Scientific American Magazine
Volume 13, Issue 25You are currently logged out. Please sign in to download the issue PDF.
Features
Pump Valve
The Deepest Well in The World
Artesian Wells in California
Witting's Improved Cotton Press
More Sorgho Sugar
Nitrogen—Its Utility
Improved Ironing Table
Drawing Cotton, Etc.
Patent Rights and the Lobby at Washington
Improved Elastic Railroads
Daniel's Improved Water Wheel
Improvements in Fire-Arms
Lap-Welded Iron Tubes
Paine's Wonderful New Discovery
Forty-three Millions
The American Patent System
Salt for Plum Trees
The “Leviathan” Afloat
Abstract of the New Patent Bill
Improved Coin Balance
Mechanics
Special Legislation on Patents
Heich's Egg-Beater
Artificial White Light
Science in Sport
Departments
Correspondents - February 27, 1858
