TABLES. 



115 



Table 38. 



Maiings of i wild females, heterozygous in 

 the extension factor, with guinea-pig 

 males lacking it. 



Table 39. 



Maiings of \ wild females with guinea-pig 

 males, in which one parent is heterozygous 

 in the extension factor and the other 

 parent lacks it. 



Table 40. 



Maiings of ^ wild females with guinea-pig 

 males, in which one parent is heterozygous 

 in the extension factor and the other 

 parent lacks it. 



Table 42. 



Summary of Tables 38-41, in which we expect an equality 

 of animals of extended pigmentation and restricted 

 pigmentation. 



Table 41. 



Matings of ^2 unld and ^ mid females 

 with guinea-pig males, in which one 

 parent is heterozygous in the exten- 

 sion factor and the other parent 

 lacks it. 



