Features
What is Life
Railways in England
Waiting and Watching
The Ogdensburg Railroad
The Ogdensburg Railroad
Vermont Central Rail Road
Georgia Rail Road
Another Diving Bell
A Great Rope
Mercury
Optical Illusions
Chinese Barber
Secrets of Ventilation
Hydrophobia--Important Theory
The Ring of Saturn
Salt Water and Fresh
New Locomotive Boiler for Using Anthracite Coal
Irish Trade Since the Union
Turnip Meal
Another Gold Mine
Quince Marmalade
Gold, Gold
Copperas a Disinfectant
Chalk in the United States
Wire Fence
Small Critics
Preserving Fruit
On the Proportion of Nutriment to the Means of Living
Sympathetic Inks
The Dead Sea Expedition
Animal-Shaped Mounds of Wisconsin
Perpetual Motion
Inventor's Claims
Straw Cutters
An Air Navigator
Regulating Motion
Improved Lifting and Force Pump
Who Shall I Get to Take Out My Patent ?
A New Instrument
That Engine
List of Patent Claims
Prevention of Steam Boiler Explosions
Water Wheels
The Great Britain
Ditching Machine
Progress and the Press
Opposition to Improvements
Fair of the Franklin Institute
Spurgin's Palace Bee Hive
Cause of Waves
Pride
Boston Water and Lead Pipes
Theory of Vision
Starch a Cure for Scurvey
Investigation of Science
Cliff Copper Mine
Mechanical Principia
Sending Receipts
Webster's Unabridged Dictionary
Life and Writings of Hogarth
The Best Mechanical Paper
Zinc
Test for the Purity of Magnesia
History of the Rotary Engine
New Chemical Law
Analyses of Milk
Departments
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To Inventors
To Correspondents