Bulletin of the American Museum of Natural History, Volume 82: Article 1, Parts 1 & 2. Part 1: The Dudley Expedition, by Barnum Brown. Part 2: Echinoidea by Ethel D. Currie. 1943. 29 pp. Paperback in Fine condition. Stiff wrappers with sharp corners. Pages are crisp, clean, and without flaw.