Tables of simple and compound interest : calculated to ascertain the amount and present worth of principal sums and annuities, with their comparative values : whether interest and annuities be payable yearly or half-yearly : with explanation and examples : to which are subjoined, a few remarks, in which Dr Price's Observations on reversionary payments, &c. &c. relative to the payment of the national debt, are clearly proven to be erroneous / by John Laurie.