Features
Temporary Deafness
An Unwise Physician
Groove Track Pavement
The Electric Lights on Broadway, New York
The Expansion of Steam
Brush Holder
Engineering Inventions - January 8, 1881
Apparatus for Demonstrating Mechanical Principles
Tidal Outlets for Sewers
Agricultural Inventions - January 8, 1881
Jenkins' Packing and Valves
The Albion Coal Mines
American Industries--No. 64
Improved Hand and Bench Vise
Improved Awning and Ventilator
The Sword Bill Humming Bird*
A Strange Parasitic Fish
Miscellaneous Inventions - January 8, 1881
Departments
- Departments
Correspondence - January 8, 1881
New Inventions - January 8, 1881
Business and Personal - January 8, 1881
Index of Inventions - January 8, 1881
Notes and Queries - January 8, 1881
New Books and Publications - January 8, 1881
