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Proposed Palm Oil Industry

The Prospects of Trade

The Effect of Forests Upon Rainfall

The Brunton Tunneling Machine

Infected Cigars

Police Telephones

Apparatus for Adjusting Balance Wheels of Watches

New Nursing Bottle

Mechanical Inventions

Lightning-Proof Oil Tank

Mr. Eads' Ship Railway for the American Isthmus

Miscellaneous Inventions

Improved Bolt for Double Doors

Deep Sea-Sounding Apparatus

Improved Bottle Stopper

The Hunting Falcon

Improved Gas Burner

The Nutrition of Roots

Communications Received


  • Departments

    Recent Inventions

  • Business and Personal

  • Notes and Queries

  • New Books and Publications

  • Index of Inventions

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November 13, 1880