From the foregoing, it will be seen that the terms “Osage City” and “Burlingame,” when strictly applied, are proposed for one and the same set of rocks, namely, those above the Osage-Topeka coal, while the shales below the coal and above the Hartford limestone are not designated at all. Later, in Vol. III of the University Survey (p. 66), in quoting Doctor Adams’s notes, Professor Haworth gives the following: “_Severy Shales._—‘Above the Elk Falls limestone is a bed of shales averaging fifty to seventy-five feet in thickness, which, with the protected limestones above, forms a light escarpment that may be traced from a few miles below Eureka to Cedar valley, forming a line from two to five miles west of the Elk Falls escarpment. This shale bed is therefore sufficiently prominent to be recognized in the field, and to be of considerable local and stratigraphic importance. The town of Severy lies within it, and therefore it may be called the Severy shales.’” Dr. George I. Adams, of the United States Geological Survey, under whose direction the work of correlating the Coal Measures rocks of Kansas was done last summer, informs me that the names used in this paper and accredited to him have been passed upon by the committee on nomenclature, and he has kindly permitted me to use them in advance. So far as known these shales are not fossiliferous, save for a few fragments of fern leaves, below the coal, but are very fossiliferous locally just above it. _Lophophyllum profundum_ (Milne-Edwards and Haime) Foerste. _Ceriocrinus craigi_ (Worthen) Wachsmuth and Springer. _Ceriocrinus harshbargeri_ Beede. _Ceriocrinus hemisphericus_ (Shumard) Wachsmuth and Springer. These three species of crinoids are from the dump, and may be from the shales between the two layers of the Howard limestone above. _Spirorbis_ sp. _Fenestella dentata_ Rogers. _Fenestella limbata_ Foerste. _Fenestella mimica_ Ulrich. _Pinnatopora elliptica_ Rogers. _Polypora whitei_ Foerste. _Ambocœlia planoconvexa_ (Shumard) Hall and Clarke. _Chonetes glaber_ Geinitz. _Chonetes granulifer_ Owen. _Derbya crassa_ (Meek and Hayden) Waagen. _Dielasma bovidens_ (Morton) White. _Hustedia mormoni_ (Marcou) Hall and Clarke. _Lingula umbonata_ Cox. If this species is considered separate from _L. mytiloides_, the specimens here referred to would probably be classed with the latter. _Productus cora_ d’Orbigny. _Productus longispinus_ Sowerby. _Productus nebraskensis_ Owen. _Productus pertenuis_ Meek. _Productus semireticulatus_ (Martin) d’Orbigny. _Productus symmetricus_ McChesney. _Pugnax utah_ (Marcou) Hall and Clarke. _Reticularia perplexa_ (McChesney) Schuchert. _Seminula argentia_ (Shepard) Hall and Clarke. _Spirifer cameratus_ Morton. _Spiriferina cristata_ (Schlotheim) Dawson. _Astartella vera_ Hall. _Aviculopecten occidentalis_ (Shumard) Meek and Hayden. _? Aviculopecten whitei_ Meek? _Cardiomorpha missouriensis_ Shumard? _Edmondia_ sp.