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

266 REPORT OF THE INSPECTORS OF MINES. Off. Doc.
with the map and description of the hauhige were kindly furnished
by Mr. James S. Mack, chief engineer of the Carbon Coal Company.
All of which is
respectfully submitted.
V^ery respectfully,
C. B. ROSfe,
Inspector.
Description of Mines and Mine Improvements in the Second liituminous
District.
Mines On and Near the Kiver Division of the Allegheny Valley Kailroad.
Lucesco Drift.—Idle the entire year.
Sandy Cn^ek Drift.— I found this mine in very fair condition on
each visit. The average volume of air passing at the outlet was 37,080
cubic feet per minute, which entered at five separate inlets and was
being well conveyed to the face of the workings. The mine is also
well drained.
During Ihe year a new furnace has been built, size 6x7 feet—42 feet
of fire surface. This furnace was built at the outcrop of coal seam,
and a stack 30 feet high erected. On my last visit the furnace was not
in full operation, as the main airway leading from the mine to the
furnace was not completed.
The road through the third hill has been graded and laid with 45-
pound steel rails; the roof has also been taken down, making the
height about eight feet; this was done in order to allow the mine
locomotive to pass through the hill, thereby decreasing the number
of mules in use at present; length of tunnel, about 2, ()()() feet. This
makes three tunnels through wliicli the coal is hauled, and also two
inclined places over which it passes before it reaches the tip])le.
Mine foreman, Josei)h Corbet t.
Plum Creek Drift.—Located near the terminus of the Plum Creek
branch of the Allegheny Valley Kaiiroad River division. This mine
is now in excellent condition in i'eg;ird
to both ventilation ami drainage.
The «iuaniity of air in circulation, when last measured, (KJ.tJOO
cubic feet ]»er minute, which was being well conveyed to the face
of the workings. Mine foreman, John N\'. Sterling.
Mines On and Near the IMttsburgh Division of the Pennsylvania
Kail road.
Weinman Diift.—This is a small mine, employing twelve persons
inside. On my last visit I measured 2,400 cubic feet of air i)er
minute passing in at the inlet. Drainage good. Mine foreman,
\\'einman.