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Velocity of Electricity

A Light Steam Fire-Engine

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

By J. W. Sprague

The Sheathing of Ships

Steam Fire-Engines

Belts for Driving Machinery

Can Particles of Matter be Inhaled into the Lungs?

The Presence of Silver in the Waters of the Sea

Adulteration of Wines

Melhuish's Metal Camera

True Philosophy of Butter-Making

Liabilities of Companies for Accidents

Linseed Oil and Oil-Cake

Patent Hemmer

Saving Nitrate of Silver

Save the Sawdust!

Iron Combination Beams for Buildings

Applications for the Extension of Patents

A Column of Varieties

The Pemberton Mill

Polytechnic Association of the American Institute

Improved Stave-Jointer

Machine for Dressing Rived Staves

Great Guns

Patent Extensions--Curious Paragraph--Commissioner Thomas

Agricultural Science--Top Dressings Blanching Vegetables

Weekly Summary of Inventions - April 7, 1860

Interesting Proceedings in Congress

Foreign News and Markets - April 7, 1860


New York Markets

Patent Claims

Issued from the United States Patent Office

Another Awful Calamity--Ten Persons Burned to Death!

Improved Artificial Leg

Fire-Escapes--English and American


  • Departments

    Notes and Queries - April 7, 1860

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