MARYLAXD GEOLOGICAL SURVEY 43 



1843. 



Conrad, T. A. Description of a new Genus, and Twenty-nine new 

 Miocene and one Eocene Fossil Shells of the United States. 

 Proc. Acad. Nat. Sci., Phila.. vol. i, 1843, pp. 305-311. 



1844. 

 EoGERS, ^YM. B. [Tertiary Infusorial formation of ^Maryland.] 

 Amer. Jour. Sci., vol. xlvi, 1844, pp. 141-142. 



1845. 

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

 tion of the United States. No. 3. 1845. pp. 57-80. Plates xxx-xlv. 

 (Repub.) by W. H. Dall, Washington, 1893. 



Ltell, Chas. On the Miocene Tertiary Strata of Maryland, Vir- 

 ginia 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. 



1849. 

 Bailey, J. W. New Localities of Infusoria in tlie Tertiary of Mary- 

 land. 



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



GiBBES, E. W. Monogi-aph of the fossil Squalidae of the United 

 States. 



Jour. Acad. Nat. Sci., Phila., 2 ser., vol. i, 1849, pp. 191-206. 



1853. 

 Fisher, E. S. Gazetteer of the State of Maryland compiled from 

 the returns of the Seventh Census of the United States. New York 

 and Baltimore, 1852, 8vo, 122 pp. 



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

 Agricultural Chemist, to the House of Delegates of Maryland. 8vo. 

 118 pp. Annapolis, 1852. 



Md. House of Delegates, Jan. Sess., 1852 [C], 8vo, 126 pp. 



1856. 

 HiGGiNs, James. Fifth Agricultural Beport of James Higgins, State 

 Chemist, to the House of Delegates of the State of Maryland. 8vo. 

 91 ])p. Annapolis, 1856 (publislied separately). 



Also Md. House of Delegates, Jan. Sess., 1856. 



Md. Sen. Doc. 



Another edition, pp. 15-18 omitted, 8vo, 90 pp. 



