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Features

The Lapps at the Garden of Acclimatization

Telephone Calls

By M. Hopkins

Call Bell and Morse Combination for Telephone Lines

The Lorenz Telephone Call

Electric Lamps

Improved Milling Machinery and Methods

By Joseph F. Gent

Lord Rayleigh's “Theory of Sound”

Porcelain Rollers for Milling

The Sachsenberg Hot Air Engine

War Rockets

The Largest Gun in the World

Faure's Plate and Saucer Machine

American Machinery in England

Cross-Raising Machine

Bromide of Copper—Its Preparation and Peculiarities

Pierrard's Improvement in Combing Machines

Plaiting Spun Yarn

Woolen Looms in Germany

Platt's Universal Filter

Medical Uses of Salicylic Acid

Treatment of Dyspepsia

Changes in Chlorophyl

Chemical Notes

The Treatment of Ulcers with a Saturated Solution of Chlorate of Potassium

By T. M. Rochester

Discoveries in Western Caves

By Horace C. Hovey

Disinfectants, and their Special Application

By E. L. Griffin

Australian Sugar

A New Fruit House

Record of Recent Scientific Publications

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