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Features

A New Grain Elevator

Making Excuses

Diphtheria

A Valuable Gift by Chemistry to the World

Publishers' Card

Six Good Reasons Why Every Manufacturer, Mechanic, Inventor, and Artisan Should Become a Patron of the Scientific American

Working Men's Reading Rooms

Weak Sparks

That Obnoxious Postal Law

Recent Improvements in the Screw Propeller

Steam Cultivation

Robertson's Iron Fence

A Non-Retreating Bunsen Burner

By Henry Morton

Improved Screw Cutting Die and Holder

Donkey Pump

Plate Shearing Machinery

The Krupp Twelve Hundred Pounder Gun

The Trinity Shoals Lighthouse

Recent American and Foreign Patents - December 18, 1875

New Agricultural Inventions

New Woodwork and House and Carriage Building Inventions - December 18, 1875

New Mechanical and Engineering Inventions - December 18, 1875

New Household Articles - December 18, 1875

New Chemical and Miscellaneous Inventions - December 18, 1875

Communications Received - December 18, 1875

Canadian Patents - December 18, 1875

Departments

  • Letters

    Correspondence - December 18, 1875

  • Recommended

    New Books and Publications - December 18, 1875

  • Departments

    Notes and Queries - December 18, 1875

  • Business and Personal - December 18, 1875

  • Index of Inventions - December 18, 1875

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December 18, 1875

Think Outside the Gift Box