O BULLETIN OF THE BUREAU OF FISHERIES 



Scotia) on the east. These natural boundaries are continued offshore by Nan- 

 tucket Shoals on the one side and by Browns Bank on the other, which roughly 

 demark the boreal waters of the gulf from the warmer coastal water off southern 



_y«~" 



<if 



Fig. 1.— Locations from Grampus stations 10001 to 1004S, July 9 to August 21, 1912 



New England, on the one hand, and from the lower sea temperatures along southern 

 Nova Scotia, on the other. Longitudes 65° and 70° W. have been taken as the 

 definite limits east and west. The edge of the continent, at the 200-meter contour, 

 is chosen as the arbitrary offshore boundary, because this zone marks the transition 



