DAVIS .STRAIT AND LABRADOR SEA 



43 



Figure 17. — Temperature and salinity at a depth of 200 meters July 30-Septeniber 



?,. 1928. 



Figure 18. — Temperature and salinity at a depth of 400 meters July 30-September 



a, 1928. 



well, is clearly indicated in the coldest and freshest surface layers 

 inshore. The frigid layer which is to be seen on the three northern- 

 most profiles E to G (figs. 20 and 21) as represented by the isotherms 

 at about 100 meters depth, indicates Arctic water which has pene- 

 trated to these points from a northern source, probably from Baffin 

 Bay. 



79920—37 4 



