Scientific American Magazine
Volume 40, Issue 5You are currently logged out. Please sign in to download the issue PDF.
Features
A New Switch Pedal
The Voltaic Pencil
Engine of the Torpedo Vessel Destroyer
Some Patents that Section 11 would have Killed
Glucose Honey
A New Industry
A Vegetable Green for Confectioners
Haeckel on Evolution
The Laundries of New York
A Hint for an Invention
A Great Market for Our Cattle and Other Produce
The Demenge Engine and Boiler
A New Potato Digger
The Manufacture of Lard
American Mechanical Genius
Atmospheric Air and the Vacuum
The Porcupine
Improved Window Awning
Designs for Vases
To Inventors
Communications Received
Departments
Correspondence
Notes and Queries
Index of Inventions
Business and Personal
Patents
