Features
Motion and Heat
Salt
Disinfecting Agents
Gold Quartz Factories
Sharpe's Rifles for England
List of Patent Claims
The Great Yacht Race
Lake Phenomena
Ancient Ruins--Coal
Ascent of Balloons
Material for Roofing Buildings
Brakes to Fire Engines
Cowperthwaite's Patent Hydrant
Venetian Glass--How They Make Beads
Engravings
Improved Bevel Plane
Recent Foreign Inventions
New Tidal Flood Gate
Notes on Ancient and Curious Inventions--No.9
Telegraph Improvements
Recent American Patents
Perpetual Almanac
The Press on the New Patent Bill
Curious Instinct of Plants
American Steamboat Engines for the Danube
Who First Employed Anthracite Coal in Smelting Iron
Important Items
Does the Moon Rotate
Fish Eggs
Mechanics
Form of the Earth
Improved Stump Puller
Gold Coinage
Improved Ventilation of Ships
New Mowing Machine
Departments
- Letters
To Correspondents