On the Origin of Species · ¶897
Edwards, Milne: on physiological divisions of labour, 115. on gradations of structure, 194. on embryological characters, 418.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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