Contents (view Concise Listing)

• xi • Introduction (Men and Machines) • essay by Robert Silverberg
• 1 • Counter Foil • (1964) • novelette by George O. Smith
• 31 • A Bad Day for Sales • (1953) • short story by Fritz Leiber
• 40 • Without a Thought • [Berserker (Fred Saberhagen)] • (1963) • short story by Fred Saberhagen (variant of Fortress Ship)
• 54 • Solar Plexus • (1941) • short story by James Blish
• 70 • The Macauley Circuit • (1956) • short story by Robert Silverberg
• 83 • But Who Can Replace a Man? • (1958) • short story by Brian W. Aldiss (variant of Who Can Replace a Man?)
• 95 • Instinct • (1952) • short story by Lester del Rey
• 113 • The Twonky • (1942) • short story by Henry Kuttner and C. L. Moore [as by Lewis Padgett]
• 141 • The Hunting Lodge • (1954) • novelette by Randall Garrett
• 184 • With Folded Hands • [Humanoids] • (1948) • novelette by Jack Williamson (variant of With Folded Hands ... 1947)