Scientific American Magazine
Volume 23, Issue 9You are currently logged out. Please sign in to download the issue PDF.
Features
Sternberg's Electro-Magnetic Regulator for Dampers and Valves, Hirn's Telodynamic Cable, and more
On the Science of Sleep and Dreams
Mountain Locomotive
The Migratory Locusts and their American Cousins
The Science of Going to War--How Prussia Is Superior to France
The True Theory of Flying
Diamond Cutting in Amsterdam
Melendy's Improved Combined Key Ring and Door Fastener with Compensator
Pen Stammering
Who make Mistakes?
Effect of Association upon Mental Development
The Uses of Sulphurous Acid
The Use of Torpedoes for Coast Defense
Radiation of Heat
Death of Professor Palmstedt
The Commissioner Suspends a Patent Agent for Gross Misconduct
The Present European War
Scientific Intelligence- August 27, 1870
American Association for the Advancement of Science
Answers to Correspondents- August 27, 1870
Recent American and Foreign Patents- August 27, 1870
Official List of Patents- August 27, 1870
Applications for the Extension of Patents- August 27, 1870
Departments
Correspondence- August 27, 1870
Business and Personal- August 27, 1870
New Books and Publications- August 27, 1870
