthly Means, ---+++++++++++++++08 Diurnal Ranges, --++eeseceeseee ec eceeseesec een eesee er cceeeseeseeceeecseeecaseeeewseenees Ranges of the Monthly Mean Diurnal Variations from all the Observations, and from Selected Days, Natehdiaiwtdiaate)st gainiafe Oui «'elatas ide aicle stab ie a tv afecia'e eeta riaiwiebtot Ts General Law of the Ranges of the Undisturbed Mean Diurnal Variation, Mean Difference of an Observation from the Monthly Mean,.---..+++-..+++++ Number of Observations greater than the Monthly Mean,.-+.---..+..++++++++ Monthly Variations— Mean Vertical Component, inhiete lodied aaa nad toed « ckicisivina ala aieiniesichin mamdiiene Meera oe Diurnal Ranges, -::ccessscoeseseceeeeccnseeeen cesses sssaeeceeersseeencesu ens cusseueasens Mean Difference of an Observation from the Monthly Mean, -..---+--.-.++-+- Diurnal Variations— Results from all the Observations, for each Month--++-+++++++sseseeeeeeeeeeeers Results from all the Observations, for Groups of Months,---.++--++-++++1+-+0 Results from Undisturbed Observations, for Groups of Months, «-:---+--.-- Effect of Disturbance on the Hourly Means, «--+++1+-+eeesseeeeeeseeeseeereeee ees Frequency of Positive and Negative Departures from the Hourly Mean Position, Pee ee ee ere errr Mean Difference of an Observation from the Monthly Mean Position for each Hour, ae da ota ulviaioln a'elatula'e v'diwialete aalu/a'sis’a ateltvin wie adla'wnminhahi/a siege] damistonl Mean Difference from Undisturbed Mean Positions for each Hour, -----+--. Variations with reference to the Moon’s Hour-Angle, «--++-++++++1-+1seereeeee Macnetic Dip— Places of Observation for Different Epochs and General Remarks, --------- Observations in 1849 on Original Dip-Pillar, --++--+--++--ssseeseeeeeeeeeeeseeeee Observations to determine Local Error, --+++++++++-se+ereeeeeeseceeeeeee eee eee ees Secular Change, ees lortieinta.> ola cieletsiviac madsen van Cusiaaln seasthes sense erste Result of Observations with Inclinometer in different Azimuths, -----.----+- Observations with the Inclinometer of the Royal Society of Edinburgh, --- Variations of Magnetic Dip, deduced from the two Component Magnetometers— Similarity between Results for Magnetic Dip and for Horizontal Com- POMENE, ccesrererereeee eer eeesceece eee eeeeeccneteeeeeeesaeerssccesseasetesceseceeeees Secular Change, -::+--sesseecsssessenceecrsseeeeece seen eneeeee eens sseeasecstareaeeans Effect of Disturbance on the Yearly Mean, ---+++..-+++s+eesseereeeeecenseeeneres Annual Period, from all the Observations, --++-++-+++s+++eseeeeseneeeneneeeeeeens Annual Period, from Undisturbed Observations, «+++++s++-eseenseeereeees reece Annual Variation of Ranges of Monthly Mean Diurnal Variation, -----.--- Variations of Magnetic Dip with the Moon’s Age,+-+--.+:+++s+-ssereesrreeese ees NO. Vill CONTENTS. Variations of Magnetic Dip with the Moon’s Declination,.--.-.+-+++-++-+---++» Remarks on the Variations of Ranges of Magnetic Dip,.--.--++++++++++++seeee+ Diurnal Variations— Results from all the Observations for each Month,.---..+-0++-++ssesseseseenenee Results from all the Observations, for Groups of Months,-----++++ --++++++++ Results from Undisturbed Observations, for Groups of Months,:....-------- Effect of Disturbance on the Hourly Means,---+-++++++-+seeeereeeeeeesseeeeeereee Variations with reference to the Moon’s Hour-Angle---.-.++++++++++s+seereenes Torat Magnetic Force— Absolute Value, SEDecPelace ceric Rcksncladctnde ne CUMEEeMMM eRe Uta caascs 60 ccsleneceremtecneas Secular Change, De ccloselapeacebenewanslenisincineeme ns ieeen nannies sivssc che es a c- ssenmuuscuicuniehic Effect of Disturbance on the Yearly Mean Valuie,.--.-.++-+--1++sesereeseeeneeees Annual Period,- Giecedovedvepaseescacunevenaccmmenementaaanicrs ces cccccescacdsionnccertent Effect of Disturbance on the Monthly Means,--+.-+++-+s++sessseeesenerseeee scenes Annual Variation of Ranges of Monthly Mean Diurnal Variation,.-----... Variations with Reference to the Moon’s Age,------+-++-+1+ssssesteseeseneesenens Variations with reference to the Moon’s Declination,-.--.++--+-++++++s+++++e0000 Remark on the Variations of Ranges of Total Force,...------++++++-+-seseeeeee Diurnal Variations— Results from all the Observations, for each Month,----+--+++-++++++0eseeeesee eee Results from all the Observations, for Groups of Months,.-.---.-.+-.+++-++++- Results from Undisturbed Observations, for Groups of Months,--.-------.-. Effect of Disturbance on the Hourly Means,..+++++++++++seseseseeeveevecerseeeeee Variations with reference to the Moon’s Hour-Angle,--+---++---+++++eeeeeeee eee Comsrnep Motions oF THE Macnetic NEEDLE— Process of Projection and General Remarks «-+----+++++++-++serrseeneeeesenene ees Annual Motions,--+---+-++-+++ Monthly Motions, Similarity of the Motions for the Positions of the Sun and Moon in De- CLINAGION «oe scnsncnadncsccnpysccevaccwosbeotyyirersvecsevccesacececcsseaness Bencasees Diurnal Motions, Rae a ct ae a ate coe eee EE ESRI eta Toetalaene'cisscciows.cnuwanensultsennementcts Foot-note on the Determination of the Epochs of Maximum and Minimum, Perimeters of the Figures of the Diurnal Motions for each Month,.--------- Perimeters of the Figures for Disturbed and Undisturbed Observations,--- Mean Angular Motions from Hour to Hour,--+:++++-+2+0++02s2seteeeeeetecs eee ees Diurnal Variation of Velccity of Diurnal Motion ‘and Relation to that of Disturbance, --+--+-ce-esceeeesececesreeeceecertereeeentec nee snecccsceaeeeeeeea sete: Variations in the Velocity of Motion not related to Variations of Tem- perature of the Air,s:.::-::seccsseeeeuee consecceensecereeeenerseeseceeneeses cee ees Relation of Points of Greatest and Least Velocity to the Astronomical Meridian,-------ssec-seeeececereeencesecescsaeasersceeenceetaesessuseussansscsassusees Saath ol eee CONTENTS. General Form and Turning Points of the Diurnal Motions,-+++-++++++++++++** Angular Distances between the Disturbed and Undisturbed Hourly Mean PORTIONS Me eetatensrn nea santcencar~cesausaznencnacesosentncesn ccs ( 24ST oct sage Motions with reference to the Moon’s Hour-Angle, «+-++-++r-+-ssrsrre-rerr Avrora BoREALIS— List of Aurore Boreales seen at Makerstoun in the years 1843-9,.---------- Additional Notes on Aurora Borealis seen im 184.7 —Q,-sceeeceeeeeee eee eee ere ees Diurnal Variations of Visible Frequency of the Aurora Borealis, --++++++++++ Annual Variation of Frequency of the Aurora Borealis, ---++++++rsrrereseeet Foot-note on Results of Mairan, Kimtz, and Hansteen,---+++-++#e+ssereesrte 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, ---+++:+se+essrrsrseeees Note on the Theory of the Aurora Borealis,::::-+:ssssessssrescnseterersesennen es MerrorotocicaL ResuLts— Temperature of the Air— Mean Temperature at Makerstoun, with Probable FError,yssecseseeeeeesrersee ees Arnual Varlation,.----c0r+-.22-s-cecccaccresnssensorenernaserents tae sc tenses Probable Error of the Mean Temperature for any Month,--++-+ssererers seers Annual Variation of the Diurnal Range of Temperature, and the Ranges of the Mean Diurnal Variations,------+----+-+---sceerssssseecreeeneteteee cess Differences of the Daily Mean Temperature from the Monthly Mean,------- Diurnal Variation of Temperature,--..-++1+-ssererrsrecerereceseestnstt sete Pressure of Aqueous Vapowr— Arnal Variationy--<-:2202220scceeeretenceeetenesercerensesnnnrec nsec cece oe eee OS Variations with Reference to the Moon’s Age and Declination,-+++++++++++++ Diurnal Variation,-:-.---..:ssecssesecesecessesnnccentseeetteresenr een cesses” Relative Humidity— Arnnual Variation,-<-+---20scecsssssecesntrcencnencecencesnnsnecseceneesznccceceeesse ees Variations with Reference to the Moon’s Age and Declination,-----++++++++-- Diurnal Variation,»..-.s.--scssesesrseceeeestenseserenserctcerseseeeseees eee eee" Atmospheric Pressure— Mean Atmospheric Pressure at Makerstoun,------++++++++ssrsrrsrsrrssreseeeeee Annnal Variation, and Probable Error for each Month, Foot-note on the Differences of Mean Pressure at Greenwich and Maker- StOUMy.ciesewstensmenmrannsocc-erocetssssesarsocstcsr oO tescbs cease aaah ea a hi Quarters giving greatest Range of Mean PessUTe,s++sessesersreee nesses tess eses Annual Variation of Differences of the Daily Mean from the Monthly Mean Pressures,:++++++-+++-seeseesssssnsrsersnsanacensaaancssensssenseeesss ses scenes NO. 163 165 167 169 170 171 172 172 173 175 1X PAGE lxxiii Ixxiii Ixxv lxxv lxxix lxxxi Ixxxi Ixxxi lxxxi Ixxxli 1xxxli lxxxili lxxxiv lxxxiv lxxxv lxxxv Ixxxvi lxxxvi lxxxvii lxxxvii lxxxvili lxxxix Ixxxix xe xe x¢i xel x¢ci xcii CONTENTS. No PAGE Annual Variation of the Diurnal Range of Atmospheric Pressure,:++++++++++ 193 xcii Variation of the Diurnal Range with the Moon’s Age,+---+++++ssss+++sseeeeees 194 xcili Variation of the Diurnal Range with the Moon’s Declination,..--++++..+++++ 195 xciii Diurnal Variation of the Atmospheric Pressure,---+++++++++++++++eseeee eee ree ees 196, ~—s-xciv. Amount of Oscillation in the Diurnal Variation,+.+++-+++++++:ssseeeseeeseneeseee 197 xcv Pressure and Direction of the Wind— Remark on the Observations from which Results are deduced,.----++++++++++++ 198 xcV Annual Variation of the Mean Pressure,+:++++++sse-e+ssererresereeeereeereneneeeee 199 xevi Variation of Pressure with the Moon’s Age,--+--++.+ssseserneteeeres seeeeeeeees 200 xevi Variation of Pressure with the Moon’s Declination,-+-+++++++++++++++eeeeeeeee es 201 xevi Diurnal Variation of the Mean Pressure,--:+-++++ssssseeereesecerenecesteeeetenees 902 xevll Annual Variation of the Number of Hours at which the Wind blew,------- 203 = xeviili Annual Variation of the Mean Pressure while blowing,.-+-++++++++++++++++++++ 204 =. xeviili Diurnal Variation of the Number of Hours at which the Wind blew,------- 205 = xviii Diurnal Variation of the Mean Pressure while blowing,.+++++--++++++s++++eee++ 206 = xeviii Yearly Mean Value and Direction of the Resultant Wind,--+---- ++++--++++++ 207 xcix Annual Variation of the Pressure and Direction of the Resultant Winds, 208 xcix Annual Variation of the Variability of the Wind, 209 Diurnal Variation of the Resultant Mean Pressure of the Wind,-----.-----+ 210 Diurnal Variation of the Direction of the Resultant Wind,--.+++---+++-+++-++ 211 ¢ Diurnal Variation of the Variability of the Wimd,-..----+++.+-+++eeerees seen ees 212 ci Times which the Wind blew from each Point of the Compass,---+--+++++-++++ 213 ci Sums of the Pressures for each Point of the Compass,.--+-+-+++++++++1s+seeeees 214 cii Mean Pressure while blowing for each Point of the Compass,--.+-+-+++++++++ 215 cii Motions of different Currents of Aitr— Processes adopted in obtaining the Results,.---.++++++++seeseseneeeeerenneer reece 216 cil Classification of Clouds and order of Reckoning of Motions,..--..+-.---++++++ 217 cil Explanation of Tabular Results, ---++++cesseceseeseseceeee eee seescceeeeee cee eeeeeees 218 cli Combined Results for each Current, «-----++:ess-:eeeeereeeene teen eceeen eee eeeeeeens 920 cil Resultant Direction of each Current, «-+-+++seess-sseeceverereeeeeeneees cs nenenenes 220 civ Comparison of Mean Upper Current with the Surface Current, -..-+----»-- 221 civ Comparison of Mean Highest Current with Surface Current,-.-.--+++++++++-- 222 civ General Conclusions, «+++++sessceseeececeseeesstesceree seen eeeeeeecesereeese ener eneaes 293 civ Extent of Sky Clouded— Mean Extent of Sky Clouded, --+eeeseeseeeneeeesrerecteesectencecncasnenss eae ensas 994 ev Annual Variation, .+-+-++-+scesercesecneenneetesecesenscsersceneeensnsccsaesseneerenenss 995 cv Variation with the Moon’s Age, -:-cesesesseeseessesseeessseeessnteeeeseeeecesenecs 226 cv Foot-note on Statement by Sir John Herschel,-----++0++-++++++++++ ree eeeeeereee evi Variation with the Moon’s Declination, +-+++++++++sseereesereeeeeesseeserenersees 228 evii Diurnal Variation,.-++-+-++seeceseeeseeececseeeatcecreceeteeraeeetecstearenecenasanarzes 929 evil 230 evili Ranges of the Diurnal Variation, ——— CONTENTS. NO. Quantity of Rain. Factors for converting Garden-Gauge Results into Observatory-Gauge Results, nana ease ne lnc icine mint in ieee ene mists Ween @/aieaeinaciesciateiseeisease tins eee 931 ‘Mean Yearly Amount of Rain,...-::++++---s0+0sssseeeeeeseeeseeeeesesseaseeseeeae ens 932 Greatest and Least Monthly Falls, «---2..-::::sesseeseseeeeseeeeseneeeessnegecs ees 233 Antial Variation,:-.+-++++seeesesesecerec eset secec ese eeeeneccscneteenssentreesentennes 2934 Amount of Rain with reference to the Moon’s Age,++.++e+s+sssssereessenseeeee 235 Dertainep Tastes oF MaGneticat Resutts ror 1845 anp 1846— Magnetic Declimation for 1845, +-.+--+---.sescece, fecccccvousceccnscrccetsccecteccecsesecescecrs Horizontal Component of Magnetic Force for 1845, «--+.++-ssesseesececneeeceeeseneeterene Vertical Component of Magnetic Force for 1845, -------:++--sseseeceeeeesecnenereeceneeeeenes Mineniietic: Digi trmmmeeetpeenea-v vac 5st ibe taees 259%: Re onugerietwan dente chs os Sep ORL Aes Total Magnetic Force for 1845, «..+:+sssee+essseeeeeeeeecesestcssenecatenesseeenaseeanecsreseees Daily Ranges of the Three Elements for 1845,.--+-++++---seeeseeeeeenesseeeceeeerteeeeeneeenes Magnetic Declination for 1846, ---seecer tere reece eee tees een cetera seer seen tereeeeaseeeeceteeeenes Horizontal Component of Magnetic Moree fOr 1 O46 cpp stenciasenausscaniinnslenssasiecsncalaunyles Vertical Component of Magnetic Force for 1846,--.----+++0e:sreessseeeercceeeseenerenneceees Magnetic Dip for 1846, ....-22..scececcenceccnccsnacccceserecucebasesenecensaucsssesesensnesergecses Total Magnetic Force for 1846, SCOP ane eaOna UavovneaenWileapumionvp oben ainsi Mitnaiee dub ace Cemebe eden 40™ a.m. 8" p.m.—11" p.m. 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.w. 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 April ; this does not appear to be the case, however, in the return of the minimum from 7" a.m. to before midnight, which occurs 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™ a.m., nearly equal minima oceurring at 11" p.m. and 6" 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 74 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. XXlll (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 :— TABLE 14.—Diurnal Variations of Westerly Declination for different periods, deduced from Days selected as free from irregular disturbance, in the Years 1844 and 1845. Six Months. Twelve Months. —0-99 — 0-99 — 1-05 — 1-28 ROO ONAUN KWOK OS —_ 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. Dee. Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Maximum, 04 35™ p.m. 12 5™ pM. 0» 55™ p.m. 0» 50™ p.m. 0» 30™ p.m. Minimum, 55 40™ a.m. 7h 40™ a.m. 65 45m a.m. 6" 35™ a.m. 7h 30™ a.m. Becondary Maximum, 9 21 G5 atwe te) aicscs.ec0d i) levdebcdeeers [of ~ deeddeaseces 2h 0m aM. Minimum, OW SRO Drees 1 SEL clon tell = Les Pie coast Ooh Wa Sara Bisie 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 25 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 34 4.m., than before the former and after the latter hour. MAG. AND MET. oBS. 1845 anp 1846. if 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, = 25° 17"06, 1845, = 25° 1132 Soo ters so nets from the hourly observations in the selected 120 days of 1844, = 25° 17°08 1845, = 25° 11°39 The effect of disturbances, therefore, on the yearly 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 02; 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. 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. Noy. About 1» 40™ p.m. 95 a.m. to 1" PM. 1 40™ p.m. 8» a.m. 8) 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 8 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. About 85 p.m—I12" pm. 62 p.m—ll* p.m. May, June. 11 p.m.—12> p.m. July, Aug, 95 p.m. 102 p.m. Sept. Oct. Nov. 8) p.m.—11" 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 537 a.m.and5}" p.m. 45 a.m.and 55p.m. 5% a.m.and63" p.m. 42 a.m. and53"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. =. Nov. Dec. Jan. 39-9 43-7 46-2 53-8 46-8 46-2 58-2 66-5 67-7 71-5 70-9 60:8 67-7 63:3 64-6 65-8 62-0 59-5 58-2 48:7 38-0 54.4 39-2 36-7 Feb. March. April. 47-1 49-0 51-0 51-0 53-6 55-6 66-7 65-4 59-5 70-6 64-7 62-1 65-4 68-0 64-7 66-7 70-6 52-3 49-0 47-1 45-1 44.4 44.4 May. June. July. 36-1 31-0 40-5 44-9 36-1 43-0 50-6 47-5 56-3 65-2 69-6 61-4 65-2 58-2 63-3 58-2 56-3 41:8 43-0 38-6 34-2 40-5 38-6 35:5 Aug. Sept. Oct. 32-3 Year. 40. The following are the epochs of maximum and minimum frequency of the positive or westerly excursions. From the Means of all the Observations. From the Means of the Undisturbed Days. Min. Max. Min. Max. Nov. Dec. Jan. 8) aM. 8) P.M. 11) p.m. 935 am. Feb. March, April. 105 a.m. 63 p.m. 9? P.M. 9® a.m.—4® p.m. May, June, July, 635 a.m. 9" pM. 8" p.m.—l1> a.m. 10” a.m. Aug. Sept. Oct. 62 a.m. 93 p.m. 10® p.m.—l1* a.m. 0» 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" s.m., and greatest from 6" p.at. to 10" 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 being 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. May. Aug. Nov. Feb. May. Aug. June. Sept. Dec. March, | June. Sept. July. Oct. Jan. April. | July. Oct. 101 305 259 339 107 253 157 f 215 177 159 141 172 225 134 286 116 294 118 344 80 335 77 260 66 260 98 250 88 250 99 268 81 244 109 197 108 157 113 123 125 97 168 70 194 52 170 62 158 87 220 RK OOM AUNrwWNr SO oe 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 a maximum at 0 Noon. 9h a.m. and 2 p.m. 10h a.m. 83 a.m. Isa 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 a maximum at 85—115 p.m. 9h pM. 123h a.m. 91> p.m. Isa minimum at 8" a.m. 7> a.m.—10® a.m. 10" a.m. 8» «.m.—0Oh Noon. ———— DIuRNAL VARIATIONS FOR THE MAGNETIC DECLINATION. XXVIl 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. Mean Westerly Difference. Mean Hasterly Difference. Mean Difference. Nov. | Feb. | May. | Aug. Noy. . | May. | Aug. - | Feb. | May. | Aug. | | Mar. | June. | Sept. ar. | Dec. y. | June. | Sept. || Year. . | Mar. | June. | Sept. .| July. | Oct. Jan. il.| July. | Oct. an. | April.| July. | Oct. | / = | ’ , 1-47| 1-80 || 1-62 -54| 1-80| 2-71 | -83| 2-36| 1-62] 2-16] 1-71|| 1- 16) 3- 2:07] 2:51] 2- . . : 2-03 | 2-01 -66 8 : 1-77 | 2:34 || 2.28 : E : 2-16 2.04 6 : + 1-36 | 1-94 1-63 || 1- : é 1-36] 1-63 2.73 4 + . 1-41} 1-49 3-84 |) 1- . . 1-25] 1-39 3-00 || 1- : : 1-21} 1-47 2.90 F : : 1-28} 1-64 2-67 || 2. . -24| 1-37] 1-59 1-93 || 1. . -06| 1-31] 1-50 1-64 || 1- -23| 1-10] 1-51] 1-38 : 1-29] 1-33 1-39] 1-56 1-52 Dee eee eee SAAROK ODN WwW N NONwWWOOWDNre YU SOU RR eK Oe DUNO SR OODOONANKRWNHOH SO — 43. Diurnal Variation of the Mean Excursions of the Declination Magnet, from the Monthly Mean Positions for cach 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 exeur- 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- tions for 1844, p. 350). The quantities in Table 18 have been termed mean differences, those in Table 19, mean disturbances ; the former being related to the means for all the observations, the latter to the means of the 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. Noy., Dec., Jan., 1° p.m. 10° p.m. 6h_9} p.m. 8" aM. 62-11" p.m. 5 aM. Feb., Mar., April, 2h p.m. 65114 p.m. 9b p.m. 7>_10 am. 91 p.w.—1) a.m. 6" aM. May, June, July, 84—11> a.m. 95 p.m. 1235 4m. 8am. & 55 p.m, 1232 a.m. & 11" a.m. 5-10" pm. Aug., Sept., Oct., 83> a.m. 92 pm. 10° pm. 82 am. 10° P.M. 5) pm, 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. oBs. 1845 anp 1846. g XXVill 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 2) p.mw.; 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. 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.a.: the average easterly excursion from the hourly mean of ail the obser- vations (Table 18) has the minimum decidedly marked at 6% p.m. 3d, The minimum westerly excursion oceurs about 95 p.m. in all the quarters. 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 little from 65 p.m. till midnight. 5th, The mean excursion, without reference to direction, has its greatest value earliest in winter, about 6" p.m. ; about 9 and 10" p.m, in the equinoctial quarters; and in summer there are two maxima of nearly equal value, immediately after midnight and at 115 a.m., with a secondary minimum about 6" a.m. 6th, The mean excursion has its least value about 5® to 6" 4 m. in winter and spring; a secondary mini- mum, as noted above, occurs about the same hour in summer, and 4" 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. 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 9° a.m. In the winter and spring quarters there is a tendency to a secondary minimum about 4» 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. Nov. | Feb. | May. =| Nov. | Feb. | May. g. H Feb. | May. | Aug. Dee. | Mar. | June. 4 . | Dec. | Mar. i al . | Mar. | June. | Sept. | Jan. | April.| July. : Jan. | April. A April.| July. | Oct. ’ , 1:47] 1-02) 1-56) 1-2 2.26 | 1-47} 1-17] 1- . 2-45 1-56| 1-09} 1. : 1-84 1-43| 1-50] 2. . 1.92 1-77| 1-92] 1. ; 1-38 1:56| 1-82] 2. é 1-39] 1-74 1:55] 1-72 1-83 1-83 2-22| 1-66 1-63 1-52 1-47 1-55 1-46 1-46 1-41 1-48 1-65 1-64 1-71 1-54 1-62 1:50 1-49 1:34 1-04 0-98 1-12 1-17 1-06 1-03 1-33 ao ae f2demweats BOODANIDON BWW I. ]- 1- lah 1 | 1 1 | 2 | 2. 2. 1- ]- 1.07 | i4| 1-05 || 0-86 Se SmonedhYheykaadwsnwtwbaanen WRONUTIUDAWSOUNOHIDBRABDRGAANE 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.s.; in the summer quarter, from 5" p.m. to 10" p.m.; and in autumn from 4" to 5" p.m. DIURNAL VARIATIONS FOR THE MAGNETIC DECLINATION. XX1X The least and greatest values of the probable error of an observation from the monthly mean of the hour, for Makerstoun in 1844 and 1845, were approximately as follow :— — 05-8 Greatest Probable Error, 64 p.m. = 1/8 = 0°8 92pm. = 17 006 15 am, & 102 aos, = 1-1 Sve) 9h p.m. = 1-6 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 that year: neglecting these rare and excessive disturbances however, the values given above cannot be far from the truth. Variation of Magnetic Declination with reference to the Moon's Howr-Angle—The following Table has been constructed from Table XI. 1844, p. 342, and Table IX., p. 6, of the present volume. TABLE 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. Winter Lunations. Summer Lunations. All the Lunations. 1844, 1845. Mean. 1844. 1845. Mean. 1844, 1845. || Mean. ‘ -—0-35 | —0-11 — 0-23 : + 0-36 —0-21 +0-10 —0-07 | —0-02 — 0-04 5 +0-27 sg +0-11 +0-11 +0-30 | —0-03 +0-13 . +0-34 : +0-:19 | +0-13 +0-02 +0-16 +0-18 D +0:13 + 0-09 +0-17 + 0-27 : —0-39 : +0-10 + 0-27 +0-33 . —0-11 E +0°:33 +0-28 + 0-36 E —0-28 s +0-45 +0-16 +0-19 D —0-08 D +013 — 0-02 —0-03 E — 0-33 b —0-25 —0-26 —0-40 +32 —0-14 . — 0:43 —0-15 — 0-42 —0-16 —0-30 —0-28 —0-32 H +0-31 : —0-24 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 transit; the minimum occurs between 4" and 5" before the superior transit. The group for each year gives almost 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 the inferior transit, however, is not nearly so distinctly marked in 1845 as in 1844, The range of the varia- tions 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 given. ‘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. HorizontaAL 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 Lamonv’s modification of Gauss’s method : the whole processes have been already described in the Introductions to the different volumes of Makerstoun Observations. The following 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. Duma ORsE a EBeae X Reduced to Mean Value of the Mean X for the Mean Bifilar for the Bifilar Reading Year. of each Year. Mean Bifilar Values of X. Reading. 1843. August 11 511.5 August 21 511-1 November 8 510-9 November 14 507-6 December 18 515-2 1844. February 17 524-6 March 23 520-8 May 29 535-7 August 5 540-7 December 26 539-5 December 30 534-9 1845. December 29 | 548-9 December 30 539-1 1846. February 16 553-2 April 14 | 562-3 B Ss [ 17 15 16 0 +1830 +418 0 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 equal values, and in each of the last three of these, the two minima are also nearly equal; from March till April, DIuRNAL VARIATIONS FOR THE HorizonTAL COMPONENT. XXXIX 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 10> 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. . Twelve April. A ; Months. KP COOMNAUARWNHRrO — 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. Minimum, 10 20m 4m. 102 10™ aM. 10 Om a.m. 9h 35™ a.m. 105 Om 4m. Maximum, 4h (Om p.m. 55 15m p.m. 65 20™ p.m. 5h 45m p.m. 5h 50™ p.m, Minimum, Qh 0” a.m. RO De Ua, Ee UO dia cS Se Qh 0m a.m. Maximum, 6h 10™ a.m. DEAD M vacate wheats sec JoeA A ahh decane 5h 30™ aM. From these means of groups, the forenoon minimum occurs earliest in July and August, and latest in December 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 XXVIII, 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. March. ‘ —________—_—|| Twelve April. I , Sept. to March Months. Feb. to Aug. 0-00 +0046 -— 0018 — 0010 +0057 +0139 +0227 +0178 + 0036 — 0338 — 0679 — 0907 — 0764 — 0478 — 0056 +0136 +0209 +0291 +0360 +0409 +0346 +0285 +0217 +0185 +0130 RKB OOCODNANRWNHK OS — 71. The following are the approximate epochs in apparent time deduced from Table 33. (See also the dotted curves, Plate IT.) Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov. Minimum, 105 45™ a.m. 102 25™ a.m. 9 55™ am. 9) 50™ a.m. 105 10™ a.m. Maximum, 5h 30™ p.m. 7h O™ pM. 6" 30™ p.m. 6» 55™ pM. 6» 35™ p.m. Minimum, 1» 30™ a.m. SQM cc. eadeesttetee 1> 55™ a.m, Maximum, 6> 35™ a.m. DEAS OM A Mem: 5. | aeRanc ae 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. DIURNAL VARIATIONS FOR THE HORIZONTAL COMPONENT. xli TABLE 34.—Differences of Disturbed and Undisturbed Diurnal Variations of the Horizontal Com- ponent of Magnetic Force, as deduced from Tables 32 and 33, exhibiting the effect of Irregular Disturbance on the Hourly Mean Positions. Six Months. Twelve iia ata? KODOONAUKR 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. 4> 40™ pM. 54 Om p.m. 5) 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 3" p.m. and 5" p.m. 2d, That the greatest effect of disturbance in diminishing the horizontal component occurs In Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov. About 12 aM. , 2) am. 2h 30™ a.m. 5h 40™ a.m. 11" p.m. 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 11» 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. In Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov. About 4% 4.0. 10? a.m. 88 p.m. 10h a.m. 8" pm. 1142 am. 83% p.m. Of> p.m. 832 pm. 11" a.m. 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 8h 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, for each Quarter, and for the Year. Mak. Mean || Dec. March. June. Sept. Year. Time. || Jan. April. July. Oct. h ra h m. || 12 12 63-3 59-7 49-4 59-5 | 58-0 0 12 52-5 51-9 50-6 51-9 51-7 13 12 62-0 64:3 50-6 55-7 || 58-1 1 12 52:5 48-7 51-3 47-5 50-0 14 12 65:8 68:8 50-0 58-9 60-9 2 12 55-7 46-1 46-2 53-2 50-3 15 12 60-8 60-4 50-6 56:3 57-0 3 12 55-7 39-0 47-5 45-0 46:8 16 12 55-7 58-5 56-3 53-2 55-9 4 12 63-3 45-5 46-2 41-8 49-2 12 48-1 51-9 44-9 51:3 49-0 12 59-5 50-6 46-8 53-2 52-5 , 55:7 52-6 12 58.2 57-8 45-6 57-0 54-6 12 65-2 60-4 48-7 | 58-9 58:3 12 59-5 59-1 525 | 60-1 57:8 20 12 || 51-9 21 12 55-7 SB OOnDIAUM = we Do oN oe mall a on a on nS bo i a 23 12 | 544 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, 1 a.m. Oh aM. 4h aM. 115 p.m. to 115 a.m. Qh aM. Minimum, 7» a.m. and 1" p.m. 3” pM. 85 p.m. 4b P.M. 3) P.M. 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 92 a.m., a secondary 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 monthly 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 54 pu. The minimum of positive frequency occurs about 7" 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. eels DIURNAL VARIATIONS FOR THE HORIZONTAL COMPONENT. xii TABLE 36.—Mean Difference of the Observations of the Horizontal Component of Magnetic Force, in 1844 and 1845, from the Monthly Means, at the corresponding Hour in each Year, as deduced from all the Regular Observations. Mean Positive Difference. Mean Negative Difference. Mean Difference. Nov. | Feb. | May. | Aug. Nov. | Feb. | May. | Aug. . | Feb. | May. | Aug. | | Dec. |. Mar. | June, | Sept. Year. - | Mar. | June, | Sept. . | Mar. | June,| Sept. | | Jan. | April.| July. | Oct. - | April.| July. | Oct. . |April.| July. | Oct. 0-00 0-00 0-00 0-00 0-00 0-00 0-00 ; ; 0-00 ooo | 0496 | 0650 | 0425 | 0538 0956 | 0417 | 0790 B 0774 | 0421 0431 | 0702 | 0413 | 0512 1276 | 0421 | 0638 Z 5 0906 | 0417 0568 | 0807 | 0385 | 0505 0385 | 0727 1141 | 0385 0395 | 0567 | 0463 | 0415 |) | 38 | 0675 | 0539 0686 | 0468 0392 | 0536 | 0410 | 0436 0532 | 0491 0627 | 0463 0405 | 0583 | 0369 | 0487 0442 | 0812 2 | 0665 | 0402 0416 | 0403 | 0414 | 0534 0439 | 0708 0427 | 0426 0404 | 0451 | 0472 | 0527 0445 | 0684 0514 | 0458 0475 | 0506 | 0606 0477 | 0820 0561 | 0491 0529 | 0429 | 0573 0456 | 0700 0651 | 0442 0503 | 0510 | 0546 0541 | 0873 0599 | 0525 0506 | 0555 | 0554 59: 0512 | 0749 0577 | 0533 0529 | 0544 | 0588 5) 0555 | 0637 De 0550 | 0549 0492 | 0529 | 0608 0562 | 0550 | 0477 | 0545 0528 | 0592 | 0607 0505 | 0684 0486 | 0545 0692 | 0620 | 0723 3 | 0561 | 0591 5) 0540 | 0589 0632 | 0592 | 0837 5) 0462 | 0606 552 | 0575 | 0545 0611 | 0472/0591 0511 | 0484 0605 | 0491 0552 | 0512 | 0456 0485 0574 | 0512 0482 | 0480 | 0539 0607 0487 | 0451 0527 | 0433 | 0540 0673 J 0595 | 0368 0615 | 0426 | 0533 5 2 0707 0713 | 0388 0591 | 0411 | 0465 0670 0715 | 0399 0558 | 0400 | 0514 0771 0658 | 0420 KF OOODNaupwnwnoreo _—a— 1st, 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, — 65 am. —7> aM. 2) XM. —3! am —5> am. Maximum, . 