NEWEST ADDITIONS TO THE RURAL TEXT-BOOK SERIES 



Edited by Professor L. H. BAILEY 

 Formerly Director of the New York State School of Agriculture at 

 Cornell University ' 



Manures and Fertilizers 



By H, J. WHEELER, Ph.D., D.Sc. Formerly Director of the 



Rhode Island Experiment Station. 



Illustrated, Cloth, 12mo. Preparing 



The clear and unusually full discussion of the practical utilization of manures 

 and fertilizers of all kinds, and of their relations to the plant and to the soil, rnakes 

 this book not only an excellent text for college students, but also one which wiU be 

 generally welcomed by all up-to-date agriculturists. All the animal m&nures, litter 

 and waste nitrogeneous materials of every sort are discussed. A helpful feature for 

 the student is the extended treatment of the availability of organic nitrogen and of 

 the organisms contained in barnyard manure wiiich give rise to the various fer- 

 mentations taking place therein. The well-known and also the new, nitrogenous 

 manures such as calcium cyanamid and calcium nitrate, are considered in detail. 

 The chapters devoted to the potash salts, phosphates, lime, n^agnesia, soda, gyp- 

 sum, iron, and manganese are exceptionally complete, and ohlorin, sulfur, silica 

 carbon disulfid, toluene, and other substances exerting catalj'tic and other effects 

 are described. Much of the material in this book, which will be new to students and 

 other readers, has suggested itself to the author in the course of twenty-two years 

 of continuous research. 



Corn Crops 



By E. G. MONTGOMERY, Professor of Farm Crops in the 

 College of Agriculture at Cornell University. 



Illustrated. Cloth, l$ino, $1,60 net 



This is a text-book on com and the sorghum crops, including the grain sorghums, 

 the sweet sorghums for syrup or forage, and the broom corns. In it plant structures, 

 physiology, and the other technical phases of the subject are separated from the 

 more practical phases which might be classed as cultural methods. Hence, the 

 entire book is adapted to use as a text in an advanced course, and the treatment 

 of cultural methods is adapted to use in more elementary courses. The book is also 

 an excellent handbook for farmers and others interested in the production or hand- 

 ling of corn or sorghums. 



Animal Husbandry for Schools 



By MERRITT W. HARPER, Assistant Professor of Animal 



Husbandry in the New York State College. 



Illustrated. Cloth, ISmo, $1.40 net 



This IS a simple, concrete presentation of the essential facts concerning farm 

 animals, adapted for use in secondary schools. 



THE MACMILLAN COMPANY 



PUBLISHERS 64-66 Fifth Avenue NEW YORK 



