Features
The Problem of the Telephone
Vienna International Electric Exhibition
The Past Year in the Patent Office
The Star of Bethlehem
What is an Artist?
Electric Motors with Inductors Containing no Iron
An Ammonia Still for Small Gas Works
Improved Sponge Filters
Terra Cotta Lumber
Flexible Self-Gauging Faucet
The New Otto One-Horse Power Silent Gas Engine
A Glass Globe from which Three Hundred Watch Crystals were Cut
The Automaton Chess Player
Miscellaneous Inventions
Engineering Inventions
Agricultural Inventions
Mechanical Inventions
Departments
- Departments
Correspondence
Recent Inventions
Business and Personal
Notes and Queries
Index of Inventions
