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Wood Molding Machine, Improvement in Steam Hammers

Platinized Looking-Glasses

By C. Widemann

Yaupon Teas of Carolina—Mate of Paraguay

By H. E. Colton

Guatemala, Its Inhabitants and Products-- Advice to Emigrants

By I. Cantini

English and American Iron-Clads Compared

[From the Army and Navy Journal.]

The Eagle Carpet Stretcher

How to Hitch Three Horses to One Plow

A Journey with a Raft

From the Building News

Improved Patent Vertical Drill

The Wages of Machinery

French Experiments with Liquid Fuel

Waste of Labor in Building

The Water Wheel Tests at Lowell

Positive Philosophy

Liebig on Fermentation

A Mile a Minute

The Economy of Steam Engines

Scientific Intelligence- February 26, 1870

Recent American and Foreign Patents- February 26, 1870

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

Patent Office Decisions- February 26, 1870

Answers to Correspondents- February 26, 1870

Official List of Patents- February 26, 1870

Issued by the United States Patent Office. FOR THE WEEK ENDING FEB. 15,1870. Reported Officially for the Scientific American.


  • New Books and Publications- February 26, 1870

  • Letters

    Correspondence- February 26, 1870

  • Departments

    Business and Personal- February 26, 1870

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February 26, 1870

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