192 KANSAS UNIVERSITY QUARTERLY. 



the area discussed iu this paper. In discussing the section at 

 Frankfort, he says : 



"At Frankfort the hills extend up probably 150 feet above the Vermillion val- 

 ley, and seemed formed in the lower portion chiefly of shales for over fifty feet, 

 with probably one limestone suitable for building near the lower part. These 

 beds I refer to the middle Permian, the lower probably cropping out eastwardly. 



"Toward the top of the hill about four feet of good building stone Ib quarried. 

 In the quarry is an ash-gray magnesian limestone, weathering cream color, and 

 works out very freely. The quarry rock is of a very porous texture, caused by the 

 decomposing and loss of numerous FiiHulind': it also contains many chert con 

 cretions, which does not seriously interfere with its use as a building stone. 



"Five miles west the same beds appear in the bluffs, but lower down, at Bar- 

 rett's station. 



"Still farther, several miles, at Bigelow station, these beds are well exposed, 

 and the stripping expoted to view better layers of stone. A good deal of quarry- 

 ing has been done here, and preparations are making for much more. 



" In the beds I observed the following fossils: Productas .scmireticulaf >'■•<. 

 with Fusulincc very abundant, but other fossils very rare." 



The lower portion of tlie section at Frankfort, referred by 

 Broadhead to the middle Permian, is the upper part of the 

 Wabaunsee formation of the Coal Measures, while the "ash- 

 gray magnesian limestone" is the Cottonwood Falls limestone. 

 That the abundant fauna of Dcrhi/a, Seminula and Chonetes 

 should have been overlooked seems queer when the shale above 

 the stone he describes unmistakably at Barrett and Bigelow is 

 almost composed of these shells. 



The Blue river cuts through the Cottonwood formation at 

 Manhattan and well into the top of the Wabaunsee formation. 

 The geology of this locality has been amply described bv Pro- 

 fessor Prosser,* and only one section farther north will be given 

 for comparison with it. The section is located on the south fork 

 of the Black Vermillion, east of l^arrett station. The section 

 rises from the bed of the creek to the top of the hill, a half a 

 mile to the westward. 



CI . 7 T-T 7 f J- Stratum. Total. 



Soufh Fork Section. f^_ j^^ ff_ i,j_ 



22. Soil at the top of the hill 5-0 183 



21. Cottonwood limestone, best exposed in quarry south of road, .3+ 177—6 



20. Covered slope 10 171-6 



19. Gray limestone, uneven texture, 2 to 1—0 161— G 



18. Olive and reddish argillaceous shale in the upper part, the 



lower part covered 23—0 160—6 



17. Yellowish to gray limestone 5—0 137- 6 



16. Covered slope, apparently composed of olive indurated shale, 5-0 132—6 

 15. About two feet of yellowish- gray limestone, not very fossil- 



iferous 2-0 127-6 



*Bull. Geol. Soc. Amer., VI, p. 32 et scq. 



