Features
Chemical Experiments for Youthful Readers
State Education and the Labor Question
Removal of Oil From Wool
Albert's Method of Securing Flag Halyards
Wrought Iron and Steel Posts
The Phosphoric Light
Variance between Hydrostatic and Steam Pressure in Boilers
Ice Harvesting on the Hudson
Drying by Cold
The Education of the Deaf and Dumb
What Shall be Done with the Models at the Patent Office?
Production of Steam in Boilers
The Navy of the Future
Imperfection in Lamps, Wicks, Fluids
Religion and Science - February 10, 1872
Scientific and Practical Information - February 10, 1872
Editorial Summary - February 10, 1872
A New Scientific Work
Will You Favor Us?
Recent American and Foreign Patents
How Shall I Introduce My Invention?
Departments
- From the Editor
To our Readers - February 10, 1872
Answers to Correspondents - February 10, 1872
- Letters
Correspondence - February 10, 1872
- Recommended
New Books and Publications - February 10, 1872
- Departments
Notes and Queries - February 10, 1872
Business and Personal - February 10, 1872
Index of Inventions
