1 GEOLOGICAL AND PALEONTOLOGICAL RELATIONS 



1849. 



Bailey, J. W. New Localities of Infusoria in the Tertiary of 

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Amer. Jour. Sci., 2nd ser., vol. vii, 1849, p. 437. 



D'Orbigny, a. Note sur les Polypiers fossiles. 



1850, 

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1851. 

 Bailey^ J. W. Miscellaneous Notices. 3 Fossil Infusoria of Mary- 

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Amer. Jour. Sci., 2nd ser., vol. xi, 1851, pp. 85-86. 



1852. 

 Conrad^ T. A. Keinarks on the Tertiary Strata of St. Domingo and 

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Proc. Acad. Nat. Sci., Phila., vol. vi, 1852, pp. 198-199. 



Higgins^ James. The Second Eeport of James Higgins, M. D., State 

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Md. House of Delegates, Jan. Sess., 1852 [C], Svo, 126 pp. 



Johnson, Alexander S. Notice of some undescribed Infusorial 

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Amer. Jour. Sci., 2nd ser., vol. xiii, 185:i, p. 33. 



Lyell, Chas. Travels in North America, in the years 1841-2; with 

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1853. 



Conrad, T. A. Monograph on the genus Fulgur. 

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Hitchcock, E. Outline of the Geology of the Globe and of the United 

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2nd edit., 1854; 3rd edit., 1856. 



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

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