The Irish comes commercii, or, Trader's-companion : containing I. Exact and useful tables, shewing the value of any quantity of goods or wares ... calculated by Edward Hatton, gent. II. Tables of exchange, in two parts, 1. English money exchanged into Irish, 2. Irish money exchanged into English ... III. An index to interest, containing tables of simple interest, at 5, 6, and 7 per cent ... by E. Hatton ... to all which is prefixed, the new table of coin, as the same was made current by the Lords Justices proclamation, from the 10th day of September, 1737.