Feature

New Mineral Shines like Raven’s Wing

[Photographs]: Science in Review

Genes Declared Impotent as Major Evolutionary Factors

U. S. Wheat Crop to Be Shortest in Generation

Shipworms Proving Destructive to Rope

Idealism Reigning, Says Jeans in New Book

First Glances at New Books

Front Matter

Nature Ramblings: Children of the Cold

Squeezed Bullets Fired at Mile a Second from New Gun

151-Word History of Science Written on Building Wall

Telephone Message between Crickets