NEW VOLUMES IN THE RURAL TEXT-BOOK SERIES 



IRRIGATION 



By JOHN A. WIDTSOE 



President of the Utah Agricultural College 



Illustrated, Cloth, i2mo 



Although much of the writing on irrigation has been from the engineering 

 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 

 hterature 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. 



WEEDS 



, By ADA E. GEORGIA 



Of the New York State College of Agriculture at Cornell University 



Illustrated, Cloth, i2mo 



A summary of our present knowledge regarding weeds as they affect horti- 

 cultural and agricultural practices. The relations of weeds to agriculture are 

 described, and the causes making certain plants weeds are explained. Every 

 separate species of weed known to occur in the United States or Canada is de- 

 scribed, and its range and habitat stated. The crops which each species partic- 

 ularly infests and the means of controlling each species are also discussed. 

 Between 300 and 400 original illustrations, made directly from the plants, 

 greatly enhance the practical value of this book. 



FIELD CROPS 



By GEORGE LIVINGSTON 



Assistant Professor of Agronomy, Ohio State University 



Illustrated, Cloth, i2mo, $ 1.40 net 



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 experiment, it 

 points out the " better way " of raising field crops ; of selecting the field ; of pre- 

 paring the soil ; of sowing the seed ; of cultivating the plant ; of harvesting the 

 crop. It is to be fully illustrated with reproductions from photographs of un- 

 usual excellence. 



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