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Asphaltum Pavements

To Make Collodion

Blue Varnish

Martin's Self-Weighing Cart

Steamship Burned--Combustion of Oil Waste

List of Patent Claims

Important Notice

A Search for Readers of Scientific Works

The Compass on Iron ships

Patent Case--Heavy Damages

Heating the Feed Water of Steam Engines

Terrestrial Magnetism

Improvement in Molding and Shaping Metals

New Improvement Wanted for Saw Mills

Increasing the Density of Colors

Patent Extension


The Woodworth Ogre Again--Lobbyists

Award of Prizes

Important From Washington--Another New Patent Bill Before Congress

Finale of the Woodworth Patent

Liquid Stone

Preservin Timber

Improvement in Constructing and Working of Locomotives

Bleaching Linen and Cotton


Inventors, and Manufacturers


  • Letters


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January 03, 1857

Of Shamrocks and Science

Happy St. Patrick’s Day