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Towing Canal-Boats by Electricity

Color Impressions

Mechanical Traction on Canals

The New Smokeless Powder Guns of the United States Navy

Trade Risks to Eyesight

The Homemade Windmills of Nebraska

By Erwin Hinckley Barbour

Competition for the Best Life-Saving Device in Cases of Disaster at Sea

Anthony Pollok Memorial Prize

Influence of Various Oxides on Incandescent Mantles

By W. Bruno

Iodine in Articles of Diet

The Buildings of the Pan-American Exposition of 1901

The Natives of Australia and their Origin

By R. Lydekker

Ancient Egyptian Gardening

Automobilism in Hospital Service

Mysterious Clocks

Recording Fern Shapes

Lattice Refrigeratories

Trade Suggestions from United States Consuls

Selected Formulæ

Miscellaneous Notes

Trade Notes and Receipts


Travels in Abyssinia


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January 27, 1900

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