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SA Supplements Vol 34 Issue 866supp

SA Supplements

Volume 34, Issue 866supp

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Features

The Pneumatic Motor for Surface Roads

Herman Haupt

Oil Engine and Launch

A Short History of Bridge Building

C. R. Manners

Mirror for Laying out Straight Lines

Lamp Black and Bone Black

Henry J. Williams

Decorticating Ramie

Blue Brass

A Fatal Thunderbolt at Bourges, France

Insulation

Thomas A. Edison

The Cyanide Process for Working Gold and Silver ores without Amalgamation

The Macarthur Metallurgical Filter

Rat Catching

A London Ivory Sale

Long-Tailed Japanese Fowls

On the Uncertainty of Conclusions

T. C. Mendenhall

The Fourth Centenary of Columbus

Improved Mean Time Sun Dial

Mental Evolution in Man and the Lower Animals

Alice Bodington

Rose-Covered Porches

Action of Nitric Oxide upon the Metals and Metallic Oxides

Paul Sabatier, J. B. Senderens

Useful Engineering Books

Patents

A New Gaseous Incandescent Lamp

H. N. Warren