MARYLAND GEOLOGICAL SURVEY 45 



Ducatel, J. T. Annual Report of the Geologist of Maryland, 1838. 

 [Annapolis, 1839.] 8vo, map and illustrations. 33 pp. 

 Md. Pub. Doc, Dec. Sess., 1838. 

 Brief note on soils found on river neck in Harford and Baltimore counties. 



1844. 



Rogers, H. D. Address delivered at the Meeting of the Association 

 of American Geologists and Naturalists. 



Amer. Jour. Sci., vol. xlvii, 1844, pp. 137-160, 247-278, 



Discusses briefly the deposits at Wailes Bluff near Cornfield Harbor. Regards them 

 post-Pliocene and Pleistocene. 



1852. 



Desor, E. Post Pliocene of the Southern States and its relation 

 to the Laurentian of the North and the Deposits of the Valley of the 

 Mississippi. 



Amer. Jour. Sci., 2d ser., vol. xiv, 1852, pp. 49-59. 



Refers to deposits at Wailes bluff near Cornfield Harbor. Regards them as post- 

 Pliocene. 



1856. 



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

 United States in particular, with geological maps, etc. 8vo. Boston, 

 1856 (3d Edition). 



Mentions remains of Elephas primigenius which have been found in " post-pliocene " 

 deposits of Maryland. 



1860. 



Tyson, P. T. Eirst Report of Philip T. Tyson, State Agricultural 

 Chemist, to the House of Delegates of Maryland, Jan. 1860. 8vo. 

 145 pp. Annapolis, 1860. Maps. 



Md. Sen. Doc. [E]. Md. House Doc. [C]. 



Discusses Post-Tertiary deposits of Worcester, Somerset, and Dorchester counties. 



1869. 



Leidy, J. The Extinct Mammalian Fauna of Dakota and Nebraska, 



including an account of some allied forms from other localities, [etc.]. 

 Jour. Acad. Nat. Sci., Phila., n. s. vol. vii, 1869, pp. 255-256. 

 Describes elephants' teeth from Talbot Co. 



