| Author: | McBride, James, 1788-1859 |
| Subject: | QB, Earth (Planet) -- Miscellanea, Symmes, John Cleves, 1780-1829 |
| Format: | Electronic text |
| Date issued: | 2017 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Symmes's Theory of Concentric Spheres : Demonstrating that the Earth is hollow, habitable within, and widely open about the poles [electronic resource] / James McBride |