This is a straightforward and conventionally written account of the Christian conception of the Devil considered mainly in its relation to the Roman Catholic Church. The authors' point of view is that the Christian idea of the Devil is almost altogether distinct from that of previous demonic figures. He ascribes the genesis of the idea exclusively to theological argumentation. As to the cult of Satan, the theologians invented this simply by reversing the sacred doctrines and ceremonies. The authors even consider that almost all the witch beliefs were created by the theological interrogators.

The medical views expressed in the book are altogether old-fashioned. Hysterical symptoms are ascribed to veiled suggestion on the part of doctors, according to the view promulgated by Babinski. A great deal is made of the necessary co-operation between priests and physicians in