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ASTRONOMICAL 



AKD 



METEOROLOGICAL OBSERVATIOSS 



KAOB AT THX 



UNITED STATES NAVAL OBSERVATORY 



DUBXXO 



THE YE-A.R 1868. 



PUBLISHED BY AFTHORITT OF THE 

HON. SECRETARY OF THE NAVY. 



COMMODORE B. F. SANDS, U. S. N., 



8 D F I R I M T E M D B H T . 



WASHINGTON: 

GOVEENMBNT FEINTING OFFICE. 

1871. 



TABLE OF CONTENTS. 



INTKODUCTION. 

Page. 

General Intboduction v 

The Transit Circus vi 

Description of Instrument and Adjuncts vi 

Arrangement of work with the Instmment viii 

Explanation of the printed ob8er>'ations and reductions x 

Explanation of observations to determine the zenith point correction xvi 

Explanation of corrections to star positions of the American Ephemeris x vi 

Comparison of observations made directly and by reflection xvii 

Correction to adopted latitude fi'om observations of 1868 xx 

Systematic corrections to be applied to positions observed in 1868 xxi 

Explanation of the observed positions of the Sun, Moon and Planets xxiu 

Tables and data employed in the redaction of observations xxv 

The Meridian Transit Instrument xxxnr 

The Mural Circle xxxvn 

The Equatorial xl 

OBSERVATIONS AND RESULTS. 

Summary of the principal constants used in the reductions of the observations with the Transit Circle in 1868. . 3 

Observations with the Transit Circle : 4 

Meridian Transit Instrument 156 

Mural Circle 236 

Equatorial 321 

Positions of the Sun, Moon and Planets observed with the Transit Circle, 1868 331 

Corrections to the star positions of ihe American Ephemeris, given by individual observations with the Transit 

Circle 345 

Mean right ascensions of stars observed with the Transit Instrument, 1868 365 

Mean declinations of stars observed with the Mural Circle, 1868 401 

Constants used in the reduction of fixed stars 429 

Meteorological observations during 1868 437 

List of publications presented to the Library 491 

Appendix I. Catalogue of stars observed by the United States Astronomical Expedition to the Southern Hemisphere 

during the years 1850-'51~'52. 



r 

/ 



INTRODUCTION. 



For a general description of the Kaval Observatory, and its principal instruments, reference 
may be made to the Washington Observations for 18G5. A more detailed description will be found 
in Lieutenant Gilliss's "Keport on the Plan and Construction of the Depot of Charts and Instru- 
ments, with a description of the instruments, &e.," Washington, 1845. 

Position of the Observatory, — ^The latitude deduced from the old observations with the Mural 
Circle was 38o 63' 39 ".25.* The observations from 1861 to 1864, inclusive, indicated a correction of 
— (y'A7 to this value.t The adopted longitude from Greenwich, used in interpolating tabular posi- 
tions of the Moon and Planets, is 6^ 8™ 12*.04 

Arrangement of work. — ^The system which has prevailed since the revival of the astronomical 
activity of the establishment in 1861, is still continued. Under this system, the observations with 
each instrument are directed by the officer having charge of it, who is held responsible for the proper 
performance of the work, and prepares the descriptions, explanations, and discussions of the obser- 
vations which follow. 

During the year 1868, the division of the labor was as follows : 

The Equatorial was in charge of Professor Asaph Hall, U. S. N. 

The Transit Circle was in charge of Professor Simon Newcomb, U. S. K., who was assisted by 
Professors W. Harkness and J. R. Eastman, U. S. K, and by Mr. Charles Thirion, Mr. C. 
Abbe, and Mr. E. Frisby; Mr. Frisby having received his appointment as "Aid" on Mr. Abbess 
resignation in June. 

The Mural Circle and the Transit Instrument were in charge of Professor M. Yarnall, U. S. N., 
who was assisted by Mr. M. H. Doolittle in the work of the Mural Circle. 

The Department of Chronometers remained in charge of Lieutenant Commander Andrew W. 
Johnson, U. S. N., who also superintended the dropping of thd ball at noon, and the transmission 
of time signals to the city through the Police Telegraph. 

The Meteorological Observations were made under the supervision of Professor J. R. Eastman, 
by the Watchmen of the establishment, Messrs. Thomas Hays, Dennis Horigan, and Nicholas Cahill. 

Mr. William P. Gardner, Instrument Maker, had charge of repairs of the instruments during 
the year. 

Mr. Thomas Harrison, as Secretary and Disbursing Officer, had charge of the official corre- 
spondence and accounts of the establishment. 

In its relations to the Government the Observatory is under the general supervision of the 
Bureau of Navigation. 

'Washington Obsenrations for 1845; Appendix^ p. 116. 
t Washington Observations for 1864; Introduction, p. xliv. 

I In some previous volumes this longitude is erroneously given. All the tabular positions of the Moon since 18C0 
have been computed with the adopted longitude 5^ 8™ 12".0. 



THE TRANSIT CIRCLE. 



During the year 1868 this instrument was employed on the stars of the American Ephemeris, 
the bodies of the solar system, and a few miscellaneous stars. 

CONDENSED DESCRIPTION. 

For a detailed description of the instrument, with an investigation of its constants, reference 
may be had to the Washington Observations for 1865. The following condensed description will 
suffice for the explanation of the observations and their reductions : 

The instrument is furnished with two. circles, each divided to every 2' of arc, and read by four 
microscopes. The circle on the clamp end of the axis, called circle A, has also a coarse division to 
every 10' for setting. The division is read by a single horizontal microscope of low jk) wer. The read- 
ings of the two circles increase in opposite directions, so that their sum is a constant as the instru- 
ment revolves. The microscopes on the west pier are numbered I-IV; those on the east pier V-VIII. 
The readings of the former diminish and those of the latter increase as the telescope moves from 
the zenith toward the south. Each revolution of the microscope micrometers measures 30" of arc. 

The instrument is reversible, and each circle can be fastened in any required position rela- 
tively to the telescope. 

Tfie reticule has twenty-three vertical and two horizontal fixed wires.* The latter serve only 
to mark the middle of the field. The distances of such of the vertical wires as are frequently used 
in observation were determined in December, 1865, by a modification of Gauss's method. The 
entire eye-piece was revolved 90^, so that the transit wires should be horizontal, and clamped in 
that position. The wires were then successively brought into coincidence with the image of the 
horizontal wire of the south collimator. At each coincidence the four microscopes of circle A were 
carefully read. To obtain the successive readings with rapidity and certainty, three observers 
were employed ; one remaining at the eyepiece brought the wires into position by the slow-motion 
screw of the clamp, while the others each read two microscoi>es. Four independent determina- 
tions of sets B, C, and D, and three of wires I, II, VI, and VII, were thus made. The record of 
the observations and the individual results will be found at the end of the introduction for 1866. 
The results are given in the following table, which shows the reduction for an equatorial star, from 
each wire to the mean of the nine wires selected for habitual observation. The notation of the 
actual wires is the reverse of that employed in 1867, and agrees with that employed in 1866 ; the 
numbers or letters being employed in the order of transit of an equatorial star, whether the clamp 
be east or west. 



8. 



9. 



(f. 



I 


■f 36.723 




Ci + 4.085 




Di— 8.173 


II 


+ 24.465 




C2 + 2.031 




D2 9.679 






IV 


— C3 + 0.008 


v= 


-D3 12.229 


111= 


= Bi + 12.253 




C4 — 2.025 








B2+ 9.661 




C5 4.060 


VI 


24.465 




B3+ 8.150 






VII 


^36.727 



The close wires of sets A and E being used only in exceptional cases, they were not included 
in the above determination. The adopted intervals of set E depend on a single excellent transit of 
Polaris ; those of set A on measurement with the R. A. micrometer wire. They are as follows : 



Ai = -f 30.524 
A 2 29.586 

A3 28.586 

A4 27.561 

11 = As = + 24.465 



8. 



VI ==: El = — 24.465 
B2 = — 27.533 
E3 = — 28.535 
E4 = — 29.576 
Eg = —.30.569 



Pescription of the Transit Circle, $ 32. 



TRAN8IT CIBCLE. VH 

Eye-piece Mieratneters. — A single vertical wire is moved ia R. A. by a inicrouieter-screw. It 
serves for tlie determination of coUimation error, and is sometimes used for observations of the 
transit of Polaris, when clouds prevent observations at the fixed wires. Each revolution measures 
1-.020. 

The Z. D. micrometer carries four horizontal wires. The middle two form a close pair, distant 
about 4'\6, the mean of which is regarded as the standard middle wire. The other two are placed 
at a distance of about ten micrometer revolutions on each side. That nearest the micrometer head 
is called wire A ; the other wire B. 

The readings of both micrometers increase as the wires move from the head, and the position 
of the head of the Z. D. micrometer is such that an increase of reading is subtractive from the read- 
ing of circle A, and additive to that of circle B. When the observer looking into tlie telescope has 
circle A on his right, the micrometer head is below the eye-piecti. During 1868 this was the posi- 
tion when the telescope pointed north and the observer looked north. 

Collimators. — The instrument is furnished with two collimators, of which the object-glasses 
have each 2^ inches aperture, and 35 inches focus. Each end -of a collimator projects 6 inches 
beyond the supporting pivots, which are only 23 inches apart. The collimators are interchangeable 
in position. Each is furnished with a delicate spirit level, by which its axis of sight may be lev- 
eled. Collimator A has in its focus a pair of wires 10'' apart in one direction, and a single wire 
crossing them. Collimator B is furnished with a simple pair of rectangular cross wires. 

Each side of the central cube of the telescope is pierced with a circular opening 2J inches in 
diameter. Eaeh opening is closed by a cap which screws into it. By unscrewing the caps and set- 
ting the telescope vertical, the wires of either collimator may be seen through the other. 

The Sympiesotneter. — This instniment was made by James Green, of New York. Its use is 
designed to lessen the number of observations and computations necessary in the determination of 
the correction to the refraction on accx)unt of the density of the air. It consists of a vertical tube, 
the top of which expands into a bulb, while the bottom is bent round in the form of a letter XJ. 
The large arm or cistern of the U holds sulphuric acid, and is closed by connection with an air-tight 
bag of oiled silk. The rest of the tube contains air. The quantity of air is so adjusted that in the 
hottest weather it nearly fills the vertical tube, while in the coldest w^eather the acid rises nearly 
to the bulb. If, now, the density of the fluid were zero, the density of the air within the bulb and 
tube would be the same as that of the external air. And, at all zenith distances at which it is 
worth while to observe for the determination of star positions, the refraction may be regarded as a 
function of the zenith distance and the density of the air simply. But, the sulphuric acid being 
quite a dense fluid, its height in the tube of the sympiesometer will be a function of any two of the 
tiiree quantities, barometric pressure, temperature, and density of the external air. Since the datum 
wanted is the density of the external air, we shall express this density as a function of the height, 
of the sympiesometer and barometer. Let us use the following notation : 
B = height of barometer. 

r == temperature, counted from the absolute zero. 
D = actual density of external air. 

Do=: density of air when the surfaces of the fluid in the tube and in the cistern are on the same level. 
c = constant of elasticity of air. 

{ = total capacity of tube and bulb, counted from the point at which the surfivces of the acid in the 
cistern and tube are on the same level, measuring that capacity by the length to which it 
would be necessary to extend the tube in order that it might hold a« much as the bulb. 
h = height of internal surface of acid, counted from the same point with /. . 
a = specific gravity of acid, increased in the ratio of the bore of the tube to that of the cistern, 

specific gravity of mercury being unity. 
B'= pressure of the confined air, in inches of mercury. 

Then from well-known properties of elastic gases we derive the equations 

B=-cDr 

I 



B'=cDoT 

I — h 

B'=B-aA 



Vra INTBODUCTION. 

From the last two equations 

Sabstituting for r its value from the first equation, we find 

D-D ' ^^ 

Thus, D is expressed as a function of the height of the fluid in the sympiesometer, and of the 
height of the barometer. Let us put B=Bo+i?, Bo being the mean height of the barometer, and 
fi its small changes. Then developing to the first powers of i? we have 

B _ Bq ahtS 

B — ah ~^ Bo — ah (Bo —ah)^ 

To estimate the value of the last t4?rm of this equation we remark^that 

The value of a is, roughly, about i 

The value of /5 seldom exceeds, during fine weather ± 0.4 in. 

The value of h rarely exceeds 8 inches. 

While we may imt Bo =^ 30.15 

Consequently, the last term of the equation will rarely amount to ^ooo) ^^^ ™*y therefore be 
neglected, except in rare and exceptional cases. ^S'eglecting it, we find 

Bo mo 

^ — (n,—ah){l — h) 

so that the density of the air is ex[)ressed as a function of the observed height of the sympiesome- 
ter, and of determinable constants. 

Considering, ho>vever, that it ^vas doubtful whether the invariableness of a and Do could be 
relied on for long intervals of time, it was deemed best not to attempt the direct determination of 
D, but to graduate the scale of the sympiesometer by comparison with the results of the thermome- 
ter and barometer. A scale was attached to the sympiesometer, the reading of which gave an 
approximation to the logarithm of the density of the air, the density at 20 inches and 100^ being 
unity. A table of corrections to this scale was deduced from comparisons with the barometer and 
thermometer, at various densities of the air. 

USE OF THE TRAJISIT CIRCLE. 

Position of Axin. — The plan of work with the instrument contemplates its reversal at the 
beginning of each calendar year, and the use of a single circle in an invariable position, with a 
single set of four microscopes during each year. In the alternate years in which the axis is in the 
same position, the position of the circle used will be so changed that the polar distances of the 
stars will depend on different circle divisions in different years. It was therefore reversed at the 
beginning of the year 1868 so as to bring circle A and the clamp to the east. 

Arrangement of Ohservers. — As a general rule one observer is charged with all the observations 
to be made during a definite twenty-four hours, which is considered the "observing day." The 
regular observing day begins at 9 o'clock a. m., but when a special observation is to be made at an 
earlier hour in the morning, the observers may arrange among themselves to have the tour of duty 
commence earlier. An isolated observation occurring at an inconvenient hour for the regular 
observer of the day, is frequently assigned to another. 

Mode of Observing, — The telescope is set so as to bring some division of the circle under or near 
the zero of the microscopes. The subdivision of each 2' of zenith distance thus depends entirely 
on the Z. D. micrometer. The bisections of a star in zenith distance are usually made as it crosses 
wires. I, II, VI, and VII, by bringing its image midway between the middle pair of wires of the 
micrometer. Before each bisection the micrometer is drawn back so that the bisection shall always 



• 



TRANSIT CIRCLE. IX 

be made by moving the micrometer-screw forward. Bisections of stfirs whose polar distance is 
between 5^ Jind 20^ are frequently made at wires Bi, B3, Di, and D3. Stars within 5^ of the pole 
are usually bisected at the wires of set 0. In the case of very faint objects, it was found impossible 
to bring the images between the close wires with accuracy, and such objects are therefore usually 
bisected with wire A or B. The micrometer readings are recorded after the obsei'vation is com- 
pleted, by means of self-registeribg indexes.* 

The transits of stars more than 5^ from the pole over sets B, C, and D, are recorded by the 
electro-chronograph. Stars within 5° of the pole are observed by eye and ear, generally over the* 
wires of setC, using the beat of the chronograph pen. 

It will be seen that by the adopted method of observation of quick moving stars, the attention 
of the observer is occupied with the determination of but one co-ordinate at a time. 

In the case of the sun the transit of the first limb is observed over the usual wires. The 
telescope is then clamped on one of the horizontal limbs, the image of which the observer brings 
between the micrometer wires at vertical wires I and II, white a second observer reads the micro- 
scopes. The telescope is next clamped on the opposite limb, which is measured at vertical wires 
VI and YII, while the second observer again reads the microscoi)es. The telescope is then 
undamped, and the transit of the second limb observed as usual. 

When the second limb of the moon is to be observed, the circle reading for the full horizontal 
limb is computed beforehand, the circle is set accordingly, and the microscopes are read before the 
moon enters the field. Five measures of the limb, if practicable, are then made as it crosses the 
field. The telescope is immediately undamped and set on the second limb, the transit of which is 
observed in the usual way. 

Arrangement of Clocks and Chronograph, — All the observations are recorded in time of the Kes- 
sel's clock. This dock has a gridiron pendulum, and its rate is tolerably regular. Its beats are 
recorded by a galvanic current in the way heretofore employed at this Observatory. To avoid any 
possible effect upon its rate, the mercurial connection is made near the middle of the rod, and the 
globule of mercury is made adjustable by being forced up from a small reservoir by a screw. It is 
kept quite small, and of such a height that the knife-edge just grazes its surface without causing 
any sensible vibration of its mass. 

In February, 18G7, fearing a possible diurnal inequality in the clock rate during the summer 
months, arising from the diurnal change of temperatui'e to which it woukl then be exposed, the clock 
was taken from its place in the superintendent's room and placed in a niche in the base of the pier of 
the great equatorial. The diurnal inequality of temi)erature is here insensible, and the annual 
inequality small. During warm weather it is exposed to dampness from condensation of the 
moisture in the air. To guard against this it was surrounded by quicklime. . Unfortunately this 
substance was found, in slacking, to diffuse itself in the form of an impalpable dust, which pene- 
trated the clock case, and settled on the wheels. Its use had therefore to be discontinued, and 
chloride of calcium to be substituted. 

In the observing room is placed a " counting clock,'' regulated to run with the Kessel's clock, 
and thus serve to indicate the second corresponding to each beat of the latter, as indicated by the 
chronograph pen. It is adjusted every day, on commencing observations, to beat coincidently with 
the chronograph pen, but the sound of its beat is never employed in observation. 

The transits are recorded on the cj^linder chronograph, described in previous volumes of the 
observations. At each interval in the observations exceeding ten or fifteen minutes, the chrono- 
graph is stoi>ped, and the hour, minute, and second of the last beat is taken from the face of the 
counting clock and marked on the sheet. It was also intended that at least one other such indica- 
tion of the clock beat should always be marked on the sheet while the chronograph was still run- 
ning, but in this the observers were frequently remiss. Errors of 1® or 1°" in the record therefore 
occur occasionally. 

Determination of Error of Collimatmu — This constant is determined from the opposing coUi- 
mjvtors, without reversal of the instrument. The covers of the opening through the cube of the 
telescope being removed, the latter is set on collimator A. One Y of the collimator is then so 



* Description of the Transit Circle, J 30. 
II 



X INTRODUCTION. 

adjusted in azimuth that the middle wire of the teh\sc*opo Hhall be about uiidway l)etweeu the 
images of the parallel wires of the collimator. The observer .can make this adjustment by viewinff 
the reticule of the telescope through the collimator. The small deviation of the middle wire of the 
telescope from the mean of the collimator images is then measured with the K. A. micrometer. 
This measure is made by first so setting the micrometer wire.that the mean of it and the fixed wire 
Khali coincide with the mean of the images, and then moving it so as to coincide with the fixed 
wire. The required deviation is then one-half the space passed over. If, as is generally the case, 
the movable wire is almost in contact with the fixed one at the first setting, it is moved to an equal 
distance by estimation on the other side of the fixed wire. The required deviation is then one- 
fourth the space passed over. 

The telescope is then pointed toward the zenith, and the observer brings the vertical wire of 
collimator B midway between the parallel wire images of collimator A. 

The telescoi)e is then pointed on collimator B, and the double distance of its wire image from 
the middle wire of the telescope is measured by first setting the movable wire so that the image 
shall be midway between it and the fixed wire, and then making it coincide with the latter. If, 
however, the image is very close to the wire, the first setting cannot be made with precision. In 
this case the telescope is clamped, and one of the single wires of the Z. 1). micrometer is set alter- 
nately above and below the image of the horizontal collimator wire at a distance equal, by estima- 
tion, to that of the vertical fixed wire from the vertical image. 

The telescope being again pointed toward the zenith, the observer looks into collimator A, and 
sets it independently on collimator B. Another set of measures is then made like the first. The 
mean result of the first and last set is taken as the concluded distance of image A from the middle 
wire. 

Error of Level. — Two modes of determining this constant may be employed, namely — 

(I.) Measurement of the distance between the middle wire and its image reflected from mer- 
cury when the telescope is pointed toward the nadir. This method was not used during the present 
year. 

(2.) Use of the sprit level. In each determination by this method four readings of the level 
are made, the latter being reversed between each i)air of readings. The constant difterence in the 
results of the two methods seems to be verv small. 

The separate results of the individual determinations of coUimation and level errors are given 
at the end of this introduction. 

Zenith Point Correction, — During the year 18G8, this constant was determined by observations 
of nadir point. 

The use of the collimators for this purpose was entirely discontinued after June 1, 1<S(>7, it being 
found that the nadir observations could be made in the day time nearly as well as at night. The 
process was the same as that described in the previous volume.* 

In observations of the nadir point, the microscope micrometers are read both before and after 
the measures with the Z. D. micrometer. The reading of the latter for coincidence of the close 
pair of wiies with their reflected images is deduced from pairsof readings when the wires are so 
set that a reflected image is seen alternately north and south of a wire at a distance e<iual by esti- 
mation to the distance between the wires, or from similar pairs made when the wires and their two 
images form three equidistant spaces. Generally, two determinations are made by each method 
and the mean of the results used. 

EXPLANATION OF THE PRINTED OBSERVATIONS AVITH THE TRANSIT CIRCLE. 

General Remark, — In printing the observations the rule has been adopted to print every obser- 
vation exactly as recorded by the observer, without alteration in any case whatever, and without 
addition, except in very rare cases, which are noticed at the foot of the page. If a record seems 
erroneous, the error is pointed out in the foot-notes if it appears neceSvSary so to do. Where there 
is no reasonable doubt of the nature of an error, a corresponding correction is introduced at such 
stage of the reductions as is most convenient. It has not been found practicable to adhere to any 
invariable rule respecting the point of introduction of the correction. 

* Washington Observations for 18615. Introduction, p. x. 



TRANSIT CIRCLE. Xi 

Detailed Explanation. — The first three columns need no explanation. 
Column " Observer^ gives the initial of the obsen^er, as follows: 

y. — ^Professor S. Newcomb . 

H. — Professor A. Hall. 
Ha. — Professor William Harkness. 

E. — ^Professor J. E. Eastman. 

T. — Mr. Charles Thirion. 

A. — Mr. Cleveland Abbe. 

F. — Mr. Edgar Frisby.. 
Column " Weight^ indicates the quality of the observation as estimated by the observer. The 
weights are arranged on a scjile from 1 to 5 as follows: 

1 indicates a very bad or unsatisfactory ob«5ervation. 

2 indicates a poor one. 

3 indicates an average one. 

4 indicates a good one. 

5 indicates a very good one. 

The weights depend mainly upon the definition, steadiness, and distinctness of the image. 
When two numbers are given in this column the first refers to the observation" of transit, the 
second to that of zenith distance. 

Seconds of Transit over ^Yir€8. — In the case of stars more than 5^ from the pole, the times of 
transit usually recorded are those over the nine wires Bi to B3, C2 to C4, Di to D3, which are regarded 
as tlie wires for reguhar observation. If the observation is irregular the wires observed can nearly 
always be inferred from the intervals between the transits. A frequent case is that of a transit 
over set C, and only one of the sets B or D. The former is then pushed a^ide one column from the 
middle to make room for the latter, so that a transit over B and C is found in columns I to VIII, 
and one over C and I) in columns II to IX. Stars within 5° of the pole are observed by eye and 
ear, generally over the five wires of set C. The seconds are then found in columns III to VII. 
Transits below the pole are recorded in an order the reverse of that actually observed, so that any 
one wire is found in the gau^e column it would occupy if the transit were above the pole. 

Mean ^yire» — The imaginary w^ire to which all the observations are reduced to find the times 
given in this column is the mean of the nine regular wires mentioned above. When these wires are 
all observed their mean is taken. In other eases each wire is reduced separately and the mean of 
the reduced times taken. In most cases these reductions are facilitated by Tables I and IP, which 
give for each standard polar star, and for each degree of N. P. D. exceeding 30°, the reduction from 
each individual wire frequently used to the standard mean wire. In broken observations of the sun 
and planets, this reduction is further corrected for motion of object in R. A., as given in the Ephem- 
eris. In the casft of the moon the reduction is computed from Tables III and IVt, which are founded 
on Airy's formula. Table III gives, for the latitude of Washington, the logarithm of the factor 

sin }) 's Geoc. Z. D. 
sin ]) 's App. Z. D. 

Table IV gives the logarithm of the factor 

60m. + I,i . \ 

I being the increase of the moon's mean time of transit in one hour of terrestrial longitude, as 
found in section "Moon Culminations" of the American Ephemeris, and a the ratio of acceleration 
of sidereal on solar time. 

Correction for Instrument. — In this column is given the sum of the corrections for collimation, 
level and azimuth. The table of adopted instrumental constants will be found at the end of the 
introduction. (Table A.) 

In the first column of this table we have the mean date, and, where necessary to the identifi- 
cation of short intervals, the tenth of a day. Where ho tenth is added, the day commences with 
the tour of duty of the observer, generally about 3^ earlier than the commencement of the astro- 
nomical day. The constants for ;ith day at 21^ mean time will therefore be found in the line n + 1. 

* Found in the Washington Observations for 180f5, pp. xxix and xxx t Ibid. J 



XII 



INTRODUCTION. 



Coliinm € gives the adopted constant of collimation, concluded from the observations of colli- 
mation error, already explained, and corrected for diurnal aberration. This constant is a function 
of the temperature, decreasing Ijy 0^01 for every rise of 3^ Fahrenheit in the temi)erature. The 
adopted constants are therefore made to depend on the mean temperature of the atmosphere during 
each day, roughly derived from the 3Ieteorological Journal. 

Column b gives the adopted level constant derived from tlie 8ei)arate observations of level 
already explained. Wlien transits of the reflected images of stars are observed, it is essential that 
the level constant should be known with precision, in order that they mny be compared with tran- 
sits observed directly. The level error has tlierefore been determined witli more care on the dates 
of such observations. 

Column a gives the adopted horizontal aziniuth of the instrument. It has been derived almost 
entirely from the observed transits of the standard polar stars, Polaris, o Ursie Minoris, and X 
Ursa^ Minoris in the following way : 

If double transits of any of those stars were observed by one observer, the azimuth generally 
depends on them alone. When no such pair of transits was available, the azimuth is the mean 
result of all the single transits. The computation was, in all cases, conducted as follows: the time 
of each observed transit to be used for azimuth was lirst connected for collimation, level, and clock 
error. A sufficiently close value of the latter correc^tion was derived from transits of equatorial 
stars. The time of transit thus corrected w%as compared with a computed right ascension of the 
star. On discussing the observations of the two years previous, it was fouml that there were well- 
marked personal differences between the right ascension of Polaris deduced from the work of the 
different ol)server8. The computed right ascensions were therefore obtained by applying to the 
positions of the American Ephemeris corrections depending on tlie observer, as shown in the fol- 
lowing table. In the case of Ha, E, and F, no data for the correction were available; the correc- 
tion employed is, therefore, that deemed nearest the absolute truth. 



• 

Observer. 


Polaris. 


A Urs. Min. 


51 Cephci. 


N 

Ha., E., or F. . 

T 

A 


J. 
-f 0.8 
-h I.o 

-f 2.2 
+ I.I 


s. 

- 0.4 
0.0 

+ 0.6 

• • 


s. 
-h 0.6 
-f I.o 
4- 1.6 
-H o.g 



>. Urs. Min. 



s. 
— 0.4 

0.0 
4- 1.2 



The difference between the corrected time of transit and the computed right ascension of the 
star was considered as due to azimuth, a value of which constant was deduced by multiplying the 
difference by the proper factor. Incase of a pair of opposite transits, the mean result is adopted 
for the day. This mean is nearly independent of the adopted right ascension of the star, since a 
change in this element will produce opposite and nearly equal effects upon the two azimuths. 

In a very few cases the tabular positions of £ Ursaj Minoris were used in the computation of 
azimuth. 

Among the printed azimuths those which depend on adopted right ascensions and those which 
are interpolated from other days are distinguished by being inclosed in brackets. Where a varia- 
ble azimuth is employed, the coefficient of t to the right of the azimuth column shows the daily 
change. This change being necessarily somewhat uncertain, it is found convenient to use an 
aliquot part of the number of hours in a day in the adopted values. The dates " t^ for azimuth ^ 
show the mean day and tenth of a day and the sidereal hour to which the value of the azimuth in 
column a corresponds. 

Table V* gives a condensed summary of factors by which the instrumental constants must 
be multiplied to obtain the correction to the time of transit, which will serve for the general pur- 
pose of verification. The tables in actual use are much more extensive, giving the required cor- 
rections for each degree of Z. D. and each .01 of the instrumental constants. 



* Found in Washington ObservationB for 1806, p. xxxii. 



TRANSIT CIECLE. 



xm 



The Apparent Clock Correction is given only for direct observations of stars of the American 
Ephemeris within 4(P of the equator. It is found by subti^acting the sum of columns mean tcire 
and imtrument fi'om the computed apparent right ascension of the star. The latter is found by 
applying to the positions of the Ephemeris the corrections derived from the four years' observation 
with the transit instrument, 18G2 to 18G5 inclusive. They are found in Table B. 

Adopted Clock Correction. — The apparent clock corrections derived from all the observations 
made by one observer in the course of his otserviug day are added up, and the mean taken. This 
mean is supposed to correspond to the mean of the times of observations. Both means are given in 
table C, which also exhibits the computations of clock rate. The first column of this table gives 
the mean date, to which is added the tenth of a day when the time falls in the forenoon. The next 
two columns give the mean sidereal hour to the nearest tenth, and the mean clock correction. The 
small letters after the latter indicate the observers from whose observations the corrections were 
derived. In the next column the means are corrected for personal equation, and, in some instances, 
errors of an integral number of seconds in the counting clock. 

The personal equation is derived from all the observations made during a period of three or six 
months. Equations of condition are formed by interpolating two corrections depending on the same 
observer at an interval not exceeding three, or, at the utmost, four days, on the supposition of a 
uniform rate, and comparing tlie interpolated values with the corrections given by other observers. 
The uniformity of the clock rate was such that all needful accuracy could be obtained by this 
method. The corrections to be applied to the clock corrections to reduce them to a uniform stand- 
ard were thus found to be as follows: 



January i to June 9 . . . 
June 12 to September 18 . 
September 19 to December 31 



N. 


H. 


Ha. 


E. 


T. 


A. 


F. 


s. 


s. 


s. 


s. 


s. 


J. 


s. 


— 0.04 


0.00 


0.00 


0.00 


4- 0.06 


— 0.04 


• • 


-h 0.05 


• • 


4- 0.05 


— 0.17 


+ 0.04 


• • 


-h o.oi 


— 0.03 


— 0.08 


0.00 


— 0.07 


+ 0.06 


• * 


-f 0.03 



In the next column we have the daily rates for the intervals of the determinations, which are 
found by dividing the changes of reduced correction by the intervals. 

Next, we have adopted daily rates for each series of observations, which are derived from the 
observed rates preceding and following. In this determination a greater weight is given to a rate 
depending on an interval of one day than to one depending on a greater or less interval. Moreover, 
where there is much uncertainty in the rate, preference is given to multiples of 3 or 6 in adopting 
a rate. 

Tlie Adopted Cloclc Corrections are obtained by carrying the mean error for the observer forward 
or backward through his series of observations with the adopted rate. The occasional corrections 
for isolated observations are obtained by interpolating the corrected error between the nearest dates 
on each side, and applying personal equation. 

The Apparent Right Ascension is formed by applying the adopted clock and instrumental cor- 
rections to the time of transit over mean wire. It is, therefore, in all cases the right ascension of 
that part of the object actually observed. 

Column Miscellaneom Corrections gives — 
a. In the case of stars whose apparent positions are given in the American Ephemeris, the cor- 
rections to the right ascensions in the Ephemeris given by the observation. 
/?. In the case of other stars, the reduction to the mean position for the fictitious epoch 1870.0. 
This reduction is computed with the constants of precession, nutation, and aberration employed 
in the American Ephemeris, and no proper motion is applied. 
;'. When only one limb of a planet is observed, the sidereal time of its semidiameter passing the 
meridian, as taken from the American Ephemeris, is given in this column. 

Passing now to the right-hand page, the first column contains the number for reference. 

During the year 18G8, the clamp-circle A, by which the instrument had to be set, was turned to 
the east, while the circle accurately read was to the west. The reading of the first circle, A, was 
approximately Z. D. 8. minus four minutes, while the other read Z. D. N"., the sum of the two read- 



XIV INTBODUCTION. 

ings being always 359^ 5G'. As it was desirable to have the circle readings employed in computa- 
tation always increase toward the 'south, the printed circle division is not that of circle B, but of 
circle A, which, as usual, is nearly always a certain even number of minutes. If the circle division 
here recorded be C, the divisions of circle B on which the microscope micrometers were actually 
set will be — 

Of o 

For microscope I, 359 56 — — 45 ; 

For microscope II, 359 56 — C + 45; 

For microscope III, 359 56 — C + 135 ; 

For microscope IV, 359 56 - C + 225; 

the reading for the horizontal microscope, generally used as the argument, being 359^ 56'— C. 

Next w^e have the readings of the micrometers of the four microscopes of the west pier. As it 
w^as always intended to set the circle so that these micrometers should read 10 revolutions and some 
small number of seconds, their entire revolutions are not generally recorded unless their reading 
falls without the limits of 9r. 20" and lOr. 20". 

The next six columns give the readings of the zenith distance micrometer. The entire revolu- 
tions are deduced from the position of the double movable wii-es on the toothed scale in the focus 
of the telescope. The center of the field, as marked by the double fixed wires, corresponds to 30 
revolutions. Columns 1, 2, 3, 4, and 5 give the thousandths of a revolution, as read from the 
micrometer head for the different bisections of the object iSy the micrometer. The vertical wires at 
which the bisections were made may be inferred as follows : 

For stars of more than 20^ polar distance the columns 1-5 correspond to wires I, II, IV, VI, 
and VII. 

For stars within 5^ of the pole they refer to wires C1-C5. 

For stars between 5^ and 20^ polar 'distance they refer to wires Bi, B3, IV, Di, and 1)3, when 
the observer was N, and to wires I to VII in the cases of other observers. But the wires in question 
were nearly always indicated by the observer, and his indication will be found in the footnotes, the 
words "bisections at sets B and D" indicating that they were made at Bi, B3, Di, D3. 

When the bisections were not made at the regular wires, a note will be found at the foot of the 
page stating at what wires, or a£ what minutes and seconds of clock time, the bisections were made. 

The zenith point correction is derived entirely from the last column in the observations of the 
nadir point and collimators, the varying correction being interpolated between the times of its sepa- 
rate determination in such a. way as to give its most probable value for each celestial observation. 
If the difference of consecutive determinations, or between three determinations on the same day, 
did not amount to half a second, the mean result was generally used throughout. When the differ- 
ence exceeded this amount, the varying series was made to approach each determination within an 
amount which increased with the discrepancy of the determinations. 

The apparent zenith distance south is formed of the sum of the following quantities: 

1. The mean circle reading taken equal to the expression 

Circle division A + ( lOr. 10" — M ) 

M being the mean reading of the microscopes, and lOr. 10" a conveniently assumed arbitrary num- 
ber, eliminated through the zenith point. 

2. The correction for mean reading of zenith distance micrometer. The value of this correction is 

E (M — 30 rev.) + 4' 

E being the value in arc of one revolution of the micrometer, and M the mean micrometer reading. 
The constant 4' is added to make the correction positive. This correction may be deduced from 
Table VI of the preceding volume by subtracting the result from 7'. 

3. The reduction to the meridian on account of deviation of the path of the star from a great 
circle. This correction depends upon the polar distance of the star and its hour angle, or the ver- 
tical wire at which it was observed. It was taken from Table VIII,* to which is added the constant 
1".80 to make it generally additive. When the bisections were made by clock time, the correction 
was taken from the tables in the Appendix to the Washington Observations for 1845. 

4. In the case of unsymmetrical observations, the corrections for inclination of wires and motion 

* Wanbington Observations for 1806, p. xxxiii. 



TRANSIT CIRCLE. 



XV 



of object. The inclinatiou was determiued from time to time by comparing tbe uiicrometer read- 
ings of great numbers of stars at the first and last vertical wires. It was undisturbed and sensibly 
constant during the year. Its amount is given on page 3 of the " Observations." 

5. In the regular cases in which wire A or B was used, the corrections for the distance of these 
wires from the middle pair. These corrections are found on page 3 of the " Observations." 

6. The zenith point correction in the preceding column. 

At the beginning of 1867 the heads of the microscope micrometer screws were so adjusted that 
the mean correction for i)eriodic inequalities of the screws should be very small. This correction 
was therefore not afterward applied. 

The corrections for flexure and division errors arc not applied in the reductions, it being 
intended to apply them once for all to the concluded mean places of the stars and the apparent 
places of the planets. 

The next column gives the reading of the sympiesometer. The readings of the external ther- 
mometer, barometer, and its attached thermometer, corresponding to occasional readings of the 
sympiesometer, and serving as a check upon it, are found at the foot of the page. 

A series of these readings is selected from time to time, and the correction to the logarithm of 
the refraction depending on the barometer and thermometers is computed. from each observation 
by means of the refraction tables found in the Ai)pendix to the Washington Observations for 1845, 
using only four i)laces of decimals. Each result is compared with the corresponding reading of the 
sympiesometer, to obtain the correction to the latter. The following mean table of corrections was 
formed by a curve from several months of observation, and used throughout the year, no change 
being found in the instrument. 



s. 


Correction. 


S. 


Correction. 


200 


+ 10 1 


600 


+ 5 


250 


9 


650 


6 


300 


8 1 


700 


7 


350 


6 


750 


8 


400 


5 


800 


9 


450 


4 


850 


10 


500 


3 


900 


II 


550 


4 


950 


II 



The reading of the sympiesometer being corrected from this table, we have the correction to 
the fourth place of decimals in the logarithm of the refraction depending on the density of the fiir. 
The mean difference between the results of the sympiesometer and the barometer and thermome- 
ters is about 0.0004. 

The apparent north polar distance is formed by adding the apparent zenith distance south, 
corrected for refraction to the colatitude in case of a direct observation, or subtracting it in case of 
a reflection observation. The adopted colatitude is 

510 6' 21".2. 
The column of miscellaneous corrections contains the following quantities : 
a. In case of stars of the American Ephemeris, the apparent correction to the north polar distance 

there given. 
,3. In case of other stars the reduction of the apparent north polar distance to the mean north polar 
^ distance at the fictitious epoch, 1870.0 — using the constants of the American Ephemeris, and 
omitting proper motion. 
^. In the case of planets other than the Moon, the correction for parallax, in computing which 
the Sun's mean equatorial horizontarparallax has been taken equal to 

8".85. 
In the case of the Moon the corrections for parallax and semidiameter will be found at the foot 
of the page. They are both comi)uted from the data of the American Ephemeris, pp. 341-344, the 
adopted formula for parallax being 

sin p' = [9.999430] sin - sin (Z. P *M)n — 11' 14".5j 

p =p' i dp. 
It being the interpolated value of the ' * 1 p ^l correction taken from 

Table XI of the Appendix to the W. *) 



XVI INTRODUCTION. 

OBSERVATIONS OF THE NADIR POINT MADE TO DETERMINE THE ZENITH POINT CORRECTION OF 

THE TRANSIT CIRCLE. 

The first column gives the mean day and tenth of a day, and the sidereal hour. The time of 
observation is thus, as a general rule, fixed within an hour. Failures on the part of the observer 
to record the exact hour are, however, very frequent. 

In column "Object" '^Nfidir'' signifies an observation of the nadir point made by measuring 
the position of the reflected image of the zenith distance micrometer wire, when the telescope is 
pointed downward over the mercury basin. 

The readings of the microscope micrometers are those taken from their lieads when their wires 
are set on the divisions corresponding in the case of the nadir to 180^ 0' of the west horizontal 
microscope. 

These divisions are reallj- 45^, 135^, etc., but for convenience the reading of the horizontal 
microscope is used as the fundamental argument. The printed readings are the mean of the two 
readings usually made. 

The readings of the zenith distance micrometer are those which correspond to coincidence of 
the mean wire with its reflected image, determined in the way before described. 

A correction of one quarter of a revolution has to be ap[)lied to these readings, because the index 
read was distant a quadrant from that employed in celestial observations. 

CORRECTIONS TO THE RIGHT ASC^ENSIONS AND NORTH TOLAR DISTANCES OF THE AMERICAN EPHEME- 
RIS, GIVEN BY INDIVIDUAL OBSERVATIONS OF STARS WITH THE TRANSIT CIRCLE. (P. 341-;r.9.) 

Here are found (1) the date of each observation, and (2) the initial of the observer. The latter 
is given to facilitate any discussion of personal i)eculiarities. 

Kext follows the correction to the right ascension. This is coi»ied without change from the last 
column of the left-hand page of the observations. In the case of clock stars, it is not put down 
unless it depends either on three other clock stars, or on one or two stars distant more than six 
hours in right ascension. 

In this and the following columns a colon signifies that the result is doubtful ; and r that it is 
rejected on account of discordance, and the fraction J that half-weight is assigned to it in taking 
the mean. 

In the next column we have the correction to the polar distance, also copied from the last 
column of the observations, wichout change except fcn^ erroneous micrometer revolutions. 

• The mean corrections in K. A. and N. P. ]). are taken without applying any correction what- 
ever. The results thus found for !N. P. I), still require the following corrections, which were not 
applied in the reductions: 

1. For error of division. 

2. For flexure. 

3. For possible constant error in zenith point. 

4. For error of assumed latitude. 

The correction for error of division may be deduced from the table for circle B, given in § 72 
of the description of the Transit Circle, the argument of the table being 

510.1 + Dec. - t X 90O , ^ ,• , , 
^.^^ ^r ^ ^ . r^i^^^ For direct observations, 
or oio.l — N. P. D. + i X 90^ 

and 380.9 - Dec. + i x 90o , ,, ^ ^. 

^x T^ T^ . ^r^rs ^ I^^i' reflection observations, 
or 380.9 -f N. P. D — t X 90^ 

t being a whole number to bring the argument into the first quadrant. From this table, the cor- 
rection for the nadir point, corresponding to ISO^ of the finding microscope, comes out +0''.30. 
As this correction has not been applied, it must be subtracted from all the division corrections. 
Since the circle reading increases from the zenith toward the north, the sign of the correction to 
N. P. D. must be changed for direct observations, and left unchanged for reflection observations. 

The concluded correction for division is under the mean "correction totheephemeris" for each 
star. Under this again, in the line Flex, &c., is given the sum of all the other systematic correc- 
tions. As one of these corrections is derived from a comparison of the direct and reflection obser- 
vations, the next step will be the discussion of that comparison. 



TRANSIT CIRCLE. 



xvn 



This comparison is conducted ou the same plan iis in the two former years. In cohimn D we 
have the result of the direct observations, corrected only for error of division. The small figure 
following each result indicates the weight, which is computed from the formula 



Wt. = 



17 n 
M + 16 



n being the number of observations. The only remaining known instrumental errors which qan 
affect D— E are that part of the flexure which depends on the sine of the zenith distance, and the 
curvature of the level surface, by reflection from which the star is observed. These have the same 
values as in 1867, and are as follows: 



8. 



Flexure correction to Direct results . . +0.06 sin Z. 

Flexure correction to Reflection results . —0.06 sin Z. 

Curvature of level in Keflection results . +0.16 sin Z. 

Total correction to Keflection results . . +0.10 sin Z. 

Correction to I) - K -0.04 sin Z. 

The values of this last correction are found in the column '-Sine Flex., etc.," the corrected 
value of D— R and the weight of the result in the two columns following. 



COMPARISON OF NORTH POLAR DISTANCES, FROM OBSERVATIONS MADE DIRECTLY AND BY 

REFLECTION DURING i868. 



Star. 



NORTH STARS. 



Polaris, S. P. 
Polaris . 



9 



Cephei 
Cephei . 
Draconis 
Ursa; Minoris 
Ursa Minoris 



79 Draconis 
V/* Draconis 
II Cephei . 
K Draconis 
A Draconis . . 
.? Cephei . 
<j Draconis 
J Draconis 
« Camelopardi 
t Cephei . 
a Draconis 



rt Urssc Majoris 

a Cephei . 

a Cassiopeae . 

y Ursae Majoris 



Y 

V 
a 

I 

T 

a 
a 



Draconis 

Ursa; Majoris 

Persei 

Ursae Majoris 

Herculis 

Aurigae . 

Cygni . . 



Z. D. 



322 
322 
322 

323 
324 

326 

327 

328 

328 

329 
329 
330 
331 
333 
333 
334 

336 
336 
343 
344 

347 
349 
350 
350 
352 
353 
354 



307 - 

310 '-+- 



-h 






-h 






I 



+ 



D. 



0.2914 
o.o7u 

o.72e 
0.213 
1.683 

2 . 72ft 



- ! 



0.60,, 
0.624 
0.223 
2.20-J 
2 . 260 

I. 173 
2.43' 
0.553 
0.18:3 

1.674 
2.2I3 

1 . 7OJ 

0.380 

0.795 
I.IOw 

0.647 

o.73e 
0.693 

0.737 

0.2I.S 
1.464 
I.I5n 



R. 



0.863 
0.603 

2.203 

2.863 
0.82. 

2 . 623 

- 2.784 

2.6I5 

1.734 

- 2.574 
2.103 

2.503 

- 4 . 47-. 

- 4 . 32j 

- 3-453 
1.074 
2 . 463 

- 3 • 305 

1.724 

- 3.565 

1 . 2(>j 

!- 0.67: 

' — 1 . 404 
'- 1.325 
2.983 
1.293 

- 1.53: 
0.864 
1 . 264 



4- 



I 
+ 

I 

I 

i + 

+ 
4- 
4- 
-I- 

-I- 

+ 
+ 

4- 

4- 

4- 
+ 

f 



D-R. 



3.21 

2.35 

2.35 
o.io 

0.24 

3.30 
1.89 
2.90 

1.25 
0.79 
1.09 

0.02 

3.94 
2.08 

0.43 

0.76 

0.59 
3.67 
0.56 

1.74 
2.32 

2.41 



Sine flex., 
etc. 



0.57 + 

0.67 -f 

1.48 + 

3.07 i h 

0.S6 !-h 

o.io |4- 

1.30 4- 



4- 

I 

1+ 
+ 

!: 

4- 
I 

4- 

:+ 

,4- 

,+ 

4- 
■4- 
'4- 
,4- 

4- 

,+ 
4 
4- 



0.03 
0.03 



0.02 
0.02 
0.02 
0.02 
0.02 
0.02 
0.02 
0.02 
0.02 
0.02 

0.02 

• 

0.02 
0,02 
o.oi 

O.OI 

0.01 
0.01 
0.01 

O.OI 

0.01 
0.00 

O.tK) 



Correction 
D-R. 



4- 
4- 



0.03 4- 

0.03 !4- 

i 

0.03 — 

0.03 

0.02 



4- 

+ 
14- 

4- 
4- 

4- 
4- 

4- 

4- 
4- 

;4- 
4- 



4- 

4 

4- 



n 

0.60 
0.70 



0.04 

396 

2.09 
0.42 

0.77 

0.60 

3.68 

0.57 
1.75 

2.32 

2.41 




3 
3 



1. 51 I 2 

3.10 i 2 

0.83 I 

0.07 2 

1.32 2 



3.23 


3 


2.37 


2 


2.37 


2 


0.08 


2 


0.26 


2 


3.32 


2 


1.91 


I 


2.92 


2 


1.27 


2 


0.81 


2 


I. II 


2 



2 

3 

2 

2 

3 

3 
2 

2 
I 
2 
3 



UI 



xvm 



INlTtODUCTIOK. 



COMPARISON OF NORTH POLAR DISTANCES. &c.— Continued. 



Star. 



SOUTH STARS. 



^ Tauri . . . 

a Andromedse 

p Geminorum 

t Bootis 

a Coronae Borealis 



€ 

a 
6 

y 

P 
a 

n 
n 

a 

y 
C 

a 
a 

t 

■ 

y 

e 

a 
a 
a 

a 

I 

a 
A 
w 

n 

a 



Leonis . 

Arietis . 

Leonis 

Leonis 

Arietis . 

Bootis 

Bootis 

Leonis , 

Piscium 

Herculis 

Pegasi 

Pegasi 



AquilaB . 
Ophiuchi 
Leonis . 
Delphini 
Aquilac . 
Pegasi . 
Pegasi . 
Aqiillas . 
Orionis . 
Seri^entis 
Aquils . 



Canis Minoris 
Piscium 



Ceti . 

Aquilas 

Aquarii 

Virginis 

Aquarii 



a Hydrx . 

I Aquilx . 

p Librae 

> ^ Ophiuchi 

a Virginis 



Z. D. 



e 
lO 

II 
II 
II 

12 

15 
16 

18 

18 

19 

X9 
20 

24 

24 
24 
24 
24 

25 
26 

26 

28 

2Q 

29 
30 
30 

32 
32 
33 
33 
34 

35 
36 
38 

39 
40 

47 
47 
48 

49 
49 



-h 



+ 



-h 



+ 
+ 



4- 






-h 



4- 



D. 



I 



4- 
4- 



4- 



4- 



0.287 
0.04, 
0.72* 

0.397 
0.179 

0.66© 
0.327 
0.289 
0.636 
1.179 
o.45r 
0.1811 

0.667 



0.997 — 

o.35« - 
0.296 — 
0.944 
0.797 

0.94H 
1. 157 
0.447 

0.226 -h 

0.859 4- 



r 



R. 



D-R. 



0.839 


— 


0.143 


— 


0.69 


0.429 


-H 


0.45A 


— 


0.03 


0.3711 


— 


0.862 


-h 


0.49 


0.6311 


— 


I. Ola 


+ 


0.38 


0.837 


4- 


1.166 


— 


0.33 


0.683 


•4- 


1.05: 


— 


0.27 


0.377 


4- 


O.OI3 


-H 


0.36 


0.32* 


4- 


0.054 


— 


0.37 


o.54« 


— 


O.I2i 


+ 


0.66 


0.277 


4- 


0.054 




0.32 


1.2811 


4- 


0.66ft 


-h 


0.62 


1. 048 


— 


0.37s 




0.67 


0.727 


4- 


1.133 




0.41 


0.394 


+ 


0.243 




0.63 


0.237 


— 


0.772 


-+- 


1. 00 


1.637 


-f 


o.85f. 


4- 


0.78 


1.19a 


4 


0.204 


^ 


0.99 



0.324 

o.6i3 
i.o3« 
1.824 
1.424 

0.026 

o.57« 
0.08s 
0.073 

0.28a 

1.633 
0.25. 

0.23ft 

0.794 
0.504 

1.5^ 

0.83a 

0.854 

1.073 
1.40a 
0.023 
0.031 

0.49* 



4- 
4- 

4- 



4- 
4- 

+ 

4- 
+ 

4- 

4- 
4- 



0.04 

0.57 
0.31 

1.43 
1.25 

0.64 

0.89 

0.36 

0.70 

0.89^ 

2.08 

0.07 

0,89 

0.20 
0.85 
1.27 

1.77 
1.64 

0.13 
0.25 
0.42 
0.19 

1.34 



Sine flex.. Correction ' %«. 
etc. D-R. *^* 



0.01 
o.oi 

O.OI 

0.01 

O.OI 

O.OI 
O.OI 
O.OI 
O.OI 

0.01 
0.01 

O.OI 

0.02 
0.02 
0.02 
0.02 
0.02 

0.02 
0.02 
0.02 
0.02 
0.02 
0.02 
0.02 
0.02 
0.02 
0.02 
0.02 

0.03 

0.02 

0.02 
0.02 
0.03 
0.03 
0.03 

0.03 
0.03 
0.03 
0.03 
0.03 



4- 
4- 



4- 

I 

4- 
4- 



,4- 

I 

.4- 

4 



4- 
4- 



4- 

I 

4- 
4- 



4- 
4- 



4- 



0.70 
0.04 

0.48 

0.37 
0.34 

0.28 
0.35 
0.38 
0.65 

0.33 
0.61 

0.68 

0.43 
0.65 

0.98 

0.76 

0.97 

0.02 
0.59 

0.33 
1. 41 

1.23 

0.66 

0.87 

0.38 

0.72 

0.87 

2.06 

0.09 

0.87 

0.22 
0.83 
1.24 
1.80 
1. 61 

0.16 
0.22 

0.45 
0.16 

1.37 



2 

3 

2 

2 
3 

I 

3 
3 
2 

3 

3 

2 

2 
2 
2 

3 
3 

3 

2 
2 

3 
3 

3 

3 
3 
2 
3 

3 
2 

3 

3 

3 

3 
I 

3 

3 
3 
3 
I 

3 



TRANSIT CIRCLE. 



XIX 



For further investigatiou the mean value of D— B is takeu for each interval of lO^ of Z.D., 
with thejresult exhibited in the following table. The corresponding results for 1867 are exhibited 
tor the Bake of comparison : 



Z. D. S. 



311 
321 

330 
340 
350 

II 

22 

30 
40 

48 



1867. . 



D-R. 



4- 



0.87 
1.09 
0.89 



+ 0.72 

-H 0.96 

— 0.18 

— 0.27 

— 0.26 

— 0.48 
-- 0.33 




The instrument having been reversed at the beginning of 1868 without changing the zenithal 
reading, and the same circle afterward used in the opx)osite position, it will be seen that the position 
of the instrument, relatively to the vertical, the position of the observer, and the circle divisions 
corresponding to any zenith distance south of the one year, are thelsame with those which correspond 
to the same zenith distance north of the other year. The corresponding instrumental and personal 
errors ought therefore to be the same. Therefore, if D— B proceeds solely from invariable personal 
and instrumental errors, the value of that quantity corresponding to any zenith distance south of 
the one year, ought to be the same with that corresponding to the same zenith distance north of 
the other year, the algebraic sign being reversed because the errors are counted in opposite direc- 
tions relatively to the instrument. A glance at the table shows that this condition is by no means 
fulfilled, the algebraic sums of the corresponding values of D— B which ought to vanish, being con- 
stantly positive, and generally amounting to more than 1'^ It follows either that the cause which 
produces D—B changed between the two years, or that it is found in the different atmospheric or 
other conditions on the north and on the south side of the instrument. 

The values of D— B are far from being as regular in 1868 as in 1867, but they exhibit the same 
general peculiarity pointed out in previous years, namely, that the most marked change occurs at 
the zenith, and that the variations at different zenith distances, on the same side of the zenith, are 
far less than the sudden change at the zenith. As in former years, the general result is that the 
north polar distances proper, that is to say, reflected polar distances measured from the reflected 
pole, and direct polar distances measured from the direct pole, agree very closely till we get to the 
zenith, when. the former suddenly become greater by an amount exceeding one second. When thus 
reduced to the form of measured distances from the pole, the discordances during the three years 
the instrument has been in use are shown in the following table : 



1 

1 

1 


N. p. D. direct, minus N. P. D. reflected. 


Z.D.S. 












i 


1866. 


1867. 


1868. 





r/ 


II 


II 


310 


— 0.36 


— 0.03 


— 0.91 


320 


-h O.OI 


-H 0.19 


— 0.35 


330 


— O.X2 


— O.OI 


-f 0.27 


340 


4- 0.85 


— 0.18 


-h 0.14 


350 


-H o.ii 


+ 0.06 


-h 0.08 


10 


— 0.84 


— 1.08 


— 1.63 


20 


— 1.02 


- 117 


— 1.36 


. 30 


- 0.93 


— 1. 16 


— 1.16 


; 40 


- 0.52 


— 1.38 


- 0.97 


! 50 


— 0.91 


— 1.22 


— 2.03 

- . J 



XX 



INTRODUCTION. 



We will treat these discordances in the same way as in former years, assaming that the mean 
of D and R is correct, that D — K has a constant value on each side of the zenith until we approach 
within 50 of that point, and that between the limits .'J5o^ and 5^ tlie chanpre is progressive and 
uniform. We then have for the mean values of 1)— K : 



// 



North of the zenith I)-U = + 1.5(> 

South + 0.21 

The cosine flexure is the Siune as in 1867, except that the sign is changed. Tlie total correc- 
tion to the reduced north polar distances is : 

To direct results Di v. + 0".0G sin Z + 0".5C cos Z + a — o if 

To reflection results I)iv. + O'MO sin Z + 0".50 cos Z — a — o ^ 

Where « = — 0".7S for zenith distances between 185*^ and 35rp 

a — — 0".1() for zenith distances between 5^ and lirp 
J if „- correction to latitude, determined by the condition that the i>olar dis- 
tances determine<l on the two sides of the pole must agree. 

IXVESTKJATION OF CORKKCTIOX TO ADOPTED LATITl DK FKOM THE OBSERVATIONS OF 1H(V*. 



The arrangement of the following table is substantially 
As before, the small subscript figures mark the weights of the 
as in the comparison of direct and reflection results : 



the same as in the pre^*ediug volume, 
various results, which are determined 



Star. 



^ Ursac Minoris 

Polaris 
51 (H) Cephei . . 
6 Ursa; Minoris 
32' Camelopardi 
32- Camelopardi 
£ Ursje Minoris 

4 (II) Draconis 
K Cephei 

48 Cephei 
y Cephei 
9 (H) Draconis 

5 Ursae Minoris 
50 Draconis 

Groombrfclge 9O6 
/i Ursx Minoris 

21 Cassiopese 
79 Draconis 

y Ursae Minoris 
K Draconis 
</ Ursx Majoris 
?. Draconis 
^ Cephei 
e Draconis 

22 Camelopardi 
A Draconis 

or Ursae Majoris 
I CassiopeaD 
a Camelopardi 
32 Ursae Majoris 
a Cephei 
a Cassiopeae 



r^^.^ 




« 




Seconds 


of N. P. D. 








2 rf 0. 


2 


W. 6 0. 


Jt'C. 






















1 

i 
1 


U. Dir. 

1 1 


1 

t 


V. Rcf. 


1 


u. 




S. P. 


1 


II 






SJ 


t* 


89 


— 


0.4a, 




• • 


1 

1 


0.40y 


1 


0*. 97i„ 


1 


1.375 


— 


6.8 


89 


— 


0.39M 


-h 


0.463 




0.2417 


1 


0.67,0 


— 


o.9i« 


1 


7.3 

1 


87 


— 


0.52-. 




• • 


— 


0.52^ 


i — 


1.35k 


1 
1 


1.873 


1 
1 


5.6! 


87 


i"" 


1. 4611 




• • 


— 


1.4611 


1+ 


o.5i« 




0.955 


1 


4.8 ■ 


84 


1 


20. 91^ 


— 


20. Hi 




20. 75'. 


' + 


20.545 


— 


21: 


— 


0.4 


84 




2 . 69:1 


— 


2.211 


— 


2.574 


V 


O.Cpj 


— 


1.67: 


— 


3.3 


82 


— 


0.447 


4- 


0.131 


— 


0.3^^* 


— 


0.07,. 


— 


o.43i 


— 


0.9 


78 




2 . 50r. 


i 


• •• 


— 


2.505 


;+ 


0.41^ 


— 


2.091 


— 


2.1 


77 




i.09tj 


— 


1.04., 




1.07M 


i_ 


0.563 


— 


1.63^ 


— 


3.3 


77 




i.SS, 


1 


• • 


— 


1. 88, 


— 


0.305 


1 


2.lSj 


— 


4.4 


77 


— 


0. i6t 


— 


I'l^H 


— 


0.93.. 


— 


I . (X>.. 


— . 


1.931 


\ 


1.9 1 


76 


— 


2,05:1 


+ ■ 


0.35-' 


— 


1.09-, 


>t- 


0.365 


1 


0.732 


— 


1.5 


76 


— 


3. 09-. 


— 


'45:5 


— 


2.48H 


f 


I.I4r. 


— 


1.343 


— 


4.0 


75 


1 


3.514 




• • 


— 


3-5ii 


+ 


cSo-j 


— 


2.7Ii 


— 


5.4 


75 


-f 


o.47i 




• • 


+- 


o.47i 


f 


o.93i 


+ 


I.40I 


-f 


1.4 


75 


— 


I . S^t; 


— 


1 . 604 


— 


1 . 74in 


-\ 


0.563 


— 


1. 1 8... 


■ — 


2.4 , 


74 


1 


2.404 




• • 




2.404 


h 


0.914 


— 


1.492 


— 


30 


73 


-1- 


O.25.J 


— 


1.42:', 


— 


0.5III 


_ 


0.683 


— 


1 . 19: 


— 


2.4 


72 


— 


0.564 




• ■ 


— 


0.564 




2.07J 


— 


2.63, 


— 


2.6 . 


71 


— 


2.54:J 


— 


OAY\^ 




1 . 726 


+- 


2.464 


+ 


0.74: 


-1- 


1.5 , 


70 


— 


0.32- 




• • 


— 


0.32;. 


-1- 


0.684 


'+ 


0.361 


+ 


0.4 ! 


70 


— 


2.59'. 




i.yh 




2.II8 


-f 


0.744 




1.373 




4.1 1 


70 


— 


1.503 




3.27.S 




2.6lrt 


— 


0.112 


1 


2.72i 




5.4 


70 


— 


1.094 




• 


— 


1.094 


+ 


1.793 


+ 


O.7OJ 


+ 


1.4 


69 


1 


1 . AA:> 




• • 


— 


1.445 


— 


i.oSi 


— 


2.49, 


— 


2.5 


69 


- 


0:03-, 




• • 


— 


0.03r. 


— 


1.443 


— 


1-47: 


— 


2.9 


68 


— 


2.6I3 




• • 


— 


2.6I3 


-h 


0.5I4 




2.iaj 


— 


4.2 


67 


— 


0.494 




• • 1 


— 


0.494 


+ 


0.09.; 


— 


0.401 


— 


0.4 


66 


— 


0.133 


+ 


0.164 


+ 


0.047 


— 


1.252 


— 


1.21.2 


— 


2.4 


66 


— 


1-333 




• • 

1 


— 


1.333 


H- 


0.954 


— 


0.38: 


— 


0.8 1 

1 


62 


-+- 


O.IO,i 




2.305 


— 


0.9911 


-h 


0.042 


— 


o.95i 


— 


1.9 


56 


4- 


0.53.^ 


+ 


0.0I3 


+ 


0.34 


■^^ 


3.350 


^^ 


3010 




0.0 

1 
1 

—1 



TRANSIT CIRCLE. 



XXI 



This result diflfers (KMO from that of 18G7. The agrecineut renders it probable that the 
adopted cosiue flexure is quite near the truth. To find whether there is any systematic difference 
between the latitudes given by stars of different polar distances we divide the preceding list into 
three groups — the first ending with e Ursre Minoris, the second with x Draconis, and third with 
a Cephei. The mean values of J c? are, 

From tlie first group —0.54 

second group — 0.6G 

third group —0.57 

It appears, therefore, that there is no systematic discordance of this kind, and that the con- 
stant correction 

+ 0".51) 

is to be applied to all the reduced north polar distances on account of error of assumed latitude. 

The total corrections, from all causes, to be applied to the north i>olar distances, de4luced from 
the preliminary reductions for the observations for 18G8, are 

If II 'I 

^ ,. , , ^. i North of zenith + 9.06 sin Z + 0.50 coz Z + Div. - 0.19 

To direct observations. . . j ^^^^^ ^^ ^^^^^j^^^ ^ ^^^^ ^.^^ ^ ^ ^^^^ ^^^ ^ ^ ^.^^ ^ ^^^,^ 

To reflection observations [ ^^^^^ ^^ ^^"^^^^ + ^'^^ ^'"^ ^ + ^'^^ ^^^ ^ + ^i^^' + ^-^ ' 

t South of zenith + 0.10 sin Z + 0.56 coz Z + Div. + 0.69 

The change of 0".68 at the zenith in each class of observations is distributed through a space 
of 5*^ on each side of the zenith, within which space it is known to occur. The corrections are 
given for different north polar distances in the following table: 



SYSTEMATIC CORRECTIONS TO BE APPLIED TO THE REDUCED NORTH POLAR DISTANCES OF 
OBJECTS OBSERVED DURING iS63, ON ACCOUNT OF DIVISION, FLEXURE, ERROR OF ASSUMED 
LATITUDE, AND DISCORDANCE OF DIRECT AND REFLECTION OBSERVATIONS. 





1 

Div. correction. Flexure. 


etc. 




Total 


1 


Div. correction. 


1 


FleXurc. etc. 


1 


Tolal 






1 






correciion. 










correction. 


N.P. D. 




1 






1 




N.P.D. 












Dir. 

1 


Ref. 


Dir. 


- 


Ref. 




Dir. 


Dir. Ref. 


1 

1 


Dir. 


Ref. 

1 


1 


Dir. 


• 


ti 




n 


u 






/I 




1 1 


o 


i-f- o.iS 


— 0.22 


+ 0.12 


1 + 


1.64 


4- 


0.30 


25 


— 0.14 1— 0.05 -h 


0.28 


4- 1.84 


4- 


0.14 


X 


o.iS 


0.28 


0.13 




1.65 




0.31 


26 


0.16 0.08 


0.29 


1 1.85 




0.13 


2 


0.24 


0.37 ' 0.14 




1.66 




0.38 


27 


0.20 0.08 


0.29 


1.85 




0.09 


3 


0.30 


0.42 


0.15 




1.67 




0.45 


28 


0.23 0.08 


0.30 


1.86 




0.07 


4 


0.30 


0.43 ' 0.15 




1.68 




0.45 


29 


0.22 0.08 1 


0.31 


1.87 




09 


5 


+ 0.30 


— 0.37 -h 0.16 


1 + 


i.6g 


4- 


0.46 


30 


— 0.19 — 0.07 


4- 


0.31 


'4- 1.87 


+ 


0.12 


6 


0.31 


0.31 ' 0.17 




1. 71 




0.48 


3; 


0.18 0.06 




0.32 


1.88 




0.14 


7 


0.37 


0.30 ' 0.17 




1.72 




0.54 


32 


0.22 0.05 




0.32 


1.88 




0.10 


8 


0.43 


0.30 


0.18 




1-73 




0.61 


33 


0.27 0.03 ; 


0.32 


1.88 




0.05 


9 


0.42 


0.30 


o.ig 




1.74 




0.61 


34 


0.27 — 0.02 




0.33 


1.89 




0.06 


lO 


-+- 0.37 


— 0.24 I-h 0.19 


4- 


1-75 


4- 


0.56 


35 


— 0.26 4- o.oi 


+ 


0.33 


4- r.89 


4- 


0.06 


II 


0.28 


0.18 0.20 




1.76 




0.48 


36 


0.22 0.05 1 


0.33 


i.8g 




0.07 


12 


0.22 


0.18 0.20 




1.76 




0.42 


37 


0.14 , O.IG 




0.34 


I. go 




O.II 


13 


o.i6 


0.18 ' 0.21 


1 


1-77 




0.37 


38 


— 0.06 1 0.15 




0.34 


I. go 




0.20 


14 


0.15 


0.17 


0.22 




1.78 




. 0.37 


39 


+ o.oi 0.16 




0.35 


i.gi 




0.28 


15 


-h 0.18 


— 0.16 + 0.23 


+ 


1.79 


4- 


0.41 ^ 


40 


4- O.OI i-f 0.15 '4- 


0.35 


-h 1. 91 


4- 


0.36 


i6 


o.ig 


0.15 0.24 




1.80 




0.43 


4; 


o.oi 0.14 




0.36 


1.92 




0.36 


17 


0.15 


0.14 


0.24 


1 


1.80 




0.39 1 


42 


0.03 O.II 




0.36 


1.92 1 




0.39 


i8 


O.II 


0.13 , 0.25 




1. 81 




0.36 , 


43 


0.04 0.08 




0.36 


1.92 ' 




0.40 


19 


0.08 


O.II 


0.25 


, 


1. 81 




0.33 ; 


44 


0.04 1 0.06 j 


0.37 


1.92 




0.41 


20 


-h 0.06 


— 0.10 -f 0.26 


4- 


1.82 


4- 


0.32 


45 


4- 0.03 4- 0.06 !-4- 


0.37 


-H 1.93 


4- 


o''.40 


21 


+ 0.03 


0.08 1 0.26 


1 


1.82 




0.29 


46 


0.03 9.06 




0.37 


1.93 




0.40 


22 


— 0.04 


0.04 0.27 




1.82 




0.23 


47 


0.08 O.IO 




0.44 


1.86 




0.52 


23 


o.io 


0.02 0.27 




1.83 




0.17 


48 


0.12 ' 0.14 




0.51 


1.79 




0.63 


24 


— 0.12 


— 0,03 


4- 0.28 


14- 


1.84 


+ 


0.16 

1 


49 


4- 0.12 .4- 0.14 


-h 


0.58 


+ 1.73 


4- 


0.70 



XXII 



INTBODUCnON. 



SYSTEMATIC CORRECTIONS TO BE APPLIED TO THE REDUCED NORTH POLAR DISTANCES OF 

OBJECTS OBSERVED DURING 1868. &c.— Continued. 





Div. correction. 




Flexure, etc. 


Total 
correction. 


1 


1 
Div. correction. 


Flext 


ire. 


etc. ' 


Total 
correction. 


N.P.D. 




1 








1 






.N.P.D. 
























I 
















. 




Dir. 


Ref. 


i 


Dir. 


Ref. 




Dir. 


1 


Dir. 


Refr 


Dir. 




Ref. 


Dir. 


• 


II 


// 




II 




f/ 




II 


1 


It 


1 
" 1 


n 


It 


II 


50 


-f 0.07 


-h 0.07 


-h 


0.64 


-h 1 


[.66 


4- 


0.71 


! no 


-h 0.06 


— O.IO 


4- 0.83 


+ 


1. 07 


+ 0.89 


51 


0.00 


0.00 




0.71 




••57 




0.71 


III 


4- 0.03 


0.08 


• 0.82 




1.06 


0.85 


52 


— 0.07 


— 0.07 




0.78 




.51 




0.71 


112 


— 0.04 


0.04 


0.82 




1.06 


0.78 


53 


0.14 


0.12 




0.85 




[.44 




0.71 


113 


0.10 


0.02 


0.81 




1.05 


0.71 


54 


0.14 , 


0.12 




0.91 




.40 




0.77 


114 


0.12 


0.03 


0.80 




1.04 


0.68 


55 


— O.IO 


— 0.08 , 


-h 


0.98 


4- 1 


.33 4- 


0.88 


"5 


— 0.14 


— 0.05 


+ 0.79 


-h 


1.03 


4- 0.65 


56 


0.06 


0.03 




1.05 




[.26 1 


0.99 


116 


0.16 


0.08 


0.78 




1.02 


0.66 


57 


0.06 


0.03 




1.05 




:.26 ' 


0.99 


"7 


0.20 


0.08 


0.77 




1. 01 


0.57 


58 


0.06 


0.04 




1.05 




.26 


0.99 


118 


0.23 


0.08 


0.77 




1. 00 


0.54 


59 


0.08 


0.04 




1.05 




:.26 


0.97 


119 


0.22 


0.08 


0.76 




0.99 


0.54 


60 


— O.II 


- 0.03 


-h 


1.06 


4- 1 


:.27 + 


0.95 


120 


— 0.19 


— 0.07 


-1- 0.75 


-^ 


0.98 


4- 0.56 


61 


0.14 


O.OI 




1.06 




[.27. 


0.92 


121 


0.18 


0.06 


0.74 




0.97 


0.56 


62 


0.15 


O.OI 




1.06 




:.27 


0.91 


122 


0.22 


0.05 


0.73 


• 


0.97 


0.51 


^3 


0.16 


— O.OI 




1.06 




[.27 


0.90 , 


123 


0.27 


0.03 


0.72 




0.96 


0.45 


64 


0.15 


-f 0.06 




1.05 




:.27 




0.90 


124 


0.27 


— 0.02 


0.71 




0.95 


0.44 


65 


— O.IO 


-+- 0.14 


-h 


1.05 


-f 1 


[.26 


-h 


0.95 


1 125 


— 0.26 


4- O.OI 


-H 0.70 


+ 


0.94 


-H 0.46 


66 


0.05 


0.22 




1.05 




:.26 




1. 00 


! 126 


0.22 


0.05 


0.69 




0.93 


0.47 


67 


O.OI 


0.26 




1. 05 




:.26 




I. a* 


127 


0.14 


O.IO 


0.68 




0.93 


0.54 


68 


— 0.02 


0.27 




1.05 




[.26 




1.07 


, 128 


— 0.06 


0.15 


0.66 




0.92 


0.60 


69 


4- 0.03 


0.27 




1.04 




.26 




1.07 


; 129 


•H O.OI 


0.16 


0.65 




0.91 


0.66 


70 


-h 0.05 


+ 0.22 


+ 


1.04 


4- 1 


.25 


4- 


1.09 


130 


O.OI 


0.15 


0.65 




0.90 


0.66 


71 


0.06 


0.18 




1.04 




[.25 




•I. 10 


m 


4- O.OI 


4- 0.14 


4- 0.65 


4- 


0.89 


-\- 0.66 


72 


0.07 


0.19 




1.04 




[.25 




I. II 
















73 


0.08 


0.22 




1.03 




.25 




I. II 


328 


— 0.06 


— 0.04 


- 0.18 


+ 


.1.38 


- 0.24 


74 


0.08 


0.23 




1.03 




[.24 




I. II 


1 329 


' 0.08 


0.04 


0.17 




1.39 


0.2s 


75 


-h 0.08 


-h 0.20 


+ 


1.03 


-f ] 


[.24 + 


I. II 


1 330 


O.II 


0.03 


0.16 




1.40 


0.27 


76 


0.08 


0.16 




1.03 




[.24 1 


I. II 


331 


0.14 


— O.OI 


0.15 




1. 41 


0.29 


77 


0.05 


0.14 




1.02 




[.23 


1.07 


332 


- 0.15 


H- 0.01 


— 0.14 


^- 


1.41 


— 0,29 


78 


0.03 


0.12 




1.02 




[.23 


1.05 


! 333 


0.16 


O.OI 


0.13 




1.42 


0.29 


79 


0.02 


O.IO 




1. 01 




[.23 


1.03 


334 


0.15 


0.06 


0.13 




1.43 


0.2S 


80 


-H 0.04 


-f 0.04 


-h 


1. 01 


4- ] 


[.22 -h 


1.05 


335 


O.IO 


0.14 


0.12 




1.44 


0.22 


81 


0.08 


— 0.03 




1. 00 




[.22 


1.08 


336 


0.05 


0.22 


O.II 




1-45 


0.16 


82 


O.IO 


0.06 




1. 00 




[.22 


1. 10 


337 


— O.OI 


-1- 0.26 


— O.IO 


-h 


1.46 


- O.II 


83 


O.II 


0.08 




0.99 




[.21 


1. 10 


338 


+ 0.02 


0.27 


0.09 




1.47 


0.07 


84 


0.13 


O.II 




0.99 




[.21 


1. 12 


339 


0.03 


0.27 


0.08 




1.48 


0.05 1 


85 


-H 0.14 


- 0.15 


+ 


0.98 


+ 1 


[.21 -h 


1. 12 


340 


0.05 


0.22 


0.07 




1.49 


— 0.02 


86 


0.15 


0.19 




0.98 




[.20 


1. 13 


341 


-h 0.06 


-h 0,18 


- 0.06 


-1- 


1.50 


-1- 0.00 


87 


0.16 


0.16 




0.97 




[.20 ' 


1.13 


342 


0.07 


0.19 


0.05 




1. 51 


0.02 


88 


0.17 


0.15 




0.97 




t.19 


1. 14 


343 


0.08 


0.22 


0.04 




1.52 


0.04 


89 


0.18 


0.16 




0.97 




[.19 


1. 15 


344 


0.08 


0.23 


0.03 




1.53 


P.05 


90 


+ 0.18 


— 0.22 


+ 


0.96 


4- ] 


[.18 -h 


1. 14 


345 


0.08 


0.20 


— O.OI 


— 


1.54 


0.07 


91 


0.18 


0.28 




0.96 




[.18 ' 


1. 14 


346 


4- 0.08 


-h 0.16 


0.00 




1.55 


-f 0.08 


92 


0.24 


0.37 




0.95 




[.18 . 


1. 19 


347 


0.05 


0.14 


0.00 




1.56 


0.05 


93 


0.30 


0.42 




0.95 




[.17 ; 


1.25 


348 


, 0.03 


0.12 


4 O.OI 


4- 


1.57 


0.04 1 


94 


0.30 


0.43 




0.94 




[.17 1 


1.24 


349 


' 0.02 


O.IO 


0.02 




1.58 


0.04 ^ 


95 


+ 0.30 


- 0.37 


-f 


0.94 


4- \ 


[.16 -h 


1.24 


350 


0.04 


-H 0.04 


0.03 




1.59 


n.07 1 


96 


0.31 


0.31 




0.93 




[.16 1 


1.24 


351 


-f 0.08 


— 0.03 


4- 0.04 


4- 


1.60 


-f- 0.12 ! 


97 


0.37 


0.30 




0.93 




[.15 . 


1.30 


352 


1 O.IO 


0.06 


0.04 




1.60 


0.14 ! 


98 


0.43 


0.30 




0.93 




1. 15 




'1.36 


353 


O.II 


0.08 


0.05 




1. 61 


0.16 j 


99 


0.42 


0.30 




0.93 




1.14 




1.35 


354 


! 0-I3 


O.II 


0.06 




1.62 


0.19 


100 


-h o'.37 


— 0.24 


+ 


0.93 


4- 


t.14 


4- 


1.30 


355 


0.14 


0.15 


0.07 




1.63 


0.21 


lOI 


0.28 


0.18 




0.93 


' 


113 




1. 21 


356 


4- 0.15 


— 0.19 


+ 0.08 


■X- 

• 


1.64 


-h 0.23 


102 


0.22 


0.18 




0.92 




1. 13 




1. 14 


357 


0.16 


0.18 


0.08 




1.64 


0.24 


103 


0.16 


0.18 




0.91 




1.12 




1.07 


,; 358 


0.17 


0.15 


0.09 




1.65 


0.26 


104 


0.15 


0.17 




0.89 




I. II 




1.04 


359 


0.18 


0.16 


O.IO 


1 

1 


1.65 


0.28 


105 


4- o.i8 


— 0.16 


.+ 


0.87 


4- 


1. 10 -H 


1.05 


360 


4- 0.18 


— 0.22 


-h O.II 


4- 


0.29 


+ 0.29 ' 


106 


0.19 


0.15 




0.86 




1.09 , 


1.05 




1 




1 








107 


0.15 


0.14 




0.86 




1.09 




1. 01 














1 


108 


O.II 


0.13 




0.85 




1.98 




0.96 


, 


, 












109 


-h 0.08 


— O.II 


+ 


0.84 


4- 


1.08 


4- 


0.92 


1 


1 










r 

1 



TRANSIT CIBCLE. 



xxn( 



POSITIONS OF THE SUN, MOON, AND PLANETS, DEDUCED FROM OBSERVATIONS, WITH THE TRANSIT 

CIRCLE. 

When both limbs of an object presenting a fully illuminating disk were observed, the right 
ascension here given is that of the mean of the two limbs, as found in column ^'Apparent B. Ascen- 
sion" of the observations. 

When only one full limb was observed, the right of ascension of the center is found by applying 
the sidereal time of semidiameter passing meridian, as given in the column '< Miscellaneous Correc- 
tions," without correction except for the sun. From a discussion of all the semidiameters of the 
sun determined by each observer during the year 1868, it appears that the following corrections are 
necessary to reduce the semidiameters of the American Ephemeris to the standards of the several 
observers: 



Observer. 


Sidereal time 
of semidiam- 
eter passing 
meridian. 


1 

Vertical 
semidiam- 
eter. 


N. 

Ha. 

E. 

T. 

A. 

F. 


s. 

— 0.082 

— 0.080 

— 0.016 

— 0.044 

— 0.066 
+ 0.009 


II 

— 1.90 

— 0.3: 

— 0.02 
4- 0.08 

— 0.58 

— 0.68 



The correction corresponding to the observer was applied whenever only one limb of the sun 
was observed. 

When one of the limbs observed was defective, the observed difference of right ascension of 
limbs was multiplied by the computed ratio of this difference to the true semidiameter, and the 
observed semidiameter thus deduced was applied to the right ascension of the full limb to obtain 
that of the center. The adopted formulae for the computation are as follows: Put 

t =elougatiou of earth and sun as seen from planet. 
6=cos t. 
d, ^'=declinations of planet and sun. 
A=difference of their right ascensions, 
^ssangle which the line of cusps makes with the meridian. 
/, /'=fiictors by which measured horizontal and vertical diameters must be multiplied to obtain 
true semidiameter. 
To And/ we then have 

. ^ cos S tan d^ sin S 

tan 0=: , rr - 

sm A tan A 

When the planet is gibbous 

g =:cos V V + tan* ^z^cos 0" when sin ^'=cos ^ sin i 
^=sin V b^ + cot* ^=cos ^ when sin ^ =sin ^ sin i 
1 



/ = 



1 + g 

1 



When the illuminated disk is a crescent, 

1 



flfsscos^; / = 
jf'sssin^; /'= 



1 

1+g' 



XXIV INTRODUCTION. 

When the center of light of Mercury was observed, let e be the reduction to true center. The 
value of e was obtained from the empirical formuhe 

(l-.6)(5 + 6) 
12 

in R. A: e=sen)idian]. x racos o 
in N. P. D. e=semidiam. x it sin ^/ 

The north polar distances are reduced from the part actually observed to cent^^r in the same 
way with the right ascensions, and by the forniuhe and numbers just given. The following further 
corrections are then applied : 

1. The parallax in altitude found in the last column of the observations. 

2. The corrections for division, flexure, latitude, and constant of zenith point, taken from the 
last column of the preceding table. 

The columns of corrections always give, in the first place, the corrections to the positions given 
in the transit ephemeris of the American Ephemeris and Nautical Almanac. No transit ephemeris 
of the Moon being there found, the tabular right ascension is computed thus : the observed right 
(Mcensian of center j considered as sidereal time, is reduced to Washington mean time, and the cor- 
rection 

applied to reduce it to Greenwich time. The co-ordinates are then interpolated to this moment 
from the Greenwich part of the Ephemeris. 

When the polar distance only was observed, the mean time was taken immediately from the 
" Moon cidminations " of the American Ephemeris. 

The tabular place from Hansen's tables of the Moon is interpolated from the British Nautical 
Almanac in the same way. 

The observ^ed positions of Venus and Mars are also compared with Le Verrier's tables. The 
coordinates are here interpolated occasionally from the British Nautical Almanac, Jis a check, but 
in most cases are obtained by applying to the transit position of the American Ephemeris the 
diffi&rences between the positions for Greenwich noon given in the two Ephemerides. 
'^ The positions of Neptune are also compared with Newcomb's tables, the t^ibular p(^sitions being 
interpolated from the Appendix to the American Ephemeris for 1869. 

In the list of observed positions of the small planets, the Washington mean time is computed 
from the observed right ascension. This is increased by G*' 1»".8 to reduce it to Berlin time, and the 
" aberration time,"— [0.9148] J, usually given in the Ephemeris, is subtracted. Thus we have the 
Berlin mean time at which the light left the planet. To this time the position given in the Ephe- 
meris is interpolated. 

The Ephemeris .with which each observed position of the asteroids is compared, is indicated 
after its name, the following abbreviations being used : 

B. Y. — Berliner Astronomisches Jahrbuch. 
A. N. — Astronomische Nachrichten. 



TBAKSrr CIBCLE. 



TABLE A.— COLLIMATION 1868. 



Date 




• 

t 


South. 


North. 


Coll. from 


m 


• 


• 




Image E. 


Image W. 


observation. 


T 


1868, 


1 


, 




r. 




r. 




• 


e 


J. 


February 


3.0 


N. 


-f- 


.035 


— 


.157 


— 


0.086 


22 


- .159 




10. 


N. 


H- 


.077 


— 


.335 


— 


0.156 


10 


— .189 




17.9 


N. 


— 


.014 


— 


.125 


— 


0.095 


34 


— .208 


March 


9.9 


N. 


— 


.019 


— 


.147 


— 


0.109 


48 


— .269 




22.9 


N. 


— 


.121 




.000 


— 


0.085 


52 


— .258 


April 


6 


N. 


+ 


.027 


— 


.123 


— 


0.073 


48 


- .233 




20 


N. 


— 


.oil 


+ 


.027 


— 


0.017 


53 


- .194 




27 


N. 


— 


.069 


-H 


.103 


— 


0.008 


55 


— .191 


May 


3 


N. 


— 


.001 


-f 


.059 


4- 


0.004 


60 


- .194 




10.9 


N. 


+ 


039 


— 


.015 


— 


0.013 


58 


— .206 




24.9 


N. 


— 


.016 


H- 


.106 


4- 


0.020 


67 


— .203 




31.9 


N. 


+ 


.043 




.000 


— 


0.003 


70 


— .236 


June 


7.9 


N. 


— 


.028 


H- 


.064 


— 


0.007 


77 


— .264 




14.9 


N. 


— 


.005 


H- 


.063 


4- 


0.004 


79 


- .259 




28.9 


N. 


4- 


.058 


-f- 


.124 


4- 


0.066 


76 


— .187 




28.9 


N. 


— 


.018 


+ 


.010 


— ■ 


0.029 


76 


— .282 


July 


5.9 


N. 


+ 


.031 


— 


.013 


— 


0.016 


84 


— .296 




12.9 


N. 


— 


.046 


+ 


.118 


4- 


0.012 


84 


— .268 




19.9 


N. 


+ 


.044 


+ 


.012 


4- 


0.003 


87 


— .287 




27.1 


E. 


— 


.049 


-f- 


.230 


4- 


0.067 


80 


— .200 




27.9 


E. 


— 


.140 


+ 


.SIO 


4- 


O.OII 


77 


— .246 


August 


2.9 


E. 


— 


.002 


-f- 


.166 


4- 


0.060 


83 


- .217 




9.9 


E. 


-h 


.015 


+ 


.114 


4- 


0.041 


80 


— .225 




16.9 


E. 




.042 


+ 


.230 


4- 


0.072 


76 


— .183 




23.9 


E. 


4- 


.078 


-f 


.214 


4- 


0.123 


78 


- .137 




30.9 


E. 


— 


.156 


+ 


.354 


4- 


0.077 


85i 


— .208 


September 


7.1 


N. 


— 


.005 


4- 


.213 


4- 


0.082 


81 


- •iSS 




14. 1 


N. 


+ 


.012 


+ 


.200 


4- 


0.084 


75 


- .166 




20.9 


N. 


-h 


.020 


4- 


.102 


4- 


0.038 


66 


- .188 




30.9 


N. 


— 


.022 


4- 


.096 ' 


4- 


0.014 


64 


- .199 


October 


4.9 


N. 


— 


.015 


4- 


.151 


4- 


0.045 


64 


- .168 




II. 7 


N. 


+ 


.033 


— 


.013 


— 


0.014 


64 


— .227 




19.9 


N. 


— 


.132 


4- 


.140 


— 


0.020 


55 


— .203 


November 


2.1 


N. 


— 


.075 


— 


.045 


— 


0.085 


5ii 


— .256 




8.9 


N. 


-h 


.168 


— 


.187 


— 


0.034 


60 


- .234 


* 


15.9 


N. 


+ 


.126 


— 


.242 


— 


0.083 


50 


— .250 


December 


1.9 


N. 


+ 


.065 


— 


.215 


— 


O.IOI 


38 


— .228 




10. 1 


N. 


-h 


.035 


— 


.398 


— 


0.158 


38 


- .285 




13.9 


N. 


+ 


.009 


— 


.275 


— 


0.159 


32 


- ,266 


• 


20.9 


N. 


— 


.047 


— 


.194 


— 


0.146 


43 


— .289 




27.9 


N. 


■4- 


.010 


~ 


.103 




0.071 


32 


— .178 



May 31.9. Found the wires not vertical ; corrected them after this observation. 
June 28.9. Adjusted after this observation. 

IV 



XXVI 



INTRODUCTION. 



TABLE B.— ADOPTED CORRECTIONS FOR COLLIMATION, LEVEL, AND AZLMUTH 

OF THE TRANSIT CIRCLE FOR 1868. CIRCLE EAST. 



y 





• 










Date 


• 


c. 


s. 


m 




1868 


ft 






s. 


January 


4.9] 




.00 
.00 


4- 


.16 
.16 




30 


— 


.11 


+ 


.02 


• 


31 


— 


.10 


-h 


.12 


February 


I 


— 


.09 


+ 


.13 




2 


— 


.08 


-+- 


.15 




3 


— 


.12 


-f 


.16 




6 


— 


.08 


-h 


.17 




7 


— 


.12 


4- 


.17 




II 


— 


.11 


-h 


.18 




12 


— 


.09 


-h 


.21 




13 


— 


.08. 


-h 


.22 




14 


— 


.11 


+ 


.22 




15*^. 


— 


.06 


+ 


.20 




17 


« 


.08 


-h 


.12 


« 


18 




.09 


4- 


.08 




19 


— 


.03 


4- 


.06 




22 


— . 


.10 


4- 


.06 


March 


lod. 


— 


.03 




.81 




16 


— 


.02 


4- 


■07 




18 




.06 


4- 


.20 




19 


— 


.10 


4- 


.25 




23 


— 


.05 


4- 


.04 




24 


— 


.05 


4- 


.02 




30 If. 


— 


.11 


— 


05 




31 


-^ 


.06 


-^ 


.03 


April 


I 




.03 


— 


.07 




3». 


— 


.09 


— 


.04 




^d. 


— 


.05 


— 


.04 




6 


— 


.09 


■«■« 


.03 




8 


— 


.07 


— 


.06 




17^. 


+ 


.01 


— 


.06 




18 


— 


.01 


— 


.06 




2Il». 


— 


.03 


— 


.07 


• 


23 


4- 


.02 


— 


.08 




24 


— 


.02 


— 


.06 




27 


+ 


.01 


— 


.10 




28 


+ 


.03 


— 


.09 




30 


-h 


.05 


— 


.09 


May 


I 


+ 


.02 


— 


.09 




2 


-f- 


.04 


— 


05 




4 




.00 




.03 




8 


— 


.03 


— , 


,06 




9 




.00 


— 


.06 




II 




.01 


— 


.07 




12 




.00 


— 


.07 




14 


+ 


.02 


— 


.06 




16 


-h 


.01 


— 


.06 




18 


-h 


.01 


— 


.05 




21 


+ 


.01 


— 


.04 




22 


H- 


.03 


— 


.06 




25^. 


-+- 


.03 


— 


.04 




26 


-h 


.03 




.02 




2T d. 


+ 


.03 


— 


.04 




291/. 


-h 


.02 




.00 




30 


+ 


.02 


4- 


.03 




31 




.00 


H- 


.03 


June 


I 


— 


.02 


-t- 


.03 




4 


— 


.04 


+ 


.05 




5 


— 


.03 


4- 


.06 




td. 


— 


.01 


+ 


.02 




8 


— 


.01 




.00 




9 


— 


.or 




.00 




12 


— 


.02 




.00 




13 


— 


.01 


4- 


.03 




15 


-h 


.01 


4- 


.03 




17 ». 




.00 


-h 


.04 




18 




.00 


-h 


.09 




igd. 


+ 


.02 


+ 


09 



a. 



4 
4- 
4- 
4- 






4- 



+ 



4- 

4- 
4- 
+ 
4- 

+ 
4- 
4- 
+ 
4- 



o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 
o. 



s. 

67 1 

32 1 
40 

27 
24 

20 

14 

20 

38 

12 

05 

II 

04 
04 

20: 

36 

35 

31 
23 

02 

64 

34 

13 

20 
43 

40 

34 
30 

25 
40 

52 

10 

03 

12 

17 

15 

19 
16 

10 

07 

07 

06 

10 

28 

26 

30 

30 

45 
17 
32 
30 
22 

13 
13 
00 

07 
00 

09 

08 

02 

10 

18 

24 

05 

05 

l()d. 

25 «. 

40 

44 
44 



Circle west. 
4- 0.4S (/ ~ Jan. 30'', 4 at 7''.) 



s. 



— 0.48 (/— March 19**. 3 at 7*'.) 



TRANSIT CIBCLE. 



xxyn 



TABLE B.-ADOPTED CORRECTIONS FOR COLLIMATlON. &c.-Continued. 



Date. 



c. 



June 



1868. 



July 



August 



September 



October 



10 d. 
22 

23 

24 

25 «. 

26 

27 

28 

29 

I 

2 

3 
4 
bd. 

7 
8^. 

io«. 

II 

13 

14 

15 
16 

17 

18 

2I</. 

22 

23 

25 
28 
29 
30 
31 

5 
6 

7 
10 

12 

13 
M 
15 
17 

18 

19 
20 

22 

24 
26 

27 
29 

31 

4 

5 
6n. 



8 . 
10 
II 

12^. 
16 

17 
18 

19 
21 

28 

29^. 

30 
I 
2 

5 
6 

7 



+ 






+ 
+ 
-+- 
4- 
+ 

+ 

+ 

+ 
-+- 
-f 

-h 
-h 
-+- 
+ 

+ 
4- 
-+- 

+ 

+ 

+ 

-+- 

+ 
+ 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 



.00 
.00 
.00 
.00 
.02 

.03 
.02 

.01 
.01 
.01 
.01 
.00 
.00 
.02 
.oi 
.01 
.01 
.02 
.01 
.00 

.CX5 
.00 
.00 
.02 
.02 
.06 
.06 
.06 
.06 

.05 
.06 
.05 

.05 
.04 

.03 
.04 

.05 

.06 

.07 

.06 

.06 

.05 

.05 

.05 

.06 

.06 

.06 

.06 

.06 

.06 

.06 

.06 
.09 
.09 
.10 
.04 
.01 
.01 
.03 
.02 
.05 
.04 

•03 
.04 

.03 
.03 

.02 
.03 



4- 



5. 
.02 

.00 14- 
.00 '4- 



b. 



4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 

4- 
4- 
4- 
4- 



5. 
.09 

.14 
.11 
.12 
.11 
.09 
.08 
.07 
.06 
.05 
.07 

[O 

3 

3 

3 

4 

7 

3 
2 

o 

3 
6 

8 

4 
I 

o 

.09 

.08 

.04 

.04 

.00 

.05 

.04 

.05 
.04 

— .09 

— .02 

— .05 

— .04 

— .04 

— ■ .04 

— .05 

— .05 

— .05 

— .06 

— .06 

— .07 

— .06 

— .06 

— .06 

— .05 

— .10 

— .10 

— .10 

— .07 

— .06 

— .06 

— .06 

— .11 

— .09 

— .15 

— .15 

— .17 

— .08 

— .09 

— .10 

— '.14 

— .13 

— .13 

— .12 

— .12 



a. 



4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4-' 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 

4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
4- 
+ 
4- 
4- 
4- 
4- 
4- 
4- 
4- 



s. 
0.44 
0.44 

0.37 
0.30 
0.23 
0.17 
0.08 
O.II 

0.23 
0.30 

0.40 
0.40 

0.57 
0.63 
0.68 
0.74 
0.58 

0.61 
0.66 
0.52 
0.65 

0.80 
0.56 

0.69 

0.66 

0.60 

0.52 • 

0.50 

0.20 

0.30 

0.20 

0.04 

0.35 
0.56 

0.39 

0.29 
0.46 
0.30 

O.IO 

0.15 
0.26 
0.32 
0.48 
o 41 
0.26 

0.28 
0.18 
0.24 
0.24 
0.31 
0.40 
0.16 
0.16 

0.17) 

0.06 J 

0.17 

0.20 

0.30 

0.40 

0.08 

0.16 

0.12 

0.33 
0.45 

0.17 
0.20 
0.26 

0.37 

0.30 

0.34 
0.30 

0.30 



xxvm 



IKTaODUCnOK. 



TABLE B.— ADOPTED CORRECTIONS FOR COLLIMATION. &c.— Continued. 



Date. 


c. 





b. 


a. 


1868. 




J. 


s. 


October 8 


+ 


.02 


— 


.12 


— 0.28 


9 


— 


.05 


— 


.12 


— 0.26 


12 


— 


.03 


— 


.12 


— 0.40 


13 


— 


.03 


— 


.10 


- 0.45 


16 


— 


.04 


— 


.12 


— 0.40 


17 


— 


.08 


— 


.10 


— 0.36 


19 


— 


.03 


— 


.10 


— 0.56 


22 


— 


.07 


— 


.07 


— 0.60 


23 


— 


.09 


— 


.07 


- 0.49 


24 


— 


.07 


— 


.09 


— 0.52 


26 


— 


.05 


— 


.09 


- 0.57 ; 


28 


— 


.04 


— 


.11 


— 0.50 


29 


— 


.06 


— 


.08 


— 0.36 


30 


— 


.05 


— 


.08 


«- 0.48 


November 2 


— 


.09 


— 


.08 


- 0.35 


3 


— 


.08 


— 


.08 


— 0.40 


4 


— 


.05 


— 


.08 


— 0.48 


5 


— 


.05 


— 


.08 


— 0.63 


6 


— 


.08 


— 


.06 


— 0.46 


7 


— 


.06 


— 


.06 


- 0.55 


9 


— 


.01 


— 


.12 


— 0.46 


10 


— 


.01 


— 


.10 


- 0.44 


II 


— 


.09 


— 


.06 


— 0.16 


12 


— 


.10 


— 


.03 


— 0.19 


13 


— 


.09 


— 


.02 


— 0.20 


14 


— 


.06 


— 


.02 


— 0.40 


18 


— 


.10 


— 


.04 


- 0.54 


19 


— 


.08 


— 


.03 


- 0.54 


21 


— 


.lO 


— 


.03 


- 0.74 


23 


— 


.10 




.00 


- 0.74 


24 


— 


.lO 


— 


.03 


— 0.56 


26 


— 


.09 


— 


.06 


— 0.60 


27 


— 


.11 


— 


.03 


— 0.65 


28 


— 


.09 


— 


.03 


— 0.80 


30 


— 


.09 


— 


.03 


— 0.80 


.December i 


— 


.12 


— 


.02 


— 0.63 


2 


— 


.12 


— 


.03 


— 0.52 


3 


— 


.12 


— 


.03 


— 0.52 


5 


— 


.12 


— 


.05 


- 0.93 


8 


— 


.16 


— 


.03 


— 0.82 


9 


— 


.17 




.00 


- 0.75 


10 


— 


.17 


+ 


.07 


- 0.55 


12 


— 


.19 


-h 


.10 


— 0.31 


14 


— 


.18 


-h 


.10 


- 0.54 


17 


— 


.14 


+ 


.05 


— 0.60 


18 


— 


.16 


-H 


.05 


— 0.60 


19 


— 


.16 


-h 


.05 


— 0.60 


21 


— 


.13 


+ 


.05 


- 0.75 


22 


— 


.15 


-h 


.05 


— 0.80 


23 


— 


.18 


+ 


.10 


- 0.57 


24 


— 


.18 


+ 


.14 


— 0.52 


25 


— 


.15 


+ 


.18 


— 0.52 


26 


^^* 


.15 


-h 


.20 


— 0.52 




September 7. The first azimuth was used till 22** sid. time by mistake. 



TBANSIT CXBCLV. 



TABLE C— ADOPTED CORRECTIONS AND RATES OF THE SIDEREAL CLOCK IN 1868. 



Mean day 
sidereal ti 


and 
lour. 


correction 
mean of- 
rvations. 


correction 
d for per- 
1 equation. 


1 

.0 
«> 
c< 

c 


• 

M 

o« 

9 


(3 


ed hourly 
rate. 


Mean day and 
sidereal hour. 


correction 
mean of 
rvations. 


correction 
d for per- 
1 equation. 


1 
.0 




• 

M 

9 

% 


ed hourly 
rate. 






-sgs 






4) 








-Sg« 


•51 "t c 


^ 




P. 






Si Oj3 

.2«^ 


goo 
.2 u «» 


p. 





•0 






.2^ 


goo 

.Sum 


0. 
0. 


V 



•0 









U 


< 




< 






u 





< 




< 


1868. d. 


h. 


s. 


/. 




S. 
.000 


s. 


1868. d. 


h. 


s. 


s. 




J. 


S, 


Jan. 4 


3.5 


-r 5.14^1 


- 5.18 


. 


.000 


.000 


Apr. 17 


4.8 


+30.85«(i) 


+ 45.81 


+ 


.045 


+ .045 


9 


22.8 


- 5.I5A/ 


- 5.15 


+ 


.012 


+ .006 


18 


4.8 


+31.94M 


+ 46.90 


+ 


.041 


+ .043 


30 


1.8 


-h 0.93/ 


+ 0.99 


+ 


.014 


+ .013 


21 

• 


12.0 


+36.2211 


+ 50.18 


+ 


.044 


-h .043 


30 


II. 8 


+ l,l^a 


+ 1. 13 


+ 


.014 


+ .014 


23 


8.2 


+ 52.10^ 


+ 52.10 


+ 


.010 


+ .020 


31 


1.8 


+ 1.27/ 


+ 1.33 


+ 


.002 


+ .012 


24 


".5 


+52.42<J 


-h 52.38 


+ 


.029 


+ .002 


31 


6.7 


-f 1.38^ 


+ 1.34 


# 

+ 


.014 


+ .012 


27 


II. 5 


- 5.48« 


- 5.52 






- .007 


Feb. 2 


4.3 


-fc- 1.94/ 

• 


+ 2.00 


+ 


.020 


+ .018 


27.9 


0.0 


-14.46^(1) 


- 14.50 






+ .010 


3 


5.2 


+ 2.53« 


+ 2.49 


f 

+ 


.002 


+ .015 


28 


10. 


-14.43^(1) 


- 14-43 






+ .010 


6 


5.6 


+ 2.60^ 


+ 2.60 


+ . 


.022 


+ .015 


30 


II. 2 


— i4.oi« 


- 14.05 


+ 


.013 


+ .oil 


7 


4.3 


+ 3.i4tf 


+ 3.10 


+ . 


.013 


+ .018 


May I 


8.3 


-I3.74» 


- 13.78 


+ 


.010 


+ .012 


II 


7.9 


+ ^,^oa 


+- 4.36 


+ 


.022 


+ .018 


4 


II. 9 


— 12.9811 


— 13.02 


+ 


.005 


+ .008 


13 


3.9 


+ 4.80^ 


+ 4- 80 


+ . 


.004 


+ .012 


8 


17.7 


— 12.49a 


- 12.53 


+ 


.008 


+ .006 


13 


8.7 


+ 4.91^ 


+ 4.91 


+ . 


.018 


+ .012 


II 


9.2 


— 11.9911 


— 12.03 


+ 


.006 


+ .007 


14 


10.0 


+ 5 40« 


+ 5.36 


+ . 


.002 


+ .012 


14 


4.2 


— ii.6o« 


— 11.64 


+ 


.014 


+ .010 


14.9 19.7 


+ 5.38^(1) 


+ 5.38 






+ .009 


16 


13.9 


— 10.84/ 


— 10.84 




• 


+ .008 










+ . 


012 












+ 


.003 




17.9 


18.5 


+ 4.15^(1) 


+ 6.21 


+ . 


025 


+ .018 


18 


8.9 


— io.93» 


- 10.97 


+ 


.006 


+ .004 


18 


4.9 


+ 6.51a 


+ 6.47 


+ . 


,012 


+ .016 


21 


II. T 


— io.47« 


— 10.51 


+ 


.005 


+ .005 


19 


7.4 


+ 6.78A 


+ 6.78 


+ . 


010 


+ .012 


22 


7.5 


— 10.43a 


- 10.47 


+ 


.006 


+ .005 


22 


3.6 


+ 7.53« 


+ 7.49 


+ . 


013 


+ .012 


24.9 


2.2 


— IO.OI« 


— 10.05 


+ 


.005 


+ .005 


Mar. 10 


2.0 


+ 12. 89a 


+ 12.85 


+ . 


018 


+ .014 


26 


II. 9 


— 9.84a 


- 9.89 


.^ 


.004 


+ .001 


16 


8.1 


+ 15.48A 


+ 15.48 


+ . 


015 


+ .016 


27 


7.5 


- 9.53^ 


- 9-53 


+ 


.009 




18 


91 


+ 16.23^ 


+ 16.23 


+ . 


017 


+ .016 


30 


13.4 


— 9.20^ 


— 9.20 


+ 


.012 


+ .010 


19 


8.2 


+ 16.62^ 


+ 16.62 


+ 


010 


+ .015 


31 


13.4 


- 8.97/ 


— 8.91 


* 


.000 


+ .006 


23 


9.0 


4-17. 6o>4 


+ 17.60 


+ . 


012 


+ .012 


June I 


9.4 


— 8.8711 


— 8.91 


H- 


.006 


+ .002 


24 


II. 


+ 17. 96^1 


+ 17.92 


+ . 


013 


+ .012 


4 


13.9 


— 8.44» 


- 8.48 


+ 


.016 


+ .010 


30 


12.0 


+ 19.8011 


+ 19.76 


+ . 


,013 


+ .013 


5 


13.3 


-. Z,iie 


— 8. II 




.003 


+ .008 


31 


9.4 


+ 20.06a 


+ 20.02 


+ 


.008 


+ .011 


6 


4.9 


- 8.21/ 


— 8.15 


+ 


,004 


.000 


Apr. I 


9.6 


+20.20^ 


+ 20.20 


+ . 


010 


+ .009 


8 


13.8 


- 7.9011 


- 7.94 


+ 


.012 


+ .007 


3 


9.0 


+20. 71a 


+ 20.67 






+ .008 


9 


15-2 


- 7-65^ 


- 7.65 






+ .002 










+ . 


.009 












— 


.005 




3.9 


0.2 


+20.73« 


+ 20.69 


+ . 


'Oil 


+ .007 


12 


12.5 


- 7.88/ 


— 8.05 


+ 


.003 


.000 


6 


5.5 


+21.2911 


+ 21.25 


+ . 


006 


+ .008 


13 


13.8 


— 8.01/ 


- 7.97 


■^■M 


.002 


.000 


8 


7.6 


+21.60M 


+ 21.56 






+ .008, 


15 


10.9 


— 8.09« 


— 8.04 






— .002 































INTRODUCTION. 



TABLE C.—ADOPTED CORRECTIONS AND RATES OF THE SIDEREAL CLOCK IN i86S~Continucd. 



Mean day and 
sidereal hour. 



1 868. d. 
June i6 

17 
18 

19 
20 

22 

23 

24 

25 
26 

27 

28 

29 

July I 

2 

3 

4 

7 

8 
10 

II 

12.8 

13 

14 

15 
16 

17 
18 

22 

23 

25 
28 



14.7 
14.6 

12. 1 

6.2 

3.7 
0.4 

3.4 

3.5 

5.3 
4.0 

5.7 
3.7 
6.4 

5.8 
2.2 
6.0 
0.9 

2.7 

7.7 
8.0 

3.2 
1.4 
0.6 
3.8 
9.9 
3.6 

6.5 
3.6 
2.8 
6.9 

7.6 
6.6 



u c a 

4> (« o 

^ a ^ 

o E c« 

" t 

u 



X. 

- 7.9I': 

— 8.28/ 

— 8.43« 

— 8.52^ 

— 8.96/ 
— io.48« 

— 11.09^ 

— 11.71/ 

— I2.20» 

—12.46^ 

-13.07/ 
-13.44/ 

-I3.97« 

— 14.67/ 

— 15.01/f 

-15.55^ 

— 16.30/ 

— i8.i6f 

— 18.81/ 
— 20.58*': 
—21.42/ 
—22.62/ 
—22.82/1 
-23. 57^- 
-24.53/ 
-25.71/1 

-25.43^ 
—27.60/ 

— 0.32/ 
-h 0.28// 
-h 1. 17' 
H- 3-69<" 



•2 So 


i • 








9 



^ S 3 

u o« 


2 




w,^ 


c !r 


•0 rt 


^•2 


V c 


^ 


tJ *-• fi 






goo 


^^ 





.Z U lA 


a^ 


-0 





< 


< 
J. 


J. 


J. 




— .002 




- 8.08: 


— .007 


— .005 


- 8.24 


— .007 


— .007 


- 8.38 


— .017 


— .011 


— 8.69 


— .011 


— .014 


— 8.92 


— .026 


— .018 


- 10.43 


— .031 


— .028 


— 11.26 


- .017 


— .024 


— 11.67 




— . .018 


' 


— .018 




— 12.15 


- .017 


— .018 


— 12.63 


— .016 


- .017 


- 13.03 


— .017 


- ,017 


- 13.40 


— .019 


- .017 


- 13.92 


- .015 


- .017 


- 14.63 


— .016 


- .017 


- 14.96 


— .027 


— .022 


- 15.72 


— .028 


— .027 


— 16.25 


— .028 


- .028 


- 18.33 


— .023 


— .025 


- 18.77 


- .034 


— .030 


- 20.75: 


- .033 


- .033 


- 21.38 


- .033 


- .033 


- 22. 58 


— .021 


— .029 


- 22.77 


— .036 


— .030 


- 23.74 


- .037 


- .035 


- 24.49 


— .042 


— .040 


— 25.66 


- .035 


— .040 


— 26.60 


- .045 


— .040 


- 27.56 




— .040 


— 0.28 


-h .022 


-+- .020 


+ 0.33 


+ .018 


-h .020 


-h 1. 21 


-h .018 


-f .018 


+ 2.52 




+ .015 



Mean day and 
sidereal hour. 



1868. d, 

July 29 

30 

31 
Aug. 5 

6 

7 
10 

12 

13 
14 
15 

17 

18 

19 
20 

22 

26 
27 
29 

31 
Sept. 4 

5 
6 

•• 
/ 

8 

10 
II 
II 
12 
16 
16 

17 



17 
18 
18 
20 

19 
19 
15 
14 

15 

15 
12 

20 

13 

iS 

21 

13 

19 

19 
20 

17 

23 

19 
I 

20 

21 

20 

II 

18 

II 

13 

19 
10 



8 
o 



u C c 

£? rt o 

O B c< 

u > 



M E 



^2l 






J. 



+ 2 

+ 3 

+ 4 

+ 5 

-+- 6 

+ 6 

+ 7 

+ 7 

-f- 8 

+ 9 

+ 9 
-hio 

+ 11 



6 '-hii 



7 -H12 



-♦ +13 



I 

5 
6 

o 

o 



o 

2 

9 
3 
7 
7 

9 

8 

3 
o 



+ 14 

+ 16 

-+- o 

+ I 

+ 2 

-+- 2 

+ 2 

-h 2 

-h 3 

-f 3 

+ 3 

+ 3 

+ 4 

+ 4 

+ 5 



81/ 

41/ 
24^' 

94/ 

58.' 

50/ 
83/ 
40/ 

02<' 
31/ 

48/ 

03 

47/ 

If/ 
03/ 

92/ 

37/: 
42/ 

37/ 
81// 

05/ 
42// 

67/* 

10^ 

30/ 

39>* 
70/ 

86/: 

81^ 

00/: 



S •- c 

.2 «i o 

£. »^ 3 

•3'tc 
°82 
o 



I 

u c 



X. 

+ 2.85 

+ 3.42 

+ 4.07 

-H 5.98 

-f- 6.15 

+ 6.41 

+ 7. SI 

-H 7.87 

-h 8.41 

-h 8.85 

-H 9-35 

-h 10.49 

-f- 10.86 

+ II. 51 

+ 12.17 

4- 13.07 

+ 14-96 

+ 15-38: 

+ 16.46 

-h 0.38 

\- 1.86 

-h 2.09 

+ 2.47 

+ 2.57 

+ 2.72 

+ 3.15 

+ 3.31 

■+- 3.44 

+ 3.74 

H- 4.90: 

-f 4.86 

+ 5.01: 



+ 
+ 

+ 



-h 



+ 
+ 
-h 
+ 

+ 



J. 
.013 

.024 

.027 

.016 

.007 

.011 

.016 

.008 

.022 

.018 

.023 

.020 

.021 

.023 

.024 

.023 

.019 

.017 

.022 



+ 

-f 
+ 

-f 
-+- 



+ 



.014 

.011 

.013 

.00^ 

.006 

.009 

.010 

.019 

.018 

.012: 

.007 

.010 



+ 

+ 

+ 

4- 
+ 
4- 



+ 



3 
o 



•3 rt 

H. 

o 

< 



018 
025 
025 
010 
009 
0.13 
on 
016 
020 
020 
022 
020 

022 
024 
024 
022 
018 
018 
020 
014 
012 
012 
010 
006 
007 
010 
M2 
018 
016 
005 
005 
009 



TRANSIT CIRCLE. 



XXXI 



TABLE C— ADOPTED CORRECTIONS AND RATES OF THE SIDEREAL CLOCK IN 1 868— Continued. 







c 



1 




1 


^ 











g 1!. d 
.2 *> 




^ (A 


rly 

1 


Mean day and 
sidereal hour. 


correct 

mean 

rvation. 




u 


d for p 
I equati 




cnt rate 
n group 


cd hou 
rate. 


Mean day and 
sidereal hour. 


correct 
mean 
rvation. 


correct; 
d for p 
1 equati 




ent rate 1 
n group 


ed hou 
rate. 




lock 
from 
obse 


u 




corr' 
sona 




ppar 
twee 


dopt 






lock 
from 
obse 


lock 
corr' 
sona 




ppar 
tweei 


Ok 


-a 


• 


U 


5 






< 


< 




• 





U 




< 


< 


1868. d, h. 


s. 




J. 


4- 


s. 
.006 




j 
J. 


1868. d. 


h. 


J. 


s. 


+ 


.020 


s. 


Sept. 17 20.6 


4- 5.02^ 


4- 


5.07 


4- 


.014 


4- 


.010 


Nov. 4 


19.2 


4-15.42/ 


+ 15.48 


+ 


.022 


+ .021 


18 12.0 


+ 5.25^ 


4- 


529 


4- 


.009 


4- 


.012 


5 


23.5 


-hl6.I2ll 


+ 16.09 


+ 


.029 


+ .025 


18 22.1 


4- 5-36>ft 










4- 


.009 


6 


20.3 


4-16. 72» 


+ 16.69 


+ 


.020 


+ .020 


19 1 1. 9 


+ 5.52/ 


4- 


5.55 


4- 


.011 


4- 


.010 


6 


2.5 


+16.87^ 


+ 16.80 






+ .020 


19, 20.8 


-H 5.58>4 










4- 


• Oil ' 


7 


18.4 


+17.17' 


+ 17.23 


+ 


.022 


+ .021 


21 15.2 


H- 6.07/ 


4- 


6.13 


4- 


• 
.008 


4- 


.010 


9 


2.4 


4-18. 47» 


+ 18.44 


+ 


.015 


+ .020 


21 20.4 


4- 6.15/* 










4- 


.010 


9.9 


13.4 


+ i8.68<- 


+ 18.61 


+ 


.019 


+ .017 


28 14.7 


4- 7.52/ 


4- 


7.55 


4- 


.012 


4- 


.010 


II 


0.7 


4-19.23/ 


+ 19.29 


+ 


.026 


+ .022 


28 19.8 


4- 7.63A 










4- 


.012 


12 


23.2 


+ 19.8911 


+ 19.86 


+ 


.022 


+ .024 


28.9 II. I 


+ 7.74^ 


4- 


7.80 


4- 


.007 


4- 


.009 


13 


22.3 


+20.43<r 


+ 20.36 


+ 


.024 


+ .023 


30 17.9 


4- 7.90/" 


4- 


8.02 


4- 


.008 


4- 


.007 


14 


22.2 


+20.87/ 


+ 20.93 


+ 


.022 


+ .023 


Oct. I 18.8 


4- 8.15/ 


4- 


8.21 


4- 


.009 


4- 


.008 


18 


23.4 


+23.00/ 


+ 23.06 


+ 


.019 


+ .020 


2 20.7 


4- 8.46/* 


4- 


8.43 

• 


f 


.008 


4- 


.009 


19 


0.1 


+23.56» 


+ 23.53 


+ 


.021 


+ .020 


5 23.0 


-MO. 0411 


4- 


9.01 


-h 


.005 


4- 


.006 


21 


17.6 


+24.36/ 


+ 24.42 


+ 


.019 


+ .020 


6 22.4 


+ 9.oqf 


4- 


9.12 


4- 


.006 


4- 


.005 


23 


17.7 


+ 25.3711 


+ 25.34 


+ 


.022 


+ .020 


7 22.7 


4- 9-21/ 


4- 


9.27 


4- 


.008 


4- 


.007 


23 


4.8 


■H25.56/ 


+ 25.59 


+ 


.023 


+ .023 


8.9 II. 2 


4- 9-59« 


+ 


9.56 






4- 


.008 


24 


1.6 


4-25.15/5/ 


+ 26.07 


+ 


.019 


+ .021 


9 13.0 


4- 9-51/ 


4- 


9-54 


4- 


.007 


4- 


.008 


26 


3-1 


+26.99/ 


+ 27.02 


+ 


.013 


+ .015 


X2 22.0 


4-10. I7» 


+ : 


[O.14 


4- 


.Oil 


4- 


.010 


27 


9.4 


+ 27.36/ 


+ 27.42 


+ 


.006 


+ .009 


13 20.0 


4-10.35/ 


4- ] 


[0.38 


4- 


.008 


4- 


.010 


30 


3.6 


+27.82/ 


+ 27.85 


+ 


.002 


+ .004 


16 22.3 


4-10.91/ 


-h ] 


to. 94 


4- 


.007 


4- 


.007 


Dec. I 


4.3 


+27.86/ 


+ 27.92 


+ 


.013 


+ .007 


17 22.8 


+ 11.04/ 


4- ] 


[1. 10 


4- 


.010 


4- 


.008 


2 


2.0 


+28. 1 V 


+ 28.21 


+ 


.012 


+ .012 


18.9 II. 4 


4-ii.52<f 


4- ] 


fi.45 


+ 


.007 


4- 


.009 


3 


0.9 


+ 28.5011 


+ 28.47 


+ 


.007 


+ .010 


22 20.3 


-hll.OIH 


4- ] 


[1. 98 


4- 


.017 


4- 


.015 

• 


5 


23.8 


+28.88>5/ 


+ 28.80 






+ .007 


23 1.8 


+ 12.47/ 


4- ] 


[2.50 


4- 


.009 


4- 


.013 


5 


0.6 


+29.01/ 


+ 29.04 


+ 


.006 


+ .006 


24 22.0 


4-12.61/ 


f ] 


[2.67 


4- 


.007 


4- 


.008 


5 


6.9 


+28.93/ 


+ 28.99 






+ .006 


26 23.3 


4-13- II'' 


4- 1 


[3.04 


4- 


.009 


4- 


.008 


8 


1.4 


+29.41/ 


+ 29.44 


+ 


.012 


+ .OIO 


28 2.6 


4-13.43' 


4- ] 


13.49 


4- 


.008 


4- 


.008 


9 


19.6 


+29.59' 


+ 29.65 


+ 


.007 


+ .010 


29 23.0 


4-13. 72*' 


4- ] 


13.65 


-h 


.016 


4- 


0.12 


10 


4.0 


+29.9111 


+ 29.88 


+ 


.006 


+ .006 


30 20.2 


4-13.96/ 


4- \ 


[3.99 


4- 


.010 


4- 


.014 


12 


20.0 


+30.06/ 


+ 30-12 


+ 


.Oil 


+ .008 


Nov. 2 10.2 


4-14. 87» 


+ 3 


[4.84 


4- 


.019: 


4- 


.017 


14 


4.4 


+30.8611 


^ — «.. 




.006 


+ .009 


3 16.8 


4-15.03^ 


4- 3 


[4.96 






4- 


.020 


I 




3i.28» 








+ .006 



XXXII 



IKTBODUCTION. 



TABLE C— ADOPTED CORRECTIONS AND RATES OF THE SIDEREAL CLOCK IN rS68— Continued. 



• 


1^ 


g ^ (=' 

.2 « 




1 








g »^ e 
.2 « 




i« 


^ 
*£ 


Mean day and 
sidereal hour. 


correct 

mean 

rvation. 


correct 
d for p 
I equati 




ent rate 
n group 


ed hou 
rate. 


Mean day and 
sidereal hour. 


correct 
mean 
rvation. 


correct 
d for F 
1 equati 




ent rate 
n group 


ed hou 
rate. 




^ £S^ 






u u 






-Si^ 


•g fc c 




rt S 






^^0 


088 







•0 




.2^ 


goo 
.Son 








•0 







U 




< 


< 




u 


U 




< 


'< 


1868. d. h. 


J. 


/. 


+ 


.006 


s. 


1868. d. A, 


/. 


s. 


a. 

* 


.006 


s. 


Dec. 18 i.o 


+31. 3«/ 


-h 31.38 


-f 


.012 


+ .009 


Dec. 23 23.4 


+32.72/ 


+ 32.78 


+ 


.011 


-h .008 


19 22.0 


+31.57' 


-f 31-63 


4- 


.012 


-+- .012 


24 2.7 


-H33.i4» 


+ 33." 


+ 


.016 


+ .014 


21 4.0 


-h32.3o» 


+ 32.27 


H- 


.021 


+ .015 


25 3.4 


+33.47/ 


+ 33.50 


+ 


.012 


+ .014 


22 20.3 


-f- 32.5V 


H- 32.61 






H- .oil 


26 22.6 


+33.68/ 


+ 33.74 






+ .012 



April 17. The Kessels clock having been taken down to be cleaned, the observations from then until the night of 
April 27 were made with the Mural clock. 

April 24-27. Owing to the irregularity of the clock rates, the adopted rates are derived from the observations ot 
the day. 

April 28. The Kessels clock brought into use by Mr. Abbe this morning. 
' April 30. This morning the Kessels clock was stopped by the new minute spring put on the scape wheel. The 
spring was removed and the clock started again about 3^ sidereal time. 

May 27. Only a single insufficient observation. 



The following are isolated determinations by Professor Hall, each depending on a single star : 



December 9 


23.5 


29.71 


10 


23.5 


29.75 


12 


1.0 


30.00 


18 


1.2 


31.36 


23 


0.2 


32.87 



TBANSIT CIBCLE. 



XXXIII 



TABLE D.— ADOPTED CORRECTIONS, IN HUNDREDTHS OF SECONDS OF TIME. TO THE POSITIONS 

OF CLOCK-STARS IN THE AMERICAN EPHEMERIS FOR 1867. 



a Andromedae 
y Pegasi 
/? Ceti . 
c Piscium 
0» Ceti . . 
rf Piscium 

Piscium 
/? Arietis 
a Arietis 
65 Ceti . 
y Ceti . 
a Ceti . 
C Arietis 
7 Tauri 
C Persei 
)'* Eridani 
y Tauri 
e Tauri 
a Tauri 

1 Aurigae 

11 Ononis 
P Ononis 
fi Tauri 
6 Orionis 
a Leporis 
e Orionis 
a Columbae 
a Orionis . 

Geminorum 

Geminorum 

Canis Majoris 

Canis Majoris 

Geminorum 
o* Geminorum 
a Canis Minoris 
/3 Geminorum 
Geminorum 
15 Argus 
e Hydrae . 
K Caneri 

Hydrx . 

Leonis . 

Leonis . 

Leonis . 
7* Leonis 
p Leonis . 

Leonis . 

Leonis 

Crateris . 
T Leonis . 
91 Leonis {v) 
p Leonis . 
Virginis 
J7 Virginis 
P Corvi . 

12 Canum Venaticorum 
6 Virginis . . . 



7 
a 

c 

6 



a 
e 

a 



I 
6 
6 



+ 



-I- 
4- 



+ 



-h 



o 

2 

3 
5 
o 

5 

4 
I 

I 

3 
o 

2 

3 
I 

o 

3 
2 

o 

o 

3 
4 
I 
I 
2 
2 
I 

— 6 
o 
o 

o 

_ 7 

— 2 

— 3 

+ 20 

— 2 
o 

— 4 

— 2 

o 
o 
o 

— I 

5 
I 
2 

4 

7 

2 

o 
I 
I 
I 
6 
I 
6 
I 

3 



+ 



4- 



+ 



-f 






a 

c 

a 

f 
a2 

/3 

/'^ 
a 

a 
e 
6 
/?* 

a 

c 

ai 

<i 

a 

^ 

I 
a 

/3 

c 

d 

6 

K 

a 

/3 

r 
rt» 

c 
a 

c 

I 

/3 

c 

a 

e 

7 

c 

a 
a 
I 



-h 



-H 



-f 



+ 



+ 



Virginis -h 

Virginis 

Bootis — 

Bootis + 

Bootis — 

Librae — 

Librx — 

Bootis 

Coronae Borealis ... 

Serpentis 

Serpentis — 

Scorpii 

Scorpii + 

Ophiuchi + 

Scorpii 

Ophiuchi 

Ophiuchi 

Herculis 

Ophiuchi 

Ophiuchi 

Herculis 

Sagittarii 

Sagittarii 

Serpentis 

Aquilae 

Lyrae 

LyraB 

Sagittarii — 

Aquilac + 

Sagittarii — 

AquilsB -H 

Aquilae 

Aquilae -h 

Aquilas -f 

Aquilas 

Aquilae — 

Capricorni 

Delphini 

Cygni 

Aquarii 

Cygni — 

Pegasi — 

Aquarii 

Aquarii — 

Pegasi — 

Capricorni — 

Aquarii — 

Aquarii — 

Aquarii — 

Aquarii 

Pegasi -h 

Aquarii + 

Piscis Australis ... — 

Pegasi -h 

Piscium — 

Piscium — 



+ 



-h 



I 
o 

3 

I 
2 
I 
o 
o 
o 
I 
o 

5 
2 

2 

5 

3 
o 

o 

I 

o 

3 
2 

I 

4 
o 

2 

2 

4 
8 

I 

o 

I 

I 

o 

9 
o I 

I 

o 

2 
I 

8 
o 

2 
2 

5 
I 

I 

I 

o 

4 
6 

I 

I 

2 

2 \ 



THE MERIDIAN TRANSIT INSTRUMENT. 

• •••■ ••••• 

The observation of the Moon and jilanets baviug been transferred to the Meridian Circle, the 
Transit Instrument was eniploye<l in the observation of stars whose position in declination had been 
previously determined by the Muial Circle or the Prime Vertical TranJ^it Instrument, observations 
of which instrument, in jight asceaision, were not deemed sufficiently accurate for publication. 
The method of observaticm was that used in previous years, but int^uiitted for the past two years 
with this instrument* . . 

The transit system consists of live groups or tallies of vertical threads, and in addition to these 
there are three vertical threads, movable by a micrometer screw, and two stationary horizontal 
ones. With the clamp end of the axis to the east, the tallies are named ill the order of the transit 
of stars above the pole A, B, 0, D, and E. . 

The tally over which an object has be<Mi observed is shown by the inspection ofjthe intervals 
between the threads. The individual threads of each tally are designated by the numbers 1, 2, 3, 
4, 5, for A, C, and E, and 1, 2, and 3 for B and D respectively. One vertical thread, A^, is outside of 
tally A, and another^ Eg, is outside of E. These two, with A^, Bi, Ca/.Da, aiid Ei, constitute a system 
over which transits with -eye and- ear may be conveniently observed; • • 

From the mean of a number of obsei^vations of Polaris and(Jtrr8aeMiiiori8, theequatorial intervals 
between each thread-and- the mean -of- Bi, B2, B3, Ci, C2, C3, C4, C5, Dj, D2, Da? were found to be as 
follows, the notation .corresponding lo cliimp east: 

.'.'.'. igUATORIAL INTERVALS. • 



1 Thread. 

! 


1 

Interval. 


Thread. 


Interval. 


1 
Thread. 


Interval. 


1 Thread. 


1 

Interval. 

• . . 

1 
J. 


Thread. 


Interval. 


i 


•f- 1 


J. * 




1 
J. 


• 




s. 


Ai 


+ 35-^^28 


• ■ 


■ • « 


c, 


+ 2.197 


Di 


-11.869 


El 


-30-231 


A, 


+ 34.493 


* • 

• ■ 


■ • • 


Ca 


+ 1.218 


• D2 


— 12.956 


E» 


— 32.641 


A3 


+ 33.0S4 ; 


Bi • 


+ 15.021 


C3 


—0.003 


D, 


-14.978 


E3 


-33. 888 


A4 


+31-836 


B, 


+ 12.966 


C^ 


-1. 188 ! 


• • 


. 


E4 


•-35. 137 


A5 


+29.762 ' 


B, 


-h 1 1 . 808 


Cs 


—2.222 , 


• 
• • 


• • • 

• • • 

1 


E5 


-36.365 



The intervals for A,, and Eg, not having been used, are not given. 

The times of transit of all objects more than 5° distant from the pole were recorded by means 
of the Morse register. 



INSTRUMENTAL ERRORS. 



Aided by a collimating eye-i>iece, the error of level and coUinjatiou were obtained by reversing 
the instrument over a basin of mercury, and measufing with the micrometer-screw of the eye-piece 
the distance between the central thread and its image seen in the mercury. . If we represent by 2J 
the distance of the central thread west of its image when the clamp end of the 'axis is east; by 2 J*, 
the same quantity, when the clamp is west; by p, the excess of the radius of the clamp-pivot 
divided-by the distance between the pivots; and by — r the reduction of the central thread to the 
mean of the system Bi, B2, B3, Cj, C2, Ca, C4, C5, Di, D^, D3, and by a the correction for diurnal 
aberration --= — O.'^OIG in this latitude, we have : 

c= J (J — J') — p-if r — a, for clamp east. 
c = — J (J — J') + 1) + r — a, for clamp west. 
h = — J(J + J*) — 2?, for clamp east. 
5 = — ^{^ + J^) +p, for clamp west. 



THE MERIDIAN TRANSIT INSTRUMENT. 



XXXV 



The value ofp, as determined in 1864, iWas p = + 0*^8 ; the numerical value of r for tlie current 
year is r = O*.0O. All tbe observations fpr determinjug the errors of collimation and their riesults 
are given in the subjoined table, in which r, the value of a revolution of the micrometer, is l"./i805. 
When great changes occur in the values of c between consecutive dates, they have been caused by 
adjustment with the collimating screws. 



Date. 


1 

1 


2X 


2 A». C. E. 


c.w. 


Date. 


2 A. 


1868. 


1 


r. 


1 
r. ; s. 


s. 


1868. 


f. 


March 


18 


—0.32 


.—0.70 -ho. 131 


—0.163 


August 9 


—0.32 


March 


31 


0.25 


0.55 0.099 


0.131 


August 27 


0.24 


April 


17 


0.05 


0.31 0.083 


0.115 


September 2 1 


0.00 


May- 


21 


0.24 


0.52 0.091 


0.123 


October 22 


-0.18 


June 


13 


0.50 


0.69 0.055 


0.087 


November 13 


+0.25 


July 


4 


—0.62 


—0.83 -1-0.063 

1 
r 


-0.095 







2A1. 



r. 

-0.33 
0.40 
0.15 

—0.00 



C. E. , C. W. 



J. 

—0.017 

+ 0.043 

0.039 

0.051 



s. 

-0.015 

0.075 

0.071 

0.083 



-1-0. oS -fo.047 —0.079 



When observations to determine the value of c are tolerably accordant on successive dates, a 
mean is adopted for the whole period of such accordance; and where the differences are too great 
to permit inference that they may be due to errors of observation, the changes are assumed to have 
been uniformly progressive. 

The values used in the rediictious are stated at the bottom of each page of the printed obser- 
vations. 

The distance which the line of collimation passes from the pole and the point in which the me- 
ridian intercepts the equator, are used instead of errors of level and azimuth. \Vhen the error of 
collimation is known, the first distance is directly obtained by observations of stars very near the 
pole, and may be represented by n. The second distance is determined by combining the value of 
n with the error of the level. Designating the latter by fc, the latitude of the observatory by ^, and 
representing this second distance by m, we obviously have: 

m = — n tangent ^ + h secant f ; 

and the correction applicable to the observed transit of any star, to reduce it to the meridian, will 
be obtained by the formida : 

Correction =m + n tangent 3 + c secant S ; 

in which <J represents the apparent declination of the star. 

An approximate clock error having been first obtained from one or more equatorial stars, tiie 
value of n was determined generally by comparing the time of transit of Polaris, S Ursie Minoris, 
i Ursa Minoris, or 51 Cephei, with the right ascension given in the American Ephemeris and Nau- 
tical Almanac for tbe year 1870, reduced to the date of the observation. 

The value of n, found in this manner and used in the reduction of the stars, is published in the 
table at the bottom of the page ot the published observations, under the head of corrections, &c. 

It will be readily seen that if m is neither large nor subject to great variation, it will be elimi- 
nated through the clock error. It has not been used separate frona the clock error except when 
the instrument was used for regulating the mean time of the observatory, and is therefore not 
published in its usual place. 

The clock error was obtained from the corrected transits of one or more of the standard stars, 
whose mean place for 1870.0 is given in the American Ephemeris. 

The apparent place of these stars for the date was taken from the Ephemeris for 1808. 

The clock used in observing during the year was that of Charles Frodsham. 

EXPLANATION OF THE PRINTED OBSERVATIONS. 

Column 1 contains the date and initial letter of the observer's name, the day commencing at 

apparent noon. 

Column 2 contains the name of the object, or its approximate declination. 



XXXVI INTRODUCTION. 

The followiug system for iiouiendatare was adopted : 

1. By the constellation and Bayer letter there given. 

2. By the constellation and Flamsteed narober there given. 

3. By their namber in the catalogue. 

Other stars found in published catalogues are designated by the name and namber in the cata- 
logue. 

Column 3 contains the number for reference. 

The following abbreviations occur : 

O. Arg. N. — Oeltzen's Catalogue from Argelander's Northern Zones. 

0. Arg. S. — Oeltzen's Catalogue from Argelander's Southern Zones. 

Weisse (2) for Weisse's Catalogue from Bessel's Zones, from 15 to 25 degrees of north declination, 

Some anonymous stars, used in thecomparisonsof the equatorial, are denominated by a number, 
followed by the letter W. 

Columns 4 to 14, inclusive, contain the seconds and tenths of the transits over the several 
threads, as noted by the observer at the time, or as subsequently read from the chronographic 
record ; but as there are twenty-one threads, over each of which observations were taken at different 
times, the nambers over the columns may not represent the thread at which a star was observed, 
and this can only become known by comparing the observation with the equatorial intervals. 

Column 15 contains the minutes, seconds, and decimals of a second obtained by taking the 
mean of the preceding times of transits over the threads observed. 

Column 16 contains the sum of the corrections necessary to reduce the numbers of the pre- 
cetliug column to the clock time at which the object crossed the great circle passing through the 
pole, and the point in which the line of coUimation intersects the equator. It consists of two parts : 

1. For broken observations of stars, from the mean given in column 15 to the mean of the 
threads Bi, B2, B3, Ci, C2, C3, C4, C5, Di, D2,.D3, by the formula — 

R — equatorial interval x secant d. 

Or if the star was so near the pole that the difference between the sine and arc of the reduc- 
tion was sensible — 

Sin E = sin equal int. x sec. J. 

2. The correction for coUimation and polar azimuth computed by the formula. 

Correction = n tan d + c sec. ^, 

of which the method of obtaining the factors n and c has already been stated. 

Column 17 contains the correction for clock errors, obtained as stated, and brought forward to 
the instant of observation by the rate. 

Column 18 contains the apparent right ascension of the object observed, obtained from the sum 
of the three columns immediately preceding. 

Column 19 contains the corrections applicable to the preceding column to reduce the observa- 
tions of the stars to their mean places, 1870.0, or the instant when the sun's mean longitude was 
280°. These were computed from "constants for the reduction of fixed stars," given in this volume, 
and in the preparation of which the coefficients are the same as those used in the American Ephem- 
eris and Nautical Almanac. The corrections include no proper motions except those used in the 
list of time and azimuth stars. 

There will be found at the foot of the page the adopted clock and instrumental corrections, 
observations of the reflected image of the middle thread, position of the clamp E or W, and such 
notes as the observations called for. The sevenil observations of each fixed star reduced to its 
mean place for 1870.0 are collected in pages 305-^397. 

As a general rule, the results for the fundamental stars are not given when there were less than 
four observations in the group used for determining clock errors. 

The magnitude of ea<;h star, when estimated by the observer at the time of observation, is 
given in the tables. 

The observations of the year with this instrument were made and reduced by Professor 
Yaniall. The observations were copied by Captain Whiting and Professor Nourse, the computations 
were checked by Professor Beecher, and the list of mean places was made out by Mr. Frisby, "Aid.'* 



THE MURAL CIRCLE. 



During tlie year 1868 the Mural Circle was employed in observations of stars whose right 
ascension had been previously determined by the Transit Instrument, their determination in decli- 
nation being necessary to complete their position, to be published hereafter in a General Catalogue. 

MICROMETER AND TRANSIT WIRES. 

The diaphragm inserted in October, 1804, was in use throughout 18G8. The intervals of the 
threads were as follows : 




2. 



3. 



s. 



s. 



s. 



Interval . ; +53.6 +40.6 -1-28.8 



jr. 
+ 15.7 



s. s. s. 

-1-3.3 -I-I.6 0.0 



4. 



s. 

-1.7 



VI. 



VII. 



VIII. 



IX. 



J. s. I s. s, I jr. 

— 3.5 —16.3 \ —28.8 —40.8 —52.9 



The same value for the micrometer screw was used as during the last year : r — 31".341. 

INSTRUMENTAL ADJUSTMENTS. 

The following notes, bearing on the adjustment, &c., of the instrument, have been extracted 
from the observing books : 

January 22. Cleaned and adjusted microscopes D and F. 

February 17. Adjusted focus of micrometer F. 

March 2. Found the graduated screw-heads of microscopes A and C rather loose ; tightened 
them. 

March 20. The telescope was moved on the circle so as to make the nadir reading =100o. 

April 4. Adjusted the focus of the object glass; afterward adjusted the microscopes. 

April 13. Adjusted the inclination of the horizontal threads. 

June 8. The eye-piece struck against wood- work of screen. 

July 13. Struck the eye piece a slight blow: 

October 7. Mr. Gardener cleaned the circle and repaired the telescope micrometer. 

October 8. Adjusted the telescope micrometer head with reference to the comb. 

October 30. Changed the azimuth. 

THE NADIR POINT. 

For determination of the nadir point a cap is provided which fits loosely over any of the eye- 
pieces of the telescope. Just above the eye-lens the cap has a plate of thin glass inclined at an 
angle of 4oo. This aiTangemeut has the advantage of enabling the observer to collimate without 
removing the eye-piece used in observation, and thereby both avoids the risk of injury to the 
threads and prevents the frequent admission of dust by air currents, &(j.. 

The mode of observation is as follows: the circle telescope is so pointed that when the nadir 
divisions of the former are accurately under the zeros of the microscopes, the images of the horizon- 
tal threads in the field of the latter may be seen at a small distance from the threads themselves. 
The circle microscopes are read then, or at the conclusion of the reflection measures. 

The micrometer reading for the true nadir being that which corresponds to the coincidence of 
each thread seen directly, with the image of the other seen by reflection, the images were alternately 
made to measure, on. each side of the threads, spaces equal to their distance apart. As the nadir 
point thus determined always depends upon the same set of divisions of the circle, and is ma<?' 
with the same part of the micrometer screw, it is uniformly affected with the errors of those " 
sions and by any inaccuracy peculiar to that portion of the screw. 



XIXYUl INTRODUCTION. 

METHOD OF OBSERVING. 

The method of observing was the same as in previous years, and consisted essentially in trans- 
ferring the subdivision of the circle from the microscopes to the micrometer eye-piece. The circle 
was set so that the divisions nearest to the reading for the given declination were as accurately as 
possible under the zero of the microscopes. The circle microscopes were read either before or after 
the observation. 

The observations of Professor Yarnall and Mr. Doolittle were made by bisecting the objects 
with the southern horizontal thread, whilst Mr. Frisby observed them at an equal distance from 
each of the horizontal threads. For bisection observations the nadir reading was corrected by the 
quantity — 0M20, the estimated half distance of the horizontal threads, made from a great number 
of observations. 

EXPLANATION OF THE PRINTED OBSERVATIONS. 

Columns 1 to 3 and 7 to 12 need no explanation beyond that given in former years. The mag- 
nitudes in column 4 are those estimated by the observer at the time of observation. 

Columns 5 and 6 show the number of micrometer readings, generally three for each star, and 
the transit threads over which these readings were made. When the number of micrometer re^uliugs 
does not correspond to the number of threads included between the limits given in column G, it is 
understood that the observations were made at equal intervals between those limits. 

Column 13 contains the mean of the six microscope readings. 

Column 14 contains the mean of the observed micrometer readings. 

Column 15 contains the adopted " nadir correction," expressed in micrometer n^volutions. It 
is formed by substracting the excess of the micrometer reading above 30 revolutions from the excess 
of the mean circle reading above 270o, and after March 20, above 100^, the reading of microscope 
A when the telescope pointed to the nadir, that excess being first expressed in micrometer revolu- 
tions. 

Column 16 gives the corrected meridian micrometer reading formed b}' applying the following 
corrections to column 14 : 

1. The nadir correction. 

2. The reduction to the meridian. For observations made on any of thfe vertical wires, the 
reduction is given by the formula 

sin^ ih . 
2 r sin 1" ' 

't ^ iixg the equatorial interval in arc of the vertical wire, and r the value of one revolution of the 
micr^^'aeter. Expressing h in seconds of time, and putting for r its value, already given, this ex- 
pn'ssi«m becomes 

Jm = — [5.2405] ¥ tan (J, 

the value of which, for diflferent wires, is tabulated on pages xxxii, xxxiii of the Introduction to 
the Washington Observations for 1863. 

For stars near the pole, the time having been recorded, this expression becomes 

. ^*jO sin 1 ao • o » 

t being the true sidereal time of observation and a the right ascension of the star. 

3. The correction of unsvmetrical observations for inclination of the micrometer threads to the 
horizon. This was 

January 1 — Ajml 4 i = 0.00 

April 8-11 1 = + 2.44 /* 

April 15— June 10 i== 0.00 

June 10 — December 25 i = — 0.17 /* 

i denoting the correction for inclination in thousandths of a micrometer revolution, and h the equa- 
torial interval in seconds of time. 



MURAL CIRCLE. 



XXXIX 



Columns 18, 19, and 20 contain the reading of the Xewman barometer, its attached themome- 
ter, and the external thermometer. The external thermometer is designated No. 3 in the Appendix 
to the Washington Observations for 1845, page 54. It is placed outside of the north aperture, sev- 
eral inches beyond the wall, and is read by the help of a sextant telescope attached to the window 
frame. 

Column 21, entitled ^^Instrumental corrections," contains the micrometer equivalent, or the 
difference between the corrected micrometer reading and 30 revolutions converted into arc. If the 
former quantity is denoted by w, the values in this column will be given by the formula, 

Corr. = (30 rev. — m) r 

Column 22 contains the apparent zenith distance, equal to the sum of columns 13 and 21, 
diminished by 90° if the sum be greater than 90^, or subtracted from 90^ if less. In the former 
case the result is marked S, as south ; in the latter K, as north. 

Column 23 contains the correction for refraction corresponding to the apparent zenith distance 
and the barometer and thermometer readings. This quantity is computed from Bessel's tables, as 
given in an expanded form in the Appendix to the Washington Observations for 1845. This correc- 
tion, added to the apparent zenith distance, gives the corrected geocentric zenith distance, which 
is not printed. 

The following corrections are applied to the thermometer readings for irregularities in the bore 
of the tube: 

CORRECTIONS OF THERMOMETER, 



Ther. scale. 


Corr. 


A log. ref.- 


Ther. scale. 


Corr. 


A log. ref. 


' 















30 


—0.04 


-f .00004 


66 


-h0.20 


— .00016 


32 


- .06 


4- 5 


68 


+ .25 


- 21 


34 


— .11 


+ 10 


70 


+ .22 


- 18 


36 


- .08 


-1- 7 


72 


+ .12 


— 10 


• 38 


- .05 


+ 4 


74 


-f .03 


- 3 


40 


— .02 


+ 2 


76 


— .01 


-f I 


42 


— .01 


-h I 


78 


- .04 


■+- 3 


44 


.00 





80 


- .04 


+ 3 


46 


- .01 


-f I 


82 


— .01 


•+■ I 


48 


— .03 


+ 3 


84 


.00 





50 


- .04 


+ 3 


86 


— .06 


■f 5 


52 


- .03 


-h 3 


88 


— .12 


-h 10 


54 


- .01 


-H I 


90 


- .14 


+ II 


56 


- .01 


-f I 


92 


- .14 


*+ ". 


58 


- .03 


-f 3 


94 


- .14 


-h II 


60 


.00 





96 


- 13 


+ II 


62 


-h .05 


- 4 


98 


— .12 


+ 10 


64 


+0.12 


— .00010 


100 


—0.12 


-f .00010 



• Column 24 co]>taius the declination of the star, using the assumed north latitude, 38^ 53' 39<^25. 
Column 25 contains the reduction from the apparent declination at date to the mean declina- 
tion for 1870.0. 

It was computed by Bessel's formulae, with constants prepared from the logarithms A, B, C, 
and D of the American Ephemeris and Nautical Almanac, and, in addition to the terms ineUided 
in that work, it includes also those depending on twice the Moon's longitude. Corrections for 
proper motion have not been applied to any star. 

Column 25 contains the initials of the observers' names : 

Y. denoting Professor M. Yarnall. 
D. denoting Mr. M. H. Doolittle. 
The observations were reduced by Mr. Doolittle. 



THE EQUATOR-IAL. 



This instrument was employed during the year 18G8 in observing comets, the minor planets, 
and stars in the group Pnesepe. The eouiets of Brorsen and Encke were observed, and the follow- 
ng minor planets : 

Proserpina, ® Leda, (*^ 

Ariadne, '^j Eugenia, (^ 

Alexandra, m) El pis, (») . 

Echo, g; Angelina, @ 

Freia, (?«) Sappho, (^ 

Undina, f§) Arethusa, @ 

lanthe, Smj Helena, (loi) 

Miriam, rtoa) Dione, @) 



The results of these observations will be found on pages 321-^28. Under the head of the 
object observed, the first column gives the date of the observation and the sidereal time, from which 
and the right ascension the hour angle is obtained, which is necessary for computing the parallax 
and the differential refraction. The next column contains the correction for differential refraction. 
Under the heads of a and 5 are given the apparent right ascension and declination corrected for dif- 
ferential refraction but not for parallax. The quantities denoted hy I J p are the logarithms of the 
parallaxes multiplied by the distances of the object from the earth. The two last columns are used 
to designate the star of comparison and the observer. 

Under the head of "Comparison stars'' are given the date and the mean time of the observa- 
tion, the mean right ascension and declination of the star of compjirison for the beginning of the 
year and the reduction to the apparent place on the day of observation, the authority on which the 
adopted position of the star depends, and the number of comparisons. In this last column the first 
number indicates the number of wires observed in right ascension, and the second the number of 
bisections in declination. The last column gives the result of comparison with the Epheraeris taken 
in the sense the computed minus the observed place. The letters B. J. denote the Berliner Jahrbuch, 
and A. N. the Astronomische Nachrichten. 

In this way it is hoped that sufficient datii are given for a revision of the reductions, if it should 
be necessaiy. The quantities upon which the observed positions essentially depend are the sidereal 
time of observation and the observed differences of right ascension and declination 5 and these being 
found by taking the mean of several values that differ but little from each other, the chance of 
numerical error is slight. The accura(jy of the deduced positions will of course depend on that of 
the stars of comparison, and for this year many of these stars have been determined with the Transit 
Circle. 

All the observations were made with the filar micrometer and with bright wires on adftrk field. 
Previous to this year a system of five wires has been used for observing differences of right ascen- 
sion — a wire near the middle of. the field and two on each side of it, at distances of 8 and 12 
seconds. These wires are rather coarse, and retlecting a good deal of light into the field, they made 
the observation of a faint object very difficult at the outside wires. For this reason the two wires, 
distant 8 seconds from the middle wire, were removed at the beginning of the year. In other 
respects the reticule remains the same as in former years. The value of one revolution of the 
micrometer was assumed to be lo''.337, and the power used was 132. 

The observations have been made and reduce^l by Professor Hall. 



OBSERVATIONS 



WITH THE 



TRANSIT CIRCLE 



1868, 



SUMMARY OF THE PRINCIPAL CONSTANTS USED IN THE REDUCTION OF THE 
OBSERVATIONS WITH THE TRANSIT CIRCLE DURING THE YEAR 1868. 



Approximate distance of wires I to VII ^^%^' 

One revolution of the microscope micrometers 30" 

One revolution of zenith distance micrometer i5".320-f o".o68 (n— 30) 

CORRECTIONS FOR INCLINATION AND DISTANCK OF WIRES. 



V^ertical 
wire. 



I. 

II. 

III. 

IV. 

V. 

VI. 

VII. 



Inclination 

of central 

wires. 






n 

1-25 
0.83 
0.42 
0.00 
0.42 
O.S3 
1.25 



Correction for 




Wire 


1 A. 






1 


h 




+■ 


2 


35. 


02 


-f 


2 


34. 


72 


+ 


2 


34.42 


+ 


2 


34- 


12 


+ 


2 


33. 


82 


f 


2 


33. 


52 


+ 


2 


33- 


22 



Correction for 
Wire B. 



// 



— 2 26.94 



2 


27. 


67 


2 


28. 


40 


2 


29. 


14 


2 


29 


.88 


2 


30 


61 


2 


31 


34 



Constant ^ -'^^^^^ *o reduction to meridian ) g^ 

( Subtracted from zenith point correction \ 

m 

O / // 

Adopted latitude of the instrument ... 38 53 38.80 

J. 
One division of hanging level 0.058 

Position of the instrument. Clamp east. 

Circle B, on the west end of the axis, was this year used in observation, its zenith reading being 0°. 

In reversing the instrument the notation of the transit wires is also reversed, so that the wire first 

reached by an equatorial star is always called wire I. 



OBSERVATIONS WITH THE TRANSIT CIHCLE. 



DATE. 



i86S. 
Jan. I 



8 
9 



lo 

13 

29 
30 



31 



B 

5z: 



I 

2 

3 

4 

5 
6 

7 

8 

9 
10 

II 

12 

13 
14 
16 

16 
17 

18 
19 

20 

21 
22 

23 
24 

25 

26 

27 

28 

29 
30 

31 
32 

33 
34 
35 

36 

37 
38 
39 

40 

41 
42 

43 
44 

45 
46 



OBJECT 



Neptune, E. & E. . 
Anonvmous.E.&E. 

Polaris . 
// Pisclum 

* Tauri . 

Anonymous 
I Aurigx 

a Lyrsc 

Neptune, E. & 
Anonymous 
Polaris . 
fi Piscium 

Neptune . 
Anonymous 

Neptune . 
Anonymous 

a Lyr«c 

Sun I, N. . 
Sun II, S. . 
Venus I, (centre) . 
Venus II . 
Polaris . 

Moon I. S. 
o Piscium 
fi Arietis . 
a Arietis . 
51 Cephci . 






(^anis Majoris 
(reminorum 
(leminorum 
Ursjc Minoris, 
Polaris, S. P. 



a Virginis 

C Virginis 

17 Bootis . 

/i Librx . 

Sun I, N. . 

Sun II. S. . 
V^enus I, S. 
Venus II, N. 
Polaris . 



o 
a 



Piscium 
Arietis . 



S.P 



a> 



tn 

o 



N. 

N. 

A. 
A. 
A. 
A. 
A. 

A. 
A. 
A. 

H. 

N. 
N. 
H. 
A. 

N. 
N. 

N. 

N. 

N. 



N. 


I 


N. 


I 


N. 


I 


N. 


I 


T. 


2 



T. 
T. 
T. 
T. 
A. 



A. 
A. 
A. 
A. 
A. 

A. 
A. 
A. 
A. 

N. 
N. 
N. 
N. 
T. 

T. 
T. 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



I 2; X 






I. 



II. 



III. 



IV. 



V. 



I I 

VI. VII.VIIMX. Mean wire. Inst. 



Clock I Clock I 
appar'nt. adopted.; 



Apparent R.- ^ "<r 
Ascensfon. r i: 



3 
3 



2.7 15.027.4 
7.820.032.244.6 



3 
3 



. . 26.038.2 50.5 
. . ,30.943.1 55. i 



. . 56.0 19.544.0 7-5 33.0 . . 

17. 720. 422. 0; . . I . . I . . '38.840.5 

20.328. 530. 432. 634. 7 . . 

52.2' . . 



47-^50.5 



57-9 



43.2 



m. 



s. 



s. 



\ 



10 



f 24 



. . 56.4 58.41 0.7 2.8. 5.1.. 

I 



9.210.913.6^ ^20 



I 



s 



7.3 . . 17. 221. 5 . . ,26.2 32 



3 15.4 18.520.6 . . 



. . 25.327.730.232.6 



. . 40.I4I.544.S f^g 



35.0 . . 



3 15.6 18.820.628.6,31.233.941.643.7 



\ 



• • • • 

• • • • 

I 

43.70-1-24.27 

30.46 — 0.0() — 

I I 

0.6S — 0.02 — 

I 

1 I 

12.20 f o.oS 

30. 15 -h o. 16 — 



s. 

5»3 

5.15 



s. I h. m. s. 



* s 



s. 



5,19 III 2.7> + 0.12 

5. 19 ' I 24 25.21 — o.ii 

5.20 4 20 55.46 — 0.05 



24.937.149.4 1.7 13.926.038.4 
29.041.5 53.8 



3.0 



26.0 



17.820.422.028.4 



6.0 18.3130.542.9 
50.0 16.0I38.0 



30.5 



40.3550 4.8 
30.042.454.8' 7.0 



36.048.2 0.6 
31.043.355.6 



32.638.840.5 



17. 1 29.24T.5 
I9.i;3i.543.-'^ 



I2.925.i37.4'49.7 
7.920.032.244.7 



43.3 



54.657.959.7 7.6 10.3 12.9 20.6 22.6 26. (»i 



6.0 9.0 10.5 16.6 18.9,20.8 27.02S.S 31.6 

44.445.S4S.6, 1.714-4 



2 

3 



51. 254. 1 55. S 

0.5 
49.0 



2.6 
0.0 



4.7 0.7 



44.0 

49.5 
12.3 

7.21 9.9 11.520.322.4 

30.232.834.841.143.2 



12.3 13.8 16. .J 
8.7 . . 
52.0 . . 



52.0,53.8' . » 1.9 . . 10.3 II. 9 14.5 
15.0 i6.7l22.6'24.626.6 33.034.7 37.0 

24.6 28.8130.633.4 

45.652.0153.956.8 

24.0 



48.351.453.3 0.2; 2.2; 4. 411. 3 13.2 15.6 

1. 41 4.I1 5.612.214.216.423.225.127.6 

11.6 14,2 16.1 22.825.1 27. 134. 336. 038.8 

i 37. 0.58. 038. o| 4.o|i7.ol . . I . . ] . . I . . 

. . 38. 015. 045. 018. 051.0 5.0 5.019.0 



I 

I 

2 
3 



1.7 

45.1 
10.2 

41. 1 



4.3 
47.7 
12.7 

43.6 



6.0 12. 1 



49.5 
14.2 

45.2 



;ll. 6:14.1,15.4 



2 28.330.8 
I 25.728.5 
I 



II. 7 



14.2 



29.632.4 



32.6 



55.4 



14.2 



16. 1 22.7 24.1 



57.559-6 5.^ 7.0 



20.723.1 
51.353.2 



22.3124.5 



25.1 

55.3 

26.4 



31.733.4 



1.4 



33.1 



38.841.243.249.7 



29.91 • . 



. . 46.4 



3-1 

34.4 
51.2 



26.6 

9.9 

36.1 

5.5 

37.0 
54.1 



47.S50.5 



34. 836. 838. 8'40. 743.0 . . 
7.030.053.019.0' . . 



15.8 22. 1 24.226.232.333.836.4 
34. 1 40. 7 42. 9 45. 1 51. 7 53. 3 56. 2 



. — 5.20 4 32 7.0**^-0.43 

5.24 — 5.20 4 48 25.11 -h O.ol 



46.9 32 31.21-}- 0.20— 5. II — 5.16 18 32 26.25— U.O; 



48 

54 
10 

24 



1.63 — 0.06 
5. 98 — 0.05I 

50.60 4-14.22; 

30.48 -h 0.02 



48 
54 



4.77 
<>.93 

12.84 

7.81 



- 5.19 



49 

51 

51 

51 
10 

I 

38 
47 
59 

38 

3 
12 

45 

55 
10 

18 

27 

48 

9 

53 

55 

55 

55 
10 

38 
59 



1 8. 80— 0.6.4 

35.81 — 0.6.4 

3.93 — 0.51 

4.64 — 0.51 

24.72 -1-12.26 

i 

1.99- 0.39 

24.72— 0.35 \ 

20.24J— 0.27 4- 

43.3''^j- 0.25 + 
9.o<j^ 4.34 



5.16 
5.16 



I 10 59.0(»i-l- 1. 12 
I 24 25.34-1- 0.0^ 



1 



2.21 

14.42 

25.11, 
29.14 

41.98 

14.20 

57.48 
23.02 

53 30 

24 . 36 
41.10 

38.13 
38.82 

30.55 



+ 0.9S 
-H 0.98 

f 0.99 
+- 0.92 



f 0.92 

0.81 -I- 0.93 

0.98 i-h 0.93 

1. 00 -|- 0.93 

-h 1. 10 



20 49 19. 14I 
20 51 36.15" 
22 51 4.41. 
22 51 5.12- 
I 10 37.90 — 



1.41 



— 0.52 

— 0.22,+ 

— 0.19-h 

— 1 1 . 0() 

— 5.10 



1.22 
1.23 



0.32 
0.26 

o. 19 



4- 

-h 
-h 
-h 






i.io + 

1. 18 ^-»- 



— 0.29 -H 



— 0.27 

— 0.27 

— 0.22 

— 0.22 
+ 7.52 



24.08 — 0.13 
42.90 — 0.06 



1. 18 
1. 13 






1.26 
1.28 



i 
.4- 

+ 
-h 
4- 
-h 

-h 
-h 



.11 
.11 
.12 
.12 
.19 

.19 
.19 
.20 
.22 

.28 
.28 

.31 
.31 
.33 

.27 
.27 



I II 2.52|-h63-5g 

I 38 25.34I+ u.u.^ 

I 47 20.90I— 0.04 

I 59 44.06J— O.C.K) 

6 38 15.34 -1-12. S<' 



7 

7 

7 

19 
I 



3 
12 

45 
55 
10 



2. So 

15.31 
26.04 

19.20 

38.07 



o.«y' 

o. 14 
0.15 

3-32 
o.i^i; 



13 18 15.07 + o.i*> 

13 27 58.41-1^ o.oi 

13 48 24.02 — o.oi 

15 9 54-23 -»- O.oS 

20 53 25.37 
20 55 42.11 
22 55 39.22; 

22 55 39-91 
I 10 39.40 -f- o.Ji; 

I I 

I 38 25.22 — 0.03 

I 59 44.11! 0.00 



22. R. A. obser\'ed over set D, VI, VII. 
28.29. Blurred. 

30. Barely observable. 






• •• 

• • • 

• • • 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



^ Circle 
S Division. 

'A 



I 

2 



3 310 13 

? \ 

7 (■ '^ 55 



24 9 



9 ' 
10 ( 



II 

12 

13 ' 

14 

15 

16 ' 

i3 ! 
19 

20 : 

21 

22 , 
23 

24 
25 

26 

27 

2'i 

29 
30 

31 

32 

33 
34 



12 & 
5 52 



56 16 


56 48 


47 38 



310 14 

35 52 
30 20 
18 40 
16 o 



16 364 
II 44^ 



3<» 

37 

3S 

39 

40 
41 
42 
43 
44 

45 

4^) 



19 461 



55 58 

56 32 
47 10 
47 10 



30 20 



MICROSCOPE MICROMS. 



TELESCOPE MICROMETER. 



4.5 
9.0 



10 21.6 
10 24.9 
10 28.2 

10 21.6 

10 29.1 

10 12.0 

10 19.4 

17. 1 



26.5 

21. Q 



13.5 



9 21.6 

9 195 
10 27.7 

10 27.7 



ID 8.4 



I. 


IL 


r. " 


// 


9 23.4 


20.0 


10 0.4 


26.0 


28.0 


23.4 



in. 



29.9 
3.0 



21.6 
23.4 

^8.Q 

21.4 

28.7 
10.7 
17.8 

15. 1 



25.0 
20.2 



13. 1 



19.9 

17-4 
27.2 

27.2 



8.4 



// 



20.2 
25.9 

22.5 

28.9 
4.0 



21.3 
23.0 

27.3 
22.8 

27.6 
11.5 
195 
17. 1 



28.1 
24.2 



17.5 



21.6 
19.6 

27.7 
27.7 



9.1 



IV. 



Rev. 



21.8 
28.0 

25.0 

1.5 i 
5.5 



23.6 

25.5 
0.6 

24-5 

1.3 
II. 8 

21.2 

17.0 



26.4 

22.8 



14.0 



23.4 
22.4 

0.7 

0.7 



9.6 



No. 



Barom. 



in. 



External 
Therm. 



Attached 
Therm. 



28 
24 

28 

29 
27 



22 

28 
22 

19 

29 
26 

25 
27 



25 
29 



27 

26 

25 

28 

29 
26 



I. 



126 

• • 

379 

169 
940 



274 
125 



868 



351 
170 



S80 



772 



186 
629 

382 

006 
039 



428 



305 
193 



816 
972 



650 

884 



642 
756 



3. 



179 



170 



102 



200 
611 

37S 

030 
070 



321 



330 
652 

744 



666 



181 

549 
656 



638 



III 

• • 

415 
030 

o<;5 



170 

275 



725 



5"3 
•94S 



260 



«-• 


1 


1 


.£ fi 


1 

1 


a 



a,- 


Apparent 


l^ 


nith 
orrec 


Zenith Dis- 
tance, South. 








^ 



II 



46.2 
46.2 

46.2 

46.2 
46.2 



42.8 

42. 8 
42.8 



42.8 
42.8 
42.8 
42.8 



42. S 

42.8 



42.8 



42.1 
42.1 
42.1 
42.1 



w Refraction 



// 



310 iS II. 4 
24 13 23.3 

20 o 18.2 

12 20 0.8 
5 5^> 23.6 



// 





c« . 




3 2 




-- c 




c 


Apparent N. 


^^ 9 \ 


P. Distance. 


U V 




U IM 




(/) k. 




— 


_ 


Su 


/ // 


II 



I 

561 — I 8.6 , 
563 -h 26.2 . 



I 23 24.0 
75 20 10.8 



56 18 28.7 
56 50 57.4 
47 42 23.9 



574 1+ 21.3 71 7 0.7 



. . + 12.8 
59^"^ + 6.1 



^3 26 34.8 
57 2 50.9 



- 0.3 

+ 0.3 

— 0.6 

-20.8 
0.0 



42.8 310 19 18. 9 



35 54 38.9 
30 23 38.5 
iS 43 40.1 
16 3 10.9 



16 40 8.4 
II 47 17.3 



19 49 45.7 

56 I 50.5 
56 34 16.5 
47 12 470 
47 12 30.0 



42.1 20 23 35.6 



For summary of the elcmcnis of rcdticiion sec piii^e 3. 



I 

••'-+- I 33.4 

855 |-H I 35-3 

. . I -}- I 8.1 

. . ;— I 13.4 



107 26 23.3 
107 58 53.9 

98 49 53-2 



- 7.5 

- 7.5 

- 4.7 



853 

S63 

866 

874 






451 

36.7 
21.2 

18. 1 



I 24 26.7 +2.3 



974 

978 



19.2 
13.4 



1050? -h 23.6 



• . ,+ I 32.5 

857 1+ I 34.4 

787 -I- I 6.2 

. . -f I 6.2 



87 I 45-2 

81 30 36.4 
69 50 22.5 
67 9 50.2 



67 46 48.8 
62 53 51.9 



4- 1.9 
+ 1.5 
+ 1-3 



70 56 30.5 -f 1.2 



0.4 
2.1 



107 9 44.2 

107 42 12. I 

98 20 14.4 

98 19 57-4 



I 



7.4 
7.5 
4.7 
4-7 



835 + 3f>-4 I 81 30 33.2 - 1.4 



MOON'S— 



No. 



26 



Parallax. 



// 



Scmi-diam. 



- 32 45.3 1- 15 199 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



iS6S. 
Jan. 31 



Feb. I 



o 



3 

4 



7 
8 

9 
10 

II 
12 

13 
M 
15 



17 
18 

^9 

20 
21 
22 

23 
24 

25 
26 

27 

28 

29 
30 
31 

32 

33 
34 
35 
3f> 



OBJECT. 



:?. ' 



51 



£ 

a 
a 

e 
a 
I 



16 I } 



51 
II 

A 
«• 



a 



Moon I, S. 
(Jeminorum . 
Cephci . 
Gcminorum 

Moon, I. S. 

Moon I 

Taiiri 

Tauri 

Tauri . 

Camclopardalis 

Tauri 

Camclopardalis 
Auriga; 
Moon I, S. 
Tauri 

Gcminorum 
Ccphei . 
Uranus 
Orionis 

Orionis 
Orionis 
Canis Majoris 
Canis Majoris 
Moon I, N. 



Lync 
Aquilac 



a 

7 



L 



37 '^ 

38 »5 

39 , > 
40 

41 



I 42 I 
43 

44 

S ' 

45 
46 

10 ' 47 
48 



a 
/ 



Sun I, N. . 
Sun II, S. . 
Andromcdie 
Tauri 
Tauri 

Anonymous 

Aurigre 

Orionis 

Orionis 

Uranus 

Canis Majoris 
Gcminorum 

Ursie Min., S. P, 

Hydnc . 



Moon I, N 
Hydne . 
Lconis . 



t 
o 

en 

O 



T. 
A. 
A. 
A. 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



'S j 1 



II. III. IV. V. 'VI. VII VIHIX. Mcanwirc.i Inst. 



• 37.5 
2 ;44-9 
3 
3 



I46.0 

I59-7 



N. I 3 '54.2 



T. 
T. 
T. 
T. 
T. 

N. 
N. 

N. 
N. 
N. 

N. 

N. 
N. 
E. 

E. 
E. 
E. 
E. 
E. 

A. 

A. 



19.9 

31 
40.3 

i 6-9 



40.241.748.1 50.1 52.2 58.5 

47. 549-556. 1. 58. 3 0.3 
38.0 9.035.018.059.0 



Clock ! Clock 
appar'nt. adopted 






c c 



Apparent R. , ^ f 
Ascension. 7^ V 



/^ ~ 



2.5 4.210.9 

I : 
56.758-3. 4.7 



0.2 2.6, 

7.1 8. 711. 4 
42.025.01 



m. 
I 



s. 
o.i4i 



s 



13.3 15-321. 923. 726. 4 



50.12 — 
14 58.20 — 0.04 -I- 

37 59-70+ 4.11 
12 13.10 — 0.04 + 



1.38 



4 



1.37 + 



II : ' = 

6.9 8.9 15.4 16. 919. 7 55 6.86—0.09 



s. 

1.27 
+ 1.38 
+ 1.38 

1.38 



23.024.7,31.033.135.341.843. 
3^13.4 15. 6,17. 624. 025. 



5-6 7. 
43-144- 
9-5II 



751. 1 
II7-4 



25.832.436.351.4 



53.2 
19.5 
56.6 



2.1 
I 

• 

I 
I 



39.8 



7.6 



42.644 

. . 45- 
10.6 12. 1 



250.7!52.7 
8 50.4'55.7 
6 19.7 22.2 

19. Si2i . 5 26.028.0 30. 2 



55-4 



41.4 



44.446.1 52.8 55.2 



I 



50.853.655.21 1.6 

. . 9-5 34- 
18 421.322. 

55.257. 



I 



015.7 
929-7 
159-5 



3 

58, 

31. 
I 



57.0 

1.7 
II. 1 
46.6 

0.0 



A. 
A. 
A. 
A. 
A. 

A. 
A. 
A. 
A. 



3.2 
I 



26.7 30 



3 5-3, 7.6 
7 II.6|I3.S 
722.6J25.0 
I 58.0! 0.2 



59-71 I 

4.2: 5. 
14. 1 15. 
49 . 6 5 1 . 

2.7 4.4U.o;i3.3 



. . 58.2, 2.7 7.9 



43.2 



3 16. 1 



3 

2 

5 



a 
a 



I 



Sun I, S. 

Sun II, N. 

Aquilx . 
Cygni . 



A. 

A. 
A. 
A. 
A. 
A. 

A. 
A. 
A. 



45 
19 



39-041 
49. 8 . 

• • • 

56.659 
18. 



I 



1.3 - • 



45-8 

58.7 
48.0 



3 
2 

2 

21.. 
4 32.7 



732.333.641 

847.253.855 

,020.827.6 30 

. . . |l2.0 14 
,843.250.052 

. 53.459.1 • 

• I . . I . . ^x 
,0 0.5 6.8 9 



21. 
I. 

54- 
o. 

24- 

32. 
57. 

5 
40 

33 
3 



2.0 3. 

5 28.0; 29. 

6 16.820. 



6 46 . 2 

628.3 

5I 6.2, 

732.3' 
626.6 



51 33.18— 0.02' . . 
12 15.61 — 0.02 4- 1.95 
20 53.29— o.oi -h 1.88 



-h 1.67 



-¥■ 



1-93 
1.94 



28 19.54 4- 0.02 
40 56.45 -f 0.36 



+ 1-94 



-h 1.98 4- 1.94 
+ 1.94 



1.2 

5.8 . . 
32.034. 

334.639. 
7j 4.6; 6. 

I I 
8 12.013. 

5'22.7j . , 

840.642. 
8.0 



30 5.7 



037.2 

140.7 

3 9-1 
16.4 

■ • 

445.3 
5 12.3 



II. 613. 81 . . 
22.023.6 25.0 
34.4 36. 1 39. 1 

9. 5:11. I 13.9 



9.7 
15.9 
27.4 

2.4 
15.422.023.6 



.0 

-9 
.0 

.0 

.0 



43-1 

58.1 

32.2 
16.6 

54.1 



26.5 
22.6 



20 52.7o| — 

40 55.62 4 

48 22.2& H- 

30.24- 

17 55.294 

30 3.67- 

37 58.43 + 

41 31.79 
56 59.44 4 

I 

8 9-55+ 
25 13.72 + 

53 25.o(> 4 
3 0.274 
6 13.21,4- 



0.02 4- 2.54 

0.21 

0.03 4- 2.50 !4 

0.02| 

o.oi 4- 



0.03 4- 

1.S9, 

o.ouj 

0.15! f 

o.iS +- 
o.iS.-l- 
0.20 4 
0.19 
o. 16 



2.51 
2.57 



4- 2.5a 
4 2.53 
2.52 
4- 2.53 
4 2.53 



h. m. s. I s. 
3 I 51.25 t (*4')^ 

6 14 59.54 O.U"! 

6 38 5.19 -^ 2.?'J 

7 12 15.43 — 0.02 

2 55 8.44 46f*.S2 

3 51 35.09'46S.r^ 

4 12 17.53 4- O.OI 
4 20 55.29 4 o.fV' 
4 28 21.46 — 0.04 
4 40 58. 75 + 0.25 

4 20 55.20— O.U2 

4 40 58.35 — o.ii 

4 48 24.83I— O.OI 

4 51 32.75 471. m 

5 17 57.83 + 0.01 



4- 2.55 

4 2.55 

,4 2.55 

2.74 + 2.59 



2.61 
2.65 

2.38 



50.0 
4.3 



45 7.86 4- o.io 4 3.20 



4 
4 
4- 
4 
4 



2.59 

2.(K> 
2.62 
2.62 
2.64 



6 
6 
6 

4 



30 6.lg — 
37 2.874 
41 34.34 
57 2.18- 



tJ.ifZ 

o.-^T 
0.10 



4- 2.97 



51.053.5 



H. 
H. 

A. 
A. 



I 
I 



26.1 



53 

48 
I 

37 



155.557.3 
850.657.4 



.923.9 
.0 II.O 



59-7 



59 



6 3.4I 9.9,12 
016. 5j . . 
. I37.050.058 



.7 
.2 



.0 
35. 236. 643. 145. 1 



28.830.7 



37.239.2 



27. 129. 831. 335. 637. 7 
. . 50.252.354.456.5 

2.8; 5.4 7.1 13. 1 15.2 



2.2 

2.1 
14.2 



5.7 8.5 

39. 341. 1 43.8 

23.0,24.627.3 

0.61 2.2 5.0 

I i 
12.4 . . 15.3 

26.3 31. 1 36.0 

17,1 18.8 21.2 



7.2 



8.3 



8.S10.1 
20.722.5 

53.0|33.o 
20.031.01 . . 

47.1 53.154.7 



II. 2 

13.5 
25.6 

19.0 

• • 

57.4 



21 40.77 + 

23 55.84 4 
I 29.99 4- 

12 14.40 4 
20 51.994- 

32 3.82,4- 

48 21.53 4- 

8 8.S9-I- 

29 30.95 4- 

57.59! + 



2 
12 

55 
38 



59.65 4 
12. o() 4 

3.86I4 
45.0(3 + 



0.30 
0.30! 
0.13,4- 
0.19I f 
0.18 4- 

Q.14 
0.10 4 
0.28 4- 
0.25 4- 
0.16 



0.3" 
o. 16 



16.60 
0.23 4 



- 3.01 

- 3.02 
3.21 ,4- 3.07 
2.87 ,4 3.14 
2.9<9 ,-f 3.14 

'+ 3.14 

4 3.15 
4- 3.16 

4- 316 
4- 3.18 

4 3.19 
4 3.19 

4- 3- 20 
4 3.12 



5 8 12.32!— O.OI 

5 25 16.50— 0.07 

6 53 37-88 4 0.22 

7 3 3.0S-1- 0.26 

8 6 16.01 4 73.1'J 

18 15 10.93 — 0.21 



3.11 

3.15 
0.51 



f 3.15 



3.08 



41. 248. 149. 7 52.41 12 39.27 



17.3 
4 32.9136.538.847.1150.253.1 



39.9 

58.8 



3.1 4.7 



23.525.1 

1.5I 3.7 



7-3 

27.7 
7.5 



25 39-84 
27 54.50 



4 0.17 

4 0.22 
4 0.22 



21 21 44.08 . . 

21 23 59.16. . . 

o I 33- 19— 0.14 

4 12 17.73 4 0.2.J 

4 20 55.31 4 0.15 

4 32 7.10 4 6.7> 

4 48 24.78 4 0.01 

5 8 12.33 4 0.01 

5 29 34.36 

6 41 0.93; 

I 

7 3 3.174 o.2f' 
7 12 15.44 4 o.or 

7 55 23.6^)- o.o> 

8 38 48.35-1- 0.04 



44 15.24 4^ O.II 4- 4.03 
36 50.14 4- 0.08 



4- 3.17 4- 3.14 

I 

4- 3.32 

4 3.32 

4 4.18 

. 4 4.19 



10 12 42.58 — 0.01 

21 25 43.38 . . 

21 27 58.04 . . 

19 44 19.53 4 0.16 

20 36 54.41 — 0.07 



6.7.8.9. Observed in dark field. 

14. Circle not read, both limbs blurred. 
25. R. A. observed over wires H.}, Ci, C.i, and D:». 

27. Rev. of micrometer doubtful, probably one rev. loo small in N. P. D. 
39.40. Very unsteady image. 

45. Observed over set B, and Ci, C2, C3, in R. A. 

46. Observed over sets C and D in R. A. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



J3 



7. 



I 
2 

3 
4 

5 

6 

t 

S 

9 

10 



Circle 
Division. 



20 
31 
32 

23 
24 

25 

26 

27 

. 2S 

I 29 

30 
, 31 

32 

■ 33 
34 
35 

■ J/ 

3^ 
' 39 
, 40 
' 41 

42 

44 

I 45 
4^^ 

■ 47 

■ 4^ 



MICROSCOPE MICROMS. TELESCOPE MICROMETER. 



31 45 
i6 i6| 

3" 36 
16 36 

27 55 



I 



11 


19 56 


12 


332 44 


13 


5 52 


M 


22 8 


15 


10 20 


16 


22 20 


17 




iS 


15 20 


19 


13 36 



47 10 
39 14 

65 o 
21 46 



30 18 

53 54 

54 26 



19 56 

12 16 

5 52 

47 10 

40 8 

15 20 

65 o 

16 36 

307 44 
31 56 

24 36 
46 54 
18 20 

54 8 
53 36 

30 18 
354 2 



I. 



r. 

8 



It 



17.6 
a6.8 
19.3 
19-5 



8 22.9 



10 9.8 
2.0 

5.9 

9 151 

6.7 

8.6 

6.0 
6 6.5 

6.3 

5.8 

2.0 
?9 14.2 



2.0 

10 21.9 
10 17.3 



II. 



II 

15.9 
26.8 

19.6 

20.0 

21.8 



5.5 

5.5 

5.5 
6.0 

0.5 
4.5 

0.5 

6.8 

2.0 



10 
10 



2.3 
3.8 
0.1 

i.o 
2.0 



8.4 
1.0 

4.3 
12.3 

5.7 
6.8 

3.0 
6.8 

II. 5 
6.7 

3.0 
14.4 



3.1 

22.5 
17.7 



III. 



// 



17-5 
28.9 

24.0 

22.8 

24.3 



IV. 



// 



18.3 
28.9 
21.4 
21.0 

24.2 



6.5 

5.2 

5.7 
6.1 

0.5 
4.0 

0.5 
6.0 

2.3 



9 27.0 
9 29.5 



1.0 
3.0 
0.4 

1.6 
2.5 

27.0 
26.5 



10.2 

3.3 
7.2 

14.9 

8.4 

9-4 

6.4 

7.2 

7.4 
4.2 

6.5 
15.0 



4.0 

24.0 
19. 1 



10. 1 

4-3 
6.6 

15.0 

8.4 

9.0 

7.0 
6.0 

6-0 
3.5 

2.6 
12.6 



4.5 

23.0 
19.0 



8.5 

7.5 
7.5 
7.5 
2.4 

6.8 

3.0 

8.5 

4.0 



3.0 
6.4 

3.0 

3.0 
3.8 

28.1 
29-5 



7.0 

6.0 
6.6 
7.0 

1-4 
6.0 

2.5 
8.2 

4.5 



3.0 

5.5 
1.8 



Rev. 



No. Barom. 



External 
Therm. 



II 

i3 



in. 

30.745 
30.700 



II. 5 
5.0 



Attached 
Therm. 



70.2 
69.7 



30 
30 

25 
25 

28 



23 

28 

23 
24 

25 

29 

25 
23 

24 
29 

29 
26 



26 

26 
23 



24 

25 
23 
24 
32 
27 

30 
24 

10 



27 
25 



3-4 


28 


1.4 


30 


28.9 


26 


29.6 


2d 



I. 



093 



998 



410 

• ■ 

237 

m • 

859 



858 



158 



872 

744 



2. 



9S8 



212 



100 



lOI 



422 
928 

340 
268 

756 

405 

901 



330 



115 



202 



4. 



5. 



400 ' 

530 
050 



302 



358 



22S 

838 
414 



131 



691 

491 



306 
819 

760 



516 



497 
930 
668 

356 



c c 
0.2 

G O 



11 

42.1 
42.1 
42.1 
42.1 

41.7 



Apparent 
Zenith Dis- 
tance, South. 



// 



31 47 31.8 

16 18 47.3 

311 40 18.6 

16 40 8.4 

27 57 42.6 



370 
849 
374 
315 

721 

251 
911 



142 
630 



830 
260 

• • 

391 

■ • 

650 

• • 

810 
310 

60S 



539 



859 



772 



250 

• • 

7S9 



453 
631 



33S 



989 



566 



940 
691 

33S 
334 

• • 

700 
764 



538 
650 



220 

786 
921 



407 

440 
970 



470 

• • 

765 
750 



42.5 
42.5 
42.5 
42.5 
42.5 

42.5 

42.5 



43.2 

43.3 
43.3 



I 

o 

B 
(A 



848 

952 

965 
982 

872 



Refraction 



20 o 18.0 

332 47 16.7 

5 56 22.0 

22 12 36.4 

10 23 59.2 

22 22 49.9 

15 24 0.3 



175 

891 
0S9 



43.5 

43.5 
43-5 
43.6 
43-6 
43.6 

43.6 
43.6 

A3(> 



43.7 
43.8 



43-5 
43-5 

42.3 
42.3 



30 21 43.4 

53 57 31.8 

54 30 10.6: 



20 o 13.0 

12 19 58.1 

5 56 20.7 

47 14 9-9 
40 10 17.2 

15 23 29.0 

65 2 

16 40 



49.3 
8.0 



307 49 43.7 



24 39 31.2 
4^) 57 57.6 



54 II 19.2 
53 38 49.1 

30 21 43.8 



II 



-+- 38.6 

+ 18.7 

— I II. 9 

+ 19.3 

-H 33.3 



1008 



859 



836 
813 

897 

900 
921 
928 

935 
958 

950 
962 

974 
980 

966 
966 



Sip 



For sumniar)' of the ch'mcnts of irdiution see ftii^t' 3. 



993 + 






-I- 



+ 



852 f 
354 5 II. 7i 84S - 



23.5 

33.1 
6.7 

26.4 

II. 9 

26.8 

18.0 



-h 

+ I 
+ I 



+ 

+ 

+ 

->r I 
-I- 
-f 



— I 



36.6 

25.2 
26.9 



22.9 

13.8 
6.6 
8.6 

53f> 
17.6 

16.4 
19. 1 

22.5 



+ 29.4 

+ I 8.5 



I 27.0 
I 25.3 

3f>.5 
6.5 



No. 



Apparent N. 
P. Distance. 


Misceiian'us 
Corrections. 


/ // 

82 54 31.6 

67 25 27.2 

2 45 27.9 

67 46 48.9 


II 

— 0.6 

- 1.6 
-0.3 



79 4 37.1 



71 7 2.7 
23 53 4.8 
57 2 49.9 
73 19 24.0 
81 30 32.3 

73 29 27.9 

66 30 39.5 



+ 0.9 

4- o.il 

-h 0.5. 

+ 0.1 

-h 0.2 

— o.i 



81 28 41.2 

105 5 18. I 

105 37 58.7 



71 6 57.1 

66 26 33.1 
57 2 48. 5 
98 21 39.7 
91 17 32.0 

66 30 7.S 

116 II 26.9 

67 46 48.3 

35S 54 42.4 



75 46 21.8 
98 5 27.3 



105 19 7.5 

104 46 35.6 

81 28 41.5 

45 II 26.4 



MOON'S- 



-I- 0.7 

- 7.2 

- 7.3 



- 4-7! 

— 20.3 

- 0.8 

- 0.6; 

- 2.6i 

- 0.1 



-f 



1.7 
0.8 

4.2 



+ 0.3 



- 7 

- 7 



+ 



0.5 
1.4 



• 


Parallax. 




/ // 


I 

5 
14 


— 29 47.2 

— 26 53.6 

— 22 18.0 


24 
42 


• ■ • 

1 



Scmi-diam. 



// 



-\r 



15 


32. 


7 


15 


45. 


7 


16 


15 





16 


43 


3 


16 


42 


9 

■ 



8 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
Feb. II 



12 



B 

s 



I 
2 

3 
4 

5 

6 

7 

8 

9 
10 

II 
12 
13 
14 

15 

16 

18 

19 
20 

21 
22 

23 
24 
25 

26 

27 

28 

29 
30 

31 
32 

33 
34 

35 

36 

37 

38 

39 
40 

41 
42 

43 
44 
45 

46 

47 

48 

49 



OBJEC^T. 



Sun I, N. . 
Sun II . 
Mercury 
« Pegasi . 
Venus I, N. 

Venus S. . 
a Andromedne 
y Pegasi . 

Polaris 

e Tauri 

Anonymous 
a Aurigx 
l3 Orionis 
a Columbjc . 



a Orionis 

cJ Ursac Minoris, S.P. 

51 Cephei . . . . 

Uranus 
f^ (ieminorum 



F 
K 



r 



a 

c 

V 

f 

a 
a 
t 

A 

J' 

6 



a 
a 



Ursac Min., S. P. 

Hydnc . 
Cancri . 
Melpomene 

Tauri . 
Moon II, S. 
Polaris, S. P. . 
Virginis 
Virginis 

Boot is . 
Boot is . 

(\)ron:c Boreal is 
Serpentis . 
Serpentis . 

Scorpii . 
Scorpii . 
Ophiuchi . 
Saturn, Ring I 
Saturn, Planet I 

Saturn, Center 
Saturn, Planet II 
Saturn, Ring II 
Aquilae 
Cygni . . . 



I en ' 

I /-s I 



A. 
A. 

A. : 

A. 

A.' 

A. 
A. 

A. 
A. 

A. 

A. 
A. 
A. 
A. 
A. 

A. 
A. 
A. 
A. 
A. 

A. 
A. 
A. 
A. 
A. 

A. 
A. 
A. 
A. 
A. 



A. 
A. 
A. 
A. 
A. 



Sun I . . . . 
Sun II ... . 
Mercury I, (center) 
Pegasi .... 



A. 
A. 
A. 
A. 
A. 



A. 
A. 
H. 
H. 

n. 

H. 
H. 
H. 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 









'Z 

> 



Apparent R. ' ^'P 



I. II. III. IV. V. VI. IVII. VIII IX. Mean wire. Inst. 



3 
3 
3 
4 
4 

4 

4 
5 

4 
4 

5 
5 
5 
5 
5 

4 

5 
5 
5 



20.1 22.224.1 



• ■ 1 ■ • 



I I 
30.1 32.334-241.142.4 



m. s. I s. 
45-2 37 32.4ii-»- o-JO 



55.1156.859.5 3846.77+ o.io 
6.911.5 15.5 17.4 19. 6,21. 723. 828. ii32. 1, 33 19.62+ o.io 



I 



39.242.043.249.451.553.659.7 1.3 3.7 44 51.514- o.io 



Clock 
appar'nt. 


Clock 
adopted. 




s. 

• 

• • 

• • 


s. 
4 4.21 
-1- 4.21 
+ 4.24 


h. m. s. s. 
21 37 36.72 

21 39 51. II 

22 23 23.96 -f 0.0 



+ 4.26 . 23 44 55. 87 + 0.43 



15.018.019.826.629.131.238.239.9,42.7 I 28.944- 0.10 
II. 2 12.8 17. 1I19. 2 21. 223. 325. 4*29. 7 31.3! 6 21.24+ o-ii 4- 
59.o'44.5 49.5'35.o i.o . . I 2.0 3.050.3 ) 



35.0, 1.024.548.0 II. o 



37'740.342.048 
. . 57.1 o.ij . 



35.238.841.4 



34.137.138.9 



50 



550. 
. 5- 
«53. 



752.759.4 

I 7.I;II.8 

055.8 



j-io 24.42- 3.45 



46.248-651.3 



45.448. 149.655 
20.1 54.0,44.0,10. 



43.736.0 

12.6 15.8 

57.8 0.5 



9-534 
17.424 

2.3 8 



2 
4 
3 



3 
4 

3 

3 

3 

2 
2 

3 

4 

4 

2 



6.047.024.5 
. . . . 47.0 



857.959.9 
235. 

0,15- 
1 26. 

6 10. 



5, 
,0 



1.0 3.6. 

I3.3'i6.2' 

4.61 6.8 10.6 

i6.i!i7.7 20.3 

58.8 0.3. 3.5; 

I I 
5.9 7.710.I; 
1.926.3 17.4 52.0 



I • 



19.922.6 24.2 



I 28.434.636.939.5; 
8 13. 1 19. 8 21.5 24.1 



20 50.66 -h 

32 2.32 -f- 

6 52.91 -h 

8 7.8914- 
34 48.764- 



47 57.82 + 
13 35. 70! 4- 
37 57.98- 
40 26.164- 
12 10.94 + 



4.25 + 4-27 
4.22 + 4.27 



4- 4.29 



O I 33.31 -H 0.02 

6 25.62 + 0.03 

1 10 25.26 — 4.12 



0.10 + 

O.IO 

0.08 
o. 10 
0.07 



O.II 

1.76 
1.67 

O.IO 
O.IO 



5.044.0 29.0; 
2.0 14. 025.039.01 . . I . . 

. . 143.645.852.153.656.1 
30.332.534.640.542.345.1 



25.1 27. 9'29. 4 35. 9 37. 9 40. 046. 5 48. 2 
25.4.27.629.5 31. 8 33. 8 38.439.9 



54.0 



50.1 



52.0 



52.0 



4.0 

• a 

54.056.258.2 



55.057.659.4' 6.4 

47.2 50.3 52.o;58.7 
28. 831. 433. 139. 2 



2.2 



8.7 II. o 18.1 
1.0 3.5 10. 1 

41. 143. 249. 3 



3.8 



19.7 
12. 1 

51. 1 



50.6 
42.3 

6.4 



55 14.88 . . 

39 43.77 . • 
o 32.45 -h O.II 



4- 



4-33 



4.27 
4.20 



4- 4.43 



4- 



4- 4 
4- 4 
4- 4 
4- 4 
4.33 4- 4 



4- 4 

+ 4 

■H 4 

4- 4 

4- 4 



34 

34 

35 
35 
36 

36 
37 

38 
38 
39 



I 



4 20 55.10 4- O.o! 

4 32 6.76-1-6.^4 

5 6 57.41I— 0.03 
5 8 12.34 4- 0.0.) 
5 34 53.194- o.iu 

5 48 2.29—0.07 

I 18 14 41.83-1- 0.6; 

j 6 38 o.o(> 4- 0.63 
' 6 40 30.64 

7 12 15.43 4- <^<\^ 
I 

H- 4.40 7 55 24.24'— o.y. 



+ 4.39 4- 4.42 



9 o 36. 9S 4- 0.0- 



12 37.944- o.io-h 4.56 |4- 4.44 

29.73 4- O.IO 
10 15.83 4- 3.90 

• • • I • • 

27 54.11 4- O.IO 



22.6 39 8.72 4- O.IO 



14.6 

53-5 



29 1.064- O.IO 
37 41.194- O.II 



57.259.8 1.2 7.2 9.3 11.3 17.7 19.221.6: 44 9.394- O.II 



14. I 16.7 18.5 



8.7 10. I 
56.4 . . 

57.1 . . 



12.7 
0.7 
1.4 



25.127.229.435.837.540.3 

. . I . . 154. I 



'4- 4.50 
. . 4-4.50 

+ 4.53 ,+ 4.50 



4- 4.57 4- 4 

4- 4.60 ,4- 4 

4- 4.61 l-h 4 

4- 4.61 4- 4 



58.5 

58.9 

3.4 

32.4 



2.7 
3.1 



iS.S 20.9 22.9 

9.3, . . 
10. o 



II. 4 
1 1. 9 



5.9 7. 513. 515. 6 
36.238.346.849.7 



17.6 

52.7 



29.030.5,33.0 
22.3 
23.2 



23.8 



24.1 
25.0 

25.3^27.8 



52 27.184- 0.094- 4.58 |4- 4 

57 4i.i3|4- O.II 4- 4.54 |4- 4 

7 20.7314- 0.104- 4-74 4- 4 

13 9.34|4- 0.09 . . ;4- 4 

13 10.12 4- 0.09 . . '4- 4 



13 11.344- 0.09 
13 II 89J4- 0.09 
44 15.594- 0.12 



1.3 3-4; 7.2 



2 |I5. 7 18.2 19.826.2 28.230.237.1 38.240.8 

2 !29.432.i33.7'39.9'42.244.3'50.4 52.2 54.7 

3 1 16. 2 18.720.226.628.7 30.736.8 38.441.2 
3 ,52.655.356.9! 3.2. 5.3! 7.4,13.8,15.218.1 

I I 



36 49.78 



4- 0.16 



41 28.27 4- 0.08 
43 42.104- 0.08 
39 28.61 4- 0.09 
58 5.31,4- 0.13 



52 
53 
53 
54 

54 
54 

55 
55 
55 



4- 4-55 
4- 4.55 
4- 3.70 I4- 4.70 
. . I4- 4.71 



4- 4.70 



4- 4.73 

-H 4.73 

+ 4.74 

4- 4-74 



10 12 42. 48 

13 6 34.33 

I 10 24.19 



■ o. i^ 

66.16 

5-10 



13 27 58.71 — 0.03 



14 39 13.34— o.(j*. 

15 29 5.69— 0.07 
15 37 45-83;- o.rx- 
15 44 14.04'— o.o< 

15 52 31.81 — o.<i4 

15 57 45.78 + o.«X. 

16 7 25. 3S — 0.17 
16 13 13. SS . . , 
16 13 14. W) 



16 13 15. 88 . . I 
16 13 16.43' . . 

19 44 20.41 4- 1.02 

20 36 54.654- 0.16; 



21 41 33. oS 

21 43 46.91, 

22 39 33.44-+- 
22 58 10.18 4- 



I 



0.20 
0.0- 



I 



4. Wire B used, and seems ten revs, wrong in N. P. D. 
44. A mistake of half a revolution was made in the reduction of the nadir observations. The correction — 7".6 is applied to 
the results given in subsequent sections. 
15.16.29.30.34.35.36. Wire Bused. 

25. Wire A used. 



OBSERVATIONS WITH THE' TRANSIT CIRCLE. 




TELESCOPE MICROMETER. 



