Feature

Foot-Mouth Virus Culture Made from Tongue Tissue

Twin-Hulled Ship Plan Patented by Gar Wood

New Machines and Gadgets

Nature Ramblings: Showers and Flowers

Research Recovery Urged

Enlarge Television Field

Books of the Week

Horses Due to Disappear, Evolutionary Curve Shows

Crop Increases Possible

Front Matter

Formula to Improve Neglected Areas

Basic Computations Made More Accurately