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Some Roman Amphitheaters.-I

Trade in Ancient Assyria

The Explosion of Potassium Chlorate

Prof. Spring's Experiments on Plasticity

The Aquarium at the Paris Exposition

The Metallurgic uses of Aluminium

The Thomson-Houston underground Trolley

Upper Air Movements

Clockwork at the Exposition of 1900

The Present Condition of the Coal Tar Industry

By H. W. Jayne

The Extermination of Malaria-Breeding Mosquitoes by Petroleum and Drainage

By Henry Clay Weeks

New Apparatus for Testing Materials in the Laboratory of Purdue University

By William Kendrick Hatt

Turbines at the Paris Exposition

Cutting Structural Iron by Means of the Electric Arc

By J. R. Cravath

Drinks of the World

The Menace of the Barber Shop

Trade Suggestons from United States Consuls

Trade Notes and Receipts


  • Departments

    Patents - January 5, 1901

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