BIGELOW: EXPLOIL\TIONS OF THE COAST WATERS. 



197 



The salinity curves oflf southern Nova Scotia show the southward 

 and westwaril expansion of comparatively fresh water off Shelburne, 

 and the Salter tongue approaching the land off Halifax as clearly at 

 40 meters as on the surface (Fig. 18). 



There was no essential variation from this general distribution of 

 salinity, i. e., freshest in the western part of the Gulf of Maine and off 

 southern Nova Scotia, saltest over the continental slope, down to 



57 ^4.9f 



) 34.4 / / J 



oH..^ 



35.3 



Fig. 35. Salinity at 200 meters, July-August, 1914. 



100 meters, except such as results from the enclosure of the basin of the 

 Gulf by its southern rim (Fig. 34). And the influence of ocean water 

 in the southeastern part of the Gulf, (34.%o), with its chief line of 

 dispersal toward the northeastern corner, and thence westward along 

 the coast of Maine, is as unmistakable on the 100 meter as on the 

 40 meter chart. The tongue of high salinity (33.5-34%o) off Halifax 



