68 



49° 29' west, it having drifted and dragged over the bottom 0.3 knot 

 per hour, 218° true. A test of the eifects from exploding a heavy 

 charge of T. N. T. was carried out on this berg, the result being 

 fully described in the report of the first cruise of the patrol ship. 

 The other berg, also rejjorted on the 13th and 17th, was followed by 

 the patrol first in its drift southward along the east side of the Bank; 

 then southward of the Tail; and later gradually wheeling to the 

 eastward, as it entered the northern edge of the Gulf Stream, where 



it finally disintegrated on April 11. This drift track for the period 

 March 17 to April 11, in which the berg covered a distance of over 

 400 miles, is one of the most interesting which the patrol has secured 

 and is shown as berg No. 2 on chart B. Berg No, 2 disintegrated at 

 n more rapid rate than usual for this time of year, existing only seven 

 days south of the Tail of the Bank, due to a high washing swell and 

 many heavy rai^ squalls. There was one more berg reported in 

 the north central part of the Bank on March 31, but this probably 

 was a part of the first berg, reported March 17. 



