388 



THE IRRIGATION AGE. 



of water by reason of the debris which has collected and covered the 

 bed-rock so deep that the expense would not justify the outlay for a 

 foundation. There are, however, thousands of locations in Kansas, 

 where dams and storage reservoirs can be constructed and made to 

 pay, providing prices of farm produce can be maintained; and many 

 of them can be constructed and made to pay, providing the interested 

 parties will cooperate in the building and distribution of the water, 

 even though prices fall again, as they may be expected to, for a time 

 at least. 



FACTS WORTH REMEMBERING. 



An acre-foot of water is 325,851 gallons. 



An acre of ground contains 43,560 square feet. 



One cubic foot per second: 50 California inches. 



One cubic foot per second: 38 Colorado inches, 



One cubic foot per second, one day: 2 acre-feet. 



One cubic foot per second, one year: 724 acre-feet. 



A cubic foot of water weighs about 62 pounds. 



A cubic foot of water contains about 7 gallons. 



A gallon of water weighs about 8J pounds. 



A gallon contains 231 cubic inches. 



An acre of ground covered with twelve inches of water is called an acre-foot, 

 or 43,560 cubic feet, or 325,851 gallons of water. 



A second-foot of water is the quantity represented by a stream one foot wide 

 and one foot deep flowing at the velocity of one foot per second. 



SNOW BANKS SURROUNDED BY VEGITATION. 



