BIBLIOGRAPHY OF AERONAUTICS — BROCKETT 689 



Problem (The) of fight: Ballooning in arctic exploration. 



Quart. Journ. Sci., Ill, Vol. 1, 1879, London, p. 163. (9991 



Problems for aeronauts. 



Aer. World, Vol. 1, No. 7, 1903, Glenville, Ohio, pp. 149-150, ill. S (9992 



Proceedings of the International Conference on aerial Navigation, held in 

 Chicago Aug. 1, 2, 3 and 4, 1893. 



New York, 1894, 8°, pp. 429, ill. (9993 



PR0c£:s-verbal de la stance des Societies Technique et Geographique Imperiales 

 Russes reunies pour souhaiter la bienvenue aux membres du IVe congrgs 

 de la commission scientifique Internationale de navigation aerienne tenue 

 le 17-30 aoGt 1904. 



L'Agronaute, 38'^ annee. No. 2 (lev. 1905), Paris, pp. 32-86. S (999-4 



PROcts-verbal tres interessant du voyage aerien qui a eu lieu aux Champs- 



Elysees, le 18 septembre 1791, jour de la proclamation de la constitution. 



Paris, 1791, 8°, pp. 18. (9995 



PBOCES-verbaux et details des deux voyages aeriens faits d'apres la decouverte 

 de MM. Montgolfier. 



A Bruxelles, et se vend a Paris chez Bailly, et chez I'auteur, 1783, p. 23, 18% cm., 

 ills. t-p. " Lettre de M. le marquis d'Arlandes il M. Faujas de Saint-Fond (contenant 

 les details de son voyage)": p. 8-17. No. 9 in a volume of pamphlets lettered: 

 Ballons. LC (9996 



Proctor, D. R. Proctor's air piercer. 



Aer. World, Vol. 1, No. 7, 1903, Glenville, Ohio, pp. 148-149, ill. S (9997 



Proctor, R. A. Plight of certain sea birds. 



Fifteenth Annual Report of the Aeronautical Society of Great Britain, 1880, Green- 

 wich, pp. 31-89. S (9998 



Proctor, Ricpiard A. Suggestion on the resistance of planes caused to traverse 

 the air. 



SLxth Annual Report of the Aeronautical Society of Great Britain, 1871, Greenwich, 

 pp. 6-9. S (9»99 



Production de I'hydroggne par I'glectrolyse pour le gonflement des ballons. 



Cosmos, XIII, 1889, Paris, p. 123. (lOOOO 



Progetto di dirigibile Sig. Dumas. 



Boll. See. Aer. Ital., Anno III, N. 7-9 (Lugl.-Sett. 1906), Roma, p. 255. S (lOOOl 



Programme des concours de cerfs-volants scientiflques. 



L'Afironaute, 38<' annSe, No. 2 (f6v. 1905), Paris, pp. 36-39. S (lOOOa 



" Progres, le." See 3263. 



Progr£;s (Les) de I'aviation par le vol plane. 



Rev. d'Art., T. LX\'1I, 1, 1905, Paris, pp. 44-74 F. (10003 



Progbessi (I) degli idroplani. 



Boll. Soc. Aer. Ital,, Anno m, N. 7-9 (Lugl.-Sett. 1906), Roma, pp. 249-251, ill. 

 5. S (10004 



