694 



DEPTHS OF THE OCEAN 



the specific gravity and viscosity of different waters, and 

 comparing them with the distribution and structure of the 

 animals. In this way I shall presently attempt to compare 

 various areas of the waters investigated by the " Michael Sars." 

 For this purpose Mr. Einar Lea has, on the basis of the 

 observations made by Dr. Helland- Hansen on our cruise, 

 worked out the three sections representing temperature, specific 



Fig. 504.— Distribution of Temperature from the Sargasso Sea (Station 63) 



TO Lofoten (Norwegian Sea). 



Depth in metres ; temperature Centigrade. 



gravity, and viscosity from the Norwegian Sea, west of Lofoten, 

 to the Sargasso Sea (see Figs. 504, 505, and 506). 

 Temperature, As to these sections, I wish to remark that they must not be 



Savky, and Considered as representing the direct continuity of the water- 

 viscosity along masses from the Sargasso Sea to the Norwegian Sea. The 

 currents do not run directly between the two terminal stations, 

 and perhaps it would be more correct to represent each of the 

 stations separately without connecting the curves. With this 

 reservation in mind, however, it should prove very instructive 

 to compare the conditions as shown in the sections. 



We see from the little chart (Fig. 62, p. 8^) that Station 63 



