Features
A Year's Progress
Stamps for Trade Marks
Erastus Brigham Bigelow
The Future of Africa
Remarkable Fly Wheel Explosion
The Scientific American for 1880
Miscellaneous Inventions
A New Telephone
The Duplex Air Compressor
The Climax Safety Hammerless Gun
Boat-Lowering and Detaching Apparatus
Agricultural Inventions
American Industries.--No. 27
Mechanical Inventions
New Car Step
New Stone-Dressing Tool
The Sea Serpent Accounted for
Departments
- Departments
Business and Personal
Notes and Queries
Index of Inventions
Patents
