10 



C. B. DAVENPORT 



results of this mating are shown in table 6. The numbers of 

 offspring obtained were small. To the right is given the approx- 

 imate numerical result. 



4. THE NEW CASE OF A SEX-LIMITED CHARACTER IN POULTRY 



1. Material employed 



In my experiments I used poultry belonging to the Brown Leg- 

 horn and the Dark Brahma races — two races that have very dis- 

 similar plumage colorations and exhibit a sex-dimorphism in 

 pattern and coloration. They are, consequently, well adapted 

 to testing again the behavior of sex-limited characters in fowl. 

 The points of difference considered in the two races are indicated 

 in table 7 both for the males and the females. 



TABLE 6 



