ART. 4.] CITY OF BALTIMORE. 205

HABBOKS AND HABBOB MASTERS.

263. The mayor and city council may make an exact survey
and chart of the basin, harbor and river Patapsco, and may
ascertain the depth and course of the channel of the same, and
if necessary affix buoys or water marks for facilitating and
rendering more safe the navigation thereof.

264. They may cause the basin and harbor, or such parts
thereof as they may deem proper, to be cleansed, scoured,
cleared and ballasted, and all obstructions and annoyances in
and upon the same, whether from vessels sunk or from any
other cause, to be removed, and may levy a tonnage duty of
two cents per ton on every vessel entering or clearing at said
port.

265. They may pass such ordinances as they may deem proper
respecting wharves and wharfage, and the keeping of wharves
in repair BO as to prevent their injuring the harbor or basin, and
for preventing vessels from casting filth or ballast into the same,
and to prevent filth, earth or soil from being thrown from. the-
wharves or land into the said basin or harbor so as to fill up the
same or obstruct the navigation thereof.

266. They may impose fines for the breach of any ordinance
passed under the preceding section not exceeding one hundred
and fifty dollars.

267. No wharf shall be run out, made, altered, enlarged or
extended so as to divert the course of the channel, obstruct the
harbor or basin, or to the injury of the same; and no person
shall make, alter or extend any wharf without laying before the
mayor and city council, or some officer by them for that purpose
appointed, a plan of said wharf, and obtaining the consent of the
mayor and city council to carry the same into effect.

268. If any person shall violate the provisions of the last
preceding section, the mayor and city council may recover, by
warrant before a justice of the peace, a sum not exceeding two
hundred and fifty dollars, and may forthwith cause the said
•wharf to be demolished.

269. The harbor master of the port of Baltimore may demand
from the captain or commander of every foreign vessel coming