840 ARTICLE 23.

mission. Such reports shall be in the form, cover the period and be sub-
mitted at the time prescribed by the Commission. The Commission may,
from time to time, make changes and additions in such forms, giving to the
persons, or corporations and municipalities six months' notice before the
time fixed by the Commission as the expiration of the fiscal year of any
changes or additions which would require any alteration in the method or
form of keeping their accounts for the ensuing year. When such report is
defective or believed to be erroneous the Commission shall notify the person
or corporation making such report to amend the same within thirty days.
Any such person or corporation which shall neglect to make any such report
within the time specified by the Commission, or which shall fail to correct
any such report within 30 days after notice shall be liable to a penalty of one
hundred dollars, and an additional penalty of one hundred dollars for each
day after the prescribed time for which it shall neglect to file or correct the
same, to be sued for in the name of the State Maryland. The amount re-
covered in any such action shall be paid to the State Treasury, one-fourth
thereof, however, to be paid to the Mayor and City Council of Baltimore.
The Commission may extend the time herein limited for cause shown.

Have power, either through its members or inspectors, or employees,
duly authorized by it, to enter in or upon and to inspect the property, build-
ings, plants, factories, power-houses and officers of any such corporations or
persons.

Have power to examine the books and affairs of any such corporation,
person and to compel the production before it of books and papers per-
taining to the affairs being investigated by it.

Have power, whether as a Commission or through its members, to sub-
poena witnesses, take testimony and administer oaths to witnesses in any
proceeding or examination instituted before it, or conducted by it in ref-
erence to any matter within its jurisdiction upon this article.

The Commission shall appoint inspectors of gas and electric meters,
whose duty it shall be to inspect, examine, prove and ascertain the accuracy
of any and all gas meters used or intended to be used for measuring or
ascertaining the quantity of illuminating or fuel gas, or natural gas, fur-
nished by any gas corporation to or for the use of any person, and any and
all electric meters used or intended to be used for measuring and ascertain-
ing the quantity of electrical current furnished for light, heat and power
by any electrical corporation to or for the use of any person or persons, and
when found to be or made to be correct, the inspector shall stamp or mark
all such meters and each of them with some suitable device, which device
shall be recorded in the office of the Secretary of State.

No corporation or person shall furnish or put in use any gas meter
which shall not have been inspected, proved and sealed, or any electric meter
which shall not have been inspected, approved, stamped or marked by an
inspector of the Commission. Every gas and electric corporation shall pro-
vide and keep in and upon its premises a suitable and proper apparatus, to
be approved and stamped or marked by. the Commission, for testing and
proving the accuracy of gas and electric meters furnished by it for use, and