mon use to produce sleep, or visions, or nerve excitement, or abortion, or to cure sterility and impotence. The notion that any desired result could be reached by swallowing something, especially if it was nasty, had scarcely any limits. Somnambulists were often supposed to be caught on their way to the witches' sabbath. Friedmann testifies, from his own experience as a physician, that hallucinations by night, but waking, occur in the case of elderly persons, especially females; they are nervous excitements due to slight decrease of mental power, such as a layman would hardly notice, and grotesque figures or black men are the most common forms of these frightful illusions.[1] "Witchcraft depended on general causes and represented the prevailing modes of religious thought."[2] "Witch-persecution is a problem in the history of civilization which, although it may now be regarded as settled, yet has closer connection with our time than one might think upon only superficial consideration. The elementary notions on which the delusion was based are even yet continued in the doctrines of almost all the accepted religious systems."[3] Witchcraft issued out of the most ancient and fundamental popular faiths, and it seized on all which the religion offered and appropriated it. Then it produced such imitations as the perverted mass idea, and the notion that Satan begot Merlin, the magician in the Arthur legend, with a virgin woman.[4] The interlacing of witchcraft with popular world-philosophy and life-policy is evident at every step, and the contributions of suggestion are easily seen. Its combination with criminal purposes and acts must never be overlooked, for private malice and enmity, the desire to extort money, and various political and personal