246 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
data from the continental shelf south of New York in that year, but 
in May, 1909 (1910), when there were no records for the northern part 
of the shelf, 34% o water was found over the shelf opposite Cape May 
just as was the case in May, 1913 (p.188). And in August, 1909 
(1911), 34%o water lay close to land south of Cape Cod, agreeing witl 
the GRAMPUS station in this region in August, 1913. In November 
1909, the curve of 34%po salinity followed the southern edge of George’: 
Bank: but the Bulletins contain no more recent records for the co : 
tinental shelf. 
So far as the rather meagre data show, salinity, like temperatui 
was normal in 1913. 
OcEANOGRAPHY OF THE GULF OF MAINE IN THE SUMMERS OF 1915 
AND 1918. 
The surface water next the coast between Cape Ann and Penobscot 
Bay was 1°-4° warmer in 1913 than the year before. But from Penob- 
scot Bay to Mt. Desert and again off the Grand Manan Channel th 
readings were about 2°-3° below those of the preceding year. Anc 
this was also the case on German Bank (48° in 1913, 50° in 1912). 
The readings at corresponding stations, tabulated below, show ho V 
closely the surface temperature agreed in the two summers, in th 
central and southwestern parts of the Gulf:— 
10024 61° ~ 10027 59° 
10089 61.5° 10092 - ~—«60° 
10002 63° 10045 61° 
10087 62° 10106 61.2° 
10028 59° 10012b 65° 
10093 60° 10105 64° 
The area which was warmest in 1913 (Fig. 1) was not visited i 
1912. Conversely less attention was devoted to Massachusetts Bay 
and to the coastal zone in-general in 1913 than in 1912. But so far 
as the observations in the Bay go, the surface temperature, month 
for month, was about the same there in the two years. Wl 
The subsurface temperatures of 1913 did not differ anywhere in | 
the Gulf from those of 1912 by more than 5°. August sa 
Massachusetts Bay in the two years, at nearly the same 10¢a 
