Duties payable on goods, wares, and merchandize, imported into the United States of America, from and after the last day of June, 1792 : The duties of tonnage, and the rates of coins, by which the duties are to be received and estimated. Rates of drawbacks, debentures, fees, &c. : Also, the mode of transacting business at the Custom-House for the port of Philadelphia, with extracts from the revenue acts, for the direction of merchants, masters of vessels, and others concerned.