21. By order published in the Gazette officielle du Québec, the Government may, at any time, extend to any judicial district of Québec, the court house of which has been destroyed by fire, the provisions of chapter 15 of the statutes of 1873/1874, to remedy the losses caused by the burning of the Québec court house; and, thereupon, on and after the day fixed in such order, such provisions shall apply, with the necessary modifications, to every such judicial district.