The conception of the hollow earth presented in this book offers the most reasonable theory of the origin of the flying saucers and far more logical than the belief in their interplanetary origin. by Dr. R. W. Bernard, B.A., M.A., Ph.D. For this reason, leading flying saucer experts, as Ray Palmer, editor of “Flying Saucers” magazine, and Gray Barker, a well-known writer on flying saucers, have accepted the theory of their subterranean origin as against the idea that they […] Read More