318 



Napoleon and his Marshals. 2 vols. 12mo. Philadelphia, 

 1848. 



Gibbon's Decline and Fall of the Roman Empire. 8vo. Lon- 

 don, 1840. 



Robertson's History of America. 3 vols. 8vo. London, 1792. 



Synopsis Plantarum Fossil ium. Auctore Fr. Unger. 12mo. 

 Leipsioe, 1845. 



Synopsis Florre Germanicss et Helvetia), Auctore D. Guil. 

 Dan. Jos. Koch. Parts 1, 2, 8. Leipsire, 1843-45. 8vo. 



Die Wirbelthiere Europas. Von A. Graf Keyserling und Pro- 

 fessor J. H. Blasius. Braunschweig, 1840. 8vo. 



Naumann's Naturgeschichte der Vogel Deutschlands. 12 vols. 

 8vo. Leipsice. 1820. 



Novorum Actorum Academise Coesariaj Leopoldino-Carolina^ 

 Naturae curiosorum Voluminis Undevicesimi Pars Posterior. 4to. 

 Vratislavise et Bonnse, 1842. 



Aussereuropaische Zweiflugelige Insccten ; von C. R. W. 

 Wiedemann. Hamm. 1830. 2 vols. 8vo. 



Die Schmetterlinge von Europa ; von Ochsenheimer und 

 Treitschke. Leipzig. 1807-35. 10 vols. (17 parts) 8vo. 



Annalen der Physik und Chemie. Von J. C. Poggendorff. 

 Nos. 1-12. Band. 75-6. 8vo. Leipzig, 1848-9. 



Neues Jahrbuch fur Mineralogie, Geognosie, Geologic, und 

 Petrefaktenkunde. Von Dr. K. C. Leonhard und Dr. H. G. 

 Bronn. Heft. 1,5,6,7. Stuttgart. 1848-9. 



Martin's Introduction to History of Mammiferous Animals, &c. 

 8vo. London. 1841. 



Memoirs of the Geological Survey of Great Britain. 3 vols. 

 8vo. London, 1846. 



July 3, 1850. 

 Dr. Charles T. Jackson in the Chair. 

 Present, fifteen members. 



As the Secretary would be absent for some months, Dr. 

 S. Kneeland, Jr. was chosen Secretary, ^ro iem. 



