Contents (view Concise Listing)

• vii • Introduction (The Mirror of Infinity) • (1970) • essay by Robert Silverberg
• 1 • Foreword to "The Star" • (1970) • essay by Jack Williamson
• 9 • The Star • (1897) • short story by H. G. Wells
• 21 • Foreword to "Twilight" • (1970) • essay by Algis Budrys
• 27 • Twilight • [Twilight • 1] • (1934) • novelette by John W. Campbell, Jr.
• 49 • Foreword to "Nightfall" • (1970) • essay by Harry Harrison
• 55 • Nightfall • (1941) • novelette by Isaac Asimov
• 93 • Foreword to "Private Eye" • (1970) • essay by James Blish
• 99 • Private Eye • (1949) • novelette by Henry Kuttner and C. L. Moore [as by Lewis Padgett]
• 129 • Foreword to "The Sentinel" • (1970) • essay by Thomas D. Clareson
• 135 • The Sentinel • [A Space Odyssey] • (1951) • short story by Arthur C. Clarke
• 145 • Foreword to "Specialist" • (1970) • essay by Robert Conquest
• 151 • Specialist • (1953) • short story by Robert Sheckley
• 167 • Foreword to "Common Time" • (1957) • essay by Damon Knight
• 173 • Common Time • (1953) • short story by James Blish
• 195 • Foreword to "The Game of Rat and Dragon" • (1970) • essay by Kingsley Amis
• 201 • The Game of Rat and Dragon • [The Instrumentality of Mankind] • (1955) • short story by Cordwainer Smith
• 217 • Foreword to '"All You Zombies—"' • (1970) • essay by Alexei Panshin
• 223 • "All You Zombies ..." • (1959) • short story by Robert A. Heinlein
• 237 • Foreword to "The Subliminal Man" • (1970) • essay by H. Bruce Franklin
• 243 • The Subliminal Man • (1963) • short story by J. G. Ballard
• 263 • Foreword to "I Have No Mouth, and I Must Scream" • (1970) • essay by Willis E. McNelly
• 269 • I Have No Mouth, and I Must Scream • (1967) • short story by Harlan Ellison
• 285 • Foreword to "The Heat Death of the Universe" • (1970) • essay by Brian W. Aldiss
• 293 • The Heat Death of the Universe • (1967) • short story by Pamela Zoline
• 309 • Foreword to "The Library of Babel" • (1970) • essay by Ivor A. Rogers [as by Ivor Rogers]
• 315 • The Library of Babel • short story by Jorge Luis Borges (trans. of La biblioteca de Babel 1941)
• 323 • A Bibliography: The Critical Literature of S.F. • (1970) • essay by uncredited