Features
The Aeroplane in the Military Maneuvers
The War Operations in Connecticut Clearly Point to the Necessity of Having a Large well Trained Corps of Aerial Scouts in our Army, Equipped with Machines Capable of Rising from Unfavorable Ground with two more Occupants...
Teaching the Farmer How to Use Electricity
A Circus Tent display of Farm Apparatus by a Central Station Company
The Harbors of the Pacific Coast
Terminal Facilities for the Panama Canal Trade
Etching Glass with Hydrofluoric Acid
A Home-made Hygrometer
Improved System of Filtering
A Simple Microphone and Reproducer
A Simple Wire-winding Apparatus
The Trade-mark as a Business Asset, The Elements of a Good Trade Mark--VII and more
The New Serum Treatment of Bleeding and Hemorrhage, Can the Baser Metals be Changed to Gold and more
Antagonistic Body Juices
Departments
- Letters
Correspondance - August 24, 1912
- Recommended
New Books, Etc. - August 24, 1912
- Departments
Inventions New and Interesting - August 24, 1912
Recently Patented Inventions - August 24, 1912
Notes and Queries - August 24, 1912