Volume 4, Issue 20
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Features
The Royal Pedigree
The French Sewing Machine
Railroad News
Telegraph Lines
Indianopolis Railroad
California Railroad
American Phrenological Journal
Trial of Factory Girls
Virginia Coal
A Golden Rock
The Great Telegraph Case
The Thermometer and Winter Items
Our Prize Essay
Westwardly Current Along the North Shore of Cuba
Children Born Blind
New Parliamentary Rule
Death by Anthracite Coal Gas
Tunnelling the Alps
Separation of Iron from the Ore by Permanent Magnets
Disasters on the Western Rivers
Homestead Exemption
Patent Case
Queen Ann's Farthing
A Healthy Town
Remington Again
Morfitt's Chemical and Pharmaceutic Manipulator
American Pencils
A Bone Picker
Mr. King's Report on the Panama Railroad
Advice to Children
The Lost Ten Tribes
Importance of Flannel
California the Ancient Ophir
Engraving
Foolishness of Profane Swearing
Madder
The Barometer
Invention to Prevent Collisions on Railroads
Improvement in Paddle Wheels
Irvin's Percolated Propeller Churn
Enamelling Iron
Counterfeit Detector Balance
List of Patents
Reform in the Patent Laws
Pleasure Carriages
Explosion of a Boiler
Report of the Patent Office
American Manufactures
Balloons
Back Volumes of the Scientific American
The Way to Melt the Ice on the Side Walk
Habit
A Terrible Case of Suffering
Funds for the Pope
Curious Reminiscence of California
The Coast Survey
Light and the Human Eye
Public Libraries
To Make a Gold Powder
Chemical Affinity--Definite Proportions
To Wash Iron With Gold
Poisonous Metals.--Liquid Tests of Arsenic
The Best Mechanical Paper
In the World Fourth Year of the Scientific American
History of the Rotary Engine
Prepared expressly for the Scientific American