THE MENTAL MARVEL. Chicago: A. C. McClurg & Co., 1930. Octavo, pp. [1-10] 1-323 [324-326: blank] [note: last leaf is a blank], original decorated green cloth, front panel stamped in black and ruled in blind, spine panel stamped in black. First edition. Humorous fantasy (coded "biological science fiction" in 1978 Bleiler checklist) about a mental superman who claims he can outwit any opponent in the boxing ring, and attract any woman outside of it. "One of the better pulp writers." - Bleiler, Science-Fiction: The Early Years, p. 465. MacIsaac was a Boston newspaperman who went to Harvard, then went on to a career in writing fiction and screenplays. Clareson, Science Fiction in America, 1870s-1930s 527. Clute and Nicholls (eds), The Encyclopedia of Science Fiction (1993), p. 757. Bleiler (1978), p. 130. Not in Reginald (1979; 1992). Hubin (1994), p. 532. Blank page  bears the ownership note, "Yessir: I belong to Sherman." Sherman also penned his initials on the bottom edge of the text block, rather discreetly, we're happy to report. There are several small adhesions on paste-downs where the jacket was once lightly glued, otherwise, this is a bright, near fine copy in a very good four-color pictorial dust jacket with a touch of fading to spine panel, small damp stain at bottom edge of spine panel, minor dust soiling to rear panel, and several abrasions to rear panel affecting a few words of the blurb. (#75764).
No statement of printing. McClurg acorn monogram on copyright page.