530 
BULLETIN OF THE BUREAU OF FISHERIES 
contrast with the warm core that splits 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 
Fig. 8. — Vertical distribution of temperature in the northeastern corner of the Gulf of Maine. A, March 
22, 1920 (station 20081); B, June 10, 1915 (station 10283); C, August 12, 1913 (station 10097); D, August 
12, 1914 (station 10246); E (broken curve), January 5, 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 ( b ) 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 
