Vol 9, No 3. Contents: 295 • Poisoned Air • [Doctor Bird and Operative Carnes] • novelette by S. P. Meek [as by Capt. S. P. Meek] 314 • The Affair of the Brains • [Hawk Carse • 2] • novella by Harry Bates and D. W. Hall [as by Anthony Gilmore] 358 • The Hammer of Thor • novelette by Charles Willard Diffin 376 • Wandl, the Invader (Part 2 of 4) • [Gregg Haljan • 2] • serial by Ray Cummings 401 • Einstein on the Unified Field Theory • essay by uncredited 402 • Vampires of Space • [John Hanson] • novelette by Sewell Peaslee Wright 416 • New Plan for Signaling Mars • essay by uncredited 417 • The Readers' Corner (Astounding Stories, March 1932) • [The Readers' Corner] • essay by The Editor 419 •  Letter (Astounding Stories, March 1932) • essay by Tom Olog 420 •  Letter (Astounding Stories, March 1932) • essay by Linus Hogenmiller 420 •  Letter (Astounding Stories, March 1932) • essay by Kenneth Sterling 423 •  Letter (Astounding Stories, March 1932) • essay by Gerald Evans 424 •  Letter (Astounding Stories, March 1932) • [Letters: Forrest J. Ackerman] • essay by Forrest J. Ackerman [as by Forrest Ackerman] 425 •  Letter (Astounding Stories, March 1932) • essay by Jack Darrow 426 •  Letter (Astounding Stories, March 1932) • essay by Louis C. Smith. 【 PREVIOUS ISSUE ← March 1932 → NEXT ISSUE 】