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dences of character and general fitness; such application to be made within
six months after October 1, 1922. Such certificate shall be endorsed as
"service certificate"; be similar in form to a certificate of competency and
have like effect for the purposes of this sub-title, while the holder thereof
remains in the employment of the same operator and for a period not
exceeding five years from and after the passage of this Act. A fee of three
dollars shall be paid by the applicant therefor to the State, before such
certificate is issued.

TITLE IV—MAPS AND SURVEY.

CHAPTER VI—Maps Required.
An. Code, 1924, sec. 47. 1922, ch. 307, sec. 46.

47. The operator of any coal mine in this State shall make, or cause
to be made by a competent mining engineer or surveyor, an accurate map
of such mine for each seam of coal worked, on a scale of not less than two
hundred feet to the inch, which map shall show as follows:

(a) The boundary lines of the property, the location of all buildings,
railway tracks, wagon or other roads, rivers, streams, lakes and ponds, with
the depth thereof indicated, and other important landmarks on the surface
of such property; with connecting lines of contiguous properties indicated
and especially any lines with relation to contiguous mines or coal prop-
erties.

(b) The openings, excavations, shafts, slopes, drifts, tunnels, planes,
entries, rooms and cross-cuts, and the name and/or location number of
each, if so identified.

(c) The elevation datum at top and bottom of each shaft and slope and
of all drifts, tunnels, planes and at the faces of entries, as found at each
semi-annual survey; and in rooms and entries adjacent to boundary lines
between such mine and any adjoining mine, at points not more than three
hundred feet apart; with the date of entry of each such datum; the loca-
tion and elevation of any body of water dammed within or held back in any
portion of such mine, giving as nearly as ascertainable, the true area of
such body of water.

(d) The direction of the air currents in such mine, indicated by arrows.

An. Code, 1924, sec. 48. 1922, ch. 307, sec. 47.

48. Whenever the workings of any mine approach within three hun-
dred feet of the boundary line between such mine and any adjoining mine,
the operator thereof shall notify the district mine inspector; who shall
ascertain whether the workings of such adjoining mine are, at their nearest
point, within three hundred feet of such boundary line, and immediately
inform the operators of both such mines; and such operators shall have
the approaching workings of such mines surveyed and shown upon the
maps of both mines; and for the purpose of such mapping such inspector
shall give written permits to engineers of either or both operators to enter
and survey such adjoining workings of either mine.

An. Code, 1924, sec. 49. 1922, ch. 307, sec. 48.

49. The original map hereinbefore provided to be made, or a true copy
thereof, shall be kept in the mine office at the mine, for the use of the mine