Features
New York and the Centennial
The Signal Service Report
Scientific and Practical Information - December 6, 1873
Photography of the Invisible
Recent Experiments with Diamonds
Science in the Kitchen
The Tom Thumb Telegraph
The Miniature Telegraph
The Challenge Reversible Rotary Hoisting Machine
Subjects for Engineering Papers
The Germ Theory and its Relations to Hygiene
The Yucca Pendula
Improved Box Corner Grooving Machine
The Pashiuba Palm of Brazil
Astronomical Notes - December 6, 1873
The Nebul
Recent American and Foreign Patents - December 6, 1873
Decisions of the Courts - December 6, 1873
Answers to Correspondence - December 6, 1873
Communications Received - December 6, 1873
Departments
- Letters
Correspondence - December 6, 1873
- Departments
Business and Personal - December 6, 1873
Index of Inventions - December 6, 1873
