Gerald G. Swan published two magazines in 1943 entitled The Moon Conquerors and Into the Fourth Dimension. These were the titles of the lead stories but each was, in fact, a nearly complete reprint of an issue of the US Science Fiction Quarterly.

The covers were extremely crude imitations by unknown artists of the corresponding covers of the original magazines, printed in monochrome blue, presumably a war-time austerity measure.

Issues & Index Sources:  Feb-1952 – Aug-1955:	Science Fiction Index
	Index to British Science Fiction Magazines

Publishers:   Thorpe & Porter

Fanzine which started in July 1953 under the name Psychotic as which it ran for 19 issues followed by 1 (some sources say 3) under the title Science Fiction Review before folding in 1955. It was relaunched in 1967 as Psychotic #21, as which it ran for 7 issues before changing its name (again) to Science Fiction Review in November 1968.

After 16 issues it was relaunched in 1972 as Richard E. Geis, which, after 3 issues, changed its name to The Alien Critic as which it ran for 8 issues before changing its name back to Science Fiction Review again and running for a further 50 issues before folding in 1986.

It was relaunched by a different editor in 1990 but only lasted for 10 issues before folding for good in May 1992.

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Fanzine.

A series of booklets distributed by mail order at 10c each or 6 for 50c. They were issued in three groups of six, each set first advertised in the November 1929, January 1930 and June 1932 issues of Wonder Stories, respectively.

Science Fiction Trails is the magazine where science fiction meets the Wild West—Head on.

Non-fiction fanzine that included a couple of novel excerpts.

Promotional newsletter for Gnome Press that included some fiction.

A series of annual anthologies derived from the old "Thrilling" group of SF magazines. The preceding volumes were titled Wonder Stories, Treasury of Great Science Fiction and Great Science Fiction and were separately numbered. There were no further volumes after this series ended.

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Merged with Air Wonder Stories to form Wonder Stories.

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#merges with Air Wonder Stories

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"For grades 6-10 brings science to life with fascinating feature articles and hands-on activities that reinforce science concepts and help students build test-taking and critical-thinking skills."

Published some reprint fiction by Murray Leinster during the late 1950s although generally it does not publish fiction.

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Fanzine.

A hektoed fanzine which featured fiction in a graphic format along with short articles, comments and short stories, including one by Robert W. Lowndes.

Amateur magazine.

A saddle-stitched, digest-size magazine of standard crime-adventure fare, Scientific Detective belied its name and had several fact articles and an occasional quiz about its fiction, which appears to be primarily reprint material. It's commencement is not known; the earliest issue noted has been March 1945, labeled volume 5, number 1; the latest issue inspected was dated May 1948.

In the Nov-1947 issue, E. Robert Rubin is listed as owner and publisher, Max Herzberg is editor and George Sturm is managing editor. In Nov-1946, Rubin was owner and publisher but Sturm was editor and Herzberg was managing editor.

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