158 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
And it is probable that the surface was at or near its warmest by the 
end of July. 
The surface temperature off Long Island on August Ist (Station 
10083) was 68°; 69° off Block Island; and 72° thence to the entrance — 
of Vineyard Sound, though at the westerly end of the Sound it fell to 
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Fic. 4.— Temperature sections on the continental shelf off New York and 
Long Island (Stations 10063, 10065, 10066, 10067, 10082) and at the edge 
of the Gulf Stream, Lat. 39° 55’ (Station 10064). ~ 
68°, no doubt influenced by the violent tide. Two days later the 
surface water was 72° from Woods Hole to the east end of the Sound. 
But it was much colder (61°) off Monomoy; and only 50° on Pollock t 
Rip, this last being evidence, of course, of thorough vertical mixing — 
