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  • Departments

    Revival of the Second-Class Mail Matter Question

  • The Problem of San Francisco Bay

  • The Production of Gold

  • A Great Russian Pipe Line

  • The Utilization of Wastes for Power

  • An Assumed Inconstancy in the Level of Lake Nicaragua; A Question of Permanency of the Nicaragua Canal

  • A World's Record in Bridge Building

  • Two Forms of a New Dish-Washing Machine

  • A Mechanical Stoker for Furnaces

  • The Progress of Practical Aeronautics during 1899

  • Casting Pig Iron by Machinery

  • The Round-Lap Bale Method of Shipping Cotton

  • A Tool for Transplanting Buds

  • An Improved Apparatus for Raising Liquids

  • The Xiphopages, Rosalina and Maria

  • Correspondence

  • Recently Patented Inventions

  • Index of Inventions

  • New Books, Etc.

  • Notes and Queries

  • Business and Personal

  • Patents

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