The Philosophical Research Society, Inc., 1984. First Edition Thus. Pamphlet. 40 pages. Reprints text from a lecture Hall delivered in 1926, with a new preface for this edition. First published in 1929. Very good in blue stapled wrappers (paperback). Spine a bit faded. Light bump to one corner.
Samuel Weiser, Inc., 1998. First Edition. Trade Paperback. 323 pages. First edition (first printing). Light edge wear and previous owner's small sticker on the half-title else a fine copy in wrappers (paperback).