Symmes's Theory of Concentric Spheres

Full Title

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

Language

en

Duration

~3 hours (219K characters)

Publisher of text edition

Project Gutenberg

Credits

Produced by Chris Curnow, Daniel Lowe and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive)

Subjects