Feature

Evolution on New Phase

Dog Star Has Many Claims to Fame

First Glances at New Books

Dr. H. F. Osborn Head of American Association

Volume Information

Fruit Pest Eradicated

Psychologists Told How Monkeys Judge Time

Classics of Science: Discovery of the Serapeum

Trees Contain Air

Astronomers Told of Comet’s Wandering

Nature Ramblings: Geranium

Back Matter