256 GEOLOGY OF OHIO. 
Coal No. 4 is known, locally, as the “limestone coal,” though the gray 
limestone is rarely seen. It is usually a cannel, of little value, and is not 
mined. Many years ago it was worked by stripping in section 8, on prop- 
erty now belonging to Mr. Oscar Riney. It may be seen in a run, near 
Johnson’s Mill, where it seems to be about twenty inches thick. 
At Johnson’s Mill, as well as at Otsego, the lower layer of the sandstone 
over Coal No. 6 is, in the bottom two feet, a conglomerate of iron ore and 
sandstone. The ore is apparently of average quality, but its association 
with the sandstone is such as to render it worthless. It is referred to 
here only because some might be led to expend money in exploring it. 
Any money so spent will be wasted. 
Highland Township.—On the Adamsville road from Norwich, Coal No. 
76 is seen at several places, lying a few feet below the Crinoidal lime- 
stone, but is nowhere worked, as its thickness seldom exceeds sixteen 
inches. At Mr. Tait’s, on this road, the Norwich coal is seen at the road- 
side, and is mined near by, by stripping. As nearly as could be ascer- 
tained, the thickness is two feet. The limestone isabsent. About a mile 
north, Mr. John Cherry works the same bed, and finds it from two and 
one-half to three feet thick, with six inches of slaty coal. At both locali- 
ties Coal No. 76 is seen, barely one foot thick. 
Along Limestone Ridge, which coincides with the Norwich anticlinal, 
the Crinoidal limestone and the buff limestone, underlying the Norwich 
coal, are frequently exposed, and the interval between them varies from 
twenty to fifty feet. The latter disappears before reaching Bloomfield, 
where the Crinoidal limestone appears in the Otsego road. Near that 
village Mr. Oliver Rankin has an opening in the Norwich coal, which 
gives the following section: 
FT, IN. 
bw ohaletsin ees tes ce pe aie ce pas & Failed a a ae ee a 3 5 
DENG OAs esos Gene Bec a) tiala Sy oS OSI Ne UATE e ROB SOE EER UAE 1 9 
on HC aye jg28cc tbc oee eh iota e eee Reber Remeron eptan Rie ereee erent 0 2 
BPEL) ye cic yore eres Lee eee IS SR Sr Se Re POE Pe eRe Payee ve LE Te a (Ea RUBE 0 8 
Bem ire Clay acisiats tiers Scie re hi cle ers ee RP a cpa ee cine i pee 6 0 
GcLIMestonO.idad dud en ccicee ke ae ee Ie ee eect ears ee ee ene 8 0 
The coal is compact and hard, and meets with much favor. Black- 
smiths use it, and pronounce it a very fair coal. Near the road from 
Bloomfield to New Concord, the Norwich coal is worked on the old Murphy 
farm. We there find: . 
DING 
Dee San USEOME sales Share a ae Eo Ne aca et PT pT 0 0 
Deep Warksshrale' cts iysiaie Uae Sik elec BNP k tie ANT eA aie le mene EA AES pe 2 6 
“Slee O01 I epee ae er Ee a aE EN eh oe Ose OE OSE 2 9 
Av SPIT O-CLAY s sja.aicice 3 eis cla on she SNE te eee oe ere AU 0 0 
Sis MEIMEStONe eos s 5 5 Lae Se See ee es arrearage aL Sa a 0 
