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Railroad Fares

Brown's Force Pump

Statistics of Strikes in Britain

Railroad Accidents

Hatching Salmon

Curious Effect of Trying a Cannon

Poisonous Adulterations in Cider

A Tunnel at Albany

Cause of the Burning of the Amazon

Hobb's Locks

Geology of the Lead Mines.--No. 2

A Good Water Wheel

Academy of Sciences in Paris

Wreck of the U.S. Steam-Frigate Missouri, at Gibraltar

Copyrights and Patents

Dr. Kane's Lectures

Woodworth Patent Monopoly

Our Advertisements

Brick Machines

Statistics of Coffee

New Method of Preparing Negative Photographic Paper

Recent Foreign Inventions

Cut-Off Valve

Tubular Tunnel

Letter Printing Press—The Typographer

Finlay's Patent Differential Governor

Rifled Cannon

Improved Ships' Hank

Velocity of Light

Lyman's Boiler Gauge

To Subscribers—Our Half Volume

Parker's Water Wheel

Monuments to Great Men

List of Patent Claims

World Makers

An Important Paragraph

New Edition of the Patent Laws

New Arrangement

Yankee Enterprise—Transporting Timber from the Mountains

Steamship Baltic

Manufacture of Combs

On Boilers—No 15



Cure for Toothache

Extinguishing of Fires

The Orinoco


  • From the Editor

    To Correspondents

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