254 GEOLOGY or OHIO. 



and one-half feet thick, and of good quality. Along Wills Creek this 

 coal is mined by J. Wilcox, C. Wilcox, and S. Voorhis, in section 2, and 

 by H. Schmueser, in section 3. Being worked only for domestic use, and 

 left untouched in summer, none of these banks were in condition to ad- 

 mit of satisfactory measurement, and no specimens could be obtained. 

 Coal No. 4 is not reached on Symmes Creek, and is nowhere satisfac- 

 torily exposed along Wills Creek, though it can be recognized here and 

 there, and, with some difficulty, can be traced from Johnson's Mills 

 to Frew's Mills. Fragments of the gray limestone were occasionally seen, 

 but it was not observed in place. Nodules of iron ore are common in the 

 sandstone above Coal No. 6, but are not in quantity to be of economical 

 value. 



Salem Township — Like Adams, thi.s lies at such an elevation as to be 

 without available coal. The Crinoidal limestone is seen on nearly all 

 the roadi, with Coal No. 76, eight to ten inches thick, about twelve feet 

 below it. In the southern portion, on Salt Creek, there are one or two 

 openings upon the " Norwich " coal, which are worked irregularly dur- 

 ing the winter. The coal used here is obtained chiefly from Madison 

 and Monroe townships, where Coal No. 6 is mined. 



Monroe Township. — Here we have the following section : 



FT. IK. 



1. Crinoidal limestone 2 



2. Shale 3 



3. CoalNo.76 8-10 



4. Shale and sandstone 120 



5. Coal No. 7 6 to 8 



6. Sandstone 60 



7. Shale 10-1.5 



8. CoalNo.6 4 



9. Fire-clay 3 



10. Shale 35 



11. CoalNo.4 2 



Coal No. 76 is nowhere of any value, and is seen only occasionally 

 with the Crinoidal limestone, and then on the tops of the highest hills. 

 The limestone is very shaly, and contains few molluscan remains, being 

 made up almost entirely of crinoidal fragments. Coal No. 7 is usually 

 very thin, and can be traced only with the utmost difhculty; but one 

 mile south from Otsego, on the farms of C. Buker and -C. B. Painter, it is 

 developed, locally, to a very considerable thickness. There it shows coal, 

 four feet; clay, one foot; coal, one foot six inches. The upper coal is of 

 only moderately good quality, as it contains much cannel of low grade, 

 but the bottom coal is said to be very fair. No banks are now in opera- 



