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Biographic cambresienne au XI X e siecle. Le capita ine Charles 

 fle'ranguier, gouverncur de Breda; par M. C.-A. Lefebvre. Cam- 

 brai, 1850; \ broch. in-8. 



Observations made at the magnetical and meteorological obser- 

 vatory at Hobarton, in Van Diemen Island, and by the antartic 

 naval expedition, printed by order of her Majesty's governernent 

 under the superintendence of lieut. -colonel Edward Sabine. 

 Vol. I. London, 1850; 1 vol. in-4". 



Proceedings of the zoological Society of London. Part. XVII, 

 4849. Reports of the council and auditors of the zoological 

 Society of London, read at the annual general meeting. April 29, 

 1850. Londres, 1850; 2 broch. in-8. 



The journal of the royal asiatic Society of Great Britain and 

 Ireland. Vol. XII, part. II. Londres, 1850; 2 vol. in-8. 



The quarterly journal of the geological Society. Vol. VI, n 24. 

 Londres ; 1 vol. in-8. 



The annals and magazine of natural history including zoo- 

 logy, botany and geology. Janv.-June 1850. Londres, 1850; 

 6 broch. in-8. 



Report of the nineteenth meeting of the british Association for 

 the advancement of science. Londres, 1850; 1 vol. in-8". 



Memoirs of the american Academy of arts and sciences. New 

 series. Vol. Ill an vol. IV, part. I. Boston, 1848-1849; 2 vol. 

 in-8. 



The american journal of science and arts. Conducted by pro- 

 fessors B. Silliman, B. Silliman Jr., and James Dana. Second 

 series, n 29. September 1850. New-Haven; 1 broch. in-8. 



Berichte iiber die Verhandlungen der koniglich-sachsischen 

 Gesellscliaft der Wissenschaften zu Leipzig. Mathematisch-phy- 

 sische Classe. 1849, heft. I, II und III; 1850, heft. I. Leipzig, 

 4 broch. in-8. 



Uber die Grundformen der Linicn der drilten Ordnung von 

 A.-F. Mobius. Leipzig, 1849; I broch. in-4. 



Uber die cyclocenlrische Conchospir ale und iiber das Wendunns- 



