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Features

Instruments for Drawing Curves

By C. W. MacCord

The Diagrammometer

How Turpentine is Collected and Manufactured

Otto of Rose

Removing Grease from and Bleaching Textile Materials

Water Softening Apparatus for Steam Boiler Feed

Color and Coloring

By A. H. Church

Grain or Net Negatives for Process Work

Charles Bourseul

Progress of Electric Welding

Electricity in Warfare

By Lieut. Bradley A. Fiske

The Velocities of Projectiles

Improved Life Buoy

The Sparrow's Point Marine Plant of the Pennsylvania Steel Company

Chest Development in Young Persons

By John J. Berry

Dr. Richardson on Alcohol

The Solution and Redeposition of Carbonate of Lime by Sea Water

New Strawberries

The Glow of Phosphorus

The Food of the Birds

By H. A. Macpherson

Building Plans and Specifications

The “Barking Sands” of the Hawaiian Islands

Useful Engineering Books

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September 20, 1890

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