Amazing Stories Quarterly was a U.S. science fiction pulp magazine published from 1928 to 1934. It was launched by Hugo Gernsback as a companion to his Amazing Stories, the first science fiction magazine, which had begun publishing in April 1926. Amazing Stories had been successful enough for Gernsback to try a single issue of Amazing Stories Annual in 1927, which had sold well, and he decided to follow it up with a quarterly magazine. The first issue of Amazing Stories Quarterly was dated Winter 1928 and carried a reprint of H.G. Wells’ When the Sleeper Wakes. Gernsback’s policy of running a novel in each issue was popular with his readership, though the choice of Wells’ novel was less so. Over the next five issues only one more reprint appeared: Gernsback’s own novel Ralph 124C 41+, in the Winter 1929 issue. Gernsback went bankrupt in early 1929, and lost control of both Amazing Stories and Amazing Stories Quarterly; his assistant, T. O’Conor Sloane, took over as editor. The magazine began to run into financial difficulties in 1932, and the schedule became irregular; the last issue was dated Fall 1934.

Authors whose work appeared in Amazing Stories Quarterly include Stanton A. Coblentz, Miles J. Breuer, A. Hyatt Verrill, and Jack Williamson. Critical opinions differ on the quality of the fiction Gernsback and Sloane printed: Brian Stableford regards several of the novels as being important early science fiction, but Everett Bleiler comments that few of the stories were of acceptable quality. Milton Wolf and Mike Ashley are more positive in their assessment; they consider the work Sloane published in the early 1930s to be some of the best in the new genre.

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