113% a.m. 33” pm. +3) pM. +4" pM. +42) p.m. Minimum, — 8) pie 72 PM. Bod ceaeeiades eneGemasay Maximum, + 63> Pm. +2) am. A maximum occurs in each quarter between 3" p.m. and 6? p.m., and the minimum occurs in each quarter between 25 a.m. and 6" a.m.; there are, however, several points of opposition: thus, the principal minimum in 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. P Nov. Dec. Jan. Feb. March, April. May, June, July. Aug. Sept. Oct. Year. Maximum, +113 p.m. +2) aM. +35 aM. +1135 p.m. + 27 am. Minimum, — 635 a.m. 62 a.m. 72 aM. — 33>am. — 65 a.m. Maximum, 10° a.m. 92 aM. +15 pM. +105 a.m. 102 a.m. Minimum, 2h PM. —2) pM. — 83" p.m. — 53° pM, — 22 px. A principal maximum occurs in each quarter betwixt 11 p.m. and 35 4.m.; a secondary or principal maximum occurs betwixt 9" 4m. and 14pm. The least values of the negative mean difference occurs about the same hours in summer as the greatest values occur in winter, namely, between 85 p.m. and midnight. MAG. AND MeT. ops. 1845 anv 1846. U 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 am. +2) pM. 11> p.m. Minimum, — 635 a.m. —6> a.m, to 6 p.m. —9) pM. 332 aM. Maximum, 10" «a.m. o00 cee seclcasinee cesses bus Pach elvdiciae we 105 a.m. Minimum, 3" pom. eae cee ens tee cen ee cee cce see cee cee eee 6h P.M. 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.t., 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 principal 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 64 p.m., while the greatest values occur in the former between 8" a.m. and 4” pw. 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 :— SPEUISy mates jeer GRPALME was GP BIMGy 5 soucnideed eee REMEe cata es af seede 0:00 0b praese see. -see on eaepeee Summer, ......... OBrprnc! cae OP ASMP oie Par eR REC EI Aga alo ce voeer OPO OO Sh raes-h spit caste cee eee ‘Acutumn;: 32 ands 42 arary amdi6) wins, e.2essh cos eee cedcldes Seach s 0:0004 ..... ueies eekk ae 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 XXVL., 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. Hour Angle. 1844, 1845. oo 8.44, 1845. Mean. | 1844. 1845, || Mean. 0-00 0-00 | 0: 5 0-00 | 0-00 0-00 0-00 0-00 —0066 | —0018 | 2 +0050) +0039 | —0019 | +0014 | —0002 —0132 | +0131 2 +0163 , +0091 | —0056 | +0147 | +0045 —0059 | —0107 +0081 || +0049 | —0021 | —0019 | —0020 — 0046 | —0046 | —0004 || —0016 | —0037 | —0026 | —0031 +0004 | —0112 | —0182 || —0121 | —0028 | —0143 || —0085 —0036 | —0021 2} +0029 || +0008 | —0023 | +0003 | —0010 +0122 | +0029 | +0102 || +0093 | +0104 | +0063 || +0083 +0099 | +0074 | 5) +0092 || +0124 | +0128 | +0083 | +0105 —0001 | +0123 | d —0039 || —0005 | +0014 | +0049 || +0031 +0093 | +0047 | 3 | —0102 | —0078 | +0014 | —0021 || —0003 +0065 | —0025 2 —0130 || —0128 | —0031 | —0073 || —0052 —0028 | —0081 | : —0055 || —0056 | —0044 | —0068 || —0056 0 5 ) 5 | ty) 5 0 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 little error in epochs; that result from the last column of the Table is as follows :— A maximum of the horizontal component about 1} hours after the inferior transit. A minimum 3 hours before the superior transit. A maximum .,, 2 hours after the superior transit. A minimum 8 hours after the superior transit. Or 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 larger 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. Month. 1842. 1844. 1845. 1847. 1848. January 012155 | -009905 | -007838 | -005904)| -003917| -002523 |[-001880]| -001157 February -011988 | -009708 | 007458 | -005616)| -003737 | -002636) .001800| -001004 March -011495 | -009325 | .007341 | -005475| -003663 | -002659| -001684| -000747 April -011446 |) -008992 | -007384| -005361| -003526| -002668| -001379| -000537 May -011323 | -008804 | -007062| -005192) -003603| -002599)| -001085| -000472 June -011167 | -008878| -006847 | -005034| -003936| -002488 | -000936| -000467 July ‘010883 | -008732| -006552| -004740| -003839| -002415| -001561] -000314 August -010797 | -008562 | -006341 | -004643 | -003678| -002184| -001197| -000079 September -010672) -008158 | -006267 | -004534)| -003584]| -002141| -000705| -000129 October -010471 | -008138}| .006129 | -004310| -003206| -002299| -001354] -000127 November -010355 | -008109 | -006155 | 004307 | -002899| -002344| -001361 | -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 oceupied 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 f Vertical i Golipottent. Year to Year. | Mean of Hach | During Hach Four Years, Year. 0-011073 0:002327 -008774 0:002299 2108 -006781 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.) 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 XXXVII., p. 21, of this volume), and compare these values with those obtained from all the ordimary 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 i eel 3): a age aa Baan haa an BeacreddecoocunbSddudecodarica: 07>: oA agbS ae aeBE Boose asaraccaadlad 0-:000089 The effect of disturbance in both years was to diminish the mean value of the vertical component on the average by 0000030. 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. TABLE 40.—Monthly Variations of the Vertical Component of Magnetic Force, free from Regular Secular Change. Years March. June. | July. Aug. | Sept. Oct. Noy. Dee. Prefix. 0-000 0-000 0000 0-000 0-000 0-000 0-000 | 0-000 0-000 0-000 0-000 0-000 1843-6 |+086 —030 |—064 |—054 |—060 |+094 |+031 |+016 |—009 |—054 |+013 |+028 1842-7-8-9 ||—014 |+027 |—071 |—097 |—121 |—113 |+028 |—088 |—127 |4+137 |+229 |+215 1842-9 +036 |—001 |—068 |—075 |—090 |—010 |+030 |= 036 — 068 |+041 |+121 |4+122 1842-7 —007 —046 |—099 |—052 = 80 +065 |+011 |—005 |—002 |+008 |+088 |+079 | | 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 in 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 isa 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. ANNUAL VARIATIONS FOR THE VERTICAL COMPONENT OF MAGNETIC Force. xlvii 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. | Dec. | Jan. Feb. | March | April | May | June | July | Aug. | Sept. Oct. Nov. Years. to to | to to to to to to to to Jan. Feb. | March. | April.| May. | June. | July. | Aug. | Sept. Oct. Nov. Dee. Prefix. 0-000 0-000 | 0-000 0-000 0000 0:000 0-000 0°000 0-000 0-000 0000 0-000 0-000 1843-6 ||—219 |—261 —178 |—135 |—150 |4+008 |—208 |—160 |—170 |—190 |—078 |—129 | —156 1842-9 ||—205 |—166 |—194 |—137 |—144 |—048 |—090 |—194 |-161 |—019 |—049 |—128 | —128 1842-7 a —183 |—197 |—097 |—132 |—039 |—196 |—159 |—141 |—134 |—064 |—153 aRee | | 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 magnetic force is a maximum near the solstices and a minimum near the equinowes. 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- able 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 find the latter less (—) or greater (+) by the following quantities. Year. Prefix. | Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dee. 1844, 0-000 | —039 4096 —124 +4003 —071 —031 —031 —020 —048 —043 4006 +4051 1845, 0-000 | —068 —036 —039 —086 —061 +018 —049 —091 —049 —046 +4008 +4024 Mean, 0:000 | —053 +030 —081 —041 —066 —006 —040 —055 —048 —044 +007 +037 The numbers differ considerably in some cases for the same month in the two years; a greater number of 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. 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 greatest 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, January, and May, and least in March and July. 3d, That the mean positive departure is most in excess of the mean negative departure in February, while the latter is most in excess of the former in January, 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 Baiceista iciolas pie Wo ela nie Nath aie Rene Rin). Pistalap pyautal a visinaists sapiatate’s bya sselstdblaveteln/a Msteia ora esaraje «cent afs 1845 = 0:000117 EEAtBioy = seis Saale Selec PRR MME REAM Eres Hae A latte 02 adnisslsdoniedeas ope siepl-obeielidh noble isomeap 1846 = 0-000131 COUCSEBDEL JOBORBE ance sto becnacbbaqsoceioecbe: ACETATE DeCLEM OCD CURE Ctr nt Prose Cr Ce aornD 3 years = 0:000118 MAG, AND MET. obs. 1845 anp 1846. m xlviii 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. Caaetnylstan Diff. of oe Month. ] The ee Mean | Depart. 1844. | 1845. | 1846. | Mean. || 1844. | 1845. | 1846. | Mean. 1844. | 1845. | 1846, | Mean. TABLE 43.—Mean Diurnal Range of the Vertical Component of Magnetic Force, as deduced from | the Ordinary Daily Observations. | Year. || Jan. Feb. | March, | April. | May. Jone: | July. | Aug. | Sept. Oct. Nov. Dec. 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 1843 |, 0330 | 0374 | 0480 | 0684 | 0562 | 0396 | 0490 | 0473 | 0502 | 0444 | 0305 | 0364 | 1844 || 0481 | 0584 | 1202 | 1164 | 0830 | 0433 | 0522 | 0944 | 0936 | 1058 | 1034 | 0489 | 0806 1845 | 0812 | 0630 | 0849 | 0859 | 0662 | 0461 | 0537 | 0797 | 0924 | 0601 | 0497 | 0504 | 1846 | 0251 | 0310 | 0501 | 0811 | 0876 | 0681 | 1096 | 1204 | 1445 | 1098 | 0871 | 0332 | 0793 i | | ; || | | . ‘eae 0290 | 0342 | 0490 | 0747 | 0719 | 0538 | 0793 | 0838 | 0973 | 071 | 0588 | 0348 | 0621 3 | | | | | | ‘eect 0646 | 0607 | 1025 1011 | 0746 | 0447 | 0529 | 0870 | 0930 | 0829 | 0765 | 0496 | 0742 1| | | | | | | | i} | | seat 0468 | 0474 0758 0879 | 0732 0493 | 0661 | 0854 0952 | 0800 | 0677 | 0422 | 0682 | | : | 91. Annual Variation of the Diurnal Ranges of the Vertical Component of Magnetic Force — From the num- bers in Table 43, 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.) Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec. Mean. 1844, 0496 0729 1373 1827 0964 0442 0545 1064 1050 1171 1182 0522 0905 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 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 less than in the cases of the magnetic declination and horizontal component. = ae 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 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 || 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 | 0254 | 0293 | 0464 | 0677 | 0365 | 0296 | 0355 || 0399 1846 0181 | 0168 | 0360 | 0588 | 0606 | 0403 | 0776 | 0807 | 0740 | 0863 | 0601 | 0177 | 0479 | | aa 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. June, July. Aug. Sept. Oct. Nov. Dec. Year. 0-00 | 0124 0124 0180 0186 0228 02388 0196 0190 0257 0209 0167 0182 0136 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. 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 from 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 Howr.—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 1230) Mapmeeoteee 4.) 20a tad tes, y 172) 191842471 5199). 1235) 184 1845, 0-000 192 ts7 56 175. 174 117, 137,167 210 139 168 208 | 167 Mean, 0-000 157 157 225 200 188 130 187 170 200 1938 183 165 | 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. June. July. Aug. Sept. Oct. Nov. Dec. | Mean. 1844, 53:0 49:5 57-7 498 52:5 55-7 55:4 52:0 55:0 50:0 465 40-7 | 51-5 1845, 55:7 549 558 59:3 548 515 543 574 506 56:3 53:5 43:2 | 53:9 Mean, 544 52:2 56°7 545 536 536 548 54:7 52: 531 50:0 41:9 | 52:7 1 GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS. 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; in November the num- bers of positive and negative departures are equal, and in December the greatest difference occurs between the positive and negative departures, the latter being greater than the former by 16 in 100. Mon tuity VARIATIONS FOR THE VERTICAL COMPONENT. TABLE 45.—Mean Variations of the Vertical Component of Magnetic Force free from Regular Secular Change. with reference to the Moon’s Age and Declination. Moon’s Age. d. a. 14—16 17—20 21—24 25-—28 29— 1 2— 5 6— 9 10—13 0-00 —0016 | +0012 /40013 (+0031 || — 0027 '—0010 +0027 0028 0-00 — 0062 — 0002 +0044 +0015 +0008 +0010 +0031 | — 0042 After Moon farthest North. eee sd. 2i— 1 2— 5 6— 8 || 9—12 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; the means for 3 or 4 days are given, positive when greater than the mean for the year, and negative when less. 96. The conclusions from the means of 4 years in Table 45, are,— 1st, 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 7 days after conjunction ; 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. 2d, That the vertical component is a maximum when the moon is farthest north, and also when it is farthest south, and between these epochs it is a minimum; the minima occurring when the moon is rather south of the equator. This result is shewn, though with some irregularity, in the numbers for each year, It should be remembered, in glancing over these Tables, that the number which indicates a maximum may haye the negative sign, and that which indicates a minimum may have the positive sign; thus, in 1845 the prin- cipal maximum occurs about 4 days after the moon’s greatest south declination, the secondary maximum oceurs when the moon is farthest north, and the minima occur when the moon is about 3 days north 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. TabuE 46.—Diurnal Range of the Vertical Component of Magnetic Force, with reference to the Moon’s Age and Declination. After Moon farthest North. 1844. | 1845. 1843, | 1844. | 1845. Mean. 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 a 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 | Moon | Varia- farthest Mean. | tions, | | 0-00 0159 ||—0016 0191 ||+0016 0171 || —0004 0170 ||—0005 0154 ||—0021 0199 | +0024 0165 ||—0010 0188 |+0013 | | 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 XLII., 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. h. m. h. m. h. m, h. m. h. m. h. m. Lh m. h. m. h. m. h. m. h m. h. m. Max. +7 5 +525 +510 +60 +6 0 +620 4520 +60+5 5 +4 0 +615 + 6 45 Mine -14 0 -14 0 -14 0 -1215 —13 46 13 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. in each 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. 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 anv 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. Mak. | Mean Jan. Feb. | March.| April. | May. | June. | July, | Aug. | Sept. Oct. Noy. Dec. Time. _ i) _ eo So o rq a oS So Co = f=) o = 4 So oS Om p.m. 55 40™ p.m. 45 25™ p.m. Minimum, 3h 40™ aM. 12> 10™ a.m. 1h 45m a.m. 2h 10™ a.m. 25 30™ a.m. Maximum, 8» 40™ a.m. 8 Om a.m. 8h 35™ a.m. Minimum, 02 0™ Noon. 0h O™ Noon. 115 45™ a.m, 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. TABLE 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. | | Six Months. | Mak. Dec. March. May. July. Sept. —________——_|| Twelve cae | phe April. June. Aug. ae Sept. to March Months, Feb. to Aug. h m 0-00 000 0) | 0-00 0-00 0-00 0-00 12 13 —0018 | —0065 | —0063 | —0069 | —0079 || —0048 | —0066 — 0057 13 13 || —0023 | —0069 | —0056 | —0071 | —0081 —0052 | —0065 — 0058 14 13 || —0028 | —0038 | —0038 | —0060 | —0070 || —0049 | —0045 — 0047 15 13 | —0035 | —0026 | —0003 | —0031 | —0067 —0051 | —0020 || —0035 16 13 || —0040 | —0032 | +0030 | +0011 | —0063 —0051 | +0003 — 0024 17 13 —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 21 13 | —0034 | +0052 | +0017 | +0030 | +0021 || —0006 | +0033 || +0013 —0014 | —0034 | —0112 | —0071 | —0012 | —0013 | —0072 || —0043 —0003 | —0084 | —0126 | —0099 | —0018 | —0010 | —0103 || —0057 +0015 | —0058 | —0099 | —0081 | +0014 || +0014 | —0079 || —0032 — 0034 || +0010 || +0065 | +0026 | —0007 | +0018 | +0106 || +0085 | +0012 ||- +0049 13 || +0066 | +0070 | +0045 | +0071 | +0119 || +0092 } +0062 || +0077 13 || +0049 |} +0083 | +0072 | +0086 | +0100 | +0074 | +0080 || +0077 | +0075 || +0065 | +0039 | +0051 | +0065 | +0049 | +0049 || +0044 | +0055 || +0049 +0036 | +0033 | +0051 | +0031 | +0038 || +0037 | +0038 || +0037 13 | +0038 | +0020 | +0018 | —0005 | +0004 || +0021 | +0011 || +0016 | | + S S wo ! S S S i} | S S or w I S S ee S + So S aD oo + Ss S or oO | 22 13 | —0025 | 40017 | —0047 | —0004 | +0002 | —oo11 | —o0011 || —0011 | | | + So o nm o + So o a So + (=) Oo ~~ ao + (=) So 10™ p.m. 4h 10™ pm. Minimum, 65 40™ a.m. 12 0m a.m. 122 20™ a.m. 125 40™ a.m. 125 55™ am. Maximum, 8» 30™ a.m. 7h Om a.m. 6" 55™ aM, 9» 10™ a.m. Minimum, 0h 20™ p.m. 0 Om Noon. © 0? 20™ p.m. 02 5™ pm. Hence, in the undisturbed diurnal variation, the maximum of the vertical component occurs earliest in the months 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 oceur 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 0000005 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. Dec. | March. Be Twelve hay April. s.| 4 Months. 00 | —0057 | —0052 || —0073 | —0067 —0059 —0055 — 0038 — 0022 —0021 —0011 | —0010 +0001 +0006 +0014 +0024 +0051 +0062 +0094 +0109 +0096 +0068 | +0022 | —0019 | —0050 | KBECOnDNAUHRWNHS — 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 6" 15™ p.m, 6h Om p.m, 6» 30™ p.m. 6" 0™ p.m. 5» 30™ p.m. DIURNAL VARIATIONS FOR THE VERTICAL COMPONENT OF MAGNETIC FORCE. lv Throughout the year, therefore, the greatest effect of disturbance in increasing the vertical component occurs near 64 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 In Dec. Jan. Feb. March, April. May, June. July, Aug. Sept. Oct. Nov. About 2» 30™ a.m. 14 40™ aM. 2) 50™ a.m. Q> 45m a.m. 35 30™ a.m. The greatest effect in diminishing the vertical component occurs throughout the year between 13" and 33" 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. About 1124. & 93hp.M. 10" am. & 93" pM. 9am. & 10Z4P.M. 102% a.m. & 93" pM. 91" a.m, & 92 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 a 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. Qh__4h au, Qh__5h a.m. 11” p.m.—6" a.m. Minimum, 5) eM. 5> pm. 5} p.m. 53> pm. Tt appears, therefore, that the number of positive departures from the mean of all the observations for the hour is least about 55 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 243" a.m. Diurnal Variation of the Mean Differences of the Value of the Vertical Component from its Monthly Mean Value at the corresponding Houwr.—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 anp 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, Nov. | Feb. | May. | Aug. Nov. | Feb. | May. | Aug. . | Feb. | May. | Aug. Dec. | Mar. | June. | Sept. || Year. | Dec. | Mar. | June. | Sept. . | Mar. | June.) Sept. Jan. | April.) July. | Oct. Jan. | April.) July. | Oct. . | April.| July. | Oct. || 0-00 0°00 0-00 0-00 || 0-00 0-00 0-00 000 || - 0-00 0-00 | 0-00 0159 | 0229 | 0151 | 0187 0199 | 0533 | 0208 | 0379 0320 | 0175 | 0250 0147 | 0222 | 0183 | 0187 0191 0431 | 0252 | 0379 0293 | 0212 | 0250 || 0138 0226 0197 0259 | 0567 | 0283 | 0400 0323 | 0215 | 0264 || 0142 | 0203 | 0206 0196 | 0497 | 0293 | 0409 0288 | 0223 | 0274 0136 | 0185 0214 0195 | 0487 | 0263 | 0389 | 0268 | 0192 | 0276 0139 | 0173 | 0181 0185 | 0403 | 0237 | 0351 0242 | 0180 | 0239 0135 | 0148 | 0153 0179 | 0274 | 0201 | 0304 0192 0165 | 0204 0134 | 0124 | 0143 d 0151 | 0171 | 0167 | 0198 | 0144 | 0149 | 0166 0133 | 0101 31 | 0130 0141 | 0145 | 0154 | 0156 0119 | 0142 | 0142 || 0125 | 0097 0120 0147 | 0126 | 0160 | 0122 0110 | 0138 | 0121 0120 0101 2/0111 0141 | 0112) 0137 | 0120 0106 | 0129 | 0115 || 0120 | 0115 0112 0120 0124 | 0106 0115 | 0128 | 0109 0137 | 0157 3 | 0163 0122) 0131 | 0121 | 0111 0143 | 0122 | 0132 0140 | 0146 0180 0127 0125 | 0123 0134 | 0120 | 0146 | 0163 | 0174 0183 0123 0135 | 0133 0150 | 0123 | 0154), 0289 0251 31 | 0246 0155 0139 | 0157 p 0183 | 0135 | 0192 0333 0260 36 | 0282 0179 0147 | 0180, 0182 | 0156 0220 | 0392 0368 0359 0189 0152 | 0198 0243 | 0166 | 0255 0447 | 0341 0285 ¢ 0187 0151 0157 2 0242 | 0157 | 0202) 0336 | 0227 2/0213 0166 0130 | 0175|0140 | 0175 | | 0209 | 0153 | 0124 | 0131 0131 0122) | 0139 0123 0131 | 0172 | 0131 | 0110 0138 0119 018 0143 | 0113 | 0137 | || 0150 | 0160, O114 0176 | 0246 | 0121 0194 | 0111 | 0142 0150 | 0150 0148 0199 | 0273 | 0137 0194 | 0125 | 0203 — 5 hs KBOCOCONOAUKWNK OWN 105. The approximate epochs of maxima and minima for the mean positive and negative differences, the principal being indicated by + and —, are as follow :— Mean Positive Difference. Mean Negative Difference. SS OO _—_—_——_—_——— ——— Min. Max. Min. Max. Min. Max. Min. Max, Nov. Dec. Jan. —1045 a.m. 42625) Panes) py. Se. ee Bee ens — 0% Noon. 545 p.m. 835 pM. +245 a.m. Feb. Mar. April, — 9}> A.M. +5)> P.M. 9b P.M, lam. —10}> a.m. 65 pm. Sj) P.M. +2}> aM. May, June, July, 2h PM. +55 pM. —10 pm. +24 a.m. — 0» Noon. 595 p.m. —9" P.M. +235 aM. Aug. Sept. Oct. —10}" a.m. +55 pM. — 945 PM. dham. —11}> am. 5b pM. 68h PM. 6+ oh AM. 106. The mean positive difference has two maxima and two minima in each quarter excepting winter ; the principal maximum occurs between 5h 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 smal] 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 in 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, 1st), 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 DIURNAL VARIATIONS FOR THE VERTICAL COMPONENT OF MAGNETIC Force. vii 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. —11) a.m. +6" PM. gh pM. 1? a.m. Spring—Feb. March, April, —10® a.m. 53> p.m. 83" p.m. +135 am. Summer—May, June, July, 1, pM. 52 pM. —10" pm. +35 a.m. Autumn—aAug. Sept. Oct. —1lb am. 5> 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 a.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" .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 in 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. Moon's Winter Lunations. Summer Lunations. All the Lunations. Hour-” Angle. 1844. 1845, 2 i 1844, | 1845, Mean. 1844. | 1845. || Mean. 0-00 0-00 1 o 0-00 | 0-00 0-00 0-00 0-00 || 0-00 —0054 | +0002 +0017 +0012 | —0019 } +0005 || —0007 —0086 | +0013 — 0009 +0003 | —0047 +0014 || —0016 | —0069 | —0039 |) —0014 0000 } —0042 | —0015 — 0028 — 0071 | —0029 | — 0022 g —0010 | —0046 —0014 | —0030 —0058 | —0031 — 0031 | —0025 | —0045 —0025 | —0035 —0007 | +0002 | — 0009 — 0005 —0008 | +0001 — 0003 / +0059 | +0030 || — 0018 —0004 | +0020 , +0021 | +0020 | +0107 | +0038 p +0007 +0013 |.+0058 | +0030 | +0044 +0094 | +0036 | ) +0039 +0020 | +0067 | +0020 +0043 | +0049 | +0021 | d +0017 —0001 } +0033 | +0002 | +0017 +0043 | —0014 +0007 —0010 | +0025 | —0021 +0002 | —0004 | —0025 +0015 +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. Oe O™ pM. 61 20™ p.m, 5» 30™ p.m. — 55 35™ p.m. Maximum, Qh 5™ a.m, Qh 10™ a.m. tee ete eee eee eee see ereeet ee se 12 55™ a.m. Minimum, — 65 5™ a.m. 5» 45™ aM. ste eee cee see eee tee eae eee cee ees 4b 55™ a.m. 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. 130. The approximate epochs of maxima and minima in apparent time for the undisturbed diurnal varia- tions, are as follow :— Dec. Jan. Feb. March, April. May, June. July, Aug. Sept Oct. Nov. Maximum, +105 45m™a mM. +105 20™ a.m. 9h 50™ aM. 9h 45™ a.m. +105 15™ a.m. Minimum, 5195m pm. — 7h 5m pm, 64 30™ p.m. 7h Om p.m. — 65 45™ pM. Maximum, 1h 35™ a.m. Sh, DOM aciiin aiy Setueeeteestukt well ovluesewhpeaete 1 55™ a.m. Minimum, — 6% 25m a.m, BE TOMO ARM ci Maree eee ee ey) VO wiatcacdoemm asics 5» 5™ aM. 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 occurs latest near the equinoxes ; it occurs rather earlier at the winter than at the summer solstice. (See the Dotted Curves, Plate IV.) DrIvRNAL VARIATIONS FOR THE MAGNETIC Dip. Ixiii TasLeE 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 to Aug. | Twelve | Months. } — 0-350 — 0-223 — 0-086 +0-012 + 0-069 + 0-163 +0-754 + 1-300 +1-719 +1-851 + 0-837 +0-174 — 0-286 — 0-686 — 0-750 — 1-008 —1-117 — 1-166 — 0-990 — 0-806 — 0-702 — 0-579 KOODNTIMAUNURWNKe OO _a— +0-396 || + 1-463 || 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. RBODOONIauRWwNre Oo — MAG. AND MET. oBs. 1845 ann 1846. Twelve Months. 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 :— 1st, The greatest effect of disturbance in increasing the magnetic dip occurs In Dec, Jan. Feb. March, April. May, June. July, Aug. Sept. Oct Nov. 123” a.m. 13> a.m. h a gyn 9? a.m. 95 PM. sae { 93> aM. 835 a.m. ee 92 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. Noy. 4" pM. 4) p.m 5b PM. h h M. b bh About {8 A.M, and 3" p.m. ree Pig a 12" pu 335 a.m. 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 10% a.M., 7) P.M., 3 A.M. 7% a.M., 10> a.M., 75 P.M. Noon, 95 p.m. 15 p.m., 85 P.M. 10> a.M., 6» P.M., 1» A.M. The best defined hours are those from 6" p.m. to 92 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. 2 Winter Lunations. Summer Lunations. All the Lunations. Moon’s Angle. | : 5. , , 1845. Mean. : 1845. || Mean. Hour- | - Fe ’ -045 | S = i) b+++1 Beas ed ++t41 Heke tt a 132. Variations of the Magnetic Dip with Reference to the Moon's Howr-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 Junations 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 magnetic dip is a minimum about 1 hour after the moon's inferior transit. weet eeee ene eee ee maximum about 84 hours before the moon’s superior transit. minimum about 23 hours after the moon’s superior transit. maximum about 8 hours after the moon’s superior transit. ANNUAL VARIATIONS OF THE TOTAL MAGNETIC FORCE. lxv The winter lunations for 1844 agree with this result, in having a minimum immediately after the inferior transit, but not otherwise; this difference, it is considered, is due to disturbances. (See No. 80.) . ToTaAL 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 magnetometer, and it is probable that the secular change from that instrument is not to be trusted (No. 84); 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.) Prefix. 0-000 Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dee. +099 —013 —074 —075 —034 +4120 +4052 —001 -—049 —087 +011 4048 From these numbers, the total magnetic force at Makerstoun is a maximum about the solstices, and a minimum immediately after the equinoxes ies Plate VI.) 137. The monthly means deduced from all the hourly observations in 1844 and 1845, were greater (+) or less (—) than those obtained from the days selected as nearly free from disturbance by the following quantities. (See Nos. 57 and 89.) : Prefix. Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dee. 0-000 | —069 +001 —106 —060 —062 —003 —037 —061 —052 —078 —008 +002 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 epochs as that obtained from all the days. 138. Annual Variation of the Ranges of the Monthly Mean Diurnal Variation of the Total Magnetic Force. The following are the ranges of the mean diurnal variation for each month, as obtained from Table 62, deduced from four years’ observations. Prefix. | Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Novy. Dec. 0-000 ! 319 291 612 821 701 546 663 738 715 521 443 298 The diurnal range of the total force was least in the three months, December, January, and February, and it was 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. 0-000 Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec. 112 151 277 398 489 449 448 389 409 321 176 154 The range of the nearly undisturbed mean diurnal variation was least in January 1844-5, and it was greatest in May, but it is probable that the range is nearly constant while the sun is north of the equator, and that 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- . Ixvi GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS. lowing quantities, 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. (Prefix 0:000.) Moon’s Age, 14a_16¢ 174204 214244 — 95a__Ba 29414 2454 6h—ga 104134 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.) pte Ree GUS 215d 6A—84 Qd_jod = ygd_154 = 164194 BOA_99a Baga 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 also when it is farthest south, and that is a mimimum between these epochs. This result is quite analogous to 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 gener; ally, whether the position of the sun or the moon be under Coneiieer cnn that the diurnal range of 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. mOOCnNAUtrwne oOo _— DIURNAL VARIATIONS FOR THE ToTAL MAGNETIC FORCE. Ixvil 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 —. 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 bh. m. h. m. h. m. h. m. h. m. Max. +535 +5 0 +5 5 +555 +545 +630 +535 +535 4455 +340 +625 +620 Min. —14 5 -14 0 —13 45 -13 0 —14 35 14 15 1440 -14 5 —18 35 -1615 -1245 —14 45 Max. 19 5 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 2245 -22 45 -23 0 —22 45 22 20 21 35 22 35 -—2250 —22 15 The principal maximum of the total magnetic force occurs between 3" 40™ and 6® 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. Nepte)||ia sacs. | aaa July. P Twelve Oct. Sept. March Aug. Nov. ‘6 to Months. Feb. Aug. 0:00 0 0-00 0-00 0-00 0 13 —0021 | —0102 | —0163 | —0148 | —0001 || —0011 | —0138 || —0074 113 | +0033 0000 | —0060 | —0021 | +0098 || +0065 | —0027 || +0019 213 +0085 | +0130 | +0051 | +0106 | +0184 || +0134 | +0096 || +0115 3 13 | +0133 | +0236 | +0167 | +0258 | +0285 || +0209 | +0220 | +0214 413 | +0144 | +0305 | +0236 | +0361 | +0313 || +0228 | +0301 || +0264 5 13 | +0152 | +0408 | +0358 | +0441 | +0313 || +0232 | +0402 || +0317 6 13 | +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 11 13 —0074 | —0074 | —0038 | —0096 | —0121 || —0097 | —0069 || —0084 ; a Sag a Ne | 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 :— Dec. Jan, Feb. March, April. May, June. July, Aug. Sept. Oct. Nov. Maximum, +65 10™ p.m. + 55 25m p.m, + 55 45m pm. + 55 35m pM. + 45 50™ p.m. Minimum, —2> 10™ am. — 2) 10™ am. 15 45™ am. — 2» 10™ a.m. — 2» 20™ a.m. Maximum, 7» 10™ am. 7h 5m am, 6" 35™ a.m. 6h 35™ a.m. 7h 35™ a.m. Minimum, 9h 55™ aM, 105 35™am. —105 45m,4.M, —105 35™ a.m. 10" 20™ am. MAG. AND MET. OBS. 1845 anp 1846. iP Ixvnli 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. | Six Months. ae ae March, May. July. pot ee Bye ane "ah April. June. Aug. RE | Sept.to | March Months. = ||| ‘ 3 | Feb. to Aug. | SS 22 ee ae ee h; m. || 0-00 0-00 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 || —0018 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 213 | +0053 | —0005 | —0024 | +0013 | +0075 | +0064 | —0005 || +0029 3.13 | +0071 | +0069 | +0064 | +0108 | +0126 | +0098 | +0080 | +0089 413 | +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 713 | +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 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 Omp.m™. + 5 40m pm, + 6h Om p.m. + 5h 35m p.m. + 45 15m pm. Minimum, 14 40™ a.m. 14 10™ a.m. 1» 30™ a.m. 15 40™ a.m. 15 25™ a.m, Maximum, 55 35™ a.m. 6 45™ a.m. 5) 15™ a.m. 5 35™ aM. 6» 20™ a.m, Minimum, —10"% 35am. —11" 46m™,.m. —10" 55™ am. —105 55™ am. —105 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 44 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. | | OS March. | May. Twelve April. | June. ; F ee cMutie, Aug. 0-00 . y | 0-00 — 0207 | | — 0140 — 0206 —0159 —0261 | — 0192 —0184 | — 0169 —0155 E —0150 -—0121 —0130 —0077 | | —0091 —0055 | | — 0065 — 0047 | — 0048 —0031 | —0027 0000 | | 4 — 0006 +0034 | +0079 +0100 +0069 +0135 +0167 | +0192 | +0265 +0254 +0188 +0105 — 0006 — 0095 — 0082 RK SOOCOONOUK WHE oO _—a 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. Noy. About 6 30™ P.M. 5 30™ p.m. 65 15™ p.m, 5 40m p.m, 54 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 0™ A.M. 2h 15™ am. 3h Om am. 2h 45m a.m. 25 10™ am. 