28 PHYSIOGRAPHY AXD GEOLOGY OF THE COASTAL PLAIN PROVINCE. 



1850 



Wy'man, Jeffries. Notice of Eemains of Vertebrated Animals found 

 at Kichmond, Virginia. 



Amer. Jour. Sci. (n. s.) , vol. x, pp. 228-235, 1850. 



Bones of seals, whales, crocodiles, and many fishes are described from the Tertiary 

 deposits along Shockoe Creek, Richmond. Most of them were probably derived from the 

 Miocene strata, but some may have been contained in the Eocene deposits. 



1852 



Lesquereux, Leo. Ueber die Torfbildung un grossen Di.smal- Swamp. 



Geol. Gesell. Zeit., vol. iv, pp. 695-697, 1852. 



The vegetation of the Dismal Swamp is described and the formation of the vegetable 

 debris underlying the swamp discussed. 



1853 



CoNRADj T. A. Monograph on the genus Fulgur, 

 Proc. Acad. Nat. Sci., Phila., vol. vi, pp. 316-319, 1853. 

 Fulgur maximum and F. incile from Yorktown are described. 



Hitchcock, Edward. Outline of the Geology of the Globe and of the 



United States in particular with two Geological maps, etc. 



8°. Boston. 1853; 2d edit., 1854: 3d edit., 1856. 



Brief descriptions of the Tertiary strata of Virginia are given. 



Marcou, Jules. A Geological Map of the United States and the British 

 Provinces of ISTorth America with an explanator}^ text, etc. 

 8°, Boston, 1853. 

 Contains brief references to Virginia. 



1854 



Wymax, Jeffries. Beak of a Fossil Fish (Icthiophorus) found in the 

 Tertiary Deposit at Eichmond, Va.. communicated Oct. 6, 1852. 

 Proc. Boston Soc. Nat. Hist., vol. iv, p. 260, 1854. 

 Specimen said to resemble a sword-fish and probably belongs to undescribed species. 



1856 



Ehrenberg, C. G. Zur Mikrogeologie das Erden und Felsen Schaffende 

 Wirken des unsichtbar kleinen selbstandigen Lebens auf der Erde. 



2 vols, and atlas, roy. folio, 41 pis. Leipzig, 1854-56. 



This work contains admirable descriptions and illustrations of over 100 species of 

 diatoms from the infusorial earth of Richmond and other places in Virginia. 



