464 An Account of the Measurement 
Observed Zenith Distances of Cap ell a. 
Point on the Limb, y° 40' South. 
Day of 
the 
month. 
Face of 
the arch, 
E.or W. 
Plumb- 
line. 
Observa- 
tion of 
the star.. 
Zenith distance 
in revolutions 
and parts. 
Zenith distance 
reduced. 
Barome- 
ter. 
Therm 
Above. 
0 meter. 
Below. 
rev. div. 
rev 
. div. 
0 ' rev. div. 
O / // 
Inches. 
0 
0 
Sept. 1 1 
E 
9 
47, 77 
8 
1 5*9 
6 25 1 33,87 
6 26 33,02 
28,8 
46,5 
50,5 
12 
E 
8 
45 >i 7 
7 
12,1 
33,°7 
32,22 
28,7 
38,5 
43 <5 
14 
W 
7 
4**57 
9 
9,1 
26,53 
25,67 
28,8 
53’5 
50,5 
1 6 
w 
9 
5 ** 5 ° 
10 
20,3 
27,80 
26,94 
28,9 
54 5 
56,5 
18 
E 
9 
2477 
7 
48,8 
34,97 
34,12 
28,9 
55 ,o 
58,0 
1 9 
W 
8 
10,88 
9 
38,0 
27,52 
26,66 
28,9 
50,0 
575 
20 
E 
8 
48,20 
7 
15,2 
33 ’°° 
3 2 ,iS 
28,8 
57,2 
59 - 1 
21 
W 
8 
16,97 
9 
4 5*5 
28,53 
27,67 
28,8 
54 ,o 
56,5 
22 
E 
9 
6 >9 3 
7 
34 ’° 
31,93 
31,08 
28,8 
58,0 
62,0 
2 3 
W 
8 
48 > 5 ° 
10 
16,2 
26,70 
25,84 
28,7 
60,5 
58,5 
z 5 
" E 
8 
53 » 4 ° 
7 
20,0 
33 , 3 ° 
3z,45 
29,0 
48,5 
48,5 
26 
W 
9 
49 ’ 5 2 
11 
1 8,6 
28,08 
27,22 
29,1 
55,o 
56,5 
Operations at the Royal Observatory with the Zenith Sector. 
April , 1802. 
Observed Zenith Distances of (3 Draconis. 
Point on the Limb , o° 55' North. 
April 16 
W 
9 
57,80 
6 
44,2 
0 55 3 !3, 6 ° 
0 58 10,92 
29,9 
40,0 
40,0 
2 3 
E 
8 
35,49 
1 1 
40,9 
5 , 4 i 
2,71 
30,1 
38,0 
38,0 
z 5 
W 
10 
7,84 
6 
53,o 
13,84 
11,16 
29,8 
44,o 
44,0 
26 
w 
9 
24,63 
6 
11,5 
*3**.3» 
10,45 
29,5 
42,0 
42,0 
Observed Zenith Distances of y Draconis. 
Point on the Limb, o° o' North. 
April 16 
W 
10 
2!,73 
8 
18,5 
002 3,23 
0 2 1,43 
29,9 
45,0 
*9 
W 
9 
9,40 
7 
4,1 
5,30 
350 
31 , » 
53 
22 
E 
8 
14,48 
10 
95 J 
1 54,02 
1 53,21 
29,9 
55 
2 3 
E 
9 
21,79 
10 
18,5 
55 , 7 i 
54,90 
30,1 
38 
25 
W 
9 
39,52 
7 
34,4 
2 5,12 
2 3 , 3 2 
29 
44 
