THE INHERITANCE OF FAMILY TRAITS 75 



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Fig. 41. — The central mating in this chart is that of an epileptic man, 

 of a highly neuropathic strain, and a neurotic woman, whose sister and nephew 

 have had chorea or St. Vitus' dance. The product is 1 normal child, 1 

 epileptic, and 1 as yet only 7 years old. Abbreviations as in Figs. 38, 39. 



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Fig. 42. — The central mating is that of 2 normal parents, both of whom 

 belong to stock that shows evidence of being neuropathic. Doubtless some 

 of the germ cells of both parents are defective in mental strength. Along with 

 6 normal children appears 1 epileptic. Abbreviations as in Figs. 38, 39. 

 Figs. 37-43, are contributed by Dr. David F. Weeks. 