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. hat f 10® 45™ a.m. 105 15™ a.m. 10® 10™ a.m. 115 15™ aM. 9» 45™ am. l 95 40™ p.m. 9» 10™ p.m. 10® 15™ p.m. 95 30™ p.m, 8h 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 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. : Mean. 1845. Mean. 1844. 1845, 0-000 4 0-000 0-000 0-000 0-000 0-000 — 055 +011 +015 —019 +006 -—O091 +030 +012 — 048 +028 — 068 5 +020 +005 — 040 —015 — 068 5 +001 —011 — 045 —015 — 052 — 036 —035 — 043 — 037 —010 | +002 — 004 —010 +001 +066 | +020 +006 +029 | +025 +106 | +027 +024 +065 +035 +084 55 —003 +017 +062 +023 +054 B — 028 —009 +031 000 +045 5 —039 — 022 +019 | —026 — 006 — 006 000 +001 146. Variation of the Total Magnetic Force with Reference to the Moon’s Hour-Angle.—Of the four indepen- 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 2k hours after 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 24 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. ASTIN Sy feo onscaisiisss 2 hours before ............ superior transit. ACMA RAMU Sees oes ses CAT) RMIT T ols acces superior transit. The minimum ............... 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 or THE MAGNETIC NEEDLE. 147. Motions of the North End of a Magnetic Needle supposed freely suspended in the direction of the Magnetic Force.—These motions have been represented in Plates VI—VIII. by projecting the variations of dip, given in 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 of dip depends, it is conceived that considerable confidence may be placed in the accuracy of these figures as re- 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 a consideration of the figures in the Plates will probably show the futility of many of the theories brought forth to explain the motion in declination. d 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 annual eres ComMBINED MoTIONS OF THE MAGnurtIC NEEDLE. xxi 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 major axis, passing at the vertex through June, makes an angle of about + 11° 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 end of the needle having crossed its previously ascending path, it forms a loop which, when untwisted 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 bya 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. 153. Diurnal Motions.—The monthly mean diurnal variations for the magnetic declination and magnetic dip in Tables 12 and 57, still present irregularities, especially from 10" p.m. till 44 a.m., the hourly positions for this time depending on only two years’ observations. For this reason, the values from these Tables having been projected, curves were passed freely among the points, and the interpolated ordinates thus formed, were taken for the projections in Plate VII.: the interpolated quantities differ very little from the actual values, and this is especially the case for the summer months. y 154, The diurnal motions for the 4 winter months November to February, are of the same class, and they differ considerably from those for the other months (see Plate VII.) ; in each of these months the motion consists of a figure of two closed loops: the north end of the needle moves eastwards with little change of dip from about 1" p.m. till 95 or 10" p.m., 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 December. After 6" a.m., the north end of the needle having moved a little westwards, again descends, crossing a second time the afternoon track near 55 p.m., still moving westwards, it ascends about 11" a.m. till it meets the position of 1" p.m., thus completing the western loop. The eastern loop 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 ; in 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 Ixxii 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" a.m. and 6" p.m., the remaining fourth forming a slightly inflected side to each of the figures: it 1s 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 conyolutions instead of the eastern 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 very 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 1218 12°04 1200 11°56 1164 10748 91-78 (22 6e8e 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 1188 11"92 9-04 Mean of undisturbed days, 4/-34. 9-86 10°68 11°28 7-76 158. Hourly Angular Motions.—Having obtained the approximate motion from hour to hour for each of the monthly figures of Plate VII., we find that, on the whole, they follow nearly the same law, that indicated in the following numbers, which are the means of the motions from the 12 separate months, and from other groups of months. TABLE 67.—Mean Angular Motions, from Hour to Hour, of the north end of a Needle supposed freely suspended in the direction of the Magnetic Force, as obtained (1.), from the Monthly Figures of Plate VII. (2.), from the 5 Independent Continuous Figures of Plate VIII. ; and (3.), from the 5 Independent Dotted Figures of Plate VIII. Means from Means from a 12 lout pea Ua ee punted 4 Sontinuous otte : ‘ontinuous otte ieee ch Figures. | Figures. | Le SEE Figures. | Figures. h. h. 12—13 0-19 0-10 0-20 13—14 +23 10 20 14—15 | +25 14 16 15—16 || — -22 18 25 16—17 +24 24 23 17—18 +25 23 24 18—19 37 28 38 19—20 58 53 55 20—21 61 58 63 21—22 -69 76 69 22—23 “91 85 88 23— 0 -70 67 73 * It may not be unimportant to remark here, that the processes usually adopted in order to determine the epochs of maxima and minima for the separate elements of declination and dip, are not strictly accurate; and that is the case whether the process be 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 are the co-ordinates. The error, however, will not affect any of the comparative conclusions for these 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. }xxill 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 transit of the magnetic meridian (between 10" and 11 4.m.), and a minimum when it makes its inferior transit of the same meridian (between 10"and 11" p.m.). This result is the more curious that the epoch of the minimum velocity of the diurnal motion is an epoch of maximum disturbance, and, in as far as the declination is con- cerned, the epoch of maximum velocity of the diurnal motion is also an epoch of minimum disturbance. 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 from 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 laws of variation of temperature. In the mean for the whole year, the temperature changes most rapidly between 8" and 91 a.m.; but it changes with nearly equal rapidity between 5" and 6" p.m. There is no corresponding fact 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 ‘May, June, and July, from 658" a.m. being +38°80, and from 6%—8" p.m. being —3°-54; for the same months the mean angular motion of the needle from 648" a.m. =1’-00, from 9511" a.m. =2/-12, and from 6b_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, 62-7" 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 the 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 vary between rude ellipses and circles. In the winter months, the principal portion, or loop of the figures, is elliptical 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 the 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 the epoch of minimum temperature and the eastern turning point. If, however, we examine the figures indi- cating the diurnal motions of a needle in its ¢rue 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 a 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 four 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 following Table, which are obtained from Plate VIII. TasLeE 68.—Angular Distances between the Disturbed and Undisturbed Positions for each Hour in the motion of a freely-suspended Dipping-Needle, as obtained from Plate VIII. Mak. i ept. Sept. March ~ nee 5 a March. miuye July. ae be a From Time. || Feb. ees Aue. Nov. Feb. Aug. Mean | of first 5 Curve. Columns. h. a ’ e , 2 a y ‘ 12 || 0-36 0-20 0-34 0-28 0-36 0-35 0.25 0-32 13 26 32 26 +24 28 28 31 26 14 28 46 20 18 14 18 28 24 15 09 16 16 -06 12 08 12 08 16 06 04 18 -08 12 09 09 04 17 15 08 08 +24 14 13 14 08 18 | 21 20 08 +32 34 25 18 22 19 20 24 14 +32 40 29 22 26 20 18 30 30 -46 42 29 34 28 21 22 36 28 +30 40 30 32 32 22 24 28 26 +20 26 28 22 28 23 24 -30 | 16 +36 +26 24 18 24 0 28 28 | 12 14 +30 26 18 22 1 35 +24 28 16 +24 28 24 28 2 36 +36 40 16 38 34 30 34 3 29 +32 26 +24 +36 30 28 28 d 28 44 46 44 “16 40 44 32 5 | 12 -30 34 +50 12 04 35 18 6} 15 +36 30 -42 +32 19 28 16 7 18 42 =| 30 26 38 27 22 24 8 43 36 16 24 58 50 24 38 9. | 38 38 24 44 44 38 34 38 10 39 38 30 +36 “52 45 34 40 11 42 +26 38 +22 50 45 32 38 166. 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 4" p.m., the values for these hours being nearly equal, or near the hours when the sun is on the magnetic prime vertical. The maximum effect of disturbance occurs in both about 10" p.m., when the sun 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. 2d, In the figure 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 July—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 about 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. 4th, In all months of the year the effect of disturbance is a minimum about 4" a.m. In the winter months a minimum occurs at 44 p.m., the maximum occurs at the same hour in the summer months. 5th, Inthe mean figure for the year, minima occur at 4" a.m. and about 53" p.m., the maximum occurs about 105 p.m,, and a maximum occurs between 8" a.m. and 45 p.m, If, making allowance for the effect of dis- turbance on the position of the centre of gravity with reference to dip (No. 121), we suppose the centre of gravity of the dotted figure for the year (Plate VIII.) raised 0’-16 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" p.m. and 10" a.m., and the minimum effect about 4" a.m. and 5" p.m. This result was obtained for the magnetic de- clination in 1844, See the Volume for that year, p. 345, — eS : Tue AvRORA BOREALIS. lxxv 167. Motions with reference to the Moon’s Howr-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 resulting figures, especially that for the winter lunations of 1845, bear some resemblance to the diurnal motion for the month of December. THE AURORA BOREALIS. 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?” It should be noted that, with the exception of the years 1844 and 1845, aurore were seldom looked for after midnight. TABLE 69.—List of Aurorz Boreales seen at Makerstoun in the years 1843-9. Dine, Moon’s| Sky Species SPREE BE eee Ottingen of Magnetic General Remarks. of Refer- eas Time. Age. |Clondad ios Clouds. Dictibancs, ence. “a eae a (1843.) Jan. 28- 8 28 0-0 Slight Traces. (Seen at Christiania.) 93 Feb. 24 10—13| 25 9-7 | Seud Moderate Traces. (Seen at Christiania and in United States.)} 201 Mar. 6 14 5 2-0 | Cum.-scud | Moderate Seen through clouds. 203 7 8 6 0-0 Moderate Arch 10° altitude. 54 12 9—13| 11 2-0 | Scud Considerable| Distinct. 54 29 9—12| 28 0-0 Moderate Segment of circle 15° alt. 103", equatorial beam. | 111, 61 Apr. 5 9—14 6 0-0 Considerable | Bright arches and streamers. 61 6 14—16 7 0-0 Considerable} 145; arch 10° broad, 15° altitude. Corruscations. | 205 Sept.18 10—12} 24 2-5 | Cirro-str. Moderate Bright. 145 35™; 12° altitude. 213 19 10 25 9-8 | Cirrous Moderate 115; band 10° altitude ; seen through clouds. 69 20 14—15| 26 1-0 | Scud Traces. (Seen at Christiania.) - 69 Oct. 15 10 21 Auroral arch 15° altitude. Streamers. 173 16 10 22 9-8 | Cirrous Slight Traces through clouds. 175 26 8—10 3 0-5 | Loose cum. | Moderate 98 50™; arch 8° altitude. 177 Noy. 2 10 10 0-2 Slight Traces. 70 13 8—10| 21 9-8 | Various Slight Distinct. [places. | 183 14 10 22 8-0 | Cir.-strati | Slight Traces. 124; magnets slightly disturbed at other | 183 Dec. 11 10 19 5-0 | Sc.; cir.-str. | Moderate Distinct. 71 12 8 20 | 10-0 | Scud Moderate Traces; through clouds, (Appearances at Parma.) | 191 27 6 6 0-8 | Scud Slight Traces. 72 1844. (1844.) Jan. 5 10 15 9:0 | Seud Moderate Traces. 174 10 10—11| 20 2-0 | Cirri iModerate Traces. 175 Feb. 7 9 19 0-5 | Loose scud | Moderate Faint. 186 11 13—14| 23 5-5 | Cirri Slight Traces. (Suspected at New Haven, Connecticut.) | 187 22 8 4 5-0 | Cirri Slight Traces. 158 Mar. 2 9 13 1-0 | Scud; cir. | Moderate Trace. (Bright moonlight.) 158 7 8—10; 18 1-0 | Cir.-str. Moderate Rather bright. Arch and streamers. 158 9 13 20 2:0 | Sce.; cirri Moderate Rather bright. 158 12 11 23 0-1 | Cirri Slight Faint. 158 29 11—16| 12 0-1 | Cirri Moderate Bright. Arches and streamers. 158 Apr. 5.12—14] 19 0-2 | Cir.-str. Moderate Streamers, arch and band. 158 10 13 23 0-9 | Cir.-str. Slight Traces. 209 17 11—12 0 5-0 | Cirri Considerable | Faint streamers and homogeneous light. 158 May 8 11—12] 21 1-2 | Cirri Moderate Faint. 198 MAG. AND MET. oS, 1845 anp 1846. t GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS. TABLE 69.—continued. 5 ¢ Character Page Plecea re 5 foe a eee. of Magnetic General Remarks. of Refer- Mean Time. : ‘ Disturbance. onan d. h—h. a May 21 12 4 2-0 | Cirri Slight Traces, 211 5 0.2 | Haze Moderate Trace. (Seen at New Haven.) 158 Aug. 2 14 18 0-5 | Cirri Moderate Faint. [tucket, Mas.) | 252 14 25 3-0 | Seud Moderate Traces. (Seen at Whitehaven, and at Nan- 158 Oct. 2 8—10} 20 1.0 | Cirri Moderate Belt of light 5° altitude. 158 5 10—11| 23 0-0 Slight Faint. 158 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 | Seud. Moderate Traces through clouds. 159 13 10 3 8-0 | Scud 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 24 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 Jan. 0 15—16| 22 5:0 | Cir.-cum. Slight Faint. 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 21 4:8 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 26 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 29 7—9| 21 1:5 | Cir.-str. Moderate Faint. 120 30 8s—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 24 8—13| 18 0-0 Moderate Arch 8° altitude, and streamers. 122 26 15 20 3-0 | Cir.-cum. Moderate Trace ? 157 28 12—14| 22 4-5 | Cirri Moderate Faint; milky aurora. 122 Mar. 9 16 1 | 10-0 | Seud Moderate Seen through clouds. 161 14 ll 6 4:0 | Seud Moderate Traces ? 163 1s 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. 123 25 9 ils 9-8 | Cir.-str. Moderate Trace? 167 26 11—14| 18 4:0 | Scud 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 a 7-0 | Cir.-str. Considerable | Brilliant. Arches and streamers. 123 15 11 9 8-0 | Cir.-cum. Slight Trace ? 175 19 11 13 4:5 | Seud Moderate Trace. 123 30 11—14| 24 7-0 | Seud 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 Tuer AvRoRA BOREALIS. Ixxvii TABLE 69.—continued. Date, ncaied Character Page Gottingen y " yi a of Magnetic General Remarks. of Refer- Mean Time. 4 Syeenas. Disturbance. ence, a (1845.) 1 . Slight Trace. (Seen at Christiania.) 238 20 5 Moderate Faint. Patches and streamers. 124 21 . Moderate Faint. 245 31 : Slight Traces. (Seen at Christiania.) 249 Slight Faint. Diffuse light, with streamers. 124 . Moderate Arch 12° altitude. 124 Moderate Bright. Arches, streamers, and brushes. 124 Very large | Brilliant. Arches, streamers, and brushes. 125, 261 Moderate Trace. 265 (1846.) Sc. ; cir.str. | Moderate Arch and short streamers. 342 Seud Moderate Diffuse light and faint streamers. 342 Scud ‘. Considerable | Faint light, arch, and streamers. 342 Cir.-str. Moderate Faint. 342 Scud Considerable | Faint. 342 Moderate Diffuse light, with faint streamers. 342 Seud Considerable | Distinct. Patches and streamers. 342 Cirri Moderate Faint. Arch 7° altitude. 342 Cir.-str. Considerable | Faint. Beam. [bank 5° alt. | 342 Scud Considerable | Distinct. Incessant pulsations of patches. 154; | 343 Cir.-str. Very large | Evidently bright, but obscured by clouds. 395 Cir,-str. Considerable | Aurora. Faint streamers. -| 343 Se.; cir.-str. | Moderate Bright streamers. 343, Se. ; cir.-str. | Slight Faint. 399 Cir.-str. Moderate Traces; through clouds. 343 Sc. ; cir.-str. | Large Bright. Arches and streamers. 343 Moderate Arch. 343 N.B.—See additional Notes after Table 69. Moderate Faint. [like clouds from NW. Cirrous Slight Faint light. Arch and streamers; cirrous-fan- Cirrous Very large |(Bright. Corona borealis. 8" 50™; arch about 10° alt. from NNW. 9" 20™; arch about 20° alt. from SSE. Cir.-cum. Considerable | Pulsations seen to 20° altitude above clouds. Slight Faint. Varying patches. Beautiful. Streamers, arches, brushes, waves, &c. Cir.-str. Large Pulsating patches, diffuse light, arches, stream- Se.; cir.-str. Traces. [ers, &c. Moderate Faint, with streamers. Send Slight Low band. Streamers close to horizon. Cir.-str. Excessive 115 7™ ; Splendid corona, &c. Scud Moderate Faint. 85; arch 8° alt. 11"; streamers on horizon. Scud Slight Traces. Scud Large Fine red-coloured patches and streamers. 10#12™; corona borealis centre71° alt.,azimuth §.25°E. Se.; cir.-str. | Moderate Faint. Cir.-str. Slight Faint. Stratus Moderate Distinct. Scud Excessive Splendid crimson aurora, with corona borealis, &c. a Brilliant. Coloured ; streamers and corona bor. Id. Much concealed by clouds. Id. 84 50™; arch passing through zenith. { 85 55™; lower edge of arch 42° above SSE. lxxvill GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS. TABLE 69.—continued. Date, Species Character Page Gottingen iN y f£ Clouds. of Magnetic General Remarks. of Refer- Mean Time. 8° ore Disturbance. ence. 1848. a) Ghote a. Mar.17 9—10| 12 Traces; through clouds. 19 8—13} 14 Bright arch of brushes. 21 12—13| 16 Bright and rapidly pulsating. 24 10 19 Faint. Apr. 17 10 14 Coloured, but sky overcast with growing clouds. 29 9—13| 26 Faint. 11" 10™; streamers. May 10 11 7 Faint. Streamers. 18 13 15 Bright. Streamers to 80° alt.; coloured red. Sept. 5 12 8 Faint. Lightning. {and thunder. Oct. 18 7—11] 21 Coloured. 103"; corona borealis. 11"; lightning 19 22 Faint. Streamers. 20 23. Traces, 21 24 Traces. ; 22 12 25 Aurora, with streamers. [the 23d ?) 24 10 27 Traces. Overcast. (This may haye been on 26 11 29 Faint. Noy.17 7—13] 21 Magnificent, whole sky crimsoned. 18 9—11] 22 104; arch about 10° altitude. Bright. 8% 10™; large wing-like patches about dys { dig anti-dip: 22 8—l11| 26 Bright, but sky overcast with clouds. 30 10 5 Traces, Brilliant. 8% 40™; corona borealis. 115 40™; hai) | Coes || 0 { beautiful wings about its centre. 21 10 26 Faint. Low on north horizon. 1849. Jan. 5 12—13] 11 Aurora, with streamers. [arch 15° alt. 14 6—11] 20 | 6"10™; streamers. 9° 40™; arch 4° alt. 10" 40™; 15 8—Il1] 21 Diffuse light. 1G) 7 22 Traces ; through clouds. 25 8—il 1 Faint diffuse light. 26 8—ll 2 Very faint. 31 10 vf Trace. Feb. 11 10 18 Very faint. 13 11 20 Very faint. [to N. by E. 18 8—Il1| 25 9" 40™; rather bright, with pink or red patches 19 9—12] 26 8" 40™; bank to N. 9°54"-58™; magnificent bow. 20 9—10| 27 10° 0; bank, or red streamers. Diffuse light. 21 9 28 Very faint. 22 7—12) 29 ue 30" ; finely coloured to N. 11° 48™; corona bor. 24 10 1 Very faint, with low arch. 26 10 3 Faint. 28 10 5 Trace. {and streamer. Mar.18 10—11] 23 : 10" 25™; fine arch 73° alt. 10°32"; low light 19 11—12| 24 Faint arch to N. Streamers, and pulsating wings about the centre pee tea — 1} 128 { of the a borate Fa 17 11 24 Faint. After this time little watch was kept for Aurore. 1 Distinct traces on N. horizon. 2 Faint. 19 11—12 3 Faint. 8 Faint, with short streamers. 2 Faint streamers. Tue AvrRoRA BOREALIS. lxxix 170. The detailed notes on the aurore seen till January 1847, will be found in the volumes referred to in the last column of the previous Table: in order to render the series more complete, the following additional notes for the year 1847-9 are given. Gttingen mean time has been employed, as in the former volumes, in order that the notes might be comparable with the magnetic observations. March 19 8 Sept. 29 Oct. 24 11 Nov. 19 1848. 21 12 24 10 Gott. M. T. 1847. a. oh. Feb. 22 8 Oe. 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 Aurige ; 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 SE., &e. 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. 39™. Sky covered with patches of hazy 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 102 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 703°. Bright pencils and streamers seen till near 14"; lunar halo at 13" 6™. Fine coloured aurora; made a few notes about 9» p.m. as follows :— 583™, White patches in Cygnus; a very persistent red patch on the Pointers, it has moved perhaps 2° eastwards since 523™; about 48™ very irregular white streamers on N. horizon. 11™, Bright-red streamers east of Pointers. 23™. White patch to WSW. 34”. 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 8, 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 7" 20™; about 84 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. Aurore 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. MAG, AND MET. oBs, 1845 anp 1846. uw ? lxxx GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS. Gott. M. T. 1849. a. h. 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 obsery- ed to rotate about the point c, the centre of the corona, the beam a, appearing to occupy successive positions, till it F 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 nota 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 10" 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 H. 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 8. 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 #% Urs Majoris. Diurnal Variation of Visible Frequency of the Aurora Borealis —When we note from the preceding Table the hours at which aurore 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. | | | Nov. Feb. | Aug. || Mean Jan. Feb. | March.| April. | May. | Aug. | Sept. | Oct. Nov. | Dec Dec. | March.| Sept. |) Year. Time. } | Jan, | April. | Oct. “ilar eae | F | 5 pM, l 0 0 0 0 0 OMe t Silees 5 ) ) 5 Gxt: 4 2 Ol a|e 0 0 0 Le ee Tae 68 14 2 3 | 19 Peal Or libs 4 ills ghlee| nt 0 2 meas 7 6 23 12 10 || 45 8 9 12 9 BG) 0 5 omNG 9 4 22 24 11 | 57 9 | 10 17 T2eline 1Goalene l On| eee 16590 7 33 35 23 91 10 8 10 Sie || eda es 2 7) Nees 9 3 20 35 17 75 1b 4 9 10 tae 3 5 3 4 3 11 26 11 50 Pa 4 6 8 He le 1 2 1 Siac 10 21 4 37 1 a.m. 2 3 5 5 1 3 2 2 ait 6 13 7 27. OW gael f 2 3 ea) 0 2 alee 0 1 4 7 4 15 3 1 0 Pa EN CT 0 2 3 0 1 ee 4 5 11 4 0 0 0 057} 20s le 10 0 2 0 1 1 0 2 3 5 1 HO 0 0 0) S570 0 Calls Obie! 1 ) 1 2 FREQUENCY OF THE AURORA BOREALIS. Ixxxi 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 aurorz were seen at 95 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 probable 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 aurorz were seen were for the hours before 10% p.m., whereas in the spring quarter there were only three-fifths seen before 102 p.m. (See No. 172). TABLE 71.—Numbers of Aurore Boreales seen at Makerstoun in each Month of the Years 1843-49. Sept. Oct. Nov. 4 5 oO 4 = =] Years. || Jan. Feb. | March. | April. | May. Aug. i=} 8 i r=] B Owe pe wb oooocoeoco ooocoeco wre be WwW O ow bos or BB oo 4 NO bo bo oo 29 _ lor) for) i=) i) I —_ lor) 172. Annual Variation of Frequency of the Aurora Borcalis—The‘first line following contains the numbers of aurore observed in each month during the six complete years 1843-8, and the second line gives the numbers of hours at which the aurorz were seen. ; Jan, Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec. 15 16 26 14 6 0 0 7 13 27 23 11 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- cluded, 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 frequency at all seasons of the year, the existence of the summer minimum could be satisfactorily determined, by comparing the numbers of times which aurore were seen at the five hours, 104 p.m—2" a.m., during * 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, Ixxxil 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. Ang. Sept. Oct. Noy. 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 autums 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 aurora 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 aurorsz, 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 aurorz observed at each day of the moon’s age into six groups of 5 days (the first group, 4} days), we find the average number of aurore for one day of the moon’s age in each group as follows, from the 6} years’ observations :— Moon’s Age. 2ga_o4 3a—74 Sa—]2¢ 134174 1gi—220 234974 Number. 5°8 5:2 36 5:0 10-2 6°6 Did aurore ocewr 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 aurore, 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 9" 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 inereases in brightness, and the maximum effect in extinguishing faint aurorz is evidently attamed at opposition, when the moon begins to rise late enough to allow the earlier aurore to be visible; towards the end of the 1733, p. 199); by Kemtz (Complete Course of Meteorology, translation by Walker, p. 458); and by Hansteen (Mem. de l’Acad. Roy. de Belgique, t. xx., p. 117). Jan. Feb. March. April. May. June. July. Ang. Sept. Oct. Noy. Dec. Sum. Mairan, . 21 27 22 12 1 5 7 9 34 50 26 15 229 Kemtz, 229 307 440 312 184 65 87 217 405 497 285 225 3253 Hansteen, 29 31 47 34 2 0 0 17 35 33 34 23 285 J. A, Broun, 22 26 28 16 6 0 0 é 16 29 23 11 184 Sum of last three, 280 364 515 362 192 65 87 241 456 559 342 259 3722 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, * Tt 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. _ = Tue Auroras BoREALIS. Ixxxlil 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 aurore, 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 polar 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 mapnetic 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. 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. oss. 1845 anv 1846. z 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, | Monthly Month. 0 2. . | 1844. 1845. b ib 929) |lVariationes o” HIDU-G January . . 37-35) 34-71 February : . 32-48 32-96 March . : 38-36) 35:39) : April “ 79| 46-77 | 44-33 | May . 54| 48-49| 46.37) June : *35| 54:14) 55-66 July . : 99:55 | 54.14 August : . -12| 54-08) 54-60 September 2 . : 52-30) 50-06 October : . : 45:74 | 47.86 November je . : 42-85 | 41-94 December : 5 32-04 | 37-08 45-01 | 44-59 176. 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 Spring, March, April, May, .............c00+6 = 44°24 Summer, June, July, Aug., ........esceeeeeee = 56°25 Ain, «Sept, Oct Navenen oc. es.scs-seestesee = 46°66 177. Annual Variation of Temperature.—By the monthly means from the 8 years’ observations The maximum temperature occurred any oximately July 22 The minimum temperature «++ +++++seeeseeeee esses January 27 The mean temperature tet eeeereeteereeeeeeeees April 29 and October 14 7 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, = 61°-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 yearly range of eeeeoh mean geet occurred in 1846, = 28°-67 The least aa dienes calaceiacisaclvennteiae tecscessecccssecsrecsesseeveee 1849, = 19°59 The difference between the temperatures of the hottest and coldest months in the mean of 8 years = 20°95 2Zmonths — ......---se0eee-e- 20°42 SEMOOUNGn: ge iecsamensesm aes = 19°28 ANNUAL VARIATIONS FOR THE TEMPERATURE OF THE AIR. lxxxyv 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, being as follows :*— Jan, Feb. March. April. May. June. July. Aug, Sept. Oct, Noy. Dec. 2°-0 229 11 1°-9 19 1°-7 1°4 1°-5 1°5 eel 1:2 3°:2 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. March. 14-1 13-1 14-0 14:7 14:0 | 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. 5°60 7°05 9°30 14°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. Ixxxvi 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, Maximum P.M. .M. .M. p.M. Mean| A.M. Mean| Minimum to to to Maximum,|P.M. Mean.) Sunrise. Noy. Dee. Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Year 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. 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 15 and 2" p.m., are equal or nearly equal till the pair 9" 10™ a.m. and 6 10™ p.m., which are also nearly equal, so that the mean diurnal eurve for the year from 94 10™ a.m. till 65 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 itis 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. Deter ete nis nig « wks 0 vin qasie/e cag RBs aes o June to September... .