GENETICS 



IN 



RELATION TO AGRICULTURE 



BY 



ERNEST BROWN BABCOCK 

 it 



PROFESSOR OP GENETICS, UNIVERSITY OF CALIFORNIA 



AND 



ROY ELWOOD CLAUSEN 



ASSISTANT PROFESSOR OF GENETICS, UNIVERSITY OF CALIFORNIA 



FIRST EDITION 

 FIFTH IMPRESSION 



McGRAW-HILL BOOK COMPANY, INC. 



NEW YORK: 370 SEVENTH AVENUE 



LONDON: 6 & 8 BOUVERIE ST., E. C. 4 



1918 



