$24 GEOLOGY OF OHIO. 
FIGURE 1K 
LOWER MERCER COAL, (N23) E MAST Ano E.M.WHEATON 
HARDY TP. 
Lower Mereee Limestone (Blue) es a AQ? 
yh, ROA ol) Oa RC A abi i a an 
Share Vowkiag.----- A Re ee 
Co ON Vere ba aes i LEUtaee at NE co he NR Lae ace AThe{PO fe a 36 9” 
See IC Ce eee Sateen oe g” 
Dard C\ory shata a a See a EO | AQ” 
ScaLe,— Dt tol in, 
thick. The coal is 3 feet thick, with a shale parting of 3 inches, as 
shown in Fig. LX. The lower 8 inches is separated and highly valued 
as a smith’s coal, and commands a higher price. The coal isa dry- 
burning semi-cannel, and comes out in block form. It is bright in 
luster, but with alternate stripes of duller coal, as“tn the block coals. 
It makes little slack; the ash is light and white, containing no clinkers. 
Its composition is given below: 
Lower Mercer Coal, Elias Mast, Hardy Township (Lord). 
Oy (Coy t= | Fb = Hee ees rn ni Rye tia ie hee a rs AL SO Bailar sianiiooadion ne 5.11 
WOLETAUE Coven] HELA ONE THNENT KEI 65060000000000080 908000000000600000080000000 Rie ERAN SAA 41.01 
DCW b:s¥e Ince: o] 0 (0) o Mere Pt Pin ee REO BL ORE ae Oo bob 47.15 
H-=} a RR MRA TOON EAL OS Recs atte aes TIS OF OLE FMI AY on ra Rg Atel be A ee oe 6.73 
To teal es srcielscusbevis ocd baie isin oe aes as taleroe GIs si ate ale Slats le red See RE RN NE en ee 100.00 
Sulphur ccrc sea. cocec ewe cistecnceenscnstacnecosesiacsocccenasemenccnectenecicesecnce: 2.90 
In Monroe and Knox townships there is an area where this coal is 
well developed. At the mine of Henry Dagon, in eastern Knox, the 
seam reaches a greater thickness than elsewhere, showing the following 
section : 
