NEBULA SCIENCE FICTION # 11
December 1954 
Cover: James Rattigan
Contents
Novel
Operation Mars E.C.Tubb
Novelette
The Yupe Charles Eric Maine
Short Stories
The Tresspassers Bob Shaw
Boomerang Eric Frank Russell
Ujutjo Harry Warner Jr
Talent John Christopher
A World In Exile Cyril Myrescough
Special Features
Look Here Peter Hamilton
Something To Read Kenneth F. Slater
Scientifilm Previews Forrest J. Ackerman
The Electric Fan Walter A. Willis
Research Survey Results J.Stuart Mackenzie
Guided Missives The Readers ( James English, J.Parry & Alan Hunter).