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Features

Boone's Rope Machine

Archimedes and the Lever

Erratum

Mechanism of the Horse's Foot

Artificial Diamonds

Petition for Extension of a Patent--Fire Proof Safes

List of Patent Claims

A Swift Ship

Foreign Summary

History of Air Chambers on Pumps

The Use and Choosing of Spectacles

Adjustable Drop-Motion for Steam Valves

Improvement in Rudders of Vessels

New Pomp Boring Machine

Fogs, Fogs

Cultivated Mechanics

New Commissioner of Patents

Errors of the Press

Exhibition of the Metropolitan Mechanics Society, Washington, D. C.

Competition for Russian Work

Magnetic Communication for Individual Purposes

Report of the Commissioner of Patents for 1856

Rheumatism and Cider

Mechanics

Inventors, and Manufacturers

Separating Burrs From Wool

Improvement in Washing

To Render Textile Fabrics Water-Proof

Finishing Yarns

Pile Ointment

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February 28, 1857

Help Us Reforest the Mississippi River Valley