Features
Indelible Ink
Production of Gold and Silver
The Manufacture of Cold-Drawn Steel Tubes
Kangaroo on a Tread Mill
Improved Forge Hammer
Unmalted and Malted Barley as Food for Stock
The Lenoir-Gas Engine
Polytechnic Association of the American Institute
To Recover Gold from Solutions
Tyler's Safety Switch
An Experiment with Clean Iron
Shaving with a Wooden Razor
The Cascade of Light
Air in Wine Tuns
English Ironclads
The Funnel of the “Bellerophon.”
A Perpetual Motion Humbug
Composition of Alloys
New Things in France
Curtis's carriage Wheel
Progress of Scientific Education
The Cholera
Rainey's Nursery Chair
A Paying Investment
Special Notices
Exhibition of a New Electro-Magnetic Motor
Explosion of a Petroleum Lamp
Supplemental Sheet
The Midland Steam Boiler Insurance Co
Notes on New Discoveries and New Applications of Science
A New Soda Process
New Publications
Cast Steel-Magnesian Crucibles
Patent-Office Decisions
An English Capitalist on Lock-Outs
Paper From Wood
Improvements in Gas Engines
Patent Claims
Issued from the U. S. Patent Office
To Our Readers
New Rates of Advertising
Mechanics
Inventors, Manufacturers
Improved Motion for Sewing Machines
Extension of Patents
Academy of Sciences
Hopkins's Water Cooler
Departments
- Departments
New Inventions
Correspondence
Notes and Queries