Feature

U. S. May Lose Cotton Supremacy

Diet Increases Tropical Disease

Summarizes Biological Literature

Rats Harbor Typhus

Sky Mappers of the Alaska Aerial Survey

New Baking Powder Leaves No Residue

Hinged Wing Marks Contest Airplane

Helium Heart’s Affinity

Child Habit Clinics

Diet Aids Breeding

Moose on Increase in Sweden

Plants Show Nerve-like Currents