Scientific American Magazine
Volume 38, Issue 6You are currently logged out. Please sign in to download the issue PDF.
Features
The Horizontal Pendulum
Is Gravity a Mode of Motion?
Medical Progress in 1877
Stick to the Law
Patent Office Employees to be Disgraced
The Mail of the Metropolis
Heinrich Daniel Ruhmkorff
Folding-Door Fireproof Safe
Modern Torpedo Warfare
Smith's Improved Windmill
A New Digging Machine
Communications
Making Callipers
Improved Portable Cider Mill
Powell's Improved Cotton Harvester
The High School of Kolapore, India
The Long-Necked Chelodine
Whales and Whalebone
Beard's Thill Coupling
A Fowl Monstrosity
Astronomical Notes
Wants and Business Inquiries
Departments
Notes and Queries
Business and Personal
Index of Inventions
Patents
