X. 



Ueberdie bestimmung der Massen und der Tragheitsmomente symmetrischen 

 rotationskorper von Ungleichformiger dicktigkeit. Von 0. Schlomilch. From 

 the same. 



Ueber einige Allgemeine Reihenentwickelungen und deren Anwendung auf 

 die Elliptischen Funktionen. Von 0. Schlomilch. From the same. 



Belfast Natural History and Philosophical Society. (Proceedings for 1852, '53 

 and part of 1854.) From the Society. 



On the Albert Mine, Hillsboro', N. B. By J. W. Dawson, of Pictou, N. S. 

 From the Author. 



On the Coal Measures of the South Joggins, N. S. By J. W. Dawson. From 

 the same. 



Annual Report of the Trustees of the New York State Library, March, 1851. 

 From the Trustees. 



History of Vermont, natural, civil and statistical. By Zadock Thompson. 

 8vo. From the Author. 



Report of an Expedition down the Zuniand Colorado Rivers. By Capt. L. Sit- 

 greaves. 8vo. From Col. J. J. Abert. 



Notes and Commentaries during a voyage to Brazil and China in 1848. By 

 W. S. W. Ruschenberger. 8vo. From the Author. 



The Principles of Botany, as exemplified in the Phanerogamia. By Harland 

 Coultas. 8vo. From the Author. 



An additional collection of Autographs of distinguished scientific men. From 

 Dr. John Torrey. 



Odontographie. Vergleichende Darstellung des Zahnsystemes der lebenden 

 und fossilen Wirbelthiere. Von C. G. Giebel. 5 lief, 4to. From Dr. Wilson. 



Die Wichtigsten formen des Thierreichs. Von Dr. Hermann Pompper. Folio. 

 From the same. 



Comptes Rendus. Tome 38, Nos. 14 IS. From the same. 



London Athenaeum for April, 1854. From the same. 



Annales de la Societe Entomologique de France, 1853, No. 4. Svo. From the 

 same. 



June 20th. 



Natural History of the Red River of Louisiana, (reprinted from the Report of 

 Capt. Marcy.) 



Descriptions of new genera and species of North American Frogs. By S. F. 

 Baird. From the Author. 



Descriptions of new species of Fishes from Texas, New Mexico and Sonora. 

 By S. F. Baird and C. Girard. From the Authors. 



Descriptions of new species of Reptiles, collected by the U. S. Expl. Exp., 

 Capt. Wilkes. By Chas. Girard. From the Author. 



Virginia Medical and Surgical Journal, No. 14. From the Editors. 



Einige Beobachtungen uber Clymenien ; mit besonderer Riicksicht auf die 

 Westphalischen Arten. Von Dr. Guido Sandberger in Wiesbaden. From the 

 Author, through Dr. Genth. 



Dr. Wilson presented the following on the usual condition : 



Cornptes Rendus. Tome 38, Nos. 19 and 20. 



London Athenaeum for May, 1854. 



Journal of the Franklin Institute for June, 1854. 



Malakozoologische Blatter fur 1854. 



Nouv. Suites a Buffon. Erpetologie generale, ou hist. nat. des Reptiles. Tome 

 7, lme partie. Par MM. Dumeril et Bibron. Svo. 



Notice historique de la Menagerie des Reptiles du Museum d'hist. nat., et ob- 

 servations qui y'ont ete recueillies par le Dr. A. Dumeril. 



