LIEUT.-COLONEL SABINE ON TERRESTRIAL MAGNETISM. 
17 
Table I. (Continued.) 
1839. 
Position. 
Time of day. 
Method employed. 
Deflection 
observed. 
Thermo- 
meter. 
Ship’s head. 
Intensity. 
Lat. 
Long. E 
London 
= 1-000. 
= 1-372. 
Dec. 1 4. 
O / 
-15 4 
330 06 
10 A.M. 
s. 
O 
41 
5 8 
O 
80 
S.S.E. 
•596" 
S. and N. 
58 
17 
•610 
N. 
34 
13 
•600 
> • 599 
•822 
weight 1 grain. 
18 
7 
81 
•591 
weight 2 grains. 
38 
27 
•598_, 
15. 
16 52 
330 27 
9 30 a.m. 
S. 
42 
3 
79 
s. by e. 
•594" 
10 20 A.M. 
S. and N. 
58 
40 
•602 
10 50 a.m. 
N. 
34 
21 
•597 
> -596 
•818 
11 10 a.m. 
weight 1 grain. 
18 
10 
79 
•589 
Noon. 
weight 2 grains. 
38 
30 
•597^ 
16 . 
-19 1 
330 45 
1 0 a.m 
S. 
42 
12 
78 
s. \ E. 
•591" 
to 
N. 
34 
23 
78 
•596 
Noon. 
S. and N. 
59 
1 
78 
•598 
0 15 p.m. 
weight 1 grain. 
18 
7 
78 
•591 
)> *593 
•814 
to 
weight 1 grain. 
18 
14 
78 
•587 
2 30 p.m. 
weight 2 grains. 
38 
47 
78 
•593 
weight 2 grains. 
38 
48 
78 
•593 j 
17. 
Island of Trini- 
10 A.M. 
S. 
42 
5 
80 
f -593" 
dad. 
N. 
34 
34 
80 
Observed 
•592 
-20 31 
330 38 
to 
S. and N. 
59 
1 
80 
> on shore. 
•598 
> *592 
•813 
weight 1 grain. 
18 
14 
80 
| -587 
Noon. 
weight 2 grains. 
38 
42 
80 
L - 5 95, 
18. 
— 21 31 
330 47 
1 0 A.M. 
S. 
42 
3 
78 
s. 
•594^ 
to 
N. 
34 
5 
•603 
Noon. 
S. and N. 
59 
4 
•597 
weight 1 grain. 
18 
6 
79 
•591 
> -596 
•818 
weight 1 grain. 
18 
9 
•590 
weight 2 grains. 
38 
28 
•598 
weight 2 grains. 
38 
27 
•598 J 
— 21 47 
330 50 
5 30 p.m. 
S. 
42 
8 
76 
s. 
•592 
to 
N. 
34 
13 
•600 
> -597 
•819 
7 p.m. 
S. and N. 
58 
55 
•598 ^ 
19- 
-23 8 
330 49 
9 a.m. 
S. 
41 
52 
79 
s. \ w. 
*599" 
weight 1 grain. 
17 
56 
•597 
> *600 
•823 
weight 2 grains. 
37 
37 
•609 
-23 20 
331 0 
6 P.M. 
S. 
41 
58 
76 
S.E. 
•596 
20. 
— 24 16 
331 45 
9 30 a.m 
S. 
41 
16 
77 
s.e. by s. 
•6151 
N. 
34 
8 
77 
•602 
to 
S. and N. 
59 
5 
77 
•597 
S> -604 
00 
10 
Noon. 
weight 1 grain. 
17 
52 
78 
•599 
weight 2 grains. 
37 
34 
78 
•610 J 
— 24 28 
331 57 
6 P.M. 
S. 
41 
48 
76 
f *6or 
N. 
34 
4 
> S.S.E. 
•603 
^ -603 
•828 
S. and N. 
58 
33 
J 
1 
•606 
21. 
-25 38 
332 41 
10 A.M. 
S. 
41 
56 
76 
f -5991 
to 
N. 
34 
16 
76 
•599 
Noon. 
S. and N. 
58 
46 
76 
>s.e. byE.-§ e. 
•603 
0 40 p.m. 
weight 1 grain. 
17 
50 
78 
•600 
> *603 
•828 
1 30 p.m. 
weight 2 grains. 
37 
16 
78 
•614 
-25 42 
332 51 
5 P.M. 
S. 
41 
50 
77 
f -600 
N. 
33 
53 
> S.E. 
•608 
S. and N. 
58 
53 
•602 
22. 
— 26 52 
333 30 
11 A.M. 
S. 
41 
10 
77 
S.S.E. 
-6171 
to 
N. 
33 
43 
•611 
2 P.M. 
S. and N. 
58 
9 
•613 
weight 1 grain. 
17 
44 
78 
•603 
-612 
•839 
weight 1 grain. 
17 
44 
S.S.E. 
•603 
weight 2 grains. 
36 
56 
•618 
weight 2 grains. 
36 
56 
S.S.E. 
•6 18^ 
D 
* 
MDCCCXLH. 
