A STUDY OF SELECTIONS FOR 



THE VARIATION AND INHERITANCE OF THE 



SIZE, SHAPE AND COLOR OF HENS' EGGS 



A THESIS 



PRESENTED TO THE FACULTY OF THE GEADUATE SCHOOL 0K 

 CORNELL UNIVERSITY 



FOR THE DEGREE OF 



DOCTOR OF PHILOSOPHY 



BY 



EARL WHITNEY BENJAMIN 



1914, 1920 



