[posted] Posted (#54565, Lilienthal) !

[Al Haines]

Der Vogelflug als Grundlage der Fliegekunst., by Otto Lilienthal         54565
  [Subtitle: Ein Beitrag zur Systematik der Flugtechnik.]
  [Language: German]
  [Link: http://www.gutenberg.org/5/4/5/6/54565 ]
  [Files: 54565-8.txt; 54565-h.htm]

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Regards,
Al