Contents (view Concise Listing)

• Out Around Rigel • (1931) • novelette by Robert H. Wilson
• Into the Meteorite Orbit • (1933) • novelette by Frank K. Kelly
• The Battery of Hate • (1933) • novelette by John W. Campbell, Jr.
• The Lost Language • (1934) • short story by David H. Keller, M.D.
• The Council of Drones • (1936) • novelette by William K. Sonnemann [as by W. K. Sonnemann]
• Pithecanthropus Rejectus • (1938) • short story by Manly Wade Wellman
• The Day Is Done • (1939) • short story by Lester del Rey
• The Wall • (1934) • short story by Howard Wandrei [as by Howard W. Graham, Ph.D.]
• The Last Men • [The Mini-Men] • (1934) • short story by Frank Belknap Long [as by Frank Belknap Long, Jr.]
• The Other • (1934) • short story by Howard Wandrei [as by Howard W. Graham, Ph.D.]
• Alas, All Thinking! • (1935) • novelette by Harry Bates
• Davey Jones' Ambassador • (1935) • novelette by Raymond Z. Gallun
• The Mad Moon • (1935) • novelette by Stanley G. Weinbaum
• The Time Decelerator • (1936) • short story by A. Macfadyen, Jr.
• Seeker of To-morrow • (1937) • novella by Leslie J. Johnson and Eric Frank Russell
• Hyperpelosity • (1938) • short story by L. Sprague de Camp
• The Merman • (1938) • short story by L. Sprague de Camp
• The Fifth-Dimension Catapult • [Tommy Reames • 1] • (1931) • novella by Murray Leinster
• Bibliography (Science Fiction of the Thirties) • (1975) • essay by uncredited
• The End • (1975) • essay by Damon Knight
• The Middle Period • (1975) • essay by Damon Knight
• The Early Years • (1975) • essay by Damon Knight
• Foreword (Science Fiction of the Thirties) • (1975) • essay by Damon Knight