48 HEREDITY IN RABBITS, RATS, AND MICE. 



TABLE 35. Grade distribution of young sired by English male 6370, grade 5, generation 3. 



TABLE 36. Grade distribution of young sired by English male 6420, grade 4 I, generation 3. 



TABLE 37. Grade distribution of young sired by English male 6071, grade 5, generation 3% 



