Tables of interest at 3, 4, 4 1/2, and 5 per cent from £.1 to £10,000, and from 1 to 365 days, in a regular progression of single days, with tables, at all the above rates, from 1 to 12 months, and from 1 to 10 years : also tables shewing the exchange on bills or the commission on goods ... and tables shewing the amount of any salary, income, or expense, &c. by the day, week, month, or year, and a new table ascertaining what time a sum of money takes to double itself ... : to which are prefixed a table of discount bills ... and a table shewing the exact number of days from any day throughout the year to 31st December, the usual period to which interest on open accounts is calculated /