NEANDERTHAL PLANET. New York: Avon, . Octavo, boards. First U.S. hardcover edition. Later printing with code "34 L" on page 187. Signed inscription by Aldiss to influential F&SF editor and publisher David G. Hartwell on the front free endpaper. Published earlier in Britain with slightly altered contents as INTANGIBLES, INC. (1969). Issued by the Science Fiction Book Club. A fine copy in fine dust jacket. (#112135).