Volume 100, Issue 11
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Features
A Successful Friction Clutch
A Tribute to Roosevelt's Technical Judgement
Ventilation of Passenger Coaches
Electricity - March 13, 1909
Science - March 13, 1909
Engineering - March 13, 1909
The Projector in Surgery
Gas-Driven Battleships and Cruisers
The Airship of the Future
Did the “Republic” Carry Searchlights?
The Earthquake in Italy
Curiosities of Numbers
Stress in a Vacuum Balloon
A Peculiar Optical Phenomenon
Aeronautical Notes
THE AERONAUTIC SOCIETY AEROPLANE