No. Barom. ^^^^'^"^^ 

Therm. 



33 
43 
47 



m. 
30.520 

' 30.542 
30.540 



8.9 
8.8 

30.5 



Attached 
Therm. 



61.0 
60.7 
67.9 



2. 



830 
486 



930 



150 



230 

200 
613 

931 
500 



100 

993 

333 

379 
401 

313 
649 
420 



160 



471 

282 



750 
041 



3. 



099 



4. 



088 



173 



602 
931 



230 240 



119 
129 



550 
806 



5- 



185 



685 
821 
092 

113 



741 
641 

071 
150 

100 
562 

859 

508 



230 

069 
979 

400 



910 

865 
2S0 
300 

375 
016 

447 
150 



125 



353 
231 



729 
920 



448 
766 



o o 

— U 



// 



42.3 



Apparent 
Zenith Dis- 
tance, South. 



699 
756 
971 

no 



696 
690 

991 
040 

990 
561 

843 
459 

160 

106 
150 



416 
Ii6 



250 
190 
300 
992 

373 
276 



073 



235 
180 



841 



42.3 
42.3 
42.3 

42.3 
42.3 
42.3 

42.3 



43 
43 

43 
43 

43 
43 
43 



43.5 

43.5 

43.5 
43.5 

43-5 

43.5 
43-5 

43.5 
43-5 
43.5 
43.5 
43.5 

43.5 

43-5 



43.5 



51.2 
51.2 



51.2 
51-2 



// 



52 41 24.7 



48 50 156 
24 23 28.6 

41 35 17.9 

41 35 28.4 
10 31 45.8 
24 26 15.7 

310 i3 16.0 



20 o 18.3 
12 20 2.4 

47 14 10.6 
72 59 27.9 

31 30 25.9 
305 31 18.6 
311 40 15.4 

16 40 8.8 
307 49 44.2 



o 

.Si w 

p. r 
E ^ 



817 
808 



Refraction 



803 
806 
805 

799 



842 

• • 

852 
870 

8S0 
890 
890 

• 
900 

904 



/ // 

-f I 21.0 

-h I 10.5 

-h 28.0 

+ 54.6 

+ 54.6 

-h II. 5 

-h 28.0 

— I 12.4 



Apparent N. 
P. Distance. 






22.6 
13.6 



-f- I 7.3 

H- 3 22.3 

4- 38.4 

— I 28.1 

— I 10.6 



27 41 26.8; 930 
26 7 44.5 • . 



43 4 32.5 

49 20 57.9 
38 48 1.6 

19 50 o.g 
II 15 40.9 

II 43 55.0 
32 2 25.5 
34 o 17.6 

61 6 8.9 
42 13 44.5 



58 3 24.3 



30 21 49.2 
354 5 20.8 



48 2 51. I 
24 23 36.7 



980 

968 
986 

988 
991 
991 
996 
996 

999 
995 



+ 



18.9 



33.3 
31.2 



-h 1. 00.0 

-h I 14.8 
+ 51-7 






23.2 
12.8 

13.4 
40.3 
43.5 



994 
910 
870 



4- I 56.5 

+ 58.4 



+ I 43.1 



+ 



37.0 
6.5 



790 -+- I 8.3 
788 |-h 27.8 



Vi 


• 


3 


(A 


C 





« 








^m^ 


u ' 


U 





u 


k. 


V. 


b. 









'0 



// 



// 



103 49 6.9 — 7-1 



99 57 47.3 
75 30 17.8 
92 42 33.8 



92 42 44.3 
61 38 18.5 

75 33 4.9 



- 5.6 
-H 1.2 

- 4.5 

- 4.5 
+ 1.2 

+ 0.4 



I 23 24.8 — I.I 



-h o. I 
—20,3 

- 1-5 
-f 4.2 

82 .37 25.5 - 0.4 
356 36 II. 6 -h 0.4 
2 45 26.0 — 0.6 



71 7 2.1 

63 26 37.2 

98 21 39.1 

124 9 II .4 



67 46 48.9 



- I 21. 1 35<^ 54 44-3 



— 0.1 



— 0.9 



78 48 21.3 ■\- 0.5 
77 14 36.9 — 2.6 



94 II 53-7 

100 28 33.9 
89 55 14.5 

70 5<i 45.3 
62 22 14.9 



+ 16.5 
- 0.7 



-h 0.9 



62 50 29.5 !-+- 0.9 
S3 9 27.0 -h 0.2 
85 7 22.3 - 1.5 



112 14 26.6 


-•1.4 


93 21 41 


- 1.9 


109 II 28.6 


-0.7; 


81 28 47.4 


1 

+ 6.3! 



45 II 35.5 -4-I0.5 



99 10 20.6 — 5.7 
75 30 25.7 -h 9.0 



MOON 



No. 



For summary of the eUments of reduction see page 3. 



Parallax. 



27 



/ // 



Scmi-diam. 



/ // 



- 39 3^.5 i- 15 55.0 



10 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
Feb. 12 



13 



14 



0) 

7. 



I 
2 

3 
4 

5 

6 

7 
8 

9 
10 

II 
12 

13 
14 

15 
16 

17 

18 

19 

20 
21 
22 

23 
24 

25 
26 

27 

28 

29 

30 

31 
32 
3d 
34 



a 

A 
I 



K 
I 

I &^ 

, a 



3 
3 



OBJECT. 



6-" I • 



SE( ONDS OF TRANSITS OVER WIRES. 



rORRECTIOXS. 



I. 



II. III. IV. V. VI. VII. Vm IX. Mean wire. Inst. ' l^^S!^. ' ^l!^!^! 

, appar nt. aaopted . 



! *c c 

Apparent R. ] :§ g 

Ascension. 1 ^ cl 

•— o 



V^enus I, S. 
Venus N. . 
Polaris . 
Uranus 
Canis Majoris 



Canis MincA"is 
UrsaB Minoris, S.P 
Ursje Majoris 
Ursa; Majoris 
Cephei, S. P. . 



Leonis . 
Polaris, S. P. 
Moon II, S. 
Cygni . . 

Sun I, S. . 
Sun II, N. . 
Venus I, S. 
Andromedae 
Polaris . 

Cephei, S. P. 
Ursje Majoris 
Urssc Majoris 
Hydrae . 
Anonymous 

Leonis . 
Polaris, S. P. 
Moon II 
Libnu . 
Lyrx 

Sun I . 
Sun II . 

Polaris 

Tauri . 



H. 
H. 



I ! I m. s. ' s. 

3.9 6.3 7.9 14. 1 16. 1 18. 1 24.1 25. 72S. 2 49 16.044- o.io 



s. 



H. , 

H. 

H. 

H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
E. 

E. 

E 

E. 

E. 

E. 

E. 
E. 
E. 

E. 1 
E. 

E. 
E. 
E. 
E. 



A. 
A. 
A. 
A. 
A. 



I 



4 

4 
3 



2 

2 

3 



5.3 



. . 350 2 
7.6 . . 



8.7,11.7 13.420 



3 7.3 9. 811. 417 

4 I 2.0 II 

2 J47.651.353.7 3 

3 

3 



; 35 




Anonymous . 


A. 


4 


1 36 


I 


AurigrB 


A. 


3 


37 


II 


Ononis 


A. 


4 


•38 


a 


Orionis 


A. 


5 


39 


6 


UrsjeMinoris.S. P. 


A. 


I 


40 




Anonymous . 


A. 


• 


41 


7 


Geminorum 


A. 


• 


42 


51 


Cephei 


A. 


• 


43 


e 


Canis Majoris 


A. 


2 


44 


6 


Canis Majoris 


A. 


2 : 


45 


rf 


Geminorum 


A. 


1 
3 


46 




Mclete .... 


A. 


4 


47 


1 


Ursa; Majoris . 


A. 


4 


48 


« 


Cancri .... 


A. 


5 


49 




Anonymous . 


A. 


4 


50 


a 


Hydrae .... 


A. 


3 



9.2 16.020.5 36 
13. 921. 125. 343 

I I I 
35-438.239.545 
. . .. 13.050 

30.333134.741 
i32.r35.838.046 

iio.6 13.4 15.021 

28.1 30.632.038 

14.2 17. 1 18.926 

. . . . 35-057 



.... 52.8 2 

. . . . 59.4 2 

. . 2.5; 6.8 13 

49.752.654.1 o 

38.441.146.748 

I 

. . . . 43-^>45 
46. 5:20.554.5 . 

I . . 1 . . '59-3 I 
36. S 39.S41.247 
51.1,54.256.1; 3 

I \ '' ' 

5.2 8.0 9.5 15 

18.8 21.422.929 

55.040.0145.0 . 

• . I . . ,33-05Q 
36.739.441.047 



47-550.556.759 
4.5| 7.3. 9.416 

44.i|46.748.i;54 

44.647-148.754 
II 



47.8 

38.0130.0 

8. 1 10.9 

43.646.5 



. . 59.1 I 

50.452.358 

4-5 29 
130I . 

48.455 



156.659.4 



I.I 



59.1; 2 



50.552.9 

19.2 21.7:23.6 29 

48.1 5o.6'52.4:58 
49-7 52.4:53-8 59 



525.050.5 13.0 

' . . . . 27.429.232.2 
522.725.032.233.636.7 

: . I ! I 

6 19.621.627.7,29.331.8 
o 25.0 . . . . I . . . . ' 



5.9 9.1 18.4 20.6 

2;4i. 147.0 3.5 7.1 
349-455-313.2118.0 

, I I 

747.850.056.1 57.6 
025.0 2.036.0 . . 

I 43. 145. 1 5I-453-2 
749-552.3 i-i 3-2 



223.425.431. 

240.342.348. 
028.330.637. 
521.542.5 7. 

I i I 
311.220.730. 

5' 5.71 8.8 10. 

245-553-956. 
4 2.5 4.5 10. 

951.052.855. 



24.41 
13.5 
25.2, 

0.2 

. . I 

55-5 
7.0 



933-536.0 

647.2498 

7I50.I 52.5 
639.242.1 

5 I 

I > 
6' . . ' . . 

I 59.2 1.6 
6 12.2 14.5' 
2, i.i 3-6 



647.849.9 52.6 



I 



2 3-4 5 

4 49 . 6 5 1 

5 5-8 8 



6 9. 

457. 
315. 



8jii.5 14. 1 

859.5' 2.3 
6 17.420.5 



8|i8.i 20.1 26. 1 27. 8 30.4 
841.344.1 



331.333.539 

. • I • * 55 
o 1 7 . o 43 . o 8 

4 49.651.658 



2,59.8' 2.7 



_ . . ! 3.6 6. 
819.3 21.7 29. 
856.858.9 5. 
856.959.1 5. 
5, . . 6.029. 



31 6.8 
3' 6.8 
018.5 



9-5 
9-3 



10.6 13.4 

I 

• • • • 

33.236.1 



2 3.2 5-4 7 
5 0.6 2.8 9. 
012.054.7 • 
.21.9I . . 31. 
I 57.2:59.5, 6.3; 8.2 10.9 



2 5.2 



6 9.9112.1 18.9:20.6123.2 
. . 115.216. 8 20.2 
8.2 ii.4'i7.7.2o.i 
5 31.833.7140.041.5.44.1 
5 0.8, 2.9 9.1 10. 713.3 
8 1. 91 4.2,10.2.11.7 14.4 



10 25.20-1- 

40 18.54 -h 
53 22.72 -H 

32 19-57 + 
55 26.27 -H 
50 6.01 -H 
58 41.57 -H 
26 49.41 -i- 

25 47.83 + 
10 25.20 -h 

43 . 06 — 
36 49.52 + 

45 23.38- 
47 37.24- 
53 40.31 -h 

1 28.22 -f 
10 20.80 + 

13 11.52 — 

50 5.42-1- 

58 41.10 4- 

21 2.34 — 

4 50.98 -\r 

25 47.90 + 
10 32.23 — 



I 



0.33 . • 

0.14 . . 

0.04 4 4.81 

o.ii -I- 4.95 

0.03 

o. 16 . . 

0.18 . . 

0.20 . . 



$. h. m. s. I 
+ 4.75 . 23 49 20. S9 



s. 
0.43 



,-}- 



4 
4 
4 



4.78 



O.J2 
0.07 
0.20| 
0.21 



0.03 
0.03 
0.02 

0.13 -^ 4.92 
6.00 



O.52I 
0.241 
0.44 
O.OI 

0.08 



+ 4.89 



-I- 4 

4- 4 

4- 4 

-H 4 

-H 4 

+ 4 

-H 4 

^ 4 

-I- 4 

I 

+ 4 

-+- 4 

+ 4 

+ 4 

+ 4 

+ 4 

-H 4 

+ 4 

+ 4 

-I- 4 



53 

9 

45 



1.22 — 

49-53- 

5.83 -H 



0.0^) 4 4. 78 4-4 

5.78 . . i+ 4 

0.03 . . i4- 4 

0.01 -I- 5.05 4 4 

0.13!+ 5.37 ;-»- 5 



49 17.89 
51 31.38 



0.5,44.0' ^ 



0.00 

0.00 

I 

2.59 



-H 5 
+ 5 

+ 5 



- 10 20.05 + 
2049.604 0.09 4- 5.36 + 5 



o 12.3 15.0; 
030.833.8; 



32 1.364- 
48 19.18 -I- 
56 56.78 + 

47 56.96-4 
14 36.30- 

29 3-26 4 

30 0.61 4 

38 53.384- 
53 22.09 — 

2 57.30- 



O.IIi 

0.12 -4 5.32 
0.08 -1-5.36 
0.06 4 5.30 
0.83 . . 

I 



-f 5 

+ 5 

-^- 5 

-4 5 

-K 5 



0.081 . . + 5 

0.084- 5.42 -(- 5 

1.39! . • + 5 

0.07 4 5.53 + 5 

0.06 . .4-5 



12 9.82-1- o.ioH- 5.31 

40 7.27 -h 0.06, 

51 5.25 -h 0.17 . . 

o 31.68 4 0.07 4 5.21 
10 0.71 4 0.07 

21 2.0I 4- O.OI -h 5.41 



+ 

-I- 
4 
+ 



78 
83 
83 

84 

85 
86 

86 
87 

88 

91 
92 

77 

78 
78 
81 
81 
82 

90 

91 
91 
92 
93 

93 

95 

98 

98 
21 

25 
25 

30 
34 

34 

35 
36 

36 
36 

36 
36 
36 
36 
36 

37 
38 
38 
39 
39 
39 



I 10 30.31 4- 1.70 

6 40 23.51 - . 

6 53 27.591 o.c-j, 

7 32 24.52 — o.n 

7 55 31.15 -^ 5-44 

8 50 11.03 4- 0,10 

8 58 46.61 — 0.20 

9 26 54.4S -h 0.27 

10 25 52.83 -h 0.06 

I 10 30.18 -r 1.93 

14 o 47.78-56.44 

20 36 54.50' o.a> 

21 45 28.13 

21 47 41.99 . . 

23 53 45.14-1- 0.44 

I 33.16 -h O.II 

I 10 31.62-1- 3.72 

I 

8 13 15.90+ 3-23 

8 50 10.57 — 0.31^ 

8 58 46.45 — 0.30 

9 21 7.25 - 0.17 
10 4 55-99, • • 

10 25 52.89-1- O.II 

1 10 31.40 -^ 3.S4 

14 53 6.17 —65.05 

15 9 54.50— o.o> 
18 45 II. 17 — 0.14 



21 49 23.14 . . 

21 51 36.63 . .1 
I 
I 10 28.3414 I. II 

4 20 55.03 — 0.02 

I 

4 32 6.81 -I- 6.C;0 

4 48 24.65 o.ooi 
4 57 2.22 — 0.04 

5 48 2.38 -4 0.0(> 

6 14 40.83 — 1. 2 1 

6 29 8.70] 

6 30 6.051— o.o^v 

6 38 0.131-1- 0.91 

6 53 27.38— o.io 

7 3 2.60— 0.13 

I 

7 12 15.40 -h 0.03. 

8 40 12.71 . 1 

8 50 10.80— 0.14' 

9 o 37.144- o.iS 
9 10 6.17; . . ' 
9 21 7.41 — 0.02' 



4. Observed over Bi, B^, and D in R. A. 
13. A mistake of half a revolution was made in the reduction of the nadir observations, 
given in subsequent sections. 
14.28. Illumination very bad. 

15. Revolutions doubtful. 

16. Probably one revolution small. 
20. Second not marked on sheet. 

20.40. Wire A used. 

22. Sets D and E in R. A. 
38.44.46.49. Wire B used. 

39. Assumed five revs, wrong in N. P.D. 



The correction — 7".6 is applied to the results 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



11 



Apparent N. 
P. Distance. 



92 II 31.8 

92 II 17.5 

I 23 33.2 

66 29 40.3 

118 48 9.2 

88 26 41.9 

358 54 51.9 
41 26 46.6 
22 20 II. I 

339 59 2.5 

80 I 12.6 

358 36 39-8 
98 31 47.2 
45 II 30.6 

ic^ 41 27.1 

103 9 12.5 

91 40 6.7 

61 38 17.0 

23 36.6 

347 18 50.9 
41 26 47.9 
22 20 9.6 
98 5 35.6 
74 28 41.5 



80 I 11.8 + 6.0 

358 36 43.9 4-10.3 

I 

98 53 43.4 + 8.0 




in 

3 


c 


C 





ti 


■ ^n 


^ 


w 


V 


u 


u 


b< 


f/i 


ka 


mwm 





p. 


u 




II 


— 


4.4 




4.4 


+ 


7.1 


H- 


8.6 



+ 7-9 

-H 7.i 

-h 5-6 

-f- 5.6 

-f 6.8 

+ 6.9 

+ 6.0 

-h 5-0 

- 7.0 

- 7.0 

- 4.4 

- 0.6 

+ 10.3 



-+- 7.5 
4- 7.0 

4-4 
7.6 



4- 



I 23 25.5 
71 7 2.2 

63 26 37.1 
57 2 50.3 
74 47 7.6 
82 37 25.8 
356 36 II. 2 



— i.o 
+ 0.2 

—20.3 
-h 1.2 

+ 1.4 

- 0.3 

-{- 0.6 



2 45 25.3 - 0.5 



16 II 28.5 


+ 2.0 


67 46 49.8 


-H 0.9 


81 54 57.5 


— 2.0 


41 26 40.2 


-h 0.5 


78 48 21.0 




77 46 57.0 




98 5 28.6 


4- 0.5 ■ 



MOON'S-^ 



Semi-diam. 

/ // 
- 15 38.6 



-i 



12 



OBSERVATIONS WITH THE TBAN8IT CIBCLE. 





I 




1 












1 


, ':: y 




• 






• 

it 




SECONDS OF TRANSITS OVER WIRES. 


CORRECTIONS. 


^^ ^M. 


DATE. 


3 ' 




1 

OBJECT. ! 




t 



* 

•I 










Apparent R.! ^^ "^ 


I. 


II. 


1 

III. IV.' V. 


1 
VI. VII. VIII IX. Mean wire. Inst. 


CU)ck Clock 

1 . 1 .1 


Ascension. z - 


■ 


/^ 







5 

1 


> 


1 




i 

1 

1 




' ' 




appar ni. aaopteu. 


S w 


1868. 


1 


m. s. 


1 
s. , 


s. 


s. 


h. m. s. s. 


Fwb 14 


I 1 


c 


Loon is .... 


A. 


3 


.... 42.544.647.1 49.2'5i.5 56.i'57.7 38 4702 4- 


O.IO -1- 


5-3S + 


5.40 


9 38 52.52 -»- 0.01 




2 1 


^ 


Leonis .... 


A. 


• 


57.159.8 1.6 8.5 10.8 13. 1 19. S21. 824. 5 45 10.78 -1- 


O.II + 


5 42 + 


5.40 


9 45 16.29+ 0.03 


■ 


3 




Danai* .... 


A. 


2 


. . 12.315.119.724.629.533.535-^ . • 


3 24.36 + 


0.0.^ 


. . + 


5.40 


10 3 29.84 . . 


I 


4 


>» 


Lotmis .... 


A. 


5 


• « 


. . 28.532.8 . . 41.647.7: . . . . ' 12 37.25 + 


o.oc) + 


5.35 4- 


5.40 


10 12 42.74 — 0.07 


1 


5 


P 


Leonis .... 

1 


A. 


4 


• • 


. • 


39. 143. 1 . . 51.555.6, . . 

1 1 


59.8 25 47.34 + 

1 


o.o(> + 

1 


5.35 + 


5.40 


10 25 52. So -r o.oi 




1 

6 


a 


Coronx* Bo real is . 


A. 


5 


46. 649. 351. 258. 1 0.4 2.6 9. 511. 214.0 29 0.32 + 


1 

o.ii 4- 


5.43 -+- 


5.45 


15 29 5.8? + 0.02 




7 ' 


a 


Serpentis . 


A. 


5 


28. 230. 632. 338. 440. 542. 548.650.3,52. 8 37 40.47 -f 


0.0^) + 


5.47 + 


5.47 


15 37 46.00 o.ty.' 


1 


8 




Moon II, S. 


A. 


5 


40. 643. 244.851. 353. 755. 7 2.1 3.7' ^^^ 4453.49- 


o.oi 


. . ■ + 


5.47 


15 44 58.95 —''•4.02 




9 


d 


Scorpii .... 


A. 


5 


13.4,16.2,17.924.426.628.735.337.1,40.01 52 26.62 — 


0.04 + 


5.37 4- 


5.47 


15 52 32.05 ^ 0. lu 


1 


10 


.'i' 


Scorpii .... 


A. 


5 


27.430.1 


31. 938. 240. 442. 549. 1 50.753.4 

1 1 


57 40.41 - 


0.03 + 


5.50 + 


5.47 


15 57 45.J>5 -!- 0.03 


1 
1 


II 


.r- 


Scorpii .... 


A. 


5 


• • 


■ • 


• • • • 


1 

1 
• • 1 • ■ 


. . ' . . 


1 

■ • • 


1 

• • 


1 

• • 


• ■ 




1 


12 


(5 


Ophiuchi . 


A. 


5 


7.8 10.4 II. 9 1 8. 1 20.222.2.28.4 29.832.4 


7 20.13 4- 


0.03 + 


5.50 ,4- 


5.47 


16 7 25.63 — 0.01 




13 




Saturn I, S. 


A. 


3 


33.5 . . 


37. 842. 046. 450. 655. 0; . . 59.2 13 46.36 — 


0.03 


. . I4- 


5-47 


16 13 51.80 


1 


14 




Saturn II, N. . 


A. 


3 


34.5: . . 


38. 943. 147. 551. 956. 3' . . 0.5 13 47.53 — 


0.03 


. . ' + 


5.47 


16 13 52.99 




15 


a 


Aquilae .... 


E. 


• 


i.6| 4.2 


5.8 II. 9 14. 016. 022. 2 23.826.3 44 13.98 + 


O.Ol) + 


5.3S + 


5.38 


19 14 19.45 + o.ci 




16 


a 


Cygni .... 


E. 


• 


31.7 


35.3 


37.546.249.051.9 0.6 2.6 6.2 36 49.01 -f 

1 1 ' 


0.20 -h 


5.32 + 

1 


5.39 


20 3() 54 . 60 ->- . 07 


15 


17 




Sun I, N. . . . 


E. 


• 


■ ■ 


• • 


' ' t 

7.5 9. 411. 5 13. 6.15. 8' .... 53 11.56 + 


0.04 


1 


5.40 


21 53 17.00 




18 




Sun II, S. . . . 


E. 


• 


12.7 


15. o;i6. 723. 124. 926. 933. 234. 937. 7, 55 25.024- 


0.04 


. . + 


5.40 


21 55 30.46 . . 




19 




Venus I, N. . . 


E. 


• 


15.7 


17.9,19.525.527.629.6.36.037.340.0 2 27.68 -i- 


0.07 


• • !4- 


5.42 


2 33.17 -^' 0.44 


j 


20 




Venus, S. . '. 


E. 


• 


• • 


• • 


1 t 


• • 


• • 1 • • • • • 

1 : 


• • 

1 


1 

• • 

1 


• • 


. 


17 


21 




Moon II . . . 


T. 


3 


58.9 


3.4 


1 
. . 9.9 . . 14.3 


20.9 


1 

. . 25.4 


19 12.13- 


0.20 


. . + 


4.15 


18 19 16. oS —64.72 




22 


a 


Lyra; .... 


T. 


3 


7. 3 10. 5 12. 6 20. 4 22. 9 25. 5I33. 4 35. 3 38. 7 


32 22. 9^) + 


0.05 + 


4.15 4- 


4.15 


18 32 27. 16 O.OC' 




23 


a 


Aquilae 


T. 


3 


• • 


5.2, 9.111.413.615.5,17.521.6 . . 


44 13.41 - 


. 20 -h 


6.30 + 


6.36 


19 44 19.57,4- 0.0: 




24 


a 


Cygni .... 


T. 


3 


• ■ • • 


. . . . 1 . . . . 

1 


• • 


• • • • • • • 


* • 


■ • 


• A 


1 

.... . . 


18 


25 




Sun I, N. . 


A. 


3 


36. 439. 040. 546. 949. J 51.2 


57.459.4. 1.4 4 4903-- 


0.35 


. . + 


6.40 


22 4 55. oS . . 


1 


26 




Sun II, S. . . . 


A. 


2 


. . 57.159.4 1.7 3.8 5.810.1,11.514.21 7 1.62 — 


0.35 


. . + 


6.40 


22 7 7.67; . . 




27 




Mercury I, S. . 


A. 


4 


16. 719. 721. 327. 529. 531. 537. 739. 141. 9 II 29.43 — 


0.28 


. . + 


6.42 


23 II 35.57-^ 0.22 




28 


a 


Andromeda: . 


A. 


3 


13. 1 15.9 17.724.626.929.336.338.040.9 I 26.97 — 


O.OS + 


6.35 4- 


6.44 


I 33.33 4- O.tXj 


1 


29 




Polaris. 


A. 


3 


• • 


. . 22.048.5 9.0 . . 0.0 . . 1 . . 10 II. 00 + 

'1:1 II 


9.68 

1 


. . + 


6.45 


I 10 27.13 + 2.40 

1 




30 


e 


Tauri .... 


A. 


1 

5 


' 1 1 1 1 : 1 
35.538.240.046.448.650.657.158.7 1.4 2048.50- 


0.15 + 


6.62 + 


6.50 


4 20 54.85 — 0. 12 




31 


1 


Anonymous . 


A. 


• 


..... ;56.I 58.1 0.2 2.3 


9.1 10. 1 13.6 32 0.07 — 


0. 10 


. . + 


6.50 


4 32 6.47+ O.i^T 




32 


I 


Auriga 


A. 


5 


3.5 6.5 8. 415. 618. 120. 5 


27.629.532.5 


48 18.02 — 


0.06 + 


6.58 '+ 


6.51 


4 48 24.47 — 0.10 




33 

■ 34 


(5 

1 


Ursjc Min.,S. P. j 


A. 
A. 

1 


5 


7.0 

• • 


23.957.5 • • . . 1 . . 
. . 48.814.540.7 5.4 


22.256.1 13.4 
30.0 .... 

1 
1 


j-14 39-93- 


4.20 


. . + 


6.53 


1 
iS 14 42.26 — 0. ?3 


( 

1 


35 


> 


(ierninorum 


A. 


1 
' 5 


1 , 1 
47.049.751.257.459.6 1.4 


8.1 9.712.4 


29 59.61 — 


0.16 1- 


6.60 + 


6 • 54 


6 30 5.99 — o.<:«6 




36 


51 


Cephei .... 


A. 


5 


33.327.059.021.5 5.5 . . 


. . 1 . . . . 


37 47.44 -f 


4.82 


. . + 


6.54 


6 37 58. So -«- o.Si 




37 




Uranus I, S 


A. 


5 


27.129.033.6,35.637.740.142.346.648.3 


39 37.t^i - 


0.12 


. . + 


6.54 


6 39 44.231+ 0. 11 




38 




Uranus, N. 


A. 


. 


. . |. .1 . .i. . i. . 


• • • 


• • 


• • 


• ■ 






39 


H 


Pnusepe 


A. 


1 
1 . 


57.3 


0.6 


2.2, 8.6 10.7 13. 019. 020. «> 24. 3 

1 1 


32 10.69 + 


O.IO 


. . + 


6.57 


8 32 17.36+ 5.74 




40 




Meletc .... 


A. 


1 
4 


• • 


' , 1 ! 

1 , 1 ■ ■ 

• • ! ■••.•• 


■ • 


« • 


. 


■ • 


• • 


• 




1 


41 


F 


Hydnc .... 


A. 


' 5 


29. 6 32. 2 33. 8 39. 941. 8 43 -9 50. 2 51. 8 54. 3! 39 41.94- 


0.21 + 


6.58 i + 


6.57 


8 39 48.30— 0.01 




42 


K 


Cancri .... 


A. 


• 


18. 4I . . 26.428.630.632.834.8 . . 43.0, 30.67 — 


0.19 + 


6.48 


+ 


6. 58 


9 37.06;+ 0. 10 




43 




Melpomene 


A. 


4 


23. 3 25. 7 27. 5 33 • 7 35. 4 37. 7;44. 1 45. 7 4S. 2 


5 35.75- 


0.18 


• • 


+ 


6.58 


9 5 42.15 . . 


1 


44 




Danae* .... 


A. 


2 


28.4130. 832. 6 


.. 40.71 . . 


49. 451. 154.0 


59 41.00 — 


0.17 


. 


+ 


6.59 


9 59 47.42 . . 




45 


a 


Leonis .... 


A. 


• 


• • 


• • 


13.2 


15.217.3 


19.4 


23.6 


25.227.8 


I 15.25- 


0.18 + 


6.59 


+ 


6.59 


10 1 21.66 — 0.01 


19 


46 




Sun I, N. . 


H. 


3 


27.4 


29.531.4 


36.038.1 


40.2 


42.2 


44.2 . . 


8 39.96- 


0.26 

1 


. . + 


6.67 


22 8 46.37 


• * 




47 




Sun II, S. . . . 


H. 


3 


39.7:42.444.3:50.352.454.4 


o.6| 2.2 5.1 


10 52.38 — 


0.26 




. •. + 


6.67 


22 10 58.79 


• • 




48 




Mercury I, (center) 


H. 


2 


29.932.334.040.242.244.1 


50.251.754.4: 15 42.12 — 


0.22 




1 


6.68 


23 15 48.58 + 0.23 




. 49 


a 


AndromednB . 


H. 


3 


12.5 


15.4 17.224.1 26.628.8 


35.537.440.2, I 26.52- 


0.04 


+ 


6.74 ;-H 


6.69 


I 33- 17 — 0.05 


1 


50 




Venus I, S. . . 


H. 


I 


47.2 


50.0 


51.6 


57.5159-5 


1.8 


8.0 


9.3 


2.0 


19 59-65- 


0.20 




• • 


+ 


6.70 


20 6.15 + 0.4^ 

! 1 



1. 3. 4. 7. 9. 10. II. 26. 27. 35. 37. 38. 39. 40. 43. 44. Wire B used. 

46. Seems one rev. wrong in N. P. D. 



OB8EHVATI0NB WITH THE TRANSIT CIBCLE. 



MICROSCOPE MICROMS. 



TELESCOPE MICROMETER. 



, Apparent i 
Zeniih DJs- 

lance. South. 



9 25.5 
29.0 



000 


43-6 : 


14 30 44 


939 


43.6 1 
43.6 ■ 
43-6 


as 25 30 
.8 „ 50 
iS 54 9 



42 


>3 47. a| 808 


+ 


^6.o 




4 44-0| 8o8 




IS. 8 




4 27.1' 808 


+ 


IS. 8 


lo 




+ 


1^.6 


54 


5 <).S 710 


- 





W)2 1 43.U , 5' 53 0.0 670 i+ I 
- ■ ' 43-0 I 39 '9 34-8 SQS + 
"95 I 43-0 3y-29 52-3 . - '+ 



83 9 2&. 
105 24 18, 
M3 14 27. 



3.5 1 S9.6 
4.9 ' 24-2 



'■> 58 

5 52 I 
' 30; 26 I 



27 38 ■ 



. , |40. 
490 ' 40- 
775 I 40. 
279 I 40- 



50 17 53 
50 50 18 
43 23 27 



5 56 : 
305 3' I 





28 


57 
30 


54 
4& 


23 


2(> 


8 


59 



75 48 : 

76 13 J 
74 25 1 



. ..oi 



fur summary of the tUm, 



14 



OBSERVATIONS WITH THE TEANSIT CIRCLE. 



• 






• 

^ 1 




SECONDS OF TRANSITS OVER WIRES. 


CORRECTIONS. 






« 




DATE. 1 




OBJECT. 


> 


• 

"S 




Mean wire. 






Clock 

f 


Clock 

1 .^ J 


Apparent R. ' 
Ascension. 




1. ' II. 


1 
III. IV. V. VI. VII. VIII IX. 


I 


1 
nst. 




Z 




- - 


<ii^ 



s: 


h 


1 


m. 


s. 


appar ni. 
s. s. 


adopted. 

1 

s. 








1 


5C 


1868. 


h. 


m. 


s. 


5. 


Feb. 19 I 




Venus, N. . 


H. 


I 




• 


• ■ 


• • 


• • 


• • 


. 


• 


• 


• • 


2 




Polaris .... 


H. 


4. 


. . . . 17.042.5 6.029.054.0 . . . . 


10 


5 . 70 4- II . 29 


• • 


■+■ 6.71 


I 


10 


23 . 70 - 


0.20 


3 




Weisse 12 10 . 


H. 


2 


47.450.1 51.757.9 0.3 2.5 8. 810. 313. 1 


57 


0.23 — 


O.II 


• • 


4- 6.69 


3 


57 


6.81 -^ 


6.07 


4 


■> • 


Tauri .... 


H. 


2 


58.0.0.6 2.3 8.5 10.6 12.7 19. 1 20.723.5 


12 


10.67 — 


0.12 -H 


6.(k) 


-1- 6.74 


4 


12 


17.29^ 


0.05 


5 


A 


Ursa; Minoris, S.P. 


H. 


4 


.... '50.515.043.0, 8.031.5 . . . . 

1 


14 


41.60 — 


4.89 


» • 


-h 6.76 


18 


14 43.27- 


O.IO 


6 


7 


Geminorum 


II. 


4 


46.6149.350.857.259-4 1.5 7-7 9-4 12. 1 


29 


59-34- 


o.ii -h 


6.82 


-♦- 6.77 


6 


30 


F 

6.00 — 


0.5 


7 




Tranus 


!!• 


4 


18.7I21.5 23.229.932.1 34. 2 4 1. 1 42.745.2 


40 


32.07- 


0.07 


• • 


+ 6.77 


6 


40 38.77 


. 


8 


T 


Draconis, S. P. 


11. 


3 


13.7122.327. 5 48.9 55. 1' 3.824.229.538.1 


18 


55.<^>- 


I.OC; 


« • 


-h 6.78 


19 


18 


1.59 — 


0.03 


9 


a- 


(leminorum 


H. 


3 


50.453.255.1 2.4 4.6' 7.3 14.5 16.2 19. 1 


25 


4.75- 


0.01 -h 


6.77 


4- 6.78 


7 


25 


11.52 -h 


0.21 


10 


.i 


Gcininorum 


11. 


3 


54.5 57-^>59-3 6.1 8.5 10.8 17.6 19.622.4 


37 


8.49- 


0.04 -h 


6.82 


+ 6.78 


7 


37 


15.23- 


0.04 


' II 


f 


Draconis, S. P. . 


H. 


3 


5i.6'59.7 4.722.327.634.1 51.256.7 3.7 


48 


27.95- 


0.94 




4- 6. 78 


19 


48- 


33.79- 


O.OI 


12 


X 


I'rsati Minoris.S.P. 


11. 


3 


. . 1 . . , . . 49.030.022.012.0 . . i . . 


55 


34.27- 


14.89 




-f 6.79 ' 


19 


55 


26.17- 


^ • / — 


13 


K 


Cephei, S. P. . 


11. 


3 


11.5i22.030.2l . . 6.8 . . 44.452.1' 3.8 


13 


7.39- 


1.26, 




H- 6.79 


20 


13 


12.92 -(- 


0.02 


14 


I 


Ursic Majoris . 


H. 


4 


45-^'49.5 51-7' 0.9 4.3 7.216.318.722.6 


50 


4.0()-h 


0. 14' 




+ 6.80 


8 


50 


11.03 4- 


O.IO 


15 


a 


Ursa' Majoris . 


11. 


3 


7.5 14. 1 18.334.339.545.3 1.3 5111S. 


58 39.69 -H 


0.50 




-h 6.80 


8 


5b 46. W + 


O.lS 


16 


a 


Hydrae .... 


H. 


4 


48.551.052.758.8 I.I 2.9 9. 210. 713. 2 


21 


o.ip — 


0.24 -1- 


6.78 


4- 6.80 


9 


21 


7.464- 


0.02 


17 


P 


Leon is .... 


H. 


4 


33- S3f'- 337. ^44. 1 4^1.248. 2 54. 3 55. 9 58. 3 


25 


46.10 — 


0.15 -h 


6.74 


-h 6. 82 


10 


25 


52.88+ 


0.04 


IS 


I 


Leonis .... 


H. 


4 


1.2 3.8 5.311.5 13.5 15. 721. 923. 626.1 


42 


1 3 . 62 — 


0.14 4- 


6.79 


-}- 6.82 


10 


42 


20.30 + 


O.IO 


19 


a 


Cygni .... 


E. 


• 


30.534.036.045.147.750.559.2 1.3 4.8 


36 


47.68 + 


0.10 + 


6.84 


-h 6.84 


20 


36 


54.62 


O.Or.> 


20 20 




Sun I, N. . 


E. 


■ 


17.6 19. 9 2 1. 8 28.1 30. 2 32. 2 38. 8 40. 2 42. 6 


12 


30.16- 


0.26 


• ■ 


4- 6.93 


22 


12 


36.83 


• *• 


• 21 




Sun II, S. . . . 


E. 


• 


30.632.834.440.642.744.751.052.5 55.1 


14 


42.71 - 


0.26 


• • 


+ 6.93 


22 


14 


49.38 


• > 


21 ' 22 


>• 


Cygni .... 


N. 


2 


1 ' 
56.659.5 1.4 8.3 10. 613. 2 20.1 21 .824.7 


7 


io.6<) — 


0. 10 


• 


-h 736 


21 


7 


17.95- 


00,1 


22 23 




Sun, S 


X. 


n 




• 


• • 


• • 


• « 


• « 


• 


• 


■ • 




24 




Sun, N. . . . 


N. 


2 


. .. .. .. ..,.. .. .. .. 


, 


• « 


• ■ 


• • 


• • 


• 


• 


1 
• • 


» • 


25 




Mcrcurj' I, S. . 


N. 


2 


36. 2, 38. 640. 446. 748. 750. 4 56.8 58.3 0.8 


25 


48 . 54 - 


0.27 


• • 


H- 7.48 


23 


25 


55.75+ 


0.25 


26 


a 


Andromedie . 


N. 


3 


12.015.0 16. 7 23. 5 25.8 28.035.1 36.839.8 


1 


25.86- 


0. 10 -f 


7.45 


+ 7.49 





I 


33-25! + 


0.04 


27 




Pegasi .... 


N. 


2 


5.7, 8.3 9.81 . . 18.3 . . 26.828.331.0 

, 1 1 


6 


18.31 — 

1 


0.18 + 


7.37 


'-+- 7.49 





6 


25.62' + 

1 


0.10 


28 




Venus I, S. 


N. 


3 


1 1 
52.755-356.8 13. 214. 617. 1 


33 


1 

4.95- 


0.23! 




+ 7.49 





33 


12.21 




! 29 




Venus II, N. . . 


N. 


3 


. . . . I 1.5, 3-6' 5-7, 7-7i 9.^ ■ • • • 


33 


5.67- 


0.23; 




+ 7.49 





33 


12.93 


• a 


1 30 




Polaris .... 


N. 


• 


• • ' 90|30-5 


55.5 .... 


10 


8.23 + 


7.18I 




+ 7.50 


I 


zo 


22.91 + 


I.2t> 


i 31 


a 


Camelopardalis . 


N. 


4 


iS.9'25.1 28.944.049.1 54.0 


9.2 13.0 19.1 


40 49.03 4- 


0.24I 




+ 7.54 


4 


40 


56.81- 


O.S2 




32 


e 


Ursx Minoris, S.P. 


N. 


• 


. . . . 56. 1 10.926.1 


41.6 


56.6, . . 


59 


26.26 — 

1 


1.46 

1 




,+ 7.55 


16 


59 


32.35- 


O.II 


1 


33 


a 


Aurig», (R.) . 


N. 


"3 


.... '44.147.1 50.052.8 


55.8.. . . 


6 


1 

49.96 — 


0. 17 


■ ■ 


+ 7.55 


5 


6 


57.34 + 


0. 16 




34 


,i 


Tauri .... 


N. 


4 


36. 1 39. i|40. S 47. 7 50. 152. 4 


59.3 i.o 4.0 


17 


50.o(^) — 


O.II -+- 


7.55 


+ 7.55 


5 


17 


57.50- 


0.01 


35 


rJ 


Orionis 


N. 


3 


56.759.2 


0.8 7.0 9.011.1 


I7,iii8.62i.2 


25 


8.97- 


0.25 4- 


7.60 


+ 7.55 


5 


25 


16.27- 


0.07 


36 


» 


Columbae . 


N. 


3 


30.934.1 


35.843.245-748.1 


55.557.5; 0.4 


34 


45.69- 


0.46 + 


7.57 


+ 7.55 


5 


34 


52.78- 


o.oS 


' 37 


d 


Ursie Minoris, S.P. 


N. 


• 


• • • • '48-7,13-339-7 5-5i30.5 . . 


• • 


M 


39-42- 


3.i5j 


• • 


+ 7.56 

1 


6 


14 


53-83- 


0.50 


3S 




Uranus I, (center) 


N. 


• 


i.4i 4.1 5.9 .... . . 23.725.228.1 


39 


14.73- 


0.14 




• • 


-1- 7.56 


6 


39 


22.15 


* • 




39 




Uranus II . . . 


N. 


• 


.... ,10.612.815.017.119.4 . . i . . 


39 


14.98- 


0.14 




a • 


+ 7.56 


6 


39 


22 . 40. 


* 


40 


50 


Draconis, S. P. 


N. 


3 


.... 11.219.227.335.543.8 .... 


50 


27.40- 


o.Si 




• • 


-+- 7.57 


18 


50 34.16-h 


0.12 


41 


a 


Canis Minoris 


N. 


3 


7.3 9.0,13.015.017.1,19.1 21.1 25.226.9 


32 


17.08 — 


0.22j-h 


7.69 


,+ 7.58 


7 


32 


24.44 


— 


0.13 


1 42 


.i 


Geminorum . 


N. 


3 


. . . . 1 J . 1 


5.3 7.8 10.012.3 . . . . 


37 


7.70- 


0.11 4- 


7.65 


+ 7.58 


7 


37 


15.17 




0.07 




43 


A 


Ursae Minoris, S.P. 


N. 


• 


. • . . 


• • 


18.028.047.5 

1 


55 


31.40- 


9.55 


• • 


+ 7.58 


7 


55 


29.43 - 

1 


0.95 


Mar. 10 , 44 




Sun I, S. . 


A. 


• 


24.526.8128.6 


34. 536. 7'38. 844. 946. 649. 1 


13 


36.72- 


0.47 


• • 


+ 12.85 


23 


13 49.10 


« 


45 




Sun II, N. . 


A. 


• 


3 -9 36. 4 37 •9;44. 2 46. 3 48. 5 54-6 56. 2. 58. 6 


15 


46.29- 


0.47 


• • 


4-12.85 


23 


15 


58.67 


• « 


46 




Polaris .... 


A. 


2.1 


• • 


56.0I43.0 


4.033.054.0 18.0 .... 


10 


30.85,- 


29.86 


• ■ 


-f 12.88 


I 


10 


13.87 + 


1-73 


47 


a 


Arietis .... 


A. 


2 


• • 


■ ■ • • 


.... 35.8,40.342.144.7 

1 ! 1 


59 


31.46- 


0.80-1- 


12.89 


-M2.89 


1 


59 43.55 H- 


O.Ol 


16 48 


67 


Piazzi .... 


n. 


4 


19.1 26.1 30.4 


47.153-058.3 


15.4 19.5:26.6 


16 


52.83: + 


0.08 


• • 


I + 15.47 


I 


17 


8.3s' 




49 

1 


a 


Canis Minoris 


H. 


4 


56.359.0 0.5 

1 


6.7 8.5 


10.7 


16.9 


18. 421.0 


32 


8.67 


-h 


0.051-1- 


15.52 


+ 15.47 


7 


32 


24.19 


^^ 


0.07 



31. Seconds uncertain. Two discordant marks on sheet. 
44.45. Both wrong in N. P. D. 



OBSERVATIONS WITH TDE TRANSIT CIRCLE. 



15 



Apparent. 
Zenith Dis- 
tance, South. 



37 23 35.3 
310 i8 14.2 

22 37 36.3 

23 34 59-3 
305 31 12.9 

22 22 52.3 

15 22 15.4 

292 2 34.0 

643 8.3 

10 33 3.0 




15.4 


42 55 


55.8 


15-4 


42 24 


6.7 


15.4 


310 18 


15.9 


14.0 


330 10 


14.0 


14.0 


33 19 


35.4 



No. Barom. 



External Attached 
Therm. Therm. 



' m. 



22 30.363 



25.2 



72.0 



For summary of the elements of reduetion see page 3. 



o 
6 ^ 



545 
540 

576 

587 

655 



584 



815 

• • 

805 

• • 

795 



801 
796 

855 



S62 



869 

87S 

8S2 



891 



901 



4()o 



415 



Refraction. 



Apparent N. 
P. Distance. 



// 



// 



— I 



— I 



44.3 

8.8 

24.4 

25.5 
23.2 



4- 

670 -h 
690 — 



710 



718 - 



24.5 
16.4 

2 27.2 

7.0 

11.2- 

2 54.6 

1 17.5 

2 1.9 
10.3 

33-2 



725 


-f- 


I 4.7 


732 


-h 


33-4 


730 


+ 


31.7 


655 


l_ 


6.2 



1+ ^ 

H- 1 



8.7 
9.9 



88 30 40.8 
I 23 26.6 

73 44 21.9 

74 41 46.0 
356 36 10.9 

73 29 38.0 

66 28 53.0 

343 6 28.0 

57 49 36.5 
61 39 35.4 

339 55 50.3 
358 54 42.0 

347 18 42.1 

41 26 39.4 

22 20 2.3 

98 5 29.0 
80 I 5.2 

78 45 37.1 
45 II 27.0 

100 42 48.9 
loi 15 II. 9 



(A 



W) 



c o 



— 4.2 

— 0.8 
-28.8 

— 0.2 
1.4 



-»- 



-+- 0.3 

— 0.1 
-H O.I 

— i.o 

— 0.8 



+ 



+ 



1.8 
0.9 
0.6 

0.3, 
1.4 I 

I 
o. I I 

0.8 

0.3 I 

0.5 



- 6.8 

— 6.8 



825 l-(- 10. o 60 iS 51.9 -f 1.6 



-f- I 12.0 

-h I 10.7 

+ 53-' 

-h II. 4 

-h 27.9 



-f 



I— I 



-h 



44 

44 
12 

32 
42 



7 
II 

51 
3 22 
I 27 



.4 
.4 
.4 
. I 

•9 

7 

5 
I 

2 

7 



4- 17.2 



100 31 52.7 

99 59 33-4 
91 54 47.0 

61 38 20.5 

75 33 7.5 

86 56 29.9 

86 56 16.5 

310 23 27.5 

23 53 3.4 
352 14 47.7 

44 8 21.4 

61 30 31.6 

90 24 13.7 

124 9 II. 9 

356 36 10.6 

66 28 38 



4- 



6.8 

6.7| 

6.4 I 

1.5 ' 
0,9 

4.1 
4.1 
0.4 
0.2 
0.1 

1.4 

0.3 
0:3 

3.2 
1.8 



5 — 0.1 



— 2 19. I I 345 16 28.9 '+ 1.3 



— I 21. I 






+ 



53.2 

52.2 

I 7.4 

32.3 
37.0 



353 54 41.8 

c>4 3 10.2 

93 31 20.2 

I 23 29.7 

21 16 2.9 
84 26 33.6 



MOONS— 



-0.2| 

- 6.0 

- 5.9 

- 2.7 

- 3-0 

- 1.3 



No. 



Parallax. Semi-diam. 



16 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 





. 


1 






1 
1 1 


SECONDS OF TRANSITS OVER WIRES. 


1 

! CORRECTIONS. 


1 






DATE. 


1 ka 

n 




OBJECT. 


> 






^ Apparent R. ^ f 








be 
.^ I. 


IL 


III. IV. 


V. VI. 


; 1 

VII.VIIl'lX. 


Mean wire. 


. ' Clock Clock 
*"*'• lappar'nt. adopted. 

1 


1 Ascension. r ^ 




y. 


\ 


— _ _ _ — 





^ • 1 






1 

1 

1 

1 


i 

i 




I _ 
h. 


m. 




1868. 


. 1 


1 


1 1 


m. s. s. 1 s. 


S. 


S. ' S. 


Mar. 16 


I .? 


Geminorum 


' H. 


; 4 I56. 5158.3' 1-2, 8.o;io.2i2.6'i9.42i.223.9 


45 10.14 + 0.06 +15.54 


+-I5.48 


7 45 


25.68 — O.I<« 




2 


/. 


Ursae Minoris, S.P. 


H. 


4 


. . . . j . . 148.0,32.020.0. 8.0 


' 55 33.62- 0.37 . . 


+ 15.48 


7 


55 


48.73- .-•- 


« 


3 


L 


L'rsae Majoris . 


H. 


4 


36.740.5 


42.952.155.258.2' 7.4 9.913.7 


49 55.18 -h 0.07 . . 


+ 15.49 


8 


50 


10.74 — o.i" 


1 


1 4 

1 


K 


Cancri .... 


H. 


4 


9. on. 4 


13. 1 


19.3 


21.323.529.731.333.8 

II'! 


21.38 4- 0.05 -M5.37 

1 . 1 


■+15.49 


9 





36.92 -r- 0. 12 


17 


1 
5 




Sun I, S. . 


. A. 


• 


• • 1 • • 

1 


6.5 


8.5 


10.7 


1 
12.8 14.8 

1 


■ 1 

18.920.4 


49 10. 6<) 


• • 


• . 


• 


• 


. . . . 
1 


iS 


6 




Sun I, N. . 


H. 


3 I36.2 39.0 


40.1146.5 


1 
48.650.656.9 


58.3 


I.O 


1 

52 48.58 + 0.50 


• • 


+ 16.0S 


23 


53 


1 
5.16 . . 




7 ' 


Sun II, S. . . . 


H. 


3 ;45.448.i'49-755-7 


57.759-7 5.7 


7.3 10. 


54 57.70 4- 0.50 . • 


+ 16.08 


' 23 


55 


14. 2S . . 




8 . 


Polaris .... 


H. 


1 


22. 046. o| I 3. 036. 058.0 


• • • • 


10 11.30— 17.12 . . 


+ 16. 10 


I 


10 


10. 2v^ + 0.c> 




9 ■ 


Venus I, N. . 


H. 


I 55. 457-7 


59. 5: 5-8 7. 910.1,16. 5 


18. 1 20.8 

1 


23 7.98 + 0.39 . . 


+ 16.12 


1 2 


23 


24.49- 0.55 




10 


Venus S. . . . 


H. 


1 


• • 


• • 


■ 


• • 


• • 


m m 


1 

1 


1 

1 • • . 


• • • • 


• • 


■ 


a 


* • • ' 




II i fl 


(leminorum 


H. 


• 


• • 


• • 


• • 


• V 


• • 


. . 


m • 


■ • 


■ • 


... 


1 


• • 


• 


• 


• • • • 




12 


a-* 


Geminorum . 


H. 


. 40- 1 


43.345.2152.2154.657.1 


4.3 


6.1 


d.8 


25 54.63-1- 0.25-I-16.20 -M6.20 


7 


26 


11. oS + o.;<) 




13 


3 


Geminorum 


H. 


. 44.3 


47.4,49.1 


56.158.3 0.7 


7.6 


9.4 


12.2 


36 58.34 -h 0.28-1-16.24 -1-16.20 


+ 7 


37 


14.84— 0.02 




14 


<> 


(ieminorum 


H. 


. 55.4 


58.31 0.2 


6.7 9. 311. 5 


18.420.223.0 


45 9.22 -h 0.30-1-16.19 -1-16.21 


7 


45 


25.73 — 0.02 




15 


/ 


Ursa; Minoris, S.P. 


H. 


5 • • 


. . I40.0 


58.0 


9.o'20.0i37.o . . ' . 

I 1 . 1 


55 8.8o|-f-23.2S . . -1-16.21 


19 


55 


48.29— 2.23 




16 , K 


rephei, S. P. . 


H. 


5 04 


12. 1 19.0 


46.6 


56.1 


5.233-440.552.3 


, 12 56.18 -1- 2.46' . . -I-16.22 


20 


13 


14.86 + 0.07 




17 


f 


l\ydTx .... 


H. 


. 19. 121. 523. 2 


29.3 


31.333.439.741.243.7 


39 31. 38-1- 0.46 + 16.25 -hi6.22 


8 


39 


48.of>— o.tt} 




18 


I 


Ursa^ Majoris . 


H. 


4 36.039.942.1 


51.3 


54.357.3, 6.7 g-^l^'O 


49 54.41 
^ 20.16 


+ 0.04 . . +16.23 


8 


50 


10. 6.^ -^ 0.07 




'9 « 

20 1 


Cancri . . . -] 


H. 
H. 


; 7.8 


10.3 


II. 8 


18. 1 


20.1 22.228.5 

1 
1 


30.0 


32.6 


— 0.42+16.20 +16.23 


9 





36.81 + 0.03 




21 1 .? 


Cephei, S. P. . 


H. 


. I.I 8.3 


13.031. 1 


37.1 


43.0 


0.7 


5.1 


12.8 


26 36.91 f 1.75 . . -1-16.23 


9 


26 


54.89 — 0.1 1 




22 ' ■ 


Anonymous . 


H. 




• • 33.0 


35. 1 37. 539. 6|4i. 946. 3:48. 1 


50.9 


39 3740+ 0.32 . . -1- 16.24 


9 


39 


53-0 • • 




23 79 


Draconis, S. P. 


H. 




II. 2 19.9 


24.4 


45.552.5 


0.120.525.635.4 


50 52.79 -}- 1. 98 . . +16.24 


9 


50 


1 1. 01 — 0.29 


1 
1 


24 « 


Leonis .... 


H. 




52.4551 


56.6 


3.0J 5.1 


7.013.314.917.5 


I 4.99 -f- 0.41 -h 16. 25 +16.24 


10 


I 


21. (>4 — 0.02 


1 

1 


25 


32 


Crsaj Majoris . 


H. 




41. 347. 751. 4 

1 


6.1,11.1 16. 1 31. 1 34.S40.7 

1 J . ' 


8 II. 14— 0.42 . . -I-16.25 

1 


10 


8 


26.97 -r o.w 


1 


26 ; ' 


Leonis . . . . ' 


H. 




1 1 
13-T 16.017.4 


24.026. 1 28.334.936.5 39. 1 


12 26.16+ 0.36+16.23 f 16.25 


10 


12 


42.77 -r 0.04 




27 /^ 


Leonis .... 


H. 


. l22.b 25.4 27.033. I 35-237.143.445.147.7 


25 35.20+ 0.43+16.23 f 16.25 


10 


25 


51.SS — n.02 




28 / 

1 


Leonis .... 


11. 


3 5i.353.«;55-4 1.6 3-7 57 n 9 ^3-6 159 


42 3.66+ 0.43+16.27 +16.26 


10 


42 


20.35 + o.c^^ 




29 


Circe .... 


H. 


2 . . . . ; . . 12.1 135 15-6 ...... 


37 13.73+ 0.49 . . +16.27 


II 


37 


30.49 




30 


lo 


H. 


I ,27.330.5 • • • • 404 • . . - 49-2'5i.4 


32 39.76+ 0.56 . . +16.28 


12 


32 


56.f>o 




31 


Polaris, S. P. . . 


H. 


■ 2 ; . . 

1 


. . ;22.oi 0.035.014.048.0 

1 1 ' 


• • 


• • 


9 35.80+18.24 . . -H 16.31 


I 


10 


10.35 + 0.S4 

1 


19 


32 




Sun I, N. . 


E. 


1 
3 '14.7 


17.2 iS. 824. 7 


; 1 
26.728.734.7 


36.6 


39.2 


56 26.81 + 0.40 . . '+16.50 


23 


56 


1 
43.71 . . 




33 




Sun II, S. . . . 


E. 


2 1 . . 


31.3,34.0 


36.1 37.9,40.044.445.848.1 


58 35.94+ 0.40 . . +16.50 


23 


58 


52.84 . . 




34 




Polaris .... 


N. 


• • • 


• > 1 • • 


• • 1 • • 


. . 1 . . I42.0I3I.O 


10 6.75— II. 81 . . +16.51 


I 


10 


11.45 • • 




35 


Polaris . . . . ! 


E. 


• 1 • • 


. . 


• • 


• • • • 


. . , 2.0 . . 


• • 


10 15.00— II. 81 . . '+16. 51 


I 


10 


19.70 




36 ■ 


Venus I. N. . . 


E. 




25.127.8 


29- 3 


35.6 


37.7 


39.846.147.9 


50.4 


27 37.74-+ 0.31 . . 1+16.52 


2 


27 


54.57 ^- 0.55 




37 


Venus, S. . . . 


E. 




. . . . 


• ■ 


• • 


• • 


• ■ 


■ • 


■ • 


• • 


• • * 


. .1 . . 


• • 


• 


* 


• • • • 


1 


38 


a 


Ceti .... 


E. 




53.355.7 


57.2 


3.3 


5.4 7.5! 


13. 615. 217. 7 


55 5.43+- 0.35+16.45 I + 16.54 


2 


55 


22.32 + O.II 




39 


Uranus 


E. 


2 


54.157.058.6 


5-2 


7.4' 9. 6116. 8 18. 320. 1 


38 7.46+ 0.26 . . +16.60 


6 


38 


24.32 - • 




40 f 


Canis Majoris . ' 


E. 




55.758.6 0.5 


7.6 


9.8 I2.o'l9.22I.O;24.0 


53 9.82+0.36+16.72 +16.60 


6 


53 


26.78 — 0.14 




41 


d 


Geminorum 


E. 




. ■ 1 . . :53.6 

1 1 


56.058.0 0.1 

1 


2.3' . . 


• • 


II 58.00+ 0.25+16.61 

1 


+ 16.61 


7 


12 


14.86 — 0.03 




42 


A 


Ursae Min., S. P. . 


E. 


I 


1 


• • 


51.0 


16. 025. 033. 048. Oj . . 


• • 


1 ' 
55 22.75+10.49 . . 


+ 16.62 


19 


55 


49.86— 1.55 




43 


A 


Prajsepe 


E. 


• 


. . 


• • 


• • 




• • 


• « 


• • 


• « • 


• • • • 


• • 


• 


• 


. . 




44 


F 


Praescpe 


E. 


• 


. • 


■ • 


• • 


• • 


1 

• • • • 


• ■ 


• • 


■ • 


■ • • 


• • • • 


• • 


• 


• 


• -1 ■ • 


1 


45 


/ 


Ursa; Majoris . 


E. 


■ 


35.539.5 


40.750.754.1,57.2; 6.4 8.7:12.3 


49 53.90 + 0.14 . . 


+ 16.63 


8 


50 


10.67+ o.o^ 




46 


K 


Cancri .... 


E. 


I 


7.4 10. 1 

« 


11.5 


18.1 


20.1 


22.1 28.429.932.5 


20.01 + 0.26+16.50 

1 


+ 16.63 


9 





36.90 + 0.13 




47 


e 


Leonis, (R.) 


E. 


• 


52.655.6 


57.2 


3-8 


6.0 


8.1 


1 1 
15.016.6,19.6 


38 6. of) — 0.30 


+ 16.64 


9 


38 


22.30— 0.14 




48 


79 


Draconis, S. P. 


E. 


• 


11.320.5,25.4 


47.053.7 


1.021.226.936.4 


50 53.76+ 0.91 . . 


+ 16.64 


21 


51 


11.31 — 0.03 




49 


a 


Leonis .... 


E. 


• 


52.1,54.9 

1 


56.4 


2.6 4.7 


6. 713. 1 14.8 17.2 


I 4.72 + 0.25 +16.67 


+ 16.65 


10 


I 


21 .62 — 0.03 

1 



19.20. The microscopes read as in line 19, but in adjusting illumination of microscope III the readings were accidentally changed to those of line 

20, the circle being clamped all the time. The nadir, of course, changed by the same amount. 
43.48. Wire A used. 

48. Bisections at D3, C3, Bi. 



OBSEBVATIONS WITH THE TRANSIT CIBCLE. 



17 



E 
7. 



I 

2 

3 
4 



6 

7 

t< 

9 

lO 

II 

12 

13 
14 
15 

i6 



Circle 
Division. 



MICROSCOPE MICROMS. 



I. 



21 
22 
23 

24 
25 

26 

27 

28 

29 

30 
31 

32 

33 

34 

35 
36 

37 

38 

39 
40 

41 

42 
43 
44 
45 
46 



r. 



II. 



// 



// 



II 42 
307 46 

350 i6 
27 36 

40 6 

39 12 

39 44 
310 14 

23 32 

23 32 

16 36 
6 38 

10 28 

11 42 
307 46 



2.4 

27.5 
29.6 

3.2 



0.2 
26.4 
28.0 

i.o 



3.5 1 7.5 



10 
10 



6.1 

6.0 

2.9 

10 10.5 

10 10.5 



296 10 

17 31 54 
i3 350 16 

19 ( 

20 ) 



27 36 



10 
10 
10 



288 52 

14 36 
291 56 

26 12 
333 4 

18 18 
28 50 

27 34 

37 50 
48 o 

307 26 

38 48 

39 20 

310 14 
23 6 

23 6 
35 16 

15 18 
67 36 

16 36 

307 44 
18 34 
18 34 

350 16 
27 38 



6.2 
4.0 

3.9 
7.6 

2^5 

6.0 
6.6 

9-7 
jio 2.1 

\ 26.5 

10 0.2 

27.5 
23.8 

10 2.0 

27.5 



9 25 


5 


10 


3 


.0 




28 


6 


10 


4 


.1 




I 


5 


9 


25 


.6 



9 27^8 
10 1.4 

9 26.4 
10 0.2 



10 

10 
10 

9 



0.2 
26.2 

0.3 
2.2 

24.3 



47 


165 26 


48 


291 56 


49 


26 14 



9 23.8 
10 8.2 
10 8.2 

9 29.3 
10 6.6 



7.2 
0.4 
10 10. o 



10 



4.6 

4.5 
37 
9.5 
9-5 

3^4 

33 

2.5 

7^3 
2.6 

6.1 

59 

8.8 

1^5 
24.1 

29.2 
26.3 
23.0 
0.0 
26.0 

23.5 

0.3 
26.1 

1.4 
0.0 

25^5 

26.7 
28.9 

26.2 
2.2 

2.2 

24.8 
0.8 
1.0 

22.8 

23.2 
6.8 
6.8 

28.8 

4.4 

6.6 

29.5 

8.2 



III. 



IV. 



29.4 
26.0 

27.6 

29.4 

0.8 

0.5 
1.8 
2.6 

7.3 
7^3 

1.4 
2.1 

6.0 
2.4 

6.5 

2.9 

8.2 

28.5 
23.5 

0.0 
26.2 

24^ 5 
29.4 

27.1 

22.6 
29.9 
25.0 

©•5 

29.3 
26.5 

23.9 

28.8 

25.4 
27.0 

27.0 
22.3 
29.5 
0.2 
21.0 

23.8 
6.0 
6.0 

28.2 
3.2 

5.7 
0.8 

S.o 



TELESCOPE MICROMETER. 



Rev. 



II 

29.0 
26.8 
27.2 

05 
29.6 

3.5 
2.8 

3.0 

.6.8 

6.8 

1^5 
1.4 

I.I 

5^7 
2.2 

6.7 

3-1 

6.5 
29.6 

22.4 

29.0 
25.2 

23^5 
29.0 

255 

22.0 
0.4 

24.8 
0.4 

28.9 

25.8 

25.6 
29.3 

24.9 
27.2 

27.2 
21.7 
27.6 
29.0 
20.2 

23.7 
5.0 

5.0 
26.0 

2.2 

4.6 
28.8 

7.8 



I 



No. 



Barom. 



in. 



2 
II 



29.926 
30.210 



External 
Therm. 



65.7 
51,0 



Attached 
Therm. 




I. 



18 
26 
22 
18 

21 

28 

27 
22 

28 

'27 

23 

19 

19 
18 

25 

22 

19 
22 

18 

26 

31 
21 

21 
23 

20 
22 
21 
16 

19 

18 

28 
25 

22 

28 

27 

28 

26 
26 
23 

18 

17 

19 
22 

25 

26 

23 
28 



860 

352 
708 
060 



428 



670 
191 



310 
491 
920 
560 
880 

630 
090 
oSo 

320 



430 



130 



240 
960 
160 
129 
950 
770 



2. 



3^ 



950 
330 
698 
062 

188 
372 



4. 



575 
231 



337 



349 

511 
890 

650 

810 

705 
120 

010 

330 

465 

• • 

500 
no 

028 I 

285 
900 
050 

• • 

990 
790 

638 



676 



830 
320 

528 
908 



728 
640 



785 



225 

244 

435 
750 

550 

775 

640 
040 
970 

180 



725 



730 
970 

* • 

692 



828 

566 
893 



o o 

XL u 

.ti *- 

c o 



670 
680 



068 

249 
390 
795 
550 
810 

490 
980 

945 



14.0 
14.0 
14.0 
14.0 

15.0 

15.5 
15.5 
15.5 
15.5 
15.5 

15.5 
15.5 
15.5 
15.5 
15.5 

15*5 
15.5 
15.5 



330 

160 


270 

168 


390 

028 


• ■ 

915 


970 


• • 


180 


140 



790 

020 

135 

200 

645 



855 237 



1 

• • 

410 

• • 

• • 

• • 

340 

• • 

002 
408 
342 

385 

660 

270 

■ • 

• « 


1 
102 

• • 

400 

. . 
510 

• • 

995 

> • 

318 
459 

512 

145 
185 

• • 


• • 

• • 

• • 

• • 

• • 

• • 

• • 

850 

• • 

■ ■ 

• • 

• • 

253 

• • 


327 

• • 

450 
268 
132 
262 

550 

995 

* • 

360 
350 

430 

172 
. 153 

1 • • 


• • 

392 

• ■ 

310 
128 
298 
656 

928 

• • 

. 8 
380 

435 
022 

« • 

350 



220 15.5 



II. o 

10.9 
10.9 
10.9 
10.9 

10.9 
10.9 
10.7 
10.7 
10.7 
10.5 

12.5 
12.5 

12.5 
12.5 

12.5 
12.5 

12.0 
12.0 
12.0 

12.0 
II. 9 
II. 9 
II. 9 
II. 9 

II. 9 
II. 9 
II. 9 



Apparent 
Zenith Dis- 
tance, South. 



// 



E 

o 

£ 



Refraction. 



Apparent N. 
P. Distance. 



II 47 16.0 
307 49 25.0. 
350 20 21. I 

27 41 28.5 

40 10 39.1 
I 
39 M 48. 6| 
39 46 58.2 
310 18 16.9 
23 34 46.6 
23 35 2.3 



415 
415 
425 



306 



522 
510 

• ■ 

492 



// 



— I 



II. 7 

12.4 

9.6 

29.6 



I 



// 



62 53 48.9 

358 54 33.8 
41 26 32.7 

78 48 19.3 



S2 wi 

.- c 

c o 

o a; 

•— o 



+ 46.3 91 17 46. f> 



16 40 


7.6 


580 


6 43 


6.1 


• B 


10 33 


0.7 


■ • 


II 47 


15.5 


595 


307 49 


28.7 


• • 


296 14 


II. 6 


605 


31 59 


10. 


610 



4- 
-h 

+ 

+ 
4- 
-f 

— I 

— I 



350 20 21.9 
27 41 26.4 

! 

288 55 17.3! 
14 38 7.8 

292 o 38.7, 

26 16 39.61 

333 8 14.0. 



47-1 

48.0 ; 

I 7.7 
25.0 

25.0 



17.5 
6.9 

10.9 
12.2 

155 

58.8 

36.7 
10. o 



90 21 
90 54 



56.9 
7.4 



I 23 30.4 
74 41 32.8 
74 41 48.5 

67 46 46.3 
57 49 34.2 

61 39 32.8 

62 53 48.9 
358 54 34.4 

347 18 34.0 
83 6 7.9 
41 26 33.1 



- 2.2 

- 2.9 

- 2.3 

- 1.6 

- 5.7 

- 5.6 

- 5.7 

- 4-3 

- 3.2 

- 3.2 

- 1.3 

- 1.2 

- 1.5 

- 2.1 

- 1.9 

- 0.5 

- 0.9 

- 1.5 



-}- 30.9 78 48 18.5 '— 2.4 



630 



+ 



18 
28 
27 

37 
48 

307 



22 

54 

38 

55 

4 

31 



59- 1 
"3 
43.3 
53.0 

54.8 
18.5 



38 50 49.4 

39 23 24.7 



640 

• • 

650 
660 
660 
670 

626 
626 



■f 



2 51.0 

15-4 
2 25.6 

29.3 
30.0 



19.7 
32.8 

31.2 
46.4 

6.3 
17.6 



+ v47-6 
-I- 48.5 



339 58 47.5 
65 44 44.4 

343 4 34. 3 
77.23 30.1 
24 14 5.2 

69 29 40.0 
Bo I 5.3 

78 45 35.7 
89 3 0.6 

99 12 22.3 

358 36 22.1 

89 57 58.2 

90 30 34.4 



4- 2.3 



-1- 



0.2 
0.2 
0.9 

0.8 
0.8 
1.0 
3.8 
3.3 
3.1 



- 5.6 

- 5.6 



310 18 27.8 . . — I 9.2 
23 8 49.8. 584 -I- 25.0 



I 23 39.8 J4- 4.9 , 
74 15 3^>o I— 3-2 



23 9 4.7 
35 18 55.7 . 

15 21 22.7 
67 39 18. 8| 645 

16 40 8.7 



307 49 34.0 
18 42 4.8 

18 39 0.7 

350 20 22.5! 

27 41 28.4 



165 29 16. 3I 
292 041.8 680 
26 16 39.4 



1 + 
i + 



25.0 

41.5 
16.3 

23.4 

17.8 



- 3-2 

- 1.4 

- 0.1 

- 1.4 

4- 0.1 



— I 16.6 
4- 20.2 
-f 20.2 

— 19. 1 

+ 313 

— 15.5 

— 2 27.1 

+ 29.6 



74 15 50.9 
86 25 58.4 

66 28 0.2 
118 48 3.4 

67 46 47.7 

358 54 38.6 
69 48 46.2 
f»9 45 42.0 
41 26 33.6 
78 48 20.9 



65 37 20.4 -f- 1.7 

343 4 35-9 + 2.0 

77 23 30.2 — 0.2 



+ 2. 


4 


+ 14 


9 


-fi5 


2 


— 


9 


4- 


I 



MOON': 



No. 



Parallax. 



For summary of the elements of reduction see poi^e 3. 



Semi-diam. 



// 



// 



3 



18 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
Mar. 19 



Si 

B 



I 
2 



23 



24 



30 



31 



I 



5 
6 

7 

8 

9 

I 

10 
II 

I ^^ 
I '3 
I 14 

' 15 
16 

17 
18 

19 
20 

21 
22 

23 
24 

25 

26 

27 

28 

29 
30 
31 

32 
33 
34 
35 
36 
37 

38 

39 
40 

41 
42 

43 

44 

45 
46 

47 

48 
49 



OBJECT. 



Anonymous . 
/ Draconis, (R.) . 
'6 Virginis 

Polaris, S. P. . 



Sun I, N. . 
Sun II, S. . . . 
Ursse Min., S. P. . 
Hydrae . . . . 
Ursae Majoris . 



/ 
e 
I 



K Cancri .... 
a Hydrje . * . . 

p Leonis .... 
226 Cephei, S. P. . 
/ Leonis .... 
/Vsia .... 
o Cephei, S. P. . 

T Leonis .... 
V^irginia 

3 Leonis .... 
y Ursjc Majoris . 

a Hydrse, (R.) . . 
32 Ursse Majoris . 
p Leonis .... 
226 Cephei, S. P. . 
n Vtstc Majoris . 

6 Leonis .... 

6 Crateris 

/' Draconis, (R.) . 

t' Leonis .... 

y Ursae Majoris, (R.) 

o Virginis 

4 (H) Draconis . 

lo 

Hestia .... 
a Canum Venat. 

Polaris, S. P. . 
a Virginis 



Sun I, S. . 
Sun II, N. . 

Polaris . 

a Persei . 

Venus I, S. 
Venus N. . 
Moon I, N. 
Anonymous 
o* Geminorum 

o2 Geminorum 
a Canis Minoris 



• 




w 




a 


• 


t 




a 


(« 


tfi 




Xi 








^ 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



I. II. ! III. IV. V. VI. VII. VIII IX. Mean wire. Inst. 



Clock 
appar'nt. 



i Clock 
ladopted. 



Apparent R. 
Ascension. 



c z 






E. 
E. 
E. 



A. 

A. 

H. 

I H. 

I H. 

H. ' 

' H. : 

I 

A.' 
A.I 
A I 

a!! 

A. 

A. 
A. 
A. 
A. 



m. 



s. 



s. 



s. 



h. m. s. 



3 
4 
4 

4 

4 

3 

3 



39. 142. 043. 549-551. 553. 459. 5 1.2 3-9 

. . j . . I . . 12. 050. 031. Oi 

1 I 

47-550.251.857.7 o.i 2.0 8.0 9.512.2 

. . . . 8.8 10.8 12. 916. 918. 621. 9 

. . 17.025.045.055.010.0 . . . . 

18. 1 20.822.028.430.432.538.740.342.9 

34.438.340.749.953.1 56.1 5.1 7.4 "5 



6.7 



9. 4 1 1, o 17. 219. 3 21. 4 27. 4 29. 031. 5 



4 
4 



'37.239.941.447-850.052.058.059.6 2.2 

I ■ 

22. 5 25. r26. 7 32. 9 34. 9 37. 1 43. 3 44. 8 47. 4 
55.145.^39.252.244.2 . . . . I . . . . 
50.152.6,54.3 0.4 2.6 4.710.912.515.2 
4.oi . . ' 6.7 12.3 . . . . ' . . I . . 28. 7 
25.5 19. 014. 8 59. 2 53. 4 48. 032. 128. 3 21. 5' 

. . 48.450.552.554.656.6; . . . . 

50.353.054.6 i.o 3.0 5.1 II. 412. 915. 4 
15. 019. 5 22. 032. 3 36. 039. 5 50. 2 52. 8 57. 1 



2 51.50+ 0.21 +16.79 

9 51.00 4- 5.00 

10 59.89 — o.io 

13 8.79— O.IO . . 

55 42.00 — 4.06 

39 30.48— 0.09 + 17.62 

49 52.94 — 0.02 

o 19.20— 0.08 +17.60 

20 49.79- 0.12 +17.57 

25 34.97- 0.13 +17.97 

2g 36.31 — 0.56 . . 

42 2.59— 0.13 -I-17.88 

57 16.37 — 0.16 

12 53-53— 0.38 . . 

20 52.52— 0.15 +17.98 

29 41.50— 0.15 

42 2.97 — 0.12 +18.02 

46 36.05 -I- 0.04 



' + 16.69 


"3 


3 


8 


.40- 





13 


,4-16.69 

1 


I 


10 


12 


.(>8 -r 


3 


54 


+ 17.53 





II 


^7 


.32 


, 


, 


-^-17. 53 





13 


26 


.22 


. 




-+-17.59 


19 


55 


55 


93^ 





y) 


+ 17.60 


8 


39 47 


90- 





<f2 


-I-I7.f)0 


& 


50 


10 


52 + 





01 


-f 17.60 


9 





36. 


72 


0. 


00 


4-17.60 


9 


21 


7. 


27- 


0. 


^>5 


+ 17.95 


10 


25 


52. 


79- 


0. 


(•/. 


I + 17.95 


22 


29 


53. 


70- 


0. 


5f: 


i 4-17. 96 


10 


42 


20. 


42 + 


0. 


15 


+ 17.96 


10 


57 


34- 


17 






+ 17-96 

1 


23 


13 


II. 


II — 


0. 


i: 


4-17.96 


II 


21 


10. 


33- 


0. 


<>i 


4-17.96 


II 


29 59- 


31 






+ 17.97 


II 


42 


20. 


82- 


0. 


^4 


+ 17.97 


II 


46 


54- 


06- 


0. 


10 



33-8 



. . 56.8 1.9 6.6 II. 8 16.7 . 



8 6.76 4- o.io' 



+ 19.78 



10 8 26.54 - o.oii 



6. 611. 1 15. 619. 724. 433. 1 36.442.0 55 15.484- 0.04 



36.5 



14. 3:17.0 



41.2 
13.7 



38.1 
18.5 

2.3 
44.045.2 
17.920.2 

6.9 



44.747.049. 

24.726.829. 

8.4I14.320U 

51. 453. 555- 

30.934.537. 
8.9 II. 013. 



155.757.3 0.1 

035.236.939.3 
326.4 . . . . 

5 1-7 3.1 5-7 

848.351-155.4 
I 15.2 . . . . 




. . 21.932.442.352. 
56.6 59.61 I.I 7.2 9.1 II. 
8.1 . . 17.3 19. 1 . . 26. 
17. 1 20.322.530.5,33.235. 

. . 45.519.0,55.035- 
44. 4I46. 9 48. 4 54. 7 56. 7 58. 



3 2.5 

2 17.3 19.021. 7 

029.530.733.6 

543-445.348.7 
8 5.2 6.7 9.3 



59.6 
12.0 



6 
12 

23 

29 
46 

58 

5 
27 
39 
49 

9 
17 



+ 19.79 



46.92;— 0.31 -f- 19. go 4-19.79 
26.86— 0.504-19.78 I4-19.79 



14.34+ 0.451 

53.48 — 0.42 

34.42 4- 0.09 

11.02 — 0.37 



+ 19-83 
+ 19-85 



5.1 7.111.1 12. 715. 1 40 



2.1 3.5 9.7 12. 014. Oi20. 1 21.524.3 



0.0 5.0 



. . ' . . 52.016.038.0 



. . 14.5 16.0 1.5 
1. 024. 01 



1 5. 1 19. 020. 5 30. 8 34. 037. 1 46. 4 48. 8 52. 9 



42.28 4- 0.62 

9.20— 0.46 

21.21 — 0.44 

32.94 — 0.21 4-19.68 

56.65J— 8.22 

56.79— 0.4S 4-19.85 



2.97 — 0.31 
11.87 — 0.31 



p. 3 



42 

9 38.28 4- 9.24 
14 33.84— 0.02 



12. 013. 720. 1 22.424.4131.1^32.735.5 22 22.36— 0.23 



5.5; 7.311.6,13.816.218.320.425.126.7 13 

19 



7.1 9.3 II. 6 13.7 16.0 . . 
136.139.241.0 . . . . ' . . 0.3 2.1 5.1 



52.0 



. . 46.1 
54.456.0 



26 



26 



48.551.053.5,55.8, . . 
2.1 4.1 6.1 12.3 14. 016. 6; 32 



16.10 

11.54 
50.63 

50.98 
4.18 



0.24 
0.46 
o. 16 



-h20.04 

4-20.04 
4-20.04 



— o. 164-19. 99 4-20.04 

— 0.31 4- 20. 1 1 |-i-20.04 



+ 19.79 

+ 19.79 
4-19.80 

4-19.80 

-H19.80 
4-19.80 
4-19. 81 
-h 19.81 
-+-19.82 
4-19.82 

+ 19.96 
+ 19.96 

+ 19.97 
+ 19.99 

4-19.99 



10 55 35.31 + 0.05 

11 7 6.40— 0.03 
II 12 46.15 -h o.oi 
II 23 34. 5S 4- 0.1.) 
II 30 12.85 — 0.05 
II 46 54.31 -h O.K. 

11 58 30.45 — o. ri 

12 6 2.70— 0.14 
12 23 8.54 . . 
12 39 40.58 . . 

12 49 52.54+ 0.14 

I 10 8.254- 0.Q2 

13 iS 16.13I— 0.02 

o 40 22.62' 

42 31.52 . . 

1 10 7,49+0.20 
3 14 53.81 - 0.05 

3 22 42.12 4 0.61 



7 13 35-90+71-16 
7 19 31.124- 4 69 
7 26 10.51 — 0.10 

7 26 10. 86 4- 0.25: 
7 32 23.91 - 0.09 



1.4. 15. 18. Wire A used. 

16. Seems ten revs, wrong. 
33.34. Wire A used. 

34. R. A. observed over wires Bj, Ci, Cr„ and D. 
38. R. A. observed over wires C4, Cs, and D. 



0B8BBVAT10NS WITH THE TRANSIT CIBCLE. 



19 



I 



I 
2 

3 

4 

5 
6 

9 

lo 
II 



M 

IS 
Id 

17 

iS 

19 

20 

21 
22 
23 

24 

25 

26 

27 

2S 

2g 
30 
31 

32 
33 
34 
35 
3(J 
37 



39 
40 

41 
42 

43 
44 
45 
46 
47 

4B 
49 



S 

21 



MICROSCOPE MICROMS. 



1^ Circle 

5 Division. 

9 



TELESCOPE MICROMETER. 



II. ' III. IV. 



r. 



I 



37 56 



10.3 
. I 10 9.0 

43 40 11.4 
307 26 , 10 1.2 



10.6 

"5 

7.5 
0.3 



37 46 

307 46 

31 54 
350 16 

27 36 
46 54 



9 18.0 

9 19- 5 
'9 20.6 

'9 23.2 

'9 24.2 
9 25.0 



12 28 50 ,?io 9.5 



27 34 10 8.0 

37 16 9 28.7 

2S6 16 ' 2.5 



35 22 
23 30 



132 58 

333 4 
28 50 

2()4 24 

336 22 



9 
10 



1.2 

8.1 



2.3 
5.7 
I.I 
26.5 
0.5 



5.3 
26.6 

I.I 



i.o 

5.5 



0.5 
2.9 

27.8 

24.3 
26.8 



17 34 10 5.8 2.6 



52 52 
211 6 

38 56 
195 28 

29 22 

320 30 
46 20 
42 26 

359 48 

397 28 

49 18 

34 38 
34 6 



9.2 
0.9 
6.0 
0.9 

5.7 

2.9 

2.7 

5.5 

2.3 
10. o 

3.1 



i 



\ 



,-310 14 



10 
10 

5 9 



349 26 

18 26 
iS 26 
20 22 



4.9 
4.9 

17.9 

t 9 15.8 

10 3.4 



10 
10 
10 



1.5 
1.5 
5.3 



7.0 
1.9 

2.7 
1.2 

2.3 

0.2 
0.4 
2.1 

29.5 
8.6 

0.2 

I.I 

0.7 

?I5.I 

?M.3 
0.7 

29.5 

29.5 

2.0 



Rev. 



I. 



2. 



ft 




10. 





10. 


9 


7. 


5 


2. 


2 



1 

, 14.0 


16.0 


1 

1 16.0 


17.9 


20.0 


20.3 


18.9 


18.4 


18.3 


20.3 


21.9 


21.6 


21.4 


21.8 


22.4 


22.5 


22.1 


23.2 


7.1 

1 


6.8 


8.6 



It 




I 

1 


8.2 


24 


850 


7.3 


25 


957 


9-7 


27 


. . 1 


0.8 


28 


430 



5.0 

26.9 

2.9 



28.0 

5-5 



0.4 

5.5 

29- 3 
27.9 

29.7 

3.6 
6.6 

3.7 
3.7 
3.0 

3.1 

3.9 
1.7 
3.0 
1.2 
10.7 
1.2 

1.0 

2.3 
17.2 

16.2 
3.0 

0.0 
0.0 
1.9 



7.0 

27.4 

4.0 



0.4 
6.5 



29.6 

6.3 
0.8 

29.1 

29.9 

4-9 

7.9 
1.9 

5.1 
0.7 

5.0 

4.7 
3.0 

4.5 
1.6 

10.7 

1.9 

4.0 

5.9 
18.5 

15.7 
3.1 

0.7 
0.7 

3.7 



33 i(* 



4.1 



2.0 



1.0 



2.1 



No. Barom. 



External Attached 
Therm. Therm. 



in. 

29.774 
30.144 



55.4 
43-3 



66.0 
74.0 



938 
890 
410 



18 
23 



20 
28 
22 



28 
20 



24 
22 

23 
12 

22 

20 
21 
26 

28 

24 
26 

25 
22 

21 

24 

25 

28 

26 
26 

23 
21 

28 
29 
22 



I 



22 i . . , . . 

26 530 I 582 

19 I 630 708 

22 I 975 I 895 



388 
430 



422 

430 



23 ? 476 470 



549 



550 



730 
349 



685 



005 



875 

645 
180 



523 
586 



730 
326 



692 
050 
102 



880 
620 
165 



770 750 

. . 735 

. . I 736 

344 ' 3" 

. . , 905 

158 I 116 



440 
800 
411 



039 
450 

730 
265 



25 . 148 182 



3. 



4. 



380 



792 
740 



648 



421 
033 
563 



180 



087 
6S0 



209 



145 
640 

950 



768 

485 
no 



410 

550 
405 



8c;o 



710 
650 
810 
250 

905 
002 



163 258 
. . 410 



990 
446 



161 



662 
090 



5. 



.S c 

o o 

•s ^ 



672 



11.9 
II. 8 
II. 8 
II. 8 



361 
023 
440 



II. I 
II. I 
II. I 



f 



. . II. I 

213 I II. I 



630 



761 
470 
140 



525 382 



739 

■ • 

• • 

216 

• • 

99^) 

• • 

243 
040 

450 



750 
156 



II. 7 
II. 7 
II. 7 

11. 7 

11. 8 

II. 8 
II. 8 

11. 8 

11. 9 
II. 9 
12.0 

12.0 
12.0 
12. 1 

12. 1 
12.2 
12.2 

11. 2 
II. 2 

II. 2 

II. I 

II. I 
II. I 
10. o 



099 955 



10. o 



Apparent 
Zenith Dis- 
tance, South. 



192 
668 


135 
620 


12.0 
II. 


572 
710 


545 
704 


II. 
II. 


277 

285 


332 
300 


II. 
II. 


310 


352 


II. I 



37 57 5.6 
211 9 16. I 

43 42 48.2 
307 31 20.9 



37 48 37.1 
307 49 25.1 

31 59 12.6 
350 20 21.4 

27 41 28.4 
46 58 II. I 

28 54 I I. 2 

27 38 42.4 

37 21 28.2 

286 22 47.3 



35 27 17.0 
23 34 45.3 



133 I 51.9 

333 8 10.7 

28 54 10.9 
294 28 28.1 
336 26 16.3 

17 38 39-9 
52 56 24.9 

211 9 20.3 

38 58 43.6 

195 31 45.4 

29 25 14.8 

320 33 26.4 

46 26 47.7 

42 33 0.0 

359 51 50.7 
307 31 16.7 

49 20 51.9 

34 41 18. I 
34 9 16. I 

310 18 23.6 
349 30 30.7 

18 28 42.2 
18 28 26.6 
20 26 17.6 



33 19 34.6 



S 

8 . 

aS Refraction. 






700 



470 
480 

485 



490 
490 



602 



618 



621 



46.8 
36.3 

57.4 
I 18.2 



-f 
— I 









:+ 



44.2 

13.5 
35.7 

9-7 
30.0 

I. -2 
32.4 



30.8 

44-9 
3 18.6 



634 

643 !- 



— I 



650 
653 

660 

663 



4- 
-f- 



-h I 






525 |4 
450 



— I 



42.0 

25.8 



3.4 
30.0 

32.8 

9-7 
25.9 

18.9 
18.6 

35.9 
48.1 

16.6 

33.6 

49.0 
2.6 

54.7 
0.1 

17.5 
9-3 

39.9 
39.1 

6.8 



418 

458 



— 10.4 



4- 
-I- 



18.8 
18.8 
21.2 



468 



+ 37.4 



Apparent N. 
P. Distance. 





• 

c 


C 





a 


••* 


"^ 


u 





9 


^ 




■«9 





SU 



89 4 136 

20 56 28.8 

94 50 6.8 

358 36 23.9 



1.8 
1.0 
I.I 



88 55 42.5 - 5.4 

358 54 32.8 - 2.6 

83 6 9.5 + 0.8 

41 26 32.9 — 1.0 

78 48 19.6 — I.I 

98 5 33-5 + 1.7 



80 



4.8 



78 45 34.4 
88 28 34.3 
67 25 49.9 



86 34 20.2 
74 41 32.3 



98 5 32.7 
24 14 1.9 

80 I 4.9 

345 32 39-6 
27 32 I I. 6 

68 45 20.0 
104 4 4.7 

19 56 25.0 

90 5 52.9 
35 34 19- 2 
80 32 9.6 

II 38 58.6 
97 34 11.5 
93 40 15.9 
50 58 I I. 8 
358 36 20.4 
100 28 22.4 

85 48 19.2 
85 16 16.4 

I 23 38.0 
40 36 41 ■ 5 

69 35 22.2 
69 35 6.6 
71 33 o.o 



— I.I 

-- 2.0 

- 3.1 



84 26 33.2 



— 2.1 

- 0.7 



+ 0.5 

- 1.2 

- 0.7 
+ 1.0 

- 2.2 

- 1.0 

- 1.3 

- 2.3 

- 0.6 

- 0.8 

- 1.6 

- 3.1 

- 3-3 

- 3-1 
4- 0.2 

- I.o 

- 0.8 

- 5.0 

- 5.0 

- 0.7 

- 1.2 

- 2.8 

- 2.8 



- 1.6 



MOONS— 



No. 



J'or summary of the elements of reduction see page 3. 



Parallax. 



45 



— 20 29.1 



Semi-diam. 



-h 16 10.4 



i 



20 



OBSERVATIONS WITH THE TBAK8IT CIRCLE. 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



DATE. 



iS68. 
Mar. 31 



Apr. I 



B 

3 



I 
2 

3 

4 
5 

6 

7 

S 

9 
10 

II 

12 

13 

14 

15 
16 

17 

18 

20 

21 
22 

23 
24 
25 

26 

27 

28 

29 
30 
31 
32 

33 
34 

35 
36 

37 

38 

39 
40 

41 
42 

43 

44 

45 
46 

47 

48 



OBJECT. 



/ Ursac Minoris, S 
lo . . . 
Hdlona 
Anonymous 
Nysa 

Polaris, S. P. 
a Virgin is 



Sun I 

Sun II, S. . 
a Pcrsci . 
> UrsjE Minoris, S.P. 

Moon I, N. 

I Hydrx . 

I Urssc Majoris 

K Cancri . 

a Ceplici, S. P. 

u Hydrjc . 

p Leonis . 
/ Lcoriis . 
« Ursa; Majoris 



t 
1/9 

o 



P. A. 

. A. 

. A. 

. A. 

. A. 

A. 
. A. 

. H. 
. H. 

H. 

H. 

H. 

H. 
H. 
H. 
H. 

n. 

H. 
II. 
H. 






I. II. III.: IV. V. 



VI. VII. VIII IX. Mean wire. Inst. 



Clock 
appar'nt. 



Clock 
adopted. 



Apparent R. 
Ascension. 



tr 






4 
4 
4 



2 
2 



. . . . 27.041.054.0. 6.518.5 . . . . 

9.012.1 13. 6JI9. 722. 024. 230. 532. 034. 2 

I 7.710.6 12. 1 18.1 20.222.228.629.932.3 

57.159.8 1.2 7.5 9.7II.7I7.7I9.2'22.2 

29.7 32.4 33.9 39-94I.744049-8 51.5 54-1 

! I 

I 

. . . . 46.0^20.5 58. 032. oil. 5 . . . . 
44.046.548.2:54.456.658.7! 4.8 6.3 8.9: 



m. s. , 

55 53.00 
22 21.92 

45 20.19 

46 9.57 
X 41.89 



s. 
12.49I 

0.37 
0.30 
0.30 
0.34 



27 
36 

15 
38 
52 

15 
31 

• 

31 

35 

20 

47 

48 



.930.1 
.638.9 
.0 18.6 
.024.0 

.854.3 

I 

.618.2 

•835.5 
. 12.6 

.426.1 
.037.7 

.322.9 
.950.5 
.253.9 



31.737. 
40.644. 

20.230. 

50 

58.9 



19.7 



940.1,42.0 .... . . 

8 . . 153.057.058.6 1.2 
533.536.746.248.752.6 
39.029.0- . . 
5.5 7.7:11.813.7 



I.I 3.4 



26. 



9 57.26— 9.80 
17 56.49— 0.39,4-20.07 



43 3998 
45 48.84 

14 33.56 
55 55.12 

15 324: 



37-947. 
14.5 16. 

22.9 9. 
39.2^45. 

24.4,30. 
52.058. 
57.1 10. 



028.030.036.237.640.2 
250.253.1! 2.4, 4.7I 8.7 
618.720.825.1,26.529.1 
5 5.i| 0.748.044.839.2 
247. 349. 355. 357. 359-6 



832.7 

2| 0.2 
314.7 



34 

2 

»9 



.941.042. 
.3, 8.610. 

.132.335. 



Prcssepc 

f Hydrae .... A. 

(T^ Vtssc Majoris . . A. 

a Cephci, S. P. . A. 

a Hydrx .... A. 

C Pcgasi . . . , ^. 

u F'cgasi . . . . ! N. 

Mercury, (center) . N. 

Sun I, N. . . . N. 

Sun II, S. . . . N. 

Polaris . . . . , N. 

a Ceti . . . . N. 

Venus I, S. . . ' N. 

Venus, N. . . . N. 

I 

« Aquarii . . I N. 

^ Pegasi . . . . N. 

Mercur>', (center) . N. 

Sun I, N. . N. 

Sun 11, S. . . . N. 

Venus I, S. . . N. 

Venus II, N. . . N. 

ft Leonis .... N. 

79 Draconis, S. P. . N. 

a Leonis, (Ref.) . . N. 

P Leonis . . . . N. 

/ Leonis . . . . N. 

^^ I 

a Pegasi . . . . ' N. 

Mercury ll,(centcr) Nr 



645.3 
312.S 

841. 2 



39 27.94 

49 50.17 
o 16.66 

15 5.30 
20 47.34 

25 32.77 
42 0.31 

55 14.73 



0.38! 
0.38 
o.o6i 
10.29 
0.23 

0.27 

■ 0.06 
0.25 
0.62 
0.33 

' 0.26 

■ 0.26 
0.09 



-1-20. 21 

■ • 

+20.90 

4-20. II 

+20.24 
+20.24 



s. 
+20.04 
+20.09 
+20.10 
+20.10 
+20.10 

+20.10 

, + 30.I0 

+ 20.12 
+ 20.12 
+ 20.14 

:+2o.i8 
1+20.19 

+ 20.19 
+20.19 
+20.19 
+20.20 
+20.20 

+20.21 
+20.21 
+20.21 



h. m. s. 

19 55 0.55 
12 22 41.64 

12 45 39.99 

12 46 29.37 

13 2 1-65 

I 10 7.56 
13 18 16.20 



s. 

3-43 



0.34 
0.04 



I 43 59-72 

1 46 8.58 . . 

3 14 53.64— 0.21 

19 56 5.01 + 0.08 

8 15 23.20 + 70. S3 

8 39 47.86— 0.02 

8 50 10.30— o.oi 

9 o 36.60— 0.01 
21 15 24.88 — o.o^ 

9 21 7.21 + 0.09 

10 25 52.72 — 0.07 
10 42 20.26+ 0.04 
xo 55 35.03- 0.19 



4 
4 
4 
3 

2.1 

3 
2 

3.2 
I 

3 
3 
3 

3 
3 



2 
I 
2 

2 



n 

2 

2 



15 
52 
30 

34 

21 

37 
I 

I 
j23 

!32 



.1 17.619.225.5127.4 
•459.3 3.2^19.224.8 

.925. 752. 5i 9.3 5.0 

.437.038.6.44.546.6 



.223.8 

.439.9 
.7 4.1 

I 

.726.5 

.835.5 



25.3 . 
41.547. 
5. 811. 

28.034. 
37.043. 



29.535.637. 
30.146.550. 

0.347.444. 
48.755.056. 



133.6 . . 41.943. 

950.052.1I58.4. o. 

9I4.0l6.0{22.223. 



. . 26. 1 29. 

41.744.446.052, 



1 36.1 
145.2 

> I a • 

I 30.1 

554.8 



26.529.230.636. 
18.921.322.929. 

55.358.059.6; 5. 

I 
41. 143. 945. 551. 

50.452.854.6 o. 

03 3.0; 4.6 . . 

. . |IO.OI2. 

41.344.2:45.852. 



838 
231 

7, 7 

6' . 

8 2 



38 

47 

4 

31 

57 



.144.346. 

.253.455. 
.029.020. 

.222.1 
.0 3.7 5. 



2 39- 7 

457.1 
038.6 

559.IJ 

546.2! 
o 2.5 
826.5' 

048.4 
157.6 

o . . 

. 38.3 

3. 8.1 



39 27.42 

58 24.78 

15 4.86 
20 46.71 

I 

34 33.64 

57 49.97 

16 14.00 



0.28J + 20.71 

^il ■ • 

0.33 +20.71 

0.21 +20.65 
0.20 +20.75 
0.26 



54 36.13— 0.22 
56 45.21 — 0.22 

9 42.40+ 4.70 

55 1.53- 0.23 
40 54.83— 0.18 



3 
2 



48. 1 50.652. 
19.422.023. 
46.8,49.4 50. 

36.839.440. 
23.526.127. 



958. 
158. 
529. 

957. 

947. 

533. 



14 

54. 9:57. 2 



I 
6 

8 

3 

6.31 

159 

2,49 
735 



940.846.948.451.0' 

233.1 39. 441. 1 43.6 
.8.10.016.1 17. 720. 1 

I i 

. 55.8 1.8 3.436.0 
.8, 4.8JII.1 12. 615.0 
. I . . 122.424.026.8 
.316.418.9 



58 38.79 

34 31.19 
24 7.81 



I 

4 



4.i| 5.7 8.7 



51.9 



.8 
.2 

.4 
.7 



44.637.7 . . . . 

I 
• • •• •• •• 

33.740.141.544.0 
1.2 7.6 9.1 II. 7 



5i.6;57.9 
37.8144.0 



59.5| 1.9 
45.5148.0 



53.64 
2.77 

50 13.52 

50 14.34 

44 54.94 

50 51.78 
I' 0.50 

25 31.75 
41 59.22 

57 49.40 
32 35.75 



0.37 
0.32 

0.40 

0.33 

0.33 
0.25 

0.25 

0.23 

0.93 
0.24 
0.32 
0.31 

0.35 
0.48 



+ 20.78 



+20.71 8 39 47.85 0.00 

+ 20.71 8 58 45.54— 0.05 

+ 20.71 21 15 25.15+ o.io 

+ 20.71 ■ q 20 7.00, 0.00 

+ 20.72 22 34 52.15+ O.II' 

+ 20.72 22 58 10.49— 0.02 

+ 20.72 23 16 34.46— 0.10 

4-20.73 o 54 56.64 . . 

+20.74 o 57 5.73 

+ 20.74 I 10 7.84+ i.io' 

+ 20.74 ' 2 55 22.04— 0.02 

+ 20.77 3 41 15.42 + 0.64 



+ 21.22 

+ 21.26 



• • 



• • 



+ 21.34 



+ 21.28 
+ 21.34 

4-21.53 



+ 21.23 
+ 21.24 

+ 21.24 

+21.25 

; + 2i.25 

I + 21. 28 
+ 21.28 
+ 21.32 

+ 21.32 
+ 21.33 
+ 21.33 
+ 21.33 

+ 21.53 
+ 21.53 



21 58 59.65 0.00 

22 34 52.11 + 0.02' 

23 24 28.65 — O.IO 

1 2 14.56 

1 4 23.69 . . 

3 50 34.55; . • 

3 50 35.37I . . 

9 45 16.03 + 0.03; 

21 51 12.17 — 0.12 

10 I 21.59 + 0.12 

10 25 52.76 + 0.01 1 

10 42 20.24,+ o.o6i 

22 58 10.58 + O.OI, 

23 32 56.80— 0.24 



2.3.5.6.21. Wire A used. 

8. R. A. observed over wires B, C2, C3, C4. 

9. R. A. observed over wires B, Ci, Ca, and D. 

31. R. A. observed over wires C4, Cs. and Dj. Give weight 3 to Di. 

32. R. A. observed over set E and VII. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



21 



O 

E 

3 



I 

2 

3 
4 

5 

6 
7 

8 
9 

10 

II 

12 

13 

14 

i& 
i6 

17 

iS 

20 

21 
22 

23 

24 

25 

26 

27 

28 

29 

30 

31 
32 

33 
34 

35 
36 

37 

38 

39 
40 

41 
42 

43 
44 
45 
46 

47 

48 



Circle 
Division. 



MICROSCOPE MICROMS. 



TELESCOPE MICROMETER. 



I. 



6 
26 

35 
47 



II. 



III. IV. Rev. 



r. 



// 



307 46 
46 14 
31 58 

39 >2 

307 28 
49 18 



34 14 

349 26 

307 46 
22 o^ 

31 54 

350 16 

27 36 
2S0 56 

46 54 " 

28 50 

27 34 
336 22 

18 36 
31 54 



10 0.9 

7.1 
10 0.0 

7.0 

9 28.0 
9 29.0 



10 5.0 
9 28.7 

9 24.4 

8 27.8 

9 27.6 
9 28.0 

26.7 

24.0 

9 26.4 

9 28.8 

9 28.5 

26.4 



10 



i.o 
7.1 



331 10 ; 10 28.0 



28 42 
24 20 

45 28 

32 36 

33 8 



17 

17 



6 
6 



9.6 
2.9 

3.8 

2.1 
3.9 



39 48 
28 42 



31 48 

32 20 
16 30 
16 30 
12 12 

291 56 

153 40 
28 50 

27 34 

24 20 

44 12 



9 
10 



10 



10 



5.3 
5.3 

3.5 
9.4 



29.0 

0.5 
3.5 
3.5 
3.0 

o.i 
0.0 
2.6 
3.0 

2.2 
4.2 



I. 



2. 



3. 



4. 



It 


It 


II 




29.3 
5.2 

27.0 


0.0 

4.9 
26.0 


2.2 
6.6 

29. 3 


25 
32 

34 


4.0 


4.0 


5.6 


33 


26.0 

25.5 


27.9 
26.2 


29.8 
27.5 


28 


3.0 

24.0 
23.0 

24.1 


2.1 
26.1 
23.9 
24.4 


4.2 
26.9 

23.5 
24.5 


22 
21 
26 

28 


25.2 
25.0 

24.5 

23.1 

24.4 


234 
25.4 
235 
23.5 
23.7 


24.4 

25.7 

23.7 
23.0 

24.5 


19 
22 

18 

24 

23 


25.4 

25.8 
23.6 


25.5 
25.5 
24.5 


26.5 
26.2 
23.8 


23 
21 

22 


28.0 

5-0 
25.1 


28.5 

4.1 

27.8 


29.1 

5.2 
25.0 


34 
28 

21 


6.2 

29.5 
1.5 


6.5 
0.4 

1.7 


7.6 

1.7 

2.8 


28 

25 
27 


0.4 
1.0 

• • 


29.9 
I.I 

■ • 


2.0 
2.5 

• • 


33 
33 

■ 


1.6 
1.6 


2.5 

2.5 


4.3 
4.3 


23 
24 


2.1 
6.3 


2.5 
7.2 


3.2 
8.2 


29 

28 


26.1 

28.1 

0.2 

0.2 

1.9 


26.1 

29.6 

1.5 

1.5 
3.0 


29.5 
0.5 
4.1 
4.1 
3.1 


23 
23 

24 
25 
24 


29.8 
28.8 
29.2 
29.9 


2.7 

.29.5 
0.1 

0.8 


2.9 
27.9 

2.0 

2.1 


21 
26 

23 
20 


28.0 
0.5 


0.1 
2.1 


2.6 
5.0 


25 
28 



250 



955 
142 

090 

625 



250 

031 
025 
991 

891 
791 

851 



no 



485 



360 



405 
422 

085 
381 

• • 

"5 

435 



824 
360 

044 

635 ! 

706 
214 



860 



719 



830 



010 

170 
520 



241 

102 
970 

898 

839 
801 

813 



080 



518 



535 

828 
871 



314 



785 



846 
362 
070 

760 

710 
056 



498 

775 
M5 
561 

998 
421 

002 

718 
078 

961 



520 
060 

356 
440 
022 



509 
409 



000 

910 
761 

759 



553 
250 

020 



596 



390 

722 

765 



429 



498 
928 



897 



955 



391 
235 



R. 

5. 


Zenith Point 
Correction. 




tt 


864 


lO.O 


• * 


10. 


■ • 


10. 


• • 


10. 


■ • 


10. 


025 


10.0 


460 


9.8 


700 


9.8 


125 


9.8 


490 


9.8 



Apparent 
Zenith Dis- 
tance, South. 



a 

•|«' Refraction. 4^??:?"'^ 
9-« I I P. Distance. 

E I 

CO I 



3 



// 



// 



307 49 24.6 
46 18 13.7 
32 I 55.7 



488 '— I 13.6 

588 4- I 1.3 

589 -h 36.6 



39 15 54.1 590 + 47.9 



060 

364 
968 

665 
092 

009 

099 

790 

745 
761 



558 
122 

955 



579 



250 



500 
350 

• • 

900 



780 
946 



250 



9.8 
9.8 
9.8 
9.8 
9.8 

9.8 
9.8 
9.8 

10.6 
10.6 
10.6 



I 



I 



II. 9 
II. 9 
II. 9 

II. 9 
II. 9 



307 31 15. 1 
49 20 53.2 



34 18 12.5 

349 30 31.0 
307 49 26.9 

22 4 30.2 

31 59 13.4 

350 20 21.2 

27 41 29.6! 
280 59 49.5! 

46 58 II. 3 

28 54 I I. 8 

27 38 43.9 
336 26 15.2 

18 39 42.3 

31 59 10. o 

331 14 2.7 



28 44 37.4 
24 23 35.4 
45 31 6.5 

32 37 29. 5I 

33 9 26.0. 



590 



— I 16.2 
-h I 8.2 



II. 9 17 10 3.0 

II. 9 17 9451 

12.7 39 50 25.1 

12.7 28 44 34.8 



12.7 31 52 9.1 

12.7 32 24 4.3 

12.7 16 33 48.4 

12.7 16 33 31.2 

12. 7 12 15 53.9 

12.7 I 292 o 35.2, 

12.7 I 153 43 20.8 

12.7 I 28 54 10.6 

12.7 I 27 38 42.2 

I 

12.7 24 23 33.5 

12.7 . 44 14 47.0 



No. Barom. 



in. 
29.870 
29.836 
30.310 
29.766 



External 
Therm. 


Attached 
Therm. 


Cl 


u 


65.8 

46.0 

38.5 
45.0 


68.0 
64.2 
68.2 
66.0 


1 

1 

1 


• 



Fot summary of tht eltments of reduction see page 3, 



420 4- 

370 - 
440 I- 



455 
458 



-h 



455 -H 

I 

465 + 

470 |-H 
475 |- 



4 
I 



580 + 
584 ,- 



571 
565 



4- 



560 + 



514 
509 
495 

420 



708 
700 



4- 
4- 



4- 
+ 



4- 
+ 
4- 

655 i + 



634 
570 



— 2 



603 |4- 



38.5 

10.3 

12.8 
23.0 

35.5 
9.6 

29.8 

43.8 

0.8 

31.4 
29.8 

24.9 

19.7 

36.5 
32.1 



32.0 
26.4 

59-2 

36.9 
37.6 



17.4 
17.4 

50.3 
33.0 



36.8 

37.6 

17.3 

17-3 
12.9 

26.3 
29.4 

32.9 
31-2 



571 > 26.5 



557 



\ 56.6 



// 



c 
c o 

ZS u 

^ t: 

en r 
— O 

SO 



// 



358 54 32.2 
97 25 36.2 
83 8 53.5 



2.4 

3.3 
3.0 



90 23 3.2 — 4.2 

358 36 20.1 — I.I 
100 28 22.6 — 0.7 



85 25 12.2 — 5.0 
40 36 41.9 — 1.0 
358 54 35-3 '+ 0.8 
73 " 14.4 



83 6 10. I 
41 26 32.8 
78 48 20.6 



4 



332 
98 



I 

5 



26.9 
33.3 



1.6 
0.2 
— 0.2 
4- 2.1 
-h I.I 



80 I 4.4 — 1.2 

78 45 34.9 |- 1.0 
27 32 II. 5 — 1.7 

69 46 23.2 -1-16.0 
83 6 7.7 — 0.7 
22 19 51.8 — 1.8 



79 51 30.6 -f- 0.8 

75 30 23.0 -f 2.2 

96 38 26.9 — 7.4 

83 44 27.6 — 4.8 

84 16 24.8 — 4.8 



2.7 
2.7 

0.8 
0.7 



68 16 41.6 
68 16 23.7 

90 57 36.6 
79 51 29.0 



82 59 7.1 

83 31 31 
67 40 26.9 

67 40 9.7 

63 22 28.0 

343 4 30- I 

77 23 29.8 
80 I 4.7 

78 45 34.6 



75 30 21.2 4- 0.4 
95 22 4.8 ,— 6.7 



— 


4.7 
4.7 

2.6 
2.6 


— 


O.I 




0.0 


+ 


0.5 

0.6 


— 


I.I 



No. 



12 



MOON'S— 



Parallax. 



Scmi-diam. 



— 22 9.4 14- 16 14.9 



32 



OBSSRVATIONS WITH THE TRANSIT CIECLE. 



DATE. 



1858. 
April; 



8 



17 



18 



21 



a 

9 

55 



I 

9 

3 

4 

5 
6 

7 

8 

9 
10 

II 
19 

13 

M 

15 
16 

17 

18 

19 
20 

21 
22 
23 
24 

25 

26 

97 
28 
29 
30 
3< 

32 
33. 

34 
35 
36 
37 
38 

39 
40 

41 
43 
43 

44 

45 
46 

47 
48 
49 



OBJECT. 



a Andromcdae . 
Polaris . 

Sun I, S. . 
Sun II» N. . 
Venus I, S. 
Venus II. N. . 
a Canis Mi n oris 

/} Geminorum 

e Draconis, S. P 

X Ursac Min., S. P. 

« Cephei, S. P. 

K Cancri . 

a HydrsD . 

Anonymous. 

Polaris, S. P. 
C Virginis 
17 Ursae Maj., (Ref.) . 

e Bootis,.(Ref.) 
e Bootis . 
Moon II, S. 

Venus I, S. 

Venus II, N. 
I Aurigx 
a Andromedae 

Mercury, (center) . 

Polaris . 

Sun I, S. . 
Sun II, N. . 
a Tauri 

Venus I, S. 
Venus II, N. 

I AurigsB 
/i Leonis . 

l3 Cephei, S. P. 
e Leonis, (R.) 
fi Leonis . 
79 Draconis, S. P 
a Leonis, (R.) 



r 

9 

P 
a 

6 



V 

7 
4 

n 

K 



Leonis, (R.) 
Draconis 
Leonis . 
Ursae Majoris, 
Crater is 

Draconis . 
Leonis . 
Ursae Majoris 
(H.) Draconis 
Virginis 
Draconis, (R.) 



(R.) 



t 

I 

O 



N. 
N. 

N. 

N. 
N. 
N. 
N. 

N. 
N. 
N. 
N. 
N. 

N. 
N. 

N. 
N. 

N. 

N. 
N. 
N, 

N. 
N. 
N. 
N. 
N. 
N. 

N. 
N. 

N. 
N. 
N. 

N. 
N. 

N. 
N. 
N. 

N. 
N. 

N. 
N. 
N. 
N. 

N. 

N. 
N. 
N. 
N. 

N. 
N. 



t 
S 

> 



2 
2 
2 
2 

3 



2 
I 

2 

3 

2 

2 

3 
2.1 



2 

3 

3 

2 



4 
3 



3 
3 

3 
3 
4 
3 
3 

3 
3 
3 
3 
3 

4 
3 
4 
4 

• 

a. 4 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



I. 



n. 



I t I 

III. IV.! V. VI. 






58.3 1.2 2.9 9.9I2.I'I4.3 
• 57«o- 4-0' . . 

, i 

59.8 2.3 . . ! . . ' 
9.211.813.319.221.523.629.631.333-8 
20.523.225.0 .... . . 142. 644. 347.0 

. . . 30«i33-6 34.7 36.8i38.9l . . | . . j 
50.352.854.3 0-5' 2.5 4.510.812.214.8 



VII. 



VIII 



IX. 'Mean wire. 



21.423. 1 26.0 
ii.o; . . 



. . . 48.450.853.2,55.3 

3 152.144.440.222.216.210.3 

4 I . 
I 

3 



57.7 ..... 
52.648.140.5. 



. . 55.0 6.019.5! . . j . . 



52. 741. 134. 015. 4, 6.4. . . 
2.9 5.6, 7. 0,13. 215.317-4 



33.536.137.643.445.847-9 
4i.2;42.747-349-5 51.4 53.5 



. . 47. o- . . 58.036.0 . . 



26.328.830.436.538.540.5 



45.147.453.957.1 



O.I 3.2 



47.61 .... . 

23.625.127.7 

I 

54.2,55.6i58.2 
55.5 o.5i 1.9 



46.548.250.5 
6. 513. 715. 1 



6.0| 9.0:15.5 19022. 3125.535.638.643.3 

39-542. 5:44. 3,5^.1 53.555-7 
48.050.6.52.258.7 0.8, 3.0 



2.7 4-3 7-2 
9.2 10. 913. 5; 

27.4 29.032.2 



4.9. 7-5, 9-4 

. . I . . 14.917.119.3121.724.0 . . I . . 

23. 1126. 1 27.9 35- 1 37-640. 147.4 49. 1 52. 3 
32. 8 35. 8 37. 4 44 -4 46. 8 49. 0156. 057. 8 0.8 



16.5119.020.4.26.628.730.7 
. . I36.0 0.523.047.5 



20.6 
44.2 



. . 134.536.638.840.8 
. . 44. 8 46. 8148. 9 51.0 



37.038.441.0 
8.o| . 
I 
43.0 . 
53.0, . 



23.325.031.2 



47.248.9 . . 
. . 54.356.658.9 



33-4i35-54i. 9143-546. 1 



I.I 



. . 31.7,34.1 36. 5i39-o 



7.1 8.7111.6 

3.4 • . ... I 

I I 

41.51 



15. 3,18. 2 20. 0,26. 7^8. 9-31. 1 38.2139.942.5 



I9.I;I4.I 



32. 4j35. 2 37.043-646.0 
26.129.030.7:37.5,39.7 
. . . 5i.744.2;37.8 
32. 635. 136. 742.9145. 1 



7-5 1.255.5 



48.1154.8,56.459.3 
42.OJ49.0I50.553.4 

30.423.5' . . I . . 
47-153.555-2,57.5 



53.1 56.057.6: 3.91 6.2 8 

21 
4.1 6.7 8.2,14.5116.518 
31.837.440.554.0,58.5, 2 



.3115. 
.6130. 



-5 

-7 
57.5 0.0 1.6 7.9I10.012.1 



. . I . . 46.1 
24.427.028.5 



51.7 
34.7 



57.3 



22.3 



I.I 3.6.15.5 



. .-I 5.7 
25.0-26.5 

3.41 . . 



15.7 
32.6 



57.9 
36.7 
17.9 



I 



4 

38 
21 



.0 

.8 

.3 



o . . 
0*46. 

734. 

25.7,35.645.9 • • 

7 44- 



24. 
16. 

18. 



0.16. 

oi . . 
7,26. 
019. 

519- 



10. ( 

45." 
31. 



34.6 
21.5 



36 
27 



.6 
9 



42. 

39. 



8:44. 



5ii9.2 
, |. . I 
3,28.9 
3I25.0 
922.6 



449-1 

4,38.9 

3;46.8 
752.2 



Inst. 



Clock 
ar'nt. 



|*PP 



Clock 
adopted. 



m. s. 
I 12.13 
9 34.70 



9 13 

11 21 

59 33 

59 34 
32 2 

36 53 

48 16 

56 6 

12 56 
o 15 

20 45 

36 51 
9 58 

27 38 
41 o 

20 22 

38 53 
56 o 

41 18 
41 19 

47 37 
o 46 

21 28 
9 23 

45 38 
47 48 
27 33 
45 57 
45 58 

47 36 
44 28 

27 7 

37 45 
44 39 
50 37 

o 45 



12 
22 

24 

54 
12 



6 
12 
16 

58 
10 



22 57 
29 36 
46 17 
5 25 
12 34 
27 15 



s. 

— 0.2g 
+ 11.76 



S. 

-I-2I.48 



88- 
48- 

77- 
62- 

52- 



0.39 

0.39 
0.29 

0.29 

0.41 



+ 21.72 



08 — 0.25 -H21.63 

29|— 1.18 . . 
571-15.98: . . 
97|- 1. 67, 



31 - 0.37 



+ 21.56 



86—^0.49+21.65 



50 

57 
47 
23 



— 0.31 
-12.531 

- 0.44 
+ 0.14 



I 



+ 21.65 



27+ 0.18 

42j— 0.26+21.58 

77- 0.53 



371 
401 

63 

75 
70 
34 

74 

91 
29 

95 
86 



0.08 

0.08 

0.07 +45 

0.09J+46 

0.08 

1.06 



0.08 

0.08' 

0.08+47 

o.o8i 

0.08: 



-85 
.83 



s. 

+21.54 

+ 21.55 

+21.55 

+ 21.55 
+21.57 
+ 21.57 

+ 21.60 

+ 21.60 
i + 2i.6o 
I+2I.60 
1+21.61 

! + 2I.6l 

+21.62 
I+2I.62 
1+21.65 
I+2I.65 

1 + 21. 65 

+ 21.65 
+ 21.66 
+ 21.66 

+45.85 
+45.85 
+ 45.85 
+ 46.72 

+46.75 
+46.79 



+46.81 

+46.81 

.00 +46.93 

+46.94 
+46.94 



56;— 0.09+46.94 
98 — 0.08+46.97 



28— 0.18 

87 + O.OI 

77- 0.14 

52— 0.19 

08 — 0.02 



+ 36.19 



20 0.00 
84—0.06 
49— 0.15 +36.21 
+ 0.17, . . 



36 
12 

94 
73 
97 
72 
60 

55 



+46.94 
+ 47-16 

+ 50.11 
+ 36.12 
+ 36.12 
+ 36.13 
+36.13 

;+36.i4 
+36.15 
+ 36.15 
+ 36.17 



2; * 



Apparent R, ^ g 
Ascension. 



— o.i7; + 36.i6 +36.18 



+ 



0.08 
0.16 

O.II' 

0.041 
0.16 
0.2S 



+ 36.21 



+36.23 



+ 36.19 

+36.19 
+36.21 

+36.22 

+36.23 

+36.24 






// 



I 33.42 + o.<y» 

1 10 8.03 + 1.24 



I 
I 
3 
3 
7 



9 33.26 
II 42.64 
59 55.05 
59 55-90' 
32 23.71 



— O.I5 



7 37 14.43- 0.03 
19 48 36.77 + 0.23 

19 56 12.19— 0.71 

20 12 16.91 + O.I6 
9 o 36.55 + 0.05 

9 21 6.99 — 0.03 

9 39 12.81 + 5.70 

I 10 7.69+ 0.S4 

13 27 59. 68 0.00 

13 42 22.02 + 0.15 

14 20 44.10 -h o.3t» 
14 39 14.82 + 0.07 
14 56 21.90—66.24 

4 42 4.14 

442 5.17 

4 47 23.41 — O.U3 

o I 33-3S — oil 

22 15.37 — 0.06 

1 10 9.07 + 0.9.^ 

1 46 25.45 • . 
I 48 35.64 . . 

4 28 20.24 — 0.07 

4 46 44.81 

4 46 45-72, . ^ 

4 48 23.41 — 0.03 
9 45 16.06 + 0.24 

21 27 57.21 + 0.33 

9 38 22.00 + O.OI 

9 45 15.75- 0.02 
21 51 13.46+ 0.15 
10 I 21.19— o.io 



10 12 42.34 — 0.04 
10 22 48.93 — 0.42 
10 24 52.49 — o. 10 

10 55 34.70- 0.05 

11 12 46.12 + 0.12 

II 22 34.05 + 0.24 
II 29 12.76 — 0.03 

11 46 54.07 + 0.13 

12 6 1.90— 0.23 
12 13 10.67,— o.ai 
12 27 52.07 — 0.25 



3. R. A. observed over wires Bi and Bg. Only i weight to this observation. 
25. Sun had been shining on microscope III and on west pier. 
37. Observed over IV and set B in N. P. D. 

39. Give ^ weight to the last two readings of telescope micrometer. 
40.44.47.49. Sets B and D in N. P. D. 

49. Observed over wires Ci, C4, C*, and Di. 



OBSEBVAtlONB WITS THE TBANBIT CIBCtE. 



2S 



I MICROSCOPE MICROMS. 



TELESCOPE MICROMETER. 



'5 56, 



307 46 
lq6 .0 ' 

46 54 1 

iS 30 ' 
307 j8 ■ 



6.5 I 1.1 

Hi 



318 46 ' 
3S 54 I 

344 24 

3J0 30 
38 44 

III 34 



Apparent 
Zenith Dis- 
e, South. 



31 3g IS 
31 7 16 
'S 59 47 
15 S9 a8 
33 «9 35 

10 3a 59. 

307 49 26. 

46 58 q 

18 34 18. 
307 31 IS 
38 48 9 



'93 33 4S 
.1 rs 36- 
Si 31 43 

13 54 42 

13 54 M 
5 S6 24 
10 31 54 
39 « 51. 
310 18 31 

a8 3 18 

27 31 25 
22 38 54 
"3 43 43 
13 43 24 





322 3044 

28 54 8 


»03 33 48 

52 56 2S 


3a8 50 33 

38 SB 4. 

344 as 8 


320 33 ig 
38 48 58 
21. 36 49 



82 46 tl 
8> 14 14 
67 6 24 



358 54 33 
347 18 3* 
7848 » 


98 S 33 
6940 S9 
358 36 17 
89 55 19 



61 38 26. 
90 30 o 

I 33 44 



78 38 16. 
73 45 40. 
64 50 16. 
64 49 59. 



104 4 5 

19 56 19 
90 S 51 
35 34 13 
II 38 52, 
B9 55 7 
•9 a8 S5. 



u 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. , ^ 

! S 



1868. 
Apr. 21 



22 



23 



24 



26 



27 



y, 



I 

2 

3 
4 

5 

6 

7 

8 

9 
10 

II 

12 

13 

14 

15 
16 

17 

18 

19 
20 

21 

22 

23 

24 
25 

26 

27 

28 

29 
30 
31 

32 
33 

34 

35 
36 

37 

38 

39 
40 

41 
42 
43 

44 

45 
46 

47 

48 



OBJECT. 



6 Virginis 
Polaris, S. P. 
Polaris, S. P., 
Mnemosyne 

r/ Boot is . 

Euphrosyne 
a Bootis . 

Polaris. 

Sun I, N. . 

Sun II, S. . 

Venus I 
fi Tauri . 
6 Leonis . 



y 

o 



Draconis . 
Cephei, S. P. 
Ursse Majoris, 
Virginis 
Draconis . 



(R.) 



(R.) 



Sun I, S. . 

Sun II, N. . 
a Tauri . 
4 Draconis 
V V'^irginis 



K Draconis, (R.) 

21 Cassiopese, S. P. . 

12 Canum Venat. 

Polaris, S. P. . 

Mnemosyne 

7/ Bootis . . . . 

Euphrosyne .' 
a Bootis . . . . 

Polaris .... 
Mercurj', (center) . 



Sun I, N. . 
Sun II, S. . 
3 Tauri . 
Venus I, S. 
Venus, N. . 



a Orionis 

a Canis Minoris, (R.) 

[i Geminornm, (R.) . 

9 Draconis . 

/ Leonis .... 

I Cephei, S. P. . . 

a Ursae Majoris . 

J Leonis, (R.) .. 

Comp. * for (98) . 

V Leonis .... 



t 

O 



N. 
N. 
N. 
N. 
N. 

N. 
N. 

E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

A. 
A. 
A. 
A. 
A. 

A. 
A. 
A. 
A. 
A. 

A. 
A. 
A. 

N. 
N. 

N. 
N. 
N. 
N. 
N. 

N. 

N. 
N. 
N. 
N. 

N. 

N. 
N, 
N. 
N. 






2 
3 

1.2 
3 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



I. 



IL 



H. 



IV. 



20.322.924.5 
23.0 



2 

2 

• 

3 
3 

4 

4 

5 

4 
I 

4 
4 
4 

3 
3 

4.3 
4.3 
4 
4 
4 

4 
3 
4 
3 



2 

2 

3 

2 

3 



2.6 
36.3 

16.6 
50.9 



12.8 



6.7 
40.7 



V. 



30.5:32.5 
58.034.0 



12.7 
47.3 



5.4 
39-1 

18. 921.01 . . 28.7 
53.555.2I 1.6 3.8 



VI. VII. 



VIII: IX. Mean wire. 



34.741.0 
13.046.5 



16.923. 1 



15.5 



56.659.3 
50.553.4 



25.0-50.0 



10. o 

17.0 

I.I 

55.4 



49.551.5 



5.9 
38.0 



12. 414. 5 



5.6.13.0 

» • 

40.5 



18.5 
22.1 

44.847.5 



46.8,49.7 
57.8 0.5 

• • ' • • 

I 

• • ■ • 

6.3 8.8 



49.6 
44.1 



20.3 

2.1 

34.8 



40. 

47. 



23.5 

7.7 
2.1 



25.5 
10. o 

4.5 
40.4 



35.641.7 
12.5; 3.2 
54.0' 



47.659.1 



51.3 
2.5 

• • 

49.1 
10.3 



57.4 

8.5 

• • 

58.2 
16.4 



58.0 

37.7 
12.4 

3.0 



16.7 18.9 
27.5133.8 



19.4 
13.8 




Inst. 



24.5 
59.6 



27. 0| 
2.3 



39.341.9 
14. 1 16.8 



38 14.86 
47 49.37 




Clock 
adopted. 



Apparent R. 
Ascension. 



2 * 









s. 
+ 36.26 
+ 36.27 



h. m. s. 

13 3 8.77 
I 10 9.92 



s. 
0.05 

o.Sq 



0.17I . . 1 + 36.29 
0.14+36.28 +36.30 



o 29.16— 0.17 . . +36.31 
9 3.80— 0.14+36,35 +36.31 



I 



9 14.32 



13 38 50.98! . . 

13 48 25.53 — of^i 

14 I 5.301 

14 9 39.97 — 0.03 



35.538.1 
21.0I23.7 
15. 618. 5 



45. 045. 9:46. 8 



12.2 
6.9 

43.5 

47.5 5. 410. 017. 2 
55.4I46.O1 . . 
8.9115.5^18.4 



4 
6 

9 

17 
6 



14.50 

25.47 
10. II 

4.52 

14.14 



9.6 19.8 



47.153.259.4 
34.7 19. 1 II. 6 

49.5'57.4 0.0 
8.5l42.0;22.o 

. . '54. 8158.3 



59.6 
10.6 

53.4 

9.1 

18.4 



1.6 
12.6 

56.7 
18.9 

20.4 

5.6 

4.2 

2.7 
0.0 

3.7 



29.5 

7.8 
18.7 

57.6 
29.1 
26.6 

II. 5 

• « 

10.6 

35.0 

8.0 



9.2 
20.6 

58.8 



22.7 



12.0 

23.2 

0.0 



22 41.62 

33 3.84 

1.54 

• • • 

5 912 



— 0.13 . . 

— O.I3; . . 
~ O.Ilj . . 

— 0.10+51.98 

— o. 121 + 52.21 

+ 0.12! . . 

— 0.61 

+ 0.09' . . 



28.1 30.7 



12.5 

• • 

9.1 



22.924.631. 1 33.335-542.0,43.6 

4.8 6.6112.5,14. 81 16. 8:23. 1I24. 6 
37.3 39.0J45.5 47. 8I49.7 56.4,58.0 



28. Oi . . 13.0137.0 
22.224.726.232.3:34.536.4 



4.4 

15.7 
48.1 

19.4 



54.3 

• • . 

5.6 

1.5 
13.2 

34.9 
13.6 

58.6 

5.4 
6.1 



7.O1 8.6 



18.4 
51.0 
22.3 



20.0 
52.6 



15.0:17.1 19.2 



26.3 
59.6 



24. 1 30. 8 



57.058.2 

24.9 
8.5|io.3 

12.9 
15.9 



28.4 

19. 1 

1.2 

8.0 



4.6 

26.8 

17. 1 

19.045.7 

17.4:23.6 



28.4130.6 
4.2 

35.4 



1.9 
33.2 



24. 8j 9.2 
22.535.7 



2.9 
9.6 



8.6 10. 1 



9.5 

15.7 
16.4 



6.7 
28.9 

19.5 
53.3 
25.7 

5.0 
40.2 

II. 7 
17.7 
18.3 



8.7 
31.0 
21.8 

2.9 



15.0! 
42.8 

25.5 
36.9 

II. I 

42.2 



15.0 
33.0 

28.7 
28.7 



27.834.0 



16. 1 

■ • 

II. 8 

46.2 

27.3 
0.6 



7 59.49 
10 10.56 

27 28.00! — 

5 8.88 + 
12 18.45 — 

26 59.36 + 

36 4.34 

49 0.04 

9 21.20 

35 59.24 

47 33.28 

57 14.73 

8 47.68 



0.33 



— 0.14 



+ 51.98 

+ 51.98 
+ 52.04 

^52.04 
1 + 52. 16 

+ 52.16 

+ 52.17 

+ 52.17 

• • 

i + 52.18 



+ 52.40 

— 0.14I . . +52.40 

o.i4' + 52.4i +52.40 

0.13 . . 1 + 52.42 

0.16 +52.36 ; + 52.42 



2 5 6.35 . . 
2 7 17.32 . . 
5 10 2.04 + 0.77 
5 17 56.46+ 0.05 
II 7 6.16 — 0.07 

II 23 33.90+ 0.1? 
23 33 55 .401- 0.02 

11 46 53.80— 0.09 

« • • • ■ * 

12 6 1.63— 0.40 



44.2 

27.1 
38.4 

44.0 



10 15.35 
46.8 16 34.46 

29.6 20 17. of) 

41.0 22 28.41 
15.9 18 1.93 



47.0 



O.I 

44.4 
13.8 
19.7 
20.3 



45.3 

57.7 
20.3 

26.0 

26.5 



16.5 

• ■ 

30.5 
35.4 
35.7 

41.5 
I.O 

22.0 

27.4 
28.1 



0.34 
0.34 

O.IO 

2.56 

0.17 

0.14 
0.18 
0.13 



+52.48 
-1-52.39 

• • 

+52.48 



2 


8 


51.75' . 


2 


II 


2. 82 . . 


4 


28 


20.26 — O.OI 


12 


6 


1.43— 0.54 


12 


13 


10.71 + 0.05 



28 33.16 



19.11 

■ • 

33.5 
46.3 
38.1 

35.3 

6.5 

24.8 
29.9 

30.6 



48 6.68 

32 28.92 

37 19.50 

23 53.99 
42 25.71 



45 

55 

7 
16 

30 



4.94 
40.08 

11.64 

17.71 

18.33 



+ 3.69 

— 0.17] 

I 

— 0.16 

— 0.16 

— 0.14 

— 0.14' 



- 5.43 



— 0.17 

— O.OI 

+ 0.08 
+ 0.19 

— o 17 

— 0.42 

— O.OI 

+ 0.05 

— 0.19 

— 0.18 



- 5.39 



• • 



-^52.42 
+52.42 
+52.42 
+52.42 
+52.42 

+52.42 

+52.42 
+52.42 

- 5-41 

- 5.41 

- 5.42 

- 5.42 

- 5.43 

- 5.44 






• • 



- 5.50 



• • 



- 5.41 



5.44 
5.45 
5.45 
5-47 
5.47 

5.47 
5.48 
5.48 
5.48 
5.48 



12 27 52.12— 0.13 

36 56.42 — 0.4S 

12 49 52.36'— 0.05 

1 10 11.06 -h 0.S4 

13 36 51.49: - • 

13 48 25.56 0.00 

13 58 6.97 . . 

14 9 39-97 — 0.05 



I 10 13.63 + 2.43 

1 16 28.88 — 0.03 

I 

2 20 11.48 . . 
2 22 22.83, 

5 17 56.36— 0,01 
5 28 27.58 + o.Si 



5 48 1.07!— 0.05 

7 32 23.46— o.oS 

7 37 I4.I3|+ 0.02 

10 23 48.69 — 0,22 

10 42 20.07 + O.IO 

22 44 59.05 + 0.06 

10 55 34-591+ 0.03 

11 7 6.21 + O.OI 

11 16 12.04+ 4-'^<^^ 
II 30 12.67 — O.oS 



4.6.12.28.30. Wire A used. 

12. N, P. D. all wrong. 
13.21. R. A. over set E. 

33. Sun shone on sympiesometer ten minutes after transit. 
42.44. Band D in N. P. D. 



OBSERVATIONS mXH THE TRANSIT CIRCLE. 



26 



£ 

3 

z 



I 

2 

3 
4 
5 



I 



Circle t 
Division. 



MICROSCOPE MICROMS. 



9 

ID 
II 

12 , 

13 ' 

14 , 

15 I 
i6 

17 
i3 

19 

20 I 

21 I 
22 
23 

24 

2; 

26 

27 
23 

29 
30 
31 

32 

33 

34 

35 
36 
37 
3^ 

39 
40 

41 

42 I 
43 

44 
45 
46 
47 
48 



No. 



43 40 

307 28 

232 26 

46 2 

19 46 

51 58 
18 58 

310 14 

25 46 

26 18 

10 20 
17 36 

328 46 
295 46 
195 28 
29 22 
320 30 

26 o 

25 28 



211 34 
293 8 

359 48 
307 28 

45 40 

19 46 
52 o 
18 58 



33 18 

24 28 

25 o 
10 20 
12 30 
12 30 

31 26 
146 38 
169 24 
322 28 

27 36 

284 24 

336 22 

162 18 

40 46 

38 56 



I. 


r. ' 


4.5 


4.3 

3.8 

6.5 
8.4 


8.1 


7.7 


8.2 


5.8 


10 3.2 


19.3 
8.3 


6.7 


5.3 
8.1 


15.5 


9.3 



6.6 
4.0 



8.0 
6.1 
8.0 

7.9 
4.9 

5.3 
9.7 
3.0 



9.0 



10 



II. 



2.5 
2.6 

4.7 

4.3 
6.1 

6.1 

5.3 

7.4 

0.7 

28.5 

17.0 
5.3 

5.3 
4.0 

8.3 
12.8 

8.7 

3.9 
2.6 



III. 



n 



3.0 
4.2 

5.9 

4.7 
6.4 

6.1 
6.2 

8.3 

0.0 

28.4 

15.4 
3.3 

6.5 
3.8 
6.0 
10.2 
8.0 

2.1 
1.7 



1.6 

7.6 

7.8 

10 15.7 

10 15.7 

9.2 
7.6 

8.4 
6.1 

6.1 

3-5 
4.4 
3.5 
6.7 
6.5 



II. o 

5.5 
6.0 

7.0 

3.1 

3-1 I 
7.7 
1.4 I 



5.8 

28.0 

4.9 

4.4 

12. 1 

12. 1 

6.2 

7.1 
7-2 
3.8 
4.4 

2.7 

2.9 

3.8 
5.0 
4.6 



10.6 

6.5 
6.0 
7.0 
2.5 

3.0 
7.1 
1.3 



4.6 

26.1 

2.9 
4.0 

II. I 

II. I 

4.0 

4.9 
5.6 

4.3 
3.2 

2.7 

2.9 
2.5 
3.1 
3.0 



IV. 



4.4 

5.1 

4-3 

5.3 
6.9 

6.7 
6.3 

8.5 

2.8 
I.I 

16.3 
6.0 

5.4 

3.5 
7.0 

10.4 

7.0 

4.3 
2.3 



TELESCOPE MICROMETER. 



8.2 

7.1 

5.8 

7.6 
3-1 

3.4 
7.6 
1.9 



7.0 

28.0 

4.4 

5.4 
II. 9 

II. 9 

6.5 
4.0 

4.5 
4.7 
3.4 

2.6 

2.0 

29.7 

3-7 
3.2 



Rev. 



28 
26 
28 
28 

24 

24 
26 

21 

?23 
24 

22 

28 

29 
26 

23 
25 

25 

30 
30 



I. 



I 



24 
23 
27 



24 

21 
22 

23 

28 

29 , 

21 

29 
27 
28 

28 

25 
22 

25 
30 

28 



195 
635 
505 

• • 

305 



729 
125 

935 



168 
680 



940 



729 



27 
24 
24 
26 ■ 470 

25 



591 
481 

068 



812 



087 



375 



918 



415 



2. 



Ill 

655 

435 

924 
280 

940 
698 

983 
940 



960 

• • 

633 



III 



732 
151 




479 



520 

304 
069 



768 

• • 

220 

429 
330 



211 

355 



444 

852 



378 



655 
346 



423 



577 



280 



4. 



033 
649 
311 

774 
184 

912 
605 

058 



428 



323 



958 

• • 

622 
810 

695 



586 



452 
590 

• • 

980 
480 



599 
142 

219 

512 

659 

489 
550 
995 



685 



000 
611 
270 

• • 

172 



562 
108 



550 

332 
648 

023 

• « 

550 
760 
940 



o o 

OU'S 
C o 



Apparent 
Zenith Dis- 
tance, South. 



481 



265 
164 



270 

240 

430 
014 
300 



416 

765 

887 

448 
254 



464 

143 
170 

430 
941 

5IO 

491 
991 



720 



0.8 
0.8 
0.8 
0.8 
0.8 

0.8 
0.8 

1.7 



43 42 48.3 

307 31 9.7 
232 28 49.8 

46 7 9.1 

19 49 44.0 

52 4 7.5 
19 I 7.7 

310 18 32.2 

25 49 54.7 

26 21 47.0 



17 38 37.5 

328 48 33.9 
295 49 14. I 

195 31 53.0 

29 25 14.8 

320 33 20.8 

26 2 4.1 
25 30 12.0 



268 

• • 

921 
390 

• • 

320 



800 
829 

372 
226 



0.6 
0.6 
0.6 
0.6 
0.6 

0.6 
0.6 
0.6 



0.3 

0.3 
0.3 
0.3 
0.3 
0.3 

0.3 

0.3 
0.3 

0.3 

0.3 

0.3 
0.3 
0.3 
0.3 
0.3 



211 36 49.0 
293 II 44.8 
359 51 44.2 
307 31 8.5 
45 45 56.6 

19 49 42.6 
52 6 28.5 
19 .1 6.1 



33 21 36.5 

24 32 30.0 

25 4 14.8 
10 24 i.o 
12 32 40.3 
12 32 19.5 

31 30 28.9 
146 40 24.1 
169 26 59.7 
322 30 43.11 

27 38 41.5 



E 

o 

.2 « Refraction 
E 



648 I- 



654 



-\- 



56.7 
17.2 

17.2 

1.8 

21.5 



:-H I 16.3 

656 -♦- 20.5 

— I 6.9 

+ 27.1 

399 4- 27.8 



-h 18.7 



604 



641 
640 



-h 



-f 



35.5 
2 I.I 

16.4 

33.3 

48.5 

28.7 
28.0 



4- 



645 - 

■ • 

645 



+ 



36.5 
17.7 

0.2 

17.2 

0.9 



650 
652 

654 



-H 21.4 
+ I 16.3 
+ 20.5 



472?+ 37.5 



456 



. . ! + 
446 1 + 



457 ,+ 

I 

462 - 

531 '- 
. . ,-f 



25.9 
26.6 

10.4 

12.6 

12.6 

34.8 

37.4 
10.6 

44-3 
30.3 



284 27 28.3 532 - 3 40.4 



336 26 9.7 
162 21 21.8 
40 48 10.2' 
38 58 43.51 



540 






25.2 
18.4 
50.0 
46.8 



Apparent N. 
P. Distance. 


Miscellan'us 
Corrections. 


r (( 


tt 


94 50 6.2 
358 36 13.7 
358 36 14.2 


- 2.3 

- 0.8 

- 0.3 


97 14 32.1 
70 56 26.7 


- 2.6 

— o.i 


103 II 45.0 


- 3.0 


70 7 49.4 


-h 1.0 


I 23 46.5 


+ 0.9 


76 56 43.0 

77 28 36.0 


- 3.8 

- 3.9 



68 45 17.4 

19 54 19-6 

346 53 34.2 

35 34 II. 8 

80 32 9.3 

II 38 53.5 

77 8 54.0 
76 37 1.2 



- 1.0 

- 1.4 
-h 0.4 

- 2.0 

- 0.3 
1-3 

- 3.9 

- 3.8! 



19 28 55.7 
344 15 48.3 

50 58 5.2 
358 36 12.5 

96 53 18.7 



- 1.9 

-\- 2.0 

— 0.9 

— I.I 

- 2.6 



70 56 25.2 — 1.2 

103 14 6.0 ,— 3.0 

70 7 47.8 — 0.2 



84 28 35.2 — 41 



75 39 17. I 

76 II 2.6 

61 30 32.6 

63 39 14.1 
63 38 53.3 

82 37 24.9 
84 26 34.5 
61 39 32.1 
13 36 20.0 
78 45 33.0 

335 30 91 
27 32 5.7 
68 45 17.8 

91 55 21.4 

90 5 51.5 



- 3.6 

- 3.7 

- 0.9 

- 2.4 

- 2.4 

- 0.7 
-h 0.5 

- 0.6 

- 1.8 

- 1.2 

- 1.4 

- 1.8 

- 0.2 

+ 28.3 

- 1.5 



Barom. 



in. 



External 
Thenn. 



Attached 
Therm. 



For summary of the elements of reduction see page 3. 



1 


No. 


MOONS— 




Parallax. 


Semi-diam. 






/ // 


• 



26 



0B8BEVATI0NS WITH THE TRANSIT CIRCLE. 





• 




• 




SECOXDS OF TRAXSITS OVER WIRES. 


CORRECTIOXS. 


i 


1 ^ J 


DATE. 


Xi 

B 

3 
^: 

I 

2 

3 
4 

5 




OBJECT. 


w 

Xi 



1 

N. 
N. 
N. 
X. 


• 

1 2 

. 4 

1 2 

1-3 

2 




1 1 

VIII IX. Mean wire. 

1 






Apparent R. » Jlr 


I. IL iIII. IV. 

1 ! 
42.545.152.055.4 
23.526.227.934.1 

6.1 I9.i'26.7l56.6 

. . ,'28. 1*32.744. 8 

48.338.833.4 10.8 

1 


! 1 

V. VI. VII. 


t Inst. 

1 

1 


Clock 

appar'nt. 

1 


Clock 
adopted. 

s. 

- 5.48 

- 5.48 

- 5.48 

- 5.49 

- 5.49 


Ascension. T. t 

1 ^■- 


2868. 
Apr. 27 


y 
4 

K 

21 


Ursac Majoris, (R.) 

Virginis 

(H) Draconis . 

Draconis, (R.) . 

Cassiopesc, S. P. . 


'58.8 
36.1 

6.6 

57-3 
3.5 


1 

. . 13. 2115. 820. 2 

38.144.4:46.048.4 
i6,947.o|55.o; 7.4 

3.3 9-5.21.7*34.1 
56. 133. 327. 218. 1 

III. 


1 m. s. s. 

j 46 59.06 4- 0.27 

1 58 36.08 — 0.17 

6 6.82 -h 0.27 

27 57.22 -h 0.59 

37 3.28 — 0.56 


s. 
- 5-50 

• • 

i 

• • 

1 • • 


h. m. s. s. 
II 46 53 •87,-'- 0.05 

11 58 30.43.— 0.04 

12 6 1. 61 — O.I'? 
1 12 27 52.32 -•- O.It' 
1 36 57.23 + o.r> 




6 

7 
8 

9 
10 


8 

V 
a2 


Virginis 

Polaris, S. P. . . 
Ursse Majoris, (R.) 
Euphrosync 
Librae .... 


N. 

' N. 

N. 
N. 
X. 


• 

3 

2 

• 

3 


2.2 4.7 6.3 
. . ] . . .12.0 

1 8. 2|I2. 0*14.3 
1 6.5 8.212.2 
.29.732.333.8 


12.5 14.5.16.5 22.6 
44.023.0- 0.034.0 

23.7|27.ii30.4 39-8 
14.316.4 18.620.6 

40.442.544.551.0 

1 


24.226.6 

. . 1 . . 
42.346.2 
24.726.5 

152.555.2 


3 14.45-- 0.19 
10 22.92 — 4.09 

42 27.11 -1- 0.22 
55 16.45 ~ 0.21 

43 42.43 — 0.21 

1 


- 5-57 

• m 

• • 

- 5.55 


- 5.49 

- 5.49 

- 5-50 

- 5.50 

- 5.50 


' 13 3 8.77i-h 0.05 
1 I 10 13.34 -♦- lO"? 

' 13 42 21.83 — O.IO 

13 55 10.74' . . 
. 14 43 36.72!-«- 0.03 


1 


II 
12 

13 
14 
15 


/? Ursae Minoris . 
/? Bootis .... 
48 Cephei, S. P. . . 
/^ Libne .... 
/i Bootis .... 


X. 
X. 
X. 

1 


4 
3 
3 
3 
3 


1 ' i > 

;..,..' 1.0 8.5 16.1123.831.8 
■49-5 52.9 54.8] 3-1; 5.7! 8.4,16.6 
39.527.721.Oj52.244.2l35.5j 7.0 

49-5.52.153.5.59.9' 1-9' 4.0,10.1 
22.025.1 27.1 34.837.540.1 48.0 


1 
1 

• • ■ • 

18.5 21.9 

0.3.48.5 
II. 7 14.2 

49.853.1 

1 


51 16.24 + 0.16 
57 5.71 - O.II 

3 43.99- 0.63 
10 1.88— 0.20 
19 37.50J- 0.12 


• • 

• • 

1 • • 

- 550 

- 5.43 


- 5.50 
-5-50 

- 551 

- 5.51 

- 5-51 


14 51 10.90 -h 0.35 

14 57 o.ioj— O.OI 
3 3 37.85+ 0.4? 

15 9 56.17 — 0.02 
15 19 31.87 — o.oS 




16 

1 17 
18 

• 


a 


Saturn I, S. 
Saturn II, N. . . 
Andromedae . 


X. 

X. 
A. 


2 
2.1 

3 


17.620.322.0 . . . . I . . 38.140.743.5 
. . . . 27.429.5131.7,33.836.(5' .... 

48.350.553.857.659.4 2.2 

1 


10 30.37 

10 31.68 

I 48.28 


— 0.21 

— 0.21 

.— O.IO 

1 


1 

1 

1 
-14.46 


- 5.51 

- 5.51 
-14.46 


16 10 24.65 . . 

16 10 25.96, . . 

I 33.72; o.ou 


28 


19 
20 

21 

22 

23 


1 
32 


Sun I, N. . 
Sun II, S. . . . 
Moon I, N. 
Leonis .... 
Ursae Majoris . 


E. 
E. 
X. 

E. 
E. 


• 

4.1 

« 
• 


0.5 3.1 4.7 
15. 016. 420. 5 

9. 312. 113. 7 

23.225.827.4 

. . 30. 1 


1 
Il.I 13.1 15. 221. 7|23. 226.0 
22.7 24.9 27.029. ij33. 3 35.0 
20.3 22.4|24.6 31. 1 32.935.7 

33. 635.7137.844.2,45. 648. 3 
35.1 40.045.1 50.0 . . . . 

1 ' 


1 

24 13.18— 0.12 . . 

26 24. 8S— 0.12 

57 22.46— 0.12 . . 

I 35.73 - 0.12' 14.43 
8 40.06 -H 0.05 


-14.51 
-14.51 
-14.45 
-14.43 
-14.43 


2 23 58.55 . . 
2 26 10.25 . 

7 57 7.89+70.?: 

10 I 21.18— O.OI 

10 8 25.6S|-^ o.a^ 


29 


24 


Polaris 


X. 


2 , ,59.524.047.011.5' . . . . 

' 1 


1 
10 24.00 4- 2.76 . . 

1 


— 14.12 


1 
I 10 12.64 -r o.CJi 


30 


25 

26 

27 

28 

«9 


a 


Sun I, N. . . . 

Sun II, S. . . , 

Tauri .... 

Orionis 

Tauri .... 


X. 
X. 
X. 
X. 


- 

3 
I 

1.3 


1 
27. 2 29. 8 31. 4 37. 7 39. 9 41. 948. 3 

39. 0;4i. 843. 349-5 51.653-8 0.1 

21.624.225.8 32.234.5 36.442.7 

13. 015. 4 16. 8 23. 1 '25. 1 27. 2 33. 5 

.• .. •■ .. .. 141.943.0 


50.0 
2.0 

44.4 
35.0 
44.1 


52.5 
4.4 
47.1 
37.3 
45.3 


31 39.86— 0.07 

33 51-72- 0.07 

28 34-32'— 0.07 

8 25.16 — 0.09 

18 10.52 — 0.06 


• • 

— 14.01 
-14.07 

-14.13 


— 4.60 

— 4.60 

— 14.08 

— 14.08 
-14.07 


2 31 35.19 . • 
2 33 47.05 . . 

4 28 20.17 — 0.07 

5 8 10.99 o.oc) 
5 17 56.39+ 0.05 




30 
31 




Venus I, S. 
Venus, N. C. . . 


X. 
X. 


1 1 . ! 

3 6.0 8.7 10.5 17.2 19. 621. 828. 830. 5 

3 , 1 . . 1 . . ■ . . . . : . . 


33.2 


42 19.59— 0.07 . . 
. . ... . . 


-14.07 

. . 1 


5 42 5.45-^ O.Jij 




32 1 

33 

34 


a 


Orionis 
Moon I, N. 
Leonis .... 


X. 
X. 
X. 


3 
2 

2 ; 


2.9 5.5 7. 013. 1 15. 217. 323. 5 
38.241.042.448.851.053.1 59.4 
46.147.752.054.256.458.5 0.7 


25.0 
I.I 
5.0 


27.6 

3.7 
6.7 


48 15.23 — 0.08 
56 50.97;— 0.08 
12 56.37— 0.07 


— 14.06 

• • 

-14.03 


-14.07 

— 14.02 

— 14.02 


5 48 1.0? — O.OI 

9 56 36.87 -\-(>SM> 
10 12 42.28 + 0.05 




35 
36 

37 
38 


9 
a2 


Draconis . 
Leonis .... 
Psyche .... 
Librae .... 


X. 
X. 
A. 
A. 


3 

2 

4 
4 


^1 
10.427.645. 1 53.5. 2.3 

.... J19.0J . . ,31.3 

27.029.931.437.639.2 

38.140.642.448.7150.8 

1 1 1 


1 
II. 220.0 

35.436.5 

41.447.5 

52.859.3 


37.0 

37.4 

49.0 

0.9 


54.4 

43.7 
51.6 

3.5 


24 2.39 
26 6.45 
31 39.40 
43 50.79 


-h 0.16 

— 0.08 

— 0.09 

— 0.09 

1 


• • 

-13.94 

• • 

— 14.00 


— 14.02 

— 14.02 

-13-97 ' 
-13.97 


10 23 48.43 — 0.26 
10 25 52.35 — 0.12 
14 31 25.34 . - 
14 43 36.73 + 0,01 




39 
40 

41 
42 
43 


1 

f3 Ursac Minoris . . ! 
48 Cephei, S. P. . . 
/i» Bootis .... 

Saturn I . . . 

Saturn II . . . 


A. 
A. 
A. 
A. 
A. 


3 
4 

5 

2 

2 


. . 1 . . 1 . . 
47.036.1 29.0 
30.533.835.8 
38.0: . . 142.6 

39.3 . . 43.8 

1 


• • 

0.8 

43.3 
46.9 

48.2 


1 

• • 

52.0; 
46.01 
51.0 

52.4 


• • • • 

42.714.3 
48.556.4 

55.559.7 
56.7 I.I 


• • 

8.1 

58.4 

• 
• 

• • 


• • 

55.5 

1-5 
4.0 

5.1 


. . .1 . . 
3 51.72- 0.24 
19 46.02— 0.05 
9 51.10— 0.09 
9 52.37I- 0.09 


• • 

• • 

-13.99 

• • 

• • 


• • 

-13.97 
-13.96 

-13.96 

-13.96 


3 3 37.51 + 0.12 

15 19 32.01, -^- 0.03 

16 9 37.05 

16 9 38.32 . . 




44 

45 
46 

47 
48 


a 
a 


Scorpii .... 
Andromedae 
Polaris .... 
Mercury I, (center.) 
Mercurj' II 


A. 
A. 
X. 

X. 

X. 


3 
2 

2 

3 
3 


21.424.226.0 

33.836.838.5 

. . 53.038.0 

6.2 9.010.4 

14.6 

, 1 


32.835.2 

45-547.8 

3.028.0 

• • • ■ 

16.7 18.7 


37.344.3 
50.1 57.0 

50.015.5 

. . 26.9 

20.823.0 

1 


46.0 

58.6 

• 
• • 

28.4 

. . 1 
1 


48.8 
1.7 

■ • 

31.0 


21 35.11 — 0.09 

I 47.76— 0.06 

10 27.23 -h 0.70 

42 18.65 — 0.09 

42 18.76 — 0.09 

1 


-13.95 
13.92 

• 

• • 


-13.95 
-13.87 
-13.83 
-13.82 
-13.82 


1 

16 21 20.95 — O.IO 

I 33.83 + 0.05 

1 10 14.104- 1.67 
I 42 4.74 — 0.02 
I 42 4.85 — 0.1? 



3. 5. II. 13. B and D in X. P. D. 
9.37.44. Wire A used. 

20. Seems one rev. too small. 
29. Last wire of set E in R. A. 
36. Da, E, and VII in R. A. 



OBSERVATIONS WITH THE TRANSIT CIBCLE. 



27 



u 

rt 


Circle 


e 


Division. 


3 




2; 






. / 


I 


195 28 


2 


29 22 


3 


320 30 


4 


211 34 


* 

3 


293 8 


6 


43 40 


7 


307 28 


8 


191 2 


9 


52 4 


10 


54 18 


II 


324 8 


12 


357 56 


13 


296 6 


u 


47 42 


15 


I 



MICROSCOPE MICROMS. 



TELESCOPE MICROMETER. 



16 57 42 

17 ' 57 42 

18 TO 28 



No. 



19 


24 10 


20 


24 42 


21 


21 II 


22 




23 


333 4 


24 


310 14 ^ 


25 


23 32 


26 


24 4 


27 


22 36 1 


26 


1 


29 


10 20 


30 


12 16 


31 


12 16 


32 


31 26 


33 


27 3 


34 


1 8 20 


35 


322 28 


36 


28 50 


37 


49 20 


38 


54 18 


39 


324 8 


40 


296 6 


41 


58 


42 




43 




44 


64 56 


45 


10 28 


46 


310 14 


47 


30 16 


45 





r. 



I. 




II. 


// 


II 


1.7 

3.9 
6.0 

3.1 
7.9 


3.1 
1.6 

4.4 

5-2 

6.7 


5.7 
5.4 

6.1 


3.9 

4.3 
6.2 


5. 
7. 


8 

5 


4.3 
5.7 


7 
10 


2 

•7 


3.9 
6.6 


5 
7 
7 


.2 

.0 

3 


3.5 
5.1 
3.9 


5 

5 

8 


.4 
.4 
.0 


3.6 
3.6 
5.0 



10 



10 10. o 
10 8.9 

12 15.6 
6.7 

7.4 

II. 6 
6.7 

11.5 



8.4 

7.0 

13.0 

5.4 

6.4 

10.8 

5.5 
8.4 



10.2 

13.0 
13.0 

9.7 
12 1.7 

10 10.6 

"5 
9.0 

10 17.2 

10 16.0 



10 
10 
10 



4.6 

4.5 
0.9 



10 6.5 
' 10 10.5 

9.4 
12.7 



7.8 

10. o 

10. o 

6.8 

1.2 

8.4 

8.8 

6.9 

16.0 

14.5 

2.1 

3.0 

29.0 



5.5 
8.6 

7.5 
II. o 



III. 



II 

3.1 

29.8 

5.0 

4.5 
6.7 

1.6 
4.2 

4.8 
2.0 

3.7 

5.7 

• 6.3 

4.5 
2.9 

3-2 

1.8 
1.8 
5.0 

7.0 
6.0 

7-3 
5.2 

5.3 

8.0 
2.5 
5.9 



IV. 



5.3 

7.6 
7.6 

3.1 
26.7 

5-1 

7.6 

4.1 

14.0 

no 

2.5 

3.5 
27.0 



29.0 
0.7 
5.0 
2.2 

7.5 

3.8 

5.1 
3.2 
3.2 
4.8 

6.2 

6.9 

5.0 

4.3 
4.8 

3.2 
3.2 

6.5 

7.8 

6.0 

12.3 

4.4 

6.5 

8.2 

2.3 
7.1 



Rev. 



I. 



2. 



3.0 
7.0 

7.3 
8.0 



6.9 

8.1 
8.1 

4.9 
27.6 

4.9 

7.4 

4.1 

12.0 

10.5 

2.2 

2.7 
26.5 



3.2 
7.0 

7.3 
7.9 



24 \ 
26 

26 , 

27 I 

24 I 

28 
26 
29 
30 
24 

20 

27 
22 

22 

26 

22 

23 
23 

24 

24 
25 

22 

21 

19 
21 

27 



005 
642 
018 
920 
427 

060 
832 
030 

• • 

071 



302 

578 
730 

230 



600 
010 
920 
340 

008 
812 

• • 

820 
091 



425 
303 
596 
636 



3. 



4. 



5. 



990 
915 

■ ■ 

847 



842 



358 



765 



870 



440 



543 



655 



134 
835 



23 I 105 



372 



22 

24 
21 

24 

27 



379 
395 



078 
982 

« • 

272 
210 

375 



675 
898 

184 



845 

487 
025 

885 

411 

869 
830 

835 

745 
019 

863 

255 1 
302 

444 
570 



285 
551 



130 
620 

862 



762 
490 
047 
807 
291 

869 
796 
795 

• • 

942 
838 

• • 

220 

380 
535 

160 

546 



205 

566 

960 



354 
030 



28 i 285 , 256 

22 . . I . . 

25 ? 645 449 

2&4 



23 

21 
22 

19 



34 

23 
21 

26 



371 

579 
264 



484 
010 

565 



301 

314 

741 
229 



382 

399 
041 

515 



137 130 
230 



854 i . . 



o o 

ft.-S 

c o 

N3^ 



II 

10.3 
10.3 
10.3 
10.3 
10.3 

10.3 
10.3 

10.3 
10.3 

10.3 

10.3 
10.3 
10.3 
10.3 
10.3 

10.3 
10.3 
10.3 

10.3 
10.3 
10.3 

10.3 

II. O 

II. O 
II. o 
II. o 



Apparent 
Zenith Dis- 
tance, South. 



// 




i2 Refraction. 



195 31 52.81 
29 25 13.4 
320 33 i8.i 
211 36 50.1 
293 n 40.9 

43 42 49.7 

307 31 5.8 

191 4 33.0 

52 8 40.3 

54 21 47.9 

324 12 36.3 

357 58 55.5 
296 10 15.3 

47 46 II. 9 
I 3 9.5 

57 46 17.7 
57 46 0.0 

lo 31 53.9 



24 13 39.5 
24 45 28.5 

21 14 16.6 

333 8 5.0 

310 18 31.6 

23 36 49.0 
. 24 8 33.6 

22 38 56.0 



I 



250 
870 

265 

220 



335 
156 

220 

599 
100 



218 
762 



175 
510 
149 
120 

325 

• • 

061 



IJ.O 

II. o 
II. o 
II. o 

10.6 
10.6 

10.6 
10.6 
10.6 
10.6 

10.6 
10.6 
10.6 



10 24 2.2 

12 20 1.6 

12 19 39.5 
31 30 30.1 

27 6 38.8 
18 22 56.3 

322 30 40.9 

28 54 9.8 
49 25 52.1 
54 21 53.0 

324 12 34.4 

296 10 10. o 

I 3 ro.i 



932 



310 


• • 


1 

I0.6 


299 


279 


10.6 


946 


009 


10.8 


576 


565 


10.8 



Barom. 



in. 



External 
Therm. 



Attached 
Therm. 



For summary of the elements of reduction see page 3. 



547 



564 



570 
578 



592 



604 



395 



315 
284 
270 



261 
343 



362 
456 



// 



— 2 



16. 1 

32.7 

47.7 

35.7 
14.8 



+ 55.6 

- I 15.7 

+ II. 4 

+ I 14.9 

-h I 21.3 



Apparent N. 
P. Distance. 



// 



S o 
? u 

."" O 

so 



// 



35 34 12.3 — 0.6 



80 32 7.3 
II 38 51.6 

19 28 55.4 
344 15 47.3 



94 50 6.5 


- 1.9 


358 36 II. 3 


- 1.6 


40 I 36.8 


+ 0.4 


103 16 16.4 


~ 3.0 


1&5 29 30.4 


— 0.8 



~ 1.9 

— 2.1 

- 1.4 

\ 1.8 






42.1 
2.0 

I 58.7 

I 4.5 
i.o 



15 

49 

347 



18 15.4 

5 14.7 
14 37.8 



+ I 33-0 
+ I 33.0 

-I- 10.7 



431 + 
420 -f 



25.4 
26.1 

21.9 



— 29.0 



98 53 37.6 

52 9 31.7 

108 54 II. 9 

108 53 54.2 

61 38 25.8 

75 20 26.1 

75 52 15.8 

72 20 59.7 



2.9 

3.1 
0.2 
2.1 

1.3 

0.8 
0.8 
0.6 

3.6 
3.7 



24 13 57.2 i— 0.6 



4- 



5.9 

24.1 
24.7 
22.8 



1 23 46.9 — 0.8 



74 43 34.3 


- 3.5 


75 15 19-5 


- 3.6 


73 45 40.0 


- 0.4 



"h 10. o 61 30 33.^ — 0.2 



+ 

4- 
-♦- 
-h 
-f 



4- 

4- 



441 - 

442 ,- 
440 4- 



II. 9 
II. 9 

33.3 
28.3 

18.4 

42.5 

30.7 

6.1 

18.4 



40.8 j 

54.7 j 
1.0 



63 26 34.7 

63 26 12.6 

82 37 24.6 

78 13 28.3 

69 29 35-9 

13 36 19.6 

80 1 1.7 

100 33 19.4 

105 29 32.9 



- 2.4 

- 2.4 

- 0.9 

I— 1.0 



I 



4- 



1.8 
2.1 

3.0 
1.6 



15 18 14.8 \— 2.6 

347 14 36.5 I- 0.3 

52 9 32.3 0.0 



64 59 45.2 


460 


10 31 55.9 


463 


310 18 32.7 


• • 


30 19 5.5 


• • 

i 



I 



4-2 1.3 I 
4- 10.6 
— I 6.7 
4- 33.1 



116 8 7.7 

61 38 27.7 

I 23 47.2 

81 25 59.8 



4- 
4- 



1.8 

1.3 
0.8 

3.6 



No. 



MOON'S— 



21 

33 



Parallax. 



// 



21 16.4 
26 45.0 



Semi-diam. 



// 



+ 



16 II. I 
16 8.7 



28 



OBSERVATIONS WITH THE TRANSIT CIRCLB. 





• 




1 


• 




SECONDS OF TRANSITS OVER WIRES. CORRECTIONS. -^ § 




DATE. 


S 

3 




OBJECT. 

1 












Mean wire. Inst. 




> 


Apparent R. ^ g 




I. 


II. 


IIL 


IV. V. 


' 1 
VI. VILVIII IX. 


Clock 


Clock 


Ascension. ! ^ 2 




z 




-J 




1 






1 








1 
1 

1 

J 


t 

m. s. s. 


appar nt. 


adopted. 




^ ^ 1 
s. 


1868. 




1 


s. 


s. 


h. m. s. 


May I 


I 




Sun I, N. . . . ! 


N. 


2 


25.3:28.1 


29.5 36.o{38.i!39.2;46.648.i. 0.8 


55 38.09— 0.09 . . 


— 13.81 2 35 24.19 . . 




2 




Sun II, S. . . . 


N. 


2 


37.340.2 


41.6 


48.^50.352.358.6 0.2; 2.8 


37 50.14 — 0.09 . . 


— 13.81 ' 2 37 36.24 - . 


3 


f 


Tauri .... 


N. 


3 


55.0 


57.4159.2' 5.71 7.8,10.016.518.220.8, 


21 7.84- 0.09-13.78 , 


-13.79 , 4 20 53.96- 0.01 


4 


a 


Tauri .... 


N. 


3 


2i.4 24.o'25.5 32.0134. 1136.2:42.544.2 


46.8 


28 34.09— 0.09—13.76 ' 


— 13.79 4 28 20.21 — 0.03 


1 5 


.i 


Tauri .... 


N. 


3 


56.359.0 


0.9' . . 

1 


10.3 


. . 19.521.224.4 


3 10.23— 0.09—13.82 1 


— 13.78 5 17 56.36-1- 0.03 


1 6 


6 


Orionis 


N. 


1 
3 16. 820. 9 


1 

25.0:27. 129. 1 


31.0I33. 1 37.3:41.3 


25 29.09— 0.09 — 13.75 1 


1 

-13.77' 5 25 15.21 - 0.04 


, 7 


e 


Ononis ... 


N. 


3 32 1134.536.0,42.244.2 


46.2,52.453.956.61 


29 44.23- 0.09-13.75 


-13.77 . 5 29 30.37- 0.01 


8 


• 


Venus I, S. . . 


N. 


3 


35:738. 540.447. 2U9. 4 


51.758.5 


0.3 


31 


46 49.42 — 0.09 . . 


-13.77 5 46 35.56+ 0.&4 


9 




Venus, N. C. . 


N. 


3 


• • 


• • 


. . 1 


• • • « 


1 
• • • • 


• • 


• • 


1 


1 


10 

1 


y' 


Leonis, (R.) 


N. 


4 42.945.6 

1 


47.353.856.0 


58.1 4.6 6.2 9.0 


12 55.94 4- 0.09 . . 

1 


— 13.72 10 12 42.31 ■¥- 0.07 


II 


I 


1 
Leonis .... 


N. 


3 121.3,24.0 


25.529.633.8 


38.0 


42.0143.7146.7 


42 33.79- 0.09 -13.71 


— 13.71 1 10 42 19.99+ 0.07 




13 




Moon I, N. . . 


S 


3 32.5.35.1 


36.743.145.-1 


47.253.655.2 


57.7 


53 45.13- 0.09 


-13.71 10 53 31.33+67.50 




13 


6 


Craleris 


N. 


3 


47.049.7 


51.357.759.7 


1.8 8.2 


9-7 


12.4 


12 59.72— 0.09—13.73 


— 13.71 II 12 45.92+ 0.02 


14 


/ 


Draconis, (R.) . 


N. 


3 


• • 


■ • 


35.3J41.247.1 


52.9i59.i . . 


« • 


23 47.12 -f- 0.40 . . 


— 13.70 1 II 23 33.82 -r 0.42 


15 


V 


Leonis .... 


N. 


3 


14. 316. 8 

1 


18.324.4 


26.5 


28.534.7,36.138.7 


30 26.48 


— 0.09—13.69 


— 13.70 ' II 30 12.69— 0.02 


16 





Virginis . . . 


N. 


2 


3i.8;j4.3 


35.9 


42.1 


44.2 


46.352.654.056.6 


58 44.20- 0.09-13.73 


— 13.70 II 58 30.41— 0.03 


17 


4 


Draconis . 


N. 


4 


. . 1 . . 


55. o| 


5.0 


14.9 


25.1,35.3 .... 


6 15.06— o.oi . . 


— 13.69 12 6 1.36— 0.19 


18 


n 


Virginis 


N. 


4 


12. 1 14.8 


16. 3122.4 


24.4 


26.4132.634.036.7 


13 24. 41;- 0.09-13. 71 


-13.69 


12 13 10.63 + 0.01 


19 


K 


Draconis . 


N. 


4 


29.036.7 


41.2 


0.0 


5.8 


12. 0I30. 4 34.942.6 


28 5.84- 0.07 . . 


-13.69 


12 28 52.08 + 0.04 


20 


21 


Cassiopex, S. P. . 


N. 


2 


56.446.9 


41.5 


18.6 


II. 5 


4.141.3I35.826.5 


36 ii.4o|— 0.03 . . 


— 13.69 1 35 57.68+ 0.43 


21 


32 


^ Camelopardalis . 


N. 


2 


• • 


• • 


43.0 


2.8,23.5 


42.7 


2. 1 


• • 


■ • 


1 

48 22.82,4- 0.14 . . 


— 13.69 12 48 9.27— 7.70 


22 


32* Camelopardalis . 


N. 


• 


• • 


• • 


50.OJIO.1 30.7 


50.310.8' . . 


• • 


48 30.38 -h 0.14 


— 13.69 12 48 16.83— 0.14 


23 




Polaris, S. P., (R.) . 


N. 


4 


1 


• • • • 


• • 


• ■ • • 


56.0 


54.0 


10 30.35- 5.32, . . 


-13.68 


I 10 11.35!— 1.25 


24 




Polaris, S. P. . . 


N. 


5 


• • • • 


15. 051.0 


27.5 


5.540.0 


• • 


• • 


10 28.12 — 0.84 . . 


-13.68 


I 10 13.60+ 1. 00 


25 


V 


Ursae Majoris, (R.) 


N. 


2 16.620.5 


22.8 . . 


• ■ 


. . ' . . . . i . . 

1 


42 35.56+0.19 . . 


-13.68 


13 42 22.07— 015 


1 

2 26 




Sun I, X. . 


E. 


• 


14.5,17.1 


18.825.3 


27.3 


29.4 


35.9137.3 


39.9 


1 
39 27.28 — 0.03 •. . 


— 13.60 , 2 39 13.55 . . 


27 




Sun II, S. . . . 


E. 


. 26.929.6 


31.0 


37.4 


39.6 


41.648.1 


49.6 


52.3 


41 39.57 


— 0.03 . . 


— 13.60 


2 41 25.94 . . 


4 28 


>' 


Leonis, (R.) 


N. 


3 '42. 244. 8 


46.453.0 


55.1 


57.3 


3.9 


5.3 


8.2 


12 55.13+ O.OI . . 


-12.99 


1 

10 12 42.I5|— 0.04 


29 


1 9 


Draconis, (R.) . 


N. 


J • • • • 


• • ■ • 


• ■ 


. . 36.1 


42.1 


• • 


24 i.io-h 0.26 . . 


-12.99 


10 24 48.37 — 0.02, 


30 


/ 


Leonis .... 


N. 


4 20.523.0 


24.730.833.0,35.1:41.4 


42.8;45.4 


42 32.97 


— 0.05 —12.97 


-12.99 


10 42 19.93 + 0.051 


31 


a 


Ursa; Majoris, (R.) 


N. 


4 20.926.3 


29.6,43.o|47.3|5i.6 


4.9 


8.2 


13-8 


55 47.29;+ o.ii . . 


-12.99 


10 55 34-4II+ 0.07 


32 


A 


Leonis .... 


N. 


4- 5-8 8.7 


10.3 


16.8 


19.1 


21.3 


27.829.433.2 


7 19.16 — 0.05 —13.01 


— 12.99 II 7 6.12 0.00 


33 


7 


Leonis .... 


N. 


4 10. 813. 4 


15.0 


21.0 


23.1 


25.23I.3J32.8.35.4 


24 23.11 — 0.06—12.95 


— 12.98 II 21 10.07— 0.02 


34 


ii 


Corvi .... 


N. 


3 1 . . '38.0 


40.2 


42.4 


44.5 


46.7 


51. 1 


52.8 


55-7 


27 42.35— 0.07—13.06 


— 12.98 


12 27 29.30+ 014 


35 


21 


Cassiopeae, S. P. . 


N. 


' 3 


• • 


. * 


26.0 


18. 1 


10.8 


3.4 


56.2 


• ■ 


• ■ 


37 10.90 


—0.16 . . 


-12.97 


36 57.77+ 0.36 


,36 




Polaris, S. P. . . 


N. 


4 


51.5 


7.0 


3.0 


17.0 


53.0 


29.0 


6.5 


4i.oi5i.o 


10 28.99 


—1.20 . . 


-12.97 


I 10 14.82I+ 0.95, 


! 37 




Moon I, N. . . 


N. 


3 


45.2148.0 


49.4 


55.7 


57.8 


59-9 


6.2 


7.8 


10.4 


36 57.82— 0.06 . . 


-12.97 


13 36 44.79+65.83 


,38 


V 


Boods .... 


N. 


4 


25.528.3 


30.0^36.3 


38.5 


40.6 


47.1 


48.7 


51.4 


48 38.49— 0.05 —12.89 

1 


— 12.96 


13 48 25.48 — O.IO 


7 


39 




Polaris .... 


N. 


2 


38.0 


48.0 


49.0 


35.0 


1.5 


■ • 


• • 


• • 


■ • 


9 23.75 


1 
-h 0.31 . . 


-12.66 


I 10 11.4a— 4.47 

1 


8 


40 


K 


Ophiuchi . 


N. 


•4 


27.1 


29.5 


31.3 


37.5 


39.5 


41.5 


47.8 


49.2 


52.0 


50 39.49 


1 

— 0.13— 12.42 


— 12.50 16 50 26. 86'- 0.05 




41 


a 


Herculis . 


A. 


* 


• • 


■ • 


• • 


• • 


• • 


■ • 


• • 


• • 


4.7 


7 52.07 


• • 


• • 


• • 


1 
.... . . 1 




42 




Moon II, S. . . 


A. 


3 


49.IJ52.I 


53.6 


0.4 


2.5 


4.7 


II. 2 


12.9 


15.8 


14 2.48 


— 0.15 


• • 


-12.49 


17 14 49.84 —66.21 


43 


/* 


Herculis . . . 


A. 


4 


17.9,20.7 


22.429.6 


31.8 


34.1 


40.8 


42.6 


45.6 


40 31.72 


— 0.12 —12.42 


-12.49 


17 40 19. II — 0.07 


44 


}« 


Sa^ittarii . 


A. 


4 


20.1 


23.1 


24.8 


31.6 


34-4 


36.8 


43.8 


45.5'48.5 

1 


56 34.29— 0.17 —12.56 

1 


-12.49 


17 56 21.63+ 0.04 




45 


i« 


Sagittarii . 


A. 


3 


53.4 


56.2 


57.8 


4.2 


6.5 


8.6 


15.0 


16.9,19.7 


5 6.48 


— 0.16—12.52 


-12.49 


18 5 53.83'+ O.OI,' 




46 


d 


Ursae Minoris . . 


A. 


■ 


m • 


• • 


II. 7 


48.5 


23.0 


55.0 


28.9 


■ • 


• ■ 


14 21.50I-I- 0.06; . . 


-12.49 


18 14 9.17.+ 0.03 




47 


I 


Aquilse ... 


A. 


• 


• • 


"•3 


13.6 


15.7 


17.5 


19.7 


23.8 


25.3 


27. g 


27 15.55'- 0.14I-12.54 


— 12.48 


18 27 2.93i+ O.IO 




48 


a 


Lyrae .... 


A. 


2 


26.3 


29.6 


31*7 


39.3 


42.1 


44.7 


52.7 


54.4 


57.7 


31 42.06 


— O.II —12.25 


-12.48 


18 31 29.47 


— 0.23 




49 


51 


Cephei, S. P. . . 


A. 


3 


• • 


• • 


4.0 


22.5 


38.0 


58.5 


14.0 


. . 


• • 


36 39.56 


— 0.32 . . 


-12.48 


6 36 26.76 


+ 0.2Sj 




50 




Polaris .... 


E. 


• 


• • 


• • 


35.5 


57.0 


25.0 


• • 


• • 


• . 


• • 


9 22.87 


+ 7.14 


-12.47 


I 9 17.64 


+ 1. 17 

1 





19.21.22.23.29. Bisections at sets B and D. 

29. R. A. observed over wires Di and D3. 

35. Wires VI. V, III, XL 

41. Wire B. used. 

50. Transit seems recorded i™ wrong. 



OBfiERVATIOKB WITH TH£ TRANSIT CIRCLE. 



29 



MICROSCOPE MICROMS. 



TELESCOPE MICROMETER. 







Apparent 
Zenith Dis- 
tance, South. 




10.9 
10.9 

"•3 
11.3 
"■3 
II. 3 
II. 3 
II. 3 ' 

122 II. 3 

751 ■ 11-3 

315 , II. 3 
892 II. 3 I 

494 11.3 ' 



852 

• • 


910 

• • 


906 

• • 


• • 

660 
750 


• • 

8x6 

693 


• • 

740 

• • 


621 
900 


567 
830 


621 

750 



852 

399 
499 

700 

■ • 

631 
593 



966 
280 

511 



770 

568 



10.6 
10.6 
10.6 

10.6 
10.6 
10.6 

10.6 
II. o 



Of II 

23 18 45.2 
23 50 29.0 

20 O 20.1 

22 38 55.4 
10 24 0.8 

39 17 4.1 

40 10 23.7 

12 16 59.4 

12 16 36.7 

161 37 3.9 

27 38 41.7 
31 16 5-9 
52 26 29.6 
211 9 29.7 
38 58 44.9 



10.6 


29 25 14. I 


10.6 


320 33 16.3 


10.6 


38 48 59.5 


10.6 


328 23 7.5 


10.6 


293 II 36.8 


10.6 


314 46 17.6 


10.6 


314 46 36.2 


10.6 


232 28 55.9 


10.6 


307 31 4.0 


10.6 


191 4 34.7 



23 o 54.6, 
23 32 40. 41 

161 37 3.6 

217 29 17.0 

27 38 40.4 

203 33 51. i! 

17 38 35.2 

35 18 7.4 

61 32 3.3 
293 II 36.9 

307 31 3.0 
45 II 14.3, 
19 49 41 . 5 



58 7 II. 2 
II 5 29.81 
69 16 15.4 

59 57 13. 4i 
312 18 28.2 

47 12 30.2! 

306 9 32.2 
310 18 35.6 



408 
385 

• • 

369 



380 
373 

• • 

444 



460 



468 



470 



470 



Refraction. 



+ 

-h 
+ 



-I- 



-+- 



-+- 



/ // 

24.2 
24.8 
20.4 

23.4 
10.2 

45.7 
47.2 
12. 1 
12. 1 
18.8 

29.7 

34.5 

1 15.2 

34.4 
46.1 

32.1 
46.9 
45.8 

34.9 

2 12.2 



477 
485 



365 
480 



488 



492 

■ • 

496 
500 



504 



- 57.5 

- 57.5 

+ I 14.3 

~ I 14.3 

4- II. 2 






+ 
4- 

+ I 

— 2 

— I 

+ 



23.6 
24.3 

19.0 

43-8 
29.9 
25.0 
18.2 

40.5 

45.2 
12.8 ' 

14.5 I 

57.7 
20.7 I 



29 18 8.51 589 



+ 32.9 



590 .+ I 33.9 



598 
600 



601 
603 



-I- II. 5 

H- 2 34.0 

4- I 41.2 

— I 4.5 
+ I 3.4 

— I 20.3 

— I 7.0 



No. I Barom. 



10 
34 



in. 
30.054 

29.948 



External 
Therm. 



64.1 
57.1 



Attached 
Therm. 



69.0 
68.0 



No. 



Apparent N. 
P. Distance. 



o / // 

74 25 30.6 

74 57 15.0 
71 7 1.7 
73 45 40.0 
61 30 32.2 

90 24 II.O 

91 17 32.1 
63 23 32.7 
63 23 10. o 
69 29 36.1 

78 45 32.6 
82 23 1.6 
104 4 6.0 
19 56 17. I 
90 5 52.2 

80 32 7.4 
II 38 50.6 
89 56 6.5 
19 28 53.8 
344 15 45.8 

5 51 41.3 
5 51 59-9 

358 36 II.O 

358 36 10.9 
40 I 35.3 



U u 

(0 U 
— o 



3.5 

3-5 
2.2 

0.4 
1.4 

1.4, 

1.7 

2.4 

2.4 
0.7 



— I. 

— I. 

— 2. 

— o. 



+ 



1.5 
2.2 

0.9 

2.0 

I.I 



— 21.6 

— 3.0 

— 0.8 

— 0.9 

0.0 



74 7 39-4 - 3-0 
74 39 25.9 - 3.5 



69 29 36.6 
13 36 20.4 

78 45 31.5 
27 32 5.1 
68 45 14.6 
86 25 9.1 

112 40 9.7 

344 15 45.3 

358 36 9-7 

96 18 33.2 

70 56 23.4 



h ^-7 

I- 2.5 

j-h 1.2 

I- 1.3 



- 1.5 



80 25 2.6 '— 0.2 



109 15 6.3 

62 12 2.5 

120 25 10.6 

III 5 15.8 

3 23 44.9 

98 19 54.8 

357 14 33.1 
I 23 49.8 



MOON'S— 



Parallax. 



For summary of the elements of reduction see page 3. 



12 

37 
42 



30 23.8 
40 50.0 
46 59.4 



Semi-diam. 



t' 



+ 16 5.4 

+ 15.46.9 
- 15 9-2 



0.0 

— 0.6 

— 2.2 

- 1-3 

- 2.6 



- I.I 

- 1.4 

- 2.2 

- 2.6 

- 2.3 



2.0 
0.3 



30 



0BSEBVATI0N8 WITH THE TRANSIT CIBCLE. 





. • 




' 








SECONDS OF TRANSITS OVER WIRES. 


CORRECTIONS. 


" 


= 2 ■ 


DATE. 






OBJECT. 


; Observe 


• 

•1 














Apparent R. ' 


rt •£ 


E 

3 




I. 


1 1 1 
i IL III. IV. 


V. VL VII. 


VIII 


IX. ! 

1 


^1 ean wirc.i ] 


nst. 

s. 


Clock 
appar'nt. 


adi 


lock 
apted. 

s. 


Ascension. . 

• 
* 

h. m. s. ! 


V — 


1868. 




1 ! 


1 




m. s. 




s. 




s. 


May 9 


I 




Sun, S 


E. 


• 


• 




• • 


• • • • 


1 . . 


•1 


. . •. 


• 


■ • 


1 

• • • • 


■ • 




2 




Sun II, N. . . . 


E. 


• 


29. 


031. 3 32. 9 39. 441. 2|43. 3 49-9 51. 7 54. 2 


7 41.43- 


0.17 


. . — ] 


[2.47 


3 7 28.79- 


(>6.77 


10 


3 


7 


Pegasi . . . . 1 


N. 


3 


« 


1 ' 
. ; . • 36.4.38.4;40.642.7,46.948.5 5io 


6 38.46 — 


1 
0.18 — 12.03 — ] 


12.05 


6 26.20 — 


0.07 




4 




Polaris, (R,) . . 


N. 


2 


■ 




. . . . 1. . 


. . . . 1 . . . . 1 . . 


• • « 


. .1 


• 


• • 


• • ■ ■ ' 


• 




5 




Polaris .... 


All. 


1.3 


• 


1 


26.047.0 . . 14.047.0 

1 


10 26.52 -h 


5.85! 

1 


1 

. 1 — 1 


[2.05 


I 10 20.30 -}- 


2.70 


II 


6 




Sun I, S. . 


N. 


3 


3. 


6: 6.4 8.014.5 


16.6 18.725.1,27.0)29.2 


14 16.57- 


1 
0.16 


• ^^ 1 


12.03 


3 14 4.36. 


■ 




7 




Sun II, N. . . . 


N. 


3 


17. 


3,19-9 


21. 628. 1 


30.2*32.1 38.7 


40.443.0 


16 30.14 — 


0.18' 


1 


[2.03 


3 16 17.93; 


« 




8 


a 


Tauri .... 


N. 


I 


19. 


6 


23.8 28.i'30.2;32.4 34.6 36.7 


40.945.1 


28 32.38- 


0.18 — IJ 


t.97 !-] 


12.03 


4 12 20.17 — 


. CK) 




9 


a 


Auriga, (R.) . . 


N. 


2 


• 




1.8 4-5! 7.5 


10.5 13.3 19.0 


21.625. 1 


7 7.53 + 


0.12 


• * 


12.03 


5 6 55.62 


0.*X) 




10 


li 


Tauri .... 


N. 


2 


54- 


557.559-1! 6.3 

1 1 


8.4 10.7 17.6 19.4:22.1 

1 1 


18 8.40 — 

1 


0.14 —I] 


[.99 -] 


12.03 


5 17 56.23- 


0.05 




II 


€ 


Orionis 


N. 


1.2 


30. 


232.9138.540.4 


1 

42.5,44.546.552.1.54.7 


29 42.48- 


0.23,— I] 


[.91 -] 


[2. 02 


5 29 30.25 — 


0.10 




12 




Venus I, S. . . 


N. 


2 


54. 


757.5'59-3i 6.1 


8.5 10.8 17.5 19.2122.0, 


30 8.40 — 


0.15 




— 1 


[2. 01 


6 29 56.24 4- 


0.94 




13 




Venus, N. . . . 


N. 


• 


• 


• • • 


• • 


• • 


I 


• • 


• . 1 


• • ■ 


• • 




. ' 


• • 


• • • • 


■ * 




14 


9 


Draconis, (R.). . 


N. 


3 


6 


.7,17.541.3 


49-7 


. . ' . . 


• • 


. . I50.2 


58.504- 


0.83 


4 


. — 1 


[1. 98 


10 23 47-35 - 


0.50 




15 


a 


Ursas Majoris, (R.) 


N. 


3 


19 


.124.728.0 


41. 1 


45.850.2 


3.3 


6.7J12.2 


55 45.68 -h 


0.33 


. . ~~ ! 


tl.97 


10 55 34.04 - 


0.07 




16 


A 


Leonis, (R.) 


N. 


3 


4 


.7 7.5 


■ 

9.1 13.6 


1 1 [ 
20.022.3 26.6 28.3.31. 1 


7 17.89- 


0.02 


b ^^ 


^1.97 


II 7 5.90- 


0.14 




17 


/. 


Draconis . 


N. 


4 


1 

1 • 


1 

• • • 


32.838.6 


44.550.356.7 • • ! • • 1 


23 44.58 + 


0.20 


. — ] 


11.97 


II 23 32.81 — 


0.13 




18 


V 


Leonis .... 


N. 


2 


.12 


.615.016.6,22.7 


24.826.733.0.34.4.37.0, 


30 24.76 — 


0.22 — II 


1.93 -] 


[1. 97 


II 30 12.57 — 


0.05 




19 


/? 


Leonis, (R.) . . 


N. 


1 • 


120 


.0I22.524.030.4 


32.634.741.042.545.1 


42 32.53- 


0.04! 


— ] 


[I.96 


II 42 20.53 — 


0.06 




20 


7 


Ursa Majoris . 


N. 


1 3 


'22 


.226.4 . . 

1 1 


• • 


. . ,47.652.8 

1 


. . 8.6 

1 


47 5.52- 


o.oi| 

1 


• 1 ~~" < 


11.96 


" 46 53.554- 


0.03 




21 





Virginis . . . 


N. 


1 

4 


30 





.1 
32.6,34.0 


40.3 


42. 444. 450.552. i'54. 8 


58 42.35- 


1 

0.20. 


. 1 ' 


[1. 96 


II 58 30.19 — 


0.16 




22 


4 


Draconis 


N. 


• 


II. 


2i23.6 3i.3 


1.8 


12. 1 2i.952.2'59.5[i2.5 


6 11.79 + 


0.51," 


— : 


ri.96 


12 6 0.34 — 


0.4Q 




23 


7 


Virginis, (R.) . . 


N. 


2 


. 


. 


18.520.6 


22.724.626.630.732.334.8 


13 22.59 — 


0. I2I 


— ; 


ri.96 


12 13 10.51 — 


0.05 




24 


,^ 


Corvi .... 


N. 


3 


28. 


I 


31.032.639.2:41.543.651.352.054.8 


27 41.46- 


0.29— 12. <X) —1 


ti.96 


12 27 29.21 -f- 


O.IO 




25 


a 


Cassiopeae, S. P. . 


N. 


I 


36. 


431.5 28. 8 18. 1 14.3 10.6 0.057.1 52.5 


33 14.37- 


0.43 


. — 1 


11.96 


33 1.9P + 


0.2f> 




26 


32' 


Camelopardalis . 


N. 


3 


• 


. . . 38.1 57.4 18.4 . . 59.0 . . . . 1 


48 17.26-}- 


1.55 


■ 


ti.95 


12 48 6.S6- 


S.s^ 




27 


32'' 


' Camelopardalis . 


N. 


• 


• 


■ . ■ 44.8, 5.6 


26.145.7 6.2 


. . 1 . . 


48 25.68 -f 


1.55 


1 ■ 


ri.95 


12 48 15.28- 


0.46 




28 




Polaris, S. P., (R.) 


N. 


4 


« 


• • • • « • • 


.... 50.0 . . 19.0' 


10 40.37- 


9-77i 


• 


11.95 


I 10 18.65 -f- 


0.55 




29 




Polaris, S. P. . . 


N. 


3 


• 


. , . . J26.0 2.037.516.0 ....... 


10 38.60,— 


6.291 


• i 


ti.95 


I 10 20.36 -h 


2 . 2?' 




30 


a 


Virginis 


N. 


3 


16 


0118.720.3 26.3!28.5 30.5 36.8 38.340.9 


18 28.48- 


0.26 —11 


'.'M '-1 


fi.95 


13 18 16.27 


o.c «) 


% 


31 


'/ 


UrsjB Majoris . 


X. 


1.3 


14 


8 18.8 21. 1 30. 333. 8 36. 9 46. 5 49. 052. 71 


42 33.77 - 


0.20 


• 


[t.95 


13 42 21.62 — 


0.23 




32 


1 50 


Cassiopea, S. P. . 


N. 


2 


• 


. . . 37.530.5 


24.0 17.8 11.2 . . . . 


52 24.20 — 


0.65 


1 • 


[1. 94 


I 52 II. 61 -t- 


0.04 




33 


, « 


Draconis, (R.) 


N. 


3 


39 


743.353.258.0 


2.6 7.1 12.3.21.925.7 


2.64 + 


0.39 


• l"" ■ 


[1. 94 


14 51. o<) — 


0.04 




34 




Psyche .... 


N. 


2 


57 


059-9 1-3' 73; 93 "-4 I7.7ii9. i 21.9. 


23 9.43- 


0.25, 


• 


11.94 


14 22 57.24 


• • 




35 


a- 


Libra .... 


N. 


1 . 


36 


339.040.5 46.949.051.2 57.5 590; 1.7 

1 > 


43 49.01,- 


0.27—12.02 —1 


[1. 93 


14 43 36.81 ^ 


0.01 




36 


/> 


Urs'.c Minoris, (R.) 


N. 


3 


• 




.... , 52.7:58.4' 8.4 


51 21.80 -f- 


0.75 


1 ^^__ . 

• 


fi.93 


14 51 10.62 + 


0.t>) 




37 


J 


Libne, (R.) 


N. 


3 


58 


6 o.i 4.1; 6.3 


8.4 10.512.6 16.6 18.2 


10 8.38 — 


0.16 


t • 


11.93 


15 9 56.20 — 


0.04 




38 


/" 


Bootis .... 


N. 


3 


28. 


8'32.o 


33.9,41.5 


44.246.754.456.359.7 


44.17- 


0. II — i: 


!.00 — 1 


11.93 


15 19 32.134- 


0.07 




39 




(>bcle .... 


N. 


21 


• 


. 8.3 


10.2,12.3114. 5'i6. 6.20. 8,22. 4 25.0; 


35 12.39- 


0.26 


• 


[1. 93 


15 35 0.20 


• • 




40 




Juno .... 


N. 


2.1 


47. 


I 50.051.8I57.659.7 1.6 7.7! 9.4,12.0 

; 1 1 


39 59 65 


0.23 


• 


ti.93 


15 39 47-49 


• • 




41 




Saturn I, S. 


N. 


3 


27- 


830.632.3 . . 


.... 49.551.1I53.7 


6 40.83 — 


0.28 


« 


11.94 


16 6 23.61 


• 




42 




Saturn II, N. . 


N. 


3 


■ 


. . . 37. 9'40. 0,42. 044.1 


46.4' . . 1 . . , 


6 42 . 08 — 


0.28 


■ 


11.94 


16 6 29.86 


■ 




43 




Moon II, N. . . 


