Volume 18, Issue 9
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Features
The Nashville Suspension Bridge
Science Familiarly Illustrated
Turning a Movable Wheel Around a Fixed Wheel
Manufacturing Mining and Railroad Items
Recent American and Foreign Patents
Answers to Correspondents
Making Chains Without Welding
Harlan's Patent Animal Trap
Bruce's American Foot Stove
Patent Bills before Congress
The Commissioner of Patents
Phosphorus--Its Characteristics
Badly Planned Buildings
Consumption and Nature of Material Used in the Manufacture of Matches
Hardening and Tempering Steel--The Value of Baths
Patents and Claims
Issued by the United States Patent Office