Hewitt's tables of simple interest : Shewing at one view, the interst of any sum of money, form the penny to 100, 000l. from one day to 365, from one month to II, and from one year to 10, at 3, 4, 5, 6 percent. II. A table of time, which shews the number of days between any two in the year. III. Nine tables of brokerage or commission: the stock or value of good sold, from one pound to 100,000l. at 1/8, 1/4, 1/2, 3/4, 1, 1 1/4, 1 1/2, 1 3/4, 2, 1/4, 2 1/2, 2 3/4, 3, 3 1/4, 3 1/2, 3 3/4, 4, 4,1/4, 4 1/2, 4 3/4, to 5 percent. IV. Nine tables to reduce the most current pieces of gold, both foreign and domestick, into pounds, &c. and on the contrary to reduce pounds, &c. into those different pieces of gold; shewing what each piece should properly weigh. Calculated and examined by John Hewitt, profess'd accomptant.