The purity plot
Stephen Goldin & E. E. Smith
The Alchemist
Ken Goddard
A Spark in the Air
Dena Blake
Crisscross: A Repairman Jack Novel
F. Paul Wilson
Anvil of Stars
Greg Bear
Space Cadet
Robert A. Heinlein
The Dark Beyond the Stars : A Novel
Frank M. Robinson
The Urth of the New Sun : The sequel to 'The Book of the New ...
Gene Wolfe
The Boat of a Million Years
Poul Anderson