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Features

Developments in Electromagnetism—I

A Review of Some Important Problems, and the Laboratory Results

By Eugene Bloch

Phenol for Coal Analysis

European Aeronautical Laboratories—II

Their Organization, Equipment, and Method of Investigation

By A. F. Zahm

To Make Nottingham a Port

British Metals and Alloys

The Protection of the Strong

A Discussion of the Working of Insurance Laws for the Protection of the Poor

The Furka Railway

A New Alpine Railway from the Rhone to the Rhine

By Alfred Gradenwitz

Atoms and Ions—V

A Comprehensive Discussion Especially as Related to Gases

By J. J. Thomson

Tide Analysis—A Simple and Inexpensive Apparatus

By Ernest W. Brown

Making Museums Useful

What an Active Curator Can do for a Small Collection

By Harlan I. Smith

Scientific Exploration in Central Asia

The History of Opium

Facts Concerning One of Our Most Valuable Drugs and its Derivatives

By David I. Macht

Coal Substitutes

Use of Chalk Fuel and Peat Proposed in England

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    May 29, 1915

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