5 • In Memoriam (Martin Luther King) • [Editorial (Analog)] • essay by John W. Campbell, Jr. [as by John W. Campbell ] 8 • The Baalim Problem • novelette by Bruce Daniels 27 • The Fuglemen of Recall • shortstory by Jack Wodhams 47 • In Times to Come (Analog, August 1968) • [In Times to Come (Analog)] • essay by The Editor 48 • How the Soviets Did it in Space • [Science Fact (Analog)] • essay by G. Harry Stine 72 • Appointment on Prila • [A.E.S.O.P.] • shortstory by Bob Shaw 85 • The Analytical Laboratory: May 1968 (Analog, August 1968) • [The Analytical Laboratory] • essay by uncredited 86 • Satan's World (Part 4 of 4) • [Nicholas Van Rijn] • serial by Poul Anderson 138 • Specialty • novelette by Joe Poyer 161 • The Reference Library: Appraisals (Analog, August 1968) • [The Reference Library] • essay by P. Schuyler Miller 169 • Brass Tacks (Analog, August 1968) • [Brass Tacks] • essay by uncredited