46 



HEREDITY IN RABBITS, RATS, AND MICE. 



TABLE 31. Grade distribution of young sired by English male 2711, grade 4, generation 1, 



ancestor of all English in the selection series. 

 A. MOTHER ENGLISH. 



B. MOTHER SELF. 



TABLE 32. Grade distribution of young sired by English male 5086, grade 4%, generation 1 4- 



A. MOTHER ENGLISH. 



