Vol 50, No 3. Contents: 6 • Nonlinear Phenomenon • [Editorial (Astounding)] • essay by John W. Campbell, Jr. [as by The Editor] 8 • Last Blast • novelette by Eric Frank Russell 51 • Pax Galactica • novelette by Ralph Williams 73 • The Analytical Laboratory: August 1952 (Astounding, November 1952) • [The Analytical Laboratory] • essay by The Editor 74 • The Things to Come • short story by Gene L. Henderson 82 • Oil for Tomorrow • essay by Wallace West 94 • In Times to Come (Astounding, November 1952) • [In Times to Come (Astounding)] • essay by The Editor 95 • The High Purpose • short story by Algis Budrys 101 • The Currents of Space (Part 2 of 3) • [Trantorian Empire • 3] • serial by Isaac Asimov 152 • The Reference Library: Junior Division (Astounding, November 1952) • [The Reference Library] • essay by P. Schuyler Miller 159 • Brass Tacks & Letters.