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Plass' Patent Safety Band-Saw

Improvement in Shingle Machines, The Dangers of Ballooning

The Early American Improvements in Printing Presses

A Siphon for Draining a Tunnel

Suspension Bridge over the Missouri River

Restoration of Persons Apparently Dead from Drowning

Premature Burial—Its Probabilities

The Removal of the Tariff on Coal

The Solar Eclipse

A Good Piece of Engineering

The Law of Hydrostatic Pressure

The Albany and Susquehanna Railroad

The Relation of the Diameters of Gearing to Friction

The Proposed Tunnel Under the British Channel

The Light Hydrocarbons

Manufacturing, Mining, and Railroad Items

Answers to Correspondents

Recent American and Foreign Patents

Official List of Patents

Issued by the United States Patent Office

New Publications


  • Departments


  • Business and Personal

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