774 THE JOURNAL OF GEOLOGY. 
Paleontology.—Certain beds of the Chase formation contain 
numerous fossils which may be divided into two faunas; one 
composed principally of large Brachiopods and the other of 
small Lamellibranchia. 
The different layers of the Strong flint are sparingly fossilif- 
erous; and at no locality has any considerable number of speci- 
mens been obtained. The following species have been noted: 
1. Enteletes hemiplicatus, (Hall) H. and C. 
2. Athyris (Seminula) subtilita, (Hall) Newb. 
3. Chonetes granulifera, Owen. 
4. Meekella striato-costata, (Cox) White and St. John. 
5. Productus nebrascensis, Owen. 
6. Derbya crassa, (M. and H.) H. and C. (?) 
7. Pseudomonotis Hawni, (M. and H.) 
8. (?) Glauconome, sp. 
Q. Echinoid spine. 
10. Lryozoan sp.* 
In the upper part of the Strong flint on the south side of 
Elm Creek, about three miles west of Council Grove is a very 
fossiliferous stratum. It is a shaly bluish limestone which prob- 
ably belongs in No. 3 or the lower part of No. 4 of the Chase 
formation. The following species were collected at this locality : 
1. Athyris (Seminula) subtilita, (Hall) Newb. (aa) 
= A. argentea, (Shep.) Keyes. 
2. Derbya crassa, (M. and H.) H. and C. (a) 
3. Derbya multistriata, (M. and H.) Prosser. (c) 
4. Productus nebrascensis, Owen. (Cc) 
5. Pseudomonotis Hawn, M. and H. (c) 
6. Aviculopecten occidentalis, (Shum.) Meek (c) 
7. Rhombopora lepidodendroides, Meek (a) 
8. Aviculopecten McCoy, M. and H. (tr) 
9. Septopora biserialis, (Swallow) Waagen. (c) 
10. Fenestela Shumardi, Prout. (a) 
11. Myalina perattenuata, M. and H. (rr) 
12. Myalina recurvirostris, M. and W. (?) (rr) 
* These species were collected at the quarry on the Crusher Hill, west of Strong 
City and from the high hill two miles east of Alma. 
