Vol 26, No 1. Contents: 5 • Full Cycle • [Editorial (Astounding)] • essay by John W. Campbell, Jr. [as by The Editor] 9 • Slan (Part 1 of 4) • [Slan • 1] • serial by A. E. van Vogt 41 • Universes for Lenses • essay by R. S. Richardson 50 • In Times to Come (Astounding, September 1940) • [In Times to Come (Astounding)] • essay by The Editor 50 • The Analytical Laboratory: July 1940 (Astounding, September 1940) • [The Analytical Laboratory] • essay by The Editor 51 • Blowups Happen • [Future History] • novelette by Robert A. Heinlein 86 • Quietus • short story by Ross Rocklynne 98 • The Kilkenny Cats • [Kilkenny Cats] • novelette by L. Ron Hubbard [as by Kurt von Rachen] 117 • Homo Sol • [Homo Sol • 1] • short story by Isaac Asimov 132 • The Coronaviser • essay by Stanley R. Short 143 • Emergency • short story by Vic Phillips 156 • Brass Tacks (Astounding, September 1940) • [Brass Tacks] • essay by The Editor 158 •  Letter (Astounding, September 1940) • [Letters: Willy Ley] • essay by Willy Ley 160 • Science Discussions (Astounding, September 1940) • essay by The Editor. 【 PREVIOUS ISSUE ← September 1940 → NEXT ISSUE 】