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Equable Temperature in the Subway

The Grants of the Carnegie Institution

An Imperial Floating Exhibition

Corrosion of Architectural Steel

Near Completion of the First Hudson River Tunnel

Relative Strength of the Naval Powers

Carroll Davidson Wright

By Marcus Benjamin

Preventing Frost on Show Windows in Winter

Dispersion of Fogs by Electricity

An Ingenious Machine Which Greatly Simplifies the Process of Printing

Pullman Cars in Railroad Accidents

The New Stage of the Metropolitan Opera House

Making Asbestos Fire Curtains and Fireproof Fabrics

By A. Frederick Collins

The Aborigines of Japan

By Walter L. Beasley

Spur Attachment for Leggings

A Handy Coin Holder

Cooking Device for Camping Purposes

Lifting Jack

Automatic Track Gage

Business and Personal Wants


  • Departments

    Correspondence - February 6, 1904

  • The Heavens in February - February 6, 1904

  • Index of Inventions - February 6, 1904

  • Recently Patented Inventions - February 6, 1904

  • Notes and Queries - February 6, 1904

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