96 THE PEEBLY INHIBITED. 



tional psychoses are dependent on a recessive factor, and Rudin (191 1) 

 confirms this conclusion for certain forms of dementia precox in certain 

 famiUes, but thinks many manic-depressive disturbances in many 

 famiUes suggest a dominant method of inheritance. Jolly (19 13, 

 p. 270) finds that for affective psychoses, the hjrpothesis of a simple, 

 dominant heredity must be rejected; but it seems to him that a sex- 

 linked heredity is not excluded, also it is possible that there may be a 

 recessive method of heredity ; and for dementia precox a simple reces- 

 sive heredity may hold. Wittermann (1913, p. 264) concludes that the 

 predisposition to dementia precox is recessive. That there is a differ- 

 ence in the nature of the hereditary factors in emotional and demential 

 psychoses is indicated by many additional facts. Thus Jolly (1913) 

 finds that a manic-depressed parent is twice as apt to have insane 

 offspring as a schizophrenic parent. In 7 "manic-depressive" famiUes 

 studied by Schuppius, in which at least one parent was known, one 

 parent was "insane" in i case; "depressed," 2 cases; inclined to 

 suicide, i case; peculiar, i case, and a senile dement, i case. Also in 

 the instance where a parent was "insane," 2 manic children had 3 

 "insane" offspring. In a case studied by Albrecht (1912, p. 564), 

 mother and daughter both have manic excitation ; in another family a 

 "queer" mother has a restless, Utigatious son who, by a neurasthenic 

 wife, has a nomadic, excitable daughter who has occasionally epileptic 

 attacks; in another family the mother shows hypomania and later 

 full mania and her daughter had a marked manic attack; in another 

 family (p. 566) the mother at 58 broke out, sang, prayed; in the hos- 

 pital she had impulsions to move and talk; she tore up laundry, heard 

 the voice of Jesus, etc. ; her daughter, at 21:, ran from the house crying; 

 prayed and heard voices. Mobius (1884) gives several pedigrees like 

 this: first generation, man died of delirium tremens at 50 years. His 

 daughter was excitable, energetic, somewhat fantastic. Of her 4 chil- 

 dren who grew up, i is excitable, fantastic; 1 has fits of temper and 

 melancholic spells; and i other (a son) has a bad temper. Of the 

 latter by an hysterical woman 2 out of 4 children had convulsions in 

 childhood, and i of them died in the fits. Again, an intelHgent but 

 peculiar, nervous, choreic man by a normal woman of neuropathic 

 stock has (a) an hysterical daughter who has 2 "hysterical" and i 

 nervous-excitable children; (b) an hysterical daughter whose daughter 

 in tiun is nervous; and (c) a son of variable mood, all three of whose 

 children are nervous, one also "excitable," and one with a tendency to 

 melanchoha. Again, a man, who had anxious attacks, by a normal 

 wife had (a) a peculiar daughter who had 3 nervous children (i with 

 mania) ; also (b) a nervous daughter who married her nephew and had 

 a daughter who is chronically insane. In all these cases we have to 

 do with nervousness that does not skip a generation — and it is of the 

 dominant type, i. e., hysteria and mania — either simple or combined 

 with depressions. In Wittermann's work there are some families with 



