Volume 20, Issue 11
You are currently logged out. Please sign in to download the issue PDF.
Features
Improvement in Tweer Irons for Forges, Adjustable Lathe Tool Post
Manufacture of Paraffine
The Topliff and Ely Adjustable Velocipede
“Waste” and “Economy” of Fuel
Aluminum
Exlposive Compounds for Engineering Purposes
Geisler's Patent Baby Walker
Panama Hats—What They are Made From, and How
Applications of the Giffard Injector
Why is Mechanical Labor Objectionable?
The Patent Office
Is a Flying Machine a Mechanical Possibility?
Art of Coloring Marble
Velocipede Notes
About Earthquakes
Editorial Summary
Manufacturing, Mining, and Railroad Items
Recent American and Foreign Patents
Answers to Correspondents
Official List of Patents
Issued by the United States Patent Office