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The Tanite Company's New Milling Machine

A Panic at the Patent Office

Economy in Eating

Demoniacal Possessions

Reports on Small Engines

A Siphon for Poisonous Liquids and Acids

Improved Draftsman's Rule

Lights for Greenhouses

The Fairmount Park Bear Pits

Milk Cooling Can

Spiders' Webs and Spinnerets

Some New Galvanic Batteries

Improved Disintegrator

Improved Self-Locking Padlock

The Early History of Wheeled Vehicles and Railways

The English Channel Steamers

Decisions of the Courts - October 31, 1874

Supreme Court of the United States

Recent American and foreign Patents - October 31, 1874

Answers to Correspondents - October 31, 1874

Canadian Patents - October 31, 1874

Communications Received - October 31, 1874


  • Letters

    Correspondence - October 31, 1874

  • Recommended

    New Books and Publications - October 31, 1874

  • Departments

    Business and Personal - October 31, 1874

  • Index of Inventions - October 31, 1874

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October 31, 1874

Confronting Common Wisdom