126 
LIEUT.-COLONEL SABINE ON TERRESTRIAL MAGNETISM. 
Table I. — Part II. 
Abstract of Observations with the Intensity Needles between March 1839 and April 
1840 ; in these observations the commencing - semi-arc was 20°. 
| Station. 
1839. 
Needle. 
No. of 
observa- 
tions. 
Time 
)f vibra- 
tion. 
Thermo- 
meter. 
chronometer 
rate. 
Final 
serai-arc. 
Corrected 
time, 
75°Fahb. 
lorizontal Intensity. 
March ]6. 
5 
2 
s 
472-45 
O 
85 
s 
L. 2-1 
o 
7-5 
s 
470-2 
7-7311 
16. 
6 
3 
522-80 
87 
L. 2-1 
6-2 
519-7 
16. 
7 
3 
534-53 
85 
L. 2-1 
2-0 
533-6 
7-727 
Panama 
< 
16. 
16. 
8 
9 
3 
3 
469-30 
436-85 
87 
83 
L. 2-1 
L. 2-1 
2-5 
2-7 
468-5 
436-2 
7-763 
>7-743 
16. 
11 
1 
473-26 
87 
L. 2-1 
2-5 
472-2 
7-745 
16. 
12 
1 
403-22 
87 
L. 2-1 
3-5 
402-4 
7-726 
16. 
13 
1 
393-24 
88 
L. 2-1 
3-5 
392-2 
7-768 J 
April 8. 
5 
2 
466-68 
82 
L. 2-5 
5-7 
465-0 
7-9071 
8. 
6 
2 
514-77 
81 
L. 2-5 
7-0 
512-3 
Cocos Island . . 
< 
8. 
11 
2 
465-68 
78 
L. 2-5 
3-0 
465-0 
7-988 
>7-924 
8. 
12 
2 
397-43 
77 
L. 2-5 
3-0 
396-9 
7-939 
8. 
13 
2 
390-00 
78 
L. 2-5 
3-7 
389-3 
7-864 j 
June 4-9. 
5 
4 
513-89 
87 
L. 1-3 
5-7 
511-4 
6-5361 
5-9. 
6 
4 
575-77 
86 
L. 1-3 
5-0 
572-6 
Oahu 
< 
8. 
11 
2 
515-65 
83 
L. 1-3 
2-2 
514-7 
6-518 
>6-506 
8. 
12 
2 
439-60 
87 
L. 1-3 
4-0 
438-6 
6-503 
8. 
13 
2 
430-55 
87 
L. 1-3 
4-2 
429-3 
6-467 J 
Kodiack 
July 7. 
5 
1 
688-46 
79 
L. 2-0 
1-5 
687-5 
3-617 
3-635 
l 
7. 
6 
1 
765-08 
80 
L. 2-0 
1-0 
763-6 
3-653 
r 
18. 
5 
1 
730-30 
61 
L. 0-4 
4-0 
731-4 
3-1951 
18. 
6 
1 
811-20 
56 
L. 0-4 
5-0 
814-6 
Sitka 
i 
18. 
11 
1 
730-40 
62 
L. 0-4 
1-5 
730-9 
3-231 
^■3-207 
18. 
12 
1 
624-00 
64 
L. 0-4 
1-5 
624-1 
3-211 
18. 
13 
1 
611-20 
67 
L. 0-4 
1-5 
611-4 
3-189 J 
/■ 
August 11-13. 
7 
3 
767-35 
64 
L. 2-0 
0-8 
767-0 
3-742" 
Woolwich . . . . 
< 
11-13. 
8 
3 
671-17 
66 
L. 2-0 
0-8 
670-9 
? 3-746 
l 
11-13. 
9 
3 
627-38 
63 
L. 2-0 
1-0 
627-6 
3-750, 
13. 
5 
7 
617-87 
66 
G. 8-5 
3-5 
6182 
4-474'" 
13. 
6 
5 
691-60 
66 
G. 8-5 
2-5 
692-9 
Fort Vancouver 
< 
13. 
11 
1 
620-67 
56 
G. 8-5 
2-0 
621-3 
4-475 
>4-475 
13. 
12 
o 
528-84 
74 
G. 8-5 
2-5 
528-3 
4-482 
13. 
13 
2 
517-05 
74 
G. 8-5 
2-7 
516-5 
4-468_, 
Baker’s Bay . 
September 13. 
13. 
5 
6 
2 
2 
623-40 
698-17 
65 
69 
L. 1-9 
L. 1-9 
3-5 
2-2 
623-9 
698-9 
4-392 
4-396 
► 4-394 
Port Bodega . 
25. 
25. 
5 
6 
1 
1 
560-44 
625-88 
63 
63 
L. 2-7 
L. 2-7 
3-5 
3-0 
561-1 
627-6 
5-429 
5-452 
> 5-440 
30. 
5 
2 
556-98 
73 
L. 3-4 
5-2 
556-1 
5-528' 
San Francisco. 
\ 
30. 
30. 
6 
11 
2 
1 
622-10 
55872 
62 
64 
L. 3-4 
L. 3-4 
5-2 
2-0 
623-4 
558-9 
5-524 
5-529 
>5-524 
1 
30. 
12 
1 
476-36 
62 
L. 3-4 
3-0 
476-3 
5-515, 
1 
Monterey . . . 
j 
October 5 
5 
1 
549-72 
65 
L. 2-9 
4-5 
549-9 
5-652 
1 
5 
6 
1 
613-76 
64 
L. 2-9 
4-0 
615-0 
5-680 
> 5‘obo 
Santa Barbara 
i 
10 
10 
5 
6 
1 
1 
538-90 
602-28 
77 
73 
L. 2-9 
L. 2-9 
5- 0 
6- 0 
537-7 
601-3 
5-912 
5-939 
j> 5-925 
San Pedro . . . 
. 
r 12 
12 
5 
6 
1 
1 
538-44 
602-56 
74 
73 
L. 2-7 
L. 2-7 
3-0 
3-0 
538-0 
602-3 
5-907 
5-920 
| 5-913 
San Diego . . . 
17 
l 17 
5 
6 
1 
1 
528-02 
590-55 
70 
67 
L. 2-7 
L. 2-7 
4-5 
4-0 
527-7 
591-2 
6-140 
6-145 
| 6-142 
San Quentin . 
# 
f 24 
I 24 
5 
6 
1 
1 
515-30 
574-64 
77 
65 
L. 2-7 
L. 2-7 
3- 5 
4- 0 
514-4 
575-6 
6-454 
6-482 
j 6-468 
San Bartholo- 
1 29 
5 
1 
503-28 
73 
L. 2-7 
5-0 
502-6 
6-769 
mew. 
l 29 
6 
1 
562-72 
73 
L. 2-7 
3-5 
562-4 
6-791 
> O*/ oU 
