Contents (view Concise Listing)

• 12 • The Hothouse Planet • [Gerry Carlyle] • novelette by Arthur K. Barnes
• 12 •  The Hothouse Planet • interior artwork by H. W. Wesso
• 30 • The Space-Time-Size Machine • [Tubby Maguire] • short story by Ray Cummings
• 30 •  The Space-Time-Size Machine • interior artwork by H. W. Wesso
• 37 • Scientifacts (Thrilling Wonder Stories, October 1937) • [Scientifacts] • essay by J. B. Walter
• 40 • The Immortality Seekers • [Penton and Blake] • novelette by John W. Campbell, Jr.
• 40 •  The Immortality Seekers • interior artwork by uncredited
• 59 • Holmes' Folly • short story by Edmond Hamilton
• 59 •  Holmes' Folly • interior artwork by uncredited
• 66 • The Cavern of the Shining Pool • short story by Arthur Leo Zagat
• 66 •  The Cavern of the Shining Pool • interior artwork by M. Marchioni
• 79 • Via Etherline • [Via • 1] • short story by Otto Binder [as by Gordon A. Giles]
• 79 •  Via Etherline • interior artwork by uncredited
• 87 • Zarnak: "Harnessed Elements" (Part 8 of 8) • serial by Max Plaisted (book publication as Zarnak 1936)
• 90 • When the Earth Lived • short story by Henry Kuttner
• 90 •  When the Earth Lived • interior artwork by uncredited
• 100 • Scientibook Review (Thrilling Wonder Stories, October 1937) • short fiction by uncredited
• 102 • A Comet Passes • short story by Otto Binder [as by Eando Binder]
• 102 •  A Comet Passes • interior artwork by M. Marchioni
• 114 • Science Questions and Answers (Thrilling Wonder Stories, October 1937) • essay by The Editor
• 116 • The Reader Speaks ( Thrilling Wonder Stories, October 1937) • [The Reader Speaks] • essay by The Editor
• 116 •  Letter: (Thrilling Wonder Stories, October 1937): Cover Liked • essay by Robert A. Madle
• 117 •  Letter: (Thrilling Wonder Stories, October 1937): Brickbats • essay by John Giunta
• 117 •  Letter: (Thrilling Wonder Stories, October 1937): T. W. S. O.K. • essay by John V. Baltadonis
• 118 • The Science Fiction League • essay by uncredited
• 120 • The Story Behind the Story (Thrilling Wonder Stories, October 1937) • essay by uncredited
• 120 • The Story Behind the Story: The Space-Time-Size Machine • essay by Ray Cummings
• 120 • The Story Behind the Story: The Immortality Seekers • essay by John W. Campbell, Jr.
• 121 • The Story Behind the Story: When the Earth Lived • essay by Henry Kuttner
• 121 • The Story Behind the Story: The Cavern of the Shining Pool • essay by Arthur Leo Zagat
• 122 • The Story Behind the Story: A Comet Passes • essay by Otto Binder [as by Eando Binder]
• 123 • The Story Behind the Story: The Hothouse Planet • essay by Arthur K. Barnes