Scientific American Magazine
Volume 27, Issue 9You are currently logged out. Please sign in to download the issue PDF.
Features
Improved Napping Machine
Recipes and Experiments - August 31, 1872
Mold For Casting and Chilling Sleigh Shoes
How to Make a Cheap Hydrogen Lamp
Law's Shuttle Binder
Manufacture of Pins
Goodridge's Automatic Lamp Extinguisher
Spring Power for Sewing Machines
Security against Thieves
Tunnel under the Harlem River, New York
William Bridges Adams
The International Exposition at Vienna, 1873
The International Statistical Congress
Terrestrial Magnetism
A New Suspension Bridge
Old and New Steam Engines
A New Canal Steamer
Diamonds in Arizona
Why It Has Been So Hot
The Electrical Railway Alarm
Improvements that are much Needed
The Coolest Place in New York
The New Railways across the Continent
Promotions at the Patent Office
The Meteors of August Tenth
Letter from Professor R. H. Thurston - August 31, 1872
Scientific and Practical Information - August 31, 1872
Recent American and Foreign Patents - August 31, 1872
New Patent Law in Canada - August 31, 1872
Departments
Correspondence - August 31, 1872
New Books and Publications - August 31, 1872
Notes and Queries - August 31, 1872
Business and Personal - August 31, 1872
Answers to Correspondents - August 31, 1872
Index of Inventions - August 31, 1872
