74 A Bibliography, of the Geology, etc., of California. 



Descriptions of new Cretaceous fossils collected by the North- 

 western Boundary Commission on Vancouver's and Sucia 

 Islands; by F. B. Meek. Proc. Phila. Acad. Nat. Sci., 

 2d ser., Vol. 5, 1861, pp. 314-318. 



See also Bull. U. S. Geol. Sur. of the Territories, Vol. 2, 1876. 



Descriptions of new species of American Tertiary fossils and a 

 new Carboniferous Cephalopod from Texas; by W. M. 

 Gabb. Proc. Phila. Acad. Nat. Sci., 1861, pp. 367-372. 



The following California species are described in this paper : 

 Turbonilla aspera, n.sp., Miocene, from Santa Barbara. 

 Modelia striata, n.sp., Miocene, from Santa Barbara. 

 Sphenia bilirata, n.sp., Miocene, from Santa Barbara. 

 Venus rhysomia, n.sp., Miocene, from Santa Barbara. 

 Cardita monilicosta, n.sp., Miocene, from Santa Barbara. 

 Morrissia Horni, n.sp., Miocene, from Santa Barbara. 



Indication of an Elotherium in California; by Joseph Leidy. 

 Proc. Phila. Acad. Nat. Sci., 1868, p. 177. 



Elotherium superbus, n.sp., from Calaveras County. 



On mastodon remains; by Joseph Leidy. Proc. Phila. Acad. 



Nat. Sci., 1870, pp. 96-97. 

 On a mastodon discovered in Contra Costa, California. 



Vertebrate fossils from auriferous gravels; by Joseph Leidy. 

 Proc. Phila. Acad. Nat. Sci., 1870, p. 125. 



On an extinct whale from California; by E. D. Cope. Proc. 

 Phila. Acad. Nat. Sci., 1871, pp. 29-30. 



Remarks on extinct mammals from California; by Joseph Leidy. 

 Proc. Phila. Acad. Nat. Sci., 1872, p. 259. 



Extract of a letter relating to mammalian fossils in California; 



by Dr. L. G. Yates. Proc. Phila. Acad. Nat. Sci., 1874, 



pp. 18-21. 



This paper gives a list of localities— fossil elephas, and fossil 

 mastodon. 



The blue gravel of California; by E. Goldsmith. Proc. Phila. 

 Acad. Nat. Sci., 1874, pp. 73-74. 



Descriptions of new fossil shells from the Tertiary of California; 

 by R. E. C. Stearns. Proc. Phila. Acad. Nat. Sci., 1875, 

 pp. 463-464, pi. 27. 



Opalia varicostata, n.sp.; 0. anomala, n.sp. 



