EXPLORATIONS^ WESTERN ATLANTIC, STEAMER BACHE, 1914. 13 



Off the west slope of the Bermudas the temperature of the mid- 

 depths was much higher in 1914 {Baclie stations 10173-10177) than 

 in 1873, though in the abyss and above about 700 meters there was 

 little difference (fig. 3) . This divergence seems to have been a local, 

 not a general, phenomenon, for the two Challenger stations within 100 

 miles west and northwest of Bermuda (no. 37 and 38) agree much 

 more closely with Bache station 10171 (fig. 3). So far as these 

 records go there seems to have been little difference in the tempera- 



Meter (J 



100 



200 



300 



400 



500 



600 



700 



800 



900 

 1000 

 1100 

 1200 

 1300 

 1400 

 1500 

 1600 

 1700 

 1800 



Fig. 7.— Salinity sections between the continental slope o5 Chesapeake Bay and Bermuda; stations 10163, 



10171, 10177. 



tures of 1873 and 1914 in this part of the Atlantic as a whole; but the 

 water in the neighborhood of Bermuda was much more uniform in 

 1873 than in 1914, when there was a very considerable variation of 

 temperature at 800 to 1,200 meters between stations west (10177) 

 and others south of the island. 



The salinity curves, like those for temperature, all approach a 

 nearly uniform value at 1,800 meters, viz, 34.9-35°/oo; and, like 

 the temperatures, they show the greatest ^variations in the mid- 



