An Account of the Measurement 
466 
Observed Zenith Distance of y Ursce. 
Point on the Limb, 3 0 15' North. 
Day of 
the 
month. 
Face of 
the arch, 
E. orW. 
Plumb- 
line. 
Observa- 
tion of 
the star. 
Zenith distance 
in revolutions 
and parts. 
Zenith distance 
rectified. 
Barometer. 
Abpve. 
Thermo- 
meter. 
Below. 
rev. div. 
rev. div. 
0 ' rev. div. 
0 / „ 
Inches. 
• 
April 20 
E 
8 44,30 
12 42,7 
3 15 3 58,40 
3 18 55,79 
29,9 
5° 
22 
E 
xo 36,00 
14 36,0 
4 0,00 
5^39 
29,9 
5 ° 
2 3 
E 
4 28,25 
8 29,5 
°,75 
57 *H 
30,1 
48 
24 
w 
9 3 6 * 9 ° 
5 2 5 >J 
1 1,80 
19 8,21 
29,8 
47 
Observed Zenith Distance of t\ Ur see. 
Point on the Limb, i° io' South. 
April 16 
W 
10 13,90 
10 40,7 
1 10 0 26,80 
1 10 26,84 
29,9 
45 
2 3 
E 
3 37 * 5 ° 
3 4*6 
32,40 
3 2 *45 
30,1 I 
38 
Observed Zenith Distance of 85 < Herculis. 
Point on the Limb, 5 0 20' South. 
April 16 
W 
11 1,59 11 47,9 
5 20 0 46,31 
5 20 46,39 
29,0 
40 
19 
w 
9 40,30110 30,5 
39,26 
39,26 
3 i *5 
53 
23 
E 
9 2 1, 16 1 9 23,5 
56,66 
56*75 
30,1 
38 
