Reports of the Inspectors of Mines of the anthracite and bituminous ...

458 Eeports of the Inspectors of Mines. [Off. Doc.
M'as reasonable, but the return airway leading- to the furnace was in
bad condition. Quantity of air passing- into the mine, 9,000 feet per
minute.
Mines No. 2, J/., 5, Soutlnoest and Pacific.—Operated by the Youghiog-heny
River Coal Company are in reasonably o^ood order. The
quantity of air passing- in each mine when last measured was, for No. 2,
45,680 feet; No. 5, 35,000 feet ; Pacific, 20,000 feet; No. 4 and South-
west, 45,000 feet per minute. These are all larg-e mines. The ventila-
tion is produced by four furnaces, but on account of the large area of
territory in operation and worked out, the furnaces will soon be found
inadequate to produce the required air current; in fact, during the
summer season the want of more air in all the mines, except No. 5, is
already being- felt, especially in the Pacific, which needs a more powerful
ventilator at once. No. 5 is well supplied with ventilating power
for years to come.
West Newton No. 2.—This mine is in good condition, all parts of mine
are well supplied with fresh air. Quantity, 34,080 feet per minute.
Poi't Royal No. 2.—The general condition of this mine is favorable.
Total volume of air passing into the mine when last measured was
94,800 feet per minute, a good supply being distributed to the face of
the workings. A larg-e quantity of explosive gas is generated in this
mine which necessitates at all times a sweeping- air current to keep the
workings in a safe, healthy condition. It also requires constant and
unceasing- vigilance on the part of the mine officials to prevent accumula-
tions of gas from which accidents may result.
Darr.—This is a new operation opened the latter end of 1890. It was,
when last visited, in pretty good order, with a volume of 12,500 feet of
air passing- per minute.
Mines on the Little Satv Mill Rim Railroad.
Enterprise.—They are at present erecting- a 25' diameter fan which
will be ready for operation about May. During the past year the
quantity of air has decreased below that of former years, but when the
new fan is put in operation there will be an abundance of air for all pur-
poses, with plenty of reserve power in case of necessity. The fan is
strongly built and is being substantially erected on top of a larg-e shaft
sunk especially for that purpose, and will take its air from inlet shafts
sunk at the face of the mine. The return airways have been enlarged
for a long distance and in a short time this will be the best equipped
mine for ventilation in the district. Quantity of air in circulation when
last measured, 37,220 feet per minute.
Venture.—The ventilation in this mine is below the requirements
they have more than 100 cubic feet of air for each person employed, but
there is, in my opinion, urgent necessity for a much greater volume than
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