Provided that, as soon as the Minister is satisfied that it has become practicable to raise to sixteen the upper limit of the compulsory school age, he shall lay before Parliament the draft of an Order in Council directing that the foregoing provisions of this section shall have effect as if for references therein to the age of fifteen years there were substituted references to the age of sixteen years; and unless either house of Parliament, within the period of forty days beginning with the the day on which any such draft as aforesaid is laid before it, resolves that the draft be not presented to His Majesty, His Majesty may by Order in Council direct accordingly.In reckoning any such period of forty days, no account shall be taken of any time during which Parliament is dissolved or prorogued or during which both Houses are adjourned for more than four days.