Volume 2, Issue 16
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Features
New Steamboat Law
The Obstruction to the Navigation of Rivers Caused by the Piers of Bridges
Discoveries in the Composition of Gums
Science among the Boys
Iron Combination Beams for Buildings
Can we See our Own Eyes?
Steam Plowing in Texas
Glaziers' Diamonds for Millstones
Heat in Photography
New Jersey Copper
The Dishonesty of English Traders and Manufacturers
The London Fire-Escape
The Dictionary Controversy
The California Philosopher and His Steel Billiard Ball
The Value and Usefulness of Railroads
An Inventor Sensitive about His Name
Etching on Steel
Snakes
The Largest Vacuum Pan in the World
An Improvement in Paper Manufacture
"Wanted--A Cotton Gin!"
Trial of Locomotives in South America
Polytechnic Association of the American Institute
A Column of Varieties
Feathering Paddle Wheels
Improved Horse Rake
Improved Hay-Making Machine
Our Correspondence - April 14, 1860
Fire-Escapes
Novel and Exciting Sport
Howe's Sewing Machine Trial
Presentation of a Gold Snuff-Box to an Inventor
American Naval Architecture
Childrens' Confidence--How they should be Treated
Weekly Summary of Inventions - April 14, 1860
Foreign News and Markets - April 14, 1860
Patent Claims - April 14, 1860
Issued from the United States Patent Office