Features
The Protection of Small Inventions
Light, Heat, and Power at Little Cost
Bessemer's Bronze Powder--How the Public Gains by Granting Patents for Invention
Mechanical Inventions - May 6, 1882
Sir Charles Wyville Thomson
Improved Washing Machine
Engineering Inventions - May 6, 1882
Sewage Machine
Improved Gas Engine
Novel Ship's Log
Improved Boiler and Furnace
Miscellaneous Inventions - May 6, 1882
Some Curious Bugs
Sugar--A Glance at its History, Production, and Manufacture
Departments
- Departments
Recent Inventions - May 6, 1882
New Inventions - May 6, 1882
Business and Personal - May 6, 1882
Index of Inventions - May 6, 1882
Notes and Queries - May 6, 1882
