350 MAiNi: AGRicuLTURAi, i;xpe;rimi;nt station. 19 1 2. 



Owing to limitation of space and for other reasons it has not 

 been possible to carry on the fecundity studies with this breed 

 on anything like the same scale as with the Barred Rocks. 

 Therefore the numbers here dealt with will be smaller than in 

 the previous section. They will be sufficient, however, to indi- 

 cate clearly the hereditary constitution of the material. Of the 

 possible types of C.I.G. $ $ in respect to fecundity as set forth 

 in table 7, two (class 2 and class 3) have actually been used 

 in pure Cornish matings (i.e., C.T.G. $ >< C.I.G. 2 ). 



Matings of a Cornish Indian Game male of class 2 (table 7). 

 This $ , no. 558, was hatched in the spring of 1Q08 and used to 

 head a pure Cornish pen in 1909. His breeding record indicated 

 that he was of class 2, with a constitution fL-il2. fhU. His breed- 

 ing history was as follows : 



Matings: A. With 5 ? ? indicated to be of class i (Table 8) = fUk. 

 FL,L 



2 Progeny 



Winter Production: Over ^^0 Undergo Zero 



Observed i 



Expected 10 



Mean winter production of aji 



? ? in indicated class 37-00 eggs 8.56 eggs 



B. With 2 ? 5 indicated to be of classes 2 or 3 = fkk. PL,k or fttk. 



2 Progeny 



Winter Production: Over 30 Under 30 Zero 



Observed o 5 3 



Expected 6 2 



Mean winter production of all 



2 5 in indicated class ...... 8.00 eggs eggs 



All ^ Progeny 



Winter Production- Overdo Undergo Zero 



Observed i 14 3 



Expected 16 2 



Mean winter production 37.00 S.36 eggs eggs 



The one bird recorded here as 'Over 30' laid but 37 eggs. 

 Her progeny show clearly and unmistakably that she did not 

 bear L=. That is to say, her record is a somatic fluctuation above 

 the 30 limit, and has no gametic foundation. 'The agreement be- 



