{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Symmes theory of concentric spheres: demonstrating that the earth is hollow, habitable within, and widely open about the poles","author_name":"John Cleves Symmes","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3HK/bigB003HKRGO8.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003HKRGO8.html\">The Symmes theory of concentric spheres: demonstrating that the earth is hollow, habitable within, and widely open about the poles</a>","width":400,"height":300}