SECTION LIX IRRIGATION 



Irrigation is the name given to the plan of supplying 

 water in large quantities to growing crops. Since the dawn 

 of history this practice has been more or less followed in 

 Asia, in Africa, and in Europe. The Spanish settlers in the 

 southwestern part of America were probably the first to 



FIG. 268. PUMPING WATER FOR IRRIGATION 



introduce this custom into our country. In New Mexico 

 there is an irrigating trench that has been in constant use 

 for three hundred years. 



The most common source of water for irrigating purposes 

 is a river or a smaller stream. Artesian wells are used in 

 some parts of the country. Windmills are sometimes used 



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