53 



with tliis ice, following its movement, until the morning of May 3. 

 At 0600 that day course was set to the westward toward the relieving 

 point. The berg was left in approximately latitude 43°18' N., longi- 

 tude 51°13' W. 



The Tahoe was met in latitude 43°59' N., longitude 53°27' W. 

 A boat was lowered and Lt. G. Van A. Graves, ice-observation officer, 

 and the observer's party were transferred to the Tahoe and at 1405, 

 May 3, 1938, the Tahoe relieved the Pontchartrain as Ice Patrol vessel. 

 The Pontchartrain set course for Halifax, Nova Scotia, arriving there 

 at 0750, May 5, 1938. 



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

 received during this cruise: 



Number of bergs reported south of latitude 48° north 110 



Number of bergs reported south of latitude 43° north 2 



Number of ice reports received 121 



Number of vessels furnishing ice reports 42 



Number of water-temperature reports received 1, 264 



Number of vessels furnishing water- temperature reports 167 



Number of vessels furnished special information 22 



SIXTH CRUISE, "TAHOE," MAY 3 TO 17, 1938 



The Tahoe departed from Halifax, Nova Scotia, at 2348, May 1, 

 1938, and course was set for the vicinity of the Grand Banks to relieve 

 the Pontchartrain as Ice Patrol vessel. Light to moderate winds from 

 the south and southwest, shifting to northerly, and generally good 

 visibility were experienced enroute. The Pontchartrain was met in 

 latitude 43°03' N., longitude 53°25' W. A boat from the Pont- 

 chartrain came alongside and the commanding officer from the 

 Pontchartrain came aboard for a conference with commander. Inter- 

 national Ice Patrol. Lt. G. Van A. Graves, ice-observation officer, 

 and the observer's party reported aboard and at 1450, May 3, 1938, 

 the Tahoe relieved the Pontchartrain as Ice Patrol vessel. With the 

 departure of the Pontchartrain' s boat the Tahoe set course for the 

 last-sighted position of the southernmost berg on the southwestern 

 slope of the Grand Banks. 



The following morning. May 4, this berg was located- in latitude 

 43°28' N., longitude 51°28' W., in 55 fathoms of water. As this 

 berg showed no tendency to move southward and the currents in the 

 vicinity would tend to take it northwestward, the Tahoe spent the 

 day searcliing around the Tail of the Banks, in the axis of the cold 

 current, and up the eastern side to latitude 43°40' N. No ice was 

 sighted in tliis critical area. The next day the search was continued 

 up the eastern slope of the Banks just outside the 100-fathom curve 

 to latitude 46° N. Only two growlers were sighted tliis day in the 

 following positions: latitude 44°04' N., longitude 49°08' W., and 

 latitude 45°28' N., longitude 48°30' W. 



