Science fiction: before Christ and after 2001, an introduction / Ray Bradbury -- The gun without a bang / Robert Sheckley -- Crabs take over the island / Anatoly Dnieprov -- All watched over by machines of loving grace / Richard Brautigan -- EPICAC / Kurt Vonnegut, Jr. -- R.U.R. / Karel Capek -- The human factor / David Ely -- The thinking machine / Isaac Asimov -- Misbegotten missionary / Isaac Asimov -- Elegy / Charles Beaumont -- Aesthetics of the moon / Jack Anderson -- Constant reader / Robert Bloch -- Who's there? / Arthur C. Clarke -- We'll never conquer space / Arthur C. Clarke -- The sack / William Morrison -- Mariana / Fritz Leiber -- I always do what Teddy says / Harry Harrison -- The man who could work miracles / H.G. Wells -- Echoes of the mind / Arthur Koestler -- The reluctant orchid / Arthur C. Clarke -- Founding father / Isaac Asimov -- The wound / Howard Fast -- The sound machine / Roald Dahl -- Love among the cabbages / Peter Tompkins and Christopher Bird -- Puppet show / Fredric Brown -- Random sample / T.P. Caravan -- On the wheel / Damon Knight -- Orbiter 5 shows how Earth looks from the moon / May Swenson -- The king of the beasts / Philip Jose Farmer -- UFO detective solves 'em all, well, almost / Philip J. Hilts -- The good provider / Marion Gross -- A sound of thunder / Ray Bradbury -- Who's cribbing? / Jack Lewis -- The third level / Jack Finney -- Speed / Josephine Miles -- The inn outside the world / Edmond Hamilton -- On the relativity of time / Wolfgang Pauli -- Relativity wins again -- A matter of overtime -- There will come soft rains / Ray Bradbury -- The forgotten enemy / Arthur C. Clarke -- Earthmen bearing gifts / Fredric Brown -- The lfth of Oofth / Walter Tevis -- Electronic tape found in a bottle / Olga Cabral -- Brace yourself for another ice age / Douglas Colligan -- The census takers / Frederik Pohl -- Disappearing act / Alfred Bester -- Bulletin / Shirley Jackson -- Autofac / Philip K. Dick -- Toward the space age / William Stafford -- Spaceship Earth / R. Buckminster Fuller -- Biographies of authors -- Science-fiction awards.