Feature

Better Microphones and Loud Speakers Sought

Blood Tests Relate American Indians to Siberian Tribes

Winter Drought Causes Worry in Wheat Belt

Mechanophobia, Merely a Futile Reaction to Depression

The Turbulent Sex

Earthquake Problems Automatically Solved

Experiments with Big Guns Give New Sound Speed Value

Bureau of Standards Urges Use of Informing Labels

Study of Pituitary May Yield Thyroid Disease Treatment

Nature Ramblings: A Lesson from Arachne

Czar’s Books, Rare Costumes Come to Philadelphia Museum

Zinc-Acid Reaction Yields Heavy Hydrogen