55 



and was last seen the evening of May 15 in latitude 43°27' N., longi- 

 tude 48°58' W., at which time the Tahoe headed to the westward to 

 relocate the growlers last seen on May 12 and to meet the Pont- 

 chartrain. 



The Pontchartrain was met in latitude 43°58' N., longitude 53°51' 

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

 officer, and the observer's party were transferred to the Pontchartrain 

 and at 1340, May 17, 1938, the Pontchartrain relieved the Tahoe as 

 Ice Patrol vessel. The Tahoe set course for Halifax, Nova Scotia, 

 arriving there at 0025, May 19, 1938. 



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

 received during this patrol: 



Number of bergs reported south of latitude 48° north 136 



Number of bergs reported south of latitude 43° north 



Number of ice reports received 256 



Number of vessels furnishing ice reports , 104 



Number of water temperature reports received 1465 



Number of vessels furnishing water-temperature reports 244 



Number of vessels furnished special information 14 



SEVENTH CRUISE, "PONTCHARTRAIN," MAY 17 TO 31, 1938 



The Pontchartrain sailed from Halifax, Nova Scotia, at 1320, May 

 15, 1938, to relieve the Tahoe. Easterly gales, rain, and high seas 

 were encomitered that night but the weather moderated quicldy and 

 by the next morning light southerly winds with fog prevailed through- 

 out the easterh^ run until just before relief when the wind shifted to 

 northerly and the weather cleared. The Tahoe was met in latitude 

 43°57' N., longitude 53°54' W. A boat came alongside and Lt. G. 

 Van A. Graves, ice observation officer, and the observer's party re- 

 ported aboard and at 1345 the Pontchartrain relieved the Tahoe as 

 Ice Patrol vessel. 



The remainder of that clay and night the Pontchartrain ran to the 

 eastward, stopping on the southwestern slope of the Banks so as to 

 start scouting in the morning should the weather permit. The next 

 day was spent mamtaining position awaiting more favorable con- 

 ditions. On May 19 the Pontchartrain began a search plan designed 

 first, to run tlirough and south of the last reported position of the 

 growlers last seen by the patrol May 12 in latitude 43°12' N., longitude 

 50°59' W., and second, to cover all the area south and east of the Tail 

 into which bergs would be likely to drift since the area south of latitude 

 44° N., was last searched and particularly to relocate the berg last seen 

 by the Patrol in latitude 43°27' N., longitude 48°57' W. That day 

 and the next. May 20, an area 60 miles wide outside the 50 fathom 

 curve was scouted out from south of and around the Tail to latitude 

 43°50' N., as shown on the track chart. No ice was sighted. At day- 

 light. May 21, a growler was sighted in latitude 43°41' N., longitude 



