84 Kansas Academy of Science. 



Neva Limestone." — Prosser and Beede gave this name to 

 this limestone, it being the name of a station of the Atchison, 

 Topeka & Santa Fe railroad. It lies immediately above the 

 Elmdale formation. 



EsKRiDGE Shales."' — From large exposure of these shales 

 near Eskridge, the name was given by Prosser and Beede. It 

 fills the interval between the Neva limestone and the Cotton- 

 wood limestone. 



COUNCIL GROVE STAGE."" 



The Council Grove stage is subdivided into two parts, 

 namely, the Cottonwood limestone and the Garrison formation. 



Cottonwood Limestone." — The name Cottonwood lime- 

 stone or Cottonwood Falls limestone is a commercial term 

 used by the trade for an indefinite period before it was applied 

 to a definite geologic horizon. Extensive stone-quarries were 

 opened up in the vicinity of Cottonwood Falls and stone shipped 

 to many places for erecting costly buildings. In the summer 

 of 1893, Haworth and Kirk made a geologic section up the 

 Neosho and Cottonwood rivers. Their first report was pub- 

 lished in January, 1894, and the name Cottonwood Falls lime- 

 stone formally given to their number 13 of this section. Later, 

 in 1894, Prosser"' introduced the term "Cottonwood forma- 

 tion," including the Cottonwood Falls limestone and the over- 

 lying shale-bed. For the limestone he used the word "Cotton- 

 wood" rather than Cottonwood Falls, and in a number of publi- 

 cations since that date has adhered to the name Cottonwood. 

 To simplify matters, therefore, this Survey, in volume III, 

 used the word Cottonwood, which was considered unobjection- 

 able, as the change was so little, and particularly as the com- 

 mercial name was used indiscriminately, either Cottonwood 

 or Cottonwood Falls. In 1902, Prosser"' suggested the name 

 Alma limestone instead of Cottonwood limestone, on account 

 of the name Cottonwood being previously used by N. F. Drake 

 in connection with Texas geology. In a letter, however, to Mr. 

 Bennett, in 1907, Professor Prosser states that "Cottonwood 

 or Cottonwood Falls would be the correct nomenclature." We 

 are not informed of the details for Professor Prosser changing 



G4. Prosser & Beede, Jour. GeoL, vol. X, No. 7, p. 709, 1902. 



65. Prosser & Beede, Jour. Geol., vol. X, No. 7, p. 709, 1902. 



66. Prosser, Dr. C. S., Jour. GeoL, vol. X, p. 709, 1902. 



67. Haworth & Kirk, Kan. Univ. Quart., vol. II, p. 112, Jan., 1894. 



68. Pressor, Dr. Chas. S., Jour. Geol., vol. Ill, p. 697, 1895. 



69. Prosser, Dr. Chas. S., Jour. Geol., vol. X, p. 711, 1902. 