-........-cecescereeeeee--oee == 0°381 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’s Moon Age. farthest North. a a. in. in, in. in. a a. 14—16 5 : : : 27— 1 17—20 : . 4 dj pee a 21—24 || +. : . . 6— 8 25—28 . F ; 9—12 99 i || -. ‘ 5 : 13—15 J Bila : 4 ; 16—19 6— 9 ‘ -002 ‘ 20—22 10—13 . : 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 f * 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, 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 |xxxvili GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS. effect, especially on the aqueous contents of our atmosphere ; in order if possible to determine this, the diseus- 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 position till it was nearly farthest south. 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 a consequence of the first. TasLE 79.—Diurnal Variation of the Pressure of Aqueous Vapour for each Astronomical Season and for the Year, deduced from the Observations of the Years 1843-6. KOCOOCONOQuURWNR OF b+++++4+44 — 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, Noy., Dec., Jan., Minimum, 11) p.m.—7" a.m. Maximum, 1 30™ p.m. Spring, Feb., March, April, 45 10™ a.m. 0» 40™ p.m, Summer, May, June, July, 35 50™ am. 1h 30™ p.m. Autumn, Aug., Sept., Oct., 5» 10™ a.m. Om 40™ p.m, Wearsi-o. Tinted] The ote kee AU. OVS a A 1, 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 8" 0™ .m., and at 8" 25m p.m, the interval being 125 25™, The range of the diurnal variation for the Winter quarter = 0-018 inch. SPLS bs. ss = 0:026 Summer ...... = 0:040 Autumn ...... = 0:054 Year = 0-034 RELATIVE HumipItTy. Ixxxix 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. March. 0-855 : . 0-860 | 0-904 +828 | - : F “i 4 Fs -848 | -882 811] - 831 | - : : : 841 | -875 -836 ; 834 | -861 | - 890 | -897 -832 186. 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, Noy., Dec., Jan., = 0':896 Summer, May, June, July, = 0°806 Spring, Feb., March, April} = 0°836 Autumn, Aug., Sept., Oct., = 0-851 Year, = 0847, 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 2s 6— 8 9—12 13—15 16—19 20—22 23—26 187. Variations of the Mean Relative Humidity, with Reference to the Moons 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). xe 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. || : Feb. May. Aug. Mak. Nov. Feb. May. Aug. Mean Dec. March. | June. Sept. Year. Mean Dec. March. | June. Sept. Year. Time. Jan. April. July. Oct. Time. Jan. April. | July. Oct. © : (am | a h. m. inna: 12 10 | +0-013 |+0-061 |+0-103 | + 0-072 | +0-062} O 10 |—0-035 —0-090 |—0-109 | —0-106 |—0-085 13 10 ||+ -014\+ -065|+ -105|+ -075/+ -065] 1 10 |— -043|— -107/— -118|— -122))— .097 14 10 |4+ -012)+ -069|+ -105|/+ -072,)|+ -064] 2 10 |— -044)— -110)— -112|}—°-130)|;— -099 15 10 |4+ -014\+ -065)+ -109)+ 078 ||+ -066) 3 10 |— -027|— -106)— -112}— -120)/— -091 16 10 |+ -017|-+ -064/+ -101/+ -075|/+ -064] 4 10 /— -009|— -090)— -102/— -096||— .074 17 10 ||+ -018|+ -066)+ -087)+ -072||+ -061} 5 10 |/+ -001)— -052)— -079|— -058|/— -047 18 10 ||-+ -022)4+ -058|+ -062|+ -064))+ -O51] 6 10 + -003|— -027 — -051\)— .016)|\— .023 19 10 |+ -019|+ -050|+ -023/4+ -052)+ -036] 7 10 |+ -003|+ -009|— -012\+ -018)|+ -004 20 10 |+ -021|4+ -027/— -017/+ -019]/+ -012] 8 10 |+ -007|+ .028/+ -031/+4 -038|/+ -026 21 10 |+ -007|— -010/— -054|— -019||— -019} 9 10 + -009|+ -037\+ -059 + -051 + -039 22 10 |— -005|— -054|— -077|— -057)}— -048] 10 10 |/+ -007|+ -053)+ -078\+ -060)+ .049 23 10 |— -027|/— -073|— -103|— -085])/— -072] 11 10 |\+ -004|/+ -060)+ -088\+ -057)+ .052 188, Diurnal Variation of the Relative Humidity —The following are the approximate epochs of maxima and minima, as obtained from Table 82. Winter, Noy., Dee., Jan., Maximum 7" 4.m. Minimum 1" 50™ p.m, Spring, March, April, May, Siete» , caer 1» 50™ p.m. Summer, June, July, Aug., BEMASAE. inc rosso cis 1» 20m p.m. Autumn, Sept., Oct., Nov., ....--- REAM EU AGM lh cncimerent oe Osea Year, ." Siu hetytereses: TAC fo 32 i ogo eee 1h 40™ p.m. 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 102 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 = 29-610 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. ® Mean Height of Tevet 213 feet. | of Sea. in. in. in. in. in. in. | in. in. in. in. Jan. || 29-584 | 29-357 | 29-693 | 29-512 | 29-392 | 29-604 | 29-722 | 29-508 || 29-547 | 29-786 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 “099 ‘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 Oct. | -o72 +682 -401 +397 +602 +312 +646 551 -606 +525 ‘758 Nov. || -453 -448 | 471 363 | +323 +655 +643 “601 -530 +529 -765 % 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. xi 190. Annual Variution 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. Noy. Dec. in. in. in. in. in. in. in. in. in. in. in. in. 0-043 0:045 0:087 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 moré certain ; these means are as follow :— Prefix Jan.—Feb.— March— A pril—May—J une—July— Aug.—Sept.—Oct.—Nov.—Dee.—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,— Jan..Feb. Mar, April, May, June, July, Aug. Sept. Oct. Nov. Dec. | Oct.—Mar. Apr.—Sept. in. in. in, in. in. in. 29561 29-660 29-669 29°569 | 29-565 29°665 ~ * 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 also a 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. Noy. Dec. Year. in. in. in. in. in. in, in, in. in, in. in, in. in, 0167 0133 0-097 0-031 0:014 © 0-087 0-114 0097 =—-0:035 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 isa 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 its temperature, the mean temperature of Greenwich being only 2° kjgher than that of Makerstoun in winter, while it is 5° higher in summer. 8d, 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 0070 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. oBs. 1845 anp 1846. z xc 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 i April to September, while the range of the quarterly groups for the meteorological seasons is only 0-057 in. . > rf 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 it-is 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. in. ha 0-261 | -310 | -208 +325 276 192. 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 ¢wo 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. a Year, Jan. | Feb. | March.| April. | May. | June. | July. | Aug. | Sept. Oct. Nov. Dec. | Mean. | | | in. | in. in. in. 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 | 0-285 | 0-355 | 0-207 | 0.221 1844 224 | .282| .298 | -185 | -124] -148 | -156 | -181 | -134 | -234 | -196 | -145 | -192 1845 320 | -243 | .236 | -222 | -131 | -184| -181 | -164 | -223 | -208 | -269 | -452 | +236 1846 || -283 | -202 | -269 | -160 | -183 | -142 +172 | -149 | -165 | -294 | -223 | -217 | +205 Mean | .292 | -227 | .252 | .200| -147 | -161 | -176 | -165 | -172 |] -255 | -261 | -255 || -214 193. Annual Variation of the Diurnal Range of the Atmospheric Presswre,—From the means of the diurnal ranges for each month in the four years 1848-6, the diurnal range is least in May, and it is greatest in January ; the following groups give the greatest and least quarterly means,—— Nov. Dec. Jan. Feb. Mar. April, May, June, July, Aug. Sept. Oct. = = in. i in, in. in. 0-269 0226 0-161 0197 4 MonTHLY VARIATIONS FOR THE ATMOSPHERIC PRESSURE. x¢eilll 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 > M Moon’s ny || 1843. | 1844. ‘Age. || 1843. | 1844. . || Mean. | farthest North. d. in. in. in. in. d. d. in. in. in. in. F 14—16 ||+-012)—-032| —-063 |—-027 |—-027] 27— 1 |/+-031]+-019 | +-026 | + -022 || + -025 17—20 ||—-014| -000|+-049|} -000|/+-009] 2— 5 ||+-010/+-022)—-006 |+-004) +-008 21—24 ||—-034|+-017|+-069 |+-030 ||+-021] 6— 8 ||—-001]+-009 |—-005 |—-053 | —-012 25—28 |/+-001 |—-001 | —-009 -003] 9—12 | +-010]—-018 |—-021|+-010| —-005 +-030 | + -024|+-005 /+-005 }+-016] 13—15 || —-032]—-026|+-019|+-009)| —-008 2— 5 ||+-010}+-011|+-002 |+-019 | 4-011] 16—19 | —-028 | —-007 |—-003 |— -002| —-010 + + ! S —) oo | -001 |+-026 |—-011 +-008 |+-008] 20—22 ||+-015 |—-015 | —-033 | —-005 || —-010 -007 | —-044 — 045 | — -033 -003 |+ -016 |+-026 |4+-019 | +-015 -032] 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 vers. Xclv 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. | Nov. | Feb. | Dee. | March. Jan. April. 3 8 @ | in. | in. -0026 | + -0040 | 0041 —-0013 -0055 | —-0057 -0108 |—-0112 -0159 |—-0135 | 0179 | —-0122 —-0158 —-0092 -0096 —-0043 | 0012 +-0008 .0060 +-0036 0122 +-0059 | 0098 +-0075 FOOnMDNaAuRhWNre Oo: —— 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 125, was considered equal to the mean of the changes from 10" to 11" and from 12 to 14, (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 ears Interval |! Mean Epoch betwixt Minimum G Maximum % Minimum Min Maximum the Two A.M. F A.M. . M. se P.M. Max. Period. Maxima. | Minima. Dec. Jan. Mar. Apr. | June July | Sept. Oct. | Year 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. lst, 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 in 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 6% p.m. till 8) 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. : ane ; 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 é Se A.M. Maximum, | P.M, Minimum. | p.m. Maximum. | A.M. Minimum, _ || Wbole Oscillations, Period. Total. |PerHour.| Total. |Per Hour.| Total. |Per Hour. . |Per Hour, \. in, in. in, in. in. in. in. Noy. Dec. Jan. . 0-0160 | 0-0044 | 0-0126 | 0-0018 | 0-0275 | 0.0033 0-0036 Feb, Mar. Apr. || - -0140 } -0033 | -0180 | -0035 | -0250 | -0033 : -0033 May June July || - : -0230 | -0026 | -0191 | -0031 | -0100 | -0024 || - -0027 Aug. Sept. Oct. || - oi -0208 | -0030 | -0188 | -0031 | -0146 | -0023 || - -0030 Year : -002 -0150 | -0027 | -0145 | -0026 | -0173 | -0026 || . -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 :—1st, That the law of diurnal variation of atmospheric pressure at Makerstoun, is almost precisely the same in winter as itis 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 betwiat 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 variation 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 XeVl 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. March. | April. | May. 199. Annual Variation of the Approvimate 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 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 Moon farthest North. ay atau 27— 1) = i | 6— 8 | 9—12 | 13—15 | 16—19 | 20—22 | 23—26 200. 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. Approwimate 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. DIURNAL VARIATIONS OF THE PRESSURE OF THE WIND. xevil 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, Mean Dec., March, | June, Mean Dec., March, June, Sept., Year. Time. Jan. April. July. Time Jan April July. Oct, eae 0: 1b. 1b. Ib. ie) an: 1b. 1b 1b. 1b lb. 12 10 || —0-07 | —0-21 | —0-20 0 10 || +0-13 | +0-25 | +0-23 | +0-17 || +0-19 13 10 | —0-10 | —0-15 | —0-19 1 10 | +0-11 | +0-29 | +0-27 | +0-22 || +0-22 14 10 || —0-13 | —0-14 | —0-21 2 10 || +0-06 | +0-32 | +0-28 | +0-19 || +0.21 15 10 || —0-03 | —0.08 | —0-22 3 10 || +0-02 | +0-26 | +0-25 | +0-14 || +0-17 16 10 || —0-05 | —0-10 | —0-18 4 10 || —0-03 | +0-14 | +0-18 | +0-11 |} +0-10 17 10 || —0-02 | —0-12 | —0-15 5 10 || +0-02 | +0-03 | +0-14 | +0-02 || +0-05 18 10 || —0-05 | —0-08 | —0-11 6 10 || —0-03 | —0-05 | +0-03 | —0-05 || —0-02 19 10 || —0-05 | —0-10 | —0-03 7 10 || —0-01 | —0-15 | —0-06 | —0-07 || —0-07 20 10 | —0-03 | +0-03 | +0-13 8 10 || +0-02 | —0-19 | —0-13 | —0-10 || —0-10 21 10 | +0-04 | +0-11 | +0-17 9 10 || —0-02 | —0-14 | —0-19 | —0-10 || —0-11 22 10 | +0-07 | +0-21 | +019 10 10 || +0-02 | —0-16 | —0-21 | —0-13 || —0-12 23 10 | +0-11 | +0-24 | +0-23 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, Noy., Dec., Jan., 2» 10™ a.m. 8 36™ a.m. 02 10™ p.m. 3" p.m.—11» p.m. Spring, Feb., March, April, 115 40™ p.m. 75 56™ a.m. 14 55™ p.m. 5b 32m p.m. Summer, May, June, July, 9) p.m.—4" a.m. 7> 21™ aM. 1h 45™ p.m, 6 30™ pM. Autumn, Aug., Sept., Oct., 8? P.m.—7> a.m. 85 327 a.m. 1» 0™ p.m. 5h 97m px, Year, 12 aM. 7h 57™ am. 1 30™ p.m. 5) 53m pm. 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 [X., 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 14 p.m., and in the night portion of the _ curve, from 15 a.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. a The range of the mean diurnal variation is least in winter, and it is greatest in spring and summer—the _ ranges are— Winter = 0-26 Ib. Spring 0:53 Ib. Summer 0:50 Ib. Autumn 0°36 Ib. Year 0-37 Ib. xevill 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 1b, 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. March. | April. . | July. | Aug. | Sept. | Oct. Ib. 1b. - . Ib. Ib. Ib. Ib. 0-65 | 0-89 : 0-56 | 0-45 | 0-38 | 0-58 0-85 | 0-69 c E 0-33 | 0-56 | 0-46 | 0-80 0:95 | 0-91 D . 0-53 | 0-50} 0-43 | 0-72 0-99 | 0-48 : 0-56 | 0-26 0:86 | 0-74 D B 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 :— 12h tbam, gh gh gh 5h 6h 7h gh gh oh jh = gb Jhpm, 2b gh 4h 5h 6h 7h gh gh joh 4]b 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” A.M. ‘ 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 bas, 2% gh 4h 5h Gh 7h gh gh jogh qih gh jbpy, gh gh gh 5h gh 7h gh gh 0h 11h ip. ih. Th.) Ibs. Tb. tb, Ib, tibet hein, lh ibe mb. b;- Ib; Ib, Ib. Ibf Ib 1b.) Jb. Ib. bees 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 0:58 061 0:65 0°67 0:69 PRESSURE AND DIRECTION OF THE WIND. xcix These numbers still present several irregularities ; on the whole, however, the wind blows with the greatest force about 14 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. 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. 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. 1843-6. Sums of Pressures ob- * served at the 24 Obser- Resultant. Resultant. Resultant. Resultant. vation Hours for 100 Resultant. Days in each Month, resolved into Direction. | Mean.| Direction. | Mean.| Direction. Direction. || N. : b 5 .| Direction, ° lb. || 172 ° ° bo Ib. 0-36 0-22 0.39 0-15 0-28 0-34 0-13 0-16 0-15 0-45 0-44 Ib. 0:27 0-14 0-20 0:35 0-16 0.34 0-06 | 0-18 0-07 0.23 0-14 0-06 toe bo 443 ow SU PWSIKWAWS « . || 423 || 446 bo oo wo bo | 140 | 186 -| 161 =» || 249 || 176 ATK PR wre On~7 bo 0 mpnonwek ee OoOwFreATh OO (0A a be bl Tn OO bo ro PP PANAAM MAME sp Z2RRDnnAangn wseaezs 4444424435 CWWwWNKhOBr arto YP PsN NAnw Ma yn avaaasresase oke wr wre An vo bd mn W. N. 8. W. E. N. W. 8. Ww. W. Ww. W. WwW 4 = 0-13 . to —_ 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, 1843, and p. 434, 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. 8d, The sums of pressures of the southerly winds are greatest in November and January, and they are least in September. 5 4th, The sums of pressures of the westerly winds are greatest in December and January, and they are least in 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. 2b 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 oceurs 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 8S. 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 31 2°73 46 75 2-0 1:7 2:5 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 :— lah wbay, gh gh gh 5h gh 7h gh = gh gh 11h 0 gh qhpy, gh gh 4h fh gh | 7h Qh gh 10h 1h Tb. Ibe, ib Ibs Jb. Wbep. dh Ibs ob, Tha slb. (iby Ghyeedibpe Ib. Ib. lbspqodbe Tbil) Ib., W1boy elheeluemlon 0-15 O15 016 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 0:19 018 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 1843-6. . 44 444444444455 444244444243 DANNADNANDDADANM ANNRRANDDDD tn 4444284545 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" 4.x. 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, 12h 2 A.M, 4h 6b 8b 10 Ob 2 P.M. 4h 6h gh 104 21 21 2:1 2°3 2°3 2-4 2°6 2°8 2:9 2:8 2:4 2:2 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 45 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 pomts 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. s. ssw. sw. WSW. W. WNW. NW. NNW. 779 «1318 = «1668 867) 481177 8329 575 1088 2672 4212 1949 1198 726 932 866 The wind blew most frequently with a pressure of 0-1 lb., 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 increases 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. Radial scales. @, 1 inch=2000 lbs. 6b, 1 inch=2000 times. c, 1 inch=1 lb. * 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 reason the numbers of observations for each of the 16 principal points were always greater than for either of the two adjacent points, cil 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 pressures observed within 10™ at the hours of obser- vation. (See No. 198.) ; N. NNE. NE. ENE. E, ESE. SE: SSE: S&. ssw. SW. WSW. W. WNW. Nw. NNW. Ib. Ib. Ib. Ib. Ib. Ib. Ib. Ib. 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. Ss. SSW. sw. wsw. W. WNW. NW. NNW. Ib. Ib. Ib. Ib. Ib. Ib. Ib. Ib. Ib. Ib. Ib. Ib. Ib. Ib. Ib. Ib. 0-91 057 O43 O51 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 cin 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 scud, cirro-stratus, and cirrus, with the surface-current, and of the cirro-stratous and cirrous-currents with the seud-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 Howarp’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 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., 5 to W., and W to N., the signs are the same; in every case the mean upper currents proceed from points positive of the eurrents 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 Mortons 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- vatory, 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 current 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 E. Quadrant E. to 8. Quadrant 8. to W. Quadrant W. to N. Currents. mee No. of Dee Mean || No. of en, -| Mean || No. of Ries -| Mean | No. of iar | Mean Results,|Di#fs- Of) Result. || Results. |Di#8- Of) Result, || Results. Di Of] Result, || Results.|D! 8. OF! Result. Motion. Motion. Motion. Motion. Biden 227 +23 76 +24 664 +24 166 +20 aa 111 | —25| +71]} 20 | —23] 413} 58 | -13 | +20] 57 | -18| + 9 12 0 9 0 19 0 15 0 64 +40 46 +31 371 +40 113 +27 46 -51 +2 11 —25 | +20 43 -19 | +33 38 —35 | +11 3) 0 1 0 12 0 6 0 + 36 41 +21 190 +27 107 + 26 Cir.-str. minus Wind. Cir.-str. minus Oe Oe SS or or No | oo Oey | _ _ _ i bo lor) Ee Ne) a = : e381} -a214IP zo 9a" | pay Seud- 16 0 15 0 34 0 27 0 : ; 20 | +58 15 | +60 190 | +45 Bl (ean Cirrus minus 165) S59uleeesG 0 Breet oD ieee Gr at eae oGal| aS) ie —alglece 1s ieee ont 0 1 0 10 0 P 0 : . 20 | +35 1g | +54 107 | +36 gi | +27 Alaa 17. |eoagee || 9 | sa] 49g] 33 | 96.) +90 1 33 | —41.| 44.7 cue 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°= + 13°; 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 :— Seud-current minus surface-current, mean of 1434 results, = +14%5 Cirro-stratous current minus surface-current, mean of 754 results, = +422°:8 Cirrous current minus surface-current, mean of 349 results, = +29°6 Cirro-stratous current minus scud-current, mean of 683 results, =-+ 6°9 Cirrous current minus scud-current, mean of 339 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 :— Resultant direction of the surface-wind (No. 207), W. 21°S. pasisadhap saseiteniane esiaccints 7m scud-current, W. 7°S. +++ elrro-stratous current, Wer y2e0Ns - cirrous current, Wi id Ne 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 sanises isms E. toS., 179 =4+19"1 see teeeee S. to W., 1393 = + 26°-6 seecee eee W.toN., 466 = +10°6 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 E., 157 results, mean cirro-stratous and cirrous current minus scud-current, =— 1°2 RCAC E. toS., 88 =+15°9 aaaCGOre S. to W., 437 =+16°1 heedeoet W. to N., 340 =+ 38°2 In the quadrant N. to E. the mean of the two upper currents seems to differ nothing from the seud-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 sw7face-current, and that the motion of the mean of the higher currents, compared with the motion of the seud-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 the higher currents, and the upper current of southerly winds will become more westerly than the lower cur- rents. Tf, 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 eastward velocity of the lower latitudes more quickly than the upper currents, it will be evident that the lowest current from the north-west should become less northerly than the upper current, and that the lower current from the north should become less easterly than the upper current. his, it will be observed, agrees with the results previously obtained ; we find, however, in the northern quadrants, that the seud-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 current is 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 being 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. ev 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. 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.—lIt 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 25 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 8 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’s Moon Age. 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 1846, ie mean 15 days about new moon = 6°80. 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 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, ‘ 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 Joun’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 and 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 JOHN refers, in an addendum, page xv. of his “ Outlines,” to what he conceives a fact confirmatory of his conclusion, thus :—‘ M. Araao 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 diurnal EXTENT OF SKY CLOUDED. evil 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. March. 7 Mean Dec. March. | June. Sept. Year. April. Time. Jan. April. July. Oct. — 15 || +0-59 | +0-53 | +0-49 | +0-57 || +0-57 15 || +0-52 | +0-60 | +0-38 | +0-69 || +0-55 15 || +0-58 | +0-56 | +0-20 | +0-41 | +0-45 15 || +0-64 | +0-63 | +0-26 | +0-28 | +0-44 — 0-49 15 || +0-55 | +0-31 | +0-03 | +0-28 | +0-30 — 0-23 15 || —0-09 | +0-29 | —0-06 | +0-18 || +0-08 — 0-43 0 1 2 3 4 5 +0-02 : - 6 15 || —0-38 | —0-04 | —0-15 | +0-01 || —0-14 7 8 B) 0 1 — 0-62 —0-41 — 0-30 + 0-26 15 || —0-57 | —0-33 | —0-15 | —0-31 || —0-34 +0-29 15 || —0-40 | —0-57 | —0-34 | —0-90 || —0-56 +0-52 15 || —0-43 | —0-56 | —0-33 | —0-78 || —0-53 15 || —0-86 | —0-75 | —0-36 | —0-78 || —0-69 15 || —0-63 | —0-29 | —0-48 | —0-63 || —0-52 + 0-52 +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, 952 am—35 p.m. 62 35™ a.m. 10hpm. 55 25™ p.m. Spring, Feb., March, April, 95 am—3" p.m. 62 10™ a.m. 105 p.m. 65 10™ p.m. Summer, May, June, July, 9) aM. 54 40™ am. 12pm. 45 35™ pm. Autumn, Aug., Sept., Oct., 1* pm. 85 55™ a.m. 82pm. 65 15™ p.m. Year, 112515 4.m. 52 35m a.m. 105 15m p.m. 5? 35™ P.M. Jaw 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 new 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 ? I am 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. I 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. os. 1845 anp 1846. 2d evill GENERAL RESULTS OF THE MAKERSTOUN OBSERVATIONS. The maximum extent of clouded sky occurs earliest in summer, at 94 4.m,, and latest in autumn, about 1" p.m. ; in the other two quarters, however, the value from 9" 4.m, till 35 p.m. 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 115 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 Ewtent 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. Feb. | March. in. in. 1-33 | 0-73 2-03 | 2-85 1:08 | 0-75 2-93 | 1-29 2-61 | 2-29 1-47 | 1:99 1-22 | 1-90 0-98 | 1-98 1:50 | 0-82 1-17 1-35 231. The quantities in Table 101, from July 1842 till December 1849, were obtained from the Observa- tory gauge, which has its funnel-mouth 8 inches above the soil ; the quantities from January 1832 till June 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’ obser- 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 37-854 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. QUANTITY OF RAIN. cix 234. Annual Variation of the Fall of Rain.—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 0:0894 inch. The daily means for the quarterly groups with the greatest range of values are as follow :— in. in. Winter, Nov., Dec., Jan., =0:06738 Summer, June, July, Aug., = 0-0788 Spring, March, April, May, =0:0519 Autumn, Sept., Oct., Nov., = 0-0902 in. Year, = 0:0722 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. daons bi sins oh Se MDa etasete please sn as, «576 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. 7 ’ hee | Pe ieee ee nS on TABLES OF RESULTS FROM THE MAGNETICAL OBSERVATIONS MADE AT THE OBSERVATORY OF GENERAL SIR T. M. BRISBANE, Barr., MAKERSTOUN. 1845 anp 1846. MAG. AND MET. ons. 1845 ann 1846. bo RESULTS OF MAKERSTOUN OBSERVATIONS, 1845. TABLE I.—Mean Westerly Declination for each Civil Week-Day and Week in 1845. Feb. | March. 25° Coanoaurwwy 15-12 [14-88] 14-55 14.38 16-13 14-73 14-17 13-77 [13-98] 13-35 13-79 14.05 13-39 [11-52] 11-32 10- 12. 11- [10- 10- 09. 10: 09. 10: 10: [09: ll. 08. 08- 09. 08: 08- [0s- 08. 08. 07-98 | 07-97 08: 09. 07-20 | 06-60 [0s- 77 06 00 64]| 08-22 08 | 08-99 63 | 08-16 28 | 08-90 91 | 07-57 19 | [08-02] 07 | 06-96 83]| 08.01 53 | 08-55 31 | 08-43 99 | 08-32 09 | 07-53 10 | [08-25] | 62 | 08-18 44]| 08-37 53 | 08-68 30 | 08-05 03 | 08-47 07 | [08-08] 65]| 07-79 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 of West Declina- tion. Moon’s Age. Variations | of West Declina- tion. After Moon || farthest North. 0:34 OMIA MNAWNHH OF Da OHNANAWNE OF a whore Variations of West Declina- tion. After Moon farthest North. Variations of West Declina- tion. Before | Variations Perigee, of West Declina- tion. Apogee. 0-56 ~] Py "2 NOU BRwWNeE De nwWwkhaDs 0:17 0-43 0-09 0-33 0:09 0-03 0-10 0-36 -] 5 < NOAuUBWNWS PeNMWwWRaAD IE Variations of West Declina- tion. j | OMDNIAMNL wwe March. 14-08 [14-69] 3-26 5-90] | [16-20] 7: 15-59 16-25 18-05 19-12 11-32 14.49 [18-64] 20-68 26-63 19-59 13-88 22.25 17-51 [14-50] MaGnetic DECLINATION, 1845. TABLE I11.—Diurnal Range of Magnetic Declination for each Civil Day, as deduced from the Hourly Observations, with the Mean for each Week in 1845. May. June. July. Aug. Sept. Oct. Nov. Dec 21-21 |[15-50]} 14-43 | 29-87 | 15-44 | 13-52 | 18-17 5-18 9-53 | 10-76 8-70 | 19-87 | 20-00 8-50 | [14-92]| 12-13 12-17 | 10-76 | 10-87 | [17-36]] 19-74 | 15-78 | 12-56 | 31-83 {13-36]| 17-54 | 14:59 | 16-88 | 15-20 8-39 | 12-91 20-17 9-93 | 13-22 9-87 | 10-97 | 16-34 | [10-73]| 23-98 10-51 13-19 | 13-39 | [12-59]| 13-03 13-65 | 11-62 4-87 8-80 14-14 | 16-46 | 15-06 | 11-42 |[14-50]] 10-59 | 16-27 |[ 9-51] 12-36 |[14-88]| 14-76 | 21-60 | 20-69 9-49 7-18 6-86 14:56 | 19-31 10-39 | 18-79 | 11-06 | 30-88 |[ 9-76] 3-79 11-17 | 15-76 | 14-69 |[14-65]| 10-05 | 26-76 | 13-95 6-95 [13-22]] 11-16 | 13-86 | 11-63 | 16-42 9-21 9-18 5-28 14-41 14-03 9-38 11-44 | 13-36 | [14-94] 7-11 6-67 12-71 12-28 |[12-70]|} 13-03 | 14-90 6-31 4:15 | 32-87 14-14 | 15-86 | 12-52 9-37 | [16-02] 6-58 5-06 | [15-63] 17-26 | [12-56]| 13-60 | 19-75 7-58 9-89 4-63 | 27-56 18-44 | 12-83 | 12-15 | 15-49 | 13-89 9-22 |[11-48]| 12-79 11-20 9-24 | 15-14 | [14-86]] 30-00 | 20-70 | 25-30 8-61 [15-81]| 11-14 | 13-99 | 18-52 | 27-22 | 13-16 | 21-02 15-49 19-31 | 14-16 | 16-15 | 13-36 | 18-84 | [19-52] 8-70 3-50 15-76 | 15-21 | [14-14]] 12-65 | 13-29 | 22-61 6-82 8-21 12-91 18-42 | 11-03 | 14-78 | [15-47]| 36-57 6-33 | [ 7-60] 18-07 | [14-20]|} 13-05 | 15-71 10-71 14-85 9-74 5-49 12-44 | 13-39 | 15-48 | 18.49 9-08 5-52 |[ 8-13] 6-73 14-38 | 13-88 | 12-02 | [15-63]} 13-71 11-69 | 10-47 6-20 (11-91]] 10-17 | 26-07 | 16-15 | 29-96 | 13-26 8-44 4-22 8-19 | 11-92 | 11-00 | 16-77 | 11-74 |[ 9-69] 6-98 5-01 9-01 13-86 | [13-38]| 11-91 | 34.57 8-20 9-91 6-39 9-38 | 18-28 | 9-06 | 12-41 |[19-25]} 11-27 | 10-19 |[ 8-17] 10-87 |[13-08]) 10-90 | 37-11 11-12 8-23 | 10-56 4-07 14-40 | 11-29 | 11-23 | 22-00 | 14-60 7-70 |[13-30]| 16-99 28-70 13-55 | [21-12] 14-19 12-36 10-02 After Moon farthest North. D CHOTANKR WHE OF TABLE IV.—Means of the Diurnal Ranges of Magnetic Declination, with reference to the 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. || Gott. Mak. | RK OOODNAUKWNK SO — March. ote Jan. Feb. | March.| April. | May. | June. | July. | Aug. | Sept. Oct. Nov Dee. Year, h. , , , , , ‘ , , 2 , : , , 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 1 || 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 I 1-68 ri 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 ———————E———— ESE Eee eee EE 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. mMOODNTNMDUNPWNH OS — MAG, AND MET. ops, 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. LUNATIONS. Moon’s || _ 2 — Hour- | | | : se Angle.|| 1st. | 2a. | sa. | 4th. | sth. | 6th. | 7th. | sth. | oth. | 1oth,| 12th. | 12th. | igen. || Sum || Win- | year, = Coanaukwnro*’ 2.03| 0-72) 1-18| 0-96 2.60| 0-75 | 0-58 | 2.05| 1-02] 1-93| 1-23 | 0:79| 0-89 | 1.02 1-07 1.66 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. ménus Table VIII. Jan. Feb. | March.| April. | May. | June. | July. | Aug. | Sept. Oct. Nov. Dec. Year. 