Features
Concerning a Telescope of Unlimited Power
Better Times
On the Purchase of Patents
A Word to Our Subscribers
Eloquence and Patent Fuel
Scientific and Practical Information - December 13, 1873
The Protection of Plants by Artificial Clouds
The Suppressed Member
The Baby Hippopotamus' Birthday
The Iron Works at Merthyr Tyndvil, South Wales
The Oreodoxa Regia Palm
Flax and its Preparation
Completion of the Hoosac Tunnel
Improvements in the Ventilation of the United States Senate Chamber
The Uses of Nickel
The Savings of Science
Apparatus for Filtering and Rectifying Spirits
Combined Snow and Earth Shovel and Plow
Dunning's Improved Pipe Coupling
The Brighton Aquarium
The Cocuyo
The Germ Theory and its Relations to Hygiene
A Practical System for the Sale of Patents
Decisions of the Courts - December 13, 1873
Recent American and Foreign Patents - December 13, 1873
Answers to Correspondents - December 13, 1873
Communications Received - December 13, 1873
Departments
- Letters
Correspondence - December 13, 1873
- Departments
Business and Personal - December 13, 1873
Index of Inventions - December 13, 1873
