NEW VOLUMES IN THE RURAL TEXT-BOOK SERIES 



The Principles of Irrigation Practice 



BY JOHN A. WIDTSOE 



President of the Utah Agricultural College 



Ilhistrated, Cloth, isrno, $1.75 



Although much of the writing on irrigation has been from the engi- 

 neering point of view, this book is written distinctly from the point of view 

 of practical farming. President Widtsoe has drawn not only upon his 

 own intimate knowledge of conditions in an irrigated country, but also 

 upon all the available literature on the application of water to land for 

 irrigating purposes. The effect of water on the soil, the losses by seepage 

 and evaporation, the service that water renders to the plants, and the 

 practical means of employing water for the growing of the different crops 

 are all discussed clearly and thoroughly. 



Field Crops 



BY GEORGE LIVINGSTON 



Assistant Professor of Agronomy, Ohio State University 



Illustrated, Cloth, I2io, $1.40 



This text is intended to meet the needs of agricultural high schools and 

 of brief courses in Field Crops in the colleges. Based on actual experi- 

 ment, it points out the "better way" of raising field crops ; of selecting 

 the field ; of preparing the soil ; of sowing the seed ; of cultivating the 

 plant ; of harvesting the crop. It is to be fully illustrated with reproduc- 

 tions from photographs of unusual excellence. 



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