Scientific American Magazine
Volume 12, Issue 5You are currently logged out. Please sign in to download the issue PDF.
Features
Tool for Drawing Broken Pump Rods
How to Shrink Collars on a Shaft
Mechanical Hand Rake
The Law of Successive Species
Some Facts About Peru
Polytechnic Association of the American Institute
The Metric System
Turning Tools
Editorial Correspondence
Professor Page the Inventor of the Ruhmkorff Coil
Hardening and Tempering Steel
Guns Bursting in Action
Adulterating Lard with Water
Beam Engines
Dispatch from Assistant Secretary Fox
The Size of Holes in Furnace Doors
A Gas Explosion
A Sensible New Year's Gift
Paper from Cane
Special Notice
Professor Grove on Light
Recent American Patent
Patent Claims
Departments
Patents
Notes and Queries