pposite directions, but the horizontally. The neutralizing propellers avoid the Mr. S. V. Winslow, of Riparia, Wash., sends us the use of a large rudder to prevent the machine from vanes are so placed as to apply the power in one given accompanying photograph of a flying machine, which, twisting in… … coal comes for plane is to the most part drive it down from Tscheremchow and _ Shudschenka, in the an inclined track, allowing it to soar of its own voli- lifters,’ supplementing the aeroplane in ascending or Tomsk region. In the Siberian mines the coal descending. tion after the momentum acquired…
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