SIDEWISE IN TIME: And Other Scientific Adventures.
Chicago: Shasta Publishers, 1950. First edition. His second story collection. SIGNED by the author as Leinster, and with his real name, William F[itzgerald] Jenkins. Leinster is credited with the invention of parallel universe stories, such as this collection's title story, which first appeared in 1934 in Astounding Stories magazine. Hinges..... Item #49173 More