108 s^ 



far Xorth, a miiiiinmn lay at 50 meters (27 fathoms) below the sur- 

 face. The surface layers, also, to a depth of 100 meters ( 55 fathoms) ^ 

 were fresher than at the greater depths, and their salinity of 33.37- 

 33.64 Voo easily accords with the conclusions reached regarding the 

 temperatures. The data gathered at station 386 reveal the distance 

 which traces of arctic water may attain in a southwesterly direc- 

 tion from the Tail before their identity is completely eil'aced through 

 mixing Avith the offshore Atlantic. April 6-10 there was a south- 

 westerly flow to this water mass, as proved by berg Xo. 2, which 

 floated within it, drifting southwest at the rate of 0.5 knot per hour. 

 Station 378 was taken April 8 close aboard berg Xo. 2 which by that 



date had been swung to the left and was drifting in a general south- 

 easterly direction. At station 387 warm water, 13.9° to 12.-4°. lay to 

 a depth of 450 meters (247 fathoms). Abyssal water, 4.2°, w^as. 

 found at 750 meters (410 fathoms), and salty water, 35.79-34.92 Vo^^ 

 extended from the surface to the depth of investigation. 



This mass was warmer and saltier than Avater indigenous to these 

 latitudes. It corresponds to water of tropical origin and from pre- 

 vious observations in these regions south of the Grand Bank it was 

 recognized as water associated with the Gulf Stream. All Arctic 

 traces had completely disappeared and berg Xo. 2 floated amidst 

 tropical surroundings. 



Station 388 Avas taken April 10, near berg Xo. 2. The temperatuie 

 and salinities, although not so high as those at 387, sliowed tliat the 



