66 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
important, because of the peculiar temperature conditions which 
characterized the last two. German Bank and Platt’s Bank bear the 
same relation to each other in salinity that they do in temperature, 
the former being colder and salter at the surface, warmer and fresher 
at the bottom, than the latter. But while Jeffrey’s Bank was inter- 
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Fic. 22.— Salinity sections at Stations 27, 28, 31, 32. Curves are dotted 
when the surface and bottom salinities alone are known. 
mediate between the two in temperature, it had a lower salinity at all 
depths than Platt’s Bank and it was fresher down to about thirty 
fathoms than German Bank, showing the influence of fresh water 
from the Penobscot. The increase in salinity with depth was very 
slight on German Bank, the difference between surface and bottom 
