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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 Milk Pail and Strainer

Mussel Climbing

By S. Lockwood

Combined Blotter, Ruler, and Paper Cutter

Seifert's Balanced Steam Valve

Compound Engines

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

Inspection of Steam Boilers

The Removal of the Hell Gate Obstructions

Scientific Intelligence- May 6, 1871

Are Noisome Effluvia Injurious to Health?

More Humorous than Scientific

Answers to Correspondence- 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

Queries- May 6, 1871


  • Letters

    Correspondence- May 6, 1871

  • Recommended

    New Books and Publications- May 6, 1871

  • Departments

    Business and Personal- May 6, 1871

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