GALAXY Science Fiction: August 1956 (Volume 12, Number 4)
Illustrations by Dick Francis, Wes, Ed Emshwiler, Jack Gaughan, Cavat. Cover by Virgil Finlay: "September Morn, 1999 A.D."

Novelets: "Time In Advance" by William Tenn
"Early Model" by Robert Sheckley
"The Claustrophile" by Theodore Sturgeon.

Stories: "Honorable Opponent" by Clifford D. Simak
"This Way to the Regress" by Damon Knight
"The Genius Heap" by James Blish.

Science: "For Your Information: The Demotion of Pluto" by Willy Ley

Edited by H. L. Gold. Book reviews by Floyd C. Gale.