NEW VOLUMES IN THE RURAL TEXT-BOOK SERIES 
IRRIGATION 
By JOHN A. WIDTSOE 
President of the Utah Agricultural College 
Illustrated, Cloth, r2mo 
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 
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. 
WEEDS 
By ADA E. GEORGIA 
Of the New York State College of Agriculture at Cornell University 
Illustrated, ‘Cloth, 12mo 
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 4oo 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, 12mo, $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. 
THE MACMILLAN COMPANY 
Publishers 64-66 Fifth Avenue New York 
