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Features

Sir William Ramsay

The Education of a Technical Chemist

By William Ramsay

The Longevity of Birds

Shapes of Ties

A New System for Securing Secrecy in Wireless Telegraph Signaling

By Emile Guarini

Natural and Artificial Perfumes

By Max Heim

Artificial Gutta-Percha

Some General Rules for Staining Wood

The Vast Exposition Palaces of the World's Fair

Steam Turbine Propulsion for Marine Purposes

By A. Rateau

Contemporary Electrical Science

Electric Theory of Matter

The Jungner Nickel-Iron Accumulator and its Origin

By M. V. Schoop

Aquatic Leathers

By Charles H. Stevenson

Hoisting

Electrical Notes

Trade Notes and Recipes

Selected Formulæ

Engineering Notes

Patents!

Departments

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    September 17, 1904

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