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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

The Big Warrior Bridge Near Cordova, Alabama

Improved Collapsible Lifeboat

Automatic Spoke Lathe

The Krupp Rapid Firing Gun

Mica Mining in North Carolina

By Wm. B. Phillips

Coal Getting by Hydraulic Press

Photograph of the Eye by Flash of Magnesium

Photographs of Projectiles in Motion

The Omni-Telemeter

The Royal Society

Potato Starch

Science and Revelation

French Shadows

Quartzites and Siliceous Concretions

By W. O. Crosby

The French Association in Algeria

Dr. Von Luschan's Journey in Asia Minor

Tobacco Cultivation in the Dutch East Indies

A New Catalogue of Valuable Papers

How to Administer Gaseous Enemata

Building Plans and Specifications

Improved Chemical Apparatus

By George H. Bostock

Useful Engineering Books

Manufacture of Alpha-Naphthylamine


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    Patents - July 21, 1888

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