Analog Science Fact Science Fiction-April 1962

Contents

• Three Degrees of Freedom … • [Editorial (Analog)] • essay by John W. Campbell, Jr. [as by John W. Campbell]
• Mercenary • [Joe Mauser] • novella by Mack Reynolds
• Toy Shop • short story by Harry Harrison
• A Slave Is a Slave • [Empire Era] • novella by H. Beam Piper
• Suppressed Invention • [Science Fact (Analog)] • essay by John W. Campbell, Jr. [as by John W. Campbell]
• • essay by uncredited
• The Circuit Riders • short story by R. C. FitzPatrick
• Review of the nonfiction work "African Genesis" by Robert Ardrey • essay by P. Schuyler Miller
• • [The Reference Library] • essay by P. Schuyler Miller
• The Analytical Laboratory: November-December 1961 • [The Analytical Laboratory] • essay by The Editor
• Brass Tacks • [Brass Tacks] • essay by uncredited
• In Times to Come • [In Times to Come (Analog)] • essay by The Editor