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{^ 

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Annals of the Astron. Observ. of Harvard College, Vol. 42, Part 1, 1897, Cam- 



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BLiJMELHUBER, MicHEL. Ein Icukbares Luftfahzeug. 



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Blum, M. Soaring. 



Railroad and Engineering Journal (March 1891), New York. (lS*iJ 



BLUME. Plugelschraube mit Luftsacken als Treibvorrichtung fiir Luftschiffe^ 



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Blumenbach, Handbuch d. Naturgeschichte. 



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Board. Ballons a compartiments. 



Le Technolgiste, XXX vni, 1879, Paris, p. 589. (]»»^ 



BOAT driven by air propeller. 



Aer. World, Vol. 1, No. 5, 1902, Glenville, Ohio, p. 116. S (U*-* 



Bobeldijk, p. De luchtbal van U Sept. 1865. Eene nuts bijdrage. 



Medemblik, K. H. Idema, 1865, 8°. 



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Bock. Die Kraftmaschinen fiir das Kleingewerbe. 



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BOCK, AD. Priifung eines Richard'schen selbstregistrirenden Barometers fiir 

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BoDELio, HYACixTHE. Petite Promenade physique. Contains articles relating 

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Zeitschr. Luftsch., V Jahrg., 9 Heft, 1886, Berlin, pp. 248-252, figs. 5. S (19»» 



. Noch etwas iiber den Vogelflug. 



Zeitschr. Luftsch., V Jahrg., 12 Heft, 1886, Berlin, pp. 306-369. S (!««« 



Weitere Betrachtungen des Vogelfluges. 



Zeitschr. Luftsch., V Jahrg., 11 Heft, 1886, Berlin, pp. 322-324. S (!•>«« 



BiJROEN C. The International Polar Expeditions, 1882-1883. 



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 485. S 



BoRNSTEiN, R. See 949. 



