ART. 11.] FREDERICK COUNTY. 783

to time, of the grades, lines of any street, lane or
alley or part thereof, now or hereafter marked, located
or laid out in said city; to regulate the use of streets, high-
ways, roads, public places and sidewalks by foot passengers,
animals, vehicles, cars, motors and locomotives and prevent
encroachment thereon, and obstruction of the same; to regulate
the opening of street surface, for the purposes authorized .by
law or ordinance; to regulate the numbering of houses, lots,
streets and avenues, and the naming of streets, avenues and
public places; to regulate the use of sidewalks for use of signs,
sign-posts, awnings, posts, horse troughs, telegraph posts, trol-
ley poles, electric light poles, telegraph wires, electric light
wires, and for any and all other purposes, and to prohibit the
erection of any posts, poles or wires and to compel the removal
of any posts, poles or wires in, over or above any street, side-
walk or highway; to clean the streets and remove the dirt and
filth therefrom and to prohibit and punish by ordinance the
placing of any dirt, filth or other matter therein, and to pro-
tect any pavement by prohibiting the travel thereon; to regu-
late the use of streets, lanes and alleys in said city, by railway
or other tracks, gas or other pipes, telegraph, telephone, electric
light or other wires and poles in, under, over and upon the
same, and to require all such wires to be placed under ground
after such reasonable notice as it may prescribe; to provide a
series of conduits under the streets, lanes and alleys of said
city, or any part or parts thereof, for the use of telegraph, tele-
phone, electric light and other wires, either by constructing
said conduits itself or authorizing their construction by such
person or corporation, and upon such terms as may be agreed
upon; to require all such wires, or any part or parts thereof,
and the poles carrying the same to be removed from the surface
of the streets, lanes or alleys of said city or any part or parts
thereof, and to require such wires to be placed in such con-
duits, all under such penalty as it may prescribe; to prescribe
and establish reasonable rentals to be paid by any company or
persons using any of said conduits by whomsoever the same
may be constructed for the use thereof, and to provide for the
collection of such rentals, in addition to the ordinary processes,
by such summary methods as it may deem appropriate; and
the Mayor and Aldermen of Frederick shall have power, by
ordinance, to prohibit or regulate the keeping of swine, hogs
and pigs, within the corporate limits of Frederick city, and
may by ordinance prohibit or regulate slaughter houses within
the corporate limits of said city; provided, that before any ordi-
nance excluding the keeping of swine, hogs and pigs within the
corporate limits of Frederick city, or any ordinance prohibiting