N. 


• 


• 


. 55.757.8 0.1 


2.3 4.5 


8.8 10.4 13.2 


54 0.04 - 


0.28 


1 • 


[1.88 


19 53 47-8S- 


64.64 




44 


/ 


Ursa Minoris . 


N. 


4 


• 




. . 1 . . . . 


. . 23.553.0 


1 


56 47.90; + 


7.58 


1 • 


[1.88 


19 56 43.60 — 


4.3S 




45 




Polaris .... 


A. 


I . 4» 


■ 


. 46. 036.01 2.0 


26.047.0 9.0 

1 


55.047.0 


10 23.61 -h 


7.51 


» • * 


[1.88 


1 10 19.24 4- 


1. 14 


12 


46 




Sun I, N. . 


A. 


3 


58. 


41 1.3; 2.8 9.3 II. 6 13. 620. 021. 824. 4 


18 11.47 — 


0.18 


• 


[1.88 


3 17 59-41 


• • 




47 




Sun II, S. . . . 


A. 


3 


12. 


4 15. 016. 623. 1 

j 


25. 127. 534. o;35. 538. 3 

1 1 


20 25.28 — 


o.i8 


« 


[1.88 


3 20 13.22 


« • 


1 '3 


48 




Moon II . . . 


E. 


• 


57. 


0'59.7 1.3 


7.8 


„ ' 1 
10. 012.0 i8.4;2o.2 23.0 


33 «;■'): - 


0.25 


> ■ ^"^ . 


[1. 71 


21 32 57.97;- 


63.13 




49 




Polaris .... 


N. 


3 


42. 


5 


. - 135.0 


59.5 


23.0,47.0 


9.5 


• • 


• • t 


10 22.3;- 4- 


8.59 




1 • " ' . 


[1. 63 


I 10 19.34' + 


0.26 


• 


50 


fi 


Arietis .... 


X. 


3 


* 


• 


. . 30.432.4 

! 1 


34.636.841. 1 

1 


42.7 


45. 41 

1 


47 32.44- 


0. 14 


— I] 


[.63 




ri.62 


I 47 20.68 -h 

1 


0.02 

1 



4. Bisections made at i*» 1" 15* and i*» 2™ 30" clock time 

5. Weight 2 to 3d wire. 

14. R. A. over wires Bi, Bg, Ci, Cs, and D3. 
14.17.22.36. Bisections at sets B and D. 

16. Last micrometer reading 15' after passing VII. 

20. R. A. observed over D2, D3, Ei, Ea, and VII. 

28. Double weight to Di. 

34. Wire A used. 

39. N. P. D. very uncertain from using double wires. 
44. R. A. observed over Cs and Di ; weight 2 given to Cs. 
46.47. Wire B used. 



OBSEBVATIONS WITH THE TRANSIT OIBCLE. 



81 



MICROSCOPE MICROMS. 



« ' Circle 
g I Division. 

3 



I 

2 

3 I 
4 

5 I 

6 , 

7 
8 ' 

9 

10 

II I 

12 

13 I 
M 

i6 

17 

i8| 

19 

20, 

21 

22 

23 
24 

25 

26 ! 

27 

28 I 

29 

30 . 

31 
32 , 

33 ■ 

34 

35 

36 
37 
3? 
30 
40 

41 
42 , 

43 
44 

45 

46 
47 

4S 

49 

50 



IS n 

21 32 
21 O 

24 22 

310 i6 

21 2 
20 30 

22 36 
186 54 

10 20 

40 6 

12 16 

12 16 

217 26 

203 30 

162 18 I 
328 48 I 
38 56 I 
156 22 I 
344 24 I 



29 
320 
141 

61 

274 



22 

30 

8 
28 
48 



314 44 

314 44 
232 26 

307 28 
49 18 

348 52 

290 40 

206 2 

48 36 

54 18 

215 44 
132 10 

I o 

52 56 

41 30 

57 32 
57 32 
57 18 



20 16 
20 48 



310 14 

id 40 



I. 



ir. 



10 
10 



8.5 
1.4 

7.1 
0.5 
2.4 

7.3 
2.5 
8.5 
4.2 

4.7 

6.0 

5.5 

5.5 

29.3 

3.7 

0.6 

15.5 

6.5 
2.0 

4.5 

4.2 

4.4 
3.6 

4.2 

4.0 

8.0 
8.0 

3.1 
1.5 

3-5 

3-5 
4.2 

2.0 

5.3 
5.0 

I.I 

5-0 

6.3 

3.7 
6.5 



// 

5.5 
28.5 

4.0 
0.5 
0.3 

3.2 
0.0 

5.7 

4-3 
2.1 

2.9 
2.0 
2.0 
29.2 
3.6 

0.6 

13.8 

3.4 
0.6 

1.2 

1.3 
2.7 
2.2 

2.9 
3.2 

5.9 

5.9 

3.2 

29.7 

0.6 

0.2 

3.5 

2.3 
3.2 

3.1 

1.7 

4.3 

2.4 
1.8 

4.2 



4.1 1.9 
4.1 I 1.9 
2.7 0.0 



8.0 
10 3.3 



10 



I.I 
6.4 



4.8 
0.4 

28.8 
4.0 



III. IV. 



TELESCOPE MICROMETER. 



Rev. 







II 


" 


4.-8 


6.0 


28.0 


28.5 



1.3 

0.0 
0.2 

0.5 
26.6 

4.0 

0.9 

0.8 

1.4 
0.4 
0.4 
27.8 
2.2 

28.3 

13.2 

1.7 
29.1 

0.3 

29.5 

2.5 
0.4 

0.2 
2.3 

5.5 

5.5 

1.6 

28.2 

28.5 

29.7 

2.7 

0.3 
I.I 

0.4 

0.5 
i.o 

i.o 

29.1 

2.5 

29.5 

29.5 

28.5 



2.5 
29.8 



28.8 
1.7 



2.2 
1.6 
1.6 
25.0 
0.2 

26.3 

12.8 

2.7 

28.7 

1.3 

05 

3.2 

29.6 

1.2 

3.3 

6.1 
6.1 
I.I 

0.3 
29.7 



o 
4 

29 

2 

2 

28 
o 

3 
o 

3 



.1 

■5 
.0 

.0 



■3 
.3 

.5 

.8 



1.5 

1.5 

29.5 



3.7 

28.8 



0.2 
3.5 



No. Barom. 



in. 
3 30.251 



External 
Thprm. 



55.0 



Attached 
Therm. 



59.5 



24 



3.4 


22 


28.2 


25 


I.I 


29 


3.8 


29 


29.0 


28 


4.8 


27 


3.3 


24 


2.3 


23 



22 

27 

29 
26 

23 

26 
28 
28 
26 
23 

q6 
^6 

27 

23 
22 

29 

28 

27 
27 

27 
26 

27 
21 

21 
24 

25 
24 

27 

23 
26 

25 
27 
15 



21 
23 



21 
24 



I. 



978 



595 

485 

042 

844 

■ ■ 

535 
995 



680 
581 
475 



458 

• ■ 

415 
300 



225 

942 

828 

• • 

232 



060 



887 



273 



384 



2. 



589 



920 

« • 

484 
496 
448 
042 



515 
570 
030 



650 

550 
469 



716 
435 

• • 

364 
310 



295 
975 

144 

932 

837 
978 

145 



055 



894 



251 



405 



3. 



065 
465 



420 



150 



522 

• • 

675 

890 
730 
655 
351 



400 



050 



925 993 



358 



4. 



926 

130 
102 

• • 

392 
420 

361 

372 

912 
315 

• • 

875 



686 ; 
292 I 
825 ' 

028 

748 
704 

956 
058 

671 
364 
924 
105 
930 



003 
cx)7 



390 

444 



5. 



680 
056 
050 



393 
401 

248 
340 

819 
666 



490 
826 



638 ; . . 

364 I 464 

478 I 390 

295 ; 232 



800 



040 
610 
622 

• • 

972 
750 

• • 

926 



036 



850 I 782 



500 



945 


922 


618 


595 


405 


390 


400 


383 


200 


350 



S o 

NO 



I.o 
I.o 

I.o 
I.o 
I.o 

I.o 
I.o 
I.o 
I.o 
I.o 

I.o 
I.o 
I.o 

0.7 

0.6 

0.6 
0.6 
0.6 
0.6 
0.6 

0.6 
0.6 
0.6 

0.5 
0.5 

0.5 
0.5 
0.5 
0.5 
0.5 

0.5 

0.4 
0.4 

0.4 

0.4 

0.4 
0.4 
0.4 

0.4 
0.3 

0.3 
0.3 

0.2 



10.5 
10.5 



II. 9 
II. 9 



Apparent 
Zenith Dis- 
tance, South. 



57 35 34.1 
57 35 5.3 
57 23 55.9 



I 
E 



as 
E 



413 
560 

• ■ 

540 



438 
435 

• • 

432 



421 

• • 

509 
521 



538 



o < //I 

21 35 24.81 

21 3 42.7' 

24 26 18. 9I 
229 41 22.1, 
310 18 36. ll 

21 4 27. 5| 
20 32 47. 3| 

22 38 55. 8i 
186 57 45.1 

10 24 1. 41 

40 10 22.7! 

12 18 55. 2| 

12 18 29.1 
217 29 17.5 
203 33 51.8 

162 21 23.4 

328 50 29.6 

38 58 42.0 

156 25 16.8 

344 28 3.2 

29 25 I I. 9 
320 33 14. I 
141 10 59.0 

61 32 2.1 
274 52 14.8 

314 46 17.5 
314 46 35.4 
232 28 57.0 

307 31 3.4 
49 20 53.8 

348 55 21.4 
290 42 50.6 
206 6 27.2 

48 42 55.6 

54 21 49.7 

215 47 26.7 
132 13 45.1 

I 3 5.4 
53 o 6.3[ 

41 33 18.8, 592 



550 
562 



580 



580 



580 



585 



617 



20 17 48.5 . . 
20 49 25. 81 448 



310 18 35.6 410 
18 43 44.11 400 



to 



M 



Refraction.! 



// 



+ 



22.3 
21.6 



-I- 26.4 
+ I 8.2 
— I 8.2 



+ 
+ 

+ 
•f 



H- 



21.8 
21.2 
23.6 
6.9 
10.4 

47.7 
12.3 

12.3 

44.1 

25.1 

18.3 
35.0 
46.8 

25.3 
16. 1 



-h 



32.7 

- 47.7 

- 46.7 
-h I 46.8 

- 10 3.6 

- 58.8 

- 58.8 
-f I 16.0 

- I 16.0 
-4- I 8.0 

- 11.5 

- 2 33.4 
4- 28.6 
-H I 6.5 
-I- I 21.4 



4- 

— I 

+ I 

+ 

-h I 

-h I 

-h I 



42.2 

4.4 

I.I 

17.6 

52.0 

32.2 
32.2 
32.0 






-h 



21.0 
21.6 



6.2 
19.0 



Apparent N. 
P. Distance. 



c o 

:r o 

So 



I 



// 



// 



72 42 8.3 I- 3.2 
72 10 25.5 — 3.2 



75 33 6.5 i- 0.4 
I 23 50.9 '+ 0.4 
I 23 49.1 - 1.4 



72 II 10.5 
71 39 29.7 

73 45 40.6 
44 8 29.2 
61 30 33.0 

91 17 31.6 
63 25 28.7 
63 25 2.6 
13 36 19.6 
27 32 4.3 

68 45 16. I 
19 56 15.8 
90 5 50.0 

74 41 29.7 
35 34 8.3 

80 32 5.8 

II 39 47.6 

89 56 8.9 

112 40 10. I 

325 48 32.4 



5 

5 
358 36 
358 36 



51 39-9 

51 57.8 

8.2 

8.6 



100 28 23.0 

40 I 31. I 

341 46 38.4 

24 59 25.4 

99 50 23.3 

105 29 32.3 

15 18 12.3 

98 53 40.5 

52 9 27.7 

104 7 45.1 

92 40 32.0 

108 43 17.5 
108 42 58.7 
108 31 49.1 



71 24 30.7 
71 56 8.6 



I 23 50.6 
69 50 24.3 



- 3.1 

- 3.1 

-f 0.3 

-+- 0.9 

- 1.0 

- 1.2 

- 2.7 

- 2.7 

- 0.7 

- 1.2 

- 0,3 

- 1.9 

- 2.3 
-4- 1.3 

- 1.9 

- 2.3 

- 3.1 
-h 2.1 

- 3.5 

- 2.2 

—20.7 

- 2.8 

- I.I 

- 0.7 

- 1.3 

- 1.6 
•f 0.2 

- 3.2 

- 2.9 
+ 0.7 

- 1.6 
-I- 1.0 

- 1.7 

- 3.5 

- 2.5 

- 0.9 

- 0.9 



- 3.0 

- 3.1 



- 0.5 

- 2.5 



For summary of the elements of reduction see page 3. 



MOON'S— 



No. 



Parallax. Semi-diam. 



43 



/ // 
- 45 38.2 



/ // 
+ 14 50.2 



32 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
May 14 



16 



17 



18 



21 



a 

5? 



46 

47 
48 

49 



I 

2 

3 

4 

5 
6 

7 

8 

9 
10 

II 

12 

13 
14 

15 

16 

17 

18 

19 
20 

21 

22 

23 

24 

25 

26 

27 

28 

29 
30 

31 

32 
33 
34 

35 
36 

37 

38 

39 

40 

41 , 
42 

43 
44 



OBJECT. 



• 

1 ^ 




u 


• 


2: 




v 


^ 




Obs 


• mm 









Sun I . 

Sun II, N. . 
a Tauri . 
a Aurigae 
fi Tauri . 
d Ononis 

Polaris, S. P. 
I. Virginis 
7 Urs;c Majoris 
6 Bootis . 
5 Ursse Minoris 

£ Bootis . 

3 UrssB Minoris 

)l Bootis . 

Moon II, N. 
Polaris . 

Sun I, S. . 

Sun II, N. . 
a Tauri 
I Aurigae 
(i Tauri . 

Venus I, S. C. 

Venus, N. L. 
a UrssB Majoris, 
^ Leonis, (R.) 
rJ Crateris 



(R 



A Draconis, (R.) 

y Cephei, S. P. 

(3 Leonis . 

/i Corvi . 

21 Cassiopeac, S. P 

32^ Camelopardalis 
32- Camelopardal 
Polaris, S. P. 

Sun I, N. . 

Sun II, S. . 
fi Orionis 
ji Tauri 
7 Gcminorum 

A Leonis, (R.) 

A Draconis . 

V Leonis . 

}' Cephei, S. P. 

/? Leonis, (R.) 



45 i } Ursae majoris 



ff Virginis 

K Draconis 

a Cassiopese, S. P 

32^ Camelopardalis 



N. 

N. 
N. 

N. 
N. 
N. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 

N. 
N. 

N. 

N. 
N. 
N. 

N. 

N. 
N. 
N. 
N. 

N. 

N. 
N. 

N. 

N. 

. N. 

N. 

I ^• 

I 
I N. 

' N. ' 

N. ; 

N. ' 

N.. 

I N. , 
N. 
N. : 
N. I 

N. 

N. 
N. , 
N. 
N. 

N. 



3 
4 
3 
4 
3 



3 
4 



3 
3 
3 



3 

3 

2 

2 



4 
4 
4 
3 
3 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



L IL HI. I IV., V. VL VIUVIII 



IX. Mean wire. Inst. 



Clock Clock 
apparent, adopted 



3 . . 



4 
4 
4 
3 
3 



4.6| 7.4 8 
19.321.923 

49-7 53-4155 
54.0j57.0!58 
I4.8;i7.3i8.7'25 



. 129 
9l»5 
429 

6 4 

7 5 



4I32.633. 

.517.6:19. 

932.034. 



7.3 



10. 



34. 
58. 6j 1.2 2. 

I3.7i7-5|20. 

35.o'3;.o|4i. 

. • , • • ,45 ' 



o 
9 



9 

8 



029, 

551 
154, 



3 
,7 8. olio. 

,027. 029. 

,0147.024. 
,910.8 12. 
,1132.836. 
354.9'58. 
.7i 3.812. 



6134-735.742. 
826.1I27.930. 

1:40.442.144 
i'i8.92i.il24, 

3,17.319.021, 

0135.136.6,39. 



4! 
6 

7 

8 

9 

2 



m. 

26 



s 

3.50' 
28 17. 60; 
28 31.98 

7.24 

7.99 
26.97 



7 
18 



s. > 
0.14' 
0.14 
0.16 
0.00 
o.io. 
0.22, 



11.58 '— 

• • 

11.63 I— 
11.58 I— 



O' I . o . . , . 

19.020.6,23. 

45.447.751 

8.3110.5 14. 



5: 



21.0 



10 47.32 —13.52 

28 10.87— 0.32—10.60 — 

42 32.68 -h 0.07, 

20 54.82 -h o.ia 
28 3.324- 1.04 



« ■ 



• • 



112. 3 

[34.5 
55.0 



8'23 
012 



7.26.0128. 2:35. 4 37.0:39.8 

721. 128. 552. 057. 2| 5.5 



15. 1 16. 
44.0150. 
58.6' 0.5 8.4 II. 5I14. 1 22.1 24.827.31 



• - 45.6|49 
5.050.553 



.8,51,253.8! 6.3 

• \^l • • • • 



9-5 



119.0 



41.143-9 
55.858.6 



19.8 



39 26.04— 0.15— 10.87 I— 
51 20.61 -h 0.85 
57 11.37.- 0.04 



48 41-38,- 0.13 
10 27.20J-I- 4.39 



45.652.054.556.6 2.8 4.4, 7.2 
o 



-3 



6.7 9. ilii. 0117. 5 19.221.91 

. . I . . I . . i . . 141.444.1' 



22.7,24.531.8,34.336.644.046.0149.0 

18. 321. 1 



41 54-23 
44 8.90 
28 31.35 

48 34.30 
18 7.24 



53-7 



0.5 2.8 



o. 10 
o.io| 

O.II 

0.07 



10.99 
10.95 I 



4 .49.151.9 

4!- -!• .' 

3 • . 135.740.244.549.0.53.4 2.2 5.611.2 

4 I . • I ■ . . ' 

4 44.147.048.454.656.7:58.7 



5. 012. 013. 616. 51 58 2.79— 0.08 



5.3 6.7 9-4. 



7.314.9I31 

3-452. i'45 
18. 9121. 423 

27.i"29.83i 

55.1I45.840 



.5 
.2 



• . 43-3 . • "55.1 "-7 



3 16.1142.5:56 
. 24.6,49.5 4 



- I . 



18.4 9.8! 0.433.526.7 

.029.431.533.740.0141.5 
.438.140.242.449.250.653.4 

.217.810.il 2.640.1134.125.1 

I 
.8156.717.436.536.851.6,16 

.6 4.124.8.44.8, . . ,59.3'" 

. . I50.6 5-5 



55 44.57+ 0.27, . . 
12 56.77— 0.16— 10.90 



10.87 
10.95 



19. 1 


23 43-27 -H 0.41 


15.3 


34 9.42 


— 0.62 


44.2 


42 31.51 


— O.II 



27 40.24 — 0.17 
37 10.10— 0.54, 



40.2|44. 

55.458. 

9.4,11. 

53-055. 



48.9 



059. 

8;i3. 

857. 

. III. 

I 



5I.0.53-3 
.4 



6.3, 8 
419.6I21 
5 4.6, 6 
0;I3.I 15 



55.4 

10.5 

.6123.7 

9, 9.1 
317-4 



57.5 
17.2 

30.0 



4 
24.3' 



48 16.76 -f 
48 24.51 -h 
10 36.50 — 



2. 

19. 
31. 



21 

34 



16. 0117.820 
19.5. . . 



3.1 

6.5 
10.9 



6. 

14. 
13. 



4 

3.652.4 
18.3 



ol 7.1 
318. 
15.- 
45.' 



8,36. 8|42 

0|2I.I 23 

618.610 

2i.O22.629.Oj3i 



25.1126. 

.848.6 6. 511. 

3I.2I32. 



.1 
.0 
.0 



25.1 

0.7 

33.1 



34.1 
39.6 



27. 
41. 



4 j42. 847. 1149. 

3 , 9. on. 413. 

4 (32. 236. 748. 



35.030.4 



81 0.2 3 
0*19.1 21 
9.55.2 



I 



27.7 



16.713 
15.2134 



7.3 
23.3; 

7.41 

9-4 

54.8 



17.820. 
29.331. 

13.525. 
58.455. 
34.849. 



8,29. 

2I18, 

8,35- 
216. 

043 

I 

I 

3,23 



33 
30 
851 
614 



,2 

5 
.0 

,8 



8. 

5i 
5 
4 
6 



53 53.22 



l_ 



56 8.43I- 

8 21.661 — 

18 6.83'- 

30 15.26 — 



1. 14 
1.14 
4.68 

0.14! 
0.14 

0.25 

O.IO| 

0.16 



10.47 ■ 
10.46 - 
10.41 



7 16.351 
23 42.691 
30 23.11 
34 9-80 
42 31.03 



0.051 

0.431 . . 
0.22 T-10.50 

1.23, . . 

0.09! 



47 3.651^ 0.09 

13 2I.2o|— O.23J 

28 1. 28+ 0.45 



33 13.10 
48 15.14 



- 0.571 
-h 2.44 



. . r 
10.50 

• • 



S. 
1. 61 
1. 61 
1.60 

1.59 
1.59 
1.59 



IS « 

Apparent R. ^ '§ 
Ascension. P t 

.25 



h. m. s. s. 

3 25 51. 75 . • 

3 28 5.85 . . 

4 28 20.22 — 0.02 

5 6 55.65 4- 0.03 
5 17 56.304- 0.03 
5 25 15*16 — 0.03 



0.85 I 10 22.95-1- 2.23 

0.85 13 27 59.70— 0.0s 

0.84 13 42 21.91 4- O.II 

0.84 I 14 20 44.08 -f- 0.16 

0.83 14 27 53.53— 0.10 

0.83 ■ 14 39 15.06 -h 0.03 

0.83 14 51 10.63,-h 0.19 

0.83 I 14 57 0.50-1- 0.30 

0.96 I o 48 30.29— 63. 6<) 

0.96 j I 10 20.63 — 0.62 

0.95 3 41 43. iS . . 

0.95 3 43 57.85 . . 

0.95 4 28 20.29-1- 0.04 

0.95 j 4 48 23 28 — 0.03 



0.94 i 6 57 51.77- 1.03 

I F 

I"*.- ' ' I 

0.92 10 55 33.92 -h 0.06 



0.92 

0.92 
0.92 
0.92 
0.92 
0.92 

0.91 
0.91 
0.91 

0.51 
0.51 
0.50 
0.50 
0.50 I 

0.47 
0.47 

0.47 

0.47 
0.47 

0.47 
0.47 

0.46 

0.46 

0.46 



II 12 45.69— 0.02 

II 23 32.761-h 0.15' 

23 33 57-88 4- 0.34 

II 42 20.48 — 0.04 

11 27 29.15I4- o.og 

36 58.64 4- 0.15 

I 

12 48 6.99'— 7.44 
12 48 14.74 4- 0.31 

1 10 20.91 4- O.^H) 

3 53 42.57! . . 
3 55 57 78I . . 
5 8 10.91 — 0.02 

5 18 56.23 — 0.05 

6 30 4.60— o.ot^ 

II 7 5.83— o.oS 
II 23 32.654- 0.19 

II 30 12.42;— 0.0-) 

23 33 58.104- 0.25 
II 42 20.47I— 0.02 

I 

11 47 53.27- 0.03 

12 13 10.504- 0.02 
12 27 51. 27' 4- 0.02 

o 33 2.07j 0.00 

12 48 7.I2I— 7.15 



6. Set E and VII in R. A. 

15. R. A. over Cs, D, VI, E3, and VII. North limb quite faint, and contacts therefore made with upper wire (a) of pair by moving micrometer 

backward each time. 

16. Set B in R. A. and Bs and B3 in N. P. D. 
19.21. R. A. over D3 and D3 only. 

31 .32.33. Bisections at sets B and D. 

34. R. A. over wires Di and C$. 

47.49. Bisections at sets B and D. 



OBSEEVATIONS WITH THE TRANSIT CIBCLE. 



33 



B 

3 



I 

2 

3 
4 

5 

6 

8 
9 

10 

II 

12 

13 
U 

15 
i6 

17 
i8 

20 
21 

22 

23 

24 

25 
26 

27 
2S 

29 

30 
31 



Circle 
Division. 



MICROSCOPE MICROMS. 



I. 



II. 



35 
36 

37 
38 
39 



40 

41 
42 

43 
44 

45 
46 

47 
48 
49 



r. 



III. 



19 44 
22 36 

353 o 

10 20 

39 M 

307 26 
38 44 

348 52 
346 22 

322 34 

11 12 
324 8 I 
357 56 ' 



II 


n 


II 


9.2 

6.8 


6.2 
4.1 


4.8 

1.6 


10.2 

8.3 
8.2 


6.0 

6.3 
5.6 


5.5 
5.2 
2.9 



7.6 

5.3 

12.0 

15. 7 
9.5 

14.8 

5.5 
3.0 



37 36 I 10 8.1 
310 16 3.5 



6.0 

2.4 

9.0 

12.0 

5.8 

II. 8 

3-3 
28.3 

6.0 
2.2 



19 22 ' 
18 50 

5 52 



12 48 

12 48 

203 30 

162 18 

52 52 

211 6 

295 46 

23 30 

61 26 

293 8 



8.3 6.8 
9 15.8 13.3 



5.4 
21.3 

6.7 
9.6 

5.4 

10. o 

i.o 

28.0 

3.7 
1.4 

4.4 
II. 5 



2.6 29.6 I 28.7 



32 314 42 

33 314 42 
34 



18 14 
18 46 
47 10 
10 20 
22 20 



162 
328 

295 
156 

3U 

38 
328 

274 
314 



18 
48 

46 
22 

24 
46 

20 

48 

42- 



I 



7.7 

7.7 
2.7 

3.1 
5.7 

3.5 
2.8 

8.8 

7.8 

5.2 

* 

5.7 
5.7 



10. cr 

3.7 
6.9 

5.4 
7.0 

6.3 

5.8 

4.0 
4.0 

4.7 
6.6 

4.8 

2.7 
4.7 



5.2 

5.2 

3.1 

2.7 
3.6 

5.2 
0.6 
5.0 
6.3 
3.5 



2.1 
2.1 
2.1 

0.3 I 
0.5 I 

3-2 , 

29.7 
2.8 

3.2 
3.2 



I 



3.3 


3.5 ' 


3.3 


3.5 


6.4 


6.0 


0.7 


26.3 


4.1 


1.6 


1.8 


I.I 


3.9 


1.8 


6.3 


3.7 


2.7 


2.1 



IV. 



II 

5.0 
2.7 

6.1 
6.1 

4.5 

5.7 

0.3 

7.3 
10. o 

5.2 

10.2 

3.3 
28.2 

5.0 
2.7 

5.8 
12.0 

• 

29. 5 



3.5 

3.5 
29.2 
28.4 

I.I 

0.5 
0.4 
3.1 
3.9 
3.7 

3.6 
3.6 



2.1 
2.9 

1.2 
4.0 

2.3 
2.0 
2.2 



2.1 
1.6 

0.4 
2.1 

3-0 
1.0 

1.3 



TELESCOPE MICROMETER. 



Rev. I. 



1.8 
2.3 

3.0 
0.5 

0.6 

2.2 

3.0 

1.5 
2.0 



22 
27 
30 
23 
27 

19 
22 

25 
22 

26 

24 
21 

20 

25 
29 

23 
23 

21 



22 

24 
23 

25 
21 



No. Barom. 



External 
Therm. 



Attached 
Therm. 



m. 



22 

21 



8.6 


27 


0.2 


29 


3.5 


22 


3.0 


23 


3.5 


27 



25 
29 

27 
26 

23 
27 
27 
23 

22 




721 
320 
232 
140 

148 
822 

• • 

625 



842 
415 



202 
182 

458 



260 



25 
26 

20 


145 
946 

681 


22 


• • 


25 


001 



478 

200 



010 



341 



770 

820 



481 



630 



620 I 
269 
182 
102 

200 

852 

422 

532 



814 

• • 

200 

438 
159 

449 



525 



270 

782 
518 



320 
090 

564 



086 



910 



035 

742 

998 

398 
220 

000 



560 
130 

• ■ 

862 



I 



369 
950 

738 
658 

lOI 

240 

471 
462 

146 
636 



640 



168 
238 



132 
750 



569 
141 

080 
979 

215 
760 

540 

448 
020 

720 

• • 

116 
665 



338 
814 



912 

815 



"5 
918 

548 

• • 

980 

376 
149 



on 
565 
384 



656 
536 

990 i 
200 

315 
400 
112 
748 
515 



5. 




546 
129 
056 
942 

159 



430 



700 
455 



862 



n 

II 
II 
II 
II 
II 



9 
9 
9 
9 
9 



Apparent 
Zenith Dis- 
tance, South. 



II. o 
II. o 
II. o 
II. o 
II. o 

II. o 
II. o 
II. o 

10.4 
10.4 

10.4 
10.4 



251 

814 ] 10.4 

075 



735 
770 

• • 

096 

826 
548 



10 


4 


10 


4 


10 


4 


10 


4 


10 


.4 



10.4 
10.4 
10.4 
10.4 



962 10.4 



340 

202 



10.4 
10.4 



II. o 
II. o 



106 

540 , II. o 

255 I II. o 

830 ; II. O 



630 

600 



380 



920 

558 



10.7 
10.7 

10.7 
10.7 

10.7 
10.6 
10.6 
10.6 
10.6 



// 



I 

g 

C/3 



19 48 41-7 

22 38 56.5 

353 2 14.0; 

10 34 2.5I 

39 17 3-7 

307 31 1.5 
38 48 I I. 3 

348 55 23.4 

346 26 6.2 

322 37 17. I 



II 
324 
357 



15 31-4 
12 31.8 

58 54.4 



37 39 28.0 
310 18 34.5 

19 25 56.9 
18 54 21. I 

5 56 26.6 



12 52 17.7 

12 51 49.5 

203 33 53-6 

162 21 24.2 

52 56 28.5 

211 9 33.3 
295 49 6.0 

23 34 40.5 
61 32 6.1 

293 II 34.8 

314 46 15.0 
314 46 33.4 



18 17 1.9. 
18 48 36. 4I 

47 14 11-5! 
10 24 2.2; 

22 22 51.0 

162 21 23.6 
328 50 25.81 

295 49 3.7 
156 25 17.9 

344 28 2.3 

38 48 58.0 

328 23 3.1 

274 51 55.5 
314 46 13.8 



For summary of the elements of reduction set page 3. 



363 
348 
326 

338 



Refraction. 


/ 


II 


-+- 


20.1 


-h 


23.1 


— 


6.7 


-h 


10. 1 


-h 


45.2 



Apparent N. 
P. Distance. 



o I II 

70 55 23.0 
73 45 40.8 
44 8 28.5 
61 30 33.8 
90 24 10. I 



lA 


• 


s 


W 


» 


C 


c 





c« 






•rf 


V 


"i 


u 


u 


«A 


V. 







S 


u 




// 



— I 



417 
413 



330 



13.9 
45.7 

II. I 

13.7 
43.5 

II. 3 
41.0 

2.0 



-H 43.5 
— I 6.2 



- 3.0 
4- 0.6 

— 0.2 

- 0.3 

— 0.9 



I 



358 36 8.8 

89 55 18.2 :-i- 
40 I 33.5 

37 32 13.7 
13 43 54.8 



4- 

I 

4- 



19.5 
18.9 

5.7 



I 



62 22 3.9 
15 18 12.0 
49 5 13.6 

88 46 32.7 
I 23 49.5 

70 32 37.6 
70 I 1.2 



H- 0.6 
1.6 
2.2 
I.I 
0.5 



+ 



4- 0.6 
— 0.4 

4- 0.8 



- 2.6 



2.8 
2.9 



57 2 53.5 ,- o.i 



446 



4- 12.7 

4- 12.7 

+ 24.7 

— 18.0 

+ I 15. I 



471 - 

4- 



493 






391 
368 

• • 

347 






14- 
4- 



34-3 

I 57.2 

24.9 

1 45.1 

2 12.8 

57.7 
57.7 



18.5 ' 
19.0 I 
0.2 
10.2 

22.8 I 



. . - 17.8 
410 - 34.1 



63 58 51.6 
63 58 23.4 
27 32 2.9 
68 45 15.0 
104 4 4.8 

19 56 13.6 
346 53 30.0 

74 41 26.6 
112 40 12.4 
344 15 43.2 

•5 51 38.5 
5 51 56.9 



69 23 41.6 
69 55 16.6 
98 21 32.9 
61 30 33.6 
73 29 35.0 

68 45 15.4 
19 56 13.0 



4- 



3.1 
3.1 

1.5 

0.7 

2.6 

3.1 
0.5 
0.7 
0.4 
1.6 



—20.5 
— 2.1 



- 2.7 

- 2.8 

- 2.5 

- 0.9 

- 1.2 

4- 0.8 

- 3.5 



- I 55.8 j 346 53 29.1 - 1.3 

— 24.6 ! 74 41 27.9 4- 1.4 



427 - 

. . 14- 
440 - 



450 



15.7 
45.5 
34.9 
47.1 
57.2 



35 34 7.8 

89 56 4.7 

19 28 49.4 

325 48*29.6 

5 51 37.8 



— 0.9 

- 1.5 

— 2.1 

- 4.2 
—20.7 



MOON'S— 



No. 




Parallax. 


15 


1 II 
- 34 M.3 



Semi-diam. 



/' 



4- 15 22.9 



5 



u 



0B8EBVATI0NS WITH THE TRANSIT CIRCLE. 



DATE. ^ 

E 



1868. 

May 21 



22 



24 



I 
2 

3 

4 
5 

6 

7 

5 

9 
10 

II 
12 

13 
M 
15 

16 

17 

I IS 

i '"^ 

I 20 

21 
22 

I ni 

I "-^ 
I 24 

25 
26 

' 27 

, 28 

. 29 
30 

31 
32 

33 

34 

35 
36 

37 



OBJECT. 



32'^ Camelopardalis . 
Polaris, S. P., (R.) 
Polaris, S. P. . 
; « Virginis, (R.) . 
C Virginis, (R.) . 

V Ursae Majoris . 

50 Cassiopcx, S. P. . 

■ a Draconis, (R.) . 

I (I Bootis .... 

€ Bootis .... 
I 

li Ursse Minoris, (R.) 

I 3 Bootis .... 

48 Cephei, S. P. . 

3 Librae .... 

Juno .... 

C Ursac Minoris . 
fi Scorpii .... 

Saturn 1, S. 

Saturn II, N. . 

Polaris .... 
ft Arictis .... 

Sun I, S, 

Sun II, N. . . . 
a Aurigae 

f'i Tauri .... 
<J Orionis 

a Orionis 

Venus, S. . . . 
I Venus, N, . 
a Canis Minoris 
/i Corvi .... 

21 Cassiopca;, S. P. . 
32' Camelopard., (R.) 
32'^ Camelopard., (R.) 

Polaris, S. P. . 
a Virginis, (R.) . 
C Virginis, (R.) . 



25 



38 T/ Ursae Majoris, (R.) 

39 50 Cassiopeae, S. P. . 

40 a Draconis . 

41 I a Bootis .... 

42 ' Bootis .... 

43 5 Ursae Minoris . 

44 I Polaris .... 

45 ' .i Arietis .... 

46 ' a Arietis .... 

47 [ y Ceti .... 

48 I a Ceti .... 
I 

49 J Sun I, S. . 

50 i Sun II, N. . . . 



t 


* 


V 


tc 


(A 









N. 


4 


N. 


4 


N. 


4 


N. 


3 


N. 


3 


N. 


2 


N. 


2 


N. 


3 


N. 


3 


N. 


2.3 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



N. 
N. 

N. 
N. 

N. 

N. 
N. 
N. 

N. 
A. 
A. 

A. 
A. 
A. 
A. 
A. 

A. 
A. 
A. 
A. 
A. 

A. 
A. 
A. 
A. 
A. 
A. 

A. 
A. 
A. 
A. 
A. 
A. 

N. 
N. 

N. 
N. 

N. 

N. 
N. 



II. 



I 



III.1IV. V 



VI. .VII. VIII IX. Mean wire. Inst. 



23.2 



43-0 



I 



32.0 7.543 
14.5117.018.624.826. 
58.2- 0.7' 2.3 6.3I 8. 



; I 
2. 7i42. 757-4, 22.0 

' . . in. 012. 025.0 

5 22 . o' 

929.035.236.7 

310. 4.12. 4 . 



39-2 



2 

3 

4 

4 
2 

3 
I 

I 

2 

2 

3 

3 

3 
I 

I 
3 

2 
2 

• 

3 

5 



13.2 17.1 14.329. 1 32. 

3.o|54.7'49-S30.223. 

32.438.241.856.3 I. 

37.6,40.3141.948.5.50. 
II. 7 14.8 16.523.325. 



2 35V44-947.45I.2 

217. 157. 752. 744. 8 
i! 6.020.3 24.0,30. 1 
852.9'59.4 0.9 3.7 

727.8,34 9l36.5'39.3 



33-743. 249. 5 4.5 12. 
54.5 58.0' 0.0' 8.1 10. 
45. 433. 8.26. 959. i|5o. 

54.857-258.9 5-1 7 
36.438.840.1 . . 



vn. s. s. 

48 22.(/)+ 2.44 
10 46. 68 —II. So 
10 45.05 — 9.80 
18 26. 88 — 0.21 
28 10.39 ~ o.^5 

42 32.17 f 0.06 

52 23.69— 0.91 

I 1.13+ 0.45 

9 50.67 — o. 14 

39 25.61*- o.io 



Clock 
appar'nt. 

s. 



10.47 
10.49 



Clock 
adopted. 

' s. 

— 10.46 

— 10.46 

— 10.46 

— 10.46 

— 10.46 

1 , 

— 10.46 

^—10.46 

— 10.46 
'--10.45 
-10.45 



Apparent R. 
Ascension. 



"c 2 

rt — 

— 'J 

^ it 

' ... ■^ 



. . 36.0 . . 
13.321.823.7127.0 
41. I 13.0 6.2.54.7 

9.1 15.2 17. 019. 5 

.... I12.8 



I 



I.li 7.5! 9.1 



54. r 3.914.024.4.44.250.9: 3.7 
45.848.650.356.858 
23.826.628.2 . . . 

33-735.938.0 

37.0 3.025.0 
4i.i;44.045.652.254. 



. . 145.546.9 
40.1I42.4 . 

48.o'i2.o . 

56.5 3-3 4.9 7-6' 



II. 8 
49.8 



41.043.445.1 51. 754. 2;56. 3 
56. 2,59. i| 0.5, 7.1 9-4II.5 
48.452.254.21 3.2' 6.0' 8.8 



2.4 4.6 7.1 
18.1 19.622.5 
17.8 19. 7123. 7 



4 
I 



2 

4 
4 

3 



52.8 
13.5 



59-3 



16. 1 



1.8 



. 157. 7I 4-6 6.9 9.3'i6.i . . '20. 8 



17.623.825.827.8^34.035.638.1 



51 i9.6(}-f 

57 10.79- 

3 50.03- 

10 7.10 — 

31 48.42- 

I 
49 4.02'4- 

57 58.8s;- 

3 36.77- 

3 38.02;- 

10 25.304- 

59 54-39- 

57 53-98- 

o 9-33- 

7 6.00 -h 

18 6.89 — 

25 25.81 - 



h. m. s. 

12 48 14.97 -h 
I 10 24.42 ■+■ 
I 10 24.79 -^ 

13 18 16.21 — 
13 27 59. 78 -r 

13 42 21.77 f 
I 52 12.32 -h 

14 I 51.12 + 
14 9 40. oS -t- 
14 39 15.06 -h 



0.86 . . —10.45 

0.03 . . —10.45 ' 

1.25 . . —10.45 . 

0.26—10.46 —10.45 ' 

0.22 . —10.45 



• • r 



■ ■ 



. . 1-10.45 
—10.49 — ip.45 

, . —10.45 
10.45 
10.46 
10.46 



10.45 
10.45 
10.44 
10.44 
10.44 



0.92 
0.30 
0.30 
0,10 

8.99 

0.12 —10.38 



0.13 
0.13 
0.03 
0.09 
0.18 



10.52 
10.47 ' 



26.5 



55.1 



29.2 



3.5 9.5 II. 613. 619. 521. 523. 9 48 II. 58- 0.18 -10.41 



14 51 10.10 — 

14 57 0.28 -»- 

3 3 38.33-^ 

15 9 56.39 

15 31 37.75| 

15 48 54.49- 

15 57 48.13 + 

16 3 26.02 

16 3 27.27 
I 10 23. S3 — 

I 59 43.8ij- 

3 57 43.40' 

3 59 58.75' 

5 6 55-5^- 

5 17 56.36 + 

5 25 15.19-^ 



s. 
0.70 
0.5!^ 
0.<): 
O . t >3 
0.05 

o . 02 
0.31 

O. Ut 

o.o-^ 
0.03 

0.24 

0.40 

O.Of> 



0.0c 

0.0<) 



0.41 
0.07 



0.05 

0.0: 

O.OI 



« a I • • 



31. 037. 539-641.9 



— 10.44 5 48 0.96— 0.03 



41.843.446.0 32 33.65— 0.18— 10.24 I— 10.43 



48.650.253.0 27 39.72— 0.28 — 10.36 



45.640.5 17.7 10.3 2.540.134.225.0 37 10. II— I. of) 



— 10.41 



7 32 23.04 — 0.21 

12 27 29.03!+ O.OI 



. . I 
31.0 8.542.522.0 



• ■ • ■ 



. I . . 



• ■ , • • 



58.5 0.5 2.0 8.2 10.2 12. 018. 320.0 



. —10.40 036.58.65+ 0.05 



. I 



10 44.25- 9.47 



— 10.40 I 1024.38— O.I'^ 



3 

4 

3 

2.3 
2 

2 
2 



12.7 16.7 19.428. 

3.054.449.329. 

32.3:38.2142.1 56. 

37.640.642. 1 148. 



22.4 28 10.23 — o.ii 



9'44.I46.4 50.5' 



41.0147.650. 
22.1 28.454. 



34.2 
II. 6 



17.920.622.328. 
40.743.645.1 51. 
25.327.829.335. 
20.2 



531.634. 

723. i|i6. 7157.4,52. 2 

5 1. 1, 5.8I20.624.2 
550.652.859.4 i.o 
954.257.6 1.21 7.6 

6 3. 211. 437. 744. 455.0 



43.5 
30.2 

3.7 
14.5 



52.5 4.0 6.050.0 
831.033.1,39.741.344.0 

754. 056. 2| 2.9 4.5 7.4 

3'»7.5'39.4,45. 3,47.249.6 
22. 8 28.4 30. 5 32. 5'34. 8 36. 5 42. 2 44. 8 



12.6 
25.6 



42 31.65 + 0.23 . . 

23.26— 0.93 

I 1.22+ 0.26 

9 50.70— 0.13— 10.52 

20 54.31 + o. of) 

3.16 + 0.73 . . 



— 10.4Q , 13 27 59.72. 0.<J<^ 



, — 10.40 
1 — 10.40 
I— 10.40 
-10.40 
— 10.40 
I— 10.40 



13 42 21.48 — 
I 52 11.93 — 

14 o 51. oS + 
14 9 40.17; + 
14 20 43.97 + 
14 27 S3. 49 + o.CM 



o. 
o. 
o. 
o. 
o. 



13 

14 

13 
10 



46.349.150.757.4,59.5, 1.7 8.2 9.7 
4.7 6.6111.013.1115.417.4,19.624.0 



10 30.18 + 7.02' 

47 30.97— o.oS — 9.98 

59 54.01 — 0.07 — 9.98 

36 37.41 — 0.13 . . 

55 32.52— 0.13— 10.07 I — 






9 59.47,- 0.08; 
12 15.27— 0.08 



10.02 
10.01 
10.01 
10.01 
10.01 

10.00 
10.00 



I 10 27.18 + 0.7) 

I 4X 20. 88'— 0.02 

1 59 43.93 — 0.02 

2 36 27.27 + 0.02 
2 55 22.36 + 0.04 



4 9 49-39 
4 12 5.19 



1 .2. II. 13. 16.32. Bisections at sets B and D|. 
15. Wire A used. 

25. Seems five rev. wrong in N. P. D. 
31. N. P. D. seems all wrong. 
33.34. Bisections half way between D3 and VI. 

44. Observed over wires C4, Di, Da; in R. A. double weight given to C4. 



OBSERVATIONS WITH THE TRANSIT CIRCLE, 



35 



J , Circle 
3 , Division. 

Z ' 



MICROSCOPE MICROMS. 



3 ' 

w 

6 

. i 

' i 
s 

9 

10 

II 

12 
13 
M 
15 

i^ 

IS 

20 
21 

22 I 

23 ' 

24! 

2; 

26 



1^ 



2i) 
50 

31 
32 

33 
34' 

J? 

37 i 

3^ 

}') 
40 

41 

42 

43 

44 
45 
46 

47 

4^ 

40 



No. 



314 42 
232 26 

307 28 
130 36 
141 10 

348 52 
290 40 
206 

iS 

II 



2 
58 
12 



215 44 

357 56 
296 6 

47 42 

40 48 

320 38 
5S 16 



57 

57 

310 

16 



24 

24 

14 
o 



iS 32 
i3 o 

10 20 



31 26 
13 18 

13 18 
33 16 
(.1 28 

293 8 
225 10 
225 10 

130 36 



191 2 

2»)0 40 

333 50 

iS 53 

322 34 

310 16 
18 40 
16 o 
8 
16 



36 



■>:> 



iS o i 

17 28 I 



TELESCOPE MICROMETER. 



I. 


II. 


r. 


II 


• // 




4.7 


2.2 




4.0 


4.7 




3.5 


2.9 




2.7 


2.1 




6.1 


4.6 


« 


5.8 


2.2 




4.0 


2.8 




0.1 


0.7 




5.4 


2.9 




4.3 


1.9 




1.8 


3.1 




5.6 


2.0 




3.6 


1.8 




4.5 


3.0 




3.9 


2.2 




2.5 


29.6 




5.5 


4.8 




7.4 


4.9 




7.4 


4.9 


10 


5.8 


3.9 


10 


II. 9 


8.6 


10 


II. 6 


6.7 


10 


14.2 


10.6 




II. 


8.4 




10.9 


6.7 


10 


9.4 


5.9 


10 


9.4 


5.9 


10 


12.5 


10. 


10 


8.4 


6.3 


10 


9.0 


7.0 


10 


3.0 


2.6 


10 


3.0 


2.6 




5.3 


4.5 


10 


15. 1 


15.0 


10 


8.0 


6.3 




6.5 


3.8 


10 


8.3 


5.0 




12.9 


9-5 


IQ 


5.8 


4.5 


10 


8.4 


6.4 




9.3 


7.0 



7.7 
7.9 

9.9 

10.2 



5.4 
5.7 

7.4 
7.0 



III. 


IV. 


II 


II 


1.3 


2.0 


3.2 


2.0 


1.8 


2.4 


29.4 


29.0 


1.7 


1.3 


1.8 


2.5 


2.4 


3.5 


28.8 


27.1 


1.3 


1.9 


29.5 


0.6 


2.3 


0.0 


I.O 


1.5 


1.7 


2.7 


0.0 


1.2 


0.1 


0.3 


0.0 


0.4 


2.2 


2.9 


2.2 


3.7 


2.2 


3.7 


4.3 


5.1 


6.8 


7.5 


6.0 


6.6 


10.3 


9-3 


6.1 


7.0 


3-5 


5.8 


3.5 


4.5 


3.5 


4.5 


7.0 


6.9 


2.9 


2.5 


5.6 


6.5 


1.3 


29.0 


1.3 


29.0 


1.4 


29. 5 


12. 1 


8.1 


5.2 


5.6 


3.2 


2.4 


2.2 


2.1 


8.5 


8.0 


2.6 


3.9 


2.9 


4-7 


4.5 


5.1 


1.8 


3.7 


2.2 


3.0 


5.5 


5.4 


4.1 


4.5 



Harom. 


External 
Therm. 


Attached 
Therm. 


in. 









Rev. 



21 
27 
27 
27 
32 

26 
28 
21 

27 
25 

25 

28 

23 
22 

25 

22 
21 

26 

27 
20 

25 

19 
17 

28 



21 

24 
26 

24 
26 

24 
25 
24 

27 



27 

28 

25 
27 

26 

28 

24 
26 
21 

27 

24 
22 



I. 



440 



339 
040 

245 
176 

• • 

220 



388 

• • 

190 
710 



225 

152 
206 

• • 

975 
879 

369 



939 

744 

856 

970 



908 

174 
611 

129 
200 



092 



212 



2. 



344 

• • 

365 
411 
007 

149 
072 

• • 

175 



443 
082 

068 

661 

934 

181 
150 



309 
894 

908 
411 



020 



399 



696 
790 
811 

990 



895 
185 
426 
070 

163 



098 



816 
221 



3. 



331 
384 



700 

• • 

542 



893 



229 
366 



273 



515 



4. 



392 

370 
410 

290 

892 

084 

134 
600 

025 



260 

965 

045 
586 

872 

170 
030 



290 
909 
813 



920 
840 

243 



806 
565 
764 

026 
216 

345 
100 



899 
161 
210 
900 

070 

850 

m m 

009 
720 



445 




314 



001 



806 

■ ■ 

559 
630 

816 



990 



859 
156 

325 

889 

041 
861 

• • 

963 
876 



459 



9-7 
9-7 

9-7 



9 
9 
9 
9 
9 

9 
9 
9 



7 
7 
7 
7 
6 

6 
6 
6 



9.6 



9.6 
9.6 
9.6 
9.6 



"3 

II. 3 

11.3 
II. 3 

11-3 

11-3 
II. 3 



Apparent 
Zenith Dis- 
tance, South. 



// 



314 46 32.1 
232 29 0.8 
307 30 59.7 
130 39 2.4 
141 II 49.0 

348 55 18.8 
290 42 46.3 
206 6 30.2 

19 I 3-7 
II 15 28.8 

215 47 31.3 
357 58 50.4 
296 10 5.1 

47 46 12.8 
40 53 57.3 

320 42 21.3 
58 18 34.4 
57 27 16.7 
57 26 58.8 

310 18 36.0 
16 3 17.0 

18 36 56.9 
18 5 13.7 

10 22 45.3 




31 30 27 
13 21 34 
13 21 5 

33 19 34 
61 31 5 

293 II 31 
225 13 30 

225 13 44 



130 39 2.8 



191 4 40.7 

290 42 42.2 

333 53 29.1 

19 I 3-2 

322 37 12.4 

310 18 36.5 

18 43 45.1 

16 3 17.4 
36 12 21.5 
35 18 52.6 

18 3 45.5 

17 32 12.3 



For summary of the elements of reduction see pa^e 3. 



Apparent N. 
P. Distance. 



480 

• ■ 

484 

• • 

488 



494 



413 
390 



316 
325 



320 

• • 

318 
326 
407 

406 



412 



421 
424 

• • 

430 

433 

428 
421 

398 

388 



360 



— II. 2 

— 2 29.8 
+ 28.0 

H- 19.7 

-I- II. 4 



+ 



-I- 
+ 



41. 1 

2.0 

56.2 

3.0 
49.6 

46.9 
32.5 
29.6 
29.5 
6.2 

16. 1 

18.6 
18.0 

10. o 



+ 


33.8 


-h 


13. 1 


-f 


13. 1 


+ 


36.2 


-h 


I 43.1 


^_ 


2 10.2 


+ 


56.5 


-h 


56.6 



- I 5.4 



// 



5 51 56.1 
358 36 6.5 

358 36 7-1 
100 28 24.9 

89755 17.9 

40 I 28.8 
341 46 37.7 
35 59 23.0 
70 7 44.6 
62 22 1.4 



15 

49 

347 



18 8.8 

5 9.6 
14 30.1 



98 53 37.0 

92 I 10. I 

II 47 55.6 

109 26 28.1 

108 35 7.5 

108 34 49-5 

I 23 51.0 

67 9 54.3 

69 43 36.7 

69 II 56.9 

61 29 16.5 



c o 

rt • - 

"" o 



I 



II 

- 2.4 

- 0.7 

— O.I 

-f 0.7 

+ 1.7 

- 1.4 
-h 1.4 

— 2.8 
¥ 0.9 

— 0.8 

— 2. 1 

— 1.8 

— i.l I 

»> o ' 

- 2.4 

— 1.2 ' 

— 0.6 , 

— 0.8 I 

— 0.8 I 

— 1.9! 

— I.I 

— 2.8 

- 2.7 



82 37 22.5 


1 
1.7 


64 28 8.8 


- 3.4 


64 27 39.8 


- 3.4 


84 26 31.5 


— I.I 


112 39 10. 


1 
1 



344 15 42.4 

5 51 53.9 
5 51 40.6 



-f- 1.0 

- 4.5 

-17.8 



100 28 23.8 — 0.4 



4- 


II. I 
2 27.9 

27.7 
19.4 


40 I 
341 46 

24 59 
70 7 


29.4 

35.5 
22.6 

43.8 


+ 


0.5 
0.7 

3.0 
0.3 


— 


43.1 


13 42 


50.5 




2.9 


4- 
-h 
+ 
-f 


I 6.4 
19. 1 
16.2 
41.0 
39.6 


I 23 

69 50 

67 9 

87 19 
86 25 


51.3 

25.4 
54.8 

23.7 
53.4 


Z 


2.0 
0.8 

0.5 
3.3 
1.5 


4- 
+ 


18. I 
17.5 


69 10 
68 38 


24.8 
51.0 


— 


2.7 
2.6 






— _ _ 






— 



No. 



MOON' 



Parallax. 



Scmi-diam. 



// 



// 



36 



0B8EBVATI0NS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
>iay 25 

36 



27 



29 



30 



V 
JO 

B 

3 

Z 



I 

2 

3 

4 

5 
6 

7 

8 

9 
10 

II 

12 

13 

14 

15 
16 

17 

18 

19 
20 

21 

22 

23 

24 

25 
26 

27 

28 

29 
30 

31 
32 
33 

34 

35 
36 

37 
38 
39 

40 

41 
42 
43 
44 
45 

46 
47 

48 
49 



OBJECT. 



Polaris 
a Ceti 

Sun I, N. . 

Sun II, S. . 
fi Tauri ... 
6 Ononis 

Venus I, S. 

Venus N. . 
a Canis Minoris 
K Draconis . 
a Cassiopeae, S. P. 
a^ Canum Venat. 

a'^ Canum Venat. 
H Virginis 

Polaris, S. P. . 

Comes Polaris.S.P 
a Virginis 



A CassiopesE, S. P. 

C Virginis 

7 Ursac Majoris . 

tf Bootis . 

50 Cassiopese, S. P. 

a Draconis . 

a Bootis . 

I Cassiopeac, S. P. 

I Cassiop.Comes.S. 

5 Ursae Minoris 



e Bootis . 
a^ Librae . 
a« Librae 
/3 Bootis . 
(i Libne . 
Cybele . 

Juno 
a Serpentis . 
Urania . 
Saturn I 
Saturn II . 
Anonymous 

Sun I, N. . 

Sun II, S. . 
Venus I, N. C. 
Venus S., C. 
a Canis Minoris 
Moon I, N. 

Sun I, S. 
Sun II, N. . 

a Canis Majoris 
a Geminorum 



> 
I/} 

O 



A. 
A. 






3 
3 



A. ; 2 
A. ' I 

A. I 1.2 
A.' 4 
A. 1 3 



A. I 

A. 
A. 
A. 
A. 
A. 

A. 
A. 
A. 
A. 
A. 

A. 
A. 
A. 
A. 
A. 

A. 
A. 
A. 
A. 
A. 
A. 

A, 
A. 
A. 
A. 
A. 
A. 

E. 
E. 
E. 
E. 
E. 
E. 

A. 
A. 

E. 
E. 



3 
5 
5 
5 

5 
5 
4 



3 
4 
3 
4 
4 

3 
3 
3 
3 
3 



3 
4 



SECONDS OF TRANSITS OVERWIRES. 



I. 



H. 



19.9122. 5 



III. 



IV. 



V. VI. 



VII. 



VIII 



45.0 7-530.0 
24.230.332.4 



. 57. 



5.0, 7.6 



I2.8II5 
18.621 



.4 



9. 

I. 

17. 



.523 



54.0 
34.4 



IX. Mean wire. 



CORRECTIONS. 



Inst. 



17.01 . . , . . 
40.542.0.44.7 



m. s. I s. 
10 31.224- 4.75 
55 32.32 — 0.06 



I Clock 
.appar'nt. 

I 

s. 

9.91 



Clock 
adopted. 



0.0 2.2i 4.21 6.4I . . I . . 
i6.o!i8.il20.2 26.9 28.5 3i.2> 



3.8 6.31 8.3 
23.025.027.1 
30.032.334.3 



20.5 



34.1 



23.0 



24.7 



10.6 
33.2 
41.3 



34.837.4, 
43.O145.7' 



14 1.96, 
16 18.10; 
18 6.101 

25 25.08, 

26 32.23, 



0.03 
0.03 

O.OI 

0.06 
0.02 



- 9 

- 9 



30.732.8I35.041.242.5I45.3 

24.5|30.037.3i 
57.7 55.050.31 



45.048.1 
6.3I 8.8 



29.626.7,15.812.31 8,7 



50.01 . 



. . 11.2113. i'i6. 6' 



56.5 
10.5 

30.5 



59. 
16. 

5. 



11 1.9 4.41 7.1 
5 i8.620.6'26.7 
o 



1.0133.0 



44.0[i7.5 

12. 8| . . 



28.2131.0 



12.0 

57-4 

12.3 

22.4 

2.0 

31.3 
37.0 



0.5 
L.4 



4.9 

0.0 
16.3 
25.026.7 

53.648.7 



42. 

7. 



18.8I28.2 
I 



37.2 

39-6 

54.047.4 

55.2149 
10. 1 21.4 



045 



10.9 14.0 
22.825.5 
34.237.0 
53-757.1 



53.8 
3.1 



56.4 
6.0 



41. 1 
41.2 

43.6 
o 
27.6 



33- 
29. 

55- 
47. 
33- 
34. 
53. 



34.4,35.9138.5' 



6 36. 831. 1 13. 
5 9.611.5I17. 

31*5,34.5144. 

35. 4:37. 4144. 
2122. 1116. 1156. 



3, 9.oi 1.3 
8 19.5 21.91 
046.5I50.4 
0145.5,48.4 
45i.i'43.2. 



I 



37.6140.0 
45.648.1 



43-2 

53.1 
9.2 

33.7 



24.3 



116.3 



56.0 
12.2 
36.6 



27.1 

8.6 
19.2 



15.7 
27.1 

38.4 

59.1 
58.0 

7.6 

41.8 
49.6 
13.5 
59.1 
0.3 
47.8 

57.8 
14.0 

38.4 



22.6 



0.5 
50.0 

28.0 

29.5 

2.2 



5.3 
52.1 
22.7 
o 
I 



24 
II. 



19. 

58. 

17. 
18. 

37. 



7 
4 

13 



15.6118. 1 
! 4-61 7-5 



47.649.852.0157.5 

• ■ 

16. 



28.7 



25. 0127. 2134 



55. 
20. 



9.9'i2.6 



5|23. 

4I o. 

4|I2. 

8I13. 

o|43. 

1 136. 

• '45. 
2156. 



6.4 
15.5 



8.4|M 
17.7123 



22. 
16. 

25. 



5'29.4. 

2| 3.01 

7 . . 
7 . . 
2154. 5' 

0I38.8 

5| . ., 

859.5! 
826.2 

2!i8.6 

628.0 



32 32.86 — 0.06 — 9 
28 0.54I+ 0.26 

33 12.24 — 0.28 
50 o.67j-f O.OI 

50 1. 80' 4- o.oij 
3 i8.58|— 0.07I- 
10 42.50— 4.94, 
10 12.00'— 4.94 
18 26.07 — 0.08 - 

21 36.83 — 0.40 
28 9.62 — 0.07 — 9 
42 31.39!+ 0.05 
48 35-32— 0.04- 
52 22.49— 0.47 

I 
I 0.40-1- o. 16 

9 49.91I— 0.03 - 

18 22,85,- 0.381 

18 24.18'— 0.38 

28 2.30,-1- 0.40 



9.91 - 

9.78 - 

.85 - 

■ 

.79 - 

.84 — 



39 24.92 
43 35.49 



O.OI 

— 0.09' 



43 46.85 — 0.09 — 

57 9931+- 0.02 
10 6.29 — o.oS — 
24 15.64I— o.ck;i 



59-3 1.8 



18. 3120.6123.0 



3.5 



7.7 



. 4.6... 0.8,.. 



51.3 

4.0 
20.3 
45.1 



22.6124.8 
147.349.4 



35.3 



10. 913. 1 
21.0I27.3 



0.2 



3.3' . . 



6.4 8.515.0116.7 



37-4 

15-3 
29.5 



20.0126.1I28.230.3 



39-5 

17.6 
31-6 



31.3 
56.4 

• • 

41.0 

45.8 

22.3 
38.2 

36.8 
9.616.919.1121.4 28.8 



33.0 
58.1 

• • 

42.6 
47.4 



8.1 

19.3 

35.5 

0.7 

• • 

45.1 
50.2 



23.6,26.5 
40.o!42.6 

38.5140.1 
30.533-5 



27 49-71 
37 57-86 
59 18.281 

2 3.43; 

2 4.57' 
13 55.65 

18 6.31 
20 22.54 
29 47.30 

• • • ■ 

32 32.84I 
39 37.301 



0.07 
0.06 
o.io 
0.09 
0.09 
0.07 

0.05 
0.05 
0.04 

• • 

0.07 
0.06 



26 13.204- 0.02' 
28 29.52 + 0.02 

39 28.194- 0.10 
26 19. 10; 4- 0.07, 



.80 

-85 



59 



9.90 

9-93 
9.80 

9.86 



s. 

9.85 
9.85 

9.85 

9.85 
9.85 
9.85 
9.84 



9.84 
9.84 
9.84 
9.84 

9.84 
9.84 
9.84 
9.84 
9.84 

9.84 
9.84 
9.84 
9.84 
9.84 

9.84 
9.84 
9.84 

9.84 
9.84 

9.84 

9.84 

9.84 

9.84 
9.84 

9-84 



Apparent R. 
Ascension. 



C8 .Z. 



W -J 



h. m. s. ' 

1 10 26.12' 

2 55 22.41 



s. 

— 0.90 
4- o.o-; 



4 

4 

5 

•5 

7 



13 
16 

17 

25 
26 



52.08 

8.22 

56.24 

15.17 
22.37 



— CC/' 

— 0.(12 

i- 1. 13 



7 32 22.96 
12 27 50.96 

O 33 2.12 
12 49 50.841 



0.2^> 
0.06 
O. lO 
1.2^ 



12 49 51.97— 0.12 

13 3 8.674- 0.06 

I 10 27.72 + 0.3Q 

I 9 57.22; . . 

13 18 16.15— 0.05 

I 21 26.59 — 0,09 

^3 ^ 59.71 + O.OI 

13 42 21.60— 0.0* 

13 48 25.44— o.o> 

I 52 12.18 — 0.10 



o 50.72 
9 40.04 



14 

14 
2 18 12.63 

2 18 13.96 

14 27 52.86 



O. 12 
O.OI 

o. 10 



— O. 



.>/ 



14 39 15.07 i- 0.05 

14 42 25.561 . . 

14 43 36.92-1- 0.07, 

14 57 o.iil— 0.07 

15 9 56.37 — 0.05 
15 24 5.71 . . 



0.02 



9.84 


15 27 39.80 


9.84 


15 37 47.96,-}- 


9.84 


15 59 8.34 


9.84 


16 I 53.50' 


9.84 


16 I 54.64 



- 9.83 I 16 13 45.75 



9.16 

9.29 



9.64 
9.64 
9.64 

• ■ 

9-53 
9-52 

9.39 
9.39 

9.27 
9.26 



4 17 56.62; 
4 20 12.85 
7 29 37.69 



4- 1. 14 



7 32 23.24 + 0.02 
9 39 27. 721-1-69.40 

4 26 3.83I . . 
4 28 20.15 - • 
I 

6 39 19.02,- o.iS 

7 26 9.9114- 0.23 



33-34-36. Wire A used. 
40.41. Wire B used. 



OBSERVATIONS WITH TBE TRANSIT CIRCLE. 



37 



^ Circle 
S Division. 

3 I 



I 

2 ■ 

3 ■ 

4 

5 
6 I 



310 16 



17 20 

17 52 
10 20 

39 14 
13 54 



.^ , 


13 54 


9 




10 




" , 


274 48 


12 ' 


359 48 


13 


359 48 


14 


43 40 


15 


307 2S 


16 




17 




18 


288 28 


19 


38 44 


20 , 


348 52 


21 


• • 


22 


290 40 


23 


333 50 


24 


18 58 


25 




26 




27 


322 34 


28 


II -42 


29 




30 


54 l& 


31 


357 56 


32 


47 42 


33 


52 14 


34 


40 34 


35 


31 58 


36 


62 30 


37 




30 




39 


40 14 


40 


17 8 


41 


17 40 


42 


14 2 


43 


14 2 


44 


33 16 


45 i 


25 43 


46 


17 20 


47 , 


16 48 


48 


55 22 


49 


6 40 



MICROSCOPE MICROMS. 



I. 



r. " 
10 6.1 



18.2 

19. 8 

9 24.8 

10 I I. 8 

10 16.5 

10 16.5 



10 6.0 
12.0 

12.0 
10 16.5 

7.1 



II. 



10 7.5 
10 17. I 

10 13-5 



9.5 

12.1 
10 9.8 



10 10.2 



10 12.3 



4.5 



14.6 
16.8 
22.5 

9.5 
14.5 

14.5 



5.8 
10. o 

10. o 
14.6 

6.5 



6.5 

15.5 
10.5 



III. 



IV. 



II 
2.1 



10.4 
13.0 
19.9 
5.0 
10.5 

10.5 



3-5 
7-1 

7-1 
10.7 

3.5 



8.4 

9.5 
7.0 



II. 9 
"3 



II 
4.0 



13.0 

143 
19.2 

5.6 
II. 4 

II. 4 



3.8 
7.0 

7.0 

12.0 

50 



TELESCOPE MICROMETER. 



Rev. 



I. 



4.4 
12.4 

8.9 



10 


6.8 


5.5 


10 


10. 


7-5 


10 


12.3 


II. 2 


10 


9.1 


7.0 


10 


7-4 


5.5 


10 


4.0 


3.4 


10 


16.5 


15.0 



6.0 

7.3 
3.4 

6.9 

8.0 

I.O 

5.5 
7.0 

2.5 

2.0 
28.1 

II. 4 



5.0 
II. o 

8.4 



28 



31 
32 

24 
26 

25 
27 



23 
23 

24 
27 
27 



26 
22 

25 



799 



229 



560 



2. 



799 



220 



3. 



4. 



781 766 



800 



080 



612 
609 



447 



680 



6.9 

7.6 
4.4 



7.0 
8.0 

1-5 

5.0 
7.2 

3.6 

2.8 
29.4 
II. 9 



10 10.6 



II 
II 
10 
10 
10 
II 



12.9 

18.7 

9.8 

9.8 

0.6 

S.2 

3.4 
10.6 

5.0 
9.8 



8.3 

12. 1 
16.6 

7.3 

7.3 
29.0 

3.8 

1.8 
8.6 

3.4 
7.3 



4.5 i 5.1 



8.0 
12.8 

5-2 

5.2 
25.8 

0.4 

0.4 
5-4 

05 
5.2 



8.8 
14. 1 

5.8 

5.8 
25.2 

0.6 

29.7 
6.0 

29- 5 

5-8 



No. Barom. 



External ' Attached 
Therm. Therm. 



in. 



28 

25 
27 

26 

25 

24 

27 
22 

31 

29. 

21 

30 

29 

27 
28 
20 
18 

25 
33 

20 
18 

28 
26 



310 
281 

• • 

769 



133 
061 



361 
122 

021 

878 



259 
805 

216 



389 



470 



842 



723 
320 



530 
292 
294 



380 
199 
691 



341 

929 
8S0 



551 

• • 

870 
369 



400 



641 



= d 
o o 

C o 



327 



103 

044 
975 



3" 

105 

019 
883 
050 
356 

211 
801 
309 



377 

375 
960 



410 
102 
289 



189 
061 
589* 



778 
502 



239 
188 

• • 

510 



10.7 



10.7 
10.7 
10.7 
10.7 
10.7 

10.7 



10.2 
10.2 

10.2 
10.2 
10.2 



119 



350 
751 

400 



040 
871 



280 
030 

848 

779 
940 

398 

120 
721 
330 



495 



413 



752 
625 
005 



970 
926 



329- 
940 

832 
770 



10. 1 
10. 1 
10. 1 



Apparent. 
Zenith Dis- 
tance, South. 



031 
712 
180 



419 



344 



560 
162 



770 

555 



10. 1 

10. 1 
10. 1 



10. 1 

10. 1 

10. 1 
10. o 
10. o 
10. o 

10. o 
10. o 
10. o 



10. o 



474 



II 
II 
II 
II 
II 



2 
2 
2 
2 
2 



II. o 

II. 6 
II. 6 



285 10. o 
595 ; 10. o 



o / // 

310 18 37.0 



17 
17 

10 

39 
13 



21 

53 
24 
17 
57 



50.7 
28.4 

2.8 

1.3 
19.0 



I 

g 
o 



13 56 48.9 



274 51 53.2 
359 51 52.1 

359 51 37-9 

43 42 51.4 

307 30 57.8 



288 31 12.4 

38 48 8.3 

348 55 18.5 



290 42 43.1 

333 53 29.3 
19 I 2.5 



322 37 10.6 
II 15 28.0 

54 21 50.9 

357 58 48.5 

47 46 14.7 
52 18 29.2 

40 39 4.4 

32 2 26.6 
62 34 38.0 

40 19 28.3 

17 II 54.7 

17 43 31-7 
14 6 36.6 

14 7 6.7 

33 20 34.2 

25 45 1.5 

17 24 45.8 
16 53 10.6 

55 24 45.7 
6 33 7.1 



415 



330 

329 
326 



307 



409 



415 
418 

419 



426 

• ■ 

431 
434 

434 
434 



439 



440 
446 
450 



453 
456 



459 



325 



360 



300 



Refraction. 



Apparent N. 
P. Distance. 



+ 
-+- 
4- 



/ // 
I 6.2 



17.3 
17.8 

10. 1 

45.1 

13.7 



— 9 41.8 

— 0.1 

— 0.1 

4- 53-8 

— I 13.2 



+ 



2 46.8 

45.3 
II. I 



— 2 28.3 

- 27.7 
+ 195 



- 43-2 
-h II. 3 

+ I 18.8 

— 2.0 
-f I 2.4 
-4- I 13.3 

+ 48.7 

+ 35.6 

+ I 490 



-f 48.2 



+ 

+ 
+ 

+ 

-h 



17. 1 

17.7 
13.8 
13.8 
39.2 
26.8 

17.4 
16.9 

19.4 
6.5 



// 



I 23 52.0 — 



68 28 29.2 

69 o 7.4 
61 30 34.1 
90 24 7.6 

65 3 53.9 



0) 

s 


c 


C 





c« 




^ 


u 


u 


9 







su 




II 


^^^ 


1.5 



+ 13.6 65 3 23.7 



2.6 

2.7 
0.6 

2.1 

3.8 



- 3.8 



325 48 32.6 — i.i 



50 58 13.2 

50 57 590 
94 50 6.4 

358 36 5.8 



339 34 46.8 
89 55 14.8 
40 I 28.6 



+ 13.5 

— 0-7: 

— 1.0 

— 0.6 



— I.O 

— i.oj 

— 0.4 I 



341 46 36.0 + 0.4 



24 59 22.8 
70 7 43.2 



- 1.8 
-I- 0.4 



13 42 48.6 
62 22 0.5 

105 29 30.9 

49 5 7-7 

98 53 38.3 
103 26 3.7 

91 46 14.3 

83 9 23.4 
113 42 48.2 

91 26 37.7 

68 18 33.0 
68 50 10.6 
65 13 II. 6 

65 13 417 

84 27 34.6 

76 51 49.5 

68 31 24.4 
67 59 48.7 

io6 32 26,3 , 
57 39 34.8 , 



- 3.7 

- 0.6 

- 0.7 

- 2.4 
~ 0.6 

- 3.4 

- 2.4 
+ 0.3 

- 4.9 



+ 



2.6' 
2.6 ' 

4.0 I 

4.0 

2.3 



2.6 
2.5 

1.9 
o.i 



No. 



MOONS— 



Parallax. 



For summary of the elements of reduetiopi see page 3. 



45 



Semi-diam. 



" I 



— 25 36.9 + 16 13.3 



38 



OBSERVATIOMS WITH THE TRANSIT CIRCLE. 



DATE' I 



31 



June I 



OBJECT. 



• 




\m 




u 


. \ 


t 




V 


be 


CO 







SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



I. . II. III. I IV. 

I I 



V. 



VI. 



I I 

VII.VIII IX. Meanwirc.= Inst. 



Clock ! Clock 
appar'nt. adopted 



Apparent R. 
Ascension. 






CO 



1868. 

May 30 



I 



I 

2 

3 

4 
5 



a Canis Minoris, (R.) 
Venus I . . . 
Venus, S. C. . 
Moon I, N. 

32* Camelopardalis 




I 
20.1,22.724.330.232.4 



6 I 33' Camelopardalis 

7 I Polaris, S. P. . . 

8 I « Cassiopese, S. P. . 

9 I 5 Ursae Minoris . 

10 . e Bootis . . . . 



II 

12 ! 
13 

15 

16 

17 

18 

19 I 



20 
21 
22 

23 

24 



a 
a 



e 



25 
26 

27 
28 

29 
30 

31 

32 
33 

34 
I 35 
.36 

' 37 
38 

39 
I 40 

' 41 

■ 42 

43 

44 

45 
46 

47 

48 

49 
50 



e 

A? 

a 



y 

a 



(5 

7 
o 



i 



4 Draconis 
V Virginis, (R.) 
32* Camelopard., (R.) 
32'' Camelopard., (R.) 

Polaris, S. P. . 
a Virginis, (R.) . 



Librae .... 
Juno .... 
Carons Borealis . 
Serpen tis . 
Saturn I . . . 

Saturn II . 
Ophiuchi . 
Anonymous 
Scorpii .... 

Virginis 
Polaris, S. P. . 
Moon I ... 
Bootis .... 
Polaris .... 

Ceti . . .• . 
Piscium 

Arietis .... 
Ceti .... 

Sun I, N. . 

Sun II, S 

Mercury I, (center) | 
Geminorum . < 

Geminorum . , 

I 

Canis Minoris, (R.) 
Geminorum 
Venus I, S. C. 
Venus, N. L. . 
Ursx Majoris, (R.) 



Leon is, (R.) 
Crateris 
Draconis 
Leonis, (R.) 
Ursae Majoris 
Virginis 



34- 5 40. 5,42. 5 45.0 
51. 054. 155. 8 2.3 4.5 6.7 I3.4'i5.5 18.2 



38.7 . 



51.3 



m. s. s. 

32 32.47 + 0.03 
39 4.61 4- 0.07 



341:53. 3 14.0 



54.1 . . ;56.057.3, 
33-6,53.8. . 



t • 



I 



42. ol 2.022.441.4 1.9 



22.0 



151.258.0 1.8 17. 5122.527. 642. 547. 1 53.6 
,10.221.428.053.2 2.2 10.336.742.853.6' 
{10.413.214.819.621.8 



1-3 3-5 
34.837.6,39.0' 



5.4 



26 26.04 + 0.09 

48 13.76— 0.17 

48 21.94— 0.17 

10 39-40-»- 0.70 

18 22.42 -h o.io 

28 2.04 -h 0.02 

39 24.12-I- 0.07 



7.5:10.013.815.518.0' ro 



I44. 847.449.055.2 
36.o'39.i40.9 



46.4 



45.247.149.155.256.959.51 
44. 5*47. 748. 950. 1:51. 2 



57.259.2 5.3 6.9 9.3 
57.9'59.7 2.41 



48.450.652.855.0 
24.827.328.735.0137.0139.044.946.649.1 

. . 128.130.932.433-7 34. 8 
28. 3.30. 5 32. 8 39. 7141. 5 44 I 



16.9 19. 821. 5 



5.1 7.7 9. 215. 517. 4 
.... ;3l.O 7.0I41.0 

0.5; 3-1; 5-0 
21.6124.226.0 

- • I • - 54-5 



18.542.5 

i 

121.624.325.8132. 2:34. 2 
'i6.919.621.3j . . I . . 
,19.021.823,1 27.I131.3 



19.5 25.727.1 29.71 

22. 055. 0' . . I . . i 

II. 113. 215. 3,21.5123. 125. 8 

32 . 3I34 - 4 36 . 6 43 . 0I44 - 7,47 - 3 

3 • V * • • • • • 

i . ! i 

. . 42.3;44.046.5| 
36.3,42.7,44.447.0' 



N. 

N. 
N. 
N. 
N. 

N. 
N. 
N. 
N. 

N. 

N. 
N. 
N. 
N. 
N. 
N. 

N. 

N. 
N. 
N. 
N. 
N. 



. . 38.6 
35.439.5 



40.243.0 
41.043.6 



I 



3 

2 

3 

2 

2 

4 

2 

1.2 

3 
14.5 



25.7127.930.136.8,38.241.2 



46.853.555.257.9 
7.7 14. 616. 3 19. 1 



15.622.2 
21.228.4 



14.8 17.3 19.0 

31. 334. 135. 8 
52.0.54.856.6 

0.7: 3.4 5.0 
4.3, 7-3, 9-1 

|t9. 7 22. 3 23. 8 30. 1 32. 1.34. 1 40. 341. 8 44. 3 
I 8.5 Ii.4i3.2 20.i;22.4j24.7 3i.6 33.5 36.5 

37.4 



42.4:44.8 

3.1! 5.4 

11.3,13.4 
16.4,18.9 



23.626.3 
30.233.2 



40. 1 41.7 



I 



! • • 

'16. 1 21. 7 24. 8138. 342. 6 



48.6,50.9153.159.7 



4 
3 
3 

5 
5 
5 

4 
4 



4 
3 



I 

5:4 

8|44 

■ I . 
6 19 

9145 
4|30 

• • ■ 

8.1 10 



I. 

j4i. 

;i*6. 

|40. 
27. 



.2 6 
.4:46 

• I « 

,220 

.3'47 
.031 

■ i-»^ 
.512 



.OiI2 
.0152 

.'8,27 



47.0 



0.2 



1.2; 4.31 



5.574- 0.09, 

24 47.16 -\- O.O9I 

29 16.86 -H 0.07 

37 57.14+ o.oS 
o 49-33 + 0.10 

50.64 + 0.10 

7 36.93 + 0.09 
II 3.82 . . 
21 30.57+ o.ii 

3 17.43 + 0.02 

10 42.88 — 0.75 

19 I3.I8-I- 0.02 

48 34.46-1- 0.03 

10 42.12 ~ 2.8^ 

17 34. 10 -I- 0.07 
24 34.28 -h 0.04 
47 29.93+ 0.04 
55 31.31 + 0.05 

38 27.89 + o.o.^ 
40 44.64 + 0.04 

1 5.51 + 0.03 

30 13.50+ 0.04 
26 18.78 + 0.02 

32 32.06 + 0,01 
37 22.43 + 0.03 
44 50.78+ 0.03 




h. m. s. s. 

7 32 23.24 + 0.04 
7 38 55.42 -r l.l'j 



2 26 16.92 +65.73 

2 48 4.3S — s.:o 

2 48 12.56 — 0.20 

1 10 30.92 -I- 1. 01 

2 18 13.33 + 0.50 

4 27 52. 87 — o.lg 
4 59 15.00— o.oi 

4 9 56.4S + 0.05 

5 24 38.07 

5 29 7.75 — ^^■^'- 

5 37 48.04 + o.a- 

6 o 40.26 . . 



6 0.41. «;7 

6 7 27.85 



0.01 



.8 
.5 

.8 



58 
37 



.0,18 

- . . |i5 

. . . I22 

. 23.0! I 

'I2.6i5.2'i6.8!23 



• • 



3.5 9-2 

I I 

.5 14. 7|i7. 023. 6 25. 027. 8 
.254.356.4 2.9 4.3' 6.8 
. j . . . . 5.1 9.8 17.2 
.1,29. 2 31. 437. 7 39. 3 42.0 
.4! 2.0! 5.416.018.6^22.9 
.839.842.048.1 49.7 52.2 

I 
19. 1 29.3 . . 
220.322.4,28.4130.032.5 
.6:35. 655. 735. 450. 615. 2 
.9'42.7| 2.542.858.123.1 
.0|36.o'i4.5 51.5I . . . . 
.025.1127.133.434.937.5 



J 



59.01 9.0 



55 42.60;— 0.17 



7 14.70— 0.02 

12 54.34+ 0.08 
23 4i.3i|— 0.12 
42 29.26,— o.oi 

47 1.94'— 0.02 
58 39.83 + 0.05 

6 9.04 — 0.28 

13 20.27 + O.OI 

48 15-77- 1. 15 
48 23.10— 1. 15 

10 36.88+ 2.99 

18 25.071+ 0.03 



8.87 
8.93 



- 8.76 I- 



8.88 
8.88 
8.88 
8.88 
8.87 

8.87 
8.87 
8.87 



6 21 21.51 o.Oi.- 

3 3 8.48— n.CN 

I 10 33.16 +1.51 

3 19 4.23 +65.31 

3 48 25.52, f 0.03 
I 10 30.39 — o.^5 

1 17 25. 3S J- 0,05 

I 24 25.43 ■^- o.i'^ 

1 47 21.08 + O.OI 

2 55 22.48 -»- 0.04 

4 38 19.05 
4 40 35.80 

6 o 56.66 + 0.22 

6 30 4.66 — O.OI 

7 26 9.93 + o^'^ 



7 32 23.20 

7 37 13.59 
7 44 41-94 



-h 0.01 

— O.II 
+ 1.2^ 



8.87 10 55 33.56 + O.I«) 



■ • 



8.(;o 



- 9.79 - 



8.87 
8.87 
8.87 
8.87 
8.87 
8.86 

8.86 
8.86 
8.86 
8.86 
8.86 
8.86 



I 
I 
I 
I 
I 
I 

2 
2 
2 

2 
1 

13 



7 
12 

23 
42 

47 

58 

6 

13 
48 

48 

TO 
18 



5.81 + 

45.55+ 
32.32 + 
20.38 -r 
53 03 + 
31.02 + 

59.90 + 
11.42 + 
5.76- 
1309 + 
31.01 — 
16.24 + 



0.04 

O.OI 

0.41 
0.02 
0.01 

0.57 

0..S4 

6.64 

0.6q 

0.44 

0.07 



4. Microscopes seem t\w) revs, small. R. A. over Da and E. 

5. Observed over wire A. 
5.6. Zenith distance doubtful. 

12. Bisection with wire B. N. P. D. seems one rev. small. 
18. Observed for Phocaa ; R. A. over set E. 
28. Two zeros on sheet. 
• 36. Seems five revs, too great. 

44. Seems one rev. wrong in N. P. D. 
44.45. Chronograph record seems !• wrong. 

45. Seems two revs, wrong in N. P. D. 
47.48.50. Bisections at sets B and D. 



QBSEfiVATIONS WITU THE TRAN6IT OiRCLfi. 



89 



MICROSCOPE MICROMS. 



J Circle 
5 ' Divisiun. 

3 

z 



I 146 38 



3^ 52 
3M 44 

314 44 

307 2$ 

2S5 42 

322 34 

II 12 



I 


10 

II 
12 

13 
14 
15 

16 

ij 
10 

20 
21 

23 
24 

25 

20 

'»^ 
- 1 



2i) 
30 



32 



33 



34 

3^> 
37 

3> 



40 
41 
42 
43 
44 

45 
46 

47 
4> 
49 
50 



TELESCOPE MICROMETER. 



I. 



• I 

II. ! III. ' IV. 



// 



// 





9-7 


12.3 




12.8 


11.3 




12. S 


II. 3 


10 


21.7 


19.5 


10 


".5 


8.5 


10 


11.5 


8.5 




3.5 


1.6 


10 


8.3 


7.6 




7.3 


5.2 


10 


9.6 


7.5 



47 44 

40 28 

II 40 
32 o 



7.6 I 
2.2 
12.0 
10 13.3 



42 12 
64 56 



7.5 
5.0 



6.7 

29.5 
10.7 

10.6 



6.5 



// 



7.4 
6.8 

6.8 

16.5 

6.8 

6.8 

29.8 

5.2 

3.6 

4-5 

2.1 

28.0 

6.4 

6.4 



3.6 



3.0 29.5 



310 16 10 8.6 7.6 I 6.1 



24 10 

18 40 
35 16 

16 24 
16 56 

13 14 
22 20 

6 40 



II. 4 
12.7 
10.7 

10 14. I 

10 18.3 

8.1 

12.5 

10 15.3 



146 38 I 10 14.7 

10 30 , 8.1 

14 56 I II. o 

14 56 II. o 

203 30 , 4.8 



162 iS 

«;2 52 

32S 48 

156 22 

344 24 
29 22 

320 30 
141 S 
225 10 
225 10 
307 28 
130 36 



8.0 

8.8 

13.7 

10. o 

8.2 

II. 2 



9.8 

"•3 
9-3 

11-5 

15.4 
6.2 

10.4 
13.2 

16.0 
6.6 
9.2 
9.2 
6.6 

8.2 

8.2 

12.7 

10. 1 

6.5 
10. 1 



8.8 


7.1 


9.5 
5.2 


8.9 
6.6 


5.2 


6.6 


4.3 


3.5 


7.3 


7.3 



6.3 

7-9 
5.4 

7.6 
12.2 

3.7 
6.5 
9.7 

"3 
3.6 
5.0 
5.0 
3.6 

3.9 

3.5 

10.6 

6.7 
3.6 
6.4 

5.8 

5.8 

3.5 

3.5 
I.I 

3-4 



// 



5.3 

7.8 

7.8 

15.3 
6.4 

6.4 
0.3 
6.1 
4.0 
4.2 

3.5 
26.5 

6.5 
6.4 



2.5 
29.8 



6.1 



6.3 

8.4 
5.8 

8.5 

13.1 

3.7 
6.9 

9.1 

9-5 

3.3 
6.2 

6.2 

0.8 

3-0 

4.2 

10. o 

5.3 
3.6 
6.1 

4.3 

2.5 

0.5 

0.5 
0.9 

I.I 



Rev. 



29 
21 
21 
28 
30 

32 
26 
26 
26 

25 

30 
23 
23 
29 



31 
24 



28 



25 
24 
27 

23 

24 

23 

27 
26 

28 
26 

25 
27 
23 

25 
21 

28 

25 

23 
25 

24 

26 

23 

25 

27 
26 



I. 



2. 



633 



215 



900 

895 
555 
195 

020 
795 



525 



480 
161 



626 

728 

• • 

280 



784 
548 



562 

438 

• • 

662 

• • 

170 



985 



435 



480 
168 



890 

540 
256 

050 
900 



606 578 



431 
138 

730 
512 



680 
480 
250 

785 
064 

447 



520 

422 
142 

• • 

674 

• • 

138 

246 
980 

• • 

• • 

490 



4. 



610 



5. 



295 
658 



452 



300 



530 



335 



785 

590 
360 

920 
890 



262 



680 
625 

455 

030 
720 
780 



042 


« • 


005 


570 


• • 


500 


560 


• • 


1 

535 1 



480 



^ 



581 



862 
028 



589 



396 
082 
700 



372 
087 



920 
530 
352 
130 

7CX) 
060 



855 
529 

• • 

142 



001 



951 
130 

430 
928 



584 
388 

313 
020 

• • 

585 
on 

005 

258 

860 

875 

• • 

493 
860 



464 
307 

286 



535 
006 

985 

220 
826 

• • 

059 
464 

848 



o o 

c ^ 

*- O 

"r 1 



10. 



10. o 

10. o 

10. o 
10. o 

10. o 

10. o 
10. o 

10. o 

10. o 

10. o 
10. o 



10. o 



10. o 



13.4 



13.4 
13.4 
13.4 

9.0 
9.0 

8.8 

8.7 
8.6 

8.6 
8.6 
8.6 
8.6 
8.4 

8.3 

8.3 

8.3 

8.3 

8.3 
8.2 

8.2 
8.2 
8.0 
8.0 
8.0 
8.0 



Apparent 
Zenith Dis- 
tance, South. 



o / // 

146 40 20.2 

38 54 55.2 
314 46 II. 7 

314 45 39-2 

307 30 55.4 
285 45 2.6 

322 37 9-3 
II 15 27.3 

47 46 16.7 
40 29 27.7 
II 43 47.2 
32 2 27.6 



42 13 53.2 
64 59 43.5 



310 18 39.9 



24 13 27.0 

18 43 45.3 
35 18 52.4 

16 27 49.8 
16 59 23.6 

13 17 53.1 
22 22 51. I 

643 7.1 

146 40 26.7 

10 33 1.5 

14 59 23.0 
14 58 49.4 

203 33 55.5 

161 21 25.0 
52 56 30.2 
328 50 25.8 
156 25 19.0 
344 28 0.9 
29 25 27.0 

320 33 4r.9 
141 II 0.5 
225 13 48.7 
225 13 30.8 
307 30 56.0 
130 39 2.2 



E 

if: 



Refraction. 



400 



450 



442 

434 
408 



365 
330 
330 



314 
350 



370 



384 
394 

• • 

401 



— 36.2 



+ 45.0 

— 56.2 

— 56.2 

— I 12.6 

— 3 15.7 

— 42.8 

4- II. 2 

■¥ I 1.7 

-H 47.9 

H- II. 7 

-H 35.2 



-h 5I.I 
+ 2 0.1 



- I 6.8 



-h 



H- 



-f- 
4- 



+ 



-H I 



+ 






25.5 
19.2 

39.8 

16.4 
17.0 

13.1 

22.8 

6.5 

36.3 
10.3 

14.7 
14.8 

24.2 

17.6 

13.4 
33.6 

24.3 
15.5 
31.5 

45.9 
44.9 
56.4 

56.4 
12.9 

5.3 



Apparent N, 
P. Distance. 



to 



\ti 



// 



84 26 37.2 



90 2 1.4 
45 51 36.7 

45 51 4-2 
358 36 4.0 
33648 8.1 

13 42 47.7 
62 21 59.7 

98 53 39.6 

91 36 36.8 
62 50 20.1 
83 9 24.0 



93 21 5.5 
116 8 4.8 



I 23 54.3 



75 20 13.7 
69 50 25.7 
86 25 53.4 

67 34 27.5 

68 6 1.8 

64 24 27.4 

73 29 35.1 
57 49 34.8 

84 26 30.8 

61 39 33.0 
96 5 58.9 
66 5 25.4 
27 32 1.5 

69 45 13.8 
104 4 4.8 

19 56 13.4 

74 41 26.5 
35 34 6.6 
80 32 10.7 

II 39 17.2 

89 56 5.6 

5 51 36.1 

5 51 54.0 

358 36 4.3 

100 28 24.3 



e o 
«•- 

vr o 



4- 5.1 



—20.5 

-53.0 

- 1.8 

- 1.3 

- 3.6 

- 0.6 

-h 0.9 

- 2.4 
-h 4.0 
-I- 1.4 



— 0.2 

- 2.5 



— 0.2 



0.0 

4- 0.1 

- 0.5 

- 2.5 

- 2.5 

- 1.8 

- i.o 

- Q.2 

- 1.2 
0.0 

- 4-4 

- 4.4 

- 2.6 

- 0.8 



!- 2 





— 2 
-1- 


4 
I 


— 

-4-n. 


9 

5 


+29 



2 



—20. 

- 3 

— I, 


9 


I 


-h 0. 


5 



No. I Barom. 



External 
Therm. 



in. 



Attached 
Therm. 



No. 



For summaty of the elements of reduction see page 3. 



MOON'S— 



Parallax. 



/ // 
36 16.4 



Semi-diam. 



/ // 
+ 15 50.9 



40 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 




OBJECT. 



1868. 
June I 



I 

2 

3 
4 

5 



XI 

12 

13 
14 

15 
16 

18 
19 

20 
21 
22 
23 

24 

25 

26 

27 

28 

29 

30 

31 
32 
33 
34 

35 
36 

37 
38 

39 

40 

41 
42 
43 
44 

45 
46 

47 
48 

49 
50 



C Virginis 
50 Cassiopca;, S. P. 
a Draconis . 
a Bootis . 
Moon I, N. 



6 


6 


Bootis . 


7 


5 


Ursae Minoris 


8 


a2 


Librae . 


9 


/3 


Ursae Minoris 


10 


i" 


Bootis . 



a Coronae Boreal is 

Saturn I, S. 

Saturn II, N. . 
^ Ophiuchi . 

Sun I, N. . . 
Sun II, S. . . 
Venus I, S. C. 
Venus, N. L. . 
ff Virginis . . 



K Draconis . 
32' Camelopard., (R.) 
32«Camelopard., (R.) 
6 Virginis 

Polaris, S. P. . 

A Cassiopeae, S. P. . 
C Virginis, (R.) . 
50 Cassiopex, S. P. . 
a Draconis 
a Bootis, (R.) . . 

^i Bootis . . . . 

48 Cephei, S. P. . 

jS Librae, (R.). 

^ Bootis . . . . 

a Coronae Bor., (R.) 

a Serpentis . 

Saturn (ring) I, S. 
Saturn (ring) II . 
Moon I, N. 
Moon II . . . 



a 



Mercurj', center 
Canis Majoris. 
Venus I, N. C. 
Venus, S. C. . 
Polaris, S. P.. 



t 

(0 



I N. 

1 ^• 

! N. 
I N. 
' N. 

I N. 
I N. 
I N. 

I ^* 

N. 
N. 

N. 
N. 

N. 
N. 
N. 

N. 

N. 

N. 
N. 

N. 

N. 

N. 






SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



t 'J 



I. 



5 

4 
3 

5 
4 



56.2 
42.2 



II. I in. 



58.8! 0,3 
50.4:55.2 




V. 



VI.iVII.'VIIl 



!30.5l36.6j40.3;54.8 



35.8 
34.1 



38.5'40.i46.6 



8.510.5 



16.6,18.2 



IX. 



Mean wire. 



Inst. 



Clock Clock 
appar'nt. adopted. 



' 5 - 
I Apparent R.' ^5 5 

Ascension. ^ ^ 



o - 



20.7 

2i.3'28.o'47.5'52.6j 0.6! 
o.oj 4.5,19.0122.429.61 
48. 851. 057. 659.1! 1.8 



35- 7 39-942.044. 1 46. 2 48. 4 52. 5'54.o, 



3 32.6136 

4 io.6'2i 

3 
2 

3 25.528 



3.0 

4 59-8 2 



9|39. 
527. 
. 41. 

• 3. 
530. 



549. 
7,53. 

5,43. 

i|ii. 

6,38. 



m. 

28 

52 
o 

9 
12 



452. 

7| 2. 

5145- 
619. 

3'4i 



s. 

8.47 ■ 
21.43 + 
59.74'- 

48.81; + 

44.10-f 



6,56. Oj 6.3 8.712.8 
6 10.836.842.954.0 

747.849-9 . . 
4,26.734.51 . . 
143.651.2:53.1 56.4 



4 I24.426 



I 

I I . . 

1 150.1 

2 35.7 

2 1.. 
4 I 6.4 



4 
4 
4 
4 
4 



4.7 



7. 
4. 

9- 
928. 



6'l2.I 



711. 
534. 



i6.8 2i.2'26.oj27.4 30.4 
. . I . . I21.3I23.1 25.7 
14.0 16. 1 18. 4J . . . . 
.6'38.7 44.9'46.2 48.9 



s. 
0.06 
0.301 
0.07 
0.04 
0.07 



s. 

8.87 

> • 

8.84 - 



20 52.76— 0.02 
28 2.29 — 0.21 
43 45.^8!+ 0.07 
51 19.06 
19 40.92 



51 19.06— 0.18 



8 
6:36 



52 

38 



41.844.046. 1 48.2 50.4, . . 
7|54.ii 1.2 3.31 5.6|ii.8'i3.4i6.5 
6.40.3146.8149.251.5,57.9 59-4 2.3 



29 16.70 
o 12.77 
o 14.00 
7 36.63 

50 46.10 
53 3.19 



-+- o.oi 

-I- 0.03; 

-f- 0.08; 

-h 0.08' 

-H 0.06! 



- 8.92 

- 8.84 

- 8.93 

- 8.82 



+ 



0.03 
0.03 



• • 



9.0 



14.2 

22.2 

7.2 



10.5 16.7 18.7 



59.0 

33.9|53.2 

41.4, i.o 

8.7'i4.9 



20.826.828.331.0 



5. 211. 123. 527. 935. 6 
. . 48.5'i3.6' 



52 49.08 -I- 0.03 



s. 
8.86 
8.86 
8.86 
8.86 
8.86 

8.86 
8.86 
8.86 
8.86 
8.86 

8.86 
8.86 
8.86 
8.86 

8. .53 
8.53 
8.50 



h. m. s. s. 

13 27 5967 0.f«3 

I 52 12.87.-^ 0.24 

4 o 50.81,-h 0.13 

4 9 39-99— 0.01 

4 12 35.31 +65.27 



4 19 43.SS ^- 
4 27 53.22 4^ 

4 43 36.S9-r 

4 51 10.02 -t- 

5 19 32.07 - 



5 29 7.87 

6 o 3.99 
6 o 5.22 

6 7 27.83 

4 50 37.60! 
4 52 54.69 

7 52 40.61 



0.13 
0.26 
0.04 
0.04 
0.02 

0.0- 



— 0.02 



I. 



''^ 



17.0 



28.5 



41. 5I56. 321.0 
19.025.0,26.6 



3.040.017.0,54.5 



10.7 3.558.8141.5 
O.Oi 6.0 



35.729.7,12.2 



7-7 



8.1 10.116.3117.9 



155.7158.4 
i 0.2I52.3 ,. ^, 

l30.3]36.2|40.o'54.2l59.2J 4. i!i8. 5122.0 
35. 4 38. 1 44. 2 46. 448. 6'50. 853. ©'58. 9 



47.5,28.021.3 14. 655. 2I50. 4 



52.355.6 
42.4:31.2 

• • • • 

25.028.2 

2.4I 5.4 



57.9 



3.1 



46.8 
5.3 



s Virginis 
n Ursje Majoris, (R.) 
50 Cassiopeas, S. P. . 
o Bootis, (R.) . . 
/ Cassiopeae, S. P. . 
5 Ursae Minoris . 




42.6 

14.7 
3.3 



48.2 
8.0 



24.556.9 

. . 3.0 

30.237.8 

7. 314. 1 



52.454.3 

9.5I . . 

16.5118.7 

24.526.6 



45.547.1 51.6 



10. o 



17.4 
6.3 



24.0 



19.025.2 
7.8114.4 



23.5 . 



15. 917. 520.0 

I10.814.5 17.1I23.4 

o.652.7l47.5;28.5 

35.337.839.646.1 

153.346.242.7,27. 1 



8.514.I1I9.321.4 
47. 2I37. 910.7 3.2 

4.9! 6.9| 9. 1 . . 
40.6,43.050.752.7 



29.2 



0.8 
20.5 
42.2 
28.3 

1.5 

24.8 
52.0 

• • 

56.0 



13 18.69 -4- 0.05 

27 58.98 — 0.12^ 

48 14.15 — 1.40' 

48 21.65 — 1.40 

3 16.92I-I- 0.05 

10 40.2814- 2.98 



— 8.41 I— 8.46 I 12 13 10.384- 0.04 



21 35.6214- 0.29 

28 8. II — 0.03 

52 21. 30' 4- 0.32! 

o 59.20!— 0.07( 

9 48.54— 0.06; 



- 8.46 



- 8.43 - 



16.3 18. 625. 627. 330. 1 



56.6 

• • 

20.7 

28.7 



58.5 



23.0 



0.4 
26.6 

25.3 



30.8133. 1 
1 1. 5 12.6 



4.6 
28.3 



13.7 



53.8 56.1 58.4 0.8 

27.3I29-435.8J37. 3 
16.6 18.8I25.527.3 



32.0 



35.336.337.4 



9.5 



20.8 



26.251.3 

I 



26. 5129. 5132.4135.6 
21.4115. i|55. 5,50. 7 
48.1 50.1 56.958.5 



21.5 16.6 
0.310.3 



I 

35 



5157. 1 

4I4I.3 

I 



6.1 
31. 1 

■ • 

20.4 



40.0 
30.0 



57 8.56 

3 47.33 
10 4.95 

19 40.47 

29 16.34 



37 
59 
59 
51 

53 



56.43 
18.13 

20.84 

28.74 
40.72 



4- O.OI 

4- 0.40! 

— O.Ol' 

4- 0.02I 

— 0.08 



4- 
4- 
4- 
4- 
4- 



0.04 
0.06 
0.06 
0.06 
0.06 



29 56.16 4- 0.03 
39 27.34I— O.OI 
55 i6.67Ih- 0.02 



38.3 

• • 

42.5 
1.2 

50.9 



10 48.57 — 0.92 

28 7.74 4- o.oi^ 

42 29.56!— 0.05; 

52 21.61'— 0.03, 

9 48.18— 0.20 

18 21.88— O.OI' 



51.9 28 0.784- 0.13 



- 8.41 I- 



- 8.50 I- 



• I 



— 8.21 I— 



8.45 
8.45 
8.45 
8.45 
8.45 

8.45 
8.44 
8.44 
8.44 
8.44 

8.43 

8.43 
8.43 
8.43 
8.42 

8.42 
8.42 
8.42 
8.41 
8.41 

'8.16 
8.16 

8.15 



12 27 

12 48 

12 48 

13 3 



50.41 

430 
II .So 
8.52' 
10 34. Si 



o.i: 

7-5= 
0.05 

0.02 

0.76 



1 21 27.46 ->r 0.2: 

13 27 59.64 — o.ni 
I 52 13. iS 4^ 0.55 

14 o 50.6<y-k o.io 
14 9 40.04 4- o.f''< 

14 57 0.14' 0.00 

3 3 39-304- o.?: 

15 9 56.51,4- 0.05 

15 19 32.06— 0.03 
15 29 7-84i4- 0.04 

15 37 48.05'-^ o.os 

15 59 9.77 

15 59 12.4s 

16 51 20. 30, H- 66. 01 
16 53 32-37 

6 29 48.03-1- o.o'^ 

6 39 19.17.— 0.02 

7 55 8.544- 1.30 



— 8.11 I 1 10 39-54;^ 4 t' 



8. II 
8.00 



8.11 
8. II 
8. II 
8.10 
8.10 
8.10 



13 27 59.64 — O.OI 

13 42 21.50— 0.02 

1 48 1347 ^ 0.50 

14 9 39. SS — O.Oi) 

2 18 13.77 -^ 0.55 
14 27 52.85'^- 0.10 



7.9.20.25.27.31. Seems two revs, wrong. 

21 .22. R. A. over C3, C^, C5, and D, and N. P. D. at C3 and 
39. R. A. observed over wires E3, E4, E5, and VII. 
41. Wire A used. 
45. Sets D and E in R. A. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



41 



MICROSCOPE MICROMS. 



E 



I 

2 

3 
4 

3 



7 
S 

9 

10 

II 

12 

13 
U 

15 
i6 

17 
iS 

19 

20 
21 
22 
23 

24 

25 
26 

27 

29 

30 

31 
32 

33 
34 

"?«; 

37 

3-^ 
■;o 



40 

41 

42 

43 
44 

4? 
4^' 
47 
4"^ 
49 

CO 



Circle 
Division. 



TELESCOPE MICROMETER. 



I. 



II. 



r 


1 


38 


44 1 


290 40 


333 


50 


18 


58 


47 49 



346 22 , 
322 34 ; 

54 18 
324 8 I 
I o 

II 40 

57 14 
57 14 I 

42 10 ' 

16 2 ' 
16 34 ' 
15 32 ' 

15 32 
38 46 I 

328 20 I 
225 10 

225 10 1 

43 40 
307 28 \ 

2S8 28 ; 

141 8 
2r)0 40 

333 50 . 
160 56 



9.1 

10 18.8 
10 17.8 

9.1 
9.1 

9-5 



357 
296 

132 

I 

168 

31 

57 



56 
6 

10 
o 

12 

58 
12 



7.2 



56 58 ' II 20.9 



13.28 
55 22 
15 44 
15 44 
307 . 26 

33 44 
191 I 
290 40 

285 42 
322 34 



7.5 
10 9.1 

10 14.5 

10 14.5 

10 10. o 

12.7 

16.0 

6.9 

7.0 

8.8 



7.8 

16.5 

15.8 

6.9 

6. 9 

8.2 



r. 


»» 


n 




9.5 


8.1 




6.5 


6.0 




8.5 


7.0 




8.5 


6.7 


12 


0.9 


0.0 


10 


10.6 


8.6 




8.8 


7.8 




8.6 


8.1 




5.6 


3.6 




8.8 


7.0 




9.1 


8.4 




7.2 


6.2 




7.2 


6.2 



9.4 


7.6 


6.7 


9.0 


6.7 


9.0 


8.7 


7.7 


5.1 


4.7 


5.4 


5.2 


8.5 


8.2 



7.9 


6.7 


5.6 


5.8 

1 


12.4 


9.9 


10.2 


8.8 


8.0 


8.0 


9.3 


6.7 


2.5 


3.3 


10.2 


8.4 



20.3 

6.4 

7-5 
II. o 

II. o 

9.0 

12.2 
17.4 

8.2 

6.1 
7.0 



III. 



M 

4.4 
4.4 
4.8 
3.6 
25.1 

5.7 

5.7 
4.0 

2.3 
4.3 

5.3 
2.0 

2.0 

4.0 

12.0 

"5 
3.6 
3.6 

5.2 

6.0 

5.4 
5.4 
3-6. 

2.8 

3.4 

4.5 
5.2 

4.6 

2.7 

7.1 
7.1 
3.2 

3.7 
0.2 

3.6 



14.5 



6.8 
4.2 

8.7 
8.7 
5.0 

8.6 
12.0 

5.5 

4.2 
5.0 



3.1 
0.6 

6.8 

7.1 
2.2 

4.3 
27.5 

5.3 
2.2 

14.9 



6.3 
3.0 

7.7 
7.7 
6.7 

8.0 

12.3 

6.0 

4.5 
6.1 



No. Barom. 



External 
Therm. 



in. 



Attached 
Therm. 




5.3 


26 


2.8 


23 


2.8 


25 


4.5 


27 


2.0 


27 


2.8 


26 


2.4 

C .1 


23 

27 



270 


159 


« • 


• • 

• • 

• ■ 

752 
277 


• • 

• • 

• « 

769 
232 


« • 

940 
125 

266 



25 
27 

27 

22 

23 

27 
22 

21 
22 

24 



31 
27 
25 
23 
19 

22 

27 
27 

26 
26 



088 
780 
984 
416 



528 



059 



088 
338 

488 



025 
360 
332 



630 



098 

344 

525 



610 



945 
945 
569 



008 



058 
648 



342 



042 



073 

730 
410 



088 

612 
402 



064 



602 
308 



825 

933 
096 

674 
232 

052 



973 
229 

120 



522 

964 
962 

330 
394 



250 



930 
835 



197 

• • 

170 

• • 

010 



o o 
c o 



825 



625 
246 

lOI 

600 

925 
235 

185 



565 

981 

933 
198 

314 
295 



855 
838 



260 



185 I 
042 ' 
800?, 



665 I 695 
340 378 



8.0 

7.9 
7.9 
7.9 
7.9 

7.9 
7.9 
7-9 
7.9 
7.9 

7.7 
7.7 
7.7 
7.7 

8.0 
8.0 
8.0 
8.0 
8.0 

8.0 
8.0 
8.0 
8.0 
8.0 

8.0 
8.0 
8.0 
8.0 
8.0 

8.1 
8.1 
8.1 
8.1 
8.1 

8.1 
8.1 

8.2 



8.2 
8.2 
8.2 
8.2 
8.1 

8.1 
8.1 

8.1 

8.1 
8.1 



Apparent 
Zenith Dis- 
tance, South. 



38 48 9-4 

290 42 41.4 

333 53 27.2 

19 I I.I 

47 51 44.8 

346 25 59.9 

322 37 40.6 

54 21 51.8 

324 12 24»6 

I 3' 0.5 

II 43 43.6 
57 18 31.1 
57 18 13.2 

42 13 51.7 

16 5 59.0 
16 37 29.0 

15 35 43.7 
15 35 9.2 
38 48 56.6 

328 23 I.I 
225 13 46.5 
225 13 28.5 

43 42 48.8 
307 30 58.4 

288 31 15.5 
141 II 50.4 
290 42 44.1 

333 50 27.1 
160 58 58.3 

337 58 47.2 
296 10 5.1 
132 13 45.8 
I 2 59.9 
168 16 16.5 

32 2 24.1 
57 16 12. I 

57 2 57.1 



13 32 17.9 
55 24 45.7 
15 47 18.2 
15 47 52.1 
307 30 59-8 

38 48 8.1 
191 4 48.6 
290 42 57.7 



285 45 
322 37 



5.5 
8.8 




/yr summary of the elements of reduction see page 3. 



402 
404 



Refraction, 



n 



— 2 



-h I 



414 



424 



421 



4- I 



45.1 
27.2 

27.5 

19.4 
2.1 

13.6 
42.9 
18.4 
40.6 
i.o 



-H II. 7 

+ I 27.6 

-I- I 27.6 

4- 511 



1 + 



450 



492 



501 



500 



512 



4- 
+ 

— I 



16.4 
16.9 

15.7 
15.7 
45.9 

35.2 
57.7 
57.7 
54.8 
14.6 



538 



— 2 49.5 

— 46.1 

— 2 30.9 

— 28.2 

— 19.9 

— 2.0 

— I 57.1 

— I 3.8 
4- I.I 

— 12.0 



541 -^- 36.3 

4- I 29.8 



530 



-h I 28.8 



375 
420 — 



-1- 


13.5 


4- 


I 21.3 


4- 


15.8 


4- 


15.8 


— 


I 13.4 


4- 


45.4 


4- 


II. I 


— 


2 28.4 



- 3 17.6 

- 43.3 



No. 



5 
38 



Apparent N. 
P. Distance. 



89 55 15.7 

341 46 35.4 

24 59 20.9 

70 7 41.7 
98 59 8.1 

37 32 7.5 

13 43 18.9 
105 29 31.4 

15 18 5-2 
52 9 22.7 

62 50 16.5 
108 26 19.9 
108 26 2.0 

93 21 4.0 

67 12 36.6 

67 44 7.2 
66 42 20.6 
66 41 46.1 
89 56 3.7 

19 28 47.1 
5 51 37.0 
5 51 55.0 

94 50 4.8 
358 36 5.0 

339 34 47.2 
89 55 16.9 

341 46 34.5 
24 56 20.1 

70 7 42.8 



49 

347 



5 6.6 
14 29.2 



98 53 39-2 
60 9 22.2 
62 50 16.8 

83 9 21.6 
108 24 3.1 

108 10 47.1 



64 38 52.6 

106 32 28.2 

66 53 55.2 

66 54 29.1 

358 36 7.6 

89 55 14.7 
40 I 21.5 

341 46 50.5 

33648 9.1 
13 42 46.7 



Miscellan*us 
Corrections. 


^ 


It 


■+■ 0.2 


4- 0.7 


- 2.3 


— 0.2 

• • 


— I.I 


-+-28. 1 


— 0.2 


- 2.6 


- 1.3 


+ 0.8 


- 0.8 


- 0.8 


- 1.5 


- 2.4 

- 2.5 


- 4.8 


— 4.8 


- 1.7 


- 2.6 


-19.7 


- 1.7 


— 2.1 


0.0 


4-0.3 


4- 1.7 


4- 0.3 


- 2.4 


4- 1.4 


— l.'K 



4- 1.0 
4- .0.7 

— I.I 

-|-»i.8 

— 0.3 

— 0.8 



— 2.0 
4- I.I 

- 4.9 

— 4.9 
4- 2.7 

— 0.4 

- 5.5 
4-16.3 

4- 0.4 

- 3.2 



MOON'S— 



Parallax. 



It 



42 6.7 
46 25.1 



Scmi-diam. 



4- 15 34.1 
4- 15 9-4 



6 



42 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 





1 

• 


! 

1 J 




SECONDS OF TRANSITS OVER WIRES. 


CORRECTIONS. 




2 « 

c c 


DATE. 


t- 1 


1 Observe 


• 








Apparent R. 
Ascension. 

1 




JO 

s 


1 


L II. III. 


IV. 


V. 


1 1 
VL VII. VIII 

1 

t 


IX. 


*, . ^ t . ■ Clock Clock 

Mean wire. Insl. ^pparnt. adopted. 


u 2 

— w 1 


1 863. 


1 
1 


m. s. 


1 1 

1 1 
s. s. s. 


/ // 


'1 

s. 


June 5 


I a2 Librae .... 


E. 


. 32.235.036.540.7142.8:44.9" • • , • • 


• • 


43 44.94 


— O.OI — 8. II — 8.10 


14 43 36.83 — O.C>2 




2 a Voxowx Bor., (R.) 


1 E. 


3.4 5.1 6. gi3. 616. 018. 225. 227. 1 


2g.8 


29 16.14— o.io . . — 8.09 


15 29 7.95 + 0.15 




3 a Serpentis . 


E. 


. 43.846.348.054.056.058.0, 4.4I 6.0 


8.5 


37 56.11 -h o.oi — 8.15 '— 8.09 


15 37 48.03 + 0.05 




4 Urania .... 


E. 


1 • 


56.1 5g.2 l.o 7.7 . . 


12. 018. 721. 023.0 4g 9.84— 0.02 . . — 8.09 


15 49 1.73 - 




5 Saturn I, S. 


E. 




47.950.5 52.2, . . . . 

1 


. . 9.3 II. 013.0 59 0.75— 0.02 . . — 8.09 


15 58 52.64J . 




6 1 Saturn 11, N. . 


, E. 


1 
5 7. g, 0.0 


2.1 


4.3 6.5 . . 


• • 


59 2.16— 0.02 . . '— 8.09 


15 58 54-05' . 




7 


Anonymous . 

• 


E. 

1 — . 


. 2g. I 31 .4 33. 038. 640. 843. 04g. 3 50.8 52. g 


5 40.9g -4- 0.01 . . — 8.09 


16 5 32.91 . . 




8 ' r Hcrculis . 


1 E. 


. 3S.742.544.5 53.7'56.5i59.4i 8.4 10.8 14.3 
. ,16.0 18.7 20. 5 27. 3l2g. 6,31. 7 38.740.443.2 


15 56.53 -4- 0.05 . . — 8.09 


16 15 48.49'+ 0.07 




g 1 a Scorpii .... 


E. 


21 29.57- 0.03- 7.97 - 8.og 


16 21 21.45 — O.II 




lo Polaris .... 


T. 

1 




. . . . 2. 026. o4g. 013. 037.0 . . 


• • 


i0 47.6vS— 3.00 . . — 8.21 


I 10 35.47 -i- 0.14 




II ! /? Arietis .... 


T. 


1 
3 16.4 ig.i 20.727.2 


' ' 1 
2g. 431. 638. 1 3g. 8,42. 5 


47 29.42 -f 0.04 — 8.25 


— 8.21 


I 47 21.25 +- 0.05 




12 


1 a Anetis .... 


T. 


3 39. 242. 143.750. 3,52. 5=54. 7 1.4 3.oi 5.8 


59 52.52+ 0.04— 8.30 !— 8.21 


I 59 44-35 4- o.io 




13 1 a Ceti .... 


, T. 


3 


18. 521. 022. 728. 7I30. 8 


32.738.940.543.0 


55 30.76 -f- 0.06— 8.26 — 8.21 


2 55 22.61 + 0.07 


6 


14 Sun I, N, . . . 


T. 


3 


46. 74g. 5 51.057.8 o.ii 2.3 g.o:io.6 


'.3.4 


59 0.04 + 0.04 . . — 8.21 


i 

4 58 51.87 . • 




15 j Sun 11, S. . . . 


T. 


• 


4.0 6.8 8.5 I5.i'i7.5 i8.526.327.gjo.6 


1 17.23 4- 0.04 . . — 8.21 


5 I g.ot) 


1 i6 1 Mercury I, (center) 


T. 


, 3 


22. 1 24. g 26. 4 33. 4 35. 6 37. g44. 8 46. 4 49. 3 


' 36 35.64 + 0.03 . . 1— 8.21 


6 36 27.46 + 0.24 




17 


o^ (jeminorum 


T. 


3 


3.7 6-7 8.4,i5.6i8.i|20.427.72g.532.5 


26 18.07 -H 0.02— 8.23 ,— 8.21 


7 26 9.8S -»- 0.22 


' i8 

1 


a Canis Minoris 


T. 


3 


18. g 21. 5 23. 2g. I 31. 2 33. 3 3g. 4 41.0^43.5 

1 ' 1 


32 31.21 + 0.06 — 8.12 


- 8.21 


7 32 23.06— O.II 




ig /3 Gerninorum 


T. 


3 


1 ' 
7.g 10.8 12.5 ig. 4 21.724.231.032.8135. 7 


1 
37 21.78,+ 0.03— 8.13 — 8.21 


7 37 13.60— o.a> 




20 Venus I, N. . . 


T. 


3 


25.1 28.0 2g. 5 36. 3 38. 5 40.647. 1 4g.o5i.7 


57 38.42 + 0.04 . . 


- 8.21 


7 57 30.25+ 1.23 




21 


Venus, S. . . . 


T. 


3 


1 

1 . . . . 

1 


1 


• • 


..... 


• ■ 


1 
• • • , • • 

1 


8 


22 


Sun I, S. . 


N. 


2 


1 1 
2.0 4.6 6. 413. 1 15. 2|i7. 324. 1 25.7 


28.6 


1 
7 15.22 + 0.04 . . — 7.96 


5 7 7.30' . . 


- 


23 ' bun II, N. . . . 


N. 


2 


ig.2 22.023.830.632,6 


34.841.543.346.0 


9 32.6414- 0.04 ' . . — 7.g6 


5 9 24.721 




24 1 Polaris, S. P. . . 


N. 


4 


1. 17. 014. 026.0 . . 


. . 1 


10 3g.70 4- 6.25, . . — 7.91 


I 10 38.04 + 0.70 




25 


C Virginis 


N. 


4 


55.257.759.3 5.4 7.5 


9.4'i5.6i7.ijig.6 


28 7.42 -f 0.10— 7.89 j— 7.90 


13 27 59.62 — O.OI 




26 


jy Ursje Majoris, (R.) 


N. 


3 


. . . . 23. 426. 52g. 632. 836. 2 . . 

1 f 


■ ■ 


42 29.70— 0.07 . . 

1 


- 7.90 


13 42 21.73 -1- 0.26 

1 




27 


a Draconis, (R.) 


N. 


1-3 


• • 1 • • 


. . 1 . . . . 


• • 


1 

1 


• 


1 




28 


a Bootis .... 


N. 


4 


34. 9 37. 6 39- 2 45. 7 47. 8.50. 056. 5 58. 1 


0.8 


9 47.84'4- 0.05- 7.92 !- 7.90 


14 9 39. 89- 0.07 




29 


Moon II, N. . 


N. 


3 


58.4 . . 2.8 g.311.7 


13.7,20.5 . . 

' 1 


24.5 


25 11.56+ O.I5 . . 


- 7.86 


20 25 3.85—64.15 


9 


30 


Sun II ... . 


E. 


• 


. . ! . . ,35.g38.2'40.5 


1 

42.544.8 . . 


• ■ 


13 40.38 + 0.06 . . 


- 7.67 


5 13 32.77—65.?! 




31 


Polaris, S. P. . 


N. 


3 


. . I . . 27.0: 1.539.015.51 .... 


■ • 


lo 38.77;+ 7.38 . . '- 7.65 


I 10 38.50-1- 0.44 




32 


/i Bootis .... 


E. 


• 


51.655.157.2 5.2 8.010.6 ig. 021.0 


24.1 


57 7.981- 0.02 . . 


- 7.65 


14 57 0.31 + 0.2t^ 




33 


48 Cephei, S. P. . . 


E. 




. . 23.1 3.9!56.645.4]36.g .... 


• • 


3 46.11'+ 1. 01 . . 


- 7.65 


3 3 39-47 -^- 0.37 




34 


/3 Libia: .... 


E. 




51.554.255.8 i.g 4.0 6.1 12.4 13.7 16.4 

1 • 


10 4.00 + 0.17 — 7.75 


- 7.65 


15 9 56.52 + O.OC) 




35 


^» Bootis . . . . 1 


E. 


1 


24.1 27.1 2g.2 . . . . 


; 1 

. . ;50.i52.0;55.7 


19 39.63+ 0.01— 7.55 — 7.65 


15 19 31.97— O.IO 




36 


\i' Bootis .... 


E. 




.... 35.938.541.143.946.31 .... 


19 41.10+ 0.01 . — 7.65 , 


15 19 33.44 + 13: 




37 


a Corona: Boreal is . 


E. 




1.6 4.7 6.413.2 15.6 


I7.8'24.626.3i2g.i 

1 


29 15.48+ 0.04 . . 


- 7.65 


15 29 7.87 + 0.07 


11 


38 


a Tauri . . . . ■ 


E. 




f 1 

15.7 18.420.026.428.4 

1 1 


1 
30.4 36.gi38.4 


41,0 


28 28.40 0.00— 7.87 

1 


- 7.88 


4 28 20.52 — O.OI 


12 


39 


Sun I, N. . 


E. 




! 1 1 
35.7 38.340.0|46.84g.o 


51. 1 57.859.6 


2.4 


1 

23 48.97 — 0.01 


- 7.88 


5 23 41. oS 




40 


Sun II, S. . . . 


E. 




53. 156. 257. g 4.3! 6.7 


8.915.5,17.1 


20.2 


26 6.66;— 0.01, . . 


- 7.88 


5 25 58.771 . 




41 


a Canis Majoris 


E. 


. 14. 2, 16. g 18.5 24.827.0 


29.1135. 437.0 


39-5 


39 26.93+ 0.02 — 7.83 


- 7.88 


6 39 19.07,- 0.12 




42 


rf Canis Majoris 


E. 


. 54.9,57.859.5 4.2 . . 


13. 217. 7ig. 421. 5 


3 8.52 + 0.03I . . 


- 7.88 


7 3 0.67]- 0.17 




43 


Mercury I . . . 


E. 


1 


23. 726. 328. 034. 636. g 

, i 


39.1145.947.5 


50.4 


II 36.93— 0.01 . . 


- 7.88 


7 II 29.041+ 0.27 

1 




44 


a' Gerninorum . , 


E. 




1 
3.1 6.0 7. 712. 614. g 


1 
17.2 19. 722. 1 


• • 


26 17.37 — 0.02 . . 


- 7.88 


1 1 
7 26 9.47!— o.i5 




45 


a'^ Gerninorum . . 1 


E. 




• . .1 


. . 27.3'2g.2i32.3 


26 17.75]— 0.02— 7.88 


- 7.88 


7 26 9.85 + 0.2C» 




46 


a Canis Minoris . 


E. 


. 18 . 6'2i . I 22 . 728 . 8 31 .0 33 .o'3g. 140. 642 . 2 


32 30.90+ o.oil— 7.77 


- 7.88 


7 32 23.03— 0.13 




47 


/? Gerninorum 


E. 




7.4,10.5 12.2 ig. 2,21. 523. g 30. 832. 5;35. 4 


37 2i.4g|— o.oi — 7.81 


- 7.88 


7 37 13.60— 0.07 




48 


Venus I, N. C. . 


E. 




16.4 ig.22i.ol27.32g.6 

ill 1 


31.838.440.0 

i I 


42.8 


g 2g.6ii 

1 


0.00 


- 7.88 


8 9 2i.73i+ 1.42 



3.8. Wire A used. 
4.7.42. Wire B used. 

7. Observed for Phocsea. 
33. C4, C3, Cg, Ci and B3 in R. A. 
39. Sun had shone on telescope about two minutes. 



y^ 



.r 



OBSERYATIONS WITH THE TRANSIT CIRCLE. 



43 



y Circle 
g Division. 



1 54 i8 

2 l68 12 

3 ' 31 58 

4 61 58 

5 57 12 



MICROSCOPE MICROMS. 



6 

7 

S 



10 

II 

12 

13 

14 

15 
16 

17 

iS 

19 
20 
21 

22 

23 

24 
2^ 

26 
27 

23 

29 

50 

31 
32 

33 
34 



39 
40 



57 12 

35 o 

352 12 

64 56 



18 40 
16 o 
35 16 

15 50 

16 22 

13 38 

6 40 

33 16 

10 30 
15 56 
15 56 



16 
15 

38 
191 



10 

38 

44 

2 



206 2 
18 58 
56 30 



357 56 
296 6 

47 42 



\^ 10 

3<> . 

37 II 40 



22 36 
15 22 

15 54 



41 


55 22 


42 ' 


65 2 


43 


14 54 


44 ' 


6 40 


45 


6 40 


4^' 


38 16 


47 


10 30 


4> 


17 12 



TELESCOPE MICROMETER. 



c c 



I. 



II. 



r. 



8.5 
II. 4 

2.3 
4.0 

10.8 



7.8 

12.5 

i.o 

3.5 
10.7 



10 



10.8 I 10.7 

13.8 13.0 

13.5 I IO-5 

8.5 I 6.6 



17. 1 

17.5 
22.1 

11. 

14.0 
10.6 
19.4 

14.4 

16.2 

9-5 
9-5 

18.8 
14.8 

15.6 

13. 1 

4.6 
12.4 
12.5 



15.4 
9.8 



16. 1 
15.8 
20.9 

9.0 

II. 3 

9.3 
16.5 

13. 1 

14.8 
9.0 
9.0 

17.8 
13.7 

15. 1 
13.9 

7.5 
II. I 

II. 8 



13.6 
9.2 



10 24.8 I 24.2 
17.5 ' 15.0 



10 26.0 
10 12.6 

16. 1 

10 15.8 

17.6 

13.7 

10 10.6 



24.8 

12.5 

13.7 
136 

16.3 

12.3 

10.3 





17.0 


16.3 




17.0 


16.3 


10 


14.0 


12.8 


10 


18.4 


174 


10 


17.9 


16.8 




Apparent 
Zenith Dis- 
tance, South. 



E 

o 
« . 

s " 



54 21 52.0 

168 16 17.2 

32 ,2 26.5 

61 59 14.5 

57 15 40.7 

57 15 16.9 

34 58 44.7 

352 15 53.5 

^4 59 47.3! 



18 43 44.2 
16 3 16.8 
35 18 51.9 

15 53 22.5 

16 24 56.0 
13 40 29.5 

6 43 7.6 
33 19 34.5 

10 33 1.0 

15 59 32.8 

16 o 8.9 

16 13 52.6 
15 42 22.7 

38 48 7.5 
191 4 44-5 

206 6 34.5 

19 I 0.8 
56 34 50.0 



357 58 47.0 
296 9 49.0 

47 46 13.7 



II 43 43.5 
22 38 53.0 



15 
15 
55 
65 
14 



25 
56 



18.9 
52.0 

24 43.1 
3 1.4 

8.3 



58 



6 43 8.8 

6 43 4.9 
33 19 32.0 

10 33 1.7 
17 15 31.9 



397 

383 
381 

357 



319 
293 
292 



2S3 
266 

• ■ 

317 
391 



397 
420 



340 

• ■ 

335 



330 



Refraction.' ^P??',?' ^' 
V, Distance. 



I 2 59.9! 450 + 



+ 

+ 

-f- 

4- 

+ 



+ I 



-h 



-f 2 

4- 
+ 

-I- 
+ 
4- 
H- 
■f 

+ 

4- 



4- 
4- 



18.9 
II. 8 

35.5 
45-4 
27.9 

27.9 

39-7 

7.7 
0.9 



18.9 
16. 1 

39-3 

15.7 
16.2 

13.3 
6.4 

35.9 

10.2 
15.6 
15.6 

16.0 
15.5 

450 
II. o 



95 29 32.1 

44 50 15.8 

83 9 23.2 

113 7 21. I 

108 23 29.8 

108 23 6.0 
86 5 45.6 
43 22 7.0 

116 8 9.4 



69 50 24.3 

67 9 54.1 
86 25 52.4 



^ .A 

P C 

c o 

— o 



4- 0.6 

4- 1.0 

i-i- 1.4 

- 4.9 

- 0.8 

- 0.8 

- 1.3 
4- 1.8 



0.8 

0.3 
0.7 



66 


59 


59-4 


— 


2 


4 


67 


31 


33.4 


— 


2 


.4 


64 


47 


4.0 




2 


.0 


57 


49 


35.2 


4- 





.1 


84 46 


31.6 


4- 





.1 


61 


39 32.4 


— 


0. 


7 


67 


6 


9.6 


— 


5. 


I 


67 


6 


45.7 


— 


5- 


I 



+ 27.5 

+ 19-3 
4- I 25.2 



67 20 29.8 

66 48 59.4 

89 55 137 

40 I 25.7 

14 59 19- 2 

70 7 41.3 

107 42 36,4 



— 2.0 


49 5 6.2 


- I 54.9 


347 14 15.3 


+ I 2.4 


98 53 37-3 



1.0 



4- II. 8 
+ 23.3 



15.2 
15.8 
20.0 
58.1 
14.8 

6.5 

6.5 

36.3 
10.3 

17. 1 



52 9 22.1 
62 50 16.5 

73 45 37.5 

66 31 55.3 

67 3 29.0 
106 32 24.3 
116 II 20.7 

66 4 44.3 

57 49 36.5 
57 49 32.6 
84 26 29.5 
61 39 33-2 

68 22 10.2 



- 2.4 

- 2.4 

- 1.2 

- 0.8 

- 2.5 
4- 0.5 



- 0.6 
-11.81 

- 1.0 

0.0 , 
4- 2.6 

- 1.3 

- 2.3 

- 2.4 

- 1.4 

- 0.8 

- 2.5 

■f 1.0 

- 2.9 

- 1.6 

- 0.1 

- 6.0 



No. ; Barom. 



External 1 Attached 
Therm. ' Therm. 



m. 



moons- 



No. 



/^or summary of the elements of reduction see page 3. 



Parallax. 



t II 



Semi-diam. 



/ >' 



29 - 45 5.5 + 14 47-9 



44 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



13 



1868. 
June 12 



9) 

a 

a 



I 
2 

3 
4 

5 

6 

7 

8 

9 
10 

II 
12 

13 
14 
15 

16 

17 
18 

19 
20 

21 
22 

23 
24 

25 

26 

27 
28 

29 

30 

31 
32 

33 
34 
35 

36 

37 
38 

39 
40 

41 
42 
43 
44 
45 

46 
47 

48 

49 
50 



r 
S 



OBJECT. 



Venus, S. C. 
fi Corvi . 
d Virginis 

Polaris. S. P. 



Virginis 



a Scorpii . 
15 Draconis 
a Camelopard., 

Thetis . 

Herculis 



a 



Eunomia 

Diana 

Polyhymnia 
>^ Sagittarii 
/i Sagittarii 



S. P. 



rj Ursae Majoris, (R.) 

7 Bootis .... 

a Draconis 

a Bootis, (R.) 

L Cassiopeac, S. P. . 

5 UrsxMinoris 
<• Bootis . 
a* Librx . 
a^ Librae 
li Bootis . 

Saturn I 
Saturn II . 

6 Ophiuchi 
Moon II, N. 

a Andromeda; 

y Pegasi . 
Polaris . 
e Ceti . . . 

7 Piscium 
a Ceti . . 

Sun L S. . 

Sun II, N. . 

Mercury I, (center) 
a Canis Minoris 
/? Geminorum 

Venus I, N. . 

Venus, S. . . . 
6 Virginis 

Polaris, S. P. . 
>=* Ursae Minoris 

a Cor. Borealis, (R.) 
a Serpentis 

Saturn I, S. 

Saturn II 

Phocnea 






T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 



lA 

O 



E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 

E. 

I 

E. ' 

T. 

T. 

T. 

T. 



T. 
T. 
T. 
T. 
T. 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



1 / 






I. 



II. 



123.5 

1 4.. 

.55.0 



III. 



IV. 



26.328.034.5 

6.6,12.2 14.2 

. . 35.0 10.5 

57-959-3 5-4 



,10. 4; 14. 6, 16. 8 
20.2 



V. 



VI. 



36.7 

16.3 

46.0 

7.4 



VII. 



VIIMX. 



Mean wire; Inst. 



49045 
1 8 . 4 20 

25.058 



9-4 



26.129.331.6 
23. 024. 631. 1 33.335.3 

I . . 148.358.4 3-1 
,43.545.<^>i47.850.i 



;32.7'27.i 22.0 



8.219.7,26. 1 51.4 



0.0 



17. 1 



15 

42 

41 
57 
52 
10 



.6 

.4 
.0 



47 
26 



.350. 
. I 28. 



173 19. ^> 



.1,44 

.943 
.6 

.2 

.1 



.34S, 
. 6 46 , 



m. s. 



27 36.77 + 
^1 3 16.33 -+- 
. I 10 46. So -f 

28 7.44 + 
I ' 

1 42 29.26 — 

i; 48 33.23 

o 58. 17,— 

9 47 >4' 
18 21.80 + 



s. 



Clock 
appar'nt. 



I 



s. 



Clock 
adopted. 

s. 



Apparent R. 
Ascension. 



■/ r 



h. m. 



0.03 
0.01 
2.44 
o.oi 



- 7.94 - 

- 7.<;o - 

- 7.86 - 



0.05 
o.o<> 
o. 10 
o.(.x> 
0.17 



8.834.5,41.0,51.9 28 o.iS— 0.21I 



9.1,12.013.720.522.825.2 
20.423.124.8 

3i.9'34.736.i 
52.055.1I57.2 



5.5! 8.0 10.6 



48.050.6,52.2 

. . I . . I57.8; 0.0 2.2 

23. 3'25. 9:27. 433. 3:35. 5 
12. 7,14. 916. 623. 1J25. 1 

29.2 32. 0,33. 9*40. 7 43.0 



3 
3 
3 



2 

3 

3 
3 
3 



3 
3 



22.525.2'26.733.I 



21.2 



23.8 



21.023, 
18. 420. 



44.5 

2.5 



47.5 
5.3 



25.4 



31.5 



25.231.6 



35.1 
52.0 

33.7 
33.7 



4.3 
37.5 



32.2133.936.7, 

41.743.246.0 

53-2 

19.2 



54.7157.3 
20.924.2 



9.2 11.0,13.9 
6.6 



39 22.90 — 0.01 
43 33-22-4- 0.02 
43 44.65 -4- 0.02 
57 8.06— 0.03 



■ * I 

7.95 !- 

• i~ 
- 7.S6 I- 



57 0.82 -f 
57 2.18-f 



43.^*^45.347.9 7 35-54,+ 



27-2,33.235.037.5 
45. 3!52. 354-1 56.9 



22.428.630.5 



l8.7'21.2 



7-6 



50.1 



4.1 



10.5 



52.9 

• • 

6.7 



49.4 



55.4 



6.913.9 



23.0 



29.0 



12.4 19.2 



54.5 



i.o 



8.314-4 



57.7 
16.0 



37-3 
16.0 

35.7 



43-6 
41.0 
41.9 



45-347-8 

• « j • ■ 

43.546.0 
35.842.2I43-746.4 
32. 638.7-40. 342. 7 



42.0 
'55.0 



43-646.3 
31734. 4 



II. 2 

16.0 

51.5 

■ • 

13.5 



47.7 
36.1 

41.5 
13. 715. 5 



18.7 
58.5 



15.7 



35.237.8 



20.6 



3.5 



13.0 
1.6 



53.9 

• ■ 

43.5 
23.6 



27.4 
20.4 
8.6 
17.624. 1 



39-4 



51.6J54.756.6 
41. 143. 846.0] 



33.2135.9 
16.2119.1 

49-552.2 



45.8 

3.8 
53.7 



38.1I44.7 
21.027.9 

54.0 0.4 



31.0 
21.6 

3-3 

• • 

16.5 

51.0 

8.1 



0.4 

18.3 



33.0 
23-9 

5-4 

• • 

18.5 
25.0 
15.0 



6.8 
24.8 



8.6 II. 3 
26.629.3 



39 25.04.-f 
I 43.00 — 

6 35.18J 
10 53.30- 
17 33-63' -h 
24 33-70,+ 
55 30.564- 



0.02 
0.02" 

O.OI, 
O.OlI 



56.0 

• • 

45.7 
25.527.5 



58.1 

• • 

48.0 



39. 240. 743-5 



30.8 
II. 7 



32.635.5 

I 
13.6 16.3 



0.00 
i.iS 
0.05 
0.04 
0.04 



27 57.96 -h 0.03 
30 15.96 -h 003 



7.62 

• • 

0.01.— 7.97 
7-98 



7-99 
8.00 

7.87 



24.626.228.7 



21.7 



32 31.03-1- 0.04 
37 21.57;— 0.03 



5.7 



54-9 



29.6 
26.4 

3.5 
26.1 

47.9 



32.0 

32.3 
58.4 
28.1 
50.0 



4.2 
53.0 
50.2 

31.633.4 



38.8 
49.2 



34.5 



8.3 
57.6 



35.9 



40.343.3 



53.2 
36.1 



0.5 

3*8 .'5 



56.357.8 0.5 



6.4 9.016.3 18. 021. 2 



56.0158.5 
46.949.3 

30.332.7 
2.6 4.7 



5.9 8. III. 2 
56.357.7" 0.8 
39.841.544-6 
II. 213. 015. 7 



II 3 -20-1- 0.04 

• ■ • « • 

3 16.45 -+ 0.05 
10 50.78 -f 1.29 
21 8.25 — 0.05 



37 55.78- 0.04 
56 44.62-1- 0.05 
56 45.78'4- 0.05 
59 25.32-1- 0.05 



21 29.63-1- 0.05 

28 26.i7|— 0.03 

41- 3.50-1- 0.12 

50 26.02|-f 0.05 

8 47.86 -h 0.04 

19 6.404- 0.06 

28 56.03 -f- 0.06 

42 46.99-1- 0.05 

57 3o.34|-h 0.05 

6 2.59,-1- 0.05 



7.93 
7.98 



— 8.04 



.88 

.88 
.88 
.SS 

.88 
.8^ 
.88 
.88 
.88 

.88 
.88 
.88 
.88 
.88 

.88 
.88 
.88 
.88 
.88 



7.88 

8.0 

8.0 

8.0 

8.0 

8.0 
8.0 



12 

13 
I 

13 



27 

3 
10 

27 



13 42 

13 48 

14 o 

14 

2 18 



S. I 

7 . 
28.92 

S.46 
41.36 

59-57 

I 

21.33' 

25-35r 
5o.i<>. 

39-*)<- 

14 Oi) 



u.i: 
o.ii 

I I? 

' • . 02 

0.1: 
0.54 



14 27 51. (^) — 0.34 

14 39 15.01 -h u.'Xi 

14 43 25. 3<' 

14 43 36.19I— 0.04 

14 57 0.15 -f- O.U' 



15 56 

15 56 

16 7 

23 39 
o I 



7.96 



— 8.0 

— 8.0 

— 8.0 

• 

— 8.0 

— 8.0 

— 8.0 



- 8.05 



— 8.06 



8.05 
8.07 



8.0 
8.0 
8.0 
8.0 

8.0 
8.0 
8.0 
8.0 
8.0 

8.0 
8.0 
8.0 
8.0 
8.0 



o 
I 
I 
I 

2 

5 
5 



6 
10 

17 
24 

55 

27 
30 



52.9^>j 

54.32; . . 

27.67 — 0.24 
17.17 —62.2' 

35.l5«-r- 0.09 

27.30 -H O.Cv^ 

44.11 -h 3.5«' 

25. 67'-^- o.ol 

25.73 -h 0.0- 

22.59 — U.lU 

I 

49. 9^ . . 

7.9^, • 



7 32 23.0f»[— O.li) 

7 37 13-59- 0-^'7 

8 10 55.23 - i.+t 

■ • * • I • ■ 

13 3 8.40-^ 0.03 

I 10 44. ot* -}- 3.04 

15 21 0.22 -h 0.14 



15 37 47-93 - <>-^'5 

?5 56 sbAfCh 

15 56 37. S2 

15 59 17.36 - 

16 21 21.67 h O.U.' 
16 28 18.13 — 0.14 

4 40 55-61 -}- 0.24 

16 50 1S.06 . , 

17 8 39.8<)+ o.<\: 

17 18 58.45 . . 

17 27 48. 08 . . 

17 42 39.03 

17 57 22.38 -f- 0.01 

18 5 54.63 -t- o.crf,. 



1 . 9 . 1 8 . 29. Seems one rev. wrong. 
5. Seems five revs, wrong. 
13. Wire B used. 
26.44.47.48. Wire A used. 

33. Seems two revs, wrong. 
35.43. Bisections at sets B and D. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



45 



i2 



Circle 
g ' Division. 



MICROSCOPE MICROMS. 



2 I 

3 , 
4 

5 I 



7 



9 

10 



No. 



17 12 

6i 30 

43 40 

307 28 

38 44 
191 2 

160 8 
20^) 4 
160 56 

285 42 



11 322 

12 ' 11 

13 ' 54 

14 54 



34 
12 

18 

18 



15 357 54 



16 




, 17 




' 18 


42 12 


19 


43 54 


20 


10 28 


1 1 
21 


24 22 


22 




23 1 


47 42 


24 


24 TO 


25 1 

1 


35 16 


26, 


15 50 


27 


15 20 


23 


15 12 


29 , 


33 16 


30 1 


10 30 


■ 3' 1 


17 26 


32 1 


17 26 


33 


43 40 


34 


307 28 


35 . 


326 32 


36' 


16S 12 


37 , 




3^ , 


57 6 


' 39 




40 


33 8 


1 
41 


64 58 


42 


329 48 


43 


» a 


44 


53 28 


45 


24 18 


4^ 


1 

71 34 


47 ' 


74 22 


4S 


65 28 


49 


69 12 


50 


• • 




r. 



// 



10 17.9 
10 9.0 

13.7 
6.0 

12,3 

II. 8 

5.0 

5-5 
10 II. 3 

8.7 

9.6 
12.2 

13.5 

13.5 
10 13.9 



14.3 
3.0 

3.8 

15.0 

14.9 

19.5 
10.4 

8 28.2 

9 0.4 
9 4.6 

lo 6.9 
10 1.8 

10 17.2 
10 17.2 

15-5 
II. 8 

17.4 
10 25.1 

12.0 

13.0 

8.3 
10.3 



9.8 

7.5 

I3-0 
12.8 

9-3 
20.6 



II. 


III. 


II 


II 


16.8 


1 1. 2 


9.1 
13.5 

5.6 

10.3 


3.3 
9-5 
2.4 
6.0 


12.4 

4-5 

7.0 

12.7 

7.2 


8.3 
1.2 

3.5 

7.8 

4.5 


9.8 
10.5 
12.5 
12.5 
II. 


6.8 

6.5 

8.8 

8.8 
8.6 


13.3 
2.5 


8.5 
28.8 


4.0 


0.4 


14.3 


9-7 


12.6 
17.5 


9.7 
12.6 



9.0 
25.2 

2.6 

7.6 

5.5 

0.4 

16.0 
16.0 

15. 1 

10.5 

15.8 
24.8 

II. 2 
II. O 

7.7 
8.4 



8.5 
5.0 

II. 7 
12.8 

7.5 
19.2 



4.4 

22.4 

24- 3 

0.5 
0.0 

26.0 

10.8 

10.8 

9.0 

7.5 
12.6 

20.5 

6.4 

5-4 

2.4 

5.3 



3.6 
0.0 

5.9 
6.7 

2.5 
13.5 



TELESCOPE MICROMETER. 



a d 



Apparent 
Zenith Dis- 
tance, South. 



17 15 54.8, 
61 32 9.3 

43 42 51.9' 
307 30 56.9, 

38 46 51 -8' 



4: 

,8| 

9 

4 

.6 



322 37 7.5 
II 15 24.0 
54 22 38. ol 
54 22 51. I 

357 58 46.4 



42 14 7.6 

43 47 22.0 
10 31 51.5 

24 26 15.9 




o 
E 



Refraction. 



47 44 24.3 
24 13 24.9 
35 18 49.2 



10.5 
51.6 

51.7 

48.3 

1.6 



17 28 24.7 

17 29 6.8 

43 42 19.8 

307 30.55.0 

326 35 49.1; 

168 16 18.7 

I 

57 9 52.8 

33 12 57.7 

64 59 46.9 
329 50 48.8 



53 34 58.4 
24 20 31.3 

71 36 59-4 
74 27 31.3 
65 33 12.2 

69 16 22.0 



Barom. 



External 
Therm. 



Attached 
Therm. 



in. 



For summary of the elements of reduction see page 3. 



370 -f 

-f- 



— I 



+ 



4- 



-f 



- 3 



II 

17. 1 

42.3 

53.4 
12.7 

45.0 

II.O 

20.2 
27.6 

19.4 
16.5 



|- 430 

-f II. 2 

-h I 18.6 

'+ I 18.6 

I— 2.0 



-: 



51.6 

55.2 
10.7 



443 
438 
402 



'+ T 



l-f 



H- 
352 -h 
308 -h 
. . -h 
318 -h 



320 
320 

379 

382 

433 



— I 



-h 26.0 



2.2 

25.4 
39.8 

15.8 
15.2 
15.0 
36.2 
10.2 

17.4 

17.4 

53.3 
12.6 

37.3 



- 11.7 



. . -I- I 27.3 

437 i+ 37.1 

439 l-H 2 0.7 

• • ,- 32.9 

443 - 

. . -f- I 16.8 I 

463 -h 25.8 j 

. . |-h 2 49.4 I 

465 -h 3 21.6 I 

. . '+ 2 4.7 I 
-h 2 29.5 

473 



Apparent N. 
P. Distance. 



3 



(A 

c 
c o 

.2 o 

SO 



// 



// 



68 22 33.1 — 6.0 

112 40 12.8 0.0 

94 50 6.5 ,-h 0.1 

358 36 5.4 -+- 1.0 

89 53 58.0 —76.6 



40 I 24.8 
70 56 17.6 

24 59 17.7 

70 7 56.2 

336 48 8.3 

13 42 45.7 

62 21 56.4 

105 30 17.8 

105 30 30.9 

49 5 5.6 



- i.o 

- 1.4 

- 3.2 

+ 15.9 
-+- 0.4 

- 2.7 

- 1.4 

- 0.5 

- 0.5 



93 21 20.4 1 + 15.9 

95 4 38.4 ! 

61 38 23.4 ,-+• 0.7 



75 33 3.1 

98 51 47.7 
75 20 I I. 5 
86 25 50.2 

67 047.5 
66 28 28.0 
66 21 27.9 
84 26 45.7 
61 39 330 

68 35 3.3 
68 35 45.4 
94 49 34.3 

358 36 3.6 
17 41 33.0 



-h 1.0 

- 3.9 

- 0.5 

- 1.8 

- 2.3 

- 2.3 

- 2.6 
-1-14.6 

- 0.4 

- 6.2 

- 6.2 

-32.1 

- 0.8 
-f 0.3 



62 50 14.2 -h I.I 
108 17 41.3 — 0.8 \ 
84 19 56.0 



116 8 8.8 

20 56 37.1 

104 42 36.4 

75 27 18.3 



- 5.0 

4- 0.9 

+ 1.2 

- 6.2 

-h 0.6 



122 46 10.0 |— 4.5 
125 37 14. I ,- 4.3 
116 41 38.1 I— 6.0 



120 25 12.7 



- 0.5 



No. 



19 



MOON'S— 



Paraliax. 



f/ 



38 0.1 



Semi-diam. 



i» 



-h 15 I .0 



46 



OBSEBVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
June 13« 



14 



15 



JO 

a 



I 
2 

3 

4 

5 
6 

7 
S 

9 
10 

II 

12 

13 
14 

15 
16 

17 

18 

19 

20 
21 
22 
23 

24 

25 
26 

27 
28 
29 

30 

31 
32 
33 
34 

35 
36 

37 
38 
39 

40 

41 
42 

43 
44 

45 
46 

47 
48 

49 
50 



V 
a 

a 

I 



OBJECT. 



6 Ursae Minoris 
y Pegasi . 

Moon II 
f3 Ceti 
€ Piscium 

Polaris . 

Polaris , 

Moon II 
rj Piscium 
o Piscium 
ji Arictis . 

tf Tauri 
^ Pcrsei . 
a Tauri . 

Sun I, N. . 

Sun II, S. . 
y Geminorum 

Mercury I, mean . 
a Canis Minoris 

(i Geminorum . 
Venus I, N. L. 
Venus, S. . . . 

Polaris, S. P. . \ 



Virginis 
Bootis . 
Draconis, (R.). 
Bootis . 
Cassiopeae, S. P. 



5 Ursae Minoris, (R.) 

(i Ursae Minoris, (R.) 

/3 Librae, (R,) . . 

y Ursae Minoris . 

a Coronae Bor., (R.) 



a Sierpentis . 

C Ursae Minoris 

(J Scorpii . 

r Herculis . 

a Scorpii . 

15 Draconis . 

Elpis 
f Ursae Minoris 
a Herculis . 

Eunomia . 

Diana . 

Polyhymnia 
7 Serpentis . 
I Aquilae . 
a Lyrae 
51 Cephei, S. P. 



> 

u 

o 



T. 
T. 
T. 
T. 
T. 
T. 

N. 
N. 
N. 
N. 
N. 
N. 
N. 
N. 
N. 

X. 
N. 

N. 
N. 
N. 

N. 
N. 
N. 
N. 
N. 

N. 

N. 
N. 
N. 
N. 

N. 

N. 
N. 

N. 

N. 

X. 
X. 
X. 
X. 

X. 

X. 
X. 

X. 
X. 
X. 

X. 

X. 
X. 
X. 
X. 
X. 






3 
3 



3 
4 

4 
4 

4 

3 
3 
3 



3 

31 

3 



3.2 
I 



5 
5 
4 
5 
3 

3 
4 
3 
5 
3 

4 

5 
4 

3 

4 

5 
1.2 

5 
5 
2.3 

2 
I 

3 
4 
3 
3 



SECOXDS OF TRAXSITS OVER WIRES. 



rORRECTIOXS. 



I. 



22.6 

1 1 1 . 5 

'53.1 

1.7 



II. III. IV. V. I VI. = VII. VIII, IX. Mean wire.' Inst. 



25.1 

■ • 

16.4 

33.0 
46.9 

15-8 
3.5 

• • 

0.0 
34.2 

18.8 

7.7 



12 
25.227, 

14. 11$ 

55.S57, 

4.3' 5 

8, 

6. 

27.729 

23.835 

. . ^31 

19. 1 20. 



I 



,048.022. 

033.235. 
,721.823. 

4 3. 91 6- 
8 12.014. 

031.055. 



35.8,37 

48.753 
18.320 

I 

6.1' 8 

• • J29 
2.6, 4 

37.038 

2I.2'22 

I 
10.717 



34.137.038 



7.0 



55.1 
20.2 

29.6 

34.9 
52.6 



,030.054. 

335. ^'^37. 

431.733. 

833.835. 
725.1 29. 

j ' 

,442. 046. 

455.958. 
,126. 528. 

1 

O1I4.2 16. 

932.334. 
I 10.6 12. 

5,45.347. 
829.031. 

; I 
019.321. 

145.247. 



056.031.0 . . 

337.443.745. 
926.032.433. 

08.1 14.6 16. 

1 16.322.324. 

017.040.0! . . 

015.0 

639.646.047. 
835. 9,42. 2 43. 
837.842.043. 
433.638.239. 

I i ' 
450.955.256. 
3 0.5 3.0 7. 
730.837.038. 



348.0 
9 3^). 5 

319. 1 
026.4 



550.2 

846.4 
546.2 

742.5 

I I 

859.6 
8 9.6 

641.3 



719.Q.25.427.330.1 
636.838.9 . . . . 
614.7.21.222.725.4 
449.756.358.0 0.8 
133.139.2,42.843.4 



I 



724.126.332.735.7, 
349.6156.057.7 0.4 



I • • 



22.018.5j . 
. . 132.5 7.045.021. 



m. s. 

15 21.92 

6 35.30 

27 23. 98 

37 6.03 
56 14.10 

10 54.48 

■ 

10 54.20 

16 37.62 

24 33.80 

38 33.77I 
47 29 41 

39 46.34i 
45 58.23 

28 28.57' 

36 16.70 

38 34. 5<^. 
30 12.64, 

25 47.47 
32 31.04 

37 21. 6<) 
13 47.27 



-I- 



s. 

0.45 
0.04 

0.04 

0.05 

0.04 

I. lb 



^ Clock 
appar'nt 

s. 

• « 

8.12 



8.01) 
8.04 



- 4-73 

-h 0.13 

-h o.ii 

-f 0.13 

+ 0.10 

-h 0.09 

H- 0.07 

-f- O.II 



8.14 
8. II 
8.05 

8. II 
8.12 
8.10 



-1- o.ck; 


• • 


H- o.oc> 


• • 


-h O.II — 


8.03 


-h 0.09 


• • 


+ 0.14 — 


8.04 


1 
-h 0.07 — 


8.10 



52.0 
28.1 

2.1 
43-6 

• • 

29.0 

38.8 



36.4 

• • 

35.1 

28.8 



57. 759- 
23.1124. 

35.8,39- 

37.639. 
46.1I42. 



54.6 

36.5 
4.9 



44. 

56. 
41. 



3i 5.41 7.4 9. 
731.133.235. 

3153.858.8 3. 

2145.748.050. 

I 26.921.6 16. 



352.7, 1.5 9. 
. . 18.325. 

M. • • I • ■ at 

8 1.9 8.615. 
7113. 6'i6. 018. 



10.7 . . 24.0 ) 
358.5. .... 

415.517.2 19.6 
442.943.646.2 
418. 021. 727. 7 
I56.5'58.i i.o 
5 1.057.050.6 

I I I 

6 18.4 . . . . 

8,49.154.9 4.7 

• . I 
48.8 

29.6 



-h o.io 



• Clock 
adopted 



s. 

8.01 
8.01 
8.01 
8.01 
8.01 
8.01 

8.07 
S.07 
8.07 
8.07 
S.07 

^.07 
8.07 
8.07 

8.07 
8.07 
8.07 
8.08 
8.08 

8.08 
8.08 



. Apparent R. , 
I Ascension. 



P - 

c c 



-^ 
o 

X 



h. m. 

18 15 
o 6 
o 27 

o 36 

56 

1 10 

I 10 

• I 16 

I 24 

I 38 
I 47 



s. ' s. 
13.46 -h 0.14 

27.33+ O.Oi 

16.01 — 62.7^ 



5S.07-U 

6.13 — 

44.29 -h 



O.Il 
0.'''2 
2.>7 

I 
41.40 — 0.()t) 

29.68—63.^!^ 

25.84'-}- 0.12 
25.83 — 0.02 
21.44 — 0.02 



3 39 38.36 -»- 0.04 

3 45 50.23 +- 0.0^' 

4 25 20.61 4- 0.03 



5 

5 

6 

7 

7 



36 S.72 
38 26.52 
30 4.6S 

25 39.4*^ 
32 23.10 



0.03 
0.29 
0.06 



7 37 13. 6S -f- 0.02 

8 13 39-29-^ 1.4^ 



^^10 44.91 + 6.95 



— 8.10 I I 10 43.76 



28 7 . 40; 

48 33.27' 
o 58 68, 

9 47.90! 
18 21.60 



235.340.4 
I 25.026.7 



28 

51 
10 

21 
29 



1.30' 

18.18: 

4.37 

8.51 
15.86 



46. 2147. 753. 956. 

. . 42.752.6 2. 

31. 733. 3,40. 042. 

42.6,45.053.756. 

24.827.229. 



058. r 4. 
5 12.622. 
244.451. 
659.7, 8. 
531.834. 



2 5.7 8.3 

y • • • • 

052.755.4 

5jio.7i4.5| 
o . . I . . 



-h 0.19 

+ 0.13 

- o.30| 
-h 0.13 
+ 0.58 

— 0.69 

— 0.61 
-h 0.18, 

- 0.34' 
-h 0.03 



—8.02 — 

- 8.06 - 

• ■ 

— 8.12 ,- 



27 55.971-H 0.17 

49 2.62;— 0.60' 
52 42.19V 0.26 
15 56.68 -h o.oi 



26.5 
59.1 



14.821.026. 

39.3'40.7 47.3'49. 

. . |2i.8|38.852. 

37.8,39.3,45. 8147. 
31. 933. 741. 243. 

. . 122.625.1,27. 

. . I41.9I44.1I46. 

29.330.8,36.838. 

1.6' 3.3' 9.4 II. 

• • |35.8'38.5'4i. 



732. 238. 0| . . . . 
451.057.059.0 1.3 
i| 6.822. 
950.056. 

445.753. 



31 . . I . . I 
2,57.7 0.4 
154.957.8 



40.0,46.014.3151.0 



730.232. 
648.8,50. 
940.947. 

613.719. 
243.7,49. 



9 . . 

9l . . . . 
048.5 51.0 
821.423.9 
1,50.9^4.2 



21 29.46 


4- 


0.28 


28 26.54 


— 


0.25 


52 49 04 


-1- 


0.22 


59 52.36- 


1.35 


S 47.80' + 


O.I4 


16 43.39 


+ 


1 


0.30 



8.16 
8.14 

• • 

8.10 



- 8.0S '- 



25 27.70-1- 0.31 
40 46.441-1- 0.28 
14 38.86-1- 0.20 
28 II. 531+ 0.21 



7.3 



32 38.52 
37 25.42 



+ 0.05 
H- 3.61I 



— 8.10 

— 8.08 

— 8.09 



8. 
8. 
8. 
6. 
8. 

8. 
8. 
8. 
8. 
8. 

8. 
8. 
8. 
8. 
8. 

8. 
8. 
8. 
8. 
8. 

8. 
8. 
8. 
8. 
8. 
8. 



o 
o 
o 
o 
o 

o 
o 
o 
o 
o 

o 
o 
o 
o 
o 

o 
o 
o 
o 
o 

o 
I 
I 
I 
I 
I 



13 37 59-47- o.fX) 

13 48 25.30— o.a> 

14 o 50.28 -h 0.03 
14 9 39.93 + 0.03 

2 iS i4.0vS-r- 0.36 

14 27 52.51 -h 0.36 

14 51 9.47+ O-M 

15 9 56.45 + 0.03 
15 21 0.37-1- 0.37 
15 29 7.79+ 0.01 

15 37 48.04 -*- 0.0(1 
15 48 53.92+ 0-22 

15 52 34.35 + 

16 15 48.59 + 
16 21 21.64,-^- 



0.03 
O.lq 
0.02 



i6 23 18.19— ^-^3 

16 52 41.16 . . 

16 59 42.91 + o.iS 

17 8 39. S4 — 0.02 
17 16 35.59 • • 

17 25 19.9I1 . ., 

17 40 38.61 

18 14 30.95, O.Oi} 

18 28 3.63 -f O.OI 
18 32 30.46;— 0,02 

6 37 20.92 -r- 0.27 



18. The bisections made by first bringing wire d on S. L, and then wire a on X. L. 
21. Last bisection made 20" after passing VII. 
30.31.33. Bisections at sets B and D. 
41.44.45.46. Wire A used. 

50. C2, Ci, and B in R. A. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



47 



t i Circle 
g Division. 



:>: 



MICROSCOPE MICROMS. 



TELESCOPE MICROMETER. 



I. 



1 

2 I 

3 ' 

4 ' 

5 
6 



S 
9 

10 

II 

12 

13 
M 

16 

17 
iS 

10 

20 
21 
22 
23 

24 

25 
26 

27 

2S 

29 

30 
31 

32 

33 
34 

35 

y> 

3^ 
39 

40 

41 
42 

43 
44 

45 
Af> 
47 
4'^ 
49 
50 



24 22 

57 32 

31 38 

310 16 

310 16 

24 10 

30 30 
iS 40 

15 8 

7 20 

22 36 



r. " 



15 
15 
22 

15 

33 



12 

44 
20 

48 

16 



7 38 
17 50 
17 50 



i 



- 307 28 



) 



19 46 
206 2 

18 58 
285 42 

217 20 

215 44 

.132 10 

326 32 

16S 12 

32 o 
320 38 

61 2 
352 12 

64 56 

329 48 

48 2 

316 36 

24 18 

71 24 

74 16 

65 28 
41 46 
47 10 

o 10 
306 6 



14.4 

17.0 

7.4 
6.5 

10 I I. 2 

14.4 

13.9 

8.2 

6.6 
9.2 

9.7 



II. 



III. 



t> 



7 
10 

10 

10 



15.3 
4.2 

13.9 

17.3 

9.8 

14.2 

13.4 
13.4 



13.4 

16.4 
7.0 
6.6 

10.7 

13.5 
13.2 

7.2 

5.6 
8.1 

8.7 

13.2 

3.5 

12.5 

15.2 

8.3 

12.4 
II. 7 
II. 7 



n 



9.8 10. 1 



I No. I Baroin« 



12. 1 

5.8 
7.5 
4.9 

5.6 

3-1 
9.9 
6.9 

5.8 

11. 

5.5 

7.7 

10. 1 

6.8 

7.0 

7.2 

8.5 
6.4 

6.4 

6.7 
6.8 

9.0 

H.o 

IT. 9 
7.2 



External 
Therm. 



10.9 

8.5 

6.5 
5.0 



7.2 
5.3 

II. o 

6.4 
7.6 



II. I 

4.7 

8.1 

9.0 
6.7 



5.8 

7.5 
8.0 

5.3 
6.5 



8.1 
II. 2 

I.O 

3.2 

6.0 

7.9 

7.9 
2.0 

0.7 

3.7 
3.7 

II. 8 

27.0 

7.0 

9.5 
2.2 

7.3 

5.7 
5.7 

6.0 



6.0 

4.3 
2.2 

1.7 

3.1 
1.2 

5.1 
3.1 
3.1 

4.9 
2.1 

2.5 
5.0 

1.3 

2.5 

2.5 

4.7 
0.2 

1.0 



IV. 



n 



8.1 


2.0 


6.5 


1.5 


8.2 


3.6 


II. 3 


5.8 


9.7 


6.1 


6.9 


3.9 



8.4 

ir.3 
1.9 

4.7 
6.4 

7.5 
7.5 
2.7 

1.5 
3.0 
3.6 

7.6 

27.3 
7.6 

9.5 
2.1 

7.3 
6.7 
6.7 

6.4 



5.7 
1.0 
1.6 
1.6 

0.0 
28.5 

3.1 
2.3 

I.I 

4.6 
0.9 

1.8 

3.9 
1.6 

1.9 
1.2 

4.1 

^9-9 
0.2 

1.7 
1.7 
3.3 
5-5 
5.7 
3.5 



Rev. I. 



I 



Attached 
Therm. 



m. 



21 I 

27 I 
21 

28 ■ 

28 , 

24 j 

24 I 
I 
24 
21 I 

27 

24 
23 ' 

27 I 

27 

24 

26 
22 

19 



24 
20 

27 
27 

27 

24 
24 

24 
22 

29 
22 

21 

23 
23 

28 
28 
25 
29 
29 

26 

27 

28 

28 

23 
25 



880 
829 

• • 

430 
184 

259 



2. 



3. 



572 



285 
315 



236 
179 



200 
134 



912 

822 

893 
404 

254 
248 



040 
936 



520 



160 



359 



547 

725 

175 
149 



128 
105 



336 279 



014 



778 



288 I 247 
840 



301 

735 



945 901 



455 



219 



4. 



320 



409 
368 



925 



3" 



775 



577 



048 

• ■ 

390 

698 
998 

125 
698 



902 



774 

615 

878 

372 
264 

142 
460 



890 

867 



o o 

c o 



Apparent 
Zenith Dis- 
tance, South. 



768 
612 

• • 

430 



106 

428 



140 
316 
870 

868 

637 



195 
336 
550 

•878 



665 
008 
310 398 



10. o 

10. o 
10. o 
10. o 

9.8 

9.8 
9.8 
9.8 

9.8 
9.8 
9.8 

9.8 
9.8 
9.8 
9.8 
9.8 

9.8 
9.8 
9.8 



24 26 15.7 

57 34 42.6 

31 42 21.6 

310 18 40.9 

310 18 40.4 

24 13 24.5 
30 23 35.0 
18 43 43.5 

15 II 50.4 

7 24 19.6 

22 38 54.8 

15 16 5.8 

15 48 4.9 
22 22 50.7 

15 50 34.9 
33 19 33.5 

741 1.8 
17 54 12.8 
17 54 53.8 



310 305 : 9.7 307 30 54.6 



410 


• • 


655 


• • 


035 


048 


068 


934 


588 


505 


696 


720 


056 


006 


o3o 


068 


• • 


901 


154 


137 



900 j 

■ • 

870 



680 



885 



094 I 100 
760 ' . . 



254 

■605 

930 
810 

788 



920 

754 

778 



9-7 
9.7 
9-7 
9.7 

9.8 
9.8 
9.8 
9.8 
9.8 

9.9 

9.9 
9.9 

10. o 

10. o 

10. o 
10. o 
10. o 
10. o 
10. o 

10. 

10. 1 
10. 1 
10. 1 
10. 1 
10. 1 



19 49 37.4 
206 6 38.0 

19 I 1.3 

285 45 1.6 

217 22 54.6 
215 47 40.0 
132 13 44.7 
326 35 47.4 
168 16 19. I 

32 2 25.7 

320 42 14.8 

61 6 34.8 

352 15 51.2 

64 59 50.0 

329 50 46.2 
48 7 10.7 

316 39 21.3 
24 20 31.5 
71 28 55.3 

74 21 48.0 

65 33 27.4 
41 48 31.3 
47 12 31.0 

o 13 48.1 
306 9 19.2 



o 
B 



/^or sum mat}' of the elements of reduction see page 3. 



474 
472 

452 
441 

430 



Refraction, 



401 
400 



350 



+ 25.9 

-H I 29.1 

-H 35.0 

— I 6.4 

— I 6.0 



274 
278 

• • 

267 



263 









25-3 

32.9 
19.0 

15.1 

7.2 

23.0 

14.9 

15.4 
22.5 

15.5 

35.8 

7.4 
17.6 
17.6 



325 ;— I II. 7 



335 

• • 

345 

• • 

348 
377 



361 

• • 

363 



-h 20.0 

-h 27.2 

-h 19. 1 

- 3 13.6 

+ 42.4 

-h 40.0 

- I 1.3 

- 36.8 

- II. 6 

-H 34-8 

- 45.5 
+ I 40.3 

- 7.5 
H- I 58.7 



368 1- 
. . + 
. . '4- 



32.3 

1 2.0 

52.5 
25.2 

2 44.5 



370 

• m 

375 

■ « 

3 So 



-f- 



3 

2 



■ « I 



16. 1 
2.1 

49.8 
0.2 
0.2 

16.2 



No. 



Apparent N. 
P. Distance. 




// 



75 33 2.8 

108 42 32.9 

82 49 17.8 

I 23 55.7 

I 23 55.6 

75 20 II. o 
81 30 29.1 
69 50 23.7 

66 18 26.7 
58 30 48.0 

73 45 39-0 

66 22 41.9 
66 54 41.5 
73 29 34.4 
66 57 11.6 
84 26 30.5 

58 4» 30.4 
69 o 51.6 
69 I 32.6 

358 36 4-1 



70 56 18.6 

24 59 16.0 

70 7 41.6 

336 48 9.2 

13 42 44.2 
15 18 1.2 

98 53 37.8 
17 41 31.8 
62 50 13.7 

83 9 21.7 

II 47 50.5 

112 14 36.3 

43 22 4.9 
116 8 9.9 

20 56 35.1 

99 14 33.9 
7 44 50.0 

75 27 17.9 
122 38 1.0 

125 31 25.3 
116 41 50.7 

92 55 42.3 
98 19 52.4 

51 20 9.5 

357 14 24.2 



/I 



-h 0.9 

- 0.2 

4- I.I 
0.0 

- 0.2 

- 0.8 

- 0.8 

- 0.3 

- 1.6 

- 1.6 
4- 0.4 

- 2.3 
-2.4 

- 1-3 

- 2.8 

- 3.0 

- 3.0 

- 6.5 

- 6.5 

0.0 



— 0.1 

- 4.4 

-H 1.7 

-h 1.6 



3.6 

3.3 
0.2 

0.4 

0.9 



4- 



-h 1.2 

4- I.I 

4- 0.1 

— 0.6 
-H 1.9 

— 0.2 

— 3.5 
0.0 

4- 0.6 

— 4-5 

— 4.3 

— 6.0 

— 0.2 

— 1.0 
-h 0.7 

— 0.4 



MOON'S— 



Parallax. 



n 



Semi-diam. 



ti 



48 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



17 



18 



19 



1868. 
June 16 






I 
2 
3 

4 

5 

6 

/ 

8 

9 
10 

II 

12 

13 
M 

16 

17 

18 

19 
20 

21 
22 

23 
24 
25 

26 

27 

28 

29 
30 

31 
32 
33 
34 
35 

36 
37 
38 
39 
40 

41 
42 
43 

44 

45 
46 

47 

48 

49 



OBJE( T. 



;i 



s 

a 



6 

7 
a 



K 

a 



Bootis . 
LTrsae Minoris, 
Polaris . 

Polaris, S. P. 
Virginis 
Serpcntis, (R.) 
Serpentis . 
Saturn I, N. 

Saturn II, S. 

Ophiuchi,(R.) 

Draconis . 

Ceti 

Ceti 

Tauri 

Sun I, N. . 
Sun II, S. . 
Draconis, . 
Canum Vcnat. 

Polaris, S. P. . 



(R.) 



a 
a 
d 
5 



Draconis, (R.) 
Bootis .... 
Bootis .... 
Ursac Minoris, ^R.) 
Librae .... 



,i Ursac Minoris, (R.) 

fi Librx, (R.) 

fi Bootis .... 

a Cor. Borealis, (R.) 

C Ursaj Minoris . 



Saturn I, S. 
Saturn II, N.. 
Ophiuchi . 
Herculis 
Scorpii . 



i5 

r 
a 

y 
S 

a 
b 
a 



a 
a 



a 
a 



Ophiuchi, (R.) 
Camel opard., S. P. 
Ophiuchi 
Ophiuchi 
Polyhymnia 

Ursac Minoris . 

Tauri 

Aurigae 

Sun I, N. . 
Sun II, S. . 
Canis Majoris 
Canis Minoris 
Mercurj' I, (center) 
VenusI, N.C. . 



( 



t 

O 



E. 
E. 



T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 

N. 
N. 
N. 

N. 
N. 
N. 
N. 

N. 
N. 

N. 
X. 
N. 
N. 
N. 

N. 
N. 
N. 

N. 

N. 

N. 
N. 
N. 

: N. 

! N. 

N. 
N. 

N. 
N. 
N. 

N. 

I E- I 
> E. I 

E. 
E. 
E. 
E. 
E. 
E. 



u 



SECONDS OF TRANSITS OVER WIRES. 



I. I II. 



II. 



IV. 



V. 



3 
3 

3 

3 

2.3 

3 
2 

3 
4 
5 

5 

3 
3 

3 
3 

4 

3 
4 
4 
4 
4 

3 
3 
5 
3 
3 

4 
3 
3 



8. on. 8113. 5 
31. 741. 147. 1 



VI. VII. VIII IX. Mean wire 



• ■ ' • • 



5.021 .0|i6.5 
55.257.859-4 5.5 



20.322.6,24.9 



32.0 



33.7 



36.5 



io.6|i8.il25.9'48.<) 54.5, 4.6^ 
41.0 5-o'30.o,54.« . . 



m. s. 
39 22. 6() 



CORRECTIONS. 



Inst. 



I Clock 
iappar'nt. 



s. 



Clock 
adopted, 



+ 0.13;- 7.91 - 



51 iS.oi)'— 0.9S. 
II 6.00— 11.42! 



10 43.60 



+ 11.9*) 



28 7.51'+ o.2h— 8.24 



7.5. 9-5 15-7 17. 319. 7 — , .,., . - , 
43.946.447.954.156.258.3 4.3 6.0 8.5 37 56.iS,-l- 0.25' 
22.3 24.3 26.5 32.4 34. 3I36. 5 

49.351. 053. 7 



12. 014. 6,16. 1 
27.8 30.6'32.2 



• 37-6 



I 



44 24.31.-I- 0.26'— 8.33 
55 40.7^ -»- ^'3^ ' ' 



39.841.944.1146.31 . 



I 



55 41 •95!+- 0.38' 



15. 1,23. 8. . . 

23.626.027.733.735.837.844.045.548.1 

18. 6|2 1. 2 22. 628. 7130. 7 32.8 39.1 40.643.1 

33. 4 36. 2 37. 7 44. 3'46. 648. 7 55 -4157. 1 59-8 



32.235.036.643.4 
.49.752.854.4 i.o 



44.247.5 

3.519.317.5 
29.0 



30.136.439.4 
35.037.839.5 



49.657.4 



5.7 



45.4|47.f>54.4 56.i 59-0 
3.3 5.612.1:13.816.7; 

5.1 II. 023. 227. 735. 2 



0.1 



42.3 19.3 



2.6 10.6I12.5 15.8 
7.71 5.021.3 
54.0 



22 23.80,— 0.26, . . 

36 35.80-1- 0.31 — 8.34 

55 30.82; f 0.33 - 8.32 

39 46. 58+ 0.22— 8.40 

I I 

44 45.52 -h 0.22, . . 

51 3.27 4- 0.22 

27 58.70 — 0.46 

50 1.03 -I- o. II — 8.38 

r 10 42.16 -I-I2.O4I 



54.559.1, 4.1,18.622.228.4 o 59.26— 0.65 



45.948.250.256.8 58.3: I 



o 



9 48.08 + 0.24 — 8.43 



53.745.1 58.1 2.5, 6. 711. 2. 28 2.06—1.42 
32.2^34.836.342.644.846.953.254.957.5 4344.80-h 0.42 



32.7'42.2;48.() 
52.2,56.3; 0.5 
24.8 28. 1,30.0 

3' 7.1 
23.2 



2.4 
2.9 



5 
15 



8 



12. 615. 3 



23.826.2 

39- 142 



17.0 
22.4 
27.9 



II 

2 

37 
13 
53.0 



4 i8.7j26.5;5o.o55.7 5.2 
5' 4.5 6.6| 8.612.7117.0 
8|4o.5;42.9 50.6 52.7 55.8 



9,i6.3'i8.5!25.3l27.2 
3. 3,13. 043-350. 5 



34 
31 



235 
2 . 



30.0 

2.8 

38.5 



24.6126.8 29.0 

34.0 36.o'38.o"44.i,45.7"48.3 
945.2'54.i 57.1] o.ol 9.0 II. o 14. K 

25. 1 27.3129. 631. 934. 2 



51.6,54-2 

33-3|27.i 
15.8 18.6 

46.3148.9 

29.732.6 



55.8 
23.2 
20.2 

50.5 



2.0| 4.0 



6.0 



51 1 8 . 93 — 1 . 26 

10 4.54 -♦- 0.27 
19 40.36-1- 0.12 
29 16.22J 0.00 
49 3.08 — 1.24 



55 25.53 + 0.44 
55 26.8oj-f 0.44 
7 36.00-1- 0.36 
15 57-02-1- 0.04 
21 29.62 -I- 0.49 



- 8.44 



- 8.48 



12.3 13.9 16.41 



8.1J 3.1 58.2,42.9'39.2'32.8 



27.029.231.4 

56.8 58. 9| 0.9 



34. 438. 641. 143. 1 



38.239.8142.61 



7 
45 



8.8 II. 4 



o 16.3 50.7 26.059.034.0 



43-0 7 

lb. I 18.820 5 27. o 29. 031.0 37. 238. 9 41. 6 

39.744.245.747.048.3 



41-8,44-7 



46.453.055.357 
8.6 10.8 13.0 15 
14.4117. 1 18.7,25. 1^27. 229 
19.021.5I23.029.2 31.3*33 
45-6148.5.50.056. 959. II I 
23. 1,25.8,28.034.3 36.4 38 



5.7 



4.1 
3,17.5 
335.8137.5 
339.541 

5' 7.8! 9 
5 453146 



30 4.02 -I- 0.2J> 

41 58.101-I- i.ool 

18 29.20-h 0.47 

28 58.8714- 0.281- 

37 43.35+ 0.49, 
I I 

15 25.36- 4.461 

28 28.90 4- 0.28 

7 4.62 -h 0.08 



8.42 
8.46 

• • 

8.48 
8.54 

• • 

- 8.53 



• • 



8.7 

■ • 

40.1 

ii43.6| 
12.2 

49-5 



52 
55 
39 
32 
40 

17 



55.26-4- 
13. 04! 4- 
27.24,4- 

31.28; 4- 
59.03 + 
36.4014- 



0.24 
0.24I 

0.45^ 
0.34, 
0.25 
0.261 



8.55 
8.48 



s. 

7.91 
7.91 
8.19 



— 8.27 

— 8.27 

— 8.29 

— 8.29 

— 8.29 

— 8.29 



- 8.29 

- 8.33 

- 8.33 

- 8. 34 

- 8.36 

- 8.36 

- 8.43 

- 8.44 

- 8 44 



8.45 
8.45 






Apparent R. ^z 
Ascension. 



i<^ I 



h. m. s. 
14 39 14.91 
14 51 9.17 
I 10 46.39 



I 

13 
15 
15 
15 



10 

27 

37 
44 

55 



47 

59 

48. 
16 

32 



32 

52 

14 

2^ 

8; 



s. 

O.OI 
O.Il 
2 22 

o.i: 

0.0' 



15 55 34.04 



16 22 15.25 — o.3(' 

2 36 27.7S.4- O.OI 
2 55 22.82 ^ 0.01 

3 39 38.46 -^- o.o; 

I 
I 

5 48 37.3^ . 

s 50 55.13 • 

12 27 49.90-1- 0.04 
12 50 51.70— 0.05 

I 10 45.76 -t- 0.14 



4 o 50. 16 -r 0.01 
4 9 39 87- O.OI 



8.46 
8.46 

8.46 
8.46 
8.46 

8.47 
8.47 

8.47 

8.47 

8.47 

8.47 
8.47 

8.48 
8.48 
8.48 
8.49 
8.49 

8.49 
8.50 
8.51 

8.51 
8.51 

8.53 
8.53 

8.54 
8. 55 



4 27 52.1^ -{- 0.24 
4 43 36.76- 0-^ 



4 51 9.21 -f 0.04 

5 10 56.35 — o.iif. 
5 19 32.02 T o.vi 
5 29 7-75- '>-t'2 
5 49 53371- oi^ 



55 17.501 . 
55 1S.77 . 
7 27. S9'— 0.03 
15 48. 59 4- 0.20 

21 21.64 -r O.OI 



5 

5 
6 

6 

6 



6 30 55-82- 0.02 
4 40 55.62' 4- o.i» 

7 18 21.19, 0.00' 
7 28 50.66 4- o.o(. 
7 37 35.35, • 



18 15 12.41 — o.^^ 

4 28 20.6S-i- 0.03 

5 6 56.19+ 



f^ 



5 52 46.99 . 

5 55 4-77; • • 

6 39 19. i6|— 0.05 

7 32 23.09I— 0.07 

7 40 50.74,-t^ ^-31 

8 17 28.1i> 1.5: 

I 



II. Ci and C3 in R. A. 

24. D3 and E in R. A. ; bisections at V, V^, and VI. 
26.30. Bisections at sets B and D. 
35. Wire B used. 
40. Wire A used. 
43. Seems one rev. wrong. R. A. observed over set E. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



49 



I ^ I Circle 
g Division. 

. 3 



I 
2 



8 



9 

10 

I 
I II 

12 

13 
' U 

I 15 
i6 

i3 
19 

20 

21 I 

23 i 

25 ! 

26 

on 
•/ 

28 
29 
30 

31 
32 

33 
34 

I 36 

37 
3S 

39 
40 

41 

42 
43 



44 

45 
4^> 
47 
4^^ 



II 12 

215 44 



38 44 

147 54 

33 58 

57 4 



57 
137 
337 
36 
35 
15 



4 

42 

2 

8 
16 

8 



15 8 
. 15 40 

328 20 

359 48 
[307 



28 



206 

i3 



4 

58 



193 30 

217 20 

54 20 



215 44 
132 10 
I o 
168 12 
320 38 

57 4 

57 4 
42 10 

352 12 

64 58 



130 46 

2S5 o 
62 52 
26 10 
65 28 

312 14 
22 36 

352 58 



49 



15 
15 
55 
33 
17 
18 



8 
40 
22 
16 

4 
42 



MICROSCOPE MICROMS. 


TELESCOPE MICROMETER. 


** 



















•52 






















I. 


II. 


III. 


IV. 


Rev. 


I. 


2. 


3. 


4. 


5. 


*s s 


r. " 


II 


II 


»f 














II 


15.5 


15.8 


10.3 


8.5 


25 


• • 


245 


• • 


035 


• • 


10. 1 


7.0 


10.6 


5.3 


3.2 


24 


428 


465 


• ■ 


325 


148 


10. 1 


15.3 


14.5 


8.5 


8.4 


22 


• • 


180 


« • 


060 


• • 


9-4 


17-5 


19.0 


12.3 


II. 7 


24 


• • 


304 


• • 


141 


• • 


9.4 


2.2 


2.7 


25.5 


27.3 


30 


• • 


• « 


221 


* • 


• • 


9-4 


12.5 


12.7 


5.8 


7.6 


26 


459 


• • 


• • 


« ■ 


700 


9.4 


12.5 


12.7 


5.8 


7.6 


25 


• • 


563 


• • 


576 


• • 


9.4 


10.2 


12.2 


5-8 


5.4 


22 


• • 


653 


• • 


625 


■ • 


9-4 


13.7 


13.2 


9.1 


8.8 


26 


• * 


576 


• • 


670 


■ • 


9-4 


10.5 


I0.7 


4.4 


3-5 


21 


910 


857 


■ • 


791 


732 


9.0 


9.7 


9.1 


3.0 


2.4 


27 


915 


820 


• • 


752 


708 


8.9 


9-5 


8.8 


3.0 


2.8 


23 


• • 


• • 


• • 


682 


680 


8.8 


17.2 


17.3 


11.3 


10. 


23 


911 


846 


• • 


• • 


• • 


8.8 


12.2 


II. 7 


4.5 


4.8 


26 


• • 


• • 


• • 


204 


155 


8.8 


II. 3 


10.9 


6.4 


5.1 


27 


• ■ 


■ • 


• • 


027 


024 


9.7 


4.5 


4-7 


28.8 


26.8 


25 


• • 


■ • 


130 


• • 


• • 


9.7 


5.7 


6.8 


1.2 


1.3 


27 


• • 


696 


730 


710 


■ • 


9-7 


7.0 


9-7 


4.0 


0.3 


28 


• • 


• • 


632 


480 


430 


9.8 


9.3 


8-9 


3.2 


1.6 


27 


• • 


104 




050 


■ • 


9.8 


10. 


12. 1 


5.5 


2.1 


22 


735 


778 




660 


630 


9.8 


8.0 


10. 1 


4.3 


0.9 


27 


• • 


• ■ 


430 


359 


270 


9.8 


10.7 


10. 1 


3-3 


2.7 


31 


• • 


410 


* 


282 


■ ■ 


9.8 


5.1 


7.2 


1.6 


28.3 


24 


652 


630 




585 


611 


9.8 


10.3 


12.0 


5.0 


1.9 


24 


209 


199 




ICX) 


063 


9.9 


II. 2 


10.7 


5.0 


4.0 


27 


280 


250 




125 


106 


9.9 


8.0 


10. 1 


4.0 


0.3 


22 


035 


960 




865 


810 


9.9 


3.7 


3.3 


29.3 


27.9 


22 


710 


678 




660 


680 


9.9 


13.4 


13.3 


6.2 


5.6 


27 


910 


• • 




• ■ 


680 


9.9 


13.4 


13.3 


6.2 


5.6 


29 


• • 


058 




920 


• • 


9-9 


13.4 


13. 1 


5.4 


4.6 


23 


540 


488 




390 


360 


10. 


9.4 


7.9 


2.7 


I.I 


23 


995 


925 




829 


835 


10. 


5.8 


6.6 


29.7 


28.3 


22 


• ■ 


• • 




001 


933 


10. 


8.9 


10.3 


3.5 


0.4 


24 


680 


592 




486 


519 


10. 


9.0 


10. 


5.5 


4.5 


24 


459 


433 




392 


305 


10. 


8.1 


9.0 


2.3 


0.8 


28 


012 


996 




877 


820 


10. 1 


16.1 


14.9 


7.8 


8.0 


24 


625 


616 




482 


488 


10. 1 


6.0 


5.7 


28.8 


28.6 


28 


■ ■ 


510 




438 


• • 


10. 1 


9.5 


9.3 


4.5 


3.1 


22 


270 


355 


340 


241 


324 


10.2 


19.6 


19.4 


13.5 


12.5 


26 


• • 


748 


• ■ 


690 


• • 


8.6 


16. 1 


13.7 


9-3 


8.5 


20 


• 


• • 


• • 


• • 


405 


8.6 


20.3 


18.4 


II. 9 


12.4 


27 


095 


022 


• • 


• • 


« • 


8.6 


14.6 


12.5 


6.9 


8.3 


29 


• • 


• ■ 


• • 


102 


125 


8.6 


14.6 


14.9 


8.0 


7.4 


27 


675 


700 


■ • 


490 


440 


8.6 


17.9 


17.5 


II. 5 


9.6 


24 


150 


315 


• • 


130 


305 


8.6 


17.7 


16.4 


9.8 


9.0 


22 


560 


480 


• • 


455 


380 


8.6 


17.4 


14.4 


10. 


10.2 


25 


■ • 


• • 


• • 


320 


335 


8.6 









1 

a 


Apparent 





Zeni 


th Dis- 




tance 


, South. 


6 








t»^ 








C/3 





/ 


II 




II 


15 


23.9 


• • 


215 


47 


39.9 


• • 


38 48 


10. 


301 


147 


57 


34.4 


« • 


34 





18.4 


340 


57 


7 


3.8 


347 


57 


7 


19.2 


• • 


137 


46 


5.4 


• » 


337 


5 


2.3 


• • 


36 


12 


18.6 


282 


35 


18 


48.4 


290 


15 


II 


50.5 


284 


15 


II 


41,4 


190 


15 


43 


lO.O 


• • 


328 


22 


58.4 


280 


359 


51 


34.8 


• • 


307 


30 52.7 


292 


206 


6 


37.6 


302 


19 


I 


0.7 




193 34 


5.1 




217 


22 


54.8 


309 


54 


21 


54.2 




215 47 40.6 




132 


13 44.1 


319 


I 


2 


57.4 




168 


16 


19.4 


322 


320 42 


12.9 




57 


6 


45.6 




57 


6 


27.4 


324 


42 


13 


52.9 




352 


15 


50.5 




64 


59 


50.8 


330 


130 49 39.2 




285 


3 


38.6 




62 


54 48.4 


342 


26 


13 


33.6 




65 


33 


16.9 




312 


18 


13.1 


350 


22 


38 


54.5 


280 


353 


2 


34.7 


• • 


15 


10 


50.8 


• • 


15 


42 


22.6 


245 


55 


24 


46.1 


• ■ 


33 


19 34.7 


• • 


17 


8 


2.6 


• « 


18 


45 


17.8 


• • 



S Refraction, 



+ 









+ 

4- 
+ 



// 



II. I 
40.1 



-h 44.1 

- 34.6 

+ 37.3 

H- I 25 5 

+ I 25.5 

- 50.3 

- 23.5 
-h 40.0 

+ 38.7 

-h 14.8 

+ 14.5 

+ 15. 1 

- 33.6 

- O.I 

- I II. 2 



+ 

4- 
+ I 

— I 



+ I 



I 

3 
I 



27.0 
19. 1 

13.3 
41.9 

16.6 

39-7 
0.6 

i.o 

II. 4 

45.1 

24.9 
24.9 

50.1 

7.5 
57.8 

3.8 
22.0 

47.7 

27.3 
1.2 



— I 0.9 

-h 22.8 

- 6.6 



14.7 
15.2 
18.2 

35.4 
16.6 

18.2 



Apparent N. 
P. Distance. 



// 



62 21 56.2 
15 18 1.2 



89 55 15.3 

83 9 21.4 

85 7 16.9 
108 14 50.5 

108 15 5.9 
93 21 6.1 
28 II 0.0 
87 19 19.8 

86 25 48.3 
66 18 26.5 

66 18 17. I 
66 49 46.3 
19 28 46.0 
40 57 55-9 
358 36 2.7 

24 59 16.6 
70 7 41.0 
37 32 2.8 
13 42 44.5 

105 29 32.0 

15 18 0.9 

98 53 37.7 
52 9 19.6 

62 50 13.2 

II 47 49.0 

108 14 31.7 
108 14 13.5 

93 21 4.2 

43 22 4.2 

116 8 9.8 

100 17 45.8 
336 6 37.8 
114 2 57.3 
77 20 22.1 
116 41 39.3 

3 23 33.4 

73 45 38.5 
24 8 49.3 

66 17 26.7 
66 48 59.0 

106 32 25.5 

84 26 31.3 

68 14 40.4 

69 51 57.2 



§.2 

^- U 

4) Q 

:- o 
SO 



// 



1.0 
3.1 



4- I.I 

+ 1.2 

- 1.3 

— 0.8 

- 0.8 
4- 1.9 

H- 1.3 

- 3.2 

- 2.9 

- 1.7 

- 2.3 

- 2.3 

- 2.7 

- 0.9 

- 1.3 



— 3.4 

+ 1.5 

— 2.2 

— 2.8 
-f 0.7 

— 3.0 

— 0.1 

— 0.5 
-h I.I 
-4- 0.3 

— 0.8 

— 0.8 
-h O.I 

— 0.5 
-I- 1.7 

4- O.I 

— 0.2 

— O.I 

+ I.I 

— 6.1 

— 2.0 
+ 0.2 
-4-16.0 



4- 



2.3 
2.3 
1.2 
+ 0.8 

- 3-3 

- 7.3 



No. 



Barom. 



in. 



External 
Therm. 



Attached 
Therm. 



No. 



/^or summary of the eUments of reduction see page 3. 



MOON'S— 



Parallax. 



// 



Semi-diam. 



II 



50 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 





• 






• 




SECONDS OF TRANSITS OVER WIRES. 


CORRECTIONS. 




C C 1 


DATE. 


3 




OBJECT. 


b serve 


Weight. 




VIII 










Apparent R. 
Ascension. 


J2 V 1 


I. 


1 1 
II. 'III. IV. 


V. 


VI. VII. 


IX. 


Mean wire. 


Inst. 


Clock 


Clock 
adopted. 






z 














1 








appar nt.. 




k-4 , 


1868. 


















m. s 


s. 


s 


s. 


h. m. s. 


1 

S. 1 


June 19 


I 




Polaris .... 


T. 


• 


• m 


• • 


• • 


• • 


• « 


. . 44.047.o'3i.o 


II 9.87 —lo. 53' . . 


— 8.92 


I II 50.42,4- 3-41 




2 





Piscium 


T. 


3 


22.o24.7 26.4 32.4'34.5'36.642.8 44.3 47.o 


38 34.52 + 0.32'- 8.89 


— 8.92 


I 38 25.92 - 0.07- 




3 


a 


Arietis .... 


T. 


• 


17.2 20.021.6 28.2 3o.3'32.4 39. 1 40.743.4 


47 30.32|-H 0.26— 8.96 


- 8.93 


I 47 21.65 + 0.04 




4 


1 


Taiiri .... 


r. 


3 


33-7!36.0,38.2 44.947.2!49-4!56.o.57.7 0.6 


39 47.15 H- 0.24!- 8.94 


- 8.96 


3 39 38.43' o.O) 




5 


«* 

». 


Pcrsei .... 


T. 


• 


44.747.8^49.6|59.o 


1.5 


3.8 


8.610.5 13.6 

1 ' 


46 59." 


+ 0.19 — 9.00 

1 


- 8.96 


3 46 50.34+ 0.04 


20 


6 




Sun I, S. . 


xT. 


3 


52.2 


54.856.4 


3.3 


5.5 


1 ] 
7.6:14.316.1 18.7 


57 5-45' f 0.24 


• • 


— 9.00 


5 56 56.67, . 




7 




Sun II, N. . 


T. 


3 


9. 8 12. 7:14. 4'2i. 1. 23. 3 25. 4 32. 033. 736. 7 


59 23.23 + 0.24" . . 


— 9.00 


5 59 14.47. • • 




8 


li 


Gcminorum 


r. 


3 


8.6,11.4 13.2 20. 1 22.5'24.9 3i.7 33.5 3^.5 


37 22.49 -f 0.21,— 9.04 


- 9.03 


7 37 13.67 +- 0.01 




9 




Mercury I, (centre) 


T. 


