LIEUT.- CO LON EL SABINE ON TERRESTRIAL MAGNETISM 
221 
Observations of Declination. (Continued.) 
1841. 
Position. 
Observers. 
Declination 
observed. 
Direction of 
ship’s head. 
Lat. 
Lon 
g. 
Jan. 22. 
O 
-73 
46 
O 
171 
25 
Cr. 
O 
42 
16 
N.E. \ N. 
-73 
46 
171 
25 
Cr. 
— 
43 
41 
N.E. \ N. 
-73 
46 
171 
25 
Cr. 
— 
36 
51 
E.N.E. 
-73 
46 
171 
25 
Cr. 
— 
36 
16 
E.N.E. 
-73 
46 
171 
25 
Cr. 
— 
36 
32 
E. by N. 
-73 
46 
171 
25 
Cr. 
— 
36 
26 
e. by n. 
-73 
46 
171 
35 
Cr. 
— 
36 
14 
E. 
-73 
46 
171 
35 
Cr. 
— 
36 
12 
E. 
-73 
46 
171 
35 
Cr. 
— 
36 
50 
E. 
-73 
46 
171 
35 
Cr. 
— 
35 
47 
e. by s. 
-73 
59 
171 
40 
C. 
— 
62 
48 
s. 
-73 
59 
171 
40 
C. 
— 
63 
52 
s. 
-74 
03 
171 
40 
C. 
— 
62 
41 
s. 
-74 
03 
171 
40 
C. 
— 
63 
47 
s. 
-74 
04 
173 
09 
C. 
— 
40 
33 
e. by s. 
-74 
04 
172 
43 
c. 
— 
40 
47 
e. by s. 
-74 
04 
172 
43 
Cr. 
— 
38 
47 
e. by s. 
23. 
-73 
55 
172 
46 
Cr. 
— 
62 
02 
s. 
-73 
59 
171 
32 
Cr. 
— 
38 
22 
e. by s. 
25. 
-74 
24 
168 
28 
C. 
— 
77 
13 
s.s.w. 
-74 
24 
168 
28 
c. 
— 
81 
13 
s.s.w. 
-74 
24 
168 
28 
Cr. 
— 
80 
24 
s.s.w. 
-74 
28 
168 
46 
Cr. 
— 
39 
28 
E.S.E. 
-74 
28 
168 
46 
Cr. 
— 
38 
39 
E.S.E. 
-74 
28 
168 
46 
Cr. 
— 
39 
57 
E.S.E. 
-74 
50 
168 
45 
C. 
— 
43 
23 
e. by s. 
-75 
37 
168 
28 
C. 
— 
102 
27 
s. by w. 
26 . 
-74 
45 
168 
48 
Cr. 
— 
33 
53 
E. \ S. 
27- 
-75 
40 
168 
28 
C. 
— 
53 
33 
E.S.E. 
-75 
40 
168 
28 
C. 
— 
56 
14 
E.S.E. 
-75 
40 
168 
28 
C. 
— 
60 
19 
E.S.E. 
-75 
40 
168 
28 
Cr. 
— 
55 
50 
E.S.E. 
-75 
40 
168 
28 
Cr. 
— 
56 
52 
E.S.E. 
—75 
40 
168 
28 
Cr. 
— 
58 
39 
E.S.E. 
-75 
58 
168 
50 
C. 
— 
72 
06 
S.E. \ E. 
-75 
58 
168 
50 
C. 
— 
73 
11 
S.E. \ E. 
28. 
-76 
47 
169 
26 
c. 
— 
72 
17 
E. | S. 
-76 
47 
169 
26 
c. 
— 
70 
45 
e. by s. 
-77 
17 
171 
38 
c. 
— 
81 
31 
E. -A- S. 
-77 
22 
172 
00 
c. 
— 
80 
29 
E. i S. 
-77 
30 
172 
20 
c. 
— 
119 
58 
N. f W. 
-77 
17 
172 
20 
c. 
— 
116 
46 
N. 4 W. 
29. 
-77 
47 
176 
23 
p. 
