AGRICULTURAL ENGINEERING. 



145 



TABLE SHOWING THE FORCE AND VELOCITY 

 OF WIND. (Waring.) 



NUMBER OP SQUARE FEET AND ACRES THAT A 



First-class Windmill can Irrigate One Inch in 8 

 Hours, Raising the W^ater lO, 15 or 35 Feet. 



(A. R. Wolff,) 