3 


52.655.4,57.0 3.8; 5.7, 8. 014. 5. 16. 2 19.0 


44 5.77 + 0.25' . . 


- 9.03 


7 43 56. 9^)-^ o.?2 




10 




Venus I, N. . 


r. 


3.2 


59.3 


2.0 3.8 10.2 

1 1 


12.6:14.921.222.925.5 

1 1 


18 12.491-H 0.26 

1 


- 9.04 


8 18 3.71 + i.f-o 

^ 1 


21 


" 


V 


Tauri .... 


N, 


3 


■ • 


• • 


44.1 46.348.5 50. 8;53.ol . . 


• « 


39 48.54 -h 0.27 —10.31 


— 10.30 


8 39 38.51'-^ 0.03 




12 


y 


Tauri .... 


N. 


3 


• • 


. . 22. 724. 826. 9129. 031.1 . . 


• • 


12 26.90+ 0.31 —10.34 


— 10.31 


4 12 16.90 + 0.05 




13 


F 


Tauri .... 


N. 


2 


5i.5 54.2'56.o. 2.4 4.5 

1 1 1 


6. 613. 1 14.617.1 


21 4.45 -4- 0.30 — 10.26 

1 


— 10.32 


4 20 54.43 — o.<J> 

1 


22 


14 




Sun I, N. . 


N. 


3 


1 
12.8 15. 5*17.2 


24.0,26.2 


28.4 35.o'36.7 39.5 


5 26.144- 0.27: . . 


— 10.36 


6 5 16.05I 




15 




Sun II, S. . . . 


N. 


3 


.... i39-4'4i-744.i 


46.1,48.21 . . 1 . . 


7 4390+ 0.27I . . 


— 10.36 


6 7 33-8i, . . 




16 




Moon I . . . 


N. 


2 


II. 8 25.1 26. 629. 342. 5:46. 047. 048. 049. 1 


14 16.20 + 0.30 


-10.43 


8 14 6.07 +72.61 




17 




Venus I. S. 


N. 


3 


44. 246. 948. 655. 057. 1I59. 2, 5.8. 7.510.2 


18 57.17 -1- 0.29 . . 


-10.43 


8 18 47-03 -^ 1.64 




18 




Venus N. . . . 


N. 


3 


. . ' . . . . ■ . . 1 . . 

I 


• ■ 


■ • I • • 


1 . . 


• • 


. ^ 




19 


a 


Can urn Venat. 


N. 


4 


46. 349-551. 459-3 2.1 


4.7 


12.6 


14. 517. 9 


50 2.03 -h 0.18 —10.52 


-10.55 


12 49 51.66 — 0.02 




20 




Polaris, S. P. . . 


N. 


4 


.... 113.049.029.5 


2.5.15-5 13.028.0 


10 49.80 +10.791 


— 10.56 


I 10 50.03 + 0.04 




21 


a 


Virginis, (R.) . . 


N. 


3 


13.8 16. 5'i 8. 024. 2 26. 4 28. 4 34. 6 36. 2 33. 7 


18 26.31 -h 0.25 . . 


-10.56 


13 18 16.00 + O.OI 




22 


n 


Ursae Majoris . 


N. 


4 


12.8 16.6 19.028.4 31.6 34. H 44. 3 46. 7 50.7 


42 31.66 f 0.08 . . 


— 10.58 


13 42 21.16 — 0.C.4 




23 


V 


Bootis, (R.) . . 


N. 


4 


23. 025. 6 27. 2,33.735.838.044.546.148.8 

1 1 1 1 


48 35.86-1- 0.02—10.60 


-10.58 


13 48 25.30 — O.OJ 




24 


a 


Draconis . 


N. 


4 


31. 838. 041. 7 56.01 0.7 


5.520.223.729.6 


1 
I 0.80 — 0.16 


-10.59 


14 50,05 + 0.0? 




25 


a 


Bootis, (R.) . . 


N. 


4 


37.4'40.34i.948.35o.5'52.759-i| 08 3.5 


9 50.50 -H o.oi . . 


-10.59 


14 9 39.92 + O.n^ 




26 


6 


Bootis, (R.) . . 


N. 


3 


34.438.741.1:51.454.557.8 7.910.314.6 


20 54.52—0.38 . . 


-10.59 


14 20 43.55 -f 0.17 




27 


5 


Ursae Minoris, (R.) 


N. 


3 


• • « • 


. . 1 • . 






• • 






28 


(" 


Bootis .... 


N. 


3 


26.1 30.1 

1 


32.0.39.842.3 

1 


45.0 


52.8 4.7' 7.8 


19 42.29-1- 0.19— 10.52 

i 1 


— 10.62 


15 19 31. 86 — o.io 




29 


y 


Ursae Minoris 


N. 


4 


. . 


• • 


1 


1 „l 
24.437.942.851.3 


21 11.01 


1 
- 0.43 . . 


— 10.62 


15 21 59.9^> -^ 0.2'. 




30 


e 


Serpentis . 


N. 


3 


14. 316. 918. 424. 5 26, 6 28. 5^34. 8 36. 3 38. 7 


44 26.56+ 0.36—10.69 


— 10,64 


15 44 16. 2S + 0.04 




31 


w 


Ursae Minoris . 


N. 


3 


5. 017. 324. 754. 41 5.i!i5.i44.852.2. 5.0 


49 4.84,— 0.88, . . 


— 10.64 


15 48 53.32;-i- 0.04 




32 




Saturn I, S. 


N. 


3 


I5.6ii8.3|20.0 


• • 1 . . 


• • 137.038. 7,41. 4 


54 28.50+ 0.47 . . 


— 10.64 


15 54 18.33 . . 




33 




Saturn, II, N. . 


N. 


3 


• • 


• ■ 


25. 4I27. 629. 9'3i. 934.0 

1 


. . 


54 29.76 


+ 0.47 


■ • 


— 10.64 


15 54 19-591 . 




34 




Elpis .... 


\. 


I 


58.7! 1.3 


1 1 
2.8 8.8 II. 013. 4 19. 1 


20. S 23.7 


47 11.07 


-f- 0.42 


. 


— 10.66 


16 47 0.83' 




35 


K 


Ophiuchi 


N. 


3 


25.327.929.4135.737.839.846.047.650.2 


51 37-74 -H o.34'-io.69 


-10.66 


16 51 27.42 -h o.<.v. 




36 




Eunomia 


N. 


2 


12.7 I5.6'i7.722.324.6i27.r29.5' . . . . 


9 27.11,+ 0.551 . . 


— 10.67 


17 9 16.99 . • 




37 




Diana .... 


N. 


2 


46.8 50. ©'51.759.41 1.9 4.3|i2.i|i4.o 16.8 


18 1.89 + 0.561 . . 


-10.68 


17 17 51.77 • • 




38 


a 


Tauri .... 


K. 


• 


18.5121.222.929.231.333.439.8,41.444.2 

'ill 


28 31.32 


+ 0.25-10.84 


-10.88 


4 28 20.(>9|— 0.04 


23 


39 




Sun I, N. . 


E. 




23.025.727.4 


■ > 1 1 
33.936.138.245.046.749.5 


9 36.17 


1 
+ 0.22 . . 


— 10.92 


6 9 25.47. 




40 




Sun II, S. . . . 


E. 


• 


40.743.445.251.853.956.0' 3.0| 4.7' 7.3 


II 54.00 + 0.22 . . 


— 10.92 


6 II 43.30 




41 


a 


Canis Minoris 


E. 




2r.5 24.0 25.5!3i.8 33.8 35.7!4i.9'43.5;45.9 


32 33.73 -h 0.30—10.88 


-10.95 


7 32 23. oS — o.rk} 




42 




Venus I, N. . . 


E. 




• • ■ • 


0.7 


2.9; 5.1! 7.3 9.51 .... 


19 5.10 + 0.24 


• • 


-10.97 


8 18 54.37 -h 1.6: 




43 


a 


Draconis . 


E. 




30.836.940.355.359.6 


5.0 18.8:22. 528.5 


59-74 - 0.15 . . 


— II. II 


14 48.48 — 0.4? 




44 


a 


Bootis, (R.) . . 


E. 


a 


36. 739. 641. 1 


47.549.7 


51.8I58.4 


0.1 


2.7 


9 49.73 + 0.021 , . 


— II. II 


14 9 38.64 — 0.2> 




45 


I 


Cassiope«, S. P. . 


E. 




55.749.045.2 


34.329.9 


24.4 


• m 


• • 


• • 


18 24.44+ 0.83 


• • 


— II. II 


2 18 14.16 — 0.03 




46 


e 


Bootis .... 


E. 




• • 


• ■ 


• . 49.852.956.3' 6.7, 9.3 


13.1 


20 53.13 + 0.03 


• • 


— II. II 


14 20 42.05.— 1. 31 




•*2 


5 


Ursae Minoris, (R.) 


E. 




• • 


• • 


. . 53.0! 1.5 


9.8I19.1 . . 


■ • 


28 1.59— 1. 31 . . 


— II. 12 


14 27 49.16— 2.}> 




48 


e 


Bootis .... 


E. 




io.8,i3.5ii5.3'22.3 24.5l26.7|33.7 35.5'38.3 


39 24.51 + 0.20— 9.87 


-II. 12 


14 39 13.59- 1-^' 




49 


a" 


Librae .... 


E. 




22.224.926.5 . . . . 1 . . ,43.245.0147.5 


43 34.88+ 0.38 . . 


-II. 12 


14 43 24.14 




50 


a« 


Librae .... 


E. 


1 
i 


33.7 36.3'38.o .... 

1 1 


• • 


54.8 


56.5 


59.1 


43 46.40+ 0.3S 

1 


— 10.03 


— II. 12 


14 43 35.66— 1,12 

1 



16. R. A. over sets C and D and E. 
27.31. Bisections at sets B and D. 
34.36.37. Wire A used. 
43 to 50. R. A. too discordant to use. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



51 



s 



Circle 
Division. 



I 

2 

3 
4 

5 



8 
9 I 

10 

I 
II 

"I 
13 

I 

M 
15 
i6 , 

n I 

I'^ 

19' 
20 

21 

22 I 

23 I 

24 
2S 

<>•• 
-/ 

= ^^ I 
20 



12 



33 

34 

35 
3^ 
37 

35 



39 
40 

41 
42 

I 43 
j 44 

4? 

4^' 
47 

4'J 



No. 



30 20 

i3 40 

15 8 

7 20 

15 38 
15 6 
10 30 

17 24 

18 54 

15 8 
23 32 

19 56 

15 8 
15 40 

19 20 
19 20 

359 48 
307 28 
130 36 
348 52 
160 6 

333 50 
160 56 

193 38 
217 20 

I o 

326 32 

33 58 
320 38 

57 o 
57 o 

48 o 

29 14 
70 50 

73 58 
22 36 

15 8 
15 40 
33 16 
19 32 

333 50 
160 56 

2S5 42 

193 30 

217 20 

II 12 

54 20 

54 20 



MICROSCOPE MICROMS. 



1. 



r. " 

14-5 
13.6 
20.5 
12.5 

10 20.9 

17.3 

15.9 
16.6 

17.9 

10 12.7 
10.9 
10.8 

10 21.0 
10 18.0 

14.5 
14.5 

7.7 

8.8 

9.3 

8.7 
8.2 

12.0 
8.4 

10.2 
8.2 

13.2 

7.3 

7.1 

9.3 
II. o 

II. o 



II. 



n 



14.2 

13.3 
19.9 

10.7 

20.0 
16.5 

14.3 
14.5 
17. I 

12.2 

10. 

10.6 

20.0 
17.4 

14. 1 
14. 1 

8.1 
10.3 

".5 
7.8 
9.8 

II. 8 
9.6 
12.7 
II. 4 
12.0 

7.0 

6.7 

9.1 

10.8 

10.8 



12.4 


13.6 


8.5 


8.0 


9.0 


10. 1 


6.7 


7-7 


13.5 


II. 5 


15.3 


14.9 


14.8 


13.4 


14.4 


14.6 


9-7 


7.7 


9-5 


9-5 


9.7 


II. 6 


9.5 


10. 


II. 8 


II. 8 


6.2 


6.8 


13.2 


12.4 


13.2 


13.0 


132 


13.0 



III. 



7.6 

7.5 

13.2 

5.1 
13.4 

9-5 
9.5 
8.5 
9.4 

5.6 
2.9 

3.9 

13.8 
13.0 

7.5 
7.5 

1.6 

4.7 
4.0 

3.1 
3-9 

7.2 
4.2 
6.5 
6.0 
6.4 

3.0 
29.9 

4-5 
4.2 

4.2 

6.5 
1.4 
3.0 
0.7 

7-4 

9.0 
7.8 
8.2 
2.6 
5.8 
6.4 

6.5 
6.8 

3.0 

8.4 

7.5 
7.5 



IV. 



7.2 

7.1 
13.6 

5.1 

12.8 

10.2 

9.1 

8.8 

9.8 

5.7 
3.0 
4.1 

13-4 
10.7 

7.0 
7.0 

0.9 
5.0 

2.7 

1.8 

I.I 

5.5 

1.5 

3-4 
2.2 

5.9 

1.7 
29.6 

4.0 

4.0 

4.0 

5.9 
I.I 

2.4 
0.3 
5.9 

8.6 

7.5 
6.4 

2.4 
5.0 

4.4 

6.3 

6.5 
0.8 

7.7 
7-6 
7.6 



TELESCOPE MICROMETER. 



Barom. 



External 
Therm. 



in. 



Attached 
Therm. 



Rev, 



24 

23 

23 
21 

22 
20 
26 
22 

23 

23 

27 
21 

26 

28 

25 

28 

25 

27 

27 
26 

21 

25 

27 
22 

27 
27 

24 
30 
22 
21 
22 

26 

23 
21 

22 

27 

23 
25 

24 

28 

25 
26 

26 

23 
27 
25 
31 
31 



I. 



566 
9S0 
089 
701 

478 



549 
403 



800 
790 



575 



020 
426 
090 

■ ■ 

722 

480 
140 
680 



355 
520 



180 

375 
809 



732 



280 
130 



2. 



535 
018 

091 



431 



552 
522 
401 



Boo 
798 



570 



958 

455 
001 

362 

686 

418 
120 
692 



287 
610 

265 

147 

925 
322 

320 

859 
718 



680 
810 



210 



3. 



438 



365 
048 



007 



510 



4- 



363 
938 

979 



751 

56S 

368 
083 

572 
160 



919 



470 

860 
415 



245 
610 



290 
001 

548 
298 



230 

« • 

280 
485 



173 
994 

995 

2S8 

2IO 



510 

688 
282 
550 
585 



090 

• • 

270 

880 



350 
878 
996 
649 



7S2 

• • 

332 
076 

535 
140 

712 



885 



415 

844 

435 



5" 

359 

949 
520 

242 



259 

• • 

293 
350 



965 



2.;0 



508 
232 



215 



S 2 

*- u 
C o 



9 
9 
9 
9 

9 
9 
9 
9 
9 

9 
9 
9 

9 
9 

9 
9 

9 
9 
9 
9 
9 

9 
9 
9 
9 
9 

9 
9 
9 
9 
9 

9 
9 
9 
9 



9 
9 
9 
9 
9 
9 

9 
9 
9 
9 
9 
9 



7 
7 

7 

7 
8 

8 
8 
8 
8 
8 
8 

8 
8 
8 
8 
8 
8 



Apparent 
Zenith Dis- 
tance, South. 



30 23 35.6 

18 43 43-9 

15 II 51.5 

7 24 21.0 

15 42 1.4 
15 10 28.6 
10 33 2.2 

17 28 5.3 

18 57 51.6 

15 II 50.5 

23 34 57.7 
20 o 20.8 

15 10 55.0 
15 42 22.9 

19 23 20.2 
19 22 33.6 

359 51 35.0 
307 30 53.4 
130 39 i.o 

348 55 13.1 
160 10 23.5 

333 53 24.1 
160 59 0.5 

193 34 5-6 
217 22 52.6 

I 2 57.3 

326 36 45.4 

34 o 18. I 

320 42 12.7 

57 4 24.7 
57 4 7-9 

48 5 44.1 

29 18 2.8 

70 56 52.3 

74 4 49.2 

22 38 53.7 



15 
15 
33 
19 
333 
160 



II 
43 
19 



45-2 
18.7 
32.1 



34 41.5 



53 
59 



22.1 
5.0 



285 35 2.6 

346 25 57,6 

217 22 55.5 

II 15 24.2 

54 19 II. 8 

54 21 55.0 



i 

B 

o 



B 

i/i 



a 



301 
296 
263 
260 



225 

• • 

1 78 

• • 

362 

• ■ 

355 
317 

• • 

294 



352 

■ • 

374 



390 



403 



412 

• • 

421 

• • 

426 

• • 

354 



Refraction. 



-4- 
+ 

+ 

4- 



-f 
+ 

+ 



H- 









32.2 
18.6 
14.8 

7.1 

15.2 
14.6 
10. o 
16.8 
18.3 

151 

24.3 
20.2 

14.9 
15.5 

19.2 
19-3 

0.1 

I 12.2 

I 4.6 

10.9 

20.0 

27-3 
19.2 

13.5 
42.8 

1.0 



37.0 

37.9 
46.0 

26.6 

26.6 



-h I 



2.8 
-h 31.6 
-h 2 41.7 

-h 3 14.8 
+ 23.4 



~ 3 

H- 
-h 

-+- I 
-H I 



151 
15.6 

36.6 

19.9 

27.4 

19.3 

17.7 

13.5 
42.8 

II. 2 

18.2 

18.2 



Apparent N. 
P. Distance. 



81 30 29.0 

69 50 23.7 
66 18 27.5 
58 30 49-3 

66 48 37.8 
66 17 4.4 

61 39 33.4 
68 34 43-3 

70 4 31.2 



9 



e 
c o 

^ t 
.£ o 

SO 



It 



66 18 26.8 


— I.I 


74 41 43-2 


- 1.3 


71 7 2.2 


0.0 



66 17 31. I 
66 48 59.6 

70 30 0.6 
70 29 14. I 

50 57 56.1 

358 36 2.4 

100 28 24.8 

40 I 23.4 

70 56 17.7 

24 59 18.0 

70 7 39.9 
37 32 2.1 
13 42 45.8 
52 9 19-5 



0.0 

+ 0.3 

- 0.5 

- 0.2 

- 2.3 

- 2.3 

- 0.2 

- 3.4 

- 7.5 



17 

85 

II 

108 

108 



41 

7 

47 
12 

II 



29.6 
17.2 

47.9 
12.5 
55.7 



99 13 8.1 

80 24 55.6 

122 5 55.2 

125 14 25.2 

73 45 38.3 

66 18 21.5 

66 49 55-5 
84 26 29.9 
70 41 22.6 

24 59 15.9 
70 7 35.5 

336 38 6.1 

37 32 5.3 
13 42 42.9 

62 21 56.6 

105 26 51.2 

105 29 34.4 



— 2.2 

— 2.3 

— 7.9 

— 7-9 

— 0.3 

— 1.6 

+ 1.9 

— 1.0 

— 0.2 

— 1.4 
-h 0.8 

— 2.2 

— 0.9 
+ 0.2 

— 1.0 

— 0.5 
-4- 0.2 

— 0.8 

— 0.8 



+ 



-+- 



3.5 
0.1 

4.5 
4.2 

0.3 

2.3 
2.3 

0.3 
8.1 

3.3 
3.4 

I.I 
I.I 
3.6 
0.5 



-h 5.6 



For summary of the elements of reduction see page 3. 



No. 



MOON'S— 



Parallax. 



/ // 



Semi-diam. 



/ '» 



52 



OBSERVATIONS WITH THE TBAMSIT CIRCLE. 





1 
• 


• 




SECONDS OF TRANSITS OVER WIRES. 




CORRECTIONS. 




DATE. 


V 


/~\TiiTrr-»'r 



> 


• 




) 




1 Apparent R. - f 


•2 1 WOJIZ**^!. 

E 

3 


J3 


be 

• mm 


I. 


H. 


IIL 


IV. 


V. 


VL 


I 

VIL.VIIIIX. 


1 

Mean wire, I 


Clock Clock 
nst. . . 1 . . 


' Ascension. r r 

.1 ' 




^, 


1 
1 




1 




















— 




appar ni. aaoptea. 


<, '>- 


1868. 




1 






m. s. 


s. 


s. 


s. 


1 
h. m. s. s. 


June 23 


I ' C Urs;e Minoris . 


E. 




• • 


. . 144. 9 


54.1 


4.4 


15.0 


24.3 


• • 


■ • 


49 4.54- 


0.74I . . —II. 15 


' 15 48 52.65 — zt, 


] 2 j ,i* Scorpii .... 


E. 




46.1148.950.7 


57.0 


59. » 


1.3 


7.61 9.412.2 


57 59.14-I- 


0.39 — 11.29 —11.15 


15 57 4'"^ -3^ -*- r> ] , 


3 ' 6 Ophiuchi . 


E. 


. I26.729.23O.8 


36.9:38.9 


40.947.0148.7 51-2 


7 38.92 -H 


0.33 —II. 31 —11.15 


16 7 2^. 10^ 0.1- 


4 ' r Hcrculis 


E. 


. 


41. 845. 647. 8156. 6;59. 6 


2. 611. 4 14.0 18.4 


' 15 59.76 -H 


0.08 . —1 1. 16 


16 15 4.^.6? - 0.}} 


5 a Scoipii .... 


E. 




18.8 


21.723.5 

1 


30.2 


32.5 


34. 9j4l.6j43. 5,46.0 


21 32.52 H- 


0.42-11.28 —11.16 

^ 1 


16 21 21 .7"^ + 0.1; 


1 6 1 15 Draconis . 


E. 




• a 


• • 


• ■ 


• • 


• • 


m • 


• • 


• • 


• • 


« ■ • 




■ 


1 

1 




7 K Ophiuchi . 


E. 




26.6-29.5 31.0 


37.1 


39.2 


4I.3I47.5I49.452.O 


51 39.29 -H 


0.2S— 12.24 —11.17 


16 51 28.40 f I «'4 




8 </ Hcrculis . 


E. 




43.546.5I48.5 


55.7 


58.0 


0.6 8.01 9.812.8 


56 58.i6'-h 


0.17 —12.35 1 — 11.17 


16 56 4J.U) -r O.I> 




9 Eunomia 


E. 




14.8 17. I 


19.2 


23.7 


26.1 


28.931.6 


,34.7.. 


8 28.95 -1- 

1 


0.45" . —11.18 


17 8 18.22 . . 


24 


10 j Sun I, S. 


T. 


1 2 


1 ^ 
33.135.3137.6 


43.9 


46.0 


1 1 
48.755.357.058.7 


1 
, 13 46.18-I- 


! 
0.21: . . j— 11.58 


; 6 13 34.81 




II 


Sun II, N. . . . 


T. 


2 . . j . . |59-0 


2.1 


4.3 


6.5 8.8 . . 


• • 


16 4.l4-»- 


0.21. . . !— 11.58 


! 6 15 52.77 




12 


a Canis Minoris 


T. 


. i22. 1,24.8126.2 


32.3I34-4 


36.542.6,44.346.8 


32 34.45 + 


0.26— 11.56 1— 11.60 


' 7 32 23.11 — o.</ 




13 


Venus I, N. . 


T. 


• 150.653. 4 


55.2 


1-4 


3.5 


5. 5112. 3.13.9:16. 7 


• 19 3.61 -h 


0.23I . . —11.62 


8 18 52.22 -«- iJ', 




14 


y Lebnis .... 


T. 


■ 


• • 


• • 


• • 


• • 


• • 


• • 


• • 


• • 


• • 


« • • 




« • 


1 

■ ft ft • 


1 




15 


Moon I, N. . . 


T. 


3 


1 
49-952.5 


54.1 


0.4 


2.6 


4. 71". 2 


12.715.3 


2.59 + 


0.25 


. . !-ii.65 


10 17 51 . 19 -r(H').;;; 




16 


3 Librae .... 


T. 


• 155-358. 059.6 


5.6 


7.7 


9. 916. 1 


17.620.2 


' 10 7.78,-^ 


0.30— 11.70 —11.74 


15 9 56.34- t>': 




17 ! y^ Urssc Minoris, (R.) 


r. 


3 32.140.4,45.6 


5.3 12.2 


19.2 . . 


• • • « 


1 20 12.27 — 


0.87 . . j-li.74 


15 20 59. 6<. -r 0.1} 




18 ; a Coronne Borealis . 


T. 


3 


5.4, 8.310.2 


17.0 


I9.2;2i.628.6,30.i 33.1 


29 19.28 + 


0.20 — 11.75 1—11.74 


15 29 7-74^ o.oi 




19 


a Serpentis, (R.). 


T. 


3 


• • 


• • 


• • 


• • 


• • 


• • 


• • 


• • • • 


• ■ • 




ft • 


1 
• ft 1 • • 

1 






20 


f Serpentis . 


T. 


• 


1 „ 
15.5 18.0 


19.7 


25-7 


27.9 


30.0 


36.0 


37.5,40.0 


44 27.80 + 


0.26 


— 11.84 —11.75 


15 44 16.32 — o.c^ 




21 


Saturn I, N. . 


T. 


• 


48,751.252.9 


■ • 


• • 


. . 10.3 II. 914. 5 


54 1.58-+- 


0.33 


• . -11.75 


15 53 50.16 




22 Saturn II . 


T. 


• 


. . 


. . 58.6 


0.8 


3.0 


4.9 7.3 


• • • • 


54 2.924- 


0.33 


• . I-II.75 


15 53 51.50 




23 


d Ophiuchi, (R.). . 


T. 


3 27.329.8:31.5 


37.5 


39. 741. 647. 749. 2:52.0 


7 39.59 + 


0.02. . . ] — 11.76 


16 7 27. So— 0.07 




24 


7 Draconis . . . , 


T. 


3 


0.6 6.5, 9.3 

1 


22.2 


26.8 


31.043.7 


47.1.52.7 


22 26.66 — 


0.02! . . , — 11.76 

1 1 


16 22 14. S^ — 0.61 




25 ' 


1 
C Ophiuchi, (R.). . 


T. 


2 


• • 


• « 


• • 


• • 


• • 


• 


• • 


• • 


• ■ 


. 




« • 


1 

• • , mm 






26 


e Ursa: Minoris . 


T. 


• 


24.0 


42.8 


54.0 


• • 


• • 


9.054.5 


• • 


24.8 


59 54.32 


— 


0.88 


• . -11.77 


16 50 41.67 — 0.40 


25 


27 


Polaris, S. P. . 


N. 


4 


• • 


■ • 


48.0 


22.5 


59-0 


37. on. 5 


■ • 


. . 


10 59.32-1- 


4.73 


. . 1—12.16 


I 10 51 .So -^ 40 




28 


e Bootis, (R.) . . 


N. 


3 


35.839.9 


42.452.4 


55-8 


59.1 


9.3 


".715.9 


20 55.81 — 


0.27 


. . I— 12.18 


14 20 43.36 + 0.05 




2q 


5 Ursae Minoris, (R.) | 


N. 


3 


• « 


• • 


• • • • 


• • 


. .•» 


• • 


• • 


. . 


. . .! 


• ■ 


• • 1 • • 






30 


e Bootis. (R.) . . | 


N. 


3 


13.2 16. I 


17.924.827.0 


29436. 3137. 940.9 


39 27.06 — 


0.07 


. . —12.19 


14 39 14. So— 0. >} 




31 


/? Utsx Minoris . 

1 


N. 


3 I35044.2 

1 


50.013.7 


21.5:28.952.4 

1 1 


57.8 7.6 


51 21.23- 

1 


0.17 


. . I— 12.19 


14 51 S.S; -r 0.1: 




1 
32 1 48 Cephei, S. P. . . , 


N. 


3 


■ • 


•_ • 


II. 


I.7;52.4 


43.434.3 


• • 


. . 


3 52.56 -f 


0.71 


, . —12.19 


3 2 41 .oS - o.r: 


' 33 J Librae . . . . ' 


N. 


4 55.958.4 


0.0 4.3 8.4 12. 5.16. 618. 020. 7 


10 8.31 + 


0.25 —12.19 ' — 12.20 


15 9 56.3^- 0.-: 


34 /i Bootis .... 


N. 


4 


28.5,31.7 


33.641.344.046.7 54.4,56.2:59.3 


19 43.97-1- 


0.14 


— 12.18 —12.20 


15 29 31.91 — <-'.'•: 


35 


) Ursic Minoris . . 1 


N. 


3.2 


• • 


• • 


5.2 12.1,18.6 


25.438.843.652.1. 


21 11.93 — 


O.IO 


. . —12.20 


15 20 5Q.(>3 -r 0.0: 


1 36 a Coronx Borealis . ! 

1 1 


N. 


3 


6.1 


8.9 


10.7 


17.4: 


19.8 


22.028.9 


30.633.5 

1 


29 19.77 -^- 


0.17 


— 12.22 —12.20 


15 29 7.74^ 0.0: 


1 1 

, 37 « Serpentis, (R.). 


N. 


2.3 


• « 


50.5 


52.056.1' 


• • 


■ • I ■ • 


1 

• • ■ • 


38 0.224- 


0.02 


. . —12. 20 


15 37 48.04 -r o.i>j 


38 C L'rs.e Minoris . . 1 


N. 


• ! 5.7.1S.025.755.4 5.7; 


15.545.5:52.8 5.7i 


49 5.56- 


0.29 


. . —12.21 ' 


15 48 53.06 o.c: 


39 ' Siiiurn I, S. 


N. 


I 35.938.4 


39-9 • . 


■ • 


. . 57.1:58.8, i.4_ 


53 48-58 4- 


0.27 


. . —12.21 


15 33 36.64 . . 


40 ' Saturn II, N. . 


N. 




1 


45.547.7.49.9 


51. 954. 1 . . • . . 


53 49.83 -h 


0.27 


. —12.21 


15 53 37. SS . 


41 1 Tauri .... 


E. 




• ■ 


• • 


28.830.9,33.0 


35.137.3 


• • 


. . 


28 33.00-1- 


0.15 


-12.37 -12.37 


4 23 20. 78 — 0.0: 

1 


26 


42 Sun, N. ... 


E. 




« • 


• ■ 


• • 


• • 


■ • 


• • 


■ • 


• • 


. . 


ft • • 




• • 


ft ft 


1 

. . I 






43 , Sun, S 1 


E. 




• * 


• ■ 


• ■ 


• • 


• • 


• ■ 


• • 


» • 


. • 


• • • 




■ m 


■ • 1 • • 


. . . . ' - • 


44 1 Moon I, N. 


E. 




. . 41. ol 


42.545.157.8 


0.8 2.0| 3.1 4.3: 


10 32.71 4- 


0.17 


. . -12.43 


12 10 20.45 ^t"^' 37 




45 .j Corvi . . . . 1 


E. 


. 27.7 30.5;32.2 38.8 4i.o;43.2 49.8l5i.5 54.2l 


27 40.99 + 


0.21 


—12.51 :-i2.43 


12 27 28.77 - u.U 


1 46 12 ('anum Vcnat. 


E. 


. 48.351.6, 

1 1 


53.6 1.4 4.1 


6.7 14.6 16.8 19.8 


50 4.104- 


0.12 


—12.60 —12.44 


12 49 51, 7^ -^- o.r 


47 1 6 Virginis . . . , 


E. 




• ■ 


28.8 


30.332.945.348.349.450.451.3 


3 20.664- 


0.18 


-12.51 1-12.44 1 


13 3 8.40 -J- OO' 


48 , Polaris, S. P. . 


E. 




• • 


• • 


50.026.5 1.5,39.5.15.5 


• • 


. . 


II 2.3o!4- 


3.28 . . 1-12.44 ; 


I 11 53.14+ 0,02 




49 i 


Serpentis . 


E. 




• • 


• • 


• • 


• • 


• • 


• • 


• • 


• • 


• . 


• • • 




ft • 


. I 


. . 1 

1 


' 1 

1 



I to 9. R. A. too discordant to use. 

6. Seems 2 revs, wrong. 

15. Bisections at sets B and D. 

35. Wire B used. 

37. Bs, 3 and Ci in R. A. 
44.47. Sets D and £ in R. A. 

44. Bisections at Ci and C5. 



v^r- 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



53 



MICROSCOPE MICROMS. 



i; I Circle 
q Division. 



TELESCOPE MICROMETER. 



Z 



I 

2 
4 



6 
7 

9 

10 

II 

12 

K 
10 

17 
iS 

19 

20 
21 
22 
23 

24 

2^ 

2f) 



-I 

29 

3'> 
31 

32 
33 

34 

3; 

V' 

37 

3^ 

39 
4<j 

41 

42 
43 
44 
45 
4^' 

47 
4^ 
49 



I 



320 38 
58 14 
42 10 

352 12 
64 56 

329 48 
29 14 

5 4 



15 42 
15 10 
33 16 
19 44 
iS 20 

28 I 

47 42 

23 20 

II 40 

147 54 

33 58 
57 o 



337 2 

130 46 ' 
316 36 

307 28 

193 30 
217 20 

168 40 

324 8 

276 6 

47 42 

I o 

326 34 

II 40 



147 54 
320 38 

57 
57 
22 



o 

o 

36 



15 14 
15 46 

37 13 
61 28 

359 4S 

43 40 

307 2S 
32 o 



I 



I. 




r. 



// 

12. 8 
6.2 

19.3 
16.6 
13.0 

12.7 

9.2 

13.2 



8 19. 1 

9 18.5 
17.8 
131 
13.5 

II 29.5 

14.5 
6.4 

6.3 
1.5 

8.1 
8.9 



II 
10 



5.6 
3.0 



6.6 
6.6 
6.1 
7.6 

8.2 

7.9 

8.2 

II. 2 

6.7 
9.6 

5.0 
6.3 
8.2 
8.2 
13.6 

10 15.6 
10 14.7 
13-7 
7.5 



10 18.2 

10 12.6 
12.8 
14.0 



// 

II. 6 

5.8 
18.3 

15.1 
12.8 

12.4 

8.8 

10.8 



16.0 
16.4 
16.6 
II. 2 
10.5 

27.2 

14.7 

2.3 

7.0 

3.2 

8.3 
9-5 



5-4 



5.0 



7-3 

7.8 

7.9 
8.0 

6.9 

71 
8.2 
9.0 

5.3 
8.8 

5.1 
5.2 

7.7 

7.7 
12.8 

13.1 

137 
12.4 

6.8 
17-5 

10.6 
12.0 
13.8 



III. 


IV. 


// 


II 


7.8 

29.5 

II. 4 


7.2 

29- 3 

II. 8 


10. 1 
6.1 


9.2 
7.2 


8.6 


8.2 


3-4 
6.1 


3.5 

5.8 


II. 

• • 

9.3 
5-5 
5.0 


9-5 
9.6 

9.4 
6.1 

6.2 


20.0 

7.8 
1.8 
1.8 


20.8 

7.8 

29.5 
0.5 


27.4 


24.0 


2.2 


2.0 


3.7 

T n 


4.0 



28.9 



2.5 
2.9 

3.3 
3.3 

3-5 

3.6 

1.8 

4.5 
2.0 

3.6 

29.2 

2.3 
2.2 
2.2 
6.9 

8.5 
9.0 

8.3 

2.5 
12.5 

5.9 

8.8 

6.2 



27.0 



2.4 
0.5 
0-5 
0.3 

3.8 

3.8 
2.2 

4.9 
2.0 

3.6 

27.6 

1-4 
2.5 
2.5 
5.5 

8.2 
8.4 

6.7 

1.5 
12.2 

6.0 
7.6 

8.5 



Xo. Barom. 



External 
Therm. 



tn. 



Attached 
Therm. 



Rev. 


I. 


2. 


3. 


4. 


5. 


22 


• • 


040 


128 


062 


■ • 


20 


792 


875 


• ■ 


845 


812 


23 


198 


100 


• * 


068 


007 


23 


• ■ 


320 


• • 


305 


• • 


23 


620 


618 


■ • 


568 


480 


28 


695 


715 


800 


840 


900 


22 


• • 


• • 


• • 


768 


825 


24 


075 


0.00 


• • 


975 


920 


30 


540 


540 




• • 


• « 


26? 


• • 


• • 




313 


192 


24 


535 


655 




483 


448 


28 


526 


438 




310 


280 


27 


• • 


338 




240 


• • 


23 


• • 


4CX) 


079 


955 


• • 


22 


• • 


100 


■ • 


974 


• • 


22 


455 


450 


■ • 


330 


310 


24 


• • 


666 


« • 


566 


• • 


25 


122 


140 


• • 


060 


020 


30 


• • 


• • 


010 


• • 


• 


25 


658 


704 


• • 


696 


632 


27 


560 


398 


• • 


I/O 


236 


24 


• • 


800 


• • 




• • 


27 


526 


537 


542 


548 


545 


22 


■ • 


B • 


955 


834 


808 


27 


• • 


• ■ 




402 


264 


20 


775 


808 




771 


681 


22 


005 


085 




928 


962 


23 


320 


365 




245 


335 


22 


472 


430 


• • 


352 


324 


27 


• • 


• • 


252 . . 


■ • 


22 


320 


• • 


^ 


335 


370 


24 


675 


600 




510 


482 


24 


980 


005 




• • 


• • 


22 


582 


570 




505 


480 


27 


• • 


• • 


832 


• • 


• • 


28 


• • 


• • 




• ■ 


770 


27 


375 


280 




• • 


no 


27 


750 


810 




• • 


■ • 


29 


• • 


• • 




395 


460 


29 


• • 


095 




910 


• • 


22 


710 


. . 




680 


670 


24 


330 


295 




130 


045 


27 


■ • 


• ■ 




• • 


338 


27 


130 


160 


180 


140 


no 


29 


200 


140 




980 


140 




// 



Apparent 
Zenith Dis- 
tance, South. 



// 



10. 


4 


10. 


4 


10. 


4 


10. 


4 


10. 


5 


lO. 


5 


10. 


5 


10. 


5 


10 


5 


10. 


5 


10. 


5 


10 


5 


10 


.5 



320 42 12 

58 18 38 

42 13 54 

352 15 51 

64 59 49 

327 50 29 
29 18 4 

5 7 44 



o 

E 



Refraction. 



15 45 i.O| 
15 13 335: 
33 19 32.4' 
19 46 37.8 
18 22 54.7 

28 5 12.4 
47 46 12.2 

213 24 15.4 
II 43 40.3 

147 57 7.8 



34 

57 



o 16.4 
3 21.3 



337 5 0.1 
9.9 130 49 41.2 



307 30 54.5 

193 34 5.3 
217 22 54.9 

168 44 37.9 

324 12 20.0 
296 9 58.6 

47 46 13.3 

I 2 56.9 

326 35 45.6 

II 43 39.2 

147 57 38.1 

320 42 12.9 

57 2 50.2 

57 2 34.4 

22 38 55.2 

15 16 46. 2I 

15 48 18. 8| 

37 15 57-31 
61 32 8.6 

359 51 36.4 

43 42 53.0 

307 30 55.5 
32 2 25.7 



415 






-h 



/ // 

45.8 

1 30-8 
51.0 

7.6 

2 0.0 

35.4 
31.6 

5.1 



303 

266 

2S2 

2S4 
460 



458 



+ 

+ 

4- 
-h I 



15.5 
14.9 

36.0 

19.7 

18.2 

29.1 
2.6 

37.5 
II. 8 

35.6 



-h 38.3 

459 .+ I 27.4 

. . !— 24.0 

. . - I 5.7 



397 
418 



— I 

4- 



427 - 

. . •-+- 
I 

• ■ 

1 

432 ;- 



H- 

4- 

4- 
4- 
-I- 
4- 



I 
I 



350 



I 



— I 

4- 



12.8 

13.6 
43.0 
II. 2 
40.7 

54.2 
2.1 

I.O 

37-2 
n.7 

35.4 

46.3 
27.0 

26.9 

23.5 

15.2 

15.7 

42.3 

42.3 
0.1 

53-3 
12.6 

35.3 



For summary of the elements of reduction see page 3. 



No. 



Apparent N. 
P. Distance. 



// 



II 57 48.3 
109 26 30.9 

93 21 6.2 

43 22 5.1 

116 8 II. I 

18 56 15.6 
&o 24 57.4 
56 14 I I. 2 



66 51 37.7 
66 20 9.6 

84 26 29,6 

70 53 18.7 
69 29 34.1 

79 12 2.7 
98 53 36.0 
17 41 28.3 
62 50 13.3 

83 9 490 

85 7 15.9 
108 II 9.9 



28 10 57.3 



100 17 45.7 



358 36 2.9 

37 32 2.3 

13 42 43.3 
62 21 54.5 

15 18 0.5 

347 14 25.6 
98 53 36.6 
52 9 19. I 
17 41 29.6 
62 50 12. I 

83 8 18.5 

II 47 47-8 

108 10 38.4 

108 10 22.5 

73 45 39.9 

66 23 22.6 

66 54 55.7 

88 23 0.8 

112 40 12. I 

50 57 57.4 

94 50 7-5 

358 36 4.1 

83 9 22.2 



— u 

— o 



11 

4- 0.8 

4- 2.0 

-I- 2.5 

+ 1.7 

4- 2.8 

-27.4 
4- 2.0 
4- 2.1 



2.3 

2.3 

0.5 

8.3 
0.1 



1.6 

1-7 

2.3 
0.4 



4- 



- 1.3 

— 0.8 



-f 0.6 



4- 0.4 



— I.I 

- 1.5 

- 2.9 

- 1.3 

— 2.2 

4- 1.0 

— 0.9 
4- 0.5 

0.0 

4- 1.3 

— 0.8 
4- 0.8 

- 0.8 

— 0.8 
4- 2.1 

- 2.3 

- 2.3 

— O.I 

4- 1.2 

4- 1.9 
4- 0.2 

+ 3.1 



MOONS- 



IS 
44 



Parallax. 



;/ 



28 0.0 

35 15.7 



Scmi-diam. 



4- 16 21. I 
4- 15 58.9 



64 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
Jnne 26 



27 



28 



29 



a 



I 

2 

3 
4 

5 

6 

7 
8 

9 
10 

II 
12 

13 

14 

15 
16 

17 
x8 

19 
20 

21 

22 

23 

24 

25 
26 

27 

28 
29 
30 

31 
32 

33 
34 

35 
36 

37 

38 

39 
40 

41 
42 

43 

44 

45 
46 

47 

48 

49 
50 



OBJECT. 



Saturn I, S. 

Saturn II, N 
/?* Scorpii . 
d Ophiuchi 
r Herculis 

« Scorpii . 
15 Draconis 
7 Herculis 
K Ophiuchi 
^ Herculis 

Anonymous 

Diana . 
966 Groombridge, 

Polyhymnia 

Astraea . 
fi Herculis 

a Canum Venat, 
Moon I, N. 
Polaris, S. P. 

a Virginis 

C Virginis 

C Ophiuchi . 

K Ophiuchi . 
Eunomia 
Polyhymnia 
Astraea . 

fi Herculis 
22 Camelopard., 
d Ursae Minoris 
51 Cephei, S. P. 

Terpsichore 
C Aquilae 

Polaris, S. P. 
a Virginis 
C Virginis 

Moon I, N. 
a Bootis . . 

Sun I, S. . 
Sun II, N. . 
Venus I, N. 
Polaris, S. P. 
C Virginis 

7 Bootis, (R.) 

5 Ursae Minoris 

e Bootis, (R.) 

/3 Ursae Minoris 

/3 Bootis . . 

48 Cephei, S. P. 

P Librae . 

y Ursae Minoris 



S.P. 



S.P. 







u 




V 


• 


t 




% 


s 


4> 


E. 




E. 




E. 




E. 




E. 




E. 




E. 




E. 




E. 




E. 




E. 




E. 




E. 




E. 




E. 




E. 




T. 


4 


T. 


4 


T. 


• 


T. 


3 


T. 


3 


T. 


3 


T. 


• 


T. 


3 


T. 


3 


T. 


3 


T. 


• 


T. 


3 


T. 


■ 


T. 


3 


T. 


3 


T. 


■ 


T. 


3 


T. 


3 


T. 


• 


T. 


4 


T. 


3 


N. 


2 


N. 


2 


N. 


3 


N. 


4 


N. 


3 


N. 


4 


N. 


4 


N. 


2 


N. 


4 


N. 


3 


N. 


3 


N. 


3 


N. 


4 



SECONDS OF TRANSITS OVER WIRES. 



I. 



22.4 

• • 

47.4 
27.9 

43-1 

20.1 

55.7 
20.9 
27.2 

43.5 



II. 



• • • ■ 



37.8 
2.9 



3.5 



48.8 
38.1 

« • 

16.3 
0.0 

56.4 
28.0 
23.0 
29.2 
27.0 

19. 1 
4.3 



10.8 
23.3 

1*6.8 
0.3 
0.4 

40.1 

20.2 

37.7 
14.2 

• • 

0.9 



25.3 

• • 

50.1 

30.5 
46.7 

23.1 
2.9 
24.4 
29.8 
46.7 



14.3 



57.6 

39.6 

0.3 

33.3 



40.7 
52.6 



5.7 



52.1 
40.7 

m • 

18.9 
2.6 

58.8 
30.6 
26.1 
32.2 
29.6 

21.8 

57.1 



13.7 

26.0 



19.4 

3.1 
3.2 

43.1 

23.1 
40.5 

16.9 

• • 

3.5 



25.0 



I.O 



37.7 
1.9 

40.8 



III. 



27.1 

• • 

51.8 
32.0 

48.8 

24.8 

7.4 

26.2 



IV. 



34.6 

58.3 

38.0 
57.7 

31.5 

24.2 

34.2 



V. 



36 
o 

40 
o 

33 
30 
36 



VI. 



31.537.539 



48.5 



42.9 
47.4 
37.6 
7.6 
27.9 

54.0 
42.2 
55.0 
20.5 
4.2 

0.5 
32.2 

28.1 

34.3 
31.4 

23.6 

52.4 
17.0 

1.0 



55.858 



50.5 
23.3 
39-4 
12.6 

29.9 

2.0 

48.5 

26.6 
10.3 

6.7 
38.3 
35.4 
40.8 

37.5 

30.5 
35.0 

52.0 

18.0 



15.823.2 



27.6 

55.0 

21.0 

4.6 

4.7 
44.5 

24.7 
42.1 
18.5 
48.0 
5.0 



32.2 



7.4 
2.9 

31. 1 
6.1 

46.9 



33.8 

32.0 
27.1 
10.9 

11. 

51. 1 

31.4 

48.8 

25.0 

• • 
II. I 



57.1 



15.4 
II. 1 

3.3 

8.1 

7.0 



55 
53 
15 
41 
14 
32 

4 

50 
6 

28 
12 

8 
40 

37 
43 
39 

32 
29 
27 
36 

25 
36 

6 
29 
12 

13 
53 

33 
51 
27 

• 

13 



23 
13 

54 
10 

13 



839 
5 2 
042 

8 3 



36 
35 

7,39 
641 

4! o 



2;59 
055 
3 
3 



8 
43 
17 
34 



5 7 



52 

44 
30 

14 



10 

42 
40 

841 



9 35 

23 
I 

54 

28 

38 



044 
131 
714 
115 
55 



35 

53 
29 

39 
15 



14 



30 
16 



144 

2|I2 
820 



VII. 



44.1 

• • 

9-1 

48.3 



VIII 



IX. 



45.748.2 



10.8 13.4 

49.8,52.2 

612.7 15. 018. 5 



142.844.6 

8,52.757.1 



i!47.049 
6'48.o 

8 8.3 



0.4 

2.9 
44.5 
3I45.4 
I 24.2 

536.9 



15. 1 
58.9 

• • 

37.1 
20.5 



817. 1 
448.6 

1I47.3 
652.4 

848.2 



42.0 

5.8 

35-0 

OII.O 

235.7 
144.4 



020.0 

1I37.5 
821.0 



21.5 

1.8 



942.5 



0.0 

35.7 
16.0 

21.2 



440.0 



538.5 
524.7 



617.3 

14.4 
3,40.4 



47.2 

4.4 

52.5 



49.652.1 
10. 013. 1 



2.3 
4.0 

38.7 

• • 

25.8 



17.1 
0.5 

38.7 
22.1 



3.7 

7.9 
28.6 

• • 

28.1 



20.3 
3.1 

■ • 

41.3 
24.5 



18. 621. 2 



50.4 
49-3 
54.1 
50.1 

43.8 
1.9 



37.6 
46.0 



39.1 
22.5 

23.0 
3-5 

44.0 

1.8 

37.1 
29.0 

22.8 



46.6 



26.8 

10. o 
18.4 

45.5 



52.7 

51-9 

56.8 

52.6 

46.6 

54-8 



40.6 

48.5 



41.7 
25.2 

25.9 
6.2 

46.9 

4.5 
40.0 

• • 

25.4 



57.2 



30.0 

58.6 
20.0 

54-91 



Mean wire, 



m. 



s. 



53 35.47 
53 36.87 
58 0.46 
7 40.09 
16 0.77 

21 33.77 
28 30.04 
38 36.68 



CORRECTIONS. 



Inst. 



s. 

-I- 0.20 
-h 0.20 
-j- 0.20 
-H 0.18 
-h o.io 

-h 0.21 
— 0.02 
-f- O.II 



51 39.66 -h 0.16 
56 58.34+ 0.12 



5 27.06 
14 52.90 



22 15.70 -I- 0.45 



29 41.40 
34 15.49 



-I- 0.22 
-h 0.23 



-+- 0.21 
-(- 0.20 



41 32. 28 + O.I4 



50 4.57 

3 50.59 
II 7.40 

18 28.76 

28 12.31 

30 8.77 

51 40.40 

4 37-68 
28 43.18 
33 39-78 



-4- O.IO 

4- O.II 

-f- 0.61 

-\- O.II 

-I- O.II 

-+- O.II 

4- O.II 

4- 0.12 

4- 0.12 

4- 0.12 



41 32.83 4- O.II 
4 29.86 4-0.15 
15 26.54 — 0.09 
37 35.824- 0.36 
51 25.694- 0.12 
59 35.97+ O.II 



II 7.10 
18 29.20 
28 12.79 

56 13.13 
9 53.20 

34 33.58 
36 51.10 
16 27.09 
II 2.20 
28 13.12 



28 5.87 



+ 

+ 



1. 91 

O.II 
+ O.IO 

4- O.II 
4- 0.09 

4- O.IO 
4- O.IO 

-f O.II 

+ 7.20 
4- 0.16 



— 0.51 



51 22.98 — 0.44 



57 13.81 



+ 0.02 



3 54.04 + 0.93 
10 10.18 4- 0.18 
21 13.56— 0.35 



Clock 
apparent. 



s. 



12.43 
12.33 



— 12.32 



12.43 
12.49 



12.61 
13.07 



12.92 
12.97 

13.08 
13.12 



-13.13 



— 13.21 

-13.37 
-13.45 

• • 

-13.50 



-13.85 



— 14.01 



Clock 
adopted, 



s. 

2.49 
2.49 

2.49 

2.49 
2.50 

2.50 
2.50 
2.50 

2.51 
2.51 

2.51 
2.51 

2.51 
2.52 
2.52 

2.52 

3.02 

3.03 
3.03 
3.03 
3.03 

3.08 
3.09 

3.09 
3.10 

3.10 

3.10 
3. II 
3. II 
3.12 
3.12 

3.13 

3.43 
3.43 
3.44 
3.44 
3.45 

3.80 
3.80 
3.83 
3.91 
3.92 



3.94 



3.95 
3.95 

3.95 
3.95 
3.95 



Apparent R. 
Ascension. 



h. m. s. 

5 53 23. i& 
5 53 24.58 

5 57 48.17 

6 7 27.7S 
6 15 48.37 

6 21 21.46 
6 28 17.52 
6 38 24.29 
6 51 27.31 

6 56 45.95 



c 5 






S. 



— 0.01 

— 0.14 
-r 0.05 

— 0. 16 

I 

— 0.4= 

— 0.fX» 

— 0.05 

— CO";. 



5 14.77 
14 30.61; 

22 3.64 

29 29.09 

34 3.17 
41 19.90 



O.IO 



4- 0.0^ 



2 49 51.65 -♦- 0.06 

3 3 37.67+65.53 
I 10 54.9S1-1- 1.91 
3 18 15.84 — 0.10 
3 27 59.39— o.ot. 



6 
6 

7 
7 
7 



29 55.801 
51 27.32 

4 24.71 
28 30.20 

33 26.80 



0.05 

0.04 



7 41 19.84 -\- 0.03 
6 4 16.40'-!- o.tjf.^ 

8 15 13.34'+ 0,57 
6 37 23.064- i.v^ 
5 51 12.69 . . 
8 59 22.95 i 0.12 

I 10 55.65'+ I 71 

3 18 15.88;— 0,05 

3 27 59.451+ o.oi 

3 55 59.804-65.14 

4 9 39. 84 4- o.oC' 



6 34 19.88 
6 36 37.40I 
8 16 13.37 + i.fi 
I 10 55.49 + o.5t> 
13 27 59-36- 0.07 



14 27 51.424- 0.2: 



14 51 8.59 4- o.t>^ ! 

14 56 59. 8S 4- o.oi 

3 3 41.02,4- o.n 

15 9 56.41 + 0.05 
15 21 59.26 — O.II 



3. 12.24.25.26.31. Wire A used. 

II. Set E. in R. A. 
36.44.46.48. Bisections at sets B and D. 
41. R. A. over wires Co and D. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



55 



C 



I 
2 

J 

4 

5 



8 



10 

II 

12 

14 

15 
i6 



I 

IS 

19 
20 

21 



22 
23 

24 

25 
26 

2- 
2S 
29 
30 
31 
32 

33 
34 
35 
36 

37 

38 

39 
40 

41 
42 



Circle 
Division. 



// 



o 
o 



57 
57 
58 14 
42 10 
352 12 

64 56 
329 48 

359 38 
29 14 

5 4 

70 30 

73 46 

293 48 

65 24 

55 30 
If 2 



/ 359 48 

41 56 

307 28 

49 18 

38 44 



49 6 
29 14 
70 26 
65 24 
55 32 

II 2 
288 16 
312 14 

306 6 
73 20 
25 10 

307 28 
49 18 
38 44 
46 22 

18 58 

15 54 
15 22 
20 40 
307 28 
38 44 



43 


iGo 6 


44 


322 34 


45 


t68 42 


46 


324 8 


47 


357 56 



48 296 6 

49 I 47 42 

50 I 326 32 



MICROSCOPE MICROMS. 



I. 



r n 

5.5 
5.5 

8.3 

11. 2 

16.8 

11. 4 
13.2 
12.8 
12.0 
II. o 

10 7.3 

10.8 

12.0 

8.0 

9.8 

10 14.8 

3.1 
14.4 

12.8 

11. 5 

7.4 
7.4 
5.4 
5.2 

7.5 

9-5 

12.4 

6.0 

11. 3 
5.6 

12.7 

4.2 

13.7. 
13.1 
5.6 
14.6 

14.2 

13.7 
12.6 

5.2 

8.7 

7.7 

8.3 

6.5 
10. o 

10.3 

7.7 
8.5 
7.7 



II. 



// 

6.0 

6.0 

7.2 

10.5 

15.0 

II. 4 
II. 8 
II. 4 
12.2 
9.0 

7.0 
10.7 
9.6 
8.0 
7.8 
I3-0 

2.2 

13.9 
12.5 

10.3 

7.3 
6.4 

4.8 

5.6 

7.0 

9.3 

II. 8 

5-2 
10.8 

6.0 
12.0 

4.0 

13.3 
12.0 

5.4 
13.5 

135 
II. I 

10.3 

6.0 

8.2 

9.4 

7.7 

7.7 
9.6 

9.0 

7.4 

8.8 

6.8 



III. 



0.8 
0.8 
2.1 

4.3 
10.7 

6.0 
7.2 
7.0 

.5.5 
6.0 

i.o 
5.0 

7.5 

3.5 

4-3 
8.2 

29.5 

7.5 
8.1 

4.5 

1.8 

1.4 

29.0 

29.5 
1.4 

5.3 

8.5 
1.8 

7.3 
29.8 

6.8 

0.0 

7.6 

6.5 
29.2 

8.5 

8.8 

6.8 

5.0 

1.5 
2.0 

3.5 
3.6 
2.7 
6.0 
4.0 

4.0 
2.8 

3.5 



IV. 



II 

1.2 
1.2 
4.0 

7.5 
10. o 

6.5 

9.3 
6.1 

6.8 

5.0 



TELESCOPE MICROMETER. 



Rev. 



29 
30 
30 
23 

23 

23 
27 

19 
22 

24 



1.2 


15 


5-2 


15 


8.3 


20 


4.5 


16 


4.8 


17 


9.4 


25 


26.6 


25 


7.3 


28 


8.5 


27 


4.6 


22 


0.5 


22 


0.5 


23 


27.5 


28 


29.0 


28 


O.I 


28 


3.0 


25 


7.6 


31 


1.4 


22 


6.6 


25 


29.4 


29 


5.5 


27 


2.4 


27 


7.8 


26 


7.3 


22 


29.0 


25 


8.4 


26 


7.5 


27 


6.4 


25 


5.1 


27 


1.5 


27 


1.9 


22 


1-5 


21 


3.1 


26 


0.2 


28 


5.4 


21 


3.4 


28 


30 


23 


2.2 


22 


2.7 


24 



I. 



620 



580 

545 
800 

• • 

075 

• ■ 

340 



680 
100 



452 

• « 

180 



770 



061 
610 
890 
300 



755 



194 

• ■ 

428 
632 



925 
920 



392 

444 
490 



2. 



660 
420 

755 
988 

118 

628 

310 



612 



358 
792 



535 

102 
058 

771 
866 

992 

879 
090 

552 
892 
440 

383 

790 
972 
480 
822 
752 

211 

• • 

425 
861 

662 
850 

• • 

890 
308 

462 
411 
372 



3. 



608 



585 
196 



558 
831 



754 
570 



191 

» • 

820 
615 

• • 

670 

• • 

262 



4. 



830 

525 
400 

690 
860 
240 

775 
160 



610 



260 

355 

250 

388 
190 

460 

940 

174 
625 

872 

810 

748 
860 
560 
860 
225 
310 

795 

933 
386 

349 
768 



240 

233 
631 

722 

535 
860 

610 
865 
191 

380 
309 
310 



5. 



822 
788 

455 

385 

600 

■ • 

100 

• • 

200 

390 
100 

660 



370 
230 



710 



840 

555 
878 

370 



798 



278 
640 



849 

575 
868 



360 
294 

395 



NO 



II 

10.5 
10.5 
10.5 
10.5 
10.5 

10.5 
10.5 
10.5 
10.5 
10.5 

10.5 
10.5 
10.5 
I0.5 
10.5 
10.5 

9.3 
9.3 
9-3 

9.3 

9-3 
9-3 
9-3 
9-3 
9.3 

9.3 
9-3 
9-3 
9-3 
9-3 
9-3 

9.8 
9.8 
9.8 
9.8 
9.8 

10. o 
10. o 
10. o 
10.2 
10.2 

10.2 
10.2 
10.2 
10.3 
10.3 

10.3 
10.3 
10.3 





1 

6 


Appaient 


Sc 


Zenith Dis- 




tance, South. 


3 




>\ 




Vi 


. // 




57 2 25.7 




57 2 4.8 




58 18 37.7 




42 13 52.5 




352 15 50.1 




64 59 49.4 




329 50 44.6 




359 42 59-5 




29 18 4.9 




5 7 42.8 




70 53 59-6 




73 50 34.5 




293 52 36.0 




65 29 49.5 




55 35 29.3 




II 5 21.2 


460 


359 51 33-2 


329 


41 58 31.9 


• • 


307 30 53-5 


332 


38 48 8.1 


335 


49 10 18.8 


389 


29 18 2.6 


• m 


70 31 12.8 


390 


65 29 10. 


• • 


55 37 8.0 


388 


II 5 18.5 


• • 


288 17 54.8 


393 


312 18 II. 3 


■ • 


306 9 15.2 


392 


73 25 2.4 


• • 


25 10 52.6 


• • 


307 30 52.8 


292 


49 20 57.6 


298 


38 48 7.6 


308 


46 25 26.9 


324 


19 I 0.1 


328 


15 56 55.0 


• m 


15 25 24.6 


• • 


20 42 54.4 


276 


307 30 54.4 


• • 


38 48 6.9 


364 


160 10 24,7 


372 


322 37 4.4 


385 


168 44 37.8 


• ■ 


324 12 18.7 


• • 


357 58 42.3 


• • 


296 9 57.3 


395 


47 46 13.2 


• • 


326 35 44.4 


• • 



£ Refraction. 



4- 
+ 






+ 



+ 
+ 
+ 



+ 






// 



26.9 
26.9 
31.2 

51.3 
7.6 



2 0.6 

- 32.9 
0.3 
+ 31.8 

+ 5.1 



2 

3 
2 

2 

I 



42.0 
12.9 

7.5 

3.8 

22.8 

II. I 



— O.I 

+ 49.6 

— I II. 9 

-4- 44-4 



1 4.7 

314 

2 36.8 

2 2.9 
I 21.3 



2 
I 
I 

3 



I 
I 



II. o 

47.5 

1.5 
16.5 

5.6 

26.3 

II. 2 

3.8 
44.2 

57.9 
19.0 



+ 15.6 

+ 15. 1 

•f 20.6 

- I 12.3 
+ 44.7 

- 20.1 

- 42.7 
II. I 

- 40.4 

- 2.0 

- I 53.5 
-H I 1.7 

- 37.0 



Apparent N. 
P. Distance. 



// 



108 10 13.8 

108 9 52.9 

109 26 30.1 
93 21 5.0 
43 22 3.7 

116 8 IT. 2 
20 56 32.9 
50 49 20.4 
80 24 57.9 
56 14 9.1 

122 3 2.8 
125 o 8.6 
344 56 49.7 
116 38 14.5 
106 43 13.3 
62 II 53.5 

50 57 54.3 

93 5 42.7 
358 36 2.8 

89 55 13-7 

100 17 44.7 
80 24 55,2 
121 40 10.8 
116 37 34.1 
106 44 50.5 

62 II 50.7 

339 21 28.5 

3 23 31.0 

357 14 19.9 
124 34 29.2 

76 17 40.1 

358 36 2.8 
100 28 22.6 

89 55 13.0 

97 32 46.0 

70 7 40.3 

67 3 31.8 
66 32 0.9 

71 49 36.2 

358 36 3.3 
89 55 12.8 

70 56 16.6 
13 42 42.9 
62 21 54.5 
15 17 59-5 
49 5 1.5 

347 14 25.0 

98 53 36.1 
17 41 28.6 



Pa 

a o 

s u 
u o 

an ^ 

so 



II 

— 0.8 

— 0.8 
+ 1.2 
-h 1.6 

4- 1.0 

-h 2.8 

-h 0.7 

+ 2.3 

-h 3.0 

+ 0.8 



- 4.4 
+ 30 

- 6.1 

- 3.9 
+ 2.0 

- 1.8 

- I.I 
4- 0.2 

- 0.4 

-I- 0.5 

- 4.5 

- 6.1 

- 3.9 

- 0.6 

- 0.7 

- 1.7 

- 1.3 

- 3.9 
4- 0.6 

- 1.2 
0.0 

- 0.5 

-h 2.0 

- 2.3 

- 2.4 

- 9-4 

- 0.7 

- 0.6 

- 0.5 

- 2.8 

- 0.7 

- 2.5 

- 1.3 

-h 0.8 

- 1.2 

- 0.6 



No. 



Barom. 



in. 



External 
Therm. 



Attached 
Therm. 



For summary of the elements of reduction see page 3. 



No. 



18 
36 



MOON'S— 



Parallax. 



Semi-diam. 



// 



38 29.4 
41 12.9 



// 



+ 15 47.1 
+ 15 35.8 



56 



OBSEBYATIONS WITH THE TBANSIT CIRCLE. 





• 






• 




SECONDS OF TRANSITS OVER WIRES. 




1 
CORRECTIONS. 


1 -^ ■'' 
1 c? ' 


DATE. 


3 




OBJECT. 


t 














Apparent R.I ^'^ ' 






I. 


II. 


III. 


IV. V. 


VI. iVII.'viII 


IX. 


1 
Mean wire.' Inst. 


Clock 


Clock 


Ascension. , r H 




TT, 

















1 






apparnt. aaopica. 


1 Tr. ^ 


1868. 














1 
m. s. 


s. 


s. 


s. 


h. m. s. 5. 


June 29 


I 


a 


Coronae Boreal is . 


N. 


• 


7.7io.5'i2.4'i9.2 2i.5 23.6'30.7'32.4'35.6 


29 21.51 4- 


0.08-13.90 1-13.95 


15 29 7.64 — 0.05 




2 


a 


Serpentis, (R.) 


N. 


4 


49.652.153.759.9' 2.0! 4.010.211.7,14.2 

■ 


38 1.93 + 


0.05 


. '-13.96 


15 37 4S.02 -h o.or 




3 




Ursae Minoris, (R.) 


N. 


4 


' • • • • 


• • • • 


• • 


. • 


• • 


• • 


• • 


. . . 


• • • 
1 


. 1 


1 




4 


• 


Herculis, (R.) . . 


N. 


3 


,44.648.3 50. 6'59. 6 


2.5 


5.614.516.4 


20.4 


16 2.50 — 


0.18 


■ -13.97 


16 15 48. 35 -i- o.cjfj 




5 


a 


Scorpii .... 


N. 


3 


..'-.. '33.135.437.640.044.546.3 

1 1 1 1 


49.0 


21 35.42-+- 


0.23-13.99 ;— 13.97 

1 


16 21 21.65 -^ 0.C4 

1 


1 


6 


c 


Ophiuchi . 


N. 


4 


57.259.7' 1.4 


1 1 1 1 

7.6 9.7,11.6,17.919.5 


22.0 


30 9.624- 


1 

0.18 —14.00 ,—13.97 


16 29 55.83 — 0.02 




7 


d 


Herculis 


N. 


3 


45.248.250.157.7 0.2: 2.4! 9.bii.7;i4.6 


56 59-99 + 


0.06' 


■ -13.98 


i6 56 46.07 T O.IO 




8 


b 


Ophiuchi 


N. 


3 


21. 6 24. 5 26. 1132.635.137. 2 43. 9 45. 5148.3 


18 34.9b + 


0.22—13.94 —13.98 


17 18 21.22 — 0.04 




9 




Astixa .... 


X. 


I 


42.645.246.753.355.557.51 3-6' 5.5 


8.0 


31 55.32 4- 


0.20' 


' -13-99 


17 31 41.53 . . 




10 


0) 


Draconis 


N. 


4 


••1 


• • 


• • 


. . 23.928.0 

' 1 


35.0 


38 1.25- 


0.26 . • 


■ 1-13.99 

1 


17 38 47.00— 0.02 

1 




11 


^' 


Draconis . 


N. 


4 


55.8 4.01 9.0 


• • 


• • 


. . ! 2.61 7.4 


16.0 


, 44 35.77- 


0.36 


. -13.99 


17 44 21.42 -r- 0.0: 




12 


r 


Draconis . 


N. 


4 


. . 


. . 24. 230. 937. 744. 251. 1 . . 


• • 


' 44 37.62- 


0.36; . 


• ,-13.99 


17 44 23.27 




13 


7 


Draconis . 


N. 


4 


• « 


• • • • 


■ ■ ' • • 


A 


2.31 4.5 


8.8 


53 49-09- 


0.04 


. -13.99 


17 53 3506- 0.14 




14 


d 


Ursae Minoris 


N. 


4 


.... I9.7'54.3|28.7 


3.038.0 . . 


• • 


' 15 28.86- 


2.70 


. —14.00 


18 15 12.16 — 0.4: 




15 


I 


Aquilse 


N. 


3 


5.2 7,9 9. 615. 717. 819. 725. 9'27. 4 


30.0 


28 17.69 4- 


0.18— 14.04 —14.00 


18 28 3.87 4- o,o> 




16 


a 


Lyrae .... 


N. 


3 


28. 932. 1 34.142.044.6 

1 1 


47.255.157.2 


0.3 


32 44.61 4- 


0.04'— 14.04 —14.00 


18 32 30.65 -r 0.04 


30 


17 


a 


Tauri .... 


T. 


2 


! ' 1 0' 
22.525.226.733.235.337.243.845.4 


48.1 


28 35.27 + 

1 1 


1 
0.15 —14.5 

1 


1 
I :— 14.48 

1 


4 28 20.94 4- 0.03 


July I 


18 




Sun I, S. . 


T. 


2 


1 1 
37.1 40.241.848.650.7 53.059.6 


I.I 


4.0 


! 
42 50. 68 + 


0. 12 


• 


• -14.52 


6 42 36. 2S . . 




19 




Sun II, N. . . . 


T. 


• 


54.757.659. I 6.0 8.210.4,17.018.6 


21.5 


45 8.124- 


0.12 


. -14.52 


6 44 53.72, . 




20 




Venus I, N. . . 


T. 


3 


i.7i 4.4 6.012.414.5116.623.024.7 


27.4 


14 14.52 + 


0.14 


■ 1-14.54 


8 14 0.12 4- i.r? 




21 


a 


Hydne .... 


T. 


• 


8.1 10.612.1 18.320.422.5 28. 630. 2 


32.7 


21 20.39 + 


0.23—14.58 I— 14.56 


9 21 6.o(y 4- o.or 




22 




Polaris, S, P. . . 


T. 


3 


. . 1 . . 51.028.0 4.0 

1 


42.017.0' . . 


• • 


II 4.12 + 


9.31; . 


. :-i4.63 


I 10 58.80-1- I.C/J 




23 , 


a 


V irgmis 


T. 


3 


* 1 

17.820.421.928. 1 30.2 


32. 33S. 440.0 


42.6 


18 30.194- 


0.24—14.52 —14.63 


13 18 15.80 — 0.10 




24 


a 


Caronae Borealis . 


T. 


. 


8.5 11.4 13. 1 20.022.3 24.5 31.4 33.2136.0 


29 22.27 + 


O.IO; — 14.70 I — 14.66 


15 29 7.71 -h 0.04 




25 1 


a 


Serpentis, (R.) . 


T. 


3 


50.1 52.754.3' • • 


2.5 . . 10.7 12.2 14.8 


38 2.474- 


o.io' 


. -14.67 


15 37 47-92 0.01 




26 


e 


Serpentis . 


T. 


• 


18.420.922.528.5,30.632.638.840.4143.0 


44 30.634- 


0.19 — I4.6J 


2 -14.67 


15 44 16.15 — O-C- 




27 




Saturn I, N. . 


T. 


3 


22.324.826.5 

1 


• • 


• • 


. . 43. 7 45 .4148. 1 


52 35.13 + 


0.27 


. -14.67 


15 52 20.73 




28 




Saturn II . 


T. 


• 


. . . . ,32.034.236.538.540.7 


. . 


■ ■ 


52 36.384- 


0.27 


• 


■ -14.67 


15 52 21. 9S . . 




29 


P' 


Scorpii .... 


T. 


3 


49.652.454.0 


• • • • 


. . ,11.3,12.9 


15.6 


58 2.634- 


0.28 —14. 6< 


) -14.67 


15 57 48.24+ 0.0: 




30 


t^' 


Scorpii .... 


T. 


3 


. . 1 . . 158.7 


0.8 3.2 


5-2 7.5 • • 


9 • 


58 3.084- 


0.281 


. -14.67 


15 58 48.69 . . 




31 


T 


Herculis, (R.) . . 


T. 


3 


45.649-251.5 


0.3 3.4 


6.115.317.4 


21.2 


16 3.34'- 


0.16 


. -14.68 


16 15 48.50 4- 0.23 




32 


V 


Draconis . 


T. 


• 


3.5 9. 012. 325. 1 


295 


33.947050.355. 5 


22 29.57 — 


0.19 


. —14.68 


16 22 14.70 — 0.65 




33 




Moon I, N. 


T. 


4 


26.2,28.930.5 


1 
37.2,39.4 


41.648.2 49.8:52.6 


33 39-38 + 


0.27 


• 


. -14.68 


16 33 24.97 4-65. 6«.. 




34 


d 


Herculis . 


T. 


3 


46.249.251.058.3' 0.8 3.310.7,12.415.5 


57 0.824- 


0.07, 


. -14.69 


16 56 46.20 4- 0.24 


• 


35 


b 


Ophiuchi . 


T. 


3 


22. 4 25. 1 26. 8 33. 6 35. 7 38. 044. 7 46. 4 4Q. 2 


is 35.77 + 


0.29 — 14.6< 


) -14.69 


17 18 21.37 4- 0.10 




36 




Astrxa .... 


T. 


2 


0.7' 3.7 5.3,12.2,13.916.122.624.2,26.7 


30 I3-93| + 


0.27 


-14.70 


17 29 59.50 . . 




37 


xb^ 


Draconis 


T. 


3 


■ • 


4.7 9-8 


• ■ • • 

1 


. . ' 3.51 8.4 

I 


• « 


44 36.60 — 


0.4s 


. -14.70 


17 44 21.42 -r 0.12 




38 


r 


Draconis . 


T. 


• 


. . ■ . . 25.232.038.645.452.3 


• ■ 


• • 


44 38. 70- 


0.4S 


. -14.70 


17 44 23.52 




39 


r 


Draconis 


T. 


3 


30.2134.2136.846.8150.153.4 3.1, 5.5 


9.6 


53 49-97 - 


o.o6| . 


. -14.70 


17 53 35-21 -h 0.02 




40 


H- 


Sagittarii . 


T. 


3 


56.258.8 0.5 


7.1' 9.3 II. 5 18.0I19.5 


22.4 


6 9.26,4- 


0.28—14.8] 


[ -14.71 


18 5 54.83 -h o.oC 




41 


6 


Ursae Minoris . 


T. 


3 


• • 


. . 22.o;57.0j32.o 5.041.0 . . . . 


15 31.52- 


2.83' . . 


-14.71 


18 15 13. 9S 4- o.5t< 




42 


I 


Aquilie, (R.) . 


T. 


3 


6.1 


8.7 10.2 16.4 18.5,20.5 26.7 28.2 30.8 

1 1 1 1 


28 18.46 


+ 


0.17 


-14.71 


18 28 3.92 4- o.ii 




43 


50 


Draconis . 


T. 


■ 


9.7|i9-5'25.8l50.2l57.6 


5.730.1I36.1 


46.4 


50 57.90- 


0.64! . 


-14.72 


18 50 42.54 4- 0.44 




44 




Aquilae 


T. 


• 


25.027.629.235.3 


37.5 


39.745.9,47.550.0 


59 37.52 + 


o.t6' — I4.7( 


) -14.72 


18 59 22.96,4- O.II 




45 


cJ 


Aquilse 


T. 


3 


55.1 


57.759.2! . . 


7.6 


. . I5.6'i7.2 


19.6 


19 7. 431 + 


0.20 


-14.7: 


1 -14.73 


19 18 52.004- 0.05 




46 




Polaris .... 


T. 


2 


• • 


. • 137.0,57.0 


• • 


48.011.0I . . 


■ ■ 


II 23.58- 


8.86 


• 4 


-14.83 


I 10 59.S9 -»- 2.5f> 




47 


V 


Piscium 


T. 


• 


28.2 


30.832.8'38.74T.o 


43. 149-350. 953-6 


24 40.89-1- 

■ 


0.15 


-14. 7< 


i -14.83 


I 24 26.21 — 0.02 




48 


7 


Tauri .... 


N. 


2 


• • 


. . ,27.529.631.7 


33.836.0 . . 


■ • 


12 3I.72'4- 


0.22 


— 14.8. 


\ -14.84 


4 12 17.10 4- 0.02 




49 


e 


Tauri .... 


N. 


2 


56.559.1 o.7| . . 


• • 


. . 118.019.6 


22.3 


21 9-371 + 


0.20 


-14. 8( 


) —14.84 


4 20 54.73 + 0.02 




50 


I 


Aurigse 


N. 


4 


24.1 


27.1 


29.0 


36.3 


38.7 


41.2 


48.3 


50.2 


52.3 


48 38.69 


i^__ 


0.12 — 14. 8( 


) -14.85 


4 48 23.96— 0.02 



9.36. Wire A used. 
11.33.37-38. Bisections at sets Band D. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



57 






I 

3 
4 

5 

6 

7 
S 

9 

10 

II 

12 

'3 
14 

15 ; 

i6 I 

'7 

I 

iS ' 

»'> i 

20 I 

21 

22 

23 
24 

2<; 

26 

27 

2S 
29 

30 
31 
32 



33 
34 
15 
36 
37 



I 



Circle 
Division. 



MICROSCOPE MICROMS. 



II 40 

147 54 
2lg 14 

187 40 



49 6 

5 4 
62 52 

55 34 

330 2 

326 38 
326 38 

347 20 

312 14 

47 10 

o 10 

22 36 

16 2 

15 30 
21 o 

46 54 

307 28 

49 »8 
II 40 

147 54 
33 58 

56 56 



58 14 

58 14 

187 40 

337 2 

56 16 

5 4 
62 52 

55 36 
326 38 



38 


326 38 


39 


347 20 


40 


59 54 


41 


312 14 


42 


132 44 


43 


323 34 


44 


25 10 


45 


36 


40 


310 16 


47 


24 10 


4S 


• 23 32 


49 


19.56 


50 


5 52 



I. 



r. 



// 



10.6 

5.5 
2.6 

9-5 



12.6 

8.4 

• 7.2 

7.3 

7.3 

5.3 

5-3 
9.6 

6.0 

II. o 

13.3 

17.3 

II. 9 

171 
17.6 

17.5 
18.1 

ig.4 
6.3 

15.1 
21.9 

23.8 



-14.4 

14.4 

8.3 
12.7 

14.8 
14.4 
13.4 
15.4 
II. 7 

II. 7 

13-0 

9-5 
13.6 

9.2 

12.6 
14.2 

13.0 
15.7 
15.2 

12.4 

10.3 

9.9 



II. 



// 



10.3 
6.1 

5.1 
10.7 



II. 7 
6.9 

7.8 

7.3 
6.6 

4.7 

4.7 
8.8 

5.8 

II. 4 

II. 9 

16.5 

10.5 

15. 1 

15.5 

17.4 
18.5 

19.7 

6.3 

15.0 

21.0 

237 



4.3 

4.3 
0.0 

1.7 

4.3 

3.5 
3.8 

5.4 
1.4 

1.4 
2.0 

9.7 
2.8 

0.2 

2.0 

3.8 

1.5 
4.8 

4.1 

0.9 
9.2 
8.1 



III. 



// 



5.0 
0.2 
0.6 

5.9 



6.0 
2.1 
2.2 

1.4 
2.6 

0.7 
0.7 

3.9 
2.1 

5.6 
7.6 

10.6 

5.0 
9.3 
9-4 
8.8 

13.0 

132 

0.6 

8.8 

I5-0 

17.5 



7.4 
7.4 
4.8 

7.4 

7.8 
8.0 
7.8 
8.6 
7.0 



IV. 



No. Barom. 



in. 



External 
Therm. 



Attached 
Therm. 



// 



4.1 

27.9 

27.1 
2.6 



4.8 
1.6 

1.5 
0.5 

1.9 

0.6 
0.6 

3.7 
1.3 
4.6 
6.9 

9.4 

4.4 
9.0 

9-4 
9.8 

133 

II. 8 
28.7 
5.8 
12.8 
14.0 



6.5 

6.5 
0.8 

.5.8 

6.5 
5.8 
6.2 

7.3 
6.2 



7.0 


6.2 


7»2 


6.3 


3.2 


1.8 


8.8 


7.0 


3.0 


I.O 


8.5 


6.4 


7.8 


6.4 


5.8 


5.0 


9-4 


9.6 


7.3 


7.7 


3.8 


4.7 


2.9 


3.5 


2.5 


2.3 



TELESCOPE MICROMETER. 



Rev. 



24 
25 
24 
22 



21 

24 

28 

27 
27 

26 

28 

25 
22 

29 
24 

27 

27 

25 

24 
22 

26 

26 

24 
24 

29 
22 



21 
22 
22 

27 

25 
24 

27 

25 
27 

25 

25 

25 
22 

25 

24 

27 
32 

28 

25 

27 
21 

21 



I. 



658 
050 

• • 

252 



850 

598 
190 



278 



214 



980 

558 
863 



530 
083 

■ « 

236 



213 
170 



086 



480 



2. 



554 



276 



857 
518 

160 
590 



328 

• • 

629 
169 



930 



512 
310 

828 

682 

• * 

304 
112 

640 



220 
275 
039 

790 
108 

504 
030 

770 

790 
522 

823 
178 
164 

712 
423 



958 
383 



460 



3. 



120 



845 



771 
593 

053 
no 



873 

• • 

80S 
303 



900 
770 



150 

■ • 

640 



4. 



500 
900 

• • 

130 



731 
430 
060 
512 



211 
816 
625 
030 



474 
354 
162 

828 

600 

• • 

190 
010 
556 



182 
246 
920 

700 
030 
480 
850 

828 

870 

553 
752 
128 
080 

580 
253 



988 
292 

102 
361 



5. 



475 



080 



710 

455 
984 



240 

• ■ 

810 

■ • 

038 



552 
290 

• • 

805 



492 
048 

■ • 

108 



114 
030 



480 
070 

• • 

104 

852 

319 



*o o 

C O 



10.3 
10.3 
10.3 
10.3 



10.3 
10.3 
10.3 
10.3 
10.3 

10.3 
10.3 
10.3 
10.3 
10.3 
10.3 

9.0 

9.0 
9.0 
9.0 
9.0 
8.9 

8.9 
8.9 
8.9 
8.9 
8.9 



8.9 
8.9 

8.8 
8.8 

8.8 
8.8 
8.8 
8.8 
8.8 

8.8 
8.8 
8.8 
8.8 
8.8 

8.8 
8.8 
8.8 
8.8 

9.3 

9.3 
9.3 
9-3 



Apparent 
Zenith Dis- 
tance, South. 



B 
o 
•« I.: 

E 



// 



II 

147 
219 



43 
57 
17 



187 44 



38.3 
37.0 

50.7 
13.9 



49 10 18.8 

5 7 41-9 

62 54 46.3 

55 39 29.5 

330 450.5 



22 38 51.6 

16 445.5 

15 33 159 

21 3 33.2 

46 58 6.6 

307 30 53-2 

49 20 56.0 
II 43 37.2 
147 57 37.2 
34 o 17.4 
56 59 54.6 



58 18 26.4 

58 18 9.2 
187 44 13.2 
337 4 58.5 

56 19 14.7 

5 7 41.1 
6^54 48.5 

55 42 0.3 
326 41 15.6 

326 40 45 . 3 
347 23 19.7 

59 57 18.9 
312 18 10. I 

132 47 29.6 

323 37 33.5 
25 12 50.9 

36 I 33-8 

310 18 38.6 

24 13 21.4 

23 34 56.6 

20 o 18.2 

5 56 27.2 



/^ar summary of the elements of reduction see page 3. 



402 



416 



423 



326 41 16.8 428 
326 40 46.8 
347 23 21.0 . . 
312 18 II. 3 431 
47 12 27.5 
o 13 43.2 



361 



319 
265 

252 



303 
349 
349 



351 



361 

• • 

363 
363 



371 

• • 

373 

• • 

378 
373 
373 

320 

• • 

303 



Refraction. 



4- 






+ 



-f 
-h 

4- 



4- 



// 



-H I 

-h I 
+ I 



II. 6 

35.1 

45.7 

7.7 



51 
5.0 

49-7 
22.4 

32.5 

37.3 

37.3 
12.9 

2.0 

0.9 

0.2 



-h 23.2 



4- 
+ 
— I 

4 I 



-h I 



15.9 
15.4 

21.0 

58.0 

II. 4 

3.9 

11.5 

34.7 

37.4 
25.2 



I 29.6 
I 29.6 

7.5 
23.5 



23.3 
50 

48.3 
21.3 
36.6 



— I 

-I- 



36.6 

12.5 
36.0 

1.3 
0.2 

41. 1 
26.3 
40.6 
5.6 
25.1 

24.0 
20.1 

5.7 



No. 



33 



Apparent N. 
P. Distance. 



// 



62 50 I I. I 

83 9 193 
II 47 44.6 

43 21 59.6 



(A 



V) 



- c 

c o 

ct • - 

(A ^ 
— • o 

^ U 



II 

1.0 
0.5 
1.5 
2.3 



100 17 45.1 -H 0.1 

56 14 8.1 -I- 0.5 

114 2 57.2 |— 0.4 

106 47 13. 1 j- 3.9 

21 10 39.2 '— 2.5 



17 47 .0.7 
17 46 30.7 
38 29 29.3 

13 23 30.5 
98 19 49.6 
51 20 4.6 

73 45 36.0 

67 II 22.6 
66 39 52.5 
72 10 15.4 
98 5 25.8 
358 35 3-0 

100 28 21. I 
62 50 9.9 
83 9 18.7 
85 7 16,0 

108 7 41.0 



109 26 17.2 
109 26 0.0 



- 0.8 



4- 



0.5 

1.5 

2.5 
0.0 



- 1-3 

- 2.4 

— 2.3 

— 9.8 

— 1.0 

— 1.0 

- 1.3 

-I- 0.1 

-H 0.1 

- 0.7 

1— 0.8 



-II. 7 
— 28.9 



43 22 0.5 — 0.9 



28 10 56.2 

107 26 59.2 

56 14 7-3 
114 2 58.0 
106 49 42.8 

17 47 0.2 



+ 1.3 



4- 



17 46 
38 29 

III 5 

3 23 

98 19 

14 43 
76 19 

87 8 

I 23 

75 20 

74 41 
71 6 

57 2 



29.9 
28.4 
16. 1 
30.0 

51.8 

13.6 

38.4 

35.6 

54.2 

7.7 

41.8 

59.5 
54.1 



0.2 
0.4 

3.9 
0.7 



— 31-0 
4- 0.2 

— 0.9 

— 1.4 

— 0.1 

— 2.0 

— 0.3 
4- 1.3 

— 1.7 

-- 1.2 

— 1.7 

— 2.0 

- 1-3 



MOON'S— 



Parallax. 


Scmi-diam. 


/ // 

- 45 58.1 

• 


/ // 
4- 15-7.8 



8 



58 



OBSESVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1 868. 
July 2 



I 



E 

a 



I 

2 

3 

4 
5 



12 

13 
14 

15 

i6 

i8 
»9 

20 

21 
22 

23 

24 
25 

26 

27 

28 
29 

30 

31 
32 

33 
34 
35 

36 

37 

38 

39 
40 

41 
42 

43 
44 
45 

46 

47 

48 

49 
50 



OBJECT. 



Sun I, S. . 
Sun II, N. . 
Venus I, N. 
Polaris, S. P. 
a Virginis, (R). 



6 jf 

7 a 

8 a- 

9, ,i 

10 .i 



Bootis, (R.) 
Bootis, (R.) 
Librae. . 
Urs* Minoris 
Bootis . 



48 (H)Cephei, S. P. 
ti Libne, (R.) 
/i Bootis . 
a Serpcntis . 
Saturn I, S. 



Saturn II, N. 
,i Scorpii . 
F Ursx Minoris, 
a llcrculis 
6 Ophiuchi . 

Moon, N. . 
\IA Draconis, (R.) 
6 Ursx Mmbris 
n Tauri 
a Auriga 



(R 



a 



Sun, S. 
Sun II, N. . 
Venus I, N. 
Hydrac . 
Librx . 



li Ursx Minoris 
48 Cephei, S. P. 
fi Librae . 

Coronx Bor., (R.) 
Serpcntis, (R.) 



a 



a 



15 
V 

K 
d 

e 

a 

f 



Serpcntis . 
Saturn I 
Saturn II 
Herculis 
Scorpii . 

Draconis . 
Herculis 
Ophiuchi . 
Herculis 
Ursae Minoris 

Herculis . 
Sagittarii . 
Sagittarii 
Ursx Minoris 
Moon I, N. 



t 
O 



N. 
N. 
N. 

N. 
N. 

N. 
N. 
N. 
N. 
N. 

N. 
N. 
N. 
N. 
N. 

N. 

N. 
N. 
N. 
N. 

N. 
N. 
N. 
E. 
E. 



E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 

E. 
E. 



E. 
E. 
E. 
E. 
E. 






3 
3 



2.4 

5 
4 
4 
5 
4 

4 
4 
4 
4 
4 



4 
3 
3 
3 

4 
4 

2 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



3 sr. 



I. 



45.6 

2.8 



IL 



III. 



IV. 



48.3-50.0 

5.7I 7.4 



V. 



40.843.445.1 



18. 1 

27.0 
41.6 
38.6 

37.9 



20.922.3 

29.831.4 
44.446.0 

41. 3142. 9 
47. 753-2 

• . ! 9.5 



56.758.9 1.2 
13. 9116. 218. 3 



VI. 



VII. 



VIII 



51.5153.755.8 



28.6 



37. 
52. 

49. 
16. 

12. 



2.5 



7.7 
24.9 

2.2! 



IX. 



9.512.2 

26.6J29.5 
3-9' 6-7 



Mean wire. Inst. 



I 



38.a27.5j25. 0-40. 5 



40. 

54. 



6; 24 
1.14 



30. 7 32. 7 39-040. 443.0 



42. 248. 7'50. 3.53.0 

5.i| 7.8 

i.4i 4.1 

1.1,10.6 



56.8; 3.5 

53.559-8 

4|32.0j55.3 
9 17.6120. 3 



m. s. I 
46 58.90 
49 16.14^ 
12 53.68' 
II 1.72! 
18 30.63, 



s. 

-h 0.18 
4- 0.18 
4- 0.21 
-4-I0.66 
-h 0.25 



Clock 
appar'nt. 

s. 




Apparent R. I ~ H 
Ascension. r. ^ 






I 



50.2I38.731.71 3-9,55 

i|ii. 
1:46, 

71 2, 
19.521.624. 



58.81 1.4: 3.0 
3i.3'34-5|36.4 
50.4I53-054-5 



9- 

44. 

o. 



0.45.9 18.0,11.059.3 
2J13.3J19. 4-20.9,23. 5 
8i49-4l57. 1159-01 2.2 



I 



4.8|ii.oi2.5 
26.1 28.3 



12.3 14.9116.6, 
50.0I52.654.3 o. 

• •*•• •• •■ 

' ' 20 
22.625.4I27.033. 



8; 3.0! 5-1 
14.830.1 



15. 1 



33.7,35.4,38.0 



I 
48 40.04! 
9 54.70 
43 51.36 
51 24.31 
57 14.88 

I 

3 54.86 

10 II. 18 

19 46.75 
38 2.76 

52 23.90 



-f 0.06. 

-h 0.06 

-H 0.37-15.05 .- 

— 0.70" 

-h 0.06 



-f- 
-f- 
•4- 
•4- 



1. 51 
0.24 
0.08 
0.26' 

0.38, 



14.98 , 
15.10 



I 



II.6;I3.2|I5.9| 

o. 3". 530. 2 

i)23.3]24.3;25.3'26.3.32.7 
7 36.0138.2 44. 9' 46. 6 49 -4 



-h 



22.557.832.71 6.3 



40.3' 



6.O1 8.811.7,14.6 17.5 



52 25.15 -h 0.38 

58 2.95 

59 59-74 
8 54.80 

18 35.98 



0.39-15. 12 ,- 
— 3.00 . . ( — 
-h 0.22 —15. 12 — 
4- 0.41 —15.12 — 



s. 
4.89 
4.89 
4.92 

5-03 
5.03 

5.04 
5-05 
5.06 

5-07 
5.07 

5.07 
5.07 

5.08 

5.08 

5.09 

5.09 
5.09 

5. 11 
5.12 

5. 12 



h. m. s. 5. 

6 46 44. 19 . . 
6 49 1.43 
8 12 38.97 4- I. V 
I 10 57.35 — 0.53 

13 18 15.85 — O.U4 

13 48 25.06 — 0.14 

M 9 39-7' — 0.03 
*4 43 36.67 — 0.03 

14 51 6.54 -»- 0.25 

14 56 59. 87 -h 0.05 

I 

3 3 41.30 -»- 0.17 

15 9 56-35 -^ ocu 
15 19 31.75 — o.io 
15 37 47.^ + O.U2 
15 52 9.19 

I 15 52 10.44 

15 58 48.25 4- o.a-* 

16 59 41.63 4- o. I" 

17 8 39.9<> o.it.> 
17 18 21.27 0.CIJ 



15 31.88 - 4.29; 



• • 



7 11.724- 0.06— 15.51 — 



. .1 1 50. 054 ■ 

10.7113.5115.1121.5,23.525. 



8.8 
39.1 



11.3 |i2.8'i9. 
4i.8i43.4l49. 



23 
54 



38.548.1 53.617. 

.... 1 14. 5 4 . 
59. ii 1.7I 3.4| 9- 

9.5 12. 414. 221. 

50.9:53. 5;55.2| I. 



1I21.2 
7i5i.8 

' i 
1,24.232 

855.0,46 

3'". 4113 
023.4:25 

2 3.3" 5 



i|55. 1156.2:57.3 
6,3i-9|33-7'36.4, 
1129.330.8133.5 

O 0.2| 1. 91 4. 51 

V55.7' I.211.0 

2,37-4i . . ' • . 
5 19. 721. 223. 8 

532.434.337-0 

411. 4113. 0,15. 6 



53 24.10+ 0.21 . — 

II 23.54 4- 0.24. . . ' — 

21 21.104- 0.35 —15.41 ,— 

43 51.82+ 0.39-15.54 - 

51 24.62 — 0.61 . . — 

3 55-58 -I- 1.46 . . — 

10 11.464- 0.35—15.49 — 

29 23.30 — 0.03 

38 3.28 4- O.I2' 



• • 



■ • 



i9.o|2i.6l23.3'29.33i 

- . 13 



46.049.752.01 0.7 3. 

23. 026. 0,27. 6134. 436. 538. 845. 9'47. 7150.4 



4,33.3,39 
o!i5.i!i7 

. . 122 
6. 7115 



.741.243-7 

2i 
.924.627.2 
.7 I8.1I2I.7 



59.3- 6.6'io 

24.0j27.529 

. . I . . 38 

46.950.051 



I 

.9127 

-5137 
-5140 

.859 



44 31-39 +- 
52 12.97,-f 

52 14.35 + 
16 3.81 + 
21 36.704- 



0.30-15.50 - 
0.40 . . I— 
0.40' . . — 
0.05 . . — 
0.44-15.49 - 



8,33. 
2140. 

7142. 
I. I. 



42.545.4.46.9I53 

23.3'26.428.235 

56.859.6' 1.4! 8 

.... '23.0^57 

1.8 4.0 5.7.12, 



5 
29.M3.4I58.5 
I 
3;55. 
2|37- 
oiio. 

5I31- 
6114. 



739-2,56 
0.42.550 
8 44 . 8 46 

39" 
13-6 



.4 0.51 7-6 

.2|52.3'55-5 
. 9- . . I . . 
.4 13.1 16.3 



29.0 



4l57-5| 3 
6I40.0I47 

Ill2.2:i8 
5! 6.0,42 



.6 5.1; 7.81 

.2I48.85I.8, 



.7 



.0 

7II7.023.4 

I I 



20.223.2 

I 

25.328.1 



28 33- 
38 39- 
51 42. 
57 I. 
59 58. 

8 55- 

57 37- 
6 10. 

15 31- 
20 14. 



56- 

86,4- 

74-1- 
561-h 

79!- 

I 

28 + 
61I4- 
02 4- 
92- 

73 + 



0.33 

O. II 

0.281 
0.16; 
1. 61' 

0.25 
0.46 
0.41 
4.02 
0.41 



-15.64 - 



• • 



-15.63 ;- 
-15-52 1- 
-15.56 I- 



5.14 ' 18 15 12.45 -r O.lS 
5.26 I 5 6 56.52 + 0.21 



5.31 

5-34 
5-37 
5-52 

5-52 
5.52 
5-53 
5-54 
5-54 

5.54 
5.55 
5.55 
5-56 
5.56 

5.56 

5-57 
5-5S 
5.58 
5.58 

5.58 
5.60 
5.60 
5.61 
5.61 



6 53 9.00 

8 II 8.44 -t- 

9 21 6.0S -I- 
4 43 36.69 

4 51 8.494- 
3 341.524- 

5 9 56.28 - 

5 29 7.73 + 
5 37 47-86- 



5 44 16.15 — 
5 51 57-82 

5 51 59- 20 

6 15 48 . 30 4- 
6 21 21.5 



■6S.0f 

0.04 
o.rir' 

0.2^1 

0.2v 

o.i>? 

0.0^ 
O.t-'i 

0.0^ 



ii — 



6 
6 
6 
6 
6 

7 

7 
8 

8 

8 



28 17. 
36 24. 

51 27. 

56 46. 

59 41. 

8 39 

57 22. 

5 54 
15 12 

19 59 



67- 

40 ■¥ 

44 + 

14 + 
60 4- 



o.<'' 
0.05 

o . c^ 

O. I'i 

O. 10 
O.I7 



95 4- 0.05 

47- o.ir 

83 4- 0.04 

2Q -h 0.16 

53 +65. 5^ 



9. 1 1. 18. 22. Bisections at sets B and D. 
19. Set E and VII in R. A. 
27, Set E in R. A. 
31.50. Bisections at sets B and D. 
32. Bisections at C|, C3, and C5. 
43. A change of one revolution made in reduction. 
50. Microscope revolutions not recorded. 



Observations with the transit circle. 



59 



Circle 
g Division, 



I 

2 

3 
4 

5 



7 

S 

9 

10 

II 

12 

13 
15 
16 

16 

17 
18 

2<) 

21 
22 
23 
24 

25 

26 

27 
2S 

29 

30 

31 
32 

33 
34 
35 

3^' 
37 

33 

y) 
40 

41 

42 

43 
44 

45 

46 
47 
4^ 

4'> 
so 



16 6 

15 34 

21 10 
307 28 
130 36 

160 6 
160 56 

54 18 
324 8 

357 56 

296 6 

132 10 

I o 

32 o 
56 56 

56 56 
58 14 

223 16 
24 16 
62 52 

57 57 
213 16 

312 14 

22 36 

352 53 

16 12 

15 40 
21 20 

46 54 
54 18 

324 8 
296 6 

47 42 

l()S 12 

M7 54 

33 58 



352 12 
64 56 

329 48 

359 38 
29 14 

5 4 
316 36 



24 
69 

59 
312 

58 



18 
12 

54 

14 
40 



MICROSCOPE MICROMS 




r. 



19-3 

18.8 

18.0 

10. 

8.8 

9.4 

7.2 

11.2 

11. 1 
12.5 

9.2 

13.5 

15.7 

15.7 
8.0 

8.0 
9.0 

8.7 

13.7 

8.0 



II. 


III. 


II 


II 


18.8 


II. 8 


17.0 


10.2 


16.2 


91 


10.2 


3.7 


II. 2 


3.3 


12. 1 


4.2 


7.7 


1.8 


II. 5 


4.6 



12 



2.1 

7.7 

7.8 

20.2 

lo 23.8 

18.5 

15.4 
20.5 

19.4 
20.0 

10 21.0 
22.0 
12.8 
16.5 

10 9.2 



10.2 
10.7 

8.8 
14.0 
14.2 
15.2 

7.9 

7.9 
8.9 

II. 2 

12.5 

8.7 

2.1 
9.2 

6.8 
19.7 
21.8 

17.3 
15.3 
19.4 
19.2 
21.8 

20.0 
21.5 
14.2 
15.0 
9.4 



16.5 15.0 



16.2 
16.8 

17.3 

14.7 
10 14.5 

14.0 

14.0 

10 20.0 
II. 2 
13.8 
15.0 
13.8 



15.0 
17.5 

16.2 
14.6 

13.8 
12.5 i 
13.2 I 

19.7 
12.8 

15.0 

13.3 
14.3 




Apparent. 
Zenith Dis- 
tance, South. 



16 9 16.2 

15 37 48.6 

21 13 26.1 
307 30 52.3 
130 39 1.6 

160 10 24.2 
160 59 1.3 

54 21 54-1 
324 12 18.2 

357 58 41.3 

296 9 54.0 

132 13 44.2 

I 2 54.4 

32 2 22.9 

56 59 47.8 

56 59 31.5 
58 18 38.2 

223 30 44.7 

24 20 28 . 2 

62 54 48.2 

57 59 46.3 
213 18 45.2 

312 18 8.5 

22 38 54.2 
353 2 20.8 

16 14 II. 9 

15 42 43.7 
21 23 0.2 

46 58 8.5 

54 21 54.5 



S 

o 



J^ 



324 12 
296 9 

47 46 
168 16 

147 57 



18.5 
56.1 

15.0 
22.1 

35.9 



34 o 18.2 



352 15 48.5 
64 59 50.8 

329 50 41 -9 

359 42 58.5 

29 18 2.6 

5 7 416 

316 39 15.8 

24 20 28.4 
69 16 27.4 

59 57 19- 8 

312 18 9.5 

58 43 0.01 



No. I Barom. 



External 
Therm. 



Attached 
Therm. 



in. 



For summary of the elements of reduction see page 3. 



249 
225 

273 



288 

• ■ 

310 
313 



318 



325 
341 



35 
358 



277 

• • 

250 



Refraction. 






-h I 



-h 






I 
I 



+ 

-h 
-h 
-H 
-h 
-+- I 

-«- I 
+ 
— I 



+ 



II 

15.9 

15.3 
21. 1 

10.9 
3.5 

19.7 
18.9 
16.5 

39.7 
1.9 

51.5 
0.6 

O.I 

34.5 
24.7 



I 24.7 

I 29.1 

52.2 

25.1 
I 47.8 



28.5 

36.4 
I.O 

23.0 

5.7 

15.9 
15.4 

21.4 

58.0 
17. 1 



Apparent N. 
P. Distance. 



// 



67 15 53.3 
66 44 25.1 

72 20 8.4 
358 36 2.6 
100 28 23.1 

70 56 16.7 
70 7 38.8 
105 29 31.8 
15 18 59.7 
49 5 0.6 

347 14 »3.7 
98 53 37.6 
52 9 16.6 
83 9 18.6 

108 7 33.7 

108 7 17.4 

109 26. 28.5 

7 44 44.3 

75 27 14.5 

114 2 57.2 

109 7 36.0 

17 46 59-6 

3 23 28.7 

73 35 38.4 
44 8 36.3 i-H 



M 



W 



.- C 
B O 

u ^ 



II 

- 2.4 

- 2.3 

- 9-9 

- 1.5 
-h 0.8 

— 0.1 
-h 0.9 
-H 0.8 

- 1.9 

- 1.7 

— 0.2 
+ 0.4 

— 0.8 
H- O.I 

— 0.8 

— 0.8 

— 0.4 

- 0.7 
-h 0.3 

- 0.5 



1.0 

2.3 
1.3 
1.7 



67 20 49.0 
66 49 20.3 
72 29 42.8 

98 5 27.7 
105 29 32.8 



39.9 


15 17 59.8 


I 52.3 1 


347 14 25.0 


I 1.0 ' 


98 53 37.2 


II. 5 


62 50 10.6 


34-7 ■ 


83 9 20.0 



- 2.4 

- 2.3 

— 10.2 

-h 1.2 

-h 1.8 



-h 



1.7 
1.2 

4- O.I 
+ 1.6 



-H 37.4 ' 85 7 16.8 + 0.3 



H- I 



7.5 
58.4 

32.2 

0.3 

31.2 

5.0 

52.5 



■¥ 25.1 

-h 2 25.8 

-H I 36.9 

— I I.I 

+ I 31.3 



43 22 2.2 

116 8 10.4 

20 56 30.9 
50 49 19.4 
80 24 55.0 
56 14 7.8 

7 44 44.5 

75 27 14.7 

120 25 14.4 

III 5 17.9 

3 23 29.6 

109 50 52.5 



-H 1.2 

-H 1.8 



4- 0.5 
-h 2.9 
1.2 
I.I 
0.3 






-h 0.7 

-\- 0.3 

-h 0.9 

— I.I 



No. 



MOON'S— 



Parallax. 



21 
50 



46 29.2 
46 32.5 



Semi-diam. 



4- 15 0.8 
-f- 14 55.0 



60 



OBSERVATIONS WITH TH£ TRANSIT CIRCLE. 



DATE. 



i86S. 
July 3 



8 



10 



II 



E 

9 



I 

2 

3 
4 

5 

6 

7 

8 

9 
lo 

II 

12 

13 

M 

15 
i6 

I? 

i8 

19 

20 
21 
22 

23 

24 

25 
26 

27 

28 

29 

30 

31 
32 

33 
34 

35 
36 

37 
38 

39 
40 

41 
42 

43 
44 
45 
46 

47 

48 

49 
50 



OBJECT. 



I Aquilse 
Polaris . 
Ccti . 
tf Piscium 
a Tauri . 

Sun I 
Sun II . 
Venus I, N. 
tf Virginis 

Polaris, S. P. 



a Lyras 
51 (.ephei, S. P. 
{i Lync . 
C Aqutlne . 

Moon II, N. 
(5 Aquilx . 



Sun I, S. . 
Sun II, N. . 
Venus I, N. 
Tauri 
Aurigae 
Tauri 



a 
a 
3 



a 
a 



Sun I, N. . 
Sun II, S. . 
V^enus I, N. 
Hydrae . 
Leonis . 
>* Leonis . 

I Aquilae 

a Lyrae 

/? Lyrae 

a Sagittarii 

fi Orionis 

li Tauri 

a Canis Venat. 
Polaris, S. P. 



K Ophiuchi 

€ Ursae Minoris 

y Draconis 

}^ Sagittarii 

d Ursae Minoris 

u Piscium 

Moon II, N. 

Polaris . 
d^ Ceti. . . 
tf Piscium 
fi Orionis 
li Tauri 

Sun I, N. . 
Sun II, S. . 



t 
it 

O 



E. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 



T. 
T. 
T. 
T. 
T. 
T. 



N. 
N. 
N. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
T. 
T. 

T. 
T. 



E. 
E. 
E. 
E. 
E. 
T. 

T. 
T. 
T. 
T. 
T. 
T. 

T. 
T. 



bo 



3 
3 



3. 



4 
3 

3 

3 

2 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



I. 



56.0 

29- 5 
29.2 

24.0 



IL 



IIL IV. 



57.0 



14. 917. 2 
46.0; 8.0 



V. 



VL 



vn.yiii 



32.o'33.5;39.8;4i.8 
32.o;33.5 39-9!42.0j44.2 
26. 728. -1134. 636. 8-38. 8 



19. 1 21.323.2 
34.0 . . . . 

43.8 50.o'5i.5 
50.552.0 



'10.3 



12.4 



18.6,21.2,23.029.7 



14.7I16.8 
31. 8134. 2 



IX. 



Mean wire.' Inst. 



Clock 
appar'nt. 



m. 



s. 



s. 



Clock 
adopted, 



54.0 

54.7 
45.246.849.5 



19.2 

40.8 J2. 4 



3i.8 34.6 36.i42.5'44-^4<>.8 53.2 54.8 



8. 

28 19. 14+ 0.35—15.63 
II 32.50'— 14.751 . . 
17 41.77'+ 0.50-15.99 , 
24 42.00,-H 0.36: — 16.01 I 
28 36.74+ 0.34 — 16. II 



13.7 16.2 17.824.0 
50.023.0 



45.21 

57-5, 



58.0J14.0 
19. 621. 428. 6 



25.927.8134.035.538.1 
39.0*16.0 



29.230.637.0I39.2I41.3 
7.7;i2.3'i4.3''^ ""^ ** 



59-4 



0.9 7.0 



16.5 
26.5 
6.2 
56.8 

16. 1 

32.8 

. . I . . J . . I i.o 3. 

25.828.530.036.438.5 

Ii.3'i4.3 
12.3 14.6 



31.050.0 
31.333.7 



41.042.7 

. ,. _47. 549.1 
i6.6i8.82i.l!25.5 



45.7 
51.8 
27.2 



55 14.68 4- 0.30, 
57 3I.8&I-I- 0.30] 
9 44-66 -H 0.33, 
13 25.89 -h 0.451-16.33 - 
II 2.30 + 15.67 



9. I'll. I 17.3 18. 721. 3- 



18.920.527.229.231.438 
35.6i37.3l44.046. 



2 
01 



56.6 
0.6 



39.9 
44.4 



0.3' 
3.6 



42.4 
47.2 



25. 5*28.2 



2.5 
5.3 

32.1 

44.2 



18.2 

II. 8 
17. 1 



54.5 



33.6 
50.8 

48.7'55.3 

19. 4j . . 

29.7:35.9 



36. 
53. 
57. 

38. 



48.455 

5.3 9 
40.647 

17.226 

17.0)23,925.9 



38.2 
55.2 

59-3 
125.6 
I 40.2 



.139-7 
.056.7 

.7I11.2 _ , 

.0148. 6(51. 3 
.o27.8'3i.7 



41.6 

59.5 
13.9 



37 32.2814- 8.28 
45 31.17,+ 0.21 -16.54 
59 39-13]+ 0.36,-16.58 j- 
15 16.63'+ 0.57; . . 
19 9.07+0.42—16.59 



3 29.i9i+ 0.31 



5 46.17 

6 1.04 



+ 
+ 



0.31 
0.36 



28 38.52;+ 0.40—17.80 

17.89 



7 14.19 



54.957.159.2 



9.2 II. 8 13.4 
33.036.4I38.4 



19.6 
46.3 



1.3 



21.623.5 

48.7151. 3 



2 
3 



36.1 



41.9 
19.6 

• • 

34.6 

34-5 
19.7 

3.8 



3-3 



21.2 
14.2 
19.6 



57.8 
52.0 



23.2130.633.0135.5 



16.0I22.7 
21.427.4 
13.0 



40.3 

• ■ 

44.4 
21. 1 

■ • 

37.2 

37.1 
22.2 

6.9 

• • 

6.0 



59.6 
30.0 



33-1 
42.6 

37.8 

• • 

46.0 



7.6 
6.0 



48.7 
52.6 
40.2 

• • 

52.2 



25.327.4 
56. 0119. o 

38.744.8 



38.8 

23.9 
8.6 



7.7 



45.0 
30.1 
15.6 



14.4 



25.027 
29.6 

15.3 



39 
I 

5 
27 
46 

3 



28.6 18 14.62 



•9' * * 

.7 3.5 6.3; 

.9 7.5 10.2 

. 8' . . j . . I 

.348.050.6 

.6; . . 



+ 



0.07. 

0.28 —18.01 



29.831.5 

59.2 

42.6 



1.2 
44.5 



34.0 

4.6 

47.6 

38.7 



7 35.97 + 
9 53.00 

3 57.32 
21 23.59 

I 38.06 
12 59.22 



10.3 
41.0 



3.8 

55-7 

42.5 
37.0 

54.2 



34.236.0 

31. 7|37. 839.541. 9 
17.724.626.429.3 



26.0 



0.34 
+ 0.34 
+ 0.39 
+ 0.59 
+ 0.43 
+ 0.36 



18.16 

18.05 — 

18.06 I— 



28 21.60+ 0.59—18.30 

32 48.7^+ 0.17—18.32 

45 32.94+ 0.23-18.32 

47 25.10+ 0.75— 18.36 

8 29.561+ 0.64—18.72 

18.75 



I2.920.6;22.7 



14.0 



29.028.0 



18.534.3 • . 

59.0 9.o|ii.2 

44.847.3 

• • 

56.2 



29.531.5 



41.0 



18 15.35 

50 10.22 

II 3.99 



+ 0.31 



I 



2.4 

33.8 



43.0 
47.0 
47.1 

32.1 

17.9 



16.5 



8.0J 

49.1 
49.3 
34.2 
20.3 



18.7 



31. o 
55.2 

55.5 
40.2 

27.2 

8.9 
25.3 



4.0 

37.9 

56.6 

57.1 
41.8 

28.8 

10.6 
27.1 



15.4 

• m 
■ • 

6.5 
39.4 
59.5 

59-9 
44.5 
31.7 

13.2 

29.81 



o 3-75 
53 55.77 
37 42.50 
15 37.10 
52 54.20 

9 29.50 
II 43.70 

17 46.97 
24 47.14 

8 32.08 

18 17.86 

24 0.06 
26 16.53 



+ 0.18—18.98 ; — 
+ 20.54 



s. 

5.62 
6.03 
6.03 
6.04 
6.12 

6.19 
6.19 
6.22 
6.34 
6.36 



Apparent R. 
Ascension. ' 



h. ni. 

18 28 



6.52 
6.52 
6.53 

6.53 
6.54 

7.55 
7-55 
7.57 
7.97 
7.98 
7.98 

8.02 
8.02 
8.04 
8.08 
8.09 
8.10 

8.30 
8.31 

3.31 

8.31 

8.73 
8.74 

8.96 
8.97 



I 
I 

I 

4 

6 
6 
8 
12 
I 



s. 

3.87 
II I , 72 
17 26.24 
24 26.32 
28 20.96 



— u 



S. 

0.05 

2 45 

0.04 

0.02 
0.01 



54 
57 
9 
13 
II 



58.79, 

15.9*1 

28.77 + 

10.00 — 
1. 61 + 



I .U2 
0.02 

l.r/j 



6 37 
18 45 

18 59 

19 15 
19 18 

7 3 

7 5 

8 5 

4 28 

5 6 
5 17 



24.04-?- 2.12 
14.86 + 0.04 
22.96 + 0.05 
0.67—65.11 
52.95 + o.oO 

I 
11-95 

28.93 . . 
43.83+ 1.94 

20.95 — COM 

56. 28 — 0.13 

56.92 



0-02 



7 

7 
8 

9 
10 



7 

9 

3 

21 

I 



18.29 

35.321 
39 67 + 
6.10 + 
20.40 — 



10 12 41.48 — 



o.o? 
0.05 
0.02 



— 2.91 
+ 0.03 
+ 0.67 

- 5.64 
+ 0.43 

+ 0.49 

— 16.00 

+ 0.53 
+ 0.37 
+ 0.53 

+ 0.26 

+ 0.32 
+ 0.32 



1-20.55 
j-20.58 

20.59 —20.58 

-20.59 



—20.99 



—21.00 
—20.94 
+21.07 
—21.14 



— 20.98 

—20.99 
—21.02 
—21.03 
—21.03 

—21.18 
—21.18 

—21.25 

—21.25 



18 28 3.8<> ^ 0.04 
18 32 30.65-1- o.oi 
18 45 14.86 + 0.03 
18 47 7-54 + o.t»2 
5 8 11.47 o.^x^ 
5 18 56.92 0.<«' 

12 50 51.44 + 0.03 
I II 5.56 + 2.64 



16 59 40.29 — o.4f 

17 53 35-22 + o.i.> 

17 57 22.59 — 0.02 

18 15 10. 87— 0.20 
23 52 33.65 — 0.01 

9 9.00 — 61. <^ 

1 II 6.68 + r.74 
I 17 26.47 — 0.03 
I 24 26.48 — 0.tK4 
5 8 11.43— o.i<^ 
5 17 56. <^— O.Of 



7 23 39.13 
7 25 55.60 



32. Wire B used. 

49. Seems i rev. wrong. 



observatkJms with the transit circle. 



61 



V 

B 
3 



Circle 
Division. 



3 
4 
5 

6 

7 

. 8 
9 

10 

II 

12 

13 
U 
t5 
i6 

17 

iS 

19 

20 
21 
22 

23 

24 

25 
26 

27 

2"^ 



I 



29 i 

30 
31 
32 
33 
34 



37 
3S 

39 
40 

41 
42 



, 49 
I 50 



No. 



47 10 
310 16. 

47 42 
24 10 
22 36 



21 30 

38 46 

307 23 



o 
306 

5 
25 



10 
6 

36 
S 



58 24 
36 o 

16 28 

15 56 

21 46 

22 36 

352 58 

ID 20 



16 
16 
21 
46 
26 
18 

47 
o 

5 

65 

47 
10 20 



2 

34 

54 

54 

14 
20 

10 
10 

38 
l3 
10 



35 359 48 

36 I 307 28 



29 14 
316 36 

347 20 
69 12 

312 14 
32 44 



43 


41 30 


44 


310 16 


45 


47 42 


46 


24 10 


47 


47 10 


A^ 


10 20 



16 32 

17 4 



MICROSCOPE MICROMS. 



TELESCOPE MICROMETER. 



I. 



r. 



10 



19.7 
16.6 
15.6 

15.5 
17. 1 



19.8 

19.3 
14.6 

18.6 
18.5 
18.5 
21.6 
19.0 
17. 1 

10 24.0 
10 22.4 

10.8 
10 13.4 
10 12.5 

10.5 

15.3 
9.6 

6.0 

9.0 

10 7.8 

10 9.6 

10 10.5 
135 

8.2 

5.7 
7.6 

18.7 

9.4 
6.2 

"3 
6.5 
7.9 
7.5 
4.0 

4.8 



6.8 
7.0 
6,2 

1.5 
10.5 

7.3 



10 10.7 
10 9.1. 



II. 



II 

195 
17.7 
17.0 

15.4 
16.0 



18.3 

17.3 
14.5 

18.3 

19.5 
19.0 

21.7 

18.3 

17.3 

23.5 
22.2 

10.6 

13.6 

9.5 
9.9 

14.6 

8.7 

7.7 

9-7 
6.8 

8.7 

12.5 

13.8 

9.0 

8.8 

8.5 
19.0 

9.9 

8.5 

"5 

7.8 

7.6 

10. o 

3.5 
5.6 

8.0 
7.0 

7.3 

I.O 

II. 4 

7. "7 

10.9 
9.8 



III. 



II 

12.4 
10.9 

9-3 
8.0 

8.5 



10.3 
8.9 

7.8 

12.3 

14.5 
12.3 

14.2 

9.6 

9.3 

17.2 

15.5 
2.2 

6.8 

5.5 
3.5 

6.8 

1.8 

29.0 

1-5 
0.0 

1.7 

4.0 
8.0 

2.3 

1.3 
0.4 

12.4 

2.3 
1.6 

5.5 
1.0 

2.3 
2.0 

29.8 

28.3 

1.4 
I.I 

0.3 
24.0 

3.8 

1.5 

38 
3.3 



IV. 



// 



II. 8 

"3 

8.5 
8.0 

8.2 



11.3 

8.7 
8.0 



Barom. 



External 
Therm. 



in. 



Attached 
Therm. 



Rev. 



28 

27 

28 

25 
27 



29 
26 



v.! • VX 


*/ 


10.5 


23 


13.5 


25 


II. 6 


19 


13.2 


19 


10.6 


20 


9.8 


32 


15.8 


24 


13.9 


22 


2.4 


24 


4.8 


27 


3.5 


21 


2.4 


23 


6.1 


21 


2.3 


23 


27.7 


24 


0.0 


22 


29.7 


28 


1.4 


27 


3.0 


29 


5.7 


24 


1.8 


28 


1.0 


25 


29.7 


22 


10.5 


22 


1.3 


24 


1.6 


27 


3.5 


22 


0.0 


26 


1.8 


26 


1.2 


21 


27.7 


22 


25.8 


35 


29.3 


20 


I.I 


28 


0.8 


29 


23.3 


26 


4.6 


22 


0.3 


23 


3.7 


23 


2.4 


23 



I. 



910 



860 

• • 

173 



813 



955 



870 

• • 

812 
022 



405 
805 

915 
630 



050 



638 



380 
338 



943 
596 

• • 

385 

• • 

250 



2. 



890 



360 
196 



642 

769 
071 

720 

544 
685 

035 
860 

386 
952 



800 
470 
685 
965 

440 



310 
780 
825 
520 

100 



385 
565 
996 



879 
622 



305 
278 



386 

018 

513 
850 
420 
886 
186 

130 



3. 



862 



554 
853 



578 



305 



935 



386 
574 



150 



4. 



4T0 

868 

978 
250 
036 



538 
660 
084 

638 

538 

730 
960 

892 

286 



805 

655 
272 



873 



712 
220 



460 
020 



328 
650 
990 
186 

763 
551 

938 
330 
260 

540 

388 

620 

545 
728 
283 
802 
081 



980 



260 
880 
940 



521 



130 



864 



804 
662 



853 



665 
190 



508 



140 



325 

• • 

550 



265 

075 
400 



781 
573 

• • 

301 

• • 

081 

• • 

020 



.Sc 
o o 



10,0 
9.0 
9.0 
9.0 
9.0 



Apparent 
Zenith Dis- 
tance, South. 



8. 


8 


8. 
8. 


9 
9 


9- 


2 


9- 


2 


9- 


2 


9- 


2 


9- 


2 


9- 


2 


9. 


5 


9.5 


9- 


5 


10. 





10. 





10. 





10 





10. 





10 





10. 





10. 





10. 





10. 





10. 





10. 





10. 





10. 





10. 





10. 





10 





8 

8. 

8. 

8. 

8. 


5 
5 
5 
5 

5 


9 


5 


9- 


5 


9" 


5 


9 


5 


9 


5 


10 





ID 





10 





10 






47 12 30.3 
310 18 39.3 
47 44 23.0 
24 13 21.0 
22 38 52.6 



21 32 II. 4 

38 48 57.4 

307 30 53.4 

o 13 43.0 

306 9 12.6 
5 40 43.2 

25 12 51.5 
58 28 26.4 
36 I 31.8 

16 31 19.7 

15 59 51.9 

21 49 35.3 

22 38 52.5 

353 2 21.8 
10 24 3.7 

16 6 23.1 
16 37 51.9 
21 57 46.9 

46 58 8.0 

26 16 36.7 
18 22 54.5 

47 12 28.6 
o 13 42.5 
5 40 41.8 

65 18 55.5 

47 14 4.9 

16 24 4.3 

359 51 35.6 

307 30 54.0 

29 18 0.4 
316 39 12.9 

347 23 13.7 
69 16 24.2 

312 18 7.1 
32 44 57.6 

41 34 29.6 

310 18 39.5 

47 44 20.8 

24 13 199 
47 14 3-6 

ID 24 2.7 
16 36 0.4 

17 7 46.5 



a 

o 

C/3 



For summary of the elements of reduction see page 3. 



344 
347 
303 



249 

215 

258 



343 

• • 

343 

345 

251 
251 

222 



227 



262 

■ • 

258 

« • 

385 

• • 

383 

387 
395 
393 
390 
294 
294 

■ • 

244 



Refraction. 






I 
I 
I 












H- 



+ 



4- 






+ 



II 

0.1 

5.2 

1.4 
24.9 
22.9 



-h 21.2 

+ 43.3 
— I 10.5 



— I 

-f I 

+ 



0.5 
15.6 

5.5 
26.0 

29*9 
40.3 

16. 1 

15.5 
21.6 

23.0 

6.6 

10. 

15.5 

16. 1 

21.8 
57.8 
26.6 
17.9 

59- 1 
0.2 

5.5 

58.5 
58.7 

10. o 



— 0.1 

— I 10.6 



31.3 
52.6 

12.4 

26.6 

1.6 

35.9 

49.6 
6.0 
1.6 
25.2 
59-2 
10. o 

16.2 
16.7 



Apparent N. 
P. Distance. 



No. 



15 
43 



// 



98 19 51.6 
I 23 55.3 
98 51 45.6 
75 20 7.1 
73 45 36.7 



73 38 53.8 
89 56 1.9 

358 36 4.1 

51 20 4.7 

357 14 18.2 
56 47 9-9 

76 19 38.7 
109 36 17.5 

87 6 33.3 

67 37 57.0 
67 6 28.6 

72 56 18. I 

73 45 36.7 
44 8 36.4 

61 30 34.9 

67 12 59.8 
67 44 29.2 

73 4 29.9 
96 5 26.9 

77 23 24.5 
69 29 33.6 

98 19 48.9 
51 20 3.9 
56 47 8.5 
116 27 15.2 
98 21 24.8 
61 30 35.5 

50 57 56.7 

358 36 4.6 

80 24 52.9 

7 44 41.5 
38 29 22.5 

120 25 12.0 

3 23 26.7 

83 51 54-7 

92 41 40.4 
I 23 54.7 
98 51 43.6 
75 20 6.3 
98 21 24.0 
61 30 33.9 

67 42 37.8 

68 14 24.4 



Pa 

e o 

^ u 

it V 

.52 S 

ISO 



II 

0.2 
0.6 
1.6 
1.4 
0.3 



— 10.3 

- 1.4 
0.0 

-h 1.6 

— 1.0 
+ 0.4 
-\- 0.6 

- 0.5 

- 2.4 

- 2.4 

— 10.7 

— O.I 

+ 1.4 

- 0.4 

- 2.4 

- 2.5 

- 10.8 
+ 0.9 
+ 0.3 

- 0.3 

- 2.5 
-I- 1.6 

0.0 

- 0.8 

- 1.6 
-h 0.2 

-h 0.9 
-h 0.1 

0.0 

- 1.7 

- 3.0 

- 2.5 

- 2.1 

- 0.6 



0.8 
2.2 
0.9 
1.8 
1.4 

2.5 
2.5 



MOON'S— 



Parallax. 



// 



46 II. I 
36 15.7 



Semi-diam. 



// 



+ 14 50.3 
+ 14 59-5 



62 



OB8EBVATION8 WITH THE TRANSIT CIRCLE. 



DATE- -I 

c 



}^'.\ It 



12 



13 



14 



I 

2 

4 



9 
10 

II 
12 

13 
14 

15 
16 

17 
iS 

19 
20 

21 
22 

23 

24 

25 

26 

27 
28 

«9 
30 

31 

32 

33 
34 

35 
36 

37 

3» 

39 
40 

4' 

42 
43 
44 

45 

46 

47 
4H 

49 

5^' 



/ 
t 



I 



r 
S 

a 
a 

ti 
a 



OBJECT. 



Polaris. S. P. 
C Virffinis 
u Herculis . 
^ Ophiuchi 
a Ophiuchi. <R.) 

w Draconis 

: Draconis, (R.) 

if Serpentis . 

I Aquilne 

; Pegasi . 

i Ceti . . 

Moon 11 

Polaris . 
Tf Piscium 



Polaris . 

Oti 

Piscium 

Moon II, N. 

Tauri 

Tauri 

Sun I, N. . 
Sun II, S. . 
Polaris, S. P. 
Saturn I, S. 
Saturn II, N. 

Ophiuchi . 
Camelopard., ! 
Ophiuchi . 
Moon II, N. 
L'rs» Min., S. 



Sun I, N. 

Sun II, S. 
a Ilyflra; . 
)• Leon is . 
,<* Scorpii . 

A Ophiuchi 
r ilcrculis 
a Si'orpii . 
15 Draconis 
K Ophiuchi 









Ilcrculis 
I'rsn; Minoris 
Dfaconis . 
Sii^ittarii . 
Sa^ittarii . 

IJrsx Minoris 
Polaris . 
Moon II, N. 



P. 



j( Tauri 



SECONDS OF TRANSITS OVER WIRES. 




CORRECTIONS. 



T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 

: "^ 

T. 
T 

It: 

T. 

T. 
T 
T. 
N. 

N. 
N. 

N. 
N. 

: N. 
N. 
N. 

N. 

■ N. 
N. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
. E. 
I E. 

E. 

E. 

Ie. 

I E. 
E. 
E. 
E. 

E. 
T. 
T. 
T. 



3 
3 
3 

3 
3 



12. 1 

48.5:5X-i"52 
28.8,31.633 
59.6 2.2 3 



134-9 
37.6 
•40.0 



41.746 

4i.7'44 
42.644 



|i2.6ii5.2ji6 
36.9 39.5'4I 



9. 911 
3.7^ 5 

38.039 

I 

44 

38.840 



3 


7.2 


3 


i.o 


• 


■ • 

35-4 



3.2 

3 



3.2 
4 
3 

2 
2 

3 
3 
3 

4 

4 
2.3 



I11.314.d15 
29.5,31.135 

4.3 1'^ 8 



52.2 59.0 o 
12.415.1 16 
. . I 

33.I35.6'37 
. 42 

5.8I 8.4 9 
48.842.238 

o.8| 3.4I 4 
41.444.oi45 

. . |44 
36.7138 



134- 1 



I 0.1 3 
116.3,19 

I . . I . 

.51.7,54 

,58.1! I 

I 



o! 4 

,2'20 



5:56 

,o| 2 



33.841.4 



'54.i!57 
30-933 



42 



I 



7-59 

8.35 



7.1114.2 



.38.3'40.942 



18 



38.1 
.31.5134.5 



•54. 657.959 

I . . . . 36 

43.145 
36 

9 

30 

• 

25 
54 



4.8 



7.6! 



20.823.4 
49-8:52.5 



036 
i;i8 

7 59 
440 
7 10 



3 
54 

2'50 

7J22 
I [47 



18 
^ II 
o|2I 
6:46 

026 



46 
46 
21 

37 
15 



9:23 

038 

3I . 
9^45 



916 

423 
911 

7,52 

636 

2144 

i 

7" 

827 



oi 
6 



2 
9 



848 
8 
42 

35 

48 

6 

49 
55 
43 
15 



31 
2 o 



V. 



VI. 



12.050 
20.322 



I.I 
42.2 



3 
44 
14 

14 
o 

3!52.4'54 



012. 1 



9.0 
oi57.i 



25.1|27 

49.751 



20.222 
13:615 
47. o| 9 
48.2150 



050.01II 



48.7 
48.8 
23.8 

39.5 
17.2 

9.6 

25.5 
13.0 

• • 

47.2 

18. 1 
18.3 



III3.3 



54.1 

28.8 

46.5 

13.5 
29.6 

53.7 
4.8 

II. 2 



51.0 

"5 

44.4 

41. 

50.7 



50 
50 
25 
41 
19 

II 

27 
50 

• 

49 

20 

13 
15 
56 
21 

48 

15 
31 
56 

7 
13 

53 

14 

46 

0I46 



9.4 
6.5 

58.7 
45.6 
17.9 

38.0 

• • 

33.7 
3.1 



52 

II 

21 

I 

48 
20 

10 

• 

35 
5 



VII 



023 
224 

i| 9 
5'5i 
320 

631 
4)10 

4I o 
i;33 

8|57 

428 
6I21 

Oj3i 
256 



37 



52 

57 
9|32 

7U3 
426 

818 

34 
27 

54 

351 



336 

3.58 

4'2I 

2I 2 
813 
454 



22 

38 
58 
13 
»9 



059 
23 



53 
3 

58 

19 
36 
II 

55 
26 

45 

39 
42 
12 



VIII 



IX. I Mean wire.l Inst. 



28.3 



29.8 



0,13. 7| 

7:55.6' 



_ II 

0J52 
322.0124.6 



35.742.9, 
12.716.8l 



1.9 
34.8 
59.5 



4 5 

37.2 
2.2 



30.433.1 
23.326.1 



58.2 



58.8 

33.8 
48.1 
027.5 



5 
4 

o| 

5 



0.8 



1.5 
36.3 
49.7 
30.2 



20.3.22.7 
36.0(33.7 

• • 

56.5 



58.8 



5 28.030.6 

1154.5148.1 



23.2 
4.1 

■ • 

56.1 

23.9 

39-9 
59.1 
15.2 
21.4 

0.7 
25.8 

55.4 
8.2 

0.4 
21. 1 

• » 

14. 1 
57.01 
28.3 



27.0 

43.9 
13.7 



25. 81 

6.8: 

5*8 .6 

26.9 
42.21 
0.1 
18.0 
24.1 

3.2 
29.6 

58.1 

15. 1 
3.1 

24.3 

• ■ 

18.2 

59.9 
31.0 



14.0 
46.7 
16.4 



Clock 
appar*nt. 



m. s. s. 

II ii.88| + 16.95 

28 20.19-1- 0.47 
9 i.oS -\- 0.37 

18 42.20.4- 0.65 

29 12.09!+ 0.15 

38 8.91 — 0.56 

53 57.19- 0.45 

14 52.30'-*- 0.49 

28 24.97 -♦- 0.53 

6 49.56 -^ 0.37 



s. 

* • 

■21.36 
21.57 
21.57 



21.64 

21.59 
21.84 



37 20.16 

57 13. 53)+ 0.47 
II 45.52! — 16.00! 

24 48.10-+- 0.37 



II 49.32 
17 48.62 



-H 0.61—21.90 
21.87 



17.001 
0.59 
0.41 
56 23.83-1- 0.47 

12 39.59+ 0-39 
21 17.24 -h 0.37 

32 9.58 -»- 0.34 



22.65 
22.59 

• • 

22.59 
22.61 



34 25.54 



II 13. 501 + 18.02 



50 45.88 



- 0.34 



-h 0.66 



50 47.18 -+- 0.66 



30 18.19+ 0.60—23.03 
41 18.34'+ 1.25 
29 13.29+ 0.41 
37 54. lO) 
51 29.14 

55 46.40 

35 13.48 
37 29.48 



-23.04 
+ 0.36! . . 

+ 1.63! . . 
+ 0.39I — 23.25 



f 0.28 
+ 0.28 
21 29.15,+ 0.46 
13 4.83!+ 0.28 
58 11.171+ 0.54 

7 50.99+ 0.43 



16 II. 71 
21 44-50 



+ 0.05 
+ 0.58 



98 41.15 — 0.47 



51 50.67 



57 
o 



9-45 
6.17 



+ 0.36 

+ 0.19 
- 2.79 



23.60 
23.63 
23.56 

23.57 

ft • 

23.49 

• ft 

23.69 



53 58.5o|— o.oi 
57 45.69+ 0.61 -23.71 
6 17.90 + 0.54 —23.63 



15 37.62 
II 52.57 
32 33.69 



— 5.18 

— 15.62 
+ 0.42 



40 3.09+ 0.33 



—24.29 



Clock 
adopted 



s. 
—21.42 

-21.43 
-21.55 

-21,55 

—21.56 

1-21.57 
-21.58 
-21.59 

-21.59 
I— 21.78 

-21.79 
—21.81 
—21.81 
—21.82 

—22.61 
—22.62 

— 22.62 
—22.56 
—22.63 

— 22.64 

— 22.73 
-22.73 
—22.90 
—22.96 

— 22.96 

I 

• — 23.00 

— 23.00 

— 23.03 

— 23.18 
-23.18 
-23.19 

-23.35 

-23.35 
-23.42 

-23.44 
-23.64 

-23.65 

— 23.66 

— 23.66 
—23.66 

— 23.67 

—23.68 
-23.68 
-23.71 
-23.71 
—23.72 

—23.72 
—24.18 
-24.28 
-24.-28 



Apparent R. 
Ascension. 



h. 



o 
o 
I 
I 

I 
I 
I 
I 

4 
4 

7 

7 
I 

15 
15 

16 
16 

17 

2 

14 

2 



6 
6 
6 
6 
6 

6 
6 

7 

7 
8 



3 
3 



c B 



^ t! 
= 5 
S w 



m. 
II 



s. 
7.41 



13 27 59.23 — O rj; 

17 8 39.90 -t- 0.02 

17 18 21.30 + o.oc 

17 29 50.f>S + 0.01 



17 37 

17 53 

18 14 

18 28 
o 6 



36 
56 
II 

24 

II 
17 
24 
46 
12 
20 

31 
34 
II 

50 
50 

29 

41 

28 

37 
51 
55 



46 

35 

31 

4 
28 

58 
52 

5 

26 

9 
26 

26 

I 

17 
54 

47 

3 
8 

23 
24 

55 
56 
50 
31 
7 
23 



7 34 50 
7 37 6 
9 21 6 
o 12 41 
5 57 48 



7 27 
15 48 
21 21 
28 17 
51 27 



56 
59 
53 
59 
5 



18 15 
I II 



32 

39 



45 
39 
34 
22 

54 

8 
12 

9 
39 



s. 

2.0^ 



78' 
16 

20 + 0.04 



0.02 
0.01 



00 



o.n 



15 + 0.04 

r 

98+ 0.14 
191—62.6^ 

83 + 1.55 

65 + 0.10 

I 

71 + 2.^ 

5<> + 0.03 

60+ 0.02 
74' -63, 94 

35 — 0.02 

97 — o 03 



19 
»5 

62 + 

581 
86 



1-3: 



79j— 0.02 
59— 0.06 
67;+ 0.01 

28'— 65.tKj 
6<:>|^- o.ii 
60'+ o.o5 



41 
41 

IQ + O. It 
67J+ 0.21 
07 — 0.02 



77'— o.oci 
101-1- 0.04 
42 — o. 15 



00 



o.*;? 



361+ O.Of 



96,+ O.IO 
70J— o.tjo 
78'— 0.32 
6g|+ 0.07 
72— o.ii 



72- 1.75 

77 + 4-05 
83I-67 5^ 
141+ 0.02 



29. Bisections at Ci, C3, and Cs. 

30. Bisections at set C. 
34. Set E in R. A. 

37. Wire A used. 

40. Bisections at sets B and D. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



63 



No. 



• 




MICROSCOPE MICROMS. 


TELESCOPE MICROMETER. 


V 


Circle 
Division. 






















g 




1 
















3 

2 




I. 


11. 


III. 


IV. 

II 


Rev. 


I. 


2. 


3. 


4. 


5. 




§ 


r. // 


II 


II 












I 


307 28 


4.6 


6.3 


0.0 


0.9 


27 


686 


701 


705 


742 


586 


2 


38 44 


8.4 


8.5 


0.6 


1-7 


22 


• • 


784 


» « 


721 


ft • 


3 , 


24 18 


9-2 


9.3 


2.6 

• 


3.5 


29 


• • 


329 


• • 


231 


• ft 


4 


62 52 


4.8 


7.4 


0.5 


1.3 


28 


• • 


073 


• • 


930 


• ft 


5 


153 44 


4-3 


5-4 


0.0 


28.8 


29 


450 


319 


• • 


290 


220 


6 


330 2 


5.1 


5.1 


1.4 


1.6 


28 


• • 


280 


160 


068 


ft ft 


7 1 


192 34 


9 29.6 


3.1 


27.4 


23.5 


28 


603 


722 


• ■ 


490 


380 


8 


41 44 


7-5 


8.5 


2.3 


2.5 


21 


• • 


384 


• • 


292 


■ ft 





47 10 


7.4 


8.8 


1.8 


2.6 


29 


• • 


270 


• • 


186 


ft • 


10 


24 22 


9 28.0 


28.4 


21.5 


20.4 


23 


344 


• • 


■ • 


ft • 


202 


II 


57 32 


1.4 


2.7 


25.5 


25.6 


29 


• • 


154 


• • 


058 


ft • 


12 


37 34 


• • 


• • 


• • 


• • 


• 


• • 


• • 


• • 


ft ft 


ft ft 


13 


310 16 


5.4 


6.6 


0.6 


1.7 


28 


658 


632 


636 


636 


590 


M 


24 10 


5.9 


3.8 


29.0 


28.8 


26 


• • 


172 


• • 


073 


ft ft 


15 


310 16 


6.1 


6.5 


2.0 


1.5 


28 


• • 


568 


594 


633 


• ft 


i6 


47 42 


10 0.6 


1.8 


24.3 


24.3 


30 


• a 


050 


• ■ 


050 


ft ft 


17 


24 10 


2.7 


2.6 


26.1 


25.5 


26 


• • 


312 


« • 


1.38 


ft ft 


^^, 


33 4 


10 8.6 


8.5 


0.9 


0.7 


26 


540 


679 


878 


105 


215 


19 


23 32 


8.3 


7.6 


0.9 


0.6 


27 


622 


576 


• • 


482 


445 


20 


19 56 


7.2 


7-3 


0.6 


0.5 


22 


• • 
■ 


• • 


• • 


086 


• ft 


21 ' 


16 50 


8.0 


8.5 


1.8 


29.7 


25 


585 


502 


a • 


« ft 


• • 


22 


17 22 


9.2 


10.6 


3.4 


1.2 


27 


• • 


« • 


• • 


340 


316 


23 , 


307 28 


5.6 


6.1 


0.1 


I.I 


27 


739 


708 


715 


729 


660 


24 


56 54 


6.9 


7.1 


29.5 


28.5 


28 


222 


• • 


• • 


• • 


081 


25 


56 54 


6.9 


7.1 


29- 5 


28.5 


29 


• • 


355 


« • 


194 


• • 


26 


49 6 


8.2 


8.3 


1.3 


29.6 


22 


052 


080 


• • 


965 


932 


27 


285 ! 


6.5 


7.7 


3.3 


1.6 


24 


975 


062 


• • 


902 


885 


26 


26 10 


13.2 


12.9 


5-4 


5.0 


25 


125 


066 


• • 


958 


991 


29 


28 58 


5.5 


5.5 


27.8 


26.6 


22 


• • 


450 


530 


580 


ft ft 


30 ' 


293 34 


4.4 


4.5 


28.0 


29.1 


24 


530 


470 


535 


565 


580 


31 


35 16 


6.7 

• 


7.4 


1.3 


28.5 


28 


375 


305 


• • 


180 


160 


32 


17 


II. 6 


9.8 


1.4 


3.7 


28 


672 


700 


• ■ 


• • 


ft ft 


33 


17 32 


II. 7 


10.5 


2.4 


4.1 


30 


• • 


• • 


• • 


312 


400 


34 


46 54 


7.0 


6.4 


28.2 


28.7 


22 


■ ■ 


• • 


• • 


ft ft 


860 


35 


18 20 


9.7 


9.2 


1.2 


1.2 


27 


650 


603 


• • 


480 


420 


361 


58 14 


5.0 


7.0 


28.8 


29.0 


20 


732 


832 


ft ft 


775 


685 


37 


42 12 


7.7 


8.8 


2.3 


2.0 


41 


• • 


t • 


ft • 


710 


735 


3* 


352 12 


"3 


10. 


3.5 


4.5 


24 


290 


245 


• • 


040 


010 


39 


64 56 


5.0 


5.7 


0.2 


0.0 


23 


920 


810 


• • 


700 


585 


40 


329 48 


10 8.5 


8.5 


2.4 


3.4 


28 


• • 


550 


460 


540 


ft ft 


41 


29 14 


5.0 


5.7 


29.0 

■ 


28.5 


23 


• • 


340 


• • 


260 


ft ft 


42 


5 4 


7.0 


5.5 


0.0 


0.2 


24 


• • 


790 


• • 


710 


ft ft 


43 


316 36 


10 10.3 


10.7 


5.3 


5.8 


26 


098 


228 


120 


210 


iqo 


44 


347 20 


6.7 


7.8 


1.5 


1-3 


26 


• • 


560 


• ■ 


290 


ft ft 


45 


69 12 


4.7 


5.7 


28.8 


29.5 


21 


420 


620 


• • 


515 


460 


46 


59 54 


5.8 


6.2 


28.8 


29.0 


26 


• • 


070 


• • 


770 


ft ft 


47 

4*^ 


312 14 


1.5 


1.2 


26.0 


25.8 


23 


335 


290 


340 


320 


350 


49; 


25 18 


8.6 


10. 


1.8 


2.4 


27 


760 


809 


878 


943 


100 


50, 


15 8 


8.0 


8.7 


0.9 


1.5 


14 


• ■ 


031 


• « 


888 


ft ft 



1^' 

NO 



10 
10 
10 
10 
10 

10 
10 
10 
10 
10 

10 
10 

a 

10 

9 
9 
9 
9 
9 
9 

9 
9 
9 
9 
9 

9 
9 
9 
9 
9 
9 

9 
9 
9 
9 



9 
9 
9 
9 



9 
9 
9 
9 
9 

9 

9 
9 



3 
3 
4 
4 
4 

4 
4 
4 
4 

2 

2 
2 



8 
8 
8 

5 
5 
5 

3 
3 
3 
3 
3 

3 
3 
3 

5 
5 
5 

5 
5 
5 
5 
9 

9 
9 
9 
9 
9 

9 
9 
9 
9 

9 1 



Apparent 
Zenith Dis- 
tance, South. 



Barom. 



in. 



External 
Therm. 



Attached 
Therm. 



// 



307 30 54.4 
38 48 8.2 
24 20 27.1 
62 52* 49.1 

153 46 30. 4I 

330 4 47.5 
192 36 45.41 

41 48 29.4' 
47 12 28.8 
24 26 10.5 

57 36 36.8 

ft ft ft a 

310 18 39.6 
24 13 19-5 

310 18 39.0 

47 44 23.0 

24 13 20.2 

33 7 4.4 

23 34 54.9 
20 o 17,7 

16 53 26.2 

17 24 54.9 
307 30 52.8 

56 56 46.2 
56 56 29.1 

49 10 18.8 

285 3 32.3 
26 13 28.1 
29 2 14.4 

293 37 43-4 
35 18 44.5 

17 2 36.2 

17 34 7.7 
46 58 6.6 

18 22 53. 9| 

58 18 40.4; 

42 13 49.9 

352 15 44-5i 

64 59 54.31 
329 50 38. 81 

29,18 2.2 

5 7 39.1 
316 39 12.4 

347 23 12.5 
69 16 29.2 

59 57 21.6 

312 18 5.3 

25 20 48.1 
15 II 49.3 



For summary of the elements of reduction see page 3. 



o 



233 
245 
338 
342 



Refraction. 



:— I 

+ 
-h I 



349 
350 
386 

382 
373 

a ft 

372 



372 
372 
361 
303 



1 + 
-1- 

4- 
-4- 



II 

10.3 

43.5 

25.1 
47.6 

27.3 

31.9 
12.4 

49-3 
59.8 
25.4 



-h I 27.8 

- I 5-7 
-H 25.1 



'4- 



250 
215 

a a 

282 
291 



I 
I 



5.7 

1.3 

25.1 

36.3 

239 
20.0 



-h 16.5 

H- 17.0 

— I 10. o 

+ I 23.7 

-h I 23.7 



-i- I 3-3 

— 3 20.2 

311 4- 27.1 

-h 30.8 

- 2 5.9 

4- 39-3 



350 



207 



271 



4- 
4- 
4- 



— I 0.4 



-f 
+ 



25.8 
14.8 



No. 



18 
29 

49 



4- 


I 


- / 
27 


8 


4- 




49 





— 




7 


6 


4- 


I 


56. 


2 


— 




31. 


7 


4- 




30. 


8 


4- 




4 


9 


— 




51 


6 


— 




12 


3 


4- 


2 


23. 


5 


4- 


I 


34. 


7 



Apparent N. 
P. Distance. 



(A . 

g.2 

f— • ** 

u XL 
;- O 



// 



16.5 

17.0 ; 
57.0 I 



358 36 5.3 



// 



4- 0.7 



89 55 12.9 j-l- 0.3 

75 26 13.4 ,-h 0.8 

"3 58 57.9 |4- 0.1 

87 21 18. 1 I4- i<i 



21 10 36.8 
38 29 23.4 

92 55 39-9 
96 19 49.8 

75 32 57.1 
108 44 25.8 

I 23 55.1 
75 ?o 5.8 

I 23 54.5 

98 51 45-5 

75 20 6.8 
84 14 1.9 

74 41 40.1 
71 6 58.9 

68 o 3.9 

68 31 33.1 

358 36 4.0 

108 4 31. I 

108 4 14.0 

100 17 43.3 

336 6 33.3 

77 20 16.4 

80 9 6.4 

344 46 58.7 

86 25 45.0 

68 9 13.9 

68 40 45.9 
98 5 24.8 

69 29 32.8 

109 26 29.4 

93 21 .0.1 
43 21 58.1 

116 8 11.7 
20 56 28.3 
80 24 54.0 

56 14 5.2 

7 45 42.0 

38 29 21.4 

120 25 13.9 

III 5 17.5 
3 23 26.1 

76 27 35.1 
66 18 25.3 



~ 1.2 

- 1.8 
4- 0.3 

- 1.4 
4- 0.7 

- 1.9 

- 0.3 

- 1-3 

- 0.9 
4- 0.2 

- 0.4 

- 2.3 

- 1.6 

- 2.5 

- 2.6 

- 0.7 

- 0.8 

- 0.8 

- I.I 

- 0.8 

- 0.3 

- I.O 

-- 1.6 

- 2.5 

- 2.6 

- 0.3 

- 1.2 
4- 0.7 

- 2.0 

- 0.6 

4- 2.9 

4- 0.4 

4- 1.7 

4- 1.0 

- 0.1 

- 30 

- 0.8 
4- 0.6 

- 1.4 

- 07 



MOONS— 



Parallax. 



ti 



30 33 -o 
27 32.4 
24 40.5 



Semi-diam. 



»» 



4- 15 21.6 
4- 15 36.0 
4- 15 51.7 



OBBBSTATIONS WITH TUB TBAMSTT CIRCLE. 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



■ ; Pursfi 
) Eridani 



Sun I, S. . . 
Sun II. N. . . 
Polaris. S. P. , 
Polarii. S. P. . 

Salurn I. S. . 
Sdlurn II, N. , 

V Dracunis . 

.5 Draoni^ . . 

V Ik-rcuiii; . . 
K Ophiudii, (K.) 



33 /• 0[)liiin-1ii , 



*.(R.). 



45 .t Ophiiirlii 



'■ I. llJlII.IlV. V. -v 



I 



I. ,VII..VIII,IX. Mca 



_ I c,„ 



j""l'' 



4 54 1' 
3 3».0 



•> 15.04 + 
I 41.33 + 



724.531.033,235.4 



I I 



). 94^.953.5,56. 
<t.0| 5.5|"-5|'<i- 
3.I.Jq.746.S53. 
6.8.5*.. 215'). 5| »■ 



>'4-3i5 1 

5.4ii.7|i3-a 
6-<'i53-4 55.o 

5. 6.5! 0.2 
933.^38.0 
IS9.8| . . 



S43-546-3I 41 33-1 



5-64-* 

3.17 + 

8 44-34 -f 



'! 'I 



8.<)3i-5'33-c 
4..'.6.J,. 



I i 



i.i,34-i3<>.l,33-344-5;4*>-";48.7 
!,-|i9.8 22.<v34.3 3i,4 J3.o36■ 
l I 1 1 I I 

619. 2130. 833. 
244. ');t6. 0,49. 
- 40.0137.5.53. 

3.l4').-l;50-')53. 



433.936.03S 
5 ■ • I ■ - I - 
I.ol3g.O|iS 



I 34.",37-3,3')-347-a4<).<f 5»-4 0-3 



3 5a.955-5]57-a! 3- 

3 33."''35.8'37.4|44. 

■ ' I ' 

3 3.S| ''Ol 7-')|i4- 

- .3')-2 46.5!5n.7 7. 

3 3i.4'34-3i36-"l4J. 

3 41. 145-447. 757. 7 



>,343-"44.7|50-' 

■ 735-537. 3I44-' 
,010.5 II. 418. 
.''I37.J3').'I46-' 



[> S7-"5 + 

5 I3.lf> + 
2 4'>-4S- 
B 43-<'f- 



5 


s. 


h. m 


, ^ 


24.36 


-24-39 


.3 45 


51.0" - 0.0 


14.18 


-34.19 


3 5> 


53,444 0.0: 


14.30 


-24.30 


4 13 


17-44 + f-'l 


14.31 


-14.30 


4 20 


55-08 -f 0.,.. 




-24- 44 


7 39 


53-30 




-14.44 




9.o.> 


*t-5'> 


"»4-54 




41.4,- T "-M 




-23-62 


17 S 


39.B7-r •>.; 


33.79 


-33. 83 




31,23 - ')") 




-23-83 


7 27 29,43+ I. 




-23-84 


17 37 4''-42 - : 






'7 44 






-23-fi5 




»3-H5 


-33,86 




54-B.- 0.... 




-23- "7 


18 >5 


11-30+ 1,0 




-35.35 


4 30 


29.03 -7(.. I. 


25,3!( 




5 8 




25.39 


-35.39 


5 «7 


57,01 - 0,1. 




-25.47 


7 43 


55 -?5 




-25-47 


7 4'. 






-25,69 








-is.f^ 




io,<«, + 0,5, 


35.09 


-35,79 

-25-7') 
-35-7<» 


IS 44 

15 5" 
15 5" 


15,9.,- O.Il 

3,2,5 , . 






15 57 4S-l^+ O.ii 




— 25. S3 




14,20- o.r- 






16 2S 





:l:: 



8,424.7 

8,6 3<>-" 
7.6,54.5 



22.835.3 

33,74«.S 



53,354-3 "-5 





o.io' 




-25-85 




IS 4^-34 + 


0,87 


-25,94 


-25.85 


17 18 21.3.. 


2') 16.29 + 


0,22' 




-25.86 


17 3S 50.65 


38 13.26- 






-35.87 


17 37 A<>.<^) 






-2I-S7 


-25.87 


17 41 ">-7'l 


54 0-91- 






-25. 88 


'7 53 35-0^ 


6 19,89 + 


o,B4' 


-25.91 




IS 5 54- S4 


(5 43-W'- 






-35.92 




48 23.01 -(- 


0.37 




-,6.o» 


7 47 57-30 


50 3«-'>h + 


0-37I 




-26.08 


7 50 '2-97 






-35.67 


-25.40 


15 44 •(■-35 


50 10.33 + 


0.59I 




-25-40 


15 49 55-52 


50 11.76 + 


0.59 




-25.40 


15 49 56-95 


7 52.70 + 


0.51 


-25-3S 


-25.41 


16 7 27. Ro 


16 13-54 + 


0.15 




-25.42 


16 15 4S.27 




o.6^ 


-25-31 


-25-42 




30 20,53 + 


0.55 


-25-34 


-35-43 


16 29 S5-64 


3S 49.54 + 


0.24 




-25-44 


16 38 24. W 


51 52,27 + 


0-44- 


-25-39 


-25.44 


16 51 27.27 



t(). Countinit clock probably Iwi 
35. Bisections ai sets B and D. 
1.44. Wire Bused. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



65 





1 MI 

Circle ' 

Division. 1 

1 

1 


( ROSCOPE 
I. II. 

1 


MICROMS. 


TELESC< 

Rev. I. 

1 


3PE MICROMETE 


R. 

5. 


^ Zenith Point 
Correction. 


1 

Apparent 
Zenith Dis- 
tance, South. 

t 1 1 


Is 'i 

1 


iefracti 


on. 


'CO ' 

Apparent N. i2 ^ 


'A 


III. IV. 

1 


1 

2. 


3. 4. 1 


P. Distance. g S 

.£ 

5?u ■ 




■-. ' 1 '• 


/' " 




1 


m 


1 
» " " 


I 

o 

4 


7 20 
52 42 
23 32 
19 56 


6.6 7.7 
6.6 7.9 
9.1 9.1 

9.9 10.5 1 

1 


0.0 29.5 

29.0 1 0.3 

i.o 1.4 

2.9 1 2.7 


22 

25 

27 
21 


• • 

• • 

1 
• • 


089 
282 

415 
840 


. . 000 
146 1 
286 

. . 1 762 

1 1 


• 

• • 

• • 


9.7' 

9.7 1 

9.7 
9.7 

1 


7 24 19.9 
52 45 31.2 
23 34 57.0 
20 20.5 


• • !-♦- 7.1 
260 '-h I 1 1. 4 

• . -1- 23.7 
249 + 19.7 


58 30 48.2 — 0.2 

103 53 3.8—2.2 

74 41 41.9 - 0.3 

71 7 1.4 4- 1.0 

1 


<; 
ii 

•» 


17 8 1 
17 40 


8.8 9.0 

12. I II. 6 


I.I 1.0 
3.3 ' 3.3 


22 
24 


650 

• • 


1 
650 1 . . . . 

. . 1 . . 193 


• • 

208 


9.6 , 

9.0 


17 12. 10.3 
17 43 41.5 


. . -H 16.5 , 
180 -f- 17. 1 


68 18 48.0 - 2.5 ' 
68 50 19.8 — 2.6 1 


.s 


24 18 
62 52 


12.5 12.9 

5.3 7-8 

1 


4.6 1 3.5 
29.1 28.0 


29 
27 


• • 


140 • • 033 
923 . . 741 


• • 

• • 


0.6 
9.6' 


24 20 27. I 
62 54 51.9 


243 4- 24.6 
. . 4- I 45.4 


75 27 12.9 4- 0.9, 
114 2 58.5 4 o.6» 


II 

12 

^^ 
If 

Tb 

17 

18 ' 


346 26 
330 2 
213 14 
192 34 

59 54 


1 
10.6 II. 7 

8.0 9.0 1 
4.0 8.0 

3-6 7.9 

6.5 8.8 ' 


1 
3.5 
i.8 1 

05 
0.7 
0.0 

1 


2.5 

0.1 

27.4 

26.1 

29.0 


24 
28 

20 

28 

25 


1 

1 

• ■ 

1 . . 
310 

■ • 

1 


810 1 . . 
270 1 . . 
023 1 274 

143 ' . . 
798 . . 

1 ; 


750 
130 
no 
150 1 

750 1 


• ■ 

• • 

068 

• • 


9.6 , 

9.6 

9.6 

9.6 

9.6 


346 29 34.6 

330 4 45.1 

.213 18 50.6 

192 36 46.7 

59 57 22.4 


. . — 13.0 
. . — 31.2 
. . 4- 35.6 
. . -f 12. 1 

247 + I 35.5 

1 


37 35 42.8 -f 0.2 
21 10 35.1 — 1.9 ■ 
17 46 55.0 — 1.8 

38 29 22.4 — 1.7 
III 5 19. 1 -»- ^.i 

i 

1 


47 10 > 
10 20 

1 


9.7 10.7 1 
9.6 10. 1 


1 
1.6 1 1.2 

2.1 1.8 


22 

23 


• • 

120 


• • 

032 


974 

• • 


881 


840 
898 


1 

9.3 
9-3 1 


47 14 3.2 
10 24 2.8 


200 -h 57.9 
. . -|- 10. 

I 1 


98 21 22.3 — 2.5 
61 30 34.0 — 1.2 


^9 

20 
21 

'»'3 


17 50 
17 18 1 
307 28 


9-5 9-3 
13.2 12.5 

71 9-3 


1.5 1.5 
4.5 4.2 
I.I 1.2 


25 
22 

27 


1 044 

• • 

500 


952 

• • 

503 


• • 

• » 

1 617 


• • 

630 

• • 


598 

• • 


9-3 1 

9-3 

9-3 


17 53 33-6 

17 22 4.4 

307 30 52.1 


. . + 17.3 
. . -h 16.8 

184 - I 9.3 


69 12. 1 — 2.6 
68 28 42.4 — 2.6 . 

358 36 4.0 — 1.0 

1 


23 


33 58 


9.5 9.0 


0.6 28.9 


29 


962 


930 . . 


815 


745 


9.3 


34 18.7 


250 i-h 36.6 


85 7 16.5 4 1.3 


24 
2f 

2i> 

27 

2S 


56 52 
56.52 
5^ 14 , 
37 2 ' 
329 4S 


9.5 9-7 
9-5 9-7 
9.9 10.7 
7.2 7.5 
7.4 7.4 


1.5 ' 0.3 
1.5 0.3 
2.0 0.5 
1.2 1 28.1 
1.2 ' 28.9 


21 
22 
20 

27 

28 


652 

• • 

578 

; 798 


848 
578 
735 
751 




• • 
760 

489 
637 

670 


665 

• • 

422 

■ • 

725 


9.3 
9.3 
9.3 
9.3 
9-3 


56 56 23.2 
56 56 5.8 
58 18 40.1 

337 4 53.6 
329 50 36.8 


. . -H I 23.1 
. . 4- I 23.1 
. . ,+ I 27.6 1 
256 — 23.0 

. . - 31.5 


108 4 7.5 — 0.8 ; 

108 3 50.1 — 0.8 

109 26 28.9 4-0.2 
28 10 51.8 -1- 0.3 
20 56 26 . 5 — 1 . j 


2') 
30 

31 

33 


359 38 
150 40 

5 6; 

155 3^> 
62 52 1 


II. 2 1O.2 

8.0 8.6 

10. 1 10. 1 

7.5 7.7 
9.7 10.9 


3.^ ! 1.5 
0.9 27.0 

2,6 0.6 

0.3 . 27.0 

1.9 1 0.9 

1 


27 
31 
32 

25 
27 

1 
1 


1 570 

' 18S 
1 616 

i no 

752 


525 . . 
. . 100 

520 i . . 
049 . . 

715 1 . . 


417 
060 
422 
990 
612 


400 
031 
400 

865 

581 


9.3 
9.3 
9.3 
9-3 
9.3 


359 40 53.6 
150 42 0.5 

5 7 37.4 

155 39 34.5 

64 54 50.7 


. . - 0.3 
. . - 30.5 
. . ,- 4.9 
260* — 24.6 

. . + I 45.9 

1 


50 47 14.5 4- 0.8 
80 24 51.2 — 0.9 

66 14 3.5 — 0.3 
75 27 II. 5 - 0.3 

114 2 57.8 - 0.1 , 

1 


34 

35 

.1/ 

3^ 
3") 


153 44 
330 2 

11 2 

347 20 

50 54 . 

312 14 1 


10. 10.7 
8.5 8.^ 
9.4 9.7 

11. 1 10.7 
8.1 9.0 
9.4 9.6 


3.1 
2.3 
3.0 

3.8 

! 3.3 


29.9 
0.1 

0.3 

2.4 
29.1 

1.6 


29 
28 
26 
26 

25 
1 22 


015 

206 

• • 

' 846 

858 


012 1 . . 
261 ' . . 
250 179 
185 . . 

755 i . . 

868 862 


914 
198 

075 

039 
962 

858 


829 
241 

• ■ 

085 
960 
860 


9-3 

9.3 
9-3 
9-3 
9.3 


153 46 31-3 

330 4 43.5 

II 5 14.3 
347 23 13.9 

59 57 19.8 
312 18 4.4 


. . - 26.8 

. . - 31.3 
270 4- 10.6 

. . — 12.2 

. . 4- I 34.1 
292 — I O.I 

1 


77 20 16.7 -h 0. 5 
21 10 33.4 - 3.31 
62 II 46.1 — 0.8, 
38 29 22.9 — 0.9! 
Ill 5 15. I — 1.9, 
3 23 25.5 - 1.3 


4«J 
41 
42 

43 

4< 


17 28 

18 

33 58 
5^' 54 
5^> 54 1 


II. 10. 1 
II. 9.5 

8.7 7.8 
3-8 5.2 

3.8 5.2 


3.1 

2.5 
1.0 

27.2 

27.2 


3.5 

4.3 

28.8 

23.7 
23.7 


21 

23 
20 
20 
21 


1 
950 

! . . 

> • 

1 

• • 


010 1 . . 

082 ! ! '. 
640 ! . . 

• • • • 
1 


• • 

355 
072 

• • 

795 


• • 

298 

• ■ 

• • 

1 . . 
1 


9.6 
9.6 

' lO.I 

10. 1 
10. 1 


17 32 18.6 

' 18 3 55.6 
34 20.4 
56 56 17.2 
56 55 56.7 


. . -f 17.1 

251 -i- 17.7 

. . 4- 37.0 

. . 4- I 24.0 

■ --HI 23.9 


68 38 56.9 — 2.6 

69 10 34.5 — 2.6, 
85 7 18.6 4- 3.5 1 

108 4 2.4 — 0.8 , 
108 3 41.8 — 0.8 1 


45 
4^^ 
47 

4'5 

49 

1 


42 12 , 
352 12 
64 56 

49 f> 1 
359 33 
29 14- 


7-2 8.3 

7.2 7.0 

5.3 6.2 
5.3 5-2 

7.8 7.8 

8.5 i 8.2 

* 


1 

1.0 

2.0 

27.8 

28.4 

1 2.0 

! 0.2 

1 


29.2 
29.4 
27.8 
25.2 
0.0 
29.5 


I 31 
1 24 

23 

• 

19 
23 


• « 

• • 

1 995 

• • 

735 

1 

• • 


1 

• • • • 

050 ^ . . 
940 . . 

. . 1 235 
715 i . . 
315 . • 


765 
000 

955 

• • 

815 
i 225 

1 


640 

1 . . 
' 892 

• • 

795 

• • 


10. 1 
1 10. 1 

10. 1 

10. 1 
' 10. 1 

10. 1 


42 13 50.8 
, 352 15 49.7 
' 64 59 52.5 

49 10 19.6 

359 42 54.4 
29 18 o.g 

1 


. . 14- 49.7 
290 - 7.4 
. . 14- I 56.8 

► . . 4- I 3.4 

\ . . - 0.3 
I . . 4- 30.9 

1 1 


93 21 1.7 - 0.1 • 
43 22 3.5 -h 5.4! 
116 8 10.5 4- 1.6 
100 17 44.2 0.0 
50 49 15.3 4- 1.8 
80 24 52.9 4- 0.8 

1 


No. 


Barom. 


External | A 
1 Therm. 1 


Lttached ' 
Therm. 
















No. 




MOONS— 




in. 










• 












Parallax. I Semi-diam. 


19 


29 . 920 


98.8 


90.2 


























; 
1 



For summary of the elements of reduction see pat^e 3. 



9 



66 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



•i •/■: 



DATE. 1 

y. 




OBJECT. 


if 
> 

it 

(A 

1 w 


1 Weight. 


1 

1 

I. II. III. IV. V. VI. VII. VIII IX. 

1 1 

1 


1 

! 

Mean wire. 

m. s. i 


[nst. 

■ 

s. 


Clock 
appar'nt 

s. 


J Clock 
. adopted 

s. 


Apparent R. | 
' Ascension. 

1 
h. m. s. 


K •- 


iS6S. 




S. 


July 17 I 


ti 


Herculis . 


. . E. 




56.559.6 1.5 8. 611. 1 13. 721. 1 22.826.1 


57 


11.22 -H 


0.27 


• « 


-25.45 


1 16 


56 46,04 -r 


0.21 


2 


( 


I'rsae Minoris 


. . E. 




. . ! . . 37. 653. 2 7.522.337.7 .... 





7.73- 


2.59 


• • 


^25.45 


1 16 


59 39.69- 


0.22 


3 


a 


Herculis . 


. . E. 




. . . . 0.7 2.8 4.9 7.1 9.3 . . . . 


• 9 


4.9^' -H 


0.41 


-25.52 


-25.46 


17 


8 39.91 + 


O.yjti 


4 


fl 


Vrsx Minoris 


. . E. 




. . . . 30.0 6.040.014.049.0 . . . . 


15 


39.901- 


4.94 


• • 


-25.50 


, 18 


15 9-46- 


0.30 


5 

• 




Polaris . 


. . T. 




. . . . 10.036.0 . . 22.045.0 . . . . 


II 


58.52- 

1 
1 


17,82 


• • 


— 27.10 


I 


II 1 3 . txj + 


2.U^ 


6 





Ceti . 


. . T. 


3 


40.743.444.851.053.255.3 1.5 3.1 5.5 


17 


1 

53.17-I- 


0.61 


-27.07 


— 27.10 


I 


17 26. 6S - 


0.03 


7 


a 


Tauri 


. . T. 




'35.3 38. 1 39.546.048.1 50.256.8 58.3 I.O 


28 


48.14 ^- 


0.41 


— 27.22 


-27.24 


, 4 


28 21.31 — 


0.02 


S 


:i 


Orionis 


. . T. 




'26.028.5 30.2 36.238.340.446.648. 1 50.7 


8 


38.33•+- 


0.61 


-27.24 


-27.26 


' 5 


8 II.6>- 


O.OI 


iS 9 




Sun I, N. . 


. . T. 




12.415.0,16.823.325.727.734,335.838.6 


52 


25.51 -^- 


0.37 


« ■ 


-27.37 


7 


51 58.51 


• 


10 




Sun II. S. . 


. . T. 1 




27.7,30.632.238.841.043.249.651.254.2 


54 40.94 -h 


0.37 


■ • 


-27.37 


7 


54 13.94, 


• 


II 




Polaris. S. P. 


. . T. 




..... 10.047.0 . . 59.037.0 . . . . 


11 


22.92+18.91 


• • 


,-27.58 


I 


II 14.25 + 


2.32 


13 


a 


\ irginis 


. . T. 




'30. i'32. 8 34. 340. 642. 6 44- 7 50. 9 52. 4 55 


18 


42.60 + 


0.62 


-27.51 


'-27.59 


13 


iS 15.63 - 


0.07 


13 


w 

> 


\ ir^inis 


. . T. 




,14.0 16.5 18. 024. 1 26.328.334.435.838.5 


28 


26.21 + 

1 


0.54 


-27.54 


-27.60 


13 


27 59.15- 


O.tKj 


14 


7 


Bootis . 


. . T. 




39. 1^41. 943. 549. 952. 1 54.2 0.7 2.4 5.1 


48 


I 

52.10 + 


0.38 


-27.53 


—27.60 


• 13 


48 24 . S8 - 


0.10 


»5 


e 


Crs;e Min., (E. 


P.) : T. 1 




,40.059.011.055.8 10.826.011.722.641.8 





10.97;- 


3.62 


• • 


-27.74 


16 

1 


59 3961 - 


o.i: 


16 


a 


Herculis. (R.) 


. . ; T. 


3 


154-757.258.9' 5-3 7-4 9.5i5.8'i7.520.i 


9 


7.3S + 


0.16 


• • 


-27.75 


17 


8 39.79- 


o.(X. 


17 


b 


Ophiuchi . 


. . T. ' 


• 


34.937.839.346.148.350.557.158.8 1.6 


18 


48.27 + 


0.74- 


-27.76 


-27.75 


17 


18 21.26 + 


O.OI 


iS 


a 


Ophiuchi,(R.) 


. . ' T. 


3 


5.7. 8.3 9.516,118.220.426.628.130.7 


29 


18.18 + 

1 


0.18 


• • 


-27.76 


17 


28 50.60 — 


0.04 


19 


(J 


Draconis, (R.) . 


T ' 


3 


41.8 48.753.010.3 16. 1 21.438.4 42.549.8 


38 


15. 78- 


1.30 


• • 


-27.76 


17 


37 46.72,+ 


0.1> 


20 


^' 


Draconis 


. 1 T. 


• 


9.4118.123.343.249.756.5 16.421,530.0 


44 49.79- 


0.86 


• • 


-27.76 


17 


44 21.17 + 


0.3.1 


21 


} 


Draconis, (R.). 


. , T. 


3 


43.647.750.410.2 3-2 6.5 16.4 19.022.9 


54 


3.32, 


0.46 


• « 


-27.77 


1 17 


53 350<;^ 


0.04 


22 


n 


Serpentis . 


. T. 

1 




j46. 2^48.750. 256. 558. 5 0.5,6.7 8.310.7 


14 


58.48 + 


0.56 - 


-27.86 


1-27.78 


18 


14 31.26 + 


0.<Xl 


23 


I 


Aquil;e . 


. T. 




,18.721.322.929.1 31. 2 33. 3 39-4 40. 943. 6 


28 


3I.I6I + 


0.61 - 


-27.84 


-27.79 


. 18 


28 3.98 - 


O.OQ 


24 


51 


Cephei, S. P. . 


. T. 


4 


9.026.044.0 2.019.0. . . . . 

1 


37 


43.82 + 


9.85 


• • 


-27.80 


6 


37 25.87 + 


1-35 


25 


G 


Sai^ittarii 


T 




1 
20.9,23.825.632.434.636.943.845.548.3 


47 


34.641+ 


0.77- 


-27.85 


— 27.80 


18 


47 7.61 -h 


0.03 


26 




Irene 


. T. 


3 


15.2 18. 1 19.926.828.931.1 38.1 39.843. J 1 


57 29.ooi-l- 


0.78 


• • 


-27.81 


18 


57 1.97 


• 


27 


ft 


Aquilx . 


. T. 




■ 8.2 10.8 12.3 18.4 20.4 22. 5 28.6 30. 1 32.6 


19 


20.43 + 


0.52 - 


-27.94 


1—27.82 


19 


18 53.13 + 


0.13 


20 


t 


Draconis 


. T. 




33.941.545.7, 3-8 9. 715. 333. 538. 345. 4 


49 


9.68 — 


0.70 


■ • 


-27.84 


19 48 41.14 -t- 


0-33 


29 




Hcsperia . 


. T. 


3 


16.8 19.320.9 ' . . . . 


4 


29.15,+ 


0.61 


• • 


-27.86 


20 


4 I . <)<>, 


• • 


30 


a- 


Capricorn i . 


. T. 




0.9' 3.6 5.2 II. 5 13.5 15. 621. 8 23.526.0 

1 


II 


l3.5I;-^- 


0.64 - 


-27.89 


-27.86 


20 


10 46.29 -r 


o.t)3 


21 31 




Sun II, S. . 


. E. 




1 . . , . . 10.4 12.4 14.4 16.5 18.7 . . . . 


6 


14.48 + 


0.33 


• • 


• • 


■ 


• • • 


. 


32 




Polaris . 


.. T. 




14.556.5 1. 049. 012.0 


II 


35.08-1 


16.07 


• • 


I- 0.55 


I 


II 1S.461-I- 


3-5f 


33 


.i 


Orionis 


. T. 




59.31 1.9 3.4, 9.6 II. 6 13. 720. 021. 5 24.1 


8 


11.68 + 


0.51 - 


- 0.40 


- 0.47 


5 


8 11.72- 


O.K' 


34 


i 


Tauri 


. T. 




43.546.448.255.257.559.8 6.8 8. 511. 4 


17 


57. 48 + 


0.23 - 


- 0.45 


'- 0.47 


5 


17 57.24- 


0.03 


35 


A 


Orionis 


. r. 




3-5 .... 13. 7«5. 717.8 .... 28.1 

1 


25 


15.76 + 

1 


0.45 - 


- 0.26 


- 0.46 


5 


25 15.75- 


0.2: 


36 


t 


Orionis 


. T. 




18. 621. 3 . . 29.031.033.0 . . .40,843.6 


29 


I 
31.00 + 


0.46 - 


- 0.39 


- 0.46 


5 


29 3 1 . 00 — 


cot' 


37 


a 


Orionis 


. T. 




■49.451.953.459.6 1.6 3.8 9.9111.514.2 


48 


1 . 701 + 


0.40 - 


- 0.42 


— 0.46 


5 


48 1.64- 


0.04 


22 3S 




Sun I . . . 


. T. 




,45.248.149.5 .. .. *. .. ** *. 


7 


58.30J+ 


0.30 


• • 


- 0.41 


8 


7 58.19-^ 


^7-43 


39 


a 


Ophiuchi . 


. T. 




38.040.642.148.4,50.552.658.71 0.4 2.9, 


28 


50.47 + 


0.37- 


- 0.21 


- 0.23 


17 


28 50.61 — 


0.01 


40 


u 


Draconis . 


. T. 




13.2 


20. 3 24. 5 41. 2 47. 6 53. I 9.9 14. 021.0 


37 


47.201- 


0.601 


• • 


— 0.23 


17 


37 46.37- 


0.03 


41 


V' 


Draconis, (R.) . 


. T. 


3 


• • 


28.836.349.454.4 3.0 


44 


22 . 70 — 


1.36 


• • 


— 0.22 


17 


44 21.12 + 


0.51 


42 




Draconis 


. T. 




15. 6 19. 5 22. 1132. 1 35. 3 38. 6 48. 2 50. 7 55. 1 


53 


35.24i- 


0.06 


• « 


— 0.22 


17 


53 34.9^>- 


0.03 


43 


f^ 


Sagittarii 


. T. : 




1 1 , 1 
'41.344.1,45.852.454.556.6 3.3, 4.8 7.6 


5 


54.49 -^- 


0.61 - 


- 0.29 


— 0.21 


18 


5 54.89 + 


0.(V' 


44 


6 


L'rsae Minoris . 


. T. 




6.041.5 . . 51.025.0 . . 


15 


16.00 — 


6.35 


■ • 


— 0.21 


18 


15 9-44 + 


0.74 


45 ; 




Irene 


■ < T. 


3 


110.8113.915.6122.524.927.334.236.038.7 


53 


24.88'+ 


0.67 


• • 


— 0,20 


18 


53 25.35. 


• 


4^^ 


*• 


Aquila; . 


• 1 T. 




I0.3 13. 014. 6 20. 9 23. 025. 1 31. 3 32. 935. 5 


59 


22.96 + 


0.36 - 


- 0.29 


— 0.20 1 


18 


59 23.12 + 


0.10 


47 


A 


Aquilst . 


. ' T. 




40.643.144.650.752.854.9 0.8 2.5 5.1 

1 ' 


i3 


52.79 -»- 

1 


0.43- 


- 0.19 


— 0.19 


19 


18 53.041 + 


0.U2 


4^ 


K 


Aquilne . 


. T. 


• 


1 ' , . 1 
37.340.041.447.649.751.757.959.4 2.0 


29 49.67 f 


0.51 - 


- 0.30 


— 0.19 

X 1 


19 


29 49-99 f 


O.II 


49 


a 


Aquilac, (R.) . 


. T. 


3 


10.7 13. 3 14. 9 21. 023.1 25. 1 31. 2 32. 7 35. 4 

1 1 ' 


44 


23.05 + 


0.22 


• « 


- 0.18 

1 

— .*. — 


19 44 23.09 -h 

! 


0.02 



19.20.28,41. Bisections at sets Band D. 
25. Observation largely in error. 
26.29,45. Wire A used. 



W^irc B probably used. 



OBSERVATIONS WITH THE TBAN8IT CIRCLE. 



67 





• 


MICROSCOPE MICROMS. 


TELESCOPE MICROMETER. 









1 
1 


1 
















0m 
0^ 


Division. 


I. 


II. 


III. 


IV. 
















Apparent 
Zenith Dis- 
tance, South. 




Refraction. 


Apparent N. 
P. Distance. 


c 
S 


•« 
^ 


Rev. 


I. 


2. 


3. 


4. 


5. 


.2o , 


A 


























N^ 








C/5 












:5u 




c 


1 
' r 


• 


»» 


II 


'1 






1 
1 








* # 


c 


1 


% » 






1 1 1 





( 


«« 


' # 


I 


5 


4 


5.8 


6.7 


29.8 


26.7 


24 


• • 


852 


« ■ 


800 


• • 


10. 1 


5 


7 


39 


• • 


+ 


5.0 


56 


14 


5-2 


+ 1.6 


2 


316 


36 


6.6 


7-4 


2.3 


0.7 


■ 


500 


550 


465 


535 


505 


10. 1 


316 


39 


II. 


1 


— 


51-9 


7 


44 


40.3 


— I.I 


3 


24 


iS g 


» 21.5 


21.0 


13.6 


10.5 


30 


• • 


650 


• • 


500 


■ • 


10. 1 


24 


20 


26.5 


1 


-4- 


24.9 


75^27 


12.6 


+ 0.9 


4 

5 


312 


14 1 9 


28.9 


29.0 


24.8 


22.1 


23 


565 


635 


530 


650 


630 


10. 1 


312 


18 


3.6 


• • 


""■ 


I 0.6 1 


3 


23 


24.2 


- 2.4, 


6 


47 


42 10 


• 23.3 


22.5 


15.0 


16.5 


28 


• • 


914 




800 


• • 


10.4 


47 


44 


20.3 


383 , 


-+- 


I 1.4 


98 


51 


42.9 


- 1-7 


i 


22 


36 


8.2 


8.5 


0.7 


0.5 


27 


• ■ 


816 




738 


• • 


10.6 


22 


38 


52.0 


295 


-h 


22.9 


73 


45 


36.1 


+ 0.4 


• 


47 


10 

1 


26.3 


26.5 


18.9 


19. 1 


24 . 


• • 


030 




890 


• • 


10.6 


47 


14 


2.0 


2S0 


-h 


590 


98 


21 


22.2 


- 2.3 


9 


17 


40 


10.9 


10.3 


2.9 


3.8 


27 


• • 


463 






• • 


10.7 


17 


42 


55.8 


• • 


+ 


17. 1 


68 


49 


34.1 


— 2.6 


10 


iS 


12 ' 


4.0 


2.9 


25.3 


26.2 


29 


• ■ 


• m 




610 


600 


10.7 


l& 


14 


27.9 


208 


-1- 


17.7 


69 


21 


6.8 


- 2.7 


II 


307 


28 


10.4 


9-5 


3.5 


4.4 


27 


40S 


523 




492 


441 


10.6 


307 


30 


54.0 


ibR 


— 


I 9-5 


358 3^> 


5-7 


4 0.4 


12 


4^) 


18 


9.8 


10.5 


2.4 


2.7 


27 


■ • 


318 




225 


• ■ 


10.6 


49 


20 


57.7 


188 


4- 


I 2.2 


TOO 


28 


21. 1 


- 0.3 


13 


3^ 


44 


8.0 


8.5 


0.6 


0.5 


22 


• a 


630 




732 


• • 


10.6 


38 48 


IQ.O 


206 


-f 


43.1 , 


89 


55 


14-3 


4- 2.1 


M 


19 46 1 


II. 


11.5 


4.1 


4.0 


24 


■ • 


818 




663 


. . 


10.6 


19 49 


35-3 


220 


+ 


19.5 


70 


56 


16.0 


H- 0.3 


i^ 


316 


36 


10.6 


10.8 


5.6 


4.7 


26 


• • 


260 


205 


174 


• • 


10.6 


316 


39 


12.5 


289 




51.6 


7 


44 42.1 


'-h 0.8 


i6 


!«;«; 


36 


6.0 


6.5 


0.0 


27.4 


25 


038 


• • 




020 


938 


10.6 


155 


39 


36.0 


« • 


— 


24.7 


75 


26 


9-9 


- 1.6 


17 


62 


52 


4.8 


6.3 


29.0 


28.0 


28 


> • 


060 




918 


• • 


10.6 


62 


54 


51.0 


2S8 


4- 


1 46 4 


114 


2 


58.6 


-h 0.6 


iS 


153 


44 1 


4.7 


5-5 


28.6 


26.4 


29 


376 


244 


^ 


140 


231 


10.6 


153 


46 


32.5 


• • 


— 


27.0 


77 


19 


15.7 


'— 0.2 

1 


10 


209 


52 


3.8 


6.5 


0.4 


27.0 


26 , 


232 


286 1 




126 


128 


10.6 


209 55 


18.6 


• • 


'■¥ 


31.5 


21 


10 


31.1 


- 5-1 


20 


326 


38 


8.8 


8.4 


3.5 


2.7 


26 ' 


• • 


400 




429 


• « 


10.6 


326 


41 


II. I 


292 


— 


36.0 


17 


46 56.9 


|4- 0.9, 


21 


192 


34 1 


3.6 


6.3 


29.6 


25.7 


28 


300 


330 




080 


990 


10.6 


192 36 48.3 


• • 


-h 


12.3 ' 


38 


29 


20.6 


' 1 

- 2.7 


22 


41 


44 


7.3 


7.7 


0.9 


29.5 


21 


• 


589 




490 


• • 


10.6 


41 


48 


27.9 


297 


-f 


49.0 1 


92 


55 


38.1 


- 2.9 


23 


47 


8 1 


9.5 


10.5 


3.0 


2.6 


21 


« • 


308 




249 


• • 


10.6 


47 


12 


29.3 


• • 


-h 


59-2 


98 


19 49.7 


— I.I 


24 


3n(» 


6 ' 

1 


6.4 


6.7 


1-7 


1.3 


26 


7f>3 


744 


763 


762 


720 


10.6 


306 


9 


8.2 


300 




I 14.9 

1 


357 


14 


14.5 


- 0.4 


25 


6«; 


1 

18 


6.0 


l'\ 


0.5 


29.5 


25 


« • 


472 




321 


• • 


10.6 


65 


21 


29.4 


300 


-h 


1 58.9 


116 


29 49.5 


' 


2') 


6f> 


5^» 


6.2 


I'l 


29.5 


28.7 


29 


523 


578 




550 


512 


10.6 


67 





58.7 


303 


H- 


2 8.5 


118 


9 


28.4 


- 4.9 


-/ 


35 


58 ' 


6.1 


5.5 


28.7 


28.4 


25 


■ • 


463 




300 


■ 


10.6 


35 


51 


31.0 


304 


-1- 


39-7 


86 


58 


319 


4- 0.2 


2> 


32S 


54 


51 


5.3 


0.3 


28.6 


22 


• • 


974 




038 


■ • 


10.6 


328 58 


7.3 


« ■ 


— 


330 


20 


3 


55.5 


- 05 


2) 


47 


56 


9.0 


9.3 


2.3 


0.8 


29 


890 


710 




284 


080 


1 10.6 


48 





57.2 


• • 


+ 


I I.O 


99 


8 


19.4 


;- 2.7 


3> 


51 


46 


6.5 


7.5 


03 , 


,29.0 


33 


916 


030 




7f)0 


792 


10.6 


51 


47 


193 


312 


4- 


I 9.7 


102 


54 


50.2 


'- 0.7 


31 
32 

33 


18 


4^> 


9.0 


8.8 


2.6 


1.3 


29 


• • 


• • 




200 


3tX5 


10.6 


18 


48 


27.4 


200 


4- 

1 


18.3 


69 


55 


6.9 


- 2.8 


47 


10 


0.4 


0.3 


24.2 


23.8 


23 


• • 


740 




604 


■ • 


10.6 


47 


M 


2.3 


263 


-f- 


58.7 


98 


21 


22.2 


;- 1.6 


3* 


10 


20 

1 


5.6 


4-9 


29.4 


28.1 


23 


• • 


339 




256 


a • 


10.6 


10 


24 


31 


263 


4- 


IQ.O 


61 


30 


34.3 


— 0.8 


35 


39 


14 ' 


3.0 


2.4 


25.5 


25.1 


28 


• ■ 


050 




920 


• • 


' 10.6 


39 


16 


£4.2 


• • 


-f 


4\S 


90 


23 


59-9 


- 1.5 


?0 


. 40 


6 


5.5 


4.6 


28.9 


28.0 


22 


• • 


« • 




400 


541 


10.6 


40 


10 


14.8 


263 


4 


45.9 


91 


17 


21.9 


— 0.6 


37 


31 


26 < 


2.6 


2.0 


24.3 


26.0 


22 

1 


3^3 


266 




143 


135 


10.6 


31 


30 


22.6 


259 


+ 


33.3 


82 


37 


17. 1 


— I.I 

1 


3^ 
3) 


26 


10 


4.9 


3.1 


1 27.0 


25.5 


25 


• • 


772 , 




670 


• • 


10.4 


26 


13 


27.6 


347 


+ 


273 


77 


20 


16.1 


: 
-h 0.7 


4') 


330 


2 , 


2.4 


1.5 


26.8 


25.3 


28 


• • 


816 




670 


. 


10.4 


330 


4 


43.3 


• • 


— 


32.0 


21 


10 


32.5 


- 2.7 


41 


213 


14 


1.5 


2.4 


26.8 


24.4 


20 


■ » 


• • 


310 


260 


210 


10.4 


213 


18 


52.0 


• • 


4 


36- 5 ' 


17 


4f> 


52.7 


- 2.3 


42 


347 


20 . 


13.5 


11.5 


6.5 


6.1 


26 


• • 


208 




052 


• « 


10.4 


547 


23 


12.4 


• • 


— 


12.4 

1 


38 


29 


21.2 


- I.I 

1 


43 


59 


54 


3.1 


1.7 


24.8 


25.1 


1 
26 


• • 


460 




343 


• • 


10.4 


59 


57 


18.5 


363 


-H 


I 35.8 1 


III 


5 


15.5 


;-'-5 


44 


112 


14 i 


10.8 


9.0 


' 4.1 


4.0 


22 


980 


870 


820 


840 


908 


10.4 


312 


18 


4-. 2 


• • 


— 


I I.I 


3 


23 


24.3 


- 1.0 


45 


^>7 


10 ' 


13.5 


13. 1 


, 5.8 


6.5 


31 


058 


064 




880 


853 


10.4 


67 


14 


30.0 


363 


+ 


2 II. 7 1 


118 


23 


2.9 


- 50 


46 


25 


10 


10.4 


9.2 


2.7 


2.1 


28 ; 


• • 


088 




9S2 


• • 


10.4 


25 


12 


46.2 


• • 


-f 


26.2 ' 


76 


19 


33.6 


1— I.I ■ 


47 


35 


58 


8.5 


7-3 


; 05 


1.4 


25 * 


• • 


395 




290 


• • 


10.4 


36 


I 


29.1 


• • 


-f- 


40.4 ' 


87 


8 


30- 7 


- 0.5 


4S 


46 


8 


10.2 


9.3 


2.6 


2.4 


25 


• ■ 


008 




940 


• 


10.4 


46 


II 


32.9 


357 


4 


57.9 


97 


18 


52.0 


, 05 


40 


149 36 1 
Baroni. 


9-5 

Extcr 
Ther 


9-3 

nal P^ 
m. 


3.5 

1 

1 


t.5 


29 


336 


340 




220 


168 


10.4 


149 


38 


27.4 


• • 




32.5 
s'o. 


81 


28 


26.3 

1^ 


+ 0.4. 

1 


No 


kttachec 
rherm. 


1 
























■^ 


MOO 


1 
1 






































i 








1 



in. 



Parallax. Semi-diam. 



/■or summary of the dements of reduction see fo^e 3. 



t >> 



I II 



6S 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



i X 



July 2a 



23 



25 



3H 



DATE. ^ 

E 
3 



I 

3 

3 
4 

5 
6 

7 

8 

9 

10 
II 
12 

13 
14 

15 
.16 

17 

18 

19 

20 
21 
22 

23 
24 

25 
26 

27 
28 
29 

30 
31 

32 

33 
34 

35 
36 
M 
3« 
39 

40 

4« 
42 

♦3 
44 

4^ 

40 

47 

4H 
♦9 



OBJECT. 



UcspiTia . 
a* Capricorni . 
^Calypso 
Venus II, N, 

Sun I, S. . 
Sun II. N. . 
Moon I 
Polaris. S. F 
a Virginis 



a Scrpentis . 
f Serpcntis . 

Saturn I. S. 

Saturn II, N. 
7/ Draconts . 

C Ophiuchi 

(i room. 966, S. 
,< Draconis 
w Draconis, (R.) 
^f Draconis, (R.) 



22 Camclopard., S. P 

jr; .Serpcntis 

^ Crsse Minoris 

A Lyrae 

J Aquilse . 

Polaris. S. P. 
s V iri^inis 

Moon I, N 
V Hoot is . 
a Kootis . 



I Aquil»? . 

51 Cfphei, S. 

(7 Sai^ittarii 

C Aquilic, (R 

1/ Sa/i^ittarii 



h 

) 
a 

.i 



At|uihr. (R 

Aquihr 

Aquila* 

y\(|uil:r 

Aquil;r 



Hrspcria 

a* Catirirorni 
Calvp^o 



Sun, S. . 
Sun II. N. 
Ophiurhi 
Moon I, N 
Ophiuchi 



A Ophiurhi 
// Ilrrruli% 



) 



) 






N. 

N. 
N. 
N. 
N. 



N. 
N. 

N. 
N. 
N. 

F. 
N, 

N. 

N 

N. 



N. 
N. 
N 

N. 
N 



X - • - -- Apparent R. 

- ' n^^i, f-\^^u Ascension. 

.^ I. II. III. IV. V. VI. VII. VIII IX. Mean wire. Inst. '^**'S*', V . ^ 
^ apparnt. adopted. 



y — 



T. 3 43.846.348.1 54256. 258. 5 4.4 6.0 8.7 

T. ... 41.944.046.2 48.2 50.454.456. 1 58.6 

T. 2 57.8 0.5 2.4 23.4 

N. 3.1 30. 633. 134. 7'4«043. 145. 251. 553. 1 55.7 



T. 
T. 
T. 
T. 
T. 

T. 
T. I 
T. 
T. 
T. 

T. 
T. 
T. 
T, 
T. 

T. 
T. , 
T. 

E. 



. 43. 145-947. 554.1 56.258.4 4.8 6.5 9.3 

. 57.6 0.5 2.0 8.610.712.819.521.023.6 

2 . . . . 34.236.338.540.542.7 . . . . 

2 .... 50.028.0 1.5 . . 15.029.025.0 

3 2.4 4.9 6.5 12.8 14. 916. 923. 1 24.727.4 

4 34.737.338.&45.047-M9-> 55.356.9594 
4 3.1 5.6 7.1 13. 215. 317. 423. 525. 127. 7 

3 19. 922. 1 24.2 26.428.7 . . . . 

3 '12.515.216.9 34-035.638.3 

1.2 13.8 18.1 22. 631. 1 34.639.6 

. 42.645.146.652.954.756.9 3.2 4.7 7.2 

2 . . . . 18.5 10.7 3.035.247.1 . . . , 

2 8. 913. 1 15.725.828.932.242.244.849.2 

4 13. 224. 435. 841. 347. 1 52.958.4 9.620.6 

3 . . . . 8.2 14.8 21.6 2S. 034. 7 . . . . 

2 50.243.038.721.3 15.5 9.952.548.040.9 

2 18.4 20.9 22.4 28.5 30.5 32.6 38.640.2 42. s 
3 23.030.057.540.7 

3 59.8 2,8 4.612.014.516.824.025.829.0 

3 4S. 451. 252. 658. 8 i.o 2.9 9.210.813.3 

. 25. 042. 041. 031.0 . . 40.0 

45.348.049.455-657.659.7, 5.6 7.3 9.8 

43,245.847.553.655-958.0 4.3 5.8 8.4, 

10.4 13.0 14.8 21.2 23.4 25.5 

,25.027.729.535.938.1,40.346.748.351.1 

. 50.152.554.2 0.3 2.4' 4.3 10. 612. 3 14.7 

450 2.018.536.754.3 . . . . ' 

. •32.255.056.6 3.6 5.9; 8.2 14. 916. 7 19.5 

4 9.1 1 1. 6 13.2 19.621.7,23.730.1 31.734.4 
3 42.745.447.1 53. 5.55-757. 8 4.2 59 8.6 

3 39.142.143.449.6,51.7153.7 

. 35.938.540.246.348.3.50.456.558.1 0.5' 

3 '475 50.1 51.7 58.0 0.0. 2.1 8.3 9.812.5 

. 9.2 1 1. 8 13.419.6,21.623.729.831.434.01 

3 38.441.042.648.650.752.759.0 0.5 3.1 

2 23.6 25.9 ' 

3 32.1 34.7 36.342.5 44.6-46.7 53- « 54.637.3 
. . . 18.620.7 . . . . 1 . . 37.338.941.4, 



3 
3 

2 

3 



• 


















m. s. 


s. 


