What is POSAT?

By PHYLLIS STERLING SMITH

Illustrated by ED ALEXANDER

[Transcriber's Note: This etext was produced from
Galaxy Science Fiction September 1951.
Extensive research did not uncover any evidence that
the U.S. copyright on this publication was renewed.]


Of course coming events cast their shadows
before, but this shadow was 400 years long!


The following advertisement appeared in the July 1953 issue of several magazines:

MASTERY OF ALL KNOWLEDGE CAN BE YOURS!