THE suggestions here put forward concerning personal (autopsychic) delusions are based on material of the same sort as that previously analyzed for a study of somatic and of environmental (allopsychic) delusions. Our conclusions are also influenced by two analyses of the types of delusion found in general paresis. Moreover, at a period subsequent to the analysis presented here, some work on fifth-decade insanities had been completed, and the delusional features constantly found in the functional cases of insanity developing at the climacteric, entered to modify our general point of view. The situation may be summed up as follows: The accessibility to analysis of the clinical and anatomical data at the Danvers State Hospital was such as to prompt the use of its card catalogues for statistical work upon delusions. The more so, because in a period of enthusiasm over the Wernickean trilogy (autopsyche, allopsyche, somatopsyche) of conscious phenomena, the Danvers catalogue had attempted to divide the delusions recorded into the three Wernickean groups. Putting these clinical data side by side with the anatomical data, we were speedily able to single out those cases with normal or normal-looking brains and thus to secure a group approximately composed of functional cases of insanity. It shortly developed, as to the CONTENT of delusions, that somatic delusions were exceedingly prone to parallel the conditions found in the trunk-viscera and other non-nervous tissues of the subjects at autopsy.) A subsequent study has confirmed this conclusion for the distressing hypochondriacal delusions found in climacteric insanities, which delusions, however distressing, are often far less so than the true conditions found at autopsy. And it may be generally stated that the clinician can get very valuable points concerning the somatic interiors of his patients by reasoning back from the contents of their somatic delusions. But how far can we, as psychiatrists, reason back from the contents of environmental delusions, e. g. those of persecution, to the actual conditions of a given patient's environment? In a few cases it seemed that something like a close correlation did exist between such allopsychic delusions and the conditions which had surrounded the patient--the delusory fears of insane merchants ran on commercial ruin, and certain women dealt in their delusions largely with domestic debacles. But on the whole, we could NOT say that, as the somatic delusions seemed to grow out of and somewhat fairly represent the conditions of the some, so the environmental delusions would appear to grow out of or fairly represent the environment.