35^ MAINE AGRICULTURAL EXPERIMENT STATION. 1912. 



All ? Progeny. 



Winter Production: Over 30 Under 30 Zero 



Observed i 7 o 



Expected H 



Mean winter production 42 eggs 9.00 eggs 



There are no data from which to make sure whether the one 

 bird with an 'Over 30' record represented a fluctuation from the 

 'Under 30' class. It probably did, but this cannot be positively 

 asserted. 



Suininary of all Fi matings 



Putting together the results of the matings of all Cornish 

 Indian Game males with Barred Rock females, we have for the 

 actual observations : 



$ Progeny — Raza Data 



Winter Production: Over 30 Under 30 Zero 



Observed 12 58 6 



Expected 66.25 p.75 



Mean winter production 45-67 eggs 12.46 eggs o eggs 



In view of the fact that the 11 of the 12 birds with 'Over 30' 

 records represent somatic fluctuations from the 'Under 30' 

 class it is desirable to present another snminary table in which 

 the progen}^ are distributed in accordance with their gametic 

 constitution. 



$ Progeny on Gametic Basis 



Winter Production: Over 30 Under 30 Zero 



{UL.^ (U,) (hi) 



Observed i 69 6 



Expected '. . ■ . 66.2j 9 75 



The contrast between these distributions and those of the reci- 

 procal cross discussed before is veiy striking. Taken together 

 these reciprocal crosses support strongly the general hypothesis 

 of fecundity inheritance here being tested. 



Matings of the second cross-bred (P-A generation 



The Fi birds discussed in the preceding sections were mated 

 in all possible ways inter se and with the parent forms. The 

 results of these matings will be discussed in the present section. 



