Feature

Smallpox Threatens Large Part of Country

In Science Fields

[Photograph]: In an Armor of Spines

First Glances at New Books

Harvest Moon Now Flooding Earth with Excess Light

Tiny Cellulose Balls May Be Smallest Plant Units

Front Matter

Flash Welding Joins Metal Amid Shower of Sparks

Airplanes Enable Geologists to Survey Arctic Copper

Faraday’s Research on Metals Anticipated Modern Steel

The Great Ice Age: “A Classic of Science”

Textiles May Come from Equadorian “Silk Flower”