Feature

Front Matter

Einstein Read Philosophy When Only 13 Years Old

In Science Fields

Most Observers Expected to Watch Meteor Shower

Compression of Hydrogen May Cut Guess at Sun’s Age

Absolute Temperature: “A Classic of Science”

Height of Shooting Stars Measured with Wire Frame

Electrified Particles in Air May Explain “Curative Values”

New Steel-Making Materials Aid U. S. Defense Plans

Radium Found Deadly to Germs of Disease

First Welded Penstock Built in California

Largest Diesel Engine Built for Danish Power Plant