IRRIGATION VS. DRY-FARMING 329 
vated for the same crop returns, for it has been amply 
demonstrated that the acre yields under proper irri- 
gation are very much larger than the best yields under 
Fic. 90. Dry-farm with flood-water reservoir. Utah. 
the most careful system of dry-farming. Secondly, a 
greater variety of crops may be grown on the irrigated 
farm than on the dry-farm. As has already been 
shown in this volume, only certain drouth resistant 
crops can be grown profitably upon dry-farms, and 
these must be grown under the methods of extensive 
farming. The longer growing crops, including trees, 
succulent vegetables, and a variety of small fruits, 
have not as yet been made to yield profitably under 
arid conditions without the artificial application of 
water. Further, the irrigation-farmer is not largely 
dependent upon the weather and, therefore, carries on 
