Feature

No Two Alike

Possibility of Parrot Fever Vaccination in Mouse Studies

Rust Brothers Change Original Plan to Lease Cotton-Pickers

Combustible Phosphorus Made on Large Scale by New Method

Unethical Not to Patent Medical Discoveries

Front Matter

New Group of Diseases Cured by Sulfanilamide

Italian Tomb Cleared of Being Fraud after 9 Years

Ultra-Speed Movies Capture Vibrations of Vocal Cords

Vibrating Concrete Paving Increases Its Strength

Expedition Ready to Secure Specimens from “Lost World”

Easier to Talk to Driver than for Him to Talk Back