Scientific American Magazine
Volume 101, Issue 4You are currently logged out. Please sign in to download the issue PDF.
Features
Wire-Wound Versus Steel Guns
Magnitude of Work on New State Barge Canal
City Terminals Without Traffic Connection
Burglar-Proof Glass
Electricity
Science
Aeronautics
Some New Warships and Their Equipment
Some Experiments with an Orange
Opening of the Down-Town Hudson Tunnels
The Third Honorable Mention Essay in the Fourth Dimension Competition
The Scientific Work of the Late Prof. Simon Newcomb
The Disinfection of School Books
An American Farmobile
The Flight of the Curtiss Aeroplane for the Scientific American Trophy
Panning Without Water
Patent Department - July 24, 1909
Automatic Drain for Compressors
Portable Winch
Lock for Electric Meters
Expanding Brush for Cleansing Bottles
Apparatus for Purifying Water by the Injection of Ozone
Paper Hanger's Trimmer
Departments
Recently Patented Inventions - July 24, 1909
Index of Inventions - July 24, 1909
New Books, Etc. - July 24, 1909
