BIGELOW: EXPLORATIONS OF THE COAST WATERS. 



221 



was slightly warmer in September, 1915, than in August, 1914, though 

 the general distribution of temperature was the same. And this is 

 also true at 100 meters (Fig. 60) where the western half of the Gulf 

 was about 1°, the waters off -western Nova Scotia 2°-3° warmer in 

 September than in June. And the temperature profile across the Gulf 

 for September (Fig. 71) corresponds fairly well with the correspond- 

 ing profile for August, 1913 (1915, Fig. 71), especially in the presence 

 of the cold layer at about 100 meters, while the banking up of bottom 



Fig. 65. — Salinity at 40 meters, June, 1915. 



water warmer than 8° against Nova Scotia reproduces conditions 

 obtaining in 1913 (1915). 



In the depths of the Gulf, at and below 200 meters, there was prac- 

 tically no change in temperature from May to September, except off 

 the slope of German Bank (Stations 10270, 10310) where it rose by 

 about 1°. 



The September temperatures off Shelburne (Fig. 76) are interesting, 

 in connection with salinity, as evidence of a shrinkage of the Cabot 

 Current (p. 242), the minimum temperature having risen from .7° to 



