ACKNOWLEDGMENT FOE 

 ILLUSTRATIONS 



The illustrations in this book are either original or 

 taken from the publications of the United States Depart- 

 ment of Agriculture, the United States Geological Survey, 

 and the state experiment stations, with the following 

 exceptions, which have been secured from 

 Bark, Don H., Irrigation Investigations, United States Department 



of Agriculture. Figs. 50, 58, 59, 71, 72, 76, 91, 108, 168, 177. 

 Blinn, P. K., Colorado Experiment Station. Figs. 38, 86, 156. 

 Blanchard, C. J., United States Reclamation Service. Figs. 6, 49, 



69, 87, 93, 110, 174. 

 Bonebright, J. E., Montana Experiment Station. Figs. 18, 39, 60, 



61, 167. 



Cutler, Thomas R. Fig. 75 

 Forbes, R. H. Figs. 22, 66, 83, 90, 117. 

 Gillette, C. P., Colorado Experiment Station. Fig. 178. 

 Greeley Commercial Club. Fig. 79. 



Harris, F. S., Utah Experiment Station. Figs. 16, 19, 26. 

 Jardine, W. M., Kansas Agricultural College. Fig. 73. 

 Jarvis, O. W., Superintendent, Southern Nevada Experiment 



Farm. Fig. 85. 

 Johnson Company, The, Salt Lake City. Figs. 14, 17, 82, 92, 94, 



171, 172, 179. 

 McLaughlin, W. W., Irrigation Investigations, United States 



Department of Agriculture. Figs. 52, 88, 151. 

 Ogden Commercial Club. Fig. 81. 

 Quinney, Jos. E. Jr., Fig. 75. 

 Redland's Commercial Club. Fig. 34. . 

 San Jose Commercial Club. Fig. 13. 

 Santa Clara Commercial Club. Fig. 89. 



Smith, George Otis, United States Geological Survey. Fig. 173. 

 Winsor, Luther M., Utah Experiment Station. Figs. 68, 80, 175. 



Grateful acknowledgment is made of the assistance 

 rendered by the above persons. 



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