378 BRUCE WADE 



and has been little changed even to the present day. In 1906 

 Glenn^ published a map and gave a good, serviceable, and important 

 account of the Upper Cretaceous of Tennessee along with his report 

 on the geology and water resources of Tennessee and Kentucky west 

 of the Tennessee River and of an adjacent area in Illinois. Nelson 

 gave a short discussion of the Upper Cretaceous in connection with 

 his studies of the clay deposits of West Tennessee^ in 191 1. The 

 occurrence of the Tuscaloosa formation in Tennessee was shown 

 by the work of Miser^ on the Waynesboro Quadrangle in 1913. 

 The McNairy sand member of the Ripley was differentiated by 

 Stephenson'* in 19 14. In this same publication the Tennessee 

 Upper Cretaceous deposits were correlated with beds of the same 

 age in eastern United States. In 191 6 Berry^ published an account 

 of about twenty-four species of fossil plants collected from the 

 Ripley and Eutaw of McNairy and Hardin counties. In 191 6 

 and 191 7 the writer^ published several short papers on the discovery 

 of and some observations on a large Ripley fauna of McNairy 

 County and a single article on the occurrence of the Tuscaloosa 

 formation as far north as Kentucky. In 1919 Schroeder^ gave a 

 very brief outline of the Cretaceous in connection with his report 

 on the Ball Clays of West Tennessee. In the latter part of 191 9 

 Berry^ published a very comprehensive discussion of the Upper 

 Cretaceous Geology of Tennessee in his monograph on the Upper 

 Cretaceous Floras of the Eastern Gulf Region. 



During 1915 and 1916 the writer mapped in detail the areal 

 distribution of the Upper Cretaceous formations in McNairy, 

 Decatur, and Chester counties, and in 1919 this work was carried 



' L. C. Glenn, U.S.G.S. Water Supply Paper No. 164 (1906). 



2 Wilbur A. Nelson, Tennessee Geological Survey Bull. No. 5, Nashville, 191 1. 



3 H. D. Miser, Resources of Tennessee, Nashville, Vol. IV, No. 3 (1913), p. 107. 

 "L. W. Stephenson, U.S.G.S. Prof. Paper 81 (1914)- 



sE. W. Berry, Torr. Bot. Club Bull. 43, pp. 283-304, PI. 16 (1916). 



'Bruce Wade, Proc. Acad. Nat. Sci. (Phila., 1916), pp. 4SS-71, Pls- XXIII, 

 XXIV; Am. Jour. Sci., Vol. XLIII (1917), p. 293, Figs, i, 2; Proc. Acad. Nat. Sci. 

 (Phila., 191 7), pp. 280-304, Pis. XVII, XVIII, XIX; Johns Hopkins Univ. Cir. 

 (March, 191 7), pp. 73-106. 



'Rolf A. Schroeder, Resources of Tennessee, Vol. IX, No. 2 (1919). 



8E. W. Berry, U.S.G.S. Prof. Paper 112 (1919). 