— 
98 
39 
N. by e. 
-77 
47 
176 
23 
p. 
— 
94 
04 
n. by e. 
-77 
47 
176 
14 
Cr. 
— 
100 
48 
N. 
-77 
46 
176 
38 
C. 
— 
123 
50 
n.w. by n. 
-77 
46 
176 
00 
c. 
— 
110 
43 
n. by w. 
31. 
-77 
06 
187 
30 
Cr. 
— 
65 
19 
N.E. 
-77 
06 
187 
42 
C. 
— 
64 
40 
N.E. 
Feb. 1. 
-77 
03 
189 
03 
c. 
— 
76 
06 
s.e. by s. 
-77 
03 
189 
03 
c. 
— 
74 
36 
s.e. by s. 
-77 
03 
189 
03 
c. 
— 
77 
11 
S.S.E. 
2. 
-77 
45 
187 
08 
c. 
— 
74 
47 
s. 62° e. 
-77 
45 
187 
08 
c. 
— 
75 
23 
s.e. by e. 
-77 
45 
187 
08 
c. 
— 
76 
56 
s.e. by e. 
-77 
45 
187 
08 
c. 
— 
77 
48 
s. 50° e. 
Inclination. 
-86 50 
>-86 40 
>-86 20 
>-87 10 
/ 
— 87 40 
-87 20 
-87 60 
-87 10 
— 87 00 
J> — 87 00 
> — 86 00 
Correc- 
tion for 
ship’s at- 
traction. 
Corrected Declination. 
-85 50 
— 24 30 
— 24 30 
-29 58 
— 29 58 
— 32 03 
-32 03 
— 31 04 
— 31 04 
— 31 04 
— 30 36 
0 
0 
0 
0 
-27 31 
-27 31 
-27 31 
0 0 
-27 31 
+ 13 46 
4-13 46 
+ 13 46 
-34 13 
— 34 13 
-34 13 
— 46 49 
— 8 23 
-47 08 
— 36 33 
— 36 33 
-36 33 
-36 33 
-36 33 
— 36 33 
-28 16 
-28 16 
-36 36 
-36 38 
— 34 42 
— 34 42 
+ 4 46 
+ 1 35 
— 6 21 
— 6 21 
0 0 
+ 18 23 
+ 6 21 
— 17 26 
-17 26 
— 14 14 
— 14 14 
-19 48 
-21 00 
—20 29 
-20 29 
-18 56 
Correc- 
tion for 
index 
error. 
True Decli- 
nation. 
- 64 12 
- 65 04 
— 69 43 + 1 03 — 68 40 
- 66 46 > — 66 44 + 1 03— 65 41 
- 68 11 
- 66 49 
- 66 14 
- 68 35 
- 68 29 j 
- 67 18 
- 67 16 
- 67 54 
- 62 48 65 15 + 1 03 
- 63 52 
- 62 41 
- 63 47 
- 68 04 
- 68 18 
- 66 1 8 )> — 66 07 +1 03 
- 62 02 
- 65 33 
- 63 27 
- 67 27 
- 66 38 
- 73 41 
- 72 52 j 
- 74 lOj 
- 90 12 
- 94 04 
- 81 01 
- 90 06 
- 92 47 
- 96 52 
- 92 23 
- 93 25 
- 95 12 
-100 22 
-101 27/ 
-108 53' 
-107 23 ’ 
-116 13 
-115 01 
-115 12 
-115 11 J 
-105 00" 
-100 25 
-100 48 > — 103 12 +1 03—102 09 
-105 27 
-104 22 
- 82 45 s 
- 82 06 
- 90 20 >- 86 12 -1-1 03- 85 09 
- 88 50 
- 86 59 
- 95 47 
- 95 52 
- 97 25 
- 96 44 J>- 96 24 + 1 03 - 95 21 
>- 91 47 
100 44 
108 08 
1 i 
2 r 
— 115 24 
+ 1 03 
+ 1 03 
+ 1 03 
+ 1 03 
- 90 44 
- 99 41 
-107 05 
-114 21 
2 g 2 
