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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

Emery in Asia Minor

Some Botanical Curiosities

Preservation of Algæ

A New Theory of the Milky Way

By C. Easton

Hunting for Swallows' Nests in Java

Annealing Tap Steel

Engineering Notes

Selected Formulæ

Miscellaneous 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

Locomotive “Sparks” as Fuel

Windmill

The Minerals and Metals of the United States

Filtration of Milk

Patents

Departments

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    April 09, 1898

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