Number 1 edit
April 1933
Cover art by ?
- When the Comet Returned • Harl Vincent • novella
- Beyond the End of Space [Part 2 of 2] • John W. Campbell • novella
- Revelation • V. R. Eberhart • poem
- Ancients of Easter Island • F. Stanley Renshaw • short story
- The Memory Stream • Warren E. Sanders • short story
- The Phantom of Terror • Ed Earl Repp • novelette
- Author's Adventure • Arthur L. Bain • vignette
- Universal Merry-Go-Round • Roger Bird • novelette
Number 2 edit
May 1933 (transcription project)
Cover art by A. Sigmond
- The Death Drum • A. Hyatt Verrill • novella
- Martian and Troglodyte • Neil R. Jones • novella
- Jeremiah Jones, Alchemist • P. Schuyler Miller • novelette
- The Three Suns of Ev • Edwin K. Sloat • novelette
- The Bronze Door • Jerry Benedict • short story
- The Girl and the Glacier • George P. Pearce • short story
- The Good-Natured Pendulum • Edward Everett Hale • short story
Number 3 edit
June 1933
Cover art by A. Sigmond
- Tumithak in Shawm [Tumithak] • Charles R. Tanner • novella
- Warriors of Zantos • William Russell Moore • vignette
- The Intelligence Gigantic [Part 1 of 2] • John Russell Fearn • novel
- Prayer of an Elderly Philosopher • Pauline E. Thomas • poem
- The Crime Crusher • Bob Olsen • novella
Number 4 edit
July 1933
Cover art by ?
- Unto Us a Child Is Born • David H. Keller • short story
- Hibernation • Abner J. Gelula • novelette
- The Intelligence Gigantic [Part 2 of 2] • John Russell Fearn • novel
- Cavern of Thunders • Harl Vincent • novella
- The Flight of the RX-1 • Raymond Z. Gallun • short story
Number 5 edit
August–September 1933
Cover art by Leo Morey
- The Meteor-Men of Plaa • Henry J. Kostkos • novella
- Head Hunters Fooled and Foiled • Paul Drennen • vignette
- Children of the Great Magma • Walter Kateley • novella
- Adrift on a Meteor • Jack Winks • short story
- The Essence of Life • Festus Pragnell • novelette
- The Pellucid Horror • B. F. Ruby • short story
- The Silicon Empire • Fritz Burg • novelette
- Across the Ages [plagiarism of "The Heat Wave" by Marion Ryan & Robert Ord, Munsey's Magazine, April 1929] • Allen Glasser • short story
Number 6 edit
October 1933
Cover art by Leo Morey
- The Men Without Shadows • Stanton A. Coblentz • novelette
- Theft of the Washington Monument • Robert Arthur • short story
- When the Universe Shrank [Part 1 of 2] • J. Lewis Burtt • novella
- The Tree Terror • David H. Keller • short story
- Into the Hydrosphere [Professor Jameson] • Neil R. Jones • novella
- The Supermen • David M. Speaker • short story
- The Diamond Lens • Fitz-James O'Brien • novelette
Number 7 edit
November 1933
Cover art by Leo Morey
- Whisper of Death • Harl Vincent • novella
- The Notorious "C39" • Jack O. Bearden • vignette
- The Battery of Hate • John W. Campbell • novelette
- Retribution • Robert Baldwin • vignette
- The Beetle in the Amber • Joe W. Skidmore • short story
- When the Universe Shrank [Part 2 of 2] • J. Lewis Burtt • novella
- When the Moon Moons • Webster Watson • vignette
- The Price of Peace • Mortimer Weisinger • short story
- Mellonta Tauta • Edgar Allan Poe • short story
Number 8 edit
December 1933
Cover art by Leo Morey
- Time's Mausoleum [Professor Jameson] • Neil R. Jones • novelette
- The Strength of the Weak • Miles J. Breuer • short story
- The Four Dimensional Escape • Bob Olsen • novelette
- Within Sight of Hell • Alcan Hirsch • short story
- Into the Meteorite Orbit • Frank K. Kelly • novelette
- A Vision of Venus • Otis Adelbert Kline • short story
- Island of Science • B. S. Keirstead • short story
- Redwoods • Stanton A. Coblentz • poem (© Copyright Renewed as part of Songs of the Redwoods; Stanton A. Coblentz (A); 26Apr61; R275002.)
- The Watch's Soul • Jules Verne • novelette
Number 9 edit
January 1934
Cover art by Leo Morey
- Triplanetary [Part 1 of 4; Lensmen] • Edward E. Smith • novel
- Master of Dreams • Harl Vincent • novelette
- In 1999 • Bob Olsen • poem
- Adventures of Posi and Nega [Posi & Nega] • Joe W. Skidmore • novelette
- The Lost Language • David H. Keller • short story
- Gold • Isaac R. Nathanson • novelette
- The Alchemy of Ian Bjornsen • Warren F. Doane • short story
- The Atom Smasher • P. Schuyler Miller • short story
Number 10 edit
February 1934
Cover art by Leo Morey
- Terror Out of Space [Part 1 of 4] • H. Haverstock Hill • novel
- The Regenerative Wonder • Winthrop W. Hawkins • novelette
- Triplanetary [Part 2 of 4; Lensmen] • Edward E. Smith • novel
- The Death Protozoan • Clifton B. Kruse • short story
- The Time Jumpers • Philip Francis Nowlan • short story
- A Descent Into the Maelström • Edgar Allan Poe • novelette
Number 11 edit
March 1934
Cover art by Leo Morey
- Triplanetary [Part 3 of 4; Lensmen] • Edward E. Smith • novel
- Peril Among the Drivers • Bob Olsen • novella
- Terror Out of Space [Part 2 of 4] • H. Haverstock Hill • novel
- The Man Who Stopped the Earth • Henry J. Kostkos • short story
- A Job of Blending • Victor A. Endersby • short story
- Ms. Found in a Bottle • Edgar Allan Poe • short story
Number 12 edit
April 1934
Cover art by Leo Morey
- Cat's Eye • Harl Vincent • novelette
- Triplanetary [Part 4 of 4; Lensmen] • Edward E. Smith • novel
- The Mentanicals • Francis Flagg • novelette
- Terror Out of Space [Part 3 of 4] • H. Haverstock Hill • novel
- The Gold-Bug • Edgar Allan Poe • novelette