Volume 24, Issue 9
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Features
Elastic Metallic Rocking Chair
Facts About the River Amazon.--Steam Navigation and Railroads
Poetry and Patents
Dyers' Recipes
From Haserick's Secrets of Dyeing.
The Ancient Brewers of New York
Oak Graining
[Condensed from the Builder.]
Pyrometer
Perpetual Motion- February 25, 1871
W. Mattieu Williams on the Bessemer Process
From Nature.
Interesting School Statistics
[CHIEFLY FROM MR. KIDDLE'S ANNUAL REPORT.]
Hand Sewing Machine
Toughening and Refining Gold
Electro-Metallurgy
The Largest Gun in the World
The Hudson River Railroad Disaster
Progress of Foreign Invention- February 25, 1871
Intelligent Legislation About Medical Prescriptions
A Remarkable Geological Discovery
The Pecuniary Prospects of the East River Bridge
How the Ice Bridge is Formed in the East River
The Present and The Past- February 25, 1871
Scientific Intelligence- February 25, 1871
Recent Decisions at the Patent Office- February 25, 1871
Answers to Correspondents- February 25, 1871
Queries- February 25, 1871
Recent American and Foreign Patents- February 25, 1871
Under this heading we shall publish weekly notes of some of the more prominent home and foreign patents..
Applications for Extension of Patents- February 25, 1871
New Patent Law of 1870
Official List of Patents- February 25, 1871
Issued by the U.S. Patent Office. FOR THE WEEK ENDING FEB. 14, 1871. Reported Officially for the Scientific American.