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_ Lea, Henry C. Description of some new Fossil Shells from the Ter- 

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Lyell, Cpias. Travels in North America, with Geological Observa- 

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Another edit., 2 vol., 12°, London, 1845. Another Edit. 2 vols., New York 



w L l^T*^ ^"^"'^ ^^^*- ^^^'^"^ 1855. German edit., translated by E T. 

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On the Miocene Tertiary Strata of Marvland, Virginia and of 



North and South Carolina. 



Quart. Jour. Geol. Soc, London, vol. i, 1845, pp. 413-427. 

 Proc Geol. Soc, London, vol. i, 1845, pp. 413-427. 



1846. 



Conrad T A. Observations on the Eocene formation of the Unit-d 

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■ Tertiary Fossil Shells. 



Proc Acad. Nat. Sci., Phila., vol. iii, 1846, pp. 19-27, 1 plate 



1847. 



Proc Acad. Nat. Sci., Phila., vol. iii, 1846-7, pp. 266-268. 



1848. 



GiBBES, p. W. Monograph of the fossil Squalidae of the United 

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Jour. Acad. Nat. Sci., Phila., 2nd ser., vol. i, 1348, pp. 139-148, 191-206. 



Lea, Henry C. Catalogue of the Tertiary Testacea of the United 

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Proc Acad. IN at. Sci., Phila., vol. iv, 1848, pp. 95-107. 

 d 



