MARYrAND nKOI.Ofllf A f, FJlIfVKV 33 



The Eocene Deposits nl' ihc Middlr Ailantic Slojic in Dela- 

 ware, Maryland and Virginia. 



Bull. Ml, V. S. (;col. Survey, isuii. KIT pp. 10 |)l;ites. 



A general disoussloii of the geological features, (llslrlbiition, <-liaraeler iiiiil coiTclallon 

 of the deposits, wltli a description of the contained fossils. A nnmlii-r of new species 

 are added. 



Outline of ])i-cs('nt k'UMwIcdo-c of ilic I'liysical Features of 



Maryland, cml)raeinji an ai-cnunl (d' I he l'liy>i(i,L:i-a|)liy, Geology, and 

 IMineral Eesourccs. 



]\rd. (lool. Survey, vol. i, 1897, p]). 195, 190, 217. 

 The Eocene deposits of the state are described. 



Collection of Eocene Fossils. 



Johns Hopkins Univ. Circ, vol. xviii, 1898, No. 137, p. 18. 



The author substitutes the name Pecteii daUi for I'ecten macvK} whidi was ali'cMiiy 

 pre-empted. 



Cleaveland, Parker. — An elenieiitai-y treatise on mineralogy and 



geology. Eemarks on the geology of the United States explanatory of 



the subjoined geological map, Boston, 1822, 785 pp. 



The author defines the limits of the " alluvial deposits " and in general terms 

 describes their lithological character. 



Conrad, T. A. On the geology and organic remains of a part of the 



peninsula of Maryland. 



Jour. Acad. Nat. Sci.. Phila., vol. vi, 1S:!0, pp. 20.5-217. 



Reference is made to the deposits of Fort "Washington and Piscataway. and correla- 

 tion proposed with London Clay of England. The paper also contains original descrip- 

 tions of Monodonla glandicla, TurritcUa mortnin. CucuUata (jiiinntca, and CraKttatella 

 alaeformix from this region. 



Fossil shells of the Tertiary formations of Xorth America, 



1832-1835, 56 pp. (including republication No. 3), 20 pis. 



Tlie author regards the deposits in the vicinity of Fort Washington as " Middle 

 Tertiary," and correlates them with the London Clay, Calcaire gi-o><sier and Claiborne 

 beds. He also describes Cardita platn'costa and TiirriteUa mortoni from Piscataway. 



- — ■ Observations on the Tertiary and more recent formations of 



a portion of the Southern States. 



Jour. Acad. Nat. Sci., Phila., vol. vii, 1834, pp. 116-129. 



Mention is made of the deposits of Fort Washington, which are considered younger 

 than the strata at Claiborne, Ala., perhaps Miocene in age. 



Observations on the Tertiary Strata of the Atlantic Coast. 



Amer. Jour. Sci., vol. xxviii, 1833, pp. 104-111. 



Author states that there are no Eocene species common to the Pliocene. 



Observations on a portion of the Atlantic Tertiary region. 



Trans. Pennsylvania Geol. Soc, vol. i, 1835, pp. 335-341. pi. xiii. 

 The deposits at Upper Marlboro and Piscataway, and City Point. Va., are considered, 

 and Panopaca eloncjata and Titnitella humerosa from Piscataway described. 

 3 



