Contents (view Concise Listing)

• 8 • Science Question Box: Three Classes of Meteors/Perpetual Motion/Radioactivity and Radium • [Science Question Box] • (1939) • essay by uncredited
• 12 • Review of the Science Fiction Fan Publications (Startling Stories, September 1939) • [Review of Science Fiction Fan Publications (Startling Stories)] • (1939) • essay by uncredited
• 15 • Vanguard of Science • (1939) • essay by Jack Williamson
• 16 • The Bridge to Earth • (1939) • novella by Robert Moore Williams
• 16 •  The Bridge to Earth • (1939) • interior artwork by H. W. Wesso
• 19 •  The Bridge to Earth [2] • (1939) • interior artwork by H. W. Wesso
• 21 •  The Bridge to Earth [3] • (1939) • interior artwork by H. W. Wesso
• 23 •  The Bridge to Earth [4] • (1939) • interior artwork by H. W. Wesso
• 27 •  The Bridge to Earth [5] • (1939) • interior artwork by H. W. Wesso
• 31 •  The Bridge to Earth [6] • (1939) • interior artwork by H. W. Wesso
• 33 •  The Bridge to Earth [7] • (1939) • interior artwork by H. W. Wesso
• 39 •  The Bridge to Earth [8] • (1939) • interior artwork by H. W. Wesso
• 45 •  The Bridge to Earth [9] • (1939) • interior artwork by H. W. Wesso
• 81 •  The Bridge to Earth [10] • (1939) • interior artwork by H. W. Wesso
• 88 • The Life Story of Alfred Bernhard Nobel Who Invented Dynamite • [They Changed the World] • (1939) • essay by Jack Binder
• 88 •  The Life Story of Alfred Bernhard Nobel Who Invented Dynamite • (1939) • interior artwork by Jack Binder
• 90 • Cosmic Stage • (1939) • short story by Robert Arthur
• 90 •  Cosmic Stage • (1939) • interior artwork by Virgil Finlay
• 97 • Big Cash Prizes (contest) • (1939) • essay by uncredited
• 98 • Thrills in Science: Thumbnail Sketches of Great Men and Achievements: Milestones of Madness • [Thrills in Science] • (1939) • essay by Mort Weisinger
• 99 • Thrills in Science: Thumbnail Sketches of Great Men and Achievements: The Last Theorem • [Thrills in Science] • (1939) • essay by Mort Weisinger
• 100 • Thrills in Science: Thumbnail Sketches of Great Men and Achievements: The Light-Trapper • [Thrills in Science] • (1939) • essay by Mort Weisinger
• 102 • The Misty Wilderness • (1938) • short story by John Russell Fearn
• 102 •  The Misty Wilderness • (1939) • interior artwork by H. W. Wesso
• 109 • The Ether Vibrates (Startling Stories, September 1939) • [The Ether Vibrates] • (1939) • essay by various
• 109 •  Letter (Startling Stories, September 1939): Wellman's Masterpiece • (1939) • essay by William L. Hamling [as by W. Lawrence Hamling]
• 109 •  Letter (Startling Stories, September 1939): Carlyle and Quade Plea • (1939) • essay by George M. Aylesworth [as by George Aylesworth]
• 110 • The Space Visitors • (1930) • short story by Edmond Hamilton
• 110 •  The Space Visitors • (1939) • interior artwork by uncredited
• 120 • Scientific Crossword Puzzle (Startling Stories, September 1939) • [Scientific Crossword Puzzle: Startling Stories] • (1939) • essay by uncredited
• 125 •  Letter (Startling Stories, September 1939): Wants Humor Yarns • (1939) • essay by L. Jerome Stanton [as by L. J. Stanton]
• 128 • Forecast for the Next Issue (Startling Stories, September 1939) • (1939) • essay by uncredited
• 129 • Meet the Author: A Self-Portrait (Startling Stories, September 1939) • (1939) • essay by Robert Moore Williams
• bc •  Startling Stories, September 1939 • (1939) • interior artwork by Howard V. Brown (variant of cover art for Startling Stories, July 1939) [as by H. V. Brown]