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The Maffei Steam Motor Coach

Dust Preventives

The Temporary Tar and Oil Binders, Emulsions and Similar Preparations

By Prevost Hubbard

A So-Called Lost Art

The Rhone 350,000-Horse-Power Project

An Apparatus for Destroying Moths

Using the Electric Light as a Trap

Interesting Technical Hints on Porcelain

Gyroscopic Balancing of Aeroplanes

Suggested Methods Of Maintaining Equilibrium

By Lucien Fournier

The Cost of Electrical Heat

Our Present Knowledge of the Subject

Electrical View of Matter

By Oliver Lodge

The New “Mono-Telephone.”

A Highly Sensitive Receiver

Aerial Flight in Theory and Practice

Synthetic Preparation of Ammonia

H. M. S. “Vanguard.”

The Latest Of The British “Dreadnoughts”

A Home-Made Pneumatic Elevator

How it was Built by an Ingenious Mechanic

By Philip Bellows

A New Idea in Blast Furnaces

Using a Blast Containing an Excess of Oxygen

Improved Steels

German Canary Birds

The Rays of Uranium X

The Evolution of Heat by Living Foliage

A Curious Phenomenon of Plants

By Hans Molisch

New Solvents of Fatty Substances

The Flight of Birds.—II

The Mechanics of a Bird's Way in the Air

By F. W. Lanchester

The Theory of Dyeing

By S. H. Higgins

Moisture and Chemical Change

How Water Affects Chemical Reactions

By H. Brereton Baker

Engineering Notes

Science Notes

Trade Notes and Formulæ


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    May 15, 1909