552 



BULLETIN OF THE BUREAU OF FISHERIES 



No temperatures were taken on the western part of Georges Bank or on Nantucket 

 Shoals during April, 1920. In 1913 Mr. Douthart had surface readings of 6.6° on 

 the northern part of Georges Bank on April 11 and 15, with 7.7° on its western side 



Fig. 24.— Temperature at a depth of 10 meters, April 6 to 20, 1920 



on the 27th (p. 980). Taking into account the annual differences between early and 

 tardy springs, temperatures about 2° lower mighthave been expected at these stations 

 and dates in 1920. A surface reading of 3.3° on Kose and Crown Shoal near Nan- 

 tucket Island on April 27, 1923 (p. 996) suggests that the surface has about the same 



