Features
Expansion of Steam
Turning Tools
Seasoning of Lumber and Timber
Recent American Patents
Notice to Subscribers
Squire's Fruit Jar
The Ruhmkorff Coil
What Can be Done for Inventors--Advice Gratis and Advice for Pay
Retrospective
Professor Rankine on Expansion
Oil Stock Excitement
Patent Claims
Prof. Doremus's Lectures
Porter's Sifter Shovel
Departments
- Departments
Notes and Queries
