Vol 24, No 3. Contents: 6 • Robots • [Editorial (Astounding)] • essay by John W. Campbell, Jr. [as by The Editor] 9 • Gray Lensman (Part 2 of 4) • [Lensman • 4] • serial by Edward E. Smith [as by E. E. Smith, Ph.D.] 52 • "Rotten-Egg Gas" • essay by uncredited 53 • Misfit • [Future History] • novelette by Robert A. Heinlein 67 • Deadly Metal • essay by uncredited 68 • Space War Tactics • essay by Malcolm Jameson 78 • In Times to Come (Astounding, November 1939) • [In Times to Come (Astounding)] • essay by The Editor 78 • The Analytical Laboratory: September 1939 (Astounding, November 1939) • [The Analytical Laboratory] • essay by The Editor 79 • Spacewreck • short story by Oscar A. Boch 92 • "There Ain't No Such!" (Part 1 of 2) • essay by L. Sprague de Camp 107 • This Ship Kills! • short story by L. Ron Hubbard [as by Frederick Engelhardt] 119 • Habit • short story by Lester del Rey 129 • Power Plant • novelette by Harl Vincent 155 • Brass Tacks (Astounding, November 1939) • [Brass Tacks] • essay by The Editor 155 • Letters 160 • Science Discussions • essay by The Editor 160 • Letters. 【 PREVIOUS ISSUE ← November 1939 → NEXT ISSUE 】