SA Supplements

The Most Powerful Electric Light in the World

Practical Applications of Electric Welding

Improved Alternate Current Dynamo

Ruling Gradient

The Panama Ship Canal

The Big Warrior Bridge Near Cordova, Alabama

Improved Collapsible Lifeboat

Automatic Spoke Lathe

The Krupp Rapid Firing Gun

Coal Getting by Hydraulic Press

Mica Mining in North Carolina

Photographs of Projectiles in Motion

Photograph of the Eye by Flash of Magnesium

The Royal Society

Potato Starch

The Omni-Telemeter

Science and Revelation

French Shadows

Quartzites and Siliceous Concretions

The French Association in Algeria

Dr. Von Luschan's Journey in Asia Minor

Tobacco Cultivation in the Dutch East Indies

Building Plans and Specifications

Useful Engineering Books

How to Administer Gaseous Enemata

A New Catalogue of Valuable Papers

Manufacture of Alpha-Naphthylamine

Improved Chemical Apparatus

Patents - July 21, 1888