23 



May 29, the area between latitudes 46° N., and 47° N., between the 

 50- and 100-fathom curves was searched for ice but none was found. 



From May 24 to 29, then, the Pontchartrain searched the entire 

 area of southward moving water from latitude 42°40' N., to latitude 

 47°00' N., and no ice was sighted. At this time only five known 

 bergs remained in the area and these were north of latitude 48° N., 

 and not in positions wliich would carry them south. So at 1650, 

 May 29, it was recommended to headquarters that ice observation 

 be discontinued for the season and the Pontchartarin set course to the 

 westward for the relieving point. (See Fig. 23.) 



The Champlain was met in latitude 43°28' N., longitude 60°09' W., 

 at 1815, May 31, 1936. A boat was lowered and Lt. G. Van A. 

 Graves and the observer's party were transferred to the Champlain 

 and at 2000 the Champlain relieved the Pontchartrain as ice-observa- 

 tion vessel. The Pontchartrain set course for Halifax, Nova Scotia, 

 arriving there at 0900, June 1, 1936. 



The following is a summary of ice and water-temperature reports 

 received during the patrol: 



Number of bergs reported south of latitude 48° N 1 



Number of bergs reported south of latitude 43° N 



Number of vessels furnishing ice reports 11 



Number of ice reports received 9 



Number of vessels furnishing water-temperature reports 88 



Number of water-temperature reports received 1, 065 



Number of vessels furnished special information 8 



SIXTH CRUISE, "CHAMPLAIN," JUNE 1 TO 9, 1936 



The Champlain sailed from Halifax, Nova Scotia, at 0558, May 31, 

 1936, on ice-observation duty. Light southwesterly and south winds 

 and good visibility were experienced en route, and at 1810 the Pont- 

 chartrain was met in latitude 43°29' N., longitude 60°07' W. A boat 

 was lowered and Commander G. W. MacLane departed for a con- 

 ference with the Commander, International Ice-Patrol force. At 1910, 

 Commander MacLane returned aboard and Lt. G. Van A. Graves 

 and the observer's party reported aboard and at 2000 the Champlain 

 relieved the Pontchartrain as ice-observation vessel. 



The Champlain set course for the eastern edge of the Grand Banks 

 in latitude 46°00' N., arriving there at 1807 June 2. The remainder 

 of that day, and on June 3 and 4, the Champlain scouted up the cold 

 current to the Straits of Belle Isle. No ice was sighted until in the 

 immediate vicinity of Belle Isle where numerous large bergs were 

 found inside the straits and to the east and southeast of Belle Isle on 

 Jime 5 and 6. On June 7 and 8, the Champlain returned to the Grand 

 Banks area to contact the General Greene, sighting the following ice 

 «n route; June 7, berg, latitude 51°08' N., longitude 53°19' W.; berg, 

 latitude 51°14' N., longitude 53°20' W.; berg, latitude 49°25' N., 



