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Features

Artesian Wells

Anhydrous Steam—Stame

Railroads in Russia

Mobile and Girard Railroad

Length of American Railroads

Chapman's Spiral Paddle Wheel

Hair of Different Races of Men

Foreign Correspondence

Working Sail by a Steam Engine

Illuminated Clocks

Walnut Leaves in the Treatment of Disease

Amoskeag Machine Shop

English and American Railroads

Electricity, Metals and Water

American Association for the Advancement of Science

A Curiosity

Magnificent Present

Improvement in Presses

Death of Commodore Barron

Woodworth Patent Case

Removals at Washington

Paine's Light

Reform of the English Patent Laws

Light and Heavy Locomotives

American Iron Houses

The London Well Waters—Their Action on Lead

Quick Passages. Lieut. Maury's Charts

List of Patent Claims

Practical Remarks on Illuminating Gas

New Edition of the Patent Laws

Locks

Skins for Door Mats

New Steam Navigation Act

Flax in Ireland

Destruction of the Egyptian Pyramids and Temples

Telegraph Speed

Mechanics

Hydraulics

Sale of Prof. Websters Apparatus and Chemicals

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May 03, 1851

Scientific American Space & Physics