4 • The Pot of Message • [Editorial (Analog)] • essay by John W. Campbell, Jr. [as by John W. Campbell ]9 • Per Strategem • novelette by Rob Chilson [as by Robert Chilson ]52 • Beau Farcson Regrets • shortstory by Jack Wodhams65 • Rare Events • shortstory by D. A. L. Hughes84 • Ark IV • shortstory by Jackson Burrows95 • In Times to Come (Analog, July 1970) • [In Times to Come (Analog)] • essay by The Editor97 • Zero Resistance • [Science Fact (Analog)] • essay by Walter C. Walterscheid120 • "Some Like It Hot, Some Like It Cold ..." • essay by The Editor122 • Star Light (Part 2 of 4) • [Mesklin] • serial by Hal Clement162 • The Reference Library: Two by Boyd (Analog, July 1970) • [The Reference Library] • essay by P. Schuyler Miller168 • Brass Tacks (Analog, July 1970) • [Brass Tacks] • essay by uncredited
