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Thomas Henry Huxley

Perpetual Motion

Improved Chimney Cleaner

Machine for Oiling Wool

Carbureted Hydrogen Gas

Automatic Telegraphy

By D. H. Craig

American Institute Lectures.--The Struggles of Science

Dr. Doremus on the Triumphs of Science

Progress of Chemical Science

The Solar Eclipse of 22nd December, 1870

Six Months of Progress in Engineering

Standard Public Time

Testing the Strength of Boilers by Steam Pressure

Fatal Explosion of a Gasoline Reservoir--A Warning to Mechanics

The Uses of Dissociation

Scientific American 1871

Answers to Correspondents- January 1, 1871

Harvey Brown

Queries- January 1, 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...

Recent American and Foreign Patents- January 1, 1871

Under this heading we shall publish weekly notes of some of the more prominent home and foreign patents.

Official List of Patents- January 1, 1871

Issued by the U. S. Patent Office for the Week Ending December 20, 1870. Reported Officially for Scientific American.


  • Letters

    Correspondence- January 1, 1871

  • Departments

    Business and Personal- January 1, 1871

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