PHYSICAL OCEANOGRAPHY OF THE GULF OF MAINE 
951 
Fig. 199.— The single-barbed arrows show the direction of the gradient current, as calculated for Massachusetts Bay by R. 
Parmenter, June 16 and 17, 1925. The double-barbed arrows outline the nontidal circulation as it probably existed at 
the time. The broken curves give the density at the surface. For further explanation see p. 952 
