Before the terms of peace were actually settled, the House of Commons embraced the opportunity of addressing the Regent upon the advisability of provision being made against the revival of the slave trade in those parts which were about to be ceded to France.[713] Ever since 1792 Bills had from time to time been introduced, with the view of putting down or at least suspending the nefarious traffic, but with little or no success, until in 1807 an Act was passed prohibiting the slave trade, under a penalty of heavy fines. As this Act was not sufficiently deterrent, another Act had been passed in 1811, making slave trading a felony, and so the trade had, after a long struggle, been finally abolished throughout the British dominion. Since 1792 the civic fathers do not appear to have taken any active part in the matter; but when it became known that the peace had been concluded, not only without any guarantee against the revival of the slave trade in parts where it had been abolished by England, and which were now to be ceded to France, but with express stipulations that the traffic should and might be exercised in those parts for a certain number of years, the City again took the matter up. A strong petition was drawn up by the Common Council (4 July), and submitted to both Houses of Parliament. They expressed the deepest regret that by such stipulations "all the labours and exertions of the wise and virtuous in this country, and all the enactments of the legislature," for the abolition of the slave trade had been rendered useless and unavailing. After such a formal recognition in the treaty of the right of France to carry on the abominable traffic, it would be preposterous for the British government to ask the assistance of other powers to put it down. The petitioners, therefore, humbly prayed both Houses to take speedy steps to impress upon his majesty's government the necessity of having the obnoxious clauses rescinded.[714] A week later (11 July) the prince, who, when originally applied to on the matter by the House of Commons, had returned what was then considered a favourable answer, now assured Parliament that he would endeavour to carry out its wishes.[715] [Sidenote: Battle of Waterloo, 18 June, 1815.]