On the Origin of Species · ¶1204
Species: polymorphic, 46. common, variable, 53. in large genera variable, 54. groups of, suddenly appearing, 302, 306. beneath Silurian formations, 306. successively appearing, 312. changing simultaneously throughout the world, 322.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
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