COUNTRY LIFE EDUCATION 

 SERIES 



Edited by Charles William Burkett, recently Director 



of Experiment Station, Kansas State Agricultural 



College j Editor of American Agriculturist 



TYPES AND BREEDS OF FARM ANIMALS 

 By Charles S. Plumb, Ohio State University 



PRINCIPLES OF BREEDING 



By Eugene Davenport, University of Illinois 



FUNGOUS DISEASES OF PLANTS 



By Benjamin Minge Duggar, Cornell University 



SOIL FERTILITY AND PERMANENT 

 AGRICULTURE 



By Cyril G. Hopkins, University of Illinois 



Other volumes in preparation 



