BIOMETRICS 



169 



FIG. 73. 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 + h : 



The height of 



r m id -parent . , 

 first generation . . 

 second generation 

 third generation 

 Llast generation . . 



P + h 



P + o-62 h. 

 P + o-82 h. 

 P + o89 h. 

 P + 0-92 h. 

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