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Military and Strategical Value of Oil Fuel

Surface Indications of Oil

Fine Performance of the Battleship Kentucky

By R. W. Mc Neely

The Berthier Actino-Electric Transformer

By Emile Guarini

The Dredger “Marquess”

Automatic Control of Locomotives

New Apparatus for Photographing the Background of the Eye

Mail Box for Rural Delivery Service

Malting and Brewing Conducted on Scientific Principles--II Brewing

Relics of the Spanish Armada

A Sectional Bookcase

Business and Personal Wants


  • Departments

    Correspondence - June 18, 1904

  • Recently Patented Inventions - June 18, 1904

  • Index of Inventions - June 18, 1904

  • Notes and Queries - June 18, 1904

  • Patents - June 18, 1904

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