418 
MAGNETIC SURVEY OF A PART OF THE SOUTHERN HEMISPHERE 
Observations of the Magnetic Force. (Continued.) 
Date. 
Lat. 
Long. 
Method 
employed. 
Angle of 
deflec- 
tion. 
Thermo- 
meter. 
Ship’s head. 
Intensity. 
Corre 
Ship’s 
attrac- 
tion. 
ctions. 
Tempe- 
rature. 
1815. 
O 
/ 
Def. N.S. 
O 
/ 
Apr. 
19. 
Swinging the 
45 
01 
59 
N.E. 
1-691 
— •012 
•000 
ship 
for local 
Def. N.S. 
44 
49 
60 
E.N.E. 
1-702 
— •022 
•000 
attraction. 
Def. N.S. 
44 
47 
60 
E. 
1-705 
— •032 
•000 
Def. N.S. 
44 
33 
63 
E.S.E. 
1-723 
— •041 
— 
•001 
Def. N.S. 
44 
20 
63 
S.E. 
1-740 
— •051 
— 
•001 
Def. N.S. 
44 
14 
63 
S.S.E. 
1-748 
-•056 
— 
•001 
Def. N.S. 
44 
11 
63 
S. 
1-751 
-•061 
— 
•001 
23. 
-35 
36 
114 
44 
Def. N. 
23 
57 
64 
N.W. 
1 *686 
-■012 
•000 
Def. S. 
24 
47 
64 
N.W. 
1-722 
— •012 
•000 
Def. N.S. 
45 
00 
64 
N.W. 
1-692 
—012 
— 
•001 
24. 
-34 
16 
113 
01 
Def. N. 
24 
40 
67 
N.w. by n. 
1-643 
-•012 
— 
•001 
Def. S. 
25 
37 
69 
N.w. by n. 
1-674 
-•012 
— 
•001 
Def. N.S. 
45 
37 
70 
n.w. by n. 
1-647 
—012 
— 
•002 
25. 
-32 
32 
111 
36 
Def. N. 
25 
02 
67 
n.w. by N. 
1-623 
—008 
— 
•001 
Def. S. 
26 
17 
69 
n.w. by n. 
1-634 
—008 
— 
•001 
Def. N.S. 
46 
05 
70 
N.w. by N. 
1-612 
—008 
— 
•003 
27. 
-29 
20 
106 
55 
Def. N. 
25 
07 
72 
W.N.W. 
1-619 
— 016 
— 
•002 
Def. S. 
27 
32 
72 
W.N.W. 
1-566 
— 016 
— 
•002 
Def. N.S. 
47 
15 
72 
W.N.W. 
1-531 
— 016 
— 
•004 
28. 
-27 
47 
106 
36 
Def. N. 
27 
17 
68 
N. by w. \ w. 
1-497 
•000 
— 
•001 
Def. S. 
29 
02 
69 
n. by w. \ w. 
1-482 
•000 
— 
•001 
Def. N.S. 
47 
47 
69 
n. by w. \ w. 
1-497 
•000 
— 
•003 
29. 
-26 
00 
105 
11 
Def. N. 
27 
30 
72 
N.W. 
1-486 
—005 
— 
•001 
Def. S. 
29 
10 
74 
N.W. 
1-474 
—005 
— 
•001 
Def. N.S. 
48 
12 
75 
N.W. 
1-471 
—005 
— 
•004 
May 
1. 
—24 
00 
99 
23 
Def. N. 
29 
07 
69 
W. 
1-396 
—021 
— 
•001 
Def. S. 
31 
00 
69 
W. 
1-381 
— 021 
— 
■001 
Def. N.S. 
49 
30 
70 
w. 
1-393 
— 021 
— 
•003 
2. 
—24 
01 
97 
30 
Def. N. 
29 
02 
70 
W. \ N. 
1-410 
—017 
— 
•001 
Def. S. 
30 
50 
71 
w. •§• N. 
1-390 
-•017 
— 
•001 
Def. N.S. 
