An Exposition of the Laws of Disguise Through Color and Pattern. New York: Macmillan, 1909. First Edition. Cloth. A summary of Abbott H. Thayer’s discoveries. With an introductory essay by Abbott H. Thayer. Illustrated by Abbott H. Thayer, Gerald H. Thayer, Richard S. Merryman and Others and with Photographs. xix, 260 pp; 16 plates (Frontispiece plate 1); 140 figs. 4to. Illustrated, including plates in color. Original cloth. All edges gilt; some shelf wear. “Copperhead Snake on Dead Leaves” (opposite p. 172/plate XI), painted by Rockwell Kent and Abbott Thayer, is ROCKWELL KENT’S first appearance in print, with a presentation slip from “The Author” tipped in.