52 



BJØRN HELLAND-HANSEN AND FRIDTJOF NANSEN. 



M.-N. Kl. 



and 1.30 "^ C, which would be more in accordance with the salinities at 



the Amundsen stations and the Isachsen stations. It seems, however, as 

 if the salinities of the bottom-water have on the whole had a tendency to 

 be somewhat higher at the Belgica stations than at the Amundsen stations 



Fig. 39. Observations of the Bottom-water at 2000 (and 1800) metres, during the Michael 

 Sars Exp. 1900, the Amundsen Exp. 1901, the Belgica Exp. 1905 (at i8od metres), and 



the Isachsen Exp. 1910. 



to the south, and the Isachsen stations to the east (ci". Figs. 39 and 40). 

 Whether this is due to slight differences which really have existed in the 

 sea, or to slight differences in the titrations, cannot be decided. 



From what has been pointed out above, we may possibly draw the 

 conclusion that the bottom-water, when it is formed in the region of 

 Amundsen's stations, has at 2000 metres a temperature of about — 1.30" C. 



