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Great Heat

Improved Dovetail and Tenon Cutter

Bessemer and Gun-Metal

On Hardening Steel

Duration of Life Among the Jews

New York Water

Milk Which Does Not Yield Butter, and the Means to Remedy It

Lacassagne & Thiers' Dry Galvanic Battery

The Magneto-Electric Disk Telegraph

Our Canals and Railroads

American Paper-Hangings

American Association for the Advancement of Science

Performances of Locomotives

Qualities of Belting for Machinery

Interesting Correspondence

Tool-Holders for Lathes

Minerals in South-Eastern Missouri

How to Fatten Chickens

A Column of Interesting Varieties

Wear of Boilers

Rain at Different Elevations

California Coal

Improved Wind and Water Wheel

Improved Scroll-Sawing Machine

The Armstrong Gun--Forging Large Masses of Iron and Steel

A Great Water-Power in Market

What is Science ?

Agricultural Fairs for 1859

Western Railroads

The Fathers of Philosophy--IX

Patent Claims

Issued from the United States Patent office

Foreign Summary--Metals and Markets


Improved Lubricating Device

Improvement in Key-Boards

Iron Railroad Bridges


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August 27, 1859

20% Sitewide for President's Day