22 
LIEUT.-COLONEL SABINE ON TERRESTRIAL MAGNETISM. 
Table I. (Continued.) 
1840. 
Position. 
Time of day. 
Method employed. 
Deflection 
O 
£ £ 
53 « 
Intensity. 
observed. 
Ship S ll63.d> 
Lat. 
Long. E. 
London = 1-000. 
= 1-372. 
O * 
li m 
•5971 
Feb. 12. 
— 20 41 
352 0 
S. 
41 56 
77 
s.s.w. 
S and N. 
58 41 
•604 
N. 
34 29 
76 
•594 
| 
Noon. 
weight 1 grain. 
17 28 
76 
s.s.w. •§ w. 
•612 
> *600 
•823 I 
1 12 P.M. 
weight 1 grain. 
17 36 
•607 
1 30 p.m. 
S. 
41 57 
•597 
6 P.M. 
s. 
41 2 
74 
s.w. \ w. 
•597 
—21 1 
351 49 
6 30 p.m. 
s. 
41 4 
72 
s.w. by s. 
•596 j 
13 . 
— 21 52 
351 31 
10 A.M. 
s. 
40 57 
72 
s. by e. 
•599 = ) 
10 30 
s. 
40 57 
75 
•599 
10 45 
11 0 
S. and N. 
N. 
57 34 
34 1 
76 
•599 
•605 
> -599 
•821 
11 30 
S. 
41 0 
77 
s. 
•598 
' 
-22 12 
351 23 
Noon. 
weight 1 grain. 
18 1 
•594 J 
1 0 P.M. 
weight 1 grain. 
18 0 
74 
s. by w. 
•5941 
-22 19 
351 22 
3 0 
S. 
41 4 
74 
•596 
— 22 23 
351 22 
5 0 
s. 
41 11 
74 
•594 
> -596 
•818 
5 20 
s. 
41 5 
•595 
6 30 
s. 
40 56 
73 
•599 J 
14. 
-23 33 
351 10 
7 A.M. 
s. 
40 41 
s.s.w. 
•6041 
8 30 
s. 
40 58 
77 
w. 
•599 
— 23 37 
351 0 
9 30 
s. 
41 0 
•595 
> -599 
•821 
10 0 
S. and N. 
57 45 
•597 
10 40 
N. 
34 12 
•599 J 
— 23 42 
350 44 
Noon. 
weight 1 grain. 
17 56 
•596^ 
1 30 p.m. 
S. 
40 58 
78 
E. 
•599 
-23 47 
350 28 
3 0 
S. 
41 5 
76 
w. 
•595 
-596 
•818 
4 0 
weight 1 grain. 
18 0 
75 
•594 
— 23 51 
350 16 
5 30 
S. 
41 4 
74 
•596 J 
15. 
-24 31 
348 48 
9 A.M. 
S. 
41 7 
77 
W. 
•595^ 
10 
weight 1 grain. 
17 50 
78 
•600 
10 30 
weight 1 grain. 
17 51 
78 
•599 
> -596 
•818 
11 00 
S. 
41 12 
80 
•594 
11 30 
S. 
41 4 
80 
•596 
— 24 36 
348 30 
Noon. 
s. 
41 10 
81 
•595^ 
-24 39 
348 20 
2 30 p.m. 
s. 
41 2 
77 
•597" 
— 24 42 
348 17 
4 0 
weight 1 grain. 
17 45 
74 
•602 
5 20 
weight 1 grain. 
17 45 
75 
•602 
— 24 42 
348 10 
6 0 
S. 
40 59 
75 
•598 
> *598 
•820 
7 0 
s. 
41 12 
74 
•594 
— 25 0 
348 0 
Midnight. 
s. 
41 4 
73 
•596 
0 40 
weight 1 grain. 
17 56 
73 
s.w. 
•596 
16. 
— 25 15 
347 59 
6 A.M. 
weight 1 grain. 
17 31 
72 
•599 
7 
S. 
40 49 
73 
•601 
11 
s. 
40 57 
80 
•599 
y *598 
•820 
11 30 
S. and N. 
58 13 
•591 
| 
— 25 24 
347 49 
Noon. 
N. 
34 9 
•602 
0 30 p.m. 
weight 1 grain. 
17 47 
81 
•602 
1 0 
weigiit 1^ grain. 
27 18 
•602 
1 30 
weight 2 grains. 
38 11 
•601 
> -605 
•829 
— 25 38 
347 41 
6 0 
S. 
40 13 
76 
s.w. by s. 
•613 
6 30 
weight 1 grain. 
17 36 
•607 
17 
-26 8 
347 03 
10 A.M. 
S. 
40 50 
77 
w. 
•601 
10 30 
S. 
41 10 
78 
E. 
•594 
> -602 
•826 
—26 8 
347 03 
5 P.M 
S. 
40 24 
75 
s. by e. 
•609 
J 
18 
— 27 0 
346 33 
10 A.M 
s. 
40 20 
78 
s.s.w. 
•611' 
10 40 
11 20 
S. and N. 
N. 
57 11 
33 19 
•605 
•621 
l -615 
•844 
—27 6 
346 32 
Noon. 
weight 1 grain. 
17 7 
•624, 
1 
