VI 



At the inauguration of the ice i^atrol the General Greew, basing 

 on St. John's, Newfoundland, was employed primarily in oceano- 

 graphic work. During the season the General Grezne made three 

 oceanographic cruises and hydrodynamic surveys of the area con- 

 sidered to lie most dangerous from drifting ice. The data collected 

 were reduced at sea as the work progressed and current charts of the 

 ice area were constructed and turned over to the cutter on patrol 

 within a few hours after the last oceanographic observation was 

 taken. These charts were used to determine the probable set and 

 drift of ice. They proved very valuable in locating icebergs that had 

 not been sighted for several days due to fog and also in deciding the 

 areas most likely to contain ice when planning the scouting to be 

 done by the patrol cutters. 



On June 29, 1934, the ice patrol was discontinued for the season, 

 as it was apparent the icebergs were no longer a serious menace to 

 shipping in the North Atlantic Ocean. During the ice-patrol season 

 there were no disasters in the vicinity of the Grand Banks due to 

 collision of ships with ice. 



On July 3, 1934, the General Greene sailed from St. John's, New- 

 foundland, on a northern oceanographic cruise, in the southern part 

 of Davis Strait. She returned to St. John's, July 19. 



The section in this bulletin dealing with the oceanographic work of 

 the General Greene was prepared by Mr. Floj^d M. Soule, senior phys- 

 ical oceanographer. The remainder of the report was prepared by 

 Lt. R. M. Hoyle, U. S. C. G., ice-observation officer. 



