An abstract of the act for enabling the South-Sea Company to increase their present capital stock and fund, by redeeming such publick debts and incumbrances as are therein mentioned; and for raising money to be applied for lessening several of the publick debts and incumbrances; and for calling in the present Exchequer bills remaining uncancelled; and for making forth new bills in lieu thereof, to be circulated and exchanged upon demand at or near the Exchequer.