18.--(1) Bills for appropriating any part of the public revenue or for imposing any tax shall originate in the Legislative Assembly. (2) It shall not be lawful for the Legislative Assembly to adopt or pass any vote, resolution, address, or Bill for the appropriation for any purpose of any part of the public revenue of Ireland, or of any tax, except in pursuance of a recommendation from the Lord Lieutenant in the session in which such vote, resolution, address, or Bill is proposed. 19.--(1) Two of the judges of the Supreme Court in Ireland shall be Exchequer judges, and shall be appointed under the great seal of the United Kingdom; and their salaries and pensions shall be charged on and paid out of the Consolidated Fund of the United Kingdom. (2) The Exchequer judges shall be removeable only by Her Majesty on address from the two Houses of Parliament, and each such judge shall, save as otherwise provided by Parliament, receive the same salary and be entitled to the same pension as is at the time of his appointment fixed for the puisne judges of the Supreme Court, and during his continuance in office his salary shall not be diminished, nor his right to pension altered, without his consent. (3) An alteration of any rules relating to such legal proceedings as are mentioned in this section shall not be made except with the approval of Her Majesty the Queen in Council; and the sittings of the Exchequer judges shall be regulated with the like approval. (4) All legal proceedings in Ireland, which are instituted at the instance of or against the Treasury or Commissioners of Customs, or any of their officers, or relate to the election of members to serve in Parliament, or touch any matter within the powers of the Irish Legislature, or touch any matter affected by a law which the Irish Legislature have not power to repeal or alter, shall, if so required by any party to such proceedings, be heard and determined before the Exchequer judges or (except where the case requires to be determined by two judges) before one of them, and in any such legal proceeding an appeal shall, if any party so requires, lie from any court of first instance in Ireland to the Exchequer judges, and the decision of the Exchequer judges shall be subject to appeal to Her Majesty the Queen in Council and not to any other tribunal. (5) If it is made to appear to an Exchequer judge that any decree or judgment in any such proceeding as aforesaid has not been duly enforced by the sheriff or other officer whose duty it is to enforce the same, such judge shall appoint some officer whose duty it shall be to enforce the judgment or decree; and for that purpose such officer and all persons employed by him shall be entitled to the same privileges, immunities, and powers as are by law conferred on a sheriff and his officers.