Crane's challenge tables : exhibiting the interest on any sum, from 1 cent to $100,000, for any time, at 6, 7, 8, 10, 12, and 18 per cent., computed on the basis of 360 days to the year, together with greatly improved average and time tables, etc., all upon an entirely new plan, and superior for capacity, facility, simplicity, and accuracy to all tables extant /