Publisher: Permabooks, No. M4184. 1960, 239pgs. Mass Market Paperback. Squared with a solid binding and a clean, unmarked inteiror. Some scuffing to the cover edges and spine ends, no tears. "Fifteen imaginative stories that probe beyond the range of the swiftest-travelling rocket." Stories from: Stephen Barr, Jim Harmon, Margaret St. Clair, Michael Shaara, Thomas N. Scortia, Fritz Leiber and others....
