Feature

Front Matter

Present War May Bring Conquest of Influenza

[Photograph]: Most Unconventional

500 M.P.H. Airplane Wing Forecast in Research Tests

Thermal Pump Uses Heat Not Mechanical Energy

Spiders Help Fight the War; Their Webs Make Cross-Hairs

Quiet Hunt Begun in U. S. for Emergency Mines

Sulfapyridine Helps Baby Recover from Influenza

German Economist Credits Britain with Great Strength

Japan Plans Program of Synthetic Rubber Making

Trenches Used in Forests as Defense against Fire

In Science Fields