Concealing-coloration in the animal kingdom; an exposition of the laws of disguise through color and pattern: being a summary of Abbott H. Thayer's discoveries (1909)
Thayer, Gerald Handerson, 1883-1939, Thayer, Abbott Handerson, 1849-1921, Ketchum, Howard, b. 1902, former owner. DSI · New York, The Macmillan Co. · leaf 59
Animals · Camouflage (Biology)
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
