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Features

Cleveland and Wellsville Railroad

Ortlieb's Out-Off for Steam Engines

Whitney's Railroad

The Extension of Patents by Congress

Improved Self-Sharpening Grindstone

Galvanic Batteries

Law of Patents

Fat People

A Great Drill

Lake Superior Rising

Copper Tube Manufactory

Marine Architecture--Yachts, America, England

Culture of the Olive

To Stop Bleeding from the Cavity of an Extracted Tooth

Parker and Re-Action Water Wheels

Transporting Timber

Improvement in Head and Tail Block

Improved Furnace for Warming Dwellings

Discovery in Sculpture

The Telegraph Superseded

Improvements in Spinning

Conger's Turbine

London Steamboats Picking Up

Improved Knife for Cutting Hay

Another Great Rifle

A High Bridge

Steam Fire Engine

Corns, Shoes, and Proper Measures

Maryland Mechanics' Institute

Preserved Meats and Meat Biscuit

Views Respecting the Source of Light

Croton Metallic Paint

The American Institute and Riddle's Fair

Substitute for Pen and Ink

An Invention Wanted--Chance for Electric Engineers

Things to be Invented

The Woodworth Patent--Petitions Against it

Hollow Bricks, Fire-Proof Buildings, &,C

List of Patent Claims

Cough Drops

Remarkable Perfection of Instruments

Patent Laws, and Guide to Inventors

To Correspondents

New Arrangement

An Important Paragraph

A Meteoric Engine

Water and Salts-Heating by Water

Unrolling the Mummy of a Bishop

Forty Miles an Hour

Cotton in Russia

On Boilers.--No. 17

Expedition to Japan

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    March 20, 1852

    Complex Causes. Alternative Solutions.