Features
Artificial Respiration, The Efficiency of the Water Trap
Patent Law and Equity
Household Fungi
Two Meteorites
A New Industrial School of Art in New York
The National Academy of Science
Novel Swimming Device
A Large Ice Machine
Improved Hot-Blast Boiler Furnace
New Oil-Testing Apparatus
Novel Transparent Sign
A Novel Thermoscope
New Corn Grater
The Columbia
Natural History Notes
Dust Figures
Ants and their Milch Cattle
The Chronology of the Telegraph
Miscellaneous Inventions - May 22, 1880
The Volatile Oil of Mustard
Recent Decisions Relating to Patents - May 22, 1880
Communications Received - May 22, 1880
Departments
- Departments
New Inventions - May 22, 1880
Notes and Queries - May 22, 1880
Business and Personal - May 22, 1880
New Books and Publications - May 22, 1880
Index of Inventions - May 22, 1880
Patents - May 22, 1880
