32 



At 0710 visibility increased sufficiently and the P ont char train at- 

 tempted to relocate the southernmost ice. At 0813 the Pontchartrain 

 found three growlers in latitude 42°06' N., longitude 49°0T' W. At 

 1020 dense fog shut in again and further scouting was impossible. 

 At 1115 the fog lifted again and the Pontchartrain commenced scout- 

 ing to the southward. At 1425 found iceberg in latitude 42°02' N., 

 longitude 48°32' W., and at 1500 found growler in latitude 42°02' N., 

 longitude 48°24' W. Pontchartrain returned to the vicinity of the 

 last iceberg and drifted for the night, dense fog having shut in, 

 making further scouting impossible. 



At daybreak. May 1, Pontchartrain commenced searching to the 

 south and west in an attempt to relocate the southernmost ice. At 

 0804 Pontchartmiti located an iceberg in latitude 42°02' N., longi- 

 tude -10°! 5' W. At 1355 dense fog set in making further scouting 

 of this area impossible. Pontchartrain proceeded on various courses 

 to the southward and eastward in an attempt to run out of the fog 

 and so throughout the rest of the day. The next 2 days, May 2 and 

 3, the persistent fog over the cold water in the vicinity of the south- 

 ernmost ice thwarted every effort to scout out this dangerous and 

 critical area, and to relocate the southernmost ice. At 1707, May 3, 

 the weather cleared with strong nortliwest winds. The next 2 days. 

 May 4 and 5, the Pontchartrain searched from latitude 40°40' N., 

 to latitude 43°00' N. No ice was sighted so at 0856, May 6, the 

 Pontchartrain headed west for the relieving point. The Mendota 

 was contacted at 2025, May 6, in latitude 42°55' N., longitude 

 53°08' W. A boat was lowered and Lt. G. Van A. Graves and the 

 observer's party were transferred to the Mendota. At 2120, May 6, 

 the Pontchartrain was relieved by the Mendota as Ice Patrol vessel, 

 and set course for Halifax, Nova Scotia, arriving there at 0645, 

 May 8, 1935. (See fig. 13.) 



The following is a summary of the ice and water-temperature re- 

 ports received during the cruise : 



Number of bergs reported south of latitude 48° N 341 



Number of bergs reported south of latitude 43° N 20 



Number of vessels furnishing ice reports 79 



Number of vessels furnishing water-temperature reports 64 



Number of ice reports received 35 



Number of water-temperature reports received 975 



Number of vessels furnished special ice information 10 



FIFTH CRUISE, "MENDOTA", MAY 7 TO MAY 20, 1935 



The Mendota sailed from Halifax, Nova Scotia, at 0645, May 5, 

 1935, and proceeded to the relieving point at economical speed, 13 

 knots. The run from Halifax was uneventful and the weather fine 

 and clear, with light winds and calm sea. 



