Scientific American Magazine
Volume 81, Issue 10You are currently logged out. Please sign in to download the issue PDF.
Features
Trolley Cars on Grades
Weight of Mail Matter in the United States
Nickel Steel in Boiler Construction
The Statistics of our Vast Railroad System
The American Association for the Advancement of Science
The Allegheny Observatory Objective
Copper Coins Melted up
An Ingenious Mowing-Machine-Sickle Grinder
An Improvement in Rotary Engines
A New Acetylene Gas Generator
Present and Proposed Cruisers of the United States Navy Compared
Ice Manufacture on a New System
Removal of a Famous Engineering Landmark
The Last Eruption of Mauna Loa
Ancient Egyptian Versus Modern Pin Locks
To Inventors - September 2, 1899
Departments
Recently Patented Inventions - September 02, 1899
Notes and Queries - September 2, 1899
Business and Personal - September 2, 1899
New Books, Etc.- September 2,1899
Index of Inventions - September 2, 1899
Patents - September 2, 1899
