Note AB — Chapter IV · VARIATION AND NATURAL SELECTION.
Reading edition
Ann. and Mag. Nat. Hist., September, 1889, p. 209, quoted by Poulton, "Colours of Animals," p. 55.
Reading edition
Ann. and Mag. Nat. Hist., September, 1889, p. 209, quoted by Poulton, "Colours of Animals," p. 55.