aoϋt 1954
Couverture ?

Boil One Cat • Lysander Kemp • ss
You Can Live Forever • Milton Lesser • nv
For Little George • Jay B. Drexel • ss
Trilley the Spoiler • Winston Marks • ss
The Seventh Bottle [by Howard Browne] • Ivar Jorgensen • nv
Dr. Schpritzer's Island • Vern Fearing • nv

octobre 1954
Couverture de Ernie Barth

Cosmic Appetite • Milton Lesser • ss
Nite File • Stan Baer • ss
The Outlaws • Lee Priestley • ss
The Murder-Con • Jerome Bixby • nv
Minister Without Portfolio • Michael Fischer • ss
The Yellow Needle • Gerald Vance • nv

dιcembre 1954
Couverture de Ralph Castenir

Water Cure • John Toland • na
The Spidery Pied Pipers • Robert Moore Williams •
The Courtship of 53 SHOTL 9 G • Niall Wilde • nv
The Vicar of Skeleton Cove [as by Lawrence Chandler on cover and toc.] • Ivar Jorgensen • nv
The Appointment • Raymond Stark • ss

fιvrier 1955
Couverture de Henry Sharp

The Patty-Cake Mutiny • Winston Marks • nv
The Gun • John Bernard Daley • nv
The Day After Eternity • Lawrence Chandler • 
Ourselves of Yesterday • T. D. Hamm • vi
While My Love Waits • Henry Still • ss
Cross Index • Randall J. Ross • ss; given as by Randall T. Ross on toc.
End of the Line • Thomas N. Scortia • vi
Love That Potion [*Reggie] • William P. McGivern • ss

juin 1955
Couverture de Valigursky

Beyond the Black Horizon • Paul W. Fairman • nv
The Typewriter • J. J. Allerton • ss
Too Tough to Bury • Ron Butler • ss
For the Greater Good • P. F. Costello • ss
The Killer Within • C. H. Thames • nv

aoϋt 1955
Couverture de Ed Valigursky

The Girl in Tube 14 • Dick Purcell • nv
Come Tuesday • Winston Marks • ss
Occupation Force • Frank Herbert • ss
The Smashers • Paul W. Fairman • nv
He Ran All the Way • Milton Lesser • nv

octobre 1955
Couverture de Ed Valigursky plus dessin original

Scavengers of Space • Clee Garson • nv
Signal Thirty-Three • Lee Grant • nv
What Number Are You Calling? • Ron Butler • 
Recruiting Officer • Alice Eleanor Jones • ss
This Is My Son • Paul W. Fairman • nv

fιvrier 1956
Couverture de Valigursky

Black Blockade • Paul W. Fairman • na
Quick Cure • Randall Garrett • ss
The Sore Spot • Ivar Jorgensen • nv
Mind Bet • George Julius • ss
Leave It to Umpax • Eric Dean • nv

avril 1956
Couverture de Valigursky

The Monarch of Mars • John Pollard • na
The Hero • Milton Lesser • ss
The Rough Rock Road • E. K. Jarvis • na
House of Toys • Karl Stanley • ss

juin 1956
Couverture de Valigursky plus dessin original

Conception: Zero • Gerald Vance • nv
Dream Girl • Robert Silverberg • nv
All Good Men • Milton Lesser
Everybody's Watching You • C. H. Thames • nv
Round Trip • Karl Stanley • ss

aoϋt 1956
Couverture de Valigursky

Guardian of the Crystal Gate • Robert Silverberg
The Long Forgotten • Henry Still • ss
O' Captain, My Captain [by Robert Silverberg] • Ivar Jorgensen • ss
Growing Pains • Robert Arnette • ss
The Slow and the Dead • Robert Randall • nv
Revolt of the Synthetics • Ralph Burke • ss

octobre 1956
Couverture de Edward Vligursky

The Passionate Pitchman • Stephen Wilder • nv
The Man Who Knew Everything • Randall Garrett •
An Eye for the Ladies • Darius John Granger • ss
Peter Merton's Private Mint • Lee Archer • ss
The Girl from Bodies, Inc. • Leonard G. Spencer •
The Pint-Sized Genie • Kate Wilhelm • ss

dιcembre 1956
Couverture de Valigursky

The Mummy Takes a Wife • Clyde Mitchell • nv
Death Rattle • O. H. Leslie • ss
The Fifth Stone • Alfred Coppel • ss
Coward's Death [by Henry Slesar] • Ivar Jorgensen • ss
Choke Chain • Robert Silverberg • nv
The Chimp • Henry Slesar • ss
Man of Many Bodies • Ralph Burke • ss