340 DRY-FARMING 



water is obtained in the dry-farm territory by driving 

 pipes to comparatively great depths, ranging from 

 one hundred feet to over one thousand feet. At 

 such depths water is nearly always found. Often 

 the geological conditions are such as to force the 

 water up above the surface as artesian wells, though 

 more often the pressure is simply sufficient to bring 

 the water within easy pumping distance of the sur- 

 face. In connection with this subject it must be 

 said that man}- of the subterranean waters of the 

 dry-farm territory are of a saline character. The 

 amount of substances held in solution varies largely, 

 but frequently is far above the limits of safety for 

 the use of man or beast or plants. The dry-farmer 

 who secures a well of this type should, therefore, 

 be careful to have a proper examination made of the 

 constituents of the water before ordinary use is made 

 of it. 



Now, as has been said, the utilization of the sub- 

 terranean waters of the land is one of the living 

 problems of dry-farming. The tracing out of this 

 layer of water is very difficult to accomplish and 

 cannot be done by individuals. It is a work that 

 properly l^elongs to the state and national govern- 

 ment. The state of Utah, which was the pioneer in 

 appropriating money for dry-farm ex]3eriments, 

 also led the way in appropriating money for the 

 securing of water for the dry-farms from subter- 

 ranean sources. The work has been progressing in 



