Astounding Science Fiction August 1957 (Volume 59, Number 6)
Illustrations by Kelly Freas, H. R. van Dongen. Cover by Kelly Freas (for "Brake")

Novelettes: "Brake" by Poul Anderson ("Planetary Engineers" series)
"The Stainless Steel Rat" by Harrison (begins series; formed beginning of novel of same title.)

Short Novel: "Med Service" by Murray Leinster ("Med Service/Calhoun" series - book title was The Mutant Weapon.)

Stories: "Love Story" by Eric Frank Russell
"Beast of Prey" by Jay Williams.

Article: "Bring Back Those Mustard Plants!" by Paul M. Leavy, Jr.

John W. Campbell's editorial is "That Shortage of Scientists"; Book reviews by P. Schuyler Miller.