10 
ASTRONOMICAL OBSERVATIONS 
APPENDIX A—Continued. 
CAMP No. 17—August 13, 1853. 
CAMP No. 19— August 15, 1853. 
Object observed. 
Time of observ’n 
by chronometer. 
Observed double 
altitude. 
h. 
m. 
s. 
o 
n 
« Cygni. 
19 
05 
00. 9 
102 
21 
00 
19 
05 
37. 5 
102 
34 
50 
19 
06 
18. 2 
102 
49 
20 
19 
06 
55. 1 
103 
02 
30 
19 
07 
51. 1 
103 
21 
30 
Arcturus. 
19 
09 
15. 2 
90 
43 
00 
19 
09 
48. 5 
90 
29 
40 
19 
10 
13. 4 
90 
19 
30 
19 
10 
45. 0 
90 
06 
50 
19 
11 
26. 7 
89 
50 
10 
Moon’s W. limb_ 
19 
16 
19. 0 
63 
17 
00 
Dist. between Spica 
19 
20 
52. 9 
54 
58 
30 
& Moon’s W. limb. 
19 
22 
21. 6 
54 
59 
10 
19 
23 
40.4 
55 
01 
30 
19 
24 
32. 0 
55 
01 
50 
19 
25 
14. 6 
55 
02 
00 
Moon’s W. limb_ 
19 
25 
54. 3 
62 
43 
40 
Altair __ 
19 
35 
15. 2 
105 
16 
30 
Dist. between the 
19 
42 
41. 4 
51 
02 
00 
Moon and Altair. 
19 
44 
19. 9 
51 
01 
50 
19 
45 
17. 1 
51 
01 
40 
19 
46 
40. 2 
51 
00 
30 
19 
47 
45. 0 
50 
00 
20 
Altair. 
19 
51 
16. 5 
110 
16 
40 
Moon's W. limb_ 
19 
52 
15. 5 
60 
21 
20 
Polaris (AWW)_ 
19 
56 
16. 9 
69 
08 
10 
19 
57 
33. 3 
69 
08 
20 
Polaris (GGG)- 
19 
54 
32. 0 
69 
09 
10 
19 
55 
48. 9 
69 
09 
20 
19 
58 
25. 6 
69 
10 
00 
Index error — 10'. Barometer 29. 314 in. Ther. 68°. 2. 
CAMP No. 18 —August 14, 1853. 
a Cygni. 
19 
05 
41. 9 
102 
13 
50 
19 
08 
15. 5 
103 
05 
30 
19 
12 
20. 2 
103 
06 
30 
19 
15 
59. 3 
102 
55 
00 
19 
17 
06. 8 
103 
15 
30 
Arcturus_ 
19 
31 
40. 1 
81 
52 
10 
19 
34 
13. 6 
80 
50 
00 
19 
35 
3S. 8 
80 
13 
40 
19 
36 
24. 1 
79 
55 
00 
19 
37 
13. 0 
79 
34 
00 
Folaris .. 
19 
53 
18. 8 
69 
00 
00 
19 
56 
58. 9 
68 
58 
00 
20 
00 
07. 0 
68 
59 
00 
20 
02 
25. 5 
69 
02 
00 
20 
03 
51. 4 
69 
01 
50 
Index error — 10'. Barometer 29. 222 in. Tlier. 72°.0. 
Object observed. 
Time of observ’n 
by chronometer. 
Observed double 
altitude. 
h. 
m. 
s. 
o 
/ 
„ 
Arcturus.. 
19 
10 
27. 0 
90 
50 
00 
19 
12 
09. 8 
90 
08 
50 
19 
14 
10. 4 
89 
17 
40 
19 
16 
50. 7 
88 
12 
50 
19 
17 
26. 9 
87 
58 
20 
19 
18 
01. 2 
87 
43 
30 
19 
18 
35. 8 
87 
29 
20 
19 
19 
06. 1 
87 
17 
40 
Cygni . 
19 
20 
31. 0 
107 
18 
40 
19 
21 
22. 6 
107 
37 
30 
19 
22 
18. 2 
107 
56 
60 
19 
22 
53. 5 
108 
10 
10 
19 
23 
32. 6 
108 
23 
40 
Polaris_ 
19 
29 
03.5 
68 
34 
10 
19 
29 
44. 0 
68 
35 
30 
19 
30 
25. 2 
68 
36 
00 
19 
31 
03. 0 
68 
36 
20 
19 
31 
51. 6 
68 
37 
00 
Index error — 10'. Barometer 29. 051 in. Tlier. 74°.9. 
CAMP No. 20— August 10, 1853. 
Polaris. 
20 
02 
03. 0 
69 
01 
00 
20 
02 
43. 8 
69 
01 
50 
20 
03 
18. 2 
69 
02 
10 
20 
03 
50. 0 
69 
03 
10 
20 
04 
20. 4 
69 
03 
10 
20 
05 
08. 3 
69 
04 
00 
20 
05 
46.7 
69 
04 
20 
20 
06 
23. 5 
69 
04 
30 
20 
07 
00. 0 
69 
05 
20 
20 
07 
48. 6 
69 
06 
00 
a Cygni. 
20 
09 
30. 6 
124 
20 
10 
20 
10 
29. 5 
124 
42 
00 
20 
11 
43. 2 
125 
07 
40 
20 
12 
27. 6 
125 
23 
10 
20 
13 
10. 1 
125 
38 
30 
Corona: Borealis .... 
20 
20 
13. 1 
101 
32 
00 
20 
23 
51. 6 
100 
01 
20 
20 
24 
35. 0 
99 
44 
00 
20 
25 
29. 1 
99 
22 
50 
20 
26 
21. 0 
99 
00 
40 
20 
26 
54. 8 
98 
47 
00 
20 
27 
36. 2 
98 
29 
50 
Index error — 10’. Barometer 29. 017 in. Tlier. 70'-’. 95. 
CAMP No. 21— August 17, 1853. 
Arctu rus. 
19 
23 
55. 4 
95 
49 
20 
19 
24 
27. 3 
85 
37 
00 
19 
24 
56. 5 
85 
24 
50 
19 
25 
32.7 
85 
09 
40 
19 
26 
17. 1 
84 
52 
40 
19 
26 
51. 6 
84 
37 
30 
