Note 64 — Chapter IV · REMINISCENCES OF MY FATHER'S EVERYDAY LIFE. (continued 2)
Reading edition
He departed from his rule in his "Note on the Habits of the Pampas Woodpecker, Colaptes campestris," Proc. Zool. Soc., 1870, p. 705: also in a letter published in the Athenæum (1863, p. 554), in which case he afterwards regretted that he had not remained silent. His replies to criticisms, in the latter editions of the Origin, can hardly be classed as infractions of his rule.