THE EFFECT OF THE AGE OF SIRE 



AND DAM ON THE QUALITY OF 



OFFSPRING IN DAIRY COWS 



A THESIS 



PRESENTED TO THE FACULTY OF THE GRADUATE SCHOOL 

 OF CORNELL UNIVERSITY IN PARTIAL FULFILLMENT 

 OF THE REQUIREMENTS FOR THE DEGREE OF 



DOCTOR OF PHILOSOPHY 



Ti.t 



BY 



CHARLES LORING ALLEN 



ii 



1920 



Reprinted from THE JOURNAL OF HEREDITY (Organ of the American Genetic 

 Association), Vol. XIII, No. 4 ; Washington, D. C., April, 1922. 



