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Seasonable Information

Improved Method of Operating Valves

Patent Claims - July 17, 1858

Issued from the United States Patent Office

Recent Patented Improvements - July 17, 1858

The Patent Office Bureau

The Maryland Institute

New Patent Hydrant

Our Board of Health Again

Smallpox and the Poor

The Geology of North America

Deferred Articles

Ingenuity Wrongly Applied

Important to Patent Agents and Lawyers

Goodyear's Patent Extension

Commissioner Holt's Decision

To Our Subscribers

Sniff's Sausage Machine

Treatment of Copper Ores

Mechanics

Improved Grain Cleaner

How to Dye Green with Picric Acid

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  • Letters

    Correspondents - July 17, 1858

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