410 
MAGNETIC SURVEY OF A PART OF THE SOUTHERN HEMISPHERE 
Observations of the Magnetic Force. (Continued.) 
| Date. 
| 
Lat. 
Long. 
Method 
employed. 
Angle of 
deflec- 
tion. 
Tempera- 
ture. 
Ship’s head. 
Intensity. 
Corret 
Ship’s 
attrac- 
tion. 
itions. 
Tempe- 
rature. 
Corrected 
Intensity. 
Remarks. 
1845. 
Def. N. 
O 
O 
Ap. 
28. 
-27 
35 
106 
32 
33 
30 
75 
N. by w. 
1*467 
+ *002 
-*001 
1*468" 
Def. S. 
37 
36 
76 
N. by w. 
1*532 
+ *002 
-*001 
1*533 
Def. N.S 
53 
30 
76 
n. by w.- 
1*483 
+ *002 
-*006 
1*479 
>1*478 
Unsteady, a heavy 
Mag. N. 
34 
36 
76 
n. by w. 
1*459 
+ *002 
-*002 
1*459 
swell. 
Mag. S. 
39 
06 
76 
n. by w. 
1*451 
+ *002 
— *002 
1*451 J 
29- 
-25 
46 
104 
55 
Def. N. 
33 
47 
68 
N.W. 
1*450 
-•003 
— *001 
1-446 
1-447 
Def. S. 
39 
02 
68 
N.W. 
1*453 
— •003 
-*001 
1*449 
Very unsteady. 
May 
1. 
— 23 
58 
99 
06 
Def. N. 
34 
30 
68 
W. 
1*414 
— •022 
-*001 
1*391 " 
Def. S. 
39 
54 
68 
w. 
1*407 
— •022 
-*001 
1*384 
> 1*381 
Unsteady. 
Def. N.S. 
55 
14 
68 
w. 
1*394 
-•022 
-•003 
1*369 j 
2. 
— 24 
01 
97 
25 
Def. N. 
34 
32 
72 
W. i N. 
1*412 
-019 
-*001 
1-392 
Def. S. 
40 
02 
72 
W. \ N. 
1*402 
-*019 
-*001 
1*382 
>1*381 
Unsteady. 
Def. N.S. 
55 
15 
72 
W. \ N. 
1*394 
-*019 
-*005 
1-370 ^ 
3. 
-23 
50 
95 
56 
Def. N. 
35 
00 
76 
W. i N. 
1*388 
-*019 
-*001 
1*368" 
Def. S. 
40 
16 
76 
W. 1 N. 
1*389 
-*019 
-*001 
1*369 
Def. N.S. 
55 
38 
76 
W. £ N. 
1*378 
-*019 
— •006 
1-353 
Steady. 
wt. 1 gr. 
19 
28 
76 
W. £ N. 
1*419 
-*019 
+ •001 
1*401 
>1*377 
wt. 1|- gr. 
29 
58 
76 
W. £ N. 
1*396 
-*019 
+ •001 
1-378 
wt. 2 ers. 
41 
30 
76 
W. £ N. 
1*413 
-*019 
+ •001 
l*395j 
4. 
-24 
16 
93 
48 
Def. N. 
35 
21 
76 
W.N.W. 
1*371 
-*010 
— •001 
1*360^ 
Def. S. 
41 
05 
76 
W.N.W. 
1*350 
— •010 
-•001 
1*339 
>1-352 
Unsteady. 
Def. N.S. 
55 
45 
76 
W.N.W. 
1*369 
-•010 
-•001 
1’358_ J 
f 
5. 
24 
02 
92 
07 
Def. N. 
35 
51 
73 
N.W. 
1*347 
+ •008 
-•001 
1*354] 
Cross sea, much 
Def. S. 
40 
37 
73 
N.W. 
1*373 
+ •008 
— •001 
1*380 j 
> 1 OO/ 
rolling motion. 
7. 
-21 
44 
89 
38 
Def. N. 
