LINES OF MAGNETIC DECLINATION IN THE ATLANTIC. 
227 
Table XII. (Continued.) 
Lat. 
Long. 
Date. 
Observer. 
Observed 
Declina- 
tion. 
Correc- 
tion for 
Epoch. 
Corrected 
Declina- 
tion. 
Remarks. 
Between the latitudes of — 
-30 
° and 
— 40° (continued). 
-35 
26 
O 
15 
08 
Jan. 1845, 
Moore and Clerk. 
28 
39 
0 
— 0 
30 
28 
09 
At seaf. 
— 32 57 
15 
27 
Aug. 1842. 
Jehenne. 
31 
16 
-0 
16 
31 
00 
At sea. 
— 32 
23 
15 
52 
Mar. 1840. 
Ross. 
29 
23 
-0 
02 
29 
21 
At seaf. 
— 33 
45 
15 
52 
Aug. 1837. 
Vaillant. 
28 
43 
-f- 0 
18 
29 
01 
At sea. 
— 32 
03 
15 
53 
Aug. 1837. 
Vaillant. 
27 
16 
+ 0 
18 
27 
34 
At sea. 
—33 
28 
15 
58 
April 1843. 
Du Petit-Thouars. 
26 
37 
+ 0 
04 
26 
41 
At sea. 
-39 
11 
15 
59 
Mar. 1843. 
Ross. 
28 
22 
-0 
21 
28 
01 
At seaf. 
—39 52 
16 
04 
Mar. 1843. 
Crozier. 
26 
38 
-0 
21 
26 
17 
At seaf. 
—35 
59 
16 
22 
Mar. 1 843. 
Crozier. 
27 
50 
-0 
21 
27 
29 
At seaf. 
— 38 
26 
16 
39 
April 1843. 
Ross. 
29 
24 
-0 
21 
29 
03 
At seaf. 
-35 
42 
16 
44 
April 1843. 
Crozier. 
27 
11 
-0 
21 
26 
50 
At seaf. 
— 32 49 
16 
53 
Mar. 1840. 
Ross. 
29 
29 
-0 
02 
29 
27 
At seaf. 
-32 
33 
16 
55 
Mar. 1840. 
Ross. 
29 
25 
-0 
02 
29 
23 
At seaf. 
-33 
21 
17 
07 
Mar. 1840. 
Ross. 
29 
34 
-0 
02 
29 
32 
At seaf. 
-32 59 
17 
08 
Mar. 1840. 
Ross. 
29 
46 
— 0 
02 
29 
44 
At seaf. 
— 34 
42 
17 
36 
Jan. 1845. 
Moore and Clerk. 
29 
51 
— 0 
32 
29 
19 
At seaf. 
— 34 37 
17 
51 
Mar. 1840. 
Ross. 
30 
10 
— 0 
02 
30 
08 
At seaf. 
-34 
38 
17 
59 
Aprill839. 
Du Petit-Thouars. 
27 
45 
+ 0 
04 
27 
49 
At sea. 
— 34 
18 
18 
03 
Mar. 1840. 
Ross. 
29 
33 
-0 
02 
29 
31 
At seaf. 
-34 
12 
18 
26 
1840. 
Ross. 
29 
04 
-0 
02 
29 
02 
At seaf. 
— 34 
11 
18 
27 
April 1839. 
Du Petit-Thouars. 
29 
09 
+ 0 
04 
29 
13 
False ]3ay. 
— 33 56 
18 
29 
1841. 
Magnetic Obseryy. 
29 
07 
0 
00 
29 
07 
Cape of Good Hope. 
-34 
18 
18 
41 
Mar. 1830. 
Du Petit-Thouars. 
29 
38 
+ 0 
04 
29 
42 
At sea. 
Between the latitudes of —40° and — 
50*^ 
-49 
39 
292 
05 
Aprill834. 
FitzRoy. 
—20 
18 
+ 0 
14 
-20 
04 
At sea. 
-49 
14 
292 
15 
1833. 
RitzRoy. 
—21 
10 
+ 0 
16 
— 20 
54 
Wood Mount. 
-49 
15 
292 
18 
1833. 
FitzRoy. 
