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The Inertia of Energy

As Related to the Evolution of Matter

By Louis Rougier

Fluorescent Bacteria

Pacifying the Jack Rabbit

The Formation of Diamonds

Life in a Submarine

The Stupendous Smallness of our Earth

By Charles Nevers Holmes

Wave Detectors for Wireless

The Oscillation Valve

By J. A. Fleming

Electric Shock vs. Electric Burns

Origin of Pyrite

Superheater Development in American Locomotives

By George L. Bourne

The War's Effect on Merchant Shipbuilding—II

The Standard Ship and Momentous Problems of Production

By Homer L. Ferguson

The Cornish Gage

Paraffin and Ambrine in the Treatment of Wounds

Ferro-Concrete Shipbuilding

Recent Developments and Methods of Construction

Peculiar Properties of Rubber Sponges

Solving the Theorem of Pythagoras

French Army Helmet

The Human Factor

Economy in Bread-Making

Diderot's Encyclopedia

Use of Hydrogen Peroxide in the Brewery

Military Aircraft and their Armament

Tactical Maneuvers and Developments that have Resulted

By Jean Abel Lefranc

Early Civilization in America

Light Transmission through Telescopes

Self-Inflicted Injuries among Soldiers

Acquired Radio-Activity



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