NEWEST ADDITIONS TO THE RURAL TEXTBOOK SERIES 



Edited by Professor L. H. BAILEY, 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, i2tno. 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, makes this 

 book not only an excellent text for college students, but also one which will be gen- 

 erally welcomed by all up-to-date agriculturists. All the animal manures, 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 which give rise to the various fermentations 

 taking place therein. The weli-known and also the new, nitrogenous manures such 

 as calcium cyanamid and calcium nitrate, are considered in detail. The chapters de- 

 voted to the potash salts, phosphates, lime, magnesia, soda, gypsum, iron, and man- 

 ganese are exceptionally complete, and chlorin, sulfur, silica, carbon disulfid, toluene, 

 and other substances exerting catalytic 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. 



Preparing 



Animal Husbandry 



By MERRITT W. HARPER, Assistant Professor of Ani- 

 mal Husbandry in the New York State College. 



Illustrated. Cloth, I2mo. Preparing 



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 



