Feature

Front Matter

Trees Alter the Landscape Making Stable Hills of Dunes

Digestive Ferments Used in Treating Abdominal Adhesions

New X-Ray Device Shows up Human Interior in Relief

Glaciers Caused Geological Moving Days

Nature Ramblings: Beaver’s Little Cousin

Heredity in Mental Disease Urged for Study in Country

Ribbon Microphone Keeps Noises out of Sound Movies

White Men Copy Indians Who First Copied Them

Discoveries Tell of Life in Arctic Thousand Years Ago

First Glances at New Books

Ultra-Modern Marriage Laws Governed Ancient Egyptians