Dictionaries - essay by Isaac Asimov
Too Soon to Die - novelette by Tom Godwin
A Museum Piece - short story by Roger Zelazny
Why Johnny Can't Speed - short story by Alan Dean Foster
Man in a Quandary - short story by Joseph Wesley [as by L. J. Stecher, Jr.]
The Cabbage Patch - short story by Theodore R. Cogswell
A Touch of Grapefruit - short story by Richard Matheson
Answer - short story by Fredric Brown
A Gun for Dinosaur - novelette by L. Sprague de Camp
A Pail of Air - short story by Fritz Leiber
The Odor of Thought - short story by Robert Sheckley
The Last Monster - short story by Poul Anderson (variant of Terminal Quest)
History Lesson - short story by Arthur C. Clarke
The Troublemaker - short story by Christopher Anvil
The Game of Rat and Dragon - short story by Paul Myron Anthony Linebarger [as by Cordwainer Smith]
Let's Be Frank - short story by Brian W. Aldiss
The Easy Way Out - short story by G. Harry Stine [as by Lee Correy]
All Cats Are Gray - short story by Andre Norton
The Man from Earth - short story by Gordon R. Dickson
Dream Damsel - short story by Evan Hunter
The Underdweller - short story by William F. Nolan (variant of Small World)
Top Secret - short story by Eric Frank Russell
One Love Have I - short story by Robert F. Young
The Snowball Effect - short story by Katherine MacLean
The Santa Claus Problem - short story by J. W. Schutz
The Ship Who Sang - novelette by Anne McCaffrey
No Harm Done - short story by Jack Sharkey
There Will Come Soft Rains - short story by Ray Bradbury
In the Jaws of Danger - short story by Piers Anthony
In the Abyss - (1896) - short story by H. G. Wells
Custer's Last Jump - novelette by Steven Utley and Howard Waldrop
Game Preserve - short story by Rog Phillips
Life Hutch - short story by Harlan Ellison
The Silk and the Song - novelette by Charles L. Fontenay
Down to the Worlds of Men - novelette by Alexei Panshin
Robbie - short story by Isaac Asimov (variant of Strange Playfellow 1940)
The Man with English - short story by H. L. Gold [as by Horace L. Gold]
Transstar - novelette by Raymond E. Banks
Open Warfare - novelette by James E. Gunn
The Long Way Home - short story by Fred Saberhagen
Skirmish on a Summer Morning - novella by Bob Shaw
Gantlet - short story by Richard E. Peck
Saucer of Loneliness - short story by Theodore Sturgeon (variant of A Saucer of Loneliness)
The Mother of Necessity - short story by Chad Oliver
The Great Secret - short story by George H. Smith
The Draw - short story by Jerome Bixby
For the Sake of Grace - novelette by Suzette Haden Elgin
A Death in the House - novelette by Clifford D. Simak
Creature of the Snows - short story by William Sambrot
A Criminal Act - short story by Harry Harrison
The Cage - short story by A. Bertram Chandler