150 
LIEUT.-COLONEL SABINE ON TERRESTRIAL MAGNETISM 
Observations of Declination 
1842. 
Position. 
Initials. 
Declination 
observed. 
Direction of 
ship’s head. 
Lat. 
Long. 
O / 
Mar. 24. 
-58 46 
257 50 
c. 
— 21 52 
E. | N. 
c. 
-24 59 
e. by n. 
Cr. 
— 23 41 
E. by n. 
25. 
-58 54 
262 48 
Cr. 
-27 53 
E.N.E. 
26. 
-59 02 
268 40 
c. 
-23 47 
E.N.E. 
c. 
-24 43 
e. by n. | n. 
c. 
-23 30 
e. by n. •§■ n. 
c. 
-25 31 
N.E.by E.f E. 
Cr. 
— 22 22 
E.N.E. 
Cr. 
-25 51 
N.E. 
Cr. 
—22 29 
E. 
27. 
-59 04 
272 20 
C. 
-25 45 
E.N.E. 
C. 
—26 39 
E.N.E. 
Cr. 
— 25 53 
E.N.E. 
Cr. 
-23 12 
E.N.E. 
28. 
-58 56 
275 50 
C. 
-26 15 
N.E. by E. 
C. 
-27 37 
n.e. by E. 
-58 54 
276 40 
c. 
— 30 22 
N. by e. 
c. 
—29 25 
N. by e. 
c. 
-27 06 
n.e. by e. 
c. 
-27 54 
n.e. by e. 
Cr. 
-26 44 
n.e. by e. 
29. 
-58 22 
279 30 
C. 
— 24 53 
n.e. by e. 
C. 
-25 19 
n.e. by e. 
-58 20 
280 00 
c. 
— 31 06 
n. by w. 
c. 
-29 30 
N. by e. 
c. 
-24 59 
E. 
c. 
27 46 
N.E. E. 
] 
c. 
-25 09 
E.N.E. 
c. 
-25 27 
E.N.E. 
-58 22 
279 30 
Cr. 
-27 45 
N. 
1 
Cr. 
— 25 08 
E- 
30. 
-58 30 
282 00 
C. 
-24 51 
N.E. by E.-^E. 
1 
c. 
-24 19 
E.N.E. 
| 
t) 
c. 
— 25 46 
N.E. \ E. 
j 
c. 
-25 46 
n.e. by e. 
s 
c. 
— 25 16 
n.e. by e. 
c. 
— 25 49 
n.e. by e. 
| 
c. 
-27 18 
n.e. by E. 
I 
c. 
-25 46 
n.e. by e. 
c. 
-26 05 
N.E. by E.|-E. 
3 
i 
c. 
-27 48 
n.e. by e. 
\ 
— 58 30 
282 30 
c. 
-25 46 
e. by n. 
5 
j 
c. 
-25 43 
e. by N. 
I 
Cr. 
-25 04 
E.N.E. 
1 
Cr. 
-25 25 
e. by n. 
Cr. 
-23 46 
E.N.E. 
31. 
00 
to 
1 
285 08 
C. 
-26 49 
N.e. by N. 
C. 
-25 59 
n.e. by n. 
-58 30 
285 35 
Cr. 
— 24 06 
N.E. 
April 1. 
— 57 35 288 54 
Cr. 
— 25 30 
n.e. by n. 
3. 
-56 46 294 30 
C. 
-21 46 
N.E. 
Cr. 
-19 07 
N.E. 
5. 
-52 22 
301 00 
C. 
—21 21 
N. by e. 
C. 
— 18 20 
N. by E. 
c. 
-20 32 
N . by E. 
6. 
— 51 50 
301 35 
c. 
-19 07 
N.N.W. 
Inclination. 
j>— 69 45 
—68 50 
V — 67 40 
|>-67 00 
>—65 30 
>-64 50 
-63 40 
>—63 00 
— 61 13 
| -59 00 
— 53 54 
I —52 30 
(Continued.) 
Correc- 
tion for 
ship’s at- 
traction. 
Corrected 
Declination 
O / 
— 4 15 
- 2°6 on 
— 4 11 
-29 10 
- 4 11 
-27 52 J 
- 3 38 
— 31 31 
— 3 24 
-27 ill 
- 3 29 
— 28 12 
- 3 34 
-27 04 
— 3 17 
-28 48 
- 3 24 
-25 46 j 
— 2 24 
— 28 15 
— 4 01 
-26 30 J 
— 3 16 
-29 on 
- 3 16 
-29 55 
— 3 16 
-29 09 
— 3 16 
-26 28 J 
— 2 35 
-28 501 
- 2 35 
-30 12 
- 0 33 
— 30 55 
- 0 33 
-29 58 
— 2 35 
-29 41 
— 2 35 
-30 29 
- 2 35 
-29 19 
- 2 30 
-27 23A 
- 2 30 
-27 49 
+ 0 31 
— 30 35 
— 0 31 
— 30 01 
— 3 30 
-28 29 
- 2 15 
— 30 01 
- 2 55 
-28 04 
— 2 55 
— 28 22 
0 0 
-27 45 
- 3 30 
-28 38 
- 2 35 
-27 261 
— 2 47 
-27 06 
- 2 08 
-27 54 
- 2 23 
—28 09 
- 2 23 
-27 39 
— 2 23 
— 28 12 
— 2 23 
-29 41 
- 2 23 
— 28 09 
- 2 35 
— 28 40 
— 2 23 
-30 11 
- 3 02 
-28 481 
- 3 02 
-28 45 
- 2 41 
-27 45 
- 3 02 
-28 27 
— 2 41 
— 26 27 
— 1 23 
— 28 12 
— 1 23 
— 27 22 
— 1 50 
-25 26 
_ 1 16 
-26 46 
- 1 30 
-23 16) 
— 1 30 
— 20 37/ 
— 0 17 
-21 381 
— 0 17 
-18 38 
— 0 17 
-20 49 
+ 0 30 
-18 37 J 
Correc- 
tion for 
index 
error. 
True Decli- 
nation. 
+ 1 30 
+ 1 30 
+ 1 30 
+ 1 30 
+ 1 30 
+ 1 30 
— 1 30 
+ 1 30 
+ 1 30 
o / 
-26 13 
-26 25 
-27 08 
-28 25 
-27 13 
-26 49 
-26 13 
-25 16 
-20 26 
+ 1 30 —18 25 
Remarks. 
