15 



From the berg, the Pontchartrain scouted at 16 knots to the west- 

 ward to the 50-fathom curve and then down the eastern slope of the 

 Grand Banks for 30 niiles. At 8:53 a. m. the search was changed to 

 the eastward and continued to longitude 46°50' W. Then we ran 

 24 miles north, then to the westward and the berg sighted early that 

 morning was relocated. During the day it had drifted 9 miles north- 

 northeast and decreased in size to a growler. On this date the com- 

 mander, International Ice Patrol, recommended to Coast Guard Head- 

 quarters that the patrol be discontinued for this season. 



The ice-patrol vessel drifted near this growler during the night. 

 At 4 a. m. on June 29 she left this growler in 44°11' N., 47°44' W., 

 and headed for the berg sighted June 27. At 6:50 a. m. fog set in, 

 and the course was changed to 300°. At 9:50 p. m. on June 29 the 

 commander International Ice Patrol's dispatch was received discon- 

 tinuing the ice patrol for this season. The General Greene was met in 

 46°13'30" N., 50°58' W., at 9:50 p. m. on June 29, and Lt. R. M. 

 Hoyle and ice-observation party were transferred to that vessel. The 

 International Ice Patrol was discontinued at 10 p. m., plus three 

 time, June 29, 1934. The Pontchartrain then proceeded to Nor- 

 folk, Va. 



During the cruise five bergs were reported south of latitude 48° north. 

 Two of these bergs were south of latitude 45° north. One of these 

 had melted to a growler when last sighted on June 29 in latitude 44°1 1' 

 N., longitude 47°44' W. The other berg was last sighted in 44°58' N., 

 46°39' W., on June 27. It was drifting north-northeast at 12 miles 

 per day. Two bergs were on the northwest slope of the Grand 

 Banks. The fifth berg was reported in 46°37' N., 46°54' W., on 

 June 29. North of latitude 48° N., eight bergs were reported during 

 the cruise, in widely scattered positions between longitude 48° west 

 and the Newfoundland coast. 



The weather during this cruise was mild, with visibility better than 

 average. On June 25 the visibility was excellent with light south- 

 east to southwest winds. Such weather conditions usually bring fog. 

 The percentage of time with visibility less than 2 miles was 25.0; with 

 visibility less than 4 miles it was 25.6 



The following is a summary of sea-water temperatures and ice 

 reports received during the cruise: 



Estiiuated iiwmber of bergs reported south of latitude 48° N 3 



Estimated number of bergs reported south of latitude 45° N 2 



Estimated number of ice reports received 13 



Estimated number of water-temperature reports received 441 



Estimated number of vessels furnishing water-temperature reports 49 



Estimated number of vessels furnishing ice reports 8 



Estimated number of vessels furnished special ice information 1 



Figure 8 shows track of patrol vessel, surface isotherm and ice 

 condition for this cruise. 



