Surface Tension - novelette by James Blish The Discovery of Morneal Matheway - short fiction by William Tenn (variant of The Discovery of Morniel Mathaway 1955) A Pail of Air - short story by Fritz Leiber Chain of Command - short story by Stephen Arr Hostess - novelette by Isaac Asimov The Haunted Corpse - short story by Frederik Pohl Early Model - short story by Robert Sheckley Volpla - novelette by Wyman Guin Knock - short story by Fredric Brown Pictures Don't Lie - short story by Katherine MacLean