Scientific American Magazine
Volume 39, Issue 9You are currently logged out. Please sign in to download the issue PDF.
Features
The Balance Dynamometer
The Rights of Investigators
The Planet Vulcan
Ammonia in the Air
Soft vs. Hard Iron
The Wallingford Tornado
The West as a Field for Manufactures
The New Divinity
A False Alarm
Pneumatic Engines for Street Cabs
Captive Balloon of 1878
Astronomical Notes
New Rein Holder
New Oscillating Valve
The Needham Musical Cabinet
The Speaking Flame
The Mesquite
Communications Received
Departments
Notes and Queries
New Books and Publications
Business and Personal
Index of Inventions
Patents
