The Council shall adopt all needful and just ward regulations, whether general or special, for the good of the citizens thereof. It shall authorize street expenditures in the several wards as equity and justice shall demand; and may authorize the collection of a special tax in any ward of the Town, for a specified purpose within such ward, when requested to do so by a majority of the voters thereof. Whenever in the opinion of the Council it becomes necessary to lay off said Town into more than four wards, the said Council shall lay it off.