* 5 · Introduction · Robert Silverberg · in
* 11 · Mellonta Tauta · Edgar Allan Poe · ss Godey’s Lady’s Book Feb, 1849
* 21 · In the Year 2889 · Jules Verne · ss The Forum Feb, 1889
* 32 · Sold to Satan [written Jan 1904] · Mark Twain · ss Europe and Elsewhere, Harper Bros., 1923
* 39 · The New Accelerator · H. G. Wells · ss The Strand Dec ’01
* 49 · Finis · Frank Lillie Pollock · ss Argosy Jun ’06
* 58 · As Easy as A.B.C. · Rudyard Kipling · nv The London Magazine Mar ’12 (+1)
* 78 · Dark Lot of One Saul · M. P. Shiel · nv The Grand Magazine Feb ’12
* 96 · R.U.R. · Karel Capek · pl, 1921
* 144 · The Tissue-Culture King · Julian Huxley · ss The Yale Review Apr ’26; Amazing Aug ’27
* 160 · The Metal Man · Jack Williamson · ss Amazing Dec ’28
* 169 · The Gostak and the Doshes · Miles J. Breuer, M.D. · ss Amazing Mar ’30
* 182 · Alas, All Thinking! · Harry Bates · nv Astounding Jun ’35
* 210 · The Mad Moon · Stanley G. Weinbaum · nv Astounding Dec ’35
* 227 · As Never Was · P. Schuyler Miller · ss Astounding Jan ’44
* 239 · Desertion [City (Websters)] · Clifford D. Simak · ss Astounding Nov ’44
* 249 · The Strange Case of John Kingman · Murray Leinster · ss Astounding May ’48
* 261 · Dreams Are Sacred · Peter Phillips · nv Astounding Sep ’48
* 279 · Misbegotten Missionary · Isaac Asimov · ss Galaxy Nov ’50
* 291 · Dune Roller · Julian May · nv Astounding Dec ’51
* 321 · Warm · Robert Sheckley · ss Galaxy Jun ’53
* 328 · A Bad Day for Sales · Fritz Leiber · ss Galaxy Jul ’53
* 334 · Man of Parts · Horace L. Gold · ss 9 Tales of Space and Time, ed. Raymond J. Healey, Holt, 1954
* 344 · The Man Who Came Early · Poul Anderson · nv F&SF Jun ’56
* 363 · The Burning of the Brain · Cordwainer Smith · ss If Oct ’58
* 371 · The Men Who Murdered Mohammed · Alfred Bester · ss F&SF Oct ’58
* 381 · The Man Who Lost the Sea · Theodore Sturgeon · ss F&SF Oct ’59
* 391 · Goodlife [Berserker] · Fred Saberhagen · nv Worlds of Tomorrow Dec ’63
* 408 · The Sliced-Crosswise Only-On-Tuesday World · Philip José Farmer · ss New Dimensions I, ed. Robert Silverberg, Doubleday, 1971
* 420 · Gehenna · Barry N. Malzberg · ss Galaxy Mar ’71
* 424 · A Meeting with Medusa · Arthur C. Clarke · nv Playboy Dec ’71
* 455 · Painwise · James Tiptree, Jr. · nv F&SF Feb ’72
* 470 · Nobody’s Home · Joanna Russ · ss New Dimensions II, ed. Robert Silverberg, Doubleday, 1972
* 482 · Think Only This of Me · Michael J. Kurland · nv Galaxy Nov ’73
* 499 · Capricorn Games · Robert Silverberg · ss The Far Side of Time, ed. Roger Elwood, Dodd Mead, 1974
* 513 · “The Author of the Acacia Seeds” and Other Extracts from the Journal of the Association of Therolinguistics · Ursula K. Le Guin · ss Fellowship of the Stars, ed. Terry Carr, Simon & Schuster, 1974
* 519 · Doing Lennon · Gregory Benford · ss Analog Apr ’75