258 GEOLOGY OF OHIO. 
TRS) JON 
28 ee OHAMO oe = sos Sadish aes ORE ea ca 10 0 
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26." Sandstone 0a ek Voge EAA ee de Nea een tc net eMC area UT 2 Sh. VEE Ae. 28 0 
Qe. BAS ts Des CAE EUs ea EES ND CO pe eR MET Ep TEN aR Rl 14 0 
28." "Sandstones: 2s ees ees wy Gee ye hee ea) a eee ee eM BURMA ete ieee a 58 0 
29: Coaly, slralesiysiWe ol ce's ie 5 ee BN ee et reper Reh IR 2002). 5 0 
BOs: COAL NO AG's Lia. Ske ae aS Caen <I PRR RD ne mau ny wrt 6 0 
Se Sal So a es see ages sails Re ap rt sre an OL Neg ht Cay 13 0 
Dea! MAMASEOMO 5 23.2 22k crerace Si pete te Da eet pe cla eee ah Rp EMORY EAR Sar CF EAN 20 0 
2525 FN Mit 02 Ke Yao ses Meme Mees eae ee set PETROS AU Le LS 7G she lee 8 4 UN a ee A Ls 11 0 
2 Hi] 6] Re: Fla ees ergo ee ee UA UO Uae ha er et i ae ee 0 
seo ste CO EEL Geshe eee UN Vie COaP Ofte PIN RDI OU es Tene ett pen Ar ad eee UZ) 8 0 
SOs BONES Al 6 a he: o-/ sak acelin ea Cine Up SUR Usa cet ae Ya au ante plete RU 4 0 
Dhie INOLKMESCTL DOCS is AK Bred ee eet ec reat ern eae en a ern 34 0 
No. 3 of this section was at one time mined by Mr. Speer, under the 
dépot at New Concord, by means of an incline. It is there thirty inches 
thick, and overlaid immediately by the Crinoidal limestone, five feet 
thick, and exceedingly hard. The coal obtained here was of excellent 
quality, but the bed is too thin to be profitably worked. The same coal 
is worked at Norwich quite extensively by Messrs. J.C. Wiley, William 
Tudor, John Morehead, and several others. It is about two feet thick, 
and of very fair quality. The Crinoidal limestone is there seventeen 
feet above it, and the interval is occupied by shaly sandstone.. 
The Norwich coal has been worked at Norwich, but the banks have 
long been deserted, and no measurement could be made there, but it is 
said to’ be two feet thick. In a run north of Norwich, crossed by the 
Adamsville road, it is seen twenty inches thick. The limestone, nine 
feet below it, is blue on the fractured surface, but weathers buff, is fossil- 
iferous, and very tough. It is the “flint rock,” No. 8, of the oil-boring. 
The absence of Coal No. 7a in the boring renders somewhat uncertain 
‘the identification of Nos. 25 and 30 of the section; but the Norwich lime- 
stone is present in the western portion of Guernsey county at from one 
hundred to one hundred and fifteen feet above the Cambridge coal (No. 7). 
The interval in the boring between the limestone and No. 25 is only 
about one hundred and twenty-five feet, so that I am inclined to regard 
No. 25 as the Cambridge coal. The interval between Nos. 25 and 30 is 
one hundred and five feet, which is greater than is usually seen between 
Nos. 6 and 7 in Muskingum county, though about the same as in Guern- 
sey and Tuscarawas counties. The intervals between the coals of the 
Barren Group, that portion of the series between Coals No. 6 and 8, seem 
to diminish westward and northward from a line running through Mus- 
