An Act to extend, until the Twenty ninth Day of September One thousand eight hundred and one, the Provisions of an Act made in the Thirteenth Year of the Reign of His present Majesty, intituled, An Act for the better Cultivation, Improvement and Regulation of the Common Arable Fields, Wastes and Commons of Pasture, in this Kingdom, and for encouraging the Cultivation of Potatoes in Open and Common Field Lands.