Features
Fire Protection of Tall Buildings
High Speed on French Railways
Our Naval Constructors to be Educated Abroad
Latest Battleships and Cruisers for the British Navy
Our Relation to the Peace Congress
New System of Wireless Telegraphy
Woehnelt's Electrostatic Current Breaker
The Honey Bee Not a Native of America
A New Hay-Stacker
A Cheap Form of Air-Bath
The Bundy Acetylene Gas Lamp
Turrets of United States Naval Vessels
A Simple Vehicle Wheel
An Improved Chicken-Brooder
Opening the White Pass and Yukon Railway
The Beach Broadway Tunnel
Pneumatic Tube Delivery System at the Waldorf-Astoria Hotel
Rear-Admiral Charles O'Neil, U. S. N
The New Testing Locomotive at Columbia University
To Inventors - April 15, 1899
Departments
- Letters
Correspondence - April 15, 1899
- Recommended
New Books, Etc. - April 15, 1899
- Departments
Notes and Queries - April 15, 1899
Recently Patented Inventions - April 15, 1899
Index of Inventions - April 15, 1899
Business and Personal - April 15, 1899
Patents - April 15, 1899