Feature

Museum Publishes Roman House Model

Pithecanthropus Had ‘Modern’ Contemporary, Briton Claims

New Rayon Fiber to Retain Strength Even When Wet

First Glances at New Books

Particles Get Greatest Energy from Whirligig Atomic-Gun

Girls Sleep More Soundly than Boys of Same Age

Front Matter

Germs’ Conquests Aided by Strange Spreading Factor

Eugenicists Approve New German Law

Mayan History Revised by Mexican Archaeologist

Weight Loss Found to Be Clue to Personality Type

Psychodietetics Suggested for Mind-Dietary Science