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