726 



BULLETIN OF THE BUREAU OF FISHERIES 



alteration in value might suggest, as evidence that phenomena of this sort may be 

 expected to develop temporarily anywhere in the eastern side of the gulf during the 

 season^ofithejyear when the vertical stabiUty of the water is slight. 



Fio. 102.— Salinity of Massachusetts Bay at the surface (plain flgures) and at 10 meters (encircled figures), April 21 to 



23, 1925 



