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GIBBS-SMITH, C. H., A History of Flying. Frederick A. Praeger, New York, 1954. KELLY, FRED C. (Ed.), Miracle at Kitty Hawk, the Letters of Wilbur and Orville Wright. Farrar, Straus and Young, New York 1951. KELLY, FRED C., The Wright Brothers. (A Biography Authorized by Orville Wright.) Harcourt, Brace and Company, New York, 1943. MCFARLAND, MARVIN W. (Ed.), The Papers of Wilbur and Orville Wright, including the Chanute-Wright Letters and other Papers of Octave Chanute. 2 vols., McGraw-Hill Book Company, New York, 1953.
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