Vol 25, No 1. Contents: 6 • Not-So-Dangerous Experiment • [Editorial (Astounding)] • essay by John W. Campbell, Jr. [as by The Editor] 9 • Cold • novelette by Nat Schachner 36 • In the Good Old Summertime • short story by P. Schuyler Miller 49 • In Times to Come (Astounding, March 1940) • [In Times to Come (Astounding)] • essay by The Editor 49 • The Analytical Laboratory: January 1940 (Astounding, March 1940) • [The Analytical Laboratory] • essay by The Editor 50 • The Emancipated • [Johnny Black] • novelette by L. Sprague de Camp 68 • Fuel for the Future • essay by Jack Hatcher 84 • A Chapter from the Beginning • short story by A. M. Phillips 99 • The Dwindling Sphere • short story by Willard E. Hawkins 112 • Atomic Ringmaster • essay by John W. Campbell, Jr. [as by Arthur McCann] 117 • If This Goes On ... (Part 2 of 2) • [Future History] • serial by Robert A. Heinlein (book publication as "If This Goes On —"?) 152 • Brass Tacks (Astounding, March 1940) • [Brass Tacks] • essay by The Editor 152 • Letters 159 • Science Discussions (Astounding, March 1940) • essay by The Editor 159 • Letter (Astounding, March 1940) • [Letters: John W. Campbell, Jr.] • essay by John W. Campbell, Jr. [as by Arthur McCann]. 【 PREVIOUS ISSUE ← March 1940 → NEXT ISSUE 】