Duties payable on goods, wares, and merchandize imported into the United States of America : From and after the 30th Sept. 1797. The duties of tonnage; also rates of coins, by which the duties are to be received and estimated: rates of fees, drawbacks, &c. : Also the mode of transacting business at the several custom-houses in the United States, from and after the 30th June, 1799. : With extracts from the revenue laws, and sundry forms for the direction of merchants, masters of vessels, and others concerned.