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Features

Fire Prevention

The Control of Fires throuǵh Scientific Methods

By Edward V. French

Trials of the “Danton”

Multiplex Telephony and Teleǵraphy—III

Electric Waves Guided by Wires

By Geor*amp*gacute;e O. Squier

Radiant Enerǵy and Matter—VI

By J. J. Thomson*amp*apos;s

Municipal Milk Supply in Germany

The Remarkable Institution of the City of Dresden

By Alfred Gradenwitz

The 1911 Convention of the American Railroad Master Mechanics Association

By Reginald Gordon

Power Plant Betterment

A General Statement of the Problem

By H. H. Hunt

Defective German Teeth

Pocket Ciǵar Lighters

Calcutta and her Water Supply

A Novel Elevated Reservoir of 9,000,000 Gallons Capacity

Oil-Driven Boats for Canadian Lakes and Canals

The Diesel Enǵine on Water

Gamblinǵ at Monte Carlo

“Systems” and why they Fail

What Constitutes Superiority in an Airship

An Analysis of Existinǵ Types

By Paul Renard

A Life Preserver for Aviators

Evaporation of Wine

Germs at Different Air Elevations

Recent Turbine Efficiencies

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    July 15, 1911

    Think Outside the Gift Box