492 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 55 



Landub, N. Memoire sur la navigation aerienne sans ballons. Calcul de la 

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Amgcourt: Collection de mgmoires sur la locomotion a&rienne sans ballons, 

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Lane-Howard. See 4173. 



Lang, Ritteb von. Experiments on the friction between water and air. 



Proc. Roy. Soc, Vol. 24, 1875-1876, London, pp. 441-442. S (71. "54 



Lang, Viktor von. Experiments on the friction between water and air. 



Philos. Trans. Roy. Soc. London, 1876, Vol. 166, Part 1, 1877, pp. 589-600, 

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Langendahl, p. De lotgevallen van de beroemde luchtreizigers Michel Ardan, 

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Langensiepen. Kurze Geschichte der Luftschifferkunst fiir die Jugend und 

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Langensiepen, C. F. Kurze Geschichte der Luftschifferkunst. 



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Langley, Samuel Pierpont. See 57, 1506, 1550, 1556, 1862, 2192, 2448, 2564, 

 2670, 2684, 3064, 3463, 3464, 3550, 3699, 3754. 3755, 4307, 4708, 5600, 5605, 

 5638, 6179, 6312, 6740, 7266, 8100, 8174, 8356, 8691, 8904, 9797, 9800, 10584, 

 10613, 10873, 11292, 11293, 11294, 11295, 11296, 11297, 11361, 11447, 11450, 

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Langley, Samuel Pierpont. A rubber-propelled model. 



Aeronautical Annual, No. 3, 1897, Boston, pp. 153-154, figs. 3. S (71CU 



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Science (May 22, 1896), New York, p. 753. S (7160 



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Naturwissenschaftliche Rundschau, Nr. 13 (31 Marz 1894), Braunschweig, p^ 

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C. R. Acad. Sci., 122 (26 mai 1896), Paris, pp. 1177-1178. S (7/63 



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E.xtrait des Comptes Rendus des SSances de I'Acadgmie des Sciences, T. 122, Seance 

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Rev. Aer., 4*^ annee, 3<' et 4« liv., 1891, Paris, pp. 77-124, flgs. 49-63, pis. 

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Washington, The Smithsonian Institution, 1891, iii, p. 115, incl. tabs., diagrs., 

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