Feature

Extract Antigens from Germs with Intense Sound Waves

Production of Toluol Aided by New Formulas

First Glances at New Books

Front Matter

Walls of Salt May Serve as Shelter for Detroit

Record for Horizontal Flight Set by “Supercharged” Pilot

Good May Come out of War by New Scientific Discoveries

Frozen Dough for Cookies; Frozen Grass for Chickens

Whirling from 50-Foot Tower New Test for Parachutes

Find Homes of Plain Citizens of Mayan Civilization

U.S. Soldiers in Alaska Get Super-Warm Togs

Pictures on Screen Train Crews of R.A.F. Planes