98 IOWA ACADEMY OF SCIENCES. 



Columbus sandstone, Haworth and Kirk. (Kansas Univ. Quart., Vol. 

 II, p. 106, 1894.) Title given to one of the heavy sandstones occurring in 

 the Cherokee shales of southwest Missouri and southeast Kansas. It is not 

 formally defined. 



Cotton rock, Swallow. (Kansas Geol. Sur., Prelim. Rept., p. 16, 1866.) 

 Term applied to one of the thin limestones near the top of the Atchison 

 (Wabaunsee) shales near Manhattan, Kan. 



Cottonwood Falls limestone, Haworth and Kirk. (Kansas Univ. Quart., 

 Vol. II, p. 112, 1894.) Name merely incidentally mentioned at this time, 

 though afterwards defined. The terrane is the superior member of the 

 Missourian series. 



Deer Creek limestones, Bennett. (Univ. Geol. Sur. Kansas, Vol. I, p. 

 117, 1896.) Applied to a number of thin limestone bands in the Platte 

 shales, east of Topeka. 



DeKalb limestone, Bain. {Iowa Geol Sur., Vol. VIII, p. 276, 1898.) In 

 south-central Iowa applied to one of the upper limestones of the Bethany. 



Douglass formation, Haworth. (Univ. Geol. Sur. Kansas, Vol. Ill, p. 

 93, 1898.) Proposed to embrace the Lawrence shales and the Plattsmouth 

 limestones. 



Dover limestone, Beede. (Trans. Kansas Acad. Scl., Vol. XV, p. 31, 

 1898 ) A name given to a thin stratum in the median part of the Atchison 

 (Wabaunsee) shale, in Shawnee county, Kansas. 



Dover shale and sandstone, Beede. (Trans. Kansas Acad. Sci., Vol. XV, 

 p. 31, 1898 ) A local name for a pirt of the middle portion of the Atchison 

 (Wabaunsee) shale, in Shawnee county, Kansas. 



Dry Bone limestone. Swallow. (Kansas Geol. Sur. Prelim. Rept., p. 

 16, 1866.) Near Manhattan, Kansas, applied to a bed near top of the 

 Atchison (Wabaunsee) shales. 



Earlham limestone. Bain. (Iowa Geol. Sur., Vol. VII, p. 448, 1897.) The 

 term is used in connection with one of the lower principal limestone beds 

 of the Bethany, in central Iowa. 



Earlton limestone, Adams. (Univ. Geol. Sur. Kansas, Vol. Ill, p. 51, 

 1898.) Proposed for a limited lenticular bed near the top of the Thayer 

 shales, in southern Kansas. 



Eastern and lower coal-bearing division, Winslow. (Arkansas Geol. 

 Sur., Ann. Rept. 1888, Vol. Ill, p. 22, 1888.) Applied to a part of the coal 

 measures probably lying below the Cherokee, in west-central Arkansas. 



Einstein sandstone, Swallow. (Kansas Geol. Sur., Prelim. Rept., p. 21, 

 1866.) A name given, in eastern Kansas, to the uppermost bed of the 

 Thayer shales. 



Elgin sandstone, Adams. (Univ. Geol. Sur. Kansas, Vol. Ill, p. 64, 

 1898.) In southern Kansas, applied to beds lying in the Platte shales. 



Elk Falls limestone, Adams. (Univ. Geol. Sur. Kansas, Vol. Ill, p. 65, 

 1898.) In southern Kansas the term refers to a thin limestone in the lower 

 part of the Platte shales. It probably corresponds to the Lecompton and 

 Deer Creek limestones of the central portion of the state. 



Elmont limestone, Beede. (Trans. Kansas Acad. Sci., Vol. XV, p. 30, 

 1898.) • Deaignation of a thin stratum in the median part of the Atchison 

 (Wabaunsee) shalesj in Shawnee county, Kansas. 



