Scientific American Magazine
Volume 67, Issue 7You are currently logged out. Please sign in to download the issue PDF.
Features
Christopher Columbus
The Approaching Expiration of the Bell Telephone Patent
An Improved Hanger
Hamilton's Ventilating Blower
The Utilization of Water Power
Copying Camera Holder
An Electro-Photo-Detective Thief Catcher
New Government Lightships
Bushmen Killing a Lion
Experiments with Water Jets
Departments
Correspondence- August 13, 1892
Business and Personal- August 13, 1892
Recently Patented Inventions- August 13, 1892
Notes & Queries- August 13, 1892
To Inventors- August 13, 1892
Index of Inventions- August 13, 1892
