Title: Before the Golden Age (Book 4 of 4)
Description: Introduction - essay by Isaac Asimov
Part One: 1936 - essay by Isaac Asimov
He Who Shrank - novella by Henry Hasse
The Human Pets of Mars - novella by Leslie F. Stone [as by Leslie Frances Stone]
The Brain Stealers of Mars - short story by John W. Campbell, Jr.
Devolution - short story by Edmond Hamilton
Big Game - short story by Isaac Asimov
Part Two: 1937 - essay by Isaac Asimov
Other Eyes Watching - essay by John W. Campbell, Jr.
Minus Planet - novelette by John D. Clark, Ph.D. [as by John D. Clark]
Past, Present and Future - novelette by Nat Schachner
Part Three: 1938 - essay by Isaac Asimov
The Men and the Mirror - novelette by Ross Rocklynne