268 
GEOLOGY 
No. 1.—Bellaire to railroad summit. 
OF OHIO. 
No. 2.—Railroad summit to Spencer’s. 
7. Coal No. 10. 7. Coal No. 10. 
ferential Wav ete eh vat Wears ac nna eI ge es 35! Sapte reveeh leeway see umes 60! 
9. Coal No. 9. 9. Coal No. 9. 
NO; UinieeyvAlhusss6é sogsee an el COM ALO eli ie rave eenmee te tere tar pera eae emia 45!—56/ 
11. Coal No. 8e. 11. Coal No. 8. 
12 agintenval pee seta we ayes O350 el redintenyaleeeeeeeeeee eee 4 OSL oO, 
13. Coal No. 8b. _ 13. Crinoidal limestone. 
U4, IMA co coScesces0sca505 © BU 
15. Coal No. 8a. 
Gin tenvale ase eee ee see e oo UE 
17. Coal No. 8. 
Les Interval) to river 2 5252). e. 130/ 
A comparison of these sections certainly seems to prove that No. 11 of 
the second is the same as No. 17 of the first. The anatomy of the bed is 
the same, for while the upper division has been removed by the eroding 
current already referred to, we fina in the lower division, which remains, 
the characteristic pyrites band and the clay partings. But to render the 
matter absolutely certain, this bed was traced, in connection with the 
Crinoidal limestone, all round the western and northern outcrop to Steu- 
benville, on the Ohio, and thence down to the river to Portland, whence 
the bed itself was followed to Bellair, where it proved to be the No. 17 of 
It is evident, then, that the rocks filling the interval between 
Coal No. 8 and the massive limestone underlying Coal No. 9 have disap- 
section 1. 
peared, bringing Coals Nos. 8 and 9 eighty feet nearer together at the 
west than at the east, so that at the west Coal No. 8 holds the same rela- 
tive position to Coal No. 10 that No. 8¢ does at the east. Followed still 
further north and north-west, the limestone between Nos. 8 and 9 thins 
out until, at the extreme north-west outcrop in Harrison county, the 
interval is almost nothing. Further reference to this matter is made in 
the reports on Harrison and Jefferson counties. 
As, however, this whole matter has been fully discussed by me in my 
memoir upon the Upper Coal Measures,* it is unnecessary to make any 
further reference to it here, beyond stating that I have as yet found no 
reason to doubt the accuracy of the conclusions announced in that memoir 
in December, 1872. 
LOCAL GEOLOGY. 
Warren Township.—In this township the soil is quite thick, and, for the 
most part, so effectually covers the rocks that exposures are rare. Good 
crops of grass and grain are obtained, and much tobacco is raised. That 
portion which is north of the railroad lies almost wholly in the upper 
coals, and the hills are so high that, should one follow the ridge roads, he 
Ann. Lye. Nat. Hist. N. Y. (Joe. cit.). 
