This was a paperback original from the days when major publishers were dipping their toes into the science fiction and fantasy fields often with, as here, half-apologetic, half-defensive introductions: "This is not to claim that science fiction today has reached the status of great literature -- certainly, the majority of good science fantasy stories are written primarily to entertain. The point of this anthology is to illustrate that at least some of the body of work broadly classified as fantasy is literate, provocative, and absorbing."
Christopher Cerf was a son of Random House (publisher of Vintage Books) co-founder Bennett Cerf. He never did any other work in SF or fantasy again. The William Styron story here is original to this book.
“The Great Automatic Grammatisator”,
Roald Dahl
(Someone Like You, 1953)
“An Egg a Month from All Over”,
Idris Seabright
(F&SF Oct 1952)
“There Will Come Soft Rains”,
Ray Bradbury
(Colliers May 6 1950)