of an Arc of the Meridian . 
4^5 
Observed Zenith Distances of 45 Draconis. 
Point on the Limb, f 20' North. 
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. 
Barometer. 
Above. 
Thermo- 
meter. 
Below. 
rev. div. 
rev. div. 
0 ' rev. div. 
0 / »/ 
Inches. 
O 
April 19 
w 
9 38,57 
4 4 6 >5 
5 20 4 51,07 
5 24 47,48 
31,1 
53 
23 
E 
8 21,37 
1 3 6,o 
43, 6 3 
40,01 
30,1 
38 
25 
W 
9 47,20 
1 4 54*5 
51,70 
48,19 
29,8 
40 
Observed Zenith Distance of 46 c Draconis. 
Point on the Limb , g° 50' North. 
April 15 J W | 9 15,70) 7 41,9 [3 50 1 3 2,80 1 3 51 31,95 | 29,8 | 44 
Observed Zenith Distance of 51 Draconis. 
Point on the Limb, i° 36' North. 
April 19 
W 
9 
48,80 
8 
55*7 
1 35 0 52,10 
1 35 52,19 
3 i,i 
53 
23 
E 
8 
43’56 
10 
27,8 
43-34 
43 , 3 i 
30,1 
38 
25 
W 
8 
54,53 
7 
46,0 
49,83 
49 , 9 ! 
29,8 
44 
Observed Zenith Distance of 1 k Cygni. 
Point on the Limb, i° 30' North. 
April 23 
E 
9 20,36 
10 42,8 
1 30 1 22,44 
1 31 21,53 
30,1 
38 
25 
W 
8 29,76 
6 58,6 1 
30,16 
29,31 
29,5 1 
5 i 
Observed Zenith Distance of 10 < Cygni. 
Point on the Limb, o° io' South. 
W 
11 32,42 
11 42,6 
0 io 0 10,18 0 10 10,19 
E 
9 36,12 
18,42} *8,45 
