| 14 |
The Time Cheaters
|
Eando Binder
|
Novelette
|
| 32 |
Renegade from Saturn
|
Raymond Z. Gallun
|
Short Story
|
| 33 |
Meet the Author: Raymond Z. Gallun (Thrilling Wonder Stories, March 1940)
|
uncredited
|
Essay
|
| 42 |
Scientifacts: Incredible But True: A Special Feature of Interesting Oddities (Thrilling Wonder Stories, March 1940)
|
Mort Weisinger
|
Essay
|
| 44 |
Headliners in the Next Issue (Thrilling Wonder Stories, March 1940)
|
uncredited
|
Essay
|
| 45 |
Via Sun
|
Gordon A. Giles
|
Short Story
|
| 54 |
Science Quiz (Thrilling Wonder Stories, March 1940)
|
uncredited
|
Essay
|
| 56 |
The Planet of Change
|
Manly Wade Wellman
|
Novelette
|
| 72 |
If — Wars Were Fought With Advanced Science
|
Jack Binder
|
Essay
|
| 74 |
Perfect Murder
|
H. L. Gold
|
Short Story
|
| 78 |
The Thought Materializer
|
Leo Sonderegger
|
Short Story
|
| 79 |
The Prize Winning Author: Leo Sonderegger
|
uncredited
|
Essay
|
| 85 |
Worlds Within Worlds
|
Frederic Arnold Kummer, Jr.
|
Novelette
|
| 116 |
Looking Forward (Thrilling Wonder Stories, March 1940)
|
The Editor
|
Essay
|
| 119 |
Science Questions and Answers (Thrilling Wonder Stories, March 1940)
|
The Editor
|
Essay
|
| 120 |
Letter: Contest for Artists (Thrilling Wonder Stories, March 1940)
|
Tom Wright
|
Essay
|
| 120 |
Letter: The "Eternals" Immortal (Thrilling Wonder Stories, March 1940)
|
Sam Muskowitz
|
Essay
|
| 120 |
The Reader Speaks (Thrilling Wonder Stories, March 1940)
|
various
|
Essay
|
| 124 |
The Story Behind the Story
|
uncredited
|
Essay
|
| 124 |
The Story Behind the Story: Experiment with Time
|
Eando Binder
|
Essay
|
| 125 |
The Story Behind the Story: Mysteries of the Sub-Atomic
|
Frederic Arnold Kummer, Jr.
|
Essay
|
| 127 |
The Story Behind the Story: Journey's End
|
Gordon A. Giles
|
Essay
|
| 129 |
The Swap Column (Thrilling Wonder Stories, March 1940)
|
uncredited
|
Essay
|