At the End of the Orbit - short story by Arthur C. Clarke (variant of Hate)
On the Feasibility of Coal-Driven Power Stations - short story by O. R. Frisch
A Feast of Demons - novelette by William Morrison
The Heart on the Other Side - short story by George Gamow
Lenny - short story by Isaac Asimov
The Singers - short story by W. Grey Walter
The Invasion - novelette by Willy Ley [as by Robert Willey]
To Explain Mrs. Thompson - short story by R. S. Richardson [as by Philip Latham]
Adrift on the Policy Level - short story by Chan Davis [as by Chandler Davis]
The Black Cloud (Excerpt) - short fiction by Fred Hoyle
Chain Reaction - short story by Lyle G. Boyd and William C. Boyd [as by Boyd Ellanby]
The Miracle of the Broom Closet - short story by Norbert Wiener [as by W. Norbert]
Heavy Planet - short story by Milton A. Rothman [as by Lee Gregor]
The Test Stand - short story by G. Harry Stine [as by Lee Correy]
Amateur in Chancery - short story by George O. Smith
The Mark Gable Foundation - short story by Leo Szilard