by the Parliament of the Dominion of Canada, Statutes of Canada, 31 Victoria… (1867)
“ Whenever the Speaker of the House of Commons, from illness or other cause, finds it necessary to leave the chair during any part of the sittings of the said House, on any day, he may call upon any member thereof to take the Chair and to act as Speaker during the remainder of such day, unless the Speaker himself resume the Chair before the close of the sittings for that day ”
