Contents (view Concise Listing)

• 14 • The Time Cheaters • (1940) • novelette by Otto Binder [as by Eando Binder]
• 14 •  The Time Cheaters • (1940) • interior artwork by Frank R. Paul [as by Paul]
• 32 • Renegade from Saturn • (1940) • short story by Raymond Z. Gallun
• 32 •  Renegade from Saturn • (1940) • interior artwork by uncredited
• 33 • Meet the Author: Raymond Z. Gallun (Thrilling Wonder Stories, March 1940) • (1940) • essay by uncredited
• 42 • Scientifacts (Thrilling Wonder Stories, March 1940) • [Scientifacts] • (1940) • essay by Mort Weisinger
• 44 • Headliners in the Next Issue (Thrilling Wonder Stories, March 1940) • [Headliners in the Next Issue] • (1940) • essay by uncredited
• 45 • Via Sun • [Via • 6] • (1940) • short story by Otto Binder [as by Gordon A. Giles]
• 45 •  Via Sun • (1940) • interior artwork by uncredited
• 56 • The Planet of Change • (1940) • novelette by Manly Wade Wellman
• 56 •  The Planet of Change • (1940) • interior artwork by H. W. Wesso [as by H. Wesso]
• 72 • If — Wars Were Fought With Advanced Science • [If —] • (1940) • essay by Jack Binder
• 72 •  If — Wars Were Fought With Advanced Science • (1940) • interior artwork by Jack Binder
• 74 • Perfect Murder • (1940) • short story by H. L. Gold
• 74 •  Perfect Murder • (1940) • interior artwork by Frank R. Paul [as by Paul]
• 78 • The Thought Materializer • (1940) • short story by Leo Sonderegger
• 78 •  The Thought Materializer • (1940) • interior artwork by Leo Morey
• 79 • The Prize Winning Author: Leo Sonderegger • (1940) • essay by uncredited
• 85 • Worlds Within Worlds • (1940) • novelette by Frederic Arnold Kummer, Jr.
• 85 •  Worlds Within Worlds • (1940) • interior artwork by H. W. Wesso [as by H. Wesso]
• 86 •  Worlds Within Worlds [2] • (1940) • interior artwork by H. W. Wesso [as by H. Wesso]
• 87 •  Worlds Within Worlds [3] • (1940) • interior artwork by H. W. Wesso [as by H. Wesso]
• 93 •  Worlds Within Worlds [4] • (1940) • interior artwork by H. W. Wesso [as by H. Wesso]
• 116 • Looking Forward (Thrilling Wonder Stories, March 1940) • [Looking Forward (Thrilling Wonder Stories)] • (1940) • essay by The Editor
• 119 • Science Questions and Answers (Thrilling Wonder Stories, March 1940) • [Science Questions and Answers (Thrilling Wonder Stories)] • (1940) • essay by The Editor
• 120 • The Reader Speaks (Thrilling Wonder Stories, March 1940) • [The Reader Speaks] • (1940) • essay by uncredited
• 124 • The Story Behind the Story • (1940) • essay by uncredited
• 125 • The Story Behind the Story: The Time Cheaters • (1940) • essay by Otto Binder [as by Eando Binder]
• 126 • The Story Behind the Story: Worlds Within Worlds • (1940) • essay by Frederic Arnold Kummer, Jr.
• 127 • The Story Behind the Story: Via Sun • (1940) • essay by Otto Binder [as by Gordon A. Giles]
• 129 • The Swap Column (Thrilling Wonder Stories, March 1940) • [The Swap Column] • (1940) • essay by uncredited