172 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
the mainland. In the northern part of the trough (Station 10104), 
it was 39.8° at eighty fathoms. 
In the summer of 1912, the water of the Gulf was invariably cold- 
est at the bottom; but in 1913 the western basin and two stations in 
the eastern basin (Stations 10092, 10093, Fig. 17) were coldest in 
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Fig. 17.— Temperature sections in the Gulf of Maine from Massachusetts 
Bay to German Bank (Stations 10087, 10088, 10090, 10092, 10093, 10094). 
the intermediate depths; the minimum in the former being 41.3° 
at fifty fathoms, 7. e., precisely the same as the uniform bottom water 
nearer shore, rising to 43.3° at 100 fathoms, below which level it 
was uniform down to the bottom (150 fathoms). On the western 
