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Deviation of the Compass in Iron Ships

Improved Hot-Air Furnace

The Atlantic Telegraph--Meeting of the New Company

Gordon's Bit Fastening

Polytechnic Association of the American Institute

Periodic Phenomena

Improved Center-Board

The Currency Delusion

Miscellaneous Summary

Application of Electricity to Paddle Engines

The Iron Clad Monadnock

Projectiles Used During the Crimean War

Electricity From Combing the Hair

A Crystalline Car Axle

The Cascade, of Light in Boston, Mass

Strength of Ice

The Cigar Steamer


Lottery and Gift Swindles

Cold Cast Iron on Melted Cast Iron

A Sawyer Answered

A Magnetic Safe

To Prevent the Loss of Aroma in Roasting Coffee

Ready Mode of Amalgamating Zinc Plates

Improved Sawing Machine

Thomas's Railway Check

Simple Process for Silvering

The English Iron Clads

Power Required to Drive Machinery

Petroleum as Fuel for Steam Engines to Be Tested

New Publications

Zinc Plates for Preserving Boilers From Corrosion

A Brilliant Series of Experiments

Patent Claims

Issued From the U. S. Patent Office

Stiles's Foot Press

Electricity in Deep Sea Sounding

Improved Sorghum Evaporator


Inventors, Manufacturers


  • Departments

    Notes and Queries

  • Correspondence

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April 14, 1866

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