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Brown, D. S. On the economy of using power intermittently for aerial sup- 

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Fourth Annual Report of the Aeronautical Society of Great Britain, 1869, Green- 

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Eleventh Annual Report of the Aeronautical Society of Great Britain, 1876, Green- 

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. The aero-bi-plane, or first steps to flight. 



Ninth Annual Report of the Aeronautical Society of Great Britain for the Year 

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Eighth Annual Report of the Aeronautical Society of Great Britain for the Year 

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Bkown, David Stephen. Showing that for sustaining a body in the air by 

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Third Annual Report of the Aeronautical Society of Great Britain, 1868, Green- 

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Brown, B. C. Brown's directory of American gas companies 



Press of " Progressive Age," 1907. Sq (2251> 



Brown, H. H. Some construction details of the Wright aeroplane. 



Aeronautics, Vol. 3, No. 4 (Oct. 1908), New York, pp. 14-16, 44, iR. 1. S (2260 

 Brown, Harold H. The commercial possibilities of the aeroplane. 



Scient. Amer., Vol. 100, No. 15 (April 10, 1909), New York, p. 279. S (2261 



Bbown, H. S. Defense of the Wright system of propellers. 



Scient. Amer., Vol. 99, No. 26 (Dec. 1908), New York, p. 471. S (2262 



Brown, S. O. Flight of birds and aerial navigation. 



Scient. Amer. Suppl., Vol. 56 (Sept. 19, 1903), New York, pp. 23166-23167. S (2263 



Brown, Sidney Orville. The disclosure of a secret, and its application to 

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Scient. Amer. Suppl., VoL 56, No. 1446 (Sept. 19, 1903), New York, pp. 23166- 

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Brown, Thomas. A description of the exocoetus volitans or flying flsh. 



Philos. Trans. Roy. Soc, Vol. 68, Part 2 (1778), London, 1779, pp. 791-800, 

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Bruce. On the meteo-parachute. 



Dritte Vers. Int. Komni. Wiss. Luftsch., 1902, Berlin, p. 91. WB (2266 



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Nature, Vol. 35, 1887, London, p. 259. ' (226S 



