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Features

Drawing a Magic Circle

Turkish Cement

Morley's Patent Railroad Track Chair

Henwood's Lubricator

Hard Cement

List of Patent Claims

Inks and the Manufacture of Paper

Notes on Science and Foreign Inventions

Manufacture of Car Axles and Iron Castings

Iron Water Tanks

Excavating and Ditching Machine.

Using Machines Under an Extended Patent

Nichols' Changeable Plane

Leather and Moleskin

A Good Throw

Sardines

Proportions of Machinery

Machine for Splitting Logs

Ivory--A Substitute Wanted

Death of Dr. Scoresby

California Raisins

Car Wheels

Water and Its Phenomena

Mechanics

Inventors, and Manufacturers

The Steamship Great Eastern

Departments

  • Letters

    Correspondents

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April 25, 1857

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