530 



BULLETIN OF THE BUKEAU OF FISHEEIES 



contrast with the warm core that spUts it in the eastern side. Had the profile been 

 run a few miles farther north, the contrast in temperature would have appeared still 

 sharper in this relative region (at station 20054) ; less so a few miles farther south 

 (at station 20053), as the charts for the surface and for the 40-meter level (figs. 1 

 and 12) make clear. 



The most notable features of a profile running south from the offing of Cape 

 Elizabeth, across Georges Bank and the continental slope (fig. 15), is its demonstra- 



Temperature, Centigrade 



,0 2° 3° 4° 5° 6° 7° 



go ,Q<. ],o ,2° 13° 14° 15° 16° 17° IS" 



Meter 



10 

 20 

 30 

 40 

 50 

 60 

 70 

 80 

 90 

 100 



no 



120 



130 



140 



150 



160 



170 



180 



190 



200 



Flo. 8. — Vertical distribution of temperature in the northeastern corner of the Gulf of Maine. A, March 

 22, 1020 (station 20081); B, June 10, 1915 (station 10283); C, August 12, 1913 (station 10097); D, August 

 12, 1914 (station 10246); E (broken curve), January 6, 1921 (station 10502) 



tion (a) that the transition in temperature from the boreal waters of the gulf, on 

 the one hand, to the oceanic water outside the continental edge, on the other, is 

 hardly less abrupt along this line in the last week of February and first week of 

 March than it is in midsummer (p. 615) ; and (6) that the bottom at 75 to 300 meters 

 was bathed by water as warm as 8° to 11° as far east as longitude 68° along the 



