N°
1 nouvelle sιrie - Mai 1951
Couverture de Milton Luros
No War Tomorrow [*Old Tom] Wallace West
Stopwatch on the World Daniel R. Gilgannon
Absolutely No Paradox Lester del Rey ss
The Deadly Thinkers William Gray Beyer nv
Righteous Plague Robert Abernathy ss
Atomic Bonanza George O. Smith ss
Turn Backward, O Time! Walter Kubilius ss
A Matter of Frequency William Tenn ss
Star Bright Bryce Walton ss
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N°
2 - Aoϋt 1951
Couverture de Leo Morey
The Sun Came Up Last Night! Edwin James nv
Danger Moon James MacCreigh na
Seeds of Insecurity Larry T. Shaw ss
No More Pencils, No More Books Joquel Kennedy
The Altruist Morton Klass ss
Second Dawn Arthur C. Clarke nv
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N°
3 - Novembre 1951
Couverture de Milton Luros
We Shall Come Back C. H. Liddell nv
The Black Alarm George O. Smith nv
The Belt Wallace West ss
Fugue Stephen Marlowe nv
Survival of the Fittest Gene L. Henderson
Fool's Errand Lester del Rey ss
Reaching for the Moon S. A. Lombino ss
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N°
4 - Fιvrier 1952
Couverture de Milton Luros
Three Worlds in Shadow Joe Gibson na
Rogue Princess L. Sprague de Camp nv
Communicado Katherine MacLean ss
Ordeal on Syrtis Milton Lesser ss
Intervention Michael Sherman ss
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N°
5 - Mai 1952
Couverture de Milton Luros
The Shining City Rena M. Vale na
When in Doubt, Mutate! E. Hoffmann Price
Extra-Secret Agent H. B. Fyfe nv
The Luckiest Man Alive! William Morrison
We, The People Ward Moore ss
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N°
6 - Aoϋt 1952
Couverture de Milton Luros
All the Answers Rog Phillips nv
The Seven Securities Hamlin Daly nv
Wild Talents, Inc. Milton Lesser ss
Goblin Planetoid Vaseleos Garson nv
Welcome Alfred Coppel vi
Alien Restoration Charles Dye ss
Silent Partner S. A. Lombino ss
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N°
7 - Novembre 1952
Couverture de Milton Luros
The Timeless Ones Eric Frank Russell ss
The Captive Audience Larry T. Shaw nv
Defender of the Faith Alfred Coppel ss
The Prowler William C. Bailey ss
Scent of Danger William Morrison & Harry Nix
Signpost in the Sky W. Malcolm White ss
The Last Robot Richard Terzian vi
Horatio, The Creator Francis L. Fugate ss
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N°
8 - Fιvrier 1953
Couverture de A. Leslie Ross
The Green Thumb [*Wilson Pete] Poul Anderson
The Four Commandments Robert Abernathy
Dugal Was a Spaceman Joe Gibson nv
Escape Valve Charles Dye nv
A Little Knowledge Judith Merril ss
Aristotle John Christopher ss
Shoo Fly W. Malcolm White ss
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N°
9 - Mai 1953
Couverture de Milton Luros
Intermission Time Raymond F. Jones nv
She Called Me Frankie Robert K. Ottum ss
The World She Wanted Philip K. Dick ss
Lifework Robert Abernathy nv
The Mud Puppy William C. Bailey ss
Time Goes to Now Charles Dye ss
The Visitors C. H. Liddell ss
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N°
10 - Aoϋt 1953
Couverture de Leslie Ross
Dreadful Therapy Bryce Walton nv
Common Time James Blish nv
Characteristics: Unusual Randall Garrett
Advice from Tomorrow Mack Reynolds
Halt the Blue Star's Rising Milton Lesser
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N°
11 - Novembre 1953
Couverture de Jack Coggins
The Irrationals Milton Lesser nv
Mercury Bill and the Amorous Hunk Charles A. Stearns ss
Architect of Chaos John Danelaw ss
Curtain in the Sky Charles Dye ss
The Myth-Makers Bryce Walton ss
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