188 GENERAL SIR EDWARD SABINE ON TERRESTRIAL MAGNETISM. 
NORTH EQUATORIAL ZONE III.— Lat. 20 N. to 30° N. (continued). 
Stations. 
Lat. N. 
Long. E. 
Date. 
Declination. 
Inclination. 
Force in British units. 
Observers 
Ob- 
served. 
Correction 
to Epoch 
1842-5. 
Corrected. 
Ob- 
served 
Cor. to 
[Epoch 
1842-5. 
Corr 
ected. 
Ob- 
served. 
Cor. to 
Epoch 
1842-5. 
Corrected. 
° / 
o / 
o / 
o 
o , 
o 
At sea (2 observations) 
29 31 
343 39 
1832 
20 44 w. 
20-7 w. 
FitzEoy. 
At sea (2 observations) 
28 16 
343 42 
1832 
20 22 w. 
20-4 w. 
FitzEoy. 
1822 
21 00 w. 
21 0 w.) 
57 06 
57-1) 
9-46 
Duperrey. 
1826 
22 37 w. 
22-6 w. 
Dumont d’ L r 
1<\ 
1836 
57 28 
57-5 
Bethune. 
1837 
22 50 w. 
22-8 w. 
o 
° 
Vidal. 
Santa Cruz. . # 
28 28 
343 45 \ 
1837 
21*7 w. 
57 47 
57-8 
► 57*4 n. 
9-56 
- 9-45 
Wickham. 
1838 
57 21 
57-4 
Stanley. 
1838 
57 40 
57-7 
939 
Sulivan. ' 
1840 
20 31 w. 
20-5 w. 
57 05 
571 
9-41 
Eoss. 
1842 
) 
57 17 
57’3 j 
Blackwood, j 
At sea 
28 43 
344 38 
1837 
1 20 38 v. 
20-6 w. 
Dumoulin. 
At sea 
29 15 
345 15 
1842 
! 22 00 w. 
22 0 w. 
Berard. 
At sea (2 observations) 
28 17 
345 20 
1836 
21 53 w. 
21-9 w. 
Bonite. 
At sea 
345 30 
1822 
| 21 00 w. 
1 ■ i i 
21-0 w. 
. 
57 40 
j 
577 n. ' 
Duperrey. j 
NORTH EQUATORIAL ZONE IV.— LATITUDE 30° TO 40° N. 
Authorities . 
^ ^ J MSS. in the Magnetic Office, communicated by Admiral Duperrey ; and for a few 
\ land stations, MSS. in the Magnetic Office, communicated by Professor L. S. Kamtz. 
Airne Exploration Seientifique de l’Algerie (Paris, 1845). 
Norwegian Officers Hansteen, Mag. Beob. (Christiania, 1863). 
Novara (Austrian Frigate) Reise um die Erde (Wien, 1862—65). 
Beechey, Fisher, Smith, l _ _ _ , ' 
I L. S. Kamtz, MSS. 
and Caiigny J 
Shadwell . MSS. in the British Hydrographic Office. 
Schaub Mag. Beob. von Dr. F. Schaub (Triest, 1858). 
D’Abbadie, D’Hericourt, -i 
Estconrt, Rawlinson, v L. S. Kamtz, MSS. 
Parrot, and Freycinet . J 
Ivatinsk 
Lenz 
Schlagintweit 
Cunningham 
Walker and Basevi 
Fuss, G. von Kowanko, 1 
and Schatskoff J 
Basil Hall 
Collinson, Richards, ) 
Crane, and Kellett . . j 
Erman 
Survey of the Caspian Sea, St. Petersburg, 1870 (in the Russian Language). 
Petermann, Mittheilungen, 1870 (Gotha). 
. Scientific Mission to India and High Asia (Leipzig and London). 
In Sehlagintweit’s Scientific Mission. 
Reports of the Great Trigonometrical Survey of India. 
Mem. by Fritsche in Wild’s Repertorium for 1870, Band I. Heft 2. 
, In Kamtz MSS., above cited. 
MSS. in the British Hydrographic Office. 
. Reise um die Erde (Berlin, 1841). 
