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  • Departments

    Garbage Disposal of New York City

  • Quartz Thermometers

  • Recent Discoveries in Corinth

  • An Unfortunate Compromise

  • Wireless Telegraphy in South Africa

  • Relation between Transverse and Crushing Strength of Timber

  • American Association for the Advancement of Science

  • Muir Glacier Destroyed

  • Paris Exposition Notes

  • Dredges on the Mississippi

  • The New Air Ship of M. De Santos Dumont

  • The Differences between Malarial and Non-Malarial Mosquitoes

  • The Wheat Crop of California

  • Gold Mining in Georgia

  • The Elevated Railway Drawbridge, Boston

  • An Air-Directing Device for Electric Fans

  • Recently Patented Inventions - July 7, 1900

  • Business and Personal - July 7, 1900

  • Notes and Queries - July 7, 1900

  • Index of Inventions - July 7, 1900

  • Patents - July 7, 1900

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