STRATIGRAPHICAL ORDER. 71 
tound, with the same interval as at Osnaburg. The Upper coal has 
fallen here to 540 feet above Lake Erie. Both coals have been mined 
in the immediate neighborhood. 
The Middle Kittanning coal being 540 feet above L. E., the Upper 
Freeport, according to the measures last found, should come in at 660 
feet above L. E., or thereabouts. On the Shull Hill, one mile north of 
Robertsville, this seam is found 24 inches thick, but capped with 5 feet 
of blackband ore, at an elevation of 147 feet above the Middle Kittan- 
ning coal. This places it at 687 feet above L. E., higher by 20 feet 
than we had expected to find it. There are two other farms in the same 
neighborhood high enough to hold it, viz., the Wolf and the McNutt 
farms, and on both of these the coal, capped with the ore, occurs at the 
same level. On the Grafton Furnace Company’s property, just over 
the line in Osnaburg township, the distance from the Middle Kittan- 
ning to the Blackband coal is 118 feet. On all of these tracts, the ore 
has been extensively worked. A conclusion which we cannot receive 
without surprise, is thus forced upon us, viz., that the great blackband 
horizon of Stark, Carroll, Tuscarawas and Guernsey counties is the 
Upper Freeport horizon. This conclusion will be shown to be estab- 
lished on the firmest grounds before the subject is dismissed. 
Passing down the railroad, we find one mile below Robertsville, 
on the farm of Joshua Unkefer, a section from the Middle Kittanning 
coal to the Upper Freeport that is distinct and clear, and that cor- 
roborates the measurements already taken. 
The Middle Kittanning coal has been opened by the side of and at 
the level of the railroad, and 147 feet above it we find a characteristic 
showing of the Upper Freeport horizon, containing coal, clay and lime- 
stone. It is as follows: 
Upper Freeport coal, rotten and worthless .. ................csssesees 1 foot. 
SIMO =C LAV emmeceecie cae ee tnaccu aac cokes te say dee site vehise as aod audadedcstteeeae one. Pe ATCeLs 
Wppensreeportalimestonedy.c..ccesces-ssceccseeces ceoesseiicen snes ss seecscs 2 
inte mvaleCOncealedeeetn reruns ssuc nen tse es nowecshs tcueaat cel eaccewetec de 45 
Sandstone, quarried (Lower Freeport).............c.csccscscesesseceecees 193 
Inverell COM CCM Aten ccwate ede eee west sooon css roceee wouseeuteasn veces is 
Mir ewker irate Coat sc.ncnsscsstecoccoteescn see saeseeeseesesetocoocesos« SD HoN 
Lower Kittanning coal reported below. 
The limestone has been quite extensively quarried and burned on 
this farm, and also on the adjoining (Eckerman) farm. The interval 
