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Features

The Most Powerful Electric Light in the World

Improved Alternate Current Dynamo

Practical Applications of Electric Welding

By O. K. Stewart

Ruling Gradient

By Eliot Holbrook

The Panama Ship Canal

Improved Collapsible Lifeboat

The Big Warrior Bridge Near Cordova, Alabama

Automatic Spoke Lathe

The Krupp Rapid Firing Gun

Coal Getting by Hydraulic Press

Mica Mining in North Carolina

By Wm. B. Phillips

Photograph of the Eye by Flash of Magnesium

Photographs of Projectiles in Motion

The Omni-Telemeter

Potato Starch

The Royal Society

Science and Revelation

French Shadows

Quartzites and Siliceous Concretions

By W. O. Crosby

Dr. Von Luschan's Journey in Asia Minor

The French Association in Algeria

Tobacco Cultivation in the Dutch East Indies

Useful Engineering Books

A New Catalogue of Valuable Papers

Building Plans and Specifications

How to Administer Gaseous Enemata

Improved Chemical Apparatus

By George H. Bostock

Manufacture of Alpha-Naphthylamine

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July 21, 1888

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