Chicago: Ziff-Davis Publishing Company, 1941. Octavo, single issue, cover by J. Allen St. John, pictorial wrappers. Pulp magazine. Feature story, a John Carter of Mars adventure, "John Carter and the Giant of Mars" by Edgar Rice Burroughs. Attributed to Edgar Rice Burroughs but actually written by John Coleman Burroughs. A shorter version with a different ending was published as a Better Little Book in 1940 as "John Carter of Mars." [Reference: Tymm and Ashley, Science Fiction, Fantasy, and Weird Fiction Magazines, pp. 14-49].