202 



RAYMOND PEARL 



TABLE 15 



Shotving the results of all matings of class 7 d^ c? X class 6 9 9 

 fhU.fhUXfliLr.Fhh 



^ The record of the single 'Over 30' bird. 



TABLE 16 



Showing the results of all matings of class 7 cf cT unth all classes of 9 9 

 General Summary 



NUMBER OF INDIAaD- 



UALS INVOLVED IN | 

 MATINGS OF THIS TYPE l 



WINTER EGG PRODUCTION OF ADULT DAUGHTERS 



From these tables the following points would appear to be 

 definitely established: 



1 . The numbers of different individuals used as parents in these 

 matings and also the numbers of adult daughters obtained from them 

 are great enough to give an adequate test of the hypothesis under 

 discussion. In other words, we are not dealing here with the 

 results of a few matings, and a small offspring series. One hun- 

 dred and forty-six separate and distinct matings to test out males 

 of one gametic constitution must be regarded as an adequate 

 number. 



