Barcelona: Imprenta de la Renaixensa, 1876. First Spanish edition. In contemporary half leather. Marbled endpapers. Spine with small damage to the head, wormholes at joints. Corners slightly bumped. Pages yellowed due to aging. Last pages with wormholes. Overall in very good condition.. First Spanish edition. In contemporary half leather. Marbled endpapers. XI, (2), 14-322, (2) p. First Spanish edition of Charles Darwin's 1871 groundbreaking book on human evolution and the sexual selection, "The Descent of Man".