IRRIGATION OF CEREALS 265 



WELCH, J. S. Irrigation Practice. Idaho Experiment Station, Bul- 

 letin No. 74 (1914). 



WIDTSOE, J. A., and MERRILL, L. A. Methods for Increasing the 

 Crop-producing Power of Irrigation Water. Utah Experiment 

 Station, Bulletin No. 118 (1912). 



WIDTSOE, J. A., and MERRILL, L. A. The Yields of Crops with 

 Different Quantities of Irrigation Water. Utah Experiment 

 Station, Bulletin No. 117 (1912). 



