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The Union Electric Semaphore Signal


How Soap is Colored

By F. A. Emmel

Influence of the Academie Des Sciences on Improvements in Measuring Time

Professor Langley's Bolometer

The Pilgrimage to Mecca

Facts about Honey

Korea's Curious Currency

A New Turbine Engine


By S. D. Mott

Our Ice Cream Bill

Business Opportunities in Portuguese Colonies

The Kincaid Locomotive Stoker

International Alcohol Exposition of Lighting and Heating Apparatus

German Processes and Machinery for Briquette Manufacture

The Chemical Factor in Human Progress

By Peter T. Austen

Excavations in Palestine

The Destruction of Ants

Surveying in Central American

Recent Coal Labor Statistics

Horse Breeding in Germany and France

Determinate Causes of the Formation of the Visual Organs

The Maladies of Wines

Trade Suggestions from United States Consuls

Trade Notes and Recipes



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    Dwindling Supply. Increasing Demand.

    Dwindling Supply. Increasing Demand.

    Solving the Water Crisis