Good-Bye, Robinson Crusoe - novelette by John Varley Machismo on Byronia - short story by Martin Gardner Low Grade Ore - novelette by Kevin O'Donnell, Jr. Backspace - short story by F. M. Busby Perchance to Dream - short story by Sally A. Sellers On the Martian Problem - short story by Randall Garrett The Missing Item - short story by Isaac Asimov Home Team Advantage - short story by Jack C. Haldeman, II Air Raid - short story by John Varley [as by Herb Boehm] A Simple Outside Job - short story by Robert Lee Hawkins Time and Hagakure - short story by Steven Utley Coming of Age in Henson's Tube - short story by William John Watkins [as by William Jon Watkins] To Sin Against Systems - novelette by Garry R. Osgood