DOMESTICATED 

 ANIMALS AND PLANTS 



A BRIEF TREATISE UPON THE ORIGIN AND 



DEVELOPMENT OF DOMESTICATED RACES 



WITH SPECIAL REFERENCE TO THE 



METHODS OF IMPROVEMENT 



BY 



E. DAVENPORT, M.Agr., LL.D. 



PROFESSOR OF THREMMATOLOGY IN THE UNIVERSITY OF ILLINOIS 



DEAN OF THE COLLEGE OF AGRICULTURE 



DIRECTOR OF THE AGRICULTURAL EXPERIMENT STATION 



GINN AND COMPANY 



BOSTON • NEW YORK • CHICAGO • LONDON 



