Features
Moss Paper
To Clean Sponges
A Huge Propeller Screw
Statistics of Cincinnati
American Spiral Bullets in England
List of Patent Claims
Iron Steam Battery
When to Wear India Rubbers
Oil on the New York Central Railroad
Reform in the Patent Laws
Russian Sea Worms
Flour Mills
Pennsylvania Coal
How to Manufacture Saltpeter
The Condensing and Cornish Engine
Black Lead Pencils
Hominy Machines
The New Mechanics' Hall at Worcester
Ship Building in Maine
Rag Cutting Machines
Cause of the Open Polar Sea
Horse Shoes by Machinery
Opposition to Inventions and Discoveries
How Machinery Increases Beneficial Labor
Franklin's Great Discovery
Manufacture of Iron--Hot Blast; Saving of the Waste Gases
Recent Foreign Inventions
Who Was the Inventor of Steam Locomotives?
Expanding Flying Bridge
Life at the Bottom of the Deep Sea
The Right Man for the Right Place
Preparation of Gun Cotton for Collodion
Medals to Scientific Men
Tunnels
The Monster Mortar
Land Anchor for Carriages
Glue Impervious to Water
Improvement in Vises
Departments
- Letters
To Correspondents
