220 
LINES OF MAGNETIC DECLINATION IN THE ATLANTIC. 
Table XII. (Continued.) 
Lat. 
Long. 
Date. 
Observer. 
Observed 
Declina- 
tion. 
Correc- 
tion for 
Epoch. 
Corrected 
Declina- 
tion. 
Remarks. 
Between the latitudes of 0° and - 
-10' 
(continued). 

0 
1 
04 
329 
20 
Jan. 1837 .!du Petit-Thouars. 
O 
12 
20 
O 
+ 0 
26 
O 
12 
46 
At sea. 
— 
1 
21 
329 
29 
July 1830. 
Erman. 
9 
19 
+ 1 
21 
10 
40 
At sea. 
— 
2 
50 
329 
34 
May 1846. 
Sulivan. 
10 
18 
—1 
00 
9 
18 
At seaf . 
— 
0 
35 
329 
42 
July 1830. 
Erman. 
9 
51 
+ 1 
21 
11 
12 
At sea. 
— 
0 
28 
329 
42 
Feb. 1832. 
FitzRoy. 
8 
10 
+ 1 
15 
9 
25 
At sea. 
— 
0 
01 
330 
01 
Feb. 1832. 
FitzRoy. 
8 
58 
+ 1 
15 
10 
13 
At sea. 
— 
0 
46 
330 
03 
May 1846. 
Sulivan. 
10 
54 
-0 
55 
9 
59 
At seaf. 
— 
0 
07 
330 
08 
Dec. 1839. 
Ross. 
10 
35 
0 
00 
10 
35 
At seaf. 
— 
9 
18 
330 
30 
Oct. 1842. 
Berard. 
11 
00 
-0 
27 
10 
33 
At sea. 
— 
7 
47 
330 
48 
Jan. 1847. 
Stanley. 
13 
41 
— 1 
17 
12 
24 
At seaf. 
— 
5 
59 
331 
08 
Aug. 1842, 
Jehenne. 
13 
04 
-0 
25 
12 
39 
At sea. 
— 
7 
02 
332 
02 
Oct. 1842. 
Berard. 
13 
00 
— 0 
25 
12 
35 
At sea. 
— 
4 
58 
332 
10 
Jan. 1847. 
Stanley. 
14 
34 
— 1 
11 
13 
23 
At seaf. 
— 
8 
02 
333 
44 
Sept. 1836. 
Vaillant. 
U 
30 
+ 0 
33 
12 
03 
At sea. 
— 
2 
34 
333 
50 
Jan. 1847. 
Stanley. 
14 
27 
— 1 
05 
13 
22 
At seaf. 
— 
3 
10 
334 
09 
Oct. 1842. 
Berard. 
15 
45 
— 0 
24 
15 
21 
At sea. 
— 
1 
40 
335 
01 
Oct. 1842. 
Berard. 
15 
00 
-0 
24 
14 
36 
At sea. 
— 
5 
15 
335 
26 
1836. 
Vaillant. 
13 
46 
+ 0 
35 
14 
21 
At sea. 
— 
0 
41 
335 
40 
Oct. 1842. 
Berard. 
15 
00 
-0 
24 
14 
36 
At sea. 
— 
7 
48 
335 
46 
Aug. 1 842. 
Jehenne. 
14 
29 
-0 
26 
14 
03 
At sea. 
— 
0 
19 
335 
50 
Jan. 1847. 
Stanley. 
15 
05 
— 1 
10 
13 
55 
At seaf. 
— 
1 
52 
336 
43 
May 1839. 
Du Petit-Thouars. 
14 
48 
+ 0 
04 
14 
52 
At sea. 
— 
3 
38 
337 
28 
Mar. 1836. 
Vaillant. 
14 
30 
+ 0 
36 
15 
06 
At sea. 
— 
3 
18 
338 
45 
May 1839. 
Du Petit-Thouars. 
15 
58 
+ 0 
04 
16 
02 
At sea. 
— 
1 
15 
340 
01 
.Mar. 1836. 
Vaillant. 
14 
37 
+ 0 
33 
15 
10 
At sea. 
— 
0 
40 
340 
10 
Jan. 1846. 
Berard. 
17 
17 
-0 
52 
16 
25 
At sea. 
— 
2 56 
341 
10 
Jan. 1846. 
Berard. 
17 
47 
-0 
52 
16 
55 
At sea. 
— 
4 
29 
341 
16 
May 18.39. 
Du Petit-Thouars. 
16 
33 
+ 0 
05 
16 
38 
At sea. 
— 
9 
30 
342 
28 
1836. 
FitzRoy. 
15 
56 
+ 0 
35 
16 
31 
At sea. 
— 
4 
45 
342 
39 
Jan. 1846. 
Berard. 
19 
01 
— 0 
54 
18 
07 
At sea. 
— 
5 
55 
344 
18 
May 1839. 
Du Petit-Thouars. 
18 
46 
+0 
05 
18 
51 
At sea. 
— 
6 
38 
344 
19 
Jan. 1846. 
Berard. 
19 
27 
-0 
54 
18 
33 
At sea. 
— 
1 
51 
344 
47 
Sept. 1837. 
Vaillant. 
17 
47 
+ 0 
20 
18 
07 
At sea. 
— 
0 
44 
344 
58 
Sept. 1837. 
Vaillant. 
17 
34 
+ 0 
20 
17 
54 
At sea. 
— 
5 
12 
345 
04 
Sept. 1837. 
Vaillant. 
18 
52 
+ 0 
22 
19 
14 
At sea. 

