The propriety of trying alleged witches by water, has been impugned and defended with abundance of scholastic learning; and, singular to say, its opponents have been chiefly found among the Roman Catholic writers, and its advocates among the Reformers. Delrio, by far the most learned of all the writers on demonology, vigorously assails Rickius, the only notable Roman Catholic advocate of the practice. The arguments on both sides being based entirely on scholastic definitions and distinctions respecting the nature of demons, and the baptismal and other spiritual virtues of water, are of little relevance in the present method of discussing physical phenomena. Both parties assume that the persons of witches exhibit a preternatural levity—Delrio admitting that something less than fourteen or fifteen pounds was the actual weight which popular belief throughout Germany ascribed to persons in that possessed state, no matter how large or fat they might seem to the eye; and Rickius gives an example of a woman, executed by drowning in 1594, whom the executioner could hardly keep under with repeated thrusts of his pole, so high did she bound upwards from the surface, and "so boil up," as it were, out of the depths of the water. The levity of possessed persons in water might be accounted for by a phenomenon attendant on those preternatural conditions of the body which follow excitements of an analogous kind. The victims of the flogging and dancing manias in the middle ages, and subjects of the fanatical fervors of camp-meetings and revivals, alike experienced a windy intestinal distension, consequent on the departure of their mental frenzy. To control this disagreeable symptom, the candidates for both species of afflatus used to come to their meetings provided with napkins and rollers with which to bind their middles, and prevent the supervening inflation. Persons so puffed up would certainly float with all the buoyancy ascribed to the German witches, if cast into water; but they would still preserve their proper corporeal gravity if placed in a scale. Unless, then, we suppose Delrio to have been the dupe of some singular and unaccountable delusion on this point, the typanitic affections of the _convulsionnaires_ will not account for the anti-gravitating phenomena ascribed to medieval witchcraft. There are some reasons, however, for the belief that these appearances may not have been wholly imaginary; for if any reliance can be placed on the concurrent traditions of all religions, Pagan as well as Christian, supported by wide-spread popular belief, the high mental exaltation induced by religious abstraction, and also by other vehement affections of the mind, is actually attended with a diminished specific gravity. Of alleged ecclesiastical miracles of this kind it is better to say nothing. The Roman Catholic and the Hindoo devotees equally claim for their adepts in religious contemplation an exemption from (among other