T h e total number of patients upon which this study is based is 65. O f these 36 were undoubtedly psychotic, the remaining 29 being regarded as psycho-neurotic or psychopathic personalities. The only basis of selection has been the possibility of obtaining reliable information about their personalities and mental state. The psychotics are made up as follows :

Male Female Total Affective Psychosis 20 3 23 Schizophrenia . . 10 3 13

It will be seen that only 6 are females. This is the result of particular circumstances, but, since personality differs somewhat between the sexes, it must be taken into account when conclusions are drawn.