840 GEOLOGY OF OHIO. 
it, is left for the roof. It may not be very good coal, but I think it is sure 
to be very dry burning, and it should be investigated. I obtained the 
following measurements of that portion of the seam mined: 
FE) IN 
OF) Rs ee ee ality SURI Sy RE C5 5c, GOGO CE Ie 2 7 
Partin go .2 a2 soe se ee Se ee rar I ar a are Sp ts BO 
COA) cic se cease kee eles ee Eee eice ck eh pe lemme Ce IE 2 
EES oc8 oca6 28a6 900 0 85 990000 5a09 So508s damaS0 SSODSS GObasE Sera Pate 4 
Coals neces Peete ee PLEA ce eee es mites eee ne se 1 6 
The quality of the coal is good, and is reasonably dry-burning. Since 
my visit the furnace has commenced its blast, and the coal is feperied to 
work satisfactorily. 
I have no detailed measurements of the coal in the upper part of the 
Snow Fork valley. In the Report for 1869, reference is made to the coal 
on the land of A. Marshall, Section 35, Salt Lick township, Perry county. 
It was then reported to me to be eleven feet thick, but the pit being filled 
with water, no measurements were possible. I have since visited the 
place but the water was still in the way of measurement. About three 
_ hundred yards above the Marshall opening, Mr. Thomas Black bored for 
the seam and found it six feet thick, twenty-seven feet below the surface. 
On the land of Bayliss Glenn the Nelsonville seam is quite thin, two feet 
six inehes, if that be it which appears in the floor of the spring-house. 
Twenty feet and eight inches higher is a thin unopened seam, the inter- 
val being yellow clay shale, and at an elevation of eighty-two feet, by 
barometer, is another seam reported to be three and one-half feet thick and 
of excellent quality. This upper one is doubtless the Bayley’s Run seam. 
Kast of Bayliss Glenn’s, in Bear Run, on the Maxwell land, a shaft was 
sunk to reach the Nelsonville seam. It was found to be quite thin. 
About forty-five feet above the seam in the shaft is the middle or Norris 
coal, and about forty-five feet higher the Bayley’s Run seam. The last 
interval was wrongly given in the Report for 1869. On the profile map, 
published with the Report of the State Inspector of Mines, the latter 
seam at this locality is stated to be the ‘‘Great Vein.” In the shaft large 
concretionary masses of an exceedingly hard sandy limestone, were found 
embedded in a laminated sandstone twelve feet above the Nelsonville 
coal. Such masses are very common on some of the branches of Sunday 
Creek, in places where the coal is thin and the shales over it have been 
disturbed. That the thin coal in this shaft is the Nelsonville seam, I 
have not the least doubt. Its place along Snow Fork is everywhere ap- 
parent, and the regular dip should place it beneath the surface on Bear 
Run. The two seams of coal above hold to it the same relation they 
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