N° 1 - juillet 1929
Couverture de Frank R. Paul

The Ark of the Covenant [Part 1 of 4] • Victor MacClure • n
Islands in the Air • Lowell Howard Morrow • 
The Beacon of Airport Seven • Harold S. Sykes 
The Bloodless War • David H. Keller, M.D. • 
Men with Wings [*Mentor] • Leslie F. Stone • 

N° 2 - aoϋt 1929
Couverture DE fRANK R. PAUL et dessin original

The Silent Destroyer [*Capt. Gauthier] • Henrik Dahl Juve • nv
Beyond Gravity [*Robert Allison] • Ed Earl Repp
The Ark of the Covenant [Part 2 of 4] • Victor MacClure • n
The Planet's Air Master [*Air Master] • Edward E. Chappelow 

N° 3 - septembre 1929
Couverture ?

The Yellow Air-Peril • Harl Vincent • nv Where Gravity Ends • Robert H. Leitfred • ss
The Ark of the Covenant [Part 3 of 4] Flight in 1999 • Bob Olsen • ss
The Air Terror [*Mr. Clare] • Lowell Howard Morrow • nv

N° 4 - octobre 1929
Couverture de Frank R. Paul

The Sky Maniac [*Capt. Gauthier] • Henrik Dahl Juve • nv
Around the World in 24 Hours • R. H. Romans •
Through the Air Tunnel • Harl Vincent • ss
The Air Spy • Edward Lee Harrison • ss
The Ark of the Covenant [Part 4 of 4] • Victor MacClure • n
The Invisible Raiders [*Capt. Wollack] • Ed Earl Repp • ss
The Robot Master • O. Beckwith • ss

N° 5 - novembre 1929
Couverture de Frank R. Paul

Cities in the Air [Part 1 of 2] • Edmond Hamilton
When Space Ripped Open • Ralph W. Wilkins • nv
Suitcase Airplanes • E. D. Skinner • ss Beyond the Aurora [*Capt. Wollack] • Ed Earl Repp • nv
The Second Shell • Jack Williamson • nv
The Crystal Ray • Raymond Gallun • ss

N° 6 - dιcembre 1929
Couverture de Frank R. Paul

The Blue Demon [*Mr. Clare] • Lowell Howard Morrow • nv
Flight of the Eastern Star • Ed Earl Repp • nv
The Phantom of Galon • J. W. Ruff • nv
Freedom of the Skies • Edsel Newton • nv
Flannelcake's Invention • Harold B. McKay • ss
Cities in the Air [Part 2 of 2] • Edmond Hamilton 

N° 7 - janvier 1930
Couverture de Frank R. Paul

The Flying Legion [Part 1 of 4] • George Allan England • n
The Storm Buster • Ed Earl Repp • nv
The Death's Head Meteor • Neil R. Jones • ss
The Thunderer • A. H. Johnson • nv

N° 8 - fιvrier 1930
Couverture de Frank R. Paul

The Vanishing Fleet [*Capt. Gauthier] • Henrik Dahl Juve • nv
The Red Ace • Eugene George Key • nv
Liners of Space • Jim Vanny • nv
The Flying Legion [Part 2 of 4] • George Allan England • n.

N° 9 -mars 1930
Couverture de Frank R. Paul

The Return of the Air Master [*Air Master] • Edward E. Chappelow • na
The Space Visitors • Edmond Hamilton • ss
The X-Gas • Cyril Plunkett • ss
The Flying Legion [Part 3 of 4] • George Allan England • n

N° 10 - avril 1930
Couverture de Frank R. Paul

Through the Meteors • Lowell Howard Morrow •
The Heat-Ray • O. L. Beckwith • ss
The Flying Buzz-Saw • Harold B. McKay • ss
Evans of the Earth-Guard • Edmond Hamilton •
The Meteoric Magnet • Moses Schere • ss
The Flying Legion [Part 4 of 4] • George Allan England • n

N° 11 - mai 1930
Couverture ?