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 |+4+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 ||—0-58|+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 |4+0-87 | — 0-72 | —0-30 | 4+ 1-15 | —0-16 | + 0-42 |+0-51 | —0-49 | — 0-28 | + 0-08 18 /+1-25/+0-37|+40-03 |+0-44 | —0-66 | —0-12|+4 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 | 4+-0-56 | + 0-64 | + 0-68 20 |+1-49|+0-56|+0-36')+0-35 |+0-63 |4 0-79 | + 0-46 |+ 2-59 | + 2-60 |+0-41 | + 0-87 |+0-82 | + 1-00 21 | 4+1-40|40-82|+ 0-69) 40-78 | + 0-59 |-+1-05 | 4+ 0-37 |-+ 1-75 | + 1-94 |+0-59 | + 1-28 | 40-98 | + 1-02 22 | 4+1-25|+0-73 |+0-91 |+0-79)+0-88 |+0-83 | 4 0-16 |+0-37 + 1-43 |+ 0-24 |+0-90 |+ 1-06 | +0-79 23 | +0-61|+1-38 |+ 1-07 | 40-46 |+0-98 |+ 0-71 | — 0-25 | +. 0-58 | + 0-79 |+ 0-57 |+ 0-36 |+ 0-99 | + 0-68 0 |+1-49|/+1-53}+1-18 |4+0-19|+1-38 |+0-24 | — 0.27 |+0-58 | + 0-77 | + 0-56 | + 0-95 |+ 1-01 | + 0-80 1 | +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 2 |41-46)4+1-33 |+ 1-37 |+ 0-41 |+4+1-89 |+ 0-16 |+0-51 |+0-55 |+ 1-06 + 1-35 |4+ 1-48 |+0-64 | + 1-01 3 | +1-04|+0-55 | + 1-33 |+0-04 + 1-23 |— 0-40 |4+.0-63 |+ 0-66 |+0-72|+ 1-03 |+1-10|+1-12]+0-75 4 |+4+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 5 |—0-08 |— 0-09 | — 0-36 |— 0-34 |+0-37 | + 0-28 |— 0-45 |+0-78 | — 0-26 |+ 0-09 | — 0-26 | — 0.46 || — 0-07 6 |+0-18 —1-42|—1-59|—0-58 |+0-12|—0-01 |—0-68 | — 0-93 | — 1-27 |+0-78 | — 0-08 |— 1-19 || —0-56 7 | —1-20|—1-32|—1-06 |—0-85 | —0-11 |— 0-19 | —0-42 | — 0-67 | — 1-28 + 0-87 | — 1-27 |— 0-92 || —0-70 8 9 10 ll — 1-07 |— 1-37 | — 0-80 | — 0-64 | —0-53 | — 0-02 | —0.89 | — 0-63 | — 2-33 |+ 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 | +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 I 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. 3-00 | [1-94] 1-35 | 1-22 1-66 | 1-11 [1:63] TABLE XI1.—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 After Mean |Moon’s| Mean Moon Mean Moon Mean Difference.) Age. | Difference.,|/ farthest |Difference.| farthest | Difference, North. North. 1:57 1-57 1-72 1-78 1-72 1-61 2:03 1-34 1-82 1-84 2-02 1-62 1-67 2.28 1-69 1-44 1.40 2-11 1-87 1-66 1:78 1-32 1-54 1-40 1-69 1-75 1-75 1-47 1-65 1-48 D OHOIAMHR WOR Os CONIA MPR wWWE OF 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. SB COUOONAURWNHRE Ot —_ TABLE XIV.—Number of Positive and Negative Differences which occur between the limits of successive Minutes, for each Month, and for the Year 1845. Month. March 7 onwwpwnry April May WPWwWwaQwaorna a oe June July Aug. PHI EET ERIE I EEE Itt eit itis e MONI DIwowWDDMDoOowmwoorRWNIAWwWNnNte BO AOrnrnwPwUwokwOoee enw auwsIrnwonwre WNT RR WHOwWUNWwrIIDnnNe: ROWE NNR NW Wee: DAK wWewweps: Ses) eo — oo Om m bo ee a es ee ee eee eee ere ee eee _ ss MacGnetic DECLINATION, 1845. TABLE XV.—Number of Positive and Negative Differences which occur between the limits of successive Minutes, for each Hour in 1845. Makerstoun Mean Time. | Ip — oe wo bo ee be _ a _ on _ _ os io?) _ oa TORR Wee wWwWwWwNoae WW dO OO Pew nwmrwawwrowa: pn _ © Re pew: bo > RWONW RE RWORWohewarhop aw bo wo _ Onmweeepwi: bo w ns fo PB Bb wwowrtonr: on foe pe: o so Qreoawnwunrdy © on} = o a F a a a a Pe = Re a i a 8 E 1 A 5 8 a 2 = x a me a s a is _ = mpw: \ | \ \ | \ \ MAG. AND MET. OBS. 1845 ann 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. Month, January February March April May June July August September October November December ANaPRAD: far) Year TABLE XVIJ.—Number of Differences in 1000 (without reference to sign) which occur between the limits of successive Minutes, for each Hour in 1845. bo WWWAARARBDWAWBWWH oe : AWAARDWag: _ 5 WCWRWWaAGtwwww: mOOCONANRwWNeK CO?’ —_ HorizonTaL CoMPONENT OF MAGNETIC Force, 1845. 11 TABLE XVIII.—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. Jan. Feb. March. | April. 0-00 0-00 0-00 0:00 4476 | 4890 | 4756 | 5030 4831 | [4903] | [5031]| 5306 5184 | 5141 | 5158 | 5114 5307 | 5096 | 5352 | 5025 [5368]} 5193 | 5326 | 5034 5573 | 4385 | 5327 | [5144] 5645 | 4984 | 5523 | 5249 5669 | 4987 | 5279 | 5067 4095 | [4938] | [5248]| 5373 3605 | 5005 | 5030 | 5433 4970 | 5086 | 5005 | 5260 [4686]]} 5179 | 5324 | 5506 4812 | 5366 | 5162 | [4625] 5309 | 5314 | 5082 | 2008 5327 | 5317 | 4957 | 4714 5166 | [5367]| [4981]| 4829 | 5383 | 5383 | 4833 | 4784 5230 | 5365 | 5113 | 5124 [4971]| 5456 | 4742 | 5019 3602 | 5904 | 4803 | [4831] 5198 | 4718 | 4847 | 4332 5247 | 4663 | 4803 | 4567 5019 | [4762]| [4707]| 5158 4637 | 4312 | 4719 | 5407 4883 | 4479 | 4186 | 4960 [4955]| 4498 | 4886 | 5054 5039 | 4886 | 4416 | [4866] 5033 | 4708 | 5004 | 4305 5121 4917 | 4452 4542 [4971]| 5022 4557 5156 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 Variations | After | Variations Variations | Before | Variations of Hori- ! of Hori- of Hori- Moon | of Hori- of Hori- and of Hori- zontal . zontal zontal farthest} zontal zontal after zontal Component. Component. Component.| North. | Component. || Perigee.] Component. | Apogee.| Component. 0-00 5 0-00 : 0-00 : 0-00 0241 0311 0441 0497 0256 0239 0381 0503 0231 0111 0443 0510 0164 0265 0209 0329 0200 0370 0312 0000 0214 0135 0249 0310 0118 0291 0227 0339 0230 0246 0150 0394 0336 0000 0213 0426 0217 0260 0286 0370 0199 0399 0258 0429 0431 0367 0391 0496 0370 0294 0332 0486 0409 0346 0331 0464 0372 0350 0-00 0209 0321 0241 0315 0177 0289 0423 0482 0424 0167 0000 0227 0358 0311 0234 ) Se € 9 4 NOUBPWNHOR PE NwWwWhRaAaD NOUR WIE Pe Wh ADA 12 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845. TABLE XX.—Diurnal Range of the Horizontal Component of Magnetic Force for each Civil Day, as deduced from the Hourly Observations, with the Mean for each Week in 1845. || Jan. Feb. March. | April. May. June. July. Aug. Sept. 00 00 0-0 oo oO 0-0 M 0157 | 0203 | 0174 | 0336 | 0602 | [0377]| 0435 | 0420 | 0476 0151 | [0218] | [0222]| 0290 | 0252 | 0242 | 0472 | 0386 | 0588 00s1 | 0183 | 0220 | 0426 | 0358 | 0351 | 0354 | [0477]| 0487 0073 | 0164 | 0136 | 0417 | [0411]| 0346 | 0368 | 0745 | oss9 | 0336 | 0221 | 1193 [0119]| 0252 | 0172 | 0431 | 0409 | 0438 | 0323 | 0448 | 0407 | [0341]| 0343 | 0262 0095 | 0370 | 0193 | [0434]| 0400 | 0384 | [0377]| 0445 | 0416 | 0445 | 0200 | 0221 0225 | 0182 | 0227 | 0473 | 0448 | 0427 | 0269 | 0340 | [0506]| 0312 | 0358 | [0349] 00ss | 0134 | 0269 | 0386 | 0412 | [0446]| 0582 | 0508 | 0540 | 0316 | 0150 | 0146 1687 | [0215]| [0232]| 0472 | 0447 | 0526 | 0368 | 0427 | 0468 | 0727 | [0203]] 0123 1375 | 0221 | 0315 | 0307 | 0405 | 0514 | 0421 | [0395]| 0316 | 0693 | 0127 | 0150 0169 | 0143 | 0214 | 0344 | [0416]] 0385 | 0451 | 0370 | 0347 | 0308 | 0210 | 0130 [o661]} 0241 | 0172 | 0347 | 0339 | 0454 | 0398 | 0353 | 0399 | [0401]| 0171 | 0231 0230 | 0325 | 0244 | [0872]| 0427 | 0340 | [0403]| 0374 | 0423 | 0265 | 0153 | 0336 0249 | 0127 | 0346 | 3542 | 0469 | 0367 | 0477 | 0392 | [0375]| 0207 | 0154 | [0245] 0259 | 0105 | 0351 | 0398 | 0543 | [0377]| 0361 | 0699 | 0319 | 0209 | 0161 | 0392 0126 | [0176]| [0340]} 0297 | 0799 | 0316 | 0311 | 0521 | 0319 | 0311 | [0260]| 0150 0203 | 0214 | 0323 | 0351 | 0609 | 0374 | 0377 | [0513]| 0445 | 0378 | 0654 | 0230 021s | 0118 | 0447 | 0413 | [0578]] 0414 | 0364 | 0445 | 0545 | 0328 | 0245 | 0300 || [0479]| 0167 | 0332 | 0683 | 0599 | 0356 | 0377 | 0503 | 0326 | [0359]| 0196 | 0101 1715 | 0375 | 0668 | [0469]| 0475 | 0473 | [0418]| 0519 | 0336 | 0276 | 0141 | 0115 | 0106 | 0360 | 0389 | 0540 | 0441 | 0444 | 0493 | 0475 | [0396]] 0405 | 0188 | [0157] 0504 | 0378 | 0307 | 0416 | 0493 | [0401]| 0434 | 0402 | 0308 | 0455 | 0302 | 0143 | 0335 | [0439]| [0488]| 0409 | 0386 | 0438 | 0462 | 0337 | 0364 | 0213 | [0182]| 0153 0452 | 0627 | 0559 | 0599 | 0573 | 0431 | 0479 | [0388]| 0496 | 0232 | 0153 | 0132 0378 | 0406 | 0528 | 0619 | [0404]| 0266 | 0813 | 0360 | 0872 | 0335 | 0210 | 0143 [0473]| 0490 | 0475 | 0571 | 0312 | 0428 | 0344 | 0444 | 0368 | [0203]| 0099 | 0119 0479 | 0360 | 0487 | [0588]| 0337 | 0349 | [0448]| 0308 | 0571 | 0158 | 0139 | 0230 0361 | 0269 | 0274 | 0875 | 0321 | ‘0473 | 0389 | 0374 | [0436]| 0133 | 0508 | [0197] 0833 0384 | 0384 | 0314 | [0441]| 0337 | 0770 | 0266 | 0146 | 0323 | 0172 0277 [0347]| 0480 | 0585 | 0490 | 0329 | 0588 | 0256 | 0182 | [0817]! 0370 0427 0148 0-0 0-0 0281 0533 | 0148 0328 | [0299]} 0249 0309 | 0260 | 3538 TABLE XXI.—Means of the Diurnal Ranges of the Horizontal Component of Magnetic Force, ; with reference to the Moon’s Age and Declination, for 1845. i After After Moon’s Mean Moon Mean Moon Range. |/farthest) Range. |farthest North. North. 0-00 Day. 0-00 Day. 3310 0 3481 14 5104 1 4383 15 4401 2 3637 16 3537 3 6304 17 6065 4 3565 18 3967 5 4209 19 3315 6 3890 20 3822 7 4159 21 5964 8 4008 22 3205 9 3937 23 3396 10 3911 3394 11 3126 4643 12 3486 3461 HortzontaL CoMPONENT OF MAGNETIC ForcE, 1845. 13 TABLE XXII.—Hourly Means of the Scale Readings of the Bifilar Magnetometer, corrected for Temperature, for each Month in 1845. Mean Time. Feb. | March. May. | June. | July. | Aug. | Sept. | Oct. - | Dee. Se. Diy. | Se. Div. Se. Diy. | Se. Div. | Se. Div. | Se. Div. | Se. Div. | Se. Div. Se. Div. 535-40|537-80 539-33 |542-27|541-59)541-57|536-77| 539-26 538-78 534-91)534-51 538-18]540-78 | 539-92/539-37|538-01/540-23 539-54 : 533-87 |532-13 537-21/539-95)| 539-07 |537-89|535-62| 539-81 541-01 533-95 |535-32 537-07] 539-57 |538-84| 538-85 |536-65| 541-74 541-93 535-63|533-77 536-85|539-49| 537-58 |/538-95|536-96/ 542-74 543-86 536-03 | 536-24 535-54|537-68| 536-07 |537-22|538-12| 542-07 545-51 537-63 | 536-03 534-76] 535-72) 535-00 | 534-65 /535-81| 541-46 546-32 537-30|534-73 530-52|532-90|532-82|530-03|530-13)540-21/544-91|544.58| 535-91|530-90 526-57| 529-20) 529-00) 526.02) 526-43| 535-22 543-52 532-50 | 528-22 524-59) 526-90) 526-68 | 523-63) 523-59) 530-66 541-06) 531-56 |525-01 524-77| 525-94) 526-04| 524-09 | 521-87) 529-50 538-49 | 531-93 |527-75 526-59) 529-37)|529-88| 527-32) 526-60| 530-20 536-76| 533-43 |531-71 530-88] 525-78) 533-73/533-11/531-47| 532-61 537-72) 535-52 |533-96 536-34| 540-03 |538-20/539-80/537-02| 537-59 540-44 | 537-34 |539-03 |540-00| 543-74) 542-86) 541-36) 538-58/ 538-91 542-14) 538-76 |540-26 544-30) 546-29| 546-43 |546-13|540-49) 540-77 542-97 537-56 | 541-06 548-14 547-55) 548-13) 547-30) 541-90) 540-72 544-45 537-43 | 540-32 549-39) 549-32|549-89|547-73|543-10/ 541-30 545-01 537-70 |540-37 550-47) 550-32) 552-12) 547-21)545-31| 542-82 549-94 538-17 | 540-63 549-24) 550-64) 549-97 | 548-39| 543-89 | 542.91 546-16) 537-82| 538-25 546-57|548-64|549-39| 545-73)|540-40) 542-43 539-68 537-64/ 540-11 544-59) 546-88 | 545-80) 544-00) 541-83 542-46 540-22) 535-03 | 538-45 542-35| 545-34) 543-12) 543-46 | 539-66) 540-61 540.25) 536-35 | 538-67 541-07| 543-26) 543-19) 543-18|540-20| 539-99 540-18 SE March. 0-00 1791 1330 0997 1443 1226 1572 1543 1361 0825 0449 0000 0384 0938 1253 1963 2135 2247 2143 2150 2187 1854 2114 1882 1912 FOoUnmAnNauehwn-o — ; MAG. AND MET, oBs. 1845 anp 1846. D 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. May. | June. Se. Div. Se. Div. | Se. Diy. Se. Div. 38-06 40-33 | 42-69 42-28 36-21 39-79 | 40-98 41-91 35-80 39-11 | 39-88 42-58 36:30 38-79| 39-41 43-79 36-59 38-38 | 38-97 " 44-18 36-99 36:35 | 37-34 44-83 36-55 : 34-95 | 35:52 . : . 44-66 35°89 31-91] 32-76 " B 42-93 32-49 27-38} 30-13 D : 38-00 29-29 o 24-61) 27-31 F : : 35-40 26-34 24-51} 25-64 33-63 26-89 26-09 | 29-17 34-78 30-73 30-44 | 34.94 38-40 32-71 35-34 | 40-64 . 41-22 36-02 39-57 | 42-58 42-60 38-31 44-04 | 46-44 44:27 38-77 Hi 45-46 | 47-60 : . D 44-69 38-32 48-14} 49-54 44-67 38-61 48-63 | 50-46 : 43-98 39-87 . 47-37 | 50-56 : 43-55 38-32 45-72 | 49-16 43-39 38-54 44-95 | 47-01 42.06 38-56 42-47 | 45-07 42-36 38-96 41-08 | 43.77 42-80 mM SOMDNIAUKEWNHHOSO — im at HorizontaL 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. 8th. | 9th. | 10th. 0-00 0112 0244 0326 0109 0000 0071 0200 0190 0192 0599 0654 : P 0344 ! wConNaunkhwworHo? 0490 0280 0612 0647 0535 0515 0419 0262 0325 0258 0451 0070 0119 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. Feb. | March.| April. | May. Se. Div. | Sc. Div. | Sc. Div. | Se. Div. —0-53 | —0-26 |—3-74 |—1-00 — 0-24 |— 1-70 | —3-96 |— 1-61 — 0-93 | —3-67 | — 9-93 |— 1-90 — 1-70 |—0-98 | —0-25 | — 1-72 — 0-61 | — 2-82 | — 2.02 |— 1-53 — 0-59 | —0-75 | — 1-69 |—0-81 + 0-36 | —0-52 |—0-75 |—0-19 — 0-23 |—1-16|+0-53 | — 1-39 — 0-22 |—1-59|+0-18 | —0-81 — 2-14] — 1-07 | — 0-28 | — 0-02 — 1-06 |—1-33)+ 1-28 | + 0-26 +0-14/+0-86 |+ 1-35 |+0-50 + 1-34 |+0-98|+ 1-31 |+0-44 + 0-40 |+ 1-25|/+1-49 |+1-00 +1-18|+ 3-01 |+0-86 |+ 0-43 +2-54|+1-95|+ 2-27 |+ 0-26 +1-19|+2-29|+ 3-62 |+ 2-68 —0-19 |+ 2-00 }+ 2-61 |+1-25 + 0-14 |+ 1-76 | + 2-32 |+ 1-84 + 1-56 |+ 1-87 +1-22)+40-85 +1-21|—0-36 +0-81|}—0-12 +0-02|-—0-01 SK COON OURWNYH SO — 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. March. Se. Div. 2-12 [2-89] 2-29 2-90 2-90 2-72 4-00 2-99 [2-70] 2-17 CHBNANEWNWe TABLE XXIX.—Mean Difference of a Single Observation of the Bifilar Magnetometer from the Monthly Mean at the corresponding Hour, with reference to the Moon’s Age and Declination, for 1845. After After Moon’s Mean Moon’s Mean Moon Mean Moon Difference.| Age. |Difference.|| farthest | Difference.| farthest North. North. D WOHNAMTAWNH OS OHODIAARWNH OF HorizontTaL 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. a4 Jan. Feb. | March.} April. | May. | June. | July. | Aug. | Sept. Oct. Nov. | Dec. Year. | ey h. Se. Div. | Sc. Div. | Sc. Diy. | Sc. Div. | Sc. Diy. | Se. Diy. | Se. Div. | Se. Div. | Se. Div. | Sc. Div. | Sc. Div. | Se. 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 | 4-87 | 4-11 | 3-30 | 2-23 | 5-19 || 5-89 15 4-46 | 400 | 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 |} 280 | 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 | 4-90 | 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 anp 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. Civil | Day Jan. Feb. March. | April. May. June. July. Aug. Sept. Oct. Novy. Dec. ay. || 0-00 ooo | ovo 0,00 0-00 ooo | 0-00 0-00 0-00 0-00 0:00 0-00 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 5517 5275 5090 | 4813 | [4626]| 4905 4475 4330 5219 4 5 | 6014 5712 5525 5492 | [5262]| 5262 | 4883 4693 4842 | 4381 4535 | 4683 [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 5520 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 11 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 | 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] 15 5872 5593 5455 5325 5119 | [5083]| 4892 4800 | 4638 4131 4381 4315 16 5912 | [5562] | [5472]| 5387 5158 5171 4739 4887 4575 4267 | [4379]| 4213 17 5959 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 23 |) 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 31 5711 5502 4970 4636 | [4505] 4278 | 4048 || | il } 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| 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 ponent. ponent. || North. | ponent. | North. | ponent. |Perigee. ponent. | Apogee, Day. 0-00 Day. 0-00 | Day, 0-00 Day. 0-00 | Day. 0-00 Day. 15 0051 0 0052 | 0 0170 14 0170 7 0133 7 16 | 0069 1 0061 | 1 0106 15 0132 6 0129 6 17 0044 2 0100 | 2 0128 16 0160 5 0115 B) 18 0068 3 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 1 0138 1 22 || 0077 7 0069 ve 0134 21 0198 || P 0130 A 23 0103 8 0037 8 0161 22 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 || 0064 4" 11). (00695 1 <1 0166 25 0150 4 0152 4 27 =|} +0000 12 | 0003 | 12 0152 26 0105 5 0166 5 28 || 0029 | 13 0037 13. | 0160 27 0137 6 0142 6 29 || 0025 | 14 0053 | | Nae 0063 | 76 VERTICAL COMPONENT OF MAGNETIC Force, 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. March. 0:00 0724 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 April. 0:00 0:00. 0209 | 4177 0343 | 0190 0692 | 0224 0240 | [0904] 0331 | 0282 [0417]| 0256 0252 | 0298 0444 | 0355 0542 | 0292 0336 | 0298 0241 | [0471] 0189 | 0451 [1429]} 0431 6551 | 1000 0775 | 1237 0483 | 0746 0359 | 0446 0727 | [0862] 0797 | 1739 [0649]| 0346 1242 | 0659 0467 | 0878 0301 | 0454 0721 | 0378 1074 | [0419] 0342 | 0204 [1136]| 0333 3602 | 0270 0512 | 0365 0564 | 0530 Sept Oct. Nov Dec. 0-00 0:00 0:00 0-00 0:00 0-00 0-00 (0580]} 1075 1650 0945 0435 0984 0217 0313 0405 1223 0835 0608 | [0786]| 0362 0407 0430 | [0932]| 1783 0521 0611 4401 0826 0313 1091 0847 0715 0525 1063 0517 0420 0643 0775 | [0515]| 2124 0496 0311 | [0580]} 0524 0435 0533 0465 0264 0469 0781 0499 | [0717]| 0283 0790 | [0382] [0555] | 0873 0889 1099 0429 0325 0161 0643 0664 1071 0642 2122 | [0437]| 0117 0780 0609 | [0579]| 0502 1802 0216 0192 0612 0359 0417 0451 0524 0587 0178 0433 0458 0201 0936 | [0873]| 0241 0300 0591 | [0390}| 0400 0520 0227 0182 0881 0446 0269 0258 | [0534]| 0261 0185 | [0461] [0440]} 0242 1042 0373 0305 0167 0432 0424 0406 0445 0223 0326 | [0467]| 0508 0297 0269 | [0593]| 0700 0659 1141 0467 0451 0248 1313 2219 0159 0698 0442 0324 0378 0259 1017 | [0768]| 0429 0165 0348 | [0326]| 0244 0403 0658 0279 0178 0231 0293 0258 | [0783]| 1196 0190 | [0210] (0331]| 0492 0329 0279 1611 0281 0056 0381 0278 0425 0397 0225 | [0266]} 0210 0393 0951 | [0464]| 0383 0468 0271 0211 0309 2319 0591 4499 0851 0154 0307 0399 0296 0937 0904 | [0395]| 0421 0215 0383 | [0798]| 0247 1659 0221 0208 0326 0602 0497 0339 | [1449]| 0236 0460 | [0385] [0583] | 0286 2689 0577 0372 0493 0240 0634 0440 2737 0621 0174 | [1023]| 0779 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. Moon’s Age. D. CHONTAMNR WHE os After Moon farthest North. D WCHIAAAWNYH OF After Moon farthest 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. Feb. | March,| April. | May. | June. | July. Aug. | Sept. Oct. Nov. Dec. Gott. | Mak. | |e ena Mic. Div.| Mic. Div.| Mic. Div.| Mic. Diy.| Mie. Diy.| Mic. Div. | Mic. Div. | Mic. Div.] Mic. Div. | Mic. Diy. | Mic. Diy.| Mic. Diy. | 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] 444.8 416-0} 418-8] 418-4 577-4| 548-4] 528-6] 519-2] 512-0} 507-6| 465-4] 451-6 ‘8 | 418-2] 419-6] 419-7 | 578-6) 548-7| 534-7| 528-9) 519-8| 511-4) 467-6 458-2 -1| 419-3 | 420-3) 419-8 581-1] 548-6] 541-3] 537-5| 524.5] 514-5) 472-4] 465-2 +2| 422.3] 420-2} 420-3 | 581-7] 550-5| 545-6] 541-6| 526-4| 515-0| 474-6| 469-3 -0 | 427-2| 422.0) 420-7 | 582-5| 552-7| 550-4] 544-1| 522.4] 513-9| 477.2| 469-0 -9| 431-5 | 425-4) 422.5 582-2| 555-7) 550-5| 543-4] 517-0| 507-9] 474-0| 467-9 +5 | 432-5 | 426.5] 423-4 | 586-1| 557-7| 550-2) 541-0} 511-9} 500-4) 473-8) 465-8 -7| 429-3 | 425-6| 424.3 590-5| 558-4| 545-6] 535-6] 508-2| 490-3] 468-9| 461-8 -8| 430-2| 428-9} 426-6 591-3| 561-4! 542-6| 531-1) 507-9| 486-6] 466-1 | 460-2 -5 | 433-2} 432-9] 429.8 | 595-9] 566-4| 545-5} 534-8] 513-8] 489-7| 468-9| 465-0 -7| 436-7| 435-8| 433-0 | 602-2| 572-4] 552-1] 541-6] 519-3} 493-8) 472.4) 473.5 -1| 443-2} 440-9| 439-5 607-9} 581-9 549-2| 528-8| 500-6] 479-0] 481-1 -3| 447-4] 445-5] 450-0 609-1 | 583-5 -1| 551-9] 534-1| 509-4] 485-9] 487-9 +8 | 451-2| 447-7| 450-7 | 610-7 | 587-0 3-0| 555-5| 540-5| 513-4] 489-7 | 489-9 -2| 448-0 | 447-4) 453-9 610-3| 583-2] 579-0| 558-8} 540-5| 514-3} 490-3) 487-3 -0| 444-0 | 447-1} 453-8 | 613-2] 576-2 -3| 556-6] 535-5| 512-4] 489-6] 478-8 -0| 440-9 | 443.3) 449.5 | 611-1} 572-8 -2| 549-9] 531-6] 510-3] 486-0} 472-7 -1| 438-2] 439-8] 437-1 601-2} 566-3 -4| 543-8] 525-4] 505-1] 479-3} 459-3 -6| 436-0] 433-7| 434-9 582-5| 563-2 -9| 535-8] 521-6] 499-4] 474-8] 458-1 -1| 432-2] 428-9) 431-9 574-3 | 555-2) 538- 517-7| 494-9 | 471-0} 444.8 -6| 420-0} 424-4] 428-0 Jan. Feb. | March.| April. 0-00 0-00 0°00 | 0091 0097 | 0000 | 0076 0043 | 0075 | 0000 0034 | 0063 | 0053 9 | 0000 | 0205 0082 0085 | 0185 | 0094 0146 | 0282 | 0119 0212 | 0368 0125 0255 | 0409 0133 0303 | 0434 0130 0304 | 0427 | 0169 9 | 0301 | 0403 | 0213 26 | 0255 | 0349 | 0221 0225 | 0304 0267 0254 | 0341 | 0330 | 03 0320 | 0409 | 0387 | 0: 0400 | 0485 0399 | 0: 0500 | 0512 | 0415 2 | 0629 | 0548 | 0411 | 0: 0539 | 0581 | 0440 | 0304 | 0492 | 0559 0419 | 0: 0421 | 0492 | 0320 | 02 0323 | 0431 | 0133 0218 | 0351 0051 0180 | 0279 ee b KF OUNnNNIAUNFWNKH OWN VERTICAL COMPONENT OF MAGNETIC Forcg, 1845. 21 TABLE XXXVII.—List of Days in each Month of 1845 upon which the Vertical Component of Magnetic Force was least disturbed. 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. | May. | June. | July. Aug. Sept. Oct. Nov. Dec. Year. Mic. Diy. | Mic. Diy.| Mic. Div. | Mic. Dlv. | Mic. Div, | Mic. Diy. | Mic. Div. | Mic. Diy. | Mic. Div.| Mic. Div.| Mic. Div. || Mie. Div. 559-8 | 542-7| 526-2| 513-9| 496-6| 468-5 441-0| 421-0| 424-5| 428-8 558-3 | 543-6| 528-0| 514-6) 497-4] 468-4 -4| 439-9} 422.0| 424-3) 427-9 556-2| 545-1} 531-8} 516-8} 499-9] 470-2 5 | 444-8} 423-5 | 422-7| 426.0 556-8 | 544-8| 533-3) 519-5) 505-2} 472-0 ‘0 | 444-7 -1| 422-7} 425-0 557-2| 545-0| 533-3) 523-5| 510-6] 476-2 *2| 446-9 -2| 422-0} 424.0) 557-5 | 545-7| 534-5 | 525-5) 514-6) 478-1 -1| 447-3 *5 | 422-3 | 423-7 556-6 | 546-3] 536-9] 525-6] 517-8| 479-9 -7| 451-0 +2} 422-1] 425-0 557-1 | 548-0] 542-1] 526-8] 517-6| 477-6 -1| 457-5 *8| 423-6] 425-4 557-8| 550-5| 545-1 | 522-3) 517-0| 477-5 "0 | 459-3 -0| 427-3 | 427-0 557-9| 550-0} 543-9} 518-3} 510-3 | 473-3 +2| 458-7 -6| 428-0} 428-1 559-4| 448-5] 541-5} 512-2) 501-9) 473-0 +3 | 456-7 ‘6| 428-3 | 428-1 559-1} 544-0| 534-1] 507-3) 491-7] 466-3 -2| 454-0 -4| 431-3| 430-1 560-4| 540-8| 527-6| 503-9) 488-7 | 462-5 “6 | 449-1 *9| 435-2| 432-4 561-7} 542-1| 529-8) 509-4] 491-3 | 463-2 +3 | 454-8 9] 437-5 | 434-3 545.7 | 535-2| 515-7 | 494-9 | 466-3 ‘8 | 464.8 -0| 440-7 | 439.3 551-8] 538-7 | 522-6| 498-9) 473-6 ‘8 | 470-1 -5 | 442-0| 442.9 556-0} 540-3 | 526-8} 504-6| 480-0 ‘5 | 469-7 ‘9| 441-7) 441-6 555-9| 541-1| 529-6] 506-4| 483-4 -2| 464-8 -4| 439-9 553-8 | 542-2| 529-3) 507-7| 484-3 ‘7 | 459-5 ‘7| 438-1 551-6} 542-9 | 526-2} 506-5 | 482-8 ‘7| 454-9 2) 4363 551-8| 540-1| 523-6] 505-5 | 480-4 -5 | 453-6 *2| 435-2 548-1] 537-3| 518-8| 502-0| 476-1 -4| 452-3 -4| 432-3 545-7 | 533-0 | 515-5 | 498-4 | 472.8 +3| 445-9 -1| 430-8 543-1] 528-3) 513-4| 495-8 | 468-7 +7 | 439-7 -1| 428-3 ae KODOONAURWNHHE OS — MAG. AND MET. oss, 1845 anp 1846. F Ww 2 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. 3d. 4th. 000 O00 0128 | 0198 0077 | 0181 0064 | 0117 0028 | 0161 0005 | 0162 0000 | 0163 0012| 0176 0042 | 0099 0076 | 0060 0126 | 0000 0152) 0148 0175 | 0228 0255 | 0271 | 0233 | 0293 0236 | 0290 0245 | 0320 0269 | 0298 0268 | 0212 0244 | 0226 0219 | 0240 0229 | 0233 0167 | 0242 (0176 | 0294 /0126 | 0254 0057 | 0225 0 1 2 3 4 5 6 7 8 9 6th. 0-00 0032 0036 0043 0068 0097 0105 0107 0114 0096 0099 0095 0078 0091 0100 0086 0086 0081 0079 0061 0050 0047 0046 0018 0000 0012 9th. 10th. 000 0048 0101 0162 0173 0109 0129 0178 0177 0177 0157 0243 0197 0166 0121 0120 0129 0122 0131 0147 0114 0093 0064 0054 0017 0000 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 XXXV. minus Table XX XVIII. Feb. | March, April. | May. June. July. Aug. Sept. Oct. Nov. Dec. Year. || Mie. Diy. | Mic. Div. | Mic. Div. Mie. Div. | Mic. Div. Mic. Div. —1-5 —1:5 — 2-0 —2:8 —3-0 — 3-2 — 3:3 —2-6 | —3-1 — 2-4 —1:5 —4 —2-1 — 1-6 — ae +1-7 +48 | +7.0 | +6-6 +59 +4:8 +3-1 | + 1-0 —0:9 Mic. Diy. tHE HEHEHE H+ 1 Mic. Div. Mie. Diy. =) — 18-4 — 18-3 —19-4 Mie. Div. —4.2 —7:3 —8-8 (a —5-0 —3-2 —0-9 +0-4 +2-5 +1-9 +0:7 Mie. Diy. -17 — 2-3 —4-6 —3-9 — 2-4 — 2-0 —1-9 —1-6 =—1-9 —1:5 —2.7 —2-4 — 2-3 -1-7 +0:-2 +35 Mic. Div. Mic. Div. 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. Civil Day. 29-7 WOOTMH A PwWNwe V sommes f = ra — Feb. March. April May. June July Aug. Sept. Oct. Nov. Dec. Mic. Diy. | Mic. Diy. | Mic. Div. | Mic. Div. | Mic. Div. | Mie. Dlv. | Mic. Div. | Mic. Div. | Mic. Diy. | Mic. Diy. | Mie. Diy. 14.4 15-2 12-9 65-6 [14-8] 20-4 23-7 14-7 18-3 14-6 8-3 [19-0] | [12-2] 8-7 13-8 71 17-1 31-0 30-2 5-6 [19-4] 4:8 17-2 13-8 15-7 11-4 8-9 11-0 [16-6] 40-2 16-7 8-4 91-9 11-7 13.4 13-1 [26-8] 23-2 14-3 13-2 30-8 8-5 22-8 41-4 37-8 13-5 16-9 23-3 14-1 14-2 11-2 21-7 [11-7] 47-5 38-8 21-6 14-5 [14-1] 22-7 4-6 [11-8] 79 30-9 21-3 24-8 | 26-1 11-7 14.2 10-3 24-0 6-7 10-9 6:3 [20-7] 11-8 11-2 | [25-1] 10-3 10-6 9-2 27-0 [10-2] 9-6 12-2 20-3 6-1 15-7 | 22-0 [11-2] [ 12-3] 19-6 13-6 16-2 10-6 12-9 9-8 14-9 [12-7] 14-2 5-5 8-6 10-6 10-8 12-3 12-8 [13-1] 10-7 29.4 6-2 8-4 i ' : 2 , 16-9 12-5 4 a A 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. Moon’s Mean Age. | Difference, Day. Mie. Diy. 15 13-3 16 14-5 17 15-8 18 15-4 19 14.9 20 14-6 21 20-2 22 14.7 23 16-0 24 18-3 25 20-0 26 15.4 27 17-9 Mean After Moon ||farthest North. D CHONIAMR WW OE After Mean Moon Difference. | farthest North. Mic. Div. Day. 12-5 14 17-5 15 14-2 16 25-7 17 15-4 18 16-1 19 14-3 20 16-7 21 18-7 22 19-3 23 21-2 24 17-5 25 26 Mie. Div. Mean Difference. 17-2 11-4 14-5 29-6 17-8 15-2 18-2 13-3 13-4 18-5 11-3 13.8 13-3 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. . | March. | April. 5 . . | Sept. | Oct. Nov. | Mic. Diy. .| Mie. Div. | Mic. Div. : -| Mic. Diy.| Mie. Diy.| Mic. Div.| Mic. Div. | Mic. Div. 25:3 . 23-4 | 49-4 : : : 18-8 8-1 13-1 23-3 : 30-1 | 36-1 . : . 25-7 | 18:3 | 14-1 36-3 : 44-2 : D . : 25-0 | 19-1 17-7 30-3 : : 25-9 . . “ : . 17-4 | 17-8 26-5 a 24. 31-5 . : . ° . . 16-5 21-8 . . 18-7 . . . 5 . . 16-3 19-7 18-3 18-1 17-0 14:5 11.2 11-4 11-8 12-7 14-9 14-9 15-1 16-8 17-1 16:5 15-5 24-2 26-7 SK COOMONAUBRWNKe SO i VARIATIONS OF MAGNETIC Dip. 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 Variations Moon’s of ~*| Moon’s of Moon of Moon of a of of Age. | Magnetic | Age. | Magnetic |/farthest| Magnetic |farthest| Magnetic Magnetic Magnetic Dip. Dip. North. Dip. Dip. Perigee.| Dip. | Dip. u D: 0-144 0-228 0-402 0-246 0-175 0-413 0-260 0-229 ~] S 3 =] S 2 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 0-215 0-219 0-219 0-313 0-318 0-295 0:337 0-254 0-171 0-451 0-259 0-189 0-228 0-091 0-000 0-103 0-028 2 0-110 0-018 0-092 0-052 0-104 CoOonNauwwne og OHNYRSHMR WWE Of 0-199 0-188 MIOURwWNE De NwRaUgs SOUkWNeEPenwakaaonr | | | 0-167 | VARIATIONS OF Macnetic Dip, 1845. 25 TABLE XLV.—Diurnal Variations of the Magnetic Dip in 1845, as deduced from Tables XXIII. and XXXVI. March, 0-310 0-807 | 0-493 0-373 | : 0-507 | 0-330 0-519 0-907 | 0-391 0-745 | 0-123 0-746 | 0-000 0-612} 0-103 1-032| 0-230 2-573 | 1-951] 0-463 3-154) 2-520) 1-234 3-491 | 2-950} 1-909 3-402 | 3-213] 2-044 2-890 | 2-515} 1-951 2-031} 1-813} 1-632 1-106 | 1-111] 0-942 0-968 | 1-003 | 0-819 0-352 | 0-788} 0-591 0-252 | 0-610) 0-635 0-318} 0-211} 0-470} 0-520 0-000 | 0-259 | 0-000} 0-259 0-306 | 0-000 | 0-155 | 0.212 0-352)| 0-323 | 0-602) 0-254 } 0-806 | 0-435) 0-306) 0.227 1-149 | 0-502) 0-512 0-457 1-099 | 0-404} 0-356 0-419 MAG. AND MET. oBs. 1845 anp 1846. G 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. Moon’s LUNATIONS. Moon’s | LUNATIONS. Hour- Hour- = = Angle. Angle. | Summer. | Winter. Summer. | Winter. Winter. | 0-146 0-218 D : 0-234 ) 0-052 0-081 0-086 . C 0-203 0-035 0-066 0-000 E D 0-157 0-094 0-000 0-023 . B 0-128 | 0-118 0-119 0-212 . . 0-113 : p . 0-181 0-115 0-195 D D 0-157 . 0-108 0-159 0-173 : : 0-073 0-166 0-228 0-130 : : 0-118 . 0-217 ‘ 4 || 0-161 | NOoupwnwore 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 Before | Variations| Before Moon’s | of Moon’s Moon Moon and Total | Age. farthest farthest after Force. . North. . | North. rce, || Perigee. Da i=} 5 S Ey 0-00 0038 0055 i] 5 3 WOIAMAwWWH OS WCHOTIAAHRwWNH OE NOUR WNeEDeNwhUan NOUR WHE PRE NWhKUADS VARIATIONS OF ToTAL MAGNETIC Force, 1845. 27 TABLE XLVIII.—Diurnal Variations of the Total Magnetic Force in 1845, as deduced from Tables XXIII. and XXXVI. April. | May. 0:00 0-00 0070 | 0177 0114 | 0081 0000 | 0073 0248 | 0053 0211 | 0182 | 0323 | 0233 | 0387 | 0263 | 0220 0127 0050 0007 0000 | 0059 0190 0293 0440 0543 0618 0634 0571 0498 0413 0347 0294 RPCOONODURWNeH © — TABLE XLIX.—Variations of the Total Magnetic Force with reference to the Moon’s Hour-Angle for 1845, as deduced from Tables XXVI. and XX XIX. LUNATIONS. LuNATIONS. LUNATIONS. Summer. | Winter. Winter. Winter. 0-00 0:00 ; 0-00 b 9:00 0062 0053 0016 0098 0081 0076 0008 0095 0076 0088 | 0012 0089 — 0087 0065 0064 0061 0073 0010 | 0084 0041 0069 0000 | 0079 0030 0061 0016 | 0095 0031 0044 0025 0090 0010 ; | 0025 IOouhwnNor oF 28 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845. TABLE L.—Ranges for each Civil Day of the Magnetic Declination, and of the Horizontal and Ver- tical Components of Magnetie Force, as deduced from all the Observations (Hourly, Term-Day, or Extra) made in 1845. | Decli- | Hor. | Vert. || Decli- | Hor. | Vert. || Decli- | Hor. | Vert. || Decli- | Hor. | Vert. || Decli- Decli- Day. |, nation.| Comp. | Comp. || nation.| Comp. | Comp. | nation.) Comp. | Comp. || nation.| Comp. | Comp. |/ nation. | Comp. | Comp. || nation.] Comp. | Comp. } z, 0-0 Oo 7 00 0-0 f 0-0 oo le 00 00 é OO 0 o 00 | | JANUARY. MARCH. May. JULY. | SEPTEMBER. NovEMBER, 1 ||} 16-11 | 0322 | 0044 || 14-63 | 0251 0074 | 21-21 | 0602 | 0418 || 14-43 | 0435 | 0107 || 15-44 | 0476 | 0097 || 19:92] 0561 | 0109 2 10°65 | 0151 | 0024 AS nen ae 9°53 | 0252 | 0019 8:70 | 0472 | 0040 | 26:46 | 0763 | 0083 ats nae aes “ 3 3°81 | 0081 | 0009 | 14:07 | 0451 | 0025 || 12:17 | 0358 | 0022 || 10-87 | 0354 | 0043 || 22:94 | 0487 | 0182 || 12°56| 0225 | 0071 | 4 4:55 | 0073 | 0016 7-24 | 0199 | 0018 dais Ace oa 14:59 | 0358 | 0032 || 15:20 | 0889 | 0085 || 13°46} 0248 | 0066 4} 5 ei5c a |e 6:58 | 0172 | 0025 9°93 | 0409 | 0028 || 9°87 | 0323 | 0042 || 16-34 | 0407 | 0077 || 34:39) 0417 | 0214 6 2°62 | 0095 | 0018 7°40 | 0193 | 0013 || 13:19 | 0400 | 0026 oe nan ate 13°65 | 0416 | 0043 4-87 | 0200 | 0046 7 7:73 | 0225 | 0029 || 11:36 | 0227 | 0043 || 14:14 | 0448 | 0030 || 15-06 | 6269 | 0081 =F se nae 16°45 | 0358 | 0079 8 | 5°35 | 0088 | 0015 9:06 | 0269 | 0031 || 12°36 | 0412 | 0035 || 14-76 | 0582 | 0098 || 20°75 | 0540 | 0110 7°18} 0161 | 0032 9 || 64:96 | 2622 | 0570 ate mee aed 14°56 | 0447 | 0029 || 14-53 | 0368 | 0066 || 11-06 | 0468 | 0064 ce vee a 10 | 32:09 | 2321 | 0133 || 12-20 | 0505 | 0055 || 11-17 | 0405 | 0030 || 14-69 | 0421 | 0061 || 10-21 | 0351 | 0050 || 18-24] 0175 | 0022 ll 9°86 | 0193 | 0043 || 14-30 | 0235 | 0026 Jas ee aoe 13°86 | 0451 | 0036 || 16-42 | 0347 | 0045 9°87 | 0210 | 0059 ESTE eee ee =o 7°48 | 0172 | 0022 || 14-41 | 0339 | 0045 9°38 | 0398 | 0046 | 13-36 | 0399 | 0094 7-11} 0171 | 0024 } 13 10°21 | 0295 | 0041 || 12-24 | 0244 | 0036 || 12:71 | 0427 | 0043 ie ree ea 14:90 | 0423 | 0052 4:15 | 0153 | 0018 14 | 10°56 | 0263 | 0037 || 20-99 | 0480 | 0072 || 14:14 | 0469 | 0100 | 12:52 | 0477 | 0027 ane se aoe 5:06) 0154 | 0618 f 15 || 16-28 | 0449 | 0033 || 17-61 | 0351 | 0067 || 17-26 | 0543 | 0124 | 13-60 | 0361 | 0024 7-58 | 0319 | 0037 4-63) 0161 | 0017 16 || 5:95 | 0126 | 0033 ote died nee 18:44 | 0799 | 0082 || 12:15 | 0311 | 0041 || 13-89 | 0319 | 0023 ace wee aoe 17 11°53 | 0273 | 0027 || 16-96 | 0587 | 0092 || 11-20 | 0609 | 0045 || 15-17 | 0877 | 0027 || 35:27 | 0682 | 0107 || 30-61] 0692 | 0169 | 18 | 6-92 | 0218 | 0014 | 16°66 | 9447 | 0069 dee ie sia 13:99 | 0364 | 0025 || 28:90 | 1182 | 0245 || 21:85) 0351 | 0070 iC) eee tee ae 18:50 | 0414 | 0122 || 27°30 | 0885 | 0253 || 16°15 | 0392 | 0038 || 20-72 | 0419 | 0102 || 12:30) 0217 | 0043 20 | 42:00 | 1715 | 0479 || 23-48 | 0792 | 0382 || 15-76 | 0475 | 0035 20°39 | 0545 | 0040 6°82} 0141 | 0028 | 21 | 21-50 | 0297 | 0049 || 17-65 | 0581 | 0100 || 12-91 | 0441 | oo6e |/11-03 | 0493 | 0029 || ... | ... | .. 