BIGELOW: COAST WATER EXPLORATION OF 1913. 191 
fresher once more below 100 fathoms or so. Station 10064 is the fresh- 
est of the three, with 10071 the saltest, 10076 is intermediate between 
these two. And they approach one another so closely below 150 
fathoms as to suggest that they would have been all alike below that 
depth, had the stations been located a few miles further off shore. 
so a = 
“28 (ese nae 
BL 
eee eT EE AA 
SS eS ERR 
SSP SaaS SEO 
SSSR ERE RSS ee 
eee 
EE 
—_ 
nm 
ao 
Fie. 35.— Salinity sections at the edge of the Gulf Stream at Lat. 39° 55’ 
(Station 10064); Lat. 38° 56’ (Station 10071) and abreast of Chesapeake 
Bay (Station 10076). 
{ 
! 
| 
| Of the three, Station 10071 most nearly approaches a typical oceanic 
| section; but even here the effect of coast water is evidenced by the 
_ fact that the surface salinity is lower than that of the intermediate 
| layers, while Stations 10064 and 10076 both give a similar result though 
| to a greater degree. 
Salinity on the bottom. The salinity on the bottom of the shelf 
