Study of Selections for Size, Shape, and Color of Hens' Eggs 305 



TABLE 120 (.concluded) 



DISCUSSION OF RESULTS 



The results of these studies are neither in entire accord nor in entire 

 discord with any of the important studies of the same factors made by 

 other workers. Up to the present time no extensive work has been 

 reported on Single Comb White Leghorn material. So far as is known 

 by the writer, no other study of these particular factors has been made 

 with similar lines of inheritance over as long a period as is here reported. 



The studies have been made with vitally important commercial factors 

 in a commercial breed. It is especially incumbent on the eastern pro- 

 ducer to excel in the production of these desired factors in order to compete 

 with more distant production. Therefore the fact indicated by these 

 studies, namely, that the characters in question are distinctly inherited, 

 should be gratifying and encouraging to commercial poultrymen who 

 have been working for years along these lines. 



The inheritance of the characters studied seemed to be thru the medium 

 of both the male and the female parent. The writer found no evidence 

 of distinctly sex-linked factors, such as were observed by Pearl (1912) 

 and by Hadley (1913). According to the writer's results, benefit to the 

 flock can be gained for any of these inherited characters by adding either 

 better males or better females to the flock. 



The relation of an individual egg to the mean type produced by the 

 parent bird, and the relation of the type of egg incubated to the mean 



