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Improved Knife Cleaner

Prof. Rankine on the Density of Steam

Polytechnic Association of the American Institute

Recent American Patents

Improved Method of Staking and Improvment in Curing Hops

Turning Tools

How Milk is Condensed

Anchor Ice

Cadwell's Phosphate Distributer

Defective Iron Castings

Publishing Information of Government Works

Grove on Heat

Petroleum and Asphaltum

Polishing Linen Thread

Patent Claims

Beecher's Veneer Fruit Basket


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  • Patents

  • Notes and Queries

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