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Mammoth Cylinder Lithographic Machine

How We Stand and Walk

Abstract of a Lecture Delivered before the American Institute by Prof. Bart G. Wilder.

Manufacture of Saws in Sheffield

Condensed from The Ironmonger.

Improvement in Water Wheels

Perpetual Motion- January 7, 1871

Implement for Grinding Valves

The Hail-Storm of June 20, 1870

What Causes Aurora Borealis?

By Daniel Knode Winder

Eastern Long Island--Menhaden Oil and the Fisheries

Sag Harbor, Dec. 9, 1870.

Chubbuck's Patent Piston and Packing

Improved Self-Locking Stove Leg

Booton's Shot Case and Distributer

Gun Cotton


Where is the Limit of Invention?

The Profession of the Mechanical or Dynamical Engineer

The Mont Cenis Tunnel Completed

Spiritualism and Science

Air Light

Waste Liquors of Paper Mills

Queries- January 7, 1871

We present herewith a series of inquiries embracing a variety of topics of greater or less general interest. The questions are simple, it is true, but we prefer to elicit practical answers from our readers.

Scientific American

1871 Special Club Premium.

Alloy of Lead and Platinum

Recent American and Foreign Patents- January 7, 1871

Applications for Extension of Patents- January 7, 1871

Answers to Correspondents- January 7, 1871

Official List of Patents- January 7, 1871

Issued by the U. S. Patent Office for the Week Ending Dec. 27, 1870. Reported Officially for the Scientific American.


  • Letters

    Correspondence- January 7, 1871

  • Departments

    Business and Personal- January 7, 1871

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January 07, 1871

The Antidote to Anti-Intellectualism