TABLES. 



53 



Table S3.— Classification of the descendants through three generations of the two original 

 mutants, c?47'63,+5J, and 9 B153,+6i. The parents are in every case of grade 6i or 5f . 



Table 54.— ft 



0/ ZAe original mutant male, 4783, +5^, mated with females of the 

 plus series. {Compare Table 51.) 



