Scientific American Magazine
Volume 45, Issue 2You are currently logged out. Please sign in to download the issue PDF.
Features
State Laws Affecting Patents
Water Glass
The Great Comet Now in Sight
The Stephenson Centenary
Improved Feed-Water Regulator
Mechanical Inventions
Novel Cattle Ringer
Improved Wagon Spring
Improved Air Pump
Explosion of a Plain Cylinder Boiler in Philadelphia
An Interesting Boiler Experiment
Expansion Voltameter
Improved Car Truck
The Electric Boat
The Faure Battery--Stored-Up Electricity
The Prospects and Present State of Photo-Graphy in Natural Colors
Communications Received
Departments
Correspondence - July 9, 1881
New Inventions - July 9, 1881
Notes and Queries - July 9, 1881
Business and Personal - July 9, 1881
New Books and Publications - July 9, 1881
Index of Inventions - July 9, 1881
