Thuvia, Maid of Mars
Edgar Rice Burroughs
Barsoom (4)
The Chessmen of Mars
Barsoom (5)
The Land That Time Forgot
Caspak (1)
The People That Time Forgot
Caspak (2)
Out of Time's Abyss
Caspak (3)
At the Earth's Core
Pellucidar (1)
Pellucidar
Pellucidar (2)
Tarzan of the Apes
Tarzan (1)
The Return of Tarzan
Tarzan (2)
The Beasts of Tarzan
Tarzan (3)
The Son of Tarzan
Tarzan (4)
Tarzan and the Jewels of Opar
Tarzan (5)
Jungle Tales of Tarzan
Tarzan (6)
Tarzan and the Valley of Luna
Tarzan (7)
Tarzan the Terrible
Tarzan (8)
Weak on Square Roots
Russell Burton
Solander's Radio Tomb
Ellis Parker Butler
Erewhon
Samuel Butler
Erewhon (1)
Uncertainty
John W. Campbell, Jr.
The Black Star Passes
Arcot, Morey and Wade (1)