Fιvrier 1951
Couverture ?

Overlords of Maxus • Jack Vance • na
Man of Distinction • Fredric Brown • ss
Final Haven • Matt Lee • ss
Brother Worlds • Raymond Z. Gallun • nv
I, The Un-Mortal • Emmett McDowell • na
Just Push the Button • Samuel Mines • ss
Restricted Clientele • Kendell Foster Crossen • ss

Avril 1951
Couverture ?

The Continent Makers [*Viagens] • L. Sprague de Camp • na
The Replaced • Margaret St. Clair • ss
The Void Beyond • Robert Moore Williams • 
Milords Methuselah • Carter Sprague • nv
Overtime [*Johnny Norsen] • Mack Reynolds 
I'm a Stranger, Myself • Dallas Ross • ss
The First Long Journey • Raymond Z. Gallun • ss
Deception • Matt Lee • ss

Juin 1951
Couverture de Earle Bergey plus dessin original

Son of the Tree • Jack Vance
Fog • William Campbell Gault
Girl from Callisto • Roger Dee
Temporary Keeper • H. B. Fyfe • nv
I Psi • Carter Sprague • nv
A Thesis for Branderbook • Charles L. Harness • 

Aoϋt 1951
Couverture de Earle Bergey

Alarm Reaction • Raymond F. Jones • nv
The Jester • William Tenn • ss
Earthlight • Arthur C. Clarke • nv
The Dome • Fredric Brown • ss
No Dipsy for Dix • Larry Clinton • ss
At Your Service • Cleve Cartmill • ss
Ultimate Purpose • Walter Kubilius & Fletcher Pratt 
These Things Are Sirius • Edwin James • ss

Dιcembre 1951
Couverture ?

The Wanderer's Return • Fletcher Pratt • na
The Iron Deer • Sam Merwin, Jr. • ss
Escape from Hyper-Space • E. Hoffmann Price
Star Bride • Anthony Boucher • vi
The Way of the Moth • Stanton A. Coblentz • ss
The Song of Vorhu • Walter M. Miller, Jr. • nv
Keyhole • Murray Leinster • ss

Fιvrier 1952
Couverture de Earle Bergey plus dessin intιrieur de Virgil Finlay pour "Abercrombie Station"

Abercrombie Station [*Jean Parlier] • Jack Vance 
The Star Minstrel • Walt Sheldon • ss
Solution Vital • Walter Kubilius & Fletcher Pratt 
And Someday to Mars • Frank Belknap Long • ss
The Regal Rigelian [*Manning Draco] • Kendell Foster Crossen • nv
Survival • John Wyndham • nv
Alien Psychologist • Erik Fennel • ss

Avril 1952
Couverture de Emsh

Double Jeopardy [*George Helmfleety Jones] • Fletcher Pratt • na
Moment Without Time • Joel Townsley Rogers
The Foodlegger • Richard Matheson • ss
The Promise • D. S. Halacy, Jr. • ss
The Planet Mender • George O. Smith • nv
Counter-Transference • William F. Temple • ss
Public Eye • Anthony Boucher • ss

Juin 1952
Couverture de Earle Bergey

The Gadget Had a Ghost • Murray Leinster • na
Papa Knows Best • Wallace Umphrey • ss
The Square Cube Law [*George Helmfleety Jones] • Fletcher Pratt • na
Such an Angel • R. J. McGregor • ss
Bombs Awry • George O. Smith • nv
The Foxholes of Mars • Fritz Leiber • ss

Aoϋt 1952
Couverture de Emsh

Lords of the Morning • Edmond Hamilton • 
Counterfeit • Alan E. Nourse • nv
The Middle of the Week After Next • Murray Leinster • ss
Hallucination • Charles E. Fritch • vi
Cholwell's Chickens [*Jean Parlier] • Jack Vance 
The Quaker Lady and the Jelph • Phyllis Sterling Smith • ss
Sort of Like a Flower • Jerome Bixby • ss

Octobre 1952
Couverture de Earle Bergey

The Bird of Time [*Yahna] • Wallace West • na
The Kokod Warriors [*Magnus Ridolph] • Jack Vance • nv
Fool's Errand • Paul Lawrence Payne • ss
The Polluxian Pretender [*Manning Draco] • Kendell Foster Crossen • nv
Remembrance of Things to Come • William Ratigan • ss
The Reasonable People • Roger Dee • ss