Bridge - novelette by James Blish Victory Unintentional - short story by Isaac Asimov Desertion - short story by Clifford D. Simak The Mad Moon - novelette by Stanley G. Weinbaum Heavyplanet - short story by Milton A. Rothman (variant of Heavy Planet) The Lotus-Engine - short story by Raymond Z. Gallun Call Me Joe - novelette by Poul Anderson Habit - short story by Lester del Rey A Meeting with Medusa - novelette by Arthur C. Clarke