Dav«nport and Wekks : Inheritance of Epii,epsy 



19 



in the fraternities all normal parents must belong to defective 

 strains. In twenty-six of the families something is known con- 

 cerning more than two relatives of the normal parent. Two other 

 fraternities are included because they have known defect (Table 

 C). Of these 28 families of normal parents of epileptic children 



6 B@S feflS]($)QO ^ 



"-^pm. 



Fig. 28. The central mating is between a normal woman (one of 

 whose sisters has a neurotic child) and an alcoholic man of a frightfully 

 bad strain. He deserted his wife and children. His eldest brother (the 

 only one who grew up) was also a sot. Their father was insane (melan- 

 cholic ?) and committed suicide and had an insane brother and a feeble- 

 minded nephew, and their mother was one of three epileptic sibs and 

 belonged to a deaf-mute strain. Despite the bad protoplasm of the 

 father's side, in the central mating the strong germ cells of the mother 

 result in two normal children, but the first child is neurotic and the 

 second an epileptic at State Village. Case 1006. 



iRnffin 



Fig. 29, This chart illustrates many principles. The central mating is 

 that of a normal X alcoholic with one of the children normal ; the other 

 defective. There are in one branch of this family two F X F mating 

 with eight feeble-minded children and none normal ; and in the midst of 

 this branch of the family (lower, right) is an N X N mating with five 

 normal offspring and one (the eldest) neurotic. Case 1745. 



every one shows evidence of mental weakness. In nineteen of 

 these at least one relative is either epileptic, imbecile or insane ; in 

 five others there is migraine or other form of neurosis; in two 

 others there have been two relatives each with paralysis ; in one of 

 the remaining two families there is an alcoholic relative and in 

 the other one alcoholic and one criminalistic. It would seem to 



