Report of the Bureau of Mines of the Department of Internal Affairs of ...

270 REPORT OF THE INSPECTORS OF MINES. Off. Doc.
dition, and was well pleased to learn that those in charge had taken
steps to prohibit the use of impure oil in the mine. The quantity of
air passing at the outlet was ."ifMHIO cubic feet per minute. This volume
enters at three separate inlets, and is well carried up to the face
of the workings. The mine is also well drained. Mine foreman,
George Carroll.
Mines On and Near the Youghiogheny Railroad, AVhich Runs From
Irwin, on the V. 11. 11., to Sewickley, on the P>. ^^ O. K. K.
JVun (lus No. 2 Shaft.—This mine has been kept in fair condition.
On my last visit, the (juantity of air passing at the outlet per minute
was 43,120 cubic feet. This volume was divided into three splits
and was well distributed around the workings. The drainage
is very good. Mine foreman, William Jamison.
l*enn (Jas No. Shaft.—Idle the entire year.
'.\
Penn (Jas No. -4 Drift.—This mine has been idle since August last
and was not in operation when visited. I measured 13,200 cubic feet
of air per minute passing at the inlet. This was being produced by
natural forces, as the furnace was not in operation. Mine foreman,
James Absalom.
Mines On and Near the Manor Branch of the Pennsylvania R. R.
Claridge Drift.—This mine is in reasonably good condition. The
quantity of air passing at the outlet when last measured was 21,0(10
cubic feet per minute, which was being fairly well conducted to the
face of the workings. There is some talk of installing a fan at this
mine in the near futui-e, which, I hope, will be done, as the i)illar
workings give oft" considerable black damp (C. O.^), and from present
indications it will be only a short lime until the furnace will be unable
to produce a suflicient (pianlity of air to remove it. The di'ainage is
very good. Miii