The Variation of Animals and Plants under DomesticationNote 20 — Chapter XXIV · LAWS OF VARIATION—USE AND DISUSE, ETC.Reading editionQuoted by Lecoq, in ‘Géograph. Bot.,’ tom. i. 1854, p. 182.◇Copy noteReturn to CHAPTER XXIV. LAWS OF VARIATION—USE AND DISUSE, ETC.