Features
Brown's Force Pump
Statistics of Strikes in Britain
Railroad Accidents
Hatching Salmon
Curious Effect of Trying a Cannon
Poisonous Adulterations in Cider
A Tunnel at Albany
Cause of the Burning of the Amazon
Hobb's Locks
Geology of the Lead Mines.--No. 2
A Good Water Wheel
Academy of Sciences in Paris
Wreck of the U.S. Steam-Frigate Missouri, at Gibraltar
Copyrights and Patents
Dr. Kane's Lectures
Woodworth Patent Monopoly
Our Advertisements
Brick Machines
Statistics of Coffee
New Method of Preparing Negative Photographic Paper
Recent Foreign Inventions
Cut-Off Valve
Tubular Tunnel
Letter Printing Press—The Typographer
Finlay's Patent Differential Governor
Rifled Cannon
Improved Ships' Hank
Velocity of Light
Lyman's Boiler Gauge
To Subscribers—Our Half Volume
Parker's Water Wheel
Monuments to Great Men
List of Patent Claims
World Makers
An Important Paragraph
New Edition of the Patent Laws
New Arrangement
Yankee Enterprise—Transporting Timber from the Mountains
Steamship Baltic
Manufacture of Combs
On Boilers—No 15
Saliva
Inventors
Cure for Toothache
Extinguishing of Fires
The Orinoco
Departments
- From the Editor
To Correspondents
