Scientific American Magazine
Volume 27, Issue 11You are currently logged out. Please sign in to download the issue PDF.
Features
Improved Steam Trap
Writing Fluids
Adjustable Plow
Double Turbine Water Wheel
Improved Shops
Paper Boats—How Made
Simple Apparatus for Out-Door Sketching
The Carpenter Bee
Scientific and Practical Information - September 14, 1872
Railway Rail Joint
Albany Steam Trap
Terrestrial Magnetism - September 14, 1872
The Star Sirius
Substances Acting Mechanically to Prevent the formation of Scale in Boilers
The Newark Industrial Exposition
Letter from Professor R. H. Thurston - September 14, 1872
Renewed Activity at the Patent Officer—Re Organization and New Classification—Appointment and Promotions
An Astronomical Robbery
Recent American and Foreign Patents - September 14, 1872
Foreign Patents—A Hint to Patentees
New Patent Law in Canada - September 14, 1872
Departments
Correspondence - September 14, 1872
Business and Personal - September 14, 1872
Answers to Correspondents - September 14, 1872
Notes and Queries - September 14, 1872
Index of Inventions - September 14, 1872
New Books and Publications - September 14, 1872
