Scientific American Magazine
Volume 28, Issue 20You are currently logged out. Please sign in to download the issue PDF.
Features
Improved Planer
Improved Bolt Heading Machine
Is the Earth the Only Inhabited World?
Opening of the Vienna Exposition
A New Rule in Respect to Caveats
A New Specific for Rheumatism
Nature and Art--The Mystery of the Magneto-Electric Machine
Scientific and Practical Information
The Movements of the Stars
Foot Power Jig Saw
Taylor's Patent Firkin Head
The Wonders of the Egg,--Second Lecture
Stevens Institute Lectures.--Gold Mining in California
Science Record.--New Edition
Paper Making
Country Homes--Rural Cottages
Tree Protector
Fruit Fork
A.R.M.M.A
Recent American and Foreign Patents - May 17, 1873
Decisions of the Courts - May 17, 1873
Answers to Correspondents - May 17, 1873
Communications Received - May 17, 1873
Departments
Correspondence - May 17, 1873
New Books and Publications - May 17, 1873
Notes and Queries - May 17, 1873
Business and Personal - May 17, 1873
Index of Inventions - May 17, 1873
