34 PHYSIOGRAPHY AND GEOLOGY OF THE COASTAL PLAIN PROVINCE. 



The Tertiary Geology of the Eastern and Southern United 



States. 



Jour. Acad. Nat. Sci., Phila., vol. ix, pp. 115-154, map, 1884. 



The geographical distribution of the Eocene and Miocene deposits are given. The 

 Eocene deposits are referred to the Eo-Lignitic and Buhrstone formations of the southern 

 states, while the Miocene deposits are grouped in the divisions of Marylandian and Vir- 

 ginian. The author thinks that possibly the Miocene deposits about Yorktown and Suffolk 

 represent a later division which he has called Carolinian because of its development in 

 the Carolinas. 



EoGERS, Wm. B. a Eeprint of Annual Reports and other Papers on the 



Geology of the Virginias. 



xv+832 pp.. pis., maps, New York. 1884. 



The various articles contained in this volume in which references are made to the 

 Coastal Plain province have been given on preceding pages. 



1885 

 Harrison, Eandolph, Handbook of Virginia. 



4th edit., 1S2 pp.. map. pi., Riclimond. ISSo. 

 6th edit., 1886. 

 Not seen. 



1888 



Heilprin. a. The Classification of the Post-Cretaceous Deposits. 



Proc. Acad. Nat. Sci., Phila., pp. 314-322, 1888. 



The Eocene ia divided Into the Bo-Lignltic, Buhrstone, Claibornian, and .Tacksonian 

 and the Miocene into the Marylandian, Virginian, and Carolinian. 



McGee. W J The Columbia Formation. 



Proc. Amer. Assoc. Adv. Sci., vol. xxxvi, pp. 221-222, 1888. 



The author divides the Pleistocene into two classes, the delta deposits laid down 

 along the inland margin of the Coastal Plain by the Middle Atlantic slope rivers during 

 a period of submergence ranging from 100 to 450 feet, and the terraced littoral deposits 

 connecting and graduating into the deltas and covering the remainder of the Coastal 

 Plain to the Atlantic Ocean. A bipartition of the deposits is frequently apparent and 

 these two divisions are supposed to be contemporaneous with two ice-sheets which cov- 

 ered the northern portion of the country during Pleistocene time. 



Three Formations of the Middle Atlantic Slope. 



Amer. Jour. Sci.. 3d ser., vol. .xxxv, pp. 120-143, 328-330. 367-388. 448-466, 

 pis. 2, 6-7: Abstr. Nature, vol. xxxviii, pp. 91, 190; Amer. Geol., vol. ii, pp. 

 129-131, 1888. 



The three formations which are described in considerable detail are, (1) the Potomac 

 (now divided into four formations) ; (2) the Appomattox (now called the Lafayette) ; 

 and (3) the Columbia (now divided into three formations). The views expressed in this 

 paper are but slightly at variance with those held by the authors of this report. 



