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

No. 10. SEVENTH BITUMINOUS DISTRICT. 409
were measured near the face of the butt entries. The coal is mined
by hand labor and is hauled to the bottom of the slope by animal
power. The whole outside plant, with the exception of the fan and
fan house, was destroyed by fire on October 21) and no coal has been
mined since.
Boon.—Was in fair condition, but is not beyond improvement. I
measured 23,000 cubic feet of air per minute passing at the outlets,
but the air currents were rather sluggish near the face of some of the
entries. The system of working is that of double entry. The coal is
mined by hand labor and the hauling is done by animal power. The
ventilation is produced by a furnace.
Allison.—This mine was in reasonably good condition.
Quantity
of air passing near the face of the different entries, about G,000 cubic
feet per minute in each entry, and 31,300 cubic feet were measured
at the outlets. The coal field is being developed on the double entry
system. The mining is done by hand labor and the coal is hauled
from the mine to the tipple by animal power. The ventilation is produced
by two fire baskets. The drainage is also satisfactory at the
present time.
Enterprise No. 2.—Operations were resumed at this mine the
latter part of June, after a shut down of over one year. The drainage
is imperfect, part of the workings being under water. The system of
working is by double entry, and the coal is hauled from the cross
entries by mules, and is
then taken up the slope by the head line
system. The empty trips are run back into the mine by gravity,
with the wire rope attached to the last car. The coal is mined by
hand labor, and the ventilation is produced by a small fan. Quantity
14,700 cubic feet per minute, the same
of air passing at the outlet,
being pretty well distributed to the face of the workings.
Northwestern.—Was not in good condition when last examined, the
air current was sluggish and the roadways were not properly drained
and the shelter holes, in same cases, were obstructed by slate. Quantity
of air passing at the inlet, 11,500 cubic feet per minute, and about
4,500 cubic feet was measured near the face of the entries. Very
little work has been done for over one year past. The entries are
driven double. The coal is mined by hand labor and is hauled to
the bottom of the shaft by animal power. The ventilation is produced
by a small fan, which will not produce the recpnred air volume
when the mine is in full operation.
Vulcan.—This is a new operation opened during the year. The
coal field is being developed in part on the treble entry system, while
some of the cross entries are being driven double. The works are
equipped with all the latest imj)rovements for handling a large output
of coal at a minimum cost. A 13|-foot Capell fan 5^ feet wide
has been placed in position to [)roduce the ventilation. I made a