Langley Memoir on Mechanical Flight, Part I. 1887 to 1896, Part II. 1897 to 1903.
Washington, DC: Smithsonian Institution, 1911. Hardcover. Green cloth, gilt letters on spine and cover, gilt emblem on cover, 320 pp., 101 BW plates. Volume 27, Number 3 of the series Smithsonian Contributions to Knowledge. Samuel Pierpont Langley (1834-1906) was an aviation pioneer whose work was in progress at the time..... More