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bulletin: museum of comparative zoology. 



61° to about 67.5° at Nantucket light-ship; and the curves for TO'* 

 and 72° reveal a tongue of warm water extending from the outer 

 edge of the shelf south of Long Island northeastward toward Nan- 

 tucket. Probably it was Gulf Stream water driven northward over 



5 



10 

 15 



49 50° 51 52 53 54 55 56 67 58 59 60° 61 62 63 64 65 66 67 68 69 70° 71 72 73 74 75 76 77 



Fig. 6. — Temperature sections on the continental shelf south of Delaware 

 Bay (Stations 10074, 10075, 10077), at the mouth of Chesapeake Bay 

 (Station 10078) and at the edge of the Gulf Stream opposite Chesapeake 

 Bay (Station 10076). 



the shelf by the southerly gale of August 23; but no salinities were 

 taken. For a list of the surface temperatures taken by Mr. Welsh, 

 see p. 350. 



Temperature sections (Table, p. 344) . In general there was a rapid 

 fall in temperature from the surface downward, all over the conti- 

 nental shelf, from Cape Cod to Chesapeake Bay; and the sections 



