202 GEOLOGY OF OHIO. 
MGISbUTE i cesceuescitedtioe ac nentec aren eee Benes boar ostioaeean aes aabace dumamecuemesees 2.32 
Volatile mattericccccccc.cascescsccscs soe cccsse nese ecsees cones cosca cecacoseenees 39.08 
Fixed Carbon 160: Aaerseece cuteness coe Beth Lome sa tito stakes seis at taccinstulesee cnenss 52.78 
Ash i 0eh Ses ae ee ee PUT LN. cot Sbacacmteeek tote ieee an eee meee 5,82 
Ota ek Niece vetead cacevies ope adnaseeles tee eee s ace tee eee 100 
PSHBUOIODEP 560060900006 00506000008000 4000055600 velstseeisheset unico aeaemcsecti sacs 2.88 
There are seven mines in operation on the Upper Freeport coal at 
Salineville, with a daily capacity of over 1,200 tons. The territory 
immediately adjacent to the town is nearly exhausted, not less than 600 
acres having been already worked, but a noble body of coal is now 
being proved, and in part developed to the northeast of the town on 
both sides of Tidball’s Run. Enough proving has been done to war- 
rant the statement that the supply for a long term of years is to be 
found in this field. It will be attacked from the valleys of the West 
Fork of Beaver as well as from Yellow Creek. , 
The Salineville Coal Company is advancing into this new territory 
through coal fully 6 feet thick. On the west side of its property, near 
the railroad, the coal is low, not yielding more than 3 feet, but the seam 
is at its best as it is followed north and east. Where the coal is thin, 
it is the bottom bench that is wanting, contrary to the usual experience. 
Salineville thus appears to be located near the southern rim of the 
particular basin of the Upper Freeport coal, to which it gives its name. 
The coal runs down rapidly in height to the southeast of the village, 
becoming too thin for mining, within 3 miles. It does not recover its 
thickness in this direction until it nears the Ohio River, where another 
but smaller basin is reached. It also loses thickness to the west, having 
been opened but abandoned in Fox township; but to the southwest, as 
to the northeast, it holds its vélume. The axis of the basin is thus seen 
to extend in a northeasterly and southwesterly direction from Saline- 
ville. The Manufacturers’ Coal Company holds coal of good thickness 
as it advances in the latter direction. 
The coal of the Big Vein is sent to market after having been 
passed over 14 or 13-inch screens. From #4 to $ of the coal that is 
brought out of the mine comes out as nut and slack. Over an inch and 
a half screen, the best mining will lose 4 of the coal. The coal is 
blasted, but the quantity of powder used is not excessive. It will 
probably range at about 3 cents to the ton. 
An effort has recently been made to utilize the slack of the seam 
