The Best from Fantasy and Science Fiction: Eighth Series, edited by Anthony Boucher. Hardcover edtion & SFBC reprint are 1959. Stories are from 1957-1959.

(Introduction by Anthony Boucher)
"Ministering Angels" by C. S. Lewis
"Backwardness" by Poul Anderson
"The Wait" by Kit Reed
"The Up-To-Date Sorcerer" by Isaac Asimov
"A Desk Full of Girls" by Fritz Leiber
"Eripmav" by Damon Knight
"Poor Little Warrior!" by Brian W. Aldiss
"The Omen" by Shirley Jackson
"Gil Bralter" by Jules Verne
"The Grantha Sighting" by Avram Davidson
"Theory of Rocketry" by C. M. Kornbluth
"A New Lo!" by Ron Goulart
"Gorilla Suit" by John Shepley
"Captivity" by Zenna Henderson
"The Men Who Murdered Mohammed" by Alfred Bester