_Witchcraft._--The lesson which witchcraft teaches with regard to the validity of human testimony is the more remarkable because it was so long and so completely misunderstood. The belief in witches long passed--as well it might--as the culminant example of human ignorance and folly; and in so comparatively recent a book as Mr. Lecky's "History of Rationalism," the sudden decline of this popular conviction, without argument or disapproval, is used to illustrate the irresistible melting away of error and falsity in the "intellectual climate" of a wiser age. Since about 1880, however, when French experiments especially had afforded conspicuous examples of what a hysterical woman could come to believe under suggestion from others or from herself, it has begun to be felt that the phenomena of witchcraft were very much what the phenomena of the Salpêtrière would seem to be to the patients themselves, if left alone in the hospital without a medical staff. And in _Phantasms of the Living_, Edmund Gurney, after subjecting the literature of witchcraft to a more careful analysis than any one till then had thought it worth while to apply, was able to show that practically all recorded first-hand depositions (made apart from torture) in the long story of witchcraft may quite possibly have been _true_, to the best belief of the deponents; true, that is to say, as representing the conviction of sane (though often hysterical) persons, who merely made the almost inevitable mistake of confusing self-suggested hallucinations with waking fact. Nay, even the insensible spots on the witches were no doubt really anæsthetic--involved a first discovery of a now familiar clinical symptom--the _zones analgésiques_ of the patients of Pitres or Charcot. Witchcraft, in fact, was a gigantic, a cruel psychological and pathological experiment conducted by inquisitors upon hysteria; but it was conducted in the dark, and when the barbarous explanation dropped out of credence much of possible discovery was submerged as well. _Mesmer._--Again, the latent possibilities of "suggestion,"--though not yet under that name, and mingled with who knows what else?--broke forth into a blaze in the movement headed by Mesmer;--at once discoverer and charlatan. Again the age was unripe, and scientific opposition, although not so formidable as the religious opposition which had sent witches to the stake, was yet strong enough to check for the second time the struggling science. Hardly till our own generation--hardly even now--has a third effort found better acceptance, and hypnotism and psycho-therapeutics, in which every well-attested fact of witchcraft or of mesmerism finds, if not its explanation, at least its parallel, are establishing themselves as a recognised and advancing method of relieving human ills.