Contents (view Concise Listing)

• 9 • Introduction (Analog Anthology #2) • (1981) • essay by Stanley Schmidt
• 11 • Old Faithful • [Old Faithful • 1] • (1934) • novelette by Raymond Z. Gallun
• 41 • Helen O'Loy • (1938) • short story by Lester del Rey
• 50 • Requiem • [D. D. Harriman] • (1940) • short story by Robert A. Heinlein
• 64 • Some Curious Effects of Time Travel • [Probability Zero] • (1942) • short story by L. Sprague de Camp
• 66 • The Cold Equations • [Cold Equations (Godwin)] • (1954) • novelette by Tom Godwin
• 86 • Plus X • (1956) • novella by Eric Frank Russell
• 130 • The Big Front Yard • (1958) • novella by Clifford D. Simak
• 171 • "What Do You Mean ... Human?" • [Editorial (Astounding)] • (1959) • essay by John W. Campbell, Jr.
• 177 • Home Is the Hangman • [Nemo] • (1975) • novella by Roger Zelazny
• 225 • Eyes of Amber • (1977) • novelette by Joan D. Vinge
• 254 • Ender's Game • [Ender Wiggin] • (1977) • novelette by Orson Scott Card