5 • Three Can Play • [Editorial (Analog)] • essay by The Editor8 • Collision Course • novelette by William E. Cochrane [as by S. Kye Boult ]40 • Man Off a White Horse • shortstory by Howard L. Myers49 • The Future of Automotive Power Plants • [Science Fact (Analog)] • essay by R. G. Cleveleand73 • Monster in the Waterhole • shortstory by Glenn Lewis Gillette [as by Glenn L. Gillette ]82 • Count Down • novelette by Laurence M. Janifer101 • In Times to Come (Analog, July 1972) • [In Times to Come (Analog)] • essay by uncredited102 • Unfair Trade • shortstory by Patrick Welch108 • The Mercenary • novelette by Jerry Pournelle158 • The Analytical Laboratory: April 1972 (Analog, July 1972) • [The Analytical Laboratory] • essay by uncredited161 • The Reference Library (Analog, July 1972) • [The Reference Library] • essay by P. Schuyler Miller169 • Brass Tacks (Analog, July 1972) • [Brass Tacks] • essay by uncredited
