Average conditions of wind and weather, North Pacific ocean. 
Compiled for the information of ocean travelers from data in the Marine division of the Weather bureau. By Willis Edwin Hurd ... Issued September 1937. 
 - Washington,  U.S. Govt. print. off.,  1937. 
 - 1 p. l., 12 p.  map.  23 cm. 
<br/><br/> At head of title: United States Department of agriculture. Weather bureau. 
<br/><br/><label>LCCN: </label>agr37000661  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marine meteorology.
<br/><br/><label>LC Class. No.: </label>QC940.P3  / U5 1937