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Features

The Gatling Battery Gun and Cartridges, The Steam Ram Dunderberg

English Locomotives

Patent Law--An Interesting Question

Editorial Summary

Ferry Across the English Channel

Snow Melted by Friction-Dangerous Paper

By Charles A. Seeley

Suine's Culinary Instrument

A New Lever Movement

The Compass--Local Attraction

Mueller's Stove Handles

Recent American and Foreign Patents

Kearney's Water Valve for Water Supply Pipes, Gas Companies, Steam Engines, Etc.

Chemical Ingredients of Celestial Light

Advertisers

Commissioners to the French Exhibition

Fertility of American Genius

Canadian Patent Laws

Case Hardening of Iron

Reforms in the Patent Office

Coloring and Dyeing Ivory

The Ocean Yacht Race

The Paris International Exhibition

Gleanings from the Polytechnic Association

Practical Education for Mechanics

Railroad Items

How People Live in Paris

The Cotton Manufacture

Answers to Correspondents

Patent Office Decisions--Combination Tool Patent

Disinfectants--A Valuable Report

The Markets

Departments

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  • Business and Personal

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January 12, 1867

Confronting Common Wisdom