Scientific American Magazine
Volume 36, Issue 23You are currently logged out. Please sign in to download the issue PDF.
Features
The Speaking Telephone in New York
Wiggins' Improved Relief and Safety Stop Valve
The South Street Bridge, Philadelphia, PA
Safety Valve Tests
Sewage Irrigation on a Small Scale
Prevalent Manias
Improved Machine for Stamping Leather Goods
A New Axe
A New Injector for Steam Boilers
Practical Mechanism
Improved Railroad Joint and Nut Lock
Mershon's Improved Rock Drill
A New Fumigator
A Beautiful Fern
A Snake-Eating Frog
Decisions of the Courts
New York Academy of Sciences
New Miscellaneous Inventions
Recent American and Foreign Patents
New Woodworking and House and Carriage Building Inventions
New Mechanical and Engineering Inventions
Communications Received
Departments
New Books and Publications
Notes and Queries
Business and Personal
Index of Inventions
Patents
