Lost Treasure of Mars
Edmond Hamilton
Captain Future's Worlds of Tomorrow (5)
Astonishing Stories 1940-08 v01n04
Astonishing Stories
Fantastic Adventures 1940-08 v02n07
Fantastic Adventures
Thrilling Wonder Stories 1940-08 v17n02
Thrilling Wonder Stories
Famous Fantastic Mysteries 1940-08 v02n03
Famous Fantastic Mysteries
Amazing Stories 1940-08 v14n08
Amazing Stories
Astounding Science-Fiction 1940-08 v25n06
Astounding Stories
Argosy Weekly 1940-08-03 The Harp and the Blade (Part 7 of 7) ...
Argosy
Argosy Weekly 1940-08-17 Yaqui Gold (Part 4 of 5)
Argosy Weekly 1940-08-24 Yaqui Gold (Part 5 of 5)
Argosy Weekly 1940-08-31 Minions of Mercury (Part 1 of 5)
Planet Comics 008 1940-08
Planet Comics
Rex Dexter of Mars 1 1940-09
Rex Dexter of Mars
Astounding Science-Fiction 1940-09 v26n01
Chicon 40
Science Fiction Convention
I, Robot
Isaac Asimov
The Positronic Robot Stories (1)
Science Comics 008 1940-09 (-cf)
Science Comics
The Early Asimov or, Eleven Years of Trying Volume 2
Quietus
Ross Rocklynne
The Hardwood Pile
L. Sprague de Camp