Number 1 edit
February 1937
Cover art by Leo Morey
- The Planet of Perpetual Night • John Edwards • novella
- Prometheus • Arthur K. Barnes • novelette
- By Jove! [Part 1 of 3] • Walter Rose • novel
- Denitro • Stanton A. Coblentz • short story
- The Last Neanderthal Man • Isaac R. Nathanson • novelette
Number 2 edit
April 1937
Cover art by Leo Morey
- Twin Worlds [Professor Jameson] • Neil R. Jones • novella
- "By Jove!" [Part 2 of 3] • Walter Rose • novel
- The Chemical Murder • Eando Binder • novelette
- Shifting Seas • Stanley G. Weinbaum • novelette
Number 3 edit
June 1937
Cover art by Leo Morey
- Murder by Atom [Donald Millstein] • Joseph Wm. Skidmore • novella
- The Company or the Weather • Miles J. Breuer • vignette
- By Jove! [Part 3 of 3] • Walter Rose • novel
- The Crystalline Salvation [Bell & Pearson] • George H. Scheer • novelette
- Crawling Terrors • Edmund Schueler • short story
Number 4 edit
August 1937
Cover art by Leo Morey
- Death in the Stratosphere • Henry J. Kostkos • novelette
- The Fireless Age [Part 1 of 2] • David H. Keller • novella
- Daughter of Luna • J. Lewis Burtt • short story
- Ants • Stanton A. Coblentz • poem (© Copyright Renewed: details pending.)
- Cupid of the Laboratory • William Lemkin • novella
- Antares Tryst • Richard Tooker • novelette
Number 5 edit
October 1937
Cover art by Leo Morey
- When Atlantis Was [Part 1 of 2] • H. F. Arnold • novella
- The Fireless Age [Part 2 of 2] • David H. Keller • novella
- The Last Ice • George H. Scheer • novelette
- "On the Planet Fragment" [Professor Jameson] • Neil R. Jones • novella
- Elegy to a Dead Satellite: Luna • Elton Andrews • poem
Number 6 edit
December 1937
Cover art by Leo Morey
- The Myriad • Harold S. Sykes • novelette
- When Atlantis Was [Part 2 of 2] • H. F. Arnold • novella
- Zagribud [Part 1 of 3; Elnek Jelfel] • John Russell Fearn • novel
- Landscapes of Luna • Bob Olsen • poem
- The Radium Doom • Milton R. Peril • novelette
- Blue Beam of Pestilence • Eando Binder • novelette