SOIL IMPROVEMENT BY DRAINAGE, 71 



adopted vary greatly in different parts of the coun- 

 tiy. 



The fact that the yield of crops where the land is 

 irrigated are often surprisingly large, coupled with the 

 fact that the rainfall is uncertain in many localities, 

 makes the problem of irrigation one of importance to 

 farmers in many parts of the country. For excep- 

 tional crops profitable use of irrigation by water 

 pumped from wells by means of windmills or steam 

 engines has been secured. The utilization of streams 

 on hillsides or other high-lying land may already be 

 profitably attempted in some parts of the country. 

 However, irrigation is a problem of the future rather 

 than the present so far as most farmers in this coun- 

 try are concerned. 



