I9I2.] 



ANALYZED BY THE MENDELIAN METHOD. 



181 



history obtained from the patient or his guardian at the time of his 

 admission to the institution, and we are convinced, justifies careful 

 study, which is more than can be said of the former history. 



This study is based on 397 separate pedigrees of this number, 

 however, seven came from the same fraternity ; in another three are 

 from the same fraternity and their mother is also a patient in the 

 institution. In four other cases, two patients are from the same 

 fraternity, and besides these, four others have been found to be 



jAjDO-r® 



^SSx. 



[i5>lJlS0li55 





Fig. 3. The central mating in this case is that of a feeble-minded man 

 and an epileptic woman. The man had an epileptic brother, who in turn had 

 a feeble-minded son, while the woman came from an insane mother and had 

 a feeble-minded uncle. There were six children; the first died in infancy, the 

 second and fourth were feeble-minded, the third was epileptic, the fifth is a 

 feeble-minded boy, who is at The State Home for Boys, while the last is 

 also feeble-minded, and he is cared for at a Children's Industrial Home. 

 The mother and father are dependent on the town for support, the mother's 

 mother died in the State Hospital for the Insane. This mating is of the 

 type nuUiplex X nuUiplex. E, epileptic; F, feeble-minded; /, insane; A, 

 alcoholic; N, normal. Case 4,369. 



related, thus connecting their pedigree with others already acquired, 

 so that only 381 different families are involved in our study. 



The frequency with which the same name occurs on many of 

 the charts indicates that there is little doubt but that future study 

 will determine their relationship and show some of these to be of 

 the same blood. 



The total number of epileptics recorded on the charts was 756, 

 which was 3 per cent, of the total chart population of 21,558, or 9 

 per cent, of the 8,698 classified individuals. 



