Feature

First Glances at New Books

War Brings Renewed Danger of Invasions by Insect Foes

Woman Scientist Discovers How Plants Make Cellulose

Air Fighters Should Tank up on Oxygen before Ascents

High Blood Pressure Reduced by Kidney Extract Cocktail

Bacteria Digest Shells of Lobsters and Crabs

Front Matter

Manufacture Radium by Atom Smashing

Fourth Pithecanthropus First Adult Male for Study

[Photograph]: Diatoms Test Lens Quality

Erratum: Nobel Physics Prize Honors Machine as Well as Its Maker

Protection of Civilians Is Paramount Duty of Science