1268 GARRETT COUNTY [ART. 12.

lessee or individual so mining, and shall be at all times accessible
to the said inspector for reference only.

1878, ch. 157.

156. The owner, lessee or agent of every coal mine that may
now or hereafter be in operation in the said counties of Garrett.
or Allegany, whether worked by slope, shaft or draft, shall
provide and establish for every such mine a proper system of
pure air ventilation by such modes as are now in use in the coal
mines of Garrett and Allegany counties, which said ventilation
shall be maintained through every working heading throughout
the entire mine, so as to expel from said mines the noxious gases
and impnre air, and thus keep the entire mine in a healthful
condition for the men working therein, and free from danger to
their lives from such impure air and gases.

Ibid.

157. To secure the proper ventilation of every coal mine in
the counties of Garrett and Allegany, and to provide for the
health and safety of the men employed therein, the owner, lessee
or agent of each mine shall employ a competent and practical
inside overseer, whose duty it shall be to keep a careful watch
over all the ventilating apparatus that may be placed in said
mine, as well as all the air-ways, all the traveling-ways, and all
the timberings, and to see that all loose coal and rocks overhead
are carefully secured against falling upon any of the miners,
engaged at work therein, as they advance in their excavations;
and it shall be the duty of the inside overseer so employed to
take charge of and keep a careful watch over all things connected
with and appertaining to the safety of the men at work in the
mine, and to report to the owner, lessee or agent of said mine
when and where anything under his charge is unfit for mining
purposes; and it shall also be the duty of the inside overseer so
employed to take charge of and pay strict attention to all the air
doors used in the ventilation of said mines; and all air doors used
in the ventilation of said mines shall be suspended in such a
manner that they will close of their own accord.

Ibid.

158. The owner, lessee or agent of every mine in operation
in the said counties of Garrett and Allegany shall furnish at