107 



was then approximately 25 miles inshore of the "cold" temperature 

 wall. 



Section IV: No extremely cold water was found in this section, 

 but the offshore stations 575 and 576 showed the effects of warm 

 tropical water. The isosteres have a gentle, irregular slope from the 

 inshore station, 571, out to the very end of the picture. 



■^To>T/0/^S 





 7-5 



\V> 



750 



450 



75C. 



348 (, , i^LZ 

 4Z \54- 



-r.Q 



"3472: «3492 »349S '^',., 



// 3-0 4^0 4.^ 44 



EASjT S.LOPE- 



e>£CTior\! 



>1A$1 «34Q2 -349b o34H 



Fig. 48.— Distribution of specific volume 



Section V: The inner edge of the Gulf Stream was reached at 

 station 581 while the inshore stations showed no water colder than 

 0° C. The density wall lay 25 miles inside of the "cold " temperature 

 wall. (Cf. fig. 37 with fig. 38, pp. 98, 99.) 



Section VI: To our surprise a pool of relatively warm and fresh 

 water was found at the offshore station on this section. It is difficult, 

 to explain its source unless it had drifted out from the Grand Bank, 

 curling around the end of the cold current which usually extends 

 northwestward along the slope from the Tail, at that season. Doubt- 



