New York: Street & Smith Publications, Inc., 1938. Octavo, single issue, cover painting by Howard V. Brown, pictorial wrappers. Pulp magazine. The first published story by Lester Del Rey, "The Faithful." Tymm and Ashley, Science Fiction, Fantasy, and Weird Fiction Magazines, pp. 60-103.

New York: Street & Smith Publications, Inc., 1942. Octavo, single issue cover painting by Hubert Rogers, pictorial wrappers. Pulp magazine. Bedsheet format. Includes Anson MacDonald (Robert A. Heinlein) "Beyond This Horizon," A.E. Van Vogt, L. Ron Hubbard, Colin Keith (Malcolm Jameson) and others. In this issue the first appearance of the Probability Zero column appears, it includes a short piece by George E. Dale which is a pseudonym for Isaac Asimov. Tymm and Ashley, Science Fiction, Fantasy, and Weird Fiction Magazines, pp. 60-103.

New York: Street & Smith Publications, Inc., 1939. Octavo, single issue, cover painting by Charles Schneeman, pictorial wrappers. Pulp magazine. Includes Part 3 of "The Cosmic Engineers" by Clifford Simak, part 1 of "One Against the Legion" by Jack Williamson. Tymm and Ashley, Science Fiction, Fantasy, and Weird Fiction Magazines, pp. 60-103.

New York: Street & Smith Publications, Inc., 1939. Octavo, single issue, cover painting by Charles Schneeman, pictorial wrappers. Pulp magazine. Includes Part 3 of "The Cosmic Engineers" by Clifford Simak, part 1 of "One Against the Legion" by Jack Williamson. Tymm and Ashley, Science Fiction, Fantasy, and Weird Fiction Magazines, pp. 60-103.

New York: Street & Smith Publications, Inc., 1940. Octavo, single issue cover painting by Hubert Rogers, pictorial wrappers. Pulp magazine. Part 1 of "Final Blackout" by L. Ron Hubbard. Also stories by A.E. van Vogt, Lester Del Rey, Leigh Brackett. Tymm and Ashley, Science Fiction, Fantasy, and Weird Fiction Magazines, pp. 60-103.

New York: Street & Smith Publications, Inc., 1941. Octavo, single issue cover painting by Hubert Rogers, pictorial wrappers. Pulp magazine. Includes part 2 of "Methuselah's Children" by Robert A. Heinlein. Also Theodore Sturgeon and Jack Williamson. Tymm and Ashley, Science Fiction, Fantasy, and Weird Fiction Magazines, pp. 60-103.

New York: Street & Smith Publications, Inc., 1942. Octavo, single issue cover painting by Hubert Rogers, pictorial wrappers. Pulp magazine. Bedsheet format. Includes Anson MacDonald (Robert Heinlein), Hal Clement, Lewis Padgett and others. Tymm and Ashley, Science Fiction, Fantasy, and Weird Fiction Magazines, pp. 60-103.

New York: Street & Smith Publications, Inc., 1943. Octavo, single issue cover by William Timmins, pictorial wrappers. Pulp magazine. Fiction by C.L. Moore, Fritz Leiber, Anthony Boucher, Lewis Padgett and others. Tymm and Ashley, Science Fiction, Fantasy, and Weird Fiction Magazines, pp. 60-103.

New York: Street & Smith Publications, Inc., 1940. Octavo, single issue cover painting by Hubert Rogers, pictorial wrappers. Pulp magazine. Fiction by Lester Del Rey, A.E. van Vogt, Clifford Simak and others. Tymm and Ashley, Science Fiction, Fantasy, and Weird Fiction Magazines, pp. 60-103.

New York: Street & Smith Publications, Inc., 1940. Octavo, single issue cover painting by Hubert Rogers, pictorial wrappers. Pulp magazine. Fiction by Lester Del Rey, A.E. van Vogt, Clifford Simak and others. Tymm and Ashley, Science Fiction, Fantasy, and Weird Fiction Magazines, pp. 60-103.

New York: Street & Smith Publications, Inc., 1938. Octavo, single issue, cover painting by Charles Schneeman, pictorial wrappers. Pulp magazine. First issue with the logo change with Astounding in block letters across the top of the magazine. Stories by L. Sprague De Camp, Manly Wade Wellman, Edmond Hamilton, Lester Del Rey and others. Tymm and Ashley, Science Fiction, Fantasy, and Weird Fiction Magazines, pp. 60-103.

New York: Street & Smith Publications, Inc., 1939. Octavo, single issue, cover painting by Gilmore, pictorial wrappers. Pulp magazine. Includes part 3 of "Gray Lensman" and "Discord in Scarlet" by A.E. van Vogt - a sequel to "The Black Destroyer." Tymm and Ashley, Science Fiction, Fantasy, and Weird Fiction Magazines, pp. 60-103.

New York: Street & Smith Publications, Inc., 1939. Octavo, single issue, cover painting by Gilmore, pictorial wrappers. Pulp magazine. Includes part 3 of "Gray Lensman" and "Discord in Scarlet" by A.E. van Vogt - a sequel to "The Black Destroyer." Tymm and Ashley, Science Fiction, Fantasy, and Weird Fiction Magazines, pp. 60-103.