16 EXPLORATIONS^ WESTERN ATLANTIC, STEAMER BACHE, 1914. 



further evidence of the banking up of abyssal water, and of water 

 from the middepths, against the slope. The curves show that the 

 salinity was rather higher in the middle of the profile than either 

 farther west or farther east, instead of lower, hke the temperature; 

 but on the slope of the Bermudas sahnity, like temperature, sug- 

 gests a shght upweUing of abyssal water — i. e., it is only in the mid- 

 layers that salinity and temperature fail to agree. Below about 



Meter 



100 



200 



300 



400 



500 



600 



700 



800 



900 

 1000 

 1100 

 1200 

 1300 

 1400 

 1500 

 1600 

 1700 

 1800 



Fig. 10.— Salinity sections east of the Bahama Bank; stations 10193, 10210, 10212, and down to 1,800 meters 

 in the northeast Providence Channel, station 10196. 



1,800 meters abyssal water with practically uniform salinity (84.9°/oo) 

 was encountered. 



The upper layers of water were colder over the southern slope of 

 the Bermuda Bank (station 10179, fig. 13) than over the northern 

 (station 10177, fig. 11), the difference being greatest (3°) at 1,200 

 meters; but below 1,400 meters the northern slope was the coldest. 

 Along the line running southwest from Bermuda (fig. 13) the 

 surface layers grew gradually warmer toward the south, the curve 

 for 15° dipping from 550 to 700 meters, while near the surface the 



