MARYLAND GEOLOGICAL SURVEY 51 



1902. 



Bauer, L. A. Second Eeport on Magnetic Work in ^laryland. 

 Md. Geol. Surv., vol. v, Baltimore, 1902, pp. 23-98. With maps. 



Maryland Geological Survey'. Volume Four. 

 The Johns Hoplcins Press, Baltimore, 1902. 



Xewton, E. Bullen. List of Thomas Say's types of Maryland 

 (U. S.) molhisca in the British Museum. 



Geol. Mag., dec. iv, vol. ix, 1902, pp. 303-305. , 



EiES, Heinrich. Eeport on the Clays of Maryland. 

 Md. Geol. Surv., vol. iv, 1902, pp. 203-505. 



1903. 



Marydaud Geological Survey in co-operation with U. S. Bureau of 

 Soils. Map of St. Mary's County showing the agricultural soils. Pub- 

 lished on topographic base, prepared for Md. Geol. Surv. by U. S. Geol. 

 Surv. 



33% X 3314, contour 20 feet, 8 colors and patterns, scale 1/G2,500. 



in co-operation with U. S. Geological Survey. Map of St. 



Mary's County showing the geological formations. Published on topo- 

 graphic base, prepared for Md. Geol. Surv. by U. S. Geol. Surv. 



33% X 381/4, contour 20 feet, 7 colors and patterns, scale 1/62,500. 



1904. 

 Bagg, Eufus M., Jr. Sj^stematic paleontology of the Miocene de- 

 posits of Maryland : Foraminifera. 



Md. Geol. Surv., Miocene, pp. 460-483, plates cxxxi-cxxxiii, 1904. 



BoYER, C. S. Thallophyta-Diatomaceae. 



Md. Geol. Surv., Miocene, pp. 487-507, plates cxxxiv, cxxxv, 1904. 



Case, E. C. Mammalia, Aves, Eeptilia. 



Md. Geol. Surv., Miocene, pp. 3-70, plates x-xxvii, 1904. 



Clark, William Bullock. The Miocene deposits of Maryland. In- 

 troduction and general stratigraphic relations. 

 Md. Geol. Surv., Miocene, pp. xxiii-xxxii, 1904. 



Echinodermata. 



Md. Geol. Surv., Miocene, pp. 430-433, plates cxix, cxx, 1904. 



