25 



until the afternoon of May 12 when course was set eastward in order 

 to obtain clear weather and to be in position to commence scouting 

 when conditions improved. The following day the Chelan cruised 

 along the fog wall coincident with the border between the cold and 

 warm water to determine if bergs had drifted out of the cold current 

 into the Atlantic Current. No ice was sighted. 



With an improvement in visibility over the cold water on May 14, 

 the patrol vessel made an unsuccessful search of the southeastern 

 branch of the Labrador Current. That night a berg was reported in 

 latitude 41°27' N., longitude 50°41' W., so course was set for the 

 vicinity of this ice in order to be in position to sight it at daylight. 

 The berg was sighted the next morning by the patrol vessel in latitude 

 41°25' N., longitude 50°40' W., in water the temperature of which 

 was 56° F. It had been reduced to a growler and in 1 more day 

 would no longer be a menace to navigation. A large berg was reported 

 that morning in latitude 41°42' N., longitude 52°19' W. and was 

 found by the Chelan, at 1125, in latitude 41°41' N., longitude 52° 19' 

 W. Search courses were continued to latitude 42°31' N., longitude 

 51°58' W., but no additional ice was sighted. Fog again set in over 

 the cold water that night, so course was set to the southward to await 

 clear visibiHty. While cruising along the edge of the fog on May 17, 

 the line of demarcation separating the cold and warm water was very 

 clearly defined. The warm waters of the Atlantic Current being blue 

 and clear while those of the Labrador Current appeared to be muddy 

 and covered with a thin layer of surface fog. 



Dense fog continued over the cold water until the morning of the 

 19th. During this period the area south of the Labrador Current was 

 thorouglily scouted out, no ice being sighted. On May 19 the southern 

 limits of the cold current were searched with negative results. That 

 night course was set for the Tail of the Banks in order to investigate 

 conditions in that vicinity. The following morning search courses 

 were run in the Labrador Current from the Tail to latitude 43°52' N. 

 and then eastward to latitude 43°50' N., longitude 48°45' W. Twenty- 

 seven bergs were sighted in the cold current and seven additional bergs 

 to the eastward. Dense fog set in at noon and continued until 0930 

 on the morning of the 21st. That morning, with improved visibility, 

 search courses were run from latitude 44°04' N., longitude 48°22' W. 

 to latitude 44°04' N., longitude 49°16' W., from which point the Lab- 

 rador Current was again searched south to latitude 43°03' N., longi- 

 tude 49°23' W. Twenty-five bergs sighted the previous day were re- 

 located and 1 2 new bergs found. That night the Chelan drifted with the 

 largest of the bergs and the following day tlie region southeast of the 

 Tail was searched with negative results. 



Upon completion of the search on the 22d, the Chelan set course to 

 the westward to contact the Cham plain. While en route to the re- 



