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Features

Chinese Government Officials

Trade of Spain in 1897

Speech of Hon. Thomas A. Jenckes, in Defense of the Patent System

Preservation of Algæ

Emery in Asia Minor

Some Botanical Curiosities

Hunting for Swallows' Nests in Java

A New Theory of the Milky Way

By C. Easton

Annealing Tap Steel

Miscellaneous Notes

Selected Formulæ

Engineering Notes

The Restoration of Marienburg

Laboratories of Cornell University

By L. B. Elliott

Tuberculosis and Vinegar

By John Ashburton Cutter

Linde's Method of Producing Extreme Cold and Liquefying Air

By A. J. Ewing

Amateur Plaster Casts

Articulated Locomotives

Polishing Marble

Little's Continuous Recording Indicator

The Minerals and Metals of the United States

Locomotive “Sparks” as Fuel

Windmill

Filtration of Milk

Patents

Departments

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