N° 1 - Juin 1952
Couverture de Stanley Pitt

Red Death of Mars • novelette by Robert Moore Williams (variant of The Red Death of Mars 1940) [as by R. M. Williams ]
The Plants • (1946) • shortstory by Murray Leinster
 

N° 3 - Juillet 1952
Couverture de Safone Jais

The Man Who Sold the Moon • [D. D. Harriman] • (1950) • novella by Robert A. Heinlein

N° 4 - Août 1952
Couverture de Stanley Pitt

 Soldado Ant • (1952) • shortfiction by Murray Leinster [as by Will F. Jenkins ]
Private Eye • (1949) • novelette by Henry Kuttner and C. L. Moore [as by Lewis Padgett ]
Mouse • (1949) • shortstory by Fredric Brown
 

N° 5 - Septembre 1952
Couverture de Safone Jais

The Thing from Another World • (1938) • novella by John W. Campbell, Jr.

N° 6 - Octobre 1952
Couverture de Stanley Pitt

Death of the Moon • (1929) • shortstory by A. M. Phillips (variant of The Death of the Moon) [as by Alexander M. Phillips ]
Hermit of Saturn's Ring • (1940) • shortstory by Neil R. Jones
A Logic Named Joe • (1946) • shortstory by Murray Leinster [as by Will F. Jenkins ]
The Fourth Dimensional Demonstrator • (1935) • shortstory by Murray Leinster (variant of The Fourth-Dimensional Demonstrator)
 

N° 7 - Novembre 1952
Couverture de Stanley Pitt

The Unknown • (1952) • novella by Murray Leinster (variant of Fury from Lilliput 1949)

N° 8 Décembre 1952
Couverture de Stanley Pitt

Clash by Night • [Keeps • 1] • (1943) • novella by Henry Kuttner and C. L. Moore [as by Lawrence O'Donnell ]

N° 9 - Janvier 1953
Couverture ?

The Monster • (1953) • shortstory by Nelson S. Bond (variant of The Monster from Nowhere 1939) [as by Nelson Bond ]
The Ring • (1949) • shortstory by Nelson S. Bond [as by Nelson Bond ]
The Enchanted Pencil • (1946) • shortstory by Nelson S. Bond [as by Nelson Bond ]
The Mask of Medusa • (1945) • shortstory by Nelson S. Bond [as by Nelson Bond ]
 

N° 10 - Février 1953
Couverture de Stanley Pitt

fuge for Tonight • (1949) • novelette by Robert Moore Williams [as by Robert Williams ]
Locked Out • (1940) • shortstory by H. B. Fyfe
Schedule • (1945) • shortstory by Harry Walton
 

N° 11 - Mars 1953
Couverture de Stanley Pitt

Adventure in Time • (1952) • novelette by Lester del Rey (variant of Unto Him That Hath) [as by Philip St. John ]
Survival of the Fittest • (1951) • novelette by Gene L. Henderson
 

N° 12 - Avril 1953
Couverture de Stanley Pitt

Fires of Forever • (1952) • novelette by Chad Oliver (variant of The Fires of Forever) Reaching for the Moon • (1951) • shortstory by Evan Hunter [as by S. A. Lombino ]
The Way Back • (1951) • shortstory by Margaret St. Clair
 

N° 13 Mai 1953
Couverture de Stanley Pitt

Moonwalk • (1952) • novelette by H. B. Fyfe
Hero's Way • (1952) • shortstory by Judith Merril
Fool's Errand • (1951) • shortstory by Lester del Rey
 

N° 14 - Juin 1953
Couverture ?

Moon-Blind • (1952) • novelette by Lester del Rey [as by Erik Van Lhin ]
The Fence • (1952) • shortstory by Clifford D. Simak
Recognition • (1952) • shortstory by Tom Pace
 

N° 15 - Juillet 1953
Couverture ?

The Dead World • (1929) • novelette by Miles J. Breuer, M.D. and Clare Winger Harris (variant of A Baby on Neptune)
My Nephew Norvell • (1946) • shortstory by Nelson S. Bond [as by Nelson Bond ]
The Belt • (1951) • shortstory by Wallace West
 

N° 16 - Août 1953
Couverture de Stanley Pitt

Dead Knowledge • (1938) • novelette by John W. Campbell, Jr.
Men of the Ten Books • (1951) • shortstory by Jack Vance (variant of The Ten Books)
The Rats • (1951) • shortstory by Arthur Porges
 

N° 17 - Septembre 1953
Couverture de Stanley Pitt

Elimination • (1936) • shortstory by John W. Campbell, Jr.
Frictional Losses • (1936) • novelette by John W. Campbell, Jr.
The Altruist • (1951) • shortstory by Morton Klass
 

N° 18 - Octobre 1953
Couverture ?

Danger Moon • (1951) • novelette by Frederik Pohl (variant of Red Moon of Danger) [as by James MacCreigh ]

N° 19 - Novembre 1953
Couverture de Stanley Pitt

Veiled Knowledge • (1951) • novelette by James E. Gunn (variant of The Sun Came Up Last Night!) [as by Edwin JamesNo More Pencils • (1951) • shortstory by Joquel Kennedy
 

N° 20 - Décembre 1953
Couverture de Stanley Pitt

The Invaders • novelette by Robert S. Carr (variant of Easter Eggs 1949) [as by Robert Spencer Carr
Dwellers in Silence • [The Martian Chronicles] • (1948) • shortstory by Ray Bradbury
Flaw • (1949) • shortstory by John D. MacDonald