MARYLAND GEOLOGICAL SURVEY 53 



\\ iiitney, Milton, and Key, Sotiioron. Further Investigations on 



the Soil of Maryland. 



Md. Agri. Exper. Sta., Bull. No. 29, College Park, 1894, 21 pp. 



Brief reference to Lafayette and Pleistocene deposits and their relation to soils. 



1895. 



Clark, Wm. B. Description of the Geological Excursions made dur- 

 ing the spring of 1895. 



Johns Hopkins Univ. Cir. No. 121, vol. xv, 1895, p. 1. 

 Summary statement concerning local geology. 



Ward, Lester F. The Potomac Formation. 



15th Ann. Rept. U. S. Geol. Surv., 1893-94, Washington, 1895, pp. 307-397, 

 plates. 



Columbia deposits overlying the Potomac formations are given in some sections. 



1896. 



Clark, Wm. B. The Eocene Deposits of the Middle Atlantic Slope 

 in Delaware, Maryland, and Virginia. 



Bull. U. S. Geol. Surv. No. 141, 1896, 167 pp., 40 plates. 

 House Mis. Doc, 54th Cong., 2d sess., vol. — , No. 31. 

 Brief account of Lafayette and Pleistocene deposits. 



Darton, 1ST. H. Artesian Well Prospects in the Atlantic Coastal Plain 



Region. 



Bull. U. S. Geol. Surv. No. 138, 1896, 228 pp., 19 plates. 

 House Misc. Doc, 54th Cong., 2d sess., vol. — , No. 28. 

 Considerable detailed local information. Md. ref. 22, 124-155. 



Nomini Folio, Explanatory sheets. 



U. S. Geol. Surv., Geol. Atlas, folio 23, Washington, 1896. 



Brief epitomized account of the geology of the " quadrangle " studied. 



Fontaine, Wm. M. The Potomac Formation in Virginia. 

 Bull. U. S. Geol. Surv., No. 145, 1896, 149 pp., plates. 

 House Misc. Doc, 54th Cong., 2d sess., vol. — , No. 35. 

 Pleistocene deposits of Fort Washington bluffs are briefly mentioned. 



1898. 



Abbe, Cleveland, Jr. An Episode during the Terrace Cutting of 



the Potomac. 



Johns Hopkins Univ. Cir. No. 137, vol. xv, 1898, pp. 16-17. 



Describes a cave in the vicinity of Cumberland, Md., which he thinks was cut during 

 one of the terrace forming epochs. 



