GEOLOGICAL LITERATURE OF THE VIRGINIA COASTAL PLAIN. 39 



1861 



Conrad, T. A. Fossils of the (Medial Tertiary or) Miocene rormation 

 of the United States. 



No. 4, pp. 81-89, pis. 45-49. Index to parts 1-4, Phila., 1861 (?) Republished 

 by W. H. Dall, Washington, 1893. 



Fossils from Petersburg, Yorktown, Smithfield and Sufifolk are described and figured. 



EoGERS, W. B. Infusorial Earth from the Tertiary of Virginia and 

 Maryland. (Eead May 4, 1859.) 



Proc. Boston Soc. Nat. Hist., vol. vii, pp. 59-64, 1861. 



The stratigraphic relations, the lithologic characters, and the fossil contents of the 

 diatomaceous earth strata exposed along Shockoe Creek, Richmond, are described in con- 

 siderable detail. 



1863 



Conrad, T. A. Catalogue of the Miocene Shells of the Atlantic Slope. 

 Proc. Acad. Nat. Sci., Phila., vol. xiv, pp. 559-582, 1863. 



Descriptions of New, Eecent, and Miocene Shells. 



Proc. Acad. Nat. Sci., Phila., vol. xiv, pp. 583-586, 1863. 

 A few new Miocene shells from Virginia are described. 



1864 



]\Ieek, F. B. Check List of the Invertebrate Fossils of North America. 

 Miocene. 



Snaith, Misc. Coll., vol. vii, No. 183, 34 pp., 1864. 



1866 



Conrad, T. A. Illustrations of Miocene Fossils with Descriptions of 

 New Species. 



Amer. Jour. Conch., vol. ii, pp. 65-74, pis. 3, 4, 1866. 



Some new species of shells from Smithfield, Yorktown, and James River are described 

 and figured. 



Descriptions of New Species of Tertiary, Cretaceous, and Re- 



cent Shells. 



Amer. Jour. Conch., vol. ii, pp. 104-106, 1866. 



Two new Miocene molluscan shells from Virginia are described. 



Credner, Hermann. Geognostische Skizzen aus Virginia, Nord 



Amerika. 



Geo!. Gesell. Zeits., vol. xviii, pp. 77-85, 1866. 



Reference is made to the diatomaceous earth at Richmond, and the characteristics 

 of the Dismal Swamp are described. 



