The Magazine of Fantasy and Science Fiction: June 1964 (Volume 26, Number 6)
Cover by Ed Emshwiller (for "The Triumph of Pegasus.")

Stories: "The Triumph of Pegasus" by F. A. Javor (novelet)
"The Master of Altamira" by Robert Barr
"The Peace-Watchers" by Bryce Walton
"Trade-In" by Jack Sharkey
"Time Bomb" (verse) by Arthur Porges
"Cynosure" by Kit Reed
"The Third Bubble" by G. C. Edmondson
"The Search" by Bruce Simonds
"The Thing from Outer Space and the Prairie Dogs" by Gahan Wilson (!) (short-short)
"Forwarding Service" by Willard Marsh
"The Unknown Law" by Avram Davidson (short novelet).

Science: "Medical Radiotracers" by Theodore L. Thomas
"The Heavenly Zoo" by Isaac Asimov.

Joseph W. Ferman is Publisher, Avram Davidson is Executive Editor, Edward L. Ferman is Managing Editor, and Ted White is assistant Editor. Book Reviews by Avram Davidson.