133 



westward to the American side south of Davis Strait Ridge during 

 the summer of 1938. 



In Bulletin No. 19, part 2 of this series, a composite longitudinal 

 profile of dissolved oxygen is shown, based on measurements made 

 on the Godthaab in 1928 and on the General Greene in 1935. As the 

 section was made up of stations not ideally situated to portray the 

 longitudinal distribution and as there seemed to be a difTerence in 



FiGVRE 55.— Oxygen profile, longitudinal section Labrador Basin to Davis Strait Ridpe, July 27- 

 August 1, 1938. 



absolute values between the Godthaab's 1928 and the General Greene's 

 1935 values, oxygen determinations were made at all stations along 

 the 1938 longitudinal section from depths of 100 meters down to the 

 deep water with the result shown in figure 55. As figure 55 cuts 

 through the middle of the area proposed by Smith, Soule, and Mosby 

 as that in which bottom water is formed in wintertime by convec- 

 tional mixing from surface to bottom, it is of particular interest. 