-21 
00 
+ 0 
16 
— 20 
44 
Sholl Point. 
-49 
11 
292 
23 
1833. 
FitzRoy. 
—21 
00 
+ 0 
16 
-20 
44 
Port San Julian. 
-49 
14 
292 
24 
1833. 
FitzRoy. 
-21 
00 
+ 0 
16 
— 20 
44 
Desengano. 
—45 
57 
292 
26 
1 833. 
FitzRoy. 
-19 
42 
+0 
16 
-19 
26 
Point Marques. 
— 48 
10 
292 
30 
Jan. 1834. 
FitzRoy. 
— 20 
50 
+0 
15 
— 20 
35 
At sea. 
-46 
31 
292 
37 
1833. 
FitzRoy. 
-19 
40 
+ 0 
16 
-19 
24 
Murphy Head. 
-45 
46 
292 
38 
1833. 
FitzRoy. 
-19 
40 
+ 0 
16 
-19 
24 
Cordova Head. 
-48 
47 
292 
45 
Jan. 1834. 
FitzRoy. 
— 21 
28 
+ 0 
15 
-21 
13 
At sea. 
-49 
10 
292 
45 
Jan. 1834. 
FitzRoy. 
-19 
47 
+ 0 
15 
-19 
32 
At sea. 
-46 
41 
292 
50 
1833. 
FitzRoy. 
— 20 
00 
+ 0 
16 
-19 
44 
Bauza Head. 
-48 
35 
293 
07 
1833. 
FitzRoy. 
—21 
00 
+ 0 
16 
-20 
44 
Lookout Point. 
— 45 
10 
293 
28 
1833. 
FitzRoy. 
-19 
30 
+ 0 
16 
-19 
14 
Malaspina Cove. 
-47 
49 
293 
37 
1833. 
FitzRoy. 
—20 
20 
+0 
16 
—20 
04 
Head of Port Desire. 
-48 
21 
293 
39 
1833. 
FitzRoy. 
-20 
00 
+ 0 
16 
-19 
44 
Watchman Cape. 
-48 
29 
293 
48 
1833. 
FitzRoy. 
— 21 
00 
+ 0 
16 
— 20 
44 
Bellaco Rock. 
-48 
23 
293 
50 
Jan. 1834. 
FitzRoy. 
-19 
43 
+ 0 
15 
-19 
28 
At sea. 
-47 45 
294 
00 
Jan. 1834. 
FitzRoy. 
-20 
30 
+ 0 
15 
— 20 
15 
At sea. 
-48 
45 
294 
00 
Jan. 1834. 
FitzRoy. 
-18 
22 
+ 0 
15 
-18 
07 
At sea. 
— 47 45 
294 
08 
Jan. 1834. 
FitzRov. 
-19 
57 
+ 0 
15 
-19 
42 
Port Desire. 
-47 
06 
294 
09 
1833. 
FitzRoy. 
-19 
20 
+ 0 
17 
-19 
03 
Cape Three Points. 
-45 
04 
294 
12 
1833. 
FitzRoy. 
-19 
20 
+ 0 
17 
-19 
03 
Melo Port. 
-47 57 
294 
14 
1833. 
FitzRoy. 
— 20 
50 
+ 0 
17 
— 20 
33 
Sea-Bear Bay. 
-47 
12 
294 
17 
1833. 
FitzRoy. 
-19 
30 
+ 0 
17 
-19 
13 
Cape Blanco. 
-45 
04 
294 
19 
1833. 
FitzRoy. 
-19 
00 
+ 0 
17 
-18 
43 
South Cape. 
— 44 
56 
294 
28 
1833. 
FitzRoy. 
-19 
00 
+ 0 
17 
-18 
43 
Blanco Islet. 
-44 
31 
294 
38 
1833. 
FitzRoy. 
-19 
08 
+ 0 
17 
-18 
51 
Santa Elena. 
-43 
47 
294 
43 
1833. 
FitzRoy. 
-18 
30 
+ 0 
17 
-18 
13 
Lobos Head. 
-49 
47 
294 
44 
April 1834. 
FitzRoy. 
— 22 
50 
+0 
15 
-22 
35|At sea. 
