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A New Electric Subway in Paris

The North-South Line By the Paris Correspondent of the Scientific American

Rules Governing the Competition for the $15,000 Flying Machine Prize

By Edwin Gould

The Armament of Battleships

By William White

Some Notes on Telephony

Facts and Principles Underlying Modern Practice The Sibley Journal ot Engineering of Cornell University.

By H. Harrison

What Electrochemistry is Accomplishing—II

Modern Methods and their Results

By Joseph W. Richards


The Structure of Metals

By Alfred Gradenwitz

The World's Greatest Ship—The “Olympic” 60,000-ton Vessel

The City Water Sterilizing Process Used at Marseilles

The Paris Correspondent of the Scientific American

Drifting of the Sun's Family

A Great Unsolved Astronomical Problem

By Arthur K Bartlett

The Destruction of Weeds by Chemical Means—I

An Important Agricultural Problem

By Harold C. Long

Paris as a Seaport

A Proposed Canal between Paris and Rouen By the Paris Correspondent of the Scientific American


Index of Inventions

Some Mountain Winds and their Names

By C. Fitzhugh Talman


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