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Features

Science Notes

New Bogie Transport Cars

By Emile Guarini

Liquid Fuel for Naval and Marine Uses

Liquid Fuel in the Merchant Marine

By George Melville

Simple Transformer for Amateur Use

By Edmund S. Smith

Contemporary Electrical Science

Simple Experiments with Currents of High Tension and Frequency

By Thomas R. Hopper

Solutions of Solids and Solid Solutions

By J. H. Stansbie

Old Inventions

By F. M. Feldhaus

Natural and Artificial Patinas

Recent Foreign Methods for the Production of Celluloid and Similar Substances

Gold Molecules in Solution

By G. T. Beilby

A New Departure in the Chemistry of Albuminoids

The Rise of Anthropology

Apparatus for Intra-Thoracic Operations

A Visit to the First Show of the Aero Club of America

By Carl E. Myers

The Sun's Distance

By Alexander W. Roberts

Trade Notes and Formulæ

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