PHYSICAL OCEANOGRAPHY OP THE GULF OE MAINE 
673 
Harbor, which opens freely 
to the deeps off Massachu- 
setts Bay, is 0.05° to 1° warmer 
than the more inclosed waters 
of Woods Hole in winter, 
although a degree of latitude 
farther north and bordering a 
colder ocean area (Bigelow, 
1915, p. 257). Gloucester 
Harbor, in turn, is colder than 
the neighboring parts of Mas- 
sachusetts Bay. F or example, 
the surface temperature of 
the outer part of the harbor 
fell to about 0.5° to 1.1° dur- 
ing the winter of 1912-13, 
but the lowest reading a few 
miles outside was 2.78° (Bige- 
low, 1914a). Boothbay Har- 
bor, 75 miles north of Glou- 
cester and shut in by numerous 
islands, is likewise colder in 
winter than are the neighbor- 
ing waters of the open gulf. 
On March 4, 1920, for instance, 
the temperature of the harbor 
was fractionally below 0° (fig. 
30), at which date the Albat ross 
had surface readings of 2.2° to 
1.1° on the run in to the land 
there from a station some 35 
miles offshore (20057). In- 
formation to the same effect re- 
sults from an average March 
temperature of about 0.11° at 
the Bureau of Fisheries station 
at the head of Boothbay Har- 
bor for March, 1881 to 1885, 
contrasting with 1.1° to 1.7° at 
Seguin Island (Rathbun, 1887). 
Finally, a graph (fig. 90) is 
offered to show the thermal 
progression of air and water in 
Massachusetts Bay during the 
winter of 1924 and 1925. 
December 3, 1924, to June 17, 1925. Compiled by E. Parmenter 
