400 CITY OF BALTIMORE. [ART. 4,

P. L. L., (1860,) art. 4, sec. 263.

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

Ibid, sec 264.

348. 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.

Ibid. sec. 265.

349. They may pass such ordinances as they may deem proper
respecting wharves and wharfage, and the keeping of wharves in
repair so 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.

McMurray o. M. & C. C., 54 Md. 103.

Ibid. sec. 266.

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

1884, ch. 809.

351. 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 person authorized by them, a plan of
said wharf, and obtaining the consent of the mayor and city
council, if in session, or of the joint standing committee of the