DUMÉRIL (André Marie Constant). S NATURAL SCIENCES. Paris, Deterville, 1825 2 volumes in-8, fawn half calf, spine decorated, speckled edges (contemporary binding). Third edition illustrated with 33 plates, most of them folded. Hector Ferrey's ex-libris manuscript. Blunt corners, scattered freckles. We enclose of the same one: ELEMENTARY TREATY OF NATURAL HISTORY. Paris, Deterville, 1804. In-8, havana basane, smooth spine decorated (contemporary binding). Ex-libris Franciscus Arcenus. Bound a little tired, some light circles. Set of 3 volumes.