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.