22 



fathoms of water. Station No, 45 was taken on May 25, station 

 No. 46 on May 26, and station No. 47 on May 27, warm water 

 being found throughout except at 250 meters at station No. 46, 

 where a trace of Arctic water was found. 



When it became apparent that the bergs would take up the eastern 

 drift the Tampa proceeded to the northward to search for ice that was 

 menacing the Cape Race and ''F" tracks and for those hkely to 

 become a menace to the southward. At 5. p. m.. May 30, a large 

 berg was located on the edge of the Banks in latitude 47° 17' N., 

 longitude 47° 55' W. This berg was about 700 feet long, 250 feet 

 high, and about 200 feet wide. It was box-shaped and showed little 

 signs of disintegratmg. This was the largest berg seen by the Tampa. 

 A series of sonic experiments were carried out around this berg. 

 While lying alongside, a report was received from the S. S. Oscar II, 

 Df a large berg in latitude 44° 00' N., longitude 48° 56' W. Acoursewas 

 laid for this position and the berg located at 7.25 p. m., on June 2, in 

 latitude 43° 12' N., longitude 49° 05' W. This berg was in the shape 

 of a floating dry dock, having two distinct walls of ice. It was over 

 500 feet long and about 262 feet high at its highest point. En route 

 to this berg another was sighted on May 31, at 3.45 a, m. in lati- 

 tude 46° 20' N., longitude 48° 03' W. The Tampa stood by the " dry 

 dock " until relieved. This berg was the first to break the warm water 

 barrier, it drifting down the tongue of cold water that lay along the 

 Banks. On June 2, it drifted due west, to the extreme southwest end 

 of the cold-water tongue and remained stationar}^ for the remainder 

 of the day, but later was caught in an eddy and whirled counter- 

 clockwise for approximately a day when it again took up its westward 

 drift. Station No. 48 was taken but no Arctic water was found. 

 No opportunity was had to observe the berg on June 3, 4, or 5 on 

 account of the gales and tog. The Tampa took station to the south- 

 ward of the ice during this time as a considerable number of vessels 

 were passing through the area in which the berg was located, giving 

 them radio warning of the presence of this ice. 



Attention is invited to the water temperature chart, May 1-15, 

 and the ice chart, showing the drift of this berg in comparison with 

 the drift of five others that were diverted to the eastward in latitude 

 44° 32' N. On the afternoon of June 5, the vessel cruised westward 

 searcliing for ice. A tog shut in and the vessel was hove to until the 

 morning of June 6 when the search was resumed. The fog again shut 

 in during the day, but the vessel proceeded slowly to the westward 

 as the set had been to the eastward during the niglit. At 5.46 p. m. 

 a growler and considerable small ice were seen and the vessel was hove 

 to for the night. At daybreak the ''dry-dock" berg was seen to the 

 westward. The vessel was headed for it. The position was deter- 

 mined and found to be latitude 42° 34' N.. longitude 50° 44' W. 



