Features
Opening of Great Industrial Exhibitions, Boston
Steam-Boiler Notes
Dr. Heath's Discoveries in South America
Reviving Old Rejected Cases
Promotions in the Patent Office
Instantaneous Photography
Mechanical Inventions
Electric Flying Machine
De Combette's Solar Watch
Self-Registering Target
A Deadly Fly--New Case of Myiasis Observed in the Argentine Republic
Removal of Flood Rock, New York City
Improvement in Telephones
An Improved Battery
Spinning Attachment for Sewing Machines
Sevres Urn
Departments
- Departments
New Inventions
Recent Inventions
Business and Personal
Notes and Queries
Index of Inventions
