NO. 17.] 



THE SLEDGE-EXPEDITION. 



651 



WIND. 



The pressure of the air was highest, 780-3 mm., on the lO*'^ March and 

 lowest, 722-4 mm. on the 18'^ February 1896. 



The temperature of the air was above 0° on the 9*^ and the 12*^ Sep- 

 tember and below — 40° on the 1«*, 2"^ and ll*'^ January. 



The situation of the winter-hut under a steep chff facing SW, probably 

 gives many of the winds from N, NE and E a character of a F0hn, which 

 may have a certain influence in making the mean temperature higher than 

 in a more open situation. This seems particularly to be the case in November, 

 January, February and April with their frequent winds from N, NE and E. 



The precipitation fell as snow, except on the S"^"^ and the 12'^^ September, 

 when some rain fell. 



The windward side of the wind-rose lay thus (see p. 285): 



