Features
The Legal Status of Railroad Employes
Position of the Planets in April
A Recent Improvement in Buckles
An Independent Lathe Chuck
An Improved Camera Lucida
An Improved Car Axle Box
A Tellurian for the Home and School
The Oldest Musical Instruments
An Improved Harrow
Improved Rubber Toys
An Electric Heater for Cars
The Telautograph
Factory Driving by Electricity
The New Steel Steamer El Rio
Dust and Sand Figures on Membranes
To Inventors - April 1, 1893
Departments
- Letters
Correspondence - April 1, 1893
- Recommended
New Books and Publications - April 1, 1893
- Departments
Business and Personal - April 1, 1893
Recently Patented Inventions - April 1, 1893
Index of Inventions - April 1, 1893
