ATMOSPHEROLOGY. — WINDS. 



411 



In the frigid zone in general, as well as in icy 

 regions without the Arctic Circle, winds blowing 

 from the ice towards the open sea, are the most 

 prevalent. In Hudson's Bay, westerly winds blow 

 for three-fourths of the year* ; at Kamtchatka the 

 prevailing winds are from the westward f ; in Green- 

 land northerly winds occur during seven months in 

 the winter :j: ; and in a similar proportion nearly in 

 Spitzbergen, Jan Mayen, and Nova Zembla, as far 

 as the observations of the adventurers who have oc- 

 casionally wintered in these desolate countries can 

 testify. 



In the Appendix, (No. II. Table A.) the mean 

 duration of different winds is partly determined in 

 the horizontal columns of " General Mean." The 

 following Table shows the duration in days of each 

 wind, and the number of stormy days in April, on 

 an average of seven years ; in May on an average of 

 twelve years ; in June on an average of ten years ; 

 and in July on an average of six years. 



* Pennant's Arctic Zoology, Supplement, p. 41. 

 + Idem, Arctic Zoology, cxiii. 

 X Middleton's Vindication, p. 201. 



