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Improved Wood Pavement

The Air Compressors at the Mont Cenis Tunnel

Illuminating Gas--Natural Gas Wells--Coal Gas--Water Gas Fallacies

Kenwood Tower, Highgate, Near London

Expose of the Tricks of the Davenport Brothers

By P. H. Vander Weyde

Editorial Summary - January 27, 1872

The Franklin Statue in Printing House Square

Baldwin's Saw Clamp

What to do when you are in Trouble

The Antiquity of the Iron Manufacture

Heating and Ventilation of Buildings

The Spread of Small Pox

Polishing Wood

The Natural Features of South America--New and Interesting Discoveries

Scientific and Practical Information - January 27, 1872

To City Subscribers - January 27, 1872

Recent American and Foreign Patents - January 27, 1872

Under this heading we shall publish weekly notes of some of the more prominent home and foreign patents.


  • From the Editor

    Answers to Correspondents - January 27, 1872

  • Letters

    Correspondence - January 27, 1872

  • Recommended

    New Books and Publications - January 27, 1872

  • Departments

    Business and Personal - January 27, 1872

  • Notes and Queries - January 27, 1872

  • Index of Inventions - January 27, 1872

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