372 



i'i:ttersson, sibejuas sea. 



Winter-observations at Pitlekaj. 



Some of these observations, which concern the saltness of" 

 the ice, the efflorescence of Rossol salt and the appearance of 

 salt brines on the surface of the ice-floes are discussed in the 

 foregoing paper. . In the following table are enumerated some 

 determinations of the temperature and spec. gravity of the 

 sea-water beneath the ice. * The titrations were made on 

 board the ship. 



^ The thickness of the ice was measured once or twice every month. 

 The following transumt is taken from ^A'egas fiird kring Asien och Europa> 

 (page 449, Swedish edition): 



