Scientific American Magazine
Volume 65, Issue 11You are currently logged out. Please sign in to download the issue PDF.
Features
A New Type of Folding Bridge
An Official Geological Organization
Testing of Our Great Guns
The American Chemical Society
Condition of Workingmen in Michigan
A Device for Thawing Ice from Pipes
An Improvement in Flush Hinges
A Device for Cleaning Wood Saws
An Improved Receiving Telephone
An Improved Car Coupling
A Powerful Steam Crane
Jupiter
The Kenwood Physical Observatory
New Toboggan Slide for Bathers
Departments
Correspondence- September 12, 1891
Recently Patented Inventions- September 12, 1891
Notes and Queries- September 12, 1891
Business and Personal- September 12, 1891
Index of Inventions- September 12, 1891
To Inventors- September 12, 1891
