The merchant's magazine: or, Trades-man's treasury [electronic resource] : Containing I. Arithmetick in whole numbers and fractions, vulgar and decimal; with the reason and demonstration of each rule: adorn'd with curious copper-cutts of the chief tables and titles. II. Merchants accompts, or a most concise way of casting up the value of merchandize, tare and trett, interest of coin, rules of barter, loss and gain, fellowship, equation of payment, and several matters relating to exchange: never before made publick. III.Book-keeping, after a plain, easie, and natural method; shewing how to enter, post, close, and ballance an accompt, &c. The second edition. To which is added in this impression (besides many additions in the former work) five whole chapters: viz. I. Maxims concerning bills of exchange, ... II. The post of letters to and from foreign countries; and the days when mails are sent ... III. An account of the commodities produced by all countries; their chief towns for trade, ... IV. A merchant or trader's dictionary, ... V. Presidents [sic] of mercha.