Includes "The Day To Come" by Don Tracy.

Cover by Virgil Finlay. Includes "The Luck Of Ignatz" by Lester del Rey.

Features "The Book of Death" by Maxwell Grant.

Final issue.

Cover by Matt Fox. Includes "The Dweller In Darkness" by August Derleth.

Includes "The Sky Walker" by Kenneth Robeson.

Cover by Margaret Brundage. Includes "Quest Of The Starstone" by C. L. Moore & Henry Kuttner.

"Flying Coffins of the Damned" by Robert J. Hogan.

Cover by Rogers. Includes "Gray Lensman" Part 2 by E. E. Smith, Ph.D.

Cover by Margaret Brundage. Includes "Come To Me!" by August W. Derleth.

Includes "Traitress' Wages" by Lew Merrill.

Final issue.

Includes "Brand Of The Black Bat" by G. Wayman Jones. Introduction and 1st appearance of The Black Bat.

Cover by Ray Quigley. Includes "Masquerade" by Henry Kuttner.

Includes "Dream-Dust From Mars" by Manly Wade Wellman

Cover design by C.C. Senf. Includes "The White Ship" by H.P. Lovecraft.

Includes "Farewell To Balloon Racing" by Samuel Taylor Moore.

Includes "Wet Magic" by Henry Kuttner.

Includes "Tarzan And The Golden Lion" by Edgar Rice Burroughs.

Cover by John Howitt. Includes "The League Of War Monsters" by Curtis Steele.

Features "Undermost" by Manly Wade Wellman and "Rocket Skin" by Ray Bradbury.

Includes "The Prince Of Evil" by Maxwell Grant.

Includes "The Mind Magnet" by Paul Ernst.

"The Falcon Flies with the Damned" by Robert J. Hogan.

The early issues were published in the format of Macfadden's "true story" magazines. To add versimilitude, the magazine was illustrated with double-exposure photographs and the stories often carried double bylines in the form "by X as told to Y," where X

Cover by John Howitt. Includes "Hosts Of The Flaming Death" by Curtis Steele.

Cover by H. V. Brown. Includes "Giants From Eternity" by Manly Wade Wellman.

Rare.

Includes "The Devil Makes The Law!" by Robert Heinlein.

"The Spook Legion" by Kenneth Robeson.

Cover by John Howitt. Includes "The Yellow Scourge" by Curtis Steele.

Cover by W. H. Silvey. Includes "The Place In The Woods" by August Derleth. Digest size.

Cover by A. R. Tilburne. Includes "Bang! You're Dead" by Ray Bradbury.

Cover by Earle Bergey. Includes "Don't Look Now" by Henry Kuttner.

Rare.

"Bloody Wings for a Sky Hawk" by Robert J. Hogan.

Features "They Died Twice" by Kenneth Robeson.

Includes "The Bridge To Earth" by Robert Moore Williams.

"Wings of the Silent Death" by Robert J. Hogan.

Cover by Rudolph Belarski. Includes "O'Leary's Byno-Blaster" by Arthur Guy Empy.

Winter issue includes "The Magigals Mystery" by Maxwell Grant.

Includes "The Day Of The Damned" by Curtis Steele.

Cover by Rudolph Belarski. Includes Black Bat story "The Man Behind The Murder" by G. Wayman Jones.

Cover by John Howitt. Includes "Cavern Of The Damned" by Curtis Steele.

Features "The Running Skeletons" by Kenneth Robeson.

Continuing from AIR TRAILS.

Includes "The Onslaught From Rigel" by Fletcher Pratt.

Cover by J. Allen St. John. Includes "Bucaneers Of Venus (Part 1)" by Otis Adelbert Kline.

Includes "The Devil's Paymaster" by Maxwell Grant

"Fangs of the Serpent" by Robert J. Hogan.

Cover by Evan Singer. Digest size. Includes "Brenda" by Margaret St. Clair.

Includes "The Synthetic Men of Mars" by Edgar Rice Burroughs

Cover by William Timmins. Includes "The Weapon Shop" by A. E. van Vogt.

Cover by A. R. Tilburne. Includes "Satan's Phonograph" by Robert Bloch.

Includes "The Survivor" by H. P. Lovecraft & August Derleth. Digest size.

Includes "When New York Vanished" by Henry Kuttner.

"The Black Buzzard Flies to Hell" by Robert J. Hogan.

"The Condor Rides With Death" by Robert J. Hogan.

Final issue thus. Continuing as STREET & SMITH'S AIR TRAILS.

Cover by F. Tinsley. Includes "The Lancer Strikes" by George L. Eaton.

Includes "The Room" by L. Ron Hubbard.

Cover by John Howitt. Includes "Citadel Of Hell" by Grant Stockbridge.

"White Wings for the Dead" by Robert J. Hogan.

Cover by Alex Schomburg. Includes "Death Of Iron" by S. S. Held.

"Sky Coffins for Satan" by Robert J. Hogan.

Continued from WONDER STORIES. Includes "Blood of the Moon" by Ray Cummings.

Includes "Land Of The Burning Sea" by Malcolm Jameson.

Includes "The Bat Staffel" by Robert J. Hogan.

Cover by Virgil Finlay. Includes "The Eyes Of The Mummy" by Robert Bloch.

Cover by Walter Popp. Includes "Naked Eye" by Thomas Bell.

Includes "The Case Of The Yellow Mask".

Includes "The Suicide Battalion" by Curtis Steele.

"Death to the Hawks of War" by Robert J. Hogan.

Cover by Earle K. Bergey. Includes "The Portal In The Picture" by Henry Kuttner.

Cover by F. Tinsley. Includes "The Purple Fez" by George L. Eaton.

Includes "Ace Of Destiny" by Ralph Oppenheim.

The Girl From Penang by E. Hoffmann Price

"Raiders of the Red Death" by Robert J. Hogan.

"The Pirate's Ghost" by Kenneth Robeson.

Cover by Boris Dolgov. Includes "Quest Of The Gazolba" by Clark Ashton Smith.

Rare.

"Three Fly With Satan" by Robert J. Hogan.

Includes "The Bride Of Osiris (Part 1)" by Otis Adelbert Kline.

Small digest size format.

Cover by Graves Gladney. Includes "Hermit Of Mars" by Clifford D. Simak.

Final issue.

Includes "The Three Planeteers" by Edmond Hamilton.

Cover by Lee Brown Coye. Includes "The Watcher From The Sky" by August Derleth.

Includes "The Time Machine" by H. G. Wells. Cover by Anderson.

Cover by Margaret Brundage. Includes "Beyond The Black River" by Robert E. Howard.

Cover by Rogers. Includes "Slan" part 1 by A. E. van Vogt.

Cover by F. Tinsley. Includes "The Curse Of The Killer" by George L. Eaton.