876                                        LAWS OF MARYLAND                            [Ch. 4

(Z) "POTENTIAL" OR "VOLTAGE" MEANS ELECTRIC
PRESSURE AS DETERMINED BY THE VOLTMETER.

REVISOR'S NOTE: This subsection presently appears
as Article 66C, section 486(q) of the Code.
The only changes made are in style.

(AA) "SECRETARY" MEANS SECRETARY OF NATURAL
RESOURCES.

DEVISOR'S NOTE: This subsection is new language
added to avoid the repetitive use of this
phrase throughout the title.

(BB) "SHAFT" MEANS AN OPENING, THE AXIS OF WHICH
IS APPROXIMATELY VERTICAL, EXTENDING DOWNWARDS FROM
THE SURFACE. IT INCLUDES AN UNDERGROUND SHAFT DRIVEN
BETWEEN TWO LEVELS.

REVISOR'S NOTE: This subsection presently appears
as Article 66C, section 486(r) of the Code.
The only changes made are in style.

(CC) "SLOPE" MEANS AN INCLINED OPENING IN A
DIPPING COAL OR FIRE CLAY BED, AND AN INCLINED TUNNEL
TO A COAL OR FIRE CLAY BED.

REVISOR'S NOTE: This subsection presently appears
as Article 66C, section 486(s) of the Code.
The only changes made are in style.

(DD) "SUPERINTENDENT" MEANS THE PERSON WHO, ON
BEHALF OF THE OPERATOR, HAS IMMEDIATE SUPERVISION OF A
MINE.

REVISOR'S NOTE: This subsection presently appears
as Article 66C, section 486(t) of the Code.
The only changes made are in style.

(BE) "SURVEY" MEANS THE MARYLAND GEOLOGICAL
SURVEY.

REVISOR'S NOTE: This subsection is new language
added to avoid the repetitive reference to
this phrase throughout the title.

(FF) "TUNNEL" MEANS A LEVEL OR INCLINED
PASSAGEWAY DRIVEN MAINLY THROUGH BARREN STRATA. IT
MAY OR MAY NOT COME TO THE SURFACE.

REVISOR'S NOTE: This subsection presently appears