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Features

Sanitary and Scientific

Car Brakes and Steel Dust

The Reorganization of the British Navy

Calvin Milton Woodward

By Marcus Benjamin

New Electric Capstan at Antwerp

A Double Pepper

A Rapid Photographic Printing Apparatus

Insects Found in Amber

By Jacques Boyer

The Magnitude of the Oil Industry

Thornycroft 120-Horse-Power Gasoline-Propelled Torpedo Launch

Pills and Potions: How they are Manufactured by the Million in Modern Chemical Laboratories

By Hugo Erichsen

A Double-Headed Tortoise

A Novel Life-Float

A Radium Clock

Business and Personal Wants

Departments

  • Departments

    The Heavens in January - December 30, 1905

  • Correspondence - December 30, 1905

  • Notes and Queries - December 30, 1905

  • Index of Inventions - December 30, 1905

  • Recently Patented Inventions - December 30, 1905

  • Patents - December 30, 1905

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Dwindling Supply. Increasing Demand.

Dwindling Supply. Increasing Demand.

Solving the Water Crisis