Notes: Vol. 32, No. 4. The title of this issue is "Amazing Science Fiction", a change from the previously used "Amazing Stories" although the editorial on page 3 still refers to the magazine as "Amazing Stories". Subsequent issues will appear as "Amazing Science Fiction Stories". Cele Goldsmith is credited as a managing editor. Cover art illustrates "The Space Breed". "The Observatory" on page 3 is signed "PWF" at the end and attributed to "The Editor" at the top of the page. "Sargasso of Space" is attributed to "Andrew North", Andre Norton's pseudonym used by Ace Books. "One of Our Cities is Missing" is advertised as a "complete book-length novel" and at 60+ pages of magazine text (10 illustrations take up somewhere between 6 and 8 pages out of the 71 pages total) is close to the threshold between a novel and a novella.