Language for Time Travelers
L. Sprague de Camp
The Dangerous Dimension
L. Ron Hubbard
The Men and the Mirror
Ross Rocklynne
Colbie & Deverel (1)
Astounding Science-Fiction 1938-07 v21n05
Astounding Stories
Amazing Stories 1938-08 v12n04
Amazing Stories
Who Goes There?
John W. Campbell, Jr.
Via Death
Otto Binder
Via (3)
Marvel Science Stories 1938-08 v01n01
Marvel Science Stories
Astounding Science-Fiction 1938-08 v21n06
Thrilling Wonder Stories 1938-08
Thrilling Wonder Stories
Impulse
Eric Frank Russell
Robots Return
Robert Moore Williams
Adventures in Science Fiction 04 (1)
Astounding Science-Fiction 1938-09 v22n01
Revolution of 1950
Stanley G. Weinbaum
Satellite Five
Arthur K. Barnes
Gerry Carlyle (3)
The Command
Johnny Black (1)
The Brain Pirates
Penton and Blake (1)
Astounding Science-Fiction 1938-10 v22n02
Amazing Stories 1938-10 v12n05
Thrilling Wonder Stories 1938-10