124 Mr. Herschei/s account of a series of observations 
Calculation of the observations of the 21st. 
3d Combination. Observations of Col. Bonne and 
M. Largeteau. 
j-h 37™ 2 5S'io 
17 47 32 -io 
18 7 40 *95 
18 57 43 '9° 
18 
B 
9 h 39 n, 24 s -6 
9 49 3 2 ’6 
10 9 38 -8 
io 59 33 -4 
Mean. 
Mean. 
7 35 'oi 
10 9 32 -35 
A — B - 
B' — C'— 
7 58 2 -66 
8 1 1 '45 
C"— Z" — 
8 614*11 
-7 5 6 4 8 '4° 
9 2 5 7i 
-3 -15 
— 0 -04 
+ 0 -04 
0 9 22 *57 
B' 
io h 34 m 4gs-6 
10 44 59 -4 
Mean. 
10 39 54-50 
B — B / — 
C- C" = 
IO h 26 nl 38 s -2 
10 36 47 -9 
Mean. 
10 31 43 -05 
— 30 22 *2 
+ 49 35 ‘3 
+ 19 13 -i 
Gain of mean on i 
Sid. T. - - ) 
3 -15 
Z" 
9 n 42 m 7s7 i7 h 38 m 56 s -io 
Mean. Mean. 
9 42 7 7 17 3 8 5 6 * 10 
Gain of B on meanT.— o *04 
of C - - 4* o *04 
Corrected difference of Longitudes. 
Calculation of the observations of the 22d. 
3d. Combination. Col. Bonne and M. Largeteau. 
i7 h 5i m i8 8, 7o 
18 1 15 -65 
18 11 21-70 
18 21 43 -6o 
18 31 31 - 8 o 
18 51 29-80 
7~ i ® 
9 h 49 m 2i-8 
9 59 l 7 
10 921-4 
10 19 41 -8 
IO 29 28 -2 
IO 49 23 -o 
Mean. 
Mean. 
18 18 
6 -88 
10 
16 
5 ‘53 
A- 
-B — 
8 
2 
1 '35 
B'— 
C'= 
8 
10 - 6 i 
8 
10 
1 1 -96 
C — 
Z'= 
-8 
0 
47-12 
9 
24 -84 
3 '4° 
0 -oi 
+ 
O -02 
0 
9 
21 -45 : 
B' r— 
9 h 44 m 5° s ‘2 
9 54 53 ’4 
10 15 8-4 
I O 24 48 -2 
10 34 58 -6 
10 54 47 -4 
11 4 48 -8 
A. ^ C' 
9 h 3 6 ”39 ,, 8 
9 4 6 4 2 -4 
10 6 57 . 
10 16 37 7 
10 26 47 -9 
10 46 37 -4 
10 56 37 -8 
C" r — 
9 h 32 m 8 s -9 
9 42 6-9 
9 5 2 8 *5 
10 29-7 
-Tv 
j Z* 
! 7 h 3 zm 53 8 ' 2 7 
*7 4 2 53 *3 6 
17 52 56 -56 
18 2 59 -28 
Mean. 
B — B' — 
C'— C" — 
Mean. 
10 16 42 -96 
— 8 48 • 1 
+ 2 9 34 ‘5 
Mean. 
9 47 8 ’5° 
Mean. 
17 47 55 -62 
Gain of B on M. T. — — o -oi 
Of C - - +0-02 
+ 20 46 -4 
rain of mean on 7 
Sid. T. - .J-- 3-40 
:= Corrected difference of Longitudes. 
