Appendix B. 
Referring the observations of the 26th, 27th and 28th June to the date of 
those of the 11th, and using the daily correction - 0 S '509 we get, by applying 
the just found mean daily correction l s, 635, the following values for the 
longitude of Bujongolo : 
11th 
June. — 
Sun at W. 
A= l h 59 n 
1 53 s - 8 
11th 
99 
99 
99 
99 = 
53- 5 
11th 
99 
99 
99 
99 = 
49 • 9 
11th 
99 
99 
99 
99 = 
49 • 0 
26th 
99 
Sun at E. 
99 = 
55 • 5 
26th 
99 
99 
99 
99 ~ 
54 • 3 
27 th 
99 
99 
99 
99 = 
52 • 8 
27 th 
99 
99 
99 
99 
54 • 9 
28th 
99 
99 
9* 
99 
50 • 2 
28th 
99 
99 
99 
99 
52 • 8 
Grouping these results for each single day of observation we get: 
Bujongolo.—11th June . A = l h 59 m 51 s- 5 
26th ,, . „ — 54-9 
27th „ . „ = 53-8 
28th „ . „ = 51-5 
Disregarding further considerations as to weight, and given the degree of 
approximation now required, the mean of these data is: 
Bujongolo . A = l h 59™ 52 s '9 E.G. 
This value is used in calculating the Greenwich time at the moment of the 
emersion of B A C 81 from the lunar dish, which phenomenon occurred on 
11th July under most favourable conditions for observation. The determina¬ 
tions of the horary angle, obtained for this occasion with the view of 
ascertaining the state of the chronometer respecting the mean local time, 
gave the following results : 
Bujongolo: 
10th July, 21 h 
18 m . 
..Obs. No. 47. 
Sun at E. 
C tm — + 5 h 
15 m 
33 s - 
0 
10th 
99 
21 
20 
9 9 
48 
99 
99 
„ = + 
32 
3 
11th 
99 
20 
01 
99 
56 
99 
99 
)! = + 5 
15 
34 
9 
11th 
99 
20 
03 
99 
57 
99 
99 
>) = + 
33 
7 
11th 
99 
20 
07 
9) 
58 
99 
99 
J, = + 
32 
4 
11th 
99 
20 
11 
99 
59 
99 
99 
>> = + 
32 
9 
12th 
99 
18 
08 
99 
60 
99 
99 
,, — + 5 
15 
34 
4 
312 
