Astounding Science Fiction September 1949 (Volume 44, Number 1)
Illustrations by Ed Cartier, Hicks, Paul Orban. Cover by Paul Orban (for "The Double-Dyed Villians.")

Novelettes: "The Double-Dyed Villians" by Poul Anderson
"Special Jobbery" by H. B. Fyfe ("Bureau of Slick Tricks" series.)

Story: "Hide and Seek" by Arthur C. Clarke.

Serial: "The Queen of Zamba" (Conclusion) by L. Sprague de Camp (part of the "Viagens" series.)

Article: "Cybernetics" by E. L. Locke.

Special Feature: "Progress Report" by John H. Pomeroy [a "Thiotimoline" piece.]

John W. Campbell's editorial is "Narrow Limits"; Book reviews by P. Schuyler Miller.