[75] Internal Work of the Wind.
[76] Engineering News, December 13, 1890.
[77] Meteorological Journal, November, 1891.
[78] On Atmospheric Movements (Abbe’s translation).
[79] From Scientific American, March 13, 1909, by permission of Munn & Co.
[80] For a fuller account of this fine airship see H. Peltier’s article in L’Aérophile, December 1, 1910.
[81] This description and the following are from Present Status of Military Aëronautics, by Major G. O. Squier.
[82] From Navigating the Air, by permission of Doubleday, Page & Co.
[83] From Scientific American of March 4, 1911, by permission of Munn & Co.
Transcriber’s Notes: