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