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bulletin: museum of comparative zoology. 



flow over the bottom. And the level at which density is uniform, 

 horizontally (twelve fathoms) exactly coincides with the salt tongue 

 (p. 198). The profile abreast of Chesapeake Bay (Fig. 61) shows a 

 similar distribution of density over the inner part of the continental 



Fig. 60. 



Fig. 60. — Density profile across the con- 

 tinental shelf south of Delaware Bay 

 (Stations 10079-10074) July 22-30. 



Fig. 61. — Density profile across the con- 

 tinental shelf abreast of Chesapeake 

 Bay (Stations 10078, 10077, 10076) 

 July 24-29. 



Fig. 61. 



shelf. But the seaward rise of density on the bottom is less rapid 

 than it is further north; and density is uniform, horizontally, below 

 twenty-five fathoms. 



