Scientific American Magazine
Volume 70, Issue 14You are currently logged out. Please sign in to download the issue PDF.
Features
The Annual Report of the Commissioner of Patents for the Year 1893
Prevention Better than Cure
The Baltimore Traction Company
An Improved Wrench
A Heating Gas Burner
Steam Tramcars with Serpollet's Boiler
Reid's "Lightning" Brace
Friedburg's Bunsen Burner
Improved Journal Box Supports
Carborundum
A Practical Steam Stamp Mill
Substitute for Pipe Tongs
Very High Windmill
Manufacture of Smoking Tobacco
To Inventors - April 7, 1894
Departments
Correspondence - April 7, 1894
Recently Patented Inventions - April 7, 1894
New Books and Publications - April 7, 1894
Business and Personal - April 7, 1894
Index of Inventions - April 7, 1894
Notes and Queries - April 7, 1894
