260 
PROFESS OB EORCHHAMMER ON THE COMPOSITION 
Comparison of water from the surface and the depth of the North Atlantic 
1 
Depth. 
Chlorine. 
Sulphuric 
acid. 
Lime. 
Potash. 
Porcupine. 1 
N. lat. 51° If, W. long. 14° 21' ... 1 
2370 feet 
19-677 
2-343 
0-556 
0-442 
Sp. gr. 1-0270. 
(11-91) 
(2-83) 
(2-24) 
Porcupine, June 25, 1862. 
N. lat. 50° 56', W. long. 12° 6' ... i- 
6000 feet 
19-776 
2-376 
0-610 
0-381 
Sp. gr. 1-0282. J 
(12-01) 
(3-08) 
(1-93) 
Porcupine, June 27> 1862. 
N. lat. 51° 9', W. long. 15° 59' ... >- 
Surface 
19-690 
2-285 
0-577 
0-433 
Sp. gr. 1-0280. J 
Porcupine, July 3, 1862. 1 
N. lat. 52° 9', W. long. 15° 10' ... V 
(11-60) 
(2-93) 
(2-20) 
Surface 
19-706 
2-381 
0-570 
0-367 
Sp. gr. 1-0265. I 
Porcupine, July 3, 1862. 1 
N. lat. 52° 9', W. long. 15° 10' ... 1 
(12-08) 
(2-89) 
(1-86) 
5100 feet 
19-752 
2-297 
0-580 
0-433 
Sp. gr. 1-0280. 1 
(11-73) 
(2-94) 
(2-19) 
Porcupine, Aug. 29, 1862. | 
N. lat. 51° 58', W. long. 12° 47' ... 1 
2400 feet 
19*666 
2-323 
0-611 
0-364 
Sp. gr. 1-0280. J 
(11-811 
(3-11) 
(1-85) 
j 
Surface 
19-645 
2*339 
0-583 
0-335 
Porcupine, August 28, 1862. ( 
(11*91) 
(29-7) 
(1-71) 
N. lat. 52° 40', W. long. 15° 58' ... f 
10,500 feet 
19-758 
2-423 
0-563 
0-325 
(12-26) 
(2-90) 
(1-64) 
Porcupine. 
N. lat. 53° If, W. long. 12° 55' ... 1 
Sp. gr. 1-0280. 
Surface 
19-651 
2-352 
0-557 
0-374 
1200 feet 
19*424 
(11-97) 
2-405 
(12-38) 
(2-83) 
0-559 
(2-83) 
(1-90) 
0-351 
(1-81) 
Porcupine, August 16, 1862. 
N. lat. 55° 32', W. long. 12° 11' ... 1 
Sp. gr. 1-0255. 
Surface 
9780 feet 
19-616 
19-686 
2-359 
(11-99) 
2-330 
0-545 
(2-78) 
0-599 
0-325 
(1-65) 
0-323 
(11-84) 
(3-04) 
(1-64) 
Mean of surface observations 
19-662 
2-342 
0-566 
0-367 
(11-9.1) 
(2-88) 
(1-87) 
Mean of observations from the depth ... 
19*677 
2-357 
0-583 
0-374 
(11-98) 
(2-96) 
(1-90) 
Water from the Red Sea, and from different depths in the Baltic. 
Depth. 
Chlorine. 
Sulphuric 
acid. 
Lime. 
Potash. 
Water from the Red Sea. 
| 
Procured by Mr. Polack of Alexandria 
23-730 
2-889 
0-689 
0-387 
f 
(12-17) 
(2-90) 
(1-63) 
From W T ady Rarandel, upon the Sanai 
23-171 
2-761 
peninsula, taken by Mr. Neergaard ... 
(11-92) 
r 
Surface 
3-256 
0-407 
0-132 
0-056 
(12-50) 
(4-05) 
(1*71) 
108 feet 
3-663 
Baltic. 
240 feet 
3-881 
Water from Svartklubleen, taken by 
300 feet 
3-912 
Messrs. Widegreen and Nystrom | 
510 feet 
3-969 
600 feet 
3-958 
0-565 
0-137 
0-058 
(14-27) 
(3-46) 
(1-47) 
720 feet 
3-960 
1 
1 
948 feet 
3-977 
