Feature

Engineers Test Structures without Destroying Them

Synthetic Cortin to Aid Addison’s Disease Victims

World War Trenches Reveal Ancient Battle Lines

Chemists Cure Unpleasant Odors and Imitate Scents

Front Matter

Calamity behind the Ice

Glass for Largest Telescope Disk Begins 10-Month Cooling

In Science Fields

Tadpole Studies Show What Alcohol Does to Nerves

Nordics May Owe Features to Sufficient Iodine in Diet

Desert Earthquake Opens Deep Crack in Ground

Fire Fighting Helped by Calculation of Gases