"... AND SOME WERE HUMAN" -- A DOZEN. Philadelphia: Prime Press, 1948. Octavo, cloth. First edition. First issue with the hand lettered title page dated 1948. A presentation copy with signed inscription on the front free endpaper by del Rey to fellow editor David G. Hartwell: "To Dave Hartwell / with best wishes / Lester del Rey." The author's first SF book. Collects twelve stories including "Nerves" and "Helen O'Loy." See Anatomy of Wonder (2004) II-306. Bleiler, The Guide to Supernatural Fiction 512. Cloth spotted and stained, a good copy in very good dust jacket with wear, shallow fraying and chipping, and rubbing to edges, mostly spine ends and corner tips. (#157683).