19 
duties may be raised from lack of water in the latter part of the 
season, as when the river falls in August, there may not be suffi¬ 
cient water to bring all the late crops to their best condition of yield. 
In such a case the comparison of the area with the amount of water 
which enters the canal will give a duty higher than would other¬ 
wise have been the case. 
The canal is 35 miles long and passes most of the distance 
through sandy loam. Its grade is 2.56 feet per mile. The loss 
from seepage is not definitely known. Much land has been water¬ 
logged since the canal was originally constructed, as has been the*case 
with most canals in the State. From the lowering of the bed of the 
canal it has been necessary to check the canal in many places to 
raise the surface of the water for the lateral canals, and the seepage 
in many places has been lessened if not entirely stopped. 
Fig. 8. 
^ \D 5 
The crops raised are principally the cereals, alfalfa and potatoes, 
the latter of which has become important at the lower end of the 
canal. The acreage is approximate!}^ 7,500 acres of alfalfa, 800 of 
native grasses, 18,500 of the cereals and potatoes; of this total, 
nearly 3,000 is irrigated from seepage and water from reservoirs. 
Alfalfa is grown in rotation with the other crops. The number 
of irrigations varies to some extent even in the same year among 
neighboring farmers; ordinarily two irrigations are given to each 
crop. Alfalfa would be given more, undoubtedly, if water were plen- 
