On the Origin of Species · ¶1270
Varieties: natural, 44. struggle between, 75. domestic, extinction of, 111. transitional, rarity of, 172. when crossed, fertile, 267. when crossed, sterile, 269. classification of, 423.Read in context ›
Charles Darwin · John Murray, London, 1859, first edition · Gutenberg #1228; original diagram from Darwin Online F373
Charles Darwin · John Murray, London, 1859, first edition · Gutenberg #1228; original diagram from Darwin Online F373
Passage preview. Read in context for the complete text, notes and references.