Symmes's Theory of Concentric Spheres Demonstrating that the Earth is hollow, habitable within, and widely open about the poles
by McBride, James · en · published 2017-03-09
A free public domain ebook from Project Gutenberg. Earth (Planet) -- Miscellanea; Symmes, John Cleves, 1780-1829
About this book
Symmes's Theory of Concentric Spheres Demonstrating that the Earth is hollow, habitable within, and widely open about the poles is one of 76,000+ free public-domain ebooks indexed in the SENTINEL Books catalog, sourced from Project Gutenberg. Published 2017-03-09, written in en, classified under QB in the Library of Congress system.
Subjects: Earth (Planet) -- Miscellanea; Symmes, John Cleves, 1780-1829
Bookshelves: Category: Science - Earth/Agricultural/Farming