COAL SEAMS OF HOLMES COUNTY, 821 
shown in the figure. On the farms adjoining westward the limestone 
has only its normal thickness of 3 or 4 feet. The upper coal seam, in 
Fig. VI, lying 30 feet above the Ferriferous limestone, is doubtless the 
true No. 6. This is the locality, 3 miles north of Black Creek, 
frequently referred to in previous volumes as carrying seven workable 
seams of coal. Their positions are here shown. 
The relations of the Lower Kittanning coal are shown in Fig. V. 
It is missing, as before mentioned, in most of the county. 
The Middle Kittanning coal (No. 6) lies 25 to 50 feet above the 
Ferriferous horizon, the smallest measures being in Killbuck town- 
ship. 
The Freeport sandstones fill the interval of 60 to 75 feet up to the 
Upper Freeport coal (No. 7). No good exposures of the Freeport 
limestones were observed, though fragments, which must be referred to 
these horizons, were met with in a number of places. 
CoaL SEAMS. 
Sharon Coal (No, 1). 
In the western half of the county this seam may be found above 
drainage, and has been opened at a good many points in Hardy, Prairie, 
and Monroe townships, the latter township constituting the most fertile 
field. The structure of the seam at Stephen R. Williams’s, in Central 
Monroe, is shown in Fig. VIII to consist of an upper bench ot 1 foot, and 
a lower one of 2 feet. The analysis of the benches, separately, by 
Professor Lord, is given below: 
Sharon coal, S. R. Williams, Monroe township. Upper bench. |} Lower bench. 
IVIOISEU CO eee erreeee teas ainen scisee Sercte wise boreretedlvce Ge hiee Selees 5.62 6.57 
Volatile combustible matter..............cccccccossesscse cece: 41.65 41.44 
Ebi CG Cars Oreste eee aerack oc ane Sa eteiwe Sapaie cs atcasaesoehed eles 48.25 47.49 
JANBID 6000000960000 005606000 900000 BOCCONI BOSCOOLIDOIGEHOO 2000000600000 : 4.48 4.50 
STL al eres cate trices woe ae Nana cataract wblese 100.00 100.00 
