208 CHARLES S. PROSSER 



division in some parts of the report is called the " Waverly con- 

 glomerate." 1 Professor Andrews identified these two divisions 

 in the Licking Valley and stated that "at Black Hand, near the 

 east line of Licking county, the conglomerate is probably fifty 

 or sixty feet thick, and over it lies, as we follow the dip to the 

 southeast toward Zanesville, the Logan sandstone group. The 

 Logan sandstone, with its characteristic fossils, is found to extend 

 to a point between Pleasant Valley and Dillon's Falls, on the Bal- 

 timore and Ohio Railroad." 2 



Dr. Newberry stated that the Waverly group, as it was then 

 called, "In the northern part of the state .... is much less 

 homogeneous [than in the southern part], and is composed of 

 the following elements : 



Feet 



Cuyahoga shale (dove-colored shale and fine blue 



sandstone) -------- 150 



Berea grit (drab sandstone) 50 



Bedford shale (red and blue clay shale) - 60 



Cleveland shale (black bituminous shale) 3 - 20-60." 



This classification was repeated by Dr. Newberry in 1873 in' 

 his report on the geology of Cuyahoga county, with a revision 

 of the thickness of the several divisions, as follows: 



Feet 



f Cuyahoga shale - - 1 50-200 



j Berea grit - 60 



Waverly group 1 , c , . 



J ° r 1 Bedford shale - 75 



L Cleveland shale 4 - 21-60 



At a later date the Cleveland black shale was referred by Dr. 

 Orton and some other geologists to the Devonian system. The 

 same classification for the Waverly was given by Dr. Newberry 

 in 1874 under his description of the Carboniferous system. 5 In 

 this volume Professor N. H. Winchell reported numerous out- 

 crops of the Berea grit succeeded by the Cuyahoga shales and 



'See p. 135 and explanation of the "section on Hocking River" on the "map 

 showing the Lower Coal Measures." 



2 Ibid., p. 79. Also see ibid., Rept. Progress in 1870 [1871], p. 59. 



3 Ibid., Pt. I, Rept. Progress in 1869, p. 21. 



4 Rept. Geol. Surv. Ohio, Vol. I, Pt. I, p. 184. $ Ibid., Vol. II, Pt. I, p. 87. 



