Wittkower studied briefly the personalities of patients with seborrhoea, psoriasis, and pompholyx and came to the following conclusions: the seborrhoeic patients usually present an obsessional picture with a compulsive urge to work, perfectionistic trends, ambivalence and fear of aggressiveness; those with psoriasis do not seem to be bound to any specific personality pattern but many manifested clear-cut evidence of emotional disturbance; most of the pompholyx patients revealed a mixture of hysterical and obsessional characteristics. The author studied two hundred thirty-six such patients in interviews of about two hours each. His findings, therefore, are subject to the limitations of this method of investigation.