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Improvement in Power Hammers, Novelties in Paris

Will the Coming Man Drink Wine?

The Arts and Manufactures of Savages

More about Submarine Exploration

Polytechnic College of Pennsylvania

Stone & Hebbert's Patent Tool for Fitting Hub-Bands

Physical Strength

Answers to Correspondents

Recent American and Foreign patents

Extension Notices


Facts and Conjectures

Sweetland's Patent Rotary Shelf Refrigerator

Mining and Tunneling by Machinery

The American Science Association

Progress of Submarine Telegraphy

Some Things a Mechanic Should Know

Patents and Claims


  • Departments


  • Business and Personal

  • Patents

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