Across Time
Donald A. Wollheim
Aliens from Space
Robert Silverberg
Day of the Giants
Lester Del Rey
Destination: Saturn
Donald A. Wollheim & Lin Carter
Edge of Time
Glory Planet
A. Bertram Chandler
Hidden World
Stanton A. Coblentz
The Martian Missile
Starhaven
Wasp
Eric Frank Russell
Destiny's Orbit
Ajax Calkins (1)
Out of This World
Murray Leinster
Bud Gregory (1)
Prince of Peril
Otis Adelbert Kline
Grandon (2)
The Rim of Space
John Grimes Rimworld (1)
Star Ways
Poul Anderson
Psychotechnic League (1)