The Metal Monster
Otis Adelbert Kline
Spacehounds of IPC
Edward E. Smith & David A. Kyle
The Doom from Planet 4
Jack Williamson
The Jameson Satellite & The Planet of the Double Sun
Neil R. Jones
Professor Jameson (1)
The Jameson Satellite
The City of the Singing Flame
Clark Ashton Smith
Singing Flame (1)
Amazing Stories Quarterly 1931 Summer v04n03
Amazing Stories Quarterly
Wonder Stories 1931-06
Wonder Stories
Astounding Stories 1931-06 v06n03
Astounding Stories
Wonder Stories Quarterly 1931 Summer v02n04
Wonder Stories Quarterly
Tama, Princess of Mercury
Ray Cummings
Tama (2)
Astounding Stories 1931-05 v06n02
Amazing Stories 1931-05 v06n02
Amazing Stories
Wonder Stories 1931-05 v02n12
Worlds to Barter
E. V. Lucas & John Wyndham
The War of the Giants
Fletcher Pratt
Through the Purple Cloud
Telepathy
Hugo Gernsback
Editorial (Wonder Stories) (1)
The Cosmic Gun
Morrison Colladay
The Cosmic Gun (1)
Jan of the Jungle (The Call of the Savage)
Jan of the Jungle (1)