120 Mr. Herschei/s account of a series of observations 
Calculation of the -observations of the 21st. 
1st. Combination. All the observers jointly. 
h “ ' 
i 7 n 37 “ 23 s 'io 
1 7 47 3 z’i° 
18 7 40-95 
18 17 50-50 
18 37 4°75 
18 57 43-90 
\ " 
g h 59 m 24 s, 7 o 
9 49 3 2 7 ° 
10 9 38 .60 
10 19 26-40 
jo 39 33-20 
10 59 33 ' 3 ° 
9 h 54 m 5 o s - 4 o 
10 4 53 -io 
10 1451 -20 
10 34 49-60 
10 44 59 .40 
11 4 51 -8o 
9 h 46 “ 38 s -95 
9 5 6 4 1 ' 5 ° 
io 6 39- 8o 
io 26 38- 25 
10 36 47- 90 
10 56 41- 10 
9 h 42 m 7 s 7 

I7 h 38 in 56 s-io 
Mean. 
Mean. 
Mean. 
Mean. 
Mean. 
Mean. 
18 14 15-18 
10 16 ii -49 
10 26 32 -58 
O 
00 
to 
to 
v-n 
9 42 7 -7. 
17 38 56 -io 
A — B = 
7 5 8 3' 6 9 
B — B' = 
— 0 10 21 -09 
Gain of B on M. T. — + o-o 1 
B'- C'- 
8 u -33 
C'-C" = 
+ 0 36 13 ‘55 
C . 
• • — 0-03 
8 6 15 -02 
4-0 25 52-46 
C"— Z"= 
-7 56 48-40 
Gain of mean on 1 A . _ A 
Sid. Time. 
{ T JT 
9 26 -62 
J 
— 4‘54 
-j-O -OI 
—0 -03 
0 9 22.06 
— Corrected difference of Lo 
ngitudes. 
Calculation of the observations of the 22d. 
1st. Combination. All the observers jointly. . 
A 
.... R 
r " ^ 
. * a 1 
17 1 ' 3i m i2s-i5 
1 7 51 18-70 
18 1 15-65 
18 11 21-70 
18 21 43 -6o 
18 31 31 -8o 
18 51 29-80 
9 h 29 m i 8 S, 6 
9 49 21 '9 
9 59 l 7 ' l 
10 9217 
10 19 41 .7 
10 29 28 .4 
10 49 23 .0 
9 44 m 5 ° s, 5 ° 
9 54 53 - 5 ° 
10 4 53 -20 
1015 8 -6o 
10 24 48 -30 
10 34 58-70 
10 44 57 -6o 
10 54 47.70 
11 4 48 .80 
1 w 
gh,6 m 3Q s -80 
9 4 6 42-45 
9 5 6 4270 
10 6 57-85 
10 16 37-50 
10 26 48 .05 
10 36 47 -oo 
10 46 37 .15 
io 56 37 .90 
9 h 32“ 8 s -95 
9 42 6 -95 
9 52 8 -55 
1029 -90 
I 7 h 52 m 53 s .27 
1 7 42 53 - 3 6 
1 7 52 5 6 -56 
18 2 59.28 
Mean. 
Mean. 
Mean. 
Mean. 
Mean. 
Mean. 
18 11 24-77 
10 9 24-63 
10 24 54-10 
10 16 43 -36 
00 
Cn 
00 
17 47 55 -62 
A — B = 
8 2 0-14 
B _ B'= 
— 15 29-47 
Gain of B on M. T. +0 -oi 
B' — C' — 
8 10-74 
+ 29 34-78 
C . 
. . —0 -03 
8 10 io-88 
+ 14 5 ’ 3 1 
C"—Z"= 
-8 0 47 -04 
Gain of Mean on \ 
Sid. Time 
£ — * 
9 23 -84 
— 2-31 
-f 0 -oi 
— 3 °3 
0 9 21 -51 
r: Corrected difference of Lo 
ngitudes. 
