Astounding Stories 1931-08 v07n02
Astounding Stories
Wonder Stories 1931-08
Wonder Stories
The Sargasso of Space
Edmond Hamilton
Awlo of Ulm
S. P. Meek
The Copper-Clad World
Harl Vincent
Devil Crystals of Arret
Hal K. Wells
The God in the Box
Sewell Peaslee Wright
John Hanson (1)
Astounding Stories 1931-09 v07n03
Wonder Stories 1931-09
Wonder Stories Quarterly 1931 Fall v03n01
Wonder Stories Quarterly
The Derelict of Space
Ray Cummings & William Thurmond
The Red Hell of Jupiter
Paul Ernst
In the Orbit of Saturn
R. F. Starzl
The Heads of Apex
Francis Flagg & David Baldwin
The Solar Magnet
Doctor Bird and Operative Carnes (1)
Seeds of Life
John Taine
Galaxy Science Fiction Novel (13)
Tarzan Triumphant
Edgar Rice Burroughs
Tarzan (15)
Astounding Stories 1931-10 v08n01
Amazing Stories Quarterly 1931 Fall v04n04
Amazing Stories Quarterly
Wonder Stories 1931-10