Volume 2, Issue 14
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Features
The Daguerreotype
The Obstruction to the Navigation of Rivers Caused by the Piers of Bridges
Glycerine for Gas Meters
Loss of Light by Glass Shades
A Sparkling Vane
How to Make a Mushroom Bed
The Water Wheel Experiments at Philadelphia
A Wonderful Cave
Fawkes' Steam Plow
Philosophical Instruments
A Chance for Inventors--a Greater than Whitney Wanted
Curious Optical Phenomena
Polytechnic Association of the American Institute
A New Areometer for Determining the Real Density of Liquids
English Locomotives on a Bender
Iron and Wooden Ships
American Naval Architecture
A Column of Varieties
Improved Mole for Drain Plows
Improved Hay--Maker
Activity and Industry of Inventors
Working Steam Expansively
Wooden and Iron Ships
The Leather-Dealers and the Lynn Strikers
Self-Acting Ships' Pump
Peroration on a Wagon Brake
Industry--Manufactures--Commerce
Testimonial Letters
The Profits of Tanning
Weekly Summary of Inventions - March 31, 1860
Foreign News and Markets - March 31, 1860
Patent Claims - March 31, 1860
Issued from the United States Patent Office