86 



known as Labrador current, while the current from offshore sweeping 

 in toward the slope can be none other than Gulf Stream. 



The most interesting event, at least from the standpoint of the 

 patrol, was the presence of an iceberg which drifted in this area imme- 

 diately after the completion of the current survey. It was first 

 sighted on May 30 on the northeastern part of the Bank, and was 

 seen again on the 31st, June 1, and the for the last time on the 4th, 



/z7^^^M^7 



^ H/xy^o 



I 



i>.- ^ J <o 



I 





47 



46 



^ 



44 



43 



So ^S 4^ 41 46 45 



FiQ. 46.— Set IV. The direction and velocity of the currents May 29-June 3, 1927. The track of 

 an iceberg is shown from May 27-June 8, 1927, closely agreeing with the calculated circulation 



when it was only the size of a growler. Its path, shown on Figure 

 46, closely conformed to the general scheme of circulation as calcu- 

 lated from physical observations of salinity and temperature. Its 

 rate of drift also agreed quite well with the velocities as computed by 

 Bjerknes's formulae. This is one of the best comparisons that the 

 ice patrol has been able to obtain between dynamic equations and 

 the actual drift of a floating object. 



