Caspnr 



N 



d. UX< 



N 



d. 170.") 



N 



d. 1770 



The Lawful Wife 



(n> 



(N> 



(N> 



N 



The Xameless Feeble-Mindeil Girl 

 Xot Married i 



Martin 

 Kallikak. Sr, 



.1. 1S37 



N 



Frederick Martin 



Kallikak. Jr. 



N 



<H) 



Millard 



N 



<» 



Justin 



N 



^ 



kXot Married 



Martha 



N 



Deborah 



Fig. 167. Diagram outlining history of Kallikak family 



Squares stand for males, circles for females ; N for normal people, F for feel)le- 

 minded. Five generations on the side of the feehle-minded girl contain 480 indi- 

 viduals — 143 feeble-minded, 33 immoral, 24 drunkards, and 3 epileptics. On the 

 normal side are 496 descendants, none of whom are feeble-minded. After Goddard 



342 



