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    Bartlett and Boomer's Extension Hemmer

    Improved Wheat Steamer and Dryer

    One Hundred Thousand Dollars Reward for a New Plan for Canal Propulsion

    Uncommon Food

    The Cotton Worm

    Combined Blotter, Ruler, and Paper Cutter

    Mussel Climbing

    By S. Lockwood

    Combined Milk Pail and Strainer

    Seifert's Balanced Steam Valve

    The Removal of the Hell Gate Obstructions

    One Hundred Thousand Dollars Reward for a New Invention for Propelling Canal Boats

    Inspection of Steam Boilers

    Compound Engines

    Scientific Intelligence- May 6, 1871

    More Humorous than Scientific

    Are Noisome Effluvia Injurious to Health?

    Answers to Correspondence- May 6, 1871

    Queries- May 6, 1871

    Recent American and Foreign Patents- May 6, 1871

    Official List of Patents- May 6, 1871

    Issued by the U. S. Patent Office

    Departments

    • Letters

      Correspondence- May 6, 1871

    • Recommended

      New Books and Publications- May 6, 1871

    • Departments

      Business and Personal- May 6, 1871

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    May 06, 1871

    See the World from a Different Perspective

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