28 
LIEUT.- COLONEL SABINE ON TERRESTRIAL MAGNETISM. 
Table X. — General Table of the Results of Captain Belcher’s Magnetic Observations 
on the West Coast of America, and the adjacent Islands. The longitudes in this 
Table are east of Greenwich ; the declinations east ; the values of the horizontal 
intensity are expressed relatively to 1000 at Panama; and the total intensities 
relatively to 1‘372 at London. 
Station. 
Date. 
Latitude. 
Longitude. 
Declination. 
Inclination. 
Intensity. 
Remarks. 
Horizontal. 
Total. 
Port Etches .... 
1837 
+ 60 21 
213 19 
31 38-5 
+ 76 02-9 
411 
1-728 
Kodiack 
1839 
+ 57 20 
207 09 
26 43-5 
+ 72 42-9 
470 
1-603 
Sitka 
1837 
+ 57 03 
224 34 
27 42-0 
+ 75 51*5 
Sitka 
1839 
+ 57 03 
224 38 
29 32-5 
+ 75 49-1 
412 
1-704 
Baker’s Bay .... 
1839 
-t- 46 17 
235 58 
19 11-0 
+ 69 26-9 
569 
1-643 
Fort Vancouver . . 
1839 
+ 45 37 
237 24 
19 22-0 
+ 69 22-2 
576 
1-657 
Port Bodega .... 
1839 
+ 38 18 
236 58 
15 20-0 
+ 62 53-4 
703 
1-563 
San Francisco . . 
1837 
+ 37 48 
237 37 
15 20-0 
+ 6l 53-8 
San Francisco . . 
1839 
+ 37 48 
237 37 
15 20-0 
+ 62 05-8 
711 
1-540 
Monterey 
1839 
+ 36 36 
238 07 
14 13-0 
+ 61 03-6 
731 
1-531 
S ta Barbara .... 
1839 
+ 34 24 
240 19 
13 28-0 
+ 58 54-1 
765 
1-501 
San Pedro 
1839 
+ 33 43 
241 45 
13 08-5 
+ 58 21-4 
766 
1-480 
San Diego 
1839 
+ 32 41 
242 47 
12 20-6 
+ 57 06*1 
794 
1-482 
San Quentin .... 
1839 
+ 30 22 
244 02 
12 06 
+ 54 29-9 
837 
1-461 
San Bartholomew 
1839 
4- 27 40 
245 07 
10 46 
+ 51 41-0 
876 
1 -432 
Magdalena Bay . . 
1839 
+ 24 38 
247 53 
9 15 
+ 46 34-0 
924 
1-362 
Mazatlan 
1839 
+ 23 11 
253 36 
9 24 
+ 46 38-5 
928 
1-370 
San Lucas Bay . . 
1839 
+ 22 52 
250 07 
8 37*5 
+ 45 39-3 
937 
1-359 
San Bias 
1837 
+ 21 32 
254 44 
8 34 
+ 45 24-3 
Palm Island. 
San Bias 
1839 
+ 21 32 
254 44 
9 00 
+ 44 32*5 
958 
1-362 
Beach. 
Oahu Island .... 
1837 
+ 21 17 
202 00 
10 39-5 
4- 41 35-1 
Oahu Island .... 
1839 
+ 21 17 
202 00 
+ 41 16-8 
841 
1-134 
Socorro Island . . 
1839 
+ 18 43 
249 06 
+ 40 43*7 
977 
1-307 
Clarion Island . . 
1839 
+ 18 21 
245 19 
+ 37 03-0 
962 
1*222 
Acapulco 
1838 
+ 16 50 
260 05 
8 23 
+ 37 57-4 
1024 
1-316 
Realejo 
1838 
+ 12 28 
272 48 
7 53-5 
+ 34 36-9 
Panama 
1837 
+ 8 37 
280 31 
+ 31 51-9 
1000 
1-193 
Magnetic Island. . 
1837 
+ 8 04 
278 15 
7 37-5 
+ 31 11-9 
Cocos Island .... 
1838 
+ 5 53 
272 58 
8 24 
+ 23 33-2 
Cocos Island .... 
1839 
+ 5 53 
272 58 
+ 22 55*7 
1022 
1-125 
Puna Island .... 
1838 
- 2 47 
280 05 
8 56 
+ 9 08 
998 
1-024 
Martins Island . . 
1840 
— 8 56 
220 20 
- 14 06-0 
980 
1-024 
Callao 
1838 
— 12 04 
282 52 
— 6 14-3 
950 
0-968 
Bow Island 
1840 
— 18 05 
219 07 
- 30 16-0 
957 
1-123 
The declination was observed by Captain Belcher at Socorro, Clarion, Martin, and Bow Islands, but the 
record of the observations has not yet been sent home : an early opportunity will be taken of supplying this 
deficiency in the Table when the observations shall have been received. 
