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Features

New Galvanic Power, for Propelling Ships

Improvement in Sawing Machinery

Steam Fire Engine

Notice--Water Wheels

The Fast Line

Combustion and Evaporating Power of Boilers

Aldehyde in the Distillation of Sugar

Marine Locomotives

Pure and Impure Gas

Decimal Coinage in England

Special Notice

Central Africa

Extension of the Telegraph System to Africa

Recent Foreign Inventions

A Curious Dining Hall

Apples without Seeds or Cores

List of Patent Claims

Ditching Machine

Improved Slitting Gauge

Railroad Switches

Improved Wrench

Feeding Printing Presses

Preparing Gold

Improved Lantern

National Secret Documents

Unalterable Bank Bills

Close of our Half Volume

Rejection of an Extension of a Patent

Composition of the Rings of Saturn

The Smithsonian Institute

Purifying Black Lead for Pencils

American Steamboats on the Amazon River

Calico Printing

American Wool

Scientific Darkness

American Coal Statistics

To Correspondents

The Barometer Outdone

Agriculture by Steam

Beverage Preparations

Greaves' Nut Protector

The Niger and its Tributaries

Bread Equal to Pound Cake

Hardening Cast Steel for Cutting

Shipbuilding in Sunderland, Eng., and New-York

Bronze for the Sheathing of Ships

Mechanics

Manufacturers and Inventors

Departments

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    March 11, 1854

    20% off for Memorial Day