38 EXPLORATIONS, WESTEKN ATLANTIC, STEAMEE BACHE, 1914. 



for the water immediately north of the Bahamas. But the Blake 

 temperature series taken in 1878 between the Tortugas and Cuba, 

 and on the Cape Florida-Gun Cay line, reveal the same general dip 

 of the temperature curves from north and west to south and east, 

 and the same banking up of cold water against Florida that charac- 

 terize the profiles run by the Bache. 



CUBA 



tinir ■•■••.•■ 



^BAHAMA 

 \BANK 



GREAT 



BAHAMA 



BANK 



Fig. 38.— Salinity at 400 meters in the Straits of Florida, March, 1914. 



At the western end of the Straits the temperatures for the two 

 years agree very closely off Cuba (fig. 40) and on the Florida side 

 (fig. 41), except that the immediate surface was warmer in May, 1878, 

 than in March, 1914, as might have been expected from the differ- 

 ence in season. Otherwise the only notable deviation in the curves 

 is that the 1,800-meter temperature was S*" higher in 1878 than in 1914, 



