Novel Device for Heating and Ventilating Rail Road Cars, Improvement in Mandrels for Turning
Johnson & Froggott's Patent Horse Shoe
Can Water be Solidified by Pressure?
Recent Americans and Foreign Patents
Answers to Correspondents
Manufacturing, Mining, and Railroad Items
Proposed Railroad Suspension Bridge Across the Hudson River, East Indian Opium.
A British American Inter-Oceanic Railway
Alcohol its Nature, Uses, and Effects
New and Important Patent Office Rule
The North Pole and its Seekers
American Silk Manufacture
Patents and Claims
Isued by the United States Patent Office
Literature for Workingmen
Business and Personal