22 || 20-96 | 0819 | 0036 || 14-80 | 0322 | oog4 || 18-07 | 0493 | ooss ||13-05 | 0434 | 0049 | 10-71 | 0308 | 0098 || 12-94| 0368 | 0028 23 | 20-40 | 0493 | 0066 ae soa «.. || 12-44 | 0386 | 0045 || 15-48 | 0462 | 0028 || 9:08 | 0364 | 0040 ate eT ar, 24 | 21°38 | 0813 | 0181 || 31:15 | 0973 | 0343 || 14°38 | 0573 | 0038 || 15-17 | 0552 | 0097 | 22°95 | 0496 | 0038 || 15:14] 0381 | 0027 25 | 30°14 | 0785 | 0121 || 27-75 | 0715 | 0269 oe oa ... || 85°64 | 0788 | 0239 || 35°05 | 1002 | 0461 8-44) 0210 | 0015 26 || ... une --. || 25°63 | 0568 | 0137 || 819 | 0312 | 0020 || 11:00 | 0344 | 0030 || 11:74 | 0368 | 0090 7°36 | 0316 | 0042 27 | 18:34 | 0479 | 0092 || 26-67 | 0934 | 0176 || 9-01 | 0337 | 0033 ree sae ... || 34:57 | 0668 | 0185 9:91] 0139 | 0021 J 28 | 26°70 | 0664 | 0135 || 24-24 | 0326 | 0042 || 9-38 | 0321 | 0027 || 9-06 | 0389 | 0050 10°19} 0571 | 0050 29 |) 29:95 | 0994 | 0198 || 20-94 | 0384 | 0082 || 10:87 | 0314 | 0036 || 10-90 | 0337 | 0029 || 11-12 | 0266 | 0058 || 16:11) 0392 | 06a | 30 || 24-67 | 0532 ae aewee ele 0585 | 0053 || 11-23 | 0329 | 0044 || 14-60 | 0256 | oo62 | ... | .. | we 31 | 558 | 0231 | 0043 || 10-02 | 0311 | 0024 | 34-27 | 0739 | 0112 ||13-55 | 0419 | 0046 — So ior] or i a oO © FEBRUARY. APRIL. JUNE. AvuGUST. OcToBER. DECEMBER. 1 || 9°55 | 0228 | 0024 || 10°34 | 0336 | 0021 ns “53 ... || 34:40 | 1142 | 0173 || 13-52 | 0281 | 0043 5-18 | 0148 | 0022 7 CN Bee aoe «+» || 12:99 | 0290 | 0034 || 10°76 | 0242 | 0031 || 19°93 | 0396 | 0122 || 8-50 | 0328 | 0061 | 12°13) 0249 | 3 || 7-73 | 0183 | 0015 | 17-24 | 0426 | 0069 || 10-76 | 0351 | 0041 ae =A ... || 1645 | 0309 | 0055 ||125°61| 4090 | 0543 7 © 4 |/11-70 | 0164 | 0027 | 14-23 | 0417 | 0024 ||17-66 | 0407 | 0083 || 16-95 | 0745 | 0109 | 8-39 | 0336 | 0079 || 25°12) 1275 5 | 16-35 | 0315 | 0224 | 13-94 | 0431 | 0033 || 13-22 | 0438 | 0052 || 10-97 | 0448 | 0064 coe 253 oct 10:51 | 0262 6 || 21:69 | 0370 | 0036 i, lia a 13-37 | 0384 | 0031 || 13-03 | 0445 | 0052 || 11-62 | 0445 | 0057 8:80 | 0221 7 || 13-11 | 0200 | 0035 || 13-89 | 0473 | 0025 || 16:46 | 0427 | 0047 || 11-42 | 0340 | 0050 || 10-59 | 0312 | 0028 ae et 8 5°69 | 0136 | 0021 | 13:18 | 0386 | 0044 5 = ..- || 21°60 | 0508 | 0108 || 9:49 | 0316 | 0043 6°86 | 0146 9 |. a ... | 18:97 | 0472 | 0054 || 19°31 | 0526 | 0068 || 18-97 | 0427 | 0107 || 32:16 | 1650 | 0215 3°79 | 0123 10 | 13°33 | 0217 | 0035 || 12:34 | 0307 | 0034 || 15-76 | 0514 | 0082 eae since +.» || 27°83 | 0693 | 0197 6°95 | 0150 11 || 10°15 | 0189 | 0028 || 14-95 | 0344 | 0024 || 11-16 | 0385 | 0061 || 11-63 | 0370 | 0042 || 9-21 | 0308 | 0052 5-28 | 0130 | 0018 f 12 || 6-05 | 0241 | 0023 | 15-35 | 0347 | 0019 || 14:03 | 0454 | 0043 | 11-44 | 0353 | 0020 coe 5 nat 6-67 | 0231 13 || 836 | 0325 | 0049 | ... ans “25 12:28 | 0340 | 0059 | 13:03 | 0374 | 0040 || 6-31 | 0265 | 0028 || 33-62] 0514 14 | 5:00 | 0127 | 0016 || 67-37 | 4200 | 0697 || 15-86 | 0367 | 0045 | 9:37 | 0392 | 0026 | 6-58 | 0207 | 0026 3F 3 ea 15 326 | 0105 | 0012 || 15-11 | 0398 | 0077 ex ee ... | 19:75 | 0825 | 0104 || 14-61 | 0209 | 0030 || 30-62| 0508 1 Waco Bes Abs 9:77 | 0297 | 0048 || 12-83 | 0316 | 0042 || 15:49 | 0521 | 0044 || 9-22 | 0311 | 0033 |) 18-64] 0363 17 |, 10°73 | 0214 | 0039 || 10-10 | 0351 | 0036 || 9:24 | 0374 | 0030 || ... “ae ... || 20°70 | 0378 | 0066 861 | 0230 18 5:54 | 0118 | 0010 || 19:57 | 0413 | 0090 || 11-14 | 0414 | 0046 || 22-60 | 0575 | 0132 | 13-16 | 0328 | 0016 || 15°59] 0300 19 5°67 | 0167 | 0017 || 17-59 | 0729 | 0133 || 15-14 | 0405 | 0032 13-36 | 0503 | 0026 | ... see se 3-50| 0101 20 | 31-51 | 0413 | 0055 a che ... |]15-21 | 0473 | 0035 | 12:65 | 0519 | 0024 || 22-61 | 0430 | 0068 8-21] 0115 21 | 26°84 | 0360 | 0103 || 13-44 | 0540 | 0131 || 18-42 | 0444 | 0023 | 14°78 | 0475 | 0026 || 52-34 | 0710 | 0142 252 wx . 22 | 20:00 | 0452 | 0127 || 12-63 | 0416 | 0047 ees acts ... | 15:71 | 0402 | 0033 || 15°63 | 0535 | 0186 5-49| 0143 | 0006 23 || | 15-47 | 0424 | 0030 | 13:39 | 0438 | 0038 | 19:09 | 0337 | 0042 || 7-02 | 0251 | 0026 6-73 | 0153 | 0021 = oe va o 24 | 35-10 | 0734 | 0184 || 16-61 | 0669 | 0074 0431 | 0039 ||... | ... | ... ||1169 | 0282 | 0047 || 7-54| 0132 | 0024 25 | 2413 | 0305 | 0180 | 18-38 | 0619 | 0107 || 10-17 | 0266 | 0031 | 1615 | 0360 | 0066 || 13-26 | 0335 | 0085 || 4°51| 0164 | 0034 26 | 21:72 | 0526 | 0204 || 14-90 | 0571 | 0034 || 11-92 | 0428 | 0040 || 16-77 | 0444 | 0094 se “6c ae 5-01| 0119 | 0021 27 =| 3212 | 0364 | 0081 13-86 | 0349 | 0038 || 11:91 | 0308 | 0025 || 8-20 | 0158 | 0022 6:39 | 0230 | 0033 28 | 22-00 | o269 | 0102 || 27-56 | 1240 | 0377 | 18-28 | 0473 | 0060 | 12-41 | 0374 | 0034 | 11-27 | 0147 | 0024 29 14:39 | 0384 | 0051 53-05 | 1145 | 0288 || 8-23 | 0146 | 0037 4:07 | 0172 | 0024 30 | 16-90 | 0480 | 0090 | 11-29 | 0490 | 0063 || 26-16 | 0974 | 0280 || 7-70 | 0182 | 0017 || 16-99] 0370 | 0078 | ve NE a ie 0347 | 0033 || 12-76) 0148 Maenetic DEcLINATION, 1846. TABLE LI.—Mean Westerly Declination for each Civil Week-Day and Week in 1846. CONRAURWHOe 2) 9 AD) Geko) ee) el D to ~ or i) x lor) or rt lor) ve} w 4 29 8-32 [7-21] | 6-95 30 7-79 7-01 6-17 31 8-36 7-11 6-60 7:39 6:37 3-05 5-24 3-09 5-32 6-42 7-33 | [4:36] | 4-80 3-65 [6-37] | 7-04 9-02 4-04 4.95 7-44 7-63 6-57 7-30 4-35 9-18 | [4-42] 7-00 6-98 | [6-95] | 4-50 8-07 4-60 5:52 5-83 6-68 5-02 | [6-72] | 3-73 4-88 | [6-10] |] 6-08 8-51 4-67 4-00 5-07 6-25 5-32 7-32 8-11 5-25 5-03 4:93 5-57 | [6:35] | 5-34 5-59 [5-34] | 6-04 6:46 6-69 5-56 8-47 6-43 5-61 6-46 6-19 6-67 | [5:60] 4-70 5-57 | [6-05] | 4-39 6-40 5-62 5-93 6-58 6-71 7-64 | [6-35] | 4:17 5-20 | [5-92] ] 4.07 6-36 6-76 4-50 6-53 2-98 7-02 5-19 7-51 3-98 5-41 7-41 4.99 | [6-01] | 5.22 4-22 [5-96] 7:37 6-01 7-60 6:21 3-71 5-81 5-15 6-29 | 5-07 | 5-51 | [4-25] 7-57 7-61 | [5-58] | 4-23 5-71 4.36 5-22 6-40 4.37 4-61 | [4.64] | 5-22 6-24 [6-39] 5.84 5:77 2.60 3-99 5-77 8-65 6-01 8.74 1-29 3-80 7-75 4-95 7-97 | [6-03] | 6-54 4-64 [6-37] | 5-58 5.25 5-31 3-24 2-93 6:07 5-88 3-68 5-82 4.90 | [4-03] 6-81 5-58 [5-98] 5-93 5-56 4.49 5-61 4-74 6-39 4-59 | [4.02] | 4-15 5-82 | [5-70] | 5-40 | 5-58 | 3-95 | 4-15 5-91 5-27 | 7.21 5-02 3-37 | 4:37 6-76 6-35 5-15 | [4-97] | 3-08 4.74 [6-56] 5-09 4-60 3-72 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 MAG. AND MET. oss. 1845 anp 1846. Variations of West Declina- After Moon |farthest North. Variations of West Declina- tion. After Moon farthest North, Variations of West Declina- tion. D WOIB AA woe og 1:19 0-78 0-70 0-74 0-28 0-36 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. as Jan Feb. March. | April May. June. July. Aug. Sept Oct. Nov Dee 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 7-01 4-65 7-21 | 32-41 8-78 | 12:79 | 18-86 | 21-03 | [15-85]| 16-42 5:37 [9-44] 7 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 8-01 [6-45]| (7-69]} 15-80 | 13-37 | 17-81 | 13-54 | 13-44 | 17-78 | 31-31 | [11-57] 4-60 9 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 18 [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 5-95 | 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 sil) 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 Moon’s Age. || Mean Range. Moon’s Age. OOWHKPwwR oe _ _ After Moon farthest North. Age and Declination, for 1846. After Moon farthest D. WHIA MAR WW Of — wre MAGNETIC DECLINATION, 1846. 31 TABLE LV.—Means of Westerly Declination at the Observation Hours, for each Month in 1846. Mean Time. Gott. h. 18 20 22 i) w onan DF HO —& OS _ Mak. h. 17 19 21 22 23 March. 5:36 5-10 5-12 8-04 11-58 14-10 15-66 11-47 7-65 6-45 5:58 5:36 32 RESULTS OF MAKERSTOUN OBSERVATIONS, 1846. TABLE LVII—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 in 1846. March. April. June. 0-00 [6222] 6103 6253 6611 6634 6454 6704 [6670] 6350 6954 6925 6638 6243 5395 [5979] 6168 5591 5841 5975 6176 6139 [6335] 6455 6512 6752 6847 6584 6177 [6468] 6300 6414 CO Hwbp wwe 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 0-00 6092 5671 6007 6011 6158 6686 [6325] 6054 6867 6172 5903 6926 7376 [6713] 7214 6137 6720 6365 6287 5818 [6620] 7076 7014 7160 7034 6867 7156 [7038] 7060 6997 Sept. Oct. 0-00 0:00 6791 | 6449 6859 | 5480 6637 | 6594 5592 | [6174] 7655 | 6397 [6341] | 6206 5650 6626 5888 5991 7015 5746 [6006] 6142 5085 6058 6388 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. Moon’s| of Hori- zontal Variations Component. Variations | After of Hori- Moon zontal farthest Component. || North. 0-00 0352 0281 0067 0311 0260 0137 0311 0000 0279 0455 0232 0368 0348 0736 0552 iw] 5 1 CHNAMAWHE OE 0-00 D. 0329 0478 0229 0388 0495 0415 0424 0414 0484 0166 0113 0317 0189 0397 0351 OHOTWAAUARWNH OE 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. Day. Variations of Hori- zontal Component. Maenetic 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. Be. Jan. | Feb. | March. | April. | May. | June. | July. 0-0 0-0 0:0 0-0 0-0 0-0 0-0 1 | 0124 | [0196] | [0248]| 0417 | 0408 | 0513 | 0648 2 || 0097 | 0234 | 0289 | 0382 | 0505 | 0713 | 0728 3 || 0121 | 0174 | 0239 | 0273 | [0621]] 0617 | 0549 4 || [0145]| 0151 | 0347 | 0344 | 1200 | 0572 | 0703 5 || 0132 | 0128 | 0215 | [0695]| 0666 | 0454 | [0670] 6 || 0138 | 0161 | 0200 | 2083 | 0539 | 0535 | 0968 7 || 0258 | 0157 | 0147 | 0606 | 0562 | [0613]] 0552 8 || 1281 | [0165}| [0177]| 0483 | 0337 | 0374 | 0521 9 || 0123 | 0269 | 0208 | 0424 | 048: | 0998 | 0609 10 | 0171 | 0202 | 0084 | 0576 | [0848]|} 0748 | 0676 11 | [0215]} 0073 | 0207 | 0617 | 0536 | 0564 | 0968 12 || 0279 | 0288 | 0250 | [0512]| 2045 | 0514 | [0748] 13 | 0130 | 0142 | 0529 | 0601 | 1125 | 0522 | 0949 14 | 0308 | 0401 | 0455 | 0421 | 0740 | [0681]| 0756 15 || 0090 | [0277}| [0444]| 0433 | 0652 | 1026 | 0528 16 | 0153 | 0439 | 0223 | 1161 | 0567 | 0764 | 0628 17 || 0228 | 0177 | 0435 | 0634 | [0664]| 0694 | 0693 18 | [0179]| 0217 | 0770 | 0435 | 0506 | 0450 | 0579 19 | 0252 | 0155 | 0377 | [0627]| 0668 | 0362 | [0619] 20 | 0121 | 0170 | 0389 | 0448 | 0852 | 0390 | 0624 21 || 0228 | 0117 | 0266 | 0363 | 0732 | [0430]] 0472 22 || 0186 | [0183]| [0367]) 0720 | 0668 | 0425 | 0718 23 || 0265 | 0069 | 0382 | 0429 | 08is | 0460 | 0499 24 || 0636 | 0096 | 0398 | 0601 | [0609}| 0495 | 0841 25 || [0252]} 0491 | 0390 | 0495 | 0593 | 0702 | 0641 26 || 0105 | 0232 | 0563 | [0482]} 0425 | 0493 | [0674] 27 || 0159 | 0201 | 0437 | 0470 | 0417 | 0526 | 0520 28 0163 | 0178 | 0498 | 0479 | 0377 | [0627]| 0470 29 0256 [0461] | 0420 | 0436 | 0733 1073 30 || 0162 0466 | 0410 | 0594 | 0659 | 0680 31 0202 0387 [0542] 0787 Aug. Sept. Oct. Noy Dec 0-0 00 0-0 0-0 0-0 0836 0381 0405 | [0290]| 0356 [0649] | 0346 0400 0263 0552 0648 0351 0452 0339 0148 0560 0344 | [0365] | 0229 0247 0383 1636 0223 0239 0161 0666 | [0688]} 0232 0250 | [0165] 1160 0324 0481 0522 0121 1073 0902 1474 | [0297]| 0146 [0808] | 0572 0477 0235 0167 0652 0402 0591 0328 0180 0587 0861 | [0611 0207 0186 0709 0698 0448] | 0254 0171 0832 | [0597]| 0397 0239 | [0220] 0541 0582 0279 0279 0383 0775 0663 0227 | [0525]| 0182 [0680]} 0378 0328 0169 0217 0945 0431 0300 1775 0162 0460 0347 | [0301]| 0433 0177 0528 0309 0278 0283 0130 0428 | [0725]| 0246 0271 | [0163] 0553 0448 0427 0201 0072 0501 2407 0470 | [0221]| 0105 [0559] | 0408 0417 0204 0335 0601 0587 0348 0190 0143 0640 0524 | [0348]| 0175 0304 0630 0466 0255 0834 0121 0765 | [0462]) 0310 0256 | [0211] 0664 0647 0286 0535 0212 0984 0294 0282 | [0469]| 0263 [0593] | 0256 0328 0282 0224 0428 0297 0065 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. MAG. AND MET. oBs. 1845 anp 1846. D After Moon farthest North. WOHWAMAR WW OF After Moon farthest North. 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. April. | May. June. | July. ' Sept. ' Nov. Gott. | Mak. h. h. Se. Div. | Se. Div. Se. Div. | Sc. Div. Se. Div. Se. Diy. Se. Div. | Se. Diy. 18 17 || 549-57) 547-45 548-68 | 543-22 543-74 543-94 555-58 | 559-39 20 547-59) 547-46) 546-10) 540.26 538-65 536-75 553-46) 558-43 544-23 | 543-83 533-86 | 532-03 532-08 528-20 545-74) 555-66 542-24 | 543-07 531-72) 529-75 532-12 531-94 543-22) 552.56 541-96) 543-71 531-36 | 534-27 536-36 534-15 544-82) 553-94 542-37 | 545-36 535-38) 539-37 542-78 542-78 547-45) 554-58 546-14) 546-70 543-19] 549-74 547-38 550-50 550-60) 557-17) 546-96 549-18 553-04) 559-91 564-58 559-57 554-28) 558-95 548-77 | 549-64| 559-72 570-52 573-19 560-99 559-36) 560-30 547-17 | 548-87 561-72) 565-29 570-56 553-76 560-94 | 560-70 548-96) 550-15 556-87 | 566-47 566-62 552-96 958-50) 560-53 547-27 | 547-06 550-87 | 551-26 557-42 542-90 553-95 | 556-96 TABLE LXII.—Diurnal Variations of the Horizontal Component of Magnetic Force for each Month in 1846. May. | June. oy VERTICAL COMPONENT OF MacGnetic 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. Civil Jan. Feb. March, | April. May. 0-00 0-00 0:00 0:00 1 || 4066 | [3793] | [3657] | 3451 2 || 4128 | 3915 | 3655 | 3364 3 || 4145 | 3814 | 3683 | 3373 4 || [4060] | 3882 | 3579 | 3713 5 || 4084 | 3872 | 3624 | [3545] 6 || 4038 | 3942 | 3705 | 3603 7 || 3901 | 3906 | 3686 | 3593 g || 3813 | [3932] | [3672] | 3625 g | 3843 | 4073 | 3774 | 3605 10 || 3963 | 3952 | 3671 | 3696 11 || [3958] | 3849 | 3572 | 3312 12 || 4043 | 3731 | 3559 | [3498] 13 || 4117 | 3695 | 3928 | 3487 14 || 3971 | 3613 | 3788 | 3413 15 || 3947 | [3694] | [3740] | 3474 16 || 3961 | 3912 | 3602 | 3699 17 || 4069 | 3563 | 3793 | 3322 18 || [3973] | 3651 | 3768 | 3496 19 || 4021 | 3668 | 3792 | [3517] 20 || 3927 | 3647 | 3744 | 3457 21 || 3915 | 3671 | 3741 | 3516 22 || 3925 | [3549] | [3674] | 3613 23 || 3854 | 3415 | 3652 | 3598 24 || 3725 | 3378 | 3621 | 3537 25 || [3775] | 3515 | 3495 | 3383 26 | 3726 | 3831 | 3544 | [3559] 27 || 3675 | 3567 | 3597 | 3689 28 || 3748 | 3626 | 3554 | 3627 29 | 3678 [3541] | 3588 30 | 3749 3588 | 3504 0-00 3448 3433 [3494] 3594 3396 3592 3749 3611 3778 [3611] June. July. Aug: Sept. Oct. Nov. Dec 0-00 0-00 0:00 0-00 0-00 0-00 0-00 8637 | --ss0. 3677 | 3534 | 3310 | [2861] |] 2710 SAT) (|) -seene [3710] | 3453 3360 | 2895 | 2716 3825 3927 | 3659 | 3422 | 2980 | 2825 2691 4120 3497 | 3796 | 3489 | [3261] | 2723 | 2810 3952 | [3778] | 3731 4122 | 3349 | 2867 | 2723 3978 3956 | 3764 | [3799] | 3331 2806 | [2706] [4054] | 3827 | 3702 | 3638 | 3237 | 2878 2690 4079 3681 3740 | 4086 | 3394 | [2912]]| 2651 4062 3850 |[3818] |} 4038 | 3502 | 2963 2672 4131 3677 | 3880 | 3988 | 3431 2966 | 2717 4112 | 4285 3775 | 4165 | [3437] | 2991 2654 4040 | [3921] |] 4046 | 3648 | 3464 | 2741 2579 3959 4124 | 4084 | [3758] | 3482 | 2696 | [2646] [4059] | 3781 3442 | 3625 3351 2705 2589 4119 3807 | 3949 | 3543 | 3165 | [2879] | 2670 4090 3752 | [3724] | 3582 | 3069 | 2766 | 2666 4032 | 3944 | 3463 3516 | 3010 | 3457 2651 4146 | 4102 | 3640 | 3580 | [3148] | 2911 2617 3885 | [3839] | 3767 | 3817 | 3244 | 3071 2629 3900 3745 3655 | [3424] | 3172 | 3041 | [2651] [8957] | 3729 3646 | 3631 3227 | 2966 2643 3899 3763 | 3381 3003 3420 | [2901] | 2555 4008 3936 |[3584] | 2996 | 3073 | 2782 | 2809 3903 3915 | 3651 3288 | 3079 | 2737 | 2662 3890 | 3680 | 3612 | 3397 | [3124] | 2807 | 2688 3691 | [3855] | 3560 | 3526 | 3134 | 3233 2711 3784 3751 3468 | [3383] | 3120 | 3072 | [2580] [3796] | 3588 | 3537 | 3408 | 2919 | 2813 2633 3812 | 4258 | 3497 | 3353 2906 | [2885] | 2392 3801 3754 | [3501] | 3328 | 2979 | 2767 | 2396 31 3721 3515 [3634] 3644 | 3515 2841 2448 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 D 0028 0069 0006 0016 0004 0006 0059 0000 0044 0064 0040 0035 0084. 0036 0060 CONAN WOH OF After |Variations Moon of Ver- farthest | tical Com- North. | ponent. 0-00 0066 0086 0087 0144 0109 0071 0014 0043 0082 0169 0060 0073 0081 0071 After Moon farthest Variations of Ver- tical Com- ponent. 0-00 0111 0113 0055 0055 0000 0069 0179 0119 0083 0185 0125 0086 0169 0113 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. March. 0-00 | [0319] 0211 0285 0226 0281 0212 0220 [0208] 0276 0148 0110 0206 2472 1768 [1259] 1469 1067 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. ch (0 nnn 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 1207 0 0740 | 0 0874 14 0631 16 0948 1 0650 1 0860 15 0659 17 1132 2 1082 2 0583 16 0448 18 1502 3 0573 3 0542 17 0322 19 0753 4 0382 4 0505 18 0505 20 1177 5 0523 5 0917 19 0796 21 1268 6 O711 6 0685 20 1779 22 0850 7 0610 7 0711 21 0947 23 0658 8 1356 8 0817 22 0479 24 0703 9 0825 9 1043 23 0819 VERTICAL COMPONENT OF MAGNETIC Force, 1846. 37 TABLE LXVII.—Means of the Micrometer Readings of the Balance Magnetometer corrected ° for Temperature, at the Observation Hours, for each Month in 1846. Jan. Feb. | March.| April. | May. | June. | July. | Aug. | Sept. Oct. Noy. Dec. Year. Mic. Diy. | Mic. Div. | Mic. Diy. | Mic. Div. | Mic. Diy. | Mic. Div, | Mic. Diy. | Mic. Div. | Mic. Diy. | Mic. Diy.| Mic. Div.| Mic. Div. || Mic. Diy. 385-2| 369-6) 361-5| 333-1| 336-9| 373-8| 351-3] 335-9] 334.5 |. 273-8} 276-9| 257-3 || 332-5 386-4) 371-1} 365-2| 344-8 | 353-5] 391-2] 372-1| 356-6) 346-9] 307-1| 280-5] 258-3 || 344-5 388-1] 373-0} 369-0 | 354-3) 355-3 | 392-0| 378-3) 372-0] 353-2] 325-4] 289-4) 260-4 || 350-9 389-2| 372-7| 366-7 | 355-0| 353-2) 389-5| 374-1| 370-5| 361-7] 326-5| 288-7] 262-7 || 350-9 392-2! 374-5 | 364-4| 356-0} 351-2| 384-0] 367-4| 364-3] 365-7| 325-8| 287-3) 264-2|| 349-7 394-3 | 376-0| 366-0} 352-7) 351-9| 386-0| 368-0| 365-1| 373-8| 331-4| 288-9| 264-8 || 351-6 397-3] 375-8| 371-8| 356-7| 356-7| 388-0| 373.0| 371-0) 377-8) 338.2| 293-5| 266-3 |) 355-5 403-3 | 386-4) 392-1) 374-3) 384-4| 398-6 402-5, 396-7 | 407-5| 360-1 | 306-3| 273-6 || 373-8 401-5} 384-8| 397-5 | 388-1 | 397-2| 409-9| 428-9) 414-5| 406-7| 352-5| 306-5| 274-7 || 380.2 400-9| 383-3) 388-9) 391-9| 397-5 412.4 426-5 | 416-6 | 387-6| 349-7| 337-0| 272-8 || 380-4 | 399-3| 380-0) 383-0 | 387-8| 394-9 | 414-1 417-8 | 408-5 | 380-9| 336-8) 322.9| 275-0)| 375-1 | 396-5 | 375-9) 362-8 | 345-4 | 364-1 | 404-1 387-1 | 349-5 | 333-5 | 321-0) 286-7) 270-9 | 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, K 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 Moon’s of e of Moon of Moon Age. | Magnetic . | Magnetic |\farthest| Magnetic |farthest Dip. Dip. North. Dip. North. ’ 0-385 +272 467 -310 -186 +272 317 -266 239 591 621 -404 588 +322 +394 Day. 14 = 2 SCONNTR HAR HY DH OF _ _ TABLE LXX.—Diurnal Variations of Magnetic Dip for each Month in 1846, as deduced from Tables LXII. and LXVIII. March. | 0-000 0-290 | 0-780 1.070 | 1-141 | 1-105 | 0-607 | 0-554 | 0.282 | 0-500 | | 0.232 | 0-440 VARIATIONS OF ToTAL MAGNETIC Force, 1846. 39 TABLE LXXI.—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 Moon farthest North. Hoe S mr oDHMOTIA UF wW WH BK OE _ i) SOMTN ANP WwW HOH OF — w wo —_ wo noe _ > TABLE LXXII.—Diurnal Variations of Total Magnetic Force for each Month in 1846, as Variations of Total Force. 0-00 0036 0059 0069 0108 0094 0055 0005 0025 0051 0150 0010 0056 0029 0035 After | Variations Moon farthest North. Day. 14 15 16 17 18 19 20 21 22 23 24 25 26 27 deduced from Tables LXII. and LXVIII. 40 RESULTS OF MAKERSTOUN OBSERVATIONS, 1846. 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. Civil | Decli- | Hor. | Vert. |} Decli- | Hor. | Vert. || Decli- | Hor. | Vert. || Decli- | Hor. | Vert. || Decli- | Hor. | Vert. |} Decli- | Hor. | Vert. Day. || nation.| Comp. | Comp. || nation.| Comp. | Comp. || nation.| Comp. | Comp. || nation.| Comp. | Comp. || nation. | Comp. | Comp. | nation.| Comp. | Comp. | ¢ 0-0 Oo; ie OO oo ts 0-0 0-0 i 0-0 00 ‘ 0-0 0-0 us 0-0 0-0 | : JANUARY. | MARCH. May. JULY. SEPTEMBER. NoveMBER. 1 | 8:95 | 0124 | 0009 A oe oe 9:86 | 0408 | 0022 || 13:99 | 0648 a: 13°50 | 0381 | 0061 ptr cep a5 ’ 2 3:50 | 0115 | 0019 || 10-35 | 0289 | 0021 || 12:03 | 0505 | 0076 || 25-19 | 0728 one 12:23) 0346 | 0014 || 18-10 | 0263 | 0099 3 || 7-91 | 0131 | 0018 9-11 | 0239 | 0028 ee = ane 10°20 | 0549 | 0165 || 10°55] 0351 | 0040 || 10-43 | 0339 | 0040 1 (No ane cy 15:57 | 0347 | 0023 || 38:92 | 1833 | 0424 || 16-13 | 0703 | 0287 || 29°50| 0980 | 0165 5°34 | 0229 | 0020 | 5 || 10°50 | 0139 | 0026 8-09 | 0215 | 0028 || 12:41 | 0666 | 0193 én ae ane, 43:02 | 1767 | 0622 || 10:37 | 0239 | 0039 6 || 7-85 | 0167 | 0025 | 7-21 | 0200 0021 8-78 | 0539 | 0116 || 25-02 | 1045 | 0146 ee =u ace 5°37 | 0250 | 0014 7 || 17-40 | 0269 | 0057 7°62 | 0147 | 0022 || 14-54 | 0562 | 0079 || 15-44 | 0552 | 0087 7°78 | 0324 | 0019 || 24:07 | 0598 | 0101 8 | 11:55 | 0281 | 0036 Sai aa a 13°37 | 0337 | 0082 || 14-42 | 0521 | 0117 || 24°76] 1015 | 0210 «se ous ari 9 5:97 | 0132 | 0029 || 6-82 | 0208 | 0028 || 16-20 | 0481 | 0118 || 12°75 | 0609 | 0032 || 11-29] 0572 | 0107 8°88 | 0235 | 0018 10 | 5-69 | 0171 | 0012 | 7-33 | 0084 | 0015 ne 290 ... || 11-98 | 0676 | 0052 || 12-72} 0402 | 0091 || 6:58 | 0328 | 0021 ase acs aes 9:06 | 0207 | 0011 || 11-86 | 0536 | 0031 || 32°70 | 1296 | 0291 || 58-41} 1095 | 0575 || 14-70 | 0207 | 0014 12 || 13:10 | 0279 | 0048 || 15-09 | 0250 | 0021 || 50-22 | 3485 | 0644 11:85 | 0698 | 0190 || 6:39 | 0254 | 0016 13 || 7-43 | 0130 | 0014 || 39-22 | 1565 | 0342 || 15-44 | 1125 | 0085 || 19-07 | 1014 | 0222 9-44 | 0239 | 0023 14 | 11:50 | 0308 | 0067 || 33-24 | 0849 | 0240 |} 11-13 | 0740 | 0096 || 14:91 | 0756 | 0045 || 14:97 | 0707 | 0175 || 10:70 | 0279 | 0038 15 || 4:99 | 0090 | 0015 || ... ans «+. || 1257 | 0652 | 0065 || 11:17 | 0528 | 0115 || 13-08| 0663 | 0093 as 58 ane 16 | 8°69 | 0153 | 0015 | 36-81 | 1301 | 0333 || 10°33 | 0567 | 0033 || 14-26 | 0628 | 0055 || 11:53} 0378 | 0025 || 7-05 | 0169 | 0017 17 (|| 19:29 | 0228 | 0061 || 32°88 | 0880 | 0344 ee Rar ose 8-21 | 0693 | 0062 || 13:34) 0431 | 0083 || 43°54 | 1775 | 0648 18 525 aes .-. |) 1880 | 0770 | 0057 || 11-61 | 0506 | 0044 || 17-32 | 0579 | 0113 || 14-72] 0347 | 0018 | 6:64 | 0483 | 0079 19 | 7-94 | 0252 | 0019 || 10:10 | 0377 | 0031 || 12:94 | 0668 | 0135 32°81 | 0364 | 0112 || 5-10 | 0283 | 0023 20 || 3-95 | 0121 | 0006 || 14-62 | 0389 | 0025 ||11-34 | og52 | ooso || 9-23 | o624 | 0031 || ... | ... | .... 14:39 | 0271 | 0043 | 21 | 5-95 | 0298 | 0013 | 12-07 | 0266 | 0038 ||16-46 | 0732 | 0076 || 7-34 | 0472 | 0054 || 40-10| 0728 | 0176 || 7-16 | 0201 | oo24 22 6°66 | 0186 | 0009 a nce ++» || 17°90 | 0668 | 0037 || 9:91 | 0718 | 0105 ||121:52| 4995 | 1178 aoe Gee en 23 || 4:60 | 0265 | 0012 | 10-39 | 0382 | 0025 || 17-32 | 1238 | 0127 || 13°79 | 0499 | 0082 || 16:05} 0408 | 0170 || 4-36 | 0204 | 0020 24 || 51-65 | 0672 | 0100 || 12:72 | 0398 | 0022 ave ate «+. || 15°30 | 0841 | 0115 || 20-01} 0587 | 0047 || 687 | 0190 | 0017 ae liopiex ne --- || 12°60 | 0390 | 0018 || 11:51 | 0593 | 0103 || 18-26 | 0641 | 0113 || 10:74] 0524 | 0040 || 4:80 | 0175 | 0028 26 5-20 | 0105 | 0015 || 21-45 | 0563 | 0048 || 15-79 | 0425 | 0048 8°82 | 0466 | 0048 || 44-90 | 1037 | 0705 27 || 11:48 | 0159 | 0012 || 20-42 | 0487 | 0040 || 12-54 | 0417 | 0042 || 13:16 | 0520 | 0080 sae on -.» || 15°38 | 0362 | 0080 J 28 || 10-01 | 0163 | 0051 || 14-14 | 0498 | 0044 || 13-36 | 0377 | 0064 || 14-16 | 0470 | 0059 || 19-48| 0647 | 0043 || 12:32 | 0535 | 0066 | 29 || 10:03 | 0256 | 0050 ni ate «+ || 16°79 | 0436 | 0030 || 22°67 | 1211 | 0347 8:14] 0294 | 0043 ae a oe 30 | 1346 | 0162 | 0019 || 17-73 | 0466 | 0054 || 19-55 | 0594 | 0095 || 21-09 | 0680 | 0041 || 15-08] 0271 | 0023 || 7-14 | 0282 | 0088 F 31 | 671 | 0202| 0018 || 14:80 | 0387 0017 15:92 | 0787 | 0132 || | FEBRUARY. APRIL. JUNE. AuGUST. OcTOBER. DECEMBER. ( Be aH Gee eee ... || 13:45 | 0417 | 0042 || 10-20 | 0513 | 0060 || 24:25 | 0836 | 0101 || 22°38| 0405 | 0083 || 13°35 | 0356 | 0027 | 2 || 12:06 | 0234 | 0039 || 12:31 | 0382 | 0025 || 37-82 | 1304 | 0238 one an ate 29:96] 0400 | 0161 || 8:08 | 0552 | 0024 | 3 || 565 | 0174 | 0022 || 15-86 | 0273 | 0046 || 12-17 | 0617 | 0080 | 9-67 | 0648 | 0070 || 8:86] 0452 | 0153 || 7-34 | 0148 | 0011 | 4 || 863 | 0151 | 0022 || 12-91 | 0344 | 0057 || 11-05 | 0572 | 0039 || 12:93 | 0560 | 0045 = oe ... || 11:48 | 0247 | 0089 5 || 437 | 0128 | 0013 nie bey -.. |] 12°65 | 0454 | 0052 || 12-84 | 6383 | 0030 7-98 | 0223 | 0046 || 4:38 | 0161 | 0015 ff 6 | 465 | 0161 | 0017 || 36:67 | 2355 | 0457 || 12-79 | 0535 | 0071 || 21-03 | 0666 | 0090 || 16-42| 0232 | 0050 ee of i 7 9°38 | 0157 | 0060 || 20:08 | 0625 | 0210 as aac ... || 5489 | 2078 | 0221 || 44°57] 0965 | 0237 || 3:40 | 0121 | 0009 HO ae es :.. || 15:80 | 0483 | 0099 || 17-81 | 0374 | 0017 || 15-14 | 1231 | 0220 || 41-42| 3197 | 1062 || 4-60 | 0146 | 0004 F 9 | 857 | 0269 | 0071 ||}13-:19 | 0424 | 0022 || 14-60 | 0998 | 0207 = ae aaa 13°63 | 0494 | 0101 || 25:43 | 0223 | 0048 f 10 || 7-47 | 0202 | 0027 || 11-09 | 0576 | 0090 || 13:75 | 0748 | 0108 || 12:64 | 0652 | 0171 || 16°38) 0591 | 0483 || 14-20 | 0180 | 0060 11 || 426 | 0073 | 0009 || 14-483 | 0617 | 0128 || 13-26 | 0564 | 0028 || 11-98 | 0587 | 0063 6:12 | 0186 | 0051 12 |/12-42 | 028s | 0025] ... | ... | ... ||13-24 | 0514 | 0033 |) 28-17 | 1021 | 0271 || 19-43] 0448 | 0089 || 8-36 | 0171 | 0025 13 || 3-93 | 0142 | 0016 }17-91 | 0601 | 0211 || 21-47 | 0522 | 0055 || 10-45 | 6832 | 0199 || 15-47| 0397 | 0069 14 || 10°25 | 0401 | 0018 | 28°64 | 0585 | 0076 oa ive ..» || 2469 | 0998 | 0340 8:34 | 0279 | 0026 || 3:90 | 0383 | 0023 | USA ANN ce vs | a. |] 21°13 | 0621 | 0052 || 18°88 | 1026 | 0134 | 17-96 | 0775 | 0192 6:60 | 0227 | 0027 || 5:18 | 0182 | 0019 f° 16 | 35°69 | 0444 | 0089 | 39:39 | 2157 | 0426 || 9-84 | 0764 | 0088 ee ae 26 8-38 | 0328 | 0069 || 3:50 | 0217 | 0012 F 17 || 10-54 0177 | 0026 | 27-70 | 1266 | 0314 || 12°66 | 0694 | 0039 || 23-14 | 1075 | 0187 9:48 | 0300 | 0017 || 4-92 | 0162 | 0011) 18 | 13:18 | 0217 | 0036 || 13-29 | 0435 | 0028 || 10-62 | 0450 | 0052 || 13-40 | 0460 | 0070 obi ie oe 9°76 | 0177 0023 | f 19 810 | 0155 | 0016 ]| ... oa8 +» || 14°93 | 0362 | 0059 || 10°57 | 0528 | 0093 8-73) 0278 | 0083 || 3:71 | 0130 | 0018 F 20 || 9:99 | 0170 | 0014 || 12:96 | 0448 | 0066 || 17-37 | 0390 | 0037 || 14-13 | 0428 | 0039 | 12-67| 0246 | 9068 ae pee wlll 21 | $19 | 0117 | 0019 | 11-92 | 0363 | 0021 eae eae ... || 14:54 | 0553 | 0057 || 10-37| 0427 | 0029 || 4:66 | 0072 | 0015 | 22 Ee noe ... |13°39 | 0720 | 0077 || 15-08 | 0425 | 0046 || 23-65 | 0644 | 0191 || 38-09| 0791 | 0136 || 5:25 | 0105 | 0014 F 23 || 361 | 0069 | 0009 || 13°80 | 0429 | 0019 || 21-09 | 0553 | 0188 9 ee aa 9°76 | 0417 | 0035 || 22:90 | 0763 | 0260 } 24 || 4:24 | 0096 | 0013 || 13-13 | 0601 | 0033 || 11-79 | 0495 | 0053 || 33-98 | 0640 | 0218 || 17-25| 0560 | 0034 || 12-27 | 0148 0078 | 25 | 22'41 | 0491 | 0083 || 10:22 | 0495 | 0086 || 11-36 | 0702 | 0023 || 18-82 | 1044 | 0095 ae ie oie 9-12 | 0304 | 0040 | 26 9:29 | 0240 | 0064 13-21 | 0493 | 0025 || 15-24 | 0630 | 0038 || 10-48} 0255 | 0011 | 8-51 | 0121 | 0047 J 27 | 14-76 | 0201 | 0025 ||12-08 | 0470 | 0045 || 14-59 | 0526 | 0059 | 48-51 | 1546 | 0454 || 9-78| 0310 | 0036 2g | 9-40 | 0178 | 0041 | 8:36 | 0479 | oo16 || ... | ... | ... | 40-54 | 1376 | 0340 || 9-02| 0286 | ovis | 10:87 | 0212 | 0027 | 29 | || 12:60 | 0420 | 0021 || 13:65 | 0733 | 0065 || 20-68 | 0984 | 0151 || 9-02| 0282 | 0026 || 9:52 | 0263 | 0017 30 | 12-63 | 0410 | 0032 | 17-68 | 0659 | 0079 ... | 12:07] 0828 | 0050 || 4:49 | 0224 | e019 31 11-73 | 0428 | 0029 || 12-01| 0297 | 0030 || 5-62 | 0065 | 0028 | TABLES OF RESULTS FROM THE METEOROLOGICAL OBSERVATIONS MADE AT THE OBSERVATORY OF GENERAL SIR T. M. BRISBANE, Bart., MAKERSTOUN. 1845 anp 1846. 4 MAG. AND MET. oBs. 1845 ann 1846, 42 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845. TABLE I.—Daily and Weekly Means of the Temperature of the Air, as deduced from the readings of the Dry Bulb Thermometer, for 1845. TEMPERATURE OF THE Arr, 1845. 43 TABLE IJ.—Hourly Means of the Temperature of the Air for each Month in 1845. March. mR OOCONOURWNE SO — TABLE IJI.—Hourly Means of the Temperature of the Air for each Astronomical Quarter, and for the year 1845. mOomosIaAnrWNeE OO — 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 Mean =a] and || of 24 175 10™ | 21> 40m | 21h 49m] 22h 10m | 22h 10m | 17h 10m) 21h 10m Year. Hours. and and and and and and and 4h 10™, | 102 10™,| 9h 40™, | 115 10™, | 104 10™, | 23" 10™.) 9h 10m, January 33-97 +0-23 | —0-37 | —0-47 | —0-02 | —0-02 . — 0-92 February 33-35 +0-65 | —0-48 | —0-45 : — 0-05 . — 0-85 March 35-07 —0-12 | —0-22 | —0-05 5 +0-18 o —0-27 April 44.23 +0-67 | —0-91 | —0-53 ‘ — 0:38 : — 0-68 May 46-45 + 0-20 0-00 - + 0-20 “ — 0-20 June 55-92 — 0-02 . +0-25 . +0-03 ‘02 | +0-48 July 54-00 . + 0-20 * — 0-08 . +0-05 . — 0-20 August 54-67 +0-03 . +0-13 : + 0-23 D + 0:03 September 49-81 —0-01 : +0-31 . + 0-69 . — 0-06 October || 48-28 — 0-28 . — 0-23 . +0-12 . — 0-58 November 42.02 . —0-17 ‘ — 0-25 . +0-13 . — 0-62 December 37-57 — 0-42 . —0-15 : +0-08 . — 0:37 Year | 44-61 40-08 | —0-28 | —0-13 | —0-10 | +0-10 The 12 Months. Mean of Errors 0-25 . 