Feature

Correspondence Course Mortality Found High

Anti-Plague Commission in Manchuria Made Permanent

Yellow Fever Serum Assures at Least Two-Year Protection

Water Snakes in Zoo Had Amebic Dysentery Epidemic

Engineers to Silence Tires, Mufflers and Power Roar

Woodpeckers Steal Wasps’ Nests to Store Acorns

In Science Fields

Superiority Predicted for Rotating Wing Aircraft

Wingless Rooster Studied at Smithsonian Institution

Ousted German Scholars Join American Faculties

Stellar Looking-Glass Slowly Cooling

Man Made Tools in Dim Age “At Present Unspecified”