1354.] 127 



the Pacific Railroad Route, under Lieut. Williamson, U. S. A. j" winch 

 was referred to Dr. Hallowell, Prof. Baird, and Dr. Leidy. 



Dr. Leidy also presented an addition to the paper of Drs. Shuruard 

 and Evans, on new fossil species from Nebraska, collected by the North 

 Pacific Railroad Expedition, under Gov. Stevens ; which was referred to 

 the Committee on the former portion of the paper. 



Also, by the same, a second paper from Messrs. Evans and Shumard, 

 entitled, " Descriptions of new fossil species from the fresh-water Ter- 

 tiary formation of Nebraska." Referred to Dr. Leidy, Mr. Conrad, 

 and Mr. Phillips. 



Dr. Leidy presented drawings of the dentition of a new genus and 

 species of extinct mammal from Nebraska, which he characterized under 

 the name of Dinictis fdina. The specimen was loaned by Prof. Hall, 

 of Albany. The head is about the size and general form of Machiarodus 

 primsevus. The genus holds the same relation to Putorius that Machia- 

 rodus does to Felis. 



August Sth. 

 Major J. Le Conte in the Chair. 



A letter was read from the Trustees of the New York State Library, 

 dated Albany, July 3, 1854, acknowledging the receipt of the Proceed- 

 ings, Vol. 7, No. 3. 



Dr. Leidy presented a paper for publication in the Proceedings, entitled, 

 " Synopsis of extinct Mammalia, the remains of which have been dis- 

 covered in the Eocene Tertiary of Nebraska;'' which was referred to Dr. 

 Genth, Dr. Rand, and Mr. Chas. E. Smith. 



August 15$. 

 Mr. Cassix in the Chair. 



A letter was read from the " Societe du Museum d'Histnire Naturelle 

 de Strasbourg," dated 2d Jan., 1854, transmitting several Vols, of their 

 Memoirs; also acknowledging the receipt of the Proceedings of the 

 Academy for 1852. 



A paper was presented from Mr. Chas. Girard, containing additional 

 descriptions of Fishes collected by Dr. Heermann, which was referred 

 to the Committee on the former portion of the paper. 



Also, a paper by the same, entitled, " Enumeration of Marine Fishes, 

 collected at San Francisco, Cal.j by Dr C. 13. Kennedy, Naturalist to 

 the Survey of the Pacific R. R. Route, under Lieut. A. W. Whipple." 

 Referred to Drs. Hallowell, Baird, and Leidy. 



Dr. Hallowell presented a paper for publication in the Journal, entitled, 

 "Contributions to South American Herpetology " which was referred 

 to Major Le Conte, Dr. Leidy, and Dr. Rand. 



