1851.] 



307 



Noveniber 4th, 1851. 

 Vice-President Bridges in the Chair. 



Letters were read : 



From Isaac Chipman, Esq., dated Acadie College, October 3d, 1851, 

 ackuowledging the receipt of his notice of election as a Correspondent, 

 and announcing that he had transmitted a box of minerals from his 

 vicinity for the Academy. 



From the Librarian of the British Museum, dated October 7th, 1851, 

 acknowledging the receipt of No. 9, Vol. 5, of the Proceedings. 



From Mr. William H. Towson, of Philadelphia, stating that the col- 

 lection of minerals belonging to the late Dr. William Grambcl, was for 

 sale. Referred to the Mineralogical Committee. 



Dr. Leidy observed that he had examined the fossil saurian bones, consisting of 

 two teeth, two vertebrae, a fragment of a rib and an ungual phalanx, presented to 

 the Academy October 21st, by Mr. Robert H. Nash, who obtained them from the 

 Miocene formation of Westmoreland county, Virginia. Dr. Leidy found them to 

 belong to a new extinct species of Crocodile, for which he proposed the name of 

 Crocodilus antiquus. 



Mr. Theodore F. Moss read some remarks on the Geology of Texas. 



Dr. Fisher announced that the Trustees of the University of Pennsyl- 

 vania had granted the use of the College Hall to the Academy, for the 

 purpose of hearing the Memoir of the late Dr. Morton read by Dr. 

 Meigs. 



November 11th. 

 Vice-President Bridges in the Chair. 



Dr. Le Conte, of New York, read a paper, intended for publication in 

 the Proceedings, entitled " Synopsis of the species of Donacia, by John 

 L. Le Conte, M. D.," which was referred to a Committee consisting of 

 Dr. Leidy, Dr. Hallowell, and Mr. Haldeman. 



Dr. Le Conte read a second paper, also intended for publication in the 

 Proceedings, entitled " Zoological Notes," which was likewise referred to 

 the above Committee. 



A letter was read from Mr. Alexander Vattemare, dated Paris, Octo- 

 ber 19th, 1851, announcing that he had addressed to the Academy a 

 box, containing three crania, procured from the Museum of Natural His- 

 tory of Paris, at the request of the late Dr. Morton, and calling the at- 

 tention of the Academy to the importance of a universal system of inter- 

 national exchanges between scientific institutions. 



Letters were also read : 



From the Trustees of the New York State Library, dated Albany, 

 November Sd, 1851, acknowledging the receipt of No. 10, Vol. 5, of the 

 Proceedings. 



From the Librarian of the Boston Society of Natural History, dated 



raOCEED. ACAD. ^AT. SCI. OF FBILADSLFUIA. VOL. V. NO. XII. 40 



