The negociator's magazine [electronic resource] : or, the most authentick account yet published of the monies, weights, and measures of the principal places of trade in the world. Also An Account of the European Exchanges in general; the Customs of Merchants relating thereto; and Rules and Examples to cast them up by; with the Nature and Use of Simple and Compound Arbitrations; and an History of the English Gold and Silver Coins, for near 500 Years past. To which are added, Curious Calculations of great Use in the West-India, Carolina, and New-England Trades; and Tables, shewing the intrinsick Value of any Foreign Gold, or Silver Coin. All of great Use to Merchants and Traders; and entirely necessary to those who would understand Merchants Accompts. The fourth edition, with many alterations, and great additions. By Richard Hayes, Teacher of Merchants Accompts; late of Princes-Street near the Bank of England, now of Queen-Street near Cheapside.