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The Brooklyn Pier of the East River Bridge

The End of Another Year

The Planet Jupiter as Revealed by the Modern Spectroscope, Photometer, and Telescope

Proposed Change in the Patent Law

Tidal Water Power; A New and Useful Suggestion

American Inventions in Europe

Retirement of Judge Nelson

Science Record for 1873

The Fire at the Fifth Avenue Hotel

Progress of the Hoosic Tunnel

The Centennial of 1876

Mallet's Method for Oxygen

The Application of Chemical Fertilizers to Horticulture


Scientific and Practical Information

Improved Safe Protector

Putt's Wash Boiler

Government Telegraphy

Improved Railroad Spike

Amateur's Jig Saw

Dayton's Gas Carburetter

Decisions of the Courts

Answers to Corespondents

Patent Office Decisions

Communications Received

Recent American and Foreign Patents

Value of Patents and How to Obtain Them

Practical Hints to Inventors


  • Departments


  • Business and Personal

  • Index of Inventions

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