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A Light Steam Fire-Engine

Velocity of Electricity

The Obstruction to the Navigation of Rivers Caused by the Piers of Bridges

By J. W. Sprague

The Sheathing of Ships

Adulteration of Wines

The Presence of Silver in the Waters of the Sea

Steam Fire-Engines

Can Particles of Matter be Inhaled into the Lungs?

Belts for Driving Machinery

Melhuish's Metal Camera

True Philosophy of Butter-Making

Liabilities of Companies for Accidents

Saving Nitrate of Silver

Patent Hemmer

Linseed Oil and Oil-Cake

Iron Combination Beams for Buildings

Save the Sawdust!

A Column of Varieties

The Pemberton Mill

Polytechnic Association of the American Institute

Applications for the Extension of Patents

Improved Stave-Jointer

Machine for Dressing Rived Staves

Agricultural Science--Top Dressings Blanching Vegetables

Patent Extensions--Curious Paragraph--Commissioner Thomas

Great Guns

Foreign News and Markets - April 7, 1860

Weekly Summary of Inventions - April 7, 1860

Interesting Proceedings in Congress


New York Markets

Patent Claims

Issued from the United States Patent Office

Another Awful Calamity--Ten Persons Burned to Death!

Fire-Escapes--English and American

Improved Artificial Leg


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    Notes and Queries - April 7, 1860

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April 07, 1860