468 



IRRIGATION PRACTICE 



culture, had already made observations on Californian 

 irrigation for half a generation, but his fundamental soil 

 studies had crowded out systematic irrigation experi- 

 ments. 



The Colorado and Utah stations were the first to 

 undertake special irrigation work. At the Colorado Station, 

 among the many workers who gave some attention 



FIG. 177. Dam of Salmon River project, Idaho, built by private enterprise. 



to irrigation, Elwood Mead and, later and chiefly, L. G. 

 Carpenter, made classical studies of the measurement, 

 division, seepage and underflow of water, together with 

 many allied questions. True to its traditional interest in 

 the engineering phases of irrigation, the Colorado Station, 

 in cooperation with the United States Irrigation Investi- 

 gations, completed in 1913 an experimental plant for the 

 study of the methods for measuring and dividing water, 

 which is unequaled. At the Utah Station, J. W. Sanborn, 



