An Act to continue several laws relating to the manufactures of sail-cloth and silk : to give further time for the payment of duties omitted to be paid for the indentures or contracts of clerks and apprentices, and for better securing the payment of the said duties; and declaring that prize ships lawfully condemned shall be deemed British built ships; and for allowing prize goods to be landed and secured in proper ware-houses, without payment of any duty, until it can be determined whether they are fit for exportation or home consumption.