162 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
10079). And as the high surface temperature of the latter was almos 
certainly due to the seasonal warming which had taken place durin 
the interval between our two visits, it is safe to say that at Statio 
10073 a mass of water warmer than the water either north or south c¢ 
it was crossed. South of Delaware Bay the water was also found coldes 
next the coast (the warm surface at Station 10078 was the result of th 
unusually hot weather of the preceding three or four days). And th 
curves show, further, that the two stations abreast of Chesapeak 
Bay (10078 and 10077) were from 1.5° to 3.5° colder, depth for deptk 
at the lower levels than the two stations immediately north of ther 
a fact of interest in connection with the salinity of the region. 
Fic. 8.— Chart of bottom temperature on the continental shelf for July; and 
in the Gulf of Maine for August. Temperature below 41°, cross hatched; 
41°-45°, single hatched. The dotted line,...., is the 100 fathom curve. 
yom 
