ALBERT C. RITCHIE, GOVERNOR. 703

SEC. 56. Every such operator shall give the Bureau im-
mediate notice in such manner as such Bureau may prescribe,
in any of the following cases:

(a) When any change occurs in the name of the operator
of a mine, or of an executive official concerned in the opera-
tion of such mine; or in the designation of such mine.

(b) When, a mine has been abandoned, or the working
thereof discontinued.

(c) When work has commenced for the purpose of open-
ing a new mine; together with sketch maps outlining the
plans intended to be pursued in opening the same.

(d) When the working of a mine is resumed after an
abandonment or discontinuance for a period exceeding two
months.

(e) When a squeeze, crush, or fire occurs, or a dangerous
body of water or explosive or noxious gas is found.

SEC. 57. Every such operator shall have authority to adopt
such regulations, not inconsistent with this Act or the regula-
tions of the Bureau pursuant thereto, as the Chief Mine En-
gineer may approve; which regulations shall apply only to
such matters as tend to the preservation of life, health and
property and the prevention of injury to the employees of the
mine; and which regulations shall be printed by the operator
in all languages spoken by not less than ten employees at such
mine, both in pamphlet form for distribution to every em-
ployee desiring the same, and upon large placards to be posted
at conspicuous places at and within the mine; and when so
posted all the employees shall be deemed to have notice and
to have agreed to the provisions thereof; provided, that noth-
ing herein contained shall be construed to deprive the operator
of any mine subject to this Act of any power of ownership,
management and control not affected by this Act or existing
law.

SEC. 58. Every such operator shall obtain from the Bureau
and keep on hand at the mine a supply of the printed laws,
rules, regulations, notices, forms and record books required
by this Act. and shall see that such supplies are delivered to
the proper persons in his employ and are by them properly
cared for and used, or distributed when their distribution is
required.

SEC. 59. Every such operator shall require the superin-
tendent or managing official in charge of such mine, at least /