DARWIN, Charles. A collection of 18 volumes of 19th century editions of his works including: The Descent of Man, and Selection in Relation to Sex. London, 1871. 2 volumes, 8o. Original green cloth. FIRST EDITION, second issue. Freeman 938. -- The Origin of Species by Means of Natural Selection. London, 1875. 8o. Original green cloth. Sixth Edition. Freeman 398. -- The Formation of Vegetable Mould, Through the Action of Worms, with Observations on their Habits. London, 1881. 8o. Original green cloth. FIRST EDITION, second issue. Freeman 1358. -- The Origin of Species by Means of Natural Selection. London, 1884. 8o. Original green cloth. Sixth Edition. Freeman 412. -- and 13 others, 8o, most in original binding, condition generally good. A complete list is available upon request. (18)