36 
30 
73 
N.W. £ W. 
1*316 
+ •004 
— •001 
1*319" 
Def. S. 
42 
13 
73 
N.W. £ W. 
1*298 
+ *004 
-•001 
1-301 
>1-314 
Table unsteady. 
Def. N.S. 
56 
45 
73 
N.W. £ W. 
1*322 
+ *004 
-•005 
1*321^ 
8. 
-20 
38 
87 
50 
Def. N. 
36 
39 
77 
N.W. £ W. 
1*309 
+ *004 
-•001 
1*312" 
Def. S. 
42 
49 
77 
N.W. £ W. 
1*270 
+ •004 
-•001 
1-273 
>1-298 
Unsteady. 
Def. N.S. 
56 
58 
77 
N.W. £ W. 
1*312 
+ *004 
-•006 
1*310 
f 
9. 
-20 
37 
85 
02 
Def. N. 
36 
56 
77 
AV. £ N. 
1*295 
— 015 
-•001 
1-279D 
Def. S. 
42 
49 
77 
W. £ N. 
1*270 
— 015 
-•001 
1-254 
>1-263 
Heavy swell. 
Def. N.S. 
57 
46 
77 
W. £ N. 
1*276 
— *015 
-•006 
1*255 
f 
10. 
— 20 
25 
82 
10 
Def. N. 
37 
46 
77 
W. £ N. 
1*260 
— *012 
-•001 
1*247“" 
Def. S. 
42 
48 
76 
W. £ N. 
1*270 
— *012 
— •001 
1-257 
Def. N.S. 
57 
46 
76 
W. £ N. 
1*276 
—*012 
-•006 
1-258 
QO 
q* 
p-H 
Heavy swell. 
Mag. N. 
38 
04 
76 
W. £ N. 
1*256 
— *012 
-•001 
1*243 
Mag. S. 
42 
13 
76 
W. £ N. 
1*249 
-*012 
— •001 
1-236 
11. 
-20 
36 
79 
10 
Def. N. 
39 
00 
78 
W. £ N. 
1*207 
— *012 
— •001 
1-194) 
Def. S. 
43 
29 
78 
W. £ N. 
1*239 
-*012 
-•001 
1-226 
Unsteady. 
Def. N.S. 
58 
28 
78 
W. £ N. 
1*247 
— *012 
-•007 
1-228 
>1*213 
Mag. S. 
42 
44 
78 
AV. £ N. 
1*220 
-*012 
-•002 
1-206j 
12. 
—20 
44 
78 
31 
Def. N. 
37 
23 
87 
s. 
1*275 
— 040 
- 002 
1*233" 
Def. N. 
37 
12 
87 
S.S.AV. 
1*283 
— •036 
-•002 
1-245 
Def. N. 
37 
14 
87 
S.W. 
1*282 
—•032 
-•002 
1-248 
Def. N. 
38 
13 
87 
AV.S.AV. 
1*241 
— 023 
— •002 
1-216 
Def. N. 
38 
28 
87 
w. 
1*229 
-•016 
— •002 
1-211 
These* observations 
Def. N. 
Def. N. 
38 
37 
27 
47 
87 
86 
W.N.W. 
N.W. 
1*230 
1*258 
-•007 
-•001 
-•002 
— •002 
1*221 
1-255 
>1-234 
were made to de- 
termine the effect 
of the ship’s iron 
Def. N. 
38 
14 
84 
N.N.W. 
1*240 
•000 
-•002 
1-238 
at sea. 
Def. N. 
38 
11 
80 
N. 
1*242 
+ *002 
-•001 
1*243 
Def. N. 
38 
28 
78 
N.N.E. 
1*229 
•000 
-•001 
1*228 
Def. N. 
38 
17 
78 
N.E. 
1*236 
— •001 
-•001 
1-234 
Def. N. 
38 
00 
78 
E.N.E. 
1*249 
-*007 
-•001 
1*241 J 
