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The Effect of Forests Upon Rainfall

Proposed Palm Oil Industry

The Prospects of Trade

The Brunton Tunneling Machine

Infected Cigars

Police Telephones

New Nursing Bottle

Mechanical Inventions

Apparatus for Adjusting Balance Wheels of Watches

Lightning-Proof Oil Tank

Mr. Eads' Ship Railway for the American Isthmus

Miscellaneous Inventions

Deep Sea-Sounding Apparatus

Improved Bolt for Double Doors

Improved Bottle Stopper

The Hunting Falcon

The Nutrition of Roots

Improved Gas Burner

Communications Received


  • Departments

    Recent Inventions

  • Notes and Queries

  • Business and Personal

  • New Books and Publications

  • Index of Inventions

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