DARWIN, Charles (1809-1892). On the Origin of Species. London: John Murray, 1869. 8vo (184 x 119 mm). Half-title. (Bound without ads.) Modern quarter tan leather, marbled boards, marbled edges. Provenance: Dudley C. Marjoribanks, 3rd Baron Tweedmouth (1874-1935), British army officer (bookplate removed from old binding laid in). Fifth edition ("tenth thousand"). "The fifth edition of 1869 was of 2,000 copies and was again much revised. It is in this one that Darwin used the expression 'survival of the fittest'... for the first time" (Freeman 387).