官方藏书 / Science_-_Earth_Agricultural_Farming / Symmes's Theory of Concentric Spheres / Demonstrating that the Earth is hollow, habitable within, and widely open about the poles
Symmes's Theory of Concentric Spheres / Demonstrating that the Earth is hollow, habitable within, and widely open about the poles
James McBride · Science_-_Earth_Agricultural_Farming · 20 章