310 MAINE AGRICULTURAL EXPERIMENT STATION. IQI2. 

 TABLE 9— Continued 



Matings. 



Expected Distribution op Fecunditt Among 

 9 Progeny of the Designated Mating. 



Daughters with alDaughters with i Daughters with 

 B. P. R. (J' of olassJB. P. R. 9 of class A'inter production! a winter ' a winter 



over SO eggs ■ production of production of 

 under SO eggs • zero eggs 



9 



All classes 



Totals = 



1 



16 



16 





9 



All classes 



Ratio = 



01 



1 



1 





All classes 



All classes 



Grand 

 Total = 



120 1 



160 



40 



All classes 



All classes 



Ratio = 



31 



4 



1 





Since the acfiial breeding operations were carried out in ad- 

 vance of any understanding of the mechanism of the inheritance 

 of fecundity the matings were substantially at random so far as 

 -concerns fecundity factors. As a consequence not all possible 

 gametic pairings have been made, while for certain combinations 

 a relatively large number of offspring are available. Enough of 

 the possible gametic combinations have, however, been made 

 with Barred Rocks to show clearly how fecundity is inherited. 



A word should be said in regard to the number of offspring 



TABLE 10 



Shozving the theoretical expectation in respect to the fecundity of the 

 daughters from all possible matings of Cornish Indian Games inter 

 se ' 



Mating 



Expected Distribution of Fecundity Among 

 9 Progeny of the Designated Mating 



C. I. G. c? of class 



Daughters with a 



winter record of 



over 30 eggs 



Daughters with 



a wiater 



record of 



under 30 eggs 



Daughters with 

 a winter 

 record of 

 zero eggs 



1 



All classes 



Ratio = 



01 



1 







2 



1 to 4 inclusive 



Totals 



1 



9 



3 



2 



All classes 



Ratio = 



01 



3 



1 



3 



1 to 4 inclusive 



Totals 



1 



6 



6 



3 



All classes 



Ratio = 



01 



1 



1 



All classes 



All classes 



Grand totals 



1" 



27 



9 



1 



Ratio = 



C| 



3 



1 