49 
32 
71 
W. A N. 
1-392 
—017 
— 
•003 
3. 
-24 
00 
96 
06 
Def. N. 
29 
40 
76 
w. a n . 
1-381 
-•017 
— 
•001 
Def. S. 
31 
02 
76 
W. 1 N. 
1-380 
-•017 
— 
•001 
Def. N.S. 
50 
15 
77 
W. A N . 
1-350 
— 017 
•004 
wt. 1 gr. 
15 
02 
77 
w. i N. 
1-423 
—017 
+ 
•001 
wt. 2 grs. 
31 
47 
76 
W. A N . 
1-380 
—017 
+ 
•001 
wt. 2| grs. 
41 
10 
76 
W. i N. 
1-383 
—017 
+ 
•001 
6. 
-22 
47 
91 
00 
Def. N. 
30 
57 
76 . 
N.W. 
1-320 
+ •008 
— 
•001 
Def. S. 
32 
25 
79 
N.W. 
1-315 
+ •008 
— 
•002 
Def. N.S. 
60 
50 
80 
N.W. 
1-321 
+ •008 
• 
•005 
7. 
-21 
50 
89 
44 
Def. N. 
30 
45 
72 
N.W. 
1-329 
+ •008 
— 
•001 
Def. S. 
32 
15 
74 
N.W. 
1-322 
+ •008 
— 
•001 
Def. N.S. 
51 
10 
75 
N.W. 
1-308 
+ •008 
— 
•004 
8. 
-20 
46 
87 
59 
Def. N. 
31 
45 
75 
n.w. by w. 
1-279 
+ •004 
— 
•001 
Def. S. 
32 
20 
76 
N.w. by w. 
1-318 
+ •004 
— 
•001 
Def. N.S. 
51 
25 
77 
n.w. by w. 
1-292 
+ •004 
— 
•004 
Def. N. 
32 
00 
78 
N.w. by w. 
1-268 
+ •004 
— 
•002 
Def. S. 
32 
37 
77 
n.w. by w. 
1-306 
+ •004 
— 
•001 
Def. N.S. 
51 
27 
77 
n.w. by w. 
1-291 
+ •004 
— 
•004 
9. 
-20 
38 
85 
26 
Def. N. 
31 
42 
77 
w.|n. 
1-286 
— •014 
— 
•001 
Def. S. 
33 
02 
77 
w.| N. 
1-286 
—•014 
— 
•001 
Def. N.S. 
51 
50 
77 
W. \ N. 
1-270 
-•014 
— 
•004 
Corrected 
Intensity. 
> 1-688 
>1-641 
1-679 M-683 
1-680 
1-673 
1-681 
1-688 
1-691 
1-689 
1-674’ 
1-710 
1-679 
1-630' 
1-661 
1-633 
1-614"] 
1-625 > 1-61 3 
1-601 J 
1-601" 
1-548 [>1-553 
1-511 
1-496' 
1-481 
1-494 
1-480" 
1-468 
1-462 
1-374' 
1-359 
1-369 
1-392A 
1-372 >1-379 
1-372 J 
1-363" 
1-362 
1-329 
1-407 
1-364 
1-367 j 
1-327") 
1-321 >1-324 
1-324 J 
1-3361 
1-329 >1-326 
1-312J 
l-282 < 
1-321 
1-292 v j.gg4 
1-270 ? y 
1-309 
1-291 
1*271 ) 
1-271 >1-265 
1-252 J 
>1-490 
>1-470 
>1-367 
1-365 
Remarks. 
Intensity by Def. 
N.S. on shore 
1 * 685 . 
Table unsteady. 
Table unsteady. 
Table unsteady. 
Table steady. 
Very unsteady, 
heavy swell. 
Very unsteady, 
heavy swell. 
Very unsteady, 
much motion. 
Table steady, little 
motion. 
Table steady, no 
swell. 
Very unsteady, 
heavy westerly 
3 well. 
W. BurdOn, Esq., 
R.N., observer. 
Very unsteady, 
heavy swell. 
