378 GEOLOGY OF OHIO. 
is a local one; the towns to the north and west generally send their 
wagons to this bank for their coal supply. Unfortunately, there is a 
large fissure in the floor of the mine through which comes a flow of water, 
necessitating constant pumping. 
The succession of rocks in this region of the Coal Measures, according to 
Mr. Julian Humphrey, is as follows, and as he is senior partner of the 
Diamond Coal Company, and a man who has had thirty years’ experience 
in drilling for coal, his statements are deserving of credit : 
FT IN. 
ig MD TEED Re ote ae ACR hk Ae a RE eh Ep aT at ae 20 3 
2 aC OATS |SANMAS TOMO hom cen stale eee er aoa nyt a nT TEs ee ape 40 
37 MOAT KSOFb shal ey Wes has oe ae RO cles Sy crenhc annie Ee Ope Rae 6 
AMS NSA ob 8 ean od ee hse os a oe ee ka ene men nar eNOS a eum Ay ey ahora eS Spears 4 to 6 
WMG LAV iS MALO ciewiat ie see Ate Aes eres ee ee UN rs St Ma aN Le 16 Aide Li 
6 Chocolate shale coi abe see peck pace | namo ae e i peE ea maine Re LG ees 
Me ear ku Shales cis) eats eee ie a thes ei ean apd er aL aa 16 
Bap ly © O a gee ee Wah Ne crease ei estas han ee B ct ie ROA UR Re 3 to 5 iets 
Oe IRS = Clay Sateen ye ne earn ae ( 1 to 6 
10. Fire-stone, ‘‘ Bottom rock.” 
The last stratum, a quartzose sandstone, was not drilled through, as it 
is extremely “hard.” The Conglomerate is supposed to be below the 
firestone. Mr. Coleman has put down perhaps seventy-five drill-holes in 
this section of the State, and says that this, his ideal section, is always 
essentially encountered where coal is found.. 
The roof shales of the Wadsworth coal mines are generally mazes of 
fossil coal plants, all pressed into thin sheets, and printed upon the shale — 
as distinctly as if photographed. The thickness of the coal is, in some 
cases, over five feet, but it is generally thinner, the larger portion of the 
township affording only thin coal. This coal lies in “pockets” (local 
basins), and as it is the lowest in the coal series of Ohio, and forms the 
margin of the great coal basin, it is more irregular than the seams of coal 
which were deposited subsequently. 
The Cong/omerate is seen one and three-fourths miles south of the center, 
by three-fourths of a mile west. A coarse-grained sandstone, locally a 
conglomerate, is quarried somewhat extensively at a place one mile north 
of the center of the village, on land owned by Henry A. Mills. The dip 
at the quarry, as made out at the most north-westerly outcropping of the 
ledge, is toward the north-west, and would seem to be a local exception 
to the general dip. This is explicable on the supposition that here was 
the limit of this deposit, and the slope was naturally to the shore, the 
dip being in the opposite direction or south-east. 
The Conglomerate overlying the coal would appear to be the result of 