S. 


■ 


s. 




/ 


/* 


s. 


56.24 -H 


0.52 


■ • 


— 


0.18 


20 





56.5^ 


. 


10 46.12 + 


0.54- 


0.36 


— 


0.18 


20 


10 


46.48 4 


0. iS 


24 10.68 -h 


0.57 


• • 


— 


0.17 


20 


24 


11.08 


• 


23 43.11 + 


0.32 


• • 


-H 


o.o<^ 


7 


23 


43 52- 


I.O^ 


11 56.2c -♦- 


0.2q 


• • 


+- 


0. 11 


8 


II 


56. (k 


• r 


14 10.7c ^- 


0.29 


• • 


4- 


O.II 


8 


14 


II. It) 


. 


49 38.44 H- 


0.39 


• • 


-4- 


0.18 


II 


49 


39.01 * ( 


')7'ii 


II 2.53-»- 


13.82 


■ • 


-4- 


0.21 


I 


11 


16. 5(; + 


0.>2 


18 14.84 -1- 


0.48 -h 


0.32 


-H 


0.21 


13 


18 


15-53 — 


1».I1 


37 47.07 -1- 


0.37 + 


0.28 


+ 


0.25 


15 


37 


47. 6<, - 


0.03 


44.15.33 + 


0.30 + 


0.30 


-h 


0.25 


15 


44 


15.97 - 


0.(rf» 


49 24. 2f -h 


0.53 


• • 


-h 


0.26 


15 


49 


25.05. 


. 


49 25.42 -h 


0.53 


■ • 


-4- 


0.26 


15 


49 


26.21 


. 


22 13.8S- 


0.22 

1 


• • 


+ 

1 


0.27 


16 


22 


13.93 - 


o.S'« 


29 54.88 -4- 


0.48 -h 


0.33 


' + 


0.27 


16 


29 


1 
55-f'3- 


O.II 


22 2 . c;o -H 


1.57 


• • 


■4- 


0.29 


5 


22 


4.7( - 


0.41 


27 28.98 — 


0.03 


• * 


-1- 


0.29 


17 


27 


29.24 ^- 


o.o"» 


37 4703- 


0.88 


• m 


4- 


0.30 


»7 


37 


46. 4J^ ^ 


i». i: 


44 21.46- 


I.IC 


m m 


-4- 


0.30 


17 


44 


20. 6( + 


o.i», 


4 15.56 + 


1.27 


• « 


+ 


0.30 


6 


4 


17.13 -h 


0. 2- 


14 30.54 't- 


0.43 ^- 


0.20 


-h 


0.31 


18 


14 


31. 2^ -^ 


<». 12 


is 13-63- 


5.12. 


• • 


-h 


0.31 


18 


15 


8.82 -1- 


0.33 


45 14.37 + 


0.19 -4- 


0.30 


+ 


0.32 


18 


45 


14. 8^ -i- 


<>.i\4 


40 0.91 + 


0.36 4- 


0.28 


4- 


0.34 


19 40 


1.61 -r- 


0.07 


II 5.38+13.42 


« • 


-4- 


1 .09 


I 


II 


19. 8i. 4- 


2.51 


27 57.59 + 


0.39 + 


I. 15 


•-4- 


l.IO 


13 


27 


59. o^ — 


0.05 


38 55.83 + 


0.43 


• • 


-h 


1. 10 


13 


38 


57-3f-^< 


^>5.9i 


48 23.35 -h 


0.284- 


1.23 


+ 


l.IO 


13 


48 


24.73 - 


t). ir» 


9 38.07 + 


0.27 -h 


1.09 


-4- 


I. II 


14 


9 


39.45 -r 


0.03 


28 2 ..38 -H 


0.44 V 


I. II 


+ 


1. 19 


iS 


28 


4.01 -1- 


0. 12 


37 19.46 -H 


6.98 


• • 


+ 


1. 19 


6 


37 


27.63 4- 


1 .22 


47 5.84 + 


0.57 + 


I. 17 


+ 


1. 19 


18 


47 


•jJk. 


o.<x^ 


59 21.68 + 


0.16 


• • 


+ 


1. 19 


18 


59 23.03 -^ 


0.07 


9 55.6f) + 


0.51 -1- 


1.13 


+ 


1 .20 


19 


9 57.37 - 


O.Ol 


18 51.60 + 


0.25 


m m 


f 


I.2Q 


19 


iS 


53.05 -4- 


0.i>2 


29 48 . 30 -h 


0.44 ■♦- 


1.15 


4 


1.20 


19 


29 


49.94 -*- 


t) . 05 


40 0.00 -h 


0.33 + 


1.23 


-»- 


I. 21 


19 


40 


I - 54 - 


0.01 


44 21.61 -1- 


0.35 + 


I. 12 


f 


I. 21 


19 44 


23.17 4 


0. 11' 


4& 50.72 + 


0,36 + 


I. 17 


f 


I .21 


19 


48 


52.29 4- 


0.04 


58 35-86-4- 


0.45 


• • 


\ 


t.2I 


19 


58 


37.52 


• • 


10 44.65 + 


0.47 ^ 


1 .21 


i. 


1.22 


20 


10 


46.34 + 


t».t»l 


21 28.82 + 


0.50 


• • 


i- 


1.22 


20 


21 


30.54 


• « 



K. . 36.939.541.347.649.9.52.058.4 0.1 2.9 

E. . 11.^14.015.421.623.6125.732.133.536.1 

E. 4 'i2.755.5570 3.5 5.7 7.914.416.4190 

E. . 3934i.943.549.65'.7|53-7 o.i 1.5 4-3 

E 19.321. 1 23.325.427.4 .... 

E. . 27.430.632.439.842.1.44.551.953.656.8 



49.84 f 0.17 . . 4 3-57 8 33 53.58— ^>-93 

7 23,72 + 0.22 4- 3. 78 h 3.68 , 16 7 27.62 — o.t^^ 

17 5.79+ 0.26 . . f 3.68 16 17 9.73 -1-65, «;(• 

29 51.73 ^- 0.24 -h 3.67 -+ 3.68 16 29 55,65— 0.04 



51 23.324- 0.204- 3.71 -»- 3. 68 
56 42.12 -}- 0.14 . .4 3. 68 



16 51 27.20 0.1* > 
16 56 46.04 -4- <>.35 



f. 3. 40. 42. Wire A used. 

IS. Histclions at Ej and VII. 
> 11,22.27. Hisertions at sets Band D. 

22. Double weight for last 2 wires. 



OBSEBVATIONS WITH THE TRANSIT CIRCLE. 



69 



I Circle 
= Division. 



7. 



MICROSCOPE MICROMS. 



TELESCOPE MICROMETER. 



II. III. I IV. I Rev 



I. 



2. 



3. 



4. 



5. 



o o 

CO 



Apparent 
Zenith Dis- 
tance, South. 



£ 

o 



c 



ii Refraction. 



Apparent N. 
P. Distance. 



en 

9 


(0 

B 


C 


O 


rt 


^^ 


jU 


u 


«> 


0) 


V3 


O 



S^ 



I 

2 

3 
4 


I 

s 
«) 

10 

II 

12 

n 

M 

K 

It) 

I') 

20 
21 
22 

23 
^4 

25 

-»•• 
*/ 

2S 



) 



30 
31 
32 

33 
34 

V> 
3: 

V) 

40 
41 
42 

43 
44 

45 
40 
47 

4"^ 
4') 



48 8 
51 46 

55 18 
23 12 

19 10 

18 38 

307 28 

49 iS 

31 58 
33 56 

56 52 
56 52 

337 2 

49 6 

293 48 I 
346 26 I 

20(; 52 
213 14 

2SS 14 , 

41 46 
312 14 

5 38 

2S 32 



3'^ 44 

44 48 

18 58 

47 10 
306 6 

65 16 

154 44 

58 o 

143 56 

46 8 

28 32 
30 18 
32 44 

48 16 
5! 46 

55 32 

20 16 

19 44 
42 12 

55 28 

49 6 

29 14 
5 4 



10 



10 
10 



g.8 

5.8 

10.8 

5.1 

M-5 
11.5 

3-2 

8.1 

5.8 

6.4 
6.2 

6.2 

8.5 

7.2 

41 

4.8 

29- 5 
4.2 



II. 2 
12.6 



9.5 2.0 

5.0 28.3 

9-5 , 3.0 

4-6 28.5 



12.8 
9.2 

3.5 
8.1 

4.5 
5.4 
5.3 
5.3 
7.1 

7.0 
3.6 
3.6 
1.2 
6.0 



3.4 : 


3.3 


4.5 


3-7 


5.9 


4.6 


8.8 


7.7 


8.5 


6.6 



10.5 

II. 9 



6.0 

3.8 

27.4 
1-3 

27.0 
28.1 
28.0 
28.0 
3.0 

29.8 
28.0 

27.5 

25.7 
0.0 

28.5 
28.1 
29.8 

2.3 
0.4 



3-5 
4.6 



2.4 

28.8 

2.7 
28.4 

5.8 
4.2 

28.7 
0.5 

26.2 
27.0 
27.4 
27.4 

0.3 

28.4 
27.2 
26.0 
20.8 
26.8 

26.9 
26.6 
28.5 
0.4 
29.6 



4.4 
6.7 



10.6 9.8 I 2.3 3.4 



13.3 , 

9-5 I 

13. 1 

7.7 
12.3 

10.5 

130 
12.6 

10.5 ! 
8.5^ 

14.5 , 
10.7 

14-7 



2.3 

0.3 

8.5 

9 27.8 

10 10. I 

9.8 
9.1 



13.8 

9.5 

13.5 

7.7 
12.5 

II. 7 

13.5 
12.2 

II.O 

8.5 

14.0 
11.3 
14.3 

1-5 
29.3 

8.6 

28.5 
8.7 

8.8 
6.5 



7.0 

4.5 
7.1 



5.7 
4.7 
5.7 



1.8 I 28.8 
5.7 4.6 



4.5 
■ 6.8 

3.8 
0.9 

, 7.6 
I 4.4 
' 7.4 

I 26,3 
' 24.4 

3.5 
I 22.0 

3.8 

3.8 
2.3 



2.0 
5.6 

4-5 

2.5 
0.7 

6.3 
3-2 

6.8 

25.6 

237 

2.5 

18.5 

2.5 

1.8 
0.7 



30 
26 

31 
26 

27' 

26 

^^ I 

27 ' 

22 I 
22. 

23 

24 
27 

21 , 
22 

25 , 

26 ' 

20 I 



758 

• • 

138 
360 



914 
315 



461 



24 
29 

23 

28 

26 



22 

26 

I 

27 

2a 
26 

27 

2^) 

26 

29 . 

24 

26 

25 , 
23 

23 

25 

33 



24 
31 ' 

29 555 

22 . 070 

23 .. . 
24 



654 

128 

950 

382 



570 
092 



510 



9<jo 940 



105 030 921 



1 


■ • 


865 


• • 




• • 


490 


• • 




172 


1 

• • 


078 


\ 


• • 


467 


• • 


305 


• • 


• • 


• • 




365 


• • 1 


258 


r 


• 


1 
1 

• ■ 


720 

875 




of)8 


135 1 


050 




• • 


486 1 


405 


595 ' 


574 


• • 


534 


• • 


1 


114 ! 


« • 



466 512 



887 

291 

640 
979 

393 

010 I 
688 
225 
501 , 

778 

072 
780 
030 

o<)3 

248 , 

I()0 I 

833 ' 



160 

• • 

</>5 
940 

935 



675 



768 



770 



485 



062 

• • 

795 
982 

• • 

406 
506 



445 372 



33S 

715 
202 



65S 
515 

268 

908 

686 

105 

370 
700 

001 
740 

915 
()4S 

060 

940 

864 

73« 



330 
810 



420 

764 
156 



360 



475 
460 



343 283 

875 . . 



0.4 
0.4 
0.4 
1.4 

1.4 
1.4 

0.8 
0.8 

0,6 
0.6 
0.6 
0.6 
0.6 

0.6 
0.6 
0.6 
0.6 
0.6 

0.6 
0.6 
0.6 
0.6 
0.6 



.4 
•4 



.4 
.4 
.4 
.4 
.4 

•4 
.4 
.4 
• 4 
.4 

.4 
•4 



2.3 

2.3 
2.0 

2.0 

2.0 

2.0 
2.0 



48 12 40.7, 

51 49 197 

55 22 34.4! 

23 15 18.7 

19 12 46.1 
18 41 16.2 

307 30 54.6 

49 20 56.5 

32 2 22.0 

34 o 159 

56 56 4.7 
56 55 47-6' 

337 4 5i-9| 

49 10 21.5 

293 52 22. 5I 
346 29 31.6, 
209 55 18.2' 
213 18 51.7' 



28 8 

41 
312 

5 
28 



17 

48 

18 
40 

35 



38 48 
44 51 



45.4: 
26.7 

2. 1. 

36.0- 

16.2 



8.2 
3.9 



357 f 1 2.0 

. . 4- I 10.5 

357 -^- I 20.3 

230 -f 23.2 



99 20 3.9—2.7; 
102 56 51.4 -h 0.8 



106 30 15.9 
74 22 3.1 



. . -+- 
213 4- 



18.7 
18.2 



- 3.6 
-II. 7 



70 19 26.0 — 2.8 



69 47 55.6 



- 2.8 



192 — I 9.6 I 
. . 4- I 2.3 

261 -h 34.0 

. . -f- 36.7 

..-HI 23.4 , 

..-hi 23.4 , 

273 - 23.0. 

• . + I 3.1 , 
. . — 2 2.7 ; 

287 — 13.2 I 

• . 1+ 31-5 

. . -h 36.0 , 



358 36 6.2 -I- O.I 
100 28 20.0 — I.O 



83 
85 

108 

108 

28 



9 17.2 
7 13.8 

3 49.3 

3 32.2 

10 50.1 



4- 0.7 

- 0.8 

- 0.8 

- 0.8 

- 0.2 



2ijo — 2 

. . -H 

. . — I 

297 f 

299 + 



43-7 
48.9 

o. I 

5.5 
29.9 



248 4- 43.6 
248 4- 53.9 



47 12 29. I' 
30^) 9 6,4 

65 18 56.6 

154 47 13.8 

58 3 4.2 

143 58 30.7 
46 II 33.6 

28 35 16. I; 

30 21 32.5 

32 48 3.3 

I 

48 22 32.7 
51 49 19.3' 
55 35 48.6 

20 19 25.2 
19 47 51.8 

42 13 49-5 
55 30 37-2 

49 10 19-7 

29 17 59- J 
5 7 37-3, 



327 



— I 



59-6 
15-4 

I 59.5 
. . — 26.0 

338 + I 28.5 



332 



338 4- 



4- 



40.2 
57-6 
30.2 

32.4 

35.7 



345 4- I 2.3 

346 1 4- I 10.3 
345 4- I 20.8 



305 



4- 

4- 
4- 

4- 



380 4- 

. . 4- 



20.4 
19.7 

50.5 
20.9 

4.5 

31.3 
5.0 



100 17 45.8 
344 56 41.0 

37 35 39-6 
21 10 31.5 

17 46 53-5 

339 21 22.9 

92 55 36.8 

3 23 23.2 

56 47 2.7 

79 42 7.3 



4- 



1.9 
0.1 
1. 1 

3-4 
1.2 

0.8' 

1.8 j 
1.9, 

1.7 
0.1 



89 55 130 4- 1-3 
95 58 19.0 



19 o 57.7 242 f 18.6 70 7 37-5 



14- 1.0 



98 19 49.9 — 0.4 

357 14 12.2 — 0.7 

116 27 17.3 4- 0.7 

76 19 33.4 ^ 0.7 

iO(} 10 53.9 — 0.5 

87 8 30.7 — 0.1 

97 18 52.4 4- 0.2 

79 42 7.5 4- 0.5 

81 28 26.1 -f- 0.6 

83 55 0.2 4- 0.2 



99 29 56.2 

102 56 50.8 

106 43 30.6 

71 26 6.8 

70 54 32.7 

93 21 1.2 

106 38 19.3 

100 17 45.4 



- 2.7 
4- 0.3 

- 3.6 

- 3.0 

- 2.9 
0.0 

-f 1.7 



I 



80 24 51.6 -f 0.9 
56 14 3.5 + 1.8 



No. Barom. 



External 1 Attached 
Therm. ' Thcr/n. 



in. 



For sutnmaiy of the tUmettts of reducfion see pa^e 3. 



No. 



27 
46 



MOON' 



Parallax. 



Scmi-diam. 



40 40.6 
45 41.7 



4- 15 48.8 
4- 15 II. a 



70 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. ^ 

a 



iS6S. 
Julv 28 



I 

2 

3 

4 

5 
6 



OBJECT. 



f 
a 

> 



Ursse Minoris 
Herculis 
Draconis . 
Draconis . 

Ursac Minoris 



9 I ^ 



> 


.r: 




1 -z 


«^ 


' :sr 



. : E. 

. E. 

. . E. , 

. E. I 

\ I E. 

{ E. 



SECONDS OF TRANSITS OVER WIRES. 



I 



I . . . . 6.020,435.349.7 4.5 . . . . 
23.426.1 27.633.935.938.044.446.048.5 
• • I • • 3.5 10. 1 16.623.5 30. 1 . . . . 
1 1 . 3 1 5 . 5 1 7 . 6 27 . 7 30. 9 34 . 2 44 . o 46 . 6 50 . 6 

37.521.045.0 22.049.031.5 

I . • ' • . 55030.0 6.040.015.5 . . . . 



CORRECTIONS. I 



I. ; II. !III. \\: V. VI., VII. VIII IX. Mean wire. Inst. 



* ■/: 



Clock ; Clock 
appar'nt. adopted. 



Apparent R. 
Ascension. 



m. s. s. s. 

59 35.25 — 0.61 

^ 35-0'^ f ".i'^ + 3.61 

44 16.76 — 0.07 

53 3^>-93-^ o.o<) . . 



15 4. Si 



1.02 






s. 

3. 68 

3<^ 
3.70 
370 



-h 3.70 



h. m. s. 

16 59 37-32 

17 S 39. S5 
17 44 20.39 
17 52 34.72 

i5 






- \H 

r o."> 

— o.i^ 



'5 7-4<) -•- 014 



29 7 f Ursae Minoris 

8 Moon I, N. 

9 •(* Ophiuchi . 

10 a Ophiuchi 

11 /i Herculis 

12 fi 5>agittaiii . 

13 6 Ursac Minoris 

14 a Lvne 



5. 024. 735. 821. 836. 451. 837. 04.H. 7 7.8 
3 147.150.051.658.il 0.3 2.5 9.2 10.8 13.6 
• 4-5 7.4 9.2 15.4 18. 020. 227. 028. 531. 3 
. 35.o37.739-345-447-549<^56.o57.5 o. i 
3 2.9 5.7' 7.4 14.3 16.7 19. 1 26.027.630. «; 

3 38. 541. 242. 949. 451. 653. 8 0.3 1.9 4.7 

l57-<03-<> 7.842.0,16.0 . . . . 

. 12.0 15.3 17.2 25.027.5 30.2 38. 1 40. 1 43.4 



59 3'»-47 - 1.24 

10 o.3f> 4-0.35 

18 I7.(><> ♦- 0.3S -♦- 2.82 

28 47.57 + '>.24 -^ 2.77 

41 l6.<)') . (). iS I 2.81 



-H 2.79 
-I- 2.80 
2.80 
2.81 






+ 2.81 



J 6 59 3^.o2 — o V' 

17 10 3.51 -t-fjf.'A. 

17 18 21.17— " "2 

17 28 50.62 * 0.0: 

17 41 19. 6^ fj. 11 



5 51. 5'M- 0.36 -I- 2.85 f 2. Si I 18 5 54.76— (>.«/■ 
15 7.2<H — 2.20 . . -f 2. 82 I 18 15 7.84 -h 0.7: 
32 27.644- 0.13 -I- 2.79 ¥ 2.82 ' 18 32 30.59- 0.03 



30 



31 



Aug. 5 



15 , 7 Herculis 

16 * Ophiuchi, (R.) 

17 f Crsae Minoris 

18 h Ophiuchi . 

19 w Draconis . 

20 // Sagittarii 

21 fi Crsae Minoris 

22 I Aquil^e 

23 51 Ophci, S. P. 

24 ' ^''' Draconis 

25 . > Draconis 

26 // .Sagittarii 

27 <5 Ursjc Minoris 

28 ' 51 Ccphei, S. P. 



29 

30 
31 

32 

33 

34 

35 
36 

37 

38 

39 
40 

41 

42 

43 

44 

45 
46 

47 

48 



/< Lyrjr 

Moon I, N. 
i\ , Aquilac . 

Sun I, S. 

.Sun, If . 
/< Sagittarii 
6 Ursa? Minoris 
I Aquila; . 

fi Lyrjc 
fJ Aquilx, (R.) 
K Aquilx . 
; Aquilse, (R.) 
Ilesperia 

r AquilcC . 

«♦ Capricorni . 

79 Draconis . 

32 LTrsae Majoris, 

TT Aquarii 

Ceres . 
t ('ephei, (R.) 




12.3 14.9,16.622.624.726. 

I 4.1 6.9, 8. 6! 1 5. 2 17.5 19, 

'..!.. 38.143.849.555. 

I I I 

38. 1 40.8 42.4 48.9 51. 1 33. 
. . ! . . 5f>-5 3o.<>. 5.t>40 
'47.950.5 52.1 58.3' o.2| 2. 
35.543.O1i3.043. 013.0 . 



833.034-537. 
015.5,25.0 8. 

8 26.3 28. 1 30. 

o 6.5 10.8 17, 

4 5<).9i I .•<') 4. 
016.0 . . 
38.5 10. 1 12. 



2 
o 

9 

8 



51 24.73 + o. 16 

o 35.52 — 0.83 

18 17.49 4 0.26 

37 43.87- o.ii 



338 
39 

39 
40 



• • • « 



. . .. I 2.2 9. 1 15.8 22 

;io.7 15017.427.330.533 

37.340.041.748.350.452 

. . . . 52.025.0 0.015 

. . . . 53.5 9.025.5 . 



228.7 . . . 
7 43.6 46. 1 50. 
559.2 0.9 3. 
5 9.0I . . . 



o 

5 



5 51.16 + 0.25 \ 3.38 + 3 

15 5 . 66 — 1 . 48 . . 4-3 

28 0.28 -\- 0.21 f 

. f i.8«;. 



44 i5.rK) -I- 0.41 

53 30.48 + 0.19 

5 50.42 -I- 0.05 -H 

15 0.42 f 2.0(9 

37 27.33 - 2.54 



16 51 I'^.i-; -V I. .IT) 

38. 15 — 0.01 

17 iS 21 . 14 — o.i»4 
17 37 47- »6 4- i.<v. 



41 . 18 5 54. "^2 4 II. Ml 

42 I 18 15 7.fxj -»- 0.^3 

42 ! 18 28 3.gi -r i\.y\\ 

43 30.72 ^ 3 'M 



+ 




22 


17 


44 


20.21 J- 


o.yt- 


f 




22 


17 


53 


34 ■ 89 ^ 


0.05 


+ 




23 


18 


5 


54. 7*'- 


o.ll 


f 




23 


18 


15 


6.74 -f 


0.2^ 


-H 




24 


6 


37 


29.03 -^ 


o."5 



E. 



3 45 



.630.034.636.738.911.243 4 48. 
.6 39.2 40.646.9 48.()'«;o.9 57. 1 58. 

t .' I 

.024.626.3:32.734.037.043.0,44. 

•2,36. 9 38. 4,44. 9 47. 1 49. 1, 55. 7 57 
■238.0,39.646. 1 48.3 50.4 57.i|58. 

. . . 54.0|28.o 2.0 38.0 1 2. c . 

.147. 7149. 455. 657. 659. 6 5.8' 7. 

I I 

.81 12. 014. 1 21.924. 5,27. 1. 35. (.'37 

.637.2138.645.O147.049.1 55.1,56. 

•I33.8 35.2!4i.5 43.5 45.<^5i.<^'53 

.1 45. 7'47. 2,53. 355-4 57.5 3.8i 5 

_ I I . 



052 
7 « 

747 
1 o 

7 I 



5 
I 

6 
o 

4 



55 38.99 \- o.c/> 

t8 48.8()4- 0.08 -^ 4.08 i-f 4 



4 10. o 



040. 
659. 

4 56. 

5 8. 



1 

3 
o 

I 



2 34.76 -f- 0.23 . . -f 

4 47.04 + 0.23 . • . + 

5 48.31 + 0.40-1- 6.04 1 + 
15 2.92— 3.o()' . 4 
27 57.584- 0.34 4- 5.98 -h 

32 24.504- 0.12 +- 5.86 l-h 

18 46.95' 4- 0.23, . . 4- 

29 43.564- 0.33 f 6.02 '4 

39 55.51 4- o. 181 . . 

50 32.14 + 0.34 . . 



I 



S.P. 



528.1,29.735.7,37.840.046.2 17.750. 
730.131.738.140.242.3,48.650.1,52. 
. I . , I 0.5 7.4 14.7 21.8 29. il . . . 



2 
7 



57 37.88^ ♦- 0.27 4- 5. 88 |-f 
1040.174- 0.364- 5.86 -h 
51 14.70— 0.39 . .14- 



2«> 
26 

83 
83 
92 
92 

92 

93 
93 
93 
94 
94 

94 
94 



18 55 43.30 -^65.I; 

19 18 53.23 ^ O.I) 
9 2 40. >2 

9 5 53- 10 . . 
18 5 54-63 — o.M 

iS 15 5-78 -f- 0.7: 
18 28 3.84 — D.o: 



• • • • 



116.2118.620.326.328.4130.4 36.6:38. 1 40.7 18 28.404- 0.30 +- 5.92 '4- 



r,6 

5.9^ 



18 32 30. 55 4- 0.07 

19 18 53. I 1 t- 0.0^ 
19 29 49.82 — O.O^ 
19 40 1.63 -t- tvo; 
19 50 38.42 

19 57 44.o<»- o.«\; 

20 10 46.47 4- o.«i> 

21 51 20.27 -^ 0.71 



21 18 34.66 4- o 



0; 



• I • 



3 ,28.9'35.5'39.3,53.858.7 4. 1 18. .^, 22. 2 28. 5 44 58.82- 0.35I 



■H 5.97 22 45 4.44 ^ 0.55 



3.8. Bisections at sets B and D. 
7.24. Bisections at Ci, Cr^, and C.v 
16.32.42. Wire B used. 

17. R. A. over three wires of set E and VII ; bisections at the same wires. 

19. Bisections at E.-, and VII. 

23. Bisections at C\ and set B. 

30. Bisections at Bi, d, C3, Ca, and D3. 

41. Wire A used. 

43. Seems one rev. wrong in N. P. D. 



OBSESVATIONS WITH THE TBANSIT CIRCLE. 



71 



3 

4 

5 

() 



8 

9 
lo 

II 

12 

u 

15 
U) 

17 

IS 

1') 

20 

21 



2() 
25 

3i 



34 

^0 



1" 
3'^ 

-II 

42 

43 
44 
-»- 
4^ 

47 
4"* 



N 



0. 



MICROSCOPE MICROMS. ' TELESCOPE MICROMETER. 



? Circle 
£ Division. 

mm 



316 36 

24 iS 

326 3S 

347 20 
312 14 





I. 




r. 


// 




II 


1 
.8 




14 


I 


10 


9 


.8 




II 


.6 




10 


■3 



II. I III. 



IV. 



Rev. 



// 



/( 



// 



II. I 

II. 4 

6.0 

8.4 



6.7 
5.2 

2.5 
4.3 



7.6 "* 4.0 



10 



316 36 
57 26 

f)2 52 

26 

II 

59 
312 

o 



54 

14 
10 



359 38 

150 38 

316 36 

62 52 

33^> 2 

5^)- 54 

312 14 



10 

9 

9 
10 

10 

9 
10 



7.9 
8.0 

7.0 

II. 6 

8.7 

10.4 

7.9 
9.4 

0.6 

28.3 

22.3 

I.I 

0.7 

27.4 
1.9 



6, 
6, 
6. 

9- 
7 



4 

3 
o 

3 

4 



I 



8.7 

5.9 
6.5 

27.7 
28.3 

19.5 
0.4 



2.5 
29.6 

0.0 
3.0 
2.6 

2.1 
2.0 
2.0 

26.3 

21.5 
15.0 
28.3 



1.2 i 25.1 



I 



27.4 
29.9 



I 



!3 3(j(j 6 I 10 29.7 I 28.5 



19.6 
26.1 



6.0 

4.3 
0.8 

2.5 
3.4 



0.4 

0.5 

29.3 
2.6 

1-4 

1.7 
1-5 
i.o 

26. 2 
20.9 
10.8 

25.3 

25.8 

22.0 
28.1 



23.6 . 25.4 



326 3S 

347 20 

59 54 
312 14 

306 6 

5 36 
5^ 34 

35 58 

22 20 



9.6 7.4 

7.6 6.1 

6.8 ; 6.3 

10. o ' 8.3 

5.2 ! 5.0 



5.0 
1.5 

0.9 
4-3 



59 
312 

47 

o 

143 
46 

151 

48 



54 

14 
10 

10 

^6 

8 

22 

5f> 



31 5S 

51 V^ 

325 46 

2.^4 40 

63 23 
2u6 34 



Barom. 



m. 



13.8 
4.2 

8.7 

2.8 

8.3 
10.3 
16.6 

13.2 

8.8 

10.5 

7.0 
10.8 

9 29.3 

13.1 

8.6 

7.4 
10.8 

II. 6 
6.4 



12.3 
3.0 
6.0 

0.0 

7.7 

9.0 

16.5 

"5 

9.5 

10.8 

7.4 
10.5 

28.7 

13.1 

7.8 

7.5 
9.7 

II. 4 
9.5 



4.8 
2.8 
1.4 
5.6 



0.8 ! 1.3 



7.1 

27.8 
0.2 



6.1 
27.0 

2.8 



24.3 23.8 



29- 5 1 
3.2 

8.8 , 

I 

5.0 
2.0 
30 . 

29.8 ; 

2.8 

20.5 

5-5 : 

2.5 ' 
1.9 I 

4.1 ' 
2.4 I 



3-4 
5.0 

II. o 

6.8 
2.4 

5.3 
1.0 

4.4 

21.3 
7.4 
3-5 
3.3 
4.5 

7.3 

1-3 ! 



External 
Therm. 



Attached 
Therm. 



26 
29 
26 
26 

23 



26 I 

27 I 
28 

25 
26 I 



25 . 
23 

25 I 

20 

38 
28 
28 
29 

26 
23 

25 

26 ' 
26 ' 

26 ' 

23 1 

27 I 

20 I 

27 , 

25 ; 
22 I 

26 ' 

23 ! 
29, 

24, 
29, 

24 ' 

28 I 

28 
28 i 

26 , 

22 ! 

24 i 
29 



I. 



482 
455 



560 
128 



372 



570 
601 

414 



I 



no 

345 



050 



254 
100 



940 



2. 



3. 



455 

382 



515 



485 
133 

601 

• • 

194 

534 
588 

972 
309 



150 

609 

372 



4. 



310 



719 
753 

388 



632 
451 



500 570 



755 ' 780 
. . I 150 
045 I 025 



020 



102 
390 

338 

188 j 

010 

018 

630 

153 
982 

225 I 



062 



883 

• • 

oSo 

728 I 

163 



029 



436 I 
108 , 



470 

380 
542 
395 

148 
516 

• • 

103 
436 
463 

840 
310 
014 



I 


748; 


• • 

• • 


■ • 

752 


1 

• • 


146 


148 


054 


163 , 

• • 


233 

• • 


• • 

• • 


445 
042 



472 
648 

568 

635 
590 

070 
100 



045 
380 



068 
049 
920 

758 
010 
020 
190 



560 
764 



692 

960 

587 



O O I 



510 
440 

575 
400 



t^o 



12.0 
12.0 
12.0 
12.0 



Apparent 
Zenith Dis- 
tance, South. 



o 
« 1.: 

•- § 

B 
c75 



(A 



o^i-^^^,- „ ' Apparent N. I ^2 

Kelraction.i r> V^* * 1 7i 

' P. Distance. I H 



C 

o 

4> 

u 
O 

U 



// 



// 



// 



132 12.0 



200 



310 

• • 

058 

785 
875 

655 
623 



11.5 

II. 5 
II. 5 

11.5 
"5 

11.5 
11.5 
11.5 

12.5 
12.5 

12.5 
12.5 

12.5 

12.5 
12.5 



316 39 8.7 

24 20 24.1 

326 41 I I. 5 

347 23 12.0 

312 18 2.5 



316 39 II. 5 

57 29 0.8 
62 54 48.5 
26 13 25.8 
II 5 1 1. 6 



+ 



52.7 

25.3 ' 
36.8 

12.6 ' 



405 '—I 1.6 



373 
369 
369 






52.6 
27.2 

48.4 

27.5 
10.9 



7 44 37.2 - 

75 27 10.6 4- 

17 46 55.9 + 

38 29 20.6 — 

3 23 22.1 — 1.6 



// 

2.2 
0.4 

2.5 
0.1 



59 57 20.1 373 

312 18 1.3 374 

o 13 34.3 • • 



+ I 36.1 
— I 1.2 
4- 0.2 



7 44 40.1 4- 0.9 

108 36 49.2 

114 4 58.1 — 0.1 

77 20 14.5 \-\- 0.1 

62 II 43.7 — 0.7 

III 5 17.4 -4- 0.3 

3 23 21.3 — 2.1 

51 19 55.7 - 06 



359 
150 
316 
62 
330 



42 
35 
39 
54 
4 



54.1 
44.6 

9.1 

49-7 

42.5 



328 - 
343 - 



03 
31. 1 
52.2 

47.9 
31-9 



50 49 15.0 
80 31 7.7 

7 44 38.1 

114 2 58.8 

21 10 31.8 



+ 



3.6 
2.8 
0.9 
0.6 

1.4 



59 57 22.0 
312 18 2.5 



364 + I 35.9 , III 5 19. 1 -I- 2.0 
. . — I I.I , 3 23 22.6 — 0.5 



12.5 306 9 6.9 372 — I 16.2 357 14 II. 9 -f 0.1 



585 



150 



II 
II 
II 
II 
II 



350 1 II. o 
052 1 1.0 

425 II. I 



326 41 8.8 
347 23 9.9 
59 57 18.2 
312 18 2. I 
306 9 5.1 

5 40 39-8 

58 37 7.1 
36 I 29.1 



+ 



36.6 

12.5 
36.0 

I.I 
16. 1 



17 46 53-4 
38 29 18.6 

III 5 15.4 
3 23 22.2 

357 14 10.2 



. . + 5.5 
. . 4- I 31.0 

370 -I- 40.5 



4- 0.6 

- 1-5 

- 1-7 

- 0.7 

- 1.3 

4- 4.0 



56 47 6.5 
109 14 59.3 
87 8 30.8 4-0.7 



103 



II. I 22 21 55.0 310 4- 22.6 73 28 38.8 — 3.3 



954 



no 
860 

414 



540 



II 
II 
II 

II 

II 
II 
II 
II 

II 

II 

II 

II, 

II 

II 
II, 



I 
I 
I 

I 
I 
I 
I 
I 

I 
I 
I 
I 
I 

I 
I 



59 57 17.3 
.312 18 2.4 

47 12 25.4 

o 13 35-2 

143 58 31 -5 
46 II 31.9 

151 24 46.3 

49 I 20.7 



31 

51 
325 49 
2S4 43 

38 10 



58 20.2 

49 32.3 
27.2 

1.7 

7.5 



63 31 45 o 
206 36 23.5 



418 4- I 37.1 
. . ,— I 1.8 

. . ,4- I 0.8 

417 4- 0.2 

419 — 41.0 

. . |-H 58.7 
419 - 30.7 

. . 4- I 4.7 

. . 4- 35.2 

418 -H I II. 5 
428 '— 38.4 

437 '- 3 31.6 
. . |4- 44.5 

438 I4- I 53-1 
. . ,4- 28.3 



III 5 15.6 
3 23 21.8 

98 19 47.4 

51 19 56.6 
87 8 30.7 
98 18 51.8 

79 41 5.3 
100 8 46.6 

83 5 16.6 

102 57 5.0 

16 55 10. o 

335 45 51.3 
89 17 13.2 

114 39 59.3 
24 29 29.4 



- 1.6 

- 0.1 

- 2.4 

+ 1.8 

4- I.I 

+ 0.3 

4- 0.1 

- 2.7 

4- 0.4 
4-15.0 

- 1.8 

- 0.5 

- O.I 



I 



4- 



3.9 
1-9 



/'or summary of the elements of reduction see page 3. 



No. 


MOONS— 


Parallax. 


Semi-diam. 


1 

: 8 

' 30 

1 

1 


1 n 

— 46 17.8 

— 46 14.6 


1 n 

4- 15 2.3 
4- 14 50.1 



64 



OBSERVATIONS WITH TUS TRANSIT CIRCLE. 



DATE. 



1868. 
July 14 



15 



16 



17 



6 

3 



5 
6 

7 
8 



10 
II 
12 

13 

14 



48 

49 
50 



OBJECT. 



1 s Pcrsei 

2 y Eridani 

3 ' y Tauri 

4 f Tauri 



>' 
a 

b 
i 



Sun I, N. 
Sun II, S. 
Leon is . 
Ilcrculis 
Ophiuchi 



t 



Draconis . 

Draconis 
V* Draconis, (R.) 
y Draconis, (R.) 
ft Sagittarii . 



15 
i6 

17 i /^ 

18 ' ji 



19 
20 

21 

22 

23 



24 I 
25 

26 yi 

27 ! 7 

28 15 



29 

I 30 

I 32 ;« 

33 ^ 






a 
u 

/^ 
6 



34 

35 
36 

37 
38 
39 

40 

41 
42 

43 
44 



45 
46 

47 « 



C 



Ursac Minoris 
Moon II 
Orionis 
Tauri 



Sun I, S. 
Sun 11, N. 
Polaris, S. 
Polaris, S. 
Serpentis 



P. 
P. 



Saturn I, S. 
Saturn II, N. . 
Scorpli . 
Draconis . 
Draconis . 

Herculis 
Ophiuchi, (R.) 
Herculis 
Herculis, (R.). 
Ophiuchi . 

Ophiuchi, (R.) 
Draconis . 
Herculis . 
Draconis . 
Sagittarii . 
Ursa; Minoris . 

Sun I, N. . 
Sun H, S. . 
Serpentis . 
Saturn, Ring I, S. 
Saturn, Ring II, N 



Ophiuchi 

Herculis 

Scorpii . 

Ophiuchi 

Herculis 

Ophiuchi 



1 . 




k« 






ht. 


u 


tc 


Obs 


Wei 



T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 

N. 
N. 
N. 

N. 
N. 
N. 
F. 

N. 

N. 
N. 

N. 
N. 
N. 

N. 
N. 
N. 
N. 
N. 

N. 
N. 
N. ■ 

N. 

N. ; 

E. ; 

E. 
E. 
E. 

i:. 

E. 
E. 
E. 
E. 1 
E. 
E. I 



SECONDS OF TRANSITS OVER WIRES. 



I. 



X 

3 

3 
3 



II. 



III. 



IV. 



2 
2 

3 

I 

I 

4 



3 

3 

3 
2 



0.7 

3.5 
28.6 

6.1 



4.1 
20.0 

• • 

,1 



3-7 
6.2 

31.3 

8.7 

6.8 8.6 
22.724.5 



5-5;i2.7 
7.6114.0 

32.9,39-2 



V. 



VI. 



VII. VIII 



I5.i;i7.4 

16.1118.2 

41.343.4 



10. 3. 16. 8 i8.9'2i.i 



50.7:53.3 



54.9 



15.2 

31.0 

5.8 

I.I 



30.933.835.242.0 



33.3 
37.3 

39-7 
, 4.7 



37.539.9 
44.448.6 

33.1 
46.2 

9.2 



43.9 
7.6 



40.8,43.6 

24.1I26.6 

8.1 II. I 



I 7.3 
22.9 

,35.0 

• • 

28.9 

2 14. 1 
2 . . 

2 I 0.0 

4 14.5 
4 ; 9.3 



4 34.1 
3 . . 

3 ' . . 

3 52.955.5 



10. o 

25.7 
51.0 

• • 

31.5 



45.1 
28.1 

12.7 

II. 6 

274 

48.5 

2.0 

33.0 



16.9 18.5 
24.0 



2.9 
19.8 

r6.6 

37-3 



4.0 
23.1 



49-9 

5.5 

39.7 
56.2 

15.8 



17 
33 

7. 

3 
44 

53 
II. 

46. 

59 
18. 



24.6 
24.5 



26 
26 



IX. 



29.4 
28.7 
49. 851. 454. 1 



27.6 



26.1 
41.8 



19.7 

35.4 
10.0114.3 

5.4I11.7 
46.6;53.4 



29.332.0 



56.5] 6.5 
16.933.8 

59.8 
12.5 

26.8 



53.1 
2.7 

20.2 



51.8 



34.2 
19.8 



18.3 
33.9 

■ • 

39.0 
39.2 



26. 1 
1 1.0 
36.1 



53.9 
36.2 

22.0 



43.014.050.0 0.0 
56.0* 2.6 

38.3,44.5 
24.331.4 



20.3 
36.0 

• • 

15.0 
41.2 



28.2 
13.2 

40.5 



22 

38 

51 
43 



629.2 

44.9 
40.0 



49-4 



27.8 

43.5 

15.9 
13.2 

55.0 

9.2 
38.0 



30.5 

46.3 

18.5 

15.8 
57-9 

13.1 
45.2 



14.9 18.8 
28.4 31. 1 



25. <» 

4.3 
46.1 

33.0 

30.8 
46.6 

37.5 

• • 

50.9 



20.7 32.243.8 



39.3 



3 33.0 



I 3.8 
,39.2 

;3i,4 
41. 1 
I 6.8 



10. o 

125.6 
29.1 

' 7.4 



57.2 



35.837.4 



40.243.0 



6.3 
46.5 
34.3 
45.4 

9.5 



12.6 
28.1 
31.6 
10. 1 



,55 
32 
i 8 



o 

33. <^ 
.39.8 



59.4 

35.5 
10.5 

37.2 

42.5 



7.9 
50.7 

36.1 

47.7 
II. I 

33.7 

14.2 
30.1 

33.1 
1 1. 9 

17.5 



47.2 



3.4 
44.1 

14. 1 
7.6 
43.0 
57.7 
17.7 
9.7 

20.5 
36.6 
39.2 

• • 

19.6 



49-9 



5.6 



30.4 
15. 421. 8 

44.857.7 



35.537.3 
32.6 



55.2 



52.4 



6.6 



0.3 



7.8114.0 



46.448.455.3 



44.750.6 



1.6 

37.3 
12.4 

39.1 
44.0 



10.5 
44.0 
18.3 
46.9 
50.2 



16.4 

13.5 

45.4 
I.I 

19.9 

43.0 



18.424.7 
18.6136.0 

47.654.5 



23.5 

I.I 

II. o 

2.3 



8.0 
7.0 

48.7 
36.0 

33.4 
49-3 
53.5 

■ • 

53.4 
40.0 

■ • 

26.0 
6.4 

17.8 

5.6 



22 

38. 
41 



4.1 
22.0 
18.0 



825.331.7 



21.8 

52.9 

13.5 
46.1 

20.5 

49.4 

52.3 



14. 1 
28.6 

53.3 



40.8I47.2 



43.2 

23.9 

54.7 
16.5 

48.3 
22.7 

52.2 
54.3 



49.4 
28.9 

26.0 

0.9 

25.6 

55.3 
28.8 

0.1 
0.5 



15.5 
56.9 

26.2 
40.2 
56.2 
16.5 

30.3 



18.3 
59.8 

28.8 
47.0 
59-2 
20.5 

33.1 



Mean wire. 



CORRECTIONS. c s • 
Apparent R. ^'^ 1 

^, I Ascension. t" ^ ' 
Clock I 5! - , 

— 



Inst 



Clock 
appar'nt. adopted. 



I 



m. 
46 

52 
12 
21 

40 
42 
13 

9 

18 



15 
16 

41 

lb 

17 

33 

5 

3 

44 



s. I 
.04 + 
.10 -f 

.33 + 
. 98 -+- 



s. 

0.25 
0.63 
0.41 

0.38 



.37-^- 


0.37 


.161 + 


0.37 


.64 + 


0.38 


.27-1- 


0.42 


.34 + 


0.72 



s. 
24.26 
24.28 

24.30 
24.31 



27 53.27 — O.OI 

38 11.25!— 0.541 

44 46.44- 1.47. 

53 59.38- 0.39 

6 17.981+ 0.69 

15 41.48 — 6.31 

30 5390+ 0.48 

8 3f>.32 -f 0.71 

18 22.04 -h 0.35 

44 20.391+ 0.43 
46 36.io;-f- 0.43 
II 14.53 +21.60 
II 14.78l-f-21.60 

44 41.19 ■»- 0.59 

50 27.05,-1- 0.81 
50 28.26H- 0.81I 
55 13.16 4- 0.821 
22 40.45— 0.34 

28 43.69 — 0.71 

38 49.82 -h 0.21 



s. 
-24.29 
-24.29 
-24.30 
-24.30 

-24.44 

;-24.44 

-24.54 

. — 23.82 

|-23-83 

-23.83 

,-23.84 

1-23.84 

-23.85 

-23.86 

-23.87 

. . 1-25.35 
25.38 -25.37 



2J.59 
23.83 

23.79 



23.85 



-25.29 



25.69 



-25.38 

-25.47 

-25.47 
-25.69 

-25.69 
-2579 



. . -25.79 

- . -25.79 

25.85 -25.80 

. —25.82 

. . 1 — 25.82 



h. m. s. s. ' 

.3 45 51 00— 0.03 

3 51 52.44 + o.oc 

4 12 17.44 -I- 0.02 
4 20 55.08 + 0.03 

7 39 5330 . . 

7 42 9.0() 

10 12 41. 4S r o.<:>2 

17 8 39.87 ■+■ O.OI 

17 18 21.23 — 0,04 

7 27 29.43 -f- 0.13 

*7 37 46.42 - 0.21 

17 44 21.13 "»- 0.24, 

17 53 35.14+ 0.05 
16 6 54.81 — 0.03 

18 15 ii.3o-h 1. 01 

4 30 29.03 —70.14 

5 8 ii.6<) 4- 0.02 
5 17 57.01 — o. 10 

7 43 55.35 - • 

7 46 11.06 . . 

I II 10.44 f 0.2f^ 

I II 10.69+ 0.54 

15 44 15. 9<^- o.ii 

15 50 2.07 . . 

15 50 3 28 . . 

15 57 48.18 -H 0.10 

16 22 14.29 — o.6'> 
16 28 17.16 — o.oS 



— 25.83 16 38 24.204- 0.05 



9 5.58 + 
18 46.34 + 



0.20 . . 
0.87-25.94 



33.536.5 
49.1 51.9 



51.0 
30.5 



2.4 
27.7 
57.1 

30.4 
2.1 
2.2 



53.6 
33.2 



4.9 

31.4 

59.9 

33.1 

5-3 
4.6 



16.29 + 
13.26 — 

+ 



29 
38 

4t 45.30 
54 0.91 
6 19.89 4- 

15 43.66 — 

I 

48 23.01I4- 

50 38. 6S ^- 

44 41.28 -H 



0.22 



0.70I 
0.36 

O.OI 

0.84 
7.99 



-25.87 

■ 

-259 



50 20.33 
50 21.76 



+ 
+ 



0.37 

0.37 
0.47—25.67 

0.59 
0.59 



7 52.70+ 0.51 -25.38 
16 I3.54I4- 0.15I . . 
21 46.24 -h 0.65—25.31 
30 20.52 4- 0.55 —25.34 
38 49.544- 0.24 
51 52.27 +- 0.44-25.39 



-25.85 
-25.85 

-25.86 

-25.87 
-25.87 

— 25.88 
-25.89 
-25.92 

— 26.08 

!— 26.08 
-25.40 
-25.40 
-25.40 

-25.41 
-25.42 

-25.42 

-25.43 
-25.44 
-25.44 



I 



^7 8 39.93 + 0.07 
17 18 21.36 -h 0.09 

17 28 50.65 o.(x> 

17 37 46.69 4- 0.0^? 

17 41 19.79 o.ot^ 
^7 53 35. oS — o.o(» 

18 5 54.84 0,00 
18 51 9.75 — 0.30 

7 47 57.30 . 

7 50 12.97 . . 
15 44 16.35 + 0.26 
15 49 55.52 . . 

15 49 56.95 . • 

I 

16 7 27.80 — O.OI 

16 15 48. 27 4- 0.2^ 

16 21 21.47 — 0.<» 

16 29 55.64 — 0.14 

16 38 24.34 4- 0.20 
16 51 27.27 — 0.02 



8.15. Counting clock one second wrong. 
12.21.28. Bisections at sets B and D. 

16. Counting clock probably two seconds slow. 

35. Bisections at sets B and D. 
42.43.44. Wire B used. 



OBSEBVATIONS WITH THE TRANSIT CIBCLB. 



65 





1 
MICROSCOPE MICROMS. ■ 


TELESCOPE MICROMETER. 


c c 

'S 






1 











«^ 


Circle 
[)i vision. 


- 


- - — 









■ 




1 
1 








A Si 


Apparent 
Zenith Dis- 


•S.2i Refraction. 


Apparent N. 
P. Distance. 


c 


^"* 1 




/, 


1 
r. 


I. 


II. 


III. 


IV. 


Rev. 


I- 1 

1 


2. 


3. ' 

1 
1 


4. 


5- 


c 

It 


tance, South. 

* * f 


E 


m 


1 It 


t 1 > 


t" 

.2 




r I 


1 


1 




1 

99 


1 


7 20 


6.6 


7.7 1 


0.0 


29.5 


22 


1 

• • 


089 




000 , 


* • 
• 


9.7 ' 


7 24 


19.9 


. . 4- 


7.1 


58 30 48.2 


— 0.2 


o 


52 42 


6.6 


7.9 


29.0 


0.3 ' 


25 


• • 1 


282 




146 ' 


• • 


9-7 


52 45 


31-2 


260 -h 


I II. 4 


103 53 3.8 


— 2.2 


3 


23 32 


9.1 


9.1 


I.O 


1.4 ; 


27 


• • 


415 




286 


• ■ 


9.7 , 


23 34 


57.0 


. • ;+ 


23.7 


74 41 41.9 


- 0.3 


4 


H) 56 


9.9 


10.5 


2.9 


2.7 


21 


• • I 


840 




762 


• • 


9.7 


20 


20.5 


249 '+ 


19.7 


71 7 1.4 


4- 1.0 

1 


•> 


17 s 


8.8 


9.0 


I.I 


1.0 


22 


650 


650 




• • 


• • 


9.6 


17 12. 


10.3 


. . -h 


16.5 


68 18 48.0 


~ ^-5 




17 40 


12. 1 


II. 6 


3.3 


3.3 


24 


• • 


• ■ 


. . 1 


193 


208 


9.6 


17 43 41.5 


180 


f 


17. 1 


68 50 19.8 


- 2.61 


s 


24 18 


12.5 


12.9 < 


4.6 


3.5 


29 


• • 


140 




033 


• • 


9.6 


24 20 


27.1 


243 -1- 


24.6 


75 27 12.9 


4- 0.9 


•) 


62 52 


5-3 


7.8 


29. 1 


28.0 


27 


• • 


923 




741 


• • 


9.6 


62 54 


51.9 


. . 4- 


I 45.4 


114 2 58.5 


+ o.6» 


lo 


346 26 


10.6 


II. 7 


3.5 


2.5 


24 


1 
• • 1 


810 




750 


• • 


9.6 


346 29 


34.61 


• • *" 


— 


13.0 


37 35 42.8 


i 
-f 0.2 ' 


11 


330 2 


8.0 


9.0 


1.8 


0.1 


28 


« • 


270 




130 


• • 


9.6 


330 4 45- 1| 


• • " 


— 


31.2 


21 10 35.1 


- 1-9 


12 


213 14 


4.0 


8.0 


0.5 


27.4 


20 


1 

« • 


023 


274 


no 


• • 


9.6 


•213 18 


50.6 


. . 4- 


35.6 


17 46 55.0 


- 1.8, 


13 


»92 34 


3.6 


7.9 


0.7 


26.1 


28 


310 


143 




150 1 


068 


9.6 , 


192 36 46.7 


• • 


f 


12.1 


38 29 22.4 


- 1.7 




5<) 54 


6.5 


8.8 


0.0 


29.0 


25 


1 • • 


798 


• • 


750 ' 


• • 


9.6 ' 


59 57 


22.4 


247 


f 


I 35.5 


III 5 19. I 


-h 2.1 


17 


47 10 


9.7 


TO. 7 


1.6 


1.2 


22 


• • 


• 


974 


• • 


840 


9-3 


47 14 


3-2 


200 - 


4- 


57.9 


98 21 22.3 


- 2.5 


IS 


10 20 


9.6 


10. I 


2.1 


1.8 


23 


120 


032 


• • 


881 


898 


9-3 


10 24 


2.8 


■ • " 


f 


10. 


61 30 34.0 


— 1.2 


»•> 


17 50 


9.5 


9.3 


1.5 


1.5 


25 


044 


952 


_ 


■ • 


• • 


9-3 


17 53 


33.6 


1 
• • " 


4- 


17.3 


69 12. I 


- 2.6 


2. J 


17 iS 


13.2 


12.5 


4.5 


4.2 


22 


• • 


• ■ 




630 


598 


9.3 


17 22 


4.4 


• • ' 


4- 


16.8 


68 28 42.4 


- 2.6t 


21 


307 28 


71 


9.3 


1. 1 


1.2 


27 


500 


503 


617 


• • 

1 


• • 


9-3 


307 30 


52.1 


184 - 


— 


I 9.3 


358 36 40 


- i.o| 


21 


33 58 


9.5 


9.0 


0.6 


28.9 


! 29 


962 


930 




815 


745 


9.3 


34 


18.7 


250 


■1- 


36.6 


85 7 16.5 


+ 1.3; 


24 


5<> 52 


9-5 


9.7 


1.5 


0.3 


21 


652 


• ■ 




• • 


665 


9.3 


56 56 


23.2 




4- 


I 23.1 


108 4 7.5 


- 0.8 


-5 


56.52 


9-5 


9-7 


1-5 


0.3 


22 


■ • 


848 


1 


760 ' 


• • 


9-3 


56 56 


5.8 




■h 


I 23.1 


108 3 50.1 


- 0.8 


20 


5S 14 


9.9 


10.7 


2.0 


0.5 


20 


578 


578 




489 


422 


9-3 


58 18 


40.1 




-h 


I 27.6 


109 26 28.9 


4- 0.2 1 




37 2 


7.2 


7-5 


1.2 


28.1 


27 


' . . 


735 




637 ' 


• ■ 


9-3 


337 4 


53.6 


256 - 


— 


23.0 


28 10 51.8 


4- 0.31 


JJ 


32<) 48 


7-4 


7-4 


1.2 


28.9 


28 


798 


751 




670 , 


725 


9-3 


329 50 


36.8 




— 


31.5 


20 56 26.5 


— 1.0 


2') 


359 3S 


II. 2 


lb. 2 


3-2 


1.5 


27 


; 570 


525 




417; 


400 


9.3 


359 40 


53.6 




— 


0.3 


50 47 14.5 


4- 0.8 1 


1<> 


IhO 40 


8.0 


8.6 


0.9 


27.0 


31 


188 


• • 


100 


060 ' 


031 


9.3 


150 42 


0.5 




— 


30.5 


80 24 51.2 


- 0.9; 


11 


5 ^ 


10. 1 


10. 1 


2.6 


0.6 


32 


616 


520 




422 


400 


9-3 


5 7 


37.4 


• • • 


— 


4.9 


66 14 3.5 


— 0.31 


32 


155 3^> 


7.5 


7-7 


0.3 


27.0 


25 


no 


049 




990 


865 


9.3 


155 39 


34.5 


260- 


— 


24.6 


75 27 II. 5 


- 0.3 


v^ 


f)2 52 , 


9.7 


10.9 


1.9 


0.9 


27 


752 


715 




612 


581 


9.3 


64 54 


50.7 


1 • • 

1 


4- 


I 45.9 


114 2 57.8 


- O.I , 


-M 


153 44 


10. 


10.7 


3.1 


29.9 


1 
29 


015 


012 




914 


829 


9.3 


153 46 


31.3 




— 


26.8 


77 20 16.7 


4- 0.5 


V 


330 2 


8.5 


8.^ 


2.3 


0.1 


28 


206 


261 




198 


241 


•^•3 


330 4 43.5 




— 


31-3 


21 10 33.4 


- 3-3 


V. 


II 2 


9-4 


9-7 


' 3.0 


0.3 


26 


• • 


250 


179 


075 


• • 


9.3 


II 5 


14.3 


270 


4- 


10.6 


62 II 46.1 


— 0.8 


1/ 


347 2<> 


II. 1 


10.7 


3.8 


, ^'^ 


26 


245 


, "»5 




039 


085 


9-3 


347 23 


13.9 


, . 


— 


12.2 


38 29 22.9 


— 0.9, 


^' 


5<> 54 


8.1 


9.0 


0.3 


\ 29. 1 


25 


846 


755 


1 . . 


1 962 


960 


9-3 


59 57 


19.8 




4- 


I 34.1 


III 5 15. I 


- 1-9 


3'^ 


312 14 ' 


9-4 


9.6 


3.3 


1.6 


22 


858 


868 


862 


1 858 


860 


9-3 


312 18 


4.4 


292 


— 


I 0.1 


3 23 25.5 


- 1. 31 


40 


17 28 


II. 


10. 1 


3.1 


1 
3.5 


21 


950 


010 


1 , 


• • 


• • 


9.6 


17 32 


18.6 


! . . 


-h 


17. 1 


68 38 56.9 


— 2.6 1 


41 


18 


II. 


9-5 


2.5 


4-3 


1 23 


t • • 


• • 


1 


355 


298 


9.6 


18 3 


55.6 


! 251 


-h 


177 


69 10 34.5 


- 2.6 


42 


33 5S 


8.7 


7.8 


1.0 


' 28.8 


20 


• • 


082 


1 

1 • • 


t 072 


• ■ 


10. 1 


34 


20.4 




4- 


37.0 


85 7 18.6 


4- 3.5 


43 


5^» 54 


3-8 


5.2 


, 27.2 


! 23.7 


20 


• • 


640 




• • 


• • 


10. 1 


56 56 


17.2 


1 


4- 


I 24.0 


108 4 2.4 


- 0.8, 


41 


5^> 54 


3.8 


5-2 


27.2 


23.7 


21 


■ • 


• • 




795 


1 • • 
1 


10. 1 


56 55 


56.7 


1 


4- 

• 


I 23.9 


loS 3 41.8 


- 0.8 


45 


42 12 


7.2 


8.3 


1.0 


29.2 


31 


■ ■ 


• • 




1 765 


640 


10. 1 


42 13 


50.8 


. . 


4- 


49.7 


93 21 1.7 


— O.I 


4^' 


3«;2 12 ' 


7.2 


7.0 


2.0 


29.4 


24 


• • 


050 




000 


• ■ 


10. 1 


352 15 


49.7 


290 




7-4 


43 22 3.5 


4- 5.4 


47 


64 56 


5.3 


6.2 


27.8 


1 27.8 


23 


995 


940 




1 955 


892 


10. 1 


64 59 


52.5 


' . . 


4- 


I 56.8 


116 8 10.5 


4- 1.6 


4^ 


4') 6 


5.3 


5.2 


28.4 


25.2 


1 


• ■ 


1 

• ■ 


235 


1 

• • 


1 


, 10. 1 


49 10 


19. C 


V . . 


4- 


I 3.4 


100 17 44.2 


°?' 


4'i 


359 38 


7.8 


7.8 


2.0 


0.0 


19 


735 


715 




815 


795 


1 10. 1 


359 42 


54.4 


k . . 


— 


0.3 


50 49 15.3 


+ 1.8 1 


50 

1 


29 14 •< 
Rarom. 


8.5 

« 


8.2 


0.2 

1 


1 29.5 


23 


• • 


315 


1 


! 225 


• ■ 


10. 1 


29 18 

1 


0.8 




4- 


30.9 


80 24 52.9 
MOON'S— 


4- 0.8 


No 


1 

External | A 
Thenij. 


Lttachet 
Therm. 


i 




















^0. 




































k 










in. 





• 































Parallax. Semi-diam. 


»9 


29.920 


98 


.8 


90.2 



































For summary of the elements of reduction see pa^e 3. 



( ' ■ 



9 



66 



OB8EBVATION8 WITH THE TRANSIT CIRCLE. 





1 

• 




• 






tM 




Xi 


. 


DATE. 


mbe 


OBJECT. 


t 






3 . 




, .a 


U 




y. 






^ 



SECONDS OF TRANSITS OVER WIRES. 



1 868. 
July 17 



18 



21 



22 



M 

15 
16 

17 
IS 

19 
20 

21 

22 

23 
24 

25 
26 

27 

28 

2g 
30 

31 
32 

33 
34 
35 



37 

38 

39 
40 

41 
42 

43 
44 
45 
4^ 
47 

48 
49 



d 

f 

a 



I 
2 

3 
4 

5 

6 

7 
8 ,? 



9 
10 

II 

12 

13 



i) 
a 



a 

s 

'/ 
e 

a 

b 

a 

u 

/ 

7 
I 

51 

o 



a- 






Hcrculis . 
Ursac Minoris 
(lerculis . 
l^rsac Minoris 
Polaris . 

Ceti . 
Tauri 
Orionis 

Sun I. N. . 
Sun 11, S. . 
Polaris, S. P. 
V'irginis 
Virginis 

Bootis . 
l/rs;c Min., (E 
Herculis, (R.) 
Ophiuchi . 
Ophiuchi, (R.) 

Draconis, (R.) 
Draconis 
Draconis, (R.) 
Scrpentis . 
Aquil;e . 
Cephei, S. P. 

Sagittarii . 
Irene 
Aquilae . 
Draconis 
Ilesperia 
Capricorni . 

Sun II, S. . 
Polaris . 
Orionis 
Tauri 
Orionis 



36 ' e Orionis 



a Orionis 



a 

(J 

V' 

} 

6 



s 



K 

a 



Sun I 
Ophiuchi 
Draconis . 
Draconis, (R.) 
Draconis 

Sagittarii . 
Ursje Minoris 
Irene 
Aquilx . 
Aquil;e . 

Aquilsc . 
Aquilx, (R.) 



. I 



E. 
E. 
E. 
E. 
T. 

T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 



. T. 

P.) , T. 

. T. 

. , T. 

• I '^• 

. T. 

. , T. 

Ti 
• 

. T. 
. T. 
. T. 



T ' 

T. 

T. ' 

T. 

T. 

T. 

E. 
T. : 
T. 
T. 

T. 

T. 
T. 



. T. 
. T. 
. T. I 

T ' 
T. 

T. 
T. ; 
T. I 
T. 
T. 

T. 
T. 



CORRECTIONS. 



I. II. III. IV. i V. VI. VII. VIII IX. Mean wire. Inst. 



Clock ] Clock 
appar'ni., adopted. 



Apparent R. 
Ascension. 



I 



ST 



c c 

5^ w 



56.559.6 1.5 8. 611. 1 13. 721. 1 22.826.1 
- . I . ■ 37.f>53-2 7.522.337.7 .... 
0.7 2.8 4.9 7.1 9.3 . . 

I . . . . ,30.0 6.040.014.049.0 . . . . 
. . . . . 10.036.0. . . 22.045.0 . . . . 

I I > 

40. 743. 4,44. 851. 053. 255. 3 1.5 3.1 5-5 
35-3 38.1 39-5 46.048. 1 50.256.858.3 1.0 
26.028.5 30.236.238.340.446.648.1 50.7 



12.4 15.0 16.823.325 
127.730.632.238.841 
]..,.. ,10.047.0 . 
,30.1 32.8 34.3'40.6 42, 
114.0 16.5 18.0,24.1 26, 



3 
3 
3 

* 

3 



39. 1 '41. 
40.059. 

54.757. 
|34.9 37. 
1 5.7i 8. 



943.549.952. 
o II. 055. 8 10. 

258.9 5.3 7. 
839.346.148. 
3 9.5 16. 1 18. 



41.8 48.7 53.010.3 i6 

g.4|i8. 1,23. 343. 249 
43.6.47.7150.4 0.2 3. 
46.2:48.750.256.558. 
18. 721. 322. 929. 1 31. 

.... 9.026.044. 



.727.734.335.838.6 
.043.249.651.254.2 
. 59.037.0 • . • • 

644.750.952.455.0 

.328.334.435.838.5 

154.2 0.7 2.4 5.1 
826. oil. 722. 641. 8 

4 9.5 15.8 17. 520. 1 
350.557.158.8 1.6 
220.426.628. 1 30.7 

1 21. 438. 412.549. 8 
756.5 16. 421. 530.0 

2 6.5 16.4 19.022.9 

5 0.5 6.7 8.310.7 

233.339.440.943.6 
o 2.019.0 . . 



20 . 9 23 . 8 25 . 6 32 . 4 34 . 6 36 . 9 43 . 8 45 . 5 48 . 3 

15.2 18.1 19. 9 26. 8 28. 9 31. 1 38.1 39. 843. ii 

8.2,10.8 12.3 18.4 20.422.528.630. 1 32.6 

33.9:41.545.7 3.8 9. 715. 333-538. 345. 4 

16.819.320.91 ■ 

0.9' 3.6 5.2 II. 5 13.5 15.621 .8 23.526.0 

I . . I . . 10.4 12.4 14.4 16.5 18.7 . . . . 

14.5.56.5 1. 049. 012.0 

59.3- 1.9 3.4 9.6 II. 6 13. 720. 021. 5 24.1 
43. 546. 448. 255. 257. 559. 8 6.8 8. 511. 4 
35.. . . ;i3.7'5.7 17.8 . . . . 28.1 



118 



40.843.6; 



621. 3| . . I29. 031. 033.0 . 
49.451.953.459.6 1.6 3.8 9. 911. 514. 2 

i 

45.248.149.5 

38.o;40.642. 1 48.4 50.5 52.658.7, 0.4 2.9 

13. 220. 3 24. 5 41. 2 47. 6 53. 1 9.9 14. 021.0 

. . I . . . . I . . 28.836.349.454.4 3.0 

15.6 19. 522.1132. 1 35.338.648.250.755.1 



41. 344. 145. 852. 454. 556. 6 3.3 4.8 7.6 

... 6.041.5I . . 51.025.0, . . . . I 

10.8 13. 9 15. 6 22. 5 24. 9 27. 3 34. 2 36. 038. 7 

1IO.3 13. 014. 6 20. 9 23. 025. 1 31.332.935.5 

.40.643.144.650.752.854.9 0.8 2.5 5.1 



37.3.40.041.447.649.751.757.959.4 2.0 
10. 7113. 3 14. 9 21. 023. 1 25.131.232.735.4 



m. 

57 
o 

9 
15 
II 

17 

28 

8 



s. 

11.22 ^- 
7.73■- 
4.9^),^ 

39.<;0|- 



s. 
0.27 



s. 



2. 
o. 

4 



58.52-17 



59 • • 
41 -25.52 

82 



m » 



s. 

-25.45 

--25.45 
-25.46 

-25.50 

—27.10 



h. m. s. s. 

16 56 46.04 ^ 0.21 

16 59 39.6<>— 0.22 

17 8 39.91 f o.utj 

18 15 9.46— 0.3O 
I 11 13. 60V 2.09 



53.1714- 0.61 — 
48. 14 -f- 0.41 — 
38.33 + 0.61 — 



52 25.51 -H 0.37 

54 40.94+ 0.37 
U 22.92 -I-18.91 

18 42.60-}- 0.62 

28 26.21,-f- 0.54 

48 52.10 -I- 0.38 

o 10.97 — 3.62 

9 7.38 -♦- 0.16 

18 48.27 -+- 0.74 

29 18.18 + o.iS 



27.07 , — 27.10 

27.22 —27.24 

27.24 —27.26 

. . -27.37 

. . -27.37 

. . —27.58 

27.51 -27.59 

27.54 -27.60 



— 27.53 —27.60 
. . -27.74 

27.75 
27.75 
27.76 



I 17 26.68 

4 28 21.31 

5 8 II.()^^ 



0.03 

0.r)2 

0.01 



7 

7 
I 

13 
13 



51 

54 
II 

18 

27 



58.51 

13. <M 
14.25 

15.63 
59.15 



2.32 
0.r)7 



— 27.76 — ; 



38 15.78— 1.30 
44 49.791— 0.86 
54 3.32I- 0.46 
14 58.48 -I- 0.56 
28 3i.i6l-»- 0.61 
37 43.82 -h 9.85 



27.86 
■27.84 j- 



27.76 
27.76 

■27.77 
27.78 

27.79 
27.80 



27.85 -: 



27.80 
27.81 
27.82 
27.84 
27.86 
II 13.51;-}- 0.64—27.89 —27.86 



47 34.644- 0.77 
57 29.00-1- 0.78 . . 
19 20.43 -h 0.52—27.94 
49 9.68 — 0.70 



4 29.15 



+ 0.61 



• • 



13 48 24. 88 — o. 10 

16 59 39.61 — o. 17 

17 8 39.70 — o.o() 
17 18 21.26 -»- 0.01 
17 28 50. 6<.) — 0.04 

17 37 46.72 -H o.iS 

17 44 21.17 -}- 0.31) 

17 53 35.o^)'H- 0.04 

18 14 31.26 4- O.iXf 
18 28 3.9.S 4- o.oi) 

6 37 25.87 ^ 1.35 

18 47 7.61 4- 0.03 

18 57 1.97 

19 18 53.13 4- 

19 48 41.14 -t- 

20 4 1 . 9<j, 
20 10 46.29 4 



o. 13 
0.33 



O.O' 



6 14.48 4- 0.33 
II 35.08—16.07 

8 11.68 4- 0.51 
17 57.48-1- 0.23 
25 15.76 4- 0.45 



29 3 I . 00 
48 I . 70 



4- 0.46 
4- 0.40 



0.40 

0.45 
0.26 

0.39 
0.42 



7 58.30-1- 
28 50.47 -f- 
37 47.20- 
44 22 . 70 — 

53 35.24- 

5 54.494- 
15 16.00 — 

53 24.88 4- 

59 22.96,4- 

l3 52.79 4- 



0.30 . . j— 

0.37 — 0.21 — 

0.60 . . — 

1.36 . . — 

0.06 . . — 



0.61 

6.35 
0.67 

0.36 
0.43 



29 49.67 4- 0.51 
44 23.05 -f 0.22 



—0.29 — 



— 0.29 I 

— 0.19 ' 

I 
r 

— 0.30 



0.55 
0.47 

0.47 
0.46 

0.46 
0.46 

0.41 
0.23 
0.23 
0.22 
0.22 

0.21 
0.21 
0.20 
0.20 
0.19 

0.19 
0.18 



I II 18.46 4- 3.?^5 

5 8 11.72 — o.ui> 

5 17 57.24 — 0.03 

5 25 15.75 - 0.22 

5 29 31.00— o.o(> 
5 48 1.64 — 0.04 

8 7 58. 19' 4- 07. 43 
17 28 50.61 — o.oi 

17 37 46.37 - 0.03; 
17 44 21.12 -h 0.51 
17 53 34.96- 0.03 



18 

18 
18 
18 

19 



5 

15 

53 

59 
18 



54.89'-^- 

9.44 -H 

25.35 
23.12 +- 

5304 4- 



o.ot. 

0.74- 

» 

0.16 
0.02 



19 29 49.99 4- o.ii 
19 44-23.094- 0.02 



19.20.28,41. Bisections at sets B and D. 

25. Observation largely in error. Wire B probably used. 
26.29,45. Wire A used. 



OBSERVATIONS WITH THE TRANSIT OIBCLE. 



67 



1 


' 




MICROSCOPE MICROMS. 


TELESCOPE MICROMETER. 


S d 

























tea 


Circle 
Division. 

• 
























Apparent 
Zenith Dis- 
tance, South. 




Refraction. 


Apparent N. 
P. Distance. 


c 


3 


I. 


1 
II. 


III. 


IV. 




Rev. 


I. 


2. 


3. 


4- 


5. 


u 1 

u ^ 

.2 S ' 


z 


























N^ 








tr. 












S^ 




c 


f 


r. 


>( 


II 


,, 














M 


c 


; 


( 1 






/ " 





> 


<f 


II 


I 


5 


1 

4 


5.8 


' 6.7 


29.8 


26.7 


24 


1 

• • 


852 


• • 


800 


• ■ 


10. I 


5 


7 


39.0 


• • 


+ 


5.0 1 


56 


14 


5.2 


-h 1.6 


2 


316 


36 , 


6.6 


7.4 


2.3 


0.7 


« 


500 


550 


465 


535 


505 


10. I 


316 


39 


II. 


• ■ 


— 


51.9 


7 


44 


40.3 


- I.I ' 


3 


24 


iS 1 


9 21.5 


' 21.0 


136 


10.5 


30 


• ■ 


650 


• ■ 


500 


« ■ 


10. I 


24 


20 


26.5 


• • 


-h 


24.9 , 


75p 


27 


12.6 


-h 0.9 


4 

5 


312 


14 ' 


9 28.9 


29.0 


24.8 


22.1 


23 


565 


635 


530 


650 


630 


10. I 


312 


iS 


3-6 


• • 


^mmm 


I 0.6 1 


3 


23 


24.2 


- 2.4 

1 


6 


47 


42 


10 23.3 


22.5 


15.0 


16.5 


23 


• « 


914 




800 


• ■ 


10.4 


47 


44 


20.3 


383 


-h 


I 1.4 


98 


51 


42.9 


- 1-7 


7 


22 


36 , 


8.2 


8.5 


0.7 


0.5 


27 


• ■ 


816 




738 


• • 


10.6 


22 


38 


52.0 


295 


-h 


22.9 


73 


45 


36.1 


-h 0.4 


s 


47 


10 ' 


26.3 


26.5 


18.9 


19. 1 


24 . 


■ • 


030 




890 


• • 


10.6 


47 


14 


2.0 


2 So 


-h 


590 


98 


21 


22.2 


- 2.3, 


9 


17 


40 ' 


10. 9 


10.3 


2.9 


3.8 


27 


* • 


463 




• » 


• • 


10.7 


17 


42 


55.8 


• « 


-h 


17. I 


68 


49 


34- 1 


- 2.6 


10 


iS 


12 


4.0 


2.9 


25.3 


26.2 


29 


• • 


• • 




610 


600 


10.7 


18 


14 


27.9 


208 


H- 


17-7 


69 


21 


6.8 


2.7 


n 


307 


28 1 


10.4 


9.5 


3.5 


4.4 


27 


40S 


523 




492 


441 


10.6 


307 


30 


54.0 


1S8 




I 9-5 


358 36 


5.7 


4- 0.4 


12 


49 


iS 


9.8 


10.5 


2.4 


2.7 


27 


* • 


318 




225 


■ • 


10.6 


49 


20 


57.7 


188 


+ 


I 2.2 


100 


28 


21. 1 


- 0.3 


>3 


33 


44 


8.0 


8.5 


0.6 


0.5 


22 


• • 


630 




732 


• • 


10.6 


38 48 


10. 


206 


+ 


43.1 


89 


55 


14.3 


4-2.1 


M 


19 46 , 


11. 


11.5 


4.1 


4.0 


24 


• • 


818 




663 


• ■ 


to. 6 


19 49 


35.3 


220 


-f 


19-5 


70 


56 


16.0 


+ 0.3 


i^ 


316 


36 ' 


10.6 


10.8 


5.6 


4.7 


26 


• • 


260 


205 


174 


• ■ 


10.6 


316 


39 


12.5 


289 




51.6 


7 


44 42.1 


4- 0.8 


i6 


155 


36 


6.0 


6.5 


0.0 


27.4 


25 


038 


• • 




020 


938 


10.6 


155 


39 


36.0 


• • 


— 


24.7 


75 


26 


9.9 


- 1.6 


17 


62 


52 


4.8 


6.3 


29.0 


28.0 


28 

1 


• ■ 


060 




918 


• • 


10.6 


62 


54 


51.0 


288 


-f- 


I 46 4 


114 


2 


58.6 


-h 0.6 


i> 


153 


44 


4.7 


5.5 


28.6 


26.4 


29 


376 


244 : 


y 


140 


231 


10.6 


153 


46 


32.5 


■ • 


— 


27.0 


77 


19 


15.7 


— 0.2 


10 


2og 


52 


3.8 


6.5 


0.4 


27.0 


26 


232 , 


286 




126 


128 


> 10.6 


209 55 


18.6 


* « 


^ 


31.5 


21 


10 


31.1 


- 5.1 


2*) 


326 


38 


8.8 


8.4 


3.5 


2.7 


26 i 


• • 


400 




429 


• • 


10.6 


326 


41 


II. I 


292 


— 


36.0 


17 


46 56.9 


-h 0.9 


21 


192 


34 


3.6 


6.3 


29.6 


25-7 


28 


300 , 


330 




080 


990 


10.6 


192 


36 48.3 


■ ■ 


-h 


12.3 


38 


29 


20.6 


- 2.7 


22 


41 


44 


7.3 


7.7 


0.9 


29- 5 


21 


• • 


589 




490 


• • 


10.6 


41 


48 


27.9 


297 


-h 


49.0 


92 


55 


38.1 


- 2.9 


23 


47 


8 1 


9-5 


10.5 


30 


2.6 


21 


■ • 


308 




249 


• • 


10.6 


47 


12 


29-3 


• • 


+ 


59-2 


98 


19 49.7 


— 1.1 


24 


3(j6 


6 


6.4 


6.7 


1-7 


1.3 


26 


763 


744 


763 


762 


720 


10.6 


306 


9 


8.2 


300 




I 14.9 


357 


14 


14.5 


- 0.4 


2h 


^'5 


18 


6.0 


7\ 


0.5 


29.5 


25 


• • 


472 




321 


• • 


10.6 


65 


21 


294 


300 


-h 


I 58.9 


116 


29 49-5 




2') 


W) 


56 


6.2 


7.7 


29.5 


28.7 


29 


523 


578 




550 


512 


ro.6 


67 





58.7 


303 


-h 


2 8.5 


118 


9 


28.4 


- 4.9 


»»•» 
-/ 


35 


58 1 


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28.7 


28.4 


25 


• • 


463 




300 


• • 


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35 


51 


31-0 


304 


+ 


39-7 


86 


58 


31.9 


4- 0.2 


2-* 


328 


54 


5.1 


5.3 


0.3 


28.6 


22 ' 


■ • 


974 




038 


« • 


10.6 


328 58 


7.3 


1 • * 


— 


330 


20 


3 


55.5 


- 0.5 


2) 


47 


5^ 1 


9.0 


9.3 


2.3 


0.8 


29 


890 


710 




284 


080 


. 10.6 


48 





57.2 


• ■ 


4- 


I I.O 


99 


8 


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6.5 


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0.3 , 


> 29.0 


33 1 


916 


030 




790 


792 


10.6 


5^ 


47 


193 


312 


+ 


I 9.7 


102 


54 


50.2 


- 0.7 


3^ 

1? 


rS 


46; 


9.0 


8.8 


2.6 


1.3 


29 

1 


• ■ 


• • 




2(X) 


300 


10.6 


t8 


48 


27.4 


200 


-h 


18.3 


69 


55 


6.9 


-2.8 

1 


33 


47 


10 


0.4 


0.3 


24.2 


23.8 


23 


• • 


740 




604 


• • 


10.6 


47 


M 


2.3 


263 


-h 


58.7 


98 


21 


22.2 


- 1.6 


34 


10 


20 


5-6 


4.9 


29.4 


28.1 


23 1 


• ■ 


339 




256 


• • 


10.6 


10 


24 


3T 


263 


-h 


10. 


61 


30 


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|— 0.8 


35 


39 


14 ' 


30 


2.4 


25.5 


25.1 


28 ■ 


■ • 


050 




920 


• • 


10.6 


39 


16 


54.2 


• • 


-f 


44.5 


90 


23 


59-9 


- 1.5 


3'' 


. 40 


6 , 


5.5 


4.6 


28.9 


28.0 


22 ' 


• • 


• • 




400 


541 


' 10.6 


40 


10 


14.8 


263 


-f 


45.9 


91 


17 


21.9 


1 , 
— 0.6 


37 


31 


26 1 


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2.0 


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22 

1 
1 


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266 




143 


135 


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30 


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259 


-h 


33-3 


82 


37 


17. 1 


i- I.I 


3' 
3) 


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1 
10 


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25.5 


25 


• a 


772 , 




670 


• • 


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26 


13 


27.6 


347 


4- 


27.3 


77 


20 


16. 1 


-1- 0.7 


4'> 


330 


2 


2.4 


1.5 


26.8 


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28 


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a • 


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21 


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24.4 


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310 


260 


210 


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18 


52.0 


• ■ 


-f 


36.5 


17 


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52.7 


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347 


20 1 


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II. 5 


6.5 


6.1 


26 ] 


• • 


208 


. . 


052 


• • 


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547 


23 


12.4 


■ • 


— 


12.4 


38 


29 


21.2 


— I.I 


43 


59 


54 


31 


1.7 


24.8 


25.1 


26 


■ • 


460 




343 


• • 


10.4 


59 


57 


18.5 


363 


H- 


I 35.8 


III 


5 


15.5 


- 1.5 


44 


312 


'^ i 


10.8 


9.0 


4.1 


4.0 


22 ' 


980 


870 


820 


840 


908 


10.4 


312 


18 


4.2 


. 


— 


I I.I 


3 


23 


243 


- 1.0 


45 


^7 


10 


13.5 


T31 


5.8 


6.5 


31 


058 


064 ' 




880 


853 


10.4 


67 


14 


30.0 


363 


-f 


2 II. 7 


118 


23 


2.9 


- 5.0 


4f> 


25 


10 


10.4 


9.2 


2.7 


2.1 


28 


■ • 


088 




9S2 


• • 


10.4 


25 


12 


46:2 


• • 


-f 


26.2 


76 


19 


33-6 


— I.I 


47 


35 


58 


8.5 


7.3 


0.5 


1.4 


25 


* * 1 


395 

1 




290 


■ • 


10.4 


36 


I 


29.1 


B • 


-V 


^0.4 


87 


8 


30.7 


- 0.5 


4* 


46 


8 ' 


10.2 


9.3 


2.6 


2.4 


25 1 


• • 


008 




940 


• • 


10.4 


46 


II 


32.9 


357 


-f 


57.9 


97 


18 


52.0 


- 0.5 


49 


149 36 
Barom 


9.5 


9.3 

nal A 
m. 


3.5 


1-5 


29 


336 


340 1 




220 


168 


10.4 


149 


38 


27.4 


• ■ 


V 


32.5 


81 


28 
00 


26.3 


-h 0.4 

- 1 


No. 


1 Exter 
Ther 


Lttachec 
rherm. 


1 

1 
























T ^ 


M 


N'S— 


1 
1 


1 




in. 




# 


1 
1 





. 




• 




















JNo. 

P 


arallax. 


Semi-diam. 

1 



For summary of the elements of reduction see page 3. 



n 



68 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



a 

3 



OBJECT. 



SECONDS OF TRANSITS OVER WIRES. 



.a ' « I. n. III. IV. V. VI. VII. VIII IX.. Mean wire.! Inst. 



CORRECTIONS. 
' Clock Clock 



^ 



I 



appar*nt.,adopted. 



Apparent R. 
Ascension. 



'i T. 



c c 






1868. 

July 22 



23 



25 



28 



I 



I 
2 

3 

4 

5 
6 

7 
8 

9 

10 
II 
12 

13 
14 

15 
.16 

17 
18 

19 

20 
21 
22 

23 
24 

25 
26 

27 
28 

29 

30 

31 
32 

33 
34 

35 
36 

37 

38 

39 

40 

41 
42 

43 

44 

45 
46 

47 

48 
49 



Hesperia . 
a^ Capricorni . 
Calvpso 
' Venus II, N. 



Sun I, S. . 
Sun II. N. . 
Moon 1 
Polaris, S. P. 
Virginis 



a 

a 
f 



Serpentis . 
Serpentis . 
Saturn I, S. 
Saturn 11, N. 
Draconis . 



s Ophiuchi 

Groom. 966, S. P. 
li Draconis . 
D Draconis, (R.) 
y» Draconis, (R.) 



22 Camelopard., S. P 

^ Serpentis 

6 Ursae Minoris 

,i Lyra 

} Aquila . 



Polaris, S. P 
C Virginis 

Moon I, N 
V Hoot is . 
a Boot is . 



I Aquila . 

51 Cephei, S. 

o Sagittarii 

C Aquilsc, (R 

r/ Sagittarii 

ft Aquilae, (R 

K Aquila 

} Aquila 

a Aquilsc 

,i Aquilsc 

Hesperia 
n'^ Capricorni 
Calypso 



K 

d 



P. 



) 



Sun, S. . 
Sun II, N. 
Ophiuchi 
Moon I, N 
Ophiuchi 

Ophiuchi 
Hcrculis 



) 



T. 3 ,43.846.348.1:54.256.258.5, 4.4 6.0 8.7 
T. . . . 41.944.046.2 48.2 50.4 54.4 56. 1 58.6 

T. , 2 57.8 0.5; 2.4. . . I 23.4 

N. 31 J30. 633. 134. 7I41. 043. 1145.251. 553. 155. 7: 



m. 



s. 



s. 



s. 



4t 



N. 

N. 
N. 

N. 
N. 

N. 
N. 
N. 

N. 
N. 

F. 
N. 
N. 
N. 
N. 



' N. 

■ N. 
N. 

■ N. 

' N. 

T. 
T. 
T. 
T. 
I T. 

T. 
I T. 
I T. 

T. 

I T. 

' T. 
T. 
T. 
T. 

' T. 

T. 

I T. 



2 
2 

3 

4 

4 

3 

3 
1.2 



2 
2 

4 



43. 145. 947. 554. 1 56.258.4 4.8 6.5 

57.6 0.5 2.0. 8.6 10. 7I12. 8 19.5 21.0 
\ . . . . 34. 2136. 338. 5140. 542. 7 . . 

I . . . . ,50.028.0' 1.5! . . ,15.029.0 
2.4 4.9 6.5 12.8 14. 9*16.9123. 1 24.7 

34. 7 37.3'38. 8 45.0,47. 1,49. 1,55.3 56.9 
3.1 5.6 7.1 13.2 15. 3I17. 423. 525. 1 

19.922. 1 24.2 26.428.7 . . 



[12.5 15.2,16.9 



13.8 18. 1 



42.6 

» • 

I 8.9 
13-2 



2 I50.2 

2 ,18.4 

3 • . 
3 59-8 

3 48.4 



3 

3 

2 

3 



125.0 

45.3 
43.2 
10.4 
25.0 

50.1 

■ • 

52.2 

9.1 

42.7 



45.146 

. . 18 

13. 1 15 

24.435 

. . 8 

43.038 
20.922 

• • ■ 

2.8 4 
51-252 

42.041 
48 . o 49 

45847 
13.014 

27.729 

52.554 

. . .45 

55.o5<> 
II. 613 

45.447 



34.035.6 
22.631. 1 34.6 



9-3 
23.6 

25.0 
27.4 

59.4 
27.71 

38.3; 
39-6, 



.652.954.7156.9] 3. 
.510.7 3.055.247. 
.7125.828.932.242. 
.841.3147.1 52.958. 
.2 14.8 21.6128.034. 



.721.3 15. 
.428.5,30. 

• • • • I 

.6112.0 14. 
.658.8' I. 

.031.01 . . 

.4155.657. 
.553.6155. 
.821.223. 
.5,35.938. 



0.3, 2. 



9.952. 

32.638. 

|23.0 30. 
5 16.824. 
o 2.9 9 . 



I40.0 
659.7. 



5. 



.2 

.0 2.018. 

.6 3.6. 5. 

.2{I9.6'2I. 

.153.555. 



2. 4.7 7.2 

244.849.21 
4 9.620.6) 

/ • • • ■ 

I 
548.040.9 

640.2,42.8 

057.540.7; 
0^25.829.0; 

210.8 13. 3j 



61 7.3 9.8| 
3' 5.8, 8.4 



58.01 4. 

25 . 5i • • I . • • . I 
40.3146.748.3 51. 1 



3 39 
. 35 
3 47 

• , 9 

3 138 



4 4.310. 

5 36.7154. 
9 8.214. 
7I23.730. 
757.8 4.2 5.9 8.6 



6I12.314.7 

3 . • . . ' 
916.7 19.5! 

I 31. 734. 4 



2 
3 



|23 
i32 



.142.143.449.651.7153.7 

.938.540.246.348.350.456.5 58.1 0.5 
• 550.151.758.0 0.0. 2.1 8.3 9.812.5 
.211.8 13.4119.6121.6123.729.831.4 34.0 
.441. 042. 648. 6|5o. 7 52.7 59.0 0.5 3.1; 



.^25. 9 . . ..,.., 

.134.736.342.544.646.7,53.1 54.657.3! 
. 18.620.7 37. 338. 941. 4I 



o 56.24 -♦- 
10 46 
24 10 

23 43 



II 56 
14 10 

49 38 
II 2 

18 14 

37 47 
44.15 
49 24 
49 25 
22 13 

29 54 
22 2 

27 28 

37 47 
44 21 



15 
30 

13 

14 

o 



4 
14 
15 
45 
40 

II 5 

27 57 

38 55 

48 23 

9 38 

28 2 

37 19 

47 5 
59 21 

9 55 

18 51 

29 48 
40 o 
44 21 

48 50 

58 35 
10 44 
21 28 



E. 
E. 
E. 
E. 

E. 
E. 



. 36. 939.541. 347. 649. 952. 058. 4 0.1 2.9 
. 11.5 14.015.421.6123.625.7132.1 33.536.1 
4 152.755.557.01 3.5 5-71 7.914.4,16.419.01 
• 139. 341. 943. 549.6151.753.7 0.1 1.5 4.3I 



! . . . . 19.3 21.1123.3 
27.430.632.439.842.1 



25.427.4 . . . . ' 
44.551.953.656.8 



49 
7 23 

17 5 

29 51 

51 23 
56 42 



o 

12 -I- o 
68, -f- o 
II -f- o 



2C -H O 

7c -h o 

44-1-0 

53 -»-i3 

84 -f- o 

07 -h O 

33+0 

26 4- O 
42-1-0 

88- o 

86 4- o 
90 -f- I 
98—0 
03—0 
46—1 

56-1- I 
54+0 

63-5 
37+0 
91 -♦- o 

38-fi3 

59-^-0 

83+0 

35 -+- o 

07 4- o 

I 

38-1- o 
464 6 
84 -h o 
68 -h o 
66-1-0 

60-1-0 
30 -h o 
00-1-0 
61 -h o 
72 -h o 

86 -f- o 
65-1-0 

82-1-0 



52 . . 

54- 0.36 

57 . . 

32 . . 

s 
29 
29 

39 • • 

82 . . 



+ 



o 
o 
o 
o 



-H O 

-f- o 

-^ o 

-h o 



48 -h 0.32 ,4- o 



o 
o 
o 
o 

-h o 



37 -h 0.28 ^- 

39 -♦-0.30 ■\- 

53! . . -h 

53 • • |-^ 

22; 



48|-»- 0.33 -h o 

57 ..-ho 

03 . . -h o 

88 . . 4- o 

101 . . -I- o 



27 . . -h 

43 -1-0.20 4- 

I2| . . -I- 

19 -}- 0.30 |-|- 

36, f 0.28 -h 



I.I5 *+ 



42 

39 -h 

43' . . -+- 

281 -h 1.23 -K 

27 -f- 1.09 ,-h 



44 V III 

98 

57+ 1. 17 
16 

51!+ 1.13 



i-h 



2^ 



J I 



44 + 

33| + 
35'4- 
36 -h 



15 

23 
.12 



45 . . 
47-1- 1.21 
50 . . 



+ 

-h 

f 
f 

f 



18 
IS 

17 
09 

II 
II 
18 
21 
21 

25 

25 

26 

26 
27 

27 

29 
29 

30 
30 

30 
31 
31 
32 

34 

09 
10 
10 
10 
II 

19 

19 

19 

19 
20 

2Q 
20 
21 
21 
21 



20 o 56. 5S 

20 10 46.48 -}- 
20 24 11.08 

7 23 43-52- 



s. 



0.1 



I.r)^ 



8 II 56.61^ . . 
8 14 11.10 . . 
I 49 39.01+67.01 
III 16.56 -h o.^2 
3 18 15.53.— ^.n 

5 37 47.69 - 0.03 
5 44 15.97.- o.crf> 
5 49 25.05 . . 

5 49 26.211 . . 

6 22 13.93 — o.So 



6 

5 
7 
7 
7 

6 

8 
8 
8 

9 



29 55 
22 4. 

27 29, 

37 46. 

44 20. 

4 17 

14 31 

15 8, 

45 14 
40 I, 



6- - 

7( - 
24 -h 

A^ -f- 

I 
.n -h 

,2J^ -«- 
.82 + 

,61 h 



o.n 
0.41 

o.f>> 
0.12 
o.f>j 

0.2* 

O. 12 

o . 33 
0.04 
0.07 



I II 19.8c, -j- 2.51 

3 27 59.08 — o.c>5 

3 38 57 .3^' +65.01 

3 48 24.73— o'6 

4 9 39-45 + 0.03 

I 

8 28 4.01 -h o. 12 

6 37 27.63 -h 1.22 

8 47 7.6c o.(X» 

8 59 23.05 -t- 0.07 

9 9 57-37 - 001 

9 18 53.05 -I- 0.02 

9 29 49.94 4- 0.05 

9 40 1.54 — 0. 01 

9 44 23,17-1- o. 10 

9 48 52.20 4 0.114 



21 1 19 58 37-52' . . 

22 , 20 10 46.34 4 0.01 
22 20 21 30.541 



84 f 0.17 

72 + 0.22 f 3.78 

79 -I- 0.26J 

73 4- 0.24-}- 3,67 

I 
32 -f- 0.20 4- 3.71 
12 -I- 0.14I 



I- 3.57 8 33 53.5''^ -^»- ^^3 

4- 3.68 I 16 7 27.62— o.(» 

4- 3.68 16 17 9.73 -1-65. «;f' 

-I 3.68 I 16 29 55.65 — 0.04 

4- 3.68 , 16 51 27.20 o.oi 

+ 3.68 16 56 46.04 4- 0.3c 



1.3.40.42. Wire A used. 

15. Bisections at E- and VII. 
16.18.22.27. Bisections at sets B and D. 

22. Double weight for last 2 wires. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



69 









MICROSCOPE 


MICROMS. 


TELESCOPE MICROMETER. 


enith Point 
'orrection. ' 








• 
E • 


















('ircic 
Division. 


1 

1. 


II. 


III. 


IV. 


1 
Rev. 


I. 


2. 


3. 


1 

4. 


5. 


Apparent 
Zenith Dis- 
tance, South. 




Refraction. 


Apparent N. 
P. Distance. 


c ' 


^ 










~ 
















n:^ 








X 










• 




1 




r- 


» 


r. 


r r 


,, 


M 


■ 












1 1 





• 


r « 






« 


/ • 





t 


n 




II 


I 


43 


8 


9.8 


9-5 


2.0 


2.4 


30 


758 


654 


• * 


570 , 


510 


10.4 


48 


12 


40.7 


357 


-f- 


I 


2.0 


99 


20 


3.9 


[ — 


2.7 


2 


51 


46 


5.8 


5.0 


28.3 


28.8 


26 


• • 1 


128 


• • i 


092 


. '. 


10.4 


51 


49 


19.7 


• • 


-}- 


I 


10.5 


102 


56 


51.4 


■-*- 


0.8 


3 


55 


18 


10.8 


9-5 


30 


2.7 


31 


138 ' 


950 


1 

• ■ 


• ■ 


• • 


10.4 


55 


22 


34.4 


357 


-h 


I 


20.3 ; 


106 


30 


15.9 


— 


3.6: 


4 


23 


12 


10 5.1 


4.6 


28.5 


28.4 


26 


3f)0 


382 


• • 


• • 1 


• • 


II. 4 


23 


15 


18.7 


230 


'-f 




23.2 


74 


22 


3.1 


— 


II. 7 


5 


IQ 


10 


14.5 


12.8 


6.0 


5.8 


27 , 


(/;o 


940 


• a 


■ • 


■ • 


II. 4 


19 


12 


46,1 


• • 


+ 




18.7 


70 


19 


26.0 


— 


2.8 




iS 


38 


"•5 


9.2 


3.8 


4.2 


26 


• • 


■ « 


105 


030 


921 


II. 4 


iS 


41 


16.2 


213 


4- 




18.2 


6<; 


47 


55.6 


— 


2.8 


i 


307 


28 


3.2 


3-5 


27.4 


28.7 


27 , 


• • 


■ • 


865 


• • 


• « 


10.8 


307 


30 


54. f> 


192 


— 


I 


9.6 


358 36 


6.2 


-1- 


0. 1 


'1 


49 


18 


8.1 


8.1 


1.3 


0.5 


27 1 

1 


• • 


• • 


4^^ 1 


• • 1 


• • 


10.8 


49 


20 


5^-5 


• ■ 


4- 


I 


2.3, 


100 


28 

» 


20.0 


— 


I.O 


lo 


31 


58 


5.8 


4.5 


27.0 


26.2 


22 


■ • 


172 


1 

• • 


078 


• • 


10,6 


32 


2 


22.0 


261 


+ 




34.0 


83 


9 


17.2 


4- 


0.7 


11 


33 


56 


6.4 


5-4 


28.1 


27.0 


22.1 


1 
• • 


• • 


467 


■ • 


■ • 


10.6 


34 





15.9 


• • 


-f- 




36.7 


85 


7 


13.8 


' — 


0.8 


12 


56 52 


6.2 


5.3 


28. Q 


27.4 


23 


•305 


■ • 


• • 1 


1 
. 1 


062 


10.6 


56 56 


4-7 


■ • 


-h 


I 


23.4 


loS 


3 49-3 


— 


0.8 


n 


5<i 


52 


6.2 


5.3 


28.0 


27.4 


24 


• • 


365 


• • 

1 


258 ' 


• • 


10.6 


56 


55 


47.6 


■ • 


-1- 


I 


23.4 


108 


3 


32.2 




0.8 


M 


337 


2 


8.5 


7.1 


3.0 


0.3 


27 


• • 


• • 


1 

• . 1 


720 


795 


10.6 


337 


4 


51.9 


273 


— 




23.0. 


28 


10 


50.1 


1 '^— 
1 


0.2 . 

1 


i> 


49 


6 


1 7.2 


7.0 


29.8 


28.4 


21 


. . 1 


• 


1 


875. 


982 


10.6 


49 


10 


21.5 


• • 


-1- 


I 


3.1 


100 


17 45.8 


1 
1 + 


1 
1.9 


i6 


293 


48 


4.1 


3.6 


28.0 


27.2 


22 


• • 


068 


135 


050 


« • 


10.6 


293 


52 


22.5 


• • 


— 


2 


2.7 ' 


344 


56 


41.0 


1 — 


0. 1 


i; 


346 


26 


4.8 


3.6 


27.5 


26.0 


25 


■ « 


• • 


486 , 


405 1 


406 


10.6 


346 


29 31.6 


287 


' — 




13.2 


37 


35 


39.6 


— 


1. 1 


IS 


209 


52 


9 29.5 


1.2 


25.7 


2Q.8 


26 


595 


574 


• ■ 


534 


506 


10.6 


209 


55 


18.2 


• • 


+ 




31-5 


21 


10 


315 




3.4 


I') 


213 


14 


4.2 


6.0 


0.0 


26.8 


20 1 


• • 


• • 


114 


• • 


■ • 


10.6 


213 


18 


51.7 


• • 


-h 




36.0 


17 


46 


53.5 


— 


1.2 


2() 


2SS 


14 


1 3.4 


3.3 


28.5 


26.9 


24 


466 


512 


■ • 


445 


372 


10.6 


288 


17 


45-4 


2t}0 


— 


2 


43.7 


339 


21 


22.9 


1 


0.8 


21 


41 


46 


4.5 


3.7 


28.1 


26.6 


29 


• • 


• 


&75 . 


• • 


• • 


I0.6 


41 


48 


26.7 


• • 


-f 




48.9 


92 


55 


36.8 


— 


1.8 


22 


312 


14 


5.9 


4.6 


29.8 


28.5 


23 


• • 


• • 


• • 1 


33S 


420 


10.6 


312 


18 


2.1 


■ • 


1 — 


I 


0. 1 


3 


23 


23.2 


— 


1.9 


23 


5 


38 


8.8 


7.7 


2.3 


0.4 


28 


9M 


887 


• • 1 


715 


764 


10.6 


5 


40 


36.0 


297 


+ 




5.5 , 


56 


47 


2.7 


— 


1.7 


24 


2S 


32 


8.5 


6.6 


0.4 


29.6 


26 


315 


291 


■ • 


202 


156 


10.6 


28 


35 


16.2 


299 


-+- 




29.9 


79 42 


7.3 


" 


0. 1 


-5 

2f> 


3'S 


44 


II. 2 


10.5 


3.5 


4.4 


22 




640 


« • 


658 


• * * 


11.4 


38 48 


8.2 


248 


+ 




43.6 


89 


55 


• 

13.0 


4- 


1-3 


27 
2.> 


44 


48 


12.6 


II. 9 


4.6 


6.7 


26 




979 


768 


515 


• • 


II. 4 


44 


51 


3.9 


248 


4- 




53.9 


95 


58 


19.0 






2') 


IS 


58 


10.6 


9.8 


2.3 


3-4 


27 




393 , 


1 


26S 


• • 


II. 4 


19 





57.7 


242 


1 

' 4- 




18.6 


70 


7 


37-5 


1-^ 

1 


1.0 


V 


47 


10 


13-3 


13.8 


7.0 


5.7 


2^ 




010 


• « 


9<38 , 


• • 


II. 4 


47 


12 


29. 1 


327 


+ 




59-^ 


98 


19 49-9 




0.4 


31 


306 


6 


9.5 


9.5 


4.5 


*4.7 


26 




688 


770 


686 


• • 


II. 4 


306 


9 


6.4 


■ • 


— 


I 


15.4 


357 


14 


12.2 


— 


0.7 


32 


65 


16 


13.1 


13.5 


7.1 


5.7 


27 




225 


• ■ 


105 


• • 


n.4 


65 


18 


56.6 


332 


-f 


I 


59-5 


116 


27 


17.3 


4- 


0.7 


13 


154 


44 


7.7 


7.7 


1.8 


28.8 


2f) 


46i 


501 


• • 


370 


3^'" 


II. 4 


154 47 


13.8 


• a 


— 




26.0 


76 


19 


33.4 


— 


0.7 


M 


5^ 





12.3 


12.5 


5.7 


4.6 


26 




778 ' 


• ■ 


700 


« • 


II. 4 


58 


3 


4.2 


■ 338 


+ 


I 


28. 5 


109 


10 


53.9 


— 


0.5 


1? 


143 


56 


10.5 


II. 7 


• 

4.5 


2.0 


1 
29 




072 


• • 


001 


• • 


II. 4 


143 


58 


30- 7 


• ■ 


— 




40.2 


87 


8 


30- 7 


— 


0. 1 


•;^) 


46 


8 


130 


13.5 


6.8 


5.6 


24 




780 


• • 


740 


• • 


II. 4 


46 


II 


33f» 


1 338 


1 + 




57.6 


97 


18 


52.4 


+ 


0.2 


37 


2S 


32 


12.6 


12.2 


5.8 


4.5 


26 




030 


• • 


915 


• • 


II. 4 


28 


35 


16. 1 


« • 


+- 




30.2 


79 


42 


7-5 


f 


0.5 


';^ 


3<> 


18 


10.5 


II. 


3.8 


2.5 


25 




093 


■ • 


c)48 


• • 


II. 4 


30 


21 


32.5 


• ■ 


-h 




32.4 


81 


28 


26.1 


4- 


0.6 


3') 


32 


44 


8.5 


8.5 


0.9 


0.7 


23 




24S 


■ ■ 


060 


• • 


II. 4 


32 


48 


3.3 


• • 


+ 




35.7 


83 


55 


0.2 


4- 


0.2, 


4<. 


4S 


16 


14.5 


14.0 


7.6 


6.3 


23 




190 


• • 


940 


• • 


II. 4 


48 


22 


32.7 


345 


-1- 


I 


2.3 


99 29 


56.2 


— 


2.7 


41 


51 


46 


10.7 


II-3 


4.4 


3.2 


25 




833 


• • 1 


864 


• • 


11.4 


51 


49 


193 


34f> 


+ 


I 


10.3 


102 


56 


50.8 


4- 


0.3 


42 


55 


32 


14.7 


14.3 


7-4 


6.8 


33 ' 




• • 


• • 


730 

1 


• • 


II. 4 


55 


35 


48.6 


1 345 


4- 


I 


20.8 


106 


43 


30.6 


1 — 


3-6 


43 


20 


16 


10 2.3 


1-5 1 


26.3 


25.6 


• 




160 


• ■ 


• • 


• • 


12.3 


20 


19 


25.2 


• • 


-f 




20.4 


71 


26 


6.8 


— 


3.0 


44 


19 44 


10 0.3 


29- 3 


24.4 


23.7 


24 




■ • 


• * 


330 


475 


12.3 


19 


47 


51.8 


305 


+ 




19.7 


70 


54 


32.7 


— 


2.9 


45 


42 


12 


8.5 


8.6 


3-5 


2.5 


31 




9«5 


• • 


Sio 


• • 


12.0 


42 


13 


49-5 


• • 


+ 




50.5 


93 


21 


1.2 




0.0 


46 


55 


28 


9 27.8 


28.5 


22.0 


18.5 


29 


555 


• • 


485 


■ • 


460 


12.0 


55 


30 


37.2 


• • 


4- 


I 


20.9 


106 


38 


I9-3- 






47 


49 


6 


10 10. 1 


8.7 


3.8 


2.5 


22 


070 


c)40 


• • 


« • 


• m 


12.0 


49 


10 


19.7 


• • 


-h 


I 


4.5 ; 


100 


17 45.4 


-f 


1-7 


4^ 


29 


M 


9.8 


8.8 ' 


3.8 


1.8 


23 , 


»• 


1 
1 
. « 


• • 


343 


283 


12.0 


29 


17 


59.1 


380 


4- 




31-3 \ 


80 


24 


51.6 


1-^ 


0.9 


4') 


5 


4 


9.1 


6.5 : 


2.3 


0.7 


24 ! 


■ • 


935 


• • 


875 


• « 


12.0 


5 


7 


37.3 


• • 


1 




5.0 1 

1 


56 


14 


3.5 


-h 


1.8 



N«. Barom. 



External Attached 
Therm. Ther/n. 



MOON' 



in. 



J^'or summary of thi' tlements of reduction see page 3. 



No. 



Parallax. 



Scmi-diam. 



27 
46 



40 40.6 f 15 48.8 
45 41.7 ,+ 15 "2 



70 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
July 28 



Xi 

B 



I 

2 

3 

4 

5 
6 



I 



OBJECT. 



f Ursa? Minoris 

a Herculis 

1/'' Draconis 

) Draconis . 

fJ Ursic Minoris . 



u 
V 



. E. 

. I E. 

. E. 

. E. 

\ E. 

) E. 



SECONDS OF TRANSITS OVER WIRES. 



> 



CORRECTIONS. 



I. ; II. I III. IV.' V. VI. VII. VIII IX. Mean wire. Inst. 



Clock ' ('lock I 
appar'nt. adopted.! 



Apparent R. 
Ascension. 



, . . . . 6.020.435.349.7 4.5 . . . . 
23.426.1 27.633-.y35.()38.o44.446.048.5 
. . I . . 3.5 10. 1 16.623.5 30. 1 . . . . 
ir.3 15.5 17.627.730.934.244.046.650.6 
.37.521.045.0' . . . . i . . ;22.049.03i.5 i 



55.030.0 6.040.015.5 



S 



m. s. s. s. 

59 35.25 — 0.61 

^ 35 -O*^ f 0.18 -I- 3.61 

44 16.76 — 0.07 

53 3^>03 -^ o.O() . . 

15 4.81 — 1.02 



'i i 



^ w 



s. [ h. m. s. 

+ 3. 68 ' 16 59 37.32 

f 3.69 ! 17 8 39-^5 

f 3.70 ' 17 44 20.39 
+- 3.70 17 52 34.72 

+ 3.70 ' 18 15 7.49 - 0.14 



- I.!' 
4- O.n* 

— o.l^ 



29 



30 



31 



Aug. 5 



7 f Urssc Minoris 

8 Moon I, N. 

9 •ff Ophiuchi 

10 a Ophiuchi 

11 ! /I Herculis 

12 , ^ Sagittal ii . 

13 6 Ursnc Minoris 

14 a Lyrae 

15 . Ti Herculis 

16 K Ophiuchi, (R.) 

17 f Ursa Minoris 

18 h Ophiuchi . 

19 w Draconis 



20 n Sagittarii 

21 I A Ursac Minoris 

22 I I Aquil?e 

23 I 51 Ophei, S. P. 



37 

38 

39 
40 

41 

42 

43 

44 

45 
46 

47 

48 



24 ^''' Draconis . 

25 , > Draconis 

26 /< Sagittarii 

27 A Ursfc Minoris 

28 I 51 Ccphei, S. P. 

29 ,i LyraD 

30 Moon I, N. 

31 A . Aquil?c . 

32 Sun I, .S. 

33 I Sun, IT . . 

34 ft Sagittarii 

35 I 6 Ursx Minoris 

36 I Aquilpc . 



« LyrjT 
A Aquilac, (R 
K Aquilx . 
J Aquil?c. (R 
Hcspcria 



T Aquilae . 
a- Capricorni . 
79 Draconis 
32 Ursae Majoris, 
TT Aquarii 

Ceres . 
/ Cephei, (R.) 



S.P 



T. 
T. 
T. 
T. 

T. 



T. i 
T. I 

F. \ 

F. ! 
F. 

F. : 

F. 

F. 
F. 
F. 
F. 



E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. I 

T. 
T. ' 
T. I 
T. I 
T. 

T. 

T. i 

T. ' 
T. I 



T. 
T. 
T. 
T. 
T. 

T. 
T. 



5.024.735.821.836.451.837.048.7 7.8 
47.1 50.051 .6 58. I 0.3 2.5 9.2 10.8 13.6 

4.5 7.4 9.2 15.4 18.020.2 27.028.5 31 .3 
35 037. 7 39. 3 45. 4 47. 5 49. 6 56. 057. 5 0.1 

2.9 5.7 7.4 14.3 16.7 19. 1 26.027.630.5 



5<) 3^>-47 - 1.24 

10 0.30 + 0.35 

iS 17. c_^) \- 0.3S -f 

28 47-57 \ 0.24 f 

41 l6.()i> i o. 1^ f 



2 

2, 



■■»2 

77 

81 



¥ 
f 



2 



79 ' 

So I 

80 . 

81 I 
81 



16 59 3'5.<^2 — o.-io 

17 10 3. 51 -t^ fii.fio 

17 18 21. 17 — r).i»2 
17 28 50.62 1- 0.05 
17 41 19. 6> o .-. 



T. ; 3 38 



5,41.242.949.451.653.8 0.3 1.9 4.7 

■ . ' • . 57.033.0 7. 8 42.0' 1 6. o, . . I . . 
1 2. c» 15.3 17.2 25.027.5 30.2 38. 1 40. 1 43.4 



5 5i.5<M 0.36-1- 2.85 ¥ 2. Si 
15 7. 2S — 2.26 . . f 2.82 
32 27.64 ♦- 0.13-h 2.79 -f- 2.82 



i^ 5 54.76 — o.<>i 
18 15 "7.^4 ^ 0.7: 
18 32 30. 5f) -h 0.03 



• • • • 



12.3 14.9 16.622.624.726.8 33.034.5 37.2- 

. . , I 3.0 15,5 25.0 8.0 

4.r 6.9 8.6115.217.519.826.328.130.9 

,. . . . 38.143.849.555.0 6.510.817.8 

I 
•38.140.8142.44S.9151. i|53.4 15().9 \A)^ 4.2 

I 56.530.0' 5.040.0116.0 . . . . 

47.950.5 52.1 5J^.3 0.2 2.3' 8.5IIO.II2.6 

35.5430 13.043.013.Oj . . . . ! . . , . 

1 

. . I . . , 2.2 9. 1 15.8 22. 2 28. 7 . . . . 

10.7 15.0,17.427.330.533.743.616.1 50.0 

137.340.041.748.350.452.559.21 0.9 3.5 

.... 52.025.0 0.035.5, 9.ol . . 

. . ! . . 53. ^1 9.025.*; . . . . ' . . I . . ' 

I 

I I 

• • ■• •• •■ •• •• •■■• •• 

25.630.034.636.7 38.941 .243 4 48.052.5' 
36.639.240.646.948.9 50.9 57. 1 58.7 1 . 1 

I 1 

22.024.626.332.734.037.043.0 44.747.6 

i34. 2 36. 938. 4 44. 9 47. 1 49. 1 55.757.1 0.0 

35.2'38.o39.646.i48.3,5o.457.i 58.7' 1.4' 

. . . . 54.0I28.0I 2.038.0 1 2. (^ . . . . 

3 145. 147. 749. 455-657. ^\59.^» 5.^! 7.410.0 



51 24.73 f 0.16 

o 35.52 — 0.S3 

iS 17.49 4^ 0,26 

37 43.^7- o.ii 



5 5i.<^» + 
15 5 . 66 — 

28 0.2S f 

. . . f 



0.25 4 
I .48 
0.21 f 
1.8^ 



3 



3S 



44 I5.rx) I 0.41 

53 30.4^ + 0.19 

5 50.42 -I- 0.05 -h 

15 0.42 f 2. ch; 

37 27.33- 2.54 



55 3^*^-9*) 4 o.oC) 



43 



4.32 



\ 3.3S 

-^ 3-39 

+ 3.39 

f 3.40 

f 3 41 

+ 342 

I f 3.42 

f 3.43 



+ 
-1- 



4.22 
4.22 
4.23 
4.23 



+ 4.24 



■+ 4.25 
18 48.89 f o.oS -♦- 4.0'^ '->f 4.26 



2 34.76 4- 0.23 

4 47.04 4 0.23 . ' . 

5 48.31 -I- 0.404- 6.04 
15 2.92'— 3.06' 

27 57.5^-1- 0.34 4- 5.98 



5. S3 

5.^3 
5.92 

+ 5.92 
+ 592 



8.8 12.0 14. 1 21.924.5 27.1 35. c ^7.040.1 

. 34. f''37. 2 38.645.047.049. 1 55- r56-^>59-3 
. 31. 1 33.835.241.543.5 45. 6 5 1. ('53. 4 56.0 

3 |43.i45.7'47-253.355.457.5, 3.8i 5-5' 8.1 
2 '19.7 ' . . . . 



32 24.50 f 0.12 +- 5.^^> |4- 5-93 

18 46.95-1-0.23 . . 4-5-93 

29 43.56 +- 0.33 ^- 6.02 -f 5.93 

39 55.51 -f 0.18 . . ■ + 5.94 

50 32.14+0.34 . . I 5.94 

57 37.88 -f o.27;-h 5. 88 ' \- 5.94 

1040.17 f 0.36 -f 5.86 -I- 5.(^ 

51 14.70— 0.39; . . I f 5.<)6 



125.528.129.735.7,37.840.046.2 47.750.2 
27.7 30.il3i.7'38.i40.2|42.3 48.6'50.i|52.7 
! . . . 0.5 7.4 14.7121 .8 29. ii . . . . ' 

■ • «• ••'«• •• •• •■ «» •• 

,16.2 18.620.3 26.328.4 30.436.^38. 1 40.7 18 28. 40-1- 0.30,4- 5.92 -h 5.96 1 21 18 34.f>^>-l 0.03 



16 51 2'^.27 -r I. to 

38. 15 — O.OI 

17 iS 21.14— <^-<M 

17 37 47- J6 -I- !.«.) 

iS 5 54.82 -i- OJM 

18 15 7.fjo *- (1.^3 
iS 2S 3.<)! t 0.03 

30.72 4- 3.«»4 

17 44 20.23 *■ o.«>*> 
17 53 34.^<) ^ o.o; 

18 5 54.70 — O.II 
18 15 6.74 + i).2^ 

6 37 29.03 4- c^^ 



18 55 43.30 -^65.13 

19 18 53.23 -i- 0.10 

9 2 40.82 . . 

9 5 53- 10 

18 5 54.63 - 0.14 

18 15 5.78 f 0.77 

18 28 3. ■'^4 — 0.02 

18 32 30. 55 ^ 0.07 

19 18 53. 1 1 4- 0.0^ 
19 29 49.82 — O.'^J 
19 40 1 .63 -I- 0.07 
19 50 38.42 

19 57 44. (X) - 0.03 

20 10 46.47 4- 0.0^ 

21 51 20.27 r 0.71 



• • • • 



3 ,28.935.539.353.858.7 4.1,18.422.228.5 44 58.82- 0.35 



, f 5.97 22 45 4.44 f^ o.?: 



3.8. bisections at sets B and D. 
7.24. Bisections at (^, C.i, and (\',. 
16.32.42. Wire B used. 

17. R. A. over three wires of set E and VII ; bisections at the same wires. 

19. Bisections at E5 and VII. 

23. Bisections at C.\ and set B. 

30. Bisections at Bi, Ci, (\ C.,. and D3. 

41. Wire A used. 

43. Seems one rev. wrong in N. P. D. 



OBSEBVATIONS WITH THE TRANSIT CIRCLE. 



71 



Z 



4 

6 



9 

10 

II 



13 
14 

15 
lb 

17 
iS 

ig 

21 

22 

23 
24 

->» 

20 



2') 



32 
33 
34 

35 



40 
41 

42 
43 
44 

47 
4^ 



MICROSCOPE MICROMS. 



'^ Tircle 
z Division. 



TELESCOPE MICROMETER. 



I. 



r. 



316 36 

24 18 

326 38 

347 20 

'312 14 



10 



It 

II. 8 
14. 1 

9 
II. 



II. 



III. 



IV. 



Rev. 



// 



/« 



tt 



8 
6 



316 36 
57 26 
62 52 
26 10 
II 2 

59 54 
312 14 

o 10 



359 38 
150 38 
316 36 
62 52 
330 2 

59-54 



10 

9 

9 
10 

10 



10.3 



7.9 

8.0 

7.0 
II. 6 

8.7 

10.4 

7.9 
9.4 

0.6 

28.3 

22.3 

I.I 

0.7 



II. I 

II. 4 

6.0 

8.4 

7.6 



4 

3 
o 

3 

4 

7 
9 

5 



6.7 
5-2 

2.5 

4.3 
4.0 



2.5 
29.6 
0.0 
3.0 
2.6 



6.0 

4.3 
0.8 

2.5 
3.4 



0.4 

05 

29.3 
2.6 

1.4 



27.7 

28.3 

19-5 
0.4 

1.2 



2.1 1.7 
2.0 , 1.5 
2.0 I i.o 



26.3 

21.5 
150 

28.3 

25.1 



26.2 
20. g 
10.8 

25.3 
25.8 



9 27.4 i 27.4 19.6 I 22.0 

26.1 28.1 I 



312 14 10 1.9 I 29.9 

3iyj 6 ' 10 29.7 I 28.5 



23.6 25.4 I 25 



326 38 I 

347 20 

59 54 
312 14 ' 

306 6 

I 

5 36 

58 34 I 
35 58 

22 20 ' 

59 54 
312 14 

47 10 I 

o 10 

143 56 

46 8 , 

ISI 22 

48 56 

31 58 ' 

51 4(> 
325 4f* ! 
284 40 1 

-^6 6 

*" I 
I 

63 28 I 
206 34 , 



9.6 
7.6 
6.8 
10. o 
5.2 

13-8 
4.2 



7.4 
6.1 

6.3 

8.3 
5.0 

12.3 
3.0 



5.0 

1.5 
0.9 

4-3 
0.8 



4.8 
2.8 
1.4 
5.6 
1.3 



8.7 6.0 



2.8 

8.3 
10.3 
16.6 

13-2 

8.8 

10.5 

7.0 



0.0 

7-7 
9.0 

16.5 

"5 

9-5 
10.8 

7.4 



10.8 


10.5 


29.3 


28.7 


13. 1 


13. 1 


8.6 


7.8 


7-4 


7.5 


10. S 


9-7 


II. 6 


II. 4 


6.4 


9-5 



7.1 6.1 

27.8 I 27.0 

0.2 ' 2.8 



24.3 23.8 



29-5 
3.2 

8.8 

5.0 
2.0 

3.0 

29.8 

2.8 

20.5 

5.5 
2.5 
1.9 

2.5 

4.1 
2.4 



6.8 
2.4 

5.3 
1.0 

4-4 

21.3 
7.4 
3-5 
3.3 
4-5 

7.3 
1-3 



26 
26 
26 

23 
27 

20 

27 

25 

22 



24 
29 
24 

28 

28 

28 

24 

25 
26 

22 

24 
29 



No. ' Barom. 



in. 



External 
Therm. 


Attached 
Therm. 


c 

1 






I. 



26 

29 
26 

26 
23 



26 
27 
28 

25 1 

26 ' 

I 

25 ; 

23 

25 

20 

38 
28 
28 
29 

26 
23 



482 
455 



560 

123 



372 



570 



755 
045 



no 
345 



3-4 


26 


1 

1 
• • 


5.0 


23 


050 


II. 


29 


• • 



254 

100 



2. 



3. 



455 
382 



515 



485 
133 

601 

• • 

194 

534 

588 



150 

609 
372 



719 

753 



414 ■ 388 



500 
780 

150 
025 



632 

451 

570 

020 



102 
3<)o 

338 

188 
010 
018 

630 

153 
982 

225 



062 



029 



. . 883 

. . I . . 436 

940 ' 080 ' 108 

. . ; 728 

. . 163 . . 



470 
380 
542 
395 

148 
516 

• • 

103 
436 
463 



■ • 


972 


• • 


840 


• • 1 

• • 


309 


310 

• • 


310 
014 


• • 1 

• • 


• • 1 

748 


• • 

• • 


• • 

752 


• • 1 


146 


148 


054 


163 

• ■ 


233 

• • 


• ■ 

• ■ 


445 
042 



472 
648 

568 

635 

590 
098 

070 
100 



045 
380 



068 
049 

920 

758 

010 
020 
190 



560 

764 



692 
960 

587 



5. 



510 
440 

575 
400 



S c 
o o 

•5- 



12.0 
12.0 
12.0 
12.0 



Apparent 
Zenith Dis- 
tance, South. 



I 

a 

o 



•2 «i Refraction. 
£ 



Apparent N. 
P. Distance. 



U) 



(A 



c o 

in = 
— O 



// 



// 



// 



316 39 8.7 

24 20 24.1 

326 41 I I. 5 

347 23 12.0 



H- 



52.7 

25.3 ! 
36.8 

12.6 



132 , 12.0 312 18 2.5 405 |— I 1.6 



7 44 37.2 
75 27 10.6 

17 46 55.9 
38 29 20.6 

3 23 22.1 |— 1.6 



2.2 

+ 0.4 

2.5 
0.1 



+ 



. . II. 5 316 39 II. 5 

200 I 1 1. 5 57 29 0.8 

. . 1 1. 5 62 54 48.5: 

1 1. 5 26 13 25.8 

..II. 5 II 511. 6 

• • "5 59 57 20.1 

. . I 11.5 312 18 1.3 
. . ir.5 ' o 13 34.3 

310 12.5 359 42 54.1 
. . I 12.5 ' 150 35 44.6 

058 I 12.5 316 39 9.1 

785 12.5 62 54 49.7 

875 ! 12.5 330 4 42.5 

655 I 12.5 59 57 22.0 

623 12.5 312 18 2.5 



373 I- 
369 + 

369 i-f 

.' . -h 

. . + 

373 1 + 

374 - 



52.6 
I 27.2 
I 48.4 

27.5 
10.9 

I 36.1 

I 1.2 

0.2 



7 44 40- I 
108 36 49.2 

114 4 58.1 
77 20 14.5 
62 II 43.7 



4- 0.9 

,— O.I 

1+ o.i 
- 0.7 



III 5 17.4 -I- 0.3 
3 23 21.3 — 2.1 

51 19 55.7 ;- 0.6 



328 — 0.3 

. . ;- 31. 1 

343 - 52.2 

. . + I 47.9 

. . - 31.9 



50 49 15.0 

80 31 7.7 

7 44 38.1 

114 2 58.8 

21 10 31.8 



4- 3.6 

- 2.8 

- 0.9 
+ 0.6 

- 1.4 



364 -I- 



35.9 
I.I 



III 5 19. 1 -f- 2.0 
3 23 22.6 '— 0.5 



12.5 306 9 6.9 372 — I 16.2 ' 357 14 II. 9 -}- O.I 



585 



150 



ri 
II 
II 
II 
II 



326 41 

347 23 

59 57 
312 18 

306 9 



8.8 

9.9 

18.2 

2.1 

5.1 



+ 



36.6 

12.5 

36.0 

I.I 

16. 1 



350 110 
052 I 1 1.0 

425 II. I 



5 40 39-8 

58 37 7.ii 
36 I 29.1 



370 



-H 5.5 
+ I 31.0 
f 40.5 



17 46 53-4* + 06 

38 29 18.6 — 1.5 

III 5 15.4 - 1.7 

3 23 22.2 — 0.7 

357 14 10.2 - 1.3 

56 47 6.5 i-h 4.0 
109 44 59.3 

87 8 30.8 ,-+- 0.7 



103 



II. I 22 21 55.0 310 -f- 22.6 73 28 38.8 — 3.3 



II. I 
II. I 
II. I 

II. I 
II. I 
II. 1 
II. I 
II. I 

II. I 
II. I 
II. I 
II. I 
II. I 



. . II. I 

540 , II. I 

I 



59 57 17.3 
.312 18 2.4 

47 12 25.4 



418 -h I 37.1 

. . |— I 1.8 
..-hi 0.8 



954 



no 
860 

414 



o 

143 
46 

151 
49 



13 
58 
II 

24 
I 



35.2 

31.5 

31.9' 

46.3 
20.7 



31 58 20.2 

51 49 32.3' 
325 49 27.2 

284 43 1.7 

38 10 7.5 

63 31 45.0 
206 36 23.5 



417 -H 

419 - 

• • ! + 
419 - 

. . |^- 

. . '^■ 
418 ,+ 
428 '— 

437 |- 
. . -h 



438 



1+ 



0.2 
41.0 

58.7 

30.7 

I 4.7 

35.2 

1 II. 5 

38.4 

3 31.6 
44.5 

I 53.1 
28.3 



III 5 15.6 — 1.6 

3 23 21.8 \— o. I 

98 19 47.4 - 2.4 

51 19 56.6 4- 1.8 
87 8 30.7 -h I.I 
98 18 51.8 '+ 0.3 

79 41 5.3 ,+ 01 
100 8 46.6 — 2.7 

! 

83 5 16.6 4- 0.4 

102 57 5.0 i-l-15.0 

16 55 10. o 1— 1.8 

335 45 51.3 '- 0.5 
89 17 13.2 — 0.1 



No. 



For summary of the elements of reduction see page 3. 



8 
30 



114 39 59-3 
24 29 29.4 



MOONS— 



- 3.9 

-f- 1.9 



Parallax. 



ft 



46 
46 



17.8 
14.6 



Semi-diam. 



»/ 



-h 



15 
14 



2.3 
50.1 



72 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



SECONDS OF TRANSITS OVER WIRES. 



( ORRECTIONS. 



DATE. 




C 




OBJECT. 


, 3 






1 y. 






I 868. 1 






Aug. 5,1 




Moon II, N. 


' 2 


« 


Pisriuin 


1 

6 3 1 




Sun II . 


4 




Polaris. S. P. 


,51 


'/ 


Herculis 


6 

1 


A' 


Ophiuchi . 


, 7 ■ 


f 


[Trsae Mlnoris 


' 8 


// 


Ophiuchi . 


9 1 


U 


Draconis 


10 


/ 


Draconis, (R.) 


II 


/^ 


Sag^ittarii . 


12 


rJ 


Ursa! Minoris 


1 '3 


a 


Lyrae 


i 14 


61 


'Cygni . . 


15 


a 


Ccphci . 


16 


/^ 


Aquarii. 


17 


f 


Pegasi . 


7 18 


6 


Ursa; Minoris 


i^ 


I 


Aquila; . 


20 


a 


Lvnc 


21 


51 


(Fl)Cephei, S. 


22 


50 


Draconis 


23 




Aquilx, (R.) 


24 


r/ 


Sagittarii . 


1 25 


c5 


Aquilw, (R.) 


26 


K 


Aquilic . 


27 


> 


Aquilx . 


28 

1 


a 


Aquil?e . 


1 29 


/j 


Aquil'.e. 


1 30 


T 


Aquihc . 


8 1 31 




Polaris, S. P. 




. 32 


a 


Virginis 



10 



33 
34 

35 
36 

37 

38 

39 
40 

41 
42 

43 
44 

45 
46 



12 I 47 

I 48 



a Geminorum 

/? Geminorum 

/i Sagittarii . 

51 (-cphei, S. P. 

C Aquila;. 

o* Capricorni 

n Cygni . 

}i Aquarii. 



II 



f 
a 
a 



Moon I, N 
Tauri . 
Tauri . 
Tauri 
(^amelopardali 
Geminorum 

Sun I, S. 
Sun II, N. . 



(A 



T. 
1. 

F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 
F. 

E. 
E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 

F. 
F. 

F. 
F. 

F. 
F. 
F. 
F. 
F. 
F. 

't. 

, T. 
I T. 

I T. 

I T. 

T. 

I 
I 

i T. 
I T. 






I. II. ; III.' IV. V. VI. VII. VIIl' IX. Mean wire.' Inst. Sl^^^, 
I I ! I tappar nt. 



Clock 
adopted 



! Apparent R. 
Ascension. 



'it. . 

V ^ 



3 
3 

3 
3 



15.1 
03 



1.6 
S.i 



' 0.9 

5.9 

8.5 

35.0 



I7.6'ig.3;25.727.8 
2.8 4.3 10.3 12.5 

1.6 5.1 

. . 53. 025.51 5.0 

5.1' 6.9I14.717.5 

io.7'i2.4 18.620.8 

' . . 34.3 



29-936-337. 
14.6,20.8 22. 



940.5 
424.9 



m. s. I s. s. s. 

6 27.79+ 0-33 - . '-K 5-97 
21 12.54 -H 0.2H+ 5.94 -h 5.97 



' h. m. s. 

23 6 34.09, 
I 23 21 18.79 



6.2 7.2 8.414.S 
43.5 16.5 . . ■ . . 
20.2 28. 1 30. 1 33.1 
22.7^28.6 30.3 32.9 
56.1 3.7 II. I 18.8 



8 36.3^ -^- 0.33 
II 4.36 +14.48 
38 17.48 + 0.15 
51 20.57 -h 0.38 + 

59 3i-'/>— 2.851 



6.18 



-h 6.05 

-f- 6.09 

-h 6.12 

l-h 6.12 

H- 6.12 



3.7 5.5 12.2 14.4 16.623.025, 

45.4| 2.1 6, 

31.541.544 
50.1 57.1 58, 



12.5 16.9I34. 1 40.0 

12.7 15.2 25.028.3 

37-839-3J45. 848.0 

. . 53.028.0 3.0 



027.8, 
6,14. 1 
i'48.o 
«;* i.o 



12.0 



40. 

1 2. 
20. 

25. 



243. 

5 5. 

3'22. 

8 28. 

I 



345. 

915. 
724. 

229. 



2531 55- 
0119.023. 

2'28.5'3o. 
9'36-i 38. 



658.01 6 
627.5.32 
532.6, . 
240.446 



, 8. 
'35. 
47. 

! 3. 

'37- 
34. 
30. 
42. 
3- 

'33. 
'24. 



iiii. 

541. 

3'57. 
7 6. 

1 

I 
340. 

o' . . 

733. 

344. 
9 6. 

2'35 
827 



513. 
o 9. 

li 2. 

5 8. 



036.5 10 
i| 1.0: 5 
9 26.5'34 

5 18.5, . 



26.0; 3. 

. • 59- 
421. 1 23. 

5146.0! 2 

9I27. 135.043.0; 6 

I;I4. 3116.3,18. 3 24 



141.7148.250.452.5 58. 

42. 2'44. 2146. 2,48. 2 50. 

2,34.6140. 942. 944. 951. 

94Q.4 52.754.7 56.7, 3 

,5i 8.1,14.3 16.3 18.324. 

I 1 i ' ' 
.737.2,43.445.447.353 

.428. 8:35. 037. 1 391 45 



2 I- 

3 55 



958.51 0.1 



'53- 
33 



152. 053. 
056.1:57. 



936.438. 

. I . . 144. 

7' 5-3 f>- 
I 30.2|34. 

I '38. 1 40. 



. 12.0 50.024 
2, 8.3 10.416 



4.4 7 



.1 7-7II.3 
.240.844.0 



.348. 1" 0.9 

I 

. 5 • . • • I 
.1 6.7 9.3 

.2 36.3 39-5 

.713.023.3 
.6,26.328.8 

\ , 

9 0.4 3-3 

3, • • I58.5 
1 52.655.3 
o 4.6, 7.1 
7 26. 1 28.6 

.755.257.5 
•247.049-3 

.037.0' . . 
.6ji8.i 20.7 

I 



18 14.35 -^ 0.63 4- 6.13 

37 39-73- 0.50 . . 

53 28.31 - 0.18 . . 

5 48.07 + 0.61 + 6.07 

15 2.72- 5.40 . . 



O 55.61 -h 0.15 . . 

J5 23.39- 0.24 . . 

24 32.53'-»- 0.50+ 6.10 

37 38.21 -h 0.39 -h 6.20 



+ 

+ 



6.12 
6.13 
-h 6.13 
+ 6.13 
-h 6.13 



9 
I 

16 

16 

16 

17 

17 

17 
18 

18 



S 
II 

18 

51 
59 

18 

37 

53 

5 

15 



42.76 

24.95 

23.75 
27.07 

35.17 

21.10 

45 • 3^> 
34.26 

54.81 
3.45 



s. 

—61 .70 
-r CO"* 

— 6(>. 10 

— 2.10 

— 0.04 

— 0.03 

— i.«45 

— 0.01 

— 0.40 

— 0.44 
+- 0.04 

- I.2^ 



-H 6.16 21 I 1.92' 

+ 6.16 21 15 29.31 

-I- 6.16 I 21 24 39.19 



15 1.88 — 3.56 
27 56.93H- 0.37 + 
32 23.83 -h o. 12 -h 
37 20.53 + 5.01 
50 35051— 0.72 
59 16.32 + 0.19 



-h 6.16 I 21 37 44.76- 



6.59 
6.50 



0.17 
0.44 

O.CJf' 

O.Cj*> 



6.56 

6.57 
6.57 

6.57 

<>.57 
6.57 



9 50.31 -^ 0.42 . . 
18 46.24 -K 0.31 

29 42.91 -I- 0.36-1- 6.64 

39 54.71 H- 0.27 -h 6.59 

44 16.311+ 0.28 + 6.52 

I 

48 45.40+ 0.29+ 6.59 
57 37.08+ 0.29+ 6.66 



I ' 

+ 

+ 

I: 

I 

+ 6.58 
+ 6.58 
,+ 6.58 
6.58 
6.58 



+ 

+ 



18 15 4. 88 -I- 0.41 

18 28 3.87 + 0.02 

18 32 30.52 + o.(»7 

6 37 32.11 + 1.40 

18 50 40.90 — O.Cj 

18 59 23. oS A- 0.15 

'9 9 57 31 — o 'Jt' 

19 18 5313,+ o.ii 
19 29 49.85 — O.tV, 

o.<>«:> 
0.07 



II 11.85 
18 8.31 



I 



-H 6.59 
+ 6.59 



19 40 1. 561 
19 44 23.17 + 

19 48 52. 28 
19 57 43.96- 



O.C>i« 
O, Ifi 



8 0.9 3.1 5. 8. 12. 914. 917. 7, 26 3-36— 0.01+ 7.17 + 7 
O; 9.1 16. 1 17.720.7 37 6.86!+ 0.02 + 7.38 1+ 7 



44.7U6. 
2.7 . 

813.2115. 
236.238, 



2 

I26. 

34.il3S.i'40.i 48.6151, 

I14.6 17.0 18.7 24.7 26, 



40. 

57. 
35. 
I . 
21. 
48. 



443- 

61 o. 



8|48.9i55.4 57.2 59-9 

I ■ 

> •• •• ••,•■ 

3 17.4,23.625.2127.8 
540.742.847.1 51.2 
654.21 2.9, 5.2 8.8 
8'28.9'34.8 36.5 39.i 



1,44.751.253 
2 1. 8 8.210 

o'37.739-445.847 
3| 4.0, 5. 611. 914 

227.631.246.351 

4151.353.2 0.4, 3 



3 :57.4' 0.3 1.7 
. I . . ' . .117.1 



555.6, 2 
3,12. 4;i8 
9'5o.i|56 
116. 3 22 
7 56.6,11 
o; 5.i!i2 



.0 3. 
.7 20. 

.6:58. 

■524. 
.8|i5. 
.6 14. 



61 6.4 
323.0 

2| 0.9 
2:26.8 

5|2i.9 
317.3' 



8.1 10. 1 12.1 18.620.1 22.8' 
19. 321. 523. 4,25. 6, . . 



5 46.81 + 0.27 + 7.63 !+ 7 

37 20.00+ 4.931 . .1+7 

59 15.26+ 0.09+ 7.63 + 7 

10 38.56I+ 0.23+ 7.61 + 7 

36 51.51 — o. 10 . . + 7 

45 26.79+ 0.21'+ 7.60 + 7 

I 

4 53.39+ 0.211 , . + 7 

12 10.281+ 0.21 + 7.76 + 7 

20 47.96+ 0.19+ 7.72 1+ 7 

28 14.08I+ 0.20+ 7.77 + 7 
40 5i-53|— 0.46 . . + 7 
26 2.84 + 0.08 + 7.65 + 7 

I . I 

29 10.13+ 0.22 . .1+7 
31 21.38,+ 0.22' . . !+ 7 



41 
41 

53 
53 
54 
55 
56 
56 

66 
66 
66 
66 

67 
71 

75 
75 



7 26 10.76+ 0.44 
7 37 14.29+ 0.03 

18 5 54.61 — 0.12 

6 37 22.461 + o.Si 
18 59 22.89— 0.05 
20 10 46.34,— O.lVj 

20 36 58. 97 O.Oii 

20 45 34.56— 0.02 

451 26— 6S.«>r 
4 12 i8.i5|— o.o> 
4 20 55.81 — o.of, 
4 28 21.94I— o.ii 
4 40 58.84 + 0.45 

7 26 10.63 + o.2r> 

9 29 18.10' 

9 31 29.35' . . 



I. Bisections II to VI. 

3. R. A. over set E and VII. 

7. R. A. and bisections over set E. 
13.38. Wire B used. 

21. Observed over part of set C and D. 
36. Observed over wires C» and Ci. 
41. Bisections at wires II, VI. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



73 



/. 



r 

3 
4 



T 



9 
lo 

II 

12 

U 
15 

lb 
17 

IS 

20 
21 



26 
I* 



2') 

3' J 

31 
32 



54 



3<' 
.1/ 



30 

41 

42 
43 
44 
45 
4^» 

47 
4^^ 



MICROSCOPE MICROMS. 



TELESCOPE MICROMETER. 



Circle ! 
Division. 



I. 



II. III. IV. ' Rev. r. 



r. 



46 54 
33 10 



307 28 ; 
359 38 ' 

29 14 
316 36 , 

62 52 
330 2 I 

192 34 
59 54 



o 10 
o 44 

33^> 48 



12.7 
4.8 



12.8 
4.5 



2. 1-3. 



4. 



5.0 
26.5 



7.3 

28.2 



26 
25 



450 



c o 

N 



Apparent 
Zenith Dis- 
tance, South. 



E 

o 

B 
>, 



S Refraction. 



Apparent N. 
P. Distance. 



(A 

J3 

'c 

js 

tit 



tn 

c 
o 

^« 

u 

k. 
O 

U 



608 610 
367 



681 



908 II. I 46 57 4.7 433 -h I 0.4 



II. I I 33 13 32.8 433 



+ 37.0 



98 4 26.3 
84 20 31.0 



— 0.4 



10 



28.4 

4.2 
0.6 

7.6 



28.0 

2.9 
29.0 

6.4 



26.6 

27.4 
26.2 

2.4 



27.4 

27.4 

23.1 

4.3 



I 



9 23.0 


21.3 


22.4 


23.0 ' 


10 1.3 


29.7 


24.9 


25.0 


9 26.0 


25.7 


19.8 


17. 1 


10 3.5 


2.6 


25.2 


28.3 ' 


10 4.3 


2.2 


25.6 


28.0 


10 0.0 


28.1 


22.6 


23.0 


9 28.6 


27.3 


21.4 


22.7 



29 34 ' 10 3.2 1.4 24.6 



312 14 

47 10 

10 

3(16 6 



^3 154 44 



58 o 

M3 56 
46 8 
2S 32 

30 18 

32 44 

31 54 

307 28 
49 »8 

6 40 
10 30 

59 54 
3<>f> 6 

25 10 

51 48 

354 2 

48 1 3 

23 34 

23 32 
19 56 

22 36 

332 44 
6 40 

24 20 

23 48 



6.5 
10.6 

7.8 
10. o 

5.3 

6.7 

5.5 

7.8 

12.3 

11. 4 

9.4 
8.0 

8.0 

11. 5 

2.7 
29.5 

29.5 
i.o 
6.4 
2.2 

3.5 
0.4 

6.4 

9.1 

4.0 

10.8 

3.0 
4.0 



10 2.3 
9 26.8 



5.2 I 0.7 

9.5 2.8 

5.2 I 0.0 

9.2 4.5 



26.9 

1.3 
5.0 
1.2 

5.5 



4.8 


29.5 


27.8 , 


6.3 


28.8 


1.0 


6.5 


29.5 


29.7 


7.6 


1.8 


2.7 


II. 8 


5.6 


7.0 


II. 


3.8 


5.0 



8.3 

7.1 
9.7 

12.3 



0.8 

0.5 

2.7 
5.3 



2.8 

1.4 

4.0 

5.5 



10 
9 

10 

10 
10 



1 



4.9 
8.3 
3.6 

10.4 

2.5 
3.1 

29.0 
23.4 



29.4 

2.3 
28.0 

4.2 

27.5 
27.5 



18.3 



o 

2 

28 

4 

27 
26 

23 
16 



.2 

.5 
•3 
.1 

.5 
.2 

.5 
.3 



No. Baroiti. 



External 
Therm. 



Attached 
Therm. 



in. 




27 858 

20 190 

24 I . . 

26 I QOI 



923 

235 



913 



895 



29 

29 

28 

26 



15 
26 

23 
29 



29 

25 
26 

26 

I 

27 

28 I 

25 
26 

25 

23 I 
22 ' 

27 
27 



981 



141 
679 
172 



265 
670 

279 



935 



848 



389 
410 j 



465 



170 260 



270 
170 



368 
075 



O.S 1 

28.1 


25.4 
22.5 


25.1 
20.4 


27 

27 


29.7 
0.8 

6.1 


22.9 
26.5 

0.5 


1 
22.9 

26.0 

2.1 


26 

27 

28 


3.3 
2.8 

0.6 


26.5 
26.3 

24.1 


24.4 

24.9 
23.2 


24 

28 

28 



050 

636 



150 
180 

255 

362 
155 



450 
956 

688 



360 



68 1 649 



30 

27 
22 

27 

25 
26 

26 
25 



147 
175 

750 



392 
442 
191 

195 

820 
629 



486 



810 

313 
790 

638 



886 

413 
082 

969 

566 
240 

654 

218 



509 
962 

049 
272 
410 



160 290 ' . . I 200 
820 I 870 900 870 



330 
170 



200 
022 
145 

295 ' 
055 , 

34<^ 
310 

873 
576 

560 

495 

378 

655 I 

245 

085 



618 
528 
678 
230 
I 779 



893 II. 3 

995 11.3 

190 ! 11.3 

093 j 1 1. 3 



516 

• • 

631 
222 



II. 3 

11.3 

11.3 
II. 3 



285 ' II 
012 I II 
114 I II 



3 
3 
3 



307 30 57.9 

359 42 52.7 

29 17 54.6 

316 39 7.1 

62 54 36.4 
330 4 39.2 
192 36 50.8 

59 57 20.8 



o 13 35.6 

o 47 14.4 

336 52 13.9 



309 
304 
366 



— I 



-h 



II. 4 
0.9 

31.3 

52.5 



368 -I- I 48.4 
. . - 32.1 
377 -h 12.5 
..-hi 36.2 



386 -H 
393 



0.2 I 



0.8 
23.9 



I 



358 36 7.3 - 1.3 

50 49 13.0 -|-*2.6 

80 24 47 . 1 —2.8, 

7 44 35.8 - 2.4' 

114 2 46.0 —12.3 

21 10 28.3 — 3.5 I 

38 28 17.9 i— 0.8 I 

III 5 18.2 -h 1.0 ' 



51 19 57.0 H- 2.5 i 

51 53 36.4 I- 0.3 
27 58 II. 2 — 0.7 



238 I II. 3 I 29 36 34.5] 396 -H 31.8 80 43 27.5 -K O.I 



. . 11.3 312 18 0.2; 

220 I II. 3 47 12 26.7' 

170 I II. 3 o 13 33.4 

800 1 1. 3 306 9 3.2I 



430 II. 3 154 47 15.5 



11.3 

990 II. 3 

135 II. 3 

028 1 1. 3 

. . II. 3 

288 II. 3 

995 II. 3 

. . I II. 3 

. . II. 3 

838 j lo.o 

540 ' lo.o 



58 

143 
46 

28 
30 



3 

58 
21 

35 
21 



3.0 
34.5 
31.7 
i8.7 

28. 8 



483 
472 
262 
030 

388 

943 



870 954 022 



461 

• • 

285 



510 548 



lO.O 
lO.Q 

10. 
10. 
10. 

lO.O 

12.2 
12.2 
12.2 
12.2 
12.2 
12.4 

12.4 
12.4 



32 47 59-9 

31 58 20.2 

I 

I 

307 30 57.5 

49 20 54.5 

6 43 10.7 
10 33 3.6 

59 57 175 
306 9 1.6 

25 12 43.0, 

51 49 1&.8, 

354 4 49-8 
48 20 53.7, 

23 36 7.7 

23 34 54.9, 
20 o 17.01 

22 38 51.3 
332 47 36.6, 

6 43 13-41 

24 23 18.6; 

23 51 40.2 



375 



— I 
-h I 

-h 

'- I 



1.3 3 23 20.1 

0.2 98 19 48.1 

0.2 I 51 19 54.8 

16.2 357 14 8.2 



— 26.3 76 19 32.0 



'-I- 



I 29.2 
40.6 
58.1 
30.4 
32.7 

35.9 
34.8 



109 10 53.4 
87 8 27.3 
97 18 51.0 

79 42 5.3 
81 28 22.7 



- 1.3 

- 1.6 

+ 0.5I 

- 1.5 ' 

I 

0.0 

— 1.0 I 

— 2.1 
'— 0.4 

-h 0.3 

— 0.8 



83 54 57.0 - I.I 
83 5 16.2 ,+ 0.3 



. . — I 10.2 
233 + I 2.8 



346 + 



36S 
370 



-h 
-I- 1 



380 + I 



413 



408 
406 

383 



4- 

-h 



-h 



6.5 
10.3 

36.0 
16. 1 
26.2 
10.8 

5.8 
2.7 

24.6 
24.6 
20.4 

23.4 
28.9 

6.6 



358 3f) 8.5 
100 28 18.5 

57 49 38. 4 
f>i 39 35.1 

III 5 14.7 

357 14 6.7 

76 20 30.4 

102 56 50.8 

45 II 5-2 
99 28 17.6 

74 42 53.5 
74 41 40.7 
71 6 58.6 

73 45 35-9 
23 53 28.9 
57 49 41.2 



0.5 
1.4 

1.0 

1.0 I 

2.5' 

2.3 

1.2 

0.7 I 

1.7 1 
1.0! 



4- 1.7 
-h 1.0 
2.8 
0.9 

-H 1.6 



-I- 



349 + 



25.1 75 30 4.9 - 3.5 
24.5 74 58 25.9 - 3.5 



For sumnian' oj the eh'tumts of Vi'duction sec fnge 3. 




MOON'S— 



Parallax. 



Semi-diam. 



39 27.6 
22 57.5 



-h 14 48.3 
+ 15 47.3 



10 



74 



OBSERVATIONS WITH THK TRANSIT CIRCLE. 



DATE. 



i86S. 
Aug. 12 






13 



I 

2 

3 

4 



6 

7 
8 

9 

lO 

II 

12 

13 
14 
15 

i6 

17 
iS 

'9 I 

20 j 

I 
21 

22 

23 
24 
25 

26 
27 
28 

29 

30 

31 

32 

33 

34 

35 
36 

37 
38 

39 
40 

41 

42 

43 

44 

45 
46 

47 

48 

49 
50 



OBJECT. 



• 


1 


kd 




u 


• 




*^ 


ka 


4= 


U 


^ 


Obs 






' 



SEC ONUS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



I I 
I. II. III.' IV. 



V. I VI. 



' I I 

VII. VJII; IX. Mean wire.: Inst. 



I 



Clock I Clock 
appar'nt.,adoptcd 



« Caniim Venal. 
Polaris, S. P. . 
ji Librx . 
a Coronae Boreal is 
51 Cephei, S. P. . 






K 

a 
f 
3 



d 



a 



Sagittarii 
Aquilse, (R) 
Draconis, (R.) . 
Aquilx, (R.) . 
Aquilae 

Aquila; 

Anonymous . 
Calypso 

Cephei . . . . 
Capricorn i 

Ursac Majoris, S.P. 
Cephei, (R.) 
Pegasi . 
Ceti 
Jupiter, I. S. 

Jupiter II, N. 
Piscium 
Neptune 
Polaris . 
Moon II, N. 

Tauri 
Ononis 
Venus II, S. 
Venus N. . 
Canis Minoris 
Geminorum 



Sun I, N. . 

Sun S. . 
a Canum Venat. 

Polaris, S. P.. 
a Scorpii . 

i Ophiuchi . 
j3 Draconis . 
w Draconis 
a Lyra; 
51 Cephei, S. P. 

50 Draconis 
d Sagittarii 
67 Piazzi, S. P. 
K Aquilae . 
a Cygni . 

C Cygni . . 
I Draconis, S. P 
f Pegasi . 
Anonymous 



T. i 

T 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
F. 

F. 
F. 
F. 
F. 



I 



3 
3 
3 



3 
3 
3 



28.23i.433.54i.4,4404^>-5 54.456.5 59-^ 
. . I . . 59.0 . . 12.0! . . I . . I . . I34.0 

35 -3 37.^39-4 45- 5 47-6 49. 6 55. 9 57. 4' 0.1 

45.448.249.956.759.1 1.3 8.2| 9.912.7 

. . ' . . 43.0 1. 019. 037. 053.0 . . . . 



45-548. 350-25f>-659-o 1.3I 8. 210. 012. 9 

2.3 4.8 6.5 12. 614. 8 16. 923. 1124.827. 5 

55.2! 2.0 5.921.627.1 32.548.3'52.3 59.3 



29.231.833.4 . . 



m: 

49 43 

11 II 

9 47 

28 59 

37 J8 

A(i 59 

59 M 

12 27 



s. 



I 



3 
2 



J40.943-545.2I51. 5, 53. 555. 5 1-7 3.3 5-8 

34-837. 439-245-247. i|49.4| . . I . . 
40.842.6,49.351.553.659.6 1.5 

I _ _-/: _->- _'_- o. ^ c3 



29 41 

39 53 
45 47 



4.2. 



• • I • • 



7.7'i6.725.953.8j o.8|i2.9; 



3 
3 



5 
13 



51 
16 



30.1I31.738.240.242.348.7 50.5 53.2 19 40 



; 5-959-355-339-433-7.28. 312. 2| 8.3 1.51 
.55.81 1.5 4.5 17. 822. 026. 339. 642. 748. 4 
24. 3 26. 9.28. 5 34. 6I36. 7 38. 8 44. 8 46. 3 49. 2 
38. 641. 142. 849. 351. 653. 7 0.1 1.9; 4.8 

6.2' 7.7,10.4 



3 
3 



F. 
F. 

F. 
F. 



F. 

F ' 

* • I 

F. 

F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 



45.748.249.7 . . 
Ill 

. . ! . . 57.059.1 i.i 
{15.8 18.5 20.1 26.1 28.1 
131.634.335.942.044.046.1 52.253.856.4 

• - 15.0137.5: 2.026.5. . . I . . 

. . 50.854.1 55.215^^.357.4 4.1 



3.1 5.2j . . 
30.1 36.338.0 



40.5, 



58 
15 
37 
36 

53 

54 
I 

5 



33 
22 

36 

51 

57 

I 

28 

44 



35.938.7,40.447.450.052.959.0 0.6 3.7 
55.958.41 0.0 6.0, 8.1 10. 1 16.2 17.7 20.3' 



25.627.729.8 



2.9 

• • 

46.8 



32.1 



5.5 7.1 13.1115.1 
5.7 8.3 



34.138.5 



47.952.1 54.1 



17.1,53.1 
10.5 15.2 



40.1 



54.8 
17.0 



55.8 



57.8 



0.5' 4.6 



. . 14.IJ18.019.320.5 
. \ 1.5^43.012.5 50.026.0 . . 



42.7. 



II 38 
3 24 

17 49 

25 8 

9 29 



57.6 
19.9: 



32 15 

37 5 



6.5 33 56 



21.7 



58. 8| 1.4 3.210.112.514.521.423.125.8 



. . I 7.8 10. 012. 2 14. 5116. 7 21.322.8 



0.2! 4.6: 7.117.1,20.523.933.6:36.3 
3.4!io.4|i5.3- . . 



I . 



6.1. 9.311.5119.221.824.432.2134.3 
33.841.8, 7.8 . . 



25.6 
40.4 



37.7 



.33.3'4i.7|50.i 



8.3 



. . ,48.4 
2.6 



50.5152.7 
50.145.1 



49 42 
II 12 
21 12 

18 12 
27 20 

37 37 
32 22 

37 19 



290,31.6,33.2 39. 1 41.343.349.6 51. 1 



33-3'37.i39.2|47.950.8!53.4 



57.1 



9.9:50.940.8 . . 



2.1 



4.1 



• 


a 


51 


33 


58 


9 


9 


48 


• 


■ 


16 


56 


53. 


51 


29 41 


7. 


7 


36 


50 



. . 22.924.8:27.6 



• • I • • 



■ • I • • 



23 . 8 26 . 2 28 . o 34 . 1 36 . 2 38 . 2 44 . 7 46 . o 48 . 6 
. . I . . '46.248.551.252.6,54.8 . . 

I . 1 . i I I 



7 13 
17 42 

37 36 
45 50 



97 -H 0.02 -^ 7.86 -f- 7 



37 4-i3.8o| . . .+ 7 

62 -h 0.37 ->r 1 .^(> -+-7 

05 H- 0.13-1- 7-88 -f 7 

76-1- 7.13 • • -1^ 7 

I I 

II + 0.50 H- 7.91 -\- 7 

81 -f- 0.26; . . ,H- 7 

13- 0.44' . . -H 7 



56-}- 0.36 -I- 7.98 + 7 



I 
43 + 
28-h 

284- 
81 - 

25,+ 

I 
\ 

77 + 
07 - 

68-1- 

54 + 
98 + 



0.25,-1- 
0.381 

0.43 
1.19I 
0.44,-f 

1.07! 
0.26 
0.251-h 
0.44 -I- 
0.29 



7-87 1+ 7 
. . '+ 7 
. • + 7 
• . '+ 7 
7.84 1+ 7 



7.92 
7.80 



10+ 0.29 
17 -I- o.2t^; 
03 -J- 0.28 
78 -13.25' 
48 -h o.ii 



1+ 7 
+ 7 
+ 7 
+ 7 
+ 8 

-+- 8 
+ 8 

,+ 8 
!+ 8 



74 + 0.05-1- 8.11 in- 8 



08 -h 0.21 
92 -h 0.12 



-h 8.20 :-i- 8 

'+ 8 



141-f- 0.18 -h 8.39 -h 8 
92 -I- o.o^>-|- 8.34 -h 8 



23 -♦- o.ii. 



8 



53- 0.03 -h 8.34 

54+9-77. • • . " 
31. -h 0.31 -h S.62 |H- 8 



8 
+ 8 



25,+ 0.30+ 8.47 -h 8 

41 — o.i5| . .1-1-8 

41—0.46. . . l-f 8 

89— o.o2J-»- 8.49 j-h 8 

97 + 5.03 • -1+8 



74- 0.74I 
46-1-0.27 

54! -f 0.76! . . 

30+ 0.2I|-|- 8.38 

62 — 0.07 

51 -I- 0.03.-1- 8.41 

34 -I- 1 . 79I . . 

20 -h 0.14 + 8.51 

66 -»- 0.33I . . 



+ 


8.47 


-h 


8.47 


+ 


8.47 


+ 


8.^8 


+ 


8.50 


+ 


8.51 


+ 


8.51 


+ 


8.52 


+ 


8.53 



80 

Si 

84 
84 
90 

90 
90 
9« 



1 

Apparent R. 
Ascension. 


2: «^ 

'c C 


h. m. s. 


s. 


12 49 51.79 


— 0.05 


I II 32. 9S 


f 1 . 0- 


>5 9 55-^3 


— O.U3 


15 29 7.02 


— 0.(14 


6 37 33.79 


i- 1. 31 



18 47 7.51 — <^. 03 

18 59 22.97 ^ 0.05 

19 12 34. (xj -f- 0.25 



91 19 29 49.83 — 0.07 

I 

19 40 1.59 + 0.05 

«9 45 55.5i>| 

20 5 59.<>3 

20 13 23. 54,+ O.sC 

20 19 48.61 +- o.oS 

8 58 42.77 -+- 0.25 

21 15 29.75' O.iXi 

21 37 44.8S + o.oi 
o 36 59-97 -»- 0.22 
o 54 6.27 . . 



91 
92 
92 
92 
92 

93 

94 

95 

99 
00 

00 
00 
00 
00 

19 

20 
20 
23 



54 9.39 

1 I 3<>.45 + 4-^^ 
1 5 52.31 • • 
I " 33.53+ 1-22 
5 3 33.58—70.23 

I 
5 17 57.99+ o.cx? 
5 25 16.49,— 0.02 
7 9 38.27— 1.53 



24 
24 

28 



7 32 23.56— 0.17 
7 37 14.22 — 0.10 



35 
36 

42 

44 

44 

44 
46 

46 



9 34 4.62'-l-65.57 



12 49 50.85 -»- 0.02 
I II 30.67 — 2.02 

16 21 2I.04J— o.iS 

17 18 20.99— 0.03 
17 27 28.70 -h 0.05 

17 37 45-39,— o.ot' 

18 32 30.331— 0.03 

6 37 33-46+ o.sg 

I 

18 51 41.47-f- o.<jo 

19 9 57.20j— 0.14 

7 17 5.77- 0.76 

19 29 49.99 -I- o. 10. 

20 36 59.05' "I- o. 10 

21 7 22.05 -H 0.0*) 
9 17 52.64 — 1.57 

21 37 44.861- 0.01 

21 45 59-52' . . 



12.13.27.50 Wire A used. 
14.39.41.42.44. Bisections at sets B and D. 
25. Bisections at wires II, VI. 
34. R. A. over set E. 
37. Bisections at Es and VII. 
44. Seems one rev. wrong in N. 
50. Obser\'ed for Thalia. 



P. D. 



OB8EBVATION8 WITH THE TRANSIT CIBCLE. 



75 



y Circle 
c Division. 



/, 



I 

2 

3 

4 

5 



S 
9 I 

10 

II : 
12 

»3 

M I 
15 

■6! 

I 

n 

iS ' 

19 1 
20 

21 

m ^ 

23 

24' 

2<; 



26 

27 
2S 

29 

30 

31 



32 

33 

34 

35 
36 



J/ 

3^ 

39 
40 

41 

42 
43 
44 
45 
46 

47 
V 

49 1 



MICROSCOPE MICROMS. 



359 48 
47 42 

306 6 

65 16 

154 44 
208 30 

143 56 
46 8 

28 32 

49 22 

56 46 
321 32 

57 36 

286 34 
203 6 

29 34 
57 32 
34 42 

34 42 

33 52 

33 36 

310 16 

21 8 

10 20 

39 M 

22 44 
22 44 
33 16 
10 30 

24 6 
24 38 

359 48 

307 28 
64 56 

62 52 

346 26 

330 2 

o 10 

306 4 

323 34 

2S7 36 

46 S 

354 2 

9 8 
300 46 

29 34 
67 28 



TELESCOPE MICROMETER. 



I. 

r I* 
6-3 

7.3 
2.2 

5.3 
29.6 

9 23.0 

13.2 

18.6 



9 
9 



II. 

II 
4.7 

8.7 
3.0 

6.6 

0.0 

26.5 

14.2 

19.8 



14.3 


14.3 


14.2 


14.0 


8.3 


9.1 


9.6 


9.5 


8.7 


8.5 



8.3 

10. 1 

8.7 

12.8 

6.6 

6,6 
9.2 
8.4 

9-5 
29.2 

25.2 

23.2 

6.9 

6.9 

5.8 

•II. 8 



II. 7 

7.5 
10 1.6 

9 29.9 
9 26.5 

10 4.1 

9 27.8 

0.6 

4.7 
2.1 

2.2 

5.1 
8.0 

6.0 ; 

5.r : 
9.9 

2.4 
2.9 



8.5 

13.5 
8.6 

12.9 

6.8 

6.8 
8.9 
9.0 

9.7 
29.1 

259 
22.4 

7.3 

7.3 

5.4 
10.5 

8.8 
5.4 

0.3 
29.8 

26.4 

3.3 

24.7 

255 
2.7 

0.6 
i.o 

4.4 
7.2 

3.8 

3-3 
8.2 
0.9 
0.6 



III. IV. 



Rev. 



I. 



// 



// 



28.8 I 28.7 



2.1 



0.7 



0.1 

24. 5 
21.0 

7.3 
12.4 

7.6 

7.5 

2.3 

5.1 
2.0 

3-3 
7.0 

2.0 

5.3 
29- 5 

29.5 
2.0 
2.0 

4.5 
23.6 

19.9 
16.2 
0.7 
0.7 
2.4 
5-7 



T.3 
26.4 

16.8 

6.2 

12.2 

8.1 

71 
3.1 
5.1 

3-5 

4.4 
5.2 
3.0 

6.5 
0.7 

0.7 

2.7 

2.4 ' 
6.0 i 

24.5 

19-3 

15.9 
0.8 

0.8 

2.8 

5.4 



2.5 i 2.5 

0.0 j 0.0 

25.6 23.3 



I 



25-5 
19.2 

27.8 
20.0 
24.6 
27.9 
26.3 

27 >7 

29.7 

0.4 

28.9 

26.9 

3.9 

24.8 

24.5 



25.6 
17.4 

26.4 
19.0 

24.4 
27.9 

26.2 
27.7 

29.9 

0.4 

28.7 

28.2 

3.9 

25.1 
24.6 



No. ' Barom. 



External 
Therm. 



in. 




Attached 
Therm. 



25 
22 



28.3 28.6 27 



244 



27 
26 

32 

28 

24 

26 

25 
26 

25 
21 

28 

31 

29 

28 

31 

34 
24 

25 

28 

28 

34 
39 
32 
36 

25 
26 



25 
25 
27 
24 

28 
25 

• 

25 
19 

26 

21 

25 
28 

23 I 

25 
29 
24 



870 
025 



510 



2. 



3. 



201 
628 



439 278 



852 
830 
186 

• • 

651 

166 

738 
208 

• • 

640 



622 


700 


642 


532 


• ■ 


043 


• • 


820 


210 


310 



022 



090 
562 



343 430 I 280 



643 



820 



789 
698 
966 
610 



683 
856 
622 



> • 
• • 

059 


871 
536 

138 


• • 

• • 


• • 


• • 


267 


• • 

601 

lOI 


• ■ 

531 
191 


• • 



643 
946 

• • 

018 

345 

438 
460 

20 1 



328 
053 

428 



425 






e o 
N 



«U 



Apparent 
Zenith Dis- 
tance, South. 



I 

S 

o 

E 

C/5 



Refraction. 



ifl 



lA 



// 



12.4 

12.4 

12.4 
12.4 

12.4 
12.4 

12.4 




12. I 

12. I 
12. I 
12. I 

12. I 
12. 1 
12. I 
12. 1 



070 

788 


888 


12.4 
12.4 


200 


• • 


12.4 


774 
680 


■ ■ 
• • 


12.4 
12.4 



// 



12.4 359 51 36.9 



306 10 4.1 

65 18 54.1 

154 47 15.9 
208 32 0.3 

143 58 35.0 
46 II 31. I 

28 35 12.6 
49 28 2.9 

56 51 50.6 
321 35 21.6 

57 30 25.9 

286 36 37.9 
203 7 51.4 

29 36 33-8 
57 34 33.5 
34 44 2.6 

34 43 16. I 

33 55 45.8 

33 39 24.9 
310 18 36.4 

21 10 39.8 

10 24 1.8 
39 16 48.9 

22 45 34.7 
22 44 45.6 
33 19 26.6 
10 33 4.7 

24 9 56.3 
24 41 34.0 

359 51 38.7 

307 31 0.8 

64 59 50.2 

62 54 47.4 
346 29 31.2 

330 4 39-9 

o 13 34.2 

306 9 4.3 

323 37 16.7 

287 40 25.1 
46 II 29.5 

354 4 52.1 

9 " 4.3 
300 49 24.1 

29 36 33.2 
67 34 27.9 



47 46 12.71 362 



437 



// 



— 0.1 



-h I 1.2 



— I 17.2 



2 



444 -»- 

444 t- 



448 



453 






- 3 



458 

457 + 

. . + 

485 4- 

. . -+- 



492 
468 



466 
422 



412 
371 

• • 

339 

• • 

395 
427 

433 

458 

■ • 

460 
468 

• • 

482 



-f 



I 



For summary of the elements of reduction see page 3. 



-+- I 



— I 

4- 

4- 
+ 
-+- 



+ I 



— I 



2.5 
26.7 

30.8 

41.3 
590 

30.9 
6.2 

26.7 

45.0 

28.9 

8.8 

24.3 

32.3 
29.8 

39.6 

3^-7 

38.5 
38.1 

7.4 
22.1 

10.5 

46.5 

23.7 
23.6 

37.0 

8.3 



-»- 25.0 

-h 25.6 

— 0.1 

— I 12.0 

H- I 59-5 



49.8 
13.6 

32.5 
0.2 

17.6 



- 41.9 



2 56.7 

59-4 

5-9 



+ 9-2 

- I 35-5 

+ 32.5 

+ I 17.6 



No. 



Apparent N. 
P. Distance. 



// 



50 57 58 
98 53 35 

357 15 8 

116 27 17 

76 19 32 
12 33 50 

87 8 27 

97 18 51 

79 42 4 
100 35 30 

107 59 38 
12 40 57 

108 38 16 

337 19 50 

27 57 5 

80 43 27 

108 42 24 
85 51 3 

85 50 17 

85 2 45 

84 46 24 

1 24 50 

72 17 23 

61 30 33 
90 23 56 

73 52 19 
73 51 30 
84 26 24 

61 39 34 

75 16 42 
75 48 20 

50 57 59 

358 36 10 
116 8 10 



114 

37 

21 

51 

357 



2 

35 



58 
38 
10 28 

19 55 
14 7 



14 42 56 

338 43 49 
97 19 50 
45 n 7 



60 

351 
80 

118 



8 34 

9 
26 

6 



54 
43 
42 



I 

I 

8 
o 
I 

5 



o 

5 
2 

2 

I 

5 
6 

6 

4 
8 
2 

5 
8 

8 
o 

9 

4 
8 

6 

6 

9 
o 

6 
1 
4 

7 

8 

9 
7 



.- c 

c o 

^ u 

•"■ o 



II 
-f- 0.4 

0.0 

- 0.5 

* 

-f 0.5 
-h 0.6 

- 3.3 

- 1.4 
+ 0.2 

-»- 0.4 

- 3.6 

- 0.6 
-h 0.8 

- 0.3 

- 4.3 
-+- 0.9 
-+- 0.3 

- 1.2 

- 1.2 

-27.3 

- 0.2 

-h 0.2 



- 1.0 

- 1.8 

- 8.8 

- 8.8 

- 1.4 

- 2.1 

- 3.5 

- 3.6 
4- 2.1 

- O.I 

-f I. a 

0.0 
-H.2.1 

— 2.0 
4- 2.5 

- 0.5 

- 6.5 

4-17.5 

— 1.0 

4- 1.4 

4- 4.4 
-0.3 
+ 0.6 



MOON'S— 



25 



Parallax. 

/ // 
— 21 2.1 



Semi-diam. 



// 



4- 16 2.9 



OBSERVATIONS WITJI THE TRANSIT CIRCLE 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



'L 'i 



: V 






4 

5 



o 

* • 
1 = 



I? 
I * 

2>j 

2f 

22 

2:* 

24 
2' 

27 

2- 

2'/ 

32 
34 

IS 

37 
3- 
V/ 
A^* 

4» 
42 
43 
44 
1^ 

4^' 
47 
4^ 
4'/ 
'/' 
f I 



A 

A 

'1 



f. 
A 



n 

a 

i 



a 



<.>HJECT. 






(£ 



I ' g I I. II. .111.1 IV., V. VI. VII. Vlir IX. Mean wire. Inst. . ^^»«^\' Clock , 
O ^ I ' ' appar nt. adopted. 



Apparent R. 

Ascension. 






ZZ 'J 



- 3 



Ccrt-s 

I'isciH Australi 
F'iscium 
Pise ill ni 
C.is«iiopcx . 

Jupiter I, S. 
Jupiter II, N. 
Polaris . 
M<x)n II, N. 
Venus 11. S, 



W-nus, N. . 

<«crnini)runi 
•: Canis Minoris 
I licminorum 

Mcrrurv, \i enter) 



^■.ii I . . 
"**jn IK N. . 
Ilraronis. (R.) 
Dra'-onis, (R.) 
Sjifiiiarii . 

Siiriti.^rii . 
IfsH; Minoris 

A'^uihf, (R.) 
S.i;/^illarii 



I)r.ironis . 
A'^uihf, (Rj 
Aqijil^f: . 
A'^iiil.'f, 'R.) 
A']uil»; . 

A'l'iH^fr . 
( aiii«. Majons 
( anis Majoris 
yUxm II 
\'*'nus 11, .N, 

Venus S. . 

<}<:nun(jrnm 

('ATlis .Minoris 

iirniinorum 

M ert: u r y 11,^ cv n te r) 



Sun I, N. . 
Sun II, S. . 
I^'onis . * . 
Canum V%;nat. 
Polaris, S. P. 



F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
E. 
E. 

E. 



* A'|uihr . 
Hesprria 
/ A'|u»hr , 
< alyps*; 
- < apn« orni . 
/ |Mpliini.(R.) 



E. 
E. 



E. 



E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 
T. 



I m. s. s. 

38.541.143.049.951.854.2 0.9 2.5 5.3 23 51-91+ 0.31 



s. s. li. m. s. 

. 4- 8.54 22 24 0.76 



57.9 0.5 2.0| 8.1I10.5 12.4 18 

5»-353. 855-2 1.6 3.8 5.712 

I . . ' 0.6 4.5 12 

I 

38.1 40.342.1 58 

.... 49--15I. 453. 355-357 

• • ..I.. ..|.. 10.5 9 

4.6 7.4 9.1 15.7 17.9 20. 1 26 

19. 1 21.723.329.631.733.940 



47.5 50.5 52.459-^' 1-9 4 
2.4 5.1 6.012.714.710 

51.754-55^.3 3-2 5.5 7 
. . . . 36.238.540.643 



39-«4i. 443. 1,49. 4 51.453 
to. 8 17.023 

5.6 10.012.I122.1 25.1 28 

'41 . 5 44 



I 



. . |ii.5 14 
,19-5-55.029 



5.7 8.1 10 
i.o 3.8 5.21II.5I13.615 
35-037. 639-445. ^48. 050 



29.137 

. . 39.841.843.8I45.947 

28.330.8 32.438.540.642 

40.042.544.050.252.254 

1.3 4.1 5.511.8,13.816 

30. 933. 535. 141. 043. 145 
.... 12.2 14.5 16.8 19 

3 38. 241. 142. 829. 7'5i. 954 
. 30.232.934.541.143.445 
3 29.332.133.740.0,42.144 

' • ; 

• •• •• •• •• ••• 

. 46.950.1 51.859.1 1.5 4 
3 2.0 4.6,6.212.314.316 
. 51.154.155,8 2.9I 5.2 7 

2 9.5 12.0 13. S 20.2 22.5 24 

I 

. 12.615.217.023.2125.427 

. . . 31.833-835.938.040 

6.0 8. i|io.2 12 

3 26.229.130.939.041.544 
7.046.0:25.0 o 

. 27.930.432.138.1140.342 

3 44. 1 46.648.4 54. 4'5f». 5 58 
. 30. 4 33 034. 5 40. 6 42. 6 44 

3.2 20.122.724.330.832.835 
. 26. 1 28.630.3 36. 638. S41 

. 34.837.559.1 . • 



2 II 
722 
914 

147 

. ,48 

6 o 

436 

538 
946 

7 16 
ot 1 

515 
822 

156 

139 

851 
7I4S 

2 O 
022 

151 
2.21 

2; I 

852 

250 

I I • 

1 II 
322 
414 

631 

I 
I 

5 33 

144 

3T4 
1 52 

034 
448 

6 5 
651 

141 
147 

55 



420.1 22.7 
013.4 15.8 

I 14-519.3 

559-8 2.2 
5 • • . . 
o 11.056.0 
728.531.2 
342.044.7 



21 10.29 -h 0.15 + 8.46 4- 8.56 
33 3.624- 0.15-}- 8.44 -I- 8.56 
32 57.33- 0.19 . . 4- 8.58 



53 

53 
II 

5 
10 



50.174- 

53-38-1- 

33-05 - 

17-9^ + 
3i-Si -h 



0.16 
0.16 
9.46 
0.04 
0.04 



+ 8.59 

+ 8.59 

-h 8.59 

+ S.84 

+ 8.86 



23 21 19. OC. t 


o.U 


23 33 12.33 t 


O.IO 


33 5.72^ 


o.<o 


53 58. 92 


« 


54 2.13 


• • 


1 II 32. iS — 


O.^J 


6 5 26.70 


72,02 


7 10 40.71 — 


1 . 50 



5 13.4 16.6 
824.427.1 
8 16.5 19.5 

1 48. 85 1. 5 

750.453.2 
1, 1.6 4.3 

541.750.1 
540.644.9 
247.548.6 

1 17.1 iS.i 
o . . I . . 

2 17. 1 20.3, 
023.726.3 

558.1 1.0 

! I 

842.545.01 

953-455.9 
850.353-0, 
5i 2.1 4.5 
2 23.626.2 

4,52.955-3' 
5 • • . • 
o, 2.6 



454.1 

752.3 

• • 

I 13.0 
524.1 
3 16. 1 
132.8 



5-6 
56.91 

54.9 



7 35-3 
246. 1 

4 . . 
054.0 

01 . . 



650.252.7 
06.4 9.1 

1,52.555-2 
543-445-6 
5 49 . 1 51.8 
857.4 0.2 



2(» 1.96+ 0.01 -h 8.64 -4- 8,87 

32 14.72+ 0.06 -+- 8.95 4- 8. 87 

37 5-54 -i- 0.02 H- 8.78 4- 8.87 

43 38.49 -f 0.04 . . 4- 8.89 



36 40.43 4- 0.05 

38 51.54 -H 0.05, 

44 10.24 -♦- 0.06 

53 25.274- o.oc) 

57 13-13 -H 0.14-1- 



. -i- 8.91 

. 4- 8.91 

. -h 9.07 

. . f 9.07 

9.14 4- 9.07 



5 45.364- 
14 54.00 — 
45 5.624- 
59 13.66 -♦- 

9 47-94 + 

12 25.38 — 
18 43-78 + 
29 40.60 4- 
39 52.244- 
44 13.83-1- 



48 

53 

3 

9 
11 



16.21 26 
26.6 32 

19.1" 37 
35-61 51 

'37 -8| 

48.6 

I 

57.6, 



43.14 + 
16.844- 
51.90 + 
43.48 + 
42.14 + 

• • 

1.53 + 
14.32 + 

5.11 + 
22.46 4- 



o.ii + 
1.03' 

o.oi 4- 
0.12 

O.II| 
0.12i 

0.13 

o.o<j 4- 

0.13, 
0.06 4- 

I 

o.o6«4- 
0.20 + 
o. 19 
0.07, 
0.07 

• • 

0.03 4- 
o. 10 4- 
0.04 4 
0.07 



9.20 

• • 

9.04 



9.20 

• • 

9.20 

9,06 
9.26 



9.07 

9-33 
0.21 



40 25.30 4- 


o.oS 


42 35-^)4 + 


o.oS 


42 10.204- 


O.oS -h 


49 41.60 4- 


o.oi 4- 


11 22.08 4- 


3.83' 


29 40.304- 


0.13 4- 


43 56.57 + 


0.14, 


48 42.72 4- 


0.10 4- 


3 32.92 4- 


0.161 


19 38. 88 4- 


0.16 t- 


26 47.47 + 


0.16I 



9.38 

9.21 

• ■ 

9. -45 
9-44 

■ • 

9-50 



7 26 10.S4 -^ 0.43 

7 32 23.O5 — o.io 

7 37 M-43+ o.oj 
S 43 47.42 



9 36 49.39 

9 39 0.50 

17 44 19.37 

17 53 34.43 
17 57 22.34 



0.01 
o.rj? 
O.lo 



4- 9.0S 

4- 9.08 

4- 9.0S 

4- 9.0C) 

+- 9.10 



4- 
4- 

4- 

4- 

I 

T 

+ 

+ 

4- 

4- 
+ 
+ 

4- 
+ 



18 5 54.55 — 0.14 

18 15 2,05 — O.IO 

18 45 14.71 -I- o.c^i 
iS 59 22,87 — t).oi 

19 9 57. 15 — O.lU 



4- 9.10 19 12 34.36+ o.o; 

4- 9.10 19 18 53.0()4 0,10 

-h 9.10 19 29 49.79— O.IO 

4- 9,11 ■ 19 40 1.4S— o.c.V) 

4- 9. II 19 44 23.00— o.o> 

4-9.11 19 48 52.31 4- 0.05 

4- 9.1S 6 53 26.22— o. lu 

4- 9.18 , 7 4 1.27 — 0.23 

[;.I9 7 9 52.74 -73. '>" 

;}.I9 I 7 II 51.40— 1.4^ 



19 7 26 10.75 + 0,32 

19 ' 7 32 23.61 — o. IN 

20 7 37 14.3? — 0.01 
23 8 51 31.76 — 0.21 

26 9 40 34.64 

26 9 42 45 -2v'^ 

28 II 42 19.56 — OJ") 

31 12 49 50.92 + O.II 

32 I II 34.23 -H 0.13 

46 19 29 49,80 4- 0.01 

46 19 44 6. 17 

47 , 19 48 52.29 4- 0.03 
47 20 3 42.55 . . 

47 20 19 48,51 — 0.03 

48 20 26 57.11 4- 0.13 



1.47 



4«;. Wire A used. 
H. Observed over wires C^ and Dr.. 
20,21.26. R. A. observed over set E. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



77 



I I Circio 
£ Division. 

I 5 ' 



MICROSCOPE MICROMS. 



1 

n 

3 
4 

5 



S 
9 

10 

II 

12 

13 

K 

i6 

lb 

19 
20 

21 



23 



26 
27 

2^ 
2.) 
30 

31 
32 

33 
34 

35 

36 

37 

39 
4'> 

4T 
42 
43 
44 
45 

4^ 
47 
4'^ 
49 



I 



64 22 
(X) 6 

33 10 

33 54 

343 2 

34 42 
34 42 

19 48 

22 38 
22 3S 

6 40 
33 16 
10 30 
19 44 



24 26 
213 16 

i^;2 34 
69 12 

59 54 
312 14 

5 3f> 
154 44 

58 u 

331 24 
143 56 

46 8 
\^\ 22 

30 18 

32 44 

67 34 
64 58 

22 36 

22 36 

6 40 

33 i^ 
10 30 

20 6 

24 46 

25 16 

23 30 
359 48 
307 28 

46 8 

49 34 
32 44 

56 58 

57 26 
151 56 



I. 



r. 



2.4 

2.3 
5-2 

2.4 

5.0 

3.4 
3.4 



10 



II. 



1.5 
1.3 
3.9 
1.5 

2.5 

1.6 
1.6 



III. IV. 



0.8 
4.3 

4.3 
4.8 

0.5 
4.7 
5.3 



9.8 

2.5 

9-5 
5.0 

8.2 
9.2 
9.8 

5.8 
9.8 

9.2 

5.2 

I0.5 

7.5 
9-5 

9.8 
2.2 
2.0 

17.0 

17.0 
10.3 
10.7 
9.1 
II. 8 



10 15.5 

9 27.3 
12.4 

II. 7 

12.0 

8.1 

7.2 

"5 

9-5 
7.0 

5.3 



29.8 
3.0 

3.0 

3-8 

29.0 

4.4 

3.8 



7.5 
4.3 
9.8^ 
4.2 

7.3 
6.6 

7.6 

4.5 
8.2 

7.8 
6.5 

9-3 
6.5 
8.0 

7-4 

1.7 
i.o 

15.8 

15.8 

9.2 

10. o 

8.5 

10. 

14-5 
24.2 

10. 1 
10.5 

11.3 

8.5 

6.7 

10.7 

9-4 
6.7 
5.3 



II 

25.5 
24.0 

28.0 

25.0 

27.4 

25.8 

25.8 



24.8 
27.0 

27.0 

29-5 

23.5 

28.8 

28.8 



0.7 

0.0 

5.0 

28.0 

2.4 

3.2 

3.1 
0.2 

3.2 

4.0 
0.4 

3.4 

1.5 
2.4 

1.0 

25.9 
24.9 

9-5 

9.5 
3.3 
4.5 
3.5 

4.8 

8.4 

195 
3.0 

4.6 

5.8 

1.0 
0.1 

30 

1.8 

29- 5 

28.5 



25.8 
24.6 
28.7 
24.9 

27.3 

24.6 
24.6 



TELESCOPE MICROMETER. 



Rev. 



25.3 
27.7 

27.7 

29- 5 
23.8 
29.2 
28.4 



3.0 

27.8 

3.0 I 

28.3 I 

2.5 

4.3 

1.8 

27.0 
2.8 

3.8 

28.4 

5.0 

0.2 

3.4 

1-5 

27.3 
27.6 

10.9 

10.9 
4.6 
5.0 

4.5 
6.4 

7.2 
16.2 

4.3 
5.4 
7.3 

3.8 
2.2 

5.8 
4.8 

2.5 
0.7 



28 

23 

25 

23 
26 



30 

28 
21 

24 
26 

26 

27 
22 



28 

27 
27 
21 

26 

23 
21 

26 
27 

23 
29 
25 

28 

25 

23 

19 
20 

27 

24 
26 

25 

26 

27 

33 

27 
20 

24 
27 

25 

25 

23 
26 

21 
29 



I. 



983 



186 

338 



497 



775 



162 
315 



455 
245 



165 



550 



840 



590 
350 



410 



39« 



803 
042 

• • 

643 



2. 



091 



308 
418 



222 



590 



800 
128 
280 



740 



500 
252 



225 

215 
515 

470 

958 
648 



480 
404 



563 



472 



788 
083 

228 
650 

288 



785 



3. 



058 

399 
578 
421 
800 



320 



450 390 



5. 



.Ec 

o o 

u 



072 

239 
608 

322 
942 



553 235 



C o 

n 

2.1 
2.1 
2.0 
2.0 
2.0 

2.0 
2.0 



505 
705 
040 

285 
788 



190 

758 
680 



380 

215 
440 

165 

212 

195 

228 

108 
420 

420 
710 
822 



480 

• • 

010 
250 
950 



200 
610 

680 

000 
388 
262 
410 
040 

188 

215 

172 



365 
710 
812 



936 



244 



500 
520 
300 
872 
301 



622 

943 

300 
450 
130 
041 
621 



670 
350 
390 

• ■ 

260 



810 
472 
736 
954 

• • 

450 

• • 

770 



2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 



2.0 
2.6 
2.6 
2.6 

2.6 
2.6 
2.6 
2.6 
2.6 

2.6 
2.6 
2.6 
2.6 
2.6 

2.6 

30 
3.0 

30 

3.0 
3.0 
3.0 
3.0 
3.0 

3-0 
3.0 
3.0 

3.0 
3.0 

3.4 
3-4 
3.4 
3-4 
3.4 
3.4 



Apparent 
Zenith Dis- 
tance, South. 



// 



64 27 13-5 
69 10 6.7 

33 13 32.5 

33 58 6.7 
343 5 10.9 

34 45 6.4 
34 44 17.9 



19 50 51,8 
22 42 31.7 

22 41 46.7 

6 43 II. 8 

33 19 27.1 

10 33 3.9 
19 48 10.4 



24 28 4.4.9 
213 18 56.0 
192 36 52.2 

69 16 28.6 

59 57 190 
312 17 59.6 

5 40 32.1 
154 47 16.7 

58 3 1.4 

331 28 2.4 
143 58 32.8 

46 II 30.8 
151 24 48.6 

30 21 28.0 

32 47 59-7 
67 39 1.5 

65 2 45.4 

22 38 48.5 

22 39 33.4 

6 43 12. I 

33 19 28.3 
10 33 5.6 
20 8 56.8 

24 47 22.4 

25 19 5.0 

23 34 41.9 

359 51 37.7 
307 31 1.6 

46 11 32.3 

49 40 3.3 
32 48 1.4 

57 3 54.7 
57 30 28.0 

151 58 34.3 



I 

a 

o 

in . • 

6 



490 



494 
504 



510 



340 



393 
386 



382 

• « 

357 

• • 

323 
283 

• • 

291 
399 

• ■ 

403 

• • 

403 



Refraction. 



+ 






-I- 
■f 






4- 
4- 



+ 
-f- 
-h 
4- 



I 

2 



II 

59- 1 
29.4 

37.5 
38.6 

17.5 

39-9 
39.8 

20.4 
23.5 

23.5 
6.6 

36.8 

10.4 

20.1 



+ 25.3 

+ 36.9 

4- 12.6 

4- 2 27.5 



-I- I 



I 37.1 

I 1.9 

5.6 

26.7 
30.6 

30.8 
41.2 

59.1 
31.0 

33.3 



+ 36.7 

-f 2 15.2 

4- I 59-4 

+ 23.3 



23.3 
6.6 

36.7 
10.4 

20.4 

25.4 
26.1 

239 
0.1 

I II. 2 

58.4 
I 6.0 

36.1 
I 26.4 
I 27.9 

29.9 





10 • 




P c 




c 


Apparent N. 


•^ (J 


P. Distance. 






M ^ 




.- 






1 II 


"5 35 33.8 


- 4.0 


120 18 57.3 


4- 1.6 


84 20 31.2 


4- i.i 


85 5 6.5 


4- 1.0 


34 II 14.6 


+ 0.8 


85 52 7.5 


— 1.2 


85 51 18.9 


— 1.2 


70 57 33.4 




73 49 16.4 


- 8.6 



73 48 31.4 
57 50 39-6 
84 26 25.1 

61 39 35.5 
70 54 51.7 



75 35 31.4 
17 46 48.3 

38 29 16.4 

120 25 17.3 

III 5 17.3 
3 23 18. 9 

56 46 58.9 

77 19 31.2 
109 10 53.2 

23 33 52.8 
87 8 29.6 
97 18 51. I 
79 42 3-6 
81 28 22.5 

83 54 57.6 
"8 37 37.9 
116 II 6.0 

73 45 33.0 

73 46 17.9 

57 49 39-9 

84 26 26.2 

61 39 37.2 
71 15 38.4 

75 54 9.« 

76 25 52.3 

74 41 27.0 
50 57 58.8 

358 36 II. 6 

97 18 51.9 
100 47 30.5 

83 54 58.7 
108 II 42.3 

108 38 17. I 

79 8 16.8 



8.6 
0.1 
1.0 
0.9 
2.5 



- 3.6 

- 1.7 

- 0.8 
+ 1.0 



0.0 
0.9 
0.6 
0.1 
1.3 



4- 



0.0 

4- 0.9 

0.0 

- 0.4 
0.0 

+ 0.3 

- 1.2 

- 0.3 

- 6.8 

- 6.8 
4- .0.1 
4- 0.1 
-h 0.8 

- 2.5 

- 3.6 

- 3.7 
4- 2.6 
4- 0.9 
-I- 0.9 

-I- 0.9 

- 2.6 

-H 1.5 

- 3.6 
4- 1.9 

- 1.8 



No. Barom. 



External 
Therm. 



in. 



Attached 
Therm. 



For summary of the elements of reduction see page 3. 



No. 



MOON'S— 



Parallax. 



Semi-diam. 



20 4.0 



// 



+ 16 17.8 



;$ 



OB8BRVATIOM8 WITH THE TRANSIT CIRCLE. 









1 


• 




SECONDS OF TRANSITS OVER WIRES. 


( ORRECTIONS. 




V. . 

2 " 


DATr 


u 

^ 




OBJ Err, 


t 




1 


■ Appar 


cnt R. J: 5 


3 




» . I 


II. 


1 
III. IV.! V. VI. VII. VIII IX. ] 


Mean wire. In si. 


(lock Clock 

• . 1 • • 


1 w ,^^ 

, Ascension. r t 


_^^ 


Z 




_ 







■ 1 1 


appar ni.|adoptccl. 


1 
1 




i5e>. 








1 1 

1 






1 ' 

1 1 ' 1 


m. s. 


s. 


1 

2>. 1 !l« 


h. m. 


1 
s. ' S. 1 


AiMf 17 


I 




Sun I. N. . . . 


F. . '40.1 


42.644.350.753.055.0 I.I 2.7' 5.1, 


47 52.73 + 0.14" . . -1-10.27 


9 48 


3.M . 




2 




Sun II, S. . . . 


F. . I51.0 


53.255.1 1-4 3.4 5-511.5 13.1 15.7 


50 3.32+ 0.14 . . 


+ 10.27 


9 50 


13.73 . 




3 


51 


Ccphei. S. P. . . 


F. . '53.0 


33.5 


12.052.049.0 


37 20.38 + 3.60; . . ' + 10.44 


6 37 


34.42- o..*:, 




4 


c 


Aquilse .... 


F ! 


• • 


1 ' , p 


1 1 

• 1 • ■ , 


• • 


* * • . 




5 


} 


Aquilz .... 


F. 1 . ;38.4 

I 1 


40. 9'42. 5 18.750.852.859.2 0.7 3.4 

1 . 1 


39 50.82 -h o.i5-f-io.56 j-i-10.46 


19 40 

1 


1.43 — 0.<"i 




6 


.i 


Aquila;. 


1 ' 

F ' 

1" 1 * 


• • 


• • 


1 
• . ' 1 . . 17.1 


48 40.16-h 0.17,4-11.92 -1-10.46 


19 48 


50.80- 1.4; 




7 


a^ 


Capricomi . 


F. . 23.2 


25.827.433.635.738.044.145.748.2 


10 35.74 + 025 +10.40 4-10.47 


20 10 


46.46 ■+- o.u; 




3 


T 


C apricorni . 


F. . 25.0 


27. 5 29. 2,35. 6 37. « 39. 9 46. 3 48. 2 50. 7 


19 37.80 -h 0.27'-}- 10.47 -H10.48 


; 20 19 


48.55 -r o."I 




9 


f 


Dclphini 


F- . 33.9 


36.638.1 44.246 348.4 54.^>5^>. 2 58.8 


26 46.34'-!- o.i5|-hio.5o 'fio.4S 


20 26 


56.97 — o.-.i 




10 


A* 


Aquarti 


F. 


» • 


• • 


.... . . 5>.752.8 53.955.c> 


45 23.S9-I- 0.23+10.49 -+-10.48 


20 45 

1 


34.60 -r o.f.i 




II 


61 


»Cvf?ni .... 


