WINDMILLS AND PUMPS. 



365 



water was raised forty-five feet and irrigated five acres. 

 Such a mill may give good service where only a small 

 quantity of water is required, or where the mill is 

 not surrounded — nor likely to be — by trees or other 

 obstrudfions which shut off the winds; but for irri- 



FIG. 77 — WIND RUSTLER. 



gating considerable trails, or if trees or buildings are 

 near by north or south, results will scarcely be satis- 

 facftory. 



Another plan for a wind rustler is used in Nebraska. 

 Four tall posts are set in the ground at proper dis- 

 tances apart. A wooden windlass revolves in boxings 

 attached to the top of each pair of posts. The fans are 

 made of boards set into auger-holes in the middle of the 

 windlass. A small iron crank at one end of the wind- 

 lass operates the pump. 



