Out of the Silence
Erle Cox
The Crack of Doom
Robert Cromie
The Shadow Girl
Ray Cummings
Time (1)
Beyond the Vanishing Point
Tarrano the Conqueror
Brigands of the Moon
Gregg Haljan (1)
The Finding of Haldgren
Charles Willard Diffin
Walter Harkness (1)
Two Thousand Miles Below
The Red Hell of Jupiter
Paul Ernst
Saturn's Ringmaster
Raymond Z. Gallun
Ralph 124C 41+: A Romance of the Year 2660
Hugo Gernsback
The Passing of Ku Sui
Harry Bates & Bruce Sterling
Hawk Carse (1)
The Star Kings
Edmond Hamilton
Star Kings (1)
Gladiator
Philip Wylie
The Dangerous Dimension
L. Ron Hubbard
The Port of Peril
Otis Adelbert Kline
Grandon (3)
The Prince of Peril
Grandon (2)
The Outlaws of Mars
Swordsman of Mars (2)
Tarzan and the Lion Man
Edgar Rice Burroughs
Tarzan (17)
The Inheritors
Joseph Conrad & Ford Madox Ford