52 



PIEBALD RATS AND SELECTION. 



TABLE 51. Fi offspring of the original "mutant" male, 4763, +5%, mated with females of the 

 plus series, and with the "mutant" female, 5153, 



TABLE 52. F\ offspring of the original mutant male, 476S,-^-5^, mated with females 



of the minus series. 



