Volume 4, Issue 4
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Features
The Harrisburg and Lancaster Railroad Company, Pa
Lights of Genius
Steam Carriages for Common Roads
The Arctic Expedition
Rail Road News
The Pennsylvania Railroad
The Future
The Fair of the American Institute
Hours of Labor
Sturgeon Flesh in Europe
Singular Phenomenon
An Ancient Press
Importance of Punctuality
Wholesale Poisoning
Religious Manufacturing Association
Quadrature of the Circle
On Some Properties of Alumina
Gunpowder and Greek Fire
Antimony
Tortoise Shell
American Scientific Association
No. 3
Gypsnm Mounds in Western New York
Horse Power
Coal
New Piano Attachment
Yankee Music in London
List of Patents
New Process to Color Stone and to Make it Hard and Impermeable
Improvement in Pumps
Mill Stones
Iron Ore
New Boring Machine
Bung Cutting Machine
Gunshot Wounds
The Mechanic Arts
The Telegraphic System
The Weather Strip
Planing Machines
Disease from Intemperance
The Cholera
Borrowing
Value of Manufactures to a Country
Florida Reef and Everglades
New Telegraphic Line
Progress in Useful Art
The Camera Lucida
Ignorance and Crime
Patent Laws.--Selling Before the Issue of a Patent
Turning or Irregular Forms
Fossil Footprints
Pictorial National Society
Agency Revoked
Palmer's Business Men's Almanac
U.S. Mail Steamships
The Union for October
The Best Mechanical Paper
In the World Fourth Year of the Scientific American
History of the Rotary Engine
Prepared expressly for the Scientific American