224 
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 — 
20° and 
— 30° (continued). 
0 
— 27 
/ 
42 
331 
10 
Nov. 1842. 
Berard. 
O 
6 
/ 
15 
-0 
27 
O 
5 
48 
At sea. 
-24 
42 
332 
05 
Dec. 1839. 
Ross. 
7 
08 
0 
00 
7 
08 
At seaf. 
— 26 
58 
333 
24 
Dec. 1839. 
Ross. 
9 
24 
0 
00 
9 
24 
At seaf. 
—26 
37 
333 
26 
Dec. 1839. 
Ross. 
8 
02 
0 
00 
8 
02 
At seaf. 
-27 
04 
334 
14 
Dec. 1839. 
Ro.ss. 
10 
04 
0 
00 
10 
04 
At seaf. 
-27 
40 
335 
06 
Dec. 1839. 
Ross. 
9 
37 
0 
00 
9 
37 
At seaf. 
-25 
30 
335 
20 
Dec. 1839. 
Ross. 
10 
35 
0 
00 
10 
35 
At seaf. 
—26 
55 
335 
21 
Dec. 1839. 
Ross. 
9 
48 
0 
00 
9 
48 
At seaf. 
-25 
45 
335 
43 
Dec. 1839. 
Ross. 
10 
22 
0 
00 
10 
22 
At seaf. 
—26 
51 
337 
11 
Dec. 1839. 
Ross. 
11 
10 
0 
00 
11 
10 
At seaf. 
-27 
44 
338 
36 
Dec. 1839. 
Ross. 
12 
00 
0 
00 
12 
00 
At seaf. 
— 28 
15 
340 
08 
Jan. 1840. 
Ross. 
13 
23 
0 
00 
13 
23 
At seaf. 
-27 
55 
341 
50 
Jan, 1840. 
Ross. 
13 
13 
0 
00 
13 
13 
At seaf. 
-27 
33 
342 
27 
Jan. 1840. 
Ross. 
'13 
41 
0 
00 
13 
41 
At seaf. 
-25 
48 
342 
55 
Jan. 1840. 
Ross. 
14 
11 
0 
00 
14 
11 
At seaf. 
— 24 
39 
343 
02 
Jan. 1840. 
Ross. 
14 
26 
0 
00 
14 
26 
At seaf. 
-22 
54 
343 
36 
Jan. 1840. 
Ross. 
14 
59 
0 
00 
14 
59 
At seaf. 
—20 
20 
345 
07 
Jan. 1840. 
Ross. 
17 
50 
0 
00 
17 
50 
At seaf. 
—29 
56 
345 
54 
June 1846. 
Berard. 
17 
48 
— 1 
14 
16 
34 
At sea. 
-27 
00 
346 
33 
Jan. 1840. 
Ross. 
17 
53 
0 
00 
17 
53 
At seaf. 
-27 
53 
346 
43 
Jan. 1840. 
Ross. 
18 
30 
0 
00 
18 
30 
At seaf. 
— 26 
10 
347 
18 
Jan. 1840. 
Ross. 
17 
51 
0 
00 
17 
51 
At seaf. 
-25 
23 
347 
49 
Jan. 1840. 
Ross. 
19 
55 
0 
00 
19 
55 
At seaf. 
-28 
48 
348 
14 
Jan. 1840. 
Ross. 
18 
19 
0 
00 
18 
19 
At seaf. 
— 24 
41 
348 
39 
Jan. 1840. 
Ross. 
20 
21 
0 
00 
20 
21 
At seaf. 
— 28 
05 
349 
16 
June 1846. 
Berard. 
19 
56 
— 1 
14 
18 
42 
At sea. ■ 
-29 
58 
350 
52 
Jan. 1840. 
Ross. 
19 
55 
0 
00 
19 
55 
At seaf. 
-23 
32 
351 
04 
Feb. 1840. 
Ross. 
21 
39 
0 
00 
21 
39 
At seaf. 
— 22 
00 
351 
19 
Feb. 1840. 
Ross. 
22 
17 
0 
00 
22 
17 
At seaf. 
— 20 
15 
352 
04 
Feb. 1840. 
Ross. 
23 
12 
0 
00 
23 
12 
At seaf. 
— 20 
51 
2 
38 
May 1839. 
Du Petit- Thouars. 
25 
27 
+ 0 
05 
25 
32 
At sea. 
-22 
17 
4 
36 
June 1836. 
FitzRoy. 
24 
12 
+ 0 
24 
24 
36 
At sea. 
— 22 
56 
5 
06 
June 1836. 
FitzRoy. 
24 
09 
+ 0 
24 
24 
33 
At sea. 
— 25 
54 
7 
28 
April 1839. 
Du Petit-Thouars. 
26 
28 
+ 0 
05 
26 
33 
At sea. 
— 26 
35 
7 
33 
April 1839. 
Du Petit-Thouars. 
26 
28 
+ 0 
05 
26 
33 
At sea. 
-27 
35 
8 
05 
Aug. 1842. 
Jehenne. 
28 
00 
-0 
18 
27 
42 At sea. 
-27 
23 
8 
32 
April 1839. 
Du Petit-Thouars. 
27 
08 
+ 0 
05 
27 
13 At sea. 
-27 
48 
9 
50 
Aug. 1837. 
Vaillant. 
26 
06 
+ 0 
18 
26 
24! At sea. 
— 24 
31 
10 
35 
Aug. 1837. 
Vaillant. 
25 
11 
+ 0 
18 
25 
29 At sea. 
-29 
33 
10 
58 
April 1839. 
Du Petit-Thouars. 
26 
51 
+ 0 
05 
26 
56 At sea. 
—29 
12 
01 
Aug. 1837. 
Vaillant. 
26 
02 
+ 0 
18 
26 
20 At sea. 
Between the latitudes of —30° and — 
40°. 
-38 
44 
297 
45 
1833. 
FitzRoy. 
— 15 
20 
+ 0 
16 
-15 
04 
Argentine Fort. 
-39 
58 
297 
53 
1833. 
FitzRoy. 
— 15 
50 
+ 0 
16 
— 15 
34 
Indian Head. 
-39 
52 
297 
54 
1833. 
FitzRoy. 
— 15 
40 
+ 0 
16 
— 15 
24 
Colorado River. 
-39 
27 
297 
57 
1833. 
FitzRoy. 
— 15 
30 
+ 0 
16 
— 15 
14 
Labyrinth Head. 
-39 
16 
298 
00 
1833. 
FitzRoy. 
— 15 
20 
+ 0 
16 
-15 
04 
Ariadne Island. 
-38 
57 
298 
01 
1833. 
FitzRoy. 
-15 
00 
+ 0 
19 
-14 
41 
Point Johnson. 
-39 
1 1 
298 
06 
1833. 
FitzRoy. 
— 15 
10 
+ 0 
19 
— 14 
51 
Zuraita Island. 
— 38 
59 
298 
20 
1833. 
FitzRoy. 
-14 
50 
+ 0 
19 
— 14 
31 
Mount Hermoso. 
— 38 
57 
298 
42 
Aug. 1833. FitzRoy. 
-15 
10 
+ 0 
20 
-14 
50 
At sea. 
-39 
10 
299 
19 
Aug. 1833. FitzRoy. 
*-15 
07 
+ 0 
26 
— 14 
41 
At sea. 
