Langley Memoir on Mechanical Flight, Parts I and II, Volume 27 Number 3, Publication 1948, 1911Note 27 — Chapter VIII · HISTORY OF CONSTRUCTION OF SUSTAINING AND GUIDING SURFACES OF AERODROMES 4, 5 AND 6Reading editionChapter V ◊.◇Copy noteReturn to CHAPTER VIII HISTORY OF CONSTRUCTION OF SUSTAINING AND GUIDING SURFACES OF AERODROMES 4, 5 AND 6