78 



SouLE, F. M., and Graves, G. Van A. 



1939 The Ice Drift in the North Atlantic. (U. S. Hvdro- 

 graphic Office Pilot Chart, March 1939.) 

 Edwards, C. P. 



1939 Navigation Conditions on the Hudson Bay Route from 

 the Atlantic Seaboard to Port Churchill, season of 

 Navigation 1938. (J. O. Patenaude, I. S. O., Ottawa.) 

 Bartlett, R. a.: 



1939 United States Hydrographic Office Pilot Chart, North 



Atlantic Ocean, January 1939. 



1940 United States Hydrographic Office Pilot Chart, North 



Atlantic Ocean, March 1940. 



