MARYLAND GEOLOGICAL SURVEY 47 



WooLMAN, Lewis. Artesian wells and water-bearing horizons of 

 Southern New Jersey (with a "note on the extension southward of 

 diatomaceous clays and the occurrence there of flowing artesian wells.") 



New Jersey Geol. Surv., Kept. State Geologist for 1890. 1891, pp. 269-276. 



1892. 



Clark. Wm. B. The Surface Configuration of Maryland. 

 Monthly Rept. Md. State Weather Service, vol. ii, 1892, pp. 85-89. 



Dall, W. 11., and TIarkis, G. D. Correlation Papers — Xeocene. 



Bull. U. S. Geol. Surv. No. 84, 1892. 



House Misc. Doc, 52d Cong., 1st sess., vol. xliii. No. 337. 



Day, D. T. (Editor). Infusorial Earth. 



Mineral Resources U. S., 1889-90, Washington, 1892, p. 459. 



The statistics for the year are also £i;iven in the Eleventh Census. 



ScHAKF, J. Thomas. The Xatural Kesourccs and xVd vantages of 

 Maryland, being a complete description of all the counties of the State 

 and the City of Baltimore. Annapolis, 1892. 



1893. 



Clark, W. B. Physical Features [of Maryland]. ]ip. 11-54 of Mary- 

 land, its Eesources, Industries and Institutions. Baltimore, 1893. 



Dall, Wm. H. Eepublication of Conrad's Fossils of the Medial 

 Tertiary of the United States. Phila., 1893. 



Dartox, X. TT. Cenozoic History of Eastern Virginia and Maryland. 



Bull. Geol. Soc. Amer., vol. v, 1893, p. 24. 



(Abst.) Amer. Jour. Sci., 3d ser., vol. xlvi, 1893, p. 305. 



Harris, G. D. The Tertiary Geolog}' of Calvert Cliffs, Maryland. 

 Amer. Jour. Sci., 3d ser., vol. xlv, 1893, pp. 21-31, map. 



Kopublication of Conrad's Fossil Shells of the Tertiary For- 

 mations of North America. Svo. 121 pp. 20 plates. Washington, 

 D. C, 1893 



Whitney, Milton. The Soils of ]Marylaud. 



Md. Agri. Exper. Sta., Bull. No. 21, College Park, 1893, 58 pp., map. 



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

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

 pp. 89-153. 



