340 MAINE AGRICUI.TURAL EXPERIMENT STATION. I912. 



TABLE 21 



Showing the results of all matings of class j c? J' X class / ? $ 



fL.L, . fhL, X fL,L, . Fkh 



Number of Individ- 

 uals Involved in 

 Matings of This Type 



Winter Egg Production of Daughters 



C?C? 



99 



Class 



Over 30 j Under 30 



Zero 



Total adult 9 

 progeny 



2 



5 



Observed 

 Expected 



20 6 



21.75 7 . 25 



3 







29 



Mean wintei 

 in indicat 



• production of all 9 9 



56 . 90 eggs 24.17 eggs 



eggs 









TABLE 22 



Shelving the results of all matings of class 3^3 zoith 2 2 of all classes 



Number of Individ- 

 uals Involved in 

 Matings op This Type 



Winter Egg PRODUcnoN of Daughters 



dd 



99 • 



Class 



Over 30 



Under 30 



Zero 



Total adult 9 

 offspring 



2 



6 



Observed 

 Expected 



22 



24.25 



9 



9.75 



3 







34 



Mean wintei 

 in indicat 



- production of all 9 9 



55.09 eggs 



22.33 eggs 



eggs 









All matings of class 3 males are summarized in table 22. 



The evidence for the segregation of high and low fecundity, 

 as measured by winter egg production is quite as clear from the 

 matings of class 3 5 5 as from those of class 7 or class 4 $ $ 

 previously considered. 



Matings of Barred Plymouth Rock males of class 2. Four 

 males of this class were used in the experiments. None of them 

 got a large number of adult daughters. It will be noted from 

 table 9 that males of this class (gametic formula fLiL-i. fLih) 

 should produce daughters with winter records 'Over 30' and 

 'Under 30' in equal numbers regardless of the type of females 

 with which the mating is made. The only basis for classifying 

 the females in such matings is then the breeding behavior of 

 their progeny, and particularly their daughters. 



