Feature

Stroboscopic Camera Takes One Picture per Flash

Smaller Loaves and Cakes from Rust-Diseased Wheat

First Glances at New Books

Oxygen Disintegrated with Neutron Projectiles

Birth Control Effects Negative, Dr. Osborn Tells Eugenists

Science Studies the Politician

The Eclipse of 1878: “A Classic of Science”

Silica Black Is New Product of Many Possible Uses

Nature Ramblings: Thistle Butterfly

Front Matter

Eugenicists Urged to Drop Cattle Breeding Analogy

Anti-Oxidizing Substance Found for Anti-Knock Gas