The act of tonnage and poundage, and book of rates [electronic resource] : with several statutes at large relating to the customs; carefully examined by the records: out of which are collected the variations from the Book of rates, and Act of tonnage and poundage, as now practis'd. With an abridgment of several other statutes concerning the customs. As also the usual tares, ports of England and Wales, lawful keys, and wharfs in the port of London; with the tables of officers fees, scavage, package, balliage, and packers-porters duties. Together with an index of the whole alphabetically digested.