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Features

Patent Circular Saw without a Shaft

Improvement in Boot Trees

Plastic Materials for Forming Various Objects

Tests for Guano

A Brother Mechanic to his Brethren

Heliochromy

Hot Air and Steam

The Tunnelling Machine

Basket Willows

United States Survey

Burning Fluid and the Newell Lamp

Labor Law in Rhode Island

Machinery and Tools as they are.—Saws and Saw Mills

Sperm Oil

The French Navy

Hot-Air Furnace

Another Improved Car Seat

Stone Dressing Machine

Improved Cider Mill

Another Specimen Letter

Improved Railroad Switch

Improved Spike Machine

Corn Grinding Mill

Burning Fluid Lamp Controversy

The Commissioner of Patents

Hot Air and Steam—The Ericsson Engine

Novel Engineering Project—A Marine Railway One and a Quarter Miles in Length

Destruction of Moose and Deer

The Great Silk Workshop

Ingenious Invention—Ship's Indicator

Motive Power Without Fuel

Riddle's Report of the Great Exhibition

Manufacture of Boiler Iron

Novel Manufactory

Francis' Life-Boat Manufactory

Testimonial to Lient. Maury

Mechanics

Manufacturers and Inventors

Railroad and Engine—A Memorial

Natural Gas

The Ericsson Hot Air Ship

Wells, Pumps, &c

A Want Supplied

Departments

  • From the Editor

    To Correspondents

  • Recommended

    A Chapter of Suggestions, &c

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Why Do Facts Fail?

Why Do Facts Fail?

Deconstructing Denial