the groups of occupations during 1934-41 and 1948-57. The 1957 

 observations show the intermediate water to have a salinity below any 

 of the prior occupations and a temperature near the previous cold limit, 

 and the deep water to be near average at 2,000, 2,500 and 3,000 meters, 

 and near the cold and low salinity limits at 3,500 meters. 



VI 



