THE NORTH-EAST PASSAGE. 



45 



medium, maximum, and minimum temperature for 

 every month. 1 



In Sweden it is usually quite calm as soon as the 

 temperature falls to 20 and under. At our winter 



1 THICKNESS OF THE ICE. 



November 1, 1878, 

 December 1, u 

 December 15, n 



January 

 February 



1, 1879, 

 1, n 



February 15, 



March 



March 



April 



April 



May 



May 



June 



June 



1, 



15, 

 1, 



15, 



1, 



15, 



I, 



15, 



Ft. 

 0.96 

 1.90 

 2.70 

 3.10 

 3.65 

 4.04 

 4.16 

 4.24 

 4.30 

 4.68 

 5.20 

 5.45 

 5.20 

 5.10 



TABLE OF TEMPERATURE (CENTIGRADE), TAKEN ON BOARD THE 

 VEGA DURING 1878-79 AT L. N. 67 7', L. W. 173 24'. 



