194 KANSAS UNIVERSITY QUARTERLY. 



probably in the vicinity of Frankfort or Barrett. After referring 

 to the rocks near Seneca and westward, he says : "On the Ver- 

 million, some miles south of the road, a whitish magnesiac 

 limestone is quarried, remarkable on account of the large num- 

 ber of small cavities which it presents, all caused by the weath- 

 ering out of Fusulina cylindrica. A stratum very much like 

 this has been observed near the mouth of the Blue river, and 

 No. 22 of Messrs. Meek and Hayden's section presents the same 

 character."* There can be but little doubt that the stone re- 

 ferred to at the mouth of the Big Blue and that mentioned here 

 were the Cottonwood limestone. Bed 24 of Meek and Hayden 

 is the Cottonwood, according to Prosser.f 



Prof. E. B. Knerr, in discussing the Frankfort section, says : 

 " South of Frankfort the bluffs rise to a height of 1(30 feet above 

 the railroad, and have the Cottonwood Falls limestone on their 

 summits, about four feet thick. Beneath these to the base of 

 the bluff is a succession of shales fifteen to thirty feet thick, 

 alternating with ledges of limestone eight to five feet thick. 

 The ledges of limestone terrace the bluffs, about six terraces 

 being especially prominent. " + 



„ . , <- , . o stratum. Total. 



Bigdoiv Section. % ft. in. ft. in. 



4. Impure limestone 2 — 9 9 — 1 



.3. FoBsiliferous shales 2 — 7 6—4 



2. Cottonwood Falls limestone, upper part 2—3 3—9 



1. Lower stratum of the same 1 — 6 1 — 6 



The limestone at this locality is unusually white, and works 

 much better than that from the region of Beattie or the large 

 Florena quarry. A fish tooth and a specimen of a large Orbicu- 

 loidea were taken from the shales at this place. A section of 

 the Mead quarry, at Barrett, is given below for comparison. 

 The section is taken at the north end of the quarry. 



Ifead Quarru Section. \\ f^^'^y^l "^otal. 



4. Shaly, argillaceous limestone 1 — 2 9 — 7 



3. Yellowish fossiliferous shales 3 — 8 8—5 



2. Nearly white limestone ( Cottonwood ), three layers 4—9 4 — 9 



1. Slope covered, about fifty feet. 



No. 3 of this section (the Cottonwood shales) is richer in fossils 

 here than at any other locality north of the Kansas river. No. 4 



* Simpson, Expl. Gt. Basin Utah, 1859, p. 254. 



I Log. cit., p. 37. 



J Univ. Geol. Surv. Kans., II, p. 143. 



§ Sunflower quarry, central part (the limestone shows thicker farther south). 



II Between Barrett and Bigelow. 



