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BULLETIN OF THE BUREAU OF FISHERIES 



profile) that 3° to 4° water was continuous right across the western end of the bank 

 at the 10 to 30 meter level. 



Our experience has been that the water is so actively mixed by tidal currents 

 on the shoaler parts of Georges Bank that a complete equalization of temperature may 



Fio. 12.— Temperature at a depth of 40 meters, Febuary-March, 1920 



be expected there locally at any season. Had the western profile (fig. 15) cut such 

 a location, the readings would have been about 4° to 4.5° from surface to bottom; 

 but with a difference of about 0.1 per mille of salinity between the surface and the 

 bottom in 50 meters at station 20047 (p. 998), evidently such was not the case. 



