Features
New Products in the Glass Industry
The Erie Canal Muddle
Improved Process of Duplicating Phonograph Records
Application of the Coherer to Detection of Storms
Local Conditions Favorable to the Cotton Industry of the South
A Moving Grazing Pen
Stern-Wheel Steamers on the Mississippi River
Electrical Gyroscopes
The Present State of X-Ray Work
Construction of the New East River Bridge
Modern British Ordnance
Making Large Plaster Casts
A Machine for Cleaning Blackboard Erasers
A Novel Haystacker and Derrick
A Pen with Increased Ink Capacity
A Completely Inclosed Arc Lamp of Small Size
Business and Personal Wants
Departments
- Departments
Science Notes - April 20, 1901
Correspondence - April 20, 1901
Recently Patented Inventions - April 20, 1901
Index of Inventions - April 20, 1901
Notes and Queries - April 20, 1901
Patents - April 20, 1901
