1883. Being a condensed account of the recently discovered solution of the use and meaning of the Great Pyramid, whereby the mystery which has shrouded this wonderful structure for four thousand years has been dissipated, and its claim to be accepted as a revelation of the highest ethical and scientific truths exhaustively demonstrated. To which is added a review of Professor Piazzi Smyth's second edition of "Our Inheritance in the Great Pyramid." Illustrated.