ASTRONOMICAL OBSERVATIONS. 
25 
APPENDIX A—Continued. 
CAMP 74 A—OCTOBER 31, 1855—Continued. 
Observer — Lieut. H. L. Abbot, U. S. Top. Engineers. 
Object observed. 
Polaris. 
Jupiter. 
Time of observ’n 
by chronometer, 
Observed double 
altitudes. 
h. 
m. 
s. 
d. 
m. 
s. 
8 
17 
59.0 
88 
00 
00 
8 
19 
54.5 
88 
01 
20 
8 
20 
39.5 
88 
02 
00 
8 
21 
52.0 
88 
02 
30 
8 
22 
58.0 
88 
03 
00 
8 
24 
02.5 
88 
03 
30 
8 
26 
13.0 
88 
04 
10 
8 
27 
27.0 
88 
04 
50 
8 
28 
17.0 
88 
05 
30 
8 
29 
35.0 
88 
06 
10 
7 
38 
34.5 
64 
13 
50 
7 
39 
33.0 
64 
14 
10 
7 
40 
10.5 
64 
14 
40 
7 
41 
23.5 
64 
15 
20 
7 
42 
14.0 
64 
16 
20 
7 
43 
02.0 
64 
16 
30 
7 
43 
59.0 
64 
17 
20 
7 
44 
46.0 
64 
17 
30 
7 
45 
31.5 
64 
18 
10 
7 
46 
18.5 
64 
18 
10 
7 
48 
08.5 
64 
17 
50 
7 
49 
01.0 
64 
17 
30 
7 
49 
54.0 
64 
17 
30 
7 
50 
55.5 
64 
17 
20 
7 
52 
15.0 
64 
16 
30 
7 
53 
54.0 
64 
15 
30 
7 
54 
50.0 
64 
14 
30 
7 
55 
45.0 
64 
13 
50 
Index error, -)- 1' 20". Barometer, 29.4 in. Thermo¬ 
meter, 41°. 
CAMP 76 A—NOVEMBER 2, 1855. 
Observer — Lieut. H. L. Abbot, U. S. Top. Engineers. 
t) Pegasi. 
a Lyrte. 
Polaris . 
h. 
m. 
s. 
d. 
m. 
s. 
7 
05 
46.5 
136 
25 
30 
7 
07 
27.5 
136 
56 
00 
7 
08 
59.0 
137 
26 
30 
7 
10 
09.5 
137 
48 
10 
7 
11 
43.5 
138 
19 
20 
7 
13 
05.0 
139 
46 
30 
7 
15 
02.5 
93 
01 
20 
7 
16 
01.0 
92 
40 
10 
7 
16 
58.0 
92 
21 
20 
7 
17 
46.0 
92 
03 
50 
7 
18 
45.0 
91 
42 
40 
7 
20 
02.0 
91 
14 
20 
7 
24 
01.0 
86 
43 
10 
7 
25 
04.0 
86 
43 
40 
7 
26 
04.5 
86 
44 
20 
7 
26 
53.0 
86 
45 
00 
7 
27 
54.0 
86 
45 
40 
7 
28 
43.0 
86 
46 
00 
7 
29 
34.5 
86 
47 
20 
7 
31 
17.0 
86 
48 
40 
CAMP 76 A—NOVEMBER 2, 1855- 
-Continued. 
Observer — Lieut. H. L. Abbot, U. S. Top. Engineers. 
Object observed. 
Time of observ’n 
Observed double 
by chronometer. 
altitudes. 
h. m. s. 
d. in. s. 
Jupiter. 
7 38 44.5 
65 10 20 
7 39 49.0 
65 10 30 
7 40 38.0 
65 10 40 
7 41 30.0 
65 10 50 
7 42 24.5 
65 10 30 
7 44 15.5 
65 09 30 
7 45 06.0 
65 09 00 
Index error, -4- 1' 20". Barometer, 28.8 in. Thermo- 
meter, 44°. 
CAMP 77 A- 
-NOVEMBER 4, 
1855. 
Observer —Lieut. H. L. Abbot, U. S. Top. Engineers. 
h. m. s. 
d. m. s. 
n Pegasi. 
6 44 15.0 
132 33 00 
6 45 27.5 
132 59 10 
6 46 46.5 
133 24 40 
6 48 08.5 
133 51 00 
6 49 37.0 
134 20 40 
6 51 04.5 
134 49 50 
a Lyrse. 
6 27 19.5 
131 00 00 
6 28 09.5 
130 42 00 
6 28 58.0 
130 22 50 
6 29 51.0 
130 03 30 
6 30 37.0 
129 46 40 
6 31 31.0 
129 27 10 
Polaris. 
6 57 36.0 
86 22 20 
6 59 02.0 
86 22 40 
6 59 44.5 
86 23 10 
7 00 30.5 
86 23 30 
7 01 16.0 
86 23 50 
7 02 01.0 
86 24 30 
7 02 46.0 
86 24 50 
7 03 26.5 
86 25 20 
7 04 03.5 
86 26 00 
7 04 53.0 
86 26 20 
Jupiter. 
7 21 39.5 
65 21 20 
7 22 44.5 
65 22 10 
7 23 32.5 
65 22 50 
7 24 34.5 
65 23 40 
7 25 22.0 
65 24 00 
7 26 12.0 
65 24 40 
7 27 23.5 
65 25 00 
7 28 19.0 
65 25 30 
7 29 07.5 
65 25 50 
7 29 57.5 
65 25 50 
7 30 42.0 
65 25 40 
7 31 33.0 
65 25 30 
7 32 28.5 
65 25 20 
i 7 33 28.5 
65 25 00 
1 7 34 22.5 
65 24 30 
1 7 35 46.5 
65 23 30 
Index error, -f- P 20" 
Barometer, 28.7 
in. Thermomc- 
ter, 43°.5. 
