That there is no uniform "epileptic character," that psychic epilepsy cannot be demonstrated solely on the basis of mental symptoms, and that essential epilepsy is a tenable diagnosis, are the main conclusions derived by Krisch from his studies of 200 cases of epilepsy. Of these, 140 were of the "genuine" type; the others were largely symptomatic. In a third to a fourth of the essential types a direct heredity was traceable, besides numerous instances of psychopathic manifestations in the collateral branches. The predominant fact in epilepsy is the inherited constitutional factor. Krisch presents detailed case histories of those cases showing interesting affective disorders and compares them with the symptoms of manic-depressive psychosis. The differences are attributed largely to the obscuring of consciousness in epilepsy which prevents the development of the "nuances" familiar in the affect syndromes of the "manic-depressive." The epileptic patient in his depression shows a less coherent