Scientific American Magazine
Volume 38, Issue 21You are currently logged out. Please sign in to download the issue PDF.
Features
Improved Feed Water Heater and Purifier
The Black Silk Deception
A New Opportunity to Secure Foreign Trade.-- Scientific American Export Edition
Spirit Strings and Morbid Minds
Our Naval Necessities
The Accident to the Machinery of the Steamer Old Colony
The Transit of Mercury and the Inter-Mercurial Body
What are the Causes that Affect the Taste of Drinking Waters?
Communications
Our Simian Visitors
The Injector
Winterburn's Regulator for Oil Stove Wicks
Improved Differential Pressure Regulator
Improves Farm Gate
Waterspouts
Fangs of Serpents
Improved Spring Bed
Improved Grinding Mills
Proposed Bridge Over the Thames
M. Victor Regnault
Machinery Vs. Manual Labor
Bastard Patent Rights
Astronomical Notes - May 25, 1878
Communications Received
Departments
Business and Personal - May 25, 1878
New Books and Publications
Notes and Queries - May 25, 1878
Index of Inventions - May 25, 1878
Patents - May 25, 1878
