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Features

Improvement in Galvanic Batteries, Improved Valve for Steam Engines

List of Patent Claims

Coal of the Ohio Valley

Report on Steam Boilers--Scales

European Inventions, Discoveries, &C

Southern Copper Ore

Variation of the Magnetic Needle

Bisulphuret of Carbon as a Motive Agent

Great Trial of Mowing Machines

A New Propeller

Horace Greeley and His Accuser in Paris

The Ericsson

A Schooner Heating the Steamers

Apparatus for Testing the Strength of Materials

Wire Dish Covers

New Artificial Stone

Third Exhibition of the Kentucky Mechanics' Institute

Wood Bearings for Screw Shafts

The Length of Human Life

An American Mechanic in Charge of the British Armory

Education and the Laws of Health

Tribute of Praise to the Commissioner of Patents

Great Traveling

Paris Exhibition, &C

Sea Island Cotton in Texas

The Olive Tree in the South

The Reptiles of Texas

Statistics of Lowell Manufacture

The Usefulness of Toads

Important Items

The Art of Dyeing--No. 27

China Sea Grass

Yeast for Putrid Sore Throat

Treatment of Tomatoes

Application of Essence of Coal as a Substitute for Oil of Turpentine

Mechanics

Inventors, and Manufacturers

Departments

  • Letters

    To Correspondents

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June 30, 1855

Beyond XX and XY

Biology. Identity. Equality.