36 



H. C. DA.NNEVIG. 



a typical summer wind and is reduced to a minimum in 

 July. It is second in importance with about 14,000 miles. 

 The easterly resembles the former, it is generally one 

 month earlier in its fluctuations, and stands number four 

 in importance with about 8,800 miles. The south-easterly 

 is also a summer wind and is number six in order of import- 

 ance with about 8,000 miles for the year. 



We have three primary winds, West, North-east and 

 South, with from 16,000 to 14,000 miles each, and the 

 others are of secondary power. The total amount of wind 

 that passes over one fixed point during a normal year is 

 slightly more than 79,000 miles, and is fairly evenly dis- 

 tributed over the different months. 



In order to discover the final result from the action of 

 the monthly winds in analogy with the movements of the 

 feather-light object already referred to, I have compared 

 the opposing forces (north and south, east and west) and 

 substracted the smalle 1 from the larger. The four remain- 

 ing balances represent the total "drift" energy for the 

 month, and have been recorded in Table VII. 



Table VII. — Showing the four dominating Winds (in miles) for each month (Normals). 



Month. 



S. 



S.W. 



W. 



N.W. 



N. 



N.E. 



E. 



S.E. 



January 



1359 











1925 



1011 



823 



February 



1066 











1671 



849 



941 



March 



1027 











1184 



600 



854 



April 



803 





583 







113 





69 



May 



638 



562 



1602 



215 











June 



210 



785 



2698 



695 











July 



442 



948 



2698 



580 











August 



616 



424 



2047 



453 











September 



421 





1282 



228 





162 







October 



811 





310 







827 





31 



November 



1152 











1491 



558 



606 



December 



1257 











1767 



1031 



687 



Dominating winds 



9£02 





7171 







6421 





1840 



for normal year 



















It is of interest to note how the balance of power changes 

 from month to month, while the peculiar characteristics 

 of each month are also portrayed. In order to determine 

 the final resultant power for each month, it is necessary to 



