From Unknown Worlds
John W. Campbell, Jr.
Unknown 1940-02 v02n05
Unknown
Famous Fantastic Mysteries 1940-02 v01n05
Famous Fantastic Mysteries
Super Science Stories 1940-03 v01n01
Super Science Stories
The Worlds of Tomorrow: Pluto
Edmond Hamilton
Captain Future's Worlds of Tomorrow (2)
Science Comics 002 1940-03
Science Comics
Horror Stories 1940-03
Horror Stories
Fantastic Adventures 1940-03 v02n03 (missing)
Fantastic Adventures
Planet Comics 003 1940-03
Planet Comics
Science-Fiction Adventures in Dimension
Groff Conklin
The Reign of Wizardry
Jack Williamson
Train for Flushing
Malcolm Jameson
Ring Around the Sun
Isaac Asimov
Robots, Empire, Foundation (5)
The Emancipated
L. Sprague de Camp
Johnny Black (3)
Black World
Raymond A. Palmer
After Doomsday
John Russell Fearn
Perfect Murder
H. L. Gold
Famous Fantastic Mysteries 1940-03 v01n06
Amazing Stories 1940-03 v14n03
Amazing Stories
Astounding Science-Fiction 1940-03 v25n01
Astounding Stories