250 



other, that unless the two halves of the lower jaw are 

 separated at the symphysis, they cannot be dislocated at the 

 temporo-maxillary articulation. 



Dr. Gould read a letter from Dr. B. L. C. Wailes, of 

 Washington, Miss., containing notices of Fossils from the 

 Natchez bluffs and Vicksburg, specimens of which he had 

 sent to the Society. 



On motion of Dr. Gould, it was 



Voted, That the Secretary be directed to tender to the Asso- 

 ciation of Geologists and Naturalists the use of the Hall of the 

 Society, and of its Cabinet and Library, during their approaching 

 session in this city. 



Mr. Frederick Billaud was elected a Member of the So- 

 ciety. 



ADDITIONS TO THE CABINET. 



Casts of Fossil Shells from New Holland, collected by the 

 Exploring Expedition, and recently described by Mr. Dana, in 

 Silliman's Journal. From J. D. Dana, Esq., of New Haven. 



ADDITIONS TO THE LIBRARY. 



American Journal of Agriculture and Science, for July, 1847. 

 From the Editors. 



Siedhof. Deutschland's Stubenvogel. 12mo. Braunschweig. 

 1845. 



Proceedings of the Academy of Natural Sciences. Vol. I. 

 No. 5. Vol. III. Nos. 1, 2, and Title-page and Index to Vol. II. 

 From the Academy. 



Deleuze. Histoire et Description du Museum Royal d' His- 

 toire Naturelle. 2 vols. 8vo. Paris, 1823. From A. Vattemare. 

 By Exchange. 



