July 1962 issue. Cover by Lloyd Birmingham illustrating "A Trace of Memory" (serial, part 1 of 3) by Keith Laumer; rear cover by Virgil Finlay for "A Prison Make" by William W. Stuart. Other stories:<br/><br/> "The Chamber of Life" (reprint, introduced by Sam Moskowitz) by G. Peyton Wertenbaker; "The Blonde from Barsoom" by Robert F. Young; "The Last Class" by Raymond W. Banks.<br/><br/> FEATURES: "The Three Requirements of Life in the Solar System" by Ben Bova; ". . .Or So You Say. . ." (letters); Editorial; "Through Time and Space with Benedict Breadfruit: V" by Grandall Barrelton; "The Spectroscope." Illustrated by Birmingham, Summers, Finlay, Adkins, and Briggs.