52 THE PLIOCENE AND PLEISTOCENE DEPOSITS OF MARYLAND 



Agriculture and Live Stock [of Maryland]. 



Maryland, its Resources, Industries, and Institutions. Baltimore, 1893, pp. 

 154-217. 



Gives many interesting facts on the soils of the State ; their distribution, formation, 

 and crops, pp. 181-211. 



Soils of Maryland. 



Monthly Rept. Md. State Weather Service, vol. iii, 1893, pp. 15-22, map. 

 Includes many mechanical analyses of soil. Map shows soil distribution. 



Some Physical Properties of Soils in their Eelation to 



Moisture and Crop Distribution. 



U. S. Dept. Agri., Weather Bureau, Bull. No. 4, Washington, 1893. 

 Uses many Maryland soils as illustrations. 



Williams, G. H. Mines and Minerals [of Maryland] . 

 Maryland, its Resources, Industries, and Institutions, Baltimore 1893, pp. 

 89-153. 



Brief description of Columbia brick clays. 



, and Clark, W. B. Geology [of Maryland]. 



Lafayette and Pleistocene of State quite fully described. 



1894. 



Clark, Wm. Bullock. The Climatology and Physical Features of 

 Maryland. 



1st Biennial Rept. Md. State Weather Service, 1894. 

 Lafayette and Columbia deposits briefly described. 



Darton, N. H. An outline of the Cenozoic History of a Portion of 

 the Middle Atlantic Slope. 



Jour. Geol., vol. ii, 1894, pp. 568-587. 



A general geographic study of the Tertiary, Pleistocene, and post-Pleistocene history 

 of the Maryland and Virginia Coastal Plain. Two maps and several sections. 



Artesian Well Prospects in Eastern Virginia, Maryland, 



and Delaware. 



Trans. Amer. Inst. Min. Eng., vol. xxiv, 1894, pp. 372-397, plates 1 and 2. 

 Lithological character considered and several borings described. 



Fredericksburg Folio. Explanatory sheets. 



U. S. Geol. Surv. Geol. Atlas, folio No. 13, Washington, 1894. 

 Brief epitomized discussion of the local geology, structure, and geological history of 

 the " quadrangle " studied. 



Keith, Arthur. Geology of the Catoctin Belt. 



14th Ann. Rept. U. S. Geol. Surv., 1892-93, Washington, 1894, part ii, pp. 

 285-395, maps and plates. 



House Exec. Doc, 53d Cong., 2d sess., vol. xvii, p. 285. 



(Rev.) Science, n. s. vol. ii, 1895, p. 97. 



Refers to Lafayette and Columbia deposits in the vicinity of Harpers Ferry and 

 discusses physiographic changes which took place during those epochs. 



