MORGAN COUNTY. 157 



rous rock, somewhat resembling the limestone outcropping along Sandy creek, 

 which has been described on a preceding page. Below this exposure, outcrop- 

 pings of the older rocks are not frequent along this fork of Apple creek, until 

 we approach its junction with the main creek. About half a mile above the 

 junction, in the northeast corner of section 34, township 13, range 9, 1 observed 

 a foot or two in thickness of argillaceous shale, with about eigTit inches of im- 

 pure shaly limestone appearing in the bank of the creek, just above the water. 

 Below the forks of the creek, as far as to the county line, a bed of hard, bluish 

 limestone appears at the water's edge, and at a few points it may be seen that 

 this is overlaid by argillaceous shales. Passing up a small branch, which comes 

 down from the northwestward, and enters the creek bottoms near the county 

 line, I observed at one point, in the northwest quarter of section 34, on the 

 land of a Mr. Hart, a place where a coal seam had been worked by stripping, 

 though I was unable to see the coal itself, or to note its surroundings. A lit- 

 tle farther up the ravine, I observed exposures of a shale^ with thin beds of 

 limestone, and over all, a massive grayish sandstone and sandy shale. Passing 

 up the east fork of Apple creek, above the junction, we find the continuation 

 of the exposures of the hard, bluish limestone before mentioned, appearing 

 along the banks of the stream for a mile or more, sometimes in place, and 

 sometimes in large tumbling masses in the bed of the creek. It also appears 

 in some of the side ravines, and has been somewhat quarried at one place on 

 the land of Mr. Benj. Taylor, in the southwest quarter of section 31, township 

 13, range 8, at a distance of half or three-quarters of a mile from the creek. 

 About a quarter of a mile above the Sperry bridge, in the northwest quarter 

 of section 31, township 13, range 8, a section made up from about one hundred 

 yards' exposure along the banks, was as follows : 



FT. IX. FT. IN. 



1. Limestone 2 



2. Bluish and dark colored argillaceous shales 12 



3. Black slate 2 



4. Coal 1 3tol 6 



5. Clay, containing calcareous nodules 6 " 8 



6. Shale. Only visible in the bed of the stream. 



No fossils were obtained from any of the strata, except the limestone, which 

 afforded a few imperfectly preserved specimens of Productus punctatm, P. semi- 

 recticulatus, and Atliyris subtilita. This limestone is probably the same as that 

 observed farther down stream, as it is identical with it in appearance and thick- 

 ness. Still farther up stream, it appears still higher in the side of the bluffs, 

 and has been considerably quarried, and a little above this point it disappears 

 entirely, and is seen no more along the stream . 



