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Features

Metallic Calcium from Lime

The Power Plant for the Metropolitan Street Railway of Paris

By Emile Guarini

Contemporary Electrical Science

An Unrecorded Property of Clay

How Peas are Canned

New Folding Opera Glasses

A Speedometer for Automobiles

Coloring of Metals

Process by Oxidation

The New Automatic Hattersley Loom

The English Correspondent of the Scientific American

The Schroeder Contact Process of Sulphuric Acid Manufacture

History and commercial development

By Franz Meyer

Preservation of Wood

The Magnetic Observatories of the United States Coast and Geodetic Survey in Operation on July 1, 1902

By L. A. Bauer and J. A. Fleming

Vegetable Physiology

By J. Reynolds Green

Impurities and Purification of Acetylene

“Living Cycle Whirl”

Railway Receiverships

The Size of Atoms

The Diplodocus Carneggii

Excavations at Abydos

Electrical Notes

Engineering Notes

Trade Suggestions from United States Consuls

Selected Formulæ

Patents

Departments

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