american magazine of aeronautics - july 1907
DESCRIPTION
Conditions of Success with Flying Machines, by Octave Chanute.Theory of Balloon Leakage, by A. F. Zahm, Ph.D.The Meteorological Conditions Above St. Louis, by Professor A. Lawrence Rotch.Progress in Aeronautics, Editorial.Aeronautics in England, by Major B. Baden-Powell.Wings More Efficient than Screws.Schools of Instruction in Aeronautics Established in Germany and France.TRANSCRIPT