91 



Examination of the temperature and salinity maps (figs. 51 and 52) 

 plainly shows that the currents along the eastern slope of the Grand 

 Bank were composed of two distinctly different types of water. The 

 relatively cold and fresh masses which hugged the 100-fathom curve 

 belong to the Labrador current, while the warm salty water flowing 

 in the opposite direction was that commonly associated with the Gulf 

 Stream. Along the boundary of the currents eddies and sinuous 

 shapes characterized the general behavior. 



Fig. 51.— Set V. The distribution of warm and cold water at the 50-meter level, June 9-25, 1927 



The patrol was especially interested in following the drift of two 

 bergs which were sighted on the 11th of June floating in the Labrador 

 current on the northeastern part of the Grand Bank. They were 

 seen again on the 17th, 80 miles farther south, a drift which agrees 

 very well with the velocity and the direction of the current as calcu- 

 lated and shown on Figure 50. The ice was sighted for the last time 

 on June 21, having drifted southeasterly in the four days interim at 

 the rate of 0.4 of a knot per hour. This set does not agree so well 

 with the results obtaiued from observations in that locality, where 

 the patrol found only a weak and variable tendency toward an easterly 



