Geological Papers. 77 



separates into two parts the shale-beds he referred to. For 

 the shales below the Mound Valley limestone we have already 

 accepted Adams's name, Ladore shales. It is here proposed to 

 retain the name Galesburg shales for those lying above the 

 Mound Valley limestone and below the Dennis limestone. 



Dennis Limestone.'' — Adams used the name Dennis lime- 

 stone to designate a limestone formation immediately underly- 

 ing the little way station on the railroad between Parsons and 

 Cherryvale. 



As explained above, he confounded these with the Mound 

 Valley limestone, so that, so far as his writings are concerned, 

 the name is equally applicable to each formation. As the name 

 Mound Valley had already been used by this Survey, it was re- 

 tained with its original significance and the term Dennis, out 

 of courtesy to Adams, is now used for the upper one of the two 

 to which he applied it. 



Cherryvale Shales.'' — The name Cherryvale shales is used 

 to designate the shale-bed with the Dennis limestone lying be- 

 low and the Drum limestone lying above. 



Drum Limestone.'' — The name Drum limestone was first 

 suggested by Adams to designate the limestone covering the 

 hilltops at Cherryvale and occurring in such abundance in the 

 vicinity of Independence. Previously, Haworth and Piatt" 

 had applied the name Independence limestone to this same for- 

 mation. It appears, however, that the name was previously 

 used by Calvin'^ for a division of the Devonian shales in the 

 vicinity of Independence, Iowa, and its use must, therefore, be 

 abandoned by this Survey. The name Drum limestone is 

 therefore adopted. 



Chanute Shales.'" — The term Chanute shales is used to 

 designate the shale-bed lying first above the Drum limestone 

 and first below the lola limestone. This name was introduced 

 by Haworth and Kirk in 1894 in a preliminary publication, as 

 already explained, at a time when a number of geological sec- 

 tions were run across the state. In that instance, local names 

 were given to each formation under each section. Later, when 

 a system of correlation was introduced, some of these names 



24. Adams, Dr. Geo. I., U. S. G. S. Bull. 211, p. 36, Washington, 1903. 



25. Haworth, Prof. E., Kan. Univ. Geol. Surv., vol. Ill, p. 47, Lawrence, 1898. 



26. Adams, Dr. Geo. I., U. S. G. S. Bull. 211, p. 37, Washington, 1903. 



27. Haworth & Piatt, Kan. Univ. Quart., vol. II, p. 115, Lawrence, 1894. 



28. Calvin, Amer. Jour. Sci., 3d series, vol. XV, pp. 460-462, 1879. 



29. Haworth & Kirk, Kan. Univ. Quart.,' vol. II, p. 109, Lawrence, 1894. 



