Scientific American Magazine
Volume 65, Issue 3You are currently logged out. Please sign in to download the issue PDF.
Features
Diamond Cutting by Hand and Machine
The Commissionership of Patents
The Caldera Naval Fight
The Disposition of Mining Debris in California
Progress of the North River Tunnel
An Improved Wrench
The Horticultural Building
An Improved Velocipede
A Power Hack Saw
Photographic Notes- July 18, 1891
Valley's Railroad for Lumbermen etc.
Science in the Theater
Permanent Steam Engine Indicator
Departments
Correspondence- July 18, 1891
Recently Patented Inventions- July 18, 1891
Index of Inventions- July 18, 1891
Notes and Queries- July 18, 1891
New Books and Publications- July 18, 1891
To Inventors- July 18, 1891
Business and Personal- July 18, 1891
Patents!- July 18, 1891
