Scientific American Magazine
Volume 70, Issue 20You are currently logged out. Please sign in to download the issue PDF.
Features
The Lawrence Underground Conduit Electric Trolley Railroad
An Astronomer Honored
Dangers Incident to Electric Current Distribution
"The Harvest of a Quiet Eye"
Decisions Relating to Patents
An Automatic word Counter for Typewriting Machines
The Westcott Chucks
An Improved Mailing Machine
Paper Box Making
A Puzzle Purse
Electric Capstans
The Torpedo Boat Destroyer Hornet
An Improved Cultivator
Bicycle Exercises at Leipzig
To Inventors - May 19, 1894
Departments
Recently Patented Inventions - May 19, 1894
New Books and Publications - May 19, 1894
Notes and Queries - May 19, 1894
Business and Personal - May 19, 1894
Index of Inventions - May 19, 1894
