Weather Bureau forecasting operations and activities dependent upon such operations in United States. An aircraft in flight with clouds all around. Kites with instruments to record weather data used for weather forecasting. Kite reel house mounted on turn tables and kites released. Head kite with the instruments attached to record weather data. Kites brought down after recording the relevant data.
Weather Bureau forecasting operations and activities dependent upon such operations in United States. A man works on a meteorograph that records temperature, humidity and air pressure at different levels above the surface of the earth. Two men look through theodolite used for computing the direction and speed of wind.
Berliner an early helicopter lands at Bolling fiield in Washington DC, United States. Pilot stands with the helicopter in the background. Men work on the helicopter. Helicopter's engine starts and it takes off. (Note: The Berliner helicopter that first made a controlled flight, in 1924, is in the Smithsonian's National Air and Space Museum collection and displayed at the College Park Aviation Museum in Maryland)
General William Mitchell and others come out of a building during Mitchell's court martial in United States. Members of the Courts martial Panel. General Douglas MacArthur, is seen at far right. Mitchell found guilty of violating 96th Article of War. General Billy Mitchell, smiles and shakes hands with Court President , Major General Hamilton H Howze.
General William Mitchell, in civilian clothes after his court martial, and resignation from the U.S. Army. He takes a walk with his wife and baby in a park in Washington DC, United States.
General Billy Mitchell accompanied with a group of people, arrives at court in Washington DC, USA. The group poses for the camera. People gathered in queues outside the court. General Michell standing in the court hears the charges against him. The trial continues. Major General Summerall with his elbow on his head listens to the charge of animosity on him. The Generals leave after the trial and pose outside the court.
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