Features
Aniline--Its History, Properties, and Preparation
Early History of an Inventor
Metric System
The Permeation of Organic and Other Fluids
Lenhart's Spring Fish-Hook
Science Familiarly Illustrated
Recent American and Foreign Patents
Manufacturing, Mining, and Railroad Items
Extension Notices
Answers to Correspondents
Wickersham's American Oil Feeder
Improved Condition of the Patent Office
Peculiarities of Machines--Their Individuality
Boiler Furnace Grates--They Should be Suited to the Coal
Official Report of Patents and Claim
Pending Applications for Reissues
Departments
- Departments
Correspondence
Business and Personal
