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The Dewey Arch

Acetylene for Lantern and Enlarging

The Manufacture of Dongola

The Works of the Diamond Match Company, Limited

Speed-Changing Gears for Motocycles and Phaetons

Trade Suggestions from United States Consuls

Miscellaneous Notes

Trade Notes and Receipts

Selected Formulæ

Peat in Ontario

The Wreck of Krakatoa

Scenes in Tokio

Commercial Africa

The Mississippi Snapping-Turtle

Hurricane in Guadeloupe

Quebracho Tannage

By W. Eitner

Robert Wilhelm Bunsen

An Advance in Measuring and Photographing Sounds

By Benjamin F. Sharpe

Boats and Sails.—I

Tools for Testing Boat Models

By Walter Burnham

The Modern Warship as Combining in itself the Highest Results of Skill, Ingenuity and Scientific Knowledge

The Charging and Care of Automobile Batteries

By Theodore D. Bunce



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    October 14, 1899

    20% Sitewide for President's Day