Scientific American Magazine
Volume 42, Issue 21You are currently logged out. Please sign in to download the issue PDF.
Features
Artificial Respiration, The Efficiency of the Water Trap
The Babcock & Wilcox Water Tube Boiler
Patent Law and Equity
Two Meteorites
Household Fungi
A New Industrial School of Art in New York
The National Academy of Science
A Large Ice Machine
Novel Swimming Device
New Oil-Testing Apparatus
Improved Hot-Blast Boiler Furnace
A Novel Thermoscope
New Corn Grater
Novel Transparent Sign
The Columbia
Dust Figures
Natural History Notes
Ants and their Milch Cattle
The Chronology of the Telegraph
Recent Decisions Relating to Patents - May 22, 1880
Miscellaneous Inventions - May 22, 1880
The Volatile Oil of Mustard
Communications Received - May 22, 1880
Departments
New Inventions - May 22, 1880
New Books and Publications - May 22, 1880
Business and Personal - May 22, 1880
Notes and Queries - May 22, 1880
Index of Inventions - May 22, 1880
Patents - May 22, 1880
