Rowlett's tables of discount, or interest, on every dollar, from unit, or one, to two thousand; on every ten dollars, from two thousand to two thousand five hundred; on every fifty, from two thousand five hundred to three thousand; and on every five hundred, from three thousand to five thousand; from one, to sixty-four days, inclusive, also for every month, from one to twelve, and for eighteen months, and two years; besides a complete cent table: the whole computed at six per cent ... together with examples ... showing in what manner (by means of the tables) to ascertain the interest, at five, seven, and at eight per cent - Rowlett, John (American Culture Series II., 1802)