5G THE PHYSICAL FEATURES OF PEINCE GEORGe's COU^TTY 



Uhler^ p. R. l^otes and Illustrations to Observations on the 

 Cretaceons and Eocene Formations of Maryland. 



Trans. Md. Acad. Sci., vol, i, pp. 97-104. 



The Port Washington bluff and the Eocene and Miocene exposures at Upper 

 Marlboro are described. The Cretaceous strata at the former locality are 

 correlated with the lower and middle marl beds of New Jersey. 



1891. 



Clark, Wm. B. Correlation Papers — Eocene. 



Bull. U. S. Geol. Surv., No. 83, Washington, 1891, 173 pp. 2 maps. 



(Abst.) Johns Hopkins Univ. Cir. No. 103, vol. xii, 1893, p. 50. 



Contains a discussion of all the literature concerning the Eocene of the 

 United States published up to that time. The distribution and characteristics 

 of the Maryland Eocene deposits are briefly described. 



Clark, Wm. B. Report on the Scientific Expedition into Southern 

 Maryland. (Geology, W. B. Clark; Agriculture, Milton Whitney; 

 Archaeology, W. H. Holmes.) 



Johns Hopkins Univ. Cir. No. 89, vol. x, 1891, pp. 105-109. 



Contains a description of the Fort Washington bluff and also short descrip- 

 tions of the distribution and lithologic characteristics of the Mesozoic and 

 Cenozoic formations of the Coastal Plain. 



Dartox, E". H. Mesozoic and Cenozoic Formations of Eastern 

 Virginia and Maryland. 



Bull. Geol. Soc. Amer., vol. ii, 1891, pp. 431-450, map sections. 



(Abst.) Amer. Geol., vol. vii, 1891, p. 185. 



(Abst.) Amer. Nat., vol. xxv, 1891, p. 658. 



Contains a description of the Potomac, Severn (Marine Cretaceous), 

 Pamunkey (Eocene), Chesapeake (Miocene), and Appomattox (Lafayette) 

 formations as known at that time. 



Lindenkohl, a. Notes on the submarine channel of the Hudson 

 River and other evidences of Postglacial Subsidence of the Middle 

 Atlantic Coast Region. 



Amer. Jour. Sci. 3rd ser., vol. xli, 1891, pp. 489-499, pi. xviii. 



Some statements are made concerning the submerged channel of th*^ 

 Potomac River. 



McGee, W J. The Lafayette Fonnation. 

 12 An. Rept. U. S. Geol. Surv., part i, 1890-91. 

 Washington, 1891, pp. 347-521. 



The general characteristics of the entire Coastal Plain and of each of the 

 formations composing it are discussed at length. 



