Science Fiction of the 50's Author:Martin Harry Greenberg (Editor), Joseph Olander (Editor) Preface by Frederik Pohl — Spectator Sport by John D. MacDonald — Feedback by Katherine MacLean — DP by Jack Vance — The Liberation of Earth by William Tenn — A Work of Art by James Blish — The County of the Kind by Damon Knight — The Education of Tigress McCardle by C.M. Kornbluth — The Cage by A. Bertram Chandler — The Last of the Deliverers by Poul An... more »derson