THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 



297 



Hence the cloudiest wind is the N.E. and the clearest the W. At all seasons N.W. 

 and W. winds have a small amount of cloud, while S.E., E., and N.E. winds are 

 accompanied by cloudy skies. This is clearly shown in the following table, showing 

 the departure from the seasonal mean : — 



Percentage Excess oe Defect of Cloud. 



There beiiief more winds from N.W. and W. than those from all the other directions 

 put together, and these having the least amount of cloud, the above table is strongly 

 influenced thereby. Thus although at no season do winds from the other six octants 

 fall below the general mean, yet lioth N. and S.W. winds are relatively clear at all 

 seasons, as is the S.E. wind in Spring and the N.E. in Summer. 



As showing the effect of the direction of the wind on the meteorological phenomena, 

 it is of interest to compare the Mays and Decembers of 1903 and 1904, the following 

 being the number of days with different winds : — 



Hence in both these months in 1904 winds from N.E., N., and N.W. blew on 12 

 days less than in the corresponding months of 1903, there being an excess of winds 

 from W., S., and E. The effect on some of the climatic elements was very pronounced, 

 as will be seen from the subjoined table : — 



