PHYSICAL OCEANOGRAPHY OF THE GULF OF MAINE 
953 
Dynamic evidence thus suggests the persistence of the general southerly drift 
past this sector of the coast line through June, involving Massachusetts Bay, which 
is corroborated by the drifts of a considerable number of bottles that were put out 
in the bay by the Fish Hawlc a month earlier. 
JULY AND AUGUST 
The rapid solar warming of the surface over the western arm of the basin leads 
to the development of a pool of low density in the offing of Cape Ann by July and 
August (figs. 200 and 201). The eastern part of the gulf, on the other hand, continues 
