86 The American Geologist. August, 190B 
creek, in Wabaunsee county, there would be some error in 
the latter statement, but in general it would be true. 
DETAILS OF STRATIGRAPHY. 
In order to give a clear idea of the stratigraphy of this 
horizon throughout its great extent of outcrop it will be 
necessary to discuss each of the several associated forma- 
tions and give detailed sections of well distributed ex- 
posures. 
As already stated the escarpment of the "Flint hills" 
(formed by the Wreford limestone, Florence flint and Fort 
Riley limestone) is so marked a feature that it may be 
traced across the state without difficulty. Quite as striking 
still is the great uniformity of the formations associated 
with the escarpment. 
Northern province: In 1858 Henry Englemann passed 
over this region and briefly discussed the rocks, probably in 
the vicinity of Frankfort and Marrett.* In 1881 Broadhead 
published a paper on the "Geology of the Central Branch 
railroad"t giving sections, particularly at Frankfort. These 
papers are discussed by one of the writers in the Kans. 
Univ. Quart., IX, pp. 191-202. In 1895 Knerr ran a section 
over the same route. $ 
The Nebraska area has been pretty thoroughly dis- 
cussed by Knight. § The writers have been over the Blue 
Springs (=Wymore), Nebraska area and studied his sec- 
tions in a general way. According to Knight's section the 
thickness of the Florence flint in the bluffs opposite Blue 
Springs, numbers 5 to 7 of his section, is 19 feet 2 inches, 
with 13 feet, numbers 8 and 9, of the Fort Riley limestone 
exposed above it. At the Crusher quarry, near the B. and 
M. R. R. — U. P. junction south of Blue Springs we measured 
the section of the Florence flint, finding it to be 19 feet 6 
inches with a four foot layer of limestone beneath. Includ- 
ing this limestone, which was not included in the flint in 
Knight's section, the total thickness would be 23 feet 6 
inches. This lower layer is somewhat fossiliferous. Just 
north of the junction beneath the U. P. bridge over the little 
* Simpson, Expl. E*ped. Gt. Basin, Utah, p. 254, 1859. 
t Kans. City Rev. Sci. and Ind., V, t>. 119 et seq. 
J Univ. Geol. Surv. Kans., I, pp. 140-144, 1896. 
■§ Jour. Geol., vii, pp. 357-374. 
