Features
Improved Coffee and Grain Dryer, Solvent for Coralline
From the Atlantic to the Pacific
Gunpowder Pressure Gages
On Ice, Water, Vapor, and Air
New Device for Railway Signals
Vertical Balance Galvanometer
Corks and Cork Cutting
The New Railroad Bridge at Albany
Durand's Burette
Bunker's Metal Cutter
Dynamic Refrigerator
Meteorites, their Origin
The Eight Hour Strike in New York
The Pneumatic Railway Brake and other Applications of the Pneumatic System
Iron Ship Building in Wilmington
American Inventions in Europe
Death of James Gordon Bennett
How Paper Collars are Made
The Sign Boards of New York
Scientific and Practical Information - June 15, 1872
Recent American and Foreign Patents - June 15, 1872
Departments
- From the Editor
Answers to Correspondents - June 15, 1872
- Letters
Correspondence - June 15, 1872
- Departments
Notes and Queries - June 15, 1872
Business and Personal - June 15, 1872
Index of Inventions - June 15, 1872
