Astounding Stories of Super-Science, January 1931

Vol 5, No. 1. Cover illustration for "The Gate to Xoran" as noted in the Contents (scanned version from archive.org). Library of Congress copyright record shows publication date 1930-11-13 There is a replica edition (etext #30124) available at Project Gutenberg. Scans from microfiche of all the 1931 issues are at The Internet Archive, see web page for link.