TY - BOOK ID - 133983656 TI - Symmes's Theory of Concentric Spheres Demonstrating that the Earth is hollow, habitable within, and widely open about the poles AU - Symmes, John Cleves AU - McBride, James PY - 2017 PB - Project Gutenberg DB - UniCat KW - Symmes KW - John Cleves KW - 1780-1829 UR - https://www.unicat.be/uniCat?func=search&query=sysid:133983656 AB - ER -