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Spectrum of Radium

Galvanic Action of Copper Sheathing


The Report of the Merchants' Association on the New York Water Supply

Experiments on Amalgams

Operation of Welsbach Burners

Paris Exposition Awards

The Mastery of the Ocean

A Cactus in the Botanical Garden at Berlin

A Cotton Per Cent Scale

A Novel Grooving-Saw and Dado-Head

The Langen Mono-Rail Road at the Paris Exposition

The Use of Flexible Bridles on Kites

Some Metallurgical Exhibits at the Paris Exposition

Manufacture of Illuminating Gas

Aleuts of the Alaska Peninsula

A Unique Pigeon Postal Service

The Langston Mooring Device

Chicago Automobile Exhibition and Race Meet

By Arthur T. Kellogg

The Tri-State Fair Automobile Races


  • Departments

    Index of Inventions - October 6, 1900

  • Business and Personal - October 6, 1900

  • New Books, Etc. - October 6, 1900

  • Recently Patented Inventions - October 6, 1900

  • Notes and Queries - October 6, 1900

  • Patents - October 6, 1900

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