The Cosmic Gun
Morrison Colladay
The Cosmic Gun (1)
Telepathy
Hugo Gernsback
Editorial (Wonder Stories) (1)
Worlds to Barter
E. V. Lucas & John Wyndham
The War of the Giants
Fletcher Pratt
Through the Purple Cloud
Jack Williamson
Wonder Stories 1931-05 v02n12
Wonder Stories
Amazing Stories 1931-05 v06n02
Amazing Stories
Astounding Stories 1931-05 v06n02
Astounding Stories
Argosy Weekly 1931-05-30 Chinese for Racket (Part 1 of 2) / ...
Argosy Weekly
Tama, Princess of Mercury
Ray Cummings
Tama (2)
The Venus of Azombeii
Clark Ashton Smith
Wonder Stories Quarterly 1931 Summer v02n04
Wonder Stories Quarterly
Astounding Stories 1931-06 v06n03
Wonder Stories 1931-06
Argosy Weekly 1931-06-13 Under the Polar Ice (Part 1 of 3)
Amazing Stories Quarterly 1931 Summer v04n03
Amazing Stories Quarterly
Weird Tales 1931-07 v17n04 (-bc, -ibc)
Weird Tales
The Jameson Satellite & The Planet of the Double Sun
Neil R. Jones
Professor Jameson (1)
The Jameson Satellite
The Metal Monster
Otis Adelbert Kline