24 PHYSICAL GEOGRAPHY. 



TABLE "D." 

 Direction and force of wind for the year 1874. 



By exchanging the totals of March and April, as also by trans- 

 ferring 50 from the total of south, to the total of north, and this 

 gives nearly the mean of ten years past. 



Tables "A," B," "C" and D," are all from Dr. Childs. The 

 following table of the direction and force of the wind is t.iken from 

 the report of the Signal Service. It shows how many times the 

 wind blew from the eight cardinal points, from July, 1877, to July, 

 1878. 



