Feature

Hope to Vaccinate Farmers in Spotted Fever Area Next Year

Nature Ramblings: Thistle Butterfly

Eugenicists Urged to Drop Cattle Breeding Analogy

Oxygen Disintegrated with Neutron Projectiles

Front Matter

Hydrogen Remakes Petroleum into More Useful Products

Finds Children Do Not Prefer Parent of the Opposite Sex

Airplanes Spray Oil on Mosquito Marshes

[Photograph]: A Great Man of Calakmul

Only One Building Standing in American Pompeii

Goldfish X-Rayed to Show Development of Pigment

New Gypsy Moth Infestation Area Found in Pennsylvania