F. . . i . . 


• • 


..!..'.. 26.727.729.330.6 


51.65 -h 0.03 . . 


+ 10.49 


21 I 


2. 17 -^ n.4.1 




12 


I 


Draconis, S. P. 


F. ; . 18.8 


12.3 


4.857-4 ' . . . . i 


17 41.95 ^ 1.32 . . +10.50 


9 17 


53.77- O.N, 




13 


s 


Aquarii 


F. ' . 23.0 


25.4:26.933.335.437.543.745.047.8 


3" 35.33 + 0.28 +10.43 i-hio.50 


21 30 


46.11 — 0.U5 




M 




Venus I. S. C. 


E 


. ■46.6,49.2150.857.159.2, 1.3 7.8,9.412.11 


15 59.28+ 0.15I . . 


+ 10.88 


7 16 


10.31 - 1. 41 




15 




Venus, N. C. . . 




• 


• • 


• • 


....... ..!..!.. 

1 





• • 


• • 


• • 


• • • • 




16 


a* 


Geminonim 


E. 


• 


• • 


• > 


.... I29.032.4 33.7 34.936. 1 


1 
25 59.99+ 0.07 -1-10.65 


+ 10. 88 


7 26 


10.94 -i- 0.4; 




17 


a 


Canis Minoris 


E. 


• 


0.4 


3.0 


4.6 8.710.712.814.716.9 . . ; 


32 12.76 + 0.211 + 10.84 ! + lo.8S 


7 32 


23. 85 -t- 0.u2 




18 


..? 


Geminorum 


E. i . 


• • 


« 


59.0 1.2 3.4 5.8 8.1 .... 


37 3.50+ o.o<; 4- 10. 84 +10. 88 


7 37 


14.47+ 0.04 


18 


19 




Sun I, N. . 


E. . 


22.8 


- 1 1 

25. 727. 133. 535. 537. ^> 44.0 


,45.648.1 


51 55.54 + 0.17 . . 


+ 10.94 


9 51 


46.6:; . . 




20 




Sun II, S. . . . 


E. ; . i33.i 


35. 8,37. 1 43.^^45. 7 47. 854.1,55. 7 58. 3 


53 45.^>9 -H 0.17 . . +10.94 


9 53 


56. So . . 




21 


,< 


Leonis .... 


E. 1 . 


56.1 


58.5 


4.5,6.2 8.5 10.9 13.0 18. 921. 5| 


42 8.68 + 0.16 +10.81 +10.98 


II 42 


19.82 + O-I-^ 




22 


a 


Canum Vcnat. 


E. 

1 


24.3 


27.4 


29.4137.339.942.5 50. 4'52.^ 55.7 


49 39.92I+ 0.02' + 10. 83 


+ 11. 01 


12 49 


50.95 + O.I') 




23 




Polaris, S. P. . 


E. . 


• • 


• ■ 


0.536.514.048.027.5 

1 


• • ■ • 1 

\ 


II 12.98 + 8.78 


. ' + 11.01 

1 


I II 


32.77 - 3.14 




24 


a 


Vir^inis 


E. 


51.6 


1 ' 
54.255.7,2.1 4.1 6.1 12. 1 13. 916. 5 


■ 

18 4.03+ 0.28 +11. 02 +11.02 


13 18 


1 

15.33 -*- 0.<">1 




25 


> 


Draconis . 


E. ' . 


3.5 


7.6,10.0 19.9,23.1 26.5 36.5 38.742.8 


53 23.18— o.oS . . 1 + 11.12 


17 53 


34.22 — O.I^ 




26 


/* 


Sa^ittarii ... 


E. t . 


29. 9 32. 6,34. 3 40. 7 43 045 -2 51. 7 53. 3 56. 1 


5 42.98 f 0.32 +11.32 +11.12 


18 5 


54.42 — r).2: 




27 


r) 


V.\sx. Minoris 


E. 


• • 


• • 


42.5 16.5 50.5 25.5 O.Oi . . . . 


14 51.12- 3.37 . . +11.13 


18 14 


58. 8>- i.>7 




28 

1 


I 


Aquilac 


E. ; . 


39-9 


42. «; 44. 1 50.1 52.254.1 0.5 2.1 4.7 

1 1 . < 


27 52.24 + 0.27 +11.25 ^-11. 13 

1 ' 


18 28 


3.6.4 — O.IO 




29 


a 


1 

Lvrx . . . . 1 


E. 


3.5 


1 1 
6.7 8.7 16.5 19. 021. 629. 5131. 534. 8 


1 

32 19. oc; + 0.03 +11. 16 1 + 11.13 


18 32 


30.25 — o.o; 




y> 


51 


rrephci, S. P. . . 


E. 


• • 


. . J46.O1 4.521.539.^5^.5, . • . • 


37 21.34+ 4.53 . . +11. 14 


6 37 


37.01 -i- 2.ir. 




31 


^ 


Lyra? .... 


E. . 48.8 


51.850.6 0.9 3.4 5.5 13. 015. 018. i' 


45 3.34-1- o.iy)+il.2l I + 11.14 


18 45 


14.54 - 0.05 




32 


ft 


Sa^ittarii 


F ' 


• • 


. . 1 . . 23.126.427.728.830.0 


46 55.72 + o.38, + ii.37 +11. 14 


18 47 


7.54 -r- 0'^t 




33 


m 
H 


Aquil?r, (R.) . 


E. . .58.7 


1.4 3.0 9.4 II. 413. 5 19. 621. 424. 1, 


59 11.39 + 0.26' • . +11.14 


18 59 


22.79— <^ '-'* 




34 


^ 


Sa/i^ittarii . 


F 


• • 


..:..-.. .. 54.2 55.858.5 

! : 1 . 


9 45.55 -+- 0.33, . . , +-11.14 

1 . 1 


19 9 


57.02 — 0.2) 


'9 


3« 


ft 


f^inum V'fnat. 


T. 


• ■ 


1 1 1 
27.028.836.8 39. 542. 050. 051. 9 . . , 


1 ' ' 
49 39.42 f- O.OI +11.33 I + if-33 


12 49 


1 

50.76 + O.OI 




V' 




Polaris, S. P. . 


T. I . 


• fl 




1.038.0 . . J9.o25.0| . . 51.01 


II 12.88+14.38 . . +11.34 


I II 


38.60+ 2.11 




37 




Ilcspcria 


T. , 3 


32.635.1 


37.043.045. 1 47.2 53.4 55. 1 57. f> 


41 45.12 + 0.40 . . , + 11.50 


19 41 


57.02 




3** 


i 


Aquil»; .... 


T. 


28.o3o.7i32.3'38.5i4o.5 42.5 4«.7.50.3 52.8; 


48 40.48+ 0.28+11.48 +11.50 ; 


19 48 


52.26 f 0.0: 




v; 


/ 


V x^'je. Minoris . 


T. ! . 


• • 


• • 


. . 120.011.058.046.0 


• • • • 1 

1 


57 10.20 — 1 7. 87 

1 


. . + 1 1 . 50 

1 


19 57 


3.S3 + 2."" 
1 




v» 


M 


fvph#i.m.) . . 


T. . 3 


15.9 


• 1 I I 

28. 1,35.1 49-7 56.5 7.8 


1 1 
13 12.17 — o.<)0, . . +11.51 


20 13 


22. 78 J- o.i: 




4f 


/ 


Ilf'Ipliini 


T. ' . 132. 7;35.33<>«'^!43. 145-247. 353. 5, 551 57.7, 


26 45.19 + 0.2.4+11.56 


+ 11. 51 


20 26 


56.94— 0.04 




42 


t 


i VKni , . . . 


T. . . 


50-5 54"5f>« 3-9 «-7 9-4 17.4 19-422.6 


52 6.67 — O.OI 


• • 1 


+ 11.52 


20 52 


iS. iS — o.(V.^ 




43 


r.i 


I ' t*,'A'. Maj.. S, I*. . 1 


T. 1 . 


2. 455. 851-7.35. 8,29. 924. 8 8.7 4.457.9' 


58 30. \ii^-\ I. II 


. . i + ii.52 


8 58 


42.79+ 0.t>j 




M 


ft 


i rphH. (k.) . . 1 


I'. 


52.457.81 


0.8 14. 018. 322. 635. 7I3S. 944. 5! 


14 IS. 33 - 0.17 


. . , + 11.53 


21 14 


2i).tK) — 0.03 




V. 


i 


AqiJ'irii . . . ; 


T 


15. 1 


17.5 


19. 2 25. 327. 3 29. 3 35. 5 37. 2 39. 6 

1 


24 27.33 4- 0.37+11.50 


-+-»!. 54 1 


21 24 


39.24 + 0.«'4 


lUf 


\f' 


/ 


\'j%'A- MinorJ«» 


F. 


• • 


• • 


. . 1 . . ' 4.053.036.5 


1 

• • • ■ 


57 3-'/>— 1505 . . U 12.12 


19 57 


0.97 f 0.5'» 




M 


//' 


i A\tu*fnW\ . 


F. . |2i. 224. 1 25.631.8 33. 836. 042. 343. S46. 2 


JO 33.87 + 0.36+12.15 


-I-12.13 


20 10 


46.36 — O.t 2 




y 


r 


i A\>x\* orni , 


F. . 23.225.927.231.734.0 . . 1 . . 1 


• ■ • • 


19 3^»o3 + 0.40' M2.IO 

1 


+ 12.13 


20 19 


48. 56 + 0.03 




Vf 


ft 


i svu\ . 


F. . . : . . 


9 • 


. . .. 1 ..'.... 1 


• • 1 • ■ 




• « 


• ■ 


• • 


• • • * 




'/' 


/' 


\*\\%A%\\ 


F. 1 

1 

1 


» 


• • 


■ • 


1 


. . 24.326.330.5 

1 1 


32.034.6 

\ 1 


45 22.2I> 

1 

1 


-1- 0.33 


+ 12.03 


+ 12.14 ' 

1 


20 45 


34,68 -t- 0.01 

.1 



6. R. A. over wire VII ; bisections at set E. 
10. II . 16.32. R. A. over set E. 
12. R. A. over set A. 
iH. Seems one rev. wronj[j. 
37. Wire A used. 
40,43. Hiscctions at sets B and D 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



79 



u 



Circle 



c i Division. 



/ 



MICROSCOPE MICROMS. 



4 



9 

10 

11 

12 

'3 
'4 
15 



is 
i<> 

20 
21 
22 
23 

24 
2; 
26 

27 



' 29 
3'> 
31 
32 
33 

. 34 



40 

41 
42 
43 
-M 

45 

4^' 
47 
4" 

V 

id 



No. 



25 24 

25 56 

306 6 

46 8 

28 32 



32 
51 

57 
27 
43 



44 
46 

26 

58 
18 



o 44 

300 46 

47 16 

22 28 

22 28 



6 40 
33 16 

I 10 30 

25 42 

26 14 

23 30 

359 48 
' 307 23 

49 iS 
347 20 

59 54 
312 14 

47 10 

o 10 
306 6 

5 36 
65 16 

154 44 

58 o 



35 


359 48 


30 


307 28 


37 


49 50 


3^ 


32 44 


3') 


3<y) 56 



218 22 

27 58 



358 



10 



2S6 34 

203 6 
44 SS 

309 56 
51 46 

57 26 

354 2 

48 18 



I. 


II. 


III. 


r. " 


»» 


n 


8.8 


9.2 


2.5 


10.5 


7.8 


1.5 


7.6 


6.1 


1.4 


7.6 


6.1 


28.9 


8.7 


5.3 


29.4 


9 23.1 


20.1 


16.4 


3.2 


1.6 


25.5 


8.1 


6.1 


29.6 


5.4 


1.4 


26,0 


10 8.0 


6.4 


29.9 


10 4.5 


1.8 


27.0 


10 1.9 


29.0 


24.0 


II. 


8.0 


1.5 


1.9 


0.0 


23.4 


1.9 


0.0 


23.4 


II. 7 


10.7 


5.5 


8.0 


8.5 


2.0 


g.o 


7.2 


2.0 


10.4 


7.7 


0.8 


15.0 


12.5 


4.8 


12.7 


9.6 


2.5 


15.7 


13.4 


7.1 


12.6 


II. 5 


5.5 


20.0 


20.1 


12.2 


6.6 


7.0 


0.0 


12.4 


13.8 


7.2 


12.5 


II. 7 


6.5 


10.5 


10.8 


2.8 


13.8 


12.5 


6.5 


4.5 


5.0 


29.5 


14.0 


13.2 


7.2 


7.2 


7.8 


29.6 


14.8 


15.0 


8.0 


8.5 


9.0 


0.5 


14.8 


13.3 


6.1 


9.9 


9.6 


2.5 


9.4 


9.3 


2.5 


8.0 


8.0 


0.0 


II. 


10.7 


5.0 


8.0 


9.2 


3.0 


16,7 


15.6 


8.6 


10.5 


9.5 


3.3 


12.4 


12. 1 


6.4 


10.3 


12.4 


6.3 


II. 3 


II. 3 


4.0 


6.5 


4.6 


0.0 


2.7 


3.4 


26.5 


9.2 


8.1 


1.6 


8.1 


6.1 


29.3 


2.3 


3.8 


25.5 



IV. 



TELESCOPE MICROMETER. 



// 



3.0 
0.8 

1.7 
29.1 

1.3 

14.8 

25.1 
0.4 

26.4 

0.8 

26.8 
25.8 
3.8 
23.4 
23.4 

2.7 
i.o 

2.0 

1.2 
7.0 
1.9 
6.4 

5.8 

10.3 
0.0 

5.5 
6.4 

3.3 

6.3 
29.1 

6.3 
1.0 

5.0 
0.8 

7.8 
4.4 
5.5 
4-3 
7.7 

3.4 
II. 6 

2.7 

7.3 
3.7 
4.5 

0.0 

25.9 
1.8 

29.4 
23.0 



Barom. 



External 
Therm. 



in. 



Attached 
Therm. 



Rev 



32 
26 

25 

26 

24 
26 
21 

25 

27 

26 
18 
27 
27 
30 

26 

25 
25 

27 

27 
20 

24 
26 

27 
27 

25 
23 
29 

24 

27 
21 

27 
25 
27 

24 
27 
25 
23 
24 

28 

25 
24 

28 

31 
25 

24 
26 

21 

28 
28 



I. 



572 

• • 

776 



726 
492 
958 



28S 
270 



502 



320 



655 
600 
960 



810 
170 



452 



070 



131 
670 



339 
930 



553 
140 

312 



2. 



389 



601 
418 
500 

381 
492 



<)05 



361 
253 



505 



310 



592 
530 
985 

041 
020 
700 
220 

435 

835 
480 

040 



054 
590 



506 

336 

093 
318 
910 
430 



488 
482 
030 



3. 



692 



400 



905 



230 



460 



560 



470 
826 



4. 



968 
760 
290 
612 

389 
601 



752 



140 
695 



470 
955 



940 
532 
442 
985 

885 
870 
600 
220 

335 

850 
470 
000 
600 
640 
130 

372 
100 

544 
354 
594 

374 
990 

158 
850 

336 
410 

802 
221 

378 
966 

053 



825 
833 

• • 

592 

500 

535 
618 

746 

873 

775 
098 

• • 

350 

190 
400 

945 



888 
560 
380 
898 



600 
225 



470 

• • 

445 

582 



356 
196 

484 
318 



342 



786 

• • 

325 

832 
272 
278 
852 
004 



O O 
CU'S 

C o 



tt 

3.0 
3.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 

2.2 
2.2 
2.2 
2.2 

2.2 
2.2 
2.2 
2.2 
2.2 
2.2 

1.8 
1.8 
1.8 
1.8 
1.8 

1.8 
1.8 
1.8 
1.8 
1.8 
1.8 

2.6 
2.6 
2.6 
2.6 
2.6 



Apparent 
Zenith Dis- 
tance, South. 



25 25 28.3 

25 57 33.9 

306 8 58.2 

46 II 31.9 
28 35 12.0 

32*47 59-8 
51 49 17.0 

57 30 29.1 
28 I 27.8 

48 20 51.2 

o 47 12.5 
300 49 19.8 

47 19 0.7 
22 31 I.I 

22 30 20.2 

6 43 13.7 
33 19 28.3 
10 33 19.8 

25 45 1.4 

26 16 44.5 

23 34 41.2 
359 51 37.9 

307 31 1.5 

49 20 54.6 

347 23 7.6 

59 57 20.2 

312 17 58.6 

47 12 26.5 

o 13 33.4 

306 9 0.7 

5 40 31.3 
65 18 56.7 

154 47 19.3 

58 3 3.4 

359 51 38.9 

307 31 I.I 

49 55 58.7 

32 47 59-4 

309 59 38.4 

218 24 42.7 
28 2 26.4 

358 13 45.5 
286 36 31.2 

203 7 53.4 
45 I 25.6 

309 59 41.0 
51 49 20.0 
57 30 31.8 

354 4 51.7 

48 20 50.6 



I 

a 

o 
S 

C/3 



320 

385 
389 



397 



398 



407 



316 



360 



273 
334 

• • 

334 



340 

• • 

343 
340 

• ■ 

343 



Refraction. 



Apparent N. 
P. Distance. 





; 


// 


+ 




26.2 


H- 




26.8 


— 


I 


16.4 


-H 




58.3 


-1- 




30.5 


4- 




36.1 


-+- 


I 


II. 2 


-+- 


I 


27.8 


+ 




29.8 


-^ 


I 


2.9 


-h 




0.9 


— 


I 


33.7 


-h 


I 


0.7 


4- 




23.0 


-H 




22.9 


4- 




6.5 


+ 




36.3 


4- 




10.3 


-+- 




26.6 


H- 




27.2 


4- 




23.9 


— 




0.1 


• — 


I 


:i.2 


4- 


I 


3.7 


— 




12.4 


4- 


I 


35.8 


— 


I 


1.0 


4- 


I 


o.i 


4- 




0.2 


— 


I 


16. 1 


4- 




5.6 


4- 


2 


0.5 


— 




26.2 


4- 


I 


29.1 


-^ 




0.1 


— 


I 


10.9 


4- 


I 


5.6 


4- 




35.6 


^— 


I 


5.8 


4- 




43.8 


4- 




29.5 


— 




1.7 


— 


3 


3.0 


4- 




23.6 


4 




55.4 


— 


I 


5.9 


4- 


I 


10.3 


4- 


I 


26.7 


— 




5.7 


4- 


I 


2.2 



76 32 15.7 

77 4 21.9 

357 14 3.0 

97 18 51-4 
7942 3.7 

83 54 57.1 
102 56 49.4 

108 38 18. I 
79 8 18.8 
99 28 15.3 

51 53 34.6 

351 54 7.3 

98 26 22.6 

73 37 45.3 

73 37 4.3 

57 49 41.4 

84 26 25.8 

61 39 51.3 

76 51 49.2 

77 23 32.9 

74 41 26.3 

50 57 59-0 

358 36 II. 5 

100 28 19.5 

38 29 41.2 

106 5 17.2 

3 23 18.8 

98 ig 47.8 

51 19 54.8 
357.14 5.8 

56 46 58.1 

116 27 18.4 

79 21 28.1 

109 10 53.7 

50 5« 0.0 
358 36 II. 4 
loi 3 25.5 

83 54 56.2 
I 4 53.8 

12 40 54.7 

79 9 17. I 
49 20 5.0 

337 39 49.4 
27 57 4.2 
96 8 42.2 

I 4 56.3 
102 56 51.5 
108 38 19.7 

45 II 7.2 

99 28 14.0 



3S 
c o 

.— o 



// 



- 3.7 

- 3.8 

- 4.5 
4- 0.5 
4 O.I 

4- 0.1 

- 0.3 

4- 2.8 

4- 0.7 

" 2.9 

4- I.I 

- 1.5 
0.0 

- 8.0 

- 8.0 

4- 1.4 

- 0.1 

4-14.7 

- 3.7 

- 3.8 
4- 1.8 
4- 0.7 

0.0 



4- 0.2 

— 2.2 

— 0.2 

— 0.4 

— 1.5 



4- 



2.7 
1.5 
0.7 
0.8 

2.4 
0.9 

1.6 

0.3 
2.6 

0.6 
1.6 



- 1-5 

- 0.8 

4- 1.4 

4- 0.9 

- 3.3 

- 0.5 

4- 1.2 

4- 1.8 

4- 4.4 

4- 3.3 

- 4.1 



/>>r sumtnaty of the ehmcnts of reduction see page 3. 



No. 



MOON'S— 



Parallax. 



/ // 



Semi-diam. 



/ n 



80 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1368. 
Aug. 20 



21 



22 



24 
25 

26 



I 



E 



OBJECT. 



1 ; Cygni . . 

2 a Cephei. (R.) 

3 ' Thalia . . 

4 « Piscium 

5 a Andromedae 

6 a Cassiopeae . 
. 7 Jupiter I, N. 

. 8 Jupiter II, S. 

9 6 Geminorum 

10 . Venus II, S. 

I II , a Canis Minoris 

12 ,i Geminorum 



13 rf 

14 '• S 

15 ■ > 

,6 I 

17 ' 



Draconis . 
Aquilae . 
Ursae Minoris 
Neptune 
Polaris . 



18 ' Piscium 

I 

19 ! Polaris, S. P. 

, 20 , y Aquilae, (R.) 

I 21 I fi Aquilse . 
I I 

I 22 ' Polaris, S. P. 

' 23 ' a Virginis 

24 



25 
26 

27 

28 

29 
30 

31 

32 

33 

34 

35 
36 

37 
38 

39 
40 

I 42 
I 43 
I 44 
I 45 

i 4^ 
I 47 



27 , 48 
49 



/? Librae . 

a Serpentis . 

e Serpentis . 

Moon I, N. 

K Aquilse . 

y Aquilae. 

fi Aquilx, (R.) 

r Aquilse. 



IT 

a 
24 



Cephei . 
Capricorn i . 
Cephei, (R.) 
Ursae Majoris, 
Thalia . 



I a Aquarii 
I Ceres . 
] Anonymous 
' / Aquarii 
Doris 

Jupiter I, S. 
Jupiter II, N. 
' i" Piscium 
Neptune . 
Polaris . 
e^ Ceti . . 

Sun II . 
Polaris, S. P. 



t 

• 




u 




Observe 


• 

JS 





S.P 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



2i« 



F. 
F. 
F. 
F. 
F. 

F, 
F. 
F. 

T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 
T. 

F. 

E. 
E. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 
T. 

F. 
F. 



I 



3. 




VI. ivii.yiii 



I 



26.i35.o'38.3 



' ' Clock 

IX. Mean wire. Inst. ' ^,^^,.„. *^a^^»^a 

appar nt. jadoptea 



c z 

_ Apparent R. ~r 
Clock , Ascension. t i 



<• w 



10.7 



31.5 



35.9 



22.1 
22. 324. 8 



39.0 
23.1 25.727.0 

34.436.3;38.4 



m. s. s. I s. , s. ' h. m. s. s. 

. . !l8.9;2I.o|23.8 7 9.69 + O.O9-H12.18 ;-HI2.I5 , 21 7 21.93— O.04 

53.6 15 17.58 — 0.12 . . -I-I2.I5 21 15 29.61— o.ii' 

• • ••• •• »• •• •••» •■ 

. . 52 22.08 -h 0. 24, -f- 12.28 f 12.22 23 52 34.54— O.OS 

38.6 I 24.69 + O.IO.-I-I2.22 -HI2.22 O I 37. OI 0.00 



24.1 



'34.035.5 



48.55i.4'53.5 
8.911.613.1 19.5 



7.2|I0.2 

43.945.2 
40.5I42.4! . . 



3 
3 
3 
3 
3 



58.5 
47.7 



27.3 



i.Oj 2.6 
50.5 52. 459. 2I 1.6 



59.5 1.7 4.ijio. 

2i.7|23.9'30. 

8.7I10.8 12.918. 

3.9I10. 



14.7 32 53.08 — 0.19; 

47.6 51 35.42 -I- 0.25: 

. . 51 38.40 + 0.25 



-I-I2.23 033 5.12— O.N^^J 

-♦-12.24 ' o 51 47.91 . . 
. :-|-I2.24 o 51 5O.S9 . . 



6 12.3 15.0 
231.834.6 



29. 



54.956. 

• • I ■ ■ 

1.8! 4. 



io.9]i6.42i. 

931.537.5b9- 

. . i53. 



34.0 



36.8 



58.6 

• • 

6.0 
5.0 
38.3 



4.8 6. 
. . 57. 



12.4 



14. 



26.732. 

41.7147. 
0:46.0131 . 

9I 8.915. 
o|23.o!i3. 
5 16.622. 



9'2o.5 

812.6 

I 

3 . . 

949-4 
o . . 

016.0 



23.1 
15.6 



52.0 



19.31 



12 i.8j I 
23 21.70 I 



-♦- 

32 10.78 -h 
37 1.59 ' + 



44.446.5 
25. 227. 7129. 235. 537. 4 



43.0, 



9.8 

• • 

48.1 

21.5 
22.4 

33.9 
24.8 

16.5 

12.5 
20.5 
48.6 



55.0 



015.059.0 
824.526.9 



590 



10. 
50. 



II. o 



11.7 



47.021. 

58. l| o. 

12. 9115. 
28.1130.2,32. 

7 52.3 58. 4I o. 



48.6155.056.6 

39-445. 547.3:49. 7 



12 21.58 — 
18 39.64 '-h 
56 56.07 I- 
5 6.86 -H 
II 36.66 '— 
24 14.41 -h 

II 18.37 

39 46.58 
48 37.43 ' 



0.07+12.89 

o.io| 

o. 14! -H 12.97 

o. 041 -»" 12.89 

0.33' . • 

o.i6-hi3.i4 

9.88 

0.15 

7.66 . . 

0.10-1-13.27 



+ 12.89 


7 12 14. So— 0.03 


+ 12.90 


7 23 34.70- 1. 31 


+ 12.90 


7 32 23.82— o.u, 


+ 12.90 


7 37 14.53+ o'^i 


+13.15 


19 12 34-40;-^ 0.42 


+ 13.15 


19 18 52.95 + O.C>2 


+13.17 


19 56 59-3^>+ '0 


+ 13.29 


I 5 20.301 


+ 13.29 


I II 42.29+ 3 51 


+ 13.30 


1 24 27.S4 + O.II 



2.3 8.3' 9.9 



24.3 
25.0 

36.7 
27.4 

19. 1 



24 
23 

54 



.4 
.2 

.0 



5.628 

35.538 
27 . 6 30 
57.6 o 
18.821 

31.934 



25.9,32.5 
26.6 



38.2 
28.8 
20.7 



44.4 



o 

2 

9 

3I34.3 
5 2.5 8. 



36. 



12.7 



4' • • • • I 
610.2 12.7 



II 23.00 
18 0.16 
9 40.72 
37 32.26 
44 0.45 



34.836.9,43.745.748.0, 46 34.81 

. . I . . . . I . . . . ' 29 34.76 
46.5,48.5 54.656.3 59-0' 39 46.46 



1 + 
1 + 

■ + 

' + 
1 + 

;+ 



35.o|37.i'39-2l45. 146.849.31 48 3706 + 



26.9I29.0 



31.258.2 3. 
24.831.333. 



57.4110.5 
34.2 



30.4 



.2 

.5 
.1 



37.3 



39-8'45.8 



31.037.138.6I41.41 57 28.92 + 



717.646.1I52.5 3.5; 
4 35. 5142. 0:43.646.21 
I I9.2|32.5'35.2|4i.i 
21.9,16. i' 



15. 
28. 
39.641.7I48.7 50.5 53.7; 



52.5 

• • 

9.3 
37.5 

• • 

0.3 



32.3 
1.7 
.523.0 

.4 



39.2 

8.0 

29.1 



47. 
41. 

9. 
31. 



55.2 



II 
40 



.8 



36.242.044. 
56.7 



4.0 



49.956.157 
43.7'50.5,52 



5.9 



i3.3|i9-6 



2.8 



.51 O.Ij 

.3i55.i 
ii.9,i8.4'i9.9|22.o! 

.1,43.61 
.9I56.61 



33.3|39-6i4i 
46.5,52.1153 



7- 
21 



10. o 

6123.7 

.041.4147.449.751-6 

0I57.5 
714.7 



47.01 9.5 
4.310.5 



35.' 
12. 



50.3 
43.0 



52.354.4 
20.0I56.0 



13 8.30 

19 3340 
15 14.84 
22 28.12 
33 39-54 

58 47.86 
12 41.40 
36 10.00 
45 31.24 
55 44.21 



5-54 • . 
0.14 +14.94 
0.14 +14.78 
0.09 +14.88 
0.09 +14.98 

0.18 . . 
0.13 +14.92 
o.oS +14.92 
0.21 
0.09+14.95 



13.0,14.7:17.1 
II. 9 
29.8I31 

57.759 
20.0 . 

21.0.22 



.4 

5 



58.5 
32.0 



.5 



0.2 



33.9 
2.0I 

I 



25.1; 



51 

51 
I 

4 
II 

17 



4.87 

7.94 
21.60 

49 64 
34.12 
12.66 



— 0.53 . . 

+ 0.17 +14.93 
1+ 0.09 
+ 0.41, 
1+ 0.22 

+ O.II +14.93 

1+ 0.21 

,+ 0.08, 

+ 0.14 +14.90 

1+ O.II 

'+ 0.09 
1+ 0.09 
1+ 0.09 
j+ 0.09I 

- 5-43 
+ 0.14 +14.97 



2.6| 26 50.26 ;+ 0.13! 
. . I II 19.25 + 6.83' 



+ 
+ 
+ 
+ 
+ 

+ 
+ 
+ 
+ 
+ 

+ 
+ 
+ 
+ 

+ 

+ 
+ 
+ 
+ 
+ 

+ 
+ 



+ 
1 + 

+ 
+ 



81 

82 

85 
86 

86 

90 
93 
93 
93 
94 

94 
94 
96 
96 
96 

97 

97 
98 

98 

99 

02 
02 

03 
03 
03 
03 

21 
26 



i 



I II 43.35 ^ 2.02 

13 18 15.12 — O.II 

15 9 55-71 + f>-^^' 
15 37 47.211— 0.02 
15 44 15.40— 0.13 

17 46 49.89+65.80 
19 29 49. 82 t- o.oi 
19 40 1.47 -f o.ix: 
19 48 52.20+ 0.01 

19 57 43.95- o.io 

I 

20 13 22.71 + 0.45 

20 19 48.51 + O.Ol 

21 15 29. 89 + 0.24 

9 22 43.49 + ^'^^ 
21 33 54-72 • . 

21 59 2.94 + 0.03 

22 12 56. 5S . . 
22 36 25.0^/ . . 
22 45 46.36, ^- 0.14 
22 55 59-31, 

o 51 19. 9S, . . 

51 23.05' . . 

1 I 36.72 -r 3.7: 
I 5 4.76, 

I II 43.72 + 2.04 

I 17 27.83+ O.iT^ 

I 
10 27 5.60—64.63 

I II 41.34'— o.u- 



2.47. Wire B used. 
3.36.39.41. Wire A used. 

24. R. A. over set A. 
32.35. Bisections at sets B and D, 
39. Obsen'ed for Sappho. 



OBSBBVATIOKS WITH THE TRANSIT CIRCLE. 



81 



Circle 
g Division. 

a 



4 

5 



I 

a 

10 

II 

■ 12 

I 

' 13 

M 

15 
,16 

. 17 

15 



20 

21 ! 

I ' 

22 I 

23 I 

24' 

2^ 

. 26 ' 

27 ' 

2S 

29 

;o 

I 3^ 

32 , 
I 33 
34 

Vj 

37' 
3^ 

39 
40 

41 

42 

43 
I 44 

45 
'46 

'47 



V ' 



9 8 

203 6 

67 50 

32 42 



343 2 
34 50 

34 50 

16 36 

22 18 

33 16 
10 30 

331 24 

35 58 

33 40 
310 16 



MICROSCOPE MICROMS. 



I. 



r. 



// 



19 307 28 



151 22 
32 44 



10 
10 



TI.2 
10. o 
10. o 

14.6 

12.2 

15.6 

9-5 

10.8 
15.0 

10.5 
5.6 



6.9 

4.0 

7.5 



33 56 I 

58 14 
46 8 

28 32 

147 10 

31 54 



6.6 

9-7 
II. 3 

8.5 
3.1 
7.8 



321 32 


8.5 


57 26 


7.5 


203 6 


3.0 


2S9 16 


9.9 


68 10 


9.6 



39 46 
65 36 
30 10 
47 6 
41 20 

35 2 
35 2 
33 52 
33 42 
310 16 

47 44 



4'> ' 307 28 



10.3 
12.0 

"5 
II. 6 

10.5 

9.0 
9.0 

8.6 

8.9 

9.6 

II. 8 



II. 



// 



10.7 


9.6 


8.3 


9.0 


5.5 


5.0 


13.2 


II. 6 



10. o 

9.1 
9.1 

12.9 

9.8 

13.8 

8.2 

8.0 

12.5 

8.3 

4.3 



6.9 

3.0 

6.8 



10.9 



5.2 

9.3 
10.6 

7.3 
3.6 
6.8 

7.0 

6.5 

4.5 
9.0 

9.9 

9.1 
II. 9 
10.2 

"•3 
9.5 

7.7 

7.7 
7.5 
8.5 
8.5 
II. 5 



III. 



// 



9.6 



3.5 
2.6 

26.3 
2.9 



2.1 
0.1 

O.I 

6.9 

3.0 

• 7.0 

2.6 

3.0 
5.0 

1.5 
29- 5 



1.6 

26.8 
0.8 



27.6 

1.3 
2.9 

0.2 

26.5 
28.8 

1.5 
28.6 
28.5 

3.3 
1-4 

i.o 
3.8 
2.0 
3.2 
1.6 

0.5 
0.5 
29.8 
0.2 
3.2 
3.4 



3.3 



IV. 



// 



3.6 

1.2 

27,0 

5.0 



2.4 
1.9 

1-9 

7.3 

3.7 
6.6 

2.0 

2.4 

5.3 

2.3 
293 



1.6 

26.9 
0.3 



0.3 

2.8 

3.5 

0.5 

24.7 
29.7 

2.3 
0.6 

26.6 

4.3 

2.8 

3.2 

5.6 

3.6 

3.7 
2.7 

1.4 

T-4 
0.6 

1.7 
4.6 

4.4 



TELESCOPE MICROMETER. 



Rev. 



23 

21 

28 
27 



26 

24 
21 

22 

25 
25 
27 

23 
25 

36 

29 
26 

27 

28 
23 



22 

30 

25 
26 

31 
22 

26 
21 

31 
21 

25 

22 
20 

30 
26 
22 

26 

29 

24 
27 

29 
27 



4.3 



26 



I. 



872 



555 
500 



310 



346 



202 

• « 

576 
380 



262 



2. 



338 



738 



440 
645 



514 
266 

222 

048 



333 
402 



242 125 



453 ' 610 



489 

872 
116 
680 
405 
450 

372 



816 
023 

285 



159 
808 

414 
380 

330 



388 
266 
027 



913 



3. 



959 



321 



140 



632 



710 



055 



808 



4. 



592 



693 



972 

412 
166 
090 
914 

290 
250 

280 
232 



176 

060 
520 



510 



938 
520 
400 
338 

266 
580 

736 
022 
200 

679 
050 

743 
350 
342 



240 
286 
098 
066 

924 



783 



152 
770 

• • 

028 



780 



392 

• • 

096 

• •• 

• ■ 

386 

• • 

200 



098 
510 



349 



120 

710 
980 
623 

• • 

434 



236 
336 



022 



2 c 

ft, •* 

•— u 

C O 



// 



2.6 
2.6 
2.6 
2.6 



2.6 
2.6 
2.6 

2.3 

2.3 
2.3 

2.3 

3.0 
3.0 

3.0 
3.0 



2.0 

2.0 
2.0 



840 



II. 4 

II. 4 
II. 4 

II. 3 
II. 3 

II. 3 

"3 

II. 3 

11.3 
II. 3 

II-3 

11.3 
11.3 
II-3 
II. 3 
11.3 

II. 3 
II. 3 
11.3 
11.3 
II. 3 
II. 3 



Apparent 
Zenith Dis- 
tance, South. 



// 



II. 6 



9 12 1.0 

203 7 52.3 

67 55 13.9 
J2 44 49.8 



343 5 10.5 
34 53 43.2 
34 54 25.3 

16 40 9.1 
22 21 30.4 

33 19 27.5 
10 33 4.9 

331 28 0.9 
36 I 27.4 

33 43 15.5 
310 18 35.1 



307 31 2.6 

151 24 51.9 
32 47 59.1 



34 o 15.5 

58 16 6.3 

46 II 32.2 
28 35 II. I 

147 12 1.9 
31 58 16.2 

321 35 14.9 
57 30 27.6 

203 7 54.9 

29g 20 33.6 

68 16 3.9 

39 50 7.9 
65 40 45.9 

30 14 39.0 

47 9 II. o 
41 26 46.8 

35 5 15.3 
35 4 29.1 
33 55 46.0 

33 45 1.4 
310 18 31.2 

47 44 15.3 



307 31 4.7 



No. 



Barom. 



m. 



External 
Therm. 



Attached 
Therm. 



For summary of the elements of reduction see page 3. 



6 
o 

.2 « 
B 

CO 



Refraction. 



// 



352 

■ • 

360 
372 

368 ; 



-<- 9.0 

+ 23.7 

+ 2 15.9 

+ 35.8 



+ 



390 H- 

+ 



383 



410 — 



443 



16.9 

38.9 
38.9 

16.7 
23.0 

36.7 
10.4 

30.6 
40.9 

37.8 
I 6.7 



294 — I 1 1. 2 

- 30.7 
. . -h 36.2 



334 

373 

390 
388 



+ 37.3 






393 ,+ I 



403 
405 

• • 

410 

413 
414 
414 

422 



433 

324 
286 



— 2 

4- 2 

-h 
-+- 2 

-h 
+ I 

+ 



29.9 

58.3 
30.4 
36.0 

34-9 

44.4 
27.7 
24.0 

38.4 
19.7 

46.8 

3-7 
32.8 

0.6 
49-7 

39.6 
39-6 

37.9 

37.7 

6.4 



— I 

-h I 2.1 



— I II. I 



Apparent N. 
P. Distance. 



// 



60 18 31.2 

27 57 5.2 

119 3 51.0 

83 51 46.8 



34 II 14.8 
86 o 43.3 

86 I 25.4 

67 46 47.0 
73 28 14.6 
84 26 25.4 
61 39 36.5 

22 33 51.5 

87 8 29.5 

84 50 14.5 
I 23 49.6 



358 36 12.6 

79 42 0.0 
83 55 56.5 



87 7 14.0 

109 23 57.4 
97 18 51.7 
7942 2.7 

83 54 55.3 
83 5 12.3 

12 40 51.7 
108 38 16.5 

27 58 2.3 
340 24 16.4 
119 24 44.8 



90 
116 

81 

98 

92 

86 
86 

85 

84 
I 

98 



57 

49 
21 

16 
33 

12 
II 

2 
52 
23 
51 



15.9 
10.8 

33.0 
32.8 

57.7 

16. 1 
29.9 

45.1 

0.3 

46.0 

38.6 



358 36 14.8 



ft ."• 

So 



// 



0.3 
1.3 

3.7 
1.2 



+ 3.1 

- 1.2 

- 1.2 

0.0 

- 7.4 

- 0.3 

- 0.3 

- 0.7 

-+- 1.5 

- 0.2 
+ 2.2 



- 0.4 

- 2.7 
-h 0.4 



+ I.I 



4- 1.0 

4- O.I 

— 0.8 

— 1.5 

— 2.3 
H- 1.0 

— 2.6 
+ 1.3 

— 3.7 

— 0.4 

— 4.1 

— 0.9 

— 2.7 

— 1.2 

— 1.2 
-25.3 

— 0.2 

— 0.2 

— 1.2 



+ 0.9 



No. 



MOON' 



Parallax. 



27 



ff 



- 46 37.6 



Semi-diam. 



r» 



4- 15 0.9 



11 



82 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
Aug. 27 



29 



31 



Sept. 4 



S 



I 
2 

3 
4 

5 

6 

7 
8 

9 
10 

n 

12 

13 

14 

15 
16 

17 

18 

19 
20 

21 

22 

23 
24 

25 

26 

27 

28 

29 
30 

31 

32 

33 

34 

35 
36 

37 
38 

39 
40 

41 

42 
43 
44 
45 
46 

47 

48 

49 
50 



OBJECT. 






0) 
(A 

o 



6 
a 

6 

K 

a 



Ursaj Minoris . 
Lyrac 

Moon, S.' . 
Draconis, (R.) 
Aquil2e 
Aquilae 



Sun, I . . . . 

Sun II, N. . 

Polaris, S. P. . 
a Virginis 
y Aquilie 

a Aquilse 
(3 Aquila; 
A Ursae Minoris . 
a^ Capricorni 
Moon I, S. . 

24 UrsaeMajoris, S. P. 
e Pegasi, ^R.) 
fi Capricorni 
a Aquarii, (R.) 
Ceres . 

Sappho 
A Aquarii 

Doris . 
fi Piscium 

Jupiter, I . 

Jupiter, II . 
e Piscium 
r Piscium 

Neptune . 

Polaris 

12 Canum Venat. 

Polaris, S. P. 
C Virginis 
6 Ursa; Minoris 
a Aquilae 

A Ursaj Minoris 

K Cephei . 

e Delphini . 

a Cygni . 

e Pegasi, (R.) 



Moon, I 
Sappho 
Jupiter I, N 
Jupiter, II 
e Piscium 

TT Aquarii 

rj Aquarii 

C Pegasi . 

I Cephei . 



F. 
F. 
F. 



F. 
F. 
F. 



T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 
F. 

H. 
H. 
H. 
H. 






3 
3 

3 

3 



SECONDS OF TRANSITS OVER WIRES. 



I. 



54.2 

• • 

46.3 
32.4 

54.1 
23.3 

• ■ 

17. 1 
37.1 



15-9 
39-2 

34.1 
52.1 

39-4 

17.3 

27.3 
50.2 



39.2 
8.0 

23.3 



46.0 



II. 



56.7 

48.8 
35.1 



III. 



IV. 



V. 



VI. VII. VIII 



7.5 
30,3 



58.4 

II. o 

50.4 
36.6 



56.758.2 

27.5 



25.9 

• • 

19.9 
39641. 3 



21.4 



18.5 
41.9 

36.5 

54.8 

42.1 
19.9 
30.0 

52.7 



41.7 
10.4 

25.7 



48.5 



43.9 
41.0 

32.0 

55.2 
30.0 

36.5 
23.8 

20.4 
22.7 
41.3 
33.1 



46. 

44. 
34. 

58. 

■ < 

39. 

• « 

26. 



23.0 

25.3 
43.3 
39-2 



39-2 
20.1 

43-5 
38.1 

56.7 

43.9 
21.3 

31.7 
54.3 



9.9 
43-2 
12.0 
27.4 



21.0 
54.0 



48.2 
46.9 
36.1 

59-5 

• • 

40.6 

47.8 
32.0 

24.6 
26.8 

45.3 
43-0 



12.9 
32.2 



4.5 
47.0 

56.5 



18.2 
34.2 



57.8 

6.8 

23.0 

58.6 



42.844.8 



4.5 
33.5 
54.0 
27.6 

47.9 

33.0 
26.2 
49.8 
44.2 

3-4 

50.0 
27.6 

37.5 
0.4 



II. 9 

49.4 
18. 1 

33.6 
II. o 



59-5 
56.0 

22.2 



54.3 

55.9 
42.2 

6.0 

38.3 

• • 

49.8 
33.9 

30.7 
33.0 

51.4 

57.8 



6.5 
35.6 
46.0 
29.8 
50.2 

26.6 
28.4 

51^9 

46.3 

5.7 

52.1 

29.8 

39-2 

2.6 



14.0 
51.6 
20.2 

35.5 
37.0 



32.5 
58.0 

58.2 



0.0 

14.5 
56.3 
58.5 
44.3 



23.6 
36.2 



0.0 
8.8 

56.0 
0.7 

46.9 

8.6 

37.7 
33.0 
31.9 
52.3 

20.7 

30.4 

54.1 

48.3 
8.1 

54- 1 

31.8 

41.6 

4.6 



16.0 
53.6 
22.2 

37.5 
58.0 



10. o 

0.2 

33.0 



47.0 
27.9 

58.4 
1.2 

46.3 



7.8 10.3 
. . 46 . 6 

• • • • 

51.954.0 
36.1 38.4 



32.9 
35.0 



34.8 
37.2 



53.455.5 
2.7 7.9 



29. on. 537. 5 



IX. 'Mean wire. 



29.0 
38.3 



6.0 
15. 1 

■ • 

7.1 
53.1 

14.7 

43.9 
23.0 

38.1 

58.9 

14.7 

36.4 

0.3 

54.3 
14.9 

0.2 
38.0 
47.6 
10.6 
19. 1 

18. 1 

59.7 
28.4 

43-6 
20.0 



45.0 
2.3 

8.5 



34.0 

330 

5.0 

9.9 

52.2 

16.6 

■ • 

57.1 
56.0 

40.2 

41.0 

43.3 
1.8 

22.5 



7.7 
16.6 

49.0 

8.5 
54.7 

16.3 
45.4 

• • 

39-7 
0.5 



38.1 

1.8 

55.8 

16.6 

2.1 

39-6 

49.4 
12.2 

20.5 



1.3 

29.9 
45.2 



7.9 



37.3 

6.3 

12.0 

54.1 

18.3 
52,0 

58.5 

45 .8 

42.5 
44.8 

3.5 
26.2 



m. s. 
14 44.20 



12 18.24 
29 34.24 



10.2 

19. 1 
42.0 

11. 2 

57.3 

18.8 
48.1 

• • 

42.4 
3.2 



40.7 
4.6 

58.5 
19.6 

4.8 
42.1 

52.1 

14.7 
23.1 



3.8 
32.5 
47-9 



10.3 



42.0 

8.7 
15.6 

56.4 

21.0 

54.7 
0.9 

• • 

48.3 

44.9 

47.4 
6.0 

32.5 



31 
34 
II 

17 
39 



57.84 



CORRECTIONS. 



Inst. 



1 Clock 
jappar'nt 



s. 
2.66 



s. 



— o.oi 

+ 0.19+15.37 



6.69 
22.13 

58.681-h 
44.80 



4- 






0.13 
0.13' 
6.83 
0.21 



+ 16.32 



44 6,49 
48 35.67 

36 45.38 
10 29.77 

21 50.11 

22 26.84 

37 28.30 

45 51.90 
58 46.23 

10 5.77 



-h 0.12 -f-16.45 



4- 0.13 

+ 0.14 

- 8.54 

4- 0.22 

+ 0.24 



+ 16.36 
+ 16.35 



+ 16.35 



+- 0.56, 

+- 0.23I 

•h 0.22 -+- 

+- 0.26 

-f 0.28 



33 52.08 -f 0.13 
45 29.71 -+ 0.20 
53 39.60+- 0.17 
21 2.48 + 0.14 



50 10.83 

50 13.98 

55 51.49 
I 20.19 

4 35.49 
II 34.98 



16.45 



-I-16 
+ 16 



+ 0.15 



+ 0.15 

H- 0.144- 

4- 0.14! 

+ 0.14; 

- 6.63I 



16.58 



II 33.26I+ 9.iO| 
27 58.13 4- 0.21 + 
14 58.30- 3.53. 



56 59.63-11.36 
13 22.98 — 0.82 
26 56.39+ 0.15 



36 58.40 

37 44.21 



— 0.05 
+ 0.27, 



39 
.50 



0.36 



4- 0.38 



I 8.08 + 0.27 

32 42.384- 0.17 

49 48.7S + 0.19 

49 51.90+ 0.19 

I 36.11 + 0.19 



18 32.76 + 0.26 + 1.84 

28 35.06'+ 0.27 + 1.79 

34 53.5614- 0.21I+ 1.79 

45 2.77— 0.50 . . 



Clock 
adopted. 



Apparent R. 
Ascension. 



s. 

+ 15.35 



+ 



+ 
+ 
+ 
+ 



+ 

+ 
+ 
+ 
4- 

+ 

+ 

+ 
+ 
+ 



+ 
+ 
+ 

+ 
+ 



5.36 
5.37 



6 
6 



22 
22 
27 

.27 
.40 



6.40 
6.40 
6.40 
6.41 
6.41 

6.43 

6.44 
6.44 

6.44 
6.45 



+ 16.45 
+ 16.46 

+ 16.47 

+ 16.47 

+ 16.50 



6.50 
6.50 
6.51 
6.51 
6.51 



h. m. s. 
18 14- 56.89 



11 



s. 

0.75 



19 12 33.59J 
19 29 49.801 



- o.i: 
0.00 



+ 0.32 
+ 0.32 
+ 0.39 



+ 
+ 
+ 



+ 



0.41 
0.41 
0.42 
0.42 

0.43 



0.44 
+ 0.45 
+ 0.48 
+ 0.48 
+ 0.48 

+ 1.80 
+ 1.80 
+ 1.80 

+ i.8i 



I 

10 32 14.19I 

10 34 23.04 

I II 45.23 

13 18 is.i^V 
19 40 1.3s 



2.0C) 
0.04 
0.06 



19 44 23.02 + 0.05 

19 48 52.21I+ 0.05 

19 56 53.24.+ 0.43 

20 lo 46.40+ o.ot. 

20 22 6.761+64.02 
9 22 43.831+ 0.42 

21 37 44.97 + 0.05 

21 46 8.56 — o.o<:. 

21 59 2.93j+ O.OI 

22 10 22.501 



O. I 



22 34 8.6f>l 

22 45 46.37,4- 

22 53 56.24' . . 

23 21 19.0*9+ 0.02 

o 50 27. 48- 



o 50 30.63 
o 56 8.13: — 

I I 36.84,+ 
I 4 52.141 
I II 44.86 + 



o. 

3 



13 
70 



1.47 



I II 42.68(— 1. 41 

13 27 58.66,— 0.04 

55.16— o 



JZ 



19 56 48. 68— 2.16 

20 13 22.57 + o.6<j 
20 26 56.96J4 0.05 

20 36 58.77!- 0.02 

21 37 44.91 - 0.01 



22 I 8.79+62.45 
22 32 43.00] . ' 

o 49 49.45' - • 

49 52.57 . . 

1 I 36.78:+ 3.70 



22 18 34.82— 0.05 
22 28 37.13+ O.OI 

22 34 55.57+ 0.05 
22 45 4.08;— 0,15, 



I. Observed over wires Dt, D3, and VII. 
3. N. P. D. doubtful ; probably wire A used. 
16. Bisections over sets B and D. 
22.24.43. Wire A used. 

38. R. A. over set E. 



OBSEBYATIONS WITH THE TBAK8IT CISCIiE. 



88 



u 
'J 



MICROSCOPE MICROMS. 



Circle 



g Division. 

3 , 
Z 



I. 



I 
2 

3 I 

4 

5 
6 

. I 
/ 

S 
9' 

10 I 

II 

12 

13 

U 

15 ' 
i6 

17 
iS 

19 

20 
21 

22 
23 

24 

2; 

26 



28 ' 

29 ■ 

30 

31 

I 
32 

33 , 

34' 

35 

36 

37 i 
3S 

39 

40 I 

41 

1 
42 

43 I 

45 . 
46 

47 
4S 

49 

50 I 



r. 



// 



312 14 

O lO 

59 2 

2o8 30 

46 8 

30 18 



29 28 I 
307 28 ' 

49 18 I 
28 32 ' 

30 18 I 

32 44 
309 56 

51 46 
57 8 

2S9 16 
150 20 

52 58 
140 8 

65 50 

30 32 

47 6 

41 38 

33 10 



10 10.2 

13. 1 
9 7.2 

3.1 
10.6 

10.6 



8.2 
4.2 

9.3 
8.6 

12.3 
10.2 
13.6 

13. 1 
6.9 

7.3 
5.8 

13.3 
8.3 
4.6 



9.3 

"5 

13.4 
11.6 



31 38 

33 52 

33 42 

310 16 

359 48 
307 28 

38 44 
312 14 1 

30 i8 I 

309 56 

321 32 

27 58 

354 2 
150 20 



30 46 
35 12 

33 52 

38 6 

39 36 
28 42 I 

333 20 ' 



10 



9.5 

9.1 
7.8 
8.6 

10.5 
5.2 

8.3 
14. 1 

14.0 

4.4 
10.4 

9.4 

"3 
10.2 



8.5 
II. 7 

7.5 

5.2 
5.2 
4.2 
1.9 



II. 



8.8 

12.4 

5.6 

4.5 
10.9 

10.8 



7.0 

4.3 
8.5 
7.0 

10.6 

8.7 
II. 2 

11. 5 
5.7 

6.2 

4.5 

11. 6 

8.2 
4.3 

7.8 
10.3 
II. 4 

9.5 



8.4 

7-4 
8.6 

6.6 

10.9 

4.9 

6.9 

12.4 

12.4 

2.1 

8.2 
6.6 

8.4 
8.6 



7.0 
9.0 

5.7 

2.3 
2.8 

I.I 

28.7 



III. 



3.0 

6.0 

29.0 

28.4 

4.1 
1.9 



29-3 

27.5 

0.5 
29.2 

3.0 
0.2 

6.3 

4.5 

27.5 

0.3 
27.2 

3.8 

0.1 

26.0 

0.0 

2.7 
3.8 

1.5 



IV. 



n 



0.3 
29.5 

28.5 
0.5 

4.3 
28.0 

1.4 

12.6 

4.8 

27.2 
2.7 
0.0 

3.1 
1.3 



29.1 
1.4 



3.5 

6.3 

28.2 

25.2 

3.7 

3-7 



0.8 
0.1 
1.2 
0.2 

4.0 

1.5 
6.6 

4.7 
28.6 

0.8 

27.3 

4.5 
29.6 

28.7 

0.5 

3.6 

5.7 
2.6 



TELESCOPE MICROMETER. 



Rev. 



I. 



23 

24 
17 
31 
24 
25 



26 

27 
27 

26 

25 

23 

24 

25 
20 

21 

25 
21 

31 
23 

32 
26 

24 

25 



888 



993 
400 



288 
788 



1.6 

0.4 

29.7 

1.7 

4.2 
0.3 
0.8 

12.5 
6.2 

28.4 

3.5 

1.4 

3.3 
2.6 



0.9 
2.7 



27.8 


26.3 


25.5 

26.0 


25.3 

26.5 


23.4 

23.8 


24.9 
23.3 



22 

24 
21 

29 

24 

27 
22 

23 
25 

25 
26 

25 
27 
25 



22 
26 

24 

23 
22 

30 
26 



680 



250 



818 



2. . 



850 



248 

035 
365 



228 



968 
210 
890 

307 



715 

• • 

332 
662 



670 

• • 

028 
175 



420 

374 
604 

910 
463 

542 
670 

596 

• • 

250 

753 
410 

840 

458 



398 
316 

732 
200 
912 
311 



750 
958 
352 



593 



3. 



408 



2CX) 



730 



558 



700 



854 



281 

212 

• • 

390 



4. 



478 

944 



108 
890 

335 



922 



303 

339 

588 

880 
738 

386 

• « 

514 
801 

160 

488 
272 
380 
289 



168 



467 

440 
259 



160 



996 

314 
480 

286 

670 
127 
914 
400 



245 

467 

502 

344 
466 



431 
602 

447 

358 
020 
818 
020 



595 
205 

592 

« • 

840 
320 



808 



o o 

N3^ 



Apparent 
Zenith Dis- 
tance, South. 



n 



772 
103 



530 



864 



574 



782 
087 
900 

447 
160 

203 
592 

515 

• 
272 



428 



350 



122 

839 
012 



II. 6 
II. 6 
II. 6 
II. 6 
11.6 
II. 6 



11.3 
II. 3 
II. 3 
II. 3 

II. 3 

II. 3 
11.3 
II. 3 
11.3 

II. 3 
11.3 
11.3 
11.3 
11.3 

11.3 
11.3 
II. 3 
11.3 



11.3 
II. 3 
II. 3 
11.3 

12.6 
12.6 
12.6 
12.6 
12.6 

12.6 
12.6 
12.6 
12.6 
12.6 



12.6 
12.6 

12.6 

II. 7 
II. 7 

II. 7 
II. 7 



// 



No. Barom. 



External 
Therm. 



48 



in. 
30.026 



e 

68.8 



Attached 
Therm. 



73.0 



312 17 58.7 
o 13 31.2 

59 7 58.9 
208 22 4.3 

46 II 33-5 
30 21 27.8 



I 

g 

•1.2 

g 



29 31 5.9 
307 31 3.7 

49 20 52.1 
28 35 9.4 

30 21 26.6 

32 47 59-6 
309 59 36.3 

51 49 17.4 
57 12 44.1 

289 20 29.0 
150 21 29.0 

53 2 23.9 
140 9 50.6 

65 54 6.1 

30 36 12.7 
47 9 12.0 
41 44 10.6 

33 13 27.6 



31 41 5-3 

33 55 45.4 

33 46 28.5 

310 18 29.6 

359 51 37.1 

307 31 5.5 
38 48 8.6 

312 17 53.0 

30 21 28.0 

309 59 37.4 
321 35 12.7 

28 I 27.2 

354 4 46.7 
150 23 29.7 



30 52 49.0 
35 15 9.4 

35 55 47.0 

38 10 4.9 

39 40 24.1 
28 44 I I. 4 

333 23 27.5 



370 



396 



310 

• • 

271 
348 



354 
354 

362 

• • 

360 
363 
363 

363 
363 

• 

362 
370 



373 



226 
292 
316 



320 



326 



402 
402 



Refraction. 



— I 

4- 
-h I 



+ 



4- 

+ 

4- 






+ 



+ 



+ 



II 

1.2 
0.2 

33.1 

304 

58.3 
32.8 



-h 31. I 

— I 10.8 

+ I 3.4 

-f 30.2 



32.5 

35.7 
6.0 

10.5 
26.0 



2 36.8 
31.6 

1 13.7 
46.4 

2 3.6 

.32.9 
I 0.0 

49.6 
36.4 



+ 34.4 

+ 37.5 

+ 37.3 

— I 5-6 

— 0.1 

— I 10.2 

+ 43.3 

— I 0.1 

-f 32.2 



— I 



+ 



5.5 
43.7 
29-3 

5.6 

31.3 



33.1 
39-2 



+ 40. 2 



44.1 

46.5 
30.8 

28.1 



No. 



For summary of the elements of reduction see page 3. 



3 
16 



Apparent N. 
P. Distance. 



// 



3 23 18.7 
51 19 52.6 
no 15 53.2 
22 33 46.5 
97 18 53.0 
81 28 21.8 



80 37 58.2 
358 36 14. I 
100 28 16.7 

79 42 0.8 

81 28 20.3 

83 54 56.5 

I 4 51.5 
102 56 49.1 

108 20 31.3 

340 24 13.4 

80 45 23.8 
104 9 58.8 

90 57 17.0 
117 2 30.9 

81 43 6.8 
98 16 33.2 
92 51 21.4 

84 20 25.2 



82 48 0.9 

85 2 44.1 

84 53 27.0 

I 24 45.2 



(0 



to 



3 c! 

c o 

.2 o 

SO 



II 

+ I.I 
-4- 2.0 

- 3.1 
-h 2.4 
-h 0.7 



- 4.3 

- 0.5 

- 1.8 

- 1.5 

- 0.6 
-h 0.7 

- 0.9 

- 0.6 



- 0.7 

— 0.2 

— 0.8 
-h I.O 

— 4.0 

- 5.2 

— 0.4 

- 2.7 

- 2.7 



— 2.1 

-24.9 

— 0.2 

0.0 



50 57 58.2 — I.I 
358 36 16.5 -h 1.3 

89 55 13. 1 1+ 2.6 

3 23 14. I I- 3.1 

81 28 21.4 -h 0.1 



I 4 53-1 
12 40 50.2 

79 8 17.7 
45 II 2.3 

80 43 22.8 



81 59 43.3 

86 22 9.8 

87 2 48.4 

89 17 10.2 

90 47 31.8 

7q 51 3-4 
24 29 20.6 



-f I.I 

- 2.3 

-+- 1.3 

+ 1.3 

— 0.9 



- 5.2 

- 1.2 

-24.9 

0.0 
-h 2.2 

- 1.6 

- 1.3 



MOON'S— 



Parallax. 



Semi-diam. 



II 



- 46 15-3 

— 45 18.0 



II 



- 14 53.4 

- 14 45.6 



M 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



iS6S. 
Sept. 4 



I I 

ii 



OBJECT. 



1 a Pegasi . 

2 & Piscium 

3 >. Draconis, S. P 

4 I Piscium 

5 4i63Groombridge 



6 

7 
8 

9 
lo 

II 



12 

'3 

14 

15 
I6 

17 
i8 

'9 

20 
21 

22 
23 
24 

25 

26 

27 

26 

29 

30 
31 



« Piscium 
Jupiter I. S. 
Jupiter II, N. 
Moon II 
Polaris . 
Venus II, S. 

Sun I. S. . 
Sun II, N. . 
Mercury, (center) . 
12 Canum Venat. 
Polaris, S. P., 

o Virginis 

7 Bootis . . 

« Cephei . 

T Capricomi . 

e Delphini-.(R.) 



a Cygni, (R.) 
fi Aquarii 
a* Ursae Maj.. S, 
C Cygni . . 
Jupiter I, S. 

Jupiter II, N. 

e Piscium 
e Piscium 

Neptune 

Polaris . 



32 Moon II, N, 

33 ^ Ceti . . 



Jupiter I, N. 
Jupiter II, S. 
Piscium 
Piscium 
Polaris . 

Sun, S. . . 
Sun, N. 
Polaris, S. P. 
Bootis . 
Bootis . 



34 




35 




36 


e 


37 


e 


33 




39 




40 




i 41 




. 42 


a 


43 


e 



O 



I 



P. . 



! 44 ■ a Lyrae 

' 45 4/ Sagittarii . 

46 K Aquilae . 

I 47 y Aquil*. (R.) 

48 e ^ Draconis . 

49 j r ' Aquilx . 



H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 
H. 
T. 

T. 
T. 
T. 
T. 
T. 

T ' 

t!' 

T. 
T. 
T. 



T. 
T. 
T. 
T. 
T. 

T. 

T. 

T.- 

T. 

T. 

T. 
T. 

N. 
N. 

N. 
N. 
N. 



F. 
F. 
F. 
F. 
F. 



SECONDS OF TRANSITS OVER WIRES. 



be 
'5 



I 

2 

• 

2 
2 



I. 



II. ! III. IV. 



V. VI. VII. VHI IX. 



,59.3 2.1' 3.610.011.914.220.422.224.7 
4.7 7.4' 8. 915. 1 17. 1 19.025.326.929.4 

55.953.250.338.3 I . . j 

58.2 0.9 2.4 8.510.612.618.820.422.6' 

48.858.0.3.825.232.939.6 1.9 7.215.7 



,20.423.024.830.732.934.941.042.5.45.0. 

'12.2 14.7 16.3 ' . . I , . I . . I 

'..'.. . . ' . . .... 35-637.i;39-7 

,13.7 16.3 17.724.026.228.234.636.238.7 

^.« ..'..1..' ■•• 37'Oi8.o 

57.3 0.0 .*. ' 8. 010. 1 12.3 18.720.323.0 




21.424 
,29.832 
43.546 
133.036 



025.6 

433.8 

M7.6 

,438.2 

. 30.0 



31.733 
40.041 
55.758 
43.446 
5.043 



.535. 841. 943. 546. Oj 

.944 
.0 o 
. I 48. 
.020. 



050.351.954.5 

I 4.0 5.6, S.6 

751.554.0 
054.0 . . 



I 



I 



0.4 30 4.5 
9. 311. 913. 5 



33.436. 
43.344. 



037.5 
846.4 

I 



10.7 12 
20. 0*22 
11.320 
44.1,46 
52.754 



.914. 
.324. 

.5;29. 

.348. 
.856. 



921.022.725.2 

330.S32.435.2 
757.5 4.516.0 

4 54.956.5'59.i 
9 3.J' 4.6. 7.2 



.39.543. 
20.022. 



1,44.9 
624.0 

I13.7 6.6' 3.0' 

I 5.8 8.8 10.5 

'49.752.353.7 



53.556.559. 
30.2132.334. 

46.3I41.035. 

17.620.022. 



■54.0,56.5 



1.3 

57.9' 



3.4 
4.0 



22.625.026.532.7 
5.3 7.9 



5" 8.4 10.3 14. 0' 
540.642.244.8, 

7,19.715.4' 8.5 
329.130.934.0 

10. 611. 8 14.6 



5-5 7.5 9.6; . . 

6.2j 8.3 14.4 16. 018. 6 

34.6'36. 743.044. 5 47. li 
9.3x5.6:17.819.6,25.827.329.9; 
3. 029. ©'56. 014. 039.0 . . 



3 I 1.5 4.2, 5.8 12. 0.14. 1 16. 1 22.524.1 26.7 



48.350.952.5 



27.029. 5-31. 1 35.1 



53.356.057.61 3.8 
22.1 24.826.232.5 



F. 
F. 
F. 
F. 
F. 
F. 



27.0 



8.9 10.513.0 



37. 239.341. 4,43. 5 

.... |50. 752. 354-9 
5.8' 7.8 14.1:15.618.2 

34.536.542.644.146.8 

50.5: . . 38.0: . . • . . 



5.041.0 



31.8 34. 1 36.2 38. 5'40. 8145. 046. 4 49. 2 



CORRECTIONS. 



Clock I Clock 
appar'nt. adopted. 



I =2 



t « 



Apparent R. 
Ascension. 



80+ 0.231 
44-1- 0.25: 
42'-!- 0.25 
18 -+- 0.25 
50—11.35 
15 -+- 0.03 



52 32. 
48 24. 
48 27. 
13 26. 

" 57. 
I 10. 



57 33.71 + 0.06 

59 42.07 H- 0.06 

27 55.901-1- o.o6' 

49 48.76— 0.05 -f 



s. 

1.89 
1.84 

• • 

1. 71 



1.78 



s. 
4- X.81 
-I- 1. 81 
1. 81 
1.82 



4-1.82 



1.87 



II 42.06 



4- 5.23 

I 



18 12.81 + 0.12 4- 
48 22. 194- 0.02 -h 
13 20.43,— 0.55 

19 46.23 4- 0.15 + 



4-1.82 
4- 1.83 
+ 1.83 
+ 1.84 
-h 1.84 
4- 1.92 

-I- 1-95 

4- 1.95 

4- 1.97 

4- 1.97 

4- 1.98 



26 54.76 



-h 0.23 



2.22 4- 1.98 
2.08 4-1.99 
. . |-4- 2.06 
2.05 -I- 2.06 
-H 2.06 



36 56. 63' 4- 0.20 



45 32.36 
58 41.10 

7 19-89 
2. II 



48 

48 

56 
I 

4 



5.47 
6.21 

34.74 
17.61 



II 52.60 



2 
6 



14. II 
0.69 



4- o.li -I- 2.03 

4- 0.32' . . 

— 0.02 4- 2.01 
-4- 0.07 . . 

I 

4- 0.07 . . 

H- 0.064- 2.08 

+ 0.07 . . 

4- 0.07^ . . 

- 5.19 . . 

-I- o.o6- . . 

4- 0.05 4- 2.07 



47 39.28 

47 42.5^ 
56 5 . 80 

I 34.46 

II 51.05 — 5.19 



0.07! . . 

4- 0.0*71 . . 

4- 0.00 4- 2.49 

4- 0.074- 2.35 



-h 2.07 

;4- 2.07 

!-l- 2.07 
,4- 2.07 
2.12 

-h 2.12 

4- 2.12 

4- 2.12 

-h 2.12 

-h 2.12 

+ 2.13 
-H 2.13 I 

4- 2.42 
4- 2.42 
2.42 
2.42 
2.42 



4- 



4- 



II 41.13 -I- 5.56: 
9 36.26 4- 0.02 



32 
9 



2.50 



1 1. 8 15. 016. 7 24. 4 27. 2 29. 9 37. 7 39. 7 43.0 

41.343.945.552.4:54.256.4, 2.9 4.9 7.4 

34. 837. 438. 844. 947. 049. 055. 256. 659. 4 29 47.01 4- o. II 4- 2.55 



27.27 — 0.05 -f 2.64 
54.32 4- 0.16. 



46.2 



48.8 



37.0 



50.3 



39-3 



56.358.6 



41.243. 1 



0.5 



45.5 



7.4 8.5 II. I 
0.8! 5.012.9 

49.451.053.8 

I I 



39 58.64 4- 0.23, 
48 37.01 — 0.331 



58 41.26 



-I- 0.064- 2.51 






*■ ' I 



h. m. s. s. 

22 58 14.03— 0.07 

23 21 19.14 r 0.0: 
II 23 29.20^ 0.3: 
23 33 12.62 ^ o.<^^, 
23 48 33.63 — ox^ 

23 52 34.85 -I- o.c: 

o 48 26.52 . . 

48 29.50' . . 

1 13 28^27—62.3: 

1 II 47-99 ■+■ ' *'■ 

8 I 12.10— i.o- 



10 57 35.72 
10 59 44.oi» 
12 27 57.93 
12 49 50. 6S 
I II 47.27 



13 18 14.91 
13 48 24.20 
20 13 21.94 
20 19 48.44 
20 26 57.05 

I 
20 36 58.90 

20 45 34.54 
8 58 43.40 

21 7 21.94 
o 48 4.30 



O.II 

0.23 

0.T2 

o. *^ 

CM 
O.l'j 

O.IO 
. 02 
O.IO 



o 48 7.66 

o 56 8.30^-1- O.OI 

I 36.93 -^ 3-5: 

4 19.80 

II 49,53 - 2.6: 



I 
I 
I 

2 
2 



2 16.30 -^V 3: 
6 2.S7 -H 0.C1J 



o 47 41.77, 
o 47 45.07I 

56 8. 28 

1 I 36.95 
I II 4S.2S 



0.12 
3-5? 

O.Vi 



4- 2.52 
-I- 2.52 



I II 49.21 -h t.43 
14 9 38.80 -t- 0.03 



+ 2.55 
+ 2.55 
+ 2.55 
4- 2.56 
4-2.56 
-h 2.56 



18 32 29.77 — o.oi 

19 9 57.03 — O.or 

19 29 49 67 

19 40 1.43 -»- 
19 48 39. 24,-1- 

19 58 43. 88— 0.04 



O.O"' 

0.12 

0.0= 



3. R. A. observed over wires II and Aa. Ai. 

7. Micrometer revolutions doubtful. 
19. Bisections at sets B and D. 
41. Probably one revolution wrong in N. P. D. 



OBSERVATIONS WITH THE TBANSIT CIBCLE. 



85 



^ Circle 
g I Division. 



MICROSCOPE MICROMS. 



3 
4 
5 



8 
9 

10 

II 



12 

13 
M 

i6 



I 



/ I 



10 
20 
21 

22 

23 
24 



27 

2^ 

20 

30 
31 

^2 






34 
J? 
3^' 

37 
3? 

30 
4" 
41 
42 
43 

44 
45 
46 

47 

4'^ 



I. 



r. 



/r 



24 20 

33 10 

2S8 56 

33 54 I 
325 10 

32 42 ' 

35 22 , 
35 22 I 

310 14 
22 18 



32 32 
32 o 

34 o 

359 48 
307 28 

49 18 

19 46 ! 
321 32 

57 26 I 

151 56 i 

I 

185 52 

48 18 

2S6 34 I 

9 8 I 

35 24 



9 
9 



10 



35 24 
31 38 
33 52 
33 46 
310 16 

31 48 

30 36 

35 26 
35 26 

31 3» 
33 52 

310 14 

33 18 

32 46 



I 



9 

9 

9 

9 
10 



2.5 
0.0 

1.4 
1.0 

9.8 

15.4 
12.5 

7.9 
16.6 

II. 3 

9-1 

17.7 
10.3 

17.0 
7.3 

7.3 
II. 5 
12.5 
12.5 

8.4 

II. I 
8.3 

17.5 

17.5 
25.2 

29.8 
4.5 



9 27.0 
9 28.2 



307 28 t 10 0.1 



18 58 
II 12 

o 10 

sS o 

46 8 

151 22 

328 54 

31 54 



9 27.7 
1.6 



2.3 
3.6 
6.1 
29.0 
29.6 
0.1 



4.9 
2.6 

1.2 

3.8 
3.5 ' 

0.7 
29.5 

29.5 

27.0 
8.6 



9 
9 



7.4 

1-3 

28.8 

29- 3 

293 

9.5 

14.5 
10.3 

5.5 

14.3 

9-5 

8.2 

15.0 

9.0 

13.7 
4.3 

4.3 

9-3 

9.7 
10. o 

6.5 

9.1 
6.0 

14.8 
14.8 
23.1 
26.8 

2.4 

25.5 

27.5 

29.5 
26.1 

0.2 

29.8 
2.1 

4.9 

27.9 
27.1 

27.6 



0.6 

23.6 
21.3 
21.2 
24.1 
3.8 

7.6 

4.5 

0.5 
6.8 

3.0 

2.3 

7.8 

3.5 

8.4 

27.1 

27.1 
2.1 
2.6 
2.0 

I.O 

1.4 

29.1 

9.1 

9-1 
16.2 

20.2 

27.1 

19.5 
19.9 

23.9 
19.6 

23.8 

26.5 
26.3 
27.7 
22.5 

23.7 
21.6 



II. 


III. 


n 


n 


3.2 


25.3 


1.6 


24.0 


0.2 


25.5 


2.2 


24.5 


1.3 


26.0 


29.8 


22.6 


27.1 


19.5 


27.1 

2C..1 


19.5 
10. e 



IV. 



II 

25.7 
23.9 

26.2 
24.6 
26.2 

22.0 

19.9 
19.9 

19.3 

2.0 



24.7 

21.7 
22.4 

23.5 

6.0 

7.6 

4.0 

3.3 

10. 1 

5.1 

2.0 
10.6 

6.3 

9-5 
0.5 

0.5 
5.6 

5.5 
5.6 

4.5 

5.5 
2.3 

9-5 

9-5 
18. 1 

21.7 

0.0 

17.2 
18.4 
24.0 
20.4 
24.0 



• TELESCOPE MICROMETER. 



24 

27 

28. 

18. 
22. 
21. 



4 
6 * 

7 
9 
9 
7 



Rev. 



27 
26 

24 
23 
25 

28 

27? 

29 

22 
27 

22 

21 

23 

25 
26 

27 

24 
26 

21 

28 

26 
27 
29 
23 
23 

26 
22 

24 
22 

29 

28 
26 



22 

23 

25 
21 

27 
26 

26 

27 
26 

25 
27 

25 

28 

24 
22 



I. 



2. • 



no 
070 
572 

775 
575 



843 



549 



346 
720 



840 



131 

• ■ 

550 



388 

533 
218 



258 



073 



3" 



770 

515 



035 
982 
528 
700 
482 



3. 



828 



610 



368 
262 
790 



960 

558 

343 
836 



382 

955 
550 
440 



840 
410 
892 
368 



980 

178 



no 



316 



787 
401 

545 
704 



742 



258 



420 
383 



990 



350 



4. 



956 
910 



572 



612 
956 



512 
632 



792 
283 
148 
658 

668 
830 

561 
141 
680 

143 
283 

872 

330 



680 
890 
290 

398 



496 



910 
100 



883 
368 

889 

305 
552 
440 

363 
682 



932 

878 



455 



582 

• • 

958 

620 

618 



818 
294 
166 
708 

363 



680 
070 

■ • 

790 



620 



410 
103 



125 

• • 

045 



325 

116 

377 

075 
302 



480 
818 



o o 



«o 



N] 



1.7 
1.7 
1.7 
1.7 
1.7 

1.7 

1-7 
1-7 

1.7 
a. 9 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.5 
2.5 

2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 
2*5 



Apparent. 
Zenith Dis- 
t^ince, South. 



I 

6 






o / // 

24 23 9.6 

33 13 27.4 
288 59 45.8 

33 58 2.3 
325 13 35.6 

32 44 47.7 
35 25 0.0 
35 24 29.0 

310 18 27.0 
22 20 54.0 

32 36 20.9 

32 4 32.2 

34 3 59-6 
359 51 40.2 
307 31 6.5 

49 20 49.4 
19 49 34.2 

321 35 12.4 
57 30 25.6 

151 58 35.5 

185 55 16.2 

48 20 51.8 

286 36 31.5 

9 II 52.2 

35 28 2.1 

35 27 II. 7 
31 42 5.9 

33 55 42.7 
33 50 5.9 

310 18 28.1 

31 50 42.5 

30 39 19. I 

35 29 49.2 

35 30 40.3 

31 42 5.8 

33 55 43.5 
310 18 25.3 

33 21 18. I 

32 49 25. 3j 
307 31 23.4 



405 
402 



408 
410 



369 
352 

• • 

333 

333 
334 
438 
438 



443 
443 

• • 

459 



460 



463 



385 



342 



Refraction. 



// 



4- 25.5 
+ 36.7 
- 2.41.3 



-f 



4- 



37.8 
39.0 

36.1 

39-9 
39-9 



|— I 6.2 
46B -h 23.1 



-f 
4- 
+ 

— I 

H- I 

+ I 



19 I 0.6 


286 


II 15 21.7 


• • 


13 29.6 


387 


58 3 4.3 


401 


46 II 30.6 


• • 


151 24 51.5 


410 


328 57 54.2 


• • 


31 58 19.0 


415 



+ I 

- 3 



-f 
+ 

— 1 



— I 

— I 

+ 
-f 

H- 
4- I 

-h 



35.6 

34.9 

37.5 

O.I 

II. 9 

4.2 
19.9 

44.7 
28.6 

30.1 

5.8 

3-5 
7.6 

9.2 

40.5 

40.5 

35.1 
38.2 

38.1 
6.9 

35.3 
33.7 

39.8 
39-9 
34.5 
37.6 
5.8 

36.4 
35.7 
II. 2 
18.9 
10.9 

0.2 
29.7 

58.5 
30.6 

33.8 

35.1 



Apparent N. 
P. Distance. 



// 



75 29 56.3 

84 20 25.3 

340 3 25.7 

85 4 1.3 
16 19 17.8 

83 51 45.0 

86 32 I.I 
86 31 30.1 

I 23 42.0 
73 27 38.3 

83 43 17.7 

83 II 28.3 

85 10 58.3 
50 58 1.3 

358 36 15.8 

100 28 14.8 

70 50 15.3 

12 40 48.9 

108 38 15.4 

79 8 15.8 

45 10 59.2. 
99 28 16.6 

337 39 45.1 
60 18 22.6 

86 35 3.8 

86 34 13.4 
82 49 2.2 

85 2 42.1 

84 57 5-2 
I 23 42.4 

82 57 39.0 

81 46 14.0 

86 36 50.2 

86 37 41.4 

82 49 1.5 

85 2 42.3 
I 23 40.7 

84 28 15.7 

83 56 22.2 

358 36 33.4 
70 7 40.7 
62 21 53.8 



51 
109 

97 

79 
20 

83 



19 51-0 
10 55.2 
18 50.3 
42 0.3 
3 41.6 
5 15.3 



c o 
•53 ^ 
.2 o 



II 

+ 0.3 

- 1.9 

- 1.0 

- 1.5 

- 2.4 

- I.I 

- 1.2 

- 1.2 

- 1.4 

- 6.1 

- 4.7 

- 4.6 

- 3.6 
-h 0.2 

- 0.9 

- 3.4 

- 1.2 

- 2.4 

- 0.5 
0.0 

- 0.7 

- 1.3 
+ 1.4 

- 2.4 

- 1.2 

- 1.2 
0.0 

—24.1 

- 0.2 

- 0.7 



— 1.3 

— 1.2 

— 1.2 

— 0.6 
—24.1 

— 2.1 

— 4.8 

— 4.7 
-hi6.i 

-h 3.2 

+ 0.2 

+ 1.7 

-h O.I 

— O.I 

— 1.2 

-h I.I 

4- 2.5 



No. Barom. 



45 



m. 
30.038 



External 
Therm. 



79.0 



Attached 
Therm. 



72.0 



For summary of the elements of reduction see page 3. 



No. 



32 



MOON' 



Parallax. 



I n 



— 29 10.8 



Semi-diam. 



4- 15 II. 6 



86 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
Sept. 7 



8 



0) 

B 

o 



I 

2 
3 
4 
5 

6 

7 
8 

9 
10 



10 



36 

37 

38 

39 
40 



OBJECT. 



Aquarii. 

Ursae Maj., S. P 

Cygni . . 

a Cephei . 

/? Cephei, (R.) 



s 



II 


a 


12 




13 




14 


f 


15 




16 




17 




18 




19 




20 




21 


6 


22 


a 


23 


/" 


24 


V 


as 


6] 


26 


C 


27 


I 


28 


/■? 


29 


c 


30 




31 




32 


^ 


33 


1 


34 




35 


7 



TT Aquarii. 

Doris . 

/ Piscium 

I 4163 Groomb ridge 

u Piscium 

Andromedae 
Jupiter, S. . 
Jupiter, N. . 
Piscium 
Neptune 
Polaris . 

Sun I, S. 
Sun II, N. . 
Mercur)', (center) 
Polaris, S. P. 
Ursae Minoris 

Cygni . . 
Aquarii 
Cygni . . 
61' Cygni . 
Cygni . . 



Pegasi . 
Aquarii. 
Aquarii. 
Jupiter I, N. 
Jupiter II, S. 

Piscium 
Neptune , 
Polaris . 
Piscium 



Sun II . 

Polaris, S. P. 
6 Ursae Minoris 
I Aquilsc, (R.) 
/i Lyrae . 



41 50 Draconis 

42 C Aquilae . 

43 I 6 Draconis 

44 I T Draconis 

45 i a Aquilx . 



46 

47 
48 

49 
50 



/? Aquilae . 
T Aquilae . 
a Capricorni . 
li Aquarii 
61' Cygni . 



t 

O 



F. 
F. 
F. 
F. 
F. 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS, 






I 



I. II. III. IV. V. VI.'VII.VIII IX. Mean wire., Inst. 



Clock 



Clock 



appar'nt. adopted. 



F. 
F. 
F. 

F, 

F. 



I 



F. 
F. 
F. 
F. 

H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 

F. 
F. 
H. 
H. 



H. 

H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 
H. 



19.622. 
'12.8 5. 
I . . 14. 
! 0.8 6. 



023.727.9 

9 3346. 4 
7 17. 019. 4 

2 9.520.6 

46.252.4 



31.836.040.041 .944.1 
40.435.2 18.915.4 8.4 
21.5 24.1 28.730.5 33.5 
26. 8|3i. 344. 747. 853. 1 
58.9 4.9 10.8 . . ■ . . 



m. s. I s. ' s. 

45 31.89 + 0.12 -f 2.50 

58 40.75 -H 0.34 . . 

7 19-35 — 001 -^- 2.53 
15 26.76 — 0.21. 

26 58.67 +0.17 . . 



Apparent R. 
Ascension. 



s. 
2.56 
2.56 
4- 2.56 
-H 2.57 
+ 2.57 



4- 
4- 



h. m. 
20 45 



8 

21 
21 
21 



s. 

34.57 

58 43.65 

21,90 

29.12 

1. 41 



7 

15 
26 



c o ! 

cr ** 



S. 

4- 0.06 
-h 0.27 
-r 0.03 

— 0.52 

— O.K 



• • • ■ 



. . . . 16.924.031.339 
I . . 28.1 30.232.334.336 



• I • • • • 

.2'46.7 . . I . . 
.440.642.044.5 

I I 

20. 723. 625, 332. 234. 3"36. 843. 945. 748. 8 I 34.59— 0.034- 2.72 I4- 2.58 



48 31.65— 0-.20 . . |4- 2.58 
52 32.284- 0.014- 2.55 4- 2.58 



22.1 24.726.3 
55.057.659-3 



• • I • • 



I 9. 411. 813. 3 
17.6 19. 921. 6 

• • • • I • • 

. . . . 29.0 

I 

■ ■ • • • • 

I 

38.642.1 44.1 

19.5 22.1 23.6 

59.0 2.5! 4.6 

43.646.948.7 

, 4.9 8.1 9.5 



32.2,34.4'36, 
5.4 7.1 9 

\ I 

19.421.423 
27.729.9,31 

• • • • ■ 

2.040.0 . 
17.552.024 



442.7 
415.8 

531.0 

I 



53.056.058 
29.831.933 
12.6 15.4 18 

56.759.3 I 
16.9 19.1 21 



! 
.429.8 

.S38.O 

• \ 4.7 

• '53.0 
.0' 0.0 

I 

•7| 7.4 
.940.0 

. o 26 . o 

.7! 9-6 
.428.5 



44.446.8 
17.319.6, 
20.5 6.0 

31.334.0 

39.742.2 

6.1 8.8 

I 



I 34.434- 

4 7.39-1- 
II 45.22 — 



9.6,13.0 
41.644.0' 

28.231.3 

II. 5 14.8 
30.233.2 



8 21. 

10 29. 
46 56. 

11 40. 
14 51. 

36 55. 
45 31. 
51 15. 

o 59. 

7 19- 



534- 

46 -I- 

55,4- 
25- 

83I- 
82'+ 

2g- 
20- 
09 4- 



O.oi 

O.OI 

2.07 

I 

0.09 
o.o<p 

O.IO 

4.81 

1.90 



0.04 
0.144- 

0.02 
0.01 
0.02 4- 



4- 

;4- 



2.56 



2.74 



!-f 2 

4- 2 

4- 2 

4- 2 

'4- 2 

4- 2 

4- 2 

-h 2 

4- 2 

4- 2 



46.048.7 50.3 56.8 59. 0] I.O 7.5 9. 211. 81 
124.026.6,28.2 34.4 36.5 38.6144.746.048.7 

[31.033.635.241.243.245.351.553.0,55.5' 



,39.842.443.8 . . 



,51.153.1 55. 357. 2 



0.3 1.71 4.3 
59.3 . . 



! > I I i 

22.024.325.832.034.1 36.242.343.946.5 

. . I I .. 30.4 31.6 32.7 

I 24.552.013.038.0 . . ' . . 

12.5 15.317.023.125.327.3,33.735.1138.0 



15 58.92+ 0.0^) 4- 2.64 JH- 2 

24 36.41:-+- 0.13-h 2.65 4- 2 

30 43.28-1- O.I4-I-.2.64 |-1- 2 

.46 52. 05' 4- O.IO . . -I- 2 

46 55.21I4- O.IO . . '4- 2 



. . + 2 

. . 4- 2 

'4- 2 

2.81 4- 2 



29.231.432.939,041.243.349.350.953.2 

. . . . '41.015.549.524.0159.0' . . 



I 34.12 -h O.IO 

4 2.90-1- O.IO 

" 50.35— 4.70 

24 25. 2f) 4- 0.07 + 

17 41.16^ -h o. 16 

II 47.504- 4.31 

14 49.94 - 1.65 



I 



+ 3 
+ 3 



56.4 . . 6.2 8.4 II. 2 13.3 16.0 . . '25.6 45 11.02;-!- 0.064- 3.10 



■47 
1 6 

157 

21 

I » 



136. 

'28. 

\^' 

118, 

43 



057.6 3.627.435.843.7 7.313.2 
8 9.5111.017.3 19.2 21.4 27.8 29.4 
7 4.7 8.524.830.035.451.355.2 
930.335056.5 3.710.932.337.4 
3 9.7 II. 217. 5 19. 521. 727. 729. 4 



23.8 
31.8 



539.240.4 .... 

J * * ** ** *■ 

5 9.010.5J14.7 16.9 
8^21.522. 929. 331. 333 



57.058.6 
48.8 50.2 
21. ol . . 
39.6,41.0 
146.448.456.458.9 1.3 9. on. 2 



I 

45 
31 



9 

9 

8 



50 

59 
12 

18 
44 



35 
19 
29 
3 
19 



1.2 

52.8 

. . I 

43.7 

14.4 



48 48 

57 40 
10 18 

45 31 
o 58 



.49 — 0.30 

,36-1- 0.12 4- 

94;4- 0.37 

77;- 0.25 

.53 -I- 0.14 4- 

0.15 4- 
0.15 4- 
0.2I' 

0.204- 
0.04 



4- 3 



,8214- 
.504- 
9'> 4- 
.28 4- 
■79i4- 



3.08 



3.16 

3.05 
3.14 

• • 

303 



4- 
4- 



4- 
4- 
4- 

4- 



59 
59 
59 

60 
60 
60 
61 

65 

66 
66 
66 
66 
66 

66 

67 
67 
69 
69 

69 

69 

69 
70 

02 



23 48 3403 4- 0.2(. 
23 52 34.87+ O.OI I 

o I 37.14 - o U 



I I 37.03 

I 4 9-99, 
I II 45.74 



3.50 

• > 

2.55 



II 
II 
II 
I 
18 



8 24.22^ 
10 32.51 
59-16, 

47.97 
52.00 



46 
II 

14 



20 36 58.45 
20 45 34.62 

20 52 17.93 

21 I 1.85 
21 7 21.77 



0.41 
0.S4 

0.2T 
0.12 
O.Oi) 
0.22 



21 16 1.64,— o.(y> 
21 24 39.21 + 0.02 

21 30 46.09 + O.OI 

o 46 54.84' . . 
o 46 58.00! . . 



I I 36.91 

I 4 5.691 

I II 48 . 34 

I 24 28.03 



3-4'i 
0.3: 

0.«X' 



08 
08 



09 

09 
09 
09 
09 

09 
10 

10 

10 

II 



II 17 44.34-^4 " 



18 14 51.37- 0-5v 
18 45 14.161 0.00 



18 50 38. 

18 59 22, 
19-12 33. 

19 18 6. 
19 44 22. 

19 48 52 

19 57 43 

20 10 22. 

20 45 34 

21 II. 



28- 0.17 
57 -»- 0.05 
40+ 0.33 
61 — O.IO 
76— 0.0^' 



O.OI 

0.13 



06 -f- 

75- 
26 

58:+ O.OQ 

94 -i- 0-34 



9. Bisections at sets B and D. 

14.32. Wire A used. 

15.33. Wire B used. 

33. R. A. observed over wires Eg to E4. 



0B8EBVATI0NS WITH THE TBAN8IT CIBCLE. 



87 



I 



C 
3 

z 



I 

2 

3 
4 
5 

6 

7 
8 

9 

10 

if 

12 

13 

M 
i«; 

i6 
17 

IS 

.0 

20 
21 

22 

23 

24 

25 
26 

27 
23 

29 

30 ' 
31 

32 
33 
34 

35 

3^ 
37 

3S 

39 
40 

41 
42 
43 
44 
45 

46 
47 
4? 

49 

50 



I 



No. 



Circle 
Division. 



MICROSCOPE MICROMS. 



4$ 18 

286 34 

9 8 

336 48 

211 2 

3S 6 

42 34 

33 54 
325 10 

32 42 

10 28 
35 30 
35 30 

33 50 
33 50 



33 40 

33 8 
36 22 

307 28 

312 14 

354 2 
48 18 

358 10 
o 44 
9 8 

19 36 
44 58 
47 16 
35 32 
35 32 

33 50 

33 50 
310 16 

24 zo 



307 28 

312 14 

132 44 

5 36 

323 34 
25 10 

331 24 

325 44 

30 18 

32 44 



48 18 
o 44 



TELESCOPE MICROMETER. 



I. 



r. 



10 



// 

9-5 
0.9 

2.6 

I.I 

3.7 

3.5 

3-4 
6.0 

6.1 

4.6 

6.5 
6.9 
6.9 

2.5 
2.5 



0.9 
5.1 

9 24.5 
9 21.8 

9 22.7 

24.4 
21.6 
23.1 
23.0 
25.0 

24.8 
22.1 

25.3 
9 22.6 

9 22.6 

24.8 

24.8 

9 22.2 

24.6 



II. 



8.2 
29.1 

0.0 
28. 6 

5.1 

0.9 
1.4 
3.4 
3.5 
2.3 

4.3 
4.8 

4.8 

0.2 

0.2 



9 28.5 

9 25.5 
25.0 

0.3 

26.6 
28.5 
26.3 

25.4 
24.4 

28.0 



2.2 

28.0 



28.5 

3.4 
22.4 
20.0 

21.5 

25.0 
21.9 
22.0 
22.0 
24.1 

24.0 

21.5 
25.0 

21.0 

21.0 

• 

23.9 

23.9 
21.6 

22.6 



III. 



IV. 



II 

2.6 
24.1 
25.0 
23.6 
29.4 

24.5 

25.1 
20.9 

29.0 

26.1 

29.4 
27.0 
27.0 

23.3 
23.3 



II 

2.0 
26.1 
26.0 

23.7 
27.9 

24.6 
26.4 
29.2 
29.9 

25.7 

0.4 
27.8 

27.8 

23.5 

23.5 



27.0 

24.5 

25.3 
29.4 

25.5 

27.5 

254 
24.9 

23-5 
27.2 



1.8 
26.5 



22.0 

26.0 

6.1 

6.1 

6.6 

8.0 

5.4 
6.6 
6.8 
8.6 

8.1 
5.0 

8.4 

4.9 
4.9 

7.0 
7.0 
6.6 
6.4 



21.2 
19.0 

18.5 
23.8 

21.0 
20.2 
20.2 

19.4 
16.5 

20.0 



24.4 
21.5 



22.0 

275 
16.0 

16.0 

15.6 

16.0 

14.5 

15.5 
15.2 

17.4 

16.6 
14.7 
17.5 
14.5 
14.5 

16.9 
16.9 
16.7 
16.2 



22.7 
18.6 

15-9 
22.9 

20.1 
19.6 
18.5 
18.0 
16.0 

20.0 



24.0 
19.4 



Barom. 



External 
Therm. 



5 
II 

17 
33 



m. 
30.050 
30.046 
30.130 

29994 



69.5 
71.3 

75.9 
79.0 



Attached 
Therm. 



70.0 
69.0 

70.5 
79.0 



Rev. 



27 
24 

27 
22 

30 

27 



27 
24 

26 

22 

27 
29 
24 

27 
26 

24 



28 
27 



I. 



2. 



3. 



4. 



27 
29 

23 
23 
27 

23 
20 

23 

25 

28 

25 
26 

29 

26 I 

24 



24 
23 
27 
27 
24 

29 

28 

25 

28 

24 



783 



178 I 205 



532 



885 



783 



714 



468 

• • 

830 
128 
670 



30 I 440 
26 872 
28 ! 210 



990 



725 



872 



631 
120 

GIG 



248 
708 
440 
664 

150 



178 
677 



592 

779 



638 
114 

326 



558 



873 



903 



66g 

380 
863 i 
958 I 
G70 ' 

750 I 

430 I 
865 I 
31S 



5- 



525 
689 



393 
222 

400 



508 
525 
965 



185 
533 

202 



350 

4G2 
965 

335 
336 



632 
920 
992 



569 
036 



950 
692 



798 
740 



552 
83G 



671 

095 
165 



300 

591 

390 
650 

150 



168 
69G 



498 



662 



678 
26G 

• • 

740 

36G 

881 

785 
036 

6gi 

275 
690 

102 



745 
63G 



595 

• • 

716 
729 

450 

• « 

814 
G56 
642 

220 
7g8 
ig6 
770 



625 

. . I 202 

,562 i 482 

712 684 



358 
670 

042 
g6o 



660 

925 
035 



180 ' 260 
178 I 149 



50S \ 488 



G32 
662 



96G 
76G 



o o 

C o 

N3^ 



12.5 
12.5 
12.5 
12.5 
12.5 

13.0 
130 

130 
130 

13-0 

130 

130 
13.0 

130 
130 



13.7 
13.7 
13.7 
13.7 
13.5 

13.4 
13.4 
13.4 
13.4 
13.4 

13.4 
134 
13.4 
13.4 

13-4 

13.4 
13.4 
13.4 
13.4 



II. 4 
II. 4 
II. 4 
II. 4 

II. 4 
II. 4 
II. 4 
II. 4 
II. 4 

II. 4 



II. 4 
II. 4 



Apparent 
Zenith Dis- 
tance, South. 




// 



48 20 55.5 

286 36 30.1! 

9 " 57-4, 

336 52 7. 31 

^1211 5 6.0 

38 IG 7.91 

42 38 52. G, 

33 58 3.2I 

325 13 374' 

32 44 48.1 



10 31 

35 33 



33.8 
17. i' 



35 32 28.3 
33 55 48.61 
33 51 13-5! 



33 43 50. ii 

33 12 0.9J 

36 25 16.7 

307 31 10.2 

312 17 57.2 

354 4 43.8 
48 20 54.1 

358 13 39-9 
G 47 5.8 

9 II 55.7 

19 38 29.3 
45 I 26.1 
47 19 1.4 
35 35 9-4 
35 35 57.0 

33 55 44-2 
33 52 2.5 

3IG 18 29. G 

24 13 9-5 



307 31 8.3 

312 17 53.1 

133 47 32.6 

5 40 28.2 

323 37 13-4 

25 12 41.3 

331 27 54.7 

325 47 13.6 

3G 21 25.5 

32 47 58.9 



.48 2G 54.3 
G 47 4.9 



Refraction, 



426 

428 



428 



429 



+ 



+ 



-h 



-f 

+ 
4- 



450 
365 

• • 

360 

345 
410 






425 |- 

. . ' + 
420 1- 

42G l-h 



420 

420 



422 



244 
226 
310 



328 I- 



334 



I 
3 



1 + 



H- I 



II 

3.3 

6.5 

9.1 

24.1 

34.0 

44.4 
51.9 

38. G 
39.2 
36.3 

IG.5 

40.5 
40.4 
38.1 

38. G 



37.3 

36.4 
41. G 

12.0 
1.7 

5.8 

3.3 
1.7 
G.8 

9.1 

20.1 

56.3 
I.G 

40.3 
40.3 



-+- 37.9 

+ 37.8 

— I 6.4 

+ 25.3 



I IG.3 
I 0.4 

59-3 

5.5 

40.5 

26. G 
30. G 

37.5 
32.5 



+ I 



35-6 



2.2 

0.7 



Apparent N. 
P. Distance. 



// 



99 28 2G.G 

337 39 44.8 
60 18 27.7 

27 58 4.4 
19 30 41.2 



89 
93 

85 
16 

83 



17 
46 

5 

19 
51 



13.5 

5.1 
2.4 

19.4 

45.6 



61 38 5.5 
86 4G 18.8 
86 39 29.9 
85 2 47.9 
84 58 12.7 



84 50 48.6 

84 18 58.5 

87 32 18.9 

358 36 19.4 

3 23 16.7 



Pa 
g.2 

:r o 

So 



II 

-+- 2.1 
-h 1.6 

-+- 3.1 
-H 3-2 

- 4.4 

-H 3-5 

- 2.9 

G.O 
-I- 0.3 

- G.2 

H- 2.4 

- 1.3 

- 1-3 
-23.8 

- G.2 



- 4.8 

- 4.8 

- 3.8 
+ 1.7 

4- G.4 



45 IG 59.2 G.G 

99 28 18.6 4- G 7 

49 19 59-4 '-f G.8 

51 43 27.8 I G.G 

6g 18 26. G '-I- 1.6 



70 45 IG.6 
96 8 43.6 
98 26 23.6 
86 42 10.9 
86 42 58.5 

85 2 43.3 

84 59 1.5 
I 23 43.8 



-f 2.4 

-h 1.6 

4- 1.6 

- 1.3 

- 1-3 

-23.7 

- 0.2 

4- 1.7 



75 19 56. G I— G.7 



358 36 19.2 

3 23 13.9 
98 19 47.9 
56 46 54.9 

14 42 54.1 
76 19 28.5 
22 33 45-9 
16 42 57-3 
81 28 19.2 

83 55 55.7 



99 28 17.7 



4- G.8 

— 2.2 

— I.I 

— G.8 

— 2.9 
G.G 

— 1.0 

— 1.3 

— G.8 

4- G.7 



G.2 



51 53 26.9 - G.4 



For summary of the elements of reduction see page 3. 



No. 



MOON'S— 



Parallax. 



# II 



Semi-diam. 



I II 



88 



OBSERVATIONS WITH THE TBANSIT CIBCLE. 





• 


DATE. 


a 

s 




1868. 


Sept. 10 


I 




2 




3 




4 


m 


5 




6 




7 

8 




9 




10 




II 


II 


12 




13 




14 




15 
16 




17 

18 




19 




20 




21 




22 




23 




24 




25 
26 




27 

28 


12 


29 


« 


30 




31 




32 




33 




34 


16 


35 
36 




37 

38 




39 




40 




41 




42 




43 




44 




45 
46 




47 
48 




49 




•50 



OBJECT. 



C Cygni . 
I Pegasi . 
(i Aquarii 
^ Aquarii 
Jupiter I, S 



Jupiter II, N. 
Piscium 
Neptune 
Polaris . 
Moon II, S. 
Canis Majoris 



Sun I, S. 

Sun II, xN. 
a Virginis 
a Libne 
a Ophiuchi 



V 
I 

(i 

r 
d 

6 

K 

y 

a 



Sagittarii 
Serpen tis 
Aquila; . 
Lyras 
Aquilae . 

Sagittarii 
Draconis 
Aquilae . 
Aquilae . 
Aquilae . 



c Hydrae . 
a Hydras . 



Sun I, N. 

Sun II, S. 
Polaris, S. 
Virginis 
Bootis . 
Bootis . 



a 



n 

6 
a 

ft 
50 

c 
d 

6 



Polaris, S. P. 
Bootis . 
Ursae Minoris 
Lyrae 
Lyrae 

Draconis 
Aquilae . 
Sagittarii 
Aquilae . 
Aquilae . 



) Aquilae . 
a Aquilae . 
/? Aquilx . 
a» Capricorni 

Venus II, S 
a Leonis . 



t 

V 
(A 

O 



> 



H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 
H. 
H. 

F. 
F. 
F. 
F. 
H. 

H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 
H. 

T. 
T. 

T. 
T. 
T. 
T. 
T. 
T. 

T. 
T. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 
F. 
F. 



SECONDS OF TRANSITS OVER WIRES. 



1. 



4.4 
45.4 
23.7 
30.3 



II. 



III. 



IV. 



7.5 9-2ii6 
48.049.656 
26.227.5133 
33.034.540 
59.7 



21.423.925.531 



38.841.342.8 



48 



34.0,36. 8:38.245 
45.0;47.949.4 56 



58.51 0.0 6 

. . I . . |i6 
1.6 3.2 9 



56.0 
59.0 

33.836.5i37.9 
37.440:241.8 



• * I • ■ 



14.9 
55.9 



17.5 r8.8 
8.1 
59.2 



9.5 
i.o 

6.3 9.010.5 



40.2 

■ • 

33-6 

45.3 
6.7 

31.4 



31.0 
39.3 



7-3 



6.4 

• • 

9.2 
54.7 

45-4 
5.2 

39-2 

35.7 

32.7 

43-9 
5.5 

34.8 
4.8 
0.0 
3.2 



44 

48 
22 
12 

8 

17 



42.944.651 
. . {24.429 
36.337.844 

47-949-3 55 
9. 410. 917 



34.035.6 
58.3 0.2 



35.341 



41 



41.943. 3 

6.8 
io.ijii.6 
24.6'26.o 



9.0110.6 

. . 36.5 
12.4I14.4 

57.859.5 



55-7 1.2 

7.7 9-2 

41.743.3 
38.239.5145 

35.236.842 



49 
4 

8 

18 
32 



17 
12 

22 

6 

25 
15 
49 



46.5 
8.0 

37.4 

7.4 

2.7 
6.0 



48.0 
9.6 

38.. 9 
9.0 

4.3 
7.5 



54 

15 

45 

15 
10 

13 



V. 



VI. VII 



18.6 



21 



58.4 

35.938 

43.045 
3.0 



33.735 

5i.O|53 
51.014 

47.2:49 

58.5 



8.2 10 
18.5I20 

411.5,13 

. . I o 

46.348 



50.5 



52 



27 



21.7 

10.913 

19.021 



053.255 
8J35.2'40 
046.0148 



57.7,59 

I9.2'2I 



7 43. 8=45 

4.5' 6 



143.645 

5'5i.5'53 



35.5:13 
II. o . 

20.322 
34.937 



19.5 



21 



46.0' 19 

24.927 
9.411 



633.6I41 

7I17.7119 
9|52, 2 54 

8,47. 7|49 
8144.8,46 

356.458 
8li8.o|i9 

047.2,49 

417.419 
712.8I14 

815.717 



28.0 
7.0 
044.2 
0,51.0 
o, 7.0 



VIII 



IX. 



29.832.6 

8. 811. 3 

45.7148.2 

52.755.2 



14.415 
841.943 

0I59.2 0.9 

041.0 . . 

6*56.257.9 



818.3 



3'45.9 
3.3 



8. 7.6 



3 

4 
5,20.2 

5! 1.7 

5(54.7 

559.2 



0.7 
9.3 12.0 

18.020.6 



16.5 
24.826.3,28.7 



Mean wire, 



21.224.8 

2.8! 3.8 

56.358.9 



1.0 



3.6 



28.729.630.8 
20.6:22.045.2 

27.5I28.9J31.4 
I 
2.0I 3.5 6.3 

5i.3|55.3 1.7 

54.3155.858.3 
5.9I 7.4,10.2 

27.429.031.5 



51.953.5156.2 
io.6ii2.4 14.9 



51.6 
7 59-6 
50.5 



I.I 



56.0 
3.6 



529.030.633.4 
043. 645.01 . . 



10. 6.0,22.0 
28.0:29.632.3 

55.01 . . . . 
35.237.340.6 
19. 221. 023. 7 

5.8 I2.2|22.0 
26.0I27.53O.3 



0.7 
56,1 
52.954.7 



2.4 

57.7 



5.1 
0.0 

57.2 



4.6 6.3 8.7 
26.327.730.0 

55.3157.0159.3 
25.927.4:30.0 

21.2122.9:25.4 

24. 0*25. 7128. 4 



m. 

7 18 
15 58 
24 35 
30 42 
46 3 

46 6 

1 33 
3 51 

11 52 
41 47 

2 58 

19 8 
21 16 
18 II 

43 32 

28 46 

5 50 
14 27 

27 59 
45 10 
59 18 

9 53 

12 29 

29 46 
39 57 

44 19 

39 43 

21 2 

22 43 
24 51 

II 37 
18 10 
48 20 

* 9 34 

II 44 

48 19 

14 45 
32 24 

45 9 

50 33 
59 17 
9 52 
18 47 
29 44 



s. 



39 
44 
48 
10 

43 
I 



56 

17 

47 

17 
12 

15 



59 
37 
91 
83 
10 



CORRECTIONS. 



Inst. 



; Clock 
.appar'nt. 



4- 



s 
o 
-f- o 
-h o 
4- o 
4- o 



4- 
4- 



13 

66 

01 

13 

294- 

534- 



27 
47 
50 

05 



-H o 

4- o 

+ o 

-h o 



344-0 



50 
10 

85 

69 
96 

22 

90 
01 

67 
14 

77 
45 



4- O 

4- O 

4- O 

+ O 

4- O 

4- O 

— o 

4- O 

4- o 

4- O 

4- o 

4- O 



44 

504- 

30 

94 

33 

83 



73 

37 

97 
86 

32 

71 

67 
08 

84 
88 

33 

87 
12 

42 

76 

79 



o 
o 

4-10 

4- o 
4- O 
4- o 



4- 3 

— o 

— I 

— o 

— o 

— o 

— o 
4- o 

o 

4- o 



o 
o 
o 
o 
o 
o 



4- 



Clock 
adopted. 



Apparent R. 
Ascension. 



s. 

074- 3.17 
II 4- 3.13 
194- 3.08 
204- 3.02 
i6i . . 



16 

15' 

'5| 



16 

151 
37, 



4- 
4- 
4- 
4- 
4- 



5. 
3. II 

3 



4- 3.22 



4- 

4- 



3 
3 
3 

3 
3 
3 
3 
3 
3 



21! 

2I| 

28 4- 
31:4- 

174- 



'4- 3 

I-+- 3 
3.33 + 3 



3 
3 



344-3 



24 
27 

07 
17 



4- 3 

-H 3 

4- 3 

+ 3 



36 
40 

40 
29 
33 
40 
42 



4- 3 
+ 3 



1 + 
4- 



33 . . 

28l . . 

27+ 3.34 

18 4- 3.41 



■^ 3 

+ 3 

+ 3 

4- 3 



2o|4- 3.48 14- 3 



27,4- 3.64 ,4- 3 
36'4- 3.67 14- 3 



28 

28 

40 

37 

19 
18 



4- 
4- 



4- 3.80 
-H 3.70 
+ 3.71 



II 
II 
II 

14 

14 
15 
15 
15 
24 
24 

29 
29 

32 

34 

37 

38 
38 
38 
39 
39 

40 
40 
40 
41 
41 

65 
66 

69 
69 

72 
72 

73 
73 



h. m. s. I 
21 7 21.77 
21 16 I. 50 
21 24 39.21 
21 30 46.14 
o 46 6.40' 



2 /: 



J. - 



C k- I 



s. 1 

- 0.07 

- O.K' 

- 0.0:v 

- 0.0" 



46 9.43 . . 

1 I 36.86^ 3.47 

I 3 54. 3I' . 
I. II 51.12 -h 1.4c 

6 41 50. 68 -71.5b 

7 3 2.14 O/Jf. 



71 
04 

57i . . 
091-1- 4.87 



I 19 11.77 

I 21 19.97 

3 18 15.10, 

4 43 35.70 
7 28 49. 88, 



O.Otj 

0.04 

0,02 



8 5 54.22- 0.C4 
8 14 30.72 -h o.io 

8 28 3.50-1- O.CK) 

8 45 14.15— o.oi 

8 59 22.«;2-t- 0.01' 

9 9 56.95 - "^7 
9 12 33.02 o.ov 
9 29 49.68-1- oM 
9 40 1.26 4- 0.01 
9 44 22.75- 0-* 

' I 

8 39 47.694- 0.01 

9 21 6.47— 0.01 



II 22 47.41 
II 24 55.47 



I II 

13 18 



13 
14 



48 
9 



51.42 -h 

15.03- 
24.25 

38.74 -r 



I 

1. 17, 
0.07' 

O.Cu,), 



07 

39 
03 
05 
00 

02 

02 
01 
01 

03 
01 

00 



4-79 



4- 4.85 

4- 4.78 

4- 4.63 

+ 4.87 

4- 4.88 

4- 4.82 



4- 5.00 



18 14 49.20— 0.2f' 

18 32 29.58— o.ot 
18 45 14.06 T o<^ 



'>'> 



18 50 38.134- o 

18 59 22.45 ^^*' 

19 9 56.94 0'>^' 
19 18 52.65 -f- O.OA 
19 29 49.71 -h OA^ 



19 40 1. 12 
19 44 22.67 

19 48 51.92, 

20 10 22.27 

8 43 17.74 
10 I 20.79- 



0.06 

0.01 

0,92 

O.OI 



7. Wire A used. 

14. Seems one rev. wrong in N. P. D. 

15. R. A. over last four wires of E and VII. 
19. R. A. over sets D and £. 



OBSERVATIONS WITH THE TltANSIT CIRCLE. 



89 



E 

3 

2 



I 

3 

3 ' 
4 

5 : 

6 

7 ' 

6 

9 

10 

II 

t 

12 ' 

U I 

M 

15 
i6 



i3 
19 

20 
21 

22 

23 
24 

2C 

26 



28 

I 
29 

30 
31 
32 
33 
34 

35 ' 
36 

38 I 

39 

I 
40 

41 
42 

43 
44 

45 
46 

47 

48 , 

49 

50 



Circle 
Division. 



16 

37 



9 8 

19 36 

44 58 
47 16 
35 38 

35 38 
33 50 

33 50 
310 16 

20 4 
64 58 

34 48 
34 16 
49 18 

26 10 

59 54 
41 44 

47 10 

5 36 

25 10 

58 o 

331 24 
46 8 
28 32 

30 18 

31 56 
46 54 

34 40 

35 12 
307 28 

49 18 
19 46 
18 58 



312 14 
o 10 
5 36 

323 34 

25 10 

58 o 

35 58 
46 9 

28 32 
30 i8 
32 44 
51 46 
23 18 

26 12 



MICROSCOPE MICROMS. 



I. 



r. " 

25.5. 
0.2 

22.0 

29.5 

29.0 

29.0 

27.5 

27.5 
9 26.9 

8.5 
1.6 

10 17.2 

II. 6 

9.8 

lo 3.7 

9 28.5 
0.4 
0.6 

1.5 
0.6 

28.1 

29.5 

27.5 

0.8 

2.6 

20.1 
16.2 

10 II. I 

"5 
10.9 

15.8 

13. 1 
16.5 



23.1 
25.0 

24.5 

22.8 
26.0 
21.8 
21. 1 
22.0 



9 
9 



22.0 
22.2 
23.0 
22.5 
6.4 
6.4 



II. 



23.5 

29.5 
21.6 

0.4 

28.4 

28.4 
27.2 
27.2 
25.6 

6.5 
0.6 

16. 1 

10. o 

8.0 



28.1 
0.2 
0.6 

O.I 

0.0 

28.5 
28.2 

27.5 

29.0 

1.9 

18.4 
14.5 

9.6 
10. o 

9.8 

15.3 

II. 2 
14.9 



21.9 
23.0 
22.6 

22.0 
24.0 
20.9 

19.5 
21.5 

20.9 
21.4 
22.3 
21.9 
2.0 

3.3 



III. 



18.2 
23.2 
14.9 
23.1 
21.0 

21.0 

19-5 

19.5 
20.5 

29.4 
23.9 

8.0 

1.5 
0.2 



2.2 23.5 



18.8 
21.3 
21.4 
23.1 
20.9 

19. 1 
21.0 
18.4 
20.6 
22.9 

10.8 
5.6 

29.5 
I.O 

1.6 
6.6 
2.9 
6.1 



15.9 
17.0 

17.2 

16.2 
17.4 

13.9 
12.7 

14.4 

14.0 
14.4 

14.4 
14.8 

29.2 

29.3 



IV. 



II 



17. 1 
23.0 
14.0 
22.4 
20.2 

20.2 
18.5 
18.5 
20.6 
6.0 
25.2 

8.8 

3.1 

28.3 

25.9 

20.2 
22.0 
23.0 

23.5 
22.0 

19.8 
21.7 
19. 1 

21.5 
24.9 

12.2 
6.6 



TELESCOPE MICROMETER. 



2.5 


26 


2.7 


26 


6.0 


26 


8.3 


26 


4.5 


24 


7.9 


26 



16. 1 
17.2 
16. 1 

16.0 
17.6 

14-5 
12.6 

15.0 

14.7 
14.7 
15.5 
15.7 
0.5 
1.4 



Rev. 



24 
30 
26 
27 
26 

29 
27 

28 

30 
II 
20 



21 



26 

26 
22 

29 
21 



26 
22 



I. 



631 
082 

793 
872 



430 



380 



590 

358 



940 
29 210 



27 

24 
26 

27 
25 



040 



208 



488 



24 


720 


26 


660 


22 


580 


27 


• • 


22 


715 


28 


390 


27 


000 


26 


580 


28 


085 


26 


810 


24 


680 


36 


• • 


28 


285 


21 


173 



2. 



802 

945 
760 

839 



400 



945 
780 

768 



122 

680 
335 



050 
170 

560 



000 
980 

343 



224 



688 
488 
863 
960 



745 
530 
705 



640 
420 
990 

278 

020 
840 
710 
330 
296 
287 



3. 



220 
890 



670 



770 



4. 



640 

815 
645 
738 
422 



350 
320 
320 

865 



831 



049 

555 



940 
030 

550 
240 
870 

135 
920 

258 
928 



618 
708 



738 



765 
420 

550 

430 

485 

860 
395 

880 

755 
605 

105 
014 

055 



618 
800 
642 
692 



500 
272 
352 
315 



500 



915 
930 
900 



320 
870 
160 



941 



589 
573 



780 

445 

535 

480 
470 

• • 

830 
320 

865 

725 

585 

• • 

061 

088 



1% 

J2 P 






N 



II. 4 
II. 4 
II. 4 
II. 4 
II. 4 

II. 4 
II. 4 
II. 4 
II. 4 
II. 4 
II. 4 

II. o 
II. o 
II. o 

II. o 

II. o 
II. o 
II. o 
II. o 
II. o 

II. o 
II. o 
II. o 
II. o 
II. o 

12.0 
12.0 

12.0 
12.0 
12.0 
12.0 
12.0 
12.0 



II. 6 
II. 6 
II. 6 

II. 6 
II. 6 
II. 6 
II. 6 
II. 6 

II. 6 
II. 6 
II. 6 
II. 6 
12. 1 
12. 1 



Apparent 
Zenith Dis- 
tance, South. 



o 
6 

C/2 



Refraction.! 



Apparent N. 
P. Distance. 



c o 

rt-2 

^ u 

o o 

.2 O 



n 



9 II 53.9 

19 38 28.4 

45 I 25.4 
47 19 0.7 
35 41 22.5 

35 40 35.0 

33 55 44.5 

33 52 54.5 
310 18 25.5 

20 10 55.8 
65 2 45.6 

34 52 20.7 
34 20 20.2 
49 21 6.9 

26 13 23.9 

59 57 21.0 
41 48 24.9 
47 12 26.4 
5 40 28.9 
25 12 41.2 

58 3 6.2 
331 27 55.5 
46 II 31.7 
28 35 10. o 
30 21 26.8 



31 59 
46 58 



5.1 
0.1 



34 43 17.6 

35 15 8.0 
307 31 7.6 

49 21 4-9 
19 49 35.6 
19 I 0.0 



312 17 54.4 
o 13 26.6 
5 40 26.9 

323 37 14. I 

25 12 38.7 
58 3 0.9 
36 I 24.1 
46 II 30.3 

28 35 6.8 

30 21 24.6 

32 47 56.6 

51 46 59.3 
23 20 50.1 

26 16 36.7 



348 



370 
370 
366 



-h 
-h 
-h I 

-f 

4- 
-h 
4- 
— I 

+ 
+ I 



9.0 
19.8 

55.4 
0.0 

40.0 

40.0 

37-5 
37.5 
5.6 
20.5 
59.0 






38.0 

37.3 
I 3.3 



300 i-H 27.0 



I 34.7 

49.1 

59-4 

5.5 
26.0 

I 28.4 
30.1 

57.7 
30.2 

32.4 

34.6 
59-2 

38.0 

38.8 

I 10.5 

I 3.1 

19.5 

18.7 



. . 4- 
310 l-f 
320 1 4- 

I 

. . 14- 
335 !- 

. . ' + 



350 
342 



304 

• • 

248 

243 

255 



4- 



4- 



H- 



468 I— I 



482 



500 
568 

547 



4- 



4- 
4- I 

4- 

1 + 

I 

4- 

+ 
4- I 



2.5 
0.2 

5.7 

42.1 
26.9 

31.4 
41.6 

59.6 

31.2 
33.5 

36.9 
12.7 

25.2 

28.7 



No. Barom. 



External 
Therm. 



Attached 
Therm. 



in. 
30.IC4 
30.120 



82.5 
63.0 



80.5 
69.5 



For summary of the elements of reduction see page 3. 



No. 



60 18 24.1 

70 45 9-4 
96 8 42.0 
98 26 21. 9 
86 48 23.7 

86 47 36.2 

85 2 43.2 

84 59 52.2 

I 23 41. I 

71 17 37.5 ' 

116 II 5.8 4- 3.4 



4- o.i 

4- 1.5; 

0.0 

— o. r ' 

- 1.3. 

I- 1.3' 

-23.5 
j— 0.2 

I— 0-3 I 



85 59 19.9 
85 27 18.7 

100 28 31 .4 
77 20 12.1 

III 5.16.9 

92 55 35.2 
gS 19 47.0 

56 46 55.6 
76 20 28.4 



- 50 

- 4.9 

-I-I3-5 I 
4- 0.7 I 

- 0.7 

- 1.0 I 

- 2.0 i 



0.0 

!— 0.1 



109 10 55.8 j-h 0.6 ; 

22 33 46.6 t— O. I I 

97 18 50.6 -h 0.2 

79 42 1.4 |4- 0.2 I 

Si 28 20.4 1+ 0.5 I 



93 
98 



6 0.9 
5 20.5 



85 50 16.8 

86 22 8.0 

358 36 18.3 

100 28 29.2 

70 56 16.3 

70 7 39.9 



3 23 13. I 
51 19 48.0 
56 47 53.8 



0,0 
4- 1.0 ' 

1 

- 5.0 

- 5.0 

- o.9i 

4-11.4 i 

- 0.9 ' 

4- i.9i 



2.8 
0.6 

1-5 



14 42 53.2 - 3. 
76 20 26.8 I— I. 
109 10 53.5 |— I. 
87 8 26.9 '-h o. 
97 18 51. 1 4- o. 



79 41 59.2 

81 28 19.3 

83 54 54.7 

102 54 33.2 

74 27 36.5 

77 23 26.6 



I. 
o. 
o. 

5. 
I. 



I 



MOON'S— 



Parallax. 



II 



— 20 14.0 



Semi-diam. 



t II 
16 10. I 



12 



90 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
Sept. 17 



18 



B 

3 

Z 



I 
2 

3 
4 

5 

6 

7 

8 

9 
10 

II 
12 

13 
14 
15 

16 

17 
18 

19 
20 

21 
22 

23 



24 

25 
26 

27 

28 



29 
30 

31 
32 
33 

34 

35 
36 

37 

38 

39 
40 

42 
43 

44 

45 
46 

47 
48 

49 



OBJECT. 



K Aquilae . 

y Aquilae . . 

a Aquilas . 

^ Ursx Minoris 

a* Capricorni 

£ Delphini . 

a Cygni . . 

fi Aquarii. 

V Cygni . . 
6i' Cygni . . 



C Cygni . 

I Pcgasi . 

fi Aquarii 

f Aquarii 

e Pegasi . 



Jupiter, I. S. 
Jupiter II, N. 
e Piscium 
Neptune . 
Polaris . 

Venus II, S. 
a Hydrae . 
a Leon is . 

Sun I, S. . 

Sun II, N. . 

Polaris, S. P. 
r/ Bootis . 
e Bootis . 



?' Ursae Minoris 
fi Aquarii 
61' Cygni . . 
C Cygni . . 
I Pcgasi . . 

/? Cephei . 

II Cephei . 

fi Capricorni 

g Draconis, S. P. 

a Piscis Australis 

a Pegasi . . . 
4i63Groombridge . 
a Andromedae . 
4 Draconis, S. P. 
K Draconis, S. P. 

Jupiter I, N. . 
Jupiter II, S. . 
g Piscium 
Neptune . 
Polaris . 
Venus II, S. . 



t 

0) 
<A 

O 



H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 
H. 

T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 
H. 
F. 



Si 
Ui 

wwm 



SECONDS OF TRANSITS OVER WIRES. 



I. 



II. 



III. IV. 



V. 



I I I 

VI. VII. yiii IX. 



39.241.743. 
36.4,39.8:42. 
117. 2, 19. 821. 



349-651- 
1,50.853. 

227.3129. 

56.7! O.O] 1.8 IO.o|l2. 

41.344.6,46.454.056. 



32.3 34. 736. 3,42. 644. 7|46.3i52 
43.5146.0,47.753.9156.2,58.01 4 

5.41 7.9, 9-2i5.6|i7.6;i9.625 
. . I . . 54.042.035.0I17.0I10 

28. 4 31. 2 32. 539. 040. 943. 349 



953-8; o 

556.7, 4 

4'3i.2 37 
8,15.623 

859-5I 7 

I 
6 19.226 
6;58.6, 5 
0136.342 
8,42.949 
841.947 



2.6 5.8; 7. 

43-546.3,47. 
2i.8,24.4'25. 

28.731.2I32. 

27.5,30.031. 



5 14.6 16. 

9 54-3156. 
932.034. 
40. 

39- 



738.9 
537.7 



45.748.249.7; 



157.459.2 
50.0,52.4153.8' 0.0 
58.7 1.3 3.0 9.3 
9.034.0 



49.0 
3.4 



48.850.657.0 

51.7153.359.4 
5.8 7.413-6 



5.5 7. 213. 1 



13.6 



14. 821. 2 



39.0 . . 
. . 19.0 
54.557.6159-3, 6.0 



. . 39.o;28.o 
17.O1I9.4121.027.3 
40. 9|44. 346. 254.0 

2.4 5-3 7.2'i4.2 
43.4I46.047.554.2 



20.827.6,31.850.3 
21. 228. 8|33. 352.0 

50.7I53.7 55.0' 1.3 
30. 8119.3114. 047. 9 
4.6 7.5 9.316.5 



56.259.0 
45-5'54.4 



0.4! 6.8 

59.721.7 
i8.3|2i.2J23.0|29.9 

27. 3I 7.0 
5-8:46.7 



47-61343 
18.0 9.8 



18.2 



20.6 



22.2 . . 
29.6I31.6 
19.8122.3,23.7129.9 



53-3i 



55.9 



57.3 



43.0 



3.4 
27.0 

45.2 



1.4 

2.2 

II. 4 

0.0 

58.9 

1-5 

15.8 

15.0 

23-3 

53-0 

21.0 

8.2 



3-3 



4.2|IO 

13-419 

22.048 



i.o 7 

3.6| 9 
17.824 



17.2:23 



25.3 
29.0 

23.5 
10.8 



17.01 5.055 



31 

4 

27 
17 



29.4,31.3 
56.859.3 



16.5 
56.4 

56.2 

58.2 

3-4 
38.9 

18.8 



18.8 
58.5 



37 

7 

26 

5 



2.0,19 

4.2,23 

5. 611 

30. 6l I 

2 1. 0)28 



8.9,10.917 
29.0136.358 



32.2 

56.7 
41.0 



33.7 



34-4:41 
46.2I36 

34.8 16 



38 

35.6:37 
31.8,34.040 

5.51 7.413 
54.o;i3.ol33 

47.2149.251 



Mean wire. 



754.356.7 
5 6.0, 8.6 

927.4,30.0 

o . . , . 

351.253.6 

o' 1.6 4.0 
7, 6.910.5I 
939.241.8, 
525.529.2 
4, 9-5 12.4 



027.930.8 
6| 6.9 9.4 

443.946.3 

250.953.5 
949.452.0 

I I 
9 7.910.3 

3 . . I . . 
012. 014. 3 
320.923.5 



5' 9.0I . . 

8,11.413-9 
025.728.4 



3 25-0| 

533.OJ . . 

o ' 

729.532.0 
619.422.3 



539.041.7 

o| 9.0,12.2 

0,27.830.7 

o 6.6 9.3 



424.331.6 
027.4,34.8 
8,13.416.0 
5,57.346.6 
3,30.032.8 



3 19. 021. 6 
2| 3.312.2 
4,43.2|46.2 
4:27- oi . . 



312.0 



4.2 



5,39.942.6 
6 . . I . . 
2:41.7,44.3 

7;i5.3i7.6 
o 

4 



m. s« 

29 44-51 
39 56.04 
44 17.62 
52 32.00 
10 41.04 



CORRECTIONS. 



Inst. 



Clock 
appar'nt. 



26 51.68 

36 53.49 

45 29.44 

52 12.79 

o 56.88 



8. 
-f 0.06,+ 

-h o.oi -+- 

-f O.OI -+- 

- 8.96I 

-h 0.08 4- 



s. 

4.95 
5.12 

5.10 

• • 

5.01 



Clock 
adopted. 



s. 

4- 5.01 
5.61 
5.01 
-h 5.01 
-h 5.01 



-+- 
4- 



O.OO-h 5.05 -h 5.02 

0.1414- 5.14 l-H 5.02 

0.07,4- 4.93 |-i- 502 

O.li; . . 4- 5.02 



— O.IO' 



7 16.78 — 0.06 4- 

15 56.571- 0.02> 

24 34.ii|4- 0.06 + 

30 40.98,-1- 0.07 4- 

37 39.74-1- 0.01 4- 



42 58.124- 0.03 

43 I.32|H- 0.03 
I 2.10,4- 0.031 



03 
99 
96 
97 
07 



4- 5.02 



4- 
-H 
4- 
4- 
4- 



5-03 
5.03 

5.03 
5-03 
5.03 



3 11.20 
II 58.94 



4- 0.03, 
— 6.96 



4- 



5.06 
5.06 
4- 5.06 
4- 5.06 
+ 5.07 



46 58.97— 0.18 . . 4- 5.21 
21 1. 51— 0.18,-1- 5.26 -h 5.22 

I 15.77'— o.i8|-|- 5.22 -f 5.23 



44 15.19 
46 23.24 

51-70 

19.08 

8.41 



II 

48 

39 



0.18 
0.18, 

0.581 

0.18 4- 5-27 l-h 5-27 

0.18 4- 5.26 4- 5.28 



+ 5.25 
+ 5.25 
. 14- 5.26 



56 17.224- 0.28' 

45 29.291— o.i8'4- 5-32 

o 56. 63,- o.i8i . . 

7 16.54- 0.18,4- 5.38 
15 56.32'— 0.184- 5.39 



26 56.00 

39 58.10 

46 3.43 

23 38.54 
50 18.76 

58 8.83 

48 28.92 

I 32.20 

5 46.68 

27 40.96 

42 30.33 
42 33.62 

I 31.97 
3 5.49 



0.17 
0.161 

0.18,4- 

0.22' 

0.184- 



5.27 

« • 

5-34 



+ 5-34 

-+- 5.35 

+ 5.35 

+ 5-35 

-H 5.35 



+ 5-35 

+ 5-36 

+ 5.36 

-H 5.36 

+ 5.37 



0.18,4- 5.49 '-+- 5.37 

O.161 . . (4- 5.37 

0.18- 5.35 I-+- 5-38 

+ 5-38 

H- 5.38 



— 0.24! 

— 0.23 

— 0.18 

— 0.18 

— 0.18 

— 0.18 



II 50.20I4- 0.18 



50 47.20 



— 0.25 



4- 5-38 

H- 5.38 

-»- 5.39 

-+- 5.39 

+ 5.39 

+ 5.49 



2« I 



c 

Apparent R. I ^'J ! 
Ascension. • "^ ^ 



.IS 



h. m. s. I s. 
19 29 59.58 4 0.06' 

19 40 1.06,— O.IO 

19 44 22.64— 0.06, 

19 56 28.05- 5.3? 

20 10 46. 13, 0.00 

20 26 56.70— 0.02 
20 36 58.37— 0.12 
20 45 34.53+ 0.11 

20 52 17.70— 0.09 

21 I 1.80 -i- 0.24 



21 7 21.75— 0.01 
21 16 1. 581— 0.04 
21 24 39.204- 0.07 
21 30 46.0S -h 0.q(< 
21 37 44.78'— O.Ot) 
I I 

o 43 3-21, . . 

43 6.41 . . 

1 I 7- 19+ 3-4<> 
I 3 16.29' - • 
I II 57.05 + 5<^' 

8 47 4.00— 0.91 

9 21 6.55- 0.04 

10 I 20.82, 0.0(> 

I 
I 

11 44 20.26 . . 

11 46 28.311 . . 
I II 56.38 -t- 4.13 

13 48 24.17,- 0.03 

14 13 13.51 + o-oi 

I 

19 56 22.84+ 042 

20 45 34.46-}- 0.05 

21 I i.8o,-h 0.31 
21 7 21.71 — 0.04 
21 16 1.49— 0,12 

21 27 1. 18 0.00 
21 40 3.30— 0.23 

21 46 8.6ij4- 0.04 
10 23 43.68'— 0.16 

22 50 23.95J-I- 0.02 

22 58 14.02— O.Il 

23 48 34.13-I- 0-23 

o I 37.404- 0.03 

12 5 5I.82I- 0.27 

12 27 46.11— 0,52 

o 42 35-53' - 

42 38.82 . . 

I I 37.18+ 3.39 
I 3 10,701 

1 II 55-77 -f 3 32 
8 50 52.44— 0.90 



47. Wire A used. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



91 



.0 

a 



I 
2 

3 
4 
5 

6 

7 

8 

9 

10 

II 

12 

13 

15 

i6 , 

17 ' 
iS 
19 ■ 
20 

i 

21 ! 

22 I 

23 I 



I 



24 

2C 
26 

27 
2% 



29 
30 

31 
32 

33 

34 

35 
36 
37 

3^ 

30 
40 

41 
42 
43 

44 

45 
4^> 
47 
43 
49 



Circle 
Division, 



46 8 

28 32 
30 18 

309 56 
51 46 

27 58 

354 2 

48 19 

358 10 
o 44 

9 8 
19 36 

44 58 

47 16 

29 34 

35 58 
35 58 
33 52 
33 52 
3x0 14 

23 24 

46 54 
26 12 



37 30 
36 58 

19 46 
II 12 



309 56 
48 18 

o 44 

9 8 
19 36 

328 52 
328 8 

52 58 

295 16 

69 6 

24 20 
325 10 

10 28 
297 12 
289 24 

36 o 
36 o 
33 52 
33 52 

310 14 

23 44 



MICROSCOPE MICROMS. 



I. 


II. 


r, n 


// 


9 18.2 


17.0 


21.2 


19.4 


22.9 


21.4 


9 18.4 


16. 1 


20.8 


19.9 


21.0 


18.4 


19.5 


16.7 


22.0 


21. 1 


22.2 


19.8 


18.9 


16.5 


22.4 


19.5 


22.8 


21.4 


18.5 


17.0 


20.0 


19.0 


22.1 


19.8 


9 15.5 


12.0 


9 15-5 


12.0 


9 17. 1 


14.8 


9 17. 1 


14.8 


9 II. 6 


10.2 


9 29.2 


25.9 


10 12.2 


9-3 


10.7 


6.9 


II. 4 


8.2 


10 13.2 


10. 1 


13.7 


II. 3 


II. 8 


9.4 


9 12.4 


9.6 


9 12.0 


10.8 


14.6 


12.4 


18. 1 


14.5 


17.4 


15.0 


15. 


II. 6 


15.0 


II. 5 


12.6 


10. 


9 9.5 


7.0 


12.5 


II. I 


16.6 


14.0 


13.2 


II. 


9.5 


6.8 


10.5 


8.7 


9 9.0 


8.0 


10.5 


8.0 


10.5 


8.0 


II. 5 


9.8 


II. 5 


9.8 


9 9.0 


6.5 


10.7 


7.9 



III. 



tl 



12.0 




14. 1 




15.3 




13.6 




14.3 




13.5 




13.4 




15.8 




15.0 




12.9 




15.4 




16.2 




II. 3 




13.5 




14.4 





8.0 

8.0 

10.5 

10.5 

7.5 

22.6 
6.0 
4.0 



4.0 
6.2 

8.5 
5.3 



6.4 

5.9 
9.6 

II. o 

10.7 

8.7 

8.8 
4.9 
4.0 
5.6 

9.2 

8.5 

3.4 
6.4 

5.4 

4.0 
4.0 

5.1 
5.1 
3.5 

5.5 



IV. 



u 



:2.o 

■3.9 
5.6 

3.2 

[4.0 

3.6 

:2.5 

5.1 
5.1 

1.8 

5.0 
5.6 
1.8 

:3.o 
[4.6 



9-5 

9.5 
10.8 

10.8 
7.5 

23.3 
8.0 
6.0 

6.1 
8.0 

9-3 
7.3 

9.4 
8.1 
9.8 

12.5 
II. o 

10.6 

11. 

8.0 

6.5 
8.3 

11. 1 

9-5 

5.5 
8.0 

6.6 

6.3 
6.3 
6.9 
6.9 

5.3 
7.0 



TELESCOPE MICROMETER. 



Rev. 



27 
28 

26 

26 

27 

27 
30 

29 
25 

28 

25 
30 

27 

28 

30 

26 
29 
26 
20 

23 

20 

23 
21 



23 
22 

24 

25 

26 

29 

28 

25 
31 

29 
26 

23 
29 
24 

28 

27 
27 
23 
27 

25 
22 

26 

28 

23 

26 



I. 



050 
165 
970 
250 
790 

290 
040 
170 

985 
590 

340 
790 
260 
930 

755 

420 

• • 

080 

• • 

410 
950 



184 
864 



695 
850 

935 

• • 

205 

440 
652 
890 
380 
810 

560 

• • 

590 
470 

760 
440 



556 



2. 



035 
150 

150 
275 

775 

260 
770 
210 
000 
380 

160 
680 

330 
840 
770 

280 

• • 

190 

730 
360 

990 
704 
090 

290 



670 

765 
770 
250 
130 

450 

795 
960 

475 
990 

440 
005 

445 
540 
960 

625 



580 
980 
660 
498 



3. 



300 



395 



700 



645 



4. 



855 
100 

970 

390 
750 

210 
670 
125 
090 
290 

130 
600 
300 

750 
630 



280 

• • 

755 
325 

942 
558 



652 



870 

675 
700 

840 

410 

940 



860 
400 
840 

350 
920 
370 



850 



205 
490 
865 
655 
325 



805 
990 
780 
370 
760 

155 
700 
000 

095 
400 

005 
460 

145 
640 

590 



290 

405 



624 



789 

630 

645 
720 

• • 

980 



790 
240 

825 

330 

• • 

370 
730 



410 



595 
320 



c c 



n 



2.9 
2.9 
2.9 
2.9 

2.9 

2.9 

2.9 
2.9 

2.9 

2.9 

2.9 
2.9 

2.9 

2.9 

2.9 

2.9 
2.9 
2.9 

2.9 
2.9 

2.8 
2.8 
2.8 

2.8 
2.8 

2.8 
2.8 

3-0 

2.9 
2.9 
2.9 
2.9 

2.9 
2.9 

2.9 
2.9 

2.9 
2.9 

2.9 

2.9 
2.9 

2.9 

2.9 
2.9 
2.9 
2.9 

2.9 
2.9 



Apparent 
Zenith Dis- 
tance, South. 



n 



46 II 26.7 

28 35 6.7 
30 21 22.4 

309 59 37.5 
51 49 II. 5 

28 I 20.6 
354 4 42.9 

48 20 49.5 

358 13 37.6 

o 47 4.3 

9 II 51.0 
19 38 26.2 

45 I 21.9 
47 18 56.8 

29 36 26.5 

36 I 40.4 
36 o 53.4 
33 55 41.6 
33 57 3.0 

310 18 27.0 

23 28 48.1 

46 57 53.1 
26 16 34.8 



37 34 
37 2 



2.2 
6.3 



19 49 34.0 
II 15 19.2 

309 59 36.7 
48 20 49.4 

o 47 1.6 

9 It 52.4 
19 38 25.1 

328 54 54.2 

328 II 35.9 

53 2 19.4 

295 18 57.3 
69 10 3.6 

24 23 6.3 

325 13 31.8 

10 31 27.8 

297 16 24.1 

289 27 19.2 

36 3 56.9 
36 444.1 
33 55 41.3 

33 57 38.9 

310 18 26.0 

23 37 II. 8 



I 

6 

o 



C/3 



565 



570 



590 



598 
630 



632 

588 
578 
563 



529 



478 



605 
618 



630 

■ • 

640 
638 



640 
650 



642 



650 

584 



Refraction. 









-f- 



II 






0.7 

31.7 

34.1 

9.4 

14.0 



H- 31. 1 

- 6.1 

-H I 5.7 

- 1.8 
-f 0.8 



— I 



9.5 
20.9 
58.6 

3.5 
33.3 

43.0 
43.0 
39.8 
39.8 
9-7 



-h 25.4 
-h I 2.5 
4- 28.8 



I 

I 



44.3 
43.6 

20.6 
II. 4 



10.0 
6.6 
0.8 
9.6 

21. 1 



- 35.7 

- 36.7 
4- I 18.7 

- 2 4.6 
-H 2 34.7 

-+- 26.9 

- 41.3 
-f II. o 

- I 54.8 

- 2 46.4 



-+- 
— 1 



43.2 
43.2 

39-9 
40.0 

9.9 

25.6 



Apparent N. 
P. Distance. 



2 «fl 

P c 

CO *M 

.!2 o 



n 



97 18 48.6 — 1.8 

79 41 59-6 - 1.3 

81 28 17.7 — 1.9 

I 5 49-3 + 1.2 

102 56 46.7 !— 3.3 



79 8 12.9 
45 10 58.0 
99 28 16.4 
49 19 57-0 
51 53 26.3 



- 1.9 
+ 0.7 

- 1.6 
+ 0.3 

H- 0.4 



60 18 21.7 ~ 1.2 

70 45 8.3 '4- 1.4 
96 8 41.7 |— 0.2 
98 26 21.4 '— 0.6 
80 43 21.0 I— i.o 



87 8 44.6 

87 7 57.6 
85 2 42.6 

85 4 4-0 
I 24 38.5 

74 35 34-7 
98 5 16.8 

77 23 24.8 

88 41 7.7 
88 9 II. I 

70 56 15.8 
62 21 51.8 



~ 1.3 

-- 1.3 

— 23.1 

— 0.2 

— 0.4 

— 5.4 

— 1-9 

— 0.8 



5.3 
5.3 

2.0 
3.1 



I 4 47.9 0.0 
99 28 17.2 |— 0.8 
51 53 23.6 - 2.1 
60 18 23.2 -+- 0.5 
70 45 7.4 ,-+- 0.6 



20 o 39.7 

19 17 20.4 

104 9 59.3 

346 23 13.9 

120 18 59.5 

76 29 54.4 

16 19 II. 7 

61 38 0.0 

348 20 50.5 

340 30 54.0 

87 II 1.3 
87 II 48.5 
85 2 42.4 
85 4 40.1 
I 23 37.3 
74 43 58.6 



'-f 



2.5 

1.7 
0.6 

2.0 



H- 0.3 

-f- 0.4 

I- 3.3 

- 0.7 

- 0.7 
H- 0.4 

- 1.3 

- 1-3 
—23.0 

- 0.2 

- 1.3 

- 5.5 



N'o. I Barom. 



5 

29 



in. 

30.304 
30.412 



External 
Therm. 



Attached 
Therm. 




For summary 0/ the elements 0/ reduction seepage 3. 



No. 



MOONS— 



Parallax. 



/ If 



Semi-diam. 



/ // 



12 



OBSEBVATIONS WITH THE TRANSIT CIRCLE. 



1 


1 : 
. 1 


1 

• 




SECONDS OF TRANSITS OVER WIRES. 


CORRECTIONS. 




5 s 

e 


DATE. 


E 

3 


OBJECT. 


t ii 








Apparent R. 
Ascension. 


isccllai 
orrectii 


.0 




I. ill. III. I IV." V. 'VI.'viI.VIII IX. 


j 

'Mean wire. 


Inst. 


Clock 


Clock 
adopted. 











^ 1 ! ■ 1 ; ■ ' 






appar'nt. 




13'± 


1868. 




1 : i ' 

! ; 1 ' 


1 




m. ^. 


s. 


s. 


s. 


h. in. s. 


s. 


Sept. 18 


I 


a Leonis .... 


; F. 


. ; 3.0 5.7 6.913.315.417.5.23.925.4128.2 


I 15.48— 0.26+ 5.60 


+ 5.50 


10 I 2O.72I— O.II 




1 2 }* Leonis .... 


! F. 1 . "23. 5 16. 2 17. 8 34. 5 36. 7.38. 9.45. 2 

' I : ) 1 1 


I47.C 


► 49.6 


> 12 36.60 


— 0.23+ 5-47 


-H 5.50 


10 12 41.87 


-h 0.05 


19 


! 3 Sun I, S. . 


F. 


1 1 ' i 1 
. 138.040.842.248.350.552.7 


'58.9 


) 0.1 


2.5 


47 50.44 


— 0.29 


. . 


+ 5.52. 


II 47 55.67 


• • 




4 Sun II, N. . . . 


F. ; . j . . 54.5.56.6,58.41 0.6 


) 2.t 


► 6.8 8.3 


II. 


• 49 58 58 — 0.29 


. . 


H- 5.52 


.11 50 3.82| . . 




5 ' Mercury, (center) . 


F. . 52.6 55. 0.56. 3I 2.9; 4.7 


6.7 


12.9.14.517.0 


» 52 4.73- 0.31 


. . 


■+- 5.53 


12 52 9.95 4- 0.02 




6 Polaris, S. P. . . 


F. ■ . . . ; . . j . . 2i.o58.o'29.olio.o . . 


• • 


II 56.05 — 8.20 


. 


-+- 5.53 


I II 53.38;-!- 0.72 




7 a Virginis 


F. 1 . 1.2! 4.0 5.3 10.0.12.1114.2 . . 

1 1 


• • 


• • 


18 13.92 


- 0.32+ 5.47 


+ 5.53 


13 18 15.13 -1- 0.07 




' 8 


a Bootis .... 


1 1 
F. 1 . ,20.4[23.o;24.5 3i.2 33.2 35.7'42.043.8'46.3 


9 33.34 


- 0.23 -h 5.53 


-+■ 5-54 


14 9 38.65 -h o.oi; 




9 


Sagittarii . 


H. ' . '48. o!5i.Oj52. 559.4 1.71 4.o!io.8 12.515.4 


47 1.70 


- 0.37 -h 5.64 


4- 5.56 


18 47 6.89— O.IO 




■ lo C Aquilae .... 


1 H. 1 . 4.4 7.2. 8.715.0.17.019.1125.427.0.29.6 


59 17.04'- 0.25I-H 5-61 


+ 5.56 


18 59 22.35 — O.OI 




II </ Sagittarii . 


H. . 38.74i.5,43.049-5!5i.753 8 0.3 2.o| 4-7 


, 9 1.69- 0.35 
18 0.28 -h 0.32 


-1- 5-47 


+ 5.56 


19 9 56.90!-^ O.OI 




12 ' r Draconis . 

1 1 


H.I . 18.327.1I31.953.4 0.4; 7.2 

1 1 . 1 1 


28.333.642.3 


• • 


+ 5.56 


19 18 6.16 


-f- 0.12 




■ 13 


K Aquilae 


H. 


. 132.034.636.042.2 


44.2,46.1 


52.354.0.56.6 


29 44.22 


— 0.32 


+ 5.59 


-H 5.56 


19 29 49.46 


— 0.031 




1 14 , a Aquilae, (R.) . . 


H. I . ' 4.6 7.2j 8.8 . . 


• • 


18.9 


21. 1 . . 


• • 


44 16.97 


0.00 


• • 


+ 5.57 


19 44 22.54 


— 0.15! 




15 ] /. Ursae Minoris . 


H 40.0.28.0 


16.0 


4.0 


• • • • 


• • 


56 15.35 


+ 9-79 


« • 


H- 5.57 


19 56 30.71 


— 0.67 




' 16 a^ Capricorni 


H.I . 28.430.932.538.740.943.0 


49.450.9 


53.5 


10 40.91 


- o.33> 5.52 


-H 5.57 


20 10 46.i5J-h 0.05 




17 TT Capricorni 


H. 


. 30.ij32.6 34.340.9'43.0j45.3 


5i.6j53.355.9 


19 43.00— 0.35 •+■ 5.62 


-+■ 5.57 


20 19 48.22 — 0.05 




1 
18 ; // Aquarii 


; 1 

H. . 16.8 19.5 


1 1 
21.027.029.231.2 


37.439.041.5 


45 29.18- 0.32,-+- 5.56 


4- 5.58 


20 45 34.441+ 0.04 




' 19 ^ Cvgni .... 


H. . 56.259.5 


1.6' 9.7J12.414.9 


23.2:25.2 


28.4 


. 52 12.34 


— 0.14 


• • 


+ 5.58 


20 52 17. 781-1- 0.02 




20 . 61* Cygni .... 


H. 1 


4o.9,44.o!45.9!53.9 56.5 58.9 


6.6l 8.6 

1 


II. 9 


1 56.36 


— 0.16 


• 


+ 5.58 


21 I 1.784- 0.30 




21 1 C Cygni .... 


H. . 


2.2 


5.0 


6.9113.916.2.18.7 


25.6127. 5'30. 4 


7 16.27 


— 0.19-I- 5.64 


+ 5.58 


21 7 21.661— 0.07 




' 22 1 I Pegasi .... 


H. 


. 13.245.9 

1 


47.554.0 


56.2158.3 


4.8 


6.4 


8.9 


15 56.13 


— 0.23+ 5.62 


+ 5.58 


21 16 1.48 — 0.12 




23 


/3 Aquarii 


H. 


. 21. 624. 225. 531. 733. 9 


36.0 


1 
41.943.7 


46.0 


24 33.83 


— 0.31 


-+- 5.59 


4- 5.59 


21 24 39.11 


0.00 




24 


^ Aquarii . . 


H. . |28. 531. o|32. 5138.8:40.8142. 8 


49.050.8 


53.2 


30 40.82 


- 0.32 -+- 5,49 


+ 5.59 


21 30 46.09 


-f O.OJ? 




25 r/ Aquarii 


H. . 19.722.2 


23.629.932.033.9 


40.041.6 


44.0 


28 31.88 


— 0.30-h 5.53 + 5.60 


22 28 37.18'-+- 0.07 




26 C Pegasi .... 


H. ' . '37. 840. 3;4i. 748. 0,50. 2152. 2 


58.4 0.0 


2.5 


34 50.12 


- 0.27-1- 5.71 


-h 5.60 


22 34 55.45I- 0,07 




27 I Cephci . . . . , 


H. . .29.335.1 


38. 4153. 458. 5* 3.3 


18. 221. 7 


27.9 


44 58.42 


■+■ O.II 


• • 


-h 5.60 


22 45 4.i3;-»- o-oi 




28 a Piscis Australis . 


H. . 

1 

1 


4.6 


7.5 


9.3 


ii6.5ii8.7 


21.0 


28.2 


30.0 


33.0 


50 18.76 


— 0.38 


+ 5.54 


-h 5.60 


22 50 23.98 


4- 0.05 


21 


1 

29 j Sun I . . . . 


! 
T. . '48.9 


51.3 


52.9 


59.2 1.0 


3.1 


9-3 


10.8 


13.5 


55 1.09 


- 0.39 


• ■ 


+ 6.04 


II 55 6.74 


-r64.09 




30 1 Polaris, S. P. . 


T. i . ,23.041.0142.049.0! . . 


• • 


• • 


• • 


■ • 


12 2.88 — 11.19I . . 1 


-h 6.05 


I II 57.74-+- 4.IQ 




31 V Bootis .... 


T 

A- • ' • 1 • • • ■ 


14.0 16.2 18.4 


20.4 


27.028.6 


31.2 


48 18.33 


— 0.31 


-h 6.13 


-h 6.06 


13 48 24. oS — O.IO 




32 a Bootis .... 


T. 


. 19.922.524.030.7.32.935.1 


41. 643 .2 


45.9 


9 32.87 — o.3o|-»- 6.06 


-1- 6.06 


14 9 38.63 -h O.OI 




33 


F Bootis .... 


T. 


■ 


53.756.8-58.4 5.3' 7.5 

II 


9.7 


16.9 


18.6 


21.5 


39 7.60 


— 0.26 -h 6. II 


-h 6.07 


14 39 13.41 


4- 0.05 




r 

34 a Scorpii . . . . 1 


1 1 1 < 1 
T. ■ . , 1.3 4.2 5.8,12.9 


15,217.3124.0 


25.8 


28.6 


21 15.01 


- 0.51 


-»- 6.03 


-f 6.08 


16 21 2o.58.'-h 0.07 


1 


35 1 Moon I, N. . . ' 


T. 13.2 47.350.351.858.3! 0.6 


2.81 


9.4 II. 


13.9 


31 0.60 


- 0.47 


• • 


-h 6.08 


16 31 6.2i'-h66.92. 


1 


36 K Ophiuchi . . . 1 


T. ! . 8.3 10. 912. 4 18. 6|20. 722. 8 


29.030.6 


33.0 


51 20.70 


— o.35'-f- 6.00 


-h 6,09 


16 51 26.44J-h o.i2| 


1 


37 ' d Sagittarii . . . ' 


H. . 38. i;4o. 9142.4149. 051. 053. 2 


59.7 


1.4 


3.8 


9 51.06 


— 0.48I4- 6.19 


-h 6.14 


19 9 56.73!- O.I3; 




38 r Draconis . 


H. . 17.326.0 


31. 452. 258. 41 5.8 


27.3 


32.7 


41.4 


17 59.17 


-h 0.46 


m m 


-h 6.14 


19 18 5.77 


— 0.12 


' 


39 K Aquilx .... 


H. 


1 
. 31.433.9 


35.5I41.743.7 


45.9 


52.053.5 


56.0 


29 43.73 


— 0.43 -h 6.16 


-h 6.14 


19 29 49.44 


— 0.02 


1 

1 


40 ^ } Aquilae .... 


H. . ,42.945.547.053.255.1.57.3 


3.5 5.0 


7.8 


39 55.26 


— o.35!-h 6.20 


-h 6.14 


1940 1.05 


— 0.05 


1 


41 Aquilse 


H. 


• 


4.4 7.0 8.5I14.8 16.9 18.9I 


25.226.7 


29.2 


44 16.84 


— 0.361-h 6.19 


-+- 6.14 


19 44 22.62 — 0.04 




42 A Ursae Minoris . . | 


H. 


• 


• • 1 • • 


• • 


24. on. 057. Oj 


48. o| . . 


• • 


56 11.35 


-+-13.42 . . 


-h 6.14 


19 56 30.91 


-h 0.22; 




43 


r Capricorni . . ' 


H. . 


29.6,32.5 


33.9 


40.5 


42.5 


44.6 


51.2 


52.8 


55.5 


19 42.57 


— 0.48+ 6.15 


-H 6.15 


20 19 48.24 


0.00 




44 f Delphini . 


H. : . 38.4141.0 


42.6 


48.750.8' 


52.9 


590 


0.8 


3.2 


26 50.82 


- 0.34 


H- 6.20 


-+- 6.15 


20 26 56.63 


— 0.04, 




45 


fi Aquarii 


H. 


. 16.3 


18.9 


20.4126. 7128.730. 8 


37.0 


38.7 


41.2 


45 28.74 


— 0.43.-1- 6.08 


-f 6.15 


20 45 34.46 


-h O.oq 




46 V Cygni . . . . j 


H. 


• 


55.6 


58.9 


0.9 


9.0 


II. 8 


14.4 


22.6 


24.6 


28.0 


52 11.75 


— 0.18 


« • 


-h 6.15 


20 52 17.73 


-h O.OI 




47 


bV Cygni .... 


H. 


• 1 


40.343.5! 


45.4 


53.255.5 


58.4 


6.2 


8.2 


II. 3 


55.78 


— 0.20 


• • 


-h 6.15 


21 I 1.73 


4- 0.28 




48 


C Cygni .... 


H. 


1.6 


4.6 


6.5 


i3.6[i6.o 


18.2 


25.2 


27.0 


29.9 


7 15.84 


— 0.25 


-f 6.10 


-h 6.16 


21 7 21.75 


4- 0.05 




49 I Pegasi .... 


H. . 


42.7 


45.4 


46.753.555.6 

1 


57.8 


4.4 


6.0 


8.7 


15 55.64 


— 0.31 


■+- 6.17 


-f- 6.16 21 16 1.49 


— 0.09 

1 



5. Chronograph record appears im. wrong. 
36. Seems i rev. wrong. 



0B8EBVATI0NS WITH THE TRANSIT CIRCLE. 



93 



g 

a 
Z 



I 
2 

3 

4 

5 
6 

7 

8 
9 

10 

II 

12 

13 

14 

15 
i6 

17 

i8 

ii9 

I 20 
21 

i 23 

t 24 

26 

27 

2S 



29 

30 

31 
32 

33 

34 

35 
36 

37 
38 

39 
40 

41 
42 

43 

44 
45 
46 

47 
48 

49 



I 



No. 



9 
37 



Circle 
Division. 



MICROSCOPE MICROMS. 



26 12 
18 20 



37 54 

37 22 

44 38 

307 28 

49 18 

18 58 
65 16 
25 10 
58 o 

325 44 

46 8 

309 56 
51 46 
57 26 

48 18 

358 10 ' 

o 44 

9 8 

19 36 

44 58 

47 16 
39 36 
28 42 

333 20 
69 6 



19 
18 


46 

58 


II 


12 


64 56 

56 6 


29 

58 


14 



325 


44 


46 
28 


8 
32 



30 18 
309 56 

57 26 

27 58 
48 18 

358 10 

o 44 

9 8 

19 36 



I. 



r. 



// 



13.5 

9 23.1 

13.8 

II. 6 

II. o 

15-5 

10 3.5 

4.0 

8.3 
3.5 
6.3 
3.7 
3.9 

6.0 

7.5 
6.6 

4.5 

5.4 
6.4 



3.6 
9.1 

5.6 

7.1 
9 29.1 

3.0 

0.6 

9 29.6 
9 12.9 

15.5 
12.0 

10.7 
II. 6 

10. 
13.2 

13.5 

14.5 
14.0 

II. 5 

9 13.8 

15. 1 

16.0 
13.0 
12.2 

13-5 
II. 5 
13.5 



II. 



// 

0.2 
5.4 

1.8 

4.0- 

25.5 
1.2 

28.0 

25.6 

11. 6 
12. 1 

9.7 
8.5 

10. o 

8.0 

11. 7 

II. o 
12.6 

10.5 

9.2 

10.6 

12.6 

135 

II. 9 

9-5 

10.2 

8.1 

II. 3 



10.8 
20.3 
12.4 

9.6 

8.3 
II. 8 

2.4 
1.7 

6.4 
i.o 
3.6 
0.9 
0.8 

2.5 

5.5 
3.2 

1.5 
1.9 
3.3 



III. 



If 

27.5 
2.9 

27.7 

0.0 

22.9 

28.3 
23,8 

23.4 
7.1 
7.9 
5.5 
6.0 

5.5 

6.5 
7.5 
6.5 

8.2 

7.4 
7.2 
8.4 

9.4 

9-5 

7.5 
5-0 

5.7 
6.1 

6.7 



6.3 
16.5 

8.5 

4.0 

3.4 

8.4 
26.2 

28.0 

0.0 
25.0 
28.0 
28.1 

25.9 

28.1 

29.9 
29.0 

28.0 

28.0 

28.9 



IV. 



// 



0.7 
6.1 



0.7 
3.2 

24.8 

0.3 
26.0 

27.0 
8.0 
9.0 
6.4 

6.5 
6.1 

7.0 

8.3 
8.0 

8.8 
8.0 

5.7 

8.5 
8.9 

10.5 

7-5 
6.2 

8.0 

7.0 

7.5 



TELESCOPE MICROMETER. 



7.7 
18.0 

9-7 

7.2 

5.5 
10.3 

27.7 
0.0 

2.7 

27.0 

0.5 
0.1 

28.1 

0.6 

2.5 
2.4 

29.4 

0.4 

0.5 



Rev. 



21 
27 

26 

25 
25 

» ■ 

28 

28 

29 
30 
29 
28 

27 

26 

28 

23 

29 
26 

29 
25 
31 

27 
29 
23 
32 

27 
24 



24 

28 

25 

24 
26 
22 

27 
26 

25 

27 
26 

25 
22 

26 

28 

24 

27 
24 
29 



I. 



415 
498 

325 



989 
649 

754 
073 



390 
040 

500 

215 

940 
065 
380 

605 
730 
085 
760 
215 

520 

275 
920 

420 

860 

655 



188 



610 



405 

365 
240 

• • 

030 

235 
125 

925 

580 

no 
850 



2. 



395 
316 



416 



995 
683 

782 
974 



365 

145 
420 

305 

925 

075 
495 

550 
710 
040 

730 
090 

375 
205 

985 
410 

785 
705 



750 
600 



058 
436 

515 
765 

550 

345 
015 
280 
140 

145 
000 

075 

350 

315 
800 



3. 



684 



890 



II 



315 



Barom. 



in. 

30.358 
30.058 



External 
Therm. 



60.8 

57.8 



Attached 
Therm. 



62.5 
63.5 



4. 



262 

278 



544 
814 

613 



941 
410 
205 

955 



165 

870 
885 
430 

440 
560 
830 
660 
040 

355 
085 

850 

265 

• • 

530 



602 
410 

463 



018 
240 
520 



450 
180 

945 
350 

075 

000 

890 
025 



205 
695 



248 
379 



608 
780 



015 
365 
150 
950 



205 

• • 

870 
300 

370 
570 
880 
580 
040 

300 
040 
830 
220 

■ ■ 

610 



368 



470 



400 
075 
950 

350 
020 

950 

835 
980 



140 
590 






/r 



2.9 

2.9 

2.9 
2.9 
2.9 
2.9 
2.9 

2.9 
2.6 
2.6 
2.6 
2.6 

2.5 

2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 

2.5 
2.5 
2.5 
2.5 
2.5 



II. 2 
II. 2 
II. 2 

IT.O 
II. O 
II. O 
II. O 
II. O 

II. O 
II. O 
II. O 
II. O 
II. O 

II. O 
II. O 
II. O 
II. O 
II. O 
II. O 



Apparent 
Zenith Dis- 
tance, South. 



26 16 36.9 

18 22 59.3 

37 57 19-9 
37 25 27.8 

44 41 31.9 
307 31 15.0 

49 20 47.4 

19 o 59.1 
65 18 52.6 
25 12 39.1 
58 3 0.8 

325 47 12.8 

46 II 28.5 

309 59 34.0 
51 49 15.0 

57 30 25,3 

48 20 51.0 

358 13 36.2 

o 47 2.2 

9 II 50.4 
19 38 26.2 

45 I 21.8 

47 18 57.2 
39 40 19.5 
28 44 9.3 

333 23 21.7 
69 10 6.5 



I 



a 



o 

ft] r* 
^^ 



19 49 35.0 
19 o 57.3 
II 15 20.4 

64 59 42.0 

56 9 15.8 

29 18 8.5 
58 3 0.5 

325 47 13.3 

46 II 28.0 
28 35 6.0 

30 21 21.4 

309 59 33. 8i 

57 30 24. 3j 

28 I 21. I 
48 20 50.1 

358 13 36.9 
o 47 2.2 

9 II 50.5 
19 38 24.8 



549 
546 



520 

480 



460 
525 



Refraction. 



+ 

-I- 
4- 
4- 



535 



540 



545 
552 



560 



443 
442 



443 
446 

446 
505 ~ 



4- 



520 



530 



+ 



-f 
540 - 



+ 



28.6 
19.3 

45.0 

44.1 

56.4 
14.2 

6.3 

19.6 

4.8 

27.2 

32.3 
39.3 



-f I 0.2 

— I 8.9 

-H I 13.5 

4- I 30.6 



4- I 

+ 
4- 
+ 

4- 
4- I 

4- 
4- 

4- 2 



4.9 
1.8 
0.8 
9.4 
20.6 

58.0 

2.8 

48.1 
31.8 

29.1 

31.7 



20.4 

19.5 

II. 3 

2 0.8 

I 24.3 

31.8 

I 31.8 

39.1 



I 0.0 

4- 31.4 

4- 33.7 

- I 8.6 

4- I 30.4 



30.7 

5.0 
I.I 

0.8 

9-4 
20.7 



Apparent N. 
P. Distance. 



No. 



For summary of the tlemtnts of reduction see fage 3. 



35 



// 



77 23 26.7 

69 29 39.8 

89 4 26.1 
88 32 33.1 

95 48 49.5 
358 36 22.0 
100 28 14.9 

70 7 39.9 
116 27 18.6 

76 19 27.5 

109 10 54.3 

16 50 54-7 

97 18 49-9 

I 4 46.3 
102 56 49.7 

108 38 17. 1 

99 28 17. I 
29 19 55.6 
51 53 24.2 
60 18 21.0 
70 45 8.0 

96 8 41.0 

98 26 21.2 

90 47 28.8 

79 51 2.3 

24 29 13.8 

120 18 59.4 



0} . 

P H 

M C 

s o 

So 



4- 1.0 

4- 0.9 

- 5.4 

- 5.3 

- 4.7 
4- 0.5 

- 2.6 



+ 



l.i 
0.4 

0.5 
1.2 

2.4 



- 0.5 

- 1-4 

- 0.3 
4- 0.6 

- 0.9 
~ 0.7 

- 1.3 

- 1.6 

4- 1.3 

- 0.9 

- 0.8 
0.0 

- I.I 

- 2.8 
0.0 



70 56 16.6 — 1.6 

70 7 38.0 — I.I 

62 21 52.9 — 2.5 

116 8 4.0 — 3.9 
107 17 1.3 

80 25 1.5 4-12.9 

109 10 53.5 — 2.0 



16 52 55.4 

97 18 49-2 

79 41 58.6 

81 28 16.3 

I 4 46.4 

108 38 15.9 



— 2.5 

— 1.2 

— 2.1 

— 3.1 

— 0.9 

0.7 



79 8 14.0 




0.6 


99 28 16.3 


— 


1.7 


49 19 57.0 


4- 


1.0 


51 53 24.2 


— 


0.9 


60 28 21. I 


— 


1.2 


70 45 6.7 


4- 


0.2 



MOON'S— 



Parallax. 



/ // 
- 46 47.5 



Semi-diam. 

I II 
4- 15 25.9 



94 



OBSERVATIONS WITH THB TRANSIT CIRCLE. 



D TE. 



1868. 
Sept. 21 



25 
28 



29 



I 



30 



B 



I 

2 



4 

5 

6 

7 
8 

9 
10 

II 

12 

13 

14 

15 
16 

17 
18 

19 
20 

21 
22 

23 
24 

25 

26 

27 

28 

29 
30 

31 

32 
33 
34 
35 
36 

37 
38 

39 
40 

41 

42 

43 

44 

45 
46 

47 
48 



OBJECT. 



P Aquarit 
f Aquarii 



Sun, N. 



Sun, S. . 
Sun II, N. . 
Polaris, S. P. 
Mercury, (center) 
Bootis . . 



e Bootis . 
6 Aquilse . 
K Aquilae . 
Aquil2B 



X U 



rsas Minor! s 



^ Aquarii 

«J Ursae Majoris, 

Moon I, S. 

Venus II, S. 
e Leonis . 

a Leonis . 
y Leonis . 

Sun I, N. . 

Polaris, S. P. 
e Bootis . . 

Venus II, S. 
a Leonis . 
y* Leonis . 

Sun I, S. . 

Sun II . 

Polaris, S. P. 
a Bootis . . 
e Bootis . . 

d Ursae Minoris 

51 Cephei, S. P. 

<j Sagittarii . 

a Aquilae, (R.) 

e Draconis . 



S.P 



a« Capricorni 

TT Capricorni 

e Delphini . 

ff Ursae Majoris, 

a Cephei . 

fi Capricorni 
a Aquarii 
t Piscium 

Moon I, N. 

Jupiter I, N. 

Jupiter II, S. 
e Piscium 



S.P 



t 

10 

o 



H. 
H. 



F. 
F. 
F. 
F. 
F. 



F. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
T. 
T. 

T. 
T. 

T. 
T. 
T. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 
F. 






SECONDS OF TRANSITS OVER WIRES. 



I. 



F. 
F. 
F. 
F. 
F. 






F. 
F. 
F. 
F. 
F. 

F. 
F. 



21.223.825.0 



27.930.4 



IL 



III. 



IV. 



V. 



31.8 



38.140.442.1 



32.6:35.136.7 
29.432. i;33-6 



31.433.3 
38.340.5 



VI. 



48.4 



35-4 
42.3 



VIL 



41.5 
48.4 



48.035.0 
50.5'52.6 



43.044.946.8 
39.9';42.o;44.ol 



40. 843. 545. 051. 3153.4155. 3 
33. 023. on. 058.0 



14.4 17. 1 

2.258.5 

5.3 8.1 

0.9 3-5 
i.o 3.6 



0.9 
21.3 



18.7 

47.9 
9.5 
5.1 
5.2 



3.5 5.0 
24.025.7 



24.8 

42.3 
16.0 

II. 4 

12.0 



II. 2 
32.1 



35.938.540.0 

. . 119.01 . . 

51.854.7I56.4 
4.7 7.2. 8.7 
1.0 3.3 4.8 

21. 123. 825. 5 



46.248.350.4 

32.0 

3.4 5.8 8.0 

i5.o!i7.oi9.3 

II.l|l3.2I5.2 

32.034.1,36.2 



13. 015. 417. 1 

22.024.326.0 

. . 140. o 

17.720.522.0 



18. c 
54-6 
10.2 12.4 



25.7 
27.4 

36.4 
9.6 

54.0 



28.229.8 



43.1 

52.5 



30.2 
39.0 



31.8 
40.4 



3.0158.8 
0.0 3.1 



45.3 
55.1 



14. 917. 4 



28.6 



48.6 



31. 1 



51. 1 



46.8 
56.6 

18.5 
32.4 

40.0 

52.5 



26.9 

37.1 
17.8 

13.5 
14.3 



15.7 
16.5 



43.0 
50.2 



16.4 
12.0 

59-4 



VIII 



IX. 



45.7 
52.6 



18.3 
0.6 



15. 1 
53.0 
50.0 

1.5 
46.0 

35.0 
26.5 



20.8 



3.3 



CORRECTIONS. 



Mean wire. 



ni. s. 

24 33.37 
30 40.27 



Inst. 



Clock 
apparent, 



29.0 

31.5 

20.0I26.4 
22.0 
23.2 



13. 415. 5 
34.436.6 



23.025.2 
31.934.0 
14.049.0 
28.630.8 



35.5 



51.5 



56. 7| . . 
14.316.5 



36.1 



27.3 
36.0 

28.0 

32.8 



41.0 
10. o 

18 .6 



38.2 



38.140.3 
46.848.9 



t6.i 



20.4 



53.055.0 
2.8 4.8 



25.3 



27.6 



42.044.1 



40.1 
42.6 
51.0 

• • 

24.7 



57.o| 

6.7 

29.5 



46.1 



17. 1 19.5 
54.6157.6 
51. 854. 1 



3.2 

• • 

36.8 
15.7 



5.7 



21.8 
43.1 

• • 

10. o 

14. 916. 7 
27.1 



39.3 
II. 6 

28.2J30.8 

23.6126.1 

25.027.7 

23.326.0 
44.847.5 



25.5 
21.6 

43.0 

33.2 

42.0 

1.0 

39.4 



19.6 
30.1 
23.325.8 

44.5I47.1 

35.137.4 
43.845.9 



41.043.7 
14.8 16.4I19.2 



22 

II 58.10 
38 50.60 



s. 

0.42 
o.43'4- 6.13 



s. 
+ 6.14 



20.40— 0.12 

- 5.57 

— 0.13 



51.0 



17.059.0 



22.524.3 



46.648.1 50.3 



26.7 



49.0 
57.2 

• • 

38.1 



3.2 
13.0 

35.9 
49.1 

48.1 



50.653.2 
58.5 1.2 



41.3 



4.8 



47.4 



7.3 



14. 417. 1 

37.540.1 
50.1 52.9 



39 5.92 
18 44.92 

29 41.88 

39 53.30 
56 10.62 

45 26.89 

58 37.03 
32 18.01 

30 13.53 

38 14.28. 

I 13.40 
12 34.39 

23 48.24 

11 55.97 

39 5.70 
34 17.18 

I 13.26 

12 34.14 

27 25.19 

29 33.99 
II 50.10 

9 30.72 
39 5.49 

14 32.60 
37 52.80 

46 59.06 

44 14.39 



— 0.07 

— O.II 

— 0.13 

— o.io 
+ 6.76 



7.52 
7.60 

7.59 
7.78 



0.I3-+- 7.54 

0.23 
0.13 
0.13 

O.II 



10 38.12 
19 40.36 
26 48.82 

58 37.41 
15 20.57 



58 55.06 
33 4.78 

7 27.41 
36 40.70 

36 44.08 
56 0.83 



— 0.13 

— 0.12 

— 0.16 

— 5.88 

— 0.10 

— 0.17 

— 0.18 

— 0.15 

— 0.22 

— 0.22 

— 7.17 

— 0.16 

— 0.13 

4- 2.61 

— 3.75 

— 0.27 

— 0.02 



— 0.24 

— 0.26 

— 0.18 

— 0.67 
-h 0.09 



-f 7.73 

+ 7.73 
-H 7.74 



+ 7.76 

• • 

-I- 7.94 
+ 8.03 



4- 8.00 
-h 7.99 



+ 7.97 



0.21 
0.20 
0.22 
0.21 

0.21 
0.19 






8.06 
8.00 
7.90 



■^ 7.94 
-h 8.04 



-H 7.99 



Clock 
adopted. 



s. 
+ 6.16 
+ 6.16 









+ 



+ 
-f- 






.50 
.51 
.51 



-h 



+ 7 

-h 8 

-h 8 

-h 8 



52 
62 

63 
63 
63 

64 
64 
66 

72 
73 

73 
73 

75 
76 
77 
93 
94 
94 

95 

95 
96 

97 
97 

99 
00 

00 

00 



4- 



8.01 
8.01 
8.01 
8.01 
8.01 



-h 8.02 

+ 8.03 

+ 8.03 

-h 8.04 

-h 8.04 

-+- 8.04 



Apparent R. 
Ascension. 



Pi 

c o 

— O 



h. ni. s. s. 

21 24 39.11 -f- 0.02 
21 30 46.00 -h o.oi 



12 22 27.78—64.27 
I 12 0.04'+ 4.61 

13.38 57.98+ 0.03 

... J 



14 39 13.37- 0.01 1 

19 18 52.43'-+- 0.03 

19 29 49.38+ 0.04| 
19 40 0.83 — o.l4i 

19 56 25.01 + 4.SS 

20 45 34.40-1- 0.12 

8 58 44.44'— 0.09 
22 32 25.544-62.20 

9 30 21.12— O.SO 

9 38 21.90— O.OI 



O I 2I.OOI— O.OI 

12 42.00'+ O.OI 

2 23 55.85 H-64. 31 

1 II 57.85 + 2.29 

4 39 13.37; 0.00 

9 34 24.94- O.TQ 

O I 21.02 — O.OI. 

O 12 41.93— 0.07 



2 
2 
I 
4 

4 



27 32.92 . . 
29 41.72 . . 
II 50.89— 4.82 

9 38.53— 0.02 

39 13.33- 0.03 



0.34 



8 14 43.20 

6 37 57.05+ 1. 13 

8 47 6.79+ O.OI 

9 44 22.37- 0.13 



20 o 45.S9— 0.05 

20 19 48.11 + O.OI 

20 26 56.65"+ 0.12 

8 58 44.75+ 0.10; 

21 15 28.67— O.II 



21 59 2.87+ 0.07 

23 33 I2.6ij— 0.03 
o 7 35.22+61.92 
o 36 48.53' . . 



0.00 



o 36 51.91 
o 56 8.68; 



8. Seems one rev. wrong. 
16. Uncertain which wires ; probably IV-VII. 
32. Observed over wires Cs and D. 



OBSEBVATIOMS WITH THE TBAN6IT CIRCLE. 



95 






I 

2 



Circle 
Division. 



i 4 

5 
' 6 

I 7 
, 8 



' II 

12 

' 13 

14 

i6 

17 
i8 

19 

20 

21 
22 

23 

I 24 
, 25 

' 26 

27 

28 

29 
30 
31 

32 

33 

I 34 

j 35 

36 

I 
37 
38 

39 

I 40 

41 

, 42 

43 

44 

I 45 
. 46 

■ 47 

48 



44 58 

47 16 

39 42 

41 24 

40 52 
307 28 

50 38 
18 58 

II 12 

35 58 
46 8 
28 32 

309 56 

48 18 
286 34 

49 54 

25 24 
14 26 

26 12 
18 20 

41 16 



MICROSCOPE MICROMS. 



II 

25 
26 

18 



12 

38 
12 

20 



42 10 

307 28 

18 58 

II 12 



312 
306 

65 



14 
6 

16 



328 54 

51 46 
57 26 
27 58 

286 34 

336 48 

52 58 
39 46 
33 54 
41 34 
36-38 

36 38 
31 18 



r. 



// 



2.9 
4.4 

10 28.6 

10 15.2 

14.4 

11 6.1 

10 12.7 
16.2 

10 17.9 
10 4.5 

II. 7 

10.7 

6.0 

10. o 
9.8 

10 13.4 
13.6 
17.8 

12.0 
10.5 

11 25.1 

13-6 
10 15. I 
10 23.5 
10 13.2 

10 12.6 

10 14.3 

11 3.7 

8.4 

2.4 

4.0 

14.4 

8 17.9 

8.9 
9.9 

II-5 
5.0 

3.1 

3.2 

7.1 

10.9 

lo 28.3 

10 11.4 

10 II. 4 
8.2 



II. 



It 

0.3 
2.0 

27.0 

II. 8 
11.5 

4.9 
10.9 

12.9 

14.7 

3.3 
II. 7 
10. 1 

5.0 

10. o 
9.2 
12.0 
II. 4 
15.5 

9-3 
7.6 

24.5 

12.0 

12.5 
20.9 

10. o 
10.6 

13.0 

0.3 
4.6 

29.9 

2.3 
14.2 

14.4 

7.6 
7.3 

8.3 
2.9 

I.I 

29.4 
5.6 
9.1 

25.1 
10. o 

10. o 

5.4 



III. 



24.8 

27.4 
28.8 

6.1 

6.1 

29.7 

4.4 
5-5 

9.1 

26.0 

4.1 

3.0 

0.5 

2.5 
4.0 
4.8 

5.4 
10.5 

3.6 
2.5 

15.5 

5.6 

7.7 
17.0 

5.9 
5.0 

9.7 
26.1 

1.4 

26.0 

28.9 

9.0 

12.7 

0.9 

1.5 
2.9 

29.2 

26.6 

23.8 
29.1 

3.1 
19.2 

4.5 

4.5 
27.4 



IV. 



n 

27.5 
29.0 

24.8 
8.4 

6.0 

2.3 

5.7 
9.6 

10. 1 

27.5 
5.2 

3.5 
1.5 

3.9 
4.8 

5.6 

7.3 
II. 9 

5-5 
4.0 

17.5 

7.8 

8.5 
18.6 

8.2 

6.6 

10.5 

28.6 

1.2 

29.1 
0.2 

11. 2 

13.9 

3.5 
6.2 

5.9 
2.7 

28.6 

27.0 
3.2 
6.1 

21.6 

7.4 

7.4 
2.5 



TELESCOPE MICROMETER. 



Rev. 



26 
27 

23 

19 
23 
24 
25 
27 

24 
26 

24 
26 

25 

27 
29 

29 

25 

19 

20 
27 

31 

25 
27 
19 
27 

26 

25 
25 
25 

20 

27 
27 

27 

26 
21 

25 
29 

23 

22 

23 
23 
34 
25 

21 
23 



I. 



2. 



360 
800 



356 
876 



055 
960 

680 
325 



385 

680 
750 



430 
892 

304 



754 
641 



636 



348 

• • 

722 
691 
982 

200 
218 
122 

• • 

287 



232 



155 
740 



531 



309 
676 



988 
040 

645 
340 

690 
525 

075 
776 



948 
453 



622 

373 
940 

141 
136 

773 
620 



952 
638 



252 

478 
653 
725 
950 

272 

117 
170 

• • 

125 



330 



3. 



292 

584 
196 



340 



205 



528 



720 



137 
648 



004 



4. 



115 
680 



503 

275 
121 

672 

780 
960 
960 

505 
220 

590 



170 
730 



845 
320 

490 

528 
162 
712 
918 



663 

590 
650 

129 

655 
020 



012 
422 
472 



257 

855 
968 

146 



759 
128 



215 
655 



482 
181 
103 

579 

040 
170 

915 

455 
260 



120 
712 

860 



132 

975 
967 



690 

491 

784 

165 

970 

548 

092 

324 

488 



882 

095 
910 

075 
405 



620 
1 10 



o o 



II. o 
II. o 

10.2 

II. O 
II. O 
II. O 
II. O 
II. O 

II. O 
II. o 
II. o 
II. o 
II. o 

II. o 
II. o 
II. o 
13. 
12.0 

12.0 
12.0 

12.0 

12.0 

12.5 
12.5 
12.5 

12.5 

12.5 
12.5 
12.5 

I3P 
13.0 
13.0 

13.0 

13.0 
13.0 

130 
13.0 

13-0 
13.0 

I3-0 
13.0 

13.0 
13.0 

130 
13.0 



Apparent 
Zenith Dis- 
tance, South. 



S 

C/3 



// 



45 I 21.9 . . 
47 18 570 540 

39 45 37.3 403 



41 27 51.3 

40 55 51.3 
307 31 18.0 

50 41 27.3 
19 o 47.1 



II 

36 

46 

28 

309 



15 
I 

II 

35 

59 



27.0 
23.11 

31.5. 
8.61 

31.7 



48 20 52.3 
286 36 21.9 

49 56 28.9 
25 27 19.9 
14 30 46.0 



399 

• • 

358 
340 

335 



450 
440 
458 
533 
530 



Refraction, 



26 16 35.5 526 

18 22 57.8 520 

41 17 9-4 477 

II 15 21.9 432 

25 40 55.2 555 

26 16 39.1 542 

18 22 59.8 535 

42 13 15.9 466 

307 21 17.7 437 

19 I 2.4 426 
II 15 25.2 

312 18 42.1 463 

306 8 59.3 

65 18 57.3 482 

328 57 48.4 497 

51 49 18.0 504 

57 30 29.4 

28 I 25.3 

286 36 26.6 516 
336 51 59-1 

53 2 25.5 

39 50 7.7 520 

33 58 3.3 528 

41 35 i.o 

36 41 30.9 526 

36 42 22.5 
31 42 5-5 



// 



■4- 



57.9 
2.7 



+ 46.7 



445 - 






4- 






I 

3 
I 



49-5 
48.6 

12.2 

7.8 

19. 1 

11. 

41.0 

58.8 
30.8 

7.4 

3.7 

7.3 

7.5 
27.8 

15.0 

28.5 

19. 1 



-+- 49-7 



4- 
+ 
4- 



II. 2 
28.0 
28.6 
19.2 



4- 516 

- 1 13.5 
4- 194 



4- 



II. 2 



— I 2.4 

- I 17.9 
4- 2 3.6 

- 34.5 

4- I 12.9 

4- I 29.9 

4- 30.6 

- 3 10.5 

— 24.6 



-h I 

-h 
-h 
4- 



-h 



16.4 
48.1 

38.9 
51.2 

43.0 

43 -o 
35.2 



Apparent N. 
P. Distance. 



0) 



(A 



P a 
c o 



o / // 

96 8 41.0 

98 26 20.9 

90 52 45.2 

92 35 2.0 

92 3 I.I 

358 36 27.0 

loi 48 56.3 

70 7 27.4 

62 21 59.2 
67 8 25.3 

97 18 51.5 
79 42 0.6 

I 4 45.5 

99 28 17.2 

337 39 35-8 
loi 3 57.6 

76 34 8.9 
65 37 22.2 

77 23 25.2 
69 29 38.1 

92 24 20.3 

62 21 54.3 

76 47 44.4 

77 22 28.9 

69 29 40.2 

93 20 28.7 

358 36 25.4 

70 7 43.0 
62 21 57.6 

3 24 0.9 
357 14 2.6 
116 27 22.1 

20 3 35 I 

102 56 52.1 
108 38 20.5 

79 8 17. I 
337 39 37.3 

27 57 55.7 

104 10 3.1 
90 57 17.0 

85 5 3.4 
92 42 13.4 
87 48 35-1 

87 49 26.7 
82 46 1.9 



// 



— 


0. 


9 


— 


I. 


I 




5 


7 


— 


5 


.8 


— 


5 


7 


4- 


2 


.0 




5 


.6 


— 


12 


.7 



-+- 2.7 
- 1.3 

4- 1.0 
0.0 

- 0.6 

- 1.0 

- 2.0 

- 5-2! 
4- 1.4 

4- 0.6 

- 2.1 

- 5.8 

- 2.3 

- 5.2 
4- 2.2 

- 0.1 

- 5.9 

- 0.3 
4- 2.6 
4- 0.8 

4-45-2 
4-0.1 

4- 2.8 

- 1.4 



4- 



4- 



4- 



1.7 
3-4 
2.9 
0.2 
0.6 

2.3 
2.1 

2.5 
1.3 



- 1.3 

4- 1.8 



No. 



Barom. 



in. 



External 
Thenn. 



Attached 
Therm. 



For summary of the elements of reduction see page 3. 



No. 



16 

45 



MOON'S— 



Parallax. 



It 



41 22.4 
36 12.9 



Semi-diam. 



// 



— 14 48.9 
+ 14 58.3 



96 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
Sept. 30 



Oct. I 



B ' 



OBJECT. 



1 Neptune 

2 Polaris . 

3 Venus II, S. 

4 a Leonis . 

5 y» Leonis . 

6 Sun I, S. 

7 Sun II, N. 

8 Polaris, S. P. . 

9 Mercury, (center) 

10 a Bootis . . 

11 a Cygni, (R.) 

12 /x Aquarii 

13 (T UrsaeMajoris, S.P 

14 a Cephei . 

15 /3 Cephei, (R.) 

16 e Pegasi . 

17 fi Capricorn! 

18 79 Draconis . 

19 a Aquarii 

20 32 Ursas MajorisS. P 



21 t Cephei, (R.) 

22 a Pegasi, (R.) 

23 o Cephei . 

24 I Piscium 

25 Jupiter I, N. 

26 Jupiter II, S. 

27 Moon II, S. 

28 Neptune . 

29 Polaris . 

30 6 Ceti . . . 

31 6 UrssB Minoris 

32 I Aquilae, (R.) 

33 ^ Sagittarii . 

34 a Aquilx, (R.) 

35 e Draconis . 

36 T Aquilae 

37 a« Capricorn! 

38 K Cephei . 

39 IT Capricorni 

40 a Cygni, (R.). 

41 /3 Aquarii 

42 /3 Cephei . 

43 II Cephei . 

44 fi Capricorni . 

45 79 Draconis . 

46 Aquarii 

47 51 Cephei, S. P. 

48 50 Draconis . 

49 C Aquilae . 

50 6 Draconis, (R.) 



t 

Si 

o 



F. 
F. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

N. 
N. 
N. 
N. 
N. 

N. 
N. 
N. 
N. 

N. 

N. 

N. 
N. 
N. 
N. 
N. 

N. 
N. 
N. 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



J3 



N. 



39.6 

• • 

9.2 

0.7 
21.0 

50.1 
58.9 

• • 

44.7 
17.7 



II. 



in. 



IV. 



V. 



VLiVII, 



42. 043. 449. 651. 953. 7: 0.0 

40.o,59.oJ2i.o 



VIII: IX. 



1.7 4.1 



Mean wire.' Inst. 



II. 9 13. 3, 19. 921.9 

3.3I 4.8jii.i 13. 1 

23.925.4.32.034.2 



I 



52.7 
1-5 



47.5 



54 

3 
48 
48 



3 
I 

o 



•31 o. 

.o| 9 

.024. 
.955.5157.5 



2.5 
II. 2 

58.0 



23.9]30.2 3i 
15. 121. 5 
36.3!43.o 



20.321.8 



4 
1.3 
3 
3 
3 

3 
2 

2 

3 
2 

3 
3 
3 

3 

2 

3 



32.635.8 



14. 1 

9.7 
54.6 
15.8 

24.5 
48.1 
27.9 

42.7 
46.5 

25.7 
53.3 

• • 

52.4 

58.8 



II. 9 

33.4 
2.0 

8.1 



16.7 

2.7 
o.i 

23.5 



38 
18 

58 

3 

27 



28.5 



.147. 
.1.24. 

.742. 



30.6 



4. 

13. 

38. 

59- 
32. 



1150.052. 
3,26.5.28. 



.1 
.7 



27.1 28.4 
50.652.2 



37.0 
45.1 
40.3 

31.9 
56.1 

• • 

55.0 
1.2 



14.5 
35.8 

■ • 

10.7 



16. 
45. 



37.4 
20.6 

51.9 



34.736.8 

58. 5I 0.6 



55.9 3.810.4 



32. 

24. 

57. 



7:10.7 

3,19.5 
olii.o 

5i 5.9 

7 39-3 

I 
6| 1.3 

534.7 
016.4 

38.1 
15.4 



38.945.1 



2.6 



9.1 



46.8 
36.7 

35.4 

57.7 
0.0 

56.4 
2.7 



52.955.0 



21.7 

50.4 
4.1 
5.2 
2.6 



42.5 

• • 

1-7 
53.2 

22.9 

25.3 

• « 

27.1 
32.3 



10.3 12 

16. I 

37.3 
55.0 



4 
22.2 

43.4 
17.0 



16.8 

55.1 
6.1 

9.9 
4.7 



17.1,24.3 

57.1 3.0 
II. 657. 1 



0.1 

8.1 

15.6 

6.7 



12.2 



18.5 



45-1 

• • 

4.2 
1.2 

25.5 
27.9 

• • 

29.8 

35.8 



. . 56.0 
46.6 . . 

. . 3-1 
5.7 12.0 



5.5 



23.3 



26.933.1 
29.335.7 



31.2 



37.7 



18. 521. 1 



16.5 
17.1 

47.7 

• • 

34.1 



23.9 
24.6 

50.2 

• • 

36.7 



37.846.4 
22.628.8 



28.1 
29.6 



46.3 
48.1 



51.9158.2 
55.71 2.6 
38.142.3 



17.5 



36.5 



14.5 
24.5 
45.6 
38.0 
20.6 

31.5 

• « 

7.6 
14. 1 

29.7 



15. 1 

• • 

20.9 

13. 1 
19.2 



37.8 

■ • 

39-9 
49-5 



16.3,18.5 
26.532.8 

47.553.7 
5.0; . . 

22.628.8 



39-7 



4.9 

■ • 

9.5 
16.0 

35.153.5 



23 

44. 

12. 
21. 

• 

7. 
41 

3 
36. 
12. 

41. 
20. 



834.4 
Oi25.7 

47.3 

114. 9 
123.7 



6 10.2 
043.7 

7.1 
3.38.9 

oj 5-1 

5!46.7 
227.4 



46.6:49.3 
10.6 13.2 

43.7-51.8 
4.61 7.2 

53.5'47.3 



18.7 



14.5 
20.7 



34.2 



25.0 



17. 1 
23.1 



37.0 



55.357.8 
30.3,32.9 



12.3,26.039.7 



22.2 



35.137.243.4 



23.8 
57.6 



26.2 
5.6 



47.8 



39.946.2 
28.447.7:54.0 
42. 1 48.6 50. 1 



45.147.5 



52.4 



0.8 



30.932.8:39.0 
52.358.1J16.0 
54.1 0.1 19. 1 
0.3 2.4| 8.7 
9.516.123.4 
44.446.448.4 

53.012.028.7 



3.0 



50.2 

5.8 

52.8 

6.6 



40.643.1 

20.4J28.I 

23.731.2 
I0.3II2.7 



50.3 



Clock 
appar'nt. 



Clock 
adopted. 



s. 



m. s. ; s. 
I 51.78 — 0.20 

11 36.67 -h 6.68 
38 21.831— 0.27 

I 13.14;— o.27i-h 8.17 '4- 8.08 

12 34.18'— 0.23!-!- 8.10 !+ 8.08 



s. 
4- 8.04 
-h 8.04 
1-4- 8.08 



31 2.48 — 0.31 . . 

33 11.26]— 0.31 . . 

II 59. 62I — 10.15 • • 

53 57.48;- 0.35 . . 

9 30.62 — 0.23-1- 8.17 
I 

36 49.79-1- 0.31 4- 8.07 

45 26.46|— 0.334- 8.12 
58 37. 42;- 0.96 

15 20.66;4- o.iol . . 

26 5i.7i'4- 1.03 . . 

37 36.82 — 0.27 4- 8.14 

46 o.6ii— 0.35 4- 8.15 



51 10.21 
58 54.93 



4-0.46 

— 0.304- 8.14 



8 16. 83!— o.Sy 

11 
I 

44 55.271+ 0.80; 
58 6.oS|4- o.oi 
13 10.3214- 0.26' 



33 4.72 
36 10.95 



36 14.40 

57 24.41 

I 45 53 



- 0.28 4- 8.18 

— 0.29 



4- 8. 

■4- 8. 

4- 8. 

4- 8. 

'4- 8. 

I 

4- 8. 

4- 8. 

4- 8. 

4- 8. 

'4- 8. 

t 

'+ 8. 

'4- 8. 

4- 8. 

4- 8. 

'4- 8. 

I 

4- 8. 

,-H 8. 
8. 
8. 



i + 
4- 

4- 



o 
o 
I 
I 

2 



— 0.29 

— 0.29 

— 0.28 



. . 4- 
. . 4- 
II 40.34I4- 9.46 . '4- 

17 20.52— 0.33 4-8.14 4- 



14 30.90 



-H 2.77 



8 

8 

8 

9 

9 
8.20 

8.20 
8.20 
8.20 
8.20 
8.20 



4- 8.44 
27 54.51I— O.II . . [4- 8.44 
46 58.61— 0.334- 8.44 14- 8.44 



44 13.99 
48 29.41 



— 0.01 
4- 0.22 



57 35.19- 
10 37.79|- 
13 9.86.4- 
19 39.921- 
36 49.404- 

24 30.82 — 

26 52.i9|-^ 
39 54.184- 
46 0.27 
51 9.464- 
9 46.39 



37 53.57 



0.24 4- 
0.294- 
0.51 

0.33 + 
0.27 

I 

0.28 4- 

0.21 

0.25 

0.304- 

0.32 

0.28,4- 



8.51 
8.41 

• • 

8.48 



8.43 
8.43 

• • 

8.51 



- 4.72 



Apparent R. 
Ascension. 



