68 HEREDITY IN RELATION TO EUGENICS 



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Fig. 32. — Pedigree chart illustrating the inheritance of feeble-mindedness. 

 In chart A, the central mating is of an alcoholic man with a normal woman 

 who died of tuberculosis. Of their 11 children, 5 are known to be normal, 

 the others died early. Then (B) this man married a feeble-minded woman 

 and of 7 children 3 are certainly feeble-minded, and 2 were, as young 

 children, killed at play, in a fashion indicating a lack of ability to avoid 

 ordinary dangers. Goddard, 1910. 



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Fig, 33. — Here a feeble-minded woman (of the first generation) has married 

 a normal man and has 4 normal children (except that 1 is alcoholic); then 

 she marries an alcohohc sex-offender (who is probably also feeble-minded) and 

 has 4 feeble-minded children. Here the mental strength of the first husband 

 brought the required strength into the combination, so as to give good children. 

 GODDAKD, 1910. 



