Scientific American Magazine
Volume 23, Issue 2You are currently logged out. Please sign in to download the issue PDF.
Features
Launching of the Great Caisson for the Brooklyn Terminus of the East River Bridge
The Disposal of Sewage
What is Energy?
The Butterfly
What Inventors Say
Adulteration of Paints
Sirups for Soda Water
Editorial Summary- July 9, 1870
Steam Road Rolling
Gas as Fuel
The Progress of Chemistry in 1870
Hydrophobia and Dog Muzzling
The Stevens Institute of Technology
Progress of Invention Abroad
Scientific Intelligence- July 9, 1870
The New York Dock Commission--The Principal Plans Submitted
City Railroad Cars
Recent American and Foreign Patents- July 9, 1870
Answers to Correspondents- July 9, 1870
Official List of Patents- July 9, 1870
Applications for the Extension of Patents- July 9, 1870
Departments
Correspondence- July 9, 1870
Business and Personal- July 9, 1870
New Books and Publications- July 9, 1870
