Panama Canal and the Tehuantepec Railroad

The Discovery of the Ancient Hebrew Temple of Onias in Egypt

Rebuilding the Russian Navy

Superheated Steam in Railway Service

Electricity for Canals

Exports of Agricultural Products

Lord Kelvin's Conception of an Atom

A New Machine for Engraving Steel Plates

Gasoline Locomotives

By Our Berlin Correspondent

The Winning Cars in the Automobile Club of America's Two-Gallon Fuel Efficiency Contest

A Thermo-Electric Pyrometer of Low Resistance and Compensator

The Art of Piano Making--I

Effects of the Earthquake and Fire upon the City of San Francisco and Its Buildings

Earthquake Observations

An Improved Adjustable Clutch

An Improved Hand-Operated Meat Press

Water-Feed Regulator with Automatic Alarm

Business and Personal Wants