Scientific American Magazine
Volume 15, Issue 20You are currently logged out. Please sign in to download the issue PDF.
Features
Miscellaneous Summary
Improved Rudder
Charming by Serpents
Engraving for Calico Printing
Polytechnic Association of the American Institute
Staub's Improved Chuck Jaw
The November Meteors
Extension Notices
Patent Office Decision--Cartridges
Nitro-Glycerin as a Substitute for Gun-Powder
Corbin's Patent Bag Holder
Heald's Float Valve
Transportation of Fresh Meats to Market
Ventilation--Its Necessity and Neglect
Patent Claims
Departments
Notes and Queries
New Inventions
Correspondence
