706 CHARLES S. PROSSER 



In 1898 Dr. Adams applied the name "Eureka limestone" 

 to a formation exposed in the vicinity of that city, 1 which Pro- 

 fessor Haworth correlated with the Burlingame limestone. 2 The 

 narne Eureka, however, was preoccupied, since Hague used it 

 in 1883 for the Eureka quartzite of Nevada, 3 and later Dr. 

 Branner named the Eureka shale of Arkansas. 4 



—shales. — In Lyon county, succeeding the Burlingame 



limestone, according to Mr. Alva J. Smith, are nearly forty-five 

 feet of blue to yellow shales and friable limestones, the latter com- 

 prising about eight feet of the total thickness of this formation, 

 which is limited at the top by the Emporia blue limestone. 5 

 Dr. Adams has recognized as a formation the shales included 

 between the Burlingame and Emporia limestones, which he has 

 named in manuscript, and therefore no name is proposed for the 

 division in this article. 



Emporia limestone. — This division, as described by Mr. Smith, 

 is composed of three feet of hard blue limestone at the base, the 

 upper six-inch layer making a good flagstone, which is exten- 

 sively used in Emporia. Then there is four feet of shale capped 

 by another hard blue limestone two feet in thickness. These 

 limestones "pass under the Cottonwood River at Soden's mill, 

 one mile south of Emporia," 6 and the Neosho River at the 

 Rinker bridge. It was named by Kirk in 1896, 7 but, according 

 to Mr. Smith, at some of the localities which he mentioned it 

 was confused with a higher limestone. The blue Emporia lime- 

 stone was correctly reported by Kirk in the "Chicago Mound " 

 near Wyckoff ; but the limestones near the "Emporia water- 

 works" and " along the hilltops about four miles south and one 

 mile east of Emporia" 8 are higher and belong in what Mr. 

 Smith named the "Emporia system." 9 The lower limestone 



z Ibid., p. 67. 2 Ibid., p. 73. 3 Third Ann. Rept. U. S. Geo/. Surv., pp. 253, 262. 



'■Ann. Rept. Geo/. Surv. Ark., for 1888, Vol. IV, 1891, p. 13, and see description 

 by Professor Simonds on p. 26. 



5 See A BuUetin on Lyon County Geo/., 1902, pp. 2, 10 ; and Trans. Kan. Acad. 

 Science, Vol. XVII, 1 901, p. 193. 



6 Bu/t. Lyon County Geo/., pp. 2, 10; and Kan. Acad. Sci., Vol. XVII, p. 193. 



" Univ. Geo/. Surv. Kan., Vol. I, p. 80. 8 Ibid., p. 82. 



9 Letter of Mr. Smith, Jan. 20, 1902. For a description of the Emporia system 

 see Bui/. Lyon County Geo/., p. 3. 



