Symmes's Theory of Concentric Spheres Demonstrating that the Earth is hollow, habitable within, and widely open about the poles

Symmes's Theory of Concentric Spheres Demonstrating that the Earth is hollow, habitable within, and widely open about the poles

by John Cleves, James

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Earth (Planet) -- Miscellanea; Symmes, John Cleves, 1780-1829