Darwin, Charles. THE ORIGIN OF SPECIES by Means of Natural Selection, or the Preservation of Favored Races in the Struggle for Life and THE DESCENT OF MAN and Selection in Relation to Sex. Thick post 8vo, First Edition in this form; pp. xvi, 386, , 389-924, -1000(indexes); 1 diagram in "Origin" & 78 figures in "Descent", Supplemental Note on Sexual Selection in Relation to Monkeys (Reprinted from Nature, November 2, 1876), glossary, index to each work; original cloth; a very good copy in worn dustwrapper. New York; The Modern Library; N.D. .