Scientific American Magazine
Volume 98, Issue 4You are currently logged out. Please sign in to download the issue PDF.
Features
Pure Hydrogen from Carbides
Panama Canal to Cost $300,000,000?
Great Increase in Transatlantic Travel
The Pennsylvania Tunnel Excavation Beneath Manhattan Completed
The Farman Aeroplane Wins the Deutsch-Archdeacon Prize
The Pacific Scientific Institution of Honolulu
International Investigation of the Upper Air
The Current Supplement
The Patent Office in 1907
A Unique Aerial Tramway Used in the Construction of Chicago's Lake Tunnel
A Photographic Method of Producing Bas-Reliefs
The Reuterdahl Attack on Our Navy
Insects That Are Eaten
Device for Pulling Spokes
An Improved Bale Tie
An Improved Portable Concrete Mixer
An Apparatus for Electrically Transmitting Sight
Departments
Correspondence - January 25, 1908
Recently Patented Inventions - January 25, 1908
Notes and Queries - January 25, 1908
New Books, Etc.
Index of Inventions - January 25, 1908
Patents - January 25, 1908
