Features
Improvements in the Silvering of Mirrors
Pharaoh's Serpents--Are They Dangerous Toys?
Ice Roads and Railways on Ice
Should a Baby Be Fat?
The Tehuantepec Ship Railway
Electric Illumination at Menlo Park
Electric Light Good for the Eyes
Machine for Riveting the Tubes of Galloway Boilers
Improved Apparatus for Upward Percolation
Improved Bench-Plane
Tobacco-Leaf Cutting Knife
Bottle Cock for Effervescing Liquids
Mechanical Inventions - January 22, 1881
Novel Steam Boiler
On Magic Mirrors
New Radial Drill
Miscellaneous Inventions
Improved Steam Fog Horn
Curious Fact in Natural History
Fresh-Water Medusæ
Natural History Notes
Engineering Inventions - January 22, 1881
Transactions of the American Society of Engineers
Decisions Relating to Patents
United States Circuit Court.....
Communications Received
Departments
- Departments
Recent Inventions - January 22, 1881
Correspondence - January 22, 1881
New Inventions - January 22, 1881
Notes and Queries - January 22, 1881
Business and Personal - January 22, 1881
New Books and Publications - January 22, 1881
Index of Inventions - January 22, 1881
