DELAWARE COUNTY. I 



hoga, in the bed of Perfect's Creek. It is on land of Oliver Greatrax, and 

 has the following section, in descending order : 



No. 1. Sandstone, of the grit of the Berea, not glittering and 



earthy, in beds of 1 to 4 inches, seen < 3 ft. 



" 2. Shale— blue, hard 1" 



" 3. Sandstone, same as No. 1, but in thicker beds of 4 to 6 



inches 2 " 



" 4. Shale, like No. 2 8 in. 



" 5. Sandstone, same as No. 1, seen 4" 



Total 10 " 8 " 



The bedding of this quarry is irregular, the pieces coming out in all 



shapes lenticularly, and varying in thickness; but the stone is very 



good, the grain being firmer and more like that of the Berea than any 



seen elsewhere in the Cuyahoga. 



S. W. \ section 2, Trenton. In the left bank of Perfect's Creek, on the 



land of Norman" Overturf, the following section may be made out, in 



descending order : 



Section on Norman Overturf's Land, Trenton Township. 



No. 1. Thin-bedded, shaly sandstone, glittering with mica, espe- 

 cially on the sides of the bedding 3 ft. 



" 2. Beds more even — 2 to 5 inches ; grit similar to that of the 



Berea 4 " 6 in. 



" 3. Very thin and shaly, rather slaty 6" 



" 4. Beds 2 to 4 inches 6" 



" 5. Slaty sandstone 4" 



" 6. Beds 2 to 6 inches, seen 1" 



Total 9 " 10 " 



The slaty beds of this section, which are wavy and ripple-marked, lie 

 irregularly among stone that is of a coarser grain and heavier bedding, 

 the heavy beds showing the unusual phenomenon of tapering out, allow- 

 ing the horizon of the slaty layers to rise and fall in the course of a few rods. 



This section, or parts of it, is seen again in the left bank of the Wal- 

 nut, below the mouth of the Perfect Creek, on Mr. Overturf s land. It is 

 also exposed a few rods further north, along the left bank of Walnut 

 Creek, on Monroe Vance's farm. At the latter place some very good flag- 

 ging has been obtained from the bed of the creek, but the thickest beds 

 are not over four inches, the most being less than an inch. They afford 

 here a fine surface exposure, showing a peculiar sheety and wavy 

 arrangement. They rise and fall, shooting up and down at various 

 angles and in all directions, and are often ripple-marked, reminding the 

 observer very much of similar thin layers of the Waterlime of the Upper 



