Notes: A revised and expanded version of Gardner's 1913 treatise expounding a hollow-earth theory. Gardner spends much time addressing the problem of the hollow earth given that explorers had reached the poles. He also devotes a chapter to an imaginative trip inside the earth (putting this book in the science fiction category), and to responding to critics of the first edition.
456 pages. With 12 plates, three printed in colors.
Edition + Condition: Second edition (three lines of corrected text pasted on to p. 335). Very good in the publisher's red cloth stamped in gilt. No dust jacket. This was previously in the Harvard office library of the great evolutionary theorist Stephen Jay Gould, with a bookplate on the front paste-down denoting the provenance.
Publication: Aurora, IL: (the author), 1920.
Item No: #308267