214 
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 40 
^ and 30° (continued). 
33 17 
322 37 
July 1846. 
Berard. 
o / 
19 13 
O / 
-0 57 
o / 
18 16 
At sea. 
36 18 
322 46 
Oct. 1837. 
Vaillant. 
17 33 
+ 0 20 
17 53 
At sea. 
38 43 
323 02 
Aug. 1830. 
Erman. 
21 43 
+ 1 20 
23 03 
At sea. 
37 48 
323 07 
June 1839. 
Du Petit-Thouars. 
19 57 
+ 0 04 
20 01 
At sea. 
32 11 
323 13 
July 1846. 
Berard. 
18 30 
— 0 57 
17 33 
At sea. 
33 54 
323 14 
Oct. 1837. 
Vaillant. 
18 02 
-hO 20 
18 22 
At sea. 
32 46 
323 41 
July 1846. 
Berard. 
18 29 
— 0 55 
17 34 
At sea. 
31 04 
324 03 
1836. 
FitzRoy. 
18 28 
+ 0 28 
18 56 
At sea. 
39 15 
324 36 
Aug. 1 830. 
Erman. 
23 06 
+ 1 16 
24 22 
At sea. 
37 09 
324 36 
Mav 1846. 
Sulivan. 
23 37 
-0 52 
22 45 
At seaf. 
30 01 
324 39 
Oct. 1837. 
Vaillant. 
18 38 
+ 0 20 
18 58 
At sea. 
32 03 
324 55 
1836. 
FitzRoy. 
18 22 
+ 0 28 
18 50 
At sea. 
34 35 
325 11 
July 1846. 
Berard. 
18 34 
-0 52 
17 40 
At sea. 
37 40 
325 15 
Mav 1846. 
Sulivan. 
23' 50 
— 0 50 
23 00 
At seaf. 
31 01 
325 41 
Oct. 1837. 
Vaillant. 
18 02 
+ 0 19 
18 21 
At sea. 
39 32 
325 54 
June 1839. 
Du Petit-Thouars. 
20 55 
+ 0 04 
20 59 
At sea. 
38 10 
325 55 
Mav 1846. 
Sulivan. 
23 21 
-0 50 
22 31 
At seaf. 
35 17 
326 58 
July 1846. 
Berard. 
19 49 
-0 52 
18 57 
At sea. 
36 38 
327 48 
July 1846. 
Berard. 
20 59 
— 0 52 
20 07 
At sea. 
35 38 
328 28 
1836. 
FitzRoy. 
21 34 
+ 0 26 
22 00 
At sea. 
39 24 
328 48 
1843-1844 
Vidal. 
27 30 
— 0 25 
27 05 
Flores. 
39 41 
328 53 
1842. 
Vidal. 
27 30 
— 0 18 
27 12 
Corvo. 
36 40 
330 52 
July 1846. 
Berard. 
20 42 
— 0 52 
19 50 
At sea. 
37 15 
331 06 
1836. 
FitzRoy. 
22 09 
-fO 26 
22 35 
At sea. 
39 05 
331 56 
1843-1844 
Vidal. 
26 46 
— 0 25 
26 21 
Graciosa. 
37 49 
332 00 
1836. 
FitzRoy. 
24 00 
4-0 26 
24 26 
At sea. 
38 39 
332 47 
1836. 
FitzRoy. 
24 19 
+ 0 26 
24 45 
Terceira. 
38 45 
332 52 
July 1836. 
FitzRoy. 
24 21 
+ 0 26 
24 47 
At sea. 
37 44 
334 17 
May 1831. 
Austin. 
24 31 
+ 0 54 
25 25 
St. Michaels. 
37 48 
334 20 
1836. 
FitzRoy. 
24 15 
+ 0 22 
24 37 
St. Michaels. 
37 46 
334 20 
1843-1844 
Vidal. 
25 45 
-0 22 
25 23 
St. Michaels. 
36 57 
334 55 
1843-1844 
Vidal. 
25 17 
— 0 22 
24 55 
Santa Maria. 
36 19 
339 41 
Aug. 1 846. 
Berard. 
20 51 
— 0 36 
20 15 
At sea. 
37 05 
341 35 
Nov. 1842. 
Jehenne. 
21 02 
— 0 10 
20 52 
At sea. 
33 00 
343 50 
1832. 
FitzRoy. 
23 00 
4-0 34 
23 34 
At sea. 
37 20 
344 30 
1836. 
FitzRoy. 
23 54 
d-O 14 
24 08 
At sea. 
38 41 
345 00 
1836. 
FitzRoy. 
23 35 
-fO 14 
23 49 
At sea. 
30 02 
346 18 
Feb. 1836. 
Vaillant. 
22 24 
+ 0 22 
22 46 
At sea. 
30 41 
346 36 
Sept. 1842. 
Berard. 
22 00 
-0 11 
21 49 
At sea. 
31 16 
347 32 
Sept. 1842. 
Berard. 
23 00 
-0 11 
22 49 
At sea. 
33 16 
348 09 
June 1838. 
Berard. 
20 01 
-fO 06 
20 07 
At sea. 
32 19 
348 49 
Sept. 1842. 
Berard. 
22 45 
— 0 11 
22 34 
At sea. 
33 34 
349 06 
Feb. 1836. 
Vaillant. 
24 31 
+ 0 23 
24 54 
At sea. 
33 00 
350 05 
Sept. 1842. 
Berard. 
22 00 
-0 08 
21 52 
At sea. 
34 10 
351 20 
Sept. 1842. 
Berard. 
22 00 
— 0 08 
21 52 
At sea. 
31 57 
351 51 
June 1838. 
Berard. 
20 05 
4-0 05 
20 10 
At sea. 
35 59 
352 14 
Feb. 1836. 
Vaillant. 
22 20 
-pO 10 
22 30 
At sea. 
35 25 
352 16 
Aug. 1846. 
Berard. 
21 05 
— 0 15 
20 50 
At sea. 
35 25 
353 11 
June 1838. 
Berard. 
22 13 
+ 0 03 
22 16 
At sea. 
36 11 
353 34 
Aug. 1846. 
Berard. 
20 26 
-0 12 
20 14 
At sea. 
35 29 
353 47 
Aug. 1846. 
Berard. 
20 35 
-0 12 
20 23 
At sea. 
36 26 
356 03 
Aug. 1846. 
Berard. 
19 15 
0 00 
19 15 
At sea. 
35 48 
357 00 
1842. 
Berard. 
18 30 
-fO 03 
18 33 
At sea. 
36 20 
358 52 
Aug. 1846. 
Berard. 
18 49 
+ 0 10 
18 59 
At sea. 
36 46 
358 53 
June 1838. 
Berard. 
19 47 
-0 04 
19 43 
At sea. 
36 28 
359 19 
Aug. 1846. 
Berard. 
19 16 
+ 0 18 
19 34 
At sea. 
36 10 
359 40 
Aug. 1846. 
Berard. 
19 18 
4-0 18 
19 36 
At sea. 
38 58 
1 00 
Aug. 1846. 
Berard. 
19 48 
+ 0 18 
20 06 
A.t sea. 