The Air Trap • Edward E. Chappelow • nv The Arctic Rescue • Walter Kateley • nv Women with Wings [*Mentor] • Leslie F. Stone • na
The Invisible Destroyer • L. A. Eshbach • nv
The Sky Ruler • Ed Earl Repp • nv
The Bat-Men of Mars [Part 1 of 3] • Wood Jackson

N° 1 - juin 1929
Couverture de Frank R. Paul

The Reign of the Ray [Part 1 of 2] • Irvin Lester & Fletcher Pratt • n.
The Diamond Maker • H. G. Wells • ss
Warriors of Space [*Professor Maynard] • James P. Marshall • nv
The Marble Virgin • Kennie McDowd • nv
The Threat of the Robot • David H. Keller, M.D. 
The Making of Misty Isle • Stanton A. Coblentz 

N° 2 - juillet 1929
Couverture de Frank R. Paul

The Alien Intelligence [Part 1 of 2] • Jack Williamson • na
The Reign of the Ray [Part 2 of 2] • Irvin Lester & Fletcher Pratt • n.
The Boneless Horror • David H. Keller, M.D. • ss
The Menace from Below [*Ward Platt] • Harl Vincent • na

N° 3 - aoϋt 1929
Couverture de Frank R. Paul

The Moon Beasts • William P. Locke • na
The Radium Pool [Part 1 of 2] • Ed Earl Repp 
The Eternal Man [*Herbert Zulerich] • D. D. Sharp 
The Alien Intelligence [Part 2 of 2] • Jack Williamson • na
The Feminine Metamorphosis • David H. Keller, M.D. • na

N° 4 - septembre 1929
Couverture de Frank R. Paul

The Human Termites [Part 1 of 3] • David H. Keller, M.D. • n.
The Cubic City • Louis Tucker • nv
The Onslaught from Venus • Frank Phillips • na
The Radium Pool [Part 2 of 2] • Ed Earl Repp •

N° 5 - octobre 1929
Couverture de Frank R. Paul

The Metal World • Ed Earl Repp • nv
The Ancient Brain • A. G. Stangland • nv
The Human Termites [Part 2 of 3] • David H. Keller, M.D. • n.
Into the Subconscious • Ray Avery Myers • 
From Eros to Earth • Walter Kateley • nv
In Two Worlds • Edward E. Chappelow • nv

N° 6 - novembre 1929  
Couverture de Frank R. Paul

The Phantom Teleview • Bob Olsen • nv
The Killing Flash • Hugo Gernsback • ss
The Stellar Missile [*Brandon] • Ed Earl Repp •
The Gold Triumvirate • Walter Kateley • nv
The Space Dwellers • Raymond Gallun • ss
The Human Termites [Part 3 of 3] • David H. Keller, M.D. • n.
The Green Intelligence • Harley S. Aldinger • ss

N° 7 - dιcembre 1929  
Couverture de Frank R. Paul

The Conquerors [Part 1 of 2; *Harry Brunton] • David H. Keller, M.D. • n.
The Time Oscillator [*Mr. Brown] • Henry F. Kirkham • nv
The Radiation of the Chinese Vegetable • C. Sterling Gleason • ss
The Super Velocitor • S. C. Carpenter • nv
The Lost Martian • Henry Harbers • nv

N° 8 - janvier 1930  
Couverture de Frank R. Paul

The Fitzgerald Contraction [*Wendelin] • Miles J. Breuer, M.D. • nv
The Red Dimension • Ed Earl Repp • ss
The Vapor Intelligence • Jack Barnette • ss
The Conquerors [Part 2 of 2; *Harry Brunton] • David H. Keller, M.D. • n.

N° 10 -mars 1930
Couverture de Frank R. Paul

Before the Asteroids • Harl Vincent • na
The Color of Space • Charles R. Tanner • ss
The Relics from the Earth • John R. Pierce • ss
The Manuscript Found in the Desert • Frank J. Brueckel, Jr. • ss
Raiders from Space • Harold A. Lower • ss; given as by Vernon A. Lower on toc.
The Mystery Metal • H. & Maurice James • ss
The Insatiable Entity • Harold S. Sykes • ss
A Rescue from Jupiter [Part 2 of 2; *Allus Marce] • Gawain Edwards • 
Professor Diel's Ray • Frank J. Brueckel, Jr. • ss

N° 11 - avril 1930  
Couverture de Frank R. Paul

The Evening Star [Part 1 of 2; *Harry Brunton] • David H. Keller, M.D. • n.
The Falling Planetoid • I. R. Nathanson • ss
The Return to Subterrania [*Ward Platt] • Harl Vincent • na
Cosmic Trash • Bob Olsen • ss
The Day of Judgement • Victor A. Endersby • ss
The Menace from the Skies • Arthur G. Stangland • ss
An Adventure in Time • Francis Flagg • na

N° 12 - mai 1930
Couverture de Frank R. Paul

Gulf Stream Gold • Ed Earl Repp • nv
The Infinite Brain • John Scott Campbell • na; given as by John C. Campbell.
The Day of the Beast • D. D. Sharp • ss
The City of the Living Dead • Laurence Manning & Fletcher Pratt • nv
The Evening Star [Part 2 of 2; *Harry Brunton] • David H. Keller, M.D. • n.
The Horrible Transformation • J. Stallworth Daniels • ss