inheritance; 01^ fe;cundity in domestic eowe. 335 



C. With I ? indicated to be of class 4 = fLik- FLJ^. 



$ Progeny 



Winter Production: Over 30 Undergo Zero 



Observed 2 2 o 



Expected 2 2 



Mean winter production of ? $ 



in indicated class 40.50 eggs 23.00 eggs 



All 5 Progeny 



Winter Production: Over 30 Under 30 2' era 



Observed 7 12 i 



Expected 8 10 2 



Mean winter production 4743 eggs 16.25 eggs o eggs 



While the famihes in this case are small, the evidence of seg- 

 regation in about the expected proportions is clear. 



B.P.R. $ 55(5. Indicated constitution — /L-X2. fLU. 



This male was hatched in 1908 and used in the breeding pens 

 in 1909. He proved a good breeder and got a fairly large num- 

 ber of adult daughters which were tested in respect to fecundity 

 in the laying year 1909-10. As noted above he was the sire of 

 class 4 $ 566. The breeding history of $ 556 follows. 



Matings: A. With 4 ? ? indicated to be of class i — fL^Lr. FIJ.- 



5 Progeny 



Winter Production: Over 30 Under 30 Zero 



Observed 8i loi 4 



Expected 8.6 11. 5 2.9 



Mean winter egg production of 

 all daughters in indicated 

 class 43.75 eggs 19.60 eggs eggs 



V. With 9 $ ? indicated to be of class 2 =; fL,L^.. PL,L. 



2 Progeny 



Winter Production: Over 30 Under 30 Zero 



Observed lol loi 



Expected JO. 5 10.5 



Mean winter egg production of 

 all daughters in indicated 

 class 47.00 eggs 19.60 eggs 



