BIGELOW: COAST WATER EXPLORATION OF 1913. 215 
but as noted (p. 221) the water was even denser on George’s Bank and 
in the Gulf of Maine. In general, the density rose from southwest to 
northeast, corresponding to the general decline of surface temperature 
(Fig. 1). 
At all our stations south of Cape Cod the water was heaviest at 
the bottom, 7. ¢., it was in stable equilibrium, as is the rule everywhere, 
Fig. 55.— Chart showing surface density of the water south and west of Cape 
Cod in July, and of : the Gulf of Maine in August. Curve----- , July 
29-Aug. 1. 
in temperate regions in summer. But it varied so much, level for 
| level, at different stations, as to suggest a potent cause for circulation. 
To facilitate comparison with salinity and temperature, density is 
reproduced here by corresponding profiles. 