+ 8.45 

+ 8.45 

4- 8.45 

4- 8.46 

4- 8.46 

4- 8.46 

4- 8.46 

+ 8.47 

. 4- 8.47 

. 4- 8.47 

- + 8.47 

+ 8.47 

-h 8.47 



§5 



'J 

it 

u 
u 



0^ ■^^ 



m. s. 
I 59 62 

II 51.39 
38 29.64 

I 20.95 



h. 

I 
I 

9 
10 

10 12 42.03 



4.41 
0.7S 

o.io 
0.00 



12 

12 

I 

13 
14 



31 

33 
II 

54 

9 



20 36 

20 45 
8 58 

21 15 
21 27 

21 37 
21 46 
21 51 

21 59 
10 8 

22 45 

22 58 

23 13 

23 33 
o 36 



10.27 
19.05 

57.56 

5.24 

38.51 

58.27 
34.30 
44.63 
28.93 
0.91 

44.72; 

8.43 
18.84' 

2.80 

24.12' 

4.25, 
14.27, 

18.77 
12.63 

18.86 



-I- 



4- 



1.6? 

0.04 
0.04 

0.10 
0.07 
0.00 
o.i5 

0.30 



I 



4- O.OI 

— 0.0^ 
4- 0.48 
4- 0.02 
4- 0.13 

I 
4- 0.34' 

4- O. iSi 

4- 0.56 

— O.OI 



O 
O 

I 

I 
I 



36 

57 

I 

II 
17 



22.31 . . 

32.32 —62.3^1 

53.45 . • 
58.00 

28.39 



4- 2.00 
4- 0.06 



18 14 42.11 — 0.65 

18 28 3.144- O.II 

18 47 6.72 — 0.02 

19 44 22.43!— 0,03 
19 48 38.08.4- 0.2S 

19 57 43.40- 0.15 

20 10 45.96J4- 0.05 
20 13 18.83I— 0.34 
20 19 48.05.— 0.02 
20 36 58.13— 0.02 



21 24 39.01 4- 0.04 
21 27 0.8714- 0.31 
21 40 2.90— 0.06 

21 46 8.44;— O.OI 

21 51 18.25 — 0.05 

22 9 54.58— o.o«; 



4-10. 01 6 37 58.66 



4- 0.07 



I 



15.18.23.27.38.42.43.50. Bisections at sets Band D. 

33. R. A. over wires C^, D, VI, and VII. 



OB6EBVATION8 WITH THE TRANSIT CIRCLE. 



97 



B 



Circle 
Division. 



I 

2 

3 
4 
5 

6 

7 
8 

9 

10 

II 

12 

13 
14 
15 

i6 

17 
i8 

19 

20 

21 
22 
23 

24 
25 

26 

27 
28 

29 

30 

31 
32 

33 
34 
35 

36 
37 
38 

39 I 

40 1 

41 ' 
42 
43 
4* 

46' 

47 ; 
48 1 

49 1 
50 



No. 



34 2 

25 52 

26 12 

18 20 

42 34 
42 2 

• • 

52 4 
18 58 

185 52 

48 18 

286 34 

336 48 

211* 2 

29 34 

52 58 

325 46 

39 46 
284 40 

206 32 

155 34 
331 28 

33 54 
36 40 

36 40 

37 44 

34 2 

47 40 

312 14 

132 44 

65 16 

149 34 

328 54 

31 54 

51 46 

321 32 

57 28 

185 52 



328 52 
328 8 

53 o 
325 46 

47 16 

306 6 

323 34 
25 10 

208 28 



MICROSCOPE MICROMS. 



I. 



r. 



tt 



10 



10 



8.4 

"5 
10. 1 

3.6 

3.9 
II. 3 



9-3 

II. 8 

8.4 

13.0 

8.0 

9-3 
4.2 

9.4 
II. 4 
10.3 
10.5 

7.5 

5.3 
7.2 

10.5 

8.4 

8.3 

8.3 
20.3 

9.4 
9.6 

7.0 

7.9 
7.2 

5-9 

7.5 

8.4 
10.6 
12.0 
10.3 

6.2 



8.0 
8.8 

8.5 
8.6 

9.2 

6.6 

8.1 

II. o 

3.0 



II. 



// 



7.0 

9.0 

5.5 
0.8 

1.4 
9.0 



7.1 
9.3 

9.0 
12.0 
6.6 
7.5 
6.7 

7.4 

9.3 

8.3 
8.9 

6.4 

6.4 

5.6 
8.6 

7.0 

5.3 

5-3 
18.4 

7.3 

8.7 

5.3 
6.7 
6.0 

5-1 
5.4 

6.6 
9.2 
9.9 

8.8 
6.6 



5.5 
6.4 

6.2 

6.8 

7.4 

5.4 
6.8 

9.T 

5.0 



III. 



n 



2.4 

4.0 

0.8 

26.8 

26.0 
2.9 



I.O 

4.5 

3.8 

6.0 
2.6 

3.5 
t.7 

1.3 

3.4 

5.3 
3.0 

2.8 

1.8 

0.5 

5.3 

1.3 

29.3 

29.3 

13.0 

0.6 

1.8 

1.6 
29.7 
29.6 

29.5 
1.3 

29.7 
3.2 
5.8 
2.1 
1.4 



1.8 
2.6 

0.3 
2.5 
I.I 

1. 1 

2.3 

3.0 

29.7 



IV. 



It 



3.3 

6.0 

3.1 
27.8 

28.6 
5.9 



2.9 
7.0 

2.7 
8.0 

4.6 

3.0 

1.4 

3.8 
5.0 

7.4 

4.5 
4.4 

1.0 

0.5 
5.7 
2.6 
2.0 

2.0 

14.5 
3.0 

4.0 

2.2 
0.2 

2.8 
0.0 
3.5 

2.4 
5.5 
7.9 
4.5 
0.2 



4.0 
4.6 
2.6 
4.9 
3-2 

2.7 

4.1 

4.7 
28.0 



TELESCOPE MICROMETER. 



Rev. 



27 
20 

27 

24 
24 



21 

27 

25 
27 
29 
23 
26 

29 
21 

26 

22 

27 

20 

27 

29 

23 
21 

17 
15 
23 

22 

23 

25 

27 
21 

24 

22 
26 
26 

29 
25 



27 

25 

29 
26 

28 

27 
26 

28 
23 



I. 



470 



378 



980 



850 



142 



290 

• • 

620 



444 

982 



964 
278 



590 
080 



2. 



445 



QIO 
850 

360 



410 

177 

803 
460 



510 



498 
540 
390 
842 
861 

778 
800 
350 
400 
176 



240 



440 



264 

• • 

538 
150 



428 
985 



925 



575 

• a 

522 



3. 



380 



785 
052 



245 



212 

793 
653 

575 

560 
435 

066 



4. 



273 

370 
870 
670 



340 
950 

750 
370 

284 

453 
658 

400 
600 
460 
868 
760 

610 
650 
361 
350 



460 

515 
728 

343 



010 
650 
202 



432 
046 

442 
348 
910 



924 

• t 

560 
620 

• • 

417 



5. 



223. 

320 



no 



740 
286 
530 



670 



640 



965 
638 

170 



369 

• • 

470 
264 
812 



926 

188 



558 
592 

005 



a a 

B o 



n 
130 



3.0 
3.0 
3.0 

3.5 
3.5 



3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 

3.5 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 



2.0 
2.0 
2.0 
2.0 
2.0 

2.4 

2.4 
2.4 
2.4 



Apparent 
Zenith Dis- 
tance, South. 



35 
47 



Barom. 



External 
Therm. 



m. 
30.200 
29.770 



60.3 
63.0 



Attaehed 
Therm. 



64.5 
64-5 



ti 



34 5 15.4 

25 54 56.9 

26 16 39.3 

18 22 59.5 

42 37 52.5 
42 5 47.0 



52 28 32.0 
19 I 2.2 

185 55 22.8 
48 20 55.1 
286 36 28.5 
336 51 59.8 
211 5 13.3 

29 36 28.3 

53 2 26.8 
325 49 12.5 

39 50 7.9 
284 42 52.8 

206 36 43.9 

155 36 56.3 
331 30 27.7 

33 58 1.8 
36 44 37.8 

36 45 30.8 

37 49 52.0 

34 5 55.4 

47 44 15.6 

312 17 54.9 

132 47 35.9 

65 18 54.7 

149 38 35.2 
328 57 47.4 

31 58 14.4 
51 49 16.3 

321 35 9.1 
57 30 26.8 

185 55 22.1 



328 54 50.8 



328 

53 
325 49 



II 31.5 
2 22.6 

9-3 



47 18 39-8 

306 8 57.1 

323 37 13.4 

25 12 40.7 

208 32 9.0 



I 

6 
o 

a" 



517 
508 

504 



422 
410 
402, 

394 

485 

• • 

493 



502 

• • 

518 

• • 

523 

• • 

523 
529 

• • 

529 
529 
478 
484 

• • 

501 
507 



512 



519 



415 



Refraction, 



n 



-h 390 






+ 






28.0 
28.4 
19. 1 

51.9 
50.9 



-h I 13.0 

4- 19.3 



I 
3 



5.9 

4.3 

9.5 

24.5 

34.6 



-I- 32.6 

+ I 16. I 

- 39.0 
-h 48.0 

- 3 35-7 

+ 28.9 

- 26.1 

- 31.3 
-H 38.9 
+ 43.1 

+ 43.1 

+ 44.9 

+ 39-1 

+ I 3-5 

- I 2.7 

- I 1.6 
4- 2 3.6 

- 33.6 

- 34.5 

4- 35.8 

+ I 12.9 

- 45-6 
-h I 300 
-H 6.0 



- 34.7 

- 35.7 
+ I 16.4 

- 39-1 
4- I 2.4 

- I 16.9 

- 41.5 
+ 26.6 

-I- 30.7 



Apparent N. 
P. Distance. 



ti 



85 12 15.6 

77 I 46.1 
77 23 28.9 

69 29 39.8 

93 45 5.6 
93 12 59- I 

103 36 6.2 

70 70 42.7 

45 10 52.5 
99 28 20.6 

337 39 40.2 

27 57 56.5 
20 o 33.3 

80 43 22.1 

104 10 4.1 

16 54 54.7 
90 57 17. I 

335 45 38.3 

24 29 8.4 
75 29 51.0 
22 36 17.6 

85 5 1.9 
87 51 42.1 

87 52 35.1 

88 56 58.1 

85 12 55.7 
98 51 40.3 

3 23 13.4 

98 19 46.9 

116 27 19.5 

81 28 19.6 
20 3 34.1 

83 5 II. 4 
102 56 50.4 

12 40 44.7 
108 38 18.0 

45 10 53.1 



20 o 37.3 

19 17 17.0 

104 10 0.2 

16 54 51.4 
98 26 3.4 

357 14 1.4 

14 42 53.1 
76 19 28.5 

22 33 41.5 



M 
S 



e 
c o 

S u 
^ o 

so 



It 



— 0.2 



- 5 
4- 2 

— o 



— 7 

— 7 

— 5 
4- 2 

— 2 

4- 2 

4- 3 

4- I 

— 5 

4- o 

4- 3 

4- 2 

4- 2 

+ 3 

— 4 

— I 

4- o 
H- I 

— I 

— I 

— o 

4- o 

— 2 

— 2 

4- o 
4- o 

— 2 

— o 
o 

— o 
4- o 

— I 



— 1.2 

— 1.2 

— 0.7 

— 0.7 
+ 0.3 

— 1.0 

— 2.1 
4- 0.5 

— 2.9 









MOON'S- 


• 




No. 












Hon seepage 3, 




Parallax. 


Semi-diam. 


fduci 




/ // 


/ n 






27 


- 33 41.7 


- 15 4.7 



13 



98 



OBSERVATIONS WITH THE TBANSIT CIBCLE 



DATE. 



1868. 
Oct. 5 



6 

9 



I 
2 

3 
4 
5 

6 

7 
8 

9 
10 

II 
12 

13 
14 
15 

16 

17 
j8 

19 
20 

21 
22 

33 
24 
35 

26 

27 
28 
29 

30 

31 
32 

33 
34 

35 
36 

37 
38 

39 

40 

41 
42 

43 
44 

45 
46 

47 
48 

49 
50 



OBJECT. 



67 Piazzi, S. P. 
A Ursae Minoris 
T Aquilae . 
a« Capricorni 
a Cygni, (R.). 

a Cephei . 
/? Cephei. (R.) 
e Pegasi . 
79 Draconis 
a Aquarii, (R.) 



6 Aquarii . . 
TT Aquarii 

Draconis, S. P. 

Aquarii 
a Piscis Australis 



I 



a 


X 

7 
a 



Pegasi, (R.) . 
Cephei . 
Draconis, S. P. 
Cephei . 
Andromed8e,(R.) 



y Pegasi . . 

Jupiter I, S. 

Jupiter II, N. 
e Piscium 

Neptune 

Polaris. 
Moon II, N. 
a Tauri . 
Venus I, S. 

Sun I, S. . 

Sun II, N. . 
6 Ursae Minoris 
51 Cephei, S. P. 
a Sagittarii . 

67 Piazzi, S. P. 
<fl Ursae Maj., S. 
a Cephei . 
^ Aquarii 
e Pegasi . 

fi Capricorni 
79 Draconis . 
fl Aquarii 
X Aquarii 
Cephei . 

X Draconis, S. P. 

< Piscium 

« Piscium 

a Andromedae, (R.) 
Weisse O, 305 
Jupiter I, N. 



• 






SECONDS OF TRANSITS OVER WIRES. 


CORRECTIONS. 






t 
as 


• 








Apparent R. 
Ascension. 














1 








Clock 


Clock 




VH 




^ 


I. 


II. 


III. IV. 


V. 


VI.' VII. VIII 

1 1 


IX. 


Mean wire. 


Inst. 


appar*nt. 


adopted. 




•- C 








1 
1 


m. s. 


s. 


8. 


s. 


1 
h. m. s. s. 


N. 


3 


34.1 


27.1 


23.1 


6.1 


0.654. 737. 733. 6]27. 1 


17 0.46 


— 0.88, . . 


+10.02 


7 17 9.60— 0.34 


N. 


3 


• • 


• • 


• • 


• • 


. . . . 4.025.041.0 


55 50.83 -+-10.87: . . 


+ 10.02 


19 56 11.72 — 0.15 


N. 


3 


21.3 


23.9 


25.33l.5!33.6;35.74i.8'43.3 


46.0 


57 33.60— 0.26+10.06 


+ 10.02 


19 57 43.36- 0.13 


N. 


3 


23.6 


26.3 


27. 8{34. 1 36.1,38.244.646.1 


48.7 


10 36.17— 0.324-10.00 


+ 10.02 


20 lo 45.87 + 0.02 


N. 


• 


30.6 


34.1 


36.245.1 


48.0 


50.859.4 1.6 


5.1 


36 47.88 -h 0.27 


• • 


+ 10.03 


20 36 58.24 + 0.17 


N. 


2 


52.5 


58.0 


i.o 


14. 0,18. 8 22. 9 36. i!39. 2 


44.9 


15 18.60+ O.IO 


• 


+ 10.03 


21 15 28.73+ 0.13 


N. 


2.3 


13. 821. 4 


25. 643. 6,49.855. 7114. 0.18. 3 


25.6 


26 49.76I+ 0.94 


• • 


+ 10.03 


21 27 0.73 -<c 0.31 


N. 


2 


22.525.2 


26.632.735.0136.943.044.7 


47.4 


37 34.89'- 0.25 


+ 9.98 


+ 10.03 


21 37 44.67,+ O.OI 


N. 


3 


• • 


• • 


54.0 i.O] 8.014.922.1' . . 


• • 


51 8.00 


+ 0.44 


♦ • 


+ 10.03 


21 51 l8.47|+ 0.3: 


N. 


3 


• t 


48.8 


51.0 


52.954.857.0, i.o 2.4 

1 1 1 


5.1 


58 52.86 


— 0.08 


• • 


+ 10.03 


21 59 2.81 


+ 0.06 


N. 


3 


32.5 


35.1 


36.6 


43.0 


1 
45.047.0 


53.254.7 


57.2 


9 44.92 


— 0.31 


+ 9.98 


+ 10.03 


22 9 54.64'+ 0.04 


N. 


3 


12.7 


15.2 


16.723.0125.0,27.0,33.134,5 


37.1 


18 24.92 


— 0.28 


+ 10.09 


+ 10.04 


22 18 34.68 — cot. 


N. 


2 


» • 


• • 


53.144.435.727.2,18.3 . . 


• • 


23 35.74- 1. 19 


■ • 


+ 10.04 


10 23 44.59— 0.20 


N. 


• 


24.2 


27.0 


28.434.6J36.638.5 


44.846.4 


48.8 


45 36.59- o.3i! + io.oi 


+ 10.04 


22 45 46.32 + O.Oi 


N. 


I 


0.0 


3.0 


4.7 II. 914. 1 


16.6 


23.625.4 

1 


28.3 


50 14.18 


- 0.38 


+ 10.05 


+ 10.04 


22 50 23 .•84 


— 0.02 


N. 


2 


51.4 


54.0 


55.5 


2.0 


4.1:6.2 


1 
12.5 14.0 


16.6 


58 4.03 


+ O.OI 




+ 10.04 


22 58 14.08 


+ O.OI 


N. 


3 


36.3 


42.7 


46.7 


2.8 


8.0,13.7 


28.533.5 


40.4 


13 8.07 


+ 0.20 




+ 10.04 


23 13 18.31 


— 0.02 


N. 


• 


56.3 


48.6 


44.4 


32.4 


26.2, . . 


1 
. . 1 . . 


• • 


23 20.37 


— 0.92 




+ 10.04 


II 23 29.49 + 0,10 


N. 


3 


• • 


. . 


37.2146.0 


54. 8i 3.5 


12.6 . . 


• • 


33 54.82 


+ 0.60 




+ 10.04 


23 34 5.46+ 0.04 


N. 


4 


13.4 


16.3 


18.0 


25.1 


27.329.636.638.3 


41.2 


I 27.31 


+ O.II 




+ 10.05 


I 37-47 + 0.04 


N. 


3 


• • 


• • 


21.923.9 


28.1I29.7 


32.245.0 


57.5 


6 19.68 


— 0.24+10.05 


+ 10.05 


6 29.49— 0.02 


N. 


I 


58.7 


1.3 


• • 


• • 


• • 


■ 


• • 


20.7 


23.1 


34 10.95 


— 0.28 




+ 10.05 


34 20.72 


• 


N. 


I 


• • 


• • 


10.3 


12.3 


14.3 


16.3 


18.4 


■ • 


• • 


34 14.32 


— 0.28 




+ 10.05 


34 24.09 


• 


N. 


3 


46.3 


49.0 


50.4 


56.8 


58.9 


0.9 


7.1' 8.7 


II. I 


55 58.80 


— 0.26 


+ 10.12 


+ 10.05 


56 8.59 


— 0.12 


N. 


2 


6.8 


9.5 


10.8 


17.3 


19.2 


21. 1 


27.228.7 


31.3 


I 19.10 


— 0.27 




+ 10.05 


I I 28.88 


• 


N. 


3 


• • 


. . 


52.0 


15.5 


38.0 


1.5 


27.0 . . 


• * 


II 38.92 


+ 8.39 




+ 10.05 


I II 57.361+ 0.32 


N. 


3 


• • 


7.0 


9.2 


II. 4 


13.5 


15.6 


20.l!2I.6 


24.5 


24 11.43 


— 0.23 




+ 10.07 


4 24 21.27;— 67. 6> 


N. 


3 


• • 


• « 


. * 


k ■ 


• • 


22.2 


23.926.7 


39.3 


28 13.83 


- 0.23 


+ 10.03 


+ 10.07 


4 28 23.67]+ 0.04 


F. 


3 


45.0 


47.5 


49.0 


55.5 


57.5 


59-5 


5.7 


7.5 


10. 1 


59 57.48 


— 0.23 




+ 9.03 


10 6.28 


- 0.74 


F. 


3 


0.9 


3.2 


5.1 


9.2 


• • 


17. 1 


21.3,23.1 


25.4 


49 13.16 


— 0.28 




+ 9.04 


12 49 21.92 


» 


F. 


3 


9.9 


12.5 


14. 1 


20.5 


22.5 


24.5 


30.632.2 


34.7 


51 22.39 


— 0.28 




+ 9.04 


12 51 31.15 


• 


F. 


3 


• • 


• • 


19.0 


54.0 


29.5 


3.0 


38. 5l . . 


• • 


14 28.94 


+ 2.71 




4- 9.07 


18 14 40.72;— 0.31 


F. 


3 


• • 


• ■ 


19.0 


37.5 


55.0 


15.0 


31.0, . . 


• • 


37 55.34 


- 3.97 




+ 9.07 


6 38 0.44— 0.57 


F. 


3 


• • 


• • 


• • 


58.1 


0.1 


2.3 


7.0^ 


8.6 


II. 5 


46 57.80 


- 0.34 


+ 9.18 


-+ 9.07 


18 47 6.53 


— 0.13 


F. 


• 


35.2 


28.1 


24.1 


7.1 


I.I 


55.9 


38.5 


34.5 


27.6 


17 1.34 


— 0.76 




+ 9.07 


7 17 10.65 


+ 0.64 


F. 


2 


• • 


• • 


47.3 


42.0 


36.3 


30.6 


25.5 


• • 


• • 


58 36.34 


- 0.73 




+ 9.08 


8 58 44.69 


— 0.21 


F. 


3 


• • 


10.4 


14.9 


19. 1 


23.2 


28.1 


36.6 


40.1 


45.1 


15 19.17 


+ 0.06 




+ 909 


21 15 28.32— 0.24 


F. 


3 


24.7 


27.2 


28.7 


34.9 


37. o| 


39.1 


45.4 


47.1 


49.5 


30 37.07 


— 0.28 


+ 9.01 


-+ 9.09 


21 30 45.88+ o.oo 


F. 


3 


23.4 


26.0 


27.4 


33.6 


35.737.7 


43.945.5 


48.1 


37 35.70 


— 0.24 


+ 917 


+ 9.09 


21 37 44.55- O.IO 

1 


F. 


3 


47.1 


49.6 


51.2 


57.6 


59.6 


1.7 


8.1 


9.7 


12.2 


46 59 64 


— 0.30 


+ 9.01 


+ 9.09 


21 47 8.43 + 0.03 


F. 


2 


• • 


• • 


• • 


• • 


. . 43.0 


46.953.7 


54.1 


51 8.85 


+ 0.32 


■ • 


+ 9.09 


21 51 17.96 


— 0.13 


F. 


3 


16.0 


18.5 


20.0 


26.3 


28.2.30.3 


36.337.9 


40.5 


28 28.22 


— 0.26 


+ 9.05 


+ 9.09 


22 28 37.05 


+ 0.04 


F. 


3 


25.1 


27.7 


29.3 


35.6 


37.539.5 


45.847.3 


49.7 


45 37.50 


— 0.28 


+ 9.06 


+ 909 


22 45 46.31 


+ o.og 


F. 


• 


• • 


• • 


58.4 


3.8 


8.914.5 


19.8 


• • 


• • 


13 9.08 


+ 0.15 


. • 


+ 9.09 


23 13 18.32 


0.00 


F. 


3 


57.1 


49.4 


45.6 


27.2 


20.9,15.1 


57.1 


52.8 


45.1 


23 21.14 


- 0.79 


• . 


+ 909 


II 23 29.44 + O.OI 


F. 


• 


51.6,54.1 


55-5 


1.8 


3-7. 5.6 


II. 813. 4 


16.0 


33 3.72 


— 0.24 + 9.12 


+ 9.10 


23 33 12.58- 0.04 


F. 


3 


13. 816. 2 


17.8 


24.1 


26.i!28.i 


34. 4^36.0 


38.2 


52 26.08 


— 0.24I+ 9.12 


+ 9.10 


23 52 34.94.- 0.04 


F. 


I 


14. 017. 2 


19.0 


23.6 


26.028.0 


30.432.8 


• • 


I 28.15 


+ 0.09 


+ 9.10 


I 37.34- o.<>J 

1 ^ ^^^^ 


F. 


3 


50.8:53.7 


55.1 


59.2 


2.9 8.0 


n. 0,13.0 


15.7 


19 3.27 


— 0.25 . . 


+ 9.10 


19 12.12+ 3-22 


F. 


2 


30.2 


32.8 


34.2 


• m 


• • 


• • 


• t 


51.9 


54.7 


33 42.39 


— 0.25 


• . 


+ 9.10 


33 51.24. • • 



1.2.7.9.13. 18. 19.36.44. Bisections at sets B and D. 

41. R. A. over Es-Es. 
41. Seems one rev. wrong in N. P. D. 
49. Wire A used. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



99 



mm 

3 



I 21 
22 

23 
24 

25 

26 
I 27 

28 

I 

. 29 

1 

I 30 

, 31 
32 

33 

1 5-* 

35 
36 

37 

3S 

39 

40 

41 
42 

43 
44 

, 45 

■ 46 
47 

43 

49 
50 



Circle 
Division. 



MICROSCOPE MICROMS. 



I 



I 

2 

3 

4 
5 

6 

7 
8 

9 
10 

II 
12 

13 
14 

15 , 

I 

16 ' 

17 
18 > 

19 
20 



287 36 

309 56 
31 54 
51 46 

185 52 

336 48 
211 2 

29 34 
325 46 
140 6 

47 16 

38 6 

295 16 

47 6 
69 6 

155 34 

331-28 

288 56 

321 56 
169 24 

24 32 

36 54 
36 54 
31 38 
34 4 

310 14 
22 26 
22 36 
27 8 

44 30 

43 58 

312 14 

306 6 

65 16 

287 36 

286 34 

336 48 

47 16 

29 34 



325 46 
39 36 
47 6 

331 28 

288 56 

33 54 
32 42 

• • 

35 36 

36 56 



I. 



I r. 



5.3 
7.2 

9-3 
9.0 

9.0 

8.4 
5.2 
9.8 
9.0 

5.7 

10.8 
10.7 

7.1 

12.2 

9.8 

6.2 

7.2 
7.2 
8.2 
8.1 

10. 1 

6.7 

6.7 
9.0 

8.5 

6.7 

9.7 
7.6 

5.3 

5.8 

8.7 
4.6 

6.0 

6.7 



4-5 
12.0 

9 29.3 

5.6 

10 16. I 



I.I 

8.5 
8.6 

5.7 

6.6 
5.2 
3.4 



10 



4.0 
6.1 



II. 


III. 


II 


II 


4.9 


0.2 


5.6 


2.0 


7.7 


0.9 


7.9 


I.I 


9.1 


3.8 


6.6 


1.5 


7.6 


0.5 


7.7 


1.2 


7.8 


3.1 


5.8 


29.2 


9.4 


2.8 


8.7 


2.5 


6.0 


1.5 


10.4 


4.0 


. 8.5 


1.3 


4.3 


28.9 


5.7 


0.7 


6.4 


2.5 


6.6 


2.5 


7.7 


2.0 


8.1 


1.6 


4.7 


29.0 


4.7 


29.. 


7.6 


0.6 


6.5 


29.7 


4.7 


I.I 


6.9 


1.5 


5.5 


29.1 


2.3 


27.0 


2.5 


2.6 


5.3 


0.0 


1.6 


29.4 


4.7 


I.I 


5.7 


28.0 


2.7 


26.7 


10.9 


6.2 


27.1 


21.9 


3.6 


27.2 


13.4 


6.1 


28.6 


23.7 


5.9 


29.9 


7.3 


0.9 


3.4 


28.0 


4.9 


0.6 


2.3 


25.4 


0.4 


23.3 


1.7 


25.9 


3.1 


27.3 



IV. 



TELESCOPE MICROMETER. 



II 

2.1 
3.8 

3.3 
3.8 
2.6 

3.1 

t.4 
4.1 

5-4 
29. 5 

5.2 
4.4 

3.5 
5.7 
4.4 

28.8 

2.3 
4.0 
4.0 
I.I 

3.8 
0.8 
0.8 

3.4 
2.1 

2.5 

3.7 

1.5 
28.2 

28.3 
i.o 

29.6 
2.8 
1-4 

0.3 

8.3 

23.3 
0.4 

10.3 



26.9 
2.6 

2.3 
0.2 

3.9 
29.3 
27.2 



Rev. 



28.3 
0.3 



23 

25 
22 

26 
25 

23 
26 

29 
26 

23 

28 

23 

28 

26 
22 

27 
29 
24 
22 

21 

23 
23 

26 

23 
21 

22 
26 
28 

24 

25 
25 
23 
27 
27 

23 

• • 

24 
27 
29 



26 
22 
26 

29 

24 

23 

28 



29 
27 



I. 



562 



860 



641 

545 
645 



570 

• • 

326 

496 
512 



905 
761 



665 

268 
975 

• • 

603 
343 



966 

509 

753 

402 
008 



206 



870 

450 
838 



3. 



218 

851 



816 ! 754 



575 
496 

747 



517 
174 

. • 
490 

525 

935 

849 
819 

196 ! 162 
164 216 



530 
328 



742 



667 

282 
955 

668 
528 



924 

578 
777 

502 
048 



182 150 



250 



776 652 



895 

484 
766 

758 



456 



383 
409 



187 

« • 

228 
090 

375 



955 
491 



4. 



375 

• • 

093 
719 

640 



341 
7" 
954 

430 
070 

375 
416 

362 

822 
701 



141 
094 

560 



561 

548 

278 
212 

• • 

580 



357 
941 

536 
658 

265 

975 

177 
640 

010 



025 

703 



382 

593 
770 



248 



5. 



495 
569 



657 
682 



389 

645 
893 

371 



335 
300 



715 



179 
022 

600 



640 

488 

334 
305 

• • 

503 



431 

959 

452 

574 



987 

278 

495 
966 



315 
942 

543 
748 

297 

• • 

601 



4>CJ 



11 



2.4 
2.4 
2.4 
2.4 
2.4 

2.4 
2.4 

2.4 
2.4 

2.4 

2>4 
2.4 
2.4 
2.4 
2.4 

2.4 
2.4 

2.4 
2.4 

2.4 

2.4 

2.4 
2.4 
2.4 
2.4 

2.4 
2.4 
2.4 

2.0 

2.0 
2.0 

2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 



2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 



2.0 
2.0 



Apparent 
Zenith Dis- 
tance, South. 



• / // 

287 39 59.9 

309 59 31.5 
31 58 16.2 

51 49 17.5 
185 55 22.2 

336 51 56.3 
211 5 12.6 
29 36 27.5 
325 49 10. I 
140 9 53.6 

47 18 40.5 



6 

.2 « 
B 



428 

438 

442 



451 



Refraction, 



— 2 

— I 

-I- I 



4- 



36 10 2.8 


• • 


295 18 44.8 


451 


47 9 10.6 


* • 


69 10 13.8 


• • 


155 36 54.5 


465 


331 30 24.7 


• • 


288 59 39-9 


• • 


322 18. I 


461 


169 28 34.9 


• • 


24 25 55.6 


460 


36 57 ?8.o 


• • 


36 57 12.4 


• • 


31 42 3.3 


• • 


34 8 28.6 


467 


310 18 18.7 


■ • 


22 29 3.1 


• • 


22 38 45.6 


484 


27 II 46.0 


480 


44 33 32.8 


442 


44 I 29.0 


• • 


312 17 55.2 


• ■ 


306 8 58.1 


470 


65 18 55.9 


■ • 


287 40 3.1 


500 


286 36 29.5 


525 


336 51 56.7 


• • 


47 18 58.2 


• • 


29 36 26.5 


540 


325 49 23.8 


« • 


39 40 20.3 


556 


47 9 9.9 


■ • 


331 30 24.1 


• • 


288 59 44.0 


567 


33 58 0.0 


■ • 


32 44 44.5 


• • 


• • • • 


568 


35 41 8.4 


• • 


36 59 2.5 


568 



+ 
+ 

+ 



-f 



+ 



II 

55.1 

7.3 

35.3 
II. 8 

5.9 

34.2 
34.2 
32.2 

38.5 
47.3 



4- I 1.4 
4- 44-6 

- I 59-3 
-h I 1.2 
+ 2 28.4 



35.8 

30.9 
43.6 

44.4 
10.5 



— 3 



25.8 
42.8 
42.8 
35.2 
38.6 



- I 7.1 

-I- 23.7 

+ 23.9 

-h 39.3 



-h 
-h 

— I 

— I 
4- 3 



55.7 

54.7 

2.4 
17.8 

3.4 



2 57-9 

3 II. o 
34.7 

I 3.7 

32.9 



- 39-4 

4- 48.3 

4- I 3.8 

- 31.6 

- 2 47.5 
4- 39-2 
4- 37.5 



41.9 
43-9 



Apparent N. 
P. Distance. 



• / // 

338 43 36.0 

I 4 45.4 

83 5 12.7 

I03 56 50.5 

45 10 53.1 

27 57 53.3 
30 o 34.4 

80 43 30.9 

16 54 53.8 

90 57 14.9 

98 36 3.1 
89 17 8.6 

346 33 6.7 
98 16 33.0 

I30 19 3.4 

75 29 52.5 

33 36 15.0 

340 3 16.7 

13 5 55.7 
61 37 56.8 

75 32 42.6 
88 5 3.0 
88 4 16.4 

83 48 59-7 
85 15 38.4 

I 33 33.8 

73 35 48.0 

73 45 30.7 
78 18 36.5 

95 40 49-7 

95 8 44.9 

3 23 14.0 

357 14 1.5 
116 37 so. 5 

338 43 36.4 

337 39 39.7 
27 57 53-2 
98 26 22.1 
80 43 20.6 



16 55 5.6 

90 47 29.8 

98 16 33.9 
22 36 13.7 

340 3 17.7 

85 5 0.4 
83 51 43.2 

86 48 II. 5 
88 6 7.6 



(A 



tA 



^ c 

2 o 

u u 

lA ^ 



II 

4- 2.0 

4- 0.3 

4- 0.8 

0.0 

- 1.4 

— 0.8 

- 3.3 

— 0.1 

4- 1.5 
0.0 

— 0.1 

— 0.4 
4- 0.4 

— 0.9 
4- 1.6 

4- 0.2 

— 0.1 
4- 0.7 
4- 0.3 

— 0.8 

+ 0.8 

-r 1.3 

— 1.3 

— O.I 

— 0.2 
4- 0.4 

+ 1.5 

- 5.1 



6.2 
6.1 
1.8 
0.9 
I.I 



4- 



4- 2.5 

4- 3.7 

- 0.7 

- 0.5 

- 0.3 



+ 14.5 
+ I.I 

— 0.1 

— 2.0 

4- 2.2 

— 0.3 

- 0.6 

— 21.6 

- 1.3 



yo. I Barom. 



External 
Therm. 



ra. 



Attached 
Therm. 



For summary of the elements of reduction see page 3. 



No. 



MOON'S— 



Parallax. 



27 



ti 



— 20 40.5 



Semi-diam. 



f» 



4- 15 36.8 



100 



OBSEBVATIONS WITH THE TRANSIT CIRCLE. 





. 






C 




SECONDS OF TRANSITS OVER WIRES. 




CORRECTIONS. 






DATE. 


1 

S 




OBJECT. 


JO 


4 




1 






Apparent R. ; ~ 5 


I. 


1 
II. III. 


IV. 


V. 


VI. 


VII. VIII IX. 


Mean wire. 


Inst. 


Clock 

_ _ » ^ 


Clock 
adopted. 


Ascension. 


.55 ' 




Z 































apparnt. 




Su 


1868. 






1 




m. s. 


s. 




s. 




h. m. s. 


s. 


Oct. 6 


I 




Jupiter II, S. . • 
Fiscium 


F. 


9 


• • 


. . 41.8 


43.8 


45.847.849.8 


• • 


• • 


33 45.80- 


0.25 






4- 9.10 


33 54.65 




2 


e 


F. 


3 


47.4 


50.051.4 


57. 959-9' 


1.8. 8.0 

1 


9.6 


12.0 


55 59.78- 


0.24 


+ 


9.13 


4- 9.10 


56 8.64 — o.oS 


■ 


3 




Polaris .... 


F. 


3 


• • 


. . 49.0 


14.0 


41.0 


4.029.0 


• • 


• • 


II 39.70-1- 


7.00 




. . + 9.10 


I II 55.80 -H 0.54 

1 


7 


4 




Sun I, N. . . . 


T. 




40.3 


1 
42.944.4 


50.7 


52.754.8' 0.9 2.6j 4.9 


52 52.69- 


0.27 




. . '-4- 9.14 


12 53 1.56 




5 




Sun II, S. . . . 


T. 




• • 


58. 0; 0.0 


2.0 


4.1* 6.2tio.i Ti.8,14.3 


55 2.02- 


0.27 




. . -1- 9.14 


12 55 10.89 




6 


C 


Cygni .... 


T. 




S8.3 


i.i; 3.0 


10. 1 


12.4 14. 621. 8:23. 6j26. 6 


7 12.39- 


0.16 


-f- 


9.20 -}- 9.20 


21 7 21.43 — 0,01 




7 


a 


Cephei .... 


T. 




• • 


10.5 15.0 


19.5 


23.628.236.640.2145.5 


15 l9-39,+ 


0.08 




. . -h 9.20 


21 15 28.67 4- O.Is 




8 


24 


Urss Majoris, S. P. 


T. 




13.9 


5.8 


1.7 


43.3 


37. 631. 5'". 


8.3 1.0 

1 


22 37.12 — 


0.83 




. . -+■ 9.20 


9 22 45.49+ O-U 




9 


e 


Pegasi .... 


T. 




23.325.8 


27.4 


33.5 


35.637.643.945.448.0 


37 35.6X- 


0.23 


\ 


9.24 + 9- 20 


21 37 44.58— o.(/i 




10 


f^ 


Capricorni 


T. 




46.949.5 


51.0 


57.4 


59.4 1.5 7.9! 9.5,12.1 


45 59.47- 


0.29 


+ 


9.16 1+ 9.20 


21 46 8. 38 — 0.01 




II 


79 


Draconis 


T. 




26.735.4! 


40.4 


1.9 


9.oi6.a36.6|42.0;50.7 


51 8.74 -h 


0.36 




. . -»- 9.20 


21 51 18.30 4- 0.26 




Z2 


a 


Aquarii, (R.) . . 


T. 




• ■ 


• • 


• • 


• • 


■ • 


• • 


■ • • • 


• • 


• • • 


• • 




. . . . 


. • ■ • . . . 




13 


d 


Aquarii . . . 


T. 




33.4 


36.037.4 


43.6 


45.647.753.9 


55.557.9 


9 45.67- 

1 
1 


0.27 


+ 


9.17 '4- 9.21 


22 9 54.61 4- 0.03 




14 


jr 


Aquarii 


T. 




13. 616. 1 17.6 


23.8 


25.827.8.34.0 


35.537.9 


18 25.79- 


0.25 


-1- 


9.17 4- 9.21 


1 

22 18 34.75 + 003 




15 


9 


Draconis, S. P. . 


T. 




19.2 i8.o;ii.8 


46.0 


37.028. 5I 2.0 


55.344.6 


23 36.93- 


1.05 




. . '4- 9.21 


10 23 45.09 + o.i; 




16 


c 


Pegasi, (R.) . . 


T. 


3 


• • 


42.244.3 


46.3 


48.350.3:54.5 


56.2 


58.7 


34 46.28 — 


O.OI 




. . ;4- 9.21 


22 34 55.484- 0.07 




17 


( 


Cephei, (R.) . . 


T. 




24.7 


30.734.4 


49.4 


54.2 


58.8 


14.0 


17.3 


23.6 


44 54.12; + 


0.66 




-f 9.21 


22 45 3-99 -«- 023 




18 


a 


Pegasi .... 


T. 




52.3 


55.1 


56,6 


3.0 


5.0 


7.1 


12.4 


15. 1 


17.6 


58 5.02- 


0.21 


-h 


9.26 1-1- 9.21 


22 58 14.02 — 0.04 

1 




19 





Cephei .... * 


T. 




37.2 


43.9 


47.5 


4.1 


9.4 


14.3 


30.2 


34-3 


39.8 


13 8.97 + 


0.18 




. . 4 9.21 


23 13 18.36+ 0.06 




20 


6 


Piscium . . . 


T. 




58.0 


0.4 2.0 


8.0 


10.2 


12.2 


18.5 


20.0 


22.6 


21 10.21 — 


0.23 


-h 


9.26 '4- 9.22 


23 21 19.20 -h 0.03 




21 


y 


Cephei .... 


T. 




2.4 


13.4:20.0 


47.5 


56.2 


5.1 


31.8 


390 


50.0 


33 56.164- 


0.52 




. . ;+ 9.22 


23 34 5.90;+ 0.52 




22 


4i63Groombndge . . 


T. 


• 


40.849.955.3 


17.3 


24.6 


31.5 


53.6 


58.8 


7.8 


48 24.4o:-h 


0.37 




. . '4- 9.22 


23 48 33-99;+ 025 




23 


0) 


Piscium . . . 


T. 




13.6 


16. 317. 7 

1 


24.0 


25.9 


27.9 


34.1 


35.8 


38.2 


52 25.94 


__ 


0.23 


+ 


9.25 '-I- 9.22 


23 52 34.93 — 0.05 

1 




24 


4 


Draconis, S. P. . 


T. 




45.4 


31.624.4 


44.2 


33.7 


24.0 


4.0 


56.0 


43.4 


5 44.10- 


1. 19 




. . 4-9.22 


1 
12 5 52.13— 0.21 




25 




Pales .... 


T. 


3 


42.0 


44.846.4 


52.5 


54.5 


56.5 


2.7 


4.4 


7.0 


12 54.53- 


0.23 




• ■ 


-h 9.22 


13 3.52, . 




26 




_ upiter I, N. . . 


T. 




i.o 


3.5 . . 


• • 


• • 


• • 


■ • 


• • 


. • 


33 13.20 — 


0.25 




A • 


4- 9.22 


33 22.17 • • 




27 




upiter II, S. . 


T. 




■ • 


. . 


• • 


• m 


• • 


24.5 


26. z 


28.5 


33 16.24 — 


0.25 




• • 


4- 9-22 


33 25.3I1 • 




28 


e 


'iscium 


T. 




47.450.051.5 


57.6 


59.7 


1.7 


8.0 


9.4 


12.0 


55 59.70 


_^ 


0.23 


-h 


9.21 


+ 9.23 


56 8.70 


— 0.03 




29 


6 


Ursas Min.. S. P. . 


T. 


2 


19.055.0 


43.0 


9.0 


• • 


• • 


• • 


• • 


• 


14 35.25 


— - 


2.60 




• • 


4- 9.26 


18 14 41.91 4- 1.5^ 




30 




Venus I, S. . . 


T. 


3 


3.7 6.2 


7-7 


• • 


• • 


• • 


24.5 


25.9 


28.5 


7 16.08 — 


0.26 




• • 


4- 9.39 


10 7 25. 21; . . 




31 




Venus II, N. . 


T. 


3 


• • 


m ■ 


12.8 


15.017. 1 


19.0 


21.2 


• • 


. . 


7 17.02 




0.26 




• • 


+ 9-39 


10 7 26.15 


8 


32 


51 


(H) Cephei . . 


N. 


2 


• • 


• • 


24.0 


7.550.0 


30.0 


14.5 


• • 


• « 


37 49.36-+- 


2.26 




. . + 9-55 


6 38 1. 17 4- 0.72 




33 


e 


Canis Majoris 


N. 


I 


• ■ 


• • 


28.0 


29.6 


32.7 


46.6150.0153.6 


0.3 


53 18.71- 


0.37 


-h 


9.46 4- 9.56 


6 53 27.904- O.oS 




34 


J 


Geminorum 


N. 


2 


53.5 


56.4 


57.7 


4.5 


7.0 


8.9;i5.6;i7.3 


20.0 


12 6.77- 


0.23 


-h 


9.63 4- 9.56 


7 12 16.10— O.IO 




35 




Uranus 


N. 


2 


1.6 


4.6 


6.0 


T2.6 


15.0 


17.2,23.8125.5 


28.1 


15 15.04- 


0.23 




. . 4-9.56 


7 15 24.37 




36 




Moon II, S. . . 


N. 


2.1 


59-3 


2.0 


3.7 


10.3 


12.5 


14.6 


21.3123.1 


25.9 


22 12.32 — 


0.24 




« • 


+ 9.56 


7 22 21.84—70.95 




37 


a 


Canis Minoris 


N. 


2 


3.3 


6.1 


7.4 


13.6 


15.8 


18.0 


24.0 


25.5 


28.0 


32 15.74- 


0.27 


-h 


9.62 


+ 9.56 


7 32 25.03— O.oS 




38 


/? 


Geminorum 


N. 


2 


• • 


• ■ 


1.8 


4.1 


6.4 


8.9 


II. 2 


• 


• • 


37 6.48I- 


0.21 


+ 


9.61 


4- 9- 56 


7 37 15.83 0.05 




39 


e 


HydraB .... 


N. 


3 


26.6 


29.3 


34.9 


37.039.0 


40.9 


43.1 


48.7 


51.3 


39 38.98 


— 


0.27 


4- 


9.61 


+ 9-57 


8 39 48.28— 0.04 




40 




Venus II, S. . . 


F. 


3 


15.3 


18.0 


19-5 


25.727.7 


29.8 


36.1 


37.5 


40.2 


II 27.76 


— 


0.28 




• • 


+ 9-49 


10 II 36.97— 0,72 




41 


/? 


Leonis .... 


F. 


2 


58.0 


0.4 


2.0 


8.8 


10.6 


12.9 


19. 1 


20.8 


23.3 


42 10.66 


•^ 


0.27 


-+- 


9-47 


4- 9.50 


II 42 19.89 -1- 0.04 


9 


42 




Sun I, S. . 


F. 


2 


0.0 


2.6 


3.9 


10.3 


12. 1 


14. 1 


20.5 


22.0 


24.6 


12.33 


— 


0.32 




• • 


+ 9.51 


13 21.42 . . 




43 




Sun II, N. . . . 


F. 


2 


• • 


18.2 


20.2 


22.5124.3 


26.5 


30.6 


32.3 


34.7 


2 22.87 


— 


0.32 




• • 


+ 9.51 


13 2 31.56 


• 




44 




Polaris, S. P. . . 


F. 


I 


• ■ 


• • 


27.0 


5.046.0 


26.0 


1.0 


« • 


• • 


II 44.70 


— 


3.41 




■ • 


+ 9.51 


I II 50.80— 6.73 




45 


a 


Bootis .... 


F. 


• 


16.3 


18.9 


20.7 


24.6,27.0 


29.4 


■ • 


• • 


• • 


9 29.23 


— 


0.26 


-h 


9.55 


+ 9.52 


14 9 38.69— 0.02 




46 


\ 


Ursa Minoris . 


N. 


3 


• « 


• « 


• • 


54.043.0 


33.5 


• • 


• • 


• • 


55 43.73 


-f- 


3.84 




• • 


4- 9.66 


19 55 57.23- 90* 




47 


a« 


* 

Capricorni 


N. 


3 


26.7 


28.1 


32.5 


34.436.4 


38.6 


40.7 


45.0 


46.5 


10 36.54 


— 


0.34 


-h 


9.59 


4- 9.66 


20 10 45.264- 0.07 




48 


w 


Capricorni . 


N. 


2 


26.0 


28.7 


30.2 


• • 


47.6 


49.0 


51.8 


4.9 


17.6 


19 38.91 


— 


0.35 


-h 


9.39 


4- 9.66 


20 19 48.224- 0.27 




49 


e 


Delphini 


N. 


3 


34.6 


37.1 


38.6 


45.047.1 


49.1 


55.3 


57.0 


59.6 


26 47.04 


^^" 


0.2S 


+ 


9.64 


4- 9.66 


20 26 56.42 -f 0.03 








• 

8. II. 15 


.21.2 


12.24 
33 


. Bisections at sets B and D. 

. R. A. observed over wires D, Ei, Es, Ea, a 


nd VII. 


















48 


. Observed over sets B and D ; VI and VI] 


[. 









OBSERVATIONS WITH THE TRANSIT CIRCLE. 



101 






1 

2 

3 

4 

5 
6 

7 
8 



lO 

II 

12 

13 
! 14 

i6 

17 

iS 

19 
20 

21 

22 

] 23 

i 

24 

25 
26 

28 

. 29 < 

30 

. 31 i 

32 

' 33 

, 34 

35 

: 36 

I 

37 

38 

' 39 

i 40 

' 41 

42 

I 43 

44 

45 
' 46 

47 
I 48 

49 



Circle 
Division. 



36 56 

31 38 
310 14 

44 22 

44 54 

9 8 

336 48 

289 16 

29 34 

53 58 

325 46 

140 6 

47 16 

38 6 
295 16 

151 12 

206 32 

24 20 

331 28 

33 10 

321 56 

325 10 

32 42 

397 12 
31 38 

37 o 
37 o 
31 38 



27 42 
27 42 

311 36 

16 36 
16 6 
20 18 

33 16 
10 30 
31 56 
27 58 
22 30 

45 38 
45 6 

18 58 
309 56 

51 46 

27 58 



MICROSCOPE MICROMS. 



TELESCOPE MICROMETER. 



I. 



r. 



10 
10 



n 

6.1 

2.7 
2.1 

1.5 

4-9 
10.4 

10.6 
II. 3 

8.1 
10.6 

9-5 

6.7 
17.0 

9.6 
8.9 

7.4 
7.6 

10. o 

9.5 
8.7 
9.3 
8.3 
8.3 

7.8 
9.6 
9.1 
9.1 
13.8 



10.6 
10.6 

5.6 

7.3 
7.2 

6.1 

5.7 
6.5 

7.1 
30 

2.3 

4.7 
5.5 

2.7 
3-5 

5.6 
5.9 



II. 



n 

3.1 
0.7 

0.2 

29.0 
2.6 

7.9 

9.3 

10. o 

5.6 
8.4 

7.7 

6.5 

15. 1 

7.0 
.7.1 

6.5 

9.2 
7.5 

7.4 

6.7 

7.3 

6.3 

6.9 

6.6 

8.3 
5.8 

5.8 

II. o 



7.5 
7.5 

2.9 

3.8 

3.7 
2.0 

2.3 
3.1 

3.9 
29.1 

29.5 

2.6 
2.7 

29.8 
0.7 

3.6 
2.1 



III. 



I, 

27.3 
24.1 

26.1 

22.8 
26.9 

3.5 
4.0 

5.4 

29.1 
2.0 

3.5 
29.0 

8.0 

4.5 
2.6 

0.4 

3.4 
1.4 

2.3 

29.7 

2.9 

I.I 

28.9 

1.6 

0.1 

29.8 

29.8 

4.0 



2.1 
2.1 

29.9 

0.1 
29.9 
28.5 

28.9 

0.3 
29.1 

26.5 

26.6 

29.6 
0.0 

27.7 
29.4 

29.4 

27.6 



IV. 



0.3 
26.8 

28.6 

25.8 

28.5 

4.6 

5.0 

6.1 

1.3 
4.5 
5.8 

29- 5 
9.9 

2.6 
5.6 
0.7 

2.8 
3.8 

4.6 

2.3 
4.5 
3.9 
1.7 

3.7 
2.8 
2.6 
2.6 
6.7 



3.7 
3.7 

2.1 

2.8 

3.9 
I.I 

1-5 

2.5 
1.9 

27.8 

26.6 

0.7 
1.7 

29.3 
1.6 

1-7 
i.o 



Rev. 



23 

23 
22 

30 

29 
23 

23 
21 

29 
21 

26 

23 
27 

23 
28 

23 ; 
20 

26 

29 
25 
22 

25 

28 

22 

28 

25 
22 

22 



25 
26 

26 

22 

23 
24 

26 

27 

27 

19 
21 

22 

23 

27 

25 

26 
26 



I. 



396 
166 



295 



614 
860 



355 



595 



124 

515 
922 

273 
672 



799 



2. 



723 
456 

208 

850 
418 
674 

559 

• ■ 

782 
895 



300 
250 

• • 

460 



661 
680 
118 
790 
376 

372 

686 
950 

• • 

946 



615 



955 
798 

535 

010 
047 

458 
9S8 
196 

968 



703 



442 



3. 



425 



440 
492 



923 



422 



796 



345 



490 



4. 



904 
653 
490 



232 
921 



I 



409 
390 
641 
756 
934 

019 
222 

872 
411 

729 

488 
610 
161 
626 
286 

400 
640 

• • 

620 



467 
765 

885 
740 

324 

864 

985 
196 

738 
176 



264 



715 
380 



157 

487 



420 



c o 



520 



962 



210 

979 

• • 

729 



569 

• • 

732 



090 

• • 

765 



235 



990 
292 

765 
993 



305 



592 



II 

12.0 
12.0 
12.0 



12.0 
12.0 
12.0 
. i 12.0 
. . 12.0 



Apparent 
Zenith Dis- 
tance, South. 



12.0 
12.0 
12.0 
12.0 
12.0 

12.0 
12.0 
12.0 
12.0 
12.0 

12.0 
12.0 
12.0 
12.0 
12.0 

12.0 
12.0 
12.0 
12.0 

12.0 I 

I 



13.0 
13.0 , 

I5-0 

15.0 
15.0 
15.0 

15. o 
I5-0 
15.0 
15.0 
15.0 

15.0 
15.0 

15.0 
15.0 

15.0 

15.0 



S 

o 

I 



o / // 

36 59 52.4 

31 42 1. 81 
310 18 20.2 

44 24 25.0 

44 56 31.8, 

9 II 50.9; 
336 51 57.8, 
289 20 24.0 

29 36 28.2 
53 2 26.9 

325 49 7.6 

140 9 54.8 

47 18 41.6 

38 10 2.5 
295 18 44.4 
151 15 51.8 
206 36 43.9 

24 23 7.3 

331 30 24.1 

33 13 26.1 

322 o 18.2 

325 13 25.1 

32 44 45.4 

297 16 14.7 
31 40 39.7 

37 3 23.2 

37 4 10.5 
31 42 3.7 



27 45 32.1 

27 45 II. 9 

311 40 45.2 

16 40 I I. 7 
16 9 58.6 
20 21 50.6 

33 19 26.9 
10 33 9.4 

31 59 4.2 

28 3 2.9 

23 34 43-4 

45 42 16.2 

45 10 5.5 

19 I 2.6 
309 59 32.0 

51 49 14- 3 
28 I 20.1 



570 



427 
450 



Refraction. 



+ 
— I 



+ 
4- 



450 - 2 



450 



448 



II 

43.9 
36.0 

8.6 

55.3 
56.2 

9.2 

24.2 

40.1 



4- 



443 



. . -H 



-+- 



32.2 

I 15.3 

38.5 

47.3 
I 1.4 



+ 
— I 



441 



438 



433 



378 
696 

710 



-f- 



— I 

-h 

■f 

+ 

i + 






44-5 
59.2 

31. 1 
28.4 

25.7 

30- 7 

37.1 I 
44.2 

39-3 
36.4 

49.2 

34.9 
42.6 

42.6 
34.9 



29.4 
29.4 



- I 7.4 



-h 



712 
684 

640 ; 
612 



597 

563 
611 



H- 



-f 



18.0 

17.5 
22.4 

39.6 
II. 2 

37.4 
31.6 

25.7 



-h I 0.1 

-h 59.0 

-h 20. 1 

— I 10. I 



..-hi 14.9 



623 



-+- 31.4 



Apparent N. 
P. Distance. 



• / // 

88 6 57.5 

82 48 59.0 
I 23 32.8 

95 31 415 

96 3 49.2 

60 18 21.3 

27 57 54.8 
34024 5.1 

80 43 21.6 
104 10 3.4 

16 54 50.3 
90 57 13.7 
98 26 4.2 

89 17 8.2 
346 23 6.4 

79 51 0.5 
24 29 8.9 
75 29 54.2 

22 36 14.6 
84 20 24.4 

13 5 55.2 
16 19 7.0 

83 51 43.0 

348 20 46.7 

82 47 35.8 
88 10 27.0 
88 II 14.3 
82 48 59.8 



78 52 22.7 

78 52 2.5 

2 45 59-0 



67 46 
67 16 
71 28 

84 26 
61 39 
83 6 

79 9 
74 41 

96 49 
96 17 

70 7 
I 4 

102 56 
79 8 



50.9 
37-3 
34.2 

27.7 

41.8 

2.8 

55.7 
30.3 

37.5 
25.7 

43.9 
43.1 

50.4 



S 2 

CO '2 

U u 
(A u 

'^ O 



II 

- 1-3 

- 0.8 

4- 0.8 

- 6.3 

- 6.3 

-h 1.0 

-h I.I 
+ 2.0 

-h 0.7 
-h 2.2 

0.5 
1.2 

0.9 



+ 



- 0.8 
-h 0.7 

- 1.6 

- 2.1 
+ 2.1 

- 0.8 1 

- 0.6' 
+ 0.5 

- 1.2 

- 0.8 

-h 2.6 

- 3-3 

- 1.3 

- 1.3 
0.0 



- 5.1 

- 51 



+ 1.4 



-k- 2.0 
— 0.1 



+ 1.6 

-\- 1.4 

-\- 0.5 

- 5.1 
-f 0.5 

- 6.3 

- 6.3 

-H 1.9 

- 1.5 

- 0.3 



12.7 - 1.3 



No. 



32 

43 
46 



Barom. 



tn. 
30.304 
30. 316 
30.264 



External 
Therm. 



39-7 

51.7 
48.0 



Attached 
Therm. 



60.5 

59-7 
60.0 



For summaty of the elements of reduetion see page 3. 



No. 



36 



MOON' 



Parallax. 



/ // 
— 20 17.5 



Semi-diam. 



/ // 
— 16 4.5 



102 



OBSEBVATIOM8 WITS TBE TRAKSTT CIBCLE. 





• 






• 
> - 




SECONDS OF TRANSITS OVER WIRES. 




1 
CORRECTIONS. ' 


3 K 




DATE. 


E 

3 




OBJECT, 


t 

.a 



• 










Apparent R. 




I. 


II. 


III. 


IV. 


1 
V. 


VI. 


VII. 


VIII 


IX. 


Mean wire. 


Inst. 


Clock 
appar'nt. 


Clock 
adopted. 


Ascension. 






1868. 


m. 8. 




s. 


8. 


8. 


h. m. 8. 


S. 


Oct. II 


I 




Venus I, S. . . 


N. 


3 


49.8 52.4'53.8 


• • 


• • 


• • 


10.5 


12.0 


14.6 


24 a. 18 


— 


0.33 


• • 


4-10.05 


10 34 11.90 


• • 




2 




Venus II, N. . . 


N. 


3 


. . . . 58.9 


I.O 


3.0 


5.1 


7.2 


• • 


• • 


24 3.04 


— 


0.33 


. . +10.05 


10 24 12.76 . . 




3 


a 


Ursae Majoris . 


N. 


4 


55.9 1.6 4.7 


18. 1 


22.5 


26.9 


40.1 


43.5 


48.9 


55 22.47 


-h 


0.05 


• • 


4-10.06 


10 55 32.58;+ 0.07 

^ 1 


1 


4 


6 


Leonis .... 


N. 


2.1 


42.645.547.0 


53-6 


55.8 


58.0 


4.7 


6.2 


9.0 


6 55.82 


— 


0.28 


4-10.06 


4-10.07 


II 7 5.61^— O.OI 




S 


/3 


Leonis .... 


N. 


2 


« ■ 


• • 


• • 


10.3 


12.3 


14.5 


18.7 


20.2 


22.7 


43 10.21 


— 


0.31 


+ 10.00 


4-10.07 


II 43 19.97 + CO? 




6 




Polaris, S. P. . . 


N. 


2 


23.0 


38.5 


39.0 


• • 


• • 


• • 


22.0 


19.0 


36.0 


II 59.68 


•^ 


8.78 


• • 


4-10.08 


I 13 0.98 + 3.52 

13 II 36.I6I . . 


12 


7 




Sun I, N. . . . 


N. 


2 


4.1 


6.8 


8.0 


14.4 


16.5 


18.6 


24.7 


26.4 


28.8 


II 16.48 


i_ 


0.40 


• m 


+ 10.08 




8 




Sun II. S. . . . 


N. 


2 


14.1 


16.7 


18.1 


24.4I26.4 


28.5 


34.7 


36.3 


38.8 


13 26.44 


— 


0.40 


• • 


+ 10.08 


13 13 36. I2[ . 




9 


a 


Bootis .... 


N. 


4 


15. 618. 4 


19.9 


26.5I28.7 


30.9 


37.3 


38.9 


41.7 


9 38.66 


— 


0.29 


4-10. 15 


+ 10.09 


14 9 38.46:— 0.05 




10 




Mercury 


N. 


I 


57.7 0.6 


2.2 


• • 


13.0 


15.0 


19.6 


21.0 


23.8 


44 10.81 


— 


0.45 


• • 


+ 10.10 


14 44 30.46+ 0.07 




II 


6 


Ursse Minoris . 


N. 


4 


• • 


• • 


• a 


• • 


25.0 


59-3 


33-3 


42.7 


• • 


14 24.78 


+ 


3. II 


• • 


+ 10.13 


18 14 38.02 


— 0.40 




12 


a 


Lyrae .... 


N. 


5 


• • 


• • 


13.7 


16.3 


19. 1 


21.6 


24.1 


• • 


• • 


33 18.96 


— . 


0.19 


4- 10.18 


+ 10.14 


18 32 38.91 


— 0.04 




13 


6 


Draconis, (R.) . . 


N. 


3 


48.254.9 


59.1 


15. 1 


20.3 


25.5 


41.6 


45.5 


52.2 


13 30.27 


-h 


0.70 


• • 


+ 10.14 


19 13 3I.I1I— 0.10 




14 


a 


Aquilae, (R.) . . 


N. 


3 


59.8' 2.6 


3.9 


10. 1 


12.3 


14.3 


20.4 


22.0 


24.7 


44 12.23 


— 


0.13 


■ • 


+ 10.15 


19 44 22.25— 0.04 




15 


/» 


Aquilae. (R.) . . 


N. 


3 


31. 933. 3 


37.4 


39.5 


41.5 


43.6 


45.5 


49.8 


51.3 


48 41.53 


— 


0.15 


• . 


+ 10.15 


19 48 51.53— 003 




16 


r 


Aquilae .... 


N. 


3 


21. 1 23.6 


25.2 


31.4 


33.5 


35.5 


41.7 


43.4 


45.8 


57 33.47 


— 


0.34 


4-10. 17 


+ 10.15 


19 57 43.28— o.ii 


1 


17 


a« 


Capncorni . . . 


N. 


3 


23.4 


26.1 


27.6 


34.0 


36.0 


38.0 


44.5 


46.0 


48.7 


ID 36.03 


— 


0.43 


4-10. 14 


+ 10.15 


20 10 45.75 + O.OI 




18 


K 


Cephei .... 


N. 


3 


• ■ 


• • 


• • 


• • 


• • 


• • 


44-4 


51.8 


3.2 


13 7.46 


4- 


0.59 


• 


+ 10.15 


20 13 i8.2a+ 0.06 




19 


€ 


Delphini, (R.) . . 


N. 


3 


33.9 


36.6 


38.0 


• • 


• 


• • 


54.6 


56.3 


58.8 


26 46.33 


— 


O.Il 


• « 


+ 10.15 


20 36 56.37+ 0.03 




20 


a 


Cygni .... 


N. 


3 


30.7 


34.3 


36.3 


45.2 


48.0 


50.7 


59.5 


1.6 


5.1 


36 47.93 


— 


0.15 


4-10. II 


+ 10.15 


20 36 57-93,4- 0.04 




21 


a 


Cephei .... 


N. 


3 


52.3 


57.5 


0.6 


13.9 


18.3 


22.7 


35.9 


39.1 


44.2 


15 18.28 


-h 


0.03 


• • 


+ 10.16 


21 15 38.47 


+ 0.14 


1 

1 


22 


I 


Draconis, S. P. . 


N. 


1.2 


* • 


• ■ 


20.6 


5.9 


51.6 


36.6 


23.3 


• • 


. . 


17 51.60 


— 


1.80 


• • 


+ 10.16 


9 17 5996 


— 0,40 


1 


23 


? 


Cephei .... 


N. 


3 


14.4 


21.5 


25.7 


44.150.3 


55.7 


13.8 


18.3 


257 


26 49.94 


+ 


0.24 


• ■ 


+ 10. 16 


31 37 0.34 


+ 0.2Q 




24 


e 


Pegasi .... 


N. 


2 


22.3 


24.9 


26.4 


32.634.9 


37.0 


43.0 


44.5 


47.1 


37 34.74 


— 


0.34 


4-10. 15 


+ 10.17 


21 37 44-57 


O.OOi 




25 


f^ 


Capricorni . 


N. 


2 


46.1 


48.650.2 


56.658.7 


0.7 


7.1 


8.6 


II. 3 


45 58.66 


— 


0.43 


4-10.05 


+ 10.17 


21 46 8.40+ 0.07 




26 


79 


Draconis 


N. 


3 


25.7 


34.239-4 


1.0 


7.6 


14.4 


35.6 


41. 1 


49.6 


51 7.62 


-h 


0.34 


. 


+ 10.17 


21 15 18.13 


+ 0.35 


- 


27 


a 


Aquarii, (R.) . . 


N. 


3 


40.5 


43.1 


44.5 


50.7 


52.6 


54.8 


0.9 


2.5 


5.0 


58 52.73 


— 


0.20 


• ■ 


+ 10.17 


21 59 3.70I+ O.p? 




28 





Aquarii . . . 


N. 


3 


32.5 


35.1 


36.6 


42.8 


44.8 


46.9 


53.1 


54.6 


57.2 


9 44.84 


— 


0.41 


-H10.09 


+ 10.17 


22 9 54.60,+ 0.07 




29 


9 


Draconis, S. P. . 


N. 


2 


18.8 


17.5 


II. 6 


45.1 


36.2 


28.3 


0.9 


54.3 


43.9 


23 36.29 


— 


1. 18 


• • 


+ 10.17 


10 23 45.28 


o.aj 




30 


£ 


Cephei, (R.) . . 


N. 


1.2 


• • 


• • 


• • 


• • 


52.8 


57.8 


3.0 


16.5 


22.6 


44 53.03 


-h 


0.62 


• • 


+ 10.18 


22 45 3.83 


4- 0.21 




31 


(9 


Piscium . . . 


N. 


2 


• • 


• • 


• • 


• ■ 


17.3 


19. 1 


21.6 


34.0 


46.3 


21 9-33 


— 


0.35 


4- 10. 21 


+ 10.18 


23.21 19.16 


+ 0.02 




32 


y 


Cephei, (R.) , 


N. 


3 


59-7 


II. 6 


17.5 


45.2 


54.2 


3.1 


30.0 


36.0 


47.7 


33 53.96 


4- 


1.37 


• • 


+ 10.19 


23 24 5.52 


+ 0.30 




33 


4163 Groombridge 


N. 


3 


• • 


• ■ 


8.1 


15.7 


23.3 


30.1 


38.1 


• • 


• * 


48 23.06 


-H 


0.38 


• • 


+ 10.19 


23 48 33 .631- 0.01 

W% 1 .-\ 




34 


u 


Piscium . . . 


N. 


3 


12.8 


15.4 


16.7 


23.0 


25.0 


27.0 


33.2 


34.9 


37.4 


52 25.04 


— 


0.34 


4-10.25 


+ 10.19 


23 52 34.89 


— O.OS| 




35 




Jupiter I, N. . . 


N. 


2.1 


35.8 


38.4 


39-9 


• t 


• ■ 


• • 


56.0 


57.7 


0.1 


30 47.98 


-~ 


0.37 


• • 


+ 10.20 


30 57.81 


• » 






36 




Jupiter II, S. . . 


N. 


2 


• • 


• • 


47.2 


49-3 


51.4 


53.4 


55.3 


• • 


• • 


30 51.32 


— " 


0.37 


• • 


+ 10.20 


31 I. 15 


• • 






37 


/3 


Ceti .... 


N. 


2 


37.9 


40.7 


42.2 


48.7 


50.9 


53.0 


59.5 


I.I 


3-8 


36 50.87- 


0.46 


4- 10. 16 


+ 10.20 


37 0.61 


+ 0.07' 




38 


32 


» Camelopard., S. P. 


N. 


2 


• • 


• • 


19. 1 


59.2 


39-5 


19.4 


59.6 


• • 


• • 


47 39.36- 


2.35 


■ • 


+ 10.20 


12 47 47.21 


- 7.70 




39 


32« Camelopard., S. P, 


N. 


2 


• • 


• ■ 


27.6 


7.5 


48.0 


28.0 


7.0 


• • 


• • 


47 47.62- 


2.35 


• • 


+ 10.20 


12 47 55.47 


- 0.44 




40 


e 


Piscium 


N, 


3 


46.5 


49.0 


50.5 


56.8 


58.9 


0.9 


7.0 


8.6 


II. I 


55 58.81 


— 


0.34 


4-10.23 


+ 10.20 


56 8.67 


— o.oS 

1 




41 




Neptune . . . 


N. 


2 


23.6 


26.1 


27.6 


33.836.0 


37.8 


44.1 


45.7 


48.1 


35.87 


— 


0.35 


• • 


+ 10.20 


I 045.72 


• 1 
1 




42 1 




Polaris .... 


N. 


I 


• • 


• • 


53.5 


19.042.0 


3.5 


32.0 


• • 


• • 


II 42.30 


+ 


8.08 


• • 


+ 10.20 


I 12 0.58+ 3.15' 




43 


6 


Geminorum . 


N. 


3 


53.1 


55.7 


57.0 


4.1 


6.4 


8.5 


15.2 


16,9 


19.6 


12 6.28 


— 


0.28 


4-10.27 4-10.26 


7 12 16.26— 0.04 




44 




Uranus . . 


N. 


3 


12. 1 


14.9 


16.4 


23.0 


25.4 


27.5 


34.1 


36.0 


38.5 


15 25.32 


— 


0.28 


. . 4-10.26 


7 15 35.30 


• 




45 


a 


Canis Minoris 


N. 


2 


• < 


• • 


• • 


39.8 


42.9 


43-9 


45.0 


46.1 


52.0 


32 15.22 


— 


0.35 


4-10.30 


+ 10.27 


7 32 25.14 


— 0.05 




46 


? 


Geminorum 


N. 


2 


52.1 


55.0 


1.3 


3.6 


6.0 


8.2 


10.7 


16.9 


19.6 


37 5.93 


-^ 


0.25 


4-10.30 


+ 10.27 


7 37 15.95 


— 0.03 




47 


1 


Venus II, S. . . 


F. 


2 


3.3 


5.8 


7.2 


13.6 


15.7 


17.8 


24.0 


25.4 


28.1 


28 15.66 


— 


0.34 


• • 


+ 10.25 


10 28 25.57 


— 0.69 


«3 


48 




Sun I, S. . 


F. 


• • 


46.3 


48.3 


50.3 


56.5 


58.8 


0.7 


6.8 


8.5 


10.8 


14 58.56 


— 


0.43 


• • 


+ 10.38 


13 15 8.41 


. .1 




!49 


1 

1 


Sun II, N; . . . 


F. 


• • 


56.5 


59.0 


0.5 


6.8 


8.9 


10.9 


17.0 


18.6 


21. 1 


17 8.81 


— 


0.43 


• • 


+ 10.28 


13 17 18.66 


• • 




f 50 


\ e 

1 


Bootis .... 


F. 


• • 


• • 


• • 


• • 


• • 


• « 


• t 


• • 


• • 


• • 


• • • 




• • 


* • 


• • 


• • • • 


* • 

















































6. Only half weight to microscope I. 
13. Bisections II-Vl. 
31. R. A. observed at set Di, VI and VII. 
32.33.38.39, Bisections at sets B and D. 
45. R. A. over set E and VII. 



OBSEBVATIOMS WrrjJ THE TBAN8IT CIBCLB. 



108 



Si 

a 

3 

7, 



Circle 
Division. 



1 

2 

3 

4 

5 
6 

7 
8 

9 

10 

II 

12 

13 

14 

15 
i6 

17 
i8 

19 

20 
21 

22 

23 

24 

25 
26 

27 

2S 

29 
30 
31 

32 
33 



4S 

49 
50 



28 54 

28 54 
336 22 

17 34 
307 28 

46 14 

46 46 

18 58 

312 14 

o 10 

208 28 

149 36 
147 10 

31 56 

51 46 
321 32 
151 56 
354 2 
336 48 

300 46 
328 52 

29 34 

52 58 
325 46 

140 6 

47 16 
295 16 
206 32 

33 10 

217 56 
325 10 



. 34 


32 42 


35 


37 16 


36 

1 


37 16 


1 37 


57 32 


38 


303 


39 


303 


1 40 


31 40 


41 


34 10 


42 


310 16 


43 


16 36 


44 


16 6 


45 


33 16 


46 


10 30 


47 


29 14 



47 8 
46 36 
II 12 



MICROSCOPE MICROMS. 



TELESCOPE MICROMETER. 







I. 


II. 


r, n 


II 


91 


4-9 


9.1 


4.9 


6.7 


4.1 


9.6 


6.1 


12 7.8 


• 6.7 


10 2.3 


0.7 


10 2.3 


0.0 


10 12.5 


10.2 


6.7 


4.7 


10.3 


7.9 


5.3 


6.9 


6.8 


6.7 


8.0 


7.6 


8.1 


5.9 


9.6 


8.2 


7.8 


5.2 


6.7 


5.2 


10. 


6.1 


5.6 


3.9 


4.8 


2.9 


7.7 


5.7 


8.9 


7.0 


6.9 


4-9 


7.5 


5.7 


6.4 


6.6 


9-7 


7.2 


6.3 


4.7 


6.9 


8.0 


8.8 


6.4 


4.3 


5.3 


7.7 


5.6 


10. 1 


8.0 


II. 2 


8.6 


10.7 


8.0 


8.2 


6.5 


6.8 


4.8 


6.8 


4.8 


10 17.8 


16.7 


14.5 


12.5 


10 21.3 


20.5 


8.7 


5-3 


9.8 


7.1 


7.1 


5.0 


8.2 


6.2 


4.9 


0.2 


8.8 


6.0 


9.5 


6.3 


6.5 


3.5 



III. 



II 

0.2 
0.2 
0.8 

1.5 

2.8 

25.4 
24.8 

4.8 

1.2 

3-4 

1.7 
0.6 

1.2 

29.2 

1.8 

1.4 

29.5 

1.9 

29.6 

28.3 
1.8 
0.7 

28.7 

1.5 

0.2 

0.8 
0.0 

2.7 
0.6 

0.5 
2.0 

1.3 
2.6 

2.3 

29.8 

0.3 

0.3 
9.9 

5.9 
16.0 

I.O 

2.7 
0.3 

2.6 

28.2 

5 8 
2.5 
0.3 



IV. 



3.0 
3.0 

1.9 
4.2 

5.9 

26.5 
26.3 

7.5 
1.8 

4.8 
0.7 

1.4 

1.7 
2.6 

4.9 

4.5 

1.3 

3.4 
1.0 

1.0 
3.8 
3.8 
1.6 
4.0 

1.4 
4.4 
3.4 
2.5 
3.7 

0.1 
4.4 

5.2 

5.5 
5.2 

3.2 
4.0 
4.0 
12.0 
9.4 

17.2 

3.5 
5.1 
2.6 

4.2 
29.2 

5.3 

5-4 
1.6 



Rev. 



23 

25 
21 
20 

25 

23 
23 
27 

23 

25 
22 

29 
31 
30 

26 
26 
28 
28 

23 

27 
28 

29 
22 

26 

23 

28 

28 
20 

25 

24 

25 
28 

29 
26 

29 
27 

28 

30 
27 

29 
22 
22 

25 
26 

27 

21 
21 

25 



I. 



865 



840 



620 
956 

• • 

190 
490 

306 



845 
720 

954 



102 

715 
080 



786 
115 



595 

730 

495 
810 



210 
020 
187 
612 
312 

180 

874 



960 

683 

295 



2. 



142 
310 



801 



025 



555 
950 
065 
120 
425 

277 



869 

713 
984 

060 
152 
520 

045 

898 



285 
500 



692 
741- 



745 



165 
971 
284 
550 
316 

200 

845 



889 
694 

361 



3. 



725 



100 



840 



470 



125 

875 



4. 



925 
160 

466 
720 



348 

858 



425 
864 

995 
022 
240 

142 
830 

745 
600 



060 
072 

434 

944 
820 

806 
605 
186 

455 
675 

575 
742 



560 

"5 
962 

185 
460 
128 

251 

• • 

722 



765 
526 



516 

688 



5. 



641 

358 
670 



244 



815 

385 
830 

• • 

032 
305 

075 

701 
615 



III 
492 
935 



819 
585 

035 
250 



547 
729 

316 



508 

029 
988 
105 
382 
no 

232 

ft • 

742 

645 
652 

356 



472 
653 



^ d 
o 

C o 



»/ 



9 
9 
9 
9 



9 
9 



9 
9 
9 
9 
9 

9 
9 
9 
9 
9 

9 
9 
9 
9 
9 

9 
9 
9 
9 
9 

9 
9 
9 
9 
9 

9 
9 
9 
9 
9 

9 
9 
9 
9 

9 

2 

2 

2 
2 



Apparent 
Zenith Dis- 
tance, South. 



28 57 58.1 

28 57 38.4 
336 26 37.0 

17 38 46.1 

307 31 24.1 

46 18 3.0 

46 50 8.3 
19 I 3.9 

312 17 56.7 

o 13 28.5 
208 32 10.2 
149 38 36.6 

147 12 4.3 
31 58 16.2 

51 49 17.6 

321 35 9-4 
151 58 40.9 

354 4 41.3 
336 51 57.5 

300 49 8.6 
328 54 50.1 

29 36 27.7 
53 2 24.9 

325 49 9.2 

140 9 56.6 

47 18 40.0 
295 18 48.2 
206 36 45.9 

33 13 27.0 

217 59 45.6 
325 13 26.3 

32 44 44.0 
37 18 23.2 

37 19 IO-7 

57 34 34.4 

303 3 7.3 

303 2 48.8 

31 42 4.0 

34 12 57.8 

310 18 19.3 
16 40 10. I 
16 10 9.9 

33 19 27.4 

10 33 9.4 
29 17 2.7 

47 12 33.6 
46 40 28.6 

11 15 28.5 



I 

6 
o 

* u 

S 



531 
soo 



448 



450 
436 

462 



Refraction, 






509 



537 



551 



558 

■ « 

576 

• • 

578 

• • 

588 

« • 

592 



598 

• • 

649 

• ft 

640 
572 

486 

• • 

463 



+ 



+ 



// 



32.0 
32.0 
25.0 
18.2 



- I 13.7 

+ 59.1 
-h I 0.4 

-h 19.5 

— 1 2.3 



0.2 

31. 1 
33.7 
36.9 
35-9 

I 13.2 

45.7 
30.8 

5.8 
24.8 



— I 

+ 
+ I 



+ I 

— 2 

+ 

+ 
-h 
-h 

+ I 

— I 

— I 



— I 

4- 



37.0 
35.0 

33.0 
17. 1 

39-5 

48.5 

3.1 

2.8 

29.3 
38.3 

45.7 
40.7 

37.7 
44.6 
44.6 

31.9 
29.9 

29.9 

36.2 

39-9 

9.1 
17.8 
17.2 

39.0 
II. I 

32.7 



-h I 1.7 
-i- I 0.6 

-h II. 3 



Apparent N. 
P. Distance. 



// 



80 4 51 

80 4 31 

27 32.33 
68 45 25 

358 36 31 

97 25 23 

97 57 29 
70 7 44 

3 23 15 

51 19 49 
22 33 39 

81 28 18 

83 54 53 

83 5 13 

102 56 52 

12 40 44 

79 8 II 
45 10 56 
27 57 53 

351 53 52 
20 o 36 

80 43 21 
104 10 3 

16 54 50 

90 57 13 

98 26 4 

346 23 6 
24 29 6 

84 20 26 

13 5 49 
16 19 6 

84 51 42 
88 25 29 
88 26 16 

108 42 2f7 
354 7 58 
354 7 40 

82 49 I 

85 19 58 

I 23 31 

67 46 49 
67 16 48 
84 36 27 

61 39 41 
80 23 56 

98 19 56 

97 47 50 

62 22 I 



g-2 

*"" o 



It 



.3 


- 5. 


.6 


- 5. 


.2 


— 0. 


.5 


-H 3. 


.6 


-f I. 


•3 


- 6. 


.9 


- 6. 


.6 


-f 2. 


.6 


— 0. 


•9 


-4- I. 


•9 


- 4. 


.3 


— 0. 


.8 


— 0. 


.3 


-♦- I. 


.0 


-f I. 


•9 


-h 0. 


.1 


— 2. 


.7 


+ 2. 


•9 


-h I. 


.8 


+ 0. 


•3 


0. 


.9 


+ I. 


.2 


+ I. 


•9 


H- I. 


.1 


— I. 


.3 


+ 0. 


.6 


+ 2. 


.0 


- 3. 


•5 


+ I. 


1-9 


- 3. 


1.8 


-h 0. 


■9 


— 0. 


.0 


— I. 


.5 


— I. 


.5 


— 0. 


.6 


+ 22. 


.1 


+ 3. 


.4 


+ I. 


•9 


— 0. 


.4 


+ I. 


.1 


0. 


.3 


— 0. 


.6 


+ I. 


.7 


+ I. 


.6 


- 5. 


.5 


- 6. 


..4 


- 6. 


.0 


-h 0. 



3 

3 
I 



I 

4 

9 

8 

4 

2 

7 

9 

9 
I 

5 
o 

I 

7 
3 

9 

8 

3 
6 

6 

I 

3 
7 
3 
3 

8 

5 

5 
o 

2 

o 
o 
I 

2 

o 

2 

5 
4 
3 



No. 



2 

II 



Barom. 



in. 
30.206 

30.173 



External 
Therm. 



58.2 
65.1 



Attached 
Therm. 



59.3 
62.0 



For summary of the elements of reduction see page 3. 



No. 



MOON* 



Parallax. 



// 



Semi-diam. 



// 



104 



OBSERVATIONS WITH THE TfiAKSIT CIRCLE. 



DATE. 



1868. 
Oct. 13 



16 



17 



.0 

a 

3 



I 

2 

3 
4 
5 

6 

7 
8 

9 
10 

II 
12 

13 
14 
15 

16 

17 

18 

19 
20 

21 
22 
23 
24 

25 
26 

27 

28 

29 
30 

31 
32 
33 

34 

35 
36 

37 
38 

39 
40 

41 
42 

43 

44 

45 
46 

47 

48 
49 



OBJECT. 



a Serpentis . 

a Scorpii . 

6 Ursae Minoris 

a Lyrae 

67 Piazzi, S. P. 

y Aquilae, (R.) 

li Aquilac, (R.) 

T Aquilse 

K Cephei . 

e Delphini, (R.) 

a Cephei, (R.) 
Cephei, (R.) 
II Cephei . 
79 Draconis 
X Aquarii 

a Pegasi . 
•y Cephei, (R.) 
4163 Groombridge 

upiter I, N. 

upiter II, S. 



J: 



}3 Ceti .... 

32(Camelopard., S. P. 

32* Camelopard., S. P. 

Polaris . 



P Aquilae, (R.) 

A Ursae Minoris 

K Cephei . 

e Delphini, (R.) 

a Cygni . 

fi Aquarii 

V Cygni . 

a Cephei, (R.) 

/3 Cephei, (R.) 

II Cephei . 
79 Draconis . 

Aquarii 
226 Cephei . 

A Aquarii 



y Cephei . 
a Andromedae 
12 Canum Venat 
Polaris, S. P. 

Sun I, S. . 

Sun II, N. . 

Mercury, (center) . 
a Coronae Boreal is . 
a Serpentis . 

S Ursae Minoris 
67 Piazzi, S. P. . . 



4) 
t 

O 



F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 
F. 




SECONDS OF TRANSITS OVER WIRES. 



3 

4 




CORRECTIONS. 



VI. VII. VIII IX. Mean wire 



26.928.5 32.634.6 



36.638.640.845.046.5 



Inst. 



Clock 
appar'nt. 



56.759.5 1.2 8. o'lo. 412. 619. 621. 324. 2 
14. 049. 5J25. 058. 533.0 



3.0 6.4 8.2,16.2 
,34.427.7,23.3. 6.5 



3 

2 

3 

3 

2 

3.2 
2 



18. 8 21. 3 29. 031. 034. 4 
o.9!55-238. 434. 027.0 



38. 140. 742. 248. 3. 50. 452. 658. 8_ 0.1; 3.0' 

29.03I.733.039-3 
21. 023. 525. 1 31.0 



4i.2|43.349-5'5i.253.7 



48.0-57.4 

I . . I . . 



14.722.3 

• • • • 

24.026.5 



3 
3 



3 
3 
3 
3 



3 
3 



51.4 
7.4 

• • 

37.8 



33.4135.241.5 
7. 415. 825. 1 



43.145.7 



m. s. 

38 36.68: 
21 10.39I 

14 24.14 
32 18.70 

17 0.87 

39 50.47 
48 4^.32 
57 33.28 



s. s. 

0.36 -H 10. 24 
0.52 -I-10.32 
4.00; . . 
0.17 +10.40 
1.04I . . 



— 0.16 

— 0.19 

— 0.35' 



10.34 



13 6.744- 0.79 



8. 613. 1 17. 321. 726. 1 

. . '42.643.7 54. 4| 0.5 
26.9I45.1 51.8 57.7 16. 0I20. 928. 5 
53.2, 0.2 . . 14. 021. 3' . . . . 
28.0' 34. 3 36. 3 38. 3 44. 4 46. 2 48. 5 



15 17.36+ 0.51 
26 48.59'+ 0.84 
39 51.54+ o.37i 



54.055. 

35. 
8. 

II. 

18. 



28.4 



32.9 

29.7 
II. 2 

50.3 
50.7 
19.4 



9-7 

• • 

40.3 



044 



9 4.0 
053.3 



42. 

18. 
27. 
. . 50. 



5,15.3 

3; . . 
820 



31.0 

35.7 

33.1 

13.7 

53.7 
56.0 



046, 

858. 

8| 7. 
015, 



32.4 

• • 

48.1 
36.8 



•9 

4 

4 

2 

o 



36.5 

• • 

57.6 
41.3 



35.3440 



15.2 
55.6 
59.2 
23.o'36.2 



21.3 

3.9 
12.5 

42.0 



22.7 

• • 

22.9 
50.6 

38.0 

38.5 
6.5 



6.012.4,14.0 
1.7I11.6 
30.0 



24.8 



37.0 . 

27.929 

26.9 . 



F. 
F. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 



24.1 32.938.059.5 
41.9 



1.8 



12.9 
23.9 



40.9 

51.8 

• • 

41.4 
23.5 



34.4 



12.8 



17.734.2 



36.2 
16.0I17.4 



27.3 



29.3 



43.444.951.3 
54.4*56.0 2.2 



44-5 
24.4 



47.1 

23.4 

6.4 

17.0 

48.5 



6.5 



54.959.2 



0.9 



59.0 10.016.0 



40.5 
II. o 



49.0 



15.925.4 
49-7 53.6 



50.1 
25.6 



58.3 
31.8 



9.2 17.0 
21.4I34.4 
54-2 0.0 



13.3 



50.3 
6.0 

• « 

55.0 

0.7 
33.4 
19.3 
37.7 

I2!l 



16.6! 



31.8 



3.5 



58.0 



+ 0.48' 



0.43+10.37 



51 7.18 

45 36.28 



58 3.97- 0.32+10.37 
33 53.12;+ 1.43" . • 
48 22.70+ 0.52, . . 
30 19.58— 0.38, . . 
30 22.86—0.38 . . 



Clock ] 
adopted.] 



Apparent R. , z=Z 
Ascension. t 'd 






s. 
+ 10.31 
+ 10.31 
+ 10.33 
+ 10.34 
+ 10.34 

+ 10.35 
+ 10.35 
+ 10.35 
+ 10.35 



h. m. 

15 38 

16 21 
18 14 

18 32 

7 17 

19 40 
19 48 

19 57 

20 13 



s. s. 
46.63 + 0.0: 
20.16 + O.OI 

38.47+ 0.44 

28.87 — o.c/. 

' I 

10.17— o.yj 

0.66— 0.04 

51.48 0.00 

43.28 — o.o^ 

17.88 — 0.16 



+ 10.36 j 21 15 28.23— 00^ 
+ 10.36 21 26 59.79— 0.22 
+ 10.37 21 40 2.28'- O.IO 

+ 10.37 21 51 18.03,+ 0-3? 

+ 10.37 21 45 46.22 + 0.06 



50.62 — 0.49+10.43 
38.35- 3.45' . . 

47.25- 3451 • . 



36 
47 
47 
II 36.57 +*o.i7. 



52.8 48 40.59 
25.0, 55 34.48 



— 0.16 
+ 9-99 



4.1 

35.9 
22.6 

42.8 

16.7 



13 6.70+ 0.53 
26 45.351— 0.12 



36 46.93— 0.16 + 11. 01 

45 23.50,- 0.42I + 10.95 

52 6.44 — o.i9| 

15 16.87 + 0.49 

26 48.01'+ 0.78 



44.046.1,52.2,53.8 
42. 851. 159. 3 7.5 



44.2 
26.2 



46.1 
27.7 



54-1 
26.8 

39-5 



53.2 
4.3 



2.8 12. 1 
28.8136.2 
44.8150. 2 



37.7 



15.720.427.7 39 50.91 + 0.22 

34.5139.848.6, 51 6.36'+ 0.31 

56.3. 9 43-98;- 0.40. 

. , 29 50.81 + 0.41. 



I 



10.89 



40.7 



52.2.55.3; 
36. 021. 019. 034.0 



55-4 1.5 
6.4 12.6 



52.955.257.5 



3.1 
14. 1 



4.3 6.2 



33.835.938.144.145.6 



49.0 
27.423.4 6.2 



24.5 
0.4 



55.2 



32.0 
38.1 



33.5 



6.0 
16.8 

• • 

9.0 
48.3 



33 53.941+ 0.48 

I 26.771— 0.26 

49 39.66:— 0.23 

II 58.15- 5.94 



29 53.30 

32 4.29 

• • • 

28 55.20 

37 35.91 

14 23.77 

26.9, 17 0.61 



— 0.42 

— 0.42 

■ • 

— 0.28 

— 0.36 

+ 1.99 

— 0.67 



+ 10.90 
+ 11. 17 



+ 11.05 
+ 10.98 



+ 10.38 
+ 10.39 
+ 10.39 
+ 10.40 
+ 10.40 

+ 10.40 
+ 10.40 
+ 10.40 
+ 10.40 

+ 10.89 
+ 10.89 
+ 10.90 
+ 10.90 

+ 10.90 
+ 10.90 
+ 10.90 
+ 10.90 
+ 10.90 

+ 10.91 
+ 10.91 
+ 10.91 
+ 10.91 



22 58 14.03 

23 34 4.94 

23 48 33.61 
o 30 29.60. 
o 30 32.88, 



0.02 
0.2; 

cot 



37 0. 53: 


0.00 


" 47 45.30- 


9.64 


12 47 54.20- 


0.74 


I II 57.14- 


0.25 



+ 10.92 
+ 10.92 
+ 10.96 
+10.97 

+10.97 
+10.97 

• • 

+ 10.98 
+ 10.98 

+ 11. 01 

+11. 01 



19 48 51.32 — O.II 

19 55 55.36,- 2.03 

20 13 18.13+ 0.40 
20 26 56.13!— 0.14, 

I I 

20 36 57.67.- o.ii 

20 45 33.98 - 0.03 

20 52 17.151— o.oi 

21 15 28.261+ o.oq 
21 16 59.69— 0.14 



21 40 2.04— 0.17 

21 51 17.58+ 0.07 

22 9 54.49+ O.OI 
22 30 2.13— 0.2:^ 



23 34 5.34+ 0.29 
o I 37.43+ 0.02 

12 49 50.39- 0.20 
I 12 3.18+ 5.66 



13 30 3.85 
13 32 14.84 



15 29 5.90- 0.07 

15 37 46.53 0.00 

\ 

18 14 36.77+ 0.27 

7 17 10.95+ O.II 



2. Seems i rev. wrong. 
9. II. 12. 14. 17. 18.22.23.27.37.39. Bisections at sets Band D. 

25 . 32. Wire B used. 

26. Observed at wire Cs and set D. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



105 



U 
V 



B 

3 



Circle 
Division. 



I 

2 

3 
4 
5 

6 

7 

8 

9 

10 

II 

12 

13 
U 
15 

i6 

17 

iS 

19 
20 

21 
22 

23 
24 

25 
26 

27 I 

2S , 

I 

29 

30 
31 
32 

33 

34 

35 
36 

37 
33 

39 
40 

41 
42 

43 

44 ! 

45 ■ 

46 1 

47 I 

48 ' 
49 



•? I 



64 56 

312 14 

o 10 



151 22 
147 10 

31 34 
321 32 
151 56 

203 6 
211 2 
328 8 
325 46 

47 6 

24 20 

217 56 

325 10 

37 18 

37 18 

57 32 
303 o 
303 o 
310 14 

147 10 

309 56 
321 32 

151 56 

354 2 

48 18 
358 10 
203 6 
211 2 

328 8 
325 46 

47 16 
323 18 

47 6 

321 56 
10 28 



MICROSCOPE MICROMS. 



48 38 
48 6 

59 14 
II 40 

31 58 



287 36 



TELESCOPE MICROMETER. 



I. 



r. 



// 



9 22.5 

8.4 
13.6 



10 



2.1 

7.3 
0.6 

4.7 
5.2 

2.2 

3.5 
0.4 

3-5 
8.1 

3.8 
4.0 
8.6 
8.0 
8.0 



5.9 
0.9 

9.9 
9 28.5 

7.9 
9.2 

4.8 

8.1 

9.1 
4.0 

12.6 
10 14.0 

29.4 

12. 1 
10 1.5 
10 14.6 

3.4 
10.2 



II. 



// 



18.5 

5.8 

10. o 



6.9 
II. 4 



2.5 
4.6 

9-5 
7.8 
9.4 



II. o 



I.I 

6.3 
28.1 

3.1 
3.8 

3.0 

4.9 
28.0 

1.9 
6.7 

1.2 

3.7 
6.8 

5.4 
5.4 

3.9 
28.0 

28.0 

26.8 

7.5 
8.0 

3.2 
7.4 

7.0 

3.5 
10. 1 

13-6 
i.i 

11. 

0.6 

14. 1 
2.3 
9.3 

4.7 
9-5 



1.5 
1.9 

6.7 

5.3 
6.1 



9.3 



III. 



IV. 



// 



15.5 
4-3 
7.4 



25.2 
0.1 
22.3 
29.4 
26.2 

28.1 
29.5 

25.5 
28.6 

1.7 

25.8 
29.1 

3.4 
0.0 

0.0 

27.6 
24.9 
24.9 
23.1 

i.o 

5.5 
29.2 

1-5 

3.0 
27.4 

5.4 

8.7 
26.4 

7.5 
26.3 

8.2 

29.1 

4.0 

1.5 

5.5 



27.3 
27.8 

2.4 

1.8 

1.5 



5.8 



// 



14.8 
3.6 
7.6 



25.8 
0.4 

24.3 
1.2 

28.6 

28.7 
0.9 

27.0 
I.I 
4.0 

28.7 
0.0 
5.6 
3.3 
3-3 

0.8 
27.3 

27.3 
25.6 

2.6 

7-3 
1.5 
2.6 

5.2 
0.0 

8.2 

8.7 
26.1 

8.3 
28.4 

10.4 

1.5 
6.5 

3.5 
6.9 



28.5 

29.4 
4.0 

2.4 
3.6 



7.2 



Rev. 



24 
23 
25 



28 

31 
23 

27 

29 

30 
26 
26 

27 
26 

27 
24 

25 
26 
22 

29 
27 

28 

22 

21 

25 

27 

28 

28 
28 

24 
20 

26 

25 
27 

28 

27 
26 

22 
25 



I. 



720 
322 
429 



032 
025 



950 



135 
144 

727 
320 

• • 

654 
211 



208 



999 
142 

■ ■ 

040 



072 
540 



2. 



3. 



633 
574 
379 



638 



131 
042 

122 

071 

198 



012 
092 
650 

236 

635 
652 

894 



151 



931 
250 

• • 

058 



692 

133 
850 

508 



984 



050 



4. 



650 
562 
206 



135 
926 

946 

021 

852 

130 
611 
005 

875 
532 

125 

548 
552 



5. 



606 
607 
189 



856 

123 

447 

688 

803 

332 
191 
010 



27 

27 

23 

25 
22 



22 



305 
633 



450 
510 



474 
468 



340 



720 
130 
150 



450 



436 
736 
500 
508 
618 

010 
272 
017 
005 



942 

lOI 



145 

869 
188 
470 

182 

606 



793 
082 



528 
508 



564 



998 
624 

960 
073 



468 



070 
308 
018 

573 

418 
780 



625 

092 

370 
910 
001 

195 
536 



S B 

o o 



«G 



N 



// 



14.2 
14.2 
14.2 



968 
444 



14.2 
14.2 
14.2 
14.2 
14.2 

14.2 
14.2 
14.2 
14.2 
14.2 

14.2 
14.2 
14.2 
14.2 
14. 2 

14.2 
14.2 
14.2 
14.2 

12.7 
12.7 
12.7 
12.7 

12.7 
12.7 
12.7 
12.7 
12.7 

12.7 
12.7 
12.7 
12.7 
12.7 

12.7 
12.7 



Apparent 
Zenith Dis- 
tance, South. 



// 



64 59 59-7 
312 17 59.4 

o 13 28.7 



151 

147 

31 

321 

151 



24 55-1 
12 6.7 

58 17.0 

35 9-0 
58 40.8 



13 
13 
13 
13 
13 



7 
7 
7 

7 



13.7 



203 8 8.4 
211 5 15.0 
328 II 31.0 

325 49 9-7 

47 9 12.9 

24 23 8.9 

217 59 46.9 
325 13 27.2 

37 21 23.3 

37 22 10.6 

57 34 36.9 
303 3 6.7 
303 2 47.1 
310 18 18.3 

147 12 5.1 

309 59 32.7 

321 35 8.0 

151 58 40.0 

354 4 41.2 

48 20 54.9 

358 13 37.2 
203 8 8. 9 

2" 5 15.4 

328 II 31.0 

325 49 7.0 

47 18 42.7 

323 21 8.7 

47 9 14.3 

322 o 14.7 
10 31 25.4 



48 41 6.3 
48 8 53.9 
59 17 58.0 
II 43 37.2 
32 2 21.0 



287 40 II. I 



B 
o 

at; 
s 

CD 



444 
472 

• • 

502 



513 



534 
546 



Refraction. 



// 



-h 2 
— I 



552 



516 



524 



4- 



-h I 

+ 



0.9 
2.6 
0.2 



31-3 
37.1 
35.9 
45.7 
30.8 

24.8 
35.0 
36.0 

39-4 
2.6 

26.3 

45.3 
40.3 
44.3 
44.3 



-h I 31-2 

— I 29.0 

— I 29.0 

— I 8.4 

— 37.1 

— I 8.4 

- 45-7 

- 30.7 



+ I 
536 - 



550 



546 



550 



+ 



6.0 

4.9 

1.8 

24.8 
350 



-h 



630 
620 
617 
618 



670 



4- 



36.0 

39.4 
I 2.8 

43.1 
I 2.5 

45.3 
10.8 



4- 
+ 
4- 



I 
I 
I 



7.2 
6.0 

39-0 
12.2 

36.9 



- 3 5.4 



Apparent N. 
P. Distance. 



// 



(A 



W 



.-* c 

G O 

(A ^ 

"* o 



// 



116 8 21.8 

3 23 18.0 

51 19 50.1 



79 41 57.4 
83 54 51.6 

83 5 14. I 

12 40 44.5 

79 8 II. 2 

27 57 48.0 
20 o 31.2 

19 17 16.2 

16 54 51.5 

98 16 36.7 

75 29 56.4 

13 5 490 
16 19 8.1 

88 28 28.8 

88 29 16. I 

108 42 29.3 
354 7 58.9 

354 7 39-3 
I 23 31. I 

83 54 53.2 

I 4 45.5 

12 40 43.5 

79 8 II. 9 

45 10 56.4 

99 28 21.0 
49 19 56.6 

28 57 47.5 

20 o 30.8 

19 17 16.2 

16 54 48.8 

98 26 6.7 

14 26 46.8 
98 16 38.0 

13 5 50-6 
61 37 57.4 



99 48 34.7 
99 16 21. I 
no 25 58.2 
62 50 10.6 
83 9 19. I 



338 43 26.9 



+14.9 
-h 1.6 

-H 1.3 



- 3.2 

- 3.0 
+ 2.2 
4- 0.4 

- 2.8 

- 4.7 

- 4.9 

4- 0.5 
-h 2.2 
4- 2.4 

4- 4.7 

- 4.7 
4- 1.9 

- 1.3 

- 1.3 

4- 2.4 
4-22.1 
4- 2.5 
4- 1.9 

- 1.5 
-I- 1.3 

- 0.3 

- 2.1 

4- 2.9 
4- 2.1 

4- 3.7 

- 4.6 

- 4.8 

4- 1.2 
-h 0.2 
4- 2.9 
4- 1.8 
4- 3.6 

- 1.0 
4- 1.4 



6.6 
6.6 
8.2 
1.0 
1.8 



4- 3.4 



No. 



Barom. 



10. 



External 
Therm. 



Attached 
Therm. 



for summary of the elements of reduction see page 3. 



No. 



MOON'S— 



Parallax. 



I II 



Semi-diam. 



/ /' 



14 



106 



0BSESVATI0K8 WITH THE TRANSIT CIBCLE. 





• 






• 


t 


SECONDS OF TRANSITS OVER WIRES. CORRECTIONS. 




C r\ 


DATE. 


B 

9 




OBJECT. 


l 

.a 



• 






Apparent R. ^'9 


I. 


II. 


in. 


IV. 


V. 


VI. 


VII. 


VIII 


IX. 


r 

Mean wire.| Inst. 


Clock 
appar'nt. 


Clock 

adopted. 

1 


Ascension. 




1868. 










m. s. s. 


s. 


s. 


h. m. s. s. 


Oct. 17 


I 


a 


Aquilae, (R.) . . 


T. 


. .59. c 


► 1.5 


2.9 


9.6 


II. 4 


13.3 


19.7 


21.2 


• • 


44 II 37 — 0.18, . . 


+ 11.02 


19 44 22.21 + O.OI 




2 


T 


AquilsB .... 


T. 


. ,20.4 


22.8 


24.4 


30.7 


32.6I34.6.40.8 


42.5 


45.0 


57 32.64— 0.36+10. 91 


+ 11. 02 


19 57 43-30+ 0.02 




3 


a 


Aquarii . . .. 


T. 


. 140.0 


•42.4 


43.9 


50.1 


52.1 


54.0] 0.2 


1.7 


4.3 


58 52.08— 0.401-H10.92 


+ 11.03 


21 59 2JBUM.1U 




4 


32 


\ Ursac Majoris, S. P. 


T. 


. '44.3 


37.8 


34.4 


19.3 


14.5 


9.6,54.6 


50.7'44.5 


8 14.41 — o.5<3 


1 . . ,+11.04 


10 8 24.^Ko.r^ 




5 


9 


Draconis, S. P. . 


T. 


. 27.3 


16.4 


10.5 


44.3 


35.3 


26.8 


1.3 


54.6 


43.6 


23 35-57— 0-86; . . ;H-II.04 

1 1 


10 23 45.7^^0.08 




6 


c 


Pegasi, (R.) . . 


T. 




32.2 


34.7 


36.2 


• • 


• • 


• • 


53.1 


54.4 


57.1 


34 44.62- 0.17 


■ • 


+ 11.04 


22 34 55.49+ 0.17 




7 


I 


Cephei .... 


T. 




• 


• • 


• ■ 


• • 


« ft 


• • 


• • 


• • 


• • 




• 


• a 


• « m • * , , 




8 


a 


Pegasi .... 


T. 




50.8 


53-6 


55.0 


1.4 


3.5 


5.6 


II. 9 


13.4 


15. g 


58 3.46- 0.33 


+ 10.86 


+ 11.04 


22 58 i4.i7-»- 0.14 




9 





Cephei .... 


T. 




35.2'42.o 


45.6 


1.7 


7.2 


12.4 


18.3 


22.5 


29.1 


13 7. II -f- O.OI 


• • 


+ 11.04 


23 13 18.16+ 0.15 




10 


e 


Piscium . . . 


T. 


. 56.2 


590 


0.4 


6.4 


8.5 


10.5 


16.7 


18.3 


21. G 


21 8.56— 0.36 

1 


+ 10.96 


+ 11.04 


23 21 19.24 H- 0.15 




II 

• 


7 


Cephei .... 


T. 




0.5 


11.4 


17.9 


45.2 


54.3 


2.7 


30.5 


37.5 


48.4 


33 54.27 -+- 0.27 


• • 


+ 11.05 


23 34 5.59 i- 0.5^ 




12 




Jupiter I, S. . 


T. 




16.6 


19.5 


20.7 


• • 


• ■ 


• • 


37.3 


38.7 


41.4 


28 29.03 — 0.38 


• • 


+ 11.05 


28 39.70 . . 




13 




Jupiter II, N. . . 


T. 




• • 


• • 


28.5 


30.4 


32.4 


34.436.5 


• • 


• • 


28 32.44— 038 


• • 


+ 11.05 


28 43.11 . . 




14 


? 


Ceti .... 


T. 


. i37.i 


39-7141.3 


47.9!50.o 


52.258.8 


0.2 


3.1 


36 50.03 -H o.46;-hii.oo 


+ 11.05 


37 0.62 -»- 0.0? 




15 




Anonjrmous . . 


T. 




34.0 


36.1 


37.8 


43.8 


45.948. i|54. 1 


56.0 


58.4 


56 46.02 — 0.38 


• • 


+ 11.06 


56 56.70+ 3,17 




16 




Neptune . . . 


T. 




52.0 


54.6 


56.2 


2.4 


4.3 


6.3 


12.3 


14.0 


16.6 


4.30- 0-37 


• • 


+ 11.06 


I 14.99 . • 




17 




Polaris .... 


T. 




• • 


■ • 


57.0.24.0 


47.0 


8.0 


34.0 


• • 


• ■ 


II 46.30-1- 5.32 


• • 


+ 11.06 


I 12 2.68 + 5. II 




18 




Uranus . . . 


T. 




19.6 


22.4 


23.9 


30.8 


33.0 


35.2:41.7 


43.3 


46.2 


15 32.90— 0.30 


• • 


+ 11. II 


7 15 43.71 




19 


a 


Geminorum . 


T. 




47.2 


50.2 


52.1 


59.2 


1.7 


4.1 II. 2 


I3-I 


16.2 


26 1.67 — 0.25 


+ 11. 13 


+ 11. II 


7 26 12.53 + o.iS 




20 


a 


Canis Minoris 


T. 




2.2 


4.7 


6.1 


12.5 


14.4 


16.422.5 


24.1 


26.7 


32 14.40— 0.36+11.31 


+ 11. II 


7 32 25.15 — 0.22 




21 ^ 


Geminorum 


T. 




51.3 


54.3 


56.0 


3.0 


5.4 


7.514.5 


16.2 


19.3 


1 
37 5.28— 0.28+11.17 


+ 11. II 


7 37 16. II — O.O^j 




22 


k 


Ursac Minoris, S. P. 


T. 




• • 


• • 


• * 


• • 


■ • 


II. 


41.0 


15.0 


2.0 


55 50.50- 7.53 

1 


• • 


+ 11. II 


19 55 54.08- 1.47 


18 


23 




Venus II, S. . 


E. 


. 27.4 


30.0 


31.4 


37.7 


39.8 


42.0 


48.1 


50.0 


52.0 


53 39-82 - 0.41 


• • 


+ H.5I 


10 53 50.92 — 0.65 




24 


6 


Leonis .... 


E. 


. 41.4 


44.1 


45.7 


52.3 


54.5 


56.6 


3.3 


4.9 


7.6 


6 54.49- 0.32+11.57 


+ 11.52 


II 7 5.69— 0.07 




25 


P 


Leonis .... 


E. 


. i56.i 


59-0 


0.4 


6.7 


9.0 


II. 


17.3 


19.0 


21.6 


42 8.90— 0.36I + 11.47 


+ 11.52 


II 42 20.06+ 0.06 




26 


7 


Ursae Majoris . 


E. 


. .19.3 


23.8 


26.3 


36.8 


40.4 


43.8 


54.5 


57.0 


1.4 


46 40.37 + 0.04 . . 


+ 11.52 


II 46 51.93 + O.II 




27 




Polaris, S. P. . . 


E. 




• • 


• • 


49.5 


27.0 


0.0 


38.5 


• • 


• B 


• • 


12 1. 55-14. 47 

1 


• • 


-+-".53 


I 11 58.61 + 0.93 


19 


28 




Sun I, N. . . - 


E. 




II. 6 


14.2 


15.7 


21.9 


24.2 


26.0 


32.3 


33.8 


36.2 


37 23.99 


— 0.52 


« • 


+ 11.53 


13 37 35.00 . . 




29 




Sun II, S. . . . 


E. 




23.0 


25.4 


27.0 


33.3 


35.2 


37-4 


43.7 


45.3 


48.0 


39 35.37- 0.53 


• • 


4-11.53 


13 39 46.371 . . 

1 


20 


30 




Venus II, S. , 


F. 


3 


42.5 


45.2 


46.7 


52.9 


55.0 


57.0 


3.2 


4.8 


7.3 


57 54.96 . . 


• • 


• . 


I 


22 


31 




Moon I, S. . . 


N. 


2 


26.6 


27.8 


29.0 


30.0 


33.5 


46.7 


49.4 


51.0 


26.5 


43 59-92- 0.66 


• ■ 


+ 11.00 


19 44 10.26+65.34 




32 


A 


Ursae Minoris 


N. 


3 


• • 


• • 


• • 


• • 


4.0 


56.0 


34.0 


52.5 


6.6 


55 18.30+18.12 


• « 


+ 11.00 


19 55 47.42 - 1.7S 




33 


a« 


Capricorni 


N. 


2 


• • 


• • 


• • 


35.2 


37.3 


39.3 


43.4 


45.0 


47.7 


10 35.13— 0. 60+11. 04 


+ 11. 01 


20 10 45.54 — 0.03 




34 


IT 


Capricorni 


N. 


3 24.5 


27.2 


28.7 


35.3 


37.439-6 


40.0 


47.7 


50.2 


19 37.40 — 0.65 +10.97 


+ 11. 01 


20 19 47.76 + 0.04 




35 


e 


Delphini . 


N. 


3 33.1 


35.7 


37.2 


43.5 


45.6 


47.6 


53.8 


55.5 


58.0 


26 45.56 


— 0.42 


+ 11.03 


+ 11. 01 


20 26 56.15 — O.OI 




36 




Venus II, S. . 


F. 


. 29.7 


32.4 


33.9 


40.0 


42.0 


44.0 


50.4 


51.9 


54.4 


10 42.08 — 0.40 


• • 


+ 12.29 


II 10 53.97 — 0.62 




37 


P 


Leonis .... 


F. 


3 


55.5 


58.0 


59.6 


6.0 


8.2 


10.2 


16.5 


18.2 


20.8 


42 8. II — 0.34 


+ 12.32 


+ 12.29 


II 42 20.06 — 0.02 




38 




Polaris, S. P. . . 


F. 


3 


• • 


• • 


43.0 


• • 


55.0 


32.0 


7.0 


• • 


• • 


II 54.78 —11.30 


• « 


+ 12.31 


I " 55.79- 1-67 

1 


23 


39 




Sun N 


F. 


• 


• ■ 


• • 


• ■ 


• • 


• • 


• • 


• • 


• • 


• • 


• • • 


• • 


• • 


* • 


1 
. . . . , . . 




40 




Sun II, S. . . . 


F. 


• 


• ■ 


• • 


43.3 


45.4 


47-4 


49.4 


53.8 


55.3 


58.2 


54 45.40 


— 0.52 


• • 


+ 12.32 


13 54 57.20—66.06 




41 


X 


Ursac Minoris . 


F. 


• 


• • 


« • 


42.0 


28.0 


22.0 


4.0 


54.0 


• « 


• • 


55 18.62 


+12.64 


• • 


+ 12.40 


19 55 43.66— 4.09 




42 




Moon I, S. . . 


F. 


• 


10.3 


13.0 


14.6 


21.4 


23.4 


25.5 


32.0 


34.0 


36.5 


35 23.41 


- 0.57 


• • 


+ 12.40 


20 35 35-24 +64.29 




43 


a 


Pegasi, (R.) 


F. 


3 


■ • 


• • 


57.4 


59-5 


1.8 


3.9 


6.0 


• • 


• • 


58 1.72— 0.24 


• • 


+ 12.44 


22 58 13.921 0.00 




44 


u 


Piscium 


F. 


. 10.5 


13. 1 


14.9 


20.8 


23.0 


24.9 


31.0 


32.7 


35.1 


52 22.89 


1 
— 0.42+12.43 


-f-i2.45 


23 52 34.921 0.00 




45 


a 


Andromedac,(R.) . 


F. 


3 


II. I 


14.2 


15.7 


23.0 


25.2 


27.4 


34.3 


36.1 


39-3 


I 25.14— 0.13 


• ■ 


+ 12.45 


I 37.46,+ o.oS 




46 




Weisse 0, 305 . . 


F. 


. < 


48.3 


50.7 


52.3 


56.2 


0.6 


4.5 


8.6 


10. 


12.7 


19 0.43- 0.43 . . 


+ 12.45 


19 12.25:+ 3.23 




47 


a 


Ceti .... 


F. 


3 


35.8 


38.6. 


40.2 


46.5- 


48.9 


51.0 


57.2 


58.9 


1-7 


36 48.76 


- 0.57+12.37 


+ 12.45 


37 0.64 + O.II 




48 


32' 


^ Camelopard., S. P. 


F. 


• 


. . 


■ • 


17.5 


57.4. 


36.8 


19.2 


• • 


• ■ 


■ • 


47 37.72- 2.79 . . 


+ 12.46 


12 47 47.39- 7.96 
1 



5. 11.22.23.48. Bisections at sets B and D. 
15.46. Wire A used. 

31. R. A. observed over sets A, B. and Ei. 
31. Bisections at wires Ds and VI. 
42. Bisections at wires II-VI. 



OB8EBVATIONS WITH THE TRANSIT CIRCLB. 



107 



I 



3 



I 

2 

3 
4 

5 

6 

7 

8 

9 

10 

II 

12 

13 
M 
15 

i6 

17 
i8 

19 
20 

21 
22 

23 

24 

25 
26 

27 

2S 
29 

30 

31 
32 

33 1 
34 

35 ; 
36' 

37 
38 

39 
40 

41 
42 

43 

44 
45 

46 

47 

4-S 



No. 



Circle 
Division. 



MICROSCOPE MICROMS. 



149 36 

31 54 

3946 

284 40 

295 16 



151 
333 

24 
331 

33 

321 

37 
37 
57 
3S 



12 
20 
20 
26 
10 

56 
28 
28 
32 
36 



TELESCOPE MICROMETER. 



I. 



34 12 



6 40 
33 16 

10 30 
307 46 

31 18 
17 36 
23 30 

344 24 
307 28 

48 50 

49 22 

31 36 

58 36 
309 56 
51 46 
57 26 
27 58 

32 46 
23 30 

3^7 28 

50 14 
50 46 

309 54 

56 54 
155 34 

32 42 
169 26 

35 36 

57 32 
303 o 



r. 



It 



7.7 
7.6 
7.8 
6.0 
9.2 

7.8 
4.8 
9.4 

7.5 
7.0 

6.5 

II. 5 
II. 5 

10.2 

12.4 



II. 



// 



6.5 

5.2 

5.5 
4.5 
6.5 

6.1 

2.7 

5.7 
5.8 

5.5 

4.3 
8.0 

8.0 

8.0 

9.3 



III. 



7.3 4.5 



7.0 
II. 8 

7.0 
4.1 

II. 6 
14.0 
14.2 

7.4 
3.0 

9 29.7 
19.0 

9.0 

10 27.8 

7.7 
10. 1 

10.4 

8.1 



3-7 
9.3 

5.4 
2.7 

9.0 

9.5 

8.8 

2.4 
0.5 

27.7 
14.8 

6.4 

25.8 

4.4 
7.6 

7.3 
3.9 



1.3 
29.3 
0.4 
2.2 
3.8 

1.8 
0.1 
1.8 
2.8 
0.1 

1.8 

5.1 
5.1 
3.0 

5.4 
29.0 



IV. 



9 


25.4 


21.7 




7.7 


3.5 




3.2 


1.4 




5.3 


2.0 




7.4 


3.9 




5.5 


2.5 


8 


7.7 


3.7 




3.6 


1.8 




5.5 


3.2 




6.9 


4.9 




9-5 


6.4 




7.1 


3.7 




4.8 


1.5 



1.4 
5.4 

2.6 

0.6 

4.7 

6.7 

6.0 
0.8 

28.3 

22.8 
10.7 

O.I 



// 

1.8 

1.4 
3.2 

4.1 
6.8 

1.5 
2.0 

4.3 
4.2 

1.7 

3.5 
6.5 
6.5 
5.2 
6.5 

1.4 



Rev. 



I. 



29 
22 

23 
27 
27 

23 
26 

27 
22 

26 

22 

21 

17 
29 

30 
23 



2.2 

6.6 

3.4 
2.0 



6.0 

7.5 
6.4 

1.4 

0.6 

22.9 
II. I 

2.7 



20.2 


23.2 


2.5 


5.5 


3.1 


5-9 


2.9 


6.3 


29.6 


3.5 


19.5 


19.7 


2.4 


3.5 


0.6 


1.9 


29.8 


1.2 


1.3 


2.7 


0.8 


3.1 


0.0 


2.2 


28.1 


29.0 


27.9 


1.9 


2.2 


1.9 


2.0 


5.7 


29.7 


3.0 


29.7 


3.3 



Barom. 



in. 



External 
Therm. 



Attached 
Therm. 



26 

25 

27 
22 

34 
28 
20 
21 
26 

30 

28 

20 

24 

25 

.26 

21 
26 

36 
30 
25 

26 

24 
17 
24 

28 

28 
29 

29 
27 



330 



2. 



056 
824 
410 
708 
906 

970 

• ■ 

180 
250 

198 

376 
022 



3. 



850 



880 



010 

375 



978 



906 



768 
874 

190 



790 
964 



484 



4. 



5. 



330 



150 
870 
060 

530 



990 



798 
702 



491 
790 

098 
947 

* • 

535 
700 



817 



964 
610 
232 

580 
866 

909 
520 
180 
910 
083 

490 



610 

441 
740 

378 



912 
550 



055 



690 



230 



470 

075 
092 

900 
064 
416 
446 



144 



650 
738 

114 
626 



240 
205 
865 
000 



218 
919 
906 



436 
743 

274 



es 

o o 



590 
660 

025 



628 



455 
046 



228 



340 
720 



498 
620 
622 



372 
918 
988 

746 

954 

402 

550 



262 
900 

940 

275 

317 
700 



361 
617 
562 



13.7 
13.7 
13.7 
13.7 
13.7 

13.7 
13.7 
13.7 
13.7 
13.7 

13.7 
13.7 
13.7 
13.7 
13.7 

13.7 



Apparent. 
Zenith Dis- 
tance, South. 



// 



149 38 36.3 
31 58 13.6 

39 50 3.4 
284 42 55.7 
295 18 50.7 

151 15 53.7 

333 23 16.5 

24 23 3.5 

331 30 22.3 

33 13 21.0 

322 o 17.9 

37 32 33.7 

37 33 26.2 
57 34 26.3 

38 40 40.0 

34 16 3.5 



S 
o 



o 



£ 



892 

389 
990 

858 
762 

257 
428 



13.7 
13.7 

13.7 
13-7 

14.0 
14.0 
14.0 
14.0 
14.0 

14.0 
14.0 

14.0 

14.0 
14.0 
14.0 
14.0 
14.0 

15.6 
15.6 
15.6 

15.6 
15.6 
15.6 
15.6 
15.6 

15.6 
15.6 
15.6 
15.6 
15.6 



6 43 12.5 
33 19 21.5 

10 33 4.7 
307 50 13.6 

31 19 4.8 

17 38 44.1 

23 34 47.2 

344 28 27.6 

307 31 25.8 

48 52 24.5 

49 24 37.3 



717 

• • 

727 
734 



743 
757 



759 
798 



801 
803 



478 



31 40 39.7 587 

58 39 19.5 630 

309 59 33. 4| 640 

51 49 14.2, . . 

57 30 24.5- . . 

28 I 21. Oj 647 

32 46 55.9 716 
23 34 45.7 710 

307 31 32.5 684 

50 17 24.1 676 

50 49 39-8 . . 

309 59 36.6 704 

56 58 41.0 714 

155 36 57.5 742 

32 44 43.1 750 

169 28 38.4 . . 

35 41 4.8 . . 

57 34 31.0 760 
303 3 7.4 . . 



Refraction. 






3 
2 






-h 



II 

35.0 

37.4 
50.4 
46.0 

7.6 

33.2 
30.4 

27.5 
32.9 
39-8 



47.4 
46.8 

46.8 

I 35.7 
48.9 



+ 41.5 






7.2 
40.4 



-h II. 2 
— I 19.2 



+ 

— I 

+ I 

H- I 



35.5 
18.6 

25.2 

16. 1 

14.9 

5.3 
6.5 



-f 36.1 

-+- I 36.8 

— I 10.6 

-I- I 15.3 
4- I 33.0 
+ 31.6 

+ 38.8 
-f 26.3 

— I 17.9 

-h I II. 9 

H- I 13.3 

— I II. 7 

-h I 32.6 
-f 27.5 



-f 



-h 



39.1 
"3 
43.7 
35.8 
33.6 



Apparent N. 
P. Distance. 



// 



81 28 19.9 

83 5 12.2 

90 57 15.0 

335 45 30.9 
346 23 4.3 

79 51 0.7 
24 29 7.3 
75 29 52.2 
22 36 10.6 

84 20 22.0 

13 5 51.7 
88 39 41.7 

88 40 34.2 
108 42 23.2 

89 47 50.1 

85 23 6.2 



57 49 40.9 
84 26 23.1 

61 39 37.1 
358 55 15.6 

82 26 1.5 
68 45 23.9 
74 41 33-6 
35 34 32.7 
358 36 32.1 

99 59 51.0 
100 32 5.0 

82 47 37.0 

109 47 17.5 

I. 4 44.0 

102 56 50.7 

108 38 18.7 

79 8 13.8 

83 53 55.9 
74 41 33.2 

358 36 35.8 



lOI 
lOI 

I 
108 



24 57.2 

57 14.3 

4 46.1 

6 34.8 



75 29 51.2 

83 51 43-4 

61 37 54.1 

86 48 9.7 

108 42 28.0 

354 7 55.0 



e o 

S u 

<J fc 
•"- o 

SO 



It 

H- 0.6 
-h 0.2 

— 0.1 
H- i.o 
-h 1.6 

— I.I 

— 1.0 
-h 0.7 

- 1.8 

- 2.8 

-h 0.4 

- 1.3 

- 1.3 

- 4.2 

— 22.2 

— 0.2 



- 3.7 

- O.I 

- 4.1 

- 0.3 

- 5.2 
-h 0.3 
-h 2.0 

0.0 

- 0.7 

- 6.6 

- 6.7 

- 5.1 



H- 0.3 

- 0.5 
4- 0.5 

- 0.3 

- 5.2 
+ 0.9 
H- 1.0 

- 6.8 

— 6.9 
-h 2.4 

0.0 

— O.I 

— 0.8 
—21.6 

— 0.2 
4-21.9 



For summary of the elements of reduction see page 3. 



No. 



31 

42 



MOON'S— 



Parallax. 



// 



— 46 32.8 

- 45 25.6 



Semi-diam. 



// 



- 14 55.6 

- 14 50.3 



108 



OBSBRTATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
Oct. 23 



24 



25 



E 



I 
2 

3 
4 

5 

6 

7 

8 

9 
10 

II 
12 
13 
14 

15 
16 

17 

18 

19 

20 
21 
22 

23 
24 

25 
26 

27 

28 

29 

30 
31 
32 
33 
34 

35 
36 

37 
38 
39 

40 

41 
42 

43 
44 

45 
46 

47 

48 
49 



OBJECT. 



32« Camelopard., S. P. 

Neptune 

Polaris .... 
J? Piscium 
o Piscium 

Uranus 
a* Gerainorum 
^ Geminorum 
^ Geminorum 
>. Ursx Min., S. P. . 

Venus II, S. . 
t3 Leonis .... 
a Canum Venat. 

Polaris, S. P. . 

Sun I, S. . . 

Sun II. N. . . . 

Mercurj', (center) . 
a Serpeniis . 
K Ophiuchi . 

e Draconis . 

^- Ursas Minoris . 

a« Capricorni 

ic Cephei, (R.) . . 

ir Capricorni . . . 

ft Aquarii 
V Cygni .... 
a« Ursas Mai., S. P. . 
a Cephei, (K.) . 
Moon I, S. 

f Pegasi .... 
a Andromedse, (R.) . 
y Pegasi .... 

Jupiter I, S. 

Jupiter II, N. . . 

yi Ceti .... 
32> Camelopard., S. P. 
32^ Camelopard., S. P. 
t Piscium 
Neptune 

Polaris . 
Uranus I, S 
Uranus II, N. 

n Canis Minoris 

fi Geminorum 

^ Geminorum 
e Draconis, S. P. 
^ Ursae Min., S. P. , 

Venus II, S. . . 
/? Leonis .... 



t 

.A 
O 



F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 
F. 

T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T, 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 

E. 
E. 



U3 



SECONDS OF TRANSITS OVER WIRES. 



I. 



3 
3 
3 
3 



9.8 
22.1 

2 .19.5 

• ■ 

1.2 



II. 



III. 



4.2 



20.1 
46.0 

• • 

0.9 



25.3 



. . 41.0 
6.8 8.0 



IV. 



V. 



VI. 



5.044.025.4 . . 



8.0 
14.6 



VII. 



Vlli 



35.0.53 



23.3.25.0'32.o 



49.0 



4.0 



34.2 
50.758.4 0.6 

31-5 
5. 712. 6.15.0 



16.6 



15.0 3.018.028.038.0 



46.048 

|55.2!58. 
22.725 



650.0 

o'59-5 
933 ' 2 



56.258.3 
5.8 8.010 



18 



36 

2 

35 
17 

55 



12, 

24 

22. 



35.938.3!41 



50.025.0 



2.039 



4 14.1.20.222.524 
726.332.5I34.6I36 
1,23.8-30. 5.32. 6'34 

I34.436.4I38 

13. 7.15 



3.8' 5.5 II. 6 



48. 255. 559. 6|r7. 623. 229 

i . . .31.0:19.0 5 

5.25.131.5:33.835 



• • I • 



;21.023. 

I 
22. 825. 527. 1 



33.7 



9.6 I2.OJI3.6 
48.5I52.O53.6 

6.S 0.3,56.7 

49. 254. 157. 4 

2.5 5.1 6.6 

19.822.424.0 

II. o 

4.5 
17.0 



35.7 



38 



19.921.924 



1.8 
45.2 
10.6 15 



4.5 



13-0 



019 



15.417 



35-6 



44.1 

8.6 



14.0,15.5 
7.2 8.8 

i9.5"2i.o 

28.3,30.3 



30. 1 32. 1 34 



22.5125.027 
15.217.3i19 



32.3,34 



38.3 40.046. 5 48. 6|50 

17.6159.2,38.0.19 

26.8 5. 845. 8,26 

46.948.1 54.4 56.5'58 

II. I 12.5 18.820.922 



47.012.037.056 
20.1 23.024.5 . . I . . I . 
29.331.433.7,36 



0.6 
50.0 

0.9 
0.7 



3.4 



5.0 



53.0,54.3 

3.8^ 5.4 

,53.1,48.7 
25.011.0 



II. 313. 215 
1.7 4.0! 6 



12.4 



14.5117 



54.8,57.5 



27.5 
59.0 



37.130.724 
55.0 



29.731.733 
5.5 7.6. 9 

I 



IX. Mean wire. 



CORRECTIONS. 



5» 



Inst. 



021. 0; . . 

7 25. 026. 729. 5 
25.1 26.629.0 



m. s. s. 

47 44.92,- 2.79" 



Apparent R. ^f 



Clock 
appar'nt. 

s. 



543.044.247.2, 
9io.i|i2.oi4.9 

436.337.438.8 
'123.925.628.2 



o. . 



3_ 6.5 8.1 10.6 
116. 3 18.020.6' 
043.750.755.2 
o, 1 2 . o 



630.732.435.1 

7!43.o"44.747.2 
7'4I.I43.045.5, 
542.5I44.146.6' 
621.823.526.0 



147.252.059.2 
056.01 . . I . . 
742.043.646.2 
140.047.259.3 
0,44.345.948.6 



30.1 
15.4 



31.834.2 
17.4.20.7 



232.435.840.9 
524.025.628.3 



240.442.044.6 
334.236.0,39.0 
4125.627.330.0 

'37.5;39.04i.5 
336.3 

I 

7| 7.2 8. 911. 5 
958.2 . . I . . 

6, 5.5 . . ! . . 

5. 4.7 6.3 8.8 
929.1 30.6.33.0 

I 
024.0 

142.2,43.846.8 

038.0 . . 

I|2I. 523.0 

013. 1 



024.0 

8 19.0 
oi . . 



25.4 
15. 017. 8 

26.028.6 



7 35-8 

7 16.0117.520. 1 



II 31.92 -H 9.77, . . 
24 16. 6t^ — 0.37 -I-12.31 
38 16.72— 0.40-I-12.43 



12 1.26 — 11.781 



56 22.42 
58 34.64 
14 32.53 
37 34.34 
51 13.63;— 0.41 -f-12.64 



0.54 . . 
0.54 . . 
0.60 
— o.43'-|-i2.58 



48 23.51I-I- 0.36 
55 1905 4-14.22 . . 
10 33.60— 0.55 412. 49 
13 2.83-1- 1. 451 . . 
19 35.73- 0.58,4-12.54 



45 21.90 
52 4.57 
58 34.75 
15 14. 9^) 

25 15.33 

37 32.18 

I 24.94 

6 17.26. 

25 29.251 

25 32.30, 



0.52 4-12.52 
0.23; . . 
1.08' . . 
0.46 . . 
0.57 . . 



36 48.59,- 0.59 +12.56 

47 38. 50;- 3." . . 

47 46.10— 3. II . . 

55 56.48 — 0.42 f 12.67 

59 20.83— 0.44 



II 35.50 



I 



4-10.98 



15 33.40,- 0.32 . . 

15 33.6b'— 0.32' . . 

32 13.17— 0.43 4-12.82 

37 3.99— 0.29 +12.71 



45 14.73 
48 24.95 

55 54.32 

23 31.69 
42 7.52: 



0.294-12.73 

1. 16 . . 

15.01 

0.45 
0.374-13.00 



Clock 
adopted, 



s. 
4-12.46 



4- 
4- 



15 33.94 
26 0.51. 

37 3.91 
45 14.78, 
55 40.58: 



14 58.29,— 0.43 . . 4- 
42 7.94!— 0.37 -hi2.53 4- 
49 38.38J— 0.20;4-l2.50 |4- 



0.31! . . 4- 

0.254-12.51 4- 

• 0.26 4-12.75 4- 

0.29 4-12.65 ,4- 

13.38. . . -h 



4- 
4- 
4- 
4- 
4- 



,4- 
+ 

I 

4- 
4- 
4- 
4- 
4- 



0.41 4-12.60 4- 
0.09, . . ;4- 
0.38+12.57 ■+- 
0.46I . . 14- 
0.46 . . + 



+ 
+ 
+ 
4- 
+ 

+ 

+ 
4- 
4- 
+ 

4- 
4- 
+ 



2.46 
2.46 

2.47 

2.54 
2.54 
2.54 
2.54 

2.54 

2.52 
2.53 
2.54 
2.54 

2.55 

2.55 
2.56 

2.56 
2.57 



Ascension. 






h. m. s. , 

12 47 54.59- 

. . . .1 



-^ 



I II 54.15 
I 24 28.77 
I 38 28.79 



7 
7 
7 
7 
19 

II 

II 

12 

I 



15 
26 

37 
45 
55 

15 
42 

49 
12 



46.17 
12.80 
16.17 
27.0^ 
39-74 

10. 3S 

20.10 

50.72 

2.02 



3.2: 
0.04 



0.:; 
0.21 
o.i; 



0/.: 

O.OI 

0,0: 



13 56 34.43 

13 58 46.65 
15 14 44. 40^ 

15 37 46.47- 

16 51 25.79- 



0.0: 

O.Cm 



2.59 19 48 36.46 -^ 0. 



2.59 

2.60 
2.60 
2.60 

2.60 
2.60 

2. 60 
2.60 
2.60 

2.61 
2.63 
2.63 
2.63 
2.63 

2.63 
2.63 
2.63 
2.63 
2.63 

2.63 

2.68 
2.68 
2.68 
2.68 

2.69 
2.69 
2.69 

3.02 
3.02 



19 55 45-^6- o.4r 

20 10 45.65 4- O.Il 

20 13 I6.^'^ -J- O.OI 
20 19 47-75 -^ or 

20 45 33.9^^^ '^.i 

20 52 i6.f)4 — o.(.«f, 
8 56 46.27 -}- n.i., 

21 15 28.02 -!- o.ir 
21 25 27.36 +63.31 

21 37 44.3S- O.OI 
o I 37.4^ + O.II 
o 6 29.51 + 0.'^ 
o 25 41.42 
o 25 44.47 . 

o 37 0.63 -t- OI- 
12 47 48.10— 7 3- 
12 47 55.62 + 0.:. 

o 56 8.69— 0.'> 

o 59 33.02 



I 

7 
7 
7 
7 



II 

15 
15 
32 
32 



59.11 + 

45.76 
46.04 
25.42- 
16.3S- 



I.rjf' 



O.If 



7 45 27.13- o.u- 
19 48 36.45 - 0.1^ 
19 55 52.00- 3 04 

I 

II 23 44.26- OM 
II 42 20.17^ o.v: 



1.20.23.29. Bisections at sets B and D. 

5. Seems one rev. wrong in N. P. D. 

8. R, A. observed over set E. 

9. Seems five revs, wrong. 
36.37.46. Bisections over sets B and D. 

48. Seems 2' 20" wrong in N. P. D. Cannot correct it. 






OBSEBYATIONS WITH THE TRANSIT CIBCLE. 



109 



H : Circle 
g ! Division. 



I 

2 

3 
4 

5 



/ ■ 

8 ■ 

n 

10 

I 

II 

12 
U 

15 
It) 

I? 
19 



20 
21 

22 , 

23 , 

24 1 



I 






^0 



31 , 

3-1 
33 

34 



39 

40 
41 
42 
43 
44 



303 o 
34 16 

310 14 
24 10 

30 20 

16 6 
6 40 

10 30 

11 42 
307 46 

33 6 
23 30 

359 48 
307 28 

51 6 
50 34 

59 54 

31 58 

29 14 



328 

309 
51 

218 

57 



! 25 , 48 

i 2(J 1 35S 



203 

54 

29 
169 

24 
37 

37 



35 57 32 
3^ ! 303 o 
37 303 o 



45 II 42 

4t> I 28S 48 

47 ! . . 



4^ 

40 



MICROSCOPE MICROMS. 



54 
56 
46 
22 
26 

18 
10 

6 i 

28 

34! 
26 ; 

22 i 

48 ■ 

48 



34 16 

310 16 
16 6 
16 6 

33 16 
10 30 



33 52 
23 30 





I. 


II. 


r. 


II 


II 




4.8 


1.5 


10 


10.8 


7.6 




5.7 


2.5 




5.8 


2.5 




5.5 


3.7 


10 


12.7 


9.3 


lO 


9.4 


5.0 


10 


11.7 


9.0 




3.2 


0.5 




4.0 


1.4 




9.5 


4.5 




8.4 


3.7 




8.0 


3.2 




4.5 


2.0 


10 


5.5 


1.8 


10 


4.9 


0.9 




7.6 


3.8 




5.6 


2.3 




6.0 


2.5 



lo 



4.5 
4.0 

6.8 

1.5 

7.4 

9.0 
6.8 



2.3 

7.8 

4-7 
2.6 

5.5 
6.2 
6.2 

6.4 

2.3 
2.3 

5.0 

4.0 

8.3 

8.3 
7.8 
4.0 

4.8 
4.3 



10. o 
9.3 



III. 



II 



1.3 
1.3 
3.8 
0.6 

3.7 

5.7 
3.5 



17 
6.3 

1.3 
0.3 
1.5 
2.5 
2.5 

3.0 
28.4 
28.4 

1.4 

1.4 
4.0 
4.0 

4.3 
0.6 

2.4 

1.6 



29.5 
3.0 

0.5 
28.6 

29.0 

5.5 
1.6 

5.8 
27.4 
29.1 

2.9 
2.0 

2.8 
1.5 

29.0 

29.2 

0.4 

28.8 

29.3 

29. z 

29.7 

29.5 

27.4 
29.2 

t.4 
0.1 



6.3 

3.5 



28.5 
1.5 

26.8 
26.8 
26.9 
28.4 
28.4 

29.0 
26.5 
26.5 

26.8 

28.4 
0.5 

0.5 

0.0 

28.0 

28.5 
0.1 



2.8 
2.0 



IV. 



n 



3.3 
6.4 

3.5 
2.2 

2.3 

8.8 

5.0 

9.0 

29.7 

3.7 

4.6 

3.6 

3.1 
2.6 

1.2 
1.2 

3.5 

2.3 
1.8 

0.4 
2.6 
1.8 
26.3 
8.6 

3.8 
3-3 



TELESCOPE MICROMETER. 



Rev. 



28.3 
4.7 

29.5 
27.0 

0.2 

0.5 
0.5 

1.5 

28.8 

28.8 
0.6 

1.6 

2.3 

2.3 
2.1 

28.4 

0.1 
1.5 



4.0 
3.2 



28 

24 
22 

27 
27 

22 

26 
26 

23 
22 

24 
20 

24 

25 

22 
22 

27 
22 

24 

24 

25 
26 

28 

21 

28 
25 

31 
24 

29 
29 

24 
26 

29 

29 

27 

28 

22 

30 

23 
22 

25 
27 

18 
19 



33 
20 



I. 



685 
680 
762 

681 
593 



408 
806 



094 



23 



538 
864 



750 



2. 



053 

675 
620 

754 

798 
407 



298 
866 

948 
651 
042 
630 



900 
135 



3. 



628 

• • 

733 



034 

560 

523 
700 



362 



739 



716 



055 



4. 



078 
660 

555 
623 

671 
290 



418 



190 



156 



168 
820 

870 

572 
000 

688 



830 
012 

lOI 

908 

480 
421 

558 
271 
982 

000 
216 



570 
516 
410 

588 
130 

304 
233 



510 



069 



475 



140 
654 



184 

363 
765 



570 



040 

158 

900 
232 



160 
874 

005 



070 



290 



125 



310 

644 
140 
^2 

740 
076 

226 
721 



130 
490 



980 

• ■ 

914 

• ■ 

039 
004 

660 
733 



610 
210 

852 

590 



o o 

S o 



II 



15.6 
15.6 
15.6 
15.6 
15.6 

15.6 
15.6 

15-6 
15.6 
15.6 

14. 1 
14. 1 
14. 1 
14. 1 

14. 1 
14. 1 
14. 1 
14. 1 
14. 1 

14. 1 
14. 1 
14. 1 
14. 1 
14. 1 

14. 1 
14. 1 



120 
462 



14. 1 
14. 1 

14. 1 
14. 1 
14. 1 
14. 1 
14. 1 

14. 1 
14. 1 
14. 1 

14. 1 

14. 1 
14. 1 
14. 1 
14. 1 
14. 1 

14. 1 
14. 1 



Apparent 
Zenith Dis- 
tance, South. 



12.6 
12.6 



// 



I 

a 

o 

en . 

I 



303 2 45.7 

34 19 51.3 
310 18 16.7 

24 13 2.1 

30 23 i.o 

16 10 10.4 

6 43 18.3 

10 33 14.2 

TI 46 10.3 

307 50 15.2 

33 9 38.4 

23 34 45.1 

359 51 53.3 
307 31 29.3 

51 10 25.4 

50 38 11.9 
59 57 6.7 

32 2 23.3 
29 17 55.8 

328 57 48.6 

309 59 33.4 

51 49 13.7 
288 24 53.7 

57 30 24.9 

48 20 50.4 
358 13 34.9 

• • • « 

203 8 8.1 
54 31 50.7 

29 36 25.8 
169 28 36.1 

24 25 55.1 
37 51 25.0 
37 50 37.7 

57 34 32.8 
303 3 2.9 
303 2 44.9 

34 20 33.9 

310 18 14.8 
16 lo 7.8 
16 10 I I. 3 

33 19 27.7 

10 33 9.8 

11 47 23.5 
288 52 59.4 



33 53 29.9 
23 34 44.6 



764 



774 



780 

736 
720 

670 



653 
623 

617 

598 



648 

• • 

659 

• • 

668 

• ■ 

674 

677 
696 

• • 

697 

• • 

698 



700 
708 



708 



Refraction, 



704 



4- 
4- 
4- 
•4- 



-f 
+ 
4- 



II 



— I 

+ 

— I 

-H 

-h 
-H 
H- 
-4- 

— I 



33.6 
41.6 
II. 9 
27.4 
35.9 

17.8 

7.2 

II. 4 

12.8 

18.8 



+ 39.6 

-¥■ 26.4 

- 1.4 

— I 17.6 



I 13.8 
I 12.4 
I 41.8 

36.9 
33.0 



35.7 
10.7 
15.6 
47.2 
33.3 



-f I 7.0 

— 1.9 

-I- 25.5 
-f I 23.7 

4- 34.0 

— II. 2 
+ 27.3 
-f 46.7 
-h 46.7 

+ I 34.4 

— I 32.2 

— I 32.2 
+ 41.0 



— I 



+ 



10.8 
17.5 
17.5 
39-6 
II. 5 



-4- 12.6 
- 2 54.5 



+ 

4- 



39.3 
25.4 



Apparent N. 
P. Distance. 



ti 



354 

85 
I 

75 
81 



7 33.2 
26 54.1 
23 26.0 

19 50.7 
29 58.1 



67 16 49.4 
57 49 46.7 

61 39 46.8 

62 52 44.3 
358 55 17.6 

84 16 39.2 

74 41 32.7 
50 58 13. I 

358 36 32.9 

102 18 0.4 

loi 45 45.5 

III 5 9.7 

83 9 21.4 

80 24 50.0 

20 3 34.1 

I 4 43.8 

102 56 50.5 

12 40 40.3 

108 38 19.4 

99 28 18.6 



(n 



M 



3 C 

c o 

— o 
SO 





n 


+ 


0. 


2 


— 


0. 


2 


-h 


0. 


6 


— 


I 


.7 


— 


15 





-_ 





I 


4- 


I 


.8 



4- 5.2 
-73.5 
4- 1.3 

— 5.2 
4- 0.2 

— 1.0 

— 1.5 

— 6.9 

— 6.8 

— 9.6 

4- 3.3 

— 1.0 



I.I 
0.1 
0.8 

3.0 
1.2 



+ 



— 0.6 



49 19 54.2 -f 1.7 



27 57 47.6 
105 39 35.6 

80 43 21.0 
61 37 56.3 

75 32 43.6 
88 58 32.9 

88 57 45.6 

108 42 28.4 
354 7 51.9 
354 7 33.9 

85 27 26.1 

I 23 25.2 
67 16 46.5 
67 16 50.0 
84 26 28.5 

61 39 42.5 

62 53 57.3 
339 56 26.1 



85 o 30.4 
74 41 31.2 



- 3.6 



4- 0.2 

4- 1.5 

4- 3.0 

- 1.3 

- 1.3 

4-0.1 

4-19.9 

- O.I 

— 0.2 

4- 0.2 

— 0.1 

— 0.1 
4- 1.0 
4- 0.8 

— 0.6 
-H 1.3 



- 5.2 

- 1.7 



No. Barom. 



External 
Therm. 



in. 



Attached 
Therm. 



For summary of the elements of reduction see page 3. 



No. 



29 



MOON' 



Parallax. 



44 0.5 



Semi-diam. 



II 



- 14 48.3 



110 



0B8EBVATI0NS WITH THE TBAN8IT CIRCLE. 



DATE. 



1868. 
Oct. 25 



26 



27 

28 



6 

3 



I 

2 

3 

4 

5 
6 

7 
8 

! 9 

I '^ 

! 12 
13 

14 

16 

17 
18 

19 
20 

21 

22 

23 

24 

25 
26 

27 

28 

29 
30 

31 

32 

33 

34 

35 
36 

37 
38 

39 
40 

41 

42 

43 

44 

45 
46 

47 
48 



OBJECT. 



t 

(0 

o 



y Ursae Majoris 
a Canum Venat. 
Polaris, S. P. . . 

Sun II, N. . 
A Ursae Minoris . 
e Delphini 
/? Cephei, (R.) 
e Pegasi .... 

79 Draconis,(R.) . 

a Aquarii 

d Aquarii 

9 Draconis, S. P. 

226 Cephei .... 

?' Aquarii 

Moon I, S. . . 
a Andromcdae, (R) . 
y Pegasi .... 

Jupiter I, S. . 

Jupiter II, N. . 
P Ceti .... 
32* Camelopard., S. P. 
32' Camelopard., S. P. 

Neptune . 

Polaris .... 
o« Geminorum 
a Canis Minoris 
3 Geminorum 

Ursae Min., S. P. . 



E. 
E. 
E. 

E. 
E. 
E. 



^ 



Venus II, S. . 
y Ursae Majoris . 

Polaris, S. P. . 

Sun I, N . 

Sun II, S. . 
B Aquarii 
TT Aquarii 
9 Draconis, S. P. 



i 

a 
a 
o 



Pegasi, (R.) . 
Aquarii 

Piscis Australis 
Pegasi, (R.) 
Cephei . 



6 Piscium 
I Piscium, (R.) . 
4i63Groombridgc . 
u> Piscium 
a Andromedac, (R.) . 

y Pegasi . . . . 
Jupiter I, S. . 



E. 

E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

F. 
F. 



T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 






T. 
T. 
T. 

T. 
T. 



SECONDS OF TRANSITS OVER WIRES. 



I. 



II. 



III. 



22.1 25.5 



2.5 



IV. 



27.235.2 
48.024.5 



V. 



VI. 



Vll.iVIIIlIX. 



37.8 

59.0 



40. 

40. 



53055-6 0.0 
48.3I50.4I53.6' 

5". 5 



Mean wire. 



CORRECTIONS. 



Inst. 



Clock 
appar'nt. 



.0 6. 913. 0.15. 2 17, 
. . .53.5 . 



9.016.7 20.8 39. 145.0 
19. 422. 0I23. 529. 531. 7 



223.625.027.6 
'31.026.5 20.01 



51 
33 



m. s. 
46 38.97 



6 15. II 
55 15.70 



s. 
0.03 

49 37-84— 0.18 
12 0.38—14.22 



0.56 
17.29! 



s. 



-I-13.05 



Clock 
adopted. 



Apparent R. 

Ascension. 



35 

^> '■J 



S. 
+ 13-02 

-H 13.03 
+ 13.03 



h. m. s. s. 

11 46 52.02 + 0.02 

12 49 50.69 — o.oi 
I 11 59-19 -J- 2.41 



+ 13.04 14 6 27.59-66.57 
+ 13.08 19 55 46.07+ 2,43 



37.740.341.847.950.052 

29. 3*32. 033. 639. 7:41. 843 
.3 10. i'52. 335.0.18 
.614.1139.447.4:55 



27.3 



58.0 



16. 



8. 



21. 023. 725. 231. 533. 
. . I . . 28.5:30.732. 

10.2113.4 15. o|22. 024. 

3.8] 6.7 8.2JI4.5 16. 
29.632.133.71 . . 



. "40.943.045. 
35-037.839-445.848. 

38. 



o! 8.9 13.621. i! 
740.041.5 44.0 

■ I ' ■ 

• • • • • • • 

058.059.5 2.0 
950.251.8 54.1 
o, 0.354.043.7 
3,19.626.036.4 



45.9 



2645.02+ 0.95 . . '+13. 09 
37 31-70— 0.41 +1305 +13.10 



58 49.91 — 0,48 +13.04 +13.10 
10 41.82 — 0.54 +13.06 +13.10 



23 35.22— 1.81; 
29 47.20+ 0.88 



635.741.743 
734 736.8 . 

226.6,33.635 



818.7 



I 



25.1 26 
50.051 



37 
8:29 

453 



.8; 
.1 
.5 



• • • 



18.958.6 
,26.5 6.846. 

56.5 59. oj 0.5 6.6' 8. 



45.6 



247.049.1 . . I . . 
050.2 56.658.2; i.o' 
4 19.458.8 .... 
2:25.5' 6.0' . . ' . . 
7 10.8 16.8 18. 521.0 



46.0 8.034.054.021.5 
48.650.357.4 0.0 2.3' 9.6 



0.5 3.2; 4.6.10.7 12.714.8 



45 33.52- 
I 32. 69*- 
I 24.22 — 
6 16.63 

24 41.71 

24 45.05 
36 48.00 
47 38.82 
47 46.20 
59 8.71 



I + 13.10 
' + 13.10 



0.54 +13. II 
0.54 . . 
0.07. . . 
0.38 +13.19 
0.47 . . 

0.47 . . 
0.61 +13.16 

3.71 . . 

3.71 - • 
0.44 



49652. 5 



36.6 



54.1! 1-31 3-6' 5-9 



24. 5I31. 048.0 



5-5 



II. 414. 4. 
21.022.625. 1 
12. 514. 717. 3 



32.7 

• • 

29.0 



39.240.646.749.050.957.058.7 1.2 
• • 131. 935.439-042. 346. ol . . 



44.023.0 1.0 



35.436.843.2 
54.356.6158.6 



35.010.0 



I 



45.447-453-655.4,58.0 

0.6 2.9 7.0 8.5;II.2 



II 33.02 +13-36 - . 

25 59-96- 0.24 +13-15 
32 12.80— 0.43 +13-25 

37 3-50- 0.27+13.25 
55 50.35-18.15; . . 



27 48.88— 0.43 
46 38.92 — o.oij 

II 58.30—11.861 



+ 13-" 

+ 13. II 
+ 13.12 
+ 13-12 
+ 13.12 

+ 13.12 
+ 13-12 
+ 13-12 
+ 13-12 

+ 13.13 

+ 13-13 
+13-17 
+ 13-17 
+ 13-17 
+ 13.18 

+ 13-12 



I 



21 26 59.06 — 0.17 

21 37 44.39 -^ o-^'3 



21 59 2.53 - 0.0; 

22 10 54.38 -r 0.0; 

10 23 46.51 -j- 0.07 
22 30 1. 18 — 0.5^ 

22 45 46.19 + 0.16 

23 I 45.25 -1-62. Ci^ 
O I 37.27— 0..*) 

o 6 29.37 — 0.U9 
o 24 54.36 

o 25 7.70 . . 

o 37 0.51 — 0.01 
12 47 48.23- 7.32 
12 47 55.61 -I- O.O^i 

59 21.40 . . 

1 II 59.51 + 2.S5 
7 26 12.89 -h 0.22 

7 32 25.54— O.If' 

7 37 16.40— o.o^ 
19 55 45.38+ 2.36 

11 28 1.57 — o.6c 



31.733.0 



39. 441. 543. 349. 751. 253. 7 



9.3ii.8i3.3i9.5;2i.6;23.5 29.7'3i.3 33.8 



52.544.035.0^26.9 



29.6.32.333.8,40.1 



20.8 
56.7 



23.425.1 



59-7; 1.4 
48.o'50.6j52.i 

32.339.142.8 

j j 

53.856.357.8 



36.145.0 
. . I17.8 



50.0 
18.7 



10. 1 12. 814. 6 



3.7 6.3 7.8 
44.347.0*48.5 



31.0 



17.6 



42.1 44.2150.352.054.5 



33.2.35-141-443-145-5' 



8.6!lI.O,I3.I|20.2;22.0 25.0 



58.5 
59-0 

4.0 



12.3 
21.7 

19-5 
14.0 



0.7I 
4-1 

6.2 



20.0 
23-9 



2.7. 9.110.713.3. 
^.325.729.636.0; 

8.2 14.4 16. 018. 5 21 



" 45-32 
13 58.60 

9 41-39 
18 21.53 

23 35-20 

34 42.10 
45 33.18 
50 10.86 
0.63 



58 
13 



— 0.51 . . 

— 0.51I . . 

— 0-48 +13.43 

— 0.44+13.39 

— 1.54 • . 

— 0.17 . . 

— 0.48 +13.37 

— o.63' + i3.37 



— 0.14 



+ 13-33 

+ 13-33 
+ 13.33 
+ 13.40 
' + 13.40 
+ 13.40 

+ 13.40 
+ 13-40 
+ 13-40 
+ 13.40 
+ 13.40 



I " 59-77+ 3-47 



14 II 58.14 
14 14 11.42 

22 9 54.31 - 
22 18 34.49 



0.04 
O.OC' 



4.21 + 0.27 

I I ! 

6.13— 0.41+13.36 I+I3.40 



I 



27.048.353.7 3.2 

26. ol 30. 031. 634. 1 
21. 524. o'33. 134. 937. 8 



16.3 18. 424. 826. 429. 1 
4.8 6.2! 8.8 



48 19.51 + 0.55: 

52 21.82 — 0.40-I-13.45 

I 23.92 — 0.03 . . 



6 16.31 — 0.36 + 13.48 
23 56.60— 0.43 . . 



+ 13.41 
+ 13.41 
+ 13.41 

+ 13.41 
+ 13.41 



10 23 47.06 + 0.44 

I 
22 34 55.33 + 0.14 

22 45 46.10 -h OAtTi 

22 50 23.63 -h 0.0: 

22 58 13.89 4- 0.02 

23 13 17.88 -r 0.19 

I 
23 21 19. 12 + cog 



23 

23 
O 

o 
o 



48 

52 

I 

6 
24 



33.47 
34.83 

37.30 



29 
9 



36 

58 



0.34 

o.o<'. 
0.0? 

— 0.09 



5. Observed over wire VI and Ej-Eb. 
7. 12.21.22.30. Bisections over sets B and D. 

31. Seems one rev. wrong in N. P. D. 



OBSfiBVATIONS WITH THE TBANSIT CIBCLE. 



lU 



6 



I I 

2 

3 

4 

5 

6 

7 

8 

I 

9 

10 

II 

12 

13 

I 14 

15 
l6 

17 

Id 

19 

I 20 
21 
22 
23 

24 . 

25 

26 

.27 1 

; 2S 

29 

30 



Circle 
Division. 



32 
33 
34 
35 I 
36 

37 

3^ 

39 
40 

41 



47 

4^ 



No. 



344 24 
359 48 
307 28 



51 
309 

27 
211 



16 
56 
58 

2 



29 34 

214 8 

39 46 

47 16 

295 16 

323 18 

47 6 
47 46 
169 26 
24 22 
37 52 

37 52 

57 32 

303 o 

303 o 

34 18 

310 16 
6 40 

33 16 
10 30 

307 46 

34 16 

344 24 

I 
31 I 307 28 



51 56 

52 28 
47 16 

295 16 

151 12 
47 6 
69 6 

155 34 
331 26 



42 


33 10 


43 : 


146 


44 i 


325 10 


45 


32 42 


46 


169 26 



24 22 

37 56 



MICROSCOPE MICROMS. 



I. 


II. 


'•. // 


// 


9 28.9 


25.1 


10. 


6.6 


8.7 


6.8 


9.3 


5.5 


10. 


6.6 


10.5 


6.7 


7.2 


8.5 


12.0 


7.7 


6.0 


7.2 


II. 8 


7.1 


12.3 


9.5 


8.2 


5.3 


II. 4 


7.4 


9.5 


7.3 


II. 7 


9.0 


II. 2 


9.5 


II. 9 


6.4 


II. 2 


7.6 


II. 2 


7.6 


8.2 


4.1 


6.7 


3.1 


6.7 


3.1 


II. 7 


7.7 


8.8 


5.8 


6.9 


3.0 


10. 1 


6.9 


7.0 


3.2 


6.0 


3.0 


7.5 


3.7 


3.4 


29.1 


8.6 


7.0 


8.6 


3.2 


14.4 


9-3 


12.7 


9.5 


"•3 


8.9 


9.8 


8.0 


II. 4 


8.8 


12.5 


9.3 


9.2 


6.5 


10.9 


8.2 


10.5 


7.6 


10. 1 


2.3 


14.6 


12.3 


13.4 


10.6 


8.2 


6.4 


10.5 


6.7 


II. 6 


8.3 



III. 



II 

24.2 

5.0 

6.6 

0.5 

4.7 
2.2 

4.8 

1.8 

3.8 
1.8 
6.3 
3.0 

6.3 

2.5 
2.2 

5.0 
2.6 
1.8 

1.8 

28.0 

0.3 

0.3 
1.5 

3.5 
0.0 

3.0 

29.5 

0.0 

i.o 
28.1 

4.4 

29.2 

4.3 
3.6 

4.8 

3.0 

2.5 

2.3 

0.8 

4.0 

0.1 

2.5 
8.3 
3.6 
1.2 

0.5 
3.6 



IV. 



II 

23.6 

5.4 
7.8 

4.3 

6.7 

4.5 
2.8 

6.0 

2.5 
6.5 
7.2 
6.0 

7.7 

4.5 

5.7 

4.5 

4.5 
6.4 

6.4 

1.3 
3.3 
3-3 
6.3 

5.3 

1.3 

5.3 
1.8 

1.7 

2.6 
28.3 

5.1 

0.3 

4.8 

6.2 

8.3 

3.5 
5.5 
7.0 
2.0 

5.5 

3.3 

3.3 

10.5 

7.8 
1.2 

4.3 
5-3 



TELESCOPE MICROMETER. 



Barom. 



in. 



External 
Therm. 



Attached 
Therm. 



Rev. 



22? 

23? 
25 

25 
26 

25 
26 

29 

27 
22 

28 

28 

26 

26 

27 

28 

23 
22 

25 
29 
27 
28 

24 

20 
26 

25 
26 

22 

25 
21 

24 

24 
22 

28 
28 

23 
26 

22 

27 
21 

25 

31 

25 

28 

28 

23 
21 



I. 



920 
300 



570 



890 
530 



770 



900 

895 



235 

970 
590 



780 
864 

• ■ 

889 



233 



035 



2. 



815 
310 



220 
790 
230 
560 



965 
350 
490 
950 

630 
520 
780 

785 
870 



090 
260 

540 
920 

740 



380 
860 
760 

890 
862 

582 

882 



460 

192 

801 
650 
532 

759 
937 

840 
172 

■ ■ 

169 

882 

676 
250 



3. 



350 

940 

670 



228 



418 



560 



590 



860 



470 



412 



4. 



225 
780 
320 

950 

800 
810 
230 
330 

460 
910 

350 
480 
810 

595 
700 

675 
750 



805 

035 
410 

640 

910 

590 
290 

535 
720 

720 

08 
658 

364 



918 
461 

245 

906 

504 
392 
646 
000 

639 
070 

480 

269 

810 

838 



183 
670 

215 



780 



310 

350 
890 
420 



535 

• • 

700 



910 
065 



850 

670 



870 

662 



972 

• • 

238 



782 



.S c 
o o 



Co 



"O 



It 



2.6 
2.6 
2.6 

2.6 
2.6 
2.6 
2.6 
2.6 

2.6 
2.6 
2.6 
2.6 
2.6 

2.6 
2.6 
2.6 
2.6 
2.6 

2.6 
2.6 
2.6 
2.6 
2.6 

2.6 
2.6 
2.6 
2.6 
2.6 

2.5 
2.5 

2.3 

2.3 
2.3 

2.3 

2.3 

2.3 
2.3 
2.3 
2.3 
2.3 

2.3 
2.3 

2.3 
2.3 
2.3 

2.3 
2.3 



Apparent 
Zenith Dis- 
tance, South. 



o / // 

344 28 27.9 
359 51 52. 
307 31 28.9 

51 19 21.2 

309 59 31.6 

28 I 22.8 
211 5 16.2 

29 36 26.1 

214 10 56.2 

39 50 6.0 

47 18 39.8 

295 18 42.3 

323 21 4.1 

47 9 9-8 

47 48 54.1 

169 28 36.7 

24 25 53.2 
37 56 7.6 

37 55 20.0 

57 34 35.0 

303 3 1.5 
303 2 42.3 

34 21 35.5 

310 18 12.7 
6 43 17.7 

33 19 27.6 

10 33 10.8 

307 50 12.0 



34 19 22. 
344 28 30. 



307 31 42.3 

51 59 41.0 

52 32 2.0 
47 18 39.6 

295 18 40.7 

151 15 52.0 

47 9 9-4 
69 10 I I. 4 

155 36 54.6 
331 30 20.6 

33 13 23.9 
146 2 2.3 

325 13 23.0 

32 44 43.0 

169 28 37.2 

24 25 54.2 
38 o 33.4 






503 



600 



Refraction 



/ // 

— 16. 1 

— 0.1 

— I 14.5 



630 



427 

• • 

579 
583 

• ■ 

592 



603 
608 

• • 

610 



+ 
4- 

+ 



+ 



-h 



4- 



I 
I 



+ 

+ 
+ 



+ I 

— 2 



II. I 
9.0 

30.9 

35.2 
33.2 

39.8 
48.9 

3.6 

3.5 
43.7 

3.4 
5.0 

II. O 

26.9 

46.1 



46.1 
I 33.0 
I 30.9 
I 30.9 

40.5 



I 
I 



— I 

— I 



9.8 
7.0 

39.4 
II. 2 

17. 1 



+ 40.4 

— 16.4 

— I 13.6 

-h I 12. 1 

-H I 13.4 
+ I 3-3 

— 2 3.1 

— 32.1 
-h I 3.1 
-h 2 32.9 

— 26.6 

— 31-9 



38.5 
39.6 
40.8 

37.8 
10.9 

26.7 
46.0 



Apparent N. 
P. Distance. 



O I 11 

35 34 33.0 
50 58 14.0 

358 36 35-6 

102 26 53.5 

I 4 43.8 

79 8 14.9 
20 o 29.8 

80 43 20.5 

16 54 45.2 
90 57 16. I 
98 26 4.6 
346 23 0.0 
14 26 41.6 

98 16 34.4 
98 56 20.3 

71 37 55.5 

75 32 41.3 
89 3 14.9 

89 2 27.3 
108 42 29.2 
354 7 51.8 
354 7 32.6 

85 28 37.2 

I 22 24.1 

57 49 45.9 

84 26 28.2 

61 39 43.2 
358 55 16. I 

85 26 24.4 
35 34 35.4 

358 36 49-9 

103 7 14- 3 
103 39 36.6 

98 26 4.1 

346 22 58.8 

79 51 1.3 
98 16 33.7 

120 19 5.5 

75 29 53.2 

22 36 9.9 

84 20 23.6 

85 4 58.5 
16 19 3.4 

83 51 42.0 
61 37 54.9 

75 32 42.1 
89 7 40.6 



e o 

« 4) 



II 

- 1.9 

- 0.7 
0.0 

- 6.9 
+ O.I 

4- 0.6 

- 4.2 

- 0.3 

— 1.6 
+ 0.7 
-h 0.4 

— 0.2 

— 0.9 

— 0.6 






0.9 
0.8 

1.3 



- 1.3 
-h 0.6 
+ 20.5 

+ 1.3 

- 0.2 

- 0.2 

+ 0.8 

-h 0.5 
+ 2.1 

- 0.2 

- 5.2 
-h 0.2 

+ 13.6 

- 7.0 

- 7.0 

- 0.3 

- 0.9 

- 0.3 

- 1.5 
4- 0.5 
-h 2.1 
-h 0.3 

- 1.2 

- 2.1 
-h 1.9 

- 1.5 

+ 0.5 

-H 1.7 

- 1.3 



For summary of tht iUments of reductwn set pagt 3. 



No. 



15 



MOON' 



Parallax. 



/ II 
40 II. 8 



Semi-diam. 



/ II 
- 14 52.3 



112 



OBSERVATIONS WITH THE TRANSIT ClBCLt:. 



DATE. 



1868. 
Oct. 28 



29 



XI 

6 

s 



I 
2 

3 
4 
5 

6 

7 
8 

9 
10 

II 
12 

13 
14 
15 

16 

17 
18 

19 
20 

21 
22 

23 
24 

25 
26 

27 

28 

29 

30 

31 
32 

33 
34 

35 
36 

37 
38 

39 

40 

41 

42 

43 
44 

45 
46 

47 

48 

49 
50 



OBJECT. 



Jupiter II, N. . . 

Moon I, S. . . 
321 Camelopard., S. P. 
32« Camelopard., S. P. 
e Piscium 

Neptune 

Polaris, (R.) . . 
Polaris .... 
Uranus I. . . . 
Uranus II, N. 

a Geminorum 

a Canis Minoris 

/) Geminorum . . 

^ Geminorum 

X Ursae Minoris, S. P. 



C Praesepe 
I Praesepe 
e Hydrae . . 
Venus II, S. 
^ Leonis . . 

7 Ursae Majoris 
a Canum Venat . 
Polaris, S. P . 
a Virginis 



Sun I, N. . . 

Sun II, S. . . . 

Mercury, (center) . 
a Serpent is . 
C Cygni .... 

I Pegasi .... 
24 Ursae Majoris, S.P. 
f Aquarii 

II Cephei, (R.) . 
79 Draconis, (R.) 

a Aquarii 

32 Ursae Majoris, S.P. 

tf Aquarii, (R.) 

7 Aquarii 

C Pegasi, (R.) 

y. Aquarii 

a Pegasi, (R.) 

Cephei . 

X Draconis, S. P 

y Cephei, (R.) 

Jupiter I, S. 

Jupiter II, N. 
21 Cassiopeae 

Neptune 

Polaris . 
^ Ceti. . . 



I 

O 



T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
E. 
E. 

E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 
E. 






SECONDS OF TRANSITS OVER WIRES. 



28.2 
39-4 

• ■ 

43.5 

44.5 
53.0 

• • 

15.5 



45.4 

0.0 

49.6 

0.3 



48.5 
22.0 
23.0 
II. 7 
54.2 

17.6 



I. 



25.0 



20. 9 
53.3 

34.3 

• • 

20.0 
9.4 



36.9 

• • 

8.9 
II. 2 

59.3 

20.4 
47.7 

31.9 
52.9 

55.8 
22.4 

7.4 

38.5 

• • 

2.7 



II. 



30.7 



III. 



55-6 
32.1 



12. 0^58.0 
25.2 



45.9 
47.2 

• ■ 

18.3 

• • 

48.3 
2.8 

52.5 
3.2 



51. 1 
24.7 



47.4 

48.6 
48.0 

• • 

19.7 
24.6 

50.2 
41 

54.1 
5.0 

12.0 

52.6 

26.2 

26.o'27.5 



IV. 



14.2 
57.0! 



15.6 

58.3 



22.024.4 



27.8 



40.0 



29.2 
47.0 

■ * 

25.0 
58.0 



23.6 
56.5 

37.1 

• • 

22.6 
17.222.0 



57 
38 

• 

5 
53 

55 
15 



27 

57 
10 
I 
II 
22 

59 
32 

33 
22 

4 

35 

14 

2 

35 
49 

• 

31 



38.645 

46.5:40 

24.030 

40 



39.441.0 
23.2 



II. 2 

13.7 
1.7 

23.0 
50.1 

38.3 



12.6 

15.3 
3.3 

24.5 
51.6 



47 

17 

19 
21 

9 

30 

58 



40 



42.058 
46.242.0123 
6.9 

24.6 

• ■ 

16.9 
41.0 



5.4 



13.3 

26.0 

33.7 
22.8 

42.3 
51.0 

6.8 



35 
45 
48 
10 

13 



V. 



VI. 



6l59-7 1.7 3 
440.542.548 
18 
145. 4:26.0; 5 



VII.VIII 



57.7 
58.9 



655.7 
©'56. 8 



35.057.0:26 



029.1 

4: 0.0 
4*12.6 

i| 3-4 
914.1 
34.0 



31.233 

2.2' 9 

14.720 

5.612 



16.5 
46.0 



23 
56 



3 1.4 3.610 
8 34.9'37.i;43 



7,35.4 
o'24.o 



8 



7.0 



038.7 

39.9 

55.0 

4.0 



37 
26 

9.1 

42.0 

42.6 

30.0 

6.0 



8,44 
032 



15 

52 

48 

3 
10 



337.639946 



51.3 

• • 

33.2 
7.5 



53.455 
32.633 

35-3;4i 
10.017 



447.6-49.7 
734.328.4 
32.1,34.1 



46.9 



49-3 
12.3 

20.9 

23.5 
II. 5 

32.8 
0.2 
3.6 

17.2 

49-3 



37.8 
52.6 
50.8 
35.0 
15. 1 



53.1 



56 
22 
40 
II 

29 



51.257 

8.o| 2 

23.0:29 

25.5 
13.6 



31 
20 



34.841 

2.31 8 
8.6|24 

11.9I53 
58.625 



40.0 

59.9 

52.7 

3.0 

17.3 



43 
41 
23 
58 
27 
23 



IX. 



50.553.0 
3.038.1 



5.5 
6.5 



8.0 
9.0 



Mean wire. 



13. 012.0 
39.343.0I 



411.414.2 
722.524.9' 

6j14.517.3i 
325.027.9 



II. 7 

45-5 



14.4. 

48. o| 



o'45. 5148.0 



33.8 
17.0 



36. 3i 
19.6 



6:55.459-6 
049.853.0 
o 

4 



12.0 14.6 



247.850.5 
6 . . . . I 

634.635.9' 
8143.145.6; 

018. 621. 6 



57.7 



0.5 



42.044.5; 



16.0 
35.1 



258.7 
2 . . 

30.6 

33.0 

21.5 



23.7 
43.7 

• • 

33.1 
35.6 
24.0 



42.445.1 



10. 1 
28.9 

49.5 
32.0 

44.1 

• ■ 

28.5 
0.0 

• • 

25.0 



12.9 

35.1 
41.7 
43.5 

46.8 

3*8.5 
2.9 

• • 

27.6 



m. 
23 56 

36 40 
47 38 
47 45 
55 55 

58 56 
II 37 

" 35 
15 28 
15 29 

25 59 
32 12 

37 3 

45 14 
55 33 

30 I 
32 34 

39 35 

36 23 
42 6 

46 38 

49 37 
II 52 

18 2 

15 37 

17 51 

9 3 

37 33 
7 7 

15 47 
22 34 
30 32 
37 46 
51 59 



s. 



CORRECTIONS. 



Inst. 



Clock 



appar'nt. adopted 



Clock 



s. 



58 
8 

18 
28 

34 

45 

58 

13 
23 
33 



49 
12 

20 

23 
II 

32 
o 

3 
17 
49 



23 34 
23 37 
35 52 
58 50 
II 37 
17 15 



681 

51 
42 
40 

70 

83 
50 
42 

73 



8. 



0.43 . . 

0.44 

3.13 . . 

3.13 . . 

0.40+13.43 



— 0.41 

+ 16.88 
-HII.06 

— 0.30 



08 — 0.30 



84 
52 
41 

13 

60 

41 

96; 

65 
98 

92 



35,- 



0.244-13.34 
0.41 -I-13.57 
0.27 -I-13.41 
0.28 4-13.46 
15.12 . . 



0.33 

0.33 
0.40 

0.33 
0.29 



+ 13.64 

• ■ 

+ 13.58 



16 
05 

70 
32 
26 

30 

53 



0.071 

0.18 +13.58 

7.25I . . 

0.39+13.57 



— 0.41 

— 0.41 

— 0.44 

— 0.32 +13.50 

— 0.22 +13.70 



44- 0.271 + 13.75 

48;- 0.77I . . 

20— 0.38 +13.66 

63'+ 0.60 . . 

47 + 0.72 . . 



14 

64 

92 

43 
60 



74- 

18 

45 + 
68 

51 

50 

82 

78 
61 
60 

191- 



0.66 
0.22 

0.35 
0.16 



+ 13.69 



0.38 +13.70 

0.14 

0.47 

0.76 

0.99 



0.34 

0.34 
0.30 

0.33 
6.66 

0.38 



+ 13.66 



+ 
1 + 



+ 

+ 
1 + 
1 + 
' + 

+ 



+ 
+ 

+ 
+ 
+ 
+ 
+ 

+ 
+ 



+ 



+ 
+ 

+ 
+ 
+ 
+ 
+ 



— 0.35 +13.64 + 



+ 

+ 
+ 

+ 
+ 
+ 
+ 
+ 

+ 
+ 



+ 
+ 



s. 



41 
41 
42 
42 
42 

42 
42 
42 
47 
47 

47 
47 
47 
47 
47 

48 
48 

48 

58 
58 

58 
60 

60 
60 

61 
61 
63 

63 
70 



o 
o 
o 
o 
o 

I 
I 
I 
I 
I 

2 
2 

2 
2 



4 
4 
4 
4 
5 
5 



Apparent R. 
Ascension. 



-•" c 
c c 
« • - 






h. m. s. j s. 

o 24 12.66^ . . 

o 36 53-4^ +62.-- 

12 47 48.41 — 7.3: 

12 47 55.69- 0.04 

o 56 8.72 — 0.0 

59 9.84' 

1 12 7.80" + II.5: 
I II 59.90-^- 3.t< 
7 15 41.90, . 

7 15 42.25 

7 26 13.07 + 0.3; 

7 32 25. 58,- 0.12 

7 37 16.61 + O or 

7 45 27.32I- 0.05 

19 55 31.95- S-^2 



8 30 14.56 + 4.c>'' 
8 32 48.11 + 4w- 
8 39 48.73- o.y 

II 36 37.23 — O.t"' 
II 42 20.21 -r O.OI 

I 

11 46 52.10-1- 0.0: 

12 49 50.77 ^ O.O' 
I II 58.51 -t- 2.34 

13 18 15.26 -h o.«'4 

14 15 50.9^> 

14 iS 4.52' , . 

15 9 16.45 + 0.1- 
15 37 46.61 -r 0.13 

21 7 21.01 — O.ci 



21 16 0.87 — o.r 
9 22 47.41 -K 0.5 
21 30 45.52 -<- o.L»: 
21 40 0.93 — o.?: 
21 52 13. Sc) + 0.23 

21 59 2.50 -h O.t*'- 

10 8 25.69 + 0.31 

22 18 34.41 — O.Of' 

22 28 36.79 H- 0.0: 
22 34 25.15^— 0.03 

22 45 46. oS + o.o^ 

22 58 13.76 — o.io 

23 13 17.64 — 0.02 

11 23 30.64 + 0.24 
23 34 4.23t— o.I^ 



o 
o 
o 
o 
I 
I 



23 47.90, 
23 51.221 
36 6.82; 
59 4.02J 
II 58.01 
17 28.56 



0.03 

• • 

1. 91 
o.og 



2.3.4. Bisections at sets B and D. 
5. Seems one rev. wrong. 
7. Observed over Bi, Ci, and Cg. 
37. Last four wires of set E. 
36.43.47. Bisections at wires Ci, C9, and C5. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



113 



B 

3 



1 
2 

3 
4 

5 ' 



Circle 
Division. 



MICROSCOPE MICROMS. 



I 



6 

7 
S 

9 

10 

11 

12 

13 
14 
15 

i6 ; 

17 
i8 

19 

20 



21 

22 

23 
24 

25 
26 

27 

28 

29 

30 
31 
32 
33 
34 

35 
36 

37 
38 

39 

40 

41 
42 

43 
44 

45 
46 

47 
48 

49 
50 



37 56 

39 30 

303 o 

303 o 

31 38 

34 20 
239 38 
310 16 



16 6 

6 40 
33.16 

10 30 

11 43 
307 46 

19 6 
19 2 
31 56 
35 4 
33 30 



344 24 
I 359 48 
; 307 28 
49 18 

52 18 
52 50 

31 58 
9 8 

19 36 
389 16 

47 16 
211 46 
214 8 

39 46 
284 40 
141 46 

39 36 
151 12 

47 6 
155 34 
351 26 
388 s6 
317 56 

38 o 
38 o 

324 34 
34 20 

310 14 

47 40 



I. 



II. 



r. 



n 



II. 6 

18.0 

3.5 

3.5 

15.5 

8.3 
7.8 
9.0 



9.8 

4.2 
9.6 

8.3 
8.1 

8.7 

II. 5 

8.7 

9.5 
10.8 
10.8 

8.0 

10. o 

6.0 

4.8 

9.8 
6.4 

13.5 
II. o 

10.5 

9.3 

9.8 

8.5 

4.0 
8.4 

2.6 

4.3 

II. 2 
4.0 

8.0 

2.8 

5.5 
5.0 

2.8 

6.5 
6.5 

9.5 
5.0 

6.2 

3.5 



8.3 

14.8 

0.7 
0.7 

12.6 

5.0 

6.8 

6.4 



6.5 

29.7 
6.4 

4.3 
5.0 
6.7 

8.2 

5.3 
6.6 

7.8 
8.4 

2.6 
6.2 
4.0 
2.0 

5.8 
3.5 

9.8 
6.7 

7.2 
6.0 

6.5 

8.7 
3.7 

5.8 

0.0 

29.1 

6.7 
2.1 

5.0 
0.0 
1.4 
1.2 
0.8 

2.2 

2.3 

5-5 
0.8 

3.2 
0.8 



III. 



3.6 
8.9 

27.5 

27.5 
6.0 

28.5 

2.5 

2.5 



1.7 

25.8 
i.o 
0.6 
0.9 
3-0 

3.9 
0.6 
I.I 

5.3 
2.8 

1.4 

3.8 

3.7 

38.3 

1.9 
29.3 

6.3 

3.0 

3.5 

4.5 

2.5 
5.2 

1.3 

0.8 

38.0 
36.3 

3.1 
38.0 

0.5 
36.0 

29.3 
0.0 

38.0 
29.3 

29. 3 

4.0 

26.8 

1.5 
26.5 



IV. 



II 



5.3 
II. 3 

0.7 

0.7 

9.5 

2.4 

3.3 
6.0 



3.6 

27.9 

3.7 
2.7 

2.8 

6.4 

6.8 

3.4 
4.9 

5-8 
3.2 

2.7 

4.4 

2.8 

29.8 

4.2 
2.3 

7.2 
6.0 

5.2 
4.2 

4.3 

5.3 
29.5 

5.0 
29.7 
27.1 

5.4 
27.7 

2.8 

26.8 

1.0 

1.2 

26.8 

0.0 
0.0 
6.0 

29-5 

3.5 

27.3 



TELESCOPE MICROMETER. 



Rev. 



24 
29 
27 

38 

24 

38 

24 
30 



23 

24 

25 
36 

17 

32 

23 
28 

27 

27 
20 

21 

23 

25 
28 

33 
31 

21 
24 

29 
21 

27 

28 

27 

23 

28 

23 
22 

24 

26 

29 
22 

24 
24 

29 

31 

23 
26 

22 

22 



I. 



2. 



121 

571 



028 



447 



185 



792 ' 
066 

653 
302 



528 
623 

939 i 



231 
353 



030 

• • 

735 



440 



260 



650 
170 



590 



360 

740 
030 



820 



215 



493 

503 
615 
083 
032 
140 

600 



53 



500 



420 



770 
280 



565 

645 
970 



020 



130 

285 

900 



230 

540 
760 



530 

275 



660 
740 



410 



530 



080 



4. 



184 



840 
856 

410 
150 
350 



890 
540 



060 

■ ■ 

765 



326 
496 
844 
872 
422 

395 
514 
981 

775 
230 

500 
820 

365 
442 



5. 



282 
261 

434 



485 
706 



o o 

^ ^- 
C o 



11 



479 

• • 

532 

■ • 

780 



515 
835 
390 



890 

560 
970 

645 
560 



935 
680 

785 
090 
690 
200 
130 

780 
890 

375 

• • 

400 



995 

• « 

510 
670 
762 



150 

400 
930 



570 



670 
760 



100 

790 
860 
440 
740 



980 
300 

540 
650 



2.3 
2.3 
2.3 
2.3 
2.3 

2.3 
2.3 
2.3 



2.7 

2.7 

2.7 
2.7 

2.7 

2.7 

2.7 

2.7 

2.7 
2.8 

2.8 

2.8 
2.8 
2.8 
2.8 

2.8 
2.8 

2.8 
2.8 

2.8 
2.8 
2.8 

3.8 

3.8 

3.8 
3.8 
3.8 
3.8 
3.8 

3.8 
3.8 
3.8 
3.8 
3.8 

3.8 
3.8 
3.8 
3.8 
3.8 
3.8 



Apparent 
Zenith Dis* 
tance, South. 



37 59 44.1 

39 32 23.3 

303 3 0.9 

303 2 41.3 

31 41 45.6 

34 33 43.0 
329 41 47.7 

310 18 13.3 



16 9 54.4 

6 43 50.6 

33 19 27.3 

10 33 8.3 

11 47 34.9 
307 50 13.3 

19 9 57.6 
19 4 41.9 

31 59 4.4 
35 7 4.6 
33 34 48.4 

344 38 30.3 

359 51 52.3 

307 31 30.6 

49 30 46.4 

52 19 29.3 
52 51 49.2 

33 3 34.0 
9 II 48.7 

19 38 33.7 
389 30 36.5 

47 18 55.6 

311 48 33.3 

314 10 55.3 

39 49 54-9 
384 43 54.1 

141 50 I.I 

39 40 18. 1 

151 15 52.5 

47 9 9-4 
155 36 41.7 
331 30 19.3 
388 59 43.0 
317 59 48.4 

38 3 35.3 

38 I 51. I 

324 38 2.5 

34 23 16.7 
310 18 13.6 

47 44 14.9 



I 

a 

o 

a 



618 

630 



634 

704 
704 



703 

703 



708 
708 



610 



705 



Refraction. 



-h 



+ 



-f- 



4- 
+ 



-h 



-f 



4- 



-+- 



n 



46.0 
48.7 
30.4 
30.5 
36.4 



-h 40.4 

■+■ I 9-5 

- I 9.5 

+ 17.5 

+ 7.1 

+ 39.6 

-h II. 2 

+ 13.6 

- I 17.4 






30.9 
30.8 

37.6 
41.8 

25.9 



— 16.5 

— O.I 

— I 16.4 

+ I 8.3 

4- I 15.4 

+ I 16.8 



3 
I 



36.4 
9.5 

31. 

45.9 

3.7 

36.5 

40.1 



49-3 

3 41.9 
46.6 

49-3 
32.6 

1 4.3 
37.1 

32.5 

2 52.7 
46.9 

47.1 
47.1 
43.8 

41.3 
I II. I 

I 6.4 



Apparent N. 
P. Distance. 



n 



89 6 51 

90 39 23 

354 7 51 
354 7 32 

83 48 43 

85 29 44 
I 23 34 
I 33 23 

67 i6 33 

57 50 18 

84 26 28 

61 39 40 

62 53 58 
358 55 17 

70 16 39 

70 II 33 

83 6 3 

86 14 7 

74 41 35 

35 34 35 

50 58 13 

358 36 35 

100 38 15 

103 37 5 
103 59 27 

83 9 21 
60 18 19 

70 45 4 
340 34 I 

98 36 30 
19 17 12 

16 54 45 

90 57 5 

335 45 33 

89 17 6 

90 47 38 
79 51 I 

98 16 34 

75 30 6 
33 36 7 

340 3 10 
13 5 45 

89 9 43 
89 8 59 
15 43 40 

85 30 19 
I 33 22 

98 51 42 



3 

2 

7 
o 

2 

6 
o 



9 
I 

7 
7 
o 

7 

9 
2 

6 

5 

o 

4 
4 
9 

9 

2 

6 

4 

9 

8 

5 

5 
8 

4 
4 
7 
6 

3 

8 
6 

9 
5 

9 

5 

4 

9 
2 

7 
5 



Miscellan'us 
Corrections. 


n 


- 1.3 


-I-2I.3 


4- 1.6 


— 16.2 


— 0.2 


4- 0.4 


-h 0.3 


— O.I 


+ 33.7 


-h 0.2 


- 1.3 


-f 0.5 


-h 0.7 


4-II.3 


+ 11.5 


— 1.2 


- 5.3 


4- 2.0 


— 0.8 


— 2.2 


-• I.I 


— 2.1 



- 7.0 

- 7.1 

4- 2.8 
+ 0.1 

4- 0.4 
4- 3-2 

- 3.1 

- 0.4 

- 0.5 

- 10. 1 
-f 6.5 

- 2.8 

- 0.7 

- 0.3 

- 0.4 

+ 15.6 

- 1.4 

4- 2.7 

- 1.8 

- 1.3 

- 1.3 

- 1.8 

- 0.3 

- 0.6 
4- 1.0 



No. Barom. 



m. 



External 
Therm. 



Attached 
Therm. 



No. 



MOON'S— 



For summary of thi elements of reduction see page 3. 



Parallax. 



It 



- 35 0.3 



Semi-diam. 



/ II 
- 15 5-3 



15 



114 



OBSEBYATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
Oct. 29 



30 



Nov. 2 



S 
2 



I 

2 

3 
4 
5 

6 

7 
8 

9 
10 

II 
12 
13 
14 

15 
16 

17 
18 

19 

20 
21 
22 
23 

24 

25 
26 

27 

28 

29 

30 
31 
32 
33 
34 

35 
36 

37 
38 

39 

40 

41 
42 

43 

44 

45 
46 

47 
48 

49 



OBJECT. 



Moon I, S. . 
a* Geminorum 
a Canis Minoris 
/? Geminorum . 
^ Geminorum 

X Urss Min., S. P. . 
C Praesepe 
I Pracsepe 
c Hydrae .... 
Venus I, C. S. 



Venus II. N. C 
a Canum Venat. 

Polaris, S. P. 
a Virginis 



Sun S. . . 

Sun II, N. . 
d Ophiuchi . 
a Scorpii . 
17 Herculis . 

K Ophiuchi . 
e Ursae Minoris 
a Aquarii 
32 Ursac Maj., S. 
T Aquarii, (R.) 

^ Aquarii 

f Pegasi, (R.) 

A Aquarii 

a Pegasi, (R.) 

Cephei . . 



Draconis, S. P 
[upiter I, N. 
Jupiter II, S. 
21 Cassiopeae . 
Neptune . 



J: 



Polaris 
7 Piscium 

Moon I, S. 
y Ceti 

p Ceti . . 

Neptune 
g Piscium 

Polaris . 

Moon II, S. 

j3 Tauri . 
6 Orionis 
Uranus 
o* Geminorum 
A Canis Minoris 
P Geminorum 



t 
o 

O 



E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
F. 

F. 
F. 
F. 
F. 



•r 
^ 



SECONDS OF TRANSITS OVER WIRES. 



I. 



9.3 

44-9 

59.8 



II. 



59.9 



48.1 

• ■ 

23.1 
28.8 



3 
3 



F. 
F. 

F. , 
F. 

F. 

F ! 
F ' 
F, I 
J. 

F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 



N. 
N. 
N. 
N. 
N. 

N. 
N. 
N. 
N. 
N. 
N. 



3 
3 
3 



2 

2 



3 
3 



2 

3 
3 
3 
3 

3 

3 

2 

I 
2 
2 



49.051.9 



52.8 
52.4 

59-9 

• • 

36.7 

8.6 

II. o 

29.1 
20.2 
47.5 



32.9 



2.3 
29.3 

5.0 



33.4 
15.5 
10.8 



I.I 



32. 

52.1 

4.0 

• ■ 

590 

48.3 



12. 1 

47.8 

2.4 



III. 



IV. 



14.0 19.9 



2.9 



50.7 

25.7 
31.0 



52.0 



40.9 

• • 

55.7 
55.7 

4.0 

• • 

39.2 



49.7 

3.8 

53.6 

4.3 



V. 



22.3 



VI. 



57.0159.4 

io.di2.3 

0.61 2.9 

11.2,13.6 



11.022.030. 

52.359.0! 1.2 
30.2132,534.6 

27.2^33.4135.4 
32.9 



049 



37.8 



40.042.1 



40.014.0 
53.557.9 



50.o{29.o 
0.2 



42.845.047.1 

37.5 
57.3 4.6 
57.6 5.5 



7.0I 
8.1 



8.1 10.2 12.2 
38.0, . . 
40.646.849.0 
22.1 17.2 12. 1 
II. 1 12.618.920.9 



13.5 
31.6 
22.7 
50.1 
52.9 



15.021. 1 

33.ii39.4 
24.230.5 

51.558.0 

58.2! 3.5 



23.2 

41.5 
32.6 

o.oi 

8.8 



40. 041. 0*29. 5 23.417.5 
i.oj 3.6 5.0 . . I . . 
12. 414. 716. 7 



3.6 

• ■ 

35.6 



4.8 

32.0 

7.6 



45.5 
36.842.9 



40.0 
6.5 



I.O 

12.9 



33.6|39-9 
9.015.2 



36.037.6 

17.919-4 
13.3 14.8 
45.0 



2.6 



035 



7.0 



.036.6 
54.656.0 
8.6 



7.2 

• • 

1.6 
51.252.8 



3.2 



44.1 

25.5 
20.9 

9.0 
9.4 

43.7 
2.2 

15.3 

• • 

9.3 
0.0 



24.3 
1.8 

14. 1 

5.3 
16.0 



VII. 



VIII IX. 



.01 

3.3 

36. 

37.2 



639 



44.0 



49 

40.5 

8.8 

10.8 

14.2 
22.5 
51.0 

7.1 
22.8 



053 



25.2 
43.4 

34. 
2.0 

14.0 



30.332.034.5 
9. Olio. 913. 6 
20.3 21.81 24. 4 
12.3 13. 9*16. 8 
22.824.5127.5 



Mean wire, 



1.0 
9.8 
.0 
43.4 
49.4 



46.1 



2.0 



3 

41.5 

15.7 
18.5 

16.4 
38.6 
57.0 
2.0 
29.0 



"5 



14.5 



45.0^47.6 
50.953.2 



55.0 

42.7 
17.3 



57.7 

43.7 
20.1 



20.723.9 



20.3 
58.6 



24.7 



I.I 



30.533.1 



31.3 
49.6 

.8 

8.4 

24.6 



640 



59.3 
45.0 

30.0 
15.0 
42.0 
17.2 

46.4 
27.6 
23.1 
34.0 
11.5 

46.0 

4.3 
17.5 

• ■ 

II. 4 
2.2 



II. 7 

• • 

18.5 
6.9 

47-1 

52.0 

17. 1 

44.1 
19.3 



5.9 
21.5 
20.6 

21.6 
53.1 

19.6 

23.5 
50.5 

25.5 



32.8 
51.2 

42.3 
10. o 

28.9 

53.6 
22.9 

■ ■ 

28.0 
54.6 



48.455.0156.7 



29.7 



35.4 
53.8 

44.9 
12.7 

35.1 

49.2 
25.5 

37.7 
57.2 



25.1 

51.9 
27.029.5 



27.5 
54.7 



35.7 



25.031.332.6 
57.023.5 . . 

13.7 15.920.3 

48.355.3157.0 
6.3I12.514.Q 

19.7 26.5 28. 1 
. . I 8. 310. 01 

13. 419. 621. 2 
4.5111.513.2 



37.3 



59-3 

39-8 

35.4 

• • 

22.0 

0.0 
16.5 

30.9 
13.0 

23.7 

15.4 



m. s. 
25 22.08 

25 59-34 
32 12.10 

37 2.92 

45 13.63 

55 34.18 
30 1 . 16 

32 34.58 

39 35.33 

40 41.03 

40 42.00 



CORRECTIONS. 



Inst. 



II 50.68 
18 1.98 



21 44.96 

7 13.00 
21 6.59 
38 8.13 

51 12.22 
59 8.10 
58 48.89 

8 12.10 
18 20.83 

28 23.17 
34 41.41 

45 32.53 
58 0.02 

13 3.46 

23 17.53 
23 13.25 
23 16.58 

36 52.19 
58 45.02 



Clock 



Clock 



appar'nt adopted. 



s. 

- 0.35 

- 0.21 

— 0.33 

— 0.23 

— 0.24; 

— 9.22 

— 0.27 

— 0.27 

— 0.32 

— 0.40 

— 0.40 



s. 



-I-13.84 
+13.94 
-H13.89 



Apparent R. 
Ascension. 



o o 



s. 



".55 
0.47 



II 28.68 +10.82 



— 0.49 

— 0.43 

— 0.58 

— 0.16 

— 0.36 

-h 2.25 

— 0.42 

— 0.96 

— 0.28 

— 0.42 

— 0.21 

— 0.46 

— 0.18 
-H 0.28 

— I.I2 

— 0.41 

— 0.41 
+ 0.60 

— 0.39 



24 14.97 
15 42.00 

36 17.26 

36 46.32 
58 27.60 

I 23.02 

It 34-02 
3 ".50 

17 45.99 

25 4.28 

15 17.53 
25 58.60 

32 11.38 

37 2.17 



- 0.33 

- 0.37 

- o. 



