Upham, vol. i. p. 440, says Powell "determined to see what it all meant, and to put a stop to it, if he could, went to the house, and soon became satisfied that a roguish grandchild was the cause of all the trouble.... It is not unlikely, that, in foreign ports, he had witnessed exhibitions of necromancy and mesmerism, which, in various forms and under different names, have always been practiced. Possibly he may have _boasted to be a medium himself_, a scholar and adept in the mystic art, able to read and divine 'the workings of spirits.' At any rate, when it became known that, at a glance, he attributed to the boy the cause of the mischief, and that it ceased on his taking him away from the house, the opinion became settled that he was a wizard.... His astronomy, astrology, and _Spiritualism_ brought him in peril of his life." It is no unusual thing for even wise men to write much more wisely than they know. If Powell correctly "_at a glance_ ... found the boy to be the cause of the mischief," it becomes probably a _fact_, and not simply a _boast_, that he was "a medium himself," that he was "a wizard," or knowing one, and that his "Spiritualism," more _accurately_ his mediumistic capabilities, "brought him in peril of his life." One authority says the play "was resumed with more vigor than ever" when he came into the house. For some reason he was very soon arraigned and tried for witchcraft, but not convicted. We have little doubt that his optics saw the boy performing tricks, and therefore can believe that he accused John in good faith; just as the clairvoyant soon to be noticed accused the medium Read. Powell probably saw the boy perpetrating the mischief. But with what eyes? The outer or the inner--his material or his spiritual ones? And which boy did he see? The external or the internal one--the boy material or the boy spiritual? In evidence both that our explanations of Powell's doings will be neither sheer novelty nor mere fancy, and for the purpose of disseminating knowledge of highly important facts, the following extracts are taken from an instructive and interesting pamphlet upon "Mediums and Mediumship," by Thomas R. Hazard: Wm. White & Co., Boston, 1873.