SA Supplements Vol 55 Issue 1417supp

SA Supplements

Volume 55, Issue 1417supp

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Features

The Water Supply of London.—II

By the English Correspondent of the Scientific American

English and German Tank Locomotives

Frank C. Perkins

Farm Machines that seem Almost Intelligent

The Theory of Wehnelt Interrupters

Beton Frette

Anti-Friction Bearings

Henry R. Lordly

Improvements in Sugar-Refining during the Last Twenty-Five Years

T. L. Patterson

Balata and its Employment

The Milk Question and Mortality among Children

Portable Wireless Telegraph Equipments in the German Army

A. Frederick Collins

Contemporary Electrical Science

Radium, Polonium, and Actinium

William J. Hammer

Development of the Ceramic Art in China

Randolph I. Geare

The Naval War Game between the United States and Germany.—IX

Operations Off Kiao Chau

Fred T. Jane

Italian Endurance of Arctic Cold

The Bacterial Treatment of Trades Waste

An Interesting Problem in the Chemistry of Metals

Trade Notes and Recipes

Trade Suggestions from United States Consuls

Selected Formulæ

Patents!