After some discussion of the history of spiritualism in general and in the United States in particular, the authors give an abstract of the history of a young woman of thirty-three whose father, economically an unsuccessful man, had developed a spiritualistic religious philosophy. He singled out his daughter at an early age as 'psychic', and at five or six she had already a rich fantasy life in which she would converse with imaginary persons and animals. The psychosis, which the authors consider schizophrenic, was delusional and consisted in the belief that a certain man, several years her senior, had died and become a 'spirit', and in this form was continually visiting her, making sexual proposals and attacks,