and may prescribe the mode of their joint action; or by forming a joint board consisting of representative members of any two or more sanitary authorities, in the same manner as is by the principal Act provided with respect to the formation of a united district; and the Local Government Board may by provisional order permanently constitute a port sanitary authority for any two or more ports, by forming a joint board consisting of representative members of all or any of the sanitary authorities having jurisdiction within such ports, or any part thereof.
(3.) In any case in which the Local Government Board are by this section authorised permanently to constitute by provisional order a port sanitary authority, the said Board may, if they think fit, until such order has been made and confirmed by Parliament, temporarily constitute by order any such authority, and may renew any such last-mentioned order, and may by any order so made or renewed make any such provisions as they also by this section empowered to make by provisional order.
(4.) Any order constituting a port sanitary authority may assign to such authority any powers, rights, duties, capacities, liabilities, and obligations under the Public Health (Ireland) Acts, 1878 to 1890, or this Act, and direct the mode in which the expenses of such authority are to be paid; and, where such order constitutes a joint board the port sanitary authority, it may contain regulations with respect to any matters for which regulations may be made by a provisional order forming a united district under the principal Act.
(5.) A port in this Act means a port as established for the purposes of the laws relating to the Customs of the United Kingdom.
Jurisdiction of port sanitary authority 10. The order of the Local Government Board constituting a port sanitary authority shall be deemed to give such authority jurisdiction over all waters within the limits of such port, and also over the whole or such portions of the district within the jurisdiction of any sanitary authority as may bo specified in the order.
Powers of port sanitary authority 11. The Local Government Board may by order assign to any port sanitary authority any powers, rights, duties, capacities, and any obligations under the Infectious Disease Prevention Act, 1890, with the necessary modifications.
Delegation of powers by port sanitary authority 12. A port Sanitary authority may, with the sanction of the Local Government Board, delegate to any sanitary authority within authority or bordering on their district the exercise of any powers conferred on such port sanitary authority by the order of the Local Government Board, but, except in so far as such delegation may extend, no other authority shall exercise any powers conferred on a port sanitary authority by the order of the Local Government Board within the district of such port sanitary authority.
Expenses of port sanitary authority 13.—(1.) Any expenses incurred by a port sanitary authority constituted temporarily in carrying into effect any purposes of this Act shall be defrayed out of a common fund to be contributed by the sanitary authorities whose districts abut on or form part of the
