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Steam Valves

Iron Batteries

Scientific Memoranda

Salt in Illinois

Philadelphia Gas Works

Gas in Nantucket

An Unprofitable River

Steam Fire Engine

The Art of Dyeing--No. 1

Temperance on Railways

Spiking Guns

Hardening Steel

Visibility of the Planet Venus in the Day time


Pendulums and Balloons

New York Crystal Palace--Experience of an Exhibitor

Lead Mine in the Heart of a Town

Improved Tuyere

Sausage Stuffers

Tip-Top Blacking

Truss for the Radical Cure of Rupture

Sash Fastening

Presents for the Holidays

Ox Yokes

Mortising Chisel

Globular Journal for Cars

Felting Hat Bodies

Driving Reciprocating Saws

Double-Acting Force Pump

Cleaning the Flues of Stoves

Car Ventilator

Shoal Alarm for Ships

Self-Acting Fire Damper for Chimneys

Sweeping Streets by Machinery

Curious Clause in the New Patent Bill

Blasting Rocks

The Beneficial Effects of Patent Laws

Suspending the Law of Gravitation

Water in Flour

Tractive Power of Locomotive

Roring Artesian Wells

List of Patent Claims

Important Items

Acorns Kill Bullocks

Consumption of Flour in London

Ether and Chloroform

History of Reaping Machines--No. 13


Inventors, and Manufacturers

Prizes next Week

Salt in California


Winter Colds


  • From the Editor

    To Correspondents

  • Recommended

    Lectures and Good Reading

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December 30, 1854

20% Sitewide for President's Day