182 



WEEKS— HEREDITY OF EPILEPSY 



[April 19, 



In analyzing our data, we have classed it under the six kinds of 

 matings, as follows : 



NULLIPLEX X NULLIPLEX. 



There are twenty-seven fraternities in which both parents are 

 either epileptic or feeble-minded; 16 of these matings are principal 

 matings and 11 secondary matings. 



In three of the matings both of the parents were epileptic. Of 

 the 28 conceptions, two were stillbirths, 3 miscarriages, 3 died before 



Q 



O 



Q-r4& 



AT 



up li] E © 

 <®Sl (§m (§M 





a 



Fig. 4. This chart shows the offspring in a case where both the father 

 and mother were feeble-minded; the father was alcoholic and died of tuber- 

 culosis, while the mother was sexually immoral and was the illegitimate child 

 of a feeble-minded woman. There were seven children; one, the sixth, is 

 thought to be by a dififerent father; of the others five are feeble-minded and 

 one is epileptic. After the father's death the mother married a feeble-minded 

 man, who is the younger brother of her daughter's feeble-minded husband. 

 E, epileptic; F, feeble-minded; A, alcoholic; T, tubercular; Sx, sexually 

 immoral; A^, normal; ■ — , illegal union. Case 3,037. 



two years of age, and one (an infant) is too young for classification, 

 leaving 19 about whom something definite is known. Of these, 8 

 were epileptic, 3 feeble-minded, and 8, who came from parents who 

 developed epilepsy late in life, were tainted. (Fig. i.) 



In -fifteen fraternities in which one parent is epileptic and the 

 other feeble-minded, there were 81 conceptions; 7 were too young 



