63 



relieved the Tahoe as Ice Patrol vessel and Headquarters released the 

 Tahoe from Ice Patrol duty. 



The followmg is a summary of ice and water temperature reports 

 received during this cruise: 



Number of bergs reported south of latitude 48° N 10 



Number of bergs reported south of latitude 43° N 1 



Number of ice reports received 59 



Number of vessels furnishing ice reports 26 



Number of water temperature reports received 1, 041 



Number of vessels furnishing water temperature reports 130 



Number of vessels furnished special information 16 



ELEVENTH CRUISE, "PONTCHARTRAIN," JULY 14 TO 22, 1938 



The Pontchartrain sailed from Hahfax at 1800, July 12, 1938, to re- 

 lieve the Tahoe. Light southerly winds with haze and some fog pre- 

 vailed throughout the easterly run. The Tahoe had remained with 

 the southernmost known ice and was met in latitude 42°25' N., longi- 

 tude 50°08' W. Lt. G. Van A. Graves, and the observer's part^^ re- 

 ported on board and at 2235, July 14, 1938, the Pontchartrain relieved 

 the Tahoe as Ice Patrol vessel. 



The Pontchartrain remained with this ice as it drifted southward 

 across east-bound track C, the prescribed route, until the morning of 

 July 19, by which time it had disintegrated to the extent that it was 

 no longer considered a danger to navigation. On July 19, with good 

 visibility, the Labrador Current was scouted out to latitude 44°30' N. 

 During daylight hours on July 20 and 21 the Patrol vessel continued 

 scouting to latitude 46°30' N., but the search proved inconclusive on 

 accoinit of fog. No ice was found and the discontinuance of Ice Patrol 

 was recommended. 



Upon receipt of authorit}^ from Headquarters to discontinue the 

 Patrol all vessels were advised of the fact by a special broadcast in- 

 forming them that the Patrol vessel was leaving the area and no further 

 broadcasts would be transmitted. This message was sent out at inter- 

 vals as long as the Pontchartrain remained in the Ice Patrol area. On 

 behalf of the commander. International Ice Patrol messages expressing 

 gratitude were dispatched to all vessels and Cape Race Radio for in- 

 formation furnished and valuable assistance rendered the Patrol ves- 

 sels during the Ice Patrol season of 1938. 



Ice patrol having been discontinued at 1200, July 22, 1938, the 

 Patrol vessel proceeded to St. John's Bay, Newfoundland, arriving 

 there at 1437, July 22, 1938. Lts. W. P. Hawley and G. Van A. 

 Graves were transferred to the General Greene, Lieutenant Hawley 

 to be commander of the post-season observation cruise, and at 1850, 

 July 22, 1938, the Pontchartrain set course for New York, N. Y., 

 arriving there at 1030, July 26, 1938. 



