An Act for establishing Regulations respecting Rock Salt delivered to the Refineries; for granting Relief for Salt lost at Sea by Shipwreck or Capture; and for reviving, amending and continuing, until the Twenty fifth Day of March One thousand eight hundred and fifteen, so much of an Act of the Forty first Year of His present Majesty as allows the Use of Salt, Duty-free, for curing Fish in Bulk or in Barrels.