Title: The Certainty of the World Of Spirits. Fully evinced by unquestionable Histories of Apparitions And Witchcrafts, Operations, Voices, &c. Proving the Immortality of Souls, the Malice and Miseries of the Devils and the Damn- ed, and the Blessedness of the Justified. Written for the Conviction of Sadduces and Infidels