Feature

Insects Better than Rats for Use in Vitamin Tests

Nature Ramblings: Winter Rosettes

Special Capillaries Protect Extremities against Frostbite

First Glances at New Books

Science Loses When Steam Shovel Wrecks Indian Mound

First Glances at New Books

Front Matter

New X-Ray Device Shows up Human Interior in Relief

Scientist Obtains Data on Crow Indian Folklore

Man’s Relative Hairlessness Not Due to Wearing Clothes

“Universe Maker” Begins Tour of American Cities

Ribbon Microphone Keeps Noises out of Sound Movies