24 | 0-18 Range of Errors 1-09 . -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. March. | April. May. June. A Sept. - TEMPERATURE OF EVAPORATION, 1845. 45 TABLE VI.—Extremes of Temperature for each Month from the Register Thermometers ; 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. 5 Highest. Lowest. | Range.| Mean. || Highest. Lowest. | Range.| Mean. |} Greatest. Least. d. 5 d. 2. 2 S d. 2 d. 2° = °. d. age d. G Jan. 5 | 51-2| 31 |—2-0) 53-2 | 24-6 || 23 | 46-5) 31 9-6| 36-9 | 28-0 || 31 | 28.9] 27 | 5.9 Feb. 13 | 44.9} 1 6-7| 38-2) 25-8 || 13 | 39-6] 8 | 27-6] 12:0] 33-6 2 | 26-0} 11 | 3-2 March |} 31 | 56-2) 16 | 15-3] 40-9 | 35-7 || 22 | 47.4/ 15 | 23-2] 24.2 | 35-3 | 25 | 21-8] 7] 66 April || 25 | 65-7| 6 | 24.2} 41-5 | 45-0 || 30 | 52-5] 41] 38-4] 14.1] 45.4 6 | 35-0] 10} 4-9 May 15 | 67-0} 14 | 31-5) 35-5 | 49-2 | 16 | 55-1] 8 | 41-6] 13-5 | 48-3 || 11 | 25.0] 296] 2.8 June 12 | 78-3} 1 | 36-6] 41-7 | 57-4 || 12 | 64-5] 28 | 48-0] 16-5 | 56-2 1 | 29-0] 28 | 8.0 July 10 | 71-6} 29 | 35-2] 36-4 | 53.4 7 | 61-5] 22 | 50-8} 10-7 | 56-1 || 29 | 23.4] 21 | 4.2 Aug. 29 | 73-6| 22 | 35-7] 37-9 | 54-6 || 29 | 59-6} 16 | 51-0 8-6 | 55-3 || 28 | 26-7) 9] 4-5 Sept. 1 | 75-1] 24 | 28-1} 47-0 | 51-6 1 | 60-6| 23 | 39-9} 20-7 | 50-2 || 15 | 25.8} 10] 7-3 Oct. 14 | 62-7} 6 | 26-0) 36-7 | 44-3 | 14 | 56-8| 6] 39-8} 17-0 | 48.3 6 | 25-3] 29 | 3-8 Nov. 6 | 55-8| 4 | 24-7) 31-1 | 40-2 | 26 | 52-0} 24 | 32-3) 19-7 | 42.1 4 | 20-2} 28 | 2-9 Dec. 27 | 52-0) 13 | 20-4) 31-6 | 36-2 | 30 | 45-0] 13 | 28-3] 16-7 | 36-6 || 14 | 25.0| 9 | 5-4 a TABLE VII.—Daily and Weekly Means of the Temperature of Evaporation, as deduced from the readings of the Wet Bulb Thermometer, in 1845. ODNIMANAwWNe April. 39-3 38-9 36-7 37:6 37-9 [38-5] 42:8 39-9 36-2 37-1 36-0 May. 48-0 44-2 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845. TABLE VIII.—Hourly Means of the Temperature of Evaporation for each Month in 1845. March. KP OOCONAUR WH at TABLE IX.—Hourly Means of the Temperature of Evaporation for each Astronomical Quarter, and for the Year 1845. Feb. | March, April. 33-03 32-63 32-53 32-40 52-13 32.20 32-70 33-43 34.57 35-93 36-97 37-93 . i rf \ 3 i BOCOOnNSMhwWwWRo! — PRESSURE OF AQuEOUS VApPpouR, 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. COONAN WHO TABLE XI.—Pressure of Aqueous Vapour, with reference to the Moon’s Age and Declination, ? for 1845. Mean Mean After Mean After Mean Moon’s | Pressure Pressure || Moon | Pressure | Moon | Pressure farthest of farthest North. | Vapour. D, in. 0-249 +250 -254 277 -271 +281 +289 301 271 -278 -280 -271 278 -265 WCHONAMR WWE OF 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. March. in. 0-178 175 -176 “174 -169 171 174 Ke COMNAOehRwWwWNre — TABLE XIII.—Hourly Means of the Pressure of Aqueous Vapour for each Astronomical Quarter, and for the Year 1845. 0 1 2 3 4 5 6 7 8 9 0 1 — 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. March. il. June, 0-897 | 0- [0-808] [ -873] +834 +889 +885 +888 +862 864 +875 [ -838] +827 -768 831 -768 -819 -931 TABLE XV.—Mean Relative Humidity, Saturation being = 1, with reference to the Moon’s Age and Declination, for 1845. Mean Mean Mean Mean Relative Relative Relative Relative Humidity. * | Humidity. Humidity. Humidity. 0-843 0-825 834 -863 -826 -829 -839 -859 -846 —— MAG, AND MET. obs. 1845 anp 1846. N q 50 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845. ’ TABLE XVI.—Hourly Means of the Relative Humidity of the Air for each Month in 1845, Saturation being = 1. March. 0-881 -884 -889 883 871 -886 “888 872 +829 er OOCONAOUPWNK OS a TABLE XVII.—Hourly Means of the Relative Humidity for each Astronomical Quarter, and for the year 1845. = RB OOOnNoorwnro* — Civil Day. wow onroauwnrerk w Pp = w o hm bk bo bb WH WW WD WD WO = | KB BP SBP SES El Ke CWO ON DUAR WwWNeR CTO HO AON aouwnPer wonwyo eK OC ATMOSPHERIC PRESSURE, 1845. TABLE XVIII.—Daily and Weekly Means of the Height of the Barometer, for 1845. Jan. Feb. March. | April. in. in. ai 30-031 | 29-727 29-886 |[29-594] 29.614 | 29-788 29.741 | 29-922 [29-798]| 29-677 29.691 | 29-783 29.964 | 29.873 29-894 | 29-882 29-760 |[ 29-798] 29.370 | 29-421 29-230 | 29-826 [29-458]| 30-006 in. 7 29-699 [29-770] 29-642 29-789 29.957 30-166 30-185 30-159 [30-020] 30-035 29-848 29-726 in. 29.937 29-889 29-791 29-857 29-908 [29-537] 29-628 29-130 28-910 29-030 29.406 29-463 29-397 | 29.522 29.507 | 29-510 29.482 | 29-717 29.725 |[29-686] 29-656 | 29-667 29-329 | 29-801 [29-622]| 29-899 29-370 | 29-789 29-610 29-540 29-758 [29-594] 29-545 29.497 29-617 29-941 [29-557] 29-208 29-978 30-255 30-234 30-116 30-053 [29-988] 29.857 | 29-573 29-798 | 29-285 29.410 |[ 29-566] 29.389 | 29-532 29.353 | 29-755 [29-180] 29-405 28-951 | 29-756 28-876 | 29-778 29-101 29.036 29-417 29-993 29-769 [29-760] 29-831 29-643 29-381 29.221 29.972 29.854 29-702 29-570 29-430 29.006 [29-395] 29-051 | 29-297 29-782 | 29.558 [29-625]| 29-508 29-871 May. June. in. in, 29-257 |[29-555] 29-383 29-469 [29-502] 29-682 29-638 29-585 29-340 29-559 29-153 29-049 29-105 29-038 29-462 [29-603] 29.322 | 29-957 29-408 | 30-047 [29-610]] 30-008 29.524 | 29-970 29.944 | 29.990 30-123 | 29-957 30-089 |[ 29-775] 30-047 | 29-566 29-957 | 29-610 [29-873]| 29-556 29-705 | 29-683 29.746 | 29.899 29.693 | 29.829 29-717 |[29-713] 29.744 | 29-841 29-778 | 29-574 [29-751]| 29-450 29-579 | 29.549 29-772 | 29-426 29-918 | 29-199 29-796 |[29-347] 29-851 | 29-445 29-920 July. Aug. Sept. Oct. Nov. Dec. 29.956 29.230 [29-336] 29-323 29-496 29-506 29.055 29-411 29.468 29-588 29-950 [29-626] 29-688 29-567 29-495 29-415 29-463 29-480 29-275 [29-535] 29-458 | 29-497 29-656 | 29-708 [29-643]] 29-787 29-695 | 29-663 29-866 | 29-611 29.770 | 29-686 29-677 |[29-454] 29-828 | 29-393 29-952 | 29-244 [29-871]| 29-126 29-976 | 29-571 29-935 | 29-804 29-857 | 29-597 29-792 |[29-650] 29-682 | 29-505 29-582 | 29-509 [29-548] 29-916 29-426 | 30-102 29-464 | 30-127 29-342 | 30-146 29-206 |[30-099] in. 30-094 30-066 30-057 30-062 30-044 30-090 [29-966] 29-899 29-729 29-970 29-931 29-830 29-606 [29-475] 29-227 29.279 28-979 28-839 29.297 29-573 [29-516] 29-505 29.970 29-912 29.396 29.436 29-301 [29-368] 29-421 29.252 29-405 29-439 29.322 29-320 [29-343] 29-641 29-237 29-099 29-052 29-122 29-286 [29-515] 29-904 29-972 29-757 29-683 29-519 29-618 [29-742] 29-546 29-973 30-116 30-139 29-939 29-983 [29-801] 29.586 29-616 29-546 29-577 29-863 in. 29-198 29.288 29-037 29.253 28-870 29-026 [29-411] 29.659 29-689 29-969 29-631 30-190 30-191 [29-686] 29-306 29.313 29.488 29.388 28.632 28-583 [29-082] 28.839 29.217 29.835 29-845 29-381 29-274 29-190 |[29-393] 29-199 | 29.347 [29-205]| 29-126 29-388 in, 29-964 [29-815] 30-103 29-881 29.502 29.271 29-116 29.220 [29-224] 29-193 29-195 29.352 29-650 29.767 29.508 [29-191] 28-924 28-855 28-441 28-580 29-101 29-341 [29.237] 29-804 29.452 29.144 29-319 52 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845. TABLE XIX.—Diurnal Range of the Barometer for each Civil Week-Day and Week for 1845. The. | Jan. 5 March. | April. May. June. July. Aug. Sept. in. . in, in. in. in in. in. | 0-053 : 0-130 | 0-076 | 0-066 . 0-706 | 0-061 | +313 [ -193] . +265 : -581 -162 “BE +338 ‘ +123 : +300 |[ - . +332 : -057 : +147] ‘ 540 | - ‘ : . . i -246] : +268 ‘ -073 . +132 +524 : -087 , -099 . +230] -040 . ‘ ‘ +257 : +125 -103 i - cl 3 : -210 «235 j : ‘ : J -076 | 541 3 A A A di -105 A di 4 c 4 377 475 7 q : : +176 a A 385] +2 i i p d a | A i : F : -303 45 A - s . 163] 5 c ° ; -284 A < . 4 . +344 . 4 . 6 5 , -570 -06 : 0 rl a -075 H -163 r F a ; a -140 -156 4 A 2 F 4 -061 +391 . ‘ -075 F : -201 +272) ; : c : A -036 -671 | . * . ‘| -078)] . 3 : “ A 7 -170 : : . f 5 -034 : - é ‘ ‘ “OB Mal ome - 5 Ei c -059 527 A 5 “| F -080 +527 ' : : ‘ “e -083 -431]| « . : : . 176 481 | - d 198 | -05 : ; 4 “ 034 +125 | és ri < -043 -177 | . - ase || oe 275 -414 | : CoOnNaourwnwe TABLE XX.—Diurnal Range of the Barometer, with reference to the Moon’s Age and Declination, for 1845. F Mean i Mean After Mean After Mean ge $!| Diurnal gone S| Diurnal | Poe Diurnal Rene Diurnal 5 Range. § Range. North. Range. North. Range. Day. in. Day. in. Day. in. Day. in. 15 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 5 +220 19 +232 21 +337 6 +227 6 -267 20 -182 22 +254 a +275 7 +221 21 +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 XXI.—Hourly Means of the Height of the Barometer for each Month, and the Year 1845. — Jan. Feb. | March.| April. | May. | June. | July. | Aug. | Sept. Oct. Nov Dec Year. h. in. in. in, in. in, in. 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 | 29-5857 13 -518| -690] -712| -641| -693| -604| -619| -563| -657| -585| -319| +375 +5813 14 -518} -688] -710| +642} -691 -600| -613| +564) 652) -583] -312| -377| -5792 15 -511| -681| -706] -638| -689| -598) -612|] -561| -647| -584| -301 +372) -5750 16 -504| -680| -709| -637| -690| -600| -613| -560) -644|) -585| -294|) +366) -5735 17 -501| -681 -714| -640| -693|) -603| -617| -566| -648| -586] -293) -366| -5757 18 || -502| -683) -720) -646|} -699) -603| -621) -570) -658| -593| -296| -368]) -5799 19 -508| -689| -731| -649| -701| -606) -625) -575| .658| -603| -305 -371 || -5851 20 -+519| -700| -740| -650| -704| -607| -629| -577| -659| -611 317) +375 +5907 21 -526| -704| +747) -653) -703 -607| -629,; -580| -658| -613| -328) -381) -5941) 22 -529| -708| -756| -653| -702| -605| -630| -580| -653| -615| -337| -388|| -5963 i 23 -528| -716| -759| -651| -702| -602| -628| -580| -647| -613| -338| -384|| -59574 0 || -524|} -713|} -761| -648) -700| -598| -627} -580| -643| -608| -332, -378|| -5927 1 -514| -709| -756| -643| -700|) -595| -624] -580| -634| -601| -330)| -370|| -5880 2 | -509| -704| -753| -633|} -699| -592) -622| -578/ -628| -600| -328 -363 | +5841 3 | -510) -704 -748| -627| -697| -587) -616| -578| -624) -597| -328| .361] -5814 25 ||| anita | -705| -748| -626) -696 585| -612| -577|) -624| -599| -331) -367)) -5818 5 | -510| -711| -751| -628| -698| -584| -612) -577| -630| -604| -334| -366 || -5837 6 || -510| -716| -753] -630| -705| -586| -618| -580| -636| -609| -337| -365 | 5871 Z -509| -721| +759) -638| -713) -587| -622) -588| -641| -614| -336 +360) -5907 8 -+510| -724| -760| -646|) -722| -593| -626| -592| -646| -616] -337| -354 +5938 9 | -505 -724| -757| -645| -726| -592|) -629) -597| -646|) -617| -334, -354 | +5938 10 | -500|) -726| -756) -647| -730| -592| -632| -599| -643) -615| +327) -355|| +5935 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. MAG. AND MET. oBs. 1845 anp 1846. FOU nMDNAUhWNr OC: — 54 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845. TABLE XXIII.—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 Ranges. Month. | = S| Lowest. Mean. Highest. Lowest. Range. | Mean, Greatest. in. aS. co lpdeean: pelea in. oan a. in. in. in, 4. am 30-052 18 |28-809 29-430|| 1 | 30-031] 28 | 28-876] 1-155 |29-453|) 25 |0-730 30-077 17 |29-213 29-645 30-006 29.285| 0-721 | 29.645 || 24 |0-568 : 30-244) 27 21 |28-839 29-541 | 30-185 29-051) 1-134 |29-618 0-618 | 30-289] 9 4/28-860 29-574 | 30-255 28-910] 1-345 |29.582 0-684 30-161| 1 29-225 29-693 30-123 29-257) 0-866 |29-690 0-395 | 30-072| 3 11/|28-874 29.473 | | 30-047| 6 | 29.038) 1-009 | 29-542 0-565 30-003) 1 5|28-727 29.365 | 29.976 | 29-055) 0-921 |29-515 0-706 30-175 29.008 29-591 30-146 29-126) 1-020 | 29-636 0-397 30-162 2|28.781 29.471 30-094 28-839, 1.255 |29-466 0-721 30-177 } 28-946 29.561 | 30-139 29:052| 1.087 |29-595 0-489 30-138 28.239 29-188 30-103 28-441| 1-662|29.272 0-658 30-284 28-282 29-283 || 13 | 30-191 28-583 1-608 |29-387 |) 23 |1-147 TABLE XXIV.—Hourly Variations of the Pressure of Dry Air for each Astronomical Quarter, and for the Year 1845. Feb. March. April. in. | 0-016 ‘O11 004 -000 002 -005 4 d | ‘009 -014 ‘019 “021 023 -023 0 1 2 3 4 5 6 7 8 9 _ o = = 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. Dey. Jan. | Feb. | March.| April. | May. | June. | July. | Aug. | Sept. | Oct. | Nov. | Dec. Tb. lb. Ib. Tb. Ib. 1b. 1b. 1b. Ib. Tb. Ib. 1b, 1 0-02 | 0-51 | 0-56 | 0-56 | 3-76 | [1-00]| 1-90 | 0-20 | 0-14 | 1-68 | 0.09 | 2-66 2 || 0-00 | [0-61]| [0-43]| 0-21 | 1-73 | 1-21 | 0-74 | 0-18 | 0-13 | 0.28 | [0-32]| 0-87 3 || 0-28 | 0-33 | 0-38 | 0-10 | 1-39 | 1-55 | 0-35 | [0-29]) 0-10 | 1-41 | 0-10 | 0.42 4 || 1-32 | 0-80 | 0-13 | 0.22 | [1-83]| 1-74 | 2.57 | 0-65 | 0-06 | 0-60 | 0-10 | 0-51 5 || [0-52]| 1-92 | 0-21 | 0-15 | 0-92 | 1-30 | 0-35 | 0-11 | 0-13 | [0-54]| 0-20 | 2-19 6 || 1-36 | 3-02 | 0-48 | [0-30]| 0-69 | 3-55 | [0-92]| 0-18 | 0-05 | 0-12 | 0.87 | 0-53 7 || 0-04 | 0-61 | 0-66 | 0-28 | 2-47 | 1-05 | 0.38 | 0-25 | [0-29]] 0-44 | 1-41 | [1-00] g || 0-11 | 0-08 | 0-79 | 0-82 | 0-53 | [1-49]} 0-55 | 0-46 | 0.26 | 0.39 | 0-50 | 0-41 9 || 0-09 | [0-91]/ [0-93]| 0-24 | 0-46 | 1-74 | 1-32 | 0-71 | 0.87 | 0-22 | [0-49]) 1.90 10 || 1:69 | 0-16 | 0-96 | 2-15 | 0-26 | 0-75 | 0-14 | [0-49]| 0-35 | 0-14 | 0.02 | 0.43 11 || 1-32 | 0-78 | 2.12 | 1-99 | [0-55]| 0-57 | 0-29 | 0-82 | 0-13 | 0-24 | 0-04 | 3-76 12 || [0-63]| 0-80 | 0-60 | 0-40 | 0-99 | 0-30 | 0-17 | 0-54 | 0-09 | [0-45]| 0-09 | 0-44 13 |) 0-23 | 2-90 | 0-31 | [1-89]| 0-82 | 0-15 | [0-32]] 0-14 | 0-06 | 0-73 | 0-03 | 0-02 14 || 0-30 | 0-64 | 0-94 | 3-11 | 0-22 | 0-12 | 0-70 | 0-37 | [0-15]| 0-57 | 0-02 | [1-52] 15 0-14 | 0-51 | 0-30 | 3-57 | 0-29 | [0-13]| 0-45 | 1-22 | 0-12 | 0-78 | 0-47 | 2.43 16 || 0-07 | [0-76]| [0-50]| 0-13 | 0-57 | 0-06 | 0-19 | 0-42 | 0-24 | 1-72 | [0-81]| 2.42 17 || 0-72 | 0-31 | 0-35 | 0-12 | 0-77 | 0-06 | 0-12 | [0-78]| 0-27 | 1-67 | 0-95 | 0-07 18 || 1-21 | 0-07 | 0-14 | 0-23 | [0-79]| 0-10 | 0-22 | 0-13 | 0.50 | 2-89 | 0-71 | 0-31 19 || [0-58]| 0-11 | 0-95 | 0-40 | 1-42 | 0-46 | 0.20 | 0-75 | 0-72 | [1-99]| 2:71 | 1-05 20 || 0-39 | 0-47 | 0-45 | [0-27]] 0-55 | 0-13 | [0-46]| 1-82 | 0-37 | 4.27 | 1-55 | 1-17 21 || 0-34 | 0-35 | 2.05 | 0-17 | 1-13 | 0-49 | 0-67 | 0-38 | [0-58]| 0-86 | 0-45 | [1-41] 22 || 0-73 | 0-20 | 2-44 | 0.36 | 1-14 | [0-35]| 0-87 | 1-04 | 1-28 | 0-55 | 0-18 | 2-58 bo ow Bo a © I oe | 2 rns ts — [1-29]| 0-32 | 0-44 | 0-33 | 0.66 | 1-57 | 0-24 | 0-69 | [1-10]| 2-50 0-35 | 0-23 | 0-58 | 0-25 | 0.21 | [0-87]| 0-37 | 1.37 | 0-29 | 0-88 0-61 | 0-75 | [0-87]| 0-45 | 0.20 | 0-59 | 0-93 | 0.60 | 1-42 | 0.56 1-83 | 1-75 | 1-33 | 0-30 | 0-81 | 1-13 | 0-42 | [0-91]| 2-69 | 2-68 3-44 |[1-08]| 0-74 | 0-53 | [0.35]| 0-52 | 1-43 | 1-27 | 1-65 | 2-57 wo wo Ww a ow = yw © = No LY ep) Ler) [oe | eo oer wo o wo is) a © i) co = — ao 28 0-35 | 1-12 | 5-83 | 1:09 | 0-99 | 2-30 | 0-37 | 0-06 | [1-08]] 1-02 | 0-83 | [1-84] 29 0-12 1-34 | 0-74 | 0-89 | [1-13]] 0-12 | 0-15 | 0-93 | 0-49 | 2.24 | 1-45 30 0-02 [2:05]| 1-90 | 0-42 | 1-02 | 0-38 | 0-24 | 1-10 | 0-81 | [1-44]} 2-84 31 0-08 0:90 0-19 0-40 | [0-14] 0-62 0-93 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. COnaunrwhy— TABLE XXVII.—Mean Pressure of Wind with reference to the Moon’s Age and Declination, for 1845. Moon's abies Moon’s sige a oe wae pit Age | wing, | 48° | wing, [PMC] Wing, [RUE wing. eee Ce | — Day. 1b. Day. 1b. | 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 2 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 22 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 11 0-33 || IL 0-44 25 0-82 27 0-68 | 12 0-48 12 0-58 26 0-92 28 0-70 13 0-40 | 13 0-75 27 0-69 PRESSURE OF THE WIND, 1845. TABLE XXVIII.—Maximum Pressure of Wind in each Civil Day in 1845. oaonnrnunPr why = — lt 1 ln = os _ wo 15 —_ on a bo poe _- Oo © tr wo bv ~m oo iw) ao bo “NO bo wo © o wo w =a © MAG. AND MET. oBs, 1845 ann 1846. 5 by Or RESULTS OF MAKERSTOUN OBSERVATIONS, 1845. io’ 0) TABLE XXIX.—Means of the Maximum Pressure of Wind between the Hours of Observation, for each Month in 1845. March. Ib. 1-20 1-03 0-95 0:97 1-04 0-90 0-96 0-91 0-95 1-28 1-36 1-36 1.37 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. Mak, Nov. Feb. May. Aug. i M. 7. Dee. March. | June. Sept. s 1. C, March. Jan. April. | July. Oct. Jan. April. ¥, Ib. 11—12 || 0-86 | 0-75 0-49 | 0-58 12-13 0-83 0-71 | 0-45 0-58 13—14 |} 0-82 | 0-76 0-45 0-55 14—15 || 0.86 0:76 0-45 0-55 15—16 || 0-91 0-79 0-46 0-51 16—17 || 0-93 0-69 | 0-50 0-51 17—18 || 0-95 0-78 0:56 | 0-56 18—19 |} 0-80 | 0.78 0-74 0.48 19—20 || 0-86 0-82 0-90 0-53 1-03 0-99 0-67 21—22 || 0-93 1-12 1:05 0-81 22 93 1-05 1-12 1:14 | 0-97 bo T wo _ o © _ PRESSURE OF THE Winp, 1845. 59 TABLE XXXI.—Hourly Means of the Maximum Pressure of Wind within 10™ at the Observation Hours, for each Month in 1845. ee — — ——— RK OOONAUNHRWNH OS a TABLE XXXIJ.—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. Malo 7. - |¢ May. | Aug. | M. 7, || Dee March, June Sept. | Year. Jan April July. | Oct. | =} —|} h | lb. lb. Ib. Tb. | Ib. 0 || 0-74 0-83 0-83 0-63 0-76 1 || 0-75 0-84. 0:84 0:70 | 0-78 2 || 0-68 0-85 0-81 0-62 0-74 3 0-68 0:85 0-79 0-56 0:7 4 | 0-58 0-75 0-74 0-60 0-67 7 5 | 0-67 | 0-68 0-68 | 0-44 | 0-61 6 || 062 | 0-59 | 0-55 | 034 | 0-53 7 0-64 | 0-51 0-42 | 0-33 0-48 8 0-73 | 0-49 | 0-34 | 0.32 | 0-47 9 0-76 0-57 | 0-28 | 0-33 0-48 10 0-79 | 0-51 0-26 | 0-29 0-46 11 || 0-69 | 0.45 | 0.29 | 0-33 | 0-44 | H 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. i May. June. Wind blowing steal from | | | Times. | Press. | Times. | Press. || Times. Press. | Times. | Press. Times. | Press. | Times. | Press. = Fie! Ib. | |. 1b. Ib. 1b. || 1. N. 1 | ot | 7 | 47 | 28 | aun | 18 | 45-2 | 19 | 228 1 10 | 18-1 N by E. 3a,|) 0% 5 | 14 | 14 | 14 | 26 | 59-4 | 18. | 20-8 3 | 10-3 NNE. 2 | 02] 6 | 24 | 28 |158 | 31 | 43.2 | 86 | 682 2.0 NE by N. 4 | 30 | 2 | 03 | 14 | 86] 16 | 127 | 109 | 671 | 2 | 03 NE. 6 |-o9 | 3 | o4 | 15 | 54] 36 | 11-0 | 104 | 657) 16 | 76 NE by E. Wiel). 2d, Beak, Opal er lokieeMh, ts] 46 | is |10-7 | 2 | 14 ENE. 1 | 06 6 | 3 ee a5 |) 7:8) t88 oa) tae E by N. Fa pee 3 | 04] 11 | 59 | 31 | 105] 13 | 64 2 | 10 E. 4 | 07 4 | o9 | 1 | 59 gs | 138 | 42 | 10 | 28 E by 8. 3 | 05 2 | 08 2 | 05 2 | 20 5 | 20 ESE. 6 a2 3 | 08 railea pe ie Tue pag st Ll SE by E. Sop pl 2 | 04 : 3 | 09 SE. 11 | 28 ay ah 5 es ee ia 2 | 03 4 | 08 SE by S. 5 | 1b Pesaladlae 5 | 29 ws : ; SSE. s | 31 || 17 | 10-2 gfe as |) 176.) oe alee 3 | 0-4 S by E. 8 | 63 | 19 | 17-6 Ge || Ga. | MIE eaN|! see” ||) ba 5 | 56 S. a1 | 334 || 23 |136 | 11 | 29 | a2 | 59] -- |. |) a3 | az S by W. 39 | 31-9 || 23 | 94 7 | 19 | 15 | 93 B) abnor | 1 1 eet SSW. 64 | 66-6 || 51 | 24-5 || 41 | 50-1 || 40 | 35-2 9 | 10-7 | 47 | 562 SW by S. 26 | 43-8 || 21 | 111 || 34 | 54-3 |] 12 | 120 6 | 39 | 47 | 55-3 sw. 58 | 60-2 || 63 | 43-7 || 35 | 346 || 36 | 29-0 || 24 | 494 || 89 | 666 SW by W 15 | 44 | 15 | 132 | 15 | 39-7 | 14 | 102 || 19 | 236 || 35 | 29-5 WSW. 12 | 43 || 18 | 40 || 30 | 31-5 7 | 26 || 16 | 9-6 || 38 | 17-3 W by Ss. 10 | 39 || 11 | 43 | 13 | 186 a g ih any w. 9 | 35 | 12 | 40 | 20 | 360 3 | 06 | 13 | 5-9 | 21 | 63 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. September. October. November. December. Times. | Press. MAG, AND MET. OBs. 1845 anp 1846. Times. | Press. Times. | Press. roOonwmrA BP Pe BP DP Wind blowing 62 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845. TABLE XXXIV.—Number of Times which the Wind blew from each Point of the Compass with the swms of the Pres- Number of times which the Wind blew from each B SE by | ESE.| by | SE. SSB. 8. BE. : | | _ wei _ _ — SCNUNNWWHONTHONKR ROWE BWR DBR WE ATID OWe Ae: PrwNMewwRwe aww: _ — RPONNADOADOHNUAUNOHOOOWWUNanorwahds PH EROOWANAWwNeNE: ws AOR NWNWWNHENUNTNEAWWNe Ww ty www Ke DNUNDOWNIDOWDN AWW EK weD: BEDE NWAWODEAKRUMwWAWH DO: w eB npNoweEwwarANRoOUwNoeEnNNwnN: = WHWHOWRIAMAAARWORSTNUNWAKRK NWN 18 33 105 | 80 — fo} R=) | oo to o oO Sums of Pressures with which the Wind blew from Ib. Ib. Ib. pean Oal Bs wang |) (Or wee ||) (Ore 0-6 Abc 0-1 0-1 YH dw ow SSSCSOHHwWTIHNwWHRwWEHSOSOHrSOS. .ooeorowonscos, POH Oe Se eee wPi 2} BE waAkoSoaAnHATH ASAD _—— > HB SOOHIAMARWNHOS 129-2 AG *| prumiaity. "SS" | prumiaity. i=} 5 = ODIA MAW OE 0-827 "| 0.847 0-873 847 -820 843 +854 +829 843 -840 841 +854 867 881 879 -862 -885 TABLE LIV.—Mean Relative Humidity at the Observation Hours for each Month, for each Astronomical Quarter, and for the Year 1846. Makerstoun Mean Time. January 0-905 | 0-924 | 0-906 | 0-887 | 0-878 | 0-894 | 0-890 | 0-888 | 0-895 February 878 -886 864 “799 ‘777 778 823 841 862 March -917 “911 -835 -760 -710 ‘707 -765 -848 +885 April 941 -900 814 ‘777 ‘773 -763 804 -871 +924 May 892 “794 -702 ‘658 -669 -644 -690 ‘770 -838 June ‘901 -818 664 565 +544 +588 616 -730 -848 July +902 ‘841 ‘792 -763 ‘751 -750 -783 +849 +898 August -969 +921 +847 ‘778 -758 -729 -760 -862 +929 September +959 -940 -865 ‘774 763 ‘768 -798 -890 -935 October +931 +932 *895 “859 +814 -808 871 -907 +925 November -926 -916 -899 -864 -832 -843 -896 +899 -914 December -912 ‘923 +912 -872 -863 -873 -903 -910 -919 Noy., Dec., Jan., ‘914 +921 -906 -874 -858 -870 396 -899 -909 Feb., Mar., Apr., ‘912 +899 838 ‘779 -753 “749 ‘797 +853 -890 May, June July, 898 -818 ‘719 -662 -655 661 696 -783 -861 Aug., Sept., Oct., 953 -931 +869 -804 ‘778 -768 810 -886 -930 The Year, 2 MAG. AND MET. oBs. 1845 anp 1846, T RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1846. TABLE LV.—Daily and Weekly Means of the Height of the Barometer in 1846, Feb. March. April. July. Aug. Sept. Oct. in. In. in. [29-336]|[29-259]| 29.046 29.484 | 29.397 | 28-913 29-296 | 29-169 | 29.016 29.493 | 28-892 | 29.273 29.450 | 29-212 |[29-100] | 29-451 | 29-265 | 29-060 29-276 | 29-377 | 29-125 [29-730]][29-681]| 29-214 30-099 | 29-941 | 29-401 | 30-197 | 30-053 | 29.468 29.905 | 30-239 | 29.246 29-896 | 30-266 \[29-424]) 29-859 | 29-955 | 29-227 29-925 | 29-604 | 29-513 [29-892]|[29-511]| 29-690 29-978 | 28-707 | 29-839 29-899 | 29-078 | 29.727 29-793 | 29.458 | 29.844 29-752 | 29-438 |[29-848] | 29.774 | 29-479 | 30-000 29-684 | 28-990 | 29-851 in. 29-608 29.486 29-434 [29-275] 29-247 28-982 28-891 28-936 29.042 28.934 [29-170] 29-436 29-752 28.923 28-718 29.029 29-258 [29-031] 29-290 29-190 28-702 in. 30-089 30-043 30-036 30-053 29-961 [29-847] 29-648 29-564 29.822 30-128 in. in. 29-490 | 29-724 29-615 |[29-783]| 29-768 | 29-660 29-813 | 29.722 [29-557] 29-736 29-119 | 29.730 29.445 | 29.596 29-581 | 29.424 29-553 |[29-626] 29-670 | 29-631 29-807 | 29-626 | 30-194 [29-635] 29.748 | 30-297 29-714 | 29-313 |[30-108] 29-514 | 29.608'| 30-057 29-551 | 29-418 | 30-007 29-282 |[29-434]) 29.963 28-995 | 29-492 | 29.824 28-911 | 29-311 | 29.756 [29-273]) 29-463 | 29.499 29-556 | 29.494 |[29.561] 29-423 | 29-689 | 29.563 [29-456] 29.380 29-105 29-041 29.335 29-341 29.420 [29-124] 28-823 28-971 29-042 29-183 29-377 29-412 [29-381] 29-847 29-825 29-790 29-727 29-781 [29-766] 29-664 29-733 29-900 30-025 29.474 29-392 29.435 29-603 | [29-641], 29-715 | 29-821 29-883 29-832 [29-867] 30-078 | 30-104 30-003 29.899 29-917 | 29-884 | 29.522 29.200 29-195 29.422 29-315 [29-304]| 29.321 29-099 | 29.470 | 28-779 29-298 29-247 [29-504] 29 785 30-025 29-891 29-926 29-919 29-939 [29-960]| 29-421 29-918 | 29-929 | 29-741 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. | | in. in. in. in. in. in. in. in. in. January 29-364 |29-375 |29-390 |29-397 |29-392 |29-398 |29-406 |29-412 |29.413 February | -598 -602 -612 -624 -620 -613 -620 633 -634 March | -405 -410 411 -416 -409 -402 +399 -404 -406 April 523 | -536 539 +534 +532 524 “527 +545 +556 May | -643 *655 -656 -655 652 -643 -639 -648 -652 June | -716 721 “717 -712 -702 -695 -685 -692 -707 July | 549 +357 +560 -561 +598 -550 548 -554 -567 August | -695 -700 697 693 -685 -678 674 -687 ‘701 September | -735 744 “747 -738 ‘727 714 713 -726 ‘734 October | +306 311 314 +309 +299 +298 308 +322 +330 4 November | -654 | -665 678 676 659 | -646 -642 -638 642 : December | ‘577 581 -599 -604 -595 598 -604 ‘614 -620 t Nov., Dec., Jan., I 5317 | .5403 -5557| +5590) +5487) +5473 5507 5547 5583 Feb., Mar., Apr., | -5087) -5160| -5207|} -5247| -5203| -5130 5153 5273 5320 May, June, July, | -6360| -6443| -6443/ -6427| -6373|) -6293) -6240| -6313 6420 Aug., Sept., Oct., -5787 +5850 5860} -5800| +5703] -5633 -5650 5783 5883 i) The Year - TABLE LVII.—Diurnal Range of the Barometer for each Week-Day and Week, for 1846. March. ATMOSPHERIC PRESSURE, 1846. 252 +246 377 211 071 -300 COnNank wwe +235 TABLE LVIII.—Diurnal Range of the Barometer, with reference to the Moon’s Age and [0-211] 217] Declination, for 1846. Mean Diurnal Range. After Moon farthest North. Mean Diurnal After Moon farthest Mean Diurnal a 0-221 -147 +248 +248 Da WONIKHAPwWNH OF 76 RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1846. 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 Means of the Extremes, for 1846. Extreme Daily Means. Extreme Diurnal Ranges. ’ Extreme Readings. Month. || | | | Highest. Lowest. Range. Mean. | Highest. Lowest. Range. | Mean. Greatest. . in. dh. in. in. in. | d. in. h in. in. in. |. in. 30-304| 21 18 |28-498| 1-806 |29-401 || 9 30-245 28-663| 1-582 29-454 0-761 | 30-268) 24 22 |28-863 | 1-405 |29-565 | 10 | 30-197 29-041) 1-156 29-619 | 0-539 30-380|16 8|28-492| 1-888 |29-436 | 12 | 30-266 28-707| 1-559 29-486 0-730 |30-058| 2 18|28-823| 1-235 |29-440 | 30 | 30-025 28-913| 1-112 29- 469 0-436 | 30-066) 18 28-772 1-294 29-419 | 29 | 30-034 28:798| 1-236 |29-416 | 0-496 | 30-115] 23 28-988 | 1-127 |29-551 | 16 30-088) 24 | 29.055) 1-033 |29-571 | |0-500 29-986 18 28-778 | 1-208 |29-382 || 30 | 29-939 28-911) 1-028 |29.425 | |0-437 30-132) 13 29-118 | 1-014 29-625 | 25 | 30-104 29-311) 0-793 |29-707 | 0.579 | 30-351) 29 29-027 | 1-324 |29-689 | 12 | 30.297 29-099 1-198 |29-698 |0-432 30-061) 21 28-582 | 1-479 |29-321 | 27 oe 28-702| 1-323 | 29-363 | 1.026 30-352) 20 8/|28-267| 2-085 29-310 || 12 | 30-325 28-760) 1-565 |29-542 | 0-970 | 30-304) 22 18|28-681| 1.623 |29.492 | 31 30-279 28-749 1-530|29-514|| 25 |0-537 | i TABLE LX.—Daily and Weekly Means of the Pressure of the Wind, in Pounds on the Square Foot of Surface, deduced from the greatest pressures occurring between the Observation Hours, in 1846. PRESSURE OF THE WIND, 1846. 17 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. April. May. Ib. lb. 0-18 0-08 1-27 0-16 [0-59] 0-76 1.00 0-28 0-07 O ONDA wh TABLE LXII.—Mean Pressure of Wind with reference to the Moon’s Age and Declination, for 1846. After After Pressure ieian Pressure Micon of - A farthest of farthest nai - || North. - | North. Pressure 1b. D 0-33 0-45 0-51 0-36 CHIMTNB WHE OF MAG. AND MET. OBS. 1845 ann 1846. U RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1846. TABLE LXIII.—Maximum Pressure of the Wind in each Civil Day in 1846. March. PRESSURE OF THE WIND, 1846. 79 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 Mean Time. January February March April May June July August September October November December Noyv., Dec., Jan., Feb., Mar., Apr., May, June, July, Aug., Sept., Oct., The Year 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. SJ USGESOEE | 17%, 19%, 21», 23h, 14, 3h, 5h, 7 9h, Mean Time. | | 1b. lb. lb. 1b. lb. lb. lb. 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 0-68 0-72 0-78 0-53 0-46 0-34 August | O-td 0-16 0-32 0-35 0-25 0-30 0-26 0-16 0-10 September | 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 Noy., 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 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. aa) 1b. Ib. 1b. Ib. Ib. Tb. N Po lee rh Gees 13-7 | Sa eog (| ae N by E. ; 1)) | PeEe6 Ses. | 12-7. || oe NNE. 0-4 . 3 0-9 25 15-7 a 1-7 8 2-9 NE by N 0-4 2 0:8 9 4-4 | 3 0-8 2 0-4 NE. 02 || . 1 | 03 | 2 |109 |) 9 | 30] 9 | os 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 E by N. 1 0-1 2 0-2 1 0-7 2 0-5 E. 3 2-6 4 0-6 6 3-6 1 0-1 E by S. Es tet] nO-0 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 a 5-2 3 0-9 SE by S. oo . 1 0-1 2 0-2 1 0-1 2 0-8 SSE. 2 0-3 1 1-0 3 0-5 6 33 5 3-1 7 2-6 S by E. 2h eile 2 | 04 it |p Oe 6 | 5-4 1 | 02 Ss. 13 1-9 9 3-2 16 30-0 6 33 13 11-2 5 1-4 S by W. 16 7-2 an We 3 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 17 8-7 W by S. 1 0-7 4 1:3 4 8-8 4 2:0 | 4 1-9 2 0-4 Ww. [eu 1-0 || 13 | 13-6 5 | 38 5 16 | 14 | 15-6 (aap 8G: WhyN. | 3 | 30 6 | 45 Gr] 32) 1 | 12] 4 | 31 4) 5 WNW. | 1 0-9 9 5-1 4 4.9 ste oe || 613 13-9 2 1-2 NW by W. 2 1-8 1 0-2 1 03 | 3 0-5 || oe Nw. | 1} 26) 9 | aa 4 | ney 3 | o7 | 3 | a7 | 3 | 08 NW by N. . 1 0-1 = ee 2 1-6 | 3 21 ae _ 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 os hae mo 2 0-3 2 0-4 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. September. October. | November. December. | | Wind blowing Times. | Press. || Times.| Press. || Times. | Press. || Times. | Press. Times. | Press. || Times. | Press. oe | | lb. lb. Ib. | lb. lb. 1b. TT sme 4 1-9 3 0-4) 6 0-9 6 | 8&8 10 | 10-2 12 | 14.2 N. 4° |e 2 | 05 2 | O4 | ve fos i 2:7 N by E. 16 || 9 ce 0-5 14 | 185 4 0-7 i” 6-6 | NNE. 3 0-7 8 1:3 6 0-8 | 5 3-6 eee wee eee fee | NE by N. 19 4-1 22 3-9 | 16 3-5 5 0-5 3 0-3 ve ve NE. 4 O8 |} 5 1-2 1 1-0 Shc 2 + one 1 0-1 NE by E. 8 2-3 11 2-1 13 4-4 3 | 04 2 0-2 1 0-1 ENE. 2 0-6 2 0-5 a a 2 0-3 ca ese see oe E by N. 2 0:3 11 2-1 9 1-2 3 0-3 2 0-2 oe on E. 1 0-2 2 0-4 4 2-0 4 1-6 2 0-2 oss we ESE. on 533 2 0-2 sos 1 0-3 1 Ol | + oo SE by E. 1 | 0-2 8 | 1-2 7 | 24 4 | 14 Bi Gag TRAE ee SE. : . . 3 1-2 1 2.0 te tee SE by S. 2 0-2 2 0-2 4 0-9 8 7-4 13 | 14.2 1 0-2 SSE. 3 2.9 2 0-4 1 0-1 at A. 4 7-0 3 0,3 S by E. 9 6-7 “i 4:5 6 1-1 12 3-1 36 | 25-5 4 0-4 s. 6 8-8 7 1-5 6 1-6 4 1-5 4 1-3 1 0-2 S by W. 30 | 211 | 21 | 50] 16 | 40 || 44 | 25-9 | 30 | 20-7 | 13 | 2a ssw. 12 9-7 6 3-0 5 1.0 5 2.4 5 3-6 3 1-7 SW by S. 11-7 7 0-3 3 1 2.7 15 4.3 5 12 17 2-7 WSw. 2 0-8 2 0-3 1 0-1 3 0-8 W by 8. 