Features
Is Hydrogen Gas a Metal?
“Modern Engineering”—By the Hon. Wm. J. Mcalpine
Velocipede Notes
Editorial Summary
Greene's Portable Engine, Union Check Valve, and Lubricator
Webb's Patent Adder and Tally Board
“Waste” and “Economy” of Fuel
Examination of Applications for Patents—The Two Systems Compared
Land and Water—Are Earthquakes Land Makers?
The Wickedness of Waste.—Value of Bones
Vegetable Oils Used in Painting
Importance of Accuracy in the Use of Mechanical and Scientific Terms
Hollow vs. Solid Shafting
Bulletin of the National Association of Wool Manufacturers
Conserving of Fruit
Recent American and Foreign Patents
Manufacturing, Mining, and Railroad Items
New Publications
The Gard Brick Machine
Official List of Patents
Answers to Correspondents
European Patents
Patent Offices
Departments
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Correspondence
Business and Personal
