The Legion of Time
Jack Williamson
Assignment in Eternity
Robert A. Heinlein
The Book of Ptath
A. E. Van Vogt
Of Worlds Beyond
Lloyd Arthur Eshbach
The Forbidden Garden
John Taine
Darker Than You Think
The Moon Is Hell!
John W. Campbell, Jr.
Man of Many Minds
E. Everett Evans
Operation: Outer Space
Murray Leinster
Second Genesis
Eric Frank Russell
Triplanetary
Edward E. Smith
Lensman (1)
First Lensman
Lensman (2)
The Incredible Planet
John W. Campbell, Jr. & Christopher Stasheff
Mightiest Machine (2)