If (UK) [No. 18, September 1962] ed. Frederik Pohl (2/-, 132pp, digest, cover: The Snowbank Orbit by Wenzel from  If September 1962)
     
    Identical to the US issue of the same date apart for the issue number and price on the cover.
    
      - 5 · The Worlds of Science · Frederik Pohl · rc If September 1962
 
      - _5 · The Human Brain, John Pfieffer; Pyramid · Frederik Pohl · br If September 1962 [Ref. John Pfieffer]
 
      - _5-6 · Maya, Charles Gallenkamp; Pyramid · Frederik Pohl · br If September 1962 [Ref. Charles Gallenkamp]
 
      - _6 · Nine Planets, Alan E. Nourse; Pyramid · Frederik Pohl · br If September 1962 [Ref. Alan E. Nourse]
 
      - _6 · Living Earth, Peter Farb; Pyramid · Frederik Pohl · br If September 1962 [Ref. Peter Farb]
 
      - _6-7 · Chemistry Creates a New World, Bernard Jaffe; Pyramid · Frederik Pohl · br If September 1962 [Ref. Bernard Jaffe]
 
      - _7 · The Road to Man, Herbert Wendt; Pyramid · Frederik Pohl · br If September 1962 [Ref. Herbert Wendt]
 
      - 8 · The Snowbank Orbit · Fritz Leiber · nv If September 1962; illustrated by Mack
 
      - 24 · One Million Four Hundred Ninety Two Thousand Six Hundred Thirty Three Marlon Brandos · Vance Aandahl · ss If September 1962; given as “1,492,633 Marlon Brandos” in the Table of Contents and on the footer of odd-numbered pages of the story.
 
      - 28 · The Winning of the Moon · Kris Neville · ss If September 1962; illustrated by Burns
 
      - 46 · And Then There Was Peace · Gordon R. Dickson · ss If September 1962
 
      - 49 · The Big Headache · Jim Harmon · ss If September 1962; illustrated by Dyas
 
      - 65 · Transient · William Harris · ss If September 1962
 
      - 70 · Once Around Arcturus · Joseph Green · nv If September 1962; illustrated by Gaughan
 
      - 92 · You and Nostradamus—Continued · [uncredited] · ms If September 1962
 
      - 94 · World in a Mirror · Albert Teichner · ss If September 1962
 
      - 101 · Just Westing · Theodore Sturgeon · ar If September 1962; given as “‘Just Westing’” in the Table of Contents.
 
      - 107 · Cultural Exchange [Jame Retief] · Keith Laumer · ss If September 1962; illustrated by R. D. Francis
 
      - 125 · Hue and Cry · The Readers · lc If September 1962
 
      - _125 · [letter] · “P. C.” · lt If September 1962
 
      - _126 · [letter from Anacortes, WA] · Pat Scott · lt If September 1962
 
      - _127 · [letter from New York City] · Roger Cox · lt If September 1962
 
      - _127 · [letter from Chula Vista, CA] · Dale E. Randles, Jr. · lt If September 1962
 
      - _127 · [letter from Springfield, TN] · Jimmy Porter · lt If September 1962
 
      - _127 · [letter from Hutchinson, KS] · Douglas Mackey · lt If September 1962
 
      - _128 · [letter from Bangor, ME] · Clayton Hamilton · lt If September 1962
 
      - _129 · [letter from North Ridgeville, OH] · B. Joseph Fekete, Jr. · lt If September 1962
 
      - _130 · [letter from Rochelle, IL] · J. R. Parks · lt If September 1962
 
     
   
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