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SA Supplements Vol 32 Issue 813supp

SA Supplements

Volume 32, Issue 813supp

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Features

The Davis Island Dam on the Ohio River, Pittsburg, Pa

General Questions Regarding the use of the Westinghouse Air Brake and Train Signal

New British Cruisers

The Copper Resources of the United States

James Douglas

The French War Ship Jean Bart

Automatic Apparatus for Preventing Boiler Incrustation

Soap for Wool Washing

The Adaptation of Stoneware to Chemical Apparatus

W. P. Rix

Electric Discharge in Vacuum Tubes

J. J. Thomson

The Faraday Centenary

International Bicycle Race from Bordeaux to Paris

Velocities of the Ions

W. C. D. Whetham

Compressibility of Liquids

S. Skinner

An Electrolytic Process for Silver and Copper Ores

The Royal Society Conversazione

The Electromagnet in Eye Surgery

Silvanus P. Thompson, J. Tatham Thompson

The Reactions in the Aluminum Electrolytic Process

Useful Engineering Books

Building Plans and Specifications

The Light from Burning Sodium

Astronomical Photography

Departments

Patents- August 1, 1891