Features
Publishers' Card
Diphtheria
A Valuable Gift by Chemistry to the World
Making Excuses
That Obnoxious Postal Law
Weak Sparks
Six Good Reasons Why Every Manufacturer, Mechanic, Inventor, and Artisan Should Become a Patron of the Scientific American
Working Men's Reading Rooms
Recent Improvements in the Screw Propeller
Steam Cultivation
Robertson's Iron Fence
A Non-Retreating Bunsen Burner
Donkey Pump
Improved Screw Cutting Die and Holder
Plate Shearing Machinery
The Krupp Twelve Hundred Pounder Gun
The Trinity Shoals Lighthouse
New Chemical and Miscellaneous Inventions - December 18, 1875
New Household Articles - December 18, 1875
Recent American and Foreign Patents - December 18, 1875
New Agricultural Inventions
New Mechanical and Engineering Inventions - December 18, 1875
New Woodwork and House and Carriage Building Inventions - December 18, 1875
Communications Received - December 18, 1875
Canadian Patents - December 18, 1875
Departments
- Letters
Correspondence - December 18, 1875
- Recommended
New Books and Publications - December 18, 1875
- Departments
Business and Personal - December 18, 1875
Notes and Queries - December 18, 1875
Index of Inventions - December 18, 1875
