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Features

La Gloire

American Naval Architecture

Towers' Patent Broom

Electricity and Some of its Practical Applications

Romance of the Steam Engine

Column of Varieties

Manufacture of Colors

An Evening at the Polytechnic

Who Ought to be Commissioner of Patents?

Inventors More Hopeful—Advice Gratis and Advice for Pay

Productive Consumption of Wealth

A Newspaper Befogged—Ignorance Concerning Patents—McCormick's Reaper Extension

The Polytechnic Association of the American Institute

Patent Claims - February 16, 1861

Whipple's Improved Air Engine

Departments

  • Letters

    Our Correspondence - February 16, 1861

  • Departments

    Notes and Queries - February 16, 1861

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February 16, 1861

Complex Causes. Alternative Solutions.