Langley, S. P. (Samuel Pierpont), 1834-1906.
Langley memoir on mechanical flight : Part I, 1887 to 1896 / by Samuel Pierpont Langley ; edited by Charles M. Manly. Part II, 1897 to 1903 / by Charles M. Manly.
Washington : Smithsonian Institution, 1911.
Includes bibliographical references (p. [xi]) and index.
Parts 1-2 in one volume. Pt. 2, 1897 to 1903 by C.M. Manly.
"References": pt. 1-2, 1 leaf following p. x.
Aeronautics.
Flight.
Manly, Charles M. (Charles Matthews), 1876-1927.
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