5 • Safety First • [Editorial (Analog)] • essay by Stanley Schmidt10 • The Visitors (Part 1 of 3) • serial by Clifford D. Simak80 • To Jupiter and Beyond • [Science Fact (Analog)] • essay by Walter B. Hendrickson, Jr.97 • Shall We Save The World? • [The Alternate View] • essay by Jerry Pournelle103 • In Times to Come (Analog, October 1979) • [In Times to Come (Analog)] • essay by uncredited104 • The Case of the Disposable Jalopy • novelette by Mack Reynolds140 • Instructions Enclosed • shortstory by W. T. Quick145 • Biolog: Clifford D. Simak • [Biolog] • essay by Jay Kay Klein152 • In Adam's Fall • shortstory by Jayge Carr165 • The Reference Library (Analog, October 1979) • [The Reference Library] • essay by Anthony R. Lewis169 • A Calendar of Upcoming Events (Analog, October 1979) • [Upcoming Events] • essay by Anthony R. Lewis174 • Brass Tacks (Analog, October 1979) • [Brass Tacks] • essay by uncredited
