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Improved Seed Planter

Annual Report of the Commissioner of Patents

Landon's Mill-Stone Bush

The Vibrations of Atoms

Polytechnic Association of the American Institute

Breech-Loaders and the Bayonet

Winters' Card Rack

Sizes for Key Seats

Recent American Patents

The Cork!

Colburn's Bracket Lamp Chimney

Spirits of Turpentine

Bearing Surfaces

Tyndal on Boiler Explosions

Patent Claims and Patent Business

Holes in Furnace Doors

The Slip of Propelling Instruments

Will Sudden Relief from Pressure Cause Boiler Explosions?

Patents Granted for Seventeen Years!

To Our Readers

The Cheapest Mode of Introducing Inventions

Rates of Advertising

Valuable Work for Inventors Patentees and Manufacturers

Improved Evaporator, Plumbago Mine in Lower Canada


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May 28, 1864

20% Sitewide for President's Day