Features
We Need Fewer Doctors
The First Iron Sailing Vessel
What to Abolish from Warships
Our Enormous Exports
The Metric System
The Proposed Brooklyn Bridge Terminal Station
Chimney Draft
Trade-Marks in the Philippines
A Bell-Buoy Operated by Tide Motor
Dovetailing Machine
Air Cooling Apparatus
Long-Distance High-Tension Transmission of Power in California
The Crossley Reflecting Telescope and its New Mounting
The Trade in Wild Animals
Have the Lower Animals Other Senses Than Ours?
Artemiev's Electrical Coat of Mail
A New Electrical Steering Gear
Business and Personal Wants
Departments
- Departments
Science Notes - May 16, 1903
Correspondence - May 16, 1903
Recently Patented Inventions - May 16, 1903
Notes and Queries - May 16, 1903
New Books, Etc. - May 16, 1903
Index of Inventions - May 16, 1903
Patents - May 16, 1903
