The Dealer's companion, and trader's assistant improved. [electronic resource] : Containing, I. Tables, for shewing the value of any quantity of goods or wares, at any rate, under twenty shillings per yard, stone, pound, ounce, gallon, &c. and of any weight under half a tun. Beginning at half a farthing, and continued further, in a new and more regular method, than any other tables extant. II. Tables of interest, or interest in epitome, in a shorter method than any hitherto published, from one pound to ten millions, at five and six per cent. By Israel Ealgate at the Bank of England. III. A table of exchange of English and Irish money at par, for any sum from 300 pounds to one penny. To which is prefixed, a new table of coin, with the weight and value of each piece, according to the present currency in Ireland.