The accomptants guide, or, Merchants book-keeper [electronic resource] : containing first an explanation of all the most useful and necessary rules of arithmetick, that the meanest capacity thereby may attain to the knowledge thereof : with tables for the reducing of Flemish ells into English, and English into Flemish : also for the ready and exact computing of the custom of Holland cloth, tobacco, and reducing uncertain cask of oyl by the weight in tuns and gallons : and tables of exchange for the ready and exact computing of any sum of money remitted from England to Holland, Flanders, France, Spain and Italy, et contra : instructions for a methodical keeping of merchants accompts, by way of debtor and creditor, directing where to find examples in the journal to the several clauses in the several heeads of trade : with a journal and leager [sic], and from the ballance of the leager is drawn up another inventory / by Robert Chamberlain, accomptant.