Features
Improved Cotton Gin Feeder
Patent Politics in Ohio
Progress of the Great Suspension Bridge Between New York and Brooklyn
Civilization by Upheaval
Refinements in Modern Astronomical Observations
Samson or Solomon?
Scientific and Practical Information - June 19, 1875
The Fireless Railway System in England
Cooking by Gas
Brachiospongia - June 19, 1875
Stenography by Machinery
The Alexandra
Novel Gas Apparatus at the Paris Grand Opera
Improvement in the Construction of Prisons
Practical Mechanism
Improved Barrel Hoop
Abbe's Dish and Vegetable Drainer
Improved Power Couplings
Fuller's Combination Packing
The Homes of the Working Classes
The Radiometer
Decisions of the Courts - June 19, 1875
Recent American and Foreign Patents - June 19, 1875
Household Hints--II
Communications Received - June 19, 1875
Departments
- Letters
Correspondence - June 19, 1875
- Departments
Business and Personal - June 19, 1875
Notes and Queries - June 19, 1875
Index of Inventions - June 19, 1875
