Scientific American Magazine
Volume 15, Issue 21You are currently logged out. Please sign in to download the issue PDF.
Features
Improved Patent Barrel Machinery
Railway Engineering in London
Miscellaneous Summary
Machine Printing of Calico
The Most Useful of Trees
Signals on English Railway Trains
Fay's Improved Saw-Horse
Copartnership of Capital and Labor
Prevention of Boiler Explosions
Patent Claims
Departments
Correspondence
Notes and Queries
New Inventions
