476 GEOLOGY OF OHIO. 



of Henry Ross, a mile and a half above the mouth of the stream, shows 



the sandrock as follows : 



Ft. In. 



1. Heavy, coarse-grained sandrock 25 0' 



2. Shale, with coal plants 4 6 



3. Coal 1 6 



4. Clay parting 1 4 



5. Coal : 2 8 



6. Interval to bed of Big Run 20 



' (See Map XL, No. 13.) 



Another section, taken higher up Big Run, but within the limits of 

 Washington county, shows the stratigraphical position of some limestones 

 and of a higher seam of coal : 



Ft. In. 



1. Coal stain or blossom. 



2. Not exposed 10 



3. Sandy shale 20 



4. Sandstone 5 



5. Shale '. 17' 



6. Limestone 2 



7. Not exposed , 41 



8. Limestone, in part magnesian 9 



9. Shale , 15 



10. Buff and white limestone 3 



11. Shales, chiefly 25 



12. Coal, Coal Run or Cumberland seam (not measured).. 



13. Not exposed 30 



14. Limestone 2 to 3 



The two coals are from one hundred and forty to one hundred and fifty 

 feet apart. The upper one is doubtless very thin and valueless. It has 

 been noticed, however, at one or two other points. It is better developed 

 in some other counties. 



On Cat's Creek the Coal Run or Cumberland seam of coal is seen. The 

 following section was taken on the land of G. Br/>wn, two miles above 

 the mouth : 



Ft. In. 



1. Buff and white limestone 2 



2. Sandy shale 27 



3. Coal and clay 1 



4. Coal '. 1 6 



5. Clay and bituminous shades 1 



6. Coal 2 5 



7. Clay 6 



8. Sandstone and shales 24 



9. White limestone 2 



(See Map XL, No. 15.) 



