38 
LIEUT.-COLONEL SABINE ON TERRESTRIAL MAGNETISM 
Table IV. 
Observations of the Magnetic Intensity on Shore and on Board Her Majesty’s Ship 
Erebus, with Needle F 1, between the Cape of Good Hope and Kerguelen Island. 
Position. 
Dpfltfftion 
o .* 
Ship’s head. 
Intensity. 
1 
1840. 
Time of day. 
Method employed. 
observed. 
Qj <U 
Lat. 
Lon 
5 . E. 
H ^ 
London = l'OOO. 
= 1-372. 
April 3. 
O 
-34 
/ 
11 
O 
18 
26 
h 
m 
s. 
o 
35 
35 
o 
72 
w. 
•717 
•984 
7- 
-35 
14 
18 
27 
11 
40 A.M. 
s. 
35 
23 
71-5 
s. by e. 
•723 
•992 
8. 
-35 
48 
18 
47 
10 
A.M. 
s. 
35 
1M 
70 
E.S.E. 
•728' 
•999 
10 
45 
s. 
35 
12 
70 
w. by s. 
•728 
> 
9- 
-36 
4 
19 
19 
10 
A.M. 
s. 
35 
29-3 
66-5 
•720 
•988 
10. 
-36 
11 
20 
42 
9 
40 A.M. 
s. 
35 
0-7 
66-5 
S.E. bv s. 
•733 
1-005 
11. 
10 
15 A.M. 
s. 
34 
36-2 
66-5 
•745" 
10 
40 A.M. 
S. and N. 
49 
24-4 
66-5 
11 
11 
0 A.M. 
30 A.M. 
N. 
weight 1 grain. 
28 
14 
54-5 
16-2 
66-5 
71 
•744 
> -742 
1-018 
11. 
-36 
35 
21 
20 
Noon. 
weight 1^. grain. 
22 
10-2 
71 
> s. < 
•731 
0 
30 P.M. 
weight 2 grains. 
29 
40-0 
71 
•750 J 
12. 
-37 
19 
21 
37 
10 
30 A.M. 
S. 
33 
48-8 
72-5 
•769 1 
11 
A.M. 
s. 
33 
21 
72-5 
•784 
> -770 
1-057 
11 
40 
weight 1 grain. 
13 
54-2 
72-5 
•763 
12. 
-37 
20 
21 
37 
2 
15 P.M. 
S. 
33 
53-1 
72 
•766 J 
13. 
-38 
13 
21 
30 
10 
40 A.M. 
s. 
34 
0-7 
W.S.W. 
•763 
1-047 
14. 
-40 
5 
20 
38 
s. 
34 
25-5 
62 
S.S.E. 
•750 
1-029 
15. 
-40 
29 
22 
22 
11 
30 A.M. 
s. 
33 
5-5 
68-5 
s.e. by s. 
•792 
1-087 
16. 
-41 
24 
25 
0 
9 
30 A.M. 
s. 
33 
29-1 
56 
s.e. by s. 
•780 
1-071 
10 
10 A.M. 
S. and N. 
47 
59-5 
56 
10 
50 A.M. 
N. 
27 
32-5 
56 
17- 
-41 
58 
26 
38 
9 
20 A.M. 
S. 
32 
52*7 
61*5 
S.S.E. 
•799 
1-096 
18. 
-43 
7 
28 
43 
10 
A.M. 
S. 
32 
33-2 
60 
S.S.E. 
•810"] 
10 
30 A.M. 
S. and N. 
47 
9 
60 
10 
11 
40 A.M. 
0 A.M. 
N. 
weight 1 grain. 
26 
12 
48 
44-3 
60 
59 
•830 
> -832 
1-142 
11 
20 A.M. 
weight 1| grain. 
18? 6-5* 
59 
•841 
11 
45 A.M. 
weight 2 grains. 
25 
53-3 
59 
•849 J 
19- 
-44 
19 
31 
6 
11 
30 A.M. 
S. 
31 
58-6 
59 
S.S.E. 
•830 
M39 
20. 
— 45 
44 
34 
16 
11 
15 A.M. 
S. 
31 
11 
48-5 
•859 
1-179 
21. 
-47 
00 
37 
14 
s. 
30 
56-2 
45 
s.e. by e. 
•868 
1*191 
22. 
-47 
00 
38 
48 
6 
30 A.M. 
s. 
31 
15-6 
44 
•856 
1-175 
23. 
-46 
46 
42 
41 
9 
45 A.M. 
s. 
30 
3-4 
•902 
1-237 
24. 
-47 
1 
46 
10 
s. 
29 
23 
45 
S.E. ■§ E. 
•929 
1-275 
26. 
-46 
41 
50 
52 
11 
20 A.M. 
s. 
29 
10-7 
44 
s.e. by s. 
•937 
1-285 
28. 
-46 
28 
52 
43 
Noon. 
s. 
29 
6-2 
44 
w.s.w. 
•941 
1-290 
29. 
-46 
29 
52 
26 
1 
30 p.m. 
s. 
28 
36-7 
43 
s.w. by w. 
•962 
1-319 
30. 
-46 
18 
52 
4 
11 
30 A.M. 
s. 
28 
20-5 
s.s.w. 
•974 
1-336 
May 1. 
-46 
25 
52 
1 
10 
30 A.M. 
s. 
28 
25 
45 
s. by e. i e. 
•970 
1-331 
11 
0 A.M. 
S. and N. 
42 
36-2 
11 
30 A.M. 
N. 
21 
49 
Noon. 
weight 1 grain. 
11 
13-3 
•939f 
2. 
-46 
57 
55 
39 
10 
15 A.M. 
S. 
28 
23 
47 
S.E. 
•972 
1-333 
3. 
-47 
19 
59 
10 
10 
30 A.M. 
S. 
27 
33-5 
40 
1-009 
1-384 
10 
50 A.M. 
S. and N. 
42 
0-5 
11 
10 A.M. 
N. 
21 
36 
4. 
-47 
41 
62 
59 
9 
40 A.M. 
S. 
26 
22*5 
43 
1-068 
1-466 
7- 
-48 
36 
69 
21 
Noon. 
s. 
26 
7-5 
N.N.W. 
1-082 
1-485 
8. 
-48 
36 
69 
7 
s. 
25 
54*7 
39 
s.w. by s. 
1-091 
1-497 
11. 
-48 
30 
69 
52 
9 
30 A.M. 
s. 
25 
49-5 
s.w. by w. w. 
1-095 
1-502 
12. 
-48 
39 
68 
57 
11 
30 A.M. 
s. 
26 
19-2 
N. 
1-070 f i.nsc; 
moo; 1085 
1-488 
0 
30 P.M. 
s. 
25 
45-5 
s.w. by w. i w. 
* 18° is probably an error of transcription, and should be 19°; the result of 18° 06' - 5 would be ’885 ; that 
of 19° 06'5 is ‘841, as entered in the Table, 
t Omitted in the mean. 