0.45 

0.35 

0.35 

5.13 
0.31 

0.25 

0.37 
0.28 

0.25 

0.35 

0.26 



• • 



• • 



• • 



+ 13.91 



H-J3.74 



+ 13.90 
+ 14.03 



+ 13.95 

» • 

+ 13.95 

+14.00 
+ 13.98 



40 + 



+14.00 

• • • 

14.06 



+ 14.65 



* . 



+14.69 

+14.77 

• . 

+ 14.77 
+ 14.60 

+ 14.81 



+13.75 
+ 13.82 

+13.82 

+ 13.82 



+ 13-95 +13.83 



+13.83 
+13.84 
+13.84 
+13.84 
+13.84 

+13.84 



+13.86 
+ 13.86 



+ 13.88 
+ 13.90 
+ 13.90 
+ 13.91 

+ 13.91 
+ 13.92 
+ 13.98 
+ 13.99 
+13.99 

+ 13. 99 

+13.99 
+14.00 

+ 14.00 

+14.00 

+ 14.00 
+14.02 
+ 14.02 
+14.02 
+ 14.03 

+ 14.03 
+14.03 
+14.04 
+14.05 

+ 14.71 
+ 14.72 
+14.72 
+ 14.72 
+14.78 



+14. 



h. m. s. s. , 

1 25 35.48+63.21 
7 26 12.95+ 0.18 
7 32 25.59- o-U 
7 37 16. 51;— 0.07 

7 45 27.2*— 0.16 

19 55 38.79- 0-5? 

8 30 14.73+ 492 
8 32 48.15+ 4 95 
8 39 48.85— 0.07 

II 40 54.47 • 

i 
II 40 55.44 . 



I II 53.991 
13 18 15.37 



79 

. 79 

+14.82 



+14. 



+14 
+14 
+14 



.82 
.82 
.83 



- 3.05 
+ 0.13 



14 21 58.35-66.81 

16 7 26.47+ o« 

16 21 19.91 — O.ll 

16 38 21.88'- 0.02' 

16 51 25.77!— O.OI 

16 59 24.27!+ 0.36 

21 59 2.45 + 0.02 
10 8 25.13— 0.31 

22 18 34.54+ 0.08 



22 28 36.74 

22 34 55.191 + 
22 45 46.07 

22 58 13.84 

23 13 17.74 



II 
O 
O 
O 
O 



23 30.41 
23 26.86 
23 30.19 

37 6.81 
58 58.66 



— 0.01 
0.03 

+ 0.08 

— 0.01 
+ 0.12 

— 0.04 



+ 0.08 



1 11 53-53- 2.45 

1 24 28.67 + 00® 

2 15 55.67+64-46 
2 36 30.91 — 0.01 



0.58 
41.97 
37.39 
53.87 



o 37 

58 

1 I 
I II 
5 3 25. 7^-69.14 



+ 0.09 



— 316 

- 1.74 



5 
5 

7 
7 
7 
7 



18 

25 
15 
27 
32 
37 



I 

0.53.+ 0.09 
1S.70J 0.00 
32.07. . 



13.17 
25.85 
16.74 



+ 0.J5 
0.00 

+ 0.02 



I. Bisections at wires III-V. 
5. Wire A used. 
17. R. A. over set E. 
21.23.33. Bisections at sets B and D. 

36. Micrometer reading suspicious. 

37. Bisections at wires II-VI. 



OBraSYATIOKS WITH THE TRANSIT CIBCLE. 



115 



B 

a 

Z 



Circle 
Division. 



I I 

2 

3 
4 
5 

6 

7 
8 

9 

10 

II 

12 

13 
U 

i6 

17 
i8 

19 

20 
21 
22 

23 
24 

25 
26 

27 
28 

29 

30 

31 
32 
33 
34 

35 

36 

37 
38 

39 
40 

41 
42 

43 

44 
43 

46 
47 
48 
49 



35 
6 

33 



7 
40 
16 



10 30 

11 42 

307 46 
19 6 
19 2 
31 $6 

35 «8 

35 28 
359 48 
307 28 

49 18 

53 8 
52 36 



64 56 

359 38 



316 36 

39 46 
284 40 
141 46 

39 36 

151 12 

47 6 

155 34 
331 26 

288 56 
38 o 

38 o 
324 34 

34 20 

310 14 
24 10 

30 54 

36 8 

37 32 
34 22 

33 52 

310 14 

21 16 

10 20 

39 14 
16 6 

6 40 
33 x6 
xo 30 



MICROSCOPE MICROMS. 



I. 



r. " 

12 16.4 

3.2 
12.5 

7.3 
7.3 

4.7 

9.2 

II.O 

12.2 

8.0 

8.0 

7.4 
5.4 
9.0 

7.9 
9.8 



5.0 
6.9 



4.2 
7.6 
5.0 

5.1 
7.5 

8.0 

ID 12.3 

7.0 
3.1 

4.0 

8.1 
8.1 

7.0 
6.9 

4.8 

II. 8 

10 12.4 

10.6 



10 



7.8 

7.7 

9.4 

7.1 
10. 5 

7.0 
9.1 

8.5 
5.7 
8.0 
8/2 



II. 


III. 


If 


tt 


".4 


8.7 


1.7 


26.5 


9.5 


6.4 


4.2 


0.2 


3.5 


1.2 


1.5 


29.5 


3.8 


1.2 


6.5 


4.0 


7.6 


3.5 


4.9 


0.9 


4.9 


0.9 


4.3 


2.0 


3.5 


1.2 


6.7 


3.3 


4.3 


0.2 


7.8 


3.0 


2.8 


28.4 


4.6 


2.7 


2.6 


1.3 


4.0 


29.1 


3.1 


I.I 


2.9 


28.5 


4.2 


29.4 


5.5 


1-9 


9.5 


4.5 


3.8 


29.6 


0.3 


27.6 


1.6 


0.0 


4.3 


0.4 


4:3 


0.4 


3.9 


1.9 


2.0 


27.5 


2.2 


29.9 


8.1 


4.1 


10.5 


5.2 


6.7 


2.4 


4.3 


28.7 


2.9 


27.2 


4.8 


29.8 


3.9 


I.O 


6.7 


3.0 



IV. 



ft 



8.5 
26.0 

7.6 

I.I 

0.5 

I.I 

2.3 
5.5 

6.4 
2.0 

2.0 

3.0 

3.3 
3.1 

3.1 



3.6 

5.3 
4.7 

2.0 

5.4 

^.o 



0.6 
1.3 

0.7 
28.9 

0.8 
^.7 



0.3 
2.8 



1.3 
2.9 

3.3 
29.6 

3.1 

2.8 

7.2 

0.6 

29.1 

2.7 
3.7 
3.7 
3.1 
I.I 

2.7 
6.4 

7.9 
6.0 



2.3 
1.8 

3.4 
4.0 

6.0 

2.6 
3.6 
3.0 
0.8 
3.0 
4.0 



TELESCOPE MICROMETER. 



Rev. 



20 
26 

25 
21 

28 

23 

23 
28 
26 
26 

27 
23 

25 
28 



25 

27 



25 
27 



26 

23 

28 

23 

22 

24 
26 

27 
22 

25 

24 
20 

23 
23 

22 

26 

25 
23 

29 

25 

24 
22 

26 

23 

28 

25 

26 

25 

26 



I. 



750 



000 
710 



820 
320 



425 



278 
008 
348 



400 

• • 

672 
929 



2. 



860 



560 

810 



990 
620 



880 



652 
691 

438 



985 



013 



147 
250 



502 



742 



186 
198 

340 



701 
140 



445 



798 



332 
988 
236 

749 

228 
072 

570 
867 



935 



910 



366 



102 



196 



443 



836 



458 
no 

260 



702 

138 

811 
401 



750 



4. 



000 
710 
290 
765 
185 

660 



455 
920 



714 

784 
460 



005 



948 



174 

228 
780 

242 

938 
488 

761 
656 

910 



831 
648 



845 
690 

230 



585 

• ■ 

8a4 



834 
411 
918 

787 



970 
480 



305 
780 



780 
030 



296 
294 



700 



220 
127 
163 



228 

• • 

496 
726 
617 



792 
093 

221 
400 

• ■ 

746 
315 

675 
305 
890 

• • 

635 



891 

• • 

108 

828 

593 
035 

082 

170 
344 

• • 

726 
400 



271 
810 
466 
612 



.S c 
c o 



If 



2.6 
2.8 
2.8 
2.8 
2.8 

2.8 
2.8 
2.8 
2.8 

3.7 

3.7 
3.7 
3.7 
3.7 

3.7 
3.7 



3.7 
3.7 



3.7 
3.7 
3.7 
3.7 

3.7 
3.7 
3.7 
3.7 
3.7 

3-7 

3.7 
3.7 
3.7 
3.7 

3.7 
3.7 

3-7 
3.7 

3.3 
3.3 
3.3 
3.3 
3.3 

3.3 
3.3 
3.3 
3.3 
3.3 
3.3 



Apparent 

Zenith Dis* 

tance, South. 



fi 



35 II 32.2 
6 43 16.7 

33 19 25.7 
10 33 10.7 

21 47 22.0 

307 50 II. 7 
19 9 58.4 
19 4 40.8 

31 59 5.4 
35 31 20.1 

35 30 57.0 
359 51 57.4 
307 31 32.4 

49 20 44.7 

53 II 22.6 
52 39 3.7 



I 

S 
o 

S 



64 59 40.5 
359 40 55.8 



316 39 20.7 

39 50 8.0 

284 42 49.1 

141 49 59.3 

39 40 20.1 

151 15 52.4 

47 9 9.8 

155 36.55.9 

331 30 17.3 

288 59 38.6 
38 3 50.8 

38 4 40.0 
324 38 2.0 

34 23 54.2 

310 18 13.3 

24 13 9.1 
30 57 23.5 
36 12 4.3 

57 34 33.1 
34 25 32.5 
33 55 39-6 
310 18 12.7 
21 19 16.0 

lo 23 57.5 

39 16 45.5 
16 9 23.6 

6 43 16.0 
33 19 26.7 
10 33 8.7 



760 
712 



668 
658 



624 
598 
594 



594 
654 



656 



662 



Refraction. 



+ 



674 
676 

• • 

679 
676 

» • 

683 
721 



721 

728 






fi 



+ 
4- 

— I 



42.6 
7.2 
40.2 
II. 4 
12.7 

18.5 
21.2 
21. 1 
38.1 
43.0 



+ 43.0 

— O.I 

- I 17.4 
-f I 9.2 

+ I 18.8 

+ I 17.3 



-f 2 



5.1 
0.3 



- 55.3 
■+■ 49.6 

- 3 42.9 

- 46.7 



49-3 

32.7 

I 4.1 

27.0 

32.3 



— 2 



-H 



51.6 

46.7 
46.8 

42.4 
40.9 



— I 10.4 

4- 26.9 

+ 35.8 

+ 43.8 



4- I 



— I 



33.9 
41.0 

40.3 
10.5 

23.6 

II. I 
49.4 
17.5 
7-1 
39.8 
II. 3 



Apparent N. 
P. Distance. 



ft 



86 18 36.0 

57 49 45.1 
84 26 27.1 

61 39 43.3 

62 53 55.9 

358 55 14.4 
70 16 40.8 
70 II 23.1 

63 6 4.7 
86 38 24.3 

86 38 1.2 

50 58 18.5 

358 36 36.2 

100 28 15.1 

104 19 2.6 
103 46 42.2 

116 8 6.8 
50 46 16.7 



7 44 46.6 
90 57 18.8 

335 45 27.4 

89 17 S.6 

90 47 30.6 

79 51 1.5 
98 16 35.1 

75 29 52.3 
22 36 6.2 

340 3 8.2 
89 10 58.7 

89 II 48.0 
15 43 40.8 

85 30 56.3 

I 23 24.1 

75 19 57.2 
82 4 20.5 

87 19 9-3 

108 42 28.2 

85 32 34.7 

85 2 41. I 

I 23 23.4 

72 26 0.8 

61 30 29.8 

90 23 56.1 
67 16 2.3 

57 49 44.3 
84 26 27.7 
61 39 41.2 



w en 

-^ s 

.2 o 



M 



- 0.2 

- 0.9 

+ 1.3 

- 2.4 

- 1.9 

H-ii.i 

4-11.4 
4-0.1 

- 5.3 

- 5.3 
4- 2.6 

- 0.7 

- 3.0 

- 7.1 

- 7.0 

4- 0.8 
4- 0.2 



4- 1.8 

4- 3.3 
4- 0.7 

- 0.9 

4- 1.3 

- O.I 

- 0.2 
4- 1.3 

- 2.9 

4- 0.7 

- 1.3 

- 1.3 

- 1.5 

- 0.2 

4- 1.2 
4- 5-2 

- 0.7 

- 1.4 

- 0.2 
—22.1 
4- 1.6 



1.5 
1.7 

O.I 

1.3 
0.7 
1.2 



SBB 



No. 



Barom. 



42 

46 



in. 
30.163 
30.162 



External 
Therm. 



38.6 
32.6 



Attached 
Therm. 



61.0 
63.1 



/•r xummflry of the tUwtefUs ofnd^ctipn tee page 3. 



No. 



I 
37 
43 



MOON' 



Parallax. 



If 



31 57.4 
28 47.4 
20 50.9 



Semi-diam. 



If 



*• 15 13.5 

— 15 22.9 

— 15 48.1 



116 



OBSEBYATIOMS WITH THE TBAN8IT CIBCLE. 



DATE. 



1868. 
Nov. 2 



2 



I 

2 

3 
4 
5 

6 

7 

8 

9 
10 

II 
12 

13 

14 

15 
16 

17 

18 

19 
20 

21 

22 

23 

24 

as 

26 

27 

28 
29 
30 

31 
32 

33 
34 
35 
36 
37 

38 

39 
40 

41 
42 

43 

44 

45 
46 

47 

48 
49 



OBJECT. 



i 



Geminorum 

Ursae Minoris.S.P. 
p Argus . . 
I Pracsepe 
/} Leonis . 

Venus II, S. 
a Canum Venat, 

Polaris, S. P. 
a* Virginis 
7 Ursae Majoris 

7 Bootis . 
a Bootis . 

Sun I, N. . 

Sun II, S. . 
a Coronas Borealis 
a Serpentis . 
rt Scorpii . 



\ 



Herculis 
Ophiuchi 
Herculis 
Draconis 
Ursae Minoris 



K Cephei, (R.) 

e Delphini 

a Cygni. (R.). 

fi Aquarii 

C Cygni . . 

I Pegasi . . 
24 Ursae Majoris, S. P 
f Aquarii 

II Cephei, (R.) 
79 Draconis, (R.) 

a Aquarii 

32 Ursae Maioris, S. P 

If Aquarii, (R.) 

7 Aquarii 

C Pegasi, (R.) 

A Aquarii 

a Piscis Australis 

a Pegasi, (R.) 

o Cephei . 

X Draconis, S. P 

y Cephei, (R.) 
a Andromedae 
y Pegasi . . 

Jupiter I, S. 

Jupiter II, N. 

K Draconis, S. P 
21 Cassiopeae . 



t 

o 



N. 
N. 
N. 
N. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
N. 

N. 

N. 
N. 
N. 
N. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 



.50 
'S 



2 

3 

2 

2 



4 
5 

4 
4 
5 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



I. 



II. 



590 



III. IV. 

i 




2.0 



VII. VIII! IX. 



3.810.5 12.9 15.021 
o.o'io.o!23. 035.0 . 

38. 5.40. 843. 045. 247. 453. 5 56 
20.8123.5 25. 031. 6 33. 8 35. 9(42 

53.0.55.7157.2 3.7I 5.8 7.814 



45.0147.649.355.457.459.5 5 
20.323.625.533.5136.138.7.46 

37.0 9.5'46.5 33.ol48 
. . . . '25.628.829 

45.4.49.451.7 I.I 4.4 7.717 

56.659.2I 0.7! 7.3 9.511.718 
10.8 13.615.1121.823.926.0-32 



0.0 

14.3 
37.3 



2.4 
17.0 

40.3 



4. 010. 012. 3 14 
18. 4|24. 8127.0,29 

4l.9|49.05i.o'53 

. . i . . I . . I . . .56.4 59 

52.054.9.56.3; 3.3 5.5 7 



.621 

.335 



.4 
.4 
.7 



o 
o 

14 



10.913.5 15. 1 21.623.625 
21.924.5 26.o'32.4 34.5 36 
49.452.253.8 o.7| 3.11 5 
57-0 1.3' 3.7 13. 7.17. 020 
. . 29. 018. o' 6.5 53 



I 
I 

.832 
.5:42 

.4'l2 

.230 

.043 



. ' 9.5.18. 5;37 
28. 7'3i. 3 32. 8 39. 2 41. 3 43. 349 



25.0:28.530.5 



6.7 
52.0 



9.7 



9'3;io.7 
54.956.6 



2.3 



57.9 



39.342.345.0 

I7.0;i9.221.2 
3.7 6.1J 8.4 



39-3 



18. 421. 022.5128.9 
8.1 i6.o|20.3|39.7 

'47.753.3 



11.8.15.2 

33.527.3 
30.9!32.8 

45.3*51.1 
0.0 7.7 



35.4:38. 0,39. 545. 747. 7,49.7 
41.5135.031.5 16. on. 2I 6.3 

7.4!io.oii.4|i7.4;i9.6 2i.5 

9.8'i2.4'i3.8>20.022.i 24.1 

28. o!30. 5 32.0,38.1 40.242.3 



19.021.523.029.331.333.4 



55.058.0 
46.349.0 



59.6 6.5I 9. on. 4 



50.5 

51.3 
52.745.041.0 

I29.5 
8.411.5 13.2 



56.758.8 
56.4! 2.1 
28.5,16.7 



39.2 
20.0 



48.2 
22.5 



i.ol 

7-3 
4.9 



53 
27 
15 

16 

9 

39 
10 

15 

55 
51 
27 
30 
48 

39 

18 

7 

13 
53 



2.0; 4.7] 6.1 12.4 14.6 
41.4*43.945.4 . . I . . 

52.654.656.7158.6 



10.7 

5.7 



56.8 

24.7 
16.823 

I 



6 
31 



1.857.6 



39.1 



15.1,20.7,43.5 



32.8 
51. 1 



27.0 

58.5 



8 
21 



823.7 



3' 9.8 
4440 



26.4 

23.3 

46.8 



1 15.7 18.4 



5 7.3 
748.6 

5l. . 
830.8 

219.7 



Mean wire. 



2 19.922.4 



9.6 
51.9 

• • 

31.9 
23.5 



634.1 



222.5 
637.2 



2.0 

1.6 



61x6.2 



36.9 

25.3 
40.0 

4.9 
2.6 

19.3 



033.636.2 

744.4*47.0 

414.1 16.9' 

032.4 36.4, 

o . . 

I 

2'44.o|55.6 
551.053.7 



7|55.8 
428.9 

17.4 



17.5 

4.2 

40.6 

14.5 



59.3 

31.5 
20.2 

18.5 
56.7 
43.2 
22.2 



0.0 

41.6 



57.3 
947.8 

8;29.3|32.o| 

3I31.8I34.4 
750.1 52.8 



41.2 

20.3 

9.0 

• • 

48.4 



33.5 

24.7 

3.4 



3.3 
27.0 



43.7 
23.2 

11.5 

• • 

40.9 



36.3 
27.2 

6.0 



56.0 
36.1 



Inst. 



Clock 
appar'nt, 



m. 



s. 



45 12.79 
55 22.65! 
I 43 00' 
32 33.76' 
42 5.71. 

57 57.40 
49 36.10 
II 46.58 
18 0.79 
42 4.46 

48 9.50 
9 23.87 



35 12.48 — 
37 27.07 
28 51. II 

37 31.77 
21 5.53- 

8 23 59- 

28 34.43|- 

41 3."- 
53 i6.86|- 

55 6.30,-}- 



13 0.03 + 
26 41.20 — 
36 42.16 + 
44 19.10 — 
7 6.09 — 



s. I t. 
0.27I+14.96 

7.231 . . 
0.48 +14.86 
0.30 . . 
+ 14.94 



- 0.33 



0.39 . . 
0.20+14.95 

7.74 . . 
0.44+14.96 

0.13' . . 



0.31 
0.30 

0.46 
0.46 
0.27 
0.36 

0.53 



+ 15.03 
+ 15.03 



+1506 

+ 15.07 
+ 15.03 



15 
22 

30 

39 
51 



46.08 

33.23 
30.81 

45.24 
0.76 



0.33 +14.96 

0.34+14-97 
0.26I+15.02 
o. 10 
9.20' . . 

I. or 

0.35 +15.12 

0.06 

0.44+15.08 

0.25 +15.07 



— 0.31 

— 0.84 

— 0.45 
+ 0.62 

+ 0.73 



58 47.67 
8 11.43 
18 19.60I 
28 22.08' 
34 40.30 

45 31.32 
50 9.06 

57 58.90 
13 2.10 
23 16.79 



+ 15.06 
+ 15.04 



0.40+15.09 
0.70 . . 
0.26 . . 
0.40 +15.02 
0.20' . . 

0.451 + 15.14 
0.56 +15.01 
0.18 

O.II 



— 0,81 



33 47.98 + I. 01; . . 
I 22.43— 0.26+15. 13 



6 14.62 

21 53.65 
21 56.68 

27 32.93 
36 50.99 



- 0.33 

- 0.39 

- 0.39 

- 0.82 
+ 0.31 



+ 15.10 



Clock 
adopted. 



Apparent R. 
Ascension. 






s. 


+14.83 


+14.83 


+14.83 


+14.84 


+14.93 


+14.93 


+14.95 


+14.96 


+14.96 


+1497 


+ 14.97 


+ 14.98 


+ 14.99 


+ 14.99 


+ 15.01 


+ 15.01 


+ 15.02 


+ 15.04 


+ 15.05 


+ 15.05 


+ 15.05 


+ 15.03 


+ 15.03 


+ 15.04 


+ 15.04 


+ 15.04 


+15.05 


+15.12 


+ 15.12 


+ 15.12 


+ 15.12 


+ 15.13 


+ 15.13 


+ 15.13 


+ 15.14 


+ 15.14 


+ 15.14 


+ 15.15 


+ 15.15 


+15.15 


+ 15.15 


+ 15.16 


+15.16 


+ 15.17 


+ 15.17 


+ 15.18 


+ 15.18 


+15.18 


+ 15.18 



h. ni. s. ^ s. 

7 45 27.35- 0.17 
9 55 30.25— 3.91 

8 1 57.35- 0.05 
8 32 48.30+ 4.S2 
I 4a ao.31 0.00 



1 58 11.94' . . 

2 49 50.85+ O.OI 
I II 53. 8O!— 1. 71 

3 18 15.31+ O.OI 

3 42 19.30,+ o.oS 



3 48 24.16,— 0.09 

4 9 38.55- 0.04 



35 

37 
29 

37 
21 

8 
28 

41 
53 
55 



20 13 
20 26 
20 36 

20 44 

21 7 



21 

9 



16 
22 



21 30 
21 40 
21 51 



27.01 
41.6a 

5.85- 
46.42 - 

20.02 -h 

I 

38.30 + 

49- 14 + 
17.90 + 
31.81 - 
30. 53 - 

16.07 + 
55.89- 
57.26- 

33.70- 
20.89 — 

0.89 — 
47.61' + 
45.48 + 

0.98 — 
16,62 + 



21 59 2.40 
10 8 25.86 

22 18 34.48 
22 28 36.82 
22 34 55.24 



0.05 
0.06 
0.01 

0.08 

O.OQ 
0.03 
0.12 

2.93 

0.27 
0.07 
0.03 
0.02 
0.03 

0.02 
0.32 
0.06 
0.16 
0.31 



+ 0.03 

+ O.T? 

+ cog 

+ 0.12 

-r 0.13 



22 45 44.02 + 

22 50 23.65 + 

23 58 13.87 

23 13 17.14 
II 23 31.14 



23 34 
o I 
o 6 
o 22 
o 22 



4.15 

37.34 
29.46 

8.44 
11.47 



O.oS 
+ 0.13 
+ 0.07 
— 0.34 

+ 0.4S 

+ 0.05 
+ 0.04 
+ 0.0? 



12 27 47.29+ o. 10 
o 37 6.48— 0.14 



3. R. A. observed over set C, Di, D3, VI, and VII. 
6. 13. 14.46.47. Wire B used. 

9. 16.28. R. A. over set E. 

33. Seems five revs, wrong in N. P. D. 
43. Seems one rev. wrong. 
49. Bisections at sets B and D. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



117 



- S 

I 3 



I 

2 

3 
4 

5 



I 



Circle 
Division. 



6 < 

7 . 

8 I 

9 
10 , 

11 

I 12 

I 

13 

14 

I 15 
i6 

17 

]8 
19 

20 
21 
22 

23 

24 

25 
26 

27 

2d 

29 

30 

31 
32 

33 

34 

35 
36 

37 

38 

39 
40 

41 
42 

43 
44 
45 
46 

47 

48 
49 



U 44 
307 46 

62 44 

19 2 

23 30 

37 10 
359 48 
307 28 

49 18 
348 52 

19 46 

18 s8 

53 54 

54 26 
II 40 

31 58 
64 56 

24 18 

26 10 
II 2 

347 20 
309 56 

218 20 

27 58 
185 52 

48 18 

9 8 

19 36 
289 16 

47 16 
211 44 
214 8 

39 46 
284 40 

141 46 

39 36 

151 12 

47 6 
69 6 

155 34 
331 26 
288 56 

217 56 
10 28 
24 22 

38 10 
38 10 



324 34 



MICROSCOPE MICROMS. 



I. 



r. " 

6.0 

4.7 

4.1 

7.1 
8.2 

9.7 

8.4 
4.0 

12. 1 
7.3 

6.2 

5.3 

4.3 
6.3 
8.5 
7.5 
9-3 

12.2 
9.1 
3.0 

3.8 
3 8 

4.5 
7.0 

71 

8.8 

7.8 

3.4 

9.5 
12. 1 

5.0 

6.1 

9.0 
29.6 
10.2 

7.2 
10.2 

9.4 
9.8 
6.0 

7.5 
7.4 

8.5 

9.3 
4.6 

12.2 

12.2 



29.2 



II. 



n 



3 

2 

I 

3 
3 

4 

5 

I 

7 
3 

3 

I 

o 

2 

4 
3 
5 

7 

5 

28 

29 
29 

4 

3 
6 

6 

4 

2d 
5 

9 
4 
7 

5 
28 

8 

3 
7 

6 
6 

3 

4 
6 

8 
6 

2 

9 
9 



7 
7 
3 
7 
7 

8 
o 

5 
3 
4 

5 
4 

7 

4 

5 

5 
8 

o 
o 

2 
2 

5 

4 

2 

5 
5 

2 

7 
4 

5 

8 

2 

5 

I 

2 

7 
o 

9 

2 

8 

5 
4 

5 

I 

5 
o 

o 



26.3 



III. 



0.5 
29.9 

27.9 

0.3 

0.0 

3.8 
3.4 
0.3 
5.0 

2.8 

1.2 
29.3 

27.3 
29.5 

2.0 

0.0 

2.5 
5.2 

I.O 

27.9 
28.5 
29.4 

1.3 
29.7 

2.8 

1.7 
1.5 

28.3 

3.6 

4.5 
1.3 

3.8 

1.5 

27.0 

4.7 

29.8 

3.5 

2.7 
0.3 

29.8 

3.0 
4.2 

4.0 

1.2 

27.3 

4.8 

4.8 



23.7 



IV. 



n 



2.4 

2.6 
0.2 

2.8 

1.9 

4.5 

4.2 
0.0 
4.6 

2.7 
1.7 

0.4 

29.5 

1.2 

3.0 

1.4 
3.6 

5.6 
2.8 

27.1 
29.0 

1.2 

O.I 

2.4 
2.5 
4.9 
3.9 

0.5 

4.5 
2.4 

0.5 
2.2 

5.0 
26.5 

3.7 
3.3 
3.9 

4.7 

4.3 
29.5 

3.8 
5.0 

3.0 
4.6 
29.5 
7.0 
7.0 



23.3 



TELESCOPE MICROMETER. 



Rev. 



26 
22 
26 
28 
20 

28 
23 
25 
27 
25 

24 
27 

24 

23 

24 
21 

24 

29 

25 

27 
26 

25 

20 
26 

25 
27 
24 

29 
21 

27 
21 

27 

28 
28 

23 
22 

24 

26 
22 

27 
22 

24 

23 

25 

24 
20 

23 



23 



I. 



156 
790 



502 



600 



300 

840 
240 

750 



780 

770 

720 
805 
170 
990 
722 



948 



265 



440 
300 
025 

740 
550 



650 



2. 



150 
864 



3. 



871 
640 



560 



480 



100 

870 
000 

850 



525 



625 



740 
160 
850 
685 



942 
905 
410 



790 
270 



440 

145 
690 

460 

330 
000 

790 
460 



687 



140 



430 



630 



235 
860 

005 
990 
150 
870 



910 



335 
940 

080 



070 



4. 



lOI 

860 
894 

• « 

490 

950 
540 

565 



035 

805 
930 



050 
590 



630 

585 
800 

085 

050 

650 

105 

794 
800 

288 



902 
250 
165 
450 

062 
740 
410 



860 



575 



315 

850 

960 
860 

155 



565 



050 



012 

• • 

900 

• • 

390 

no 

650 

• • 

900 
090 

750 

870 



655 
780 

570 

385 
600 

010 

960 

650 

085 
828 



840 

• • 

140 



370 
780 



580 
770 



460 



S c 
?° 

••- In 

c o 



II 



3.3 
3.3 
3.3 
3.3 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 

2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 

2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 



12.5 



Apparent 
Zenith Dis- 
tance, South. 



n 



II 47 21.8 

307 50 II. 9 

62 47 10.4 

19 4 42.4 

23 34 46.6 

37 10 8.6 

359 51 56.7 

307 31 31-6 

49 20 48.3 

348 55 35.9 

19 49 41. I 
19 I 9.1 

53 55 16.9 

54 27 37.8 
II 43 42.2 
32 2 26.2 
64 59 40.7 

24 20 23.9 
26 13 25.7 

II 5 10.3 
347 23 12. I 
309 59 29.7 

218 24 52.7 
28 I 20.3 

185 55 22.2 

48 20 SI. 6 

9 II 46.6 

19 38 25.5 
289 20 23.1 

47 18 59-5 
211 48 34.7 

214 10 58.6 

39 48 48.0 
284 42 46.5 
141 49 58.2 

39 40 19.4 

151 15 51. I 

47 9 8.9 
69 10 12.9 

155 36 54.7 
331 30 17.4 

288 59 36.7 

2i8 o 5.1 
10 31 21.5 

24 25 52.9 

38 12 10. o 

38 II 24.3 



324 38 0.5: 



I 

S 

o 

S 



737 

• • 

733 

• ■ 

680 

• • 

640 



606 



577 



597 



Refraction, 



-+- 
4- 






4- 






II 



12.7 
18.0 

57.5 
21.0 
26.1 



+ . 45.4 

— 0.1 

— I 17. I 
-f- I 8.9 

— II. 6 



21.3 
20.3 



-H I 20.2 

4- I 21.6 

-f 12. 1 

H- 36.4 

4- 2 3.7 



4- 
4- 

— I 

4- 

4- 

4- 
4- I 

4- 

4- 

4- 
4- 
4- 

4- 



2 
I 



26.2 
28.5 

".3 
12.9 

9-5 

46.4 

31.2 

6.1 

5.9 
9-5 

21.0 
46.0 

3.8 

36.5 
40.0 



49.1 

3 40.4 
46.4 

48.9 
32.3 



4- I 3.6 

4- 2 34.1 

— 26.8 

— 32.1 

— 2 50.0 



46.2 
II. o 
26.9 
46.6 
46.6 



- 42.1 



Apparent N. 
P. Distance. 



ti 



62 53 55.7 
358 55 15. I 
113 55 29.1 

70 II 24.6 

74 41 33.9 

88 17 15.2 
50 58 17.8 

358 36 35.7 
100 28 18.4 

40 I 45.5 

70 56 23.6 
70 7 50.6 

105 2 58.3 

105 35 20.6 

62 50 15.5 

83 9 23.8 

116 8 5.6 

75 27 II. 2 
77 20 15.4 
62 II 42.8 
38 29 20.4 

I 4 41.4 

12 40 42.1 
79 8 12.7 
45 10 53.0 
99 28 18.7 

60 18 17.3 

70 45 7.7 
340 24 58.3 
98 26 24.5 
19 17 10. o 
16 54 42.6 

90 55 58.3 
335 45 27.3 

89 17 9-4 

90 47 29.5 

79 51 2.4 

98 16 33-7 
120 19 8.2 

75 29 53.3 
22 36 6.5 

340 3 7.9 

13 5 29.9 

61 37 53.7 
75 32 41.0 
89 19 17.8 
89 18 32.1 



15 43 39-6 



.* a 
c o 

as 

so 



It 



— 2 

— I 

— I 
4-10 

— O 

— 5 
4- o 

— 2 
4- o 

— o 

— 2 

4- 3 

— 7 

— 7 
o 

4- 4 

— o 

— o 
4- o 

— I 

4- I 

— 2 

— I 

— I 

— O 

— I 

— 2 



4- 
4- 
4- 



3 
o 

o 

— 2 

- 3 



-77 
4- I 

— o 
o 

4- o 

— I 
4- 2 
4- 2 

— I 
4- o 

-16 

— o 
4- o 

— I 



9 

2 

8 

9 
6 

4 
6 

7 
I 

I 

7 

2 

2 

2 
o 

4 
2 

4 
6 

6 

3 
3 

I 

9 

2 

o 
o 

I 

5 

7 

3 
o 

5 

5 

3 
o 

8 

9 

4 
4 
7 
7 

4 
I 

7 
3 



- I 3 



- 1.6 



No. i Barom. 

I 



22 



in. 
30.025 



External 
Therm. 



Attached 
Therm. 



47.5 



62.0 



For summary of the elements of reduction see page 3. 



No. 



MOON' 



Parallax. 



II 



Semi-diam. 



11 



118 



OBSEBYATIOKS WITH THE TRAK8IT CIBCLE. 



DATE. 



18^8. 
Nov. 3 



Si 
B 

2 



I 

2 

3 

4 

5 
6 

7 

8 

9 
10 

II 

12 

13 
14 

15 

16 

17 
18 

90 

21 
22 

23 
«4 
25 

26 
27 
28 
29 
30 

31 
32 

33 
34 

35 

36 

37 

38 

39 
40 

41 
42 
43 
44 
45 

46 

47 

48 

49 
50 



OBJECT. 



Polaris, S. P. 
a Bootts . . 

Sun I, N. . 

Sun II, S. . 
C Ophiuchi . 
a Herculis « 
a Ophiuchi . 

fi Herculis 
^ Ursas Minoris 
II Cephei,(R.) 
79 Draconis, (R.) 
a Aquarii 

6 Aquarii 

If Aquarii, (R.) 

7 Aquarii 

C Pegasi,(R.) 
A Aquarii 



9 Virginis 

Polaris, S. P. 
If Boods . . 



A Ursae Min., S, P. 

K Cephei, (R.) . 

C Cygni . . . 

I Draconis, S. P. 
d Ursae Maj., S. P. 

II Cephei, (R.) 
fi Capricorni 

79 Draconis, (R.) 
a Aquarii 
226 Cephei . 

C Pegasi. (R.) . 
a Piscis Austral is 

Anonymous 
< Piscium, (R.) . 
a Andromedac, (R.) 

Jupiter I, S. . 

Jupiter II, N. . 
K Draconis, S. P. 
21 Cassiopeae . 
32> Camelopard., S. P 

y2* Camelopard., S. P 

Neptune . 
e Piscium 

Polaris . 

Uranus I, C. 

Uranus II . 
^ Geminorum 
X Ursae Min., S. P 

Moon II, S. 
A Praesepe 



• 




ka 




V 


■ 


t 




V 


bO 


10 




C 
^ 


T. 




T. 




T. 




T. 




T. 




T. 


• 


T. 




T. 




T. 




T. 




T. 




T. 




T. 




T. 




T. 




T. 




t. 




N. 


2? 


N. 


3 


N. 


2 


N. 


5 


N. 


4 


N. 


4 


N. 


3 


N. 


3 


N. 


• 


N. 


4 


N. 


4 


N. 


4 


N. 


5 


N. 


4 


N. 


3 


N. 


1.3 


N. 


4 


N. 


3 


N. 


3 


N. 


3 


N. 


2 


N. 


3 


N. 


2 


N. 


2 


N. 


2 


N. 


3 


N. 


2 


N. 


2 


N. 


• 


N. 


I 


N. 


3 


N. 


3 


N. 


3 



SECONDS OF TRANSITS OVER WIRES. 



I. 



II. 



III. 



IV. 



40.0 



16.0 



10.5 13. 214. 821. 3 



57.4 o.ii 1.5 8. 010. 212. 1 



V. 



VI. 



VII. 



VIII 



IX. 



52.029.0 3.0 
23.425.732.1133.7 



36.5 



Mean wire. 



CORRECTIONS. 



Inst. 



m. 



s. 



II 51.68;— 11.5s 
9 23.47- 0.30 



Clock 

appar'nt. 



II. 8 



10.5 



14-3 



13. 1 



16.2 

37.4 



22.6 
39.5 



14.621. 1 
I29.73I.734.O 



48.751.6.53.4 

• • I • • I • • 

7. 4.15. 219.7 
17.626.3:31.2 



35.1 
26.8 



37.7 



39.1 



0.3 

38.5 
52.8 

45.3 



29.430.937.2 



9.412.0.13.5.19.7 
27. 4130. 031. 5:37. 8 
18. 721. 322. 729.0 



42.645.2 

• ■ • • 

55.758.5 



51.0 

18.3 

9.9 



39.9 

• • 

34.5 

• • 

26.9 
54.0 

• • 

44.3 
7.4 

• • 

8.0 

• • 

5.1 
35.4 

43.8 
58.0 

9.4 



54.01 
o. 

57.5 



049 



57.4 

• • 

55.2 
34.7 



47.0 
45.5 

0.0 



55.7 

.6 
45.0 



52.9 
23.0 



31.2 
42.6 

• • 

37.1 



29.5 
57.0 

46.8 
10.2 



10.5 

• • 

13.9 
10.8 

19.0 

0.5 
12. ol 



37.5 
44.0 

38 .'5 



31.0 

58.7 
30.8 

48.3 



48.2 

2.8 

20.5 

39. 



43.7 
50.3 

• • 

44.7 



37.2 

5.9 
32.7 

54.5 



Il.9>i8.9 



0.6 

• • 

58.0 
37.4 



13.0 
12.0 

44.8 

19.3 
56.0 

4.2 

2.0 

13. 4 
36.0 



2.2 
6.0 

59-5 
39.0 



24.7126.8 
41.543.6 



18.620.2.22.71 
33.334.7137.4 



23.2 



47.7 



25.231.5 



36.038.142.3 



2.8 

• • 

44.6 

59.9 
47.4 



5.0 
36.0 



12.0 
15.0 



50.5' 9.6 

6.6 
49.3 



28.2 

55.5 



39.341.447.5 



21.723.7 
39.841.9 



29.9 

48.2 



31.013.039.3 



54.9.56.9 
39.0 
9.0 



41.0 



032 



5.1 
5.6 
.8 



32.5 
7.0 

7.5!i4.5 



3.o| 
12.5 

17.5 

7.5 
35.0 



51.3 
27.1 



50.056.0 

52.554.6 



15.0 

3*8.3 
42.4 

55.9 

4.8 

8.0 

19.6 

590 



5.8 
46.8 



39-4 
8.2 

36.6 

56.5 
21.3 

17.0 



34.0 
9.1 

14.0 
6.1 

45.7 



32. 

49 

35 

43. 
10. 

21. 

22. 

• 

37 
II. 

28, 

8. 

47 



5 
,2 

7 
,0 



12.9 

48.8 



41.4 
10.5 

38.4 

58.5 
23.5 

19.0 



49.0 
33.0 



43.946.5 



13.6 



14.0 



51.7 
35.8 



16.6 
51.0 
22.0 

33.0I41.8 

57.0 



49.0 



31.4 
49.7 



39 10.09 
41 24.64 

29 39.39 

8 23.11 

28 33.93 



41 
55 



59.6 
51.6 



41.043.5 



37.2 
20.9 

8.3 
i.ol 

26.7 

55.01 
16.7 

47.7 

17.7 
40.7 

4.8 

30.7 



21. 1 
|28.4 
26.4120.3 
57.320.2 
16. 616. 7 



4.6 

• • 

19. 1 

29.0 
42.0 
16.3 

8 .'6 

13. 1 

2.5 
32.0 

56.4 
22.7 

49.3 
19.4 
52.9 
6.3 
32.3 



34.0 

52.3 



a. 67 
1. 00 
39 44.61 
50 59.71 
58 47.33 

9 39.23 



7.0 

• • 

21.6 

44.0 
53.2 
19.2 
25.0 
57.0 

20.7 
5.0 

40.7 
590 
32.6 

51.8 
22.3 

5.3 

8.8 

34.9 



24.3 
12.2 

23.6 

46.0 



23.8 
18.3 
29.8 

11. 

16. 1 



38.639.7 
13.420.5 
42.0 



10.5 
49.8 



17.0 
56.4 



30.032.5 

• • • • 

25.535.0 
1.936.5 

8.7 



19.9 
31.4 

18.0 

40.8 
22.3 

• • 

18.7 
58.0 



44.1 
22.3 

33.8 

• • 

20.7 

47.3 
25.3 

• ■ 

21.6 
0.8' 



28 21.70 

34 39.84 
45 31.06 

12 54.90 
II 59.68 

48 8.77 

44 54.70 



— 0.51 

— 0.51 

— 0.47 

— 0.33 

— 0.34 

— 0.25 

+ 14.01 

+ 0.83 

+ 0.98 

— 0.42 

— 0.46 



— 0.42 

— 0.21 

— 0.46 

— 0.50 

— 16.42 

— 0.36 

+ 20.04 



s. 



+15.42 



Clock 
adopted. 



Apparent R. ! 
Ascension. ' 



.^ c 
e 



+ 15. 39 
+ 15.44 
+ 15.46 

+ 15.43 



+ 

+ 

+- 
+ 

+ 

+ 
+ 

+ 



+ 15.44 + 
+ 15.45 



12 57.69 + 1.82 



7 5.12 

17 51.46 
22 33.09 



— 0.26 

— 3.25 

— 1.56 



39 43.70 + 
45 52.49 
51 58.74 
58 46.76 
30 43.80 



34 39- 36 

50 8.19 

I 28.58 

32 56.53 
I 21.23 



+ 



+ 



21 17.02 

21 20.23i— 0.50 



1.08 
0.62 
1.26 
0.51 
1.06 

0.29 
0.78 
0.50 

0.33 

o. 10 



— 0.50 



27 32.42 



— 1.60 



36 49.83+ 0.92 

47 36.17- 4.27 



47 44. 

58 10. 

I 



II 
15 

15 

45 

55 

5 



21. 
23. 

7. 

7. 
II. 

28. 

8. 



02 
16 

63 
12 

42 

63 

34 
10 

33 



- 4.27 

- 0.47 

- 0.47 
+ 15.50 

- 0.32 

- 0.32 

- 0.28 
—20.96 

- 0.37 



29 47.72- 0.35 



+ 15.41 

■ • 

+ 15.38 
+ 15.69 
+ 15.84 



+ 16.01 



+ 16.06 
+ 16.08 

+ 16.06 



+ 16.53 



+ 
-+ 

+ 
+ 
+ 
+ 

+ 

+ 
+ 
+ 
+ 
+ 

+ 
+ 
+ 
+ 

+ 

+ 
+ 
+ 
+ 

+ 

+ 

+ 
+ 

+ 
+ 
+ 
+ 
+ 



8. 
30 
32 

33 
33 
36 
38 
39 

39 



47 

48 
48 

48 



49 
49 
49 

84 
86 

88 

03 
04 
06 

07 
07 

07 
08 
08 
08 
10 

10 
II 
II 
12 

13 

14 
14 
14 
15 

15 

15 

16 

16 
16 
31 

31 
33 
33 
34 

35 



h. m. s. 


s. 


I II 55*43 + 


0.15 


14 9 38.49- 


O.II 


14 39 24.91 


• • 


14 41 39.46 


• 


16 29 54.28 — 


o.o* 


17 8 38.16 — 


0.06 


17 28 48.98 — 

_^ ... A. 


0.06 



17 41 17.81 — 0.04 
19 55 30.45!- 1.5& 

21 40 0.91 + O.OQ 
21 51 16.17— 0.07 

21 59 2.39 -h 0.03 

I 

22 9 54.25 -h COS 



22 28 36.77 + cot 

22 34 55.12 + 0.03 

22 45 46.09+ 0.17 

12 13 10.24 + 0.14 
I II 59.08 + 3.92 

13 48 24.29+ D.OI 



19 55 

20 13 

21 7 
9 18 

9 22 

21 40 
21 46 
21 52 

21 59 

22 31 



30.77+ o.iB 

15.55- 0.04 

90.92 4- 0.04 

4.28 — 0.14 

47.60! + 0.15 

0.13 
0.03 
0.09 

O.OI 

0.07 



0.85 

7.95 
16.08 

2.33 

0.96 



22 34 55.l7i+ o.oq 

22 50 23.52 + 0.04 

23 1 44.19+ 3.64 
23 33 12.32— 0.12 

o I 37.26— 0.02 

o 21 32.66 

o 21 35.87, . . 
12 27 46.96— 0.52 

o 37 6.90+ 0.34 
12 47 48.05,— 8.35 

12 47 55.901- 0.50 

58 25.85 

1 I 37.32+ 3.17 
1 II 54.78,— 0.05 

7 15 a3.4i, . 

7 15 23.62 . . 

7 45 27.38!- 0.24 

19 55 23.47- 6.41 
S 5 24.30—70.68 

8 30 3.72,-h 4.71 



9. II. 22. 24. 25. 26. 28. 30. 39. 40. 41. Bisections at sets Band D. 

33. R. A. over wires C4. C5, D, VI, and VII. 
46. R. A. over wires E and VII. 



OBSEBYATIOKS WITH THE TRANSIT CIBCLB. 



119 



z 



1 

a 

3 
4 

5 

6 



8 
9 

10 

II 

12 

13 ' 

14 . 

15 
l6 

17 

i8 
19 

20 

" , 

32 I 

23 
24 
25 

26 I 

27 

28 

29 
30 

31 
32 
33 
34 

35 



Circle 
Division. 



36 

37 
38 

39 
40 

41 
42 
43 
44 
45 

46 

47 
43 

49 
50 



No. 



4 
23 



307 iS 
18 5$ 

S4 10 
54 42 
49 6 
24 18 
26 10 



MICROSCOPE MICROMS. 



II 

309 

311 
214 



2 
56 

44 

8 



39 46 

47 16 

141 46 

39 36 

151 13 
47 6 



307 28 
19 46 

309 56 
218 22 

9 8 
300 46 

289 16 

211 46 

52 58 
214 8 

39 46 

323 18 

151 18 
69 6 
38 18 

145 58 
169 26 

38 12 

38 12 

389 24 

324 34 
303 o 

303 o 
34 24 
33 52 

310 14 
16 6 



II 44 

307 46 
21 2 
18 38 



I. 



r. 



ti 



10 



10 



8.7 
7.6 

7.8 

8.4 

9.7 
8.6 

10.6 

9.6 
9.0 

3.3 

7.6 

10.3 

II. o 
8.6 
8.6 

4.5 
10.8 



6.2 

7.5 

7.8 

7-4 

8.8 

8.2 
8.3 

5-2 
7.6 
6.2 

8.6 

7.7 

8.8 

II. 4 

8.6 

9.0 

9.3 

9.5 

9.5 

3.9 
6.9 

7.9 

7.9 
8.0 

10.4 

7.5 
II. 6 



I.I 

5.0 

10.3 

9.0 



If. 



// 

7.5 
3.8 

4.9 
5.5 
5.6 
4.8 
6.8 

4.1 
4.7 
3-5 
8.5 
7.0 

7.7 
6.6 

6.6 

3.3 
8.3 



4-4 
5.2 

4.8 
6.9 
4.8 
5.2 

6.5 

5.8 

4.5 

7.1 

5.7 
5.0 

7.1 
9.1 

5-7 

7.9 
7.6 

6.4 
6.4 
3.6 

4.6 
5.4 

5.4 
5.1 
7.6 

6.0 
8.3 

28.6 
3.0 

7.9 
6.0 



in. 



6.0 
1.6 

0.7 
1.9 
1.4 
1.8 
1.2 

0.9 
3.0 
28.8 
4.0 
2.0 

2.5 
1.6 

29.6 

29.0 

3.8 



2.0 
2.2 

2.1 

2.3 
0.9 

1.7 
3.3 

1.2 

293 
2.2 

0.6 

1.6 

2.4 

2.5 
0.8 

1.7 
2.7 

1.5 

1.5 

29.1 

1.4 
2.0 

2.0 
29.4 

1.5 

1.6 

3.5 

24.7 
0.0 
2.6 
1.8 



IV. 



II 

7.2 
4.2 

2.8 
4.2 

3.1 
4.0 
50 

4.3 

6.7 
29.7 

4.4 

5.8 

5.7 
3.0 

3.5 
29.5 

6.0 



4.0 
3.3 

4.1 
1.6 

3.5 

3.8 
4.8 

0.8 

1.4 
1.6 

2.5 
3.5 

2.4 
5.6 
2.7 
2.0 

1.7 

3.5 

3.5 
0.8 

3.0 
3.9 

3-9 
2.3 
4.1 

3.8 

5.3 

25.8 
1.6 

4.5 
3.7 



TELESCOPE MICROMETER. 



Rev. 



Barom. 



m. 
30.007 
30.124 



External 
Therm. 



53.5 
50.0 



Attached 
Therm. 



63.0 
64.6 



25 
27 

24 

23 
22 

29 
25 

26 

24 
21 

27 
22 

28 

23 
21 

24 
26 



25 
24 

25 

27 

24 

27 
21 

29 
22 

27 
23 
27 

23 
22 

24 

23 

28' 

25 

28 

27 

23 

27 

28 
26 

24 
22 

26 

26 
22 
21 

23 



I. 



074 



650 



160 



365 



061 
830 



005 
090 



350 



428 



475 
532 

745 



881 



254 



3. 



1 30 
043 

796 

302 



675 

• • 

163 
328 
752 

450 

• • 

950 
lOI 
490 



357 



118 
802 



930 

• • 

q8o 



980 



300 



415 



602 



965 
709 
866 



• • » 
160 



3. 



082 



98 



654 

171 
105 
850 

030 

• • 

445 



372 



711 



388 
509 



874 



410 

875 
930 



4. 



962 
830 



310 

392 
672 
380 

613 
402 
042 
170 
802 

292 

• • 

040 
III 

390 



345 
432 

234 
630 



834 

998 
804 

398 
975 
235 

847 

• • 

185 
225 



341 

• • 

550 



850 
626 
830 

947 



910 



022 



451 

• • 

620 
570 



470 



401 



364 



238 
621 

• ■ 

031 
800 

,946 

744 
362 

910 

220 



068 
200 



230 

• • 

529 
510 

750 



856 



678 



NO 



n 



.2 
.2 

.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 



4 
4 

4 
4 
4 
4 

4 

4 
4 
4 
4 
5 

5 

5 
5 
5 
5 

5 

5 
5 
5 
5 

5 
5' 
5 
5 

9 

9 
9 
9 
9 



Apparent 
Zenith Dis- 
tance, South. 



• / // 

307 31 31-2 
19 I 5.7 

54 13 41.0 

54 45 57.7 
49 10 15.0 
24 20 22.7 
26 13 25.4 

II 5 9-8 
309 59 43.0 
211 48 37.5 
214 10 59.4 

39 50 7.2 

47 18 41.2 

141 49 47-9 
39 40 21.2 

151 15 51.5 
47 9 10.2 



307 31 29.8 
19 49 43.1 

309 59 31.6 
218 24 54.3 

9 " 47.9 
300 49 2.9 

289 20 22.4 

211 48 35.1 

53 2 28.0 

214 10 58.3 

39 50 5.7 

323 21 1.2 

151 15 51.2 
69 10 12.8 

38 21 47.7 
146 2 I.I 
169 28 37.7 

38 15 29.2 

38 14 43.3 
289 27 1.7 

324 37 58.5 

303 2 55.6 
303 2 37.3 

34 27 6.9 

33 55 390 

310 18 8.0 

16 9 2.6 

II 47 21. I 

307 50 10.3 

21 6 35.8 

18 43 5.2 



o 

853 
I- 

e/3 



527 

474 
462 

459 



509 

538 

• • 

540 



543 

• • 

498 
487 

550 

• • 

578 



584 



599 

• • 

600 
612 



620 

• • 

629 



625 
680 



692 
688 



Refraction. 






// 



I 15.8 
19.9 



+ 

4- 
+ 

— I 



+ 



20.0 
21.6 

5.9 
25.7 
28.0 

II. 2 
8.4 
35-9 
39-3 
48.3 



I 2.7 

45.5 
48.0 

31.8 

I 2.5 



— I 

— I 

+ 

— I 

— 2 

-h 

+ I 



+ 2 



14.5 
20.4 

9.1 
46.1 

9-5 
37.7 
45.1 

36.2 
17.6 

39-7 
48.8 

43.7 

32.2 

33.3 

46.5 

39-7 
10.9 



46.5 

46.5 

2 45.5 

41.9 

I 30.6 



— I 



— I 



30.6 
40.6 

39.8 

9.6 

17.3 



+ 12.5 
— I 17. I 
4- 23.3 
-f 30.3 



Apparent N. 
P. Distance. 



• / // 

358 36 36.6 
70 7 46.8 

105 31 33.3 

105 53 40.5 

100 17 42.1 

75 27 9-6 
77 30 14.6 

63 II 43.2 

I 4 55.8 
19 17 7.8 
16 54 42.5 

90 57 15.7 



3 M 

- C 

(0 u 

;- O 



— 2.2 

~ 0.8 



— 


7 


.3 


— 


7. 


3 


— 


I, 





— 


2. 


I 


— 


0. 


4 


— 


2. 


4 


-I-I2. 


I 


— 


4 


4 


— 


2. 


9 


— 


0. 


I 



98 36 5.1 4 0.3 

89 17 8.8 J— 0.9 

90 47 30.4 +0.8 
79 51 1.5 - 0.3 

— 0.4 



98 16 33.9 



358 36 36.5 :- 2.5 
70 56 24.7 — 2.1 



I 4 43.7 
12 40 40.8 
60 18 18.6 

351 53 46.4 
340 23 58.5 

19 17 9.9 

104 10 6.8 
16 54 43.2 

90 57 15.7 

14 26 38.7 

79 50 2.2 
120 19 7.3 

89 28 55-4 
85 4 59.8 
61 37 54.4 

89 33 36.9 

89 31 51.0 

340 30 37.4 

15 43 37.8 
354 7 46.3 

354 7 27.9 
85 34 8.7 

85 3 40.0 

I 33 19.6 

67 15 41. I 

63 53 54.8 
358 55 14.4 

73 13 30. 3 
69 48 46.7 



0.0 

— 2.5 

— 0.8 

— 3.0 
4- 0.9 

— 3.3 

-H 3.7 

— 3.1 

— 0.2 

— 1.9 

,-h 0.5 
-H 1.2 

-193 

— I.o 

-h 0.8 

— 1-3 

— 1-3 
-h 1.4 

— 2.8 
+ 18.3 

0.0 

— 0.3 

— 22.2 

— I.O 

— O.I 



- 4.1 

- 1.8 

4 10. 1 



I 



For summary of tht elements of reduction see page 3. 



No. 



49 



MOON* 



Parallax. 



/ // 
21 1.4 



Semi-diam. 



/ // 
- 16 5.3 



120 



0B8EBVATI0N8 WITH THE TRANSIT CIBCLE. 





• 






• 




SECONDS OF TRANSITS OVER WIRES. 


CORRECTIONS. 


j 


Si 

c 


DATE. 


B 

9 

2 




OBJECT. 


l 




1 








Apparent R. : 
Ascension, i 

$ 
i 




I. 


II. 


III. 


IV. 


V. 


VI. 


VII. 


VIII 

1 


IX. 


Mean wire. 


Inst. 


Clock 
appar'nt. 


Clock 
adopted. 


b » 
5' 


1868. 






m. s. 


s. 


8. 


8. 


1 

h. m. 8. 


S. 


Nov. 5 


I 


G 


Pr«sepe 


N. 


4 


3.8 


6.5 


8.014.7 


16.8 


18.9I25.527.2 


30.2 


32 16.84'— 0.35 


1 


+16.35 


8 32 32.84 + 


All 




2 


e 


Hydnc .... 


N. 


3 


21. 0123.4:24. 8 


31.0 


33.3 


35.241.3 43. o|45. 5 


39 33.17- 0.46I+16.43 


+16.35 


8 39 49.06.-- 


0.0? 




3 


t 


Ursae Majoris, (R.) 


N. 


3 


40.6 


42.8 


• • 


52.1 


55.3 


58.41 . . 7.7 


! 9.9 


49 55.26 


-h 0.20 


• • 


+ 16.35 


8 50 II. 81 + 


O.Oq 




4 


K 


Cancri .... 


N. 


3 


9.2 


II. 9 


I3.3!i9.5 


21.7 


23.8130. 0131. 6|34. 2 


21.69 


— 0.42 


+16.40 


+16.36 


9 37.63- 


0.04 




5 


I 


Draconis . . . 


N. 


• 


• • 


. . !i8. 3132.0 


46.8 


0.3 


16. 0| . . . . 


17 46.68 


-H 2.28 


• ■ 


+16.36 


9 18 5.32 + 


O.^I 




6 


a 


Hydras, (R.) . . 


N. 


2 


• • 


• • ' • • 


• • 


• • 


• • 


• • • 


. . 


m • 


• • 


• • . . 


• 


6 


7 


A 


Ursae Minoris 


N. 


5 


• • 


• • 


23.0I10.5 


0.5 


44.5 


37.0 


1 
1 • • 


• • 


54 59.50 


+ 12.29 


• • 


+ 16.71 


19 55 28.50- 


0.67 




8 


a* 


Capricorni . . . 


N. 


5 


16.5 


19. 1 


20.6 


27.0 


29.2 


3i.2i37.5391 


41.7 


10 29.10 


- 0.49 


-I-I6.7I 


+16.72 


20 10 45.33 + 


O.OI 




9 


«• 


Capricorni . 


N. 


4 


18.4 


21.0 


22.5 


29.2 


31.4 


33.4I40.0I41.5 


44.1 


19 31.28 


- 0.53I-HI6.72 


+16.72 


20 19 47-47 


O.On 




10 


e 


Delphtni . . . 


N. 


5 


27.1 


29.7 


31. 1 


37.5 


39.5 


41.6 


47.9149-5 


52.0 


26 39.54 


— 0.36 


+ 16.74 


+16.73 


30 26 55.91 


0.00 




II 


c 


Cygni .... 


E. 


• 


50.3 


53.3 


54.8 


2.0 


4.3 


6.7 


13.8 


15.7 


18.6 


7 4.39 


— 0.24 


4-16.70 


+16.77 


21 7 20.92 + 


0.06' 




12 


I 


Pegasi .... 


E. 


« 


31.4 


34.0 


35.7 


42.2 


44.4 


46.5 


53.2 


54.7 


57.4 


15 44.39 


— 0.31 


+ 16.70 


+16.77 


21 16 0.85 — 


O.OI 




13 


24 


UrsaeMaj., S. P. . 


E. 






8.7 


I.O 


56.4 


38.1 


32.3 


26.0 


8.0 


2.9 


55 5 


22 32.10 


— 1. 00 


• • 


+ 16.77 


9 22 47.87-^ 


0.36 




14 


f 


Aquarii . . 


E. 






16.7 


19.4J21.0 


27.2 


29.2 


31. 1 


37.4 


39.0 


41.6 


30 29.18 


— 0.46 


+ 16.66 


+ 16.78 


21 30 45.50 + 


o.i: 




15 


II 


Cephei, (R.) . . 


E, 






6.0 


14.2 


18.0 


30.6 


36.8 


43.5 


. . 


• • 


• • 


39 43.27 


+ 0.66 


• • 


+ 16.78 


21 40 0.71! — 


0.24 




16 


79 


Draconis, (R.) . . 


E. 






16. 1 


24.9 


30.0 


44.6 


• • 


12.6 


26.6131.3:40.6 

1 1 


50 58.34 


+ 0.77 


• • 


+ 16.79 


21 51 15.90: — 


0.2c 




17 


a 


Aquarii 


E. 






34.0 


36.3 


37.8 


44.0 


46.0 


48.1 


54.2 


55.7158.3 


58 46.04 


— 0.42 


+ 16.70 


+16.79 


21 59 2.41 + 


o.oS 




18 


32 


Urs2 Mai., S. P. . 
Aquarii, (R.) . 


E. 






39-8 


33.5 


30.0 


14.7 


9.8 


5.0 


50.2 


46.4140. 1 


8 9.94 


- 0.86 


. . +16.79 


10 8 25.87 + 


O.OI 




>9 


IT 


E. 






5.7 


8.5 


10. 


16.0 


18.0 


19.8 


26.0127.6 


30.2 


18 17.98 


— 0.32 


■ ■ 


+ 16.80 


22 18 3446 + 


O.IO 




20 


9 


Draconis, S. P. 


E. 






23.8 


13.0 


7.c^ 


40.4 


31.8 


23. 4156. 8^50. 1 


40.0 


23 31.81 


- 1.31 


• • 


+16.80 


10 23 47- 30'— 


o.i5 




21 


7 


Aquarit 


E. 






8.1 


10.7 


12.1:18.3 

1 


20.4 


22.428.5 


30.0 


32.5 


28 20.33 


— 0.42 


+ 16.75 


+ 16.80 


22 28 36.71=+ 

1 


0.05 




22 


i 


Pcgasi, (R.) . . 


E. 






26.2 


28.7 


30.4I36.6 


38.7 


40.7 


47.0 


48.2 


51.0 


34 38.61 


— 0.25 


• • 


+16.80 


22 34 55.16: + 


0.09 




23 


Aquarii . . . 


E. 






17.420.0 


2i.5'27.6 


29.6 


31.7 


38.0 


39.5 


42.0 


45 29.70 


— 0.46 


+ 16.72 


+ 16.81 


22 45 46,05' + 


0.T5 




24 


a 


Piscis Australis . 


E. 






53.3 


56.2 


57.9 4.9 


7.4 


9.6 


16.9 


18.5 


21.5 


50 7.36 


— 0.62 


+ 16.72 


+ t6.8i 


22 50 23.55 + 


0.0* 




25 


a 


Pcgasi .... 


E. 






44.4 


47.4 


48.855.0 


57.4 


59-5 


5.9 


7.5 


lO.O 


57 57.32 


- 0.33 


+ 16.78 


+16.81 


22 58 I3.S0 + 


0.04 




26 




Anonymous 


E. 






15. 1 


.7.6 


19-3 


25.6 


27.7 


29.5 


35.5 


37.3 


39-6 


I 27.47 


— 0.41 


« • 


+ 16.81 


23 I 43.87 + 


3-^5 




27 





Cephei .... 


E. 






28.2 


35.5 


38.9 


55.0 


1.0 


5.7 


21.8 


25.6 


32.3 


13 0.45 


-1- 0.23 


• • 


+ J6.81 


23 13 17.49 + 


0.13 




28 


X 


Draconis, S. P. 


E. 






51.0 


43.7 


39.8 


20.8 


15.2 


9.8 


51.4 


46.5 


39.2 


23 15.27 


- 0.99 


• • 


+16.82 


II 23 30.96 + 


O.II 




29 


c 


Piscium . . . 


E. 






44.0 


46.4 


47.8 


53.8 


56.1 


58.0 


4.2 


5.7 


8.2 


32 56.02 


- 0.39 


+ 16.78 


+ 16.82 


23 33 12.45 + 


0.02' 




30 


a 


Andromedie 


E. 






6.8 


9-7 


H.5 


18.6 


20.8 


23.0 


30.1 


31.7 


34.7 


I 20.77 


— 0.25 


+ 16.75 


+ 16.83 


I 37.35 + 


O.OB 




31 


y 


Pegasi .... 


E. 






0.5 


3.2 


4-4 


II. 


13.0 


15. 1 


21.2 


23.0 


25.6 


6 13.00 


- 0.33 


+ 16.70 


+16.83 


6 29.50 + 


O.II 




32 




Jupiter I, S. 


E. 






• • 


• • 


• • 


• • 


59-5 


1.3 


3-3 


• • 


• • 


20 59.34 


— 0.41 


• • 


+16.83 


21 15.76I 


^ 




33 




Jupiter II, N. . 


E. 


• 




• • 


• ■ 


• • 


• ■ 


• • 


• • 


10.6 


12. 1 


14.8 


21 2.47 


— 0.41 


• • 


+16.83 


21 18.89 




• 




34 


21 


Cassiopese . . . 


E. 






4.4 


13.5 


19.0 


41.9 


49.2 


56.8 


19.7 


25.3 


34.8 


36 49.40 


-H 0.50 


• • 


+ 16.84 


37 6.76 


— 


0.27 




35 




Anonymous 


E. 






27.1 


29.9 


31.4 


35.2 


37.4 


39-5 


41.6 


43.5 


• • 


44 3948 


— 0.38 


• • 


+16.84 


44 55.94 


+ 


3.20 




36 




Neptune 


E. 






51.8 


54.6 


55.9 


2.2 


4.1 


6.1 


12.413.816.5 

1 


58 4*. 16 


- 0.39 


• • 


+16.85 


58 20.62 




• • 




37 


^ 


Piscium 


E. 






8.7 


II. 2 


12.6 


19.0 


21.0 


23.0 


29.i'30.633.i. 


I 20.92 


- 0.39 


• • 


+ 16.85 


I I 37.38 


+ 


317 




38 




Polaris .... 


E. 






• • 


• • 


46.0 


9.0 


30.5 


51.0 


20.5' . . t . . 


II 31.82 


+ 9-50 


• • 


+ 16.85 


I II 58.17; + 


3.73 




39 


(f 


Canis Majoris 


E. 






• • 


• • 


• t 


9 • 


• • 


14.6 


18. 019. 0.20. 3 


2 47.35 


— 0.58 


+ 17.05 


+ 16.97 


7 3 3.74'- 


O.IO, 




40 


d 


Geminorum . . 


E. 






47.1 


50.0 


51.5 


58.2 


0.3 


2.4 


9.3 ii.o'i3.3 


12 0.34 


- o.29;+i7.04 


+ 16.97 


7 12 17.02 — 


O.IO 




41 




Uranus I, (center.) 


E. 






50.0 


52.7 


54.2 . . 


• ■ 


• • 


II. 6 


13.5 16.3 


15 305 


— 0.29 


• • 


+ 16.97 


7 15 19- 73 




• » 




42 




Uranus II. . 


E. 






■ • 


• • 


59-4 


1.4 


3.5 


5.7 


7.9 


• • 


• ■ 


15 3.58 


— 0.29 


• • 


+ 16.97 


7 15 20.26 




• • 




43 


cfl 


Geminorum . . 


E. 






42.2 


45.1 


46.9 


52.0 


• • 


1.6 


6.4 


8.0 


II. 


25 56.65 


— 0.22 


+ 16.94 


+ 16.98 


7 26 13.30 


+ 


0.24 




44 


a 


Canis Minoris . 


E. 






56.9 


59-4 


0.8 


■ • 


■ • 


• • 


17.4 


19.0 


21.4 


32 9-15 


— 0.38 


+ 17.18 


+ 16.98 


7 32 25.75- 


0.22 




4S 


P 


Geminorum 


E. 






• • 


55.4 


57.7 


0.0 


2.2 


4.8 


9.2,11.2 


13.8 


37 0.03 


— 0.25 


+ 17.07 


+ 16.98 


7 37 16.76- 


0.09 




46 


^ 


Geminorum . . 


E. 






57.0 


59-8 


1.3 


8.6 


10.6 


12.9 


19.9 


21.7 


24.6 


45 10.71 


— 0.26 


+ 17.16 


+ 16.99 


7 45 27.44- 


0.21 




47 


X 


Ursae Minoris, S. P. 


E. 






• • 


• • 


0.0 


12.0 


24.0 


37.0 


50.0 


• • 


• • 


55 24.36 


-12.97 


• • 


+ 16.99 


19 55 28.38- 


O.IO 




48 


A 


Praesepe 


E. 






33.9 


36.6 


38.3 


44.9 


47.0 


49.1 


55.6 


57.0 


0.1 


29 46.94 


— 0.30 


■ • 


+17.00 


8 30 3.64 


+ 


4.67 




49 


G 


Prxsepe 


E. 






3.0 


5.7 


7.2 


13.8 


16. 1 


18.2 


24.8 


26.3 


29.2 


32 16.03 


— 0.30 


• • 


+ 17.00 


8 32 32.73 


-t- 


4.70 




50 


e 


Hydrae .... 


E. 




20.0 


22.8 


24.1 


30.5 


32.5 


34.6 


40.7 


42.2 


44.5 


39 32.43 


— 0.38 


+ 17.12 


+ 17.00 


8 39 49.05 




0.12 



5. Circle reading not recorded. 
13. 15. 16. 18.20.27.34. Bisections at wires Ck and Dt. 

15. Transit at B and Ci-Ct. 
27.48. Wire B used. 
35. Wire A used. 
39. R. A. observed over wires £i-E4. 



OBSEBVATIONS WITH THE TRANSIT CIBCI>E. 



121 



V 

B 

z 



I 

2 

I 3 

'? 

6 

7 

I ^ 
• 9 

' 10 

II 

I 

13 

13 
M 

I 
17 
i8 

19 

20 
21 

I 

, 22 

i 23 

24 

25 
26 

27 
28 

29 
30 

i 31 

32 

33 

, 34 

35 
36 

37 
33 

39 
40 

41 

42 
43 
44 
45 
46 

47 

43 

49 
50 



Circle 
Division. 



I 



18 22 

31 56 

189 36 

27 38 

• • 

132 58 

309 56 

57 27 

27 58 

9 8 

19 36 
289 16 

47 16 
211 46 
214 8 

39 46 
284 40 
141 46 
295 16 

39 36 

151 12 

47 6 
69 6 
24 20 
38 i8 

331 28 

288 56 

33 54 
10 28 

24 22 

38 14 

38 14 

324 34 

33 16 

34 24 

33 52 

310 14 

64 58 
16 36 
16 6 



6 40 
33 16 

10 30 

11 44 

307 46 
18 40 
18 22 
31 56 



MICROSCOPE MICROMS. 



r. 



12 



I. 


II. 


II 


II 


7.0 


3.2 


II. 2 


7.5 


7.4 


6.7 


9.7 


6.2 


7.9 


4.7 


3.9 


1-5 


7.7 


4.9 


12.3 


^0.5 


II. 4 


8.2 


13.0 


8.5 


II. 7 


8.2 


10.5 


8.9 


12.5 


8.7 


5.5 


6.5 


6.9 


8.0 


II. I 


7.5 


5.7 


3.6 


9.5 


6.3 


9.2 


6.0 


6.4 


4.0 


8.5 


5.6 


II. 


8.0 


7-7 


4.7 


II. 4 


6.7 


10.9 


7.7 


4.4 


2.7 


7.4 


5.0 


5.7 


3.7 


7.5 


4.4 


9.8 


5.8 


8.7 


4.4 


8.7 


4.4 


8.5 


5.2 


10.6 


7.0 


13.0 


9.2 


6.6 


4.2 


0.6 


28.5 


6.2 


3.8 


9.7 


6.0 


10.6 


7.8 


6.0 


1.8 


4.6 


1.8' 


10. 1 


5.8 


2.1 


28. 5 


5.5 


2.8 


7.5 


5.5 


II. 


8.0 


12.8 


9.5 



III. 



II 

29.5 

2.6 
2.2 
1.8 

2.5 
26.7 

3-7 

3.2 

3-4 
5.0 

4.7 
6.6 

4.0 

2.4 

3.8 

3.1 
0.5 

31 

2.7 
29.5 

0.8 

5.7 
28.4 

1.4 
2.4 

0.1 

3.3 
28.6 

1.7 
0.4 

0.3 
0.3 
3.0 
2.9 

4-5 

27.8 

26.0 

29.0 

1.8 

3.8 



28.5 

28.3 

4.2 

25.7 

0.7 
2.0 
2.6 

4.5 



IV. 



II 

1.2 
5.0 
I.I 

4.3 

4.0 

27.1 

4.3 

7.4 
6.4 

7.0 

5.8 
7.5 
5.5 
1.5 
3.5 

6.2 

3.3 
4.5 
6.7 
4.0 

4.0 
7.8 
3.6 
6.0 

4.8 

2.5 
6.0 

0.8 

4.0 

5.2 

3.2 
3.2 

5.5 

5.5 
8.0 

1.5 
28.0 

3.2 

5.0 

5.6 



1.2 
29.4 

5.1 
27.1 

3.4 
4.2 
6.4 

8.5 



TELESCOPE MICROMETER. 



Rev. 



26 
26 
26 

25 
20 

23 

25 

25 
25 
23 

29 
21 

27 
29 
27 

22 

28 

23 

28 

22 

23 
26 

22 

26 

24 

22 

24 

23 
26 

23 

26 

29 
23 
29 
24 

25 
23 
21 

22 

27 



26 

25 
26 

26 

22 
20 
26 
26 



I. 



980 
456 
675 



680 



455 



85 
25 



810 
150 

■ • 

740 



755 



400 
440 

032 

185 



400 



400 
645 

• • 

190 

688 



2. 



575 
926 

458 
626 



880 

620 

565 



070 



700 
160 

355 
340 
350 

008 

585 

795 
800 
000 

260 



040 
900 



500 
640 
390 

955 
210 



730 
570 



125 

800 



420 

650 
900 
220 

808 



3. 



462 



262 

500 

855 



490 



210 



295 



3CX) 
340 



450 



130 



610 



459 
788 

368 

482 

• • 

511 



820 

410 
530 
280 



290 

745 
065 



390 



520 
870 



002 
550 

• • 

642 
910 
910 

945 



500 
730 
540 

670 
180 
265 
400 
300 



370 
660 
625 
280 

640 



140 

575 



5. 



753 
249 
515 

• • 

533 



420 

• • 

240 
300 



500 



820 



540 
692 

880 



970 

• • 
550 
500 

710 
260 
130 

• • 

420 



470 
240 

540 



005 
535 



o o 
•52 

N3^ 



I 
I 
I 
I 
I 
I, 



9 
9 
9 
9 
9 
9 



3.0 

3.0 
3.0 
3.0 

3.0 
3.0 
30 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

30 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 

4.3 
4.3 
4.3 



4-3 
4.3 
4-3 
4.3 

4.3 
4.3 
4.3 
4.3 



Apparent 
Zenith Dis- 
tance, South. 



// 



18 25 14.4 

31 59 4.8 
189 39 14. I 

27 41 26.0 
317 o 44.7 
133 2 2.8 

309 59 32.2 

57 30 25.3 

28 I 20.9 

9 " 50.7 

19 38 24.5 
289 20 25.9 

47 18 59.0 
211 48 35.2 
214 II 0.2 

39 50 91 
284 42 49.5 
141 50 0.9 
295 18 43.9 

39 40 19. I 

151 15 55.4 

47 9 9-3 
69 10 10.6 

24 23 7.5 
38 21 50.3 

331 32 19. I 
288 59 41.6 

33 57 58.5 
10 31 22.2 

24 25 53-6 

38 17 6.6 
38 16 19.9 

324 37 59.0 

33 20 58.9 

34 27 41. I 

33 55 41.2 

310 18 10.8 
65 2 36.3 
16 40 14.3 
16 8 58.8 



6 43 22.0 

33 19 30.5 

10 33 II. I 

11 47 24.1 

307 50 15.7 
18 42 12.0 
18 25 18.4 
31 59 8.6 



I 

g 

o 

as 
a« 



690 

• ■ 

702 
710 
624 

638 



720 



740 



Refraction 



+ 

4- 
4- 

— I 



+ 
4- 



4- 
4- 

4- 
4- 

4- 



4- 
4- 



4- 
4- 
4- 



// 

20.0 

37.5 
10.2 

31.6 

56.1 

4.5 



— I 10.3 

4- I 32.7 

4- 31.5 

4- 9-6 

-h 21.2 

- 2 47.9 
4- I 4.5 
4- 37.0 
4- 40.5 



49-9 
44.5 
47.1 
6.3 
49-9 



— 2 



33.0 

4.9 
37.5 

27.4 
47^8 



32.8 
2.54.0 
40.7 
II. 2 
27.5 

47.8 
47.8 
43.0 

39-9 
41.6 



I 

2 



40.8 

"•5 

9.7 

18.2 

17.6 



7.2 
40.0 
II. 4 
12.7 



— I 18.4 

4- 20.7 

4- 20.4 

4- 38.2 



Apparent N. 
P. Distance. 



// 



69 31 55.6 

83 6 3.5 
41 26 56.9 

78 48 18.8 
8 6 9.8 

98 5 23.7 

I 4 43.1 

108 38 19.2 

79 8 13.6 

60 18 21.5 

70 45 6.9 
340 23 59.2 

98 26 24.7 
19 16 9.0 
16 54 40.5 

90 57 20.2 
335 45 26.2 

89 17 7.4 
346 22 58.8 

90 47 30.2 

79 50 58.8 

98 16 35-4 
120 19 9.3 

75 29 56.1 

89 28 59-3 

22 38 7.5 
340 3 8.8 

85 5 0.4 

61 37 54.6 

75 32 42.3 

89 24 15.6 
89 23 28.9 

15 43 37.2 

84 28 0.0 

85 34 43.9 

85 4 43.2 

I 23 20.5 

116 II 7.2 

67 46 53-7 

67 15 37.6 



57 49 50.4 
84 26 31.7 

61 39 43.7 

62 53 58.0 

358 55 18.5 

69 48 53.9 
69 32 0.0 
83 6 8.8 



M 



10 



CO 

y t: 
.2 o 



II 

4-10.3 

— 2.0 
~ 0.4 

— 2.0 

— 1.9 
2.3 



4- 



- 0.7 

4- 0.4 

— 1.2 
4- 2.1 

4- 2.2 
4- 1.8 

4: 0.6 

- 3.0 

- 4-7 

4- 4.3 
4- i.o 

- 0.4 
4- I.I 

— O.I 

4- 0.5 

— 0.4 

4- 3.1 
4- 5.2 
-19.3 

— O.I 

4- 3.4 

— 0.4 

4- I.I 
4- 2.1 

— 1.3 

— 1.3 

— 3.5 
—22.0 

— 0.2 

— 22.2 
4- 0.3 
4- 2.1 
4- 2:9 

— O.I 



4- 4.6 

4- 2.8 

4- 1.0 

— 1.0 



4- 2.3 
4-10.0 
4-10. 1 
4- 2.4 



No. 



Barom. 



in. 



External 
Therm. 



Attached 
Therm. 



For summary of the elements of reduction see page 3. 



No. 



MOON* 



Parallax. 



/ 11 



Semi-diam. 



» ti 



16 



122 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
Nov. 6 



8 






I 

2 

3 
4 
5 

6 

7 

8 

9 

10 
II 
12 

13 
14 

15 
16 

17 
18 

19 

20 
21 
22 
23 
24 

25 

26 
27 

28 

29 

30 

31 
32 

33 

34 

35 
36 

37 

38 

39 
40 

41 
42 

43 
44 
45 
46 

47 

48 
49 



OBJECT. 



I Vtsx Majoris 
Moon II, S. 

I Draconis . 

a Hydrae . 
Venus II, S. 

12 Canum Venat. 
Polaris. S. P. . 
rj Ursae Majoris . 
a Bootis . 

Sun I, S. . 

Sun II, N. . 
a Ophiuchi . 
6 Ursae Minoris . 
6 Aquarii 



Anonymous . 
6 Piscium 
I Piscium, (R.) . 
a Andromedae 
y Pegasi .... 

Jupiter I, N. . 

Jupiter II, S. . 
K Draconis, S. P. . 

Neptune . 
e Piscium 

Polaris .... 

Venus I, S. 
Venus II, N. . 

d Aquarii 
ir Aquarii 

226 Cephei .... 
^ Pegasi .... 
t Cephei . . . . 

a Piscis Australis . 
t Piscium, (R.) . 
a Andromedae, (R.) . 
y Pegasi, (R.) 
Jupiter I, S. 

Jupiter II, N. . 
a Cassiopeac, (R.) . 

Neptune 
e Piscium 

Polaris .... 

Polaris, (R.) . 
6 Geminorum 
^ Geminorum 
X U rsae M inoris, S. P. 
15 Argus . . . . 

B Praesepe 

Anonymous . 



> 

V 

in 

O 



bo 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



E. 
E. 
E. 
E. 
T. 

T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 



T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 
T. 

N. 

N. 

N. 
N. 

N. 
N. 
N. 

N. 

N. 
N. 
N. 

N. 

N. 
N. 
N. 

N. 

N. 

N. 
N. 

N. 
N. 
N. 

N. 
N. 



8. 911. 5 

53.556.2 

8.911.6 

19.7,22.3 

41.0*24.0 



15. 017. 6 

49952. 5 

43. 2.45 -7 
6.2! 9.2 

0.0 2.5 



30.633.2 

I 

• • I • • 

8.4 0.3 
46.448.8 



4 
5 
4 
4 
4 

3 
4 
4 
3 
4 

4 
4 
4 
4 
4 

4 
3 
4 
4 
2 

2 

3 



I. II. 



36.239.9 
14. 917. 6 



18. 321. 7 



43.4 



47.1 



48.050.7 

24.026.5 
4.0 6.7 



III. 



IV. 



V. 



VI. VII. 



VIII 



IX. 



42.5151.655.057.8, 7.0 9.3 

I9.2!26.0|28.2 30.2 36.8>38.3 
1 7. 9*32. 846.41 0.615.6 

16.0 19.0,20.021. 1 22.1 

42.2,45-346.547.4 



23.5 
41.0 

49-5 



31.4 
13.0 

59.2 



13. 019. 6 



34.236.7 



57.7 
13.4 
23.8 

48.0 



27.0 

2.3: 5.5 
21.823.8 



4.2 6.3 

19.521.8 



44.7 
i.o 

14.9 
30.4 



8.415.2 
24.0^30.2 



19.2 

53.9 
47.3 
10.8 

4.0 



30.232.334.340.5 
6.041.0 



25.327.329.4 

0.0, 2.0| 4.0 
53.355.457.5 



17.920.2 
10.5 12.5 



22.4 

14.5 



34.7 
4i.8|43.9'46.o'48.o 

56.5.37.7;3i.425.4 



50.556.558.5 



24.627.2 
14.620.7 



4.8 7-7 
58.4. 1.0 
59.0 1.6 



25.7 



30.4 



34.937.5 
7.0 



35.0 

55.4 
52.0 



55.023.0 
57.4I59.5 



0.5 

• • 

48.0 



1.5 



27.9 34. 1 36. 238. 2 
8.014.2 16.2 18.3 



25.2 
28.6 
24.1 

1.0 
50.0 

9.4 
2.5 
3.0 

10. 1 

32.7 
38.9 



9.611.0 
35.5 



55.558.6 

• • I ■ • 

26.229.0 



47.1 



49.8 



0.0 

56.5 
30.4 



51.4 



33.341.4,49.6 
35.037.039.0 
39.044.048.8 

3.3 5.7 8.0 
52.054.1 56.0 
16.3 18. 721.0 

9.011.0I13.0 



12. 1 14.2 16.2 



43.847..*; 

45.247.2 

17.2,19.3 

1.026.0 



51.0 
49.2 

21.3 

47.0 



7.0 9.3 II. 6 

7.5 18.030.0 

37.339.641.8 



58.0 



0.2 



2.3 



46.6 

• • 

17.5 
32.0 

16.6 
31.8 
42.1 



35.8 

10.2 

3.7 
29.4 

2I.O|22.5 



3.6 

8.4 

44.5 

24.5 
58.0 

45.3 
3.7 

10.4 
58.0 
28.0 
19.4 
19.3 

18.4 
2.0 

55.4 
27.4 

12.5 



7.6 
18.5 



37.2 

II. 8 
5.2 

31.0 



52.7 



51.1 
50.1 

7.2 

6.7 
28.6130.1 
13.0 



13.2 
41.0 

• • 

28.7 
48.5 

50.0 

• • 

21.5 
35.0 

19.0 

34.5 
44.6 



39.5 
14.4 

7.7 
33.8 
25.2 

55.0 



2.555.3 



8.2 



10. o 



10.8 
32.9 



12.5 



46.048.5 
26.0*28.5 



*7.o 
7.5 



29.8 
21.0 
20.8 



4.6 

56.9 
29.0 



9.4 
20.1 



41. oj . . 

48.5.50.0 



58.6 



0.3 



9.010.6 



49-5 
13.4 



32.6 
23.6 

23.4 



9.2 

59-3 
31.5 



12. 1 
23.1 

■ • 

53.1 

3.1 
13.2 



Mean wire. 



Inst. 



m. 8. 



s. 



49 54.72- o.io 



5 28.00 
17 46.66 
20 51*29 
15 17.84 

49 34.12 

II 50.82 

42 2.32 

9 21.78 

51 6.34 
53 21.74 

28 32.20) 

14 6.88 



I 27.37 
21 2.08 

32 55.44 
I 20.10J 
6 12.52 

20 42.88 

20 45.96 

27 31.63 

57 58.54 
I 20.46 

II 23.12 



— 0.33 

■+- X.35 

— 0.46 

— 0.45 

— 0.16 

-13.91 

— 0.02 

— 0.31 

— 0.57 

— 0.57 

— 0.36 
+ 5.15 



— 0.45 

— 0.41 

— 0.32 

— o.iol 

— 0.35 

— 0.44 

— 0.44 

— 1.32 

— 0.42 

— 0.41 
+ 13.12 



23 59.48— 0.40 

24 0.27— 0.40 



9 36.21 
18 16.27 
29 41.50 
34.37.02 
44 43.98 

50 5.68 
32 54.02! 

I 18.70! 

6 10.99I 
20 II. 18 

20 14.20 
32 47.43 

57 47.17 
I 19.26 

II 24.72 



II 58.89 

45 9.30 

55 19.12 

I 39-54 

29 50.00 
32 0.19 



- 0.43 

- 0.39 
-h 0.66 

- 0.34 
■+- 0.22 

- 0.56 

- 0.17 
+ 0.02 

- 0.09 

- 0.39 

- 0.39 
-H 0.43 

- 0.37 

- 0.37 
-hio.76 



0.27 

0.24 

14.62 

0.52 

0.29 
0.29 



Clock 
appar'nt. 



s. % 

+17.01 
+ 16.97 

+ 17.17 



+17.18 



+ 17.31 

■ • 

+ 17.20 



+ 18.37 
+ 18.43 

+ 18.39 



+ 18.30 



+ 18.56 
+18.65 

+ 18.57 



Clock 
adopted. 



s. 
+17.00 
+17.01 
+17.01 
+17.01 
+17.04 

+17.05 
+17.06 

+ 17.07 
+ 17.08 

+17.10 
+17.10 

+17.15 

+17.17 



+ 17.26 

+ 17.27 
+17.28 

+ 17.29 

+ 17.29 

+17.30 
+ 17.30 
+ 17.30 
+17.31 
+17.31 
+17.31 

+18.19 
•hi8.i9 

+ 18.39 
+ 18.39 

+18.39 

+ 18.39 
+18.40 

+18.40 
+ 18.41 
+18.42 
+ 18.42 

+ 18.43 



+ 
+ 
+ 
+ 



18.43 

18.43 
18.44 

18.44 
18.44 



+ 1 
+ 
+ 1 

+ 



18 



8.56 

8.58 

8.58 

.58 



18 



+18.59 
+18.59 



Apparent R. 
Ascension. 




h. m. s. s. 

8 50 11.62I- 0.14 

9 5 44-701-69.9: 
9 i8 5.021-f 0.1^ 



9 21 7.84 
12 15 34-43 



33 
0.00 

- 0.56 

12 49 51.01 + 0.09 
I 11 53.97-0.2; 

13 42 19.37+0.09 

14 9 38.55- 003 

14 51 22.87, • • 

14 53 38.27, . 

17 28 48.99I- 0.02 

18 14 39.20'+ 0.84 



23 I 44.184- 3.66 
23 21 18.94+ O.OI 
23 33 12.40I- 0.02 



o 
o 



1 3729 
6 29.46 



+ 0.03 
+ 0.0: 



o 20 59.74, 

o 23 2.82 . . 

12 27 47.61 + 0.24 

o 58 15.43 • • 

1 I 37.36+ 3.1S 
1 II 53.55- 045 

12 24 17.27- . . 
12 24 18.06 . . 



22 9 54.17 + O.OI 


22 18 34.27— 0.0; 


22 30 o.55i- 0.27 


22 34 55.07i+ 0.04 


22 45 2.60 


— 0.03 


22 50 23.52+ 0.0:) 


23 33 12.26 


- 0.14 


1 37-14 


— 0.10 


6 29.32— 0.05 


20 29.22, . . 


20 32.24 


33 6.29- 0,17 


58 5.24 . 


1 I 37.33+ 318 


I II 53.92 


+ 0.77 



7 12 17.18— 0.03 

7 45 27.64— o.n 
19 55 23.08— 1.55 

8 I 57. 60'— O.OI 

I 
8 30 8.30+ 4.57 
8 32 18.49+ 4 5^ 



2. Wire A used ; bisections at wires Ci, Ca, and Ck. 

3. Seems one rev. wrong. 

4. R. A. observed over set E and VII. 

5. Wire B used. 

13.43. Bisections at sets B and D. 



OBSESVATIONS WITH THE TBANSIT CIECLE. 



123 



E 

9 

z 



Circle 
Division. 



I 

2 

3 
4 
5 

6 

7 
8 

9 

10 

II 

12 

13 
M 

15 

i6 

17 
l8 

19 

30 
21 
22 
23 
24 
25 

26 
27 

28 
29 

30 
31 
32 

33 

35 
36 
37 

38 

39 
40 

41 
42 

43 
44 
45 

46 

47 

48 
49 



3SO x6 

23 28 
316 56 

46 54 
38 50 

359 48 
307 28 

348 52 
18 58 

55 36 

55 4 

26 10 

312 14 

47 16 

38 18 

33 10 
145 58 
169 24 

24 22 

38 14 

38 14 
289 24 

34 24 

33 5a 

310 14 

39 40 
39 40 

47 16 

38 6 

323 18 

28 42 

333 20 

69 8 

145 58 
169 26 

155 30 

38 18 

38 18 



MICROSCOPE MICROMS. 



34 a6 
33 52 

310 14 

229 38 

II 44 

307 46 

62 44 

18 48 
18 48 



I. 



r. 



n 



II. 



8.5 
T3O I 

3.5 I 
23.7 
4.2 

5.1 
3.0 

4.9 
5.5 

7.8 

6.7 
II. 8 

2.8 
10.5 

II. 3 

5.4 
14.2 

7.7 
12.6 

12.4 

12.4 

6.5 
8.1 

11. 

9.3 

10 13.0 
10 13.0 

10 17.7 

15. 1 
10. 1 
14.0 

10. o 



// 

5-4 

8.8 

2.2 

19.0 

0.6 

2.5 

1.3 

0.8 

1-9 

4.6 
3.3 

8.3 
29.8 

7.3 

7.5 
2.3 

13.8 

6.4 
8.6 

9.5 

9.5 

5.3 
4.0 

7.5 
6.5 

9.2 
9.2 

14.2 

II. o 

6.8 

9.2 

6.6 



III. 



II. 2 


9.0 


8.7 


7.8 


9.9 


9.0 


II. I 


8.9 


13.9 


10.7 


13.9 


10.7 

• 


13.9 


10.9 


12.3 


9.6 


9.0 


6.9 


6.5 


6.5 


9.8 


8.1 


9.9 


8.2 


10. 1 


8.9 


10.5 


7.9 


10.5 


7.9 



2.5 
5.0 

0.5 
16.8 

27.5 

0.3 
29.9 

1.4 

0.5 

0.3 

29.2 

2.8 

27.7 
3.3 

2.2 
27.1 
7.2 
2.5 
4.1 

5.0 

5.0 

4.5 
28.6 

2.8 

3.5 

3.5 
3.5 

7.6 

5.2 
3.1 

2.8 

3.1 

1.3 
0.4 

3.2 

2.6 

4.3 
4.9 



IV. 



II 



4.1 

2.2 

2.8 

I.I 

3.1 

3.8 

2.8 

2.6 
2.6 



4.1 
7.9 

2.0 
19.8 
29.4 

2.4 

1.6 

2.5 
1.6 

2.5 

1.7 
6.6 

0.1 

7.0 

7.2 
0.1 
9.0 

1.4 
6.8 

6.4 
6.4 

5.8 

3.3 
5.8 
7.0 

6.4 
6.4 

10.3 
7.2 

5.9 
6.8 

4.8 

4.8 
0.8 

2.5 
3.4 
6.5 

6.5 



TELESCOPE MICROMETER. 



Rev. 



7.2 

5.1 
4.8 

1.4 

4.7 
5.7 
5.6 

5.3 
5.3 



I. 



20 

25 

19 
22 

23 

23 
25 
25 
27 

24 
26 

25 

23? 

28 

24 
26 

22 

28 

23 

24 
20 

27 
22 

24 
22 

27 
28 

28 
22 

27 
30 
26 

29 
23 
28 
22 

25 

28 



610 

688 



2. 



440 

555 



26 

24 
22 

23 

25 

22 

25 

21 
23 



054 



654 
490 



840 



320 

■ • 

931 



842 
212 
288 
220 

699 



550 
520 



250 



700 
850 



092 



942 
896 
668 



078 
780 
582 
632 



452 
010 



71 



102 



720 



138 
710 
560 



996 

722 

330 
068 

"5 



5. 



400 



715 
864 



o o 

C o 



016 
600 



745 
865 



300 

381 
921 



680 
893 

525 



845 
187 
410 

528 

961 
320 
540 



• « 

920 



932 
001 

882 
708 

525 



990 



510 



972 
920 
768 
540 
676 



262 
905 



236 
676 



572 
671 



020 



225 

278 

909 

435 



665 
764 

530 



998 



722 
225 



287 



546 
152 

• • 

950 



14.3 

14.3 

14.3 

14.3 
13.6 

13.6 
13.6 
136 
13.6 

13.6 
13.6 
13-6 
13.6 
13.0 

13.0 
13.0 
13.0 
12.5 
12.5 

12.5 

12.5 
12.5 

12.5 

12.5 

12.5 

10.6 
10.6 

10.6 
10.6 
10.6 
10.6 
10.6 

10.6 
10.6 
10.6 
10.6 
10.6 

10.6 



Apparent 
Zenith Dis- 
tance, South. 



// 



o 
^ c 

.2 « 

at; 

S 



10.6 
10.6 
10.6 

10.6 

10.6 
10.6 
10.6 

10.6 
10.6 



350 20 49-3 

23 33 59-4 
317 I 3.9 

46 57 56.41 
38 51 26.9 

359 51 58.2 

307 31 36.4 

348 55 37.2 

19 I 6.5 

55 39 44.7 

55 7 22.3 

26 13 24.7 

312 18 1.8 

47 18 39.2 

38 21 49.6 

33 13 23.6 
146 2 2.1 
169 26 38.0 

24 26 54.3 

38 17 48.2 

38 18 32.8 
289 27 2.5 

34 28 II. 3 
33 55 40.8 

310 18 9.8 

39 42 54.8 
39 42 39.5 

47 18 41.2 
38 10 2.2 

323 20 59.0 
28 44 7.9 

333 23 9.4 

69 10 16.4 
146 2 0.4 
169 28 38.6 

155 34 7.3 
38 21 18.3 

38 20 34.8 



34 29 10.8 

33 55 41.9 
310 18 4.9 

229 41 55.2 

II 47 23.7 

307 50 7.5 

62 47 19.3 

18 54 59-6 

19 2 2.6 



790 
713 



680 
665 

651 



633 
587 
595 



646 



670 

• ■ 

672 

• ■ 

529 

• • 

491 
494 

• • 

504 

• • 

503 

• ■ 

505 



Refraction, 



+ I 



— I 



II 

10.4 
26.7 

57.1 

5.7 

48.6 

0.1 
16.0 
II. 7 
20.5 



-h I 26.5 

-h I 24.7 

-+- 29.0 

- I 4.4 

-h I 4-2 






-h 



46.9 

38.9 
40.1 

II. I 

27.1 



+ 47.1 

+ 47.1 

- 2 47.4 

-h 41.0 

-h 40.2 

— I 10.4 






48.8 
48.8 



-f I 2.0 

+ 45.0 

— 42.6 

+ 31.4 

— 28.7 

-+- 2 29.5 

— 38.7 

— 10,7 

— 26.1 
H- 45.4 






45.4 



510 
521 

• • 

521 



39.5 

+ 38.7 

- I 7.7 

+ I 7.7 

H- 12.0 

— I 14.1 
-H I 51-6 

-h 19.8 

-H 19.9 



Apparent N, 
P. Distance. 



// 



§.2 



41 27 0.1 

74 40 47.3 

8 6 28.0 
98 5 23.3 
89 58 36.7 

50 58 19.3 

358 36 41.6 

40 I 46.7 

70 7 48.2 

106 47 32.4 
106 15 8.2 

77 20 14.9 
3 13 18.6 

98 26 4.6 

89 28 57.5 

84 20 23.7 

85 4 59-2 

71 39 54-3 

75 32 42.6 

89 24 56.5 

89 25 41. I 
340 30 36.3 

85 35 13.5 
85 2 42.8 

I 23 20.6 

90 50 4.8 
90 49 49.5 

98 26 4.4 

89 17 8.4 

14 26 37.6 

79 51 0.5 

24 29 1.9 

120 19 7.1 

85 4 59-5 

61 37 53.3 
75 32 40.0 
89 28 24.9 

89 27 41.4 

85 36 II. 5 

85 4 41.8 

I 23 18.4 

I 23 18.3 

62 53 56.9 
358 55 14.6 
"3 55 32.1 

70 xo 40.6 
70 8 43.7 



-h 2.7 

+ 16.2 
+ 1.8 

- 5.4 

+ 0.9 
-k- 2.0 

- 0.4 

- 0.2 

- 7.3 

- 7.3 

- 0.6 

- 1.5 
-0.5 

- 19-3 

- 1-3 
0.0 

+ 0.9 

+ 2.4 

- 1.3 

- 1.3 

+ 4.3 

- 0.2 

—22.3 
-f 0.7 

- 5.5 

- 5.5 

- 0.8 

- 1.6 

- 2.4 

- 1.3 

- 1.9 

-h 0.5 

- 1.4 
0.0 

- O.I 

— 1.3 

— 1.3 

— 0.2 
—22.3 

— 0.8 

— 0.9 

- 2.4 

- 1.3 

0.0 

-»- 9.7 

-I- 9-9 



No. 



Barom. 



in. 



External 
Therm. 



Attached 
Therm. 



For summary of the elemtnts of reduction see page 3. 



No. 



MOON' 



Parallax. 



-23 26.9 



Semi-diam. 



/ // 
— 16 8.9 



124 



OB8BBVATION8 WITH THE TBAM8IT CIBOLE. 





• 






• 




SECONDS OF TRANSITS OVER WIRES. 


' CORRECTIONS. 


c 3 


DATE. 


ha 

1 

9 




OBJECT. 


t 


Weight. 






Apparent R. ' ^z 


I. 


II. 


III. 


IV. 


V. 


VI. 


VII. 


VIII 


IX. 


Mean wire. 


Inst. 


Clock Clock 


Ascension. ' t - 

i25 




2 































jappar nt. 

i ». 


aaopiea . 




s. 


1868. 






m. 8. 


f. 


1 

! 


h. m. s. 


Nov. 9 


X 


L 


Pnesepe 


N. 


3:. . 


• • 


9.4I12.2 


25.o|28.3'29.5 


30.5 


31.6 


33 5907 


— 0.39I 


+18.59 


8 34 17.37 + 4^ 




3 


a 


Canum Venat. 


E. 




■ • 


• • 


27.230.032.4 


35.037.8 


• • 


• • 


49 32.48 


— 0.14 +18.66 


+18.67 


13 49 51.01 + 0.02 




3 




Polaris, S. P. . . 


E. 




« • 


• • 


. . . . 


• « 


25.057.5 


• • 


• • 


II 46.75 


—II. 71 . . 


+18.68 


I 11 53.72+ 0.77 




4 


a 


Virginis 


E. 


. :44.6 


47.2 


48.855.1 


57.2 


59.2! 5.4 


7.0 


9.6 


17 57.12 


— 0.41 -+-18.73 


+18.68 


13 18 15.391— 0.03 




S 


a 


Bootis .... 


E. 




7.3 


10. 


II. 618. 2 

I 


20.4 


23.4:28.9 


30.6 


33.2 


9 30.39 


— o.36:+i8.65 


+18.69 


14 9 38.72+ 0.0; 


10 


6 




Sun I. N. . . . 


E. 




57.6 


0.6 


2.0, 8.4 


10.6J13.619.2 


20.8 


23.5 


3 10.59 


' 1 
— 0.45< . . , + 18.71 


15 3 28.85 




7 




Sun II, S. . . . 


E. 




13.7 


16.5 


17.824.4 


26.5 


28.6 


35.0 


36.7 


39-4 


5 26.51 


— 0.45I . . -I-18.71 


15 5 44.77 • • 




8 




Polaris, S. P. . . 


T. 




■ • 


• « 


• • • • 


• ■ 


• • 


• • 


57.0 


• • 


II 36.30 


— 0.03I . . -4-18.98 


I 11 55.25+ 2.67 


. 


9 


a 


Bootis .... 


T. 




6.8 

F 


9.6 


II. 217. 7 


19.9 


33. 028. 6 

1 


30.3 


33.8 


9 19.87 


— 0.31+19.03 t+19.01 

t 1 


14 9 38.67!— O.OI 


IZ 


10 




Sun I, S. . . . 


T. 




0.8 


3.5 


5. 211. 5 


13.5 


1 
15.622. 1 


23.9 


26.4: 7 13.61 


~ 0.37 


1 
. . i+19.03 


15 7 32.37 . 




II 




Sun II, N. . . . 


T. 


. i7.4|20.o|2i.637.8J30.o|33.3 38.5 40.i 


43.8 


9 30.06 


— 0.37 


. . ! + 19.03 


15 9 48.82' . . 




13 


a 


Ophiuchi . . . 


T. 


. 17.820.4 


21. 928. o| 30. 3 


I32.338.4 


40.2 


43.6 


38 30.31 


— 0.33 


+ 19.01 1 + I9.13 


17 28 49.11 + 0.12 




13 


e 


Aquarii . . 


T. 




• • • • 




• • 


• • • • 


> • 


• • 


. • • 


. ! 


... .1 . . 




14 


«• 


Aquarii, (R.) . 


T. 


3 


3.0j 5.7 


7.313.3 


15.4 


i7.2 23.5'25.ol27.6 

1 i 


18 15.33 


— 0.14 . . +19.18 


33 18 34.37+ 007 




15 


226Cephei .... 


T. 




53.3 


3.0 


9.5,34.3 


41.8 


50.314.621.4 


31.5 


29 42.19 


— 0.17 . . 1+19.18 


33 30 1. 20,+ 0.64 




16 


C 


Pegasi .... 


T. 




23.826.3 


27.834.0 


36.038.244.4I46.0 


48.4' 34 36.10 


— 0.32 +19.16 


+19.18 


23 34 55.06,+ 0.06 




17 


i 


Cephei .... 


T. 


. ii4.4!20.4 


24.239.2 


43.8 


'490) 3-8 


7.6.13.6 44 44.00 


— O.I7I . . 


+19.19 


33 45 3.02 + 0.49 




18 


a 


Piscis Australis . 


T. 




50.453.4 


55. i| 2.3 


4.7 


7.013.6 


15.6 


18. 7! 50 4.53 


- 0. 30+19. 15 


+19.19 


33 50 23.42'+ 0.03 




19 


I 


Piscium, (R.) . . 


T. 




40.9|43.5 


44.953.2 

1 


55.3 


57.4 


1.4 


3.1 


5.61 32 53^24 

1 


— 0.13 




+19.30 


23 33 12.31'— 0.07 




20 


u 


Piscium . . . 


T. 




3.5 


6.1 


7.5 


13.7 


15.8 


17.824.0 


25.5 


28.0 


52 15.77 


— 0. 23+19.33 


+19.31 


23 52 34.75- 004 




31 


a 


Andromedae, (R.) . 


T. 


2 


4.1 


7.1 


8.715.7 


l8.0|20.4;27.2 


29.0 


31.9 


I 18.01 


— 0.07 


• • 


+19.33 


1 37.16— 0.06 




33 




Jupiter I, N. . . 


T. 


, 


30.3:32.9 


344! . . 


. • 


• • 


50.852.2 


54.9 


19 42.58 


— 0.33 


• • 


+19.33 


20 1.57! 




23 




Jupiter II, S. . . 


T. 




. . . • 


41.543.5 


45.8 


47.749.7 


• • 


. . 


19 45.64 


— 0.33 . . 


+19.33 


20 4.63: . . 




24 


a 


Cassiopes . 


T. 




25.630.1 


32.743.9 


47.6 


51.2 


2.1 


4.7 


9.5 


32 47.49 


—0.18 . . 

1 


+19.33 


33 6.53+ o.io 




25 




Anonymous . . 


T. 




24.627.1 


28.634.7 


36.6 


38.844.8 


46.6 


49.2 


44 36.78 


— 0.33 




+19.32 


44 55.77+ 3.24 




26 




Neptune . . . 


T. 




24.1 


26.8 


28.334.5 


36.5 


38.644.6 


46.1 


48.6 


57 36.46 


— 0.33 




+19.33 


57 55.461 . . 




27 


e 


Piscium . . . 


T. 




6.0 


8.6 


10. 1 16.2 


18.4 


20.326.4 


28. 1 


30.5 


I 18.39 


— 0.33 




+19.23 


1 I 37.29+ 319 




38 




Polaris .... 


T. 




• • 


• • 


49.014.0 


35.0 


57.025.0 


. . 


• m 


II 36.33 


— 0.37 




+19.23 


I 11 55.28 + 2.S<; 




29 




Uranus. 


T. 




• • 


• • 


36.5|390 


41.0 


43.1 


45.5 


. • 


• • 


14 41.03 


— 0.31 




+19.37 


7 15 0.18. . . 

1 




30 


^ 


Geminorum . . 


T. 




54.857.5 


59.3 


6.4 


8.5 


10.7 


17.6 


19.4 


23.3 


45 8.49 


— 0.30 


+ 19.49 


+19.38 


7 45 37.67- 0,15 




31 


X 


UrsaeMinoris.S.P. 


T. 




• • 


« • 


42.0 


51.0 


5.0 


22. 0| 


31.0 


• • 


• • 


55 6.58 


+ O.OI 


• • 


+19.39 


19 55 25.98+ 4.20 




32 


15 


Argus .... 


T. 




25.428.0 


29.7 


36.5 


38.7 


41.0 


47.6 


49.2 


52.1 


I 38.69 


— 0.28 


+ 19.34 


+19 39 


8 I 57.8a;+ 0.13 




33 


c 


Praesepe . . . 


T. 




42.845.4 


47.o;53.6 


55.7 


57.9 


4.5 


6.0 


8.9 


29 55.76 


— 0.31 


• • 


+19.40 


8 30 14.95 


+ 4-50 




34 


K 


Praesepe 


T. 


. ts2.oS4-8 


56.31 3.0 


5.1 


7.213.8 


15.4 


18.3 


32 5.09 


— 0.31 


• • 


+19.40 


8 33 24.22 


+ 4-52 




3S 


e 


HydraD .... 


T. 


. ,17.720.2 


21.827.9 


30.0 


33.338.3 


40.0 


42.4 


39 30.04 


— 0.33+19.52 


+19.40 


8 39 49.21;— 0.12 




36 


a 


Canum Venat. 


N. 


3 15.9190 


20.9 


29.0131.6 


34.343.0 

. . 56.0 

11.0147.0 


44.0I47.4 


49 31.56 


— 0.19+19.67 


+19.64 


12 49 51.01;- 0.02 




% 




Polaris. S. P. . . 


F. 




59.0 15. o| 


14.0 


• • 


• . 


54.0 


8.0 


11 34.45 


- 1.34 


• • 


+19.65 


I 11 53.76!+ 0.54 






Polaris, S. P. . . 


N. 


4 


• • 




23.0 


590 


34.0 


. . 


• • 


II 34.48 


- 1.34 


• • 


+19.65 


1 11 52.79!+ 0.57 




39 


n 


Ursae Majoris . 


N. 


2 


40.644.8 


47.2 


56.6 


59.8 


3.0 


12.5 


15.0 


19.0 


41 59.83 


— 0.14 


• ft 


+19.66 


13 42 19.35 


- O.OI 




40 


n 


Bootis .... 


N. 


3 


52.054.6 


56.1 


2.7 


4.9 


7.0 


13.6 


15.2 


17.9 


48 4.89 


— 0.31 


+ 19.67 


+19.67 


13 48 24.35 


— 0.03 




41 


a 


Bootis, (R.) . . 


N. 


2 


6.1 


8.9 


10.4 


17.0' 


19.2 


21.427.9 


29.5 


32.1 


9 19.17 


— 0.14 


« • 


+19.67 


14 9 38.7oi+ 0.01 




42 




Mercury II, C. 


N. 


I 


35.0 


37.5 


39.0 


45.3 


47.4 


49.455.7 


57.1 


59-7 


17 47.34 


— 0.37 


• • 


+19.67 


14 18 6.74 


- 0.29 


12 


43 




Sun I, N. . . . 


N. 


I 


4.6 


7.5 


9.0 


15.6 


17.7 


19.826.2 


27.8 


30.5 


11 17.63 


— 0.39 


■ • 


+19.70 


15 II 37.04 


■ • 




44 




Sun II, S. . . . 


N. 


I 


21.4 


24.1 


25.7 


32.0 


34.3 


36.242.9 


44.5 


47.0 


13 34.23 


— 0.39 


+19.70 


15 13 53.64,: • . 




45 


6 


Ursae Minoris . . 


N. 


2 


• • 


• • 


• • 


• • 


40.5 


15.0 


23.0 


49.01 


33.0 


14 5.52 


-+- 0.33 


• • 


+19.75 


18 14 25.60I- 1. 31 




46 


a 


Aquarii, (R.) . . 


N. 


3 


• • 


• • 


• • 


• • 


• • 


a . 


■ • 


• • 


• • 


. • • 


• • 


• • 


« • 


... .1 . . 




47 


336 


Cephei .... 


N. 


2 


51.4 


I.I 


6.8 


32.6 


40.8 


48.9 13. I 


19. 1 


39.4 


39 40.36 


— 0.05 


• • 


+19.87 


32 30 0.18'- 0.30 

33 34 55.09+ O.IO 




48 


C 


Pegasi .... 


N. 


2 


23.025.6 


27.0 


33.5 


35.5 


37.543.7 


45.3 


47.9 


34 35.44 


— 0.33 


+ 19.81 


+19.87 




49 


a 


Piscis Australis . 


N. 


I i 


49.8:52.8 


54.3 


1.6 


4.0 


6.313.5 


15. 1 


18.3 


50 3.96 


- 0.33 


+ 19.74 


+19.88 


33 50 33.51+ 0.13 

■ 



I. R. A. observed over wires D«, D3, and set E. 
15.37.47. Bisections over sets B and D. 



OBSBRVATIOKB WITH THE TEANBIT CIRCLE. 



125 







MICROSCOPE MICROMS. 


TELESCOPE MICROMETER. 


c c 
•s 




^mpiesom- 
eter. 






•11 


• 

9) 


Circle 
Division. 














;nith Pc 
lorrecti* 

• 


Apparent 
Zenith Dis- 
tance, South. 


Refraction. 


Apparent N. 
P. Distance. 


2 

l| 

•■■ 


6 

3 


I. 


II. 


III. 


IV. 


Rev. 


I. 


a. 


3. 


1 
4. ' 


5- 


z 
























N^ 




w' 


. 




SCJ 




• / 


r. // 


// 


/. 


ti 














// 


« / //* 




/ ti 


• / // 


II 


I 1 I8 28 


II. I 


8.6 


a. 7 


5.0 


19 


■ • 


• • 


• • 


095 


• • 


10.6 


18 33 1.5 




H- 194 


69 39 43.1 


-hio.o 


2 359 48 


12.8 


9.1 


5.0 


7.0 


23 


• • 


• • I « • 


075 


125 


10.8 


359 51 59.1 




— O.I 


50 58 30.3 


-h 0.9 


3 


307 28 


5.8 


3.5 


0.5 


2.0 


25 


■ • 


• • 




200 


218 


10.8 


307 31 32.6 




- I 13.5 


358 36 40.3 


- 0.6 


4 


49 18 


10 24.7 


21.0 


15.6 


16.4 


26 


• • 


865 




775 


• • 


10.8 


49 20 51.8 




-1- I 5.7 


100 38 18.7 


— 0.3 


5 


18 58 


16. 1 


13. 1 


7.8 


7.7 


26 


250 


270 


no 


080 


10.8 


19 I 10. 1 




+ 19.3 


70 7 50.6 


-H 1.5 


61 55 56 


9.6 


5-4 


28.6 


2.9 


28 


530 


500 




• • 


• • 


10.8 


55 58 42.5 


• • 


+ I 33.6 


107 6 36.3 


- 7.3 


7 56 a8 

8 

9 ; 18 58 


12.5 


8.1 


2.6 


7.0 


26 




• • 




795 


740 


10.8 


55 31 2.9 


383 


-H I 31.2 


106 38 45.3 


- 7.4 


19.6 


17.2 


12.4 


12.6 


26 




058 




923 


• • 


II. 


19 I 8.9 


60s 


-h 30.3 


70 7 50.3 


+ 0.9 


10 56 44 


16.5 


12.5 


7. a 


8.5 


24 


860 


978 




• • 


• • 


II. 


56 47 30.6 


■ V 


-f- I 39.3 


107 55 31. 


- 7.4 


21 ' 56 12 


14.0 


II. 8 


5.0 


7.7 


26 




• • 




.470 


430 


II. 


56 15 6.0 


584 


+ I 27.4 


107 33 54.6 


- y.4 


12 . 26 10 


15.7 


13.8 


8.0 


10. 1 


25 




120 




960 


• ■ 


II. 


26 13 26.9 


580 


-h 38.8 


77 30 16.9 


-H 0.8 


13 1 47 16 


20.6 


18.5 


13.0 


13.0 


27 




702 




772 


• • 


II. 


47 18 41. I 


660 


+ I 4.5 


98 36 6.8 


-H 1.5 


14 ! 141 46 


14.4 


14.0 


7.4 


6.4 


22 




952 




912 


• ■ 


II. 3 


141 50 0.7 


• • 


- 46.8 


89 17 7.3 


-3.8 


15 ] 323 18 


16.5 


14.8 


10.9 


10.5 


26 




635 


• • 


603 


• • 


II. 3 


323 21 1.9 


• • 


- 44.4 


14 36 38.7 


- 0.9 


16 


28 42 


14.3 


"5 


4.8 


7.2 


30 




520 




430 


■ • 


"3 


28 44 6.4 


669 


+ 33.7 


79 51 1.3 


- 0.4 


17 


333 ao 


II. 5 


9.8 


5.6 


5.6 


26 




458 




172 


• • 


"3 


333 23 II. 5 


. . 


- 39.9 


34 39 3.8 


- 0.7 


18 


6q 6 


16.6 


15.0 


9.4 


8.8 


22 




333 




204 


• • 


"3 


69 10 8.7 


670 


+ 2 35.7 


I30 19 5.6 


— 1.3 


19 : Hs 58 


17.0 


15.9 


9.0 


8.6 


22 




860 




800 


• • 


"5 


146 2 0.3 


680 


- 40.3 


85 5 I. a 


4- 0.3 


30 32 42 


20.0 


17.7 


10.9 


12.0 


27 




778 


• • 


608 


• • 


II. 5 


32 44 43.5 


683 


+ 38.5 


83 51 43. a 


— 0.6 


91 169 26 


18.0 


16.6 


la.o 


9.1 


28 




198 


180 


980 


• • 


"5 


169 a8 38.0 


• • 


— II. I 


61 37 54.3 


+ I.I 


22 ! 38 20 


II. 6 


8.2 


4.0 


4.6 


27 


470 


1 


• ■ 


• ■ 


II. 5 


38 aa 56.3 


• • 


+ 47.5 


89 30 4.9 


- 1.3 


23 


38 20 


II. 6 


8.2 


4.0 


4.6 


23 




I 

• • 1 • • 


842 


• • 


II. 5 


38 23 49-6 


• ■ 


+ 47.5 


89 30 58.3 


- 1.3 


24 343 a 


13.6 


"5 


7.8 


8.3 


27 




• t 


■ • 


796 


810 


II. 6 


343 4 46.5 


■ t 


- 18.3 


34 10 49.5 


+ 3.0 


25 


33 18 


18.5 


16.3 


10,5 


II. I 


26 




846 




774 


• • 


11.6 


33 ao 58.3 


• • 


+ 39-5 


84 27 58.9 


—22.2 


26 


34 a6 


15.6 


13.0 


6.4 


9.2 


22 


58i 


582 




530 


486 


II. 6 


34 30 6.4 


• • 


+ 41.2 


85 37 8.9 


— 0.2 


27 


33 5a 


16.4 


13.6 


7.5 


8.3 


24 




230 




170 


• • 


11.6 


33 55 40.7 


• • 


+ 40.3 


8$ a 43.3 


—22.4 


38 


310 14 


,17.5 


15.8 


II. 4 


12.0 


22 


308 


34a 


352- 


314 


aiS 


II. 6 


310 18 7.1 


690 


— I 10.6 


I 23 17.7 


- 0.9 


29 


16 6 


i8.8 


16.0 


9.5 


lO.O 


29 




• • 




968 


896 


12.7 


16 8 II. I 


735 


-h 17.6 


67 14 49.9 


— O.I 


30 II 44 


12.9 


II. 4 


6.8 


6.6 


25 




468 




526 


• • 


12.7 


II 47 34.3 


• • 


-h 12.7 


63 53 58.1 


- 1.3 


31 1 307 46 


10.4 


8.4 


4.8 


6.1 


22 


514 


342 


373 


405 


272 


12.7 


307 50 13.4 


• • 


— I 18. I 


358 55 16.5 


+ 0.7 


32 


62 44 


12.4 


10. 


5.5 


6.6 


26 




420 




240 


• • 


12.7 


63 47 II. 9 


744 


+ I 57.7 


113 55 30.8 


- 1.5 


31 


19 6 


14. r 


II. 3 


6.5 


8.6 


22 




989 




999 


• • 


12.7 


19 10 1.7 


. • 


-h 21. I 


70 6 44.0 


+ 9.5 


34 18 48 


14.2 


II. 8 


7.4 


8.6 


20 




860 




860 


• • 


12.7 


18 53 33.8 


. • 


-H 30.8 


69 59 15.8 


+ 9-6 


35 . 31 56 


II. 4 


8.8 


a. 6 


4.7 


26 




770 




750 


• • 


12.7 


31 59 7.3 


750 


H- 38.0 


83 6 6.5 


H- 0.1 


36 


359 48 


7.6 


6.0 


3.6 


3.0 


23 




• • 


628 


• * 


• • 


13.7 


359 51 57.9 


• « 


— 0.1 


50 58 19.0 


— I.O 


37 


307 28 


7.4 


7.0 


5.1 


5.0 


24 


738 


730 




749 


564 


13.7 


307 31 38.1 


• • 


— I 18.3 


358 36 41.0 


- 0.5 


33 


307 28 


7.9 


7.3 


5.0 


5.5 


24 


870 


935 


882 


931 


870 


13.7 


307 31 36.9 


709—1 18.3 


358 36 39-8 


- 1.7 


39 348 53 

1 


8.4 


5.7 


3.7 


4.3 


25 




061 




913 


• • 


13.7 


348 55 37.1 


698 


- II. 8 


40 I 46.5 


- 2.4 


40 


19 46 


8.2 


6.8 


4.0 


3.8 


24 




562 




435 


• • 


13.7 


19 49 44.1 


• • 


-h 31.7 


70 56 37.0 


- 1.5 


41 160 56 


8.0 


7.6 


3.2 


2.4 


28 


^5 


069 




002 


834 


13.7 


160 58 50.6 


697 


— 30.7 


70 7 51.3 


+ 1.6 


42 ] 50 38 


9.6 


7.7 


3.2 


4.5 


25 




435 




285 


• • 


13.7 


50 41 30.3 


• • 


+ I 13.3 


loi 49 4.7 


- 8.8 


43 56 28 


9.1 


7.7 


4.2 


4.7 


26 


298 


245 




• • 


• • 


13.7 


56 31. 17.4 


■ • 


+ I 30.3 


107 39 8.9 


- 7.4 


44 ' 57-0O 

45 : 

46 1 140 6 


10.2 


6.7 


3.3 


3.3 


24 




• • 




940 


875 


13.7 


57 3 36.0 


680 


+ I 33.3 


108 II 39.4 


- 7.5 


II. I 


10. 1 


4.4 


4.7 


23 




• • 




542 


489 


13.7 


140 9 56.1 


713 


- 50.3 


90 57 15.4 


— 0.8 


47 i 323 18 


7.0 


4.8 


2.2 


3.8 


27 


365 


396 




300 


376 


13.7 


323 21 1.7 


• • 


- 44.9 


14 36 38.0 


- 1.5 


48 . 28 42 


9.6 


6.2 


1.8 


4.0 


30 




928 




747 


• • 


13.7 


38 44 7.4 


■ • 


+ 33.1 


79 51 1.7 


— 0.2 


49i 69 8 


13.4 


II. 4 


5.2 


7.7 


30 




500 




365 


« • 


13.7 


69 10 9.3- 


• • 


-H 2 37.7 


I30 19 8.3 


+ 1.3 


No. 


Barom. 


Extet 
Ther 


nal 
m. 


Attached 
Therm. 






For su 




t of rec 






No. 




MOON'S- 




in. 


• 


• 


Parallax. 


Semi-diam. 
















mmaty 


of the 


dement 


fuctioH 


/// /tf// 3. 




/ // 


/ // 



126 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
Nov. 12 



13 



u 
.0 

a 



I 

2 

3 
4 
5 

6 

7 
8 

9 
10 

II 
12 
13 
14 
15 

16 

17 
18 

19 
20 

21 
22 

23 

24 

25 

26 

27 
28 

29 

30 

31 
32 
33 
34 

35 
36 
37 

38 

39 

40 

41 
42 
43 

44 

45 
46 

47 

48 

49 
50 



OBJECT. 



t Piscium, (R.) 
y Pegasi, (R.) 

Jupiter I, N. 

Jupiter II, S. 
a Cassiopeae, (R.) 

Anonymous 
Neptune^ . 

e Piscium 
Polaris . 

e Ceti . . 

Uranus I, C. 

Uranus II . 
e Draconis, S. P 
^ Ursae Min., S. P 
15 Argus . 



C Praesepe 

K Praesepe 

< Ursae Majoris, 

tc Cancri . 

a Cephei, S. P. 

a Hydras, (R.) 
a Canum Venat. 

Polaris, S, P. 
a Virginis 

Sun I, N. . 

Sun II, S. . 

Anon3rmous 
o Cephei . 
8 Piscium 

i Piscium 
4i63Groombridge 
u Piscium 
y Pegasi, (R.) 
Jupiter I, S. 



Jupiter II, N. 
K Draconis, S. P 
a Cassiopeae . 

Anonymous 

Neptune 

^ Piscium 
Polaris 
If Piscium, (R) 
o Piscium 
j3 Arietis, (R) 

a Arietis . 
f» Ceti . . 
t Cassiopeae . 
5 Ursae Min., S. 

Sylvia? 

Undina? . 



(R.) 






V 
(A 

.a 
O 



N. 
N. 

N. 
N. 
N. 

N. 

N. 
N. 
N. 
N. 

N. 
N. 

N. 
N. 
N. 

N. 

N. 
N. 
N. 
N. 

N. 
E. 
E. 
E. 



E. 
E. 
E. 
E. 
E. 



E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 

E. 
E. 
E. 
E. 
E. 
E. 






2 
2 

3 

2 
2 

I 

3 

3 
2 

3 

3 

3 

2 

3 
3 

I 
I 

2 

3 

2 

1.2 



SECONDS OF TRANSITS OVER WIRES. 



I. 



40.4 

56.8 



II. 



43.0 
59.6 



16. 819. 5 



34.0 
18.6 

5.1 

• • 

56.3 
22.2 

• • 

51.5 

• • 

24.3 



51.5 
33.6 

5.5 
33.0 



9.6 
26.4 



24.0 
46.4 

39-8 



5.1 
24.0 

55.5 
13.5 

4.7 



56.1 
51.0 

14.3 
31.0 
29.3 

• • 

32.2 
47.3 



26.2 

21.2 

8.0 

• • 

59.0 
24.8 
43.8 

• • 

27.2 

50.6 

54.1 

39-5 

8.1 

27.5 



12. 1 
29.0 



30.8 
48.9 

42.5 



4.8 
6.7 



57.1 
28.5 

58.1 

16. 1 

7.4 



58.6 
54.0 

17.0 
33.6 

35.1 

34.8 
49-7 



III. 



IV. 



44.4 

i.o 

21.0 

28.1 



50.5 
5.3 

• • 

30.2 



27.832.1 



22.7 
9.4 

42.5 
0.5 



28.9 
15.5 

7.o| 
6.8 



26.4 
31.0I33.4 



39-7 
32.01 



21.3 
44.1 



28.835.7 



52.955.0 
2.1 

49.0 

15-9 
II. I 



55.5 

45.9 
9.6 

24.2 



43.946.048.0 



22.0 



13.8 
30.6 



34.9 
50.4 

43.9 



7.0 
8.1 



15.3 

53.1 
30 

o.oi 

17.6 



8.9 
35.0 

• • 

0.0 
0.0 

18.5 
35.0 
39-2 
42.2 

36.5 
51.4 



55.0 



20.5 
37.2 



50.7 
56.5 

50.1 



9.0 



17.4 

34.7 
.0 

5.9 
23.6 



942 



15.0 
1.0 

• • 

6.4 
2.1 

25.3 
41.4 
54.6 
32.1 
42.7 
57.3 



V. 



VI. 



52.7 

7.6 

32.2 



34.1 
31. 1 

17.6 
32.0 



54.6 

9.8 

• • 

34.3 



VII.VIIMX. Mean wire 



I 



2.1 



o.7| 
II. 7 . . 
37.2I38.8 
36.2 . . 



33.1 
19.6 

54.5 



8.810.9 



35.7 

15.4 
56.0 

37.7 

57.1 

4.5 
52.0 

18.0 

6.9 



31.0 
20.3 

22.5 
39-3 



56.1 
58.7 

52.1 



II. 2 



195 
28.0 

45.6 
8.0 

25.9 

17. 1 
29.0 

• • 

8.5 
4.0 

27.5 

43.5 
0.0 

23.7 
44.6 

59.5 



37.8 
9.8 

9-5 
39-9 

59.3 
6.5 

• • 

19.9 
2.4 



6.5 
6.0 

23.5 

24.5 
41.4 



1.3 
0.7 

54.x 



13.4 



21.4 
22.4 

49.1 
10. 1 

27.8 

19.0 
48.0 

• • 

10.3 
6.4 

29.6 

45.3 
4.8 

15.7 

46.3 

1.5 



38.3 

390 

25.9 
22.0 

17. 1 

44.3 
40.0 

51.8 

• • 

46.7 

3.4 
13. 1 

4.3 
26.2 

49-3 



7.7 

43.5 
24.5 

31.0 

47.8 



40.3 
40.6 

27.3 
1*8 .'6 

46.0 

47.2 

• • 

48.5 

5.4 
14.9 

6.7 
27.7 



CORRECTIONS. 



appar nt. 



I m. s. 

4.8! 32 52.58 

. . 6 9.58 

41.2 19 29.08 

19 32.20 



43.0 

29.7 

■ • 

21.0 
48.6 
3*9.8 

• • 

51.0 

8.1 
17.4 
10.6 

30.3 



46.240.7 



16.9 
6.8 

0.2 



17.5 
24.5 

23.6 

3.8 

0.1 

16.0 

33. 9 

25.1 
17.0 

1*6 .6 
8.7 

36.4 

51.5 
20.0 

7.5 
52.2 

7.4 



9.1 

• • 

25.5 

32.7 
49.6 



21.4 
8.5 

1.8 



10.5 
26.6 

35.3 
52.1 



27.6 
II. o 

4.4 



19. 021. 7 
26.0I28.5 



59.5 

2.9 

18.0 

35.4 
26.7 



18.3 



51.5 

7.4 
20.2 

38.0 
29.1 



20.8 



14. 617. 2 



38.0 

53.2 
24.2 



40.8 
56.0 

31.1 



54.457.0 
9.0J11.5 



44 36.14 
57 30.91 
I 17.57 
II 31.92 
17 8.78 

14 35.38 

14 35.58 

48 15.63 
54 55.85 

I 37.76 

29 55.05 
32 4.401 

49 52.03 
o 17.91 

15 6.81 

20 48.03 
49 31.07 
II 31.18 
17 55.46 

15 22.44 

17 39.27 



12 55.97 
20 58.66 

32 52.10 



6 9.07 
19 16.31 

19 19.45 
27 28.36 
32 45.61 
44 7.98 
59 25.76 

I 17.00 
II 26.32 



38 
47 



8.40 
4.28 



59 27.49 
5 43.39 
17 59.81 
27 24.21 
35 44.52 
7 59.40 



'•J 
0.18; 

0.16; 

0.241 

0.24' 



s. 



— 0.23 

— 0.23 

— 0.23 
+ r.o6 

— 0.27 

— 0.19 

— 0.19 

— 0.21 

— 1.67 

— 0.31 

— 0.20 

— 0.20 

— 0.06 

— 0.22 

— 0.17 



+ 19.94 



Clock 
adopted. 



s. 
+ 19.90 
+ 19.91 
.f 19.9a 
+ 19.92 



+20.23 



+20.19 



0.22 

0.14 +20.14 

2.32 . . 



— 0.26 

— 0.28 

— 0.28 



— 0.02 

— 0.21 

— 0.22 



+20.29 



+ 20.46 
+20.45 



— 0.161 

— 0.23i 

I 

— 0.23I 

— 0.28' 

— 0.09' 

— 0.22 

— 0.22 

— 0.22 

+ 2.04 

• • 

— 0.21 4-20.56 

— 0.14 

— 0.18 +20.51 

— 0.2I +20.45 

— 0.041 

— 0.351 . . 

— 0.22, . . 

— 0.22! . . 



+ 19.93 
+ 19.94 
+ 19.94 
+ 19.94 

+ 19. W 

+ 20.09 
+ 20.09 

+ao. 10 

-+90.I0 

+20.11 

+ 20.12 
+ ao.i2 
+20.13 
+20.13 
+20. 14 

+ 20.14 

+ 90.21 
+ 90.22 
+ 20.22 

+ 20.27 
+ 20.27 



+ 20.45 
+ 20.45 

+ 20.46 



+ 20.47 
+ 20.47 

+ 20.47 
+ 20.48 
+ 20.48 
+ 20.48 
+ 20.49 

+ 20.49 
+ 20.49 

+ 20.50 
+20.51 

+ 20.51 
+ 20.51 
+ 90.52 
+ 20.52 
+ 90.53 
+ 20.54 



Apparent R. 
Ascension. 



h. m. s. 

23 33 12.30 
o 6 29.33 
o 19 48.76; 
o 19 51.881 



3 • 






s. 

0.06 
0.01 



o 44 55.84+ 3.13 

57 50.62 . . 

1 I 37-28!+ 3.19 
I II 52.92+ 0.86 
I 17 28.45 0.00 

7 14 55.28 . . 

7 14 55.48 . 

19 48 35.52+ 0.46 
19 55 14.28- 6.35 

8 I 57.561— 0.14 

8 30 14.97-^ 4.4^ 
8 32 24.3^+ 4.49 

8 50 i2.io{+ 0.07 

9 o 37.82!— 0.06 
21 15 26.78— 0.21 



9 21 7.95— 0.06 

12 49 51.14 + 0.08 
I II 49.08— 2.83 

13 18 15.42— 0.06! 



15 15 42.43 
15 17 59.26 



23 13 16.40 
23 21 18.90 

23 33 12.34 



— 0.67, 
+ 0.04 



— 0.01 



o 6 29.38 
o 19 36.55 



o 19 

12 27 

o 33 



+ 0.05 



o 
o 

I 

I 

• 

I 
I 



44 
59 

I 
II 

38 
47 



39.69 

48.56;+ 0.91 

6.001— 0.40 

28.241+ 3-25 
46.03 



37.27 



+ 3.19 



48.85— 2.9I1 



28.69— o.io 
24.65'+ 0.04 



1 59 47.82J+ 0.01 

2 6 3.691+ 0.09 
2 18 20.29]— 0.311 

14 27 44.38'+ 1. 17 

2 36 4.83I . . 

3 8 19.72I . . 



22.24. Transit over set E. 
28. Wire B used. 
44. Seems one rev. wrong. 



OBSEBVATIOKS WITH THE TRANSIT GIBCLE. 



127 



MICROSCOPE MICROMS. 



« ' Circle 
g Division. 



I 

a 

3 
4 
5 



7 
8 

9 

10 

II 

12 

13 
U 
15 

i6 

17 
I8 

19 

20 

31 
22 

23 
24 

25 
26 

27 
26 

29 

30 
31 

32 

33 
34 

35 
36 
37 
38 
39 

40 

41 

42 

43 
44 

45 
46 

47 
48 

49 
50 



TELESCOPE MICROMETER. 



145 58 
155 30 

38 20 

38 ao 

196 52 

33 18 

34 26 

33 52 

310 14 

47 40 
z6 4 

288 48 ' 

307 46 , 
62 44 I 

19 6 I 

18 48 I 
189 36 i 

27 38 
280 56 I 

132 58 ' 
359 48 I 
307 28 

49 18 ; 

56 44 , 

57 16 

32 42 
331 28 ' 

33 10 



33 54 
325 10 

32 42 

155 30 

38 22 

38 22 
289 24 

343 2 

33 18 

34 28 

33 52 
310 14 

155 44 

30 20 

161 14 

16 o 

30 36 

332 2 

295 8 

32 36 

33 36 



I 



I. 



r. 



12 



// 

7.5 
6.8 

10.2 

10.2 

5.4 

7-5 
10.2 

9.6 

5.2 

9,9 

« 

12.2 

5.4 
9.2 

6.0 

II. 8 
10.8 

5.1 
9.2 

5.6 

6.3 
9.0 

1-3 
8.9 

12.0 

5.8 

5.3 
7.6 

9-1 

7.7 
6.1 

21.6 

4.5 
5.1 

5.1 i 
4.0 I 
6.0 , 
6.0 

9.5 ' 

I 

8.1 
4.2 
2.8 
9.2 
3-5 

6.4 
7.7 
3.5 
5.5 
4.8 
9.2 



II. 



7.1 
4.8 

7.6 
7.6 
6.9 

5.3 
7.6 
7.2 

3.9 
8.7 

9.2 

4.0 
7.2 
4.2 

9.0 

8.2 
5.8 
6.4 
5.2 

5.0 

5.7 
0.2 

4.0 

7.7 
2.1 

2.2 

3.2 

6.2 

4.6 

2.7 
19.0 

3.2 

2.3 

2.3 
2.2 

3.5 
4.0 

6.3 

6.0 

1.5 
0.2 

6.2 
2.7 

2.7 
5.0 
2.0 

2.5 

3.5 
5.8 



III. 



II 

1.9 
0.6 

3.5 

3-5 

2.8 

0.7 
2.8 
2.2 

1.3 
3.9 

5.7 

2.6 

5.1 
0.6 

5.4 
4.9 

3.1 

2.8 

3.1 

1.2 

3.5 

29.7 

2.7 

4.3 
28.9 

27.4 

1-7 
1.6 

0.5 

0.9 

12.5 

29.5 

29.5 

29.5 

29.7 
0.0 

29.0 
1.7 

29.0 

0.6 

26.1 

2.7 
0.0 

29.0 
0.0 

29.2 
0.5 

28.0 

1.5 



IV. 



II 

i.o 
0.4 
4.9 

4.9 
1.0 

2.7 
5.2 

3.8 

2.7 

5.4 

6.5 

3.8 

6.7 
2.1 

7.0 
6.8 
1.0 
4.6 
3.6 

1.0 

4.3 
29.8 

2.8 

6.1 I 

3.1 I 
0.9 

3.5 
4.7 

2.2 

3.2 

15.6 

0.3 

0.3 

0.3 

2.3 
1.8 
2.1 

3.7 



2.2 I 
1.0 ' 

27.0 ! 

4.0 

29.3 I 

1.3 
3.5 
0.8 

2.0 

29.7 
2.6 



Rev. 



23 

23 

23 
20 
26 

27 
21 

24 

23 

22 

23 

19 
22 

26 

23 
21 

26 

25 
19 

23 

23 

25 
28 

27 

25 
22 

20 
25 

23 
26 

25 
23 
24 

27 

27 
28 

24 
27 

24 

23 

28? 

26 

28 

28 
26 

25 
21 

25 
22 



1. 



2. 



. . 406 
030 ' 005 
205 210 



762 
360 

944 
080 



375 
558 

a • 

952 

• • 

656 

■ ■ 

945 



249 

878 

064 
559 



510 

948 

274 

154 
601 

658 
835 



3. 



014 



550 



340 280 



000 



990 



080 
590 



. . 300 

. . 340 

730 : 7Po 

030 190 

405 350 



340 
430 
460 
400 ' 



395 



220 



285 
370 

730 

170 no ' 140 



130 150 
. . 060 



000 



940 

220 
520 
230 



420 



290 



285 



5x0 

395 



4. 



205 

280 



2T8 

781 

076 

385 



701 

142 

093 
510 

535 
790 



260 



350 
900 

435 
718 

490 

275 
530 

175 



090 
310 
350 
400 
260 



200 
000 
200 
990 

830 

375 

435 
280 

220 

520 



5. 



o o 
c o 



340 
900 



226 
250 

538 

174 
740 

045 



125 



370 

• • 

760 



459 

482 

278 

555 
265 

240 



405 

735 



520 
100 



172 



350 
150 

700 
120 
840 
180 



850 



355 



7 
7 
7 

7 
7 
7 
7 
7 

7 
7 
7 
7 

7 
7 
7 
7 
7 

7 
7 
7 
7 
7 

7 
7 
7 
7 
7 

7 
7 
7 
7 
7 



3 
3 
3 
3 
3.7 



Apparent 
Zenith Dis- 
tance, South. 



// 



146 2 
155 34 



2.5 

9.9 

38 24 3.9 

38 24 47.5 

196 55 16.8 






33 20 57.5 

34 30 32.9 

33 55 38.9 
310 18 8.6 

47 44 13.6 
16 8 0.7 

288 53 I.O| 
307 50 12.4 

62 47 10.4 

19 10 1.2 

18 52 33.7 
189 40 13.9 

27 41 27.2 
281 o 56.6 

133 2 3.5 

359 51 57.8 

307 31 37.4 

49 20 46.5 

56 47 5.2 

57 19 32.2 

32 46 26.6 

331 30 17.9 

33 13 24.6 

33 58 2.8 
325 13 18.9 

32 44 15.4 

155 34 8.7 

38 25 50.8 

38 25 6.6 

289 27 4.4 
343 4 47.8 

33 21 47.8 

34 31 1.6 

33 55 42.6 
310 18 8.7 

155 46 57.1 

30 23 18.8 

161 16 54.2 

16 2 55.4 
30 39 18.2 

332 5 33.3 
295 12 35.8 

32 39 35.1 

33 40 14.3 



731 

• ■ 

733 



747 

• • 

750 

• • 

792 
801 

• • 

804 



804 



730 



Refraction, 



4- 



+ 



-f 



// 



40.8 

27.5 
48.0 
48.0 

18.5 

39-9 
41.8 

40.9 

II. 6 

6.9 

17.8 



- 2 58,3 

— I 19. I 
+ I 59.2 



-H 
4- 
+ 

- 5 

— I 



21.4 
21. 1 
10.5 

32.3 
8.0 



6.0 

— 0.1 

— I 18.4 
-h I 10. 1 



I 
I 



4- 

+ 
— 2 

-^ • 

+ 

4- 

— I 

+ 

-I- 

+ 

— 2 

+ 

4- 



30.5 
32.4 
38.4 
32.4 
39- 1 

40.3 
41.6 

38.5 

27.3 
47.6 

47.6 

48.7 
18.3 

39-6 
41.4 

40.5 
II. o 

27.2 

35.5 
20.5 

17.4 

35.9 
32.1 

8.1 

38.9 
40.4 



Apparent N. 
P. Distance. 



// 



85 4 59-5 
75 32 38.8 
89 31 13. I 

89 31 56.7 
34 10 45.9 



= s 

c o 

— O 

SO 



84 27 58.6 


—22.1 


85 37 35.9 


— 0.2 


85 4 41.0 


—22.4 


I 23 18.2 


— 0.1 


98 51 41.7 


- 1.3 



67 14 39-7 

33Q 56 23.1 
358 55 14.5 
"3 55 30.8 

70 16 43.8 
69 59 16.0 
41 25 56.8 
78 48 20.7 
332 2 9.8 

98 4 23.7 
50 58 18.9 

358 36 40.2 



// 

1.6 

1.3 
1.3 
1.3 
1.4 



-,o.i 

— 0.4 

— I.I 

— 1.7 

4- 9.4 
4- 9-5 

— 1.2 I 

— 1.2 I 
0.0, 



-H 1.3 

- 1.4 

- 1.6 



I 



100 28 17.8 — 1.4 



107 54 56.9 

108 27 25.8 

83 53 26.2 
22 36 6.7 

84 20 24.9 

85 5 4.3 
16 18 58.5 

83 51 15. I 
75 32 39-8 
89 32 59-6 



- 7.5 

- 7.5 
-17.3 
4- 0.4 

- 0.3 

4- 3-2 

4- 1.0 

~ 1.0 

- 0.3 

- 1.3 



89 32 15.4 


- 1.3 


340 30 36.9 


+ 3.6 


34 10 50.7 


4- 3.6 


84 28 48.6 


— 22.3 


85 38 4.2 


— 0.2 



85 2 44.3 
I 23 18.9 

75 19 51.3 
81 30 15.5 

69 49 47.5 

67 9 34.0 

81 46 15.3 

13 II 22.4 

346 16 48.9 

83 46 35.2 

84 47 15.9 



1—22.5 

;+ 0.9 
|- 0.4 

1+ 2.3i 
I — 15.2 j 



4- 2.2 , 

4- 2.5 ' 
0.5 
2.4 
2.0 

2.3 



4 



No. 


Barom. 


External 
Therm. 


Attached 
Therm. 


For summary of the elements of reduction see page 3. 


No. 


MOONS- 


in. 


• 


• 


Parallax. 


Semi-diam. 








• 


1 II 



128 



OBSEBVATIOKS WITH THE TBAN8IT CIBCLE. 































• 






• 




SECONDS OF TRANSITS OVER WIRES. 


CORRECTIONS. 




CO 


DATE. 


s 




OBJECT. 


Observe 


Weight. 










Apparent R. 
Ascension. 


tt-z 


I. 


II. 


III. 


IV. 


V. 


VI. 


VII. 


VIII 


IX. 


Mean wire. 


Inst. 


Clock 
appar*nt. 


Clock 
adopted. 


Misccl 
Corro* 


1868. 








1 


m. s. 


s. 


8. 


s. 


h. m. s. ' 


S, 


Nov. 13 


I 




Weisse III, 400 . 


E. 




15.6 


18.3x9-7 


25.9 


28.030.0 


36.0 


37.5 


40.0 


23 27.89 


— 0.22 


• • 


+20.54 


3 23 48.21 + 3.01 




2 


6 


Persei .... 


E. 




58.4 


2.3 4.6 


13.5 


16.6 


19.6 


28.6 


31.0 


34.7 


33 16.59 


— 0.12 


• • 


4-20,54 


3 33 37. or 0.00 




3 


V 


Tauri .... 


E. 




8.5 


11.313.0 


19.6 


22.0 


24.1 


30.7 


32.5 


35.4 


39 21.90 


— 0.17 


-1-20.56 


+ 20.54 


3 39 42.27— O.OI 




4 


12 


Canum Venat. 


T. 




14.8 


18. 019. 9 


28.0 


30.5 


33-2 


41.0 


43.1 


46.3 


49 30.53 


— O.IO 


4-20.66 


-+-20.66 


12 49 51.094- O.OI 




5 




Polaris, S. P. . . 


T. 




■ • 


• • 


• • 


• • 


• • 


• • 


53.0 


. . 


• • 


II 40.50 


— 10.04 


• • 


4-20.67 


I II 51.13 — 0.4S 




6 


a 


Bootis .... 


T. 




5.3 


8.0 


13.9 


16.2 18.3 


20.4 


22.6 


28.6 


31.4 


9 18.30 


— 0.22 


4-20.65 


+20.69 


14 9 38.77 + 0.05 




7 




Mercunr II, S. 
Ursae ^Iino^is . 


T. 




53.4 


56.1 


57.6 


3.9 


6.1 


8.1 


14.3 


15.9 


18.5 


17 5.99 


- 0.39 




+ 20.69 


14 17 a6.29— 0.2S 




8 


iS 


T. 




53.2 


2.7 


8.1 


31.640. 1 


47.4 


10.3 


16.5 


25.8 


50 39.52 


- 0.59 




4-20.71 


14 50 59.64 — 1. 13 


14 


9 




Sun I, S. . 


T. 




15.6 


18.4 


24.2 


26.3J28.6 


30.7 


32.9 


38.7 


41.4 


19 28.53 


- 0.43 




+20.72 


15 19 48.82 . . 




10 




Sun II, N. . . . 


T. 




32.5 


35.2 


41.2 


43.2145.5 


47.6 


49.7 


55.8 


58.3 


21 45.44 


- 0.43 




+20.7* 


15 22 5.73, . 




II 


a 


Ophiuchi . 


T. 




15.9 


18.6 


20.1 


26.4 


28.5 


30.6 


36.7 


38.5 


41.1 


28 28.49 


— 0.26 


4-20.75 


4-20.76 


17 28 48.99:4- 0.02 




12 


X 


Aquarii 


H. 


3 


13.0 


15.6 


17.0 


23.4 


25.4 


27.4 


33.5 


35.1 


37.7 


45 25.34 


- 0.37 




• • 


1 




13 




Anonymous 


H. 


2 


22.4 


24.8 


26.4 


32.7 


34.6 


36.7 


42.8 


44.4 


47.0 


2 34.64 


— 0.32 




4-20.89 


23 2 55.21+ 3 74 




14 


y 


Pegasi, (R.) . . 


T. 


3 


56.0 


58.6 


4.3 


6.5 


8.6 


10.6 


12.8 


18.7 


21.4 


6 8.61 


— 0.21 




-h20.9i 


6 29.31— O.OI 




15 




^ upiter I, N. . 


T. 


• 


52.4 


54.8 


56.3 


• • 


• • 


• • 


12.6 


14.3 


16.8 


19 4-53 


— 0.32 




4-20.91 


19 25.12I . . 




16 




\ upiter II, S. . . 


T. 


• 


. • 


• • 


3-5 


5.6 


7.8 


9.7 


II. 8 


• • 


• • 


19 7.69 


— 0.32 




-h20.9I 


19 38.28 . . 




17 


K 


>raconis, S. P. . 


T. 


• 


4.6 


57.0 


52.8 


34.2 


28.0 


21.9 


3.1 


58.5 


51.4 


27 27.94 


- 0.94 




4-20.92 


12 27 47.924- 0.22 




18 


a 


Cassiopeac . . . 


T. 


• 


23.6 


28.0 


30.8 


41.8 


45.4 


49.0 


59.9 


2.4 


7.2 


32 45.34 


-\- 0.06 




-H20.92 


33 6.32,— 0.07 

1 




19 




Anonymous 


T. 


3 


49.0 


51.6 


53.3 


59.1 


1.3 


3.2 


9-4 


II. I 


13.6 


• 

44 1.29 


— 0.30 




+20.93 


44 ai.92|4- 3-23 




20 




Neptune 


T. 


• 


8.2 


II. I 


12.3 


18.6,20.6 


22.6 


28.8 


30.4 


32.9 


57 20.61 


— 0,30 




4-20.93 


57 41.24 


• • 




21 


e 


Piscium . . . 


T. 


• 


4-3 


7.0 


8.4 


I4.6;i6.6 


18.6 


24.8 


26.4 


29.0 


I 16.63 


— 0.29 




4-20.93 


I I 37.27 


-h 3-» 




22 
23 




Polaris . . . "j 


T. 
T. 


• 
• 


• • 

• • 


41.0 

• • 


41.0 
32.0 


• • 

59.0 


• 

23.0 


■ ■ 

46.0 


58.0 
13.0 


59.0 

• • 


46.0 

• • 


[ II 21.32 


-h 9.50 




4-20.94 


I II 51.764- 0.30 




24 


n 


Piscium, (R.) . 


T. 


3 


■ • 


• • 


• • 


• • 


• • 


• • 


• « 


• • 


• • 


■ • • 


1 
t 
. . . . 


« • 


t . • .| • • 




25 





Piscium 


T. 




55.7 


58.3 


59-7 


5.9 


8.0 


10. 1 


16.3 


17.8 


20.4 


38 8.02 


— 0.28 


4-21. 01 


+20.95 


1 38 28.69,- <>-'o 




26 


a 


Arietis .... 


T. 




13.7 


16.6 


18.2 


24.9 


27.1 


29.4 


35.8 


37.4 


40.3 


59 27.04 


— 0.20 


4-20.98 


4-20.95 


I 59 47.79- o« 




27 


^ 


Ceti 


T. 




30.6 


33.2 


34.6 


40.9 


43.0 


45.0 


51.3 


52.9 


55.4 


5 42.99 


— 0.28 


4-20.92 


+20.96 


2 6 3.674- 0.07 




28 


I 


Cassiopeac . . . 


T. 




• ■ 


• • 


• • 


59-7 


5.0 


10.4 


20.5 


24.5 


31.2 


17 59.93 


-H 0.29 


• « 


4-20.96 


2 18 2i.z8|4- 0.5S 




29 


5 


Ursx Min.. S. P. . 


T. 




• • 


• • 


• • 


• • 


• • 


• • 


48.9 


43.0 


32.0 


26 23.55 


— 1.24 


■ • 


4-20.96 


1 
14 26 43.27i+ 004 




30 




Sylvia .... 


T. 




17.2 


19- 5 


21.4 


■ • 


• • 


• « 


. . 


* • 


42.1 


34 29.53 


— 0.29 


• • 


4-20.96 


2 34 50.20 


■ 




31 


6 


Persei .... 


T. 




58.2 


2.1 


4.2 


13.4 


16.4 


19.3 


28.5 


30.7 


34.6 


33 16.38 


— 0.03 


« • 


+20.99 


3 33 37.34 


4- 0.31 




32 


A 


UrsaB Min., S. P. . 


T. 




• • 


• • 


49.0 


I.O 


II. 


29.0 


35.0 


• « 


• • 


55 13.40 


—12.82 


• « 


4-21.09 


19 55 22.67 


+ 3.95 




33 


C 


Praesepe 


T. 




41. 1 


43.9 


45-4 


52.1 


54.1 


56.3 


2.8 


4.5 


7.3 


29 54.17 


— 0.22 


• • 


4-21. 10 


8 30 15.05 


+ 440 




34 


K 


Prasepe . . . 


T. 




50.5 


53.3 


54.9 


1.5 


3.6 


5.7 


12.3 


13.9 


16.5 


32 3.58 


— 0.22 


• fl 


4-21. 10 


8 32 24.46 


4- 4.42 




35 


i 


Ursas Majoris, (R.) 


T. 




33.1 


36.6 


38.9 


48.1 


51. 


54.3 


3.5 


6.1 


9.6 


49 51.24 


4- 0.04 


• • 


4-21. II 


8 50 13.39 


4- 0.27 




36 


K 


Cancri .... 


T. 




4.5 


7.2 


8.6 


15.0 


17.1 


19. 1 


25.5 


27.0 


29.6 


17.07 


— 0.27 


4-21. 15 


4-21. II 


9 37.91 


— 0.04 


17 


37 




# 

Polaris, S. P. . . 


T. 




• • 


• • 


36.0 


10. 


48.0 


57.0 


10. 


7.0 


23.0 


II 46.76 


-12.45 


• • 


4-22.80 


I II 57.11 4- 6.95 




38 


a 


Virginis 


T. 




41.0 


43.5 


44.9 


51.2 


53.4 


55.3 


1.6 


3.3 


5.7 


17 53.32 


- 0.54 


4-22.81 


-f22.8o 


13 18 15.58; 0.00 




39 


a 


Bootis .... 


T. 




3.4 


6.1 


7.6 


14.2 


16.4 


18.4 


25.0 


26.6 


29.3 


9 16.33 


- 0.33 


4-22.79 


4-22.82 


14 9 38.82 4- 0,04 

I 


18 


40 




Sun I, S. . 


T. 


3 


46.9 


49-7 


51.3 


57.8 


0.1 


2.3 


8.7 


10.3 


12.9 


36 0.00 


— 0.61 


• « 


4-22.85 


15 36 22.24 • • 




41 




Sun II. N. . . . 


T. 


3 


5.3 


7.6 


9.2 


15.9 


18.0 


20.2 


26.8 


28.4 


31.2 


38 18.07 


— 0.61 


• ■ 


4-22.85 


15 38 40.31! . 




42 


a 


Ophiuchi . . . 


T. 


• 


14.0 


16.6 


18.0 


24.4 


26.6 


28.6 


34.9 


36.5 


39.0 


28 26.51 


— 0.38 


4-22.83 


4-22.88 


17 28 49.01 4- 0.06 




43 


d 


Ursae Minoris . 


T. 


« 


31.5 


14.0 


39- 


48.0 


24.0 


58.0 


32.0 


7.0 


a • 


13 57.84 


+ 4.58 


« • 


-h22.90 


18 14 25.324- 0.46 




44 


a 


Lyras .... 


T. 


• 


49.7 


53.0 


54.9 


2.8 


5.5 


8.1 


15.9 


17.8 


21. 1 


32 5.42 


— 0.18 


4-22.94 


4-22.91 


18 32 28.15 4- 0.03 




45 




Moon I, S. . . 


T. 


3 


57.0 


59.8 


1.3 


8.1 


10.3 


12.6 


19.3 


21.0 


23.7 


21 10.34 


— 0.62 


, 


-f 22.92 


19 21 32.64 4-66.23 




46 




Jupiter I, S. . . 


T. 


• 


12.0 


14.7 


16.2 


• • 


• • 


■ • 


32.7 


34.2 


36.7 


18 24.42 


— 0.46 




-h23.02 


18 46.96 . . 




47 




Jupiter II, N. . . 


T. 


• 


• • 


• • 


23.4 


25.5 


27-5 


29.4 


31.6 


• ■ 


• • 


18 27.49 


— 0.46 




4-23.02 


18 50.05 . . 




48 


K 


Draconis, S. P. . 


T. 


• 


2.9 


55.1 


50.7 


32.0 


25.9 


20.1 


1.5 


57.0 


49.0 


27 26.02 


- 1. 16 




4-23.02 


12 27 47.881— 0,04 




49 


a 


Cassiopeac . . . 


T. 


• 


21.4 


26.1 


28.5 


39.5 


43.4 


46.9 


57.8 


0.5 


5.1 


32 43.24 


+ 0.03 




4-23.02 


33 6.29 — 0.03 



8 . 1 1 . 42. Seem one rev. wrong. 
8.45.48. Bisections at sets B and D. 

17. Doubtful which wires were used for bisection. 

30. Wire A used. 



OBSERVATIONS MTITH THE TRANSIT CIRCLE. 



129 



, J I Circle 
g Division. 

Z I 



I 
3 

3 
4 

5 



/ 
8 



9 

10 

II 

12 

13 
14 

i6 

17 
iS 

19 

20 
21 
(22 

24 

25 

26 

27 
2S 

29 

3t> 
31 
32 

33 



37 
38 
39 

40 

41 
42 
43 

44 

45 
46 

47 
43 

49 



MICROSCOPE MICROMS. 



TELESCOPE MICROMETER. 



I. 




6 

28 

8 
359 48 



33 

351 

15 



r. 



18 58 

50 16 

324 8 

57 30 
56 58 
26 10 

47 6 
38 o 

155 30 
38 22 
38 22 

289 24 

343 2 

33 36 

34 28 
•33 52 



155 44 
30 20 
16 o 
30 36 

332 2 

295 8 

32 34 

351 28 

307 46 

19 6 



34 


18 48 


10.8 


35 


189 36 


II. 2 


36 


27 38 


10.5 



307 28 
49 18 

18 58 

58 30 

57 58 

26 10 

312 14 

o 10 

59 18 
38 26 
38 26 

289 24 

343 2 



II. 7 

9-5 

5.5 
10. o 



10.6 

10.5 

6.6 

5.3 
6.2 

15.0 

10 8.7 

10 8.3 

8.2 
10.8 
10.8 

6.3 
6.7 

10.7 
14.2 

12.5 



3.8 
8.1 

7.5 
II. 6 

9.5 

9.7 

9.8 

8.0 
13.4 
13.2 



9.2 
14.0 
12.4 

8.5 
5.0 

12.6 

4.3 
10. o 

12. S 

II. 4 
II. 4 

5.5 
10.4 



7.7 
6.2 

2.5 
4.6 



8.1 
6.6 

3.7 

2.0 

2.9 

10.4 

5.5 
4.1 

5.5 
6.8 

6.8 

4-5 
4.0 

7.5 
10.6 

9.0 



i.o 

5.5 
3.3 
7.7 
6.8 

6.8 

6.5 
5.0 

9.8 

10.3 

7.4 
10.4 

6.8 

7.8 

10. 1 

9.2 

3.8 
1.6 
9.2 

2.4 
6.3 

9.1 

8.2 
8.2 
3.6 

7-5 



III. 



3.4 

2.7 
28.5 

4.5 



5.6 

3.5 
2.6 

29.0 
0.1 
6.1 
2.0 
0.8 

2.6 

3.3 

3.3 
2.3 

0.4 

3.1 

4.8 
3.8 



26.5 
0.6 

29.3 
2.8 

4.4 

5.0 
1.6 

I.I 

5.5 

5.4 

3.5 
5.8 

2.4 

5.5 
6.6 

6.2 

1.4 

27.5 

5-4 
0.6 

4.3 

5.1 
4.4 
4.4 
0.6 

4.3 



IV. 



5.0 

3.8 

29.5 

6.3 



8.0 
4.6 
5.6 

1-5 
2.1 

9.5 
2.6 

2.2 

2.3 

5.1 

5.1 
4.6 

3.0 

5.4 
9-3 
7.0 



29.6 
4.6 
3.6 
7.0 
6.6 

7.6 

5.3 

5.4 

8.7 
9.0 

6.4 
7.0 
5.6 

8.2 

8.5 
7.2 

1.5 
28.4 

7.6 

2.0 

5.8 

6.8 

5.9 

5.9 

4.3 
6.1 



Rev. 



28 

23 
25 
23 

26 
26 

19 

19 
20 

26 

26 

30 

23 

23 
20 

27 

28 

29 

25 
24 



27 
26 

27 
26 

24 

21 

33 

23 
22 

23 

21 
26 

25 

24 

27 
26 

23 

25 
26 

23 
25 

23 

24 
27 
27 

28 



I. 



150 
550 



764 



310 



288 



378 



366 



330 



310 



2. 



200 
610 

135 
360 



703 



422 
629 



482 
740 



042 
398 



210 

558 

321 
000 

550 



958 

254 
970 

170 



344 
648 

508 

080 

080 
214 
236 

628 

• • 

440 
358 



334 
431 
136 

224 
190 



332 



3. 



912 
075 

442 



668 



382 



210 



339 



4. 



980 
600 
112 
200 



622 
150 
262 



863 



610 



108 
234 
377 

130 

135 
568 



930 
160 
924 
170 
998 



631 

483 
426 



969 
968 
290 

740 
620 
301 



200 

193 

430 
042 

216 

• • 

190 
310 



5. 



950 
630 



180 



862 



365 
928 



051 



160 



333 



628 



141 
370 



07 



C C2 



C o 



«o 



3.7 
3.7 
3.7 
3-5 



3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
2.3 

2.3 

2.3 
2.3 
2.3 
2.3 
2.3 

2.3 
2.3 
2.3 



12.3 
12.3 
12.3 
12.3 
12.3 

12.3 
12.3 
12.3 
12.3 
12.3 

12.3 
12.3 
12.3 

II. 6 
II. 6 
II. 6 

II. 6 
II. 6 
II. 6 
II. 6 
II. 6 

II. 6 

IT. I 

II. I 
II. I 
II. I 



Apparent 
Zenith Dis- 
tance, South. 



33 8 48.1 

351 31 58.5 
15 II 38.8 

359 52 2.0 



19 I 8.4 

50 19 16.6 

324 13 3-8 



E 
o 
"> .J 



C/3 



57 35 
57 2 
26 13 

47 9 
38 2 



2.0 
40.6 

9.8 
10.2 

13.4 



155 34 6.7 
38 26 0.3 
38 26 48.2 

289 27 2.4 

343 5 44.5 

33 38 29.3 

34 31 29.9 

33 55 39-3 



155 46 55.3 
30 23 17.5 
16 2 52.2 
30 39 155 

332 5 34.4 

295 12 33.3 

32 37 590 
351 31 58.0 

307 50 I0.5 

19 10 1.4 

18 52 34.4 
189 39 15.0 

27 41 30.3 

307 31 37.1 
49 20 48.8 

19 I 10.3 

58 34 2.3 

58 I 35-21 

26 13 12.0 

312 18 2.3 

O 13 32.2; 



59 21 58.8, 

38 29 44.4 
38 28 58.3 

289 27 0.6; 
343 4 41.2' 



740 
730 



668 
640 



610 

558 
631 

639 
670 



683 



690 

• • 

698 



700 

703 

721 



723 
723 

590 
589 

585 



544 
544 
543 



554 

• • 

641 



Refraction, 



-I- 



+ 












+ 



39-6 
9.1 

16.5 
o.i 



+ 20.6 

+ I II. 8 

- 42.7 



I 
I 



32.5 
30.6 

28.6 

3.7 
46.4 



27.1 

47-4 

47.4 

2 48.1 

18.2 

39-9 
41.2 

40.3 



27.0 

35-2 

17.3 
35.6 

31.8 



— 2 



— I 



7.1 

38.5 
9.0 

17.7 
21.0 

20.7 
10.3 

31.7 



— I l6.2 
+ 1 8.1 
-h 20.2 

+ I 34-6 
-f I 32.6 
-f 28.5 

— I 3.6 
4- 0.2 






1 37.8 
47.1 
47.1 

2 46.5 
18.0 



Apparent N. 
P. Distance. 



M 

s 

• 


m 

Vi 

C 


c 





c« 




s 


u 


0) 


$^ 


1^ 


u 







io 



n 



84 15 48.9 
42 38 10.6 

66 18 16.5 
50 58 23.1 



70 7 50.2 
loi 26 49.6 



— 18.0 
+ 0.9 
+ 2.5 
4- 2.5 



0.0 

- 8.5 



15 18 42.3 4-15.9 



108 42 55.7 
108 10 32.4 

77 19 59.6 
98 16 35.1 
89 9 21.0 

75 32 41.6 
81 33 8.9 
89 33 56.8 
340 30 35-1 
34 II 47.5 

84 45 30.4 

85 38 32.3 
85 2 40.8 



75 19 52.9 
81 30 13.9 

67 9 30.7 

81 46 12.3 

23 II 23.8 

346 16 47.4 

83 42 58.7 

42 38 10.2 

358 55 14.0 

70 16 43.6 

69 59 1^.3 
41 26 55.9 
78 45 23.2 

358 36 42.1 
100 28 18. 1 

70 7 51.7 

109 41 58.1 
109 9 29.0 

77 20 1.7 
3 23 19.9 

51 19 53.6 

no 29 57.8 

89 36 52.7 
89 36 6.6 

340 30 35.3 
34 10 44.4 



- 7.5 

- 7.5 

- 17.0 

- 1.3 
-I9'7 

+ 1.5 

- 1.3 

- 1.3 
4- 2.1 
4- 0.6 

—22.4 

- 0.2 

—22.5 



4- 1.2 

4- 0.7 

- I.I 

- 0.6 
4- 1.2 

4- 1.4 

- 2.0 
4- 0.7 

- 1.6 
4- 9.1 

4- 9-2 

- 2.3 

4- 1.0 

- 1.4 

- 1.6 

4- 0.5 

- 7.6 

- 7.6 

-15.5 

- 2.6 

- 0.5 



- 1.3 

- 1.3 
4- 3.6 

- 1.8 



No. 


Barom. 


External 
Therm. 


Attaehed 
Therm. 


For summary of the elementi of reduction see page 3. 


No. 


MOON'S— 


in. 


• 
• 





Parallax. 


Semi-diam. 






45 


/ // 
- 47 17.4 


- 15 3.0 



17 



180 



0B8EBTATI0NS WITH THE TRANSIT CIRCLE. 



DATE. 




SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



III. 



1868. 
Nov. 18 



19 



20 



21 



22 



I 

2 

3 
4 
5 

6 

7 
8 

9 
10 



Neptune 
e Piscium 

Polaris . 
fl Piscium, (R.) . 
o Piscium 



/? Arietis. (R.) . . 

a Arietis .... 

f» Ceti .... 

Anonymous 

5 UrsaB Min., S. P. . 

i II j Undina 

' 12 I a Persei .... 

13 I W. Ill, 400 . . 

14 I 6 Persei .... 

15 I 7 Tauri .... 

A UrsaMinoris, S.P. 

15 Argus .... 

C Praesepe 

K Praesepe 

i Ursse Majoris, (R.) 



ii6 

17 
18 

19 
20 



21 
22 



K 

a 



23 ; d 
24 



25 
26 

27 

28 

29 

30 

31 
32 

33 
34 

35 
36 

37 
38 

39 
40 

41 
42 

43 
44 
45 

46 

47 
48 

49 
50 



K 

a 




a 



Cancri . 
Cephei, S. P. 
Ursae Majoris 
Polaris, S. P. 

Sun I, S. 
Sun II, N. . 
Moon I, S. . 
Delphini 
Anonymous 

Pegasi, (R.) 

iupiter I, S. 
upiter II, N. 
>raconis, S. P 
Cassiopeae, (R 

Ceti . 
Polaris 
Piscium 
Arietis, (R.) 
Arietis, (R.) 
Ceti 



) 



Polaris, S. P. 
a Virginis 

Moon I, S. 
a Aquarii 
Polaris 



r 
<» 



Polaris, S. P. 
Virginis 
Bootis . 
Mercury II, S. 
Mercury, N. C 



T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 
T. 
T. 

T. 
T. 
T. 

N. 

N. 
N. 
N. 
N. 
H. 

N. 

N. 
N. 

N. 
N. 

N. 
N. 
N. 
N. 
N. 
N. 



' T. 

! T. 

T. 
T. 
T. 

N. 
N, 
N. 
N. 

N. 



53 
12. 

35 

,53-155.757. 
153.8 56.4.57. 



IV. 



V. 



59.3 
14.8 



3 48.7 
.11.8 

28.7 

13.5 
14.3 

44.3 
,18.4 
!i3.4 
'56.3 

' 6.3 



22.0 

J39.2 

30.9 

2.8 
30.6 

49.3 



;56.8 
!i5.o 

146.6 

20.2 
20.0 

I 

56.1 

6.9 

2.7 



51.3 
14.5 



©'56. 

3.7 
4.2 



53-0'59.5 
16. 1 23.1 



1.1 
16.7 
22.0 

5.9 
6.1 



1.8 
25.2 
41. 



31. 3132. 7139.0 
16.3118.2124.6126.7 



043 



3-1 



56. 230. 5121. 8 



46.748.5 
22.024.3 

16.0I17.5 



4.2 

5 
3 

2 

3 
3 
3 
3 



59-9 
9.0 



24.8 
42.2 

57.3 
34.5 

5.5 
25.0 

56.2 



59.6 
17.8 

49.3 
22.7 

22.5 
57.4 

• • 

9.4 

54.8 



1.7 
10.5 



26.4 
43-6 
59-5 
36.4 

7.0 
22.1 

0.6 
26.0 



4 34.5 
3 47.0, 
3 !53.i!55.6 
2.4 48.2 
3 ]ii-2 
3 I28.0 



55.0 
26.0 



37.2 
34.5 



51.0 
14.0 
30.6 



57.7 
28.6 



46.0132.0 



3 I . . 

4 I . • 

3 i . . 

4 151. 6 

3 . • 



30.3 
55.3 
54.2 



I. 

19- 
50. 

24. 
24. 

I. 
12 
II 
50. 

• 

38. 
32. 

57. 
52. 

15. 
32. 



54.656.7 



23.5125.6 



II. 2 



14.4 



17.419-5 



50.0 
33.0 
50.2 

1.5 
46.2 



5.01 

35-2 

52.2 

3.8 

49.2 



13. 315. 4 



8.7 

19.3 

3.0 

7.9 
25.8 

57.7 
30.5 
30.2 



3.8 
I 14. 1 
o 

732.0 
. 42.5 



35.3 

• • 

3.6 
590 
22.1 

38.3 



35.013.0 
52.1 



59-2 
30.1 
31.0 

33.0 
32.3 
57.5 
55.7 



5.7 
36.2 



4.4 

25-5 
37-5 

lo.o 
27.9 

59-9 
32.6 

32.3 

6.0 
16. 1 

• ■ 

25.5 
46.0 

37.5 
13.0 

5.6 

1.2 

24.4 

40.5 

48.0 
54.0 

7.8 
38.3 



VI. 



VII. 



3.0 

18.8 

45.0 

8.1 

8.1 



9 
22 

II 

14 

14 



3.910, 

27.3.33. 
1149. 

29.2I35. 

13.047. 



4 

9 
o 

4 



VIII 



IX. 



Mean wire. Inst. 



Clock 
.appar'nt. 



II. 1 13-4 
24.4,27.0 



15-8 



18.7 



16. 018. 3 



58.5 



4.9 



33-7.37. o|39. 949-7 
27-533.6 
17.4.26.4 



21.828.4 



16. 

37- 

54. 

6. 

52. 

17. 
59. 
31. 
17 



31.0 

44.3 
0.9 

10.2 
1.7 



,4'23.6 
947.0 
550.0 

,050.0 



12.0 
35.6 
50.7 

37.7 
41.2 

6.5 

51.8 

35.3 
28.5 

30.0 



14.8 

38.4 

53.4 
40.6 

30.4 

9.1 

55.8 

37-9 
32.2 

32.9 



46. 1 148. 6 
2.5 4.9 

II. 914. 7 
4.0 7-7 



II. 818. 6 

30. 
2. 

34. 
34. 

8. 
18. 



o 

,0 

7 

3 



36.6 
8.7 

40.9 
40.4 



19. 
49 



10.2 
220.3 

27.3 

1.4 

56.8 



39.746.0 



7. 

3- 
26. 

42. 



13.9 
10.6 
33.2 

548.7 



25.2 

43.5 
54.4 



24.0 
56.2 



9-545.0 
34436. 4 



59.6 
2.1 



1.8 
4.3 



9-9 
40. 



59.0 
0.3 

16.4 

-5 



3146 



22.0 

38.4 

3-9 

6.3 



56.5 

42.5 

8.3 
12.6 



20.6 

38.3 
10.3 

42.5 
42.0 

14.2 

• • 

28.9 
56.8 
59-8 

47.7 

• • 

15.4 
II-5 
35-0 

50.3 



1.9 

18. 1 
48.0 



44.2 

9.9 
14.2 



27.6 

38.3 
2.1 



22.8 
41.0 
13-0 
45.0 

44-4 
16. 1 

• • 

31-4 
49.2 

4.2 
50.4 

• • 

17.8 

14-3 
37.7 
52.8 



4.4 

20.7 
50.7 



46.6 
12.6 
16.7 



Clock 
adopted, 



m. s. s. s. 

57 1. 21 — 0.44 . . 

I 14.68 — 0.44 . . 
II 21.92 -hii.71, . . 
24 5,86— 0.301 . . 
38 6.12 — 0.42 -H 23. 04 



47 I. 71 
59 25.10 
5 41.01 
15 26.97 
27 21.94 



— 0.25- 



3 56. 

14 36. 
23 25. 
33 14. 
39 19. 

55 4. 

I 35. 
29 52. 
32 I. 

49 49- 

o 15. 

15 4. 
22 25. 

II 38. 



64- 
96J- 

59- 

22.- 

53- 



0.31+23.03 
0.42I+23.04 
0.291 

1.57 • • 



0.45 
0.06 

0.43 
0.09 

0.31 



221 — 15.88 
29— 0.65 
21'— 0.33 
62 — 0.33 
21 -h 0.05 

j 
33 - 0.40 
39— 0.91 
43 -+- 0.46; 
38-13.521 



-1-23. 12 



-f-23.22 



+ 23.15 



40 9.92— 0.59 
42 27.971- 0.59 
13 59.82!- 0.59 

26 32.59!- 0.37 
2 32.26— 0.44 

6 6.00— 0.28 
18 16.17 — 0.44 
18 19.15 — 0.44 

27 25.87— 1.23 
32 42.45 + 0.19 

36 37.46- 0.58 

II ii.95'h-I2.8o 
38 5.51!- 0.39 
47 1.23- 0.24 
59 24.40— 0.22 
5 40.42— 0.3S 

II 47.481 — 19.20 
17 52.03 — 0.69 

54 7.83- 0.73 
58 38.30— 0.60 
II 10.33 -I-18.22 



+23.52 



+23.53 
4-23.62 

+23.59 



s. 
+23.03 
+23.03 
+23.04 
+23.04 
+23.05 

+23.05 
+23.05 
+23.05 
-f-23.06 
1+23.06 

+33.08 

1+23.08 
+23.08 
+23.09 
+23.09 

+23.17 

+23.17 

+23.18 

+23.18 
+23.19 

+23.19 

+23.20 i 
+23.20 

+ 23.34 

+23.39 

+23.39 

+23.48 

+ 23.49 
+23.59 

+23.56 
+23.56 
+23.56 

+23.57 
+ 23.57 

+23-57 
+23.58 

+23.59 

+23.59 
+23.60 

+23.60 



I 



. . 1+24.27 
+24.32 1+24.27 



II 42.88 

27 34.38I 

47 59.64 
41 4.19 



19.95 
0.56 

0.37 

0.70 



+24.41 



+25.29 

+25.28 



+24.41 

+24.45 
+24.51 



I 



'+25.28 
+25.29 
+25.30 

+25.31 



m . 

3 « 

S 

Apparent R., ^'^ 

W W 

— ■ ^ 



Ascension. 



h. m. s. s. 

57 23.80 . . 

1 1 37.27+ 3.22 
I II 56.67 + 6.7^ 
I 24 28.60 -r 0.03 
I 38 28.75 — 0.03 

I 47 24.51 - 0.10 

1 59 47.84+ 0.03 

2 6 3.64 ■+■ 0.04 
2 15 49-74 -r 3 14 

14 27 43.43+ o.ii 

2 4 19.27 . . 

3 14 59- 98+ 0.22 
3 23 48.24+ 2.96 
3 33 37.22+ 0.14 
3 39 42.31 — 0.02 



19 55 11.51- 1.92 
8 I 57. &i — 0.07 
8 30 15.06+ 4.27 
8 32 24.47 + 4 2q 

8 50 12.45 + 0.16 

9 o 38.i2»+ 0.04 
21 15 26.68 — 0.05 

9 22 49.09+ 0.56 
I II 48.20— 1.44 

15 40 32.72 

15 42 50.77 . . 

20 14 22.71+65.10 
20 26 55.711— 0.02 
23 « 55.41;+ 3.Su 

o 6 29.28 + o.oi 
o 18 39.29 . . 
o 18 42.27; . . 
12 27 48.21 + 0.24 
o 33 6.21 — 0.09 



o 

I 
I 
I 

I 
2 



37 0.45 
II 48.33 

38 28.71 
47 24.58 
59 47.78 

6 3.64 



0.07 
1.03 
0.07 
0.03 
0.03 
0.04 



I II 52.55+ 407 
13 18 15.61 — 0.04 

21 54 31.51 -(62.90 

21 59 2.15 + 0.03 

I II 53.06+ 4.Sq 

I II 48.21 + 0.9S 
13 27 59.11 0.00 

13 48 24.57— 0.01 

14 41 28.80— 0.22 



I. II. Wire A used. 
10.27.33.43. Bisections at sets B and D. 

9. Reduced on the supposition that the micrometer reading was five revs, too great. 



OBSERVATIONS WITH THE TRANSIT CIRCLE. 



131 



I b 

3 



Circle 
Division. 



I 

2 

3 
4 
5 

6 

7 

8 

9 

lO 

II 

12 

13 
M 

15 I 

i6 ' 

17 ' 
i8 , 

19 

20 

21 

22 ' 

23 , 
24 

25 

26 

27 
2S 
29 

30 

3t 

32 . 

33 ' 
34 

35 
36 
37 I 
38 

40 ' 

41 

42 

43 
44 

45 

46 

47 

48 

49 
50 



34 28 

33 53 

3x0 14 

155 44 
30 20 



161 
16 



o 



30 36 

13 34 
295 8 

33 38 
349 26 

33 
351 

15 



4 

28 

8 



MICROSCOPE MICROMS. 



307 46 
62 44 
19 6 
18 48 

189 36 

27 38 
280 58 
328 26 
307 28 

58 44 
58 12 

57 59-5 
27 58 

38 o 

155 30 

38 26 

38 26 

289 24 

196 52 

57 33 

30 20 
161 14 
163 54 

30 36 

307 28 



52 58 



307 28 

38 44 
19 46 
52 6 
52 6 



I. 



r. 



II 
10 



13.1 

12.8 

7.4 
9.3 
7.7 

3.1 

7.1 

13.5 
7.0 

9.2 

II. 5 

II-3 

13.4 

12.5 
14.6 

7.7 

9.4 

10.8 

11.4 
9.6 

8.0 
2.6 
2.0 
0.2 

3.2 

4.4 

3.5 
2.1 

2.5 

4.1 

5.5 

5.5 
1.2 

4.5 
6.5 

7.8 
5.5 

8.5 
9.8 

4.6 



17.9 



1.3 

2.3 
10. 1 

7.5 
7.5 



II. 


III. 


II 


// 


10. 


4.5 


9.5 


3.5 


5.0 


2.4 


6.8 


1.8 


5.2 


0.0 


1.4 


27.1 


4.3 


0.3 


10.5 


5.6 


5.3 


0.5 


6.5 


4.6 


8.7 


3.0 


7.4 


4.8 


9.7 


4-4 


9.2 


5.8 


II. 


7.4 


5-4 


2.5 


6.4 


1.5 


7.7 


3.4 


7.4 


3-5 


9.0 


5.0 


4.7 


0.0 


0.4 


27.9 


28. 5 


28.0 


27.9 


26.5 


0.0 


27.0 


1.3 


28.4 


0.5 


25.5 


27.6 


24.6 


28.4 


25-4 


0.7 


27.0 


I.I 


27.9 


I.I 


27.9 


29.8 


27.0 


4.8 


0.2 


3.2 


28.4 


3.9 


29.4 


3.5 


29.4 


6.2 


2.1 


5.5 


1.2 


1.7 


29.0 


14- 5 


10. 1 


27.8 


26.8 


27.0 


25.3 


6.3 


4.2 


3.8 


I.O 


3.8 


I.O 



IV. 



II 

8.8 

6.6 

4-4 

3.7 
2.6 

28.5 
1.8 
8.1 

2.4 

7.0 

7.1 
6.8 

8.2 

8.2 

10. o 

4.5 
5.6 
6.6 

6.4 

5.3 

3.4 

I.O 

28.6 
28.2 

29.6 
I.I 
28.7 
28.1 
26.5 

27.5 
29.5 
29.5 
29.1 
0.1 

1.6 

2.4 
29.7 

2.7 
3.9 

3.8 



11.3 



TELESCOPE MICROMETER. 



29.6 

27.6 

6.0 

3.4 
3.4 



Rev. 



28 
24 
23 

27 

26 

29 
27 

25 

24 

21 

23 
21 

20 

23 
24 

22 
26 

22 

20 
26 

25 
28 

22 
25 

24 

25 

25 
26 

30 

23 
22 

25 

27 
26 

28 

26 
28 
26 
26 

24 



23 



I. 



25 

23 

24 
21 

21 



136 



609 



2. 



211 

272 



370 
385 



754 



900 



400 

915 

■ • 

820 



090 



462 



090 
542 
403 

050 
700 
830 
264 
190 

820 
628 
170 
274 
626 

684 
228 

590 
864 

188 

430 

144 

528 

221 

358 



3. 



4. 



075 



714 



429 

311 
607 

300 
731 



878 



315 
894 

• • 

830 
635 



060 



223 

84i 



225 



250 
905 

« ■ 

800 

• • 

224 

890 

920 



108 



474 
194 
082 

530 
290 

970 

633 
798 
068 
180 

682 

450 ! 
079 

244 

580 

708 
038 
058 
802 
no 

274 
860 

476 

262 



418 
280 
002 



528 



221 



612 

521 
230 

513 
105 



520 

745 
169 



154 

774 

• • 

838 
942 



063 

350 
112 



715 



622 

508 
180 

• • 

100 



429 

754 
072 



174 

• • 

770 

» • 

788 



o o 



096 
392 

• • 

238 



It 

II. 
II. 
II. 
II. 
II. 

II. 
II. 
II. 
II. 
II. 

II. 
II. 
II. 
II. 
II. 

II. 
II. 
II. 
II. 
II. 

II. 
II. 
II. 
II. 

II. 
II. 
II. 
II. 
II. 

II. 
II. 
II. 
II. 
II. 

II. 

II. 
II. 
II. 
II. 



II. 2 



II. 2 



Apparent 
Zenith Dis- 
tance, South. 



13.5 
13.5 
13-5 
13.5 
13.5 



o / // 

34 23 II. o 

33 55 43.0 
310 18 4.2 

155 46 55.1 
30 23 15.0 

161 16 37.9 
16 2 55.4 
30 39 17.6 

13 39 4.8 
295 12 30.5 

33 44 25.1 
349 30 25.1 

33 8 45.0 
351 31 57.4 

15 II 34.9 

307 50 10. I 
62 47 16.2 

19 10 5.7 

18 52 36.0 

189 39 14.3 

27 41 30.0 
281 o 52.4 
328 30 19.2 
307 31 38.1 

58 47 51.7 



58 
58 
28 

38 



15 27.8 

2 53.4 
22.5 
16.7 



I 
2 



155 34 7.7 

38 30 14.6 

38 29 30.7 

289 36 57.4 

196 55 18.6 

57 34 37.8 

30 23 17.4 
161 16 39.8 
163 57 6.8 

30 40 16.2 

307 31 39-6 



I 

S 



I 



307 31 41.5 
38 48 6.9 
19 49 48.0 
52 10 33.5 
52 10 27.1 



648 



663 
667 



674 



707 



717 
667 



570 
554 

611 
629 



628 



630 



633 
664 



53 I 44.1; 663 
663 



718 
698 
688 



Refraction 



— I 






-h 



-h 



-h 



II 

40.6 
39.9 

10. o 
26.7 

34.9 



20.2 

17. 1 
35.3 
14.5 

2 6.1 

39.9 

II. I 

39.0 

9.0 
16.2 



17.4 
56.7 

20.9 
20.6 
10.2 



+ 31.6 

- 5 1.2 

- 36.9 

- I 17.6 



— 2 



36.0 
34.0 

32.9 

30.9 
46.0 

26.9 
47.0 
47.0 

45.9 
18.0 



-h I 32.9 



34.7 
20.0 

17.0 
35.1 



- I 17-5 



-h I 19. 1 



- I 18.5 

H- 48.5 

-f 21.7 

+ I 17.1 

-h I 17. 1 



Apparent N. 
P. Distance. 



85 30 12 

85 2 44 

I 23 15 

75 20 52 

81 30 II 

69 56 3 

67 9 33 
81 46 14 

64 45 40 

346 16 45 

84 51 26 

40 36 35 
84 15 45 
42 38 9 

66 18 12 

358 55 13 

113 55 34 

70 16 47 

69 59 17 

41 26 56 

78 48 22 
332 2 12 

19 36 3 

358 36 41 

109 55 48 
109 23 23 
109 10 47 

79 8 14 
89 9 23 

75 32 40 
89 37 22 

89 36 38 
340 30 32 

34 10 44 
108 42 31 

81 30 13 
69 50 I 

67 9 31 
81 47 12 



8 
I 

4 
8 

I 

5 

7 
I 

5 
6 

2 
2 
2 
6 

3 

9 
I 

8 

8 

7 

8 

4 
5 
7 

9 
o 

5 

6 



4 

8 

9 

7 
6 



358 36 43.3 



104 9 24.4 



358 36 44.2 

89 55 16.6 

70 56 30.9 

103 18 II. 8 

103 18 5.4 



tfl 


• 




in 

C 


B 





d 


•wm 




<i* 


m-^ 


u 


V 


V 


u 


Im 


(A 


u 







SO 1 




II 



j— 0.2 . 

1-22.7, 

- 0.9! 

+ I.I I 

— 2.2 



H- I.O 
-+- 2.2 
-f I.I 

- 19.2 : 
-+- i.o! 

- 2.3 
+ 2.5 

- 18.3 
+ 0.9 

- 1.5 

- 1-4 
-H 0.4 

-h 8.6 

-h 8.7 

- 1.8 

0.0 i 
-f 2.7 
4- 0.2 
- 2.2 

- 7.6 

- 7.6 

- 1.2 

- 20.0 

-H 0.3 

- 1.3 

- 1.3 
+ 1.3 

- 1.4 

- 0.1 

0.0 

- 1.0 

- 0.1 

- 0.5 

- 1.2 



1.0 

0.7 
0.2 
6.6 
6.6 



No. ! Barom. 



in. 



External 
Therm. 



Attached 
Therm. 



No. 



For summary of the elements of reduction see page 3. 



27 
43 



MOON'S— 



Parallax. 



Semi-diam. 



It 



46 14.6 
43 II. 5 



II 



- 14 55.6 

- 14 48.7 



132 



OBSEBVATIONS WITH THE TRANSIT CIRCLE. 



DATE. 



1868. 
Nov. 23 



24 



26 






I 

2 

3 
4 
5 

6 

7 
8 

9 
10 

II 
12 

13 
14 
15 

16 

17 
18 

19 
20 

21 
22 
23 

24 

25 

26 
27 

28 

29 
30 

31 
32 

33 

34 

35 
36 

37 
38 

39 
40 

41 

42 

43 

44 

45 
46 

47 

48 

49 
50 



OBJECT. 



Sun I, N. . 
Sun II, S. . 
a LyraB 

Anonymous 
Moon I, S. 



J 



upiter I, S. 

upiter II, N. 
CassiopesB 
Piscium 
Neptune 




I 



Piscium 

Polaris 

Polaris 

Piscium 

Cassiopeae 



5 Ursas Minoris, S. P. 

/? Ursae Minoris, S. P. 

48 Cephei .... 

a Persei .... 

}' Ursae Minoris, S. P. 

a Persei . 

rf Tauri 

A Ursae Minoris, S. P. 

D Praesepe 

G Prasepe . 

K Cancri . 

o Cephei, S. P. 

d Ursae Majoris 

o Pegasi , 

Anonymous 
d Piscium 

Anonymous 

Anonymous 

Polaris . 

o Piscium 

/J Arietis . 
Anonymous 
Weisse III, 145 

Anonymous 
7' Eridani 
e Tauri . 

Anonymous 



Moon, S. . 

i Cassiopeae . 

5 Ursae Minoris, 
y Ceti 

(3 Ursae Minoris, 

C Arietis . 

6 Persei . 
n Tauri . 



S.P. 
S.P. 



t 

4) 
M 

o 



N. 
N. 
N. 
F. 

N. 

N. 

N. 
N. 
N. 
N. 

N. 

F. 
N. 

F. 
F. 

F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 

H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 
H. 

H. 
H. 
H. 
H. 



F. 
F. 
F. 
F. 
F. 

F. 
F. 
F. 



^ 
S 

^ 



2 
2 

4 
2.4 

2.1 

I 

2 
2 
2 
2 

2 

2 



3 
3 
3 



3 

2 

3 

2 

2 

2 
2 
2 

2 
2 

2 
2 
2 
2 



SECONDS OF TRANSITS OVER WIRES. 



CORRECTIONS. 



I. 



II. 



III. IV. 



44.747.3 



V. VI. VII. 



VII] 



46.3 
55.3 



57.6 
50.8 

56.8 



48.7155.4,57.61 O.Oj 

i4.6i6.8|i9.o'2i.ii 



6.2 8.0 



38.741.3 



0.2 

54.x 



2.9 
56.1 

i.oj 3.2 



18.8 
31.2 

• • 

O.I 

51.5 



23.4 



42.6 
50.0 
26.1 



33.935.5 
34.6,36.5 



2.5 

25.0 



4.1 

22.0 
14.0 

54.055.5 
44.2 



• . • 



10.6 

• • 

15.6 

• • 

53.7 

3-9 



24.2 

• • 

19. 1 



37.3 
52.9 
7.4 
21.5 
41.8 



57.459.5 
6.5' 8.2 

. . I34.0 
3-9 6.6 
3.8 6.0 



0.6' 2.9 
29.123.5 



36.2,38.940.4 



4.6 
20.5 



46.3 
41.8 

• • 

19.8 



48.850.5 
44. 3145.8 
52.955.0 



22.4 



23.8 



51.654 

46.7|49 
11.213 



590 



. 19.0 
.155.6 
.451.0 
.9115.8 



1.5 



23.425. 
18.320. 



20.6 
13.3 



10.6 
52.3 



52.1 
2.3 



23 
16 



.4 

.4 



59.7 
54.9 



55.6 
5.1 



3.2 

27.4 
22.5 
25.0 
18.0 



52.1 
36.8 
41.6 
38.6 



10.3 

• • 

40.0 

1.7 
49.0 

28.1 

44.7 
16.2 

30.4 
34.7 

8.7 

15.0 

47.0 

8.6 

8.1 

10.9 
"3 



5.4 



25.6 

8.013.3 

2.2 



5.0 7.3 



54.2 



9.4 



59.2 
56.058.2 



40.8:44.355.1 
43.7I45.651.8 
40.642.746.7 



12.3 14.420.4 

. . 40.0 

4.0.26.0 



3.7 



5.8 



55.059.7 



19.7 

« • 

25.7 
34.3 



II. o 3.2 



34.9 
37.4 
27.922.1 



II. 6 
17.3 



14.5 
19.4 



1. 016.0 



10.5 



13. 1 



10. 312. 6 



13.0 
7.0 



15.0 
2.2 



46.849.051.0 
56.758.7' 0.6 



54.7 

56.3 
52.0 

• • 

58.1 
6.7 



52.1 

57.3 
29.9 

42.0 

2.0 

57.6 

22.6 

9.4 

33.8 
28.9 

31.5 
24.5 



54.0 

59.4 
31.8 



56.1 

1.5 

33.7 



54.0 
12.0 

5.1 



43.9 
46.7 



23.7 
26.1 

28.0 

17.0 

16.8 

21.5 



57.2 
6.9 

2.4 

5.6 

40.2 



27.2 
15.3 

■ • 

13.6 
0.7 

■ • 

58.0 

53.3 
48.3 

21.9 
13.6 



49.1 



IX. 



10.8 

29.9 
18.5 

10.7 

15. o> 

3.2 

• • 

2.3 
55.8 
51.0 

24.5 
29.0 

• • 

16. 1 



Mean wire. 



m. s. 

56 57.63 
59 16.80 

32 2.83 

7 58.39 
29 5.18 

17 50.95 
17 54.101 
32 40.62 

55 43.60 

56 38.61 



53. o| 



I 
II 
II 

38 



12.28 
2.72 

3.92 
3.77 



17 54.60 

27 19.86 

50 37.48 

3 25.62 

14 34.17 



Inst. 



s. 

— 0.78 

— 0.78 

— 0.13 

— 0.55 

— 0.63 

— 0.56 

— 0.56 
-I- 0.21 

— 0.49 

— 0.52 

— 0.51 
+ 19.01 
-4-19.01 

— 0.48 
+ 0.63 



2.38 
2.22 
1.69 



Clock 
appar'nt. 



Clock 
adopted 



-h 



+ 0.06 



26.1 29.8 
27.830.3 



18.8 
18.5 

23.0 



58.6 
8.3 

3.9 
7.0 

41.5 



21.4 
21.2! 

25.5 



20 28.25