BIOMETRICS 



169 



Fig. -ji. — Law of Ancestral Inheritance. 

 {From J. A. Thomson, "Heredity.") 



be much less than the original mid- parent. If the original 

 mid-parent differed from the mean population by h, his 

 height would be P + A : 



I mid-parent 

 first generation . . 

 second generation 

 third generation 

 last generation . . 



V + h 



P-l-o-62 //. 

 P-f-O-82 //. 

 P-fo-Sg h. 

 P -|-0'92 h. 

 22 



