398 THE DEPTHS OF THE SEA. 
[CHAP. VIII. 
may reach 30° C., at the greatest depths both in the 
Atlantic and in the Pacific the temperature is not 
higher than from 2° to 4° C., sometimes falling at 
great depths to 0° C. I quote from Mr. Prestwich’s 
able presidential address to the Geological Society 
for the year 1871, a table of the most important of 
these earlier observations in the Atlantic and the 
Pacifie :'— 
TEMPERATURES OF THE ATLANTIC. 
Temperature. | | 
: Depth | 
Latitude. Longitude. in ; Observer and Date. | 
| Faths. | surface. | Bottom. | 
42° o'N. | 34°40’ W.| 780 | 16°7°C.| 6°6°C.| Chevalier . 1837 
29 0 3450 | 1400 | 24-4 6'1 ‘ . 1837 
7 21 20 40 | 505 | 26°6 2°2 Lenz . . 1832 
4 25 26 6 | 1006 | 27°0 3°2 Tessan « SE 
15 358. 23 14 | 1200 | 25:0 4°1 “ - 1841 ~| 
25 10 7 59 EK. 886 | 19°6 3°0 = . 1841 
29 323 10 57 1051 | 1971 2°0 ~ . 1841 
32 20 4350 | 1074 | 21°6 2°4 Lenz . . 1832 
38 12 54 80 W. | 333 | 168 30 | Tessan - 184i | 
TEMPERATURES OF THE PACIFIC. 
| | 
Temperature. 
Depth | 
Latitude. | Longitude. in | Observer and Date. | 
aoe Surface. Bottom. 
FiOS Niele 4 Bay 957) | ts8e'Ce |) -95°'Cal  essan: , tz | 
98 52 Nicer o 600 | 25°5 50 Beechey . . 1828 
18 5 | 174 10 ANO | QAe7 4°8 =p «~ ) 836 
4 32 134 24W.! 2045 | 97°2 iE, The ‘ Bonite’ 1837 
Fquator. | 179 34 1000 | 30°0 2°5 Kotzebue . 1824 
21 148. | 196 1 916 | 272 |-. 2e Lenz . - 1834 
3 ST | 176 42 E. 782 | 16°4 54 “ > LBS 
1066 13°0 ee Tessan . 1841 
43 47 | 80 6W. 
| 
1 Address delivered at the Anniversary Meeting of the Geological 
Society of London on the 17th of February, 1871, by Joseph Prest- 
wich, F.R.S. Pp. 36, 
37, 
