204 



bulletin: museum of comparative zoology. 



The only record from George's Bank was considerably salter (about 

 33%o). And judging from the strong tidal currents of the Bank, 

 from the few previous records (1914b) and from the proximity of the 

 Gulf Stream, the general surface salinity over the bank is probably 

 above 32.5%o. 



The saltest surface water which we found in the Gulf was 32.79%o 

 on German Bank (Station 10045); but this is an abnormal value, 

 caused by vertical circulation (p. 178). And though even salter water 



5 

 10 

 15 

 20 

 25 

 30 

 35 

 40 

 45 

 50 

 55 

 60 

 65 

 70 

 75 

 80 



32 .1 .2 .3 .4 .5 .6 .7 .8 .9 33 



.4 .5 .6 .7 .8 .9 34 .1 .2 



Fi G. 46. — Salinity sections in the northeastern end of the basin of the Gulf of 

 Maine (Stations 10097, 10100); on Jeffrey's Bank (Station 10091); 

 German Bank (Stations 10094, 10095). near Lurcher Shoal (Station 10096) 

 and off the coast of Maine near Grand Manan Channel (Station 10098). 



may have spread from the south across George's Bank into the south- 

 eastern part of the Gulf in xVugust, there is no actual evidence that 

 such was the case. 



Salinity sections. The waters of the Gulf of Maine were freshest 

 at the surface, saltest at the bottom, just as in 1912 (1914a). In its 

 central part (Stations 10088, 10090, 10092, 10093, Fig. 44), the rate of 

 increase with depth was comparatively constant over the whole column 



