KNOX COUNTY. 319 



be only a division of the coal below it, or it may be a separate seam, perhaps 

 coal No. 3., The equivalents of either of thes seams have not been recognized 

 elsewhere in the county. 



Near the former site of Dr. E. Hall's mill, ection 5, township 13, range 1, 

 there is an outcrop of limestone along Pope creek, close to the water's edge. 

 It is supposed that there is a bed of coal but a few feet below this, but the mat. 

 ter had not been thoroughly tested when I was there. Should it prove to be 

 so, it seems quite probable that it may be the same seam, No. 3 of the general 

 section, and the same as the upper one found in the southwestern part of town- 

 ship 14, range 2 west, in Mercer county. Much of the limestone at this out- 

 crop is highly fossiliferous, and contains many well preserved remains. The 

 following fossils were obtained here : Spirifer cameratus. S. planoconvexa, 

 Productus longispinus var. muricatus, P. Prattenanus, P. Nebrascensis, Chonetes mes- 

 oloba, Amcula longa, Aviculopecten pellucida, A. carbonarius, A. occidentalis, Lima 

 retifera, Nucula parva, Edmondia ovata, Entolium aviculatum, Allorisma Geinitzii, 

 Toldia Knoxensisf and Leda bellastriata, Bellerophon ellipticus, B. Montfortianus, 

 B. Meekianus, B. percarinatus, Pleurotomaria Grayoillensis, P. sphceruluta, Macro- 

 don, Machrocheilus inhabilis, PolypJiemopsfe peracuta, P. inornata, Pleurophorus, 

 Nautilus and Orthoceras cribrosum. Of these, Allorisma Geineitzii, Leda bellastri- 

 ata, Nucula parva and Pleurophorus? have been referred by Prof. Geinitz to the 

 following European Permian species : Allorisma elegans, Nucula Kasanensis, N. 

 Beyrichi, and Pleurophorus Pallasi. Some of these species are found in connec- 

 tion with the lowest coals. (See the description of coal No. 1 in the report on 

 Warren county.) For the identification of the above named fossils, and for other 

 points of interest, I am indebted to Mr. F. B. Meek. 



The next coal seam, No. 2 of the Illinois section, is generally from a foot 

 and a half to three feet in thickness. This coal is considered fully equal in 

 quality to that of any other seam found in the county. In township 12, range 

 1, a coal that appears to be the equivalent of this seam, is worked in sections 

 20, 21, 29, 30, 32 and 33. The seam is from two to three feet thick, with from 

 one to three feet of clay shale, and a band of limestone above, and a floor of 

 fire clay. In sections 23 and near the southeast corner of 16, township 11, 

 range 2, it is again worked. From here along down Court creek to its mouth, 

 and on some of its branches, this seam has been more or less worked in sections 

 19, 22 and 23, township 11, range 3, also in sections 13 and 35. In Truro, 

 township 11, range 4, it appears in or near the bed of Spoon river, and has been 

 worked at various places. From here there are outcrops along the river, at in- 

 tervals, to near the south line of the county. The exposure near the river 

 .bridge, section 12, township 10, range 3, shows the following succession : 



1. Clay shale. Not measured. 



2. Limestone 



3. Clay shale 



