Scientific American Magazine
Volume 21, Issue 2You are currently logged out. Please sign in to download the issue PDF.
Features
Improvement in Looms
Playing with Lightning
The Light of the Stars
New and Improved Form of Simple Microscope
Walker's Patent Sash Fastener
An Important Question in Sociology--The Intermarriage of Relations
Natural Selection
Leghorn Straw Hats
Spontaneous Generation
Wanted a Substitute for Earth and Plaster Walls
Wanted--Light in Dark Places
The Hartford Steam Boiler Inspection and Insurance Company
Hail and Hailstorms
The Practical Application of the Slide Valve and Link Motion to Stationary, Portable, Locomotive, and Marine Engines
Manufacturing, Mining, and Railroad Items
Editorial Summary
New Rule about Patent Office Drawings
Interference Case--Decision of the Commissioner of Patents
New Publications
Applications for Extension of Patents
Recent American and Foreign Patents
Answers to Correspondents
Official List of Patents
Departments
Correspondence
Business and Personal
