Feature

Nature Ramblings: Ancestry in Doubt

Proper Building Solves Danger from Earthquake

Natural Emulsifiers Safe

Ultraviolet Spots Cancer with Reddish Light

Erratum: New Machines and Gadgets

Erratum: Three-Dimensional Movies

Obesity Is Now No. 1 U. S. Nutritional Problem

Seek P.T.C. Sweet-Tasters

Bright Planets in West

Front Matter

Erratum: In Science Fields: Vast Projects Reclaim Deserts in Soviet Russia

Nature Ramblings: Buy British!