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A New Basis for Photo-Mechanical Processes

The Artificial Silk Industry

Gutta Percha—Its Properties and Uses

Railroading as a Profession

Armored Cupola for Fort Waelhem

The Portuguese Cruiser “Adamastor”

A Course of Instruction in Road Building

The Clinker Filter

Machine for Throwing Grenades with Greater Accuracy and to a Greater Distance than can be done by Hand

A Hydraulic Engine

By Arthur Rigg

The New Palaces of the Champs Elysees

Electric Arc Injurious to Eyesight

The Bank of France

An Athletic Feat

The Modern Novelist and Medical Subjects

Engineering Notes

Selected Formulæ

Miscellaneous Notes

An Improved Sunshine Recorder

By D. T. Maring

Modern Views of the Rainbow

The Effect of the “Bora” in the Duga Pass, Montenegro

Falize's Bust of Gallia

The Magnetic Properties and Electrical Resistance of Iron at High Temperatures


A Humbug—Art Versus Nature

By George Archie Stock well

Eduard Lindemann and Oscar Stumpe

A Readable Account of the Manufacture of Lactic Acid



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    February 26, 1898