Contents:
Blowups Happen by Robert A. Heinlein
Hindsight by Jack Williamson
Vault of the Beast by A. E. van Vogt
The Exalted by L. Sprague de Camp
Nightfall by Isaac Asimov
When the Bough Breaks by Henry Kuttner and C. L. Moore
Clash by Night by Henry Kuttner and C. L. Moore
Invariant by John R. Pierce
First Contact by Murray Leinster
Meihem in ce Klasrum essay by Dolton Edwards
Hobbyist by Eric Frank Russell
E for Effort by T. L. Sherred
Child's Play by William Tenn
Thunder and Roses by Theodore Sturgeon
Late Night Final by Eric Frank Russell
Cold War by Kris Neville
Eternity Lost by Clifford D. Simak
The Witches of Karres by James H. Schmitz
Over the Top by Lester del Rey
Meteor by William T. Powers
Last Enemy by H. Beam Piper
Historical Note by Murray Leinster
Protected Species by H. B. Fyfe
Contents:
Blowups Happen by Robert A. Heinlein
Hindsight by Jack Williamson
Vault of the Beast by A. E. van Vogt
The Exalted by L. Sprague de Camp
Nightfall by Isaac Asimov
When the Bough Breaks by Henry Kuttner and C. L. Moore
Clash by Night by Henry Kuttner and C. L. Moore
Invariant by John R. Pierce
First Contact by Murray Leinster
Meihem in ce Klasrum essay by Dolton Edwards
Hobbyist by Eric Frank Russell
E for Effort by T. L. Sherred
Child's Play by William Tenn
Thunder and Roses by Theodore Sturgeon
Late Night Final by Eric Frank Russell
Cold War by Kris Neville
Eternity Lost by Clifford D. Simak
The Witches of Karres by James H. Schmitz
Over the Top by Lester del Rey
Meteor by William T. Powers
Last Enemy by H. Beam Piper
Historical Note by Murray Leinster
Protected Species by H. B. Fyfe