STATISTICS AND INFORMATION. 2797

workman needing timber shall notify the operator at least one day in ad-
vance, giving the number, size and length of props, cap-pieces and other
timber required. In case of emergency, such materials may be ordered in
such a manner as the operator may provide; and if the necessary materials
cannot be supplied when required, the mine foreman shall instruct such
workman to vacate the place until such materials have been supplied.
Provided, That before the miners start work in any such mine, where
work has not recently been carried on, the operator shall first properly
timber the entry, room, or other excavation, lay up track thereto, and pre-
pare the same ready for such work.

1922, ch. 307, sec. 121.

122. The operator shall keep on hand at all times a sufficient quantity
of materials, supplies and facilities required by the provisions of this sub-
title or regulations thereunder, to preserve the health and safety of em-
ployees. Whenever the operator cannot procure am/ of such materials, sup-
plies or facilities then presently necessary, he shall notify the mine foreman
to withdraw the men from any mine or portion of mine affected until such
materials, supplies or facilities are received.

1922, ch. 307, sec. 122.

123. The Bureau shall prescribe regulations governing the quality
and tests of illuminating oils used in mines of this State, which tests
shall be applicable to all oils and other illuminants offered for sale and
purchased for use in such mines; and no oils or other illuminants shall be
sold, purchased or burned for illuminating purposes in any such mine
unless such oil or other illuminant has been tested and certified by the
Bureau; and shall prescribe regulations governing the transportation into,
storage and use within such mines of illuminating and lubricating oils and
other illuminants for any purpose intended.

1922, ch. 307, sec. 123.

124. Any person who shall sell for use in any mine, or any employee
who shall use, or any operator or mine foreman who shall permit to be
used in any mine. in this State, any oil or other illuminant other than as
prescribed by this subtitle or regulations thereunder, shall be guilty of a
misdemeanor; and it shall be the duty of the district mine inspector, when-
ever he suspects that this subtitle has been violated, to take test samples of
any illuminant and subject the same to the test prescribed by the Bureau
under this subtitle.

TITLE VI—DANGEROUS CONDITIONS IN MINES.

CHAPTER XVIII—Dangerous Oases in Mines.

1922, ch. 307, sec. 124.

125. Accumulations of gas shall not be removed from a mine or part
of a mine by brushing or the use of water; and any operator, mine fore-