SA Supplements Vol 86 Issue 2229supp

SA Supplements

Volume 86, Issue 2229supp

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Features

The Rubber Industry

And What Science Has Done For It

J. Bretland Farmer

Silver Acetylide

The Common Snails

Their Relation to Balanced Aquaria

Ida M. Mellen

On the Correction of Optical Surfaces

A. A. Michelson

Draining the Zuider Zee

The Manufacture of Oleomargarine

An Historical Review and Description of Modern Methods

Destroying Aphides and other Garden Operations

Apos. Versus Achros

New Process for Manufacturing Filaments for Glow Lamps

Origin of Blackdamp

A Test for Damaged Wheat

Shoes of the French Soldier

A New Type of Iron-Concrete Arch

The Large Power Station

Problems of Control of Electric Generating Stations

Manufacture of Paper-Pulp, etc., from Dead Leaves

The International Bureau of Weights and Measures

Animal Weather Prophets

Refractoriness under Load

An Optical Method for Accurately Dividing a Circle into Degrees

R. S. Clay

Prevention of Coal-Dust Explosions in Mines

Influence of Air Pressure on Fermentation

Effect of Silver on Bacteria

The Waste Sulphate Liquor Problem

Bjarne Johnsen

Low-Grade Fuels

Possible Methods of Disposal

Researches in Far Eastern Seasonal Correlations

Soy-Bean Cheese

Carbonization of Wood in Inclined Retorts at Varta Gasworks, Stockholm

Plant Stimulation by Electricity