|| First edition. Offprint. Very good condition. Name stamp of Edmund B. Wilson on front cover.* Laid in is an envelope from The Macmillan Company dated 1908 addressed to Thomas Hunt Morgan. First edition. Offprint. Reprinted from The Popular Science Monthly. Vol. LXXI. June, August, September, October, November, December, 1907. Garrison and Morton 132. Mentioning this paper, but citing 1908 book. Some chipping and tears to edges.