January 1948
Cover art by Ramon Naylor
- Flight of the Starling • Chester S. Geier • novella
- Hate (Phillips) • Rog Phillips • novelette
- The Rikits of Mars • Don Wilcox • novella
- The Fire-Trail • Oge-Make • short story
February 1948
Cover art by Malcolm Smith
- Prometheus II [Stephen Germain] • S. J. Byrne • novel
- The Phantom Hands • Berkeley Livingston • short story
- Strictly from Mars • Robert Bloch • novelette (© Copyright Renewed: details pending.)
March 1948
Cover art by Robert Gibson Jones
- Gods of Venus [Big Jim Steele] • Richard S. Shaver • novel
- The Egg of Time • Millen Cooke • short story
- Everything but the Sink • Berkeley Livingston • short story
- Flesh Against Spirit • Alexander Blade • short story
April 1948
Cover art by Robert Gibson Jones
- The Monster from Mars • Alexander Blade • novelette
- "Wa-al, Bust Mah Britches!" • J. J. Pelletier • short story
- Secret of the Yellow Crystal • Guy Archette • novelette
- Drink Like a Fish • Berkeley Livingston • short story
- Secret of the Robot • Chester S. Geier • short story
- The Man in the Moon (Barclay) • Lester Barclay • short story
- The Wandering Egos • Emmett McDowell • novella
May 1948
Cover art by Robert Gibson Jones
- Armageddon • Craig Browning • novel
- Doom Globe • S. M. Tenneshaw • short story
- Illusion on Callisto • Warren Kastel • short story
- Justice Satellite • Guy Archette • novelette
- Forgotten Hades • Lee Francis • novelette
June 1948
Cover art by Robert Gibson Jones
- Ice City of the Gorgon • Richard S. Shaver & Chester S. Geier • novella
- The Pied Piper of Space • S. M. Tenneshaw • short story
- Lunar Monkey Business • Warren Kastel • short story
- The Valley of Madness • Alexander Blade • short story
- The Ocean Den of Mercury • Miles Shelton • novella
July 1948
Cover art by Arnold Kohn
- The Man from Agharti [Ira Travers] • John & Dorothy de Courcy • novella
- Mystery of the Midgets • E. K. Jarvis • novelette
- The Death of Asteroid 13 • William P. McGivern • novelette
- That We May Rise Again… • Charles Recour • short story
- In All Probability • Irving Gerson • short story
- The Triumph of the Pig • Berkeley Livingston • short story
- The Supernal Note • Rog Phillips • short story
- Amoeba 'Roid • Charles Recour • short story
August 1948
Cover art by Robert Gibson Jones
- Holey Land • S. M. Tenneshaw • short story
- The Venusian • Craig Browning • novella
- Starship from Sirius • Rog Phillips • novella
- Dead on Arrival • Robert Morrison • short story
September 1948
Cover art by Robert Gibson Jones
- The Squirrel People • John C. Ross • novelette
- New Face—Same Heel • Samuel F. Roeca • novelette
- Titan's Daughter [Big Jim Steele] • Richard S. Shaver • novel
October 1948
Cover art by James B. Settles
- The Cube Root of Conquest • Rog Phillips • short story
- Death of a B.E.M. • Berkeley Livingston • short story
- The Frightened Planet • Sidney Austen • short story
- The Return of Tharn [Part 1 of 3; Tharn] • Howard Browne • novel
- The Brain • Alexander Blade • novel
November 1948
Cover art by Robert Gibson Jones
- The Eye of Wilbur Mook • H. B. Hickey • novelette
- Cold Ghost • Chester S. Geier • short story
- Castle of Terror • E. J. Liston • short story
- Phantom of the Forest • Lee Francis • short story
- The Return of Tharn [Part 2 of 3; Tharn] • Howard Browne • novel
- Oogie Finds Love • Berkeley Livingston • short story
- Day of the Druid • Knut Enferd • short story
December 1948
Cover art by H. W. McCauley
- Daughter of the Night [The Red Dwarf] • Richard S. Shaver • novelette
- The Plotters • Alexander Blade • short story
- Tillie • Craig Browning • short story
- Once Upon a Planet • J. J. Allerton • short story
- The Unthinking Destroyer • Rog Phillips • short story
- Beyond the Thunder • H. B. Hickey • novelette
- The Return of Tharn [Part 3 of 3; Tharn] • Howard Browne • novel