VI. Provided also, and be it enacted, That where any city or town as aforesaid, containing one thousand inhabitants, or where the Lord Lieutenant or other Chief Governor or Governors of _Ireland_ shall direct this Act to be carried into execution, in case the inhabitant householders in any parish or parishes in such city or town shall neglect or refuse to elect and appoint such officers of health, within such time as is required by this Act, or as shall be required by any order of such Lord Lieutenant, or other Chief Governor or Governors, it shall and may be lawful for the Justices of the Peace assembled at the Quarter Sessions, or any adjournment thereof, for the county, city, or town within which such parish shall be situate, and the said Justices are hereby authorized and required, to appoint such officers of health in and for such parish, and also at the same time to appoint and limit what sum shall be raised by assessment on such parish for the purposes of this Act, and such sum shall and may be raised and levied accordingly, in like manner as any other parish assessments, and as if the same had been authorised by the vestries of such parishes, and shall be applied and accounted for in the manner herein before directed. VII. And be it further enacted, That it shall and may be lawful for any one or more of the persons so to be appointed officers of health, and he and they is and are hereby authorized, empowered, and required to cause and direct all streets and lanes, and all yards and courts adjoining thereto, and all houses let in several tenements and room-keepers, and the yards, gardens, or places belonging to such houses, to be cleansed and purified, and all nuisances prejudicial to health to be removed therefrom; and all public sewers to be cleansed, and where necessary, to be covered over, and all lodgments of standing water to be filled up or drained off; and also to cause and direct all other matters and things to be done for the ventilation, fumigation, and cleansing of any house whatever, in which fever or other contagious distemper shall have occurred, and for the washing and purifying the persons and clothes of the inhabitants of every such house, as shall appear to any such officer of health to be indispensably necessary for the preservation and security of the inhabitants of such parish against the danger of contagion, unless due precautions shall have previously been taken for such purposes by the inhabitants of such house; and it shall be lawful for all constables and peace officers, and they are hereby authorized, empowered, and required, to be aiding and assisting to such officers of health in the doing all matters and things whatsoever in the execution of this Act.