6 1-0 8 1.3 1 0-1 11 2.4 Ww. 1 0-1 1 0-6 1 0-1 2 0-4 W by N. 2 0-6 4 1-0 3 0-7) 5 0-7 Ww. i) a1 By) ie | 10 | 55 NW by W. a) | 14 }e3| aa | ov | as | a6 | 180 Nw. 3 2.9 3 1-4 12 9-2 NW by N. 2 1-1 7 3-5 13 | 11-2 NNW. 6 3-5 3 MAG. AND MET. ops. 1845 anp 1846. x 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 17%, 191, 21h, 23h, 1h, 3h, Wind blowing from Times. | Press. || Times. | Press. || Times. | Press. || Times. | Press. || Times, | Press. || Times. | Press. =o 1b. Nene Tb. fe 1b. 1b. 1b. | 1b. N. 5 | 38 OF ess 4 | 55 9 | 40 | 10 | 78 | 8 | os N by E 1 1-0 3) 5:0 a 5:8 : 4-7 NNE. 5 | 24 || 08383 5y leet ie. | 9-4 | BEA Tey |) ae NE by N 4 | 20] 10 | 3.0 Opal tess BY || (0:3 il) wesel| 2x5 3 1 ab NE. 6 | 1-2 5 | 0:9 | a5) | alae | 4:7 |) ee) | 3:6" || abe alter NE by E A | O82 |= 2 1) ae 2 | 0-7 8 | 24 4 | Q1 ENE sit aol ca Io as Nige Meeks | 36 | ge liste geeiieeee E by N : 4 | aa 2 | 0-3 3) |) a7 E. i | O-4 2 | 02 ee a | en 5 | 25 E by S. 1 || 0-1 : Hi ; ESE. 2a eae 4 | 2.3 5 | 28 6 | 22 SE by E re |) 38} 1 0-8 2 | 03 ih ol ei eye Cel SE. i |e ile 3 1-1 |) Gp Ae oe 5 | 20 g) 388 SE by S. i |) (2! 1 | 03 2 | 02 By Re Ie cece oa 2 || 321 SSE. a ee Silk is 9 | 53 @ || Gait 6 | 7:8 7 | 35 S by E 1 | 06 2 | 02 6 | 52 COMES a) Il) oes 1 | 04 Ss 12 | 73 || 16 | 11-1 | 16 | 233 || 18 | 19-4 | 92 | 11-6 || 13 | 78 S by W. 9 | 48 | 12 | 60 7 | 90 Sal 6: |) eee 5. eaeo SSW. 26 | 11-0 || 30 | 122 | 27 | 171 || 35 | 33-5 || 27 | 20-1 | 33 | 20-4 SW by S. 10 | 9-9 8 | 63 || 10 | 55 || 14 | 13-7 | 19 | 189 | 16 | 19.9 Sw. 30 | 195 || 32 | 163 | 32 | 18-6 || 30 | 23-7 | 33 | 23-3 || 38 | 38-9 SW by W y | 40) to} eae | ae eee) ae | 79 |) os | eae |) puto ee Wsw 1B 93s lealil 3-7 || 21 | 121 | 22 |116 | 16 | 96 | 16 | 93 W by S 307 || sito 5 1-4 4 | 36 1) oae6pale aaz0 7 | 9.5 Ww. 6 | 3-9 Te lees gs | 39 | 11 | 50 | 12 | 88 | 16 | 105 W by N » | See 2. +| agi7 Th" eaey eae 15 | 6 | 34 Gi | nae WNW 6 1:2 4 1-4 5 3-1 8 75 | 4 3-5 6 4:8 NW by W, 2 | 03 || we 4 | 44 6 | 16] 3 | 09 3 | 08 NW. 1 ee 3-0 5 1.4 10 3-9 || 12 4.2 | 12 | 28 11 3-0 NWbyN. | 3 | 18 3 | 16 See e|, 1°7, || aca’) 37a NNW 4 | 25 Gi) me} 3) oleae A Oya die cia) || 2c 6 | 20 N by W 4 | 241 4 | 30 5 | 22 5 | 4.2 3 | 14 3 | 04 | I 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. 5h, 7h, 94. 9 Observations. 12 Observations. Mean Pressure, Wind Times. | Press. || Times. | Press. || Times. | Press. || Times. | Press Times. | Press. || Blowing. Tb. Tb. 1b. | lb. lb. lb. 10 | 49 1.9 80 | 67 | 535 33 | 71.2 | 0.86 2/09] 2 | 09 08 | 18 | 191 | 22 | 21-8 | 0.99 12 | 7-2 11 | 76) 17 | 44 s9 | 51-6 | 122 | 61-8 || 0-51 6 | 1-4 4. | eq 0-7 || 40 | 13.9 52 | 17-2 || 0-33 13 | 25 | 13 | 25 | 13 | 16 || 110 | 29.2 | 138 | 33.4 0-24 gy |] ae} 5 | 1-0 2 | 08 28 9-4 32 | 10-0 | 0-31 10 | 3-3 | 10 | 19 3 | 08 64 | 20-8 73 | 23.8 || 0.33 0-1 2 | 04 || 5 12 2.9 12 29 || 0.24 2.3 1-1 6 | 06 41 10-8 51 11-7 || 0-23 eee oe oe 1 0-1 1 0-1 0-10 4 | 06 0-1 alr Ost 23 9-8 24 9-9 || 0-41 malal=t 1.0 || - 10 3-7 11 4-1 0-37 6 | 1:3 0-5 Bill beanll:3 Timlin Sul 49 | 17-1 0-35 = te) 0:1 10 4.4 13 51 0-39 6 | 33 6 | 26 ae et 54 | 33.9 70 | 38-4 | 0.55 eS 1-5 2] 12 25 | 17-9 29 | 206 | 0-71 18 | 96 | 15 | 76 6 | 16 || 136 | 923 || 163 | 105-6'| 0-65 6 | 3.2 7 | 3s Bel) 427 71 =| 47-8 92 | 620 | 0-67 33 | 16-2 || 28 | 17-9 || 32 | 161 || 271 | 164-5 | 358 | 205-1 0-57 9 |125 | 15 | 89 || 12 | 76 || 113 | 103-2 | 146 | 129.4 || 0.89 35 | 23-7 || 41 | 19-4 || 27 | 13-8 || 298 | 197-2 | 383 | 247-1 0-65 15 | 11-7 9 | 62 9 | 61 || 101 | 660 | 125 | 81-3 | 065 13 | 48 | 20 | 83 ] 13 | 49 | i45 | 675 | 184 | 79:6 || 0.43 1 | 0-1 5 | 1.0 3 | 22 | 34 | 228 43 | 266 || 0-62 9 | 40 4 | 08 iad at 7 81 | 47-1 | 102 | 55-5 0-54 ee WEE 3 | 04 2 | 07 31 18-7 35 | 21-5 0-61 3 | 49 4 1-2 5 3-9 50 31-5 66 39-1 || 0-59 ip ile 2 | 04 | 23 | 10-9 26 | 11-3 0-43 14 | 69 8 | 65 6 | 30] 985 | 347 | 104 | 43.7 0-42 1-5 5 | 43 1 | 02 25 | 17-5 31 | 20-5 0-66 3-9 6 | 48 5 | 49 49 | 25.9 62 | 37-0 | 0.60 0:7 2 | 1:3 1 | 02 29 | 15-8 36 | 19-7 || 0.55 Wind blowing from 84 RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1846. b) 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 Means with reference to Whole No. No. of Obs., Directions. of Obs. Wind blowing. | . ae . 1b. 1b. January . : 2 | ° 0:37 0-56 February March April May June July August September October November December rhea Astron. Qrs. a: Ee AS TABLE LXIX.—Sums of the Pressures of the Wind in Table LXVILI., 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 prea Means with reference to 7 N. E. | 8. W. Sums. Whole No. No. of Obs., Directions. of Obs. Wind blowing. h. lb. Ib. Ib. 1b. 1b. Ib. Ib. iif 19-3 6-2 51-2 | 42.8 48-6 0-16 0-27 W. 4158. 19 | 24-5 8-4 51-8 44-3 45-1 0-14 0-22 W..37 5. 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. 4958. 1 | 29-6 20-7 91-6 80-0 85-9 0-27 0-30 W. 46S. 3 40-0 24-7 88-9 90-6 82-1 0-26 0:29 W. 375. 5 | 31-0 16-9 73:6 | 64-7 64-0 0-20 0-24 W. 425. id, 28:3 12-0 60-6 | 51-7 51-2 0-16 0-21 W. 39S. 9 I 23-7 6-9 46-7 43-0 42.8 0-14 0-21 W. 3258. Sum of 9 Obs. W. 42S. Sum of 12 Obs.) W. 415. 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. Currents. Seud minus Wind Cir.-str. minus Wind Seud Cirrus minus Wind Cirrus minus Scud Cir.-str. a Quadrant N. to E. Quadrant W. to N. | Res No. of | Diffs, of | Mean Mean ults-! Motion. Result. | +23 i 0 +34 — 67 0 +34 —48 0 +45 0 +26 oes +20 RPOWOONKR WMO RF MRE NIO 0 Quadrant E. to 8. Quadrant S. to W. Mean Mean No. of |p: Mean || No. of |y- Mean Results. rene Result. || Results. aes Result. 17 +20 129 +22 4 — 9} +12 11 —- 9} +19 4 0 6 0 7 +17 53 +33 2 -—13 | +11 6 —14} +29 0 0 0 0 9 +28 17 + 23 0 tee +18 || 10 -18 | + 5 0 8 0 2 +58 36 +40 0 ooo +58 3 —21 | +32 0 0 4 0 | 6 +52 18 +39 0 ve +44 6 —-12 | +23 1 0 3 0 No. of Results. to _ RBI RF REF WOAWDNOKRNF OH _ _ Mean Diffs. of Motion. +25 —ll 0 +30 —38 0 +36 —27 Mean Result. ° +15 TABLE LXXI. 1 1-2 2 4-1 3 9-8 4 || [6-6] 5 5.1 6 9-9 7 9-5 8 85 9 9-1 10 9-3 11 |} [9-0] 12 9.2 13 8-4 14 9-8 15 5-7 16 9-7 17 9-4 18 || [8-3] 19 || 10-0 20 || 10-0 21 5.3 22 || 10-0 23 73 24 6-6 25 || [7-8] 26 9-7 27 5:8 28 7-5 29 73 30 9-5 31 || 10-0 7-9] | [8-1] 6-1 7-9 : 8:1, | 10:02 6:3 74 | 9.9 6:8 2.7 | [9-0] 72 | 89 | 88 56 | 46 | 9-5 [6-7] | [6-2] | 10-0 5-7 62 | 29 79 | 92 | 61 7-1 5-7 | 10-0 5-4 8-4 | [7-6] 25 8:5 9.3 9-72" |) emt 7-5 [7-6] | [7-9] | 10-0 9-4 85 | 7-8 9-2 5-3 | 10-0 9:7 | 86 | 10-0 10-0 3-1 | [7-9] 10-0 36 | 4-8 9-5 1) 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 | 7-1 | [8-2] 7:3 7.8 8-4 6:8 6-1 6-2 [7a | 3 8-1 9-9 8-1 10-0 0-4 9-2 7-0 4-9 9-1 2.2 8-9 [7-9] 7-1 [9-6] 1-4 9-9 6-2 7-9 10-0 15 5-9 7:7 9:3 9-2 5-7 |, [8-8] 7-9 7-0 9-7 5-3 9-8 2-9 [6-9] 6:3 [6-9] 8-1 10-0 4.2 4-3 9-9 10-0 8-8 6-9 5-4 8-8 10-0 [7-3] 6:3 {6-3] | 10.0 7-1 4:7 2.2 4.2 8-2 8-8 8-6 6-6 8-7 5-8 [8-5] 8-6 9-2 8-9 7-2 7-0 9-1 [6:0] 4.5 [4:7] 9-3 5-6 3-8 6-1 4:7 8-7 7-4 5.6 4:7 1-3 10-0 [7-8] 8-7 [6-6] 1-1 9.4 9-4 10-0 9-5 4:7 9-3 8-9 5.3 8-5 8-1 [9-0] 6-6 10-0 6-3 8-1 7-8 9-9 [7-7] 4.2 [7-7] 9-9 8-9 6-7 9-5 6-7 7-5 6-4 6-0 9-2 10-0 9-9 [6-4] 8-1 [7-4] 8-4 5-9 5-8 9-6 6-1 5-8 5.2 3-5 8-1 6-2 9-6 [8-3] 3-8 9-0 9-0 5-8 9-1 6-2 [8-9] 3-5 [7-5] 9-7 4-2 7-5 5-7 6-1 10-0 7:8 10-0 3-2 8-7 9:3 [6-3] 9-0 [2-7] 9-6 7-5 MAG. AND MET. OBs, 1845 anp 1846. OUAMABAOBMOS OORES So SS OM o) 3 Daily and Weekly Means of the Estimated Extent of Clouded Sky, the whole Sky covered being 10, for 1846. 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 Mean Time. a - January February March April May June July August September October November December HAT WI AT ATOANA OWA ape howmneanwnon ARAWOWTOAAH WOH Ww mote Nm wore wwdSaSOOwWNMREA POD WNW ATTN © AOKSUIwBEUIDOWHE Noy., Dec., Jan., Feb., Mar., Apr., May, June, July, Aug., Sept., Oct., SESS or cosy CO oak ITS wr wo VW MWHET AA AIIPHANOGWHSH The Year, I te ao ao TABLE LXXIII.—Quantity of Rain by the Observatory, Garden, and Greenhouse Gauges, for the Years 1846-1849. Observatory Gauge. Garden Gauge. Greenhouse Gauge, Month. 1847. 1848. 1846. 1847. 1848. 7 1847. 1848. in. in. in. in. in. in. in. in, 0-624 | 1-166 1-95 0-70 0-95 | . 0-67 0-85 0-484 | 3-780 |) 1-57 0-52 3-68 | : 0-44 3-18 0-330 | 3-350 929 | 2-17 0-44 3-29 : 0-29 2-79 1-201 1-028 1-92 1-16 1-05 . 0-81 0-80 4-335 | 0-350 | 2-82 4-16 0.53 . 3-46 0-46 1-970 | 3-826 | 2-55 1-86 3-67 . 1-67 3-35 2-099 | 1-294 5:31 3-27 1-40 : 3-09 0-95 1-035 | 3-223 | 4-69 1-08 2-60 . 0-87 2.32 1-375 | 1-182 4-37 1-24 1-42 . 1-01 2-778 | 4-152 3-27 2. 3-72 . 2-10 | 1-839 | 2-252 1-88 . Gauge . 1:38 4-006 | 1-627 | broken, 22-076 | 27-230 Notze.—The Tables in the preceding pages have been formed in the manner already described in the volume for 1844. REPORT GENERAL SIR THOMAS MAKDOUGALL BRISBANE, BART., G.C.B., G.C.H., D.C.L., UL.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. 4 . | ci if ® | si () 4 at s py Pr ‘ id WTOC HE! ; ' A Pee Te : i - : hear. if “ c Weg Mah ot He. ; a 0M % Ae. : ' “ ‘7, etek ant Ba) . “ or we thy i+ ts 5 Loe, % {oy 4. pA Aere TRE ITAA i . z ' ten , : ire i ere id aris HAUT Se wie 3 viv REPORT, &e. To GENERAL Sir T. MAKDOUGALL BRISBANE, Bart., PRES. ROY. SOC. EDIN, Str,—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. History.—The proposal made by Humsoxpr 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 Luoyp,— 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 Zerm-days. The observer, Mr RussExt, had also the charge of a transit instrument and of several clocks. In 2 REPORT ON THE COMPLETION OF April 1842, Mr RussELL 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 We xs, 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 1848 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 Hoca, 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 RusseExt, 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. * I 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 Humsoxpr, 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. tt 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 inthe 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 1843, 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 4 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 Rosrson 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 I 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 anemometer 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.* I 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, jirst, in attempting to obtain satisfactory results from the old processes; second, in gradually develop- ing and perfecting the new ones ; and, zhzrd, 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 with at least an average care. THE MAKERSTOUN OBSERVATIONS. 7 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 We tsu, 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. I 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 Wetsu, 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 Hoae, 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. I 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 a lamp 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 atfecting 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 ¢he 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 Coutoms, 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 Cassint; the old cap and pivot suspension was used, however, for some time afterwards, as by Giri, early in the present century. Cassini 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 Sazine, 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 subdueted 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 air 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. Ihave 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 Cassini’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. Queteter 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 orno value. The conditions sought to be obtained in the construction of the thread for the Makerstoun declinometer, were the following :—/vst, The absence of all torsion from the fibre. The so-called wntwisted 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. Third, 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. Nervanper 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 Bifilar 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.—I 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 Roprinson, 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 jived 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=y where qg 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 0000133 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 qg=0:00008, I have computed that a brass rod 10 inches long, zo 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 Rey. Dr Scorespy, Mr Perris, 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 Luoyp 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 saine 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. Forsus.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 | 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. Luoyp, 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 T have the honour to be, Sir, Your very obedient, And very humble servant, JOHN ALLAN BROUN. Epiysuren, July 1850. ADDENDUM. Besides those Institutions and Individuals entitled to recewe the Edinburgh 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. ihe Oxford Observatonm | Paramatta, N. 8. W., Observatory. iheaDarhan Observatems Toronto, Canada, Magnetic Observatory. The Royal Artillery Library, Woolwich. The Trigonometrical Survey Office, London. Colonel Sabine, Woolwich. CONTINENT OF EUROPE. Captain Riddell. f Very Rev. Dr Peacock, Ely. y | Berlin, M. Dove. Rey. Dr Whewell, Cambridge. Berlin, M. Erman. S. H. Christie, Esq., Woolwich. - | Bonn, Observatory. W.S. Harris, Esq., Plymouth. Breslau, Olsenvatory- Cadiz, Observatory. Dorpat, M. Kamtz. Geneva, Observatory. al | Helsingfors, Magnetic Observatory. Kasan, Observatory. The Royal Observatory, Edinburgh. : Lausanne, M. Wartmann. The Glasgow Observatory. Milan, Observatory. Naples, Observatory. Paris, Observatory. pe Ree Prague, Observatory. Pulkowa, Observatory. The Dublin Observatory. The Armagh Observatory. Rev. Dr Lloyd, Dublin. The Karl 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, ETC. Boston, Harford Magnetic Observatory. Philadelphia, Girard College Magnetic Observatory. Cape of Good Hope, Observatory. Washington, Observatory. St Helena, Magnetic Observatory. Fate II. . Yake TS LORTL iat 1 +1 =f | hed eae i Toor t+ | i ell Ene Sh (023 5 | | ] al | i am NAEAE iI feet aie EEN | Te =I {+++ = 7 Lt ap ‘Seale CeCe Gd a Et Pe ae SBS | ees ar bassauresuateeeraeearee” sant sesiscar +} t+ +t 4+} —f+}4—+- +1} a z EO i a a a fa o ae ORSaeeeC Co BIB) GAIUS. sade { SS 4f jt ta | ot | Sne08) Seo =o: ialalaie ala Sew ie eee == {- top t-te “1 | at Sma set ath Led 4 t+ 4— |_| i ek a GeSeanace Piglet ENE es j | i at pared = ah I it = EE ae ma SERHSl aE: 4 {| ai ai t | FAP r Saseen K eee Coo Sores seats aueeeseesseeeects Lear ‘ + ie - H Beene Caer aes Se Bas z 5 wIIGOUIZIGT guawagUlgg JOPUIZILO JT guau0 gua PPPIPLOY or E : BP 2b 10! 7" Sh A LETERSIAG OT CE, 3? a rete IO? an Time _—— a ed rvations. January Dent 845, | Obse - = oa Term-Day JO) 0 Plate II. a EY a) 7 Ur a4 a rca Magnet av . 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EEE su Gre SEEREEReESD = | fi | ’ re be 2: oa ore + + ime cahaaiaie Aci a EEE gu aon Ht mm ae aa aga cot | i See + pk - + -| te io i i +++ E +4 Ate : +4 istic 8 au ; zi i. BGURETE he x | | =! 1(% > wi Qy + 4 a3 - ct t . ae ' Tt t : e [ale | | z 3 S LH i 1 | 1 t t | a i ely Hi I t & de: ee Ie a Sa Pe ee . aS eo ee 5 $2 S| 25 a “le reoigpuryoa(y ‘guorad wey) puperznso fT guoro gpg [07}494 aa x = — CTOSIHG OTCE Plate IV. 1845. ‘Term-Day Maynetical Observations. March 19,20 Dhservaltons \ rer mej 202 «Wakes Mean Ti [ean ae 10: 9) BY 7 ot eat oF # ws so oS Sn iP See ee TT n Sl a a a i limatistatatatstatatatat Salant alatatelsintctalstet t SGHOR Se afecretten eats Sel St EEL eet Ors aie doll 4 aba te acits Sai ei acae oe See 7) aN al + iia Al it. 2 P1QPUIDI9 CT Wh in \ 4S pecendting Crrrvestnarcate decrensiag westerly declinatren ANOIN CTR OTC FP late. 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PPLULOZNLO TT = T s -— Pop Ts E aa | S a i | | i i | cot s : spt rsalet EEE EPECHa ae a5 Lee rot : mail t : 4 mK 1p same [ist oT SGSRRSEEE | a Ht 3 : Lit = Tt TT I | oe | | ala ai mel ia er ; + tt i a a © I « 8 ial t oH fa ke eae mT I + - Ht + rE EERE ++ ; - =: Las. t rtitat- } It ete iz | iit it Bae el { PES 1B Sl if T & [ | t 1 isfatal +— imal T ei CoH t tal ja aoe ‘3 et t t - a9 tee is Ci T imal Set a] foes bs af t im PB ze a : ; acs GSnne rt fete} ae + { Lt ie [ = cn i dC Pepichstatet Gi i fz i ab T 1 i a] Peer 14 ees ++ t } ; Seas & t a ‘| _— i sy fe et 4 x =H stl a < = = : oO = i nN : < ae i a at om) 5 ‘ rs a + a Ht 5 S —s E | ) S ‘ ea) Si : S = [7 gS = = < q 3 3) | eB = 3 g = ne 7 q E o . § ; § : 4 , j x ‘ " Si : ; 8 : ys : Ss S|24 = Hime} Ascend ng C urves trabieate AECcreastig westerly aeclt nAOACH ARALICT ESL 7g force Peco Secs eeeer-= or 5a = SEES PRS 2eRs jo a = vie ‘| =] ALES EE Doe Aaa Ss FH H an Coa eer ace aa nee siefazeit iiss ~Yukerstoun. Obserratcon Gee 2a Ula) JULI Z. ALO TT 198 Tas 76> Ite 7s Observations fubers tows Leven bing CULVCStAHAM ALE MECPEOSEG POSTED Vy bel nln MOONE JOT CA: Bale auaviines Poo a « Yabkersiour. Observa UMPLZDUIZIIT GUaUIG WLI QOPHIZNLO ET Term-Day Magneti cal Observations June 18,19:1845. Plate. VII, s Observation Make ostonre i 10) Vd: 2) Bp 7 oF 7 or 234 27 704 19% 78> rt? 70% 75* IH 454 72: va in \ ee qeour funy pore Oey Ascending Curves tndiucatle AECrenstng westerty declination and increasing force Declinaticn. Fertecal Comp oneneé. u ' Yokrrstour Dbserra Gortingen) Mean Timej0? __ ith Horizontal Component. 502 480 : bo a = od fs Plate Vill. oO 46 +4 Gh v4 on gh 10% et aif Bea ete = [tal | fale sI- t | fei. t f { | { i ‘7 fe 3 id mi | ane: Prey | | ~ 25 IE im oil f wi = ie) am TI i H i 4 ‘ al ‘BI cael ; + iE SS | r an 2 7 4 4 alt a2 [ Ht T i fage Hl L | ig + + + 4 + 1 I 1 ie TH +. E ie E ig Be 4 7 Go 7 a on 7o4 10 tT) fa 7* a? vs Bx Ae as 254 mr 208 798 yas 7 16% 75+ Mab’ manger Mean Finekar? = 7 b if dl | | 8 ‘ im 1 Tt al t + sl s ! mee g fe 3 I +t & fate 5 i = 7 © ry ~ B [ ! = i = iB i ™ T + + : : a iS | t peceeeasee : 7 | | r 15 i EF [ i | +44 = =a r H eH H — = i= ! im Bi if i sane no EHH Ht x T T al IE z aif i o DIE T TT T | ine c | | t mae { 7 HH a eo + Ht : i ag8 ner f oy 4 [ aa | a 5 tat | e. } | =) Poo Ht Ha Hy H # a | ee ape | epcerers euceagart sretcet a) seer eeeeucae H saeseueceza > EE ] ch 6 Sait EEA ESSE BEECHER EEE Ht po 3 1 41 { E | B! | | ~~ Sit i 5 faletel aa F | PERE Er 2) EH srasatavascentatsanececta HH LD t + 1 a eal — jt I iB 5 < , aE cL | I 2S 1 Bare t i 1g 1 ae | Prd é EEE EEE HEH aa Ht rt E iS PSert PERE CEC RERGISEISer orc aoe im iB Z © i HH sae = a | Cainatmtiata 7 4 — t = J Y i~ S| | | T | a {| a i S 10 SESS CSRS Se Cee See SSS oe qq Te S Sip | PEE T | 5 ate ct + ; - ——- ato 4 = tt am Salat If zl Bee Sooes See ELL et BEBE + & \ERREEEAS +t HH ree pe | 7s ; aaa ; +444 444 =: £ ei) sadtassdpredieantee” iitacatoctiteatoctital Et imams a SSe6 = 4 Sees ' Ty Silat tar [ A LEBER I seenane ia Tt ww T T = | + td ad + 2 SESREED CH a ze +t +++ 4 3 Ly TW TT a) Sere EpeEESTGUESEESTGzES eeeveseera | & t iw + Basia 5 a 1 iB T — pe + E cH | ee eeendueed Cece | EEEEEHEEEE PEE SBeosa 1 + jt Ti ie | | ae g =i tt Tait rt — iE ‘al | Tt CI ; Se | roo EECEEE EEE EEE t Pee 3 + aaa = t t a SSE mo a a me al ietatate t [ | | i Li Sect ee SJ] T | | i is Beer iS a | + ic [ T if ei T | iis if | ‘ it [ qT Ty Talal +t < (REI E SEES Soe Peo Segoe EEE | ht secnsssass [ SeEGe PREEEEE EE EEE EEE PEt = Pita te} { zai = "SERED! ial (2 ++ | t oes HI ae leis BE =e ptt tt at + ale }utiale| a SH a ct aoe a HH t f me - ie = ae y = - = a a ee a ee 1s 42% 554 14 in |S Ascending Curves ndicate Aecreaseng westerly declimnaleen and cncreasing force, ase ane « Wakerstour Dbse -aynos jorsn 31. }PH ae Plate IX, 18.45. 1a poh bp pe SERIO EET Term-Day Magnetical Observations. Qugust 29,30 15# —+—+-1-|- WVakerstour Obserrutions - gps Mean Time Bues 2MPIGPUIZIA(T S 8 = 2 uc Uaf Ula) pOper=to fT *ayoss |x any 7 Gh 54 ADscending Curves tnadteale ACCHEASYG P calerty beltpleen AWOL TEOSNNG fOTCE rn ee Re SS AT TT —— if > ee i a hn a dl a ati il a el cd 8 ttt Souer. aoa ac Pe i hous a H Si nao oS : cco HES REE ® Ree eee eee co : 25 CCCCELy cy Cy a aeeBGur : a4 Cy PERE He HoH bil sedosaenals roo PEPE Epp r a7aaeee Ae S200 C0008 0GR87 088 Ses See is co PCE ae iat Cl ae GCC eer an os a gi Pear ete | ESwESea = a@ecces—— 8 Se I OS se Hee alll a Bi : I Soeee-——Seeeeee ri FARE Fl lS a SHSC cseeReneS oe SSE Sere aes = — — oo Aes ee. Ie Per fa EES 4 pee ® seBEESEE See ett PH See EEE in SGeeen.- "900 See a AT Ge SS res COOP Net) wel Ane Oa on ES aR pase Hoe a a SHRARZERER ae ecco SS By Cs TS | tale [ae | CPC Te | | 11] Tey TA H | | aan OS Pd CCT ee SRSA M ECE HS SU Ee USSGE C00 SERS CIE, Se sal ak CUE Bees GEC ERR COE [2S SSSSSCS8C —ciSee SSSESe 87 JSP See ees SR 18 ae Tm SG zh c EEC eee eee EE ; amen : EERE CCC pee eee 2, ECLeriti ett te qq Nl JES SES SEE eee ie 5 BRE EEE Cee eco as 4 3 SROSESE VAM Le wee & j = eee in Je eee g) FERRER 3 Ht tH | | HEE EEE ee « Yokes: ze UazIgDoUoog quaus Gury Qupedzuea fT . et "3yHds yoOUsN sy} JTOY ‘Term—Day Maoneti cal Observations. September 24,25: 1345. fakrewtoure Ubscrrattons S 7 Ss 8 T § aa iz ie! +4 ralatsiat tt eet inhi f BEBE! | T Be if Bos mee ! { i G =e t Bete aH eect —t - A ; etetaisteiet t t « . : ae f [ [ Hi 4: | me | i . 7 : >» if { + - It Ch felnle Ke ; o = [ : it 1 i = i! <: rT T = ; . | lal fafatalatal 1 ie t Hee Kt ma ae | ib ae i jet F at is $4+4--++-} Boer ome BP rz DP 2 204 798 183 76° T42 I54 pe 4} on i ape tete —+|- tippy tt ft ft ia =r | oe 4.0} S10 $00 ih {350 300) Ascending Curves tndtcate MCcreasing westerly declination ana CN CTORSIMNG fOTce /0! ee OOM csscssssseteccs 44 /UFUFNGceedcsteeeeecis: (eetetecrocecamsststidienstiise#eeauttteseese f] seaazad cad sesas! 2ot cozozanees Uereerevea en geertieaavesazat See tit att 5 a bcc tice teeretrey HET sche se SS EEE stints HEE nein Se fe SH i tard eeeeitnetetetttt cut ee Hie g Secseeesstetfosostcetiaisant satus anit AEE sfetectet evs He ‘aescieil fo] oS rasee =: Bs setae geet ccsceces sei sates Saran earn * eH Be : purus utd, D pOpzIZLLO Ef pUan: pf veto, 7 poonpsa a) 2 € MIIGDUIZIO(T hs GA Plate XT. Term-Day Magnetical Observations. October 22,23: 1845- Observations « Make rstourt MADD UNIO puausg ed 3 POL«OZLLO Ff BF oF 708 7 of 72% ISS I 75) 18> 7 78s 198 704 2” 22, 234 Or Fy 1s dsecnding Curves tndicate Mecreastng westerly declinaticn ana reereasirg fCTCe. Plato Xi. Dbserrations . . Wabe: rs louse. Gatlin ~ 3 Gen a Lee - rt Gg ale See laa] an Pele rehele tenet esi 1 : 10 CSO e Ge eae) H | ; ——. : 1 Beara a i Pt 7 : ple the “i td i tf rice * SaaS Biel | ls > —— sal hall +| + { Eat leacieal sale am t+ + i i= Ae ae 1 18 a Beee= : Ee “cite sesh | eres LS im lah a | 1 je s ae Se. is ap | Rees 2 5 BSSSSGEUSHESRURUG/-alunuaaaunee aaeee eS -ECCEE EE Sear ete rer et z i Bebe a a 3 Bi 4 seal tH " cai Sis Ie | S ; nee iE | | | 33 - Cort Sito lil i ‘| i i i i = fs | l Ee went Mean Timele 227g D117 99 grea uez) JUpUIZALO PT i” S 40 puauoduny PPPTYLIY EF oF 96 10} 7” eT) 3e 1fe on \ MP Tine Gathns: coe Tie? ‘Term-Day Magnetioal Observations. TLlovember 28,29:1845. Plato XI. tour. Observations . 4 Ty 7 7 a? oe 4 24a? 204 s94 IS4 Ascend ng e wrvestndicate decreastyg westerly declination and i7ere dies sue diedtast! -dastesstestocctonsn Sceitaisratireeest| tAUSUsansveHEateataneetastansedtt stantaats dS ey HH 4 Fate XU J i a |_| ie _] H I - io | | a [| i ret 7 4 |_| | | | Z a ‘a | ct 44+ 1 r 1 ae fa aeumaa | a L | [SS Faas t i] ttt tata == fa Sette ee Se i {el bd Ss a SE fsa | r. 6 | d suai ine = Oy es aoe oH gee a Ce an ‘a HEEL EE ye } ae CL % | EH Pr a ales tet td CI z one ame SSreee Sooo 9 AC asia Zens aR rs 5 SS SHO Van RA@E eS — y BED. Se05 SeeReeeees BoShew S2eeee Saha DERE IRN R PO Basan SUceeseeeeens R SEE iiss SP Sst Seaae Solel $ SREB SEA Ansa eee BES Ake eeAasee 8 3 221g RUAZIO (TL quawus WeIg2 QUpuIZLLO FT CAINE fOTCE. 1843, ical Observations. December 24,25 Term-Day Maonet 10: ae Plate XII. ay — a Sts Dbservalwons « Yukrrstowr Maugmengany Ju2UIG MLL) YDLLIZLLO TT a + woth ++ aol 1a + al i rf - iH i i yy 1 tl ie z - EEE t eer te Snes eae! =< ++ + : +— { tt : ee ‘og EEE EEE — + . i] E eH it T { | T +4 joleiaiahspetalafetafetetel 1 i I SHE GSSE t + rt } ray zi o = _puauafuaag Prise a Coe 7 Ascending Curves indreate decreasing westerky declinaleen and increasing fErce I58 Ws DIURNAL VARIATION OF MAGNETIC DECLINATION AT MAKERSTOUN 1845-1846. Trans. Roy. Soc lidin Vol. XIX, Farvil, PlateT. AM 5 5 5 Sy = ase 1630 naa Wace Ian s X MBESLCRSES Ae mae a a mbes at a es Sy — Eee a r af Peale) Gla NSIS \ Niwieas a (is SS ml TI EEE eee | el aS ie Sie. i | q SS | 2 ee alle i “ sh fp fp ) { L — bs +f —+— St 1; / ass / | | BY / %— a + A —— x 1s ake A fete alee ate 1S tS SRR Ne BRE 3 +++ \ s|- {4 \ S) iz f t ere —-b- 4 2 minutes. Seale, 1 Div. —— _ Meam of all. Mean. of undisturbed. days. Positive Ordinates indicate increasing Westerly Declination. Shy Geo Aikman a DIURNAL VARIATIONS OF THE HORIZONTAL COMPONENT OF MAGNETIC FORCE AT MAKERSTOUN 1843 —1846. A2e en eed aa - Trans. Roy. Soc Edin. Vol. XIX. Fart Il Platell r AM PM AM ; 4 ey See is ge 4 LA 23 + 5 6 beet 9°30 2 0 2 2.3 a ee «1 7 8 «Mage Maes 1a FZ | 2 3 + 7 Dec._ Feb. | i] Positive Ordinates indicate increasing Hortzontal Force. Scale, 1 Div.= 0-0004, Hor: Force =1, | —~/™ Mean of all. Po det Mean of undisturbed days. ——— Eng by GeaAcdeman eee DIURNAL VARIATIONS OF THE VERTICAL COMPONENT OF MAGNETIC FORCE AT MAKERSTOUN 1845-1846. - Trans. hoy, Soc. Edin. Vol. XIX Fart IT. Plate HT. AM See AM eee etn ee Le!) Pen) ee es Mee) Oe BS FB 8 2) MN 22 PR SG 8S 6 BGO! BO 1 r T 7 7 i oo a £ = | Dec._ Feb. Mar._ Apr. aon May,.June July, Aug. Sept.— Nov. Sept. Feb. Mar._Aug. Year Ce JB iS ca a . en We Mi aH ey Positive Ordinates indicate increasing Vertical Force. Scale, 1 Diy.= 0-0001; Vert. Force=I. Mean of all, Mean of undisturbed days. IOreiAALM V/ / v4 7 a : =< A DIURNAL VARIATIONS OF MAGNETIC DIP AT MAKERSTOUN 1843-1846. Trans. Roy. Soc. Edin. Vol XTX. PartIL Plate Iv. Mar:_ Apr. Sept. Feb. Mar:_ Aug. cS Year Dec._Feb. _ May, June _ Fuly, Aug. Sept._Nov. eee AM o Z 2 Mean | — Negative Ordinates indicate increasing Dip. Scale, 1 Div, =O-4 minutes. ~~ Mean of all. “. Mean of undisturbed days. Engi by Geodikman MSL GA SMTCHHAAM TA ARAL MTR AOAM JATOT FY WO BAO y GAN id VX eV eee 7 a ‘ ws. A wet we 2 . \h “ow 8 8 a |. ee eo - . — fe -- ‘é ee ., > 7 , oi ee 7 ok S05 4 . rs = 7 : » — = i ~/f ed a s a is r 4 ae 4 e ‘ 4 —, aa ¥ Yt ‘, ye ‘ + ¥ S f aed he a a ~ = te ons See yee > \ = Kes = <= = eas a sea iit oo if ql, + o RO ee ata >) BR a ee eR WT Gio) ME ES os AAR Tee ». 4 " : a re A eee a ‘ ye SET aes IPs DIURNAL VARIATIONS OF THE TOTAL MAGNETIC FORCE AT MAKERSTOUN 1845 -1846 Trans, Roy. Soo Edin. Vol. XIX. Part. PlateV- Mean PM AM Positive Ordinates indicate increasing Total Force. Scale, 1 Dwv-0-0001; Total. Foree Dec. feb. =1. nn Mean. of undisturbed days. pom, ae, ~~ Mean of all. Enap bey bee Ateman, ANNUAL VARIATIONS OF THE MAGNETIC ELEMENTS AT MAKERSTOUN 1843 - 1846. Trans. Roy. Soc. Edin Vol. AIL, Plate VI. Jan. Feb. Mar. Apr, May June Tuly Aug. Sept. Oct, Nov. Dee. dan, Feb, Mar. Apr. May June aie ve at ee ee ee ee Seale 1\ division =0'4 | | t | a ac ead fake — : | Declination ana | Dip Hor. Comp. ac of Force | Seale 1 div. a 22 5 } Total Force PN “EEN Annual Motions Monthly Motion i| Seale 1 division = 0'08 Scale 1 division =0'02 OF T T ab T EY T Motions of a treely suspended Dipping Needle , f watt \ ‘\ Pa ee empathy Saeed web, oy 4 5 RATA &) ane timratd ht VN 1 =~ wala, Ate 7 a ‘ 4 \ 4 \ } a j oe — \ / - } vi reeerwiites We ese hl 1 vaca Natty HE See Lidin. Vol. XIX. LartIL Plate Vi. up Trans Re KERSTOUN 1845-6. MA DIURNAL MOTIONS OF THE NORTIL END OF A FREELY SUSPENDED DIPPING NEEDLE Motions with reterence to the Moon's hour angles Eng tty Goo Hileman. i t \ - r f " ¢ / if Pes , Me ' i \ ‘ ~ Potts x“ / / ye b ‘ er 5 * ew Sy en \ ‘ ~ p tae + = eee! a 2 ‘J Pf = : mn 7 is 7 A i a a “ 7 ‘ ' } / 7 ‘ i } ta “ > cod s a ie ‘ vi * z < & . a Pe 3 , ~ 4 i a. % “ Ke ‘x \ SiS 4 i / ; ve xbiathh NaN F ) d / A Wwe Wy wwioth a4 s BAL UININ GAD AVENE ENING NAR REE Trans. Roy. Soe Edin. Vol, XTX. Lart IL Plate Vi. | West Mean East Declination West Mean East | Sale_Feol | | RPE Te | Fs Scale, [Dw OL =| ; | Sts USS 2 edhe | LA st eee | i] ea [| | T ve fe th UO ma aT Seep fi ma | | March _ August | i \} : ata | oie ee La | oy c i Mean a. Mean of undisturbed days. == Eng! by Gea Aikman Scale, 1 Div.= 0-2 minutes. x ‘, Sh Urner ie & es = ar sot on anne A a rte ann em si ae on ATE ae “a. P. ih ane = I a Np i np Sg Mh ean 5 * | eC eg <2 TRS, one 2s SA Ss? i ee aaa B ‘ on tt 2 aie ue subs eed ee 2 ™~ - 4 a ak ae a aeask < “ s ir. a a i ‘ ae . - a. i. % a ee den a * ar tp tig vs te METEOROLOGICAL DIURNAL VARIATIONS AT MAKERSTOUN 18435-1846. te eee een. ds) wis PORE ee Rom LS BE 8 NO MO TEAS De BS? we EF. 1 SR AIO i Se a ee eeeeees she =~ wit -4 Nov, Jan. at 2 ds SE a a ee Sey Mean! | —~ Temperature of the\ Air. | a wove. | Pressure of the|\ Wind Feb,_Apr. May July Mean | Year Mean Vg TESSUTEC , i | Nov. Jan. Feb, Apr. May July Year Eas Ee Ihe 2 Ate = EY Seales, Temperature of the Air, 1 Div.= 2? Pressure of the Wind ,1 Inv, =0-1 th, Atmospheric Pressure, 1 Div.-O'O1 inch, Enythy Geo Aikman Fs aM f ey 1 yt Pay hd Waray tes eeaEty Steritsreng sense Se pie Baby a i