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Improvement in Steam and Water Indicators, Concentrated Progress of the World, and more

Aide Memoire for Silicious Formulae

Practical Horology in America

Ice Machines

Transmission of Hydraulic Power From its Source to Propel Machinery at a Distance

Averill's Metallic Weather Strip

What Science Owes to Missionaries

Savoy's Patent Metallic Boot and Shoe Shank

M'creary's Patent Carriage Clip

Half a Day at Collinsville

Fruit Car-Eastern Market for Western Productions

Manufacturing, Mining, and Railroad Items

Recent American and Foreign Patents

Answers to Correspondents

New Publications

Propelling Boats on Canals

Are the Direct Rays of the Sun Healthy?

Pretentious Teachers

Mechanical Skill Not Always Artistical Taste

Manufacture of Plugs and Bungs

Editorial Summary

Patents and Claims

Issued by the United States Patent Office



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September 23, 1868

20% Sitewide for President's Day