Features
A New Theory of the Earth's Magnetic Poles
Magnetizing Molten Iron
A Patent Right Discussion in England
“Scientific Credulity”
The Diseases of Building Timber
Objections to Self-Propelling Fire Engines
The Prospects of Tea Culture
Recent American Patents
New Electric Lamp
Luedtge's Universal Telephone
Hydriodic Acid
Pneumatic Clock
Recent Mechanical Inventions
A Novel Rotary Pump
The Thick-Thighed Walking Stick
The Elephant Shrew
An Inventor Victorious
New Device for Separating Cream from Milk
Improved Anchor
Engineering Inventions - July 5, 1879
An Old Concern Re-Established
Communications Received - July 5, 1879
Departments
- Departments
Correspondence - July 5, 1879
Business and Personal - July 5, 1879
Notes and Queries - July 5, 1879
New Books and Publications - July 5, 1879
Index of Inventions - July 5, 1879
Patents - July 5, 1879
