950 



BULLETIlir OF THE BUREAU OF FISHERIES 



and the general distribution of density in the upper 20 meters (fig. 199) makes it 

 probable that the calculated directions are a close approximation to the actual 

 dynamic tendency toward circulation at the time. 



Fia. 198.— Specific volumes on three profiles in Massachusetts Bay, June le'and 17, 1926. Calculated by R. Parmenter 



