Features
What is Materialism?
The Hell Gate Blast
Infusorial Earth and Its Uses
The Centennial Awards
A Cigar Scientifically Dissected
A Life-Preserving Cap and Cape
A Pocket Lung Tester
Improved Building Blocks
Apparatus Used in Industrial Processes
Practical Mechanism - October 14, 1876
Improved Crosshead for Locomotives
Improved Air Pump
Improved Bucket Ear
The Sea Gull
Rambling Notes
Centennial Notes
Glycerin
New Miscellaneous Inventions - October 14, 1876
New Woodworking and House and Carriage Building Inventions - October 14, 1876
New Agricultural Inventions - October 14, 1876
Recent American and foreign Patents - October 14, 1876
New Household Inventions - October 14, 1876
Communications Received
The Validity of Patents - October 14, 1876
Value of Patents - October 14, 1876
Departments
- Letters
Correspondence - October 14, 1876
- Recommended
New Books and Publications - October 14, 1876
- Departments
Index of Inventions - October 14, 1876
Notes and Queries - October 14, 1876
Business and Personal - October 14, 1876
