MEANING OF IRRIGATION 7 



methods of dry-farming will often be found to be as 

 effective and less expensive. 



10. Mission of irrigation and dry-fanning. Irriga- 

 tion and dry-farming go hand in hand in reclaiming the 

 great countries under a low rainfall, and in forever banish- 

 ing drought from the earth. In this volume the principles 

 underlying a rational practice of irrigation are discussed. 

 The dry-farming methods involved in irrigation are only 

 touched upon in passing, for they have already been some- 

 what fully discussed in another volume.* 



REFERENCES 



HENRY. Weather Bureau, United States Department of Agricul- 

 ture, Bulletin No. D. 



MEAD, ELWOOD. Irrigation Institutions. The Macmillan Company. 



NEWELL, F. H. Irrigation. T. Y. Crowell & Co. 



SMYTHE. WM. E. The Conquest of Arid America. The Macmillan 

 Company. 



WIDTSOE, J. A. Dry-Farming. The Macmillan Company (1910). 



*Widtsoe, J. A., Dry-Fanning: A System of Agriculture for Countries under a 

 Low Rainfall. The Macmillan Company, New York. 



