U. S. TREASURY DEPARTMENT 

 COAST GUARD 



Bulletin No. 33 



INTERNATIONAL 



ICE OBSERVATION AND ICE PATROL 



SERVICE 



IN THE 



NORTH ATLANTIC OCEAN 



FLOYD M. SOULE 

 E. R. CHALLENDER 



CG- 188-1 



Season of 1947 



UNITED STATES 



GOVERNMENT PRINTING OFFICE 



WASHINGTON: 1949 



