The belief in witches, though not extinct in our country even to-day, affords examples of the converse of imposture, for in the majority of cases it was the superstitions of society which attributed powers of evil to innocent persons whose subsequent mock-trials and butchery made a public holiday for their so-called judges. The long-continued doubt as to the true sex of the Chevalier D’Eon shows how a belief, no matter how groundless, may persist. Many cases of recent years may also be called in witness as to the initial credulity of the public, and to show how obstinacy maintains a belief so begun. The Humbert case--too fresh in the public memory to demand treatment here--the Lemoine case, and the long roll of other fraudulent efforts to turn the credulity of others to private gain, show how widespread is the criminal net, and how daring and persevering are its manipulators. The portion of the book which deals with the tradition of the “Bisley Boy” has had, as it demanded, more full and detailed treatment than any other one subject in the volume. Needless to say, the author was at first glance inclined to put the whole story aside as almost unworthy of serious attention, or as one of those fanciful matters which imagination has elaborated out of the records of the past. The work which he had undertaken had, however, to be done, and almost from the very start of earnest enquiry it became manifest that here was a subject which could not be altogether put aside or made light of. There were too many circumstances--matters of exact record, striking in themselves and full of some strange mystery, all pointing to a conclusion which one almost feared to grasp as a possibility--to allow the question to be relegated to the region of accepted myth. A little preliminary work amongst books and maps seemed to indicate that so far from the matter, vague and inchoate as it was, being chimerical, it was one for the most patient examination. It looked, indeed, as if those concerned in making public the local tradition, which had been buried or kept in hiding somewhere for three centuries, were on the verge of a discovery of more than national importance. Accordingly, the author, with the aid of some friends at Bisley and its neighbourhood, went over the ground, and, using his eyes and ears, came to his own conclusions. Further study being thus necessitated, the subject seemed to open out in a natural way. One after another the initial difficulties appeared to find their own solutions and to vanish; a more searching investigation of the time and circumstances showed that there was little if any difficulty in the way of the story being true in essence if not in detail. Then, as point after point arising from others already examined, assisted the story, probability began to take the place of possibility; until the whole gradually took shape as a chain, link resting in the strength of link and forming a cohesive whole. That