272 
Captain Hall’s details of experiments 
TABLE VII. (1 st Series.) 
By the Sun. 
From 
To 
Correct Vibrations 
No. of Stars 
Interval of 
Sum of the 
in a mean solar 
day. 
observed. 
Transits. 
Factors. 
Sept. 1822. 
29 A.M. 
86125,78 
28 P.M. 
2 
I 
2 
30 A.M. 
86125,67 
2 
2 
4 
1 Oct. A.M. 
86125,56 
2 
3 
6 
2 
86125,66 
2 
4 
8 
4 
86125,74 
2 
6 
12 
5 
86125,77 
2 
7 
14 
29 P. M. 
30 A. M. 
86125,54 
2 
1 
2 
1 Oct. A.M. 
86125,45 
2 
2 
4 
2 
86125,62 
2 
3 
6 
4 
86125,72 
2 
5 
10 
5 
86125,77 
2 
6 
12 
30 P.M. 
1 Oct. A.M. 
86125,36 
2 
1 
2 
2 
86125,65 
2 
2 
4 
4 
86125,77 
2 
4 
8 
5 
86125,81 
2 
5 
10 
1 Oct. P.M. 
2 A.M. 
86125,94 
2 
1 
2 
4 A. M. 
86125,91 
2 
3 
6 
5 
861 25,92 
2 
4 
8 
2 P.M. 
4 A. M. 
861 25,89 
2 
2 
4 
5 
861 25,91 
2 
3 
6 
4 P.M. 
5 A. M. 
86125,9 6 
2 
1 
2 
Mean by Sun 
86125,73 
Sum of the Factors 
132 
Observations for the Latitude. 
the Sun. 
15th October, 1822. Face East. 
21st October 1822. Face West. 
Barometer 29,89. Thermometer 76° 
Reading 5 Ist Vernier . 14 20 15 
readings | 2nd ditto _ , 4 2I I2 
Barometer 29,88. Thermometer 78°. 
Readings ( lst /, e . r ^ ier * 77 *6 38 
6 £ 2nd ditto . .77 27 23 
41 27 
54 1 
Observ d M. Z.D. O’s L. L. J4 20 43,5 
Semidiameter . — 16 4,9 
Observed Mer. Altitude 77 27 0,5 
O’s Semi Diameter . . -f- 16 6,5 
Z. D. O’s Centre ..144 38,6 
Refraction . . + 13,8 
Parallax . . — 2,t 
Apparent Alt. O’s Centre 77 43 7 
Refraction . . — 0 12,3 
Parallax . . + 2, 
O’sMer. Z.D. ... 14 4 50,3 
O’s Declination ... 8 49 52,2 s. 
Latitude, Face East . 22 54 42,5 S. 
True Alt. of O’s Centre 77 42 56,7 
O’s True Mer. Z. Dist. 12 17 3,3 
O’s Declination . . . 10 38 59,1 S. 
Latitude, Face West . 22 56 2,4 s. 
Latitude, Face East . . . 22 54 42, 5 
• West . . . 22 56 2, 4 
Latitude of Observatory . 22 55 22,45 South. 
