Wonder Stories 1931-04 v02n11
Wonder Stories
Astounding Stories 1931-04 v06n01
Astounding Stories
Amazing Stories 1931-04 v06n01
Amazing Stories
The Man Who Evolved
Edmond Hamilton
Monsters of Mars
An Adventure in Futurity
Clark Ashton Smith
Too Many Boards
Harl Vincent
Islands of Space
John W. Campbell, Jr.
Arcot, Morey and Wade (2)
Call of the Savage
Otis Adelbert Kline
Jan of the Jungle (1)
The Exile of Time
Ray Cummings
Time (1)
Amazing Stories Quarterly 1931 Spring v04n02
Amazing Stories Quarterly
Wonder Stories 1931-03
Astounding Stories 1931-03 v05n03
Amazing Stories 1931-03 v05n12
Beyond the Vanishing Point
The Thing That Walked in the Rain
Terrors Unseen
Astounding Stories 1931-02 v05n02
Wonder Stories 1931-01 v02n08
Amazing Stories Quarterly 1931 Winter v04n01