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 (Bache 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- 
Salinity; %o_ 
i as 
A eee 
Fs fees Sl a a 
NCE aera 
sa 
—_~ 
— 
1600 ee a7, 
2 
1700 el alee 
1800 
Fia. 7.—Salinity sections between the continental slope off 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°/,,; and, like 
the temperatures, they show the greatest variations in the mid- 
