INHERITANCE OF FECUNDITY IN DOMESTIC FOWL. 357 



Here, again, as in the case of $ 558 there are seen to be 

 several birds with winter records of over 30 eggs, when nop-e is 

 expected. 



C. With 3 ? ? indicated to be of class 7 = fkL,. FlU. ' 



$ Progeny 



Winter Production: Over jo Uniler jo Zero 



Observed • i 3 2 



Expected 3 3 



Mean winter production of all 



$ $ in indicated class 45 eggs 13.00 eggs o eggs 



All ^ Progeny. 



Winter Production: Over 30 Under 30 Zero 



Observed 7 16 3 



Expected 22.25 3-75 



Mean winter production 42.71 eggs 12.00 eggs eggs 



The seven birds with records 'Over 30" belong gametically to 

 the 'Under 30' class, and their records are somatic fltictuatiorts. 

 This is shown both by their history and by their behavior in F2, 

 all having been bred. 



Matings of C.I.G. S ^yS. This male has been shown from 

 his matings with pure Cornish females to belong to class 3 of 

 C.I.G. $ $ {= fhU. fUh). His matings with Barred Rock fe- 

 males are as follows : 



Matings: A. With 2 B.P.R. ? ? indicated to be of class 2 =: fL^Li. 

 FLA 



$ Progeny 



Winter Production: Over 30 Under 30 Zero 



Observed 3 



Expected 3 



Mean winter production of 

 daughters 6.33 eggs 



B. With I ? indicated to be of class 4 = fLJ.. FLA 



? Progeny 



Winter Production: Over 30 Under 30 Zero 



Observed i 4 



Expected 5 



Mean winter production of 



daughters in indicated class 42 eggs 11.00 eggs o eggs 



