ANALOG

SCIENCE FICTION-SCIENCE FACT

Volume LXXXII Number 4

December 1968

Contents

Novelettes

The Custodians - James H. Schmitz

The Reluctant Ambassadors - Stanley Schmidt

Pipeline - Joe Poyer

Short Stories

A Learning Experience - Theodore Litwell

The Form Master - Kack Wodhams

Science Fact

Situation Of Some Gravity - Joseph F. Goodavage

Reader's Departments

The Editor's Page

The Analytical Laboratory

In Times To Come

The Reference Library - P. Schuyler Miller

Brass Tacks

Cover - Kelly Freas

Editor - John W. Campbell