42 THE CAMBRIAN AND ORDOVICIAN DEPOSITS or MARYLAND 



1899 



ABBE, CLEVELAND, JR. A general report on the physiography of Mary- 

 land. 



Md. Weather Service, vol. i, pp. 41-216, pis. iii-xix, figs. 1-20, 1899. 

 Discusses the physiographic features of the Piedmont Plateau and Appalachian 

 provinces in Maryland. 



CLARK, WILLIAM BULLOCK. The relations of Maryland topography, 

 climate, and geology to highway construction. 



Md. Geol. Surv., vol. iii, pp. 47-106, pis. iii-xi, figs. 1-3, 1899. 



1900 



PROSSER, CHARLES S. The Shenandoah limestone and Martinsburg 

 shale. 



Jour. Geol., vol. viii, pp. 655-663, figs. 1-4, 1900. 



Describes the lithologic and faunal characters of the formations In adjacent portions 

 of Maryland and West Virginia. 



ULRICH, E. 0., and SCHUCHERT, CHARLES. Paleozoic Sjas and barriers 

 in eastern North America. 



N. Y. State Mus., Bull. No. 52, pp. 633-663, 1 pi. 



1906 



CLARK, WILLIAM BULLOCK. Report on the physical features of Mary- 

 land, together with an account of the exhibits of Maryland mineral 

 resources made by the Maryland Geological Survey. 



Maryland Geol. Survey (Special Publications, vol. vi, pts. 1 and 2), 284 pp., 

 30 pis., 19 figs., geol. map. (in pocket), 1906. 



A general account of the physiography, geology and mineral resources of the state. 



1907 



MARYLAND GEOLOGICAL SURVEY. 



(Geological) map of Maryland, prepared by Maryland Geological Survey, 

 Wm. Bullock Clark, State Geologist, 1907, Scale 1 : 187, 500. 



BASSLER, BAY S. Cement and cement materials (of Virginia). 

 In Watson, T. L., Mineral Resources of Virginia, pp. 86-167, 10 pis., 14 figs., 

 1907. 



