Feature

Discoveries in Pure Science Conquer Deadly Poisons

Cholesterol Makes Ready for Growth of Cancer

Front Matter

New Barley Variety Awaits Return of Beer

Infra-Red Rays Blamed for Stuffy Feeling in Hot Rooms

Motion Pictures Made of Growing Nerve Fibers

Pollen Extract Oxidized for Hay Fever Treatment

Invisible Light from Flat-Irons Takes Picture

In Science Fields

Aerial Photography Taught at Harvard University

X-Rays Made as Cosmic Rays Plow through Gas

The Mechanical Equivalent of Heat: “A Classic of Science”