Edited by Reginald Bretnor.
- The Screwfly Solution by James Tiptree, Jr. (as by Raccoona Sheldon)
- The Sword by Frank Quattrocchi
- Invasions of Earth (essay) by L. J. Stecher, Jr.
- UFOs and Stranger Intruders (essay) by Joseph F. Goodavage
- Temple Guardian by Kevin O'Donnell, Jr.
- Mirror, Mirror by Alan E. Nourse (aka The Mirror)
- Man: A Transitional Animal (essay) by Carl Sagan
- Balaam by Anthony Boucher
- Encased in the Amber of Death (poem) by Robert Frazier
- Cold Victory by Poul Anderson
- Women Under Fire (essay) by Vicki Ann Heydron
- This Faithful Soldier's Life by James A. Stevens (as by James Stevens-Arce)
- The Ultimate Weapon (essay) by T. R. Fehrenbach
- Ender's Game by Orson Scott Card
- Fool's Mate by Robert Sheckley
- Wings Out of Shadow by Fred Saberhagen
Reginald Bretnor (1911–1992) was born in Vladivostok, Siberia. The family moved to San Diego, California, in 1920. He is best known for his invention of the "Feghoot," extremely short stories which end with a pun. Under the pseudonym Grendel Briarton, he penned Through Time and Space with Ferdinand Feghoot, a series of shaggy-dog-story SF puns which ran for years in The Magazine of Fantasy & Science Fiction, Venture, and Asimov's Science Fiction. A Feghoot collection was published by Paradox Press (1962) and Mirage Press published two other editions: The Compleat Feghoot and The (Even More) Compleat Feghoot. His final novel was Schimmelhorn's Gold, a collection of Bretnor's stories about an oversexed octogenarian idiot/genius.
Reginald Bretnor. Wikipedia.