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The Art of Tanning

New Steam Excavator

Drainage of Cities for Manures

Discoveries and Inventions Abroad

Testimonial From an Inventor

Magnificent Building Scheme --Practical Plan for Reducing Rents

Fresh Air in Railroad Cars

Boiler Explosion--Rotten Iron

Copper Mines and Mining in Arizona

Results of Practical Schooling

A Column of Varieties

History of Iron Ships

Dissolving India-Rubber

Coating Electrotype Plates with Iron

Improved Shingle Machine

Hatch's Bed Bottom

Morocco Leather Dressing

Lighting Manufactories by Water Power

Agricultural Improvements

Protracting Trigonometer

Improved Water Wheel

Cutting Piles Under Water--an Ingenious Apparatus

Improved Combination Auger

Patent Claims

Issued from the United States Patent Office

Improved Harvester

Important to Inventors,--New Arrangement



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