10 



that was threatening on April 18 in the vicinity of the forty-fifth 

 meridian. A few bergs were reported from positions well over on 

 the Banks. Such ice as reached the latitude of the Tail was forced 

 close around it to the west. Although the threatening situation that 

 existed for the "B" tracks at the beginning of the second cruise 

 seemed to have passed for the time being, the bergs remained in such 

 great quantities along the eastern edge of the Banks until the last 

 of the cruise that it was thought inadvisable to recommend a shift 

 of tracks north from "A." 



Six oceanographic stations were taken and computed during the 

 cruise. The salinities of the samples of sea water were determined 

 on board quite satisfactorily by the method of chemical titration. 

 As was done on all cruises, frequent soundings were made by the 

 echo method. 



Considerable fog was experienced during the second cruise, but 

 there were also long intervening periods of fine, clear weather. During 

 the cruise a marked transition from blustery spring conditions to 

 more moderate summer conditions with predominating light southerly 

 breezes took place. In the ice-patrol area the sun's rays increased 

 in strength noticeably and commenced to warm effectively the surface 

 layers of the sea on clear days. 



Special ice information was sent to seven vessels; 957 temperature 

 reports were received from 134 cooperating vessels. The water 

 temperature and weather reports in addition to showing the location 

 of the cold and warm currents, helped the patrol vessel to tell just 

 what sections were being effectively searched by shipping and enabled 

 her to devote her own efforts to the critical areas and to areas from 

 which no reports were being received. During the second patrol 

 period 203 reports of ice were received from ship and shore stations. 



THE THIRD CRUISE, "TAMPA," MAY 4-19 



After the Tampa took over the ice-patrol duty low visibility due 

 to mist and fog patches prevailed until the 5th, on which date a 

 search for ice was started up the eastern edge of the Banks from the 

 latitude of the Tail. Six bergs were located in the cold stream south 

 of the forty-fourth parallel. On the 6th the largest of these, when 

 revisited, was found to have drifted 24 mxiles, 160° true, in 24 hours 

 to 43° 04' N., 48° 49' W. 



The 7th and 8th were foggy, but on the 9th visibility was good 

 again. No search was started on this day, however, because a 

 member of the crew had been operated upon for appendicitis on 

 board the evening before and it was desired to keep the ship as 

 steady as possible for his benefit. He rapidly recovered without 

 complications. Twenty-five ice reports came in from north of the 

 forty-fourth parsll^l during the day. One of the bergs along the 



