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Coffee Leaf as a Beverage

Saltpeter is King

Brine a Poison

Improvement in the Telegraph

The Gasconade Bridge Disaster

The Green Lakes of Onondaga

Explosion of a Locomotive

Floating Logs

Orange and Pink Color on Silk

Casting of the Horse for the Washington Monument

Yampert's Pump

Present to an Inventor

The Ignition Engine

A Pamphlet on Boiler Explosions

On the Purchasing of Machinery

Public Clocks

The Albany Observatory

The Climate for Consumptive Persons

Oscillating Locomotives--Lap of the Valve

Creative Power of a Mechanic

Marble Sawing Machine

Railroad Car Patent Case

Hays' Patent Lard Lamp

Seymour's Sewing Machine for Shoes

One and Two Cylinder Engines

Reform of Patent Laws.--Important Meeting of Inventors at Buffalo, N. Y

Rejected Models

Three Masted Schooners

British Association for the Advancement of Science.--No. 2

The Discovery of Making Shot

Value of Mechanics in Australia

Lead and Iron Pipes

Blackening for Foundries

Proposition to Convert the Ohio River into a Slack Water Canal

Alumina in Soapatone

Are the Position of Countries Changing ?


  • Letters

    To Correspondents

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