EXPLOEATIONS, WESTERN ATLANTIC, STEAMER BACHE, 1914. 21 



Bermuda, over a roughly oval area with slightly colder (15°) water on 

 the east, south, west, and, probably, on the north also. South of 

 Bermuda the temperature was below 15°. And it was even colder 

 (12°) off the Bahama Bank, falling to 10° in the northeast Providence 

 Channel, and probably all along the continental slope, with a tem- 

 perature of only about 5° off Chesapeake Bay at this level. The 

 extension of a tongue of 12° northward from the Bahama Bank 

 suggests that part of the cold water, which is banked up against the 

 latter, is drawn here into the general northerly drift of the Antilles 



CAPE HATTERA- 



BERMyOA 



Fig. 17.— Temperatures at 200 meters. 



current; but apparently the cold water at station 10185 was the 

 result of local upwelling, not of a cold band. 



The distribution of salinities at 600 meters (fig. 19) suggests, 

 although it does not parallel, the temperature, the water being saltest 

 (over 36.P/oo) west of Bermuda, where the curve of 36*^/00 incloses 

 a roughly oval area, which was probably limited by water of lower 

 salinity on the north, as it certainly was on the east, south, and 

 west. The low salinity of station 10185 is as clearly a local phenome- 

 non, as is its low temperature. Over the southwestern part of the 

 area in general the salinity was very uniform (36-36. 08°/oo) ; but 



