4 62 An Account of the Measurement 
Observed Zenith Distance of 10 < Cygni. 
Point on the Limb, o° 55' South. 
Day of 
the 
month. 
Face of 
the arch, 
E.orW. 
Plumb- 
line. 
Observa- 
tion of 
the star. 
Zenith distance 
ir. revolutions 
and parts. 
Zenith distance 
reduced. 
Barome- 
ter. 
Therm- 
Above. 
ameter. 
Below. 
Sept. 18 
E 
rev. div. 
S 19,17 
rev. div. 
.8 53,6 
0 ' rev. div. 
0 55 0 34,43 
O / // 
0 54 25,51 
Inches. 
28,8 
0 
64*5 
0 
67*5 
*9 
W 
9 37>65 
9 2,2 
35*45 
20,49 
28,8 
66,5 
72,0 
20 
E 
8 31,87 
9 7*5 
34> 6 3 
25*31 
28,8 
65,0 
67,0 
21 
W 
10 16,65 
9 35*3 
40*35 
19,58 
28,8 
65,2 
67,2 
22 
E 
8 51,59 
9 28,2 
3 5*6 1 
24*33 
28,8 
66,0 
66,0 
23 
W 
8 49,25 
8 10,5 
38*75 
21,19 
28,8 
65*5 
65*5 
2 4 
E 
8 22,08 
8 56,0 
3 3 -9 1 
26,02 
28,8 
59*0 
63,0 
2 5 
W 
9 45*9 2 
9 7*o 
38,92 
21,02 
29,0 
66, 5 
67,0 
26 
E 
W 
9 n -63 
9 46,4 
34*77 
25,17 
29,0 
59*o 
64,0 
27 
8 57,40 
8 13,4 
44*00 
I 9*93 
29,0 
52,0 
55*5 
28 
£ 
8 54,83 
9 3i*i 
35* z 7 
24,67 
29,0 
60,0 
62,0 
29 
W 
9 52,90 
9 12,0 
40,90 
I 9*°3 
29,0 
64-5 
68,0 
„ 30 
w 
9 53 * 3 ^ 
9 1 1 *3 
42,08 
17*85 
29,0 
62,0 
65,0 
Oct. 1 
E 
9 IO *95 
9 47 >° 
36*05 
23,89 
28,9 
64,0 
66,5 
2 1 
E 
9 23*18 
10 0,3 
36,12 
23,82 
28,8 
68,5 
65*5 
Observed Zenith Distances of y Ursce. 
Point on the Limb, 2 0 35' North. 
Sept. 18 
E 
9 32*47 
8 34*9 
2 35 0 56*57 
2 34 3*33 
28,8 
77*5 
76*5 
23 
W 
8 20,07 
9 20,1 
2 35 0 57*03 
2*8 7 
28,9 
80,0 
76,0 
26 
w 
9 22,70 
10 18,5 
54,80 
5,10 
29*1 
80,3 
75*o 
Oct. 3 
E 
9 IO *45 
8 2,5 
1 7*95 
33 52*94 
28,7 
72,8 
78*5 
Observed Zenith Distances of y Ursce. 
Point on the Limb , i° 55' South. 
Sept. 10 
W 
8 16 58 
8 24 4 
1 55 0 7,82 
1 55 7*83 
28,1 
63,0 
64,5 
20 
E 
9 26.02 
9 I 3*9 
12,12 
12,14 
28,8 
84-5 
80,5 
23 
W 
8 4,60 
8 14,1 
9 * 5 ° 
9 * 5 1 
28,9 
84,0 
82,5 
24 
E 
8 50,25 
8 34*5 
1 5*75 
15 77 
28,9 
79 *° 
75*0 
25 
W 
9 21,40 
9 33*5 
1210 
12,12 
29,0 
82 8 
80,5 
26 
E 
8 54*63 
8 36,6 
18.03 
18.06. 
29, t 
80,0 
77*o 
28 
E 
10 5,25 
9 47*7 
16,55 
. 16,57 
29,1 
78*5 
72,5 
3 ° 
W 
10 6,12 
10 15.0 
8,88 
8 89 
29,1 
84,0 
76,0 
Oct, 3 
E 
9 27*63 
9 9*2 
18*43 
18,46 
29,0 | 
80,0 
I 76,2 
