New York: The Author, 1900.
Hardcover. Second edition. Small quarto. 277pp. Illustrated. Green cloth decorated in gilt. Corners bumped and rubbed about very good. "Le Plongeon discovered numerous ruins and ancient relics of the Mayans. A controversial researcher, his aim was to present to the world the true esoteric, occult, and historical significance of the ancient Mayans. He shows the connection between the Mayan temples and pyramids and the Sphinx and the Great Pyramid in Egypt."