Scientific American Magazine
Volume 63, Issue 12You are currently logged out. Please sign in to download the issue PDF.
Features
Recent Improvements in the Pneumatic Dynamite Gun
The Smoke Nuisance
Improved Steam Boiler
An Improved Lawn Cleaner
A Device for Manipulating Doors and Windows
An Improved Fumigator
An Eraser for Use on Blackboards
An Improved Mechanical Movement
An Improved Safety Indicator for Elevators
A Register and Recorder for Revolving Shafts
An Improved Lifting Truss Girder
Daisies and Thistles Proscribed by Law
The New German Armored War Ship Siegfried
Photographic Notes- September 20, 1890
Departments
Correspondence- September 20, 1890
Index of Inventions- September 20, 1890
Recently Patented Inventions- September 20, 1890
Business and Personal- September 20, 1890
To Inventors- September 20, 1890
Notes & Queries- September 20, 1890
