46 THE PHYSICAL FEATURES OF CALVERT COUNTY 



1888. 



Clark, Wm. B. On three Geological Excursions made during the 

 months of October and November, 1887, into the southern counties of 

 Maryland. 



Johns Hopkins Univ. Cir. No. 63, vol vii, 1888, pp. 65-67. 



Uhler, p. E. Observations on the Eocene Tertiary and its Cretaceous 

 Associates in the State of Maryland. 



Trans. Md. Acad. Sci., vol. i, 1888, pp. 11-32. 



1890. 



Clark, Wm. B. Third Annual Geological Expedition into Southern 

 Maryland and Virginia. 



Johns Hopkins Univ. Cir. No. 81, vol. ix, 1890, pp. 69-71. 



Dall, Wm. H. Contributions to the Tertiary Fauna of Florida. 

 Trans. Wagner Free Inst. Sci., Phila., vol. iii, 1890-1895, 570 pp. 



Day, D. T. x\brasive Materials. 



Mineral Resources U. S., 1888, Washington, 1890. 



Uhler, P. E. Notes and Illustrations to " Observations on the Cre- 

 taceous and Eocene Formations of Maryland." 

 Trans. Md. Acad. Sci., vol. i, 1890, pp. 97-104. 



1891. 



Clark, Wm. B. Eeport 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. 



Darton, N. H. Mesozoic and Cenozoic Formations of Eastern Vir- 

 ginia and Maryland. 



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

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

 Amer. Nat., vol. xxv, 1891, p. 658. 



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

 Eiver and other evidences of postglacial subsidence of the middle Atlantic 

 coast region. 



Amer. Jour. Sci., 3d ser., vol. xli, 1891, pp. 489-499, 18 plates. 



McGee, W J The Lafayette Formation, 



12th Ann. Rept. U. S. Geol. Surv., 1890-91, Washington, 1891, pp. 347-521. 



