NEBULA SCIENCE FICTION # 34
September 1958 
Cover: Gerald Quinn
Contents
Novelette
Fourth Factor Brian W.Aldiss
Short Stories
Agent Provocateur H.Philip Stratford
Friction E.R.James
Take Your Partners Robert Presslie
Threshold James Inglis
Four-Part Serial
Wisdom Of The Gods (3) Kenneth Bulmer
Special Features
Look Here Peter Hamilton
Riddle Of The Dinosaurs John Newman
Something To Read Kenneth F. Slater
Scientifilm Previews Forrest J.Ackerman
Fanorama Walter A. Willis