New York, Philosophical Library, 1953 FIRST EDITION. 8vo. Very good+ in blue cloth covered boards with gilt title to spine. Light bumping to spine ends. Light foxing and browning to end pages. Else is clean and bright. Very good orange, white, and black illustrated dust jacket with white and light blue title to front panel and orange title to spine panel. Minor edgewear and rubbing to dust jacket. 312 pages.