N° 11 - fιvrier 1942
Couverture ?

Cross of Mercrux • Harry Walton • nv
Child of the Green Light • Leigh Brackett • ss
Spaceship from Korl • Frederic Arnold Kummer, Jr. • nv
Atrakin and the Man • Walter Kubilius • ss
The Waters Under the Earth • James D. Perry 
The Wicked People • Ross Rocklynne • ss
The Hunted Ones • John E. Harry • nv

N° 12 - mai 1942
Couverture de Virgil Finlay plus dessin original

Prisoner of Time • Polton Cross • nv
The Missing Day • Henry Hasse • nv
Sunken Universe [*Lavon] • Arthur Merlyn • ss
Space Hitch-Hiker • Eando Binder • ss
Andryne • Arthur Macom • ss
The World Within • Nelson S. Bond • ss
The Lemmings • Wilfred Owen Morley • ss
The Weapon • H. B. Ogden • ss
Dreadnoughts of Doom • Henry Andrew Ackermann • ss

N° 13 - aoϋt 1942
Couverture de Hubert Rogers

Cube from Space • Leigh Brackett • nv
Mars Warning • Henry Hasse • ss
Wreckers of the Star Patrol • Malcolm Jameson 
An Old Neptunian Custom • Scott Mariner • ss
Victory Unintentional • Isaac Asimov • ss
Cham of the Hills • Charles R. Tanner • nv
Return from Zero • Ross Rocklynne • ss

N° 14 - novembre 1942
Couverture de Stephen Lawrence

We Guard the Black Planet! • Henry Kuttner • 
The Revolt of the Machine Men • Charles R. Tanner 
Sky Test [with Frederik Pohl] • Dirk Wylie • nv
Parrots of Venus • Walter Kubilius • ss
The Imaginary [*Tan Porus] • Isaac Asimov • 
The Man Without a Planet • Ivar Towers • ss
His Aunt Thiamin • Alan Barrister • nv
The Planet Called Aquella • Martin Pearson • ss
Beyond the End of Time • Ray Cummings • ss

N° 15 - fιvrier 1943
Couverture de Virgil Finlay

For Sale—One World • Ross Rocklynne • nv
The Persecutors • Cleve Cartmill • na
Garments of Doom • William Morrison • ss
Circle of Youth • Frank Belknap Long • ss
Sunward Flight • Arthur Leo Zagat • na
The Fear Planet • Robert Bloch • ss
War God's Gamble • Harry Walton • ss

N° 16 - mai 1943
Couverture de Virgil Finlay

The Angular Stone • Henry Hasse • na
Reader, I Hate You! • Henry Kuttner • ss
Legion of the Dark • Manly Wade Wellman • nv
The Darker Light • Cleve Cartmill • ss
Exile • Edmond Hamilton • ss
New Day on Aurora • Stuart Fleming • ss
Journey's End • Walter Kubilius • ss

N° 17 - janvier 1949
Couverture de Stephen Lawrence

The Black Sun Rises • Henry Kuttner • nv 
The Silence • Ray Bradbury • ss 
Moonworm's Dance • Stanley Mullen • nv
The Other • Sanford Vaid • ss 
The Bounding Crown • James Blish • nv 
A Handful of Stars • Walter Kubilius • nv 
The Sky Will Be Ours • Manly Wade Wellman • 
Cabal • Cleve Cartmill • ss

N° 18 - avril 1949
Couverture de Stephen Lawrence

Death Quotient • John D. MacDonald • nv
I, Mars • Ray Bradbury • ss
All Our Yesterdays • John Wade Farrell • ss
The Earth Killers • A. E. van Vogt • nv
Darkside Destiny • James MacCreigh • ss 
Dhactwhu!—Remember? • Wilfred Owen Morley & Jacques DeForest Erman • nv
Delusion Drive [by John D. MacDonald] • Peter Reed 
Son of the Stars • F. Orlin Tremaine • ss

N° 19 - juillet 1949
Couverture de Stephen Lawrence

The Brain Beast • William F. Temple • na
The Hunted • John D. MacDonald • ss
The Wall of Darkness • Arthur C. Clarke • ss
Dreadful Dreamer • Margaret St. Clair • ss
Spaceman, Beware! • Stanley Mullen • ss
Changeling • Ray Bradbury • ss
The Survivors • Bryce Walton • ss
Gravity Trap • Damon Knight • ss
The Hand from the Stars • Kris Neville • ss

N° 21 - novembre 1949
Couverture de Stephen Lawrence

Gateway to Darkness [*Crag] • Fredric Brown 
The Timeless Man • Frank Belknap Long • ss
This Star Shall Be Free • Murray Leinster • ss
Child of Void • Margaret St. Clair • ss
Impossible • Ray Bradbury • ss
Appointment for Tomorrow • John D. MacDonald 
The Sleepers • John Wade Farrell • ss
Parasite Planet [*Professor Jameson] • Neil R. Jones • nv