Scientific American Magazine
Volume 21, Issue 7You are currently logged out. Please sign in to download the issue PDF.
Features
Shaw's Gunpowder Hammer for Driving Piles, Remarkable Mirage in the English Channel
Improved Cork Extractor
Facts Concerning the Sun
Light
A Fish Farm
Indelible Ink for Marking Linen
Working Out and Patenting New Inventions
When Doctors Disagree Who shall Decide?
The Indiscriminate Use of Fireworks
An Arrant Humbug
Chinese Labor in America
Prediction of Weather
The Theory of Boiling—Tomlinson's Experiments and Conclusions
The Odoriferous Principles of Plants—And their Imitations—Fusel Oil
Bridge Across the British Channel
Important Patent Decision
Answers to Correspondents
Recent American and Foreign Patents
Official List of Patents
New Publications
Applications for Extension of Patents
Departments
Correspondence
Business and Personal