2 
56 
345 
13 
Sept. 1837. 
Vaillant. 
17 
53 
+ 0 
20 
18 
13 
At sea. 
— 
7 55 
345 
35 
June 1846. 
Berard. 
19 
16 
-0 
58 
18 
18 
Anchorage, Ascension. 
— 
7 
54 
345 
36 
May 1839. 
Du Petit-Thouars. 
18 
31 
+ 0 
04 
18 
35 
Anchorage, Ascension. 
7 
54 
345 
36 
18.36. 
FitzRoy. 
17 
36 
+ 0 
31 
18 
07 
Anchorage, Ascension. 
— 
7 
11 
345 
39 
Sept. 1837. 
Vaillant. 
19 
13 
+ 0 
20 
19 
33 
At sea. 
— 
8 
17 
346 
09 
May 1839. 
Du Petit-Thouars. 
18 
54 
+ 0 
04 
18 
58 
At sea. 
— 
8 
49 
346 
30 
Sept. 1837. 
Vaillant. 
17 
58 
+ 0 
20 
18 
18 
At sea. 
— 
9 
52 
347 
26 
1836. 
FitzRoy. 
17 
43 
+ 0 
31 
18 
14 
At sea. 
— 
9 
30 347 
48 
June 1846. 
Berard. 
19 
16 
— 0 
58 
18 
18 
At sea. 
— 
9 
49: 347 
55 
May 1839. 
Du Petit-Thouars. 
19 
37 
+ 0 
04 
19 
41 
At sea. 
— 
1 
21 
5 
38 
1829. 
Boteler. 
21 
01 
+0 
31 
21 
32 
Anno Bona. 
Between the latitud 
es ol 
— 1 0° a 
id — 
o 
o 
18 
25 
321 
05 
Dec. 1843. 
Pasley. 
3 
10 
— 0 
38 
2 
32 
At sea. 

18 
14 
321 
08 
1832. 
FitzRoy. 
1 
04 
+ 1 
10 
2 
14 
At sea. 
— 
17 
13 
321 
12 
1832. 
FitzRoy. 
1 
08 
+ 1 
10 
2 
18 
At sea. 

16 
35 
321 
12 
1832. 
FitzRoy. 
1 
52 
+ 1 
10 
3 
02 
At sea. 
— 
18 
59 
321 
16 
1832. 
F'itzRoy. 
1 
14 
+ 1 
10 
2 
24 
At sea. 

17 
58 
321 
18 
Mar. 1832. 
FitzRoy. 
2 
00 
+ 1 
13 
3 
13 
Abrolhos Island. 

15 
01 
321 
19 
1832. 
FitzRoy. 
1 
30 
+ 1 
10 
2 
40 
At sea. 
— 
13 
25 
321 
23 
1832. 
FitzRoy. 
2 
08 
+ 1 
10 
3 
18 
At sea. 
