Features
The Geysers of California
Asphalt Pavement in Paris
The Expense of a Hero
Science Familiarly Illustrated
Vogelmann's Combined Step and Extension Ladder
Editorial Summary
Recent American and Foreign Patents
Answers to Correspondents
Extension Notices
New Publications
Stierle's Improved Globe Valve
Producing a Vacuum in Guns Before Firing
Jarecki's Lubricating Cup
Robinson's Corn Husking Shield
Engines and Boilers--Hydrogen in Boilers, Burning Boilers, Setting Boilers
The Coal Production of England
Fair of the American Institute
The East River Bridge
Patent and Claims
Editorial Correspondence
Pending Applications for Reissues
Departments
- Departments
Correspondence
Business and Personal
