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Steel Ties on Roads with Heavy Traffic

The Fastest Warship Afloat

Conservation of Our Fuel Resources

Power Consumption in the Rapid Transit Subway

Present Condition of the Pan-American Railway

Science Notes

The Current Supplement

Special Schools for Eminently Gifted Pupils

The Emanation of Sodium

The Irrigation of Egypt and the Success of the Aswan Dam

The Outcome of the Lemoine Case

The Curiosities of Feeling, Hearing, Seeing and Smelling

By Jacques Boyer

The California Condor

By William L. Finley

The Great Roosevelt Irrigation Dam

By Day Allen Willey

The German Battleship “Braunschweig”

By Frank C. Perkins

An Aeronautic Society for Inventors

The “June Bug” Aeroplane--A Competitor for the Scientific American Trophy


  • Departments

    Correspondence - July 4, 1908

  • Recently Patented Inventions - July 4, 1908

  • Notes and Queries - July 4, 1908

  • Index of Inventions - July 4, 1908

  • New Books, Etc. - July 4, 1908

  • Patents - July 4, 1908

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