82 • Kansas Academy of Science. 



den on one side of the creek, with usually a bluff on the other, 

 which will enable one to see exactly where the creek has cut 

 through, and affords excellent exposures. The Cottonwood lime- 

 stone through this section of the country is blue instead of yellow 

 in appearance. The upper Neva is quite in evidence around the 

 main Verdigris, and on Camp creek appears as good flagging. On 

 the South Fork it is not noticeable. The middle and lower Nevas 

 are very heavy and still have their characteristic appearance. 



In the southeast quarter of section 29, township 22, range 10, 

 there is an outcrop, probably of a quarter of an acre, covered with 

 Cottonwood lime. In the southwest quarter of section 29, town- 

 ship 22, range 10, at the head of a ravine, the Fusulina are very 

 noticeable, lying in the blue shale that is in the place of the 

 Fusulhia layer of the Cottonwood limestone. Here may be noticed 

 crystals of calcite. Fossils, such as crinoid stems, appear all 

 through the formation. These fossils may be noticed for some 

 miles towards the north, but are more pronounced at this place. 



In the southeast quarter of section 29, at a high embankment, 

 six feet below the Cottonwood limestone a calcareous shale two feet 

 and four inches thick appears. It is quite hard and makes a 

 prominent feature in the cliff. A similar shale in the same posi- 

 tion is found in section 11, township 22, range 9. The Cottonwood 

 seems to be homogeneous and about two and one-half feet thick; 

 yet at the head of the creek on the north side of section 5, town- 

 ship 23, range 10, the Cottonwood appears very massive, but it 

 weathers like shale. In two places it is well exposed in the creek 

 bank. It breaks up into flagging from one to two inches thick, 

 with an area of two or three square feet. In sections 9 and 8, 

 township 23, range 10, the dip is very great to the west. In a 

 little less distance than three fourths of a mile it is forty-eight feet; 

 measured in degrees, about one. In section 28, township 23, range 

 9, the layer above the Cottonwood seems to be mixed with Cotton- 

 wood lime. The Cottonwood lime is well exposed in a number of 

 ravines here. Little white shells are seen laminated through the 

 limestone. In a rather large layer, four inches above the bottom, 

 a three-inch layer of shells occurs. This laminated layer has 

 thickened up in the Cottonwood lime until it has become a large 

 part of it. 



A good exposure is seen in a ravine northwest of a house which 

 is in the southwest quarter of section 28, township 23, range 9. 

 Here some four inches of the bottom layer of the Cottonwood 

 seems normal blue Cottonwood lime. Above this is a hard layer of 

 fossiliferous stone, which weathers into a very rough flagging lime 



