haunting forest dells and mountain streams by day, approaching human habitations by night and waiting for opportunities to lure him back to the old worship or to take vengeance upon him for his recreancy. Every untoward event furnished an occasion for their intervention, which could be averted or repelled only by the benedictions, exorcisms or anathemas of the Church. The ecclesiastical authorities were therefore directly interested in encouraging this superstitious belief as one of the chief sources of their power, and it was for this reason that diabolical agencies were assumed to be at work in every maleficent force of nature and to be incarnate in every noxious creature. That this doctrine is still held and this policy still pursued by the bishops and other clergy of the Roman Catholic Church, no one familiar with the literature of the subject can deny. Besides the manuals and rituals already cited, consult, for example, _Die deutschen Bischöfe und der Aberglaube_: Eine Denkschrift von Dr. Fr. Heinrich Reusch, Professor of Theology in the University of Bonn, who vigorously protests against the countenance given by the bishops to the crassest superstitions. For specimens of the literature condemned by the German professor, but approved by the prelates and the pope, see such periodicals as _Monat-Rosen zu Ehren der Unbefleckten Gottes-Mutter Maria and Der Sendbote des göttlichen Herzens Jesu_, published by Jesuits at Innsbruck in the Tyrol. It is a curious fact that the most recent and most radical theories of juridical punishment, based upon anthropological, sociological and psychiatrical investigations, would seem to obscure and even to obliterate the line of distinction between man and beast, so far as their capacity for committing crime and their moral responsibility for their misdeeds are concerned. According to Lombroso there are _i delinquenti nati fra gli animali_, beasts which are born criminals and wilfully and wantonly injure others of their kind, violating with perversity and premeditation the laws of the society in which they live. Thus the modern criminologist recognizes the existence of the kind of malefactor characterized by Jocodus Damhouder, a Belgian jurist of the sixteenth century, as _bestia laedens ex interna malitia_; but although he might admit that the beast perpetrated the deed with malice aforethought and with the clear consciousness of wrong-doing, he would never think of bringing such a creature to trial or of applying to it the principle of retributive justice. This example illustrates the radical change which the theory of punishment has undergone in recent times and the far-reaching influence which it is beginning to exert upon penal legislation. In the second part of the present work the writer calls attention to this important revolution in the province of criminology, discussing as concisely as possible its essential features and indicating its general scope and