The idea of lycanthropy has probably been familiar to the peasants of Greece continuously from the earliest ages down to the present day, either surviving traditionally like so many other beliefs, or possibly stimulated by actual experiences; for lycanthropy is not a mere figment of the imagination, but is a very real and terrible form of madness, under the influence of which the sufferer believes himself transformed (and by dress or lack of it tries to transfigure himself) into a wolf or other wild animal, and in that state develops and satisfies a craving for human flesh. Outbreaks of it were terribly frequent in the east of Europe during the Middle Ages, especially among the Slavonic populations; and it is not likely that Greece wholly escaped this scourge. But whether the idea received some such impetus or no, it was certainly known to the ancient Greeks, and is not wholly forgotten at the present day. This was curiously betrayed by some questions put to an American archaeologist by an Arcadian peasant. Among the items of falsehood vended as news by the Greek press he had seen, but owing to the would-be classical style had failed to understand, certain allegations concerning the cannibalistic habits of Red Indians; and the points on which he sought enlightenment were, first, whether they ran on all fours, and, secondly, whether they went naked or wore wolf-skins. In effect the only form of savagery familiar to his mind was that of the werewolf. Now here, it might be thought, is the clue by which to explain the first conclusion which we reached, namely, that the Callicantzari were originally men capable of transformation into beasts. The name λυκοκάντζαρος or werewolf, it might be urged, involved the idea of such transformation; and the idea originally associated with the one species was extended to the whole tribe of Callicantzari. At first sight such an explanation is attractive and appears tenable; but maturer consideration compels me to reject it.