FURTHER DATA ON THE MEASUREMENT OF INBREEDING. 23I 



PEDIGREE TABLE III (HYPOTHETICAL). 



To Illustrate the Mating of Uncle X Niece. 













u 











I m 1 



V 









'9 



w 











y 









"o 



' 



h 1 



m 



n 











> 



z 













I 







\ a 







J 





m 

 n 

 

 P 











L'^ 





9 













1: 1 



h 











^y 



2 













3 



X 



-< 









\9. ^ 



m 



n 











r '^ 

















yh 



P 











r^ 



-< 



)' ■ 



9 

 h 







b 



, 







(i 



r 

 9 













\ ^ 



h 











r ^ 



) 



id 











./ 



-s 





c 











{' 



d 









I ^ 





t 











(i 



Generation number 





I 



- 





3 



4 ! 5 



i 





The values of the coefficients of inbreeding for uncle X niece 

 mating are given in Table 2. 



TABLE 2. 



Values of Coefficients of Inbreeding for Continued Uncle X 



Nifce Mating. 



Number of Ancestral Generations 

 I 



Coefficient 



Zo 



Z. 

 Z= 

 Z3 

 Z4 

 Z5 

 etc. 



4 

 5 

 6 

 etc. 



Value of Coefficient 

 

 

 25.00 

 50.00 

 68.75 

 81.25 

 etc. as in Table I 



