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SA Supplements Vol 29 Issue 756supp

SA Supplements

Volume 29, Issue 756supp

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Features

Good Doctrine in Regard to Patents

Smokeless Powder—The Explosives of the Past and of the Future

Laddering a Tall Chimney

The Ship's Chronometer : Its History and Development

Henry Dent Gardner

Potash and Soda for Washing Woolen Yarn and Cloth

Refined Wool

E. J. Fischer

Preparation of Cereals for Brewing

A. Perry

Improved Automatic Tension for Driving Ropes

Automatic Heating of Wines

Electric Furnaces

E. Taussig

The Arc Light for Projection

L. H. Laudy

Electric Launches at the Edinburgh Exhibition

The Horse's Hoof

Williamson Bryden

Fishery Sketches

Bathing and Boating Accidents

Irving C. Rosse

Simple Experiments in Physics

Hypnotism in Paris

The Carbonized Refuse System for Sewage

Recent Synthetical Experiments in the Sugar Series

Pain Killers

A Test Apparatus for Generator Gases

Hydrogen Amalgam

Useful Engineering Books

Building Plans and Specifications