438 LAWS OF MARYLAND.

483. The Board is further authorized to use the said boat
(or at its discretion the ice boat Latrobe) in the relief from ob-
struction by ice of any of the harbors or channels of the Chesa-
peake bay or its tributaries, when such service can be rendered
without detriment to the commerce of the port of Baltimore,
and for any other service which the said Board may deem ad-
vantageous to commerce and the public interest; the Board
may charge such reasonable rates for towage, or relief of ves-
sels, as it may deem proper, having in view the public and pri-
vate interests and facilities of commerce, and the sum received
for same shall be applied to the expense of the boat.

484. The annual expenses of maintaining and operating
said ice boat shall be paid by the Mayor and City Council of
Baltimore.

485. The said Board shall in its annual report to the
Mayor and City Council of Baltimore embody statements of
the operations of, and the receipts and disbursements for the
said ice boat, and shall send copies of the same to the Governor
and Comptroller of the Treasury of the State.

HEALTH.

Nuisances.

486. Whenever any nuisance dangerous to the health of
the City shall exist in any street, lane or alley of the City, and
it shall be found necessary, in order to the removal of the same,
to have such street, lane or alley paved, the said City may order
the same to be paved, and may recover the amount expended
in paving the same, and the expenses of collection from the
owner of the property fronting thereon, in proportion to the
amount expended in front of said property, by suit against the
owner.

487. The said owner may in such action defend himself
against any such claim for expenses of paving and the collec-
tion thereof by proof that no such nuisances existed, or that
the paving of the said street, lane or alley was not necessary to
the removal or abatement thereof, or that such nuisance was