inheritance; oi*' fecundity in domestic eowIv. 333 



C. With 4 ? ? indicated to be of class I = /L^L^. Fkh. 



5 Progeny 



Winter Production: Overgo Under 30 Zero 



Observed 52 6i i 



Expected 4.9 6.5 1.6 



Mean winter production of $ ? 



in indicated class .• 44.60 eggs 8.00 eggs o eggs 



D. With 3 ? ? indicated to be of class 4 — fL^k- PLJ,. 



$ Progeny 



Winter Production: Over 30 Under 30 Zero 



Observed 3 3 o 



Expected s .? 



Mean winter egg production of 



? ? in indicated class 45-33 eggs 7.33 eggs eggs 



All 2 Progeny 



Winter Production: Over 30 Under 30 Zero 



Observed 12J 152 4 



Expected ■ 11.65 -f^' 4-35 



Mean winter production 53-58 eggs 7.60 eggs eggs 



The agreement between observation and expectation is plainly 

 very close here. The three fecundity classes are represented 

 and in proportions as near to those indicated by hypothesis as 

 could be expected, considering the numbers involved. 



B.P.R. $ 5(5(5, Indicated constitution — fL,L^.. fUh. 



This bird was used in the breeding pen in the season of 19 10, 

 having been hatched in the spring of the previous year. His 

 sire was $ D556, a class 4 male to be taken up later, and his 

 dam a class 2 female. His breeding history was as follows : 



Matings: A. With, 5 ? $ indicated to be of class i = /L/... PlJ.. 



? Progeny 



Winter Production: Over 30 Under 30 Zero 



Observed 4 8 2 



Expected 5.i' / J.8 



■Mean winter egg production of 



? $ in indicated class 35-00 eggs 20,50 eggs o eggs 



