224 RAYMOND PEARL 



Matings: A. With 4 9 9 indicated to be of classes 2 or 3 = //1/2 . FLih or 

 JLih Fhh. 



9 Progeny 



Winter Production: Over 30 Under 30 Zero 



Observed 1 9 8 



Expected 9 9 



Mean winter production of all 



9 9 in indicated classes 39.00 eggs 13.11 eggs eggs 



B. With 1 9 indicated to be of class 4 = fhh • Fhh. 



9 Progeny 



Winter Production: Over 30 Under 30 Zero 



Observed., 4 



Expected 4 



Mean winter egg production of 



all 9 9 in indicated class eggs 



All 9 Progeny 



Winter Production: Over 30 Under 30 Zero 



Observed 1-9 12 



Expected 9 13 



Mean winter production 39 .00 eggs 13 . 11 eggs eggs 



Here again as in the previous case the single 'Over 30' record 

 is a somatic fluctuation, with gametic significance. Leaving 

 this out of account, or rather putting it in the ' Under 30' class 

 where it belongs, the agreement between observation and expec- 

 tation is very close. 



Summary of results of Cornish Indian Game matings 



Summarizing all pure Cornish matings which involved 2 cf cf 

 and 20 9 9 (C.I.G. cf X C.I.G. 9) we have the following results: 



All 9 Progeny 



Winter Production: Over 30 Under 30 Zero 



Observed 2 23 15 



Expected 25 15 



Mean winter production 38.00 eggs 10.22 eggs eggs 



