Features
Manufacture of Illuminating Gas from Crude Petroleum
The Department of Parks, New York City
Chemical Sugar
The Vienna Patent Congress Once More
Failure of the Balloon to Europe
Tidings from the Missing Arctic Explorers
Gas as Fuel
Scientific and Practical Information - September 27, 1873
New Steam Motor - September 27, 1873
The Rigi Railway
The Planet Mars--Is It Inhabited?
Earwigs
The Great Exposition--Letter From United States Commissioner Professor R. H. Thurston
Combined Spade and Fork
Combined Water and Pressure Gage
Improved Railroad Hand Brake
Improved Clutch Drill
Down Hall, near Harlow, Essex, England
The Magic Lantern as a Means of Demonstration
Vienna Premiums Again and the American Sewing Machines
Recent American and Foreign Patents - September 27, 1873
Communications Received - September 27, 1873
Answer to Correspondents - September 27, 1873
Departments
- Letters
Correspondence - September 27, 1873
- Recommended
New Books and Publications - September 27, 1873
- Departments
Notes and Queries - September 27, 1873
Business and Personal - September 27, 1873
Index of Inventions - September 27, 1873
