180 
GENERAL SIR EDWARD SABINE ON TERRESTRIAL MAGNETISM. 
NORTH EQUATORIAL ZONE II.— Lat. 10° N. to 20° N. (continued). 
Declination. 
Inclination. 
Force in British units. 
Ob-^ 
Correction 
Ob- 
Cor. to 
Ob- 
Cor. to 
Observer 
to Epoch 
Corrected. 
Epoch 
Corrected. 
Epoch 
Corrected. 
1842-5. 
served. 
1842-5. 
served. 
18425. 
o / 
o 
o / 
o 
16 54 w. 
16-9 xv. 
39 27 
39-5 n. 
Bonite. 
Belcher. 
19 48 w. 
19-8 xv. 
Bonite. 
15 35 w. 
15-6 xv. 
Belcher. 
35 23 
35*4 n. 
Belcher. j 
19 04 w. 
19-1 xv. 0 
o 
Denham. 
17 54 w. 
17-9w.} 17 ' 9w - 
40 23 
40-4 j 40-4 n. 
8-55 
| 8-55 
Sabine. 
Owen. 
19 12 w. 
19-2 xv. 
Denham. | 
19 10 xv. 
19-2 xv. 
Denham. 
18 11 xv. 
ISIw:}* 92 - 
Owen. 
20 13 xv. 
Denham, j 
Stations. 
Long. E. 
At sea (2 observations) 12 23 339 10 
At sea 11 53 339 37 
At sea (2 observations) 18 16 339 54 
At sea 10 35 340 26 
At sea 10 55 340 28 
At sea 12 52 340 50 
Gambia Eiver 13 08 343 27 
Guancho. 
Bulama . 
11 40 
11 33 
344 15 
344 21 
11 52 344 23 
1836 
1813 
1836 
1843 
1845 
1846 
1822 
1826 
1846 
1846 
1826 
1846 
Vogel 
A 
MSS. in Magnetic Office, received from L. S. Kamtz. 
NORTH EQUATORIAL ZONE III.— LATITUDE 20° TO 30° N. 
Authorities. 
J Royal Geographical Society’s Journal, vol. xxv. ; and MSS. of the Observer in the Mag- 
1 netic Office. 
D’Hericourt , 
Laplace . . . 
Becquerel. . . 
Haines 
Brown 
Blosseville J 
Schlagintweit Scientific Mission to India and High Asia (Leipzig and London, 1861). 
Eenner ^ 
Grieve .... 
Campbell . . 
Eisher .... 
Boileau ^Schlagintweit’s Scientific Mission as above cited. 
Broun .... 
Hodgson . . 
Gerard .... 
Blosseville J 
Basevi x 
Montgomerie I ® e l >or ^ s Great Trigonometrical Survey of India (Dehra Doon). 
Bonite ] 
Darondeau j Vo » e de la Bonite < P ‘ ris ’ 1842 )' 
-Rfilchfir I Magnetic Office; and Contributions to Terrestrial Magnetism (Sabine in Phi- 
1 losophical Transactions). 
