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Features

Valuable Discovery

Rusty Iron

Gilliland's Dioptric Crystal Lenses

Peruvian Guano

Unequalled Sailing—Short Passage

A Ten Thousand Dollar Prize

Copper and Diamonds in North Carolina

Improvements in Saw Mills

Red Cedar for Hedges

Another Awful Railroad Accident

The Largest Gypsum Field in The World

Barrow's Propeller

Breaking up of an Iceberg

New Safety Whiffletrees for Carriages

Carbonic Acid Gas a Molive Power

Heat and Cold

Storm Pointer

Accident to Professer Liebig

Velocity of Rivers

Sea Bathing in Paris

New Annunciator for Hotels

New Process for Making Daguerreotype Plates

Corn and Seed Planter

New Process for Obtaining Carburetted Hydrogen Gas from Tar

New Rail for Railroads

New Reversable Stove Pipe Collar

Camp's Improved Chimney Ventilator

Whitney's Repeating Pistol

Lightning Conductors

The Morality of Public Carriers

Where is the Ericsson?

Recent Foreign Inventions Improved Treatment of Tin Ores

Strange Steamer

Faraday on Static Electricity

List of Patent Claims

Ship Building on the Clyde

Important Invention or Discovery

Testing of Lubricators in the Crystal Palace

Welding Conical Iron Tubes

Guano and Phosphate of Lime

Mechanics

Departments

  • From the Editor

    To Correspondents

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Why Do Facts Fail?

Why Do Facts Fail?

Deconstructing Denial