Volume 27, Issue 26
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Features
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
Progress of the Hoosic Tunnel
The Fire at the Fifth Avenue Hotel
Science Record for 1873
Retirement of Judge Nelson
The Centennial of 1876
Mallet's Method for Oxygen
The Application of Chemical Fertilizers to Horticulture
Electricity
Scientific and Practical Information
Putt's Wash Boiler
Improved Safe Protector
Improved Railroad Spike
Dayton's Gas Carburetter
Government Telegraphy
Amateur's Jig Saw
Answers to Corespondents
Decisions of the Courts
Communications Received
Patent Office Decisions
Recent American and Foreign Patents
Value of Patents and How to Obtain Them
Practical Hints to Inventors