Contents: The Mystery of John Keely by Egerton Sykes, editor of “Atlantis” The Organ of the Hoerbiger Institute Scale of Vibrations Keely’s Writings Keely on Gravity The Various Keely Machines The Inventor’s Physical Philosophy    By Prof. Daniel Brinton The Successors of Keely H.P. Blavatsky on J.W. Keely from “The Secret Doctorine” Inspired by the Dark Forces, Part XII CQC by the Editor