Scientific American Magazine
Volume 44, Issue 21You are currently logged out. Please sign in to download the issue PDF.
Features
Progress of the Great Suspension Bridge Between New York and Brooklyn
Humanity Versus Fanaticism
Intolerance among Physicians
Corn as Fuel
How to Get Rid of Foundlings
Plea for a Government Perpetual Motion
Extinguishing Petroleum with Chloroform
Miscellaneous Inventions - May 21, 1881
Novel Oil Separator
Novel Car Cooler
The Gamgee Perpetual Motion
Engineering Inventions - May 21, 1881
Novel Washing Machine
New Telephone Transmitter
Novel Candlestick
A Simple Filter Pump
The Lemur Vari
Communications Received - May 21, 1881
Departments
Notes and Queries - May 21, 1881
Business and Personal - May 21, 1881
New Books and Publications - May 21, 1881
Index of Inventions - May 21, 1881
